FN Thomson Reuters Web of Science™
VR 1.0
PT J
AU Knaff, JA
Sampson, CR
AF Knaff, John A.
Sampson, Charles R.
TI After a Decade Are Atlantic Tropical Cyclone Gale Force Wind Radii
Forecasts Now Skillful?
SO WEATHER AND FORECASTING
LA English
DT Article
ID IMPROVEMENTS; SYSTEM
AB The National Hurricane Center (NHC) has a long history of forecasting the radial extent of gale force or 34-knot (kt; where 1 kt = 0.51 m s(-1)) winds for tropical cyclones in their area of responsibility. These are referred to collectively as gale force wind radii forecasts. These forecasts are generated as part of the 6-hourly advisory messages made available to the public. In 2004, NHC began a routine of postanalysis or "best tracking" of gale force wind radii that continues to this day. At approximately the same time, a statistical wind radii forecast, based solely on climatology and persistence, was implemented so that NHC all-wind radii forecasts could be evaluated for skill. This statistical wind radii baseline forecast is also currently used in several applications as a substitute for or to augment NHC wind radii forecasts. This investigation examines the performance of NHC gale force wind radii forecasts in the North Atlantic over the last decade. Results presented within indicate that NHC's gale force wind radii forecasts have increased in skill relative to the best tracks by several measures, and now significantly outperform statistical wind radii baseline forecasts. These results indicate that it may be time to reinvestigate whether applications that depend on wind radii forecast information can be improved through better use of NHC wind radii forecast information.
C1 [Knaff, John A.] NOAA, Ctr Satellite Applicat & Res, Ft Collins, CO USA.
[Sampson, Charles R.] Naval Res Lab, Monterey, CA USA.
RP Knaff, JA (reprint author), Colorado State Univ, NOAA, NESDIS, CIRA, Campus Delivery 1375, Ft Collins, CO 80523 USA.
EM john.knaff@noaa.gov
RI Knaff, John /F-5599-2010
OI Knaff, John /0000-0003-0427-1409
FU Office of Naval Research
FX The authors would like to acknowledge the staff at the National
Hurricane Center for their diligence in 10 years of best tracking the
wind radii, and also Ann Schrader and Mike Frost for helping to make
that process a bit easier. We also acknowledge the Office of Naval
Research for funding efforts to improve tropical cyclone intensity
forecasting. We thank Jack Dostalek and Kate Musgrave of CIRA and James
Franklin of NHC for comments on the initial manuscript. Further
improvements were also inspired by comments from the two anonymous
reviewers. The views, opinions, and findings contained in this report
are those of the authors and should not be construed as an official
National Oceanic and Atmospheric Administration or U.S. government
position, policy, or decision.
NR 19
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Z9 7
U1 0
U2 2
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 JUN
PY 2015
VL 30
IS 3
BP 702
EP 709
DI 10.1175/WAF-D-14-00149.1
PG 8
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA CJ7FG
UT WOS:000355659300012
ER
PT J
AU Drew, B
Bennett, BL
Littlejohn, L
AF Drew, Brendon
Bennett, Brad L.
Littlejohn, Lanny
TI Application of Current Hemorrhage Control Techniques for Backcountry
Care: Part One, Tourniquets and Hemorrhage Control Adjuncts
SO WILDERNESS & ENVIRONMENTAL MEDICINE
LA English
DT Review
DE hemorrhage; hemostasis; tourniquet; trauma; prehospital; hemostatic
agents; topical; dressing; bandage
ID AFGHANISTAN COMBAT ENVIRONMENT; LOWER-LIMB HEMORRHAGE; TRAUMA;
BATTLEFIELD; DRESSINGS; EFFICACY; DEATH
AB Decade-long advancements in battlefield medicine have revolutionized the treatment of traumatic hemorrhage and have led to a significant reduction in mortality. Older methods such as limb elevation and pressure points are no longer recommended. Tourniquets have had a profound effect on lives saved without the commonly feared safety issues that have made them controversial. Unique tourniquet designs for inguinal and abdominal regions are now available for areas not amenable to current fielded extremity tourniquets. This article, the first of two parts, reviews the literature for advancements in prehospital hemorrhage control for any provider in the austere setting. It emphasizes the significant evidence-based advances in tourniquet use on the extremities that have occurred in battlefield trauma medicine since 2001 and reviews the newer junctional tourniquet devices. Recommendations are made for equipment and techniques for controlling hemorrhage in the wilderness setting.
C1 [Drew, Brendon] Naval Med Ctr San Diego, Dept Emergency Med, San Diego, CA USA.
[Bennett, Brad L.] Uniformed Serv Univ Hlth Sci, F Edward Hebert Sch Med, Mil & Emergency Med Dept, Bethesda, MD 20814 USA.
[Littlejohn, Lanny] Naval Med Ctr Portsmouth, Dept Emergency Med, Portsmouth, VA USA.
RP Bennett, BL (reprint author), POB 235, Bena, VA 23018 USA.
EM brad@wms.org
NR 57
TC 2
Z9 2
U1 3
U2 5
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 1080-6032
EI 1545-1534
J9 WILD ENVIRON MED
JI Wildern. Environ. Med.
PD JUN
PY 2015
VL 26
IS 2
BP 236
EP 245
PG 10
WC Public, Environmental & Occupational Health; Sport Sciences
SC Public, Environmental & Occupational Health; Sport Sciences
GA CJ8UL
UT WOS:000355778900021
PM 25704875
ER
PT J
AU Littlejohn, L
Bennett, BL
Drew, B
AF Littlejohn, Lanny
Bennett, Brad L.
Drew, Brendon
TI Application of Current Hemorrhage Control Techniques for Backcountry
Care: Part Two, Hemostatic Dressings and Other Adjuncts
SO WILDERNESS & ENVIRONMENTAL MEDICINE
LA English
DT Review
DE hemorrhage; hemostasis; trauma; prehospital; hemostatic agents; topical;
dressing; bandage
ID CIRCUMFERENTIAL COMPRESSION DEVICES; EXTREMITY ARTERIAL HEMORRHAGE;
RANDOMIZED CONTROLLED-TRIAL; TRANEXAMIC ACID; PELVIC FRACTURES; COMBAT
OPERATIONS; TRAUMA PATIENTS; AGENT QUIKCLOT; CASE SERIES; BLOOD-LOSS
AB Decade-long advances in battlefield medicine have revolutionized the treatment of traumatic hemorrhage and have led to a significant reduction in mortality. Part one of this review covered the use of tourniquets on the extremities and the newer devices for use in junctional areas. Part two focuses on the use of hemostatic agents or dressings, pelvic binders, and tranexamic acid. Field applicable hemostatic dressings are safe and effective in controlling hemorrhage not amenable to extremity tourniquet application, and newer agents with increasing efficacy continue to be developed. Most of these agents are inexpensive and lightweight, making them ideal products for use in wilderness medicine. The use of pelvic binders to stabilize suspected pelvic fractures has gained new interest as these products are developed and refined, and the prehospital use of tranexamic acid, a potent antifibrinolytic, has been found to be life saving in patients at risk of death from severe hemorrhage. Recommendations are made for equipment and techniques for controlling hemorrhage in the wilderness setting.
C1 [Littlejohn, Lanny] Naval Med Ctr Portsmouth, Dept Emergency Med, Portsmouth, VA USA.
[Bennett, Brad L.] Uniformed Serv Univ Hlth Sci, F Edward Hebert Sch Med, Mil & Emergency Med Dept, Bethesda, MD 20814 USA.
[Drew, Brendon] Naval Med Ctr San Diego, Dept Emergency Med, San Diego, CA USA.
RP Bennett, BL (reprint author), POB 235, Bena, VA 23018 USA.
EM brad@wms.org
NR 50
TC 3
Z9 3
U1 3
U2 6
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 1080-6032
EI 1545-1534
J9 WILD ENVIRON MED
JI Wildern. Environ. Med.
PD JUN
PY 2015
VL 26
IS 2
BP 246
EP 254
PG 9
WC Public, Environmental & Occupational Health; Sport Sciences
SC Public, Environmental & Occupational Health; Sport Sciences
GA CJ8UL
UT WOS:000355778900022
PM 25704877
ER
PT J
AU Brock, WW
Carter, B
Cunningham, CA
Sribanditmongkol, V
Brandon, DH
Thompson, J
Hoehn, V
AF Brock, Whitney W.
Carter, Brigit
Cunningham, Craig A.
Sribanditmongkol, Vorachai
Brandon, Debra H.
Thompson, Julie
Hoehn, Valerie
TI Milk Technicians in the Neonatal Intensive Care Unit: A Quality
Improvement Initiative for the Preparation of Enteral Nutrition
SO ADVANCES IN NEONATAL CARE
LA English
DT Meeting Abstract
C1 [Brock, Whitney W.; Carter, Brigit; Brandon, Debra H.; Thompson, Julie] Duke Univ, Sch Nursing, Durham, NC 27710 USA.
[Cunningham, Craig A.; Sribanditmongkol, Vorachai; Hoehn, Valerie] Naval Med Ctr Portsmouth, Nursing Res Dept, Portsmouth, VA USA.
EM whitneybrock715@gmail.com
NR 0
TC 0
Z9 0
U1 1
U2 3
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA TWO COMMERCE SQ, 2001 MARKET ST, PHILADELPHIA, PA 19103 USA
SN 1536-0903
EI 1536-0911
J9 ADV NEONAT CARE
JI Adv. Neonatal Care
PD JUN
PY 2015
VL 15
IS 3
BP E5
EP E6
DI 10.1097/ANC.0000000000000181
PG 2
WC Nursing
SC Nursing
GA CJ2JF
UT WOS:000355309600006
ER
PT J
AU Guo, LW
Lu, WJ
Bennett, BR
Boos, JB
del Alamo, JA
AF Guo, Luke W.
Lu, Wenjie
Bennett, Brian R.
Boos, John Brad
del Alamo, Jesus A.
TI Ultralow Resistance Ohmic Contacts for p-Channel InGaSb Field-Effect
Transistors
SO IEEE ELECTRON DEVICE LETTERS
LA English
DT Article
DE Antimonide; nano contacts; TLM; contact resistivity; quantum-well FET;
nano-TLM
ID SOURCE/DRAIN; MOSFETS; INAS
AB We demonstrate ultralow ohmic contact resistance to antimonide-based, p-channel quantum-well field-effect transistor (QW-FET) structures using a new p(+)-InAs/InAsSb cap structure. The incorporation of a p(+)-InAsSb layer enables the use of a thicker cap with lower sheet resistance, resulting in an improved contact resistivity. Using a Pd-based ohmic scheme, the composite cap structure resulted in a 4x reduction in contact resistance compared with a standard p(+)-InAs cap. This translates into nearly 3x improvement in the g(m) of fabricated InGaSb p-channel QW-FETs. Furthermore, Ni contacts on the composite cap were fabricated and a contact resistance of 45 Omega center dot mu m was obtained. An accurate contact resistivity extraction in this very low range is possible through nanotransmission line models with sub-100 nm contacts. In devices of this kind with Ni-based contacts, we derive an ultralow contact resistivity of 5.2 center dot 10-8 Omega center dot cm(2).
C1 [Guo, Luke W.; Lu, Wenjie; del Alamo, Jesus A.] MIT, Microsyst Technol Labs, Cambridge, MA 02139 USA.
[Bennett, Brian R.; Boos, John Brad] US Naval Res Lab, Elect Sci & Technol Div, Washington, DC 20375 USA.
RP Guo, LW (reprint author), MIT, Microsyst Technol Labs, Cambridge, MA 02139 USA.
EM wenjie@mit.edu
RI Bennett, Brian/A-8850-2008
OI Bennett, Brian/0000-0002-2437-4213
FU Samsung; Intel Corporation
FX This work was supported by Samsung and Intel Corporation. The review of
this letter was arranged by Editor R. Quay.
NR 20
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Z9 2
U1 1
U2 10
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0741-3106
EI 1558-0563
J9 IEEE ELECTR DEVICE L
JI IEEE Electron Device Lett.
PD JUN
PY 2015
VL 36
IS 6
BP 546
EP 548
DI 10.1109/LED.2015.2421337
PG 3
WC Engineering, Electrical & Electronic
SC Engineering
GA CJ1OE
UT WOS:000355252300006
ER
PT J
AU Ita, EE
AF Ita, Eyo Eyo, III
TI Four-dimensional gravity as an almost-Poisson system
SO INTERNATIONAL JOURNAL OF MODERN PHYSICS D
LA English
DT Article
DE Almost-Poisson; symplectic; Instanton representation; constraint
AB In this paper, we examine the phase space structure of a noncanonical formulation of four-dimensional gravity referred to as the Instanton representation of Plebanski gravity (IRPG). The typical Hamiltonian (symplectic) approach leads to an obstruction to the definition of a symplectic structure on the full phase space of the IRPG. We circumvent this obstruction, using the Lagrange equations of motion, to find the appropriate generalization of the Poisson bracket. It is shown that the IRPG does not support a Poisson bracket except on the vector constraint surface. Yet there exists a fundamental bilinear operation on its phase space which produces the correct equations of motion and induces the correct transformation properties of the basic fields. This bilinear operation is known as the almost-Poisson bracket, which fails to satisfy the Jacobi identity and in this case also the condition of antisymmetry. We place these results into the overall context of nonsymplectic systems.
C1 US Naval Acad, Dept Phys, Annapolis, MD 21402 USA.
RP Ita, EE (reprint author), US Naval Acad, Dept Phys, Annapolis, MD 21402 USA.
EM ita@usna.edu
NR 17
TC 0
Z9 0
U1 0
U2 0
PU WORLD SCIENTIFIC PUBL CO PTE LTD
PI SINGAPORE
PA 5 TOH TUCK LINK, SINGAPORE 596224, SINGAPORE
SN 0218-2718
EI 1793-6594
J9 INT J MOD PHYS D
JI Int. J. Mod. Phys. D
PD JUN
PY 2015
VL 24
IS 7
AR 1550047
DI 10.1142/S0218271815500479
PG 19
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA CJ2PO
UT WOS:000355327200004
ER
PT J
AU Warn-Varnas, A
Ko, DS
Gangopadhyay, A
AF Warn-Varnas, Alex
Ko, Dong S.
Gangopadhyay, Avijit
TI Signatures of tidal interference patterns in the South China Sea
SO JOURNAL OF OCEANOGRAPHY
LA English
DT Article
DE Tidal interference pattern; South China Sea; Internal tide; Luzon Strait
Nowcast/Forecast System (LZSNFS); Linear knife-edge model
ID INTERNAL SOLITARY WAVES; LUZON STRAIT; GENERATION; TIDES; PROPAGATION;
PREDICTION; RIDGE; MODEL
AB The formation of arc-type structures in the surface elevation and temperature fields due to internal tidal (IT) waves is studied in the region of the South China Sea (SCS) and Luzon Strait. It is demonstrated that these arc-type structures in the surface elevation and temperature at depth result from the merging of IT waves. Predictions of internal baroclinic tides are conducted with a nonlinear hydrostatic model, the Luzon Strait Nowcast/Forecast System, forced with tides, realistic surface forcing and stratification (Appendix 1). It is shown that IT waves generated by the undersea ridges near the Batan and Babuyan Islands in the Luzon Strait propagate westward and merge into arcs in the SCS. The superposition of IT waves is also investigated with a linear knife-edge model (Appendix 2). M-2 and K-1 tidal waves are considered. It is demonstrated that K-1, M-2 tidal waves from the Babuyan Islands combine with waves from the Batan Islands to form arc signatures in sea surface elevation and warm spots in the South China Sea. Possible modulation effects of K-1 waves on M-2 waves are shown. Dynamics of the nonlinear hydrostatic model shape the arc segments differently from the linear model. Arc lengths increase from the sources in nonlinear and linear models. The model-predicted merged IT waves are compared with SAR images.
C1 [Warn-Varnas, Alex] Jacobs Technol Inc, Stennis Space Ctr, MS 39529 USA.
