FN Thomson Reuters Web of Science™
VR 1.0
PT J
AU Shen, YC
Wu, VY
AF Shen, Yu-Chu
Wu, Vivian Y.
TI Reductions in Medicare Payments and Patient Outcomes An Analysis of 5
Leading Medicare Conditions
SO MEDICAL CARE
LA English
DT Article
DE Medicare; payment reductions; patient outcomes; instrumental variables
ID BALANCED BUDGET ACT; HOSPITAL FINANCIAL CONDITION; REGIONAL-VARIATIONS;
CARE; QUALITY; REIMBURSEMENT; MORTALITY; DECISIONS; CUTS
AB Background:The Affordable Care Act enacted significant Medicare payment reductions to providers, yet the effects of such major reductions on patients remain unclear. We used the Balanced Budget Act (BBA) of 1997 as a natural experiment to study the long-term consequence of major payment reductions on patient outcomes.Objectives:To analyze whether mortality trends diverge over the years between hospitals facing different levels of payment cuts because of the BBA for 5 leading conditions: acute myocardial infarction, congestive heart failure, stroke, pneumonia, and hip fracture.Research Design:Using 100% Medicare claims between 1995 and 2005, hospital database, and published reports on BBA policy components, we compared changes in outcomes between hospitals facing small and large BBA payment reductions across 3 periods (pre-BBA, initial-BBA, and post-BBA) using instrumental variable hospital fixed-effects regression models.Setting:All general, acute, nonrural, short-stay hospitals in the United States 19952005.Main Outcome Measures:Hospital risk-adjusted mortality rates (7, 30, 90 d, and 1 y).Results:Mortality trends between hospitals in small and large payment-cut categories were similar between pre-BBA and initial-BBA periods, but diverged in the post-BBA period. Relative to the small-cut hospitals, hospitals in the large-cut category experienced smaller decline in 1-year mortality rates in the post-BBA period compared with their pre-BBA trends by 0.8-1.4 percentage points, depending on the condition (P<0.05 for all conditions, except for hip fracture).Conclusion:We found consistent evidence across multiple conditions that reductions in Medicare payments are associated with slower improvement in mortality outcomes.
C1 [Shen, Yu-Chu] Naval Postgrad Sch, Grad Sch Business & Publ Policy, Monterey, CA 93943 USA.
[Shen, Yu-Chu] Natl Bur Econ Res, Cambridge, MA 02138 USA.
[Wu, Vivian Y.] Univ So Calif, Sol Price Sch Publ Policy, Los Angeles, CA USA.
RP Shen, YC (reprint author), Naval Postgrad Sch, Grad Sch Business & Publ Policy, Code GB, 555 Dyer Rd, Monterey, CA 93943 USA.
EM yshen@nps.edu
FU Center for Medicare and Medicaid Services, Office of Actuary
[HHSM-500-2011-00139P]
FX Supported by the Center for Medicare and Medicaid Services, Office of
Actuary (HHSM-500-2011-00139P).
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PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0025-7079
EI 1537-1948
J9 MED CARE
JI Med. Care
PD NOV
PY 2013
VL 51
IS 11
BP 970
EP 977
DI 10.1097/MLR.0b013e3182a98337
PG 8
WC Health Care Sciences & Services; Health Policy & Services; Public,
Environmental & Occupational Health
SC Health Care Sciences & Services; Public, Environmental & Occupational
Health
GA 239NZ
UT WOS:000326033800004
PM 24128744
ER
PT J
AU Xu, P
Ackerman, ML
Barber, SD
Schoelz, JK
Thibado, PM
Wheeler, VD
Nyakiti, LO
Myers-Ward, RL
Eddy, CR
Gaskill, DK
AF Xu, P.
Ackerman, M. L.
Barber, S. D.
Schoelz, J. K.
Thibado, P. M.
Wheeler, V. D.
Nyakiti, L. O.
Myers-Ward, R. L.
Eddy, C. R., Jr.
Gaskill, D. K.
TI Competing scanning tunneling microscope tip-interlayer interactions for
twisted multilayer graphene on the a-plane SiC surface
SO SURFACE SCIENCE
LA English
DT Article
DE Twisted graphene; Scanning tunneling microscopy; Silicon carbide; Moire
pattern
ID EPITAXIAL GRAPHENE; BILAYER GRAPHENE; SUSPENDED GRAPHENE;
ATOMIC-STRUCTURE; SILICON-CARBIDE; 4H-SIC 0001; GRAPHITE; GROWTH;
SPECTROSCOPY; NANORIBBONS
AB Scanning tunneling microscopy (STM) images are obtained for the first time on few layer and twisted multilayer epitaxial graphene states synthesized on n(+) 6H-SiC a-plane non-polar surface. The twisted graphene is determined to have a rotation angle of 5.4 degrees between the top two layers, by comparing moire patterns from stick and ball models of bilayer graphene to experimentally obtained images. Furthermore, the experimental moire pattern shows dynamic behavior, continuously shuffling between two stable surface arrangements one bond length apart. The moire pattern shifts by more than 1 nm, making it easy to observe with STM. Explanation of this dynamic behavior is attributed to electrostatic interactions between the STM tip and the graphene sample. (C) 2013 Elsevier B.V. All rights reserved.
C1 [Xu, P.; Ackerman, M. L.; Barber, S. D.; Schoelz, J. K.; Thibado, P. M.] Univ Arkansas, Dept Phys, Fayetteville, AR 72701 USA.
[Wheeler, V. D.; Nyakiti, L. O.; Myers-Ward, R. L.; Eddy, C. R., Jr.; Gaskill, D. K.] US Naval Res Lab, Washington, DC 20375 USA.
RP Thibado, PM (reprint author), Univ Arkansas, Dept Phys, Fayetteville, AR 72701 USA.
EM thibado@uark.edu
RI Barber, Steven/C-2467-2012; Xu, Peng/I-9125-2014
OI Barber, Steven/0000-0002-3191-9453;
FU ONR [N00014-10-1-0181]; NSF [DMR-0855358]; Office of Naval Research;
ASEE
FX P.X. and P.M.T. gratefully acknowledge the financial support of ONR
under grant N00014-10-1-0181 and NSF under grant DMR-0855358. Work at
the U.S. Naval Research Laboratory is supported by the Office of Naval
Research. L.O.N. gratefully acknowledges the postdoctoral fellowship
support through the ASEE.
NR 44
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PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0039-6028
EI 1879-2758
J9 SURF SCI
JI Surf. Sci.
PD NOV
PY 2013
VL 617
BP 113
EP 117
DI 10.1016/j.susc.2013.06.012
PG 5
WC Chemistry, Physical; Physics, Condensed Matter
SC Chemistry; Physics
GA 241BJ
UT WOS:000326141100016
ER
PT J
AU Chew, BN
Campbell, JR
Salinas, SV
Chang, CW
Reid, JS
Welton, EJ
Holben, BN
Liew, SC
AF Chew, Boon Ning
Campbell, James R.
Salinas, Santo V.
Chang, Chew Wai
Reid, Jeffrey S.
Welton, Ellsworth J.
Holben, Brent N.
Liew, Soo Chin
TI Aerosol particle vertical distributions and optical properties over
Singapore
SO ATMOSPHERIC ENVIRONMENT
LA English
DT Article
DE AERONET; ENSO; MPLNET; Lidar; Maritime Continent; Southeast Asia
ID SPECTRAL-RESOLUTION LIDAR; SUN-PHOTOMETER DATA; MARITIME CONTINENT;
MICROPULSE LIDAR; SOUTHEAST-ASIA; FORECAST MODEL; BOUNDARY-LAYER; CLOUD;
DEPTH; SENSITIVITY
AB As part of the Seven Southeast Asian Studies (7SEAS) program, an Aerosol Robotic Network (AERONET) sun photometer and a Micro-Pulse Lidar Network (MPLNET) instrument have been deployed at Singapore to study the regional aerosol environment of the Maritime Continent (MC). Using coincident AERONET Level 2.0 and MPLNET Level 2.0a data from 24 September 2009 to 31 March 2011, the seasonal variability of aerosol particle vertical distributions and optical properties is examined. On average, the bulk (similar to 65%) of aerosol extinction is found below 1.5 km with substantial aerosol loading (similar to 35%) above. Possibly due to the transition from El Nifio to La Nifia conditions and subsequent reduction in fire events, the MPLNET mean integrated aerosol extinction is observed to be the lowest for July September 2010, which coincides with the typical MC biomass burning season. On the other hand, the highest mean integrated extinctions are derived for January March 2010 and 2011, which can be attributed to off-season MC biomass burning smoke and anthropogenic pollution. The seasonal lidar ratios also show higher occurrences >60 sr, which are indicative of biomass burning smoke, for October 2009 June 2010, but such occurrences decrease from July 2010 to March 2011 when La Nifia conditions prevail. In addition, principal component analysis (PCA) identifies five primary aerosol vertical profile types over Singapore, i.e. strongly-capped/deep near-surface layer (SCD; 0-1.35 km), enhanced mid-level layer (EML; 1.35-2.4 km), enhanced upper-level layer (EUL; 2.4-3.525 km), deep contiguous layer (DCL; 3.525-4.95 km) and deep multi-layer (DML; >4.95 km). PCA also identifies an off-season MC biomass burning smoke event from 22 February to 8 March 2010, which is subsequently examined in detail. (C) 2013 Elsevier Ltd. All rights reserved.
C1 [Chew, Boon Ning; Salinas, Santo V.; Chang, Chew Wai; Liew, Soo Chin] Natl Univ Singapore, Ctr Remote Imaging Sensing & Proc, Singapore 119076, Singapore.
[Campbell, James R.; Reid, Jeffrey S.] Naval Res Lab, Marine Meteorol Div, Monterey, CA 93943 USA.
[Welton, Ellsworth J.] NASA, Goddard Space Flight Ctr, Micro Pulse Lidar Network, Greenbelt, MD 20771 USA.
[Holben, Brent N.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
RP Chew, BN (reprint author), Natl Univ Singapore, Ctr Remote Imaging Sensing & Proc, Block S17,Level 2,10 Lower Kent Ridge Rd, Singapore 119076, Singapore.
EM crscbn@nus.edu.sg
RI Campbell, James/C-4884-2012; Reid, Jeffrey/B-7633-2014; Liew, Soo
Chin/C-9187-2011; Chew, Boon Ning/M-2405-2016
OI Campbell, James/0000-0003-0251-4550; Reid, Jeffrey/0000-0002-5147-7955;
Liew, Soo Chin/0000-0001-8342-4682; Chew, Boon Ning/0000-0002-2933-7788
FU NASA Earth Observing System and Radiation Sciences Programs; Office of
Naval Research (ONR); ONR Global and NASA; NASA Interagency Agreement
NNG12HGO5I on behalf of NASA MPLNET
FX AERONETand MPLNETare supported with funding from the NASA Earth
Observing System and Radiation Sciences Programs. The AERONET and MPLNET
instruments are deployed at Singapore as part of the Seven Southeast
Asian Studies (7SEAS) field campaign, as sponsored by the Office of
Naval Research (ONR), ONR Global and NASA. Dr. Campbell acknowledges the
support of NASA Interagency Agreement NNG12HGO5I on behalf of NASA
MPLNET. Dr. Reid's participation is supported by the NRL 6.1 Base
Program. The authors would like to thank the Department of Civil and
Environmental Engineering, and NUS Environmental Research Institute
(NERI) at the National University of Singapore for hosting the 7SEAS
atmospheric measurement supersite, and Singapore's National Environment
Agency for collecting and archiving the surface air quality data.
NR 68
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PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 1352-2310
EI 1873-2844
J9 ATMOS ENVIRON
JI Atmos. Environ.
PD NOV
PY 2013
VL 79
BP 599
EP 613
DI 10.1016/j.atmosenv.2013.06.026
PG 15
WC Environmental Sciences; Meteorology & Atmospheric Sciences
SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences
GA 236YF
UT WOS:000325834700068
ER
PT J
AU Tran, BR
Thomas, AG
Ditsela, M
Vaida, F
Phetogo, R
Kelapile, D
Chambers, C
Haubrich, R
Shaffer, R
AF Tran, Bonnie Robin
Thomas, Anne Goldzier
Ditsela, Mooketsi
Vaida, Florin
Phetogo, Robert
Kelapile, David
Chambers, Christina
Haubrich, Richard
Shaffer, Richard
TI Condom use behaviours and correlates of use in the Botswana Defence
Force
SO INTERNATIONAL JOURNAL OF STD & AIDS
LA English
DT Article
DE HIV; AIDS; military populations; sexual behaviours; condom use;
prevention; military; soldiers; Africa
ID HUMAN-IMMUNODEFICIENCY-VIRUS; SEXUAL-BEHAVIOR; REPRODUCTIVE HEALTH; MALE
CIRCUMCISION; MILITARY MEN; SOUTH-AFRICA; HIV; RISK; KNOWLEDGE;
PERSONNEL
AB Preventing HIV infection is a priority for militaries. HIV prevention research is needed to monitor existing programme, identify areas for modification, and develop new interventions. Correct and consistent condom use is highly effective against HIV. However, use among soldiers is lower than ideal. This study describes condom use behaviours and examines correlates of use in the Botswana Defence Force (BDF). Analyses were based on 211 male BDF personnel, aged 18-30, who completed a cross-sectional survey that collected baseline data for an intervention study. Results showed that 51% of participants reported always using condoms, 35% used condoms most times, and 14% used condoms occasionally/never. Condom use varied by partner type and was typically higher with casual partners in comparison to regular partners. After adjustment for age and marital status, factors associated with lower condom use included excessive alcohol use, perception that using condoms reduce sexual pleasure, and having a trusted partner. However, higher levels of HIV knowledge and reports of being circumcised were protective against lower condom use. HIV interventions aimed at increasing condom use in the BDF should address condom perceptions, alcohol abuse, and issues of trust. Innovative ways to increase condom use in this population should also be explored.
C1 [Tran, Bonnie Robin; Thomas, Anne Goldzier; Shaffer, Richard] Naval Hlth Res Ctr, Dept Def HIV AIDS Prevent Program, San Diego, CA USA.
[Ditsela, Mooketsi; Phetogo, Robert] Botswana Def Force, Gaborone, Botswana.
[Vaida, Florin] Univ Calif San Diego, Dept Family & Prevent Med, Div Biostat & Bioinformat, San Diego, CA 92103 USA.
[Kelapile, David] US Embassy, Gaborone, Botswana.
[Chambers, Christina] Univ Calif San Diego, Dept Pediat & Family & Prevent Med, San Diego, CA 92103 USA.
[Haubrich, Richard] Univ Calif San Diego, Dept Med, San Diego, CA 92103 USA.
RP Tran, BR (reprint author), Naval Hlth Res Ctr, 140 Sylvester Rd, San Diego, CA 92106 USA.
EM bonnie.tran@med.navy.mil
FU Department of Defense HIV/AIDS Prevention Program [60546]; President's
Emergency Plan for AIDS Relief
FX This research is supported by the Department of Defense HIV/AIDS
Prevention Program, under work unit 60546. Funding for this study was
provided by the President's Emergency Plan for AIDS Relief.
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PU SAGE PUBLICATIONS LTD
PI LONDON
PA 1 OLIVERS YARD, 55 CITY ROAD, LONDON EC1Y 1SP, ENGLAND
SN 0956-4624
EI 1758-1052
J9 INT J STD AIDS
JI Int. J. STD AIDS
PD NOV
PY 2013
VL 24
IS 11
BP 883
EP 892
DI 10.1177/0956462413486889
PG 10
WC Immunology; Infectious Diseases
SC Immunology; Infectious Diseases
GA 231KT
UT WOS:000325416100007
PM 23970609
ER
PT J
AU Seaver, M
Chattopadhyay, A
Papandreou-Suppapola, A
Kim, SB
Kovvali, N
Farrar, CR
Triplett, MH
Derriso, MM
AF Seaver, Mark
Chattopadhyay, Aditi
Papandreou-Suppapola, Antonia
Kim, Seung B.
Kovvali, Narayan
Farrar, Charles R.
Triplett, Matt H.
Derriso, Mark M.
TI Workshop on transitioning structural health monitoring technology to
military platforms
SO JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES
LA English
DT Article
DE Structural health monitoring; control; embedded intelligence
AB Interest in structural health monitoring/management is attracting lots of attention across a spectrum that ranges from sensor developers to end users. The US military, in particular, is making a concerted effort to implement condition-based maintenance as a means of reducing the life cycle costs and improving availability of various weapon platforms. Despite this effort, the majority of installed health monitoring systems are limited to rotating machinery such as engines, transmissions, and other gear boxes. The goal of this workshop was to bring together representatives from military, industry, and academia covering the spectrum from hardware developers to end users and platform managers and have them discuss issues that must be addressed as structural health monitoring systems mature to the point that managers will implement them. This article describes those discussions and highlights important issues that need to be addressed as structural health monitoring systems make the transition from laboratory scale demonstrations to real-world use.
C1 [Seaver, Mark] Naval Res Lab, Washington, DC 20375 USA.
[Chattopadhyay, Aditi; Kim, Seung B.] Arizona State Univ, Sch Engn Matter Transport & Energy, Tempe, AZ 85287 USA.
[Papandreou-Suppapola, Antonia; Kovvali, Narayan] Arizona State Univ, Sch Elect Comp & Energy Engn, Tempe, AZ 85287 USA.
[Kim, Seung B.] United Technol Res Ctr, E Hartford, CT 06118 USA.
[Farrar, Charles R.] Los Alamos Natl Lab, Engn Inst, Los Alamos, NM 87545 USA.
[Triplett, Matt H.] AMSRD AMR PS AM, Redstone Arsenal, AL 35898 USA.
[Derriso, Mark M.] Air Force Res Lab, Air Vehicles Directorate, Wright Patterson AFB, OH 45433 USA.
RP Seaver, M (reprint author), Naval Res Lab, Code 5673, Washington, DC 20375 USA.
EM mark.seaver.ctr@nrl.navy.mil
RI Lin, Zhao/C-8319-2011;
OI Lin, Zhao/0000-0002-6131-9723; Farrar, Charles/0000-0001-6533-6996
FU Office of Naval Research; Air Force Office of Scientific Research; Air
Force Research Laboratory; Army Aviation and Missile Research
Development and Engineering Center
FX This research was funded by Ignacio Perez (Office of Naval Research),
David Stargel (Air Force Office of Scientific Research), Mark Derriso
(Air Force Research Laboratory), and Matt Triplett (Army Aviation and
Missile Research Development and Engineering Center).
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PU SAGE PUBLICATIONS LTD
PI LONDON
PA 1 OLIVERS YARD, 55 CITY ROAD, LONDON EC1Y 1SP, ENGLAND
SN 1045-389X
EI 1530-8138
J9 J INTEL MAT SYST STR
JI J. Intell. Mater. Syst. Struct.
PD NOV
PY 2013
VL 24
IS 17
SI SI
BP 2063
EP 2073
DI 10.1177/1045389X12440753
PG 11
WC Materials Science, Multidisciplinary
SC Materials Science
GA 235HF
UT WOS:000325707100002
ER
PT J
AU Hunke, EC
Hebert, DA
Lecomte, O
AF Hunke, Elizabeth C.
Hebert, David A.
Lecomte, Olivier
TI Level-ice melt ponds in the Los Alamos sea ice model, CICE
SO OCEAN MODELLING
LA English
DT Article
DE Sea ice; Albedo; Melt ponds; Ridging; Modeling; Arctic
ID SPECTRAL ALBEDO; EVOLUTION; SNOW; TRANSPORT; DYNAMICS; AEROSOLS; SUMMER
AB A new meltpond parameterization has been developed for the CICE sea ice model, taking advantage of the level ice tracer available in the model. The ponds evolve according to physically based process descriptions, assuming a depth-area ratio for changes in pond volume. A novel aspect of the new scheme is that the ponds are carried as tracers on the level ice area of each thickness category, thus limiting their spatial extent based on the simulated sea ice topography. This limiting is meant to approximate the horizontal drainage of melt water into depressions in ice floes. Simulated melt pond processes include collection of liquid melt water and rain into ponds, drainage through permeable sea ice or over the edges of floes, infiltration of snow by pond water, and refreezing of ponds. Furthermore, snow that falls on top of ponds whose top surface has refrozen blocks radiation from penetrating into the ponds and sea ice below.
Along with a control simulation, we present a range of sensitivity tests to parameters related to each subprocess described by the parameterization. With the exception of one parameter that alters the albedo of snow-covered pond ice, results are not highly sensitive to these parameters unless an entire process is removed. The snow simulation itself is critical, because the volume of snow deposition and rate of snow melt largely determine the timing and extent of the simulated melt ponds. Nevertheless, compensating effects moderate the model's sensitivity to precipitation changes. For instance, infiltration of the snow by melt water postpones the appearance of ponds and the subsequent acceleration of melting through albedo feedback, while snow on top of refrozen pond ice also reduces the ponds' effect on the radiation budget.
By construction, the model simulation of level and ridged ice is also important for this parameterization. We find that as sea ice thins, either through time or when comparing sensitivity tests, the area of level ice increases. This leads to an enhanced thinning feedback in the model, because a greater ice area may be exposed to ponding and further thinning due to lowered albedo. (C) 2012 Elsevier Ltd. All rights reserved.
C1 [Hunke, Elizabeth C.] Los Alamos Natl Lab, Div Theoret, Fluid Dynam & Solid Mech Grp T3, Los Alamos, NM 87545 USA.
[Hebert, David A.] Naval Res Lab, Div Oceanog, Stennis Space Ctr, MS USA.
[Lecomte, Olivier] Catholic Univ Louvain, Earth & Life Inst, Georges Lemaitre Ctr Earth & Climate Res, B-1348 Louvain, Belgium.
RP Hunke, EC (reprint author), Los Alamos Natl Lab, MS-B216, Los Alamos, NM 87545 USA.
EM eclare@lanl.gov
FU Earth System Modeling and Regional and Global Climate Modeling programs
of the Office of Biological and Environmental Research within the U.S.
Department of Energy's Office of Science; National Nuclear Security
Administration of the DOE [DE-AC52-06NA25396]
FX This modeling venture originated as a student project during the 2011
IARC Summer School on "Modeling of the Arctic Climate System,'' held at
the International Arctic Research Center in Fair-banks, Alaska, in May
2011. We extend special thanks to John Walsh and Vladimir Alexeev for
organizing this event. Hunke is supported by the Earth System Modeling
and Regional and Global Climate Modeling programs of the Office of
Biological and Environmental Research within the U.S. Department of
Energy's Office of Science; Los Alamos National Laboratory is operated
by the National Nuclear Security Administration of the DOE under
Contract No. DE-AC52-06NA25396. D. Hebert is supported by NRL's 6.1 Core
Program "Determining the Impact of Sea Ice Thickness on the Arctic's
Naturally Changing Environment (DISTANCE)'' (Program Element PE
0602435N). O. Lecomte is partly supported by the European Commission's
7th Framework Programme, under Grant Agreement No. 226520, COMBINE
Project (Comprehensive Modelling of the Earth System for Better Climate
Prediction and Projection).
NR 43
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PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 1463-5003
EI 1463-5011
J9 OCEAN MODEL
JI Ocean Model.
PD NOV
PY 2013
VL 71
BP 26
EP 42
DI 10.1016/j.ocemod.2012.11.008
PG 17
WC Meteorology & Atmospheric Sciences; Oceanography
SC Meteorology & Atmospheric Sciences; Oceanography
GA 234LP
UT WOS:000325646000004
ER
PT J
AU Helmis, CG
Wang, Q
Sgouros, G
Wang, S
Halios, C
AF Helmis, C. G.
Wang, Q.
Sgouros, G.
Wang, S.
Halios, Ch
TI Investigating the Summertime Low-Level Jet Over the East Coast of the
USA: A Case Study
SO BOUNDARY-LAYER METEOROLOGY
LA English
DT Article
DE Baroclinicity; CBLAST-Low; Frictional decoupling; Hilbert-Huang
transform; Low-level jet; Richardson number; Sodar
ID ATMOSPHERIC BOUNDARY-LAYER; DEFORMATION FRONTOGENESIS; INERTIAL
OSCILLATIONS; CALIFORNIA COAST; MIXING HEIGHT; CLIMATOLOGY; SODAR; SEA;
TURBULENCE; EVOLUTION
AB The vertical structure of the marine atmospheric boundary layer (MABL) and the summertime low-level jet (LLJ) along the east coast of the U.S.A. was studied in the framework of a joint expedition (CBLAST-Low), carried out during the summer of 2003 (31 July-27 August) at Nantucket island, Massachusetts, U.S.A. Analyzing measurements from radiosondes, in-situ and remote sensing systems, it was found that within the lower part of the stable MABL, intermittent and persistent LLJ events were frequently observed. Evidence is presented implying that the analyzed jet case was induced by the interaction of a slow-moving cyclone over north-eastern U.S.A. and the stationary high pressure system over the Atlantic Ocean, as well as by the sloping inversion of the MABL. Focused on a 5-day period of persistent south-westerly (marine) flow, the analysis of sodar and radiosonde data revealed the presence of a stable layer associated with increased static stability just before the emergence of low-level flow acceleration. As indicated by the Richardson number profiles, the increased stability of the lower MABL suppressed turbulence, allowed the decoupling of LLJ from friction, providing a favourable environment for the development of inertial oscillations. Significant amplitudes of inertial motions, which were confirmed by the application of a Hilbert-Huang transform, are associated with the acceleration at the LLJ's core, due to the frontal events and the subsequent frictional decoupling, both leading to a modification of the large-scale flow structure.
C1 [Helmis, C. G.; Sgouros, G.; Halios, Ch] Univ Athens, Fac Phys, Dept Environm Phys & Meteorol, Athens 15784, Greece.
[Wang, Q.] Naval Postgrad Sch, Dept Meteorol, Monterey, CA USA.
[Wang, S.] Naval Res Lab, Monterey, CA USA.
RP Helmis, CG (reprint author), Univ Athens, Fac Phys, Dept Environm Phys & Meteorol, Univ Campus,Bldg Phys 5, Athens 15784, Greece.
EM chelmis@phys.uoa.gr
OI Halios, Christos/0000-0001-8301-8449
FU Office of Naval Research (ONR); University of Athens
FX This work was supported by the Office of Naval Research (ONR) and the
University of Athens. The authors are indebted to Dr. Jim Edson for his
efforts during CBLAST-Low project and Dr. Kostas Rados for his efforts
during the Nantucket campaign.
NR 35
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PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0006-8314
J9 BOUND-LAY METEOROL
JI Bound.-Layer Meteor.
PD NOV
PY 2013
VL 149
IS 2
BP 259
EP 276
DI 10.1007/s10546-013-9841-y
PG 18
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 228XG
UT WOS:000325224800007
ER
PT J
AU Woo, DJ
Sneed, B
Peerally, F
Heer, FC
Brewer, LN
Hooper, JP
Osswald, S
AF Woo, D. J.
Sneed, B.
Peerally, F.
Heer, F. C.
Brewer, L. N.
Hooper, J. P.
Osswald, S.
TI Synthesis of nanodiamond-reinforced aluminum metal composite powders and
coatings using high-energy ball milling and cold spray
SO CARBON
LA English
DT Article
ID WALLED CARBON NANOTUBES; MATRIX COMPOSITES; MECHANICAL-PROPERTIES;
RAMAN-SPECTROSCOPY; DIAMOND; DISPERSION; GRAPHITE
AB Nanodiamond-reinforced aluminum metal matrix composites (ND-Al MMC) powders were synthesized by means of high energy ball milling. We present a systematic study of the effect of various milling conditions on the structure and properties of the resulting MMC powders. The described method can be used to control important powder characteristics, including particle size and shape, Al crystal size and residual strain, and structural integrity and dispersion of the nanoparticle inclusions, a crucial requirement for subsequent powder consolidation. Raman spectroscopy was utilized for the first time to directly verify the structural integrity and the dispersion of ND in the Al matrix. For low ball-to-powder ratios (BPR), average particle size and size range of the ND-Al composite powders were found to decrease during milling, while the hardness increases. A BPR of 10:1, a milling time of 10 h, and a ND content of 10 wt.% were most effective in obtaining small powder particle sizes, small Al crystal sizes, and improved mechanical properties reaching a hardness of 3.46 GPa, a 210% increase over the pristine, untreated Al powder (1.10 GPa). Finally, we demonstrate that the as-produced composite powders are well-suited for low-temperature consolidation processing by fabricating the first cold-sprayed ND-Al MMC coating. Published by Elsevier Ltd.
C1 [Woo, D. J.; Peerally, F.; Hooper, J. P.; Osswald, S.] Naval Postgrad Sch, Dept Phys, Monterey, CA 93943 USA.
[Sneed, B.; Heer, F. C.; Brewer, L. N.; Osswald, S.] Naval Postgrad Sch, Dept Mech & Aerosp Engn, Monterey, CA 93943 USA.
RP Osswald, S (reprint author), Naval Postgrad Sch, Dept Phys, 833 Dyer Rd, Monterey, CA 93943 USA.
EM sosswald@nps.edu
FU Office of Naval Research
FX The authors would like to thank Dr. Sarath Menon (NPS) for his
assistance with SEM analysis and Mr. Douglas Seivwright (NPS) for his
help with cold spray deposition. This work was supported by the Office
of Naval Research.
NR 59
TC 15
Z9 15
U1 5
U2 63
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0008-6223
EI 1873-3891
J9 CARBON
JI Carbon
PD NOV
PY 2013
VL 63
BP 404
EP 415
DI 10.1016/j.carbon.2013.07.001
PG 12
WC Chemistry, Physical; Materials Science, Multidisciplinary
SC Chemistry; Materials Science
GA 223XI
UT WOS:000324845400042
ER
PT J
AU MacGregor, AJ
Tang, JJ
Dougherty, AL
Galarneau, MR
AF MacGregor, Andrew J.
Tang, Janet J.
Dougherty, Amber L.
Galarneau, Michael R.
TI Deployment-related injury and posttraumatic stress disorder in US
military personnel
SO INJURY-INTERNATIONAL JOURNAL OF THE CARE OF THE INJURED
LA English
DT Article
DE Posttraumatic stress disorder; PTSD; Deployment; Injury; Mental health;
Military; Battle; Non-battle
ID PERSIAN-GULF-WAR; TRAUMATIC BRAIN-INJURY; MENTAL-HEALTH PROBLEMS;
VIETNAM VETERANS; COMBAT; IRAQ; AFGHANISTAN; SERVICE; CASUALTIES;
MORBIDITY
AB Background: The current military conflicts in Iraq and Afghanistan have resulted in the most US casualties since the Vietnam War. Previous research on the association between deployment-related injury and posttraumatic stress disorder (PTSD) has yielded mixed results.
Objectives: To examine the effect of battle injury (BI) relative to non-battle injury (NBI) on the manifestation of PTSD symptoms in military personnel and to assess the demographic, injury-specific, and pre-injury factors associated with PTSD following a BI.
Patients and methods: A total of 3403 personnel with deployment-related injury (1777 BI and 1626 NBI) were identified from the Expeditionary Medical Encounter Database. Records were electronically matched to Post-Deployment Health Assessment (PDHA) data completed 1-6 months post-injury. The PTSD screening outcome was identified using a four-item screening tool on the PDHA.
Results: Compared to those with NBI, personnel with BI had more severe injuries, reported higher levels of combat exposure, and had higher rates of positive PTSD screen. After adjusting for covariates, personnel with BI were twice as likely to screen positive for PTSD compared to those with NBI (odds ratio [OR], 2.10; 95% confidence interval [CI], 1.60-2.75). In multivariable analysis among battle-injured personnel only, moderate and serious-severe injury (OR, 1.49; 95% CI, 1.12-2.00 and OR, 1.64; 95% CI, 1.01-2.68, respectively), previous mental health diagnosis within 1 year of deployment (OR, 2.69; 95% CI, 1.50-4.81), and previous BI (OR, 1.96; 95% CI, 1.22-3.16) predicted a positive PTSD screen.
Conclusions: Military personnel with BI have increased odds of positive PTSD screen following combat deployment compared to those with NBI. Post-deployment health questionnaires may benefit from questions that specifically address whether service members experienced an injury during combat. Published by Elsevier Ltd.
C1 [MacGregor, Andrew J.; Tang, Janet J.; Dougherty, Amber L.; Galarneau, Michael R.] Naval Hlth Res Ctr, Dept Med Modeling Simulat & Mission Support, San Diego, CA 92106 USA.
RP MacGregor, AJ (reprint author), Naval Hlth Res Ctr, 140 Sylvester Rd, San Diego, CA 92106 USA.
EM andrew.macgregor@med.navy.mil
FU US Navy Medicine Bureau of Medicine and Surgery, Falls Church, VA, under
the Wounded, Ill and Injured program [60819]
FX This work was supported by the US Navy Medicine Bureau of Medicine and
Surgery, Falls Church, VA, under the Wounded, Ill and Injured program,
Work Unit No. 60819. 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 US
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.2003.0025). The authors thank Science Applications
International Corporation, Inc., for its contributions to this work.
NR 39
TC 7
Z9 7
U1 0
U2 15
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0020-1383
J9 INJURY
JI Injury-Int. J. Care Inj.
PD NOV
PY 2013
VL 44
IS 11
BP 1458
EP 1464
DI 10.1016/j.injury.2012.10.009
PG 7
WC Critical Care Medicine; Emergency Medicine; Orthopedics; Surgery
SC General & Internal Medicine; Emergency Medicine; Orthopedics; Surgery
GA 227ZT
UT WOS:000325155000014
PM 23137798
ER
PT J
AU Chang, YC
Tseng, RS
Chen, GY
Chu, PC
Shen, YT
AF Chang, Yu-Chia
Tseng, Ruo-Shan
Chen, Guan-Yu
Chu, Peter C.
Shen, Yung-Ting
TI Ship Routing Utilizing Strong Ocean Currents
SO JOURNAL OF NAVIGATION
LA English
DT Article
DE SVP drifter; Kuroshio; Energy-saving; Route
ID LUZON STRAIT; CHINA SEA; KUROSHIO; CLIMATE; VARIABILITY; EMISSIONS;
WATER; SOUTH
AB From the Surface Velocity Program (SVP) drifter current data, a detailed and complete track of strong ocean currents in the north-western Pacific is provided using the bin average method. The focus of this study is on the Kuroshio, the strong western boundary current of the North Pacific flowing northward along the east coast of Taiwan and then turning eastward off southern Japan. With its average flow speed of about 2 knots, the Kuroshio can significantly increase the ship's speed for a "super-slow-steaming"container ship travelling at speeds of 12 knots between the ports of Southeast Asia and Japan. By properly utilizing knowledge of strong ocean currents to follow the Kuroshio on the northbound runs and avoid it on the return trip, considerable fuel can be saved and the transit time can be reduced. In the future, the detailed Kuroshio saving-energy route could be built into electronic chart systems for all navigators and shipping routers.
C1 [Chang, Yu-Chia; Tseng, Ruo-Shan; Chen, Guan-Yu; Shen, Yung-Ting] Natl Sun Yat Sen Univ, Asia Pacific Ocean Res Ctr, Kaohsiung 804, Taiwan.
[Chu, Peter C.] Naval Postgrad Sch, Dept Oceanog, Monterey, CA 93943 USA.
RP Chang, YC (reprint author), Natl Sun Yat Sen Univ, Asia Pacific Ocean Res Ctr, Kaohsiung 804, Taiwan.
EM rstseng@mail.nsysu.edu.tw
FU Aim for the Top University Plan from the Ministry of Education
[01C030203]; National Science Council of Taiwan, Republic of China
[NSC101-2611-M-110-006]
FX This research was supported by the Grants from Aim for the Top
University Plan from the Ministry of Education (01C030203) and National
Science Council (NSC101-2611-M-110-006) of Taiwan, Republic of China.
The Naval Oceanographic Office supported Peter C. Chu.
NR 25
TC 10
Z9 10
U1 2
U2 21
PU CAMBRIDGE UNIV PRESS
PI NEW YORK
PA 32 AVENUE OF THE AMERICAS, NEW YORK, NY 10013-2473 USA
SN 0373-4633
J9 J NAVIGATION
JI J. Navig.
PD NOV
PY 2013
VL 66
IS 6
BP 825
EP 835
DI 10.1017/S0373463313000441
PG 11
WC Engineering, Marine; Oceanography
SC Engineering; Oceanography
GA 228WP
UT WOS:000325222900003
ER
PT J
AU Field, DP
Lewis, A
Rollett, AD
Wright, SI
AF Field, David P.
Lewis, Alexis
Rollett, Anthony D.
Wright, Stuart I.
TI Quantification of Texture and Microstructure Gradients in
Polycrystalline Materials Foreword
SO METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND
MATERIALS SCIENCE
LA English
DT Editorial Material
C1 [Field, David P.] Washington State Univ, Pullman, WA 99164 USA.
[Lewis, Alexis] Naval Res Lab, Washington, DC USA.
[Rollett, Anthony D.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA.
[Wright, Stuart I.] EDAX TSL, Draper, UT USA.
RP Field, DP (reprint author), Washington State Univ, Pullman, WA 99164 USA.
EM dfield@wsu.edu
RI Field, David/D-5216-2012; Rollett, Anthony/A-4096-2012
OI Field, David/0000-0001-9415-0795; Rollett, Anthony/0000-0003-4445-2191
NR 0
TC 0
Z9 0
U1 0
U2 8
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1073-5623
J9 METALL MATER TRANS A
JI Metall. Mater. Trans. A-Phys. Metall. Mater. Sci.
PD NOV
PY 2013
VL 44A
IS 11
BP 4880
EP 4880
DI 10.1007/s11661-013-1908-3
PG 1
WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical
Engineering
SC Materials Science; Metallurgy & Metallurgical Engineering
GA 223QM
UT WOS:000324822100005
ER
PT J
AU Shabaev, A
Hoang, K
Papaconstantopoulos, DA
Mehl, MJ
Kioussis, N
AF Shabaev, A.
Hoang, Khang
Papaconstantopoulos, D. A.
Mehl, M. J.
Kioussis, N.
TI Tight-binding studies of bulk properties and hydrogen vacancies in KBH4
SO COMPUTATIONAL MATERIALS SCIENCE
LA English
DT Article
DE Tight binding; First principles; Hydrogen storage; Potassium
borohydride; Hydrogen vacancies
ID TOTAL-ENERGY CALCULATIONS; INITIO MOLECULAR-DYNAMICS; AUGMENTED-WAVE
METHOD; 1ST-PRINCIPLES CALCULATIONS; ALKALI BOROHYDRIDES; NOBLE-METALS;
BASIS-SET; TRANSITION; STORAGE; CS
AB We present computational studies of the bulk properties and hydrogen vacancies in KBH4 using tight-binding (TB) calculations. The NRL-TB method was used to construct a TB Hamiltonian by fitting the density-functional theory (DFT) data for the electronic energies for the tetragonal and cubic phases of KBH4 as a function of volume. Our approach allows for computationally efficient calculations of phonon frequencies and elastic constants, mean-square displacements, and formation energies of hydrogen vacancies using the static and molecular dynamics modules of the NRL-TB code. We find that the results for the bulk properties and hydrogen vacancies given by TB calculations are comparable to those given by DFT calculations. (c) 2013 Elsevier B.V. All rights reserved.
C1 [Shabaev, A.; Hoang, Khang; Papaconstantopoulos, D. A.] George Mason Univ, Computat Mat Sci Ctr, Fairfax, VA 22030 USA.
[Hoang, Khang] N Dakota State Univ, Ctr Computationally Assisted Sci & Technol, Fargo, ND 58108 USA.
[Mehl, M. J.] Naval Res Lab, Ctr Computat Mat Sci, Washington, DC 20375 USA.
[Kioussis, N.] Calif State Univ Northridge, Dept Phys, Northridge, CA 91330 USA.
RP Papaconstantopoulos, DA (reprint author), George Mason Univ, Computat Mat Sci Ctr, Fairfax, VA 22030 USA.
EM dpapacon@gmu.edu
RI Hoang, Khang/C-2879-2008; Mehl, Michael/H-8814-2016
OI Hoang, Khang/0000-0003-1889-0745;
FU U.S. Department of Energy [DE-FG02-07ER46425]; DOE Office of Science
[DE-AC02-05CH11231]; U.S. Naval Research Laboratory
[NRL-N00173-08-G001]; Center for Computationally Assisted Science and
Technology (CCAST) at North Dakota State University; NSF [DMR-1205734];
U.S. Office of Naval Research
FX We thank N. Bernstein for helpful discussions and H. Stokes for the use
of the ISOTROPY package. This work was partially supported by the U.S.
Department of Energy (Grant No. DE-FG02-07ER46425) and made use of NERSC
resources supported by the DOE Office of Science (Contract No.
DE-AC02-05CH11231). K.H. was supported by the U.S. Naval Research
Laboratory (Grant No. NRL-N00173-08-G001) and by the Center for
Computationally Assisted Science and Technology (CCAST) at North Dakota
State University. N.K. was supported by NSF (Grant No. DMR-1205734).
M.M. was supported by the U.S. Office of Naval Research. Some VASP
calculations were performed at the U.S. Department of Defense ERDC and
AFRL High-Performance Computing Resource Centers.
NR 36
TC 2
Z9 2
U1 0
U2 18
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0927-0256
EI 1879-0801
J9 COMP MATER SCI
JI Comput. Mater. Sci.
PD NOV
PY 2013
VL 79
BP 888
EP 895
DI 10.1016/j.commatsci.2013.06.055
PG 8
WC Materials Science, Multidisciplinary
SC Materials Science
GA 218ZE
UT WOS:000324471100110
ER
PT J
AU Loehr, NA
Serrano, LG
Warrington, GS
AF Loehr, Nicholas A.
Serrano, Luis G.
Warrington, Gregory S.
TI Transition matrices for symmetric and quasisymmetric Hall-Littlewood
polynomials
SO JOURNAL OF COMBINATORIAL THEORY SERIES A
LA English
DT Article
DE Symmetric functions; Quasisymmetric functions; Hall-Littlewood
polynomials; Standardization; Young tableaux; Noncommutative symmetric
functions
ID MACDONALD POLYNOMIALS; SHIFTED TABLEAUX; CONJECTURE; OPERATORS; ALGEBRAS
AB We introduce explicit combinatorial interpretations for the coefficients in some of the transition matrices relating to skew Hall-Littlewood polynomials P-lambda/mu(t) and Hivert's quasisymmetric Hall-Littlewood polynomials G(gamma)(t). More specifically, we provide:
1. the G-expansions of the Hall-Littlewood polynomials P-lambda(t), the monomial quasisymmetric polynomials M-alpha, the quasisymmetric Schur polynomials S-alpha, and the peak quasisymmetric functions K-alpha;
2. an expansion of P-lambda/mu(t) in terms of the F-alpha's.
The F-expansion of P-lambda/mu(t) is facilitated by introducing starred tableaux. (c) 2013 Elsevier Inc. All rights reserved.
C1 [Loehr, Nicholas A.] Virginia Tech, Dept Math, Blacksburg, VA 24061 USA.
[Loehr, Nicholas A.] US Naval Acad, Dept Math, Annapolis, MD 21402 USA.
[Serrano, Luis G.] Univ Quebec, Lab Combinatoire & Informat Math LaCIM, Montreal, PQ H3C 3P8, Canada.
[Warrington, Gregory S.] Univ Vermont, Dept Math & Stat, Burlington, VT 05401 USA.
RP Loehr, NA (reprint author), Virginia Tech, Dept Math, Blacksburg, VA 24061 USA.
EM nloehr@vt.edu; serrano@lacim.ca; gregory.warrington@uvm.edu
FU Simons Foundation [244398, 197419]; Natural Science and Engineering
Research Council of Canada PDF grant; National Security Agency
[H98230-09-1-0023]; National Science Foundation [DMS-1201312]
FX This work was partially supported by a grant from the Simons Foundation
(#244398 to Nicholas Loehr).; Author supported by a Natural Science and
Engineering Research Council of Canada PDF grant.; Supported in part by
National Security Agency grant H98230-09-1-0023 and National Science
Foundation grant DMS-1201312. This work was partially supported by a
grant from the Simons Foundation (#197419 to Greg Warrington).
NR 32
TC 1
Z9 1
U1 0
U2 0
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0097-3165
J9 J COMB THEORY A
JI J. Comb. Theory Ser. A
PD NOV
PY 2013
VL 120
IS 8
BP 1996
EP 2019
DI 10.1016/j.jcta.2013.07.008
PG 24
WC Mathematics
SC Mathematics
GA 225MQ
UT WOS:000324967400003
ER
PT J
AU Wiggins, AD
Zalek, SF
Perlin, M
Ceccio, SL
Doctors, LJ
Etter, RJ
AF Wiggins, Andrew D.
Zalek, Steven F.
Perlin, Marc
Ceccio, Steven L.
Doctors, Lawrence J.
Etter, Robert J.
TI Development of a Large-scale Surface Effect Ship Bow Seal Testing
Platform
SO JOURNAL OF SHIP PRODUCTION AND DESIGN
LA English
DT Article
DE surface effect ship; bow seal; resistance; free surface channel
AB A large-scale surface effect ship (SES) bow seal testing platform was constructed by the University of Michigan and is presently being commissioned at the U.S. Navy's Large Cavitation Channel (LCC) in Memphis, TN. Using a recently installed (2008) free-surface forming gate, the test platform is capable of investigating the physics of the two-dimensional planing seal and three-dimensional finger-type bow seal in calm water conditions and at scales relevant to SES designers and numerical modelers. The LCC environment permits extended run times at high Reynolds number and provides unfettered optical access to the seal geometry and flow field. This article describes the development of the testing platform and presents some preliminary results. The test platform is nominally 7.9 m long, 1.52 m wide, and 2.0 m tall and of welded and bolted steel construction. The seals are nominally sized similar to those currently used by the U.S. Navy's Landing Craft Air Cushion class. An extensive measurement suite was integrated with the test platform. The goal was to provide numerical modelers a data set with sufficient spatial and temporal resolution to validate their models of the experiment and, where appropriate, to develop new analytic models. The results of this effort demonstrate a feasible system for investigating surface effect ship seal physics within a large free surface water channel.
C1 [Wiggins, Andrew D.; Zalek, Steven F.; Perlin, Marc; Ceccio, Steven L.] Univ Michigan, Dept Naval Architecture & Marine Engn, Ann Arbor, MI 48109 USA.
[Doctors, Lawrence J.] Univ New S Wales, Sch Mech & Mfg Engn, Sydney, NSW, Australia.
[Etter, Robert J.] Naval Surface Warfare Ctr, Carderock Div, West Bethesda, MD USA.
RP Wiggins, AD (reprint author), Univ Michigan, Dept Naval Architecture & Marine Engn, Ann Arbor, MI 48109 USA.
NR 12
TC 0
Z9 0
U1 1
U2 3
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 NOV
PY 2013
VL 29
IS 4
BP 191
EP 198
DI 10.5957/JSPD.29.4.130045
PG 8
WC Engineering, Marine
SC Engineering
GA AW0CT
UT WOS:000345958600004
ER
PT J
AU Kwon, YW
Priest, EM
Gordis, JH
AF Kwon, Y. W.
Priest, E. M.
Gordis, J. H.
TI Investigation of vibrational characteristics of composite beams with
fluid-structure interaction
SO COMPOSITE STRUCTURES
LA English
DT Article
DE Fluid-structure interaction; Modal analysis; Vibration; Modal curvature
ID RECTANGULAR-PLATES; CONTACT; WATER
AB The study examined the effect of fluid-structure interaction on global dynamic properties such as vibrational frequency, mode shape, modal curvature, as well as free vibrational responses along E-glass composite, carbon composite, and aluminum beams, respectively. The digital image correlation technique was used to measure the free vibrational responses along the beams in air and water, respectively. The vibration submerged in water exhibited higher frequency modes than the dry vibration under the same excitation. Experimental modal analysis showed that the mode shapes were very close for an aluminum beam with and without the FSI effect while there was a modest difference for a carbon composite beam because the PSI effect is greater for the composite beam. Modal curvatures for the both beams are more influenced by PSI, especially for the composite beam. The curvature is directly related to the bending strain of the beam. This explains why the difference in strains measured for composite structures in air and water, respectively, varies significantly from location to location of the structures under impact loading. One location has much greater difference in strains than another location. The FSI can change potential failure locations of the composite structures because of the change in modal curvatures. Published by Elsevier Ltd.
C1 [Kwon, Y. W.; Priest, E. M.; Gordis, J. H.] Naval Postgrad Sch, Dept Mech & Aerosp Engn, Monterey, CA 93943 USA.
RP Kwon, YW (reprint author), Naval Postgrad Sch, Dept Mech & Aerosp Engn, Monterey, CA 93943 USA.
EM ywkwon@nps.edu
FU ONR Solid Mechanics Program
FX The authors would like to express their thanks to Ms. Wenschel Lan for
providing assistances with the modal analysis tests, and the first
author appreciates the support from the ONR Solid Mechanics Program
managed by Dr. Yapa Rajapakse.
NR 17
TC 8
Z9 9
U1 0
U2 18
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0263-8223
EI 1879-1085
J9 COMPOS STRUCT
JI Compos. Struct.
PD NOV
PY 2013
VL 105
BP 269
EP 278
DI 10.1016/j.compstruct.2013.05.032
PG 10
WC Materials Science, Composites
SC Materials Science
GA 204VQ
UT WOS:000323399800028
ER
PT J
AU Qiao, JC
Pelletier, JM
Casalini, R
AF Qiao, Jichao
Pelletier, Jean-Marc
Casalini, Riccardo
TI Relaxation of Bulk Metallic Glasses Studied by Mechanical Spectroscopy
SO JOURNAL OF PHYSICAL CHEMISTRY B
LA English
DT Article
ID FREE-VOLUME MODEL; STRUCTURAL RELAXATION; SECONDARY RELAXATIONS;
PLASTIC-DEFORMATION; SUPERCOOLED LIQUIDS; FORMING SYSTEMS; ATOMIC
MOBILITY; TRANSITION; DYNAMICS; TEMPERATURE
AB The relaxational dynamics in metallic glasses (MGs) is investigated by using mechanical spectroscopy. The spectra show that in MGs there are two relaxations: (i) the alpha relaxation, linked to the glass transition, as observed in other classes of amorphous materials; and (ii) the beta relaxation, well observed below the glass transition, with an intensity strongly dependent on the MG composition, the nature of which has been linked to the local microstructure of MGs. For the investigated MGs we find that the intensity and relaxation time of the beta relaxation depends, in a reproducible fashion, on the thermal history of the samples. During aging experiments, the intensity decreases (as well as the tau(beta)) with a time dependence described well by a stretched exponential, with an exponent beta(aging) independent of the driving frequency. Moreover, we find that the activation energy U-beta and the peak temperature T-beta p of the beta relaxation follow the approximate relationship: U-beta approximate to 31.5RT(beta p) (for driving frequency 1 Hz), indicating that the high temperature limit of the peak frequency is approximately the same for all the MGs investigated. Finally, the frequency separation of the alpha and beta processes in the mechanical loss spectra for La-and Pd-based metallic glasses is tested against the prediction of the Coupling Model.
C1 [Qiao, Jichao; Pelletier, Jean-Marc] Univ Lyon, CNRS, Lyon, France.
[Qiao, Jichao; Pelletier, Jean-Marc] Inst Natl Sci Appl, MATEIS UMR5510, F-69621 Villeurbanne, France.
[Casalini, Riccardo] US Navy, Res Lab, Div Chem, Washington, DC 20375 USA.
RP Pelletier, JM (reprint author), Univ Lyon, CNRS, Lyon, France.
EM jean-marc.pelletier@insa-lyon.fr
FU Centre National de la Recherche Scientifique (CNRS); Office of Naval
Research
FX The authors appreciate Dr. K. L. Ngai for valuable discussions and
suggestions. One of the authors, J. C. Qiao, would like to thank the
Centre National de la Recherche Scientifique (CNRS) for providing the
postdoctoral financial support. R. Casalini acknowledges the support of
the Office of Naval Research for the work at NRL. We thank W. H. Wang's
group (Institute of Physics, CAS) for providing the samples.
NR 63
TC 25
Z9 25
U1 9
U2 36
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1520-6106
J9 J PHYS CHEM B
JI J. Phys. Chem. B
PD OCT 31
PY 2013
VL 117
IS 43
BP 13658
EP 13666
DI 10.1021/jp4067179
PG 9
WC Chemistry, Physical
SC Chemistry
GA 247HM
UT WOS:000326608500030
PM 24070200
ER
PT J
AU Zeng, B
Watanabe, D
Zhang, QR
Li, G
Besara, T
Siegrist, T
Xing, LY
Wang, XC
Jin, CQ
Goswami, P
Johannes, MD
Balicas, L
AF Zeng, B.
Watanabe, D.
Zhang, Q. R.
Li, G.
Besara, T.
Siegrist, T.
Xing, L. Y.
Wang, X. C.
Jin, C. Q.
Goswami, P.
Johannes, M. D.
Balicas, L.
TI Small and nearly isotropic hole-like Fermi surfaces in LiFeAs detected
through de Haas-van Alphen effect
SO PHYSICAL REVIEW B
LA English
DT Article
ID SUPERCONDUCTING PROPERTIES
AB LiFeAs is unique among the arsenic based Fe-pnictide superconductors because it is the only nearly stoichiometric compound which does not exhibit magnetic order. This is at odds with electronic structure calculations which find a very stable magnetic state and predict cylindrical hole-and electron-like Fermi surface sheets whose geometry suggests spin fluctuations and a possible instability toward long-range ordering at the nesting vector. In fact, a complex magnetic phase diagram is indeed observed in the isostructural NaFeAs compound. Previous angle-resolved photoemission (ARPES) experiments revealed the existence of both hole and electron-like surfaces, but with rather distinct cross-sectional areas and an absence of the nesting that is thought to underpin both magnetic order and superconductivity in the pnictide family of superconductors. These ARPES observations were challenged by subsequent de Haas-van Alphen (dHvA) measurements which detected a few, electron-like Fermi surface sheets in rough agreement with the original band calculations. Here, we show a detailed dHvA study unveiling additional, small and nearly isotropic Fermi surface sheets in LiFeAs single crystals, which ought to correspond to hole-like orbits, as previously observed by ARPES. Therefore, our results reconcile the apparent discrepancy between ARPES and the previous dHvA results. The small size of these Fermi surface pockets suggests a prominent role for the electronic correlations in LiFeAs. The absence of gap nodes, in combination with the coexistence of quasi-two-dimensional and three-dimensional Fermi surfaces, favor an s-wave pairing symmetry for LiFeAs. But similar electron-like Fermi surfaces combined with very different hole pockets between LiFeAs and LiFeP suggest that the nodes in the gap function of LiFeP might be located on the hole pockets. This would be difficult to reconcile with the current understanding of the s +/- scenario.
C1 [Zeng, B.; Watanabe, D.; Zhang, Q. R.; Li, G.; Besara, T.; Siegrist, T.; Goswami, P.; Balicas, L.] Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32310 USA.
[Watanabe, D.] Kyoto Univ, Dept Phys, Kyoto 6068502, Japan.
[Siegrist, T.] Florida State Univ, Dept Chem & Biomed Engn, Tallahassee, FL 32310 USA.
[Xing, L. Y.; Wang, X. C.; Jin, C. Q.] Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China.
[Johannes, M. D.] Naval Res Lab, Ctr Computat Mat Sci, Washington, DC 20375 USA.
RP Zeng, B (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; Li, Gang/E-3033-2015;
OI Zeng, Bin/0000-0002-0090-4371; Besara, Tiglet/0000-0002-2143-2254
FU DOE-BES [DE-SC0002613, DE-SC0008832]; FSU; Office of Naval Research
(ONR) through the Naval Research Laboratory's Basic Research Program;
NSF [NSF-DMR-0084173]; State of Florida
FX We acknowledge useful discussions with A. Chubukov, Z. P. Yin, K. Haule,
and P. J. Hirschfeld. L. B. is supported by DOE-BES through award
DE-SC0002613. T. B. and T. S. are supported by DOE-BES through award
DE-SC0008832, and by FSU. Funding for M. D. J. was provided by the
Office of Naval Research (ONR) through the Naval Research Laboratory's
Basic Research Program. The NHMFL is supported by NSF through
NSF-DMR-0084173 and the State of Florida.
NR 37
TC 9
Z9 9
U1 0
U2 28
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
EI 1550-235X
J9 PHYS REV B
JI Phys. Rev. B
PD OCT 30
PY 2013
VL 88
IS 14
AR 144518
DI 10.1103/PhysRevB.88.144518
PG 7
WC Physics, Condensed Matter
SC Physics
GA 242VS
UT WOS:000326272700002
ER
PT J
AU Marsh, JC
Ma, WC
Hagemann, GB
Janssens, RVF
Bengtsson, R
Ryde, H
Carpenter, MP
Gurdal, G
Hartley, DJ
Hoffman, CR
Ijaz, QA
Kondev, FG
Lauritsen, T
Mukhopadhyay, S
Riedinger, LL
Yadav, RB
Zhu, S
AF Marsh, J. C.
Ma, W. C.
Hagemann, G. B.
Janssens, R. V. F.
Bengtsson, R.
Ryde, H.
Carpenter, M. P.
Guerdal, G.
Hartley, D. J.
Hoffman, C. R.
Ijaz, Q. A.
Kondev, F. G.
Lauritsen, T.
Mukhopadhyay, S.
Riedinger, L. L.
Yadav, R. B.
Zhu, S.
TI Identification of triaxial strongly deformed bands in Hf-164
SO PHYSICAL REVIEW C
LA English
DT Article
ID HIGH-SPIN; WOBBLING EXCITATIONS; SPECTROSCOPY; NUCLEI; MODE
AB Two new rotational bands of distinct character have been identified in Hf-164. They are suggested to correspond to the long-anticipated triaxial strongly deformed (TSD) bands predicted by theoretical studies. The bands have been linked to known states, and the level spins and energies could be determined. The bands are also substantially stronger in intensity and are located at lower spins than the previously observed TSD bands in Hf-168, hereby making Hf-164 the best even-even system so far for the study of TSD structures in the A similar to 160 mass region. Cranking calculations based on the modified-oscillator model suggest that the bands are associated with four-quasiparticle configurations that involve high-j intruder (i(13/2))(2) proton orbitals.
C1 [Marsh, J. C.; Ma, W. C.; Ijaz, Q. A.; Yadav, R. B.] Mississippi State Univ, Dept Phys & Astron, Mississippi State, MS 39762 USA.
[Hagemann, G. B.] Niels Bohr Inst, DK-2100 Copenhagen, Denmark.
[Janssens, R. V. F.; Carpenter, M. P.; Hoffman, C. R.; Lauritsen, T.; Zhu, S.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
[Bengtsson, R.] Lund Inst Technol, Dept Math Phys, S-22100 Lund, Sweden.
[Ryde, H.] Lund Univ, Dept Nucl Phys, S-22100 Lund, Sweden.
[Guerdal, G.; Kondev, F. G.] Argonne Natl Lab, Nucl Engn Div, Argonne, IL 60439 USA.
[Hartley, D. J.] US Naval Acad, Dept Phys, Annapolis, MD 21402 USA.
[Mukhopadhyay, S.] Bhabha Atom Res Ctr, Div Nucl Phys, Bombay 400085, Maharashtra, India.
[Riedinger, L. L.] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
RP Marsh, JC (reprint author), Mississippi State Univ, Dept Phys & Astron, Mississippi State, MS 39762 USA.
RI Carpenter, Michael/E-4287-2015; Hoffman, Calem/H-4325-2016
OI Carpenter, Michael/0000-0002-3237-5734; Hoffman,
Calem/0000-0001-7141-9827
FU U.S. Department of Energy, Office of Nuclear Physics [DE-FG02-95ER40939,
DE-AC02-06CH11357]; National Science Foundation [PHY-1203100]
FX The authors thank the ANL operations at Gammasphere and gratefully
acknowledge the efforts of J. P. Green for the target preparation. This
work was supported by the U.S. Department of Energy, Office of Nuclear
Physics, under Grants No. DE-FG02-95ER40939 (MSU) and No.
DE-AC02-06CH11357 (ANL) and the National Science Foundation under Grant
No. PHY-1203100 (USNA).
NR 30
TC 5
Z9 5
U1 0
U2 3
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0556-2813
EI 1089-490X
J9 PHYS REV C
JI Phys. Rev. C
PD OCT 28
PY 2013
VL 88
IS 4
AR 041306
DI 10.1103/PhysRevC.88.041306
PG 5
WC Physics, Nuclear
SC Physics
GA 241IV
UT WOS:000326161000001
ER
PT J
AU Ackermann, M
Ajello, M
Albert, A
Allafort, A
Baldini, L
Barbiellini, G
Bastieri, D
Bechtol, K
Bellazzini, R
Bissaldi, E
Bloom, ED
Bonamente, E
Bottacini, E
Brandt, TJ
Bregeon, J
Brigida, M
Bruel, P
Buehler, R
Buson, S
Caliandro, GA
Cameron, RA
Caraveo, PA
Casandjian, JM
Cecchi, C
Charles, E
Chaves, RCG
Chekhtman, A
Chiang, J
Ciprini, S
Claus, R
Cohen-Tanugi, J
Conrad, J
Cutini, S
D'Ammando, F
de Angelis, A
de Palma, F
Dermer, CD
Digel, SW
Di Venere, L
Drell, PS
Drlica-Wagner, A
Essig, R
Favuzzi, C
Fegan, SJ
Ferrara, EC
Focke, WB
Franckowiak, A
Fukazawa, Y
Funk, S
Fusco, P
Gargano, F
Gasparrini, D
Germani, S
Giglietto, N
Giordano, F
Giroletti, M
Glanzman, T
Godfrey, G
Gomez-Vargas, GA
Grenier, IA
Guiriec, S
Gustafsson, M
Hadasch, D
Hayashida, M
Hill, AB
Horan, D
Hou, X
Hughes, RE
Inoue, Y
Izaguirre, E
Jogler, T
Kamae, T
Knodlseder, J
Kuss, M
Lande, J
Larsson, S
Latronico, L
Longo, F
Loparco, F
Lovellette, MN
Lubrano, P
Malyshev, D
Mayer, M
Mazziotta, MN
McEnery, JE
Michelson, PF
Mitthumsiri, W
Mizuno, T
Moiseev, AA
Monzani, ME
Morselli, A
Moskalenko, IV
Murgia, S
Nakamori, T
Nemmen, R
Nuss, E
Ohsugi, T
Okumura, A
Omodei, N
Orienti, M
Orlando, E
Ormes, JF
Paneque, D
Perkins, JS
Pesce-Rollins, M
Piron, F
Pivato, G
Raino, S
Rando, R
Razzano, M
Razzaque, S
Reimer, A
Reimer, O
Romani, RW
Sanchez-Conde, M
Schulz, A
Sgro, C
Siegal-Gaskins, J
Siskind, EJ
Snyder, A
Spandre, G
Spinelli, P
Suson, DJ
Tajima, H
Takahashi, H
Thayer, JG
Thayer, JB
Tibaldo, L
Tinivella, M
Tosti, G
Troja, E
Uchiyama, Y
Usher, TL
Vandenbroucke, J
Vasileiou, V
Vianello, G
Vitale, V
Winer, BL
Wood, KS
Wood, M
Yang, Z
Zaharijas, G
Zimmer, S
AF Ackermann, M.
Ajello, M.
Albert, A.
Allafort, A.
Baldini, L.
Barbiellini, G.
Bastieri, D.
Bechtol, K.
Bellazzini, R.
Bissaldi, E.
Bloom, E. D.
Bonamente, E.
Bottacini, E.
Brandt, T. J.
Bregeon, J.
Brigida, M.
Bruel, P.
Buehler, R.
Buson, S.
Caliandro, G. A.
Cameron, R. A.
Caraveo, P. A.
Casandjian, J. M.
Cecchi, C.
Charles, E.
Chaves, R. C. G.
Chekhtman, A.
Chiang, J.
Ciprini, S.
Claus, R.
Cohen-Tanugi, J.
Conrad, J.
Cutini, S.
D'Ammando, F.
de Angelis, A.
de Palma, F.
Dermer, C. D.
Digel, S. W.
Di Venere, L.
Drell, P. S.
Drlica-Wagner, A.
Essig, R.
Favuzzi, C.
Fegan, S. J.
Ferrara, E. C.
Focke, W. B.
Franckowiak, A.
Fukazawa, Y.
Funk, S.
Fusco, P.
Gargano, F.
Gasparrini, D.
Germani, S.
Giglietto, N.
Giordano, F.
Giroletti, M.
Glanzman, T.
Godfrey, G.
Gomez-Vargas, G. A.
Grenier, I. A.
Guiriec, S.
Gustafsson, M.
Hadasch, D.
Hayashida, M.
Hill, A. B.
Horan, D.
Hou, X.
Hughes, R. E.
Inoue, Y.
Izaguirre, E.
Jogler, T.
Kamae, T.
Knoedlseder, J.
Kuss, M.
Lande, J.
Larsson, S.
Latronico, L.
Longo, F.
Loparco, F.
Lovellette, M. N.
Lubrano, P.
Malyshev, D.
Mayer, M.
Mazziotta, M. N.
McEnery, J. E.
Michelson, P. F.
Mitthumsiri, W.
Mizuno, T.
Moiseev, A. A.
Monzani, M. E.
Morselli, A.
Moskalenko, I. V.
Murgia, S.
Nakamori, T.
Nemmen, R.
Nuss, E.
Ohsugi, T.
Okumura, A.
Omodei, N.
Orienti, M.
Orlando, E.
Ormes, J. F.
Paneque, D.
Perkins, J. S.
Pesce-Rollins, M.
Piron, F.
Pivato, G.
Raino, S.
Rando, R.
Razzano, M.
Razzaque, S.
Reimer, A.
Reimer, O.
Romani, R. W.
Sanchez-Conde, M.
Schulz, A.
Sgro, C.
Siegal-Gaskins, J.
Siskind, E. J.
Snyder, A.
Spandre, G.
Spinelli, P.
Suson, D. J.
Tajima, H.
Takahashi, H.
Thayer, J. G.
Thayer, J. B.
Tibaldo, L.
Tinivella, M.
Tosti, G.
Troja, E.
Uchiyama, Y.
Usher, T. L.
Vandenbroucke, J.
Vasileiou, V.
Vianello, G.
Vitale, V.
Winer, B. L.
Wood, K. S.
Wood, M.
Yang, Z.
Zaharijas, G.
Zimmer, S.
TI Search for gamma-ray spectral lines with the Fermi Large Area Telescope
and dark matter implications
SO PHYSICAL REVIEW D
LA English
DT Article
ID GALAXY
AB Weakly interacting massive particles (WIMPs) are a theoretical class of particles that are excellent dark matter candidates. WIMP annihilation or decay may produce essentially monochromatic gamma rays detectable by the Fermi Large Area Telescope (LAT) against the astrophysical gamma-ray emission of the Galaxy. We have searched for spectral lines in the energy range 5-300 GeV using 3.7 years of data, reprocessed with updated instrument calibrations and an improved energy dispersion model compared to the previous Fermi-LAT Collaboration line searches. We searched in five regions selected to optimize sensitivity to different theoretically motivated dark matter density distributions. We did not find any globally significant lines in our a priori search regions and present 95% confidence limits for annihilation cross sections of self-conjugate WIMPs and decay lifetimes. Our most significant fit occurred at 133 GeV in our smallest search region and had a local significance of 3.3 standard deviations, which translates to a global significance of 1.5 standard deviations. We discuss potential systematic effects in this search, and examine the feature at 133 GeV in detail. We find that the use both of reprocessed data and of additional
C1 [Ackermann, M.; Buehler, R.; Mayer, M.; Schulz, A.] Deutsch Elektronen Synchrotron DESY, D-15738 Zeuthen, Germany.
[Ajello, M.] Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA.
[Albert, A.; Hughes, R. E.; Winer, B. L.] Ohio State Univ, Dept Phys, Ctr Cosmol & AstroParticle Phys, Columbus, OH 43210 USA.
[Allafort, A.; Bechtol, K.; Bloom, E. D.; Bottacini, E.; Cameron, R. A.; Charles, E.; Chiang, J.; Claus, R.; Digel, S. W.; Di Venere, L.; Drell, P. S.; Drlica-Wagner, A.; Essig, R.; Focke, W. B.; Franckowiak, A.; Funk, S.; Glanzman, T.; Godfrey, G.; Hayashida, M.; Hill, A. B.; Inoue, Y.; Izaguirre, E.; Jogler, T.; Kamae, T.; Lande, J.; Malyshev, D.; Michelson, P. F.; Mitthumsiri, W.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Okumura, A.; Omodei, N.; Orlando, E.; Paneque, D.; Reimer, A.; Reimer, O.; Romani, R. W.; Sanchez-Conde, M.; Snyder, A.; Tajima, H.; Thayer, J. G.; Thayer, J. B.; Tibaldo, L.; Usher, T. L.; Vandenbroucke, J.; Vianello, G.; Wood, M.] Stanford Univ, Dept Phys, Kavli Inst Particle Astrophys & Cosmol, W W Hansen Expt Phys Lab, Stanford, CA 94305 USA.
[Allafort, A.; Bechtol, K.; Bloom, E. D.; Bottacini, E.; Cameron, R. A.; Charles, E.; Chiang, J.; Claus, R.; Digel, S. W.; Di Venere, L.; Drell, P. S.; Drlica-Wagner, A.; Essig, R.; Focke, W. B.; Franckowiak, A.; Funk, S.; Glanzman, T.; Godfrey, G.; Hayashida, M.; Hill, A. B.; Inoue, Y.; Izaguirre, E.; Jogler, T.; Kamae, T.; Lande, J.; Malyshev, D.; Michelson, P. F.; Mitthumsiri, W.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Okumura, A.; Omodei, N.; Orlando, E.; Paneque, D.; Reimer, A.; Reimer, O.; Romani, R. W.; Sanchez-Conde, M.; Snyder, A.; Tajima, H.; Thayer, J. G.; Thayer, J. B.; Tibaldo, L.; Usher, T. L.; Vandenbroucke, J.; Vianello, G.; Wood, M.] Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA.
[Baldini, L.] Univ Pisa, I-56127 Pisa, Italy.
[Baldini, L.] Ist Nazl Fis Nucl, I-56127 Pisa, Italy.
[Barbiellini, G.; Longo, F.; Zaharijas, G.] Ist Nazl Fis Nucl, Sez Trieste, I-34127 Trieste, Italy.
[Barbiellini, G.; Longo, F.] Univ Trieste, Dipartmento Fis, I-34127 Trieste, Italy.
[Bastieri, D.; Buson, S.; Rando, R.] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy.
[Bastieri, D.; Buson, S.; Pivato, G.; Rando, R.] Univ Padua, Dipartimento Fis & Astron G Galilei, I-35131 Padua, Italy.
[Bellazzini, R.; Bregeon, J.; Kuss, M.; Pesce-Rollins, M.; Razzano, M.; Sgro, C.; Spandre, G.; Tinivella, M.] Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy.
[Bissaldi, E.; Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria.
[Bissaldi, E.; Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria.
[Bonamente, E.; Cecchi, C.; Germani, S.; Lubrano, P.; Tosti, G.] Ist Nazl Fis Nucl, Sez Perigue, I-06123 Perugia, Italy.
[Bonamente, E.; Cecchi, C.; Germani, S.; Lubrano, P.; Tosti, G.] Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy.
[Brandt, T. J.; Ferrara, E. C.; Guiriec, S.; McEnery, J. E.; Moiseev, A. A.; Nemmen, R.; Perkins, J. S.; Troja, E.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Giglietto, N.; Giordano, F.; Loparco, F.; Raino, S.; Spinelli, P.] M Merlin Univ Politecn Bari, Dipartimento Fis, I-70126 Bari, Italy.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Gargano, F.; Giglietto, N.; Giordano, F.; Loparco, F.; Mazziotta, M. N.; Raino, S.; Spinelli, P.] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy.
[Bruel, P.; Fegan, S. J.; Horan, D.] Ecole Polytech, CNRS, Lab Leprince Ringuet, IN2P3, F-91128 Palaiseau, France.
[Caliandro, G. A.; Hadasch, D.] Inst Ciencies Espai, IEEE CSIC, Barcelona 08193, Spain.
[Caraveo, P. A.] INAF, Ist Astrofis Spaziale & Fis Cosm, I-20133 Milan, Italy.
[Casandjian, J. M.; Chaves, R. C. G.; Grenier, I. A.] Univ Paris Diderot, CEA IRFU CNRS, Lab AIM, Serv Astrophys, F-91191 Gif Sur Yvette, France.
[Chekhtman, A.] George Mason Univ, Coll Sci, Ctr Earth Observing & Space Res, Fairfax, VA 22030 USA.
[Ciprini, S.; Cutini, S.; Gasparrini, D.] ASI, Sci Data Ctr, I-00044 Rome, Italy.
[Ciprini, S.; Cutini, S.; Gasparrini, D.] Osserv Astron Roma, Ist Nazl Astrofis, I-00040 Rome, Italy.
[Cohen-Tanugi, J.; Nuss, E.; Piron, F.; Vasileiou, V.] Univ Montpellier 2, CNRS, IN2P3, Lab Univ & Particules Montpellier, F-34095 Montpellier, France.
[Conrad, J.; Larsson, S.; Yang, Z.; Zimmer, S.] Stockholm Univ, AlbaNova, Dept Phys, SE-10691 Stockholm, Sweden.
[Conrad, J.; Larsson, S.; Yang, Z.; Zimmer, S.] AlbaNova, Oskar Klein Ctr Cosmoparticle Phys, SE-10691 Stockholm, Sweden.
[Conrad, J.] Royal Swedish Acad Sci, SE-10405 Stockholm, Sweden.
CNR, Ist Radioastron, INAF, I-40129 Bologna, Italy.
[de Angelis, A.] Univ Udine, Dipartimento Fis, I-33100 Udine, Italy.
[de Angelis, A.] Ist Nazl Fis Nucl, Grup Collegato Udine, Sez Trieste, I-33100 Udine, Italy.
[Dermer, C. D.; Lovellette, M. N.; Wood, K. S.] Naval Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Fukazawa, Y.; Takahashi, H.] Hiroshima Univ, Dept Phys Sci, Higashihiroshima, Hiroshima 7398526, Japan.
[Gomez-Vargas, G. A.; Morselli, A.; Vitale, V.] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, I-00133 Rome, Italy.
[Gomez-Vargas, G. A.] Univ Autonoma Madrid, Dept Fis Teor, E-28049 Madrid, Spain.
[Gomez-Vargas, G. A.] Univ Autonoma Madrid, Inst Fis Teor, IFT UAM CSIC, E-28049 Madrid, Spain.
[Gustafsson, M.] Univ Libre Bruxelles, Serv Phys Theor, B-1050 Brussels, Belgium.
[Hayashida, M.] Kyoto Univ, Grad Sch Sci, Dept Astron, Sakyo Ku, Kyoto 6068502, Japan.
[Hill, A. B.] Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England.
[Hou, X.] CEN Bordeaux Gradignan, Univ Bordeaux 1, IN2P3 CNRS, F-33175 Gradignan, France.
[Knoedlseder, J.] CNRS, IRAP, F-31028 Toulouse 4, France.
[Knoedlseder, J.] Univ Toulouse, GAHEC, UPS OMP, IRAP, Toulouse, France.
[Larsson, S.] Stockholm Univ, Dept Astron, SE-10691 Stockholm, Sweden.
[Latronico, L.] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy.
[McEnery, J. E.; Moiseev, A. A.] Univ Maryland, Dept Phys, College Pk, MD 20742 USA.
[McEnery, J. E.; Moiseev, A. A.] Univ Maryland, Dept Astron, College Pk, MD 20742 USA.
[Mizuno, T.; Ohsugi, T.] Hiroshima Univ, Hiroshima Astrophys Sci Ctr, Higashihiroshima, Hiroshima 7398526, Japan.
[Moiseev, A. A.; Perkins, J. S.] CRESST, Greenbelt, MD 20771 USA.
[Okumura, A.; Tajima, H.] Nagoya Univ, Solar Terr Environm Lab, Nagoya, Aichi 4648601, Japan.
[Ormes, J. F.] Univ Denver, Dept Phys & Astron, Denver, CO 80208 USA.
[Paneque, D.] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany.
[Perkins, J. S.] Univ Maryland, Dept Phys, Baltimore, MD 21250 USA.
[Perkins, J. S.] Univ Maryland, Ctr Space Sci & Technol, Baltimore, MD 21250 USA.
[Razzano, M.] Univ Calif Santa Cruz, Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA.
[Razzano, M.] Univ Calif Santa Cruz, Dept Phys, Santa Cruz, CA 95064 USA.
[Razzano, M.] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA.
[Razzaque, S.] Univ Johannesburg, Dept Phys, ZA-2006 Auckland Pk, South Africa.
[Siegal-Gaskins, J.] CALTECH, Pasadena, CA 91125 USA.
[Siskind, E. J.] NYCB Real Time Comp Inc, New York, NY 11560 USA.
[Suson, D. J.] Purdue Univ Calumet, Dept Chem & Phys, Hammond, IN 46323 USA.
[Vianello, G.] CIFS, I-10133 Turin, Italy.
[Vitale, V.] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 I- Roma, Italy.
[Zaharijas, G.] Abdus Salaam Int Ctr Theoret Phys, I-34151 Trieste, Italy.
RP Ackermann, M (reprint author), Deutsch Elektronen Synchrotron DESY, D-15738 Zeuthen, Germany.
EM albert.143@osu.edu; elliott@slac.stanford.edu;
echarles@slac.stanford.edu; winer@mps.ohio-state.edu
RI Orlando, E/R-5594-2016; Rando, Riccardo/M-7179-2013; Reimer,
Olaf/A-3117-2013; Morselli, Aldo/G-6769-2011; Nemmen,
Rodrigo/O-6841-2014; Funk, Stefan/B-7629-2015; Gomez-Vargas,
German/C-7138-2015; Loparco, Francesco/O-8847-2015; Mazziotta, Mario
/O-8867-2015; Gargano, Fabio/O-8934-2015; giglietto, nicola/I-8951-2012;
Moskalenko, Igor/A-1301-2007; Sgro, Carmelo/K-3395-2016; Bissaldi,
Elisabetta/K-7911-2016; Di Venere, Leonardo/C-7619-2017;
OI Reimer, Olaf/0000-0001-6953-1385; Morselli, Aldo/0000-0002-7704-9553;
Funk, Stefan/0000-0002-2012-0080; Loparco,
Francesco/0000-0002-1173-5673; Mazziotta, Mario /0000-0001-9325-4672;
Gargano, Fabio/0000-0002-5055-6395; giglietto,
nicola/0000-0002-9021-2888; Moskalenko, Igor/0000-0001-6141-458X;
Bissaldi, Elisabetta/0000-0001-9935-8106; Giroletti,
Marcello/0000-0002-8657-8852; Gasparrini, Dario/0000-0002-5064-9495;
Baldini, Luca/0000-0002-9785-7726; Di Venere,
Leonardo/0000-0003-0703-824X; Inoue, Yoshiyuki/0000-0002-7272-1136; De
Angelis, Alessandro/0000-0002-3288-2517; Caraveo,
Patrizia/0000-0003-2478-8018; Sgro', Carmelo/0000-0001-5676-6214;
Zaharijas, Gabrijela/0000-0001-8484-7791; SPINELLI,
Paolo/0000-0001-6688-8864; Rando, Riccardo/0000-0001-6992-818X; Hill,
Adam/0000-0003-3470-4834; Bastieri, Denis/0000-0002-6954-8862; Omodei,
Nicola/0000-0002-5448-7577; Pesce-Rollins, Melissa/0000-0003-1790-8018;
orienti, monica/0000-0003-4470-7094
FU K. A. Wallenberg Foundation; Marie Curie IOF [275861]
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. We would
also like to thank Christoph Weniger for providing the limit values used
in Fig. 10. J. Conrad is a Royal Swedish Academy of Sciences Research
Fellow, funded by a grant from the K. A. Wallenberg Foundation. A. B.
Hill was funded by a Marie Curie IOF, FP7/2007-2013 under Grant No.
275861. E. Troja is a NASA Postdoctoral Program Fellow.
NR 44
TC 109
Z9 109
U1 4
U2 13
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 2470-0010
EI 2470-0029
J9 PHYS REV D
JI Phys. Rev. D
PD OCT 22
PY 2013
VL 88
IS 8
AR 082002
DI 10.1103/PhysRevD.88.082002
PG 34
WC Astronomy & Astrophysics; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 240OU
UT WOS:000326107300001
ER
PT J
AU Alnemrat, S
Brett, GT
Hooper, JP
AF Alnemrat, Sufian
Brett, Gary T.
Hooper, Joseph P.
TI Adsorption of 2,4,6-trinitrotoluene on the ZnO
(2(1)over-bar(1)over-bar0) surface: A density functional theory study of
the detection mechanism of ZnO nanowire chemiresistors
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID ZINC-OXIDE NANOSTRUCTURES; SIMULATION; NO2
AB We report first-principles calculations of the adsorption of 2,4,6-trinitrotoluene (TNT), a prototypical nitroaromatic explosive, on the ZnO (2 (1) over bar(1) over bar0) surface. This surface is common among ZnO chemiresistors being considered for trace explosive detection. Recent work has achieved 60 ppb detection of TNT using a ZnO nanowire array, but the physical mechanism of sensing is unclear. Our results indicate that TNT strongly chemisorbs via interactions between the oxygen on the nitro groups and surface zinc, creating surface states within the gap. We present a theoretical estimate showing the strong effect of these surface states on the depletion layer of ZnO nanowires.
C1 [Alnemrat, Sufian; Brett, Gary T.; Hooper, Joseph P.] Naval Postgrad Sch, Dept Phys, Monterey, CA 93943 USA.
RP Hooper, JP (reprint author), Naval 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 The authors would like to thank Nancy Haegel for valuable input on the
manuscript. 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 Mike Schlesinger. This research
was performed while one of the authors (S.A.) held a National Research
Council Research Associateship Award at Naval Postgraduate School.
NR 17
TC 5
Z9 5
U1 2
U2 26
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 OCT 21
PY 2013
VL 103
IS 17
AR UNSP 173102
DI 10.1063/1.4825365
PG 4
WC Physics, Applied
SC Physics
GA 245HT
UT WOS:000326455100057
ER
PT J
AU Hartley, DJ
Pedicini, EE
Janssens, RVF
Riedinger, LL
Riley, MA
Wang, X
Miller, S
Ayangeakaa, AD
Carpenter, MP
Carroll, JJ
Cavey, J
Chiara, CJ
Chowdhury, P
Garg, U
Hota, SS
Jackson, EG
Kondev, FG
Lauritsen, T
Litz, M
Ma, WC
Matta, J
Paul, ES
Simpson, J
Vanhoy, JR
Zhu, S
AF Hartley, D. J.
Pedicini, E. E.
Janssens, R. V. F.
Riedinger, L. L.
Riley, M. A.
Wang, X.
Miller, S.
Ayangeakaa, A. D.
Carpenter, M. P.
Carroll, J. J.
Cavey, J.
Chiara, C. J.
Chowdhury, P.
Garg, U.
Hota, S. S.
Jackson, E. G.
Kondev, F. G.
Lauritsen, T.
Litz, M.
Ma, W. C.
Matta, J.
Paul, E. S.
Simpson, J.
Vanhoy, J. R.
Zhu, S.
TI Possible deformation evolution in the pi i(13/2) structure of Re-171
SO PHYSICAL REVIEW C
LA English
DT Article
ID NUCLEAR-DATA SHEETS; COINCIDENCE DATA; WOBBLING MODE; CONFIGURATION;
EXCITATIONS; LU-167; PHONON; BAND
AB The phenomenon of wobbling can only occur for a nuclear shape with stable triaxial deformation. To date, only a few examples of this exotic collective mode have been observed in lutetium and tantalum isotopes. A search for a wobbling sequence was performed in Re-171 to determine if this feature can be observed in Z > 73 nuclei. No evidence was found for wobbling; however, an interaction between the pi i(13/2) sequence and another positive-parity band may give an indication on why wobbling may not occur in this nucleus. The level scheme for Re-171 was significantly extended and interpretations for the decay sequences are proposed within the context of the cranked shell model.
C1 [Hartley, D. J.; Pedicini, E. E.; Cavey, J.; Vanhoy, J. R.] US Naval Acad, Dept Phys, Annapolis, MD 21402 USA.
[Janssens, R. V. F.; Carpenter, M. P.; Chiara, C. J.; Lauritsen, T.; Zhu, S.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
[Riedinger, L. L.] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
[Riley, M. A.; Wang, X.; Miller, S.] Florida State Univ, Dept Phys, Tallahassee, FL 32306 USA.
[Ayangeakaa, A. D.; Garg, U.; Matta, J.] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA.
[Carroll, J. J.; Litz, M.] Army Res Lab, Adelphi, MD 20783 USA.
[Chiara, C. J.] Univ Maryland, Dept Chem & Biochem, College Pk, MD 20742 USA.
[Chiara, C. J.; Kondev, F. G.] Argonne Natl Lab, Nucl Engn Div, Argonne, IL 60439 USA.
[Chowdhury, P.; Hota, S. S.; Jackson, E. G.] Univ Massachusetts, Dept Phys, Lowell, MA 01854 USA.
[Ma, W. C.] Mississippi State Univ, Dept Phys, Mississippi State, MS 39762 USA.
[Paul, E. S.] Univ Liverpool, Oliver Lodge Lab, Liverpool L69 7ZE, Merseyside, England.
[Simpson, J.] STFC Daresbury Lab, Warrington WA4 4AD, Cheshire, England.
RP Hartley, DJ (reprint author), US Naval Acad, Dept Phys, Annapolis, MD 21402 USA.
RI Carpenter, Michael/E-4287-2015; Ayangeakaa, Akaa/F-3683-2015
OI Carpenter, Michael/0000-0002-3237-5734; Ayangeakaa,
Akaa/0000-0003-1679-3175
FU National Science Foundation [PHY-1203100, PHY-0754674, PHY-1068192];
U.S. Department of Energy, Office of Nuclear Physics [DE-AC02-06CH11357,
DE-FG02-94ER40848, DE-FG02-96ER40983, DE-FG02-94ER40834,
DE-FG02-95ER40939]; United Kingdom Science and Technology Facilities
Council
FX The authors thank the ANL operations staff at Gammasphere and gratefully
acknowledge the efforts of J. P. Greene for target preparation. We thank
D. C. Radford and H. Q. Jin for their software support. This work was
funded by the National Science Foundation under Grants No. PHY-1203100
(USNA), No. PHY-0754674 (FSU), and No. PHY-1068192 (ND), the U.S.
Department of Energy, Office of Nuclear Physics, under Contracts No.
DE-AC02-06CH11357 (ANL), No. DE-FG02-94ER40848 (UML), No.
DE-FG02-96ER40983 (UT), No. DE-FG02-94ER40834 (UMCP), and No.
DE-FG02-95ER40939 (MSU), as well as the United Kingdom Science and
Technology Facilities Council.
NR 36
TC 1
Z9 1
U1 2
U2 13
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0556-2813
EI 1089-490X
J9 PHYS REV C
JI Phys. Rev. C
PD OCT 21
PY 2013
VL 88
IS 4
AR 044323
DI 10.1103/PhysRevC.88.044323
PG 15
WC Physics, Nuclear
SC Physics
GA 240KY
UT WOS:000326096000003
ER
PT J
AU Ko, YK
Tylka, AJ
Ng, CK
Wang, YM
Dietrich, WF
AF Ko, Yuan-Kuen
Tylka, Allan J.
Ng, Chee K.
Wang, Yi-Ming
Dietrich, William F.
TI SOURCE REGIONS OF THE INTERPLANETARY MAGNETIC FIELD AND VARIABILITY IN
HEAVY-ION ELEMENTAL COMPOSITION IN GRADUAL SOLAR ENERGETIC PARTICLE
EVENTS
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE acceleration of particles; shock waves; solar wind; Sun: abundances;
Sun: coronal mass ejections (CMEs); Sun: flares; Sun: heliosphere; Sun:
particle emission
ID CORONAL MASS EJECTIONS; ADVANCED COMPOSITION EXPLORER; SOURCE SURFACE
MODEL; FAST-WIND REGIONS; DRIVEN SHOCKS; ISOTOPE SPECTROMETER; CYCLE 23;
SPECTRAL PROPERTIES; TEMPORAL EVOLUTION; HE-3-RICH EVENTS
AB Gradual solar energetic particle (SEP) events are those in which ions are accelerated to their observed energies by interactions with a shock driven by a fast coronal mass ejection (CME). Previous studies have shown that much of the observed event-to-event variability can be understood in terms of shock speed and evolution in the shock-normal angle. However, an equally important factor, particularly for the elemental composition, is the origin of the suprathermal seed particles upon which the shock acts. To tackle this issue, we (1) use observed solar-wind speed, magnetograms, and the potential-field source-surface model to map the Sun-L1 interplanetary magnetic field (IMF) line back to its source region on the Sun at the time of the SEP observations and (2) then look for a correlation between SEP composition (as measured by Wind and Advanced Composition Explorer at similar to 2-30 MeV nucleon(-1)) and characteristics of the identified IMF source regions. The study is based on 24 SEP events, identified as a statistically significant increase in similar to 20 MeV protons and occurring in 1998 and 2003-2006, when the rate of newly emergent solar magnetic flux and CMEs was lower than in solar-maximum years, and the field-line tracing is therefore more likely to be successful. We find that the gradual SEP Fe/O is correlated with the field strength at the IMF source, with the largest enhancements occurring when the footpoint field is strong due to the nearby presence of an active region (AR). In these cases, other elemental ratios show a strong charge-to-mass (q/M) ordering (at least on average), similar to that found in impulsive events. Such results lead us to suggest that magnetic reconnection in footpoint regions near ARs bias the heavy-ion composition of suprathermal seed ions by processes qualitatively similar to those that produce larger heavy-ion enhancements in impulsive SEP events. To address potential technical concerns about our analysis, we also discuss efforts to exclude impulsive SEP events from our event sample.
C1 [Ko, Yuan-Kuen; Wang, Yi-Ming] Naval Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Tylka, Allan J.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Ng, Chee K.] George Mason Univ, Coll Sci, Fairfax, VA 22030 USA.
[Dietrich, William F.] Praxis Inc, Alexandria, VA 22303 USA.
RP Ko, YK (reprint author), Naval Res Lab, Div Space Sci, Code 7680, Washington, DC 20375 USA.
EM yko@ssd5.nrl.navy.mil
RI Tylka, Allan/G-9592-2014
NR 111
TC 5
Z9 5
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 OCT 20
PY 2013
VL 776
IS 2
AR 92
DI 10.1088/0004-637X/776/2/92
PG 30
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 255CF
UT WOS:000327216100029
ER
PT J
AU Burke, AA
Carreiro, LG
Izzo, JR
AF Burke, A. Alan
Carreiro, Louis G.
Izzo, John R., Jr.
TI Pressurized testing of a planar solid oxide fuel cell stack
SO INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
LA English
DT Article
DE Pressurized SOFC; SOFC efficiency; UUV energy storage; Stack performance
ID UNDERSEA VEHICLES; HYBRID SYSTEM; SOFC STACK; DESIGN; MODEL
AB Gas leakage often occurs in planar solid oxide fuel cell (SOFC) stacks due to small pressure differentials (2-3 psi) between the process flows and external pressure. This gas leakage can initiate localized burning and degradation mechanisms, which result in lower stack efficiency, reduced stack lifetime, and higher overall cost. A more durable planar SOFC design that can accommodate higher operating pressure would contribute to higher efficiency and more versatile SOFC system integrations. This manuscript examines the performance of a 60-cell, planar SOFC stack up to 45 psia. SOFC stacks can be successfully operated at elevated pressure by containment in a pressure vessel and equalization of the vessel pressure to the process pressure (i.e. anode and cathode gas flows). SOFC stacks display pressure-dependent voltage in accordance with theory, suggesting that an absolute efficiency gain of 2-3% by operating at 45 psia versus ambient pressure (15 psia) is achievable. Copyright (C) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
C1 [Burke, A. Alan; Carreiro, Louis G.; Izzo, John R., Jr.] Naval Undersea Warfare Ctr, Div Newport, Newport, RI 02841 USA.
RP Carreiro, LG (reprint author), Naval Undersea Warfare Ctr, Div Newport, 1176 Howell St, Newport, RI 02841 USA.
EM Louis.Carreiro@navy.mil
FU Office of Naval Research; U.S. Department of Energy / SECA Program;
Office of the Secretary of Defense - SBIR [N66604-06-C-4643]
FX The Office of Naval Research and The U.S. Department of Energy / SECA
Program are acknowledged for funding this investigation into pressurized
SOFC's. The SOFC stack was supplied via an Office of the Secretary of
Defense-sponsored SBIR Contract, No. N66604-06-C-4643.
NR 17
TC 0
Z9 0
U1 4
U2 17
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0360-3199
EI 1879-3487
J9 INT J HYDROGEN ENERG
JI Int. J. Hydrog. Energy
PD OCT 17
PY 2013
VL 38
IS 31
BP 13774
EP 13780
DI 10.1016/j.ijhydene.2013.08.058
PG 7
WC Chemistry, Physical; Electrochemistry; Energy & Fuels
SC Chemistry; Electrochemistry; Energy & Fuels
GA 252JC
UT WOS:000327000000033
ER
PT J
AU Fragiadakis, D
Roland, CM
AF Fragiadakis, D.
Roland, C. M.
TI Characteristics of the Johari-Goldstein process in rigid asymmetric
molecules
SO PHYSICAL REVIEW E
LA English
DT Article
ID NEUTRON SPIN-ECHO; BETA-RELAXATION; SECONDARY RELAXATIONS;
GLASS-FORMERS; D-SORBITOL; POLY(METHYL METHACRYLATE); SUPERCOOLED STATE;
COUPLING MODEL; DYNAMICS; ALPHA
AB Molecular dynamics simulations were carried out on a Lennard-Jones binary mixture of rigid (fixed bond length) diatomic molecules. The translational and rotational correlation functions, and the corresponding susceptibilities, exhibit two relaxation processes: the slow structural relaxation (a dynamics) and a higher frequency secondary relaxation. The latter is a Johari-Goldstein (JG) process, by its definition of involving all parts of the molecule. It shows several properties characteristic of the JG relaxation: (1) merging with the a relaxation at high temperature; (2) a change in temperature dependence of its relaxation strength on vitrification; (3) a separation in frequency from the a peak that correlates with the breadth of the a dispersion; and (4) sensitivity to volume, pressure, and physical aging. These properties can be used to determine whether a secondary relaxation in a real material is an authentic JG process, rather than more trivial motion involving intramolecular degrees of freedom. The latter has no connection to the glass transition, whereas the JG relaxation is closely related to structural relaxation, and thus can provide new insights into the phenomenon.
C1 [Fragiadakis, D.; Roland, C. M.] Naval Res Lab, Div Chem, Washington, DC 20375 USA.
RP Fragiadakis, D (reprint author), Naval Res Lab, Div Chem, Code 6120, Washington, DC 20375 USA.
FU Office of Naval Research
FX This work was supported by the Office of Naval Research.
NR 45
TC 9
Z9 9
U1 4
U2 13
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1539-3755
EI 1550-2376
J9 PHYS REV E
JI Phys. Rev. E
PD OCT 17
PY 2013
VL 88
IS 4
AR 042307
DI 10.1103/PhysRevE.88.042307
PG 8
WC Physics, Fluids & Plasmas; Physics, Mathematical
SC Physics
GA 240QX
UT WOS:000326113200003
PM 24229172
ER
PT J
AU Nedoluha, GE
Gomez, RM
Allen, DR
Lambert, A
Boone, C
Stiller, G
AF Nedoluha, Gerald E.
Gomez, R. Michael
Allen, Doug R.
Lambert, Alyn
Boone, Chris
Stiller, Gabriele
TI Variations in middle atmospheric water vapor from 2004 to 2013
SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
LA English
DT Article
ID STRATOSPHERIC WATER; TROPICAL TROPOPAUSE; TEMPERATURE; VALIDATION;
CIRCULATION; MESOSPHERE; HUMIDITY; MIPAS; SPECTROMETER; PROFILES
C1 [Nedoluha, Gerald E.; Gomez, R. Michael] Naval Res Lab, Washington, DC 20375 USA.
[Allen, Doug R.; Lambert, Alyn] CALTECH, Jet Prop Lab, Pasadena, CA USA.
[Boone, Chris] Univ Waterloo, Dept Chem, Waterloo, ON N2L 3G1, Canada.
[Stiller, Gabriele] Karlsruhe Inst Technol, Inst Meteorol & Climate Res, D-76021 Karlsruhe, Germany.
RP Nedoluha, GE (reprint author), Naval Res Lab, Washington, DC 20375 USA.
EM nedoluha@nrl.navy.mil
RI Stiller, Gabriele/A-7340-2013
OI Stiller, Gabriele/0000-0003-2883-6873
FU National Aeronautics and Space Administration; Canadian Space Agency;
NASA under the Upper Atmosphere Research Program; Naval Research
Laboratory
FX We wish to thank S. McDermid, D. Walsh, and T. LeBlanc at Table Mountain
and Mauna Loa for their technical assistance. Work at the Jet Propulsion
Laboratory, California Institute of Technology, was carried out under a
contract with the National Aeronautics and Space Administration. The
provision of MIPAS level-1b data by ESA is gratefully acknowledged.
Funding for the Atmospheric Chemistry Experiment comes primarily from
the Canadian Space Agency. This project was funded by NASA under the
Upper Atmosphere Research Program and by the Naval Research Laboratory.
NR 38
TC 6
Z9 6
U1 0
U2 8
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 OCT 16
PY 2013
VL 118
IS 19
BP 11285
EP 11293
DI 10.1002/jgrd.50834
PG 9
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 297PF
UT WOS:000330266700043
ER
PT J
AU Ewing, KJ
Gibson, D
Sanghera, J
Miklos, F
AF Ewing, K. J.
Gibson, D.
Sanghera, J.
Miklos, F.
TI Sampler for Collection and Analysis of Low Vapor Pressure Chemical
(LVPC) Particulates/Aerosols
SO ANALYTICAL CHEMISTRY
LA English
DT Article
ID MASS-SPECTROMETRY; WARFARE AGENTS; AEROSOLS; AIR
AB Detection of low vapor pressure chemicals (LVPCs) such as pesticides and other toxic/hazardous materials on various environmental surfaces as well as LVPC aerosols is a significant challenge for current vapor phase detectors. We describe a novel sampling device which utilizes stainless steel screens coated with a sticky polydimethylsiloxane coating for collecting LVPCs aerosolized off of a surface. Results are presented for the collection and detection of a pesticide simulant, dimethyl methylphosphonate sorbed onto silica gel (DMMP/SG), using direct analysis in real time-cylindrical ion trap mass spectrometry (DART-CITMS).
C1 [Ewing, K. J.; Gibson, D.; Sanghera, J.] Naval Res Lab, Washington, DC USA.
[Miklos, F.] Sotera Def Solut, Herndon, VA USA.
RP Ewing, KJ (reprint author), Naval Res Lab, Code 5620, Washington, DC USA.
EM ken.ewing@nrl.navy.mil
FU Joint Program Executive Office for Chemical and Biological Defense/Joint
Project Manager for Nuclear, Biological, and Chemical Contamination
Avoidance; DHS ST [HSHQDC-11-X-00568]
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 and Dr. Angela Ervin,
DHS S&T, Contract No. HSHQDC-11-X-00568 for supporting this work.
NR 21
TC 4
Z9 4
U1 0
U2 57
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 OCT 15
PY 2013
VL 85
IS 20
BP 9508
EP 9513
DI 10.1021/ac401100r
PG 6
WC Chemistry, Analytical
SC Chemistry
GA 240VU
UT WOS:000326126600014
PM 24053780
ER
PT J
AU Zabetakis, D
Anderson, GP
Bayya, N
Goldman, ER
AF Zabetakis, Dan
Anderson, George P.
Bayya, Nikhil
Goldman, Ellen R.
TI Contributions of the Complementarity Determining Regions to the Thermal
Stability of a Single-Domain Antibody
SO PLOS ONE
LA English
DT Article
ID HEAVY-CHAIN ANTIBODIES; AFFINITY TRANSFER; ANTIGEN RECEPTOR;
ENTEROTOXIN-B; FRAGMENTS; IDENTIFICATION; FRAMEWORK; SCAFFOLD; PROTEIN;
SHARKS
AB Single domain antibodies (sdAbs) are the recombinantly-expressed variable domain from camelid (or shark) heavy chain only antibodies and provide rugged recognition elements. Many sdAbs possess excellent affinity and specificity; most refold and are able to bind antigen after thermal denaturation. The sdAb A3, specific for the toxin Staphylococcal enterotoxin B (SEB), shows both sub-nanomolar affinity for its cognate antigen (0.14 nM) and an unusually high melting point of 85 degrees C. Understanding the source of sdAb A3' s high melting temperature could provide a route for engineering improved melting temperatures into other sdAbs. The goal of this work was to determine how much of sdAb A3' s stability is derived from its complementarity determining regions (CDRs) versus its framework. Towards answering this question we constructed a series of CDR swap mutants in which the CDRs from unrelated sdAbs were integrated into A3' s framework and where A3' s CDRs were integrated into the framework of the other sdAbs. All three CDRs from A3 were moved to the frameworks of sdAb D1 (a ricin binder that melts at 50 C) and the anti-ricin sdAb C8 (melting point of 60 degrees C). Similarly, the CDRs from sdAb D1 and sdAb C8 were moved to the sdAb A3 framework. In addition individual CDRs of sdAb A3 and sdAb D1 were swapped. Melting temperature and binding ability were assessed for each of the CDR-exchange mutants. This work showed that CDR2 plays a critical role in sdAb A3' s binding and stability. Overall, results from the CDR swaps indicate CDR interactions play a major role in the protein stability.
C1 [Zabetakis, Dan; Anderson, George P.; Goldman, Ellen R.] US Naval Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC USA.
[Bayya, Nikhil] Amer Soc Engn Educ, Sci & Engn Apprenticeship Program, Washington, DC USA.
RP Goldman, ER (reprint author), US Naval Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC USA.
EM ellen.goldman@nrl.navy.mil
RI Anderson, George/D-2461-2011
OI Anderson, George/0000-0001-7545-9893
FU Defense Threat Reduction Agency (DTRA) [CBCALL12-LS6-2-0036]; Naval
Research Laboratory base 6.1 funds
FX This work was supported by Defense Threat Reduction Agency (DTRA)
project number CBCALL12-LS6-2-0036, and Naval Research Laboratory base
6.1 funds. The funders had no role in study design, data collection and
analysis, decision to publish, or preparation of the manuscript.
NR 24
TC 10
Z9 10
U1 0
U2 15
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 OCT 15
PY 2013
VL 8
IS 10
AR e77678
DI 10.1371/journal.pone.0077678
PG 7
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 237TP
UT WOS:000325894100094
PM 24143255
ER
PT J
AU Lindsay, L
Broido, DA
Reinecke, TL
AF Lindsay, L.
Broido, D. A.
Reinecke, T. L.
TI Phonon-isotope scattering and thermal conductivity in materials with a
large isotope effect: A first-principles study
SO PHYSICAL REVIEW B
LA English
DT Article
ID LATTICE-DYNAMICS; SINGLE-CRYSTALS; DIAMOND; CHALCOGENIDES; GERMANIUM;
GAN; GE
AB The interplay between phonon-isotope and phonon-phonon scattering in determining lattice thermal conductivities in semiconductors and insulators is examined using an ab initio Boltzmann transport equation approach. We identify materials with large enhancements to their thermal conductivities with isotopic purification, known as the isotope effect, and we focus in particular on results for beryllium-VI compounds and cubic germanium carbide. We find that germanium carbide and beryllium selenide have very large room temperature isotope effects of 450%, far larger than in any other material. Thus, isotopic purification in these materials gives surprisingly high intrinsic room temperature thermal conductivities, over 1500 Wm(-1) K-1 for germanium carbide and over 600 Wm(-1) K-1 for beryllium selenide, well above those of the best metals. In compound semiconductors, a large mass ratio of the constituent atoms and large isotope mixture for the heavier atom gives enhanced isotope scattering. A frequency gap between acoustic and optic phonons (also due to a large mass ratio) and bunching of the acoustic phonon branches give weak anharmonic scattering. Combined, weak anharmonic phonon scattering and strong isotope scattering give a large isotope effect in the materials examined here. The physical insights discussed in this work will help guide the efficient manipulation of thermal transport properties of compound semiconductors through isotopic modification.
C1 [Lindsay, L.; Reinecke, T. L.] US Naval Res Lab, Washington, DC 20375 USA.
[Broido, D. A.] Boston Coll, Dept Phys, Chestnut Hill, MA 02467 USA.
RP Lindsay, L (reprint author), US Naval Res Lab, Washington, DC 20375 USA.
RI Lindsay, Lucas/C-9221-2012
OI Lindsay, Lucas/0000-0001-9645-7993
FU ONR [N00014-13-1-0234]; DARPA; NRC/NRL Research Associateship Program;
National Science Foundation [1066634]
FX This work was supported in part by ONR and DARPA (L. L. and T. L. R.).
L. L. acknowledges support from the NRC/NRL Research Associateship
Program. D. A. B. acknowledges support from the National Science
Foundation under Grant No. 1066634 and from ONR under Grant No.
N00014-13-1-0234.
NR 37
TC 22
Z9 22
U1 2
U2 33
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 OCT 15
PY 2013
VL 88
IS 14
AR 144306
DI 10.1103/PhysRevB.88.144306
PG 9
WC Physics, Condensed Matter
SC Physics
GA 236TG
UT WOS:000325821600004
ER
PT J
AU Solenov, D
Economou, SE
Reinecke, TL
AF Solenov, Dmitry
Economou, Sophia E.
Reinecke, Thomas L.
TI Two-qubit quantum gates for defect qubits in diamond and similar systems
SO PHYSICAL REVIEW B
LA English
DT Article
ID SILICON-CARBIDE; COLOR-CENTER; STATE; ENTANGLEMENT; DECOHERENCE;
DIVACANCY; SPINS
AB We propose a fast, scalable all-optical design for arbitrary two-qubit operations for defect qubits in diamond (nitrogen-vacancy centers) and in silicon carbide, which are promising candidates for room temperature quantum computing. The interaction between qubits is carried out by microcavity photons. The approach uses constructive interference from higher energy excited states activated by optical control. In this approach the cavity mode remains off-resonance with the directly accessible optical transitions used for initialization and readout. All quantum operations are controlled by near-resonant narrow-bandwidth optical pulses. We perform full quantum numerical modeling of the proposed gates and show that high-fidelity operations can be obtained with realistic parameters.
C1 [Solenov, Dmitry] Natl Acad, Natl Res Council, Washington, DC 20001 USA.
[Economou, Sophia E.; Reinecke, Thomas L.] Naval Res Lab, Washington, DC 20375 USA.
RP Solenov, D (reprint author), Naval Res Lab, 4555 Overlook Ave, Washington, DC 20375 USA.
EM d.solenov@gmail.com
FU ONR; NRC/NRL; LPS/NSA
FX D.S. gratefully acknowledges helpful discussion with S.G. Carter. This
work was supported in part by the ONR, NRC/NRL, and by LPS/NSA. Computer
resources were provided by the DOD HPCMP.
NR 37
TC 2
Z9 2
U1 0
U2 26
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
EI 1550-235X
J9 PHYS REV B
JI Phys. Rev. B
PD OCT 15
PY 2013
VL 88
IS 16
AR 161403
DI 10.1103/PhysRevB.88.161403
PG 6
WC Physics, Condensed Matter
SC Physics
GA 236TV
UT WOS:000325823200002
ER
PT J
AU Khemlani, SS
Mackiewicz, R
Bucciarelli, M
Johnson-Laird, PN
AF Khemlani, Sangeet Suresh
Mackiewicz, Robert
Bucciarelli, Monica
Johnson-Laird, Philip N.
TI Kinematic mental simulations in abduction and deduction
SO PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF
AMERICA
LA English
DT Article
DE cognitive processes; informal programming; problem solving; reasoning
ID NON-PROGRAMMERS; MODELS; REPRESENTATION; PSYCHOLOGY; LANGUAGE; OBJECTS
AB We present a theory, and its computer implementation, of how mental simulations underlie the abductions of informal algorithms and deductions from these algorithms. Three experiments tested the theory's predictions, using an environment of a single railway track and a siding. This environment is akin to a universal Turing machine, but it is simple enough for nonprogrammers to use. Participants solved problems that required use of the siding to rearrange the order of cars in a train (experiment 1). Participants abduced and described in their own words algorithms that solved such problems for trains of any length, and, as the use of simulation predicts, they favored "while-loops" over "for-loops" in their descriptions (experiment 2). Given descriptions of loops of procedures, participants deduced the consequences for given trains of six cars, doing so without access to the railway environment (experiment 3). As the theory predicts, difficulty in rearranging trains depends on the numbers of moves and cars to be moved, whereas in formulating an algorithm and deducing its consequences, it depends on the Kolmogorov complexity of the algorithm. Overall, the results corroborated the use of a kinematic mental model in creating and testing informal algorithms and showed that individuals differ reliably in the ability to carry out these tasks.
C1 [Khemlani, Sangeet Suresh] USN, Res Lab, Navy Ctr Appl Res Artificial Intelligence, Washington, DC 20375 USA.
[Mackiewicz, Robert] Univ Social Sci & Humanities, Dept Psychol, PL-03815 Warsaw, Poland.
[Bucciarelli, Monica] Univ Turin, Ctr Sci Cognit, I-10123 Turin, Italy.
[Bucciarelli, Monica] Univ Turin, Dipartimento Psicol, I-10123 Turin, Italy.
[Johnson-Laird, Philip N.] NYU, Dept Psychol, New York, NY 10003 USA.
[Johnson-Laird, Philip N.] Princeton Univ, Dept Psychol, Princeton, NJ 08540 USA.
RP Khemlani, SS (reprint author), USN, Res Lab, Navy Ctr Appl Res Artificial Intelligence, Washington, DC 20375 USA.
EM skhemlani@gmail.com; phil@princeton.edu
FU National Science Foundation; Polish Ministry of Science and Higher
Education Grant [2836/01/E/560/S/2012]; Italian Ministry of Education
University and Research Grant [2010RP5RNM]; National Science Foundation
[SES 0844851]
FX We thank Ruth Byrne, Sam Glucksberg, Adele Goldberg, Geoffrey Goodwin,
Louis Lee, David Lobina, Max Lotstein, Paula Rubio, and Carlos
Santamaria for advice. This work was supported by a National Science
Foundation Graduate Research fellowship (to S. S. K.), Polish Ministry
of Science and Higher Education Grant 2836/01/E/560/S/2012 (to R. M.),
by Italian Ministry of Education University and Research Grant
2010RP5RNM (to M. B.) to study problem solving and decision making, and
by National Science Foundation Grant SES 0844851 (to P.N.J.-L.) to study
deductive and probabilistic reasoning.
NR 50
TC 7
Z9 7
U1 1
U2 9
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 OCT 15
PY 2013
VL 110
IS 42
BP 16766
EP 16771
DI 10.1073/pnas.1316275110
PG 6
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 234HT
UT WOS:000325634200027
PM 24082090
ER
PT J
AU Gattass, RR
Shaw, LB
Sanghera, JS
AF Gattass, Rafael R.
Shaw, Leslie Brandon
Sanghera, Jasbinder Singh
TI Broadband Watt-Level Mid-Infrared Fiber-Coupled Variable Optical
Attenuator
SO IEEE PHOTONICS TECHNOLOGY LETTERS
LA English
DT Article
DE Chalcogenide fiber; infrared fiber optics; mid-infrared (MWIR); optical
attenuator; optical fiber devices; optical modulator
AB Direct intensity modulation of laser systems in the mid-infrared is marred by instabilities in power output, emission wavelength, and mode profile. In particular, emission characteristics of current implementations of quantum cascade lasers are especially susceptible to modulations in the driving current. We present a broadband mid-infrared variable optical attenuator with large dynamic range and sub-millisecond response time. The modulator has demonstrated 52 dB dynamic range (limited by the detector noise) and >1 kHz frequency response, and has been tested at various wavelength covering 3.5-4.8 mu m. The system is composed of a piezoelectric controlled tilt-mirror that images the laser beam into a mid-infrared transmitting optical fiber. The use of broadband anti-reflection optics in the system maintains a high throughput of >90%. Power handling of the system has been confirmed up to 4 W (limited by the laser output power).
C1 [Gattass, Rafael R.; Shaw, Leslie Brandon; Sanghera, Jasbinder Singh] USN, Res Lab, Washington, DC 20375 USA.
RP Gattass, RR (reprint author), USN, Res Lab, Washington, DC 20375 USA.
EM rafael.gattass@nrl.navy.mil; brandon.shaw@nrl.navy.mil;
jas.sanghera@nrl.navy.mil
NR 8
TC 2
Z9 2
U1 0
U2 11
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1041-1135
J9 IEEE PHOTONIC TECH L
JI IEEE Photonics Technol. Lett.
PD OCT 15
PY 2013
VL 25
IS 20
BP 2007
EP 2009
DI 10.1109/LPT.2013.2280885
PG 3
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA 228GZ
UT WOS:000325175300006
ER
PT J
AU Viner, KC
Epifanio, CC
Doyle, JD
AF Viner, Kevin C.
Epifanio, Craig C.
Doyle, James D.
TI A steady-state solver and stability calculator for nonlinear internal
wave flows
SO JOURNAL OF COMPUTATIONAL PHYSICS
LA English
DT Article
DE Internal waves; Gravity waves; Newton's method; Resonant triad; Mountain
waves; Stability analysis
ID GRAVITY-WAVE; STRATIFIED FLOW; INSTABILITY; BREAKING; TURBULENCE; MODELS
AB A steady solver and stability calculator is presented for the problem of nonlinear internal gravity waves forced by topography. Steady-state solutions are obtained using Newton's method, as applied to a finite-difference discretization in terrain-following coordinates. The iteration is initialized using a boundary-inflation scheme, in which the nonlinearity of the flow is gradually increased over the first few Newton steps. The resulting method is shown to be robust over the full range of nonhydrostatic and rotating parameter space. Examples are given for both nonhydrostatic and rotating flows, as well as flows with realistic upstream shear and static stability profiles. With a modest extension, the solver also allows for a linear stability analysis of the steady-state wave fields. Unstable modes are computed using a shifted-inverse method, combined with a parameter-space search over a set of realistic target values. An example is given showing resonant instability in a nonhydrostatic mountain wave. (C) 2013 Elsevier Inc. All rights reserved.
C1 [Viner, Kevin C.; Doyle, James D.] Marine Meteorol Div, Naval Res Lab, Monterey, CA 93943 USA.
[Epifanio, Craig C.] Texas A&M Univ, Dept Atmospher Sci, College Stn, TX 77843 USA.
RP Epifanio, CC (reprint author), 3150 TAMU, College Stn, TX 77843 USA.
EM kevin.viner@nrlmry.navy.mil; cepi@geos.tamu.edu;
james.doyle@nrlmry.navy.mil
FU NSF [ATM-0242228]; ONR [PE 0601153N]; NRL Jerome and Isabella Karle
Fellowship
FX The authors thank Dave Muraki for graciously providing the Fourier-based
Long's theory code used in Section 4. Part of this work was completed
while the first author was affiliated first with Texas A&M University
and later with the National Research Council. Early work on this project
was supported by NSF grant ATM-0242228. The first and third authors
acknowledge support through ONR PE 0601153N, while the first author also
acknowledges support through the NRL Jerome and Isabella Karle
Fellowship.
NR 18
TC 0
Z9 0
U1 0
U2 5
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0021-9991
J9 J COMPUT PHYS
JI J. Comput. Phys.
PD OCT 15
PY 2013
VL 251
BP 432
EP 444
DI 10.1016/j.jcp.2013.02.007
PG 13
WC Computer Science, Interdisciplinary Applications; Physics, Mathematical
SC Computer Science; Physics
GA 194KU
UT WOS:000322633000023
ER
PT J
AU Varnai, C
Bernstein, N
Mones, L
Csanyi, G
AF Varnai, Csilla
Bernstein, Noam
Mones, Letif
Csanyi, Gabor
TI Tests of an Adaptive QM/MM Calculation on Free Energy Profiles of
Chemical Reactions in Solution
SO JOURNAL OF PHYSICAL CHEMISTRY B
LA English
DT Article
ID MOLECULAR-DYNAMICS SIMULATION; TRANSITION-STATE-THEORY;
AQUEOUS-SOLUTION; SN2 REACTIONS; MULTISCALE SIMULATIONS; REACTION
COORDINATE; CONDENSED PHASES; COMBINED QUANTUM; GAS-PHASE; SOLVATION
AB We present reaction free energy calculations using the adaptive buffered force mixing quantum mechanics/molecular mechanics (bf-QM/MA/I) method.(1) The bf-QM/MM method combines nonadaptive electrostatic embedding QM/MM calculations with extended and reduced QM regions to calculate accurate forces on all atoms, which can be used in free energy calculation methods that require only the forces and not the energy. We calculate the free energy profiles of two reactions in aqueous solution: the nucleophilic substitution reaction of methyl chloride with a chloride anion and the deprotonation reaction of the tyrosine side chain. We validate the bf-QM/MM method against a full QM simulation, and show that it correctly reproduces both geometrical properties and free energy profiles of the QM model, while the electrostatic embedding QM/MM method using a static QM region comprising only the solute is unable to do so. The bf-QM/MM method is not explicitly dependent on the details of the QM and MM methods, so long as it is possible to compute QM forces in a small region and MM forces in the rest of the system, as in a conventional QM/MM calculation. It is simple, with only a few parameters needed to control the QM calculation sizes, and allows (but does not require) a varying and adapting QM region which is necessary for simulating solutions.
C1 [Varnai, Csilla; Mones, Letif; Csanyi, Gabor] Univ Cambridge, Dept Engn, Cambridge CB2 1PZ, England.
[Bernstein, Noam] Naval Res Lab, Ctr Computat Mat Sci, Washington, DC 20375 USA.
RP Varnai, C (reprint author), Univ Warwick, Syst Biol Ctr, Coventry CV4 7AL, W Midlands, England.
EM c.varnai@warwick.ac.uk
FU EU-FP7-NMP [229205 ADGLASS]; Office of Naval Research (ONR) through the
Naval Research Laboratory's Basic Research Program; Office of Naval
Research [N000141010826]
FX G.C., C.V., and L.M. acknowledge support from the EU-FP7-NMP grant
229205 ADGLASS. N.B. acknowledges financial support for this work by the
Office of Naval Research (ONR) through the Naval Research Laboratory's
Basic Research Program, and computer time through the US DOD HPCMPO at
the ERDC and AFRL MSRCs. G.C. acknowledges support from the Office of
Naval Research under award no. N000141010826.
NR 70
TC 15
Z9 15
U1 4
U2 27
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1520-6106
J9 J PHYS CHEM B
JI J. Phys. Chem. B
PD OCT 10
PY 2013
VL 117
IS 40
BP 12202
EP 12211
DI 10.1021/jp405974b
PG 10
WC Chemistry, Physical
SC Chemistry
GA 244DJ
UT WOS:000326367000032
PM 24033146
ER
PT J
AU Veilleux, S
Melendez, M
Sturm, E
Gracia-Carpio, J
Fischer, J
Gonzalez-Alfonso, E
Contursi, A
Lutz, D
Poglitsch, A
Davies, R
Genzel, R
Tacconi, L
de Jong, JA
Sternberg, A
Netzer, H
Hailey-Dunsheath, S
Verma, A
Rupke, DSN
Maiolino, R
Teng, SH
Polisensky, E
AF Veilleux, S.
Melendez, M.
Sturm, E.
Gracia-Carpio, J.
Fischer, J.
Gonzalez-Alfonso, E.
Contursi, A.
Lutz, D.
Poglitsch, A.
Davies, R.
Genzel, R.
Tacconi, L.
de Jong, J. A.
Sternberg, A.
Netzer, H.
Hailey-Dunsheath, S.
Verma, A.
Rupke, D. S. N.
Maiolino, R.
Teng, S. H.
Polisensky, E.
TI FAST MOLECULAR OUTFLOWS IN LUMINOUS GALAXY MERGERS: EVIDENCE FOR QUASAR
FEEDBACK FROM HERSCHEL
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE galaxies: active; galaxies: evolution; ISM: jets and outflows; ISM:
molecules; quasars: general
ID ULTRALUMINOUS INFRARED GALAXIES; STAR-FORMING GALAXIES; SCALE GASEOUS
OUTFLOWS; PALOMAR-GREEN QUASARS; BAND IMAGING SURVEY; II ESI SPECTRA;
GALACTIC WINDS; BLACK-HOLES; DYNAMICAL PROPERTIES; INTERSTELLAR-MEDIUM
AB We report the results from a systematic search for molecular (OH 119 mu m) outflows with Herschel/PACS in a sample of 43 nearby (z < 0.3) galaxy mergers, mostly ultraluminous infrared galaxies (ULIRGs) and QSOs. We find that the character of the OH feature (strength of the absorption relative to the emission) correlates with that of the 9.7 mu m silicate feature, a measure of obscuration in ULIRGs. Unambiguous evidence for molecular outflows, based on the detection of OH absorption profiles with median velocities more blueshifted than -50 km s(-1), is seen in 26 (70%) of the 37 OH-detected targets, suggesting a wide-angle (similar to 145 degrees) outflow geometry. Conversely, unambiguous evidence for molecular inflows, based on the detection of OH absorption profiles with median velocities more redshifted than +50 km s(-1), is seen in only four objects, suggesting a planar or filamentary geometry for the inflowing gas. Terminal outflow velocities of similar to-1000 km s(-1) are measured in several objects, but median outflow velocities are typically similar to-200 km s(-1). While the outflow velocities show no statistically significant dependence on the star formation rate, they are distinctly more blueshifted among systems with large active galactic nucleus (AGN) fractions and luminosities [log (L-AGN/L-circle dot) >= 11.8 +/- 0.3]. The quasars in these systems play a dominant role in driving the molecular outflows. However, the most AGN dominated systems, where OH is seen purely in emission, show relatively modest OH line widths, despite their large AGN luminosities, perhaps indicating that molecular outflows subside once the quasar has cleared a path through the obscuring material.
C1 [Veilleux, S.; Melendez, M.] Univ Maryland, Dept Astron, College Pk, MD 20742 USA.
[Veilleux, S.] Univ Maryland, Joint Space Sci Inst, College Pk, MD 20742 USA.
[Veilleux, S.; Sturm, E.; Gracia-Carpio, J.; Contursi, A.; Lutz, D.; Poglitsch, A.; Davies, R.; Genzel, R.; Tacconi, L.; de Jong, J. A.] Max Planck Inst Extraterr Phys MPE, D-85748 Garching, Germany.
[Fischer, J.; Polisensky, E.] Naval Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
[Gonzalez-Alfonso, E.] Univ Alcala de Henares, Dept Fis & Matemat, E-28871 Madrid, Spain.
[Sternberg, A.; Netzer, H.] Tel Aviv Univ, Sackler Sch Phys & Astron, IL-69978 Ramat Aviv, Israel.
[Hailey-Dunsheath, S.] CALTECH, Dept Astron, Pasadena, CA 91125 USA.
[Verma, A.] Univ Oxford, Dept Astrophys, Oxford OX1 3RH, England.
[Rupke, D. S. N.] Rhodes Coll, Dept Phys, Memphis, TN 38112 USA.
[Maiolino, R.] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England.
[Maiolino, R.] Kavli Inst Cosmol, Cambridge CB3 0HA, England.
[Teng, S. H.] NASA, Observat Cosmol Lab, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
RP Veilleux, S (reprint author), Univ Maryland, Dept Astron, College Pk, MD 20742 USA.
EM veilleux@astro.umd.edu; marcio@astro.umd.edu
FU NASA [1427277, 1454738, 1364043, 1435724, 1456609]; Alexander von
Humboldt Foundation; Spanish Ministerio de Economia y Competitividad
[AYA2010-21697-C05-0, FIS2012-39162-C06-01]; U.S. Office of Naval
Research; National Aeronautics and Space Administration
FX We thank the referee for suggesting changes that helped improve this
paper. Support for this work was provided by NASA through Herschel
contracts 1427277 and 1454738 (S. V. and M.M.) and contracts 1364043,
1435724, and 1456609 (J.F.). S. V. also acknowledges support from the
Alexander von Humboldt Foundation for a "renewed visit" to Germany
following up the original 2009 award, and thanks the host institution,
MPE Garching, where a portion of this paper was written. E. G.-A. is a
Research Associate at the Harvard-Smithsonian Center for Astrophysics,
and thanks the support by the Spanish Ministerio de Economia y
Competitividad under projects AYA2010-21697-C05-0 and
FIS2012-39162-C06-01. Basic research in IR astronomy at the Naval
Research Laboratory is funded by the U.S. Office of Naval Research. This
research made use of PySpecKit, an open-source spectroscopic toolkit
hosted at http://pyspeckit.bitbucket.org. This work has made use of
NASA's Astrophysics Data System Abstract Service and 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.
NR 78
TC 105
Z9 105
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 OCT 10
PY 2013
VL 776
IS 1
AR 27
DI 10.1088/0004-637X/776/1/27
PG 21
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 225UM
UT WOS:000324989000027
ER
PT J
AU Fears, KP
Clark, TD
Petrovykh, DY
AF Fears, Kenan P.
Clark, Thomas D.
Petrovykh, Dmitri Y.
TI Residue-Dependent Adsorption of Model Oligopeptides on Gold
SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Article
ID SELF-ASSEMBLED MONOLAYERS; PEPTIDE-SURFACE INTERACTIONS; SUM-FREQUENCY
GENERATION; SINGLE-STRANDED-DNA; CIRCULAR-DICHROISM; ALKANETHIOL
MONOLAYERS; NEXAFS SPECTROSCOPY; INORGANIC SURFACES; HELICAL PEPTIDES;
AMINO-ACIDS
AB The adsorption to gold surfaces in aqueous solutions has been systematically evaluated for a series of model oligopeptides. The series includes GG-X-GG "host-guest" sequences, where the central X residue is one of 19 proteinogenic amino acids, and water-soluble X-5 and X-10 homo-oligopeptides. Irreversible adsorption on gold of GG-X-GG peptides, which lack significant secondary structure, was quantitatively analyzed by X-ray photoelectron spectroscopy (XPS). The broad range of the quasi-equilibrium surface densities measured by XPS corroborates the hypothesis that surface interactions of GG-X-GG peptides are dominated by their central X residues. The highest surface density was produced by GGCGG, followed by sequences with hydrophobic, charged, and polar central residues. Neither electrostatic nor hydrophobic interactions dominate the adsorption of GG-X-GG peptides: for charged and polar central residues, surface densities correlate with the size of the side chains but not with the sign of the charges, while for hydrophobic residues, the surface densities are uncorrelated with side-chain hydrophobicity. An intriguing result is the disparity in surface adsorption of structural isomers of Leu and Val, which exhibit a correlation between the position of the branched carbon in the side chain and the interaction of the peptide backbone with the surface. The surface density produced by the adsorption of GG-X-GG peptides overall was low; however, adsorption tended to increase as the number of X residues increased (GG-X-GG < X-5 < X-10), suggesting that cooperative binding is important for surface attachment of proteins that readily adsorb on inorganic surfaces. The Leu and Val isomer investigation and trends revealed by our analysis show how the methodology and results described here provide a fundamental reference for future experimental and computational studies and for rational design of peptides that exhibit predictable adsorption behaviors on a given surface.
C1 [Fears, Kenan P.; Clark, Thomas D.; Petrovykh, Dmitri Y.] Naval Res Lab, Div Chem, Washington, DC 20375 USA.
[Petrovykh, Dmitri Y.] Univ Maryland, Dept Phys, College Pk, MD 20742 USA.
RP Clark, TD (reprint author), Naval Res Lab, Div Chem, Washington, DC 20375 USA.
EM thomas.clark@nrl.navy.mil; dmitri.petrovykh@inl.int
RI Petrovykh, Dmitri/A-3432-2008
OI Petrovykh, Dmitri/0000-0001-9089-4076
FU Office of Naval Research (ONR); Air Force Office of Scientific Research
(AFOSR); National Research Council
FX This work was supported by the Office of Naval Research (ONR) and the
Air Force Office of Scientific Research (AFOSR). K.P.F. thanks the
National Research Council for a Postdoctoral Fellowship at NRL during
the initial stages of this project. D.Y.P. and T.D.C. thank Dr. Lloyd
Whitman for his help in initiating this project.
NR 62
TC 9
Z9 9
U1 4
U2 62
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0002-7863
EI 1520-5126
J9 J AM CHEM SOC
JI J. Am. Chem. Soc.
PD OCT 9
PY 2013
VL 135
IS 40
BP 15040
EP 15052
DI 10.1021/ja404346p
PG 13
WC Chemistry, Multidisciplinary
SC Chemistry
GA 243ZH
UT WOS:000326356400028
PM 24079407
ER
PT J
AU Galloway, KS
Justh, EW
Krishnaprasad, PS
AF Galloway, Kevin S.
Justh, Eric W.
Krishnaprasad, P. S.
TI Symmetry and reduction in collectives: cyclic pursuit strategies
SO PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING
SCIENCES
LA English
DT Article
DE collective strategy; cyclic pursuit; constant bearing; symmetry
reduction; shape dynamics; invariant manifold
ID MOTION CAMOUFLAGE; SIDEWAYS VISION; STEERING LAWS; FLIGHT PATHS; PREY;
DYNAMICS; BEHAVIOR; BATS
AB We specify and analyse models that capture the geometry of purposeful motion of a collective of mobile agents, with a focus on planar motion, dyadic strategies and attention graphs which are static, directed and cyclic. Strategies are formulated as constraints on joint shape space and are implemented through feedback laws for the actions of individual agents, here modelled as self-steering particles. By reduction to a labelled shape space (using a redundant parametrization to account for cycle closure constraints) and a further reduction through time rescaling, we characterize various special solutions (relative equilibria and pure shape equilibria) for cyclic pursuit with a constant bearing (CB) strategy. This is accomplished by first proving convergence of the (nonlinear) dynamics to an invariant manifold (the CB pursuit manifold), and then analysing the closed-loop dynamics restricted to the invariant manifold. For illustration, we sketch some low-dimensional examples. This formulation-involving strategies, attention graphs and sensor-driven steering laws- and the resulting templates of collective motion, are part of a broader programme to interpret the mechanisms underlying biological collective motion.
C1 [Krishnaprasad, P. S.] Univ Maryland, Syst Res Inst, College Pk, MD 20742 USA.
[Krishnaprasad, P. S.] Univ Maryland, Dept Elect & Comp Engn, College Pk, MD 20742 USA.
[Galloway, Kevin S.] US Naval Acad, Dept Elect & Comp Engn, Annapolis, MD 21402 USA.
[Justh, Eric W.] Naval Res Lab, Washington, DC 20375 USA.
RP Krishnaprasad, PS (reprint author), Univ Maryland, Syst Res Inst, College Pk, MD 20742 USA.
EM krishna@umd.edu
FU Air Force Office of Scientific Research under AFOSR [FA95501010250]; L-3
Communications Graduate Fellowship; ODDR&E MURI Program through the
Office of Naval Research [N000140710734]; Office of Naval Research
FX This research was supported in part by the Air Force Office of
Scientific Research under AFOSR grant no. FA95501010250; by an L-3
Communications Graduate Fellowship; by the ODDR&E MURI2007 Program grant
no. N000140710734 (through the Office of Naval Research); and by the
Office of Naval Research.
NR 24
TC 4
Z9 4
U1 1
U2 5
PU ROYAL SOC
PI LONDON
PA 6-9 CARLTON HOUSE TERRACE, LONDON SW1Y 5AG, ENGLAND
SN 1364-5021
EI 1471-2946
J9 P ROY SOC A-MATH PHY
JI Proc. R. Soc. A-Math. Phys. Eng. Sci.
PD OCT 8
PY 2013
VL 469
IS 2158
AR 20130264
DI 10.1098/rspa.2013.0264
PG 23
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 298IU
UT WOS:000330318200011
ER
PT J
AU Polei, S
Snijders, PC
Erwin, SC
Himpsel, FJ
Meiwes-Broer, KH
Barke, I
AF Polei, S.
Snijders, P. C.
Erwin, S. C.
Himpsel, F. J.
Meiwes-Broer, K-H.
Barke, I.
TI Structural Transition in Atomic Chains Driven by Transient Doping
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID SCANNING-TUNNELING-MICROSCOPY; MOLECULAR-DYNAMICS; SURFACE;
MANIPULATION; PHASE
AB A reversible structural transition is observed on Si(553)-Au by scanning tunneling microscopy, triggered by electrons injected from the tip into the surface. The periodicity of atomic chains near the step edges changes from the 1 x 3 ground state to a 1 x 2 excited state with increasing tunneling current. The threshold current for this transition is reduced at lower temperatures. In conjunction with first-principles density-functional calculations it is shown that the 1 x 2 phase is created by temporary doping of the atom chains. Random telegraph fluctuations between two levels of the tunneling current provide direct access to the dynamics of the phase transition, revealing lifetimes in the millisecond range.
C1 [Polei, S.; Meiwes-Broer, K-H.; Barke, I.] Univ Rostock, Dept Phys, D-18051 Rostock, Germany.
[Snijders, P. C.] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA.
[Snijders, P. C.] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
[Erwin, S. C.] Naval Res Lab, Ctr Computat Mat Sci, Washington, DC 20375 USA.
[Himpsel, F. J.] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA.
RP Polei, S (reprint author), Univ Rostock, Dept Phys, D-18051 Rostock, Germany.
EM ingo.barke@uni-rostock.de
OI Meiwes-Broer, Karl-Heinz/0000-0002-8516-0470
FU federal state Mecklenburg-Vorpommern within the project Nano4Hydrogen;
U.S. DOE Office of Basic Energy Sciences, Materials Sciences and
Engineering Division, through the Oak Ridge National Laboratory; Office
of Naval Research through the Naval Research Laboratory's Basic Research
Program
FX Funding by the federal state Mecklenburg-Vorpommern within the project
Nano4Hydrogen is gratefully acknowledged (S. P., I. B., K. H. M.-B.). P.
C. S. acknowledges support by the U.S. DOE Office of Basic Energy
Sciences, Materials Sciences and Engineering Division, through the Oak
Ridge National Laboratory. This work was supported by the Office of
Naval Research through the Naval Research Laboratory's Basic Research
Program (SCE). Computations were performed at the DOD Major Shared
Resource Centers at AFRL and ERDC. I. B. acknowledges fruitful
discussions with V. v. Oeynhausen and J. Tiggesbaumker.
NR 47
TC 7
Z9 7
U1 2
U2 41
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD OCT 8
PY 2013
VL 111
IS 15
AR 156801
DI 10.1103/PhysRevLett.111.156801
PG 5
WC Physics, Multidisciplinary
SC Physics
GA 230VX
UT WOS:000325372500008
PM 24160617
ER
PT J
AU Shen, Y
Gao, JQ
Wang, YJ
Hasanyan, D
Finkel, P
Li, JF
Viehland, D
AF Shen, Ying
Gao, Junqi
Wang, Yaojin
Hasanyan, Davresh
Finkel, Peter
Li, Jiefang
Viehland, D.
TI Flux distraction effect on magnetoelectric laminate sensors and
gradiometer
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
AB A magnetic flux distraction effect caused by a nearby metallic material was investigated for Metglas/Pb(Mg1/3Nb2/3)O-3-PbTiO3 laminated magnetoelectric ( ME) sensors. Using flux distraction, a ME sensor can perform an accurate search for metallic targets of different dimensions at various distances. Detection results and simulations were in good agreement. The findings demonstrate an effective means to employ stationary ME sensors and gradiometers for magnetic search applications. (C) 2013 AIP Publishing LLC.
C1 [Shen, Ying; Gao, Junqi; Wang, Yaojin; Hasanyan, Davresh; Li, Jiefang; Viehland, D.] Virginia Tech, Dept Mat Sci & Engn, Blacksburg, VA 24061 USA.
[Finkel, Peter] Naval 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 17
TC 0
Z9 0
U1 2
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
EI 1089-7550
J9 J APPL PHYS
JI J. Appl. Phys.
PD OCT 7
PY 2013
VL 114
IS 13
AR 134104
DI 10.1063/1.4824184
PG 5
WC Physics, Applied
SC Physics
GA 232JB
UT WOS:000325488700035
ER
PT J
AU Roh, JH
Tyagi, M
Hogan, TE
Roland, CM
AF Roh, J. H.
Tyagi, M.
Hogan, T. E.
Roland, C. M.
TI Effect of binding to carbon black on the dynamics of 1,4-polybutadiene
SO JOURNAL OF CHEMICAL PHYSICS
LA English
DT Article
ID ELASTIC NEUTRON-SCATTERING; GLASS-TRANSITION BEHAVIOR; SOLID-STATE NMR;
MOLECULAR-DYNAMICS; NATURAL-RUBBER; RESTRICTED DYNAMICS; SEGMENTAL
DYNAMICS; FILLED ELASTOMERS; RANDOM IONOMERS; LOCAL DYNAMICS
AB The nature of the interactions of polymers at the surface of nanoparticles is crucial to understanding the dynamics and their relation to mechanical properties. The effect of binding (both chemical attachment and physical adsorption) on the local and global dynamics of chain molecules remains a controversial subject. Using neutron scattering and dynamic mechanical spectroscopies, we measured the slow conformational and terminal relaxations, as well as the fast local dynamics, of 1,4-polybutadiene (PBD) containing carbon black (CB) particles. We observed a substantial decrease in the flexibility of bound segments at temperatures through the glass transition temperature, T-g. The longer range motions of the PBD become more suppressed and cooperative as temperature decreases, while the relaxation time of the fast local dynamics is little affected by the CB particles. The mobile fraction of PBD is less sensitive to temperature when bound. Mechanical spectroscopy indicates that both the local segmental dynamics and the global chain modes are slowed by the filler. These results are consistent with transient structural arrest of the slow dynamics of atoms adjacent to the particles. (C) 2013 AIP Publishing LLC.
C1 [Roh, J. H.; Roland, C. M.] USN, Res Lab, Div Chem, Washington, DC 20375 USA.
[Tyagi, M.] NIST, Ctr Neutron Res, Gaithersburg, MD 20899 USA.
[Tyagi, M.] Univ Maryland, Dept Mat Sci & Engn, College Pk, MD 20742 USA.
[Hogan, T. E.] Bridgestone Amer, Ctr Res & Technol, Akron, OH 44317 USA.
RP Roh, JH (reprint author), CNR, Rome, Italy.
EM mike.roland@nrl.navy.mil
RI Tyagi, Madhu Sudan/M-4693-2014
OI Tyagi, Madhu Sudan/0000-0002-4364-7176
FU National Research Council-Naval Research Laboratory postdoctoral
fellowship; Office of Naval Research; National Science Foundation
[DMR-0944772]
FX J.H.R. acknowledges a National Research Council-Naval Research
Laboratory postdoctoral fellowship. This work was supported in part by
the Office of Naval Research and utilized facilities supported in part
by the National Science Foundation under Agreement No. DMR-0944772. The
identification of commercial products does not imply endorsement by the
National Institute of Standards and Technology nor does it imply that
these are the best for the purpose.
NR 65
TC 3
Z9 3
U1 3
U2 39
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-9606
EI 1089-7690
J9 J CHEM PHYS
JI J. Chem. Phys.
PD OCT 7
PY 2013
VL 139
IS 13
AR 134905
DI 10.1063/1.4822476
PG 7
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 232OL
UT WOS:000325503300038
PM 24116583
ER
PT J
AU McKinney, JD
Urick, VJ
Hastings, AS
AF McKinney, Jason D.
Urick, Vincent J.
Hastings, Alexander S.
TI Bias-dependent distortion in optical comb-based analog optical links
SO OPTICS EXPRESS
LA English
DT Article
ID GENERATION; MODULATOR; LASERS
AB We provide the first experimental demonstration of the impact of bias-frequency on second-order distortion in sampled analog optical links. We show proper selection of bias frequency yields >48 dB improvement in second-order distortion performance. In addition, we demonstrate that measurement of the average frequency of the optical comb may be used to determine the optimum bias frequency - without the need for involved radio-frequency distortion measurements. (C) 2013 Optical Society of America
C1 [McKinney, Jason D.; Urick, Vincent J.; Hastings, Alexander S.] US Naval Res Lab, Washington, DC 20375 USA.
RP McKinney, JD (reprint author), US Naval Res Lab, Code 5650,4555 Overlook Ave SW, Washington, DC 20375 USA.
EM jason.mckinney@nrl.navy.mil
NR 13
TC 0
Z9 0
U1 2
U2 8
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 OCT 7
PY 2013
VL 21
IS 20
BP 23695
EP 23705
DI 10.1364/OE.21.023695
PG 11
WC Optics
SC Optics
GA 233EU
UT WOS:000325549800067
PM 24104282
ER
PT J
AU Eliazar, II
Shlesinger, MF
AF Eliazar, Iddo I.
Shlesinger, Michael F.
TI Noise cascades and Levy correlations
SO JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL
LA English
DT Article
ID ADVECTION-DISPERSION EQUATION; ANOMALOUS DIFFUSION; FRACTIONAL
DISPERSION; SOLAR-WIND; MOTION; LAWS; TRANSPORT; MEDIA; MODEL
AB We explore a general model of stochastic noise cascades which can be illustrated by the example of rain dropping down on the earth and then seeping through layers of ground-pouring down layer by layer. The rain represents an input noise that is assumed to be spatially uncorrelated, and each ground layer represents a stochastic convolution filter. As the input noise percolates through the layered filters spatial correlations-which are initially nonexistent-build up. We study this build-up of correlations and focus on the following question: are there universally emergent forms of spatial correlations? The answer is proved affirmative, and is shown to be uniquely characterized by power spectra that coincide with the Fourier transform of the spherically symmetric Levy distribution. We term these universally emergent spatial correlations 'Levy correlations'.
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 60
TC 0
Z9 0
U1 0
U2 2
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 1751-8113
J9 J PHYS A-MATH THEOR
JI J. Phys. A-Math. Theor.
PD OCT 4
PY 2013
VL 46
IS 39
AR 392001
DI 10.1088/1751-8113/46/39/392001
PG 8
WC Physics, Multidisciplinary; Physics, Mathematical
SC Physics
GA 223HT
UT WOS:000324796000001
ER
PT J
AU DuBois, AM
Thomas, E
Amatucci, WE
Ganguli, G
AF DuBois, Ami M.
Thomas, Edward, Jr.
Amatucci, William E.
Ganguli, Gurudas
TI Plasma Response to a Varying Degree of Stress
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID SHEET BOUNDARY-LAYER; KELVIN-HELMHOLTZ INSTABILITY; SHEAR-DRIVEN
INSTABILITIES; TRANSVERSE VELOCITY SHEAR; ION-CYCLOTRON WAVES; ROTATING
PLASMA; FLOW; EVOLUTION; FREQUENCY; MAGNETOPAUSE
AB We report experimental evidence of a seamless transition between three distinct modes in a magnetized plasma with a transverse sheared flow as the ratio of the ion gyroradius to the shear scale length (a measure of shear magnitude) is varied. This was achieved using a dual plasma configuration in a laboratory experiment, where a sheared flow oriented perpendicular to a background magnetic field is localized at the boundary of the plasmas. This confirms the basic theory that plasma is unstable to transverse velocity shear in a broad frequency and wavelength range. The experiment characterizes the compression or relaxation of boundary layers often generated in a variety of laboratory and space plasma processes.
C1 [DuBois, Ami M.; Thomas, Edward, Jr.] Auburn Univ, Dept Phys, Auburn, AL 36849 USA.
[Amatucci, William E.; Ganguli, Gurudas] Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
RP DuBois, AM (reprint author), Auburn Univ, Dept Phys, Auburn, AL 36849 USA.
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 the Defense Threat Reduction Agency (Grant No.
HDTRA1-10-1-0019) and the Department of Energy-Office of Fusion Energy
Sciences (Grant No. DE-FG02-00ER54476).
NR 41
TC 7
Z9 7
U1 1
U2 9
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD OCT 2
PY 2013
VL 111
IS 14
AR 145002
DI 10.1103/PhysRevLett.111.145002
PG 5
WC Physics, Multidisciplinary
SC Physics
GA 230UW
UT WOS:000325369600007
PM 24138246
ER
PT J
AU Perez, RS
Skinner, A
Weyhrauch, P
Niehaus, J
Lathan, C
Schwaitzberg, SD
Cao, CGL
AF Perez, Ray S.
Skinner, Anna
Weyhrauch, Peter
Niehaus, James
Lathan, Corinna
Schwaitzberg, Steven D.
Cao, Caroline G. L.
TI Prevention of Surgical Skill Decay
SO MILITARY MEDICINE
LA English
DT Article
ID LAPAROSCOPIC SURGERY; SIMULATOR; AUTOMATICITY; PERFORMANCE; RETENTION
AB The U.S. military medical community spends a great deal of time and resources training its personnel to provide them with the knowledge and skills necessary to perform life-saving tasks, both on the battlefield and at home. However, personnel may fail to retain specialized knowledge and skills if they are not applied during the typical periods of nonuse within the military deployment cycle, and retention of critical knowledge and skills is crucial to the successful care of warfighters. For example, we researched the skill and knowledge loss associated with specialized surgical skills such as those required to perform laparoscopic surgery (LS) procedures. These skills are subject to decay when military surgeons perform combat casualty care during their deployment instead of LS. This article describes our preliminary research identifying critical LS skills, as well as their acquisition and decay rates. It introduces models that identify critical skills related to laparoscopy, and proposes objective metrics for measuring these critical skills. This research will provide insight into best practices for (1) training skills that are durable and resistant to skill decay, (2) assessing these skills over time, and (3) introducing effective refresher training at appropriate intervals to maintain skill proficiency.
C1 [Perez, Ray S.] Off Naval Res, Arlington, VA 22203 USA.
[Skinner, Anna; Lathan, Corinna] AnthroTronix Inc, Silver Spring, MD 20910 USA.
[Weyhrauch, Peter; Niehaus, James] Charles River Analytics Inc, Cambridge, MA 02138 USA.
[Schwaitzberg, Steven D.] Cambridge Hlth Alliance, Cambridge, MA 02139 USA.
[Cao, Caroline G. L.] Wright State Univ, Biomed Ind & Human Factors Engn, Dayton, OH 45435 USA.
RP Perez, RS (reprint author), Off Naval Res, 875 North Randolph St, Arlington, VA 22203 USA.
FU Telemedicine and Advanced Technology Research Center under two Small
Business Innovation Research contracts, AnthroTronix, Inc.
[N0001411C0420]; Charles River Analytics, Inc. [N0001411C0426]; Office
of Naval Research [N00014-10-1-0978]; Office of Naval Research
FX This work is being conducted in collaboration with the Uniformed
Services University of the Health Sciences, the National Capital
Simulation Center, and Harvard Medical School. This research is funded
by the Office of Naval Research and the Telemedicine and Advanced
Technology Research Center under two Small Business Innovation Research
contracts, AnthroTronix, Inc. (N0001411C0420) and Charles River
Analytics, Inc. (N0001411C0426). The work reported herein was also
partially supported by a grant from the Office of Naval Research, Award
Number N00014-10-1-0978.
NR 36
TC 2
Z9 2
U1 2
U2 7
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 OCT
PY 2013
VL 178
IS 10
SU S
SI SI
BP 76
EP 86
DI 10.7205/MILMED-D-13-00216
PG 11
WC Medicine, General & Internal
SC General & Internal Medicine
GA AN7UG
UT WOS:000340805900011
PM 24084308
ER
PT J
AU Schmied, EA
Highfill-McRoy, RM
Crain, JA
Larson, GE
AF Schmied, Emily A.
Highfill-McRoy, Robyn M.
Crain, Jenny A.
Larson, Gerald E.
TI Implications of Psychiatric Comorbidity Among Combat Veterans
SO MILITARY MEDICINE
LA English
DT Article
ID MENTAL-HEALTH SURVEY; POSTTRAUMATIC-STRESS-DISORDER; RISK-FACTORS;
ANTISOCIAL-BEHAVIOR; US MILITARY; PREVALENCE; AFGHANISTAN; SUICIDE;
ANXIETY; CARE
AB Limited research exists regarding the rates of and outcomes associated with psychiatric comorbidity among active duty military personnel. This study investigated the rates of comorbid psychiatric diagnoses among 81,720 U.S. Marines, and assessed the relationships between preexisting comorbid disorders and risk of psychiatric hospitalizations and attrition from service. The study used medical, deployment, and personnel records for all Marines who enlisted between 2002 and 2005. The baseline rate of comorbidity was 1.3% for Marines who deployed during the first term of service, and 6.3% for Marines who did not deploy. The most common baseline comorbidity among deployed Marines was mood disorders with anxiety disorders, and mood and adjustment disorders among nondeployed Marines. Logistic regression analyses revealed Marines with comorbid diagnoses before deployment were over three times more likely to attrite (odds ratio = 3.4, p < 0.001) and over five times more likely to be hospitalized for psychiatric symptoms (odds ratio = 5.1, p < 0.001) following deployment than those with no diagnoses. Similar patterns emerged among nondeployers. Outcomes associated with comorbid conditions were substantially worse than outcomes for single conditions. These findings demonstrate that Marines with a history of comorbid psychiatric diagnoses are at a much greater risk for adverse outcomes, specifically attrition from the military and psychiatric hospitalization.
C1 [Schmied, Emily A.; Highfill-McRoy, Robyn M.; Crain, Jenny A.; Larson, Gerald E.] Naval Hlth Res Ctr, Dept Behav Sci & Epidemiol, San Diego, CA 92106 USA.
RP Schmied, EA (reprint author), Naval Hlth Res Ctr, Dept Behav Sci & Epidemiol, 140 Sylvester Rd, San Diego, CA 92106 USA.
FU Department of the Army Defense Medical Research and Development Program
[60209]
FX The authors wish to express their sincere gratitude to Thierry Nedellec
of the Naval Health Research Center for his assistance with this
project. This represents report 11-680, supported by the Department of
the Army Defense Medical Research and Development Program, under work
unit 60209. 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.2005.0003).
NR 36
TC 5
Z9 5
U1 0
U2 2
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 OCT
PY 2013
VL 178
IS 10
BP 1051
EP 1058
DI 10.7205/MILMED-D-13-00135
PG 8
WC Medicine, General & Internal
SC General & Internal Medicine
GA AN7UD
UT WOS:000340805600004
PM 24083917
ER
PT J
AU Taylor, MK
Larson, GE
Norman, SB
AF Taylor, Marcus K.
Larson, Gerald E.
Norman, Sonya B.
TI Depression and Pain: Independent and Additive Relationships to Anger
Expression
SO MILITARY MEDICINE
LA English
DT Article
ID MENTAL-HEALTH PROBLEMS; PRIMARY-CARE; TRAIT-ANGER; RISK-TAKING; COMBAT;
IRAQ; COMORBIDITY; AFGHANISTAN; EPIDEMIOLOGY; AGGRESSION
AB Anger and anger expression (ANGX) are concerns in the U.S. military population and have been linked to stress dysregulation, heart. disease, and poor coping behaviors. Objective: We examined associations between depression, pain, and anger expression among military veterans. Method: Subjects (N = 474) completed a depression scale, a measure of pain across the last 4 weeks, and an ANGX scale. A multiple regression model assessed the independent and additive relationships of depression and pain to ANGX. Results: Almost 40% of subjects met the case definition for either major or minor depression. Subjects reported low-to-moderate levels of pain (mean = 6.3 of possible 20) and somewhat frequent episodes of ANGX. As expected, depression and pain were positively associated (r = 0.42, p < 0.001) and crossover effects of antidepressant and pain medication were shown. Specifically, frequency of antidepressant medication use was inversely associated with pain symptoms (r = 0.20, p < 0.001) and frequency of pain medication use was inversely linked to depressive symptoms (r = 0.21, p < 0.001). In a multiple regression model, depression (beta = 0.58, p < 0.001) and pain (beta = 0.21, p < 0.05) showed independent and additive relationships to ANGX (F = 41.5, p < 0.001, R-adj(2) = 0.31). Conclusions: This study offers empirical support for depression pain comorbidity and elucidates independent and additive contributions of depression and pain to ANGX.
C1 [Taylor, Marcus K.; Larson, Gerald E.; Norman, Sonya B.] Naval Hlth Res Ctr, Dept Behav Sci & Epidemiol, San Diego, CA 92106 USA.
[Norman, Sonya B.] Univ Calif San Diego, Dept Psychiat, La Jolla, CA 92093 USA.
RP Taylor, MK (reprint author), Naval Hlth Res Ctr, Dept Behav Sci & Epidemiol, 140 Sylvester Rd, San Diego, CA 92106 USA.
FU U.S. Navy Bureau of Medicine and Surgery, Wounded, Ill; Injured Program
FX The authors wish to express their sincere gratitude to Laurel Hourani,
Randall Bender, Russ Peeler, Belinda Weimer, Michael Bradshaw, Carolyn
Reyes, Carrie Borst, and Jennifer Iriondo-Perez from Research Triangle
Institute, and Emily Schmied from Naval Health Research Center for their
valuable assistance to this project. This study was supported by a grant
from the U.S. Navy Bureau of Medicine and Surgery, Wounded, Ill, and
Injured Program.
NR 46
TC 1
Z9 1
U1 1
U2 2
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 OCT
PY 2013
VL 178
IS 10
BP 1065
EP 1070
DI 10.7205/MILMED-D-13-00253
PG 6
WC Medicine, General & Internal
SC General & Internal Medicine
GA AN7UD
UT WOS:000340805600006
PM 24083919
ER
PT J
AU Porter, WD
Rice, GM
AF Porter, William D.
Rice, G. Merrill
TI Urinary Tract Calculi in Military Aviators
SO AVIATION SPACE AND ENVIRONMENTAL MEDICINE
LA English
DT Article
DE urinary calculi; military personnel; epidemiology; aviator
ID STONE DISEASE; NEPHROLITHIASIS; UROLITHIASIS; EPIDEMIOLOGY; PREVALENCE;
TIME; RISK
AB Background: Urinary tract calculi are a common affliction in the United States and estimates of the adult lifetime risk of developing this condition range from 10 to 15%. Although highly variable, the clinical presentation of someone afflicted with urinary tract calculi typically involves varying degrees of pain, nausea, hematuria, and dysuria. Current disease, as well as a history of urinary tract calculi, is potentially disqualifying for aviation duties in the United States military as well as for commercial aviators. Methods: Utilizing population based data from the Defense Medical Epidemiology Database (DMED), the current descriptive epidemiology of urinary tract calculi among military aviators was examined. Results: Based on the data collected, the overall annual incidence density of urinary tract calculi for DoD personnel is approximately 4.8 events/1000 PY. The overall annual incidence density of urinary tract calculi is slightly lower in aviators as compared to the nonaviator DoD population (4.4 events/1000 PY vs. 4.8 events/1000 PY). Discussion: Even though in-flight incapacitation from this malady is believed to be exceedingly rare, the incidence of urinary tract stones and their related morbidity should remain an important area of clinical focus.
C1 [Porter, William D.] 1st Cavalry Div, Ft Hood, TX 76544 USA.
[Rice, G. Merrill] Naval Aerosp Med Inst, Combined Army Navy Aerosp Med Residency, Naval Air Stn, Pensacola, FL USA.
RP Porter, WD (reprint author), 1st Cavalry Div, Ft Hood, TX 76544 USA.
EM william.porter2@us.army.mil
NR 18
TC 0
Z9 0
U1 2
U2 3
PU AEROSPACE MEDICAL ASSOC
PI ALEXANDRIA
PA 320 S HENRY ST, ALEXANDRIA, VA 22314-3579 USA
SN 0095-6562
EI 1943-4448
J9 AVIAT SPACE ENVIR MD
JI Aviat. Space Environ. Med.
PD OCT
PY 2013
VL 84
IS 10
BP 1041
EP 1045
DI 10.3357/ASEM.3597.2013
PG 5
WC Public, Environmental & Occupational Health; Medicine, General &
Internal; Sport Sciences
SC Public, Environmental & Occupational Health; General & Internal
Medicine; Sport Sciences
GA AD1LW
UT WOS:000332996500005
PM 24261056
ER
PT J
AU Grbovic, D
Alves, F
Kearney, B
Waxer, B
Perez, R
Omictin, G
AF Grbovic, Dragoslav
Alves, Fabio
Kearney, Brian
Waxer, Benjamin
Perez, Rolando
Omictin, George
TI Metal-organic hybrid resonant terahertz absorbers with SU-8 photoresist
dielectric layer
SO JOURNAL OF MICRO-NANOLITHOGRAPHY MEMS AND MOEMS
LA English
DT Article
DE micromachining; metamaterials; organic-inorganic hybrid materials;
electromagnetic wave absorption; terahertz radiation; terahertz
absorption
ID QUANTUM-CASCADE LASERS; METAMATERIAL ABSORBER; BAND; FILMS
AB We report on the characterization of metal-organic hybrid metamaterials for MEMS-based terahertz (THz) thermal sensors and on the characterization of refractive index of SU-8 in the THz band. This type of metamaterial, coupled with the applicability of SU-8 as a structural material, offers possibilities for quick, simple microfabrication of THz imagers. SU-8, a negative photoresist, is a low-cost material that can quickly be spun onto a substrate at a wide range of thicknesses, and then photolithographically patterned into a variety of structures. It is also transparent to THz radiation and thus a suitable choice for a dielectric spacer in metamaterials. We investigated metamaterials consisting of a 0.18 mu m Al ground plane and 0.18-mu m layer of patterned Al separated by a dielectric spacer of similar to 0.5 mu m of SU-8. Absorption close to 70% at around 6.1 THz was observed. A model was developed to simulate absorption spectra of several metamaterials, agreeing well with experiments. Matching simulation to measurements was used to determine the refractive index of SU-8 at THz frequencies, extending the known values from 0.1 to 1.6 THz to as far as 10 THz. Finally, Kirchoff's law for these metamaterials was verified and their use as THz emitters demonstrated with about 0.8 mW/cm(2) output. (C) 2013 Society of Photo-Optical Instrumentation Engineers (SPIE)
C1 [Grbovic, Dragoslav; Alves, Fabio; Kearney, Brian] Naval Postgrad Sch, Dept Phys, Monterey, CA 93943 USA.
[Waxer, Benjamin] CALTECH, Pasadena, CA 91106 USA.
[Perez, Rolando; Omictin, George] Hartnell Coll, Salinas, CA 93901 USA.
RP Grbovic, D (reprint author), Naval Postgrad Sch, Dept Phys, 833 Dyer Rd, Monterey, CA 93943 USA.
EM dgrbovic@nps.edu
NR 28
TC 3
Z9 3
U1 1
U2 20
PU SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98225 USA
SN 1932-5150
EI 1932-5134
J9 J MICRO-NANOLITH MEM
JI J. Micro-Nanolithogr. MEMS MOEMS
PD OCT-DEC
PY 2013
VL 12
IS 4
AR 041204
DI 10.1117/1.JMM.12.4.041204
PG 5
WC Engineering, Electrical & Electronic; Nanoscience & Nanotechnology;
Materials Science, Multidisciplinary; Optics
SC Engineering; Science & Technology - Other Topics; Materials Science;
Optics
GA AB2GA
UT WOS:000331610000006
ER
PT J
AU Ellenberger, NW
AF Ellenberger, Nancy W.
TI A Room of His Own: A Literary-Cultural Study of Victorian Clubland
SO JOURNAL OF BRITISH STUDIES
LA English
DT Book Review
C1 [Ellenberger, Nancy W.] US Naval Acad, Annapolis, MD 21402 USA.
RP Ellenberger, NW (reprint author), US Naval Acad, Annapolis, MD 21402 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 0021-9371
EI 1545-6986
J9 J BRIT STUD
JI J. Br. Stud.
PD OCT
PY 2013
VL 52
IS 4
BP 1084
EP 1085
DI 10.1017/jbr.2013.152
PG 2
WC History
SC History
GA 303AF
UT WOS:000330645900036
ER
PT J
AU Philo, L
Chien, S
Chu, S
AF Philo, Leonard
Chien, Sharon
Chu, Susan
TI Retroperitoneal Bleeding: An Odd Presentation for Hepatocellular
Carcinoma (HCC)
SO AMERICAN JOURNAL OF GASTROENTEROLOGY
LA English
DT Meeting Abstract
CT 78th Annual Scientific Meeting of the
American-College-of-Gastroenterology
CY OCT 11-16, 2013
CL San Diego, CA
SP Amer Coll Gastroenterol
C1 [Philo, Leonard] NMCSD, San Diego, CA USA.
[Chien, Sharon; Chu, Susan] Sharp Rees Stealy Med Grp, San Diego, CA USA.
NR 0
TC 0
Z9 0
U1 0
U2 1
PU NATURE PUBLISHING GROUP
PI NEW YORK
PA 75 VARICK ST, 9TH FLR, NEW YORK, NY 10013-1917 USA
SN 0002-9270
EI 1572-0241
J9 AM J GASTROENTEROL
JI Am. J. Gastroenterol.
PD OCT
PY 2013
VL 108
SU 1
MA 1118
BP S332
EP S332
PG 1
WC Gastroenterology & Hepatology
SC Gastroenterology & Hepatology
GA 296II
UT WOS:000330178101270
ER
PT J
AU Stickle, E
Nowrouzzadeh, F
Glasser, J
AF Stickle, Edward
Nowrouzzadeh, Farzad
Glasser, Jessie
TI Crohn's Disease? Wait and CMV
SO AMERICAN JOURNAL OF GASTROENTEROLOGY
LA English
DT Meeting Abstract
CT 78th Annual Scientific Meeting of the
American-College-of-Gastroenterology
CY OCT 11-16, 2013
CL San Diego, CA
SP Amer Coll Gastroenterol
C1 [Stickle, Edward; Nowrouzzadeh, Farzad; Glasser, Jessie] Naval Med Ctr Portsmouth, Portsmouth, VA USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU NATURE PUBLISHING GROUP
PI NEW YORK
PA 75 VARICK ST, 9TH FLR, NEW YORK, NY 10013-1917 USA
SN 0002-9270
EI 1572-0241
J9 AM J GASTROENTEROL
JI Am. J. Gastroenterol.
PD OCT
PY 2013
VL 108
SU 1
MA 1373
BP S408
EP S408
PG 1
WC Gastroenterology & Hepatology
SC Gastroenterology & Hepatology
GA 296II
UT WOS:000330178101525
ER
PT J
AU Garren, DJ
AF Garren, David J.
TI Foundations of Freedom
SO ANALYSIS
LA English
DT Article
C1 US Naval Acad, Annapolis, MD 21402 USA.
RP Garren, DJ (reprint author), US Naval Acad, Annapolis, MD 21402 USA.
EM garren@usna.edu
NR 3
TC 0
Z9 0
U1 0
U2 0
PU OXFORD UNIV PRESS
PI OXFORD
PA GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
SN 0003-2638
EI 1467-8284
J9 ANALYSIS-UK
JI Analysis
PD OCT
PY 2013
VL 73
IS 4
BP 797
EP 801
DI 10.1093/analys/ant060
PG 6
WC Philosophy
SC Philosophy
GA 304HV
UT WOS:000330738600020
ER
PT J
AU Hansen, JK
AF Hansen, Jason K.
TI Estimating stakeholder benefits of community water system
regionalization
SO JOURNAL AMERICAN WATER WORKS ASSOCIATION
LA English
DT Article
ID MANAGEMENT
AB Community water system regionalization (CWSR) provides a solution for small community water systems to the conundrum of large fixed costs and a small rate base. In practice, however, very few systems actually regionalize. Applying social welfare theory, this article estimates stakeholder benefits from CWSR. Results are reported for three New Mexico communities as case studies in which CWSR was hypothetically imposed. Benefits for consumers are non-negative across price scenarios, but in some cases producer benefits are negative. The findings suggest that reluctance to regionalize is not in consumers' economic interest but it may be for producers. Depending on the water price that follows CWSR and the savings achieved by economies of scale, consumers gain at producer expense. The results shed light on issues that policymakers should consider when evaluating the merits of CWSR. Producers' historic reluctance to impose CWSR may in fact be driven by economics.
C1 Naval Postgrad Sch, Def Resources Management Inst, Monterey, CA 93943 USA.
RP Hansen, JK (reprint author), Naval Postgrad Sch, Def Resources Management Inst, Monterey, CA 93943 USA.
EM jkhansen@nps.edu
NR 12
TC 0
Z9 0
U1 2
U2 7
PU AMER WATER WORKS ASSOC
PI DENVER
PA 6666 W QUINCY AVE, DENVER, CO 80235 USA
SN 2164-4535
J9 J AM WATER WORKS ASS
JI J. Am. Water Work Assoc.
PD OCT
PY 2013
VL 105
IS 10
BP 65
EP 66
DI 10.5942/jawwa.2013.105.0105
PG 2
WC Engineering, Civil; Water Resources
SC Engineering; Water Resources
GA 298MY
UT WOS:000330329200016
ER
PT J
AU Lawnick, MM
Champion, HR
Gennarelli, T
Galarneau, MR
D'Souza, E
Vickers, RR
Wing, V
Eastridge, BJ
Young, LA
Dye, J
Spott, MA
Jenkins, DH
Holcomb, J
Blackbourne, LH
Ficke, JR
Kalin, EJ
Flaherty, S
AF Lawnick, Mary M.
Champion, Howard R.
Gennarelli, Thomas
Galarneau, Michael R.
D'Souza, Edwin
Vickers, Ross R.
Wing, Vern
Eastridge, Brian J.
Young, Lee Ann
Dye, Judy
Spott, Mary Ann
Jenkins, Donald H.
Holcomb, John
Blackbourne, Lorne H.
Ficke, James R.
Kalin, Ellen J.
Flaherty, Stephen
TI Combat injury coding: A review and reconfiguration
SO JOURNAL OF TRAUMA AND ACUTE CARE SURGERY
LA English
DT Review
DE Combat; trauma; injury severity scoring; impairment
ID SEVERITY SCORE; SCALE; PREDICTOR; MORTALITY; DEATH; CARE; WAR
AB BACKGROUND: The current civilian Abbreviated Injury Scale (AIS), designed for automobile crash injuries, yields important information about civilian injuries. It has been recognized for some time, however, that both the AIS and AIS-based scores such as the Injury Severity Score (ISS) are inadequate for describing penetrating injuries, especially those sustained in combat. Existing injury coding systems do not adequately describe (they actually exclude) combat injuries such as the devastating multi-mechanistic injuries resulting from attacks with improvised explosive devices (IEDs).
METHODS: After quantifying the inapplicability of current coding systems, the Military Combat Injury Scale (MCIS), which includes injury descriptors that accurately characterize combat anatomic injury, and the Military Functional Incapacity Scale (MFIS), which indicates immediate tactical functional impairment, were developed by a large tri-service military and civilian group of combat trauma subject-matter experts. Assignment of MCIS severity levels was based on urgency, level of care needed, and risk of death from each individual injury. The MFIS was developed based on the casualty's ability to shoot, move, and communicate, and comprises four levels ranging from "Able to continue mission" to "Lost to military." Separate functional impairments were identified for injuries aboard ship. Preliminary evaluation of MCIS discrimination, calibration, and casualty disposition was performed on 992 combat-injured patients using two modeling processes.
RESULTS: Based on combat casualty data, the MCIS is a new, simpler, comprehensive severity scale with 269 codes (vs. 1999 in AIS) that specifically characterize and distinguish the many unique injuries encountered in combat. The MCIS integrates with the MFIS, which associates immediate combat functional impairment with minor and moderate-severity injuries. Predictive validation on combat datasets shows improved performance over AIS-based tools in addition to improved face, construct, and content validity and coding inter-rater reliability. Thus, the MCIS has greater relevance, accuracy, and precision for many military-specific applications.
CONCLUSION: Over a period of several years, the Military Combat Injury Scale and Military Functional Incapacity Scale were developed, tested and validated by teams of civilian and tri-service military expertise. MCIS shows significant promise in documenting the nature, severity and complexity of modern combat injury. Copyright (C) 2013 by Lippincott Williams & Wilkins
C1 [Lawnick, Mary M.; Champion, Howard R.; Kalin, Ellen J.] SimQuest Solut Inc, Dept Surg, Annapolis, MD USA.
[Champion, Howard R.] Uniformed Serv Univ Hlth Sci, Bestheda, MD USA.
[Gennarelli, Thomas] Med Coll Wisconsin, Milwaukee, WI 53226 USA.
[Galarneau, Michael R.; D'Souza, Edwin; Vickers, Ross R.; Wing, Vern; Dye, Judy] Naval Hlth Res Ctr, San Diego, CA USA.
[Spott, Mary Ann; Blackbourne, Lorne H.] US Army Inst Surg Res, San Antonio, TX USA.
[Holcomb, John] Univ Texas Hlth Sci Ctr, San Antonio, TX USA.
[Ficke, James R.] Brooke Army Med Ctr, San Antonio, TX USA.
[Young, Lee Ann] Appl Res Associates, Albuquerque, NM USA.
[Jenkins, Donald H.] Mayo Clin, Rochester, MN USA.
[Flaherty, Stephen] Walter Reed Army Med Ctr, Washington, DC 20307 USA.
RP Champion, HR (reprint author), 954 Melvin Rd, Annapolis, MD USA.
EM hrchampion@aol.com
FU Office of Naval Research [N00014-07-C-0076, N00014-11-C-0061]
FX This material is based on work supported by the Office of Naval
Research, Advanced Requirements for Crew Safety (ARCS) under Contract
No. N00014-07-C-0076 and Human Injury and Treatment under Contract No.
N00014-11-C-0061
NR 25
TC 7
Z9 7
U1 0
U2 6
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 2163-0755
EI 2163-0763
J9 J TRAUMA ACUTE CARE
JI J. Trauma Acute Care Surg.
PD OCT
PY 2013
VL 75
IS 4
BP 573
EP 581
DI 10.1097/TA.0b013e3182a53bc6
PG 9
WC Critical Care Medicine; Surgery
SC General & Internal Medicine; Surgery
GA 300IK
UT WOS:000330457400005
PM 24064868
ER
PT J
AU Colosi, JA
Worcester, PF
AF Colosi, John A.
Worcester, Peter F.
TI Introduction to special issue on deep water ocean acoustics
SO JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
LA English
DT Editorial Material
C1 [Colosi, John A.] Naval Postgrad Sch, Dept Oceanog, Monterey, CA 93943 USA.
[Worcester, Peter F.] Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92037 USA.
RP Colosi, JA (reprint author), Naval Postgrad Sch, Dept Oceanog, Monterey, CA 93943 USA.
EM jacolosi@nps.edu
NR 0
TC 0
Z9 0
U1 1
U2 3
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 OCT
PY 2013
VL 134
IS 4
BP 3115
EP 3115
DI 10.1121/1.4821096
PG 1
WC Acoustics; Audiology & Speech-Language Pathology
SC Acoustics; Audiology & Speech-Language Pathology
GA 295MH
UT WOS:000330119700062
PM 24116508
ER
PT J
AU Colosi, JA
AF Colosi, John A.
TI On horizontal coherence estimates from path integral theory for sound
propagation through random ocean sound-speed perturbations
SO JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
LA English
DT Article
ID DEEP; CHANNEL; WATER; RAYS
AB Previously published results from path integral theory for the horizontal coherence length utilized an empirical relation for the phase structure function density that was quite different from path integral results obtained for depth and time coherence where the phase structure function density was expanded to second order in the lag. This letter presents a result for horizontal coherence length which carries out the quadratic expansion and analytically solves the integral equations. Some simple calculations of horizontal coherence length demonstrate the differences between the present and old expressions. In contrast to the empirical result the present expression shows the expected one over square-root range and one over frequency scalings. The results also show more clearly how transverse coherence is sensitive to the space-time scales of internal waves and other environmental parameters.
C1 Naval Postgrad Sch, Dept Oceanog, Monterey, CA 93943 USA.
RP Colosi, JA (reprint author), Naval Postgrad Sch, Dept Oceanog, Monterey, CA 93943 USA.
EM jacolosi@nps.edu
FU Office of Naval Research [322]
FX This work was supported by the Office of Naval Research Ocean Acoustics
Program Code (322).
NR 15
TC 0
Z9 0
U1 0
U2 4
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 OCT
PY 2013
VL 134
IS 4
BP 3116
EP 3118
DI 10.1121/1.4818778
PG 3
WC Acoustics; Audiology & Speech-Language Pathology
SC Acoustics; Audiology & Speech-Language Pathology
GA 295MH
UT WOS:000330119700063
PM 24116509
ER
PT J
AU Colosi, JA
Chandrayadula, TK
Voronovich, AG
Ostashev, VE
AF Colosi, John A.
Chandrayadula, Tarun K.
Voronovich, Alexander G.
Ostashev, Vladimir E.
TI Coupled mode transport theory for sound transmission through an ocean
with random sound speed perturbations: Coherence in deep water
environments
SO JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
LA English
DT Article
ID NORTH PACIFIC-OCEAN; ACOUSTIC PROPAGATION; SHALLOW-WATER; LONG-RANGE;
TEMPORAL COHERENCE; WAVE-PROPAGATION; INTERNAL WAVES; RANDOM-MEDIA;
FLUCTUATIONS; INTENSITY
AB Second moments of mode amplitudes at fixed frequency as a function of separations in mode number, time, and horizontal distance are investigated using mode-based transport equations and Monte Carlo simulation. These second moments are used to study full-field acoustic coherence, including depth separations. Calculations for low-order modes between 50 and 250 Hz are presented using a deep-water Philippine Sea environment. Comparisons between Monte Carlo simulations and transport theory for time and depth coherence at frequencies of 75 and 250 Hz and for ranges up to 500 km show good agreement. The theory is used to examine the accuracy of the adiabatic and quadratic lag approximations, and the range and frequency scaling of coherence. It is found that while temporal coherence has a dominant adiabatic component, horizontal and vertical coherence have more equal contributions from coupling and adiabatic effects. In addition, the quadratic lag approximation is shown to be most accurate at higher frequencies and longer ranges. Last the range and frequency scalings are found to be sensitive to the functional form of the exponential decay of coherence with lag, but temporal and horizontal coherence show scalings that fall quite close to the well-known inverse frequency and inverse square root range laws.
C1 [Colosi, John A.; Chandrayadula, Tarun K.] Naval Postgrad Sch, Dept Oceanog, Monterey, CA 93943 USA.
[Voronovich, Alexander G.; Ostashev, Vladimir E.] NOAA, Earth Syst Res Lab, Boulder, CO 80303 USA.
RP Colosi, JA (reprint author), Naval Postgrad Sch, Dept Oceanog, Monterey, CA 93943 USA.
EM jacolosi@nps.edu
FU Office of Naval Research [322]
FX This work was supported by the Office of Naval Research Ocean Acoustics
Program Code (322).
NR 30
TC 6
Z9 9
U1 1
U2 3
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 OCT
PY 2013
VL 134
IS 4
BP 3119
EP 3133
DI 10.1121/1.4818779
PG 15
WC Acoustics; Audiology & Speech-Language Pathology
SC Acoustics; Audiology & Speech-Language Pathology
GA 295MH
UT WOS:000330119700064
PM 24116510
ER
PT J
AU Chandrayadula, TK
Colosi, JA
Worcester, PF
Dzieciuch, MA
Mercer, JA
Andrew, RK
Howe, BM
AF Chandrayadula, Tarun K.
Colosi, John A.
Worcester, Peter F.
Dzieciuch, Matthew A.
Mercer, James A.
Andrew, Rex K.
Howe, Bruce M.
TI Observations and transport theory analysis of low frequency, acoustic
mode propagation in the Eastern North Pacific Ocean
SO JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
LA English
DT Article
ID SHALLOW-WATER; TEMPORAL COHERENCE; INTERNAL WAVES; STATISTICS;
AMPLITUDES; RANGE; INTENSITY
AB Second order mode statistics as a function of range and source depth are presented from the Long Range Ocean Acoustic Propagation EXperiment (LOAPEX). During LOAPEX, low frequency broadband signals were transmitted from a ship-suspended source to a mode-resolving vertical line array. Over a one-month period, the ship occupied seven stations from 50 km to 3200 km distance from the receiver. At each station broadband transmissions were performed at a near-axial depth of 800 m and an off-axial depth of 350 m. Center frequencies at these two depths were 75 Hz and 68 Hz, respectively. Estimates of observed mean mode energy, cross mode coherence, and temporal coherence are compared with predictions from modal transport theory, utilizing the Garrett-Munk internal wave spectrum. In estimating the acoustic observables, there were challenges including low signal to noise ratio, corrections for source motion, and small sample sizes. The experimental observations agree with theoretical predictions within experimental uncertainty. (C) 2013 Acoustical Society of America.
C1 [Chandrayadula, Tarun K.; Colosi, John A.] Naval Postgrad Sch, Monterey, CA 93943 USA.
[Worcester, Peter F.; Dzieciuch, Matthew A.] Univ Calif San Diego, Scripps Inst Oceanog, San Diego, CA 92093 USA.
[Mercer, James A.; Andrew, Rex K.] Univ Washington, Appl Phys Lab, Seattle, WA 98195 USA.
[Howe, Bruce M.] Univ Hawaii Manoa, Honolulu, HI 96822 USA.
RP Chandrayadula, TK (reprint author), Naval Postgrad Sch, Monterey, CA 93943 USA.
EM cptarun@gmail.com
RI Howe, Bruce/J-2807-2012
OI Howe, Bruce/0000-0001-5711-5253
FU National Research Council Research Associateship Award; Office of Naval
Research Postdoctoral Fellowship Award
FX This project was sponsored by the National Research Council Research
Associateship Award and the Office of Naval Research Postdoctoral
Fellowship Award.
NR 34
TC 2
Z9 2
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
EI 1520-8524
J9 J ACOUST SOC AM
JI J. Acoust. Soc. Am.
PD OCT
PY 2013
VL 134
IS 4
BP 3144
EP 3160
DI 10.1121/1.4818883
PG 17
WC Acoustics; Audiology & Speech-Language Pathology
SC Acoustics; Audiology & Speech-Language Pathology
GA 295MH
UT WOS:000330119700066
PM 24116512
ER
PT J
AU Colosi, JA
Van Uffelen, LJ
Cornuelle, BD
Dzieciuch, MA
Worcester, PF
Dushaw, BD
Ramp, SR
AF Colosi, John A.
Van Uffelen, Lora J.
Cornuelle, Bruce D.
Dzieciuch, Matthew A.
Worcester, Peter F.
Dushaw, Brian D.
Ramp, Steven R.
TI Observations of sound-speed fluctuations in the western Philippine Sea
in the spring of 2009
SO JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
LA English
DT Article
ID INTERNAL WAVE SPECTRUM; OCEAN MESOSCALE; PROPAGATION; TIDES
AB As an aid to understanding long-range acoustic propagation in the Philippine Sea, statistical and phenomenological descriptions of sound-speed variations were developed. Two moorings of oceanographic sensors located in the western Philippine Sea in the spring of 2009 were used to track constant potential-density surfaces (isopycnals) and constant potential-temperature surfaces (isotherms) in the depth range 120-2000 m. The vertical displacements of these surfaces are used to estimate sound-speed fluctuations from internal waves, while temperature/salinity variability along isopycnals are used to estimate sound-speed fluctuations from intrusive structure often termed spice. Frequency spectra and vertical covariance functions are used to describe the space-time scales of the displacements and spiciness. Internal-wave contributions from diurnal and semi-diurnal internal tides and the diffuse internal-wave field [related to the Garrett-Munk (GM) spectrum] are found to dominate the sound-speed variability. Spice fluctuations are weak in comparison. The internal wave and spice frequency spectra have similar form in the upper ocean but are markedly different below 170-m depth. Diffuse internal-wave mode spectra show a form similar to the GM model, while internal-tide mode spectra scale as mode number to the minus two power. Spice decorrelates rapidly with depth, with a typical correlation scale of tens of meters.
C1 [Colosi, John A.] Naval Postgrad Sch, Dept Oceanog, Monterey, CA 93943 USA.
[Van Uffelen, Lora J.] Univ Hawaii, Dept Ocean & Resources Engn, Honolulu, HI 96822 USA.
[Cornuelle, Bruce D.; Dzieciuch, Matthew A.; Worcester, Peter F.] Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92037 USA.
[Dushaw, Brian D.] Univ Washington, Appl Phys Lab, Seattle, WA 98105 USA.
[Ramp, Steven R.] Soliton Ocean Serv Inc, Carmel, CA 93921 USA.
RP Colosi, JA (reprint author), Naval Postgrad Sch, Dept Oceanog, Monterey, CA 93943 USA.
EM jacolosi@nps.edu
OI Cornuelle, Bruce/0000-0003-2110-3319
FU Office of Naval Research
FX This work was supported by the Office of Naval Research.
NR 32
TC 7
Z9 7
U1 0
U2 5
PU ACOUSTICAL SOC AMER AMER INST PHYSICS
PI MELVILLE
PA STE 1 NO 1, 2 HUNTINGTON QUADRANGLE, MELVILLE, NY 11747-4502 USA
SN 0001-4966
EI 1520-8524
J9 J ACOUST SOC AM
JI J. Acoust. Soc. Am.
PD OCT
PY 2013
VL 134
IS 4
BP 3185
EP 3200
DI 10.1121/1.4818784
PG 16
WC Acoustics; Audiology & Speech-Language Pathology
SC Acoustics; Audiology & Speech-Language Pathology
GA 295MH
UT WOS:000330119700069
PM 24116515
ER
PT J
AU Stephen, RA
Bolmer, ST
Udovydchenkov, IA
Worcester, PF
Dzieciuch, MA
Andrew, RK
Mercer, JA
Colosi, JA
Howe, BM
AF Stephen, Ralph A.
Bolmer, S. Thompson
Udovydchenkov, Ilya A.
Worcester, Peter F.
Dzieciuch, Matthew A.
Andrew, Rex K.
Mercer, James A.
Colosi, John A.
Howe, Bruce M.
TI Deep seafloor arrivals in long range ocean acoustic propagation
SO JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
LA English
DT Article
ID MID-ATLANTIC RIDGE; NORTHEAST PACIFIC; SCATTERING; WAVE; EARTHQUAKES;
SIGNALS; ENERGY
AB Ocean bottom seismometer observations at 5000 m depth during the long-range ocean acoustic propagation experiment in the North Pacific in 2004 show robust, coherent, late arrivals that are not readily explained by ocean acoustic propagation models. These "deep seafloor" arrivals are the largest amplitude arrivals on the vertical particle velocity channel for ranges from 500 to 3200 km. The travel times for six (of 16 observed) deep seafloor arrivals correspond to the sea surface reflection of an out-of-plane diffraction from a seamount that protrudes to about 4100 m depth and is about 18 km from the receivers. This out-of-plane bottom-diffracted surface-reflected energy is observed on the deep vertical line array about 35 dB below the peak amplitude arrivals and was previously misinterpreted as in-plane bottom-reflected surface-reflected energy. The structure of these arrivals from 500 to 3200 km range is remarkably robust. The bottom-diffracted surface-reflected mechanism provides a means for acoustic signals and noise from distant sources to appear with significant strength on the deep seafloor. (C) 2013 Acoustical Society of America.
C1 [Stephen, Ralph A.; Bolmer, S. Thompson] Woods Hole Oceanog Inst, Dept Geol & Geophys, Woods Hole, MA 02543 USA.
[Udovydchenkov, Ilya A.] Woods Hole Oceanog Inst, Dept Appl Ocean Phys & Engn, Woods Hole, MA 02543 USA.
[Worcester, Peter F.; Dzieciuch, Matthew A.] Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92093 USA.
[Andrew, Rex K.; Mercer, James A.] Univ Washington, Appl Phys Lab, Seattle, WA 98105 USA.
[Colosi, John A.] Naval Postgrad Sch, Dept Oceanog, Monterey, CA 93943 USA.
[Howe, Bruce M.] Univ Hawaii Manoa, Dept Ocean & Resources Engn, Honolulu, HI 96822 USA.
RP Stephen, RA (reprint author), Woods Hole Oceanog Inst, Dept Geol & Geophys, 360 Woods Hole Rd, Woods Hole, MA 02543 USA.
EM rstephen@whoi.edu
RI Howe, Bruce/J-2807-2012;
OI Howe, Bruce/0000-0001-5711-5253; Stephen, Ralph/0000-0003-0937-2049
FU National Science Foundation; Woods Hole Oceanographic Institution under
WHOI Deep Ocean Exploration Institute; Office of Naval Research
[N00014-03-1-0181, N00014-03-1-0182, N00014-06-1-0222, N00014-10-1-0510]
FX The idea to deploy OBSs on the 2004 LOAPEX experiment was conceived at a
workshop held at Woods Hole in March 2004 (Odom and Stephen, 2004). The
OBS/Hs used in the LOAPEX field program were provided by Scripps
Institution of Oceanography under the U.S. National Ocean Bottom Seismic
Instrumentation Pool (SIO-OBSIP, http://www.obsip.org). The OBS/H
deployments themselves were co-funded through direct funding to
SIO-OBSIP by the National Science Foundation and by Woods Hole
Oceanographic Institution under a grant from the WHOI Deep Ocean
Exploration Institute. The OBS/H data are archived at the Incorporated
Research Institutions for Seismology (IRIS) Data Management Center.
Figures 1 and 5 were prepared using the Generic Mapping Tool
(http://gmt.soest.hawaii.edu/) (Wessel and Smith, 1998). The LOAPEX
source deployments and the moored DVLA receiver deployments were funded
by the Office of Naval Research under Award Nos. N00014-03-1-0181 and
N00014-03-1-0182. The data reduction and analysis in this paper were
funded by the Office of Naval Research under Award Nos. N00014-06-1-0222
and N00014-10-1-0510. Additional post-cruise analysis support was
provided to RAS through the Edward W. and Betty J. Scripps Chair for
Excellence in Oceanography. We greatly appreciate the many useful and
insightful comments of two anonymous reviewers.
NR 34
TC 2
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U1 0
U2 3
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 OCT
PY 2013
VL 134
IS 4
BP 3307
EP 3317
DI 10.1121/1.4818845
PG 11
WC Acoustics; Audiology & Speech-Language Pathology
SC Acoustics; Audiology & Speech-Language Pathology
GA 295MH
UT WOS:000330119700079
PM 24116525
ER
PT J
AU Chandrayadula, TK
Wage, KE
Worcester, PF
Dzieciuch, MA
Mercer, JA
Andrew, RK
Howe, BM
AF Chandrayadula, Tarun K.
Wage, Kathleen E.
Worcester, Peter F.
Dzieciuch, Matthew A.
Mercer, James A.
Andrew, Rex K.
Howe, Bruce M.
TI Reduced rank models for travel time estimation of low order mode pulses
SO JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
LA English
DT Article
ID SHADOW-ZONE ARRIVALS; NORTH PACIFIC-OCEAN; ACOUSTIC PROPAGATION;
INTERNAL WAVES; LONG-RANGE; STATISTICS; AMPLITUDES; COHERENCE; FIELDS
AB Mode travel time estimation in the presence of internal waves (IWs) is a challenging problem. IWs perturb the sound speed, which results in travel time wander and mode scattering. A standard approach to travel time estimation is to pulse compress the broadband signal, pick the peak of the compressed time series, and average the peak time over multiple receptions to reduce variance. The peak-picking approach implicitly assumes there is a single strong arrival and does not perform well when there are multiple arrivals due to scattering. This article presents a statistical model for the scattered mode arrivals and uses the model to design improved travel time estimators. The model is based on an Empirical Orthogonal Function (EOF) analysis of the mode time series. Range-dependent simulations and data from the Long-range Ocean Acoustic Propagation Experiment (LOAPEX) indicate that the modes are represented by a small number of EOFs. The reduced-rank EOF model is used to construct a travel time estimator based on the Matched Subspace Detector (MSD). Analysis of simulation and experimental data show that the MSDs are more robust to IW scattering than peak picking. The simulation analysis also highlights how IWs affect the mode excitation by the source. (C) 2013 Acoustical Society of America.
C1 [Chandrayadula, Tarun K.] Naval Postgrad Sch, Dept Oceanog, Monterey, CA 93943 USA.
[Wage, Kathleen E.] George Mason Univ, Elect & Comp Engn Dept, Fairfax, VA 22030 USA.
[Worcester, Peter F.; Dzieciuch, Matthew A.] Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92093 USA.
[Mercer, James A.; Andrew, Rex K.] Univ Washington, Appl Phys Lab, Seattle, WA 98105 USA.
[Howe, Bruce M.] Univ Hawaii Manoa, Ocean & Resources Engn Dept, Honolulu, HI 96816 USA.
RP Chandrayadula, TK (reprint author), Naval Postgrad Sch, Dept Oceanog, 833 Dyer Rd, Monterey, CA 93943 USA.
EM cptarun@gmail.com
RI Howe, Bruce/J-2807-2012
OI Howe, Bruce/0000-0001-5711-5253
FU Office of Naval Research (ONR) [N00014-03-1-0181, N00014-03-1-0182]; ONR
Graduate Traineeship Award [N00014-06-1-0223]; National Research Council
Research Associateship Award; ONR Award [N00014-12-1-0412]
FX LOAPEX was funded by Office of Naval Research (ONR) grants
N00014-03-1-0181 and N00014-03-1-0182. TKC was supported by an ONR
Graduate Traineeship Award N00014-06-1-0223 and a National Research
Council Research Associateship Award. KEW was supported by ONR Award
N00014-12-1-0412.
NR 32
TC 0
Z9 0
U1 0
U2 3
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 OCT
PY 2013
VL 134
IS 4
BP 3332
EP 3346
DI 10.1121/1.4818847
PG 15
WC Acoustics; Audiology & Speech-Language Pathology
SC Acoustics; Audiology & Speech-Language Pathology
GA 295MH
UT WOS:000330119700081
PM 24116527
ER
PT J
AU White, AW
Andrew, RK
Mercer, JA
Worcester, PF
Dzieciuch, MA
Colosi, JA
AF White, Andrew W.
Andrew, Rex K.
Mercer, James A.
Worcester, Peter F.
Dzieciuch, Matthew A.
Colosi, John A.
TI Wavefront intensity statistics for 284-Hz broadband transmissions to
107-km range in the Philippine Sea: Observations and modeling
SO JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
LA English
DT Article
ID NORTH PACIFIC-OCEAN; ACOUSTIC TRANSMISSION; FLUCTUATIONS; PROPAGATION;
SIMULATION; FREQUENCY; SPECTRUM; SOUND
AB In the spring of 2009, broadband transmissions from a ship-suspended source with a 284-Hz center frequency were received on a moored and navigated vertical array of hydrophones over a range of 107 km in the Philippine Sea. During a 60-h period over 19 000 transmissions were carried out. The observed wavefront arrival structure reveals four distinct purely refracted acoustic paths: One with a single upper turning point near 80 m depth, two with a pair of upper turning points at a depth of roughly 300 m, and one with three upper turning points at 420 m. Individual path intensity, defined as the absolute square of the center frequency Fourier component for that arrival, was estimated over the 60-h duration and used to compute scintillation index and log-intensity variance. Monte Carlo parabolic equation simulations using internal-wave induced sound speed perturbations obeying the Garrett-Munk internal-wave energy spectrum were in agreement with measured data for the three deeper-turning paths but differed by as much as a factor of four for the near surface-interacting path. (C) 2013 Acoustical Society of America.
C1 [White, Andrew W.] Univ Washington, Dept Earth & Space Sci, Seattle, WA 98105 USA.
[Andrew, Rex K.; Mercer, James A.] Univ Washington, Appl Phys Lab, Seattle, WA 98105 USA.
[Worcester, Peter F.; Dzieciuch, Matthew A.] Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92093 USA.