[Warn-Varnas, Alex; Gangopadhyay, Avijit] Univ Massachusetts Dartmouth, Dept Estuarine & Ocean Sci, Dartmouth, MA 02747 USA.
[Ko, Dong S.] Naval Res Lab, Stennis Space Ctr, MS 39529 USA.
RP Ko, DS (reprint author), Naval Res Lab, Stennis Space Ctr, MS 39529 USA.
EM ko@nrlssc.navy.mil
FU Office of Naval Research [PE62435N, N00014-05WX-2-0647]
FX The work was supported by the Office of Naval Research under PE62435N
for AWV and N00014-05WX-2-0647 for DSK, with technical management
provided by the Naval Research Laboratory. We thank Gretchen Dawson and
Paul Martin for the early NCOM predictions and analysis. Helpful
comments from two anonymous reviewers are appreciated.
NR 33
TC 0
Z9 0
U1 2
U2 7
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0916-8370
EI 1573-868X
J9 J OCEANOGR
JI J. Oceanogr.
PD JUN
PY 2015
VL 71
IS 3
BP 251
EP 262
DI 10.1007/s10872-015-0282-8
PG 12
WC Oceanography
SC Oceanography
GA CJ0QF
UT WOS:000355181400003
ER
PT J
AU Lim, TW
AF Lim, Tae W.
TI Point cloud modeling using the homogeneous transformation for
non-cooperative pose estimation
SO ACTA ASTRONAUTICA
LA English
DT Article
DE Non-cooperative pose estimation; Homogeneous transformation; Point cloud
modeling; Flash lidar; Proximity operation
ID ATTITUDE ESTIMATION; RELATIVE POSITION; SPACECRAFT; DOCKING
AB A modeling process to simulate point cloud range data that a lidar (light detection and ranging) sensor produces is presented in this paper in order to support the development of non-cooperative pose (relative attitude and position) estimation approaches which will help improve proximity operation capabilities between two adjacent vehicles. The algorithms in the modeling process were based on the homogeneous transformation, which has been employed extensively in robotics and computer graphics, as well as in recently developed pose estimation algorithms. Using a flash lidar in a laboratory testing environment, point cloud data of a test article was simulated and compared against the "measured point cloud data. The simulated and measured data sets match closely, validating the modeling process. The modeling capability enables close examination of the characteristics of point cloud images of an object as it undergoes various translational and rotational motions. Relevant characteristics that will be crucial in non-cooperative pose estimation were identified such as shift, shadowing, perspective projection, jagged edges, and differential point cloud density. These characteristics will have to be considered in developing effective non-cooperative pose estimation algorithms. The modeling capability will allow extensive non-cooperative pose estimation performance simulations prior to field testing, saving development cost and providing performance metrics of the pose estimation concepts and algorithms under evaluation. The modeling process also provides "truth" pose of the test objects with respect to the sensor frame so that the pose estimation error can be quantified. Published by Elsevier Ltd. on behalf of IAA.
C1 US Naval Acad, Dept Aerosp Engn, Annapolis, MD 21402 USA.
RP Lim, TW (reprint author), US Naval Acad, Dept Aerosp Engn, 590 Holloway Rd, Annapolis, MD 21402 USA.
EM lim@usna.edu
FU Naval Academy Research Council; Office of the Naval Research
FX This research is supported by the Naval Academy Research Council and the
Office of the Naval Research.
NR 27
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Z9 4
U1 0
U2 14
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0094-5765
EI 1879-2030
J9 ACTA ASTRONAUT
JI Acta Astronaut.
PD JUN-JUL
PY 2015
VL 111
BP 61
EP 76
DI 10.1016/j.actaastro.2015.02.002
PG 16
WC Engineering, Aerospace
SC Engineering
GA CI2NY
UT WOS:000354585500006
ER
PT J
AU Baggenstoss, PM
AF Baggenstoss, Paul M.
TI Maximum Entropy PDF Design Using Feature Density Constraints:
Applications in Signal Processing
SO IEEE TRANSACTIONS ON SIGNAL PROCESSING
LA English
DT Article
DE Maximum entropy; statistical learning; statistical distributions; PDF
estimation
ID CLASSIFICATION; THEOREM
AB This paper revisits an existing method of constructing high-dimensional probability density functions (PDFs) based on the PDF at the output of a dimension-reducing feature transformation. We show how to modify the method so that it can provide the PDF with the highest entropy among all PDFs that generate the given low-dimensional PDF. The method is completely general and applies to arbitrary feature transformations. The chain-rule is described for multi-stage feature calculations typically used in signal processing. Examples are given including MFCC and auto-regressive features. Experimental verification of the results using simulated data is provided including a comparison with competing generative methods.
C1 Naval Undersea Warfare Ctr, Newport, RI 02840 USA.
RP Baggenstoss, PM (reprint author), Naval Undersea Warfare Ctr, Newport, RI 02840 USA.
EM p.m.baggenstoss@ieee.org
FU Naval Udersea Warcere Center, Newport, RI
FX This work was partially funded by internal research grant by the Naval
Udersea Warcere Center, Newport, RI.
NR 25
TC 4
Z9 4
U1 0
U2 7
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1053-587X
EI 1941-0476
J9 IEEE T SIGNAL PROCES
JI IEEE Trans. Signal Process.
PD JUN 1
PY 2015
VL 63
IS 11
BP 2815
EP 2825
DI 10.1109/TSP.2015.2419189
PG 11
WC Engineering, Electrical & Electronic
SC Engineering
GA CH9UO
UT WOS:000354382100007
ER
PT J
AU Patzold, M
Sibille, A
Wong, K
Zajic, A
AF Patzold, Matthias
Sibille, Alain
Wong, KainamThomas
Zajic, Alenka
TI The State of the Art in Propagation and Mobile Channel Modeling
SO IEEE VEHICULAR TECHNOLOGY MAGAZINE
LA English
DT Editorial Material
C1 [Patzold, Matthias] Ant Nachrichtentech GmbH, Digital Satellite Commun, Backnang, Germany.
[Patzold, Matthias] Tech Univ Hamburg, Dept Digital Networks, Hamburg, Germany.
[Patzold, Matthias] Univ Agder, Mobile Commun, Grimstad, Norway.
[Sibille, Alain] France Telecom R&D, Paris, France.
[Sibille, Alain] ENS TA ParisTech, Elect & Comp Engn Dept, Paris, France.
[Wong, KainamThomas] Gen Motors Tech Ctr, Warren, MI USA.
[Wong, KainamThomas] Hong Kong Polytech Univ, Hong Kong, Hong Kong, Peoples R China.
[Zajic, Alenka] Naval Res Lab, Washington, DC 20375 USA.
[Zajic, Alenka] Skyworks Solut Inc, Woburn, MA USA.
RP Patzold, M (reprint author), Univ Agder, Mobile Commun, Grimstad, Norway.
EM matthias.paetzold@uia.no; ktwong@ieee.org
NR 0
TC 0
Z9 0
U1 1
U2 3
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1556-6072
EI 1556-6080
J9 IEEE VEH TECHNOL MAG
JI IEEE Veh. Technol. Mag.
PD JUN
PY 2015
VL 10
IS 2
BP 26
EP 103
DI 10.1109/MVT.2015.2412192
PG 3
WC Engineering, Electrical & Electronic; Telecommunications; Transportation
Science & Technology
SC Engineering; Telecommunications; Transportation
GA CI6JV
UT WOS:000354866100005
ER
PT J
AU Lambrakos, SG
Shabaev, A
Huang, L
AF Lambrakos, S. G.
Shabaev, A.
Huang, L.
TI Inverse Thermal Analysis of Titanium GTA Welds Using Multiple
Constraints
SO JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
LA English
DT Article
DE joining; modeling and simulation; thermal analysis; welding
ID FLUID-FLOW; GENETIC ALGORITHM; HEAT; OPTIMIZATION; PARAMETERS; TI-6AL-4V
AB Inverse thermal analysis of titanium gas-tungsten-arc welds using multiple constraint conditions is presented. This analysis employs a methodology that is in terms of numerical-analytical basis functions for inverse thermal analysis of steady-state energy deposition in plate structures. The results of this type of 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. The present study applies an inverse thermal analysis procedure that provides for the inclusion of constraint conditions associated with both solidification and phase transformation boundaries.
C1 [Lambrakos, S. G.; Huang, L.] Naval Res Lab, Ctr Computat Mat, Mat Sci & Technol Div, Washington, DC 20375 USA.
[Shabaev, A.] George Mason Univ, Fairfax, VA 22030 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 work was supported by a Naval Research Laboratory (NRL) internal
core program.
NR 28
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Z9 3
U1 1
U2 4
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1059-9495
EI 1544-1024
J9 J MATER ENG PERFORM
JI J. Mater. Eng. Perform.
PD JUN
PY 2015
VL 24
IS 6
SI SI
BP 2401
EP 2411
DI 10.1007/s11665-015-1511-4
PG 11
WC Materials Science, Multidisciplinary
SC Materials Science
GA CI6SF
UT WOS:000354890800030
ER
PT J
AU Eckermann, SD
Ma, J
Broutman, D
AF Eckermann, Stephen D.
Ma, Jun
Broutman, Dave
TI Effects of Horizontal Geometrical Spreading on the Parameterization of
Orographic Gravity Wave Drag. Part I: Numerical Transform Solutions
SO JOURNAL OF THE ATMOSPHERIC SCIENCES
LA English
DT Article
ID OFFICE UNIFIED MODEL; MIDDLE ATMOSPHERE; ANISOTROPIC OROGRAPHY;
GENERAL-CIRCULATION; HYDROSTATIC FLOW; MOMENTUM FLUXES; PARAMETRIZATION;
IMPROVEMENTS; SENSITIVITY; FORMULATION
AB Numerical transform solutions for hydrostatic gravity waves generated by both uniform and sheared flow over elliptical obstacles are used to quantify effects of horizontal geometrical spreading on amplitude evolution with height. Both vertical displacement and steepness amplitudes are considered because of their close connections to drag parameterizations in weather and climate models. Novel diagnostics quantify the location and value of the largest wavefield amplitudes most likely to break at each altitude. These horizontal locations do not stray far from the obstacle peak even at high altitudes. Resulting vertical profiles of wave amplitude are normalized to remove density and refraction effects, thereby quantifying the horizontal geometrical spreading contribution, currently absent from parameterizations. Horizontal geometrical spreading produces monotonic amplitude decreases with height through wave-action conservation as waves propagate into progressively larger horizontal areas. Accumulated amplitude reductions are appreciable for all but the most quasi-two-dimensional obstacles with long axes orthogonal to the flow, and even these are impacted appreciably if the obstacle is rotated by more than 20 degrees-30 degrees. Profiles are insensitive to the obstacle's functional form but vary strongly in response to changes in its horizontal aspect ratio. Responses to background winds are captured by a vertical coordinate transformation that remaps profiles to a universal form for a given obstacle. These results show that horizontal geometrical spreading has comparable or larger effects on wave amplitudes as the refraction of vertical wavenumbers and thus is important for accurate parameterizations of wave breaking and drag.
C1 [Eckermann, Stephen D.] Naval Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Ma, Jun; Broutman, Dave] Computat Phys Inc, Springfield, VA USA.
RP Eckermann, SD (reprint author), Naval Res Lab, Geospace Sci & Technol Branch, Div Space Sci, Code 7631,4555 Overlook Ave SW, Washington, DC 20375 USA.
EM stephen.eckermann@nrl.navy.mil
FU Office of Naval Research (ONR) through the NRL 6.1 Accelerated Research
Initiative "The Boundary Paradox"; ONR's Departmental Research
Initiative "Unified Physical Parameterizations for Seasonal Prediction";
DoD High Performance Computing Modernization Program at the Navy DoD
Supercomputing Resource Center
FX This research was supported by the Office of Naval Research (ONR)
through the NRL 6.1 Accelerated Research Initiative "The Boundary
Paradox," by ONR's Departmental Research Initiative "Unified Physical
Parameterizations for Seasonal Prediction," and in part by a grant of
computer time from the DoD High Performance Computing Modernization
Program at the Navy DoD Supercomputing Resource Center.
NR 34
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U1 0
U2 5
PU AMER METEOROLOGICAL SOC
PI BOSTON
PA 45 BEACON ST, BOSTON, MA 02108-3693 USA
SN 0022-4928
EI 1520-0469
J9 J ATMOS SCI
JI J. Atmos. Sci.
PD JUN
PY 2015
VL 72
IS 6
BP 2330
EP 2347
DI 10.1175/JAS-D-14-0147.1
PG 18
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA CI9RW
UT WOS:000355108500009
ER
PT J
AU Eckermann, SD
Broutman, D
Knight, H
AF Eckermann, Stephen D.
Broutman, Dave
Knight, Harold
TI Effects of Horizontal Geometrical Spreading on the Parameterization of
Orographic Gravity Wave Drag. Part II: Analytical Solutions
SO JOURNAL OF THE ATMOSPHERIC SCIENCES
LA English
DT Article
ID MIDDLE ATMOSPHERE; GENERAL-CIRCULATION; MOMENTUM FLUXES; MOUNTAIN WAVES;
MODEL; FLOW; PARAMETRIZATION; IMPROVEMENTS; SENSITIVITY; FORMULATION
AB Effects of horizontal geometrical spreading on the amplitude variation with height of linear three-dimensional hydrostatic orographic gravity waves (OGWs) are quantified via relevant simplifications to the governing transform relations, leading to analytical solutions. The analysis is restricted to elliptical Gaussian obstacles with principal axes aligned parallel and perpendicular to unidirectional shear flow and to vertical displacement and steepness amplitudes, given their relevance to OGW drag parameterizations in global models. Two solutions are derived: a "small l" solution in which horizontal wavenumbers l orthogonal to the flow are taken to be much smaller than those parallel to the flow, and a "single k" solution in which horizontal wavenumbers k parallel to the flow have a single mean value. The resulting analytical relations, valid for arbitrary vertical profiles of upstream winds and stability, depend only on the obstacle's elliptical aspect ratio beta and a normalized height coordinate incorporating wind and stability variations. These analytical approximations accurately reproduce the salient features of the exact numerical transform solutions. These include monotonic decreases with height that asymptotically approach z(-1/2) forms at large z and strong beta dependence in amplitude diminution with height. Steepness singularities close to the surface are shown to be a mathematical consequence of the Hilbert transform approach to deriving complex wavefield solutions. These approximate analytical solutions for horizontal geometrical spreading effects on wave amplitude highlight the importance of this missing physics for current parameterizations of OGW drag and offer an accurate and efficient means of incorporating some of these omitted effects.
C1 [Eckermann, Stephen D.] Naval Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Broutman, Dave; Knight, Harold] Computat Phys Inc, Springfield, VA USA.
RP Eckermann, SD (reprint author), Naval Res Lab, Div Space Sci, Geospace Sci & Technol Branch, Code 7631,4555 Overlook Ave SW, Washington, DC 20375 USA.
EM stephen.eckermann@nrl.navy.mil
FU Office of Naval Research (ONR) via the Departmental Research Initiative
"Unified Physical Parameterizations for Seasonal Prediction"
FX This research was supported by the Office of Naval Research (ONR) via
the Departmental Research Initiative "Unified Physical Parameterizations
for Seasonal Prediction" and by the Chief of Naval Research via the
Naval Research Laboratory (NRL) 6.1 Accelerated Research Initiative "The
Boundary Paradox."
NR 25
TC 3
Z9 3
U1 2
U2 4
PU AMER METEOROLOGICAL SOC
PI BOSTON
PA 45 BEACON ST, BOSTON, MA 02108-3693 USA
SN 0022-4928
EI 1520-0469
J9 J ATMOS SCI
JI J. Atmos. Sci.
PD JUN
PY 2015
VL 72
IS 6
BP 2348
EP 2365
DI 10.1175/JAS-D-14-0148.1
PG 18
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA CI9RW
UT WOS:000355108500010
ER
PT J
AU McCormack, JP
Eckermann, SD
Hogan, TF
AF McCormack, John P.
Eckermann, Stephen D.
Hogan, Timothy F.
TI Generation of a Quasi-Biennial Oscillation in an NWP Model Using a
Stochastic Gravity Wave Drag Parameterization
SO MONTHLY WEATHER REVIEW
LA English
DT Article
ID KINETIC-ENERGY SPECTRA; CIRCULATION MODEL; MIDDLE-ATMOSPHERE; EQUATORIAL
WAVES; CLIMATE MODELS; ANNULAR MODES; KELVIN WAVES; STRATOSPHERE;
IMPACT; SIMULATION
AB Many operational numerical weather prediction (NWP) systems now extend into the stratosphere and are beginning to be used to generate forecasts beyond conventional 5-10-day periods out to seasonal time scales. Past observational and modeling studies have shown that the quasi-biennial oscillation (QBO) in equatorial stratospheric winds can play an important role in stratosphere-troposphere dynamical coupling over these longer time scales. Consequently, stratosphere-resolving NWP models used to generate seasonal forecasts should contain the necessary physics to generate and maintain the QBO. This study describes several key modifications that were necessary to produce a QBO in a high-altitude NWP model, which include an increase in model vertical resolution, implementation of a computationally efficient stochastic gravity wave drag parameterization, and reductions in the amount of horizontal and vertical diffusion in the stratosphere. Results from a 10-yr free-running model simulation with these modifications show that the westerly QBO phase produces lower temperatures and stronger westerly flow in the Northern Hemisphere (NH) winter polar stratosphere compared to the easterly QBO phase. Ensembles of 120-day simulations over the December-March period show that these modifications replace persistent easterly flow in the equatorial lower stratosphere with a more realistic transition from easterly to westerly flow. The resulting changes in planetary wave propagation produce a statistically significant response in the dynamics of the NH extratropical stratosphere consistent with the Holton-Tan relationship. The westerly shift in equatorial winds also produces a significant response in the NH extratropical troposphere, where the sea level pressure differences in winter resemble the positive phase of the northern annular mode.
C1 [McCormack, John P.; Eckermann, Stephen D.] Naval Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Hogan, Timothy F.] Naval Res Lab, Marine Meteorol Div, Monterey, CA USA.
RP McCormack, JP (reprint author), Naval Res Lab, Code 7631,4555 Overlook Ave SW, Washington, DC 20375 USA.
EM john.mccormack@nrl.navy.mil
OI McCormack, John/0000-0002-3674-0508
FU Office of Naval Research through the Departmental Research Initiative
"Predictability of Seasonal and Intraseasonal Oscillations''; Chief of
Naval Research through the Naval Research Laboratory's base 6.1 research
program; DoD High Performance Computer Modernization Program via grants
of computer time at the U.S. Army Engineer Research and Development
Center (ERDC); Navy DoD Supercomputing Resource Center
FX This research was supported by the Office of Naval Research through the
Departmental Research Initiative "Predictability of Seasonal and
Intraseasonal Oscillations'' and by the Chief of Naval Research through
the Naval Research Laboratory's base 6.1 research program. Additional
support was provided by the DoD High Performance Computer Modernization
Program via grants of computer time at the U.S. Army Engineer Research
and Development Center (ERDC) and Navy DoD Supercomputing Resource
Center. GPCP data provided by the NOAA/ESRL/Physical Sciences Division
in Boulder, Colorado, from online (http://www.esrl.noaa.gov/psd).
NR 82
TC 0
Z9 0
U1 0
U2 13
PU AMER METEOROLOGICAL SOC
PI BOSTON
PA 45 BEACON ST, BOSTON, MA 02108-3693 USA
SN 0027-0644
EI 1520-0493
J9 MON WEATHER REV
JI Mon. Weather Rev.
PD JUN
PY 2015
VL 143
IS 6
BP 2121
EP 2147
DI 10.1175/MWR-D-14-00208.1
PG 27
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA CJ0TL
UT WOS:000355190900009
ER
PT J
AU Lucas, TW
Kelton, WD
Sanchez, PJ
Sanchez, SM
Anderson, BL
AF Lucas, Thomas W.
Kelton, W. David
Sanchez, Paul J.
Sanchez, Susan M.
Anderson, Ben L.
TI Changing the paradigm: Simulation, now a method of first resort
SO NAVAL RESEARCH LOGISTICS
LA English
DT Article
DE simulation; last resort; analytical models; history of computing;
simulation-modeling paradigms; simulation software; design of
experiments; simulation analysis; future of simulation
ID COMPUTABLE NUMBERS; ENTSCHEIDUNGSPROBLEM; MODELS
AB Decades ago, simulation was famously characterized as a method of last resort, to which analysts should turn only when all else fails. In those intervening decades, the technologies supporting simulationcomputing hardware, simulation-modeling paradigms, simulation software, design-and-analysis methodshave all advanced dramatically. We offer an updated view that simulation is now a very appealing option for modeling and analysis. When applied properly, simulation can provide fully as much insight, with as much precision as desired, as can exact analytical methods that are based on more restrictive assumptions. The fundamental advantage of simulation is that it can tolerate far less restrictive modeling assumptions, leading to an underlying model that is more reflective of reality and thus more valid, leading to better decisions. Published 2015 Wiley Periodicals, Inc. Naval Research Logistics 62: 293-303, 2015
C1 [Lucas, Thomas W.; Kelton, W. David; Sanchez, Paul J.; Sanchez, Susan M.] Naval Postgrad Sch, Dept Operat Res, Monterey, CA 93943 USA.
[Kelton, W. David] Univ Cincinnati, Dept Operat Business Analyt & Informat Syst, Cincinnati, OH 45221 USA.
[Anderson, Ben L.] US Naval War Coll, Coll Naval Command & Staff, Newport, RI 02841 USA.
RP Kelton, WD (reprint author), Naval Postgrad Sch, Dept Operat Res, Monterey, CA 93943 USA.
EM david.kelton@uc.edu
NR 61
TC 1
Z9 1
U1 0
U2 1
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0894-069X
EI 1520-6750
J9 NAV RES LOG
JI Nav. Res. Logist.
PD JUN
PY 2015
VL 62
IS 4
BP 293
EP 303
DI 10.1002/nav.21628
PG 11
WC Operations Research & Management Science
SC Operations Research & Management Science
GA CI2HO
UT WOS:000354567000002
ER
PT J
AU Woolf, RS
Hutcheson, AL
Gwon, C
Phlips, BF
Wulf, EA
AF Woolf, Richard S.
Hutcheson, Anthony L.
Gwon, Chul
Phlips, Bernard F.
Wulf, Eric A.
TI Comparing the response of PSD-capable plastic scintillator to standard
liquid scintillator
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS
SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
LA English
DT Article; Proceedings Paper
CT 15th Symposium on Radiation Measurements and Applications (SORMA)
CY JUN 09-12, 2014
CL Univ Michigan Campus, Ann Arbor, MI
SP Dept Energy, Univ Michigan, Coll Engn, Dept Nucl Engn & Radiol Sci
HO Univ Michigan Campus
DE Pulse shape discrimination; Plastic scintillator; Liquid scintillator;
EJ-299-33; EJ-301; EJ-309
ID PULSE-SHAPE DISCRIMINATION; NEUTRON; EJ-299-33
AB This work discusses a test campaign to characterize the response of the recently developed plastic scintillator with pulse shape discrimination (PSD) capabilities (EJ-299-33). PSD is a property exhibited by certain types of scintillating material in which incident stimuli (fast neutrons or gamma rays) can be separated by exploiting differences in the scintillation light pulse tail. Detector geometries used were: a 10 cm x 10 cm x 10 cm cube and a 10-cm diameter x 10-cm long cylinder. EJ-301 and EJ-309 liquid scintillators with well-known responses were also tested. The work was conducted at the University of Massachusetts Lowell Van De Graaff accelerator. The facility accelerated protons on a thin Li target to yield quasi-monoenergetic neutrons from the Li-7(p,n)Be-7 reaction (Q-value: -1.644 MeV). Collimated fast neutrons were obtained by placing detectors behind a neutron spectrometer. Rotating the spectrometer, and thus changing the neutron energy, allowed us to achieve 0.5-3.2 MeV neutrons in 200-300 keV steps. Data were acquired through a flash analog-to-digital converter (ADC) capable of performing digital PSD measurements. By using the PSD technique to separate the neutron events from unwanted gamma background, we constructed a pulse height spectrum at each energy.
Obtaining a relationship of the relative light output versus energy allowed us to construct the response function for the EJ-299-33 and liquid scintillator. The EJ-299-33 response in terms of electron equivalent energy (E-e.e.) vs. proton equivalent energy (E-p.e.), how it compared with the standard xylene-based EJ-301 (or, NE-213/BC-501 A equivalent) and EJ-309 liquid scintillator response, and how the EJ-301 and EJ-309 compared, are presented. We find that the EJ-299-33 demonstrated a lower light output by up to 40% for <1.0 MeV neutrons; and ranging between a 5-35% reduction for 2.5-3.0 MeV neutrons compared to the EJ-301/309, depending on the scintillator and geometry. Monte Carlo modeling techniques were used to investigate how the neutron beam and accelerator background environment affected the detector response. We find relatively good agreement between our results and the modeling; however, the observed response could not be fully accounted for due to events with pulse pile up, thus leading to contamination of the neutron PSD selected events. Published by Elsevier B.V.
C1 [Woolf, Richard S.; Hutcheson, Anthony L.; Gwon, Chul; Phlips, Bernard F.; Wulf, Eric A.] US Navy, Res Lab, High Energy Space Environm Branch, Div Space Sci, Washington, DC 20375 USA.
RP Woolf, RS (reprint author), US Navy, Res Lab, High Energy Space Environm Branch, Div Space Sci, 4555 Overlook Ave,SW, Washington, DC 20375 USA.
EM richard.woolf@nrl.navy.mil; anthony.hutcheson@nrl.navy.mil;
chul.gwon@nrl.navy.mil; bernard.phlips@nrl.navy.mil;
eric.wulf@nrl.navy.mil
OI Woolf, Richard/0000-0003-4859-1711
NR 31
TC 2
Z9 2
U1 2
U2 7
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-9002
EI 1872-9576
J9 NUCL INSTRUM METH A
JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc.
Equip.
PD JUN 1
PY 2015
VL 784
BP 80
EP 87
DI 10.1016/j.nima.2014.10.067
PG 8
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
Nuclear; Physics, Particles & Fields
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA CI2QO
UT WOS:000354592300016
ER
PT J
AU Mitchell, LJ
Phlips, BF
Wulf, EA
Hutcheson, AL
Gwon, C
Woolf, RS
Polaski, D
AF Mitchell, Lee J.
Phlips, Bernard F.
Wulf, Eric A.
Hutcheson, Anthony L.
Gwon, Chul
Woolf, Richard S.
Polaski, Donald
TI Gamma-ray and neutron background comparison of US metropolitan areas
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS
SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
LA English
DT Article; Proceedings Paper
CT 15th Symposium on Radiation Measurements and Applications (SORMA)
CY JUN 09-12, 2014
CL Univ Michigan Campus, Ann Arbor, MI
SP Dept Energy, Univ Michigan, Coll Engn, Dept Nucl Engn & Radiol Sci
HO Univ Michigan Campus
DE Gamma-ray; Neutron; Background; High purity germanium; Simulations;
Radiation detection
AB Gamma-ray and neutron background surveys were performed by the Naval Research Laboratory (Na) in U.S. cities, including Washington, D.C.; Kansas City and St. Louis, Missouri; Chicago, Illinois; Richmond, Virginia; Boston, Massachusetts and Baltimore, Maryland. Measurements covered a range of industrial, residential and commercial areas. Germanium grade gamma-ray data over the energy range of 0.05-3.0 MeV and neutron count rates with unmoderated He-3 sensitivity were recorded as a function of latitude, longitude and elevation in one second intervals. Typical Potassium Uranium Thorium (KUT) backgrounds were seen along with several anomalies. For example, a decrease in the thermal neutron flux in large urban canyons was seen and verified via Monte Carlo simulations. The data were collected to provide natural background models for simulation work Germanium grade spectroscopy is required, because it provides sufficiently detailed isotopic information of the gamma-ray background. As expected a comparison of the background shows significant differences between the individual cities. Published by Elsevier B.V.
C1 [Mitchell, Lee J.; Phlips, Bernard F.; Wulf, Eric A.; Hutcheson, Anthony L.; Gwon, Chul; Woolf, Richard S.; Polaski, Donald] US Navy, Res Lab, Div Space Sci, Washington, DC 20375 USA.
RP Mitchell, LJ (reprint author), US Navy, Res Lab, Div Space Sci, 4555 Overlook Ave,SW, Washington, DC 20375 USA.
EM lee.mitchell@nrl.navy.mil; bernard.phlips@nrl.navy.mil;
eric.wulf@nrl.navy.mil; anthony.hutcheson@nrl.navy.mil;
chul.gwon@nrl.navy.mil; richard.woolf@nrl.navy.mil;
donald.polaski.ctr@nrl.navy.mil
OI Woolf, Richard/0000-0003-4859-1711
NR 16
TC 0
Z9 0
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-9002
EI 1872-9576
J9 NUCL INSTRUM METH A
JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc.
Equip.
PD JUN 1
PY 2015
VL 784
BP 311
EP 318
DI 10.1016/j.nima.2015.01.020
PG 8
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
Nuclear; Physics, Particles & Fields
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA CI2QO
UT WOS:000354592300058
ER
PT J
AU Woolf, RS
Phlips, BF
Hutcheson, AL
Wulf, EA
AF Woolf, Richard S.
Phlips, Bernard F.
Hutcheson, Anthony L.
Wulf, Eric A.
TI Fast-neutron, coded-aperture imager
SO NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS
SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
LA English
DT Article; Proceedings Paper
CT 15th Symposium on Radiation Measurements and Applications (SORMA)
CY JUN 09-12, 2014
CL Univ Michigan Campus, Ann Arbor, MI
SP Dept Energy, Univ Michigan, Coll Engn, Dept Nucl Engn & Radiol Sci
HO Univ Michigan Campus
DE Coded-aperture imaging; Fast neutrons; Liquid scintillator; Pulse shape
discrimination; EJ-309
ID UNIFORMLY REDUNDANT ARRAYS; GAMMA-RAY ASTRONOMY
AB This work discusses a large-scale, coded-aperture imager for fast neutrons, building off a proof-of concept instrument developed at the U.S. Naval Research Laboratory (NRL). The Space Science Division at the NRL has a heritage of developing large-scale, mobile systems, using coded-aperture imaging, for long-range gamma-ray detection and localization. The fast-neutron, coded-aperture imaging instrument, designed for a mobile unit (20 ft. ISO container), consists of a 32-element array of 15 cm x 15 cm x 15 cm liquid scintillation detectors (EJ-309) mounted behind a 12 x 12 pseudorandom coded aperture. The elements of the aperture are composed of 15 cm x 15 cm x 10 cm blocks of high-density polyethylene (HDPE). The arrangement of the aperture elements produces a shadow pattern on the detector array behind the mask. By measuring of the number of neutron counts per masked and unmasked detector, and with knowledge of the mask pattern, a source image can be deconvolved to obtain a 2-d location. The number of neutrons per detector was obtained by processing the fast signal from each PMT in flash digitizing electronics. Digital pulse shape discrimination (PSD) was performed to filter out the fast-neutron signal from the gamma background. The prototype instrument was tested at an indoor facility at the NRL with a 1.8-mu Ci and 13-mu Ci 252Cf neutron/gamma source at three standoff distances of 9, 15 and 26 m (maximum allowed in the facility) over a 15-min integration time. The imaging and detection capabilities of the instrument were tested by moving the source in half- and one-pixel increments across the image plane. We show a representative sample of the results obtained at one-pixel increments for a standoff distance of 9 m. The 1.8-mu Ci source was not detected at the 26-m standoff. In order to increase the sensitivity of the instrument, we reduced the fastneutron background by shielding the top, sides and back of the detector array with 10-cm-thick HDPE. This shielding configuration led to a reduction in the background by a factor of 1.7 and thus allowed for the detection and localization of the 1.8 pCi. The detection significance for each source at different standoff distances will be discussed. Published by Elsevier B.V.