[Colosi, John A.] Naval Postgrad Sch, Dept Oceanog, Monterey, CA 93943 USA.
RP White, AW (reprint author), Univ Washington, Dept Earth & Space Sci, Seattle, WA 98105 USA.
EM andrew8@apl.washington.edu
FU Long Range/Deep Water Propagation thrust area of the Ocean Acoustics
Program at the Office of Naval Research under APL/UW [N00014-08-1-0843,
N00014-08-1-0200]; Scripps Institution of Oceanography
[N00014-08-1-0840]; Naval Postgraduate School [N00014-11-WR20115]
FX This work was supported by the the Long Range/Deep Water Propagation
thrust area of the Ocean Acoustics Program at the Office of Naval
Research under APL/UW Grant Nos. N00014-08-1-0843 and N00014-08-1-0200,
Scripps Institution of Oceanography Grant No. N00014-08-1-0840, and
Naval Postgraduate School Grant No. N00014-11-WR20115.
NR 38
TC 5
Z9 5
U1 0
U2 0
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 OCT
PY 2013
VL 134
IS 4
BP 3347
EP 3358
DI 10.1121/1.4818886
PG 12
WC Acoustics; Audiology & Speech-Language Pathology
SC Acoustics; Audiology & Speech-Language Pathology
GA 295MH
UT WOS:000330119700082
PM 24116528
ER
PT J
AU Worcester, PF
Dzieciuch, MA
Mercer, JA
Andrew, RK
Dushaw, BD
Baggeroer, AB
Heaney, KD
D'Spain, GL
Colosi, JA
Stephen, RA
Kemp, JN
Howe, BM
Van Uffelen, LJ
Wage, KE
AF Worcester, Peter F.
Dzieciuch, Matthew A.
Mercer, James A.
Andrew, Rex K.
Dushaw, Brian D.
Baggeroer, Arthur B.
Heaney, Kevin D.
D'Spain, Gerald L.
Colosi, John A.
Stephen, Ralph A.
Kemp, John N.
Howe, Bruce M.
Van Uffelen, Lora J.
Wage, Kathleen E.
TI The North Pacific Acoustic Laboratory deep-water acoustic propagation
experiments in the Philippine Sea
SO JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
LA English
DT Article
ID SHADOW-ZONE ARRIVALS; SUBTROPICAL COUNTERCURRENT; LONG-RANGE;
PALEOGEOGRAPHIC RECONSTRUCTION; EDDY FIELD; OCEAN; VARIABILITY; ORIGIN;
TIDES
AB A series of experiments conducted in the Philippine Sea during 2009-2011 investigated deep-water acoustic propagation and ambient noise in this oceanographically and geologically complex region: (i) the 2009 North Pacific Acoustic Laboratory (NPAL) Pilot Study/Engineering Test, (ii) the 2010-2011 NPAL Philippine Sea Experiment, and (iii) the Ocean Bottom Seismometer Augmentation of the 2010-2011 NPAL Philippine Sea Experiment. The experimental goals included (a) understanding the impacts of fronts, eddies, and internal tides on acoustic propagation, (b) determining whether acoustic methods, together with other measurements and ocean modeling, can yield estimates of the time-evolving ocean state useful for making improved acoustic predictions, (c) improving our understanding of the physics of scattering by internal waves and spice, (d) characterizing the depth dependence and temporal variability of ambient noise, and (e) understanding the relationship between the acoustic field in the water column and the seismic field in the seafloor. In these experiments, moored and ship-suspended low-frequency acoustic sources transmitted to a newly developed distributed vertical line array receiver capable of spanning the water column in the deep ocean. The acoustic transmissions and ambient noise were also recorded by a towed hydrophone array, by acoustic Seagliders, and by ocean bottom seismometers. (C) 2013 Acoustical Society of America.
C1 [Worcester, Peter F.; Dzieciuch, Matthew A.] Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92093 USA.
[Mercer, James A.; Andrew, Rex K.; Dushaw, Brian D.] Univ Washington, Appl Phys Lab, Seattle, WA 98105 USA.
[Baggeroer, Arthur B.] MIT, Cambridge, MA 02139 USA.
[Heaney, Kevin D.] OASIS Inc, Fairfax Stn, VA 22039 USA.
[D'Spain, Gerald L.] Univ Calif San Diego, Scripps Inst Oceanog, Marine Phys Lab, La Jolla, CA 92093 USA.
[Colosi, John A.] Naval Postgrad Sch, Monterey, CA 93943 USA.
[Stephen, Ralph A.; Kemp, John N.] Woods Hole Oceanog Inst, Woods Hole, MA 02543 USA.
[Howe, Bruce M.; Van Uffelen, Lora J.] Univ Hawaii Manoa, Honolulu, HI 96822 USA.
[Wage, Kathleen E.] George Mason Univ, Fairfax, VA 22030 USA.
RP Worcester, PF (reprint author), Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92093 USA.
EM pworcester@ucsd.edu
RI Howe, Bruce/J-2807-2012;
OI Howe, Bruce/0000-0001-5711-5253; Stephen, Ralph/0000-0003-0937-2049
FU Office of Naval Research
FX The success of the NPAL series of Philippine Sea experiments is the
result of the efforts of many people, including the Captains and crews
of the R/V Kilo Moana, R/V Melville, and R/V Roger Revelle and
individuals at the Applied Physics Laboratory of the University of
Washington (B. Bell, E. Boget, R. Bolstad, C. Fletcher, A. Ganse, L.
Gullings, F. Karig, T. McGinnis, S. McPeak, J. Sellschopp, T. Wen, and
A. White), the Naval Postgraduate School (C. Miller, M. Stone, and K.
Wycoff), OASIS, Inc. (R. Campbell and J. Murray), Scripps Institution of
Oceanography (E. Aaron, B. Moskovitz, S. Carey, L. Green, D. Horwitt, S.
Lynch, S. McPeak, M. Norenberg, and K. Scott), University of Hawaii (G.
Carter, L. Fujieki, J. Mowatt, E. Nosal, and S. Poulos), and Woods Hole
Oceanographic Institution (S. T. Bolmer, J. Dunn, K. Newhall, and J.
Ryder). The Ocean Bottom Seismometers used in the OBSAPS experiment were
provided by the Scripps Institution of Oceanography as part of the U. S.
National Ocean Bottom Seismograph Instrument Pool (OBSIP). T. Bolmer
(WHOI) assisted with the figures. This paper is based upon work
supported by the Office of Naval Research Ocean Acoustics and Undersea
Signal Processing programs.
NR 56
TC 12
Z9 13
U1 0
U2 11
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 OCT
PY 2013
VL 134
IS 4
BP 3359
EP 3375
DI 10.1121/1.4818887
PG 17
WC Acoustics; Audiology & Speech-Language Pathology
SC Acoustics; Audiology & Speech-Language Pathology
GA 295MH
UT WOS:000330119700083
PM 24116529
ER
PT J
AU Udovydchenkov, IA
Brown, MG
Duda, TF
Worcester, PF
Dzieciuch, MA
Mercer, JA
Andrew, RK
Howe, BM
Colosi, JA
AF Udovydchenkov, Ilya A.
Brown, Michael G.
Duda, Timothy F.
Worcester, Peter F.
Dzieciuch, Matthew A.
Mercer, James A.
Andrew, Rex K.
Howe, Bruce M.
Colosi, John A.
TI Weakly dispersive modal pulse propagation in the North Pacific Ocean
SO JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
LA English
DT Article
AB The propagation of weakly dispersive modal pulses is investigated using data collected during the 2004 long-range ocean acoustic propagation experiment (LOAPEX). Weakly dispersive modal pulses are characterized by weak dispersion-and scattering-induced pulse broadening; such modal pulses experience minimal propagation-induced distortion and are thus well suited to communications applications. In the LOAPEX environment modes 1, 2, and 3 are approximately weakly dispersive. Using LOAPEX observations it is shown that, by extracting the energy carried by a weakly dispersive modal pulse, a transmitted communications signal can be recovered without performing channel equalization at ranges as long as 500 km; at that range a majority of mode 1 receptions have bit error rates (BERs) less than 10%, and 6.5% of mode 1 receptions have no errors. BERs are estimated for low order modes and compared with measurements of signal-to-noise ratio (SNR) and modal pulse spread. Generally, it is observed that larger modal pulse spread and lower SNR result in larger BERs. (C) 2013 Acoustical Society of America.
C1 [Udovydchenkov, Ilya A.; Duda, Timothy F.] Woods Hole Oceanog Inst, Dept Appl Ocean Phys & Engn, Woods Hole, MA 02543 USA.
[Brown, Michael G.] Univ Miami, Rosenstiel Sch Marine & Atmospher Sci, Miami, FL 33149 USA.
[Worcester, Peter F.; Dzieciuch, Matthew A.] Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92093 USA.
[Mercer, James A.; Andrew, Rex K.] Univ Washington, Appl Phys Lab, Seattle, WA 98105 USA.
[Howe, Bruce M.] Univ Hawaii Manoa, Dept Ocean & Resources Engn, Honolulu, HI 96822 USA.
[Colosi, John A.] Naval Postgrad Sch, Dept Oceanog, Monterey, CA 93943 USA.
RP Udovydchenkov, IA (reprint author), Woods Hole Oceanog Inst, Dept Appl Ocean Phys & Engn, Woods Hole, MA 02543 USA.
EM ilya@whoi.edu
RI Duda, Timothy/A-7282-2010; Howe, Bruce/J-2807-2012
OI Duda, Timothy/0000-0002-5797-5955; Howe, Bruce/0000-0001-5711-5253
FU Office of Naval Research [322, N00014-06-1-0245, N00014-08-1-0195,
N00014-11-1-0194]
FX This work was supported by the Office of Naval Research, Code 322, Grant
Nos. N00014-06-1-0245, N00014-08-1-0195, and N00014-11-1-0194.
NR 13
TC 0
Z9 0
U1 0
U2 3
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 OCT
PY 2013
VL 134
IS 4
BP 3386
EP 3394
DI 10.1121/1.4820882
PG 9
WC Acoustics; Audiology & Speech-Language Pathology
SC Acoustics; Audiology & Speech-Language Pathology
GA 295MH
UT WOS:000330119700085
PM 24116531
ER
PT J
AU Jain, V
Kushto, GP
Wolak, M
Makinen, AJ
AF Jain, Vaibhav
Kushto, Gary P.
Wolak, Mason
Maekinen, Antti J.
TI Electrical contact fabrication on vertically aligned ZnO nanowires
investigated by current sensing AFM
SO PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE
LA English
DT Article
DE atomic force microscopy; I-V characteristics; metal-semiconductor
contacts; nanowires; Ohmic contacts; ZnO
ID SCHOTTKY CONTACTS; NANORODS
AB We present a simple method for generating vertically aligned (VA) ZnO nanowire (NW) arrays with tailored electrical top contacts, suitable for photodetector and photovoltaic applications. ZnO NWs were synthesized on Si substrate in house using a hydro-thermal method, producing dense and highly organized vertical ZnO NW (approximate to 50-100nm) arrays. The vertical geometry of the NW arrays facilitated further processing of the NW structures and streamlined in situ characterization of individual NWs as well as entire NW ensembles. The top contact metallization involved depositing a thin film of low work function metals such as aluminum (5nm) followed by a thin film of gold (15nm) onto NW arrays, partially embedded in an insulating silsesquioxane-based material (SOG-400F). The I-V characteristics of individual ZnO NWs were measured using current sensing atomic force microscopy (CS-AFM). Compared with arrays of as-grown ZnO NWs, the metalized top contacts of NWs resulted in improved I-V characteristics with good Ohmic behavior at the metal-semiconductor contact (MSC).
C1 [Jain, Vaibhav; Kushto, Gary P.; Wolak, Mason; Maekinen, Antti J.] Naval Res Lab, Opt Sci Div, Washington, DC 20375 USA.
RP Jain, V (reprint author), Naval Res Lab, Opt Sci Div, Code 5611, Washington, DC 20375 USA.
EM vaibhav.jain@nrl.navy.mil
FU National Research Council (NRC) post-doctoral fellowship at NRL
FX V. J. acknowledges the National Research Council (NRC) post-doctoral
fellowship at NRL
NR 24
TC 3
Z9 3
U1 2
U2 29
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA BOSCHSTRASSE 12, D-69469 WEINHEIM, GERMANY
SN 1862-6300
EI 1862-6319
J9 PHYS STATUS SOLIDI A
JI Phys. Status Solidi A-Appl. Mat.
PD OCT
PY 2013
VL 210
IS 10
BP 2153
EP 2158
DI 10.1002/pssa.201228813
PG 6
WC Materials Science, Multidisciplinary; Physics, Applied; Physics,
Condensed Matter
SC Materials Science; Physics
GA 284EU
UT WOS:000329299700034
ER
PT J
AU Grams, CM
Jones, SC
Davis, CA
Harr, PA
Weissmann, M
AF Grams, Christian M.
Jones, Sarah C.
Davis, Christopher A.
Harr, Patrick A.
Weissmann, Martin
TI The impact of Typhoon Jangmi (2008) on the midlatitude flow. Part I:
Upper-level ridgebuilding and modification of the jet
SO QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY
LA English
DT Article
DE extratropical transition; T-PARC; midlatitude jet; diabatic processes;
PV inversion; outflow; baroclinic zone; COSMO; potential vorticity;
tropical cyclone
ID WESTERN NORTH PACIFIC; CONDITIONAL SYMMETRIC INSTABILITY;
LAGRANGIAN-BASED ANALYSIS; EXTRATROPICAL TRANSITION; TROPICAL CYCLONES;
TRANSFORMATION STAGE; CYCLOGENESIS; SIMULATIONS; MODEL; LIDAR
AB This study identifies the key physical process that governs the direct impact of the extratropical transition (ET) of Typhoon Jangmi on the midlatitude flow in September 2008. Jangmi was the strongest tropical cyclone (TC) in the western North Pacific in 2008 and occurred during the THORPEX Pacific Asian Regional Campaign (T-PARC). A distinct outflow-jet interaction resulted in ridgebuilding directly downstream of the ET system and a strongly accelerated upper-level jet streak over Japan. A combination of model and observational data is used to investigate the interaction of the transforming TC with the midlatitude flow and a potential vorticity (PV) surgery technique based on PV inversion is developed to further quantify the contribution of the TC to the modification of the midlatitude flow during ET. The joint interaction of the TC circulation with the midlatitude baroclinic zone and of the TC outflow with the upper-level jet is found to be responsible for a substantial diabatically enhanced vertical transport of lower tropospheric air that arrives at jet level with nearly zero PV. This process explains the ridgebuilding and evolution of the jet streak to the northeast of the ET system. The quantification of Jangmi's role in the outflow-jet interaction revealed the diabatic reduction and isentropic transport of upper-tropospheric PV into the jet region as the key physical process responsible for the direct impact of ET. This is manifested in a ridgebuilding with upper-level PV being 6 PVU lower and a midlatitude jet streak being at least 25 m s(-1) faster in the presence of Jangmi. The study corroborates the crucial role that ET has on the modification of the midlatitude flow directly downstream of a transforming TC. The remote, downstream impact of the ET of Jangmi is investigated in a companion paper.
C1 [Grams, Christian M.; Jones, Sarah C.] Karlsruhe Inst Technol, Inst Meteorol & Climate Res IMK TRO, D-76021 Karlsruhe, Germany.
[Grams, Christian M.] Swiss Fed Inst Technol, Inst Atmospher & Climate Sci, CH-8092 Zurich, Switzerland.
[Jones, Sarah C.] Deutsch Wetterdienst, Offenbach, Germany.
[Davis, Christopher A.] Natl Ctr Atmospher Res, Mesoscale & Microscale Div, Boulder, CO 80307 USA.
[Harr, Patrick A.] Naval Postgrad Sch, Dept Meteorol, Monterey, CA USA.
[Weissmann, Martin] Deutsch Zentrum Luft & Raumfahrt, Inst Phys Atmosphare, Oberpfaffenhofen, Germany.
[Weissmann, Martin] Univ Munich, Hans Ertel Ctr Weather Res, Munich, Germany.
RP Grams, CM (reprint author), Swiss Fed Inst Technol, Inst Atmospher & Climate Sci, Univ Str 16, CH-8092 Zurich, Switzerland.
EM christian.grams@env.ethz.ch
RI Weissmann, Martin/C-9084-2013; Grams, Christian/E-5331-2016
OI Grams, Christian/0000-0003-3466-9389
FU German Research Foundation (DFG) as part of the research unit PANDOWAE
[FOR896]; National Science Foundation [ATM-0736003]; Karlsruhe House of
Young Scientists (KHYS) at KIT; Office for Naval Research; US National
Science Foundation (NSF); Office of Naval Research
FX This project was supported by the German Research Foundation (DFG) as
part of the research unit PANDOWAE (FOR896). The National Science
Foundation supported the contribution of Patrick Harr under grant
ATM-0736003. We acknowledge the Deutscher Wetterdienst (DWD) for support
with the COSMO model, and for providing access to the ECMWF analysis
data and we thank ECMWF for computing and archive facilities through the
special project ` The impact of tropical cyclones on extratropical
predictability'. The Steinbuch Centre for Computing (SCC) at KIT is
acknowledged for providing access to and support for their
supercomputing facilities. We are grateful to Maxi Bo " ttcher, Heini
Wernli and Jana C. ampa for enabling access to and giving advice for
LAGRANTO. The first author thanks Michael Riemer for support with the PV
inversion and helpful discussions. Travel funding for Christian Grams
from the Karlsruhe House of Young Scientists (KHYS) at KIT and for Sarah
Jones from the Office for Naval Research Global Visiting program
facilitated the collaboration. The DLR Falcon data were collected as
part of the THORPEX Pacific Asian Regional Campaign (T-PARC). In the USA
the primary sponsors of T-PARC are the US National Science Foundation
(NSF) and the Office of Naval Research. The involvement of the
NSF-sponsored National Center for Atmospheric Research (NCAR)
EarthObserving Laboratory (EOL) is acknowledged. The data were provided
from the TPARC Data Archive, which is maintained by NCAR's Earth
Observing Laboratory (EOL). The acquisition of various T-PARC
observations via the T-PARC support page of the Japan Meteorological
Agency (JMA) is acknowledged. The German Aerospace Center (DLR) is
acknowledged for providing Falcon data. Finally, we thank the two
anonymous reviewers for their thorough comments, which helped to
significantly improve the presentation of our results.
NR 34
TC 20
Z9 20
U1 2
U2 15
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0035-9009
EI 1477-870X
J9 Q J ROY METEOR SOC
JI Q. J. R. Meteorol. Soc.
PD OCT
PY 2013
VL 139
IS 677
BP 2148
EP 2164
DI 10.1002/qj.2091
PG 17
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 270VT
UT WOS:000328348000015
ER
PT J
AU Nicholas, A
Finne, T
Jones, H
Herrero, F
Vancil, B
Aalami, D
Galysh, I
Mai, A
Yen, J
AF Nicholas, Andrew
Finne, Ted
Jones, Hollis
Herrero, Fred
Vancil, Bernie
Aalami, Dean
Galysh, Ivan
Mai, Anthony
Yen, James
TI Wind Ion-drift Neutral Composition Suite cathode activation procedure
and current-voltage characteristics
SO RADIATION EFFECTS AND DEFECTS IN SOLIDS
LA English
DT Article
DE ion source; laboratory plasmas; ionospheric plasma; ion-neutral
coupling; thermosphere and ionosphere dynamics; neutral winds;
ion-drifts; temperatures and densities
AB The Wind Ion-drift Neutral Composition Suite (WINCS) uses three BaO thermionic cathodes in three ion sources for its neutral air measurements. The cathode activation procedure, obtained in laboratory measurements on a series of stock WINCS cathodes, ensures optimum cathode emission and life. The procedure begins by heating the cathode to 300-500 degrees C to evolve CO2 and other gaseous products of the binder and the BaCO3; then the cathode temperature is raised to above 900 degrees C for breakdown to BaO and sintering some of the Ba into the tungsten substrate; finally, activation begins by applying a small extraction voltage to the anode in front of the cathode. After activation, the cathode is ready to operate with any selected anode voltage. Electron emission of the WINCS cathodes easily exceeds 1 mA, and the fraction transmitted through the WINCS anodes exceeds 10% as required for WINCS. A maximum electron kinetic energy of about 90 eV was established as safe, also providing optimal ionization efficiency.
C1 [Nicholas, Andrew; Finne, Ted; Galysh, Ivan; Mai, Anthony; Yen, James] Naval Res Lab, Washington, DC USA.
[Jones, Hollis] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Herrero, Fred] Space Syst Res Corp, Alexandria, VA USA.
[Vancil, Bernie] E Beam Corp, Beaverton, OR USA.
[Aalami, Dean] Space Instruments, Irvine, CA USA.
RP Herrero, F (reprint author), Space Syst Res Corp, Alexandria, VA USA.
EM fherrero@thessrc.com
FU Office of Naval Research
FX The authors would like to thank the Office of Naval Research for support
and the Department of Defense Space Test Program for providing the
experiments with access to space.
NR 6
TC 1
Z9 1
U1 0
U2 2
PU TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
SN 1042-0150
EI 1029-4953
J9 RADIAT EFF DEFECT S
JI Radiat. Eff. Defects Solids
PD OCT 1
PY 2013
VL 168
IS 10
SI SI
BP 821
EP 832
DI 10.1080/10420150.2013.826217
PG 12
WC Nuclear Science & Technology; Physics, Fluids & Plasmas; Physics,
Condensed Matter
SC Nuclear Science & Technology; Physics
GA 264HI
UT WOS:000327867200009
ER
PT J
AU Gao, BC
Liu, M
AF Gao, Bo-Cai
Liu, Ming
TI A Fast Smoothing Algorithm for Post-Processing of Surface Reflectance
Spectra Retrieved from Airborne Imaging Spectrometer Data
SO SENSORS
LA English
DT Article
DE remote sensing; sensors; spectroscopy; smoothing; surface reflectance
ID ATMOSPHERIC CORRECTION; AVIRIS
AB Surface reflectance spectra retrieved from remotely sensed hyperspectral imaging data using radiative transfer models often contain residual atmospheric absorption and scattering effects. The reflectance spectra may also contain minor artifacts due to errors in radiometric and spectral calibrations. We have developed a fast smoothing technique for post-processing of retrieved surface reflectance spectra. In the present spectral smoothing technique, model-derived reflectance spectra are first fit using moving filters derived with a cubic spline smoothing algorithm. A common gain curve, which contains minor artifacts in the model-derived reflectance spectra, is then derived. This gain curve is finally applied to all of the reflectance spectra in a scene to obtain the spectrally smoothed surface reflectance spectra. Results from analysis of hyperspectral imaging data collected with the Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) data are given. Comparisons between the smoothed spectra and those derived with the empirical line method are also presented.
C1 [Gao, Bo-Cai] Naval Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
[Liu, Ming] NOAA, Software Branch, Field Syst Operat Ctr, Silver Spring, MD 20910 USA.
RP Gao, BC (reprint author), Naval Res Lab, Remote Sensing Div, Code 7232, Washington, DC 20375 USA.
EM gao@nrl.navy.mil; ming.liu@noaa.gov
FU US Office of Naval Research
FX The authors are grateful to Joseph W. Boardman of Analytical Imaging
Geophysics, Boulder, Colorado for useful discussions, and to Robert O.
Green of Jet Propulsion Laboratory for providing AVIRIS data used in
this study. This research is partially supported by the US Office of
Naval Research.
NR 16
TC 6
Z9 6
U1 2
U2 7
PU MDPI AG
PI BASEL
PA POSTFACH, CH-4005 BASEL, SWITZERLAND
SN 1424-8220
J9 SENSORS-BASEL
JI Sensors
PD OCT
PY 2013
VL 13
IS 10
BP 13879
EP 13891
DI 10.3390/s131013879
PG 13
WC Chemistry, Analytical; Electrochemistry; Instruments & Instrumentation
SC Chemistry; Electrochemistry; Instruments & Instrumentation
GA 274SA
UT WOS:000328625300063
PM 24129022
ER
PT J
AU Yin, M
Kolipaka, A
Woodrum, DA
Glaser, KJ
Romano, AJ
Manduca, A
Talwalkar, JA
Araoz, PA
McGee, KP
Anavekar, NS
Ehman, RL
AF Yin, Meng
Kolipaka, Arunark
Woodrum, David A.
Glaser, Kevin J.
Romano, Anthony J.
Manduca, Armando
Talwalkar, Jayant A.
Araoz, Philip A.
McGee, Kiaran P.
Anavekar, Nandan S.
Ehman, Richard L.
TI Hepatic and Splenic Stiffness Augmentation Assessed With MR Elastography
in an In Vivo Porcine Portal Hypertension Model
SO JOURNAL OF MAGNETIC RESONANCE IMAGING
LA English
DT Article
DE MR elastography; liver; spleen; portal pressure; shear stiffness
ID MAGNETIC-RESONANCE ELASTOGRAPHY; INCREASES LIVER STIFFNESS; TRANSIENT
ELASTOGRAPHY; NONINVASIVE ASSESSMENT; MATRIX ELASTICITY;
VENOUS-PRESSURE; FIBROSIS; DIAGNOSIS; CIRRHOSIS; ACCURACY
AB PurposeTo investigate the influence of portal pressure on the shear stiffness of the liver and spleen in a well-controlled in vivo porcine model with magnetic resonance elastography (MRE). A significant correlation between portal pressure and tissue stiffness could be used to noninvasively assess increased portal venous pressure (portal hypertension), which is a frequent clinical condition caused by cirrhosis of the liver and is responsible for the development of many lethal complications.
Materials and MethodsDuring multiple intraarterial infusions of Dextran-40 in three adult domestic pigs in vivo, 3D abdominal MRE was performed with left ventricle and portal catheters measuring blood pressure simultaneously. Least-squares linear regressions were used to analyze the relationship between tissue stiffness and portal pressure.
ResultsLiver and spleen stiffness have a dynamic component that increases significantly following an increase in portal or left ventricular pressure. Correlation coefficients with the linear regressions between stiffness and pressure exceeded 0.8 in most cases.
ConclusionThe observed stiffness-pressure relationship of the liver and spleen could provide a promising noninvasive method for assessing portal pressure. Using MRE to study the tissue mechanics associated with portal pressure may provide new insights into the natural history and pathophysiology of hepatic diseases and may have significant diagnostic value in the future. J. Magn. Reson. Imaging 2013;38:809-815. (c) 2013 Wiley Periodicals, Inc.
C1 [Yin, Meng; Kolipaka, Arunark; Woodrum, David A.; Glaser, Kevin J.; Manduca, Armando; Araoz, Philip A.; McGee, Kiaran P.; Ehman, Richard L.] Mayo Clin, Dept Radiol, Rochester, MN 55905 USA.
[Romano, Anthony J.] Naval Res Lab, Acoust Div, Washington, DC USA.
[Talwalkar, Jayant A.] Mayo Clin, Div Gastroenterol, Rochester, MN 55905 USA.
[Anavekar, Nandan S.] Mayo Clin, Div Cardiovasc Dis, Rochester, MN 55905 USA.
RP Ehman, RL (reprint author), Mayo Clin, Dept Radiol, Rochester, MN 55905 USA.
EM ehman.richard@mayo.edu
FU National Institutes of Health (NIH) [EB001981]; Mayo Clinic [CR20];
American Heart Association (AHA) [09POST2250081]
FX Contract grant sponsor: National Institutes of Health (NIH); Contract
grant number: EB001981; Contract grant sponsor: Mayo Clinic; Contract
grant number: CR20; Contract grant sponsor: American Heart Association
(AHA); Contract grant number: 09POST2250081.
NR 37
TC 16
Z9 16
U1 1
U2 7
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1053-1807
EI 1522-2586
J9 J MAGN RESON IMAGING
JI J. Magn. Reson. Imaging
PD OCT
PY 2013
VL 38
IS 4
BP 809
EP 815
DI 10.1002/jmri.24049
PG 7
WC Radiology, Nuclear Medicine & Medical Imaging
SC Radiology, Nuclear Medicine & Medical Imaging
GA 269ES
UT WOS:000328224900006
PM 23418135
ER
PT J
AU Wang, KS
Bourke, TL
Hogerheijde, MR
van der Tak, FFS
Benz, AO
Megeath, ST
Wilson, TL
AF Wang, K. -S.
Bourke, T. L.
Hogerheijde, M. R.
van der Tak, F. F. S.
Benz, A. O.
Megeath, S. T.
Wilson, T. L.
TI Dense molecular cocoons in the massive protocluster W3 IRS5: a test case
for models of massive star formation
SO ASTRONOMY & ASTROPHYSICS
LA English
DT Article
DE stars: massive; stars: formation; ISM: kinematics and dynamics; ISM:
individual objects: W3 IRS5
ID YOUNG STELLAR OBJECTS; FORMING REGION; HOT CORES; COLLISIONAL
EXCITATION; SULFUR CHEMISTRY; COMPETITIVE ACCRETION;
INTERSTELLAR-MEDIUM; CHEMICAL VARIATIONS; BEARING MOLECULES;
RADIO-CONTINUUM
AB Context. Two competing models describe the formation of massive stars in objects like the Orion Trapezium. In the turbulent core accretion model, the resulting stellar masses are directly related to the mass distribution of the cloud condensations. In the competitive accretion model, the gravitational potential of the protocluster captures gas from the surrounding cloud for which the individual cluster members compete.
Aims. With high resolution submillimeter observations of the structure, kinematics, and chemistry of the proto-Trapezium cluster W3 IRS5, we aim to determine which mode of star formation dominates.
Methods. We present 354 GHz Submillimeter Array observations at resolutions of 1 0 0 -3 0 0 (1800-5400 AU) of W3 IRS5. The dust continuum traces the compact source structure and masses of the individual cores, while molecular lines of CS, SO, SO2, HCN, H2CS, HNCO, and CH3OH (and isotopologues) reveal the gas kinematics, density, and temperature.
Results. The observations show five emission peaks (SMM1-5). SMM1 and SMM2 contain massive embedded stars (similar to 20 M fi); SMM3-5 are starless or contain low-mass stars (< 8 M fi). The inferred densities are high, similar to 107 cm 3, but the core masses are small, 0 : 2 0 : 6 M fi. The detected molecular emission reveals four di ff erent chemical zones. Abundant (X similar to few 10 7 to 10 6) SO and SO2 are associated with SMM1 and SMM2, indicating active sulfur chemistry. A low abundance (5 similar to 10 8) of CH3OH concentrated on SMM3 /4 suggest the presence of a hot core that is only just turning on, possibly by external feedback from SMM1 /2. The gas kinematics are complex with contributions from a near pole-on outflow traced by CS, SO, and HCN; rotation in SO2, and a jet in vibrationally excited HCN.
Conclusions. The proto-Trapezium cluster W3 IRS5 is an ideal test case to discriminate between models of massive star formation. Either the massive stars accrete locally from their local cores; in this case the small core masses imply that W3 IRS5 is at the very end stages (1000 yr) of infall and accretion, or the stars are accreting from the global collapse of a massive, cluster forming core. We find that the observed masses, densities and line widths observed toward W3 IRS 5 and the surrounding cluster forming core are consistent with the competitive accretion of gas at rates of. M similar to 10 4 M fi yr 1 by the massive young forming stars. Future mapping of the gas kinematics from large to small scales will determine whether large-scale gas inflow occurs and how the cluster members compete to accrete this material.
C1 [Wang, K. -S.; Hogerheijde, M. R.] Leiden Univ, Leiden Observ, NL-2300 RA Leiden, Netherlands.
[Bourke, T. L.] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA.
[van der Tak, F. F. S.] SRON Netherlands Inst Space Res, NL-9712 Groningen, Netherlands.
[van der Tak, F. F. S.] Univ Groningen, Kapteyn Astron Inst, NL-9712 Groningen, Netherlands.
[Benz, A. O.] ETH, Inst Astron, CH-8093 Zurich, Switzerland.
[Megeath, S. T.] Univ Toledo, Ritter Observ, Toledo, OH 43606 USA.
[Wilson, T. L.] Naval Res Lab, Washington, DC 20375 USA.
RP Wang, KS (reprint author), Leiden Univ, Leiden Observ, POB 9513, NL-2300 RA Leiden, Netherlands.
EM kswang@strw.leidenuniv.nl
FU Nederlandse Onderzoekschool voor Astronomie (NOVA)
FX We thank the anonymous referee and the editor Malcolm Walmsley for
reviewing our paper. We also thank the SMA staff for conducting our
observations. The research of K.-S.W. at Leiden Observatory is supported
through a Ph.D. grant from the Nederlandse Onderzoekschool voor
Astronomie (NOVA). This research has made use of NASA's Astrophysics
Data System Bibliographic Services.
NR 63
TC 5
Z9 5
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
EI 1432-0746
J9 ASTRON ASTROPHYS
JI Astron. Astrophys.
PD OCT
PY 2013
VL 558
AR A69
DI 10.1051/0004-6361/201322087
PG 16
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 246XF
UT WOS:000326574000069
ER
PT J
AU Koytcheff, R
Munson, BA
Volic, I
AF Koytcheff, Robin
Munson, Brian A.
Volic, Ismar
TI CONFIGURATION SPACE INTEGRALS AND THE COHOMOLOGY OF THE SPACE OF
HOMOTOPY STRING LINKS
SO JOURNAL OF KNOT THEORY AND ITS RAMIFICATIONS
LA English
DT Article
DE Configuration space integrals; links; homotopy links; finite type
invariants; chord diagrams; weight systems
ID MILNORS INVARIANTS; MANIFOLD CALCULUS; MAPS
AB Configuration space integrals have been used in recent years for studying the cohomology of spaces of (string) knots and links in R-n for n > 3 since they provide a map from a certain differential graded algebra of diagrams to the deRham complex of differential forms on the spaces of knots and links. We refine this construction so that it now applies to the space of homotopy string links - the space of smooth maps of some number of copies of R in R-n with fixed behavior outside a compact set and such that the images of the copies of R are disjoint - even for n = 3. We further study the case n = 3 in degree zero and show that our integrals represent a universal finite type invariant of the space of classical homotopy string links. As a consequence, we deduce that Milnor invariants of string links can be written in terms of configuration space integrals.
C1 [Koytcheff, Robin] Univ Victoria, STN CSC, Victoria, BC V8W 3R4, Canada.
[Munson, Brian A.] US Naval Acad, Dept Math, Annapolis, MD 21402 USA.
[Volic, Ismar] Wellesley Coll, Dept Math, Wellesley, MA 02481 USA.
RP Koytcheff, R (reprint author), Univ Victoria, STN CSC, POB 3060, Victoria, BC V8W 3R4, Canada.
EM rmjk@uvic.ca; munson@usna.edu; ivolic@wellesley.edu
FU National Science Foundation [DMS 1004610, DMS 0805406]
FX We would like to thank Phil Hirschhorn, Greg Arone, Blake Mellor, and
Tom Good-willie for helpful conversations. We are also indebted to
Victor Turchin for his careful reading of an early draft of this paper.
We thank the referee for numerous useful comments. The second author
would like to thank Wellesley College for their hospitality, as this
work was partially completed during his stay there. The third author
would like to thank the University of Virginia's Department of
Mathematics for its hospitality; this paper was partially written while
he was on leave there. The first author was supported by the National
Science Foundation Grant DMS 1004610. The third author was supported in
part by the National Science Foundation Grant DMS 0805406.
NR 32
TC 0
Z9 0
U1 0
U2 1
PU WORLD SCIENTIFIC PUBL CO PTE LTD
PI SINGAPORE
PA 5 TOH TUCK LINK, SINGAPORE 596224, SINGAPORE
SN 0218-2165
EI 1793-6527
J9 J KNOT THEOR RAMIF
JI J. Knot Theory Ramifications
PD OCT
PY 2013
VL 22
IS 11
AR 1350061
DI 10.1142/S0218216513500612
PG 73
WC Mathematics
SC Mathematics
GA 264NV
UT WOS:000327886000001
ER
PT J
AU Lehrter, JC
Ko, DS
Murrell, MC
Hagy, JD
Schaeffer, BA
Greene, RM
Gould, RW
Penta, B
AF Lehrter, John C.
Ko, Dong S.
Murrell, Michael C.
Hagy, James D.
Schaeffer, Blake A.
Greene, Richard M.
Gould, Richard W.
Penta, Bradley
TI Nutrient distributions, transports, and budgets on the inner margin of a
river-dominated continental shelf
SO JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
LA English
DT Article
DE nutrient budgets; biogeochemical cycles; processes and modeling; hypoxic
environments; nutrients and nutrient cycling; estuarine and nearshore
processes
ID GULF-OF-MEXICO; PARTICULATE ORGANIC-CARBON; LOWER MISSISSIPPI RIVER;
COASTAL WATERS; FRESH-WATER; LOUISIANA SHELF; OXYGEN-CONSUMPTION;
NORTH-ATLANTIC; HYPOXIA; PLUME
AB Physical and biogeochemical processes determining the distribution, transport, and fate of nutrients delivered by the Mississippi and Atchafalaya river basin (MARB) to the inner Louisiana continental shelf (LCS) were examined using a three-dimensional hydrodynamic model and observations of hydrography, nutrients, and organic carbon collected during 12 cruises. Two aspects of nutrient transport and fate on the inner LCS (<50 m depth) were evaluated: (1) along-shelf and cross-shelf transports were calculated and (2) nutrient sinks and sources were inferred. On average, 47% of the lower Mississippi River freshwater traveled westward on the LCS, but this percentage was reduced during summer when currents reversed to a predominately upcoast direction. Changes from mainly inorganic to organic nutrients were observed at salinity between 20 and 30, and above 30, organic nutrients were the dominant forms. Westward transport of dissolved inorganic nitrogen (DIN) was about 25% of the combined DIN load from the MARB, whereas westward transport of dissolved organic nitrogen (DON) was 2.8-fold larger than the MARB DON load. Different from dissolved inorganic nutrients, for which the rivers were the primary source, the dominant source of organic nutrients was advection from offshore. Overall, the inner LCS was estimated to be a net sink for total nitrogen in the amount of -3.14 mmol N m(-2) d(-1) and a net sink for total phosphorus in the amount of -0.28 mmol P m(-2) d(-1). These sinks were approximately 33% and 59% of the total N and P sources, respectively, to the inner LCS.
C1 [Lehrter, John C.; Murrell, Michael C.; Hagy, James D.; Schaeffer, Blake A.; Greene, Richard M.] US EPA, Off Res & Dev, Gulf Breeze, FL 32561 USA.
[Ko, Dong S.; Gould, Richard W.; Penta, Bradley] Naval Res Lab, Stennis Space Ctr, MS USA.
RP Lehrter, JC (reprint author), US EPA, Off Res & Dev, 1 Sabine Isl Dr, Gulf Breeze, FL 32561 USA.
EM lehrter.john@epa.gov
FU U.S. EPA Office of Research and Development; U.S. IOOS Coastal Ocean
Modeling Testbed
FX We thank Jessica Aukamp, David Beddick, Brandon Jarvis, Roman Stanley,
and Diane Yates for sample processing, laboratory analyses, and database
assistance. We thank the crews of the OSV Anderson, RV Longhorn, and OSV
Bold for their assistance on cruises. We thank Harvey Seim and two
anonymous reviewers for constructive comments on an earlier draft. This
work was supported by the U.S. EPA Office of Research and Development
and the U.S. IOOS Coastal Ocean Modeling Testbed. The study was reviewed
and approved for publication by the U.S. EPA National Health and
Environmental Effects Research Laboratory; however, the contents are
solely the views of the authors. Use of trade names of commercial
products does not constitute endorsement by the U.S. EPA.
NR 64
TC 14
Z9 14
U1 1
U2 17
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 OCT
PY 2013
VL 118
IS 10
BP 4822
EP 4838
DI 10.1002/jgrc.20362
PG 17
WC Oceanography
SC Oceanography
GA 257JQ
UT WOS:000327380100006
ER
PT J
AU Jarosz, E
Teague, WJ
Book, JW
Besiktepe, ST
AF Jarosz, Ewa
Teague, William J.
Book, Jeffrey W.
Besiktepe, Suekrue T.
TI Observed volume fluxes and mixing in the Dardanelles Strait
SO JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
LA English
DT Article
DE Dardanelles Strait; volume fluxes; mixing
ID MICROSTRUCTURE MEASUREMENTS; COASTAL ENVIRONMENT; EXCHANGE FLOWS;
BLACK-SEA; SILL; VARIABILITY; DISSIPATION; TURBULENCE; BOSPORUS;
VELOCITY
AB Pairs of moorings equipped with current profilers were deployed at each end of the Dardanelles Strait and remained in place for over 13 months. Current observations were able to resolve well the exchange flow and volume fluxes. Volume fluxes showed distinct temporal variability in upper and lower layers, especially evident on synoptic time scales. The synoptic flux variability in the upper layer was coherent with the local atmospheric forcing and the bottom pressure anomaly gradient, while the flux variations in the lower layer were related to the bottom pressure anomaly gradient. Estimated volume flux values were often two or more times larger than their respective annual means. Annual upper-layer flux means were 25.66 x 10(-3) and 36.68 x 10(-3) Sv, whereas the lower-layer averages were 14.02 x 10(-3) and 31.67 x 10(-3) Sv for the Marmara and Aegean sections, respectively. The fluxes also showed that there was a net low-salinity water outflow to the Aegean Sea, and that they varied weakly on longer time scales (monthly to seasonal). High-salinity water fluxes ( 39 psu) were used to calculate strait-averaged vertical eddy diffusivities which ranged between 10(-4) and 10(-2) m(2) s(-1). Additionally, microstructure observations were used to evaluate vertical eddy diffusivities. These estimates indicated that mixing in the strait varied spatially and temporarily, and it was dependent on complex strait geometry, exchange flow status, and partially on meteorological conditions. Large values of eddy diffusivities, with a depth-averaged mean of 1.3 x 10(-2) m(2) s(-1), and vigorous mixing were found in the Nara Pass, the narrowest section in the Dardanelles Strait.
C1 [Jarosz, Ewa; Teague, William J.; Book, Jeffrey W.] Naval Res Lab, Stennis Space Ctr, MS 39529 USA.
[Besiktepe, Suekrue T.] Dokuz Eylul Univ, Inst Marine Sci & Technol, Izmir, Turkey.
RP Jarosz, E (reprint author), Naval Res Lab, Stennis Space Ctr, MS 39529 USA.
EM ewa.jarosz@nrlssc.navy.mil
RI Besiktepe, Sukru/L-2272-2013
OI Besiktepe, Sukru/0000-0002-9615-4746
FU Office of Naval Research as a part of the NRL's basic research project
"Exchange Processes in Ocean Straits (EPOS)"
FX This work was supported by the Office of Naval Research as a part of the
NRL's basic research project "Exchange Processes in Ocean Straits
(EPOS)." We would like to thank everyone from the NATO CMRE (previously
known as the NATO NURC) who supported and helped to organize and fund
cruises to the TSS on the R/V Alliance. We are also grateful for the
outstanding assistance and help received from the personnel of the
Turkish Navy Office of Navigation, Hydrography, and Oceanography. We
would like to thank Mark Hulbert, Andrew Quaid, Wesley Goode, and Steve
Sova, our technicians, for excellent instrument preparation, mooring
deployment, and mooring recovery. We are also thankful and indebted to
the crew of the R/V Alliance for assisting with our mooring deployment
and recovery in very challenging conditions.
NR 33
TC 3
Z9 3
U1 0
U2 6
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 OCT
PY 2013
VL 118
IS 10
BP 5007
EP 5021
DI 10.1002/jgrc.20396
PG 15
WC Oceanography
SC Oceanography
GA 257JQ
UT WOS:000327380100018
ER
PT J
AU Lee, WK
Tsoi, S
Whitener, KE
Stine, R
Robinson, JT
Tobin, JS
Weerasinghe, A
Sheehan, PE
Lyuksyutov, SF
AF Lee, Woo-Kyung
Tsoi, Stanislav
Whitener, Keith E.
Stine, Rory
Robinson, Jeremy T.
Tobin, Jonathon S.
Weerasinghe, Asanka
Sheehan, Paul E.
Lyuksyutov, Sergei F.
TI Robust reduction of graphene fluoride using an electrostatically biased
scanning probe
SO NANO RESEARCH
LA English
DT Article
DE graphene fluoride; graphene; electrostatic lithography; Kelvin force
probe microscopy; atomic force microscopy-based electrostatic
nanolithography (AFMEN)
ID ATOMIC-FORCE MICROSCOPY; FLUORINATED GRAPHENE; FIELD; OXIDE;
NANOLITHOGRAPHY; FLUOROGRAPHENE; LITHOGRAPHY; IRRADIATION; OXIDATION
AB We report a novel and easily accessible method to chemically reduce graphene fluoride (GF) sheets with nanoscopic precision using high electrostatic fields generated between an atomic force microscope (AFM) tip and the GF substrate. Reduction of fluorine by the electric field produces graphene nanoribbons (GNR) with a width of 105-1,800 nm with sheet resistivity drastically decreased from > 1 T Omega center dot sq.(-1) (GF) down to 46 k Omega center dot sq.(-1) (GNR). Fluorine reduction also changes the topography, friction, and work function of the GF. Kelvin probe force microscopy measurements indicate that the work function of GF is 180-280 meV greater than that of graphene. The reduction process was optimized by varying the AFM probe velocity between 1.2 mu m center dot s(-1) and 12 mu m center dot s(-1) and the bias voltage applied to the sample between -8 and -12 V. The electrostatic field required to remove fluorine from carbon is similar to 1.6 V center dot nm(-1). Reduction of the fluorine may be due to the softening of the C-F bond in this intense field or to the accumulation and hydrolysis of adventitious water into a meniscus.
C1 [Lee, Woo-Kyung; Tsoi, Stanislav; Whitener, Keith E.; Sheehan, Paul E.] US Naval Res Lab, Div Chem, Washington, DC 20375 USA.
[Stine, Rory] NOVA Res, Alexandria, VA 22308 USA.
[Robinson, Jeremy T.] US Naval Res Lab, Div Elect Sci & Technol, Washington, DC 20375 USA.
[Tobin, Jonathon S.; Weerasinghe, Asanka; Lyuksyutov, Sergei F.] Univ Akron, Dept Phys, Akron, OH 44325 USA.
RP Sheehan, PE (reprint author), US Naval Res Lab, Div Chem, Washington, DC 20375 USA.
EM paul.sheehan@nrl.navy.mil; sfl@uakron.edu
RI Stine, Rory/C-6709-2013; Robinson, Jeremy/F-2748-2010; Sheehan,
Paul/B-4793-2010
OI Sheehan, Paul/0000-0003-2668-4124
FU Office of Naval Research; NRL Nanoscience Institute
FX SFL and JST acknowledge support from the Summer Faculty Program with the
Office of Naval Research. They are very thankful to the Chemistry
Division of the Naval Research Laboratory for hospitality. PES, ST, JTR,
and WKL gratefully acknowledge support from the NRL Nanoscience
Institute. KEW is grateful for the NRL/NRC Postdoctoral Fellowship.
NR 29
TC 8
Z9 8
U1 4
U2 57
PU TSINGHUA UNIV PRESS
PI BEIJING
PA TSINGHUA UNIV, RM A703, XUEYAN BLDG, BEIJING, 10084, PEOPLES R CHINA
SN 1998-0124
EI 1998-0000
J9 NANO RES
JI Nano Res.
PD OCT
PY 2013
VL 6
IS 11
BP 767
EP 774
DI 10.1007/s12274-013-0355-1
PG 8
WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science,
Multidisciplinary; Physics, Applied
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA 255CK
UT WOS:000327216700001
ER
PT J
AU Meintjes, EM
Warren, WW
Yesinowski, JP
AF Meintjes, Ernesta M.
Warren, William W., Jr.
Yesinowski, James P.
TI Temperature-dependent Si-29 NMR resonance shifts in lightly- and
heavily-doped Si:P
SO SOLID STATE NUCLEAR MAGNETIC RESONANCE
LA English
DT Article
DE Si-29 MAS-NMR; Silicon; Semiconductor; Dopant; Metal-nonmetal; Chemical
shift; Knight shift; Temperature dependence
ID CHEMICAL-SHIFTS; SILICON
AB Careful NMR measurements on a very lightly doped reference silicon sample provide a convenient highly precise and accurate secondary chemical shift reference standard for Si-29 MAS-NMR applicable over a wide temperature range. The linear temperature-dependence of the Si-29 chemical shift measured in this sample is used to refine an earlier presentation of the paramagnetic (high-frequency) Si-29 resonance shifts in heavily-doped n-type silicon samples near the metal-nonmetal transition. The data show systematic decreases of the local magnetic fields with increasing temperature in the range 100-470 K for all samples in the carrier concentration range from 2 x 10(18) cm(-3) to 8 x 10(19) cm(-3). This trend is qualitatively similar to that previously observed for the two-orders of magnitude larger P-31 impurity NMR resonance shifts in the same temperature and concentration ranges. The Si-29 and (31)p resonance shifts are not related by a simple scaling factor, however, indicating that impurity and host nuclei are affected by different subsets of partially-localized extrinsic electrons at all temperatures. Published by Elsevier Inc.
C1 [Meintjes, Ernesta M.; Warren, William W., Jr.] Oregon State Univ, Dept Phys, Corvallis, OR 97331 USA.
[Yesinowski, James P.] Naval Res Lab, Div Chem, Washington, DC 20375 USA.
RP Yesinowski, JP (reprint author), Naval Res Lab, Div Chem, Washington, DC 20375 USA.
EM yesinowski@nrl.navy.mil
FU Office of Naval Research through the NRL 6.1 core program
FX JPY acknowledges financial support for this work from the Office of
Naval Research through the NRL 6.1 core program and the NRL Nanoscience
Institute Li-battery project headed by Dr. Michelle Johannes, JPY thanks
Dr, Steve Erwin (NRL) for graphical figures of the silicon lattice.
NR 12
TC 1
Z9 1
U1 1
U2 17
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0926-2040
EI 1527-3326
J9 SOLID STATE NUCL MAG
JI Solid State Nucl. Magn. Reson.
PD OCT-NOV
PY 2013
VL 55-56
BP 91
EP 94
DI 10.1016/j.ssnmr.2013.10.002
PG 4
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical; Physics,
Condensed Matter; Spectroscopy
SC Chemistry; Physics; Spectroscopy
GA 254AQ
UT WOS:000327132700011
PM 24183811
ER
PT J
AU Knutson, EM
AF Knutson, Elizabeth M.
TI Views on discourse: enunciation, interaction
SO FRENCH REVIEW
LA English
DT Book Review
C1 [Knutson, Elizabeth M.] US Naval Acad, Annapolis, MD 21402 USA.
RP Knutson, EM (reprint author), US Naval Acad, Annapolis, MD 21402 USA.
NR 1
TC 0
Z9 0
U1 0
U2 0
PU AMER ASSOC TEACHERS FRENCH
PI CARBONDALE
PA MAILCODE 4510, SOUTHERN ILLINOIS UNIV, CARBONDALE, IL 62901-4510 USA
SN 0016-111X
EI 2329-7131
J9 FR REV
JI Fr. Rev.
PD OCT
PY 2013
VL 87
IS 1
BP 291
EP 292
PG 2
WC Literature, Romance
SC Literature
GA 244RS
UT WOS:000326408200101
ER
PT J
AU Bruneau, TC
AF Bruneau, Thomas C.
TI Contracting Out Security
SO JOURNAL OF STRATEGIC STUDIES
LA English
DT Article
DE Civil-Military Relations; Contracting Out; Inherently Governmental
Function; Private Security Company; Private Military Company
ID CIVIL-MILITARY RELATIONS; PRIVATE
AB Private security companies (PSCs) currently receive a great deal of attention in the news media, in sensationalist reporting, and increasingly in scholarly books and articles. While the scholarly books and articles make significant contributions to our understanding of this global phenomenon, there are several impediments to analysis that must be recognized and overcome if analysis is to be improved. Three of these impediments are reviewed in this article. The author suggests that US government material is currently available to minimize impediments and offers a framework to make analytical sense of it. Since contracting out is based on contracts, and unless the complexities of awarding and managing contracts are understood, recommendations made to reform the process of contracting out security are unrealistic.
C1 US Naval Postgrad Sch, Dept Natl Secur Affairs, Monterey, CA USA.
RP Bruneau, TC (reprint author), US Naval Postgrad Sch, Dept Natl Secur Affairs, Monterey, CA USA.
NR 87
TC 2
Z9 2
U1 0
U2 4
PU ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXFORDSHIRE, ENGLAND
SN 0140-2390
EI 1743-937X
J9 J STRATEGIC STUD
JI J. Strateg. Stud.
PD OCT 1
PY 2013
VL 36
IS 5
BP 638
EP 665
DI 10.1080/01402390.2012.663254
PG 28
WC International Relations; Political Science
SC International Relations; Government & Law
GA 244NP
UT WOS:000326396500002
ER
PT J
AU Ampleford, DJ
Jennings, CA
Jones, B
Hansen, SB
Cuneo, ME
Coverdale, CA
Jones, MC
Flanagan, TM
Savage, M
Stygar, WA
Lopez, MR
Apruzese, JP
Thornhill, JW
Giuliani, JL
Maron, Y
AF Ampleford, D. J.
Jennings, C. A.
Jones, B.
Hansen, S. B.
Cuneo, M. E.
Coverdale, C. A.
Jones, M. C.
Flanagan, T. M.
Savage, M.
Stygar, W. A.
Lopez, M. R.
Apruzese, J. P.
Thornhill, J. W.
Giuliani, J. L.
Maron, Y.
TI K-shell emission trends from 60 to 130 cm/mu s stainless steel
implosions
SO PHYSICS OF PLASMAS
LA English
DT Article
ID Z-PINCH IMPLOSIONS; ALUMINUM; DIAGNOSTICS; POWER; LINE
AB Recent experiments at the 20 MA Z Accelerator have demonstrated, for the first time, implosion velocities up to 110-130 cm/mu s in imploding stainless steel wire arrays. These velocities, the largest inferred in a magnetically driven implosion, lead to ion densities of 2 x 10(20) cm(-3) with electron temperatures of similar to 5 keV. These plasma conditions have resulted in significant increases in the K-shell radiated output of 5-10 keV photons, radiating powers of >30 TW and yields 80 kJ, making it the brightest laboratory x-ray source in this spectral region. These values represent a doubling of the peak power and a 30% increase in the yield relative to previous studies. The experiments also included wire arrays with slower implosions, which were observed to have lower temperatures and reduced K-shell output. These colder pinches, however, radiated 260 TW in the soft x-ray region, making them one of the brightest soft x-ray sources available. (C) 2013 AIP Publishing LLC.
C1 [Ampleford, D. J.; Jennings, C. A.; Jones, B.; Hansen, S. B.; Cuneo, M. E.; Coverdale, C. A.; Jones, M. C.; Flanagan, T. M.; Savage, M.; Stygar, W. A.; Lopez, M. R.] Sandia Natl Labs, Albuquerque, NM 87106 USA.
[Apruzese, J. P.; Thornhill, J. W.; Giuliani, J. L.] Naval Res Lab, Washington, DC 20375 USA.
[Maron, Y.] Weizmann Inst Sci, IL-76100 Rehovot, Israel.
RP Ampleford, DJ (reprint author), Sandia Natl Labs, Albuquerque, NM 87106 USA.
EM damplef@sandia.gov
FU U.S. Department of Energy's National Nuclear Security Administration
[DE-AC04-94AL85000]
FX Sandia National Laboratories is a multiprogram laboratory managed and
operated by Sandia Corporation, a wholly owned subsidiary of Lockheed
Martin Corporation, for the U.S. Department of Energy's National Nuclear
Security Administration under Contract No. DE-AC04-94AL85000.
NR 21
TC 8
Z9 8
U1 0
U2 10
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 1070-664X
EI 1089-7674
J9 PHYS PLASMAS
JI Phys. Plasmas
PD OCT
PY 2013
VL 20
IS 10
AR 103116
DI 10.1063/1.4823711
PG 7
WC Physics, Fluids & Plasmas
SC Physics
GA 247TK
UT WOS:000326644100092
ER
PT J
AU Myers, MC
Rose, DV
Hegeler, F
Wolford, MF
Sethian, JD
AF Myers, M. C.
Rose, D. V.
Hegeler, F.
Wolford, M. F.
Sethian, J. D.
TI Self-pinched transport of a high nu/gamma electron beam
SO PHYSICS OF PLASMAS
LA English
DT Article
ID HOLLOWING INSTABILITY; SIMULATION; GAS; PROPAGATION; REGIME; CELLS;
EMITTANCE; PRESSURE; EMISSION; CATHODES
AB The self-pinched transport of a 0.5 MeV, 18 kA cylindrical electron beam has been studied experimentally and computationally. The relatively low voltage and high current required for materials surface modification applications leads to complicated beam dynamics as the Alfven limit is approached. Transport and focusing of the high nu/gamma beam was done in a sub-Torr, neutral gas-filled, conducting tube in the ion-focused regime. In this regime, beam space charge forces are progressively neutralized to allow focusing of the beam by its self-magnetic field. The beam exhibits stable envelope oscillations as it is efficiently and reproducibly propagated for distances greater than a betatron wavelength. Experimental results follow the trends seen in 2-D particle-in-cell simulations. Results show that the input electron beam can be periodically focused to a peaked profile with the beam half-current radius decreased by a factor of 2.84. This results in an increase of a factor of 8 in beam current density. This focusing is sufficient to produce desired effects in the surface layers of metallic materials. (C) 2013 AIP Publishing LLC.
C1 [Myers, M. C.; Wolford, M. F.; Sethian, J. D.] US Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
[Rose, D. V.] Voss Sci, Albuquerque, NM 87108 USA.
[Hegeler, F.] Commonwealth Technol Inc, Alexandria, VA 22315 USA.
RP Myers, MC (reprint author), US Naval Res Lab, Div Plasma Phys, 4555 Overlook Ave,SW, Washington, DC 20375 USA.
FU U.S. Office of Naval Research
FX The authors would like to thank Rich Fernsler, Dick Hubbard, Dale Welch,
and Frank Young for helpful physics discussions, Tom Albert for
mechanical design, and J. Dubinger, A. Mangassarian, and W. Webster for
technical assistance with the experiments. This work was supported by
the U.S. Office of Naval Research.
NR 36
TC 1
Z9 1
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 1070-664X
EI 1089-7674
J9 PHYS PLASMAS
JI Phys. Plasmas
PD OCT
PY 2013
VL 20
IS 10
AR 103104
DI 10.1063/1.4824110
PG 12
WC Physics, Fluids & Plasmas
SC Physics
GA 247TK
UT WOS:000326644100080
ER
PT J
AU Johnson, WB
Barnett, JE
Elman, NS
Forrest, L
Kaslow, NJ
AF Johnson, W. Brad
Barnett, Jeffrey E.
Elman, Nancy S.
Forrest, Linda
Kaslow, Nadine J.
TI The Competence Constellation Model: A Communitarian Approach to Support
Professional Competence
SO PROFESSIONAL PSYCHOLOGY-RESEARCH AND PRACTICE
LA English
DT Article
DE competence; mentoring; training; professional networks; colleague
ID UNDERSTOOD ETHICAL PRINCIPLES; NATIONAL-SURVEY; TRAINEE-IMPAIRMENT; OWN
INCOMPETENCE; SELF-ASSESSMENTS; PSYCHOLOGY; PERSPECTIVE; EXPERIENCES;
NETWORK; MENTOR
AB Professional competence in psychology and other health care professions is fluid, contextual, and vulnerable to degradation over time. Moreover, psychologists-like all human beings-are often notably ineffective in self-evaluating competence. We introduce the competence constellation model (CCM) as a communitarian strategy for ensuring optimal functioning and protecting psychologists from unintended and unrecognized problems of professional competence. A competence constellation is defined as a cluster of relationships with people who take an active interest in and engage in action to advance a professional's well-being and professional competence. Salient characteristics of a competence constellation include diversity, strength of ties, and intentional effort toward its development. Key structural elements include the inner core, collegial community, collegial acquaintances, and the professional culture. We conclude with several implications of the CCM, as well as recommendations for the training of psychologists, credentialing and regulatory bodies, and modification of the profession's ethical principles and standards.
C1 [Johnson, W. Brad] US Naval Acad, Dept Leadership Eth & Law, Annapolis, MD 21402 USA.
[Elman, Nancy S.] Univ Pittsburgh, Pittsburgh, PA 15260 USA.
[Forrest, Linda] Univ Oregon, Ctr Div & Community, Eugene, OR 97403 USA.
[Kaslow, Nadine J.] Emory Univ, Atlanta, GA 30322 USA.
RP Johnson, WB (reprint author), US Naval Acad, Dept Leadership Eth & Law, Luce Hall 7B, Annapolis, MD 21402 USA.
EM johnsonb@usna.edu
OI Barnett, Jeffrey/0000-0003-0664-4168
NR 93
TC 8
Z9 8
U1 3
U2 12
PU AMER PSYCHOLOGICAL ASSOC
PI WASHINGTON
PA 750 FIRST ST NE, WASHINGTON, DC 20002-4242 USA
SN 0735-7028
EI 1939-1323
J9 PROF PSYCHOL-RES PR
JI Prof. Psychol.-Res. Pract.
PD OCT
PY 2013
VL 44
IS 5
BP 343
EP 354
DI 10.1037/a0033131
PG 12
WC Psychology, Multidisciplinary
SC Psychology
GA 251QM
UT WOS:000326945000008
ER
PT J
AU Nagy, A
Hollingsworth, JA
Hu, B
Steinbruck, A
Stark, PC
Valdez, CR
Vuyisich, M
Stewart, MH
Atha, DH
Nelson, BC
Iyer, R
AF Nagy, Amber
Hollingsworth, Jennifer A.
Hu, Bin
Steinbrueck, Andrea
Stark, Peter C.
Valdez, Cristina Rios
Vuyisich, Momchilo
Stewart, Michael H.
Atha, Donald H.
Nelson, Bryant C.
Iyer, Rashi
TI Functionalization-Dependent Induction of Cellular Survival Pathways by
CdSe Quantum Dots in Primary Normal Human Bronchial Epithelial Cells
SO ACS NANO
LA English
DT Article
DE genotoxicity; nanomaterials; quantum dots; cytotoxicity;
metallothioneins
ID OXIDATIVE STRESS; DNA-DAMAGE; RNA-SEQ; MULTIFUNCTIONAL LIGANDS;
DOWN-REGULATION; WISTAR RATS; NANOPARTICLES; EXPRESSION; BRCA1;
CYTOTOXICITY
AB Quantum dots (QDs) are semiconductor nanocrystals exhibiting unique optical properties that can be exploited for many practical applications ranging from photovoltaics to biomedical imaging and drug delivery. A significant number of studies have alluded to the cytotoxic potential of these materials, implicating Cd-leaching as the causal factor. Here, we investigated the role of heavy metals in biological responses and the potential of CdSe-induced genotoxicity. Our results Indicate that, while negatively charged QDs are relatively noncytotoxic compared to positively charged QDs, the same does not hold true for their genotoxic potential. Keeping QD core composition and size constant, 3 nm CdSe QD cores were functionalized with mercaptopropionic acid (MPA) or cysteamine (CYST), resulting in negatively or positively charged surfaces, respectively. CYST-QDs were found to induce significant cytotoxicity accompanied by DNA strand breakage. However, MPA-QDs, even in the absence of cytotoxicity and reactive oxygen species formation, also induced a high number of DNA strand breaks. QD-induced DNA damage was confirmed by identifying the presence of p53 binding protein 1 (53BP1) in the nuclei of exposed cells and subsequent diminishment of p53 from cytoplasmic cellular extracts. Further, high-throughput real-time PCR analyses revealed upregulation of DNA damage and response genes and several proinflammatory cytokine genes. Most importantly, transcriptome sequencing revealed upregulation of the metallothionein family of genes In cells exposed to MPA-QDs but not CYST-QDs. These data indicate that cytotoxic assays must be supplemented with genotoxic analyses to better understand cellular responses and the full impact of nanoparticle exposure when making recommendations with regard to risk assessment.
C1 [Nagy, Amber; Hu, Bin; Vuyisich, Momchilo] Los Alamos Natl Lab, Biosci Div, Los Alamos, NM 87545 USA.
[Hollingsworth, Jennifer A.; Steinbrueck, Andrea] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Mat Phys & Applicat Div, Los Alamos, NM 87545 USA.
[Stark, Peter C.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Valdez, Cristina Rios] Georgetown Univ, Med Ctr, Dept Biochem & Mol Biol, Washington, DC 20007 USA.
[Stewart, Michael H.] US Naval Res Lab, Opt Sci Div, Washington, DC 20375 USA.
[Atha, Donald H.; Nelson, Bryant C.] NIST, Div Biochem Sci, Gaithersburg, MD 20899 USA.
[Iyer, Rashi] Los Alamos Natl Lab, Def Syst & Anal Div, Los Alamos, NM 87545 USA.
RP Iyer, R (reprint author), Los Alamos Natl Lab, Def Syst & Anal Div, POB 1663, Los Alamos, NM 87545 USA.
EM rashi@lanl.gov
RI Dennis, Allison/A-7654-2014
FU Los Alamos National Laboratory LORD-DR program; NIH-NIGMS
[1R01GM084702-01]; National Nuclear Security Administration of the U.S.
Department of Energy [DE-AC52-06NA25396]
FX We thank Cosby Lindquist for his assistance with figure presentation. We
also thank Patrick Chain and Frances Hundley, members of Los Alamos
National Laboratory's Genome Science group, a branch of the Department
of Energy's Joint Genome Institute, for their excellence in
transcriptomics. We are appreciative of Dr. Norman Doggett, Priya Dig
he, and Melinda Wren of Los Alamos National Laboratory for the use of
the BioMark high-throughput real-time PCR system. This work was
supported by Los Alamos National Laboratory LORD-DR program. This work
was performed, in part, at the Center for Integrated Nanotechnologies, a
U.S. Department of Energy, Office of Basic Energy Sciences user
facility; J.A.H. also acknowledges partial support by NIH-NIGMS Grant
1R01GM084702-01. Los Alamos National Laboratory, an affirmative action
equal opportunity employer, is operated by Los Alamos National Security,
LLC, for the National Nuclear Security Administration of the U.S.
Department of Energy under contract DE-AC52-06NA25396. Certain
commercial equipment, instruments, and materials are identified in this
paper to specify an experimental procedure as completely as possible. In
no case does the identification of particular equipment or materials
imply a recommendation or endorsement by the National Institute of
Standards and Technology nor does it imply that the materials,
Instruments, or equipment are necessarily the best available for the
purpose.
NR 66
TC 17
Z9 17
U1 6
U2 63
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 OCT
PY 2013
VL 7
IS 10
BP 8397
EP 8411
DI 10.1021/nn305532k
PG 15
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 242AF
UT WOS:000326209100011
PM 24007210
ER
PT J
AU Stewart, MH
Huston, AL
Scott, AM
Oh, E
Algar, WR
Deschamps, JR
Susumu, K
Jain, V
Prasuhn, DE
Blanco-Canosa, J
Dawson, PE
Medintz, IL
AF Stewart, Michael H.
Huston, Alan L.
Scott, Amy M.
Oh, Eunkeu
Algar, W. Russ
Deschamps, Jeffrey R.
Susumu, Kimihiro
Jain, Vaibhav
Prasuhn, Duane E.
Blanco-Canosa, Juan
Dawson, Philip E.
Medintz, Igor L.
TI Competition between Forster Resonance Energy Transfer and Electron
Transfer in Stoichiometrically Assembled Semiconductor Quantum
Dot-Fullerene Conjugates
SO ACS NANO
LA English
DT Article
DE Semiconductor; quantum dot; peptide; fullerene; electron transfer; C-60;
FRET; dipole; resonance; carbon allotrope; metal affinity; coordination;
spectral overlap
ID CDSE/CDS CORE/SHELL NANOCRYSTALS; LIGHT-EMITTING-DIODES; CARBON
NANOTUBE; GOLD NANOPARTICLES; LIGANDS; PHOTOLUMINESCENCE; SPECTROSCOPY;
EFFICIENCY; PROTEINS; STATE
AB Understanding how semiconductor quantum dots (QDs) engage in photoinduced energy transfer with carbon allotropes Is necessary for enhanced performance in solar cells and other optoelectronic devices along with the potential to create new types of (bio)sensors. Here, we systematically investigate energy transfer interactions between C-60 fullerenes and four different QDs, composed of CdSe/ZnS (type I) and CdSe/Cds/InS (quasi type II), with emission maxima ranging from 530 to 630 nm. co-pyrrolidine tris-acid was first coupled to the N-terminus of a hexahistidine-terminated peptide via carbodiimide chemistry to yield a C-60-labeled peptide (pepC(60)). This peptide provided the critical means to achieve ratiometric self-assembly of the QD-(pepC(60)) nanoheterostructures by exploiting metal affinity coordination to the OD surface. Controlled QD-(pepC(60))(N) bioconjugates were prepared by discretely increasing the ratio (N) of pepC(60) assembled per QD in mixtures of dimethyl sulfoxide and buffer; this mixed organic/aqueous approach helped alleviate issues of C-60 solubility. An extensive set of control experiments were initially performed to verify the specific and ratiometric nature of QD-(pepC(60))(N) assembly. Photoinitiated energy transfer in these hybrid organic inorganic systems was then interrogated using steady-state and time-resolved fluorescence along with ultrafast transient absorption spectroscopy. Coordination of pepC(60) to the QD results in QD PL quenching that directly tracks with the number of peptides displayed around the QD. A detailed photophysical analysis suggests a competition between electron transfer and Forster resonance energy transfer from the QD to the C-60 that is dependent upon a complex interplay of pepC(60) ratio per QD, the presence of underlying spectral overlap, and contributions from QD size. These results highlight several important factors that must be considered when designing QD-donor/C-60-acceptor systems for potential optoelectronic and biosensing applications.
C1 [Stewart, Michael H.; Huston, Alan L.; Oh, Eunkeu; Susumu, Kimihiro; Jain, Vaibhav] US Naval Res Lab, Opt Sci Div, Washington, DC 20375 USA.
[Algar, W. Russ; Deschamps, Jeffrey R.; Prasuhn, Duane E.; Medintz, Igor L.] US Naval Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 USA.
[Scott, Amy M.] Columbia Univ, Dept Chem, New York, NY 10027 USA.
[Algar, W. Russ] Univ British Columbia, Dept Chem, Vancouver, BC V6T 1Z1, Canada.
[Oh, Eunkeu; Susumu, Kimihiro] Sotera Def Solut, Annapolis Jct, MD 20701 USA.
[Blanco-Canosa, Juan; Dawson, Philip E.] Scripps Res Inst, Dept Cell Biol, La Jolla, CA 92037 USA.
[Blanco-Canosa, Juan; Dawson, Philip E.] Scripps Res Inst, Dept Chem, La Jolla, CA 92037 USA.
RP Stewart, MH (reprint author), US Naval Res Lab, Opt Sci Div, Code 5611, Washington, DC 20375 USA.
EM Michael.stewart@nrl.navy.mil; Igor.medintz@nrl.navy.mil
OI Deschamps, Jeffrey/0000-0001-5845-0010
FU NRL NSI; DTRA JSTO MIPR [B112582M]; NIH [P41 RR-01081]
FX The authors acknowledge NRL NSI and DTRA JSTO MIPR # B112582M for
financial support. The authors thank S. Trammell for assistance with
collecting DPV data. Molecular graphics images were produced using the
UCSF Chimera package from the Resource for Biocomputing, Visualization,
and Informatics at the University of California, San Francisco
(supported by NIH P41 RR-01081).
NR 71
TC 31
Z9 31
U1 7
U2 159
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 OCT
PY 2013
VL 7
IS 10
BP 9489
EP 9505
DI 10.1021/nn403872x
PG 17
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 242AF
UT WOS:000326209100123
PM 24128175
ER
PT J
AU Yakes, MK
Yang, LL
Bracker, AS
Sweeney, TM
Brereton, PG
Kim, M
Kim, CS
Vora, PM
Park, D
Carter, SG
Gammon, D
AF Yakes, Michael K.
Yang, Lily
Bracker, Allan S.
Sweeney, Timothy M.
Brereton, Peter G.
Kim, Mijin
Kim, Chul Soo
Vora, Patrick M.
Park, Doewon
Carter, Samuel G.
Gammon, Daniel
TI Leveraging Crystal Anisotropy for Deterministic Growth of InAs Quantum
Dots with Narrow Optical Linewidths
SO NANO LETTERS
LA English
DT Article
DE Quantum dot; InAs; molecular beam epitaxy; site-controlled; quantum
information; single photon source
ID SURFACE-DIFFUSION; GAAS(001); DEPENDENCE; EPITAXY; ARRAYS; SPINS
AB Crystal growth anisotropy in molecular beam epitaxy usually prevents deterministic nucleation of individual quantum dots when a thick GaAs buffer is grown over a nanopatterned substrate. Here, we demonstrate how this anisotropy can actually be used to mold nucleation sites for single dots on a much thicker buffer than has been achieved by conventional techniques. This approach greatly suppresses the problem of defect-induced line broadening for single quantum dots in a charge-tunable device, giving state-of-the-art optical linewidths for a system widely studied as a spin qubit for quantum information.
C1 [Yakes, Michael K.; Yang, Lily; Bracker, Allan S.; Sweeney, Timothy M.; Brereton, Peter G.; Kim, Chul Soo; Vora, Patrick M.; Park, Doewon; Carter, Samuel G.; Gammon, Daniel] Naval Res Lab, Washington, DC 20375 USA.
[Kim, Mijin] Sotera Def Solut, Annapolis Jct, MD 20701 USA.
RP Bracker, AS (reprint author), Naval Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM bracker@nrl.navy.mil
RI Carter, Sam/G-4589-2012; Brereton, Peter/M-4751-2013;
OI Brereton, Peter/0000-0002-2814-4247; Vora, Patrick/0000-0003-3967-8137
FU US Office of Naval Research; NSA/LPS; Multi-University Research
Initiative (US Army Research Office) [W911NF0910406]
FX This work was supported by the US Office of Naval Research, NSA/LPS, and
a Multi-University Research Initiative (US Army Research Office;
W911NF0910406). We would like to thank John Lawall at the National
Institutes of Standards and Technology for guidance in setting up the
scanning Fabry-Perot etalon for high-resolution photoluminescence
measurements.
NR 35
TC 13
Z9 13
U1 0
U2 36
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1530-6984
EI 1530-6992
J9 NANO LETT
JI Nano Lett.
PD OCT
PY 2013
VL 13
IS 10
BP 4870
EP 4875
DI 10.1021/nl402744s
PG 6
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied;
Physics, Condensed Matter
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA 243ZG
UT WOS:000326356300046
PM 23987910
ER
PT J
AU Maxwell, SM
Hazen, EL
Bograd, SJ
Halpern, BS
Breed, GA
Nickel, B
Teutschel, NM
Crowder, LB
Benson, S
Dutton, PH
Bailey, H
Kappes, MA
Kuhn, CE
Weise, MJ
Mate, B
Shaffer, SA
Hassrick, JL
Henry, RW
Irvine, L
McDonald, BI
Robinson, PW
Block, BA
Costa, DP
AF Maxwell, Sara M.
Hazen, Elliott L.
Bograd, Steven J.
Halpern, Benjamin S.
Breed, Greg A.
Nickel, Barry
Teutschel, Nicole M.
Crowder, Larry B.
Benson, Scott
Dutton, Peter H.
Bailey, Helen
Kappes, Michelle A.
Kuhn, Carey E.
Weise, Michael J.
Mate, Bruce
Shaffer, Scott A.
Hassrick, Jason L.
Henry, Robert W.
Irvine, Ladd
McDonald, Birgitte I.
Robinson, Patrick W.
Block, Barbara A.
Costa, Daniel P.
TI Cumulative human impacts on marine predators
SO NATURE COMMUNICATIONS
LA English
DT Article
ID ECOSYSTEM-BASED MANAGEMENT; CLIMATE-CHANGE; OCEAN; CALIFORNIA;
CONSERVATION; FISHERIES; BIODIVERSITY; ENVIRONMENT; HOTSPOTS; ECOLOGY
AB Stressors associated with human activities interact in complex ways to affect marine ecosystems, yet we lack spatially explicit assessments of cumulative impacts on ecologically and economically key components such as marine predators. Here we develop a metric of cumulative utilization and impact (CUI) on marine predators by combining electronic tracking data of eight protected predator species (n=685 individuals) in the California Current Ecosystem with data on 24 anthropogenic stressors. We show significant variation in CUI with some of the highest impacts within US National Marine Sanctuaries. High variation in underlying species and cumulative impact distributions means that neither alone is sufficient for effective spatial management. Instead, comprehensive management approaches accounting for both cumulative human impacts and trade-offs among multiple stressors must be applied in planning the use of marine resources.
C1 [Maxwell, Sara M.] Univ Calif Santa Cruz, Dept Ocean Sci, Santa Cruz, CA 95064 USA.
[Maxwell, Sara M.] Marine Conservat Inst, Glen Ellen, CA 95442 USA.
[Maxwell, Sara M.; Crowder, Larry B.; Block, Barbara A.] Stanford Univ, Hopkins Marine Stn, Dept Biol, Pacific Grove, CA 93950 USA.
[Maxwell, Sara M.; Hazen, Elliott L.; Crowder, Larry B.; Block, Barbara A.] Stanford Univ, Ctr Ocean Solut, Monterey, CA 93940 USA.
[Hazen, Elliott L.; Bograd, Steven J.] NOAA, Div Environm Res, SW Fisheries Sci Ctr, Pacific Grove, CA 93950 USA.
[Hazen, Elliott L.; Henry, Robert W.] Univ Calif Santa Cruz, Inst Marine Sci, Santa Cruz, CA 95064 USA.
[Halpern, Benjamin S.] Univ Calif Santa Barbara, Bren Sch Environm Sci & Management, Santa Barbara, CA 93106 USA.
[Halpern, Benjamin S.] Univ London Imperial Coll Sci Technol & Med, Ascot SL5 7PY, Berks, England.
[Breed, Greg A.] Harvard Forest, Petersham, MA 01366 USA.
[Nickel, Barry] Univ Calif Santa Cruz, Ctr Integrated Spatial Res, Santa Cruz, CA 95064 USA.
[Teutschel, Nicole M.; Kappes, Michelle A.; Hassrick, Jason L.; Robinson, Patrick W.; Costa, Daniel P.] Univ Calif Santa Cruz, Dept Ecol & Evolutionary Biol, Santa Cruz, CA 95064 USA.
[Benson, Scott] NOAA, Protected Resources Div, SW Fisheries Sci Ctr, Natl Marine Fisheries Serv, Moss Landing, CA 95039 USA.
[Dutton, Peter H.] NOAA, Protected Resources Div, SW Fisheries Sci Ctr, Natl Marine Fisheries Serv, La Jolla, CA 92037 USA.
[Bailey, Helen] Univ Maryland, Ctr Environm Sci, Chesapeake Biol Lab, Solomons, MD 20688 USA.
[Kuhn, Carey E.] NOAA, Natl Marine Mammal Lab, Alaska Fisheries Sci Ctr, Natl Marine Fisheries Serv, Seattle, WA 98115 USA.
[Weise, Michael J.] Off Naval Res, Arlington, VA 22203 USA.
[Mate, Bruce; Irvine, Ladd] Oregon State Univ, Hatfield Marine Sci Ctr, Marine Mammal Inst, Newport, OR 97365 USA.
[Shaffer, Scott A.] San Jose State Univ, Dept Biol Sci, San Jose, CA 95192 USA.
[McDonald, Birgitte I.] Univ Calif San Diego, Scripps Inst Oceanog, Ctr Marine Biotechnol & Biomed, La Jolla, CA 92093 USA.
RP Maxwell, SM (reprint author), Univ Calif Santa Cruz, Dept Ocean Sci, 1156 High St, Santa Cruz, CA 95064 USA.
EM maxwells@stanford.edu
RI Bailey, Helen/E-6813-2012; Shaffer, Scott/D-5015-2009;
OI Bailey, Helen/0000-0001-7445-4687; Shaffer, Scott/0000-0002-7751-5059;
Maxwell, Sara/0000-0002-4425-9378
FU Sloan Foundation's Census of Marine Life program; Stanford University's
Hopkins Marine Station and Center for Ocean Solutions; Sloan foundation;
Packard foundation; Moore foundation; Office of Naval Research; NOAA;
E&P Sound and Marine Life JIP from OGP; Monterey Bay Aquarium
Foundation; NSF Graduate Research Fellowship Program; UCSC Chancellor's
Fellowship; Steve Blank; TWIG
FX Funding for this work was provided by the Sloan Foundation's Census of
Marine Life program and Stanford University's Hopkins Marine Station and
Center for Ocean Solutions. TOPP research was funded by the Sloan,
Packard and Moore foundations. Electronic tagging and tracking in TOPP
was also supported by the Office of Naval Research, the NOAA, the E&P
Sound and Marine Life JIP under contract from the OGP and the Monterey
Bay Aquarium Foundation. S. M. M. was supported by NSF Graduate Research
Fellowship Program, the UCSC Chancellor's Fellowship, Steve Blank and
TWIG. We are grateful to the US Fish and Wildlife Service in Hawaii for
logistical support, P. Raimondi for statistical guidance, and C.
Champagne, R. Lewison, B. Best, L. Ballance, J. Samhouri and D.
Wingfield Briscoe for manuscript assistance.
NR 59
TC 38
Z9 38
U1 7
U2 81
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 OCT
PY 2013
VL 4
AR 2688
DI 10.1038/ncomms3688
PG 9
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 245OT
UT WOS:000326473900002
PM 24162104
ER
PT J
AU Gephart, RT
Coneski, PN
Wynne, JH
AF Gephart, Raymond T., III
Coneski, Peter N.
Wynne, James H.
TI Decontamination of Chemical-Warfare Agent Simulants by Polymer Surfaces
Doped with the Singlet Oxygen Generator Zinc Octaphenoxyphthalocyanine
SO ACS APPLIED MATERIALS & INTERFACES
LA English
DT Article
DE singlet oxygen; chemical-warfare agent simulants; zinc
octaphenoxyphthalocyanine; decontamination; electrospinning;
photooxidation
ID MOLECULAR-OXYGEN; PHOTODYNAMIC THERAPY; QUANTUM YIELDS; PHOTOCHEMICAL
PROPERTIES; HYDROGEN PEROXIDE; ORGANIC SULFIDES; DERIVATIVES; CHEMISTRY;
PHOTOSENSITIZERS; PHTHALOCYANINES
AB Using reactive singlet oxygen (O-1(2)), the oxidation of chemical-warfare agent (CWA) simulants has been demonstrated. The zinc octaphenoxyphthalocyanine (ZnOPPc) complex was demonstrated to be an efficient photosensitizer for converting molecular oxygen (O-2) to O-1(2) using broad-spectrum light (450-800 nm) from a 250 W halogen lamp. This photosensitization produces O-1(2) in solution as well as within polymer matrices. The oxidation of 1-naphthol to naphthoquinone was used to monitor the rate of O-1(2) generation in the commercially available polymer film Hydrothane that incorporates ZnOPPc. Using electrospinning, nanofibers of ZnOPPc in Hydrothane and polycarbonate were formed and analyzed for their ability to oxidize demeton-S, a CWA simulant, on the surface of the polymers and were found to have similar reactivity as their corresponding films. The Hydrothane films were then used to oxidize CWA simulants malathion, 2-chloroethyl phenyl sulfide (CEPS), and 2-chloroethyl ethyl sulfide (CEES). Through this oxidation process, the CWA simulants are converted into less toxic compounds, thus decontaminating the surface using only O-2 from the air and light.
C1 [Gephart, Raymond T., III; Coneski, Peter N.] Naval Res Lab, Amer Soc Engn Educ, Washington, DC 20375 USA.
[Gephart, Raymond T., III; Coneski, Peter N.; Wynne, James H.] Naval Res Lab, Div Chem, Washington, DC 20375 USA.
RP Wynne, JH (reprint author), Naval Res Lab, Div Chem, Code 6100,4555 Overlook Ave South West, Washington, DC 20375 USA.
EM james.wynne@nrl.navy.mil
FU Office of Naval Research; Naval Research Laboratory; American Society
for Engineering Education
FX This work was funded by the Office of Naval Research and the Naval
Research Laboratory. R.T.G. and P.N.C. acknowledge support from the
American Society for Engineering Education. R.T.G. and P.N.C. performed
this work while under contract with the Naval Research Laboratory.
NR 63
TC 5
Z9 5
U1 6
U2 53
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 OCT
PY 2013
VL 5
IS 20
BP 10191
EP 10200
DI 10.1021/am402897b
PG 10
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary
SC Science & Technology - Other Topics; Materials Science
GA 242BR
UT WOS:000326212900045
PM 24060426
ER
PT J
AU Frey, W
Jiang, WH
Sack, M
Weber, B
AF Frey, Wolfgang
Jiang, Weihua
Sack, Martin
Weber, Bruce
TI Special Issue for Selected Papers from EAPPC/BEAMS 2012
SO IEEE TRANSACTIONS ON PLASMA SCIENCE
LA English
DT Editorial Material
C1 [Frey, Wolfgang; Sack, Martin] Karlsruhe Inst Technol, IHM, D-76344 Eggenstein Leopoldshafen, FR, Germany.
[Jiang, Weihua] Nagaoka Univ Technol, Extreme Energy Dens Res Inst, Nagaoka, Niigata 9402188, Japan.
[Weber, Bruce] Naval Res Lab, Washington, DC 20375 USA.
RP Frey, W (reprint author), Karlsruhe Inst Technol, IHM, D-76344 Eggenstein Leopoldshafen, FR, Germany.
EM wolfgang.frey@kit.edu; jiang@nagaokaut.ac.jp; martin.sack@kit.edu;
bruce.weber@nrl.navy.mil
NR 0
TC 0
Z9 0
U1 0
U2 0
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0093-3813
EI 1939-9375
J9 IEEE T PLASMA SCI
JI IEEE Trans. Plasma Sci.
PD OCT
PY 2013
VL 41
IS 10
SI SI
BP 2579
EP 2579
DI 10.1109/TPS.2013.2281261
PN 1
PG 1
WC Physics, Fluids & Plasmas
SC Physics
GA 238KS
UT WOS:000325945900001
ER
PT J
AU Huhman, BM
Neri, JM
AF Huhman, Brett M.
Neri, Jesse M.
TI Investigations Into the Design of a Compact Battery-Powered Rep-Rate
Capacitor Charger
SO IEEE TRANSACTIONS ON PLASMA SCIENCE
LA English
DT Article; Proceedings Paper
CT 4th Euro-Asian Pulsed Power Conference (EAPPC) / 19th International
Conference on High-Power Particle Beams (BEAMS)
CY SEP 30-OCT 04, 2012
CL Karlsruhe, GERMANY
DE Batteries; LLC converter; pulsed power; rep-rate
ID LLC RESONANT CONVERTER
AB The U.S. Naval Research Laboratory is developing a battery-powered rep-rate charger for a 60-kJ capacitor bank. The goal is to charge a 4800-mu F capacitor to 5 kV in < 5 s for a 50-shot burst at 10 shots/min. A bank of LiFePO4 batteries is used with a full H-bridge converter, a transformer, and a rectifier to transform the 600 V battery voltage to 5-kV secondary voltage. There are two major aspects to the charger design: battery energy store and the dc-dc converter. A stable battery pack requires active cooling, management, and feedback for proper and safe operation. A design study has been performed to identify an appropriate dc-dc converter that can minimize the weight and volume of the system while maintaining high electrical efficiency. An LLC is being evaluated, as it has the possibility of eliminating a discrete inductor using the magnetizing inductance of the transformer in the resonant circuit. Work has also been performed in the design and evaluation of a battery pack, specifically on characterizing the operational parameters of the pack as applied to the desired load. This paper will present simulation data and results from the experiments.
C1 [Huhman, Brett M.; Neri, Jesse M.] US Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
RP Huhman, BM (reprint author), US Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
EM brett.huhman@nrl.navy.mil; jesse.neri@nrl.navy.mil
NR 24
TC 2
Z9 2
U1 0
U2 0
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0093-3813
EI 1939-9375
J9 IEEE T PLASMA SCI
JI IEEE Trans. Plasma Sci.
PD OCT
PY 2013
VL 41
IS 10
SI SI
BP 2659
EP 2665
DI 10.1109/TPS.2013.2273179
PN 1
PG 7
WC Physics, Fluids & Plasmas
SC Physics
GA 238KS
UT WOS:000325945900016
ER
PT J
AU Ghavamian, P
Schwartz, SJ
Mitchell, J
Masters, A
Laming, JM
AF Ghavamian, Parviz
Schwartz, Steven J.
Mitchell, Jeremy
Masters, Adam
Laming, J. Martin
TI Electron-Ion Temperature Equilibration in Collisionless Shocks: The
Supernova Remnant-Solar Wind Connection
SO SPACE SCIENCE REVIEWS
LA English
DT Review
DE Collisionless shocks; Supernova remnants; Solar wind; Cosmic ray
acceleration
ID COSMIC-RAY ACCELERATION; BALMER-DOMINATED SHOCKS; MAGNETIC-FIELD
AMPLIFICATION; LARGE-MAGELLANIC-CLOUD; HIGH-RESOLUTION SPECTROSCOPY;
QUASI-PERPENDICULAR SHOCKS; SNR RX J1713.7-3946; PARTICLE-ACCELERATION;
MACH NUMBER; HIGH-ENERGY
AB Collisionless shocks are loosely defined as shocks where the transition between pre-and post-shock states happens on a length scale much shorter than the collisional mean free path. In the absence of collision to enforce thermal equilibrium post-shock, electrons and ions need not have the same temperatures. While the acceleration of electrons for injection into shock acceleration processes to produce cosmic rays has received considerable attention, the related problem of the shock heating of quasi-thermal electrons has been relatively neglected.
In this paper we review the state of our knowledge of electron heating in astrophysical shocks, mainly associated with supernova remnants (SNRs), shocks in the solar wind associated with the terrestrial and Saturnian bowshocks, and galaxy cluster shocks. The solar wind and SNR samples indicate that the ratio of electron temperature, (T (e) ) to ion temperature (T (p) ) declining with increasing shock speed or Alfv,n Mach number. We discuss the extent to which such behavior can be understood on the basis of waves generated by cosmic rays in a shock precursor, which then subsequently damp by heating electrons, and speculate that a similar explanation may work for both solar wind and SNR shocks.
C1 [Ghavamian, Parviz] Towson Univ, Dept Phys Astron & Geosci, Towson, MD 21252 USA.
[Schwartz, Steven J.; Mitchell, Jeremy] Univ London Imperial Coll Sci Technol & Med, Dept Phys, London, England.
[Masters, Adam] Japan Aerosp Explorat Agcy, Inst Space & Astronaut Sci, Tokyo, Kanagawa 2525210, Japan.
[Laming, J. Martin] Naval Res Lab, Div Space Sci, Washington, DC 20375 USA.
RP Ghavamian, P (reprint author), Towson Univ, Dept Phys Astron & Geosci, Towson, MD 21252 USA.
EM pghavamian@towson.edu; s.schwartz@imperial.ac.uk;
j.mitchell@imperial.ac.uk; a.masters@stp.isas.jaxa.jp;
j.laming@nrl.navy.mil
FU HST [HST-GO-11184.07-A]; NASA Astrophysics Data Analysis Program
[NNH10A009I]; Office of Naval Research
FX P.G. acknowledges support by HST grant HST-GO-11184.07-A to Towson
University. JML acknowledges support by grant NNH10A009I from the NASA
Astrophysics Data Analysis Program, and by basic research funds of the
Office of Naval Research.
NR 117
TC 12
Z9 12
U1 0
U2 2
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0038-6308
EI 1572-9672
J9 SPACE SCI REV
JI Space Sci. Rev.
PD OCT
PY 2013
VL 178
IS 2-4
BP 633
EP 663
DI 10.1007/s11214-013-9999-0
PG 31
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 240PZ
UT WOS:000326110700020
ER
PT J
AU Atwood, SA
Reid, JS
Kreidenweis, SM
Cliff, SS
Zhao, YJ
Lin, NH
Tsay, SC
Chu, YC
Westphal, DL
AF Atwood, Samuel A.
Reid, Jeffrey S.
Kreidenweis, Sonia M.
Cliff, Steven S.
Zhao, Yongjing
Lin, Neng-Huei
Tsay, Si-Chee
Chu, Yu-Chi
Westphal, Douglas L.
TI Size resolved measurements of springtime aerosol particles over the
northern South China Sea
SO ATMOSPHERIC ENVIRONMENT
LA English
DT Article
DE Asian aerosol; Aerosol vertical distributions; Marine aerosol; Dust
aerosol; Biomass burning aerosol
ID LONG-RANGE TRANSPORT; 7-SEAS/DONGSHA EXPERIMENT; DUST; PRECIPITATION;
RESOLUTION; POLLUTANTS; CLOUDS; MASS
AB Large sources of aerosol particles and their precursors are ubiquitous in East Asia. Such sources are known to impact the South China Sea (henceforth SCS), a sometimes heavily polluted region that has been suggested as particularly vulnerable to climate change. To help elucidate springtime aerosol transport into the SCS, an intensive study was performed on the remote Dongsha (aka Pratas) Islands Atoll in spring 2010. As part of this deployment, a Davis Rotating-drum Uniform size-cut Monitor (DRUM) cascade impactor was deployed to collect size-resolved aerosol samples at the surface that were analyzed by X-ray fluorescence for concentrations of selected elements. HYSPLIT backtrajectories indicated that the transport of aerosol observed at the surface at Dongsha was occurring primarily from regions generally to the north and east. This observation was consistent with the apparent persistence of pollution and dust aerosol, along with sea salt, in the ground-based dataset. In contrast to the sea-level observations, modeled aerosol transport suggested that the westerly flow aloft (similar to 700 hPa) transported smoke-laden air toward the site from regions from the south and west. Measured aerosol optical depth at the site was highest during time periods of modeled heavy smoke loadings aloft. These periods did not coincide with elevated aerosol concentrations at the surface, although the model suggested sporadic mixing of this free-tropospheric aerosol to the surface over the SCS. A biomass burning signature was not clearly identified in the surface aerosol composition data, consistent with this aerosol type remaining primarily aloft and not mixing strongly to the surface during the study. Significant vertical wind shear in the region also supports the idea that different source regions lead to varying aerosol impacts in different vertical layers, and suggests the potential for considerable vertical inhomogeneity in the SCS aerosol environment. Published by Elsevier Ltd.
C1 [Atwood, Samuel A.; Kreidenweis, Sonia M.] Colorado State Univ, Dept Atmospher Sci, Ft Collins, CO 80523 USA.
[Reid, Jeffrey S.; Westphal, Douglas L.] Naval Res Lab, Marine Meteorol Div, Aerosol & Radiat Sect, Monterey, CA 93943 USA.
[Lin, Neng-Huei] Natl Cent Univ, Dept Atmospher Sci, Chungli 32054, Taiwan.
[Cliff, Steven S.; Zhao, Yongjing] Univ Calif Davis, Air Qual Res Ctr, Davis, CA 95616 USA.
[Tsay, Si-Chee] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Chu, Yu-Chi] Taiwan Environm Protect Adm, Taipei, Taiwan.
RP Reid, JS (reprint author), Naval Res Lab, Marine Meteorol Div, Aerosol & Radiat Sect, Grace Hopper Ave,Stop 2, Monterey, CA 93943 USA.
EM satwood@atmos.colostate.edu; reidj@nrlmry.navy.mil;
sonia@atmos.colostate.edu; sscliff@ucdavis.edu; yjzhao@ucdavis.edu;
nhlin@cc.ncu.edu.tw; si-chee.tsay@nasa.gov; ycchu@epa.gov.tw;
douglas.westphal@nrlmry.navy.mil
RI Reid, Jeffrey/B-7633-2014; Tsay, Si-Chee/J-1147-2014; Kreidenweis,
Sonia/E-5993-2011
OI Reid, Jeffrey/0000-0002-5147-7955; Kreidenweis,
Sonia/0000-0002-2561-2914
FU NRL Base Research Program; Colorado State University Center for
Geosciences/Atmospheric Research (CG/AR); Taiwanese Environmental
Protection Administration; National Science Council; NASA Radiation
Sciences Program
FX This work was funded by the NRL Base Research Program and the Colorado
State University Center for Geosciences/Atmospheric Research (CG/AR).
The Dongsha field site, as part of the international 7SEAS activities,
was funded by the Taiwanese Environmental Protection Administration and
National Science Council, and by the NASA Radiation Sciences Program for
the deployment of the COMMIT mobile laboratory. A portion of the
analysis by Samuel Atwood was conducted as part of a Naval Research
Enterprise Internship Program (NREIP). We are grateful for the support
of the staff and students of the National Central University of Taiwan.
We thank the NOAA Air Resources Laboratory for providing the HYSPLIT
transport and dispersion model and the converted meteorological fields
used in this publication. Finally, we would like to thank members of the
Aerosol and Radiation Section for many useful conversations and help
with data processing, including James Campbell, Cynthia Curtis, Walter
Sessions, and Peng Xian-Lynch, as well as the ALS program including
Kevin Perry.
NR 41
TC 11
Z9 11
U1 3
U2 40
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 1352-2310
EI 1873-2844
J9 ATMOS ENVIRON
JI Atmos. Environ.
PD OCT
PY 2013
VL 78
SI SI
BP 134
EP 143
DI 10.1016/j.atmosenv.2012.11.024
PG 10
WC Environmental Sciences; Meteorology & Atmospheric Sciences
SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences
GA 220RW
UT WOS:000324605600012
ER
PT J
AU Abdo, AA
Ajello, M
Allafort, A
Baldini, L
Ballet, J
Barbiellini, G
Baring, MG
Bastieri, D
Belfiore, A
Bellazzini, R
Bhattacharyya, B
Bissaldi, E
Bloom, ED
Bonamente, E
Bottacini, E
Brandt, TJ
Bregeon, J
Brigida, M
Bruel, P
Buehler, R
Burgay, M
Burnett, TH
Busetto, G
Buson, S
Caliandro, GA
Cameron, RA
Camilo, F
Caraveo, PA
Casandjian, JM
Cecchi, C
Celik, O
Charles, E
Chaty, S
Chaves, RCG
Chekhtman, A
Chen, AW
Chiang, J
Chiaro, G
Ciprini, S
Claus, R
Cognard, I
Cohen-Tanugi, J
Cominsky, LR
Conrad, J
Cutini, S
D'Ammando, F
De Angelis, A
DeCesar, ME
De Luca, A
Den Hartog, PR
De Palma, F
Dermer, CD
Desvignes, G
Digel, SW
Di Venere, L
Drell, PS
Drlica-Wagner, A
Dubois, R
Dumora, D
Espinoza, CM
Falletti, L
Favuzzi, C
Ferrara, EC
Focke, WB
Franckowiak, A
Freire, PCC
Funk, S
Fusco, P
Gargano, F
Gasparrini, D
Germani, S
Giglietto, N
Giommi, P
Giordano, F
Giroletti, M
Glanzman, T
Godfrey, G
Gotthelf, EV
Grenier, IA
Grondin, MH
Grove, JE
Guillemot, L
Guiriec, S
Hadasch, D
Hanabata, Y
Harding, AK
Hayashida, M
Hays, E
Hessels, J
Hewitt, J
Hill, AB
Horan, D
Hou, X
Hughes, RE
Jackson, MS
Janssen, GH
Jogler, T
Johannesson, G
Johnson, RP
Johnson, AS
Johnson, TJ
Johnson, WN
Johnston, S
Kamae, T
Kataoka, J
Keith, M
Kerr, M
Knodlseder, J
Kramer, M
Kuss, M
Lande, J
Larsson, S
Latronico, L
Lemoine-Goumard, M
Longo, F
Loparco, F
Lovellette, MN
Lubrano, P
Lyne, AG
Manchester, RN
Marelli, M
Massaro, F
Mayer, M
Mazziotta, MN
McEnery, JE
McLaughlin, MA
Mehault, J
Michelson, PF
Mignani, RP
Mitthumsiri, W
Mizuno, T
Moiseev, AA
Monzani, ME
Morselli, A
Moskalenko, IV
Murgia, S
Nakamori, T
Nemmen, R
Nuss, E
Ohno, M
Ohsugi, T
Orienti, M
Orlando, E
Ormes, JF
Paneque, D
Panetta, JH
Parent, D
Perkins, JS
Pesce-Rollins, M
Pierbattista, M
Piron, F
Pivato, G
Pletsch, HJ
Porter, TA
Possenti, A
Raino, S
Rando, R
Ransom, SM
Ray, PS
Razzano, M
Rea, N
Reimer, A
Reimer, O
Renault, N
Reposeur, T
Ritz, S
Romani, RW
Roth, M
Rousseau, R
Roy, J
Ruan, J
Sartori, A
Parkinson, PMS
Scargle, JD
Schulz, A
Sgro, C
Shannon, R
Siskind, EJ
Smith, DA
Spandre, G
Spinelli, P
Stappers, BW
Strong, AW
Suson, DJ
Takahashi, H
Thayer, JG
Thayer, JB
Theureau, G
Thompson, DJ
Thorsett, SE
Tibaldo, L
Tibolla, O
Tinivella, M
Torres, DF
Tosti, G
Troja, E
Uchiyama, Y
Usher, TL
Vandenbroucke, J
Vasileiou, V
Venter, C
Vianello, G
Vitale, V
Wang, N
Weltevrede, P
Winer, BL
Wolff, MT
Wood, DL
Wood, KS
Wood, M
Yang, Z
AF Abdo, A. A.
Ajello, M.
Allafort, A.
Baldini, L.
Ballet, J.
Barbiellini, G.
Baring, M. G.
Bastieri, D.
Belfiore, A.
Bellazzini, R.
Bhattacharyya, B.
Bissaldi, E.
Bloom, E. D.
Bonamente, E.
Bottacini, E.
Brandt, T. J.
Bregeon, J.
Brigida, M.
Bruel, P.
Buehler, R.
Burgay, M.
Burnett, T. H.
Busetto, G.
Buson, S.
Caliandro, G. A.
Cameron, R. A.
Camilo, F.
Caraveo, P. A.
Casandjian, J. M.
Cecchi, C.
Celik, Oe .
Charles, E.
Chaty, S.
Chaves, R. C. G.
Chekhtman, A.
Chen, A. W.
Chiang, J.
Chiaro, G.
Ciprini, S.
Claus, R.
Cognard, I.
Cohen-Tanugi, J.
Cominsky, L. R.
Conrad, J.
Cutini, S.
D'Ammando, F.
De Angelis, A.
DeCesar, M. E.
De Luca, A.
Den Hartog, P. R.
De Palma, F.
Dermer, C. D.
Desvignes, G.
Digel, S. W.
Di Venere, L.
Drell, P. S.
Drlica-Wagner, A.
Dubois, R.
Dumora, D.
Espinoza, C. M.
Falletti, L.
Favuzzi, C.
Ferrara, E. C.
Focke, W. B.
Franckowiak, A.
Freire, P. C. C.
Funk, S.
Fusco, P.
Gargano, F.
Gasparrini, D.
Germani, S.
Giglietto, N.
Giommi, P.
Giordano, F.
Giroletti, M.
Glanzman, T.
Godfrey, G.
Gotthelf, E. V.
Grenier, I. A.
Grondin, M. -H.
Grove, J. E.
Guillemot, L.
Guiriec, S.
Hadasch, D.
Hanabata, Y.
Harding, A. K.
Hayashida, M.
Hays, E.
Hessels, J.
Hewitt, J.
Hill, A. B.
Horan, D.
Hou, X.
Hughes, R. E.
Jackson, M. S.
Janssen, G. H.
Jogler, T.
Johannesson, G.
Johnson, R. P.
Johnson, A. S.
Johnson, T. J.
Johnson, W. N.
Johnston, S.
Kamae, T.
Kataoka, J.
Keith, M.
Kerr, M.
Knoedlseder, J.
Kramer, M.
Kuss, M.
Lande, J.
Larsson, S.
Latronico, L.
Lemoine-Goumard, M.
Longo, F.
Loparco, F.
Lovellette, M. N.
Lubrano, P.
Lyne, A. G.
Manchester, R. N.
Marelli, M.
Massaro, F.
Mayer, M.
Mazziotta, M. N.
McEnery, J. E.
McLaughlin, M. A.
Mehault, J.
Michelson, P. F.
Mignani, R. P.
Mitthumsiri, W.
Mizuno, T.
Moiseev, A. A.
Monzani, M. E.
Morselli, A.
Moskalenko, I. V.
Murgia, S.
Nakamori, T.
Nemmen, R.
Nuss, E.
Ohno, M.
Ohsugi, T.
Orienti, M.
Orlando, E.
Ormes, J. F.
Paneque, D.
Panetta, J. H.
Parent, D.
Perkins, J. S.
Pesce-Rollins, M.
Pierbattista, M.
Piron, F.
Pivato, G.
Pletsch, H. J.
Porter, T. A.
Possenti, A.
Raino, S.
Rando, R.
Ransom, S. M.
Ray, P. S.
Razzano, M.
Rea, N.
Reimer, A.
Reimer, O.
Renault, N.
Reposeur, T.
Ritz, S.
Romani, R. W.
Roth, M.
Rousseau, R.
Roy, J.
Ruan, J.
Sartori, A.
Parkinson, P. M. Saz
Scargle, J. D.
Schulz, A.
Sgro, C.
Shannon, R.
Siskind, E. J.
Smith, D. A.
Spandre, G.
Spinelli, P.
Stappers, B. W.
Strong, A. W.
Suson, D. J.
Takahashi, H.
Thayer, J. G.
Thayer, J. B.
Theureau, G.
Thompson, D. J.
Thorsett, S. E.
Tibaldo, L.
Tibolla, O.
Tinivella, M.
Torres, D. F.
Tosti, G.
Troja, E.
Uchiyama, Y.
Usher, T. L.
Vandenbroucke, J.
Vasileiou, V.
Venter, C.
Vianello, G.
Vitale, V.
Wang, N.
Weltevrede, P.
Winer, B. L.
Wolff, M. T.
Wood, D. L.
Wood, K. S.
Wood, M.
Yang, Z.
TI THE SECOND FERMI LARGE AREA TELESCOPE CATALOG OF GAMMA-RAY PULSARS
SO ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
LA English
DT Article
DE catalogs; pulsars: general; stars: neutron
ID WHITE-DWARF COMPANION; MIDDLE-AGED PULSAR; SUPERNOVA REMNANT G21.5-0.9;
DEEP OPTICAL OBSERVATIONS; NANCAY RADIO TELESCOPE; PHOTON IMAGING
CAMERA; MILLISECOND PULSARS; WIND NEBULA; LIGHT CURVES; CRAB PULSAR
AB This catalog summarizes 117 high-confidence >= 0.1 GeV gamma-ray pulsar detections using three years of data acquired by the Large Area Telescope (LAT) on the Fermi satellite. Half are neutron stars discovered using LAT data through periodicity searches in gamma-ray and radio data around LAT unassociated source positions. The 117 pulsars are evenly divided into three groups: millisecond pulsars, young radio-loud pulsars, and young radio-quiet pulsars. We characterize the pulse profiles and energy spectra and derive luminosities when distance information exists. Spectral analysis of the off-peak phase intervals indicates probable pulsar wind nebula emission for four pulsars, and off-peak magnetospheric emission for several young and millisecond pulsars. We compare the gamma-ray properties with those in the radio, optical, and X-ray bands. We provide flux limits for pulsars with no observed gamma-ray emission, highlighting a small number of gamma-faint, radio-loud pulsars. The large, varied gamma-ray pulsar sample constrains emission models. Fermi's selection biases complement those of radio surveys, enhancing comparisons with predicted population distributions.
C1 [Abdo, A. A.; Chekhtman, A.; Parent, D.] George Mason Univ, Coll Sci, Ctr Earth Observing & Space Res, Fairfax, VA 22030 USA.
[Ajello, M.] Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA.
[Allafort, A.; Bloom, E. D.; Bottacini, E.; Cameron, R. A.; Charles, E.; Chiang, J.; Claus, R.; Den Hartog, P. R.; Digel, S. W.; Di Venere, L.; Drell, P. S.; Drlica-Wagner, A.; Dubois, R.; Focke, W. B.; Franckowiak, A.; Funk, S.; Glanzman, T.; Godfrey, G.; Hayashida, M.; Hill, A. B.; Jogler, T.; Johnson, A. S.; Kamae, T.; Kerr, M.; Lande, J.; Massaro, F.; Michelson, P. F.; Mitthumsiri, W.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Orlando, E.; Paneque, D.; Panetta, J. H.; Porter, T. A.; Reimer, A.; Reimer, O.; Romani, R. W.; Thayer, J. G.; Thayer, J. B.; Tibaldo, L.; Usher, T. L.; Vandenbroucke, J.; Vianello, G.; Wood, M.] Stanford Univ, Kavli Inst Particle Astrophys & Cosmol, Dept Phys, WW Hansen Expt Phys Lab, Stanford, CA 94305 USA.
[Allafort, A.; Bloom, E. D.; Bottacini, E.; Cameron, R. A.; Charles, E.; Chiang, J.; Claus, R.; Den Hartog, P. R.; Digel, S. W.; Di Venere, L.; Drell, P. S.; Drlica-Wagner, A.; Dubois, R.; Focke, W. B.; Franckowiak, A.; Funk, S.; Glanzman, T.; Godfrey, G.; Hayashida, M.; Hill, A. B.; Jogler, T.; Johnson, A. S.; Kamae, T.; Kerr, M.; Lande, J.; Massaro, F.; Michelson, P. F.; Mitthumsiri, W.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Orlando, E.; Paneque, D.; Panetta, J. H.; Porter, T. A.; Reimer, A.; Reimer, O.; Romani, R. W.; Thayer, J. G.; Thayer, J. B.; Tibaldo, L.; Usher, T. L.; Vandenbroucke, J.; Vianello, G.; Wood, M.] Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA.
[Baldini, L.] Univ Pisa, Ist Nazl Fis Nucl, Sezione Pisa, I-56127 Pisa, Italy.
[Ballet, J.; Casandjian, J. M.; Chaty, S.; Chaves, R. C. G.; Grenier, I. A.; Renault, N.] Univ Paris Diderot, CNRS, CEA IRFU, CEA Saclay,Lab AIM,Serv Astrophys, F-91191 Gif Sur Yvette, France.
[Barbiellini, G.; Longo, F.] Ist Nazl Fis Nucl, Sezione Trieste, I-34127 Trieste, Italy.
[Barbiellini, G.; Longo, F.] Univ Trieste, Dipartmento Fis, I-34127 Trieste, Italy.
[Baring, M. G.] Rice Univ, Dept Phys & Astron, MS 108, Houston, TX 77251 USA.
[Bastieri, D.; Busetto, G.; Buson, S.; Rando, R.] Ist Nazl Fis Nucl, Sezione Padova, I-35131 Padua, Italy.
[Bastieri, D.; Busetto, G.; Buson, S.; Chiaro, G.; Pivato, G.; Rando, R.] Univ Padua, Dipartimento Fis Astron G Galilei, I-35131 Padua, Italy.
[Belfiore, A.; Johnson, R. P.; Razzano, M.; Ritz, S.; Parkinson, P. M. Saz] Univ Calif Santa Cruz, Santa Cruz Inst Particle Phys, Dept Phys, Santa Cruz, CA 95064 USA.
[Belfiore, A.; Johnson, R. P.; Razzano, M.; Ritz, S.; Parkinson, P. M. Saz] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA.
[Belfiore, A.] Univ Pavia, I-27100 Pavia, Italy.
[Belfiore, A.; Caraveo, P. A.; Chen, A. W.; Marelli, M.; Mignani, R. P.; Pierbattista, M.; Sartori, A.] INAF Ist Astrofis Spaziale & Fis Cosm, I-20133 Milan, Italy.
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[Bhattacharyya, B.; Roy, J.] Natl Ctr Radio Astrophys, Tata Inst Fundamental Res, Pune 411007, Maharashtra, India.
[Bissaldi, E.] Ist Nazl Fis Nucl, Sezione Trieste, I-34127 Trieste, Italy.
[Bissaldi, E.] Univ Trieste, I-34127 Trieste, Italy.
[Bonamente, E.; Cecchi, C.; Germani, S.; Lubrano, P.; Tosti, G.] Ist Nazl Fis Nucl, Sezione Perugia, I-06123 Perugia, Italy.
[Bonamente, E.; Cecchi, C.; Germani, S.; Lubrano, P.; Tosti, G.] Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy.
[Brandt, T. J.; Celik, Oe .; DeCesar, M. E.; Ferrara, E. C.; Guiriec, S.; Harding, A. K.; Hays, E.; Hewitt, J.; McEnery, J. E.; Nemmen, R.; Perkins, J. S.; Thompson, D. J.; Troja, E.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Brigida, M.; De Palma, F.; Favuzzi, C.; Fusco, P.; Giglietto, N.; Giordano, F.; Loparco, F.; Raino, S.; Spinelli, P.] M Merlin Univ Politecn Bari, Dipartimento Fis, I-70126 Bari, Italy.
[Brigida, M.; De Palma, F.; Favuzzi, C.; Fusco, P.; Gargano, F.; Giglietto, N.; Giordano, F.; Loparco, F.; Mazziotta, M. N.; Raino, S.; Spinelli, P.] Ist Nazl Fis Nucl, Sezione Bari, I-70126 Bari, Italy.
[Bruel, P.; Horan, D.] CNRS, IN2P3, Lab Leprince Ringuet Ecole polytechn, Palaiseau, France.
[Buehler, R.; Mayer, M.; Schulz, A.] Deutsch Elektronen Synchrotron DESY, D-15738 Zeuthen, Germany.
[Burgay, M.; Possenti, A.] INAF, Cagliari Astron Observ, I-09012 Capoterra, Italy.
[Burnett, T. H.; Roth, M.] Univ Washington, Dept Phys, Seattle, WA 98195 USA.
[Caliandro, G. A.; Hadasch, D.; Rea, N.; Torres, D. F.] Inst Ciencies Espai IEEE CSIC, E-08193 Barcelona, Spain.
[Camilo, F.; Gotthelf, E. V.] Columbia Univ, Columbia Astrophys Lab, New York, NY 10027 USA.
[Camilo, F.] Natl Astron & Ionosphere Ctr, Arecibo Observ, Arecibo, PR 00612 USA.
[Celik, Oe .; Moiseev, A. A.] CRESST, Greenbelt, MD 20771 USA.
[Celik, Oe .; Moiseev, A. A.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Celik, Oe .] Univ Maryland Baltimore Cty, Dept Phys, Baltimore, MD 21250 USA.
[Celik, Oe .] Univ Maryland Baltimore Cty, Ctr Space Sci & Technol, Baltimore, MD 21250 USA.
[Ciprini, S.; Cutini, S.; Gasparrini, D.; Giommi, P.] ASI Sci Data Ctr, I-00044 Frascati, Italy.
[Ciprini, S.; Cutini, S.; Gasparrini, D.] Osserv Astron Roma, Ist Nazl Astrofis, I-00040 Monte Porzio Catone, Italy.
[Cognard, I.; Desvignes, G.; Theureau, G.] CNRS, LPCE, UMR 6115, F-45071 Orleans 02, France.
[Cognard, I.; Desvignes, G.; Theureau, G.] CNRS, INSU, Stn radioastronomie Nancay, Observ Paris, F-18330 Nancay, France.
[Cohen-Tanugi, J.; Desvignes, G.; Falletti, L.; Nuss, E.; Piron, F.; Vasileiou, V.] Univ Montpellier 2, CNRS, IN2P3, Lab Univ & Particules Montpellier, Montpellier, France.
[Cominsky, L. R.] Sonoma State Univ, Dept Phys & Astron, Rohnert Pk, CA 94928 USA.
[Conrad, J.; Larsson, S.; Yang, Z.] Stockholm Univ, AlbaNova, Dept Phys, SE-10691 Stockholm, Sweden.
[Conrad, J.; Jackson, M. S.; Larsson, S.; Yang, Z.] AlbaNova, Oskar Klein Ctr Cosmoparticle Phys, SE-10691 Stockholm, Sweden.
[Conrad, J.] Royal Swedish Acad Sci, SE-10405 Stockholm, Sweden.
[D'Ammando, F.; Giroletti, M.; Orienti, M.] INAF, Ist Radioastron, I-40129 Bologna, Italy.
[De Angelis, A.] Univ Udine, Dipartimento Fis, I-33100 Udine, Italy.
[De Angelis, A.] Ist Nazl Fis Nucl, Grp Collegato Udine, Sezione Trieste, I-33100 Udine, Italy.
[DeCesar, M. E.; McEnery, J. E.; Moiseev, A. A.; Troja, E.] Univ Maryland, Dept Phys, College Pk, MD 20742 USA.
[DeCesar, M. E.; McEnery, J. E.; Moiseev, A. A.; Troja, E.] Univ Maryland, Dept Astron, College Pk, MD 20742 USA.
[De Luca, A.] IUSS, I-27100 Pavia, Italy.
[Dermer, C. D.; Grove, J. E.; Johnson, W. N.; Lovellette, M. N.; Ray, P. S.; Wolff, M. T.; Wood, K. S.] Naval Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Freire, P. C. C.; Guillemot, L.; Kramer, M.] Max Planck Inst Radioastron, Hugel 69, D-53121 Bonn, Germany.
[Dumora, D.; Hou, X.; Lemoine-Goumard, M.; Mehault, J.; Reposeur, T.; Rousseau, R.; Smith, D. A.] Univ Bordeaux 1, CEN Bordeaux Gradignan, CNRS, IN2P3, F-33175 Gradignan, France.
[Espinoza, C. M.; Janssen, G. H.; Kramer, M.; Lyne, A. G.; Stappers, B. W.; Weltevrede, P.] Univ Manchester, Sch Phys & Astron, Ctr Astrophys, Jodrell Bank, Manchester M13 9PL, Lancs, England.
[Grondin, M. -H.; Knoedlseder, J.] CNRS, IRAP, F-31028 Toulouse 4, France.
[Grondin, M. -H.; Knoedlseder, J.] Univ Toulouse, UPS, GAHEC, IRAP,OMP, Toulouse, France.
[Hanabata, Y.; Ohno, M.; Takahashi, H.] Hiroshima Univ, Dept Phys Sci, Hiroshima 7398526, Japan.
[Hayashida, M.] Kyoto Univ, Grad Sch Sci, Dept Astron, Sakyo Ku, Kyoto 6068502, Japan.
[Hessels, J.] Netherlands Inst Radio Astron ASTRON, NL-7990 AA Dwingeloo, Netherlands.
[Hessels, J.] Univ Amsterdam, Astron Inst Anton Pannekoek, NL-1090 GE Amsterdam, Netherlands.
[Hill, A. B.] Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England.
[Hughes, R. E.; Winer, B. L.] Ohio State Univ, Ctr Cosmol & Astro Particle Phys, Dept Phys, Columbus, OH 43210 USA.
[Jackson, M. S.] AlbaNova, Royal Inst Technol KTH, Dept Phys, SE-10691 Stockholm, Sweden.
[Johannesson, G.] Univ Iceland, Inst Sci, IS-107 Reykjavik, Iceland.
[Johnson, T. J.] Natl Acad Sci, Natl Res Council Res Associate, Washington, DC 20001 USA.
[Johnson, T. J.; Johnston, S.; Keith, M.; Manchester, R. N.; Shannon, R.] CSIRO Astron & Space Sci, Australia Telescope Natl Facil, Epping, NSW 1710, Australia.
[Kataoka, J.] Waseda Univ, Res Inst Sci & Engn, Shinjuku Ku, Tokyo 1698555, Japan.
[Larsson, S.] Stockholm Univ, Dept Astron, SE-10691 Stockholm, Sweden.
[Latronico, L.] Ist Nazl Fis Nucl, Sezione Torino, I-10125 Turin, Italy.
[McLaughlin, M. A.] W Virginia Univ, Dept Phys, Morgantown, WV 26506 USA.
[Mignani, R. P.] Univ Coll London, Mullard Space Sci Lab, Dorking RH5 6NT, Surrey, England.
[Mignani, R. P.] Univ Zielona Gra, Kepler Inst Astron, PL-65265 Zielona Gra, Poland.
[Mizuno, T.; Ohsugi, T.] Hiroshima Univ, Hiroshima Astrophys Sci Ctr, Hiroshima 7398526, Japan.
[Morselli, A.; Vitale, V.] Ist Nazl Fis Nucl, Sezione Roma Tor Vergata, I-00133 Rome, Italy.
[Nakamori, T.] Yamagata Univ, Yamagata 9908560, Japan.
[Ormes, J. F.] Univ Denver, Dept Phys & Astron, Denver, CO 80208 USA.
[Paneque, D.] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany.
[Pletsch, H. J.] Leibniz Univ Hannover, Max Planck Inst Gravitationsphys, Albert Einstein Inst, D-30167 Hannover, Germany.
[Pletsch, H. J.] Leibniz Univ Hannover, D-30167 Hannover, Germany.
[Ransom, S. M.] NRAO, Charlottesville, VA 22903 USA.
[Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria.
[Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria.
[Ruan, J.] Washington Univ, Dept Phys, St Louis, MO 63130 USA.
[Scargle, J. D.] NASA, Ames Res Ctr, Div Space Sci, Moffett Field, CA 94035 USA.
[Siskind, E. J.] NYCB Real Time Comp Inc, Lattingtown, NY 11560 USA.
[Strong, A. W.] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany.
[Suson, D. J.] Purdue Univ Calumet, Dept Chem & Phys, Hammond, IN 46323 USA.
[Thorsett, S. E.] Willamette Univ, Dept Phys, Salem, OR 97031 USA.
[Tibolla, O.] Univ Wurzburg, Inst Theoret Phys & Astrophys, D-97074 Wurzburg, Germany.
[Torres, D. F.] ICREA, Barcelona, Spain.
[Uchiyama, Y.] Rikkyo Univ, Toshima Ku, Tokyo 1718501, Japan.
[Venter, C.] North West Univ, Ctr Space Res, ZA-2520 Potchefstroom, South Africa.
[Vianello, G.] CIFS, I-10133 Turin, Italy.
[Vitale, V.] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy.
[Wang, N.] NAOC, Urumqi Observ, Xinjiang 830011, Peoples R China.
[Wood, D. L.] Praxis Inc, Alexandria, VA 22303 USA.
RP Abdo, AA (reprint author), George Mason Univ, Coll Sci, Ctr Earth Observing & Space Res, Fairfax, VA 22030 USA.
EM ozlemceliktinmaz@gmail.com; hartog@stanford.edu; kerrm@stanford.edu;
joshualande@gmail.com; smith@cenbg.in2p3.fr
RI giglietto, nicola/I-8951-2012; Moskalenko, Igor/A-1301-2007; Sgro,
Carmelo/K-3395-2016; Bissaldi, Elisabetta/K-7911-2016; Massaro,
Francesco/L-9102-2016; Torres, Diego/O-9422-2016; Orlando,
E/R-5594-2016; Di Venere, Leonardo/C-7619-2017; Rando,
Riccardo/M-7179-2013; Gargano, Fabio/O-8934-2015; Hays,
Elizabeth/D-3257-2012; Johnson, Neil/G-3309-2014; Venter,
Christo/E-6884-2011; Reimer, Olaf/A-3117-2013; Morselli,
Aldo/G-6769-2011; Nemmen, Rodrigo/O-6841-2014; Funk, Stefan/B-7629-2015;
Rea, Nanda/I-2853-2015; Johannesson, Gudlaugur/O-8741-2015; Loparco,
Francesco/O-8847-2015; Mazziotta, Mario /O-8867-2015
OI Gasparrini, Dario/0000-0002-5064-9495; Baldini,
Luca/0000-0002-9785-7726; Ray, Paul/0000-0002-5297-5278; Marelli,
Martino/0000-0002-8017-0338; De Luca, Andrea/0000-0001-6739-687X; Sgro',
Carmelo/0000-0001-5676-6214; SPINELLI, Paolo/0000-0001-6688-8864; Rando,
Riccardo/0000-0001-6992-818X; Hill, Adam/0000-0003-3470-4834; Bastieri,
Denis/0000-0002-6954-8862; Pesce-Rollins, Melissa/0000-0003-1790-8018;
orienti, monica/0000-0003-4470-7094; Giroletti,
Marcello/0000-0002-8657-8852; Ransom, Scott/0000-0001-5799-9714;
giglietto, nicola/0000-0002-9021-2888; Moskalenko,
Igor/0000-0001-6141-458X; Bissaldi, Elisabetta/0000-0001-9935-8106;
Massaro, Francesco/0000-0002-1704-9850; Torres,
Diego/0000-0002-1522-9065; Di Venere, Leonardo/0000-0003-0703-824X;
Thorsett, Stephen/0000-0002-2025-9613; giommi,
paolo/0000-0002-2265-5003; Shannon, Ryan/0000-0002-7285-6348; Burgay,
Marta/0000-0002-8265-4344; Caraveo, Patrizia/0000-0003-2478-8018;
Gargano, Fabio/0000-0002-5055-6395; Venter, Christo/0000-0002-2666-4812;
Reimer, Olaf/0000-0001-6953-1385; Morselli, Aldo/0000-0002-7704-9553;
Funk, Stefan/0000-0002-2012-0080; Rea, Nanda/0000-0003-2177-6388;
Johannesson, Gudlaugur/0000-0003-1458-7036; Loparco,
Francesco/0000-0002-1173-5673; Mazziotta, Mario /0000-0001-9325-4672
FU Istituto Nazionale di Astrofisica in Italy; Centre National d'Etudes
Spatiales in France
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 Parkes
Radio Telescope is part of the Australia Telescope which is funded by
the Commonwealth Government for operation as a National Facility managed
by CSIRO. The Green Bank Telescope is operated by the National Radio
Astronomy Observatory, a facility of the National Science Foundation
operated under cooperative agreement by Associated Universities, Inc.
The Arecibo Observatory is part of the National Astronomy and Ionosphere
Center (NAIC), a national research center operated by Cornell University
under a cooperative agreement with the National Science Foundation. The
Nancay Radio Observatory is operated by the Paris Observatory,
associated with the French Centre National de la Recherche Scientifique
(CNRS). The Lovell Telescope is owned and operated by the University of
Manchester as part of the Jodrell Bank Centre for Astrophysics with
support from the Science and Technology Facilities Council of the United
Kingdom. TheWesterbork Synthesis Radio Telescope is operated by
Netherlands Foundation for Radio Astronomy, ASTRON. This work made
extensive use of the ATNF pulsar catalog (Manchester et al. 2005).
NR 264
TC 234
Z9 234
U1 1
U2 30
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0067-0049
EI 1538-4365
J9 ASTROPHYS J SUPPL S
JI Astrophys. J. Suppl. Ser.
PD OCT
PY 2013
VL 208
IS 2
AR UNSP 17
DI 10.1088/0067-0049/208/2/17
PG 59
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 229OM
UT WOS:000325276600004
ER
PT J
AU Meskhidze, N
Petters, MD
Tsigaridis, K
Bates, T
O'Dowd, C
Reid, J
Lewis, ER
Gantt, B
Anguelova, MD
Bhave, PV
Bird, J
Callaghan, AH
Ceburnis, D
Chang, R
Clarke, A
de Leeuw, G
Deane, G
DeMott, PJ
Elliot, S
Facchini, MC
Fairall, CW
Hawkins, L
Hu, YX
Hudson, JG
Johnson, MS
Kaku, KC
Keene, WC
Kieber, DJ
Long, MS
Martensson, M
Modini, RL
Osburn, CL
Prather, KA
Pszenny, A
Rinaldi, M
Russell, LM
Salter, M
Sayer, AM
Smirnov, A
Suda, SR
Toth, TD
Worsnop, DR
Wozniak, A
Zorn, SR
AF Meskhidze, Nicholas
Petters, Markus D.
Tsigaridis, Kostas
Bates, Tim
O'Dowd, Colin
Reid, Jeff
Lewis, Ernie R.
Gantt, Brett
Anguelova, Magdalena D.
Bhave, Prakash V.
Bird, James
Callaghan, Adrian H.
Ceburnis, Darius
Chang, Rachel
Clarke, Antony
de Leeuw, Gerrit
Deane, Grant
DeMott, Paul J.
Elliot, Scott
Facchini, Maria Cristina
Fairall, Chris W.
Hawkins, Lelia
Hu, Yongxiang
Hudson, James G.
Johnson, Matthew S.
Kaku, Kathleen C.
Keene, William C.
Kieber, David J.
Long, Michael S.
Martensson, Monica
Modini, Rob L.
Osburn, Chris L.
Prather, Kimberly A.
Pszenny, Alex
Rinaldi, Matteo
Russell, Lynn M.
Salter, Matthew
Sayer, Andrew M.
Smirnov, Alexander
Suda, Sarah R.
Toth, Travis D.
Worsnop, Douglas R.
Wozniak, Andrew
Zorn, Soeren R.
TI Production mechanisms, number concentration, size distribution, chemical
composition, and optical properties of sea spray aerosols
SO ATMOSPHERIC SCIENCE LETTERS
LA English
DT Article
DE sea spray aerosol; source function; chemical composition; number
concentration; optical properties
C1 [Meskhidze, Nicholas; Petters, Markus D.; Gantt, Brett; Johnson, Matthew S.; Osburn, Chris L.; Suda, Sarah R.] N Carolina State Univ, Raleigh, NC 27695 USA.
[Tsigaridis, Kostas] Columbia Univ, New York, NY USA.
[Tsigaridis, Kostas] NASA, Goddard Inst Space Studies, New York, NY 10025 USA.
[Bates, Tim] NOAA, Pacific Marine Environm Lab, Seattle, WA 98115 USA.
[O'Dowd, Colin; Callaghan, Adrian H.; Ceburnis, Darius] Natl Univ Ireland, Galway, Ireland.
[Reid, Jeff; Anguelova, Magdalena D.; Kaku, Kathleen C.] Naval Res Lab, Washington, DC USA.
[Lewis, Ernie R.] Brookhaven Natl Lab, Upton, NY 11973 USA.
[Bhave, Prakash V.] US EPA, Res Triangle Pk, NC USA.
[Bird, James] Boston Univ, Boston, MA 02215 USA.
[Callaghan, Adrian H.; Modini, Rob L.] Scripps Inst Oceanog, San Diego, CA USA.
[Chang, Rachel; Long, Michael S.] Harvard Univ, Cambridge, MA 02138 USA.
[Clarke, Antony] Univ Hawaii Manoa, Honolulu, HI 96822 USA.
[de Leeuw, Gerrit] Finnish Meteorol Inst, FIN-00101 Helsinki, Finland.
[de Leeuw, Gerrit] Univ Helsinki, Deptartment Phys, Helsinki, Finland.
[Deane, Grant; Prather, Kimberly A.; Russell, Lynn M.] Univ Calif San Diego, San Diego, CA 92103 USA.
[DeMott, Paul J.] Colorado State Univ, Ft Collins, CO 80523 USA.
[Elliot, Scott] Los Alamos Natl Lab, Los Alamos, NM USA.
[Facchini, Maria Cristina; Rinaldi, Matteo] CNR, Inst Atmospher Sci & Climate, Bologna, Italy.
[Fairall, Chris W.] NOAA, Earth Syst Res Lab, Boulder, CO USA.
[Hawkins, Lelia] Harvey Mudd Coll, Claremont, CA 91711 USA.
[Hu, Yongxiang] NASA, Langley Res Ctr, Hampton, VA 23665 USA.
[Hudson, James G.] Univ Nevada, Desert Res Inst, Reno, NV 89506 USA.
[Johnson, Matthew S.] NASA, Ames Res Ctr, Moffett Field, CA 94035 USA.
[Keene, William C.] Univ Virginia, Charlottesville, VA USA.
[Kieber, David J.] SUNY, New York, NY USA.
[Martensson, Monica] Uppsala Univ, Uppsala, Sweden.
[Pszenny, Alex] Univ New Hampshire, Durham, NH 03824 USA.
[Salter, Matthew] Stockholm Univ, S-10691 Stockholm, Sweden.
[Sayer, Andrew M.; Smirnov, Alexander] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Sayer, Andrew M.] Univ Space Res Assoc, Columbia, MD USA.
[Toth, Travis D.] Univ N Dakota, Grand Forks, ND 58201 USA.
[Worsnop, Douglas R.] Aerodyne Res Inc, Billerica, MA USA.
[Wozniak, Andrew] Old Dominion Univ, Norfolk, VA USA.
RP Meskhidze, N (reprint author), N Carolina State Univ, Raleigh, NC 27695 USA.
EM nmeskhidze@ncsu.edu
RI FACCHINI, MARIA CRISTINA/O-1230-2015; Bates, Timothy/L-6080-2016;
Prather, Kimberly/A-3892-2008; Petters, Markus/D-2144-2009; Sayer,
Andrew/H-2314-2012; O'Dowd , Colin/K-8904-2012; Hu,
Yongxiang/K-4426-2012; Petters, Sarah/N-8450-2014; Worsnop,
Douglas/D-2817-2009; Modini, Rob/A-8451-2014; rinaldi,
matteo/K-6083-2012; CHEMATMO Group, Isac/P-7180-2014; Gantt,
Brett/G-2525-2013; DeMott, Paul/C-4389-2011; Facchini, Maria
Cristina/B-3369-2014; Reid, Jeffrey/B-7633-2014
OI FACCHINI, MARIA CRISTINA/0000-0003-4833-9305; Prather,
Kimberly/0000-0003-3048-9890; Salter, Matthew/0000-0003-0645-3265;
Ceburnis, Darius/0000-0003-0231-5324; Petters,
Markus/0000-0002-4082-1693; Sayer, Andrew/0000-0001-9149-1789; O'Dowd ,
Colin/0000-0002-3068-2212; Petters, Sarah/0000-0002-4501-7127; Worsnop,
Douglas/0000-0002-8928-8017; rinaldi, matteo/0000-0001-6543-4000; Gantt,
Brett/0000-0001-7217-2715; DeMott, Paul/0000-0002-3719-1889; Facchini,
Maria Cristina/0000-0003-4833-9305; Reid, Jeffrey/0000-0002-5147-7955
FU National Science Foundation - NSF [AGS-1236957]; Department of Energy
office of Biological and Environmental Research [DOE-DE-SC0007995];
National Oceanic and Atmospheric Administration - NOAA [Z763701];
National Aeronautics and Space Administration - NASA [NNX12AK27G];
Marine Meteorology and Atmospheric Effects Program at the Department of
Defense Office of Naval Research (DOD-ONR); NSF [CHE-1038028]; Irish
Research Council; Marie Curie actions under FP7; National Science
Foundation Physical Oceanography Division [OCE-1155123]
FX Funding for this workshop was provided by the National Science
Foundation - NSF (AGS-1236957), the Department of Energy office of
Biological and Environmental Research (DOE-DE-SC0007995), the National
Oceanic and Atmospheric Administration - NOAA (Z763701), the National
Aeronautics and Space Administration - NASA (NNX12AK27G), and the Marine
Meteorology and Atmospheric Effects Program at the Department of Defense
Office of Naval Research (DOD-ONR). D. Ceburnis acknowledges EPA Ireland
fellowship grant for travel support. K. Prather and G. Deane were
supported by NSF (CHE-1038028) grant. A. H. Callaghan would like to
acknowledge financial support from the Irish Research Council and Marie
Curie actions under FP7 and the National Science Foundation Physical
Oceanography Division (Grant OCE-1155123).
NR 5
TC 11
Z9 11
U1 4
U2 106
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1530-261X
J9 ATMOS SCI LETT
JI Atmos. Sci. Lett.
PD OCT
PY 2013
VL 14
IS 4
BP 207
EP 213
DI 10.1002/asl2.441
PG 7
WC Geochemistry & Geophysics; Meteorology & Atmospheric Sciences
SC Geochemistry & Geophysics; Meteorology & Atmospheric Sciences
GA 239NV
UT WOS:000326033400002
ER
PT J
AU Arrowsmith, SJ
Marcillo, O
Drob, DP
AF Arrowsmith, Stephen J.
Marcillo, Omar
Drob, Douglas P.
TI A framework for estimating stratospheric wind speeds from unknown
sources and application to the 2010 December 25 bolide
SO GEOPHYSICAL JOURNAL INTERNATIONAL
LA English
DT Article
DE Inverse theory; Seismic monitoring and test-ban treaty verification;
Wave propagation
ID INFRASOUND PROPAGATION; UPPER-ATMOSPHERE; OCEAN SWELLS; TEMPERATURE;
MODEL; PREDICTION; MORPHOLOGY; WEATHER; ARRAYS; MIDDLE
AB We present a methodology for infrasonic remote sensing of winds in the stratosphere that does not require discrete ground-truth events. Our method uses measured time delays between arrays of sensors to provide group velocities (referred to here as celerities) and then minimizes the difference between observed and predicted celerities by perturbing an initial atmospheric specification. Because we focus on interarray propagation effects, it is not necessary to simulate the full propagation path from source to receiver. This feature allows us to use a relatively simple forward model that is applicable over short-regional distances. By focusing on stratospheric returns, we show that our non-linear inversion scheme converges much better if the starting model contains a strong stratospheric duct. Using the Horizontal Wind Model (HWM)/Mass Spectrometer Incoherent Scatter (MSISE) empirical climatology as a starting model, we demonstrate that the inversion scheme is robust to large uncertainties in backazimuth, but that uncertainties in the measured trace velocity and celerity require the use of prior constraints to ensure suitable convergence. The inversion of synthetic data, using realistic estimates of measurement error, shows that our scheme will nevertheless improve upon a starting model under most scenarios. The inversion scheme is applied to infrasound data recorded from a large event on 2010 December 25, which is presumed to be a bolide, using data from a nine-element infrasound network in Utah. We show that our recorded data require a stronger zonal wind speed in the stratosphere than is present in the HWM profile, and are more consistent with the Ground-to-Space (G2S) profile.
C1 [Arrowsmith, Stephen J.; Marcillo, Omar] Los Alamos Natl Lab, Geophys Grp, Los Alamos, NM 87544 USA.
[Drob, Douglas P.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
RP Arrowsmith, SJ (reprint author), Los Alamos Natl Lab, Geophys Grp, Los Alamos, NM 87544 USA.
EM sarrowsmith@gmail.com
RI Drob, Douglas/G-4061-2014
OI Drob, Douglas/0000-0002-2045-7740
FU Los Alamos Laboratory Directed Research and Development program; Office
of Naval Research
FX We are grateful to the editor, J. Wassermann, and to two anonymous
reviewers for their thoughtful reviews that helped to improve this
manuscript. We thank Rod Whitaker and Roger Waxler for their comments on
aspects of this work, which helped to strengthen this paper. This
research was funded by the Los Alamos Laboratory Directed Research and
Development program. 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). DPD acknowledges support from Office of Naval Research.
NR 26
TC 7
Z9 7
U1 0
U2 9
PU OXFORD UNIV PRESS
PI OXFORD
PA GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
SN 0956-540X
EI 1365-246X
J9 GEOPHYS J INT
JI Geophys. J. Int.
PD OCT
PY 2013
VL 195
IS 1
BP 491
EP 503
DI 10.1093/gji/ggt228
PG 13
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA 236BX
UT WOS:000325769800037
ER
PT J
AU Sarma, A
Tufts, DW
AF Sarma, Ashwin
Tufts, Donald W.
TI Rank-Order Adaptive CFAR: Performance Bounds and Efficient
Implementation
SO IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS
LA English
DT Article
ID K-DISTRIBUTED CLUTTER; NONPARAMETRIC DETECTION; TESTS; PROBABILITY;
DETECTORS; THRESHOLD
AB The uniformly most powerful (UMP) rank-order analog to the cell-averaging constant false alarm rate (CA-CFAR) detector is developed for both the single and multi-scan case. The detector is capable of false alarm control in arbitrary noise while achieving maximum detection probability for the case of a Swerling II target in Gaussian noise. Relationships with earlier tests are discussed. A divide-and-conquer method is developed that allows for rapid implementation of a large class of two-sample rank tests.
C1 [Sarma, Ashwin] Naval Undersea Warfare Ctr, Newport, RI 02841 USA.
[Sarma, Ashwin] Univ Rhode Isl, Dept Elect Comp & Biomed Engn, Kingston, RI 02881 USA.
[Tufts, Donald W.] Univ Rhode Isl, Dept Elect Engn, Kingston, RI 02881 USA.
RP Sarma, A (reprint author), Naval Undersea Warfare Ctr, 1176 Howell St, Newport, RI 02841 USA.
EM ashwin.sarma@navy.mil
NR 43
TC 1
Z9 1
U1 0
U2 5
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 OCT
PY 2013
VL 49
IS 4
BP 2211
EP 2224
PG 14
WC Engineering, Aerospace; Engineering, Electrical & Electronic;
Telecommunications
SC Engineering; Telecommunications
GA 235ZQ
UT WOS:000325763100007
ER
PT J
AU Schoenecker, S
Willett, P
Bar-Shalom, Y
AF Schoenecker, Steven
Willett, Peter
Bar-Shalom, Yaakov
TI The ML-PMHT Multistatic Tracker for Sharply Maneuvering Targets
SO IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS
LA English
DT Article
AB The maximum likelihood probabilistic multi-hypothesis tracker (ML-PMHT) is applied to a benchmark multistatic active sonar scenario with multiple targets, multiple sources, and multiple receivers. We first compare the performance of the tracker on this scenario when it is applied in Cartesian measurement space, a typical implementation for many trackers, against its performance in delay-bearing measurement space, where the measurement uncertainty is more accurately represented. ML-PMHT is a batch tracker, and the motion of a target being tracked must be given a parameterization that describes the motion of the target throughout the batch. In the scenario in which we apply the tracker, the majority of target returns have low amplitudes (i.e., the targets are low-observable), which makes the choice of a batch tracker very appropriate. In prior work, ML-PMHT was implemented with a straight-line parameterization to describe target motion. However, in order to track maneuvering targets, the tracker was implemented in a sliding-batch fashion under the assumption that a maneuvering track could be approximated as a series of short straight lines. Here, we augment the straight-line parameterization by a maneuver-a single course change within the batch-that allows ML-PMHT to follow even sharply maneuvering targets, and we apply it in both Cartesian and delay-bearing measurement space. We also implement this maneuvering-model parameterization with both a fixed batch-length implementation as well as a variable batch-length implementation. Finally, we develop an expression for the Cramer-Rao lower bound (CRLB) for the maneuvering-model parameterization and show that the ML-PMHT tracker with the maneuvering-model parameterization is an efficient estimator.
C1 [Schoenecker, Steven] Naval Undersea Warfare Ctr, Sensors & Sonar Dept, Newport, RI 02841 USA.
[Willett, Peter; Bar-Shalom, Yaakov] Univ Connecticut, Dept Elect & Comp Engn, Storrs, CT 06269 USA.
RP Schoenecker, S (reprint author), Naval Undersea Warfare Ctr, Sensors & Sonar Dept, 1176 Howell St, Newport, RI 02841 USA.
EM steven.schoenecker@navy.mil
OI Willett, Peter/0000-0001-8443-5586
FU ONR [N00014-10-10412, N00014-10-1-0029]; ARO [W911NF-06-1-0467]
FX This work was supported by ONR Grants N00014-10-10412 and
N00014-10-1-0029, and ARO Grant W911NF-06-1-0467.
NR 22
TC 8
Z9 8
U1 1
U2 6
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 OCT
PY 2013
VL 49
IS 4
BP 2235
EP 2249
PG 15
WC Engineering, Aerospace; Engineering, Electrical & Electronic;
Telecommunications
SC Engineering; Telecommunications
GA 235ZQ
UT WOS:000325763100009
ER
PT J
AU Baggenstoss, PM
AF Baggenstoss, Paul M.
TI Specular Decomposition of Active Sonar Returns using Combined Waveforms
SO IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS
LA English
DT Article
AB We describe a new active sonar processor that obtains simultaneously fine range and Doppler resolution by fusing data from sequentially transmitted linear frequency-modulated (LFM) and CW waveforms. We model the received data as returns from a small number of point-reflectors and fuse returns from the two waveforms using a novel formulation that assumes common amplitude and random phase (CARP). We demonstrate the method using simulated data.
C1 Naval Undersea Warfare Ctr, Newport, RI 02841 USA.
RP Baggenstoss, PM (reprint author), Naval Undersea Warfare Ctr, 1522,1176 Howell St, Newport, RI 02841 USA.
EM p.m.baggenstoss@ieee.org
FU Office of Naval Research
FX This work was supported by the Office of Naval Research.
NR 4
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 0018-9251
EI 1557-9603
J9 IEEE T AERO ELEC SYS
JI IEEE Trans. Aerosp. Electron. Syst.
PD OCT
PY 2013
VL 49
IS 4
BP 2509
EP 2521
PG 13
WC Engineering, Aerospace; Engineering, Electrical & Electronic;
Telecommunications
SC Engineering; Telecommunications
GA 235ZQ
UT WOS:000325763100028
ER
PT J
AU Lee, IH
Ko, DS
Wang, YH
Centurioni, L
Wang, DP
AF Lee, I-Huan
Ko, Dong Shan
Wang, Yu-Huai
Centurioni, Luca
Wang, Dong-Ping
TI The mesoscale eddies and Kuroshio transport in the western North Pacific
east of Taiwan from 8-year (2003-2010) model reanalysis
SO OCEAN DYNAMICS
LA English
DT Article
DE Western North Pacific; Mesoscale eddy; Kuroshio transport; EOF; SVD
ID SATELLITE ALTIMETRY DATA; SUBTROPICAL COUNTERCURRENT; PREDICTION SYSTEM;
DATA ASSIMILATION; FLORIDA CURRENT; CYCLONIC EDDY; CHINA SEA; OCEAN;
VARIABILITY; TOPEX/POSEIDON
AB The relationship between the Kuroshio volume transport east of Taiwan (similar to 24A degrees N) and the impinging mesoscale eddies is investigated using 8-year reanalysis of a primitive equation ocean model that assimilates satellite altimetry and SST data. The mean and fluctuations of the model Kuroshio transport agree well with the available observations. Analysis of model dynamic heights and velocity fields reveals three dominant eddy modes. The first mode describes a large eddy of similar to 500 km in diameter, centered at similar to 22A degrees N. The second mode describes a pair of the north-south counter-rotating eddies of similar to 400 km in diameter each, centered at 23A degrees and 20A degrees N, respectively. The third mode describes a pair of the east-west counter-rotating eddies of similar to 300 km in diameter each, centered at 21A degrees N. The associated velocity fields indicate eddies extending to 600-700 m in depth with vertical shears concentrated in the upper 400 m. All three modes and the model Kuroshio transport have similar dominant timescales of 70-150 days and generally are coherent. The decreased Kuroshio volume transports typically are associated with the impinging cyclonic eddies and the increased transports with the anticyclonic eddies. Selected drifter trajectories are presented to illustrate the three eddy modes and their correspondence with the varying Kuroshio transports.
C1 [Lee, I-Huan] Natl Sun Yat Sen Univ, Dept Marine Environm & Engn, Kaohsiung 80424, Taiwan.
[Ko, Dong Shan] Naval Res Lab, John C Stennis Space Ctr, MS USA.
[Wang, Yu-Huai] Natl Sun Yat Sen Univ, Dept Oceanog, Inst Appl Marine Phys & Undersea Technol, Kaohsiung 80424, Taiwan.
[Centurioni, Luca] UCSD, Scripps Inst Oceanog, La Jolla, CA USA.
[Wang, Dong-Ping] Sch Marine & Atmospher Sci, Stony Brook, NY USA.
RP Wang, YH (reprint author), Natl Sun Yat Sen Univ, Dept Oceanog, Inst Appl Marine Phys & Undersea Technol, Kaohsiung 80424, Taiwan.
EM ihlee@mail.nsysu.edu.tw; ko@mrlssc.navy.mil;
yhwang@faculty.nsysu.edu.tw; lcenturioni@ucsd.edu;
dong-ping.wang@stonybrook.edu
FU National Science Council of Taiwan; Ministry of Education; ONR
[N00014-08WX-02-1170, N00014-11-0347]; NOAA [NA17RJ1231]
FX We appreciate comments from anonymous reviewers and Professor Tony Hirst
that significantly improved the manuscript. This work originated from
the Ph.D. research of IHL at National Taiwan University, Taipei. She
wishes to thank her adviser, Professor Wen-Ssn Chuang, for his
mentorship and guidance throughout this research. We gratefully
acknowledge support by the National Science Council of Taiwan and the
Aim for the Top University from the Ministry of Education. DSK was
supported by ONR grant N00014-08WX-02-1170. LC was supported by ONR
grant N00014-11-0347 and NOAA grant NA17RJ1231.
NR 49
TC 10
Z9 11
U1 0
U2 16
PU SPRINGER HEIDELBERG
PI HEIDELBERG
PA TIERGARTENSTRASSE 17, D-69121 HEIDELBERG, GERMANY
SN 1616-7341
EI 1616-7228
J9 OCEAN DYNAM
JI Ocean Dyn.
PD OCT
PY 2013
VL 63
IS 9-10
BP 1027
EP 1040
DI 10.1007/s10236-013-0643-z
PG 14
WC Oceanography
SC Oceanography
GA 239TT
UT WOS:000326049200002
ER
PT J
AU Cochenour, B
Mullen, L
Muth, J
AF Cochenour, Brandon
Mullen, Linda
Muth, John
TI Temporal Response of the Underwater Optical Channel for High-Bandwidth
Wireless Laser Communications
SO IEEE JOURNAL OF OCEANIC ENGINEERING
LA English
DT Article
DE Communications; laser; optical; propagation; scattering; underwater;
wireless
ID SCATTERING ALBEDO; MODULATED LIGHT; PROPAGATION; WATER
AB This paper describes a high-sensitivity, high-dynamic range experimental method for measuring the frequency response of the underwater optical channel in the forward direction for the purpose of wireless optical communications. Historically, there have been few experimental measurements of the frequency response of the underwater channel, particularly with regard to wireless communication systems. In this work, the frequency response is measured out to 1 GHz over a wide range of water clarities (approximately 1-20 attenuation lengths). Both spatial and temporal dispersions are measured as a function of pointing angle between the transmitter and the receiver. We also investigate the impact of scattering function and receiver field of view. The impact of these results to the link designer is also presented.
C1 [Cochenour, Brandon; Mullen, Linda] Naval Air Syst Command, Patuxent River, MD 20670 USA.
[Muth, John] N Carolina State Univ, Dept Elect Engn, Raleigh, NC 27607 USA.
RP Cochenour, B (reprint author), Naval Air Syst Command, Patuxent River, MD 20670 USA.
EM brandon.cochenour@navy.mil
RI Muth, John/E-9027-2012
OI Muth, John/0000-0002-2488-7721
NR 24
TC 25
Z9 25
U1 2
U2 23
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0364-9059
EI 1558-1691
J9 IEEE J OCEANIC ENG
JI IEEE J. Ocean. Eng.
PD OCT
PY 2013
VL 38
IS 4
SI SI
BP 730
EP 742
DI 10.1109/JOE.2013.2255811
PG 13
WC Engineering, Civil; Engineering, Ocean; Engineering, Electrical &
Electronic; Oceanography
SC Engineering; Oceanography
GA 236UQ
UT WOS:000325825300013
ER
PT J
AU Berger, MT
AF Berger, Mark T.
TI Hard interests, soft illusions: Southeast Asia and American power
SO JOURNAL OF SOUTHEAST ASIAN STUDIES
LA English
DT Book Review
C1 [Berger, Mark T.] Naval Postgrad Sch, Monterey, CA USA.
RP Berger, MT (reprint author), Naval Postgrad Sch, Monterey, CA 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 0022-4634
EI 1474-0680
J9 J SOUTHEAST ASIAN ST
JI J. Southeast Asian Stud.
PD OCT
PY 2013
VL 44
IS 3
BP 519
EP 521
DI 10.1017/S0022463413000386
PG 3
WC Area Studies; Asian Studies
SC Area Studies; Asian Studies
GA 234KI
UT WOS:000325642100011
ER
PT J
AU Tang, HS
Chien, SIJ
Temimi, M
Blain, CA
Ke, Q
Zhao, LH
Kraatz, S
AF Tang, Han Song
Chien, Steven I-Jy
Temimi, Marouane
Blain, Cheryl Ann
Ke, Qu
Zhao, Liuhui
Kraatz, Simon
TI Vulnerability of population and transportation infrastructure at the
east bank of Delaware Bay due to coastal flooding in sea-level rise
conditions
SO NATURAL HAZARDS
LA English
DT Article
DE Sea-level rise; Coastal flooding; Prediction; Vulnerability; Population;
Transportation infrastructure
AB Catastrophic flooding associated with sea-level rise and change of hurricane patterns has put the northeastern coastal regions of the United States at a greater risk. In this paper, we predict coastal flooding at the east bank of Delaware Bay and analyze the resulting impact on residents and transportation infrastructure. The three-dimensional coastal ocean model FVCOM coupled with a two-dimensional shallow water model is used to simulate hydrodynamic flooding from coastal ocean water with fine-resolution meshes, and a topography-based hydrologic method is applied to estimate inland flooding due to precipitation. The entire flooded areas with a range of storm intensity (i.e., no storm, 10-, and 50-year storm) and sea-level rise (i.e., current, 10-, and 50-year sea level) are thus determined. The populations in the study region in 10 and 50 years are predicted using an economic-demographic model. With the aid of ArcGIS, detailed analysis of affected population and transportation systems including highway networks, railroads, and bridges is presented for all of the flood scenarios. It is concluded that sea-level rise will lead to a substantial increase in vulnerability of residents and transportation infrastructure to storm floods, and such a flood tends to affect more population in Cape May County but more transportation facilities in Cumberland County, New Jersey.
C1 [Tang, Han Song; Temimi, Marouane; Ke, Qu; Kraatz, Simon] CUNY City Coll, Dept Civil Engn, New York, NY 10031 USA.
[Chien, Steven I-Jy; Zhao, Liuhui] New Jersey Inst Technol, Dept Civil & Environm Engn, Newark, NJ 07102 USA.
[Blain, Cheryl Ann] Naval Res Lab, Div Oceanog, Stennis Space Ctr, MS 39529 USA.
RP Tang, HS (reprint author), CUNY City Coll, Dept Civil Engn, 138th St & Convent Ave, New York, NY 10031 USA.
EM htang@ccny.cuny.edu
FU Research and Innovative Technology Administration of the US Department
of Transportation through the University Transportation Centers program;
NOAA CREST
FX The work presented in this paper is sponsored by the Research and
Innovative Technology Administration of the US Department of
Transportation through the University Transportation Centers program.
Partial support from NOAA CREST is also acknowledged. The authors are
grateful to Mr. Brian O'Connor at Planning Department of Cape May
County, New Jersey, for data information and the anonymous reviewers for
their valuable suggestions.
NR 36
TC 7
Z9 7
U1 5
U2 43
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0921-030X
EI 1573-0840
J9 NAT HAZARDS
JI Nat. Hazards
PD OCT
PY 2013
VL 69
IS 1
BP 141
EP 163
DI 10.1007/s11069-013-0691-1
PG 23
WC Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences;
Water Resources
SC Geology; Meteorology & Atmospheric Sciences; Water Resources
GA 227GW
UT WOS:000325101100008
ER
PT J
AU Zou, LE
Kabakova, IV
Magi, EC
Li, E
Florea, C
Aggarwal, ID
Shaw, B
Sanghera, JS
Eggleton, BJ
AF Zou, L. E.
Kabakova, I. V.
Maegi, E. C.
Li, E.
Florea, C.
Aggarwal, I. D.
Shaw, B.
Sanghera, J. S.
Eggleton, B. J.
TI Efficient inscription of Bragg gratings in As2S3 fibers using near
bandgap light
SO OPTICS LETTERS
LA English
DT Article
ID TRANSVERSE HOLOGRAPHIC METHOD; WAVE-GUIDE; CHALCOGENIDE; FABRICATION;
IRRADIATION
AB using near bandgap light at 532 nm. The FBGs with the reflectivity of over 80% can be induced in only 80-90 s, substantially faster than in previous reports. The dynamics of the grating growth are investigated in the photosensitivity process, showing a fast blue shift of the Bragg wavelength and then a somewhat slower red shift. The aging of the grating after fabrication is also reported, indicating a 37% decay of the grating strength. (C) 2013 Optical Society of America
C1 [Zou, L. E.] Nanchang Univ, Dept Phys, Nanchang 330031, Peoples R China.
[Zou, L. E.; Kabakova, I. V.; Maegi, E. C.; Li, E.; Eggleton, B. J.] Univ Sydney, Sch Phys, Ctr Ultrahigh Bandwidth Devices Opt Syst CUDOS, IPOS, Sydney, NSW 2006, Australia.
[Florea, C.; Aggarwal, I. D.] Sotera Def Solut, Annapolis Jct, MD 20701 USA.
[Shaw, B.; Sanghera, J. S.] US Naval Res Lab, Washington, DC 20375 USA.
RP Zou, LE (reprint author), Nanchang Univ, Dept Phys, Nanchang 330031, Peoples R China.
EM Linerzou@gmail.com
RI li, enbang/E-9471-2011
FU National Natural Science Foundation of China [60967003, 61077042,
61265002]; Scientific Research Program Foundation of Jiangxi Provincial
Education Department, China [GJJ11303]
FX L. E. Zou gratefully acknowledges the hospitality support of the
Eggleton group during his visit and the suggestion from S. C. Yao and Y.
D. Ge at the Nanchang University.. This work was also supported by
National Natural Science Foundation of China (Nos. 60967003, 61077042,
and 61265002), and the Scientific Research Program Foundation of Jiangxi
Provincial Education Department (No. GJJ11303), China.
NR 22
TC 4
Z9 5
U1 0
U2 17
PU OPTICAL SOC AMER
PI WASHINGTON
PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA
SN 0146-9592
EI 1539-4794
J9 OPT LETT
JI Opt. Lett.
PD OCT 1
PY 2013
VL 38
IS 19
BP 3850
EP 3853
DI 10.1364/OL.38.003850
PG 4
WC Optics
SC Optics
GA 236MZ
UT WOS:000325802800039
PM 24081069
ER
PT J
AU Mayo, DH
Peng, Y
Zavalij, P
Bowen, KH
Eichhorn, BW
AF Mayo, Dennis H.
Peng, Yang
Zavalij, Peter
Bowen, Kit H.
Eichhorn, Bryan W.
TI Aluminium(III) amidinates formed from reactions of 'AlCl' with lithium
amidinates
SO ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS
LA English
DT Article
DE crystal structure; aluminium(III) amidinates; disorder
ID COMPLEXES
AB The disproportionation of AlCl(THF)(n) (THF is tetrahydrofuran) in the presence of lithium amidinate species gives aluminium(III) amidinate complexes with partial or full chloride substitution. Three aluminium amidinate complexes formed during the reaction between aluminium monochloride and lithium amidinates are presented. The homoleptic complex tris(N,N'-diisopropylbenzimidamido)aluminium(III), [Al(C13H19N2)(3)] or Al{PhC[N(i-Pr)](2)}(3), (I), crystallizes from the same solution as the heteroleptic complex chloridobis(N,N'-diisopropylbenzimidamido)aluminium(III), [Al(C13H19N2)(2)Cl] or Al{PhC[N(i-Pr)](2)}(2)Cl, (II). Both have two crystallographically independent molecules per asymmetric unit (Z' = 2) and (I) shows disorder in four of its N(i-Pr) groups. Changing the ligand substituent to the bulkier cyclohexyl allows the isolation of the partial THF solvate chloridobis(N,N'-dicyclohexylbenzimidamido)aluminium(III) tetrahydrofuran 0.675-solvate, [Al(C19H27N2)(2)Cl]center dot 0.675C(4)H(8)O or Al[PhC(NCy)(2)](2)Cl center dot 0.675THF, (III). Despite having a two-fold rotation axis running through its Al and Cl atoms, (III) has a similar molecular structure to that of (II).
C1 [Mayo, Dennis H.] Naval Surface Warfare Ctr, Indian Head Div, Indian Head, MD 20640 USA.
[Peng, Yang; Zavalij, Peter; Eichhorn, Bryan W.] Univ Maryland, Dept Chem & Biochem, College Pk, MD 20742 USA.
[Bowen, Kit H.] Johns Hopkins Univ, Dept Chem, Baltimore, MD 21218 USA.
[Bowen, Kit H.] Johns Hopkins Univ, Dept Mat Sci, Baltimore, MD 21218 USA.
RP Mayo, DH (reprint author), Naval Surface Warfare Ctr, Indian Head Div, 4104 Evans Way,Suite 102, Indian Head, MD 20640 USA.
EM dmayo1@umd.edu; eichhorn@umd.edu
RI Zavalij, Peter/H-3817-2012
OI Zavalij, Peter/0000-0001-5762-3469
FU AFOSR [FA9550-11-1-0171]; NSF [013367-001]; DTRA; ONR In-House Lab
Independent Research; ASEE Science, Mathematics, and Research for
Transformation (SMART) Fellowship Program; Air Force Office of
Scientific Research
FX The authors thank AFOSR (grant No. FA9550-11-1-0171), the NSF (grant No.
013367-001), DTRA, and ONR In-House Lab Independent Research for
financial support. DHM acknowledges the ASEE Science, Mathematics, and
Research for Transformation (SMART) Fellowship Program for support. KB
thanks the Air Force Office of Scientific Research for support.
NR 11
TC 1
Z9 1
U1 0
U2 8
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0108-2701
J9 ACTA CRYSTALLOGR C
JI Acta Crystallogr. Sect. C-Cryst. Struct. Commun.
PD OCT
PY 2013
VL 69
BP 1120
EP +
DI 10.1107/S0108270113023135
PN 10
PG 38
WC Chemistry, Multidisciplinary; Crystallography
SC Chemistry; Crystallography
GA 229SQ
UT WOS:000325288000009
PM 24096498
ER
PT J
AU Boyko, EJ
Seelig, AD
Jacobson, IG
Hooper, TI
Smith, B
Smith, TC
Crum-Cianflone, NF
AF Boyko, Edward J.
Seelig, Amber D.
Jacobson, Isabel G.
Hooper, Tomoko I.
Smith, Besa
Smith, Tyler C.
Crum-Cianflone, Nancy F.
CA Millennium Cohort Study Team
TI Sleep Characteristics, Mental Health, and Diabetes Risk A prospective
study of US military service members in the Millennium Cohort Study
SO DIABETES CARE
LA English
DT Article
ID POSTTRAUMATIC-STRESS-DISORDER; INSULIN-RESISTANCE; COMBAT DEPLOYMENT;
LEPTIN LEVELS; PRIMARY-CARE; FOLLOW-UP; DURATION; POPULATION;
DEPRESSION; MELLITUS
AB OBJECTIVEResearch has suggested that a higher risk of type 2 diabetes associated with sleep characteristics exists. However, studies have not thoroughly assessed the potential confounding effects of mental health conditions associated with alterations in sleep.RESEARCH DESIGN AND METHODSWe prospectively assessed the association between sleep characteristics and self-reported incident diabetes among Millennium Cohort Study participants prospectively followed over a 6-year time period. Surveys are administered approximately every 3 years and collect self-reported data on demographics, height, weight, lifestyle, features of military service, sleep, clinician-diagnosed diabetes, and mental health conditions assessed by the PRIME-MD Patient Health Questionnaire and the PTSD Checklist-Civilian Version. Statistical methods for longitudinal data were used for data analysis.RESULTSWe studied 47,093 participants (mean 34.9 years of age; mean BMI 26.0 kg/m(2); 25.6% female). During 6 years of follow-up, 871 incident diabetes cases occurred (annual incidence 3.6/1,000 person-years). In univariate analyses, incident diabetes was significantly more likely among participants with self-reported trouble sleeping, sleep duration <6 h, and sleep apnea. Participants reporting incident diabetes were also significantly older, of nonwhite race, of higher BMI, less likely to have been deployed, and more likely to have reported baseline symptoms of panic, anxiety, posttraumatic stress disorder, and depression. After adjusting for covariates, trouble sleeping (odds ratio 1.21 [95% CI 1.03-1.42]) and sleep apnea (1.78 [1.39-2.28]) were significantly and independently related to incident diabetes.CONCLUSIONSTrouble sleeping and sleep apnea predict diabetes risk independent of mental health conditions and other diabetes risk factors.
C1 [Boyko, Edward J.] Dept Vet Affairs Puget Sound Hlth Care Syst, Seattle Epidemiol Res & Informat Ctr, Seattle, WA USA.
[Seelig, Amber D.; Jacobson, Isabel G.; Smith, Besa; Crum-Cianflone, Nancy F.] Naval Hlth Res Ctr, Deployment Hlth Res Dept, San Diego, CA USA.
[Hooper, Tomoko I.; Smith, Tyler C.] Uniformed Serv Univ Hlth Sci, Dept Prevent Med & Biometr, Bethesda, MD 20814 USA.
RP Boyko, EJ (reprint author), Dept Vet Affairs Puget Sound Hlth Care Syst, Seattle Epidemiol Res & Informat Ctr, Seattle, WA USA.
EM eboyko@uw.edu
FU DoD [60002]; Military Operational Medicine Research Program of the U.S.
Army Medical Research and Materiel Command (Fort Detrick, MD);
Department of Veterans Affairs Puget Sound
FX This study represents report 12-59, supported by the DoD, under work
unit no. 60002. 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, MD). The Department of
Veterans Affairs Puget Sound supported E.J.B.'s involvement in this
research.
NR 40
TC 23
Z9 24
U1 0
U2 13
PU AMER DIABETES ASSOC
PI ALEXANDRIA
PA 1701 N BEAUREGARD ST, ALEXANDRIA, VA 22311-1717 USA
SN 0149-5992
J9 DIABETES CARE
JI Diabetes Care
PD OCT
PY 2013
VL 36
IS 10
BP 3154
EP 3161
DI 10.2337/DC13-0042
PG 8
WC Endocrinology & Metabolism
SC Endocrinology & Metabolism
GA 222RT
UT WOS:000324749500056
PM 23835691
ER
PT J
AU Galliott, JC
Strawser, BJ
AF Galliott, Jai C.
Strawser, Bradley J.
TI Targeted Killings: Law and Morality in an Asymmetric World
SO ETHICS
LA English
DT Book Review
C1 [Galliott, Jai C.] Macquarie Univ, N Ryde, NSW 2109, Australia.
[Strawser, Bradley J.] USN, Postgrad Sch, Stennis Space Ctr, MS USA.
RP Galliott, JC (reprint author), Macquarie Univ, N Ryde, NSW 2109, Australia.
NR 1
TC 0
Z9 0
U1 0
U2 5
PU UNIV CHICAGO PRESS
PI CHICAGO
PA 1427 E 60TH ST, CHICAGO, IL 60637-2954 USA
SN 0014-1704
J9 ETHICS
JI Ethics
PD OCT 1
PY 2013
VL 124
IS 1
BP 181
EP 187
DI 10.1086/671407
PG 7
WC Ethics; Philosophy
SC Social Sciences - Other Topics; Philosophy
GA 227TH
UT WOS:000325137000011
ER
PT J
AU Gattass, RR
Shaw, LB
Kung, FH
Gibson, DJ
Nguyen, VQ
Chin, GD
Busse, LE
Aggarwal, ID
Sanghera, JS
AF Gattass, Rafael R.
Shaw, L. Brandon
Kung, Frederic H.
Gibson, Daniel J.
Nguyen, Vinh Q.
Chin, Geoffrey D.
Busse, Lynda E.
Aggarwal, Ishwar D.
Sanghera, Jasbinder S.
TI Infrared Fiber N x 1 Multimode Combiner
SO IEEE PHOTONICS JOURNAL
LA English
DT Article
DE Laser beam combining; MWIR devices; fiber optics systems; mid-wave
infrared fibers; chalcogenide fiber
ID CHALCOGENIDE GLASS; OPTICAL-FIBER; COUPLERS
AB Fiber-based multimode combiners allow for wavelength and power scaling of laser sources while maintaining a common emission aperture and divergence. For applications in the mid-infrared spectral band, chalcogenide glass optical fibers are one of the few alternatives with high-power beam delivery. We demonstrated a 7 x 1 multimode fiber combiner based on a sulfide-based multimode chalcogenide fiber with > 76% per-port transmission. Wavelength combining and power scaling in the mid-infrared are demonstrated through the fiber combiner.
C1 [Gattass, Rafael R.; Shaw, L. Brandon; Gibson, Daniel J.; Nguyen, Vinh Q.; Busse, Lynda E.; Sanghera, Jasbinder S.] USN, Res Lab, Washington, DC 20375 USA.
[Kung, Frederic H.; Chin, Geoffrey D.] Univ Res Fdn, Greenbelt, MD 20770 USA.
[Aggarwal, Ishwar D.] Sotera Def Solut, Crofton, MD 21114 USA.
RP Gattass, RR (reprint author), USN, Res Lab, Washington, DC 20375 USA.
EM rafael.gattass@nrl.navy.mil
NR 13
TC 3
Z9 3
U1 0
U2 22
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1943-0655
J9 IEEE PHOTONICS J
JI IEEE Photonics J.
PD OCT
PY 2013
VL 5
IS 5
AR 7100905
DI 10.1109/JPHOT.2013.2281611
PG 5
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA 231IR
UT WOS:000325410400028
ER
PT J
AU Wang, A
Tadjer, MJ
Anderson, TJ
Baranyai, R
Pomeroy, JW
Feygelson, TI
Hobart, KD
Pate, BB
Calle, F
Kuball, M
AF Wang, Ashu
Tadjer, Marko J.
Anderson, Travis J.
Baranyai, Roland
Pomeroy, James W.
Feygelson, Tatyana I.
Hobart, Karl D.
Pate, Bradford B.
Calle, Fernando
Kuball, Martin
TI Impact of Intrinsic Stress in Diamond Capping Layers on the Electrical
Behavior of AlGaN/GaN HEMTs
SO IEEE TRANSACTIONS ON ELECTRON DEVICES
LA English
DT Article
DE AlGaN/GaN; electro-thermo-mechanical coupling; finite element modeling;
nanocrystalline diamond (NCD); stress
ID FIELD-EFFECT TRANSISTORS; MOBILITY TRANSISTORS; STRAIN; PASSIVATION
AB A finite-element model coupling 2-D electron gas (2-DEG) density, piezoelectric polarization charge QP, and intrinsic stress induced by a nanocrystalline diamond capping layer, was developed for AlGaN/GaN high electron mobility transistors. Assuming the surface potential is unchanged by an additional stress from diamond capping, tensile stress from the diamond cap leads to an additional tensile stress in the heterostructure and, thus an increase in the 2-DEG under the gate. As a result, additional compressive stress near the gate edges would develop and lead to decreased 2-DEG in the regions between the source and drain contacts (SDCs). Increased saturation drain current will be due to the reduced total resistance between SDC. Integration of the 2-DEG density from SDC revealed a redistribution of sheet density with total sheet charge concentration remaining unchanged. The modeling results were compared with the experimental data from Raman spectroscopy and I-V characterization, and good agreements were obtained.
C1 [Wang, Ashu; Calle, Fernando] Univ Politecn Madrid, ISOM, E-28040 Madrid, Spain.
[Wang, Ashu; Calle, Fernando] Univ Politecn Madrid, Dpto Ingn Elect, ETSI Telecomunicac, E-28040 Madrid, Spain.
[Tadjer, Marko J.] Univ Politecn Madrid, E-28040 Madrid, Spain.
[Anderson, Travis J.; Feygelson, Tatyana I.; Hobart, Karl D.; Pate, Bradford B.] Naval Res Lab, Washington, DC 20375 USA.
[Baranyai, Roland; Pomeroy, James W.; Kuball, Martin] Univ Bristol, Ctr Device Thermog & Reliabil, Bristol BS8 1TL, Avon, England.
RP Wang, A (reprint author), Univ Politecn Madrid, ISOM, E-28040 Madrid, Spain.
EM awang@isom.upm.es; marko.tadjer.ctr@nrl.navy.mil;
tanders@estd.nrl.navy.mil; Roland.Baranyai@bristol.ac.uk;
James.Pomeroy@bristol.ac.uk; tatyana.feygelson@nrl.navy.mil;
karl.hobart@nrl.navy.mil; brad.pate@nrl.navy.mil; fernando.calle@upm.es;
Martin.Kuball@bristol.ac.uk
RI Pate, Bradford/B-4752-2010;
OI Pate, Bradford/0000-0002-3288-2947; CALLE GOMEZ,
FERNANDO/0000-0001-7869-6704
FU Consolider RUE [CSD2009-00046]; AEGAN [TEC2009-14307-C02-01]; CAVE
[TEC2012-38247]; Ministerio de Economia y Competitividad of Spain; CEI
Campus Moncloa, UPM-UCM, Madrid, Spain; ASEE; Office of Naval Research
FX This work was supported in part by the Projects Consolider RUE under
Grant CSD2009-00046, AEGAN under Grant TEC2009-14307-C02-01, CAVE under
Grant TEC2012-38247, the Ministerio de Economia y Competitividad of
Spain, the CEI Campus Moncloa, UPM-UCM, Madrid, Spain, and the ASEE. The
research at NRL was supported by the Office of Naval Research. The
review of this paper was arranged by Editor K. J. Chen.
NR 34
TC 4
Z9 4
U1 1
U2 32
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0018-9383
J9 IEEE T ELECTRON DEV
JI IEEE Trans. Electron Devices
PD OCT
PY 2013
VL 60
IS 10
SI SI
BP 3149
EP 3156
DI 10.1109/TED.2013.2275031
PG 8
WC Engineering, Electrical & Electronic; Physics, Applied
SC Engineering; Physics
GA 224YL
UT WOS:000324928900025
ER
PT J
AU Blackwell, WJ
Adams, I
Camps, A
Kunkee, D
AF Blackwell, William J.
Adams, Ian
Camps, Adriano
Kunkee, David
TI Foreword to the Special Issue on Radio Frequency Interference:
Identification, Mitigation, and Impact Assessment
SO IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
LA English
DT Editorial Material
C1 MIT, Lincoln Lab, Lexington, MA 02420 USA.
[Adams, Ian] Naval Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
[Camps, Adriano] Univ Politecn Catalunya BarcelonaTech, Dept Signal Theory & Commun, Barcelona, Spain.
[Kunkee, David] Aerosp Corp, Environm Satellite Syst, Los Angeles, CA 90009 USA.
RP Blackwell, WJ (reprint author), MIT, Lincoln Lab, Lexington, MA 02420 USA.
EM wjb@ll.mit.edu; ian.adams@nrl.navy.mil; camps@tsc.upc.edu;
david.kunkee@aero.org
RI Camps, Adriano/D-2592-2011
OI Camps, Adriano/0000-0002-9514-4992
NR 0
TC 1
Z9 1
U1 1
U2 9
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 OCT
PY 2013
VL 51
IS 10
SI SI
BP 4915
EP 4917
DI 10.1109/TGRS.2013.2282862
PG 3
WC Geochemistry & Geophysics; Engineering, Electrical & Electronic; Remote
Sensing; Imaging Science & Photographic Technology
SC Geochemistry & Geophysics; Engineering; Remote Sensing; Imaging Science
& Photographic Technology
GA 230XX
UT WOS:000325377900001
ER
PT J
AU Karimian, A
Yardim, C
Haack, T
Gerstoft, P
Hodgkiss, WS
Rogers, T
AF Karimian, Ali
Yardim, Caglar
Haack, Tracy
Gerstoft, Peter
Hodgkiss, William S.
Rogers, Ted
TI Toward the Assimilation of the Atmospheric Surface Layer Using Numerical
Weather Prediction and Radar Clutter Observations
SO JOURNAL OF APPLIED METEOROLOGY AND CLIMATOLOGY
LA English
DT Article
DE Inverse methods; Statistical techniques; Ensembles; Nowcasting; Data
assimilation; Mesoscale models
ID EVAPORATION DUCT; SEA CLUTTER; BULK PARAMETERIZATION; REFRACTIVITY;
MODEL; AIR; WATER
AB Radio wave propagation on low-altitude paths over the ocean above 2 GHz is significantly affected by negative refractivity gradients in the atmospheric surface layer, which form what is often referred to as an evaporation duct (ED). Refractivity from clutter (RFC) is an inversion approach for the estimation of the refractivity profile from radar clutter, and RFC-ED refers to its implementation for the case of evaporation ducts. An approach for fusing RFC-ED output with evaporation duct characterization that is based on ensemble forecasts from a numerical weather prediction (NWP) model is examined here. Three conditions of air-sea temperature difference (ASTD) are examined. Synthetic radar clutter observations are generated using the Advanced Propagation Model. The impacts of ASTD on the evaporation duct refractivity profile, atmospheric parameter inversion, and propagation factor distributions are studied. Relative humidity at a reference height and ASTD are identified as state variables. Probability densities from NWP ensembles, RFC-ED, and joint inversions are compared. It is demonstrated that characterization of the near-surface atmosphere by combining RFC-ED and NWP reduces the estimation uncertainty of ASTD and relative humidity in an evaporation duct, with respect to using either method alone.
C1 [Karimian, Ali; Yardim, Caglar; Gerstoft, Peter; Hodgkiss, William S.] Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92093 USA.
[Haack, Tracy] Naval Res Lab, Monterey, CA USA.
[Rogers, Ted] Space & Naval Warfare Syst Ctr, Atmospher Propagat Branch, San Diego, CA USA.
RP Karimian, A (reprint author), Univ Calif San Diego, Scripps Inst Oceanog, 291 Rosecrans St, San Diego, CA 92106 USA.
EM alik@ucsd.edu
RI Gerstoft, Peter/B-2842-2009;
OI Gerstoft, Peter/0000-0002-0471-062X
FU Office of Naval Research [N00014-13-1-0360]
FX This work was supported by the Office of Naval Research under Grant
N00014-13-1-0360.
NR 41
TC 9
Z9 9
U1 0
U2 9
PU AMER METEOROLOGICAL SOC
PI BOSTON
PA 45 BEACON ST, BOSTON, MA 02108-3693 USA
SN 1558-8424
J9 J APPL METEOROL CLIM
JI J. Appl. Meteorol. Climatol.
PD OCT
PY 2013
VL 52
IS 10
BP 2345
EP 2355
DI 10.1175/JAMC-D-12-0320.1
PG 11
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 232GY
UT WOS:000325482000010
ER
PT J
AU Diaz, MA
Bik, EM
Carlin, KP
Venn-Watson, SK
Jensen, ED
Jones, SE
Gaston, EP
Relman, DA
Versalovic, J
AF Diaz, M. A.
Bik, E. M.
Carlin, K. P.
Venn-Watson, S. K.
Jensen, E. D.
Jones, S. E.
Gaston, E. P.
Relman, D. A.
Versalovic, J.
TI Identification of Lactobacillus strains with probiotic features from the
bottlenose dolphin (Tursiops truncatus)
SO JOURNAL OF APPLIED MICROBIOLOGY
LA English
DT Article
DE bottlenose dolphin; cytokine modulation; indigenous microbiota;
Lactobacillus; pathogen inhibition; probiotic
ID LACTIC-ACID BACTERIA; GNOTOBIOTIC MURINE MODEL; HELICOBACTER-PYLORI; GUT
MICROBIOTA; BREAST-MILK; SP-NOV.; INTESTINAL MICROBIOTA;
IMMUNE-RESPONSE; GENE-EXPRESSION; MARINE MAMMALS
AB Aims: In order to develop complementary health management strategies for marine mammals, we used culture-based and culture-independent approaches to identify gastrointestinal lactobacilli of the common bottlenose dolphin, Tursiops truncatus.
Methods and Results: We screened 307 bacterial isolates from oral and rectal swabs, milk and gastric fluid, collected from 38 dolphins in the U.S. Navy Marine Mammal Program, for potentially beneficial features. We focused our search on lactobacilli and evaluated their ability to modulate TNF secretion by host cells and inhibit growth of pathogens. We recovered Lactobacillus salivarius strains which secreted factors that stimulated TNF production by human monocytoid cells. These Lact.salivarius isolates inhibitedgrowth of selected marine mammal and human bacterial pathogens. In addition, we identified a novel Lactobacillus species by culture and direct sequencing with 96 center dot 3% 16S rDNA sequence similarity to Lactobacillus ceti.
Conclusions: Dolphin-derived Lact.salivarius isolates possess features making them candidate probiotics for clinical studies in marine mammals.
Significance and Impact of the Study: This is the first study to isolate lactobacilli from dolphins, including a novel Lactobacillus species and a new strain of Lact.salivarius, with potential for veterinary probiotic applications. The isolation and identification of novel Lactobacillus spp. and other indigenous microbes from bottlenose dolphins will enable the study of the biology of symbiotic members of the dolphin microbiota and facilitate the understanding of the microbiomes of these unique animals.
C1 [Diaz, M. A.; Gaston, E. P.; Versalovic, J.] Baylor Coll Med, Dept Pathol & Immunol, Houston, TX 77030 USA.
[Diaz, M. A.; Versalovic, J.] Texas Childrens Hosp, Dept Pathol, Houston, TX 77030 USA.
[Bik, E. M.; Relman, D. A.] Stanford Univ, Sch Med, Dept Microbiol & Immunol, Stanford, CA 94305 USA.
[Bik, E. M.; Relman, D. A.] Vet Affairs Palo Alto Hlth Care Syst, Palo Alto, CA USA.
[Carlin, K. P.; Venn-Watson, S. K.] Natl Marine Mammal Fdn, San Diego, CA USA.
[Jensen, E. D.] Space & Naval Warfare Syst Ctr Pacific, US Navy Marine Mammal Program, San Diego, CA USA.
[Jones, S. E.] Loyola Univ, Med Ctr, Dept Microbiol & Immunol, Maywood, IL 60153 USA.
[Relman, D. A.] Stanford Univ, Sch Med, Dept Med, Stanford, CA 94305 USA.
RP Diaz, MA (reprint author), Feigin Ctr, 1102 Bates Ave,Ste 830, Houston, TX 77030 USA.
EM mdiaz3@gmail.com
OI Diaz, Maria Alejandra/0000-0001-5537-5510
FU Office of Naval Research [N000140710287]; SMART program; Thomas C. and
Joan M. Merigan Endowment at Stanford University
FX This work was supported by Office of Naval Research Grant N000140710287
(J.V., D.A.R.). E. P. Gaston was supported by the SMART program. We
would like to thank Laura A. Millecker and Ruth Ann Luna for assistance
with DiversiLab strain typing, and Angela Major for microscopy work.
D.A.R. is supported by the Thomas C. and Joan M. Merigan Endowment at
Stanford University.
NR 88
TC 5
Z9 6
U1 5
U2 35
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1364-5072
J9 J APPL MICROBIOL
JI J. Appl. Microbiol.
PD OCT
PY 2013
VL 115
IS 4
BP 1037
EP 1051
DI 10.1111/jam.12305
PG 15
WC Biotechnology & Applied Microbiology; Microbiology
SC Biotechnology & Applied Microbiology; Microbiology
GA 226CO
UT WOS:000325012200013
PM 23855505
ER
PT J
AU Ma, BB
Lien, RC
Ko, DS
AF Ma, Barry B.
Lien, Ren-Chieh
Ko, Dong S.
TI The variability of internal tides in the Northern South China Sea
SO JOURNAL OF OCEANOGRAPHY
LA English
DT Article
DE Internal tide; Horizontal kinetic energy; Energy flux; Kuroshio; South
China Sea; Luzon Strait
ID SOLITARY WAVES; PROPAGATION; KUROSHIO; ROTATION; ORIGIN; OCEAN; SHEAR;
MODEL
AB An array of three bottom-mounted ADCP moorings was deployed on the prevailing propagation path of strong internal tides for nearly 1 year across the continental slope in the northern South China Sea. These velocity measurements are used to study the intra-annual variability of diurnal and semidiurnal internal tidal energy in the region. A numerical model, the Luzon Strait Ocean Nowcast/Forecast System developed at the U.S. Naval Research Laboratory that covers the northern South China Sea and the Kuroshio, is used to interpret the observed variation of internal tidal energy on the Dongsha slope. Internal tides are generated primarily at the two submarine ridges in the Luzon Strait. At the western ridge generation site, the westward energy flux of the diurnal internal tide is sensitive to the stratification and isopycnal slope associated with the Kuroshio. The horizontal shear at the Kuroshio front does not modify the propagation path of either diurnal or semidiurnal tides because the relative vorticity of the Kuroshio in Luzon Strait is not strong enough to increase the effective inertial frequency to the intrinsic frequency of the internal tides. The variation of internal tidal energy on the continental slope and Dongsha plateau can be attributed to the variation in tidal beam propagation in the northern South China Sea.
C1 [Ma, Barry B.; Lien, Ren-Chieh] Univ Washington, Appl Phys Lab, Seattle, WA 98105 USA.
[Ko, Dong S.] Naval Res Lab, Stennis Space Ctr, MS 39529 USA.
RP Ma, BB (reprint author), Univ Washington, Appl Phys Lab, 1013 NE 40th St, Seattle, WA 98105 USA.
EM barry@apl.uw.edu
FU U.S. Office of Naval Research [N00014-09-1-0279]; [N00014-05WX-2-0647]
FX The authors thank the captain and crew of the R/V Ocean Researcher I and
R/V Ocean Researcher III, and Mr. Wen-Hwa Her of the National Taiwan
University for their skillful mooring operations. Discussions with Frank
Henyey, Eric D'Asaro, and Eric Kunze are greatly appreciated. The
comments from two anonymous reviewers helped greatly to improve the
presentation of the manuscript. The experiment and analysis are
supported by the U.S. Office of Naval Research grant N00014-09-1-0279.
DSK is supported under grant N00014-05WX-2-0647.
NR 31
TC 13
Z9 14
U1 2
U2 29
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0916-8370
J9 J OCEANOGR
JI J. Oceanogr.
PD OCT
PY 2013
VL 69
IS 5
BP 619
EP 630
DI 10.1007/s10872-013-0198-0
PG 12
WC Oceanography
SC Oceanography
GA 227UX
UT WOS:000325141800009
ER
PT J
AU Abarca, SF
Montgomery, MT
AF Abarca, Sergio F.
Montgomery, Michael T.
TI Essential Dynamics of Secondary Eyewall Formation
SO JOURNAL OF THE ATMOSPHERIC SCIENCES
LA English
DT Article
DE Hurricanes; typhoons; Mesoscale processes
ID HURRICANE BOUNDARY-LAYER; GENERATED POTENTIAL VORTICITY; SEA INTERACTION
THEORY; VORTEX ROSSBY-WAVES; TROPICAL CYCLONES; NUMERICAL SIMULATION;
INERTIAL STABILITY; TURBULENT FLUXES; PART II; MODEL
AB The authors conduct an analysis of the dynamics of secondary eyewall formation in two modeling frameworks to obtain a more complete understanding of the phenomenon. The first is a full-physics, three-dimensional mesoscale model in which the authors examine an idealized hurricane simulation that undergoes a canonical eyewall replacement cycle. Analysis of the mesoscale simulation shows that secondary eyewall formation occurs in a conditionally unstable environment, questioning the applicability of moist-neutral viewpoints and related mathematical formulations thereto for studying this process of tropical cyclone intensity change. The analysis offers also new evidence in support of a recent hypothesis that secondary eyewalls form via a progressive boundary layer control of the vortex dynamics in response to a radial broadening of the tangential wind field.The second analysis framework is an axisymmetric, nonlinear, time-dependent, slab boundary layer model with radial diffusion. When this boundary layer model is forced with the aforementioned mesoscale model's radial profile of pressure at the top of the boundary layer, it generates a secondary tangential wind maximum consistent with that from the full-physics, mesoscale simulation. These findings demonstrate that the boundary layer dynamics alone are capable of developing secondary wind maxima without prescribed secondary heat sources and/or invocation of special inertial stability properties of the swirling flow either within or above the boundary layer. Finally, the time-dependent slab model reveals that the simulated secondary wind maximum contracts inward, as secondary eyewalls do in mesoscale models and in nature, pointing to a hitherto unrecognized role of unbalanced dynamics in the eyewall replacement cycle.
C1 [Abarca, Sergio F.; Montgomery, Michael T.] Naval Postgrad Sch, Monterey, CA 93943 USA.
RP Abarca, SF (reprint author), Naval Postgrad Sch, Dept Meteorol, Root Hall,Room 248,589 Dyer Rd, Monterey, CA 93943 USA.
EM sfabarca@nps.edu
FU National Research Council (NRC), through its Research Associateship
Program; host institution, the Naval Postgraduate School (NPS) in
Monterey, California; Office of Naval Research (ONR) [N0001411WX20095];
National Science Foundation (NSF) [AGS 0733380]
FX The first author gratefully acknowledges the support from the National
Research Council (NRC), through its Research Associateship Program, and
the host institution, the Naval Postgraduate School (NPS) in Monterey,
California. The work was partially supported by the Office of Naval
Research (ONR), through Award N0001411WX20095, and by the National
Science Foundation (NSF) through Award AGS 0733380. The authors thank
Timothy Dunkerton for the valuable discussion on the structure of
equivalent potential temperature and absolute angular momentum and Roger
Smith for his perceptive comments on the final draft of the manuscript.
Finally, the authors thank Wesley Terwey for his guidance in the
accessing of the mesoscale simulation data.
NR 75
TC 23
Z9 23
U1 0
U2 8
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 OCT
PY 2013
VL 70
IS 10
BP 3216
EP 3230
DI 10.1175/JAS-D-12-0318.1
PG 15
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 227XB
UT WOS:000325147900013
ER
PT J
AU Canning, REA
Sun, M
Sanders, JS
Clarke, TE
Fabian, AC
Giacintucci, S
Lal, DV
Werner, N
Allen, SW
Donahue, M
Edge, AC
Johnstone, RM
Nulsen, PEJ
Salome, P
Sarazin, CL
AF Canning, R. E. A.
Sun, M.
Sanders, J. S.
Clarke, T. E.
Fabian, A. C.
Giacintucci, S.
Lal, D. V.
Werner, N.
Allen, S. W.
Donahue, M.
Edge, A. C.
Johnstone, R. M.
Nulsen, P. E. J.
Salome, P.
Sarazin, C. L.
TI A multiwavelength view of cooling versus AGN heating in the X-ray
luminous cool-core of Abell 3581
SO MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
LA English
DT Article
DE galaxies: active; galaxies: clusters: intracluster medium; Galaxies:
groups: individual: Abell 3581; galaxies: ISM
ID BRIGHTEST CLUSTER GALAXIES; ACTIVE GALACTIC NUCLEI; MOLECULAR-HYDROGEN
EMISSION; INTEGRAL FIELD SPECTROSCOPY; PERSEUS CLUSTER; STAR-FORMATION;
CHANDRA OBSERVATION; 2A 0335+096; NGC 1275; TELESCOPE OBSERVATIONS
AB We report the results of a multiwavelength study of the nearby galaxy group, Abell 3581 (z = 0.0218). This system hosts the most luminous cool core of any nearby group and exhibits active radio mode feedback from the supermassive black hole in its brightest group galaxy, IC 4374. The brightest galaxy has suffered multiple active galactic nucleus outbursts, blowing bubbles into the surrounding hot gas, which have resulted in the uplift of cool ionized gas into the surrounding hot intragroup medium. High velocities, indicative of an outflow, are observed close to the nucleus and coincident with the radio jet. Thin dusty filaments accompany the uplifted, ionized gas. No extended star formation is observed; however, a young cluster is detected just north of the nucleus. The direction of rise of the bubbles has changed between outbursts. This directional change is likely due to sloshing motions of the intragroup medium. These sloshing motions also appear to be actively stripping the X-ray cool core, as indicated by a spiralling cold front of high-metallicity, low-temperature, low entropy gas.
C1 [Canning, R. E. A.; Werner, N.; Allen, S. W.] Stanford Univ, KIPAC, Stanford, CA 94305 USA.