C1 [Woolf, Richard S.; Phlips, Bernard F.; Hutcheson, Anthony L.; Wulf, Eric A.] Res Lab, US Navy, High Energy Space Environm Branch, Div Space Sci, Washington, DC 20375 USA.
RP Woolf, RS (reprint author), Res Lab, US Navy, High Energy Space Environm Branch, Div Space Sci, 4555 Overlook Ave,SW, Washington, DC 20375 USA.
EM richard.woolf@nrl.navy.mil; bernard.phlips@nrl.navy.mil;
anthony.hutcheson@nrl.navy.mil; eric.wulf@nrl.navy.mil
OI Woolf, Richard/0000-0003-4859-1711
NR 13
TC 1
Z9 1
U1 2
U2 7
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-9002
EI 1872-9576
J9 NUCL INSTRUM METH A
JI Nucl. Instrum. Methods Phys. Res. Sect. A-Accel. Spectrom. Dect. Assoc.
Equip.
PD JUN 1
PY 2015
VL 784
BP 398
EP 404
DI 10.1016/j.nima.2015.01.084
PG 7
WC Instruments & Instrumentation; Nuclear Science & Technology; Physics,
Nuclear; Physics, Particles & Fields
SC Instruments & Instrumentation; Nuclear Science & Technology; Physics
GA CI2QO
UT WOS:000354592300072
ER
PT J
AU Howe, PG
AF Howe, P. Gardner, III
TI Education Engine
SO NAVAL WAR COLLEGE REVIEW
LA English
DT Editorial Material
C1 [Howe, P. Gardner, III] US Navy, Washington, DC USA.
RP Howe, PG (reprint author), US Navy, Washington, DC USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU US NAVAL WAR COLL
PI NEWPORT
PA 686 CUSHING RD, NEWPORT, RI 02841 USA
SN 0028-1484
J9 NAV WAR COLL REV
JI Nav. War Coll. Rev.
PD SUM
PY 2015
VL 68
IS 3
BP 9
EP 11
PG 3
WC International Relations
SC International Relations
GA DP3ZV
UT WOS:000378436000002
ER
PT J
AU Johnson, WB
Andersen, GR
AF Johnson, W. Brad
Andersen, Gene R.
TI MENTORING IN THE U.S. NAVY Experiences and Attitudes of Senior Navy
Personnel
SO NAVAL WAR COLLEGE REVIEW
LA English
DT Article
C1 [Johnson, W. Brad] US Naval Acad, Psychol, Dept Leadership Eth & Law, Annapolis, MD 21402 USA.
[Johnson, W. Brad] Johns Hopkins Univ, Grad Sch Educ, Baltimore, MD 21218 USA.
[Johnson, W. Brad] Bethesda Naval Hosp, Bethesda, MD USA.
[Andersen, Gene R.] Naval War Coll, Coll Operat & Strateg Leadership, Leadership Educ, Newport, RI USA.
RP Johnson, WB (reprint author), US Naval Acad, Psychol, Dept Leadership Eth & Law, Annapolis, MD 21402 USA.
NR 16
TC 1
Z9 1
U1 1
U2 1
PU US NAVAL WAR COLL
PI NEWPORT
PA 686 CUSHING RD, NEWPORT, RI 02841 USA
SN 0028-1484
J9 NAV WAR COLL REV
JI Nav. War Coll. Rev.
PD SUM
PY 2015
VL 68
IS 3
BP 76
EP 90
PG 15
WC International Relations
SC International Relations
GA DP3ZV
UT WOS:000378436000006
ER
PT J
AU Garcia-Nava, H
Ocampo-Torres, FJ
Hwang, PA
AF Garcia-Nava, Hector
Ocampo-Torres, Francisco J.
Hwang, Paul A.
TI Reconciling Discrepancies Between Airborne and Buoy-Based Measurements
of Wind Stress Over Mixed Seas
SO BOUNDARY-LAYER METEOROLOGY
LA English
DT Article
DE Airborne measurements; Eddy covariance; Sampling errors; Wind stress
ID SURFACE-LAYER TURBULENCE; AIR MOTION; AIRCRAFT; FLUXES; TEHUANTEPEC
AB In a previous study it was found that airborne and buoy-based measurements of wind stress made in the Gulf of Tehuantepc, M,xico failed to agree. Here we revisit the issue and analyze data from both platforms in the context of flux-sampling strategies and find that there is now good agreement between wind-stress estimates from both experiments. The sampling strategies used for airborne and buoy-based sampling capture most of the contributing scales to the momentum flux and, correspondingly, the systematic errors for both stress estimates are low. On the other hand, the random error is much larger for the airborne measurements as compared with that for the buoy-based estimates. Increasing the averaging period for the aircraft-based estimates reduces the random error and brings the stress estimates into a better agreement with those from the buoy data. Since there is a good agreement between stress estimates, the apparent underestimation found earlier seems to be coincidental and caused by the interpolation method employed by the source paper.
C1 [Garcia-Nava, Hector] Univ Autonoma Baja California, Inst Invest Oceanol, Ensenada, Baja California, Mexico.
[Ocampo-Torres, Francisco J.] Ctr Invest Cient & Educ Super Ensenada BC, Dept Oceanog Fis, Ensenada, Baja California, Mexico.
[Hwang, Paul A.] Naval Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
RP Garcia-Nava, H (reprint author), Univ Autonoma Baja California, Inst Invest Oceanol, Ensenada, Baja California, Mexico.
EM hector.gnava@gmail.com
FU National Science Foundation; PROMEP [UABC-10160]; CONACYT [155793];
Office of Naval Research (NRL) [NRL/JA/7260-14-0051]
FX We thank Margaret A. LeMone and three other anonymous reviewers whose
suggestions and comments reshaped and enriched this work. GOTEX data
were provided by NCAR/EOL under sponsorship of the National Science
Foundation. GOTEX was a collaborative effort of groups from Scripps
Institution of Oceanography (UCSD), UC Irvine, NASA/EG&G, NCAR and the
Universidad Autonoma de Mexico (UNAM), led by W. Kendall Melville and
Carl A. Friehe. The research was partially sponsored by PROMEP (Project
UABC-10160), CONACYT (Project 155793, RugDiSMar) and the Office of Naval
Research (NRL contribution: NRL/JA/7260-14-0051).
NR 27
TC 0
Z9 0
U1 1
U2 6
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0006-8314
EI 1573-1472
J9 BOUND-LAY METEOROL
JI Bound.-Layer Meteor.
PD JUN
PY 2015
VL 155
IS 3
BP 515
EP 526
DI 10.1007/s10546-015-0007-y
PG 12
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA CH6BQ
UT WOS:000354121100008
ER
PT J
AU Shrivats, AR
Hsu, E
Averick, S
Klimak, M
Watt, ACS
DeMaio, M
Matyjaszewski, K
Hollinger, JO
AF Shrivats, Arun R.
Hsu, Eric
Averick, Saadyah
Klimak, Molly
Watt, April C. S.
DeMaio, Marlene
Matyjaszewski, Krzysztof
Hollinger, Jeffrey O.
TI Cationic Nanogel-mediated Runx2 and Osterix siRNA Delivery Decreases
Mineralization in MC3T3 Cells
SO CLINICAL ORTHOPAEDICS AND RELATED RESEARCH
LA English
DT Article
ID TRANSFER RADICAL POLYMERIZATION; TRAUMATIC BRAIN-INJURY; MESENCHYMAL
STEM-CELLS; SPINAL-CORD-INJURY; HETEROTOPIC OSSIFICATION;
TRANSCRIPTIONAL REGULATION; RISK-FACTORS; RADIATION PROPHYLAXIS; EARLY
EXCISION; BONE-FORMATION
AB Heterotopic ossification (HO) may occur after musculoskeletal trauma, traumatic brain injury, and total joint arthroplasty. As such, HO is a compelling clinical concern in both military and civilian medicine. A possible etiology of HO involves dysregulated signals in the bone morphogenetic protein osteogenic cascade. Contemporary treatment options for HO (ie, nonsteroidal antiinflammatory drugs and radiation therapy) have adverse effects associated with their use and are not biologically engineered to abrogate the molecular mechanisms that govern osteogenic differentiation.
We hypothesized that (1) nanogel-mediated short interfering RNA (siRNA) delivery against Runt-related transcription factor 2 (Runx2) and osterix (Osx) genes will decrease messenger RNA expression; (2) inhibit activity of the osteogenic marker alkaline phosphatase (ALP); and (3) inhibit hydroxyapatite (HA) deposition in osteoblast cell cultures.
Nanogel nanostructured polymers delivered siRNA in 48-hour treatment cycles against master osteogenic regulators, Runx2 and Osx, in murine calvarial preosteoblasts (MC3T3-E1.4) stimulated for osteogenic differentiation by recombinant human bone morphogenetic protein (rhBMP-2). The efficacy of RNA interference (RNAi) therapeutics was determined by quantitation of messenger RNA knockdown (by quantitative reverse transcription-polymerase chain reaction), downstream protein knockdown (determined ALP enzymatic activity assay), and HA deposition (determined by OsteoImage (TM) assay).
Gene expression assays demonstrated that nanogel-based RNAi treatments at 1:1 and 5:1 nanogel:short interfering RNA weight ratios reduced Runx2 expression by 48.59% +/- A 19.53% (p < 0.001) and 43.22% +/- A 18.01% (both p < 0.001). The same 1:1 and 5:1 treatments against both Runx2 and Osx reduced expression of Osx by 51.65% +/- A 10.85% and 47.65% +/- A 9.80% (both p < 0.001). Moreover, repeated 48-hour RNAi treatment cycles against Runx2 and Osx rhBMP-2 administration reduced ALP activity after 4 and 7 days. ALP reductions after 4 days in culture by nanogel 5:1 and 10:1 RNAi treatments were 32.4% +/- A 12.0% and 33.6% +/- A 13.8% (both p < 0.001). After 7 days in culture, nanogel 1:1 and 5:1 RNAi treatments produced 35.9% +/- A 14.0% and 47.7% +/- A 3.2% reductions in ALP activity. Osteoblast mineralization data after 21 days suggested that nanogel 1:1, 5:1, and 10:1 RNAi treatments decreased mineralization (ie, HA deposition) from cultures treated only with rhBMP-2 (p < 0.001). However, despite RNAi attack on Runx2 and Osx, HA deposition levels remained greater than non-rhBMP-2-treated cell cultures.
Although mRNA and protein knockdown were confirmed as a result of RNAi treatments against Runx2 and Osx, complete elimination of mineralization processes was not achieved. RNAi targeting mid- and late-stage osteoblast differentiation markers such as ALP, osteocalcin, osteopontin, and bone sialoprotein) may produce the desired RNAi-nanogel nanostructured polymer HO prophylaxis.
Successful HO prophylaxis should target and silence osteogenic markers critical for heterotopic bone formation processes. The identification of such markers, beyond RUNX2 and OSX, may enhance the effectiveness of RNAi prophylaxes for HO.
C1 [Shrivats, Arun R.; Hsu, Eric; Klimak, Molly; Watt, April C. S.; Hollinger, Jeffrey O.] Carnegie Mellon Univ, Dept Biomed Engn, Pittsburgh, PA 15219 USA.
[Averick, Saadyah; Matyjaszewski, Krzysztof] Carnegie Mellon Univ, Dept Chem, Pittsburgh, PA 15213 USA.
[DeMaio, Marlene] Naval Med Ctr Portsmouth, Dept Orthopaed Surg, Portsmouth, VA 23708 USA.
RP Hollinger, JO (reprint author), Carnegie Mellon Univ, Dept Biomed Engn, 700 Technol Dr, Pittsburgh, PA 15219 USA.
EM hollinge@cs.cmu.edu
RI Matyjaszewski, Krzysztof/A-2508-2008; Averick, Saadyah/A-9999-2015
OI Matyjaszewski, Krzysztof/0000-0003-1960-3402;
FU DoD - Defense Medical Research and Development Program [W81XWH1120073,
DMR09-69301]
FX Two of the authors (ARS, EH) contributed equally. All institutions in
this study, during the study period, received funding from DoD Grant
W81XWH1120073, which was awarded by the Defense Medical Research and
Development Program, and DMR09-69301.
NR 70
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U2 29
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0009-921X
EI 1528-1132
J9 CLIN ORTHOP RELAT R
JI Clin. Orthop. Rel. Res.
PD JUN
PY 2015
VL 473
IS 6
BP 2139
EP 2149
DI 10.1007/s11999-014-4073-0
PG 11
WC Orthopedics; Surgery
SC Orthopedics; Surgery
GA CH6FX
UT WOS:000354133000043
PM 25448327
ER
PT J
AU Willauer, HD
Hardy, DR
Moyer, SA
DiMascio, F
Williams, FW
Drab, DM
AF Willauer, Heather D.
Hardy, Dennis R.
Moyer, Seth A.
DiMascio, Felice
Williams, Frederick W.
Drab, David M.
TI An economic basis for littoral land-based production of low carbon fuel
from nuclear electricity and seawater for naval or commercial use
SO ENERGY POLICY
LA English
DT Article
DE Littoral; Hydrocarbon Liquids; Nuclear Electricty; Seawater
ID FISCHER-TROPSCH SYNTHESIS; REACTOR; CO2
AB Three separate U.S. military databases were used to estimate the U.S. Navy operational fuel needs at sea for the last several years. Defense Science Board data were used to estimate the current FY2013 total fuel delivered-at-sea price being paid by the USN per gallon between $6 and $7. Using published capital cost data and a range of nuclear electrical energy scenarios, costs ranging between $1.48 to $8.67 per gallon are estimated for producing 82,000 gal per day of fuel in littoral land-based locations. This provides policy analysts with a reasonable economic rationale and justification for planning and designing a new littoral land-based energy conversion process to provide low carbon jet and diesel fuel for operations at sea. This process is considered low carbon emissions because it uses environmentally available carbon and hydrogen and dedicated nuclear electrical energy as its only inputs. Generic naval missions and fuel usage data provide the constraints needed for establishing full scale process size, number of locations, power requirements, and cost using current light water nuclear reactor technology. This information may also be used by policy analysts to support changes in future naval energy policy. Published by Elsevier Ltd.
C1 [Willauer, Heather D.] Naval Res Lab, Mat Sci & Technol Div, Washington, DC 20375 USA.
[Hardy, Dennis R.] NOVA Res Inc, Alexandria, VA 22308 USA.
[Moyer, Seth A.] Naval Undersea Warfare Ctr Div, Newport, RI 02841 USA.
[DiMascio, Felice] Off Naval Res, Arlington, VA 22203 USA.
[Williams, Frederick W.] Naval Res Lab, Div Chem, Washington, DC 20375 USA.
[Drab, David M.] Naval Res Lab, NRC Postdoctoral Res Associate, Mat Sci & Technol Div, Washington, DC 20375 USA.
RP Willauer, HD (reprint author), Naval Res Lab, Mat Sci & Technol Div, Washington, DC 20375 USA.
EM heather.willauer@nrl.navy.mil; kashardy@gmail.com; seth.moyer@navy.mil;
felixdim@aol.com; frederick.williams@nrl.navy.mil; dmdrab23@hotmail.com
FU Office of Naval Research through the Naval Research Laboratory
FX This work was supported by the Office of Naval Research both directly
and through the Naval Research Laboratory.
NR 47
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U1 4
U2 24
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0301-4215
EI 1873-6777
J9 ENERG POLICY
JI Energy Policy
PD JUN
PY 2015
VL 81
BP 67
EP 75
DI 10.1016/j.enpol.2015.02.006
PG 9
WC Energy & Fuels; Environmental Sciences; Environmental Studies
SC Energy & Fuels; Environmental Sciences & Ecology
GA CH2JX
UT WOS:000353852600008
ER
PT J
AU Fairchok, MP
Chen, WJ
Arnold, JC
Schofield, C
Danaher, PJ
McDonough, EA
Ottolini, M
Mor, D
Ridore, M
Burgess, TH
Millar, EV
AF Fairchok, Mary P.
Chen, Wei-Ju
Arnold, John C.
Schofield, Christina
Danaher, Patrick J.
McDonough, Erin A.
Ottolini, Martin
Mor, Deepika
Ridore, Michelande
Burgess, Timothy H.
Millar, Eugene V.
TI Neuraminidase inhibitor therapy in a military population
SO JOURNAL OF CLINICAL VIROLOGY
LA English
DT Article
DE Influenza; Neuraminidase inhibitors; Severity; Prescription; Antivirals
ID VIRUS-INFECTION; UNITED-STATES; INFLUENZA; OSELTAMIVIR; ILLNESS; ONSET
AB Background: Although neuraminidase inhibitors (NI) are the mainstay of treatment for influenza infection, prescribing practice for these agents is not well described. Additionally, benefit is contested.
Objectives: We examined provider prescriptions of NI during the 2009 pandemic and post-pandemic periods. We also evaluated the effectiveness of NI in reducing severity of influenza infection.
Study design: Data on NI prescription and severity of influenza infection were compiled in healthy pediatric and adult beneficiaries enrolled in a prospective study of influenza like illness conducted at five military medical centers over five years. Subjects underwent nasal swabs to determine viral etiology of their infection. Demographic, medication and severity data were collected. Subjects with positive influenza were included.
Results: Two hundred sixty three subjects were influenza positive [38% [H1N1] pdm09, 38.4% H3N2, and 20.5% B); 23.9% were treated with NI. NI were initiated within 48 h in 63% of treated subjects. Although NI use increased over the five years of the study, early use declined. Most measures for severity of illness were not significantly reduced with NI; adults treated within 48 h had only a modest reduction in duration and severity of some of their symptoms.
Conclusions: NI use in our population is increasing, but early use is not. NI use resulted in no reduction in complications of illness. Resolution of symptoms and reduction in severity of some symptoms were slightly better in adults who were treated early. These modest benefits do not support routine treatment with NI in otherwise healthy individuals with influenza. (C) 2015 Elsevier B.V. All rights reserved.
C1 [Fairchok, Mary P.; Chen, Wei-Ju; Mor, Deepika; Ridore, Michelande; Millar, Eugene V.] Uniformed Serv Univ Hlth Sci, Dept Prevent Med & Biometr, Infect Dis Clin Res Program, Bethesda, MD 20814 USA.
[Fairchok, Mary P.; Chen, Wei-Ju; Mor, Deepika; Ridore, Michelande; Millar, Eugene V.] Henry M Jackson Fdn Adv Mil Med, Rockville, MD USA.
[Fairchok, Mary P.; Schofield, Christina] Madigan Army Med Ctr, Tacoma, WA 98431 USA.
[Arnold, John C.] Naval Med Ctr, San Diego, CA USA.
[Danaher, Patrick J.] San Antonio Mil Med Ctr, San Antonio, TX USA.
[McDonough, Erin A.] Naval Hlth Res Ctr, San Diego, CA USA.
[Ottolini, Martin; Burgess, Timothy H.] Uniformed Serv Univ Hlth Sci, Off Curriculum, Bethesda, MD 20814 USA.
[Burgess, Timothy H.] Walter Reed Natl Mil Med Ctr, Bethesda, MD USA.
RP Fairchok, MP (reprint author), Madigan Army Med Ctr, Dept Pediat, Infect Dis Clin Res Program, 9040 Jackson Ave, Tacoma, WA 98431 USA.
EM mary.p.fairchok.ctr@mail.mil
FU Infectious Disease Clinical Research Program (IDCRP), a Department of
Defense (DoD) program executed through the Uniformed Services University
of the Health Sciences; National Institute of Allergy and Infectious
Diseases, National Institutes of Health (NIH) [Y1-AI-5072]
FX This work was supported by the Infectious Disease Clinical Research
Program (IDCRP), a Department of Defense (DoD) program executed through
the Uniformed Services University of the Health Sciences. This project
has been funded in whole, or in part, with federal funds from the
National Institute of Allergy and Infectious Diseases, National
Institutes of Health (NIH), under Inter-Agency Agreement [Y1-AI-5072].
NR 19
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U1 0
U2 1
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1386-6532
EI 1873-5967
J9 J CLIN VIROL
JI J. Clin. Virol.
PD JUN
PY 2015
VL 67
BP 17
EP 22
DI 10.1016/j.jcv.2015.03.018
PG 6
WC Virology
SC Virology
GA CH6CW
UT WOS:000354124400004
PM 25959151
ER
PT J
AU Martin, BD
Leary, DH
Trammell, SA
Ellis, GA
Naciri, J
Depriest, JC
Deschamps, JR
AF Martin, Brett D.
Leary, Dagmar H.
Trammell, Scott A.
Ellis, Greg A.
Naciri, Jawad
Depriest, Jeffrey C.
Deschamps, Jeffrey R.
TI One-step synthesis of a new photoelectron-accepting, n-dopable oligo
(pyrazole)
SO SYNTHETIC METALS
LA English
DT Article
DE Photocurrent; Solar cell; Photodiode; Oligomer; Pyrazole; n-doped
ID SOLAR-CELLS; MAIN-CHAIN; POLYFLUORENE COPOLYMERS; POLYMER; PHOTODIODES;
PERFORMANCE; CIRCUIT
AB A new photoelectron-accepting, n-dopable organic oligomer has been synthesized in a single step. It is a fluorescent tetramer formed from a substituted aminopyrazole, 3-amino-1H-pyrazole-4-carbonitrile, which has a low cost (about two USD per gram). Its chemical structure was verified using FTIR, mass spectrometry, and H-1/C-13 NMR. When used as an electron acceptor in an ITO-supported photocell containing a PEDOT-PSS hole transporting layer, the tetramer can support photocurrents of as high as 1.40 x 10(-4) A at OV bias, and 7.20 x 10(-3) A above baseline at 1.0V bias. The cell, having a fabrication method that is not yet optimized, showed a photodiode responsivity of as high as 0.48 A/W, and a sensitivity of as high as 6.0 x 10(-4) Sm/W. Most importantly, it also demonstrated a detectivity of as high as 2.7 x 10(12) Jones, which is comparable to state-of-the-art inorganic photodiodes. The tetramer may represent a new, very inexpensive class of conducting organics useful in polymer-based photodiodes and solar cells. Published by Elsevier B.V.
C1 [Martin, Brett D.; Leary, Dagmar H.; Trammell, Scott A.; Naciri, Jawad; Deschamps, Jeffrey R.] US Navy, Res Lab, Washington, DC 20375 USA.
[Ellis, Greg A.] US Navy, Res Lab, Natl Res Council, Washington, DC 20375 USA.
[Depriest, Jeffrey C.] Def Threat Reduct Agcy, Ft Belvoir, VA 22060 USA.
RP Martin, BD (reprint author), US Navy, Res Lab, Code 6930, Washington, DC 20375 USA.
EM brett.martin@nrl.navy.mil; jeffrey.deschamps@nrl.navy.mil
FU Defense Threat Reduction Agency
FX This work was supported by the Defense Threat Reduction Agency.
NR 31
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U1 1
U2 15
PU ELSEVIER SCIENCE SA
PI LAUSANNE
PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND
SN 0379-6779
J9 SYNTHETIC MET
JI Synth. Met.
PD JUN
PY 2015
VL 204
BP 32
EP 38
DI 10.1016/j.synthmet.2015.03.004
PG 7
WC Materials Science, Multidisciplinary; Physics, Condensed Matter; Polymer
Science
SC Materials Science; Physics; Polymer Science
GA CH4MQ
UT WOS:000354008000005
ER
PT J
AU Crowder, T
AF Crowder, Tanner
TI A linearization of quantum channels
SO JOURNAL OF GEOMETRY AND PHYSICS
LA English
DT Article
DE Lie theory; Quantum information; Bloch representation
ID THEOREM; MAPS
AB Because the quantum channels form a compact, convex set, we can express any quantum channel as a convex combination of extremal channels. We give a Euclidean representation for the channels whose inverses are also valid channels; these are a subset of the extreme points. They form a compact, connected Lie group, and we calculate its Lie algebra. Lastly, we calculate a maximal torus for the group and provide a constructive approach to decomposing any invertible channel into a product of elementary channels. Published by Elsevier B.V.
C1 US Navy, Res Lab, Ctr High Assurance Comp Syst Code 5540, Washington, DC 20375 USA.
RP Crowder, T (reprint author), US Navy, Res Lab, Ctr High Assurance Comp Syst Code 5540, Washington, DC 20375 USA.
EM tanner.crowder@nrl.navy.mil
NR 22
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U1 0
U2 1
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0393-0440
EI 1879-1662
J9 J GEOM PHYS
JI J. Geom. Phys.
PD JUN
PY 2015
VL 92
BP 157
EP 166
DI 10.1016/j.geomphys.2015.02.014
PG 10
WC Mathematics, Applied; Physics, Mathematical
SC Mathematics; Physics
GA CH2KT
UT WOS:000353854800013
ER
PT J
AU Tan, TK
Darken, CJ
AF Tan, Terence K.
Darken, Christian J.
TI Learning and prediction of relational time series
SO COMPUTATIONAL AND MATHEMATICAL ORGANIZATION THEORY
LA English
DT Article
DE Sequence learning; Prediction; Relational time series
AB Learning to predict events in the near future is fundamental to human and artificial agents. Many prediction techniques are unable to learn and predict a stream of relational data online when the environments are unknown, non-stationary, and no prior training examples are available. This paper addresses the online prediction problem by introducing a low complexity learning technique called Situation Learning and several prediction techniques that use the information from Situation Learning to predict the next likely event. The prediction techniques include two variants of a Bayesian inference technique, a variable order Markov model prediction technique and situation matching techniques. We compared their prediction accuracies quantitatively for three domains: a role-playing game, computer network intrusion system alerts, and event prediction of maritime paths in a discrete-event simulator.
C1 [Tan, Terence K.] DSO Natl Labs, Singapore 118230, Singapore.
[Darken, Christian J.] Naval Postgrad Sch, MOVES Inst, Monterey, CA 93943 USA.
RP Tan, TK (reprint author), DSO Natl Labs, 20 Sci Pk Dr, Singapore 118230, Singapore.
EM tankianmoh@hotmail.com; cjdarken@nps.edu
NR 23
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U1 0
U2 5
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 1381-298X
EI 1572-9346
J9 COMPUT MATH ORGAN TH
JI Comput. Math. Organ. Theory
PD JUN
PY 2015
VL 21
IS 2
BP 210
EP 241
DI 10.1007/s10588-015-9182-0
PG 32
WC Computer Science, Interdisciplinary Applications; Mathematics,
Interdisciplinary Applications; Social Sciences, Mathematical Methods
SC Computer Science; Mathematics; Mathematical Methods In Social Sciences
GA CG7EX
UT WOS:000353466500004
ER
PT J
AU Lumb, MP
Gonzalez, M
Yakes, MK
Affouda, CA
Bailey, CG
Walters, RJ
AF Lumb, Matthew P.
Gonzalez, Maria
Yakes, Michael K.
Affouda, Chaffra A.
Bailey, Christopher G.
Walters, Robert J.
TI High temperature current-voltage characteristics of InP-based tunnel
junctions
SO PROGRESS IN PHOTOVOLTAICS
LA English
DT Article
DE tunnel junction; temperature dependence; multi-junction solar cell;
III-V; InP
ID MULTIJUNCTION SOLAR-CELLS
AB In this paper, we present temperature-dependent current-voltage measurements of tunnel junctions lattice matched to InP at temperatures ranging from room temperature to 220 degrees C. Temperature-dependent tunneling properties were extracted by fitting the current-voltage characteristics using a simple analytical formula. Three different designs of tunnel junction were characterized, including a bulk InAlGaAs tunnel junction, an InAlGaAs tunnel junction with InAlAs cladding layers and an InGaAs/InAlGaAs quantum-well tunnel junction. Each device exhibited different temperature dependence in peak tunnel current and excess current, with the quantum-well tunnel junction exhibiting the greatest temperature sensitivity. We use a non-local tunneling model, in conjunction with a numerical drift-diffusion solver, to explain the performance improvement available by using double heterostructure cladding layers around the junction region, and use the same model to explain the observed temperature dependence of the devices. Copyright (c) 2014 John Wiley & Sons, Ltd.
C1 [Lumb, Matthew P.] George Washington Univ, Washington, DC 20037 USA.
[Lumb, Matthew P.; Gonzalez, Maria; Yakes, Michael K.; Affouda, Chaffra A.; Bailey, Christopher G.; Walters, Robert J.] Naval Res Lab, Washington, DC 20375 USA.
[Gonzalez, Maria] Sotera Def Solut, Annapolis Jct, MD 20701 USA.
RP Lumb, MP (reprint author), US Navy, Res Lab, Elect Sci & Technol Div, Washington, DC 20375 USA.
EM matthew.lumb.ctr.uk@nrl.navy.mil
FU Office of Naval Research
FX The authors would like to thank Justin Lorentzen, Raymond Hoheisel, and
David Scheiman for helpful contributions to this work. This work was
funded by the Office of Naval Research.
NR 37
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Z9 0
U1 2
U2 15
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1062-7995
EI 1099-159X
J9 PROG PHOTOVOLTAICS
JI Prog. Photovoltaics
PD JUN
PY 2015
VL 23
IS 6
BP 773
EP 782
DI 10.1002/pip.2495
PG 10
WC Energy & Fuels; Materials Science, Multidisciplinary; Physics, Applied
SC Energy & Fuels; Materials Science; Physics
GA CG6EK
UT WOS:000353388800010
ER
PT J
AU Bermudez, VM
AF Bermudez, V. M.
TI Defect formation on the GaSb (001) surface induced by hydrogen atom
adsorption
SO SOLID STATE COMMUNICATIONS
LA English
DT Article
DE Hydrogen; Defects; Density functional theory; GaSb
ID GALLIUM ANTIMONIDE; SEMICONDUCTORS; PASSIVATION; CRYSTALS; GROWTH;
PLASMA
AB Density functional theory has been used to characterize the effects of adsorbed H on the electronic structure of the GaSb (001)alpha(4 x 3) surface, which consists of a combination of Ga-Sb and Sb-Sb dimers. Adsorption of two H atoms at a Ga-Sb adatom dimer either has little effect on surface states above the bulk valence band maximum (VBM) or else eliminates them, depending on the mode of adsorption. However, adsorption at the Sb-Sb dimer in the terminating layer produces a state farther into the gap at similar to 0.10 eV above the clean-surface VBM. Relaxation accompanying the breaking of the Sb-Sb (timer bond leads to increased interactions involving three-fold-coordinated Sb sites in the terminating layer, which in turn raises the energies of the non-bonding lone-pair orbitals. This defect state, which appears to be unique to the reconstructed GaSb (001) surface, could potentially function as a hole trap on the surface of p-type GaSb. Published by Elsevier Ltel
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 bermudez@alum.mit.edu
FU Office of Naval Research
FX This work was supported by the Office of Naval Research. Pratibha Dev is
thanked for a critical reading of the manuscript and for helpful
suggestions,
NR 23
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Z9 1
U1 1
U2 10
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0038-1098
EI 1879-2766
J9 SOLID STATE COMMUN
JI Solid State Commun.
PD JUN
PY 2015
VL 211
BP 10
EP 15
DI 10.1016/j.ssc.2015.03.011
PG 6
WC Physics, Condensed Matter
SC Physics
GA CG7YJ
UT WOS:000353523500003
ER
PT J
AU Aubry, R
Dey, S
Mestreau, EL
Karamete, BK
Gayman, D
AF Aubry, R.
Dey, S.
Mestreau, E. L.