[Canning, R. E. A.; Werner, N.; Allen, S. W.] Stanford Univ, Dept Phys, Stanford, CA 94305 USA.
[Sun, M.] Eureka Sci Inc, Oakland, CA 94602 USA.
[Sanders, J. S.] Max Planck Inst Extraterr Phys MPE, D-85748 Garching, Germany.
[Clarke, T. E.] Naval Res Lab, Washington, DC 20375 USA.
[Fabian, A. C.; Johnstone, R. M.] Univ Cambridge, Inst Astron, Cambridge CB3 0HA, England.
[Giacintucci, S.] Univ Maryland, Dept Astron, College Pk, MD 20742 USA.
[Giacintucci, S.] Univ Maryland, Joint Space Sci Inst, College Pk, MD 20742 USA.
[Lal, D. V.] Natl Ctr Radio Astrophys NCRA TIFR, Pune 411007, Maharashtra, India.
[Allen, S. W.] SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA.
[Donahue, M.] Michigan State Univ, E Lansing, MI 48824 USA.
[Edge, A. C.] Univ Durham, Inst Computat Cosmol, Durham DH1 3LE, England.
[Nulsen, P. E. J.] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA.
[Salome, P.] Observ Paris, LERMA, F-75014 Paris, France.
[Salome, P.] Observ Paris, CNRS UMR8112, F-75014 Paris, France.
[Sarazin, C. L.] Univ Virginia, Dept Astron, Charlottesville, VA 22904 USA.
RP Canning, REA (reprint author), Stanford Univ, KIPAC, 452 Lomita Mall, Stanford, CA 94305 USA.
EM rcanning@stanford.edu
OI Edge, Alastair/0000-0002-3398-6916; Sanders, Jeremy/0000-0003-2189-4501;
Nulsen, Paul/0000-0003-0297-4493
FU NASA issued by JPL/Caltech [1428053]; Cambridge Philosophical Society;
Royal Astronomical Society; NASA [GO1-12103A, NNH12CG03C, HST-GO-12373,
PF0-110071, NAS8-03060, G01-12169X]; National Aeronautics and Space
Administration [GO1-12159Z]; 6.1 Base; Chandra X-ray Center (CXC); US
Department of Energy [DE-AC02-76SF00515]
FX Support for this work was provided by NASA through award number 1428053
issued by JPL/Caltech. REAC acknowledges a scholarship from the
Cambridge Philosophical Society and a Royal Astronomical Society grant.
MS is supported by the NASA grants GO1-12103A, NNH12CG03C and
HST-GO-12373. TEC was supported in part for this work by the National
Aeronautics and Space Administration, through Chandra Award Number
GO1-12159Z. Basic research in radio astronomy at the Naval Research
Laboratory is supported by 6.1 Base funding. SG acknowledges the support
of NASA through Einstein Postdoctoral Fellowship PF0-110071 awarded by
the Chandra X-ray Center (CXC), which is operated by SAO. SWA
acknowledges support from the US Department of Energy under contract
number DE-AC02-76SF00515. PEJN was supported by NASA contract
NAS8-03060. CLS was supported in part by NASA Chandra Grant G01-12169X.
REAC would also like to thank Anja von der Linden and Adam Mantz for
interesting and enlightening discussions. 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.
NR 109
TC 11
Z9 11
U1 1
U2 4
PU OXFORD UNIV PRESS
PI OXFORD
PA GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
SN 0035-8711
EI 1365-2966
J9 MON NOT R ASTRON SOC
JI Mon. Not. Roy. Astron. Soc.
PD OCT
PY 2013
VL 435
IS 2
BP 1108
EP 1125
DI 10.1093/mnras/stt1345
PG 18
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 229KY
UT WOS:000325264600017
ER
PT J
AU Hoppel, KW
Eckermann, SD
Coy, L
Nedoluha, GE
Allen, DR
Swadley, SD
Baker, NL
AF Hoppel, Karl W.
Eckermann, Stephen D.
Coy, Lawrence
Nedoluha, Gerald E.
Allen, Douglas R.
Swadley, Steven D.
Baker, Nancy L.
TI Evaluation of SSMIS Upper Atmosphere Sounding Channels for High-Altitude
Data Assimilation
SO MONTHLY WEATHER REVIEW
LA English
DT Article
DE Microwave observations; Nowcasting; Numerical weather prediction;
forecasting; Operational forecasting
ID SABER/TIMED TEMPERATURES 2002-2007; MIGRATING SEMIDIURNAL TIDE;
GRAVITY-WAVE DRAG; INTERANNUAL VARIABILITY; RADIATIVE-TRANSFER; LOWER
THERMOSPHERE; GLOBAL STRUCTURE; NAVDAS-AR; MODEL; MESOSPHERE
AB Upper atmosphere sounding (UAS) channels of the Special Sensor Microwave Imager/Sounder (SSMIS) were assimilated using a high-altitude version of the Navy Global Environmental Model (NAVGEM) in order to investigate their potential for operational forecasting from the surface to the mesospause. UAS radiances were assimilated into NAVGEM using the new Community Radiative Transfer Model (CRTM) that accounts for Zeeman line splitting by geomagnetic fields. UAS radiance data from April 2010 to March 2011 are shown to be in good agreement with coincident temperature measurements from the Sounding of the Atmosphere Using Broadband Emission Radiometry (SABER) instrument that were used to simulate UAS brightness temperatures. Four NAVGEM experiments were performed during July 2010 that assimilated (i) no mesospheric observations, (ii) UAS data only, (iii) SABER and Microwave Limb Sounder (MLS) mesospheric temperatures only, and (iv) SABER, MLS, and UAS data. Zonal mean temperatures and observation - forecast differences for the UAS-only and SABER+MLS experiments are similar throughout most of the mesosphere, and show large improvements over the experiment assimilating no mesospheric observations, proving that assimilation of UAS radiances can provide a reliable large-scale constraint throughout the mesosphere for operational, high-altitude analysis. This is confirmed by comparison of solar migrating tides and the quasi-two-day wave in the mesospheric analyses. The UAS-only experiment produces realistic tidal and two-day wave amplitudes in the summer mesosphere in agreement with the experiments assimilating MLS and SABER observations, whereas the experiment with no mesospheric observations produces excessively strong mesospheric winds and two-day wave amplitudes.
C1 [Hoppel, Karl W.; Eckermann, Stephen D.; Coy, Lawrence; Nedoluha, Gerald E.; Allen, Douglas R.] Naval Res Lab, Washington, DC 20375 USA.
[Swadley, Steven D.; Baker, Nancy L.] Naval Res Lab, Monterey, CA USA.
RP Hoppel, KW (reprint author), Naval Res Lab, Overlook Ave SW,Code 7227, Washington, DC 20375 USA.
EM karl.hoppel@nrl.navy.mil
FU Office of Naval Research (ONR) through the Naval Research Laboratory's
base 6.2 program; ONR's Departmental Research Initiative on the
Predictability of Seasonal and Intraseasonal Oscillations
[N0001412WX21321]; DoD High Performance Computing Modernization Program
FX This work was supported by the Office of Naval Research (ONR) through
the Naval Research Laboratory's base 6.2 program (work unit:
High-Altitude Data Assimilation for NWP) and ONR's Departmental Research
Initiative on the Predictability of Seasonal and Intraseasonal
Oscillations (Award N0001412WX21321). NAVGEM runs for this paper were
made possible by a grant of computer time by the DoD High Performance
Computing Modernization Program. We thank Gordon Wilson at AFRL for
helpful discussions about DMSP and geomagnetic data.
NR 61
TC 8
Z9 8
U1 0
U2 14
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 OCT
PY 2013
VL 141
IS 10
BP 3314
EP 3330
DI 10.1175/MWR-D-13-00003.1
PG 17
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 223UM
UT WOS:000324836800004
ER
PT J
AU Cullenbine, CA
Wood, RK
Newman, AM
AF Cullenbine, Christopher A.
Wood, R. Kevin
Newman, Alexandra M.
TI Theoretical and Computational Advances for Network Diversion
SO NETWORKS
LA English
DT Article
DE network diversion; minimum cut; complexity; mixed-integer programming;
valid inequality
ID GRAPHS; CUTS
AB The network-diversion problem (ND) is defined on a directedor undirected graph G = (V,E) having non-negative edge weights, a source vertex s, a sink vertex t, and a diversion edge e. This problem, with intelligence-gathering and war-fighting applications, seeks a minimum-weight, minimal s-t cut ECE in G such that eEC. We present (a) a new NP-completeness proof for ND on directed graphs, (b) the first polynomial-time solution algorithm for a special graph topology, (c) an improved mixed-integer programming formulation (MIP), and (d) useful valid inequalities for that MIP. The proof strengthens known results by showing, for instance, that ND is strongly NP-complete on a directed graph even when e is incident from s or into t, but not both, and even when G is acyclic; a corollary shows the NP-completeness of a vertex-deletion version of ND on undirected graphs. The polynomial-time algorithm solves ND on s-t planar graphs. Compared to a MIP from the literature, the new MIP, coupled with valid inequalities, reduces the average duality gap by 10-50% on certain classes of test problems. It can also reduce solution times by an order of magnitude. We successfully solve unweighted problems with roughly 90,000 vertices and 360,000 edges and weighted problems with roughly 10,000 vertices and 40,000 edges. (c) 2013 Wiley Periodicals, Inc. NETWORKS, Vol. 000(00), 000-000 2013
C1 Colorado Sch Mines, Div Econ & Business, Golden, CO 80401 USA.
[Cullenbine, Christopher A.; Newman, Alexandra M.] Colorado Sch Mines, Div Econ & Business, Golden, CO 80401 USA.
[Wood, R. Kevin] Naval Postgrad Sch, Dept Operat Res, Monterey, CA 93943 USA.
RP Wood, RK (reprint author), Naval Postgrad Sch, Dept Operat Res, Monterey, CA 93943 USA.
EM kwood@nps.edu
OI Wood, Kevin/0000-0002-0311-8712
FU Office of Naval Research; Air Force Office of Scientific Research;
Defense Threat Reduction Agency
FX Contract grant sponsors: Office of Naval Research, Air Force Office of
Scientific Research, and Defense Threat Reduction Agency (R.K.W.)
NR 47
TC 0
Z9 0
U1 0
U2 3
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0028-3045
J9 NETWORKS
JI Networks
PD OCT
PY 2013
VL 62
IS 3
BP 225
EP 242
DI 10.1002/net.21514
PG 18
WC Computer Science, Hardware & Architecture; Operations Research &
Management Science
SC Computer Science; Operations Research & Management Science
GA 226AL
UT WOS:000325006500005
ER
PT J
AU Zhou, C
Vurgaftman, I
Canedy, CL
Kim, CS
Kim, M
Bewley, WW
Merritt, CD
Abell, J
Meyer, JR
Hoang, A
Haddadi, A
Razeghi, M
Grayson, M
AF Zhou, Chuanle
Vurgaftman, I.
Canedy, C. L.
Kim, C. S.
Kim, M.
Bewley, W. W.
Merritt, C. D.
Abell, J.
Meyer, J. R.
Hoang, A.
Haddadi, A.
Razeghi, M.
Grayson, M.
TI Thermal conductivity tensors of the cladding and active layers of
antimonide infrared lasers and detectors
SO OPTICAL MATERIALS EXPRESS
LA English
DT Article
ID SUPERLATTICES; WAVE
AB The in-plane and cross-plane thermal conductivities of the cladding layers and active quantum wells of interband cascade lasers and type-II superlattice infrared detector are measured by the 2-wire 3 omega method. The layers investigated include InAs/AlSb superlattice cladding layers, InAs/GaInSb/InAs/AlSbW-active quantum wells, an InAs/GaSb superlattice absorber, an InAs/GaSb/AlSbM-structure, and an AlAsSb digital alloy. The in-plane thermal conductivity of the InAs/AlSb superlattice is 4-5 times higher than the cross-plane value. The isotropic thermal conductivity of the AlAsSb digital alloy matches a theoretical expectation, but it is one order of magnitude lower than the only previously-reported experimental value. (C) 2013 Optical Society of America
C1 [Zhou, Chuanle; Grayson, M.] Northwestern Univ, Evanston, IL 60208 USA.
[Vurgaftman, I.; Canedy, C. L.; Kim, C. S.; Bewley, W. W.; Merritt, C. D.; Abell, J.; Meyer, J. R.] Naval Res Lab, Washington, DC 20375 USA.
[Hoang, A.; Haddadi, A.; Razeghi, M.] Northwestern Univ, Ctr Quantum Devices, Evanston, IL 60208 USA.
[Kim, M.] Sotera Def Solut Inc, Crofton, MD 21114 USA.
RP Zhou, C (reprint author), Northwestern Univ, Evanston, IL 60208 USA.
EM m-grayson@northwestern.edu
RI Grayson, Matthew/B-7159-2009; Razeghi, Manijeh/B-7265-2009
FU AFOSR [FA-9550-09-1-0237, FA-9550-12-1-0169]; Initiative for
Sustainability and Energy at Northwestern (ISEN); NSF MRSEC
[DMR-0520513, DMR-0748856]; NSF MRSEC Fellowship; ONR
FX The work at North western was supported by AFOSR grants
FA-9550-09-1-0237 and FA-9550-12-1-0169, Initiative for Sustainability
and Energy at Northwestern (ISEN) and NSF MRSEC grants No. DMR-0520513
and No. DMR-0748856 through both instrumentation grants and an NSF MRSEC
Fellowship. Work at NRL was supported by ONR.
NR 11
TC 2
Z9 2
U1 2
U2 29
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 OCT 1
PY 2013
VL 3
IS 10
BP 1632
EP 1640
DI 10.1364/OME.3.001632
PG 9
WC Materials Science, Multidisciplinary; Optics
SC Materials Science; Optics
GA 228RT
UT WOS:000325206300007
ER
PT J
AU Kim, H
Duocastella, M
Charipar, KM
Auyeung, RCY
Pique, A
AF Kim, H.
Duocastella, M.
Charipar, K. M.
Auyeung, R. C. Y.
Pique, A.
TI Laser printing of conformal and multi-level 3D interconnects
SO APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
LA English
DT Article
AB A crucial challenge in three-dimensional multi-chip assemblies is to establish electrical connections between discrete devices. Here, we apply laser printing of congruent voxels of silver nanopaste for the fabrication of conformal and 3D multi-level interconnects. By controlling laser fluence, various 3D electrodes including freestanding tabs and side contacts over vertical walls can be directly printed without the need for sacrificial layers, chemical etching or electroplating. The electrical characteristics of the printed interconnects are similar to those currently in use by the semiconductor industry. These results are a promising step forward in the generation of customized interconnects for 3D microelectronics.
C1 [Kim, H.; Charipar, K. M.; Auyeung, R. C. Y.; Pique, A.] Naval Res Lab, Mat Sci & Technol Div, Washington, DC 20375 USA.
[Duocastella, M.] Princeton Univ, Dept Mech & Aerosp Engn, Princeton, NJ 08544 USA.
RP Pique, A (reprint author), Naval Res Lab, Mat Sci & Technol Div, Washington, DC 20375 USA.
EM pique@nrl.navy.mil
OI Duocastella, Marti/0000-0003-4687-8233
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 13
TC 5
Z9 5
U1 1
U2 49
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 OCT
PY 2013
VL 113
IS 1
BP 5
EP 8
DI 10.1007/s00339-013-7909-7
PG 4
WC Materials Science, Multidisciplinary; Physics, Applied
SC Materials Science; Physics
GA 220AQ
UT WOS:000324553500002
ER
PT J
AU Mayer, M
Buehler, R
Hays, E
Cheung, CC
Dutka, MS
Grove, JE
Kerr, M
Ojha, R
AF Mayer, M.
Buehler, R.
Hays, E.
Cheung, C. C.
Dutka, M. S.
Grove, J. E.
Kerr, M.
Ojha, R.
TI RAPID GAMMA-RAY FLUX VARIABILITY DURING THE 2013 MARCH CRAB NEBULA FLARE
SO ASTROPHYSICAL JOURNAL LETTERS
LA English
DT Article
DE gamma rays: stars; ISM: supernova remnants; pulsars: individual (Crab);
radiation mechanisms: non-thermal
ID PULSAR WIND NEBULAE; PARTICLE-ACCELERATION; MAGNETIC RECONNECTION;
TERMINATION SHOCK; EMISSION; APRIL
AB We report on a bright flare in the Crab Nebula detected by the Large Area Telescope (LAT) on board the Fermi Gamma-ray Space Telescope. The period of significantly increased luminosity occurred in 2013 March and lasted for approximately two weeks. During this period, we observed flux variability on timescales of approximately 5 hr. The combined photon flux above 100 MeV from the pulsar and its nebula reached a peak value of (12.5 +/- 0.8) . 10(-6) cm(-2) s(-1) on 2013 March 6. This value exceeds the average flux by almost a factor of six and implies a similar to 20 times higher flux for the synchrotron component of the nebula alone. This is the second brightest flare observed from this source. Spectral and temporal analysis of the LAT data collected during the outburst reveal a rapidly varying synchrotron component of the Crab Nebula while the pulsar emission remains constant in time.
C1 [Mayer, M.; Buehler, R.] Deutsch Elekt Synchrotron DESY, D-15738 Zeuthen, Germany.
[Hays, E.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Cheung, C. C.; Grove, J. E.] Naval Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Dutka, M. S.; Ojha, R.] Catholic Univ Amer, Washington, DC 20064 USA.
[Kerr, M.] Stanford Univ, Dept Phys, Kavli Inst Particle Astrophys & Cosmol, WW Hansen Expt Phys Lab, Stanford, CA 94305 USA.
[Kerr, M.] Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA.
[Ojha, R.] ORAU NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
RP Mayer, M (reprint author), Deutsch Elekt Synchrotron DESY, D-15738 Zeuthen, Germany.
EM michael.mayer@desy.de; rolf.buehler@desy.de; elizabeth.a.hays@nasa.gov
RI Hays, Elizabeth/D-3257-2012
FU NASA [NNH10ZDA001N, 41213]; NASA Postdoctoral Program at the Goddard
Space Flight Center; NRL [NASADPRS-15633-Y]; Istituto Nazionale di
Astrofisica in Italy; Centre National dEtudes Spatiales in France
FX Elizabeth Hays and Rolf Buhler acknowledge generous support from the
Fermi guest investigator program. This research was funded in part by
NASA through Fermi Guest Investigator grant NNH10ZDA001N (proposal
number 41213). This research was supported by an appointment to the NASA
Postdoctoral Program at the Goddard Space Flight Center, administered by
Oak Ridge Associated Universities through a contract with NASA. C.C.C.
was supported at NRL by NASADPRS-15633-Y. The FermiLATCollaboration
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 dEtudes Spatiales in
France.
NR 29
TC 14
Z9 14
U1 0
U2 4
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 2041-8205
J9 ASTROPHYS J LETT
JI Astrophys. J. Lett.
PD OCT 1
PY 2013
VL 775
IS 2
AR L37
DI 10.1088/2041-8205/775/2/L37
PG 6
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 220ZP
UT WOS:000324626700004
ER
PT J
AU Wang, YM
AF Wang, Y. -M.
TI ON THE STRENGTH OF THE HEMISPHERIC RULE AND THE ORIGIN OF ACTIVE-REGION
HELICITY
SO ASTROPHYSICAL JOURNAL LETTERS
LA English
DT Article
DE Sun: activity; Sun: filaments, prominences; Sun: interior; Sun: magnetic
fields; sunspots
ID SOLAR CONVECTION ZONE; MAGNETIC-FLUX TUBES; FILAMENT CHANNELS;
3-DIMENSIONAL EVOLUTION; HYDROGEN VORTICES; CYCLE VARIATION; SIGN RULE;
FIELDS; CHIRALITY; MODEL
AB Vector magnetograph and morphological observations have shown that the solar magnetic field tends to have negative (positive) helicity in the northern (southern) hemisphere, although only similar to 60%-70% of active regions appear to obey this "hemispheric rule." In contrast, at least similar to 80% of quiescent filaments and filament channels that form during the decay of active regions follow the rule. We attribute this discrepancy to the difficulty in determining the helicity sign of newly emerged active regions, which are dominated by their current-free component; as the transverse field is canceled at the polarity inversion lines, however, the axial component becomes dominant there, allowing a more reliable determination of the original active-region chirality. We thus deduce that the hemispheric rule is far stronger than generally assumed, and cannot be explained by stochastic processes. Earlier studies have shown that the twist associated with the axial tilt of active regions is too small to account for the observed helicity; here, both tilt and twist are induced by the Coriolis force acting on the diverging flow in the emerging flux tube. However, in addition to this east-west expansion about the apex of the loop, each of its legs must expand continually in cross section during its rise through the convection zone, thereby acquiring a further twist through the Coriolis force. Since this transverse pressure effect is not limited by drag or tension forces, the final twist depends mainly on the rise time, and may be large enough to explain the observed active-region helicity.
C1 Naval Res Lab, Div Space Sci, Washington, DC 20375 USA.
RP Wang, YM (reprint author), Naval Res Lab, Div Space Sci, Washington, DC 20375 USA.
EM yi.wang@nrl.navy.mil
FU NASA; ONR
FX I am indebted to M. G. Linton for helpful discussions. This work was
funded by NASA and ONR.
NR 41
TC 10
Z9 10
U1 0
U2 4
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 2041-8205
J9 ASTROPHYS J LETT
JI Astrophys. J. Lett.
PD OCT 1
PY 2013
VL 775
IS 2
AR L46
DI 10.1088/2041-8205/775/2/L46
PG 5
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 220ZP
UT WOS:000324626700013
ER
PT J
AU Lin, NH
Tsay, SC
Maring, HB
Yen, MC
Sheu, GR
Wang, SH
Chi, KH
Chuang, MT
Ou-Yang, CF
Fu, JS
Reid, JS
Lee, CT
Wang, LC
Wang, JL
Hsu, CN
Sayer, AM
Holben, BN
Chu, YC
Nguyen, XA
Sopajaree, K
Chen, SJ
Cheng, MT
Tsuang, BJ
Tsai, CJ
Peng, CM
Schnell, RC
Conway, T
Chang, CT
Lin, KS
Tsai, YI
Lee, WJ
Chang, SC
Liu, JJ
Chiang, WL
Huang, SJ
Lin, TH
Liu, GR
AF Lin, Neng-Huei
Tsay, Si-Chee
Maring, Hal B.
Yen, Ming-Cheng
Sheu, Guey-Rong
Wang, Sheng-Hsiang
Chi, Kai Hsien
Chuang, Ming-Tung
Ou-Yang, Chang-Feng
Fu, Joshua S.
Reid, Jeffrey S.
Lee, Chung-Te
Wang, Lin-Chi
Wang, Jia-Lin
Hsu, Christina N.
Sayer, Andrew M.
Holben, Brent N.
Chu, Yu-Chi
Nguyen, Xuan Anh
Sopajaree, Khajornsak
Chen, Shui-Jen
Cheng, Man-Ting
Tsuang, Ben-Jei
Tsai, Chuen-Jinn
Peng, Chi-Ming
Schnell, Russell C.
Conway, Tom
Chang, Chang-Tang
Lin, Kuen-Song
Tsai, Ying I.
Lee, Wen-Jhy
Chang, Shuenn-Chin
Liu, Jyh-Jian
Chiang, Wei-Li
Huang, Shih-Jen
Lin, Tang-Huang
Liu, Gin-Rong
TI An overview of regional experiments on biomass burning aerosols and
related pollutants in Southeast Asia: From BASE-ASIA and the Dongsha
Experiment to 7-SEAS
SO ATMOSPHERIC ENVIRONMENT
LA English
DT Editorial Material
DE Biomass burning; Aerosol; Air toxics; Southeast Asia; 7-SEAS; BASE-ASIA;
Dongsha Experiment
ID LONG-RANGE TRANSPORT; TRACE-P EXPERIMENT; OPTICAL-PROPERTIES;
AIR-QUALITY; CHINA SEA; CHEMICAL-COMPOSITION; ATMOSPHERIC MERCURY;
MARITIME CONTINENT; PCDD/F EMISSIONS; RICE STRAW
AB By modulating the Earth-atmosphere energy, hydrological and biogeochemical cycles, and affecting regional-to-global weather and climate, biomass burning is recognized as one of the major factors affecting the global carbon cycle. However, few comprehensive and wide-ranging experiments have been conducted to characterize biomass-burning pollutants in Southeast Asia (SEA) or assess their regional impact on meteorology, the hydrological cycle, the radiative budget, or climate change. Recently, BASE-ASIA (Biomass-burning Aerosols in South-East Asia: Smoke Impact Assessment) and the 7-SEAS (7-South-East Asian Studies)/Dongsha Experiment were conducted during the spring seasons of 2006 and 2010 in northern SEA, respectively, to characterize the chemical, physical, and radiative properties of biomass-burning emissions near the source regions, and assess their effects. This paper provides an overview of results from these two campaigns and related studies collected in this special issue, entitled "Observation, modeling and impact studies of biomass burning and pollution in the SE Asian Environment". This volume includes 28 papers, which provide a synopsis of the experiments, regional weather/climate, chemical characterization of biomass-burning aerosols and related pollutants in source and sink regions, the spatial distribution of air toxics (atmospheric mercury and dioxins) in source and remote areas, a characterization of aerosol physical, optical, and radiative properties, as well as modeling and impact studies. These studies, taken together, provide the first relatively complete dataset of aerosol chemistry and physical observations conducted in the source/sink region in the northern SEA, with particular emphasis on the marine boundary layer and lower free troposphere (LFT). The data, analysis and modeling included in these papers advance our present knowledge of source characterization of biomass-burning pollutants near the source regions as well as the physical and chemical processes along transport pathways. In addition, we raise key questions to be addressed by a coming deployment during springtime 2013 in northern SEA, named 7-SEAS/BASELInE (Biomass-burning Aerosols & Stratocumulus Environment: Lifecycles and Interactions Experiment). This campaign will include a synergistic approach for further exploring many key atmospheric processes (e.g., complex aerosol-cloud interactions) and impacts of biomass burning on the surface-atmosphere energy budgets during the lifecycles of biomass-burning emissions. (c) 2013 The Authors. Published by Elsevier Ltd. All rights reserved.
C1 [Lin, Neng-Huei; Yen, Ming-Cheng; Sheu, Guey-Rong; Wang, Sheng-Hsiang] Natl Cent Univ, Dept Atmospher Sci, Chungli 32054, Taiwan.
[Tsay, Si-Chee; Hsu, Christina N.; Sayer, Andrew M.; Holben, Brent N.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Maring, Hal B.] NASA Headquarters, Washington, DC USA.
[Wang, Sheng-Hsiang] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Chi, Kai Hsien] Natl Yang Ming Univ, Inst Environm & Occupat Hlth Sci, Taipei 112, Taiwan.
[Chuang, Ming-Tung; Lee, Chung-Te] Natl Cent Univ, Grad Inst Environm Engn, Chungli 32054, Taiwan.
[Ou-Yang, Chang-Feng; Wang, Jia-Lin] Natl Cent Univ, Dept Chem, Chungli 32054, Taiwan.
[Fu, Joshua S.] Univ Tennessee, Dept Civil & Environm Engn, Knoxville, TN USA.
[Fu, Joshua S.] UTK ORNL, Ctr Interdisciplinary Res & Grad Educ, Knoxville, TN USA.
[Reid, Jeffrey S.] Naval Res Lab, Monterey, CA USA.
[Wang, Lin-Chi] Cheng Shiu Univ, Dept Chem & Mat Engn, Kaohsiung, Taiwan.
[Wang, Lin-Chi] Cheng Shiu Univ, Super Micro Mass Res & Technol Ctr, Kaohsiung, Taiwan.
[Sayer, Andrew M.] Univ Space Res Assoc, Columbia, MD 90034 USA.
[Chu, Yu-Chi; Chang, Shuenn-Chin; Liu, Jyh-Jian; Chiang, Wei-Li] Taiwan Environm Protect Adm, Taipei, Taiwan.
[Nguyen, Xuan Anh] Vietnam Acad Sci & Technol, Inst Geophys, Hanoi, Vietnam.
[Sopajaree, Khajornsak] Chiang Mai Univ, Dept Environm Engn, Chiang Mai 50000, Thailand.
[Chen, Shui-Jen] Natl Pingtung Univ Sci & Technol, Dept Environm Engn & Sci, Nei Pu, Pingtung, Taiwan.
[Cheng, Man-Ting; Tsuang, Ben-Jei] Natl Chung Hsing Univ, Dept Environm Engn, Taichung 40227, Taiwan.
[Tsai, Chuen-Jinn] Nation Chiao Tung Univ, Inst Environm Engn, Hsinchu, Taiwan.
[Peng, Chi-Ming] WeatherRisk Explore Inc, Taipei, Taiwan.
[Schnell, Russell C.; Conway, Tom] NOAA, ESRL, Global Monitoring Div, Boulder, CO USA.
[Chang, Chang-Tang] Natl Ilan Univ, Dept Environm Engn, Yilan, Taiwan.
[Lin, Kuen-Song] Yuan Ze Univ, Dept Chem Engn & Mat Sci, Chungli, Taiwan.
[Tsai, Ying I.] Chia Nan Univ Pharm & Sci, Dept Environm Resources Management, Tainan, Taiwan.
[Tsai, Ying I.] Chia Nan Univ Pharm & Sci, Dept Environm Engn & Sci, Tainan, Taiwan.
[Lee, Wen-Jhy] Natl Cheng Kung Univ, Dept Environm Engn, Tainan 70101, Taiwan.
[Huang, Shih-Jen] Natl Taiwan Ocean Univ, Dept Marine Environm Informat, Keelung, Taiwan.
[Lin, Tang-Huang; Liu, Gin-Rong] Natl Cent Univ, Ctr Space & Remote Sensing Res, Chungli 32054, Taiwan.
RP Lin, NH (reprint author), Natl Cent Univ, Dept Atmospher Sci, Chungli 32054, Taiwan.
EM nhlin@cc.ncu.edu.tw
RI Reid, Jeffrey/B-7633-2014; Tsay, Si-Chee/J-1147-2014; Wang,
Lin-Chi/A-1397-2012; Wang, Sheng-Hsiang/F-4532-2010; Ou-Yang,
Chang-Feng/R-2271-2016; Sayer, Andrew/H-2314-2012
OI Reid, Jeffrey/0000-0002-5147-7955; Wang, Lin-Chi/0000-0002-5126-1046;
Wang, Sheng-Hsiang/0000-0001-9675-3135; Ou-Yang,
Chang-Feng/0000-0002-8477-3013; Sayer, Andrew/0000-0001-9149-1789
NR 128
TC 58
Z9 59
U1 7
U2 112
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 1352-2310
EI 1873-2844
J9 ATMOS ENVIRON
JI Atmos. Environ.
PD OCT
PY 2013
VL 78
SI SI
BP 1
EP 19
DI 10.1016/j.atmosenv.2013.04.066
PG 19
WC Environmental Sciences; Meteorology & Atmospheric Sciences
SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences
GA 220RW
UT WOS:000324605600001
ER
PT J
AU Tsay, SC
Hsu, NC
Lau, WKM
Li, C
Gabriel, PM
Ji, Q
Holben, BN
Welton, EJ
Nguyen, AX
Janjai, S
Lin, NH
Reid, JS
Boonjawat, J
Howell, SG
Huebert, BJ
Fu, JS
Hansen, RA
Sayer, AM
Gautam, R
Wang, SH
Goodloe, CS
Miko, LR
Shu, PK
Loftus, AM
Huang, J
Kim, JY
Jeong, MJ
Pantina, P
AF Tsay, Si-Chee
Hsu, N. Christina
Lau, William K. -M.
Li, Can
Gabriel, Philip M.
Ji, Qiang
Holben, Brent N.
Welton, E. Judd
Nguyen, Anh X.
Janjai, Serm
Lin, Neng-Huei
Reid, Jeffrey S.
Boonjawat, Jariya
Howell, Steven G.
Huebert, Barry J.
Fu, Joshua S.
Hansen, Richard A.
Sayer, Andrew M.
Gautam, Ritesh
Wang, Sheng-Hsiang
Goodloe, Colby S.
Miko, Laddawan R.
Shu, Peter K.
Loftus, Adrian M.
Huang, Jingfeng
Kim, Jin Young
Jeong, Myeong-Jae
Pantina, Peter
TI From BASE-ASIA toward 7-SEAS: A satellite-surface perspective of boreal
spring biomass-burning aerosols and clouds in Southeast Asia
SO ATMOSPHERIC ENVIRONMENT
LA English
DT Article
DE Biomass-burning; Aerosol; Cloud; Southeast Asia; BASE-ASIA; 7-SEAS
ID ATMOSPHERIC BROWN CLOUDS; OPTICAL-PROPERTIES; HYDROLOGICAL CYCLE; FIRE
EMISSIONS; SMOKE AEROSOLS; PART II; IMPACT; CLIMATE; PRECIPITATION;
MICROPHYSICS
AB In this paper, we present recent field studies conducted by NASA's SMART-COMMIT (and ACHIEVE, to be operated in 2013) mobile laboratories, jointly with distributed ground-based networks (e.g., AERONET, http://aeronet.gsfc.nasa.gov/ and MPLNET, http://mplnet.gsfc.nasa.gov/) and other contributing instruments over northern Southeast Asia. These three mobile laboratories, collectively called SMARTLabs (cf. http://smartlabs.gsfc.nasa.gov/, Surface-based Mobile Atmospheric Research & Testbed Laboratories) comprise a suite of surface remote sensing and in-situ instruments that are pivotal in providing high spectral and temporal measurements, complementing the collocated spatial observations from various Earth Observing System (EOS) satellites. A satellite-surface perspective and scientific findings, drawn from the BASE-ASIA (2006) field deployment as well as a series of ongoing 7-SEAS (2010-13) field activities over northern Southeast Asia are summarized, concerning (i) regional properties of aerosols from satellite and in-situ measurements, (ii) cloud properties from remote sensing and surface observations, (iii) vertical distribution of aerosols and clouds, and (iv) regional aerosol radiative effects and impact assessment. The aerosol burden over Southeast Asia in boreal spring, attributed to biomass burning, exhibits highly consistent spatial and temporal distribution patterns, with major variability arising from changes in the magnitude of the aerosol loading mediated by processes ranging from large-scale climate factors to diurnal meteorological events. Downwind from the source regions, the tightly coupled-aerosol cloud system provides a unique, natural laboratory for further exploring the micro- and macro-scale relationships of the complex interactions. The climatic significance is presented through large-scale anti-correlations between aerosol and precipitation anomalies, showing spatial and seasonal variability, but their precise cause-and-effect relationships remain an open-ended question. To facilitate an improved understanding of the regional aerosol radiative effects, which continue to be one of the largest uncertainties in climate forcing, a joint international effort is required and anticipated to commence in springtime 2013 in northern Southeast Asia. Published by Elsevier Ltd.
C1 [Tsay, Si-Chee; Hsu, N. Christina; Lau, William K. -M.; Li, Can; Ji, Qiang; Holben, Brent N.; Welton, E. Judd; Hansen, Richard A.; Sayer, Andrew M.; Gautam, Ritesh; Goodloe, Colby S.; Miko, Laddawan R.; Shu, Peter K.; Pantina, Peter] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Li, Can; Ji, Qiang; Hansen, Richard A.; Huang, Jingfeng] Univ Maryland, College Pk, MD 20742 USA.
[Gabriel, Philip M.] Colorado State Univ, Ft Collins, CO 80523 USA.
[Nguyen, Anh X.] Vietnam Acad Sci & Technol, Hanoi, Vietnam.
[Janjai, Serm] Silpakom Univ, Fac Sci, Dept Phys, Nakhon Pathom, Thailand.
[Lin, Neng-Huei; Wang, Sheng-Hsiang] Natl Cent Univ, Hsinchu 300, Taiwan.
[Reid, Jeffrey S.] Naval Res Lab, Monterey, CA USA.
[Boonjawat, Jariya] Chulalongkorn Univ, Bangkok 10330, Thailand.
[Howell, Steven G.; Huebert, Barry J.] Univ Hawaii Manoa, Honolulu, HI 96822 USA.
[Fu, Joshua S.] Univ Tennessee, Knoxville, TN USA.
[Sayer, Andrew M.; Gautam, Ritesh] Univ Space Res Assoc, Columbia, MD 90034 USA.
[Loftus, Adrian M.] NASA, Goddard Space Flight Ctr, Postdoctoral Program, Greenbelt, MD 20771 USA.
[Huang, Jingfeng] NOAA, NESDIS, Ctr Satellite Applicat & Res, College Pk, MD USA.
[Kim, Jin Young] Korea Inst Sci & Technol, Seoul, South Korea.
[Jeong, Myeong-Jae] Gangneung Wonju Natl Univ, Gaungneung, Gangwondo, South Korea.
[Pantina, Peter] Sci Syst & Applications Inc, Lanham, MD USA.
RP Tsay, SC (reprint author), NASA, Goddard Space Flight Ctr, Code 613, Greenbelt, MD 20771 USA.
EM si-chee.tsay@nasa.gov
RI Gautam, Ritesh/E-9776-2010; Sayer, Andrew/H-2314-2012; Reid,
Jeffrey/B-7633-2014; Li, Can/F-6867-2011; Huang, Jingfeng/D-7336-2012;
Loftus, Adrian/J-1148-2014; Tsay, Si-Chee/J-1147-2014; Lau, William
/E-1510-2012; Wang, Sheng-Hsiang/F-4532-2010
OI Gautam, Ritesh/0000-0002-2177-9346; Sayer, Andrew/0000-0001-9149-1789;
Reid, Jeffrey/0000-0002-5147-7955; Huang, Jingfeng/0000-0002-8779-2922;
Lau, William /0000-0002-3587-3691; Wang,
Sheng-Hsiang/0000-0001-9675-3135
FU NASA Interdisciplinary Studies (IDS) project, "Effects of biomass
burning on Asian Monsoon water cycle and climate"
FX The lead author thanks the continuous support of SMARTLabs deployments
in Southeast Asia, as part of NASA Radiation Sciences Program managed by
Dr. Hal B. Maring. Deployment of 7-SEAS/Son La IOP and data analysis are
funded by NASA Interdisciplinary Studies (IDS) project, "Effects of
biomass burning on Asian Monsoon water cycle and climate." We thank the
NASA/EOS science teams of TOMS/OMI/SeaWiFS/MODIS/CALIPSO and
AERONET/MPLNET for providing satellite and network data, respectively.
The authors also gratefully acknowledge the team efforts led by J.
Boonjawat (Southeast Asia START Regional Center at Chulalongkorn
University, Thailand) and K. Bhuranapanon (Head of Phimai observatory
and radar station, Bureau of Royal Rainmaking and Agricultural Aviation,
Thailand) for supporting BASE-ASIA deployment, and by Anh X. Nguyen
(Institute of Geophysics at Vietnam Academy of Science and Technology,
Vietnam), S. Janjai (Department of Physics at Silpakorn University,
Thailand), and N.-H. Lin (Department of Atmospheric Sciences at National
Central University, Taiwan) in supporting 7-SEAS IOPs (2010-2012) over
northern Southeast Asia.
NR 84
TC 25
Z9 26
U1 1
U2 26
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 1352-2310
EI 1873-2844
J9 ATMOS ENVIRON
JI Atmos. Environ.
PD OCT
PY 2013
VL 78
SI SI
BP 20
EP 34
DI 10.1016/j.atmosenv.2012.12.013
PG 15
WC Environmental Sciences; Meteorology & Atmospheric Sciences
SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences
GA 220RW
UT WOS:000324605600002
ER
PT J
AU Yang, LM
Nguyen, DM
Jia, SG
Reid, JS
Yu, LYE
AF Yang, Liming
Duc Minh Nguyen
Jia, Shiguo
Reid, Jeffrey S.
Yu, Liya E.
TI Impacts of biomass burning smoke on the distributions and concentrations
of C-2-C-5 dicarboxylic acids and dicarboxylates in a tropical urban
environment
SO ATMOSPHERIC ENVIRONMENT
LA English
DT Article
DE PM2.5; Photooxidation; Levoglucosan; Transboundary; Southeast Asia
ID MOLECULAR-DISTRIBUTIONS; ATMOSPHERIC AEROSOLS; KETOCARBOXYLIC ACIDS;
ORGANIC-COMPOUNDS; CARBOXYLIC-ACIDS; PACIFIC-OCEAN; OXALIC-ACID;
DICARBONYLS; EMISSIONS; DEGRADATION
AB Daily ambient PM2.5 was collected during 8 September to 5 October (Julian Days, JDs 252-279), 2008 in Singapore to investigate impacts of transboundary biomass burning smoke on distribution among C-2-C-5 dicarboxylic acids (DCAs) and corresponding dicarboxylate salts (DCS) in the tropical urban atmosphere. Quantification of DCAs and DCS were performed using solvent and water extraction followed by chromatography analyses via GC-MS and ion chromatography. The averaged PM2.5 and PM10 concentrations from September 19-30 (JDs 263-274) were concurrently elevated by similar to 40% due to the transboundary smoke. During this same period, C-2-C-5 total dicarboxylates (TDCAS, summation of DCAs and DCS), on average, increased more than two times, with C-2-TDCAS accounted for in average 80% of the C-2-C-5 TDCAS. This demonstrates that the transboundary smoke enriched C-2-C-5 TDCAS more than PM2.5 in the urban environment. In the presence of the transboundary smoke, the averaged concentration ratios of C-2-C-5 DCS to corresponding DCA were 13.4, 2.9, 1.0, and 1.4 with oxalate salts exhibiting the highest concentration (355.0 ng m(-3)). The transboundary smoke increased malic acid concentration more than 3.5 times, which is the largest relative increase among the quantified TDCAS. Considering that malic acid is mainly generated through ambient photooxidation, such significant increase in malic acid demonstrates more prominent photooxidation incurred by the smoke. (c) 2012 Elsevier Ltd. All rights reserved.
C1 [Yang, Liming; Duc Minh Nguyen; Jia, Shiguo; Yu, Liya E.] Natl Univ Singapore, Dept Civil & Environm Engn, Singapore 117548, Singapore.
[Reid, Jeffrey S.] Naval Res Lab, Marine Meteorol Div, Monterey, CA USA.
[Yu, Liya E.] Natl Univ Singapore, NUS Environm Res Inst, Singapore 117548, Singapore.
RP Yu, LYE (reprint author), Natl Univ Singapore, Dept Civil & Environm Engn, Singapore 117548, Singapore.
EM liya.yu@nus.edu.sg
RI Yu, Liya/H-2573-2013; Reid, Jeffrey/B-7633-2014;
OI Yu, Liya/0000-0001-9182-6593; Reid, Jeffrey/0000-0002-5147-7955; Yang,
Liming/0000-0003-3090-0790
FU NUS Environmental Research Institute (NERI), National University of
Singapore; Naval Research Laboratory Base Research Program
FX The support of the NUS Environmental Research Institute (NERI), National
University of Singapore is appreciated. Dr. Reid's participation was
funded by the Naval Research Laboratory Base Research Program.
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PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 1352-2310
J9 ATMOS ENVIRON
JI Atmos. Environ.
PD OCT
PY 2013
VL 78
SI SI
BP 211
EP 218
DI 10.1016/j.atmosenv.2012.03.049
PG 8
WC Environmental Sciences; Meteorology & Atmospheric Sciences
SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences
GA 220RW
UT WOS:000324605600020
ER
PT J
AU Atwood, SA
Reid, JS
Kreidenweis, SM
Yu, LE
Salinas, SV
Chew, BN
Balasubramanian, R
AF Atwood, Samuel A.
Reid, Jeffrey S.
Kreidenweis, Sonia M.
Yu, Liya E.
Salinas, Santo V.
Chew, Boon Ning
Balasubramanian, Rajasekhar
TI Analysis of source regions for smoke events in Singapore for the 2009 El
Nino burning season
SO ATMOSPHERIC ENVIRONMENT
LA English
DT Article
DE Maritime Continent; Biomass burning; Aerosol transport; Receptor
modeling; Summer monsoon; Air quality
ID SOUTHEAST-ASIA; MARITIME CONTINENT; OPTICAL DEPTH; INDONESIA; IMPACT;
FIRES; ATMOSPHERE; DEPOSITION; TRANSPORT; PATTERNS
AB As part of the 7 SouthEast Asian Studies (7SEAS) program, a solar radiation and chemistry sampling site ("supersite") was developed at the National University of Singapore (NUS) to monitor regional air quality. The first intensive operations period for this site occurred between August and October 2009, a period that coincided with a moderate El Nino event and enhanced tropical burning, particularly in peatlands. We use data from this period to analyze the transport of biomass burning emissions in the Maritime Continent (MC) to the NUS supersite. An overview of the aerosol environment is provided for Singapore, followed by more detailed discussion of four aerosol events. The 2009 burning season was similar to those described in previous analyses, which showed that fire activity begins in the western half of the MC in Sumatra and propagates eastward in time. Similarly, agricultural burning occurs first, generally followed by deforestation and peatland fires. Some of the biomass burning emissions make their way into the free troposphere, where they are transported regionally by the prevailing wind patterns. Our analyses show that the seasonal winds at 850 hPa (similar to 1500 m) shift transport patterns from source regions to the southwest of Singapore, to regions to the southeast over the course of the summer monsoon, patterns that allow Singapore to be impacted by peak burning regions in the MC. In contrast, winds at the surface are more typically from the south and southeast, demonstrating the prevalence of vertical wind shear over the region. As a result of the variable source regions influencing different levels of the atmosphere over Singapore, in-situ surface observations of aerosol mass concentrations are not always consistent with inferences of the presence of enhanced aerosol concentration from column optical depth. Our findings confirm the complexity of aerosol sources and transport over the MC, and the key role that biomass burning emissions play in influencing column aerosol optical depth and total particulate mass concentrations at the surface. The sea-level altitude of the NUS supersite means that non-local pollution transported above the boundary layer cannot be reliably sampled and characterized, but the combined effects of local emissions and downward-mixed, non-local pollutants in Singapore were consistently measured. (C) 2013 Published by Elsevier Ltd.
C1 [Atwood, Samuel A.; Kreidenweis, Sonia M.] Colorado State Univ, Dept Atmospher Sci, Ft Collins, CO 80523 USA.
[Reid, Jeffrey S.] Naval Res Lab, Aerosol & Radiat Sect, Marine Meteorol Div, Monterey, CA 93943 USA.
[Yu, Liya E.; Balasubramanian, Rajasekhar] Natl Univ Singapore, Dept Civil & Environm Engn, Singapore 117576, Singapore.
[Salinas, Santo V.; Chew, Boon Ning] Natl Univ Singapore, Ctr Remote Imaging Sensing & Proc, Singapore 119076, Singapore.
RP Reid, JS (reprint author), Naval Res Lab, Aerosol & Radiat Sect, Marine Meteorol Div, Grace Hopper Ave,Stop 2, Monterey, CA 93943 USA.
EM satwood@atmos.colostate.edu; jeffrey.reid@nrImry.navy.mil;
sonia@atmos.colostate.edu; liya.yu@nus.edu.sg; crscsv@nus.edu.sg;
crscbn@nus.edu.sg; ceerbala@nus.edu.sg
RI Balasubramanian, Rajasekhar/C-2243-2011; Yu, Liya/H-2573-2013; Reid,
Jeffrey/B-7633-2014; Chew, Boon Ning/M-2405-2016; Kreidenweis,
Sonia/E-5993-2011
OI Balasubramanian, Rajasekhar/0000-0002-5627-3628; Yu,
Liya/0000-0001-9182-6593; Reid, Jeffrey/0000-0002-5147-7955; Chew, Boon
Ning/0000-0002-2933-7788; Kreidenweis, Sonia/0000-0002-2561-2914
FU NRL Base Research Program; Colorado State University Center for
Geosciences/Atmospheric Research
FX This work was funded by the NRL Base Research Program and the Colorado
State University Center for Geosciences/Atmospheric Research. Much of
the analysis conducted by Samuel Atwood was as part of the Naval
Research Enterprise Internship program (NREIP) internship. We are
grateful for the support of the staff and students of the National
University of Singapore Faculty of Engineering as well as the Centre for
Remote Imaging, Sensing, and Processing (CRISP). The use of Singapore
National Environmental Agency PM10 data is gratefully
recognized. Finally, we would like to thank members of the Aerosol and
Radiation Section for many useful conversations and help with data
processing, including James Campbell, Cynthia Curtis, Walter Sessions,
and Peng Xian-Lynch.
NR 46
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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 OCT
PY 2013
VL 78
SI SI
BP 219
EP 230
DI 10.1016/j.atmosenv.2013.04.047
PG 12
WC Environmental Sciences; Meteorology & Atmospheric Sciences
SC Environmental Sciences & Ecology; Meteorology & Atmospheric Sciences
GA 220RW
UT WOS:000324605600021
ER
PT J
AU Shippey, S
Roth, J
Gaines, R
AF Shippey, Stuart
Roth, Jonathan
Gaines, Robert
TI Pubic symphysis diastasis with urinary incontinence: collaborative
surgical management
SO INTERNATIONAL UROGYNECOLOGY JOURNAL
LA English
DT Article
DE Pubic symphysis diastasis; Obstetric; Urinary incontinence
AB Pubic symphysis diastasis during obstetric delivery occurs rarely. Symptoms usually respond to conservative management. A nulliparous 39-year-old delivered spontaneously with an audible pop noted. Pubic symphysis diastasis of 4.6 cm was diagnosed on pelvic X-ray. She developed severe pain with ambulation and stress urinary incontinence. After neither of these symptoms improved significantly in response to conservative management, the patient underwent open reduction internal fixation with plating of her pubic symphysis, and bladder neck sling placement using autologous rectus fascia. Postoperatively she experienced urinary retention, which resolved with continuous bladder drainage for 1 week. Both her urinary incontinence and pain resolved, and she had resumed normal activities 3 months following her surgery. Pubic symphysis diastasis is a rare obstetric complication with a paucity of literature to guide its management. A coordinated multidisciplinary approach to management is necessary when multiple organ systems are involved.
C1 [Shippey, Stuart; Roth, Jonathan; Gaines, Robert] Naval Med Ctr Portsmouth, Dept Obstet & Gynecol, Portsmouth, VA 23708 USA.
RP Shippey, S (reprint author), Naval Med Ctr Portsmouth, Dept Obstet & Gynecol, 620 John Paul Jones Cir, Portsmouth, VA 23708 USA.
EM shshippey@yahoo.com
NR 5
TC 1
Z9 2
U1 1
U2 7
PU SPRINGER LONDON LTD
PI LONDON
PA 236 GRAYS INN RD, 6TH FLOOR, LONDON WC1X 8HL, ENGLAND
SN 0937-3462
J9 INT UROGYNECOL J
JI Int. Urogynecol. J.
PD OCT
PY 2013
VL 24
IS 10
BP 1757
EP 1759
DI 10.1007/s00192-013-2120-0
PG 3
WC Obstetrics & Gynecology; Urology & Nephrology
SC Obstetrics & Gynecology; Urology & Nephrology
GA 221HD
UT WOS:000324647700024
PM 23673441
ER
PT J
AU Varney, RH
Hysell, DL
Huba, JD
AF Varney, Roger H.
Hysell, David L.
Huba, J. D.
TI Sources of variability in equatorial topside ionospheric and
plasmaspheric temperatures
SO JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS
LA English
DT Article
DE Equatorial ionosphere; Incoherent Scatter Radar; Modeling
ID F-REGION; INCOHERENT-SCATTER; LOW LATITUDES; ELECTRON-TEMPERATURE;
COMPUTER-SIMULATION; THEORETICAL-MODEL; JICAMARCA; SATELLITE; DRIFT;
TRANSPORT
AB Jicamarca measurements of electron temperatures at high altitudes (500-1500 km) from the last solar minimum routinely show variations of hundreds of Kelvin from day-to-day. Possible sources of these variations are explored using the SAMI2-PE is another model of the ionosphere including photoelectron transport (SAMI2-PE) model, which includes a multistream photoelectron transport model. Changes to the electric fields, meridional winds, and thermospheric densities can all change the electron densities and temperatures at high altitudes. The high altitude electron temperatures are primarily determined by a balance between heating from photoelectrons which travel up the field lines and thermal diffusion which carries heat back down the field lines. The winds and electric fields will change the altitude and densities of the off-equatorial F-region peaks, especially on the field lines connected to the equatorial arcs. The densities and temperatures in the plasmasphere will self consistently adjust themselves to achieve diffusive equilibrium with the off-equatorial F-regions. Furthermore, decreases in the density and/or altitude of the F-region makes it easier for photoelectrons to escape to high altitudes. These connections between the equatorial plasmasphere, the off-equatorial F-regions, and the neutral thermosphere suggest that high altitude measurements at Jicamarca could be used to study thermospheric variability. (C) 2013 Elsevier Ltd. All rights reserved.
C1 [Varney, Roger H.] Cornell Univ, Sch Elect & Comp Engn, Ithaca, NY 14850 USA.
[Hysell, David L.] Cornell Univ, Ithaca, NY USA.
[Huba, J. D.] Naval Res Lab, Div Plasma Phys, Washington, DC USA.
RP Varney, RH (reprint author), Cornell Univ, Sch Elect & Comp Engn, Ithaca, NY 14850 USA.
EM rvarney@ucar.edu
OI Varney, Roger/0000-0002-5976-2638
FU NSF through Cornell University [AGS-0905448]
FX The Jicamarca Radio Observatory is a facility of the Instituto Geofisico
del Peru operated with support from NSF cooperative agreement
AGS-0905448 through Cornell University.
NR 56
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U1 4
U2 8
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 1364-6826
EI 1879-1824
J9 J ATMOS SOL-TERR PHY
JI J. Atmos. Sol.-Terr. Phys.
PD OCT
PY 2013
VL 103
SI SI
BP 83
EP 93
DI 10.1016/j.jastp.2012.12.024
PG 11
WC Geochemistry & Geophysics; Meteorology & Atmospheric Sciences
SC Geochemistry & Geophysics; Meteorology & Atmospheric Sciences
GA 225KZ
UT WOS:000324963100012
ER
PT J
AU Hammond, LCDRJ
Lin, EC
Harwood, DP
Juhan, TW
Gochanour, E
Klosterman, EL
Cole, BJ
Nicholson, GP
Verma, NN
Romeo, AA
AF Hammond, L. C. D. R. James
Lin, Emery C.
Harwood, Daniel P.
Juhan, Tristan W.
Gochanour, Eric
Klosterman, Emma L.
Cole, Brian J.
Nicholson, Gregory P.
Verma, Nikhil N.
Romeo, Anthony A.
TI Clinical outcomes of hemiarthroplasty and biological resurfacing in
patients aged younger than 50 years
SO JOURNAL OF SHOULDER AND ELBOW SURGERY
LA English
DT Article
DE Hemiarthroplasty; biological resurfacing; glenohumeral arthritis;
lateral meniscal allograft
ID TOTAL SHOULDER ARTHROPLASTY; LATERAL MENISCUS ALLOGRAFT; HUMERAL HEAD
REPLACEMENT; GLENOHUMERAL OSTEOARTHRITIS; GLENOID WEAR; ARTHRITIS;
JOINT; LESS; OLD
AB Background: Total shoulder arthroplasty as a treatment for glenohumeral degenerative joint disease is well accepted but has been less predictable with regard to outcomes and durability in a younger aged population, typically aged younger than 50 years. This younger population has a greater potential for glenoid component loosening. This has led surgeons to perform hemiarthroplasty or hemiarthroplasty with biological resurfacing of the glenoid in an effort to avoid the potential problems with a polyethylene glenoid and obtain durable and acceptable results for these patients.
Methods: The study included 44 patients, with 23 undergoing hemiarthroplasty alone and 21 undergoing hemiarthroplasty with biological resurfacing of the glenoid. All patients were aged younger than 50 years. Preoperative diagnoses, comorbidities, demographics, and range of motion were collected. Preoperative and postoperative radiographs were obtained. Preoperative and postoperative objective scoring measures (Single Assessment Numeric Evaluation, American Shoulder and Elbow Surgeons score, visual analog scale, Simple Shoulder Test, Constant-Murley) were used.
Results: Mean follow-up was 3.8 years for the hemiarthroplasty group and 3.6 years for the biological resurfacing group. Six patients in the hemiarthroplasty and 12 patients in the biological resurfacing group were considered failures due to revision surgery or an American Shoulder and Elbow Surgeons score <50. The hemiarthroplasty group had significantly better visual analog scale and Single Assessment Numeric Evaluation scores.
Conclusions: There was a significant failure rate in the hemiarthroplasty and the biologic resurfacing groups compared with results in the literature. Improved outcomes and lower failure rates were observed in the hemiarthroplasty group compared with the biological resurfacing group in this study.
Level of evidence: Level III, Retrospective Cohort, Treatment Study. (C) 2013 Journal of Shoulder and Elbow Surgery Board of Trustees.
C1 [Hammond, L. C. D. R. James] Naval Med Ctr Portsmouth, Dept Orthopaed, Div Sports Med, Portsmouth, VA USA.
[Lin, Emery C.; Harwood, Daniel P.; Juhan, Tristan W.; Gochanour, Eric; Klosterman, Emma L.; Cole, Brian J.; Nicholson, Gregory P.; Verma, Nikhil N.; Romeo, Anthony A.] Rush Univ, Med Ctr, Dept Orthoped Surg, Div Sports Med, Chicago, IL 60612 USA.
RP Romeo, AA (reprint author), 1611 W Harrison St,Ste 300, Chicago, IL 60612 USA.
EM shoulderelbowdoc@gmail.com
OI Romeo, Anthony/0000-0003-4848-3411
FU AANA; MLB; Arthrex Inc; Smith Nephew; Ossur; Linvatec; Tornier Inc;
Zimmer Inc; Zimmer; DePuy
FX A.R. has a financial relationship with the following entities: speakers'
bureau (Arthrex Inc, DJO Surgical, and the Joint Restoration
Foundation), consultancy (Arthrex Inc), grant/research support (AANA,
MLB), and other travel expenses (Arthrex Inc). N.V. has a financial
relationship with the following entities: board membership (Smith &
Nephew, Shoulder Advisory Board, Vindico Medical), consultancy (Smith &
Nephew), grant/research support (AANA, MLB), royalties (Smith and
Nephew), stock/stock options (Omeros), and fellowship and research
support (Arthrex Inc, Smith & Nephew, Ossur, Linvatec). G.N. has a
financial relationship with the following entities: consultation fees
(Tornier Inc) and royalty payments (Zimmer Inc). B. C. has a financial
relationship with the following entities: board
member/owner/officer/committee appointments (Carticept, Regentis,
International Committee AANA), royalties (Arthrex Inc, DJ Ortho), paid
consultant (Zimmer, Arthrex Inc, DePuy), research or institutional
support (Arthrex Inc, Zimmer, DePuy, OREF/Stryker, NIH/MIMAS, Johnson &
Johnson Regenerative Therapeutics LLC, Arthrosurface), and fellowship
support (Smith & Nephew). The other authors, their immediate families,
and any research foundations with which they are affiliated have not
received any financial payments or other benefits from any commercial
entity related to the subject of this article.
NR 16
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U1 0
U2 1
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 OCT
PY 2013
VL 22
IS 10
BP 1345
EP 1351
DI 10.1016/j.jse.2013.04.015
PG 7
WC Orthopedics; Sport Sciences; Surgery
SC Orthopedics; Sport Sciences; Surgery
GA 221SC
UT WOS:000324678100012
PM 23796385
ER
PT J
AU Gumbs, GR
Keenan, HT
Sevick, CJ
Conlin, AMS
Lloyd, DW
Runyan, DK
Ryan, MAK
Smith, TC
AF Gumbs, Gia R.
Keenan, Heather T.
Sevick, Carter J.
Conlin, Ava Marie S.
Lloyd, David W.
Runyan, Desmond K.
Ryan, Margaret A. K.
Smith, Tyler C.
TI Infant Abusive Head Trauma in a Military Cohort
SO PEDIATRICS
LA English
DT Article
DE military personnel; shaken baby syndrome; child abuse; epidemiology
ID BRAIN-INJURY; CHILD-ABUSE; NONMILITARY FAMILIES; YOUNG-CHILDREN; US
ARMY; MALTREATMENT; NEGLECT; SURVEILLANCE; VICTIMS
AB OBJECTIVE: Evaluate the rate of, and risk factors for, abusive head trauma (AHT) among infants born to military families and compare with civilian population rates.
METHODS: Electronic International Classification of Diseases data from the US Department of Defense (DoD) Birth and Infant Health Registry were used to identify infants born to military families from 1998 through 2005 (N = 676 827) who met the study definition for AHT. DoD Family Advocacy Program data were used to identify infants with substantiated reports of abuse. Rates within the military were compared with civilian population rates by applying an alternate AHT case definition used in a civilian study.
RESULTS: Applying the study definition, the estimated rate of substantiated military AHT was 34.0 cases in the first year of life per 100 000 live births. Using the alternate case definition, the estimated AHT rate was 25.6 cases per 100 000 live births. Infant risk factors for AHT included male sex, premature birth, and a diagnosed major birth defect. Parental risk factors included young maternal age (<21 years), lower sponsor rank or pay grade, and current maternal military service.
CONCLUSIONS: This is the first large database study of AHT with the ability to link investigative results to cases. Overall rates of AHT were consistent with civilian populations when using the same case definition codes. Infants most at risk, warranting special attention from military family support programs, include infants with parents in lower military pay grades, infants with military mothers, and infants born premature or with birth defects.
C1 [Gumbs, Gia R.; Sevick, Carter J.; Conlin, Ava Marie S.; Smith, Tyler C.] Naval Hlth Res Ctr, Deployment Hlth Res Dept, US Dept Def, San Diego, CA 92106 USA.
[Keenan, Heather T.] Univ Utah, Dept Pediat, Salt Lake City, UT USA.
[Keenan, Heather T.] Univ Utah, Intermountain Injury Control Res Ctr, Salt Lake City, UT USA.
[Lloyd, David W.] Off Deputy Assistant Secretary Def Mil Community, Family Advocacy Program, Washington, DC USA.
[Runyan, Desmond K.] Univ Colorado, Sch Med, Dept Pediat, Aurora, CO USA.
[Runyan, Desmond K.] Univ Colorado, Sch Med, Kempe Natl Ctr Prevent & Treatment Child Abuse &, Aurora, CO USA.
[Ryan, Margaret A. K.] Naval Hosp, Camp Pendleton, CA USA.
RP Gumbs, GR (reprint author), Naval Hlth Res Ctr, Deployment Hlth Res Dept, 140 Sylvester Rd, San Diego, CA 92106 USA.
EM gia.gumbs@med.navy.mil
FU US Department of Defense [60504]
FX This work represents report number 12-45, financially supported by the
US Department of Defense, under work unit number 60504. The content and
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 the Air Force,
the Department of Defense, the Department of Veterans Affairs, or the US
Government. Approved for public release; distribution is unlimited. This
research was conducted in compliance with all applicable federal
regulations governing the protection of human subjects in research
(protocol NHRC.2006.0006).
NR 25
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U1 1
U2 12
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 OCT
PY 2013
VL 132
IS 4
BP 668
EP 676
DI 10.1542/peds.2013-0168
PG 9
WC Pediatrics
SC Pediatrics
GA 227FI
UT WOS:000325095400046
PM 23999963
ER
PT J
AU Petrov, GM
Higginson, DP
Davis, J
Petrova, TB
McGuffey, C
Qiao, B
Beg, FN
AF Petrov, G. M.
Higginson, D. P.
Davis, J.
Petrova, Tz B.
McGuffey, C.
Qiao, B.
Beg, F. N.
TI Generation of energetic (> 15 MeV) neutron beams from proton- and
deuteron-driven nuclear reactions using short pulse lasers
SO PLASMA PHYSICS AND CONTROLLED FUSION
LA English
DT Article
ID TARGET INTERACTIONS; THICK; LI; ACCELERATION; BOMBARDMENT; EMISSION;
SPECTRA; YIELDS; FIELD; IONS
AB A roadmap is proposed for the production of high-energy (>15 MeV) neutrons using short pulse lasers. Different approaches are suggested for the two limiting cases of small (E-1 << Q) and large (E-1 >> Q) projectile energies E-1 depending on the Q-value of the nuclear reaction. The neutron fluence from many converter materials is evaluated for two projectiles: protons and deuterons. We found profound differences between proton- and deuteron-driven reactions with regard to both converter material and generated neutron fluence. The optimum converter material for deuteron-driven reactions is low-Z elements such as Li and Be, while for proton- driven reactions the converter material is not critical. For a projectile energy of 50 MeV the deuteron-driven reactions are two orders of magnitude more efficient compared to the proton- driven reactions. Two-dimensional particle-in-cell simulations have been performed for laser pulses with peak intensity 3 x 10(20) W cm(-2), pulse duration 40 fs, spot size 5 mu m and energy 3 J interacting with ultrathin (0.1 mu m) CD foil. The calculated deuteron beam is highly directional along the laser propagation direction with maximum energy of 45 MeV. The interaction of the deuteron beam with a lithium converter and the production of neutrons is modeled using a Monte Carlo code. The computed neutron spectra show that a forward directed neutron beam is generated with an opening angle of similar to 1 sr, maximum energy of 60 MeV and a fluence in the forward direction 1.8 x 10(8) n sr(-1), similar to 20 % of which are with energy above 15 MeV.
C1 [Petrov, G. M.; Davis, J.; Petrova, Tz B.] Naval Res Lab, Div Plasma Phys, Washington, DC USA.
[Higginson, D. P.; McGuffey, C.; Qiao, B.; Beg, F. N.] Univ Calif San Diego, La Jolla, CA 92093 USA.
RP Petrov, GM (reprint author), Naval Res Lab, Div Plasma Phys, 4555 Overlook Ave SW, Washington, DC USA.
RI Higginson, Drew/G-5942-2016; Qiao, Bin/I-2471-2016
OI Higginson, Drew/0000-0002-7699-3788; Qiao, Bin/0000-0001-7174-5577
FU 6.1 Base program; US Department of Energy by Lawrence Livermore National
Laboratory [DE-AC52-07NA27344M]
FX NRL acknowledges support from the 6.1 Base program. The authors
acknowledge the experimental contributions of J A Frenje, L C Jarrott, R
Kodama, K L Lancaster, H Nakamura and D C Swift. This work performed
under the auspices of the US Department of Energy by Lawrence Livermore
National Laboratory under Contract DE-AC52-07NA27344M.
NR 54
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U1 3
U2 22
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0741-3335
J9 PLASMA PHYS CONTR F
JI Plasma Phys. Control. Fusion
PD OCT
PY 2013
VL 55
IS 10
AR 105009
DI 10.1088/0741-3335/55/10/105009
PG 9
WC Physics, Fluids & Plasmas
SC Physics
GA 220ZF
UT WOS:000324625600010
ER
PT J
AU Bello, P
Bringsjord, S
AF Bello, Paul
Bringsjord, Selmer
TI On How to Build a Moral Machine
SO TOPOI-AN INTERNATIONAL REVIEW OF PHILOSOPHY
LA English
DT Article
DE Machine ethics; Experimental psychology; Mindreading; Computational
cognitive modeling
ID PERCEPTION
AB Herein we make a plea to machine ethicists for the inclusion of constraints on their theories consistent with empirical data on human moral cognition. As philosophers, we clearly lack widely accepted solutions to issues regarding the existence of free will, the nature of persons and firm conditions on moral agency/patienthood; all of which are indispensable concepts to be deployed by any machine able to make moral judgments. No agreement seems forthcoming on these matters, and we don't hold out hope for machines that can both always do the right thing (on some general ethic) and produce explanations for its behavior that would be understandable to a human confederate. Our tentative solution involves understanding the folk concepts associated with our moral intuitions regarding these matters, and how they might be dependent upon the nature of human cognitive architecture. It is in this spirit that we begin to explore the complexities inherent in human moral judgment via computational theories of the human cognitive architecture, rather than under the extreme constraints imposed by rational-actor models assumed throughout much of the literature on philosophical ethics. After discussing the various advantages and challenges of taking this particular perspective on the development of artificial moral agents, we computationally explore a case study of human intuitions about the self and causal responsibility. We hypothesize that a significant portion of the variance in reported intuitions for this case might be explained by appeal to an interplay between the human ability to mindread and to the way that knowledge is organized conceptually in the cognitive system. In the present paper, we build on a pre-existing computational model of mindreading (Bello et al. 2007) by adding constraints related to psychological distance (Trope and Liberman 2010), a well-established psychological theory of conceptual organization. Our initial results suggest that studies of folk concepts involved in moral intuitions lead us to an enriched understanding of cognitive architecture and a more systematic method for interpreting the data generated by such studies.
C1 [Bello, Paul] Off Naval Res, Human & Bioengineered Syst Div Code 341, Arlington, VA 22203 USA.
[Bringsjord, Selmer] Rensselaer Polytech Inst, Dept Cognit Sci, Troy, NY 12180 USA.
[Bringsjord, Selmer] Rensselaer Polytech Inst, Dept Comp Sci, Troy, NY 12180 USA.
[Bringsjord, Selmer] Rensselaer Polytech Inst, Dept Lally Sch Management, Troy, NY 12180 USA.
RP Bello, P (reprint author), Off Naval Res, Human & Bioengineered Syst Div Code 341, 875 N Randolph St, Arlington, VA 22203 USA.
EM paul.bello@navy.mil; selmer@rpi.edu
NR 26
TC 0
Z9 0
U1 1
U2 13
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0167-7411
J9 TOPOI-INT REV PHILOS
JI Topoi-Int. Rev. Philos.
PD OCT
PY 2013
VL 32
IS 2
BP 251
EP 266
DI 10.1007/s11245-012-9129-8
PG 16
WC Philosophy
SC Philosophy
GA 221CI
UT WOS:000324634600015
ER
PT J
AU Evans, NR
Bond, HE
Schaefer, GH
Mason, BD
Karovska, M
Tingle, E
AF Evans, Nancy Remage
Bond, Howard E.
Schaefer, Gail H.
Mason, Brian D.
Karovska, Margarita
Tingle, Evan
TI BINARY CEPHEIDS: SEPARATIONS AND MASS RATIOS IN 5 M-circle dot BINARIES
SO ASTRONOMICAL JOURNAL
LA English
DT Article
DE binaries: general; stars: massive; stars: variables: Cepheids
ID BRIGHTEST NORTHERN CEPHEIDS; HUBBLE-SPACE-TELESCOPE; SOLAR-TYPE STARS;
CLASSICAL CEPHEID; V1334 CYGNI; V350 SGR; MULTIPLICITY; COMPANIONS;
LUMINOSITY; ORBIT
AB Deriving the distribution of binary parameters for a particular class of stars over the full range of orbital separations usually requires the combination of results from many different observing techniques (radial velocities, interferometry, astrometry, photometry, direct imaging), each with selection biases. However, Cepheids-cool, evolved stars of similar to 5 M-circle dot-are a special case because ultraviolet (UV) spectra will immediately reveal any companion star hotter than early type A, regardless of the orbital separation. We have used International Ultraviolet Explorer UV spectra of a complete sample of all 76 Cepheids brighter than V = 8 to create a list of all 18 Cepheids with companions more massive than 2.0 M-circle dot. Orbital periods of many of these binaries are available from radial-velocity studies, or can be estimated for longer-period systems from detected velocity variability. In an imaging survey with the Hubble Space Telescope Wide Field Camera 3, we resolved three of the companions (those of eta Aql, S Nor, and V659 Cen), allowing us to make estimates of the periods out to the long-period end of the distribution. Combining these separations with orbital data in the literature, we derive an unbiased distribution of binary separations, orbital periods, and mass ratios. The distribution of orbital periods shows that the 5 M-circle dot binaries have systematically shorter periods than do 1 M-circle dot stars. Our data also suggest that the distribution of mass ratios depends on both binary separation and system multiplicity. The distribution of mass ratios as a function of orbital separation, however, does not depend on whether a system is a binary or a triple.
C1 [Evans, Nancy Remage; Karovska, Margarita; Tingle, Evan] Smithsonian Astrophys Observ, Cambridge, MA 02138 USA.
[Bond, Howard E.] Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA.
[Bond, Howard E.] Space Telescope Sci Inst, Baltimore, MD 21218 USA.
[Schaefer, Gail H.] Georgia State Univ, CHARA Array, Atlanta, GA 30302 USA.
[Mason, Brian D.] USN Observ, Washington, DC 20392 USA.
RP Evans, NR (reprint author), Smithsonian Astrophys Observ, MS 4,60 Garden St, Cambridge, MA 02138 USA.
EM nevans@cfa.harvard.edu; heb11@psu.edu; schaefer@chara-array.org
FU HST grant [GO-12215.01-A]; Chandra X-Ray Center NASA Contract
[NAS8-03060]
FX It is a pleasure to thank H. Harris and K. Kratter for valuable
discussions. IUE continues to provide a valuable foundation for Cepheid
companion studies. Support for this work was also provided by HST grant
GO-12215.01-A and from the Chandra X-Ray Center NASA Contract
NAS8-03060. VizieR and SIMBAD were used in the preparation of this
study.
NR 43
TC 16
Z9 16
U1 0
U2 1
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0004-6256
J9 ASTRON J
JI Astron. J.
PD OCT
PY 2013
VL 146
IS 4
AR 93
DI 10.1088/0004-6256/146/4/93
PG 10
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 218AL
UT WOS:000324404800022
ER
PT J
AU Hartkopf, WI
Mason, BD
Finch, CT
Zacharias, N
Wycoff, GL
Hsu, D
AF Hartkopf, William I.
Mason, Brian D.
Finch, Charlie T.
Zacharias, Norbert
Wycoff, Gary L.
Hsu, Danley
TI DOUBLE STARS IN THE USNO CCD ASTROGRAPHIC CATALOG
SO ASTRONOMICAL JOURNAL
LA English
DT Article
DE astrometry; binaries: general; binaries: visual; catalogs
ID SPECKLE INTERFEROMETRY; UCAC3; CONSTRUCTION; SYSTEM
AB The newly completed Fourth USNO CCD Astrographic Catalog (UCAC4) has proven to be a rich source of double star astrometry and photometry. Following initial comparisons of UCAC4 results against those obtained by speckle interferometry, the UCAC4 catalog was matched against known double stars in the Washington Double Star Catalog in order to provide additional differential astrometry and photometry for these pairs. Matches to 58,131 pairs yielded 61,895 astrometric and 68,935 photometric measurements. Finally, a search for possible new common proper motion (CPM) pairs was made using new UCAC4 proper motion data; this resulted in 4755 new potential CPM doubles (and an additional 27,718 astrometric and photometric measures from UCAC and other sources).
C1 [Hartkopf, William I.; Mason, Brian D.; Finch, Charlie T.; Zacharias, Norbert; Wycoff, Gary L.; Hsu, Danley] USN Observ, Washington, DC 20392 USA.
RP Hartkopf, WI (reprint author), USN Observ, Washington, DC 20392 USA.
EM wih@usno.navy.mil; bdm@usno.navy.mil; finch@usno.navy.mil;
nz@usno.navy.mil
NR 33
TC 11
Z9 12
U1 0
U2 1
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0004-6256
J9 ASTRON J
JI Astron. J.
PD OCT
PY 2013
VL 146
IS 4
AR 76
DI 10.1088/0004-6256/146/4/76
PG 8
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 218AL
UT WOS:000324404800005
ER
PT J
AU Ogawa, T
Oran, ES
Gamezo, VN
AF Ogawa, Takanobu
Oran, Elaine S.
Gamezo, Vadim N.
TI Numerical study on flame acceleration and DDT in an inclined array of
cylinders using an AMR technique
SO COMPUTERS & FLUIDS
LA English
DT Article; Proceedings Paper
CT International Workshop on Future of CFD and Aerospace Sciences
CY APR 23-25, 2012
CL RIKEN Adv Inst Computat Sci, Kobe, JAPAN
HO RIKEN Adv Inst Computat Sci
DE Flame acceleration; Deflagration-to-detonation transition; AMR
ID PROPAGATION MECHANISM; FLOW; VISUALIZATION; TRANSITION
AB Flame acceleration and deflagration-to-detonation transition in an inclined array of cylinders embedded in a H-2-air gas are studied by solving the two-dimensional reactive Navier-Stokes equations with an AMR to resolve important events in the flow. The computations show three stages of flame acceleration and how they are affected by the inclination of the array. The initial stage is the flame acceleration due to the increase of the flame surface area by the flow around the cylinders. The entrainment of the flame in the wake of the cylinders contributes to the fastest flame acceleration for the inclination angle 0 degrees at which the row of cylinders is parallel to the flame propagation. As the inclination angle varies, formation of funnels of unburned material in the wake becomes dominant, and the flame does not accelerate as quickly. In the second stage, shock-flame interactions are responsible for the flame acceleration. The high reaction rate in the shock-compressed material decreases the flame surface area, while sustaining the energy-release rate. The final stage is a quasi-steady state of supersonic propagation. Detonation ignited by a local explosion propagates as a quasi-detonation. For 0 degrees inclination, the local explosion does not lead to detonation, and the flame propagates in the choking regime. (C) 2012 Elsevier Ltd. All rights reserved.
C1 [Ogawa, Takanobu] Seikei Univ, Musashino, Tokyo 1808633, Japan.
[Oran, Elaine S.; Gamezo, Vadim N.] US Naval Res Lab, Washington, DC 20375 USA.
RP Ogawa, T (reprint author), Seikei Univ, 3-3-7 Kichijoji Kitamachi, Musashino, Tokyo 1808633, Japan.
EM ogawa@st.seikei.ac.jp
NR 14
TC 5
Z9 5
U1 1
U2 23
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0045-7930
J9 COMPUT FLUIDS
JI Comput. Fluids
PD OCT 1
PY 2013
VL 85
SI SI
BP 63
EP 70
DI 10.1016/j.compfluid.2012.09.029
PG 8
WC Computer Science, Interdisciplinary Applications; Mechanics
SC Computer Science; Mechanics
GA 216KU
UT WOS:000324283100009
ER
PT J
AU Rohlfs, C
Sullivan, R
AF Rohlfs, Chris
Sullivan, Ryan
TI A comment on evaluating the cost-effectiveness of armored tactical
wheeled vehicles
SO DEFENCE AND PEACE ECONOMICS
LA English
DT Article
DE Cost-effectiveness; Tactical Wheeled Vehicles; US military; Value of a
statistical life
AB This comment discusses the pros and cons of the methodology and data used in our previous study on the cost-effectiveness of armor on Tactical Wheeled Vehicles (TWVs), and responds to recent critiques by Franz Gayl. In our previous article, we evaluated the large-scale Army policies to replace relatively light Type 1 Tactical Wheeled Vehicles (TWVs) with moderately protected Type 2 variants, and later to replace Type 2s with heavily protected Type 3s. We find that the switch from Type 2 to Type 3 TWVs did not appreciably reduce fatalities and were not cost-effective. Mr. Gayl contends that the data and choice of control variables used in our original study negatively bias our findings for Type 3 TWVs. We defend our previous conclusions and argue that Gayl's suggested approach of focusing on deaths per insurgent attack fails to account for effects of the vehicles on when, where, and how attacks occurred. Our methodology does not suffer from this bias and measures effects on total unit casualties rather those incurred per attack. We explain that our estimates are stable across many specifications and are not sensitive to the choice of controls as Gayl suggests.
C1 [Rohlfs, Chris] Morgan Stanley, New York, NY 10019 USA.
[Sullivan, Ryan] Naval Postgrad Sch, Monterey, CA 93943 USA.
RP Sullivan, R (reprint author), Naval Postgrad Sch, 287 Halligan, Monterey, CA 93943 USA.
EM rssulliv@nps.edu
OI Rohlfs, Chris/0000-0001-7714-9231
NR 4
TC 1
Z9 1
U1 0
U2 4
PU TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
SN 1024-2694
J9 DEFENCE PEACE ECON
JI Def. Peace Econ.
PD OCT 1
PY 2013
VL 24
IS 5
BP 485
EP 494
DI 10.1080/10242694.2013.816093
PG 10
WC Economics
SC Business & Economics
GA 212QW
UT WOS:000323998900006
ER
PT J
AU Storm, DF
Deen, DA
Katzer, DS
Meyer, DJ
Binari, SC
Gougousi, T
Paskova, T
Preble, EA
Evans, KR
Smith, DJ
AF Storm, D. F.
Deen, D. A.
Katzer, D. S.
Meyer, D. J.
Binari, S. C.
Gougousi, T.
Paskova, T.
Preble, E. A.
Evans, K. R.
Smith, David J.
TI Ultrathin-barrier AlN/GaN heterostructures grown by rf plasma-assisted
molecular beam epitaxy on freestanding GaN substrates
SO JOURNAL OF CRYSTAL GROWTH
LA English
DT Article
DE Molecular beam epitaxy; Nitrides; Semiconducting III-V materials; High
electron mobility transistors
ID ALGAN/GAN HEMTS; PERFORMANCE; NITRIDE; SURFACE
AB We report the structural and electrical properties of ultrathin-barrier AlN/GaN heterostructures grown on freestanding GaN substrates by rf plasma-assisted molecular beam epitaxy. Structures with barrier thicknesses between 1.5 nm and 7.5 nm were grown and characterized. We observe that AlN/GaN structures with barriers of 3.0 nm exhibit the highest Hall mobility, approximately 1700 cm(2)/Vs. Furthermore, the Hall mobility is much diminished in heterostructures with AlN barriers thicker than 45 am, coincident with the onset of strain relaxation. Published by Elsevier B.V.
C1 [Storm, D. F.; Deen, D. A.; Katzer, D. S.; Meyer, D. J.; Binari, S. C.] Naval Res Lab, Elect Sci & Technol Div, Washington, DC 20375 USA.
[Gougousi, T.] UMBC, Dept Phys, Baltimore, MD 21250 USA.
[Paskova, T.; Preble, E. A.; Evans, K. R.] Kyma Technol Inc, Raleigh, NC USA.
[Smith, David J.] Arizona State Univ, Dept Phys, Tempe, AZ 85287 USA.
RP Storm, DF (reprint author), Naval Res Lab, Elect Sci & Technol Div, Code 6852,4555 Overlook Ave SW, Washington, DC 20375 USA.
EM david.storm@nrl.navy.mil
RI Katzer, D. Scott/N-7841-2013; Gougousi, Theodosia/C-8156-2014
FU Office of Naval Research; AFRL [FA-8650-08-C-1595]; Wyle Laboratory
[DD-8192]; National Science Foundation [DMR 0846445]
FX This work was supported by the Office of Naval Research under funding
from Dr. P. Maki. The authors gratefully acknowledge the assistance of
Neil Green for device processing and fabrication. We also acknowledge
use of facilities in the John M. Cowley Center for High Resolution
Electron Microscopy at Arizona State University and partial support
(D.J.S.) from AFRL Contract FA-8650-08-C-1595 (Monitor: C. Bozada) and
Wyle Laboratory Contract #DD-8192 (Monitor: S. Tetlak). The work at UMBC
was supported in part by the National Science Foundation under Grant DMR
0846445.
NR 22
TC 8
Z9 8
U1 1
U2 27
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0022-0248
J9 J CRYST GROWTH
JI J. Cryst. Growth
PD OCT 1
PY 2013
VL 380
BP 14
EP 17
DI 10.1016/j.jcrysgro.2013.05.029
PG 4
WC Crystallography; Materials Science, Multidisciplinary; Physics, Applied
SC Crystallography; Materials Science; Physics
GA 213GA
UT WOS:000324042000003
ER
PT J
AU Leary, DH
Hervey, WJ
Deschamps, JR
Kusterbeck, AW
Vora, GJ
AF Leary, Dagmar Hajkova
Hervey, W. Judson
Deschamps, Jeffrey R.
Kusterbeck, Anne W.
Vora, Gary J.
TI Which metaproteome? The impact of protein extraction bias on
metaproteomic analyses
SO MOLECULAR AND CELLULAR PROBES
LA English
DT Article
DE Biofilm; Biological mass spectrometry; Community proteomics;
Environmental proteomics; LC-MS/MS; Metaproteomics
ID WASTE-WATER TREATMENT; MICROBIAL COMMUNITIES; SOIL METAPROTEOMICS;
GEL-ELECTROPHORESIS; PROTEOMICS; BIOFILMS; MODEL
AB Culture-independent techniques such as LC-MS/MS-based metaproteomic analyses are being increasingly utilized for the study of microbial composition and function in complex environmental samples. Although several studies have documented the many challenges and sources of bias that must be considered in these types of analyses, none have systematically characterized the effect of protein extraction bias on the biological interpretation of true environmental biofilm metaproteomes. In this study, we compared three protein extraction methods commonly used in the analyses of environmental samples [guanidine hydrochloride (GuHCl), B-PER, sequential citrate-phenol (SCP)] using nano-LC-MS/MS and an environmental marine biofilm to determine the unique biases introduced by each method and their effect on the interpretation of the derived metaproteomes. While the protein extraction efficiencies of the three methods ranged from 2.0 to 4.3%, there was little overlap in the sequence (1.9%), function (8.3% of total assigned protein families) and origin of the identified proteins from each extract. Each extraction method enriched for different protein families (GuHCl photosynthesis, carbohydrate metabolism; B-PER - membrane transport, oxidative stress; SCP calcium binding, structural) while 23.7-45.4% of the identified proteins lacked SwissProt annotations. Taken together, the results demonstrated that even the most basic interpretations of this complex microbial assemblage (species composition, ratio of prokaryotic to eukaryotic proteins, predominant functions) varied with little overlap based on the protein extraction method employed. These findings demonstrate the heavy influence of protein extraction on biofilm metaproteomics and provide caveats for the interpretation of such data sets when utilizing single protein extraction methods for the description of complex microbial assemblages. Published by Elsevier Ltd.
C1 [Leary, Dagmar Hajkova] US Naval Res Lab, Natl Acad Sci, Natl Res Council, Washington, DC 20375 USA.
[Hervey, W. Judson; Deschamps, Jeffrey R.; Kusterbeck, Anne W.; Vora, Gary J.] US Naval Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 USA.
RP Vora, GJ (reprint author), Naval Res Lab, Ctr Bio Mol Sci & Engn, 4555 Overlook Ave SW,Bldg 30 Code 6910, Washington, DC 20375 USA.
EM gary.vora@nrl.navy.mil
OI Vora, Gary/0000-0002-0657-8597; Deschamps, Jeffrey/0000-0001-5845-0010
FU Office of Naval Research via U.S. Naval Research Laboratory
FX We thank Dr. Zheng Wang for his bioinformatic contributions. D.H.L. is a
National Research Council postdoctoral fellow. This work was supported
by the Office of Naval Research via U.S. Naval Research Laboratory core
funds. The opinions and assertions contained herein are those of the
authors and are not to be construed as those of the U.S. Navy, military
service at large or U.S. Government.
NR 21
TC 15
Z9 15
U1 2
U2 46
PU ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
PI LONDON
PA 24-28 OVAL RD, LONDON NW1 7DX, ENGLAND
SN 0890-8508
J9 MOL CELL PROBE
JI Mol. Cell. Probes
PD OCT-DEC
PY 2013
VL 27
IS 5-6
BP 193
EP 199
DI 10.1016/j.mcp.2013.06.003
PG 7
WC Biochemical Research Methods; Biochemistry & Molecular Biology;
Biotechnology & Applied Microbiology; Cell Biology
SC Biochemistry & Molecular Biology; Biotechnology & Applied Microbiology;
Cell Biology
GA 219LZ
UT WOS:000324509800005
PM 23831146
ER
PT J
AU Panasenco, O
Martin, SF
Velli, M
Vourlidas, A
AF Panasenco, Olga
Martin, Sara F.
Velli, Marco
Vourlidas, Angelos
TI Origins of Rolling, Twisting, and Non-radial Propagation of Eruptive
Solar Events
SO SOLAR PHYSICS
LA English
DT Article
DE Coronal mass ejections, low coronal signatures; Coronal mass ejections,
initiation and propagation; Magnetic fields, corona; Coronal holes,
prominences, formation and evolution; Filaments
ID CORONAL MASS EJECTIONS; FILAMENT CHANNELS; STEREOSCOPIC ANALYSIS;
PROMINENCE; RECONSTRUCTION; SIMULATIONS; DEFLECTION; EXPANSION;
CHIRALITY; FEATURES
AB We demonstrate that major asymmetries in erupting filaments and CMEs, namely major twists and non-radial motions are typically related to the larger-scale ambient environment around eruptive events. Our analysis of prominence eruptions observed by the STEREO, SDO, and SOHO spacecraft shows that prominence spines retain, during the initial phases, the thin ribbon-like topology they had prior to the eruption. This topology allows bending, rolling, and twisting during the early phase of the eruption, but not before. The combined ascent and initial bending of the filament ribbon is non-radial in the same general direction as for the enveloping CME. However, the non-radial motion of the filament is greater than that of the CME. In considering the global magnetic environment around CMEs, as approximated by the Potential Field Source Surface (PFSS) model, we find that the non-radial propagation of both erupting filaments and associated CMEs is correlated with the presence of nearby coronal holes, which deflect the erupting plasma and embedded fields. In addition, CME and filament motions, respectively, are guided towards weaker field regions, namely null points existing at different heights in the overlying configuration. Due to the presence of the coronal hole, the large-scale forces acting on the CME may be asymmetric. We find that the CME propagates usually non-radially in the direction of least resistance, which is always away from the coronal hole. We demonstrate these results using both low- and high-latitude examples.
C1 [Panasenco, Olga; Martin, Sara F.] Helio Res, La Crescenta, CA 91214 USA.
[Velli, Marco] CALTECH, Jet Prop Lab, Pasadena, CA USA.
[Vourlidas, Angelos] Naval Res Lab, Div Space Sci, Washington, DC USA.
RP Panasenco, O (reprint author), Helio Res, La Crescenta, CA 91214 USA.
EM panasenco.olga@gmail.com
RI Vourlidas, Angelos/C-8231-2009
OI Vourlidas, Angelos/0000-0002-8164-5948
FU NASA [NNX09AG27G, S-136361-Y]; National Aeronautics and Space
Administration
FX We are indebted to the SOHO, STEREO/SECCHI and SDO teams. O.P. and S. M.
are supported in this research by the NASA grant NNX09AG27G. The work of
M. V. was conducted at the Jet Propulsion Laboratory, California
Institute of Technology under a contract from the National Aeronautics
and Space Administration. A. V. is supported by NASA contract S-136361-Y
to the Naval Research Laboratory. SOHO is a mission of international
cooperation between ESA and NASA. The SECCHI data are produced by an
international consortium of the NRL, LMSAL, and NASA GSFC (USA), RAL and
Univ. Birmingham (UK), MPS (Germany), CSL (Belgium), IOTA and IAS
(France). The AIA data used here are courtesy of SDO (NASA) and the AIA
consortium.
NR 48
TC 18
Z9 18
U1 0
U2 6
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 OCT
PY 2013
VL 287
IS 1-2
BP 391
EP 413
DI 10.1007/s11207-012-0194-3
PG 23
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 214FB
UT WOS:000324115600024
ER
PT J
AU Roan, GT
AF Roan, Gary T.
TI A Note About the Cover of the August Issue
SO IEEE ANTENNAS AND PROPAGATION MAGAZINE
LA English
DT Letter
C1 Naval Res Lab, Washington, DC 20375 USA.
RP Roan, GT (reprint author), Naval Res Lab, Washington, DC 20375 USA.
EM gary.roan@nrl.navy.mil
NR 0
TC 0
Z9 0
U1 0
U2 0
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 OCT
PY 2013
VL 55
IS 5
BP 190
EP 190
PG 1
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA AP9KF
UT WOS:000342398000018
ER
PT J
AU Rogers, WE
Van Vledder, GP
AF Rogers, W. Erick
Van Vledder, Gerbrant Ph
TI Frequency width in predictions of windsea spectra and the role of the
nonlinear solver
SO OCEAN MODELLING
LA English
DT Article
DE Wind waves; Windsea; Spectral narrowness; Spectral width; Nonlinear
interactions; DIscrete interaction approximation
ID GRAVITY-WAVE SPECTRUM; ENERGY-TRANSFER; 4-WAVE INTERACTIONS; GENERATED
WAVES; PART II; MODEL; DISSIPATION; SURFACE; EVOLUTION; COMPUTATIONS
AB In this paper, the accuracy of predictions of the narrowness in frequency space of elevation spectra for wind-generated surface gravity waves is evaluated with the specific objective of determining the impact of the method for computing quadruplet interactions, S-nl4. Alternate metrics are presented for concise quantification of this narrowness and applied to a case study: a 10-day duration hindcast for Lake Michigan during 2002 conducted using the Discrete Interaction Approximation (DIA) for S-nl4. Under-prediction of frequency narrowness relative to observational data is clearly identifiable using non-concise methods. Two of four concise methods for quantifying spectral narrowness are found to adequately register this bias. By comparing with a hindcast that uses an expensive, exact solution for four-wave nonlinear interactions, it is determined that much of the bias can be attributed to the approximation used for the solution of these interactions in the first hindcast, which corresponds to the DIA, which is the solution method used today in nearly all routine, phase-averaged wave modeling. Published by Elsevier Ltd.
C1 [Rogers, W. Erick] Naval Res Lab, Div Oceanog, Stennis Space Ctr, MS 39529 USA.
[Van Vledder, Gerbrant Ph] Delft Univ Technol, NL-2600 AA Delft, Netherlands.
[Van Vledder, Gerbrant Ph] BMT Argoss, Vollenhove, Netherlands.
RP Rogers, WE (reprint author), Naval Res Lab, Code 7322,Bldg 1009, Stennis Space Ctr, MS 39529 USA.
EM Erick.Rogers@nrlssc.navy.mil
FU Office of Naval Research under the National Ocean Partnership Program
FX The authors thank Dr. David Wang and anonymous reviewers for
constructive comments and suggestions. Dr. Wang was especially helpful
in pointing out earlier work with metrics. Results from this study were
first shared with the wave modeling community by Prof. Alex Babanin at
the 2011 Waves in Shallow Environments meeting, for which the authors
are grateful. This work was supported by the Office of Naval Research
under the National Ocean Partnership Program.
NR 62
TC 6
Z9 6
U1 0
U2 5
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 1463-5003
J9 OCEAN MODEL
JI Ocean Model.
PD OCT
PY 2013
VL 70
BP 52
EP 61
DI 10.1016/j.ocemod.2012.11.010
PG 10
WC Meteorology & Atmospheric Sciences; Oceanography
SC Meteorology & Atmospheric Sciences; Oceanography
GA 209RF
UT WOS:000323776800006
ER
PT J
AU Coneski, PN
Weise, NK
Fulmer, PA
Wynne, JH
AF Coneski, Peter N.
Weise, Nickolaus K.
Fulmer, Preston A.
Wynne, James H.
TI Development and evaluation of self-polishing urethane coatings with
tethered quaternary ammonium biocides
SO PROGRESS IN ORGANIC COATINGS
LA English
DT Article
DE Self-polishing; Marine coatings; Antimicrobials; Quaternary ammonium;
Polyurethane
ID GLYCOL-MODIFIED SILANES; FOULING-RELEASE APPLICATIONS; SIDE-CHAINS;
ANTIFOULING COATINGS; THERMAL-DEGRADATION; TRIBLOCK COPOLYMERS;
SURFACE-CHEMISTRY; BLOCK-COPOLYMERS; SHAPE-MEMORY; ALGA ULVA
AB The synthesis and characterization of hydrolysable, antimicrobial cross-linked polyurethanes are described. Cross-linking of isocyanate-terminated urethane oligomers with glycol-modified silanes was used as a novel method for imparting enhanced mechanical integrity and hydrolytic potential to polyurethane coating systems. By combining these cross-linkers with a variety of biocidal quaternary ammonium salts and polyisocyanates, a library of hydrolysable polyurethanes were developed with controllable mechanical, thermal, hydrolytic, and antimicrobial properties. Up to a 3-log reduction of viable microbes was observed and correlated with the surface content of side chain quaternary ammonium salt moieties. Diminished antibacterial characteristics of completely amorphous systems are attributed to the segregation of low surface energy constituents at the material:air interface and relegation of biocidal species to within the bulk material. Published by Elsevier B.V.
C1 [Coneski, Peter N.; Weise, Nickolaus K.; Fulmer, Preston A.; Wynne, James H.] US Naval Res Lab, Div Chem, Washington, DC 20375 USA.
RP Wynne, JH (reprint author), US Naval Res Lab, Div Chem, Code 6100,4555 Overlook Ave SW, Washington, DC 20375 USA.
EM james.wynne@nrl.navy.mil
RI Fulmer, Preston/L-7702-2014
OI Fulmer, Preston/0000-0002-2981-576X
FU Naval Research Laboratory; Office of Naval Research
FX The authors acknowledge the Naval Research Laboratory and the Office of
Naval Research for support of this research.
NR 49
TC 13
Z9 13
U1 7
U2 72
PU ELSEVIER SCIENCE SA
PI LAUSANNE
PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND
SN 0300-9440
J9 PROG ORG COAT
JI Prog. Org. Coat.
PD OCT
PY 2013
VL 76
IS 10
BP 1376
EP 1386
DI 10.1016/j.porgcoat.2013.04.012
PG 11
WC Chemistry, Applied; Materials Science, Coatings & Films
SC Chemistry; Materials Science
GA 204YE
UT WOS:000323406400013
ER
PT J
AU Lee, K
Lee, SJ
Kolsch, M
Chung, WK
AF Lee, Kyoungmin
Lee, Se-Jin
Koelsch, Mathias
Chung, Wan Kyun
TI Enhanced maximum likelihood grid map with reprocessing incorrect sonar
measurements
SO AUTONOMOUS ROBOTS
LA English
DT Article
DE Grid mapping; Sonar sensor; Maximum likelihood estimation
ID MOBILE ROBOT; OCCUPANCY GRIDS; SENSOR FUSION; NAVIGATION; ALGORITHM;
MODELS
AB In this paper, we address the problem of building a grid map as accurately as possible using inexpensive and error-prone sonar sensors. In this research area, incorrect sonar measurements, which fail to detect the nearest obstacle in their beamwidth, generally have been dealt with in the same manner as correct measurements or have been excluded from the mapping. In the former case, the map quality may be severely degraded. In the latter case, the resulting map may have insufficient information after the incorrect measurements are removed because only correct measurements are frequently insufficient to cover the whole environment. We propose an efficient grid-mapping approach that incorporates incorrect measurements in a specialized manner to build a better map; we call this the enhanced maximum likelihood (eML) approach. The eML approach fuses the correct and incorrect measurements into a map based on sub-maps generated from each set of measurements. We also propose the maximal sound pressure (mSP) method to detect incorrect sonar readings using the sound pressure of the waves from sonar sensors. In several indoor experiments, integrating the eML approach with the mSP method achieved the best results in terms of map quality among various mapping approaches. We call this the maximum likelihood based on sub-maps (MLS) approach. The MLS map created using only two sonar sensors exhibited similar accuracy to the reference map, which was an accurate representation of the environment.
C1 [Lee, Kyoungmin; Koelsch, Mathias] Naval Postgrad Sch, Dept Comp Sci, Monterey, CA USA.
[Lee, Se-Jin] Kyungil Univ, Dept Appl Robot, Gyongsan, South Korea.
RP Chung, WK (reprint author), Pohang Univ Sci & Technol POSTECH, Dept Mech Engn, Pohang, South Korea.
EM lekomin@gmail.com; sejiny3@gmail.com; kolsch@nps.edu;
wkchung@postech.ac.kr
NR 35
TC 2
Z9 2
U1 0
U2 16
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0929-5593
J9 AUTON ROBOT
JI Auton. Robot.
PD OCT
PY 2013
VL 35
IS 2-3
BP 123
EP 141
DI 10.1007/s10514-013-9340-5
PG 19
WC Computer Science, Artificial Intelligence; Robotics
SC Computer Science; Robotics
GA 182RG
UT WOS:000321760900003
ER
PT J
AU Stanica, P
Martinsen, T
Gangopadhyay, S
Singh, BK
AF Stanica, Pantelimon
Martinsen, Thor
Gangopadhyay, Sugata
Singh, Brajesh Kumar
TI Bent and generalized bent Boolean functions
SO DESIGNS CODES AND CRYPTOGRAPHY
LA English
DT Article
DE Generalized Boolean functions; Generalized bent functions;
Walsh-Hadamard transform
AB In this paper, we investigate the properties of generalized bent functions defined on with values in , where q a parts per thousand yen 2 is any positive integer. We characterize the class of generalized bent functions symmetric with respect to two variables, provide analogues of Maiorana-McFarland type bent functions and Dillon's functions in the generalized set up. A class of bent functions called generalized spreads is introduced and we show that it contains all Dillon type generalized bent functions and Maiorana-McFarland type generalized bent functions. Thus, unification of two different types of generalized bent functions is achieved. The crosscorrelation spectrum of generalized Dillon type bent functions is also characterized. We further characterize generalized bent Boolean functions defined on with values in and . Moreover, we propose several constructions of such generalized bent functions for both n even and n odd.
C1 [Stanica, Pantelimon; Martinsen, Thor] Naval Postgrad Sch, Dept Appl Math, Monterey, CA 93943 USA.
[Gangopadhyay, Sugata; Singh, Brajesh Kumar] Indian Inst Technol Roorkee, Dept Math, Roorkee 247667, Uttar Pradesh, India.
RP Gangopadhyay, S (reprint author), Indian Inst Technol Roorkee, Dept Math, Roorkee 247667, Uttar Pradesh, India.
EM pstanica@nps.edu; tmartins@nps.edu; gsugata@gmail.com;
singh.brajesho584@gmail.com
NR 20
TC 5
Z9 7
U1 0
U2 5
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0925-1022
EI 1573-7586
J9 DESIGN CODE CRYPTOGR
JI Designs Codes Cryptogr.
PD OCT
PY 2013
VL 69
IS 1
BP 77
EP 94
DI 10.1007/s10623-012-9622-5
PG 18
WC Computer Science, Theory & Methods; Mathematics, Applied
SC Computer Science; Mathematics
GA 175WK
UT WOS:000321264100004
ER
PT J
AU Gordon, DF
Helle, MH
Penano, JR
AF Gordon, D. F.
Helle, M. H.
Penano, J. R.
TI Fully explicit nonlinear optics model in a particle-in-cell framework
SO JOURNAL OF COMPUTATIONAL PHYSICS
LA English
DT Article
DE Particle-in-cell; Nonlinear optics; Finite difference time domain
ID ELECTROMAGNETIC-WAVES; PLASMA SIMULATION; LASER-PULSES; EQUATION; CODE;
PROPAGATION; INTENSE; MEDIA; AIR
AB A numerical technique which incorporates the nonlinear optics of anisotropic crystals into a particle-in-cell framework is described. The model is useful for simulating interactions between crystals, ultra-short laser pulses, intense relativistic electron bunches, plasmas, or any combination thereof. The frequency content of the incident and scattered radiation is limited only by the resolution of the spatial and temporal grid. A numerical stability analysis indicates that the Courant condition is more stringent than in the vacuum case. Numerical experiments are carried out illustrating the electro-optic effect, soliton propagation, and the generation of fields in a crystal by a relativistic electron bunch. Published by Elsevier Inc.
C1 [Gordon, D. F.; Helle, M. H.; Penano, J. R.] Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
RP Gordon, DF (reprint author), Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
EM daniel.gordon@nrl.navy.mil
FU NRL Base Funds; Department of Energy
FX This work was supported by NRL Base Funds and the Department of Energy.
We acknowledge useful conversations with B. Hafizi and A. Ting.
NR 38
TC 1
Z9 1
U1 0
U2 21
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0021-9991
J9 J COMPUT PHYS
JI J. Comput. Phys.
PD OCT 1
PY 2013
VL 250
BP 388
EP 402
DI 10.1016/j.jcp.2013.05.014
PG 15
WC Computer Science, Interdisciplinary Applications; Physics, Mathematical
SC Computer Science; Physics
GA 178GN
UT WOS:000321433800020
ER
PT J
AU Mace, M
Abdullah-al-Mamun, K
Naeem, AA
Gupta, L
Wang, SY
Vaidyanathan, R
AF Mace, Michael
Abdullah-al-Mamun, Khondaker
Naeem, Ali Azzam
Gupta, Lalit
Wang, Shouyan
Vaidyanathan, Ravi
TI A heterogeneous framework for real-time decoding of bioacoustic signals:
Applications to assistive interfaces and prosthesis control
SO EXPERT SYSTEMS WITH APPLICATIONS
LA English
DT Article
DE Human-machine interfaces; Tongue-movement ear pressure signals;
Volitional bioacoustic activity; Pattern classification; Heterogeneous
ensembles; Prosthetic hand control
ID COMPUTER-INTERFACE; TONGUE; COMMUNICATION; TECHNOLOGIES; PEOPLE; ACCESS;
DEVICE
AB Tongue-movement ear pressure (TMEP) signals provide an unobtrusive, completely non-invasive, wearable and assistive human-machine interface (HMI). The HMI concept is based on monitoring volitional bioacoustic activity generated through prescribed tongue motions. In this paper, a heterogeneous decoding framework is presented, enabling effective real-time polychotomous classification between the various tongue actions and dichotomous discrimination of unintended bioacoustic activity from the volitional signals. Using this customised framework and developed software, the real-time performance was evaluated for both three (six subjects) and four action (four subjects) discrimination, using healthy subjects. Ignoring false negative rejections, the system achieved sensitivities of >90% for three-action discrimination and >80% for four action discrimination, across all tested subjects. The interference rejection (IR) capabilities of the framework were also fully demonstrated, using challenging offline data sets. This included a subset of low frequency interference signals with similar temporal characteristics and frequency distributions as the volitional tongue activity. The IR subsystem achieved an average specificity of 76.2% during three-action discrimination and 79.9% during four-action discrimination. To highlight the potential of the system for substituting or augmenting existing assistive interfaces, a case study is presented demonstrating the utility of TMEP signals for hand prosthesis control. Full tongue control was evaluated against three alternative control strategies, namely natural human-hand manipulation, proportional-based control and a hybrid strategy, when performing an everyday object manipulation task. In all cases, the task was completed with the hybrid strategy performing comparably and even outperforming the proportional-based control strategy. (c) 2013 Elsevier Ltd. All rights reserved.
C1 [Mace, Michael; Naeem, Ali Azzam; Vaidyanathan, Ravi] Univ London Imperial Coll Sci Technol & Med, Dept Mech Engn, Med Engn Res Grp, London, England.
[Abdullah-al-Mamun, Khondaker] Univ Toronto, Inst Biomat & Biomed Engn, Toronto, ON, Canada.
[Gupta, Lalit] So Illinois Univ, Dept Elect & Comp Engn, Carbondale, IL 62901 USA.
[Wang, Shouyan] Chinese Acad Sci, Suzhou Inst Biomed Engn & Technol, Suzhou, Peoples R China.
[Wang, Shouyan] Univ Southampton, Inst Sound & Vibrat Res, Southampton SO9 5NH, Hants, England.
[Vaidyanathan, Ravi] USN, Postgrad Sch, Dept Syst Engn, Monterey, CA USA.
RP Mace, M (reprint author), Univ London Imperial Coll Sci Technol & Med, Dept Mech Engn, Med Engn Res Grp, London, England.
EM m.mace11@imperial.ac.uk
OI Mace, Michael/0000-0001-9599-448X
FU UK Engineering and Physical Sciences Research Council (EPSRC)
[EP/F01869X/1, PS6571]
FX The authors would like to offer special thanks to Adam McEvoy of RLS
Steeper, Leeds, UK for his help with the prosthetic hand setup. We would
also like to thank all the subjects for their participation in the
experiments and gratefully acknowledge Think-A-Move, Ltd. of Cleveland,
OH, USA for provision of the generic earpieces. This work was supported
by the UK Engineering and Physical Sciences Research Council (EPSRC)
Grants: EP/F01869X/1 and PS6571 (ICL internal award).
NR 38
TC 4
Z9 4
U1 0
U2 14
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0957-4174
J9 EXPERT SYST APPL
JI Expert Syst. Appl.
PD OCT 1
PY 2013
VL 40
IS 13
BP 5049
EP 5060
DI 10.1016/j.eswa.2013.03.028
PG 12
WC Computer Science, Artificial Intelligence; Engineering, Electrical &
Electronic; Operations Research & Management Science
SC Computer Science; Engineering; Operations Research & Management Science
GA 161RL
UT WOS:000320210900002
ER
PT J
AU Luznik, L
Flack, KA
Lust, EE
Taylor, K
AF Luznik, Luksa
Flack, Karen A.
Lust, Ethan E.
Taylor, Katharin
TI The effect of surface waves on the performance characteristics of a
model tidal turbine
SO RENEWABLE ENERGY
LA English
DT Article
DE Marine current energy; Tidal turbines; Surface waves; Tow tank
experiments; Instantaneous wave phase; Conditional sampling
ID MARINE CURRENT TURBINES; BOTTOM BOUNDARY-LAYER; HYDRODYNAMIC
PERFORMANCE; HILBERT SPECTRUM; TURBULENCE; TUNNEL; OCEAN; FLOW
AB Scale model tests were conducted on a three bladed horizontal axis tidal turbine in a large tow tank facility at the United States Naval Academy. Performance characteristics are presented for a turbine towed at a constant carriage speed for cases with and without surface waves. Intermediate waves were modeled that are representative of swells typically found on the continental shelf of the United States eastern seaboard. The oscillatory wave velocity present in the water column results in significant variations in measured turbine torque and rotational speed as a function of wave phase. This in turn produces cyclic variations in tip speed ratio and power coefficient. The power coefficient over the entire wave phase did not show a difference from the experiments without waves for a range of tip speed ratios, as reported in previous studies. The waves limited the lower range of tip speed ratios at which the turbine could operate. These results highlight the impact of surface waves on turbine design and performance, and the importance of understanding the site-specific wave conditions. Published by Elsevier Ltd.
C1 [Luznik, Luksa; Flack, Karen A.; Lust, Ethan E.; Taylor, Katharin] USN Acad, Dept Mech Engn, Annapolis, MD 21402 USA.
RP Luznik, L (reprint author), USN Acad, Dept Mech Engn, Annapolis, MD 21402 USA.
EM luznik@usna.edu
NR 25
TC 14
Z9 16
U1 2
U2 54
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0960-1481
J9 RENEW ENERG
JI Renew. Energy
PD OCT
PY 2013
VL 58
BP 108
EP 114
DI 10.1016/j.renene.2013.02.022
PG 7
WC GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY; Energy & Fuels
SC Science & Technology - Other Topics; Energy & Fuels
GA 146OJ
UT WOS:000319100100012
ER
PT J
AU Regnier, ED
Shechter, SM
AF Regnier, Eva D.
Shechter, Steven M.
TI State-space size considerations for disease-progression models
SO STATISTICS IN MEDICINE
LA English
DT Article
DE state aggregation; disease progression; transition probability
estimation; Markov models
ID TIME MARKOV-CHAIN; TRANSITION-PROBABILITIES; HISTORY; MATRIX
AB Markov models of disease progression are widely used to model transitions in patients' health state over time. Usually, patients' health status may be classified according to a set of ordered health states. Modelers lump together similar health states into a finite and usually small, number of health states that form the basis of a Markov chain disease-progression model. This increases the number of observations used to estimate each parameter in the transition probability matrix. However, lumping together observably distinct health states also obscures distinctions among them and may reduce the predictive power of the model. Moreover, as we demonstrate, precision in estimating the model parameters does not necessarily improve as the number of states in the model declines. This paper explores the tradeoff between lumping error introduced by grouping distinct health states and sampling error that arises when there are insufficient patient data to precisely estimate the transition probability matrix. Copyright (c) 2013 John Wiley & Sons, Ltd.
C1 [Regnier, Eva D.] Naval Postgrad Sch, Def Resources Management Inst, Monterey, CA USA.
[Shechter, Steven M.] Univ British Columbia, Sauder Sch Business, Vancouver, BC V5Z 1M9, Canada.
RP Regnier, ED (reprint author), Naval Postgrad Sch, Def Resources Management Inst, Monterey, CA USA.
EM eregnier@nps.edu
NR 23
TC 2
Z9 2
U1 1
U2 6
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0277-6715
J9 STAT MED
JI Stat. Med.
PD SEP 30
PY 2013
VL 32
IS 22
BP 3862
EP 3880
DI 10.1002/sim.5808
PG 19
WC Mathematical & Computational Biology; Public, Environmental &
Occupational Health; Medical Informatics; Medicine, Research &
Experimental; Statistics & Probability
SC Mathematical & Computational Biology; Public, Environmental &
Occupational Health; Medical Informatics; Research & Experimental
Medicine; Mathematics
GA 216YV
UT WOS:000324324000007
PM 23609629
ER
PT J
AU Abadier, M
Myers-Ward, RL
Mahadik, NA
Stahlbush, RE
Wheeler, VD
Nyakiti, LO
Eddy, CR
Gaskill, DK
Song, H
Sudarshan, TS
Picard, YN
Skowronski, M
AF Abadier, M.
Myers-Ward, R. L.
Mahadik, N. A.
Stahlbush, R. E.
Wheeler, V. D.
Nyakiti, L. O.
Eddy, C. R., Jr.
Gaskill, D. K.
Song, H.
Sudarshan, T. S.
Picard, Y. N.
Skowronski, M.
TI Nucleation of in-grown stacking faults and dislocation half-loops in
4H-SiC epitaxy
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID CHEMICAL-VAPOR-DEPOSITION; SILICON-CARBIDE; CRYSTAL DEFECTS; EPILAYERS;
DIODES; DEVICES; CVD
AB Ultraviolet photoluminescence, transmission electron microscopy and KOH etching were used to characterize extended defects in 4H-SiC epilayers grown at high growth rates (18 mu m/h). Layers exhibited high densities of in-grown stacking faults and dislocation half-loops. The stacking faults were 8H Shockley-type faults. The Burgers vector of the dislocation half-loops was in the (0001) basal plane. Both defects nucleate within the epilayer at early stages of growth. Defect nucleation is directly correlated with high initial growth rate and is not related to any defects/heterogeneities in the substrate or epilayer. Epilayer growth by nucleation of two-dimensional islands is proposed as a possible mechanism for the formation of both defects, through nucleation of faulted Si-C bilayers. (C) 2013 AIP Publishing LLC.
C1 [Abadier, M.; Picard, Y. N.; Skowronski, M.] Carnegie Mellon Univ, Dept Mat Sci & Engn, Pittsburgh, PA 15213 USA.
[Myers-Ward, R. L.; Mahadik, N. A.; Stahlbush, R. E.; Wheeler, V. D.; Nyakiti, L. O.; Eddy, C. R., Jr.; Gaskill, D. K.] US Naval Res Lab, Washington, DC 20375 USA.
[Song, H.; Sudarshan, T. S.] Univ S Carolina, Deprtment Elect Engn, Columbia, SC 29201 USA.
RP Skowronski, M (reprint author), Carnegie Mellon Univ, Dept Mat Sci & Engn, Pittsburgh, PA 15213 USA.
EM mareks@cmu.edu
RI Skowronski, Marek/A-8934-2011;
OI Skowronski, Marek/0000-0002-2087-0068; Picard,
Yoosuf/0000-0002-2853-5213
FU ONR [N00014.10.10532]; John and Claire Bertucci through the Bertucci
Graduate Fellowship; American Association for Engineering Education NRL
Postdoctoral Fellowship program; Office of Naval Research
FX This work was supported by ONR Grant no. N00014.10.10532 (Scott Coombe,
Program Manager). M.A. acknowledges support of John and Claire Bertucci
through the Bertucci Graduate Fellowship. L.O.N. gratefully acknowledges
the support of the American Association for Engineering Education NRL
Postdoctoral Fellowship program. The authors also acknowledge Tom Nuhfer
for his assistance in high-resolution TEM experiments. Work at the U.S.
Naval Research Laboratory is supported by the Office of Naval Research.
NR 39
TC 2
Z9 2
U1 3
U2 48
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 SEP 28
PY 2013
VL 114
IS 12
AR 123502
DI 10.1063/1.4821242
PG 5
WC Physics, Applied
SC Physics
GA 231CR
UT WOS:000325391100009
ER
PT J
AU Aulbach, J
Schafer, J
Erwin, SC
Meyer, S
Loho, C
Settelein, J
Claessen, R
AF Aulbach, J.
Schaefer, J.
Erwin, S. C.
Meyer, S.
Loho, C.
Settelein, J.
Claessen, R.
TI Evidence for Long-Range Spin Order Instead of a Peierls Transition in
Si(553)-Au Chains
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID SURFACE
AB Stabilization of the Si(553) surface by Au adsorption results in two different atomically defined chain types, one of Au atoms and one of Si. At low temperature these chains develop two-and threefold periodicity, respectively, previously attributed to Peierls instabilities. Here we report evidence from scanning tunneling microscopy that rules out this interpretation. The X3 superstructure of the Si chains vanishes for low tunneling bias, i.e., close the Fermi level. In addition, the Au chains remain metallic despite their period doubling. Both observations are inconsistent with a Peierls mechanism. On the contrary, our results are in excellent, detailed agreement with the Si(553)-Au ground state predicted by density-functional theory, where the X2 periodicity of the Au chain is an inherent structural feature and every third Si atom is spin polarized.
C1 [Aulbach, J.; Schaefer, J.; Meyer, S.; Loho, C.; Settelein, J.; Claessen, R.] Univ Wurzburg, Inst Phys, D-97074 Wurzburg, Germany.
[Aulbach, J.; Schaefer, J.; Meyer, S.; Loho, C.; Settelein, J.; Claessen, R.] Univ Wurzburg, Rontgen Ctr Complex Mat Syst RCCM, D-97074 Wurzburg, Germany.
[Erwin, S. C.] Naval Res Lab, Ctr Computat Mat Sci, Washington, DC 20375 USA.
RP Aulbach, J (reprint author), Univ Wurzburg, Inst Phys, D-97074 Wurzburg, Germany.
RI Loho, Christoph/I-4663-2014; Claessen, Ralph/A-2045-2017
OI Claessen, Ralph/0000-0003-3682-6325
FU Deutsche Forschungsgemeinschaft [FOR1162, FOR1700]; Office of Naval
Research through the Naval Research Laboratory's Basic Research Program
FX We are grateful to C. Blumenstein for technical advice, and acknowledge
financial support by the Deutsche Forschungsgemeinschaft (through Grants
No. FOR1162 and No. FOR1700). Funding for this project was also provided
by the Office of Naval Research through the Naval Research Laboratory's
Basic Research Program. Computations were performed at the DoD Major
Shared Resource Centers at AFRL and ERDC.
NR 21
TC 21
Z9 21
U1 1
U2 28
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 SEP 26
PY 2013
VL 111
IS 13
AR 137203
DI 10.1103/PhysRevLett.111.137203
PG 5
WC Physics, Multidisciplinary
SC Physics
GA 230SY
UT WOS:000325364300018
PM 24116812
ER
PT J
AU Foos, EE
Yoon, W
Lumb, MP
Tischler, JG
Townsendt, TK
AF Foos, Edward E.
Yoon, Woojun
Lumb, Matthew P.
Tischler, Joseph G.
Townsendt, Troy K.
TI Inorganic Photovoltaic Devices Fabricated Using Nanocrystal Spray
Deposition
SO ACS APPLIED MATERIALS & INTERFACES
LA English
DT Article
DE photovoltaic; nanocrystal; processing; CdTe; spray; modeling
ID COLLOIDAL QUANTUM DOTS; SOLAR-CELLS; FILMS; CDSE; CDTE
AB Soluble inorganic nanocrystals offer a potential route to the fabrication of all-inorganic devices using solution deposition techniques. Spray processing offers several advantages over the more common spin- and dip-coating procedures, including reduced material loss during fabrication, higher sample throughput, and deposition over a larger area. The primary difference observed, however, is an overall increase in the film roughness. In an attempt to quantify the impact of this morphology change on the devices, we compare the overall performance of spray-deposited versus spin-coated CdTe-based Schottky junction solar cells and model their dark current-voltage characteristics. Spray deposition of the active layer results in a power conversion efficiency of 2.3 +/- 0.3% with a fill factor of 45.7 +/- 3.4%, V-oc of 0.39 +/- 0.06 V, and J(sc) of 13.3 +/- 3.0 mA/cm(2) under one sun illumination.
C1 [Foos, Edward E.; Yoon, Woojun; Lumb, Matthew P.; Tischler, Joseph G.; Townsendt, Troy K.] Naval Res Lab, Washington, DC 20375 USA.
[Lumb, Matthew P.] George Washington Univ, Washington, DC 20037 USA.
RP Foos, EE (reprint author), Naval Res Lab, Washington, DC 20375 USA.
EM edward.foos@nrl.navy.mil
FU Office of Naval Research; National Research Council
FX The Office of Naval Research is gratefully acknowledged for financial
support. This work was conducted while W. Yoon and T. Townsend held
National Research Council Postdoctoral Fellowships at the Naval Research
Laboratory.
NR 18
TC 7
Z9 7
U1 2
U2 16
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 SEP 25
PY 2013
VL 5
IS 18
BP 8828
EP 8832
DI 10.1021/am402423f
PG 5
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary
SC Science & Technology - Other Topics; Materials Science
GA 294BD
UT WOS:000330016500002
PM 24007356
ER
PT J
AU Anel, JA
Allen, DR
Saenz, G
Gimeno, L
de la Torre, L
AF Anel, Juan A.
Allen, Douglas R.
Saenz, Guadalupe
Gimeno, Luis
de la Torre, Laura
TI Equivalent Latitude Computation Using Regions of Interest (ROI)
SO PLOS ONE
LA English
DT Article
ID REANALYSIS; TRANSPORT
AB This paper introduces a novel algorithm to compute equivalent latitude by applying regions of interest (ROI). The technique is illustrated using code written in Interactive Data Language (IDL). The ROI method is compared with the "piecewise-constant'' method, the approach commonly used in atmospheric sciences, using global fields of atmospheric potential vorticity. The ROI method is considerably more accurate and computationally faster than the piecewise-constant method, and it also works well with irregular grids. Both the ROI and piecewise-constant IDL codes for equivalent latitude are included as a useful reference for the research community.
C1 [Anel, Juan A.; Saenz, Guadalupe] Univ Oxford, Smith Sch Enterprise & Environm, Oxford, England.
[Anel, Juan A.; Gimeno, Luis; de la Torre, Laura] Univ Vigo, EPhysLab, Fac Ciencias, Orense, Spain.
[Allen, Douglas R.] Naval Res Lab, Washington, DC USA.
[Saenz, Guadalupe] Univ Extremadura, Fac Ciencias, Dept Fis, E-06071 Badajoz, Spain.
RP Anel, JA (reprint author), Univ Oxford, Smith Sch Enterprise & Environm, Oxford, England.
EM juan.anel@smithschool.ox.ac.uk
FU TRODIM project [CGL2007-65891-C05-01]; ExCirEs project [CGL2011-24826];
Spanish Ministry of Science and Innovation; Spanish Ministry of Economy
and Competitiveness; Xunta de Galicia under "Programa de Consolidacion e
Estruturacion de Unidades de Investigacion (Grupos de Referencia
Competitiva)"; European Regional Development Fund; University of Oxford;
Engineering and Physical Sciences Research Council of the United
Kingdom; United States Office of Naval Research
FX This work was partially supported by the TRODIM (CGL2007-65891-C05-01)
and ExCirEs projects (CGL2011-24826) funded by the Spanish Ministry of
Science and Innovation, Spanish Ministry of Economy and Competitiveness
and by the Xunta de Galicia under "Programa de Consolidacion e
Estruturacion de Unidades de Investigacion (Grupos de Referencia
Competitiva)'' funded by European Regional Development Fund. JAA
research is partially supported by the University of Oxford and the
Engineering and Physical Sciences Research Council of the United
Kingdom. Work at the Naval Research Lab is sponsored by the United
States Office of Naval Research. Part of the simulations performed were
carried out in the Centro de Supercomputacion de Galicia through a "Reto
Computacional 2009'' project. The funders had no role in study design,
data collection and analysis, decision to publish, or preparation of the
manuscript.
NR 14
TC 0
Z9 0
U1 0
U2 1
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 SEP 25
PY 2013
VL 8
IS 9
AR e72970
DI 10.1371/journal.pone.0072970
PG 8
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 228VC
UT WOS:000325218700006
PM 24086267
ER
PT J
AU Silk, EA
Myre, D
AF Silk, Eric A.
Myre, David
TI Fractal Loop Heat Pipe performance testing with a compressed carbon foam
wick structure
SO APPLIED THERMAL ENGINEERING
LA English
DT Article
DE Loop Heat Pipe; Foam; Heat pipe; Wick; Thermal conductance
ID OPERATING TEMPERATURE; EVAPORATOR
AB This study investigates heat flux performance for a prototype wick structure fabricated from compressed carbon foam when used with a Loop Heat Pipe (LHP) containing a fractal-based evaporator design. The prototype wick structure geometry was based on a previous soda lime glass wick structure designed and manufactured by Mikros Manufacturing Inc., for use with the Fractal Loop Heat Pipe (FLHP). The compressed carbon foam wick structure was manufactured by ERG Aerospace Inc., and machined to specifications comparable to that of the initial soda lime glass wick structure. Machining of the compressed foam as well as performance testing were performed at the United States Naval Academy's School of Engineering. Heat input to the FLHP was supplied via cartridge heaters mounted in a copper block. The copper heater block was placed in intimate contact with the evaporator. The evaporator had a circular cross-sectional area of 0.88 cm(2). Twice distilled, deionized water was used as the working fluid. Thermal performance data was obtained for three different Condenser/Subcooler temperatures under degassed conditions (P-sat of 10.5 kPa at 23 degrees C). The compressed carbon foam wick structure demonstrated successful start-ups in each of the test cases performed and had a maximum heat flux of 70 W/cm(2). Published by Elsevier Ltd.
C1 [Silk, Eric A.] NASA, Goddard Space Flight Ctr, Cryogen & Fluids Branch, Greenbelt, MD 20771 USA.
[Myre, David] US Naval Acad, Dept Aerosp Engn, Annapolis, MD 20412 USA.
RP Silk, EA (reprint author), NASA, Goddard Space Flight Ctr, Cryogen & Fluids Branch, 8800 Greenbelt Rd,Code 552-0, Greenbelt, MD 20771 USA.
EM eric.a.silk@nasa.gov
FU Cryogenics; Fluids Branch at the NASA Goddard Space Flight Center;
United States Naval Academy's Aerospace Engineering Department
FX Eric Silk was supported by the Cryogenics and Fluids Branch at the NASA
Goddard Space Flight Center. David Myre was supported by the United
States Naval Academy's Aerospace Engineering Department. Special thanks
to Brandon and William Stanley for their efforts and consultation in the
machining of the compressed foam wick structure used in this study.
Special thanks also go to Mark McClendon and NASA Goddard Space Flight
Center's Materials Engineering Branch (Code 541) for their support in
providing SEM photos of the silica glass wick structure. Last but not
least, thanks to ERG Aerospace for providing SEM photos of their
compressed foam structures.
NR 29
TC 7
Z9 7
U1 1
U2 19
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 1359-4311
J9 APPL THERM ENG
JI Appl. Therm. Eng.
PD SEP 25
PY 2013
VL 59
IS 1-2
BP 290
EP 297
DI 10.1016/j.applthermaleng.2013.05.030
PG 8
WC Thermodynamics; Energy & Fuels; Engineering, Mechanical; Mechanics
SC Thermodynamics; Energy & Fuels; Engineering; Mechanics
GA 213RR
UT WOS:000324077800032
ER
PT J
AU Eschrig, M
Golubov, AA
Mazin, II
Nadgorny, B
Tanaka, Y
Valls, OT
Zutic, I
AF Eschrig, M.
Golubov, A. A.
Mazin, I. I.
Nadgorny, B.
Tanaka, Y.
Valls, O. T.
Zutic, Igor
TI Comment on "Unified Formalism of Andreev Reflection at a
Ferromagnet/Superconductor Interface"
SO PHYSICAL REVIEW LETTERS
LA English
DT Editorial Material
ID SUPERCONDUCTOR JUNCTIONS; SPIN POLARIZATION
C1 [Eschrig, M.] Univ London, Dept Phys, Egham TW20 0EX, Surrey, England.
[Golubov, A. A.] Univ Twente, Fac Sci & Technol, NL-7500 AE Enschede, Netherlands.
[Golubov, A. A.] Univ Twente, MESA Inst Nanotechnol, NL-7500 AE Enschede, Netherlands.
[Mazin, I. I.] Naval Res Lab, Washington, DC 20375 USA.
[Nadgorny, B.] Wayne State Univ, Dept Phys & Astron, Detroit, MI 48201 USA.
[Tanaka, Y.] Nagoya Univ, Dept Appl Phys, Nagoya, Aichi 4648603, Japan.
[Valls, O. T.] Univ Minnesota, Sch Phys & Astron, Minneapolis, MN 55455 USA.
[Zutic, Igor] SUNY Buffalo, Dept Phys, Buffalo, NY 14260 USA.
RP Eschrig, M (reprint author), Univ London, Dept Phys, Egham TW20 0EX, Surrey, England.
OI Eschrig, Matthias/0000-0003-4954-5549
NR 11
TC 2
Z9 2
U1 1
U2 25
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 SEP 24
PY 2013
VL 111
IS 13
AR 139703
DI 10.1103/PhysRevLett.111.139703
PG 2
WC Physics, Multidisciplinary
SC Physics
GA 222WH
UT WOS:000324762300022
PM 24116824
ER
PT J
AU Keser, AC
Antonsen, TM
Nusinovich, GS
Kashyn, DG
Jensen, KL
AF Keser, A. C.
Antonsen, T. M.
Nusinovich, G. S.
Kashyn, D. G.
Jensen, K. L.
TI Heating of microprotrusions in accelerating structures
SO PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS
LA English
DT Article
ID THERMO-FIELD EMISSION; THERMIONIC EMISSION; ELECTRON-EMISSION;
TEMPERATURE
AB The thermal and field emission of electrons from protrusions on metal surfaces is a possible limiting factor on the performance and operation of high-gradient room temperature accelerator structures. We present here the results of extensive numerical simulations of electrical and thermal behavior of protrusions. We unify the thermal and field emission in the same numerical framework, describe bounds for the emission current and geometric enhancement, then we calculate the Nottingham and Joule heating terms and solve the heat equation to characterize the thermal evolution of emitters under rf electric field. Our findings suggest that heating is entirely due to the Nottingham effect. The time dependence of the rf field leads to a time dependent tip temperature with excursion that depends weakly on rf frequency. We build a phenomenological model to account for the effect of space charge and show that space charge eliminates the possibility of copper tip melting for tips with radii less than 10 mu m with vacuum fields on their surface less than 12 GV/m, and for rf frequencies above 1 GHz.
C1 [Keser, A. C.; Antonsen, T. M.; Nusinovich, G. S.; Kashyn, D. G.] Univ Maryland, Inst Res Elect & Appl Phys, College Pk, MD 20742 USA.
[Jensen, K. L.] Naval Res Lab, Washington, DC 20375 USA.
RP Keser, AC (reprint author), Univ Maryland, Inst Res Elect & Appl Phys, College Pk, MD 20742 USA.
RI Jensen, Kevin/I-1269-2015; Nusinovich, Gregory/C-1314-2017; Antonsen,
Thomas/D-8791-2017
OI Jensen, Kevin/0000-0001-8644-1680; Nusinovich,
Gregory/0000-0002-8641-5156; Antonsen, Thomas/0000-0002-2362-2430
FU Office of High Energy Physics of the U.S. Department of Energy
FX We thank the Office of High Energy Physics of the U.S. Department of
Energy for supporting this work.
NR 20
TC 10
Z9 10
U1 0
U2 8
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-4402
J9 PHYS REV SPEC TOP-AC
JI Phys. Rev. Spec. Top.-Accel. Beams
PD SEP 24
PY 2013
VL 16
IS 9
AR 092001
DI 10.1103/PhysRevSTAB.16.092001
PG 8
WC Physics, Nuclear; Physics, Particles & Fields
SC Physics
GA 222WK
UT WOS:000324762700003
ER
PT J
AU Tatarova, E
Henriques, J
Luhrs, CC
Dias, A
Phillips, J
Abrashev, MV
Ferreira, CM
AF Tatarova, E.
Henriques, J.
Luhrs, C. C.
Dias, A.
Phillips, J.
Abrashev, M. V.
Ferreira, C. M.
TI Microwave plasma based single step method for free standing graphene
synthesis at atmospheric conditions
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID CARBON; HYDROGEN; SHEETS
AB Microwave atmospheric pressure plasmas driven by surface waves were used to synthesize graphene sheets from vaporized ethanol molecules carried through argon plasma. In the plasma, ethanol decomposes creating carbon atoms that form nanostructures in the outlet plasma stream, where external cooling/heating was applied. It was found that the outlet gas stream temperature plays an important role in the nucleation processes and the structural quality of the produced nanostructures. The synthesis of few layers (from one to five) graphene has been confirmed by high-resolution transmission electron microscopy. Raman spectral studies were conducted to determine the ratio of the 2D to G peaks (>2). Disorder D-peak to G-peak intensity ratio decreases when outlet gas stream temperature decreases. (C) 2013 AIP Publishing LLC.
C1 [Tatarova, E.; Henriques, J.; Dias, A.; Ferreira, C. M.] Univ Tecn Lisboa, Inst Super Tecn, Inst Plasmas & Nucl Fus, Lisbon, Portugal.
[Luhrs, C. C.; Phillips, J.] Naval Postgrad Sch, Dept Mech & Aerosp Engn, Monterey, CA 93943 USA.
[Abrashev, M. V.] Univ Sofia, Fac Phys, Sofia 1164, Bulgaria.
RP Tatarova, E (reprint author), Univ Tecn Lisboa, Inst Super Tecn, Inst Plasmas & Nucl Fus, Lisbon, Portugal.
EM e.tatarova@ist.utl.pt
RI Henriques, Julio/K-6576-2015; Abrashev, Miroslav/B-4273-2008;
OI Henriques, Julio/0000-0002-0395-1835; Abrashev,
Miroslav/0000-0002-2571-7863; Ferreira, Carlos/0000-0002-3786-8853;
Tatarova, Elena/0000-0002-9444-0159
FU Portuguese Fundacao para a Ciencia e a Tecnologia [PTDC/FIS/108411/2008]
FX This work was supported by the Portuguese Fundacao para a Ciencia e a
Tecnologia, through the research contract PTDC/FIS/108411/2008.
NR 29
TC 13
Z9 14
U1 1
U2 40
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD SEP 23
PY 2013
VL 103
IS 13
AR 134101
DI 10.1063/1.4822178
PG 5
WC Physics, Applied
SC Physics
GA 229RJ
UT WOS:000325284500111
ER
PT J
AU Chang, WT
AF Chang, Wontae
TI Phenomenological study of inhomogeneous interfacial ferroelectrics
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID THIN-FILMS; PHASE-TRANSITIONS; FIELD DEPENDENCE; TITANATE; SRTIO3
AB Inhomogeneity in ferroelectrics can exist as undesirable defects in the single crystalline structure or as designable factors in the composite structure. Surface or interface is inhomogeneous in nature, and superlattices or mixed-phases are inhomogeneous under plan. Effects of the inhomogeneous interfacial layer on ferroelectric nonlinearity have been investigated using a time-dependent Ginzburg-Landau model based on phenomenological equation for a two-dimensional lattice of ferroelectric unit cells. The simulation is based on Ba0.8Sr0.2TiO3 (BST) with and without the inhomogeneous interfacial layer, e. g., nonswitchable fixed dielectric, switchable linear dielectric, or switchable nonlinear dielectric, and with and without Ginzburg-type gradient effect originated from the interactions between the BST and interfacial layers. Homogenization of the inhomogeneous systems is realized by the gradient effect allowing the gradual variation in polarization between the neighboring unit cells, and it heavily depends on the dielectric type of the interfacial layer-whether or not the gradient effect is applied to the interfacial layer. Effects of frequency, electric field type, depolarization, lattice strain, temperature, and thickness on the inhomogeneous nonlinearity are discussed.
C1 US Naval Res Lab, Div Elect Sci & Technol, Washington, DC 20375 USA.
RP Chang, WT (reprint author), US Naval Res Lab, Div Elect Sci & Technol, Washington, DC 20375 USA.
NR 26
TC 2
Z9 2
U1 0
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
J9 J APPL PHYS
JI J. Appl. Phys.
PD SEP 21
PY 2013
VL 114
IS 11
AR 114101
DI 10.1063/1.4821515
PG 10
WC Physics, Applied
SC Physics
GA 223RU
UT WOS:000324827200049
ER
PT J
AU Dowell, J
Ray, PS
Taylor, GB
Blythe, JN
Clarke, T
Craig, J
Ellingson, SW
Helmboldt, JF
Henning, PA
Lazio, TJW
Schinzel, F
Stovall, K
Wolfe, CN
AF Dowell, J.
Ray, P. S.
Taylor, G. B.
Blythe, J. N.
Clarke, T.
Craig, J.
Ellingson, S. W.
Helmboldt, J. F.
Henning, P. A.
Lazio, T. J. W.
Schinzel, F.
Stovall, K.
Wolfe, C. N.
TI DETECTION AND FLUX DENSITY MEASUREMENTS OF THE MILLISECOND PULSAR
J2145-0750 BELOW 100 MHz
SO ASTROPHYSICAL JOURNAL LETTERS
LA English
DT Article
DE pulsars: general; pulsars: individual (PSR J2145-0750)
ID SCINTILLATION; DISPERSION; TELESCOPE; SPECTRA
AB We present flux density measurements and pulse profiles for the millisecond pulsar PSR J2145-0750 spanning 37 to 81 MHz using data obtained from the first station of the Long Wavelength Array. These measurements represent the lowest frequency detection of pulsed emission from a millisecond pulsar to date. We find that the pulse profile is similar to that observed at 102 MHz. We also find that the flux density spectrum between approximate to 40 MHz to 5 GHz is suggestive of a break and may be better fit by a model that includes spectral curvature with a rollover around 730 MHz rather than a single power law.
C1 [Dowell, J.; Taylor, G. B.; Craig, J.; Henning, P. A.; Schinzel, F.] Univ New Mexico, Dept Phys & Astron, Albuquerque, NM 87131 USA.
[Ray, P. S.] Naval Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Blythe, J. N.] Georgia Inst Technol, Sch Phys, Atlanta, GA USA.
[Clarke, T.; Helmboldt, J. F.] US Naval Res Lab, Washington, DC 20375 USA.
[Ellingson, S. W.; Wolfe, C. N.] Virginia Tech, Bradley Dept Elect & Comp Engn, Blacksburg, VA 24061 USA.
[Lazio, T. J. W.] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA.
[Stovall, K.] Univ Texas Brownsville, Ctr Gravitat Wave Astron, Brownsville, TX 78520 USA.
[Stovall, K.] Univ Texas Brownsville, Dept Phys & Astron, Brownsville, TX 78520 USA.
RP Dowell, J (reprint author), Univ New Mexico, Dept Phys & Astron, Albuquerque, NM 87131 USA.
EM jdowell@unm.edu
RI Stovall, Kevin/D-9844-2014; Helmboldt, Joseph/C-8105-2012;
OI Stovall, Kevin/0000-0002-7261-594X; Ray, Paul/0000-0002-5297-5278
FU Office of Naval Research [N00014-07-C-0147]; National Science Foundation
[AST-1139963, AST-1139974]
FX We thank the anonymous referee for thoughtful comments. Construction of
the LWA has been 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. Part of this research was carried out at the Jet Propulsion
Laboratory, California Institute of Technology, under a contract with
the National Aeronautics and Space Administration.
NR 19
TC 7
Z9 7
U1 0
U2 4
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 2041-8205
J9 ASTROPHYS J LETT
JI Astrophys. J. Lett.
PD SEP 20
PY 2013
VL 775
IS 1
AR L28
DI 10.1088/2041-8205/775/1/L28
PG 5
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 217ET
UT WOS:000324340500028
ER
PT J
AU Oh, E
Susumu, K
Makinen, AJ
Deschamps, JR
Huston, AL
Medintz, IL
AF Oh, Eunkeu
Susumu, Kimihiro
Maekinen, Antti J.
Deschamps, Jeffrey R.
Huston, Alan L.
Medintz, Igor L.
TI Colloidal Stability of Gold Nanoparticles Coated with
Multithiol-Poly(ethylene glycol) Ligands: Importance of Structural
Constraints of the Sulfur Anchoring Groups
SO JOURNAL OF PHYSICAL CHEMISTRY C
LA English
DT Article
ID SELF-ASSEMBLED MONOLAYERS; BIOCOMPATIBLE SEMICONDUCTOR; QUANTUM DOTS;
NANOCRYSTALS; SIZE; CHEMISTRY; NANOTECHNOLOGY; AU(111); FUNCTIONALITIES;
SURFACES
AB Gold nanoparticles (AuNPs) coated with a series of poly(ethylene glycol) (PEG) ligands appended with four different sulfur-based terminal anchoring groups (monothiol, flexible dithiol, constrained dithiol, disulfide) were prepared to explore how the structures of the sulfur-based anchoring groups affect the colloidal stability in aqueous media. The PEG-coated AuNPs were prepared by ligand exchange of citrate-stabilized AuNPs with each ligand. The colloidal stability of the AuNPs in different harsh environmental conditions was monitored visually and spectroscopically. The AuNPs coated with dithiol- or disulfide-PEG exhibited improved stability under high salt concentration and against ligand replacement competition with dithiothreitol compared with those coated with their monothiol counterpart. Importantly, the ligands with structurally constrained dithiol or disulfide showed better colloidal stability and higher sulfur coverage on the Au surface compared to the ligands with more flexible dithiol and monothiol. X-ray photoelectron spectroscopy also revealed that the disulfide-PEG ligand had the highest S coverage on Au surface on the Au surface among the ligands studied. This result was supported by energy minimization modeling studies: the structurally more constrained disulfide ligand has the shortest S S distance and could pack more densely on the Au surface. The experimental results indicate that the colloidal stability of the AuNPs is systematically enhanced in the following order: monothiol < flexible dithiol < constrained dithiol < disulfide. The present study indicates that the colloidal stability of thiolated ligand-functionalized AuNPs can be enhanced by (i) a multidentate chelating effect and (ii) use of the constrained and compact structure of the multidentate anchoring groups.
C1 [Oh, Eunkeu; Susumu, Kimihiro] Sotera Def Solut, Annapolis Jct, MD 20701 USA.
[Oh, Eunkeu; Susumu, Kimihiro; Maekinen, Antti J.; Huston, Alan L.] US Naval Res Lab, Opt Sci Div, Washington, DC 20375 USA.
[Deschamps, Jeffrey R.; Medintz, Igor L.] US Naval Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 USA.
RP Oh, E (reprint author), Sotera Def Solut, 430 Natl Business Pkwy,Suite 100, Annapolis Jct, MD 20701 USA.
EM eunkeuoh@ccs.nrl.navy.mil; igor.medintz@nrl.navy.mil
OI Deschamps, Jeffrey/0000-0001-5845-0010
FU NRL; ONR; DARPA; DTRA
FX This work was supported by NRL, ONR, DARPA, and DTRA. We thank Dr.
Fredrik K. Fatemi for useful discussions about the results.
NR 63
TC 20
Z9 20
U1 4
U2 40
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 SEP 19
PY 2013
VL 117
IS 37
BP 18947
EP 18956
DI 10.1021/jp405265u
PG 10
WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science,
Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 296CL
UT WOS:000330162600019
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
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
Dilks
Ding, F
Dion, A
Djawotho, P
Dong, X
Drachenberg, JL
Draper, JE
Du, CM
Dunkelberger, LE
Dunlop, JC
Efimov, LG
Elnimr, M
Engelage, J
Engle, KS
Eppley, G
Eun, L
Evdokimov, O
Fatemi, R
Fazio, S
Fedorisin, J
Fersch, RG
Filip, P
Finch, E
Fisyak, Y
Flores, CE
Gagliardi, CA
Gangadharan, DR
Garand, D
Geurts, F
Gibson, A
Gliske, S
Grebenyuk, G
Grosnick, D
Guo, Y
Gupta, A
Gupta, S
Guryn, W
Haag, B
Hajkova, O
Hamed, A
Han, LX
Haque, R
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
Kauder, K
Ke, HW
Keane, D
Kechechyan, A
Kesich, A
Kikola, DP
Kiryluk, J
Kisel, I
Kisiel, A
Koetke, DD
Kollegger, T
Konzer, J
Koralt, I
Korsch, W
Kotchenda, L
Kravtsov, P
Krueger, K
Kulakov, I
Kumar, L
Kycia, RA
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
Luo, X
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
Plyku, D
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
Roy, A
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
Shen, WQ
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
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
Vertesi, R
Videbaek, F
Viyogi, YP
Vokal, S
Voloshin, SA
Vossen, A
Wada, M
Walker, M
Wang, F
Wang, G
Wang, H
Wang, JS
Wang, Q
Wang, XL
Wang, Y
Webb, G
Webb, JC
Westfall, GD
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
Yan
Yang, C
Yang, Y
Yang, Y
Yepes, P
Yi, L
Yip, K
Yoo, IK
Zawisza, Y
Zbroszczyk, H
Zha, W
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.
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.
Dilks
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.
Engle, K. S.
Eppley, G.
Eun, L.
Evdokimov, O.
Fatemi, R.
Fazio, S.
Fedorisin, J.
Fersch, R. G.
Filip, P.
Finch, E.
Fisyak, Y.
Flores, C. E.
Gagliardi, C. A.
Gangadharan, D. R.
Garand, D.
Geurts, F.
Gibson, A.
Gliske, S.
Grebenyuk, G.
Grosnick, D.
Guo, Y.
Gupta, A.
Gupta, S.
Guryn, W.
Haag, B.
Hajkova, O.
Hamed, A.
Han, L-X.
Haque, R.
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.
Kauder, K.
Ke, H. W.
Keane, D.
Kechechyan, A.
Kesich, A.
Kikola, D. P.
Kiryluk, J.
Kisel, I.
Kisiel, A.
Koetke, D. D.
Kollegger, T.
Konzer, J.
Koralt, I.
Korsch, W.
Kotchenda, L.
Kravtsov, P.
Krueger, K.
Kulakov, I.
Kumar, L.
Kycia, R. A.
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.
Luo, X.
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.
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.
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.
Roy, A.
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.
Shen, W. Q.
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.
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.
Vertesi, R.
Videbaek, F.
Viyogi, Y. P.
Vokal, S.
Voloshin, S. A.
Vossen, A.
Wada, M.
Walker, 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.
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.
Yan
Yang, C.
Yang, Y.
Yang, Y.
Yepes, P.
Yi, L.
Yip, K.
Yoo, I-K.
Zawisza, Y.
Zbroszczyk, H.
Zha, W.
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 Freeze-out dynamics via charged kaon femtoscopy in root sNN=200 GeV
central Au plus Au collisions
SO PHYSICAL REVIEW C
LA English
DT Article
ID BOSE-EINSTEIN CORRELATIONS; QUARK-GLUON PLASMA; COLLABORATION;
PERSPECTIVE
AB We present measurements of three-dimensional correlation functions of like-sign, low-transverse-momentum kaon pairs from root sNN = 200 GeV Au + Au collisions. A Cartesian surface-spherical harmonic decomposition technique was used to extract the kaon source function. The latter was found to have a three-dimensional Gaussian shape and can be adequately reproduced by Therminator event-generator simulations with resonance contributions taken into account. Compared to the pion one, the kaon source function is generally narrower and does not have the long tail along the pair transverse momentum direction. The kaon Gaussian radii display a monotonic decrease with increasing transverse mass m(T) over the interval of 0.55 <= mT <= 1.15 GeV/c(2). While the kaon radii are adequately described by the m(T) -scaling in the outward and sideward directions, in the longitudinal direction the lowest m(T) value exceeds the expectations from a pure hydrodynamical model prediction.
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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.; 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.
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[Chwastowski, J.; Kycia, R. 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.
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[Schmitz, N.; Seyboth, P.] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany.
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[Cendejas, R.; Dilks; 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.
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[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.; Guo, Y.; Li, C.; Shao, M.; Sun, Y.; Tang, Z.; Wang, X. L.; Xu, Y.; Zawisza, Y.; Zha, W.; 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.
[Chen, J. H.; Han, L-X.; Li, W.; Ma, G. L.; Ma, Y. G.; Shen, W. Q.; Shou, Q. Y.; Zhang, S.; Zhao, J.; Zhong, C.; Zhu, Y. H.] Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China.
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[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.
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[Ahammed, Z.; Banerjee, A.; Chattopadhyay, S.; Haque, R.; Nasim, Md.; Nayak, T. K.; Pal, S. K.; Roy, A.; Sahoo, N. R.; Singaraju, R. N.; Tribedy, P.; Viyogi, Y. P.] Variable Energy Cyclotron Ctr, Kolkata 700064, India.
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[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 Kycia, Radoslaw/J-4397-2015; 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; Aparecido Negrao de Oliveira, Renato/G-9133-2015;
Bruna, Elena/C-4939-2014; Takahashi, Jun/B-2946-2012; Fazio, Salvatore
/G-5156-2010; Yang, Yanyun/B-9485-2014; Lednicky, Richard/K-4164-2013;
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 Kycia, Radoslaw/0000-0002-6390-4627; 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; Bruna, Elena/0000-0001-5427-1461;
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 RHIC Operations Group; RCF at BNL; NERSC Center at LBNL; Open Science
Grid consortium; Offices of NP; HEP within the U.S. DOE Office of
Science; U.S. NSF; Sloan Foundation [CNRS/IN2P3]; FAPESP CNPq of Brazil;
Ministry of Education and Science of the Russian Federation; NNSFC; CAS;
MoST; MoE of China; GA; MSMT of the Czech Republic; FOM and NWO of the
Netherlands; DAE; DST; CSIR of India; PolishMinistry of Science and
Higher Education; National Research Foundation [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 U.S. DOE Office of Science, the U.S. 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; PolishMinistry 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 24
TC 9
Z9 9
U1 0
U2 48
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 SEP 19
PY 2013
VL 88
IS 3
AR 034906
DI 10.1103/PhysRevC.88.034906
PG 8
WC Physics, Nuclear
SC Physics
GA 221CD
UT WOS:000324634100004
ER
PT J
AU Staton, SJR
Kim, SY
Hart, SJ
Collins, GE
Terray, A
AF Staton, Sarah J. R.
Kim, Soo Y.
Hart, Sean J.
Collins, Greg E.
Terray, Alex
TI Pico-Force Optical Exchange (pico-FOX): Utilizing Optical Forces Applied
to an Orthogonal Electroosmotic Flow for Particulate Enrichment from
Mixed Sample Streams
SO ANALYTICAL CHEMISTRY
LA English
DT Article
ID CHROMATOGRAPHY; PARTICLE; SEPARATION; LIGHT; SIZE
AB Results are reported from a combined optical force and electrokinetic microfluidic device that separates individual particulates from molecular components in a mixed sample stream. A pico-Newton optical force was applied to an orthogonal electroosmotic flow carrying a hydrodynamically pinched, mixed sample, resulting in the separation of the various particles from the sample stream. Different combinations of polystyrene, PMMA, and silica particles with a commercially available dye were utilized to test the different separation modes available, from purely optical force to combined optical and electrophoretic forces. The impact of various particle properties on particle separation and separation efficiency were explored, including size (2, 6, 10 mu m), refractive index, and electrophoretic mobility. Particle addressability was achieved by moving particles to different outlets on the basis of particle size, refractive index, and electrophoretic differences. Separations of 6 and 10 mu m polystyrene particles led to only 3% particle contamination in the original sample stream and interparticle type enrichment levels >80%. The unique addressability of three different particle materials (polystyrene, PMMA, and silica) of the same size (2 mu m) led to each being separated into a unique outlet without measurable contamination of the other particle types using optical force and electrophoretic mobility. In addition to particle separation, the device was able to minimize dye diffusion, leading to >95% dye recovery. This combined platform would have applications for noninvasive sample preparation of mixed molecular/particulate systems for mating with traditional analytics as well as efficient removal of harmful, degrading components from complex mixtures.
C1 [Staton, Sarah J. R.; Kim, Soo Y.] CNR, Washington, DC 20418 USA.
[Hart, Sean J.; Collins, Greg E.; Terray, Alex] Naval Res Lab, Washington, DC 20375 USA.
RP Terray, A (reprint author), Naval Res Lab, 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) Postdoctoral Fellowship Program
FX We 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) Postdoctoral Fellowship
Program.
NR 32
TC 1
Z9 1
U1 1
U2 20
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 SEP 17
PY 2013
VL 85
IS 18
BP 8647
EP 8653
DI 10.1021/ac401369h
PG 7
WC Chemistry, Analytical
SC Chemistry
GA 294BM
UT WOS:000330017400025
PM 23964641
ER
PT J
AU Rosenfeld, D
Chemke, R
DeMott, P
Sullivan, RC
Rasmussen, R
McDonough, F
Comstock, J
Schmid, B
Tomlinson, J
Jonsson, H
Suski, K
Cazorla, A
Prather, K
AF Rosenfeld, Daniel
Chemke, Rei
DeMott, Paul
Sullivan, Ryan C.
Rasmussen, Roy
McDonough, Frank
Comstock, Jennifer
Schmid, Beat
Tomlinson, Jason
Jonsson, Haflidi
Suski, Kaitlyn
Cazorla, Alberto
Prather, Kimberly
TI The common occurrence of highly supercooled drizzle and rain near the
coastal regions of the western United States
SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
LA English
DT Article
DE Supercooled rain; Supercooled drizzle; Cloud aerosol interactions
ID AIRCRAFT ICING ENVIRONMENTS; MIXED-PHASE CLOUDS; FREEZING DRIZZLE;
SIERRA-NEVADA; LIQUID WATER; LARGE DROPS; PRECIPITATION DEVELOPMENT;
CONVECTIVE CLOUDS; ICE NUCLEI; PART I
AB Highly supercooled rain and drizzle from cloud tops at -12 to -21 degrees C down to the 0 degrees isotherm was documented by aircraft observations in clouds over a wide range of meteorological situations under relatively pristine marine aerosol conditions. The Gulfstream-1 aircraft during the CalWater campaign in February and early March 2011 measured clouds over the coastal waters of northern California, orographically triggered convective clouds over the foothills of the Sierra Nevada, and orographic layer clouds over Yosemite National Park. Supercooled drizzle in layer clouds near Juneau, Alaska, was measured by the Wyoming King Air as part of a FAA project to study aircraft icing in this region. Low concentrations of cloud condensation nuclei (CCN) were commonly observed in all of these clouds, allowing for the formation of clouds with small concentrations of mostly large drops that coalesced into supercooled drizzle and raindrops. Another common observation was the absence of ice nuclei (IN) and/or ice crystals in measurable concentrations, associated with persistent supercooled drizzle and rain. Average ice crystal concentrations were 0.007l(-1) at the top of convective clouds at -12 degrees C and 0.03l(-1) in the case of layer clouds at -21 degrees C. In combination, these two conditions of low concentrations of CCN and very few IN provide ideal conditions for the formation of highly supercooled drizzle and rain. These results help explain the anomalously high incidences of aircraft icing at cold temperatures in U.S. west coast clouds and highlight the need to include aerosol effects when simulating aircraft icing with cloud models.
C1 [Rosenfeld, Daniel; Chemke, Rei] Hebrew Univ Jerusalem, IL-91904 Jerusalem, Israel.
[DeMott, Paul] Colorado State Univ, Ft Collins, CO 80523 USA.
[Sullivan, Ryan C.] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA.
[Rasmussen, Roy; McDonough, Frank] Natl Ctr Atmospher Res, Boulder, CO 80307 USA.
[Comstock, Jennifer; Schmid, Beat; Tomlinson, Jason] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Jonsson, Haflidi] Naval Postgrad Sch, Monterey, CA USA.
[Suski, Kaitlyn; Cazorla, Alberto; Prather, Kimberly] Univ Calif San Diego, La Jolla, CA 92093 USA.
RP Rosenfeld, D (reprint author), Hebrew Univ Jerusalem, Inst Earth Sci, IL-91904 Jerusalem, Israel.
EM daniel.rosenfeld@huji.ac.il
RI Sullivan, Ryan/B-4674-2008; Rosenfeld, Daniel/F-6077-2016; Prather,
Kimberly/A-3892-2008
OI Sullivan, Ryan/0000-0003-0701-7158; Rosenfeld,
Daniel/0000-0002-0784-7656; Prather, Kimberly/0000-0003-3048-9890
FU California Energy Commission [500-09-032]; U.S. Department of Energy
(DOE) Office of Science (BER) Atmospheric System Research program
FX The deployment of the G-1 aircraft and associated PNNL pilots and
researchers augmented with staff from CIRPAS was funded by the
California Energy Commission under grant 500-09-032. The first author
was partially supported for this study by the U.S. Department of Energy
(DOE) Office of Science (BER) Atmospheric System Research program.
NR 43
TC 12
Z9 12
U1 2
U2 34
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 SEP 16
PY 2013
VL 118
IS 17
BP 9819
EP 9833
DI 10.1002/jgrd.50529
PG 15
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 232JH
UT WOS:000325489300038
ER
PT J
AU Helle, MH
Jones, TG
Penano, JR
Kaganovich, D
Ting, A
AF Helle, M. H.
Jones, T. G.
Penano, J. R.
Kaganovich, D.
Ting, A.
TI Formation and propagation of meter-scale laser filaments in water
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID STIMULATED RAMAN-SCATTERING; PLASMA; PULSES; BEAMS
AB We report the demonstration, characterization, and modeling of meter-scale underwater optical filaments using a nanosecond pulsed laser. We observed single filament formation for P/P-CRIT = 1-5, where P-CRIT similar to 1 MW in water. We employed a variable distance water tube to characterize laser pulse evolution and filament formation. Filaments with uniform radius 50 +/- 10 mu m persisted for 55 cm (>35 Rayleigh lengths). Significant forward Stimulated Raman Scattering (up to 60%) was observed and characterized. Simulation results for propagation distances and radii were in agreement with experiment, and predict a structured plasma with peak density of 1.5 x 10(18) cm(-3).
C1 [Helle, M. H.; Jones, T. G.; Penano, J. R.; Kaganovich, D.; Ting, A.] Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
RP Helle, MH (reprint author), Naval Res Lab, Div Plasma Phys, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM mike.helle@nrl.navy.mil
OI Kaganovich, Dmitri/0000-0002-0905-5871
FU Naval Research Laboratory Base Program
FX This work was supported by the Naval Research Laboratory Base Program.
We acknowledge helpful discussions with B. Hafizi and D. F. Gordon.
NR 24
TC 8
Z9 8
U1 0
U2 9
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 SEP 16
PY 2013
VL 103
IS 12
AR 121101
DI 10.1063/1.4821447
PG 4
WC Physics, Applied
SC Physics
GA 223RM
UT WOS:000324826000001
ER
PT J
AU Kaganovich, D
Penano, JR
Helle, MH
Gordon, DF
Hafizi, B
Ting, A
AF Kaganovich, D.
Penano, J. R.
Helle, M. H.
Gordon, D. F.
Hafizi, B.
Ting, A.
TI Origin and control of the subpicosecond pedestal in femtosecond laser
systems
SO OPTICS LETTERS
LA English
DT Article
ID TI-SAPPHIRE LASER; TEMPORAL CONTRAST; PULSES; GENERATION; RATIO
AB The picosecond time scale pedestal of a multiterawatt femtosecond laser pulse is investigated experimentally and analytically. The origin of the pedestal is related to the finite bandwidth of the laser system. By deliberately introducing a modulated spectrum with minima that match this limited bandwidth, the pedestal can be reduced, with no deleterious effect on the main pulse. Using this technique, we experimentally demonstrate a subpicosecond scale order of magnitude enhancement of contrast ratio while preserving the energy in the main pulse.
C1 [Kaganovich, D.; Penano, J. R.; Helle, M. H.; Gordon, D. F.; Hafizi, B.; Ting, A.] Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
RP Kaganovich, D (reprint author), Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
EM dmitri.kaganovich@nrl.navy.mil
OI Kaganovich, Dmitri/0000-0002-0905-5871
FU DOE [DE-SC0006759]; NRL 6.1
FX This work is supported by DOE Inter-agency agreement DE-SC0006759 and
NRL 6.1 funding.
NR 15
TC 9
Z9 9
U1 0
U2 11
PU OPTICAL SOC AMER
PI WASHINGTON
PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA
SN 0146-9592
J9 OPT LETT
JI Opt. Lett.
PD SEP 15
PY 2013
VL 38
IS 18
BP 3635
EP 3638
DI 10.1364/OL.38.003635
PG 4
WC Optics
SC Optics
GA 228TH
UT WOS:000325212800043
PM 24104833
ER
PT J
AU Boris, JP
AF Boris, Jay Paul
TI Flux-Corrected Transport looks at forty
SO COMPUTERS & FLUIDS
LA English
DT Review
DE Flux-Corrected Transport (FCT); Monotonicity; Positivity; Computational
Fluid Dynamics (CFDs); Large Eddy Simulation (LES); Monotone Integrated
Large Eddy Simulation (MILES); Implicit Large Eddy Simulation (ILES)
ID LARGE-EDDY SIMULATION; NUMERICAL SIMULATIONS; DETONATION ENGINES;
HIGH-RESOLUTION; FCT ALGORITHMS; INSTABILITIES; FLOWS; JETS; TURBULENCE;
DYNAMICS
AB This year, 2013, marks the 40th anniversary of the journal article "Flux-Corrected Transport I. SHASTA, A Fluid Transport Algorithm That Works" by Jay Boris and David Book [1]. Flux-Corrected Transport (FCT) removed a serious roadblock to advances in Computational Fluid Dynamics (CFD) by enabling the accurate treatment of strong, time-dependent shock problems in blast, reactive-flow, and combustion physics, and in aerodynamics and astrophysics. Steep gradients in conserved fluid variables could now be convected across a computational grid without the appearance of spurious oscillations and physically impossible negative values. The nonlinear "flux-correction" algorithm introduced in FCT imposes the physical properties of conservation, locality, causality, and monotonicity on the numerical solutions for convection without adding a great deal of numerical diffusion. This article shows that implementing these physical properties in solving the continuity equation through high-resolution FCT also results in a serviceable Large-Eddy Simulation treatment of turbulent flows without need for additional "subgrid turbulence models." We have named this simplified approach Monotone Integrated Large Eddy Simulation (MILES). (C) 2013 Elsevier Ltd. All rights reserved.
C1 US Naval Res Lab, Washington, DC 20375 USA.
RP Boris, JP (reprint author), US Naval Res Lab, Washington, DC 20375 USA.
EM boris@lcp.nrl.navy.mil
NR 92
TC 3
Z9 3
U1 3
U2 30
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0045-7930
EI 1879-0747
J9 COMPUT FLUIDS
JI Comput. Fluids
PD SEP 15
PY 2013
VL 84
BP 113
EP 126
DI 10.1016/j.compfluid.2013.05.004
PG 14
WC Computer Science, Interdisciplinary Applications; Mechanics
SC Computer Science; Mechanics
GA 205SE
UT WOS:000323464300011
ER
PT J
AU Lumb, MP
Yakes, MK
Gonzalez, M
Tischler, JG
Walters, RJ
AF Lumb, M. P.
Yakes, M. K.
Gonzalez, M.
Tischler, J. G.
Walters, R. J.
TI Optical properties of Si-doped and Be-doped InAlAs lattice-matched to
InP grown by molecular beam epitaxy
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID GAAS; MODEL; GA0.47IN0.53AS; GASB; INAS; INSB; GAP
AB In this paper, we determine the optical constants and carrier mobilities of Si-doped and Be-doped InAlAs lattice matched to InP. The samples were grown using molecular beam epitaxy and characterized using Hall measurements, variable angle spectroscopic ellipsometry, and room temperature photoluminescence spectroscopy. A Moss-Burstein shift in the fundamental absorption edge was observed in both Si-doped and Be-doped materials. We fitted a multiple-oscillator, critical point model to the dielectric function of the materials extracted using the spectroscopic ellipsometry. The tabulated input parameters of this model allow for accurate calculations of the dielectric function of doped InAlAs to be made, which is useful information for simulating a variety of InP-based optoelectronic devices. (C) 2013 AIP Publishing LLC.
C1 [Lumb, M. P.] George Washington Univ, Dept Elect & Comp Engn, Washington, DC 20037 USA.
[Lumb, M. P.; Yakes, M. K.; Gonzalez, M.; Tischler, J. G.; Walters, R. J.] Naval Res Lab, Washington, DC 20375 USA.
[Gonzalez, M.] Sotera Def Solut Inc, Annapolis Jct, MD 20701 USA.
RP Lumb, MP (reprint author), George Washington Univ, Dept Elect & Comp Engn, 2121 I St NW, Washington, DC 20037 USA.
FU Office of Naval Research
FX The authors would like to thank Dr. Paul Sheehan for his helpful
assistance and guidance with the spectroscopic ellipsometric
measurements. This work was funded by the Office of Naval Research.
NR 25
TC 8
Z9 8
U1 3
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 0021-8979
J9 J APPL PHYS
JI J. Appl. Phys.
PD SEP 14
PY 2013
VL 114
IS 10
AR 103504
DI 10.1063/1.4820519
PG 7
WC Physics, Applied
SC Physics
GA 219GZ
UT WOS:000324495600013
ER
PT J
AU Pan, ZG
Jensen, KL
Montgomery, EJ
AF Pan, Zhigang
Jensen, Kevin L.
Montgomery, Eric J.
TI Modeling the resupply, diffusion, and evaporation of cesium on the
surface of controlled porosity dispenser photocathodes
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID FREE-ELECTRON LASERS; TUNGSTEN; CATHODE; ATOMS; FLOW; PHOTOEMITTER;
PERFORMANCE; DESORPTION; OPERATION; INJECTOR
AB A controlled porosity dispenser (CPD) photocathode is currently being explored and developed to replace the Cs during operation and increase photocathode lifetime. Experimental results from cesium (Cs) emission of a sintered-wire tungsten CPD are presented and are used to inform a theoretical model of Cs resupply, diffusion, and evaporation on the surface of the photocathode. The evaporation of Cs 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 Cs with the surface metal as well as with other Cs atoms. It is found that for typical activation temperatures within the range of 500 K-750K, differences of less than 5% between the quantum efficiency (QE) maximum and minimum over ideal homogenous surfaces occur, even when variations to mimic surface non-uniformity due to pore blockage are included. The theoretical evaporation rates of sub-monolayer surface coverage of Cs compare well to the data of Taylor and Langmuir [I. Langmuir and J. B. Taylor, Phys. Rev. 40, 463-464 (1932)] and reproduce the nonlinear behavior of evaporation with varying coverage and temperature. (C) 2013 AIP Publishing LLC.
C1 [Pan, Zhigang; Montgomery, Eric J.] Univ Maryland, IREAP, College Pk, MD 20742 USA.
[Pan, Zhigang; Jensen, Kevin L.] Naval Res Lab, Washington, DC 20375 USA.
RP Pan, ZG (reprint author), Univ Maryland, IREAP, 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 gratefully acknowledge the support provided by the Office of Naval
Research and the Joint Technology Office. We benefitted from the work by
Alan Todd, Doug Holmes, and Jangho Park at Advanced Energy Systems
(AES), and by Lawrence Ives at Calabazas Creek Research (CCR). We also
thank D. W. Feldman, P. G. O'Shea, and J. J. Petillo for many useful
discussions.
NR 48
TC 1
Z9 1
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 0021-8979
J9 J APPL PHYS
JI J. Appl. Phys.
PD SEP 14
PY 2013
VL 114
IS 10
AR 104906
DI 10.1063/1.4820262
PG 14
WC Physics, Applied
SC Physics
GA 219GZ
UT WOS:000324495600072
ER
PT J
AU Stanton, TP
Shaw, WJ
Truffer, M
Corr, HFJ
Peters, LE
Riverman, KL
Bindschadler, R
Holland, DM
Anandakrishnan, S
AF Stanton, T. P.
Shaw, W. J.
Truffer, M.
Corr, H. F. J.
Peters, L. E.
Riverman, K. L.
Bindschadler, R.
Holland, D. M.
Anandakrishnan, S.
TI Channelized Ice Melting in the Ocean Boundary Layer Beneath Pine Island
Glacier, Antarctica
SO SCIENCE
LA English
DT Article
ID WEST ANTARCTICA; SHELF; SHEET
AB Ice shelves play a key role in the mass balance of the Antarctic ice sheets by buttressing their seaward-flowing outlet glaciers; however, they are exposed to the underlying ocean and may weaken if ocean thermal forcing increases. An expedition to the ice shelf of the remote Pine Island Glacier, a major outlet of the West Antarctic Ice Sheet that has rapidly thinned and accelerated in recent decades, has been completed. Observations from geophysical surveys and long-term oceanographic instruments deployed down bore holes into the ocean cavity reveal a buoyancy-driven boundary layer within a basal channel that melts the channel apex by 0.06 meter per day, with near-zero melt rates along the flanks of the channel. A complex pattern of such channels is visible throughout the Pine Island Glacier shelf.
C1 [Stanton, T. P.; Shaw, W. J.] Naval Postgrad Sch, Dept Oceanog, Monterey, CA 93943 USA.
[Truffer, M.] Univ Alaska, Inst Geophys, Fairbanks, AK 99775 USA.
[Corr, H. F. J.] British Antarctic Survey, Cambridge CB3 OET, England.
[Peters, L. E.; Riverman, K. L.; Anandakrishnan, S.] Penn State Univ, Dept Geosci, University Pk, PA 16802 USA.
[Peters, L. E.; Riverman, K. L.; Anandakrishnan, S.] Penn State Univ, Earth & Environm Syst Inst, University Pk, PA 16802 USA.
[Bindschadler, R.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Holland, D. M.] NYU, Dept Math, New York, NY 10012 USA.
RP Stanton, TP (reprint author), Naval Postgrad Sch, Dept Oceanog, Monterey, CA 93943 USA.
EM stanton@nps.edu
FU NSF's Office of Polar Programs under NSF [ANT-0732926]; NASA's
Cryospheric Sciences Program; New York University Abhu Dabi grant
[1204]; Natural Environment Research Council-British Antarctic Survey
Polar Science for Planet Earth Program
FX Data presented here are archived with the supplementary materials and
also as a MATLAB data structure at www.oc.nps.edu/similar to
stanton/pig/data/data.html/PIGSITE1_first35days. The authors acknowledge
the contributions of J. Stockel in software development and deployment
of the ocean instruments, D. Pomraning in designing and manning the
hot-water drill equipment, and M. Shortt for making the British
Antarctic Survey pRES field measurements. Outstanding logistic and
safety support was provided by K. Gibbon, D. Einerson, E. Steinarsson,
F. Mcarthy, S. Consalvi, the PIG support camp personnel, and the NSF
Antarctic support team. This research project was supported by NSF's
Office of Polar Programs under NSF grants including ANT-0732926, funding
from NASA's Cryospheric Sciences Program, New York University Abhu Dabi
grant 1204, and the Natural Environment Research Council-British
Antarctic Survey Polar Science for Planet Earth Program.
NR 17
TC 30
Z9 30
U1 2
U2 42
PU AMER ASSOC ADVANCEMENT SCIENCE
PI WASHINGTON
PA 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 USA
SN 0036-8075
J9 SCIENCE
JI Science
PD SEP 13
PY 2013
VL 341
IS 6151
BP 1236
EP 1239
DI 10.1126/science.1239373
PG 4
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 215ZA
UT WOS:000324248800042
PM 24031016
ER
PT J
AU Guenthner, AJ
Reams, JT
Lamison, KR
Ramirez, SM
Swanson, DD
Yandek, GR
Sahagun, CM
Davis, MC
Mabry, JM
AF Guenthner, Andrew J.
Reams, Josiah T.
Lamison, Kevin R.
Ramirez, Sean M.
Swanson, David D.
Yandek, Gregory R.
Sahagun, Christopher M.
Davis, Matthew C.
Mabry, Joseph M.
TI Synergistic Physical Properties of Cocured Networks Formed from Di- and
Tricyanate Esters
SO ACS APPLIED MATERIALS & INTERFACES
LA English
DT Article
DE thermosetting resin; cyanate ester; polymer blends; polycyanurate
networks; flexural properties; cure kinetics
ID E-CYANATE ESTER; CURE KINETICS; POLYCYANURATE NETWORKS;
THERMAL-PROPERTIES; TRANSITION-TEMPERATURE; THERMOSETTING POLYMERS;
MECHANICAL-PROPERTIES; DICYANATE ESTER; BISPHENOL-A; RESINS
AB The co-cyclotrimerization of two tricyanate ester monomers, Primaset PT-30 and 1,2,3-tris(4-cyanato)propane (FlexCy) in equal parts by weight with Primaset LECy, a liquid dicyanate ester, was investigated for the purpose of exploring synergistic performance benefits. The monomer mixtures formed stable, homogeneous blends that remained in the supercooled liquid state for long periods at room temperature, thereby providing many of the processing advantages of LECy in combination with significantly higher glass transition temperatures (315-360 degrees C at full cure) due to the presence of the tricyanate-derived segments in the conetwork. Interestingly, the glass transition temperatures of the conetworks after cure at 210 degrees C, at full cure, and after immersion in 85 C water for 96 h were all higher than predicted by the Flory-Fox equation, most significantly for the samples immersed in hot water. Conetworks comprising equal parts by weight of PT-30 and LECy retained a "wet" glass transition temperature near 270 degrees C. The onset of thermochemical degradation for conetworks was dominated by that of the thermally less stable component, while char yields after the initial degradation step were close to values predicted by a linear rule of mixtures. Values for moisture uptake and density in the conetworks also showed behavior that was not clearly different from a linear rule of mixtures. An analysis of the flexural properties of catalyzed versions of these conetworks revealed that, when cured under the same conditions, conetworks containing 50 wt % PT-30 and 50 wt % LECy exhibited higher modulus than networks containing only LECy while conetworks containing 50 wt % FlexCy and 50 wt % LECy exhibited a lower modulus but significantly higher flexural strength and strain to failure. Thus, in the case of "FlexCy", LECy was copolymerized with a tricyanate that provided both improved toughness and a higher glass transition temperature.
C1 [Guenthner, Andrew J.; Swanson, David D.; Yandek, Gregory R.; Mabry, Joseph M.] US Air Force, Res Lab, Prop Directorate, Edwards AFB, CA 93524 USA.
[Reams, Josiah T.; Lamison, Kevin R.; Ramirez, Sean M.] ERC Inc, Edwards AFB, CA 93524 USA.
[Davis, Matthew C.] Naval Air Warfare Ctr, Weap Div, China Lake, CA 93555 USA.
[Sahagun, Christopher M.] US Air Force, Res Lab, Natl Res Council, Edwards AFB, CA 93524 USA.
RP Guenthner, AJ (reprint author), US Air Force, Res Lab, Prop Directorate, Edwards AFB, CA 93524 USA.
EM andrew.guenthner@edwards.af.mil
FU Office of Naval Research; Air Force Office of Scientific Research; Air
Force Research Laboratory; National Research Council Research
Associateship Program
FX The support of the Office of Naval Research, the Air Force Office of
Scientific Research, the Air Force Research Laboratory, and the National
Research Council Research Associateship Program (JR) are gratefully
acknowledged.
NR 63
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U2 18
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 SEP 11
PY 2013
VL 5
IS 17
BP 8772
EP 8783
DI 10.1021/am402640p
PG 12
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary
SC Science & Technology - Other Topics; Materials Science
GA 294BJ
UT WOS:000330017100068
PM 23932017
ER
PT J
AU Marti, A
Antolin, E
Linares, PG
Ramiro, I
Artacho, I
Lopez, E
Hernandez, E
Mendes, MJ
Mellor, A
Tobias, I
Marron, DF
Tablero, C
Cristobal, AB
Bailey, CG
Gonzalez, M
Yakes, M
Lumb, MP
Walters, R
Luque, A
AF Marti, Antonio
Antolin, Elisa
Garcia Linares, Pablo
Ramiro, Inigo
Artacho, Irene
Lopez, Esther
Hernandez, Estela
Mendes, Manuel J.
Mellor, Alex
Tobias, Ignacio
Fuertes Marron, David
Tablero, Cesar
Cristobal, Ana B.
Bailey, Christopher G.
Gonzalez, Maria
Yakes, Michael
Lumb, Mathew P.
Walters, Robert
Luque, Antonio
TI Six not-so-easy pieces in intermediate band solar cell research
SO JOURNAL OF PHOTONICS FOR ENERGY
LA English
DT Article
DE intermediate band solar cells; next generation solar cells; quantum dots
ID QUANTUM-DOT; SEMICONDUCTORS; EFFICIENCY; ALLOYS
AB The concept of intermediate band solar cell (IBSC) is, apparently, simple to grasp. However, since the idea was proposed, our understanding has improved and some concepts can now be explained more clearly than when the concept was initially introduced. Clarifying these concepts is important, even if they are well known for the advanced researcher, so that research efforts can be driven in the right direction from the start. The six pieces of this work are: Does a miniband need to be formed when the IBSC is implemented with quantum dots? What are the problems for each of the main practical approaches that exist today? What are the simplest experimental techniques to demonstrate whether an IBSC is working as such or not? What is the issue with the absorption coefficient overlap and the Mott's transition? What would the best system be, if any? (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 [Marti, Antonio; Antolin, Elisa; Garcia Linares, Pablo; Ramiro, Inigo; Artacho, Irene; Lopez, Esther; Hernandez, Estela; Mendes, Manuel J.; Mellor, Alex; Tobias, Ignacio; Fuertes Marron, David; Tablero, Cesar; Cristobal, Ana B.; Luque, Antonio] Univ Politecn Madrid, Inst Energia Solar, ETSI Telecomunicac, E-28040 Madrid, Spain.
[Antolin, Elisa] Univ Nottingham, Sch Phys, Nottingham NG7 2RD, England.
[Bailey, Christopher G.; Gonzalez, Maria; Yakes, Michael; Lumb, Mathew P.; Walters, Robert] US Naval Res Lab, Washington, DC USA.
[Gonzalez, Maria] Sotera Def Solut, Largo, MD USA.
[Lumb, Mathew P.] George Washington Univ, Washington, DC USA.
RP Marti, A (reprint author), Univ Politecn Madrid, Inst Energia Solar, ETSI Telecomunicac, Avd Complutense 30, E-28040 Madrid, Spain.
EM amarti@etsit.upm.es
RI Marti, Antonio/L-2791-2014; Artacho, Irene/M-2909-2014; Antolin,
Elisa/M-4097-2014; Ramiro, Inigo/K-5543-2015; Mendes,
Manuel/K-7215-2015; Tobias, Ignacio/B-6292-2013; Garcia-Linares,
Pablo/F-8599-2016; Tablero Crespo, Cesar/P-7083-2014
OI Marti, Antonio/0000-0002-8841-7091; Artacho, Irene/0000-0003-0213-2966;
Antolin, Elisa/0000-0002-5220-2849; Ramiro, Inigo/0000-0002-9663-4002;
Mendes, Manuel/0000-0002-7374-0726; Tobias, Ignacio/0000-0001-6154-5870;
Garcia-Linares, Pablo/0000-0003-2369-3017; Tablero Crespo,
Cesar/0000-0001-9721-1549
FU European Commission through the NGCPV Project [283798]; Department of
the US Navy [N62909-12-1-7108]; European Commission
[PIEF-GA-2011-302489]
FX This work has been supported by the European Commission through the
NGCPV Project (Grant No. 283798) and by the Department of the US Navy
(Grant No. N62909-12-1-7108). E. A. acknowledges a Marie Curie
Fellowship from the European Commission (Project Siracusa, Grant No.
PIEF-GA-2011-302489).
NR 70
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U1 3
U2 41
PU SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98225 USA
SN 1947-7988
J9 J PHOTON ENERGY
JI J. Photonics Energy
PD SEP 11
PY 2013
VL 3
AR 031299
DI 10.1117/1.JPE.3.031299
PG 11
WC Materials Science, Multidisciplinary; Optics; Physics, Applied
SC Materials Science; Optics; Physics
GA 214TP
UT WOS:000324159000001
ER
PT J
AU Solenov, D
Junkermeier, C
Reinecke, TL
Velizhanin, KA
AF Solenov, Dmitry
Junkermeier, Chad
Reinecke, Thomas L.
Velizhanin, Kirill A.
TI Tunable Adsorbate-Adsorbate Interactions on Graphene
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID ELASTIC INTERACTION; ADATOMS
AB We propose a mechanism to control the interaction between adsorbates on graphene. The interaction between a pair of adsorbates-the change in adsorption energy of one adsorbate in the presence of another-is dominated by the interaction mediated by graphene's pi electrons and has two distinct regimes. Ab initio density functional, numerical tight-binding, and analytical calculations are used to develop the theory. We demonstrate that the interaction can be tuned in a wide range by adjusting the adsorbate-graphene bonding or the chemical potential.
C1 [Solenov, Dmitry; Junkermeier, Chad] Natl Acad, Natl Res Council, Washington, DC 20001 USA.
[Reinecke, Thomas L.] Naval Res Lab, Washington, DC 20375 USA.
[Velizhanin, Kirill A.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
RP Solenov, D (reprint author), Naval Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM d.solenov@gmail.com; kirill@lanl.gov
RI Velizhanin, Kirill/C-4835-2008
FU ONR; NRC/NRL; DOE at LANL [DE-AC52-06NA25396]
FX This work was supported in part by the ONR, NRC/NRL, and by DOE at LANL
under Contract No. DE-AC52-06NA25396. Computer resources were provided
by the DOD HPCMP.
NR 34
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U1 2
U2 40
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 SEP 10
PY 2013
VL 111
IS 11
AR 115502
DI 10.1103/PhysRevLett.111.115502
PG 5
WC Physics, Multidisciplinary
SC Physics
GA 215TM
UT WOS:000324233400014
PM 24074105
ER
PT J
AU Huang, LL
Krupkin, M
Bashan, A
Yonath, A
Massa, L
AF Huang, Lulu
Krupkin, Miri
Bashan, Anat
Yonath, Ada
Massa, Lou
TI Protoribosome by quantum kernel energy method
SO PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF
AMERICA
LA English
DT Article
DE bonding apparatus; puromycin; interaction energy; self-assembly;
chemical model
ID TARGET INTERACTION ENERGIES; TRANSFER-RNA; RIBOSOME; DENSITY; DNA
AB Experimental evidence suggests the existence of an RNA molecular prebiotic entity, called by us the "protoribosome," which may have evolved in the RNA world before evolution of the genetic code and proteins. This vestige of the RNA world, which possesses all of the capabilities required for peptide bond formation, seems to be still functioning in the heart of all of the contemporary ribosome. Within the modern ribosome this remnant includes the peptidyl transferase center. Its highly conserved nucleotide sequence is suggestive of its robustness under diverse environmental conditions, and hence on its prebiotic origin. Its twofold pseudosymmetry suggests that this entity could have been a dimer of self-folding RNA units that formed a pocket within which two activated amino acids might be accommodated, similar to the binding mode of modern tRNA molecules that carry amino acids or peptidyl moieties. Using quantum mechanics and crystal coordinates, this work studies the question of whether the putative protoribosome has properties necessary to function as an evolutionary precursor to the modern ribosome. The quantum model used in the calculations is density functional theory-B3LYP/3-21G*, implemented using the kernel energy method to make the computations practical and efficient. It occurs that the necessary conditions that would characterize a practicable protoribosome-namely (i) energetic structural stability and (ii) energetically stable attachment to substrates-are both well satisfied.
C1 [Huang, Lulu] Naval Res Lab, Ctr Computat Mat Sci, Washington, DC 20375 USA.
[Krupkin, Miri; Bashan, Anat; Yonath, Ada] Weizmann Inst Sci, Dept Biol Struct, IL-76100 Rehovot, Israel.
[Massa, Lou] CUNY Hunter Coll, New York, NY 10065 USA.
[Massa, Lou] CUNY, Grad Sch, New York, NY 10065 USA.
RP Yonath, A (reprint author), Weizmann Inst Sci, Dept Biol Struct, IL-76100 Rehovot, Israel.
EM ada.yonath@weizmann.ac.il
OI Krupkin, Miri/0000-0002-5917-0894
FU Office of Naval Research through the Naval Research Laboratory's Basic
Research Program; US Naval Research Laboratory [47203-00 01];
Professional Staff Congress City University of New York [63842-00 41];
Israel Academy of Sciences and Humanities; European Research Council
[322581]
FX We thank Paul Whitford for helpful communication. L.H. was funded by the
Office of Naval Research through the Naval Research Laboratory's Basic
Research Program. L. M. was funded by the US Naval Research Laboratory
(Project 47203-00 01) and by a Professional Staff Congress City
University of New York Award (Project 63842-00 41). M. K is supported by
the Adams Fellowship Program of the Israel Academy of Sciences and
Humanities. Funding was received from the European Research Council
FP7/2007-2013/ERC Grant 322581. A.Y. holds the Martin and Helen Kimmel
Professorial Chair.
NR 35
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U1 0
U2 16
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 SEP 10
PY 2013
VL 110
IS 37
BP 14900
EP 14905
DI 10.1073/pnas.1314112110
PG 6
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 214IF
UT WOS:000324125100031
PM 23980159
ER
PT J
AU Elderd, BD
Rehill, BJ
Haynes, KJ
Dwyer, G
AF Elderd, Bret D.
Rehill, Brian J.
Haynes, Kyle J.
Dwyer, Greg
TI Induced plant defenses, host-pathogen interactions, and forest insect
outbreaks
SO PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF
AMERICA
LA English
DT Article
DE host-pathogen model; Lymantria dispar; complex population dynamics;
spatial model; hydrolyzable tannins
ID MOTH LYMANTRIA-DISPAR; AMERICAN GYPSY-MOTH; POPULATION-CYCLES; SPATIAL
SYNCHRONY; DISEASE DYNAMICS; IMMUNE DEFENSE; HERBIVORE; QUALITY; VIRUS;
DEFOLIATORS
AB Cyclic outbreaks of defoliating insects devastate forests, but their causes are poorly understood. Outbreak cycles are often assumed to be driven by density-dependent mortality due to natural enemies, because pathogens and predators cause high mortality and because natural-enemy models reproduce fluctuations in defoliation data. The role of induced defenses is in contrast often dismissed, because toxic effects of defenses are often weak and because induced-defense models explain defoliation data no better than natural-enemy models. Natural-enemy models, however, fail to explain gypsy moth outbreaks in North America, in which outbreaks in forests with a higher percentage of oaks have alternated between severe and mild, whereas outbreaks in forests with a lower percentage of oaks have been uniformly moderate. Here we show that this pattern can be explained by an interaction between induced defenses and a natural enemy. We experimentally induced hydrolyzable-tannin defenses in red oak, to show that induction reduces variability in a gypsy moth's risk of baculovirus infection. Because this effect can modulate outbreak severity and because oaks are the only genus of gypsy moth host tree that can be induced, we extended a natural-enemy model to allow for spatial variability in inducibility. Our model shows alternating outbreaks in forests with a high frequency of oaks, and uniform outbreaks in forests with a low frequency of oaks, matching the data. The complexity of this effect suggests that detecting effects of induced defenses on defoliator cycles requires a combination of experiments and models.
C1 [Elderd, Bret D.] Louisiana State Univ, Dept Biol Sci, Baton Rouge, LA 70803 USA.
[Rehill, Brian J.] USN Acad, Dept Chem, Annapolis, MD 21402 USA.
[Haynes, Kyle J.] Univ Virginia, Boyce, VA 22620 USA.
[Dwyer, Greg] Univ Chicago, Dept Ecol & Evolut, Chicago, IL 60637 USA.
RP Dwyer, G (reprint author), Univ Chicago, Dept Ecol & Evolut, 940 E 57Th St, Chicago, IL 60637 USA.
EM gdwyer@uchicago.edu
RI Haynes, Kyle/C-1374-2012; Dwyer, Greg/L-1134-2015; Elderd,
Bret/C-5231-2016
OI Haynes, Kyle/0000-0002-3283-6633; Dwyer, Greg/0000-0002-7387-2075;
Elderd, Bret/0000-0001-5853-1136
FU National Institutes of Health [R01GM096655]
FX J. M. Bergelson, A. F. Hunter, and W. F. Morris made many helpful
comments on the manuscript. Discussions between G. Dwyer and K. Haynes
began as part of the Forest Insects Working Group at the National
Institute for Mathematical and Biological Synthesis. Our work was
supported by National Institutes of Health Grant R01GM096655.
NR 49
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U1 6
U2 131
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 SEP 10
PY 2013
VL 110
IS 37
BP 14978
EP 14983
DI 10.1073/pnas.1300759110
PG 6
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 214IF
UT WOS:000324125100044
PM 23966566
ER
PT J
AU Bewley, WW
Kim, CS
Canedy, CL
Merritt, CD
Vurgaftman, I
Abell, J
Meyer, JR
Kim, M
AF Bewley, W. W.
Kim, C. S.
Canedy, C. L.
Merritt, C. D.
Vurgaftman, I.
Abell, J.
Meyer, J. R.
Kim, M.
TI High-power, high-brightness continuous-wave interband cascade lasers
with tapered ridges
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID DIFFRACTION-LIMITED POWER; MU-M; GAIN REGIONS; AMPLIFIERS
AB We report tapered-ridge mid-infrared (lambda = 3.75 mu m) interband cascade lasers emitting up to 403 mW of continuous wave output power at T = 25 degrees C, with beam quality characterized by M-2 = 2.3. One index-guided tapered structure consisted of a single 4-mm-long section with ridge width varying linearly from 5 mu m to 63 mu m. Another device that combined a narrow ridge of uniform width with a tapered section produced slightly lower maximum output power and brightness. (C) 2013 AIP Publishing LLC.
C1 [Bewley, W. W.; Kim, C. S.; Canedy, C. L.; Merritt, C. D.; Vurgaftman, I.; Abell, J.; Meyer, J. R.] Naval Res Lab, Code 5613, Washington, DC 20375 USA.
[Kim, M.] Sotera Def Solut Inc, Annapolis Jct, MD 20701 USA.
RP Vurgaftman, I (reprint author), Naval Res Lab, Code 5613, Washington, DC 20375 USA.
EM vurgaftman@nrl.navy.mil
NR 22
TC 12
Z9 13
U1 5
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 SEP 9
PY 2013
VL 103
IS 11
AR 111111
DI 10.1063/1.4821263
PG 4
WC Physics, Applied
SC Physics
GA 219GT
UT WOS:000324495000011
ER
PT J
AU Butler, JJ
Bowcock, AS
Sueoka, SR
Montgomery, SR
Flom, SR
Friebele, EJ
Wright, BM
Peele, JR
Pong, RGS
Shirk, JS
Hu, J
Menyuk, CR
Taunay, TF
AF Butler, James J.
Bowcock, Alec S.
Sueoka, Stacey R.
Montgomery, Steven R.
Flom, Steven R.
Friebele, E. Joseph
Wright, Barbara M.
Peele, John R.
Pong, Richard G. S.
Shirk, James S.
Hu, Jonathan
Menyuk, Curtis R.
Taunay, T. F.
TI Optical properties of solid-core photonic crystal fibers filled with
nonlinear absorbers
SO OPTICS EXPRESS
LA English
DT Article
ID LIMITING PROPERTIES; ABSORPTION; STATE; ARRAY
AB A theoretical and experimental investigation of the transmission of solid-core photonic crystal fibers (PCFs) filled with nonlinear absorbers shows a sharp change in the threshold for optical limiting and in leakage loss as the refractive index of the material in the holes approaches that of the glass matrix. Theoretical calculations of the mode profiles and leakage loss of the PCF are in agreement with experimental results and indicate that the change in limiting response is due to the interaction of the evanescent field of the guided mode with the nonlinear absorbers in the holes. (C) 2013 Optical Society of America
C1 [Butler, James J.; Bowcock, Alec S.] Univ Pacific, Dept Phys, Forest Grove, OR 97116 USA.