Karamete, B. K.
Gayman, D.
TI A robust conforming NURBS tessellation for industrial applications based
on a mesh generation approach
SO COMPUTER-AIDED DESIGN
LA English
DT Article
DE NURBS surfaces; Surface triangulation; CAD tessellation; Surface
untangling; Parabolic lines; NURBS singularities
ID SURFACES; TRIANGULATION; ALGORITHM; DISPLAY; ERROR
AB A NURBS tessellation technique is presented with the goal to robustly approximate CAD surfaces that define the boundary of complicated three dimensional geometric shapes with a minimum number of triangles. The minimization is achieved by generating anisotropic triangles in the three dimensional space. New procedures are presented to handle numerical stability issues due to the anisotropy. The tessellation is generated using a mesh generation viewpoint, as opposed to the more classical viewpoint of graphical visualization of surfaces in CAD. This ensures topological conformity of the resulting mesh. A tiered approximation approach is used for speed and robustness. Degeneracies associated with NURBS curves and surfaces are given special attention as they occur frequently in naval and aerospace conceptual-to-early design process. Analogies with a classical mesh generation process are discussed and several numerical examples illustrate the method. (c) 2015 Elsevier Ltd. All rights reserved.
C1 [Aubry, R.; Mestreau, E. L.; Karamete, B. K.; Gayman, D.] Sotera Def Solut, Mclean, VA 22102 USA.
[Dey, S.] US Naval Res Lab, Washington, DC 20375 USA.
RP Aubry, R (reprint author), Sotera Def Solut, 1501 Farm Credit Dr,Suite 2300, Mclean, VA 22102 USA.
EM romain.aubry.ctr.fr@nrl.navy.mil
OI Aubry, Romain/0000-0002-4094-1636
FU DoD HPCMP as part of the Computational Research and Engineering
Acquisition Tools and Environments (CREATE) Program
FX This work was supported by the DoD HPCMP as part of the Computational
Research and Engineering Acquisition Tools and Environments (CREATE)
Program. Dr. William Lang from NAVSEA Carderock is acknowledged for
fruitful discussions related to surfaces presenting chines inside a
NURBS patch. Anuj Kaushal http://grabcad.com/anuj.kaushal-1 is
acknowledged for the complex turbine model reproduced with permission.
Prof. Denis Aubry from Ecole Centrale de Paris is acknowledged for the
derivation of the surface error estimate based on the principal
curvatures. We finally would like to thank the anonymous reviewers for
substantially improving the quality of the manuscript.
NR 53
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U1 1
U2 5
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0010-4485
EI 1879-2685
J9 COMPUT AIDED DESIGN
JI Comput.-Aided Des.
PD JUN
PY 2015
VL 63
BP 26
EP 38
DI 10.1016/j.cad.2014.12.009
PG 13
WC Computer Science, Software Engineering
SC Computer Science
GA CF1TZ
UT WOS:000352332100003
ER
PT J
AU Polivka, TN
Hyer, EJ
Wang, J
Peterson, DA
AF Polivka, Thomas N.
Hyer, Edward J.
Wang, Jun
Peterson, David A.
TI First Global Analysis of Saturation Artifacts in the VIIRS Infrared
Channels and the Effects of Sample Aggregation
SO IEEE GEOSCIENCE AND REMOTE SENSING LETTERS
LA English
DT Article
DE Fires; infrared measurements; nightfire; remote sensing; sample
aggregation; saturation; Suomi National Polar-orbiting Partnership
(S-NPP); Visible Infrared Imaging Radiometer Suite (VIIRS)
ID SATELLITE
AB Unlike previous spaceborne Earth observing sensors, the Visible Infrared Imaging Radiometer Suite (VIIRS) employs onboard sample aggregation to reduce downlink bandwidth requirements and preserve spatial resolution across the scan. To examine the potentially deleterious impacts of onboard sample aggregation when encountering detector saturation, nearly four months of the National Oceanic and Atmospheric Administration's Nightfire product are analyzed, which contains a subset of the hottest observed nighttime pixels. An empirical method for identifying saturation is devised. The M12 band (3.69 mu m) is the most frequently saturating band with 0.15% of the Nightfire pixels at or near the similar to 359-K detector saturation limit; some saturation is also found in M14, M15, and M16 (8.58, 10.74, and 11.86 mu m). Artifacts consistent with detector saturation are seen with M12 temperatures as low as 330 K in the scene center. This partial saturation and aggregation influence must be considered when using VIIRS radiances for quantitative characterization of hot emission sources such as fires and gas flaring.
C1 [Polivka, Thomas N.; Wang, Jun] Univ Nebraska, Dept Earth & Atmospher Sci, Lincoln, NE 68588 USA.
[Hyer, Edward J.] Naval Res Lab, Marine Meteorol Div, Monterey, CA 93943 USA.
[Peterson, David A.] CNR, Monterey, CA 93943 USA.
RP Polivka, TN (reprint author), Univ Nebraska, Dept Earth & Atmospher Sci, Lincoln, NE 68588 USA.
EM thomas.polivka@huskers.unl.edu; edward.hyer@nrlmry.navy.mil;
jwang7@unl.edu; david.peterson.ctr@nrlmry.navy.mil
RI Hyer, Edward/E-7734-2011; peterson, david/L-2350-2016; Wang,
Jun/A-2977-2008
OI Hyer, Edward/0000-0001-8636-2026; Wang, Jun/0000-0002-7334-0490
FU National Aeronautics and Space Administration (NASA); Applied Science
Program [NNX11AJ03G]; NASA Nebraska Space Grant
FX The work of J. Wang was supported by the National Aeronautics and Space
Administration (NASA) S-NPP Program and Applied Science Program under
Grant NNX11AJ03G managed by John A. Haynes and Lawrence A. Friedl. T.
Polivka also acknowledges the support from the NASA Nebraska Space
Grant.
NR 11
TC 1
Z9 1
U1 0
U2 11
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1545-598X
EI 1558-0571
J9 IEEE GEOSCI REMOTE S
JI IEEE Geosci. Remote Sens. Lett.
PD JUN
PY 2015
VL 12
IS 6
BP 1262
EP 1266
DI 10.1109/LGRS.2015.2392098
PG 5
WC Geochemistry & Geophysics; Engineering, Electrical & Electronic; Remote
Sensing; Imaging Science & Photographic Technology
SC Geochemistry & Geophysics; Engineering; Remote Sensing; Imaging Science
& Photographic Technology
GA CF5CB
UT WOS:000352571800021
ER
PT J
AU Heitmeyer, CL
Pickett, M
Leonard, EI
Archer, MM
Ray, I
Aha, DW
Trafton, JG
AF Heitmeyer, Constance L.
Pickett, Marc
Leonard, Elizabeth I.
Archer, Myla M.
Ray, Indrakshi
Aha, David W.
Trafton, J. Gregory
TI Building high assurance human-centric decision systems
SO AUTOMATED SOFTWARE ENGINEERING
LA English
DT Article
DE High assurance; Formal models; Formal methods; Adaptive agents;
Cognitive models; Formal model synthesis from scenarios; User model
synthesis; User scenarios; System and software requirements
ID REQUIREMENTS SPECIFICATIONS; MODEL CHECKING; SUPERVISORY CONTROL;
BEHAVIOR MODELS; SCENARIOS
AB Many future decision support systems will be human-centric, i.e., require substantial human oversight and control. Because these systems often provide critical services, high assurance is needed that they satisfy their requirements. This paper, the product of an interdisciplinary research team of experts in formal methods, adaptive agents, and cognitive science, addresses this problem by proposing a new process for developing high assurance human-centric decision systems. This process uses AI (artificial intelligence) methods-i.e., a cognitive model to predict human behavior and an adaptive agent to assist the human-to improve system performance, and software engineering methods-i.e., formal modeling and analysis-to obtain high assurance that the system behaves as intended. The paper describes a new method for synthesizing a formal system model from Event Sequence Charts, a variant of Message Sequence Charts, and a Mode Diagram, a specification of system modes and mode transitions. It also presents results of a new pilot study investigating the optimal level of agent assistance for different users in which the agent design was evaluated using synthesized user models. Finally, it reviews a cognitive model for predicting human overload in complex human-centric systems. To illustrate the development process and our new techniques, we describe a human-centric decision system for controlling unmanned vehicles.
C1 [Heitmeyer, Constance L.; Leonard, Elizabeth I.; Archer, Myla M.; Aha, David W.; Trafton, J. Gregory] Naval Res Lab, Washington, DC 20375 USA.
[Pickett, Marc] Google Inc, Mountain View, CA 94043 USA.
[Ray, Indrakshi] Colorado State Univ, Ft Collins, CO 80523 USA.
RP Heitmeyer, CL (reprint author), Naval Res Lab, Washington, DC 20375 USA.
EM constance.heitmeyer@nrl.navy.mil; marcpickett1@gmail.com;
elizabeth.leonard@nrl.navy.mil; myla.archer@nrl.navy.mil;
iray@cs.colostate.edu; david.aha@nrl.navy.mil; greg.trafton@nrl.navy.mil
OI Heitmeyer, Constance/0000-0001-7942-9309
FU Office of Naval Research
FX We gratefully acknowledge the contributions of Len Breslow to the
research on cognitive models, of Carolyn Gasarch of NRL who built the
prototype model synthesis tool, and of Michael Thomas of the University
of Maryland who applied the synthesis tool to the UGV applications. This
research is supported by the Office of Naval Research.
NR 45
TC 1
Z9 1
U1 1
U2 16
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0928-8910
EI 1573-7535
J9 AUTOMAT SOFTW ENG
JI Automat. Softw. Eng.
PD JUN
PY 2015
VL 22
IS 2
SI SI
BP 159
EP 197
DI 10.1007/s10515-014-0157-z
PG 39
WC Computer Science, Software Engineering
SC Computer Science
GA CE0EI
UT WOS:000351476900003
ER
PT J
AU Uhan, NA
AF Uhan, Nelson A.
TI Stochastic linear programming games with concave preferences
SO EUROPEAN JOURNAL OF OPERATIONAL RESEARCH
LA English
DT Article
DE Game theory; Stochastic cooperative game
ID INVENTORY CENTRALIZATION GAMES; RISK-AVERSE NEWSVENDOR; LOT-SIZING
GAMES; COOPERATIVE GAMES; COHERENT MEASURES; COST ALLOCATION; BALANCED
GAMES; CORE; OPTIMIZATION; MODELS
AB We study stochastic linear programming games: a class of stochastic cooperative games whose payoffs under any realization of uncertainty are determined by a specially structured linear program. These games can model a variety of settings, including inventory centralization and cooperative network fortification. We focus on the core of these games under an allocation scheme that determines how payoffs are distributed before the uncertainty is realized, and allows for arbitrarily different distributions for each realization of the uncertainty. Assuming that each player's preferences over random payoffs are represented by a concave monetary utility functional, we prove that these games have a nonempty core. Furthermore, by establishing a connection between stochastic linear programming games, linear programming games and linear semi-infinite programming games, we show that an allocation in the core can be computed efficiently under some circumstances. Published by Elsevier B.V.
C1 US Naval Acad, Dept Math, Annapolis, MD 21402 USA.
RP Uhan, NA (reprint author), US Naval Acad, Dept Math, Annapolis, MD 21402 USA.
EM uhan@usna.edu
FU Air Force Office of Scientific Research [12RSL027]
FX The author thanks the associate editor and two anonymous referees for
their helpful feedback, which improved this paper considerably. This
research was supported by the Air Force Office of Scientific Research
(Grant no. 12RSL027).
NR 58
TC 1
Z9 1
U1 2
U2 13
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0377-2217
EI 1872-6860
J9 EUR J OPER RES
JI Eur. J. Oper. Res.
PD JUN 1
PY 2015
VL 243
IS 2
BP 637
EP 646
DI 10.1016/j.ejor.2014.12.025
PG 10
WC Management; Operations Research & Management Science
SC Business & Economics; Operations Research & Management Science
GA CD1KW
UT WOS:000350834800026
ER
PT J
AU Rong, CC
Barnes, PN
Levin, GA
Miller, JD
Santosusso, DJ
Fitzpatrick, BK
AF Rong, Charles C.
Barnes, Paul N.
Levin, George A.
Miller, Jason D.
Santosusso, Daniel J.
Fitzpatrick, Brian K.
TI Investigation of the Relaxation of Persistent Current in Superconducting
Closed Loops Made Out of YBCO Coated Conductors
SO IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
LA English
DT Article
DE Coated conductor; current sweep reversal method; MAGLEV; MRI; persistent
current; relaxation rate; SMES; 2GHTS
ID MAGNETIC-FIELD; MODE MAGNET; FLUX-CREEP
AB Coated conductors allow the fabrication of closed superconducting loops of arbitrary size. Various mechanisms can play a role in the decay of a persistent current in one such loop and in an assembly of multiple loops magnetically coupled with each other. We report recent experimental results on the relaxation rate of the persistent current in an assembly of closed superconducting loops made out of the currently manufactured coated conductors. One of the main goals of this study is to find the effective ways to control the relaxation rate so as to make it small enough to enable such high temperature persistent magnets to be considered as potential alternatives for energy storage, MRI magnets, and magnetic levitation applications. Here we report the effect of appropriately modified current sweep reversal method on the relaxation rate.
C1 [Rong, Charles C.; Barnes, Paul N.] Army Res Lab, Adelphi, MD 20783 USA.
[Levin, George A.] Florida Inst Technol, Dept Phys & Space Sci, Melbourne, FL 32901 USA.
[Miller, Jason D.; Santosusso, Daniel J.; Fitzpatrick, Brian K.] Naval Surface Warfare Ctr, Carderock Div, Philadelphia, PA 19112 USA.
RP Rong, CC (reprint author), Army Res Lab, Adelphi, MD 20783 USA.
EM charles.c.rong.civ@mail.mil
FU Army Research Laboratory
FX This project was supported by the Army Research Laboratory.
NR 22
TC 0
Z9 0
U1 0
U2 15
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1051-8223
EI 1558-2515
J9 IEEE T APPL SUPERCON
JI IEEE Trans. Appl. Supercond.
PD JUN
PY 2015
VL 25
IS 3
AR 8200805
DI 10.1109/TASC.2014.2376173
PG 5
WC Engineering, Electrical & Electronic; Physics, Applied
SC Engineering; Physics
GA CC4VH
UT WOS:000350351900028
ER
PT J
AU Fiorini, SR
Carbonera, JL
Goncalves, P
Jorge, VAM
Rey, VF
Haidegger, T
Abel, M
Redfield, SA
Balakirsky, S
Ragavan, V
Li, H
Schlenoff, C
Prestes, E
AF Fiorini, Sandro Rama
Carbonera, Joel Luis
Goncalves, Paulo
Jorge, Vitor A. M.
Rey, Vitor Fortes
Haidegger, Tamas
Abel, Mara
Redfield, Signe A.
Balakirsky, Stephen
Ragavan, Veera
Li, Howard
Schlenoff, Craig
Prestes, Edson
TI Extensions to the core ontology for robotics and automation
SO ROBOTICS AND COMPUTER-INTEGRATED MANUFACTURING
LA English
DT Article
DE Ontologies for robotics and automation; Ontology-based standards; Core
ontology; Ontology engineering; Knowledge representation
AB The working group Ontologies for Robotics and Automation, sponsored by the IEEE Robotics & Automation Society, recently proposed a Core Ontology for Robotics and Automation (CORA). This ontology was developed to provide an unambiguous definition of core notions of robotics and related topics. It is based on SUMO, a top-level ontology of general concepts, and on ISO 8373:2012 standard, developed by the ISO/TC184/SC2 Working Group, which defines in natural language important terms in the domain of Robotics and Automation (R&A). In this paper, we introduce a set of ontologies that complement CORA with notions such as industrial design and positioning. We also introduce updates to CORA in order to provide more ontologically sound representations of autonomy and of robot parts. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Fiorini, Sandro Rama; Carbonera, Joel Luis; Jorge, Vitor A. M.; Rey, Vitor Fortes; Abel, Mara; Prestes, Edson] Univ Fed Rio Grande do Sul, Inst Inforrnat, Porto Alegre, RS, Brazil.