[Montgomery, Steven R.] US Naval Acad, Dept Phys, Annapolis, MD 21402 USA.
[Flom, Steven R.; Friebele, E. Joseph; Wright, Barbara M.] Naval Res Lab, Opt Sci Div, Washington, DC 20375 USA.
[Peele, John R.; Pong, Richard G. S.; Shirk, James S.] NRL, Sotera Def Solut, Washington, DC 20375 USA.
[Hu, Jonathan] Baylor Univ, Dept Elect & Comp Engn, Waco, TX 76798 USA.
[Menyuk, Curtis R.] Univ Maryland Baltimore Cty, Dept Comp Sci & Elect Engn, Baltimore, MD 21250 USA.
RP Butler, JJ (reprint author), Univ Pacific, Dept Phys, Forest Grove, OR 97116 USA.
EM jjbutler@pacificu.edu
RI Hu, Jonathan/A-8618-2011
FU National Science Foundation [DMR-0521496]; M.J. Murdock Charitable
Trust, Pacific University; Office of Naval Research; Naval Research
Laboratory; the United States Naval Academy
FX We thank the National Science Foundation (Award No. DMR-0521496), M.J.
Murdock Charitable Trust, Pacific University, the Office of Naval
Research, the Naval Research Laboratory, and the United States Naval
Academy for financial support.
NR 18
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U1 2
U2 31
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 SEP 9
PY 2013
VL 21
IS 18
BP 20707
EP 20712
DI 10.1364/OE.21.020707
PG 6
WC Optics
SC Optics
GA 224FC
UT WOS:000324867100036
PM 24103943
ER
PT J
AU Gillis, DB
Bowles, JH
Moses, WJ
AF Gillis, David B.
Bowles, Jeffrey H.
Moses, Wesley J.
TI Improving the retrieval of water inherent optical properties in noisy
hyperspectral data through statistical modeling
SO OPTICS EXPRESS
LA English
DT Article
ID ESTIMATING CHLOROPHYLL-A; CASE-II WATERS; ATMOSPHERIC CORRECTION; OCEAN
COLOR; ALGORITHM; CHINA; LAKE
AB The use of the Mahalanobis distance in a lookup table approach to retrieval of in-water Inherent Optical Properties (IOPs) led to significant improvements in the accuracy of the retrieved IOPs, as high as 50% in some cases, with an average improvement of 20% over a wide range of case II waters. Previous studies have shown that inherent noise in hyperspectral data can cause significant errors in the retrieved IOPs. For LUT-based retrievals that rely on spectrum matching, the particular metric used for spectral comparisons has a significant effect on the accuracy of the results, especially in the presence of noise in the data. In this study, we have compared the Euclidean distance and the Mahalanobis distance as metrics for spectral comparison. In addition to providing justification for the preference of the Mahalanobis Distance over the Euclidean Distance, we have also included a statistical description of noisy hyperspectral data. (C) 2013 Optical Society of America
C1 [Gillis, David B.; Bowles, Jeffrey H.; Moses, Wesley J.] Naval Res Lab, Washington, DC USA.
RP Gillis, DB (reprint author), Naval Res Lab, Washington, DC USA.
EM David.Gillis@nrl.navy.mil
OI Moses, Wesley/0000-0003-3551-6093
NR 19
TC 2
Z9 2
U1 0
U2 11
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 SEP 9
PY 2013
VL 21
IS 18
BP 21306
EP 21316
DI 10.1364/OE.21.021306
PG 11
WC Optics
SC Optics
GA 224FC
UT WOS:000324867100094
PM 24104005
ER
PT J
AU Lalani, T
Chu, VH
Park, LP
Cecchi, E
Corey, GR
Durante-Mangoni, E
Fowler, VG
Gordon, D
Grossi, P
Hannan, M
Hoen, B
Munoz, P
Rizk, H
Kanj, SS
Selton-Suty, C
Sexton, DJ
Spelman, D
Ravasio, V
Tripodi, MF
Wang, A
AF Lalani, Tahaniyat
Chu, Vivian H.
Park, Lawrence P.
Cecchi, Enrico
Corey, G. Ralph
Durante-Mangoni, Emanuele
Fowler, Vance G., Jr.
Gordon, David
Grossi, Paolo
Hannan, Margaret
Hoen, Bruno
Munoz, Patricia
Rizk, Hussien
Kanj, Souha S.
Selton-Suty, Christine
Sexton, Daniel J.
Spelman, Denis
Ravasio, Veronica
Tripodi, Marie Francoise
Wang, Andrew
CA Int Collaboration Endocarditis-Pro
TI In-Hospital and 1-Year Mortality in Patients Undergoing Early Surgery
for Prosthetic Valve Endocarditis
SO JAMA INTERNAL MEDICINE
LA English
DT Article
ID SIDED INFECTIVE ENDOCARDITIS; PROPENSITY SCORE ANALYSIS;
PROGNOSTIC-FACTORS; RISK-FACTORS; INTERNATIONAL COLLABORATION; 6-MONTH
MORTALITY; CLINICAL PROFILE; MANAGEMENT; THERAPY; ASSOCIATION
AB IMPORTANCE There are limited prospective, controlled data evaluating survival in patients receiving early surgery vs medical therapy for prosthetic valve endocarditis (PVE).
OBJECTIVE To determine the in-hospital and 1-year mortality in patients with PVE who undergo valve replacement during index hospitalization compared with patients who receive medical therapy alone, after controlling for survival and treatment selection bias.
DESIGN, SETTING, AND PARTICIPANTS Participants were enrolled between June 2000 and December 2006 in the International Collaboration on Endocarditis-Prospective Cohort Study (ICE-PCS), a prospective, multinational, observational cohort of patients with infective endocarditis. Patients hospitalized with definite right-or left-sided PVE were included in the analysis. We evaluated the effect of treatment assignment on mortality, after adjusting for biases using a Cox proportional hazards model that included inverse probability of treatment weighting and surgery as a time-dependent covariate. The cohort was stratified by probability (propensity) for surgery, and outcomes were compared between the treatment groups within each stratum.
INTERVENTIONS Valve replacement during index hospitalization (early surgery) vs medical therapy.
MAIN OUTCOMES AND MEASURES In-hospital and 1-year mortality.
RESULTS Of the 1025 patients with PVE, 490 patients (47.8%) underwent early surgery and 535 individuals (52.2%) received medical therapy alone. Compared with medical therapy, early surgery was associated with lower in-hospital mortality in the unadjusted analysis and after controlling for treatment selection bias (in-hospital mortality: hazard ratio [HR], 0.44 [95% CI, 0.38-0.52] and lower 1-year mortality: HR, 0.57 [95% CI, 0.49-0.67]). The lower mortality associated with surgery did not persist after adjustment for survivor bias (in-hospital mortality: HR, 0.90 [95% CI, 0.76-1.07] and 1-year mortality: HR, 1.04 [95% CI, 0.89-1.23]). Subgroup analysis indicated a lower in-hospital mortality with early surgery in the highest surgical propensity quintile (21.2% vs 37.5%; P =.03). At 1-year follow-up, the reduced mortality with surgery was observed in the fourth (24.8% vs 42.9%; P =.007) and fifth (27.9% vs 50.0%; P =.007) quintiles of surgical propensity.
CONCLUSIONS AND RELEVANCE Prosthetic valve endocarditis remains associated with a high 1-year mortality rate. After adjustment for differences in clinical characteristics and survival bias, early valve replacement was not associated with lower mortality compared with medical therapy in the overall cohort. Further studies are needed to define the effect and timing of surgery in patients with PVE who have indications for surgery.
C1 [Lalani, Tahaniyat] Infect Dis Clin Res Program, Bethesda, MD USA.
[Chu, Vivian H.; Park, Lawrence P.; Corey, G. Ralph; Fowler, Vance G., Jr.] Duke Univ, Med Ctr, Duke Clin Res Inst, Durham, NC USA.
[Cecchi, Enrico] Maria Vittoria Hosp, Turin, Italy.
[Durante-Mangoni, Emanuele; Tripodi, Marie Francoise] Univ Naples Federico II, Naples, Italy.
[Gordon, David] Flinders Med Ctr, Bedford Pk, SA, Australia.
[Grossi, Paolo] Osped Circolo Varese, Varese, Italy.
[Hannan, Margaret] Mater Misericordiae Univ Hosp, Dublin, Ireland.
[Hoen, Bruno] Univ Med Ctr Besancon, Besancon, France.
[Munoz, Patricia] Hosp Gen Univ Gregorio Maranon, Madrid, Spain.
[Rizk, Hussien] Cairo Univ, Sch Med, Cairo, Egypt.
[Kanj, Souha S.] Amer Univ Beirut, Med Ctr, Beirut, Lebanon.
[Selton-Suty, Christine] CHU Nancy Brabois, Nancy, France.
[Sexton, Daniel J.; Wang, Andrew] Duke Univ, Med Ctr, Dept Med, Durham, NC 27710 USA.
[Spelman, Denis] Alfred Hosp, Melbourne, Vic, Australia.
[Ravasio, Veronica] Osped Riuniti Bergamo, Bergamo, Italy.
RP Lalani, T (reprint author), Naval Med Ctr Portsmouth, Bldg 3,1st Floor,620 John Paul Jones Cir, Portsmouth, VA 23708 USA.
EM tlalani@idcrp.org
RI ICIQ, ICIQ/A-8443-2014; De Rosa, Francesco Giuseppe/J-3049-2013;
Toniolo, Antonio/B-4103-2015; Strabelli, Tania/B-1857-2015; Bouza,
Emilio/D-8661-2014;
OI Falces, Carlos/0000-0002-3483-3786; Selton-Suty,
Christine/0000-0003-4129-5784; Gordon, David/0000-0003-3276-9685;
Toniolo, Antonio/0000-0003-3008-2126; Strabelli,
Tania/0000-0003-1955-1008; Bouza, Emilio/0000-0001-6967-9267; Athan,
Eugene/0000-0001-9838-6471; Munoz Garcia, Patricia
Carmen/0000-0001-5706-5583
FU American Heart Association Mid-Atlantic Affiliate [12GRNT12030071]
FX Dr Andrew Wang is supported in part by American Heart Association
Mid-Atlantic Affiliate Grant in Aid 12GRNT12030071 for this study.
NR 43
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DI 10.1001/jamainternmed.2013.8203
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PT J
AU Baturina, OA
Gould, BD
Korovina, A
Northrup, PA
Swider-Lyons, KE
AF Baturina, Olga A.
Gould, Benjamin D.
Korovina, Anna
Northrup, Paul A.
Swider-Lyons, Karen E.
TI Using sulfur K-edge XANES to better understand adsorption of SO2 species
on PEMFC catalysts
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[Korovina, Anna] George Washington Univ, Dept Chem, Washington, DC 20037 USA.
[Northrup, Paul A.] SUNY Stony Brook, Dept Environm Sci, Stony Brook, NY 11794 USA.
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Foley, MP
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Trulove, PC
Long, HC
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Brown, Eva K.
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[Brown, Eva K.; Sweely, Kurt D.; Foley, Matthew P.; Nevin, Laura M.; Brenner, Aimee E.; Trulove, Paul C.] US Naval Acad, Dept Chem, Annapolis, MD 21402 USA.
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[Ferrante, Robert F.] US Naval Acad, Dept Chem, Annapolis, MD 21402 USA.
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PT J
AU Swaminathan, VV
Hu, H
Farhani, MRZ
Mensing, G
Yeom, JH
Shannon, MA
Zhu, LK
AF Swaminathan, Vikhram V.
Hu, Huan
Farhani, Mahmoud R. Z.
Mensing, Glennys
Yeom, Junghoon
Shannon, Mark A.
Zhu, Likun
TI Hierarchical and re-entrant micro/nanostructures for superhydrophobic
surfaces with extremely low hysteresis
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
CT 246th National Meeting of the American-Chemical-Society (ACS)
CY SEP 08-12, 2013
CL Indianapolis, IN
SP Amer Chem Soc
C1 [Swaminathan, Vikhram V.; Hu, Huan; Mensing, Glennys; Shannon, Mark A.] Univ Illinois, Urbana, IL 61801 USA.
[Farhani, Mahmoud R. Z.; Zhu, Likun] Indiana Univ Purdue Univ, Indianapolis, IN 46202 USA.
[Yeom, Junghoon] US Naval Res Lab, Washington, DC 20375 USA.
EM vikhram2@illinois.edu
RI Hu, Huan/C-5494-2009
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 SEP 8
PY 2013
VL 246
MA 193-COLL
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA 288NJ
UT WOS:000329618402220
ER
PT J
AU Zhu, L
Mackey, M
Carr, JM
Zhou, Z
Tseng, JK
Schuele, DE
Eric, B
Wolak, MA
Shirk, JS
AF Zhu, Lei
Mackey, Matthew
Carr, Joel M.
Zhou, Zheng
Tseng, Jung-Kai
Schuele, Donald E.
Eric, Baer
Wolak, Mason A.
Shirk, James S.
TI Multilayer polymer films as high energy density and low loss dielectrics
SO ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Meeting Abstract
CT 246th National Meeting of the American-Chemical-Society (ACS)
CY SEP 08-12, 2013
CL Indianapolis, IN
SP Amer Chem Soc
C1 [Zhu, Lei; Mackey, Matthew; Carr, Joel M.; Zhou, Zheng; Tseng, Jung-Kai; Schuele, Donald E.; Eric, Baer] Case Western Reserve Univ, Dept Macromol Sci & Engn, Cleveland, OH 44106 USA.
[Wolak, Mason A.; Shirk, James S.] US Naval Res Lab, Washington, DC 20375 USA.
EM lxz121@case.edu
NR 0
TC 0
Z9 0
U1 0
U2 8
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 SEP 8
PY 2013
VL 246
MA 305-POLY
PG 1
WC Chemistry, Multidisciplinary
SC Chemistry
GA 288NJ
UT WOS:000329618407062
ER
PT J
AU Mier-y-Teran-Romero, L
Schwartz, IB
Cummings, DAT
AF Mier-y-Teran-Romero, Luis
Schwartz, Ira B.
Cummings, Derek A. T.
TI Breaking the symmetry: Immune enhancement increases persistence of
dengue viruses in the presence of asymmetric transmission rates
SO JOURNAL OF THEORETICAL BIOLOGY
LA English
DT Article
DE Dengue; Antibody dependent enhancement; Serotypical asymmetry; Dengue
vaccine
ID ANTIBODY-DEPENDENT ENHANCEMENT; SEROTYPE-SPECIFIC DIFFERENCES;
HEMORRHAGIC-FEVER; BANGKOK; INFECTIONS; DYNAMICS; THAILAND; DISEASE;
PATTERN; VACCINE
AB The dengue viruses exist as four antigenically distinct serotypes. These four serotypes co-circulate and interact with each other through multiple immune-mediated mechanisms. Though the majority of previous efforts to understand the transmission dynamics of dengue have assumed identical characteristics for these four serotypes, empirical data suggests that they differ from one another in important ways. Here, we examine dynamics and persistence in models that do not assume symmetry between the dengue viruses. We find that for serotype transmission rates that are only slightly asymmetric, increased transmissibility of secondary infections through immune enhancement increases the persistence of all dengue viruses in opposition to findings in symmetric models. We identify an optimal magnitude of immune enhancement that maximizes the probability of persistence of all four serorypes. In contrast to other pathogen systems where heterogeneity between serotypes in transmissibility facilitates competitive exclusion (Bremmermann and Thieme, 1989), here we find that in the presence of Antibody Dependent Enhancement (ADE) heterogeneity can increase the persistence of multiple serotypes of dengue. (C) 2013 Elsevier Ltd. All rights reserved.
C1 [Mier-y-Teran-Romero, Luis; Cummings, Derek A. T.] Johns Hopkins Bloomberg Sch Publ Hlth, Baltimore, MD 21205 USA.
[Mier-y-Teran-Romero, Luis; Schwartz, Ira B.] US Naval Res Lab, Nonlinear Dynam Syst Sect, Div Plasma Phys, Washington, DC 20375 USA.
RP Mier-y-Teran-Romero, L (reprint author), US Naval Res Lab, Nonlinear Dynam Syst Sect, Div Plasma Phys, Code 6792,4555 Overlook Ave,SW, Washington, DC 20375 USA.
EM lmier-y@jhsph.edu; ira.schwartz@nrl.navy.mil; dcummings@jhsph.edu
FU Office of Naval Research; National Institute of General Medical Sciences
[R01GM090204]; National Institute of General Medical Sciences Models of
Infectious Disease Agent Study (MIDAS) [1U54GM088491-0109]
FX The authors gratefully acknowledge the Office of Naval Research for
their support. The authors are supported by Award Number R01GM090204
from the National Institute of General Medical Sciences. DATC was also
supported by the National Institute of General Medical Sciences Models
of Infectious Disease Agent Study (MIDAS) grant 1U54GM088491-0109. DATC
holds a Career Award at the Scientific Interface. 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 41
TC 6
Z9 6
U1 1
U2 20
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 SEP 7
PY 2013
VL 332
BP 203
EP 210
DI 10.1016/j.jtbi.2013.04.036
PG 8
WC Biology; Mathematical & Computational Biology
SC Life Sciences & Biomedicine - Other Topics; Mathematical & Computational
Biology
GA 185RS
UT WOS:000321988500021
PM 23665358
ER
PT J
AU McCracken, JM
AF McCracken, James M.
TI Quantum channel negativity as a measure of system-bath coupling and
correlation
SO PHYSICAL REVIEW A
LA English
DT Article
ID REDUCED DYNAMICS NEED; ENTANGLEMENT; MAPS
AB Complete positivity is a ubiquitous assumption in the study of quantum systems interacting with the environment, but the lack of complete positivity of a quantum evolution (called the "negativity") can be used as a measure of the system-bath coupling and correlation. The negativity can be computed from the Choi representation of a channel, is always defined and bounded, and contains some information about environmentally induced noise in a quantum system.
C1 US Naval Res Lab, Washington, DC 20375 USA.
RP McCracken, JM (reprint author), US Naval Res Lab, Code 5540, Washington, DC 20375 USA.
EM james.mccracken@nrl.navy.mil
NR 22
TC 1
Z9 1
U1 0
U2 3
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 SEP 6
PY 2013
VL 88
IS 3
AR 032103
DI 10.1103/PhysRevA.88.032103
PG 10
WC Optics; Physics, Atomic, Molecular & Chemical
SC Optics; Physics
GA 213GT
UT WOS:000324044500001
ER
PT J
AU Markman, V
Stojanov, G
Indurkhya, B
Kido, T
Takadama, K
Konidaris, G
Eaton, E
Matsumura, N
Fruchter, R
Sofge, D
Lawless, WF
Madani, O
Sukthankar, R
AF Markman, Vita
Stojanov, Georgi
Indurkhya, Bipin
Kido, Takashi
Takadama, Keiki
Konidaris, George
Eaton, Eric
Matsumura, Naohiro
Fruchter, Renate
Sofge, Don
Lawless, William F.
Madani, Omid
Sukthankar, Rahul
TI Reports of the 2013 AAAI Spring Symposium Series
SO AI MAGAZINE
LA English
DT Article
AB The Association for the Advancement of Artificial Intelligence was pleased to present the AAAI 2013 Spring Symposium Series, held Monday through Wednesday, March 25-27, 2013. The titles of the eight symposia were Analyzing Microtext; Creativity and (Early) Cognitive Development; Data-Driven Wellness: From Self-Tracking to Behavior Change; Designing Intelligent Robots: Reintegrating AI II; Lifelong Machine Learning; Shikakeology: Designing Triggers for Behavior Change; Trust and Autonomous Systems; and Weakly Supervised Learning from Multimedia. This report contains summaries of the symposia, written, in most cases, by the cochairs of the symposium.
C1 [Markman, Vita] Disney Interact Studios, Glendale, CA 91601 USA.
[Stojanov, Georgi] Amer Univ Paris, Paris, France.
[Indurkhya, Bipin] Int Inst Informat Technol, Hyderabad, Andhra Pradesh, India.
[Kido, Takashi] Rikengenesis Japan, Yokohama, Kanagawa, Japan.
[Takadama, Keiki] Univ Electrocommun, Chofu, Tokyo 182, Japan.
[Konidaris, George] MIT CSAIL, Cambridge, MA USA.
[Matsumura, Naohiro] Osaka Univ, Grad Sch Econ, Suita, Osaka 565, Japan.
[Fruchter, Renate] Stanford Univ, Project Based Learning Lab, Stanford, CA 94305 USA.
[Sofge, Don] Naval Res Lab Washington, Washington, DC USA.
[Lawless, William F.] Paine Coll Augusta, Dept Math & Psychol, Augusta, GA USA.
[Madani, Omid; Sukthankar, Rahul] Google, Mountain View, CA USA.
RP Markman, V (reprint author), Disney Interact Studios, Glendale, CA 91601 USA.
NR 0
TC 1
Z9 1
U1 0
U2 4
PU AMER ASSOC ARTIFICIAL INTELL
PI MENLO PK
PA 445 BURGESS DRIVE, MENLO PK, CA 94025-3496 USA
SN 0738-4602
J9 AI MAG
JI AI Mag.
PD FAL
PY 2013
VL 34
IS 3
BP 93
EP 98
PG 6
WC Computer Science, Artificial Intelligence
SC Computer Science
GA AI5FX
UT WOS:000336891900008
ER
PT J
AU Yang, JH
Cowden, BT
Kennedy, Q
Schramm, H
Sullivan, J
AF Yang, Ji Hyun
Cowden, Bradley T.
Kennedy, Quinn
Schramm, Harrison
Sullivan, Joseph
TI Pilot Perception and Confidence of Location During a Simulated
Helicopter Navigation Task
SO AVIATION SPACE AND ENVIRONMENTAL MEDICINE
LA English
DT Article
DE navigation; perception; confidence; bias; terrain association
AB Introduction: This paper aims to provide insights into human perception, navigation performance, and confidence in helicopter overland navigation. Helicopter overland navigation is a challenging mission area because it is a complex cognitive task, and failing to recognize when the aircraft is off-course can lead to operational failures and mishaps. Methods: A human-in-the-loop experiment to investigate pilot perception during simulated overland navigation by analyzing actual navigation trajectory, pilots' perceived location, and corresponding confidence levels was designed. There were 15 military officers with prior overland navigation experience who completed 4 simulated low-level navigation routes, 2 of which entailed auto-navigation. This route was paused roughly every 30 s for the subject to mark their perceived location on the map and their confidence level using a customized program. Results: Analysis shows that there is no correlation between perceived and actual location of the aircraft, nor between confidence level and actual location. There is, however, some evidence that there is a correlation (p = -0.60 similar to -0.65) between perceived location and intended route of flight, suggesting that there is a bias toward believing one is on the intended flight route. Discussion: If aviation personnel can proactively identify the circumstances in which usual misperceptions occur in navigation, they may reduce mission failure and accident rate. Fleet squadrons and instructional commands can benefit from this study to improve operations that require low-level flight while also improving crew resource management.
C1 [Yang, Ji Hyun] Kookmin Univ, Dept Automot Engn, Seoul 136702, South Korea.
[Cowden, Bradley T.; Kennedy, Quinn; Schramm, Harrison; Sullivan, Joseph] Naval Postgrad Sch, Monterey, CA USA.
RP Yang, JH (reprint author), Kookmin Univ, Dept Automot Engn, 77 Jeongneung Ro, Seoul 136702, South Korea.
EM yangjh@kookmin.ac.kr
FU Naval Modeling Simulation Office (NMSO); Office of Naval Research (ONR)
FX This work was funded by the Naval Modeling Simulation Office (NMSO) and
Office of Naval Research (ONR). Prof. Ron Fricker reviewed the
statistical analysis in this paper and we are very thankful. We are
grateful to Mr. Marek Kapolka for developing the confidence app and Mr.
Jesse Huston for helping us in calibrating the experimental device.
NR 13
TC 1
Z9 1
U1 0
U2 3
PU AEROSPACE MEDICAL ASSOC
PI ALEXANDRIA
PA 320 S HENRY ST, ALEXANDRIA, VA 22314-3579 USA
SN 0095-6562
EI 1943-4448
J9 AVIAT SPACE ENVIR MD
JI Aviat. Space Environ. Med.
PD SEP
PY 2013
VL 84
IS 9
BP 952
EP 960
DI 10.3357/ASEM.3505.2013
PG 9
WC Public, Environmental & Occupational Health; Medicine, General &
Internal; Sport Sciences
SC Public, Environmental & Occupational Health; General & Internal
Medicine; Sport Sciences
GA AD1LV
UT WOS:000332996400007
PM 24024307
ER
PT J
AU Cambrea, LR
Davis, MC
Groshens, TJ
Meylemans, HA
AF Cambrea, Lee R.
Davis, Matthew C.
Groshens, Thomas J.
Meylemans, Heather A.
TI A Soluble, Halogen-Free Oxalate from Methyl Salicylate for
Chemiluminescence Demonstrations
SO JOURNAL OF CHEMICAL EDUCATION
LA English
DT Article
DE High School/Introductory Chemistry; First-Year Undergraduate/General;
Organic Chemistry; Demonstrations; Public Understanding/Outreach;
Esters; Phenols; Green Chemistry
AB A new oxalate ester made from methyl salicylate (oil of wintergreen) was found to be an excellent replacement for the typical halogenated oxalate ester (bis(2,4,6-trichlorophenyl) oxalate) used in peroxyoxalate chemiluminescence demonstrations. This new compound is easily prepared and has good solubility in organic solvents, such as ethyl acetate, which is an environmentally friendly solvent to use in the demonstration.
C1 [Cambrea, Lee R.; Davis, Matthew C.; Groshens, Thomas J.; Meylemans, Heather A.] Naval Air Warfare Ctr, Chem & Mat Div, China Lake, CA 93555 USA.
RP Davis, MC (reprint author), Naval Air Warfare Ctr, Chem & Mat Div, China Lake, CA 93555 USA.
EM matthew.davis@navy.mil
NR 2
TC 1
Z9 1
U1 1
U2 11
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0021-9584
EI 1938-1328
J9 J CHEM EDUC
JI J. Chem. Educ.
PD SEP
PY 2013
VL 90
IS 9
BP 1253
EP 1254
DI 10.1021/ed300565u
PG 2
WC Chemistry, Multidisciplinary; Education, Scientific Disciplines
SC Chemistry; Education & Educational Research
GA 295DO
UT WOS:000330097000033
ER
PT J
AU Rogers, DF
AF Rogers, David F.
TI Wind-Tunnel Investigation of a General-Aviation Differential Pressure
Angle-of-Attack Probe
SO JOURNAL OF AIRCRAFT
LA English
DT Article
C1 [Rogers, David F.] US Naval Acad, Dept Aerosp Engn, Annapolis, MD 21402 USA.
RP Rogers, DF (reprint author), Rogers Aerosp Engn & Consulting, Annapolis, MD 21401 USA.
EM dfr@nar-associates.com
NR 4
TC 0
Z9 0
U1 1
U2 3
PU AMER INST AERONAUTICS ASTRONAUTICS
PI RESTON
PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091-4344 USA
SN 0021-8669
EI 1533-3868
J9 J AIRCRAFT
JI J. Aircr.
PD SEP-OCT
PY 2013
VL 50
IS 5
BP 1668
EP 1672
DI 10.2514/1.C032174
PG 5
WC Engineering, Aerospace
SC Engineering
GA AA8VK
UT WOS:000331372900031
ER
PT J
AU Lake, MG
Krook, LS
Cruz, SV
AF Lake, Marcy G.
Krook, Linda S.
Cruz, Samya V.
TI Pituitary Adenomas: An Overview
SO AMERICAN FAMILY PHYSICIAN
LA English
DT Article
ID CLINICAL-PRACTICE GUIDELINE; CUSHINGS-SYNDROME; STEREOTACTIC
RADIOSURGERY; DIAGNOSIS; HYPERPROLACTINEMIA; CABERGOLINE; PREVALENCE;
MANAGEMENT; MULTICENTER; SPECIFICITY
AB Prolactinomas and nonfunctioning adenomas are the most common types of pituitary adenomas. Patients with pituitary adenomas may present initially with symptoms of endocrine dysfunction such as infertility, decreased libido, and galactorrhea, or with neurologic symptoms such as headache and visual changes. The diagnosis may also 'be made following imaging done for an unrelated issue in an asymptomatic patient; this is termed a pituitary incidentaloma. Oversecretion of hormones from a dysfunctional pituitary gland may result in classic clinical syndromes, the most common of which are hyperprolactinemia (from oversecretion of prolactin), acromegaly (from excess growth hormone), and Cushing disease (from overproduction of adrenocorticotropic hormone). In the diagnostic approach to a suspected pituitary adenoma, it is important to evaluate complete pituitary function, because hypopituitarism is common. Therapy for pituitary adenomas depends on the specific type of tumor, and should be managed with a team approach to include endocrinology and neurosurgery when indicated. Dopamine agonists are the primary treatment for prolactinomas. Small nonfunctioning adenomas and prolactinomas in asymptomatic patients do not require immediate intervention and can be observed. (C) Copyright 2013 American Academy of Family Physicians.
C1 [Lake, Marcy G.] US Naval Hosp, Sigonella, Italy.
[Krook, Linda S.] Naval Hosp, Bremerton, WA USA.
[Cruz, Samya V.] US Naval Hosp, Rota, Spain.
RP Lake, MG (reprint author), US Naval Hosp, Sigonella, Italy.
EM marcy.lake22@gmail.com
NR 34
TC 7
Z9 8
U1 2
U2 11
PU AMER ACAD FAMILY PHYSICIANS
PI KANSAS CITY
PA 8880 WARD PARKWAY, KANSAS CITY, MO 64114-2797 USA
SN 0002-838X
EI 1532-0650
J9 AM FAM PHYSICIAN
JI Am. Fam. Physician
PD SEP 1
PY 2013
VL 88
IS 5
BP 319
EP 327
PG 9
WC Primary Health Care; Medicine, General & Internal
SC General & Internal Medicine
GA 297QZ
UT WOS:000330271300008
PM 24010395
ER
PT J
AU Shaffer, J
AF Shaffer, Jason
TI Pioneer Performances: Staging the Frontier
SO MODERN DRAMA
LA English
DT Book Review
C1 [Shaffer, Jason] US Naval Acad, Annapolis, MD 21402 USA.
RP Shaffer, J (reprint author), US Naval Acad, Annapolis, MD 21402 USA.
NR 1
TC 0
Z9 0
U1 0
U2 0
PU UNIV TORONTO PRESS INC
PI TORONTO
PA JOURNALS DIVISION, 5201 DUFFERIN ST, DOWNSVIEW, TORONTO, ON M3H 5T8,
CANADA
SN 0026-7694
EI 1712-5286
J9 MOD DRAMA
JI Mod. Drama
PD FAL
PY 2013
VL 56
IS 3
BP 413
EP 415
PG 3
WC Theater
SC Theater
GA 297AW
UT WOS:000330228500013
ER
PT J
AU Bradburne, CE
Delehanty, JB
Gemmill, KB
Mei, BC
Mattoussi, H
Susumu, K
Blanco-Canosa, JB
Dawson, PE
Medintz, IL
AF Bradburne, Christopher E.
Delehanty, James B.
Gemmill, Kelly Boeneman
Mei, Bing C.
Mattoussi, Hedi
Susumu, Kimihiro
Blanco-Canosa, Juan B.
Dawson, Philip E.
Medintz, Igor L.
TI Cytotoxicity of Quantum Dots Used for In Vitro Cellular Labeling: Role
of QD Surface Ligand, Delivery Modality, Cell Type, and Direct
Comparison to Organic Fluorophores
SO BIOCONJUGATE CHEMISTRY
LA English
DT Article
ID RESONANCE ENERGY-TRANSFER; INTRACELLULAR DELIVERY; ACRIDINE-ORANGE;
MULTIFUNCTIONAL LIGANDS; POLYETHYLENE-GLYCOL; GOLD NANOPARTICLES; LIVING
CELLS; FLUORESCENCE; CDSE; PROTEIN
AB Interest in taking advantage of the unique spectral properties of semiconductor quantum dots (QDs) has driven their widespread use in biological applications such as in vitro cellular labeling/imaging and, sensing. Despite their demonstrated utility, concerns over the potential toxic effects of QD core materials on cellular proliferation and homeostasis have persisted, leaving in question the suitability of QDs as alternatives for more traditional fluorescent materials (e.g., organic dyes, fluorescent proteins) for in vitro cellular applications. Surprisingly, direct comparative studies examining the cytotoxic potential of QDs versus these more traditional cellular labeling fluorophores remain limited. Here, using CdSe/ZnS (core/shell) QDs as a prototypical assay material, we present a comprehensive study in which we characterize the influence of QD dose (concentration and incubation time), QD surface capping ligand, and delivery modality (peptide or cationic amphiphile transfection reagent) on cellular viability in three human cell lines representing various morphological lineages (epithelial, endothelial, monocytic). We further compare the effects of QD cellular labeling on cellular proliferation relative to those associated with a panel of traditionally employed organic cell labeling fluorophores that span a broad spectral range. Our results demonstrate the important role played by QD dose, capping ligand structure, and delivery agent in modulating cellular toxicity. Further, the results show that at the concentrations and time regimes required for robust QD-based cellular labeling, the impact of our in-house synthesized QD materials on cellular proliferation is comparable to that of six commercial cell labeling fluorophores. Cumulatively, our results demonstrate that the proper tuning of QD dose, surface ligand, and delivery modality can provide robust in vitro cell labeling reagents that exhibit minimal impact on cellular viability.
C1 [Bradburne, Christopher E.; Delehanty, James B.; Gemmill, Kelly Boeneman; Medintz, Igor L.] US Naval Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 USA.
[Mei, Bing C.; Mattoussi, Hedi; Susumu, Kimihiro] US Naval Res Lab, Div Opt Sci, Washington, DC 20375 USA.
[Susumu, Kimihiro] Sotera Def Solut, Annapolis Jct, MD 20701 USA.
[Blanco-Canosa, Juan B.; Dawson, Philip E.] Scripps Res Inst, Dept Cell Biol, La Jolla, CA 92037 USA.
[Blanco-Canosa, Juan B.; Dawson, Philip E.] Scripps Res Inst, Dept Chem, La Jolla, CA 92037 USA.
RP Delehanty, JB (reprint author), US Naval Res Lab, Ctr Bio Mol Sci & Engn, Code 6900, Washington, DC 20375 USA.
EM james.delehanty@nrl.navy.mil; igor.medintz@nrl.navy.mil
FU National Research Council (NRC) Associateship
FX The authors acknowledge the NRL NSI and Base Funding Program, DARPA, and
DTRA JSTO MIPR # B112582M. CB was supported by a National Research
Council (NRC) Associateship.
NR 95
TC 40
Z9 40
U1 5
U2 67
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1043-1802
J9 BIOCONJUGATE CHEM
JI Bioconjugate Chem.
PD SEP
PY 2013
VL 24
IS 9
BP 1570
EP 1583
DI 10.1021/bc4001917
PG 14
WC Biochemical Research Methods; Biochemistry & Molecular Biology;
Chemistry, Multidisciplinary; Chemistry, Organic
SC Biochemistry & Molecular Biology; Chemistry
GA 295DW
UT WOS:000330097800016
PM 23879393
ER
PT J
AU Scandrett, CL
Vieira, AM
AF Scandrett, C. L.
Vieira, A. M.
TI Fluid-structure effects of cloaking a submerged spherical shell
SO JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
LA English
DT Article
ID SOMMERFELD-WATSON TRANSFORMATION; ACOUSTIC SCATTERING; LAMB WAVES;
CIRCUMFERENTIAL WAVES; ELASTIC SPHERE; TONE BURSTS; FREQUENCY; WATER;
BACKSCATTERING; ENHANCEMENT
AB Backscattering from a cloaked submerged spherical shell is analyzed in the low, mid, and high frequency regimes. Complex poles of the scattered pressure amplitudes using Cauchy residue theory are evaluated in an effort to explain dominant features of the scattered pressure and how they are affected by the introduction of a cloak. The methodology used is similar to that performed by Sammelmann and Hackman [J. Acoust. Soc. Am. 85, 114-124 (1989); J. Acoust. Soc. Am. 89, 2096-2103 (1991); J. Acoust. Soc. Am. 90, 2705-2717 (1991)] in a series of papers written on scattering from an uncloaked spherical shell. In general, it is found that cloaking has the effect of diminishing the amplitude and shifting tonal backscatter responses. Extreme changes of normal and tangential fluid phase velocities at the fluid-solid interface when cloaking is employed leads to elimination of the "mid-frequency enhancement" near the coincidence frequency for even modestly effective cloaks, while reduction of the "high-frequency enhancement" resulting from the "thickness quasi-resonance" near the cut-off frequency of the symmetric (S-B(2)) mode requires more effective cloaking, but can be practically eliminated by employing a cloak that creates tangential acoustic velocities in excess of the S-B(2) mode phase speed near cutoff.
C1 [Scandrett, C. L.] Naval Postgrad Sch, Dept Appl Math, Monterey, CA 93943 USA.
[Vieira, A. M.] Portuguese Naval Sch, Alfeite Naval Base, P-2805101 Almada, Portugal.
RP Scandrett, CL (reprint author), Naval Postgrad Sch, Dept Appl Math, 833 Dyer Rd, Monterey, CA 93943 USA.
NR 30
TC 1
Z9 1
U1 2
U2 19
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 SEP
PY 2013
VL 134
IS 3
BP 1908
EP 1919
DI 10.1121/1.4816492
PG 12
WC Acoustics; Audiology & Speech-Language Pathology
SC Acoustics; Audiology & Speech-Language Pathology
GA 294LG
UT WOS:000330047000021
PM 23967924
ER
PT J
AU Huang, CF
Yang, TC
Liu, JY
Schindall, J
AF Huang, Chen-Fen
Yang, T. C.
Liu, Jin-Yuan
Schindall, Jeff
TI Acoustic mapping of ocean currents using networked distributed sensors
SO JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
LA English
DT Article
ID SEISMIC TOMOGRAPHY; MODEL; STRAIT
AB Distributed underwater sensors are expected to provide oceanographic monitoring over large areas. As fabrication technology advances, low cost sensors will be available for many uses. The sensors communicate to each other and are networked using acoustic communications. This paper first studies the performance of such systems for current measurements using tomographic inversion approaches to compare with that of a conventional system which distributes the sensors on the periphery of the area of interest. It then proposes two simple signal processing methods for ocean current mapping (using distributed networked sensors) aimed at real-time in-buoy processing. Tomographic inversion generally requires solving a challenging high dimensional inverse problem, involving substantial computations. Given distributed sensors, currents can be constructed locally based on data from neighboring sensors. It is shown using simulated data that similar results are obtained using distributed processing as using conventional tomographic approaches. The advantage for distributed systems is that by increasing the number of nodes, one gains a much more improved performance. Furthermore, distributed systems use much less energy than a conventional tomographic system for the same area coverage. Experimental data from an acoustic communication and networking experiment are used to demonstrate the feasibility of acoustic current mapping. (C) 2013 Acoustical Society of America.
C1 [Huang, Chen-Fen] Natl Taiwan Univ, Inst Oceanog, Taipei 10617, Taiwan.
[Yang, T. C.; Liu, Jin-Yuan] Natl Sun Yat Sen Univ, Inst Appl Marine Phys & Undersea Technol, Kaohsiung 80424, Taiwan.
[Schindall, Jeff] Naval Res Lab, Washington, DC 20375 USA.
[Liu, Jin-Yuan] Natl Taitung Univ, Taitung 95092, Taiwan.
RP Yang, TC (reprint author), Natl Sun Yat Sen Univ, Inst Appl Marine Phys & Undersea Technol, Kaohsiung 80424, Taiwan.
EM tsihyang@gmail.com
RI Huang, Chen-Fen/K-3174-2012
OI Huang, Chen-Fen/0000-0001-8736-9545
FU Office of Naval Research, USA; National Science Council of Taiwan,
R.O.C. [101-2611-M-002-007, 101-2218-E-110-001]
FX This work is supported by the Office of Naval Research, USA, and
National Science Council of Taiwan, R.O.C. through Contract Nos.
101-2611-M-002-007 and 101-2218-E-110-001. The authors would like to
thank the reviewers for many useful comments that helped to improve the
manuscript. We are furthermore indebted to Professor Ling-Yun Chiao,
National Taiwan University for fruitful discussions.
NR 17
TC 3
Z9 3
U1 0
U2 9
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 SEP
PY 2013
VL 134
IS 3
BP 2090
EP 2105
DI 10.1121/1.4817835
PG 16
WC Acoustics; Audiology & Speech-Language Pathology
SC Acoustics; Audiology & Speech-Language Pathology
GA 294LG
UT WOS:000330047000037
PM 23967940
ER
PT J
AU Stine, R
Lee, WK
Whitener, KE
Robinson, JT
Sheehan, PE
AF Stine, Rory
Lee, Woo-Kyung
Whitener, Keith E., Jr.
Robinson, Jeremy T.
Sheehan, Paul E.
TI Chemical Stability of Graphene Fluoride Produced by Exposure to XeF2
SO NANO LETTERS
LA English
DT Article
DE Graphene; graphene fluoride; fluorographene; stability; xenon difluoride
ID FLUORINATED GRAPHENE; LARGE-AREA; REDUCTION; FILMS; FUNCTIONALIZATION;
FLUOROGRAPHENE; IRRADIATION; DEPOSITION; NANOTUBES; GRAPHITE
AB Fluorination can alter the electronic properties of graphene and activate sites for subsequent chemistry. Here, we show that graphene fluorination depends on several variables, including XeF2 exposure and the choice of substrate. After fluorination, fluorine content declines by 50-80% over several days before stabilizing. While highly fluorinated samples remain insulating, mildly fluorinated samples regain some conductivity over this period. Finally, this loss does not reduce reactivity with alkylamines, suggesting that only nonvolatile fluorine participates in these reactions.
C1 [Stine, Rory] Nova Res, Alexandria, VA 22308 USA.
[Lee, Woo-Kyung; Whitener, Keith E., Jr.; Sheehan, Paul E.] US Naval Res Lab, Div Chem, Washington, DC 20375 USA.
[Robinson, Jeremy T.] US Naval Res Lab, Elect Sci & Technol Div, Washington, DC 20375 USA.
RP Sheehan, PE (reprint author), US Naval Res Lab, Div Chem, Washington, DC 20375 USA.
EM paul.sheehan@nrl.navy.mil
RI Stine, Rory/C-6709-2013; Robinson, Jeremy/F-2748-2010; Sheehan,
Paul/B-4793-2010
OI Sheehan, Paul/0000-0003-2668-4124
FU Naval Research Laboratory Base Program; Defense Threat Reduction Agency
under MIPR [B112609M]; National Research Council
FX This work was supported by the Naval Research Laboratory Base Program
and the Defense Threat Reduction Agency under MIPR number B112609M.
K.E.W. appreciates the support of the National Research Council.
NR 30
TC 48
Z9 48
U1 9
U2 94
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1530-6984
EI 1530-6992
J9 NANO LETT
JI Nano Lett.
PD SEP
PY 2013
VL 13
IS 9
BP 4311
EP 4316
DI 10.1021/nl4021039
PG 6
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied;
Physics, Condensed Matter
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA 296BA
UT WOS:000330158900055
PM 23981005
ER
PT J
AU Khaokham, CB
Selent, M
Loustalot, FV
Zarecki, SM
Harrington, D
Hoke, E
Faix, DJ
Ortiguerra, R
Alvarez, B
Almond, N
McMullen, K
Cadwell, B
Uyeki, TM
Blair, PJ
Waterman, SH
AF Khaokham, Christina B.
Selent, Monica
Loustalot, Fleetwood V.
Zarecki, Shauna Mettee
Harrington, Douglas
Hoke, Eileen
Faix, Dennis J.
Ortiguerra, Ryan
Alvarez, Bryan
Almond, Nathaniel
McMullen, Kellie
Cadwell, Betsy
Uyeki, Timothy M.
Blair, Patrick J.
Waterman, Stephen H.
TI Seroepidemiologic investigation of an outbreak of pandemic influenza A
H1N1 2009 aboard a US Navy Vessel-San Diego, 2009
SO INFLUENZA AND OTHER RESPIRATORY VIRUSES
LA English
DT Article
DE Disease outbreaks; epidemiology; H1N1 subtype; influenza A virus;
military personnel
ID VIRUS; SHIP; CHEMOPROPHYLAXIS; INFECTION; CHILDREN; ADULTS
AB Background During summer 2009, a US Navy ship experienced an influenza-like illness outbreak with 126 laboratory-confirmed cases of pandemic influenza A (H1N1) 2009 virus among the approximately 2000-person crew.
Methods During September 24-October 9, 2009, a retrospective seroepidemiologic investigation was conducted to characterize the outbreak. We administered questionnaires, reviewed medical records, and collected post-outbreak sera from systematically sampled crewmembers. We used real-time reverse transcription-PCR or microneutralization assays to detect evidence of H1N1 virus infection.
Results Retrospective serologic data demonstrated that the overall H1N1 virus infection attack rate was 32%. Weighted H1N1 virus attack rates were higher among marines (37%), junior-ranking personnel (34%), and persons aged 19-24 years (36%). In multivariable analysis, a higher risk of illness was found for women versus men (odds ratio [OR]=2.2; 95% confidence interval [CI]: 1.1-4.4), marines versus navy personnel (OR=1.7; 95% CI, 1.0-2.9), and those aged 19-24 versus >= 35 years (OR=3.9; 95% CI, 1.2-12.8). Fifty-three percent of infected persons did not recall respiratory illness symptoms. Among infected persons, only 35% met criteria for acute respiratory illness and 11% for influenza-like illness.
Conclusions Approximately half of H1N1 infections were asymptomatic, and thus, the attack rate was higher than estimated by clinical illness alone. Enhanced infection control measures including pre-embarkation illness screening, improved self-reporting of illness, isolation of ill and quarantine of exposed contacts, and prompt antiviral chemoprophylaxis and treatment might be useful in controlling shipboard influenza outbreaks.
C1 [Khaokham, Christina B.; Selent, Monica; Loustalot, Fleetwood V.; Zarecki, Shauna Mettee] Ctr Dis Control & Prevent, Epidem Intelligence Serv, Atlanta, GA USA.
[Harrington, Douglas; Alvarez, Bryan; Almond, Nathaniel; McMullen, Kellie] Navy Environm & Prevent Med Unit Five, San Diego, CA USA.
[Hoke, Eileen] Navy Med Corps, San Diego, CA USA.
[Faix, Dennis J.; Ortiguerra, Ryan; Blair, Patrick J.] Naval Hlth Res Ctr, San Diego, CA USA.
[Cadwell, Betsy; Uyeki, Timothy M.; Waterman, Stephen H.] Ctr Dis Control & Prevent, Atlanta, GA USA.
RP Khaokham, CB (reprint author), Ctr Dis Control & Prevent, Hlth Human Serv Agcy, 3851 Rosecrans St MS-P572, San Diego, CA 92110 USA.
EM igc9@cdc.gov
FU US Department of Defense's Armed Forces Health Surveillance Center,
Division of the Global Emerging Infections Surveillance and Response
System
FX This work was funded in part by a grant from the US Department of
Defense's Armed Forces Health Surveillance Center, Division of the
Global Emerging Infections Surveillance and Response System.
NR 22
TC 9
Z9 9
U1 0
U2 2
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1750-2640
EI 1750-2659
J9 INFLUENZA OTHER RESP
JI Influenza Other Respir. Viruses
PD SEP
PY 2013
VL 7
IS 5
BP 791
EP 798
DI 10.1111/irv.12100
PG 8
WC Infectious Diseases; Virology
SC Infectious Diseases; Virology
GA 268IE
UT WOS:000328162800007
PM 23496798
ER
PT J
AU Moody, G
Singh, R
Li, H
Akimov, IA
Bayer, M
Reuter, D
Wieck, AD
Bracker, AS
Gammon, D
Cundiff, ST
AF Moody, Galan
Singh, Rohan
Li, Hebin
Akimov, Ilya A.
Bayer, Manfred
Reuter, Dirk
Wieck, Andreas D.
Bracker, Allan S.
Gammon, Daniel
Cundiff, Steven T.
TI Biexcitons in semiconductor quantum dot ensembles
SO PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
LA English
DT Article
DE biexciton; four-wave mixing; quantum dots; quantum well
ID FOURIER-TRANSFORM SPECTROSCOPY; EXCITONS; WELLS
AB The effects of confinement on biexciton renormalization in self-assembled InAs and interfacial GaAs quantum dot (QD) ensembles are studied using two-dimensional Fourier-transform spectroscopy. We find that in thermally annealed InAs QDs, changes in the biexciton transition energy are strongly correlated with those of the exciton and that the biexciton binding energy is similar for all QDs in the ensemble. These results are in contrast to those from GaAs QDs formed from interfacial fluctuations of a narrow quantum well (QW). In both the GaAs QW and QDs, correlation is reduced and the biexciton binding exhibits a strong dependence on localization. Comparison with simulations reveals how confinement and Coulomb interactions modify biexciton renormalization. (C) 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
C1 [Moody, Galan; Singh, Rohan; Li, Hebin; Cundiff, Steven T.] Univ Colorado, JILA, Boulder, CO 80309 USA.
[Moody, Galan; Singh, Rohan; Li, Hebin; Cundiff, Steven T.] Natl Inst Stand & Technol, Boulder, CO 80309 USA.
[Moody, Galan; Singh, Rohan; Cundiff, Steven T.] Univ Colorado, Dept Phys, Boulder, CO 80309 USA.
[Akimov, Ilya A.; Bayer, Manfred] Tech Univ Dortmund, D-44221 Dortmund, Germany.
[Akimov, Ilya A.] Russian Acad Sci, AF Ioffe Phys Tech Inst, St Petersburg 194021, Russia.
[Reuter, Dirk; Wieck, Andreas D.] Ruhr Univ Bochum, Lehrstuhl Angew Festkoerperphys, D-44780 Bochum, Germany.
[Bracker, Allan S.; Gammon, Daniel] Naval Res Lab, Washington, DC 20375 USA.
RP Cundiff, ST (reprint author), Univ Colorado, JILA, Boulder, CO 80309 USA.
EM cundiff@jila.colorado.edu
RI Li, Hebin/A-8711-2009; Cundiff, Steven/B-4974-2009; Moody,
Galan/J-5811-2014; Wieck, Andreas Dirk/C-5129-2009
OI Cundiff, Steven/0000-0002-7119-5197; Moody, Galan/0000-0001-7263-1483;
Wieck, Andreas Dirk/0000-0001-9776-2922
FU Chemical Sciences, Geosciences, and Energy Biosciences Division, Office
of Basic Energy Science, Office of Science, US Department of Energy;
NSF; Deutsche Forschungsgemeinschaft
FX This work was financially supported by the Chemical Sciences,
Geosciences, and Energy Biosciences Division, Office of Basic Energy
Science, Office of Science, US Department of Energy, the NSF and the
Deutsche Forschungsgemeinschaft.
NR 39
TC 1
Z9 1
U1 0
U2 21
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA BOSCHSTRASSE 12, D-69469 WEINHEIM, GERMANY
SN 0370-1972
EI 1521-3951
J9 PHYS STATUS SOLIDI B
JI Phys. Status Solidi B-Basic Solid State Phys.
PD SEP
PY 2013
VL 250
IS 9
BP 1753
EP 1759
DI 10.1002/pssb.201200725
PG 7
WC Physics, Condensed Matter
SC Physics
GA 263PD
UT WOS:000327819600002
ER
PT J
AU Miceli, RJ
Hysell, DL
Munk, J
McCarrick, M
Huba, JD
AF Miceli, R. J.
Hysell, D. L.
Munk, J.
McCarrick, M.
Huba, J. D.
TI Reexamining X-mode suppression and fine structure in artificial E region
field-aligned plasma density irregularities
SO RADIO SCIENCE
LA English
DT Article
DE Active experiments; Plasma waves and instabilities; Ionospheric
irregularities; SAMI2
ID IONOSPHERIC MODIFICATION; LATITUDE IONOSPHERE; RADIO-WAVES; INSTABILITY;
EXCITATION; TURBULENCE; FREQUENCY; RESONANCE; SAMI2
AB Artificial field-aligned plasma density irregularities (FAIs) were generated in the E region of the ionosphere above the High Frequency Active Auroral Research Program facility during campaigns in May and August of 2012 and observed using a 30MHz coherent scatter radar imager in Homer, Alaska. The purpose of this ionospheric modification experiment was to measure the threshold pump power required to excite thermal parametric instabilities by O-mode heating and to investigate the suppression of the FAIs by simultaneous X-mode heating. We find that the threshold pump power for irregularity excitation was consistent with theoretical predictions and increased by approximately a factor of 2 when X-mode heating was present. A modified version of the Another Model of the Ionosphere (SAMI2) ionospheric model was used to simulate the threshold experiments and suggested that the increase was entirely due to enhanced D region absorption associated with X-mode heating. Additionally, a remarkable degree of fine structure possibly caused by natural gradient drift instability in the heater-modified volume was observed in experiments performed during geomagnetically active conditions.
C1 [Miceli, R. J.; Hysell, D. L.] Cornell Univ, Ithaca, NY 14853 USA.
[Munk, J.] Univ Alaska Anchorage, Anchorage, AK USA.
[McCarrick, M.] Marsh Creek LLC, Gakona, AK USA.
[Huba, J. D.] Naval Res Lab, Washington, DC USA.
RP Miceli, RJ (reprint author), Cornell Univ, 3154 Snee Hall, Ithaca, NY 14853 USA.
EM rjm73@cornell.edu
FU DARPA [HR0011-09-C-0099]; High Frequency Active Auroral Research Program
(HAARP); Office of Naval Research; Air Force Research Laboratory
[N00014-07-1-1079]
FX This project was supported by DARPA through contract HR0011-09-C-0099.
Additional support came from the High Frequency Active Auroral Research
Program (HAARP) and from the Office of Naval Research and the Air Force
Research Laboratory under grant N00014-07-1-1079 to Cornell.
NR 33
TC 0
Z9 0
U1 1
U2 4
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 0048-6604
EI 1944-799X
J9 RADIO SCI
JI Radio Sci.
PD SEP
PY 2013
VL 48
IS 5
BP 482
EP 490
DI 10.1002/rds.20054
PG 9
WC Astronomy & Astrophysics; Geochemistry & Geophysics; Meteorology &
Atmospheric Sciences; Remote Sensing; Telecommunications
SC Astronomy & Astrophysics; Geochemistry & Geophysics; Meteorology &
Atmospheric Sciences; Remote Sensing; Telecommunications
GA 252RW
UT WOS:000327028500002
ER
PT J
AU Helmboldt, JF
Clarke, TE
Craig, J
Dowell, JD
Ellingson, SW
Hartman, JM
Hicks, BC
Kassim, NE
Taylor, GB
Wolfe, CN
AF Helmboldt, J. F.
Clarke, T. E.
Craig, J.
Dowell, J. D.
Ellingson, S. W.
Hartman, J. M.
Hicks, B. C.
Kassim, N. E.
Taylor, G. B.
Wolfe, C. N.
TI Passive all-sky imaging radar in the HF regime with WWV and the first
station of the Long Wavelength Array
SO RADIO SCIENCE
LA English
DT Article
DE HF radar; ionospheric tilts; sporadic-E; HF terrain mapping
ID BISTATIC RADAR; SYSTEMS
AB We present a new passive, bistatic high-frequency (HF) radar system consisting of the transmitters for the radio station WWV and the dipole antenna array that comprises the first station of the Long Wavelength Array (LWA) or LWA1. We demonstrate that these two existing facilities, which are operated for separate purposes, can be used together as a unique HF radar imager, capable of monitoring the entire visible sky. In this paper, we describe in detail the techniques used to develop all-sky radar capability at 10, 15, and 20 MHz. We show that this radar system can be a useful tool for probing ionospheric structure and its effect on over-the-horizon (OTH) geolocation. The LWA1+WWV radar system appears to be especially adept at detecting and characterizing structures associated with sporadic-E. In addition, we also demonstrate how this system may be used for long-distance, OTH mapping of terrain/ocean HF reflectivity. Finally, we discuss the potential improvements in the utility of these applications as more LWA stations are added.
C1 [Helmboldt, J. F.; Clarke, T. E.; Hicks, B. C.; Kassim, N. E.] US Naval Res Lab, Washington, DC 20375 USA.
[Craig, J.; Dowell, J. D.; Taylor, G. B.] Univ New Mexico, Dept Phys & Astron, Albuquerque, NM 87131 USA.
[Ellingson, S. W.; Wolfe, C. N.] Virginia Tech, Bradley Dept Elect & Comp Engn, Blacksburg, VA USA.
[Hartman, J. M.] CALTECH, Jet Prop Lab, Pasadena, CA USA.
[Taylor, G. B.] Natl Radio Astron Observ, Socorro, NM 87801 USA.
RP Helmboldt, JF (reprint author), US Naval Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM joe.helmboldt@nrl.navy.mil
RI Helmboldt, Joseph/C-8105-2012
FU NASA Postdoctoral Program at the Jet Propulsion Laboratory; NASA; Naval
Research Laboratory; Office of Naval Research [N00014-07-C=0147];
National Science Foundation of the University Radio Observatory program
[AST-1139974]; National Aeronautics and Space Administration
FX This research was supported by an appointment to the NASA Postdoctoral
Program at the Jet Propulsion Laboratory, administered by Oak Ridge
Universities through a contract with NASA. The authors would like to
thank F. Schinzel and T. Pedersen for useful comments and suggestions.
Basic research in astronomy at the Naval Research Laboratory is
supported by 6.1 base funding. Construction of the LWA has been
supported by the Office of Naval Research under contract
N00014-07-C=0147. Support for operations and continuing development of
the LWA1 is provided by the National Science Foundation under grant
AST-1139974 of the University Radio Observatory program. Part of this
research was carried out at the Jet Propulsion Laboratory, California
Institute of Technology, under a contract with the National Aeronautics
and Space Administration.
NR 29
TC 3
Z9 3
U1 0
U2 7
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 0048-6604
EI 1944-799X
J9 RADIO SCI
JI Radio Sci.
PD SEP
PY 2013
VL 48
IS 5
BP 491
EP 512
DI 10.1002/rds.20056
PG 22
WC Astronomy & Astrophysics; Geochemistry & Geophysics; Meteorology &
Atmospheric Sciences; Remote Sensing; Telecommunications
SC Astronomy & Astrophysics; Geochemistry & Geophysics; Meteorology &
Atmospheric Sciences; Remote Sensing; Telecommunications
GA 252RW
UT WOS:000327028500003
ER
PT J
AU Hysell, DL
Miceli, RJ
Huba, JD
AF Hysell, D. L.
Miceli, R. J.
Huba, J. D.
TI Implications of a heuristic model of auroral Farley Buneman waves and
heating
SO RADIO SCIENCE
LA English
DT Article
DE Aurora; ionosphere; radar
ID E-REGION IRREGULARITIES; POLAR E-REGION; EQUATORIAL ELECTROJET
IRREGULARITIES; LATITUDE E-REGION; UNSTABLE PLASMA; INSTABILITY; FIELD;
RADAR; IONOSPHERE; SATURATION
AB The global implications, particularly with respect to altitude dependence, of the heuristic model of Farley Buneman waves put forward initially by Milikh and Dimant (2002) are studied. This model prescribes a relationship between the background convection electric field that excites the waves and the transverse electric fields of the waves that grow in response. It also prescribes the magnetic aspect angle of the waves, which is related to their ability to heat the auroral E region. The prescription is based on the condition of marginal stability. We reformulate the basic model, which is local, and embed it in the SAMI2 ionospheric model, which includes wave and Joule heating, heat transport, cooling, temperature-dependent collisions, and related chemistry. Within the limits of its underlying assumptions, the combined model can be used to predict the phase-speeds and magnetic-aspect widths of Farley Buneman waves in the auroral zone and the heating they can cause, all as functions of altitude. Model predictions are compared with experimental results, and the efficacy of the model assessed. This modeling exercise highlights the importance of the thickness of the layer in which Farley Buneman waves exist, the strong variations in wave characteristics across the layer, and the consequences this has for coherent scatter radar measurements of the phenomenon.
C1 [Hysell, D. L.; Miceli, R. J.] Cornell Univ, Ithaca, NY 14853 USA.
[Huba, J. D.] Naval Res Lab, Washington, DC USA.
RP Hysell, DL (reprint author), Cornell Univ, Ithaca, NY 14853 USA.
EM dlh37@cornell.edu
FU NSF [AGS-1042057]; NRL Base Funds
FX This work was supported by NSF award AGS-1042057 to Cornell University.
The research of JDH was supported by NRL Base Funds.
NR 48
TC 4
Z9 4
U1 0
U2 5
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 0048-6604
EI 1944-799X
J9 RADIO SCI
JI Radio Sci.
PD SEP
PY 2013
VL 48
IS 5
BP 527
EP 534
DI 10.1002/rds.20061
PG 8
WC Astronomy & Astrophysics; Geochemistry & Geophysics; Meteorology &
Atmospheric Sciences; Remote Sensing; Telecommunications
SC Astronomy & Astrophysics; Geochemistry & Geophysics; Meteorology &
Atmospheric Sciences; Remote Sensing; Telecommunications
GA 252RW
UT WOS:000327028500006
ER
PT J
AU Fu, H
Scales, WA
Bernhardt, PA
Samimi, A
Mahmoudian, A
Briczinski, SJ
McCarrick, MJ
AF Fu, H.
Scales, W. A.
Bernhardt, P. A.
Samimi, A.
Mahmoudian, A.
Briczinski, S. J.
McCarrick, M. J.
TI Stimulated Brillouin scatter and stimulated ion Bernstein scatter during
electron gyroharmonic heating experiments
SO RADIO SCIENCE
LA English
DT Article
DE ionospheric heating; stimulated Brillioun scatter; stimulated ion
Bernstein scatter
ID IONOSPHERIC REFLECTION REGION; STANDING WAVE PATTERN; HF RADIO-WAVES;
PARAMETRIC-INSTABILITIES; RADIATION; EMISSIONS; SPECTRUM; PLASMAS
AB Results of secondary radiation, Stimulated Electromagnetic Emission (SEE), produced during ionospheric modification experiments using ground-based high-power radio waves are reported. These results obtained at the High Frequency Active Auroral Research Program (HAARP) facility specifically considered the generation of Magnetized Stimulated Brillouin Scatter (MSBS) and Stimulated Ion Bernstein Scatter (SIBS) lines in the SEE spectrum when the transmitter frequency is near harmonics of the electron gyrofrequency. The heater antenna beam angle effect was investigated on MSBS in detail and shows a new spectral line postulated to be generated near the upper hybrid resonance region due to ion acoustic wave interaction. Frequency sweeping experiments near the electron gyroharmonics show for the first time the transition from MSBS to SIBS lines as the heater pump frequency approaches the gyroharmonic. Significantly far from the gyroharmonic, MSBS lines dominate, while close to the gyroharmonic, SIBS lines strengthen while MSBS lines weaken. New possibilities for diagnostic information are discussed in light of these new observations.
C1 [Fu, H.] Fudan Univ, Key Lab Informat Sci Electromagnet Waves, Shanghai 200433, Peoples R China.
[Fu, H.] Fudan Univ, Sch Informat Sci & Technol, Shanghai 200433, Peoples R China.
[Scales, W. A.; Samimi, A.; Mahmoudian, A.] Virginia Polytech Inst & State Univ, Bradley Dept Elect & Comp Engn, Blacksburg, VA 24061 USA.
[Bernhardt, P. A.; Briczinski, S. J.] Naval Res Lab, Div Plasma Phys, Washington, DC USA.
[McCarrick, M. J.] Marsh Creek LLC, Gakona, AK USA.
RP Fu, H (reprint author), Fudan Univ, Key Lab Informat Sci Electromagnet Waves, Shanghai 200433, Peoples R China.
EM haiyangf@vt.edu
RI Haiyang, Fu/P-8007-2015
FU National Science Foundation
FX The authors will like to thank for the HAARP campaign and all the staff
at HAARP facility. The authors also want to appreciate experimental
support from Edward Kennedy, William Bristow, and Brenton Watkins. This
work was supported by the National Science Foundation.
NR 21
TC 11
Z9 11
U1 0
U2 1
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 0048-6604
EI 1944-799X
J9 RADIO SCI
JI Radio Sci.
PD SEP
PY 2013
VL 48
IS 5
BP 607
EP 616
DI 10.1002/2013RS005262
PG 10
WC Astronomy & Astrophysics; Geochemistry & Geophysics; Meteorology &
Atmospheric Sciences; Remote Sensing; Telecommunications
SC Astronomy & Astrophysics; Geochemistry & Geophysics; Meteorology &
Atmospheric Sciences; Remote Sensing; Telecommunications
GA 252RW
UT WOS:000327028500014
ER
PT J
AU Hong, XD
Wang, SP
Holt, TR
Martin, PJ
O'Neill, L
AF Hong, Xiaodong
Wang, Shouping
Holt, Teddy R.
Martin, Paul J.
O'Neill, Larry
TI Modulation of the sea-surface temperature in the Southeast Pacific by
the atmospheric low-level coastal jet
SO JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
LA English
DT Article
DE Ekman pumping; Ekman transport; surface heat flux; two-way coupled
air-ocean model; low-level coastal jet; satellite observation
ID EKMAN TRANSPORT; BOUNDARY-LAYER; WEST-COAST; VOCALS-REX; EL-NINO; MODEL;
VARIABILITY; OCEAN; MESOSCALE; DYNAMICS
AB The atmospheric low-level coastal jet (LLCJ) in the Southeast Pacific (SEP) region is characterized as either a strong-forcing jet (colder and drier air) or weak-forcing jet (warm and moist) based on the location of the Southeast Pacific high-pressure system (SEPH). The sea-surface temperature (SST) changes corresponding to a particularly strong-forcing jet (29-30 October) and weak-forcing jet (22-23 November) are investigated in this study using the two-way air-ocean coupled model COAMPS (R) and satellite observation data. Results indicate that the coupled simulation reduces the overall absolute bias 50% for the surface wind speed, 70% for the cloud liquid water path, and 15% for SST as compared to the uncoupled simulation. The coupled simulation reduces excessive SST cooling, especially during the strong-forcing jet period along the coastal area where offshore transport of upwelled cold water is too strong from the uncoupled simulation. The coupled simulation also reduces the excessive warming from the uncoupled simulation by providing better cloud coverage. The prominent mechanisms in cooling SST along the coast are the same for both the strong-forcing and weak-forcing jets, namely vigorous upwelling and horizontal advection. However, the mechanisms along the jet path differ from along the coast, with air-sea heat exchange the most important process, resulting in cooling SST during the strong-forcing jet period but warming SST during the weak-forcing jet period. The advances and differences of the present study as compared with previous studies are discussed in detail in the paper.
C1 [Hong, Xiaodong; Wang, Shouping; Holt, Teddy R.] Naval Res Lab, Monterey, CA 93943 USA.
[Martin, Paul J.] Naval Res Lab, Stennis Space Ctr, Stennis Space Ctr, MS USA.
[O'Neill, Larry] Oregon State Univ, Coll Earth & Atmospher Sci, Corvallis, OR 97331 USA.
RP Hong, XD (reprint author), Naval Res Lab, 7 Grace Hopper Ave, Monterey, CA 93943 USA.
EM hong@nrlmry.navy.mil
FU NRL Base Program [PE 0602435N]
FX We would like to thank the reviewers for their constructive and many
helpful suggestions for improving this paper. This research is supported
by the NRL Base Program, PE 0602435N. Computations were performed on the
IBM P4+ at the Naval Oceanographic Office (NAVO) Major Shared Resource
Center (MSRC) at Stennis Space Center, Mississippi.
NR 44
TC 0
Z9 0
U1 0
U2 10
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 SEP
PY 2013
VL 118
IS 9
BP 3979
EP 3998
DI 10.1002/jgrc.20289
PG 20
WC Oceanography
SC Oceanography
GA 242HQ
UT WOS:000326230200001
ER
PT J
AU Palmsten, ML
Holland, KT
Plant, NG
AF Palmsten, Margaret L.
Holland, K. Todd
Plant, Nathaniel G.
TI Velocity estimation using a Bayesian network in a critical-habitat reach
of the Kootenai River, Idaho
SO WATER RESOURCES RESEARCH
LA English
DT Article
DE Bayesian network; depth-averaged velocity; probabilistic predictions
ID WHITE STURGEON; SPAWNING HABITAT; MODEL; DEPTH; FLOW
AB Numerous numerical modeling studies have been completed in support of an extensive recovery program for the endangered white sturgeon (Acipenser transmontanus) on the Kootenai River near Bonner's Ferry, ID. A technical hurdle in the interpretation of these model results is the transfer of information from the specialist to nonspecialist such that practical decisions utilizing the numerical simulations can be made. To address this, we designed and trained a Bayesian network to provide probabilistic prediction of depth-averaged velocity. Prediction of this critical parameter governing suitable spawning habitat was obtained by exploiting the dynamic relationships between variables derived from model simulations with associated parameter uncertainties. Postdesign assessment indicates that the most influential environmental variables in order of importance are river discharge, depth, and width, and water surface slope. We demonstrate that the probabilistic network not only reproduces the training data with accuracy similar to the accuracy of a numerical model (root-mean-squared error of 0.10 m/s), but that it makes reliable predictions on the same river at times and locations other than where the network was trained (root mean squared error of 0.09 m/s). Additionally, the network showed similar skill (root mean square error of 0.04 m/s) when predicting velocity on the Apalachicola River, FL, a river of similar shape and size to the Kootenai River where a related sturgeon population is also threatened.
C1 [Palmsten, Margaret L.; Holland, K. Todd] Naval Res Lab, Stennis Space Ctr, MS 39529 USA.
[Plant, Nathaniel G.] US Geol Survey, Coastal & Marine Sci Ctr, St Petersburg, FL USA.
RP Palmsten, ML (reprint author), Naval Res Lab, Code 7430, Stennis Space Ctr, MS 39529 USA.
EM margaret.palmsten.ctr@nrlssc.navy.mil
RI Holland, K. Todd/A-7673-2011;
OI Holland, K. Todd/0000-0002-4601-6097; Plant,
Nathaniel/0000-0002-5703-5672
FU Office of Naval Research
FX This work was supported by the Office of Naval Research. Special thanks
to Anke Becker for performing numerical simulations used in the training
set and Jamie MacMahan and his team at Naval Postgraduate School for
supporting the Kootenai River field effort.
NR 30
TC 2
Z9 2
U1 0
U2 5
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 0043-1397
EI 1944-7973
J9 WATER RESOUR RES
JI Water Resour. Res.
PD SEP
PY 2013
VL 49
IS 9
BP 5865
EP 5879
DI 10.1002/wrcr.20361
PG 15
WC Environmental Sciences; Limnology; Water Resources
SC Environmental Sciences & Ecology; Marine & Freshwater Biology; Water
Resources
GA 238ZO
UT WOS:000325991100053
ER
PT J
AU Fleming, B
AF Fleming, Bruce
TI What You Can Learn at a Funeral: Albany, NY
SO ANTIOCH REVIEW
LA English
DT Article
C1 [Fleming, Bruce] US Naval Acad, Annapolis, MD 21402 USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU ANTIOCH REVIEW
PI YELLOW SPRINGS
PA BOX 148, YELLOW SPRINGS, OH 45387 USA
SN 0003-5769
EI 2326-9707
J9 ANTIOCH REV
JI Antioch Rev.
PD FAL
PY 2013
VL 71
IS 4
BP 726
EP 744
PG 19
WC Literary Reviews
SC Literature
GA 240YE
UT WOS:000326132800014
ER
PT J
AU Guyette, AC
AF Guyette, Andrew C.
TI Theory and Design of Intrinsically Switched Multiplexers With Optimum
Phase Linearity
SO IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
LA English
DT Article
DE Filters; microstrip filters; resonator filters; tunable circuits and
devices
ID CHANNELIZING FILTERS
AB This paper presents the theory, design, and implementation of a new class of component called an intrinsically switched multiplexer, which is comprised of a number of contiguous bandpass filter channels that can be independently switched on and off with very low architecture-related insertion loss and flat group delay across adjacent switched-on channels. Coupled-resonator filter topologies are identified that allow for optimum performance of contiguous bandpass channel filters through the crossover frequencies, and a new intrinsically switched coupling section that provides for low on-state insertion loss and high broadband off-state isolation is presented. In addition, it is shown that the channel filters can be combined in a scalable fashion with the use of lossy manifolds. A three-channel eight-state intrinsically switched multiplexer microstrip prototype was designed, built, and tested and gives 6.7 dB of passband insertion loss and 0.15-ns p-p group delay ripple over 72% of the passband.
C1 Naval Res Lab, Washington, DC 20375 USA.
RP Guyette, AC (reprint author), Naval Res Lab, Code 6851, Washington, DC 20375 USA.
EM acguyette@gmail.com
FU Defense Advanced Research Projects Agency (DARPA); Office of Naval
Research (ONR)
FX This work was supported by the Defense Advanced Research Projects Agency
(DARPA) under a grant and the Office of Naval Research (ONR) under a
grant.
NR 15
TC 9
Z9 9
U1 1
U2 5
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0018-9480
EI 1557-9670
J9 IEEE T MICROW THEORY
JI IEEE Trans. Microw. Theory Tech.
PD SEP
PY 2013
VL 61
IS 9
BP 3254
EP 3264
DI 10.1109/TMTT.2013.2274963
PG 11
WC Engineering, Electrical & Electronic
SC Engineering
GA 234PI
UT WOS:000325655900011
ER
PT J
AU Higgins, JC
Arnold, MJ
AF Higgins, James C.
Arnold, Michael J.
TI When to worry about incidental renal and adrenal masses
SO JOURNAL OF FAMILY PRACTICE
LA English
DT Article
ID PRIMARY ALDOSTERONISM; PERCUTANEOUS BIOPSY; UNENHANCED CT; MANAGEMENT;
DIAGNOSIS; ADENOMAS; FEATURES; TUMORS; CYSTS; SIZE
C1 [Higgins, James C.] Naval Hosp, Dept Family Med, Jacksonville, FL USA.
[Arnold, Michael J.] Naval Hosp, Branch Hlth Clin Capodichino, Naples, Italy.
RP Higgins, JC (reprint author), Naval Hosp Jacksonville, Dept Family Med, 2080 Child St,Box 1000, Jacksonville, FL 32214 USA.
EM James.Higgins@med.navy.mil
NR 35
TC 0
Z9 0
U1 0
U2 7
PU DOWDEN HEALTH MEDIA
PI MONTVALE
PA 110 SUMMIT AVE, MONTVALE, NJ 07645-1712 USA
SN 0094-3509
J9 J FAM PRACTICE
JI J. Fam. Pract.
PD SEP
PY 2013
VL 62
IS 9
BP 476
EP 483
PG 8
WC Primary Health Care; Medicine, General & Internal
SC General & Internal Medicine
GA 236LY
UT WOS:000325799700010
PM 24080556
ER
PT J
AU Borovsky, JE
Denton, MH
Denton, RE
Jordanova, VK
Krall, J
AF Borovsky, Joseph E.
Denton, Michael H.
Denton, Richard E.
Jordanova, Vania K.
Krall, Jonathan
TI Estimating the effects of ionospheric plasma on solar wind/magnetosphere
coupling via mass loading of dayside reconnection: Ion-plasma-sheet
oxygen, plasmaspheric drainage plumes, and the plasma cloak
SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
LA English
DT Article
DE reconnection; plasmasphere; plasma sheet; cloak; solar-wind;
magnetosphere coupling
ID COORDINATED MODELING CENTER; GEOSYNCHRONOUS ORBIT; MAGNETIC
RECONNECTION; RING CURRENT; GEOMAGNETIC STORMS; LATITUDE IONOSPHERE;
AURORAL IONOSPHERE; OUTER PLASMASPHERE; THERMAL PLASMA; DRIVEN STORMS
AB Estimates are calculated for the storm time reduction of solar wind/magnetosphere coupling by the mass density (m) of the magnetospheric plasma. Based on the application of the Cassak-Shay reconnection-rate formula at the dayside magnetopause, a numerical factor M is developed to quantify the effect of (m) on the dayside reconnection rate. It is argued that the mass loading of dayside reconnection by (m) also makes reconnection more susceptible to shutoff by magnetosheath velocity shear: a formula is developed to estimate the shortening of the dayside reconnection X-line by (m). Surveys of plasmaspheric drainage plumes at geosynchronous orbit during high-speed-stream-driven storms and coronal mass ejection (CME)-driven storms are presented: in the surveys the CME-driven storms are separated into sheath-driven portions and magnetic-cloud-driven portions. The storm time mass density of the warm plasma cloak (ionospheric outflows into the electron plasma sheet) is obtained from Alfven-wave analysis at geosynchronous orbit. A methodology is developed to extrapolate geosynchronous-orbit plasma measurements to the dayside magnetopause. For each of the three plasmas, estimates of the fractional reduction of the total dayside reconnection rate vary, with typical values of tens of percent; i.e., solar wind/magnetosphere coupling is reduced by tens of percent during storms by oxygen in the ion plasma sheet, by the plasmaspheric drainage plume, and by the plasma cloak. Dependence of the reduction on the F-10.7 solar radio flux is anticipated. Via these ionospheric-origin plasmas, the magnetosphere can exert some control over solar wind/magnetosphere coupling. Pathways to gain a fuller understanding of the physics of the solar wind-driven magnetosphere-ionosphere system are discussed.
C1 [Borovsky, Joseph E.; Denton, Michael H.] Space Sci Inst, Boulder, CO 80301 USA.
[Borovsky, Joseph E.] Univ Michigan, AOSS, Ann Arbor, MI 48109 USA.
[Borovsky, Joseph E.; Denton, Michael H.] Univ Lancaster, Dept Phys, Lancaster, England.
[Denton, Richard E.] Dartmouth Coll, Dept Phys & Astron, Hanover, NH 03755 USA.
[Jordanova, Vania K.] Los Alamos Natl Lab, Los Alamos, NM USA.
[Krall, Jonathan] Naval Res Lab, Washington, DC USA.
RP Borovsky, JE (reprint author), Space Sci Inst, Boulder, CO 80301 USA.
EM jborovsky@spacescience.org
OI Denton, Michael/0000-0002-1748-3710; Jordanova,
Vania/0000-0003-0475-8743
FU Space Science Institute by the NSF GEM Program; NASA CCMSM-24 Program;
University of Michigan by the NASA Geospace SRT Program; NASA LWS TRT
program; NASA Heliophysics Theory Program [NNX11AO59G]
FX The authors wish to thank Joachim Birn, Paul Cassak, Benoit Lavraud,
John Lyon, Antonius Otto, Lutz Rastatter, and Michelle Thomsen for their
help and to thank Kazue Takahashi for the codevelopment of the GOES
density data set. Global-MHD simulations were performed at the CCMC.
This work was supported at Space Science Institute by the NSF GEM
Program and the NASA CCMSM-24 Program and supported at the University of
Michigan by the NASA Geospace SR&T Program. Work at Dartmouth College,
Los Alamos National Laboratory, and Naval Research Laboratory was
supported by the NASA LWS TR&T program. Work at Dartmouth College was
also supported by the NASA Heliophysics Theory Program NNX11AO59G.
NR 100
TC 18
Z9 18
U1 1
U2 12
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 SEP
PY 2013
VL 118
IS 9
BP 5695
EP 5719
DI 10.1002/jgra.50527
PG 25
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 232HN
UT WOS:000325483800026
ER
PT J
AU Picone, JM
Meier, RR
Emmert, JT
AF Picone, J. M.
Meier, R. R.
Emmert, J. T.
TI Theoretical tools for studies of low-frequency thermospheric variability
SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
LA English
DT Article
DE thermospheric variability; low frequency variation; seasonal variation;
semi-annual variation; dimensional analysis; Pi Theorem
ID MODEL; ATMOSPHERE
AB This paper supports studies of low-frequency variability (LFV) within the thermosphere by deriving approximate integral and closed-form solutions of a nontrivial model of thermospheric temperature, density, and composition depending on altitude and time. We also provide a paradigm for applying dimensional analysis in such studies. The domain is the region between the mesopause and the exobase. The solutions emphasize the connectedness of the thermosphere, i.e., nonlocal influences of LFV in key physical parameters and phenomena. The present focus is seasonal variability, within which the origin of a sizable semiannual variation in the thermosphere remains under active investigation. Following from the thermodynamic differential equation for temperature is a filtered, integral solution consistent with the theorem of dimensional analysis. A key result is the explicit demonstration that lower thermospheric boundary conditions affect low-frequency variability throughout the thermosphere, making accurate boundary conditions essential to modeling LFV. In addition, LFV of the temperature varies inversely with variability of the net heating profile and has directly and inversely proportional contributions from variations in the thermal conductivity profile, which can include an eddy diffusivity component. Given a temperature profile, diffusive equilibrium defines model composition. For rapid calculations and transparency, we develop an approximate, closed-form solution for temperature, density, and composition depending only on a minimal set of observable parameters, and from that, we demonstrate the essential role of the phase and amplitude profile of the temperature LFV in determining the corresponding profile of variability in composition and density.
C1 [Picone, J. M.; Meier, R. R.] George Mason Univ, Sch Phys Astron & Computat Sci, Fairfax, VA 22030 USA.
[Picone, J. M.; Emmert, J. T.] Naval Res Lab, Div Space Sci, Washington, DC USA.
RP Picone, JM (reprint author), 3318 Execut Ave, Falls Church, VA 22042 USA.
EM jmpicone@verizon.net
RI Meier, Robert/G-4749-2014
OI Meier, Robert/0000-0001-8497-7115
FU Office of Naval Research (ONR); ONR/Naval Research Laboratory (NRL)
Integrated Sun-Earth System for the Operational Environment (ISES-OE)
Project; NASA Program; Causes and Consequences of the Minimum of Solar
Cycle 23/24 (CCMSC) [09-CCMSC09-0025]; NASA Living With a Star (LWS)
Targeted Research and Technology (TRT) Program [10-LWSTRT10-0049]; Civil
Service Retirement System
FX The authors began this work under funding by the Office of Naval
Research (ONR), and Emmert received partial support from the ONR/Naval
Research Laboratory (NRL) Integrated Sun-Earth System for the
Operational Environment (ISES-OE) Project. The project has been
completed under funding by the NASA Program, Causes and Consequences of
the Minimum of Solar Cycle 23/24 (CCMSC), 09-CCMSC09-0025 (Principal
Investigator (PI), John Emmert,); and the NASA Living With a Star (LWS)
Targeted Research and Technology (TR&T) Program, 10-LWSTRT10-0049 (PI,
Fabrizio Sassi). JMP and RRM thank the Civil Service Retirement System
for partial support. The authors received invaluable comments and
suggestions from Judith Lean, Douglas Drob, and Sassi.
NR 28
TC 5
Z9 5
U1 0
U2 11
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 SEP
PY 2013
VL 118
IS 9
BP 5853
EP 5873
DI 10.1002/jgra.50472
PG 21
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 232HN
UT WOS:000325483800042
ER
PT J
AU Rock, BY
Fliflet, AW
AF Rock, B. Y.
Fliflet, Arne W.
TI Analysis and Design of a Quasi-Optical Mode Converter for a 1-kW,
550-GHz, TE15,2-Mode Gyrotron
SO IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY
LA English
DT Article
DE Cylindrical waveguides; gyrotrons; mode conversion; waveguide antennas
ID WHISPERING GALLERY MODE; RADIATION; SYSTEM; BEAM
AB A simple method is presented for the analysis and design of gyrotron output couplers based on a Vlasov-type launcher and a single focusing mirror. It is shown that a quasi-analytical solution to the Kirchhoff diffraction integral can be implemented to accurately model the diffraction spreading of the launched radiation with good accuracy relative to an Electric Field Integral Equation simulation. Spectral information is exploited in the design to appropriately size the mirror and to predict the conversion efficiency and Gaussian beam parameters of the converted beam. Additionally, a set of design equations, which is more general than any previously published, is derived for the reflector. A comparison of the conversion properties of a converter designed using the new equations and previously published equations is provided. For the case considered, the converter designed using the new equations generate a field distribution with almost complete isolation of the main radiation lobe at the window plane. For the reflector designed using the previous equations, the contamination of the main lobe by the side lobes is significant beginning at the 9-dB contour. The spot size of the gyrotron output beam has also been reduced by about 30% by using the new design equations.
C1 [Rock, B. Y.; Fliflet, Arne W.] Naval Res Lab, Div Plasma Phys, Beam Phys Branch, Washington, DC 20375 USA.
RP Rock, BY (reprint author), Naval Res Lab, Div Plasma Phys, Beam Phys Branch, Washington, DC 20375 USA.
EM ben.rock@nrl.navy.mil
FU Naval Research Laboratory base program
FX This work was supported by the Naval Research Laboratory base program.
NR 23
TC 3
Z9 4
U1 1
U2 10
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 2156-342X
J9 IEEE T THZ SCI TECHN
JI IEEE Trans. Terahertz Sci. Technol.
PD SEP
PY 2013
VL 3
IS 5
BP 641
EP 648
DI 10.1109/TTHZ.2013.2276117
PG 8
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA 225HY
UT WOS:000324954300018
ER
PT J
AU Hwang, PA
Burrage, DM
Wang, DW
Wesson, JC
AF Hwang, Paul A.
Burrage, Derek M.
Wang, David W.
Wesson, Joel C.
TI Ocean Surface Roughness Spectrum in High Wind Condition for Microwave
Backscatter and Emission Computations
SO JOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY
LA English
DT Review
DE Wave properties; Wind waves; Air-sea interaction; Algorithms; Radars;
Radar observations; Surface observations
ID MEAN-SQUARE SLOPE; GRAVITY-CAPILLARY WAVES; RADAR CROSS-SECTION; SHORT
WATER-WAVES; SEA-SURFACE; GENERATED WAVES; NUMBER SPECTRA; EQUILIBRIUM
RANGE; DRAG COEFFICIENT; VECTOR WINDS
AB Ocean surface roughness plays an important role in air-sea interaction and ocean remote sensing. Its primary contribution is from surface waves much shorter than the energetic wave components near the peak of the wave energy spectrum. Field measurements of short-scale waves are scarce. In contrast, microwave remote sensing has produced a large volume of data useful for short-wave investigation. Particularly, Bragg resonance is the primary mechanism of radar backscatter from the ocean surface and the radar serves as a spectrometer of short surface waves. The roughness spectra inverted from radar backscatter measurements expand the short-wave database to high wind conditions in which in situ sensors do not function well. Using scatterometer geophysical model functions for L-, C-, and Ku-band microwave frequencies, the inverted roughness spectra, covering Bragg resonance wavelengths from 0.012 to 0.20 m, show a convergent trend in high winds. This convergent trend is incorporated in the surface roughness spectrum model to improve the applicable wind speed range for microwave scattering and emission computations.
C1 [Hwang, Paul A.] Naval Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
[Burrage, Derek M.; Wang, David W.; Wesson, Joel C.] Naval Res Lab, Div Oceanog, Stennis Space Ctr, MS USA.
RP Hwang, PA (reprint author), Naval Res Lab, Remote Sensing Div, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM paul.hwang@nrl.navy.mil
FU Office of Naval Research
FX This work is sponsored by the Office of Naval Research as part of the
projects Sea Surface Roughness Impacts on Microwave Sea Surface Salinity
Measurements (SRIMS) and Breaking-Wave Effects under High Winds (BWE).
The data for the lookup tables of Ku2001 GMF are provided by Debora
Smith, and the cosine harmonic coefficients of Ku2011 GMF are provided
by Lucrezia Ricciardulli, both at Remote Sensing Systems. The original
SSA/SPM model code used for the radiometer brightness temperature
computations is provided by Nicolas Reul (Institut Francais de Recherche
pour l'Exploitation de la Mer, France). We are grateful for the comments
and suggestions from two anonymous reviewers.
NR 118
TC 12
Z9 12
U1 1
U2 16
PU AMER METEOROLOGICAL SOC
PI BOSTON
PA 45 BEACON ST, BOSTON, MA 02108-3693 USA
SN 0739-0572
EI 1520-0426
J9 J ATMOS OCEAN TECH
JI J. Atmos. Ocean. Technol.
PD SEP
PY 2013
VL 30
IS 9
BP 2168
EP 2188
DI 10.1175/JTECH-D-12-00239.1
PG 21
WC Engineering, Ocean; Meteorology & Atmospheric Sciences
SC Engineering; Meteorology & Atmospheric Sciences
GA 224MH
UT WOS:000324890100017
ER
PT J
AU Cox, ME
Dunand, DC
AF Cox, Marie E.
Dunand, David C.
TI Anisotropic mechanical properties of amorphous Zr-based foams with
aligned, elongated pores
SO ACTA MATERIALIA
LA English
DT Article
DE Metallic foam; Bulk metallic glass; Equal channel angular press;
Zirconium-based glassy alloy; Porous material
ID BULK METALLIC-GLASS; COMPRESSIVE PROPERTIES; MATRIX COMPOSITES; POROUS
COPPER; ALLOYS; CONSOLIDATION; DEFORMATION; PLASTICITY; EXTRUSION;
BEHAVIOR
AB Equal-channel angular extrusion is used to consolidate a blend of amorphous Zr56.3Nb5.1Cu15.6Ni12.9Al10.0 and crystalline W powders into dense composites. Chemical dissolution of the crystalline phase results in amorphous foams with elongated pores, aligned at a 22-28 degrees angle with respect to the extrusion direction, whose compressive properties are studied for various orientations. As the angle between the pore long direction and the applied stress direction increases from 0 degrees to 68 degrees, there is a significant decrease in loading stiffness and peak stress, as expected from predictive analytical models; however, the observed increase in stiffness and peak stress observed when the pores are oriented 90 degrees to the direction of loading is not predicted by all of the models. Foams with pores aligned 24-68 degrees to the direction of loading show increased plastic bending in individual walls and accumulation in microscopic damage without failure, leading to increased compressive ductility and absorbed energy over other orientations. (C) 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
C1 [Cox, Marie E.] Naval Res Lab, Natl Res Council, Washington, DC 20375 USA.
[Dunand, David C.] Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA.
RP Cox, ME (reprint author), Naval Res Lab, Natl Res Council, Washington, DC 20375 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 M.E.C. was supported by a National Science Foundation Graduate Research
Fellowship. This work was funded by the Army Research Laboratory (ARL)
and the authors thank Drs. Laszlo Kecskes and Suveen Mathaudhu (ARL) for
useful discussion and Mr. Micah Gallagher (ARL) for assistance in
machining samples. The authors also thank Mr. Larry Jones at Ames
Laboratory (Department of Energy) for BMG powder preparation; they
acknowledge useful discussions with, and use of the ECAE equipment of,
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.
NR 41
TC 4
Z9 4
U1 1
U2 35
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 SEP
PY 2013
VL 61
IS 16
BP 5937
EP 5948
DI 10.1016/j.actamat.2013.06.028
PG 12
WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical
Engineering
SC Materials Science; Metallurgy & Metallurgical Engineering
GA 218RI
UT WOS:000324449700003
ER
PT J
AU Lim, HJ
Dersch, CM
Rothman, RB
Deschamps, JR
Jacobson, AE
Rice, KC
AF Lim, Hwan Jung
Dersch, Christina M.
Rothman, Richard B.
Deschamps, Jeffrey R.
Jacobson, Arthur E.
Rice, Kenner C.
TI Probes for narcotic receptor mediated phenomena. 48. C7-and
C8-substituted 5-phenylmorphan opioids from diastereoselective
alkylation
SO EUROPEAN JOURNAL OF MEDICINAL CHEMISTRY
LA English
DT Article
DE C7-and C8-substituted 5-phenylmorphans; Opioid receptor affinity;
"One-pot" diastereoselective synthesis
ID OXIDE-BRIDGED PHENYLMORPHANS; N-PHENETHYL ANALOGS; MU; AFFINITY;
ANTAGONIST; SERIES
AB The exploration of the effect of substituents at C7 and C8 of the 5-phenylmorphans on their affinity for opioid receptors was enabled by our recently introduced "one pot" diastereoselective synthesis that provided C7-oxo, hydroxy and alkyl substituents, C8-alkyl substituted 5-phenylmorphans, and compounds that had a new cyclohexane ring that includes the C7 and C8 carbon atoms of the 5-phenylmorphan. The affinity of the 5-phenylmorphans for opioid receptors is increased by a C8-methyl substituent, compared with its C7 analog. The affinity of the newly synthesized compounds is generally for the mu-opioid receptor, rather than the delta- or kappa-receptors. Addition of a new cyclohexane ring to the C7 and C8 positions on the cyclohexane ring of the 5-phenylmorphans enhances mu-receptor affinity, bringing the K-i to the subnanomolar level. Unexpectedly, the N-methyl substituted compounds generally had higher affinity than comparable N-phenethyl-substituted relatives. The configurations of two compounds were determined by single-crystal X-ray crystallographic analyses. Published by Elsevier Masson SAS.
C1 [Lim, Hwan Jung; Jacobson, Arthur E.; Rice, Kenner C.] Natl Inst Drug Abuse, NIH, Dept Hlth & Human Serv, Drug Design & Synth Sect,Chem Biol Res Branch, Bethesda, MD 20892 USA.
[Lim, Hwan Jung; Jacobson, Arthur E.; Rice, Kenner C.] Natl Inst Alcohol Abuse & Alcoholism, NIH, Dept Hlth & Human Serv, Bethesda, MD 20892 USA.
[Dersch, Christina M.; Rothman, Richard B.] Natl Inst Drug Abuse, Addict Res Ctr, NIH, Dept Hlth & Human Serv,Clin Psychopharmacol Sect, Baltimore, MD 21224 USA.
[Deschamps, Jeffrey R.] USN, Res Lab, Struct Matter Lab, Naval Res Lab, Washington, DC 20375 USA.
RP Rice, KC (reprint author), Natl Inst Drug Abuse, NIH, Dept Hlth & Human Serv, Drug Design & Synth Sect,Chem Biol Res Branch, 5625 Fishers Lane,Room 4N03, Bethesda, MD 20892 USA.
EM kr21f@nih.gov
OI Deschamps, Jeffrey/0000-0001-5845-0010
FU NIH Intramural Research Programs of the National Institute on Drug Abuse
(NIDA); National Institute of Alcohol Abuse and Alcoholism; NIH
Intramural Research Program of the National Institute on Drug Abuse
(NIDA); NIDA [Y1-DA1101]; Naval Research Laboratory (NRL)
FX The work of the Drug Design and Synthesis Section, CBRB, NIDA, & NIAAA,
was supported by the NIH Intramural Research Programs of the National
Institute on Drug Abuse (NIDA) and the National Institute of Alcohol
Abuse and Alcoholism. The Clinical Psychopharmacology Section, CBRB,
NIDA, was supported by the NIH Intramural Research Program of the
National Institute on Drug Abuse (NIDA). We also thank Dr. Klaus
Gawrisch and Dr. Walter Teague (Laboratory of Membrane Biochemistry and
Biophysics, NIAAA, for NMR spectral data). The authors also express
their thanks to Noel Whittaker, Mass Spectrometry Facility, NIDDK, for
mass spectral data. The X-ray crystallographic work was supported by
NIDA through an Interagency Agreement #Y1-DA1101 with the Naval Research
Laboratory (NRL).
NR 16
TC 1
Z9 1
U1 0
U2 5
PU ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
PI PARIS
PA 23 RUE LINOIS, 75724 PARIS, FRANCE
SN 0223-5234
EI 1768-3254
J9 EUR J MED CHEM
JI Eur. J. Med. Chem.
PD SEP
PY 2013
VL 67
BP 335
EP 343
DI 10.1016/j.ejmech.2013.06.030
PG 9
WC Chemistry, Medicinal
SC Pharmacology & Pharmacy
GA 227NY
UT WOS:000325121800035
PM 23880358
ER
PT J
AU Colci, M
Johnson, M
AF Colci, Madalina
Johnson, Mark
TI Dipolar Coupling Between Nanopillar Spin Valves and Magnetic Quantum
Cellular Automata Arrays
SO IEEE TRANSACTIONS ON NANOTECHNOLOGY
LA English
DT Article
DE Electromagnetic coupling; logic circuits; magnetic circuits; magnetic
devices; magnetic force microscopy (MFM); magnetic multilayers; magnetic
switching; magnetization reversal; nanostructures; programmable logic
devices; quantum cellular automata; spin valves
ID CO/CU/CO PILLARS; NANOMAGNET; LOGIC; INTERFACE
AB We experimentally demonstrate magnetostatic coupling between a nanopillar pseudo spin valve structure and a linear array of dipole-coupled permalloy nanomagnets. Using magnetic force microscopy, we study the interaction between the spin valve and the first element of the array, and present evidence that the nanomagnet couples with the hard layer of the spin valve for two spin valves with distinctly different composition. Our study includes a statistical analysis of antiferromagnetic order within the linear array and provides insights into the range of behavior that these arrays can display. These results bear directly on the design of magnetic quantum cellular automata (MQCA) logic devices, showing that multilayer devices can couple to simple nanomagnets. Redesigning the hard layer of the magnetoresistive devices would make them operational as an electronic input that will allow integration of MQCA networks in complex electronic circuitry.
C1 [Colci, Madalina; Johnson, Mark] Naval Res Lab, Div Mat Phys, Washington, DC 20375 USA.
RP Colci, M (reprint author), Naval Res Lab, Div Mat Phys, Washington, DC 20375 USA.
EM colci@illinoisalumni.org; mark.b.johnson@nrl.navy.mil
FU Office of Naval Research [N0001409WX30420]
FX Manuscript received January 12, 2013; accepted July 11, 2013. Date of
publication July 26, 2013; date of current version September 4, 2013.
This work was supported by the Office of Naval Research under Grant
N0001409WX30420. The review of this paper was arranged by Associate
Editor S. D. Cotofana.
NR 29
TC 3
Z9 3
U1 2
U2 25
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1536-125X
J9 IEEE T NANOTECHNOL
JI IEEE Trans. Nanotechnol.
PD SEP
PY 2013
VL 12
IS 5
BP 824
EP 830
DI 10.1109/TNANO.2013.2275033
PG 7
WC Engineering, Electrical & Electronic; Nanoscience & Nanotechnology;
Materials Science, Multidisciplinary; Physics, Applied
SC Engineering; Science & Technology - Other Topics; Materials Science;
Physics
GA 219JH
UT WOS:000324501600024
ER
PT J
AU Anderson, CR
Volos, HI
Buehrer, RM
AF Anderson, Christopher R.
Volos, Haris I.
Buehrer, R. Michael
TI Characterization of Low-Antenna Ultrawideband Propagation in a Forest
Environment
SO IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
LA English
DT Article
DE Forest; multipath channels; Rician fading; ultrawideband (UWB); wireless
propagation
ID RADIO-WAVE PROPAGATION; CHANNEL CHARACTERIZATION; WIRELESS
COMMUNICATIONS; SIGNAL ATTENUATION; MU-DISTRIBUTION; MODEL; FOLIAGE;
VEGETATION; PATHS; AREAS
AB Impulse ultrawideband (UWB) communication promises a number of benefits for use in wireless sensor networks, particularly in forest environments, where it has the potential to provide robust operation, along with the ability to combine communications with precision position location. In this paper, we present measurement results and empirical models for UWB signal propagation in a forest environment. Path-loss measurements were performed using a 620-ps duration UWB pulse with a frequency range of 830-4200 MHz. More than 22 000 measurements were recorded in 165 locations in four diverse forest environments in Virginia and Maryland, USA. Transmitters and receivers were separated by distances that range from 4 m to 50 m. Large-scale path loss was most closely modeled by log-distance propagation, with path-loss exponents ranging from 2.5 to 3.8. Small-scale fading analysis indicated that UWB signals experience Rician fading, with K-factors in the range of 10-16 dB. K-factors were found to depend on forest type, with the medium-density forest providing the greatest number of multipath components and highest overall K-factor. Multipath component analysis demonstrated that a forest is a fairly rich multipath environment; however, in most cases, approximately 90% of the available energy was contained within the strongest 3-15 multipath components. Postprocessing analysis divided the UWB pulse into three frequency subbands and demonstrated that model parameters also had frequency dependence. These measurements and models should aid in the development of future UWB outdoor sensor networks.
C1 [Anderson, Christopher R.] US Naval Acad, Wireless Measurements Grp, Annapolis, MD 21402 USA.
[Volos, Haris I.] Univ Arizona, Dept Elect & Comp Engn, Tucson, AZ 85271 USA.
[Buehrer, R. Michael] Virginia Polytech Inst & State Univ, Mobile & Portable Radio Res Grp, Wireless Virginia Tech, Bradley Dept Elect & Comp Engn, Blacksburg, VA 24062 USA.
RP Anderson, CR (reprint author), US Naval Acad, Wireless Measurements Grp, Annapolis, MD 21402 USA.
EM canderso@usna.edu; hvolos@arizona.edu; buehrer@vt.edu
NR 56
TC 6
Z9 6
U1 0
U2 7
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0018-9545
EI 1939-9359
J9 IEEE T VEH TECHNOL
JI IEEE Trans. Veh. Technol.
PD SEP
PY 2013
VL 62
IS 7
BP 2878
EP 2895
DI 10.1109/TVT.2013.2251027
PG 18
WC Engineering, Electrical & Electronic; Telecommunications; Transportation
Science & Technology
SC Engineering; Telecommunications; Transportation
GA 220CH
UT WOS:000324557800001
ER
PT J
AU Alqadah, HF
Valdivia, N
AF Alqadah, H. F.
Valdivia, N.
TI A frequency based constraint for a multi-frequency linear sampling
method
SO INVERSE PROBLEMS
LA English
DT Article
ID INVERSE OBSTACLE SCATTERING; SIGNAL RECOVERY; ALGORITHM; MINIMIZATION
AB The linear samplingmethod (LSM) has become a well established non-iterative technique for a variety of inverse scattering problems. The method offers a number of advantages over competing inverse scattering methods, mainly it is based on solving a linear problem while being able to account for multipath effects. Unfortunately under the current framework the method is only effective when using a large number of multi-static data, and therefore may be impractical for many imaging applications. While primarily developed under a single frequency framework, recently the extension of the method to multi-banded data sets has been considered. It is known in general that the availability of multi-frequency data should compensate for reduced spatial diversity, but it is not clear how this can be accomplished for the LSM. In this work we take a step in this direction by considering a frequency based partial variation approach. We first establish that on bands absent of any corresponding Dirichlet eigenvalues the Herglotz density exhibits bounded variation. We then consider a regularization method incorporating this prior knowledge. The proposed approach exhibited a good estimate of the unknown Dirichlet eigenvalues of the obstacle in question when using reduced data. This observation also correlated with higher quality 3D reconstructions.
C1 [Alqadah, H. F.] CNR, Acoust Div, Naval Res Lab Postdoctoral Associate, Washington, DC 20418 USA.
[Valdivia, N.] Naval Res Lab, Acoust Div, Washington, DC USA.
RP Alqadah, HF (reprint author), CNR, Acoust Div, Naval Res Lab Postdoctoral Associate, Washington, DC 20418 USA.
EM hatim.alqadah.ctr@nrl.navy.mil
FU National Research Council (NRC); Office of Naval Research (ONR)
FX This research was jointly supported by the National Research Council
(NRC) postdoctoral associateship program and the Office of Naval
Research (ONR). The authors would also like to acknowledge Dr Matthew
Ferrara for his insightful discussions relating to the constrained
multi-frequency LSM.
NR 41
TC 5
Z9 5
U1 0
U2 3
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 SEP
PY 2013
VL 29
IS 9
AR 095019
DI 10.1088/0266-5611/29/9/095019
PG 27
WC Mathematics, Applied; Physics, Mathematical
SC Mathematics; Physics
GA 219GU
UT WOS:000324495100019
ER
PT J
AU Eddy, CR
Nepal, N
Hite, JK
Mastro, MA
AF Eddy, Charles R., Jr.
Nepal, Neeraj
Hite, Jennifer K.
Mastro, Michael A.
TI Perspectives on future directions in III-N semiconductor research
SO JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
LA English
DT Article
ID ATOMIC LAYER EPITAXY; MOLECULAR-BEAM EPITAXY; LATERAL POLARITY
HETEROSTRUCTURES; VAPOR-PHASE EPITAXY; GALLIUM NITRIDE; NANOWIRE
HETEROSTRUCTURES; THERMAL-CONDUCTIVITY; THIN-FILMS; DISLOCATION-DENSITY;
SILICON-CARBIDE
AB The family of III-V nitride semiconductors has garnered significant research attention over the last 20-25 years, and these efforts have led to many highly successful technologies, especially in the area of light emitting devices such as light emitting diodes for solid state white lighting and lasers for high density optical read/write memories. These applications have taken advantage of a key material property of the III-N materials, namely a direct, tunable (0.7-6.2 eV, lambda similar to 200 nm to 1.7 mu m) bandgap and have been accomplished despite a relatively poor level of material quality. But a direct, tunable bandgap is only one of many interesting properties of III-N materials of interest to potential future technologies. A considerable list of first and second order properties make this family of semiconductors even more attractive-namely, electric polarization, piezoelectricity, high breakdown field, pyroelectricity, electro-optic and photo-elastic effects, etc. The first few of these have found much utility in the development of high power transistors that promise significant commercial success in both communications and power switching applications. As these areas begin to flourish, it is reasonable to begin to explore what might be next for this versatile family of semiconductors. Here are highlighted three areas of significant potential for future III-N research-atomic layer epitaxy of complex heterostructures, variable polarity homo- and hetero-structures of arbitrary geometries, and nanowire heterostructures. Early results, key technical challenges, and the ultimate potential for future technologies are highlighted for each research path. (C) 2013 American Vacuum Society.
C1 [Eddy, Charles R., Jr.; Hite, Jennifer K.; Mastro, Michael A.] US Naval Res Lab, Power Elect Mat Sect, Washington, DC 20375 USA.
[Nepal, Neeraj] Amer Assoc Engn Educ, Washington, DC 20036 USA.
RP Eddy, CR (reprint author), US Naval Res Lab, Power Elect Mat Sect, Code 6882,4555 Overlook Ave SW, Washington, DC 20375 USA.
EM chip.eddy@nrl.navy.mil
RI Hite, Jennifer/L-5637-2015
OI Hite, Jennifer/0000-0002-4090-0826
FU American Association for Engineering Education-NRL Postdoctoral Fellow
Program; Office of Naval Research
FX N.N. gratefully acknowledges the support of the American Association for
Engineering Education-NRL Postdoctoral Fellow Program. Work at the U.S.
Naval Research Laboratory is supported by the Office of Naval Research.
NR 106
TC 11
Z9 11
U1 4
U2 66
PU A V S AMER INST PHYSICS
PI MELVILLE
PA STE 1 NO 1, 2 HUNTINGTON QUADRANGLE, MELVILLE, NY 11747-4502 USA
SN 0734-2101
J9 J VAC SCI TECHNOL A
JI J. Vac. Sci. Technol. A
PD SEP
PY 2013
VL 31
IS 5
AR 058501
DI 10.1116/1.4813687
PG 16
WC Materials Science, Coatings & Films; Physics, Applied
SC Materials Science; Physics
GA 217UZ
UT WOS:000324388800027
ER
PT J
AU Forgoston, E
Schwartz, IB
AF Forgoston, Eric
Schwartz, Ira B.
TI Predicting Unobserved Exposures from Seasonal Epidemic Data
SO BULLETIN OF MATHEMATICAL BIOLOGY
LA English
DT Article
DE Epidemics with seasonality and noise; Model reduction
ID DIFFERENTIAL-EQUATIONS; RECURRENT EPIDEMICS; NORMAL FORMS; TIME-SERIES;
DYNAMICS; MEASLES; PREDICTABILITY; BIFURCATION; OUTBREAKS; DISEASES
AB We consider a stochastic Susceptible-Exposed-Infected-Recovered (SEIR) epidemiological model with a contact rate that fluctuates seasonally. Through the use of a nonlinear, stochastic projection, we are able to analytically determine the lower dimensional manifold on which the deterministic and stochastic dynamics correctly interact. Our method produces a low dimensional stochastic model that captures the same timing of disease outbreak and the same amplitude and phase of recurrent behavior seen in the high dimensional model. Given seasonal epidemic data consisting of the number of infectious individuals, our method enables a data-based model prediction of the number of unobserved exposed individuals over very long times.
C1 [Forgoston, Eric] Montclair State Univ, Dept Math Sci, Montclair, NJ 07043 USA.
[Schwartz, Ira B.] US Naval Res Lab, Div Plasma Phys, Nonlinear Syst Dynam Sect, Washington, DC 20375 USA.
RP Forgoston, E (reprint author), Montclair State Univ, Dept Math Sci, 1 Normal Ave, Montclair, NJ 07043 USA.
EM eric.forgoston@montclair.edu; ira.schwartz@nrl.navy.mil
FU Office of Naval Research; National Institutes of Health; Naval Research
Laboratory (NRL) [N0017310-2-C007]; NRL Base Research Program
[N0001412WX30002]; National Institute of General Medical Sciences
[R01GM090204]
FX The authors gratefully acknowledge support from the Office of Naval
Research, and the National Institutes of Health. E. F. is supported by
Award Number N0017310-2-C007 from the Naval Research Laboratory (NRL).
I. B. S. was supported by the NRL Base Research Program N0001412WX30002,
and by Award Number R01GM090204 from the National Institute of General
Medical Sciences. 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 40
TC 4
Z9 4
U1 0
U2 12
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0092-8240
J9 B MATH BIOL
JI Bull. Math. Biol.
PD SEP
PY 2013
VL 75
IS 9
BP 1450
EP 1471
DI 10.1007/s11538-013-9855-0
PG 22
WC Biology; Mathematical & Computational Biology
SC Life Sciences & Biomedicine - Other Topics; Mathematical & Computational
Biology
GA 213NX
UT WOS:000324065600003
PM 23729314
ER
PT J
AU Buchanan, JL
Gilbert, R
Ou, Y
Nohe, A
Schaefer, R
AF Buchanan, James L.
Gilbert, Robert
Ou, Yvonne
Nohe, Anja
Schaefer, Rachel
TI The Kinetics of Vitamin D-3 in the Osteoblastic Cell
SO BULLETIN OF MATHEMATICAL BIOLOGY
LA English
DT Article
DE Vitamin D; Convection-diffusion
ID PARATHYROID-HORMONE; CALCIUM-TRANSPORT; CYTOPLASM; DIFFUSION; MOBILITY;
GROWTH; VOLUME
AB Experimental evidence is presented on the translocation of vitamin D metabolite, 1,25-(OH)(2)D-3, from the membrane to the nucleus in osteoblast progenitor cells. A mathematical model permitting traversal of the cytoplasm at either a fixed velocity or by diffusion is formulated in order to determine whether transport along the cytoskeletal tracks is more consistent with the observed spatial-temporal distribution than diffusion, and it is so found. The model includes reactions in the nucleus involving D-3 to form other compounds, such as protegerin, and thus also makes predictions of the concentrations of these compounds in various regions of the cell.
C1 [Buchanan, James L.] US Naval Acad, Dept Math, Annapolis, MD USA.
[Gilbert, Robert; Ou, Yvonne] Univ Delaware, Dept Math Sci, Newark, DE 19716 USA.
[Nohe, Anja; Schaefer, Rachel] Univ Delaware, Newark, DE USA.
RP Buchanan, JL (reprint author), US Naval Acad, Dept Math, Annapolis, MD USA.
EM jlb@usna.edu
FU National Science Foundation [DMS-0920850, 0920852]; National Center for
Research Resources [5P30RR031160-03]; National Institute of General
Medical Sciences from the National Institutes of Health [8 P30
GM103519-03]
FX Y. Ou's work was funded in part by the National Science Foundation
Research Math. Biology Grants DMS-0920850 and 0920852.; A. Nohe's
project was supported by grants from the National Center for Research
Resources (5P30RR031160-03) and the National Institute of General
Medical Sciences (8 P30 GM103519-03) from the National Institutes of
Health.
NR 28
TC 0
Z9 0
U1 0
U2 4
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0092-8240
J9 B MATH BIOL
JI Bull. Math. Biol.
PD SEP
PY 2013
VL 75
IS 9
BP 1612
EP 1635
DI 10.1007/s11538-013-9861-2
PG 24
WC Biology; Mathematical & Computational Biology
SC Life Sciences & Biomedicine - Other Topics; Mathematical & Computational
Biology
GA 213NX
UT WOS:000324065600009
PM 23775045
ER
PT J
AU Koehler, AD
Nepal, N
Anderson, TJ
Tadjer, MJ
Hobart, KD
Eddy, CR
Kub, FJ
AF Koehler, Andrew D.
Nepal, Neeraj
Anderson, Travis J.
Tadjer, Marko J.
Hobart, Karl D.
Eddy, Charles R., Jr.
Kub, Francis J.
TI Atomic Layer Epitaxy AlN for Enhanced AlGaN/GaN HEMT Passivation
SO IEEE ELECTRON DEVICE LETTERS
LA English
DT Article
DE Atomic layer epitaxy (ALE) passivation; current collapse; dynamic
ON-resistance; GaN; high-electron-mobility transistor (HEMT) AlN
ID SURFACE PASSIVATION; GAN
AB Enhancements in AlGaN/GaN high-electron-mobility transistor (HEMT) performance have been realized through ultrathin (4 nm) AlN passivation layers, formed by atomic layer epitaxy (ALE). A combination of ex situ and in situ surface cleans prepare the surface for deposition of ALE AlN. HEMTs passivated by high crystallinity AlN, grown at 500 degrees C, show improvements in 2-D electron gas sheet carrier density, gate leakage current, OFF-state drain leakage current, subthreshold slope, and breakdown voltage. In addition, degradation of dynamic ON resistance during pulsed OFF-state voltage switching stress is suppressed by similar to 50% compared with HEMTs passivated by conventional plasma enhanced chemical vapor deposition SiNx.
C1 [Koehler, Andrew D.; Nepal, Neeraj; Anderson, Travis J.; Tadjer, Marko J.; Hobart, Karl D.; Eddy, Charles R., Jr.; Kub, Francis J.] Naval Res Lab, Washington, DC 20375 USA.
RP Koehler, AD (reprint author), Naval Res Lab, Washington, DC 20375 USA.
EM andrew.koehler@nrl.navy.mil
FU U.S. Naval Research Laboratory; American Society for Engineering
Education
FX This work was supported in part by the U.S. Naval Research Laboratory
and the American Society for Engineering Education. The review of this
letter was arranged by Editor J. A. del Alamo.
NR 13
TC 21
Z9 22
U1 5
U2 82
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0741-3106
J9 IEEE ELECTR DEVICE L
JI IEEE Electron Device Lett.
PD SEP
PY 2013
VL 34
IS 9
BP 1115
EP 1117
DI 10.1109/LED.2013.2274429
PG 3
WC Engineering, Electrical & Electronic
SC Engineering
GA 212KR
UT WOS:000323982500014
ER
PT J
AU Moon, JS
Seo, HC
Stratan, F
Antcliffe, M
Schmitz, A
Ross, RS
Kiselev, AA
Wheeler, VD
Nyakiti, LO
Gaskill, DK
Lee, KM
Asbeck, PM
AF Moon, Jeong S.
Seo, Hwa-chang
Stratan, Fred
Antcliffe, Mike
Schmitz, Adele
Ross, Richard S.
Kiselev, Andrey A.
Wheeler, Virginia D.
Nyakiti, Luke O.
Gaskill, D. Kurt
Lee, Kang-Mu
Asbeck, Peter M.
TI Lateral Graphene Heterostructure Field-Effect Transistor
SO IEEE ELECTRON DEVICE LETTERS
LA English
DT Article
DE Field-effect transistor (FET); graphene; heterostructure
ID EPITAXIAL-GRAPHENE; RF
AB We report the first experimental demonstration of a lateral graphene heterostructure field-effect transistor (HFET) at wafer scale, where the graphene heterostructure channel consists of epitaxial graphene (Gr)/fluorographene (GrF)/graphene (Gr). GrF is a widebandgap material, providing a potential barrier to lateral carrier transport. Gate bias modulation of the Gr/GrF/Gr barrier via an electric field effect results in normally-off enhancement-mode graphene HFETs with an ON-OFF switching ratio of 10(5) at room temperature. These devices also demonstrate excellent current-voltage saturation, providing a potential path for active RF applications.
C1 [Moon, Jeong S.; Seo, Hwa-chang; Stratan, Fred; Antcliffe, Mike; Schmitz, Adele; Ross, Richard S.; Kiselev, Andrey A.] HRL Labs LLC, Malibu, CA 90265 USA.
[Wheeler, Virginia D.; Nyakiti, Luke O.; Gaskill, D. Kurt] Naval Res Lab, Washington, DC 20375 USA.
[Lee, Kang-Mu; Asbeck, Peter M.] Univ Calif San Diego, La Jolla, CA 92093 USA.
RP Moon, JS (reprint author), HRL Labs LLC, Malibu, CA 90265 USA.
EM jmoon@hrl.com
NR 23
TC 21
Z9 24
U1 8
U2 101
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0741-3106
J9 IEEE ELECTR DEVICE L
JI IEEE Electron Device Lett.
PD SEP
PY 2013
VL 34
IS 9
BP 1190
EP 1192
DI 10.1109/LED.2013.2270368
PG 3
WC Engineering, Electrical & Electronic
SC Engineering
GA 212KR
UT WOS:000323982500039
ER
PT J
AU Pearce, A
Wulsin, D
Blanco, JA
Krieger, A
Litt, B
Stacey, WC
AF Pearce, Allison
Wulsin, Drausin
Blanco, Justin A.
Krieger, Abba
Litt, Brian
Stacey, William C.
TI Temporal changes of neocortical high-frequency oscillations in epilepsy
SO JOURNAL OF NEUROPHYSIOLOGY
LA English
DT Article
DE epilepsy; HFO; oscillation; machine learning; classifier
ID FAST RIPPLES; STATUS EPILEPTICUS; ENTORHINAL CORTEX; 80-500 HZ;
HIPPOCAMPUS; MECHANISMS; RECORDINGS; SEIZURES; SPIKES; EEG
AB High-frequency (100-500 Hz) oscillations (HFOs) recorded from intracranial electrodes are a potential biomarker for epileptogenic brain. HFOs are commonly categorized as ripples (100-250 Hz) or fast ripples (250-500 Hz), and a third class of mixed frequency events has also been identified. We hypothesize that temporal changes in HFOs may identify periods of increased the likelihood of seizure onset. HFOs (86,151) from five patients with neocortical epilepsy implanted with hybrid (micro + macro) intracranial electrodes were detected using a previously validated automated algorithm run over all channels of each patient's entire recording. HFOs were characterized by extracting quantitative morphologic features and divided into four time epochs (interictal, preictal, ictal, and postictal) and three HFO clusters (ripples, fast ripples, and mixed events). We used supervised classification and nonparametric statistical tests to explore quantitative changes in HFO features before, during, and after seizures. We also analyzed temporal changes in the rates and proportions of events from each HFO cluster during these periods. We observed patient-specific changes in HFO morphology linked to fluctuation in the relative rates of ripples, fast ripples, and mixed frequency events. These changes in relative rate occurred in pre- and postictal periods up to thirty min before and after seizures. We also found evidence that the distribution of HFOs during these different time periods varied greatly between individual patients. These results suggest that temporal analysis of HFO features has potential for designing custom seizure prediction algorithms and for exploring the relationship between HFOs and seizure generation.
C1 [Pearce, Allison] Univ Penn, Dept Comp Sci, Philadelphia, PA 19104 USA.
[Wulsin, Drausin; Litt, Brian] Univ Penn, Dept Bioengn, Philadelphia, PA 19104 USA.
[Blanco, Justin A.] US Naval Acad, Dept Elect & Comp Engn, Annapolis, MD USA.
[Krieger, Abba] Univ Penn, Wharton Sch Business, Dept Stat, Philadelphia, PA 19104 USA.
[Litt, Brian] Univ Penn, Penn Epilepsy Ctr, Philadelphia, PA 19104 USA.
[Stacey, William C.] Univ Michigan, Dept Neurol, Ann Arbor, MI 48109 USA.
[Stacey, William C.] Univ Michigan, Dept Biomed Engn, Ann Arbor, MI 48109 USA.
RP Stacey, WC (reprint author), Univ Michigan, Dept Neurol, 1500 E Med Ctr Dr,SPC 5036, Ann Arbor, MI 48109 USA.
EM William.stacey@umich.edu
FU Rachleff Scholars Program in Engineering at the University of
Pennsylvania; National Institute of Neurological Disorders and Stroke
(NINDS) [2R01-NS0-41811-06, 1-U24-NS-063930-02]; Citizens United for
Research in Epilepsy; Dr. Michel and Mrs. Anna Mirowski Discovery Fund
for Epilepsy Research; NINDS [1K08-NS-069783-02]
FX A. Pearce was supported by the Rachleff Scholars Program in Engineering
at the University of Pennsylvania. University of Pennsylvania students
and investigators were supported by National Institute of Neurological
Disorders and Stroke (NINDS) Grants 2R01-NS0-41811-06 and
1-U24-NS-063930-02, Citizens United for Research in Epilepsy, and Dr.
Michel and Mrs. Anna Mirowski Discovery Fund for Epilepsy Research. W.
C. Stacey was supported by NINDS Grant 1K08-NS-069783-02.
NR 39
TC 17
Z9 17
U1 0
U2 9
PU AMER PHYSIOLOGICAL SOC
PI BETHESDA
PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814 USA
SN 0022-3077
J9 J NEUROPHYSIOL
JI J. Neurophysiol.
PD SEP
PY 2013
VL 110
IS 5
BP 1167
EP 1179
DI 10.1152/jn.01009.2012
PG 13
WC Neurosciences; Physiology
SC Neurosciences & Neurology; Physiology
GA 213YA
UT WOS:000324095300012
PM 23761699
ER
PT J
AU Connor, BA
Riddle, MS
AF Connor, Bradley A.
Riddle, Mark S.
TI Post-Infectious Sequelae of Travelers' Diarrhea
SO JOURNAL OF TRAVEL MEDICINE
LA English
DT Review
ID IRRITABLE-BOWEL-SYNDROME; GUILLAIN-BARRE-SYNDROME; TRIGGERED REACTIVE
ARTHRITIS; ACUTE IDIOPATHIC NEUROPATHY; MOTOR AXONAL NEUROPATHY; US
MILITARY PERSONNEL; SYNOVIAL-FLUID CELLS; CAMPYLOBACTER INFECTION;
MOLECULAR MIMICRY; SALMONELLA INFECTION
AB Background. Travelers' diarrhea (TD) has generally been considered a self-limited disorder which resolves more quickly with expeditious and appropriate antibiotic therapy given bacteria are the most frequently identified cause. However, epidemiological, clinical, and basic science evidence identifying a number of chronic health conditions related to these infections has recently emerged which challenges this current paradigm. These include serious and potentially disabling enteric and extra-intestinal long-term complications. Among these are rheumatologic, neurologic, gastrointestinal, renal, and endocrine disorders. This review aims to examine and summarize the current literature pertaining to three of these post-infectious disorders: reactive arthritis, Guillain-Barre syndrome, and post-infectious irritable bowel syndrome and the relationship of these conditions to diarrhea associated with travel as well as to diarrhea associated with gastroenteritis which may not be specifically travel related but relevant by shared microbial pathogens. It is hoped this review will allow clinicians who see travelers to be aware of these post-infectious sequelae thus adding to our body of knowledge in travel medicine.
Methods. Data for this article were identified by searches of PubMed and MEDLINE, and references from relevant articles using search terms travelers' diarrhea reactive arthritis Guillain-Barre syndrome Post-Infectious Irritable Bowel Syndrome. Abstracts were included when related to previously published work.
Results and Conclusions. A review of the published literature reveals that potential consequences of travelers' diarrhea may extend beyond the acute illness and these post-infectious complications may be more common than currently recognized. In addition since TD is such a common occurrence it would be helpful to be able to identify those who might be at greater risk of post-infectious sequelae in order to target more aggressive prophylactic or therapeutic approaches to such individuals. It is hoped this review will allow clinicians who see travelers to be aware of these post-infectious sequelae thus adding to our body of knowledge in travel medicine.
C1 [Connor, Bradley A.] Cornell Univ, Weill Med Coll, New York, NY 10021 USA.
[Riddle, Mark S.] USN, Med Res Ctr, Silver Spring, MD USA.
RP Connor, BA (reprint author), Cornell Univ, Weill Med Coll, Div Gastroenterol & Hepatol, 50 East 69th St, New York, NY 10021 USA.
EM bconnor1@gmail.com
RI chen, zhu/K-5923-2013
NR 85
TC 26
Z9 26
U1 0
U2 9
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1195-1982
J9 J TRAVEL MED
JI J. Travel Med.
PD SEP
PY 2013
VL 20
IS 5
BP 303
EP 312
DI 10.1111/jtm.12049
PG 10
WC Medicine, General & Internal
SC General & Internal Medicine
GA 209CN
UT WOS:000323731800007
PM 23992573
ER
PT J
AU Ge, XY
Tim, L
Peng, MS
AF Ge Xu-yang
Tim Li
Peng, Melinda S.
TI TROPICAL CYCLONE GENESIS EFFICIENCY: MID-LEVEL VERSUS BOTTOM VORTEX
SO JOURNAL OF TROPICAL METEOROLOGY
LA English
DT Article
DE tropical cyclone genesis; mid-level vortex; near bottom vortex; genesis
efficiency; cyclogenesis time
ID WESTERN NORTH PACIFIC; WAVE ENERGY DISPERSION; BULK PARAMETERIZATION;
NUMERICAL-SIMULATION; PREEXISTING TYPHOON; JOHNSTOWN FLOOD; NWP SYSTEM;
PART II; CYCLOGENESIS; EVOLUTION
AB Cloud resolving Weather Research and Forecasting (WRF) model simulations are used to investigate tropical cyclone (TC) genesis efficiency in an environment with a near bottom vortex (EBV) and an environment with a mid-level vortex (EMV). Sensitivity experiments show that the genesis timing depends greatly on initial voracity vertical profiles. The larger the initial column integrated absolute voracity, the greater the genesis efficiency is. Given the same column integrated absolute voracity, a bottom vortex has higher genesis efficiency than a mid-level vortex.
A common feature among these experiments is the formation of a mid-level vorticity maximum prior to TC genesis irrespective where the initial vorticity maximum locates. Both the EMV and EBV scenarios share the following development characteristics: 1) a transition from non-organized cumulus-scale (similar to 5 km) convective cells into an organized meso-vortex-scale (similar to 50 to 100 km) system through upscale cascade processes, 2) the establishment of a nearly saturated air column prior to a rapid drop of the central minimum pressure, and 3) a multiple convective-stratiform phase transition.
A genesis efficiency index (GEI) is formulated that includes the following factors: initial column integrated absolute voracity, voracity at top of the boundary layer and vertically integrated relative humidity. The calculated GEI reflects Well the simulated genesis efficiency and thus may be used to estimate how fast a tropical disturbance develops into a TC.
C1 [Ge Xu-yang; Tim Li] Univ Hawaii, Dept Meteorol, Honolulu, HI 96822 USA.
[Ge Xu-yang; Tim Li] Univ Hawaii, Int Pacific Res Ctr, Honolulu, HI 96822 USA.
[Peng, Melinda S.] Naval Res Lab, Monterey, CA USA.
RP Tim, L (reprint author), Univ Hawaii, Dept Meteorol, Honolulu, HI 96822 USA.
EM timli@hawaii.edu
FU Office of Naval Research [N000140810256, N000141010774]; National
Science Foundation of China [41075037]; Japan Agency for Marine-Earth
Science and Technology (JAMSTEC); NASA [NNX07AG53G]; NOAA [NA17RJ1230]
FX Office of Naval Research (N000140810256, N000141010774); National
Science Foundation of China (41075037); Japan Agency for Marine-Earth
Science and Technology (JAMSTEC); NASA (NNX07AG53G); NOAA (NA17RJ1230)
NR 37
TC 4
Z9 5
U1 1
U2 7
PU JOURNAL OF TROPICAL METEOROLOGICAL PRESS
PI GUANGZHOU
PA 6 FU JIN RD, GUANGZHOU, 510080, PEOPLES R CHINA
SN 1006-8775
J9 J TROP METEOROL
JI J. Trop. Meteorol.
PD SEP
PY 2013
VL 19
IS 3
BP 197
EP 213
PG 17
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 220FL
UT WOS:000324567900001
ER
PT J
AU Greer, JA
Northington, GM
Harvie, HS
Segal, S
Johnson, JC
Arya, LA
AF Greer, Joy A.
Northington, Gina M.
Harvie, Heidi S.
Segal, Saya
Johnson, Jerry C.
Arya, Lily A.
TI Functional Status and Postoperative Morbidity in Older Women with
Prolapse
SO JOURNAL OF UROLOGY
LA English
DT Article
DE pelvic floor disorders; prolapse; complications; aged; reconstructive
surgical procedures
ID PELVIC FLOOR DISORDERS; PREOPERATIVE ASSESSMENT; UROGYNECOLOGIC SURGERY;
ORGAN PROLAPSE; US WOMEN; DISABILITY; MORTALITY; VALIDATION; AGE;
COMPLICATIONS
AB Purpose: We determined the relationship of preoperative functional status to postoperative morbidity after pelvic organ prolapse surgery in women older than 60 years.
Materials and Methods: We performed a retrospective cohort study of 223 women older than 60 years who underwent surgery for stage II or greater pelvic organ prolapse. Our exposure was preoperative functional status, defined as American Society of Anesthesiologists (ASA) physical status class. We compared postoperative outcomes (length of stay in a medical facility, and number and severity of postoperative complications) in women with low functional status (ASA class III) to those in women with high functional status (ASA classes I and II). We determined the association of preoperative functional status with postoperative outcomes on multivariate analysis.
Results: Women in ASA class III were significantly likely to be older (mean +/- SD age 72.7 +/- 7.3 vs 68.3 +/- 6.5 years) and of nonwhite ethnicity (36.1% vs 20.1%), have a higher body mass index (mean 29.5 +/- 5.6 vs 26.1 +/- 3.8 kg/m(2)) and worse functional comorbidity score (median 3 vs 2), and have undergone obliterative surgery (33.3% vs 9.1%) than women in ASA classes I and II (each p <0.05). Low preoperative functional status was independently associated with increased length of stay in a medical facility (2.13 days, 95% CI 0.57, 3.70, p <0.01) and postoperative complications (OR 2.17, 95% CI 1.03, 4.56), after adjusting for age, body mass index, nonwhite ethnicity, number of comorbidities, surgeon and type of surgery.
Conclusions: As defined by ASA class, preoperative functional status is significantly associated with postoperative length of stay and complications. Preoperative functional status is useful for predicting postoperative outcomes in older women who undergo pelvic organ prolapse surgery.
C1 Univ Penn, Dept Obstet & Gynecol, Div Urogynecol, Philadelphia, PA 19104 USA.
Univ Penn, Dept Internal Med, Div Geriatr Med, Perelman Sch Med, Philadelphia, PA 19104 USA.
Emory Univ, Sch Med, Div Female Pelv Med & Reconstruct Surg, Dept Gynecol & Obstet, Atlanta, GA USA.
Univ Med & Dent New Jersey, Dept Obstet & Gynecol, New Brunswick, NJ USA.
Univ Med & Dent New Jersey, Dept Surg, New Brunswick, NJ USA.
RP Greer, JA (reprint author), Naval Med Ctr Portsmouth, Div Urogynecol, Dept Obstet & Gynecol, 620 John Paul Jones Circle, Portsmouth, VA 23708 USA.
EM joy.greer@med.navy.mil
NR 24
TC 10
Z9 10
U1 0
U2 8
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 0022-5347
J9 J UROLOGY
JI J. Urol.
PD SEP
PY 2013
VL 190
IS 3
BP 948
EP 952
DI 10.1016/j.juro.2013.03.004
PG 5
WC Urology & Nephrology
SC Urology & Nephrology
GA 216PK
UT WOS:000324295800045
PM 23473899
ER
PT J
AU Susino, R
Bemporad, A
Dolei, S
Vourlidas, A
AF Susino, Roberto
Bemporad, Alessandro
Dolei, Sergio
Vourlidas, Angelos
TI Study of a Coronal Mass Ejection with SOHO/UVCS and STEREO data
SO ADVANCES IN SPACE RESEARCH
LA English
DT Article
DE Corona; Coronal Mass Ejection; UV radiation
ID FLUX ROPES; ULTRAVIOLET; FIELDS; CMES
AB We study the 3-D kinematics of a Coronal Mass Ejection (CME) using data acquired by the LASCO C2 and UVCS instruments on board SOHO, and the COR1 coronagraphs and EUVI telescopes on board STEREO. The event, which occurred on May 20, 2007, was a partial-halo CME associated with a prominence eruption. This is the first CME studied with UVCS data that occurred in the STEREO era. The longitudinal angle between the STEREO spacecrafts was similar to 7.7 degrees at that time, and this allowed us to reconstruct via triangulation technique the 3-D trajectory of the erupting prominence observed by STEREO/EUVI. Information on the 3-D expansion of the CME provided by STEREO/COR1 data have been combined with spectroscopic observations by SOHO/UVCS. First results presented here show that line-of-sight velocities derived from spectroscopic data are not fully in agreement with those previously derived via triangulation technique, thus pointing out possible limitations of this technique. (C) 2013 COSPAR. Published by Elsevier Ltd. All rights reserved.
C1 [Susino, Roberto; Bemporad, Alessandro] INAF Osservatorio Astrofis Torino, I-10025 Pino Torinese, TO, Italy.
[Susino, Roberto; Dolei, Sergio] INAF Osservatorio Astrofis Catania, I-95123 Catania, Italy.
[Vourlidas, Angelos] Naval Res Lab, Div Space Sci, Washington, DC 20375 USA.
RP Susino, R (reprint author), INAF Osservatorio Astrofis Torino, Via Osservatorio 20, I-10025 Pino Torinese, TO, Italy.
EM sur@oact.inaf.it; bemporad@oato.inaf.it
RI Vourlidas, Angelos/C-8231-2009;
OI Vourlidas, Angelos/0000-0002-8164-5948; Susino,
Roberto/0000-0002-1017-7163; Bemporad, Alessandro/0000-0001-5796-5653
FU European Commission [263340]; NASA [S-136361-Y]
FX The research leading to these results has received funding from the
European Commission Seventh Framework Programme (FP7/2007-2013) under
the grant agreement SWIFF (project no. 263340, www.swiff.eu). A.V. is
supported by NASA contract S-136361-Y to the Naval Research Laboratory.
NR 22
TC 1
Z9 1
U1 0
U2 3
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0273-1177
J9 ADV SPACE RES
JI Adv. Space Res.
PD SEP 1
PY 2013
VL 52
IS 5
BP 957
EP 962
DI 10.1016/j.asr.2013.05.017
PG 6
WC Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology &
Atmospheric Sciences
SC Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences
GA 210TN
UT WOS:000323857700016
ER
PT J
AU Jacobs, VL
AF Jacobs, Verne L.
TI Macroscopic descriptions of non-linear electromagnetic interactions in
many-electron systems
SO HIGH ENERGY DENSITY PHYSICS
LA English
DT Article
DE Reduced density matrix; Non-linear electromagnetic response; Coherence;
Pump-probe optical phenomena
ID INDUCED TRANSPARENCY; DENSITY-MATRIX; LIGHT; RELAXATION; RADIATION;
PLASMA
AB Reduced-density-matrix descriptions are developed for linear and non-linear (possibly coherent) electromagnetic interactions of many-electron systems. Applications of interest include pump-probe optical phenomena in warm atomic vapors, partially-ionized plasmas, and condensed matter. Collision processes are treated within the framework of environmental perturbations, giving rise to decoherence and relaxation phenomena, and externally applied magnetic fields are taken into account on an equal footing with the electromagnetic fields. Time-domain (equation-of-motion) and frequency-domain (resolvent-operator) formulations are developed in a unified manner. The standard Born (lowest-order-perturbation) and Markov (short-memory-time) approximations are systematically introduced within the framework of the general non-perturbative and non-Markovian formulations. A preliminary semiclassical perturbation-theory treatment of the electromagnetic interaction is adopted. However, it is emphasized that a quantized-electromagnetic-field approach will be necessary for a fully self-consistent quantum-mechanical formulation. The primary quantities of interest are the linear and the non-linear macroscopic electromagnetic-response tensors. Coherent initial electronic excitations and the full tetradic-matrix form of the Liouville-space self-energy operator representing the environmental interactions in the Markov approximation can incorporated in the expressions for these macroscopic electromagnetic-response tensors. Collisional interactions can be treated in various approximations for the Liouville-space self-energy operator, and the influence of Zeeman coherences on the macroscopic electromagnetic response can be investigated. Published by Elsevier B.V.
C1 Naval Res Lab, Div Mat Sci & Technol, Ctr Computat Mat Sci, Washington, DC 20375 USA.
RP Jacobs, VL (reprint author), Naval Res Lab, Div Mat Sci & Technol, Ctr Computat Mat Sci, Code 6390, Washington, DC 20375 USA.
EM verne.jacobs@nrl.navy.mil
FU Office of Naval Research
FX This work has been supported by the Office of Naval Research.
NR 22
TC 0
Z9 0
U1 0
U2 6
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 SEP
PY 2013
VL 9
IS 3
BP 410
EP 418
DI 10.1016/j.hedp.2013.03.009
PG 9
WC Physics, Fluids & Plasmas
SC Physics
GA 210SP
UT WOS:000323855100006
ER
PT J
AU Pereira, NR
Weber, BV
Phipps, DG
Schumer, JW
Seely, JF
Carroll, JJ
Vanhoy, JR
Slabkowska, K
Polasik, M
Szymanska, E
Rzadkiewicz, J
AF Pereira, Nino R.
Weber, B. V.
Phipps, D. G.
Schumer, J. W.
Seely, J. F.
Carroll, J. J.
Vanhoy, J. R.
Slabkowska, K.
Polasik, M.
Szymanska, E.
Rzadkiewicz, J.
TI High-resolution (similar to 0.05%) red shift of a similar to 60 keV K
beta line upon ionization
SO HIGH ENERGY DENSITY PHYSICS
LA English
DT Article
DE High-resolution spectroscopy; Plasma diagnostics; K-Edges
ID PLASMA; POWER
AB A recent measurement [1] demonstrates that iridium's K alpha(2)-line, centered at similar or equal to 63286.96 eV for a cold atom, increases similar or equal to+10 eV in energy when it is emitted by a modestly (similar to 17x) ionized plasma. This measurement, enabled by a near-coincident lutetium K-edge filter, agrees well with atomic physics computations. Not understood at the time was a similar measurement with a thulium filter at the similar or equal to 59370 eV energy of ytterbium's K beta(1) line, which indicated that its photon energy decreases with ionization. The computation reported here shows that the ionization energy shift for Yb's K beta lines is indeed negative and agrees qualitatively with the measurements. For the K-lines the ionization energy shift may be most interesting in atomic physics, while for the L-lines the ionization energy shift is a promising plasma diagnostic [2]. (C) 2013 Elsevier B.V. All rights reserved.
C1 [Pereira, Nino R.] Ecopulse Inc, Springfield, VA 22152 USA.
[Weber, B. V.; Phipps, D. G.; Schumer, J. W.] Naval Res Lab, Washington, DC 20375 USA.
[Seely, J. F.] Artep Inc, Ellicott City, MD 21042 USA.
[Carroll, J. J.] Army Res Lab, Adelphi, MD 20783 USA.
[Vanhoy, J. R.] US Naval Acad, Annapolis, MD 21402 USA.
[Slabkowska, K.; Polasik, M.; Szymanska, E.] Nicholas Copernicus Univ, Fac Chem, PL-87100 Torun, Poland.
[Rzadkiewicz, J.] Natl Ctr Nucl Studies, PL-01497 Warsaw, Poland.
RP Pereira, NR (reprint author), Ecopulse Inc, Springfield, VA 22152 USA.
EM ninorpereira@gmail.com
RI Slabkowska, katarzyna/O-8760-2015
FU DTRA through ARL [W911QX09D0016]; DTRAs Basic-Research-Sciences MIPR
[08-2468, MIPR 09-2156]; NRL; Polish National Science Centre
[2011/01/D/ST2/01286]
FX This work was supported by DTRA through ARL contract W911QX09D0016 to
Ecopulse, DTRAs Basic-Research-Sciences MIPR 08-2468 and MIPR 09-2156
with NRL, and the Polish National Science Centre under grant no.
2011/01/D/ST2/01286.
NR 18
TC 6
Z9 6
U1 1
U2 9
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 SEP
PY 2013
VL 9
IS 3
BP 500
EP 504
DI 10.1016/j.hedp.2013.03.011
PG 5
WC Physics, Fluids & Plasmas
SC Physics
GA 210SP
UT WOS:000323855100020
ER
PT J
AU Antonsen, TM
Vlasov, AN
Chernin, DP
Chernyavskiy, IA
Levush, B
AF Antonsen, Thomas M., Jr.
Vlasov, Alexander N.
Chernin, David P.
Chernyavskiy, Igor A.
Levush, Baruch
TI Transmission Line Model for Folded Waveguide Circuits
SO IEEE TRANSACTIONS ON ELECTRON DEVICES
LA English
DT Article
DE Coupling impedance; dispersion; folded waveguide (FW); serpentine
waveguide (SW); traveling wave tube (TWT)
ID EQUIVALENT-CIRCUIT; HIGH-POWER; TUBE; RADIATION; TWTS
AB We describe an equivalent circuit model for traveling wave structures based on folded or serpentine waveguides (F/SWs), including a beam tunnel. The model consists of a combination of transmission line segments and lumped electrical elements. Values of the five parameters that characterize the model are found by minimizing the differences between the dispersion and coupling impedance as calculated by the model and those obtained from a 3-D finite element code. We find that the model reproduces the dispersion to better than 0.1% and the coupling impedance to better than 1% over a broad frequency range in different examples in which the dependence of the impedance on frequency tends either to zero or to infinity near the band edge at 2 pi. The model is also able to capture the effects of asymmetric fields and misalignment of the beam tunnel. We conclude that the model can be used with confidence in codes that simulate the beam-wave interaction in FW and SW traveling wave tubes.
C1 [Antonsen, Thomas M., Jr.; Chernin, David P.] Sci Applicat Int Corp, Mclean, VA 22102 USA.
[Vlasov, Alexander N.; Chernyavskiy, Igor A.; Levush, Baruch] US Naval Res Lab, Washington, DC 20375 USA.
RP Antonsen, TM (reprint author), Sci Applicat Int Corp, Mclean, VA 22102 USA.
EM antonsen@glue.umd.edu; alexander.vlasov@nrl.navy.mil;
david.p.chernin@saic.com; igor.chernyavskiy@nrl.navy.mil;
baruch.levush@nrl.navy.mil
RI Antonsen, Thomas/D-8791-2017
OI Antonsen, Thomas/0000-0002-2362-2430
FU U.S. Office of Naval Research
FX This work was supported by the U.S. Office of Naval Research.
NR 25
TC 16
Z9 17
U1 1
U2 11
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0018-9383
J9 IEEE T ELECTRON DEV
JI IEEE Trans. Electron Devices
PD SEP
PY 2013
VL 60
IS 9
BP 2906
EP 2911
DI 10.1109/TED.2013.2272659
PG 6
WC Engineering, Electrical & Electronic; Physics, Applied
SC Engineering; Physics
GA 207YI
UT WOS:000323640300030
ER
PT J
AU Lewis, AC
Wright, S
AF Lewis, Alexis C.
Wright, Stuart
TI Advanced Electron Backscatter Diffraction Applications and Techniques
SO JOM
LA English
DT Editorial Material
C1 [Lewis, Alexis C.] Naval Res Lab, Washington, DC 20375 USA.
[Wright, Stuart] EDAX, Draper, UT 84020 USA.
RP Lewis, AC (reprint author), Naval Res Lab, Washington, DC 20375 USA.
EM alexis.lewis@nrl.navy.mil; stuart.wright@ametek.com
NR 0
TC 0
Z9 0
U1 0
U2 9
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1047-4838
J9 JOM-US
JI JOM
PD SEP
PY 2013
VL 65
IS 9
BP 1221
EP 1221
DI 10.1007/s11837-013-0686-0
PG 1
WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical
Engineering; Mineralogy; Mining & Mineral Processing
SC Materials Science; Metallurgy & Metallurgical Engineering; Mineralogy;
Mining & Mineral Processing
GA 207SF
UT WOS:000323623400021
ER
PT J
AU Schutte, CA
Hunter, K
Mckay, P
Di Iorio, D
Joye, SB
Meile, C
AF Schutte, Charles A.
Hunter, Kimberley
Mckay, Paul
Di Iorio, Daniela
Joye, Samantha B.
Meile, Christof
TI Patterns and Controls of Nutrient Concentrations in a Southeastern
United States Tidal Creek
SO OCEANOGRAPHY
LA English
DT Article
ID DISSOLVED ORGANIC-CARBON; SALT-MARSH ESTUARY; NITROGEN; EXPORT;
PHOSPHORUS; LIMITATION; DISCHARGE; SEDIMENT; ZONES
AB Terrestrial inputs largely govern nutrient delivery to the coastal ocean, and subsequent processes transform these nutrients in the land-ocean transition zone. Here, we describe spatial and temporal patterns in surface water chemistry from the Duplin, a salt marsh/tidal creek system located in coastal Georgia, USA. Key drivers of nutrient concentration patterns in the Duplin include discharge from the nearby Altamaha River, groundwater inputs, exchange with the marsh platform, and biological processes within the tidal creek. Altamaha River discharge is correlated with salinity in the Duplin, but the processes taking place within the Duplin watershed regulate the distribution of other dissolved and particulate materials. Long-term data sets advance our understanding of the relative importance of these processes in generating the observed patterns in surface water chemistry. This knowledge improves our ability to predict how coastal systems will respond to anthropogenic perturbations.
C1 [Schutte, Charles A.; Hunter, Kimberley; Di Iorio, Daniela; Joye, Samantha B.; Meile, Christof] Univ Georgia, Athens, GA 30602 USA.
[Mckay, Paul] Stennis Space Ctr, Naval Res Lab, Stennis Space Ctr, MS USA.
RP Schutte, CA (reprint author), Univ Georgia, Athens, GA 30602 USA.
EM mjoye@uga.edu; cmeile@uga.edu
OI Schutte, Charles/0000-0002-3907-7828; Meile,
Christof/0000-0002-0825-4596; Joye, Samantha/0000-0003-1610-451X
FU NSF [OCE 99-82133, OCE 06-20959, OCE 12-37140]
FX We thank the GCE LTER technicians (D. Saucedo, J. Shalack, C. Reddy, A.
Nix) for Duplin sample collection, W. Porubsky and N. Weston for
groundwater sampling, and W Sheldon for database maintenance. This study
was supported by the NSF funded Georgia Coastal Ecosystems Long Term
Ecological Research program (OCE 99-82133, OCE 06-20959, and OCE
12-37140) to S.B.J., C.M. and D.D.
NR 35
TC 1
Z9 1
U1 4
U2 30
PU OCEANOGRAPHY SOC
PI ROCKVILLE
PA P.O. BOX 1931, ROCKVILLE, MD USA
SN 1042-8275
J9 OCEANOGRAPHY
JI Oceanography
PD SEP
PY 2013
VL 26
IS 3
SI SI
BP 132
EP 139
PG 8
WC Oceanography
SC Oceanography
GA 210DD
UT WOS:000323808600019
ER
PT J
AU Hu, JJ
Meyer, J
Richardson, K
Shah, L
AF Hu, Juejun
Meyer, Jerry
Richardson, Kathleen
Shah, Lawrence
TI Feature issue introduction: mid-IR photonic materials
SO OPTICAL MATERIALS EXPRESS
LA English
DT Article
ID MIDINFRARED SUPERCONTINUUM GENERATION; CHALCOGENIDE GLASS; CASCADE
LASERS; RESONATORS; FIBER
AB The mid-infrared (mid-IR, 2.5 to 10 mu m wavelengths) is a strategically important spectral band for an array of applications such as thermal imaging, chem/bio sensing, spectroscopy, infrared countermeasures, and free space communications. Mid-IR photonics have emerged as an active area of investigation in recent years, largely spurred by the rapid progress of cascade laser sources, uncooled detectors, and specialty mid-IR optical fibers. The 26 papers of this feature issue focus on the leading enabling material technologies for mid-IR photonics, and encompass recent advances in both active (lasers and detectors) and passive (fibers and waveguides) components. Linear and nonlinear photon-matter interactions in the mid-IR are also covered. (c) 2013 Optical Society of America
C1 [Hu, Juejun] Univ Delaware, Dept Mat Sci & Engn, Newark, DE 19716 USA.
[Meyer, Jerry] Naval Res Lab, Washington, DC 20375 USA.
[Richardson, Kathleen; Shah, Lawrence] Univ Cent Florida, CREOL, Coll Opt & Photon, Orlando, FL 32816 USA.
RP Hu, JJ (reprint author), Univ Delaware, Dept Mat Sci & Engn, Newark, DE 19716 USA.
EM hujuejun@udel.edu
RI Shah, Lawrence/F-4462-2014; Richardson, Kathleen/A-6012-2011
OI Shah, Lawrence/0000-0002-0462-5089;
NR 44
TC 21
Z9 21
U1 3
U2 56
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 SEP 1
PY 2013
VL 3
IS 9
BP 1571
EP 1575
DI 10.1364/OME.3.001571
PG 5
WC Materials Science, Multidisciplinary; Optics
SC Materials Science; Optics
GA 211XH
UT WOS:000323944700037
ER
PT J
AU Mason, BD
Hartkopf, WI
Hurowitz, HM
AF Mason, Brian D.
Hartkopf, William I.
Hurowitz, Haley M.
TI SPECKLE INTERFEROMETRY AT THE U.S. NAVAL OBSERVATORY. XIX
SO ASTRONOMICAL JOURNAL
LA English
DT Article
DE binaries: general; binaries: visual
ID BINARY STAR ORBITS; VISUAL BINARIES; CD-ROM; SYSTEM; MASSES; HIPPARCOS;
ELEMENTS; CATALOG; PAIRS
AB The results of 2916 intensified CCD observations of double stars, made with the 26 inch refractor of the U. S. Naval Observatory, are presented. Each observation of a system represents a combination of over two thousand short-exposure images. These observations are averaged into 1584 mean relative positions and range in separation from 0 ''.54 to 98 ''.09, with a median separation of 11 ''.73. This is the 19th in this series of papers and covers the period 2012 January 5 through 2012 December 18. Also presented are 10 pairs that are reported for the first time, 17 pairs that appear to be lost, linear elements for 18 pairs, and orbital elements for 2 additional pairs.
C1 [Mason, Brian D.; Hartkopf, William I.; Hurowitz, Haley M.] USN Observ, Washington, DC 20392 USA.
RP Mason, BD (reprint author), USN Observ, 3450 Massachusetts Ave,NW, Washington, DC 20392 USA.
EM bdm@usno.navy.mil; wih@usno.navy.mil; hurowitz@mit.edu
NR 64
TC 5
Z9 5
U1 0
U2 3
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0004-6256
J9 ASTRON J
JI Astron. J.
PD SEP
PY 2013
VL 146
IS 3
AR 56
DI 10.1088/0004-6256/146/3/56
PG 9
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 203OO
UT WOS:000323302700013
ER
PT J
AU Hainline, LJ
Morgan, CW
MacLeod, CL
Landaal, ZD
Kochanek, CS
Harris, HC
Tilleman, T
Goicoechea, LJ
Shalyapin, VN
Falco, EE
AF Hainline, Laura J.
Morgan, Christopher W.
MacLeod, Chelsea L.
Landaal, Zachary D.
Kochanek, C. S.
Harris, Hugh C.
Tilleman, Trudy
Goicoechea, L. J.
Shalyapin, V. N.
Falco, Emilio E.
TI TIME DELAY AND ACCRETION DISK SIZE MEASUREMENTS IN THE LENSED QUASAR SBS
0909+532 FROM MULTIWAVELENGTH MICROLENSING ANALYSIS
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE accretion, accretion disks; gravitational lensing: micro; gravitational
lensing: strong; quasars: individual (SBS 0909+532)
ID DARK-MATTER HALOS; GRAVITATIONAL LENS; X-RAY; EMISSION REGIONS; LIGHT
CURVES; GALAXY; DECONVOLUTION; VARIABILITY; SYSTEMS; SAMPLE
AB We present three complete seasons and two half-seasons of Sloan Digital Sky Survey (SDSS) r-band photometry of the gravitationally lensed quasar SBS 0909+532 from the U. S. Naval Observatory, as well as two seasons each of SDSS g-band and r-band monitoring from the Liverpool Robotic Telescope. Using Monte Carlo simulations to simultaneously measure the system's time delay and model the r-band microlensing variability, we confirm and significantly refine the precision of the system's time delay to Delta t(AB) = 50(-4)(+2) days, where the stated uncertainties represent the bounds of the formal 1 sigma confidence interval. There may be a conflict between the time delay measurement and a lens consisting of a single galaxy. While models based on the Hubble Space Telescope astrometry and a relatively compact stellar distribution can reproduce the observed delay, the models have somewhat less dark matter than we would typically expect. We also carry out a joint analysis of the microlensing variability in the r and g bands to constrain the size of the quasar's continuum source at these wavelengths, obtaining log{(r(s,r)/cm)[cos i/0.5](1/2)} = 15.3 +/- 0.3 and log{(r(s,g)/cm)[cos i/0.5](1/2)} = 14.8 +/- 0.9, respectively. Our current results do not formally constrain the temperature profile of the accretion disk but are consistent with the expectations of standard thin disk theory.
C1 [Hainline, Laura J.; Morgan, Christopher W.; MacLeod, Chelsea L.; Landaal, Zachary D.] US Naval Acad, Dept Phys, Annapolis, MD 21402 USA.
[Kochanek, C. S.] Ohio State Univ, Dept Astron, Columbus, OH 43210 USA.
[Harris, Hugh C.; Tilleman, Trudy] US Naval Observ, Flagstaff Stn, Flagstaff, AZ 86001 USA.
[Goicoechea, L. J.; Shalyapin, V. N.] Univ Cantabria, Fac Ciencias, E-39005 Santander, Spain.
[Shalyapin, V. N.] Natl Acad Sci Ukraine, Inst Radiophys & Elect, UA-61085 Kharkov, Ukraine.
[Falco, Emilio E.] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA.
RP Hainline, LJ (reprint author), US Naval Acad, Dept Phys, 572C Holloway Rd, Annapolis, MD 21402 USA.
EM hainline@usna.edu; cmorgan@usna.edu; macleod@usna.edu; m123894@usna.edu;
ckochanek@astronomy.ohio-state.edu; hch@nofs.navy.mil;
trudy@nofs.navy.mil; goicol@unican.es; vshal@ukr.net;
falco@cfa.harvard.edu
FU National Science Foundation [AST-0907848, AST-1211146, AST-1009756];
Research Corporation for Science Advancement; Chandrasekhar X-Ray Center
[11700501]; UK Science and Technology Facilities Council; Spanish
Department of Science and Innovation [AYA2010-21741-C03-03]; University
of Cantabria
FX This material is based upon work supported by the National Science
Foundation under grant Nos. AST-0907848 and AST-1211146 (to C. W. M.),
and AST-1009756 (to C. S. K.). C.W.M. also gratefully acknowledges
support from the Research Corporation for Science Advancement and
Chandrasekhar X-Ray Center award 11700501. The Liverpool Telescope is
operated on the island of La Palma by Liverpool John Moores University
in the Spanish Observatorio del Roque de los Muchachos of the Instituto
de Astrofisica de Canarias with financial support from the UK Science
and Technology Facilities Council. The Liverpool Quasar Lens Monitoring
(LQLM) program is supported by the Spanish Department of Science and
Innovation grant AYA2010-21741-C03-03 (Gravitational LENses and DArk
MAtter - GLENDAMA project), and the University of Cantabria.
NR 40
TC 10
Z9 10
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 SEP 1
PY 2013
VL 774
IS 1
AR 69
DI 10.1088/0004-637X/774/1/69
PG 11
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 205FA
UT WOS:000323426700069
ER
PT J
AU Denning, PJ
AF Denning, Peter J.
TI The Other Side of Language
SO COMMUNICATIONS OF THE ACM
LA English
DT Editorial Material
C1 [Denning, Peter J.] Naval Postgrad Sch, Monterey, CA USA.
[Denning, Peter J.] Naval Postgrad Sch, Cebrowski Inst Informat Innovat, Monterey, CA USA.
RP Denning, PJ (reprint author), Naval Postgrad Sch, Monterey, CA USA.
EM pjd@nps.edu
NR 4
TC 0
Z9 0
U1 0
U2 3
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 SEP
PY 2013
VL 56
IS 9
BP 35
EP 37
DI 10.1145/2500132
PG 3
WC Computer Science, Hardware & Architecture; Computer Science, Software
Engineering; Computer Science, Theory & Methods
SC Computer Science
GA 208AG
UT WOS:000323646400017
ER
PT J
AU Gingeras, R
AF Gingeras, Ryan
TI Istanbul Confidential: Heroin, Espionage, and Politics in Cold War
Turkey, 1945-1960
SO DIPLOMATIC HISTORY
LA English
DT Article
ID SHANGHAI
C1 Naval Postgrad Sch Monterey, Dept Natl Secur Affairs, Monterey, CA USA.
RP Gingeras, R (reprint author), Naval Postgrad Sch Monterey, Dept Natl Secur Affairs, Monterey, CA USA.
NR 114
TC 0
Z9 0
U1 0
U2 4
PU OXFORD UNIV PRESS
PI OXFORD
PA GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
SN 0145-2096
J9 DIPLOMATIC HIST
JI Dipl. Hist.
PD SEP
PY 2013
VL 37
IS 4
BP 779
EP 806
DI 10.1093/dh/dht057
PG 28
WC History
SC History
GA 206OM
UT WOS:000323532000006
ER
PT J
AU Mungan, CE
Lipscombe, TC
AF Mungan, Carl E.
Lipscombe, Trevor C.
TI Oscillations of a quadratically damped pendulum
SO EUROPEAN JOURNAL OF PHYSICS
LA English
DT Article
ID DIGITAL PENDULUM; DRAG; SPEED; BALL
AB A physical pendulum consisting of a circular disk at the end of a thin metal rod is connected to a low-friction rotary motion sensor, so that its angular position and velocity can be accurately measured. The disk can be oriented either perpendicular or parallel to the plane of swing to give significant or negligible air drag, respectively. The motion is analytically modeled in phase space. A quadratic dependence of the damping torque on the angular velocity fits the results. This laboratory experiment is suitable for undergraduate physics majors taking a first or second course in classical mechanics.
C1 [Mungan, Carl E.] US Naval Acad, Dept Phys, Annapolis, MD 21402 USA.
[Lipscombe, Trevor C.] Catholic Univ Amer Press, Washington, DC 20064 USA.
RP Mungan, CE (reprint author), US Naval Acad, Dept Phys, Annapolis, MD 21402 USA.
EM mungan@usna.edu; lipscombe@cua.edu
NR 18
TC 2
Z9 2
U1 0
U2 4
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0143-0807
J9 EUR J PHYS
JI Eur. J. Phys.
PD SEP
PY 2013
VL 34
IS 5
BP 1243
EP 1253
DI 10.1088/0143-0807/34/5/1243
PG 11
WC Education, Scientific Disciplines; Physics, Multidisciplinary
SC Education & Educational Research; Physics
GA 206KD
UT WOS:000323518600016
ER
PT J
AU Lambrakos, SG
AF Lambrakos, S. G.
TI Inverse Thermal Analysis of Refractory Metal Laser Welds
SO JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
LA English
DT Article
DE joining; modeling processes; refractory metals
ID ALGORITHM
AB Case study inverse thermal analyses of Vanadium and Tantalum laser welds are presented. These analyses employ a methodology that is in terms of analytic basis functions for inverse thermal analysis of steady-state energy deposition in plate structures. The results of the case studies presented provide parametric representations of weld temperature histories that can be adopted as input data to various types of computational procedures, such as those for prediction of solid-state phase transformations. In addition, these temperature histories can be used to construct parametric-function representations for inverse thermal analysis of welds corresponding to other process parameters or welding processes process conditions of which fall within similar regimes. This study also discusses specific aspects the inverse-analysis methodology relevant to further development of algorithms for its application in practice.
C1 Naval Res Lab, Ctr Computat Mat, Mat Sci & Technol Div, Washington, DC 20375 USA.
RP Lambrakos, SG (reprint author), Naval Res Lab, Ctr Computat Mat, Mat Sci & Technol Div, Code 6390, Washington, DC 20375 USA.
EM samuel.lambrakos@nrl.navy.mil
FU Naval Research Laboratory (NRL) internal core program
FX This study was supported by a Naval Research Laboratory (NRL) internal
core program.
NR 18
TC 0
Z9 0
U1 1
U2 12
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 SEP
PY 2013
VL 22
IS 9
BP 2467
EP 2476
DI 10.1007/s11665-013-0571-6
PG 10
WC Materials Science, Multidisciplinary
SC Materials Science
GA 205EM
UT WOS:000323425100005
ER
PT J
AU Taylor, JE
Pacheco, MA
Bacon, DJ
Beg, MA
Machado, RL
Fairhurst, RM
Herrera, S
Kim, JY
Menard, D
Povoa, MM
Villegas, L
Mulyanto
Snounou, G
Cui, LW
Zeyrek, FY
Escalante, AA
AF Taylor, Jesse E.
Pacheco, M. Andreina
Bacon, David J.
Beg, Mohammad A.
Machado, Ricardo Luiz
Fairhurst, Rick M.
Herrera, Socrates
Kim, Jung-Yeon
Menard, Didier
Povoa, Marinete Marins
Villegas, Leopoldo
Mulyanto
Snounou, Georges
Cui, Liwang
Zeyrek, Fadile Yildiz
Escalante, Ananias A.
TI The Evolutionary History of Plasmodium vivax as Inferred from
Mitochondrial Genomes: Parasite Genetic Diversity in the Americas
SO MOLECULAR BIOLOGY AND EVOLUTION
LA English
DT Article
DE molecular clock; population structure; demographic history
ID HUMAN MALARIA PARASITE; ANCIENT POPULATION EXPANSION; DNA POLYMORPHISM
DATA; SOUTH-AMERICA; FALCIPARUM; ORIGIN; AMAZON; ASIA; ELIMINATION;
HUMANS
AB Plasmodium vivax is the most prevalent human malaria parasite in the Americas. Previous studies have contrasted the genetic diversity of parasite populations in the Americas with those in Asia and Oceania, concluding that New World populations exhibit low genetic diversity consistent with a recent introduction. Here we used an expanded sample of complete mitochondrial genome sequences to investigate the diversity of P. vivax in the Americas as well as in other continental populations. We show that the diversity of P. vivax in the Americas is comparable to that in Asia and Oceania, and we identify several divergent clades circulating in South America that may have resulted from independent introductions. In particular, we show that several haplotypes sampled in Venezuela and northeastern Brazil belong to a clade that diverged from the other P. vivax lineages at least 30,000 years ago, albeit not necessarily in the Americas. We propose that, unlike in Asia where human migration increases local genetic diversity, the combined effects of the geographical structure and the low incidence of vivax malaria in the Americas has resulted in patterns of low local but high regional genetic diversity. This could explain previous views that P. vivax in the Americas has low genetic diversity because these were based on studies carried out in limited areas. Further elucidation of the complex geographical pattern of P. vivax variation will be important both for diversity assessments of genes encoding candidate vaccine antigens and in the formulation of control and surveillance measures aimed at malaria elimination.
C1 [Taylor, Jesse E.; Pacheco, M. Andreina; Escalante, Ananias A.] Arizona State Univ, Biodesign Inst, Ctr Evolutionary Med & Informat, Tempe, AZ 85287 USA.
[Bacon, David J.] Naval Res Lab, Washington, DC USA.
[Beg, Mohammad A.] Aga Khan Univ, Dept Pathol & Microbiol, Karachi, Pakistan.
[Machado, Ricardo Luiz] Fac Med Sao Jose do Rio Preto, Ctr Invest Microrganismos, Dept Doencas Dermatol Infecciosas & Parasitarias, Sao Paulo, Brazil.
[Fairhurst, Rick M.] NIAID, Lab Malaria & Vector Res, NIH, Rockville, MD USA.
[Herrera, Socrates] Univ Valle, Caucaseco Sci Res Ctr, Inst Immunol, Cali, Colombia.
[Kim, Jung-Yeon] Korea Ctr Dis Control & Prevent, Div Malaria & Parasit Dis, Osong, South Korea.
[Menard, Didier] Inst Pasteur Cambodge, Phnom Penh, Cambodia.
[Povoa, Marinete Marins] Evandro Chagas Inst, Belem, Para, Brazil.
[Villegas, Leopoldo] ICF Int, Int Hlth & Dev Div, Calverton, MD USA.
[Mulyanto] Univ Mataram, Fac Med, Immunobiol Lab, Mataram, Indonesia.
[Snounou, Georges] Univ Paris 06, Paris, France.
[Snounou, Georges] INSERM, Paris, France.
[Cui, Liwang] Penn State Univ, Dept Entomol, University Pk, PA 16802 USA.
[Zeyrek, Fadile Yildiz] Harran Univ, Sch Med, Dept Microbiol, Sanliurfa, Turkey.
[Escalante, Ananias A.] Arizona State Univ, Sch Life Sci, Tempe, AZ 85287 USA.
RP Escalante, AA (reprint author), Arizona State Univ, Biodesign Inst, Ctr Evolutionary Med & Informat, Tempe, AZ 85287 USA.
EM Ananias.Escalante@asu.edu
RI Menard, Didier/O-3294-2013; Dantas Machado, Ricardo Luiz/P-1288-2014
OI Menard, Didier/0000-0003-1357-4495; Dantas Machado, Ricardo
Luiz/0000-0002-8955-3204
FU US National Institutes of Health [R01 GM080586]; Latin American Center
for Malaria Research and Control [U19AI089702]; National Institute of
Allergy and Infectious Diseases
FX The authors thank the DNA laboratory at the School of Life Sciences for
their technical support. This work was supported by the US National
Institutes of Health (R01 GM080586 to A.A.E., the Latin American Center
for Malaria Research and Control U19AI089702, and the Intramural
Research Program of the National Institute of Allergy and Infectious
Diseases to R.M.F.). The content of this article is solely the
responsibility of the authors and does not represent the views of the US
National Institutes of Health.
NR 61
TC 32
Z9 32
U1 1
U2 33
PU OXFORD UNIV PRESS
PI OXFORD
PA GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
SN 0737-4038
EI 1537-1719
J9 MOL BIOL EVOL
JI Mol. Biol. Evol.
PD SEP
PY 2013
VL 30
IS 9
BP 2050
EP 2064
DI 10.1093/molbev/mst104
PG 15
WC Biochemistry & Molecular Biology; Evolutionary Biology; Genetics &
Heredity
SC Biochemistry & Molecular Biology; Evolutionary Biology; Genetics &
Heredity
GA 207QE
UT WOS:000323616600006
PM 23733143
ER
PT J
AU Rainwater, S
Hunt, B
AF Rainwater, Sabrina
Hunt, Brian
TI Mixed-Resolution Ensemble Data Assimilation
SO MONTHLY WEATHER REVIEW
LA English
DT Article
DE Kalman filters; Ensembles; Data assimilation
ID TRANSFORM KALMAN FILTER; EFFICIENT DATA ASSIMILATION; THEORETICAL
ASPECTS; PREDICTION SYSTEM; ECMWF; IMPLEMENTATION; INTERPOLATION;
LOCALIZATION; FORECASTS; MODEL
AB Ensemble Kalman filters perform data assimilation by forming a background covariance matrix from an ensemble forecast. Most of the literature on ensemble Kalman filters assumes that all ensemble members come from the same model. This article presents and tests a modified local ensemble transform Kalman filter (LETKF) that takes its background covariance from a combination of a high-resolution ensemble and a low-resolution ensemble. The computational time and the accuracy of this mixed-resolution LETKF are explored and compared to the standard LETKF on a high-resolution ensemble, using simulated observation experiments with the Lorenz models II and III (more complex versions of the Lorenz-96 model). In a variety of scenarios, mixed-resolution analysis can obtain higher accuracy with similar computation time (or similar accuracy with a reduced computation time) compared to single-resolution analysis.
C1 [Rainwater, Sabrina; Hunt, Brian] Univ Maryland, College Pk, MD 20742 USA.
RP Rainwater, S (reprint author), Naval Res Lab, Marine Meteorol Div, Monterey, CA 93943 USA.
EM sabrina.rainwater.ctr@nrlmry.navy.mil
FU ONR [N000141010557, N000141210785]
FX We thank C. Bishop and the anonymous reviewers for many constructive
comments. This research was partially supported by ONR Grants
N000141010557 and N000141210785.
NR 34
TC 9
Z9 9
U1 1
U2 12
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 SEP
PY 2013
VL 141
IS 9
BP 3007
EP 3021
DI 10.1175/MWR-D-12-00234.1
PG 15
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 208CZ
UT WOS:000323655400004
ER
PT J
AU Jangveladze, T
Kiguradze, Z
Neta, B
Reich, S
AF Jangveladze, Temur
Kiguradze, Zurab
Neta, Beny
Reich, Simeon
TI Finite element approximations of a nonlinear diffusion model with memory
SO NUMERICAL ALGORITHMS
LA English
DT Article
DE System of nonlinear integro-differential equations; Finite element
scheme
ID INTEGRODIFFERENTIAL SYSTEM; EQUATIONS
AB The convergence of a finite element scheme approximating a nonlinear system of integro-differential equations is proven. This system arises in mathematical modeling of the process of a magnetic field penetrating into a substance. Properties of existence, uniqueness and asymptotic behavior of the solutions are briefly described. The decay of the numerical solution is compared with both the theoretical and finite difference results.
C1 [Jangveladze, Temur; Kiguradze, Zurab] Ivane Javakhishvili Tbilisi State Univ, Ilia Vekua Inst Appl Math, GE-0186 Tbilisi, Rep of Georgia.
[Jangveladze, Temur; Kiguradze, Zurab] Ivane Javakhishvili Tbilisi State Univ, Fac Exact & Nat Sci, GE-0179 Tbilisi, Rep of Georgia.
[Jangveladze, Temur] Caucasus Univ, GE-0175 Tbilisi, Rep of Georgia.
[Neta, Beny] Naval Postgrad Sch, Dept Appl Math, Monterey, CA 93943 USA.
[Reich, Simeon] Technion Israel Inst Technol, Dept Math, IL-32000 Haifa, Israel.
RP Neta, B (reprint author), Naval Postgrad Sch, Dept Appl Math, Monterey, CA 93943 USA.
EM bneta@nps.edu
OI Neta, Beny/0000-0002-7417-7496
NR 23
TC 3
Z9 3
U1 0
U2 2
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 1017-1398
J9 NUMER ALGORITHMS
JI Numer. Algorithms
PD SEP
PY 2013
VL 64
IS 1
BP 127
EP 155
DI 10.1007/s11075-012-9658-7
PG 29
WC Mathematics, Applied
SC Mathematics
GA 204CU
UT WOS:000323343400007
ER
PT J
AU Smith, TA
Chen, S
Campbell, T
Martin, P
Rogers, WE
Gabersek, S
Wang, D
Carroll, S
Allard, R
AF Smith, Travis A.
Chen, Sue
Campbell, Timothy
Martin, Paul
Rogers, W. Erick
Gabersek, Sasa
Wang, David
Carroll, Suzanne
Allard, Richard
TI Ocean-wave coupled modeling in COAMPS-TC: A study of Hurricane Ivan
(2004)
SO OCEAN MODELLING
LA English
DT Article
DE COAMPS-TC; Ocean-wave coupling; Tropical cyclone; Hurricane Ivan;
Stokes' drift current
ID SEA MOMENTUM EXCHANGE; TROPICAL CYCLONE; LANGMUIR TURBULENCE; DRAG
COEFFICIENT; SURFACE-WAVES; MIXED-LAYER; PART II; SOURCE TERMS;
WIND-STRESS; DISSIPATION
AB Tropical cyclone ocean-wave model interactions are examined using an ESMF - (Earth System Modeling Framework) based tropical cyclone (TC) version of the Coupled Ocean/Atmosphere Mesoscale Prediction System (COAMPS (R)(1)). This study investigates Hurricane Ivan, which traversed the Gulf of Mexico (GOM) in September 2004. Several oceanic and wave observational data sets, including Acoustic Doppler Current Pro-filers (ADCPs), National Oceanic and Atmospheric Administration (NOAA) buoys, satellite altimeter data, and Scanning Radar Altimeter (SRA) data, allow for a unique analysis of the coupled atmosphere, ocean (Navy Coastal Ocean Model, NCOM), and wave (Simulating WAves Nearshore, SWAN) models in COAMPS-TC. To determine the feasibility of coupling NCOM to SWAN in high-wind conditions during Hurricane Ivan, near-surface currents in NCOM were first compared to near-surface ADCP observations. Recent modifications to SWAN, including new wind-to-wave energy input and wave-breaking energy dissipation source functions, as well as a new ocean surface drag coefficient formulation appropriate for high-wind conditions, significantly improved the forecast wave field properties, such as significant wave height (SWH), in TC conditions. Further results show that the ocean-to-wave model coupling, which allows for the strong, hurricane-induced, surface currents in NCOM to interact with SWAN, provided additional improvements to the forecast SWH field. Additionally, wave-to-ocean model coupling, which included the input of the Stokes Drift Current (SDC) calculated from the SWAN wave spectra to NCOM, is examined. The models indicate that the SDC was on the order of 10-25% of the near-surface Eulerian current during Ivan. Recent studies of the importance of the SDC and the resulting Langmuir turbulence on vertical ocean mixing in TCs is also discussed. Published by Elsevier Ltd.
C1 [Smith, Travis A.; Campbell, Timothy; Martin, Paul; Rogers, W. Erick; Wang, David; Allard, Richard] Naval Res Lab, Stennis Space Ctr, MS 39529 USA.
[Chen, Sue; Gabersek, Sasa] Naval Res Lab, Monterey, CA 93943 USA.
[Carroll, Suzanne] QinetiQ North Amer, Stennis Space Ctr, MS 39529 USA.
RP Smith, TA (reprint author), Naval Res Lab, Stennis Space Ctr, MS 39529 USA.
EM travis.smith@nrlssc.navy.mil
OI Allard, Richard/0000-0002-6066-2722
FU 6.2 NRL Core Project "Coupled Ocean-Wave Prediction System" [0602435N];
6.2 ONR Tropical Cyclone NOPP Project [N00014-10-1-0162]
FX This work was funded through the 6.2 NRL Core Project "Coupled
Ocean-Wave Prediction System: Program Element #0602435N" and the 6.2 ONR
Tropical Cyclone NOPP Project N00014-10-1-0162. Thanks are given to Ed
Walsh and Isaac Ginis of the University of Rhode Island for supplying
the SRA data. Special thanks are extended to Sean Ziegeler of the User
Productivity, Enhancement, Technology Transfer, and Training (PETTT)
group for technical assistance and to Bill Teague and Ewa Jarosz of NRL
for providing the ADCP data and Fig. 1. Irina Yaremchuk, a Science and
Engineering Apprenticeship Program (SEAP) summer student from Northshore
High School in Slidell, Louisiana, assisted with the data analysis. The
author would also like to thank three anonymous reviewers for their
comments that improved the manuscript.
NR 77
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PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 1463-5003
EI 1463-5011
J9 OCEAN MODEL
JI Ocean Model.
PD SEP
PY 2013
VL 69
BP 181
EP 194
DI 10.1016/j.ocemod.2013.06.003
PG 14
WC Meteorology & Atmospheric Sciences; Oceanography
SC Meteorology & Atmospheric Sciences; Oceanography
GA 206XF
UT WOS:000323558600013
ER
PT J
AU Miyano, G
Ignacio, RC
Wood, RE
Inge, TH
AF Miyano, Go
Ignacio, Romeo C., Jr.
Wood, Robert E.
Inge, Thomas H.
TI Improvement of tracheal compression after pectus excavatum repair
SO PEDIATRIC SURGERY INTERNATIONAL
LA English
DT Article
DE Tracheal compression; Tracheomalacia; Pectus excavatum; Nuss technique
ID STRAIGHT BACK SYNDROME
AB A 4-year-old girl with pectus excavatum (PE), multiple prior respiratory infections, tracheomalacia and tracheal compression due to the innominate artery was referred for surgical evaluation. Aortopexy was deemed unlikely to improve airway diameter due to her chest concavity. Thoracoscopy-assisted PE repair was performed, resulting in marked improvement in the anteroposterior diameter of the trachea and resolution of her respiratory symptoms. Durability of the PE correction at 2 and 7 years following bar removal was demonstrated radiographically.
C1 [Miyano, Go] Juntendo Univ, Div Pediat Surg, Tokyo, Japan.
[Ignacio, Romeo C., Jr.] USN, Med Ctr, San Diego, CA 92152 USA.
[Wood, Robert E.] Cincinnati Childrens Hosp Med Ctr, Dept Pediat, Cincinnati, OH 45229 USA.
[Inge, Thomas H.] Cincinnati Childrens Hosp Med Ctr, Dept Pediat Gen & Thorac Surg, Cincinnati, OH 45229 USA.
RP Inge, TH (reprint author), Cincinnati Childrens Hosp Med Ctr, Dept Pediat Gen & Thorac Surg, 3333 Burnet Ave, Cincinnati, OH 45229 USA.
EM Thomas.inge@cchmc.org
NR 6
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U2 1
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0179-0358
J9 PEDIATR SURG INT
JI Pediatr. Surg. Int.
PD SEP
PY 2013
VL 29
IS 9
BP 957
EP 959
DI 10.1007/s00383-013-3327-3
PG 3
WC Pediatrics; Surgery
SC Pediatrics; Surgery
GA 206SF
UT WOS:000323542000014
PM 23708973
ER
PT J
AU Tsikolia, M
Bernier, UR
Coy, MR
Chalaire, KC
Becnel, JJ
Agramonte, NM
Tabanca, N
Wedge, DE
Clark, GG
Linthicum, KJ
Swale, DR
Bloomquist, JR
AF Tsikolia, Maia
Bernier, Ulrich R.
Coy, Monique R.
Chalaire, Katelyn C.
Becnel, James J.
Agramonte, Natasha M.
Tabanca, Nurhayat
Wedge, David E.
Clark, Gary G.
Linthicum, Kenneth J.
Swale, Daniel R.
Bloomquist, Jeffrey R.
TI Insecticidal, repellent and fungicidal properties of novel
trifluoromethylphenyl amides
SO PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY
LA English
DT Article
DE Pesticides; Plant pathogenic fungi; Trifluoromethylphenyl amides; Aedes
aegypti; Anopheles albimanus; Drosophila melanogaster
ID MEDICINAL CHEMISTRY; FEMALE MOSQUITOS; FLUORINE
AB Twenty trifluoromethylphenyl amides were synthesized and evaluated as fungicides and as mosquito toxicants and repellents. Against Aedes aegypti larvae, N-(2,6-dichloro-4-(trifluoromethyl)phenyl)-3,5dinitrobenzamide (le) was the most toxic compound (24 h LC50 1940 nM), while against adults N-(2,6-dichloro-4-(trifluoromethyl)phenyl)-2,2,2-trifluoroacetamide (1c) was most active (24 h LD50 19.182 nM, 0.5 mu L/insect). However, the 24 h LC50 and LD50 values of fipronil against Ae. aegypti larvae and adults were significantly lower: 13.55 nM and 0.787 x 10(-4) nM, respectively. Compound 1c was also active against Drosophila melanogaster adults with 24 h LC50 values of 5.6 and 4.9 mu g/cm(2) for the Oregon-R and 1675 strains, respectively. Fipronil had LC50 values of 0.004 and 0.017 mu g/cm(2) against the two strains of D. melanogaster, respectively. In repellency bioassays against female Ae. aegypti, 2,2,2-trifluoro-N-(2-(trifluoromethyl)phenyl)acetamide (4c) had the highest repellent potency with a minimum effective dosage (MED) of 0.039 mu mol/cm(2) compared to DEET (MED of 0.091 mu mol/cm(2)). Compound N(2-(trifluoromethyl)phenyl)hexanamide (4a) had an MED of 0.091 mu mol/cm(2) which was comparable to DEET. Compound 4c was the most potent fungicide against Phomopsis obscurans. Several trends were discerned between the structural configuration of these molecules and the effect of structural changes on toxicity and repellency. Para- or meta- trifluoromethylphenyl amides with an aromatic ring attached to the carbonyl carbon showed higher toxicity against Ae. aegypti larvae, than ortho- trifluoromethylphenyl amides. Ortho- trifluoromethylphenyl amides with trifluoromethyl or alkyl group attached to the carbonyl carbon produced higher repellent activity against female Ae. aegypti and Anopheles albimanus than meta- or para- trifluoromethylphenyl amides. The presence of 2,6-dichloro- substitution on the phenyl ring of the amide had an influence on larvicidal and repellent activity of para- trifluoromethylphenyl amides. (C) 2013 The Authors. Published by Elsevier Inc. All rights reserved.
C1 [Tsikolia, Maia; Bernier, Ulrich R.; Coy, Monique R.; Becnel, James J.; Agramonte, Natasha M.; Clark, Gary G.; Linthicum, Kenneth J.] USDA ARS, Ctr Med Agr & Vet Entomol, Gainesville, FL 32608 USA.
[Chalaire, Katelyn C.] Naval Air Stn, Navy Entomol Ctr Excellence, Jacksonville, FL 32212 USA.
[Tabanca, Nurhayat] Univ Mississippi, Natl Ctr Nat Prod Res, Pharmaceut Sci Res Inst, University, MS 38677 USA.
[Wedge, David E.] Univ Mississippi, USDA ARS, Nat Prod Utilizat Res Unit, University, MS 38677 USA.
[Swale, Daniel R.; Bloomquist, Jeffrey R.] Univ Florida, Emerging Pathogens Inst, Dept Entomol & Nematol, Gainesville, FL 32610 USA.
RP Tsikolia, M (reprint author), USDA ARS, Ctr Med Agr & Vet Entomol, 1600 SW 23rd Dr, Gainesville, FL 32608 USA.
EM maia.tsikolia@ars.usda.gov
FU Deployed War-Fighter Protection Research Program; United States
Department of Defense through Armed Forces Pest Management Board
FX We thank Nathan Newlon and Gregory Allen (USDA-Agricultural Research
Service-Center for Medical, Agricultural, and Veterinary Entomology) for
laboratory technical support with the mosquito bioassays; J. Linda
Robertson and Ramona Pace for assistance with the bioautography and
microtiter assays; Nucleic Magnetic Resonance and Mass Spectrometry
facilities of the University of Florida. This work was supported by the
Deployed War-Fighter Protection Research Program and funded by the
United States Department of Defense through the Armed Forces Pest
Management Board.
NR 22
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U1 3
U2 28
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0048-3575
J9 PESTIC BIOCHEM PHYS
JI Pest. Biochem. Physiol.
PD SEP
PY 2013
VL 107
IS 1
BP 138
EP 147
DI 10.1016/j.pestbp.2013.06.006
PG 10
WC Biochemistry & Molecular Biology; Entomology; Physiology
SC Biochemistry & Molecular Biology; Entomology; Physiology
GA 209YA
UT WOS:000323795300021
PM 25149248
ER
PT J
AU Agassi, YD
AF Agassi, Y. D.
TI Low-field critical current density in porous MgB2 powders
SO PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS
LA English
DT Article
DE Sintered MgB2 powders; Critical current density field dependence; Vortex
pinning; Superconductor cylinder
ID SUPERCONDUCTING DISK
AB Porous MgB2 powders are comprised of an ensemble of irregularly shaped constituents. In this work we introduce a model for the critical current density in such powders in the presence of a low external field H (H < 4 T) and in the high-porosity limit, where effects of vortex-lattice elasticity can be neglected and vortex pinning takes place within the powder-constituents. The ensuing critical current-density expression is a product of three decoupled factors: The first sets the scale for the critical current-density magnitude, while the second and third factors contain the field and powder-constituent size-parameters dependencies, respectively. The field dependent factor is of the form H-n and 0.5 <= n <= 1.0, where the limiting exponents n = 0.5 and n = 1.0 correspond to vortex configurations within a powder-constituent of a linear array and a two-dimensional lattice, respectively. For the calculations, we assume for the powder constituent shape a cylinder of arbitrary height and radius, where an external field and a single pinned vortex are aligned in parallel to the cylinder's axis. The exact fields of this configuration are derived. The size-parameters dependence implies enhanced critical current density for a cigar-like shape powder-constituent aligned with the field, and of radius smaller than about three times the penetration depth. These conclusions are consistent with pertaining data. (C) 2013 Elsevier B. V. All rights reserved.
C1 Naval Surface Warfare Ctr, Carderock Div, Bethesda, MD 20817 USA.
RP Agassi, YD (reprint author), Naval Surface Warfare Ctr, Carderock Div, 9500 MacArthur Blvd, Bethesda, MD 20817 USA.
EM yehoshua.agassi@navy.mil
FU ILIR program of NSWC-CD
FX Support for this work was provided by the ILIR program of NSWC-CD.
NR 43
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U1 0
U2 14
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0921-4534
EI 1873-2143
J9 PHYSICA C
JI Physica C
PD SEP
PY 2013
VL 492
BP 113
EP 122
DI 10.1016/j.physc.2013.05.025
PG 10
WC Physics, Applied
SC Physics
GA 207NH
UT WOS:000323607800021
ER
PT J
AU Bastida-Corcuera, FD
Singh, BN
Gray, GC
Stamper, PD
Davuluri, M
Schlangen, K
Corbeil, RR
Corbeil, LB
AF Bastida-Corcuera, F. D.
Singh, B. N.
Gray, G. C.
Stamper, P. D.
Davuluri, M.
Schlangen, K.
Corbeil, R. R.
Corbeil, L. B.
TI Antibodies to Trichomonas vaginalis surface glycolipid
SO SEXUALLY TRANSMITTED INFECTIONS
LA English
DT Article
DE ANTIBODIES; ANTIGEN; GENITAL TRACT INFECT; TRICHOMONAS
ID TRITRICHOMONAS-FETUS; BOVINE TRICHOMONIASIS; EPITHELIAL-CELLS;
LIPOPHOSPHOGLYCAN; ANTIGEN; PROTEINASES; EXPRESSION; INFECTION
AB Background
Human trichomoniasis is the most common non-viral sexually transmitted disease, yet immune responses are not well studied.
Methods
Since the Trichomonas vaginalis lipophosphoglycan (TvLPG) is an important virulence factor, a bank of eight monoclonal antibodies was generated to define the antigen in clinical isolates. The TvLPG-specific antibody response of women who were culture positive (n=33) or negative (n=33) for T vaginalis infection was determined by isotype-specific ELISA.
Results
The bank of monoclonal antibodies reacted with conserved surface TvLPG epitopes in 27 isolates from pregnant women at their first prenatal visit. Conserved TvLPG epitopes were shown to be surface exposed by immunofluorescence. Sera collected from the same patients at the same time were assayed for specific antibodies. Serum and vaginal secretions from 33 T vaginalis-positive women had statistically higher IgG anti-TvLPG levels than age-matched and race-matched negative controls in the same clinical study (p<0.01). Vaginal IgA anti-TvLPG levels of the women with trichomoniasis were almost significantly higher than controls (p=0.055). Infected women with normal pregnancies had significantly higher vaginal IgG anti-TvLPG values than infected women with adverse outcomes of pregnancy.
Conclusions
These antibody responses show that infected women can respond to the conserved TvLPG antigen. Since antibodies to trichomonad surface LPG protect in a bovine model of trichomoniasis, the role of these antibodies in the human disease should be investigated.
C1 [Bastida-Corcuera, F. D.; Corbeil, L. B.] Univ Calif San Diego, Dept Pathol, San Diego, CA USA.
[Bastida-Corcuera, F. D.] ArtinVet, Derio, Bizkaia, Spain.
[Singh, B. N.; Davuluri, M.] SUNY Upstate Med Univ, Dept Biochem & Mol Biol, Syracuse, NY 13210 USA.
[Gray, G. C.; Schlangen, K.] Naval Hlth Res Ctr, San Diego, CA USA.
[Gray, G. C.] Univ Florida, Coll Publ Hlth & Hlth Profess, Gainesville, FL USA.
[Stamper, P. D.] Univ Alabama, Dept Microbiol, Birmingham, FL USA.
[Corbeil, R. R.] MRIGlobal, Frederick, MD USA.
[Corbeil, R. R.] Univ San Diego, Dept Math & Comp Sci, San Diego, CA 92110 USA.
[Corbeil, L. B.] Univ Calif Davis, Dept Populat Hlth & Reprod, Davis, CA USA.
RP Bastida-Corcuera, FD (reprint author), Univ Calif San Diego, San Diego Med Ctr, Dept Pathol, 200 West Arbor Dr, San Diego, CA 92103 USA.
EM lcorbeil@ucsd.edu
OI Bastida, Felix/0000-0003-1036-9787
FU DAMD [17-95-1-5054]; NICHD [R21 HD054451]; NIAID from the National
Institutes of Health, USA [RO1 AI079085]
FX This study was funded, in part, by grants DAMD 17-95-1-5054; NICHD R21
HD054451; and NIAID, RO1 AI079085 from the National Institutes of
Health, USA
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U2 9
PU BMJ PUBLISHING GROUP
PI LONDON
PA BRITISH MED ASSOC HOUSE, TAVISTOCK SQUARE, LONDON WC1H 9JR, ENGLAND
SN 1368-4973
J9 SEX TRANSM INFECT
JI Sex. Transm. Infect.
PD SEP
PY 2013
VL 89
IS 6
SI SI
BP 467
EP 472
DI 10.1136/sextrans-2012-051013
PG 6
WC Infectious Diseases
SC Infectious Diseases
GA 203UF
UT WOS:000323318500013
PM 23785040
ER
PT J
AU Shahzad, MI
Nichol, JE
Wang, J
Campbell, JR
Chan, PW
AF Shahzad, Muhammad I.
Nichol, Janet E.
Wang, Jun
Campbell, James R.
Chan, Pak W.
TI Estimating surface visibility at Hong Kong from ground-based LIDAR, sun
photometer and operational MODIS products
SO JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION
LA English
DT Article
ID AEROSOL OPTICAL-PROPERTIES; PEARL RIVER DELTA; AIR-POLLUTION;
METEOROLOGICAL PARAMETERS; ATMOSPHERIC VISIBILITY; PARTICULATE MATTER;
LIGHT EXTINCTION; IN-SITU; RETRIEVALS; SCATTERING
AB Hong Kong's surface visibility has decreased in recent years due to air pollution from rapid social and economic development in the region. In addition to deteriorating health standards, reduced visibility disrupts routine civil and public operations, most notably transportation and aviation. Regional estimates of visibility solved operationally using available ground and satellite-based estimates of aerosol optical properties and vertical distribution may prove more effective than standard reliance on a few existing surface visibility monitoring stations. Previous studies have demonstrated that such satellite measurements correlate well with near-surface optical properties, despite these sensors do not consider range-resolved information and indirect parameterizations necessary to solve relevant parameters. By expanding such analysis to include vertically resolved aerosol profile information from an autonomous ground-based lidar instrument, this work develops six models for automated assessment of surface visibility. Regional visibility is estimated using co-incident ground-based lidar, sun photometer, visibility meter, and MODerate-resolution maging Spectroradiometer (MODIS) aerosol optical depth data sets. Using a 355 nm extinction coefficient profile solved from the lidar, MODIS AOD (aerosol optical depth) is scaled down to the surface to generate a regional composite depiction of surface visibility. These results demonstrate the potential for applying passive satellite depictions of broad-scale aerosol optical properties together with a ground-based surface lidar and zenith-viewing sun photometer for improving quantitative assessments of visibility in a city such as Hong Kong.