[Goncalves, Paulo] Polytechn Inst Castelo Branco, Sch Technol, Castelo Branco, Portugal.
[Goncalves, Paulo] Univ Lisbon, Inst Super Tecn, LAETA, IDMEC, P-1699 Lisbon, Portugal.
[Haidegger, Tamas] Obuda Univ, Budapest, Hungary.
[Haidegger, Tamas] ACMIT, Vienna, Austria.
[Redfield, Signe A.] Naval Res Lab, Washington, DC 20375 USA.
[Balakirsky, Stephen] Georgia Tech Res Inst, Robot & Autonomous Syst Div, Atlanta, GA USA.
[Ragavan, Veera] Monash Univ, Sch Engn, Selangor, Malaysia.
[Li, Howard] Univ New Brunswick, Dept Elect & Comp Engn, Fredericton, NB E3B 5A3, Canada.
[Schlenoff, Craig] NIST, Intelligent Syst Div, Gaithersburg, MD USA.
RP Fiorini, SR (reprint author), Univ Fed Rio Grande do Sul, Inst Inforrnat, Porto Alegre, RS, Brazil.
EM srfiorini@inf.ufrgs.br; jlcarbonera@inf.ufrgs.br;
paulo.goncalves@ipcb.pt; vamjorge@inf.ufrgs.br; vfrey@inf.ufrgs.br;
haidegger@ieee.org; marabel@inf.ufrgs.br; signe@ieee.org;
stephen.balakirsky@gtri.gatech.edu; veera.ragavan@monash.edu;
vhoward@unb.ca; craig.schlenoff@nist.gov; edson.prestes@ieee.org
RI Goncalves, Paulo/E-5640-2012; Abel, Mara/L-5392-2015;
OI Goncalves, Paulo/0000-0002-8692-7338; Abel, Mara/0000-0002-9589-2616;
Carbonera, Joel Luis/0000-0002-4499-3601; Fiorini, Sandro
Rama/0000-0003-1499-3173; Haidegger, Tamas/0000-0003-1402-1139
FU IEEE Robotics and Automation Society; FCT, through IDMEC, LAETA
[Pest-OE/EME/LA0022]; Brazilian CNPq; Petrobras [PRH PB-217]; Hungarian
Eotvos Scholarship
FX The IEEE-SC WG is supported by the IEEE Robotics and Automation Society.
This work is partially supported by FCT, through IDMEC, under LAETA
Pest-OE/EME/LA0022. The authors acknowledge the support of Brazilian
CNPq, Petrobras PRH PB-217 and the Hungarian Eotvos Scholarship. T.H. is
a Bolyai Fellow of the Hungarian Academy of Sciences.
NR 25
TC 4
Z9 4
U1 2
U2 29
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0736-5845
EI 1879-2537
J9 ROBOT CIM-INT MANUF
JI Robot. Comput.-Integr. Manuf.
PD JUN
PY 2015
VL 33
SI SI
BP 3
EP 11
DI 10.1016/j.rcim.2014.08.004
PG 9
WC Computer Science, Interdisciplinary Applications; Engineering,
Manufacturing; Robotics
SC Computer Science; Engineering; Robotics
GA CB6GL
UT WOS:000349725400002
ER
PT J
AU Hartley, DJ
Riley, MA
Wang, X
Miller, S
Janssens, RVF
Paul, ES
Rees, JM
Simpson, J
Riedinger, LL
Ayangeakaa, AD
Carpenter, MP
Chiara, CJ
Garg, U
Hampson, P
Hoffman, CR
Kondev, FG
Lauritsen, T
Mason, PJR
Matta, JT
Nolan, PJ
Ollier, J
Petri, M
Radford, DC
Revill, JP
Zhu, S
Ragnarsson, I
AF Hartley, D. J.
Riley, M. A.
Wang, X.
Miller, S.
Janssens, R. V. F.
Paul, E. S.
Rees, J. M.
Simpson, J.
Riedinger, L. L.
Ayangeakaa, A. D.
Carpenter, M. P.
Chiara, C. J.
Garg, U.
Hampson, P.
Hoffman, C. R.
Kondev, F. G.
Lauritsen, T.
Mason, P. J. R.
Matta, J. T.
Nolan, P. J.
Ollier, J.
Petri, M.
Radford, D. C.
Revill, J. P.
Zhu, S.
Ragnarsson, I.
TI Persistence of collective behavior at high spin in the N=88 nucleus
Tb-153
SO PHYSICAL REVIEW C
LA English
DT Article
ID STRUCTURAL-CHANGES; BAND-STRUCTURES; YB-158; TERMINATION; ALIGNMENTS;
DY-154; SHAPE
AB Excited states in the N = 88 nucleus Tb-153 were observed up to spin similar to 40 in an experiment utilizing the Gammasphere array. The Tb-153 states were populated in a weak alpha 4n evaporation channel of the Cl-37 + Sn-124 reaction. Two previously known sequences were extended to higher spins, and a new decoupled structure was identified. The pi h(11/2) band was observed in the spin region where other N = 88 isotopes exhibit effects of prolate to oblate shape changes leading to band termination along the yrast line, whereas Tb-153 displays a persistent collective behavior. However, minor perturbations of the very highest state in both signatures of this h(11/2) band are observed, which perhaps signal the start of the transition towards band termination.
C1 [Hartley, D. J.] US Naval Acad, Dept Phys, Annapolis, MD 21402 USA.
[Riley, M. A.; Wang, X.; Miller, S.] Florida State Univ, Dept Phys, Tallahassee, FL 32306 USA.
[Janssens, R. V. F.; Carpenter, M. P.; Chiara, C. J.; Hoffman, C. R.; Lauritsen, T.; Zhu, S.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
[Paul, E. S.; Rees, J. M.; Hampson, P.; Nolan, P. J.; Revill, J. P.] Univ Liverpool, Oliver Lodge Lab, Liverpool L69 7ZE, Merseyside, England.
[Simpson, J.; Mason, P. J. R.; Ollier, J.] Daresbury Lab, STFC, Warrington WA4 4AD, Cheshire, England.
[Riedinger, L. L.] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
[Ayangeakaa, A. D.; Garg, U.; Matta, J. T.] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 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.
[Petri, M.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Nucl Sci, Berkeley, CA 94720 USA.
[Radford, D. C.] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
[Ragnarsson, I.] Lund Univ, LTH, Div Mat Phys, S-22100 Lund, Sweden.
RP Hartley, DJ (reprint author), US Naval Acad, Dept Phys, Annapolis, MD 21402 USA.
RI Ayangeakaa, Akaa/F-3683-2015; Carpenter, Michael/E-4287-2015; Hoffman,
Calem/H-4325-2016; Petri, Marina/H-4630-2016
OI Ayangeakaa, Akaa/0000-0003-1679-3175; Carpenter,
Michael/0000-0002-3237-5734; Hoffman, Calem/0000-0001-7141-9827; Petri,
Marina/0000-0002-3740-6106
FU National Science Foundation [PHY-1203100, PHY-0754674, PHY-1419765];
U.S. Department of Energy, Office of Nuclear Physics
[DE-AC02-06CH11357]; 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
H. Q. Jin for his software support. This work is funded by the National
Science Foundation under Grants No. PHY-1203100 (USNA), No. PHY-0754674
(FSU), and No. PHY-1419765 (ND), as well as by the U.S. Department of
Energy, Office of Nuclear Physics, under Contract No. DE-AC02-06CH11357
(ANL), and the United Kingdom Science and Technology Facilities Council.
This research used resources of ANL's ATLAS facility, which is a DOE
Office of Science user facility.
NR 21
TC 0
Z9 0
U1 0
U2 4
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 MAY 29
PY 2015
VL 91
IS 5
AR 057301
DI 10.1103/PhysRevC.91.057301
PG 4
WC Physics, Nuclear
SC Physics
GA CJ2KF
UT WOS:000355312500005
ER
PT J
AU Tomer, D
Rajput, S
Hudy, LJ
Li, CH
Li, L
AF Tomer, D.
Rajput, S.
Hudy, L. J.
Li, C. H.
Li, L.
TI Inhomogeneity in barrier height at graphene/Si (GaAs) Schottky junctions
SO NANOTECHNOLOGY
LA English
DT Article
DE graphene; Schottky barrier; STM
ID WIDE TEMPERATURE-RANGE; ELECTRON-TRANSPORT; WORK FUNCTION; DIODES;
SILICON; TRANSISTOR; DEPENDENCE; INTERFACE; CONTACTS; DETECTOR
AB Graphene (Gr) interfaced with a semiconductor forms a Schottky junction with rectifying properties, however, fluctuations in the Schottky barrier height are often observed. In this work, Schottky junctions are fabricated by transferring chemical vapor deposited monolayer Gr onto n-type Si and GaAs substrates. Temperature dependence of the barrier height and ideality factor are obtained by current-voltage measurements between 215 and 350 K. An increase in the zero bias barrier height and decrease in the ideality factor are observed with increasing temperature for both junctions. Such behavior is attributed to barrier inhomogeneities that arise from interfacial disorders as revealed by scanning tunneling microscopy/spectroscopy. Assuming a Gaussian distribution of the barrier heights, mean values of 1.14 +/- 0.14 eV and 0.76 +/- 0.10 eV are found for Gr/Si and Gr/GaAs junctions, respectively. These findings resolve the origin of barrier height inhomogeneities in these Schottky junctions.
C1 [Tomer, D.; Rajput, S.; Hudy, L. J.; Li, L.] Univ Wisconsin, Dept Phys, Milwaukee, WI 53211 USA.
[Li, C. H.] Naval Res Lab, Washington, DC 20375 USA.
RP Tomer, D (reprint author), Univ Wisconsin, Dept Phys, Milwaukee, WI 53211 USA.
EM dtomer@uwm.edu
FU US Department of Energy, Office of Basic Energy Sciences, Division of
Materials Sciences and Engineering [DE-FG02-07ER46228]
FX Research supported by the US Department of Energy, Office of Basic
Energy Sciences, Division of Materials Sciences and Engineering under
Award DE-FG02-07ER46228.
NR 45
TC 4
Z9 4
U1 10
U2 51
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0957-4484
EI 1361-6528
J9 NANOTECHNOLOGY
JI Nanotechnology
PD MAY 29
PY 2015
VL 26
IS 21
AR 215702
DI 10.1088/0957-4484/26/21/215702
PG 7
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary;
Physics, Applied
SC Science & Technology - Other Topics; Materials Science; Physics
GA CI2TB
UT WOS:000354598800013
PM 25930976
ER
PT J
AU Thompson, DR
Seidel, FC
Gao, BC
Gierach, MM
Green, RO
Kudela, RM
Mouroulis, P
AF Thompson, David R.
Seidel, Felix C.
Gao, Bo Cai
Gierach, Michelle M.
Green, Robert O.
Kudela, Raphael M.
Mouroulis, Pantazis
TI Optimizing irradiance estimates for coastal and inland water imaging
spectroscopy
SO GEOPHYSICAL RESEARCH LETTERS
LA English
DT Article
DE imaging spectroscopy; phytoplankton; atmospheric correction; solar
irradiance
ID HYPERSPECTRAL IMAGER; SPECTROMETER; CALIBRATION; AIRBORNE; DESIGN; ATLAS
AB Next generation orbital imaging spectrometers, with advanced global remote sensing capabilities, propose to address outstanding ocean science questions related to coastal and inland water environments. These missions require highly accurate characterization of solar irradiance in the critical 380-600nm spectral range. However, the irradiance in this spectral region is temporally variable and difficult to measure directly, leading to considerable variance between different models. Here we optimize an irradiance estimate using data from the NASA airborne Portable Remote Imaging Spectrometer (PRISM), leveraging spectrally smooth in-scene targets. We demonstrate improved retrievals for both PRISM and the Next Generation Airborne Visible Infrared Imaging Spectrometer.
C1 [Thompson, David R.; Seidel, Felix C.; Gierach, Michelle M.; Green, Robert O.; Mouroulis, Pantazis] CALTECH, Jet Prop Lab, Pasadena, CA 91125 USA.
[Gao, Bo Cai] US Naval Res Lab, Washington, DC USA.
[Kudela, Raphael M.] Univ Calif Santa Cruz, Santa Cruz, CA 95064 USA.
RP Thompson, DR (reprint author), CALTECH, Jet Prop Lab, Pasadena, CA 91125 USA.
EM david.r.thompson@jpl.nasa.gov
OI Seidel, Felix/0000-0002-4282-2198; Thompson, David/0000-0003-1100-7550
FU JPL Earth System Science Formulation office
FX The optimized irradiance spectrum and all PRISM and AVIRIS-NG radiance
spectra are available at http://prism.jpl.nasa.gov and
http://aviris-ng.jpl.nasa.gov. Data for Figures 3-6 are provided as
supporting information. This research was performed at the Jet
Propulsion Laboratory, California Institute of Technology, under a
contract with the National Aeronautics and Space Administration. We
thank the JPL PRISM team: D. Cohen, K. Balasubramanian, S. Leland, F.
Loya, D. Moore, D. Randall, J. Rodriguez, C. Sarture, E. Urquiza, V.
White, and K. Yee. We thank D. A. Roberts, E. Pennington, and B. Bue for
assistance with AVIRIS-NG ground truth data. K. Hayashi Negrey of the
University of California, Santa Cruz provided invaluable support with
the collection of in situ reflectance data. We thank J. M. Fontenla for
his counsel and assistance. We also thank B. Mateer, I. McCubbin, and C.
V. White, and acknowledge the financial support of the JPL Earth System
Science Formulation office. Copyright 2015 California Institute of
Technology. All Rights Reserved.
NR 18
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 MAY 28
PY 2015
VL 42
IS 10
BP 4116
EP 4123
DI 10.1002/2015GL063287
PG 8
WC Geosciences, Multidisciplinary
SC Geology
GA CL0KJ
UT WOS:000356631300061
ER
PT J
AU Shanks, AL
MacMahan, J
Morgan, SG
Reniers, AJHM
Jarvis, M
Brown, J
Fujimura, A
Griesemer, C
AF Shanks, Alan L.
MacMahan, Jamie
Morgan, Steven G.
Reniers, Ad J. H. M.
Jarvis, Marley
Brown, Jenna
Fujimura, Atsushi
Griesemer, Chris
TI Transport of larvae and detritus across the surf zone of a steep
reflective pocket beach
SO MARINE ECOLOGY PROGRESS SERIES
LA English
DT Article
DE Streaming; Cyprids; Competent larvae; Precompetent larvae; Detritus;
Reflective beach; Cross-shore exchange
ID GRAVITY-WAVES; VARIABILITY; SHELF; RECRUITMENT; DRIVEN; MODEL; FLOW
AB Larvae of many intertidal species develop offshore and must cross the surf zone to complete their onshore migration to adult habitats. Depending on hydrodynamics, the surf zone may limit this migration, especially on reflective rocky shores. As a logistically tractable analog of a rocky shore environment, we carried out a comprehensive biological and physical study of the hydrodynamics of a steep reflective sandy beach. Holoplankton and precompetent larval invertebrates were much less abundant within the surf zone than offshore, and their concentrations inside and outside the surf zone were not significantly correlated, suggesting that they were not entering the surf zone. Persistent offshore flow throughout the water column at the outer edge of the surf zone may prevent these organisms from entering the surf zone. In contrast, the concentrations of detritus and a competent larval invertebrate (i.e. cyprids), while also not significantly correlated with concentrations offshore, were frequently more concentrated in the surf zone than offshore. Within the surf zone, the concentration of detritus was significantly correlated with concentrations of competent larval invertebrates (barnacles, gastropods, polychaetes, and bopyrid amphipod) and organisms that may be associated with detritus (amphipods and harpacticoid copepods). These concentrations were significantly negatively correlated with average daily wave height. We hypothesize that detritus and larvae enter the surf zone near the bottom during calm wave conditions by a process of near-bottom streaming. Near-bottom streaming is associated with all surf zones and may be a general mechanism for onshore transport of larvae close to the coast.