Implications: The study presents methods to estimate surface level visibility using remote sensing techniques, thus reducing the cost and effort required to estimate visibility at regional level. This helps to address environmental and health effects of ambient air pollution related to visibility for areas with no existing air quality monitoring stations. Policy regulation and hazard assessments impacting transportation and navigation can be improved by integrating the remotely estimated surface visibility with a real-time environmental data network.
C1 [Shahzad, Muhammad I.; Nichol, Janet E.] Hong Kong Polytech Univ, Dept Land Surveying & Geoinformat, Hong Kong, Hong Kong, Peoples R China.
[Shahzad, Muhammad I.; Wang, Jun] Univ Nebraska, Dept Earth & Atmospher Sci, Lincoln, NE USA.
[Campbell, James R.] Naval Res Lab, Aerosol & Radiat Sect, Monterey, CA USA.
[Chan, Pak W.] Hong Kong Observ, Kowloon, Hong Kong, Peoples R China.
RP Shahzad, MI (reprint author), Hong Kong Polytech Univ, Dept Land Surveying & Geoinformat, Hong Kong, Hong Kong, Peoples R China.
EM imran.shahzad@connect.polyu.hk
RI Campbell, James/C-4884-2012; Chan, Pak Wai/C-8447-2011; Nichol,
Janet/A-1442-2014; Wang, Jun/A-2977-2008; Shahzad, M. Ikram/H-6765-2015;
OI Campbell, James/0000-0003-0251-4550; Chan, Pak Wai/0000-0003-2289-0609;
Nichol, Janet/0000-0003-4015-893X; Wang, Jun/0000-0002-7334-0490;
Shahzad, Muhammad Imran/0000-0003-3795-9832
FU The Hong Kong Polytechnic University [GYJ76]
FX The authors would like to acknowledge the NASA Goddard Earth Science
Distributed Active Archive Center for the MODIS Level IB and Level 2
data and Brent Holben for helping with the Hong Kong Polytechnic
University AERONET station. Author M. S. kindly acknowledges Zhifeng
Yang and Xiaoguang Xu at University of Nebraska-Lincoln for assisting in
the analyses. M. S. also thanks Prof. David K. Watkins and the
Department of Earth & Atmospheric Sciences for providing office space
and other logistic help during his visit in UNL. The Hong Kong
Polytechnic University Grant GYJ76 sponsored this research.
NR 69
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U2 23
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 530 WALNUT STREET, STE 850, PHILADELPHIA, PA 19106 USA
SN 1096-2247
EI 2162-2906
J9 J AIR WASTE MANAGE
JI J. Air Waste Manage. Assoc.
PD SEP 1
PY 2013
VL 63
IS 9
BP 1098
EP 1110
DI 10.1080/10962247.2013.801372
PG 13
WC Engineering, Environmental; Environmental Sciences; Meteorology &
Atmospheric Sciences
SC Engineering; Environmental Sciences & Ecology; Meteorology & Atmospheric
Sciences
GA 202UL
UT WOS:000323245000012
PM 24151685
ER
PT J
AU Hedahl, M
AF Hedahl, Marcus
TI The Collective Fallacy: The Possibility of Irreducibly Collective Action
Without Corresponding Collective Moral Responsibility
SO PHILOSOPHY OF THE SOCIAL SCIENCES
LA English
DT Article
DE collective responsibility; collective action; social ontology
AB The common assumption is that if a group comprising moral agents can act intentionally, as a group, then the group itself can also be properly regarded as a moral agent with respect to that action. I argue, however, that this common assumption is the result of a problematic line of reasoning I refer to as the collective fallacy. Recognizing the collective fallacy as a fallacy allows us to see that if there are, in fact, irreducibly joint actors, then some of them will lack the full-fledged moral agency of their members. The descriptivist question of whether a group can perform irreducibly joint intentional action need not rise and fall with the normative question of whether a group can be a moral agent.
C1 [Hedahl, Marcus] London Sch Econ, London WC2A 2AE, England.
RP Hedahl, M (reprint author), US Naval Acad, Dept Leadership Eth & Law, Annapolis, MD 21402 USA.
EM marcushedahl@gmail.com
NR 29
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U1 0
U2 4
PU SAGE PUBLICATIONS INC
PI THOUSAND OAKS
PA 2455 TELLER RD, THOUSAND OAKS, CA 91320 USA
SN 0048-3931
J9 PHILOS SOC SCI
JI Philos. Soc. Sci.
PD SEP
PY 2013
VL 43
IS 3
SI SI
BP 283
EP 300
DI 10.1177/0048393113489266
PG 18
WC Ethics; Philosophy
SC Social Sciences - Other Topics; Philosophy
GA 202IS
UT WOS:000323208300001
ER
PT J
AU Chaturvedi, P
Taguchi, M
Burrs, SL
Hauser, BA
Salim, WWAW
Claussen, JC
McLamore, ES
AF Chaturvedi, P.
Taguchi, M.
Burrs, S. L.
Hauser, B. A.
Salim, W. W. A. W.
Claussen, J. C.
McLamore, E. S.
TI Emerging technologies for non-invasive quantification of physiological
oxygen transport in plants
SO PLANTA
LA English
DT Article
DE Oxygen; Reactive oxygen species; Sensor; Non-invasive
ID VIBRATING-MICROELECTRODE SYSTEM; MODULATED OPTICAL NANOPROBES; CARBON
NANOTUBE NETWORKS; CELL-CULTURE; INTRACELLULAR OXYGEN; QUANTUM DOTS;
BIOLOGICAL DETECTION; MEASURING METABOLISM; DISSOLVED-OXYGEN;
POLLEN-TUBE
AB Oxygen plays a critical role in plant metabolism, stress response/signaling, and adaptation to environmental changes (Lambers and Colmer, Plant Soil 274:7-15, 2005; Pitzschke et al., Antioxid Redox Signal 8:1757-1764, 2006; Van Breusegem et al., Plant Sci 161:405-414, 2001). Reactive oxygen species (ROS), by-products of various metabolic pathways in which oxygen is a key molecule, are produced during adaptation responses to environmental stress. While much is known about plant adaptation to stress (e.g., detoxifying enzymes, antioxidant production), the link between ROS metabolism, O-2 transport, and stress response mechanisms is unknown. Thus, non-invasive technologies for measuring O-2 are critical for understanding the link between physiological O-2 transport and ROS signaling. New non-invasive technologies allow real-time measurement of O-2 at the single cell and even organelle levels. This review briefly summarizes currently available (i.e., mainstream) technologies for measuring O-2 and then introduces emerging technologies for measuring O-2. Advanced techniques that provide the ability to non-invasively (i.e., non-destructively) measure O-2 are highlighted. In the near future, these non-invasive sensors will facilitate novel experimentation that will allow plant physiologists to ask new hypothesis-driven research questions aimed at improving our understanding of physiological O-2 transport.
C1 [Chaturvedi, P.; Taguchi, M.; Burrs, S. L.; McLamore, E. S.] Univ Florida, Agr & Biol Engn Dept, Gainesville, FL 32610 USA.
[Hauser, B. A.] Univ Florida, Dept Biol, Gainesville, FL USA.
[Salim, W. W. A. W.] Purdue Univ, Dept Agr & Biol Engn, W Lafayette, IN 47907 USA.
[Salim, W. W. A. W.] Purdue Univ, Birck Nanotechnol Ctr, Bindley Biosci Ctr, Physiol Sensing Facil, W Lafayette, IN 47907 USA.
[Claussen, J. C.] US Naval Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC USA.
[Claussen, J. C.] George Mason Univ, Coll Sci, Fairfax, VA 22030 USA.
RP McLamore, ES (reprint author), Univ Florida, Agr & Biol Engn Dept, Gainesville, FL 32610 USA.
EM emclamor@ufl.edu
OI Claussen, Jonathan/0000-0001-7065-1077
FU UF Excellence Award; IFAS Early Career Award [005062]
FX The authors also acknowledge the UF Excellence Award and the IFAS Early
Career Award (CRIS No. 005062) for funding (McLamore). A special thanks
to PIKL (Baltimore, MD) for help with graphic images.
NR 122
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U1 6
U2 41
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0032-0935
J9 PLANTA
JI Planta
PD SEP
PY 2013
VL 238
IS 3
BP 599
EP 614
DI 10.1007/s00425-013-1926-9
PG 16
WC Plant Sciences
SC Plant Sciences
GA 205DH
UT WOS:000323421100014
PM 23846103
ER
PT J
AU Garfinkel, SL
AF Garfinkel, Simson L.
TI Digital Forensics Modern crime often leaves an electronic trail. Finding
and preserving that evidence requires careful methods as well as
technical skill
SO AMERICAN SCIENTIST
LA English
DT Article
ID FILES
C1 Naval Postgrad Sch, Monterey, CA 93943 USA.
RP Garfinkel, SL (reprint author), Naval Postgrad Sch, Monterey, CA 93943 USA.
NR 12
TC 1
Z9 1
U1 1
U2 7
PU SIGMA XI-SCI RES SOC
PI RES TRIANGLE PK
PA PO BOX 13975, RES TRIANGLE PK, NC 27709 USA
SN 0003-0996
J9 AM SCI
JI Am. Scientist
PD SEP-OCT
PY 2013
VL 101
IS 5
BP 370
EP 377
PG 8
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 199UW
UT WOS:000323022000018
ER
PT J
AU Miller, M
AF Miller, Melinda
TI Face Value: The Entwined Histories of Money and Race in America
SO JOURNAL OF ECONOMIC HISTORY
LA English
DT Book Review
C1 [Miller, Melinda] US Naval Acad, Annapolis, MD USA.
RP Miller, M (reprint author), US Naval Acad, Annapolis, MD USA.
NR 1
TC 0
Z9 0
U1 3
U2 3
PU CAMBRIDGE UNIV PRESS
PI NEW YORK
PA 32 AVENUE OF THE AMERICAS, NEW YORK, NY 10013-2473 USA
SN 0022-0507
J9 J ECON HIST
JI J. Econ. Hist.
PD SEP
PY 2013
VL 73
IS 3
BP 885
EP 887
DI 10.1017/S0022050713000727
PG 4
WC Economics; History; History Of Social Sciences
SC Business & Economics; History; Social Sciences - Other Topics
GA 198GF
UT WOS:000322909600017
ER
PT J
AU Blain, CA
Linzell, R
McKay, P
AF Blain, Cheryl Ann
Linzell, Robert
McKay, Paul
TI Simple Methodology for Deriving Continuous Shorelines from Imagery:
Application to Rivers
SO JOURNAL OF WATERWAY PORT COASTAL AND OCEAN ENGINEERING
LA English
DT Article
DE Shores; Imaging techniques; Rivers and streams; Coastal environment;
Algorithms; Mesh generation; Extraction procedures; Shoreline; Edge
detection; Extraction procedures; Imaging techniques; Rivers; Coastline;
Algorithms; Mesh generation
ID UNSTRUCTURED MESH GENERATION; TEXTURE SEGMENTATION; SAR IMAGES;
SATELLITE IMAGERY; COASTLINE; EXTRACTION; POINTS
AB A methodology is developed to extract and process shoreline data, the interface between land and water, identified from imagery. Initially, image pixels containing water (water points) and pixel locations of the land/water interface (edge points) are extracted from an image using either a supervised, threshold approach or a newly developed, automated texture-based analysis. Both are described and demonstrated. Subsequently applied is a procedure for processing these edge and water point locations to obtain oriented and ordered shoreline coordinates. The described methodology has several advantages: (1) shoreline processing is independent of imagery source and resolution, that is, specification of search directions based on image resolution or desired shoreline resolution is unnecessary and (2) a need for additional postprocessing of remote-sensed data or extracted-edge data are obviated, that is, edge data need not be of high quality or vectorized. Details of the entire methodology, including algorithms for water and edge point extraction from imagery and specifics of the processing applied to obtain an ordered, oriented shoreline, are presented. Execution of the complete shoreline extraction algorithm is demonstrated independently by application to sections of the East Pearl River, Mississippi, and the Kootenai River, Idaho. A quantitative performance measure of the ability of the algorithm to produce realistic-ordered, oriented shoreline coordinates from a set of edge and water point data extracted from imagery results in RMS errors of 1 m or less or two times the ground sample distance of the imagery. (C) 2013 American Society of Civil Engineers.
C1 [Blain, Cheryl Ann; McKay, Paul] Naval Res Lab, Div Oceanog, Stennis Space Ctr, MS 39529 USA.
[Linzell, Robert] QinetiQ North Amer, Serv & Solut Grp, Stennis Space Ctr, MS 39529 USA.
RP Blain, CA (reprint author), Naval Res Lab, Div Oceanog, Code 7322, Stennis Space Ctr, MS 39529 USA.
EM cheryl.ann.blain@nrlssc.navy.mil
FU Office of Naval Research through the NRL 6.2 project, Demonstration and
Assessment of a Self-Organizing Adaptive Underwater Network
FX The authors thank A. Weidemann for providing the remotely sensed data
and C. Daniels and P. Flynn for processing the remotely sensed data for
the East Pearl River. The authors gratefully acknowledge the
contributions of four anonymous reviewers. Funding for this research is
provided by the Office of Naval Research through the NRL 6.2 project,
Demonstration and Assessment of a Self-Organizing Adaptive Underwater
Network. This work is Naval Research Laboratory contribution number
NRL/JA/7320-11-797.
NR 36
TC 1
Z9 2
U1 1
U2 14
PU ASCE-AMER SOC CIVIL ENGINEERS
PI RESTON
PA 1801 ALEXANDER BELL DR, RESTON, VA 20191-4400 USA
SN 0733-950X
J9 J WATERW PORT C
JI J. Waterw. Port Coast. Ocean Eng.
PD SEP 1
PY 2013
VL 139
IS 5
BP 365
EP 382
DI 10.1061/(ASCE)WW.1943-5460.0000189
PG 18
WC Engineering, Civil; Engineering, Ocean; Water Resources
SC Engineering; Water Resources
GA 201RN
UT WOS:000323160800004
ER
PT J
AU Lawson, L
AF Lawson, Letitia
TI Authority Stealing: Anti-Corruption War and Democratic Politics in
Post-Military Nigeria
SO AFRICAN STUDIES REVIEW
LA English
DT Book Review
C1 [Lawson, Letitia] Naval Postgrad Sch, Monterey, CA 93943 USA.
RP Lawson, L (reprint author), Naval Postgrad Sch, Monterey, CA 93943 USA.
EM lllawson@nps.edu
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 0002-0206
EI 1555-2462
J9 AFR STUD REV
JI Afr. Stud. Rev.
PD SEP
PY 2013
VL 56
IS 2
BP 205
EP 207
DI 10.1017/asr.2013.58
PG 5
WC Area Studies
SC Area Studies
GA AN8AY
UT WOS:000340824400020
ER
PT J
AU Hu, AG
Dunlap, BI
AF Hu, Anguang
Dunlap, Brett I.
TI Three-center molecular integrals and derivatives using solid harmonic
Gaussian orbital and Kohn-Sham potential basis sets
SO CANADIAN JOURNAL OF CHEMISTRY
LA English
DT Article
ID CHI-ALPHA; ELECTRONIC-STRUCTURE; ENERGY; PSEUDOPOTENTIALS
C1 [Hu, Anguang] Def Res & Dev Canada Suffield, Medicine Hat, AB T1A 8K6, Canada.
[Dunlap, Brett I.] US Naval Res Lab, Div Chem, Washington, DC 20375 USA.
RP Hu, AG (reprint author), Def Res & Dev Canada Suffield, POB Stn Main, Medicine Hat, AB T1A 8K6, Canada.
EM anguang.hu@drdc-rddc.gc.ca
OI Dunlap, Brett/0000-0003-1356-6559
FU Office of Naval Research - Naval Research Laboratory
FX The Office of Naval Research, directly and through the Naval Research
Laboratory supported this research.
NR 23
TC 1
Z9 1
U1 0
U2 5
PU CANADIAN SCIENCE PUBLISHING, NRC RESEARCH PRESS
PI OTTAWA
PA 65 AURIGA DR, SUITE 203, OTTAWA, ON K2E 7W6, CANADA
SN 0008-4042
EI 1480-3291
J9 CAN J CHEM
JI Can. J. Chem.
PD SEP
PY 2013
VL 91
IS 9
BP 907
EP +
DI 10.1139/cjc-2012-0485
PG 2
WC Chemistry, Multidisciplinary
SC Chemistry
GA 216SM
UT WOS:000324304400019
ER
PT J
AU Lee, D
Lee, KM
Rashed, MI
Bang, H
AF Lee, Donghun
Lee, Kyung-Min
Rashed, Mohammed Irfan
Bang, Hyochoong
TI An Antenna Tracking Profile Design for Communication with a Ground
station
SO INTERNATIONAL JOURNAL OF AERONAUTICAL AND SPACE SCIENCES
LA English
DT Article
DE Antenna tracking profile design; Parameter optimization; Earth
observation satellite; Gimbal system; Legendre-gauss-Lobatto points
AB In order to communicate with a ground station, the tracking profile design problem for a directional antenna system is considered. Because the motions of the gimbal angles in the antenna system affect the image quality, the main object is to minimize the motion of the gimbal angles during the satellite's imaging phase. For this goal, parameter optimization problems in the imaging and maneuver phases are formulated separately in the body-frame, and solved sequentially. Also, several mechanical constraints, such as the limitation of the gimbal angle and rate, are considered in the problems. The tracking profiles of the gimbal angles in the maneuver phases are designed with N-th order polynomials, to continuously connect the tracking profiles between two imaging phases. The results confirm that if the vector trace of the desired antenna-pointing vector is within the antenna's beam-width angle, motions of the gimbal angles are not required in the corresponding imaging phase. Also, through numerical examples, it is shown that motion of the gimbal angles in the imaging phase can be minimized by the proposed design process.
C1 [Lee, Donghun; Rashed, Mohammed Irfan; Bang, Hyochoong] Korea Adv Inst Sci & Technol, Daejoen, South Korea.
[Lee, Kyung-Min] Naval Postgrad Sch, Monterey, CA USA.
RP Bang, H (reprint author), Korea Adv Inst Sci & Technol, Daejoen, South Korea.
EM dhlee@ascl.kaist.ac.kr; lekomin@gmail.com; irfan@ascl.kaist.ac.kr;
hcbang@ascl.kaist.ac.kr
NR 7
TC 2
Z9 2
U1 0
U2 1
PU KOREAN SOC AERONAUTICAL & SPACE SCIENCES
PI SEOULD
PA 635-4, YEOGSAM-DONG, KANGNAM-KU, SEOULD, 135-703, SOUTH KOREA
SN 2093-274X
EI 2093-2480
J9 INT J AERONAUT SPACE
JI Int. J. Aeronaut. Space Sci.
PD SEP
PY 2013
VL 14
IS 3
BP 282
EP 295
DI 10.5139/IJASS.2013.14.3.282
PG 14
WC Engineering, Aerospace
SC Engineering
GA AX5UE
UT WOS:000346992100011
ER
PT J
AU Mayo, JA
MacGregor, AJ
Dougherty, AL
Galarneau, MR
AF Mayo, Jonathan A.
MacGregor, Andrew J.
Dougherty, Amber L.
Galarneau, Michael R.
TI Role of Occupation on New-Onset Post-Traumatic Stress Disorder and
Depression Among Deployed Military Personnel
SO MILITARY MEDICINE
LA English
DT Article
ID MENTAL-HEALTH PROBLEMS; NATIONAL-GUARD SOLDIERS; US MILITARY; CARE
UTILIZATION; RISK-FACTORS; IRAQ; AFGHANISTAN; COMBAT; ATTRITION; WARS
AB The purpose of this study was to examine the role of military occupation on new-onset post-traumatic stress disorder (PTSD) and depression among U.S. combat veterans recently returned from deployment to Iraq Enlisted, active duty Navy and Marine Corps personnel without a history of mental disorder were identified from deployment records and linked to medical databases (n = 40,600). Multivariate logistic regression was used to examine the association between occupation and postdeployment PTSD and depression diagnoses by branch of service. Navy health care specialists had higher odds of new-onset PTSD (odds ratio [OR] 4.53, 95% confidence interval [CI] 2.58-7.94) and depression (OR 2.58, 95% CI 1.53-4.34) compared with Navy functional support/other personnel. In addition, Marine combat specialists had higher odds of new-onset PTSD (OR 1.91, 95% CI 1.48-2.47) and depression (OR 1.36, 95% CI 1.10-1.68) compared with Marine functional support/other personnel. Occupation is associated with the development of new-onset PTSD and depression. The high rates of PTSD and depression among health care specialists warrant further investigation into the potential effects of caregiver stress on mental health.
C1 [Mayo, Jonathan A.; MacGregor, Andrew J.; Dougherty, Amber L.; Galarneau, Michael R.] Naval Hlth Res Ctr, San Diego, CA 92106 USA.
RP Mayo, JA (reprint author), Naval Hlth Res Ctr, 140 Sylvester Rd, San Diego, CA 92106 USA.
FU U.S. Navy Bureau of Medicine [60819]
FX The authors thank Science Applications International Corporation for its
contributions to this work. This work was supported by the U.S. Navy
Bureau of Medicine under the Wounded, Ill and Injured/Psychological
Health/Traumatic Brain Injury Program, Work Unit No. 60819.
NR 32
TC 3
Z9 3
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 SEP
PY 2013
VL 178
IS 9
BP 945
EP 950
DI 10.7205/MILMED-D-12-00527
PG 6
WC Medicine, General & Internal
SC General & Internal Medicine
GA AN7UC
UT WOS:000340805500008
PM 24005541
ER
PT J
AU Wright, E
AF Wright, Edward
TI Robert Penn Warren's Experiment in Identity: "Tale of Time" and Audubon:
A Vision
SO MISSISSIPPI QUARTERLY
LA English
DT Article
C1 US Naval Acad, Annapolis, MD 21402 USA.
RP Wright, E (reprint author), US Naval Acad, Annapolis, MD 21402 USA.
NR 28
TC 0
Z9 0
U1 0
U2 0
PU MISSISSIPPI QUARTERLY
PI MISSISSIPPI STATE
PA PO BOX 5272, MISSISSIPPI STATE, MS 39762 USA
SN 0026-637X
J9 MISS QUART
JI Mississippi Q.
PD FAL
PY 2013
VL 66
IS 4
BP 669
EP 689
PG 21
WC Literary Theory & Criticism
SC Literature
GA V39WE
UT WOS:000209440300007
ER
PT J
AU Jiang, CM
Shi, Y
Kompella, S
Hou, YT
Midkiff, SF
AF Jiang, Canming
Shi, Yi
Kompella, Sastry
Hou, Y. Thomas
Midkiff, Scott F.
TI Bicriteria Optimization in Multihop Wireless Networks: Characterizing
the Throughput-Energy Envelope
SO IEEE TRANSACTIONS ON MOBILE COMPUTING
LA English
DT Article
DE Bicriteria optimization; multihop wireless networks; throughput; energy
ID SENSOR NETWORKS; POWER-CONTROL; COMMUNICATION; STABILITY
AB Network throughput and energy consumption are two important performance metrics for a multihop wireless network. Current state-of-the-art research is limited to either maximizing throughput under some energy constraint or minimizing energy consumption while satisfying some throughput requirement. Although many of these prior efforts were able to offer some optimal solutions, there is still a critical need to have a systematic study on how to optimize both objectives simultaneously. In this paper, we take a multicriteria optimization approach to offer a systematic study on the relationship between the two performance objectives. To focus on throughput and energy performance, we simplify link layer scheduling by employing orthogonal channels among the links. We show that the solution to the multicriteria optimization problem characterizes the envelope of the entire throughput-energy region, i.e., the so-called optimal throughput-energy curve. We prove some important properties of the optimal throughput-energy curve. For case study, we consider both linear and nonlinear throughput functions. For the linear case, we characterize the optimal throughput-energy curve precisely through parametric analysis, while for the nonlinear case, we use a piecewise linear approximation to approximate the optimal throughput-energy curve with arbitrary accuracy. Our results offer important insights on exploiting the tradeoff between the two performance metrics.
C1 [Jiang, Canming; Shi, Yi; Hou, Y. Thomas; Midkiff, Scott F.] Virginia Polytech Inst & State Univ, Bradley Dept Elect & Comp Engn, Blacksburg, VA 24061 USA.
[Jiang, Canming] Cisco Syst Inc, San Jose, CA 95134 USA.
[Shi, Yi] Intelligent Automat Inc, Germantown, MD 20874 USA.
[Kompella, Sastry] US Naval Res Lab, Div Informat Technol, Washington, DC 20375 USA.
RP Jiang, CM (reprint author), Virginia Polytech Inst & State Univ, Bradley Dept Elect & Comp Engn, Blacksburg, VA 24061 USA.
EM jcm@vt.edu; yshi@vt.edu; sastry.kompella@nrl.navy.mil; thou@vt.edu;
midkiff@vt.edu
OI Midkiff, Scott/0000-0003-4933-7360
FU US National Science Foundation [0925719, 1064953, 1247830]; ONR
[N000141310080]
FX This research was supported in part by the US National Science
Foundation under grants 0925719, 1064953, and 1247830, and ONR under
grant N000141310080. The work of S. Kompella was supported in part by
the ONR.
NR 40
TC 2
Z9 2
U1 1
U2 7
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 SEP
PY 2013
VL 12
IS 9
BP 1866
EP 1878
DI 10.1109/TMC.2012.162
PG 13
WC Computer Science, Information Systems; Telecommunications
SC Computer Science; Telecommunications
GA 190HO
UT WOS:000322330200015
ER
PT J
AU Carpin, S
Burch, D
Basilico, N
Chung, TH
Kolsch, M
AF Carpin, Stefano
Burch, Derek
Basilico, Nicola
Chung, Timothy H.
Koelsch, Mathias
TI Variable Resolution Search with Quadrotors: Theory and Practice
SO JOURNAL OF FIELD ROBOTICS
LA English
DT Article
ID TARGET; PATH; UAV
AB This paper presents a variable resolution framework for autonomously searching stationary targets in a bounded area. Theoretical formulations are also described for using a probabilistic quadtree data structure, which incorporates imperfect Bayesian (false positive and false negative) detections and informs the searcher's route based on optimizing information gain. Live-fly field experimentation results using a quadrotor unmanned aerial vehicle validate the proposed methodologies and demonstrate an integrated system with autonomous control and embedded object detection for probabilistic search in realistic operational settings. Lessons learned from these field trials include characterization of altitude-dependent detection performance, and we also present a benchmark data set of outdoor aerial imagery for search and detection applications. Published 2013. This article has been contributed to by US Government employees and their work is in the public domain in the USA.
C1 [Carpin, Stefano; Burch, Derek] Univ Calif Merced, Merced, CA 95343 USA.
[Basilico, Nicola] Polytech Univ Milan, I-20133 Milan, Italy.
[Chung, Timothy H.; Koelsch, Mathias] Naval Postgrad Sch, Monterey, CA 93943 USA.
RP Carpin, S (reprint author), Univ Calif Merced, 5200 North Lake Rd, Merced, CA 95343 USA.
EM scarpin@ucmerced.edu
OI BASILICO, NICOLA/0000-0002-4512-3480
FU NPS-ONR [N00244-11-1-0023]; DARPA [HR0011-09-C-0002]; U.S. Government
FX Nicola Basilico was with the University of California, Merced while
doing this work. Stefano Carpin was partially supported by NPS-ONR under
Award No. N00244-11-1-0023. Nicola Basilico and Stefano Carpin were
partially supported by DARPA under Grant No. HR0011-09-C-0002. Any
opinions, findings, and conclusions or recommendations expressed in
these materials are those of the authors and should not be interpreted
as representing the official policies, either expressly or implied, of
the funding agencies of the U.S. Government. This paper extends
preliminary results presented at ICRA 2011 (Chung and Carpin, 2011) and
IROS 2011 (Carpin et al., 2011). The authors thank Kevin Jones for
having shared aerial images needed to obtain Figure 7.
NR 31
TC 6
Z9 6
U1 0
U2 35
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 SEP
PY 2013
VL 30
IS 5
BP 685
EP 701
DI 10.1002/rob.21468
PG 17
WC Robotics
SC Robotics
GA 196GI
UT WOS:000322761100002
ER
PT J
AU Tian, ZG
Choi, W
AF Tian, Zhigang
Choi, Wooyoung
TI Evolution of deep-water waves under wind forcing and wave breaking
effects: Numerical simulations and experimental assessment
SO EUROPEAN JOURNAL OF MECHANICS B-FLUIDS
LA English
DT Article
DE Water waves; Wave breaking; Wind forcing
ID AIR-FLOW SEPARATION; SURFACE-WAVES; GRAVITY-WAVES; FINITE DEPTH; PART
II; DISSIPATION; GROWTH; SHEAR
AB The evolution of two-dimensional dispersive focusing wave groups in deep water under wind forcing and wave breaking effects is investigated numerically and measurements collected from wind wave experiments are used to evaluate the numerical simulations. Wind forcing is modeled by introducing into the dynamic boundary condition a surface slope coherent pressure distribution, which is expressed through Miles' shear instability theory and Jeffreys' sheltering model. To activate Jeffreys' model in simulating waves evolving under wind forcing, an air flow separation criterion depending on wind speed and wave steepness is proposed. Direct comparisons of the measurements and the simulations are made by including the wind-driven current in the simulations. To simulate breaking waves, an eddy viscosity model is incorporated into a system of nonlinear evolution equations to dissipate wave energy and to predict surface elevation after breaking. For wave groups under no wind action, the eddy viscosity model simulates well the energy dissipation in breaking waves and predicts well the surface elevation after breaking. Under the weaker wind forcing condition, after consideration of the wind-driven current, the numerical model produces satisfying predictions. As the wind forcing becomes stronger, the disparity between the experiments and the simulations becomes more evident while the numerical results are still regarded as acceptable. The relative importances of the Miles' and the Jeffreys' models for waves under wind forcing are discussed through additional numerical tests. (C) 2013 Elsevier Masson SAS. All rights reserved.
C1 [Tian, Zhigang; Choi, Wooyoung] Korea Adv Inst Sci & Technol, Div Ocean Syst Engn, Taejon 305701, South Korea.
[Tian, Zhigang] USN, Dept Architecture, Exmar Offshore Co, Houston, TX 77042 USA.
[Choi, Wooyoung] New Jersey Inst Technol, Ctr Appl Math & Stat, Dept Math Sci, Newark, NJ 07102 USA.
RP Choi, W (reprint author), Korea Adv Inst Sci & Technol, Div Ocean Syst Engn, Taejon 305701, South Korea.
EM wychoi1111@gmail.com
FU Korea Science and Engineering Foundation through the WCU program
[R31-2008-000-10045-0]
FX The authors gratefully acknowledge the support from the Korea Science
and Engineering Foundation through the WCU program (Grant No.
R31-2008-000-10045-0).
NR 36
TC 6
Z9 6
U1 1
U2 12
PU GAUTHIER-VILLARS/EDITIONS ELSEVIER
PI PARIS
PA 23 RUE LINOIS, 75015 PARIS, FRANCE
SN 0997-7546
J9 EUR J MECH B-FLUID
JI Eur. J. Mech. B-Fluids
PD SEP-OCT
PY 2013
VL 41
BP 11
EP 22
DI 10.1016/j.euromechflu.2013.04.001
PG 12
WC Mechanics; Physics, Fluids & Plasmas
SC Mechanics; Physics
GA 178AY
UT WOS:000321417700002
ER
PT J
AU Dimitrov, NB
Moffett, A
Morton, DP
Sarkar, S
AF Dimitrov, Nedialko B.
Moffett, Alexander
Morton, David P.
Sarkar, Sahotra
TI Selecting malaria interventions: A top-down approach
SO COMPUTERS & OPERATIONS RESEARCH
LA English
DT Article
DE Malaria intervention; Computing disease intervention strategies;
Integrated disease model; Supply center locations
ID INTERMITTENT PREVENTIVE TREATMENT; PLASMODIUM-FALCIPARUM MALARIA;
INSECTICIDE-TREATED NETS; INOCULATION RATES; AFRICA; TRANSMISSION;
BURDEN; MODELS; RISK; MALI
AB Malaria continues to be a great burden on both morbidity and mortality as well as economic development across the world. In highly endemic areas, such as Nigeria, malaria can claim hundreds of thousands of lives and millions of dollars yearly. Typically, when selecting intervention strategies to control malaria, research is focused on the cost-effectiveness and general applicability of individual interventions. In separate studies, great care is taken to develop high-fidelity models of malaria's economic and morbidity/mortality burden. In this paper, we take a top-down approach to selecting malaria intervention strategies. Instead of studying each element of the problem separately, we combine models for intervention cost-effectiveness, disease burden, and intervention delivery to create a single large-scale geographic optimization. We illustrate our top-down approach with a case study of malaria in Nigeria. Our optimization produces detailed geographic intervention plans, identifies key budget values and specifies the locations of the supply distribution centers. Published by Elsevier Ltd.
C1 [Dimitrov, Nedialko B.] USN, Postgrad Sch, Dept Operat Res, Monterey, CA 93943 USA.
[Moffett, Alexander; Sarkar, Sahotra] Univ Texas Austin, Sect Integrat Biol, Austin, TX 78712 USA.
[Morton, David P.] Univ Texas Austin, Grad Program Operat Res, Austin, TX 78712 USA.
RP Dimitrov, NB (reprint author), USN, Postgrad Sch, Dept Operat Res, 1 Univ Circle, Monterey, CA 93943 USA.
EM ned.dimitrov@gmail.com; amoffett@mail.utexas.edu;
morton@mail.utexas.edu; sarkar@mail.utexas.edu
RI Morton, David/K-2388-2014
FU National Science Foundation [CMMI-0653916, CMMI-0800676]; Defense Threat
Reduction Agency [HDTRA1-08-1-0029]
FX This work has been supported by the National Science Foundation through
grants CMMI-0653916 and CMMI-0800676 and the Defense Threat Reduction
Agency through grant HDTRA1-08-1-0029.
NR 66
TC 1
Z9 1
U1 1
U2 25
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0305-0548
EI 1873-765X
J9 COMPUT OPER RES
JI Comput. Oper. Res.
PD SEP
PY 2013
VL 40
IS 9
SI SI
BP 2229
EP 2240
DI 10.1016/j.cor.2011.07.023
PG 12
WC Computer Science, Interdisciplinary Applications; Engineering,
Industrial; Operations Research & Management Science
SC Computer Science; Engineering; Operations Research & Management Science
GA 159ZK
UT WOS:000320085600008
ER
PT J
AU Compton, R
Gerardi, HK
Weidinger, D
Brown, DJ
Dressick, WJ
Heilweil, EJ
Owrutsky, JC
AF Compton, Ryan
Gerardi, Helen K.
Weidinger, Daniel
Brown, Douglas J.
Dressick, Walter J.
Heilweil, Edwin J.
Owrutsky, Jeffrey C.
TI Spectra and relaxation dynamics of the pseudohalide (PS) vibrational
bands for Ru(bpy)(2)(PS)(2) complexes, PS = CN, NCS and N-3
SO CHEMICAL PHYSICS
LA English
DT Article
DE Vibrational relaxation; Organometallics; Ultrafast infrared; Ruthenium
polypyridine; Pseudohalide; Azide; Cyanide; Thiocyanate; Infrared
spectroscopy
ID TRANSFER EXCITED-STATES; ENERGY-GAP LAW; PHOTOPHYSICAL PROPERTIES;
INFRARED-SPECTROSCOPY; REVERSE MICELLES; AZIDE ION; POLYPYRIDINE
COMPLEXES; POPULATION RELAXATION; NANOCRYSTALLINE TIO2;
CARBONIC-ANHYDRASE
AB Static and transient infrared spectroscopy were used to investigate cis-Ru(bpy)(2)(N-3)(2) (bpy = 2,2'-bipyridine), cis-Ru(bpy)(2)(NCS)(2), and cis-Ru(bpy)(2)(CN)(2) in solution. The NC stretching IR band for cis-Ru(bpy)(2) (NCS)(2) appears at higher frequency (similar to 2106 cm (1) in DMSO) than for the free NCS anion while the IR bands for the azide and cyanide complexes are closer to those of the respective free anions. The vibrational energy relaxation (VER) lifetime for the azide complex is found to be much shorter (similar to 5 ps) than for either the NCS or CN species (both similar to 70 ps in DMSO) and the lifetimes resemble those for each corresponding free anion in solution. However, for cis-Ru(bpy)(2)(N-3)(2), it is determined that the transition frequency depends more on the solvent than the VER lifetime implying that intramolecular vibrational relaxation is predominant over solvent energy-extracting interactions. These results are compared to the behavior of other related metal complexes in solution. (C) 2012 Elsevier B. V. All rights reserved.
C1 [Compton, Ryan; Gerardi, Helen K.; Owrutsky, Jeffrey C.] Naval Res Lab, Div Chem, Washington, DC 20375 USA.
[Weidinger, Daniel] SRA Int, Fairfax, VA 22033 USA.
[Brown, Douglas J.] US Naval Acad, Dept Chem, Annapolis, MD 21402 USA.
[Dressick, Walter J.] Naval Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 USA.
[Heilweil, Edwin J.] NIST, Radiat & Biomol Phys Div, Phys Measurement Lab, Gaithersburg, MD 20899 USA.
RP Owrutsky, JC (reprint author), Naval Res Lab, Code 6111,4555 Overlook Ave SW, Washington, DC 20375 USA.
EM Jeff.Owrutsky@nrl.navy.mil
FU Office of Naval Research through the Naval Research Laboratory; NIST
STRS; National Research Council
FX This work was supported by the Office of Naval Research through the
Naval Research Laboratory and by NIST STRS internal funding. R. C. and
H. G. thank the National Research Council for administering the
postdoctoral fellowship program at NRL. The authors thank Joseph F.
Parker for assistance with the electrochemical measurements.
NR 64
TC 3
Z9 3
U1 3
U2 26
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0301-0104
J9 CHEM PHYS
JI Chem. Phys.
PD AUG 30
PY 2013
VL 422
SI SI
BP 135
EP 142
DI 10.1016/j.chemphys.2012.11.015
PG 8
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 216UF
UT WOS:000324309600018
ER
PT J
AU Phillips, JB
Youmans, PW
Muheim, R
Sloan, KA
Landler, L
Painter, MS
Anderson, CR
AF Phillips, John B.
Youmans, Paul W.
Muheim, Rachel
Sloan, Kelly A.
Landler, Lukas
Painter, Michael S.
Anderson, Christopher R.
TI Rapid Learning of Magnetic Compass Direction by C57BL/6 Mice in a
4-Armed 'Plus' Water Maze
SO PLOS ONE
LA English
DT Article
ID RADICAL-PAIR MECHANISM; NEWT NOTOPHTHALMUS-VIRIDESCENS; HEAD DIRECTION;
EUROPEAN ROBINS; SUBTERRANEAN RODENT; ANIMAL NAVIGATION;
GEOMAGNETIC-FIELD; PATH-INTEGRATION; MIGRATORY BIRDS; PLACE CELLS
AB Magnetoreception has been demonstrated in all five vertebrate classes. In rodents, nest building experiments have shown the use of magnetic cues by two families of molerats, Siberian hamsters and C57BL/6 mice. However, assays widely used to study rodent spatial cognition (e.g. water maze, radial arm maze) have failed to provide evidence for the use of magnetic cues. Here we show that C57BL/6 mice can learn the magnetic direction of a submerged platform in a 4-armed (plus) water maze. Naive mice were given two brief training trials. In each trial, a mouse was confined to one arm of the maze with the submerged platform at the outer end in a predetermined alignment relative to magnetic north. Between trials, the training arm and magnetic field were rotated by 180 degrees so that the mouse had to swim in the same magnetic direction to reach the submerged platform. The directional preference of each mouse was tested once in one of four magnetic field alignments by releasing it at the center of the maze with access to all four arms. Equal numbers of responses were obtained from mice tested in the four symmetrical magnetic field alignments. Findings show that two training trials are sufficient for mice to learn the magnetic direction of the submerged platform in a plus water maze. The success of these experiments may be explained by: (1) absence of alternative directional cues (2), rotation of magnetic field alignment, and (3) electromagnetic shielding to minimize radio frequency interference that has been shown to interfere with magnetic compass orientation of birds. These findings confirm that mice have a well-developed magnetic compass, and give further impetus to the question of whether epigeic rodents (e.g., mice and rats) have a photoreceptor-based magnetic compass similar to that found in amphibians and migratory birds.
C1 [Phillips, John B.; Youmans, Paul W.; Landler, Lukas; Painter, Michael S.] Virginia Tech, Dept Biol Sci, Blacksburg, VA 24061 USA.
[Muheim, Rachel] Lund Univ, Dept Funct Zool, Lund, Sweden.
[Sloan, Kelly A.] South Carolina Dept Nat Resources, Charleston, SC USA.
[Anderson, Christopher R.] US Naval Acad, Annapolis, MD USA.
RP Phillips, JB (reprint author), Virginia Tech, Dept Biol Sci, Blacksburg, VA 24061 USA.
EM jphillip@vt.edu
RI Landler, Lukas/D-6428-2013;
OI Landler, Lukas/0000-0002-5638-7924; Muheim, Rachel/0000-0002-2079-6443
FU National Science Foundation [IOS 07-48175]
FX Funding was provided by the National Science Foundation IOS 07-48175 (to
JP). The funders had no role in study design, data collection and
analysis, decision to publish, or preparation of the manuscript.
NR 79
TC 10
Z9 10
U1 3
U2 42
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 AUG 30
PY 2013
VL 8
IS 8
AR e73112
DI 10.1371/journal.pone.0073112
PG 11
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 211BX
UT WOS:000323880200069
PM 24023673
ER
PT J
AU Matis, BR
Houston, BH
Baldwin, JW
AF Matis, Bernard R.
Houston, Brian H.
Baldwin, Jeffrey W.
TI Low-energy resonant scattering from hydrogen impurities in graphene
SO PHYSICAL REVIEW B
LA English
DT Article
ID BAND-GAP
AB We study the electronic transport properties of graphene with covalently bonded hydrogen impurities. Our measurements reveal low-energy resonant scattering processes within the transport for each charge carrier type. The observed resonances exhibit a strong energy dependence and are accompanied by a sharp increase in the scattering cross section. The ability to observe the scattering resonances was found to depend on the amount of disorder introduced into the graphene through the bonding of hydrogen. The results are shown to be in agreement with a theory regarding low-energy resonant scattering off a short-range impurity in graphene that takes into account both intravalley and intervalley scattering. Theory dictates that the observed resonances are the result of the formation of quasibound states of the Dirac fermions in graphene due to a divergence in one or more of the scattering lengths for the short-range hydrogen impurity potential. We anticipate our experimental results to have implications in graphene valley physics as well as graphene chemical modification, scattering, and localization theories.
C1 [Matis, Bernard R.] Naval Res Lab, NRC Postdoctoral Associate, Washington, DC 20375 USA.
[Houston, Brian H.; Baldwin, Jeffrey W.] Naval Res Lab, Washington, DC 20375 USA.
RP Baldwin, JW (reprint author), Naval Res Lab, Code 7130, Washington, DC 20375 USA.
EM jeffrey.baldwin@nrl.navy.mil
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.
B. R. M. performed research courtesy of support from a National Research
Council postdoctoral fellowship. This work was supported by the Office
of Naval Research.
NR 28
TC 8
Z9 8
U1 2
U2 20
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 AUG 30
PY 2013
VL 88
IS 8
AR 085441
DI 10.1103/PhysRevB.88.085441
PG 5
WC Physics, Condensed Matter
SC Physics
GA 208WJ
UT WOS:000323712400009
ER
PT J
AU Sassi, F
Liu, HL
Ma, J
Garcia, RR
AF Sassi, Fabrizio
Liu, Han-Li
Ma, J.
Garcia, Rolando R.
TI The lower thermosphere during the northern hemisphere winter of 2009: A
modeling study using high-altitude data assimilation products in WACCM-X
SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
LA English
DT Article
DE stratospheric warming; lower thermosphere
ID ASYNOPTIC SATELLITE-OBSERVATIONS; STRATOSPHERIC SUDDEN WARMINGS; ROSSBY
NORMAL-MODES; UPPER-ATMOSPHERE; TRANSIENT-RESPONSE; WAVE INTERACTIONS;
PLANETARY-WAVES; SAMPLING THEORY; FIELD BEHAVIOR; 5-DAY WAVE
AB We present numerical simulations using the Whole Atmosphere Community Climate Model, extended version, constrained below 90km by a combination of NASA's Modern Era Retrospective Analysis for Research and Applications and the U.S. Navy's Operational Global Atmospheric Prediction System - Advanced Level Physics High Altitude assimilation products. The period examined is January and February 2009, when a large stratospheric warming occurred on 24 January 2009, with anomalous circulation persisting for several weeks after the event. In this study, we focus on the dynamical response of the lower thermosphere up to 200km. We find evidence of migrating and nonmigrating tides, Rossby and Rossby-gravity modes, and Kelvin waves, whose amplitudes appear to be modulated at the times leading and following the stratospheric warming. While the Rossby, Rossby-gravity, and Kelvin modes are rapidly dissipated in the lower thermosphere (above 110km), the tides maintain substantial amplitude throughout the thermosphere, but their vertical structure becomes external above about 120-150km. Most waves identified in the simulations decrease in amplitude in the thermosphere, indicating remote forcing from below and strong dissipation by molecular diffusion at high altitudes; however, the amplitude of the migrating DW1 tide increases in the thermosphere suggesting in situ forcing. We show that the amplitude of the tides (such as the DW1) changes as the background wind alters the vorticity in the tropics, which broadens or narrows the tropical waveguide. Our results also suggest that fast Rossby normal modes (periods10days) are excited by instability of the zonal-mean wind distribution following the stratospheric warming.
C1 [Sassi, Fabrizio] Naval Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Liu, Han-Li] Natl Ctr Atmospher Res, High Altitude Observ, Boulder, CO 80307 USA.
[Ma, J.] Computat Phys Inc, Springfield, VA USA.
[Garcia, Rolando R.] Natl Ctr Atmospher Res, Div Atmospher Chem, Boulder, CO 80307 USA.
RP Sassi, F (reprint author), Naval Res Lab, Div Space Sci, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM fabrizio.sassi@nrl.navy.mil
RI Liu, Han-Li/A-9549-2008;
OI Liu, Han-Li/0000-0002-6370-0704; Sassi, Fabrizio/0000-0002-9492-7434
FU NASA/LWS [NNH12AT21I]; NASA [X09AJ83G]; Office of Naval Research under
the ISES (Integrating Sun and Earth Systems) project [6.1]; U.S.
National Science Foundation
FX FS and HL were partially supported by NASA/LWS grant NNH12AT21I. RG was
partially supported by NASA grant X09AJ83G. FS acknowledges also the
support of 6.1 funding from the Office of Naval Research under the ISES
(Integrating Sun and Earth Systems) project. The National Center for
Atmospheric Research is sponsored by the U.S. National Science
Foundation. This work was supported in part by a grant of computer time
from the DOD High Performance Computing Modernization Program at the US
Navy DOD Supercomputing Resource Center (NAVO).
NR 69
TC 21
Z9 21
U1 0
U2 6
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 AUG 27
PY 2013
VL 118
IS 16
BP 8954
EP 8968
DI 10.1002/jgrd.50632
PG 15
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 225AE
UT WOS:000324933900014
ER
PT J
AU Roh, JH
Tyagi, M
Hogan, TE
Roland, CM
AF Roh, J. H.
Tyagi, M.
Hogan, T. E.
Roland, C. M.
TI Space-Dependent Dynamics in 1,4-Polybutadiene Nanocomposite
SO MACROMOLECULES
LA English
DT Editorial Material
ID NEUTRON-SCATTERING; GLASS-TRANSITION; MOLECULAR-WEIGHT; POLYMERS;
POLYBUTADIENE; RELAXATION; LIQUIDS; ALPHA
C1 [Roh, J. H.; Roland, C. M.] USN, Res Lab, Div Chem, Washington, DC 20375 USA.
[Tyagi, M.] NIST, Ctr Neutron Res, Gaithersburg, MD 20899 USA.
[Hogan, T. E.] Bridgestone Amer, Ctr Res & Technol, Akron, OH 44317 USA.
[Tyagi, M.] Univ Maryland, Dept Mat Sci & Engn, College Pk, MD 20742 USA.
RP Roland, CM (reprint author), USN, Res Lab, Div Chem, Code 6120, Washington, DC 20375 USA.
EM mike.roland@nrl.navy.mil
RI Tyagi, Madhu Sudan/M-4693-2014
OI Tyagi, Madhu Sudan/0000-0002-4364-7176
NR 26
TC 7
Z9 7
U1 0
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 AUG 27
PY 2013
VL 46
IS 16
BP 6667
EP 6669
DI 10.1021/ma401597r
PG 3
WC Polymer Science
SC Polymer Science
GA 210EC
UT WOS:000323811100032
ER
PT J
AU Alidoust, M
Halterman, K
Linder, J
AF Alidoust, Mohammad
Halterman, Klaus
Linder, Jacob
TI Singlet-triplet superconducting quantum magnetometer
SO PHYSICAL REVIEW B
LA English
DT Article
ID FERROMAGNET STRUCTURES; SUPERCURRENTS; JUNCTIONS; MODEL
AB Motivated by the recent experimental realization of a quantum interference transistor based on the superconducting proximity effect, we here demonstrate that the inclusion of a textured ferromagnet both strongly enhances the flux sensitivity of such a device and additionally allows for singlet-triplet switching by tuning a bias voltage. This functionality makes explicit use of the induced spin-triplet correlations due to the magnetic texture. Whereas the existence of such triplet correlations is well known, our finding demonstrates how spin-triplet superconductivity may be utilized for concrete technology, namely, to improve the functionality of ultrasensitive magnetometers.
C1 [Alidoust, Mohammad; Linder, Jacob] Norwegian Univ Sci & Technol, Dept Phys, N-7491 Trondheim, Norway.
[Halterman, Klaus] Naval Air Warfare Ctr, Michelson Lab, Div Phys, China Lake, CA 93555 USA.
RP Alidoust, M (reprint author), Norwegian Univ Sci & Technol, Dept Phys, N-7491 Trondheim, Norway.
EM phymalidoust@gmail.com; klaus.halterman@navy.mil; jacob.linder@ntnu.no
RI Linder, Jacob/B-9606-2014;
OI Halterman, Klaus/0000-0002-6355-3134; Alidoust,
Mohammad/0000-0002-1554-687X
FU IARPA; DOD HPCMP; COST Action [MP-1201]
FX K.H. is supported in part by IARPA and by a grant of supercomputer
resources provided by the DOD HPCMP. J.L. was supported by the COST
Action MP-1201 "Novel Functionalities through Optimized Confinement of
Condensate and Fields."
NR 36
TC 8
Z9 8
U1 0
U2 17
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 AUG 27
PY 2013
VL 88
IS 7
AR 075435
DI 10.1103/PhysRevB.88.075435
PG 5
WC Physics, Condensed Matter
SC Physics
GA 207NQ
UT WOS:000323608700005
ER
PT J
AU Glinka, YD
Sun, Z
Erementchouk, M
Leuenberger, MN
Bristow, AD
Cundiff, ST
Bracker, AS
Li, XQ
AF Glinka, Yuri D.
Sun, Zheng
Erementchouk, Mikhail
Leuenberger, Michael N.
Bristow, Alan D.
Cundiff, Steven T.
Bracker, Allan S.
Li, Xiaoqin
TI Coherent coupling between exciton resonances governed by the disorder
potential
SO PHYSICAL REVIEW B
LA English
DT Article
ID NONLINEAR-OPTICAL RESPONSE; QUANTUM-WELLS; 4-WAVE-MIXING SPECTROSCOPY;
ENERGY-TRANSFER; GAAS; EXCITATION; SEMICONDUCTORS; LOCALIZATION;
INTERFACES; MECHANICS
AB Monolayer fluctuations in the thickness of a semiconductor quantum well (QW) lead to the formation of spectrally resolved excitons located in the narrower, average, and thicker regions of the QW. Whether or not these excitons are coherently coupled via Coulomb interaction is a long-standing debate. We demonstrate that different types of disorder potential govern coherent coupling among excitons, and the coupling strength can be quantitatively measured using optical two-dimensional Fourier transform spectroscopy. Strong coherent coupling occurs between certain types of excitons but is missing between other types of excitons because the distinctive nature of excitons results in different spatial overlap. Our finding may be applicable to other disordered systems, such as photosynthesis and conjugated polymers, where exciton coupling plays a critical role in determining charge and energy transfer.
C1 [Glinka, Yuri D.; Sun, Zheng; Li, Xiaoqin] Univ Texas Austin, Dept Phys, Austin, TX 78712 USA.
[Glinka, Yuri D.] Natl Acad Sci Ukraine, Inst Phys, UA-03028 Kiev, Ukraine.
[Erementchouk, Mikhail; Leuenberger, Michael N.] Univ Cent Florida, NanoSci Technol Ctr, Orlando, FL 32826 USA.
[Erementchouk, Mikhail; Leuenberger, Michael N.] Univ Cent Florida, Dept Phys, Orlando, FL 32826 USA.
[Bristow, Alan D.; Cundiff, Steven T.] Univ Colorado, JILA, Boulder, CO 80309 USA.
[Bristow, Alan D.; Cundiff, Steven T.] NIST, Boulder, CO 80309 USA.
[Bristow, Alan D.] W Virginia Univ, Dept Phys & Astron, Morgantown, WV 26506 USA.
[Bracker, Allan S.] Naval Res Lab, Washington, DC 20375 USA.
RP Li, XQ (reprint author), Univ Texas Austin, Dept Phys, Austin, TX 78712 USA.
EM elaineli@physics.utexas.edu
RI Sun, Zheng/J-6269-2013; Leuenberger, Michael/L-4501-2013; Cundiff,
Steven/B-4974-2009;
OI Cundiff, Steven/0000-0002-7119-5197; Erementchouk,
Mikhail/0000-0002-4603-1836
FU National Science Foundation (NSF) [DMR-0747822]; Welch Foundation
[F-1662, ARO-W911NF-08-1-0348]; Alfred P. Sloan Foundation; NSF
[ECCS-0901784, ECCS-1128597]; AFOSR [FA9550-09-1-0450]
FX Authors at the University of Texas, Austin, gratefully acknowledge
financial support from the following sources: National Science
Foundation (NSF) DMR-0747822, Welch Foundation F-1662,
ARO-W911NF-08-1-0348, and the Alfred P. Sloan Foundation. M.N.L.
acknowledges support from NSF (Grant No. ECCS-0901784), AFOSR (Grant No.
FA9550-09-1-0450), and NSF (Grant No. ECCS-1128597).
NR 49
TC 2
Z9 2
U1 1
U2 29
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 AUG 27
PY 2013
VL 88
IS 7
AR 075316
DI 10.1103/PhysRevB.88.075316
PG 7
WC Physics, Condensed Matter
SC Physics
GA 207NQ
UT WOS:000323608700002
ER
PT J
AU Kanaev, AV
Miller, CW
AF Kanaev, A. V.
Miller, C. W.
TI Multi-frame super-resolution algorithm for complex motion patterns
SO OPTICS EXPRESS
LA English
DT Article
ID OPTICAL-FLOW ESTIMATION; VIDEO SUPER RESOLUTION
AB Multi-frame super-resolution algorithms offer resolution enhancement for sequences of images with sampling limited resolution. However, classical approaches have been constrained by the accuracy of motion estimation while nonlocal approaches that use implicit motion estimation have attained only modest resolution improvement. In this paper, we propose a new multi-frame optical flow based super-resolution algorithm, which provides significant resolution enhancement for image sequences containing complex motion. The algorithm uses the standard camera image formation model and a variational super-resolution formulation with an anisotropic smoothness term adapting to local image structures. The key elements enabling super-resolution of complex motion patterns are the computation of two-way optical flow between the images and use of two corresponding uncertainty measures that approximate the optical flow interpolation error. Using the developed algorithm, we are able to demonstrate super-resolution of images for which optical flow estimation experiences near breakdown, due to the complexity of the motion patterns and the large magnitudes of the displacements. In comparison, we show that for these images some conventional super-resolution approaches fail, while others including nonlocal super-resolution technique produce distortions and provide lower (1-1.8dB) image quality enhancement compared to the proposed algorithm. (C) 2013 Optical Society of America
C1 [Kanaev, A. V.; Miller, C. W.] Naval Res Lab, Washington, DC 20375 USA.
RP Kanaev, AV (reprint author), Naval Res Lab, 4555 Overlook Ave, Washington, DC 20375 USA.
EM andrey.kanaev@nrl.navy.mil
NR 24
TC 8
Z9 8
U1 0
U2 17
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 AUG 26
PY 2013
VL 21
IS 17
BP 19850
EP 19866
DI 10.1364/OE.21.019850
PG 17
WC Optics
SC Optics
GA 210KD
UT WOS:000323830500041
PM 24105533
ER
PT J
AU DeRuiter, SL
Southall, BL
Calambokidis, J
Zimmer, WMX
Sadykova, D
Falcone, EA
Friedlaender, AS
Joseph, JE
Moretti, D
Schorr, GS
Thomas, L
Tyack, PL
AF DeRuiter, Stacy L.
Southall, Brandon L.
Calambokidis, John
Zimmer, Walter M. X.
Sadykova, Dinara
Falcone, Erin A.
Friedlaender, Ari S.
Joseph, John E.
Moretti, David
Schorr, Gregory S.
Thomas, Len
Tyack, Peter L.
TI First direct measurements of behavioural responses by Cuvier's beaked
whales to mid-frequency active sonar
SO BIOLOGY LETTERS
LA English
DT Article
DE acoustic disturbance; avoidance response; anthropogenic noise;
mid-frequency active sonar; military; Ziphius cavirostris
ID MILITARY; MAMMALS
AB Most marine mammal strandings coincident with naval sonar exercises have involved Cuvier's beaked whales (Ziphius cavirostris). We recorded animal movement and acoustic data on two tagged Ziphius and obtained the first direct measurements of behavioural responses of this species to mid-frequency active (MFA) sonar signals. Each recording included a 30-min playback (one 1.6-s simulated MFA sonar signal repeated every 25 s); one whale was also incidentally exposed to MFA sonar from distant naval exercises. Whales responded strongly to playbacks at low received levels (RLs; 89-127 dB re 1 mu Pa): after ceasing normal fluking and echolocation, they swam rapidly, silently away, extending both dive duration and subsequent non-foraging interval. Distant sonar exercises (78-106 dB re 1 mu Pa) did not elicit such responses, suggesting that context may moderate reactions. The observed responses to playback occurred at RLs well below current regulatory thresholds; equivalent responses to operational sonars could elevate stranding risk and reduce foraging efficiency.
C1 [DeRuiter, Stacy L.; Sadykova, Dinara; Thomas, Len] Univ St Andrews, Scottish Oceans Inst, Ctr Res Ecol & Environm Modelling, St Andrews, Fife, Scotland.
[Moretti, David; Tyack, Peter L.] Univ St Andrews, Sch Biol, Scottish Oceans Inst, St Andrews, Fife, Scotland.
[Moretti, David; Tyack, Peter L.] Univ St Andrews, Scottish Oceans Inst, Sea Mammal Res Unit, St Andrews, Fife, Scotland.
[Southall, Brandon L.; Friedlaender, Ari S.] Southall Environm Associates Inc, Aptos, CA USA.
[Southall, Brandon L.; Friedlaender, Ari S.] Univ Calif Santa Cruz, Long Marine Lab, Santa Cruz, CA 95064 USA.
[Southall, Brandon L.; Friedlaender, Ari S.] Duke Univ, Nicholas Sch Environm, Beaufort, NC USA.
[Calambokidis, John; Falcone, Erin A.; Schorr, Gregory S.] Cascadia Res Collect, Olympia, WA USA.
[Zimmer, Walter M. X.] NATO Sci & Technol Org, Ctr Maritime Res & Expt STO CMRE, La Spezia, Italy.
[Joseph, John E.] Naval Postgrad Sch, Dept Oceanog, Monterey, CA USA.
[Moretti, David] Naval Undersea Warfare Ctr, Newport, RI USA.
RP Southall, BL (reprint author), Southall Environm Associates Inc, Aptos, CA USA.
EM brandon.southall@sea-inc.net
OI DeRuiter, Stacy/0000-0002-0571-0306; Thomas, Len/0000-0002-7436-067X
FU US Navy Chief of Naval Operations, Environmental Readiness Program;
Office of Naval Research; MASTS pooling initiative (Marine Alliance for
Science and Technology for Scotland); Scottish Funding Council [HR09011]
FX The authors gratefully acknowledge the work of the R. V. Truth crew and
the SOCAL10-11 science parties, especially Annie Douglas and Todd
Pusser; Catriona Harris and Sascha Hooker for helpful comments; Mark
Johnson and Leigh Hickmott for providing Mediterranean datasets and
Robin Baird for Hawai'i datasets. This work was supported by the US Navy
Chief of Naval Operations, Environmental Readiness Program; the Office
of Naval Research and the MASTS pooling initiative (Marine Alliance for
Science and Technology for Scotland; supported by the Scottish Funding
Council (grant reference HR09011) and contributing institutions).
Experiments were performed under NMFS permit no. 14534 (B. Southall,
principal investigator). Data available from Dryad repository,
doi:10.5061/dryad.n77k3.
NR 20
TC 50
Z9 50
U1 11
U2 93
PU ROYAL SOC
PI LONDON
PA 6-9 CARLTON HOUSE TERRACE, LONDON SW1Y 5AG, ENGLAND
SN 1744-9561
J9 BIOL LETTERS
JI Biol. Lett.
PD AUG 23
PY 2013
VL 9
IS 4
AR 20130223
DI 10.1098/rsbl.2013.0223
PG 5
WC Biology; Ecology; Evolutionary Biology
SC Life Sciences & Biomedicine - Other Topics; Environmental Sciences &
Ecology; Evolutionary Biology
GA 179ZZ
UT WOS:000321563600020
PM 23825085
ER
PT J
AU Goldbogen, JA
Southall, BL
DeRuiter, SL
Calambokidis, J
Friedlaender, AS
Hazen, EL
Falcone, EA
Schorr, GS
Douglas, A
Moretti, DJ
Kyburg, C
McKenna, MF
Tyack, PL
AF Goldbogen, Jeremy A.
Southall, Brandon L.
DeRuiter, Stacy L.
Calambokidis, John
Friedlaender, Ari S.
Hazen, Elliott L.
Falcone, Erin A.
Schorr, Gregory S.
Douglas, Annie
Moretti, David J.
Kyburg, Chris
McKenna, Megan F.
Tyack, Peter L.
TI Blue whales respond to simulated mid-frequency military sonar
SO PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
LA English
DT Article
DE blue whale; military sonar; underwater noise; sensory ecology; foraging;
bio-logging
ID ACOUSTIC RECORDING TAG; BEAKED-WHALES; MARINE MAMMALS; BALEEN WHALES;
CETACEANS; BEHAVIOR; LUNGE; SOUND; STRATEGIES; PREDATOR
AB Mid-frequency military (1-10 kHz) sonars have been associated with lethal mass strandings of deep-diving toothed whales, but the effects on endangered baleen whale species are virtually unknown. Here, we used controlled exposure experiments with simulated military sonar and other mid-frequency sounds to measure behavioural responses of tagged blue whales (Balaenoptera musculus) in feeding areas within the Southern California Bight. Despite using source levels orders of magnitude below some operational military systems, our results demonstrate that mid-frequency sound can significantly affect blue whale behaviour, especially during deep feeding modes. When a response occurred, behavioural changes varied widely from cessation of deep feeding to increased swimming speed and directed travel away from the sound source. The variability of these behavioural responses was largely influenced by a complex interaction of behavioural state, the type of mid-frequency sound and received sound level. Sonar-induced disruption of feeding and displacement from high-quality prey patches could have significant and previously undocumented impacts on baleen whale foraging ecology, individual fitness and population health.
C1 [Goldbogen, Jeremy A.; Calambokidis, John; Falcone, Erin A.; Schorr, Gregory S.; Douglas, Annie] Cascadia Res Collect, Olympia, WA 98501 USA.
[Southall, Brandon L.; Friedlaender, Ari S.] Southall Environm Associates Inc, Aptos, CA 95003 USA.
[Southall, Brandon L.; Friedlaender, Ari S.; Hazen, Elliott L.] Univ Calif Santa Cruz, Inst Marine Sci, Long Marine Lab, Santa Cruz, CA 95060 USA.
[Friedlaender, Ari S.; Hazen, Elliott L.] Duke Univ, Marine Lab, Beaufort, NC 28516 USA.
[Hazen, Elliott L.] Natl Ocean & Atmospher Adm, Pacific Grove, CA USA.
[Moretti, David J.] USN, Ctr Underwater Syst, Div Newport, Newport, RI USA.
[Kyburg, Chris] Spawar Syst Ctr, San Diego, CA 92152 USA.
[McKenna, Megan F.] Natl Pk Serv, Ft Collins, CO 80525 USA.
[DeRuiter, Stacy L.] Univ St Andrews, CREEM, St Andrews KY16 9LZ, Fife, Scotland.
[Tyack, Peter L.] Univ St Andrews, Scottish Oceans Inst, Sea Mammal Res Unit, St Andrews KY16 9LZ, Fife, Scotland.
RP Goldbogen, JA (reprint author), Cascadia Res Collect, 218 1-2 W 4th Ave, Olympia, WA 98501 USA.
EM jgoldbogen@gmail.com; brandon.southall@sea-inc.net
RI Hazen, Elliott/G-4149-2014;
OI Hazen, Elliott/0000-0002-0412-7178; DeRuiter, Stacy/0000-0002-0571-0306
FU Naval Operations Environmental Readiness Division; Office of Naval
Research
FX Funding provided by Chief of Naval Operations Environmental Readiness
Division and the Office of Naval Research.
NR 43
TC 47
Z9 47
U1 21
U2 199
PU ROYAL SOC
PI LONDON
PA 6-9 CARLTON HOUSE TERRACE, LONDON SW1Y 5AG, ENGLAND
SN 0962-8452
J9 P ROY SOC B-BIOL SCI
JI Proc. R. Soc. B-Biol. Sci.
PD AUG 22
PY 2013
VL 280
IS 1765
AR 20130657
DI 10.1098/rspb.2013.0657
PG 8
WC Biology; Ecology; Evolutionary Biology
SC Life Sciences & Biomedicine - Other Topics; Environmental Sciences &
Ecology; Evolutionary Biology
GA 175TH
UT WOS:000321255700009
PM 23825206
ER
PT J
AU Cara, M
Perlman, ES
Uchiyama, Y
Cheung, CC
Coppi, PS
Georganopoulos, M
Worrall, DM
Birkinshaw, M
Sparks, WB
Marshall, HL
Stawarz, L
Begelman, MC
O'Dea, CP
Baum, SA
AF Cara, Mihai
Perlman, Eric S.
Uchiyama, Yasunobu
Cheung, Chi C.
Coppi, Paolo S.
Georganopoulos, Markos
Worrall, Diana M.
Birkinshaw, Mark
Sparks, William B.
Marshall, Herman L.
Stawarz, Lukasz
Begelman, Mitchell C.
O'Dea, Christopher P.
Baum, Stefi A.
TI POLARIMETRY AND THE HIGH-ENERGY EMISSION MECHANISMS IN QUASAR JETS: THE
CASE OF PKS 1136-135
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE galaxies: jets; magnetic fields; polarization; quasars: general;
quasars: individual (PKS 1136-135)
ID X-RAY-EMISSION; ACTIVE GALACTIC NUCLEI; HUBBLE-SPACE-TELESCOPE;
LARGE-SCALE JETS; EXTRAGALACTIC RADIO-SOURCES; LINEAR-POLARIZATION; M87
JET; PARTICLE-ACCELERATION; CHANDRA OBSERVATIONS; COMPTON-SCATTERING
AB Since the discovery of kiloparsec-scale X-ray emission from quasar jets, the physical processes responsible for their high-energy emission have been poorly defined. A number of mechanisms are under active debate, including synchrotron radiation, inverse-Comptonized cosmic microwave background (IC/CMB) emission, and other Comptonization processes. In a number of cases, the optical and X-ray emission of jet regions are inked by a single spectral component, and in those, high-resolution multi-band imaging and polarimetry can be combined to yield a powerful diagnostic of jet emission processes. Here we report on deep imaging photometry of the jet of PKS 1136-135 obtained with the Hubble Space Telescope. We find that several knots are highly polarized in the optical, with fractional polarization Pi > 30%. When combined with the broadband spectral shape observed in these regions, this is very difficult to explain via IC/CMB models, unless the scattering particles are at the lowest-energy tip of the electron energy distribution, with Lorentz factor gamma similar to 1, and the jet is also very highly beamed (delta >= 20) and viewed within a few degrees of the line of sight. We discuss both the IC/CMB and synchrotron interpretation of the X-ray emission in the light of this new evidence, presenting new models of the spectral energy distribution and also the matter content of this jet. The high polarizations do not completely rule out the possibility of IC/CMB optical-to-X-ray emission in this jet, but they do strongly disfavor the model. We discuss the implications of this finding, and also the prospects for future work.
C1 [Cara, Mihai; Perlman, Eric S.] Florida Inst Technol, Dept Phys & Space Sci, Melbourne, FL 32901 USA.
[Uchiyama, Yasunobu] Stanford Univ, SLAC KIPAC, Menlo Pk, CA 94025 USA.
[Cheung, Chi C.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Coppi, Paolo S.] Yale Univ, Dept Astron, New Haven, CT 06520 USA.
[Georganopoulos, Markos] Univ Maryland, Dept Phys, Baltimore, MD 21250 USA.
[Worrall, Diana M.; Birkinshaw, Mark] Univ Bristol, Dept Phys, Bristol BS8 1TL, Avon, England.
[Sparks, William B.] Space Telescope Sci Inst, Baltimore, MD 21218 USA.
[Marshall, Herman L.] MIT, Kavli Inst Astrophys & Space Res, Cambridge, MA 02139 USA.
[Stawarz, Lukasz] JAXA, Inst Space Astronaut Sci, Chuo Ku, Sagamihara, Kanagawa 2525210, Japan.
[Stawarz, Lukasz] Jagiellonian Univ, Astron Observ, PL-30244 Krakow, Poland.
[Begelman, Mitchell C.] Univ Colorado, Dept Astrophys & Planetary Sci, Boulder, CO 80309 USA.
[O'Dea, Christopher P.] Rochester Inst Technol, Sch Phys & Astron, Lab Multiwavelength Astrophys, Rochester, NY 14623 USA.
[Baum, Stefi A.] Rochester Inst Technol, Chester F Carlson Ctr Imaging Sci, Rochester, NY 14623 USA.
RP Cara, M (reprint author), Case Western Reserve Univ, Dept Phys, 2076 Adelbert Rd, Cleveland, OH 44106 USA.
OI Perlman, Eric/0000-0002-3099-1664
FU NASA at UMBC [NNG05-GD63DG]; NASA at FIT [NNX07-AM17G]; HST
[STGO-11138]; NRL by a Karles' Fellowship; NASA DPR [S-15633-Y]; Polish
NSC [DEC-2012/04/A/ST9/00083]
FX The National Radio Astronomy Observatory is a facility of the National
Science Foundation operated under cooperative agreement by Associated
Universities, Inc. E.S.P., M.C., and M.G. acknowledge support from NASA
grants NNG05-GD63DG at UMBC and NNX07-AM17G at FIT, and HST grant
STGO-11138. C.C.C. was supported at NRL by a Karles' Fellowship and NASA
DPR S-15633-Y. L.S. was supported by Polish NSC grant
DEC-2012/04/A/ST9/00083.
NR 73
TC 8
Z9 8
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 AUG 20
PY 2013
VL 773
IS 2
AR 186
DI 10.1088/0004-637X/773/2/186
PG 13
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 205EU
UT WOS:000323426100105
ER
PT J
AU Paterno-Mahler, R
Blanton, EL
Randall, SW
Clarke, TE
AF Paterno-Mahler, R.
Blanton, E. L.
Randall, S. W.
Clarke, T. E.
TI DEEP CHANDRA OBSERVATIONS OF THE EXTENDED GAS SLOSHING SPIRAL IN A2029
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE galaxies: clusters: general; galaxies: clusters: individual (A2029);
galaxies: clusters: intracluster medium; X-rays: galaxies: clusters
ID KELVIN-HELMHOLTZ INSTABILITIES; RELAXED GALAXY CLUSTERS; ACTIVE GALACTIC
NUCLEI; COLD FRONTS; COOLING FLOWS; RADIO-SOURCES; XMM-NEWTON; MERGING
CLUSTERS; PERSEUS CLUSTER; ABELL CLUSTERS
AB Recent X-ray observations of galaxy clusters have shown that there is substructure present in the intracluster medium (ICM), even in clusters that are seemingly relaxed. This substructure is sometimes a result of sloshing of the ICM, which occurs in cool core clusters that have been disturbed by an off-axis merger with a sub-cluster or group. We present deep Chandra observations of the cool core cluster Abell 2029, which has a sloshing spiral extending radially outward from the center of the cluster to approximately 400 kpc at its fullest extent-the largest continuous spiral observed to date. We find a surface brightness excess, a temperature decrement, a density enhancement, an elemental abundance enhancement, and a smooth pressure profile in the area of the spiral. The sloshing gas seems to be interacting with the southern lobe of the central radio galaxy, causing it to bend and giving the radio source a wide-angle tail (WAT) morphology. This shows that WATs can be produced in clusters that are relatively relaxed on large scales. We explore the interaction between heating and cooling in the central region of the cluster. Energy injection from the active galactic nucleus is likely insufficient to offset the cooling, and sloshing may be an important additional mechanism in preventing large amounts of gas from cooling to very low temperatures.
C1 [Paterno-Mahler, R.; Blanton, E. L.] Boston Univ, Dept Astron, Boston, MA 02215 USA.
[Paterno-Mahler, R.; Blanton, E. L.] Boston Univ, Inst Astrophys Res, Boston, MA 02215 USA.
[Randall, S. W.] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA.
[Clarke, T. E.] Naval Res Lab, Washington, DC 20375 USA.
RP Paterno-Mahler, R (reprint author), Boston Univ, Dept Astron, 725 Commonwealth Ave, Boston, MA 02215 USA.
EM rachelpm@bu.edu; eblanton@bu.edu; srandall@head.cfa.harvard.edu;
tracy.clarke@nrl.navy.mil
RI Blanton, Elizabeth/H-4501-2014;
OI Randall, Scott/0000-0002-3984-4337
FU Alfred P. Sloan Foundation; National Science Foundation; U.S. Department
of Energy Office of Science; University of Arizona; Brazilian
Participation Group; Brookhaven National Laboratory; University of
Cambridge; Carnegie Mellon University; University of Florida; French
Participation Group; German Participation Group; Harvard University;
Instituto de Astrofisica de Canarias; Michigan State/Notre Dame/JINA
Participation Group; Johns Hopkins University; Lawrence Berkeley
National Laboratory; Max Planck Institute for Astrophysics; Max Planck
Institute for Extraterrestrial Physics; New Mexico State University; New
York University; Ohio State University; Pennsylvania State University;
University of Portsmouth; Princeton University; Spanish Participation
Group; University of Tokyo; University of Utah; Vanderbilt University;
University of Virginia; University of Washington; Yale University
FX Funding for SDSS-III has been provided by the Alfred P. Sloan
Foundation, the Participating Institutions, the National Science
Foundation, and the U.S. Department of Energy Office of Science. The
SDSS-III Web site is http://www.sdss3.org/.; SDSS-III is managed by the
Astrophysical Research Consortium for the Participating Institutions of
the SDSS-III Collaboration including the University of Arizona, the
Brazilian Participation Group, Brookhaven National Laboratory,
University of Cambridge, Carnegie Mellon University, University of
Florida, the French Participation Group, the German Participation Group,
Harvard University, the Instituto de Astrofisica de Canarias, the
Michigan State/Notre Dame/JINA Participation Group, Johns Hopkins
University, Lawrence Berkeley National Laboratory, Max Planck Institute
for Astrophysics, Max Planck Institute for Extraterrestrial Physics, New
Mexico State University, New York University, Ohio State University,
Pennsylvania State University, University of Portsmouth, Princeton
University, the Spanish Participation Group, University of Tokyo,
University of Utah, Vanderbilt University, University of Virginia,
University of Washington, and Yale University.
NR 60
TC 18
Z9 18
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 AUG 20
PY 2013
VL 773
IS 2
AR 114
DI 10.1088/0004-637X/773/2/114
PG 13
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 205EU
UT WOS:000323426100033
ER
PT J
AU Shen, CC
Reeves, KK
Raymond, JC
Murphy, NA
Ko, YK
Lin, J
Mikic, Z
Linker, JA
AF Shen, Chengcai
Reeves, Katharine K.
Raymond, John C.
Murphy, Nicholas A.
Ko, Yuan-Kuen
Lin, Jun
Mikic, Zoran
Linker, Jon A.
TI NON-EQUILIBRIUM IONIZATION MODELING OF THE CURRENT SHEET IN A SIMULATED
SOLAR ERUPTION
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE atomic processes; magnetic reconnection; Sun: coronal mass ejections
(CMEs); Sun: UV radiation
ID CORONAL MASS EJECTION; MAGNETIC RECONNECTION; ULTRAVIOLET-SPECTRA; SOHO
OBSERVATIONS; CHARGE STATES; PLASMA; FLARES; EVOLUTION; FEATURES;
SPECTROMETER
AB The current sheet that extends from the top of flare loops and connects to an associated flux rope is a common structure in models of coronal mass ejections (CMEs). To understand the observational properties of CME current sheets, we generated predictions from a flare/CME model to be compared with observations. We use a simulation of a large-scale CME current sheet previously reported by Reeves et al. This simulation includes ohmic and coronal heating, thermal conduction, and radiative cooling in the energy equation. Using the results of this simulation, we perform time-dependent ionization calculations of the flow in a CME current sheet and construct two-dimensional spatial distributions of ionic charge states for multiple chemical elements. We use the filter responses from the Atmospheric Imaging Assembly (AIA) on the Solar Dynamics Observatory and the predicted intensities of emission lines to compute the count rates for each of the AIA bands. The results show differences in the emission line intensities between equilibrium and non-equilibrium ionization. The current sheet plasma is underionized at low heights and overionized at large heights. At low heights in the current sheet, the intensities of the AIA 94 angstrom and 131 angstrom channels are lower for non-equilibrium ionization than for equilibrium ionization. At large heights, these intensities are higher for non-equilibrium ionization than for equilibrium ionization inside the current sheet. The assumption of ionization equilibrium would lead to a significant underestimate of the temperature low in the current sheet and overestimate at larger heights. We also calculate the intensities of ultraviolet lines and predict emission features to be compared with events from the Ultraviolet Coronagraph Spectrometer on the Solar and Heliospheric Observatory, including a low-intensity region around the current sheet corresponding to this model.
C1 [Shen, Chengcai; Reeves, Katharine K.; Raymond, John C.; Murphy, Nicholas A.] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA.
[Shen, Chengcai; Lin, Jun] Chinese Acad Sci, Yunnan Astron Observ, Kunming 650011, Yunnan, Peoples R China.
[Shen, Chengcai] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China.
[Ko, Yuan-Kuen] Naval Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Mikic, Zoran; Linker, Jon A.] Predict Sci Inc PSI, San Diego, CA 92121 USA.
RP Shen, CC (reprint author), Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA.
RI Reeves, Katharine/P-9163-2014; LIN, JUN/B-9890-2017;
OI Murphy, Nicholas/0000-0001-6628-8033
FU NASA [NNX11AB61G, NNH11AQ13I]; NSF SHINE [AGS-1156076]; Program 973
[2011CB811403, 2013CBA01503]; NSFC [11273055]; CAS [KJCX2-EW-T07]; NASA
(Heliophysics theory program); NSF (Frontiers in Earth System Dynamics)
FX The authors appreciate the referee for valuable comments and suggestions
that helped improve this paper. This research was supported by NASA
grant NNX11AB61G, NNH11AQ13I and NSF SHINE grant AGS-1156076 to the
Smithsonian Astrophysical Observatory. This work was also supported by
Program 973 grants 2011CB811403 and 2013CBA01503, NSFC grant 11273055,
and CAS grant KJCX2-EW-T07 to the Yunnan Astronomical Observatory.
J.A.L. and Z.M. were supported by NASA (Heliophysics theory program) and
NSF (Frontiers in Earth System Dynamics).
NR 41
TC 10
Z9 12
U1 1
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 AUG 20
PY 2013
VL 773
IS 2
AR 110
DI 10.1088/0004-637X/773/2/110
PG 11
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 205EU
UT WOS:000323426100029
ER
PT J
AU Brunner, CA
Yeager, KM
Hatch, R
Simpson, S
Keim, J
Briggs, KB
Louchouarn, P
AF Brunner, Charlotte A.
Yeager, Kevin M.
Hatch, Rachel
Simpson, Sondra
Keim, Joseph
Briggs, Kevin B.
Louchouarn, Patrick
TI Effects of Oil from the 2010 Macondo Well Blowout on Marsh Foraminifera
of Mississippi and Louisiana, USA
SO ENVIRONMENTAL SCIENCE & TECHNOLOGY
LA English
DT Article
ID POLYCYCLIC AROMATIC-HYDROCARBONS; BENTHIC FORAMINIFERA; SALT-MARSH;
DEEP-SEA; VERTICAL-DISTRIBUTION; ORGANIC-CARBON; BIO-INDICATORS; GREAT
MARSHES; OUTFALL AREA; POLLUTION
AB Foraminifera responded to both heavy and light oiling of marshes relative to unoiled control sites by changes to both standing stock and depth of habitation (DOH) in sediment following the 2010 Macondo well blowout. Push cores were taken from the middle marsh at sites classified as unoiled, lightly oiled, and heavily oiled based on concentrations of total polycyclic aromatic hydrocarbons ([TPAH]). Cores were sliced and stained with rose Bengal to detect live specimens of foraminifera. Short-term, sediment-mixing depths were determined using the penetration depths of excess Th-234, and sedimentary organic carbon and carbonate were measured to distinguish depositional environments. Marsh foraminifera reacted to the highest oil concentration (5,000-18,000 ng/g of TPAH) by reducing standing stock and shortening the DOH compared with the control sites. At a second, less heavily oiled site, foraminifera responded with a shallower DOH, but with a boom in standing stock. Deformed, dead foraminifera occurred in all heavily oiled cores-but not elsewhere. Live foraminifera responded with a population boom at lightly oiled sites with [TPAH] near 1,100 ng/g. Changes in standing stock and DOH with [TPAH] suggest disturbance to the marsh food web, apparently due to oil pollution, and support the use of foraminifera as sentinel species.
C1 [Brunner, Charlotte A.; Simpson, Sondra; Keim, Joseph] Univ So Mississippi, Dept Marine Sci, Stennis Space Ctr, MS 39529 USA.
[Yeager, Kevin M.; Hatch, Rachel] Univ Kentucky, Dept Earth & Environm Sci, Lexington, KY 40506 USA.
[Briggs, Kevin B.] Naval Res Lab, Marine Geosci Div, Stennis Space Ctr, MS 39529 USA.
[Louchouarn, Patrick] Texas A&M Univ, Dept Marine Sci, Galveston, TX 77554 USA.
RP Brunner, CA (reprint author), Univ So Mississippi, Dept Marine Sci, Stennis Space Ctr, MS 39529 USA.
EM charlotte.brunner@usm.edu
RI Brunner, Charlotte/A-9705-2014
OI Brunner, Charlotte/0000-0002-6200-167X
FU National Science Foundation (NSF); REU grant; National Oceanic and
Atmospheric Administration's (NOAA) Northern Gulf Institute; BP
FX We thank Kevin Martin and Curtis Caruthers for handling the small boats
to keep us safe. We thank our intrepid field crew Kim Schindler,
ZhengZhen Zhou, Nathan Couey, Shiva Shivarudrappa, Joel Loeffler, Jeremy
Prouhet, Alyssa Jung, Carlo Fortner, Logan Dedeaux, Gopal Bera, Jennifer
Brizzolara, Christopher Rom, and DongJoo Joung-for braving the blazing
summer heat of our beautiful marshes. Special thanks are due Dr. Ming
Kuo Lee and his students (Auburn University), who collected samples used
here from Bay Batiste. We thank Franklin Williams for GIS expertise
drafting Figure 1. We thank the National Science Foundation (NSF) for a
RAPID grant and an associated REU grant that supported Mr. Joseph Keim.
We thank the National Oceanic and Atmospheric Administration's (NOAA)
Northern Gulf Institute, which supported some aspects of the work
through block grants funded by BP. We gratefully acknowledge the
reviewers and the editor.
NR 68
TC 6
Z9 6
U1 0
U2 30
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 AUG 20
PY 2013
VL 47
IS 16
BP 9115
EP 9123
DI 10.1021/es401943y
PG 9
WC Engineering, Environmental; Environmental Sciences
SC Engineering; Environmental Sciences & Ecology
GA 205VA
UT WOS:000323471700016
PM 23931746
ER
PT J
AU Ackermann, M
Ajello, M
Ballet, J
Barbiellini, G
Bastieri, D
Bellazzini, R
Bonamente, E
Brandt, TJ
Bregeon, J
Brigida, M
Bruel, P
Buehler, R
Buson, S
Caliandro, GA
Cameron, RA
Caraveo, PA
Casandjian, JM
Cavazzuti, E
Cecchi, C
Chekhtman, A
Chiang, J
Chiaro, G
Ciprini, S
Claus, R
Cohen-Tanugi, J
Cominsky, LR
Conrad, J
Cutini, S
Dalton, M
D'Ammando, F
de Angelis, A
Den Hartog, PR
de Palma, F
Dermer, CD
Digel, SW
Di Venere, L
Drell, PS
Dubois, R
Favuzzi, C
Fegan, SJ
Ferrara, EC
Focke, WB
Franckowiak, A
Funk, S
Fusco, P
Gargano, F
Gasparrini, D
Germani, S
Giglietto, N
Giordano, F
Giroletti, M
Glanzman, T
Godfrey, G
Grenier, IA
Guiriec, S
Hadasch, D
Hanabata, Y
Harding, AK
Hayashida, M
Hays, E
Hill, AB
Horan, D
Hughes, RE
Jogler, T
Johannesson, G
Johnson, AS
Johnson, TJ
Kawano, T
Kerr, M
Knodlseder, J
Kuss, M
Lande, J
Larsson, S
Latronico, L
Lemoine-Goumard, M
Li, J
Longo, F
Lovellette, MN
Lubrano, P
Mayer, M
Mazziotta, MN
McEnery, JE
Michelson, PF
Mizuno, T
Monzani, ME
Morselli, A
Moskalenko, IV
Murgia, S
Nemmen, R
Nuss, E
Ohsugi, T
Okumura, A
Orienti, M
Orlando, E
Ormes, JF
Paneque, D
Papitto, A
Perkins, JS
Pesce-Rollins, M
Piron, F
Pivato, G
Raino, S
Rando, R
Razzano, M
Rea, N
Reimer, A
Reimer, O
Scargle, JD
Schulz, A
Sgro, C
Siskind, EJ
Spandre, G
Spinelli, P
Takahashi, H
Thayer, JG
Thayer, JB
Tinivella, M
Torres, DF
Tosti, G
Troja, E
Uchiyama, Y
Usher, TL
Vandenbroucke, J
Vasileiou, V
Vianello, G
Vitale, V
Werner, M
Winer, BL
Wood, KS
AF Ackermann, M.
Ajello, M.
Ballet, J.
Barbiellini, G.
Bastieri, D.
Bellazzini, R.
Bonamente, E.
Brandt, T. J.
Bregeon, J.
Brigida, M.
Bruel, P.
Buehler, R.
Buson, S.
Caliandro, G. A.
Cameron, R. A.
Caraveo, P. A.
Casandjian, J. M.
Cavazzuti, E.
Cecchi, C.
Chekhtman, A.
Chiang, J.
Chiaro, G.
Ciprini, S.
Claus, R.
Cohen-Tanugi, J.
Cominsky, L. R.
Conrad, J.
Cutini, S.
Dalton, M.
D'Ammando, F.
de Angelis, A.
Den Hartog, P. R.
de Palma, F.
Dermer, C. D.
Digel, S. W.
Di Venere, L.
Drell, P. S.
Dubois, R.
Favuzzi, C.
Fegan, S. J.
Ferrara, E. C.
Focke, W. B.
Franckowiak, A.
Funk, S.
Fusco, P.
Gargano, F.
Gasparrini, D.
Germani, S.
Giglietto, N.
Giordano, F.
Giroletti, M.
Glanzman, T.
Godfrey, G.
Grenier, I. A.
Guiriec, S.
Hadasch, D.
Hanabata, Y.
Harding, A. K.
Hayashida, M.
Hays, E.
Hill, A. B.
Horan, D.
Hughes, R. E.
Jogler, T.
Johannesson, G.
Johnson, A. S.
Johnson, T. J.
Kawano, T.
Kerr, M.
Knoedlseder, J.
Kuss, M.
Lande, J.
Larsson, S.
Latronico, L.
Lemoine-Goumard, M.
Li, J.
Longo, F.
Lovellette, M. N.
Lubrano, P.
Mayer, M.
Mazziotta, M. N.
McEnery, J. E.
Michelson, P. F.
Mizuno, T.
Monzani, M. E.
Morselli, A.
Moskalenko, I. V.
Murgia, S.
Nemmen, R.
Nuss, E.
Ohsugi, T.
Okumura, A.
Orienti, M.
Orlando, E.
Ormes, J. F.
Paneque, D.
Papitto, A.
Perkins, J. S.
Pesce-Rollins, M.
Piron, F.
Pivato, G.
Raino, S.
Rando, R.
Razzano, M.
Rea, N.
Reimer, A.
Reimer, O.
Scargle, J. D.
Schulz, A.
Sgro, C.
Siskind, E. J.
Spandre, G.
Spinelli, P.
Takahashi, H.
Thayer, J. G.
Thayer, J. B.
Tinivella, M.
Torres, D. F.
Tosti, G.
Troja, E.
Uchiyama, Y.
Usher, T. L.
Vandenbroucke, J.
Vasileiou, V.
Vianello, G.
Vitale, V.
Werner, M.
Winer, B. L.
Wood, K. S.
TI ASSOCIATING LONG-TERM gamma-RAY VARIABILITY WITH THE SUPERORBITAL PERIOD
OF LS I+61 degrees 303
SO ASTROPHYSICAL JOURNAL LETTERS
LA English
DT Article
DE gamma rays: general; gamma rays: stars; stars: emission-line, Be
ID X-RAY; ORBITAL MODULATION; I +61-DEGREES-303; SPACED DATA; BINARY;
EMISSION; RADIO; STAR; OUTBURSTS; DISK
AB Gamma-ray binaries are stellar systems for which the spectral energy distribution (discounting the thermal stellar emission) peaks at high energies. Detected from radio to TeV gamma rays, the gamma-ray binary LS I + 61 degrees 303 is highly variable across all frequencies. One aspect of this system's variability is the modulation of its emission with the timescale set by the similar to 26.4960 day orbital period. Here we show that, during the time of our observations, the gamma-ray emission of LS I + 61 degrees 303 also presents a sinusoidal variability consistent with the previously known superorbital period of 1667 days. This modulation is more prominently seen at orbital phases around apastron, whereas it does not introduce a visible change close to periastron. It is also found in the appearance and disappearance of variability at the orbital period in the power spectrum of the data. This behavior could be explained by a quasi-cyclical evolution of the equatorial outflow of the Be companion star, whose features influence the conditions for generating gamma rays. These findings open the possibility to use gamma-ray observations to study the outflows of massive stars in eccentric binary systems.
C1 [Ackermann, M.; Buehler, R.; Mayer, M.; Schulz, A.] Deutsch Elektronen Synchrotron DESY, D-15738 Zeuthen, Germany.
[Ajello, M.] Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA.
[Ballet, J.; Casandjian, J. M.; Grenier, I. A.] Univ Paris Diderot, Serv Astrophys, CEA Saclay, Lab AIM,CEA IRFU,CNRS, F-91191 Gif Sur Yvette, France.
[Barbiellini, G.; Latronico, L.; Longo, F.] Ist Nazl Fis Nucl, Sez Trieste, I-34127 Trieste, Italy.
[Barbiellini, G.; Longo, F.] Univ Trieste, Dipartimento Fis, I-34127 Trieste, Italy.
[Bastieri, D.; Buson, S.; Rando, R.] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy.
[Bastieri, D.; Buson, S.; Chiaro, G.; Pivato, G.; Rando, R.] Univ Padua, Dipartimento Fis & Astron G Galilei, I-35131 Padua, Italy.
[Bellazzini, R.; Bregeon, J.; Kuss, M.; Pesce-Rollins, M.; Razzano, M.; Sgro, C.; Spandre, G.; Tinivella, M.] Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy.
[Bonamente, E.; Cecchi, C.; Germani, S.; Lubrano, P.; Tosti, G.] Ist Nazl Fis Nucl, Sez Perugia, I-06123 Perugia, Italy.
[Bonamente, E.; Cecchi, C.; Germani, S.; Lubrano, P.; Tosti, G.] Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy.
[Brandt, T. J.; Ferrara, E. C.; Guiriec, S.; Harding, A. K.; Hays, E.; McEnery, J. E.; Nemmen, R.; Perkins, J. S.; Troja, E.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Giglietto, N.; Giordano, F.; Raino, S.; Spinelli, P.] Univ Bari, Dipartimento Fis M Merlin, I-70126 Bari, Italy.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Giglietto, N.; Giordano, F.; Raino, S.; Spinelli, P.] Politecn Bari, I-70126 Bari, Italy.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Gargano, F.; Giglietto, N.; Giordano, F.; Mazziotta, M. N.; Raino, S.; Spinelli, P.] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy.
[Bruel, P.; Fegan, S. J.; Horan, D.] Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France.
[Caliandro, G. A.; Hadasch, D.; Li, J.; Papitto, A.; Rea, N.; Torres, D. F.] Inst Space Sci IEEE CSIC, E-08193 Barcelona, Spain.
[Cameron, R. A.; Chiang, J.; Claus, R.; Den Hartog, P. R.; Digel, S. W.; Di Venere, L.; Drell, P. S.; Dubois, R.; Focke, W. B.; Franckowiak, A.; Funk, S.; Glanzman, T.; Godfrey, G.; Hayashida, M.; Hill, A. B.; Jogler, T.; Johnson, A. S.; Kerr, M.; Lande, J.; Michelson, P. F.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Okumura, A.; Orlando, E.; Paneque, D.; Reimer, A.; Reimer, O.; Thayer, J. G.; Thayer, J. B.; Usher, T. L.; Vandenbroucke, J.; Vianello, G.] Stanford Univ, Kavli Inst Particle Astrophys & Cosmol, WW Hansen Expt Phys Lab, Dept Phys, Stanford, CA 94305 USA.
[Cameron, R. A.; Chiang, J.; Claus, R.; Den Hartog, P. R.; Digel, S. W.; Di Venere, L.; Drell, P. S.; Dubois, R.; Focke, W. B.; Franckowiak, A.; Funk, S.; Glanzman, T.; Godfrey, G.; Hayashida, M.; Hill, A. B.; Jogler, T.; Johnson, A. S.; Kerr, M.; Lande, J.; Michelson, P. F.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Okumura, A.; Orlando, E.; Paneque, D.; Reimer, A.; Reimer, O.; Thayer, J. G.; Thayer, J. B.; Usher, T. L.; Vandenbroucke, J.; Vianello, G.] Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA.
[Caraveo, P. A.] INAF Ist Astrofis Spaziale & Fis Cosm, I-20133 Milan, Italy.
[Cavazzuti, E.; Ciprini, S.; Cutini, S.; Gasparrini, D.] ASI, Sci Data Ctr, I-00044 Frascati, Roma, Italy.
[Chekhtman, A.] George Mason Univ, Coll Sci, Ctr Earth Observing & Space Res, Fairfax, VA 22030 USA.
[Ciprini, S.; Cutini, S.; Gasparrini, D.] Osserv Astron Roma, Ist Nazl Astrofis, I-00040 Monte Porzio Catone, Roma, Italy.
[Cohen-Tanugi, J.; Nuss, E.; Piron, F.; Vasileiou, V.] Univ Montpellier 2, Lab Universe & Particules Montpellier, CNRS, IN2P3, F-34095 Montpellier, France.
[Cominsky, L. R.] Sonoma State Univ, Dept Phys & Astron, Rohnert Pk, CA 94928 USA.
[Conrad, J.; Larsson, S.] Stockholm Univ, Dept Phys, AlbaNova, SE-10691 Stockholm, Sweden.
[Conrad, J.; Larsson, S.] Oskar Klein Ctr Cosmoparticle Phys, AlbaNova, SE-10691 Stockholm, Sweden.
[Conrad, J.] Royal Swedish Acad Sci, SE-10405 Stockholm, Sweden.
[Dalton, M.; Lemoine-Goumard, M.] Univ Bordeaux 1, CNRS, IN2P3, Ctr Etud Nucl Bordeaux Gradignan, F-33175 Gradignan, France.
[D'Ammando, F.; Giroletti, M.; Orienti, M.] INAF Ist Radioastron, I-40129 Bologna, Italy.
[Conrad, J.; de Angelis, A.] Univ Udine, Dipartimento Fis, I-33100 Udine, Italy.
[Conrad, J.; de Angelis, A.] Ist Nazl Fis Nucl, Sez Trieste, Grp Collegato Udine, I-33100 Udine, Italy.
[Dermer, C. D.; Lovellette, M. N.; Wood, K. S.] Naval Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Hanabata, Y.; Kawano, T.; Takahashi, H.] Hiroshima Univ, Dept Phys Sci, Hiroshima 7398526, Japan.
[Hayashida, M.] Kyoto Univ, Grad Sch Sci, Dept Astron, Sakyo Ku, Kyoto 6068502, Japan.
[Hill, A. B.] Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England.
[Hughes, R. E.; Winer, B. L.] Ohio State Univ, Dept Phys, Ctr Cosmol & Astroparticle Phys, Columbus, OH 43210 USA.
[Johannesson, G.] Univ Iceland, Inst Sci, IS-107 Reykjavik, Iceland.
[Johannesson, G.] Natl Acad Sci, Washington, DC 20001 USA.
[Johnson, T. J.] IRAP, CNRS, F-31028 Toulouse 4, France.
[Knoedlseder, J.] Univ Toulouse, GAHEC, UPS OMP, F-31028 Toulouse, France.
[Knoedlseder, J.] Stockholm Univ, Dept Astron, SE-10691 Stockholm, Sweden.
[Larsson, S.] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy.
[Lemoine-Goumard, M.; Li, J.] Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China.
[McEnery, J. E.] Univ Maryland, Dept Phys, College Pk, MD 20742 USA.
[McEnery, J. E.] Univ Maryland, Dept Astron, College Pk, MD 20742 USA.
[Mizuno, T.; Ohsugi, T.] Hiroshima Univ, Hiroshima Astrophys Sci Ctr, Hiroshima 7398526, Japan.
[Morselli, A.; Vitale, V.] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, I-00133 Rome, Italy.
[Okumura, A.] Nagoya Univ, Solar Terr Environm Lab, Nagoya, Aichi 4648601, Japan.
[Ormes, J. F.] Univ Denver, Dept Phys & Astron, Denver, CO 80208 USA.
[Paneque, D.] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany.
[Perkins, J. S.] Univ Maryland Baltimore Cty, Dept Phys, Baltimore, MD 21250 USA.
[Perkins, J. S.] Univ Maryland Baltimore Cty, Ctr Space Sci & Technol, Baltimore, MD 21250 USA.
[Perkins, J. S.] CRESST, Greenbelt, MD 20771 USA.
[Perkins, J. S.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Razzano, M.] Univ Calif Santa Cruz, Santa Cruz Inst Particle Phys, Dept Phys, Santa Cruz, CA 95064 USA.
[Razzano, M.] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA.
[Reimer, A.; Reimer, O.; Werner, M.] Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria.
[Reimer, A.; Reimer, O.; Werner, M.] Leopold Franzens Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria.
[Scargle, J. D.] NASA, Ames Res Ctr, Div Space Sci, Moffett Field, CA 94035 USA.
[Siskind, E. J.] NYCB Real Time Comp Inc, Lattingtown, NY 11560 USA.
[Torres, D. F.] ICREA, E-08010 Barcelona, Spain.
[Vianello, G.] CIFS, I-10133 Turin, Italy.
[Vitale, V.] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy.
[Chekhtman, A.; Johannesson, G.] Naval Res Lab, Washington, DC 20375 USA.
RP Ackermann, M (reprint author), Deutsch Elektronen Synchrotron DESY, D-15738 Zeuthen, Germany.
EM andrea.caliandro@ieec.uab.es; hadasch@ieec.uab.es; dtorres@ieec.uab.es
RI Torres, Diego/O-9422-2016; Orlando, E/R-5594-2016; Di Venere,
Leonardo/C-7619-2017; Rea, Nanda/I-2853-2015; Johannesson,
Gudlaugur/O-8741-2015; Mazziotta, Mario /O-8867-2015; Gargano,
Fabio/O-8934-2015; giglietto, nicola/I-8951-2012; Rando,
Riccardo/M-7179-2013; Hays, Elizabeth/D-3257-2012; Reimer,
Olaf/A-3117-2013; Morselli, Aldo/G-6769-2011; Nemmen,
Rodrigo/O-6841-2014; Funk, Stefan/B-7629-2015; Moskalenko,
Igor/A-1301-2007; Sgro, Carmelo/K-3395-2016
OI Torres, Diego/0000-0002-1522-9065; Di Venere,
Leonardo/0000-0003-0703-824X; Giordano, Francesco/0000-0002-8651-2394;
De Angelis, Alessandro/0000-0002-3288-2517; Caraveo,
Patrizia/0000-0003-2478-8018; Sgro', Carmelo/0000-0001-5676-6214; Rando,
Riccardo/0000-0001-6992-818X; Rea, Nanda/0000-0003-2177-6388;
Johannesson, Gudlaugur/0000-0003-1458-7036; Mazziotta, Mario
/0000-0001-9325-4672; Gargano, Fabio/0000-0002-5055-6395; giglietto,
nicola/0000-0002-9021-2888; Reimer, Olaf/0000-0001-6953-1385; Morselli,
Aldo/0000-0002-7704-9553; Funk, Stefan/0000-0002-2012-0080; Moskalenko,
Igor/0000-0001-6141-458X;
FU NASA (United States); U.S. Department of Energy (United States);
CEA/Irfu (France); IN2P3/CNRS (France); ASI (Italy); INFN (Italy); MEXT
(Japan); KEK (Japan); JAXA (Japan); K.A. Wallenberg Foundation (Sweden);
Swedish Research Council (Sweden); National Space Board (Sweden); INAF
in Italy; CNES in France; Alexander von Humboldt Foundation.;
[AYA2012-39303]; [SGR2009-811]; [iLINK2011-0303]
FX The Fermi-LAT Collaboration acknowledges support from a number of
agencies and institutes for both development and the operation of the
LAT as well as scientific data analysis. These include NASA and the U.S.
Department of Energy (United States); CEA/Irfu and IN2P3/CNRS (France);
ASI and INFN (Italy); MEXT, KEK, and JAXA (Japan); and the K.A.
Wallenberg Foundation, the Swedish Research Council and the National
Space Board (Sweden). Additional support from INAF in Italy and CNES in
France for science analysis during the operations phase is also
gratefully acknowledged.; Additional support of this work comes from
grants AYA2012-39303, SGR2009-811, and iLINK2011-0303. D. F. T. was
additionally supported by a Friedrich Wilhelm Bessel Award of the
Alexander von Humboldt Foundation.
NR 30
TC 16
Z9 17
U1 0
U2 13
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 2041-8205
J9 ASTROPHYS J LETT
JI Astrophys. J. Lett.
PD AUG 20
PY 2013
VL 773
IS 2
AR L35
DI 10.1088/2041-8205/773/2/L35
PG 7
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 198CO
UT WOS:000322899600018
ER
PT J
AU Schueler, CF
Lee, TF
Miller, SD
AF Schueler, Carl F.
Lee, Thomas F.
Miller, Steven D.
TI VIIRS constant spatial-resolution advantages
SO INTERNATIONAL JOURNAL OF REMOTE SENSING
LA English
DT Article
ID CALIBRATION; SENSOR; SYSTEM; MODIS
AB The Suomi National Polar-orbiting Partnership (NPP) Visible Infrared Imager Radiometer Suite (VIIRS) was launched on 28 October 2011, nearly 20 years after the conceptual definition began at the Hughes Aircraft Company's Santa Barbara Research Center. Constrained off-nadir pixel growth, producing constant or near-constant VIIRS spatial resolution over the entire scan swath, is a patented design feature that dramatically improves imaging radiometry compared to VIIRS predecessors. VIIRS ground-projected east-west (across the orbit track) and north-south (along the orbit track) pixel dimensions are constrained to within a factor of two from nadir to +/- 1500 km off-nadir (edge of scan) in all 22 VIIRS spectral bands. The capability is a valuable improvement to previous systems' six-fold across-track pixel growth over narrower swaths, while improving signal-to-noise ratio (SNR) without larger optics. The technique allows the VIIRS day/night band (DNB) to offer nearly 9- to over 50-fold finer and truly constant area spatial resolution with enhanced sensitivity and dynamic range compared with the Defense Meteorological Satellite Program (DMSP) Operational Linescan System (OLS). This article reviews constant resolution from concept to VIIRS implementation and compares several VIIRS applications to similar applications of systems VIIRS replaces to demonstrate advantages of the new capability.
C1 [Schueler, Carl F.] Schueler Consulting, Santa Barbara, CA 93111 USA.
[Lee, Thomas F.] USN, Res Lab, Monterey, CA USA.
[Miller, Steven D.] Colorado State Univ, Ft Collins, CO 80523 USA.
RP Schueler, CF (reprint author), Schueler Consulting, Santa Barbara, CA 93111 USA.
EM carl@scsb.info
FU United States Naval Research Laboratory [N00173-10-C-2003];
Oceanographer of the Navy through the Program Executive Office
[C4l/PMW-120, PE-0603207N]; NOAA JPSS Cal/Val & Algorithm Program
FX The authors acknowledge the government and contractor teams that
developed, launched, and now operate VIIRS. The on-orbit data analysis
described was partially funded under United States Naval Research
Laboratory contract N00173-10-C-2003, the Oceanographer of the Navy
through the Program Executive Office C4l/PMW-120 under programme element
PE-0603207N, and the NOAA JPSS Cal/Val & Algorithm Program. The
corresponding author would also like to acknowledge Mr Richard Chandos,
then with Hughes Santa Barbara Research Center, for assistance with the
constant-resolution patent electronics design in 1994.
NR 32
TC 12
Z9 17
U1 3
U2 31
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 AUG 20
PY 2013
VL 34
IS 16
BP 5761
EP 5777
DI 10.1080/01431161.2013.796102
PG 17
WC Remote Sensing; Imaging Science & Photographic Technology
SC Remote Sensing; Imaging Science & Photographic Technology
GA 161IZ
UT WOS:000320187700008
ER
PT J
AU Fears, KP
Petrovykh, DY
Clark, TD
AF Fears, Kenan P.
Petrovykh, Dmitri Y.
Clark, Thomas D.
TI Evaluating protocols and analytical methods for peptide adsorption
experiments
SO BIOINTERPHASES
LA English
DT Article
ID RAY PHOTOELECTRON-SPECTROSCOPY; SELF-ASSEMBLED MONOLAYERS; SUM-FREQUENCY
GENERATION; ATOMIC-FORCE MICROSCOPY; ADSORBED PROTEIN FILMS; ION
MASS-SPECTROMETRY; SURFACE INTERACTIONS; CIRCULAR-DICHROISM;
FREE-ENERGY; POLYPROLINE-II
AB This paper evaluates analytical techniques that are relevant for performing reliable quantitative analysis of peptide adsorption on surfaces. Two salient problems are addressed: determining the solution concentrations of model GG-X-GG, X-5, and X-10 oligopeptides (G = glycine, X = a natural amino acid), and quantitative analysis of these peptides following adsorption on surfaces. To establish a uniform methodology for measuring peptide concentrations in water across the entire GG-X-GG and X-n series, three methods were assessed: UV spectroscopy of peptides having a C-terminal tyrosine, the bicinchoninic acid (BCA) protein assay, and amino acid (AA) analysis. Due to shortcomings or caveats associated with each of the different methods, none were effective at measuring concentrations across the entire range of representative model peptides. In general, reliable measurements were within 30% of the nominal concentration based on the weight of as-received lyophilized peptide. In quantitative analysis of model peptides adsorbed on surfaces, X-ray photoelectron spectroscopy (XPS) data for a series of lysine-based peptides (GGKGG, K-5, and K-10) on Au substrates, and for controls incubated in buffer in the absence of peptides, suggested a significant presence of aliphatic carbon species. Detailed analysis indicated that this carbonaceous contamination adsorbed from the atmosphere after the peptide deposition. The inferred adventitious nature of the observed aliphatic carbon was supported by control experiments in which substrates were sputter-cleaned by Ar+ ions under ultra-high vacuum (UHV) then re-exposed to ambient air. In contrast to carbon contamination, no adventitious nitrogen species were detected on the controls; therefore, the relative surface densities of irreversibly-adsorbed peptides were calculated by normalizing the N/Au ratios by the average number of nitrogen atoms per residue.
C1 [Fears, Kenan P.; Petrovykh, Dmitri Y.; Clark, Thomas D.] Naval Res Lab, Div Chem, Washington, DC 20375 USA.
[Petrovykh, Dmitri Y.] Univ Maryland, Dept Phys, College Pk, MD 20742 USA.
RP Petrovykh, DY (reprint author), Naval Res Lab, Div Chem, Washington, DC 20375 USA.
EM dmitri.petrovykh@inl.int; thomas.clark@nrl.navy.mil
RI Petrovykh, Dmitri/A-3432-2008
OI Petrovykh, Dmitri/0000-0001-9089-4076
FU Office of Naval Research (ONR); Air Force Office of Scientific Research
(AFOSR); National Research Council for a Postdoctoral Fellowship at NRL
FX Support for this work was provided by the Office of Naval Research (ONR)
and the Air Force Office of Scientific Research (AFOSR). KPF thanks the
National Research Council for a Postdoctoral Fellowship at NRL during
the initial stages of this project. The authors also thank Dr. George P.
Anderson (NRL) for the use of Jasco J-815 spectrometer. DYP thanks Dr.
Robert Willett (Bell Labs) for useful discussions and for peptide
samples provided for initial comparative analysis.
NR 62
TC 2
Z9 3
U1 3
U2 36
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 1934-8630
EI 1559-4106
J9 BIOINTERPHASES
JI Biointerphases
PD AUG 19
PY 2013
VL 8
AR 20
DI 10.1186/1559-4106-8-20
PG 15
WC Biophysics; Materials Science, Biomaterials
SC Biophysics; Materials Science
GA 227BM
UT WOS:000325082700001
PM 24706133
ER
PT J
AU Nepal, N
Qadri, SB
Hite, JK
Mahadik, NA
Mastro, MA
Eddy, CR
AF Nepal, N.
Qadri, S. B.
Hite, J. K.
Mahadik, N. A.
Mastro, M. A.
Eddy, C. R., Jr.
TI Epitaxial growth of AlN films via plasma-assisted atomic layer epitaxy
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID CHEMICAL-VAPOR-DEPOSITION; MOLECULAR-BEAM EPITAXY; GROUP-III NITRIDES;
THIN-FILMS; OPTICAL-PROPERTIES; GAN; EPILAYERS; AIN; INN
AB Thin AlN layers were grown at 200-650 degrees C by plasma assisted atomic layer epitaxy (PA-ALE) simultaneously on Si(111), sapphire (11 (2) over bar0), and GaN/sapphire substrates. The AlN growth on Si(111) is self-limited for trimethyaluminum (TMA) pulse of length > 0.04 s, using a 10 s purge. However, the AlN nucleation on GaN/sapphire is non-uniform and has a bimodal island size distribution for TMA pulse of <= 0.03 s. The growth rate (GR) remains almost constant for T-g between 300 and 400 degrees C indicating ALE mode at those temperatures. The GR is increased by 20% at T-g = 500 degrees C. Spectroscopic ellipsometry (SE) measurement shows that the ALE AlN layers grown at T-g <= 400 degrees C have no clear band edge related features, however, the theoretically estimated band gap of 6.2 eV was measured for AlN grown at T-g >= 500 degrees C. X-ray diffraction measurements on 37 nm thick AlN films grown at optimized growth conditions (T-g = 500 degrees C, 10 s purge, 0.06 s TMA pulse) reveal that the ALE AlN on GaN/sapphire is (0002) oriented with rocking curve full width at the half maximum (FWHM) of 670 arc sec. Epitaxial growth of crystalline AlN layers by PA-ALE at low temperatures broadens application of the material in the technologies that require large area conformal growth at low temperatures with thickness control at the atomic scale.
C1 [Nepal, N.; Qadri, S. B.; Hite, J. K.; Mahadik, N. A.; Mastro, M. A.; Eddy, C. R., Jr.] US Naval Res Lab, Washington, DC 20375 USA.
RP Nepal, N (reprint author), US Naval Res Lab, Washington, DC 20375 USA.
RI Hite, Jennifer/L-5637-2015
OI Hite, Jennifer/0000-0002-4090-0826
FU American Society for Engineering Education-Naval Research Laboratory;
Office of Naval Research
FX N. Nepal would like to acknowledge the support of The American Society
for Engineering Education-Naval Research Laboratory postdoctoral
fellowship programs. Work at the U.S. Naval Research Laboratory is
supported by the Office of Naval Research.
NR 24
TC 15
Z9 15
U1 7
U2 83
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 AUG 19
PY 2013
VL 103
IS 8
AR 082110
DI 10.1063/1.4818792
PG 5
WC Physics, Applied
SC Physics
GA 209VH
UT WOS:000323788100032
ER
PT J
AU Krueger, WS
Khuntirat, B
Yoon, IK
Blair, PJ
Chittagarnpitch, M
Putnam, SD
Supawat, K
Gibbons, RV
Bhuddari, D
Pattamadilok, S
Sawanpanyalert, P
Heil, GL
Gray, GC
AF Krueger, Whitney S.
Khuntirat, Benjawan
Yoon, In-Kyu
Blair, Patrick J.
Chittagarnpitch, Malinee
Putnam, Shannon D.
Supawat, Krongkaew
Gibbons, Robert V.
Bhuddari, Darunee
Pattamadilok, Sirima
Sawanpanyalert, Pathom
Heil, Gary L.
Gray, Gregory C.
TI Prospective Study of Avian Influenza Virus Infections among Rural Thai
Villagers
SO PLOS ONE
LA English
DT Article
ID A H5N1 VIRUS; SWINE WORKERS; UNITED-STATES; SURVEILLANCE; PNEUMONIA;
OUTBREAKS; POULTRY; ASSAYS; RISK; PCR
AB Background: In 2008, 800 rural Thai adults living within Kamphaeng Phet Province were enrolled in a prospective cohort study of zoonotic influenza transmission. Serological analyses of enrollment sera suggested this cohort had experienced subclinical avian influenza virus (AIV) infections with H9N2 and H5N1 viruses.
Methods: After enrollment, participants were contacted weekly for 24mos for acute influenza-like illnesses (ILI). Cohort members confirmed to have influenza A infections were enrolled with their household contacts in a family transmission study involving paired sera and respiratory swab collections. Cohort members also provided sera at 12 and 24 months after enrollment. Serologic and real-time RT-PCR assays were performed against avian, swine, and human influenza viruses.
Results: Over the 2 yrs of follow-up, 81 ILI investigations in the cohort were conducted; 31 (38%) were identified as influenza A infections by qRT-PCR. Eighty-three household contacts were enrolled; 12 (14%) reported ILIs, and 11 (92%) of those were identified as influenza infections. A number of subjects were found to have slightly elevated antibodies against avian-like A/Hong Kong/1073/1999(H9N2) virus: 21 subjects (2.7%) at 12-months and 40 subjects (5.1%) at 24-months. Among these, two largely asymptomatic acute infections with H9N2 virus were detected by >4-fold increases in annual serologic titers (final titers 1: 80). While controlling for age and influenza vaccine receipt, moderate poultry exposure was significantly associated with elevated H9N2 titers (adjusted OR = 2.3; 95% CI, 1.04-5.2) at the 24-month encounter. One subject had an elevated titer (1: 20) against H5N1 during follow-up.
Conclusions: From 2008-10, evidence for AIV infections was sparse among this rural population. Subclinical H9N2 AIV infections likely occurred, but serological results were confounded by antibody cross-reactions. There is a critical need for improved serological diagnostics to more accurately detect subclinical AIV infections in humans.
C1 [Krueger, Whitney S.; Heil, Gary L.; Gray, Gregory C.] Univ Florida, Coll Publ Hlth & Hlth Profess, Gainesville, FL 32610 USA.
[Krueger, Whitney S.; Heil, Gary L.; Gray, Gregory C.] Univ Florida, Emerging Pathogens Inst, Gainesville, FL USA.
[Khuntirat, Benjawan; Yoon, In-Kyu; Gibbons, Robert V.; Bhuddari, Darunee] Armed Forces Res Inst Med Sci, US Army Med Component, Bangkok 10400, Thailand.
[Blair, Patrick J.] Naval Med Res Unit 2, Singapore, Singapore.
[Blair, Patrick J.] Off Def Cooperat, Singapore, Singapore.
[Chittagarnpitch, Malinee; Supawat, Krongkaew; Pattamadilok, Sirima; Sawanpanyalert, Pathom] Minist Publ Hlth, Natl Inst Hlth, Bangkok, Thailand.
[Putnam, Shannon D.] USN, Hlth Res Ctr, San Diego, CA 92152 USA.
RP Gray, GC (reprint author), Univ Florida, Coll Publ Hlth & Hlth Profess, Gainesville, FL 32610 USA.
EM gcgray@phhp.ufl.edu
FU US Armed Forces Health Surveillance Center - Global Emerging Infections
Surveillance Operations; National Institute of Allergy and Infectious
Diseases [R01 AI068803]
FX This work was supported by the US Armed Forces Health Surveillance
Center - Global Emerging Infections Surveillance Operations (multiple
grants to GCG, PJB, SDP, and IU) and National Institute of Allergy and
Infectious Diseases (R01 AI068803 to GCG). The funders had no role in
study design, data collection and analysis, decision to publish, or
preparation of the manuscript.
NR 35
TC 9
Z9 9
U1 0
U2 9
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 AUG 16
PY 2013
VL 8
IS 8
AR e72196
DI 10.1371/journal.pone.0072196
PG 7
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 207BA
UT WOS:000323570200063
PM 23977250
ER
PT J
AU Choi, MY
Estep, A
Sanscrainte, N
Becnel, J
Meer, RKV
AF Choi, Man-Yeon
Estep, Alden
Sanscrainte, Neil
Becnel, James
Meer, Robert K. Vander
TI Identification and expression of PBAN/diapause hormone and GPCRs from
Aedes aegypti
SO MOLECULAR AND CELLULAR ENDOCRINOLOGY
LA English
DT Article
DE PBAN; Diapause hormone; Neuropeptide; Receptor; GPCR; Aedes aegypti
ID BIOSYNTHESIS-ACTIVATING NEUROPEPTIDE; PROTEIN-COUPLED RECEPTOR;
HELICOVERPA-ZEA LEPIDOPTERA; SARCOPHAGA-BULLATA LARVAE;
CENTRAL-NERVOUS-SYSTEM; PHEROMONE BIOSYNTHESIS; SOLENOPSIS-INVICTA;
DIAPAUSE HORMONE; MOLECULAR CHARACTERIZATION; CLEAVAGE SITES
AB Neuropeptides control various physiological functions and constitute more than 90% of insect hormones. The pheromone biosynthesis activating neuropeptide (PBAN)/pyrokinin family is a major group of insect neuropeptides and is well conserved in Insecta. This family of peptides has at least two closely related G-protein-coupled receptors (GPCRs) activated by PBAN and a diapause hormone (DH). They have been shown to control several biological activities including pheromone production and diapause induction in moths. However, beyond some moth species, the biological function(s) of PBAN/pyrokinin peptides are largely unknown although these peptides are found in all insects. In this study we identified and characterized PBAN/pyrokinin peptides and corresponding GPCRs from the mosquito, Aedes aegypti. Ae. aegypti PBAN mRNA encodes four putative peptides including PBAN and DH, and is expressed in females and males during all life stages. The PBAN receptor (PBAN-R) and the DH receptor (DH-R) were functionally expressed and confirmed through binding assays with PBAN and DH peptides. These receptors are differentially expressed from eggs to adults with the relative gene expression of the PBAN-R significantly lower during the 4th instar larval (L4) and pupal (P1-P2) stages compared to the 2nd and 3rd instar larval stages (L2 and L3). However, DH-R expression level is consistently 4-10 times higher than the PBAN-R in the same period, suggesting that PBAN-R is downregulated in the late larval and pupal stages, whereas DH-R stays upregulated throughout all developmental stages. PBAN/pyrokinin mRNA expression remains high in all stages since it produces PBAN and DH peptides. This study provides the foundation for determining the function(s) of the PBAN/pyrokinin peptides in mosquitoes and establishes data critical to the development of methods for disruption of these hormone actions as a novel strategy for mosquito control. Published by Elsevier Ireland Ltd.
C1 [Choi, Man-Yeon; Estep, Alden; Sanscrainte, Neil; Becnel, James; Meer, Robert K. Vander] USDA ARS, CMAVE, Gainesville, FL 32608 USA.
[Estep, Alden] Navy Entomol Ctr Excellence, Naval Air Stn, Jacksonville, FL 32212 USA.
RP Choi, MY (reprint author), USDA ARS, CMAVE, 1600 SW 23rd Dr, Gainesville, FL 32608 USA.
EM mychoi@ars.usda.gov
OI Choi, Man-Yeon/0000-0003-0769-380X
NR 46
TC 11
Z9 11
U1 2
U2 42
PU ELSEVIER IRELAND LTD
PI CLARE
PA ELSEVIER HOUSE, BROOKVALE PLAZA, EAST PARK SHANNON, CO, CLARE, 00000,
IRELAND
SN 0303-7207
J9 MOL CELL ENDOCRINOL
JI Mol. Cell. Endocrinol.
PD AUG 15
PY 2013
VL 375
IS 1-2
BP 113
EP 120
DI 10.1016/j.mce.2013.05.019
PG 8
WC Cell Biology; Endocrinology & Metabolism
SC Cell Biology; Endocrinology & Metabolism
GA 186OS
UT WOS:000322054600014
PM 23727337
ER
PT J
AU Jordan, PM
AF Jordan, P. M.
TI A note on poroacoustic traveling waves under Forchheimer's law
SO PHYSICS LETTERS A
LA English
DT Article
DE Nonlinear poroacoustics; Forchheimer's law; Traveling wave solutions;
Acceleration waves
ID ACCELERATION-WAVES; DARCYS-LAW; FLOW
AB Acoustic traveling waves in a gas that saturates a rigid porous medium is investigated under the assumption that the drag experienced by the gas is modeled by Forchheimer's law. Exact traveling wave solutions (TWS)s, as well as approximate and asymptotic expressions, are obtained; decay rates are determined; and acceleration wave results are presented. In addition, special cases are considered, critical values of the wave variable and parameters are derived, and comparisons with predictions based on Darcy's law are performed. It is shown that, with respect to the Darcy case, most of the metrics that characterize such waveforms exhibit an increase in magnitude under Forchheimer's law. Published by Elsevier B.V.
C1 USN, Res Lab, Acoust Div, Stennis Space Ctr, MS 39529 USA.
RP Jordan, PM (reprint author), USN, Res Lab, Acoust Div, Stennis Space Ctr, MS 39529 USA.
EM pjordan@nrlssc.navy.mil
FU ONR
FX The author thanks Prof. Brian Straughan for his valuable comments. All
figures appearing in this Letter were generated using the software
package MATHEMATICA (ver. 8). This work was supported by ONR funding.
NR 26
TC 3
Z9 3
U1 1
U2 8
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0375-9601
J9 PHYS LETT A
JI Phys. Lett. A
PD AUG 15
PY 2013
VL 377
IS 19-20
BP 1350
EP 1357
DI 10.1016/j.physleta.2013.03.041
PG 8
WC Physics, Multidisciplinary
SC Physics
GA 139LD
UT WOS:000318583300006
ER
PT J
AU Mathews, SA
Auyeung, RCY
Kim, H
Charipar, NA
Pique, A
AF Mathews, S. A.
Auyeung, R. C. Y.
Kim, H.
Charipar, N. A.
Pique, A.
TI High-speed video study of laser-induced forward transfer of silver
nano-suspensions
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID DIRECT-WRITE; LIQUIDS; FABRICATION; FILMS; INK
AB High-speed video (100 000 fps) is used to examine the behavior of silver nanoparticle suspensions ejected from a donor substrate during laser-induced forward transfer (LIFT) as a function of viscosity, donor film thickness, and voxel area. Both high-speed video and inspection of the post-transferred material indicate dramatic changes in the behavior of the fluid as the viscosity of the nano-suspensions increases from that of inks (similar to 0.01 Pa.s) to pastes (>100 Pa.s). Over a specific range of viscosities (90-150 Pa.s) and laser fluences (35-65 mJ/cm(2)), the ejected voxels precisely reproduce the size and shape of the laser spot. This LIFT regime is known as laser decal transfer or LDT. Analysis of the high-speed video indicates that the speeds of the voxels released by the LDT process do not exceed 1 m/s. Such transfer speeds are at least an order of magnitude lower than those associated with other LIFT processes, thus minimizing voxel deformation during flight and upon impact with the receiving substrate. Variation in the threshold fluence for initiating the LDT process is measured as a function of donor film thickness and transfer spot size. Overall, the congruent nature of the silver nanopaste voxels deposited by LDT is unique among non-contact digital printing techniques given its control of the voxel's size and shape, thus allowing partial parallelization of the direct-write process. (C) 2013 AIP Publishing LLC.
C1 [Mathews, S. A.; Auyeung, R. C. Y.; Kim, H.; Charipar, N. A.; Pique, A.] Naval Res Lab, Div Mat Sci & Technol, Washington, DC 20375 USA.
[Mathews, S. A.] Catholic Univ Amer, Dept Elect Engn & Comp Sci, Washington, DC 20064 USA.
RP Pique, A (reprint author), Naval Res Lab, Div Mat Sci & Technol, Code 6364, Washington, DC 20375 USA.
EM pique@nrl.navy.mil
FU Office of Naval Research (ONR)
FX The authors thank Steve Hair for his assistance in processing the videos
into the required format. This work was sponsored by the Office of Naval
Research (ONR).
NR 38
TC 14
Z9 14
U1 1
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 0021-8979
J9 J APPL PHYS
JI J. Appl. Phys.
PD AUG 14
PY 2013
VL 114
IS 6
AR 064910
DI 10.1063/1.4817494
PG 9
WC Physics, Applied
SC Physics
GA 201XU
UT WOS:000323177100096
ER
PT J
AU Vo, TT
Zhang, JH
Parrish, DA
Twamley, B
Shreeve, JM
AF Vo, Thao T.
Zhang, Jiaheng
Parrish, Damon A.
Twamley, Brendan
Shreeve, Jean'ne M.
TI New Roles for 1,1-Diamino-2,2-dinitroethene (FOX-7): Halogenated FOX-7
and Azo-bis(diahaloFOX) as Energetic Materials and Oxidizers
SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Article
ID IONIC LIQUIDS; CRYSTAL-STRUCTURE; HYPERGOLIC FUELS; SALTS; COPPER;
THERMOLYSIS; DERIVATIVES; REACTIVITY; COMPLEXES; DISORDER
AB The syntheses and full characterization of two new halogenated 1,1-diamino-2,2-dinitroethene (FOX-7) compounds and three halogenated azo-bridged FOX-7 derivatives are described. Some of these new structures demonstrate properties that approach those of the commonly used secondary explosive RDX (cyclo-1,3,5-trimethylene-2,4,6-trinitramine). All the compounds display hypergolic properties with common hydrazine-based fuels and primary aliphatic amines (ignition delay times of 2-53 ms). This is a new role that has yet to be reported for FOX-7 and its derivatives. Their physical and energetic properties have been investigated. All compounds were characterized by single-crystal X-ray crystallography, elemental analysis, infrared spectra, and differential scanning calorimetry. These new molecules as energetic materials and hypergolic oxidizers contribute to the expansion of the chemistry of FOX-7.
C1 [Vo, Thao T.; Zhang, Jiaheng; Twamley, Brendan; Shreeve, Jean'ne M.] Univ Idaho, Dept Chem, Moscow, ID 83833 USA.
[Parrish, Damon A.] Naval Res Lab, Washington, DC 20375 USA.
RP Shreeve, JM (reprint author), Univ Idaho, Dept Chem, Moscow, ID 83833 USA.
EM jshreeve@uidaho.edu
FU ONR [N00014-12-1-0536, N00014-11-AF-0-0002]; Defense Threat Reduction
Agency [HDTRA 1-11-1-0034]
FX The authors gratefully acknowledge the support of ONR (N00014-12-1-0536
and N00014-11-AF-0-0002), Dr. Clifford Bedford, and the Defense Threat
Reduction Agency (HDTRA 1-11-1-0034). We are indebted to Dr. Illia Guzei
and Scott Economu for considerable assistance with crystal structuring.
NR 39
TC 30
Z9 32
U1 3
U2 70
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 AUG 14
PY 2013
VL 135
IS 32
BP 11787
EP 11790
DI 10.1021/ja406629g
PG 4
WC Chemistry, Multidisciplinary
SC Chemistry
GA 202SZ
UT WOS:000323241200028
PM 23909984
ER
PT J
AU Kuhne, P
Darakchieva, V
Yakimova, R
Tedesco, JD
Myers-Ward, RL
Eddy, CR
Gaskill, DK
Herzinger, CM
Woollam, JA
Schubert, M
Hofmann, T
AF Kuehne, P.
Darakchieva, V.
Yakimova, R.
Tedesco, J. D.
Myers-Ward, R. L.
Eddy, C. R., Jr.
Gaskill, D. K.
Herzinger, C. M.
Woollam, J. A.
Schubert, M.
Hofmann, T.
TI Polarization Selection Rules for Inter-Landau-Level Transitions in
Epitaxial Graphene Revealed by the Infrared Optical Hall Effect
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
AB We report on the polarization selection rules of inter-Landau-level transitions using reflection-type optical Hall effect measurements from 600 to 4000 cm(-1) on epitaxial graphene grown by thermal decomposition of silicon carbide. We observe symmetric and antisymmetric signatures in our data due to polarization preserving and polarization mixing inter-Landau-level transitions, respectively. From field-dependent measurements, we identify that transitions in coupled graphene monolayers are governed by polarization mixing selection rules, whereas transitions in decoupled graphene monolayers are governed by polarization preserving selection rules. The selection rules may find explanation by different coupling mechanisms of inter-Landau-level transitions with free charge carrier magneto-optic plasma oscillations.
C1 [Kuehne, P.; Schubert, M.; Hofmann, T.] Univ Nebraska, Dept Elect Engn, Lincoln, NE 68588 USA.
[Kuehne, P.; Schubert, M.; Hofmann, T.] Univ Nebraska, Ctr Nanohybrid Funct Mat, Lincoln, NE 68588 USA.
[Darakchieva, V.; Yakimova, R.] Linkoping Univ, IFM, Dept Phys Chem & Biol, SE-58183 Linkoping, Sweden.
[Tedesco, J. D.] ABB Inc, Bland, VA 24315 USA.
[Myers-Ward, R. L.; Eddy, C. R., Jr.; Gaskill, D. K.] US Naval Res Lab, Washington, DC 20375 USA.
[Herzinger, C. M.; Woollam, J. A.] JA Woollam Co Inc, Lincoln, NE 68508 USA.
RP Kuhne, P (reprint author), Univ Nebraska, Dept Elect Engn, Lincoln, NE 68588 USA.
EM kuehne@huskers.unl.edu
RI Darakchieva, Vanya/H-3724-2012; Materials, Semiconductor/I-6323-2013;
Hofmann, Tino/B-9194-2013; Schubert, Mathias/B-2676-2017; Kuhne,
Philipp/D-1840-2017
OI Darakchieva, Vanya/0000-0002-8112-7411; Hofmann,
Tino/0000-0003-3362-9959; Schubert, Mathias/0000-0001-6238-663X; Kuhne,
Philipp/0000-0002-8827-7404
FU Army Research Office [W911NF-09-C-0097]; National Science Foundation
[MRSEC DMR-0820521, MRI DMR-0922937, EPS-1004094, DMR0907475];
University of Nebraska-Lincoln; J. A. Woollam Foundation; Office of
Naval Research; Swedish Research Council (VR) [20103848]; Swedish
Governmental Agency for Innovation Systems (VINNOVA) under the VINNMER
international qualification program [2011-03486]
FX The authors would like to acknowledge financial support from the Army
Research Office (D. Woolard, Contract No. W911NF-09-C-0097), the
National Science Foundation (Grants No. MRSEC DMR-0820521, No. MRI
DMR-0922937, No. EPS-1004094, and No. DMR0907475), the University of
Nebraska-Lincoln, the J. A. Woollam Foundation, the Office of Naval
Research, the Swedish Research Council (VR) under Grant No. 20103848
and, the Swedish Governmental Agency for Innovation Systems (VINNOVA)
under the VINNMER international qualification program, Grant No.
2011-03486.
NR 31
TC 8
Z9 8
U1 2
U2 24
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD AUG 14
PY 2013
VL 111
IS 7
AR 077402
DI 10.1103/PhysRevLett.111.077402
PG 5
WC Physics, Multidisciplinary
SC Physics
GA 201RA
UT WOS:000323159500011
PM 23992081
ER
PT J
AU Fears, KP
Petrovykh, DY
Photiadis, SJ
Clark, TD
AF Fears, Kenan P.
Petrovykh, Dmitri Y.
Photiadis, Sara J.
Clark, Thomas D.
TI Circular Dichroism Analysis of Cyclic beta-Helical Peptides Adsorbed on
Planar Fused Quartz
SO LANGMUIR
LA English
DT Article
ID RAY PHOTOELECTRON-SPECTROSCOPY; SUM-FREQUENCY GENERATION;
PROTEIN-STRUCTURE; SECONDARY STRUCTURE; GOLD SURFACES; CONFORMATION;
ADSORPTION; NANOPARTICLES; ORIENTATION; DYNAMICS
AB Conformational changes of three cyclic beta-helical peptides upon adsorption onto planar fused-quartz substrates were detected and analyzed by far-ultraviolet (UV) circular dichroism (CD) spectroscopy. In trifluoroethanol (TFE), hydrophobic peptides, Leu beta and Val beta, form left- and right-handed helices, respectively, and water-soluble peptide WS beta forms a left-handed helix. Upon adsorption, CD spectra showed a mixture of folded and unfolded conformations for Leu beta and Val beta and predominantly unfolded conformations for WS beta. X-ray photoelectron spectroscopy (XPS) provided insight about the molecular mechanisms governing the conformational changes, revealing that ca. 40% of backbone amides in Leu beta and Val beta were interacting with the hydrophilic substrate, while only ca. 15% of the amines/amides in WS beta showed similar interactions. In their folded beta-helical conformations, Leu beta and Val beta present only hydrophobic groups to their surroundings; hydrophilic surface groups can only interact with backbone amides if the peptides change their conformation. Conversely, as a beta helix, WS beta presents hydrophilic side chains to its surroundings that could, in principle, interact with hydrophilic surface groups, with the peptide retaining its folded structure. Instead, the observed unfolded surface conformation for WS beta and the relatively small percentage of surface-bound amides (15 versus 40% for Leu beta and Val beta) suggest that hydrophilic surface groups induce unfolding. Upon this surface-induced unfolding, WS beta interacts with the surface preferentially via hydrophilic side chains rather than backbone amides. In contrast, the unfolded beta-hairpin-like form of WS beta does not irreversibly adsorb on fused quartz from water, highlighting that solvation effects can be more important than initial conformation in governing peptide adsorption. Both label-free methods demonstrated in this work are, in general, applicable to structural analysis of a broad range of biomolecules adsorbed on transparent planar substrates, the surface properties of which could be customized.
C1 [Fears, Kenan P.; Petrovykh, Dmitri Y.; Photiadis, Sara J.; Clark, Thomas D.] Naval Res Lab, Div Chem, Washington, DC 20375 USA.
[Petrovykh, Dmitri Y.] Univ Maryland, Dept Phys, College Pk, MD 20742 USA.
RP Fears, KP (reprint author), Naval Res Lab, Div Chem, Washington, DC 20375 USA.
EM kenan.fears@nrl.navy.mil; thomas.clark@nrl.navy.mil
RI Petrovykh, Dmitri/A-3432-2008
OI Petrovykh, Dmitri/0000-0001-9089-4076
FU Office of Naval Research (ONR); Air Force Office of Scientific Research
(AFOSR); National Research Council
FX This work was supported by the Office of Naval Research (ONR) and the
Air Force Office of Scientific Research (AFOSR). The authors thank
Michael Malito (NOVA Research) for his assistance in the design and
fabrication of the PTFE chamber. Kenan P. Fears thanks the National
Research Council for a Postdoctoral Fellowship at the Naval Research
Laboratory (NRL) during the initial stages of this project.
NR 43
TC 11
Z9 11
U1 1
U2 33
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0743-7463
J9 LANGMUIR
JI Langmuir
PD AUG 13
PY 2013
VL 29
IS 32
BP 10095
EP 10101
DI 10.1021/la401544c
PG 7
WC Chemistry, Multidisciplinary; Chemistry, Physical; Materials Science,
Multidisciplinary
SC Chemistry; Materials Science
GA 202DG
UT WOS:000323193100019
PM 23845110
ER
PT J
AU Casalini, R
Roland, CM
AF Casalini, R.
Roland, C. M.
TI Density Scaling of the Structural and Johari-Goldstein Secondary
Relaxations in Poly(methyl methacrylate)
SO MACROMOLECULES
LA English
DT Article
ID BETA-RELAXATION; SUPERCOOLED LIQUIDS; GLASS-TRANSITION; TEMPERATURE
DEPENDENCES; SEGMENTAL DYNAMICS; ALPHA-RELAXATION; COUPLING MODEL;
POLYMERS; PRESSURE; VOLUME
AB Dielectric spectra were obtained on a low molecular weight poly(methyl methacrylate) (PMMA) over a range of temperatures (331 < T (K) < 386) at pressures approaching 0.8 GPa. The alpha relaxation times, tau(alpha), superpose when plotted versus T/rho(gamma), where rho is density and gamma a material constant, in accord with results for many other van der Waals liquids and polymers. However, the Johari-Goldstein (JG) relaxation times, tau(JG), do not conform to this density scaling for the same value of the exponent gamma. Likewise, the frequency separation of the alpha and JG loss peaks in the spectrum increases with pressure for constant tau(alpha); that is, state points having the same alpha relaxation time and same peak breadth have different tau(JG). Similar results were obtained on a lower molecular weight PMMA, for which there was less overlap of the two peaks. The implication is that density scaling of the segmental relaxation times originates in the glass transition dynamics, not, as recently suggested, in higher frequency secondary processes.
C1 [Casalini, R.; Roland, C. M.] Naval Res Lab, Div Chem, Washington, DC 20375 USA.
RP Casalini, R (reprint author), Naval Res Lab, Div Chem, Code 6120, Washington, DC 20375 USA.
EM roland@nrl.navy.mil; Riccardo.Casalini@nrl.navy.mil
FU Office of Naval Research
FX We thank D. Fragiadakis for many helpful discussions and for the Grafity
software used to carry out the analyses herein. A.R Ellis assisted with
the PVT measurements. This work was supported by the Office of Naval
Research.
NR 43
TC 11
Z9 11
U1 5
U2 29
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0024-9297
J9 MACROMOLECULES
JI Macromolecules
PD AUG 13
PY 2013
VL 46
IS 15
BP 6364
EP 6368
DI 10.1021/ma401210z
PG 5
WC Polymer Science
SC Polymer Science
GA 202DI
UT WOS:000323193300061
ER
PT J
AU Deen, DA
Champlain, JG
Koester, SJ
AF Deen, David A.
Champlain, James G.
Koester, Steven J.
TI Multilayer HfO2/TiO2 gate dielectric engineering of graphene field
effect transistors
SO APPLIED PHYSICS LETTERS
LA English
DT Article
AB Graphene field effect transistors and capacitors that employ ultra-thin atomic layer deposited high-kappa TiO2 dielectrics are demonstrated. Of the three TiO2 gate insulation schemes employed, the sequentially deposited HfO2:TiO2 gate insulator stack enabled the reduction of equivalent oxide thickness while simultaneously providing an ultra-thin gate insulation layer that minimized gate leakage current. The multilayer gate insulation scheme demonstrates a means for advanced device scaling in graphene-based devices. (C) 2013 AIP Publishing LLC.
C1 [Deen, David A.; Koester, Steven J.] Univ Minnesota, Elect & Comp Engn Dept, Minneapolis, MN 55455 USA.
[Champlain, James G.] Naval Res Lab, Elect Sci & Technol Div, Washington, DC 20375 USA.
RP Deen, DA (reprint author), Univ Minnesota, Elect & Comp Engn Dept, Minneapolis, MN 55455 USA.
EM david.deen@alumni.nd.edu
FU Minnesota Partnership for Biotechnology and Medical Genomics; NSF
through the MRSEC program
FX This work was supported by the Minnesota Partnership for Biotechnology
and Medical Genomics. Parts of this work were carried out in the
Characterization Facility (J. Myers), University of Minnesota, which
receives partial support from NSF through the MRSEC program.
NR 20
TC 5
Z9 5
U1 5
U2 38
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 AUG 12
PY 2013
VL 103
IS 7
AR 073504
DI 10.1063/1.4818754
PG 4
WC Physics, Applied
SC Physics
GA 209OS
UT WOS:000323769000089
ER
PT J
AU Zhang, QH
Zhang, JH
Parrish, DA
Shreeve, JM
AF Zhang, Qinghua
Zhang, Jiaheng
Parrish, Damon A.
Shreeve, Jean'ne M.
TI Energetic N-Trinitroethyl-Substituted Mono-, Di-, and Triaminotetrazoles
SO CHEMISTRY-A EUROPEAN JOURNAL
LA English
DT Article
DE aminotetrazoles; energetic materials; heats of formation; heterocycles;
sensitivity
ID NITROGEN-RICH SALTS; 1,5-DIAMINOTETRAZOLE; 5-AMINOTETRAZOLES
AB A series of dense energetic N-trinitroethyl-substituted mono-, bis-, and tri-5-aminotetrazoles were obtained by reacting primary amines with in situ generated cyanogen azide, followed by the trinitroethyl functionalization that involves a condensation of a hydroxymethyl intermediate (prepared by a reaction with formaldehyde) with trinitromethane. 9, with single-crystal XRD analysis. P) and velocities (D-v) of the energetic materials. Interestingly, most of them exhibited high density, good thermal stability, acceptable oxygen balance, positive heat of formation, low impact sensitivity, and excellent detonation properties, which highlighted their practical application potentials as a fascinating class of highly energetic materials.
C1 [Zhang, Qinghua; Zhang, Jiaheng; Shreeve, Jean'ne M.] Univ Idaho, Dept Chem, Moscow, ID 83843 USA.
[Parrish, Damon A.] Naval Res Lab, Washington, DC 20375 USA.
RP Shreeve, JM (reprint author), Univ Idaho, Dept Chem, Moscow, ID 83843 USA.
EM jshreeve@uidhao.edu
RI Zhang, Qinghua/K-4474-2013
OI Zhang, Qinghua/0000-0003-3620-4331
FU ONR [N00014-12-1-0536, N00014-11-AF-0-0002]
FX The authors gratefully acknowledge the support of ONR (N00014-12-1-0536)
and (N00014-11-AF-0-0002), Dr. Clifford Bedford.
NR 42
TC 44
Z9 48
U1 1
U2 45
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA BOSCHSTRASSE 12, D-69469 WEINHEIM, GERMANY
SN 0947-6539
J9 CHEM-EUR J
JI Chem.-Eur. J.
PD AUG 12
PY 2013
VL 19
IS 33
BP 11000
EP 11006
DI 10.1002/chem.201300994
PG 7
WC Chemistry, Multidisciplinary
SC Chemistry
GA 194IX
UT WOS:000322626500035
PM 23794403
ER
PT J
AU Acero, F
Ackermann, M
Ajello, M
Allafort, A
Baldini, L
Ballet, J
Barbiellini, G
Bastieri, D
Bechtol, K
Bellazzini, R
Blandford, RD
Bloom, ED
Bonamente, E
Bottacini, E
Brandt, TJ
Bregeon, J
Brigida, M
Bruel, P
Buehler, R
Buson, S
Caliandro, GA
Cameron, RA
Caraveo, PA
Cecchi, C
Charles, E
Chaves, RCG
Chekhtman, A
Chiang, J
Chiaro, G
Ciprini, S
Claus, R
Cohen-Tanugi, J
Conrad, J
Cutini, S
Dalton, M
D'Ammando, F
de Palma, F
Dermer, CD
Di Venere, L
Silva, EDE
Drell, PS
Drlica-Wagner, A
Falletti, L
Favuzzi, C
Fegan, SJ
Ferrara, EC
Focke, WB
Franckowiak, A
Fukazawa, Y
Funk, S
Fusco, P
Gargano, F
Gasparrini, D
Giglietto, N
Giordano, F
Giroletti, M
Glanzman, T
Godfrey, G
Gregoire, T
Grenier, IA
Grondin, MH
Grove, JE
Guiriec, S
Hadasch, D
Hanabata, Y
Harding, AK
Hayashida, M
Hayashi, K
Hays, E
Hewitt, J
Hill, AB
Horan, D
Hou, X
Hughes, RE
Inoue, Y
Jackson, MS
Jogler, T
Johannesson, G
Johnson, AS
Kamae, T
Kawano, T
Kerr, M
Knodlseder, J
Kuss, M
Lande, J
Larsson, S
Latronico, L
Lemoine-Goumard, M
Longo, F
Loparco, F
Lovellette, MN
Lubrano, P
Marelli, M
Massaro, F
Mayer, M
Mazziotta, MN
McEnery, JE
Mehault, J
Michelson, PF
Mitthumsiri, W
Mizuno, T
Monte, C
Monzani, ME
Morselli, A
Moskalenko, IV
Murgia, S
Nakamori, T
Nemmen, R
Nuss, E
Ohsugi, T
Okumura, A
Orienti, M
Orlando, E
Ormes, JF
Paneque, D
Panetta, JH
Perkins, JS
Pesce-Rollins, M
Piron, F
Pivato, G
Porter, TA
Raino, S
Rando, R
Razzano, M
Reimer, A
Reimer, O
Reposeur, T
Ritz, S
Roth, M
Rousseau, R
Parkinson, PMS
Schulz, A
Sgro, C
Siskind, EJ
Smith, DA
Spandre, G
Spinelli, P
Suson, DJ
Takahashi, H
Takeuchi, Y
Thayer, JG
Thayer, JB
Thompson, DJ
Tibaldo, L
Tibolla, O
Tinivella, M
Torres, DF
Tosti, G
Troja, E
Uchiyama, Y
Vandenbroucke, J
Vasileiou, V
Vianello, G
Vitale, V
Werner, M
Winer, BL
Wood, KS
Yang, Z
AF Acero, F.
Ackermann, M.
Ajello, M.
Allafort, A.
Baldini, L.
Ballet, J.
Barbiellini, G.
Bastieri, D.
Bechtol, K.
Bellazzini, R.
Blandford, R. D.
Bloom, E. D.
Bonamente, E.
Bottacini, E.
Brandt, T. J.
Bregeon, J.
Brigida, M.
Bruel, P.
Buehler, R.
Buson, S.
Caliandro, G. A.
Cameron, R. A.
Caraveo, P. A.
Cecchi, C.
Charles, E.
Chaves, R. C. G.
Chekhtman, A.
Chiang, J.
Chiaro, G.
Ciprini, S.
Claus, R.
Cohen-Tanugi, J.
Conrad, J.
Cutini, S.
Dalton, M.
D'Ammando, F.
de Palma, F.
Dermer, C. D.
Di Venere, L.
do Couto e Silva, E.
Drell, P. S.
Drlica-Wagner, A.
Falletti, L.
Favuzzi, C.
Fegan, S. J.
Ferrara, E. C.
Focke, W. B.
Franckowiak, A.
Fukazawa, Y.
Funk, S.
Fusco, P.
Gargano, F.
Gasparrini, D.
Giglietto, N.
Giordano, F.
Giroletti, M.
Glanzman, T.
Godfrey, G.
Gregoire, T.
Grenier, I. A.
Grondin, M. -H.
Grove, J. E.
Guiriec, S.
Hadasch, D.
Hanabata, Y.
Harding, A. K.
Hayashida, M.
Hayashi, K.
Hays, E.
Hewitt, J.
Hill, A. B.
Horan, D.
Hou, X.
Hughes, R. E.
Inoue, Y.
Jackson, M. S.
Jogler, T.
Johannesson, G.
Johnson, A. S.
Kamae, T.
Kawano, T.
Kerr, M.
Knoedlseder, J.
Kuss, M.
Lande, J.
Larsson, S.
Latronico, L.
Lemoine-Goumard, M.
Longo, F.
Loparco, F.
Lovellette, M. N.
Lubrano, P.
Marelli, M.
Massaro, F.
Mayer, M.
Mazziotta, M. N.
McEnery, J. E.
Mehault, J.
Michelson, P. F.
Mitthumsiri, W.
Mizuno, T.
Monte, C.
Monzani, M. E.
Morselli, A.
Moskalenko, I. V.
Murgia, S.
Nakamori, T.
Nemmen, R.
Nuss, E.
Ohsugi, T.
Okumura, A.
Orienti, M.
Orlando, E.
Ormes, J. F.
Paneque, D.
Panetta, J. H.
Perkins, J. S.
Pesce-Rollins, M.
Piron, F.
Pivato, G.
Porter, T. A.
Raino, S.
Rando, R.
Razzano, M.
Reimer, A.
Reimer, O.
Reposeur, T.
Ritz, S.
Roth, M.
Rousseau, R.
Parkinson, P. M. Saz
Schulz, A.
Sgro, C.
Siskind, E. J.
Smith, D. A.
Spandre, G.
Spinelli, P.
Suson, D. J.
Takahashi, H.
Takeuchi, Y.
Thayer, J. G.
Thayer, J. B.
Thompson, D. J.
Tibaldo, L.
Tibolla, O.
Tinivella, M.
Torres, D. F.
Tosti, G.
Troja, E.
Uchiyama, Y.
Vandenbroucke, J.
Vasileiou, V.
Vianello, G.
Vitale, V.
Werner, M.
Winer, B. L.
Wood, K. S.
Yang, Z.
TI CONSTRAINTS ON THE GALACTIC POPULATION OF TeV PULSAR WIND NEBULAE USING
FERMI LARGE AREA TELESCOPE OBSERVATIONS
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE gamma rays: general
ID GAMMA-RAY PULSARS; COMPOSITE SUPERNOVA REMNANT; YOUNG RADIO PULSAR;
ENERGETIC PSR J1357-6429; BLIND FREQUENCY SEARCHES; XMM-NEWTON
OBSERVATIONS; SOURCE HESS J1303-631; X-RAY; MAGNETIC-FIELD; CRAB-NEBULA
AB Pulsar wind nebulae (PWNe) have been established as the most populous class of TeV gamma-ray emitters. Since launch, the Fermi Large Area Telescope (LAT) has identified five high-energy (100 MeV < E < 100 GeV) gamma-ray sources as PWNe and detected a large number of PWN candidates, all powered by young and energetic pulsars. The wealth of multi-wavelength data available and the new results provided by Fermi-LAT give us an opportunity to find new PWNe and to explore the radiative processes taking place in known ones. The TeV gamma-ray unidentified (UNID) sources are the best candidates for finding new PWNe. Using 45 months of Fermi-LAT data for energies above 10 GeV, an analysis was performed near the position of 58 TeV PWNe and UNIDs within 5. of the Galactic plane to establish new constraints on PWN properties and find new clues on the nature of UNIDs. Of the 58 sources, 30 were detected, and this work provides their gamma-ray fluxes for energies above 10 GeV. The spectral energy distributions and upper limits, in the multi-wavelength context, also provide new information on the source nature and can help distinguish between emission scenarios, i.e., between classification as a pulsar candidate or as a PWN candidate. Six new GeV PWN candidates are described in detail and compared with existing models. A population study of GeV PWN candidates as a function of the pulsar/PWN system characteristics is presented.
C1 [Acero, F.; Brandt, T. J.; Ferrara, E. C.; Guiriec, S.; Harding, A. K.; Hays, E.; Hewitt, J.; McEnery, J. E.; Nemmen, R.; Perkins, J. S.; Thompson, D. J.; Troja, E.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Ackermann, M.; Mayer, M.; Schulz, A.] Deutsch Elektronen Synchrotron DESY, D-15738 Zeuthen, Germany.
[Ajello, M.] Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA.
[Allafort, A.; Bechtol, K.; Blandford, R. D.; Bloom, E. D.; Bottacini, E.; Buehler, R.; Cameron, R. A.; Charles, E.; Chiang, J.; Claus, R.; Di Venere, L.; do Couto e Silva, E.; Drell, P. S.; Drlica-Wagner, A.; Focke, W. B.; Franckowiak, A.; Funk, S.; Glanzman, T.; Godfrey, G.; Hayashida, M.; Hill, A. B.; Inoue, Y.; Jogler, T.; Johnson, A. S.; Kamae, T.; Kerr, M.; Lande, J.; Massaro, F.; Michelson, P. F.; Mitthumsiri, W.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Okumura, A.; Orlando, E.; Paneque, D.; Panetta, J. H.; Porter, T. A.; Reimer, A.; Reimer, O.; Thayer, J. G.; Thayer, J. B.; Uchiyama, Y.; Vandenbroucke, J.; Vianello, G.] Stanford Univ, Kavli Inst Particle Astrophys & Cosmol, WW Hansen Expt Phys Lab, Dept Phys, Stanford, CA 94305 USA.
[Allafort, A.; Bechtol, K.; Blandford, R. D.; Bloom, E. D.; Bottacini, E.; Buehler, R.; Cameron, R. A.; Charles, E.; Chiang, J.; Claus, R.; Di Venere, L.; do Couto e Silva, E.; Drell, P. S.; Drlica-Wagner, A.; Focke, W. B.; Franckowiak, A.; Funk, S.; Glanzman, T.; Godfrey, G.; Hayashida, M.; Hill, A. B.; Inoue, Y.; Jogler, T.; Johnson, A. S.; Kamae, T.; Kerr, M.; Lande, J.; Massaro, F.; Michelson, P. F.; Mitthumsiri, W.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Okumura, A.; Orlando, E.; Paneque, D.; Panetta, J. H.; Porter, T. A.; Reimer, A.; Reimer, O.; Thayer, J. G.; Thayer, J. B.; Uchiyama, Y.; Vandenbroucke, J.; Vianello, G.] Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA.
[Baldini, L.] Univ Pisa, I-56127 Pisa, Italy.
[Baldini, L.; Bellazzini, R.; Bregeon, J.; Kuss, M.; Pesce-Rollins, M.; Razzano, M.; Sgro, C.; Spandre, G.; Tinivella, M.] Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy.
[Ballet, J.; Chaves, R. C. G.; Grenier, I. A.] Univ Paris Diderot, CNRS, Serv Astrophys, Lab AIM,CEA IRFU,CEA Saclay, F-91191 Gif Sur Yvette, France.
[Barbiellini, G.; Longo, F.] Ist Nazl Fis Nucl, Sez Trieste, I-34127 Trieste, Italy.
[Barbiellini, G.; Longo, F.] Univ Trieste, Dipartimento Fis, I-34127 Trieste, Italy.
[Bastieri, D.; Buson, S.; Rando, R.] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy.
[Bastieri, D.; Buson, S.; Chiaro, G.; Pivato, G.; Rando, R.] Univ Padua, Dipartimento Fis & Astron G Galilei, I-35131 Padua, Italy.
[Bonamente, E.; Cecchi, C.; Lubrano, P.; Tosti, G.] Ist Nazl Fis Nucl, Sez Perugia, I-06123 Perugia, Italy.
[Bonamente, E.; Cecchi, C.; Lubrano, P.; Tosti, G.] Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Giglietto, N.; Giordano, F.; Loparco, F.; Monte, C.; Raino, S.; Spinelli, P.] Univ Politecn Bari, Dipartimento Fis M Merlin, I-70126 Bari, Italy.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Gargano, F.; Giglietto, N.; Giordano, F.; Loparco, F.; Mazziotta, M. N.; Monte, C.; Raino, S.; Spinelli, P.] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy.
[Bruel, P.; Fegan, S. J.; Horan, D.] Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France.
[Caliandro, G. A.; Hadasch, D.; Torres, D. F.] Inst Ciencies Espai IEEE CSIC, E-08193 Barcelona, Spain.
[Caraveo, P. A.; Marelli, M.] INAF Ist Astrofis Spaziale & Fis Cosm, I-20133 Milan, Italy.
[Chekhtman, A.] George Mason Univ, Coll Sci, Ctr Earth Observing & Space Res, Fairfax, VA 22030 USA.
[Ciprini, S.; Cutini, S.; Gasparrini, D.] Agenzia Spaziale Italiana, Sci Data Ctr, I-00044 Frascati, Italy.
[Ciprini, S.; Cutini, S.; Gasparrini, D.] Osserv Astron Roma, Ist Nazl Astrofis, I-00040 Monte Porzio Catone, Italy.
[Cohen-Tanugi, J.; Falletti, L.; Nuss, E.; Piron, F.; Vasileiou, V.] Univ Montpellier 2, CNRS, IN2P3, Lab Univers & Particules Montpellier, F-34095 Montpellier, France.
[Conrad, J.; Larsson, S.; Yang, Z.] Stockholm Univ, Dept Phys, AlbaNova, SE-10691 Stockholm, Sweden.
[Conrad, J.; Jackson, M. S.; Larsson, S.; Yang, Z.] Stockholm Univ, Oskar Klein Ctr Cosmoparticle Phys, AlbaNova, SE-10691 Stockholm, Sweden.
[Conrad, J.] Royal Swedish Acad Sci, SE-10405 Stockholm, Sweden.
[Dalton, M.; Hou, X.; Lemoine-Goumard, M.; Mehault, J.; Reposeur, T.; Rousseau, R.; Smith, D. A.] Univ Bordeaux 1, CNRS, IN2p3, CEN Bordeaux Gradignan, F-33175 Gradignan, France.
[D'Ammando, F.; Giroletti, M.; Orienti, M.] INAF Ist Radioastron, I-40129 Bologna, Italy.
[Dermer, C. D.; Grove, J. E.; Lovellette, M. N.; Wood, K. S.] Naval Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Fukazawa, Y.; Hanabata, Y.; Hayashi, K.; Kawano, T.; Takahashi, H.] Hiroshima Univ, Dept Phys Sci, Higashihiroshima, Hiroshima 7398526, Japan.
[Gregoire, T.; Grondin, M. -H.; Knoedlseder, J.] CNRS, IRAP, F-31028 Toulouse 4, France.
[Gregoire, T.; Grondin, M. -H.; Knoedlseder, J.] Univ Toulouse, GAHEC, UPS OMP, IRAP, F-31028 Toulouse, France.
[Hayashida, M.] Kyoto Univ, Grad Sch Sci, Dept Astron, Sakyo Ku, Kyoto 6068502, Japan.
[Hill, A. B.] Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England.
[Hughes, R. E.; Winer, B. L.] Ohio State Univ, Ctr Cosmol & Astroparticle Phys, Dept Phys, Columbus, OH 43210 USA.
[Jackson, M. S.] Royal Inst Technol KTH, Dept Phys, AlbaNova, SE-10691 Stockholm, Sweden.
[Johannesson, G.] Univ Iceland, Inst Sci, IS-107 Reykjavik, Iceland.
[Larsson, S.] Stockholm Univ, Dept Astron, SE-10691 Stockholm, Sweden.
[Latronico, L.] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy.
[McEnery, J. E.] Univ Maryland, Dept Phys, College Pk, MD 20742 USA.
[McEnery, J. E.] Univ Maryland, Dept Astron, College Pk, MD 20742 USA.
[Mizuno, T.; Ohsugi, T.] Hiroshima Univ, Hiroshima Astrophys Sci Ctr, Higashihiroshima, Hiroshima 7398526, Japan.
[Morselli, A.; Vitale, V.] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, I-00133 Rome, Italy.
[Nakamori, T.; Takeuchi, Y.] Waseda Univ, Res Inst Sci & Engn, Shinjuku Ku, Tokyo 1698555, Japan.
[Okumura, A.] Nagoya Univ, Solar Terr Environm Lab, Nagoya, Aichi 4648601, Japan.
[Ormes, J. F.] Univ Denver, Dept Phys & Astron, Denver, CO 80208 USA.
[Paneque, D.] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany.
[Perkins, J. S.] Univ Maryland Baltimore Cty, Dept Phys, Baltimore, MD 21250 USA.
[Perkins, J. S.] Univ Maryland Baltimore Cty, Ctr Space Sci & Technol, Baltimore, MD 21250 USA.
[Perkins, J. S.] NASA, Goddard Space Flight Ctr, Ctr Res & Explorat Space Sci & Technol, Greenbelt, MD 20771 USA.
[Perkins, J. S.] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA.
[Razzano, M.; Ritz, S.; Parkinson, P. M. Saz] Univ Calif Santa Cruz, Santa Cruz Inst Particle Phys, Dept Phys, Santa Cruz, CA 95064 USA.
[Razzano, M.; Ritz, S.; Parkinson, P. M. Saz] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA.
[Reimer, A.; Reimer, O.; Werner, M.] Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria.
[Reimer, A.; Reimer, O.; Werner, M.] Leopold Franzens Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria.
[Roth, M.] Univ Washington, Dept Phys, Seattle, WA 98195 USA.
[Siskind, E. J.] NYCB Real Time Comp Inc, Lattingtown, NY 11560 USA.
[Suson, D. J.] Purdue Univ Calumet, Dept Chem & Phys, Hammond, IN 46323 USA.
[Tibolla, O.] Univ Wurzburg, Inst Theoret Phys & Astrophys, D-97074 Wurzburg, Germany.
[Torres, D. F.] ICREA, E-08010 Barcelona, Spain.
[Vianello, G.] Consorzio Interuniv Fis Spaziale, I-10133 Turin, Italy.
[Vitale, V.] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy.
RP Acero, F (reprint author), NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
EM funk@slac.stanford.edu; joshualande@gmail.com; lemoine@cenbg.in2p3.fr;
rousseau@cenbg.in2p3.fr
RI Massaro, Francesco/L-9102-2016; Torres, Diego/O-9422-2016; Orlando,
E/R-5594-2016; Di Venere, Leonardo/C-7619-2017; Saz Parkinson, Pablo
Miguel/I-7980-2013; Sgro, Carmelo/K-3395-2016; Rando,
Riccardo/M-7179-2013; Hays, Elizabeth/D-3257-2012; Reimer,
Olaf/A-3117-2013; Morselli, Aldo/G-6769-2011; Nemmen,
Rodrigo/O-6841-2014; Funk, Stefan/B-7629-2015; Johannesson,
Gudlaugur/O-8741-2015; Loparco, Francesco/O-8847-2015; Gargano,
Fabio/O-8934-2015; giglietto, nicola/I-8951-2012; Moskalenko,
Igor/A-1301-2007;
OI Massaro, Francesco/0000-0002-1704-9850; Torres,
Diego/0000-0002-1522-9065; Di Venere, Leonardo/0000-0003-0703-824X;
Inoue, Yoshiyuki/0000-0002-7272-1136; Caraveo,
Patrizia/0000-0003-2478-8018; Sgro', Carmelo/0000-0001-5676-6214;
SPINELLI, Paolo/0000-0001-6688-8864; Rando,
Riccardo/0000-0001-6992-818X; Hill, Adam/0000-0003-3470-4834; Bastieri,
Denis/0000-0002-6954-8862; Pesce-Rollins, Melissa/0000-0003-1790-8018;
Reimer, Olaf/0000-0001-6953-1385; Morselli, Aldo/0000-0002-7704-9553;
Funk, Stefan/0000-0002-2012-0080; Johannesson,
Gudlaugur/0000-0003-1458-7036; Loparco, Francesco/0000-0002-1173-5673;
Gargano, Fabio/0000-0002-5055-6395; giglietto,
nicola/0000-0002-9021-2888; Moskalenko, Igor/0000-0001-6141-458X;
orienti, monica/0000-0003-4470-7094; Giroletti,
Marcello/0000-0002-8657-8852; Mazziotta, Mario
Nicola/0000-0001-9325-4672; Gasparrini, Dario/0000-0002-5064-9495;
Baldini, Luca/0000-0002-9785-7726; Marelli, Martino/0000-0002-8017-0338
FU K. A. Wallenberg Foundation; European Community [ERC-StG-259391]; Marie
Curie IOF [275861]
FX Royal Swedish Academy of Sciences Research Fellow, funded by a grant
from the K. A. Wallenberg Foundation.; Funded by contract ERC-StG-259391
from the European Community.; Funded by a Marie Curie IOF,
FP7/2007-2013, grant agreement No. 275861.
NR 159
TC 28
Z9 28
U1 0
U2 19
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 AUG 10
PY 2013
VL 773
IS 1
AR 77
DI 10.1088/0004-637X/773/1/77
PG 27
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 193BN
UT WOS:000322531900077
ER
PT J
AU MacLeod, CL
Jones, R
Agol, E
Kochanek, CS
AF MacLeod, Chelsea L.
Jones, Ramsey
Agol, Eric
Kochanek, Christopher S.
TI DETECTION OF SUBSTRUCTURE IN THE GRAVITATIONALLY LENSED QUASAR
MG0414+0534 USING MID-INFRARED AND RADIO VLBI OBSERVATIONS
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE galaxies: structure; gravitational lensing: strong
ID FLUX-RATIO ANOMALIES; DARK-MATTER SUBSTRUCTURE; MG 0414+0534; GALACTIC
SATELLITES; ACCRETION DISC; HE 0435-1223; TIME DELAYS; GALAXIES;
J0414+0534; TELESCOPE
AB We present 11.2 mu m observations of the gravitationally lensed, radio-loud z(s) = 2.64 quasar MG0414+0534, obtained using the Michelle camera on Gemini North. We find a flux ratio anomaly of A2/A1 = 0.93 +/- 0.02 for the quasar images A1 and A2. When combined with the 11.7 mu m measurements from Minezaki et al., the A2/A1 flux ratio is nearly 5 sigma from the expected ratio for a model based on the two visible lens galaxies. The mid-IR flux ratio anomaly can be explained by a satellite (substructure), 0 ''.3 northeast of image A2, as can the detailed very long baseline interferometry (VLBI) structures of the jet produced by the quasar. When we combine the mid-IR flux ratios with high-resolution VLBI measurements, we find a best-fit mass between 10(6.2) and 10(7.5) M-circle dot inside the Einstein radius for a satellite substructure modeled as a singular isothermal sphere at the redshift of the main lens (z(l) = 0.96). We are unable to set an interesting limit on the mass to light ratio due to its proximity to the quasar image A2. While the observations used here were technically difficult, surveys of flux anomalies in gravitational lenses with the James Webb Space Telescope will be simple, fast, and should well constrain the abundance of substructure in dark matter halos.
C1 [MacLeod, Chelsea L.] US Naval Acad, Dept Phys, Annapolis, MD 21403 USA.
[Jones, Ramsey; Agol, Eric] Univ Washington, Dept Astron, Seattle, WA 98195 USA.
[Kochanek, Christopher S.] Ohio State Univ, Dept Astron, Columbus, OH 43210 USA.
[Kochanek, Christopher S.] Ohio State Univ, Ctr Cosmol & Astroparticle Phys, Columbus, OH 43210 USA.
RP MacLeod, CL (reprint author), US Naval Acad, Dept Phys, Annapolis, MD 21403 USA.
EM macleod@usna.edu
OI /0000-0002-0802-9145
FU Gemini Observatory [GN-2005B-Q-43]; NASA through Space Telescope Science
Institute [GO-7495]; NASA [NAS5-2655]; National Science Foundation
[0645416]; NSF [AST-1009756]
FX We thank the reviewer for his/her valuable comments and suggestions that
improved the manuscript. This work is based on observations obtained at
the Gemini Observatory (with Program ID GN-2005B-Q-43), 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 e Tecnologia (Brazil) and
Ministerio de Ciencia, Tecnologia e Innovacion Productiva (Argentina).
This work is based in part on observations made with the NASA/ESA Hubble
Space Telescope. Support for program GO-7495 was provided by NASA
through a grant from the Space Telescope Science Institute, which is
operated by AURA, Inc., under NASA contract NAS5-2655. E. A. is
partially supported by National Science Foundation CAREER Grant No.
0645416. C. S. K. is supported by NSF grant AST-1009756.
NR 48
TC 15
Z9 15
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 AUG 10
PY 2013
VL 773
IS 1
AR 35
DI 10.1088/0004-637X/773/1/35
PG 8
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 193BN
UT WOS:000322531900035
ER
PT J
AU Bhattacharyya, B
Roy, J
Ray, PS
Gupta, Y
Bhattacharya, D
Romani, RW
Ransom, SM
Ferrara, EC
Wolff, MT
Camilo, F
Cognard, I
Harding, AK
den Hartog, PR
Johnston, S
Keith, M
Kerr, M
Michelson, PF
Parkinson, PMS
Wood, DL
Wood, KS
AF Bhattacharyya, B.
Roy, J.
Ray, P. S.
Gupta, Y.
Bhattacharya, D.
Romani, R. W.
Ransom, S. M.
Ferrara, E. C.
Wolff, M. T.
Camilo, F.
Cognard, I.
Harding, A. K.
den Hartog, P. R.
Johnston, S.
Keith, M.
Kerr, M.
Michelson, P. F.
Parkinson, P. M. Saz
Wood, D. L.
Wood, K. S.
TI GMRT DISCOVERY OF PSR J1544+4937: AN ECLIPSING BLACK-WIDOW PULSAR
IDENTIFIED WITH A FERMI-LAT SOURCE
SO ASTROPHYSICAL JOURNAL LETTERS
LA English
DT Article
DE binaries: eclipsing; pulsars: general; pulsars: individual (PSR
J1544+4937)
ID LARGE-AREA TELESCOPE; MILLISECOND PULSAR; BINARY; CATALOG
AB Using the Giant Metrewave Radio Telescope, we performed deep observations to search for radio pulsations in the directions of unidentified Fermi-Large Area Telescope gamma-ray sources. We report the discovery of an eclipsing black-widow millisecond pulsar, PSR J1544+4937, identified with the uncataloged gamma-ray source Fermi J1544.2+4941. This 2.16 ms pulsar is in a 2.9 hr compact circular orbit with a very low mass companion (M-c > 0.017 M-circle dot). At 322 MHz this pulsar is found to be eclipsing for 13% of its orbit, whereas at 607 MHz the pulsar is detected throughout the low-frequency eclipse phase. Variations in the eclipse ingress phase are observed, indicating a clumpy and variable eclipsing medium. Moreover, additional short-duration absorption events are observed around the eclipse boundaries. Using the radio timing ephemeris we were able to detect gamma-ray pulsations from this pulsar, confirming it as the source powering the gamma-ray emission.
C1 [Bhattacharyya, B.; Roy, J.; Gupta, Y.] Tata Inst Fundamental Res, Natl Ctr Radio Astrophys, Pune 411007, Maharashtra, India.
[Ray, P. S.; Wolff, M. T.; Wood, K. S.] Naval Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Bhattacharya, D.] Interuniv Ctr Astron & Astrophys, Pune 411007, Maharashtra, India.
[Romani, R. W.; den Hartog, P. R.; Kerr, M.; Michelson, P. F.] Stanford Univ, Dept Phys, Kavli Inst Particle Astrophys & Cosmol, WW Hansen Expt Phys Lab, Stanford, CA 94305 USA.
[Romani, R. W.; den Hartog, P. R.; Kerr, M.; Michelson, P. F.] Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA.
[Ransom, S. M.] NRAO, Charlottesville, VA 22903 USA.
[Ferrara, E. C.; Harding, A. K.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Camilo, F.] Columbia Univ, Columbia Astrophys Lab, New York, NY 10027 USA.
[Camilo, F.] Arecibo Observ, Arecibo, PR 00612 USA.
[Cognard, I.] CNRS, LPCE, UMR 6115, F-45071 Orleans 02, France.
[Cognard, I.] CNRS, INSU, Observ Paris, Stn Radioastron Nancay, F-18330 Nancay, France.
[Johnston, S.; Keith, M.] CSIRO Astron & Space Sci, Australia Telescope Natl Facil, Epping, NSW 1710, Australia.
[Parkinson, P. M. Saz] Univ Calif Santa Cruz, Dept Phys, Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA.
[Parkinson, P. M. Saz] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA.
[Wood, D. L.] Praxis Inc, Alexandria, VA 22303 USA.
[Wood, D. L.] Naval Res Lab, Washington, DC 20375 USA.
RP Bhattacharyya, B (reprint author), Tata Inst Fundamental Res, Natl Ctr Radio Astrophys, Pune 411007, Maharashtra, India.
RI Saz Parkinson, Pablo Miguel/I-7980-2013; Bhattacharya,
Dipankar/J-6927-2015;
OI Bhattacharya, Dipankar/0000-0003-3352-3142; Ransom,
Scott/0000-0001-5799-9714; Ray, Paul/0000-0002-5297-5278
FU NASA; DOE in the United States; CEA/Irfu; IN2P3/CNRS in France; ASI;
INFN in Italy; MEXT; KEK; JAXA in Japan; K. A. Wallenberg Foundation;
Swedish Research Council; National Space Board in Sweden; INAF in Italy;
CNES in France
FX The Fermi-LAT Collaboration acknowledges support from a number of
agencies and institutes for both development and the operation of the
LAT as well as scientific data analysis. These include NASA and DOE in
the United States, CEA/Irfu and IN2P3/CNRS in France, ASI and INFN in
Italy, MEXT, KEK, and JAXA in Japan, and the K. A. Wallenberg
Foundation, the Swedish Research Council, and the National Space Board
in Sweden. Additional support from INAF in Italy and CNES in France for
science analysis during the operations phase is also gratefully
acknowledged. We acknowledge the support of the telescope operators of
the GMRT, which is run by the National Centre for Radio Astrophysics of
the Tata Institute of Fundamental Research. We thank the Swift team at
the Pennsylvania State University, especially Abe Falcone. We
acknowledge help of C. Cheung in interpreting the XRT data. We thank D.
Thompson and T. Johnson for their comments and R. Breton for a
discussion of heating fluxes.
NR 22
TC 9
Z9 9
U1 0
U2 1
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 2041-8205
J9 ASTROPHYS J LETT
JI Astrophys. J. Lett.
PD AUG 10
PY 2013
VL 773
IS 1
AR L12
DI 10.1088/2041-8205/773/1/L12
PG 6
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 192AF
UT WOS:000322455600012
ER
PT J
AU LeardMann, CA
Powell, TM
Smith, TC
Bell, MR
Smith, B
Boyko, EJ
Hooper, TI
Gackstetter, GD
Ghamsary, M
Hoge, CW
AF LeardMann, Cynthia A.
Powell, Teresa M.
Smith, Tyler C.
Bell, Michael R.
Smith, Besa
Boyko, Edward J.
Hooper, Tomoko I.
Gackstetter, Gary D.
Ghamsary, Mark
Hoge, Charles W.
TI Risk Factors Associated With Suicide in Current and Former US Military
Personnel
SO JAMA-JOURNAL OF THE AMERICAN MEDICAL ASSOCIATION
LA English
DT Article
ID POSTTRAUMATIC-STRESS-DISORDER; NATIONAL-DEATH-INDEX; MILLENNIUM COHORT;
SERVICE MEMBERS; PRIMARY-CARE; VITAL STATUS; FOLLOW-UP; PRIME-MD;
HEALTH; POPULATION
AB IMPORTANCE Beginning in 2005, the incidence of suicide deaths in the US military began to sharply increase. Unique stressors, such as combat deployments, have been assumed to underlie the increasing incidence. Previous military suicide studies, however, have relied on case series and cross-sectional investigations and have not linked data during service with postservice periods.
OBJECTIVE To prospectively identify and quantify risk factors associated with suicide in current and former US military personnel including demographic, military, mental health, behavioral, and deployment characteristics.
DESIGN, SETTING, AND PARTICIPANTS Prospective longitudinal study with accrual and assessment of participants in 2001, 2004, and 2007. Questionnaire data were linked with the National Death Index and the Department of Defense Medical Mortality Registry through December 31, 2008. Participants were current and former US military personnel from all service branches, including active and Reserve/National Guard, who were included in the Millennium Cohort Study (N = 151 560).
MAIN OUTCOMES AND MEASURES Death by suicide captured by the National Death Index and the Department of Defense Medical Mortality Registry.
RESULTS Through the end of 2008, findings were 83 suicides in 707 493 person-years of follow-up (11.73/100 000 person-years [95% CI, 9.21-14.26]). In Cox models adjusted for age and sex, factors significantly associated with increased risk of suicide included male sex, depression, manic-depressive disorder, heavy or binge drinking, and alcohol-related problems. None of the deployment-related factors (combat experience, cumulative days deployed, or number of deployments) were associated with increased suicide risk in any of the models. In multivariable Cox models, individuals with increased risk for suicide were men (hazard ratio [HR], 2.14; 95% CI, 1.17-3.92; P = .01; attributable risk [AR], 3.5 cases/10 000 persons), and those with depression (HR, 1.96; 95% CI, 1.05-3.64; P = .03; AR, 6.9/10 000 persons), manic-depressive disorder (HR, 4.35; 95% CI, 1.56-12.09; P = .005; AR, 35.6/10 000 persons), or alcohol-related problems (HR, 2.56; 95% CI, 1.56-4.18; P < .001; AR, 7.7/10 000 persons). A nested, matched case-control analysis using 20: 1 control participants per case confirmed these findings.
CONCLUSIONS AND RELEVANCE In this sample of current and former military personnel observed July 1, 2001-December 31, 2008, suicide risk was independently associated with male sex and mental disorders but not with military-specific variables. These findings may inform approaches to mitigating suicide risk in this population.
C1 [LeardMann, Cynthia A.; Powell, Teresa M.; Smith, Tyler C.; Smith, Besa] Naval Hlth Res Ctr, Dept Deployment Hlth Res, San Diego, CA 92106 USA.
[Smith, Tyler C.] Natl Univ, Sch Hlth & Human Serv, San Diego, CA USA.
[Smith, Besa] Univ Calif San Diego, Dept Family & Prevent Med, San Diego, CA 92103 USA.
[Bell, Michael R.; Hooper, Tomoko I.] Uniformed Serv Univ Hlth Sci, Dept Prevent Med & Biometr, Bethesda, MD 20814 USA.
[Boyko, Edward J.] Vet Affairs Puget Sound Hlth Care Syst, Seattle Epidemiol Res & Informat Ctr, Seattle, WA USA.
[Gackstetter, Gary D.] Analyt Serv Inc, Arlington, VA USA.
[Ghamsary, Mark] Loma Linda Univ, Sch Publ Hlth, Loma Linda, CA 92350 USA.
[Hoge, Charles W.] Walter Reed Army Inst Res, Silver Spring, MD 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
FU Department of Defense [12-53, 60002]; Military Operational Medicine
Research Program of the US Army Medical Research and Materiel Command,
Fort Detrick, Maryland; VA Puget Sound Health Care System
FX This work represents report 12-53, supported by the Department of
Defense, under work unit no. 60002. The Millennium Cohort Study is
funded through the Military Operational Medicine Research Program of the
US Army Medical Research and Materiel Command, Fort Detrick, Maryland.
Dr Boyko's effort in this project was supported by VA Puget Sound Health
Care System.
NR 38
TC 108
Z9 108
U1 4
U2 33
PU AMER MEDICAL ASSOC
PI CHICAGO
PA 330 N WABASH AVE, STE 39300, CHICAGO, IL 60611-5885 USA
SN 0098-7484
EI 1538-3598
J9 JAMA-J AM MED ASSOC
JI JAMA-J. Am. Med. Assoc.
PD AUG 7
PY 2013
VL 310
IS 5
BP 496
EP 506
DI 10.1001/jama.2013.65164
PG 11
WC Medicine, General & Internal
SC General & Internal Medicine
GA 196OZ
UT WOS:000322786400022
PM 23925620
ER
PT J
AU Raphael, MP
Christodoulides, JA
Delehanty, JB
Long, JP
Byers, JM
AF Raphael, Marc P.
Christodoulides, Joseph A.
Delehanty, James B.
Long, James P.
Byers, Jeff M.
TI Quantitative Imaging of Protein Secretions from Single Cells in Real
Time
SO BIOPHYSICAL JOURNAL
LA English
DT Article
ID SURFACE-PLASMON RESONANCE; CYTOKINES; PRODUCTIVITY; SPECTROSCOPY;
SENSITIVITY; BIOSENSORS; RESOLUTION; RESPONSES; ASSAY; IGG
AB Protein secretions from individual cells create spatially and temporally varying concentration profiles in the extracellular environment, which guide a wide range of biological processes such as wound healing and angiogenesis. Fluorescent and colorimetric probes for the detection of single cell secretions have time resolutions that range from hours to days, and as a result, little is known about how individual cells may alter their protein secretion rates on the timescale of minutes or seconds. Here, we present a label-free technique based upon nanoplasmonic imaging, which enabled the measurement of individual cell secretions in real time. When applied to the detection of antibody secretions from single hybridoma cells, the enhanced time resolution revealed two modes of secretion: one in which the cell secreted continuously and another in which antibodies were released in concentrated bursts that coincided with minute-long morphological contractions of the cell. From the continuous secretion measurements we determined the local concentration of antibodies at the sensing array closest to the cell and from the bursts we estimated the diffusion constant of the secreted antibodies through the extracellular media. The design also incorporates transmitted light and fluorescence microscopy capabilities for monitoring cellular morphological changes and intracellular fluorescent labels. We anticipate that this technique can be adapted as a general tool for the quantitative study of paracrine signaling in both adherent and nonadherent cell lines.
C1 [Raphael, Marc P.; Christodoulides, Joseph A.; Byers, Jeff M.] Naval Res Lab, Mat Sci & Technol Div, Washington, DC USA.
[Delehanty, James B.] Naval Res Lab, BioMol Sci & Engn Div, Washington, DC USA.
[Long, James P.] Naval Res Lab, Div Chem, Washington, DC USA.
RP Raphael, MP (reprint author), Naval Res Lab, Mat Sci & Technol Div, Code 6300, Washington, DC USA.
EM marc.raphael@nrl.navy.mil
FU Naval Research Laboratory's Institute for Nanoscience
FX This work was supported by the Naval Research Laboratory's Institute for
Nanoscience.
NR 28
TC 10
Z9 10
U1 4
U2 38
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 AUG 6
PY 2013
VL 105
IS 3
BP 602
EP 608
DI 10.1016/j.bpj.2013.06.022
PG 7
WC Biophysics
SC Biophysics
GA 201KS
UT WOS:000323141100010
PM 23931308
ER
PT J
AU Billings, L
Mier-y-Teran-Romero, L
Lindley, B
Schwartz, IB
AF Billings, Lora
Mier-y-Teran-Romero, Luis
Lindley, Brandon
Schwartz, Ira B.
TI Intervention-Based Stochastic Disease Eradication
SO PLOS ONE
LA English
DT Article
ID STABLE STATES; OPTIMAL PATHS; EXTINCTION; EPIDEMICS; MODELS;
FLUCTUATIONS; POPULATIONS; TRANSITIONS; VACCINATION; SYSTEMS
AB Disease control is of paramount importance in public health, with infectious disease extinction as the ultimate goal. Although diseases may go extinct due to random loss of effective contacts where the infection is transmitted to new susceptible individuals, the time to extinction in the absence of control may be prohibitively long. Intervention controls are typically defined on a deterministic schedule. In reality, however, such policies are administered as a random process, while still possessing a mean period. Here, we consider the effect of randomly distributed intervention as disease control on large finite populations. We show explicitly how intervention control, based on mean period and treatment fraction, modulates the average extinction times as a function of population size and rate of infection spread. In particular, our results show an exponential improvement in extinction times even though the controls are implemented using a random Poisson distribution. Finally, we discover those parameter regimes where random treatment yields an exponential improvement in extinction times over the application of strictly periodic intervention. The implication of our results is discussed in light of the availability of limited resources for control.
C1 [Billings, Lora] Montclair State Univ, Dept Math Sci, Montclair, NJ USA.
[Mier-y-Teran-Romero, Luis; Lindley, Brandon; Schwartz, Ira B.] US Naval Res Lab, Nonlinear Syst Dynam Sect, Div Plasma Phys, Washington, DC USA.
[Mier-y-Teran-Romero, Luis] Johns Hopkins Bloomberg Sch Publ Hlth, Dept Int Hlth, Baltimore, MD USA.
RP Billings, L (reprint author), Montclair State Univ, Dept Math Sci, Montclair, NJ USA.
EM billingsl@mail.montclair.edu
FU Office of Naval Research; National Institute of General Medical Sciences
Award [R01GM090204]; NSF [CMMI-1233397, DMS-0959461]
FX We gratefully acknowledge support from the Office of Naval Research. LB,
LM, and IBS are supported by the National Institute of General Medical
Sciences Award No. R01GM090204. 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. BL is currently an NRC Postdoctoral Fellow. LB is
also supported by NSF Award CMMI-1233397. The computational equipment is
supported by NSF Award DMS-0959461. The funders had no role in study
design, data collection and analysis, decision to publish, or
preparation of the manuscript.
NR 49
TC 11
Z9 11
U1 0
U2 9
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 AUG 5
PY 2013
VL 8
IS 8
AR e70211
DI 10.1371/journal.pone.0070211
PG 9
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 218XC
UT WOS:000324465000042
PM 23940548
ER
PT J
AU McCracken, JM
AF McCracken, James M.
TI Hamiltonian composite dynamics can almost always lead to negative
reduced dynamics
SO PHYSICAL REVIEW A
LA English
DT Article
ID QUANTUM PROCESS TOMOGRAPHY; NEED; MAPS
AB Complete positivity is a ubiquitous assumption in the study of quantum systems interacting with the environment. It will be shown that Hamiltonian evolution of a quantum system and its environment can be negative (i.e., not completely positive) in the energy basis, by showing that such evolution is almost always negative for given initial conditions. As such, ignoring or "correcting" experimental data that is not completely positive may cause the loss of important information regarding system-environment correlations and coupling. Complete positivity assumptions are an important part of many quantum information theories and it is important to understand how (and why) it appears to be possible to violate the complete positivity requirement in the examples presented here. A relationship between the negativity of an evolution and the eigenvalues of the Hamiltonian will be shown and experimental verification of negative reduced dynamics will be proposed.
C1 US Naval Res Lab, Washington, DC 20375 USA.
RP McCracken, JM (reprint author), US Naval Res Lab, Code 5540, Washington, DC 20375 USA.
EM james.mccracken@nrl.navy.mil
NR 23
TC 3
Z9 3
U1 0
U2 4
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 AUG 5
PY 2013
VL 88
IS 2
AR 022103
DI 10.1103/PhysRevA.88.022103
PG 6
WC Optics; Physics, Atomic, Molecular & Chemical
SC Optics; Physics
GA 196RX
UT WOS:000322794800002
ER
PT J
AU Chamala, RR
Parrish, D
Pradhan, P
Lakshman, MK
AF Chamala, Raghu Ram
Parrish, Damon
Pradhan, Padmanava
Lakshman, Mahesh K.
TI Purinyl N1-Directed Aromatic C-H Oxidation in 6-Arylpurines and
6-Arylpurine Nucleosides
SO JOURNAL OF ORGANIC CHEMISTRY
LA English
DT Article
ID CARBON-HYDROGEN BONDS; FORMING REDUCTIVE ELIMINATION; CATALYZED DIRECT
ARYLATION; CROSS-COUPLING REACTIONS; PALLADIUM(IV) COMPLEXES;
MECHANISTIC INSIGHTS; PD(III) COMPLEXES; ORGANIC-SYNTHESIS;
FUNCTIONALIZATION; ACTIVATION
AB Palladium-catalyzed C-H bond activation and oxidation of C6 arylpurines as well as C6 arylpurine nucleosides can be accomplished using Pd(OAc)(2)/PhI(OAc)(2) in CH3CN. Despite the presence of four nitrogen atoms in the purine moiety as well as the polyoxygenated saccharide and a labile glycosidic bond in the nucleosides, these reactions can be effectively conducted. Notably, the generally more labile 2'-deoxyribonucleosides also undergo reaction. The reaction conditions can be tuned to yield either monoacetoxylated or diacetoxylated products predominantly. In the course of these investigations, a dimeric Pe(II)-containing cyclopalladated C6 naphthylpurine derivative has been obtained and crystallographically characterized. This compound is competent in catalyzing the oxidization with PhI(OAc)(2), indicating its plausible intermediacy in the chemistry. The X-ray structure of a monoacetoxylated product from this reaction has also been obtained.
C1 [Chamala, Raghu Ram; Pradhan, Padmanava; Lakshman, Mahesh K.] CUNY City Coll, Dept Chem, New York, NY 10031 USA.
[Chamala, Raghu Ram; Pradhan, Padmanava; Lakshman, Mahesh K.] CUNY, New York, NY 10031 USA.
[Parrish, Damon] Naval Res Lab, Washington, DC 20375 USA.
RP Lakshman, MK (reprint author), CUNY City Coll, Dept Chem, 160 Convent Ave, New York, NY 10031 USA.
EM lakshman@sci.ccny.cuny.edu
FU National Institutes of Health from the National Center for Research
Resources [2G12RR03060-26A1]; National Institute on Minority Health and
Health Disparities [8G12MD007603-27]; NSF [CHE-1265687, CHE-0741793]
FX Infrastructural support at CCNY was provided by National Institutes of
Health Grant 2G12RR03060-26A1 from the National Center for Research
Resources and by 8G12MD007603-27 from the National Institute on Minority
Health and Health Disparities. This work was partially supported by NSF
Grant CHE-1265687. We thank Ms. Nonka Sevova and Dr. Bill Boggess
(University of Notre Dame Mass Spectrometry and Proteomics Facility) for
some of the HRMS analyses reported herein, the acquisition of which was
supported by NSF Grant CHE-0741793. Dr. R. Pratap, Dr. A. Deb, and Ms.
O. Liu are thanked for some preliminary experiments.
NR 74
TC 20
Z9 20
U1 0
U2 33
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0022-3263
EI 1520-6904
J9 J ORG CHEM
JI J. Org. Chem.
PD AUG 2
PY 2013
VL 78
IS 15
BP 7423
EP 7435
DI 10.1021/jo4008282
PG 13
WC Chemistry, Organic
SC Chemistry
GA 197LQ
UT WOS:000322853100006
PM 23844876
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.
De la Barca Sanchez, M. Calderon
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.
de Toledo, A. Szanto
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 Measurement of J/psi Azimuthal Anisotropy in Au plus Au Collisions at
root s(NN)=200 GeV
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID HEAVY-ION COLLISIONS; QUARK COALESCENCE; STAR; MODELS; FLOW
AB The measurement of J/psi azimuthal anisotropy is presented as a function of transverse momentum for different centralities in Au + Au collisions at root s(NN) = 200 GeV. The measured J/psi elliptic flow is consistent with zero within errors for transverse momentum between 2 and 10 GeV/c. Our measurement suggests that J/psi particles with relatively large transverse momenta are not dominantly produced by coalescence from thermalized charm quarks, when comparing to model calculations.
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.; De la Barca Sanchez, M. Calderon; 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.; Yang, Y.; 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, Fac Nucl Sci & Phys Engn, CR-11519 Prague, Czech Republic.
[Barnovska, Z.; Bielcikova, J.; Chung, P.; Kapitan, J.; Rusnak, J.; Sumbera, M.; Tlusty, D.] Nucl Phys Inst 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.; 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.; Stevens, J. R.; Van Nieuwenhuizen, G.] MIT, Cambridge, MA 02139 USA.
[Schmitz, N.; Seyboth, P.] Max Planck Inst Phys & Astrophys, 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.; 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.; de Toledo, A. Szanto] 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.; 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.
[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.] US Naval 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 Lednicky, Richard/K-4164-2013; Alekseev, Igor/J-8070-2014; Takahashi,
Jun/B-2946-2012; Sumbera, Michal/O-7497-2014; Strikhanov,
Mikhail/P-7393-2014; XIAO, Zhigang/C-3788-2015; Tang, Zebo/A-9939-2014;
Fazio, Salvatore /G-5156-2010; Yang, Yanyun/B-9485-2014; Rusnak,
Jan/G-8462-2014; Bielcikova, Jana/G-9342-2014; Xu, Wenqin/H-7553-2014;
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
OI Alekseev, Igor/0000-0003-3358-9635; Takahashi, Jun/0000-0002-4091-1779;
Sumbera, Michal/0000-0002-0639-7323; Strikhanov,
Mikhail/0000-0003-2586-0405; Tang, Zebo/0000-0002-4247-0081; Yang,
Yanyun/0000-0002-5982-1706; 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; Yi,
Li/0000-0002-7512-2657; Okorokov, Vitaly/0000-0002-7162-5345; Ma,
Yu-Gang/0000-0002-0233-9900
FU Office of NP within the U.S. DOE Office of Science; Office of HEP within
the U.S. DOE Office of Science; U.S. NSF; Sloan Foundation; CNRS/IN2P3;
FAPESP CNPq of Brazil; Ministry of Education and Science of the Russian
Federation; NNSFC; CAS; MoST; MoE of China; GA of Czech Republic; FOM of
Netherlands; NWO of the Netherlands; DAE; DST; 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; RHIC Operations Group; RCF at
BNL; NERSC Center at LBNL; Open Science Grid consortium; MSMT of Czech
Republic
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 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 34
TC 17
Z9 17
U1 0
U2 50
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 AUG 2
PY 2013
VL 111
IS 5
AR 052301
DI 10.1103/PhysRevLett.111.052301
PG 7
WC Physics, Multidisciplinary
SC Physics
GA 196MM
UT WOS:000322779700006
PM 23952389
ER
PT J
AU Ward, WH
Puttler, KM
Lucha, PA
AF Ward, William H.
Puttler, Krista M.
Lucha, Paul A.
TI Clostridium difficile Colitis: Is Severity Increased with Previous
Appendectomy?
SO AMERICAN SURGEON
LA English
DT Article
ID APPENDIX
C1 [Ward, William H.; Puttler, Krista M.; Lucha, Paul A.] Naval Med Ctr Portsmouth, Dept Surg, Portsmouth, VA 23708 USA.
RP Ward, WH (reprint author), Naval Med Ctr Portsmouth, Dept Surg, 620 John Paul Jones Circle, Portsmouth, VA 23708 USA.
EM william.ward@med.navy.mil
NR 4
TC 0
Z9 0
U1 0
U2 1
PU SOUTHEASTERN SURGICAL CONGRESS
PI CUMMING
PA 115 SAMARITAN DR, #200, CUMMING, GA 30040-2354 USA
SN 0003-1348
EI 1555-9823
J9 AM SURGEON
JI Am. Surg.
PD AUG
PY 2013
VL 79
IS 8
BP E258
EP E259
PG 2
WC Surgery
SC Surgery
GA AI6EJ
UT WOS:000336963300001
PM 23896227
ER
PT J
AU Rose, PS
Swanson, RL
AF Rose, Paula S.
Swanson, R. Lawrence
TI IODINE-131 IN SEWAGE SLUDGE FROM A SMALL WATER POLLUTION CONTROL PLANT
SERVING A THYROID CANCER TREATMENT FACILITY
SO HEALTH PHYSICS
LA English
DT Article
DE I-131; iodine; sewage sludge; gamma radiation; medical radiation;
radiopharmaceuticals
ID MEDICALLY USED RADIONUCLIDES; MUNICIPAL SEWAGE; NEW-YORK; ALGAE;
RADIOACTIVITY; ENVIRONMENT; RADIOIODINE; DEPOSITION; CARCINOMA; THERAPY
AB Iodine-131 (half-life = 8.04 d) is the most widely used radionuclide in medicine for therapeutic purposes. It is excreted by patients and is discharged directly to sewer systems. Despite considerable dilution in waste water and the relatively short half-life of I-131, it is readily measured in sewage. This work presents I-131 concentrations in sewage sludge from three water pollution control plants (WPCPs) on Long Island, NY. Iodine-131 concentrations ranged from 0.027 +/- 0.002 to 148 +/- 4 Bq g(-1) dry weight. The highest concentrations were measured in the Stony Brook WPCP, a relatively small plant (average flow = 6.8 x 10(6) L d(-1)) serving a regional thyroid cancer treatment facility in Stony Brook, NY. Preliminary radiation dose calculations suggested further evaluation of dose to treatment plant workers in the Stony Brook WPCP based on the recommendations of the Interagency Steering Committee on Radiation Standards.
C1 [Rose, Paula S.; Swanson, R. Lawrence] SUNY Stony Brook, Marine Sci Res Ctr, Sch Marine & Atmospher Sci, Stony Brook, NY 11794 USA.
RP Rose, PS (reprint author), US Naval Res Lab, Code 6114,4555 Overlook Ave SW, Washington, DC 20375 USA.
EM paula.rose.ctr@nrl.navy.mil
NR 44
TC 1
Z9 1
U1 1
U2 9
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0017-9078
EI 1538-5159
J9 HEALTH PHYS
JI Health Phys.
PD AUG
PY 2013
VL 105
IS 2
BP 115
EP 120
DI 10.1097/HP.0b013e31828459ef
PG 6
WC Environmental Sciences; Public, Environmental & Occupational Health;
Nuclear Science & Technology; Radiology, Nuclear Medicine & Medical
Imaging
SC Environmental Sciences & Ecology; Public, Environmental & Occupational
Health; Nuclear Science & Technology; Radiology, Nuclear Medicine &
Medical Imaging
GA 299AT
UT WOS:000330367400001
PM 23799495
ER
PT J
AU Apodaca, A
Olson, CM
Bailey, J
Butler, F
Eastridge, BJ
Kuncir, E
AF Apodaca, Amy
Olson, Chris M., Jr.
Bailey, Jeffrey
Butler, Frank
Eastridge, Brian J.
Kuncir, Eric
TI Performance improvement evaluation of forward aeromedical evacuation
platforms in Operation Enduring Freedom
SO JOURNAL OF TRAUMA AND ACUTE CARE SURGERY
LA English
DT Article; Proceedings Paper
CT Military Health Systems Research Symposium (MHSRS)
CY AUG 13-16, 2012
CL Fort Lauderdale, FL
DE Medical evacuation (MEDEVAC); en route care; combat trauma
ID TRAUMA; CARE; BATTLEFIELD; TRISS; SCORE; DEATH
AB BACKGROUND: The following three helicopter-based medical evacuation platforms operate in Southern Afghanistan: the US Army emergency medical technician (basic)-led DUSTOFF, US Air Force paramedic-led PEDRO, and UK physician-led medical emergency response team (MERT). Nearly 90% of battlefield deaths occur in the prehospital phase, comparative outcomes for these en route care platforms are unknown. The objective of this investigation was to characterize the nature of injuries in patients transported by three evacuation platforms. In addition, it aimed to compare observed versus predicted mortality among these provider groups.
METHODS: A performance improvement study involving 975 coalition patients injured in Southern Afghanistan, transported from the point of injury to a military hospital, was performed. All patients were alive on admission with prehospital documentation recorded in the US Department of Defense Trauma Registry from June 2009 to June 2011. The main outcome measure was in-hospital mortality and observed versus predicted (Trauma and Injury Severity Score [TRISS]) survival were the primary end points.
RESULTS: MERT transported more amputation and polytrauma casualties and included patients with higher mean Injury Severity Score (ISS) compared with PEDRO and DUSTOFF (16 [13] vs. 11 [10] and 10 [10] respectively; p < 0.001). DUSTOFF was excluded from the subgroup analysis owing to insufficient numbers of severely injured casualties with only one death. The overall mortality for MERT and PEDRO was similar (4.2% vs. 4.6%, p = 0.967). Stratifying by ISS, there was lower mortality in MERT compared with PEDRO in the range of 20 to 29 (4.8% vs. 16.2%, p = 0.021). The observed mortality among PEDRO casualties was as predicted with the exception of the range of 20 to 29, while mortality in MERT was lower than predicted for all ISS groups with greater than 10.
CONCLUSION: MERT achieves greater than predicted survival, which may be related to the additional capabilities onboard. This supports the adoption of a versatile medical evacuation system with scalable crew and equipment configurations that adapt to meet the medical, tactical, and operational needs of future conflicts. Copyright (C) 2013 by Lippincott Williams & Wilkins
C1 [Apodaca, Amy; Bailey, Jeffrey; Butler, Frank; Eastridge, Brian J.] US Army Inst Surg Res, San Antonio, TX 78234 USA.
[Olson, Chris M., Jr.] Naval Res Lab, Stennis Space Ctr, MS USA.
[Kuncir, Eric] Naval Med Ctr San Diego, Dept Surg, San Diego, CA USA.
RP Bailey, J (reprint author), US Army Inst Surg Res, San Antonio, TX 78234 USA.
EM jeffrey.a.bailey3@amedd.army.mil
NR 17
TC 18
Z9 18
U1 0
U2 7
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 2163-0755
EI 2163-0763
J9 J TRAUMA ACUTE CARE
JI J. Trauma Acute Care Surg.
PD AUG
PY 2013
VL 75
SU 2
BP S157
EP S163
DI 10.1097/TA.0b013e318299da3e
PG 7
WC Critical Care Medicine; Surgery
SC General & Internal Medicine; Surgery
GA 300JV
UT WOS:000330461100012
PM 23883901
ER
PT J
AU Melcer, T
Sechriest, VF
Walker, J
Galarneau, M
AF Melcer, Ted
Sechriest, Vernon Franklin
Walker, Jay
Galarneau, Michael
TI A comparison of health outcomes for combat amputee and limb salvage
patients injured in Iraq and Afghanistan wars
SO JOURNAL OF TRAUMA AND ACUTE CARE SURGERY
LA English
DT Article
DE Combat amputee; limb salvage; health outcomes; Iraq/Afghanistan war
ID OPEN TIBIA FRACTURES; CURRENT CONFLICTS; HETEROTOPIC OSSIFICATION;
MILITARY PERSONNEL; EXTREMITY INJURIES; SEVERITY SCORE; RISK-FACTORS;
TRAUMA; AMPUTATION; PREVALENCE
AB BACKGROUND: Treatment of military combatants who sustain leg-threatening injuries remains one of the leading challenges for military providers. The present study provides systematic health outcome data to inform decisions on the definitive surgical treatment, namely amputation versus limb salvage, for the most serious leg injuries.
METHODS: This was a retrospective analysis of health records for patients who sustained serious lower-extremity injuries in the Iraq and Afghanistan conflicts, 2001 to 2008. Patients had (1) amputation during the first 90 days after injury (early amputees, n = 587), (2) amputation more than 90 days after injury (late amputees, n = 84), or (3) leg-threatening injuries without amputation (limb salvage [LS], n = 117). Injury data and health outcomes were followed up to 24 months.
RESULTS: After adjusting for group differences, early amputees and LS patients had similar rates for most physical complications. Early amputees had significantly reduced rates of psychological diagnoses (posttraumatic stress disorder, substance abuse) and received more outpatient care, particularly psychological, compared with LS patients. Late amputees had significantly higher rates of many mental and physical health diagnoses, including prolonged infections and pain issues, compared with early amputees or LS patients.
CONCLUSION: Early amputation was associated with reduced rates of adverse health outcomes relative to late amputation or LS in the short term. Most evident was that late amputees had the poorest physical and psychological outcomes. These findings can inform health care providers of the differing clinical consequences of early amputation and LS. These results indicate the need for separate health care pathways for early and late amputees and LS patients. (J Trauma Acute Care Surg. 2013; 75: S247YS254. Copyright (C) 2013 by Lippincott Williams & Wilkins)
C1 [Melcer, Ted; Walker, Jay; Galarneau, Michael] Naval Hlth Res Ctr, Med Modeling Simulat & Mission Support Dept, San Diego, CA 92106 USA.
[Sechriest, Vernon Franklin] Orthoped Med Grp San Diego, San Diego, CA USA.
RP Melcer, T (reprint author), Naval Hlth Res Ctr, Med Modeling Simulat & Mission Support Dept, 140 Sylvester Rd, San Diego, CA 92106 USA.
EM ted.melcer@med.navy.mil
FU Bureau of Medicine Wounded, Ill, and Injured Program [61110]
FX This represents report 12-43 supported by The Bureau of Medicine
Wounded, Ill, and Injured Program, under work unit no. 61110. The views
expressed in this article are those of the authors and do not reflect
the official policy or position of the Department of the Navy,
Department of Defense, or the US Government. Approved for public
release; distribution is unlimited. This research was conducted in
compliance with all applicable federal regulations governing the
protection of human subjects (NHRC IRB protocol 2007.0016).
NR 37
TC 20
Z9 20
U1 0
U2 8
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 2163-0755
EI 2163-0763
J9 J TRAUMA ACUTE CARE
JI J. Trauma Acute Care Surg.
PD AUG
PY 2013
VL 75
SU 2
BP S247
EP S254
DI 10.1097/TA.0b013e318299d95e
PG 8
WC Critical Care Medicine; Surgery
SC General & Internal Medicine; Surgery
GA 300JV
UT WOS:000330461100027
PM 23883916
ER
PT J
AU Olson, CM
Bailey, J
Mabry, R
Rush, S
Morrison, JJ
Kuncir, EJ
AF Olson, Chris M., Jr.
Bailey, Jeffrey
Mabry, Robert
Rush, Stephen
Morrison, Jonathan J.
Kuncir, Eric J.
TI Forward aeromedical evacuation: A brief history, lessons learned from
the Global War on Terror, and the way forward for US policy
SO JOURNAL OF TRAUMA AND ACUTE CARE SURGERY
LA English
DT Review
ID BLUNT TRAUMA; CARE; BATTLEFIELD; PHYSICIAN; IMPACT; DEATH
C1 [Olson, Chris M., Jr.] Naval Res Lab, Stennis Space Ctr, MS USA.
[Bailey, Jeffrey; Morrison, Jonathan J.] US Army Inst Surg Res, San Antonio, TX USA.
[Mabry, Robert] San Antonio Mil Med Ctr, San Antonio, TX USA.
[Rush, Stephen] USAF Pararescue, Westhampton Beach, NY USA.
[Kuncir, Eric J.] Naval Med Ctr, Dept Surg, San Diego, CA USA.
[Morrison, Jonathan J.] Royal Ctr Def Med, Acad Dept Mil Surg & Trauma, Birmingham, W Midlands, England.
RP Kuncir, EJ (reprint author), Naval Med Ctr San Diego, Dept Surg, 34800 Bob Wilson Dr, San Diego, CA 92134 USA.
EM eric.kuncir@med.navy.mil
OI Morrison, Jonathan/0000-0001-7462-8456
FU United States Army Institute of Surgical Research (USAISR)
FX All authors have completed and submitted the ICMJE Form for Disclosure
of Potential Conflicts of Interest. There were no conflicts reported.
There was no funding for this study. The United States Army Institute of
Surgical Research (USAISR) supported this project. All authors are
employed by the US Department of Defense.
NR 28
TC 7
Z9 7
U1 1
U2 3
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 2163-0755
EI 2163-0763
J9 J TRAUMA ACUTE CARE
JI J. Trauma Acute Care Surg.
PD AUG
PY 2013
VL 75
SU 2
BP S130
EP S136
DI 10.1097/TA.0b013e318299d189
PG 7
WC Critical Care Medicine; Surgery
SC General & Internal Medicine; Surgery
GA 300JV
UT WOS:000330461100007
PM 23883897
ER
PT J
AU Allard, JE
Lee, RU
AF Allard, Jay E.
Lee, Rachel U.
TI Idiopathic CD4 Lymphocytopenia Manifesting as Refractory Genital
Dysplasia
SO OBSTETRICS AND GYNECOLOGY
LA English
DT Article
AB BACKGROUND: Idiopathic CD4 lymphocytopenia is an immunodeficiency disorder with low absolute CD4 T-lymphocyte count with no evidence of human immunodeficiency virus or other known cause.
CASE: A 22-year-old woman presented with a high-grade Pap test result. Work-up demonstrated cervical intraepithelial neoplasia 3 and vaginal intraepithelial neoplasia 3 with extensive condyloma. She presented 6 months after her initial treatment with recurrent disease and was referred to the immunology department, where she was found to have profound lymphopenia. After further evaluation, idiopathic CD4 lymphocytopenia was diagnosed.
CONCLUSION: Idiopathic CD4 lymphocytopenia is a rare acquired immunodeficiency. Although genital dysplasia is common in young women, this case demonstrates the importance of determining other etiologies of recurrent human papillomavirus infections and possible immunodeficiencies that may affect management and outcomes.
C1 Naval Med Ctr, Dept Obstet & Gynecol, Portsmouth, VA USA.
Naval Med Ctr, Dept Internal Med, Div Allergy & Immunol, Portsmouth, VA USA.
[Lee, Rachel U.] Naval Hlth Res Ctr, San Diego, CA 92106 USA.
RP Lee, RU (reprint author), Naval Hlth Res Ctr, Code 166,140 Sylvester Rd, San Diego, CA 92106 USA.
EM Rachel.Lee@med.navy.mil
NR 7
TC 2
Z9 2
U1 0
U2 0
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0029-7844
EI 1873-233X
J9 OBSTET GYNECOL
JI Obstet. Gynecol.
PD AUG
PY 2013
VL 122
IS 2
BP 455
EP 458
DI 10.1097/AOG.0b013e3182835850
PN 2
PG 4
WC Obstetrics & Gynecology
SC Obstetrics & Gynecology
GA 300JK
UT WOS:000330460000009
PM 23884258
ER
PT J
AU Xu, YM
Li, T
Peng, M
AF Xu, Yamei
Li, Tim
Peng, Melinda
TI Tropical Cyclogenesis in the Western North Pacific as Revealed by the
2008-09 YOTC Data
SO WEATHER AND FORECASTING
LA English
DT Article
ID SYNOPTIC-SCALE DISTURBANCES; MADDEN-JULIAN OSCILLATION; SEASON TYPHOON
DEVELOPMENT; UPPER-TROPOSPHERIC TROUGH; WAVE ENERGY DISPERSION; PART I;
CYCLONE FORMATION; ROSSBY WAVES; INTRASEASONAL OSCILLATIONS; PREEXISTING
TYPHOON
AB The Year of Tropical Convection (YOTC) high-resolution global reanalysis dataset was analyzed to reveal precursor synoptic-scale disturbances related to tropical cyclone (TC) genesis in the western North Pacific (WNP) during the 2008-09 typhoon seasons. A time filtering is applied to the data to isolate synoptic (3-10 day), quasi-biweekly (10-20 day), and intraseasonal (20-90 day) time-scale components. The results show that four types of precursor synoptic disturbances associated with TC genesis can be identified in the YOTC data. They are 1) Rossby wave trains associated with preexisting TC energy dispersion (TCED) (24%), 2) synoptic wave trains (SWTs) unrelated to TCED(32%), 3) easterly waves (EWs) (16%), and 4) a combinationof either TCED-EW or SWT-EW (24%). The percentage of identifiable genesis events is higher than has been found in previous analyses.
Most of the genesis events occurred when atmospheric quasi-biweekly and intraseasonal oscillations are in an active phase, suggesting a large-scale control of low-frequency oscillations on TC formation in the WNP. For genesis events associated with SWT and EW, maximum vorticity was confined in the lower troposphere. During the formation of Jangmi (2008), maximum Rossby wave energy dispersion appeared in the middle troposphere. This differs from other TCED cases in which energy dispersion is strongest at low level. As a result, the midlevel vortex from Rossby wave energy dispersion grew faster during the initial development stage of Jangmi.
C1 [Xu, Yamei] Zhejiang Univ, Dept Geosci, Hangzhou 310003, Zhejiang, Peoples R China.
[Xu, Yamei; Li, Tim] Univ Hawaii Manoa, IPRC, Honolulu, HI 96822 USA.
[Xu, Yamei; Li, Tim] Univ Hawaii Manoa, Dept Meteorol, Honolulu, HI 96822 USA.
[Li, Tim] Nanjing Univ Informat Sci & Technol, Key Lab Meteorol Disaster, Nanjing, Jiangsu, Peoples R China.
[Li, Tim] Nanjing Univ Informat Sci & Technol, Coll Atmospher Sci, Nanjing, Jiangsu, Peoples R China.
[Peng, Melinda] Naval Res Lab, Monterey, CA USA.
RP Li, T (reprint author), Univ Hawaii Manoa, IPRC, Honolulu, HI 96822 USA.
EM timli@hawaii.edu
FU ONR [N00014-0810256]; International Pacific Research Center; Japan
Agency for Marine-Earth Science and Technology (JAMSTEC); NASA
[NNX07AG53G]; NOAA [NA17RJ1230]; National Natural Science Foundation of
China [40675026]; National Basic Research Program of China
[2009CB421504]
FX Comments from three anonymous reviewers are greatly appreciated. This
study was supported by ONR Grant N00014-0810256 and by the International
Pacific Research Center that is sponsored by the Japan Agency for
Marine-Earth Science and Technology (JAMSTEC), NASA (NNX07AG53G), and
NOAA (NA17RJ1230). YX was also supported by the National Natural Science
Foundation of China under Grant 40675026 and the National Basic Research
Program of China under Grant 2009CB421504.
NR 66
TC 10
Z9 11
U1 0
U2 7
PU AMER METEOROLOGICAL SOC
PI BOSTON
PA 45 BEACON ST, BOSTON, MA 02108-3693 USA
SN 0882-8156
EI 1520-0434
J9 WEATHER FORECAST
JI Weather Forecast.
PD AUG
PY 2013
VL 28
IS 4
BP 1038
EP 1056
DI 10.1175/WAF-D-12-00104.1
PG 19
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 301LB
UT WOS:000330532700007
ER
PT J
AU Nichols, JM
Bucholtz, F
Michalowicz, JV
AF Nichols, Jonathan M.
Bucholtz, Frank
Michalowicz, Joe V.
TI Linearized Transfer Entropy for Continuous Second Order Systems
SO ENTROPY
LA English
DT Article
DE transfer entropy; joint entropy; coupling
ID INFORMATION-TRANSFER; FLOW
AB The transfer entropy has proven a useful measure of coupling among components of a dynamical system. This measure effectively captures the influence of one system component on the transition probabilities (dynamics) of another. The original motivation for the measure was to quantify such relationships among signals collected from a nonlinear system. However, we have found the transfer entropy to also be a useful concept in describing linear coupling among system components. In this work we derive the analytical transfer entropy for the response of coupled, second order linear systems driven with a Gaussian random process. The resulting expression is a function of the auto- and cross-correlation functions associated with the system response for different degrees-of-freedom. We show clearly that the interpretation of the transfer entropy as a measure of "information flow" is not always valid. In fact, in certain instances the "flow" can appear to switch directions simply by altering the degree of linear coupling. A safer way to view the transfer entropy is as a measure of the ability of a given system component to predict the dynamics of another.
C1 [Nichols, Jonathan M.; Bucholtz, Frank; Michalowicz, Joe V.] US Naval Res Lab, Opt Sci Div, Washington, DC 20375 USA.
[Michalowicz, Joe V.] Global Strategies Grp, Crofton, MD 21114 USA.
RP Nichols, JM (reprint author), US Naval Res Lab, Opt Sci Div, Washington, DC 20375 USA.
EM jonathan.nichols@nrl.navy.mil; frank.bucholtz@nrl.navy.mil;
georgiamsa@yahoo.com
FU Naval Research Laboratory
FX The authors would like to thank the Naval Research Laboratory for
providing funding for this work.
NR 23
TC 4
Z9 4
U1 0
U2 0
PU MDPI AG
PI BASEL
PA POSTFACH, CH-4005 BASEL, SWITZERLAND
SN 1099-4300
J9 ENTROPY-SWITZ
JI Entropy
PD AUG
PY 2013
VL 15
IS 8
BP 3186
EP 3204
DI 10.3390/e15083276
PG 19
WC Physics, Multidisciplinary
SC Physics
GA 272LE
UT WOS:000328461300014
ER
PT J
AU Arkes, J
AF Arkes, Jeremy
TI Misses in "Hot Hand" Research
SO JOURNAL OF SPORTS ECONOMICS
LA English
DT Article; Proceedings Paper
CT Western-Economic-Association International Conference (WEAI)
CY JUN 28-JUL 02, 2012
CL San Francisco, CA
SP Westerb Econ Assoc
DE hot hand; NBA; basketball; momentum
ID BASKETBALL MARKET BELIEVE; MUTUAL FUND PERFORMANCE; PERSISTENCE;
MISPERCEPTION; SEQUENCES; EVENTS
AB Until recently, no study has found evidence for the hot hand in the National Basketball Association. Thus, many researchers have claimed that the hot hand and momentum effects are myths. This article presents simulations that demonstrate how the primary methods for estimating the hot hand effect understate the effect and have a low chance of detecting significance and that the infrequency of the hot hand contributes to the understated estimates and the inability of tests to detect significance. These results suggest that recent research showing a small hot hand effect for free throws is indicative of a much larger hot hand effect.
C1 Naval Postgrad Sch, Grad Sch Business & Publ Policy, Monterey, CA 93943 USA.
RP Arkes, J (reprint author), Naval Postgrad Sch, Grad Sch Business & Publ Policy, Monterey, CA 93943 USA.
EM jaarkes@nps.edu
NR 26
TC 7
Z9 7
U1 3
U2 14
PU SAGE PUBLICATIONS INC
PI THOUSAND OAKS
PA 2455 TELLER RD, THOUSAND OAKS, CA 91320 USA
SN 1527-0025
EI 1552-7794
J9 J SPORT ECON
JI J. Sport. Econ.
PD AUG
PY 2013
VL 14
IS 4
SI SI
BP 401
EP 410
DI 10.1177/1527002513496013
PG 10
WC Economics; Hospitality, Leisure, Sport & Tourism
SC Business & Economics; Social Sciences - Other Topics
GA 264SR
UT WOS:000327901300005
ER
PT J
AU Christophersen, M
Phlips, BF
Christodoulides, JA
Woolf, RS
Jackson, LA
AF Christophersen, M.
Phlips, B. F.
Christodoulides, J. A.
Woolf, R. S.
Jackson, L. A.
TI Laser-Machined Tantalum Collimator for Space Applications
SO JOURNAL OF LASER MICRO NANOENGINEERING
LA English
DT Article
DE Laser-micromachining; X-ray collimator; LOFT mission; chemical etching
of tantalum
AB We are developing and prototyping tantalum X-ray collimators for LOFT (Large Observatory For X-ray Timing), a mission proposal selected by ESA as a candidate mission. LOFT is devoted to X-ray timing and designed to investigate the space-time around collapsed objects. The collimator is micro-fabricated in a two-step process: (i) laser-machining of a hole array in Ta and (ii) chemical etching of the hole with the desired porosity (hole vs. bulk volume). The collimator design was studied by Monte Carlo simulation using SWORD (SoftWare for Optimization of Radiation Detectors). The anticipated collimator performance shows 2 orders of magnitude rejection over 2 degrees. The angular response of the collimator was measured with a commercial X-ray diffractor. The prototype collimates over +/-5 degrees.
C1 [Christophersen, M.; Phlips, B. F.; Christodoulides, J. A.; Woolf, R. S.] US Naval Res Lab, Washington, DC 20375 USA.
[Jackson, L. A.] Praxis Inc, Alexandria, VA 22303 USA.
RP Christophersen, M (reprint author), US Naval Res Lab, Code 7654,4555 Overlook Ave SW, Washington, DC 20375 USA.
EM marc.chrisophersen@nrl.navy.mil
RI Christophersen, Marc/B-6795-2008;
OI Woolf, Richard/0000-0003-4859-1711
FU Office of Navy Research (ONR)
FX This work was funded in part by the Office of Navy Research (ONR).
NR 6
TC 1
Z9 1
U1 0
U2 12
PU JAPAN LASER PROCESSING SOC
PI OSAKA
PA OSAKA UNIV, 11-1 MIHOGAOKA, IBARAKI C/O KATAYAMA LAB, JOINING & WELDING
RES INST, OSAKA, 567-0047, JAPAN
SN 1880-0688
J9 J LASER MICRO NANOEN
JI J. Laser Micro Nanoeng.
PD AUG
PY 2013
VL 8
IS 2
BP 183
EP 187
DI 10.2961/jlmn.2013.02.0012
PG 5
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary;
Optics; Physics, Applied
SC Science & Technology - Other Topics; Materials Science; Optics; Physics
GA 267HK
UT WOS:000328087900012
ER
PT J
AU Khan, FH
AF Khan, Feroz Hassan
TI Untitled
SO JOURNAL OF STRATEGIC STUDIES
LA English
DT Editorial Material
C1 Naval Postgrad Sch, Monterey, CA USA.
RP Khan, FH (reprint author), Naval Postgrad Sch, Monterey, CA USA.
NR 5
TC 1
Z9 1
U1 0
U2 1
PU ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXFORDSHIRE, ENGLAND
SN 0140-2390
EI 1743-937X
J9 J STRATEGIC STUD
JI J. Strateg. Stud.
PD AUG 1
PY 2013
VL 36
IS 4
BP 630
EP 634
DI 10.1080/01402390.2013.811167
PG 5
WC International Relations; Political Science
SC International Relations; Government & Law
GA 263WK
UT WOS:000327838500008
ER
PT J
AU Ngo, HT
Ives, RW
Rakvic, RN
Broussard, RP
AF Ngo, Hau T.
Ives, Robert W.
Rakvic, Ryan N.
Broussard, Randy P.
TI Real-time video surveillance on an embedded, programmable platform
SO MICROPROCESSORS AND MICROSYSTEMS
LA English
DT Article
DE Embedded systems; On-chip buffering scheme; Pipeline and parallel
architecture; FPGA-based real-time video processing; Video surveillance;
Object detection
ID FPGA; ARCHITECTURE
AB In this work, a hardware-software co-design is proposed to effectively utilize FPGA resources for a prototype of an automated video surveillance system on a programmable platform. Time-critical steps of a foreground object detection algorithm are designed and implemented in the FPGA's logic elements to maximize parallel processing. Other non time-critical tasks are achieved by executing a high level language program on an embedded Nios-II processor. Custom and parallel processing modules are integrated into the video processing chain by a streaming protocol that aggressively utilizes on-chip memory to increase the throughput of the system. A data forwarding technique is incorporated with an on-chip buffering scheme to reduce computations and resources in the window-based operations. Other data control interfaces are achieved by software drivers that communicate with hardware controllers using Altera's Memory-Mapped protocol. The proposed prototype has demonstrated real-time processing capability that outperforms other implementations. Published by Elsevier B.V.
C1 [Ngo, Hau T.; Ives, Robert W.; Rakvic, Ryan N.] US Naval Acad, Dept Elect & Comp Engn, Annapolis, MD 21402 USA.
[Broussard, Randy P.] US Naval Acad, Weap & Syst Engn Dept, Annapolis, MD 21402 USA.
RP Ngo, HT (reprint author), US Naval Acad, Dept Elect & Comp Engn, Annapolis, MD 21402 USA.
EM ngo@usna.edu; ives@usna.edu; rakvic@usna.edu; broussar@usna.edu
NR 30
TC 3
Z9 3
U1 2
U2 6
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0141-9331
EI 1872-9436
J9 MICROPROCESS MICROSY
JI Microprocess. Microsyst.
PD AUG-OCT
PY 2013
VL 37
IS 6-7
SI SI
BP 562
EP 571
DI 10.1016/j.micpro.2013.06.003
PG 10
WC Computer Science, Hardware & Architecture; Computer Science, Theory &
Methods; Engineering, Electrical & Electronic
SC Computer Science; Engineering
GA 247JV
UT WOS:000326614600005
ER
PT J
AU Lee, Y
Han, DK
Ko, H
AF Lee, Younghyun
Han, David K.
Ko, Hanseok
TI Acoustic Signal Based Abnormal Event Detection in Indoor Environment
using Multiclass Adaboost
SO IEEE TRANSACTIONS ON CONSUMER ELECTRONICS
LA English
DT Article
DE Abnormal event detection; acoustic signal classification; multiclass
Adaboost; context awareness
ID SUPPORT VECTOR MACHINES; CLASSIFICATION; RECOGNITION; ALGORITHMS;
FEATURES
AB This paper addresses the problem of abnormal acoustic event detection in indoor surveillance systems related to safety and security. The proposed concept event detector determines if the acoustic state is either normal or abnormal from accumulated series of acoustic signals using MFCC and deltas coefficients as acoustic feature vectors and a multiclass Adaboost based acoustic context classifier. A novel concept of adopting an exponential criterion and weighted least square solution to boost binary weak classifiers is proposed here for performance and speed improvements over the conventional and prominent GMM based classifiers.(1)
C1 [Lee, Younghyun] Korea Univ, Dept Visual Informat Proc, Seoul 136713, South Korea.
[Han, David K.] Off Naval Res, Arlington, VA 22217 USA.
[Ko, Hanseok] Korea Univ, Sch Elect Engn, Seoul 136713, South Korea.
RP Lee, Y (reprint author), Korea Univ, Dept Visual Informat Proc, Seoul 136713, South Korea.
EM yhlee@ispl.korea.ac.kr; ctmkhan@gmail.com; hsko@korea.ac.kr
FU Seoul RBD Program [WR080951]
FX This research was supported by Seoul R&BD Program (WR080951).
NR 28
TC 2
Z9 4
U1 0
U2 6
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0098-3063
EI 1558-4127
J9 IEEE T CONSUM ELECTR
JI IEEE Trans. Consum. Electron.
PD AUG
PY 2013
VL 59
IS 3
BP 615
EP 622
PG 8
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA 238EM
UT WOS:000325924900024
ER
PT J
AU Harmon, SR
Urick, VJ
Diehl, JF
Williams, KJ
AF Harmon, Sharon R.
Urick, Vincent J.
Diehl, John F.
Williams, Keith J.
TI Tandem Electrooptic Modulation and Interferometric Detection: Theory and
Application
SO IEEE PHOTONICS JOURNAL
LA English
DT Article
DE Analog optics; analog photonics; Mach-Zehnder modulator; Mach-Zehnder
interferometer; microwave filter; instantaneous frequency measurement;
binary fiber optic delay lines; phase error; true-time delay; RF
photonics
AB This paper expands upon the RF photonic theory of electrooptic phase and intensity modulation detection as seen when coupled in tandem with an asymmetric Mach-Zehnder interferometer through the derivation of power transfer functions for such optical-microwave configurations. An inspection of the theory is presented and validated through experimental results. Several applications of a modulation/interferometric architecture are also reviewed, delineating the importance of a valid model for predicting the behavior of similar analog optical systems.
C1 [Harmon, Sharon R.] Sotera Def Solut Inc, Herndon, VA 20171 USA.
[Urick, Vincent J.; Diehl, John F.; Williams, Keith J.] US Naval Res Lab, Washington, DC 20375 USA.
RP Harmon, SR (reprint author), Sotera Def Solut Inc, Herndon, VA 20171 USA.
EM sharon.harmon.ctr@nrl.navy.mil
NR 18
TC 4
Z9 4
U1 0
U2 3
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1943-0655
J9 IEEE PHOTONICS J
JI IEEE Photonics J.
PD AUG
PY 2013
VL 5
IS 4
AR 5501211
DI 10.1109/JPHOT.2013.2271899
PG 11
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA 231HP
UT WOS:000325407400012
ER
PT J
AU Tsai, HC
Elsberry, RL
Jordan, MS
Vitart, F
AF Tsai, Hsiao-Chung
Elsberry, Russell L.
Jordan, Mary S.
Vitart, Frederic
TI Objective verifications and false alarm analyses of western North
Pacific tropical cyclone event forecasts by the ECMWF 32-day ensemble
SO ASIA-PACIFIC JOURNAL OF ATMOSPHERIC SCIENCES
LA English
DT Article
DE Tropical cyclone formation prediction; objective ensemble cyclone track
verification; tropical cyclone false alarm analysis; ECMWF 32-day
ensemble prediction model
ID INTRASEASONAL TIMESCALES; TRACK FORECASTS; PREDICTIONS; SYSTEM
AB An objective tropical cyclone (TC) track analog verification technique has been developed to select all ensemble storm tracks predicted by the ECMWF 32-day ensemble that match the overall Joint Typhoon Warning Center (JTWC) post-season best-tracks. Ensemble storms within specified time and space differences of each JTWC track are first extracted as potential analogs, and four metrics of shortest distance, average distance, distance at formation time, and distance at ending time are calculated. An objective quality measure that assesses the overall track similarity between the potential analogs and each JTWC track is calculated in terms of membership functions for the four track metrics. Weighting factors multiplying these membership functions are adjusted to match with the quality measures for the ECMWF ensemble storm forecasts in a previous subjective evaluation. Objective verifications for the 2009 and 2010 seasons have been summarized in terms of Hits, Misses, False Alarms, and Correct Negatives that no TC would be present in the western North Pacific. The most important result is that the ECMWF ensemble was able to predict nearly all of the TCs in both seasons with only a small number of Misses that generally were short-lived tropical depressions. Good performance in terms of Correct Negatives was achieved during the 2010 season. False alarms are defined to be all ensemble storms that could not be matched any JTWC tracks within the specified thresholds. Evaluations of the characteristics of the false alarms indicate seasonal and geographic biases and that about 50% of the false alarm in the Week 1 forecasts originate from the initial the initial conditions in the model. A minimum of false alarms created in Week 2 forecasts is attributed to the decrease in horizontal resolution in the model that occurs at day 10. A steady and nearly uniform increase in false alarms in the Week 3 and Week 4 forecasts may be attributed to net convective heating in response to persistent environmental forcing in the tropics.
C1 [Tsai, Hsiao-Chung; Elsberry, Russell L.; Jordan, Mary S.] Naval Postgrad Sch, Dept Meteorol, Monterey, CA 93943 USA.
[Vitart, Frederic] European Ctr Medium Range Weather Forecasts, Shinfield Pk, England.
RP Tsai, HC (reprint author), Naval Postgrad Sch, Dept Meteorol, 589 Dyer Rd, Monterey, CA 93943 USA.
EM htsai@nps.edu
FU Marine Meteorology section of the Office of Naval Research; ECMWF
FX Dr. Hsiao-Chung Tsai is a National Research Council post-doctoral
Research Associate. He and co-authors Russell Elsberry and Mary Jordan
are supported with funding from the Marine Meteorology section of the
Office of Naval Research. Dr. Frederic Vitart is supported by the ECMWF.
Mrs. Penny Jones provided excellent manuscript preparation support.
NR 20
TC 8
Z9 8
U1 0
U2 7
PU KOREAN METEOROLOGICAL SOC
PI SEOUL
PA SHINKIL-DONG 508, SIWON BLDG 704, YONGDUNGPO-GU, SEOUL, 150-050, SOUTH
KOREA
SN 1976-7633
J9 ASIA-PAC J ATMOS SCI
JI Asia-Pac. J. Atmos. Sci.
PD AUG
PY 2013
VL 49
IS 4
BP 409
EP 420
DI 10.1007/s13143-013-0038-6
PG 12
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 209EM
UT WOS:000323737100002
ER
PT J
AU Harris, DC
Johnson, LF
Seaver, R
Lewis, T
Turri, G
Bass, M
Zelmon, DE
Haynes, ND
AF Harris, Daniel C.
Johnson, Linda F.
Seaver, Robert
Lewis, Tod
Turri, Giorgio
Bass, Michael
Zelmon, David E.
Haynes, Nicholas D.
TI Optical and thermal properties of spinel with revised (increased)
absorption at 4 to 5 mu m wavelengths and comparison with sapphire
SO OPTICAL ENGINEERING
LA English
DT Article
DE spinel; sapphire; magnesium aluminum spinel; laser calorimetry; infrared
absorption; refractive index; thermal conductivity; thermal expansion;
heat capacity; infrared window design
ID WEIBULL STATISTICAL-ANALYSIS; SYNTHETIC SAPPHIRE; REFRACTIVE-INDEX;
WINDOW MATERIALS; TEMPERATURE; STRENGTH; MGAL2O4; RAY; CALORIMETRY;
COEFFICIENT
AB Infrared absorption of high-quality, commercial, polycrystalline MgAl2O4 spinel is similar to 40% greater in the range of 3.8 to 5.0 mu m than the value predicted by the computer code OPTIMATR (R), which has been used for window and dome design for more than 20 years. As a result, spinel and a-plane sapphire windows designed to support the same external pressure with the same probability of survival have approximately the same infrared absorptance in the range 3.8 to 5.0 mu m. c-Plane sapphire has greater absorptance than spinel in the range 3.8 to 5.0 mu m. Spinel has two weak absorption bands near 1.8 and 3.0 mu m. At 1.064 mu m, the laser calorimetric absorption coefficient of spinel is 10 to 50 times greater than that of sapphire. New measurements of specific heat capacity, thermal expansion, thermal conductivity, elastic constants, and refractive index (including dn/dT) of spinel are reported. (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 [Harris, Daniel C.; Johnson, Linda F.; Seaver, Robert; Lewis, Tod] Naval Air Warfare Ctr, Weap Div, China Lake, CA 93555 USA.
[Turri, Giorgio] Florida Southern Coll, Lakeland, FL 33801 USA.
[Bass, Michael] Univ Cent Florida, CREOL Coll Opt & Photon, Orlando, FL 32816 USA.
[Zelmon, David E.; Haynes, Nicholas D.] US Air Force Res Lab, Wright Patterson AFB, OH 45433 USA.
RP Harris, DC (reprint author), Naval Air Warfare Ctr, Weap Div, 1900 N Knox Rd Stop 6303, China Lake, CA 93555 USA.
EM Daniel.Harris@navy.mil
NR 57
TC 5
Z9 6
U1 3
U2 21
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 AUG
PY 2013
VL 52
IS 8
AR 087113
DI 10.1117/1.OE.52.8.087113
PG 12
WC Optics
SC Optics
GA 216NP
UT WOS:000324290900050
ER
PT J
AU Eskridge, SL
Macera, CA
Galarneau, MR
Holbrook, TL
Woodruff, SI
MacGregor, AJ
Morton, DJ
Shaffer, RA
AF Eskridge, Susan L.
Macera, Caroline A.
Galarneau, Michael R.
Holbrook, Troy L.
Woodruff, Susan I.
MacGregor, Andrew J.
Morton, Deborah J.
Shaffer, Richard A.
TI Influence of Combat Blast-Related Mild Traumatic Brain Injury Acute
Symptoms on Mental Health and Service Discharge Outcomes
SO JOURNAL OF NEUROTRAUMA
LA English
DT Article
DE combat blast injury; functional outcomes; mental health; traumatic brain
injury
ID POSTTRAUMATIC-STRESS-DISORDER; PROFESSIONAL FOOTBALL PLAYERS; RECURRENT
CONCUSSION; US SOLDIERS; IRAQ; PREDICTORS; REGISTRY; RISK
AB Assessment of acute mild traumatic brain injury (mTBI) symptoms after a combat blast could aid diagnosis and guide follow-up care. Our objective was to document acute mTBI symptoms following a combat blast and to examine associations between acute symptoms and mental health and service discharge outcomes. A retrospective cohort study was conducted with 1656 service personnel who experienced a combat blast-related mTBI in Iraq. Acute mTBI symptoms were ascertained from point-of-injury medical records. The associations between acute symptoms and posttraumatic stress disorder (PTSD), postconcussion syndrome (PCS), and type of service discharge were examined. Disability discharge occurred in 11% of patients, while 36% had a non-disability discharge and 52% had no recorded discharge. A PTSD and PCS diagnosis was made in 19% and 15% of the sample, respectively. The most common acute mTBI symptoms were headache (62.8%), loss of consciousness (LOC) (34.5%), and tinnitus (33.2%). LOC was predictive of PTSD (odds ratio [OR] 1.54; 95% confidence interval [CI] 1.18, 2.00) and PCS (OR 2.08; 95% CI 1.56, 2.77), while altered mental status (OR 1.53; 95% CI 1.07, 2.17) and previous blast history (OR 1.83; 95% CI 1.15, 2.90) also were predictive of PCS. While no acute mTBI symptoms were associated with discharge outcomes, injury severity was associated with disability discharge. LOC after blast-related mTBI was associated with PTSD and PCS, and injury severity was predictive of disability discharge. The assessment of cognitive status immediately after a blast could assist in diagnosing mTBI and indicate a need for follow-up care.
C1 [Eskridge, Susan L.; Galarneau, Michael R.; MacGregor, Andrew J.] Naval Hlth Res Ctr, Dept Med Modeling Simulat & Mission Support, San Diego, CA 92106 USA.
[Macera, Caroline A.; Shaffer, Richard A.] Naval Hlth Res Ctr, Dept Def, HIV AIDS Prevent Program, San Diego, CA 92106 USA.
[Macera, Caroline A.; Shaffer, Richard A.] San Diego State Univ, Grad Sch Publ Hlth, San Diego, CA 92182 USA.
[Holbrook, Troy L.] San Diego State Univ, Sch Social Work, San Diego, CA 92182 USA.
[Woodruff, Susan I.] EPI SOAR Consulting Inc, San Diego, CA USA.
[Morton, Deborah J.] Univ Calif San Diego, Dept Family & Prevent Med, San Diego, CA 92103 USA.
RP Eskridge, SL (reprint author), Naval Hlth Res Ctr, Dept Med Modeling Simulat & Mission Support, 140 Sylvester Rd, San Diego, CA 92106 USA.
EM susan.eskridge@med.navy.mil
FU U.S. Navy Bureau of Medicine and Surgery [60808]
FX This work was supported by the U.S. Navy Bureau of Medicine and Surgery
under the Wounded, Ill, and Injured/Psychological Health/Traumatic Brain
Injury Program under work unit 60808. The views expressed in this
article are those of the authors and do not reflect the official policy
or position of the Department of the Navy, the 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. 2009.0023).
NR 29
TC 13
Z9 13
U1 4
U2 11
PU MARY ANN LIEBERT, INC
PI NEW ROCHELLE
PA 140 HUGUENOT STREET, 3RD FL, NEW ROCHELLE, NY 10801 USA
SN 0897-7151
J9 J NEUROTRAUM
JI J. Neurotrauma
PD AUG
PY 2013
VL 30
IS 16
BP 1391
EP 1397
DI 10.1089/neu.2012.2537
PG 7
WC Critical Care Medicine; Clinical Neurology; Neurosciences
SC General & Internal Medicine; Neurosciences & Neurology
GA 199JB
UT WOS:000322989500002
PM 23489170
ER
PT J
AU Oh, E
Du, SW
AF Oh, Eun
Du, Shengwang
TI Manipulating cold atoms with off-axis rotating traps
SO JOURNAL OF THE KOREAN PHYSICAL SOCIETY
LA English
DT Article
DE Cold atom; Rotating trap; Damping force
ID GUIDING NEUTRAL ATOMS; BEAM SPLITTER
AB We investigate classical motions of cold atoms in three types (harmonic, linear, and Gaussian) of off-axis rotating traps in the presence of damping forces. When the radius of rotation of the trap is within the trap volume, the atoms are always attracted towards the rotation's origin if the damping rate I" is larger than the trap frequency omega (i.e., I" > omega). This is opposed to being repelled by the centrifugal force in a rotating reference frame. Contrarily, when the trap's rotation radius is larger than the trap size, the atoms experience a time-averaged ring-shape trap at a high rotational frequency. These anomalous properties can be used to realize high-speed rotation sensors and effective static ring-trap potentials for manipulating cold atoms.
C1 [Oh, Eun] US Naval Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
[Du, Shengwang] Hong Kong Univ Sci & Technol, Dept Phys, Kowloon, Hong Kong, Peoples R China.
RP Oh, E (reprint author), US Naval Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
EM dusw@ust.hk
RI Du, Shengwang/B-4475-2011;
OI Du, Shengwang/0000-0002-7174-4571
FU Office of Naval Research
FX We would like to thank Yeonju Han-Oh, Jinwei Wu, and Frank Moscatelli
for fruitful conversations leading to this derivation. Eun Oh was
supported in part by the Office of Naval Research.
NR 15
TC 0
Z9 0
U1 0
U2 0
PU KOREAN PHYSICAL SOC
PI SEOUL
PA 635-4, YUKSAM-DONG, KANGNAM-KU, SEOUL 135-703, SOUTH KOREA
SN 0374-4884
J9 J KOREAN PHYS SOC
JI J. Korean Phys. Soc.
PD AUG
PY 2013
VL 63
IS 4
SI SI
BP 938
EP 942
DI 10.3938/jkps.63.938
PG 5
WC Physics, Multidisciplinary
SC Physics
GA 214IX
UT WOS:000324127200014
ER
PT J
AU Warusawithana, MP
Richter, C
Mundy, JA
Roy, P
Ludwig, J
Paetel, S
Heeg, T
Pawlicki, AA
Kourkoutis, LF
Zheng, M
Lee, M
Mulcahy, B
Zander, W
Zhu, Y
Schubert, J
Eckstein, JN
Muller, DA
Hellberg, CS
Mannhart, J
Schlom, DG
AF Warusawithana, M. P.
Richter, C.
Mundy, J. A.
Roy, P.
Ludwig, J.
Paetel, S.
Heeg, T.
Pawlicki, A. A.
Kourkoutis, L. F.
Zheng, M.
Lee, M.
Mulcahy, B.
Zander, W.
Zhu, Y.
Schubert, J.
Eckstein, J. N.
Muller, D. A.
Hellberg, C. Stephen
Mannhart, J.
Schlom, D. G.
TI LaAlO3 stoichiometry is key to electron liquid formation at
LaAlO3/SrTiO3 interfaces
SO NATURE COMMUNICATIONS
LA English
DT Article
ID OXIDE HETEROSTRUCTURES; CRYSTAL-SURFACES; SUPERCONDUCTIVITY;
HETEROJUNCTION; COEXISTENCE; FIELD; GAS
AB Emergent phenomena, including superconductivity and magnetism, found in the two-dimensional electron liquid (2-DEL) at the interface between the insulators lanthanum aluminate (LaAlO3) and strontium titanate (SrTiO3) distinguish this rich system from conventional 2D electron gases at compound semiconductor interfaces. The origin of this 2-DEL, however, is highly debated, with focus on the role of defects in the SrTiO3, while the LaAlO3 has been assumed perfect. Here we demonstrate, through experiments and first-principle calculations, that the cation stoichiometry of the nominal LaAlO3 layer is key to 2-DEL formation: only Al-rich LaAlO3 results in a 2-DEL. Although extrinsic defects, including oxygen deficiency, are known to render LaAlO3/SrTiO3 samples conducting, our results show that in the absence of such extrinsic defects an interface 2-DEL can form. Its origin is consistent with an intrinsic electronic reconstruction occurring to counteract a polarization catastrophe. This work provides insight for identifying other interfaces where emergent behaviours await discovery.
C1 [Warusawithana, M. P.; Roy, P.; Ludwig, J.; Pawlicki, A. A.; Lee, M.] Florida State Univ, Dept Phys, Natl High Magnet Field Lab, Tallahassee, FL 32310 USA.
[Richter, C.; Paetel, S.] Univ Augsburg, Ctr Elect Correlat & Magnetism, D-86135 Augsburg, Germany.
[Richter, C.; Mannhart, J.] Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany.
[Mundy, J. A.; Kourkoutis, L. F.; Zhu, Y.; Muller, D. A.] Cornell Univ, Sch Appl & Engn Phys, Ithaca, NY 14853 USA.
[Heeg, T.; Schlom, D. G.] Cornell Univ, Dept Mat Sci & Engn, Ithaca, NY 14853 USA.
[Kourkoutis, L. F.; Muller, D. A.; Schlom, D. G.] Kavli Inst Cornell Nanoscale Sci, Ithaca, NY 14853 USA.
[Zheng, M.; Mulcahy, B.; Eckstein, J. N.] Univ Illinois, Dept Phys, Urbana, IL 61801 USA.
[Zander, W.; Schubert, J.] Res Ctr JuIich, JARA Fundamentals Future Informat, Peter Gruenberg Inst 9, D-52425 Julich, Germany.
[Hellberg, C. Stephen] Naval Res Lab, Ctr Computat Mat Sci, Washington, DC 20375 USA.
RP Warusawithana, MP (reprint author), Florida State Univ, Dept Phys, Natl High Magnet Field Lab, Tallahassee, FL 32310 USA.
EM maitri@magnet.fsu.edu
RI Schlom, Darrell/J-2412-2013; Schubert, Jurgen/K-9543-2013; Zhu,
Ye/A-1844-2011; Richter, Christoph/A-6172-2013; Lee,
Minseong/D-5371-2016;
OI Schlom, Darrell/0000-0003-2493-6113; Schubert,
Jurgen/0000-0003-0185-6794; Zhu, Ye/0000-0002-5217-493X; Richter,
Christoph/0000-0002-6591-1118; Muller, David/0000-0003-4129-0473
FU National Science Foundation [DMR-1157490]; State of Florida; US
Department of Energy; Deutsche Forschungsgemeinschaft [TRR 80]; European
Community (OxIDes); National Science Foundation through the MRSEC
programme [DMR-1120296]; Office of Naval Research through the Naval
Research Laboratory's Basic Research Program; NSF graduate fellowship
[DGE-0707428]; D.O.D. through an NDSEG fellowship; Army Research Office
ARO [W911NF0910415]
FX We acknowledge discussions and interactions with Scott Chambers, Noam
Bernstein, J. Grazul, J. Aarts, J. Brooks and E. J. Kirkland. A portion
of this work was performed at the National High Magnetic Field
Laboratory, which is supported by the National Science Foundation
Cooperative Agreement No. DMR-1157490, the State of Florida, and the US
Department of Energy (M.P.W., P.R., J.L., A.A.P., M.L.). In addition,
the financial support of the Deutsche Forschungsgemeinschaft (TRR 80)
(C.R., S.P., J.M.), European Community (OxIDes) (C.R., S.P., J.M.), the
National Science Foundation through the MRSEC programme (DMR-1120296)
(T.H., L.F.K.), Office of Naval Research through the Naval Research
Laboratory's Basic Research Program (C.S.H.), NSF graduate fellowship
DGE-0707428 (J.A.M.), the D.O.D. through an NDSEG fellowship (J.A.M.)
and Army Research Office ARO #W911NF0910415 (Y.Z., D.A.M., D.G.S.) is
gratefully acknowledged. Computations were performed at the ERDC DoD
Major Shared Resource Center.
NR 40
TC 78
Z9 78
U1 10
U2 180
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 AUG
PY 2013
VL 4
AR 2351
DI 10.1038/ncomms3351
PG 9
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 209JY
UT WOS:000323753200012
PM 23965846
ER
PT J
AU Spillmann, CM
Ancona, MG
Buckhout-White, S
Algar, WR
Stewart, MH
Susumu, K
Huston, AL
Goldman, ER
Medintz, IL
AF Spillmann, Christopher M.
Ancona, Mario G.
Buckhout-White, Susan
Algar, W. Russ
Stewart, Michael H.
Susumu, Kimihiro
Huston, Alan L.
Goldman, Ellen R.
Medintz, Igor L.
TI Achieving Effective Terminal Exciton Delivery in Quantum Dot
Antenna-Sensitized Multistep DNA Photonic Wires
SO ACS NANO
LA English
DT Article
DE semiconductor nanocrystal; quantum dot; sensitization; dye; fluorophore;
photonic wire; antenna; self-assembly; DNA; FRET; nanotechnology; energy
transfer; exciton
ID RESONANCE ENERGY-TRANSFER; LIGHT-HARVESTING ANTENNA; CYANINE DYES;
FLUORESCENCE; NANOSTRUCTURES; SEMICONDUCTOR; ORIGAMI; COMPLEX; DONORS;
NANOTECHNOLOGY
AB Assembling DNA-based photonic wires around semiconductor quantum dots (QDs) creates optically active hybrid architectures that exploit the unique properties of both components. DNA hybridization allows positioning of multiple, carefully arranged fluorophores that can engage in sequential energy transfer steps while the QDs provide a superior energy harvesting antenna,capacity that drives a Forster resonance energy transfer (FRET) cascade through the structures. Although the first generation of these composites demonstrated four sequential energy transfer steps across a distance >150 angstrom, the exciton transfer efficiency reaching the final, terminal dye was estimated to be only similar to 0.7% with no concomitant sensitized emission observed Had the terminal Cy7 dye utilized In that construct provided a sensitized emission, we estimate that this would have equated to an overall end-to-end ET efficiency of <= 0.1%. In this report we demonstrate that overall energy flow through a second generation hybrid architecture can be significantly improved by reengineering four key aspects of the composite structure : (1) making the initial DNA modification chemistry smaller and more facile to implement (2) optimizing donor-acceptor dye pairings, (3) varying donor-acceptor dye spacing as a function of the Forster distance R-o, and (4) increasing the number of DNA wires displayed around each central QD donor. These cumulative changes lead to a 2 orders of magnitude improvement in the exciton transfer efficiency to the final terminal dye in comparison to the first-generation construct. The overall end-to-end efficiency through the optimized, five-fluorophore/four-step cascaded energy transfer system now approaches 10%. The results are analyzed using Forster theory with various sources of randomness accounted for by averaging over ensembles of modeled constructs. Fits to the spectra suggest near-ideal behavior when the photonic wires have two sequential acceptor dyes (Cy3 and Cy3.5) and exciton transfer efficiencies approaching 100% are seen when the dye spacings are 0.5 x R-o. However, as additional dyes are included in each wire, strong nonidealities appear that are suspected to arise predominantly from the poor photophysical performance of the last two acceptor dyes (45 and Cy5.5). The results are discussed in the context of improving exciton transfer efficiency along photonic wires and the contributions these architectures can make to understanding multistep FRET processes.
C1 [Spillmann, Christopher M.; Buckhout-White, Susan; Algar, W. Russ; Goldman, Ellen R.; Medintz, Igor L.] US Naval Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 USA.
[Ancona, Mario G.] US Naval Res Lab, Elect Sci & Technol Div, Washington, DC 20375 USA.
[Stewart, Michael H.; Susumu, Kimihiro; Huston, Alan L.] US Naval Res Lab, Opt Sci Div, Washington, DC 20375 USA.
[Buckhout-White, Susan; Algar, W. Russ] George Mason Univ, Coll Sci, Fairfax, VA 22030 USA.
[Susumu, Kimihiro] Sotera Def Solut, Annapolis Jct, MD 20701 USA.
RP Medintz, IL (reprint author), US Naval Res Lab, Ctr Bio Mol Sci & Engn, Code 6900, Washington, DC 20375 USA.
EM Igor.medintz@nri.navy.mil
FU Office of Naval Research; NRL NSI; DTRA JSTO MIPR [B112582M]; NSERC
FX The authors acknowledge the Office of Naval Research, the NRL NSI, and
DTRA JSTO MIPR No. B112582M for financial support. W.R.A. is grateful to
NSERC for a postdoctoral fellowship.
NR 67
TC 26
Z9 26
U1 11
U2 107
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 AUG
PY 2013
VL 7
IS 8
BP 7101
EP 7118
DI 10.1021/nn402468t
PG 18
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 210DX
UT WOS:000323810600073
PM 23844838
ER
PT J
AU Richardson, AS
Angus, JR
Swanekamp, SB
Ottinger, PF
Schumer, JW
AF Richardson, A. S.
Angus, J. R.
Swanekamp, S. B.
Ottinger, P. F.
Schumer, J. W.
TI Theory and simulations of electron vortices generated by magnetic
pushing
SO PHYSICS OF PLASMAS
LA English
DT Article
ID PLASMA OPENING SWITCH; FIELD PENETRATION; MAGNETOHYDRODYNAMIC
TURBULENCE; INHOMOGENEOUS PLASMAS; COULOMB EXPLOSION; CURRENT FILAMENTS;
HALL FIELD; RECONNECTION; CONDUCTION; TRANSITION
AB Vortex formation and propagation are observed in kinetic particle-in-cell (PIC) simulations of magnetic pushing in the plasma opening switch. These vortices are studied here within the electron-magnetohydrodynamic (EMHD) approximation using detailed analytical modeling. PIC simulations of these vortices have also been performed. Strong v x B forces in the vortices give rise to significant charge separation, which necessitates the use of the EMHD approximation in which ions are fixed and the electrons are treated as a fluid. A semi-analytic model of the vortex structure is derived, and then used as an initial condition for PIC simulations. Density-gradient-dependent vortex propagation is then examined using a series of PIC simulations. It is found that the vortex propagation speed is proportional to the Hall speed nu(Hall) equivalent to cB(0)/4 pi n(e)eL(n). When ions are allowed to move, PIC simulations show that the electric field in the vortex can accelerate plasma ions, which leads to dissipation of the vortex. This electric field contributes to the separation of ion species that has been observed to occur in pulsed-power experiments with a plasma-opening switch. (C) 2013 AIP Publishing LLC.
C1 [Richardson, A. S.; Angus, J. R.; Swanekamp, S. B.; Schumer, J. W.] Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
[Ottinger, P. F.] ENGILITY, Chantilly, VA 20151 USA.
RP Richardson, AS (reprint author), Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
OI Angus, Justin/0000-0003-1474-0002; Richardson,
Andrew/0000-0002-3056-6334
FU Office of Naval Research
FX This work was supported by the Office of Naval Research. The authors
would like to thank V. S. Lukin for his helpful comments.
NR 49
TC 3
Z9 3
U1 2
U2 12
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 1070-664X
EI 1089-7674
J9 PHYS PLASMAS
JI Phys. Plasmas
PD AUG
PY 2013
VL 20
IS 8
AR 082115
DI 10.1063/1.4817746
PG 11
WC Physics, Fluids & Plasmas
SC Physics
GA 211XY
UT WOS:000323946800018
ER
PT J
AU Rodriguez-Barraquer, I
Mier-y-Teran-Romero, L
Burke, DS
Cummings, DAT
AF Rodriguez-Barraquer, Isabel
Mier-y-Teran-Romero, Luis
Burke, Donald S.
Cummings, Derek A. T.
TI Challenges in the Interpretation of Dengue Vaccine Trial Results
SO PLOS NEGLECTED TROPICAL DISEASES
LA English
DT Article
ID INFECTION; CHILDREN
C1 [Rodriguez-Barraquer, Isabel; Cummings, Derek A. T.] Johns Hopkins Univ, Dept Epidemiol, Baltimore, MD 21218 USA.
[Mier-y-Teran-Romero, Luis] US Naval Res Lab, Div Plasma Phys, Nonlinear Syst Dynam Sect, Washington, DC USA.
[Burke, Donald S.] Univ Pittsburgh, Grad Sch Publ Hlth, Pittsburgh, PA USA.
RP Rodriguez-Barraquer, I (reprint author), Johns Hopkins Univ, Dept Epidemiol, Baltimore, MD 21218 USA.
EM dcumming@jhsph.edu
OI /0000-0002-5704-8094
FU Bill & Melinda Gates Foundation Vaccine Modeling Initiative; MIDAS
initiative of the NIH (NIGMS) [U54 GM088491-01]
FX DSB and DATC received funding from the Bill & Melinda Gates Foundation
Vaccine Modeling Initiative. DATC holds a Career Award at the Scientific
Interface. IRB, DSB, and DATC also received funding from the MIDAS
initiative of the NIH (NIGMS, U54 GM088491-01). The funders had no role
in study design, data collection and analysis, decision to publish, or
preparation of the manuscript.
NR 5
TC 14
Z9 14
U1 0
U2 4
PU PUBLIC LIBRARY SCIENCE
PI SAN FRANCISCO
PA 1160 BATTERY STREET, STE 100, SAN FRANCISCO, CA 94111 USA
SN 1935-2735
J9 PLOS NEGLECT TROP D
JI Plos Neglect. Trop. Dis.
PD AUG
PY 2013
VL 7
IS 8
AR e2126
DI 10.1371/journal.pntd.0002126
PG 3
WC Infectious Diseases; Parasitology; Tropical Medicine
SC Infectious Diseases; Parasitology; Tropical Medicine
GA 211WE
UT WOS:000323941500001
PM 24009782
ER
PT J
AU Turowski, M
Bald, T
Raman, A
Fedoseyev, A
Warner, JH
Cress, CD
Walters, RJ
AF Turowski, Marek
Bald, Timothy
Raman, Ashok
Fedoseyev, Alex
Warner, Jeffrey H.
Cress, Cory D.
Walters, Robert J.
TI Simulating the Radiation Response of GaAs Solar Cells Using a
Defect-Based TCAD Model
SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE
LA English
DT Article; Proceedings Paper
CT European Conference on Radiation and its Effects on Components and
Systems (RADECS)
CY SEP 24-28, 2012
CL Biarritz, FRANCE
SP Univ Bordeaux, IMS Labs, RADECS Org, IEEE, Nucl & Plasma Sci Soc (NPSS), French Minist Higher Educ & Res, Conseil Reg Aquitaine, French Natl Ctr Sci Res (CNRS), Univ Bordeaux
DE Carrier transport; deep level transient Fourier spectroscopy (DLTFS);
defects; displacement damage; proton irradiation; radiation response;
TCAD; 3D; traps
ID RECOMBINATION CENTERS; IRRADIATION; DEGRADATION; PROTON; SPECTROSCOPY;
DEPENDENCE; ELECTRON; DAMAGE
AB Three-dimensional TCAD simulations are used for physics-based prediction of space radiation effects in III-V solar cells, and compared with experimentally measured characteristics of a p(+)n GaAs solar cell with AlGaAs window. Dark and illuminated I-V curves as well as corresponding performance parameters are computed and compared with experimental data for 2 MeV proton irradiation at various fluences. We analyze the role of majority and minority carrier traps in the solar cell performance degradation. The traps/defects parameters used in the simulations, for n-type and p-type GaAs, are derived from Deep Level Transient Spectroscopy (DLTS) data. The physics-based models allow a good match between simulation results and experimental data. However, assuming the device performance is dominated by a single recombination center is not adequate to completely capture the degradation mechanisms controlling the photovoltaic performance.
C1 [Turowski, Marek; Bald, Timothy; Raman, Ashok; Fedoseyev, Alex] CFD Res Corp, Huntsville, AL 35805 USA.
[Warner, Jeffrey H.; Cress, Cory D.; Walters, Robert J.] Naval Res Lab, Washington, DC 20375 USA.
RP Turowski, M (reprint author), Robust Chip Inc, Pleasanton, CA 94588 USA.
EM marek.turowski@robustchip.com; tjb@cfdrc.com; ar2@cfdrc.com;
aif@cfdrc.com; jeffrey.warner@nrl.navy.mil; cory.cress@nrl.navy.mil;
robert.walters@nrl.navy.mil
OI Cress, Cory/0000-0001-7563-6693
NR 25
TC 4
Z9 4
U1 2
U2 20
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 AUG
PY 2013
VL 60
IS 4
BP 2477
EP 2485
DI 10.1109/TNS.2013.2273446
PN 1
PG 9
WC Engineering, Electrical & Electronic; Nuclear Science & Technology
SC Engineering; Nuclear Science & Technology
GA 205NJ
UT WOS:000323450700016
ER
PT J
AU Roche, NJH
Buchner, SP
Roig, F
Dusseau, L
Warner, JH
Boch, J
McMorrow, D
Saigne, F
Auriel, G
Azais, B
AF Roche, Nicolas J-H.
Buchner, S. P.
Roig, F.
Dusseau, L.
Warner, J. H.
Boch, J.
McMorrow, D.
Saigne, F.
Auriel, G.
Azais, B.
TI Investigation of Flip-Flop Effects in a Linear Analog
Comparator-With-Hysteresis Circuit
SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE
LA English
DT Article; Proceedings Paper
CT European Conference on Radiation and its Effects on Components and
Systems (RADECS)
CY SEP 24-28, 2012
CL Biarritz, FRANCE
SP Univ Bordeaux, IMS Labs, RADECS Org, IEEE, Nucl & Plasma Sci Soc (NPSS), French Minist Higher Educ & Res, Conseil Reg Aquitaine, French Natl Ctr Sci Res (CNRS), Univ Bordeaux
DE Bipolar circuits; integrated circuit modeling; single event transient;
transient propagation; transient response
ID SINGLE-EVENT TRANSIENTS; LM124 OPERATIONAL-AMPLIFIER; PULSED-LASER;
RADIATION; IMPACT; MODEL
AB The impact of the positive feedback loop on analog single event transient (ASET) shapes was investigated for a comparator-with-hysteresis circuit. Simulation based on previous developed ASET simulation tool is used to model the impact of the power supply voltage, the input voltage level and the injected energy. Simulation results show that these kinds of circuits are sensitive to flip-flop effects. This phenomenon occurs if the input voltage is in the hysteresis band range. In this case, simulations show that the ASET can latch the output into a non-desired state by changing the state of the circuit on his transfer characteristic curves. Laser experiments were conducted and show that the simulation outputs are in agreement with the experimental collected data.
C1 [Roche, Nicolas J-H.; Buchner, S. P.; Warner, J. H.; McMorrow, D.] US Naval Res Lab, Washington, DC 20375 USA.
[Roche, Nicolas J-H.] George Washington Univ, Washington, DC 20052 USA.
[Roche, Nicolas J-H.; Dusseau, L.; Boch, J.; Saigne, F.] Univ Montpellier 2, IES, CNRS, UMR 5214, F-34095 Montpellier 5, France.
[Roig, F.; Auriel, G.] Commissariat Energie Atom & Energies Alternat, CEA, F-46500 Gramat, France.
[Azais, B.] DGA, F-92221 Bagneux, France.
RP Roche, NJH (reprint author), US Naval Res Lab, Washington, DC 20375 USA.
EM nroche@gwu.edu
NR 21
TC 3
Z9 3
U1 0
U2 12
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 AUG
PY 2013
VL 60
IS 4
BP 2542
EP 2549
DI 10.1109/TNS.2013.2258682
PN 1
PG 8
WC Engineering, Electrical & Electronic; Nuclear Science & Technology
SC Engineering; Nuclear Science & Technology
GA 205NJ
UT WOS:000323450700025
ER
PT J
AU Dodds, NA
Hooten, NC
Reed, RA
Schrimpf, RD
Warner, JH
Roche, NJH
McMorrow, D
Buchner, S
Jordan, S
Pellish, JA
Bennett, WG
Gaspard, NJ
King, MP
AF Dodds, N. A.
Hooten, N. C.
Reed, R. A.
Schrimpf, R. D.
Warner, J. H.
Roche, N. J. -H.
McMorrow, D.
Buchner, S.
Jordan, S.
Pellish, J. A.
Bennett, W. G.
Gaspard, N. J.
King, M. P.
TI SEL-Sensitive Area Mapping and the Effects of Reflection and Diffraction
From Metal Lines on Laser SEE Testing
SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE
LA English
DT Article; Proceedings Paper
CT European Conference on Radiation and its Effects on Components and
Systems (RADECS)
CY SEP 24-28, 2012
CL Biarritz, FRANCE
SP Univ Bordeaux, IMS Labs, RADECS Org, IEEE, Nucl & Plasma Sci Soc (NPSS), French Minist Higher Educ & Res, Conseil Reg Aquitaine, French Natl Ctr Sci Res (CNRS), Univ Bordeaux
DE Laser testing; sensitive volume; single-event latchup; single-photon
absorption (SPA); two-photon absorption (TPA)
ID PARTICLE-INDUCED LATCHUP; CMOS TEST STRUCTURES; CHARGE COLLECTION;
2-PHOTON ABSORPTION; CARRIER GENERATION; PULSED-LASER; SINGLE; DEVICES;
TECHNOLOGY
AB Laser and heavy-ion data reveal the areas and shapes of single-event latchup (SEL)-sensitive regions in CMOS test structures and their positions relative to the affected p-n-p-n paths. Contrary to previous two-dimensional studies, this three-dimensional study shows that the position of maximum SEL sensitivity in these structures is not centered on a p-n-p-n region, but between two neighboring p-n-p-n regions, suggesting that synergistic triggering increases SEL sensitivity.
The SEL-sensitivity maps suggest that laser light scattered from metal lines toward the silicon can contribute to the SEE response, for both back-side-incident two-photon absorption and front-side-incident single-photon absorption laser tests. We describe the metallization configurations and laser pulse energies for which reflected and/or diffracted laser light may contribute to the single-event effect (SEE) response.
C1 [Dodds, N. A.; Hooten, N. C.; Reed, R. A.; Schrimpf, R. D.; Bennett, W. G.; Gaspard, N. J.; King, M. P.] Vanderbilt Univ, Nashville, TN 37203 USA.
[Warner, J. H.; Roche, N. J. -H.; McMorrow, D.; Buchner, S.] Naval Res Lab, Washington, DC 20375 USA.
[Jordan, S.] Jazz Semicond, Newport Beach, CA 92660 USA.
[Pellish, J. A.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
RP Dodds, NA (reprint author), Sandia Natl Labs, Albuquerque, NM 87123 USA.
EM nadodds@sandia.gov
RI Schrimpf, Ronald/L-5549-2013
OI Schrimpf, Ronald/0000-0001-7419-2701
NR 30
TC 7
Z9 8
U1 1
U2 14
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 AUG
PY 2013
VL 60
IS 4
BP 2550
EP 2558
DI 10.1109/TNS.2013.2246189
PN 1
PG 9
WC Engineering, Electrical & Electronic; Nuclear Science & Technology
SC Engineering; Nuclear Science & Technology
GA 205NJ
UT WOS:000323450700026
ER
PT J
AU Warner, JH
McMorrow, D
Buchner, S
Boos, JB
Roche, N
Paillet, P
Gaillardin, M
Blackmore, E
Trinczek, M
Ramachandran, V
Reed, RA
Schrimpf, RD
AF Warner, Jeffrey H.
McMorrow, Dale
Buchner, Stephen
Boos, J. Brad
Roche, Nicolas
Paillet, Philippe
Gaillardin, Marc
Blackmore, Ewart
Trinczek, Michael
Ramachandran, Vishwa
Reed, Robert A.
Schrimpf, Ronald D.
TI Proton-Induced Transient Charge Collection in GaAs and InAlSb/InAs-Based
FETs
SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE
LA English
DT Article; Proceedings Paper
CT European Conference on Radiation and its Effects on Components and
Systems (RADECS)
CY SEP 24-28, 2012
CL Biarritz, FRANCE
SP Univ Bordeaux, IMS Labs, RADECS Org, IEEE, Nucl & Plasma Sci Soc, French Minist Higher Educ & Res, Conseil Reg Aquitaine, French Natl Ctr Sci Res (CNRS), Univ Bordeaux
DE Charge collection; GaAs; heavy ions; high electron mobility transistor
(HEMT); InAs; metal semiconductor field effect transistor (MESFET);
protons; SET cross section; single-event transients (SETs)
ID ELECTRON-MOBILITY TRANSISTORS; FIELD-EFFECT TRANSISTORS; BUFFER LAYER;
HETEROSTRUCTURE FETS; IRRADIATION; MECHANISMS; SIMULATION; RADIATION
AB The single-event transient (SET) response of two different n-channel III-V field-effect transistor technologies (GaAs MESFET, InAlSb/InAs HEMT) is measured for the first time for MeV proton irradiation. The characteristics and mechanisms of the proton-induced response of these two technologies are presented and discussed in terms of previous heavy-ion and pulsed-laser measurements. The measurements show that the maximum collected charge, event cross section, pulse amplitude, and full width at half-maximum (FWHM) all increase with increasing proton energy, and decrease as the devices are biased more strongly in depletion. The results are consistent with the presence of charge-enhancement processes that are a consequence of ionization-induced hole accumulation in the substrate/buffer regions of the devices. The InAlSb/InAs HEMT measurements reveal at least an order-of-magnitude lower sensitivity to proton-induced transient generation than the GaAs MESFET in terms of both collected charge and cross section.
C1 [Warner, Jeffrey H.; McMorrow, Dale; Buchner, Stephen; Boos, J. Brad; Roche, Nicolas] Naval Res Lab, Washington, DC 20375 USA.
[Paillet, Philippe; Gaillardin, Marc] DIF, DAM, CEA, F-91297 Arpajon, France.
[Blackmore, Ewart; Trinczek, Michael] TRIUMF, Vancouver, BC V6T 2A3, Canada.
[Ramachandran, Vishwa; Reed, Robert A.; Schrimpf, Ronald D.] Vanderbilt Univ, Dept Elect Engn & Comp Sci, Nashville, TN 37235 USA.
[Reed, Robert A.; Schrimpf, Ronald D.] Vanderbilt Univ, Inst Space & Def Elect, Nashville, TN 37235 USA.
RP Warner, JH (reprint author), Naval Res Lab, Washington, DC 20375 USA.
EM Single-event-effects@nrl.navy.mil
RI Schrimpf, Ronald/L-5549-2013
OI Schrimpf, Ronald/0000-0001-7419-2701
NR 20
TC 4
Z9 4
U1 2
U2 12
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 AUG
PY 2013
VL 60
IS 4
BP 2651
EP 2659
DI 10.1109/TNS.2013.2261091
PN 1
PG 9
WC Engineering, Electrical & Electronic; Nuclear Science & Technology
SC Engineering; Nuclear Science & Technology
GA 205NJ
UT WOS:000323450700041
ER
PT J
AU Atkinson, NM
Blaine, RW
Kauppila, JS
Armstrong, SE
Loveless, TD
Hooten, NC
Holman, WT
Massengill, LW
Warner, JH
AF Atkinson, Nicholas M.
Blaine, Raymond W.
Kauppila, Jeffrey S.
Armstrong, Sarah E.
Loveless, T. Daniel
Hooten, Nicholas C.
Holman, W. Timothy
Massengill, Lloyd W.
Warner, Jeffrey H.
TI RHBD Technique for Single-Event Charge Cancellation in Folded-Cascode
Amplifiers
SO IEEE TRANSACTIONS ON NUCLEAR SCIENCE
LA English
DT Article; Proceedings Paper
CT European Conference on Radiation and its Effects on Components and
Systems (RADECS)
CY SEP 24-28, 2012
CL Biarritz, FRANCE
SP Univ Bordeaux, IMS Labs, RADECS Org, IEEE, Nucl & Plasma Sci Soc, French Minist Higher Educ & Res, Conseil Reg Aquitaine, French Natl Ctr Sci Res (CNRS), Univ Bordeaux
DE Charge sharing; differential charge cancellation (DCC); operational
amplifier; sensitive node active charge cancellation (SNACC);
single-event effects
ID 2-PHOTON ABSORPTION; LINEAR CIRCUITS; TRANSIENTS; DESIGN; MITIGATION;
LAYOUT
AB A novel RHBD technique that exploits charge sharing is implemented in the single-ended gain stage of a folded-cascode operational amplifier to mitigate single-event transients (SETs). The efficacy of the technique is demonstrated via two-photon laser experiments. Using settling time as the primary metric for SET severity, the proposed layout technique achieves sensitive area reductions ranging from 41% to 95% with an overall area penalty of less than 1%.
C1 [Atkinson, Nicholas M.; Blaine, Raymond W.; Hooten, Nicholas C.; Holman, W. Timothy; Massengill, Lloyd W.] Vanderbilt Univ, Dept Elect Engn & Comp Sci, Nashville, TN 37235 USA.
[Kauppila, Jeffrey S.; Loveless, T. Daniel] Vanderbilt Univ, Inst Space & Def Elect, Nashville, TN 37179 USA.
[Armstrong, Sarah E.] NSWC Crane, NAVSEA, Crane, IN 47522 USA.
[Warner, Jeffrey H.] Naval Res Lab, Washington, DC 20375 USA.
RP Atkinson, NM (reprint author), Vanderbilt Univ, Dept Elect Engn & Comp Sci, 221 Kirkland Hall, Nashville, TN 37235 USA.
RI Loveless, Thomas/G-9420-2011; Loveless, Thomas/C-7132-2016
NR 20
TC 4
Z9 5
U1 1
U2 4
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 AUG
PY 2013
VL 60
IS 4
BP 2756
EP 2761
DI 10.1109/TNS.2013.2240316
PN 1
PG 6
WC Engineering, Electrical & Electronic; Nuclear Science & Technology
SC Engineering; Nuclear Science & Technology
GA 205NJ
UT WOS:000323450700055
ER
PT J
AU Luznik, L
Brownell, CJ
Snyder, MR
Kang, HS
AF Luznik, Luksa
Brownell, Cody J.
Snyder, Murray R.
Kang, Hyung Suk
TI Influence of the Atmospheric Surface Layer on a Turbulent Flow
Downstream of a Ship Superstructure
SO JOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY
LA English
DT Article
DE Boundary layer; In situ atmospheric observations; Ship observations;
Field experiments
ID PLATFORM MOTION; FACING STEP; OPEN-OCEAN; INTERFACE; MOMENTUM
AB This paper describes a set of turbulence measurements at sea in the area of high flow distortion in the near-wake and recirculation zone behind a ship's superstructure that is similar in geometry to a helicopter hangar/flight deck arrangement found on many modern U.S. Navy ships. The instrumented ship is a 32-m-long training vessel operated by the United States Naval Academy that has been modified by adding a representative flight deck and hangar structure. The flight deck is instrumented with up to seven sonic anemometers/thermometers that are used to obtain simultaneous velocity measurements at various spatial locations on the flight deck, and one sonic anemometer at bow mast is used to characterize inflow atmospheric boundary conditions. Data characterizing wind over the deck at an incoming angle of 0 degrees (head winds) and wind speeds from 2 to 10 m s(-1) obtained in the Chesapeake Bay are presented and discussed. Turbulent statistics of inflow conditions are analyzed using the Kaimal universal turbulence spectral model for the atmospheric surface layer and show that for the present dataset this approach eliminates the need to account for platform motion in computing variances and covariances. Conditional sampling of mean flow and turbulence statistics at the flight deck indicate no statistically significant variations between unstable, stable, and neutral atmospheric inflow conditions, and the results agree with the published data for flows over the backward-facing step geometries.
C1 [Luznik, Luksa; Brownell, Cody J.; Kang, Hyung Suk] US Naval Acad, Dept Mech Engn, Annapolis, MD 21402 USA.
[Snyder, Murray R.] US Naval Acad, Dept Aerosp Engn, Annapolis, MD 21402 USA.
[Snyder, Murray R.] George Washington Univ, Mech & Aerosp Engn Dept, Washington, DC USA.
RP Luznik, L (reprint author), US Naval Acad, Dept Mech Engn, 590 Holloway Rd, Annapolis, MD 21402 USA.
EM luznik@usna.edu
FU Office of Naval Research
FX This project is funded by the Office of Naval Research through the Young
Investigator Program (PI: Murray R. Snyder). We would like to recognize
the invaluable contributions of John Burks, Collin Wilkinson, and Joshua
Shishkoff to this paper and to the USNA ship air wake program. We are
also grateful to the crew of YP676 for their invaluable assistance
during data collection.
NR 31
TC 1
Z9 1
U1 2
U2 13
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 AUG
PY 2013
VL 30
IS 8
BP 1803
EP 1819
DI 10.1175/JTECH-D-12-00216.1
PG 17
WC Engineering, Ocean; Meteorology & Atmospheric Sciences
SC Engineering; Meteorology & Atmospheric Sciences
GA 207XM
UT WOS:000323638000015
ER
PT J
AU Wolford, MF
Sethian, JD
Myers, MC
Hegeler, F
Giuliani, JL
Obenschain, SP
AF Wolford, Matthew F.
Sethian, John D.
Myers, Matthew C.
Hegeler, Frank
Giuliani, John L.
Obenschain, Stephen P.
TI KRYPTON FLUORIDE (KrF) LASER DRIVER FOR INERTIAL FUSION ENERGY
SO FUSION SCIENCE AND TECHNOLOGY
LA English
DT Article; Proceedings Paper
CT 20th American-Nuclear-Society (ANS) Topical Meeting on the Technology of
Fusion Energy (TOFE)
CY AUG 27-31, 2012
CL Nashville, TN
SP Amer Nucl Soc (ANS), Oak Ridge Natl Lab, US ITER, Lawrence Livermore Natl Lab, Princeton Plasma Phys Lab, Naval Res Lab, Atom Energy Soc Japan, Canadian Nucl Soc, Inst Elect & Elect Engineers
ID TRANSIT-TIME INSTABILITY; ELECTRON-BEAM; PULSED-POWER; REP-RATE;
AMPLIFIER; PERFORMANCE; DEPOSITION; FACILITY; SYSTEM; DIODES
AB The United States Naval Research Laboratory (NRL) is developing the krypton fluoride (KrF) laser technology for a direct drive laser inertial fusion energy (HE) power plant. The overall projected wall plug efficiency for KrF laser system is similar to 7%, including thermal management and optical losses. There are two KrF lasers at NRL. The first, Nike, provides up to 3 kJ of laser light per shot for experimental research in KrF laser-target interactions. The Electra Laser at NRL is a repetitively pulsed electron beam pumped 700 Joule KrF laser facility. The objective with Electra is to develop technologies to meet the IFE requirements for repetition rate, efficiency, and durability. Electra produces over 750 Joules in oscillator mode. Based on experiments, there is expected to be virtually no degradation in the laser focal profile, even at 5 Hz, high efficiency operation. Progress in durability has lead to achievement of KrF laser runs for 10 continuous hours at 2.5 Hz (90,000 shots) and 100 minutes at 5 Hz (over 30,000 shots). The main impediment to achieving long duration runs is the present pulsed power system that is based on spark gap switches. NRL has developed a new all solid state system that has operated for 11 million pulses continuously at 10 Hz and is based on components attaining 300 million pulses. These studies show an electron beam pumped KrF laser should be a viable approach for a laser fusion energy driver.
C1 [Wolford, Matthew F.; Sethian, John D.; Myers, Matthew C.; Giuliani, John L.; Obenschain, Stephen P.] US Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
[Hegeler, Frank] Commonwealth Technol Inc, Alexandria, VA 22315 USA.
RP Wolford, MF (reprint author), US Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
OI Wolford, Matthew/0000-0002-8624-1336
NR 31
TC 3
Z9 3
U1 1
U2 8
PU AMER NUCLEAR SOC
PI LA GRANGE PK
PA 555 N KENSINGTON AVE, LA GRANGE PK, IL 60526 USA
SN 1536-1055
J9 FUSION SCI TECHNOL
JI Fusion Sci. Technol.
PD AUG
PY 2013
VL 64
IS 2
BP 179
EP 186
PG 8
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA 198RE
UT WOS:000322939200017
ER
PT J
AU Weaver, JL
Obenschain, SP
Sethian, JD
Schmitt, A
Serlin, V
Karasik, M
Bates, JW
Kehne, D
Velikovich, A
Chan, LY
Aglitsky, Y
Oh, J
Lehmberg, RH
Manhiemer, W
Colombant, D
Feldman, U
Seely, J
Zalesak, S
AF Weaver, J. L.
Obenschain, S. P.
Sethian, J. D.
Schmitt, A.
Serlin, V.
Karasik, M.
Bates, J. W.
Kehne, D.
Velikovich, A.
Chan, L. Y.
Aglitsky, Y.
Oh, J.
Lehmberg, R. H.
Manhiemer, W.
Colombant, D.
Feldman, U.
Seely, J.
Zalesak, S.
TI DEVELOPMENTS IN DIRECT DRIVE LASER FUSION
SO FUSION SCIENCE AND TECHNOLOGY
LA English
DT Article; Proceedings Paper
CT 20th American-Nuclear-Society (ANS) Topical Meeting on the Technology of
Fusion Energy (TOFE)
CY AUG 27-31, 2012
CL Nashville, TN
SP Amer Nucl Soc (ANS), Oak Ridge Natl Lab, US ITER, Lawrence Livermore Natl Lab, Princeton Plasma Phys Lab, Naval Res Lab, Atom Energy Soc Japan, Canadian Nucl Soc, Inst Elect & Elect Engineers
ID INDUCED SPATIAL INCOHERENCE; NIKE KRF LASER; TARGETS; IGNITION; ENERGY
AB Recent designs for laser driven, direct drive inertial confinement fusion (ICF) indicate that substantial gains (G>100) might be achieved with lower total laser energy (E similar to 500 kJ) than previously considered possible. A leading contender is the shock ignition approach which compresses low aspect ratio pellets with high intensity laser pulses (10(15) W/cm(2)) before achieving ignition with a final higher intensity spike (10(16) W/cm(2)). Excimer laser systems based on a krypton-fluoride (KrF) medium are particularly well suited to these new ideas as they operate in the ultraviolet (248 nm), provide highly uniform illumination, possess large bandwidth (1-3 THz), and can easily exploit beam zooming to improve laser-target coupling for the final spike pulse. This paper will examine target physics advantages of KrF lasers in relation to the new implosion designs and the balancing of hydrodynamic instability and laser-plasma instabilities. Supporting experimental and theoretical studies of are being conducted by the Nike laser group at the U. S. Naval Research Laboratory. Recent experimental work has also shown that the high ablation pressures and smooth profiles obtained with the Nike laser can be used to accelerate planar targets to velocities consistent with the requirements of impact ignition.
C1 [Weaver, J. L.; Obenschain, S. P.; Sethian, J. D.; Schmitt, A.; Serlin, V.; Karasik, M.; Bates, J. W.; Kehne, D.; Velikovich, A.; Chan, L. Y.] Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
[Aglitsky, Y.] Sci Applicat Int Corp, Mclean, VA 22102 USA.
[Lehmberg, R. H.; Manhiemer, W.] Res Support Instruments Inc, Lanham, MD 20706 USA.
[Colombant, D.; Feldman, U.; Seely, J.; Zalesak, S.] Berkeley Res Associates Inc, Berkeley, CA 94701 USA.
RP Weaver, JL (reprint author), Naval Res Lab, Div Plasma Phys, 4555 Overlook Ave, Washington, DC 20375 USA.
EM james.weaver@nrl.navy.mil
NR 24
TC 0
Z9 0
U1 1
U2 7
PU AMER NUCLEAR SOC
PI LA GRANGE PK
PA 555 N KENSINGTON AVE, LA GRANGE PK, IL 60526 USA
SN 1536-1055
J9 FUSION SCI TECHNOL
JI Fusion Sci. Technol.
PD AUG
PY 2013
VL 64
IS 2
BP 194
EP 200
PG 7
WC Nuclear Science & Technology
SC Nuclear Science & Technology
GA 198RE
UT WOS:000322939200019
ER
PT J
AU Park, D
Han, DK
Jeon, C
Ko, H
AF Park, Dubok
Han, David K.
Jeon, Changwon
Ko, Hanseok
TI Fast Single Image De-Hazing Using Characteristics of RGB Channel of
Foggy Image
SO IEICE TRANSACTIONS ON INFORMATION AND SYSTEMS
LA English
DT Article
DE air-light; de-hazing; depth estimation; image restoration
AB Images captured under foggy conditions often exhibit poor contrast and color. This is primarily due to the air-light which degrades image quality exponentially with fog depth between the scene and the camera. In this paper, we restore fog-degraded images by first estimating depth using the physical model characterizing the RGB channels in a single monocular image. The fog effects are then removed by subtracting the estimated irradiance, which is empirically related to the scene depth information obtained, from the total irradiance received by the sensor. Effective restoration of color and contrast of images taken under foggy conditions are demonstrated. In the experiments, we validate the effectiveness of our method compared with conventional method.
C1 [Park, Dubok; Jeon, Changwon; Ko, Hanseok] Korea Univ, Sch Elect Engn, Seoul, South Korea.
[Han, David K.] Off Naval Res, Arlington, VA 22217 USA.
RP Park, D (reprint author), Korea Univ, Sch Elect Engn, Seoul, South Korea.
EM hsko@korea.ac.kr
RI Xiongfei, Zhao/G-7690-2015
FU Seoul RBD Program [WR080951]
FX This research was supported by Seoul R&BD Program (WR080951).
NR 17
TC 2
Z9 2
U1 0
U2 12
PU IEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG
PI TOKYO
PA KIKAI-SHINKO-KAIKAN BLDG MINATO-KU SHIBAKOEN 3 CHOME, TOKYO, 105, JAPAN
SN 0916-8532
J9 IEICE T INF SYST
JI IEICE Trans. Inf. Syst.
PD AUG
PY 2013
VL E96D
IS 8
BP 1793
EP 1799
DI 10.1587/transinf.E96.D.1793
PG 7
WC Computer Science, Information Systems; Computer Science, Software
Engineering
SC Computer Science
GA 202RG
UT WOS:000323236700023
ER
PT J
AU Caldwell, JD
Glembocki, OJ
Francescato, Y
Sharac, N
Giannini, V
Bezares, FJ
Long, JP
Owrutsky, JC
Vurgaftman, I
Tischler, JG
Wheeler, VD
Bassim, ND
Shirey, LM
Kasica, R
Maier, SA
AF Caldwell, Joshua D.
Glembocki, Orest J.
Francescato, Yan
Sharac, Nicholas
Giannini, Vincenzo
Bezares, Francisco J.
Long, James P.
Owrutsky, Jeffrey C.
Vurgaftman, Igor
Tischler, Joseph G.
Wheeler, Virginia D.
Bassim, Nabil D.
Shirey, Loretta M.
Kasica, Richard
Maier, Stefan A.
TI Low-Loss, Extreme Subdiffraction Photon Confinement via Silicon Carbide
Localized Surface Phonon Polariton Resonators
SO NANO LETTERS
LA English
DT Article
DE Optical phonon; polar dielectric; phonon polariton; silicon carbide;
nanopillar; subdiffraction confinement; plasmonics; nanoantenna;
mid-infrared
ID ENHANCED INFRARED-ABSORPTION; NANOANTENNA ARRAYS; GRAPHENE PLASMONICS;
RAMAN-SCATTERING; SPECTROSCOPY; LIGHT; NANOPARTICLES; RESONANCES;
NANOSCALE; EMISSION
AB Plasmonics provides great promise for nanophotonic applications. However, the high optical losses inherent in metal-based plasmonic systems have limited progress. Thus, it is critical to identify alternative low-loss materials. One alternative is polar dielectrics that support surface phonon polariton SPhP) modes, where the confinement of infrared light is aided by optical phonons. Using fabricated 6H-silicon carbide nanopillar antenna arrays, we report on the observation of subdiffraction, localized SPhP resonances. They exhibit a dipolar resonance transverse to the nanopillar axis and a monopolar resonance associated with the longitudinal axis dependent upon the SiC substrate. Both exhibit exceptionally narrow linewidths (7-24 cm(-1)), with quality factors of 40-135, which exceed the theoretical limit of plasmonic systems, with extreme subwavelength confinement of (lambda(3)(res)/V-eff)(1/3) = 50-200. Under certain conditions, the modes are Raman-active, enabling their study in the visible spectral range. These observations promise to reinvigorate research in SPhP phenomena and their use for nanophotonic applications.
C1 [Caldwell, Joshua D.; Glembocki, Orest J.; Bezares, Francisco J.; Long, James P.; Owrutsky, Jeffrey C.; Vurgaftman, Igor; Tischler, Joseph G.; Wheeler, Virginia D.; Bassim, Nabil D.; Shirey, Loretta M.] US Naval Res Lab, Washington, DC USA.
[Francescato, Yan; Giannini, Vincenzo; Maier, Stefan A.] Univ London Imperial Coll Sci Technol & Med, Dept Phys, Blackett Lab, London, England.
[Kasica, Richard] NIST, Ctr Nanoscale Technol, Gaithersburg, MD 20899 USA.
[Sharac, Nicholas] Univ Calif Irvine, Dept Chem Engn & Mat Sci, Irvine, CA USA.
RP Caldwell, JD (reprint author), US Naval Res Lab, Washington, DC USA.
EM joshua.caldwell@nrl.navy.mil
RI Caldwell, Joshua/B-3253-2008; Shirey, Loretta/B-3164-2013; Giannini,
Vincenzo/J-3088-2014
OI Caldwell, Joshua/0000-0003-0374-2168; Shirey,
Loretta/0000-0003-2600-3405; Giannini, Vincenzo/0000-0001-8025-4964
FU NRL Nanoscience Institute; ASEE-NRL Postdoctoral Fellowship Program;
EPSRC; Leverhulme Trust
FX The authors would like to thank Dr. Kathy Wahl, Dr. Dan Barlow, and Dr.
Dan Burden of the Chemistry Division at the NRL for the use of their
FTIR microscope and their assistance with the experimental setup. We
would also like to thank Mr. Alex Boosalis of the University of Nebraska
for his IR-VASE ellipsometry measurements from which initial optical
constants of the SiC materials available at NRL were derived. We would
also like to thank Dr. Lucas Lindsay and Dr. Thomas Reinecke for
calculations of optical phonon lifetimes within SiC nanostructures used
in the development of this effort and Professor Gennady Shvets for
discussion of modal descriptions. Finally, electron beam lithography was
performed at the NIST Center for Nanoscale Science and Technology.
Funding for NRL authors was provided by the NRL Nanoscience Institute.
F.J.B. acknowledges support from the ASEE-NRL Postdoctoral Fellowship
Program. Y.F., S.M., and V.G. acknowledge support from EPSRC and
Leverhulme Trust.
NR 57
TC 49
Z9 49
U1 13
U2 129
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1530-6984
J9 NANO LETT
JI Nano Lett.
PD AUG
PY 2013
VL 13
IS 8
BP 3690
EP 3697
DI 10.1021/nl401590g
PG 8
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied;
Physics, Condensed Matter
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA 202SX
UT WOS:000323241000039
PM 23815389
ER
PT J
AU Williams, K
Bayles, R
Macdonald, DD
AF Williams, K.
Bayles, R.
Macdonald, D. D.
TI Scanning Vibrating Probe Monitors Al Stress Corrosion Cracking
SO ADVANCED MATERIALS & PROCESSES
LA English
DT Article
ID SENSITIZED TYPE 304-STAINLESS-STEEL; THIOSULFATE SOLUTION; FATE
C1 [Williams, K.; Bayles, R.] US Naval Res Lab, Ctr Corros Sci & Engn, Washington, DC 20375 USA.
[Macdonald, D. D.] Univ Calif Berkeley, Dept Nucl Engn, Berkeley, CA 94720 USA.
[Macdonald, D. D.] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA.
RP Williams, K (reprint author), US Naval Res Lab, Ctr Corros Sci & Engn, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM krystaufeux.williams@nrl.navy.mil
FU NRL; NRL SCEP program
FX The author acknowledges NRL and the NRL SCEP program for financial
support and Ronald Holtz for technical assistance.
NR 13
TC 0
Z9 0
U1 1
U2 4
PU ASM INT
PI MATERIALS PARK
PA SUBSCRIPTIONS SPECIALIST CUSTOMER SERVICE, MATERIALS PARK, OH 44073-0002
USA
SN 0882-7958
J9 ADV MATER PROCESS
JI Adv. Mater. Process.
PD AUG
PY 2013
VL 171
IS 8
BP 19
EP 23
PG 5
WC Materials Science, Multidisciplinary
SC Materials Science
GA 200UM
UT WOS:000323096400007
ER
PT J
AU O'Rourke, A
Weinberger, P
Morrison, M
Conklin, J
Postma, G
AF O'Rourke, Ashli
Weinberger, Paul
Morrison, Michele
Conklin, Jeffrey
Postma, Gregory
TI Topical Bethanechol for the Improvement of Esophageal Dysmotility: A
Pilot Study
SO ANNALS OF OTOLOGY RHINOLOGY AND LARYNGOLOGY
LA English
DT Article; Proceedings Paper
CT Meeting of the American-Broncho-Esophagological-Association
CY APR 18-19, 2012
CL San Diego, CA
SP Amer Broncho Esophagol Assoc
DE bethanechol; dysphagia; esophageal dysmotility; esophageal
hypoperistalsis; high resolution manometry; ineffective esophageal
motility
ID MULTICHANNEL INTRALUMINAL IMPEDANCE; PRESSURE TOPOGRAPHY; MOTILITY
ABNORMALITIES; HEALTHY-VOLUNTEERS; MOTOR FUNCTION; MANOMETRY;
PERISTALSIS; CLASSIFICATION; SPHINCTER; CLEARANCE
AB Objectives: We studied a case series to evaluate the effect of topical bethanechol chloride on esophageal function in individuals with ineffective esophageal motility.
Methods: Five subjects with ineffective esophageal motility underwent high resolution esophageal manometry. Ten 5 mL liquid swallows were performed to establish a baseline. Five milligrams of topical bethanechol was then administered. After 10 minutes, the subjects completed 10 additional liquid swallows. This procedure was repeated with 10 mg of bethanechol in 4 subjects.
Results: After administration of 5 mg of topical bethanechol, the mean (+/- SD) distal contractile integral, an index of esophageal contractility, increased from 178.3 +/- 83.1 mm Hg.s.cm to 272.3 +/- 216.9 mm Hg.s.cm (p = 0.69). The percentage of failed swallows decreased from 52.8% +/- 33.2% to 29.4% +/- 18.3% (p = 0.14). The percentage of peristaltic swallows increased from 28.0% +/- 26.8% to 67.2% +/- 15.3% (p = 0.04). The contractile front velocity was essentially unchanged. After administration of 10 mg of bethanechol, the distal contractile integral decreased from 349.3 +/- 371.0 mm Hg.s.cm to 261.8 +/- 293.5 mm Hg.s.cm (p = 0.72). The percentage of failed swallows increased from 57.5% +/- 37.7% to 66.8% +/- 24.9% (p = 0.46). The percentage of peristaltic swallows increased from 17.5% +/- 23.6% to 28.3% +/- 19.1% (p = 0.29). The contractile front velocity decreased from 11.6 +/- 5.2 cm/s to 4.9 +/- 3.0 cm/s (p = 0.32). No adverse side effects occurred.
Conclusions: The results of this pilot study support the need for further investigation with larger sample sizes and dose escalation.
C1 [O'Rourke, Ashli; Weinberger, Paul; Postma, Gregory] Georgia Regents Univ, Dept Otolaryngol Head & Neck Surg, Ctr Voice Airway & Swallowing Disorders, Augusta, GA USA.
[Morrison, Michele] Naval Med Ctr Portsmouth, Dept Otolaryngol Head & Neck Surg, Portsmouth, VA USA.
[Conklin, Jeffrey] Cedars Sinai Med Ctr, Esophageal Ctr Cedars Sinai, Los Angeles, CA 90048 USA.
RP O'Rourke, A (reprint author), Med Univ S Carolina, Evelyn Trammell Inst Voice & Swallowing, 135 Rutledge Tower MSC 550, Charleston, SC 29425 USA.
RI Weinberger, Paul/B-7007-2008
OI Weinberger, Paul/0000-0002-5885-2631
NR 19
TC 1
Z9 1
U1 0
U2 1
PU ANNALS PUBL CO
PI ST LOUIS
PA 4507 LACLEDE AVE, ST LOUIS, MO 63108 USA
SN 0003-4894
J9 ANN OTO RHINOL LARYN
JI Ann. Otol. Rhinol. Laryngol.
PD AUG
PY 2013
VL 122
IS 8
BP 481
EP 486
PG 6
WC Otorhinolaryngology
SC Otorhinolaryngology
GA 202CV
UT WOS:000323192000001
PM 24027856
ER
PT J
AU Kwon, YW
AF Kwon, Y. W.
TI Analysis of Laminated and Sandwich Composite Structures Using Solid-like
Shell Elements
SO APPLIED COMPOSITE MATERIALS
LA English
DT Article
DE Solid-like shell element; Laminated and sandwich composite; Adhesive
layer; Resin layer; Multiscale analysis
ID FINITE-ELEMENT; DISPLACEMENT DEGREES; FREEDOM; MULTILEVEL; PLATES; MODEL
AB A new solid-like shell element was formulated which is suitable for analysis of laminated and sandwich composite structures. Then, a multiscale analysis technique was implemented to the shell element formulation so that micro-level stresses and strains (i.e. stresses and strains in reinforcing fibers and the binding matrix) in those structures can be computed. The shell element has three displacement degrees of freedom per node like a 3-D solid element. Therefore, the shell elements can be stacked easily on top of one another like 3-D solid elements in order to represent multiple layers through the thickness of laminated and sandwich structures. The effect of a thin resin or adhesive layer in laminated and sandwich composite structures was investigated on both static and the dynamic responses of the structures using the developed shell elements. The study showed an apparent effect of the resin/adhesive layer even though it is very thin. As a result, the present shell element can be used effectively to include those thin layers in finite element analysis models of laminated and sandwich composite structures.
C1 Naval Postgrad Sch, Dept Mech & Aerosp Engn, Monterey, CA 93943 USA.
RP Kwon, YW (reprint author), Naval Postgrad Sch, Dept Mech & Aerosp Engn, Monterey, CA 93943 USA.
EM ywkwon@nps.edu
NR 23
TC 5
Z9 5
U1 0
U2 16
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0929-189X
EI 1573-4897
J9 APPL COMPOS MATER
JI Appl. Compos. Mater.
PD AUG
PY 2013
VL 20
IS 4
BP 355
EP 373
DI 10.1007/s10443-012-9273-8
PG 19
WC Materials Science, Composites
SC Materials Science
GA 195MF
UT WOS:000322706000003
ER
PT J
AU Kwon, YW
Park, MS
AF Kwon, Y. W.
Park, M. S.
TI Versatile Micromechanics Model for Multiscale Analysis of Composite
Structures
SO APPLIED COMPOSITE MATERIALS
LA English
DT Article
DE Micromechanics; Composite; Multiscale analysis; Fibrous composite;
Particulate composite; Hierarchical composite; Micro void
ID WOVEN FABRIC COMPOSITES; FIBROUS COMPOSITES; ELASTIC PROPERTIES;
FAILURE; HOMOGENIZATION; PARTICULATE; ALUMINUM
AB A general-purpose micromechanics model was developed so that the model could be applied to various composite materials such as reinforced by particles, long fibers and short fibers as well as those containing micro voids. Additionally, the model can be used with hierarchical composite materials. The micromechanics model can be used to compute effective material properties like elastic moduli, shear moduli, Poisson's ratios, and coefficients of thermal expansion for the various composite materials. The model can also calculate the strains and stresses at the constituent material level such as fibers, particles, and whiskers from the composite level stresses and strains. The model was implemented into ABAQUS using the UMAT option for multiscale analysis. An extensive set of examples are presented to demonstrate the reliability and accuracy of the developed micromechanics model for different kinds of composite materials. Another set of examples is provided to study the multiscale analysis of composite structures.
C1 [Kwon, Y. W.] Naval Postgrad Sch, Dept Mech & Aerosp Engn, Monterey, CA 93943 USA.
[Park, M. S.] Hannam Univ, Dept Mech Engn, Taejon, South Korea.
RP Kwon, YW (reprint author), Naval Postgrad Sch, Dept Mech & Aerosp Engn, Monterey, CA 93943 USA.
EM ywkwon@nps.edu
NR 31
TC 2
Z9 2
U1 0
U2 30
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0929-189X
J9 APPL COMPOS MATER
JI Appl. Compos. Mater.
PD AUG
PY 2013
VL 20
IS 4
BP 673
EP 692
DI 10.1007/s10443-012-9292-5
PG 20
WC Materials Science, Composites
SC Materials Science
GA 195MF
UT WOS:000322706000022
ER
PT J
AU Bishop, CH
Abramowitz, G
AF Bishop, Craig H.
Abramowitz, Gab
TI Climate model dependence and the replicate Earth paradigm
SO CLIMATE DYNAMICS
LA English
DT Article
DE Climate model ensembles; Model independence; Climate uncertainty
quantification; Climate model bias correction
ID MULTIMODEL ENSEMBLE; CHANGE PROJECTIONS; TEMPERATURE; UNCERTAINTY;
CALIBRATION; FORECASTS; WEATHER
AB Multi-model ensembles are commonly used in climate prediction to create a set of independent estimates, and so better gauge the likelihood of particular outcomes and better quantify prediction uncertainty. Yet researchers share literature, datasets and model code-to what extent do different simulations constitute independent estimates? What is the relationship between model performance and independence? We show that error correlation provides a natural empirical basis for defining model dependence and derive a weighting strategy that accounts for dependence in experiments where the multi-model mean would otherwise be used. We introduce the "replicate Earth" ensemble interpretation framework, based on theoretically derived statistical relationships between ensembles of perfect models (replicate Earths) and observations. We transform an ensemble of (imperfect) climate projections into an ensemble whose mean and variance have the same statistical relationship to observations as an ensemble of replicate Earths. The approach can be used with multi-model ensembles that have varying numbers of simulations from different models, accounting for model dependence. We use HadCRUT3 data and the CMIP3 models to show that in out of sample tests, the transformed ensemble has an ensemble mean with significantly lower error and much flatter rank frequency histograms than the original ensemble.
C1 [Bishop, Craig H.] Naval Res Lab, Marine Meteorol Div, Monterey, CA 93943 USA.
[Abramowitz, Gab] Univ New S Wales, Climate Change Res Ctr, ARC Ctr Excellence Climate Syst Sci, Sydney, NSW 2052, Australia.
RP Abramowitz, G (reprint author), Univ New S Wales, Climate Change Res Ctr, ARC Ctr Excellence Climate Syst Sci, Sydney, NSW 2052, Australia.
EM craig.bishop@nrlmry.navy.mil; gabriel@unsw.edu.au
OI Abramowitz, Gab/0000-0002-4205-001X
FU U.S. Office of Naval Research [4304-D-0-5]
FX The CMIP3 modelling groups, PCMDI and the WCRP's Working Group on
Coupled Modelling (WGCM) for making the WCRP CMIP3 multi-model dataset
available-support is provided by the Office of Science, U.S. Department
of Energy. CHB was supported by the U.S. Office of Naval Research Grant#
4304-D-0-5. We also thank an anonymous reviewer for providing extensive
and constructive feedback.
NR 34
TC 28
Z9 28
U1 1
U2 23
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0930-7575
J9 CLIM DYNAM
JI Clim. Dyn.
PD AUG
PY 2013
VL 41
IS 3-4
BP 885
EP 900
DI 10.1007/s00382-012-1610-y
PG 16
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 194GQ
UT WOS:000322619500021
ER
PT J
AU Rice, AE
Book, JW
Carniel, S
Russo, A
Schroeder, K
Wood, WT
AF Rice, Ana E.
Book, Jeffrey W.
Carniel, Sandro
Russo, Aniello
Schroeder, Katrin
Wood, Warren T.
TI Spring 2009 water mass distribution, mixing and transport in the
southern Adriatic after a low production of winter dense waters
SO CONTINENTAL SHELF RESEARCH
LA English
DT Article
DE Southern Adriatic Sea; Mixing; Frontal region; Water masses; Intrusions;
Seismic oceanography
ID SEA; BOTTOM; CIRCULATION; CURRENTS; SHELF; TRACER; RATES
AB Enhanced mixing of North Adriatic Dense Water (NAdDW) occurs in a strong frontal region as this cold and fresh intermediate water enters the southern Adriatic basin and meets warm and salty Modified Levantine Intermediate Water (MLIW) coming from the Ionian Sea. This study examines how NAdDW was mixed and transformed as it traveled southward from the Gargano to the Bari region and investigates the pathway and intrusion patterns of MLIW in late winter/spring 2009. Hydrographic data are analyzed to compute source water fractions via a least-squares analysis method and combined with ADCP data to compute source water volume fluxes. Results show that despite an anomalous low year for NAdDW production in the Adriatic, a warmer, fresher and lighter version of traditional NAdDW (i.e. 2009 NAdDW) endured its journey from Gargano to Bari. In the Gargano region, 2009 NAdDW (with fractions up to 80-90%) traveled southward in a non-continuous thin, dense vein between 35 m and 100 m isobaths, with diluted cores (> 50%) extending to 140 m depth, and with fluxes of -0.05 Sv, to the southeast, south of Palagruza Sill. Near the sill, 2009 NAdDW was further mixed and diluted with MLIW and surface water. By the time it reached the Bari region, the 2009 NAdDW fraction in the water column was reduced to about 20%. MLIW intrusions observed over the Sill and in northern sections of the study area suggest a splitting of MLIW pathways (stemming from the main South Adriatic rim pathway) towards the central Adriatic. Source water fraction results combined with velocity and seismic oceanography data show that eddies in the study area are one mechanism for the generation of MLIW intrusions towards the northwest. (c) 2013 Elsevier Ltd. All rights reserved.
C1 [Rice, Ana E.; Book, Jeffrey W.; Wood, Warren T.] Naval Res Lab, Stennis Space Ctr, MS 39529 USA.
[Carniel, Sandro] ISMAR Marine Sci Inst Venezia, CNR Natl Res Council Italy, I-30122 Venice, Italy.
[Russo, Aniello] Univ Politecn Marche, DISVA, I-60131 Ancona, Italy.
[Russo, Aniello] ISMAR Marine Sci Inst Bologna, CNR Natl Res Council Italy, I-40129 Bologna, Italy.
[Schroeder, Katrin] ISMAR Marine Sci Inst La Spezia, CNR Natl Res Council Italy, I-19132 Pozzuolo Di Lerici, SP, Italy.
RP Rice, AE (reprint author), Naval Res Lab, Code 7332,Bldg 1009,Room B137, Stennis Space Ctr, MS 39529 USA.
EM Ana.Rice.ctr@nrlssc.navy.mil; jeff.Book@nrlssc.navy.mil;
sandro.carniel@ismar.cnr.it; a.russo@univpm.it;
katrin.schroeder@ismar.cnr.it; Warren.Wood@nrlssc.navy.mil
RI Carniel, Sandro/J-9278-2012; CNR, Ismar/P-1247-2014; Schroeder,
Katrin/C-7490-2009; Russo, Aniello/A-2319-2010
OI Carniel, Sandro/0000-0001-8317-1603; CNR, Ismar/0000-0001-5351-1486;
Schroeder, Katrin/0000-0001-7991-9121; Russo,
Aniello/0000-0003-3651-8146
FU Italian National Research Council (CNR); University of Cambridge;
University of Durham; Office of Naval Research [0601153N]; Italian
Ministry for Instruction, University and Research (Miur) through FISR;
"FIRB" "DECALOGO" Project [RBFR08D828]; Italian MIUR
FX This work was supported by the Italian National Research Council (CNR),
the University of Cambridge, the University of Durham, and by the Office
of Naval Research under Program Element 0601153N. The authors thank the
crew and science team of the Italian National Research Council (CNR) R/V
Urania that participated in the VELTUR09, ADRIASEISMIC, and IMPACT09
cruises. A special thank you to Dr. R. Hobbs who helped make
ADRIASEISMIC possible and co-led the cruise. Thanks to the ADRIASEISMIC
team and to Mireno Borghini (ISMAR, La Spezia), who collected most of
the ADRIASEISMIC hydrographic data. We would also like to thank Dr.
Langone (CNR-ISMAR Bologna), who coordinated the data acquisition during
the IMPACT09 cruise (EU-HERMIONE project, FP7-ENV-2008-1-226354), and
Mr. Bortoluzzi (ISMAR Bologna), Dr. M. Ravaioli (ISMAR Bologna), Dr.
Coluccelli (DISVA, Ancona) and Dr. Falcieri (DISVA, Ancona) for data
acquisition during the VELTUR09 cruise ("VECTOR" project, funded by the
Italian Ministry for Instruction, University and Research (Miur) through
FISR 2001). Dr. Carniel acknowledges the partial support from the "FIRB"
"DECALOGO" Project, code RBFR08D828, funded by the Italian MIUR.
NR 47
TC 3
Z9 3
U1 0
U2 11
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0278-4343
EI 1873-6955
J9 CONT SHELF RES
JI Cont. Shelf Res.
PD AUG 1
PY 2013
VL 64
BP 33
EP 50
DI 10.1016/j.csr.2013.04.034
PG 18
WC Oceanography
SC Oceanography
GA 196VH
UT WOS:000322805000004
ER
PT J
AU Hegeler, F
Myers, MC
Wolford, MF
Sethian, JD
Fielding, AM
AF Hegeler, Frank
Myers, Matthew C.
Wolford, Matthew F.
Sethian, John D.
Fielding, Andrew M.
TI Low Jitter, High Voltage, Repetitive Laser Triggered Gas Switches
SO IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION
LA English
DT Article
DE Laser triggered gas switches; SF6; pulse power system; reliability
testing
ID PUMPED KRF LASER; SPARK-GAP; ELECTRON-BEAM; FUSION ENERGY; PULSED-POWER;
BREAKDOWN; DISCHARGE; EMISSION; EROSION; DESIGN
AB The Electra pulsed power system at the Naval Research Laboratory is capable of supplying 16 kJ to a low impedance load within 140 ns, and it allows continuous operation of up to 5 pulses per second for several hours. Four laser triggered SF6 gas switches transfer the stored pulse forming line energy to the load. Each switch has a hold-off voltage of more than 1 MV and transfers a charge of 10 mC per shot. This paper describes the redesign of the gas switch with hemispherical electrodes to a flat electrode configuration, which led to an improvement in switch reliability. A one sigma switch jitter of +/-1.2 ns has been achieved for tens of thousands of continuous shots, with an electrode erosion rate as low as 1 mg/C. Detailed statistical analyses are provided when the switches are operated at a SF6 pressure of 0.36 - 0.69 MPa, with a laser trigger energy of 1 - 18 mJ at 266 nm, and a switch hold-off voltage ranging from 0.7 - 1.2 MV.
C1 [Myers, Matthew C.; Wolford, Matthew F.; Sethian, John D.] Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
[Hegeler, Frank; Fielding, Andrew M.] Commonwealth Technol Inc, Alexandria, VA 22315 USA.
RP Hegeler, F (reprint author), Commonwealth Technol Inc, Alexandria, VA 22315 USA.
OI Wolford, Matthew/0000-0002-8624-1336
FU DOE; NRL Base Program
FX The work is supported by DOE and by the NRL Base Program. The original
Electra SF6 insulated gas switches with hemispherical
electrodes were designed and built by Titan PSI, now L-3 Communications,
Pulse Sciences, and they were based on NRL's Nike SF6
insulated gas switches that were designed by a team of NRL and Titan PSI
scientists and engineers. The authors would like to thank their
colleagues Dr. Evgeniya Lock for the switch dust analysis, Dr. John
Giuliani and Dr. George Petrov for helpful discussions, and John
Dubinger, Areg Mangassarian, and Warren Webster for their technical
support.
NR 61
TC 6
Z9 8
U1 0
U2 6
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1070-9878
J9 IEEE T DIELECT EL IN
JI IEEE Trns. Dielectr. Electr. Insul.
PD AUG
PY 2013
VL 20
IS 4
BP 1168
EP 1188
PG 21
WC Engineering, Electrical & Electronic; Physics, Applied
SC Engineering; Physics
GA 197EO
UT WOS:000322832600023
ER
PT J
AU Huhman, BM
Neri, JM
Wetz, DA
AF Huhman, B. M.
Neri, J. M.
Wetz, D. A.
TI Application of a Compact Electrochemical Energy Storage to Pulsed Power
Systems
SO IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION
LA English
DT Article
DE Capacitor charger; rep-rate; batteries; energy storage; electrochemical
energy storage
ID BATTERIES
AB The Pulsed Power Physics Branch at the U. S. Naval Research Laboratory (NRL) is developing a battery-powered, rep-rate charger for a 60 kJ capacitor bank. The goal is to charge a 4800 mu F capacitor to 5 kV in four seconds for a fifty shot burst. A bank of LiFePO4 batteries is used with a full H-bridge converter, a transformer, and a rectifier to transform approximate to 650 V battery voltage to a 5 kV secondary voltage. The LLC topology has been selected for the DC-DC converter, as it offers some advantages in minimizing converter weight and volume. Additionally, the LLC design enables resonant operation to switch at 50 kHz. The work to date has been focused on the design and construction of stable battery modules, and the converter design has been limited to basic circuit simulations and paper studies. Thermal management of the battery modules during operation is essential, as high temperatures will damage the cells. This work will discuss the design and testing of various cooling schemes, with results from experiments.
C1 [Huhman, B. M.; Neri, J. M.] Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
[Wetz, D. A.] Univ Texas Arlington, Arlington, TX 76010 USA.
RP Huhman, BM (reprint author), Naval Res Lab, Div Plasma Phys, 4555 Overlook Ave SW, Washington, DC 20375 USA.
FU Naval Research Laboratory Base Program
FX This work supported by the Naval Research Laboratory Base Program.
NR 19
TC 2
Z9 2
U1 0
U2 5
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1070-9878
EI 1558-4135
J9 IEEE T DIELECT EL IN
JI IEEE Trns. Dielectr. Electr. Insul.
PD AUG
PY 2013
VL 20
IS 4
BP 1299
EP 1303
PG 5
WC Engineering, Electrical & Electronic; Physics, Applied
SC Engineering; Physics
GA 197EO
UT WOS:000322832600039
ER
PT J
AU Richardson, AS
Swanekamp, SB
Schumer, JW
Ottinger, PF
AF Richardson, Andrew S.
Swanekamp, Steve B.
Schumer, Joseph W.
Ottinger, Paul F.
TI Acceleration of Ions by an Electron Beam Injected Into a Closed
Conducting Cavity
SO IEEE TRANSACTIONS ON PLASMA SCIENCE
LA English
DT Article
DE Diode; electron emission; instability; ion emission; particle-in-cell
simulation; pulsed power; virtual cathode
ID STABILITY; DIODES; FLOW
AB In a pinched-beam ion diode, an intense electron beam focuses on-axis at the center of the anode and passes through the thin anode foil into a beam dump region behind the anode foil. The beam dump usually consists of an evacuated cylindrical anode-can. Because of energy deposition from the intense electron beam, the interior surfaces of the anode-can are expected to be space-charge-limited emitters. Therefore, the electron space charge from the beam in the anode-can will draw ions off these surfaces. There is evidence from nuclear activation which suggests that ions exist in the anode-can with energies that significantly exceed those associated with the diode voltage. Analysis and particle-in-cell simulations show that a virtual cathode can form in the anode-can that accelerates ions up to the energy associated with the diode voltage. Additionally, a subset of these ions can form current bursts that are driven to the outer wall of the anode-can with ion energies as high as a few times the energy associated with the diode voltage.
C1 [Richardson, Andrew S.; Swanekamp, Steve B.; Schumer, Joseph W.] Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
[Ottinger, Paul F.] ENGILITY Corp, Chantilly, VA 20151 USA.
RP Richardson, AS (reprint author), Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
EM steve.richardson@nrl.navy.mil; steve.swanekamp@nrl.navy.mil;
schumer@nrl.navy.mil; ottinger@suzie.nrl.navy.mil
FU Defense Threat Reduction Agency Basic Research Program
FX This work was supported by the Defense Threat Reduction Agency Basic
Research Program.
NR 38
TC 2
Z9 2
U1 1
U2 3
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 AUG
PY 2013
VL 41
IS 8
BP 2299
EP 2312
DI 10.1109/TPS.2013.2260565
PN 3
PG 14
WC Physics, Fluids & Plasmas
SC Physics
GA 202JX
UT WOS:000323212400011
ER
PT J
AU Wijesekera, HW
Wang, DW
Teague, WJ
Jarosz, E
Rogers, WE
Fribance, DB
Moum, JN
AF Wijesekera, H. W.
Wang, D. W.
Teague, W. J.
Jarosz, E.
Rogers, W. E.
Fribance, D. B.
Moum, J. N.
TI Surface Wave Effects on High-Frequency Currents over a Shelf Edge Bank
SO JOURNAL OF PHYSICAL OCEANOGRAPHY
LA English
DT Article
DE Continental shelf; slope; Coastal flows; Small scale processes;
Topographic effects; Wind stress; Wind waves
ID LARGE-EDDY SIMULATION; OCEAN MIXED-LAYER; LANGMUIR CIRCULATION;
KINETIC-ENERGY; TURBULENCE MEASUREMENTS; BOUNDARY-LAYER; WIND SEAS; PART
1; DISSIPATION; BREAKING
AB Several acoustic Doppler current profilers and vertical strings of temperature, conductivity, and pressure sensors, deployed on and around the East Flower Garden Bank (EFGB), were used to examine surface wave effects on high-frequency flows over the bank and to quantify spatial and temporal characteristic of these high-frequency flows. The EFGB, about 5-km wide and 10-km long, is located about 180-km southeast of Galveston, Texas, and consists of steep slopes on southern and eastern sides that rise from water depths over 100 m to within 20 m of the surface. Three-dimensional flows with frequencies ranging from 0.2 to 2 cycles per hour (cph) were observed in the mixed layer when wind speed and Stokes drift at the surface were large. These motions were stronger over the bank than outside the perimeter. The squared vertical velocity w(2) was strongest near the surface and decayed exponentially with depth, and the e-folding length of w(2) was 2 times larger than that of Stokes drift. The 2-h-averaged w(2) in the mixed layer, scaled by the squared friction velocity, was largest when the turbulent Langmuir number was less than unity and the mixed layer was shallow. It is suggested that Langmuir circulation is responsible for the generation of vertical flows in the mixed layer, and that the increase in kinetic energy is due to an enhancement of Stokes drift by wave focusing. The lack of agreement with open-ocean Langmuir scaling arguments is likely due to the enhanced kinetic energy by wave focusing.
C1 [Wijesekera, H. W.; Wang, D. W.; Teague, W. J.; Jarosz, E.; Rogers, W. E.] Naval Res Lab, Stennis Space Ctr, MS 39529 USA.
[Fribance, D. B.] Coastal Carolina Univ, Conway, SC USA.
[Moum, J. N.] Oregon State Univ, Corvallis, OR 97331 USA.
RP Wijesekera, HW (reprint author), Naval Res Lab, Stennis Space Ctr, MS 39529 USA.
EM hemantha.wijesekera@nrlssc.navy.mil
RI Moum, James/A-1880-2012
FU Office of Naval Research in a Naval Research Laboratory (NRL); Bureau of
Ocean Energy Management (BOEM) [M10PG0003]; ONR [N00014-09-1-0280]
FX This work was sponsored by the Office of Naval Research in a Naval
Research Laboratory (NRL) project referred to as "Mixing Over Rough
Topography (MORT)" and by the Bureau of Ocean Energy Management (BOEM;
formerly Minerals Management Service) in the project referred to as
"Currents Over Banks (COB)" through the Interagency Agreement M10PG0003.
Support for James Moum was provided through ONR Grant N00014-09-1-0280.
The measurements were made in cooperation with the Flower Garden Banks
National Marine Sanctuary, administered by the National Oceanic and
Atmospheric Administration (NOAA). Support provided by Alexis Lugo
Fernandez of BOEM and Emma Hickerson of NOAA were greatly appreciated.
We thank Mark Hulbert, Steve Sova, Andrew Quaid, and Justin Brodersen
for their technical support in mooring preparations and successful
deployments. We also thank the captain, crew, and marine technician of
the R/V Pelican and crew of R/V Manta for their assistance. We thank the
two anonymous reviewers for their thorough and careful review of the
manuscript, and useful comments.
NR 51
TC 4
Z9 4
U1 1
U2 8
PU AMER METEOROLOGICAL SOC
PI BOSTON
PA 45 BEACON ST, BOSTON, MA 02108-3693 USA
SN 0022-3670
EI 1520-0485
J9 J PHYS OCEANOGR
JI J. Phys. Oceanogr.
PD AUG
PY 2013
VL 43
IS 8
BP 1627
EP 1647
DI 10.1175/JPO-D-12-0197.1
PG 21
WC Oceanography
SC Oceanography
GA 201JB
UT WOS:000323135400007
ER
PT J
AU Williams, EG
AF Williams, Earl G.
TI Convolution formulations for non-negative intensity
SO JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
LA English
DT Article
ID SUPERSONIC ACOUSTIC INTENSITY; HOLOGRAPHY; MODES; POWER
AB Previously unknown spatial convolution formulas for a variant of the active normal intensity in planar coordinates have been derived that use measured pressure or normal velocity near-field holograms to construct a positive-only (outward) intensity distribution in the plane, quantifying the areas of the vibrating structure that produce radiation to the far-field. This is an extension of the outgoing-only (unipolar) intensity technique recently developed for arbitrary geometries by Steffen Marburg. The method is applied independently to pressure and velocity data measured in a plane close to the surface of a point-driven, unbaffled rectangular plate in the laboratory. It is demonstrated that the sound producing regions of the structure are clearly revealed using the derived formulas and that the spatial resolution is limited to a half-wavelength. A second set of formulas called the hybrid-intensity formulas are also derived which yield a bipolar intensity using a different spatial convolution operator, again using either the measured pressure or velocity. It is demonstrated from the experiment results that the velocity formula yields the classical active intensity and the pressure formula an interesting hybrid intensity that may be useful for source localization. Computations are fast and carried out in real space without Fourier transforms into wavenumber space.
C1 Naval Res Lab, Acoust Div, Washington, DC 20375 USA.
RP Williams, EG (reprint author), Naval Res Lab, Acoust Div, Code 7106,4555 Overlook Ave, Washington, DC 20375 USA.
EM earl.williams@nrl.navy.mil
FU ONR
FX The experiments were performed in the experimental facilities in the
acoustics division at NRL by Dr. Peter Herdic under the direction of Dr.
Brian Houston. Funding from ONR supported the research.
NR 14
TC 5
Z9 5
U1 0
U2 5
PU ACOUSTICAL SOC AMER AMER INST PHYSICS
PI MELVILLE
PA STE 1 NO 1, 2 HUNTINGTON QUADRANGLE, MELVILLE, NY 11747-4502 USA
SN 0001-4966
J9 J ACOUST SOC AM
JI J. Acoust. Soc. Am.
PD AUG
PY 2013
VL 134
IS 2
BP 1055
EP 1066
DI 10.1121/1.4812262
PN 1
PG 12
WC Acoustics; Audiology & Speech-Language Pathology
SC Acoustics; Audiology & Speech-Language Pathology
GA 195YE
UT WOS:000322738900041
PM 23927105
ER
PT J
AU Chiu, LYS
Reeder, DB
AF Chiu, Linus Y. S.
Reeder, D. Benjamin
TI Acoustic mode coupling due to subaqueous sand dunes in the South China
Sea
SO JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
LA English
DT Article
ID PROPAGATION; SHELFBREAK
AB The large subaqueous sand dunes on the upper continental slope of the South China Sea are expected to couple acoustic propagating normal modes. In this letter, the criterion of adiabatic invariance is extended to the case of a waveguide possessing bedforms. Using the extended criterion to examine mode propagation over the bedforms observed in the sand dune field in 2012, results demonstrate that bedforms increase mode coupling strength such that the criterion for adiabatic propagation is exceeded for waveguides with small bedform amplitude to water depth ratios; increasing bedform amplitude enhances mode coupling. Numerical simulations confirm the extended criterion parameterization. (C) 2013 Acoustical Society of America
C1 [Chiu, Linus Y. S.] Natl Sun Yat Sen Univ, Inst Appl Marine Phys & Undersea Technol, Kaohsiung 80424, Taiwan.
[Reeder, D. Benjamin] Naval Postgrad Sch, Dept Oceanog, Monterey, CA 93943 USA.
RP Chiu, LYS (reprint author), Natl Sun Yat Sen Univ, Inst Appl Marine Phys & Undersea Technol, 70 Lienhai Rd, Kaohsiung 80424, Taiwan.
EM linus@mail.nsysu.edu.tw; dbreeder@nps.edu
FU National Science Council, Taiwan [NSC 100-2611-M-110-017, NSC
101-2221-E-110-048-MY2]; Asia-Pacific Ocean Research Center (National
Sun Yat-sen University, Taiwan); Office of Naval Research, USA
[N0001412WX20500]
FX The Sand Dune Survey Experiment 2012 was supported jointly by the
National Science Council, Taiwan (Project Nos. NSC 100-2611-M-110-017
and NSC 101-2221-E-110-048-MY2), the Asia-Pacific Ocean Research Center
(National Sun Yat-sen University, Taiwan), and the Office of Naval
Research, USA (Project No. N0001412WX20500). The authors also thank Dr.
Chao-Shing Lee for his providing of shipboard multibeam system, and the
lead Taiwanese and US Principal Investigators: Dr. David Tang (Taiwan),
Dr. Chi-Fang Chen (Taiwan), Dr. Y-J Yang (Taiwan), and Dr. Ching-Sang
Chiu (U.S.).
NR 10
TC 1
Z9 1
U1 1
U2 9
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 AUG
PY 2013
VL 134
IS 2
BP EL198
EP EL204
DI 10.1121/1.4812862
PN 1
PG 7
WC Acoustics; Audiology & Speech-Language Pathology
SC Acoustics; Audiology & Speech-Language Pathology
GA 195YE
UT WOS:000322738900012
PM 23927225
ER
PT J
AU Gaumond, CF
Edelmann, GF
AF Gaumond, Charles F.
Edelmann, Geoffrey F.
TI Sparse array design using statistical restricted isometry property
SO JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
LA English
DT Article
AB The numerical application of the statistical reduced isometry property (StRIP) and statistical null space property (SNSP) is presented and demonstrated for the design of underwater acoustic line arrays. This recent approach predicts the theoretical utility of specific subsampled arrays for compressive sensing. Three subsamplings are presented: Random, Golomb, and Wichmann. The Golomb array has no repeated spacings. The Wichmann array includes every possible interval of spacings. The SNSP is shown insensitive to the cases presented. The StRIP of the Golomb array predicts superior invertibility and is shown to perform well using at-sea data.
C1 [Gaumond, Charles F.; Edelmann, Geoffrey F.] Naval Res Lab, Acoust Div, Washington, DC 20375 USA.
RP Gaumond, CF (reprint author), Naval Res Lab, Acoust Div, Washington, DC 20375 USA.
EM charles.gaumond@nrl.navy.mil; geoffrey.edelman@nrl.navy.mil
FU Office of Naval Research
FX Funding was provided by the Office of Naval Research.
NR 8
TC 2
Z9 2
U1 0
U2 7
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 AUG
PY 2013
VL 134
IS 2
BP EL191
EP EL197
DI 10.1121/1.4812817
PN 1
PG 7
WC Acoustics; Audiology & Speech-Language Pathology
SC Acoustics; Audiology & Speech-Language Pathology
GA 195YE
UT WOS:000322738900011
PM 23927224
ER
PT J
AU Morgan, CA
Taylor, MK
AF Morgan, Charles A., III
Taylor, Marcus K.
TI Spontaneous and Deliberate Dissociative States in Military Personnel:
Are Such States Helpful?
SO JOURNAL OF TRAUMATIC STRESS
LA English
DT Article
ID ACUTE STRESS; DEHYDROEPIANDROSTERONE-SULFATE; PLASMA
DEHYDROEPIANDROSTERONE; UNCONTROLLABLE STRESS; OBJECTIVE PERFORMANCE;
SURVIVAL SCHOOL; NEUROPEPTIDE-Y; SYMPTOMS; CORTISOL; STRATEGIES
AB This study explored distinctions between spontaneous and deliberate dissociative states in 335 military personnel exposed to stressful survival training. Participants completed the Clinician-Administered Dissociative States Scale (CADSS) after a stressful mock-captivity event. They were also asked to indicate whether the dissociative experiences just happened (i.e., spontaneous), or whether they chose to have them happen (i.e., deliberate); and whether they appraised the dissociative experience as helpful (i.e., facilitative) or hurtful (i.e., debilitative) to their ability to cope with the stressful event. A majority (95.4%) endorsed dissociative states during stress. More than half (57.4%) described dissociative experiences as spontaneous, 13.0% as deliberate, and 29.5% endorsed neither. In Special Forces soldiers only, those who endorsed facilitative dissociation exhibited higher total CADSS scores than those who endorsed debilitative dissociation. Seventy-three percent of spontaneous dissociators described the experience as debilitative to coping with stress; conversely, 76% of deliberate dissociators said these experiences facilitated coping with stress. Individuals with prior trauma exposure tended to appraise dissociative states as more debilitative to coping. This research may enhance the fidelity of studies of dissociation constructs and may offer pivot points for prevention and treatment of stress-related disorders.
C1 [Morgan, Charles A., III] Yale Univ, Sch Med, New Haven, CT USA.
[Morgan, Charles A., III] VA Connecticut Healthcare Syst, Natl Ctr PTSD, West Haven, CT USA.
[Taylor, Marcus K.] Naval Hlth Res Ctr, Behav Sci & Epidemiol Dept, Behav Sci Lab, San Diego, CA 92106 USA.
RP Taylor, MK (reprint author), Naval Hlth Res Ctr, Behav Sci & Epidemiol Dept, 140 Sylvester Rd, San Diego, CA 92106 USA.
EM Marc.Taylor@med.navy.mil
NR 32
TC 2
Z9 2
U1 1
U2 6
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0894-9867
J9 J TRAUMA STRESS
JI J. Trauma Stress
PD AUG
PY 2013
VL 26
IS 4
BP 492
EP 497
DI 10.1002/jts.21834
PG 6
WC Psychology, Clinical; Psychiatry
SC Psychology; Psychiatry
GA 198CD
UT WOS:000322898400010
PM 23893559
ER
PT J
AU Gold, SH
Ting, A
Jabotinski, V
Zhou, B
Sprangle, P
AF Gold, S. H.
Ting, A.
Jabotinski, V.
Zhou, B.
Sprangle, P.
TI Development of a high average current rf linac thermionic injector
SO PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS
LA English
DT Article
ID FREE-ELECTRON LASER; ENERGY RECOVERY; GUN; DESIGNS
AB Thermionic electron guns are capable of operating at high average currents in a variety of vacuum electronic applications, including conventional microwave tubes, but have been replaced by laser photocathode injectors for most applications requiring high-brightness electron beams. However, while laser photocathode guns are capable of providing the very high-brightness beams, they provide an increased level of system complexity and do not extrapolate well to injectors for high average current applications requiring high beam quality. We are developing a 714 MHz injector based on a gridded thermionic electron gun for these applications. This paper presents an experimental study, computer simulations, and analysis of the performance of an existing gridded thermionic electron gun as an injector prototype, and a design concept for an improved injector configuration based on these results.
C1 [Gold, S. H.; Ting, A.; Sprangle, P.] Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
[Jabotinski, V.] Beam Wave Res Inc, Bethesda, MD 20814 USA.
[Zhou, B.] Res Support Instruments Inc, Lanham, MD 20706 USA.
RP Gold, SH (reprint author), Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
FU Office of Naval Research; High Energy Laser Joint Technology Office;
Directed Energy Scholar internship program
FX The authors are grateful for the assistance of L. Chen in developing an
image correction software program for the FOculus camera. This work was
supported by the Office of Naval Research and the High Energy Laser
Joint Technology Office. B. Zhou acknowledges the support of the
Directed Energy Scholar internship program.
NR 34
TC 3
Z9 3
U1 0
U2 10
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-4402
J9 PHYS REV SPEC TOP-AC
JI Phys. Rev. Spec. Top.-Accel. Beams
PD AUG 1
PY 2013
VL 16
IS 8
AR 083401
DI 10.1103/PhysRevSTAB.16.083401
PG 12
WC Physics, Nuclear; Physics, Particles & Fields
SC Physics
GA 195XM
UT WOS:000322736900001
ER
PT J
AU Gentry, SE
Massie, AB
Cheek, SW
Lentine, KL
Chow, EH
Wickliffe, CE
Dzebashvili, N
Salvalaggio, PR
Schnitzler, MA
Axelrod, DA
Segev, DL
AF Gentry, S. E.
Massie, A. B.
Cheek, S. W.
Lentine, K. L.
Chow, E. H.
Wickliffe, C. E.
Dzebashvili, N.
Salvalaggio, P. R.
Schnitzler, M. A.
Axelrod, D. A.
Segev, D. L.
TI Addressing Geographic Disparities in Liver Transplantation Through
Redistricting
SO AMERICAN JOURNAL OF TRANSPLANTATION
LA English
DT Article
DE Broader sharing; geographic disparities; liver allocation; Liver
Simulated Allocation Model
ID ALLOCATION; MODEL; RATES; MELD; END
AB Severe geographic disparities exist in liver transplantation; for patients with comparable disease severity, 90day transplant rates range from 18% to 86% and death rates range from 14% to 82% across donation service areas (DSAs). Broader sharing has been proposed to resolve geographic inequity; however, we hypothesized that the efficacy of broader sharing depends on the geographic partitions used. To determine the potential impact of redistricting on geographic disparity in disease severity at transplantation, we combined existing DSAs into novel regions using mathematical redistricting optimization. Optimizedmaps and current maps were evaluated using the Liver Simulated Allocation Model. Primary analysis was based on 6700 deceased donors, 28 063 liver transplant candidates, and 242 727 Model of End-Stage Liver Disease (MELD) changes in 2010. Fully regional sharing within the current regional map would paradoxically worsen geographic disparity (variance in MELD at transplantation increases from 11.2 to 13.5, p = 0.021), although it would decrease waitlist deaths (from 1368 to 1329, p = 0.002). In contrast, regional sharing within an optimized map would significantly reduce geographic disparity (to 7.0, p = 0.002) while achieving a larger decrease in waitlist deaths (to 1307, p = 0.002). Redistricting optimization, but not broader sharing alone, would reduce geographic disparity in allocation of livers for transplant across the United States.
C1 [Gentry, S. E.; Massie, A. B.; Chow, E. H.; Wickliffe, C. E.; Segev, D. L.] Johns Hopkins Univ, Sch Med, Dept Surg, Baltimore, MD 21205 USA.
[Gentry, S. E.; Cheek, S. W.] US Naval Acad, Dept Math, Annapolis, MD USA.
[Gentry, S. E.; Segev, D. L.] Minneapolis Med Res Fdn Inc, Sci Registry Transplant Recipients, Minneapolis, MN USA.
[Massie, A. B.; Segev, D. L.] Johns Hopkins Sch Publ Hlth, Dept Epidemiol, Baltimore, MD USA.
[Lentine, K. L.; Dzebashvili, N.; Schnitzler, M. A.] St Louis Univ, Sch Med, Ctr Outcomes Res, St Louis, MO USA.
[Salvalaggio, P. R.] Univ Posit, Hosp Israelita Albert Einstein, Sao Paulo, Brazil.
[Axelrod, D. A.] Dartmouth Hitchcock Med Ctr, Dept Surg, Hanover, NH USA.
RP Segev, DL (reprint author), Johns Hopkins Univ, Sch Med, Dept Surg, Baltimore, MD 21205 USA.
EM dorry@jhmi.edu
FU HHS/HRSA; American Recovery and Reinvestment Act grant from the National
Institute of Diabetes Digestive and Kidney Diseases [RC1
1RC1DK086450-01]; US Department of Health and Human Services, Health
Resources and Services Administration, Healthcare Systems Bureau,
Division of Transplantation [HHSH250201000018C]
FX The Liver Simulated Allocation Model version 4.0 and input data files
have been supplied by the Scientific Registry of Transplant Recipients
(SRTR), UNOS, and the Minneapolis Medical Research Foundation under
contract with HHS/HRSA. The authors alone are responsible for reporting
and interpreting these data; the views expressed herein are those of the
authors and not necessarily those of the US Government. The authors
thank SRTR investigators Ajay Israni, M. D., M. S., Associate Professor
of Medicine, University of Minnesota; Yi Peng, M. S., Biostatistician;
Jon Snyder, Ph.D., Adjunct Assistant Professor, University of Minnesota
School of Public Health; and Bert Kasiske, M. D., F. A. C. P., Professor
of Medicine, University of Minnesota, for thoughtful discussions of this
work during its creation. The authors thank Daniel Scharfstein, Sc.D.,
Professor of Biostatistics, Johns Hopkins University Bloomberg School of
Public Health, for statistical advice and discussion. This work was
supported by an American Recovery and Reinvestment Act grant from the
National Institute of Diabetes Digestive and Kidney Diseases, RC1
1RC1DK086450-01. This work was also supported by contract no.
HHSH250201000018C from the US Department of Health and Human Services,
Health Resources and Services Administration, Healthcare Systems Bureau,
Division of Transplantation. Neither funding organization had a role in
the design and conduct of the study; collection, management, analysis,
and interpretation of the data; or preparation, review, or approval of
the manuscript.
NR 17
TC 49
Z9 49
U1 0
U2 4
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 AUG
PY 2013
VL 13
IS 8
BP 2052
EP 2058
DI 10.1111/ajt.12301
PG 7
WC Surgery; Transplantation
SC Surgery; Transplantation
GA 190HM
UT WOS:000322330000015
PM 23837931
ER
PT J
AU Sechrist, ZA
Tonucci, RJ
Cambrea, LR
AF Sechrist, Zachary A.
Tonucci, Ronald J.
Cambrea, Lee R.
TI Stabilization of center frequency nanowell metamaterials for SERS
applications
SO APPLIED PHYSICS B-LASERS AND OPTICS
LA English
DT Article
ID ENHANCED RAMAN-SCATTERING; NEGATIVE-REFRACTIVE-INDEX; SPECTROSCOPY;
TRANSMISSION; MOLECULES; LIGHT; FILM
AB A finite element solver is used to design a metamaterial structure with large and stable Raman scattering enhancement. The metamaterial consists of an array of tapered nanowells etched into a metal/dielectric multilayer stack. The plasmonic activity as a function of the number of layers and sidewall angle of the nanowell is investigated. As the nanowell side wall angle is increased, the tops of the nanowells are drawn closer together, greatly increasing the local electric field intensity. The taper is designed such that the patterned layers at the bottom of the nanowell would have a negative refractive index if isolated from the stack, and patterned layers at the top of the stack would have a positive refractive index if isolated from the stack. Simulations predict that coupled layers at the bottom of the tapered nanowell, exhibiting a negative refractive index, experience a blue shift in local resonant frequency as the well diameter is increased or the period is decreased. The upper layers, with positive refractive index, exhibit a red shift as the well diameter is increased or the period is decreased. These opposing responses stabilize the resonant frequency with respect to variations in diameter and periodicity commonly encountered with nanofabrication techniques.
C1 [Sechrist, Zachary A.; Cambrea, Lee R.] NAWCWD, China Lake, CA 93555 USA.
[Tonucci, Ronald J.] NRL, Washington, DC 20375 USA.
RP Sechrist, ZA (reprint author), NAWCWD, 1900 Knox St,Stop 6303, China Lake, CA 93555 USA.
EM zachary.sechrist@navy.mil
FU Office of Navy Research; Office of Navy Research Independent Laboratory
In-House Research funds
FX This work was supported by the Office of Navy Research and the Office of
Navy Research Independent Laboratory In-House Research funds.
NR 28
TC 1
Z9 1
U1 3
U2 15
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0946-2171
J9 APPL PHYS B-LASERS O
JI Appl. Phys. B-Lasers Opt.
PD AUG
PY 2013
VL 112
IS 1
BP 133
EP 142
DI 10.1007/s00340-013-5409-2
PG 10
WC Optics; Physics, Applied
SC Optics; Physics
GA 194ZP
UT WOS:000322671500016
ER
PT J
AU Hernandez, SC
Bezares, FJ
Robinson, JT
Caldwell, JD
Walton, SG
AF Hernandez, Sandra C.
Bezares, Francisco J.
Robinson, Jeremy T.
Caldwell, Joshua D.
Walton, Scott G.
TI Controlling the local chemical reactivity of graphene through spatial
functionalization
SO CARBON
LA English
DT Article
ID WALLED CARBON NANOTUBES; EPITAXIAL GRAPHENE; METAL NANOPARTICLES;
VAPOR-DEPOSITION; FILMS; ELECTRODEPOSITION; PLASMA; TRANSISTORS; ENERGY;
OXIDE
AB Spatial distribution of nitrogen functional groups on graphene by use of physical masks during plasma processing is demonstrated. Structural and chemical modifications are evidenced by micro-Raman and high-resolution X-ray photoelectron spectroscopy mapping, demonstrating a strong dependence on the processing conditions and physical mask configurations. The resulting nitrogen chemical moieties influence the electronic transport by affecting the mobility of carriers and consequently increasing the electron transfer kinetics, which provide localized chemical reactive sites. The chemical moieties demonstrate the ability to tailor the locality of the surface chemistry on graphene opening up a wide range of reactivity studies and synthesis capabilities, such as site-specific electrochemical deposition. (C) 2013 Elsevier Ltd. All rights reserved.
C1 [Hernandez, Sandra C.] Naval Res Lab, NRC Postdoctoral Res Associate, Washington, DC 20375 USA.
[Bezares, Francisco J.] Naval Res Lab, ASEE Postdoctoral Res Associate, Washington, DC 20375 USA.
[Robinson, Jeremy T.; Caldwell, Joshua D.] Naval Res Lab, Elect Sci & Technol Div, Washington, DC 20375 USA.
[Walton, Scott G.] Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
RP Hernandez, SC (reprint author), Naval Res Lab, NRC Postdoctoral Res Associate, 4555 Overlook Ave, Washington, DC 20375 USA.
EM sandra.hangarter.ctr@nrl.navy.mil
RI Robinson, Jeremy/F-2748-2010; Caldwell, Joshua/B-3253-2008
OI Caldwell, Joshua/0000-0003-0374-2168
FU Naval Research Laboratory Base Program
FX S.C.H. and F.J.B. are grateful for the NRL/NRC and NRL/ASEE Postdoctoral
Research Associateships. We thank Anthony Knoll, Christopher Compton,
and Nelson Garces for the design of the physical masks, George Gatling
for writing the Labview program, James Culbertson for the use of his
Raman spectral mapping analysis program, P. E. Sheehan for the use of
his Potentiostat, N.V. Myung for the electrolyte, and David R. Boris for
insightful plasma discussions. This work was supported by the Naval
Research Laboratory Base Program.
NR 77
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Z9 16
U1 0
U2 83
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0008-6223
J9 CARBON
JI Carbon
PD AUG
PY 2013
VL 60
BP 84
EP 93
DI 10.1016/j.carbon.2013.03.059
PG 10
WC Chemistry, Physical; Materials Science, Multidisciplinary
SC Chemistry; Materials Science
GA 180MB
UT WOS:000321598200010
ER
PT J
AU Cohen, AR
Lohani, S
Manjila, S
Natsupakpong, S
Brown, N
Cavusoglu, MC
AF Cohen, Alan R.
Lohani, Subash
Manjila, Sunil
Natsupakpong, Suriya
Brown, Nathan
Cavusoglu, M. Cenk
TI Virtual reality simulation: basic concepts and use in endoscopic
neurosurgery training
SO CHILDS NERVOUS SYSTEM
LA English
DT Article
DE Virtual reality; Simulation; Neuroendoscopy; Training; Endoscopic third
ventriculostomy
ID SURGICAL SIMULATION; 3RD VENTRICULOSTOMY; TEMPORAL BONE; SURGERY;
ENVIRONMENTS; FEEDBACK
AB Virtual reality simulation is a promising alternative to training surgical residents outside the operating room. It is also a useful aide to anatomic study, residency training, surgical rehearsal, credentialing, and recertification.
Surgical simulation is based on a virtual reality with varying degrees of immersion and realism. Simulators provide a no-risk environment for harmless and repeatable practice. Virtual reality has three main components of simulation: graphics/volume rendering, model behavior/tissue deformation, and haptic feedback. The challenge of accurately simulating the forces and tactile sensations experienced in neurosurgery limits the sophistication of a virtual simulator. The limited haptic feedback available in minimally invasive neurosurgery makes it a favorable subject for simulation.
Virtual simulators with realistic graphics and force feedback have been developed for ventriculostomy, intraventricular surgery, and transsphenoidal pituitary surgery, thus allowing preoperative study of the individual anatomy and increasing the safety of the procedure. The authors also present experiences with their own virtual simulation of endoscopic third ventriculostomy.
C1 [Cohen, Alan R.; Lohani, Subash] Boston Childrens Hosp, Dept Neurosurg, Minimally Invas Neurosurg Lab, Boston, MA USA.
[Manjila, Sunil] Univ Hosp Cleveland, Dept Neurosurg, Minimally Invas Neurosurg Lab, Cleveland, OH 44106 USA.
[Natsupakpong, Suriya] King Mongkuts Univ Technol Thonburi, Inst Field Robot, Bangkok, Thailand.
[Brown, Nathan] Naval Postgrad Sch, Dept Elect & Comp Engn, Monterey, CA USA.
[Cavusoglu, M. Cenk] Case Western Reserve Univ, Case Sch Engn, Dept Elect Engn & Comp Sci, Cleveland, OH 44106 USA.
RP Cohen, AR (reprint author), Boston Childrens Hosp, Dept Neurosurg, Minimally Invas Neurosurg Lab, Boston, MA USA.
EM alan.cohen@childrens.harvard.edu
NR 29
TC 12
Z9 12
U1 1
U2 16
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0256-7040
J9 CHILD NERV SYST
JI Childs Nerv. Syst.
PD AUG
PY 2013
VL 29
IS 8
BP 1235
EP 1244
DI 10.1007/s00381-013-2139-z
PG 10
WC Clinical Neurology; Pediatrics; Surgery
SC Neurosciences & Neurology; Pediatrics; Surgery
GA 185FT
UT WOS:000321952500006
PM 23702736
ER
PT J
AU Kocaguneli, E
Menzies, T
Keung, J
Cok, D
Madachy, R
AF Kocaguneli, Ekrem
Menzies, Tim
Keung, Jacky
Cok, David
Madachy, Ray
TI Active Learning and Effort Estimation: Finding the Essential Content of
Software Effort Estimation Data
SO IEEE TRANSACTIONS ON SOFTWARE ENGINEERING
LA English
DT Article
DE Software cost estimation; active learning; analogy; k-NN
ID COST ESTIMATION MODELS; PREDICTION; VALIDATION; SIMULATION
AB Background: Do we always need complex methods for software effort estimation (SEE)? Aim: To characterize the essential content of SEE data, i.e., the least number of features and instances required to capture the information within SEE data. If the essential content is very small, then 1) the contained information must be very brief and 2) the value added of complex learning schemes must be minimal. Method: Our QUICK method computes the euclidean distance between rows (instances) and columns (features) of SEE data, then prunes synonyms (similar features) and outliers (distant instances), then assesses the reduced data by comparing predictions from 1) a simple learner using the reduced data and 2) a state-of-the-art learner (CART) using all data. Performance is measured using hold-out experiments and expressed in terms of mean and median MRE, MAR, PRED(25), MBRE, MIBRE, or MMER. Results: For 18 datasets, QUICK pruned 69 to 96 percent of the training data (median = 89 percent). K 1 nearest neighbor predictions (in the reduced data) performed as well as CART's predictions (using all data). Conclusion: The essential content of some SEE datasets is very small. Complex estimation methods may be overelaborate for such datasets and can be simplified. We offer QUICK as an example of such a simpler SEE method.
C1 [Kocaguneli, Ekrem; Menzies, Tim] W Virginia Univ, Lane Dept Comp Sci & Elect Engn, Morgantown, WV 26506 USA.
[Keung, Jacky] City Univ Hong Kong, Dept Comp Sci, Hong Kong, Hong Kong, Peoples R China.
[Cok, David] GrammaTech Inc, Ithaca, NY USA.
[Madachy, Ray] Naval Postgraduate Sch, Monterey, CA 93943 USA.
RP Kocaguneli, E (reprint author), W Virginia Univ, Lane Dept Comp Sci & Elect Engn, Morgantown, WV 26506 USA.
EM kocaguneli@gmail.com; tim@menzies.us; jackykeung@gmail.com;
dcok@grammatech.com; rjmadach@nps.edu
FU US National Science Foundation [CCF: 1017330, CCF: 1017263]; US Army
Research Laboratory [W911QX-10-C-0066]
FX The work was funded by US National Science Foundation grants CCF:
1017330 and CCF: 1017263. The research reported in this
document/presentation was performed in connection with
contract/instrument W911QX-10-C-0066 with the US Army Research
Laboratory. The views and conclusions contained in this
document/presentation are those of the authors and should not be
interpreted as presenting the official policies or position, either
expressed or implied, of the US Army Research Laboratory or the US
Government unless so designated by other authorized documents. Citation
of manufacturers or trade names does not constitute an official
endorsement or approval of the use thereof. The US Government is
authorized to reproduce and distribute reprints for Government purposes
notwithstanding any copyright notation hereon. The authors would like to
thank Brad Clark, Brendan Murphy, Jairus Hihn, and Ricardo Valerdi for
their invaluable feedback and time.
NR 49
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Z9 14
U1 0
U2 14
PU IEEE COMPUTER SOC
PI LOS ALAMITOS
PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1314 USA
SN 0098-5589
J9 IEEE T SOFTWARE ENG
JI IEEE Trans. Softw. Eng.
PD AUG
PY 2013
VL 39
IS 8
BP 1040
EP 1053
DI 10.1109/TSE.2012.88
PG 14
WC Computer Science, Software Engineering; Engineering, Electrical &
Electronic
SC Computer Science; Engineering
GA 191BU
UT WOS:000322388400001
ER
PT J
AU O'Connell, AB
AF O'Connell, Aaron B.
TI Welcome to the Suck: Narrating the American Soldier's Experience in Iraq
SO JOURNAL OF AMERICAN STUDIES
LA English
DT Book Review
C1 [O'Connell, Aaron B.] US Naval Acad, Annapolis, MD 21402 USA.
RP O'Connell, AB (reprint author), US Naval Acad, Annapolis, MD 21402 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 0021-8758
J9 J AM STUD
JI J. Am. Stud.
PD AUG
PY 2013
VL 47
IS 3
AR UNSP e90
DI 10.1017/S0021875813001230
PG 2
WC Humanities, Multidisciplinary
SC Arts & Humanities - Other Topics
GA 182PZ
UT WOS:000321757500037
ER
PT J
AU Coffin, RB
Smith, JP
Plummer, RE
Yoza, B
Larsen, RK
Millholland, LC
Montgomery, MT
AF Coffin, Richard B.
Smith, Joseph P.
Plummer, Rebecca E.
Yoza, Brandon
Larsen, Randolph K.
Millholland, Lewis C.
Montgomery, Michael T.
TI Spatial variation in shallow sediment methane sources and cycling on the
Alaskan Beaufort Sea Shelf/Slope
SO MARINE AND PETROLEUM GEOLOGY
LA English
DT Article
DE Methane flux; Carbon cycling; Arctic coastal ocean; Arctic shelf
ID GULF-OF-MEXICO; CONTINENTAL-MARGIN SEDIMENTS; PORE-WATER PROFILES;
ANAEROBIC OXIDATION; MARINE-SEDIMENTS; GAS HYDRATE; SULFATE REDUCTION;
MACKENZIE DELTA; ORGANIC-CARBON; ARCTIC-OCEAN
AB The MITAS (Methane in the Arctic Shelf/Slope) expedition was conducted during September, 2009 onboard the U.S. Coast Guard Cutter (USCGC) Polar Sea (WAGB-11), on the Alaskan Shelf/Slope of the Beaufort Sea. Expedition goals were to investigate spatial variations in methane source(s), vertical methane flux in shallow sediments (<10 mbsf), and methane contributions to shallow sediment carbon cycling. Three nearshore to offshore transects were conducted across the slope at locations approximately 200 km apart in water column depths from 20 to 2100 m. Shallow sediments were collected by piston cores and vibracores and samples were analyzed for sediment headspace methane (CH4), porewater sulfate (SO42-), chloride (Cl-), and dissolved inorganic carbon (DIC) concentrations, and CH4 and DIC stable carbon isotope ratios (delta C-13). Downward SO42- diffusion rates estimated from sediment porewater SO42- profiles were between -15.4 and -154.8 mmol m(-2) a(-1) and imply a large spatial variation in vertical CH4 flux between transects in the study region. Lowest inferred CH4 fluxes were estimated along the easternmost transect. Higher inferred CH4 flux rates were observed in the western transects. Sediment headspace delta C-13(CH4) values ranged from -138 to -48 parts per thousand., suggesting strong differences in shallow sediment CH4 cycling within and among sample locations. Measured porewater DIC concentrations ranged from 2.53 mM to 79.39 mM with delta C-13(DIC) values ranging from -36.4 parts per thousand to 5.1 parts per thousand, Higher down-core DIC concentrations were observed to occur with lower delta C-13 where an increase in delta C-13(CH4), was measured, indicating locations with active anaerobic oxidation of methane. Shallow core CH4 production was inferred at the two western most transects (i.e. Thetis Island and Halkett) through observations of low delta C-13(CH4), coupled with elevated DIC concentrations. At the easternmost Hammerhead transect and offshore locations, delta C-13(CH4), and DIC concentrations were not coupled suggesting less rapid methane cycling. Results from the MITAS expedition represent one of the most comprehensive studies of methane source(s) and vertical methane flux in shallow sediments of the U.S. Alaskan Beaufort Shelf to date and show geospatially variable sediment methane flux that is highly influenced by the local geophysical environment (C) 2013 Published by Elsevier Ltd.
C1 [Coffin, Richard B.; Montgomery, Michael T.] Naval Res Lab, Washington, DC 20375 USA.
[Smith, Joseph P.] US Naval Acad, Dept Oceanog, Annapolis, MD USA.
[Plummer, Rebecca E.] Univ Maryland, Dept Chem, College Pk, MD 20742 USA.
[Yoza, Brandon] Univ Hawaii, Hawaii Nat Energy Inst, Honolulu, HI 96822 USA.
[Larsen, Randolph K.] St Marys Coll Maryland, Dept Chem & Biochem, St Marys City, MD 20686 USA.
[Millholland, Lewis C.] SAIC Naval Res Lab, Washington, DC USA.
RP Coffin, RB (reprint author), Naval Res Lab, NRL Code 6114,4555 Overlook Ave,SW, Washington, DC 20375 USA.
EM richard.coffin@nrl.navy.mil
RI Larsen, Randolph/A-8402-2009
OI Larsen, Randolph/0000-0003-0892-0074
FU Office of Naval Research; Department of Energy, National Energy
Technology Laboratory; American Chemical Society Petroleum Research Fund
FX Acknowledgment is made to the Office of Naval Research and Department of
Energy, National Energy Technology Laboratory for support of this
research. Acknowledgment is made to the Donors of the American Chemical
Society Petroleum Research Fund for partial support of this research. We
appreciate the persistent, strong support of the U.S. Coast Guard
onboard science team during development of science plans and field work
on the USCGC Polar Sea. Ray Boswell (NETL-DOE) provided an outstanding
initial review of this manuscript. In addition, this manuscript was
improved by the comments of two anonymous reviewers. This expedition was
planned in collaboration with co-chief scientist Jens Greinert (GEOMAR
Helmholtz Centre For Ocean Research Kiel) under the PERGAMON program.
NR 70
TC 10
Z9 10
U1 5
U2 59
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0264-8172
J9 MAR PETROL GEOL
JI Mar. Pet. Geol.
PD AUG
PY 2013
VL 45
BP 186
EP 197
DI 10.1016/j.marpetgeo.2013.05.002
PG 12
WC Geosciences, Multidisciplinary
SC Geology
GA 186PM
UT WOS:000322056600014
ER
PT J
AU Kearney, B
Alves, F
Grbovic, D
Karunasiri, G
AF Kearney, Brian
Alves, Fabio
Grbovic, Dragoslav
Karunasiri, Gamani
TI Terahertz metamaterial absorbers with an embedded resistive layer
SO OPTICAL MATERIALS EXPRESS
LA English
DT Article
ID QUANTUM CASCADE LASER; FOCAL-PLANE ARRAY; REAL-TIME; MICROBOLOMETERS
AB A conductive layer of Ti, with a sheet resistance of about 220 Omega/sq, was placed in the dielectric spacer of an Al/SiOx/Al metamaterial terahertz absorber at various depths to probe the effect on the absorption of terahertz radiation. For a square size of 15 mu m and a periodicity of 21 mu m, and dielectric thickness approximately 1.6 mu m, maximum absorption was 60%, 88%, and 94% for Ti layers 297, 765, and 1270 nm deep into the SiOx. Finite element simulations of the absorption correlated well with that of the measurements. This indicates that metamaterials with an embedded high temperature coefficient of resistance (TCR) conducting layer can be used for fabrication of microbolometers with tuned spectral sensitivity.
C1 [Kearney, Brian; Alves, Fabio; Grbovic, Dragoslav; Karunasiri, Gamani] Naval Postgrad Sch, Dept Phys, Monterey, CA 93943 USA.
RP Kearney, B (reprint author), Naval Postgrad Sch, Dept Phys, 833 Dyer Rd,Bldg 232, Monterey, CA 93943 USA.
EM btkearne@nps.edu
FU ONR; NRO; Office of Basic Energy Sciences, U.S. Department of Energy
FX This work is supported, in part, through grants from the ONR and NRO. A
portion of this research was conducted at the Center for Nanophase
Materials Sciences, which is sponsored at Oak Ridge National Laboratory
by the Office of Basic Energy Sciences, U.S. Department of Energy.
NR 20
TC 2
Z9 2
U1 0
U2 54
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 AUG 1
PY 2013
VL 3
IS 8
BP 1020
EP 1025
DI 10.1364/OME.3.001020
PG 6
WC Materials Science, Multidisciplinary; Optics
SC Materials Science; Optics
GA 194JZ
UT WOS:000322630100002
ER
PT J
AU Sassenberg, K
Richardson, AS
Brennan, DP
Finn, JM
AF Sassenberg, K.
Richardson, A. S.
Brennan, D. P.
Finn, J. M.
TI Control of magnetohydrodynamic modes in reversed field pinches with
normal and tangential magnetic field sensing and two resistive walls
SO PLASMA PHYSICS AND CONTROLLED FUSION
LA English
DT Article; Proceedings Paper
CT 17th Annual Workshop on Magnetohydrodynamic (MHD) Stability Control -
Addressing the Disruption Challenge for ITER
CY NOV 05-07, 2012
CL Columbia Univ, New York, NY
HO Columbia Univ
ID POLOIDAL CURRENT DRIVE; ACTIVE MHD CONTROL; FEEDBACK-CONTROL; HELICITY
STATES; EXTRAP T2R; RFX-MOD; SINGLE; PARADIGM; PLASMAS; TORUS
AB Numerical results are presented on control of magnetohydrodynamic (MHD) modes in reversed field pinches (RFPs) for a geometry with two resistive walls. We use measurements of the normal component of the magnetic field and introduce the use of both tangential components. In Richardson et al (2010 Phys. Plasmas 17 112511), RFP control studies were performed sensing the radial (normal) component of the magnetic field and a single tangential component just inside the wall, showing that it is possible to stabilize the MHD modes in an RFP for current up to the ideal plasma-ideal wall limit in that configuration. Here, we extend our modeling by including two resistive walls, in a configuration relevant to experiments such as RFX-mod, and measuring all three magnetic field components, i.e. including a second tangential component, as an exploratory effort. We present our study incrementally, starting with a single resistive wall, and conclude that with the first tangential sensor located inside the wall, the plasma can be stabilized up to the ideal plasma-ideal wall limit, as in Richardson et al. With the first tangential sensor outside the wall, stabilization is possible only up to the ideal wall-resistive plasma (tearing) limit. We then show that for experimentally relevant parameters the thin-wall approximation is indeed valid for the MHD modes of interest but invalid for the high-frequency magnetosonic mode (Richardson et al) driven by the (first) tangential component feedback. In fact, when a thick-wall formulation with realistic parameters is considered, the high-frequency magnetosonic mode is found to be destabilized only for a very high gain parameter, and we conclude that this mode can be ignored for an experimentally relevant analysis. Consequently, the plasma can be stabilized in a much larger region of feedback gain parameter space than found in Richardson et al. In the presence of two walls, with the first tangential component measured just outside the inner wall and with RFX-mod relevant time constants, we show that feedback control can stabilize the plasma at currents much larger than the ideal wall-resistive plasma limit. The current limit is still less, however, than the ideal plasma-ideal wall limit. Use of the second tangential component appears in all cases to lead to significantly different but not necessarily improved feedback stabilization. These results may lead to better understanding and improved stability properties in current-day RFP experiments through robust access to quasi-single-helicity states.
C1 [Sassenberg, K.; Brennan, D. P.] Univ Tulsa, Dept Phys, Tulsa, OK 74104 USA.
[Richardson, A. S.] Naval Res Lab, Washington, DC 20375 USA.
[Finn, J. M.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
RP Sassenberg, K (reprint author), Univ Tulsa, Dept Phys, Tulsa, OK 74104 USA.
EM dylan-brennan@utulsa.edu
OI Richardson, Andrew/0000-0002-3056-6334
NR 31
TC 2
Z9 2
U1 0
U2 2
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0741-3335
J9 PLASMA PHYS CONTR F
JI Plasma Phys. Control. Fusion
PD AUG
PY 2013
VL 55
IS 8
AR 084002
DI 10.1088/0741-3335/55/8/084002
PG 19
WC Physics, Fluids & Plasmas
SC Physics
GA 195LB
UT WOS:000322702700003
ER
PT J
AU Reintjes, J
Bashkansky, M
AF Reintjes, J.
Bashkansky, Mark
TI Does transmission of a weak optical pulse in a dense absorption medium
require quantization of the optical field?
SO AMERICAN JOURNAL OF PHYSICS
LA English
DT Article
ID QUANTUM-MECHANICS; ENERGY
AB We present an analysis of the transmission of a weak optical pulse, with energy 1 (h) over bar omega(0), through a dense absorbing medium with absorption frequency omega(0). We analyze the system by treating the optical pulse classically and the absorbing medium quantum mechanically. We find that the probabilistic back reaction of the quantum absorber on the classical pulse impresses statistical behavior on the pulse that does not arise from quantization of the optical field. All properties of the optical transmission and atomic absorption are self-consistent without contradiction. Issues relating to conservation of energy are resolved by considering the impact of superposition states on conservation laws in individual interactions. As a result, we conclude that transmission of a weak optical pulse with energy 1 (h) over bar omega(0) through a dense atomic absorber does not require quantization of the field. (C) 2013 American Association of Physics Teachers.
C1 [Reintjes, J.] Sotera Def Solut, Annapolis Jct, MD 20701 USA.
[Bashkansky, Mark] US Naval Res Lab, Washington, DC 20375 USA.
RP Reintjes, J (reprint author), Sotera Def Solut, 430 Natl Business Pkwy,Suite 100, Annapolis Jct, MD 20701 USA.
EM reintjes@ccs.nrl.navy.mil; bashkansky@nrl.navy.mil
FU Office of Naval Research
FX This work was supported by the Office of Naval Research. The authors
would like to thank Drs. L. L. Tankersley, Robert Lehmberg, Brian
Justus, and Guy Beadie for valuable discussions and critical reading of
the manuscript.
NR 20
TC 0
Z9 0
U1 1
U2 3
PU AMER ASSOC PHYSICS TEACHERS AMER INST PHYSICS
PI MELVILLE
PA STE 1 NO 1, 2 HUNTINGTON QUADRANGLE, MELVILLE, NY 11747-4502 USA
SN 0002-9505
J9 AM J PHYS
JI Am. J. Phys.
PD AUG
PY 2013
VL 81
IS 8
BP 610
EP 617
DI 10.1119/1.4807656
PG 8
WC Education, Scientific Disciplines; Physics, Multidisciplinary
SC Education & Educational Research; Physics
GA 187UJ
UT WOS:000322145900008
ER
PT J
AU Clarke, TE
Randall, SW
Sarazin, CL
Blanton, EL
Giacintucci, S
AF Clarke, T. E.
Randall, S. W.
Sarazin, C. L.
Blanton, E. L.
Giacintucci, S.
TI CHANDRA VIEW OF THE ULTRA-STEEP SPECTRUM RADIO SOURCE IN A2443: MERGER
SHOCK-INDUCED COMPRESSION OF FOSSIL RADIO PLASMA?
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE galaxies: clusters: general; galaxies: clusters: individual (A2443);
radio continuum: galaxies; X-rays: galaxies: clusters
ID GALAXY CLUSTER; X-RAY; COLD FRONTS; BOW SHOCK; RELICS; CORES; WAVES;
REDSHIFTS; EMISSION; CATALOG
AB We present a new Chandra X-ray observation of the intracluster medium in the galaxy cluster A2443, hosting an ultra-steep spectrum radio source. The data reveal that the intracluster medium is highly disturbed. The thermal gas in the core is elongated along a northwest to southeast axis and there is a cool tail to the north. We also detect two X-ray surface brightness edges near the cluster core. The edges appear to be consistent with an inner cold front to the northeast of the core and an outer shock front to the southeast of the core. The southeastern edge is coincident with the location of the radio relic as expected for shock (re) acceleration or adiabatic compression of fossil relativistic electrons.
C1 [Clarke, T. E.] USN, Res Lab, Washington, DC 20375 USA.
[Randall, S. W.] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA.
[Sarazin, C. L.] Univ Virginia, Dept Astron, Charlottesville, VA 22904 USA.
[Blanton, E. L.] Boston Univ, Dept Astron, Boston, MA 02215 USA.
[Blanton, E. L.] Boston Univ, Inst Astrophys Res, Boston, MA 02215 USA.
[Giacintucci, S.] Univ Maryland, Dept Astron, College Pk, MD 20742 USA.
[Giacintucci, S.] Univ Maryland, Joint Space Sci Inst, College Pk, MD 20742 USA.
RP Clarke, TE (reprint author), USN, Res Lab, Code 7213, Washington, DC 20375 USA.
EM tracy.clarke.ca@nrl.navy.mil
RI Blanton, Elizabeth/H-4501-2014;
OI Randall, Scott/0000-0002-3984-4337
FU National Aeronautics and Space Administration, through Chandra Award
Number [GO1-12007Z]; 6.1 Base funding; Chandra X-ray Center through NASA
contract [NAS8-03060]; Smithsonian Institution; NASA Chandra Grants
[GO9-0135X, GO9-0148X, GO1-12169X]; NASA ADAP grant [NNX11AD15G]; NASA
through the Astrophysics Data Analysis Program [NNX10AC98G]; NASA award
RSA [1440385]; NASA through Einstein Postdoctoral Fellowship
[PF0-110071]; Chandra X-ray Center; Alfred P. Sloan Foundation; National
Science Foundation; U.S. Department of Energy Office of Science
FX T. E. C. was supported in part for this work by the National Aeronautics
and Space Administration, through Chandra Award Number GO1-12007Z. Basic
research in radio astronomy at the Naval Research Laboratory is
supported by 6.1 Base funding. S. R. is supported by the Chandra X-ray
Center through NASA contract NAS8-03060 and the Smithsonian Institution.
C. L. S. was supported in part by NASA Chandra Grants GO9-0135X,
GO9-0148X, and GO1-12169X, and NASA ADAP grant NNX11AD15G. E. L. B. was
partially supported by NASA through the Astrophysics Data Analysis
Program, grant number NNX10AC98G, and through NASA award RSA No. 1440385
issued by JPL/Caltech. S. G. acknowledges the support of NASA through
Einstein Postdoctoral Fellowship PF0-110071 awarded by the Chandra X-ray
Center. The National Radio Astronomy Observatory is a facility of the
National Science Foundation operated under cooperative agreement by
Associated Universities, Inc. 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.;
Funding for SDSS-III has been provided by the Alfred P. Sloan
Foundation, the Participating Institutions, the National Science
Foundation, and the U.S. Department of Energy Office of Science. The
SDSS-III Web site is http://www.sdss3.org/.
NR 58
TC 6
Z9 6
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 AUG 1
PY 2013
VL 772
IS 2
AR 84
DI 10.1088/0004-637X/772/2/84
PG 12
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 186EL
UT WOS:000322024700006
ER
PT J
AU Sheeley, NR
Martin, SF
Panasenco, O
Warren, HP
AF Sheeley, N. R., Jr.
Martin, S. F.
Panasenco, O.
Warren, H. P.
TI USING CORONAL CELLS TO INFER THE MAGNETIC FIELD STRUCTURE AND CHIRALITY
OF FILAMENT CHANNELS
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE magnetic fields; Sun: corona; Sun: filaments, prominences; Sun: UV
radiation
ID IMAGING SPECTROMETER; NETWORK ACTIVITY; ACTIVE REGIONS; POLAR PLUMES;
SOLAR; FLUX; SUN; HELICITY; HINODE; ORIGIN
AB Coronal cells are visible at temperatures of similar to 1.2 MK in Fe xII coronal images obtained from the Solar Dynamics Observatory and Solar Terrestrial Relations Observatory spacecraft. We show that near a filament channel, the plumelike tails of these cells bend horizontally in opposite directions on the two sides of the channel like fibrils in the chromosphere. Because the cells are rooted in magnetic flux concentrations of majority polarity, these observations can be used with photospheric magnetograms to infer the direction of the horizontal field in filament channels and the chirality of the associated magnetic field. This method is similar to the procedure for inferring the direction of the magnetic field and the chirality of the fibril pattern in filament channels from Ha observations. However, the coronal cell observations are easier to use and provide clear inferences of the horizontal field direction for heights up to similar to 50 Mm into the corona.
C1 [Sheeley, N. R., Jr.; Warren, H. P.] Naval Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Martin, S. F.; Panasenco, O.] Helio Res, La Crescenta, CA 91214 USA.
RP Sheeley, NR (reprint author), Naval Res Lab, Div Space Sci, Washington, DC 20375 USA.
FU NASA [NNX09AG27G, NNH12CF37C]; Office of Naval Research
FX We are grateful to the AIA and HMI science teams for providing
observations from the NASA SDO spacecraft. We are also grateful to the
SECCHI science team for providing EUVI images of coronal cells and to
Nathan Rich (NRL) for his continuing help in the development of software
for observing and analyzing SOHO, STEREO, and SDO images. Also, we thank
the referee for helpful suggestions and for pointing out the interesting
asymmetry across filament channels, as described by Su et al. (2010).
One of us (N.R.S.) is pleased to acknowledge Y.- M. Wang (NRL) for a
variety of help and advice, including his suggestion that the normal
component of field be used in future numerical studies of filament
channels. NRS is also indebted to C. R. Devore (NASA/GSFC) and S. K.
Antiochos (NASA/GSFC) for useful discussions of force-free fields. O. P.
is grateful to M. Velli (JPL) for pointing out that coronal cells in a
filament channel follow the pattern of chromospheric fibrils. O.P. and
S.F.M. acknowledge support from NASA grant NNX09AG27G. S.F.M. also
acknowledges the subcontract between Helio Research and Predictive
Science under the NASA grant NNH12CF37C to Predictive Science, Inc.
N.R.S. and H.P.W. acknowledge financial support from NASA and the Office
of Naval Research.
NR 42
TC 4
Z9 4
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 AUG 1
PY 2013
VL 772
IS 2
AR 88
DI 10.1088/0004-637X/772/2/88
PG 11
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 186EL
UT WOS:000322024700010
ER
PT J
AU Brooks, DH
Warren, HP
Ugarte-Urra, I
Winebarger, AR
AF Brooks, David H.
Warren, Harry P.
Ugarte-Urra, Ignacio
Winebarger, Amy R.
TI HIGH SPATIAL RESOLUTION OBSERVATIONS OF LOOPS IN THE SOLAR CORONA
SO ASTROPHYSICAL JOURNAL LETTERS
LA English
DT Article
DE magnetic fields; Sun: corona; Sun: UV radiation
ID ACTIVE-REGION LOOPS; TRANSITION-REGION; EXPLORER; TRACE; HINODE
AB Understanding how the solar corona is structured is of fundamental importance to determine how the Sun's upper atmosphere is heated to high temperatures. Recent spectroscopic studies have suggested that an instrument with a spatial resolution of 200 km or better is necessary to resolve coronal loops. The High Resolution Coronal Imager (Hi-C) achieved this performance on a rocket flight in 2012 July. We use Hi-C data to measure the Gaussian widths of 91 loops observed in the solar corona and find a distribution that peaks at about 270 km. We also use Atmospheric Imaging Assembly data for a subset of these loops and find temperature distributions that are generally very narrow. These observations provide further evidence that loops in the solar corona are often structured at a scale of several hundred kilometers, well above the spatial scale of many proposed physical mechanisms.
C1 [Brooks, David H.; Ugarte-Urra, Ignacio] George Mason Univ, Coll Sci, Fairfax, VA 22030 USA.
[Warren, Harry P.] Naval Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Winebarger, Amy R.] NASA, George C Marshall Space Flight Ctr, Huntsville, AL 35812 USA.
RP Brooks, DH (reprint author), ISAS JAXA, Hinode Team, Chuo Ku, 3-1-1 Yoshinodai, Sagamihara, Kanagawa 2525210, Japan.
OI Ugarte-Urra, Ignacio/0000-0001-5503-0491
FU NASA Hinode program; Naval Research Laboratory
FX We acknowledge the High resolution Coronal Imager instrument team for
making the flight data publicly available. MSFC/NASA led the mission and
partners include the Smithsonian Astrophysical Observatory in Cambridge,
Massachusetts; Lockheed Martin's Solar Astrophysical Laboratory in
PaloAlto, California; the University of Central Lancashire in
Lancashire, England; and the Lebedev Physical Institute of the Russian
Academy of Sciences in Moscow. This work was performed under contract
with the Naval Research Laboratory and was funded by the NASA Hinode
program. 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 co-operation
with ESA and NSC (Norway).
NR 19
TC 29
Z9 29
U1 0
U2 1
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 2041-8205
J9 ASTROPHYS J LETT
JI Astrophys. J. Lett.
PD AUG 1
PY 2013
VL 772
IS 2
AR L19
DI 10.1088/2041-8205/772/2/L19
PG 5
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 186CR
UT WOS:000322020000006
ER
PT J
AU Martinelli, SL
AF Martinelli, Sheri L.
TI Numerical Boundary Conditions for Specular Reflection in a
Level-Sets-Based Wavefront Propagation Method
SO COMMUNICATIONS IN COMPUTATIONAL PHYSICS
LA English
DT Article
DE Boundary conditions; reflection; level set method; wavefront methods;
high-frequency acoustic propagation; WENO
ID GEOMETRIC OPTICS; STABILITY; FRAMEWORK; SCHEMES
AB We study the simulation of specular reflection in a level set method implementation for wavefront propagation in high frequency acoustics using WENO spatial operators. To implement WENO efficiently and maintain convergence rate, a rectangular grid is used over the physical space. When the physical domain does not conform to the rectangular grid, appropriate boundary conditions to represent reflection must be derived to apply at grid locations that are not coincident with the reflecting boundary. A related problem is the extraction of the normal vectors to the boundary, which are required to formulate the reflection condition. A separate level set method is applied to pre-compute the boundary normals which are then stored for use in the wavefront method. Two approaches to handling the reflection boundary condition are proposed and studied: one uses an approximation to the boundary location, and the other uses a local reflection principle. The second method is shown to produce superior results.
C1 [Martinelli, Sheri L.] Naval Undersea Warfare Ctr, Torpedo Syst Dept, Newport, RI 02841 USA.
[Martinelli, Sheri L.] Brown Univ, Div Appl Math, Providence, RI 02912 USA.
RP Martinelli, SL (reprint author), Naval Undersea Warfare Ctr, Torpedo Syst Dept, 1176 Howell St, Newport, RI 02841 USA.
EM sheri_martinelli@alumni.brown.edu
FU Science, Mathematics, And Research for Transformation (SMART) program
FX The author would like to thank Dr. Drumheller and Dr. Soukup of ONR for
continued support of this program. This work is also partially funded by
the Science, Mathematics, And Research for Transformation (SMART)
program. Additionally, I wish to thank Dr. Jan Hesthaven of Brown
University for his technical oversight and advice.
NR 21
TC 2
Z9 2
U1 1
U2 1
PU GLOBAL SCIENCE PRESS
PI WANCHAI
PA ROOM 3208, CENTRAL PLAZA, 18 HARBOUR RD, WANCHAI, HONG KONG 00000,
PEOPLES R CHINA
SN 1815-2406
J9 COMMUN COMPUT PHYS
JI Commun. Comput. Phys.
PD AUG
PY 2013
VL 14
IS 2
BP 509
EP 536
DI 10.4208/cicp.130312.301012a
PG 28
WC Physics, Mathematical
SC Physics
GA 186TL
UT WOS:000322068200013
ER
PT J
AU Urick, VJ
McKinney, JD
Diehl, JF
Williams, KJ
AF Urick, Vincent J.
McKinney, Jason D.
Diehl, John F.
Williams, Keith J.
TI Equations for Two-Tone Analog Optical Phase Modulation With an
Asymmetric Interferometer
SO IEEE PHOTONICS TECHNOLOGY LETTERS
LA English
DT Article
DE Microwave photonics; phase modulation
ID PHOTONIC LINKS; DYNAMIC-RANGE; LINEARIZATION
AB Analytical research is presented for electro-optic phase modulation followed by an asymmetric interferometer that is used for phase-to-intensity conversion. The resulting closed-form equations quantify the performance for arbitrary interferometer bias and input radio-frequency power. Even-order distortions, very important for multi-octave applications, are analyzed. Measured data for a Mach-Zehdner interferometer (MZI) are demonstrated to agree well with the theoretical results. Photodiode-induced even-order distortion is identified as the limiting nonlinearity when the MZI is biased at quadrature.
C1 [Urick, Vincent J.; McKinney, Jason D.; Diehl, John F.; Williams, Keith J.] Naval Res Lab, Washington, DC 20375 USA.
RP Urick, VJ (reprint author), Naval Res Lab, Washington, DC 20375 USA.
EM vurick@ccs.nrl.navy.mil; jason.mckinney@nrl.navy.mil;
john.diehl@nrl.navy.mil; keith.williams@nrl.navy.mil
FU Office of Naval Research
FX Manuscript received February 25, 2013; revised April 19, 2013 and May
24, 2013; accepted June 17, 2013. Date of publication June 20, 2013;
date of current version July 17, 2013. This work was supported in part
by the Office of Naval Research. U.S. Government work not protected by
U.S. copyright.
NR 16
TC 6
Z9 6
U1 0
U2 15
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1041-1135
J9 IEEE PHOTONIC TECH L
JI IEEE Photonics Technol. Lett.
PD AUG 1
PY 2013
VL 25
IS 15
BP 1527
EP 1530
DI 10.1109/LPT.2013.2270432
PG 4
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA 188YD
UT WOS:000322232700008
ER
PT J
AU Metzgar, D
Frinder, M
Lovari, R
Toleno, D
Massire, C
Blyn, LB
Ranken, R
Carolan, HE
Hall, TA
Moore, D
Hansen, CJ
Sampath, R
Ecker, DJ
AF Metzgar, David
Frinder, Mark
Lovari, Robert
Toleno, Donna
Massire, Christian
Blyn, Lawrence B.
Ranken, Raymond
Carolan, Heather E.
Hall, Thomas A.
Moore, David
Hansen, Christian J.
Sampath, Rangarajan
Ecker, David J.
TI Broad-Spectrum Biosensor Capable of Detecting and Identifying Diverse
Bacterial and Candida Species in Blood
SO JOURNAL OF CLINICAL MICROBIOLOGY
LA English
DT Article
ID IONIZATION MASS-SPECTROMETRY; UNIVERSAL BIOSENSOR; MULTILOCUS PCR;
IDENTIFICATION; MICROBIOLOGY; SPECIMENS
AB We describe an assay which uses broad-spectrum, conserved-site PCR paired with mass spectrometry analysis of amplicons (PCR/electrospray ionization-mass spectrometry [ESI-MS]) to detect and identify diverse bacterial and Candida species in uncultured specimens. The performance of the assay was characterized using whole-blood samples spiked with low titers of 64 bacterial species and 6 Candida species representing the breadth of coverage of the assay. The assay had an average limit of detection of 100 CFU of bacteria or Candida per milliliter of blood, and all species tested yielded limits of detection between 20 and 500 CFU per milliliter. Over 99% of all detections yielded correct identifications, whether they were obtained at concentrations well above the limit of detection or at the lowest detectable concentrations. This study demonstrates the ability of broad-spectrum PCR/ESI-MS assays to detect and identify diverse organisms in complex natural matrices that contain high levels of background DNA.
C1 [Metzgar, David; Frinder, Mark; Lovari, Robert; Toleno, Donna; Massire, Christian; Blyn, Lawrence B.; Ranken, Raymond; Carolan, Heather E.; Hall, Thomas A.; Moore, David; Sampath, Rangarajan; Ecker, David J.] Ibis Biosci, Carlsbad, CA USA.
[Hansen, Christian J.] Naval Hlth Res Ctr, San Diego, CA USA.
RP Metzgar, D (reprint author), Ibis Biosci, Carlsbad, CA USA.
EM david.l.metzgar@abbott.com
NR 23
TC 15
Z9 15
U1 0
U2 15
PU AMER SOC MICROBIOLOGY
PI WASHINGTON
PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA
SN 0095-1137
J9 J CLIN MICROBIOL
JI J. Clin. Microbiol.
PD AUG
PY 2013
VL 51
IS 8
BP 2670
EP 2678
DI 10.1128/JCM.00966-13
PG 9
WC Microbiology
SC Microbiology
GA 185FO
UT WOS:000321951800028
PM 23761152
ER
PT J
AU Lambrakos, SG
AF Lambrakos, S. G.
TI Inverse Thermal Analysis of 304L Stainless Steel Laser Welds
SO JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
LA English
DT Article
DE modeling processes; stainless steels; welding
AB An inverse thermal analysis of 304L stainless steel laser welds is presented. This analysis employs a methodology that is in terms of analytical basis functions. The results of this analysis provide parametric representations of weld temperature histories that can be adopted as input data to various types of computational procedures, such as those for prediction of solid-state phase transformations. In addition, these temperature histories can be used to construct parametric-function representations for inverse thermal analysis of welds corresponding to other process parameters or welding processes whose process conditions are within similar regimes. Specific aspects of the inverse-analysis methodology employed that relevant to its understanding and further development are examined.
C1 Naval Res Lab, Mat Sci & Technol Div, Ctr Computat Mat, Washington, DC USA.
RP Lambrakos, SG (reprint author), Naval Res Lab, Mat Sci & Technol Div, Ctr Computat Mat, Code 6390, Washington, DC USA.
EM samuel.lambrakos@nrl.navy.mil
FU Naval Research Laboratory (NRL)
FX This study was supported by a Naval Research Laboratory (NRL) internal
core program.
NR 18
TC 6
Z9 6
U1 0
U2 10
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 AUG
PY 2013
VL 22
IS 8
BP 2141
EP 2147
DI 10.1007/s11665-013-0500-8
PG 7
WC Materials Science, Multidisciplinary
SC Materials Science
GA 186AG
UT WOS:000322013000002
ER
PT J
AU Knapp, KR
Knaff, JA
Sampson, CR
Riggio, GM
Schnapp, AD
AF Knapp, Kenneth R.
Knaff, John A.
Sampson, Charles R.
Riggio, Gustavo M.
Schnapp, Adam D.
TI A Pressure-Based Analysis of the Historical Western North Pacific
Tropical Cyclone Intensity Record
SO MONTHLY WEATHER REVIEW
LA English
DT Article
DE Hurricanes; typhoons; Data quality control; Databases
ID SEA-LEVEL PRESSURE; AIRCRAFT RECONNAISSANCE; DATASETS; TYPHOON; TRENDS
AB The western North Pacific Ocean is the most active tropical cyclone (TC) basin. However, recent studies are not conclusive on whether the TC activity is increasing or decreasing, at least when calculations are based on maximum sustained winds. For this study, TC minimum central pressure data are analyzed in an effort to better understand historical typhoons. Best-track pressure reports are compared with aircraft reconnaissance observations; little bias is observed. An analysis of wind and pressure relationships suggests changes in data and practices at numerous agencies over the historical record. New estimates of maximum sustained winds are calculated using recent wind-pressure relationships and parameters from International Best Track Archive for Climate Stewardship (IBTrACS) data. The result suggests potential reclassification of numerous typhoons based on these pressure-based lifetime maximum intensities. Historical documentation supports these new intensities in many cases. In short, wind reports in older best-track data are likely of low quality. The annual activity based on pressure estimates is found to be consistent with aircraft reconnaissance and between agencies; however, reconnaissance ended in the western Pacific in 1987. Since then, interagency differences in maximum wind estimates noted here and by others also exist in the minimum central pressure reports. Reconciling these recent interagency differences is further exasperated by the lack of adequate ground truth. This study suggests efforts to intercalibrate the interagency intensity estimate methods. Conducting an independent and homogeneous reanalysis of past typhoon activity is likely necessary to resolve the remaining discrepancies in typhoon intensity records.
C1 [Knapp, Kenneth R.] NOAA, Natl Climat Data Ctr, Asheville, NC USA.
[Knaff, John A.] NOAA, Ctr Satellite Applicat & Res, Ft Collins, CO USA.
[Sampson, Charles R.] Naval Res Lab, Monterey, CA USA.
[Riggio, Gustavo M.; Schnapp, Adam D.] Univ N Carolina, Asheville, NC 28804 USA.
RP Knapp, KR (reprint author), 151 Patton Ave, Asheville, NC 28801 USA.
EM ken.knapp@noaa.gov
RI Knaff, John /F-5599-2010; Knapp, Kenneth/E-9817-2011
OI Knaff, John /0000-0003-0427-1409;
NR 55
TC 12
Z9 12
U1 0
U2 18
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 AUG
PY 2013
VL 141
IS 8
BP 2611
EP 2631
DI 10.1175/MWR-D-12-00323.1
PG 21
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 188VR
UT WOS:000322225200003
ER
PT J
AU Yang, YT
Kuo, HC
Hendricks, EA
Peng, MS
AF Yang, Yi-Ting
Kuo, Hung-Chi
Hendricks, Eric A.
Peng, Melinda S.
TI Structural and Intensity Changes of Concentric Eyewall Typhoons in the
Western North Pacific Basin
SO MONTHLY WEATHER REVIEW
LA English
DT Article
DE Hurricanes; typhoons; Satellite observations
ID TROPICAL CYCLONE INTENSITY; PREDICTION SCHEME SHIPS; SECONDARY WIND
MAXIMA; VORTEX ROSSBY-WAVES; RAPID FILAMENTATION; HURRICANE GILBERT;
SATELLITE IMAGERY; EVOLUTION; DYNAMICS; EYE
AB An objective method is developed to identify concentric eyewalls (CEs) for typhoons using passive microwave satellite imagery from 1997 to 2011 in the western North Pacific basin. Three CE types are identified: a CE with an eyewall replacement cycle (ERC; 37 cases), a CE with no replacement cycle (NRC; 17 cases), and a CE that is maintained for an extended period (CEM; 16 cases). The inner eyewall (outer eyewall) of the ERC (NRC) type dissipates within 20 h after CE formation. The CEM type has its CE structure maintained for more than 20 h (mean duration time is 31 h). Structural and intensity changes of CE typhoons are demonstrated using a T-Vmax diagram (where T is the brightness temperature and Vmax is the best-track estimated intensity) for a time sequence of the intensity and convective activity (CA) relationship. While the intensity of typhoons in the ERC and CEM cases weakens after CE formation, the CA is maintained or increases. In contrast, the CA weakens in the NRC cases. The NRC (CEM) cases typically have fast (slow) northward translational speeds and encounter large (small) vertical shear and low (high) sea surface temperatures. The CEM cases have a relatively high intensity (63 m s(-1)), and the moat size (61 km) and outer eyewall width (70 km) are approximately 50% larger than the other two categories. Both the internal dynamics and environmental conditions are important in the CEM cases, while the NRC cases are heavily influenced by the environment. The ERC cases may be dominated by the internal dynamics because of more uniform environmental conditions.
C1 [Yang, Yi-Ting; Kuo, Hung-Chi] Natl Taiwan Univ, Dept Atmospher Sci, Taipei 10617, Taiwan.
[Hendricks, Eric A.; Peng, Melinda S.] Naval Res Lab, Monterey, CA USA.
RP Kuo, HC (reprint author), Natl Taiwan Univ, Dept Atmospher Sci, 1,Sec 4,Roosevelt Rd, Taipei 10617, Taiwan.
EM kuo@as.ntu.edu.tw
OI KUO, HUNG-CHI/0000-0001-9102-5104
FU Taiwan's National Research Council [NSC101-2625-M- 002-010,
NSC100-2111-M-002-004-MY3, NSC100-2628- M-002-019,
NSC98-2745-M-002-008-MY3]; National Taiwan University [10R-70604-1,
101R-70604-1]; Taida Institute for Mathematical Sciences [101R891404];
U.S. Office of Naval Research NICOP [N62909-11-1-7096]
FX We thank Drs. Ching-Hwan Liu and Chih-Pei Chang for their original
TB-color switch code and suggestions. We thank Dr. M. DeMaria for
providing the Statistical Typhoon Intensity Prediction Scheme (STIPS)
data. The satellite microwave images were made available by the Naval
Research Laboratory Marine Meteorology Division in Monterey, California.
We also thank Wayne Schubert for helpful suggestion for CE determination
and Robert G. Fovell for his advice and comments. The authors thank
Jonathan Vigh and two anonymous reviewers for their very helpful
comments. This research was supported by Taiwan's National Research
Council through Grants NSC101-2625M- 002-010, NSC100-2111-M-002-004-MY3,
NSC1002628- M-002-019, and NSC98-2745-M-002-008-MY3 to National Taiwan
University; Grants 10R-70604-1 and 101R-70604-1 from the National Taiwan
University; Grant 101R891404 from Taida Institute for Mathematical
Sciences; and by the U.S. Office of Naval Research NICOP Grant
N62909-11-1-7096.
NR 50
TC 13
Z9 13
U1 2
U2 15
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 AUG
PY 2013
VL 141
IS 8
BP 2632
EP 2648
DI 10.1175/MWR-D-12-00251.1
PG 17
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 188VR
UT WOS:000322225200004
ER
PT J
AU Kuhl, DD
Rosmond, TE
Bishop, CH
McLay, J
Baker, NL
AF Kuhl, David D.
Rosmond, Thomas E.
Bishop, Craig H.
McLay, Justin
Baker, Nancy L.
TI Comparison of Hybrid Ensemble/4DVar and 4DVar within the NAVDAS-AR Data
Assimilation Framework
SO MONTHLY WEATHER REVIEW
LA English
DT Article
DE Kalman filters; Variational analysis; Ensembles; Data assimilation;
Numerical weather prediction; forecasting
ID VARIATIONAL DATA ASSIMILATION; ANALYSIS PERTURBATION SCHEME; WEATHER
PREDICTION MODEL; KALMAN FILTER; REAL OBSERVATIONS; FORMULATION; ERROR;
NCEP; TRANSFORM; E4DVAR
AB The effect on weather forecast performance of incorporating ensemble covariances into the initial covariance model of the four-dimensional variational data assimilation (4D-Var) Naval Research Laboratory Atmospheric Variational Data Assimilation System-Accelerated Representer (NAVDAS-AR) is investigated. This NAVDAS-AR-hybrid scheme linearly combines the static NAVDAS-AR initial background error covariance with a covariance derived from an 80-member flow-dependent ensemble. The ensemble members are generated using the ensemble transform technique with a (three-dimensional variational data assimilation) 3D-Var-based estimate of analysis error variance. The ensemble covariances are localized using an efficient algorithm enabled via a separable formulation of the localization matrix. The authors describe the development and testing of this scheme, which allows for assimilation experiments using differing linear combinations of the static and flow-dependent background error covariances. The tests are performed for two months of summer and two months of winter using operational model resolution and the operational observational dataset, which is dominated by satellite observations. Results show that the hybrid mode data assimilation scheme significantly reduces the forecast error across a wide range of variables and regions. The improvements were particularly pronounced for tropical winds. The verification against radiosondes showed a greater than 0.5% reduction in vector wind RMS differences in areas of statistical significance. The verification against self-analysis showed a greater than 1% reduction from verifying against analyses between 2- and 5-day lead time at all eight vertical levels examined in areas of statistical significance. Using the Navy's summary of verification results, the Navy Operational Global Atmospheric Prediction System (NOGAPS) scorecard, the improvements resulted in a score (+1) that justifies a major system upgrade.
C1 [Kuhl, David D.] Naval Res Lab, Washington, DC 20375 USA.
[Rosmond, Thomas E.] SAIC, Forks, WA USA.
[Bishop, Craig H.; McLay, Justin; Baker, Nancy L.] Naval Res Lab, Monterey, CA USA.
RP Kuhl, DD (reprint author), Naval Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM david.kuhl@nrl.navy.mil
FU National Research Council Research postdoctoral fellowship at the Naval
Research Laboratory, Washington, D. C.; NRL Jerome Karl Fellowship
award; Office of Naval Research [0601153N, BE033-03-45]; NOPP
[0602435N]; NRL [0601153N, 0602435N]; [PMW-120]
FX We thank all those people responsible for the development of NAVDAS-AR,
in particular, we thank the late Roger Daley who first formulated and
initiated the development of NAVDAS-AR. We would also like to thank
Liang Xu who was the PI of the project that ultimately led to the
transition of NAVDAS-AR into operations. Boon Chua, Tim Hogan, Ben
Ruston, James Goerss, and Pat Pauley also made major contributions to
NAVDAS-AR. This research was started while D. D. Kuhl held a National
Research Council Research postdoctoral fellowship at the Naval Research
Laboratory, Washington, D. C., and continued during his NRL Jerome Karl
Fellowship award. T. Rosmond acknowledges support from PMW-120 under
Program Element 0603207N. C. H. Bishop acknowledges support from Office
of Naval Research base funding via Program Element 0601153N, Task
BE033-03-45, and NOPP funding via Program Element 0602435N. NAVDAS-AR
was originally developed with ONR and PMW-120 funding under NRL base
Program Elements 0601153N and 0602435N.
NR 34
TC 32
Z9 32
U1 3
U2 16
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 AUG
PY 2013
VL 141
IS 8
BP 2740
EP 2758
DI 10.1175/MWR-D-12-00182.1
PG 19
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 188VR
UT WOS:000322225200010
ER
PT J
AU Simons, A
AF Simons, Anna
TI Crooked Lessons from the Indian Wars
SO STUDIES IN CONFLICT & TERRORISM
LA English
DT Review
AB One aim of this article is to chide the U.S. militaryand Americans overallfor not paying sufficient attention to our historic relations with American Indians. After all, American Indians are the non-Westerners we Americans should know best. A review of American Indian history can shed important light on our current encounters with tribal peoples elsewhere. At the same time, however, great care needs to be taken. Instead of just citing similaritiesas analogies lead us to dowe must also take note of differences, which we can best do by using history as a foil.
C1 Naval Postgrad Sch, Dept Def Anal, Monterey, CA 93943 USA.
RP Simons, A (reprint author), Naval Postgrad Sch, Dept Def Anal, 589 Dyer Rd, Monterey, CA 93943 USA.
EM asimons@nps.edu
NR 25
TC 0
Z9 0
U1 2
U2 5
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA
SN 1057-610X
J9 STUD CONFL TERROR
JI Stud. Confl. Terror.
PD AUG 1
PY 2013
VL 36
IS 8
BP 685
EP 697
DI 10.1080/1057610X.2013.802977
PG 13
WC International Relations; Political Science
SC International Relations; Government & Law
GA 184JO
UT WOS:000321886100005
ER
PT J
AU Neta, B
Chun, C
AF Neta, Beny
Chun, Changbum
TI On a family of Laguerre methods to find multiple roots of nonlinear
equations
SO APPLIED MATHEMATICS AND COMPUTATION
LA English
DT Article
DE Iterative methods; Order of convergence; Rational maps; Basin of
attraction; Julia sets; Conjugacy classes
ID DYNAMICS
AB There are several methods for solving a nonlinear algebraic equation having roots of a given multiplicity m. Here we compare a family of Laguerre methods of order three as well as two others of the same order and show that Euler-Cauchy's method is best. We discuss the conjugacy maps and the effect of the extraneous roots on the basins of attraction. Published by Elsevier Inc.
C1 [Neta, Beny] Naval Postgrad Sch, Dept Appl Math, Monterey, CA 93943 USA.
[Chun, Changbum] Sungkyunkwan Univ, Dept Math, Suwon 440746, South Korea.
RP Neta, B (reprint author), Naval Postgrad Sch, Dept Appl Math, Monterey, CA 93943 USA.
EM bneta@nps.edu; cbchun@skku.edu
FU Basic Science Research Program through the National Research Foundation
of Korea (NRF); Ministry of Education, Science and Technology
[2012-0007160]
FX This research was supported by Basic Science Research Program through
the National Research Foundation of Korea (NRF) funded by the Ministry
of Education, Science and Technology (2012-0007160).
NR 20
TC 20
Z9 20
U1 0
U2 4
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 AUG 1
PY 2013
VL 219
IS 23
BP 10987
EP 11004
DI 10.1016/j.amc.2013.05.002
PG 18
WC Mathematics, Applied
SC Mathematics
GA 185BW
UT WOS:000321941200017
ER
PT J
AU Reed, HM
Nichols, JM
Earls, CJ
AF Reed, H. M.
Nichols, J. M.
Earls, C. J.
TI A modified differential evolution algorithm for damage identification in
submerged shell structures
SO MECHANICAL SYSTEMS AND SIGNAL PROCESSING
LA English
DT Article
DE Differential evolution; Structural damage identification; Maximum
likelihood estimates
ID OPTIMIZATION
AB Obtaining good estimates of structural parameters from observed data is a particularly challenging task owing to the complex (often multi-modal) likelihood functions that often accompany such problems. As a result, sophisticated optimization routines are typically required to produce maximum likelihood estimates of the desired parameters. Evolutionary algorithms comprise one such approach, whereby nature-inspired mutation and crossover operations allow the sensible exploration of even multi-modal functions, in search of a global maximum. The challenge, of course, is to balance broad coverage in parameter space with the speed required to obtain such estimates. This work focuses directly on this problem by proposing a modified version of the Differential Evolution algorithm. The idea is to adjust both mutation and cross-over rates, during the optimization, in a manner that increases the convergence rate to the desired solution. Performance is demonstrated on the challenging problem of identifying imperfections in submerged shell structures. (C) 2013 Elsevier Ltd. All rights reserved.
C1 [Reed, H. M.; Earls, C. J.] Cornell Univ, Sch Civil & Environm Engn, Ithaca, NY 14850 USA.
[Nichols, J. M.] USN, Res Lab, Washington, DC 20375 USA.
RP Reed, HM (reprint author), Cornell Univ, Sch Civil & Environm Engn, Ithaca, NY 14850 USA.
EM hmr6@cornell.edu
FU Office of Naval Research, Division 331, Ship System and Engineering
Research [N0001412-110024, N0001411-WX20896]
FX The authors acknowledge the Office of Naval Research, Division 331, Ship
System and Engineering Research, for their support of this work through
Grant N0001412-110024 and contract N0001411-WX20896. The authors would
also like to thank Dr. Paul Hess of Division 331 for his many helpful
discussions.
NR 24
TC 8
Z9 9
U1 0
U2 10
PU ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
PI LONDON
PA 24-28 OVAL RD, LONDON NW1 7DX, ENGLAND
SN 0888-3270
J9 MECH SYST SIGNAL PR
JI Mech. Syst. Signal Proc.
PD AUG-SEP
PY 2013
VL 39
IS 1-2
BP 396
EP 408
DI 10.1016/j.ymssp.2013.02.018
PG 13
WC Engineering, Mechanical
SC Engineering
GA 183FY
UT WOS:000321801000028
ER
PT J
AU Esposito, JM
AF Esposito, Joel M.
TI Conditional Density Growth (CDG) model: a simplified model of RRT
coverage for kinematic systems
SO ROBOTICA
LA English
DT Article
DE Path planning for manipulators; Motion control; Motion planning;
Randomized methods
ID PROBABILISTIC ROADMAPS; PATH
AB It has been shown before that the Rapidly Exploring Random Tree (RRT) algorithm is probabilistically and resolution complete; and that the probability of finding a particular solution path can be related to the number of nodes. However, little analysis exists on the rate at which the tree covers the configuration space. In this paper, we present a stochastic difference equation which models how the tree covers the configuration space as a function of the number of nodes in the tree. Using two simplifying assumptions, appropriate for holonomic, kinematic systems in expansive configuration spaces, we derive closed-form solutions for the expected value and variance of configuration space coverage, which only depend on two easily computable parameters. Using a grid-based coverage measurement, we present experimental evidence supporting this model across a range of dimensions, obstacle densities, and parameter choices. Collecting data from 1000 RRTs, we provide evidence that configuration space coverage concentrates tightly around the expected coverage predicted by the model; and the results of the Chi-squared test suggest that the distribution of coverage across these runs is highly Gaussian. Together these results enable one to predict the expected coverage, along with a confidence interval, after a certain number of nodes have been added to the tree. We also applied the model to an example with extremely narrow passages and to a system with non-holonomic kinematics. The expected value prediction is still qualitatively accurate; but the rate constant is reduced and the variance is higher. Overall, in addition to its theoretical value, the model may find future application as an online measure of search-progress and problem difficulty, useful for adaptive variants of the basic RRT algorithm.
C1 US Naval Acad, Dept Syst Engn, Annapolis, MD 21402 USA.
RP Esposito, JM (reprint author), US Naval Acad, Dept Syst Engn, Annapolis, MD 21402 USA.
EM esposito@usna.edu
NR 28
TC 1
Z9 1
U1 0
U2 5
PU CAMBRIDGE UNIV PRESS
PI NEW YORK
PA 32 AVENUE OF THE AMERICAS, NEW YORK, NY 10013-2473 USA
SN 0263-5747
J9 ROBOTICA
JI Robotica
PD AUG
PY 2013
VL 31
BP 733
EP 746
DI 10.1017/S0263574712000690
PN 5
PG 14
WC Robotics
SC Robotics
GA 186IR
UT WOS:000322037100005
ER
PT J
AU Harbertson, J
Grillo, M
Zimulinda, E
Murego, C
Cronan, T
May, S
Brodine, S
Sebagabo, M
Araneta, MRG
Shaffer, R
AF Harbertson, Judith
Grillo, Michael
Zimulinda, Eugene
Murego, Charles
Cronan, Terry
May, Susanne
Brodine, Stephanie
Sebagabo, Marcellin
Araneta, Maria Rosario G.
Shaffer, Richard
TI Prevalence of PTSD and depression, and associated sexual risk factors,
among male Rwanda Defense Forces military personnel
SO TROPICAL MEDICINE & INTERNATIONAL HEALTH
LA English
DT Article
DE PTSD; Depression and sexual risk in the Rwanda Defense Forces
ID POSTTRAUMATIC-STRESS-DISORDER; COMMON MENTAL-DISORDERS; ALCOHOL-ABUSE;
SOUTH-AFRICA; HEALTH; SYMPTOMS; TRAUMA; HIV/AIDS; COMBAT; WAR
AB ObjectivesTo assess depression and PTSD prevalence among the Rwanda Defense Forces (RDF) and evaluate whether sexual risk behaviour, STIs, HIV and alcohol use were significantly higher among those who screened positive.
MethodsConsenting active-duty male RDF personnel, aged 21years, completed an anonymous sexual risk survey linked to HIV rapid testing that included standardised assessments for PTSD (PCL-M), depression (CES-D) and alcohol use (AUDIT). PTSD and depression prevalence were calculated (data available for 1238 and 1120 participants, respectively), and multivariable regression analyses were conducted.
Results22.5% screened positive for depression, 4.2% for PTSD and 3.4% for both. In adjusted analyses, odds of either depression or PTSD were significantly higher in participants reporting STI symptoms (OR=2.27, 2.78, respectively) and harmful alcohol use (OR=3.13, 3.21, respectively). Sex with a high-risk sex partner, lower rank and never deploying were also significantly associated with depression in adjusted analyses.
ConclusionsNearly one-fourth of RDF participants screened positive for PTSD or depression, which impacts sexual risk behaviour, HIV acquisition risk and military readiness. Findings may extend to other deploying militaries and provide additional evidence of an association between mental health status and sexual risk behaviour. Effective mental health treatment interventions that also include alcohol use assessments, STI identification/treatment and sexual risk behaviour reduction are needed.
C1 [Harbertson, Judith; Grillo, Michael; Brodine, Stephanie; Shaffer, Richard] Naval Hlth Res Ctr, Dept Def HIV AIDS Prevent Program, San Diego, CA 92106 USA.
[Harbertson, Judith] US Mil HIV Res Program, Dept Threat Assessment & Global Epidemiol, Rockville, MD USA.
[Zimulinda, Eugene] US Embassy, Kigali, Rwanda.
[Murego, Charles; Sebagabo, Marcellin] Rwanda Def Forces, Kigali, Rwanda.
[Cronan, Terry] San Diego State Univ, Dept Psychol, San Diego, CA 92182 USA.
[May, Susanne] Univ Washington, Dept Biostat, Seattle, WA 98195 USA.
[Araneta, Maria Rosario G.] Univ Calif San Diego, Dept Family & Prevent Med, La Jolla, CA 92093 USA.
RP Harbertson, J (reprint author), Naval Hlth Res Ctr, Dept Def HIV AIDS Prevent Program, 140 Sylvester Rd, San Diego, CA 92106 USA.
EM judith.harbertson@med.navy.mil
FU Rwanda Ministry of Defense; Department of Defense HIV/AIDS Prevention
Programme
FX We thank the Rwanda Ministry of Defense for the opportunity to collect
these data and support of this study, and the RDF participants. We are
grateful to Karen Cheng for her insight and guidance during protocol
development and to Gatsinzi Valentin for his assistance with data
collection. This research was funded by the President's Emergency Plan
for AIDS Relief through the Department of Defense HIV/AIDS Prevention
Programme. The views expressed in this article are those of the authors
and do not reflect the official policy or position of the Department of
the Navy, Department of Defense or the US Government.
NR 34
TC 5
Z9 5
U1 2
U2 14
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1360-2276
J9 TROP MED INT HEALTH
JI Trop. Med. Int. Health
PD AUG
PY 2013
VL 18
IS 8
BP 925
EP 933
DI 10.1111/tmi.12129
PG 9
WC Public, Environmental & Occupational Health; Tropical Medicine
SC Public, Environmental & Occupational Health; Tropical Medicine
GA 179FB
UT WOS:000321504000003
PM 23692352
ER
PT J
AU Rohlfs, C
Sullivan, R
AF Rohlfs, Chris
Sullivan, Ryan
TI THE COST-EFFECTIVENESS OF ARMORED TACTICAL WHEELED VEHICLES FOR OVERSEAS
US ARMY OPERATIONS
SO DEFENCE AND PEACE ECONOMICS
LA English
DT Article
DE Cost-effectiveness; Tactical wheeled vehicles; US military; Value of a
statistical life
AB This study uses for official use only data on US military operations to evaluate the large-scale Army policies to replace relatively light Type 1 tactical wheeled vehicles (TWVs) with more heavily protected Type 2 variants and later to replace Type 2s with more heavily protected Type 3s. We find that Type 2 TWVs reduced fatalities at $1.1 million-$24.6 million per life saved for infantry units, with our preferred cost estimates falling below the $7.5million cost-effectiveness threshold, and did not reduce fatalities for administrative and support units. We find that replacing Type 2 with Type 3 TWVs did not appreciably reduce fatalities and was not cost-effective.
C1 [Rohlfs, Chris] Syracuse Univ, Ctr Policy Res, Syracuse, NY USA.
[Sullivan, Ryan] Naval Postgrad Sch, Def Resources Management Inst, Monterey, CA 93943 USA.
RP Sullivan, R (reprint author), Naval Postgrad Sch, 287 Halligan Hall, Monterey, CA 93943 USA.
EM rssulliv@nps.edu
OI Rohlfs, Chris/0000-0001-7714-9231
NR 19
TC 4
Z9 4
U1 0
U2 3
PU TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
SN 1024-2694
J9 DEFENCE PEACE ECON
JI Def. Peace Econ.
PD AUG 1
PY 2013
VL 24
IS 4
BP 293
EP 316
DI 10.1080/10242694.2012.723158
PG 24
WC Economics
SC Business & Economics
GA 180PP
UT WOS:000321607400001
ER
PT J
AU Nagareddy, VK
Chan, HK
Hernandez, SC
Wheeler, VD
Nyakiti, LO
Myers-Ward, RL
Eddy, CR
Goss, JP
Wright, NG
Walton, SG
Gaskill, DK
Horsfall, AB
AF Nagareddy, Venkata Karthik
Chan, Hua Khee
Hernandez, Sandra C.
Wheeler, Virginia D.
Nyakiti, Luke O.
Myers-Ward, Rachael L.
Eddy, Charles R., Jr.
Goss, Jonathan P.
Wright, Nicholas G.
Walton, Scott G.
Gaskill, D. Kurt
Horsfall, Alton B.
TI Improved Chemical Detection and Ultra-Fast Recovery Using Oxygen
Functionalized Epitaxial Graphene Sensors
SO IEEE SENSORS JOURNAL
LA English
DT Article
DE Chemical sensor; dipole moment; epitaxial graphene; functionalization;
polar protic and aprotic; 1 / f noise
ID CARBON NANOTUBES; VAPOR SENSORS; OXIDE
AB w Oxygen functionalized epitaxial graphene (OFEG) sensors are demonstrated toward the sensing of polar chemical vapors at room temperature. The electrical characteristics of the sensor show an increase in resistance upon exposure to polar protic chemicals while the resistance decreased for polar aprotic vapors The average response and recovery times of the OFEG sensor to all analyte vapors are 10 and 100 s, respectively. In comparison, non-functionalized epitaxial graphene (NFEG) sensors show similar response times as OFEG, but with extremely long recovery rates in the range of similar to 1.5-2 hours. The dipole moment of the chemical is found to have a strong impact on the magnitude of the response for both OFEG and NFEG which increased with the increasing dipole moment from 2.0 D to 4.1 D. However, OFEG exhibits significantly higher sensitivity (twofold increase) to all polar chemicals over NFEG sensors. For example, exposing OFEG to n-methyl-2-pyrrolidone vapors produces a 45% change in resistance, in comparison to a 27% resistance change displayed by NFEG sensors. The noise spectral density of NFEG follows a typical 1/f dependence upon exposure to di-methylformamide vapors but with a lower change in noise from 1 x 10(-18)A(2)/Hz to 1 x 10(-17) A(2)/Hz at 1 Hz. In contrast, OFEG displays a unique 1/f(2) behavior at lower frequency range (1-10 Hz) with a significant change to the sensor noise from 3 x 10(-18)A(2)/Hz to 2 x 10(-15) A(2)/Hz.
C1 [Nagareddy, Venkata Karthik; Chan, Hua Khee; Goss, Jonathan P.; Wright, Nicholas G.; Horsfall, Alton B.] Newcastle Univ, Sch Elect & Elect Engn, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England.
[Hernandez, Sandra C.; Wheeler, Virginia D.; Nyakiti, Luke O.; Myers-Ward, Rachael L.; Eddy, Charles R., Jr.; Walton, Scott G.; Gaskill, D. Kurt] US Naval 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.
EM v.k.nagareddy@newcastle.ac.uk; h.k.chan1@newcastle.ac.uk;
sandra.hangarter.ctr@nrl.navy.mil; virginia.wheeler@nrl.navy.mil;
luke.nyakiti.ctr@nrl.navy.mil; rachael.myers-ward@nrl.navy.mil;
chip.eddy@nrl.navy.mil; j.p.goss@ncl.ac.uk; n.g.wright@ncl.ac.uk;
scott.walton@nrl.navy.mil; kurt.gaskill@nrl.navy.mil;
alton.horsfall@newcastle.ac.uk
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 the DHPA scheme; NRC; ASEE; BAE Systems Marine;
Engineering and Physical Sciences Research Council, U.K.; U.S. Naval
Research Laboratory Base Program
FX V. K. Nagareddy and H. K. Chan acknowledge support from BAE Systems
through the DHPA scheme. S. C. Hernandez and L. O. Nyakiti are grateful
for postdoctoral support from NRC and ASEE, respectively.; This work was
supported in part by BAE Systems Marine, the Engineering and Physical
Sciences Research Council, U.K., and the U.S. Naval Research Laboratory
Base Program. The associate editor coordinating the review of this paper
and approving it for publication was Prof. Weileun Fang.
NR 36
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Z9 1
U1 3
U2 40
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 AUG
PY 2013
VL 13
IS 8
BP 2810
EP 2817
DI 10.1109/JSEN.2013.2259154
PG 8
WC Engineering, Electrical & Electronic; Instruments & Instrumentation;
Physics, Applied
SC Engineering; Instruments & Instrumentation; Physics
GA 181KI
UT WOS:000321666100001
ER
PT J
AU Allam, KA
Lim, AA
Elsherbiny, A
Bradley, JP
Kawamoto, HK
AF Allam, Karam A.
Lim, Alan A.
Elsherbiny, Ahmed
Bradley, James P.
Kawamoto, Henry K.
TI Radiation-induced craniofacial deformities: A new classification and
management algorithm
SO JOURNAL OF PLASTIC RECONSTRUCTIVE AND AESTHETIC SURGERY
LA English
DT Article
DE Radiation; Craniofacial deformities; Algorithm
ID DISTRACTION OSTEOGENESIS; HEAD; RECONSTRUCTION; IRRADIATION; GROWTH;
RHABDOMYOSARCOMA; RADIOTHERAPY; BONE
AB Little is written about the spectrum of late radiation-induced craniofacial abnormalities and the guidelines for treating these abnormalities. The clinical records of 13 patients (eight males and five females) who received childhood craniofacial radiation between birth and 11 years of age and who subsequently had reconstructive surgery were reviewed. Eleven patients had their irradiation at the age from 1 to 5 years. The other two patients received their treatment at a relatively older age (9 and 11 years). Their deformities ranged from isolated soft-tissue deficiency with no or minimal bony deficiency to cases having osseous deformities with or without soft-tissue deficiency but still the normal or near-normal craniofacial form can be obtained with surgical intervention and the outermost extreme of the deformity is the patients whose normal or near-normal craniofacial form and function cannot be regained even with much sophisticated surgeries. Our new classification is based on two factors: the tissue component of the deformity and the possibility of regaining a normal or near-normal craniofacial form and function with the planned surgical intervention. Based on this classification, a new treatment algorithm was created. (c) 2013 British Association of Plastic, Reconstructive and Aesthetic Surgeons. Published by Elsevier Ltd. All rights reserved.
C1 [Allam, Karam A.; Elsherbiny, Ahmed] Sohag Univ, Dept Plast Surg, Cleft Craniofacial Unit, Sohag 82524, Egypt.
[Lim, Alan A.] Naval Med Ctr Portsmouth, Dept Plast & Reconstruct Surg, Portsmouth, VA 23708 USA.
[Bradley, James P.; Kawamoto, Henry K.] Univ Calif Los Angeles, Med Ctr, Dept Surg, Div Plast & Reconstruct Surg, Los Angeles, CA 90024 USA.
RP Allam, KA (reprint author), Sohag Univ, Dept Plast Surg, Cleft Craniofacial Unit, Sohag 82524, Egypt.
EM allamkaram@yahoo.com
NR 19
TC 3
Z9 3
U1 0
U2 0
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 1748-6815
J9 J PLAST RECONSTR AES
JI J. Plast. Reconstr. Aesthet. Surg.
PD AUG
PY 2013
VL 66
IS 8
BP 1088
EP 1095
DI 10.1016/j.bjps.2013.04.041
PG 8
WC Surgery
SC Surgery
GA 178IM
UT WOS:000321441300017
PM 23680116
ER
PT J
AU Wollmershauser, JA
Feigelson, BN
Qadri, SB
Villalobos, GR
Hunt, M
Imam, MA
Sanghera, JS
AF Wollmershauser, J. A.
Feigelson, B. N.
Qadri, S. B.
Villalobos, G. R.
Hunt, M.
Imam, M. A.
Sanghera, J. S.
TI Transparent nanocrystalline spinel by room temperature high-pressure
compaction
SO SCRIPTA MATERIALIA
LA English
DT Article
DE High pressure; Nanoceramic; Magnesium aluminate; HPLT; Nanostructured
ceramic
ID MGAL2O4 CERAMICS; NANOCERAMICS; DIFFUSION; STRAIN; SIZE
AB The present work demonstrates that high pressures alone can initiate and drive densification in nanopowder magnesium aluminate compacts without the application of temperature. The high-pressure processed nanostructured ceramic has a Vickers hardness of 182 and transmits in the infrared and visible wavelengths. The lack of externally applied thermal energy during densification enables the exploration of room temperature diffusion processes confined to nanoparticle surfaces that result in a bulk ceramics with grain sizes equal to the powder particle size. Published by Elsevier Ltd. on behalf of Acta Materialia Inc.
C1 [Wollmershauser, J. A.; Feigelson, B. N.; Qadri, S. B.; Villalobos, G. R.; Imam, M. A.; Sanghera, J. S.] Naval Res Lab, Washington, DC 20375 USA.
[Hunt, M.] URF, Greenbelt, MD 20770 USA.
RP Wollmershauser, JA (reprint author), Naval Res Lab, Washington, DC 20375 USA.
EM james.wollmershauser@nrl.navy.mil
NR 23
TC 5
Z9 5
U1 3
U2 62
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 1359-6462
J9 SCRIPTA MATER
JI Scr. Mater.
PD AUG
PY 2013
VL 69
IS 4
BP 334
EP 337
DI 10.1016/j.scriptamat.2013.05.014
PG 4
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary;
Metallurgy & Metallurgical Engineering
SC Science & Technology - Other Topics; Materials Science; Metallurgy &
Metallurgical Engineering
GA 178CP
UT WOS:000321422000014
ER
PT J
AU Rowe, NC
Schwamm, R
Garfinkel, SL
AF Rowe, Neil C.
Schwamm, Riqui
Garfinkel, Simson L.
TI Language translation for file paths
SO DIGITAL INVESTIGATION
LA English
DT Article; Proceedings Paper
CT 13th Annual DFRWS Conference
CY AUG 05-05, 2013
CL Monterey, CA
DE Digital forensics; File paths; Machine translation; Dictionary;
Character distribution; Unicode; Naive Bayes inference
AB Forensic examiners are frequently confronted with content in languages that they do not understand, and they could benefit from machine translation into their native language. But automated translation of file paths is a difficult problem because of the minimal context for translation and the frequent mixing of multiple languages within a path. This work developed a prototype implementation of a file-path translator that first identifies the language for each directory segment of a path, and then translates to English those that are not already English nor artificial words. Brown's LA-Strings utility for language identification was tried, but its performance was found inadequate on short strings and it was supplemented with clues from dictionary lookup, Unicode character distributions for languages, country of origin, and language-related keywords. To provide better data for language inference, words used in each directory over a large corpus were aggregated for analysis. The resulting directory-language probabilities were combined with those for each path segment from dictionary lookup and character-type distributions to infer the segment's most likely language. Tests were done on a corpus of 50.1 million file paths looking for 35 different languages. Tests showed 90.4% accuracy on identifying languages of directories and 93.7% accuracy on identifying languages of directory/file segments of file paths, even after excluding 44.4% of the paths as obviously English or untranslatable. Two of seven proposed language clues were shown to impair directory-language identification. Experiments also compared three translation methods: the Systran translation tool, Google Translate, and word-for-word substitution using dictionaries. Google Translate usually performed the best, but all still made errors with European languages and a significant number of errors with Arabic and Chinese. Published by Elsevier Ltd.
C1 [Rowe, Neil C.; Schwamm, Riqui; Garfinkel, Simson L.] US Navy, Postgrad Sch, Monterey, CA 93943 USA.
RP Rowe, NC (reprint author), US Navy, Postgrad Sch, Monterey, CA 93943 USA.
EM ncrowe@nps.edu
NR 14
TC 1
Z9 1
U1 0
U2 0
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 1742-2876
EI 1873-202X
J9 DIGIT INVEST
JI Digit. Investig.
PD AUG
PY 2013
VL 10
SU S
BP S78
EP S86
DI 10.1016/j.diin.2013.06.009
PG 9
WC Computer Science, Information Systems; Computer Science,
Interdisciplinary Applications
SC Computer Science
GA AQ1VM
UT WOS:000342571600010
ER
PT J
AU Putnam, KF
Mueller, LA
Magann, EF
Thagard, A
Johnson, AM
Ounpraseuth, S
Morrison, JC
AF Putnam, Kathleen F.
Mueller, Lucus A.
Magann, Everett F.
Thagard, Andrew
Johnson, Alan M.
Ounpraseuth, Songthip
Morrison, John C.
TI Evaluating Effects of Self-Reported Domestic Physical Activity on
Pregnancy and Neonatal Outcomes in "Stay at Home" Military Wives
SO MILITARY MEDICINE
LA English
DT Article
ID MATERNAL WEIGHT-GAIN; EXERCISE; EMPLOYMENT; PATTERN
AB Objective: To determine if an association exists between daily physical activity, and pregnancy/neonatal outcomes in stay at home military wives. Methods: This is a prospective observational study of pregnant military wives who do not work outside the home. Participants completed a validated questionnaire of their daily activity from which the average energy expenditure per day (kcal/day) was calculated. Participants were grouped, according to their energy expenditure and assessed for antepartum, intrapartum, and neonatal outcomes. Results: There were 55 women (group 1) who expended <= 2,200 kcal/day, 77 expended 2,201 to 3,000 kcal/day, and 58 expended >= 3,001 kcal/day. Group 1 had the lowest maternal weight at first visit (p<0.001) and delivery (p<0.001) and highest percentage of primigravidas (p=0.002). After adjusting for key maternal characteristics, women in group 1 were more likely to develop gestational diabetes. Although not significant, the women in group 1 had more intrauterine growth restriction and preterm labor whereas group 3 had a greater risk of antepartum hemorrhage. Conclusions: Primigravida women of low weight not working are most likely to use the least energy compared to the heaviest women who use the most calories and are more likely to develop gestational diabetes.
C1 [Putnam, Kathleen F.] Old Dominion Univ, Sch Nursing, Norfolk, VA 23529 USA.
[Mueller, Lucus A.; Magann, Everett F.; Thagard, Andrew] Naval Med Ctr Portsmouth, Dept OG GYN, Portsmouth, VA 23708 USA.
[Johnson, Alan M.] Univ Arkansas, Dept Math & Biostat, Little Rock, AR 72204 USA.
[Ounpraseuth, Songthip] Univ Arkansas Med Sci, Dept Biostat, Little Rock, AR 72205 USA.
[Morrison, John C.] Univ Mississippi, Med Ctr, Dept OB GYN, Jackson, MS 39216 USA.
RP Putnam, KF (reprint author), Old Dominion Univ, Sch Nursing, 5115 Hampton Blvd, Norfolk, VA 23529 USA.
FU CIRD at the Naval Medical Center, Portsmouth, VA
FX CIRD at the Naval Medical Center, Portsmouth, VA.
NR 20
TC 0
Z9 0
U1 0
U2 2
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 AUG
PY 2013
VL 178
IS 8
BP 893
EP 898
DI 10.7205/MILMED-D-13-00045
PG 6
WC Medicine, General & Internal
SC General & Internal Medicine
GA AN7UB
UT WOS:000340805400012
PM 23929051
ER
PT J
AU Ballard, SB
Beaty, LP
Baker, SP
AF Ballard, Sarah-Blythe
Beaty, Leland P.
Baker, Susan P.
TI US commercial air tour crashes, 2000-2011: Burden, fatal risk factors,
and FIA Score validation
SO ACCIDENT ANALYSIS AND PREVENTION
LA English
DT Article
DE Commercial air tours; Air tours; Sightseeing; FIA; FIA Score
ID HELICOPTER CRASHES; GENERAL-AVIATION; AIRCRAFT; INJURY
AB Introduction: This study provides new public health data concerning the US commercial air tour industry. Risk factors for fatality in air tour crashes were analyzed to determine the value of the FIA Score in predicting fatal outcomes.
Methods: Using the Federal Aviation Administration's (FAA) General Aviation and Air Taxi Survey and National Transportation Safety Board data, the incidence of commercial air tour crashes from 2000 through 2010 was calculated. Fatality risk factors for crashes occurring from 2000 through 2011 were analyzed using regression methods. The FIA Score, Li and Baker's fatality risk index, was validated using receiver operating characteristic (ROC) curves.
Results: The industry-wide commercial air tour crash rate was 2.7 per 100,000 flight hours. The incidence rates of Part 91 and 135 commercial air tour crashes were 3.4 and 2.3 per 100,000 flight hours, respectively (relative risk [RR] 1.5, 95% confidence interval [CI] 1.1-2.1, P=0.015). Of the 152 air tour crashes that occurred from 2000 through 2011,30(20%) involved at least one fatality and, on average, 3.5 people died per fatal crash. Fatalities were associated with three major risk factors: fire (adjusted odds ratio [AOR] 5.1, 95% CI 1.5-16.7, P=0.008), instrument meteorological conditions (AOR 5.4, 95% CI 1.1-26.4, P=0.038), and off-airport location (AOR 7.2,95% CI 1.6-33.2, P=0.011). The area under the FIA Score's ROC curve was 0.79 (95% CI 0.71-0.88).
Discussion: Commercial air tour crash rates were high relative to similar commercial aviation operations. Disparities between Part 91 and 135 air tour crash rates reflect regulatory disparities that require FAA action. The FIA Score appeared to be a valid measurement of fatal risk in air tour crashes. The FIA should prioritize interventions that address the three major risk factors identified by this study. Published by Elsevier Ltd.
C1 [Ballard, Sarah-Blythe] Johns Hopkins Bloomberg Sch Publ Hlth, Dept Int Hlth, Baltimore, MD USA.
[Ballard, Sarah-Blythe] USN, Arlington, VA USA.
[Beaty, Leland P.; Baker, Susan P.] Johns Hopkins Ctr Injury Res & Policy, Baltimore, MD USA.
RP Ballard, SB (reprint author), 615 N Wolfe St,Rm 5515, Baltimore, MD 21205 USA.
EM sballard@jhsph.edu
FU FIC NIH HHS [R25 TW009340]
NR 22
TC 4
Z9 4
U1 1
U2 13
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0001-4575
J9 ACCIDENT ANAL PREV
JI Accid. Anal. Prev.
PD AUG
PY 2013
VL 57
BP 49
EP 54
DI 10.1016/j.aap.2013.03.028
PG 6
WC Ergonomics; Public, Environmental & Occupational Health; Social
Sciences, Interdisciplinary; Transportation
SC Engineering; Public, Environmental & Occupational Health; Social
Sciences - Other Topics; Transportation
GA 165KG
UT WOS:000320482200006
PM 23631935
ER
PT J
AU Springer, RM
Thomas, ME
AF Springer, Ryan M.
Thomas, Michael E.
TI Analysis and Comparison of Single Crystal and Polycrystalline Nd:YAG,
Absorption
SO IEEE JOURNAL OF QUANTUM ELECTRONICS
LA English
DT Article
DE Polycrystalline YAG; single crystal YAG; Nd:YAG; optical properties;
absorption; temperature dependent absorption
ID ND-YAG LASER; CERAMIC LASERS; POWER; NM
AB The optical properties of polycrystalline and single crystal Nd:YAG materials are reported. Materials include undoped, 1%, 1.5%, 2%, 4%, 6%, and 10% at. Nd doped polycrystalline YAG and undoped and 1% at. Nd doped single crystal YAG. The motivation of this paper is to determine the ideal material type and doping percentage gain media for use in a high energy 0.946 mu m Nd: YAG laser. Room temperature transmittance measurements for all samples are performed between the midinfrared and ultraviolet edges of absorption. From this calibrated transmittance data, an extinction coefficient and extinction cross section are calculated across the entire spectra. We determine that, for the doping percentages measured, the extinction cross section is independent of doping level. Our measured extinction cross sections are consistent with previously reported values. Temperature dependent transmittance measurements are conducted on 1% and 6% polycrystalline Nd: YAG material. A classical oscillator model for the diode pump band absorption coefficient is presented. A comparison of strengths and weaknesses of single crystal and polycrystalline is presented. This comparison reveals areas of parasitic absorption in polycrystalline YAG.
C1 [Springer, Ryan M.] Naval Air Warfare Ctr, Div Aircraft, Patuxent River, MD 20670 USA.
[Springer, Ryan M.; Thomas, Michael E.] Johns Hopkins Univ, Baltimore, MD 21218 USA.
[Thomas, Michael E.] Johns Hopkins Univ, Appl Phys Lab, Laurel, MD 20723 USA.
RP Springer, RM (reprint author), Naval Air Warfare Ctr, Div Aircraft, Patuxent River, MD 20670 USA.
EM ryan.springer@navy.mil; michael.thomas@jhuapl.edu
FU Naval Air Warfare Center, Patuxent River; Johns Hopkins University,
Applied Physics Lab
FX The authors gratefully acknowledge the Naval Air Warfare Center,
Patuxent River and Johns Hopkins University, Applied Physics Lab for
support of this research. The authors would like to acknowledge Edward
W. Ott and Jill C. La Favors of Johns Hopkins University, Applied
Physics Laboratory for performing the NIR to UV spectral transmittance
measurements.
NR 21
TC 4
Z9 4
U1 3
U2 28
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0018-9197
EI 1558-1713
J9 IEEE J QUANTUM ELECT
JI IEEE J. Quantum Electron.
PD AUG
PY 2013
VL 49
IS 8
BP 667
EP 676
DI 10.1109/JQE.2013.2269026
PG 10
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA 175EZ
UT WOS:000321214900003
ER
PT J
AU Downey, BP
Meyer, DJ
Katzer, DS
Storm, DF
Binari, SC
AF Downey, B. P.
Meyer, D. J.
Katzer, D. S.
Storm, D. F.
Binari, S. C.
TI Electrical characterization of Schottky contacts to N-polar GaN
SO SOLID-STATE ELECTRONICS
LA English
DT Article
DE GaN; N-polar; Schottky; Metal-induced gap states
ID METAL-SEMICONDUCTOR INTERFACES; CRYSTAL-POLARITY; BARRIER HEIGHTS;
DIODES; STATES; GAN(0001); CONTINUUM; MODEL; HEMTS; FACE
AB The Schottky barrier heights of several metals (Cu, Au, Pd, Ni, and Pt) to N-polar GaN were extracted using current-voltage and capacitance-voltage measurements. The dependence of barrier height on metal was found to vary linearly with the electronegativity of the metal as predicted by the metal-induced gap states (MIGS)-and-electronegativity model. However, the magnitude of the barrier heights are lower than those predicted by the MIGS model for GaN and lower than the experimentally measured barrier heights for Ga-polar GaN. It is likely that the polarization-induced charge at the N-polar GaN surface is responsible for the reduced barrier height. (C) 2013 Elsevier Ltd. All rights reserved.
C1 [Downey, B. P.; Meyer, D. J.; Katzer, D. S.; Storm, D. F.; Binari, S. C.] Naval Res Lab, Elect Sci & Technol Div, Washington, DC 20375 USA.
RP Downey, BP (reprint author), Naval Res Lab, Elect Sci & Technol Div, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM brian.downey@nrl.navy.mil
RI Katzer, D. Scott/N-7841-2013
FU Office of Naval Research
FX The authors would like to thank Neil Green for his assistance with
sample fabrication. This work was supported by the Office of Naval
Research.
NR 38
TC 3
Z9 3
U1 1
U2 39
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0038-1101
J9 SOLID STATE ELECTRON
JI Solid-State Electron.
PD AUG
PY 2013
VL 86
BP 17
EP 21
DI 10.1016/j.sse.2013.04.002
PG 5
WC Engineering, Electrical & Electronic; Physics, Applied; Physics,
Condensed Matter
SC Engineering; Physics
GA 168DT
UT WOS:000320686600004
ER
PT J
AU Craugh, LE
Kwon, YW
AF Craugh, L. E.
Kwon, Y. W.
TI Coupled finite element and cellular automata methods for analysis of
composite structures with fluid-structure interaction
SO COMPOSITE STRUCTURES
LA English
DT Article
DE Discontinuous Galerkin method; Cellular automata; Composite plates;
Fluid-structure interaction; Wave equation
ID DISCONTINUOUS GALERKIN METHODS; ELLIPTIC PROBLEMS; PENALTY PARAMETER;
ELASTICITY; FAILURE; APPROXIMATIONS; PROPAGATION; FORMULATION;
MECHANICS; FAMILY
AB This study examines multiple computational techniques to analyze dynamic responses of composite structures subject to Fluid-Structure Interaction (FSI). A plate bending finite element with displacement degrees of freedom only is developed and implemented using a Discontinuous Galerkin (DG) formulation. Because the plate elements can be stacked on top of one another like 3-D solid elements, delamination or debonding between any two layers can be modeled easily. Multiple approaches to analyzing such failure are presented and evaluated. A hybrid Finite Element-Cellular Automata (FE-CA) approach is also presented to model a fluid domain as an acoustic field using the wave equation. The coupled technique can take advantage of both methods such as computational efficiency, non-reflecting boundary representation and easy coupling with a structure with a complex shape. The FE-CA fluid model is then combined with the DG structural model to simulate fluid-structure interaction. All the computational techniques are assessed for their accuracy by comparing with analytical, experimental and other numerical solutions. Each technique addressed shows promise for flexible and accurate modeling of dynamic behaviors of damaged or undamaged laminated composite structures subject to fluid-structure interaction with moderate computational costs. Published by Elsevier Ltd.
C1 [Craugh, L. E.] USN Acad, Dept Mech Eng, Annapolis, MD 21402 USA.
[Kwon, Y. W.] USN, Dept Mech & Aero Eng, Postgrad Sch, Monterey, CA 93943 USA.
RP Kwon, YW (reprint author), USN, Dept Mech & Aero Eng, Postgrad Sch, Monterey, CA 93943 USA.
EM ywkwon@nps.edu
NR 45
TC 7
Z9 8
U1 1
U2 20
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0263-8223
J9 COMPOS STRUCT
JI Compos. Struct.
PD AUG
PY 2013
VL 102
BP 124
EP 137
DI 10.1016/j.compstruct.2013.02.021
PG 14
WC Materials Science, Composites
SC Materials Science
GA 153WX
UT WOS:000319634600012
ER
PT J
AU DiRenzo, MS
Weer, CH
Linnehan, F
AF DiRenzo, Marco S.
Weer, Christy H.
Linnehan, Frank
TI Protege career aspirations: The influence of formal e-mentor networks
and family-based role models
SO JOURNAL OF VOCATIONAL BEHAVIOR
LA English
DT Article
DE Career aspirations; E-mentoring; Youth mentoring; Mentor networks
ID SOCIAL COGNITIVE THEORY; SELF-EFFICACY; OCCUPATIONAL-STATUS;
UNDOCUMENTED IMMIGRANTS; GENDER; PERFORMANCE; SUCCESS; ONLINE;
COMMUNICATION; METAANALYSIS
AB Using longitudinal data from a nine-month e-mentoring program, we analyzed the influence of formal e-mentor networks and family-based role models on increases in both psychosocial and career-related outcomes. Findings indicate that e-mentor network relationship quality positively influenced general- and career-based self-efficacy which, in turn, enhanced the objective career aspirations of underprivileged youth. Moreover, we address both the compensatory and complementary perspectives of social capital to assess the moderating influence that access to educational role models within the family has on this process. Implications of the findings and areas for future research are discussed. Published by Elsevier Inc.
C1 [DiRenzo, Marco S.] USN, Postgrad Sch, Grad Sch Business & Publ Policy, Monterey, CA 93943 USA.
[Weer, Christy H.] Salisbury Univ, Salisbury, CT USA.
[Linnehan, Frank] Drexel Univ, Philadelphia, PA USA.
RP DiRenzo, MS (reprint author), USN, Postgrad Sch, Grad Sch Business & Publ Policy, 555 Dyer Rd, Monterey, CA 93943 USA.
EM msdirenz@nps.edu
OI DiRenzo, Marco/0000-0001-9602-2607
NR 67
TC 5
Z9 5
U1 5
U2 36
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0001-8791
J9 J VOCAT BEHAV
JI J. Vocat. Behav.
PD AUG
PY 2013
VL 83
IS 1
BP 41
EP 50
DI 10.1016/j.jvb.2013.02.007
PG 10
WC Psychology, Applied
SC Psychology
GA 145QD
UT WOS:000319031000005
ER
PT J
AU Ravets, S
Hoffman, JE
Orozco, LA
Rolston, SL
Beadie, G
Fatemi, FK
AF Ravets, S.
Hoffman, J. E.
Orozco, L. A.
Rolston, S. L.
Beadie, G.
Fatemi, F. K.
TI A low-loss photonic silica nanofiber for higher-order modes
SO OPTICS EXPRESS
LA English
DT Article
ID OPTICAL NANOFIBER; TAPERS
AB Optical nanofibers confine light to subwavelength scales, and are of interest for the design, integration, and interconnection of nanophotonic devices. Here we demonstrate high transmission (> 97%) of the first family of excited modes through a 350 nm radius fiber, by appropriate choice of the fiber and precise control of the taper geometry. We can design the nanofibers so that these modes propagate with most of their energy outside the waist region. We also present an optical setup for selectively launching these modes with less than 1% fundamental mode contamination. Our experimental results are in good agreement with simulations of the propagation. Multimode optical nanofibers expand the photonic toolbox, and may aid in the realization of a fully integrated nanoscale device for communication science, laser science or other sensing applications. (C) 2013 Optical Society of America
C1 [Ravets, S.; Hoffman, J. E.; Orozco, L. A.; Rolston, S. L.] Univ Maryland, Dept Phys, Joint Quantum Inst, College Pk, MD 20742 USA.
[Ravets, S.; Hoffman, J. E.; Orozco, L. A.; Rolston, S. L.] NIST, College Pk, MD 20742 USA.
[Ravets, S.] Univ Paris Sud, CNRS, Inst Opt, Lab Charles Fabry, F-91127 Palaiseau, France.
[Beadie, G.; Fatemi, F. K.] Naval Res Lab, Div Opt Sci, Washington, DC 20375 USA.
RP Orozco, LA (reprint author), Univ Maryland, Dept Phys, Joint Quantum Inst, College Pk, MD 20742 USA.
EM lorozco@umd.edu
RI rolston, steven/L-5175-2013
OI rolston, steven/0000-0003-1671-4190
FU ONR; ARO Atomtronics MURI; DARPA; NSF through the PFC at JQI; Fulbright
Foundation
FX This work was funded by ONR, the ARO Atomtronics MURI, DARPA, and the
NSF through the PFC at JQI. S. R. acknowledges support from the
Fulbright Foundation.
NR 22
TC 16
Z9 16
U1 2
U2 43
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 JUL 29
PY 2013
VL 21
IS 15
BP 18325
EP 18335
DI 10.1364/OE.21.018325
PG 11
WC Optics
SC Optics
GA 190UJ
UT WOS:000322366300093
PM 23938704
ER
PT J
AU Mlynczak, MG
Hunt, LA
Marshall, BT
Mertens, CJ
Russell, JM
Siskind, D
Thompson, RE
Gordley, LL
AF Mlynczak, Martin G.
Hunt, Linda A.
Marshall, B. Thomas
Mertens, Christopher J.
Russell, James M., III
Siskind, David
Thompson, R. Earl
Gordley, Larry L.
TI Radiative constraints on the minimum atomic oxygen concentration in the
mesopause region
SO GEOPHYSICAL RESEARCH LETTERS
LA English
DT Article
DE atomic oxygen; mesopause region; radiative constraints; energetics
ID ATMOSPHERE
AB Atomic oxygen [O] plays a fundamental role in the photochemistry and energy budget of the terrestrial mesopause region (80-100km). [O] is difficult to measure directly and is typically inferred at night from measurements of hydroxyl [OH] or molecular oxygen [O-2] emissions. During the day, measurements of ozone [O-3] concentration are used to infer [O]. These inferences carry significant uncertainties [Mlynczak et al., 2013a]. Recently, Mlynczak et al. [2013b] have used energy balance principles to set an upper limit on the annual global mean [O] concentration in the mesopause region. In this paper, we use night measurements of OH emission to set a lower limit on the global annual mean atomic oxygen concentration. These independent, radiatively constrained values of the maximum and minimum atomic oxygen concentration also place constraints on the magnitude of dynamical processes in the annual global mean energy budget of the mesopause region.
C1 [Mlynczak, Martin G.; Mertens, Christopher J.] NASA, Langley Res Ctr, Hampton, VA 23681 USA.
[Hunt, Linda A.] 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, Ctr Atmospher Sci, Hampton, VA 23668 USA.
[Siskind, David] Naval Res Lab, Washington, DC USA.
RP Mlynczak, MG (reprint author), NASA, Langley Res Ctr, Mail Stop 420, Hampton, VA 23681 USA.
EM m.g.mlynczak@nasa.gov
FU NASA TIMED project; NASA Living with a Star program
FX The authors gratefully acknowledge support from the NASA TIMED project
and the NASA Living with a Star program.
NR 8
TC 3
Z9 3
U1 1
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 JUL 28
PY 2013
VL 40
IS 14
BP 3777
EP 3780
DI 10.1002/grl.50725
PG 4
WC Geosciences, Multidisciplinary
SC Geology
GA 204TP
UT WOS:000323392700052
ER
PT J
AU Iliopoulos, A
Michopoulos, JG
AF Iliopoulos, Athanasios
Michopoulos, John G.
TI Direct strain tensor approximation for full-field strain measurement
methods
SO INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING
LA English
DT Article
DE full field; direct strain; digital imaging; MRG; DSI; DIC; meshless;
moving least squares
ID DEFORMATION FUNCTION; IMAGE CORRELATION; MESHLESS METHODS; DISPLACEMENT
AB Full-field strain measurement techniques are based on computing the spatial derivatives of numerical or functional approximations of the underlying displacement fields extracted from digital imaging methods. These methods implicitly assume that the medium satisfies the strain compatibility conditions, which are only true in the case of a continuum body that remains continuum throughout its deformation history. In the present work, we introduce a method that can be used to calculate the strain components directly from typical digital imaging data, without the need of the continuum hypothesis and the need for displacement field differentiation. Thus, it enables the measurement of strain fields from imaged surfaces that may or may not contain discontinuities. Numerical comparisons are performed on the basis synthetic data produced from an analytical solution for an elastically orthotropic open-hole domain in tension. For performance comparison purposes, the mean absolute error distributions are calculated for the cases of both the traditional meshless random grid method, and the direct strain method introduced herein. It is established that the more refined representation of strain provided by our present approach is more accurate everywhere in the domain, but most importantly, near its boundaries. Published 2013. This article is a US Government work and is in the public domain in the USA.
C1 [Iliopoulos, Athanasios] George Mason Univ, Computat Mat Sci Ctr, Washington, DC USA.
[Iliopoulos, Athanasios] Naval Res Lab, Washington, DC 20375 USA.
[Michopoulos, John G.] Naval Res Lab, Code Computat Multiphys Syst Lab 6394, Ctr Computat Mat Sci, Washington, DC 20375 USA.
RP Michopoulos, JG (reprint author), Naval Res Lab, Code Computat Multiphys Syst Lab 6394, Ctr Computat Mat Sci, Washington, DC 20375 USA.
EM john.michopoulos@nrl.navy.mil
RI Michopoulos, John/D-6704-2016
OI Michopoulos, John/0000-0001-7004-6838
FU Office of Naval Research [N0001412WX21199]; Naval Research Laboratory
FX The authors acknowledge the support of the Office of Naval Research
under contract N0001412WX21199 and the 6.1 core funding by the Naval
Research Laboratory.
NR 36
TC 11
Z9 11
U1 0
U2 3
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0029-5981
J9 INT J NUMER METH ENG
JI Int. J. Numer. Methods Eng.
PD JUL 27
PY 2013
VL 95
IS 4
BP 313
EP 330
DI 10.1002/nme.4509
PG 18
WC Engineering, Multidisciplinary; Mathematics, Interdisciplinary
Applications
SC Engineering; Mathematics
GA 171QF
UT WOS:000320943400003
ER
PT J
AU Glinka, YD
Erementchouk, M
Dass, CK
Leuenberger, MN
Bracker, AS
Li, XQ
AF Glinka, Yuri D.
Erementchouk, Mikhail
Dass, Chandriker K.
Leuenberger, Michael N.
Bracker, Allan S.
Li, Xiaoqin
TI Non-local coherent coupling between excitons in a disordered quantum
well
SO NEW JOURNAL OF PHYSICS
LA English
DT Article
ID FOURIER-TRANSFORM SPECTROSCOPY; NONLINEAR-OPTICAL RESPONSE; HEAVY HOLE
EXCITONS; 4-WAVE-MIXING SPECTROSCOPY; ENERGY-TRANSFER; LIGHT HOLE; GAAS;
SEMICONDUCTORS; BEATS; EXCITATION
AB We investigated coherent coupling among multiple exciton resonances formed in a single disordered quantum well using the powerful electronic two-dimensional Fourier transform spectroscopy. Our experiment revealed clear signatures of non-local coherent coupling between the heavy-hole and light-hole excitons residing in regions that differ in thickness by one atomic layer. The experimental observation is qualitatively explained by spatial overlap between exciton linear response functions calculated within a single defect model.
C1 [Glinka, Yuri D.; Dass, Chandriker K.; Li, Xiaoqin] Univ Texas Austin, Dept Phys, Austin, TX 78712 USA.
[Glinka, Yuri D.] Natl Acad Sci Ukraine, Inst Phys, UA-03028 Kiev, Ukraine.
[Erementchouk, Mikhail; Leuenberger, Michael N.] Univ Cent Florida, NanoSci Technol Ctr, Orlando, FL 32826 USA.
[Erementchouk, Mikhail; Leuenberger, Michael N.] Univ Cent Florida, Dept Phys, Orlando, FL 32826 USA.
[Bracker, Allan S.] Naval Res Lab, Washington, DC 20375 USA.
RP Li, XQ (reprint author), Univ Texas Austin, Dept Phys, Austin, TX 78712 USA.
EM elaineli@physics.utexas.edu
RI Leuenberger, Michael/L-4501-2013;
OI Erementchouk, Mikhail/0000-0002-4603-1836
FU NSF [DMR-0747822, ECCS-0901784, ECCS-1128597]; Welch Foundation
[F-1662]; Alfred P Sloan Foundation; AFOSR [FA9550-09-1-0450];
[ARO-W911NF-08-1-0348]
FX We gratefully acknowledge financial support from the following sources:
NSF DMR-0747822, Welch Foundation F-1662, ARO-W911NF-08-1-0348 and the
Alfred P Sloan Foundation. MNL acknowledges support from NSF (grant no.
ECCS-0901784), AFOSR (grant no. FA9550-09-1-0450) and NSF (grant no.
ECCS-1128597).
NR 46
TC 2
Z9 2
U1 1
U2 10
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 1367-2630
J9 NEW J PHYS
JI New J. Phys.
PD JUL 26
PY 2013
VL 15
AR 075026
DI 10.1088/1367-2630/15/7/075026
PG 12
WC Physics, Multidisciplinary
SC Physics
GA 190BD
UT WOS:000322311100003
ER
PT J
AU Leski, TA
Vora, GJ
Barrows, BR
Pimentel, G
House, BL
Nicklasson, M
Wasfy, M
Abdel-Maksoud, M
Taitt, CR
AF Leski, Tomasz A.
Vora, Gary J.
Barrows, Brian R.
Pimentel, Guillermo
House, Brent L.
Nicklasson, Matilda
Wasfy, Momtaz
Abdel-Maksoud, Mohamed
Taitt, Chris Rowe
TI Molecular Characterization of Multidrug Resistant Hospital Isolates
Using the Antimicrobial Resistance Determinant Microarray
SO PLOS ONE
LA English
DT Article
ID SPECTRUM-BETA-LACTAMASE; GRAM-NEGATIVE BACTERIA; KLEBSIELLA-PNEUMONIAE;
ESCHERICHIA-COLI; ACINETOBACTER-BAUMANNII; STAPHYLOCOCCUS-AUREUS; DNA
MICROARRAY; GENETIC-BASIS; EGYPT; ENTEROBACTERIACEAE
AB Molecular methods that enable the detection of antimicrobial resistance determinants are critical surveillance tools that are necessary to aid in curbing the spread of antibiotic resistance. In this study, we describe the use of the Antimicrobial Resistance Determinant Microarray (ARDM) that targets 239 unique genes that confer resistance to 12 classes of antimicrobial compounds, quaternary amines and streptothricin for the determination of multidrug resistance (MDR) gene profiles. Fourteen reference MDR strains, which either were genome, sequenced or possessed well characterized drug resistance profiles were used to optimize detection algorithms and threshold criteria to ensure the microarray's effectiveness for unbiased characterization of antimicrobial resistance determinants in MDR strains. The subsequent testing of Acinetobacter baumannii, Escherichia coli and Klebsiella pneumoniae hospital isolates revealed the presence of several antibiotic resistance genes [e.g. belonging to TEM, SHV, OXA and CTX-M classes (and OXA and CTX-M subfamilies) of beta-lactamases] and their assemblages which were confirmed by PCR and DNA sequence analysis. When combined with results from the reference strains, similar to 25% of the ARDM content was confirmed as effective for representing allelic content from both Gram-positive and -negative species. Taken together, the ARDM identified MDR assemblages containing six to 18 unique resistance genes in each strain tested, demonstrating its utility as a powerful tool for molecular epidemiological investigations of antimicrobial resistance in clinically relevant bacterial pathogens.
C1 [Leski, Tomasz A.; Vora, Gary J.; Taitt, Chris Rowe] US Naval Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC USA.
[Barrows, Brian R.] US Naval Res Lab, Natl Res Council, Washington, DC USA.
[Pimentel, Guillermo; House, Brent L.; Nicklasson, Matilda; Wasfy, Momtaz; Abdel-Maksoud, Mohamed] US Naval Med Res Unit 3, Cairo, Egypt.
RP Leski, TA (reprint author), US Naval Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC USA.
EM tomasz.leski@nrl.navy.mil
RI Leski, Tomasz/K-6916-2013;
OI Leski, Tomasz/0000-0001-7688-9887; Vora, Gary/0000-0002-0657-8597
FU Defense Medical Research and Development Program Intramural Applied
Research and Advanced Technology Development Award
FX This work was supported by a Defense Medical Research and Development
Program Intramural Applied Research and Advanced Technology Development
Award. The funders had no role in study design, data collection and
analysis, decision to publish, or preparation of the manuscript.
NR 68
TC 3
Z9 3
U1 1
U2 25
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 JUL 25
PY 2013
VL 8
IS 7
AR e69507
DI 10.1371/journal.pone.0069507
PG 12
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 191SQ
UT WOS:000322433300044
PM 23936031
ER
PT J
AU Panayotov, DA
DeSario, PA
Pietron, JJ
Brintlinger, TH
Szymczak, LC
Rolison, DR
Morris, JR
AF Panayotov, Dimitar A.
DeSario, Paul A.
Pietron, Jeremy J.
Brintlinger, Todd H.
Szymczak, Lindsey C.
Rolison, Debra R.
Morris, John R.
TI Ultraviolet and Visible Photochemistry of Methanol at 3D Mesoporous
Networks: TiO2 and Au-TiO2
SO JOURNAL OF PHYSICAL CHEMISTRY C
LA English
DT Article
ID INDUCED CHARGE SEPARATION; SURFACE-PLASMON RESONANCE; TEMPERATURE CO
ADSORPTION; SUM-FREQUENCY GENERATION; WARFARE AGENT SIMULANT; GOLD
NANOPARTICLES; TITANIUM-DIOXIDE; TIO2(110) SURFACE; CARBON-MONOXIDE;
RUTILE TIO2
AB Comparison of methanol photochemistry at three-dimensionally (3D) networked aerogels of TiO2 or Au-TiO2 reveals that incorporated Au nanoparticles strongly sensitize the oxide nanoarchitecture to visible light. Methanol dissociatively adsorbs at the surfaces of TiO2 and Au TiO2 aerogels under dark, high-vacuum conditions. Upon irradiation of either ultraporous material with broadband UV light under anaerobic conditions, adsorbed methoxy groups act as hole-traps and extend conduction-band and shallow-trapped electron lifetimes. A higher excited-state electron density arises for UV-irradiated TiO2 aerogel relative to commercial nanoparticulate TiO2, indicating that 3D networked TiO2 more efficiently separates electron hole pairs. Upon excitation with narrow-band visible light centered at 550 nm, long-lived excited-state electrons are evident on CH3OH-exposed Au-TiO2 aerogels-but not on identically dosed TiO2 aerogels-verifying that incorporated Au nanoparticles sensitize the networked oxide to visible light. Under aerobic conditions (20 Torr O-2) and broadband UV illumination, surface-sited formates accumulate as adsorbed methoxy groups oxidize, at similar rates, on Au-TiO2 and TiO2 aerogels. Moving to excitation wavelengths longer than similar to 400 nm (i.e., the low-energy range of UV light) dramatically decreases methoxy photoconversion for methanol-saturated TiO2 aerogel, while Au-TiO2 aerogel remains highly active for methanol photooxidation. The wavelength dependence of formate production on Au-TiO2 tracks the absorbance spectrum for this material, which peaks at lambda = 550 nm due to resonance with the surface plasmon in the Au particles. The photooxidation rate for Au-TiO2 aerogel at 550 nm is comparable to that for TiO2 aerogel under broadband UV illumination, indicating efficient energy transfer from Au to TiO2 in the 3D mesoporous nanoarchitecture.
C1 [Panayotov, Dimitar A.] Bulgarian Acad Sci, Inst Gen & Inorgan Chem, BU-1113 Sofia, Bulgaria.
[DeSario, Paul A.; Pietron, Jeremy J.; Szymczak, Lindsey C.; Rolison, Debra R.] US Naval Res Lab, Surface Chem Branch Code 6170, Washington, DC 20375 USA.
[Brintlinger, Todd H.] US Naval Res Lab, Mat & Sensors Branch Code 6360, Washington, DC 20375 USA.
[Morris, John R.] Virginia Tech, Dept Chem, Blacksburg, VA 24061 USA.
RP Morris, JR (reprint author), Virginia Tech, Dept Chem, Blacksburg, VA 24061 USA.
EM jeremy.pietron@nrl.navy.mil; jrmorris@vt.edu
FU Army Research Office [W911NF-09-1-0150]; Defense Threat Reduction Agency
[W911NF-06-1-0111]; Office of Naval Research
FX The authors wish to thank Dr. Charles Bass for initiating this fruitful
collaboration. J.R.M. thanks Mr. Fred Blair for many hours of instrument
making. This work was supported through Grants from the Army Research
Office (W911NF-09-1-0150), the Defense Threat Reduction Agency
(W911NF-06-1-0111), and the Office of Naval Research. In addition,
helpful insight, advice, and use of instrumentation were provided by Dr.
Brian Tissue. The authors would also like to thank Dr. Jeffrey Owrutsky
(NRL) and the members of Code 6171 (NRL) for helpful discussions of the
results of the present study. P. A. DeSario is an NRC Postdoctoral
Associate, and Lindsey C. Szymczak is a STEP Research Aide in Code 6170.
NR 145
TC 17
Z9 18
U1 12
U2 123
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 JUL 25
PY 2013
VL 117
IS 29
BP 15035
EP 15049
DI 10.1021/jp312583w
PG 15
WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science,
Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 192RS
UT WOS:000322503600019
ER
PT J
AU Sang, LX
Gole, JL
Wang, JW
Brauer, J
Mao, BD
Prokes, SM
Burda, C
AF Sang, Lixia
Gole, James L.
Wang, Junwei
Brauer, Jonathan
Mao, Baodong
Prokes, S. M.
Burda, Clemens
TI Phase Transformation and Charge Transfer in Heavily Iron Ion Doped
Titanium Oxide and Oxynitride Nanocolloids
SO JOURNAL OF PHYSICAL CHEMISTRY C
LA English
DT Article
ID PHOTOCATALYTIC ACTIVITY; TIO2 POWDERS; NANOSTRUCTURES; ANATASE; WATER;
SEMICONDUCTOR; NANOPARTICLES; ABSORPTION; NANOSCALE; SILICON
AB Porous sol-gel generated TiO2 nanocolloids and their corresponding oxynitrides TiO2-xNx are investigated to evaluate the effects that accompany doping with iron (Fe-II) ions at high doping concentrations. The introduction of Fe-II at higher concentrations leads to an anatase-to-rutile conversion at room temperature for the seeded oxynitride nanocolloids and to a less crystalline state in the subsurface and bulk as suggested by Raman spectroscopy. Combinations of core level and valence band photoelectron spectroscopy are correlated with the results of density functional theory (DFT) calculations to demonstrate a facile charge transfer from Fe-II to Ti-IV, producing Ti-III and Fe-III, and subsequently the transformation of Fe-II + Ti-III to Fe-III + Ti-II. This process is associated with the detectable formation of Ti(III) and Ti(II) at the surface of the titania-based nanoparticles. With significant visible light absorption, the photocatalytic activities of the iron-seeded titania systems are comparable to that of the iron-doped oxynitride TiO2-xNx as a function of doping concentration. The observations reported herein suggest that the anatase-to-rutile phase transformation and the enhancement of electron transfer can control the visible-light catalytic activity within the doped nanopartides to form Fe-II/Fe-III-codoped TiO2 nanocolloids.
C1 [Sang, Lixia; Wang, Junwei; Mao, Baodong; Burda, Clemens] Case Western Reserve Univ, Dept Chem, Cleveland, OH 44106 USA.
[Sang, Lixia] Beijing Univ Technol, Key Lab Enhanced Heat Transfer & Energy Conservat, Minist Educ, Beijing 100124, Peoples R China.
[Sang, Lixia] Beijing Univ Technol, Key Lab Heat Transfer & Energy Convers, Beijing Municipal, Coll Environm & Energy Engn, Beijing 100124, Peoples R China.
[Gole, James L.] Georgia Inst Technol, Sch Phys, Atlanta, GA 30332 USA.
[Gole, James L.] Georgia Inst Technol, Sch Mech Engn, Atlanta, GA 30332 USA.
[Brauer, Jonathan] Univ Alabama, Dept Chem, Tuscaloosa, AL 35487 USA.
[Prokes, S. M.] NRL, Washington, DC 20375 USA.
RP Burda, C (reprint author), Case Western Reserve Univ, Dept Chem, Cleveland, OH 44106 USA.
EM james.gole@physics.gatech.edu; burda@case.edu
RI Mao, Baodong/B-6217-2012
FU National Science Foundation through the NIRT program [CTS-0608896]; CEO
program of the Georgia Institute of Technology
FX We appreciate helpful discussions with David Dixon and Mark White. We
acknowledge partial support for this work by the National Science
Foundation (CTS-0608896) through the NIRT program and a seed grant from
the CEO program of the Georgia Institute of Technology.
NR 49
TC 5
Z9 5
U1 2
U2 53
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 JUL 25
PY 2013
VL 117
IS 29
BP 15287
EP 15294
DI 10.1021/jp402547t
PG 8
WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science,
Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 192RS
UT WOS:000322503600047
ER
PT J
AU Halterman, K
Valls, OT
Alidoust, M
AF Halterman, Klaus
Valls, Oriol T.
Alidoust, Mohammad
TI Spin-Controlled Superconductivity and Tunable Triplet Correlations in
Graphene Nanostructures
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID ROOM-TEMPERATURE; TRANSPORT
AB We study graphene ferromagnet/superconductor/ferromagnet (F/S/F) nanostructures via a microscopic self-consistent Dirac Bogoliubov-de Gennes formalism. We show that as a result of proximity effects, experimentally accessible spin switching phenomena can occur as one tunes the Fermi level mu(F) of the F regions or varies the angle theta between exchange field orientations. Superconductivity can then be switched on and off by varying either theta or mu(F) (a spin-controlled superconducting graphene switch). The induced equal-spin triplet correlations in S can be controlled by tuning mu(F), effectively making a graphene based two-dimensional spin-triplet valve.
C1 [Halterman, Klaus] Naval Air Warfare Ctr, Div Phys, Michelson Lab, China Lake, CA 93555 USA.
[Valls, Oriol T.] Univ Minnesota, Sch Phys & Astron, Minneapolis, MN 55455 USA.
[Alidoust, Mohammad] Norwegian Univ Sci & Technol, Dept Phys, N-7491 Trondheim, Norway.
[Valls, Oriol T.] Univ Minnesota, Minnesota Supercomp Inst, Minneapolis, MN 55455 USA.
RP Halterman, K (reprint author), Naval Air Warfare Ctr, Div Phys, Michelson Lab, China Lake, CA 93555 USA.
EM klaus.halterman@navy.mil; otvalls@umn.edu; phymalidoust@gmail.com
OI Halterman, Klaus/0000-0002-6355-3134; Alidoust,
Mohammad/0000-0002-1554-687X
FU IARPA [N66001-12-1-2023]; HPC resources from the DOD HPCMP
FX K. H. is supported in part by IARPA and a grant of HPC resources from
the DOD HPCMP. O.T.V. thanks IARPA for Grant No. N66001-12-1-2023. M. A.
thanks J. Linder and T. Yokoyama for valuable discussions.
NR 31
TC 9
Z9 9
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 JUL 22
PY 2013
VL 111
IS 4
AR 046602
DI 10.1103/PhysRevLett.111.046602
PG 5
WC Physics, Multidisciplinary
SC Physics
GA 187KF
UT WOS:000322116100012
PM 23931389
ER
PT J
AU Ngai, KL
Roland, CM
AF Ngai, K. L.
Roland, C. M.
TI Note: Thermorheological complexity in polymers and the problem of the
glass transition
SO JOURNAL OF CHEMICAL PHYSICS
LA English
DT Editorial Material
ID MOLECULAR-WEIGHT POLYSTYRENE; DIELECTRIC-SPECTROSCOPY; TEMPERATURE
DEPENDENCES; VISCOELASTIC BEHAVIOR; DYNAMICS; POLYISOPRENE; MOTION;
MODES
C1 [Ngai, K. L.] Univ Pisa, Dipartimento Fis, I-56127 Pisa, Italy.
[Roland, C. M.] Naval Res Lab, Washington, DC 20375 USA.
RP Ngai, KL (reprint author), Univ Pisa, Dipartimento Fis, Largo B Pontecorvo 3, I-56127 Pisa, Italy.
NR 18
TC 8
Z9 8
U1 3
U2 24
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 JUL 21
PY 2013
VL 139
IS 3
AR 036101
DI 10.1063/1.4813322
PG 2
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 188OT
UT WOS:000322203000059
PM 23883060
ER
PT J
AU Gutting, BW
Marchette, D
Sherwood, R
Andrews, GA
Director-Myska, A
Channel, SR
Wolfe, D
Berger, AE
Mackie, RS
Watson, BJ
Rukhin, A
AF Gutting, Bradford W.
Marchette, David
Sherwood, Robert
Andrews, George A.
Director-Myska, Alison
Channel, Stephen R.
Wolfe, Daniel
Berger, Alan E.
Mackie, Ryan S.
Watson, Brent J.
Rukhin, Andrey
TI Modeling low-dose mortality and disease incubation period of
inhalational anthrax in the rabbit
SO JOURNAL OF THEORETICAL BIOLOGY
LA English
DT Article
DE Inhalational anthrax; Ames; Rabbit; Stochastic model; Dose-response
ID BACILLUS-ANTHRACIS; SPORE GERMINATION; RESPONSE MODELS; RISK; INFECTION;
OUTBREAK; PROPHYLAXIS
AB There is a need to advance our ability to conduct credible human risk assessments for inhalational anthrax associated with exposure to a low number of bacteria. Combining animal data with computational models of disease will be central in the low-dose and cross-species extrapolations required in achieving this goal. The objective of the current work was to apply and advance the competing risks (CR) computational model of inhalational anthrax where data was collected from NZW rabbits exposed to aerosols of Ames strain Bacillus anthracis.
An initial aim was to parameterize the CR model using high-dose rabbit data and then conduct a low-dose extrapolation. The CR low-dose attack rate was then compared against known low-dose rabbit data as well as the low-dose curve obtained when the entire rabbit dose-response data set was fitted to an exponential dose-response (EDR) model. The CR model predictions demonstrated excellent agreement with actual low-dose rabbit data. We next used a modified CR model (MCR) to examine disease incubation period (the time to reach a fever > 40 degrees C). The MCR model predicted a germination period of 14.5 h following exposure to a low spore dose, which was confirmed by monitoring spore germination in the rabbit lung using PCR, and predicted a low-dose disease incubation period in the rabbit between 14.7 and 16.8 days.
Overall, the CR and MCR model appeared to describe rabbit inhalational anthrax well. These results are discussed in the context of conducting laboratory studies in other relevant animal models, combining the CR/MCR model with other computation models of inhalational anthrax, and using the resulting information towards extrapolating a low-dose response prediction for man. Published by Elsevier Ltd.
C1 [Gutting, Bradford W.; Andrews, George A.; Berger, Alan E.; Mackie, Ryan S.; Watson, Brent J.] USN, Ctr Surface Warfare, Dahlgren Div, CBR Concepts & Experimentat Branch Z21, Dahlgren, VA 22448 USA.
[Sherwood, Robert] Lovelace Resp Res Inst, Albuquerque, NM USA.
[Director-Myska, Alison; Channel, Stephen R.; Wolfe, Daniel] Def Threat Reduct Agcy, Fr Belvoir, MD USA.
[Marchette, David; Rukhin, Andrey] USN, Ctr Surface Warfare, Dahlgren Div, Sensor Fus Branch Q33, Dahlgren, VA 22448 USA.
RP Gutting, BW (reprint author), USN, Ctr Surface Warfare, Dahlgren Div, CBR Concepts & Experimentat Branch Z21, Dahlgren, VA 22448 USA.
EM bradford.gutting@navy.mil
FU Defense Threat Reduction Agency [BA06TAS022]
FX This work was supported by the Defense Threat Reduction Agency
(BA06TAS022).
NR 44
TC 9
Z9 9
U1 0
U2 12
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 JUL 21
PY 2013
VL 329
BP 20
EP 31
DI 10.1016/j.jtbi.2013.03.020
PG 12
WC Biology; Mathematical & Computational Biology
SC Life Sciences & Biomedicine - Other Topics; Mathematical & Computational
Biology
GA 155XI
UT WOS:000319783300004
PM 23567649
ER
PT J
AU Baines, EK
McAlister, HA
ten Brummelaar, TA
Turner, NH
Sturmann, J
Sturmann, L
Farrington, CD
Vargas, N
van Belle, GT
Ridgway, ST
AF Baines, Ellyn K.
McAlister, Harold A.
ten Brummelaar, Theo A.
Turner, Nils H.
Sturmann, Judit
Sturmann, Laszlo
Farrington, Christopher D.
Vargas, Norm
van Belle, Gerard T.
Ridgway, Stephen T.
TI CHARACTERIZATION OF THE RED GIANT HR 2582 USING THE CHARA ARRAY
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE infrared: stars; stars: fundamental parameters; stars: individual (HR
2582); techniques: interferometric
ID EFFECTIVE TEMPERATURES; STARS; CATALOG; COROT; POPULATIONS; CALIBRATION;
EXTINCTION; MASS
AB We present the fundamental parameters of HR 2582, a high-mass red giant star whose evolutionary state is amystery. We used the CHARA Array interferometer to directly measure the star's limb-darkened angular diameter (1.006 +/- 0.020 mas) and combined our measurement with parallax and photometry from the literature to calculate its physical radius (35.76 +/- 5.31 R-circle dot), luminosity (517.8 +/- 17.5 L-circle dot), bolometric flux (14.8 +/- 0.5 x 10(-8) erg s(-1) cm(-2)), and effective temperature (4577 +/- 60 K). We then determined the star's mass (5.6 +/- 1.7 M-circle dot) using our new values with stellar oscillation results from Baudin et al. Finally, using the Yonsei-Yale evolutionary models, we estimated HR 2582's age to be 165(-15)(+20) Myr. While our measurements do not provide the precision required to definitively state where the star is in its evolution, it remains an excellent test case for evaluating stellar interior models.
C1 [Baines, Ellyn K.] Naval Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
[McAlister, Harold A.; ten Brummelaar, Theo A.; Turner, Nils H.; Sturmann, Judit; Sturmann, Laszlo; Farrington, Christopher D.; Vargas, Norm] Georgia State Univ, Ctr High Angular Resolut Astron, Atlanta, GA 30302 USA.
[van Belle, Gerard T.] Lowell Observ, Flagstaff, AZ 86001 USA.
[Ridgway, Stephen T.] Natl Opt Astron Observ, Tucson, AZ 85726 USA.
RP Baines, EK (reprint author), Naval Res Lab, Remote Sensing Div, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM ellyn.baines@nrl.navy.mil
FU National Science Foundation through NSF grant [AST-0908253,
AST-1211129]; Georgia State University through the College of Arts and
Sciences; W. M. Keck Foundation; NASA [NNH09AK731]; National Aeronautics
and Space Administration; National Science Foundation
FX The CHARA Array is funded by the National Science Foundation through NSF
grant AST-0908253 and AST-1211129 and by Georgia State University
through the College of Arts and Sciences, and by the W. M. Keck
Foundation. S. T. R. acknowledges partial support by NASA grant
NNH09AK731. This research has made use of the SIMBAD database, operated
at CDS, Strasbourg, France. 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.
NR 35
TC 1
Z9 1
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 JUL 20
PY 2013
VL 772
IS 1
AR 16
DI 10.1088/0004-637X/772/1/16
PG 5
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 181NG
UT WOS:000321673700016
ER
PT J
AU Grilli, F
Marini, M
Book, JW
Campanelli, A
Paschini, E
Russo, A
AF Grilli, Federica
Marini, Mauro
Book, Jeffrey W.
Campanelli, Alessandra
Paschini, Elio
Russo, Aniello
TI Flux of nutrients between the middle and southern Adriatic Sea
(Gargano-Split section)
SO MARINE CHEMISTRY
LA English
DT Article
DE Current fields; Nutrient fluxes; Adriatic Sea; Water masses
ID PHOSPHORUS LIMITATION; GENERAL-CIRCULATION; DENSE WATER; EASTERN;
TRANSPORT; STRAIT; DEEP; VEIN
AB The transect Gargano-Split at the borderline between the middle and southern Adriatic on the Palagruza Sill is exposed to the influences both from the northern and southern Adriatic and is a main transition point for the Adriatic. Thus, water and dissolved inorganic nutrients fluxes between the northern shelf area and the southern deep sea can be estimated at this point. During the Dynamic of the Adriatic in Real Time (DART) project, 12 bottom-mounted Acoustic Doppler Current Profilers (ADCPs) were deployed from November 2005 to September 2006 along the Gargano-Split section. During the same period four different oceanographic cruises were carried out (in November 2005, March, April and July 2006). Hydrographic stations were sampled with the CTD/Rosette to measure physical (temperature, salinity and density) and chemical (oxygen, orthosilicate, orthophosphate and nitrite+nitrate) parameters. Measurements of current velocities allowed estimation of water fluxes and the net nutrient transports were estimated from these and nutrient concentrations. The orthosilicate flux across the transect for inflow and for outflow was higher (except for March) than the nitrite + nitrate and the orthophosphate fluxes. The outflowing nutrient fluxes in the Western Adriatic Current (WAC) were much lower than the total nutrient flux outflow as a large portion of the nutrient flux towards the southern Adriatic was carried by other outflowing waters including North Adriatic Dense Water (NAdDW) flowing along the Italian bottom slope and Middle Adriatic Dense Water (MAdDW) flowing through the deepest passage in the center of the Sill. The July survey provided the first opportunity for direct measurements of total nutrient fluxes across a full basin transect of the central Adriatic. The measurements suggest that the nutrient import and nutrient export were roughly in balance. Modified Levantine Intermediate Water (MOW) significantly contributed to a total nutrient influx across the transect that was strong enough to counter-balance the nutrient export by the WAC, NAdDW, MAdDW, and other sources. (C) 2013 Elsevier B.V. All rights reserved.
C1 [Grilli, Federica; Marini, Mauro; Campanelli, Alessandra; Paschini, Elio; Russo, Aniello] CNR, Inst Marine Sci, IT-60125 Ancona, Italy.
[Book, Jeffrey W.] USN, Res Lab, Ocean Sci Branch, Stennis Space Ctr, MS 39529 USA.
[Russo, Aniello] Univ Politecn Marche, Dipartimento Sci Vita & Ambiente, I-60131 Ancona, Italy.
RP Grilli, F (reprint author), CNR, Inst Marine Sci ISMAR, Lg Fiera Pesca 2, I-60125 Ancona, Italy.
EM f.grilli@ismar.cnr.it
RI Russo, Aniello/A-2319-2010; CNR, Ismar/P-1247-2014; Campanelli,
Alessandra/E-5587-2016; marini, mauro/A-6477-2012;
OI Russo, Aniello/0000-0003-3651-8146; CNR, Ismar/0000-0001-5351-1486;
Campanelli, Alessandra/0000-0002-3563-5087; marini,
mauro/0000-0002-9674-7197; CAMPANELLI, ALESSANDRA/0000-0003-4818-3996
FU Office of Naval Research [0602435N, 0601153N]
FX Thanks are due to the Captains, crews, and scientists of R/V Dallaporta,
RN Alliance, and R/V Universitatis for their assistance in field work
including instrument deployment and recovery operations during the
Dynamics of the Adriatic in Real Time (DART) experiments. The work of
J.W. Book was supported by the Office of Naval Research under Program
Element Numbers 0602435N and 0601153N.
NR 43
TC 6
Z9 6
U1 0
U2 21
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0304-4203
J9 MAR CHEM
JI Mar. Chem.
PD JUL 20
PY 2013
VL 153
BP 1
EP 14
DI 10.1016/j.marchem.2013.04.005
PG 14
WC Chemistry, Multidisciplinary; Oceanography
SC Chemistry; Oceanography
GA 168EJ
UT WOS:000320688200001
ER
PT J
AU Lee, K
Li, L
Loehr, NA
AF Lee, Kyungyong
Li, Li
Loehr, Nicholas A.
TI Limits of modified higher q, t-Catalan numbers
SO ELECTRONIC JOURNAL OF COMBINATORICS
LA English
DT Article
ID POSITIVITY CONJECTURE; HILBERT SCHEMES; STATISTICS; CHARACTER; POINTS;
PATHS; PLANE; PROOF
AB The q, t-Catalan numbers can be defined using rational functions, geometry related to Hilbert schemes, symmetric functions, representation theory, Dyck paths, partition statistics, or Dyck words. After decades of intensive study, it was eventually proved that all these definitions are equivalent. In this paper, we study the similar situation for higher q, t-Catalan numbers, where the equivalence of the algebraic and combinatorial definitions is still conjectural. We compute the limits of several versions of the modified higher q, t-Catalan numbers and show that these limits equal the generating function for integer partitions. We also identify certain coefficients of the higher q, t-Catalan numbers as enumerating suitable integer partitions, and we make some conjectures on the homological significance of the Bergeron-Garsia nabla operator.
C1 [Lee, Kyungyong] Wayne State Univ, Dept Math, Detroit, MI 48202 USA.
[Li, Li] Oakland Univ, Dept Math & Stat, Rochester, MI 48309 USA.
[Loehr, Nicholas A.] Virginia Tech, Dept Math, Blacksburg, VA 24061 USA.
[Loehr, Nicholas A.] USN Acad, Dept Math, Annapolis, MD 21402 USA.
RP Lee, K (reprint author), Wayne State Univ, Dept Math, Detroit, MI 48202 USA.
EM klee@math.wayne.edu; li2345@oakland.edu; nloehr@math.vt.edu
FU NSF [DMS 0901367]; Simons Foundation [244398]
FX Partially supported by NSF grant DMS 0901367.; This work was partially
supported by a grant from the Simons Foundation (#244398 to Nicholas
Loehr)
NR 26
TC 0
Z9 0
U1 0
U2 3
PU ELECTRONIC JOURNAL OF COMBINATORICS
PI NEWARK
PA C/O FELIX LAZEBNIK, RM 507, EWING HALL, UNIV DELAWARE, DEPT MATHEMATICAL
SCIENCES, NEWARK, DE 19716 USA
SN 1077-8926
J9 ELECTRON J COMB
JI Electron. J. Comb.
PD JUL 19
PY 2013
VL 20
IS 3
AR P4
PG 23
WC Mathematics, Applied; Mathematics
SC Mathematics
GA 185GS
UT WOS:000321955800003
ER
PT J
AU Yoon, W
Boercker, JE
Lumb, MP
Placencia, D
Foos, EE
Tischler, JG
AF Yoon, Woojun
Boercker, Janice E.
Lumb, Matthew P.
Placencia, Diogenes
Foos, Edward E.
Tischler, Joseph G.
TI Enhanced Open-Circuit Voltage of PbS Nanocrystal Quantum Dot Solar Cells
SO SCIENTIFIC REPORTS
LA English
DT Article
ID MULTIPLE EXCITON GENERATION; PHOTOVOLTAICS; NANOPARTICLES; ELECTRODES;
EFFICIENCY; STABILITY; EMISSION; FILMS; AIR
AB Nanocrystal quantum dots (QD) show great promise toward improving solar cell efficiencies through the use of quantum confinement to tune absorbance across the solar spectrum and enable multi-exciton generation. Despite this remarkable potential for high photocurrent generation, the achievable open-circuit voltage (V-oc) is fundamentally limited due to non-radiative recombination processes in QD solar cells. Here we report the highest open-circuit voltages to date for colloidal QD based solar cells under one sun illumination. This V-oc of 692 +/- 7 mV for 1.4 eV PbS QDs is a result of improved passivation of the defective QD surface, demonstrating V-oc (mV) = 553E(g)/q-59 as a function of the QD bandgap (E-g). Comparing experimental V-oc variation with the theoretical upper-limit obtained from one diode modeling of the cells with different E-g, these results clearly demonstrate that there is a tremendous opportunity for improvement of V-oc to values greater than 1 V by using smaller QDs in QD solar cells.
C1 [Yoon, Woojun; Boercker, Janice E.; Lumb, Matthew P.; Placencia, Diogenes; Foos, Edward E.; Tischler, Joseph G.] US Naval Res Lab, Washington, DC 20375 USA.
[Lumb, Matthew P.] George Washington Univ, Washington, DC 20037 USA.
RP Yoon, W (reprint author), US Naval Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM woojun.yoon@ieee.org
FU Office of Naval Research (ONR)
FX This research was performed while W. Yoon and D. Placencia held a
National Research Council (NRC) Research Associateship Awards (RAP) at
the U.S. Naval Research Laboratory. The Office of Naval Research (ONR)
is acknowledged for financial support of this work.
NR 43
TC 48
Z9 48
U1 6
U2 142
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 JUL 19
PY 2013
VL 3
AR 2225
DI 10.1038/srep02225
PG 7
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 185WK
UT WOS:000322000900001
PM 23868514
ER
PT J
AU Luo, FF
Lu, RL
Zhou, H
Hu, FL
Bao, GH
Huang, B
Li, ZZ
AF Luo, Feifei
Lu, Ruli
Zhou, Hong
Hu, Fenglin
Bao, Guanhu
Huang, Bo
Li, Zengzhi
TI Metabolic Effect of an Exogenous Gene on Transgenic Beauveria bassiana
Using Liquid Chromatography-Mass Spectrometry-Based Metabolomics
SO JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
LA English
DT Article
DE B. bassiana; transgenic strains; metabolomics; LC-MS;
glycerophospholipid; oxidative stress; metabolic pathway; antioxidant
ID PATHOGEN STAGONOSPORA-NODORUM; ALTERNARIA-ALTERNATA;
METARHIZIUM-ANISOPLIAE; SCORPION NEUROTOXIN; MANNITOL; ERGOTHIONEINE;
PATTERNS; URINE; AAIT; METABOANALYST
AB Genetic modification of Beauveria bassiana with the scorpion neurotoxin aaIT gene can distinctly increase its insecticidal activity, whereas the effect of this exogenous gene on the metabolism of B. bassiana is unknown until now. Thus, we investigate the global metabolic profiling of mycelia and conidia of transgenic and wild-type B. bassiana by liquid chromatography-mass spectrometry (LC-MS). Principal component analysis (PCA) and orthogonal projection to latent structure discriminant analysis (OPLS-DA) reveal clear discrimination of wild-type mycelia and conidia from transgenic mycelia and conidia. The decrease of glycerophospholipids, carnitine, and fatty acids and the increase of oxylipins, glyoxylate, pyruvic acid, acetylcarnitine, fumarate, ergothioneine, and trehalose in transgenic mycelia indicate the enhanced oxidative reactions. In contrast, most metabolites related to oxidative stress are not altered significantly in conidia, which implies that there will be no significant oxidative stress reaction when the aaIT gene is quiescent in cells.
C1 [Luo, Feifei; Lu, Ruli; Hu, Fenglin; Bao, Guanhu; Huang, Bo; Li, Zengzhi] Anhui Agr Univ, Res Ctr Entomogenous Fungi, Hefei 230036, Anhui, Peoples R China.
[Zhou, Hong] Naval Postgrad Sch, Dept Appl Math, Monterey, CA 93943 USA.
RP Hu, FL (reprint author), Anhui Agr Univ, Res Ctr Entomogenous Fungi, Hefei 230036, Anhui, Peoples R China.
EM hufenglin@hotmail.com
FU Ministry of Science and Technology of Anhui Province [11040606M69,
KJ2012A107]; National Natural Science Foundation of China [30871676]
FX This work was funded by the Ministry of Science and Technology of Anhui
Province (Grants 11040606M69 and KJ2012A107) and the National Natural
Science Foundation of China (Grant 30871676).
NR 46
TC 8
Z9 8
U1 5
U2 30
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0021-8561
J9 J AGR FOOD CHEM
JI J. Agric. Food Chem.
PD JUL 17
PY 2013
VL 61
IS 28
BP 7008
EP 7017
DI 10.1021/jf401703b
PG 10
WC Agriculture, Multidisciplinary; Chemistry, Applied; Food Science &
Technology
SC Agriculture; Chemistry; Food Science & Technology
GA 187FZ
UT WOS:000322103600029
PM 23822565
ER
PT J
AU New, LF
Moretti, DJ
Hooker, SK
Costa, DP
Simmons, SE
AF New, Leslie F.
Moretti, David J.
Hooker, Sascha K.
Costa, Daniel P.
Simmons, Samantha E.
TI Using Energetic Models to Investigate the Survival and Reproduction of
Beaked Whales (family Ziphiidae)
SO PLOS ONE
LA English
DT Article
ID BOTTLE-NOSED WHALES; CUVIERS ZIPHIUS-CAVIROSTRIS; MESOPLODON-STEJNEGERI;
INDOPACETUS-PACIFICUS; HYPEROODON-AMPULLATUS; STOMACH CONTENTS;
BIOLOGICAL OBSERVATIONS; DIVING BEHAVIOR; M-MIRUS; SEA
AB Mass stranding of several species of beaked whales (family Ziphiidae) associated with exposure to anthropogenic sounds has raised concern for the conservation of these species. However, little is known about the species' life histories, prey or habitat requirements. Without this knowledge, it becomes difficult to assess the effects of anthropogenic sound, since there is no way to determine whether the disturbance is impacting the species' physical or environmental requirements. Here we take a bioenergetics approach to address this gap in our knowledge, as the elusive, deep-diving nature of beaked whales has made it hard to study these effects directly. We develop a model for Ziphiidae linking feeding energetics to the species' requirements for survival and reproduction, since these life history traits would be the most likely to be impacted by non-lethal disturbances. Our models suggest that beaked whale reproduction requires energy dense prey, and that poor resource availability would lead to an extension of the inter-calving interval. Further, given current information, it seems that some beaked whale species require relatively high quality habitat in order to meet their requirements for survival and reproduction. As a result, even a small non-lethal disturbance that results in displacement of whales from preferred habitats could potentially impact a population if a significant proportion of that population was affected. We explored the impact of varying ecological parameters and model assumptions on survival and reproduction, and find that calf and fetus survival appear more readily affected than the survival of adult females.
C1 [New, Leslie F.; Simmons, Samantha E.] US Marine Mammal Commiss, Bethesda, MD USA.
[Moretti, David J.] Naval Undersea Warfare Ctr, Newport, RI USA.
[Hooker, Sascha K.] Univ St Andrews, St Andrews, Fife, Scotland.
[Costa, Daniel P.] Univ Calif Santa Cruz, Santa Cruz, CA 95064 USA.
RP New, LF (reprint author), US Marine Mammal Commiss, Bethesda, MD USA.
EM lnew@usgs.gov
RI Hooker, Sascha/J-3267-2013
FU National Research Council; Office of Naval Research [N0014-09-0896]
FX This work was supported in part by a grant from the National Research
Council to LN, as well as being informed by the Working Group on the
Population Consequences of Disturbance supported by grant N0014-09-0896
from the Office of Naval Research to University of California, Santa
Barbara. The funders had no role in study design, data collection and
analysis, decision to publish, or preparation of the manuscript.
NR 90
TC 17
Z9 18
U1 5
U2 41
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 JUL 17
PY 2013
VL 8
IS 7
AR e68725
DI 10.1371/journal.pone.0068725
PG 14
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 185WH
UT WOS:000322000600021
PM 23874737
ER
PT J
AU Sorooshian, A
Wang, Z
Coggon, MM
Jonsson, HH
Ervens, B
AF Sorooshian, Armin
Wang, Zhen
Coggon, Matthew M.
Jonsson, Haflidi H.
Ervens, Barbara
TI Observations of Sharp Oxalate Reductions in Stratocumulus Clouds at
Variable Altitudes: Organic Acid and Metal Measurements During the 2011
E-PEACE Campaign
SO ENVIRONMENTAL SCIENCE & TECHNOLOGY
LA English
DT Article
ID CALIFORNIA RADIATION FOGS; DROP-SIZE-DEPENDENCE; AEROSOL FORMATION;
AQUEOUS PHOTOOXIDATION; MASS-SPECTROMETRY; MARINE ATMOSPHERE;
OXALIC-ACID; CHEMICAL-COMPOSITION; CHEMISTRY; SULFATE
AB This work examines organic acid and metal concentrations in northeastern Pacific Ocean stratocumulus cloudwater samples collected by the CIRPAS Twin Otter between July and August 2011. Correlations between a suite of various monocarboxylic and dicarboxylic acid concentrations are consistent with documented aqueous-phase mechanistic relationships leading up to oxalate production. Monocarboxylic and dicarboxylic acids exhibited contrasting spatial profiles reflecting their different sources; the former were higher in concentration near the continent due to fresh organic emissions. Concentrations of sea salt crustal tracer species, oxalate, and malonate were positively correlated with low-level wind speed suggesting that an important route for oxalate and malonate entry in cloudwater is via some combination of association with coarse particles and gaseous precursors emitted from the ocean surface. Three case flights show that oxalate (and no other organic acid) concentrations drop by nearly an order of magnitude relative to samples in the same vicinity. A consistent feature in these cases was an inverse relationship between oxalate and several metals (Fe, Mn, K, Na, Mg, Ca), especially Fe. By means of box model studies we show that the loss of oxalate due to the photolysis of iron oxalato complexes is likely a significant oxalate sink in the study region due to the ubiquity of oxalate precursors, clouds, and metal emissions from ships, the ocean, and continental sources.
C1 [Sorooshian, Armin; Wang, Zhen] Univ Arizona, Tucson, AZ 85721 USA.
[Coggon, Matthew M.] CALTECH, Dept Chem Engn, Pasadena, CA 91126 USA.
[Jonsson, Haflidi H.] Naval Postgrad Sch, Ctr Interdisciplinary Remotely Piloted Aircraft S, Monterey, CA 93943 USA.
[Ervens, Barbara] Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA.
[Ervens, Barbara] NOAA, Div Chem Sci, Earth Syst Res Lab, Boulder, CO 80309 USA.
RP Sorooshian, A (reprint author), Univ Arizona, Tucson, AZ 85721 USA.
EM armin@email.arizona.edu
RI Coggon, Matthew/I-8604-2016; Manager, CSD Publications/B-2789-2015;
OI Coggon, Matthew/0000-0002-5763-1925; Sorooshian,
Armin/0000-0002-2243-2264
FU ONR [N00014-10-1-0811, N00014-11-1-0783, N00014-10-1-0200]; NOAA's
Climate Goal
FX This work was funded by ONR grants N00014-10-1-0811, N00014-11-1-0783,
and N00014-10-1-0200. We acknowledge Dean Hegg for providing the
cloudwater collector. We gratefully acknowledge the NOAA Air Resources
Laboratory (ARL) for the provision of the HYSPLIT transport and
dispersion model and READY website (http://ready.arl.noaa. gov) used in
this publication. BE acknowledges support from NOAA's Climate Goal.
NR 84
TC 32
Z9 32
U1 0
U2 32
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0013-936X
EI 1520-5851
J9 ENVIRON SCI TECHNOL
JI Environ. Sci. Technol.
PD JUL 16
PY 2013
VL 47
IS 14
BP 7747
EP 7756
DI 10.1021/es4012383
PG 10
WC Engineering, Environmental; Environmental Sciences
SC Engineering; Environmental Sciences & Ecology
GA 186QS
UT WOS:000322059800023
PM 23786214
ER
PT J
AU Maron, Y
Starobinets, A
Fisher, VI
Kroupp, E
Osin, D
Fisher, A
Deeney, C
Coverdale, CA
Lepell, PD
Yu, EP
Jennings, C
Cuneo, ME
Herrmann, MC
Porter, JL
Mehlhorn, TA
Apruzese, JP
AF Maron, Y.
Starobinets, A.
Fisher, V. I.
Kroupp, E.
Osin, D.
Fisher, A.
Deeney, C.
Coverdale, C. A.
Lepell, P. D.
Yu, E. P.
Jennings, C.
Cuneo, M. E.
Herrmann, M. C.
Porter, J. L.
Mehlhorn, T. A.
Apruzese, J. P.
TI Pressure and Energy Balance of Stagnating Plasmas in z-Pinch
Experiments: Implications to Current Flow at Stagnation
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID X-RAY YIELDS; CONTINUUM RADIATION; SIMULATIONS; IMPLOSIONS
AB Detailed spectroscopic diagnostics of the stagnating plasma in two disparate z pinches allow, for the first time, the examination of the plasma properties within a 1D shock wave picture, demonstrating a good agreement with this picture. The conclusion is that for a wide range of imploding-plasma masses and current amplitudes, in experiments optimizing non-Planckian hard radiation yields, contrary to previous descriptions the stagnating plasma pressure is balanced by the implosion pressure, and the radiation energy is provided by the imploding-plasma kinetic energy, rather than by the magnetic-field pressure and magnetic-field-energy dissipation, respectively.
C1 [Maron, Y.; Starobinets, A.; Fisher, V. I.; Kroupp, E.; Osin, D.] Weizmann Inst Sci, IL-76100 Rehovot, Israel.
[Fisher, A.] Technion Israel Inst Technol, Fac Phys, IL-32000 Haifa, Israel.
[Deeney, C.; Coverdale, C. A.; Lepell, P. D.; Yu, E. P.; Jennings, C.; Cuneo, M. E.; Herrmann, M. C.; Porter, J. L.] Sandia Natl Labs, Albuquerque, NM USA.
[Mehlhorn, T. A.; Apruzese, J. P.] USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
RP Maron, Y (reprint author), Weizmann Inst Sci, IL-76100 Rehovot, Israel.
FU ISF; Sandia Laboratories; NRL (U.S.)
FX We are highly grateful to A. Velikovich, Z. Zinamon, G. Falkovich, N.
Zabusky, E. Nardi, E. Waisman, M. Desjarlais, J. Giuliani, W. Thornhill,
A. Fruchtman, and B. Jones for valuable discussions. This work is
supported in part by the ISF, Sandia Laboratories, and NRL (U.S.).
NR 22
TC 7
Z9 7
U1 0
U2 11
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 JUL 16
PY 2013
VL 111
IS 3
AR 035001
DI 10.1103/PhysRevLett.111.035001
PG 5
WC Physics, Multidisciplinary
SC Physics
GA 183YJ
UT WOS:000321852900010
PM 23909333
ER
PT J
AU Teague, WJ
Wijesekera, HW
Jarosz, E
Fribance, DB
Lugo-Fernandez, A
Hallock, ZR
AF Teague, W. J.
Wijesekera, H. W.
Jarosz, E.
Fribance, D. B.
Lugo-Fernandez, A.
Hallock, Z. R.
TI Current and hydrographic conditions at the East Flower Garden Bank in
2011
SO CONTINENTAL SHELF RESEARCH
LA English
DT Article
DE East Flower Garden Bank; Current; Mixed-layer depth;
Temperature/salinity; Northwestern Gulf of Mexico (27-28 N, 93-94 W)
ID GULF-OF-MEXICO; TEXAS-LOUISIANA SHELF; CONTINENTAL-SHELF; INERTIAL
CURRENTS; NORTHWEST GULF; VARIABILITY; CIRCULATION; OCEAN; WIND;
TRANSPORT
AB The East Flower Garden Bank (EFGB), part of the Flower Garden Banks National Marine Sanctuary, is located in the northwestern Gulf of Mexico, about 185 km southeast of Galveston, Texas. With a width of about 5 km, the steep-sided bank rises from water depths of over 100 m to within less than 20 m of the surface. Four acoustic Doppler current profiler (ADCP) moorings and four temperature/salinity strings were deployed around the EFGB with an additional ADCP on top of the bank for about 1 year. The main objective was to understand the ocean processes over the EFGB and to examine the importance of the topographically induced processes on shelf edge circulation on longer (e.g. days to seasonal) time scales. Currents were generally eastward over the bank in the upper water column. Eddy events occasionally reversed the eastward flow for a few days. Currents in the lower water column tended to align with the bank's bathymetry and mostly were directed offshore at the southern edge of the bank. Wind and eddy events moved both shelf and off-shelf waters over the bank, including waters from as deep as 200 m through upwelling and/or mixing processes. Mixed layers changed by as much as 50 m in a couple of days. inertial currents occurred throughout the year and were often much larger than the tidal currents. Commonly, the inertial currents were strong enough to reverse the predominantly eastward current flow on time scales of less than a day. Westward propagating cyclonic eddies (often associated with anticyclonic eddies) likely connect biological activities of the EFGB with the West Flower Garden Bank. Banks such as the EFGB, with large aspect ratios and heights, strongly alter circulation and enhance exchange processes at the shelf break. Published by Elsevier Ltd.
C1 [Teague, W. J.; Wijesekera, H. W.; Jarosz, E.; Fribance, D. B.] USN, Res Lab, Stennis Space Ctr, MS 39529 USA.
[Lugo-Fernandez, A.] Bur Ocean Energy Management, New Orleans, LA 70123 USA.
[Hallock, Z. R.] QinetiQ North Amer, Slidell, LA 70461 USA.
RP Teague, WJ (reprint author), USN, Res Lab, Stennis Space Ctr, MS 39529 USA.
EM William.Teague@nrlssc.navy.mil
FU Bureau of Ocean Energy Management (BOEM) [M10PG00038]; Office of Naval
Research in a Naval Research Laboratory (NRL)
FX This work was sponsored by the Bureau of Ocean Energy Management (BOEM;
formerly Minerals Management Service) in the project referred to as the
"Currents Over Banks (COB)" through Interagency Agreement no. M10PG00038
and by the Office of Naval Research in a Naval Research Laboratory (NRL)
project referred to as "Mixing Over Rough Topography (MORT)". The
measurements were made in cooperation with the Flower Garden Banks
National Marine Sanctuary (administered by the National Oceanic and
Atmospheric Administration (NOAA)). Thanks are extended to our mooring
team of Mark Hulbert, Andrew Quaid, and Justin Brodersen of NRL, and to
Steve Soya of QinetiQ.
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PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0278-4343
EI 1873-6955
J9 CONT SHELF RES
JI Cont. Shelf Res.
PD JUL 15
PY 2013
VL 63
BP 43
EP 58
DI 10.1016/j.csr.2013.04.039
PG 16
WC Oceanography
SC Oceanography
GA 178CA
UT WOS:000321420500005
ER
PT J
AU McCulloch, AA
Kamykowski, D
Morrison, JM
Thomas, CJ
Pridgen, KG
AF McCulloch, Anita A.
Kamykowski, Daniel
Morrison, John M.
Thomas, Carrie J.
Pridgen, Katy Grabowski
TI A physical and biological context for Karenia brevis seed populations on
the northwest Florida shelf during July 2009
SO CONTINENTAL SHELF RESEARCH
LA English
DT Article
DE Benthic; Harmful algal bloom; Pelagic; Sediment; Upwelling
ID DINOFLAGELLATE GYMNODINIUM BREVE; CLASS ABUNDANCES; TOXIC
DINOFLAGELLATE; COMMUNITY-STRUCTURE; TEMPERATURE BUDGET; BENTHIC
MICROALGAE; BIOPHYSICAL MODEL; HPLC MEASUREMENTS; PIGMENT ANALYSIS;
GROWTH-RATE
AB The current effort focuses on characterizing physical and biological conditions across the northwest Florida shelf during summer as they influence Karenia brevis distributions and phytoplankton/microphytobenthos community associations. Phytoplankton and benthic algal communities were examined in the context of cross-shelf hydrography and sediment conditions during July 2009 between the 20 and 65 m isobaths off Panama City, FL A towed undulating profiler (SeaSciences Acrobat) mapped water column characteristics between near-surface and similar to 1 m above the sediment. A CID/rosette provided hydrographic profiles and collected water samples at 17 cross-shelf locations at selected depths for nutrient concentration, phytoplankton biomass determination, and chemotaxonomic and taxonomic phytoplankton identification. In addition, a CTD/rosette time series sample set was collected following a holey sock drogue set at similar to 34 m along the similar to 50 m isobath, and cores were collected at eight stations approximately along the 30, 40 and 55 m isobaths. Cross-shelf, a pycnocline existed at similar to 10 m depth, the 1% light level penetrated to similar to 45 m depth, and nitrate-nitrite (NO3-+NO2- concentrations increased in the lower 10 m of the water column to the 50 m isobath and then below 40-m depth to the 65 m isobath. A chlorophyll a peak occurred near-bottom between the 25 and 35 m isobaths. Gyroxanthin dino-flagellates (GD) representing K. brevis occurred across the shelf in near-surface and near-bottom waters. Near-surface GD co-occurred with cyanophytes at low density in the upper 20 m of the water column where NO3-+NO2- concentrations were low. Above sediments in the euphotic zone, near-bottom GD were most abundant between the 25 and 35 m isobaths where the NO3-+NO2- concentrations were 1-mu M and where microphytobenthos competed for nutrient sources. Below the euphotic zone, GD were present near-bottom to the 60 m isobath where NO3-+NO2- concentrations approached 6 mu M. A pattern consistent with dinoflagellate diel vertical migration was inferred at the 50-m isobath time-series station. The results provide insight into offshore K. brevis seed populations and their associations with other phytoplankton and microphytobenthos. Under summer light and nutrient conditions along the northwest Florida shelf, K. brevis coastal blooms may be seeded by diffuse near-surface populations during occasional downwelling conditions and by more concentrated near-bottom populations during more prevalent upwelling conditions. (C) 2013 Elsevier Ltd. All rights reserved.
C1 [McCulloch, Anita A.; Kamykowski, Daniel; Thomas, Carrie J.] N Carolina State Univ, Raleigh, NC 27695 USA.
[Morrison, John M.] Univ N Carolina, Ctr Marine Sci, Wilmington, NC 28403 USA.
[Pridgen, Katy Grabowski] USN, Oceanog Off, Stennis Space Ctr MS, Stennis Space Ctr, MS 39529 USA.
RP Kamykowski, D (reprint author), N Carolina State Univ, Raleigh, NC 27695 USA.
EM dkamyko@ncsu.edu
FU National Science Foundation (NSF) [OCE-0726271]
FX Data used in this paper were obtained from: (1) the NASA's Aqua
Satellite using Giovanni developed and maintained by the NASA GES DISC);
(2) NOAA NDBC; (3) the NOAA PMEL Southwest Fisheries Science Center Live
Access Server; and (4) the Florida Fish and Wildlife Conservation
Commission. Dr. J. Pinckney kindly provided the support for HPLC
analyses in the phytoplankton pigment laboratory (University of South
Carolina). All contour plots were generated using Ocean Data View
(Schlitzer, 2011). Funding was provided by the National Science
Foundation (NSF) grant #OCE-0726271 (Kamykowski, Janowitz, Thomas, and
Morrison). Helpful suggestions by two reviewers significantly improved
the manuscript.
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PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0278-4343
J9 CONT SHELF RES
JI Cont. Shelf Res.
PD JUL 15
PY 2013
VL 63
BP 94
EP 111
DI 10.1016/j.csr.2013.05.001
PG 18
WC Oceanography
SC Oceanography
GA 178CA
UT WOS:000321420500009
ER
PT J
AU Zhang, QR
Rhodes, D
Zeng, B
Besara, T
Siegrist, T
Johannes, MD
Balicas, L
AF Zhang, Q. R.
Rhodes, D.
Zeng, B.
Besara, T.
Siegrist, T.
Johannes, M. D.
Balicas, L.
TI Anomalous metallic state and anisotropic multiband superconductivity in
Nb3Pd0.7Se7
SO PHYSICAL REVIEW B
LA English
DT Article
ID SPIN-DENSITY WAVES; CRITICAL-FIELD HC2; CHARGE-DENSITY; TEMPERATURE;
RESISTIVITY; DYNAMICS
AB We report the discovery of superconductivity in Nb3PdxSe7 with an x-dependent superconducting transition temperature as high as T-c similar or equal to 2.1 K for x similar or equal to 0.7 (middle point of the resistive transition). Needlelike single crystals display anisotropic upper-critical fields with an anisotropy gamma = H-c2(b)/H-c2(a) as large as 6 between fields applied along their needle axis (or b axis) or along the a axis. As for the Fe based superconductors gamma is temperature-dependent, suggesting that Nb3Pd0.7Se7 is a multiband superconductor. This is supported by band structure calculations which reveal a Fermi surface composed of quasi-one-dimensional and quasi-two-dimensional sheets of hole character, as well as three-dimensional sheets of both hole and electron character. Remarkably, H-c2(b) is observed to saturate at H-c2(b) (T -> 0 K) similar or equal to 14.1 T which is 4.26 x H-p where H-p is the Pauli-limiting field in the weak-coupling regime. The synthesis procedure yields additional crystals belonging to the Nb2PdxSe5 phase which also becomes superconducting when the fraction of Pd is varied. For both phases we find that superconductivity condenses out of an anomalous metallic state, i.e., displaying partial derivative rho/partial derivative T < 0 above T-c similarly to what is observed in the pseudogap phase of the underdoped cuprates. An anomalous metallic state, low-dimensionality, multiband character, extremely high and anisotropic H-c2's are all ingredients for unconventional superconductivity.
C1 [Zhang, Q. R.; Rhodes, D.; Zeng, B.; Besara, T.; Siegrist, T.; Balicas, L.] Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32310 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 Zhang, QR (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;
OI Zeng, Bin/0000-0002-0090-4371; Besara, Tiglet/0000-0002-2143-2254
FU DOE-BES [DE-SC0002613, DE-SC0008832]; FSU; NSF [NSF-DMR-0084173]; State
of Florida; Office of Naval Research (ONR) through the Naval Research
Laboratory's Basic Research Program
FX L.B. is supported by DOE-BES through Grant No. DE-SC0002613. T.B. and
T.S. are supported by DOE-BES through Grant No. DE-SC0008832, and by
FSU. The NHMFL is supported by NSF through NSF-DMR-0084173 and the State
of Florida. Funding for M.D.J. was provided by the Office of Naval
Research (ONR) through the Naval Research Laboratory's Basic Research
Program.
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PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
EI 1550-235X
J9 PHYS REV B
JI Phys. Rev. B
PD JUL 15
PY 2013
VL 88
IS 2
AR 024508
DI 10.1103/PhysRevB.88.024508
PG 9
WC Physics, Condensed Matter
SC Physics
GA 183SV
UT WOS:000321838400007
ER
PT J
AU Adamczyk, L
Adkins, JK
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, C
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
Flores, E
Gagliardi, CA
Gangadharan, DR
Garand, D
Geurts, F
Gibson, A
Gliske, S
Gorbunov, YN
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
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
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
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
Poljak, N
Porter, J
Poskanzer, AM
Powell, CB
Pruneau, C
Pruthi, NK
Przybycien, M
Pujahari, PR
Putschke, J
Qiu, H
Quintero, A
Ramachandran, S
Raniwala, R
Raniwala, S
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.
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, 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.
Flores, E.
Gagliardi, C. A.
Gangadharan, D. R.
Garand, D.
Geurts, F.
Gibson, A.
Gliske, S.
Gorbunov, Y. N.
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.
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.
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.
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.
Poljak, N.
Porter, J.
Poskanzer, A. M.
Powell, C. B.
Pruneau, C.
Pruthi, N. K.
Przybycien, M.
Pujahari, P. R.
Putschke, J.
Qiu, H.
Quintero, A.
Ramachandran, S.
Raniwala, R.
Raniwala, S.
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 Third harmonic flow of charged particles in Au plus Au collisions at
root s(NN)=200 GeV
SO PHYSICAL REVIEW C
LA English
DT Article
ID TIME PROJECTION CHAMBER; MODEL; STAR
AB We report measurements of the third harmonic coefficient of the azimuthal anisotropy, upsilon(3), known as triangular flow. The analysis is for charged particles in Au + Au collisions at root s(NN) = 200 GeV, based on data from the STAR experiment at the BNL Relativistic Heavy Ion Collider. Two-particle correlations as a function of their pseudorapidity separation are fit with narrow and wide Gaussians. Measurements of triangular flow are extracted from the wide Gaussian, from two-particle cumulants with a pseudorapidity gap, and also from event plane analysis methods with a large pseudorapidity gap between the particles and the event plane. These results are reported as a function of transverse momentum and centrality. A large dependence on the pseudorapidity gap is found. Results are compared with other experiments and model calculations.
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.; 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.; Yang, Y.; 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.; 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.
[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.; 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, 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.; Quintero, A.; 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.; 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.] 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.; 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.
[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, 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.
[Codrington, M. J. M.; Leyva, A. Davila; Hoffmann, G. W.; Markert, C.; Oldag, E. W.; 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.; 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 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; Xu, Wenqin/H-7553-2014; Voloshin,
Sergei/I-4122-2013; Pandit, Yadav/I-2170-2013; XIAO,
Zhigang/C-3788-2015; 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
OI 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; Xu, Wenqin/0000-0002-5976-4991; 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
FU RHIC Operations Group at BNL; 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; CNRS/IN2P3; FAPESP CNPq of Brazil;
Ministry of Education and Science 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 Science and
Higher Education; National Research Foundation [NRF-2012004024];
Ministry of Science, Education and Sports of the Republic of Croatia;
RosAtom of Russia
FX For supplying data and model calculations we thank Ante Bilandzic
(ALICE), Kevin Dusling (glasma model), Fernando Gardim (NeXSPheRIO),
Jiangyong Jia (ATLAS), Che-Ming Ko (AMPT), Volodya Konchakovski (PHSD),
Bjoern Schenke (hydro), Raimond Snellings (ALICE), and Jun Xu (AMPT). We
also benefited greatly from conversations with Jean-Yves Ollitrault,
Rajeev Bhalerao, and Kevin Dusling. 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 54
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U1 1
U2 49
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0556-2813
EI 1089-490X
J9 PHYS REV C
JI Phys. Rev. C
PD JUL 15
PY 2013
VL 88
IS 1
AR 014904
DI 10.1103/PhysRevC.88.014904
PG 11
WC Physics, Nuclear
SC Physics
GA 183TE
UT WOS:000321839300002
ER
PT J
AU Cleveland, ER
Ruppalt, LB
Bennett, BR
Prokes, SM
AF Cleveland, Erin R.
Ruppalt, Laura B.
Bennett, Brian R.
Prokes, S. M.
TI Effect of an in situ hydrogen plasma pre-treatment on the reduction of
GaSb native oxides prior to atomic layer deposition
SO APPLIED SURFACE SCIENCE
LA English
DT Article
DE GaSb; Hydrogen plasma; Atomic layer deposition; TMA; XPS; III-V
semiconductors
ID COMPOUND SEMICONDUCTORS; SURFACE PASSIVATION
AB The influence of an in situ hydrogen plasma pre-treatment on the modification of native oxides of GaSb surfaces prior to atomic layer deposition (ALD) is presented. The effects of varying rf-plasma power, exposure time, and substrate temperature have been characterized by atomic force microscopy (AFM), ex situ X-ray photoelectron spectroscopy (XPS), as well as capacitance-voltage (C-V) measurements on fabricated devices. Results indicate that a completely oxide free surface may not be necessary to produce a good electrical interface with a subsequent ALD Al2O3 dielectric; the most effective hydrogen plasma treatments resulted in the absence of Sb-oxides, a reduction in elemental Sb, and an increase in the Ga2O3 content at the interface. The use of an in situ hydrogen plasma pre-treatment eliminates the need for wet chemical etches and may also be relevant to the deposition of other high-k dielectrics, making it a promising technique for realizing high performance Sb-based MOS-devices. (c) 2013 Elsevier B.V. All rights reserved.
C1 [Cleveland, Erin R.; Ruppalt, Laura B.; Bennett, Brian R.; Prokes, S. M.] USN, Div Elect Sci & Technol, Res Lab, Washington, DC USA.
RP Cleveland, ER (reprint author), USN, Div Elect Sci & Technol, Res Lab, Washington, DC USA.
EM erin.cleveland.ctr@nrl.navy.mil
RI Bennett, Brian/A-8850-2008
OI Bennett, Brian/0000-0002-2437-4213
FU Office of Naval Research
FX This work was supported by the Office of Naval Research. The authors
thank James Champlain and Vic Bermudez for valuable insight and
discussion, James Culbertson for AFM and Brad Pate for XPS training and
guidance.
NR 27
TC 21
Z9 22
U1 0
U2 34
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0169-4332
EI 1873-5584
J9 APPL SURF SCI
JI Appl. Surf. Sci.
PD JUL 15
PY 2013
VL 277
BP 167
EP 175
DI 10.1016/j.apsusc.2013.04.018
PG 9
WC Chemistry, Physical; Materials Science, Coatings & Films; Physics,
Applied; Physics, Condensed Matter
SC Chemistry; Materials Science; Physics
GA 161QN
UT WOS:000320208500025
ER
PT J
AU Lindley, BS
Schwartz, IB
AF Lindley, Brandon S.
Schwartz, Ira B.
TI An iterative action minimizing method for computing optimal paths in
stochastic dynamical systems
SO PHYSICA D-NONLINEAR PHENOMENA
LA English
DT Article
DE Stochastic dynamical systems; Transition-path theory; Optimal paths;
Stochastic differential equations
ID LAGRANGIAN COHERENT STRUCTURES; EXTINCTION; TIME; EPIDEMICS; DRIVEN;
MODELS; FLOWS
AB We present a numerical method for computing optimal transition pathways and transition rates in systems of stochastic differential equations (SDEs). In particular, we compute the most probable transition path of stochastic equations by minimizing the effective action in a corresponding deterministic Hamiltonian system. The numerical method presented here involves using an iterative scheme for solving a two-point boundary value problem for the Hamiltonian system. We validate our method by applying it to both continuous stochastic systems, such as nonlinear oscillators governed by the Duffing equation, and finite discrete systems, such as epidemic problems, which are governed by a set of master equations. Furthermore, we demonstrate that this method is capable of dealing with stochastic systems of delay differential equations. Published by Elsevier B.V.
C1 [Lindley, Brandon S.; Schwartz, Ira B.] USN, Res Lab, Div Plasma Phys, Nonlinear Syst Dynam Sect, Washington, DC 20375 USA.
RP Lindley, BS (reprint author), USN, Res Lab, Div Plasma Phys, Nonlinear Syst Dynam Sect, Code 6792, Washington, DC 20375 USA.
EM brandon.lindley.ctr@nrl.navy.mil
FU Office of Naval Research [N0001412WX20083]; NRL Base Research Program
[N0001412WX30002]
FX The authors gratefully acknowledge the Office of Naval Research for
their support under N0001412WX20083, and support of the NRL Base
Research Program N0001412WX30002. Brandon Lindley is currently an NRC
Postdoctoral Fellow. We thank Lora Billings for providing the Monte
Carlo data used in Figs. 7 and 10, and Eric Forgoston for a preliminary
reading of this manuscript.
NR 46
TC 12
Z9 12
U1 1
U2 15
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0167-2789
J9 PHYSICA D
JI Physica D
PD JUL 15
PY 2013
VL 255
BP 22
EP 30
DI 10.1016/j.physd.2013.04.001
PG 9
WC Mathematics, Applied; Physics, Multidisciplinary; Physics, Mathematical
SC Mathematics; Physics
GA 174KU
UT WOS:000321155100003
ER
PT J
AU Bermudez, VM
AF Bermudez, V. M.
TI The effects of the initial stages of native-oxide formation on the
surface properties of GaSb (001)
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID RAY PHOTOEMISSION-SPECTROSCOPY; AUGER-ELECTRON-SPECTROSCOPY;
PHOTOELECTRON-SPECTROSCOPY; III-V; OXIDATION; HYDROGEN; GAAS;
BETA-GA2O3; STATES; SEMICONDUCTORS
AB Atomically clean surfaces of n-type GaSb (001) have been prepared by a combination of ex-situ wet-chemical treatment in HCl and in-situ annealing in a flux of H atoms in ultra-high vacuum (UHV). The surfaces are exposed to "excited" O-2 and studied using primarily x-ray photoelectron spectroscopy. Low O-2 exposures, up to similar to 3 x 10(3) Langmuirs (L), result in a partial passivation of electrically active defects as shown by a decrease in upward band bending. Adsorption of O2 in this exposure range appears to form mainly Ga+1 sites, with little or no indication of Ga+3, and saturates at an O coverage of similar to 0.2-0.3 monolayers. For exposures of similar to 10(4) L or higher, oxidation occurs through insertion into Ga-Sb bonds as indicated by the onset of Ga+3 as well as of Sb+4 and/or Sb+5 together with the appearance of an O 1s feature. Defects resulting from this process cause a reversal of the band-bending change seen for smaller exposures. Data obtained for the composition of a native oxide formed in situ in UHV are compared with those for a "practical" surface produced by processing under ambient conditions. These results suggest an optimum procedure for forming a Ga2O3 layer prior to the growth by atomic layer deposition of an Al2O3 layer.
C1 Naval Res Lab, Div Elect Sci & Technol, Washington, DC 20375 USA.
RP Bermudez, VM (reprint author), Naval Res Lab, Div Elect Sci & Technol, 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. R. Magno is
thanked for providing the GaSb homoepitaxial samples, and L. B. Ruppalt
is thanked for helpful comments on the manuscript.
NR 57
TC 10
Z9 10
U1 4
U2 30
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-8979
EI 1089-7550
J9 J APPL PHYS
JI J. Appl. Phys.
PD JUL 14
PY 2013
VL 114
IS 2
AR 024903
DI 10.1063/1.4812740
PG 11
WC Physics, Applied
SC Physics
GA 182RM
UT WOS:000321761600062
ER
PT J
AU Mazin, II
Manni, S
Foyevtsova, K
Jeschke, HO
Gegenwart, P
Valenti, R
AF Mazin, I. I.
Manni, S.
Foyevtsova, K.
Jeschke, Harald O.
Gegenwart, P.
Valenti, Roser
TI Origin of the insulating state in honeycomb iridates and rhodates
SO PHYSICAL REVIEW B
LA English
DT Article
ID SEMICONDUCTORS; METALS
AB burning question in the emerging field of spin-orbit driven insulating iridates, such as Na2IrO3 and Li2IrO3, is whether the observed insulating state should be classified as a Mott-Hubbard insulator derived from a half-filled relativistic j(eff) = 1/2 band or as a band insulator where the gap is assisted by spin-orbit interaction or Coulomb correlations or both. The difference between these two interpretations is that only for the former strong spin-orbit coupling (lambda greater than or similar to W, whereW is the bandwidth) is essential. We have synthesized the isostructural and isoelectronic Li2RhO3 and report its electrical resistivity and magnetic susceptibility. Remarkably, it shows insulating behavior together with fluctuating effective S = 1/2 moments, similar to Na2IrO3 and Li2IrO3, although in Rh4+ (4d(5)) the spin-orbit coupling is greatly reduced. We show that this behavior has a nonrelativistic one-electron origin (although Coulomb correlations assist in opening the gap) and can be traced to the formation of quasimolecular orbitals, similar to those in Na2IrO3.
C1 [Mazin, I. I.] USN, Res Lab, Washington, DC 20375 USA.
[Manni, S.; Gegenwart, P.] Univ Gottingen, Inst Phys 1, D-37077 Gottingen, Germany.
[Foyevtsova, K.; Jeschke, Harald O.; Valenti, Roser] Goethe Univ Frankfurt, Inst Theoret Phys, D-60438 Frankfurt, Germany.
RP Mazin, II (reprint author), USN, Res Lab, Code 6393, Washington, DC 20375 USA.
RI Jeschke, Harald/C-3507-2009; Manni, Soham/G-1455-2016; Gegenwart,
Philipp/A-7291-2017
OI Jeschke, Harald/0000-0002-8091-7024; Manni, Soham/0000-0001-6279-3497;
FU Deutsche Forschungsgemeinschaft [SFB/TR 49, FOR 1346]; Helmholtz
Association [VI-521]; Erasmus Mundus Eurindia; Office of Naval Research
(ONR); Naval Research Laboratory's Basic Research Program; Alexander von
Humboldt Foundation
FX We thank Yogesh Singh and Radu Coldea for collaboration and valuable
discussions. R.V. and H.O.J. acknowledge support by the Deutsche
Forschungsgemeinschaft through Grants No. SFB/TR 49 and No. FOR 1346.
Work in G ottingen is supported by the Helmholtz Association through
Project No. VI-521. S.M. acknowledges support from the Erasmus Mundus
Eurindia Project. I.I.M. acknowledges funding from the Office of Naval
Research (ONR) through the Naval Research Laboratory's Basic Research
Program, and from the Alexander von Humboldt Foundation.
NR 37
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U1 3
U2 52
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 JUL 12
PY 2013
VL 88
IS 3
AR 035115
DI 10.1103/PhysRevB.88.035115
PG 6
WC Physics, Condensed Matter
SC Physics
GA 183SK
UT WOS:000321837300001
ER
PT J
AU Cress, CD
Datta, S
AF Cress, Cory D.
Datta, Suman
TI Nanoscale Transistors-Just Around the Gate?
SO SCIENCE
LA English
DT Editorial Material
ID WALLED CARBON NANOTUBES
C1 [Cress, Cory D.] US Naval Res Lab, Elect Sci & Technol Div, Washington, DC 20375 USA.
[Datta, Suman] Penn State Univ, Dept Elect Engn, University Pk, PA 16802 USA.
RP Cress, CD (reprint author), US Naval Res Lab, Elect Sci & Technol Div, Washington, DC 20375 USA.
EM cory.cress@nrl.navy.mil; sdatta@engr.psu.edu
OI Cress, Cory/0000-0001-7563-6693
NR 15
TC 17
Z9 17
U1 4
U2 62
PU AMER ASSOC ADVANCEMENT SCIENCE
PI WASHINGTON
PA 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 USA
SN 0036-8075
J9 SCIENCE
JI Science
PD JUL 12
PY 2013
VL 341
IS 6142
BP 140
EP 141
DI 10.1126/science.1240452
PG 2
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 185KA
UT WOS:000321965300031
PM 23846898
ER
PT J
AU Hu, X
Compton, JR
AbdulHameed, MDM
Marchand, CL
Robertson, KL
Leary, DH
Jadhav, A
Hershfield, JR
Wallqvist, A
Friedlander, AM
Legler, PM
AF Hu, Xin
Compton, Jaimee R.
AbdulHameed, Mohamed Diwan M.
Marchand, Charles L.
Robertson, Kelly L.
Leary, Dagmar H.
Jadhav, Ajit
Hershfield, Jeremy R.
Wallqvist, Anders
Friedlander, Arthur M.
Legler, Patricia M.
TI 3-Substituted lndole Inhibitors Against Francisella tularensis Fabl
Identified by Structure-Based Virtual Screening
SO JOURNAL OF MEDICINAL CHEMISTRY
LA English
DT Article
ID CARRIER PROTEIN REDUCTASE; ENOYL-ACP REDUCTASE; RESISTANCE-DETERMINING
REGION; IN-VITRO ACTIVITY; ESCHERICHIA-COLI; STREPTOCOCCUS-PNEUMONIAE;
STAPHYLOCOCCUS-AUREUS; YERSINIA-PESTIS; MYCOBACTERIUM-TUBERCULOSIS;
ANTIBACTERIAL AGENTS
AB In this study, we describe novel inhibitors against Francisella tularensis SchuS4 FabI identified from structure-based in silico screening with integrated molecular dynamics simulations to account for induced fit of a flexible loop crucial for inhibitor binding. Two 3-substituted indoles, 54 and 57, preferentially bound the NAD(+) form of the enzyme and inhibited growth of F. tularensis SchuS4 at concentrations near that of their measured K-i. While 57 was species-specific, 54 showed a broader spectrum of growth inhibition against F. tularensis, Bacillus anthracis, and Staphylococcus aureus. Binding interaction analysis in conjunction with site-directed mutagenesis revealed key residues and elements that contribute to inhibitor binding and species specificity. Mutation of Arg-96, a poorly conserved residue opposite the loop, was unexpectedly found to enhance inhibitor binding in the R96G and R96M variants. This residue may affect the stability and closure of the flexible loop to enhance inhibitor (or substrate) binding.
C1 [Compton, Jaimee R.; Robertson, Kelly L.; Leary, Dagmar H.; Legler, Patricia M.] USN, Ctr Biomol Sci & Engn, Res Labs, Washington, DC 20375 USA.
[Compton, Jaimee R.] Nova Res Inc, Alexandria, VA 22308 USA.
[Hu, Xin; Jadhav, Ajit] Natl Ctr Adv Translat Sci, NIH Chem Genom Ctr, Rockville, MD 20850 USA.
[Marchand, Charles L.; Hershfield, Jeremy R.; Friedlander, Arthur M.] USA, Med Res Inst Infect Dis, Frederick, MD 21702 USA.
[AbdulHameed, Mohamed Diwan M.; Wallqvist, Anders] USA, Biotechnol HPC Software Applicat Inst, Telemed & Adv Technol Res Ctr, Med Res & Mat Command, Ft Detrick, MD 21702 USA.
RP Legler, PM (reprint author), USN, Ctr Biomol Sci & Engn, Res Labs, Washington, DC 20375 USA.
EM patricia.legler@nrl.navy.mil
RI AbdulHameed, Mohamed Diwan M/O-3088-2015
OI AbdulHameed, Mohamed Diwan M/0000-0003-1483-4084
FU U.S. Defense Threat Reduction Agency [TMTI0004_09_BH_T,
CBM.THERB.02.11.RD.012]
FX We would like to acknowledge Greg Tawa for helpful discussions and Peter
J. Tonge for supplying the initial plasmid DNA construct. We would also
like to acknowledge Lynda Miller and Stephanie Halasohoris for excellent
technical help. This work was funded by the U.S. Defense Threat
Reduction Agency awards TMTI0004_09_BH_T and CBM.THERB.02.11.RD.012. The
opinions or assertions contained herein belong to the authors and are
not necessarily the official views of the U.S. Army, U.S. Navy or the
U.S. Department of Defense.
NR 74
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U1 1
U2 10
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 JUL 11
PY 2013
VL 56
IS 13
BP 5275
EP 5287
DI 10.1021/jm4001242
PG 13
WC Chemistry, Medicinal
SC Pharmacology & Pharmacy
GA 184IV
UT WOS:000321884200005
PM 23815100
ER
PT J
AU Casalini, R
Tsang, SW
Deininger, JJ
Arroyave, FA
Reynolds, JR
So, F
AF Casalini, Riccardo
Tsang, Sai Wing
Deininger, James J.
Arroyave, Frank A.
Reynolds, John R.
So, Franky
TI Investigation of the Role of the Acceptor Molecule in Bulk
Heterojunction Photovoltaic Cells Using Impedance Spectroscopy
SO JOURNAL OF PHYSICAL CHEMISTRY C
LA English
DT Article
ID OPEN-CIRCUIT VOLTAGE; SOLAR-CELLS; BIMOLECULAR RECOMBINATION; POLYMER;
DONOR; CONVERSION
AB An investigation of the recombination kinetics and the density of states distribution in bulk heterojunction organic photovoltaic cells was undertaken using impedance spectroscopy measurements under varying levels of illuminations. Three organic polymer solar cells were investigated which differed only by the p-type polymer used in the active layers while the device architecture and acceptor molecule (PC70BM) were kept the same. We found that the density of states profiles for the three cells are similar and can be superimposed by a horizontal shift due to a difference between the polymers' HOMO and the PC70BM's LUMO levels. The recombination mechanisms for the three cells showed the same behavior, suggesting an important role of the acceptor in this process however, large differences in the absolute value of carrier lifetime tau(eff) related to the choice of the polymer are evident, indicating that the recombination kinetics depends on a combination of the properties of both materials and the morphology of their blend.
C1 [Casalini, Riccardo] USN, Res Lab, Div Chem, Washington, DC 20375 USA.
[Reynolds, John R.] Georgia Inst Technol, Sch Mat Sci & Engn, Sch Chem & Biochem, Atlanta, GA 30332 USA.
[Tsang, Sai Wing; So, Franky] Univ Florida, Dept Mat Sci & Engn, Gainesville, FL 32611 USA.
[Arroyave, Frank A.] Univ Florida, Dept Chem, Gainesville, FL 32611 USA.
RP Casalini, R (reprint author), USN, Res Lab, Div Chem, Code 6120, Washington, DC 20375 USA.
EM riccardo.casalini@nrl.navy.mil
RI Arroyave, Frank/K-6568-2014;
OI Arroyave, Frank/0000-0002-9227-5428; TSANG, Sai Wing
/0000-0003-0788-4905
FU Office of Naval Research [N0001411WX21295, N000141110245]
FX R.C. acknowledges the support of the Office of Naval Research (grant
N0001411WX21295). J.R.R. and F.S. acknowledge the support of the Office
of Naval Research (contract N000141110245) for the fabrication and
characterization of the polymer solar cells used in this work.
NR 16
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U1 1
U2 38
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 JUL 11
PY 2013
VL 117
IS 27
BP 13798
EP 13804
DI 10.1021/jp401435s
PG 7
WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science,
Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 184IP
UT WOS:000321883600005
ER
PT J
AU Horton, JL
Jacobson, IG
Littman, AJ
Alcaraz, JE
Smith, B
Crum-Cianflone, NF
AF Horton, Jaime L.
Jacobson, Isabel G.
Littman, Alyson J.
Alcaraz, John E.
Smith, Besa
Crum-Cianflone, Nancy F.
TI The impact of deployment experience and prior healthcare utilization on
enrollment in a large military cohort study
SO BMC MEDICAL RESEARCH METHODOLOGY
LA English
DT Article
ID MILLENNIUM COHORT; NONRESPONSE BIAS; MENTAL-DISORDERS; SELECTION BIAS;
FOLLOW-UP; DETERMINANTS; POPULATION; OUTCOMES; SERVICE; IRAQ
AB Background: Longitudinal cohort studies are highly valued in epidemiologic research for their ability to establish exposure-disease associations through known temporal sequences. A major challenge in cohort studies is recruiting individuals representative of the targeted sample population to ensure the generalizability of the study's findings.
Methods: We evaluated nearly 350,000 invited subjects (from 2004-2008) of the Millennium Cohort Study, a prospective cohort study of the health of US military personnel, for factors prior to invitation associated with study enrollment. Multivariable logistic regression was utilized, adjusting for demographic and other confounders, to determine the associations between both deployment experience and prior healthcare utilization with enrollment into the study.
Results: Study enrollment was significantly greater among those who deployed prior to and/or during the enrollment cycles or had at least one outpatient visit in the 12 months prior to invitation. Mental disorders and hospitalization for more than two days within the past year were associated with reduced odds of enrollment.
Conclusions: These findings suggest differential enrollment by deployment experience and health status, and may help guide recruitment efforts in future studies.
C1 [Horton, Jaime L.; Jacobson, Isabel G.; Smith, Besa; Crum-Cianflone, Nancy F.] Naval Hlth Res Ctr, Deployment Hlth Res Dept, San Diego, CA 92106 USA.
[Littman, Alyson J.] Seattle Epidemiol Res & Informat Ctr, Dept Vet Affairs Puget Sound Healthcare Syst, Seattle, WA 98108 USA.
[Littman, Alyson J.] Univ Washington, Dept Epidemiol, Seattle, WA 98195 USA.
[Littman, Alyson J.; Crum-Cianflone, Nancy F.] San Diego State Univ, San Diego, CA 92182 USA.
RP Horton, JL (reprint author), Naval Hlth Res Ctr, Deployment Hlth Res Dept, 140 Sylvester Rd, San Diego, CA 92106 USA.
EM jaime.horton@med.navy.mil
FU VA Rehabilitation R&D Career Development Award [6982]; Military
Operational Medicine Research Program of the US Army Medical Research
and Materiel Command, Fort Detrick, Maryland; Department of Defense
[60002]
FX The Millennium Cohort Study is funded through the Military Operational
Medicine Research Program of the US Army Medical Research and Materiel
Command, Fort Detrick, Maryland. Dr. Littman's involvement was supported
by resources from the VA Puget Sound Health Care System, Seattle,
Washington. Dr. Littman was also supported by a VA Rehabilitation R&D
Career Development Award (# 6982).; This represents report 12-54,
supported by the Department of Defense, under work unit no. 60002. The
views expressed in this article 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 the Air Force, Department of
Defense, Department of Veterans Affairs, or the US Government. This
research has been conducted in compliance with all applicable federal
regulations governing the protection of human subjects in research
(Protocol NHRC. 2000.0007).
NR 39
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U1 1
U2 5
PU BIOMED CENTRAL LTD
PI LONDON
PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND
SN 1471-2288
J9 BMC MED RES METHODOL
JI BMC Med. Res. Methodol.
PD JUL 11
PY 2013
VL 13
AR 90
DI 10.1186/1471-2288-13-90
PG 10
WC Health Care Sciences & Services
SC Health Care Sciences & Services
GA 183RH
UT WOS:000321834400001
PM 23844762
ER
PT J
AU Layman, CN
Naify, CJ
Martin, TP
Calvo, DC
Orris, GJ
AF Layman, Christopher N.
Naify, Christina J.
Martin, Theodore P.
Calvo, David C.
Orris, Gregory J.
TI Highly Anisotropic Elements for Acoustic Pentamode Applications
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID NEGATIVE-INDEX; METAMATERIAL; CLOAKING
AB Pentamode metamaterials are a class of acoustic metafluids that are characterized by a divergence free modified stress tensor. Such materials have an unconventional anisotropic stiffness and isotropic mass density, which allow themselves to mimic other fluid domains. Here we present a pentamode design formed by an oblique honeycomb lattice and producing customizable anisotropic properties. It is shown that anisotropy in the stiffness can exceed 3 orders of magnitude, and that it can be realistically tailored for transformation acoustic applications.
C1 [Layman, Christopher N.; Naify, Christina J.] CNR, Washington, DC 20001 USA.
[Martin, Theodore P.; Calvo, David C.; Orris, Gregory J.] USN, Res Lab, Washington, DC 20375 USA.
RP Layman, CN (reprint author), CNR, Washington, DC 20001 USA.
EM christopher.layman.ctr@nrl.navy.mil
RI Martin, Theodore/H-1287-2016
FU Office of Naval Research
FX This work was supported by the Office of Naval Research. We acknowledge
useful discussions with Andy Norris, Jeff Cipolla, and Nachiket Gokhale.
NR 28
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U2 41
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 JUL 10
PY 2013
VL 111
IS 2
AR 024302
DI 10.1103/PhysRevLett.111.024302
PG 5
WC Physics, Multidisciplinary
SC Physics
GA 182PA
UT WOS:000321755000004
PM 23889408
ER
PT J
AU Farrell, M
Sebeny, P
Klena, JD
DeMattos, C
Pimentel, G
Turner, M
Joseph, A
Espiritu, J
Zumwalt, J
Dueger, E
AF Farrell, Margaret
Sebeny, Peter
Klena, John D.
DeMattos, Cecilia
Pimentel, Guillermo
Turner, Mark
Joseph, Antony
Espiritu, Jennifer
Zumwalt, John
Dueger, Erica
TI Influenza Risk Management: Lessons Learned from an A(H1N1) pdm09
Outbreak Investigation in an Operational Military Setting
SO PLOS ONE
LA English
DT Article
ID VIRUSES
AB Background: At the onset of an influenza pandemic, when the severity of a novel strain is still undetermined and there is a threat of introduction into a new environment, e. g., via the deployment of military troops, sensitive screening criteria and conservative isolation practices are generally recommended.
Objectives: In response to elevated rates of influenza-like illness among U. S. military base camps in Kuwait, U. S. Naval Medical Research Unit No. 3 partnered with local U. S. Army medical units to conduct an A(H1N1) pdm09 outbreak investigation.
Patients/Methods: Initial clinical data and nasal specimens were collected via the existent passive surveillance system and active surveillance was conducted using a modified version of the World Health Organization/U.S. Centers for Disease Control and Prevention influenza-like illness case definition [fever (T > 100.5 degrees F/38 degrees C) in addition to cough and/or sore throat in the previous 72 hours] as the screening criteria. Samples were tested via real-time reverse-transcription PCR and sequenced for comparison to global A(H1N1) pdm09 viruses from the same time period.
Results: The screening criteria used in Kuwait proved insensitive, capturing only 16% of A(H1N1) pdm09-positive individuals. While still not ideal, using cough as the sole screening criteria would have increased sensitivity to 73%.
Conclusions: The results of and lessons learned from this outbreak investigation suggest that pandemic influenza risk management should be a dynamic process (as information becomes available regarding true attack rates and associated mortality, screening and isolation criteria should be re-evaluated and revised as appropriate), and that military operational environments present unique challenges to influenza surveillance.
C1 [Farrell, Margaret; Dueger, Erica] US Amer Naval Med Res Unit, Global Dis Detect & Response Program, Cairo, Egypt.
[Sebeny, Peter; Klena, John D.] US Naval Med Res Unit 3, Clin Trials & Mil Studies Dept, Cairo, Egypt.
[DeMattos, Cecilia] Naval Hlth Res Ctr, San Diego, CA USA.
[DeMattos, Cecilia; Pimentel, Guillermo] US Naval Med Res Unit 3, Viral & Zoonot Dis Res Program, Cairo, Egypt.
[Turner, Mark] Naval Hosp Bremerton, Bremerton, WA USA.
[Joseph, Antony] Naval Med Ctr San Diego, Navy Environm & Preventat Med Unit, San Diego, CA USA.
[Espiritu, Jennifer] US Ctr Dis Control & Prevent, Epidem Intelligence Serv Program, Atlanta, GA USA.
[Zumwalt, John] Navy Hosp Jacksonville, Naval Air Stn Jacksonville, Jacksonville, FL USA.
[Dueger, Erica] US Ctr Dis Control & Prevent, Global Dis Detect Branch, Atlanta, GA USA.
RP Farrell, M (reprint author), US Amer Naval Med Res Unit, Global Dis Detect & Response Program, Cairo, Egypt.
EM marleefar@gmail.com
OI Pimentel, Guillermo/0000-0003-2464-1526
FU Global Emerging Infections Surveillance and Response System (GEIS); CDC
Global Disease Detection and Response Program (GDDRP)
FX This work was supported by the Global Emerging Infections Surveillance
and Response System (GEIS, http://www.afhsc.mil/geis) and the CDC Global
Disease Detection and Response Program (GDDRP,
http://www.cdc.gov/globalhealth/gdder/). The funders had no role in
study design, data collection and analysis, decision to publish, or
preparation of the manuscript.
NR 20
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U1 1
U2 5
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 JUL 10
PY 2013
VL 8
IS 7
AR e68639
DI 10.1371/journal.pone.0068639
PG 7
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 182SU
UT WOS:000321765300058
PM 23874699
ER
PT J
AU Masson, S
Antiochos, SK
DeVore, CR
AF Masson, S.
Antiochos, S. K.
DeVore, C. R.
TI A MODEL FOR THE ESCAPE OF SOLAR-FLARE-ACCELERATED PARTICLES
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE magnetohydrodynamics (MHD); methods: numerical; Sun: coronal mass
ejections (CMEs); Sun: flares; Sun: magnetic topology; Sun: particle
emission
ID CORONAL MASS EJECTIONS; FIELD LINE SHRINKAGE; X-RAY; MAGNETIC
RECONNECTION; ENERGETIC PARTICLES; NULL-POINT; NUMERICAL SIMULATIONS;
BREAKOUT MODEL; FLUX EMERGENCE; 3 DIMENSIONS
AB We address the problem of how particles are accelerated by solar flares can escape into the heliosphere on timescales of an hour or less. Impulsive solar energetic particle (SEP) bursts are generally observed in association with so-called eruptive flares consisting of a coronal mass ejection (CME) and a flare. These fast SEPs are believed to be accelerated directly by the flare, rather than by the CME shock. However, the precise mechanism by which the particles are accelerated remains controversial. Regardless of the origin of the acceleration, the particles should remain trapped in the closed magnetic fields of the coronal flare loops and the ejected flux rope, given the magnetic geometry of the standard eruptive-flare model. In this case, the particles would reach the Earth only after a delay of many hours to a few days (coincident with the bulk ejecta arriving at Earth). We propose that the external magnetic reconnection intrinsic to the breakout model for CME initiation can naturally account for the prompt escape of flare-accelerated energetic particles onto open interplanetary magnetic flux tubes. We present detailed 2.5-dimensional magnetohydrodynamic simulations of a breakout CME/flare event with a background isothermal solar wind. Our calculations demonstrate that if the event occurs sufficiently near a coronal-hole boundary, interchange reconnection between open and closed fields can occur. This process allows particles from deep inside the ejected flux rope to access solar wind field lines soon after eruption. We compare these results to standard observations of impulsive SEPs and discuss the implications of the model on further observations and calculations.
C1 [Masson, S.; Antiochos, S. K.] NASA, Goddard Space Flight Ctr, Space Weather Lab, Greenbelt, MD 20771 USA.
[DeVore, C. R.] Naval Res Lab, Lab Computat Phys & Fluid Dynam, Washington, DC 20375 USA.
RP Masson, S (reprint author), NASA, Goddard Space Flight Ctr, Space Weather Lab, 8800 Greenbelt Rd, Greenbelt, MD 20771 USA.
EM sophie.masson@nasa.gov
RI Antiochos, Spiro/D-4668-2012; DeVore, C/A-6067-2015
OI Antiochos, Spiro/0000-0003-0176-4312; DeVore, C/0000-0002-4668-591X
FU NASA
FX S.M. gratefully acknowledges support from the NASA Post-doctoral
Program, administered by Oak Ridge Associated Universities through a
contract with NASA, during her stay at NASA Goddard Space Flight Center.
This work was supported, in part, by the NASA TR&T and SR&T Programs.
NR 98
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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
J9 ASTROPHYS J
JI Astrophys. J.
PD JUL 10
PY 2013
VL 771
IS 2
AR 82
DI 10.1088/0004-637X/771/2/82
PG 15
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 176XS
UT WOS:000321340700007
ER
PT J
AU Olmedo, O
Zhang, J
Kunkel, V
AF Olmedo, Oscar
Zhang, Jie
Kunkel, Valbona
TI LORENTZ SELF-FORCE OF AN ELLIPSE CURRENT LOOP MODEL
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE magnetic fields; Sun: coronal mass ejections (CMEs); Sun: magnetic
topology
ID CORONAL MASS EJECTION; MAGNETIC-FLUX ROPE; LASCO; PROPAGATION; EIT
AB In this work, the Lorentz self-force of an ellipse current loop model is derived. We are motivated by the fact that it has been reported in the literature that coronal mass ejection morphology can resemble an ellipse in the field of view of coronagraph images. Deriving the Lorentz self-force using an ellipse geometry has the advantage of being able to be solved analytically, as opposed to other more complex geometries. The derived ellipse model is compared with the local curvature approximation, where the Lorentz self-force at the ellipse major/minor axis is compared with the Lorentz self-force of a torus with curvature equal to the local curvature at the ellipses major/minor axis. It is found that the local curvature approximation is valid for moderate values of eccentricity.
C1 [Olmedo, Oscar] Naval Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Zhang, Jie; Kunkel, Valbona] George Mason Univ, Sch Phys Astron & Computat Sci, Fairfax, VA 22030 USA.
RP Olmedo, O (reprint author), Naval Res Lab, Div Space Sci, Washington, DC 20375 USA.
EM oscar.olmedo.ctr@nrl.navy.mil
FU National Research Council Research Associateship Award at the Naval
Research Laboratory; NASA [S-136301-y]; NSF [ATM-0748003]
FX This research was performed while O.O. held a National Research Council
Research Associateship Award at the Naval Research Laboratory, funded
through NASA contract S-136301-y. J.Z. is supported by NSF grant
ATM-0748003. O.O. thanks James Chen for many valuable discussions.
NR 16
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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 JUL 10
PY 2013
VL 771
IS 2
AR 125
DI 10.1088/0004-637X/771/2/125
PG 4
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 176XS
UT WOS:000321340700050
ER
PT J
AU Takami, H
Murase, K
Dermer, CD
AF Takami, Hajime
Murase, Kohta
Dermer, Charles D.
TI DISENTANGLING HADRONIC AND LEPTONIC CASCADE SCENARIOS FROM THE
VERY-HIGH-ENERGY GAMMA-RAY EMISSION OF DISTANT HARD-SPECTRUM BLAZARS
SO ASTROPHYSICAL JOURNAL LETTERS
LA English
DT Article
DE cosmic rays; gamma rays: galaxies; methods: numerical; radiation
mechanisms: non-thermal
ID EXTRAGALACTIC BACKGROUND LIGHT; INTERGALACTIC MAGNETIC-FIELDS; ACTIVE
GALACTIC NUCLEI; TEV BLAZARS; RADIATION-FIELDS; COSMIC-RAY;
SPECTROSCOPY; ABSORPTION; UNIVERSE; PHOTONS
AB Recent data from the Fermi Large Area Telescope have revealed about a dozen distant hard-spectrum blazars that have very-high-energy (VHE; greater than or similar to 100 GeV) photons associated with them, but most of them have not yet been detected by imaging atmospheric Cherenkov Telescopes. Most of these high-energy gamma-ray spectra, like those of other extreme high-frequency peaked BL Lac objects, can be well explained either by gamma rays emitted at the source or by cascades induced by ultra-high-energy cosmic rays, as we show specifically for KUV 00311-1938. We consider the prospects for detection of the VHE sources by the planned Cherenkov Telescope Array (CTA) and show how it can distinguish the two scenarios by measuring the integrated flux above similar to 500 GeV (depending on source redshift) for several luminous sources with z less than or similar to 1 in the sample. Strong evidence for the origin of ultra-high-energy cosmic rays could be obtained from VHE observations with CTA. Depending on redshift, if the often quoted redshift of KUV 00311-1938 (z = 0.61) is believed, then preliminary H. E. S. S. data favor cascades induced by ultra-high-energy cosmic rays. Accurate redshift measurements of hard-spectrum blazars are essential for this study.
C1 [Takami, Hajime] KEK, Inst Particle & Nucl Studies, Tsukuba, Ibaraki 3050801, Japan.
[Murase, Kohta] Inst Adv Study, Princeton, NJ 08540 USA.
[Dermer, Charles D.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
RP Takami, H (reprint author), KEK, Inst Particle & Nucl Studies, 1-1 Oho, Tsukuba, Ibaraki 3050801, Japan.
EM takami@post.kek.jp; murase@ias.edu; charles.dermer@nrl.navy.mil
RI Murase, Kohta/B-2710-2016
OI Murase, Kohta/0000-0002-5358-5642
FU Japan Society for Promotion of Science [24.9375]; Office of Naval
Research; INAF in Italy; CNES in France
FX We thank M. Hayashida, K. Kotera, and T. Saito for discussions, M.
Ajello and A. Reimer for questions, and B. Lott for a careful reading of
the Letter. We would also like to thank S. Digel for corrections and
constructive comments. H. T. is supported by Grant of Japan Society for
Promotion of Science No. 24.9375. The work of C. D. D. is supported by
the Office of Naval Research.; The Fermi LAT Collaboration acknowledges
support from a number of agencies and institutes for both the
development and operation of the LAT as well as scientific data
analysis. These include NASA and DOE in the United States, CEA/Irfu and
IN2P3/CNRS in France, ASI and INFN in Italy, MEXT, KEK, and JAXA in
Japan, and the K. A. Wallenberg Foundation, the Swedish Research
Council, and the National Space Board in Sweden. Additional support from
INAF in Italy and CNES in France for science analysis during the
operations phase is also gratefully acknowledged.
NR 33
TC 14
Z9 14
U1 0
U2 4
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 2041-8205
J9 ASTROPHYS J LETT
JI Astrophys. J. Lett.
PD JUL 10
PY 2013
VL 771
IS 2
AR L32
DI 10.1088/2041-8205/771/2/L32
PG 5
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 172WI
UT WOS:000321036000014
ER
PT J
AU Eguzkitza, B
Houzeaux, G
Aubry, R
Owen, H
Vazquez, M
AF Eguzkitza, Beatriz
Houzeaux, Guillaume
Aubry, Romain
Owen, Herbert
Vazquez, Mariano
TI A parallel coupling strategy for the Chimera and domain decomposition
methods in computational mechanics
SO COMPUTERS & FLUIDS
LA English
DT Article
DE Domain decomposition method; Chimera method; Non-conforming mesh;
Parallelization; Finite element methods; PDE
ID CONDITION NUMBER; MESH QUALITY; EQUATIONS; SOLVER
AB Domain Decomposition Methods (DDMs) are techniques that divide the solution of a PDE on a domain into smaller solutions on smaller subdomains coupling them using a certain strategy. They are used for essentially two purposes: designing parallel solvers and/or coupling subdomains with different meshes, different numerical approximations, etc. In this paper we are interested in this last category. One example of application is the Chimera method. In that sense, the Chimera method can be viewed as a preprocess technique plus a DDM on overlapping and non-conforming subdomains. The coupling technique of DDM is usually achieved via transmission conditions to impose the continuities of the unknown and its flux across the subdomain boundaries. We propose in this work an alternative coupling strategy, intervening as a preprocess method. It consists in connecting the nodes of one subdomain with the nodes of the adjacent subdomains via newly created elements. In this way, the multi-domain character of a DDM disappears, making it a parallel, implicit and versatile method. We discuss in this paper the relation between the proposed method and the existing coupling strategies. We also present some convergence results as well as some applications to the Navier-Stokes equations and other PDE's. (C) 2012 Elsevier Ltd. All rights reserved.
C1 [Eguzkitza, Beatriz; Houzeaux, Guillaume; Owen, Herbert] Barcelona Supercomp Ctr BSC CNS, Dept Comp Applicat Sci & Engn, Barcelona 08034, Spain.
[Aubry, Romain] George Mason Univ, Coll Sci, Dept Computat & Data Sci, CFD Ctr, Fairfax, VA 22030 USA.
[Aubry, Romain] USN, Res Lab, Washington, DC 20375 USA.
[Vazquez, Mariano] CSIC, IIIA, Bellaterra 08193, Spain.
RP Eguzkitza, B (reprint author), Barcelona Supercomp Ctr BSC CNS, Dept Comp Applicat Sci & Engn, Edificio NEXUS 1,Campus Nord UPC,Gran Capitan 2-4, Barcelona 08034, Spain.
EM beatriz.eguzkitza@bsc.es; guillaume.houzeaux@bsc.es
RI Owen, Herbert/P-5118-2014; Vazquez, Mariano/A-7416-2016; Houzeaux,
Guillaume/D-4950-2012; eguzkitza, beatriz/H-7324-2015
OI Owen, Herbert/0000-0001-8543-303X; Vazquez, Mariano/0000-0002-2526-6708;
Houzeaux, Guillaume/0000-0002-2592-1426; eguzkitza,
beatriz/0000-0002-3302-6667
FU Spanish Ministerio de Ciencia e Inovacion [13]
FX This work has been partly carried out in the framework of FP7 European
project W2Plastics. The research of Dr. Houzeaux has been partly done
under a 13 contract with the Spanish Ministerio de Ciencia e Inovacion.
NR 27
TC 4
Z9 4
U1 0
U2 5
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0045-7930
J9 COMPUT FLUIDS
JI Comput. Fluids
PD JUL 10
PY 2013
VL 80
SI SI
BP 128
EP 141
DI 10.1016/j.compfluid.2012.04.018
PG 14
WC Computer Science, Interdisciplinary Applications; Mechanics
SC Computer Science; Mechanics
GA 164RM
UT WOS:000320427200015
ER
PT J
AU Foyevtsova, K
Jeschke, HO
Mazin, II
Khomskii, DI
Valenti, R
AF Foyevtsova, Kateryna
Jeschke, Harald O.
Mazin, I. I.
Khomskii, D. I.
Valenti, Roser
TI Ab initio analysis of the tight-binding parameters and magnetic
interactions in Na2IrO3
SO PHYSICAL REVIEW B
LA English
DT Article
AB By means of density functional theory (DFT) calculations [with and without inclusion of spin-orbit (SO) coupling] we present a detailed study of the electronic structure and corresponding microscopic Hamiltonian parameters of Na2IrO3. In particular, we address the following aspects: (i) We investigate the role of the various structural distortions and show that the electronic structure of Na2IrO3 is exceptionally sensitive to structural details. (ii) We discuss both limiting descriptions for Na2IrO3-quasimolecular orbitals (small SO limit, itinerant) versus relativistic orbitals (large SO limit, localized)-and show that the description of Na2IrO3 lies in an intermediate regime. (iii) We investigate whether the nearest neighbor Kitaev-Heisenberg model is sufficient to describe the electronic structure and magnetism in Na2IrO3. In particular, we verify the recent suggestion of an antiferromagnetic Kitaev interaction and show that it is not consistent with actual or even plausible electronic parameters. Finally, (iv) we discuss correlation effects in Na2IrO3. We conclude that while the Kitaev-Heisenberg Hamiltonian is the most general expression of the quadratic spin-spin interaction in the presence of spin-orbit coupling (neglecting single-site anisotropy), the itinerant character of the electrons in Na2IrO3 makes other terms beyond this model (including, but not limited to, 2nd and 3rd neighbor interactions) essential.
C1 [Foyevtsova, Kateryna; Jeschke, Harald O.; Valenti, Roser] Goethe Univ Frankfurt, Inst Theoret Phys, D-60438 Frankfurt, Germany.
[Mazin, I. I.] Naval Res Lab, Washington, DC 20375 USA.
[Khomskii, D. I.] Univ Cologne, Inst Phys 2, D-50937 Cologne, Germany.
RP Foyevtsova, K (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 Deutsche Forschungsgemeinschaft [SFB/TR 49, FOR 1346, SFB 608]
FX H.O.J., D.Kh., and R.V. acknowledge support by the Deutsche
Forschungsgemeinschaft through Grants No. SFB/TR 49 and No. FOR 1346
(H.O.J. and R.V.), and No. SFB 608 and No. FOR 1346 (D.Kh.).
NR 32
TC 62
Z9 63
U1 2
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 JUL 8
PY 2013
VL 88
IS 3
AR 035107
DI 10.1103/PhysRevB.88.035107
PG 16
WC Physics, Condensed Matter
SC Physics
GA 181LT
UT WOS:000321669800003
ER
PT J
AU Liu, F
Biadala, L
Rodina, AV
Yakovlev, DR
Dunker, D
Javaux, C
Hermier, JP
Efros, AL
Dubertret, B
Bayer, M
AF Liu, Feng
Biadala, Louis
Rodina, Anna V.
Yakovlev, Dmitri R.
Dunker, Daniel
Javaux, Clementine
Hermier, Jean-Pierre
Efros, Alexander L.
Dubertret, Benoit
Bayer, Manfred
TI Spin dynamics of negatively charged excitons in CdSe/CdS colloidal
nanocrystals
SO PHYSICAL REVIEW B
LA English
DT Article
ID BAND-EDGE EXCITON; SINGLE QUANTUM DOTS; SEMICONDUCTOR NANOCRYSTALS;
SUPPRESSED BLINKING; FINE-STRUCTURE; DARK-EXCITON; ELECTRON; LIFETIME;
PHOTOLUMINESCENCE; SPECTROSCOPY
AB The spin dynamics in chemically synthesized CdSe/CdS core/shell nanocrystals (NCs) are studied by polarization- and time-resolved photoluminescence (PL) techniques in high magnetic fields and at low temperatures. Analysis of the recombination dynamics shows that the emission of thin-shell NCs is contributed by neutral excitons, while for thick-shell NCs it is dominated by charged excitons (trions). The sign of the PL polarization unambiguously demonstrates that these trions are negatively charged. A theoretical model of the PL polarization in an ensemble of randomly oriented NCs describes well magnetic field and time dependences of the PL polarization degree and allows us to determine the hole g factor in CdSe/CdS NCs, (gh) = -0.54. From direct measurements of the spin relaxation rate dependences on magnetic field and temperature, we identify the mechanism of the negative trion spin relaxation as two-phonon-assisted Raman scattering between the hole spin sublevels mixed by the applied magnetic field.
C1 [Liu, Feng; Biadala, Louis; Yakovlev, Dmitri R.; Dunker, Daniel; Bayer, Manfred] Tech Univ Dortmund, D-44221 Dortmund, Germany.
[Rodina, Anna V.; Yakovlev, Dmitri R.] Russian Acad Sci, Ioffe Phys Tech Inst, St Petersburg 194021, Russia.
[Javaux, Clementine; Dubertret, Benoit] ESPCI, CNRS, Lab Phys & Etud Mat, F-75231 Paris, France.
[Hermier, Jean-Pierre] Univ Versailles St Quentin En Yvelines, Grp Etud Matiere Condensee, CNRS, UMR8635, F-78035 Versailles, France.
[Hermier, Jean-Pierre] Inst Univ France, F-75005 Paris, France.
[Efros, Alexander L.] Naval Res Lab, Washington, DC 20375 USA.
RP Liu, F (reprint author), Tech Univ Dortmund, D-44221 Dortmund, Germany.
OI Biadala, Louis/0000-0002-1953-9095
FU EU Seventh Framework Programme [237252]; Deutsche
Forschungsgemeinschaft; Agence Nationale pour la Recherche; Region
Ile-de-France; RFBR [13-02-00888-a]; ESPCI; Institut Universitaire de
France; Office of Naval Research (ONR) through the Naval Research
Laboratory's Basic Research Program; Alexander-von-Humboldt Foundation
(Bonn, Germany)
FX This work was supported by the EU Seventh Framework Programme (Grant No.
237252, Spin-Optronics) and the Deutsche Forschungsgemeinschaft. L.B.,
B.D., and J.-P.H. acknowledge support from the Agence Nationale pour la
Recherche and the Region Ile-de-France. A.V.R. acknowledges support from
the RFBR (Grant No. 13-02-00888-a). B.D. acknowledges support from the
ESPCI and J.-P.H acknowledges support from the Institut Universitaire de
France. Al.L.E. acknowledges financial support of the Office of Naval
Research (ONR) through the Naval Research Laboratory's Basic Research
Program and Alexander-von-Humboldt Foundation (Bonn, Germany). Feng Liu,
Louis Biadala, and Anna V. Rodina contributed equally to this paper.
NR 52
TC 18
Z9 18
U1 3
U2 71
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 JUL 8
PY 2013
VL 88
IS 3
AR 035302
DI 10.1103/PhysRevB.88.035302
PG 12
WC Physics, Condensed Matter
SC Physics
GA 181LT
UT WOS:000321669800006
ER
PT J
AU Lindsay, L
Broido, DA
Reinecke, TL
AF Lindsay, L.
Broido, D. A.
Reinecke, T. L.
TI First-Principles Determination of Ultrahigh Thermal Conductivity of
Boron Arsenide: A Competitor for Diamond?
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID SINGLE-CRYSTALS; PHONONS; HEAT; ALN
AB We have calculated the thermal conductivities (kappa) of cubic III-V boron compounds using a predictive first principles approach. Boron arsenide is found to have a remarkable room temperature kappa over 2000 W m(-1) K-1; this is comparable to those in diamond and graphite, which are the highest bulk values known. We trace this behavior in boron arsenide to an interplay of certain basic vibrational properties that lie outside of the conventional guidelines in searching for high kappa materials, and to relatively weak phonon-isotope scattering. We also find that cubic boron nitride and boron antimonide will have high kappa with isotopic purification. This work provides new insight into the nature of thermal transport at a quantitative level and predicts a new ultrahigh kappa material of potential interest for passive cooling applications.
C1 [Lindsay, L.; Reinecke, T. L.] Naval Res Lab, Washington, DC 20375 USA.
[Broido, D. A.] Boston Coll, Dept Phys, Chestnut Hill, MA 02467 USA.
RP Lindsay, L (reprint author), Naval 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 Program; S3TEC, an Energy
Frontier Research Center; U.S. Department of Energy, Office of Science,
Office of Basic Energy Sciences [DE-FG02-09ER46577]; National Science
Foundation [1066634]
FX This work was supported in part by ONR and DARPA (L. L. and T. L. R.).
L. L. acknowledges support from the NRC-NRL Research Associateship
Program. D. A. B acknowledges support primarily from the S3TEC, an
Energy Frontier Research Center funded by the U.S. Department of Energy,
Office of Science, Office of Basic Energy Sciences under Award No.
DE-FG02-09ER46577, and also from the National Science Foundation under
Grant No. 1066634.
NR 35
TC 63
Z9 64
U1 8
U2 95
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 JUL 8
PY 2013
VL 111
IS 2
AR 025901
DI 10.1103/PhysRevLett.111.025901
PG 5
WC Physics, Multidisciplinary
SC Physics
GA 181NN
UT WOS:000321674500003
PM 23889420
ER
PT J
AU Anderson, GP
Glaven, RH
Algar, WR
Susumu, K
Stewart, MH
Medintz, IL
Goldman, ER
AF Anderson, George P.
Glaven, Richard H.
Algar, W. Russ
Susumu, Kimihiro
Stewart, Michael H.
Medintz, Igor L.
Goldman, Ellen R.
TI Single domain antibody-quantum dot conjugates for ricin detection by
both fluoroimmunoassay and surface plasmon resonance
SO ANALYTICA CHIMICA ACTA
LA English
DT Article
DE Single domain antibody; Quantum dots; Surface plasmon resonance;
Immunoassay; Signal enhancement
ID HEAVY-CHAIN ANTIBODIES; ANTIGEN RECEPTOR; PROTEIN; FRAGMENTS;
AMPLIFICATION; IMMUNOASSAYS; GENERATION; BIOSENSORS; STABILITY; KINETICS
AB The combination of stable biorecognition elements and robust quantum dots (QDs) has the potential to yield highly effective reporters for bioanalyses. Llama-derived single domain antibodies (sdAb) provide small thermostable recognition elements that can be easily manipulated using standard DNA methods. The sdAb was self-assembled on dihydrolipoic acid (DHLA) ligand-capped CdSe-ZnS core-shell QDs made in our laboratory through the polyhistidine tail of the protein, which coordinated to zinc ions on the QD surface. The sdAb-QD bioconjugates were then applied in both fluorometric and surface plasmon resonance (SPR) immunoassays for the detection of ricin, a potential biothreat agent. The sdAb-QD conjugates functioned in fluoroimmunoassays for the detection of ricin, providing equivalent limits of detection when compared to the same anti-ricin sdAb labeled with a conventional fluorophore. In addition, the DHLA-QD-sdAb conjugates were very effective reporter elements in SPR sandwich assays, providing more sensitive detection with a signal enhancement of similar to 10-fold over sdAb reporters and 2-4 fold over full sized antibody reporters. Commercially prepared streptavidin-modified polymer-coated QDs also amplified the SPR signal for the detection of ricin when applied to locations where biotinylated anti-ricin sdAb was bound to target; however, we observed a 4-fold greater amplification when using the DHLA-QD-sdAb conjugates in this format. (C) 2013 Published by Elsevier B.V.
C1 [Anderson, George P.; Algar, W. Russ; Medintz, Igor L.; Goldman, Ellen R.] USN, Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 USA.
[Algar, W. Russ] George Mason Univ, Coll Sci, Fairfax, VA 22030 USA.
[Glaven, Richard H.] Nova Res Inc, Alexandria, VA 22308 USA.
[Susumu, Kimihiro; Stewart, Michael H.] USN, Res Lab, Div Opt Sci, Washington, DC 20375 USA.
[Susumu, Kimihiro] Sotera Def Solut, Annapolis, MD 20701 USA.
RP Goldman, ER (reprint author), USN, Res Lab, Ctr Bio Mol Sci & Engn, Code 6900,4555 Overlook Ave SW, Washington, DC 20375 USA.
EM ellen.goldman@nrl.navy.mil
RI Anderson, George/D-2461-2011
OI Anderson, George/0000-0001-7545-9893
FU JSTO-CBD/DTRA Project [CBS MED-BIO 04 10 NRL 001, B112582M]; NRL-NSI;
Natural Science and Engineering Research Council of Canada (NSERC)
FX This work was supported by JSTO-CBD/DTRA Project # CBS MED-BIO 04 10 NRL
001 and #B112582M along with the NRL-NSI. WRA is grateful to the Natural
Science and Engineering Research Council of Canada (NSERC) for a
postdoctoral fellowship. The opinions 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 36
TC 22
Z9 23
U1 3
U2 106
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 JUL 5
PY 2013
VL 786
BP 132
EP 138
DI 10.1016/j.aca.2013.05.010
PG 7
WC Chemistry, Analytical
SC Chemistry
GA 170LO
UT WOS:000320852300019
PM 23790302
ER
PT J
AU Coneski, PN
Weise, NK
Wynne, JH
AF Coneski, Peter N.
Weise, Nickolaus K.
Wynne, James H.
TI Synthesis and characterization of poly(silyl urethane)s derived from
glycol-modified silanes
SO JOURNAL OF APPLIED POLYMER SCIENCE
LA English
DT Article
DE biodegradable; crosslinking; polyurethanes
ID ORGANIC-INORGANIC MATERIALS; CONTROLLED/LIVING RADICAL POLYMERIZATION;
HYBRID MATERIALS; POLYMERS; POLYDIMETHYLSILOXANE; NANOCOMPOSITES;
ELASTOMERS; CHEMISTRY
AB Hybrid composites are a class of material that have gained substantial recognition due to their highly sought-after properties of both organics and inorganics. A novel method for incorporating inorganic content into urethane materials is through the use of organically modified silicate cross-linkers. Glycol-modified silanes, in particular, allow for the facile preparation of highly cross-linked urethane materials with a wide range of bulk and surface characteristics including glass transition temperature (40.485.6 degrees C), storage modulus (0.71.62 GPa), and surface energy (19.062.4 dynes cm1). Importantly, control of the overall polymer properties remains achievable via the structural control of macrodiols and isocyanates. Additionally, incorporation of silicate cross-linkers into urethane systems provides these materials with a hydrolyzable character, which may be controlled by altering the bulk polymer composition, cross-link density, and surface energy. The unique nature of these systems also allows for the preparation of highly cross-linked urethanes in the absence of any heavy metal catalysts and depending on the composition, with the use of little to no solvent. (c) 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013
C1 [Coneski, Peter N.; Weise, Nickolaus K.; Wynne, James H.] USN, Div Chem, Res Lab, Washington, DC 20375 USA.
RP Wynne, JH (reprint author), USN, Div Chem, Res Lab, Code 6124, Washington, DC 20375 USA.
EM james.wynne@nrl.navy.mil
FU Office of Naval Research; Naval Research Laboratory
FX This work was funded by the Office of Naval Research and the Naval
Research Laboratory.
NR 33
TC 2
Z9 2
U1 0
U2 60
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 JUL 5
PY 2013
VL 129
IS 1
BP 161
EP 173
DI 10.1002/app.38713
PG 13
WC Polymer Science
SC Polymer Science
GA 121ZS
UT WOS:000317285200018
ER
PT J
AU Davis, MC
Parrish, DA
Harvey, BG
AF Davis, Matthew C.
Parrish, Damon A.
Harvey, Benjamin G.
TI A Triflate Hydrodeoxygenation Route to Resveratrol from Syringaldehyde
SO ORGANIC PREPARATIONS AND PROCEDURES INTERNATIONAL
LA English
DT Article
ID PALLADIUM-CATALYZED REDUCTION; PHENOLIC HYDROXYL-GROUPS; MICROWAVE
IRRADIATION; TRANSFER-HYDROGENATION; STILBENE DERIVATIVES; IONIC
LIQUIDS; DEOXYGENATION; DECARBOXYLATION; ACIDS; (E)-STILBENES
C1 [Davis, Matthew C.; Harvey, Benjamin G.] Naval Air Warfare Ctr, Chem & Mat Div, Michelson Lab, China Lake, CA 93555 USA.
[Parrish, Damon A.] Naval Res Lab, Lab Struct Matter Code 6910, Washington, DC 20375 USA.
RP Davis, MC (reprint author), Naval Air Warfare Ctr, Chem & Mat Div, Michelson Lab, China Lake, CA 93555 USA.
EM matthew.davis@navy.mil
FU Strategic Environmental Research and Development Program
FX Financial support of the Strategic Environmental Research and
Development Program is gratefully acknowledged. Thanks to Ann Moorehead
and Cyndy Kitchens of the Technical Library (NAWCWD China Lake) for
collecting several of the references.
NR 57
TC 5
Z9 5
U1 2
U2 35
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 530 WALNUT STREET, STE 850, PHILADELPHIA, PA 19106 USA
SN 0030-4948
EI 1945-5453
J9 ORG PREP PROCED INT
JI Org. Prep. Proced. Int.
PD JUL 4
PY 2013
VL 45
IS 4
BP 304
EP 313
DI 10.1080/00304948.2013.798567
PG 10
WC Chemistry, Organic
SC Chemistry
GA 169CF
UT WOS:000320753800002
ER
PT J
AU McDonald, LS
Dewing, CB
Shupe, PG
Provencher, MT
AF McDonald, Lucas S.
Dewing, Christopher B.
Shupe, Paul G.
Provencher, Matthew T.
TI Disorders of the Proximal and Distal Aspects of the Biceps Muscle
SO JOURNAL OF BONE AND JOINT SURGERY-AMERICAN VOLUME
LA English
DT Review
ID ANTERIOR-POSTERIOR LESIONS; SUPERIOR LABRUM ANTERIOR; ROTATOR CUFF
TEARS; II SLAP LESIONS; TRANSVERSE HUMERAL LIGAMENT; SHOULDER MR
ARTHROGRAPHY; LONG-HEAD; TENDON RUPTURES; GLENOID LABRUM; ARTHROSCOPIC
REPAIR
C1 [McDonald, Lucas S.; Dewing, Christopher B.; Shupe, Paul G.; Provencher, Matthew T.] USN, San Diego Med Ctr, San Diego, CA 92134 USA.
RP McDonald, LS (reprint author), USN, San Diego Med Ctr, Dept Orthopaed, 34800 Bob Wilson Dr, San Diego, CA 92134 USA.
EM Lucas.mcdonald@rned.nayy.mil
NR 163
TC 8
Z9 9
U1 0
U2 11
PU JOURNAL BONE JOINT SURGERY INC
PI NEEDHAM
PA 20 PICKERING ST, NEEDHAM, MA 02192 USA
SN 0021-9355
J9 J BONE JOINT SURG AM
JI J. Bone Joint Surg.-Am. Vol.
PD JUL 3
PY 2013
VL 95A
IS 13
BP 1235
EP 1245
DI 10.2106/JBJS.L.00221
PG 11
WC Orthopedics; Surgery
SC Orthopedics; Surgery
GA 178TS
UT WOS:000321470900012
PM 23824393
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.
de Toledo, A. Szanto
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 Elliptic flow of identified hadrons in Au + Au collisions at root
s(NN)=7.7-62.4 GeV
SO PHYSICAL REVIEW C
LA English
DT Article
ID RELATIVISTIC NUCLEAR COLLISIONS; HEAVY-ION COLLISIONS; QUARK-GLUON
PLASMA; STRANGE PARTICLES; STAR; COLLABORATION; ANISOTROPY; SIGNATURE;
ENERGY; MODELS
AB Measurements of the elliptic flow, upsilon(2), of identified hadrons (pi(+/-), K-+/-, K-s(0), p, (p) over bar, phi, Lambda, (Lambda) over bar, Xi(-), (Xi) over bar (+), Omega(-), (Omega) over bar (+)) in Au + Au collisions at root s(NN) = 7.7, 11.5, 19.6, 27, 39, and 62.4 GeV are presented. The measurements were done at midrapidity using the time-projection chamber and the time-of-flight detectors of the Solenoidal Tracker at RHIC experiment during the beam-energy scan program at Relativistic Heavy Ion Collider. A significant difference in the upsilon(2) values for particles and the corresponding antiparticles was observed at all transverse momenta for the first time. The difference increases with decreasing center-of-mass energy, root s(NN) (or increasing baryon chemical potential, mu(B)), and is larger for the baryons as compared to the mesons. This implies that particles and antiparticles are no longer consistent with the universal number-of-constituent quark (NCQ) scaling of upsilon(2) that was observed at root s(NN) = 200 GeV. However, for the selected group of particles (p(+), K+, K-s(0), p, Lambda, Xi(-), Omega(-)) NCQ scaling at (m(T) - m(0))/n(q) > 0.4 GeV/c(2) is not violated within +/- 10%. The upsilon(2) values for f mesons at 7.7 and 11.5 GeV are approximately two standard deviations from the trend defined by the other hadrons at the highest measured p(T) values.
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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.; 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.
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[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.
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[Derradi de Souza, R.; Takahashi, J.; Vasconcelos, G. M. S.] Univ Estadual Campinas, Sao Paulo, Brazil.
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[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, Fac Nucl Sci & Phys Engn, CR-11519 Prague, 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.
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[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.; 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.; 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.; 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.; de Toledo, A. Szanto] 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.; 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.
[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.] Bhabha Atom Res Ctr, Ctr Variable Energy Cyclotron, Kolkata 700064, W Bengal, 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 Voloshin, Sergei/I-4122-2013; Strikhanov, Mikhail/P-7393-2014; Xu,
Wenqin/H-7553-2014; 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; Bielcikova, Jana/G-9342-2014; Alekseev,
Igor/J-8070-2014; Sumbera, Michal/O-7497-2014; 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; 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 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;
Alekseev, Igor/0000-0003-3358-9635; Sumbera, Michal/0000-0002-0639-7323;
Mohanty, Bedangadas/0000-0001-9610-2914; Bhasin,
Anju/0000-0002-3687-8179; 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 US DOE Office of Science;
Office of 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
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; Korea Research Foundation; Ministry of Science,
Education, and Sports of the Republic of Croatia; RosAtom of Russia;
VEGA of Slovakia
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 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 Korea Research Foundation; the Ministry of Science,
Education, and Sports of the Republic of Croatia; RosAtom of Russia; and
VEGA of Slovakia.
NR 62
TC 50
Z9 52
U1 2
U2 61
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 JUL 3
PY 2013
VL 88
IS 1
AR 014902
DI 10.1103/PhysRevC.88.014902
PG 25
WC Physics, Nuclear
SC Physics
GA 175YW
UT WOS:000321270800003
ER
PT J
AU Armstrong, PE
Malone, DC
Krishnon, S
Wessler, J
AF Armstrong, P. E.
Malone, D. C.
Krishnon, S.
Wessler, J.
TI Costs and utilization of haemophilia A and B patients with and without
inhibitors
SO JOURNAL OF THROMBOSIS AND HAEMOSTASIS
LA English
DT Meeting Abstract
C1 [Armstrong, P. E.; Malone, D. C.] Strateg Therapeut LLC, Tucson, AZ USA.
[Krishnon, S.] Biogen Idec Inc, Weston, MA USA.
[Wessler, J.] Natl Naval Med Ctr, Portsmouth, VA 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 1538-7933
EI 1538-7836
J9 J THROMB HAEMOST
JI J. Thromb. Haemost.
PD JUL
PY 2013
VL 11
SU 2
SI SI
BP 530
EP 530
PG 1
WC Hematology; Peripheral Vascular Disease
SC Hematology; Cardiovascular System & Cardiology
GA AB5MV
UT WOS:000331833602546
ER
PT J
AU McCamish, SB
Ciarcia, M
Romano, M
AF McCamish, Shawn B.
Ciarcia, Marco
Romano, Marcello
TI Simulations of Multiple Spacecraft Maneuvering with MATLAB/Simulink and
Satellite Tool Kit
SO JOURNAL OF AEROSPACE INFORMATION SYSTEMS
LA English
DT Article
AB A software interface between the MATLAB/Simulink environment and the Satellite Tool Kit Environment is introduced. This research is based on the need for validating model performance and visualizing simultaneous multiple-spacecraft proximity maneuvers for emerging missions. It is common for spacecraft systems to be modeled with MATLAB and Simulink. Furthermore, the software package Satellite Tool Kit is often used for animating and evaluating spacecraft maneuvers. In this research, a MATLAB/Satellite Tool Kit interface was developed to propagate six-degree-of-freedom spacecraft models, compared against Satellite-Tool-Kit-generated ephemeris, and animated for analysis. MATLAB script with necessary formatting is used for Satellite Tool Kit initialization and animation. The MATLAB/Satellite Tool Kit simulation interface allows variations in number, shape, and dimensions of spacecraft. Additionally, numerous model and simulation parameters can be selected and synchronized between MATLAB and Satellite Tool Kit. Furthermore, either predetermined, or randomly distributed, initial spacecraft positions and orientations are permitted by the interface. The paper gives enough details to allow the interested readers to adapt to their needs and further develop the proposed software interface.
C1 [McCamish, Shawn B.] Naval Postgrad Sch, ECE Dept, Monterey, CA 93940 USA.
[Ciarcia, Marco; Romano, Marcello] Naval Postgrad Sch, Spacecraft Robot Lab, Mech & Aerosp Engn Dept, Monterey, CA 93940 USA.
[Romano, Marcello] Naval Postgrad Sch, Space Syst Acad Grp, Monterey, CA 93940 USA.
RP McCamish, SB (reprint author), Naval Postgrad Sch, ECE Dept, 700 Dyer Rd, Monterey, CA 93940 USA.
EM sbmccami@nps.edu; mciarcia@nps.edu; mromano@nps.edu
FU U.S. Department of Defense
FX This research has been supported in part by the U.S. Department of
Defense. S. B. McCamish gratefully acknowledges the support from both
faculty and students at the Naval Postgraduate School.
NR 13
TC 0
Z9 0
U1 3
U2 5
PU AMER INST AERONAUTICS ASTRONAUTICS
PI RESTON
PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091-4344 USA
SN 1940-3151
EI 2327-3097
J9 J AEROSP INFORM SYST
JI J. Aerosp. Inf. Syst.
PD JUL
PY 2013
VL 10
IS 7
BP 348
EP 358
DI 10.2514/1.35328
PG 11
WC Engineering, Aerospace
SC Engineering
GA AB2FZ
UT WOS:000331609900003
ER
PT J
AU Justman, J
Goldberg, A
Reed, J
Bock, N
Njeuhmeli, E
Thomas, AG
AF Justman, Jessica
Goldberg, Allison
Reed, Jason
Bock, Naomi
Njeuhmeli, Emmanuel
Thomas, Anne Goldzier
TI Adult Male Circumcision: Reflections on Successes and Challenges
SO JAIDS-JOURNAL OF ACQUIRED IMMUNE DEFICIENCY SYNDROMES
LA English
DT Article
DE male circumcision; global scale-up; diffusion of innovation models
ID HIV PREVENTION; TRIAL; INFECTION; RISK; MEN
AB Voluntary medical male circumcision (VMMC) is a cost-effective HIV-prevention intervention that reduces the risk of HIV acquisition in men by 60%. Although some countries are successfully scaling up VMMC, not all are doing this. When VMMC scale-up experiences are viewed in the context of models for the diffusion of innovation, some important themes emerge. Successful VMMC programs have in common locally led campaigns, a cultural tolerance of VMMC, strong political leadership and coordination, and adequate human and material resources. Challenges with VMMC scale-up have been marked by less flexible implementation models that seek a full-integration of VMMC services at public medical facilities and by struggles to achieve geographic parity in access to care. Innovation diffusion models, especially the endogenous technology model, and multiple levels of influence on diffusion-individual males and their sex partners, communities, and health systems-remind us that the adoption of a prevention intervention, such as VMMC, is expected to start out slowly and, as information spreads, gradually speed up. In addition, the diffusion models suggest that customizing approaches to different populations is likely to accelerate VMMC scale-up and help achieve a long-term, sustainable impact on the HIV epidemic.
C1 [Justman, Jessica] Columbia Univ, ICAP Columbia, New York, NY 10032 USA.
[Justman, Jessica; Goldberg, Allison] Columbia Univ, Mailman Sch Publ Hlth, New York, NY 10032 USA.
[Reed, Jason] Off US Global AIDS Coordinator, Washington, DC USA.
[Bock, Naomi] Ctr Dis Control & Prevent CDC, Div Global HIV AIDS, Ctr Global Hlth, Atlanta, GA USA.
[Njeuhmeli, Emmanuel] US Agcy Int Dev, Global Hlth Bur, Off HIV AIDS, Washington, DC 20523 USA.
[Thomas, Anne Goldzier] Naval Hlth Res Ctr, San Diego, CA USA.
RP Justman, J (reprint author), ICAP Columbia, Mailman Sch Publ Hlth, 722 West 168th St,Room 1315, New York, NY 10032 USA.
EM jj2158@columbia.edu
NR 29
TC 4
Z9 4
U1 1
U2 6
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 1525-4135
EI 1077-9450
J9 JAIDS-J ACQ IMM DEF
JI JAIDS
PD JUL 1
PY 2013
VL 63
SU 2
BP S140
EP S143
PG 4
WC Immunology; Infectious Diseases
SC Immunology; Infectious Diseases
GA 300JD
UT WOS:000330459300006
PM 23764626
ER
PT J
AU Shinoda, T
Jensen, TG
Flatau, M
Chen, S
AF Shinoda, Toshiaki
Jensen, Tommy G.
Flatau, Maria
Chen, Sue
TI Surface Wind and Upper-Ocean Variability Associated with the
Madden-Julian Oscillation Simulated by the Coupled Ocean-Atmosphere
Mesoscale Prediction System (COAMPS)
SO MONTHLY WEATHER REVIEW
LA English
DT Article
ID WESTERN EQUATORIAL PACIFIC; INTRASEASONAL KELVIN WAVES; AIR-SEA
INTERACTION; INDIAN-OCEAN; MIXED-LAYER; WARM POOL; COASTAL OCEAN;
RESPONSE EXPERIMENT; BARRIER LAYER; EL-NINO
AB Simulation of surface wind and upper-ocean variability associated with the Madden-Julian oscillation (MJO) by a regional coupled model, the Coupled Ocean-Atmosphere Mesoscale Prediction System (COAMPS), is evaluated by the comparison with in situ and satellite observations. COAMPS is configured for the tropical Indian Ocean domain with the horizontal resolution of 27 km for the atmospheric component and 1/8 degrees for the ocean component. A high-resolution nested grid (9 km) for the atmospheric component is used for the central Indian Ocean. While observational data are assimilated into the atmospheric component, no data are assimilated into the ocean component. The model was integrated during 1 March-30 April 2009 when an active episode of large-scale convection associated with the MJO passed eastward across the Indian Ocean. During this MJO event, strong surface westerly winds (similar to 8ms(-1)) were observed in the central equatorial Indian Ocean, and they generated a strong eastward jet (similar to 1ms(-1)) on the equator. COAMPS can realistically simulate these surface wind and upper-ocean variations. The sensitivity of upper-ocean variability to the atmospheric model resolution is examined by the COAMPS experiment without the high-resolution nested grid. The equatorial jet generated in this experiment is about 20% weaker than that in the first experiment, which significantly influences upper-ocean salinity and temperature. The large diurnal warming of SST during the suppressed phase of the MJO is also adequately simulated by the model. Weak winds during this period are mostly responsible for the large SST diurnal variation based on the comparison with the spatial variation of surface forcing fields.
C1 [Shinoda, Toshiaki; Jensen, Tommy G.] Naval Res Lab, Stennis Space Ctr, MS 39529 USA.
[Flatau, Maria; Chen, Sue] Naval Res Lab, Monterey, CA USA.
RP Shinoda, T (reprint author), Naval Res Lab, Stennis Space Ctr, MS 39529 USA.
EM toshiaki.shinoda@nrlssc.navy.mil
RI Shinoda, Toshiaki/J-3745-2016
OI Shinoda, Toshiaki/0000-0003-1416-2206
FU 6.1 project "The Influence of Atmosphere Ocean Interaction on MJO
Development and Propagation" [601153N]; Office of Naval Research;
NOAA/CPO MAPP program; ESS program
FX The TAO Project Office of NOAA/PMEL provided the RAMA buoy time series
data. QuikSCAT wind data are produced by Remote Sensing Systems.
NCEP-NCAR reanalysis data are provided by the NOAA/OAR/ESRL PSD. We
appreciate the effort of Tim Cambell and Travis Smith for the
improvement of COAMPS and assistance for model experiments. Jerome
Schmidt and Ming Liu contributed to the improvement of moist physics and
radiation scheme in COAMPS. This research is supported by 6.1 project
"The Influence of Atmosphere Ocean Interaction on MJO Development and
Propagation" (Program Element 601153N) sponsored by the Office of Naval
Research. Toshiaki Shinoda is also supported by NOAA/CPO MAPP and ESS
programs.
NR 70
TC 11
Z9 11
U1 2
U2 10
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 JUL
PY 2013
VL 141
IS 7
BP 2290
EP 2307
DI 10.1175/MWR-D-12-00273.1
PG 18
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 301ET
UT WOS:000330516300009
ER
PT J
AU Archambault, HM
Bosart, LF
Keyser, D
Cordeira, JM
AF Archambault, Heather M.
Bosart, Lance F.
Keyser, Daniel
Cordeira, Jason M.
TI A Climatological Analysis of the Extratropical Flow Response to
Recurving Western North Pacific Tropical Cyclones
SO MONTHLY WEATHER REVIEW
LA English
DT Article
ID LARGE-SCALE CIRCULATION; DOWNSTREAM IMPACTS; PART II; PRECIPITATION
EVENTS; VERTICAL SHEAR; TRANSITION; EVOLUTION; TRACK; REANALYSIS;
INTENSITY
AB Although prior studies have established that the extratropical flow pattern often amplifies downstream of recurving tropical cyclones (TCs), the extratropical flow response to recurving TCs has not to the authors' knowledge been systematically examined from a climatological perspective. In this study, a climatology of the extratropical flow response to recurving western North Pacific TCs is constructed from 292 cases of TC recurvature during 1979-2009. The extratropical flow response to TC recurvature is evaluated based on a time-lagged composite time series of an index of the North Pacific meridional flow surrounding TC recurvature. Similar time series are constructed for recurving TCs stratified by characteristics of the large-scale flow pattern, the TC, and the phasing between the TC and the extratropical flow to assess factors influencing the extratropical flow response to TC recurvature. Results reveal that following TC recurvature, significantly amplified flow develops over the North Pacific and persists for; 4 days. The tendency for significantly amplified North Pacific flow to develop following TC recurvature is sensitive to the strength of the TC-extratropical flow interaction (the phasing between the TC and the extratropical flow), which is based on the negative potential vorticity advection by the divergent outflow of the TC. In contrast, the tendency for significantly amplified North Pacific flow to develop following TC recurvature is relatively insensitive to the intensity or size of the recurving TC, or whether it subsequently reintensifies after becoming extratropical.
C1 [Archambault, Heather M.] Naval Postgrad Sch, Dept Meteorol, Monterey, CA 93943 USA.
[Bosart, Lance F.; Keyser, Daniel] SUNY Albany, Dept Atmospher & Environm Sci, Albany, NY 12222 USA.
[Cordeira, Jason M.] EarthRisk Technol Inc, San Diego, CA USA.
RP Archambault, HM (reprint author), Naval Postgrad Sch, Dept Meteorol, Monterey, CA 93943 USA.
EM hmarcham@nps.edu
FU NSF [AGS-0935830]; NOAA [NA09OAR4310192]; National Research Council
Research Associateship Award at Naval Postgraduate School
FX The authors gratefully acknowledge Dr. Chris Davis (NCAR) for his
invaluable contributions to the direction of this research while hosting
the first author as a graduate student visitor in the NCAR Advanced
Study Program. Research support was provided by NSF Grant AGS-0935830
and NOAA Grant NA09OAR4310192. A portion of this research was completed
while the first author held a National Research Council Research
Associateship Award at the Naval Postgraduate School. The authors wish
to thank Dr. Michael Riemer (University of Mainz) and an anonymous
reviewer for their thoughtful and detailed suggestions that
substantially improved the quality of this manuscript.
NR 51
TC 38
Z9 39
U1 3
U2 15
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 JUL
PY 2013
VL 141
IS 7
BP 2325
EP 2346
DI 10.1175/MWR-D-12-00257.1
PG 22
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 301ET
UT WOS:000330516300011
ER
PT J
AU Hodyss, D
Campbell, WF
AF Hodyss, Daniel
Campbell, William F.
TI Square Root and Perturbed Observation Ensemble Generation Techniques in
Kalman and Quadratic Ensemble Filtering Algorithms
SO MONTHLY WEATHER REVIEW
LA English
DT Article
ID ATMOSPHERIC DATA ASSIMILATION; SYSTEM
AB The main goal of this work is to present a new square root ensemble generation technique that is consistent with a recently developed extension of Kalman-based linear regression algorithms such that they may perform nonlinear polynomial regression (i.e., includes a quadratically nonlinear term in the mean update equation) and that is applicable to ensemble data assimilation in the geosciences. Along the way the authors present a unification of the theories of square root and perturbed observation (sometimes referred to as stochastic) ensemble generation in data assimilation algorithms configured to perform both linear (Kalman) regression as well as quadratic nonlinear regression. The performance of linear and nonlinear regression algorithms with both ensemble generation techniques is explored in the three-variable Lorenz model as well as in a nonlinear model configured to simulate shear layer instabilities.
C1 [Hodyss, Daniel; Campbell, William F.] Naval Res Lab, Monterey, CA 93943 USA.
RP Hodyss, D (reprint author), Naval Res Lab, Marine Meteorol Div, 7 Grace Hopper Ave,Stop 2, Monterey, CA 93943 USA.
EM daniel.hodyss@nrlmry.navy.mil
FU Office of Naval Research [PE-0601153N]
FX We gratefully acknowledge support from the Office of Naval Research
PE-0601153N.
NR 27
TC 6
Z9 6
U1 0
U2 3
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 JUL
PY 2013
VL 141
IS 7
BP 2561
EP 2573
DI 10.1175/MWR-D-12-00117.1
PG 13
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 301ET
UT WOS:000330516300025
ER
PT J
AU Marmorino, GO
Smith, GB
Miller, WD
AF Marmorino, George O.
Smith, Geoffrey B.
Miller, W. David
TI Surface Imprints of Water-Column Turbulence: A Case Study of Tidal Flow
over an Estuarine Sill
SO REMOTE SENSING
LA English
DT Article
DE ocean remote sensing; thermal infrared imagery; sill-induced mixing;
boils; Boundary Pass
ID INTERNAL WAVES; 2-LAYER EXCHANGE; OCEAN; FRONTS; SEA; TOPOGRAPHY;
GENERATION; EVOLUTION
AB Turbulent mixing in the ocean can, in some cases, be so intense as to leave surface imprints, or boils, that are detectable from space. Examples include turbulent flow over a submerged obstacle and instability of large-amplitude internal waves. In this paper we examine the particular case of tidal flow over a approximate to 60-m-deep sill, which forms a barrier for the flow of dense water from the Pacific Ocean into the Strait of Georgia. The flow response during flood tide is illustrated using visible and thermal-band satellite and airborne imagery, the latter having high-resolution multi-looks that capture the formative stage of the boils. The image examples capture aspects of the expected flow response based on in situ measurements reported in the literature, but they also suggest differences, and they reveal the level of complexity of the surface structure. A new result is that, after the front is pushed well off the sill, boils emerge several hundred meters downstream from the sill crest, grow at a rate of approximate to 60 m(2)/s, and attain a size of 3,800 m(2) (an equivalent diameter of 70 m) after one minute. These boils appear to arise from vorticity generated by vertical shear at the sill crest, and provide an additional source of vertical mixing and (through wave breaking) air-sea gas exchange.
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, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM marmorino@nrl.navy.mil; geoffrey.smith@nrl.navy.mil;
dave.miller@nrl.navy.mil
FU Office of Naval Research; Naval Research Laboratory [72-9201]
FX This work was made possible through the support of the Office of Naval
Research and conducted under Naval Research Laboratory project 72-9201.
NRL contribution NRL/JA/7230-13-0057.
NR 34
TC 1
Z9 1
U1 1
U2 13
PU MDPI AG
PI BASEL
PA POSTFACH, CH-4005 BASEL, SWITZERLAND
SN 2072-4292
J9 REMOTE SENS-BASEL
JI Remote Sens.
PD JUL
PY 2013
VL 5
IS 7
BP 3239
EP 3258
DI 10.3390/rs5073239
PG 20
WC Remote Sensing
SC Remote Sensing
GA 274SH
UT WOS:000328626000006
ER
PT J
AU Ansumana, R
Jacobsen, KH
Leski, TA
Covington, AL
Bangura, U
Hodges, MH
Lin, BC
Bockarie, AS
Lamin, JM
Bockarie, MJ
Stenger, DA
AF Ansumana, Rashid
Jacobsen, Kathryn H.
Leski, Tomasz A.
Covington, Andrea L.
Bangura, Umaru
Hodges, Mary H.
Lin, Baochuan
Bockarie, Alfred S.
Lamin, Joseph M.
Bockarie, Moses J.
Stenger, David A.
TI Reemergence of Chikungunya Virus in Bo, Sierra Leone
SO EMERGING INFECTIOUS DISEASES
LA English
DT Article
ID AFRICA; ASSAY
AB We diagnosed 400 possible IgM-positive cases of chikungunya virus in Bo, Sierra Leone, during July 2012 January 2013 by. using lateral flow immunoassays. Cases detected likely represent only a small fraction of total cases. Further laboratory testing is required to confirm this outbreak and characterize the virus.
C1 [Ansumana, Rashid; Bockarie, Alfred S.] Njala Univ, Bo, Sierra Leone.
[Ansumana, Rashid] Mercy Hosp, Res Lab, Bo, Sierra Leone.
[Covington, Andrea L.; Bangura, Umaru; Bockarie, Alfred S.; Lamin, Joseph M.] Mercy Hosp, Bo, Sierra Leone.
[Ansumana, Rashid; Hodges, Mary H.; Bockarie, Moses J.] Univ Liverpool, Liverpool Sch Trop Med, Liverpool L3 5QA, Merseyside, England.
[Jacobsen, Kathryn H.] George Mason Univ, Fairfax, VA 22030 USA.
[Leski, Tomasz A.; Lin, Baochuan; Stenger, David A.] US Naval Res Lab, Washington, DC USA.
RP Jacobsen, KH (reprint author), George Mason Univ, Dept Global & Community Hlth, 4400 Univ Dr,Mailstop 5B7, Fairfax, VA 22030 USA.
EM kjacobse@gmu.edu
RI Leski, Tomasz/K-6916-2013; Lin, Baochuan/A-8390-2009; Jacobsen,
Kathryn/B-5857-2008
OI Leski, Tomasz/0000-0001-7688-9887; Lin, Baochuan/0000-0002-9484-0785;
Jacobsen, Kathryn/0000-0002-4198-6246
FU Defense Threat Reduction Agency (Fort Belvoir, Virginia, USA)
FX This study was supported by the Defense Threat Reduction Agency (Fort
Belvoir, Virginia, USA).
NR 15
TC 9
Z9 9
U1 0
U2 4
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 JUL
PY 2013
VL 19
IS 7
BP 1108
EP 1110
DI 10.3201/eid1907.121563
PG 3
WC Immunology; Infectious Diseases
SC Immunology; Infectious Diseases
GA 268LZ
UT WOS:000328173600012
PM 23764023
ER
PT J
AU Nilsen, SL
Stone, WL
Burleson, SL
AF Nilsen, Stacy L.
Stone, Wendy L.
Burleson, Stephanie L.
TI Identifying Medical-Surgical Nursing Staff Perceptions of the
Drug-Abusing Patient
SO JOURNAL OF ADDICTIONS NURSING
LA English
DT Article
DE DDPPQ; nursing/nursing staff; substance abuse; therapeutic commitment
ID NURSES THERAPEUTIC ATTITUDE; USE ILLICIT DRUGS; SUBSTANCE USE; ALCOHOL;
HEALTH; EXPERIENCE; EDUCATION; KNOWLEDGE
AB Nurses report a negative, stereotypical, and moralistic view of substance-abusing patients. Unaddressed bias may impede delivery of quality care. There is limited research of the needs specific to medical-surgical nursing staff interacting with substance-abusing patients. Nursing therapeutic commitment refers to the degree the nurse feels prepared with an adequate knowledge base, professional support, and personal ownership of a patient condition. Low therapeutic commitment correlates with job dissatisfaction. The Drug and Drug Problems Perceptions Questionnaire assesses healthcare provider attitude and therapeutic commitment to patients using or abusing medication or illicit substances. This therapeutic commitment survey serves as a staff needs assessment for a targeted educational innovation. The results show that the medical and surgical nursing staff has a constructive attitude and a moderately high degree of therapeutic commitment to the drug-abusing patient population, similar to more specialized multidisciplinary, mental healthcare workers. This study showed that medical-surgical nurses feel professionally responsible and clinically supported with patients with primary or comorbid drug abuse. Consistent with established results, focused and ongoing education on the risk factors, outcomes, and physical and psychological effects of illicit substances is necessary to improve therapeutic commitment to drug-dependent patients.
C1 [Nilsen, Stacy L.; Stone, Wendy L.; Burleson, Stephanie L.] Naval Med Ctr San Diego, San Diego, CA USA.
RP Nilsen, SL (reprint author), Naval Hosp, POB 555191, Camp Pendleton, CA 92055 USA.
EM stacy.nilsen@med.navy.mil
NR 20
TC 0
Z9 0
U1 3
U2 9
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 1088-4602
EI 1548-7148
J9 J ADDICT NURS
JI J. Addict. Nurs.
PD JUL-SEP
PY 2013
VL 24
IS 3
BP 168
EP 172
DI 10.1097/JAN.0b013e3182a4cb9c
PG 5
WC Substance Abuse; Nursing
SC Substance Abuse; Nursing
GA 245YE
UT WOS:000326500000006
PM 24621546
ER
PT J
AU De Gregorio, BT
Stroud, RM
AF De Gregorio, B. T.
Stroud, R. M.
TI MINERALOGY OF TERMINAL PARTICLES FROM STARDUST TRACKS 180 AND 183
SO METEORITICS & PLANETARY SCIENCE
LA English
DT Meeting Abstract
CT 76th Annual Meeting of the Meteoritical-Society
CY JUL 29-AUG 02, 2013
CL Edmonton, CANADA
SP Meteorit Soc
ID COMET 81P/WILD-2
C1 [De Gregorio, B. T.; Stroud, R. M.] Naval Res Lab, Washington, DC USA.
[De Gregorio, B. T.] Nova Res Inc, Alexandria, VA USA.
EM bradley.degregorio.ctr@nrl.navy.mil
RI De Gregorio, Bradley/B-8465-2008
OI De Gregorio, Bradley/0000-0001-9096-3545
NR 8
TC 1
Z9 1
U1 0
U2 0
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 JUL
PY 2013
VL 48
SU 1
SI SI
BP A104
EP A104
PG 1
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA 237JN
UT WOS:000325865800074
ER
PT J
AU Stroud, RM
Bassim, ND
Scott, K
Nittler, LR
Herd, CDK
AF Stroud, R. M.
Bassim, N. D.
Scott, K.
Nittler, L. R.
Herd, C. D. K.
TI TAGISH LAKE NANOGLOBULES IN 3D: IN SITU MICROSTRUCTURAL ANALYSIS WITH
FOCUSED ION BEAM TOMOGRAPHY
SO METEORITICS & PLANETARY SCIENCE
LA English
DT Meeting Abstract
CT 76th Annual Meeting of the Meteoritical-Society
CY JUL 29-AUG 02, 2013
CL Edmonton, CANADA
SP Meteorit Soc
C1 [Stroud, R. M.; Bassim, N. D.] Naval Res Lab, Washington, DC 20375 USA.
[Scott, K.] NIST, Gaithersburg, MD 20899 USA.
[Nittler, L. R.] Carnegie Inst Sci, Washington, DC 20015 USA.
[Herd, C. D. K.] Univ Alberta, Edmonton, AB T6G 2E3, Canada.
RI Scott, Keana/J-5717-2015
NR 5
TC 0
Z9 0
U1 1
U2 4
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 JUL
PY 2013
VL 48
SU 1
SI SI
BP A328
EP A328
PG 1
WC Geochemistry & Geophysics
SC Geochemistry & Geophysics
GA 237JN
UT WOS:000325865800298
ER
PT J
AU Coxson, GE
Haloupek, W
AF Coxson, Gregory E.
Haloupek, William
TI Construction of Complementary Code Matrices for Waveform Design
SO IEEE TRANSACTIONS ON AEROSPACE AND ELECTRONIC SYSTEMS
LA English
DT Article
ID COMPLEX HADAMARD-MATRICES; SEQUENCES
AB A set of unimodular code vectors is complementary if the sum, over all code vectors, of the aperiodic autocorrelation sidelobes is zero. Complementary code sets are constructed using a matrix formulation in which code vectors form the columns of a matrix, called a complementary code matrix (CCM). Known construction methods for Hadamard matrices are examined and found to apply to the larger class of CCMs, in some cases with the addition or strengthening of conditions. These constructions include the Sylvester, Williamson, and Kronecker product constructions. Additional approaches for creating new CCMs from available CCMs are introduced and discussed. A future paper will focus on existence results for binary CCMs and on parametric families of unimodular CCMs. Special cases of CCMs are binary CCMs and Hadamard matrices.
C1 [Coxson, Gregory E.] USN, Res Lab, Div Radar, Washington, DC 20010 USA.
[Haloupek, William] Univ Wisconsin Stout, Menomonie, WI USA.
[Haloupek, William] Raytheon Co, Waltham, MA USA.
[Haloupek, William] Coll New Jersey, Ewing, NJ USA.
RP Coxson, GE (reprint author), USN, Res Lab, Div Radar, 4555 Overlook Ave SW, Washington, DC 20010 USA.
EM gcoxson@ieee.org
NR 21
TC 4
Z9 4
U1 0
U2 1
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0018-9251
EI 1557-9603
J9 IEEE T AERO ELEC SYS
JI IEEE Trans. Aerosp. Electron. Syst.
PD JUL
PY 2013
VL 49
IS 3
BP 1806
EP 1816
PG 11
WC Engineering, Aerospace; Engineering, Electrical & Electronic;
Telecommunications
SC Engineering; Telecommunications
GA 235ZG
UT WOS:000325761900028
ER
PT J
AU Briggs, MJ
Silver, A
Kopp, PJ
Santangelo, FA
Mathis, IA
AF Briggs, Michael J.
Silver, Andrew
Kopp, Paul J.
Santangelo, Frank A.
Mathis, Ian A.
TI Validation of a Risk-Based Numerical Model for Predicting Deep-Draft
Underkeel Clearance
SO JOURNAL OF WATERWAY PORT COASTAL AND OCEAN ENGINEERING
LA English
DT Article
DE Navigation; Channels; Probabilities; Design; Ships; Numerical models;
Risk management; Navigation; Channels; Underkeel clearance;
Probabilistic deep-draft channel design; Wave-induced ship motions; DGPS
ship measurements
AB The channel analysis and design evaluation tool (CADET) is a numerical program to determine the optimum dredge depth for the offshore portions of entrance channels. A brief description of the theoretical basis and risk assessment in CADET is presented. Validation comparisons between CADET predictions and field measurements of wave-induced vertical motions at Ambrose Channel, New York, are presented. Prototype ship motions were measured with a differential global positioning system in April 1998 along three 488-m-long reaches. Comparisons were made with six ships, three tankers and three containerships, during inbound and outbound transits. In general, the CADET predictions matched the field measurements reasonably well, especially considering the wave heights were relatively small during the measurement period. (C) 2013 American Society of Civil Engineers.
C1 [Briggs, Michael J.] US Army, Coastal & Hydraul Lab, Engineer Res & Dev Ctr, Vicksburg, MS 39180 USA.
[Silver, Andrew; Kopp, Paul J.] Naval Surface Warfare Ctr, Carderock Div, Seakeeping Dept, West Bethesda, MD 20817 USA.
[Santangelo, Frank A.] US Army, Corps Engineers, New York, NY 10278 USA.
[Mathis, Ian A.] US Army, Inst Water Resources, Corps Engineers, Alexandria, VA 22315 USA.
RP Briggs, MJ (reprint author), US Army, Coastal & Hydraul Lab, Engineer Res & Dev Ctr, 3909 Halls Ferry Rd, Vicksburg, MS 39180 USA.
EM Michael.J.Briggs@usace.army.mil; Andrew.Silver@navy.mil;
Paul.Kopp@navy.mil; Frank.A.Santangelo@usace.army.mil;
Ian.A.Mathis@usace.army.mil
FU Coastal and Hydraulics Laboratory (CHL) Improved Ship Simulations Work
Unit in the Navigation Systems Research Program; IWR Optimization Tools
for Navigation (OTN) Program
FX The authors wish to acknowledge Headquarters, U.S. Army Corps of
Engineers, the Institute for Water Resources (IWR), and the Naval
Surface Warfare Center, Carderock Division, for authorizing publication
of this paper. This study was supported by the Coastal and Hydraulics
Laboratory (CHL) Improved Ship Simulations Work Unit in the Navigation
Systems Research Program and the IWR Optimization Tools for Navigation
(OTN) Program. The authors would like to acknowledge the assistance of
the New York District, and Randy McCollum and Terry Waller, CHL, for
providing channel, ship, and DGPS data. The authors also wish to thank
the reviewers for their useful suggestions.
NR 16
TC 3
Z9 3
U1 1
U2 5
PU ASCE-AMER SOC CIVIL ENGINEERS
PI RESTON
PA 1801 ALEXANDER BELL DR, RESTON, VA 20191-4400 USA
SN 0733-950X
EI 1943-5460
J9 J WATERW PORT C
JI J. Waterw. Port Coast. Ocean Eng.
PD JUL 1
PY 2013
VL 139
IS 4
BP 267
EP 276
DI 10.1061/(ASCE)WW.1943-5460.0000176
PG 10
WC Engineering, Civil; Engineering, Ocean; Water Resources
SC Engineering; Water Resources
GA 239KF
UT WOS:000326021500003
ER
PT J
AU Zhang, GP
Yin, H
Lei, ZY
Reed, AH
Furukawa, Y
AF Zhang, Guoping
Yin, Hang
Lei, Zhenyu
Reed, Allen H.
Furukawa, Yoko
TI Effects of exopolymers on particle size distributions of suspended
cohesive sediments
SO JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
LA English
DT Article
DE particle size distribution; cohesive sediment; exopolymer; flocculation;
flocs; multimodality
ID ORGANIC-MATTER; GUAR GUM; FLOCCULATION; AGGREGATION; SUSPENSIONS;
VISCOSITY; BREAKAGE; STRENGTH; COLLOIDS; ESTUARY
AB The effects of exopolymers on the particle size distributions (PSDs) of suspended cohesive sediments were investigated in laboratory using four abundant clay minerals, kaolinite, illite, Na-montmorillonite, and Ca-montmorillonite, and two exopolymers, xanthan and guar, at six different exopolymer to clay ratios (E/C; i.e., 0, 1, 2, 5, 10, and 20 wt %) to represent the compositional variability of cohesive sediments in natural waters. Results show that the clay-exopolymer suspensions possess multimodal PSD. Statistical deconvolution of the PSD curves indicates that the suspensions consist of four discrete particle groups, primary particles, flocculi, microflocs, and macroflocs, all of which exhibit a unimodal lognormal distribution. Furthermore, such deconvolution quantifies the mean size and fraction of each particle group, leading to a more quantitative understanding of PSD kinetics of these sediments. Both clay surface charges and exopolymer polarity as well as the E/C affect the PSD kinetics. While neutral guar causes flocculation for all four clay minerals, anionic xanthan only induces flocculation for kaolinite with very low surface charges, but not for the other three clay minerals with relatively high charges. The fraction of each particle group also varies with the E/C, and such complex changes depend upon the interfacial interactions between clay particles and exopolymer molecules. For each exopolymer, critical E/C exists that can lead to a maximum or minimum fraction of microflocs or macroflocs. The role of exopolymer bridging, Coulomb force, and hydrogen bond in affecting the PSD kinetics of cohesive sediments is also discussed.
C1 [Zhang, Guoping; Yin, Hang; Lei, Zhenyu] Louisiana State Univ, Dept Civil & Environm Engn, Baton Rouge, LA 70803 USA.
[Lei, Zhenyu] Tongji Univ, Inst Railway & Urban Mass Transit, Shanghai 200092, Peoples R China.
[Reed, Allen H.; Furukawa, Yoko] Naval Res Lab, Seafloor Sci Branch, Stennis Space Ctr, MS USA.
RP Zhang, GP (reprint author), Louisiana State Univ, Dept Civil & Environm Engn, Baton Rouge, LA 70803 USA.
EM gzhang@alum.mit.edu
FU Office of Naval Research through Naval Research Laboratory as part of
the NRL ARI "Biogeochemical Influences on Cohesive Sediment Strength in
Marine and Estuarine Environments" [N00173-10-1-G013, PE 061153N];
Louisiana Board of Regents Enhancement Program
FX This study was partially supported by the Office of Naval Research
through Naval Research Laboratory base funding under award
N00173-10-1-G013 as part of the NRL ARI "Biogeochemical Influences on
Cohesive Sediment Strength in Marine and Estuarine Environments" (PE
061153N). The Cilas PSA used in this study was purchased using the fund
from the Louisiana Board of Regents Enhancement Program.
NR 40
TC 4
Z9 4
U1 1
U2 15
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 JUL
PY 2013
VL 118
IS 7
BP 3473
EP 3489
DI 10.1002/jgrc.20263
PG 17
WC Oceanography
SC Oceanography
GA 224KY
UT WOS:000324885400016
ER
PT J
AU Bogucki, DJ
Drennan, WM
Woods, S
Gremes-Cordero, S
Long, DG
Mitchell, C
AF Bogucki, D. J.
Drennan, W. M.
Woods, S.
Gremes-Cordero, S.
Long, D. G.
Mitchell, C.
TI Short surface waves in the Canadian Arctic in 2007 and 2008
SO JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
LA English
DT Article
DE waves; microwave; scatterometer
ID GAS TRANSFER; WIND-WAVES; RANDOM SEA; SCATTEROMETER; REFLECTION;
SEAWINDS; BREAKING; SPECTRA
AB We have collected time series data of short oceanic waves as a part of the International Polar Year (IPY) 2007-2008. Using a shipboard laser wave slope (LAWAS) system operating at 900 nm, we have obtained wave slopes measurements up to 60 rad m(-1) wave number. We have compared our in situ wave slopes with collocated and concurrent high-resolution upwind Normalized Radar Cross Sections (NRCS) collected by QuikSCAT. The LAWAS measured wave slope spectra were consistent with local wind speeds and QuikSCAT measured NRCS. Our measured short wave mean slopes indicate their enhancement by long waves (0-1 rad m(-1)) at small values of long-wave slope. Concurrent with wave slope measurements, the strength of the reflected LAWAS light beam was analyzed in terms of the light attenuation coefficient at 900 nm. We have observed a correlation between surface elevation and light attenuation. The mechanism of wave modulated beam attenuation was found to be related to the instantaneous long wave skewness.
C1 [Bogucki, D. J.; Mitchell, C.] Texas A&M Univ, Dept Phys & Environm Sci, Corpus Christi, TX 78412 USA.
[Drennan, W. M.; Gremes-Cordero, S.] Univ Miami, RSMAS, Miami, FL USA.
[Woods, S.] NRL, Stennis, MS USA.
[Long, D. G.] Brigham Young Univ, Dept Elect & Comp Engn, Provo, UT 84602 USA.
RP Bogucki, DJ (reprint author), Texas A&M Univ, Dept Phys & Environm Sci, Corpus Christi, TX 78412 USA.
EM Darek.Bogucki@tamucc.edu
RI Gremes-Cordero, Silvia/J-2684-2013; Long, David/K-4908-2015
OI Long, David/0000-0002-1852-3972
FU NASA Physical Oceanography program
FX We acknowledge the assistance of Tom Snowdon in preparation and assembly
of the LAWAS system and Miguel Izaguirre with LabView programming. We
also thank the Captains and crews of the CCGS Amundsen, our fellow CFL
scientists, and in particular CFL PI Dave Barber. D.J.B. and W. M. D.
acknowledge the support of the NASA Physical Oceanography program. We
thank the editor anonymous reviewers for their constructive comments,
which helped us to improve the manuscript.
NR 32
TC 1
Z9 1
U1 0
U2 5
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 JUL
PY 2013
VL 118
IS 7
BP 3712
EP 3722
DI 10.1002/jgrc.20273
PG 11
WC Oceanography
SC Oceanography
GA 224KY
UT WOS:000324885400032
ER
PT J
AU Willer, RL
Storey, RF
Deschamps, JR
Frisch, M
AF Willer, R. L.
Storey, R. F.
Deschamps, J. R.
Frisch, M.
TI Synthesis and Crystal Structure of
4,4-(Methylenediimino)bis-1,2,5-Oxadiazole-3-carboxylic Acid and
Carboxamide
SO JOURNAL OF HETEROCYCLIC CHEMISTRY
LA English
DT Article
ID ANTHRANILIC ACID
AB 4,4-(Methylenediimino)bis-1,2,5-oxadiazole-3-carboxylic acid and 4,4-(methylenediimino)bis-1,2,5-oxadiazole-3-carboxamide have been synthesized by the acid-catalyzed condensation of 4-amino-1,2,5-oxadiazole-3-carboxylic acid and 4-amino-1,2,5-oxadiazole-3-carboxamide with formaldehyde. The crystal and molecular structures of the compounds have been determined by X-ray crystallography. 4,4-(Methylenediimino)bis-1,2,5-oxadiazole-3-carboxylic acid crystallizes in space group C2/c, and its measured density is 1.800g/mL, significantly above the calculated value of 1.68g/mL. 4,4-(Methylenediimino)bis-1,2,5-oxadiazole-3-carboxamide crystallizes in space group P21/c, and its measured density is 1.623g/mL, in close agreement with the calculated value of 1.64g/mL. The structure of the starting amide 4-amino-1,2,5-oxadiazole-3-carboxamide has also been determined. These data, combined with literature data, suggest that ortho-aminocarboxylic acids have unusually high densities, but the reasons for this are unclear.
C1 [Willer, R. L.; Storey, R. F.] Univ So Mississippi, Sch Polymers & High Performance Mat, Hattiesburg, MS 39406 USA.
[Deschamps, J. R.; Frisch, M.] Naval Res Lab, Washington, DC 20375 USA.
RP Willer, RL (reprint author), Univ So Mississippi, Sch Polymers & High Performance Mat, 118 Coll Dr 5050, Hattiesburg, MS 39406 USA.
EM Rodney.Willer@usm.edu
FU Office of Naval Research [N00014081006, N00014-10-AF-0-0002]
FX This work was funded by grantsN00014081006 (USM) and N00014-10-AF-0-0002
(NRL) from the Office of Naval Research (Dr. Clifford Bedford).
NR 16
TC 0
Z9 0
U1 0
U2 6
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0022-152X
EI 1943-5193
J9 J HETEROCYCLIC CHEM
JI J. Heterocycl. Chem.
PD JUL
PY 2013
VL 50
IS 4
BP 949
EP 954
DI 10.1002/jhet.1547
PG 6
WC Chemistry, Organic
SC Chemistry
GA 238EL
UT WOS:000325924800033
ER
PT J
AU Roland, CM
AF Roland, C. M.
TI UNCONVENTIONAL RUBBER NETWORKS: CIRCUMVENTING THE COMPROMISE BETWEEN
STIFFNESS AND STRENGTH
SO RUBBER CHEMISTRY AND TECHNOLOGY
LA English
DT Article
ID INTERPENETRATING POLYMER NETWORKS; DRUG-RELEASE; HYDROGELS; ELASTOMERS;
STRAIN; BIOMATERIALS; BEHAVIOR; MODULUS; IPN; MISCIBILITY
AB The failure properties of rubbery networks exhibit a maximum as a function of cross-link density or modulus. To avoid excess creep, elastomers are usually formulated such that their state of cure falls past this maximum, which means there is an inevitable compromise between modulus and failure properties (stiffness and strength). This review describes various approaches to circumventing the problem by the use of unconventional network structures. The obtainable improvements in mechanical properties can be substantial (e.g., threefold increases or greater in strength), although these methods entail additional processing steps or the use of blends and may affect the hysteresis of an elastomer; thus, their practical utility cannot be assessed a priori.
C1 Naval Res Lab, Div Chem, Washington, DC 20375 USA.
RP Roland, CM (reprint author), Naval 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.
NR 73
TC 3
Z9 3
U1 1
U2 8
PU AMER CHEMICAL SOC INC
PI AKRON
PA RUBBER DIV UNIV AKRON PO BOX 499, AKRON, OH 44309-0499 USA
SN 0035-9475
EI 1943-4804
J9 RUBBER CHEM TECHNOL
JI Rubber Chem. Technol.
PD JUL-SEP
PY 2013
VL 86
IS 3
BP 351
EP 366
DI 10.5256/rct.13.86988
PG 16
WC Polymer Science
SC Polymer Science
GA 227MS
UT WOS:000325118600002
ER
PT J
AU Patridge, CJ
Love, CT
Swider-Lyons, KE
Twigg, ME
Ramaker, DE
AF Patridge, Christopher J.
Love, Corey T.
Swider-Lyons, Karen E.
Twigg, Mark E.
Ramaker, David E.
TI In-situ X-ray absorption spectroscopy analysis of capacity fade in
nanoscale-LiCoO2
SO JOURNAL OF SOLID STATE CHEMISTRY
LA English
DT Article
DE Cathode; Surface; SEI; Delta mu; XANES; EXAFS
ID RECHARGEABLE LITHIUM BATTERIES; HIGH-RATE PERFORMANCE; LI-ION BATTERIES;
CATHODE MATERIAL; LICOO2 NANOPARTICLES; ELECTRONIC-STRUCTURE; COBALT
DISSOLUTION; STRUCTURAL-CHANGES; LOCAL-STRUCTURE; INTERCALATION
AB The local structure of nanoscale (similar to 10 similar to 40 nm) LiCoO2 is monitored during electrochemical cycling utilizing in-situ X-ray absorption spectroscopy (XAS). The high surface area of the LiCoO2 nanoparticles not only enhances capacity fade, but also provides a large signal from the particle surface relative to the bulk. Changes in the nanoscale LiCoO2 metal-oxide bond lengths, structural disorder, and chemical state are tracked during cycling by adapting the delta mu (Ay) technique in complement with comprehensive extended X-ray absorption fine structure (EXAFS) modeling. For the first time, we use a AL/ EXAFS method, and by comparison of the difference EXAFS spectra, extrapolate significant coordination changes and reduction of cobalt species with cycling. This combined approach suggests Li-Co site exchange at the surface of the nanoscale LiCoO2 as a likely factor in the capacity fade and irreversible losses in practical, microscale LiCoO2. Published by Elsevier Inc.
C1 [Patridge, Christopher J.] US Naval Res Lab, Washington, DC 20375 USA.
[Love, Corey T.; Swider-Lyons, Karen E.] US Naval Res Lab, Div Chem, Washington, DC 20375 USA.
[Twigg, Mark E.] US Naval Res Lab, Elect Sci & Technol Div, Washington, DC 20375 USA.
[Ramaker, David E.] US Naval Res Lab, Div Chem, Washington, DC 20375 USA.
RP Love, CT (reprint author), US Naval Res Lab, Div Chem, Code 6113, Washington, DC 20375 USA.
EM corey.love@nrl.navy.mil
FU U.S. Department of Energy, Division of Material Sciences and Division of
Chemical Sciences [DE-AC02-98CH10886]; U.S. Naval Research Laboratory
FX The authors are grateful to the Office of Naval Research for support of
this work through the Naval Research Laboratory. The authors also thank
Dr. Michael Pomfret for Raman spectroscopy measurements. The synchrotron
measurements were successful due to the help of Dr. Kumi Pandya. 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 number DE-AC02-98CH10886. The X11 beamline is supported
by the U.S. Naval Research Laboratory and contributions from
Participating Research Team (PRT) members.
NR 71
TC 7
Z9 7
U1 6
U2 84
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0022-4596
EI 1095-726X
J9 J SOLID STATE CHEM
JI J. Solid State Chem.
PD JUL
PY 2013
VL 203
BP 134
EP 144
DI 10.1016/j.jssc.2013.04.008
PG 11
WC Chemistry, Inorganic & Nuclear; Chemistry, Physical
SC Chemistry
GA 228MG
UT WOS:000325190300021
ER
PT J
AU McCormick, ME
Murtha, RC
Steinmetz, J
AF McCormick, Michael E.
Murtha, Robert C.
Steinmetz, Jeffrey
TI Wave Energy Conversion for Shoreline Protection
SO MARINE TECHNOLOGY SOCIETY JOURNAL
LA English
DT Article
DE shore protection; Antenna Buoy; wave energy
AB This paper is based, on the premise that "wave energy conversion" is the conversion of the energy of ocean waves into other energy forms for the benefit of the environment. By taking advantage of the diffraction focusing phenomenon, commonly associated with water wave energy conversion, a bimodal buoy called the Antenna Buoy has been developed to both attract and dissipate incident water wave energy. As a result, arrays of the buoy can be deployed to form an effective floating breakwater system. Results from a full-scale experimental study show that an array of buoys, with each buoy pair separated by about 10 body widths, can disipate up to 65% of the incident wave energy, where the value, the full-scale test was conducted in a vertical-walled tank, where wall reflections were from "virtual" units in an array. The full-scale model used in the study is based on the averaged wave climate in the central-to-northern waters of the Chesapeake Bay. In addition to being effective in its design operation, the bimodal buoy can be repositioned or removed, as the site situation might require.
C1 [McCormick, Michael E.] US Naval Acad, Dept Naval Architecture & Ocean Engn, Annapolis, MD USA.
[Murtha, Robert C.] Murtech Inc, Glen Burnie, MD USA.
RP McCormick, ME (reprint author), US Naval Acad, Dept Naval Architecture & Ocean Engn, Annapolis, MD USA.
EM mmcormi@usna.edu
NR 9
TC 0
Z9 0
U1 1
U2 3
PU MARINE TECHNOLOGY SOC INC
PI COLUMBIA
PA 5565 STERRETT PLACE, STE 108, COLUMBIA, MD 21044 USA
SN 0025-3324
J9 MAR TECHNOL SOC J
JI Mar. Technol. Soc. J.
PD JUL-AUG
PY 2013
VL 47
IS 4
BP 187
EP 192
PG 6
WC Engineering, Ocean; Oceanography
SC Engineering; Oceanography
GA 223WY
UT WOS:000324844400019
ER
PT J
AU Park, J
Helmboldt, J
Grejner-Brzezinska, DA
von Frese, RRB
Wilson, TL
AF Park, Jihye
Helmboldt, Joseph
Grejner-Brzezinska, Dorota A.
von Frese, Ralph R. B.
Wilson, Thomas L.
TI Ionospheric observations of underground nuclear explosions (UNE) using
GPS and the Very Large Array
SO RADIO SCIENCE
LA English
DT Article
DE Global Navigation Satellite System (GNSS); Very Large Array (VLA); total
electronic contents (TEC); underground nuclear explosion (UNE);
traveling ionospheric disturbances (TIDs)
ID GRAVITY-WAVES; DISTURBANCES
AB Observations from Global Positioning System (GPS) receivers and the Very Large Array (VLA) radio telescope recorded traveling ionospheric disturbances (TID) from underground nuclear explosions (UNEs), detonated in September 1992. The slant TEC (STEC) data derived from GPS observations were processed for all ray paths to isolate TIDs. For the TIDs from the Hunters Trophy test on 18 September 1992 and the Divider test on 23 September 1992, the propagated mean velocities of the TIDs were about 573m/s and 740m/s with standard deviations of 85m/s and 135 m/s, respectively. For the VLA observations, the spectral analysis produced three-dimensional fluctuation spectral cubes for the Hunters Trophy event. The arrival time of the TID at the VLA implied a propagation speed of 570-710 m/s. This study suggests the global availability of GNSS tracking networks and new low-frequency (VHF) radio telescopes may offer a method of UNE detection and characterization, which could complement the International Monitoring System (IMS).
C1 [Park, Jihye; Grejner-Brzezinska, Dorota A.] Ohio State Univ, Dept Civil Environm & Geodet Engn, Columbus, OH 43221 USA.
[Helmboldt, Joseph; Wilson, Thomas L.] US Naval Res Lab, Washington, DC USA.
[von Frese, Ralph R. B.] Ohio State Univ, Sch Earth Sci, Columbus, OH 43221 USA.
RP Park, J (reprint author), Ohio State Univ, Dept Civil Environm & Geodet Engn, Riverside Dr, Columbus, OH 43221 USA.
EM jihyepark1@gmail.com
RI Helmboldt, Joseph/C-8105-2012
FU 6.1 base funding
FX Basic research at the Naval Research Laboratory is supported by 6.1 base
funding. The National Radio Astronomy Observatory is a facility of the
National Science Foundation operated under cooperative agreement by
Associated Universities, Inc.
NR 18
TC 0
Z9 0
U1 0
U2 16
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 JUL
PY 2013
VL 48
IS 4
BP 463
EP 469
DI 10.1002/rds.20053
PG 7
WC Astronomy & Astrophysics; Geochemistry & Geophysics; Meteorology &
Atmospheric Sciences; Remote Sensing; Telecommunications
SC Astronomy & Astrophysics; Geochemistry & Geophysics; Meteorology &
Atmospheric Sciences; Remote Sensing; Telecommunications
GA 224WF
UT WOS:000324921400010
ER
PT J
AU Kantsyrev, VL
Chuvatin, AS
Esaulov, AA
Safronova, AS
Rudakov, LI
Velikovich, A
Williamson, KM
Osborne, GC
Shrestha, IK
Weller, ME
Shlyaptseva, VV
AF Kantsyrev, V. L.
Chuvatin, A. S.
Esaulov, A. A.
Safronova, A. S.
Rudakov, L. I.
Velikovich, A.
Williamson, K. M.
Osborne, G. C.
Shrestha, I. K.
Weller, M. E.
Shlyaptseva, V. V.
TI Anisotropy of radiation emitted from planar wire arrays
SO PHYSICS OF PLASMAS
LA English
DT Article
ID Z-PINCHES
AB The planar wire array (PWA) is a promising load for new multi-source inertial confinement fusion (ICF) hohlraums [B. Jones et al., Phys. Rev. Lett. 104, 125001 (2010)]. The hohlraum radiation symmetry is an important issue for ICF. It was found that extreme ultraviolet and sub-keV photon emission from PWAs may have considerable anisotropy in the load azimuthal plane. This experimental result is obtained on the UNR 1-1.7 MA Zebra generator. The time-dependent anisotropy effect is detected. This feature is studied in 2D numerical simulations and can be explained by initial anisotropy of implosion of those non-cylindrical loads radiating essentially as surface sources in sub-keV quanta and also by radiation absorption in cold magnetized plasma tails forming in the direction of magnetic compression. (C) 2013 AIP Publishing LLC.
C1 [Kantsyrev, V. L.; Esaulov, A. A.; Safronova, A. S.; Williamson, K. M.; Osborne, G. C.; Shrestha, I. K.; Weller, M. E.; Shlyaptseva, V. V.] Univ Nevada, Dept Phys, Reno, NV 89557 USA.
[Chuvatin, A. S.] Ecole Polytech, Lab Phys Plasmas, F-91128 Palaiseau, France.
[Rudakov, L. I.] Icarus Res Inc, Bethesda, MD 20824 USA.
[Velikovich, A.] Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
RP Kantsyrev, VL (reprint author), Univ Nevada, Dept Phys, Reno, NV 89557 USA.
FU DOE/NNSA [DE-FC52-06NA27586, DE-NA0001984]; [DE-FC52 06NA27616]
FX This work was supported by DOE/NNSA under Cooperative Agreements
DE-FC52-06NA27586 and DE-NA0001984 and in part by DE-FC52 06NA27616.
NR 23
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 1070-664X
J9 PHYS PLASMAS
JI Phys. Plasmas
PD JUL
PY 2013
VL 20
IS 7
AR 070702
DI 10.1063/1.4817023
PG 4
WC Physics, Fluids & Plasmas
SC Physics
GA 193CR
UT WOS:000322535400003
ER
PT J
AU Cunningham, PD
AF Cunningham, Paul D.
TI Accessing Terahertz Complex Conductivity Dynamics in the Time-Domain
SO IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY
LA English
DT Article
DE Time-resolved terahertz (THz) spectroscopy (TRTS); excited state
dynamics
ID SPECTROSCOPY; BULK
AB Time-resolved terahertz (THz) spectroscopy is frequently utilized to measure conductivity dynamics on ultrafast time scales. Typically photo-induced changes in the transmission of the peak of the THz waveform are recorded and thought to represent the real conductivity dynamics. Here we evaluate a time-domain scheme that accesses both the real and imaginary conductivity dynamics by recording the photo-induced change in the transmitted THz pulse at its peak and its zero-crossing, respectively. The applicability and limitations of this method are investigated by modeling the THz response of material systems with known conductivity dynamics. The relationship between measured time-domain dynamics and the actual charge carrier dynamics is discussed.
C1 Naval Res Lab, Div Elect Sci & Technol, Washington, DC 20375 USA.
RP Cunningham, PD (reprint author), Naval Res Lab, Div Elect Sci & Technol, Code 6812, Washington, DC 20375 USA.
EM paul.cunningham@nrl.navy.mil
NR 25
TC 2
Z9 2
U1 1
U2 18
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 2156-342X
J9 IEEE T THZ SCI TECHN
JI IEEE Trans. Terahertz Sci. Technol.
PD JUL
PY 2013
VL 3
IS 4
BP 494
EP 498
DI 10.1109/TTHZ.2013.2258193
PG 5
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA 210MD
UT WOS:000323836700024
ER
PT J
AU Vurgaftman, I
Bewley, WW
Canedy, CL
Kim, CS
Kim, M
Merritt, CD
Abell, J
Meyer, JR
AF Vurgaftman, Igor
Bewley, William W.
Canedy, Chadwick L.
Kim, Chul Soo
Kim, Mijin
Merritt, Charles D.
Abell, Joshua
Meyer, Jerry R.
TI Interband Cascade Lasers With Low Threshold Powers and High Output
Powers
SO IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
LA English
DT Article
DE GaSb; interband cascade lasers (ICLs); mid-infrared (mid-IR);
semiconductor lasers
ID CONTINUOUS-WAVE OPERATION; MU-M; ROOM-TEMPERATURE; QUANTUM-WELLS;
INTERSUBBAND TRANSITIONS; DIODE-LASERS; PERFORMANCE; RECOMBINATION;
SUPERLATTICES
AB The midwave infrared interband cascade laser (ICL) can operate at threshold power densities 30 times lower than those of the quantum cascade laser. This is ultimately attributable to the much longer interband carrier lifetime, rather than to specifics of the cavity dimensions and mirror reflectivities. The ICL is therefore an attractive candidate for insertion into the portable, battery-powered chemical sensors now being developed for this spectral region. We review the characteristics of ICLs operating at wavelengths from 2.9 to 5.5 mu m, and show that their Auger coefficients vary by less than a factor of 3 throughout this range. Consequently, the ICL performance degrades only modestly with increasing wavelength. We report that an epitaxial-side-down-mounted ICL ridge of width 30 mu m and lambda = 3.7 mu m emits more than 300 mW of continuous wave (CW) output power at room temperature with M-2 <= 3.1. A distributed-feedback ICL with a fourth-order grating etched into its corrugated sidewalls produces 55 mW of CW power in a single spectral mode at T = 25 degrees C.
C1 [Vurgaftman, Igor; Bewley, William W.; Canedy, Chadwick L.; Kim, Chul Soo; Merritt, Charles D.; Abell, Joshua; Meyer, Jerry R.] Naval Res Lab, Washington, DC 20375 USA.
[Kim, Mijin] Sotera Def Solut Inc, Annapolis Jct, MD 20701 USA.
RP Vurgaftman, I (reprint author), Naval Res Lab, Washington, DC 20375 USA.
EM vurgaftman@nrl.navy.mil; william.bewley@nrl.navy.mi;
chadwick.canedy@nrl.navy.mil; chulsoo.kim@nrl.navy.mil;
mijin.kim.ctr@nrl.navy.mil; charles.merritt@nrl.navy.mil;
joshua.abell@nrl.navy.mil; jerry.meyer@nrl.navy.mil
FU Office of Naval Research
FX This work was supported by the Office of Naval Research.
NR 54
TC 50
Z9 51
U1 8
U2 52
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1077-260X
J9 IEEE J SEL TOP QUANT
JI IEEE J. Sel. Top. Quantum Electron.
PD JUL-AUG
PY 2013
VL 19
IS 4
AR 1200210
DI 10.1109/JSTQE.2012.2237017
PG 10
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA 195QV
UT WOS:000322719600018
ER
PT J
AU Lee, WK
Haydell, M
Robinson, JT
Laracuente, AR
Cimpoiasu, E
King, WP
Sheehan, PE
AF Lee, Woo-Kyung
Haydell, Michael
Robinson, Jeremy T.
Laracuente, Arnaldo R.
Cimpoiasu, Elena
King, William P.
Sheehan, Paul E.
TI Nanoscale Reduction of Graphene Fluoride via Thermochemical
Nanolithography
SO ACS NANO
LA English
DT Article
DE graphene nanoribbons; graphene fluoride; thermochemical nanolithography;
atomic force microscopy
ID FLUORINATED GRAPHENE; OXIDE; NANORIBBONS; FLUOROGRAPHENE; FABRICATION;
DEVICES
AB Graphene nanoribbons (GNRs) would be the ideal building blocks for all carbon electronics; however, many challenges remain in developing an appropriate nanolithography that generates high-quality ribbons in registry with other devices. Here we report direct and local fabrication of GNRs by thermochemical nanolithography, which uses a heated AFM probe to locally convert highly insulating graphene fluoride to conductive graphene. Chemically isolated GNRs as narrow as 40 nm show p-doping behavior and sheet resistances as low as 22.9 K Omega/square in air, only approximately 10x higher than that of pristine graphene. The impact of probe temperature and speed are examined as well as the variable-temperature transport properties of the GNR.
C1 [Lee, Woo-Kyung; Robinson, Jeremy T.; Laracuente, Arnaldo R.; Sheehan, Paul E.] US Naval Res Lab, Washington, DC 20375 USA.
[Haydell, Michael; Cimpoiasu, Elena] US Naval Acad, Dept Phys, Annapolis, MD 21402 USA.
[King, William P.] Univ Illinois, Dept Mech Sci & Engn, Urbana, IL 61801 USA.
RP Lee, WK (reprint author), US Naval Res Lab, Washington, DC 20375 USA.
EM woo.lee@nrl.navy.mil
RI Robinson, Jeremy/F-2748-2010; Sheehan, Paul/B-4793-2010
OI Sheehan, Paul/0000-0003-2668-4124
FU DARPA Tip-Based Nanofabrication (TBN) program; NRL Nano-science
Institute; USNA Trident scholarship program
FX This work was supported by the DARPA Tip-Based Nanofabrication (TBN)
program and NRL Nano-science Institute. M.H. and E.C. acknowledge
support from the USNA Trident scholarship program.
NR 27
TC 20
Z9 21
U1 5
U2 89
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 JUL
PY 2013
VL 7
IS 7
BP 6219
EP 6224
DI 10.1021/nn4021746
PG 6
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 191MO
UT WOS:000322417400068
PM 23758200
ER
PT J
AU Cobas, E
Friedman, A
van't Erve, OJ
Robinson, JT
Jonker, BT
AF Cobas, Enrique
Friedman, Adaml.
van't Erve, Olafm. J.
Robinson, Jeremy T.
Jonker, Berend T.
TI Graphene-Based Magnetic Tunnel Junctions
SO IEEE TRANSACTIONS ON MAGNETICS
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
DE Graphene; spintronics; tunnel barrier; tunnel junction
ID SPIN TRANSPORT; MAGNETORESISTANCE; TEMPERATURE; LOGIC; FILMS
AB The growing field of spintronics relies on new techniques and technologies for injecting and detecting electron spins to generate spin-dependent signals and utilize spin as a new state variable. Magnetic tunnel junctions (MTJs) do this by employing thin oxide layers as insulating barriers between two ferromagnetic metals, but the oxides suffer from defects and material interdiffusion that limit device performance. In this work, we demonstrate that graphene, a material widely studied for its high lateral conductance, functions as a tunnel barrier in the out-of-plane direction. We fabricate graphene-based MTJs and characterize spin and charge transport as a function of bias and temperature from 4 to 425 K The device behavior fits well with traditional charge and spin-polarized tunneling transport models. This result has implications for development of new, ultra-low power spin-based devices such as magnetic random access memory (MRAM), spin logic, and reconfigurable circuits.
C1 [Cobas, Enrique; Friedman, Adaml.; van't Erve, Olafm. J.; Robinson, Jeremy T.; Jonker, Berend T.] Naval Res Lab, Washington, DC 20375 USA.
RP Cobas, E (reprint author), Naval Res Lab, Washington, DC 20375 USA.
EM enrique.cobas@nrl.navy.mil
RI Robinson, Jeremy/F-2748-2010; Friedman, Adam/D-9610-2011
OI Friedman, Adam/0000-0003-0597-5432
FU Naval Research Laboratory; Office of Naval Research; NRL Karles
Fellowship
FX This work was supported in part by core funding from the Naval Research
Laboratory and the Office of Naval Research. E.Cobas and A. L. Friedman
were supported in part by the NRL Karles Fellowship. The authors would
like to thank the NRL Nanoscience Institute for use of their facilities.
NR 28
TC 8
Z9 8
U1 0
U2 38
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0018-9464
EI 1941-0069
J9 IEEE T MAGN
JI IEEE Trans. Magn.
PD JUL
PY 2013
VL 49
IS 7
BP 4343
EP 4346
DI 10.1109/TMAG.2013.2245107
PG 4
WC Engineering, Electrical & Electronic; Physics, Applied
SC Engineering; Physics
GA 192KM
UT WOS:000322483200321
ER
PT J
AU Shaffer, J
AF Shaffer, Jason
TI Entertaining Crisis in the Atlantic Imperium, 1770-1790
SO THEATRE RESEARCH INTERNATIONAL
LA English
DT Book Review
C1 [Shaffer, Jason] USN Acad, Annapolis, MD 21402 USA.
RP Shaffer, J (reprint author), USN Acad, Annapolis, MD 21402 USA.
EM tshaffer@usna.edu
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 0307-8833
J9 THEATRE RES INT
JI Theatre Res. Int.
PD JUL
PY 2013
VL 38
IS 2
SI SI
BP 174
EP 175
DI 10.1017/S0307883313000187
PG 3
WC Theater
SC Theater
GA 199OQ
UT WOS:000323004700024
ER
PT J
AU Porch, D
AF Porch, Douglas
TI Invisible Armies: An Epic History of Guerrilla Warfare from Ancient
Times to the Present
SO WAR IN HISTORY
LA English
DT Book Review
C1 [Porch, Douglas] Naval Postgrad Sch, Monterey, CA 93943 USA.
RP Porch, D (reprint author), Naval Postgrad Sch, Monterey, CA 93943 USA.
NR 1
TC 0
Z9 0
U1 0
U2 3
PU SAGE PUBLICATIONS LTD
PI LONDON
PA 1 OLIVERS YARD, 55 CITY ROAD, LONDON EC1Y 1SP, ENGLAND
SN 0968-3445
J9 WAR HIST
JI War Hist.
PD JUL
PY 2013
VL 20
IS 3
BP 412
EP 414
DI 10.1177/0968344513481308a
PG 3
WC History; International Relations
SC History; International Relations
GA 197AW
UT WOS:000322820500008
ER
PT J
AU Makiharju, SA
Gabillet, C
Paik, BG
Chang, NA
Perlin, M
Ceccio, SL
AF Maekiharju, Simo A.
Gabillet, Celine
Paik, Bu-Geun
Chang, Natasha A.
Perlin, Marc
Ceccio, Steven L.
TI Time-resolved two-dimensional X-ray densitometry of a two-phase flow
downstream of a ventilated cavity
SO EXPERIMENTS IN FLUIDS
LA English
DT Article
ID VOID FRACTION MEASUREMENTS; ELECTRICAL-IMPEDANCE; MULTIPHASE FLOWS;
OPTICAL PROBES; VEILING GLARE; BUBBLY FLOWS; TOMOGRAPHY; REMOVAL; LAYER;
DECONVOLUTION
AB To measure the void fraction distribution in gas-liquid flows, a two-dimensional X-ray densitometry system was developed. This system is capable of acquiring a two-dimensional projection with a 225 cm 2 area of measurement through 21 cm of water. The images can be acquired at rates on the order of 1 kHz. Common sources of error in X-ray imaging, such as X-ray scatter, image distortion, veiling glare, and beam hardening, were considered and mitigated. The measured average void fraction was compared successfully to that of a phantom target and found to be within 1 %. To evaluate the performance of the new system, the flow in and downstream of a ventilated nominally two-dimensional partial cavity was investigated and compared to measurements from dual-tip fiber optical probes and high-speed video. The measurements were found to have satisfactory agreement for void fractions above 5 % of the selected void fraction measurement range.
C1 [Maekiharju, Simo A.; Perlin, Marc; Ceccio, Steven L.] Univ Michigan, Ann Arbor, MI 48109 USA.
[Gabillet, Celine] French Naval Acad, Ecole Navale, Res Inst, Brest, France.
[Paik, Bu-Geun] Korea Inst Ocean Sci & Technol, Taejon, South Korea.
[Chang, Natasha A.] Naval Surface Warfare Ctr, Carderock Div, Bethesda, MD USA.
RP Makiharju, SA (reprint author), Univ Michigan, Ann Arbor, MI 48109 USA.
EM smakihar@umich.edu
RI Makiharju, Simo/M-6183-2014
OI Makiharju, Simo/0000-0002-3818-8649;
FU Office of Naval Research [N00014-10-1-0974]
FX We acknowledge the assistance of Prof. Michael Flynn and Dr. Alexander
Mychkovsky during the design of the X-ray densitometry system, and Mr.
Christopher Haddad for his contribution in processing of the high-speed
video images. The authors are grateful for the support of the Office of
Naval Research under Grant N00014-10-1-0974 with Dr. L. P. Purtell,
Program Manager.
NR 33
TC 10
Z9 10
U1 2
U2 17
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0723-4864
J9 EXP FLUIDS
JI Exp. Fluids
PD JUL
PY 2013
VL 54
IS 7
AR 1561
DI 10.1007/s00348-013-1561-z
PG 21
WC Engineering, Mechanical; Mechanics
SC Engineering; Mechanics
GA 188IK
UT WOS:000322186200017
ER
PT J
AU Xu, P
Barber, SD
Schoelz, JK
Ackerman, ML
Qi, DJ
Thibado, PM
Wheeler, VD
Nyakiti, LO
Myers-Ward, RL
Eddy, CR
Gaskill, DK
AF Xu, Peng
Barber, Steven D.
Schoelz, J. Kevin
Ackerman, Matthew L.
Qi, Dejun
Thibado, Paul M.
Wheeler, Virginia D.
Nyakiti, Luke O.
Myers-Ward, Rachael L.
Eddy, Charles R., Jr.
Gaskill, D. Kurt
TI Atomic-scale movement induced in nanoridges by scanning tunneling
microscopy on epitaxial graphene grown on 4H-SiC(0001)
SO JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B
LA English
DT Article
ID SUSPENDED GRAPHENE; SILICON-CARBIDE; WAFER-SCALE; GRAPHITE; CONFINEMENT;
MOBILITY; SURFACE
AB Nanoscale ridges in epitaxial multilayer graphene grown on the silicon face of 4 degrees off-cut 4H-SiC (0001) were found using scanning tunneling microscopy (STM). These nanoridges are only 0.1 nm high and 25-50 nm wide, making them much smaller than previously reported ridges. Atomic-resolution STM was performed near and on top of the nanoridges using a dual scanning technique in which forward and reverse images are simultaneously recorded. An apparent 100% enlarged graphene lattice constant is observed along the leading edge of the image for both directions. Horizontal movement of the graphene, due to both an electrostatic attraction to the STM tip and weak bonding to the substrate, is thought to contribute to the results. (C) 2013 American Vacuum Society.
C1 [Xu, Peng; Barber, Steven D.; Schoelz, J. Kevin; Ackerman, Matthew L.; Qi, Dejun; Thibado, Paul M.] Univ Arkansas, Dept Phys, Fayetteville, AR 72701 USA.
[Wheeler, Virginia D.; Nyakiti, Luke O.; Myers-Ward, Rachael L.; Eddy, Charles R., Jr.; Gaskill, D. Kurt] US Naval Res Lab, Washington, DC 20375 USA.
RP Xu, P (reprint author), Univ Arkansas, Dept Phys, Fayetteville, AR 72701 USA.
EM thibado@uark.edu; gaskill@nrl.navy.mil
RI Barber, Steven/C-2467-2012; Xu, Peng/I-9125-2014
OI Barber, Steven/0000-0002-3191-9453;
FU Office of Naval Research [N00014-10-1-0181]; National Science Foundation
[DMR-0855358]; Office of Naval Research; ASEE
FX P.X. and P.T. gratefully acknowledge the financial support of the Office
of Naval Research under Grant No. N00014-10-1-0181 and the National
Science Foundation under Grant No. DMR-0855358. Work at the U.S. Naval
Research Laboratory was supported by the Office of Naval Research.
L.O.N. gratefully acknowledges postdoctoral fellowship support through
the ASEE.
NR 48
TC 2
Z9 2
U1 2
U2 31
PU A V S AMER INST PHYSICS
PI MELVILLE
PA STE 1 NO 1, 2 HUNTINGTON QUADRANGLE, MELVILLE, NY 11747-4502 USA
SN 1071-1023
J9 J VAC SCI TECHNOL B
JI J. Vac. Sci. Technol. B
PD JUL
PY 2013
VL 31
IS 4
AR 04D101
DI 10.1116/1.4803137
PG 5
WC Engineering, Electrical & Electronic; Nanoscience & Nanotechnology;
Physics, Applied
SC Engineering; Science & Technology - Other Topics; Physics
GA 190YO
UT WOS:000322379800001
ER
PT J
AU Currie, M
Anderson, T
Wheeler, V
Nyakiti, LO
Garces, NY
Myers-Ward, RL
Eddy, CR
Kub, FJ
Gaskill, DK
AF Currie, Marc
Anderson, Travis
Wheeler, Virginia
Nyakiti, Luke O.
Garces, Nelson Y.
Myers-Ward, Rachael L.
Eddy, Charles R., Jr.
Kub, Fritz J.
Gaskill, D. Kurt
TI Mode-locked 2-mu m wavelength fiber laser using a graphene-saturable
absorber
SO OPTICAL ENGINEERING
LA English
DT Article
DE lasers; fiber lasers; nonlinear optics
ID 2 MU-M; HIGH-REPETITION-RATE; SOLID-STATE LASER; FEMTOSECOND LASER;
PULSE GENERATION; SPECTROSCOPY; POWER
AB Soliton-like pulses with a 1984-nm center wavelength are produced from a Tm-doped mode-locked fiber laser. The linear cavity has a graphene saturable absorber mirror at one end and a fiber Bragg grating as the output coupler. The laser operates without dispersion compensation, and the repetition rate was tuned from 20 to 5 MHz by the addition of SMF-28 fiber. The dry transfer process used to place the graphene on a mirror could be extended to any optical substrate. This enables integration of graphene with optics such as an optical window coated with a graphene filter or a graphene-saturable absorber placed directly on a semiconductor laser facet. (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 [Currie, Marc] US Naval Res Lab, Opt Sci Div, Washington, DC 20375 USA.
US Naval Res Lab, Elect Sci & Technol Div, Washington, DC 20375 USA.
RP Currie, M (reprint author), US Naval Res Lab, Opt Sci Div, Washington, DC 20375 USA.
EM marc.currie@nrl.navy.mil
FU Office of Naval Research; ASEE
FX The authors thank Rafael Gattass and Catalin Florea for useful
discussions and borrowed equipment, and Jerry Chappell of Teracomm for
use of the AQ 6375. This work was supported by the Office of Naval
Research. Luke O. Nyakiti gratefully acknowledges support from the ASEE
for post-doctoral fellowship support.
NR 35
TC 3
Z9 4
U1 1
U2 41
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 JUL
PY 2013
VL 52
IS 7
AR 076101
DI 10.1117/1.OE.52.7.076101
PG 5
WC Optics
SC Optics
GA 192IV
UT WOS:000322478600027
ER
PT J
AU Olson, CC
Judd, KP
Chander, K
Smith, AJ
Conant, M
Nichols, JM
Waterman, JR
AF Olson, Colin C.
Judd, K. Peter
Chander, Krishnan
Smith, Andrew J.
Conant, Max
Nichols, Jonathan M.
Waterman, James R.
TI Automated detection of watercraft in short-wave infrared imagery
SO OPTICAL ENGINEERING
LA English
DT Article
DE automated target detection; wavelets; image processing; optimization;
differential evolution
ID JOINT TRANSFORM CORRELATOR; CORRELATION FILTERS; TARGET RECOGNITION;
OBJECT DETECTION; DISCRIMINATION; DESIGN
AB An automated approach for detecting the presence of watercraft in a maritime environment characterized by regions of land, sea, and sky, as well as multiple targets and both water-and land-based clutter, is described. The detector correlates a wavelet model of previously acquired images with those obtained from newly acquired scenes. The resulting detection statistic outperforms two other detectors in terms of probability of detection for a given (low) false alarm rate. It is also shown how the detection statistics associated with different wavelet models can be combined in a way that offers still further improvements in performance. The approach is demonstrated to be effective in finding watercraft in previously collected short-wave infrared imagery. (C) 2013 Society of Photo-Optical Instrumentation Engineers (SPIE)
C1 [Olson, Colin C.] Sotera Def Solut, Crofton, MD USA.
[Judd, K. Peter; Nichols, Jonathan M.; Waterman, James R.] Naval Res Lab, Washington, DC 20375 USA.
[Chander, Krishnan; Smith, Andrew J.] V Syst Inc, Satellite Beach, FL 32937 USA.
[Conant, Max] Naval Res Lab, Sci & Engn Apprentice Program, Washington, DC 20375 USA.
RP Olson, CC (reprint author), Sotera Def Solut, Crofton, MD USA.
EM colin.olson.ctr@nrl.navy.mil
FU Naval Research Laboratory
FX Financial support from the Naval Research Laboratory is gratefully
acknowledged. The authors would like to thank the anonymous reviewers
for their helpful comments.
NR 41
TC 0
Z9 0
U1 3
U2 13
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 JUL
PY 2013
VL 52
IS 7
AR 073109
DI 10.1117/1.OE.52.7.073109
PG 8
WC Optics
SC Optics
GA 192IV
UT WOS:000322478600012
ER
PT J
AU Jordan, SA
AF Jordan, Stephen A.
TI A skin friction model for axisymmetric turbulent boundary layers along
long thin circular cylinders
SO PHYSICS OF FLUIDS
LA English
DT Article
ID LARGE-EDDY SIMULATIONS; TRANSVERSE CURVATURE; WALL-PRESSURE; AXIAL-FLOW;
A-PRIORI; VELOCITY
AB Only a few engineering design models are presently available that adequately depict the axisymmetric skin friction (C-f) maturity along long thin turbulent cylinders. This deficit rests essentially on the experimental and numerical difficulties of measuring (or computing) the spatial evolution of the thin cylinder turbulence. Consequently, the present axisymmetric C-f models have questionable accuracy. Herein, we attempt to formulate a more robust C-f model that owns acceptable error. The formulation is founded on triple integration of the governing equation system that represents a thin cylinder turbulent boundary layer (TBL) at statistical steady-state in appropriate dimensionless units. The final model requires only the radius-based Reynolds number (Re-a) and transverse curvature (delta/a) as input parameters. We tuned the accompanying coefficients empirically via an expanded statistical database (over 60 data points) that house new C-f values from large-eddy simulations (LES). The LES computations employed a turbulence inflow generation procedure that permits spatial resolution of the TBL at low-high Reynolds numbers and transverse curvatures. Compared to the new skin friction database, the C-f model revealed averaged predictive errors under 5% with a 3.5% standard deviation. Apart from owning higher values than the flat plate TBL, the most distinguishing characteristic of the axisymmetric skin friction is its rising levels when the boundary layer thickness exceeds the cylinder radius. All C-f levels diminish with increasing Reynolds number. These unique features differentiate the axisymmetric TBL along thin cylinders as a separate canonical flow when compared to the turbulent wall shear-layers of channels, pipes, and planar-type geometries.
C1 Naval Undersea Warfare Ctr, Newport, RI 02841 USA.
RP Jordan, SA (reprint author), Naval Undersea Warfare Ctr, Newport, RI 02841 USA.
EM stephen.jordan@navy.mil
FU Office of Naval Research (ONR) [N0001412AF00002]; In-House Laboratory
Independent Research Program at the Naval Undersea Warfare Center
Division Newport
FX The author gratefully acknowledges the support of the Office of Naval
Research (ONR) (Dr. Ronald D. Joslin, Program Officer), Contract No.
N0001412AF00002, and the In-House Laboratory Independent Research
Program (Dr. Anthony A. Ruffa, Program Coordinator) at the Naval
Undersea Warfare Center Division Newport.
NR 36
TC 6
Z9 6
U1 1
U2 13
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 1070-6631
J9 PHYS FLUIDS
JI Phys. Fluids
PD JUL
PY 2013
VL 25
IS 7
AR 075104
DI 10.1063/1.4813810
PG 19
WC Mechanics; Physics, Fluids & Plasmas
SC Mechanics; Physics
GA 192XL
UT WOS:000322521100044
ER
PT J
AU Metcalf, TH
Liu, X
AF Metcalf, Thomas H.
Liu, Xiao
TI An ultra-high Q silicon compound cantilever resonator for Young's
modulus measurements
SO REVIEW OF SCIENTIFIC INSTRUMENTS
LA English
DT Article
ID NITRIDE THIN-FILMS; Q-MECHANICAL OSCILLATOR; INTERNAL-FRICTION;
TEMPERATURE; DISSIPATION; GERMANIUM; SYSTEMS; MODES
AB We describe the design of ultra-high Q mechanical cantilever resonators, fabricated from single-crystal silicon wafers. The mechanical resonance mode at f approximate to 8.5 kHz achieves a background damping of Q(-1) less than or similar to 2 x 10(-8) at temperatures below 30 K, which is equal to that of a successful silicon torsional resonator with which the cantilever resonator shares several design elements. The new resonator can be used for accurate measurements of the Young's modulus and internal friction of thin films. It is compatible with both the mounting apparatus and measurement electronics of the torsional resonator, and the two resonators together can be used to provide a complete description of the elastic properties of isotropic thin films.
C1 [Metcalf, Thomas H.; Liu, Xiao] Naval Res Lab, Washington, DC 20375 USA.
RP Metcalf, TH (reprint author), Naval Res Lab, Washington, DC 20375 USA.
EM tom.metcalf@nrl.navy.mil
FU Office of Naval Research
FX We thank and acknowledge D. R. Queen for deposition of the a-Si film and
B. R. Ilic for deposition of the SiN film. This work is funded by the
Office of Naval Research.
NR 45
TC 5
Z9 5
U1 2
U2 17
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0034-6748
EI 1089-7623
J9 REV SCI INSTRUM
JI Rev. Sci. Instrum.
PD JUL
PY 2013
VL 84
IS 7
AR 075001
DI 10.1063/1.4812268
PG 8
WC Instruments & Instrumentation; Physics, Applied
SC Instruments & Instrumentation; Physics
GA 194AI
UT WOS:000322602200057
PM 23902093
ER
PT J
AU Obenauer, PJ
Abdel-Dayem, MS
Stoops, CA
Villinski, JT
Tageldin, R
Fahmy, NT
Diclaro, JW
Bolay, F
AF Obenauer, P. J.
Abdel-Dayem, M. S.
Stoops, C. A.
Villinski, J. T.
Tageldin, R.
Fahmy, N. T.
Diclaro, J. W., II
Bolay, F.
TI Field Responses of Anopheles gambiae Complex (Diptera: Culicidae) in
Liberia using Yeast-Generated Carbon Dioxide and Synthetic Lure-Baited
Light Traps
SO JOURNAL OF MEDICAL ENTOMOLOGY
LA English
DT Article
DE mosquito; UV; light-emitting diode; Malaria; S-form
ID MM-X TRAPS; WESTERN KENYA; IDENTIFICATION; ATTRACTION; ARABIENSIS;
MOSQUITOES; ODOR
AB Malaria infection is a serious public health problem throughout Liberia, but vector surveillance is limited or nonexistent in remote regions of the country. To better understand the spatial and temporal distribution of malaria vectors in Liberia and to support vector and malaria activities of the Liberian Ministry of Health, a study was conducted to determine the efficacy of light traps baited with a synthetic lure and CO 2 for capturing Anopheles gambiae sensu lato (Giles). Traps with a ultraviolet, light-emitting diode, and incandescent lights baited with a synthetic skin lure and CO 2 combinations were evaluated at four field sites in three counties of Liberia for five consecutive nights every 8 wk during 2011. In total, 4,788 mosquitoes representing 56 species from nine genera were collected throughout the 30-wk study; An. gambiae s. l. comprised 32% and of the 148 An. gambiae s. s. collected, 85% were of the S form. A greater percentage of An. gambiae s. l. were collected in ultraviolet traps baited with a synthetic lure and CO2 compared with any other trap configuration. The influence of trap configuration on conclusions from surveillance efforts, specifically with regards to An. gambiae is discussed.
C1 [Obenauer, P. J.] USN, Entomol Ctr Excellence, Jacksonville, FL 32212 USA.
[Abdel-Dayem, M. S.] King Saud Univ, Coll Food & Agr Sci, Riyadh 11451, Saudi Arabia.
[Stoops, C. A.] USDA, Ctr Med & Vet Entomol, Gainesville, FL 32608 USA.
[Villinski, J. T.; Tageldin, R.; Fahmy, N. T.; Diclaro, J. W., II] US Naval Med Res Unit 3, Cairo 09835, FPO AE, Egypt.
[Bolay, F.] Liberian Inst Biomed Res, Monrovia, Liberia.
RP Obenauer, PJ (reprint author), USN, Entomol Ctr Excellence, Box 43,Bldg 937, Jacksonville, FL 32212 USA.
EM peter.obenauer@med.navy.mil
OI Abdel-Dayem, Mahmoud/0000-0002-6276-1740
FU Department of Defense's Global Emerging Infections System (GEIS) work
unit [C0436-11-N3, C0549-12-N3]
FX We thank Maria Badra for her assistance with logistical support of all
personnel and materials pertaining to this study. We thank Robyn
Murrillo, Tony Hughes, Ryan Larson, Jesse Evans, Daniel Hanaczewski,
Hanafi Hanafi, Maria Morales, Noha Watany, El-Shaimma Nour El-Din, and
Emad Fawaz for assistance with collecting, processing, and identifying
mosquito specimens. We are indebted to Jimmy Pitzer and Eric Hoffman who
provided helpful suggestions and reviews of this manuscript. We are
grateful to the LIBR support staff for assisting and executing this
study. This work was funded by the Department of Defense's Global
Emerging Infections System (GEIS) work unit numbers C0436-11-N3 and
C0549-12-N3. 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, nor the U.S.
Government.
NR 32
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U1 1
U2 11
PU OXFORD UNIV PRESS INC
PI CARY
PA JOURNALS DEPT, 2001 EVANS RD, CARY, NC 27513 USA
SN 0022-2585
EI 1938-2928
J9 J MED ENTOMOL
JI J. Med. Entomol.
PD JUL
PY 2013
VL 50
IS 4
BP 863
EP 870
DI 10.1603/ME12174
PG 8
WC Entomology; Veterinary Sciences
SC Entomology; Veterinary Sciences
GA 184NI
UT WOS:000321897300024
PM 23926786
ER
PT J
AU Hayward, TJ
Oba, RM
AF Hayward, Thomas J.
Oba, Roger M.
TI Empirical and quadrature approximation of acoustic field and array
response probability density functions
SO JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
LA English
DT Article
ID ENVIRONMENTAL UNCERTAINTY; PROPAGATION
AB Numerical methods are presented for approximating the probability density functions (pdf's) of acoustic fields and receiver-array responses induced by a given joint pdf of a set of acoustic environmental parameters. An approximation to the characteristic function of the random acoustic field (the inverse Fourier transform of the field pdf) is first obtained either by construction of the empirical characteristic function (ECF) from a random sample of the acoustic parameters, or by application of generalized Gaussian quadrature to approximate the integral defining the characteristic function. The Fourier transform is then applied to obtain an approximation of the pdf by a continuous function of the field variables. Application of both the ECF and generalized Gaussian quadrature is demonstrated in an example of a shallow-water ocean waveguide with two-dimensional uncertainty of sound speed and attenuation coefficient in the ocean bottom. Both approximations lead to a smoother estimate of the field pdf than that provided by a histogram, with generalized Gaussian quadrature providing a smoother estimate at the tails of the pdf. Potential applications to acoustic system performance quantification and to nonparametric acoustic signal processing are discussed.
C1 [Hayward, Thomas J.; Oba, Roger M.] Naval Res Lab, Washington, DC 20375 USA.
RP Hayward, TJ (reprint author), Naval Res Lab, Washington, DC 20375 USA.
FU Office of Naval Research
FX This work was supported by the Office of Naval Research.
NR 22
TC 0
Z9 0
U1 0
U2 1
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 JUL
PY 2013
VL 134
IS 1
BP 29
EP 39
DI 10.1121/1.4809652
PN 1
PG 11
WC Acoustics; Audiology & Speech-Language Pathology
SC Acoustics; Audiology & Speech-Language Pathology
GA 184QQ
UT WOS:000321908500025
PM 23862782
ER
PT J
AU Metzler, AM
Siegmann, WL
Collins, MD
Collis, JM
AF Metzler, Adam M.
Siegmann, William L.
Collins, Michael D.
Collis, Jon M.
TI Two parabolic equations for propagation in layered poro-elastic media
SO JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
LA English
DT Article
ID SINGLE-SCATTERING CORRECTION; WAVE-PROPAGATION; ACOUSTIC PROPAGATION;
SLOPING INTERFACES; RANGE; OCEAN; REFLECTION; STONELEY; RAYLEIGH; BOTTOM
AB Parabolic equation methods for fluid and elastic media are extended to layered poro-elastic media, including some shallow-water sediments. A previous parabolic equation solution for one model of range-independent poro-elastic media [Collins et al., J. Acoust. Soc. Am. 98, 1645-1656 (1995)] does not produce accurate solutions for environments with multiple poro-elastic layers. First, a dependent-variable formulation for parabolic equations used with elastic media is generalized to layered poro-elastic media. An improvement in accuracy is obtained using a second dependent-variable formulation that conserves dependent variables across interfaces between horizontally stratified layers. Furthermore, this formulation expresses conditions at interfaces using no depth derivatives higher than first order. This feature should aid in treating range dependence because convenient matching across interfaces is possible with discretized derivatives of first order in contrast to second order. (C) 2013 Acoustical Society of America.
C1 [Metzler, Adam M.] Univ Texas Austin, Appl Res Labs, Austin, TX 78713 USA.
[Siegmann, William L.] Rensselaer Polytech Inst, Troy, NY 12180 USA.
[Collins, Michael D.] Naval Res Lab, Stennis Space Ctr, MS 39529 USA.
[Collis, Jon M.] Colorado Sch Mines, Golden, CO 80401 USA.
RP Metzler, AM (reprint author), Univ Texas Austin, Appl Res Labs, Austin, TX 78713 USA.
EM ametzler@arlut.utexas.edu
FU Office of Naval Research; Ocean Acoustics Graduate Traineeship Award;
Applied Research Laboratories at The University of Texas at Austin
FX Work supported by the Office of Naval Research, and for the first author
by an Ocean Acoustics Graduate Traineeship Award and through the
Internal Research and Development program of the Applied Research
Laboratories at The University of Texas at Austin.
NR 35
TC 1
Z9 1
U1 1
U2 3
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 JUL
PY 2013
VL 134
IS 1
BP 246
EP 256
DI 10.1121/1.4807826
PN 1
PG 11
WC Acoustics; Audiology & Speech-Language Pathology
SC Acoustics; Audiology & Speech-Language Pathology
GA 184QQ
UT WOS:000321908500045
PM 23862802
ER
PT J
AU Fu, HL
Chu, PC
Han, GJ
He, ZJ
Li, W
Zhang, XF
AF Fu Hongli
Chu, Peter C.
Han Guijun
He Zhongjie
Li Wei
Zhang Xuefeng
TI Improvement of short-term forecasting in the northwest Pacific through
assimilating Argo data into initial fields
SO ACTA OCEANOLOGICA SINICA
LA English
DT Article
DE data assimilation; Argo data; western North Pacific; ocean prediction
ID CHINA; SEAS
AB The impact of assimilating Argo data into an initial field on the short-term forecasting accuracy of temperature and salinity is quantitatively estimated by using a forecasting system of the western North Pacific, on the base of the Princeton ocean model with a generalized coordinate system (POMgcs). This system uses a sequential multigrid three-dimensional variational (3DVAR) analysis scheme to assimilate observation data. Two numerical experiments were conducted with and without Argo temperature and salinity profile data besides conventional temperature and salinity profile data and sea surface height anomaly (SSHa) and sea surface temperature (SST) in the process of assimilating data into the initial fields. The forecast errors are estimated by using independent temperature and salinity profiles during the forecasting period, including the vertical distributions of the horizontally averaged root mean square errors (H-RMSEs) and the horizontal distributions of the vertically averaged mean errors (MEs) and the temporal variation of spatially averaged root mean square errors (S-RMSEs). Comparison between the two experiments shows that the assimilation of Argo data significantly improves the forecast accuracy, with 24% reduction of H-RMSE maximum for the temperature, and the salinity forecasts are improved more obviously, averagely dropping of 50% for H-RMSEs in depth shallower than 300 m. Such improvement is caused by relatively uniform sampling of both temperature and salinity from the Argo drifters in time and space.
C1 [Fu Hongli; Han Guijun; He Zhongjie; Li Wei; Zhang Xuefeng] State Ocean Adm, Natl Marine Data & Informat Serv, Key Lab State Ocean Adm Marine Environm Informat, Tianjin 300171, Peoples R China.
[Chu, Peter C.] Naval Postgrad Sch, Naval Ocean Anal & Predict Lab, Monterey, CA USA.
RP Han, GJ (reprint author), State Ocean Adm, Natl Marine Data & Informat Serv, Key Lab State Ocean Adm Marine Environm Informat, Tianjin 300171, Peoples R China.
EM gjhan@mail.nmdis.gov.cn
FU National Natural Science Foundation of China [41030854, 41106005,
41176003, 41206178]; National Science and Technology Support Program of
China [2011BAC03B02-01-04]
FX Foundation item: The National Natural Science Foundation of China under
contract Nos 41030854, 41106005, 41176003, and 41206178; the National
Science and Technology Support Program of China under contract No.
2011BAC03B02-01-04.
NR 18
TC 1
Z9 1
U1 1
U2 4
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0253-505X
J9 ACTA OCEANOL SIN
JI Acta Oceanol. Sin.
PD JUL
PY 2013
VL 32
IS 7
BP 57
EP 65
DI 10.1007/s13131-013-0332-2
PG 9
WC Oceanography
SC Oceanography
GA 183IL
UT WOS:000321808000008
ER
PT J
AU Ackermann, M
Ajello, M
Albert, A
Allafort, A
Antolini, E
Baldini, L
Ballet, J
Barbiellini, G
Bastieri, D
Bechtol, K
Bellazzini, R
Blandford, RD
Bloom, ED
Bonamente, E
Bottacini, E
Bouvier, A
Brandt, TJ
Bregeon, J
Brigida, M
Bruel, P
Buehler, R
Buson, S
Caliandro, GA
Cameron, RA
Caraveo, PA
Cavazzuti, E
Cecchi, C
Charles, E
Chekhtman, A
Cheung, CC
Chiang, J
Chiaro, G
Ciprini, S
Claus, R
Cohen-Tanugi, J
Conrad, J
Cutini, S
Dalton, M
D'Ammando, F
de Angelis, A
de Palma, F
Dermer, CD
Di Venere, L
Drell, PS
Drlica-Wagner, A
Favuzzi, C
Fegan, SJ
Ferrara, EC
Focke, WB
Franckowiak, A
Fukazawa, Y
Funk, S
Fusco, P
Gargano, F
Gasparrini, D
Germani, S
Giglietto, N
Giordano, F
Giroletti, M
Glanzman, T
Godfrey, G
Grenier, IA
Grondin, MH
Grove, JE
Guiriec, S
Hadasch, D
Hanabata, Y
Harding, AK
Hayashida, M
Hays, E
Hewitt, J
Hill, AB
Horan, D
Hou, X
Hughes, RE
Inoue, Y
Jackson, MS
Jogler, T
Johannesson, G
Johnson, WN
Kamae, T
Kataoka, J
Kawano, T
Knoedlseder, J
Kuss, M
Lande, J
Larsson, S
Latronico, L
Lemoine-Goumard, M
Longo, F
Loparco, F
Lott, B
Lovellette, MN
Lubrano, P
Mayer, M
Mazziotta, MN
McEnery, JE
Michelson, PF
Mitthumsiri, W
Mizuno, T
Monte, C
Monzani, ME
Morselli, A
Moskalenko, IV
Murgia, S
Nemmen, R
Nuss, E
Ohsugi, T
Okumura, A
Omodei, N
Orienti, M
Orlando, E
Ormes, JF
Paneque, D
Panetta, JH
Perkins, JS
Pesce-Rollins, M
Piron, F
Pivato, G
Porter, TA
Raino, S
Rando, R
Razzano, M
Reimer, A
Reimer, O
Romoli, C
Roth, M
Sanchez-Conde, M
Scargle, JD
Schulz, A
Sgro, C
Siskind, EJ
Spandre, G
Spinelli, P
Suson, DJ
Takahashi, H
Takeuchi, Y
Thayer, JG
Thayer, JB
Thompson, DJ
Tibaldo, L
Tinivella, M
Torres, DF
Tosti, G
Troja, E
Tronconi, V
Usher, TL
Vandenbroucke, J
Vasileiou, V
Vianello, G
Vitale, V
Winer, BL
Wood, KS
Wood, M
Yang, Z
AF Ackermann, M.
Ajello, M.
Albert, A.
Allafort, A.
Antolini, E.
Baldini, L.
Ballet, J.
Barbiellini, G.
Bastieri, D.
Bechtol, K.
Bellazzini, R.
Blandford, R. D.
Bloom, E. D.
Bonamente, E.
Bottacini, E.
Bouvier, A.
Brandt, T. J.
Bregeon, J.
Brigida, M.
Bruel, P.
Buehler, R.
Buson, S.
Caliandro, G. A.
Cameron, R. A.
Caraveo, P. A.
Cavazzuti, E.
Cecchi, C.
Charles, E.
Chekhtman, A.
Cheung, C. C.
Chiang, J.
Chiaro, G.
Ciprini, S.
Claus, R.
Cohen-Tanugi, J.
Conrad, J.
Cutini, S.
Dalton, M.
D'Ammando, F.
de Angelis, A.
de Palma, F.
Dermer, C. D.
Di Venere, L.
Drell, P. S.
Drlica-Wagner, A.
Favuzzi, C.
Fegan, S. J.
Ferrara, E. C.
Focke, W. B.
Franckowiak, A.
Fukazawa, Y.
Funk, S.
Fusco, P.
Gargano, F.
Gasparrini, D.
Germani, S.
Giglietto, N.
Giordano, F.
Giroletti, M.
Glanzman, T.
Godfrey, G.
Grenier, I. A.
Grondin, M-H.
Grove, J. E.
Guiriec, S.
Hadasch, D.
Hanabata, Y.
Harding, A. K.
Hayashida, M.
Hays, E.
Hewitt, J.
Hill, A. B.
Horan, D.
Hou, X.
Hughes, R. E.
Inoue, Y.
Jackson, M. S.
Jogler, T.
Johannesson, G.
Johnson, W. N.
Kamae, T.
Kataoka, J.
Kawano, T.
Knoedlseder, J.
Kuss, M.
Lande, J.
Larsson, S.
Latronico, L.
Lemoine-Goumard, M.
Longo, F.
Loparco, F.
Lott, B.
Lovellette, M. N.
Lubrano, P.
Mayer, M.
Mazziotta, M. N.
McEnery, J. E.
Michelson, P. F.
Mitthumsiri, W.
Mizuno, T.
Monte, C.
Monzani, M. E.
Morselli, A.
Moskalenko, I. V.
Murgia, S.
Nemmen, R.
Nuss, E.
Ohsugi, T.
Okumura, A.
Omodei, N.
Orienti, M.
Orlando, E.
Ormes, J. F.
Paneque, D.
Panetta, J. H.
Perkins, J. S.
Pesce-Rollins, M.
Piron, F.
Pivato, G.
Porter, T. A.
Raino, S.
Rando, R.
Razzano, M.
Reimer, A.
Reimer, O.
Romoli, C.
Roth, M.
Sanchez-Conde, M.
Scargle, J. D.
Schulz, A.
Sgro, C.
Siskind, E. J.
Spandre, G.
Spinelli, P.
Suson, D. J.
Takahashi, H.
Takeuchi, Y.
Thayer, J. G.
Thayer, J. B.
Thompson, D. J.
Tibaldo, L.
Tinivella, M.
Torres, D. F.
Tosti, G.
Troja, E.
Tronconi, V.
Usher, T. L.
Vandenbroucke, J.
Vasileiou, V.
Vianello, G.
Vitale, V.
Winer, B. L.
Wood, K. S.
Wood, M.
Yang, Z.
TI THE FERMI ALL-SKY VARIABILITY ANALYSIS: A LIST OF FLARING GAMMA-RAY
SOURCES AND THE SEARCH FOR TRANSIENTS IN OUR GALAXY
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE binaries: general; BL Lacertae objects: general; catalogs; galaxies:
active; stars: flare; surveys
ID LARGE-AREA TELESCOPE; ACTIVE GALACTIC NUCLEI; ETA-CARINAE; CRAB-NEBULA;
SOURCE CATALOG; LS 5039; EMISSION; BINARY; DISCOVERY; HESS
AB In this paper, we present the Fermi All-sky Variability Analysis (FAVA), a tool to systematically study the variability of the gamma-ray sky measured by the Large Area Telescope on board the Fermi Gamma-ray Space Telescope. For each direction on the sky, FAVA compares the number of gamma-rays observed in a given time window to the number of gamma-rays expected for the average emission detected from that direction. This method is used in weekly time intervals to derive a list of 215 flaring gamma-ray sources. We proceed to discuss the 27 sources found at Galactic latitudes smaller than 10 degrees and show that, despite their low latitudes, most of them are likely of extragalactic origin.
C1 [Ackermann, M.; Buehler, R.; Mayer, M.; Schulz, A.] Deutsch Elektronen Synchrotron DESY, D-15738 Zeuthen, Germany.
[Ajello, M.] Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA.
[Albert, A.; Hughes, R. E.; Winer, B. L.] Ohio State Univ, Dept Phys, Ctr Cosmol & Astro Particle Phys, Columbus, OH 43210 USA.
[Allafort, A.; Bechtol, K.; Blandford, R. D.; Bloom, E. D.; Bottacini, E.; Cameron, R. A.; Charles, E.; Chiang, J.; Claus, R.; Di Venere, L.; Drell, P. S.; Drlica-Wagner, A.; Focke, W. B.; Franckowiak, A.; Funk, S.; Glanzman, T.; Godfrey, G.; Hayashida, M.; Hill, A. B.; Inoue, Y.; Jogler, T.; Kamae, T.; Lande, J.; Michelson, P. F.; Mitthumsiri, W.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Okumura, A.; Omodei, N.; Orlando, E.; Paneque, D.; Panetta, J. H.; Porter, T. A.; Reimer, A.; Reimer, O.; Sanchez-Conde, M.; Thayer, J. G.; Thayer, J. B.; Tibaldo, L.; Usher, T. L.; Vandenbroucke, J.; Vianello, G.; Wood, M.] Stanford Univ, Kavli Inst Particle Astrophys & Cosmol, WW Hansen Expt Phys Lab, Dept Phys, Stanford, CA 94305 USA.
[Allafort, A.; Bechtol, K.; Blandford, R. D.; Bloom, E. D.; Bottacini, E.; Cameron, R. A.; Charles, E.; Chiang, J.; Claus, R.; Di Venere, L.; Drell, P. S.; Drlica-Wagner, A.; Focke, W. B.; Franckowiak, A.; Funk, S.; Glanzman, T.; Godfrey, G.; Hayashida, M.; Hill, A. B.; Inoue, Y.; Jogler, T.; Kamae, T.; Lande, J.; Michelson, P. F.; Mitthumsiri, W.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Okumura, A.; Omodei, N.; Orlando, E.; Paneque, D.; Panetta, J. H.; Porter, T. A.; Reimer, A.; Reimer, O.; Sanchez-Conde, M.; Thayer, J. G.; Thayer, J. B.; Tibaldo, L.; Usher, T. L.; Vandenbroucke, J.; Vianello, G.; Wood, M.] Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA.
[Antolini, E.; Bonamente, E.; Cecchi, C.; Germani, S.; Lubrano, P.; Tosti, G.] Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy.
[Antolini, E.; Bonamente, E.; Cecchi, C.; Germani, S.; Lubrano, P.; Tosti, G.] Ist Nazl Fis Nucl, Sez Perugia, I-06123 Perugia, Italy.
[Baldini, L.] Univ Pisa, I-56127 Pisa, Italy.
[Baldini, L.] Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy.
[Ballet, J.; Grenier, I. A.] Univ Paris Diderot, Lab AIM, CEA IRFU, CNRS,Serv Astrophys,CEA Saclay, F-91191 Gif Sur Yvette, France.
[Barbiellini, G.; Longo, F.] Ist Nazl Fis Nucl, Sez Trieste, I-34127 Trieste, Italy.
[Barbiellini, G.; Longo, F.] Univ Trieste, Dipartimento Fis, I-34127 Trieste, Italy.
[Bastieri, D.; Buson, S.; Rando, R.] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy.
[Bastieri, D.; Buson, S.; Chiaro, G.; Pivato, G.; Rando, R.; Romoli, C.; Tronconi, V.] Univ Padua, Dipartimento Fis & Astron G Galilei, I-35131 Padua, Italy.
[Bellazzini, R.; Bregeon, J.; Kuss, M.; Pesce-Rollins, M.; Razzano, M.; Sgro, C.; Spandre, G.; Tinivella, M.] Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy.
[Bouvier, A.; Razzano, M.] Univ Calif Santa Cruz, Dept Phys, Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA.
[Bouvier, A.; Razzano, M.] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Giglietto, N.; Giordano, F.; Loparco, F.; Monte, C.; Raino, S.; Spinelli, P.] Univ Bari, Dipartimento Fis M Merlin, I-70126 Bari, Italy.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Giglietto, N.; Giordano, F.; Loparco, F.; Monte, C.; Raino, S.; Spinelli, P.] Politecn Bari, I-70126 Bari, Italy.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Gargano, F.; Giglietto, N.; Giordano, F.; Loparco, F.; Mazziotta, M. N.; Monte, C.; Raino, S.; Spinelli, P.] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy.
[Bruel, P.; Fegan, S. J.; Horan, D.] Ecole Polytech, CNRS, Lab Leprince Ringuet, IN2P3, F-91128 Palaiseau, France.
[Caliandro, G. A.; Hadasch, D.; Torres, D. F.] Inst Ciencies Espai IEEE CSIC, E-08193 Barcelona, Spain.
[Caraveo, P. A.] INAF Ist Astrofis Spaziale & Fis Cosm, I-20133 Milan, Italy.
[Cavazzuti, E.; Ciprini, S.; Cutini, S.; Gasparrini, D.] Agenzia Spaziale Italiana ASI Sci Data Ctr, I-00044 Frascati, Roma, Italy.
[Chekhtman, A.] George Mason Univ, Ctr Earth Observing & Space Res, Coll Sci, Fairfax, VA 22030 USA.
[Cheung, C. C.; Dermer, C. D.; Grove, J. E.; Johnson, W. N.; Lovellette, M. N.; Wood, K. S.] Naval Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Ciprini, S.; Cutini, S.; Gasparrini, D.] Osserv Astron Roma, Ist Nazl Astrofis, I-00040 Monte Porzio Catone, Roma, Italy.
[Cohen-Tanugi, J.; Nuss, E.; Piron, F.; Vasileiou, V.] Univ Montpellier 2, Lab Univers & Particules Montpellier, CNRS IN2P3, Montpellier, France.
[Conrad, J.; Larsson, S.; Yang, Z.] Stockholm Univ, Dept Phys, SE-10691 Stockholm, Sweden.
[Conrad, J.; Jackson, M. S.; Larsson, S.; Yang, Z.] Oskar Klein Ctr Cosmoparticle Phys, SE-10691 Stockholm, Sweden.
[Conrad, J.] Royal Swedish Acad Sci, SE-10405 Stockholm, Sweden.
[Dalton, M.; Hou, X.; Lemoine-Goumard, M.; Lott, B.] Univ Bordeaux 1, CNRS IN2p3, Ctr Etud Nucl Bordeaux Gradignan, F-33175 Gradignan, France.
[D'Ammando, F.; Giroletti, M.; Orienti, M.] INAF Ist Radioastron, I-40129 Bologna, Italy.
[de Angelis, A.] Univ Udine, Dipartimento Fis, I-33100 Udine, Italy.
[de Angelis, A.] Grp Collegato Udine, Ist Nazl Fis Nucl, I-33100 Udine, Italy.
[Fukazawa, Y.; Hanabata, Y.; Kawano, T.; Takahashi, H.] Hiroshima Univ, Dept Phys Sci, Hiroshima 7398526, Japan.
[Grondin, M-H.; Knoedlseder, J.] IRAP, CNRS, F-31028 Toulouse 4, France.
[Grondin, M-H.; Knoedlseder, J.] Univ Toulouse, GAHEC, UPS OMP, IRAP, Toulouse, France.
[Hayashida, M.] Kyoto Univ, Grad Sch Sci, Dept Astron, Sakyo Ku, Kyoto 6068502, Japan.
[Hill, A. B.] Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England.
[Jackson, M. S.] Royal Inst Technol KTH, Dept Phys, SE-10691 Stockholm, Sweden.
[Johannesson, G.] Univ Iceland, Inst Sci, IS-107 Reykjavik, Iceland.
[Kataoka, J.; Takeuchi, Y.] Waseda Univ, Res Inst Sci & Engn, Shinjuku Ku, Tokyo 1698555, Japan.
[Larsson, S.] Stockholm Univ, Dept Astron, SE-10691 Stockholm, Sweden.
[Latronico, L.] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy.
[McEnery, J. E.] Univ Maryland, Dept Phys, College Pk, MD 20742 USA.
[McEnery, J. E.] Univ Maryland, Dept Astron, College Pk, MD 20742 USA.
[Mizuno, T.; Ohsugi, T.] Hiroshima Univ, Hiroshima Astrophys Sci Ctr, Hiroshima 7398526, Japan.
[Morselli, A.; Vitale, V.] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, I-00133 Rome, Italy.
[Okumura, A.] Nagoya Univ, Solar Terr Environm Lab, Nagoya, Aichi 4648601, Japan.
[Ormes, J. F.] Univ Denver, Dept Phys & Astron, Denver, CO 80208 USA.
[Paneque, D.] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany.
[Perkins, J. S.] Univ Maryland Baltimore Cty, Baltimore, MD 21250 USA.
[Perkins, J. S.] Univ Maryland Baltimore Cty, Ctr Space Sci & Technol, Baltimore, MD 21250 USA.
[Perkins, J. S.] CRESST, Greenbelt, MD 20771 USA.
[Perkins, J. S.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Perkins, J. S.] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA.
[Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria.
[Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria.
[Scargle, J. D.] Univ Washington, Dept Phys, Seattle, WA 98195 USA.
[Siskind, E. J.] NYCB Real Time Comp Inc, Lattingtown, NY 11560 USA.
[Suson, D. J.] Purdue Univ Calumet, Dept Chem & Phys, Hammond, IN 46323 USA.
[Torres, D. F.] Inst Catalana Recerca & Estudis Avancats ICREA, Barcelona, Spain.
[Vianello, G.] CIFS, I-10133 Turin, Italy.
[Vitale, V.] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy.
[Chekhtman, A.] Naval Res Lab, Washington, DC 20375 USA.
[Conrad, J.] Royal Swedish Acad Sci, Stockholm, Sweden.
[Troja, E.] NASA, Postdoctoral Program, Washington, DC USA.
RP Ackermann, M (reprint author), Deutsch Elektronen Synchrotron DESY, D-15738 Zeuthen, Germany.
EM allafort@stanford.edu; rolf.buehler@desy.de
RI Torres, Diego/O-9422-2016; Orlando, E/R-5594-2016; Di Venere,
Leonardo/C-7619-2017; Rando, Riccardo/M-7179-2013; Mazziotta, Mario
/O-8867-2015; Sgro, Carmelo/K-3395-2016; Hays, Elizabeth/D-3257-2012;
Reimer, Olaf/A-3117-2013; Morselli, Aldo/G-6769-2011; Nemmen,
Rodrigo/O-6841-2014; Funk, Stefan/B-7629-2015; Johannesson,
Gudlaugur/O-8741-2015; Loparco, Francesco/O-8847-2015; Gargano,
Fabio/O-8934-2015; giglietto, nicola/I-8951-2012; Moskalenko,
Igor/A-1301-2007
OI Pesce-Rollins, Melissa/0000-0003-1790-8018; orienti,
monica/0000-0003-4470-7094; Giroletti, Marcello/0000-0002-8657-8852;
Gasparrini, Dario/0000-0002-5064-9495; Baldini,
Luca/0000-0002-9785-7726; Torres, Diego/0000-0002-1522-9065; Di Venere,
Leonardo/0000-0003-0703-824X; Inoue, Yoshiyuki/0000-0002-7272-1136;
Giordano, Francesco/0000-0002-8651-2394; De Angelis,
Alessandro/0000-0002-3288-2517; Caraveo, Patrizia/0000-0003-2478-8018;
Sgro', Carmelo/0000-0001-5676-6214; SPINELLI, Paolo/0000-0001-6688-8864;
Rando, Riccardo/0000-0001-6992-818X; Hill, Adam/0000-0003-3470-4834;
Bastieri, Denis/0000-0002-6954-8862; Omodei, Nicola/0000-0002-5448-7577;
Mazziotta, Mario /0000-0001-9325-4672; Reimer, Olaf/0000-0001-6953-1385;
Morselli, Aldo/0000-0002-7704-9553; Funk, Stefan/0000-0002-2012-0080;
Johannesson, Gudlaugur/0000-0003-1458-7036; Loparco,
Francesco/0000-0002-1173-5673; Gargano, Fabio/0000-0002-5055-6395;
giglietto, nicola/0000-0002-9021-2888; Moskalenko,
Igor/0000-0001-6141-458X
FU Istituto Nazionale di Astrofisica in Italy; Centre National d'Etudes
Spatiales in France
FX Rolf Buhler acknowledges generous support from the Fermi guest
investigator program. 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 47
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U1 0
U2 18
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 JUL 1
PY 2013
VL 771
IS 1
AR 57
DI 10.1088/0004-637X/771/1/57
PG 12
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 176AD
UT WOS:000321274200057
ER
PT J
AU Hillger, D
Kopp, T
Lee, T
Lindsey, D
Seaman, C
Miller, S
Solbrig, J
Kidder, S
Bachmeier, S
Jasmin, T
Rink, T
AF Hillger, Donald
Kopp, Thomas
Lee, Thomas
Lindsey, Daniel
Seaman, Curtis
Miller, Steven
Solbrig, Jeremy
Kidder, Stanley
Bachmeier, Scott
Jasmin, Tommy
Rink, Tom
TI First-Light Imagery from Suomi NPP VIIRS
SO BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY
LA English
DT Article
AB The Suomi National Polar-Orbiting Partnership (NPP) satellite was launched on 28 October 2011, heralding the next generation of operational U.S. polar-orbiting satellites. It carries the Visible- Infrared Imaging Radiometer Suite (VIIRS), a 22-band visible/infrared sensor that combines many of the best aspects of the NOAA Advanced Very High Resolution Radiometer (AVHRR), the Defense Meteorological Satellite Program (DMSP) Operational Linescan System (OLS), and the National Aeronautics and Space Administration (NASA) Moderate Resolution Imaging Spectroradiometer (MODIS) sensors. VIIRS has nearly all the capabilities of MODIS, but offers a wider swath width (3,000 versus 2,330 km) and much higher spatial resolution at swath edge. VIIRS also has a day/night band (DNB) that is sensitive to very low levels of visible light at night such as those produced by moonlight reflecting off low clouds, fog, dust, ash plumes, and snow cover. In addition, VIIRS detects light emissions from cities, ships, oil flares, and lightning flashes. NPP crosses the equator at about 0130 and 1330 local time, with VIIRS covering the entire Earth twice daily. Future members of the Joint Polar Satellite System (JPSS) constellation will also carry VIIRS. This paper presents dramatic early examples of multispectral VIIRS imagery capabilities and demonstrates basic applications of that imagery for a wide range of operational users, such as for fire detection, monitoring ice break up in rivers, and visualizing dust plumes over bright surfaces. VIIRS imagery, both single and multiband, as well as the day/night band, is shown to exceed both requirements and expectations.
C1 [Hillger, Donald; Lindsey, Daniel] NOAA, NESDIS, STAR, Ft Collins, CO USA.
[Kopp, Thomas] Aerosp Corp, El Segundo, CA 90245 USA.
[Lee, Thomas; Solbrig, Jeremy] Naval Res Lab, Monterey, CA USA.
[Seaman, Curtis; Miller, Steven; Kidder, Stanley] Colorado State Univ, Cooperat Inst Res Atmosphere, Ft Collins, CO 80523 USA.
[Bachmeier, Scott; Jasmin, Tommy; Rink, Tom] Univ Wisconsin, Cooperat Inst Meteorol Satellite Studies, Madison, WI USA.
RP Hillger, D (reprint author), Colorado State Univ, NOAA, NESDIS, STAR RAMMB CIRA 1375, Ft Collins, CO 80523 USA.
EM don.hillger@NOAA.gov
RI Hillger, Donald/F-5592-2010; Lindsey, David/E-3517-2011; Lindsey,
Dan/F-5607-2010
OI Hillger, Donald/0000-0001-7297-2640; Lindsey, Dan/0000-0002-0967-5683
FU JPSS Program Office; NOAA/NESDIS/STAR
FX The authors would like to thank the following additional members of the
STAR Imagery and Visualization Team
(http://rammb.cira.colostate.edu/projects/npp/) for their contributions:
Tim Schmit (GOES imagery liaison), Debra Molenar, Steve Finley, Chris
Elvidge, Jeff Hawkins, Kim Richardson, Jeff Cetola, Keith Hutchinson,
Steve Mills, and Calvin Liang. Funding for this work was provided by the
JPSS Program Office and NOAA/NESDIS/STAR. The views, opinions, and
findings contained in this article are those of the authors and should
not be construed as an official National Oceanic and Atmospheric
Administration (NOAA) or U.S. government position, policy, or decision.
NR 12
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U1 3
U2 38
PU AMER METEOROLOGICAL SOC
PI BOSTON
PA 45 BEACON ST, BOSTON, MA 02108-3693 USA
SN 0003-0007
EI 1520-0477
J9 B AM METEOROL SOC
JI Bull. Amer. Meteorol. Soc.
PD JUL
PY 2013
VL 94
IS 7
BP 1019
EP 1029
DI 10.1175/BAMS-D-12-00097.1
PG 11
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 188LU
UT WOS:000322195300005
ER
PT J
AU Zhang, JH
He, CL
Parrish, DA
Shreeve, JM
AF Zhang, Jiaheng
He, Chunlin
Parrish, Damon A.
Shreeve, Jean'ne M.
TI Nitramines with Varying Sensitivities: Functionalized Dipyrazolyl-
N-nitromethanamines as Energetic Materials
SO CHEMISTRY-A EUROPEAN JOURNAL
LA English
DT Article
DE energetic properties; explosives; impact sensitivities; nitramines;
pyrazoles
ID SALTS; POTENTIALS; HYDROGEN; DESIGN; FAMILY; ANION; MONO; BOND
AB 1,3-Dichloro-2-nitro-2-azapropane is an excellent precursor to dense energetic functionalized dipyrazolyl-N-nitromethanamines. This new family of energetic compounds was fully characterized by using 1H, 13C, and 15NNMR and IR spectroscopy, differential scanning calorimetry, elemental analysis, and impact sensitivity tests. Additionally, single-crystal X-ray structuring was done for 3 and 5CH3CN, which gave insight into structural characteristics. The experimentally determined densities of 2-9 fall between 1.69 and 1.90gcm-3. Heats of formation and detonation properties were calculated by using Gaussian03 and EXPLO5 programs, respectively. The influence of different energetic moieties on the structural and energetic properties was established theoretically.
C1 [Zhang, Jiaheng] China Agr Univ, Dept Appl Chem, Beijing 100193, Peoples R China.
[He, Chunlin; Shreeve, Jean'ne M.] Univ Idaho, Dept Chem, Moscow, ID 83844 USA.
[Parrish, Damon A.] Naval Res Lab, Washington, DC 20375 USA.
RP Shreeve, JM (reprint author), Univ Idaho, Dept Chem, Moscow, ID 83844 USA.
EM jshreeve@uidhao.edu
FU ONR [N00014-10-1-0536, N00014-11-AF-0-0002]
FX The authors gratefully acknowledge the support of the ONR
(N00014-10-1-0536 and N00014-11-AF-0-0002) and Dr. C. Bedford.
NR 56
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U2 47
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA BOSCHSTRASSE 12, D-69469 WEINHEIM, GERMANY
SN 0947-6539
J9 CHEM-EUR J
JI Chem.-Eur. J.
PD JUL
PY 2013
VL 19
IS 27
BP 8929
EP 8936
DI 10.1002/chem.201300747
PG 8
WC Chemistry, Multidisciplinary
SC Chemistry
GA 169LT
UT WOS:000320782400027
PM 23681737
ER
PT J
AU Eberle, CJ
AF Eberle, Christopher J.
TI Democratic Authority and the Separation of Church and State
SO ETHICS
LA English
DT Book Review
C1 [Eberle, Christopher J.] US Naval Acad, Annapolis, MD USA.
RP Eberle, CJ (reprint author), US Naval Acad, Annapolis, MD USA.
NR 1
TC 0
Z9 0
U1 0
U2 4
PU UNIV CHICAGO PRESS
PI CHICAGO
PA 1427 E 60TH ST, CHICAGO, IL 60637-2954 USA
SN 0014-1704
J9 ETHICS
JI Ethics
PD JUL
PY 2013
VL 123
IS 4
BP 745
EP 750
DI 10.1086/670932
PG 6
WC Ethics; Philosophy
SC Social Sciences - Other Topics; Philosophy
GA 180BE
UT WOS:000321567000008
ER
PT J
AU Landrum, LM
Java, J
Mathews, CA
Lanneau, GS
Copeland, LJ
Armstrong, DK
Walker, JL
AF Landrum, Lisa M.
Java, James
Mathews, Cara A.
Lanneau, Grainger S., Jr.
Copeland, Larry J.
Armstrong, Deborah K.
Walker, Joan L.
TI Prognostic factors for stage III epithelial ovarian cancer treated with
intraperitoneal chemotherapy: A Gynecologic Oncology Group study
SO GYNECOLOGIC ONCOLOGY
LA English
DT Article; Proceedings Paper
CT Semi-Annual Meeting of the Gynecology-Oncology-Group
CY JUL 24, 2013
CL Boston, MA
SP Gynecol Oncol Grp
DE Epithelial ovarian cancer; Intraperitoneal chemotherapy
ID PRIMARY CYTOREDUCTIVE SURGERY; RESIDUAL DISEASE; GROUP EXPERIENCE; FREE
INTERVAL; OLDER WOMEN; CARCINOMA; CISPLATIN; PACLITAXEL; SURVIVAL; TRIAL
AB Objectives. To determine prognostic factors for survival in ovarian cancer patients treated with intraperitoneal (IP) chemotherapy using ancillary data from cooperative group clinical trials.
Methods. Data were collected from 428 patients with stage III ovarian cancer who underwent optimal surgical cytoreduction (<1 cm) followed by IP paclitaxel/platinum chemotherapy. Primary endpoints were progression free survival (PFS) and overall survival (OS). Potential prognostic variables were included in Cox proportional hazard regression models. Multivariate analysis was conducted to identify independent prognostic factors.
Results. Median PFS was 24.9 months (95% CI, 23.0-29.2) and median OS was 61.8 months (95% CI, 55.5-69.8). Predictors for PFS were histology, surgical stage and residual disease. Age, histology, and residual disease were prognostic for OS. There were no differences in the hazard ratio for death or progression between patients with positive, negative, or unknown lymph node status. For patients receiving IP chemotherapy (n = 428), 36% of patients had no residual disease with median PFS of 43.2 months (95% CI 32.5-60.4) and median OS of 110 months (95% CI 60.0-161.3).
Conclusions. Age, histology, and extent of residual disease were predictors of OS in stage III patients treated with IP chemotherapy following optimal cytoreduction. Patients with no residual disease following primary
C1 [Landrum, Lisa M.; Mathews, Cara A.; Walker, Joan L.] Univ Oklahoma, Hlth Sci Ctr, Sect GYN Oncol, Oklahoma City, OK 73104 USA.
[Java, James] Roswell Pk Canc Inst, Gynecol Oncol Grp, Stat & Data Ctr, Buffalo, NY 14263 USA.
[Lanneau, Grainger S., Jr.] USN, San Diego Med Ctr, San Diego, CA 92152 USA.
[Copeland, Larry J.] Ohio State Univ, Columbus, OH 43210 USA.
[Armstrong, Deborah K.] Johns Hopkins Univ Hosp, Baltimore, MD 21287 USA.
RP Landrum, LM (reprint author), Univ Oklahoma, Hlth Sci Ctr, 800 NE 10th St, Oklahoma City, OK 73104 USA.
EM Lisa-landrum@ouhsc.edu
FU NCI NIH HHS [U10 CA027469, CA 37517, P30 CA006973, CA 27469, U10
CA037517]
NR 26
TC 44
Z9 44
U1 0
U2 2
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0090-8258
J9 GYNECOL ONCOL
JI Gynecol. Oncol.
PD JUL
PY 2013
VL 130
IS 1
BP 12
EP 18
DI 10.1016/j.yg,yno.2013.04.001
PG 7
WC Oncology; Obstetrics & Gynecology
SC Oncology; Obstetrics & Gynecology
GA 173PV
UT WOS:000321092300003
PM 23578540
ER
PT J
AU Prak, DJL
Brown, EK
Trulove, PC
AF Prak, Dianne J. Luning
Brown, Eva K.
Trulove, Paul C.
TI Density, Viscosity, Speed of Sound, and Bulk Modulus of Methyl Alkanes,
Dimethyl Alkanes, and Hydrotreated Renewable Fuels
SO JOURNAL OF CHEMICAL AND ENGINEERING DATA
LA English
DT Article
ID THERMOPHYSICAL PROPERTIES; SURROGATE MIXTURE; PHYSICOCHEMICAL
AUTHENTICITY; BINARY-MIXTURES; KEROSENE; DIESEL; NONANES
AB The density, viscosity, and speed of sound were measured in this work for pure component branched alkanes (2-methyloctane, 4-methyloctane, 2-methylnonane, 2-methyldecane, 3-methylundecane, 2-methylpentadecane, 7-methylhexadecane, 3,6-dimethyloctane, and 3,5-dimethylheptane), commonly found in hydrotreated renewable fuels (HRFs) and for HRFs from tallow, camelina oil, and algae and waste cooking oil blended 50/50 with petroleum diesel. The density and viscosity were measured at temperatures from (283.15 to 373.15) K and ranged from (661 to 788) kg.m(-3) for density and (0.261 to 5.36) mPa.s for viscosity. Speed of sound data were measured at temperatures from (283.15 to 323.15) K and spanned from (1081 to 1393) m.s(-1). The bulk modulus was calculated from the density and speed of sound data, and its values varied from (809 to 1527) MPa. All values increased as the carbon chain length on the alkane increased. All physical property values for the HRFs fell between those measured for individual pure component branched alkanes providing property data for the development of surrogate mixtures for these renewable fuels.
C1 [Prak, Dianne J. Luning; Brown, Eva K.; Trulove, Paul C.] US Naval Acad, Dept Chem, Annapolis, MD 21402 USA.
RP Prak, DJL (reprint author), US Naval 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 a grant from the Office of Naval Research.
NR 51
TC 6
Z9 6
U1 0
U2 25
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 JUL
PY 2013
VL 58
IS 7
BP 2065
EP 2075
DI 10.1021/je400274f
PG 11
WC Thermodynamics; Chemistry, Multidisciplinary; Engineering, Chemical
SC Thermodynamics; Chemistry; Engineering
GA 184IQ
UT WOS:000321883700021
ER
PT J
AU Terwey, W
Abarca, SF
Montgomery, MT
AF Terwey, Wesley
Abarca, Sergio F.
Montgomery, Michael T.
TI CORRIGENDUM
SO JOURNAL OF THE ATMOSPHERIC SCIENCES
LA English
DT Article
ID EYEWALL
C1 [Terwey, Wesley] Univ S Alabama, Mobile, AL 36688 USA.
[Abarca, Sergio F.; Montgomery, Michael T.] Naval Postgrad Sch, Monterey, CA USA.
RP Terwey, W (reprint author), 307 Univ Blvd N,LSCB 136, Mobile, AL 36688 USA.
EM terwey@southalabama.edu
NR 2
TC 0
Z9 0
U1 1
U2 3
PU AMER METEOROLOGICAL SOC
PI BOSTON
PA 45 BEACON ST, BOSTON, MA 02108-3693 USA
SN 0022-4928
J9 J ATMOS SCI
JI J. Atmos. Sci.
PD JUL
PY 2013
VL 70
IS 7
BP 2335
EP 2335
DI 10.1175/JAS-D-13-0133.1
PG 1
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 187NK
UT WOS:000322125600028
ER
PT J
AU Lumb, MP
Yoon, W
Bailey, CG
Scheiman, D
Tischler, JG
Walters, RJ
AF Lumb, Matthew P.
Yoon, Woojun
Bailey, Christopher G.
Scheiman, David
Tischler, Joseph G.
Walters, Robert J.
TI Modeling and analysis of high-performance, multicolored anti-reflection
coatings for solar cells
SO OPTICS EXPRESS
LA English
DT Article
ID SILICON; FILMS
AB In this work solar cell anti-reflection coatings tuned to give a specific hue under solar illumination are investigated. We demonstrate that it is possible to form patterned coatings with large color contrast and high transmittance. We use colorimetric and thin film optics models to explore the relationship between the color and performance of bilayer anti-reflection coatings on Si, and predict the photocurrent generation from an example Si solar cell. The colorimetric predictions were verified by measuring a series of coatings deposited on Si substrates. Finally, a patterned Si sample was produced using a simple, low-cost photolithography procedure to selectively etch only the top layer of a bilayer coating to demonstrate a high-performance anti-reflection coating with strong color contrast. (C) 2013 Optical Society of America
C1 [Lumb, Matthew P.; Yoon, Woojun; Bailey, Christopher G.; Scheiman, David; Tischler, Joseph G.; Walters, Robert J.] USN, Res Lab, Washington, DC 20375 USA.
[Lumb, Matthew P.] George Washington Univ, Washington, DC 20037 USA.
RP Lumb, MP (reprint author), USN, Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM matthew.lumb.ctr.uk@nrl.navy.mil
FU Office of Naval Research; National Research Council Research
Associateship Awards at the U.S. Naval Research Laboratory
FX The authors would like to thank M. Gonzalez and M. Yakes for valuable
input and advice regarding this work, J. J. Hartman and J. Marshall for
photographing the samples presented in this work and C. Allen for the
printing of the photolithography masks. This work was supported by the
Office of Naval Research and was performed while W. Yoon and C. B.
Bailey held National Research Council Research Associateship Awards at
the U.S. Naval Research Laboratory.
NR 13
TC 3
Z9 3
U1 2
U2 22
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 JUL 1
PY 2013
VL 21
IS 13
BP A585
EP A594
DI 10.1364/OE.21.00A585
PG 10
WC Optics
SC Optics
GA 176FF
UT WOS:000321288400001
PM 24104486
ER
PT J
AU Gemmill, KB
Muttenthaler, M
Delehanty, JB
Stewart, MH
Susumu, K
Dawson, PE
Medintz, IL
AF Gemmill, Kelly Boeneman
Muttenthaler, Markus
Delehanty, James B.
Stewart, Michael H.
Susumu, Kimihiro
Dawson, Philip E.
Medintz, Igor L.
TI Evaluation of diverse peptidyl motifs for cellular delivery of
semiconductor quantum dots
SO ANALYTICAL AND BIOANALYTICAL CHEMISTRY
LA English
DT Article
DE Cell-penetrating peptide; Quantum dot; Nanoparticle; Cell; Delivery;
Endocytosis; Labeling; Nanotechnology; Sweet arrow peptide; Quantum dot;
Metal affinity
ID BIOCOMPATIBLE SEMICONDUCTOR; INTRACELLULAR DELIVERY; PENETRATING
PEPTIDES; GOLD NANOPARTICLES; DRUG-DELIVERY; RICH PEPTIDES; HISTIDINE;
PH; CARRIERS; LIGANDS
AB Cell-penetrating peptides (CPPs) have rapidly become a mainstay technology for facilitating the delivery of a wide variety of nanomaterials to cells and tissues. Currently, the library of CPPs to choose from is still limited, with the HIV TAT-derived motif still being the most used. Among the many materials routinely delivered by CPPs, nanoparticles are of particular interest for a plethora of labeling, imaging, sensing, diagnostic, and therapeutic applications. The development of nanoparticle-based technologies for many of these uses will require access to a much larger number of functional peptide motifs that can both facilitate cellular delivery of different types of nanoparticles to cells and be used interchangeably in the presence of other peptides and proteins on the same surface. Here, we evaluate the utility of four peptidyl motifs for their ability to facilitate delivery of luminescent semiconductor quantum dots (QDs) in a model cell culture system. We find that an LAH4 motif, derived from a membrane-inserting antimicrobial peptide, and a chimeric sequence that combines a sweet arrow peptide with a portion originating from the superoxide dismutase enzyme provide effective cellular delivery of QDs. Interestingly, a derivative of the latter sequence lacking just a methyl group was found to be quite inefficient, suggesting that even small changes can have significant functional outcomes. Delivery was effected using 1 h incubation with cells, and fluorescent counterstaining strongly suggests an endosomal uptake process that requires a critical minimum number or ratio of peptides to be displayed on the QD surface. Concomitant cytoviability testing showed that the QD-peptide conjugates are minimally cytotoxic in the model COS-1 cell line tested. Potential applications of these peptides in the context of cellular delivery of nanoparticles and a variety of other (bio)molecules are discussed.
C1 [Gemmill, Kelly Boeneman; Delehanty, James B.; Medintz, Igor L.] US Naval Res Lab, Ctr Bio Mol Sci & Engn Code 6900, Washington, DC 20375 USA.
[Stewart, Michael H.; Susumu, Kimihiro] US Naval Res Lab, Div Opt Sci Code 5600, Washington, DC 20375 USA.
[Muttenthaler, Markus; Dawson, Philip E.] Scripps Res Inst, Dept Chem, La Jolla, CA 92037 USA.
[Muttenthaler, Markus; Dawson, Philip E.] Scripps Res Inst, Dept Cell Biol, La Jolla, CA 92037 USA.
[Susumu, Kimihiro] Sotera Def Solut, Annapolis Jct, MD 20701 USA.
RP Medintz, IL (reprint author), US Naval Res Lab, Ctr Bio Mol Sci & Engn Code 6900, Washington, DC 20375 USA.
EM igor.medintz@nrl.navy.mil
RI Muttenthaler, Markus/B-4944-2017
OI Muttenthaler, Markus/0000-0003-1996-4646
FU NRL NSI; DTRA JSTO MIPR [B112582M]; European Union [254897]
FX The authors acknowledge NRL NSI and DTRA JSTO MIPR # B112582M for
financial support. M.M. acknowledges funding from the European Union
Seventh Framework Programme (FP7/2007-2013) under grant agreement number
254897.
NR 41
TC 10
Z9 10
U1 6
U2 58
PU SPRINGER HEIDELBERG
PI HEIDELBERG
PA TIERGARTENSTRASSE 17, D-69121 HEIDELBERG, GERMANY
SN 1618-2642
J9 ANAL BIOANAL CHEM
JI Anal. Bioanal. Chem.
PD JUL
PY 2013
VL 405
IS 19
BP 6145
EP 6154
DI 10.1007/s00216-013-6982-2
PG 10
WC Biochemical Research Methods; Chemistry, Analytical
SC Biochemistry & Molecular Biology; Chemistry
GA 177OM
UT WOS:000321384700002
PM 23732866
ER
PT J
AU Fang, K
Uhan, NA
Zhao, F
Sutherland, JW
AF Fang, Kan
Uhan, Nelson A.
Zhao, Fu
Sutherland, John W.
TI Flow shop scheduling with peak power consumption constraints
SO ANNALS OF OPERATIONS RESEARCH
LA English
DT Article
DE Scheduling; Flow shop; Energy; Peak power consumption; Integer
programming; Combinatorial optimization
ID ENERGY
AB We study scheduling as a means to address the increasing energy concerns in manufacturing enterprises. In particular, we consider a flow shop scheduling problem with a restriction on peak power consumption, in addition to the traditional time-based objectives. We investigate both mathematical programming and combinatorial approaches to this scheduling problem, and test our approaches with instances arising from the manufacturing of cast iron plates.
C1 [Fang, Kan] Purdue Univ, Sch Ind Engn, W Lafayette, IN 47907 USA.
[Uhan, Nelson A.] US Naval Acad, Dept Math, Annapolis, MD 21402 USA.
[Zhao, Fu] Purdue Univ, Div Environm & Ecol Engn, W Lafayette, IN 47904 USA.
[Zhao, Fu] Purdue Univ, Sch Mech Engn, W Lafayette, IN 47904 USA.
[Sutherland, John W.] Purdue Univ, Div Environm & Ecol Engn, W Lafayette, IN 47907 USA.
RP Uhan, NA (reprint author), US Naval Acad, Dept Math, Annapolis, MD 21402 USA.
EM fang19@purdue.edu; uhan@usna.edu; fzhao@purdue.edu; jwsuther@purdue.edu
NR 29
TC 24
Z9 24
U1 2
U2 10
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0254-5330
J9 ANN OPER RES
JI Ann. Oper. Res.
PD JUL
PY 2013
VL 206
IS 1
BP 115
EP 145
DI 10.1007/s10479-012-1294-z
PG 31
WC Operations Research & Management Science
SC Operations Research & Management Science
GA 168GP
UT WOS:000320694000007
ER
PT J
AU Pruessner, MW
Stievater, TH
Goetz, PG
Rabinovich, WS
Urick, VJ
AF Pruessner, Marcel W.
Stievater, Todd H.
Goetz, Peter G.
Rabinovich, William S.
Urick, Vincent J.
TI Cascaded integrated waveguide linear microcavity filters
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID FABRY-PEROT MICROCAVITIES; BRAGG MIRRORS; RESONATOR; CONVERSION
AB We experimentally demonstrate cascaded Fabry-Perot microcavity filters fabricated on silicon-on-insulator substrates. The cavities are formed by etching three sets of quarter-wavelength trenches along a rib waveguide, each set forming a Bragg reflector. Various configurations are examined with a view towards maximizing the filter extinction and minimizing the linewidth. We investigate the origin of spurious cavity modes and show how these are minimized. The effect of mode-splitting due to inter-cavity coupling is suppressed by increasing the reflectivity of the center mirror. Experimental results compare well with transfer matrix predictions.
C1 [Pruessner, Marcel W.; Stievater, Todd H.; Goetz, Peter G.; Rabinovich, William S.; Urick, Vincent J.] Naval Res Lab, Washington, DC 20375 USA.
RP Pruessner, MW (reprint author), Naval Res Lab, Washington, DC 20375 USA.
FU Office of Naval Research (ONR)
FX M.W.P. thanks the NRL Nanoscience Institute staff for fabrication
assistance and J. B. Khurgin (Johns Hopkins University) for useful
discussions. The authors acknowledge the support of the Office of Naval
Research (ONR).
NR 24
TC 3
Z9 3
U1 0
U2 15
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0003-6951
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD JUL 1
PY 2013
VL 103
IS 1
AR 011105
DI 10.1063/1.4813073
PG 5
WC Physics, Applied
SC Physics
GA 179CX
UT WOS:000321497200005
ER
PT J
AU Crookes-Goodson, WJ
Bojanowski, CL
Kay, ML
Lloyd, PF
Blankemeier, A
Hurtubise, JM
Singh, KM
Barlow, DE
Ladouceur, HD
Eby, DM
Johnson, GR
Mirau, PA
Pehrsson, PE
Fraser, HL
Russell, JN
AF Crookes-Goodson, Wendy J.
Bojanowski, Caitlin L.
Kay, Michelle L.
Lloyd, Pamela F.
Blankemeier, Andrew
Hurtubise, Jennifer M.
Singh, Kristi M.
Barlow, Daniel E.
Ladouceur, Harold D.
Eby, D. Matt
Johnson, Glenn R.
Mirau, Peter A.
Pehrsson, Pehr E.
Fraser, Hamish L.
Russell, John N., Jr.
TI The impact of culture medium on the development and physiology of
biofilms of Pseudomonas fluorescens formed on polyurethane paint
SO BIOFOULING
LA English
DT Article
DE Pseudomonas fluorescens; biodeterioration; polyurethane; biofilms;
phosphate storage
ID POLYESTER-POLYURETHANE; INORGANIC POLYPHOSPHATE;
MICROBIAL-CONTAMINATION; ELECTRON-MICROSCOPY; STATIONARY-PHASE; AVIATION
FUEL; BACTERIA; BIODEGRADATION; DEGRADATION; SURVIVAL
AB Microbial biofilms cause the deterioration of polymeric coatings such as polyurethanes (PUs). In many cases, microbes have been shown to use the PU as a nutrient source. The interaction between biofilms and nutritive substrata is complex, since both the medium and the substratum can provide nutrients that affect biofilm formation and biodeterioration. Historically, studies of PU biodeterioration have monitored the planktonic cells in the medium surrounding the material, not the biofilm. This study monitored planktonic and biofilm cell counts, and biofilm morphology, in long-term growth experiments conducted with Pseudomonas fluorescens under different nutrient conditions. Nutrients affected planktonic and biofilm cell numbers differently, and neither was representative of the system as a whole. Microscopic examination of the biofilm revealed the presence of intracellular storage granules in biofilms grown in M9 but not yeast extract salts medium. These granules are indicative of nutrient limitation and/or entry into stationary phase, which may impact the biodegradative capability of the biofilm.
C1 [Crookes-Goodson, Wendy J.; Bojanowski, Caitlin L.; Kay, Michelle L.; Lloyd, Pamela F.; Singh, Kristi M.; Mirau, Peter A.] Air Force Res Lab, Soft Matter Mat Branch, Mat & Mfg Directorate, Wright Patterson AFB, OH USA.
[Blankemeier, Andrew; Hurtubise, Jennifer M.; Fraser, Hamish L.] Ohio State Univ, Dept Mat Sci & Engn, Ctr Accelerated Maturat Mat, Columbus, OH 43210 USA.
[Barlow, Daniel E.; Ladouceur, Harold D.; Pehrsson, Pehr E.; Russell, John N., Jr.] US Naval Res Lab, Surface Chem Branch, Washington, DC USA.
[Eby, D. Matt; Johnson, Glenn R.] Air Force Res Lab, Appl Microbiol & Biochem Branch, Mat & Mfg Directorate, Tyndall AFB, FL USA.
RP Crookes-Goodson, WJ (reprint author), Air Force Res Lab, Soft Matter Mat Branch, Mat & Mfg Directorate, Wright Patterson AFB, OH USA.
EM wendy.goodson@wpafb.af.mil
FU Air Force Office of Scientific Research [12RX14COR]
FX This material is based upon work supported by the Air Force Office of
Scientific Research under award number 12RX14COR. The authors thank Dr
Michael S. Goodson and Dr Sandra Zingarelli for comments on the
manuscript. Distribution Statement A: Approved for public release,
distribution is unlimited. AFRL case no. 88ABW-2012-2622; NRL case no.
12-1231-1898.
NR 61
TC 3
Z9 3
U1 3
U2 20
PU TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
SN 0892-7014
J9 BIOFOULING
JI Biofouling
PD JUL 1
PY 2013
VL 29
IS 6
BP 601
EP 615
DI 10.1080/08927014.2013.783906
PG 15
WC Biotechnology & Applied Microbiology; Marine & Freshwater Biology
SC Biotechnology & Applied Microbiology; Marine & Freshwater Biology
GA 172GQ
UT WOS:000320988800001
PM 23697763
ER
PT J
AU Leski, TA
Bangura, U
Jimmy, DH
Ansumana, R
Lizewski, SE
Stenger, DA
Taitt, CR
Vora, GJ
AF Leski, Tomasz A.
Bangura, Umaru
Jimmy, David Henry
Ansumana, Rashid
Lizewski, Stephen E.
Stenger, David A.
Taitt, Chris Rowe
Vora, Gary J.
TI Multidrug-resistant tet(X)-containing hospital isolates in Sierra Leone
SO INTERNATIONAL JOURNAL OF ANTIMICROBIAL AGENTS
LA English
DT Article
DE Flavin-dependent monooxygenase; tet(X); Tigecycline; Multidrug
resistance; Molecular epidemiology; Tetracycline
ID TETRACYCLINE RESISTANCE; ESCHERICHIA-COLI; GENE; TETX; TIGECYCLINE;
SEQUENCES; RPOB
AB The tet(X) gene encodes a flavin-dependent monooxygenase that confers resistance to all clinically relevant tetracycline antibiotics including tigecycline. It has only previously been identified in environmental and non-human pathogenic bacteria. To investigate levels of multidrug resistance in Bo, Sierra Leone, a molecular epidemiological study was conducted using an antimicrobial resistance determinant microarray (ARDM), PCR and DNA sequencing. The study found that 21% of isolates from Mercy Hospital (Bo, Sierra Leone) were tet(X)-positive, all of which originated from urinary specimens. Use of molecular epidemiological surveillance tools has provided the first evidence of tet(X)-containing multidrug-resistant Gram-negative hospital isolates in a hospital in Sierra Leone. Published by Elsevier B.V. on behalf of International Society of Chemotherapy.
C1 [Leski, Tomasz A.; Stenger, David A.; Taitt, Chris Rowe; Vora, Gary J.] Naval Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC USA.
[Bangura, Umaru; Jimmy, David Henry; Ansumana, Rashid] Mercy Hosp, Res Lab, Kulanda Town, Bo, Sierra Leone.
[Bangura, Umaru; Jimmy, David Henry; Ansumana, Rashid] Njala Univ, Sch Environm Sci, Bo, Sierra Leone.
[Lizewski, Stephen E.] Naval Med Res Ctr, Infect Dis Res Directorate, Silver Spring, MD USA.
RP Vora, GJ (reprint author), Naval Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC USA.
EM gary.vora@nrl.navy.mil
RI Leski, Tomasz/K-6916-2013;
OI Leski, Tomasz/0000-0001-7688-9887; Vora, Gary/0000-0002-0657-8597
FU Joint Science and Technology Office, Defense Threat Reduction Agency;
Defense Medical Research and Development Program Intramural Applied
Research and Advanced Technology Development Awards
FX This work was supported in part by the Joint Science and Technology
Office, Defense Threat Reduction Agency (to DAS) and Defense Medical
Research and Development Program Intramural Applied Research and
Advanced Technology Development Awards (to GJV and CRT). The opinions
and assertions contained herein are those of the authors and are not to
be construed as those of the US Navy, military service at large or US
Government.
NR 20
TC 11
Z9 12
U1 8
U2 24
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0924-8579
J9 INT J ANTIMICROB AG
JI Int. J. Antimicrob. Agents
PD JUL
PY 2013
VL 42
IS 1
BP 83
EP 86
DI 10.1016/j.ijantimicag.2013.04.014
PG 4
WC Infectious Diseases; Microbiology; Pharmacology & Pharmacy
SC Infectious Diseases; Microbiology; Pharmacology & Pharmacy
GA 178JH
UT WOS:000321443400016
PM 23688520
ER
PT J
AU Devlin, JJ
DeVito, SS
Littlejohn, LF
Gutierrez, MA
Nowak, G
Henao, J
Bielawski, A
Kotora, J
Johnson, AS
AF Devlin, John J.
DeVito, Sara S.
Littlejohn, Lanny F.
Gutierrez, Miguel A.
Nowak, Gosia
Henao, Jose
Bielawski, Anthony
Kotora, Joseph
Johnson, Andrew S.
TI TERLIPRESSIN WITH LIMITED FLUID RESUSCITATION IN A SWINE MODEL OF
HEMORRHAGE
SO JOURNAL OF EMERGENCY MEDICINE
LA English
DT Article
DE terlipressin; hemorrhage; military; shock; resuscitation; damage control
ID ARGININE-VASOPRESSIN; CARDIAC-ARREST; DAMAGE CONTROL; SHOCK;
HYPOTENSION; EPINEPHRINE; ANESTHESIA; THERAPY; LACTATE; TRAUMA
AB Background: Principles of damage control resuscitation include minimizing intravenous fluid (IVF) administration while correcting perfusion pressure as quickly as possible. Recent studies have identified a potential advantage of vasopressin over catecholamines in traumatic shock. Terlipressin (TP) is a vasopressin analogue used to reverse certain shock etiologies in some European countries. Study Objective: We evaluated three dosages of TP when combined with a limited colloid resuscitation strategy on mean arterial pressure (MAP) and lactatemia in a swine model of isolated hemorrhage. Methods: Sixty anesthetized swine underwent intubation and severe hemorrhage. Subjects were randomized to one of four resuscitation groups: 4 mL/kg Hextend (R) (Hospira Inc, Lake Forest, IL) only, 3.75 mu g/kg TP + Hextend, 7.5 mu g/kg TP + Hextend, or 15 mu g/kg TP + Hextend. MAP and heart rate were recorded every 5 min. Baseline and serial lactate values at 30-min intervals were recorded and compared. Results: Subjects receiving 7.5 mu g/kg TP had significantly higher MAPs at times t(15) (p = 0.012), t(20) (p = 0.004), t(25) (p = 0.018), t(30) (p = 0.032), t(35) (p = 0.030), and t(40) (p = 0.021). No statistically significant differences in lactate values between TP groups and controls were observed. Conclusion: Subjects receiving 7.5 mu g/kg of TP demonstrated improved MAP within 10 min of administration. When combined with minimal IVF resuscitation, TP doses between 3.75 and 15 mu g/kg do not elevate lactate levels in hemorrhaged swine. Published by Elsevier Inc.
C1 [Devlin, John J.; DeVito, Sara S.; Littlejohn, Lanny F.; Gutierrez, Miguel A.; Henao, Jose; Bielawski, Anthony; Kotora, Joseph; Johnson, Andrew S.] Naval Med Ctr Portsmouth, Dept Emergency Med, Portsmouth, VA USA.
[Nowak, Gosia] Navy & Marine Corps Public Hlth Ctr, Portsmouth, VA USA.
RP Devlin, JJ (reprint author), Emory Univ, Sch Med, Dept Emergency Med, Atlanta, GA 30342 USA.
FU United States Navy Bureau of Medicine and Surgery, Washington, DC
FX Research data derived from an approved Naval Medical Center Portsmouth,
VA Institutional Animal Care and Use Committee. Funding for this study
was provided by the United States Navy Bureau of Medicine and Surgery,
Washington, DC.
NR 36
TC 2
Z9 3
U1 0
U2 1
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 0736-4679
EI 1090-1280
J9 J EMERG MED
JI J. Emerg. Med.
PD JUL
PY 2013
VL 45
IS 1
BP 78
EP 84
DI 10.1016/j.jemermed.2012.12.023
PG 7
WC Emergency Medicine
SC Emergency Medicine
GA 174WQ
UT WOS:000321188200024
PM 23602144
ER
PT J
AU Lambrakos, SG
AF Lambrakos, S. G.
TI Inverse Thermal Analysis of 21-6-9 Stainless Steel Laser Welds
SO JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
LA English
DT Article
DE modeling processes; stainless steel; welding
AB Case study results of inverse thermal analyses of 21-6-9 stainless steel laser welds are presented in this article. These analyses employ a methodology that is depicted in terms of analytic basis functions for inverse thermal analysis of steady-state energy deposition in plate structures. The results of the case studies presented provide parametric representations of weld temperature histories that can be adopted as input data to various types of computational procedures, such as those for prediction of solid-state phase transformations. In addition, these temperature histories can be used to construct parametric-function representations for inverse thermal analysis of welds corresponding to other process parameters or welding process conditions of which are within similar regimes. The case studies presented also examine specific aspects the inverse-analysis methodology relevant to further development of algorithms for its application in practice.
C1 Naval Res Lab, Ctr Computat Mat, Mat Sci & Technol Div, Washington, DC USA.
RP Lambrakos, SG (reprint author), Naval Res Lab, Ctr Computat Mat, Mat Sci & Technol Div, Code 6390, Washington, DC USA.
EM samuel.lambrakos@nrl.navy.mil
FU Naval Research Laboratory (NRL)
FX This study was supported by the Naval Research Laboratory (NRL) internal
core program.
NR 8
TC 0
Z9 0
U1 3
U2 7
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 JUL
PY 2013
VL 22
IS 7
SI SI
BP 1957
EP 1963
DI 10.1007/s11665-013-0486-2
PG 7
WC Materials Science, Multidisciplinary
SC Materials Science
GA 167YL
UT WOS:000320671400020
ER
PT J
AU Moran, D
AF Moran, Daniel
TI Transnational Soldiers: Foreign Military Enlistment in the Modern Era
SO JOURNAL OF MILITARY HISTORY
LA English
DT Book Review
C1 [Moran, Daniel] Naval Postgrad Sch, Monterey, CA USA.
RP Moran, D (reprint author), Naval Postgrad Sch, Monterey, CA 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 JUL
PY 2013
VL 77
IS 3
BP 1114
EP 1116
PG 3
WC History
SC History
GA 174NM
UT WOS:000321162700032
ER
PT J
AU Knaack, GL
Charkhkar, H
Hamilton, FW
Peixoto, N
O'Shaughnessy, TJ
Pancrazio, JJ
AF Knaack, Gretchen L.
Charkhkar, Hamid
Hamilton, Franz W.
Peixoto, Nathalia
O'Shaughnessy, Thomas J.
Pancrazio, Joseph J.
TI Differential responses to omega-agatoxin IVA in murine frontal cortex
and spinal cord derived neuronal networks
SO NEUROTOXICOLOGY
LA English
DT Article
DE omega-Agatoxin-IVA; Microelectrode array; Extracellular recordings;
Primary neuronal cultures
ID RAT PREFRONTAL CORTEX; CALCIUM-CHANNELS; MICROELECTRODE ARRAYS;
IN-VITRO; TRANSMITTER RELEASE; GLUTAMATE RELEASE; NEURAL-NETWORK;
AGA-IVA; CULTURES; MODULATION
AB omega-Agatoxin-IVA is a well known P/Q-type Ca2+ channel blocker and has been shown to affect presynaptic Ca2+ currents as well postsynaptic potentials. P/Q-type voltage gated Ca2+ channels play a vital role in presynaptic neurotransmitter release and thus play a role in action potential generation. Monitoring spontaneous activity of neuronal networks on microelectrode arrays (MEAs) provides an important tool for examining this neurotoxin. Changes in extracellular action potentials are readily observed and are dependent on synaptic function. Given the efficacy of murine frontal cortex and spinal cord networks to detect neuroactive substances, we investigated the effects of omega-agatoxin on spontaneous action potential firing within these networks. We found that networks derived from spinal cord are more sensitive to the toxin than those from frontal cortex; a concentration of only 10 nM produced statistically significant effects on activity from spinal cord networks whereas 50 nM was required to alter activity in frontal cortex networks. Furthermore, the effects of the toxin on frontal cortex are more complex as unit specific responses were observed. These manifested as either a decrease or increase in action potential firing rate which could be statistically separated as unique clusters. Administration of bicuculline, a GABA(A) inhibitor, isolated a single response to omega-agatoxin, which was characterized by a reduction in network activity. These data support the notion that the two clusters detected with w-agatoxin exposure represent differential responses from excitatory and inhibitory neuronal populations. (c) 2013 Elsevier Inc. All rights reserved.
C1 [Knaack, Gretchen L.] George Mason Univ, Dept Mol Neurosci, Krasnow Inst Adv Study, Fairfax, VA 22030 USA.
[Charkhkar, Hamid; Hamilton, Franz W.; Peixoto, Nathalia; Pancrazio, Joseph J.] George Mason Univ, Elect & Comp Engn Dept, Fairfax, VA 22030 USA.
[O'Shaughnessy, Thomas J.] Naval Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 USA.
[Peixoto, Nathalia; Pancrazio, Joseph J.] George Mason Univ, Dept Bioengn, Fairfax, VA 22030 USA.
RP Knaack, GL (reprint author), George Mason Univ, Dept Mol Neurosci, Krasnow Inst Adv Study, 4400 Univ Dr MSN 2A1, Fairfax, VA 22030 USA.
EM gknaack@masonlive.gmu.edu
RI Pancrazio, Joseph/M-3206-2015;
OI Pancrazio, Joseph/0000-0001-8276-3690; Peixoto,
Nathalia/0000-0002-4203-4140
NR 41
TC 10
Z9 10
U1 0
U2 8
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0161-813X
J9 NEUROTOXICOLOGY
JI Neurotoxicology
PD JUL
PY 2013
VL 37
BP 19
EP 25
DI 10.1016/j.neuro.2013.03.002
PG 7
WC Neurosciences; Pharmacology & Pharmacy; Toxicology
SC Neurosciences & Neurology; Pharmacology & Pharmacy; Toxicology
GA 177ZH
UT WOS:000321413400003
PM 23523780
ER
PT J
AU Kim, W
Baker, C
Bowman, S
Florea, C
Villalobos, G
Shaw, B
Sadowski, B
Hunt, M
Aggarwal, I
Sanghera, J
AF Kim, Woohong
Baker, Colin
Bowman, Steve
Florea, Catalin
Villalobos, Guillermo
Shaw, Brandon
Sadowski, Bryan
Hunt, Michael
Aggarwal, Ishwar
Sanghera, Jasbinder
TI Laser oscillation from Ho3+ doped Lu2O3 ceramics
SO OPTICAL MATERIALS EXPRESS
LA English
DT Article
ID MU-M; YAG; THULIUM
AB We report, for the first time, the laser oscillation from 2% Ho3+:Lu2O3 hot pressed ceramic. We have synthesized optical quality Lu2O3 nano-powders doped with concentrations as high as 5% Ho3+. The powders were synthesized by a co-precipitation method beginning with nitrates of holmium and lutetium. The nano-powders were hot pressed into optical quality ceramic discs. The optical transmission of the ceramic discs is excellent, nearly approaching the theoretical limit. The optical, spectral and morphological properties as well as the preliminary lasing performance from highly transparent ceramics are presented. (C) 2013 Optical Society of America
C1 [Kim, Woohong; Baker, Colin; Bowman, Steve; Villalobos, Guillermo; Shaw, Brandon; Sanghera, Jasbinder] Naval Res Lab, Opt Sci Div, Washington, DC 20375 USA.
[Florea, Catalin; Sadowski, Bryan; Aggarwal, Ishwar] Sotera Def Solut, Crofton, MD USA.
[Hunt, Michael] URF, Greenbelt, MD USA.
RP Kim, W (reprint author), Naval Res Lab, Opt Sci Div, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM rick.kim@nrl.navy.mil
RI Baker, Colin/I-6657-2015
FU Joint Technology Office for High Energy Lasers (JTO-HEL)
FX The authors would like to acknowledge the financial support provided by
the Joint Technology Office for High Energy Lasers (JTO-HEL).
NR 18
TC 7
Z9 7
U1 2
U2 26
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 JUL 1
PY 2013
VL 3
IS 7
DI 10.1364/OME.3.000913
PG 7
WC Materials Science, Multidisciplinary; Optics
SC Materials Science; Optics
GA 176WL
UT WOS:000321337000002
ER
PT J
AU Mayer-Haug, K
Read, S
Brinckmann, J
Dew, N
Grichnik, D
AF Mayer-Haug, Katrin
Read, Stuart
Brinckmann, Jan
Dew, Nicholas
Grichnik, Dietmar
TI Entrepreneurial talent and venture performance: A meta-analytic
investigation of SMEs
SO RESEARCH POLICY
LA English
DT Article
DE Entrepreneur; Economic growth; Talent; Meta-analysis; SME; Performance
ID RESEARCH-AND-DEVELOPMENT; INTERNATIONAL JOINT VENTURES; TECHNOLOGY-BASED
FIRMS; TOP MANAGEMENT TEAMS; BUSINESS OWNERS; KNOWLEDGE-ACQUISITION;
COMPETITIVE ADVANTAGE; MODERATING ROLE; FINANCIAL PERFORMANCE;
CULTURAL-DIFFERENCES
AB As the broad link between small and medium-sized firm activity and key policy goals such as employment or economic growth has become generally accepted, the conversation has focused on a more nuanced understanding of the entrepreneurial engines of economic activity. A significant body of research looking at antecedents to venture performance has identified that entrepreneurial talent variables account for meaningful differences in venture performance and that significant heterogeneity exists across performance measures. These are important issues for institutions and policy makers seeking to achieve specific economic goals (e.g., survival or growth of ventures, employment or revenue). Using meta-analysis, we integrate this work to view connections between aspects of entrepreneurial talent and different performance outcomes. Our investigation includes 50,045 firms (K of 183 studies) and summarizes 1002 observations of small and medium-sized firms. Analysis of these data yields an unexpectedly weak connection between education and performance. Furthermore, growth, scale (number of employees) and sales outcomes are significantly related to planning skills, while profit and other financial and qualitative measures are strongly connected with the network surrounding the firm founders. Moreover, we observe that entrepreneurial talent is more relevant in developing economies. (C) 2013 Elsevier B.V. All rights reserved.
C1 [Mayer-Haug, Katrin] WHU Otto Beisheim Sch Management, D-56179 Vallendar, Germany.
[Read, Stuart] IMD, CH-1001 Lausanne, Switzerland.
[Brinckmann, Jan] ESADE, Barcelona 08034, Spain.
[Dew, Nicholas] Naval Postgrad Sch, Monterey, CA 93943 USA.
[Grichnik, Dietmar] Univ St Gallen, CH-9000 St Gallen, Switzerland.
RP Mayer-Haug, K (reprint author), WHU Otto Beisheim Sch Management, Burgpl 2, D-56179 Vallendar, Germany.
EM katrin.mayer-haug@whu.edu; stuart.read@imd.ch; jan.brinckmann@esade.edu;
ndew@nps.edu; dietmar.grichnik@unisg.ch
NR 286
TC 12
Z9 13
U1 17
U2 125
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0048-7333
EI 1873-7625
J9 RES POLICY
JI Res. Policy
PD JUL-AUG
PY 2013
VL 42
IS 6-7
BP 1251
EP 1273
DI 10.1016/j.respol.2013.03.001
PG 23
WC Management; Planning & Development
SC Business & Economics; Public Administration
GA 180OJ
UT WOS:000321604200010
ER
PT J
AU Hill, MA
Ghee, TA
Kaufman, J
Dhaniyala, S
AF Hill, Michael A.
Ghee, Terence A.
Kaufman, Jonathan
Dhaniyala, Suresh
TI Investigation of Aerosol Penetration Through Individual Protective
Equipment in Elevated Wind Conditions
SO AEROSOL SCIENCE AND TECHNOLOGY
LA English
DT Article
ID FIBROUS FILTERS; PART I; PERMEABILITY; EFFICIENCY
AB A methodology to characterize particle penetration characteristics of individual protective equipment (IPE) under elevated wind conditions was developed. Performance of a complete IPE system can be determined from the knowledge of the performance characteristics of the IPE subsystems, or components. Here, particle penetration characteristics of a cylindrical-shaped component, consisting of an outer fabric sleeve enclosing an inner appendage, were studied as a function of particle size and ambient wind conditions. A component particle penetration model was developed by combining a potential flow model to calculate flow through and around a component with a filtration model. The filtration model combines classical filtration theory with simple bench-top experiments to determine net particle penetration. The component model predictions of particle penetration through a cylindrical component suggest that its filtration performance is strongly dependent on particle size and ambient wind velocities. To test model predictions, wind-tunnel experiments were conducted over an ambient wind velocity range of 10-80 mph (5-40m s(-1)) and particle diameter range of 10nm to 2m. The experimental results validated model predictions of particle penetration through a cylindrical component. The component model can be extended to model the integrated IPE system considering it to be composed of a combination of cylindrical components. Copyright 2013 American Association for Aerosol Research
C1 [Hill, Michael A.; Dhaniyala, Suresh] Clarkson Univ, Potsdam, NY 13699 USA.
[Ghee, Terence A.] Naval Air Syst Command, Patuxent River, MD USA.
[Kaufman, Jonathan] Def Threat Reduct Agcy, Ft Belvoir, VA USA.
RP Dhaniyala, S (reprint author), Clarkson Univ, 8 Clarkson Ave, Potsdam, NY 13699 USA.
EM sdhaniya@clarkson.edu
FU Defense Threat Reduction Agency (DTRA) [SEA 139]
FX The authors kindly acknowledge funding from the Defense Threat Reduction
Agency (DTRA; Agreement # SEA 139).
NR 19
TC 1
Z9 1
U1 1
U2 6
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA
SN 0278-6826
J9 AEROSOL SCI TECH
JI Aerosol Sci. Technol.
PD JUL 1
PY 2013
VL 47
IS 7
BP 705
EP 713
DI 10.1080/02786826.2013.783899
PG 9
WC Engineering, Chemical; Engineering, Mechanical; Environmental Sciences;
Meteorology & Atmospheric Sciences
SC Engineering; Environmental Sciences & Ecology; Meteorology & Atmospheric
Sciences
GA 176RJ
UT WOS:000321321500001
ER
PT J
AU Baines, EK
Armstrong, JT
van Belle, GT
AF Baines, Ellyn K.
Armstrong, J. Thomas
van Belle, Gerard T.
TI NAVY PRECISION OPTICAL INTERFEROMETER OBSERVATIONS OF THE EXOPLANET HOST
kappa CORONAE BOREALIS AND THEIR IMPLICATIONS FOR THE STAR'S AND
PLANET'S MASSES AND AGES
SO ASTROPHYSICAL JOURNAL LETTERS
LA English
DT Article
DE infrared: stars; stars: fundamental parameters; stars: individual (HD
142091); techniques: interferometric
ID A-TYPE STARS; ROTATIONAL VELOCITIES; STELLAR POPULATIONS; COMPANIONS;
ISOCHRONES; ABUNDANCES; PARAMETERS; CATALOG
AB We used the Navy Precision Optical Interferometer to measure the limb-darkened angular diameter of the exoplanet host star kappa CrB and obtained a value of 1.543 +/- 0.009 mas. We calculated its physical radius (5.06 +/- 0.04 R-circle dot) and used photometric measurements from the literature with our diameter to determine kappa CrB's effective temperature (4788 +/- 17 K) and luminosity (12.13 +/- 0.09L(circle dot)). We then placed the star on an Hertzsprung-Russell diagram to ascertain the star's age (3.42(-0.25)(+0.32) Gyr) and mass (1.47 +/- 0.04M(circle dot)) using a metallicity of [Fe/H] = + 0.15. With this mass, we calculated the system's mass function with the orbital elements from a variety of sources, which produced a range of planetary masses: m(p) sin i = 1.61-1.88 M-Jup. We also updated the extent of the habitable zone for the system using our new temperature.
C1 [Baines, Ellyn K.; Armstrong, J. Thomas] Naval Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
[van Belle, Gerard T.] Lowell Observ, Flagstaff, AZ 86001 USA.
RP Baines, EK (reprint author), Naval Res Lab, Remote Sensing Div, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM ellyn.baines@nrl.navy.mil
FU Office of Naval Research; Oceanographer of the Navy; National
Aeronautics and Space Administration; National Science Foundation
FX The Navy Precision Optical Interferometer is a joint project of the
Naval Research Laboratory and the U.S. Naval Observatory, in cooperation
with Lowell Observatory, and is funded by the Office of Naval Research
and the Oceanographer of the Navy. This research has made use of the
SIMBAD database, operated at CDS, Strasbourg, France. 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.
NR 27
TC 1
Z9 1
U1 0
U2 2
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 2041-8205
J9 ASTROPHYS J LETT
JI Astrophys. J. Lett.
PD JUL 1
PY 2013
VL 771
IS 1
AR L17
DI 10.1088/2041-8205/771/1/L17
PG 5
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 169WL
UT WOS:000320811300017
ER
PT J
AU Cerruti, M
Dermer, CD
Lott, B
Boisson, C
Zech, A
AF Cerruti, Matteo
Dermer, Charles D.
Lott, Benoit
Boisson, Catherine
Zech, Andreas
TI GAMMA-RAY BLAZARS NEAR EQUIPARTITION AND THE ORIGIN OF THE GeV SPECTRAL
BREAK IN 3C 454.3
SO ASTROPHYSICAL JOURNAL LETTERS
LA English
DT Article
DE galaxies: active; galaxies: individual: 3C454.3; gamma rays: general;
radiation mechanisms: non-thermal
ID ACTIVE GALACTIC NUCLEI; LARGE-AREA TELESCOPE; MULTIWAVELENGTH
OBSERVATIONS; RADIO QUASARS; AGILE DETECTION; 2010 NOVEMBER; 3C-454.3;
OUTBURST; EMISSION; CAMPAIGN
AB Observations performed with the Fermi-LAT telescope have revealed the presence of a spectral break in the GeV spectrum of flat-spectrum radio quasars (FSRQs) and other low-and intermediate-synchrotron peaked blazars. We propose that this feature can be explained by Compton scattering of broad-line region photons by a non-thermal population of electrons described by a log-parabolic function. We consider in particular a scenario in which the energy densities of particles, magnetic field, and soft photons in the emitting region are close to equipartition. We show that this model can satisfactorily account for the overall spectral energy distribution of the FSRQ 3C 454.3, reproducing the GeV spectral cutoff due to Klein-Nishina effects and a curving electron distribution.
C1 [Cerruti, Matteo] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA.
[Cerruti, Matteo; Boisson, Catherine; Zech, Andreas] Univ Paris Diderot, CNRS, LUTII, Observ Paris, F-92190 Meudon, France.
[Dermer, Charles D.] US Naval Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Lott, Benoit] Univ Bordeaux, CENBG, IN2P3, CNRS,UMR 7595, F-33175 Gradignan, France.
RP Cerruti, M (reprint author), Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA.
EM matteo.cerruti@cfa.harvard.edu; charles.dermer@nrl.navy.mil
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.
NR 37
TC 26
Z9 26
U1 1
U2 12
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 JUL 1
PY 2013
VL 771
IS 1
AR L4
DI 10.1088/2041-8205/771/1/L4
PG 5
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 169WL
UT WOS:000320811300004
ER
PT J
AU Makkar, R
Gossl, M
Holmes, DR
AF Makkar, Raj
Goessl, Mario
Holmes, David R., Jr.
TI Foreword
SO CURRENT PROBLEMS IN CARDIOLOGY
LA English
DT Editorial Material
C1 [Makkar, Raj] Cedars Sinai Med Ctr, Intervent Cardiol & Cardiac Catheterizat Lab, Los Angeles, CA 90048 USA.
[Goessl, Mario] Mayo Clin, Div Cardiovasc Dis, Rochester, MN USA.
[Holmes, David R., Jr.] United States Navy, Natl Naval Med Ctr, Bethesda, MD USA.
RP Makkar, R (reprint author), Cedars Sinai Med Ctr, Intervent Cardiol & Cardiac Catheterizat Lab, Los Angeles, CA 90048 USA.
NR 0
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 0146-2806
J9 CURR PROB CARDIOLOGY
JI Curr. Probl. Cardiol.
PD JUL
PY 2013
VL 38
IS 7
BP 243
EP 244
DI 10.1016/j.cpcardiol.2013.04.001
PG 2
WC Cardiac & Cardiovascular Systems
SC Cardiovascular System & Cardiology
GA 172AU
UT WOS:000320973100001
ER
PT J
AU Leski, TA
Bangura, U
Jimmy, DH
Ansumana, R
Lizewski, SE
Li, RW
Stenger, DA
Taitt, CR
Vora, GJ
AF Leski, Tomasz A.
Bangura, Umaru
Jimmy, David H.
Ansumana, Rashid
Lizewski, Stephen E.
Li, Robert W.
Stenger, David A.
Taitt, Chris R.
Vora, Gary J.
TI Identification of bla(OXA-51-like), bla(OXA-58), bla(DIM-1), and
bla(VIM) Carbapenemase Genes in Hospital Enterobacteriaceae Isolates
from Sierra Leone
SO JOURNAL OF CLINICAL MICROBIOLOGY
LA English
DT Article
ID METALLO-BETA-LACTAMASE; ACINETOBACTER-BAUMANNII; MULTIPLEX PCR;
RESISTANCE; SEQUENCES; EMERGENCE; OUTBREAK; ISABA1; RPOB
AB We describe the results of a molecular epidemiological survey of 15 carbapenemase-encoding genes from a recent collection of clinical isolates from Mercy Hospital in Bo, Sierra Leone. The most salient findings revealed that (i) 60% of the isolates harbored multiple carbapenemase genes; (ii) the bla(DIM-1) gene, which has previously only been reported in The Netherlands, is also circulating in this environment; and (iii) bla(OXA-51-like) and bla(OXA-58) genes, which were thought to reside exclusively in Acinetobacter species, can also be found in members of the Enterobacteriaceae.
C1 [Leski, Tomasz A.; Lizewski, Stephen E.; Stenger, David A.; Taitt, Chris R.; Vora, Gary J.] Naval Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 USA.
[Bangura, Umaru; Jimmy, David H.; Ansumana, Rashid] Mercy Hosp, Res Lab, Kulanda Town, Bo, Sierra Leone.
[Jimmy, David H.] Njala Univ, Dept Chem, Njala, Sierra Leone.
[Ansumana, Rashid] Njala Univ, Inst Environm Management & Qual Control, Njala, Sierra Leone.
[Ansumana, Rashid] Univ Liverpool, Liverpool Sch Trop Med, Liverpool L3 5QA, Merseyside, England.
[Li, Robert W.] USDA, Anim & Nat Resources Inst, Bovine Funct Genom Lab, Beltsville, MD 20705 USA.
RP Vora, GJ (reprint author), Naval Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 USA.
EM gary.vora@nrl.navy.mil
RI Leski, Tomasz/K-6916-2013
OI Leski, Tomasz/0000-0001-7688-9887
FU Joint Science and Technology Office, Defense Threat Reduction Agency;
Office of Naval Research via U.S. Naval Research Laboratory
FX This work was supported in part by the Joint Science and Technology
Office, Defense Threat Reduction Agency (D. A. S.), and by the Office of
Naval Research via U.S. Naval Research Laboratory core funds (G.J.V.).
NR 25
TC 11
Z9 11
U1 0
U2 5
PU AMER SOC MICROBIOLOGY
PI WASHINGTON
PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA
SN 0095-1137
J9 J CLIN MICROBIOL
JI J. Clin. Microbiol.
PD JUL
PY 2013
VL 51
IS 7
BP 2435
EP 2438
DI 10.1128/JCM.00832-13
PG 4
WC Microbiology
SC Microbiology
GA 166YB
UT WOS:000320595800069
PM 23658259
ER
PT J
AU Liu, JL
Zabetakis, D
Lee, AB
Goldman, ER
Anderson, GP
AF Liu, Jinny L.
Zabetakis, Dan
Lee, Audrey Brozozog
Goldman, Ellen R.
Anderson, George P.
TI Single domain antibody-alkaline phosphatase fusion proteins for antigen
detection - Analysis of affinity and thermal stability of single domain
antibody
SO JOURNAL OF IMMUNOLOGICAL METHODS
LA English
DT Article
DE Single-domain antibody; Alkaline phosphatase fusion; Thermal stability;
MS2 phage; Circular Dichroism; Surface plasmon resonance
ID EXPRESSION; FRAGMENTS
AB Single domain antibody (sdAb)-alkaline phosphatase (AP) fusion proteins have been demonstrated to be useful immunodiagnostic reagents for bio-threat agent detection. The bivalent nature of sdAb-AP fusion proteins significantly increases effective affinity and thus the sensitivity of detection, but the thermal stability of the fusion protein had not been explored. This property is critical for the development of immunoassays for use in austere environments. In this study four sdAbs with specificity for MS2 phage coat protein (CP) were expressed as fusions with AP in order to evaluate the thermal stability and affinity of the resulting constructs. The melting temperature (Tm) of the sdAb and sdAb-AP fusion proteins was measured by a combination of Circular Dichroism (CD), differential scanning calorimetry (DSC) and Fluorescence-based Thermal Shift assay. Binding kinetics were assessed using surface plasmon resonance (SPR). Our results indicated that the AP fusion protein did not increase the Tm or enhance thermal stability of the sdAb, but did provide the expected increase in binding affinity as compared to the original sdAb. Published by Elsevier B.V.
C1 [Liu, Jinny L.; Zabetakis, Dan; Goldman, Ellen R.; Anderson, George P.] USN, Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 USA.
[Lee, Audrey Brozozog] Nova Res Inc, Alexandria, VA 22308 USA.
RP Liu, JL (reprint author), USN, Res Lab, Ctr Bio Mol Sci & Engn, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM jinny.liu@nrl.navy.mil; george.anderson@nrl.navy.mil
RI Anderson, George/D-2461-2011;
OI Anderson, George/0000-0001-7545-9893; LEE, PAMELA/0000-0002-9341-0759
FU Defense Advance Research Project Agency (DARPA)
FX We thank Drs. James Carney, Jill Czarnicki, and Thomas Obrien for their
generous gift of materials used to complete this work. We would like to
thank Drs Patricia Legler and Stella North for their useful comments on
the manuscript. This work was supported by the Defense Advance Research
Project Agency (DARPA). The opinions expressed here are those of authors
and do not represent those of the US Navy, the US Department of Defense,
or the US government.
NR 16
TC 11
Z9 11
U1 2
U2 39
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0022-1759
J9 J IMMUNOL METHODS
JI J. Immunol. Methods
PD JUL
PY 2013
VL 393
IS 1-2
BP 1
EP 7
DI 10.1016/j.jim.2013.04.001
PG 7
WC Biochemical Research Methods; Immunology
SC Biochemistry & Molecular Biology; Immunology
GA 171EL
UT WOS:000320907800001
PM 23570946
ER
PT J
AU Nootz, G
Hou, W
Dalgleish, FR
Rhodes, WT
AF Nootz, Gero
Hou, Weilin
Dalgleish, Fraser R.
Rhodes, William T.
TI Determination of flow orientation of an optically active turbulent field
by means of a single beam
SO OPTICS LETTERS
LA English
DT Article
ID MOTION
AB The cross-flow orientation of an optically active turbulent field was determined by Fourier transforming the wander of a laser beam propagating in the ocean. A simple physical model for the measured effect is offered, and numerical simulations are performed. The simulations are in good agreement with measurements, validating the assumptions made in the model. (C) 2013 Optical Society of America
C1 [Nootz, Gero; Dalgleish, Fraser R.] Florida Atlantic Univ, Harbor Branch, Ft Pierce, FL 34946 USA.
[Rhodes, William T.] Florida Atlantic Univ, Dept Comp & Elect Engn & Comp Sci, Boca Raton, FL 33431 USA.
[Hou, Weilin] Naval Res Lab, Stennis Space Ctr, MS 39529 USA.
RP Nootz, G (reprint author), Florida Atlantic Univ, Harbor Branch, 5600 US 1, Ft Pierce, FL 34946 USA.
EM gnootz@hboi.fau.edu
NR 10
TC 1
Z9 1
U1 0
U2 2
PU OPTICAL SOC AMER
PI WASHINGTON
PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA
SN 0146-9592
J9 OPT LETT
JI Opt. Lett.
PD JUL 1
PY 2013
VL 38
IS 13
BP 2185
EP 2187
DI 10.1364/OL.38.002185
PG 3
WC Optics
SC Optics
GA 175VU
UT WOS:000321262500009
PM 23811871
ER
PT J
AU Williams, RA
Gatien, G
Hagerty, BM
Kane, M
Otto, L
Wilson, C
Throop, M
AF Williams, Reg Arthur
Gatien, Gary
Hagerty, Bonnie M.
Kane, Michele
Otto, Laureen
Wilson, Candy
Throop, Meryia
TI Addressing Psychosocial Care Using an Interactive Web site for
Combat-Wounded Patients
SO PERSPECTIVES IN PSYCHIATRIC CARE
LA English
DT Article
DE Combat; depression; military nurses; psychosocial; PTSD; stress
ID SOCIAL SUPPORT; DEPRESSION; TRIAL; VALIDITY; PROGRAM; STRESS; HEALTH;
SENSE
AB PURPOSE: The aims were to examine military nurses and combat-wounded patients' evaluation of a cognitive behavioral intervention Web site called Stress Gym. DESIGN AND METHODS: The use of the intervention was a proof-of-concept design with 129 military nurses and combat-wounded patients in military medical treatment facilities (MTFs). The nurses and patients logged on to Stress Gym, reviewed the nine modules available, and completed a short evaluation of the Web site. FINDINGS: The evaluation of the military nurses and patients was high. There were no significant differences in the evaluation based on military services, sex, deployment, and education levels. PRACTICE IMPLICATIONS: The strength of Stress Gym is that it enables all military members to learn about and get help with problems such as stress, anxiety, anger, and depressive symptoms anonymously and in private. CLINICAL RELEVANCE: Stress Gym is a versatile tool that can help nurses address the psychosocial needs of their patients by encouraging its use and including it in treatment protocols.
C1 [Williams, Reg Arthur] Univ Michigan, Sch Med, Sch Nursing & Psychiat, Ann Arbor, MI 48109 USA.
[Gatien, Gary; Hagerty, Bonnie M.] Univ Michigan, Sch Nursing, Ann Arbor, MI 48109 USA.
[Kane, Michele] USN, Walter Reed Natl Mil Med Ctr, Bethesda, MD 20084 USA.
[Otto, Laureen] Brooke Army Med Ctr, San Antonio, TX USA.
[Wilson, Candy] Wilford Hall USAF Med Ctr, San Antonio, TX USA.
[Throop, Meryia] Walter Reed Natl Mil Med Ctr, Bethesda, MD USA.
RP Williams, RA (reprint author), Univ Michigan, Sch Med, Sch Nursing & Psychiat, Ann Arbor, MI 48109 USA.
EM rawill@umich.edu
FU TriService Nursing Research Program, Uniformed Services University of
the Health Sciences; Elsie Andresen Research Fund at University of
Michigan
FX This paper was supported in part by the TriService Nursing Research
Program, Uniformed Services University of the Health Sciences, and Elsie
Andresen Research Fund at University of Michigan; however, the
information or content and conclusions do not necessarily represent the
official position or policy of, nor should any official endorsement be
inferred by, the TriService Nursing Research Program, Uniformed Services
University of the Health Sciences, the Department of Defense, or the
U.S. Government.
NR 33
TC 0
Z9 0
U1 2
U2 9
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0031-5990
J9 PERSPECT PSYCHIATR C
JI Perspect. Psychiatr. Care
PD JUL
PY 2013
VL 49
IS 3
BP 152
EP 161
DI 10.1111/j.1744-6163.2012.00344.x
PG 10
WC Nursing; Psychiatry
SC Nursing; Psychiatry
GA 175AR
UT WOS:000321202000003
PM 23819665
ER
PT J
AU Gompert, DC
AF Gompert, David C.
TI North Korea: Preparing for the End
SO SURVIVAL
LA English
DT Article
C1 [Gompert, David C.] RAND Corp, Santa Monica, CA 90406 USA.
RP Gompert, DC (reprint author), USN Acad, Annapolis, MD 21402 USA.
EM dcgompert@yahoo.com
NR 10
TC 2
Z9 2
U1 1
U2 9
PU ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXFORDSHIRE, ENGLAND
SN 0039-6338
J9 SURVIVAL
JI Survival
PD JUL 1
PY 2013
VL 55
IS 3
BP 21
EP 45
DI 10.1080/00396338.2013.802849
PG 25
WC International Relations; Political Science
SC International Relations; Government & Law
GA 159XW
UT WOS:000320081600002
ER
PT J
AU Mamczak, CN
Malish, D
Boonstra, O
AF Mamczak, Christiaan N.
Malish, Dean
Boonstra, Onno
TI A rare case of paediatric pelvic ring injury with lower urinary tract
obstruction secondary to a combat blast mechanism
SO INJURY-INTERNATIONAL JOURNAL OF THE CARE OF THE INJURED
LA English
DT Article
DE Paediatric pelvic ring injury; Open pelvic fracture; Lower urinary tract
obstruction
ID BLADDER RUPTURE; BLUNT TRAUMA; FRACTURES; CHILDREN; CLASSIFICATION;
DISRUPTIONS
AB Paediatric pelvic ring fractures are rare, and typically the result of high-energy mechanisms that yield other potentially fatal visceral and solid organ injuries. Specific pelvic fracture patterns have been associated with injury to the lower urinary tract, with the most severe involving laceration of the bladder or transection of the urethra. We report a unique case of paediatric pelvic ring disruption causing an isolated obstruction of the lower urinary tract without laceration or discontinuity. Although most paediatric pelvic fractures are managed non-operatively, we postulate that significant ring deformity contributing to urinary retention be considered an indication for open surgical treatment. Published by Elsevier Ltd.
C1 [Mamczak, Christiaan N.; Malish, Dean; Boonstra, Onno] NATO Role 3 Multinatl Med Unit, Kandahar, Afghanistan.
[Mamczak, Christiaan N.] US Navy, Naval Med Ctr Portsmouth, LCDR, Med Corps, Portsmouth, VA USA.
[Malish, Dean] 1 Canadian Field Hosp, MAJ Canadian Armed Forces, Petawawa, ON, Canada.
[Boonstra, Onno] Maasstad Hosp Rotterdam, Dept Surg & Traumatol, CDR Royal Netherlands Navy, Rotterdam, Netherlands.
RP Mamczak, CN (reprint author), Naval Med Ctr Portsmouth, Dept Orthopaed Surg, 620 John Paul Jones Circle, Portsmouth, VA 23708 USA.
EM christiaan.mamczak@med.navy.mil
NR 33
TC 0
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U1 0
U2 4
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0020-1383
EI 1879-0267
J9 INJURY
JI Injury-Int. J. Care Inj.
PD JUL
PY 2013
VL 44
IS 7
BP 983
EP 986
DI 10.1016/j.injury.2013.04.013
PG 4
WC Critical Care Medicine; Emergency Medicine; Orthopedics; Surgery
SC General & Internal Medicine; Emergency Medicine; Orthopedics; Surgery
GA 166XF
UT WOS:000320592500019
PM 23746855
ER
PT J
AU Gehrman, P
Seelig, AD
Jacobson, IG
Boyko, EJ
Hooper, TI
Gackstetter, GD
Ulmer, CS
Smith, TC
AF Gehrman, Philip
Seelig, Amber D.
Jacobson, Isabel G.
Boyko, Edward J.
Hooper, Tomoko I.
Gackstetter, Gary D.
Ulmer, Christi S.
Smith, Tyler C.
CA Millennium Cohort Study Team
TI Predeployment Sleep Duration and Insomnia Symptoms as Risk Factors for
New-Onset Mental Health Disorders Following Military Deployment
SO SLEEP
LA English
DT Article
DE Stress disorders; post-traumatic; anxiety; depression; sleep
ID POSTTRAUMATIC-STRESS-DISORDER; PENN STATE COHORT; MILLENNIUM COHORT;
PSYCHIATRIC-DISORDERS; LONGITUDINAL ASSESSMENT; VIETNAM VETERANS;
YOUNG-ADULTS; PRIMARY-CARE; PRIME-MD; DEPRESSION
AB Study Objectives: To evaluate predeployment sleep duration and insomnia symptoms in relation to the development of mental health symptoms.
Design: Longitudinal cohort study.
Setting: The Millennium Cohort Study survey is administered via a secure website or US mail.
Participants: Data were from 15,204 participants who completed their first deployment between the submissions of 2 consecutive Millennium Cohort questionnaires (2001-2008).
Interventions: N/A.
Measurements and Results: Using self-reported data from the Millennium Cohort Study we evaluated the association of predeployment sleep duration and insomnia symptoms on the development of new-onset mental disorders among deployers. Multivariable logistic regression was used to estimate the odds of developing posttraumatic stress disorder (PTSD), depression, and anxiety, while adjusting for relevant covariates including combat-related trauma. The study outcomes were assessed using validated instruments, including the PTSD checklist-civilian version, and the PRIME-MD Patient Health Questionnaire. We identified 522 people with new-onset PTSD, 151 with anxiety, and 303 with depression following deployment. In adjusted models, combat-related trauma and predeployment insomnia symptoms were significantly associated with higher odds of developing posttraumatic stress disorder, depression, and anxiety postdeployment.
Conclusions: Sleep characteristics, especially insomnia symptoms, are related to the development of mental disorders following military deployments. Assessment of insomnia symptoms predeployment may help to better identify those at highest risk for subsequent adverse mental health outcomes.
C1 [Gehrman, Philip] Univ Penn, Perelman Sch Med, Dept Psychiat, Philadelphia, PA 19104 USA.
[Seelig, Amber D.; Jacobson, Isabel G.; Smith, Tyler C.] Naval Hlth Res Ctr, Dept Deployment Hlth Res, San Diego, CA 92106 USA.
[Boyko, Edward J.] Vet Affairs Puget Sound Hlth Care Syst, Seattle Epidemiol Res & Informat Ctr, Seattle, WA USA.
[Hooper, Tomoko I.] Univ Hlth Sci, Uniformed Serv, Dept Prevent Med & Biometr, Bethesda, MD USA.
[Ulmer, Christi S.] Durham VA, Durham, NC USA.
[Ulmer, Christi S.] Duke Univ, Med Ctr, Durham, NC USA.
[Smith, Tyler C.] Natl Univ Technol, Sch Hlth & Human Serv, Dept Community Hlth, San Diego, CA USA.
[Smith, Tyler C.] Hlth Sci Ctr, San Diego, CA USA.
RP Seelig, AD (reprint author), Naval Hlth Res Ctr, Dept Deployment Hlth Res, 140 Sylvester Rd, San Diego, CA 92106 USA.
EM amber.seelig@med.navy.mil
FU Henry M. Jackson Foundation for the Advancement of Military Medicine,
Rockville, Maryland; Military Operational Medicine Research Program of
the US Army Medical Research and Materiel Command, Fort Detrick,
Maryland; VA Puget Sound Health Care System; VA Career Development Award
[CDA 09-218]; Department of Defense [60002]
FX The authors thank the Millennium Cohort Study participants, without whom
these analyses would not be possible. We thank Scott Seggerman from the
Management Information Division, US Defense Manpower Data Center,
Seaside, California; Michelle LeWark from the Naval Health Research
Center; and all the professionals from the US 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.; The Millennium Cohort Study is
funded through the Military Operational Medicine Research Program of the
US Army Medical Research and Materiel Command, Fort Detrick, Maryland.
VA Puget Sound Health Care System provided support for Dr. Boyko's
involvement in this research. Dr. Ulmer was supported by a VA Career
Development Award (CDA 09-218). The funding organization 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.; This article represents report 12-03, supported by the
Department of Defense, under work unit number 60002. The views expressed
in this work 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 the Air Force, Department of Veterans Affairs,
Department of Defense, or the US Government. Approved for public
release; distribution is unlimited. Human subjects participated in this
study after giving their free and informed consent. This research has
been conducted in compliance with all applicable federal regulations
governing the protection of human subjects in research.
NR 67
TC 34
Z9 36
U1 0
U2 13
PU AMER ACAD SLEEP MEDICINE
PI WESTCHESTER
PA ONE WESTBROOK CORPORATE CTR, STE 920, WESTCHESTER, IL 60154 USA
SN 0161-8105
J9 SLEEP
JI Sleep
PD JUL 1
PY 2013
VL 36
IS 7
BP 1009
EP 1018
DI 10.5665/sleep.2798
PG 10
WC Clinical Neurology; Neurosciences
SC Neurosciences & Neurology
GA 172XG
UT WOS:000321039500010
ER
PT J
AU Park, MS
Kwon, YW
AF Park, Moon Shik
Kwon, Young W.
TI Elastoplastic micromechanics model for multiscale analysis of metal
matrix composite structures
SO COMPUTERS & STRUCTURES
LA English
DT Article
DE Elastoplasticity; Micromechanics; Multiscale analysis; Unit cell; Metal
matrix composite; Laminated composite
ID FIBROUS COMPOSITES; DEFORMATION; PLASTICITY; INTERFACE; STRESS;
PARTICULATE; ALUMINUM; BEHAVIOR; DAMAGE; CELLS
AB An elastoplastic micromechanics model was developed for metal matrix composites reinforced by elastic particles, long or short fibers. The matrix material undergoes elastoplastic deformation. The model is based on a unit cell consisting of multiple subcells representing reinforcing and binding materials, respectively. The model can be implemented for multiscale analysis because it can compute mechanical properties and stresses/strains at both the constituent and composite levels and link them from one level to the other. Residual stresses at the both levels can also be computed with unloading. Elastoplastic analyses of various composites and structures were presented to demonstrate the developed model. Published by Elsevier Ltd.
C1 [Park, Moon Shik] Hannam Univ, Dept Mech Engn, Taejon 306791, South Korea.
[Kwon, Young W.] USN, Postgrad Sch, Dept Mech & Aerosp Engn, Monterey, CA 93943 USA.
RP Kwon, YW (reprint author), USN, Postgrad Sch, Dept Mech & Aerosp Engn, Monterey, CA 93943 USA.
EM ms.park@hnu.kr; ywkwon@nps.edu
FU Hannam University, Korea; Office of Naval Research
FX This work is supported by a 2013 Research Grant from Hannam University,
Korea to the first author, as Office of Naval Research for the second
author.
NR 34
TC 4
Z9 4
U1 1
U2 15
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0045-7949
J9 COMPUT STRUCT
JI Comput. Struct.
PD JUL
PY 2013
VL 123
BP 28
EP 38
DI 10.1016/j.compstruc.2013.03.009
PG 11
WC Computer Science, Interdisciplinary Applications; Engineering, Civil
SC Computer Science; Engineering
GA 165JB
UT WOS:000320478700003
ER
PT J
AU Hong, SK
Taddese, BT
Drikas, ZB
Anlage, SM
Andreadis, TD
AF Hong, Sun K.
Taddese, Biniyam T.
Drikas, Zachary B.
Anlage, Steven M.
Andreadis, Tim D.
TI Focusing an arbitrary RF pulse at a distance using time-reversal
techniques
SO JOURNAL OF ELECTROMAGNETIC WAVES AND APPLICATIONS
LA English
DT Article
ID MIRROR
AB In this paper, we demonstrate the use of a time reversal (TR) technique to effectively focus an arbitrary RF pulse at a remote location from a single-feed aperture for directed energy applications. The TR focusing is achieved by backing the aperture with a reverberating cavity, whose multipath environment enables the reconstruction of the aperture field distribution needed for directing the energy to the target location. Here, we use the impulse response between the target location and the time-reversal mirror (TRM) located inside the cavity to enable the effective transmission of arbitrary RF pulses, which are convolved with the time-reversed impulse response before transmission. The demonstration is carried out both numerically and experimentally for various RF pulses. The results show good temporal and spatial focusing at the target location. This approach could be an efficient selective beamforming method for directed energy, where it only requires a single feed and the impulse response between the TRM and target location or direction to effectively deliver an RF pulse of choice within an ultra-wide bandwidth of the impulse response.
C1 [Hong, Sun K.; Drikas, Zachary B.; Andreadis, Tim D.] USN, HPM Sect, Res Lab, Washington, DC 20375 USA.
[Taddese, Biniyam T.; Anlage, Steven M.] Univ Maryland, Dept Phys, College Pk, MD 20742 USA.
RP Hong, SK (reprint author), USN, HPM Sect, Res Lab, Washington, DC 20375 USA.
EM NRL5745@nrl.navy.mil
RI Hong, Sun/E-9597-2014
OI Hong, Sun/0000-0003-4417-8727
NR 23
TC 7
Z9 8
U1 3
U2 21
PU TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
SN 0920-5071
J9 J ELECTROMAGNET WAVE
JI J. Electromagn. Waves Appl.
PD JUL 1
PY 2013
VL 27
IS 10
BP 1262
EP 1275
DI 10.1080/09205071.2013.805310
PG 14
WC Engineering, Electrical & Electronic; Physics, Applied
SC Engineering; Physics
GA 165QS
UT WOS:000320499000007
ER
PT J
AU Loeffler, G
Craig, C
AF Loeffler, George
Craig, Cassandra
TI The effect of legal bans on poison control center contacts regarding
'legal highs'
SO ADDICTION
LA English
DT Letter
C1 [Loeffler, George] USN, Dept Mental Hlth, San Diego Med Ctr, San Diego, CA 92134 USA.
[Craig, Cassandra] Uniformed Serv Univ Hlth Sci, Bethesda, MD 20814 USA.
RP Loeffler, G (reprint author), USN, Dept Mental Hlth, San Diego Med Ctr, 34800 Bob Wilson Dr, San Diego, CA 92134 USA.
EM george.loeffler@med.navy.mil
NR 4
TC 4
Z9 4
U1 0
U2 6
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0965-2140
J9 ADDICTION
JI Addiction
PD JUL
PY 2013
VL 108
IS 7
BP 1348
EP 1349
DI 10.1111/add.12194
PG 2
WC Substance Abuse; Psychiatry
SC Substance Abuse; Psychiatry
GA 160LG
UT WOS:000320120400029
PM 23617711
ER
EF