C1 [Shanks, Alan L.; Jarvis, Marley] Univ Oregon, Oregon Inst Marine Biol, Charleston, OR 97420 USA.
[MacMahan, Jamie; Brown, Jenna] Naval Postgrad Sch, Dept Oceanog, Monterey, CA 93943 USA.
[Morgan, Steven G.; Griesemer, Chris] Univ Calif Davis, Dept Environm Sci & Policy, Bodega Marine Lab, Bodega Bay, CA 94923 USA.
[Reniers, Ad J. H. M.; Fujimura, Atsushi] Delft Univ Technol, Dept Hydraul Engn, Civil Engn & Geosci, NL-2628 CN Delft, Netherlands.
RP Shanks, AL (reprint author), Univ Oregon, Oregon Inst Marine Biol, POB 5389, Charleston, OR 97420 USA.
EM ashanks@uoregon.edu
FU National Science Foundation grant (NSF-OCE) [092735]
FX This collaborative research effort was supported by a National Science
Foundation grant (NSF-OCE#092735) to A.L.S., S.G.M., J.M., and
A.J.H.M.R. Field and laboratory assistance was provided by R. Cowen, C.
Gon, M. Hogan, J. Noseff, E. Thornton, D. Trovillion, D. Watson, and K.
Wyckoff. This is a contribution of the Oregon Institute of Marine
Biology, the Bodega Marine Laboratory, the Naval Postgraduate School and
Rosenstiel School of Marine and Atmospheric Science.
NR 39
TC 2
Z9 2
U1 3
U2 21
PU INTER-RESEARCH
PI OLDENDORF LUHE
PA NORDBUNTE 23, D-21385 OLDENDORF LUHE, GERMANY
SN 0171-8630
EI 1616-1599
J9 MAR ECOL PROG SER
JI Mar. Ecol.-Prog. Ser.
PD MAY 28
PY 2015
VL 528
BP 71
EP 86
DI 10.3354/meps11223
PG 16
WC Ecology; Marine & Freshwater Biology; Oceanography
SC Environmental Sciences & Ecology; Marine & Freshwater Biology;
Oceanography
GA CK2WR
UT WOS:000356075600006
ER
PT J
AU Cargill, PJ
Warren, HP
Bradshaw, SJ
AF Cargill, P. J.
Warren, H. P.
Bradshaw, S. J.
TI Modelling nanoflares in active regions and implications for coronal
heating mechanisms
SO PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL
AND ENGINEERING SCIENCES
LA English
DT Review
DE solar corona; magnetic reconnection; emission measure
ID EMISSION MEASURE DISTRIBUTIONS; ALFVEN-WAVE TURBULENCE; SOLAR CORONA;
X-RAY; SPATIAL-RESOLUTION; SCALING LAWS; LOOPS; DYNAMICS; CORES; DENSITY
AB Recent observations from the Hinode and Solar Dynamics Observatory spacecraft have provided major advances in understanding the heating of solar active regions (ARs). For ARs comprising many magnetic strands or sub-loops heated by small, impulsive events (nanoflares), it is suggested that (i) the time between individual nanoflares in a magnetic strand is 500-2000 s, (ii) a weak 'hot' component (more than 106.6 K) is present, and (iii) nanoflare energies may be as low as a few 1023 ergs. These imply small heating events in a stressed coronal magnetic field, where the time between individual nanoflares on a strand is of order the cooling time. Modelling suggests that the observed properties are incompatible with nanoflare models that require long energy build-up (over 10 s of thousands of seconds) and with steady heating.
C1 [Cargill, P. J.] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, Space & Atmospher Phys, London SW7 2BW, England.
[Cargill, P. J.] Univ St Andrews, Sch Math & Stat, St Andrews KY16 9SS, Fife, Scotland.
[Warren, H. P.] Naval Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Bradshaw, S. J.] Rice Univ, Dept Phys & Astron, Houston, TX 77005 USA.
RP Cargill, PJ (reprint author), Univ London Imperial Coll Sci Technol & Med, Blackett Lab, Space & Atmospher Phys, London SW7 2BW, England.
EM p.cargill@imperial.ac.uk
FU NASA's Hinode programme; NASA [NNX11AF13G]
FX H.P.W. was supported by NASA's Hinode programme. S.J.B. thanks NASA for
support under grant no. NNX11AF13G.
NR 69
TC 5
Z9 5
U1 2
U2 7
PU ROYAL SOC
PI LONDON
PA 6-9 CARLTON HOUSE TERRACE, LONDON SW1Y 5AG, ENGLAND
SN 1364-503X
EI 1471-2962
J9 PHILOS T R SOC A
JI Philos. Trans. R. Soc. A-Math. Phys. Eng. Sci.
PD MAY 28
PY 2015
VL 373
IS 2042
AR 20140260
DI 10.1098/rsta.2014.0260
PG 15
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA CG5BL
UT WOS:000353304600004
ER
PT J
AU Klingaman, NP
Woolnough, SJ
Jiang, XN
Waliser, D
Xavier, PK
Petch, J
Caian, M
Hannay, C
Kim, D
Ma, HY
Merryfield, WJ
Miyakawa, T
Pritchard, M
Ridout, JA
Roehrig, R
Shindo, E
Vitart, F
Wang, HL
Cavanaugh, NR
Mapes, BE
Shelly, A
Zhang, GJ
AF Klingaman, Nicholas P.
Woolnough, Steven J.
Jiang, Xianan
Waliser, Duane
Xavier, Prince K.
Petch, Jon
Caian, Mihaela
Hannay, Cecile
Kim, Daehyun
Ma, Hsi-Yen
Merryfield, William J.
Miyakawa, Tomoki
Pritchard, Mike
Ridout, James A.
Roehrig, Romain
Shindo, Eiki
Vitart, Frederic
Wang, Hailan
Cavanaugh, Nicholas R.
Mapes, Brian E.
Shelly, Ann
Zhang, Guang J.
TI Vertical structure and physical processes of the Madden-Julian
oscillation: Linking hindcast fidelity to simulated diabatic heating and
moistening
SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
LA English
DT Article
DE Madden-Julian oscillation; tropical convection; diabatic heating; model
evaluation; hindcasts; diabatic moistening
ID TEMPERATURE-GRADIENT APPROXIMATION; TROPICAL INTRASEASONAL OSCILLATION;
COMMUNITY ATMOSPHERE MODEL; MULTIVARIATE MJO INDEX; 30-50 DAY
VARIABILITY; GLOBAL CLIMATE MODEL; PART I; SYSTEMATIC-ERRORS; FORECAST
SYSTEM; SUMMER MONSOON
AB Many theories for the Madden-Julian oscillation (MJO) focus on diabatic processes, particularly the evolution of vertical heating and moistening. Poor MJO performance in weather and climate models is often blamed on biases in these processes and their interactions with the large-scale circulation. We introduce one of the three components of a model evaluation project, which aims to connect MJO fidelity in models to their representations of several physical processes, focusing on diabatic heating and moistening. This component consists of 20day hindcasts, initialized daily during two MJO events in winter 2009-2010. The 13 models exhibit a range of skill: several have accurate forecasts to 20days lead, while others perform similarly to statistical models (8-11days). Models that maintain the observed MJO amplitude accurately predict propagation, but not vice versa. We find no link between hindcast fidelity and the precipitation-moisture relationship, in contrast to other recent studies. There is also no relationship between models' performance and the evolution of their diabatic heating profiles with rain rate. A more robust association emerges between models' fidelity and net moistening: the highest-skill models show a clear transition from low-level moistening for light rainfall to midlevel moistening at moderate rainfall and upper level moistening for heavy rainfall. The midlevel moistening, arising from both dynamics and physics, may be most important. Accurately representing many processes may be necessary but not sufficient for capturing the MJO, which suggests that models fail to predict the MJO for a broad range of reasons and limits the possibility of finding a panacea.
C1 [Klingaman, Nicholas P.; Woolnough, Steven J.] Univ Reading, Natl Ctr Atmospher Sci, Reading, Berks, England.
[Klingaman, Nicholas P.; Woolnough, Steven J.] Univ Reading, Dept Meteorol, Reading, Berks, England.
[Jiang, Xianan; Waliser, Duane] Univ Calif Los Angeles, Joint Inst Reg Earth Syst Sci & Engn, Los Angeles, CA USA.
[Jiang, Xianan; Waliser, Duane] CALTECH, Jet Prop Lab, Pasadena, CA USA.
[Xavier, Prince K.; Petch, Jon; Shelly, Ann] UK Met Off, Exeter, Devon, England.
[Caian, Mihaela] Swedish Meteorol & Hydrol Inst, Rossby Ctr, S-60176 Norrkoping, Sweden.
[Hannay, Cecile] Natl Ctr Atmospher Res, Boulder, CO 80307 USA.
[Kim, Daehyun] Univ Washington, Dept Atmospher Sci, Seattle, WA 98195 USA.
[Ma, Hsi-Yen] Lawrence Livermore Natl Lab, Program Climate Model Diag & Intercomparison, Livermore, CA USA.
[Merryfield, William J.] Environm Canada, Canadian Ctr Climate Modelling & Anal, Victoria, BC, Canada.
[Miyakawa, Tomoki] Japan Agcy Marine Earth Sci & Technol, Dept Coupled Ocean Atmosphere Land Proc Res, Yokosuka, Kanagawa 2370061, Japan.
[Miyakawa, Tomoki] Univ Tokyo, Atmosphere & Ocean Res Inst, Tokyo, Japan.
[Pritchard, Mike] Univ Calif Irvine, Dept Earth Syst Sci, Irvine, CA USA.
[Ridout, James A.] Naval Res Lab, Monterey, CA USA.
[Roehrig, Romain] Meteo France, CNRM GAME, Toulouse, France.
[Roehrig, Romain] CNRS, Toulouse, France.
[Shindo, Eiki] Meteorol Res Inst, Tsukuba, Ibaraki 305, Japan.
[Vitart, Frederic] European Ctr Medium Range Weather Forecasts, Reading, Berks, England.
[Wang, Hailan] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Cavanaugh, Nicholas R.; Zhang, Guang J.] Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92093 USA.
[Mapes, Brian E.] Univ Miami, Rosenstiel Sch Marine & Atmospher Sci, Coral Gables, FL 33124 USA.
RP Klingaman, NP (reprint author), Univ Reading, Natl Ctr Atmospher Sci, Reading, Berks, England.
EM n.p.klingaman@reading.ac.uk
RI Klingaman, Nicholas/H-4610-2012; Ma, Hsi-Yen/K-1019-2013
OI Klingaman, Nicholas/0000-0002-2927-9303;
FU National Centre for Atmospheric Science, a collaborative center of the
Natural Environment Research Council [R8/H12/83/001]; NSF Climate and
Large-Scale Dynamics program [AGS-1228302]; NOAA MAPP program
[NA12OAR4310075]; Office of Naval Research [ONRBAA12-001, 0601153N]; NSF
[AGS-1221013, OCI-1053575, AGS-1015964]; Jet Propulsion Laboratory,
California Institute of Technology under National Aeronautics and Space
Administration; National Science Foundation; NASA [NNX13AM18G]; Korea
Meteorological Administration Research and Development Program [CATER
2013-3142]; U.S. DOE as part of the CAPT; U.S. DOE by LLNL
[DE-AC52-07NA27344]; NOAA CGC postdoctoral fellowship; NOAA
[NA11OAR4310098]; DOE [DE-SC0008880]; [ATM-0425247]
FX The complete archive of data produced by this project and analyzed in
this manuscript is freely available for download from
https://earthsystemcog.org/projects/gass-yotc-mip/. The authors are
grateful to Chindong Zhang and three anonymous reviewers for their
comments and suggestions on this manuscript. Nicholas Klingaman and
Steven Woolnough were funded by the National Centre for Atmospheric
Science, a collaborative center of the Natural Environment Research
Council, under contract R8/H12/83/001. Xianan Jiang acknowledges support
by NSF Climate and Large-Scale Dynamics program under award AGS-1228302
and NOAA MAPP program under award NA12OAR4310075. Duane Waliser
acknowledges support from the Office of Naval Research under project
ONRBAA12-001, and NSF AGS-1221013, and the Jet Propulsion Laboratory,
California Institute of Technology, under a contract with the National
Aeronautics and Space Administration. The National Center for
Atmospheric Research is sponsored by the National Science Foundation.
Daehyun Kim appreciates the NASA/GISS modeling group, especially Maxwell
Kelley, Mao-Sung Yao, and Anthony Del Genio, for their invaluable and
unlimited support. Daehyun Kim was supported by the NASA grant
NNX13AM18G and the Korea Meteorological Administration Research and
Development Program under grant CATER 2013-3142. The effort of Hsi-Yen
Ma was funded by the RGCM and ASR programs of the U.S. DOE as part of
the CAPT. This work was performed under the auspices of the U.S. DOE by
LLNL under contract DE-AC52-07NA27344. William Merryfield acknowledges
Jason Cole and Mike Lazare for their roles in producing CanCM4 data and
Woo-Sung Lee for performing the CanCM4 simulations. Tomoki Miyakawa
acknowledges the NICAM and MIROC teams for developing the models; M.
Watanabe, H. Miura, and T. Nasuno for supervising the simulations; N.
Hirota and T. Hashino for assistance in data processing; and a grant of
supercomputing resources from the Earth Simulator Center. Mike Pritchard
was supported by a NOAA CGC postdoctoral fellowship; he thanks Marat
Khairoutdinov for developing and making SPCAM3 available through the
Center for Multiscale Modeling of Atmospheric Processes, a National
Science Foundation (NSF) Science and Technology Center managed by
Colorado State University under cooperative agreement ATM-0425247.
Computing resources for SPCAM3 simulations were provided courtesy of the
Extreme Science and Engineering Discovery Environment, supported by NSF
grant OCI-1053575 under allocation TG-ATM120034. James Ridout gratefully
acknowledges support from the Office of Naval Research program element
0601153N, a grant of computing time from the United States Department of
Defense High Performance Computing Modernization Program, and assistance
from Maria Flatau in preparing the NavGEM1 hindcasts. Frederic Vitart
acknowledges Peter Bechtold for assisting in producing tendency output
from the ECMWF IFS hindcasts. Guang Zhang was supported by NSF
AGS-1015964, NOAA NA11OAR4310098, and DOE DE-SC0008880.
NR 103
TC 15
Z9 15
U1 2
U2 21
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-897X
EI 2169-8996
J9 J GEOPHYS RES-ATMOS
JI J. Geophys. Res.-Atmos.
PD MAY 27
PY 2015
VL 120
IS 10
BP 4690
EP 4717
DI 10.1002/2014JD022374
PG 28
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA CL1IT
UT WOS:000356696800016
ER
PT J
AU Jiang, X
Waliser, DE
Xavier, PK
Petch, J
Klingaman, NP
Woolnough, SJ
Guan, B
Bellon, G
Crueger, T
DeMott, C
Hannay, C
Lin, H
Hu, WT
Kim, D
Lappen, CL
Lu, MM
Ma, HY
Miyakawa, T
Ridout, JA
Schubert, SD
Scinocca, J
Seo, KH
Shindo, E
Song, XL
Stan, C
Tseng, WL
Wang, WQ
Wu, TW
Wu, XQ
Wyser, K
Zhang, GJ
Zhu, HY
AF Jiang, Xianan
Waliser, Duane E.
Xavier, Prince K.
Petch, Jon
Klingaman, Nicholas P.
Woolnough, Steven J.
Guan, Bin
Bellon, Gilles
Crueger, Traute
DeMott, Charlotte
Hannay, Cecile
Lin, Hai
Hu, Wenting
Kim, Daehyun
Lappen, Cara-Lyn
Lu, Mong-Ming
Ma, Hsi-Yen
Miyakawa, Tomoki
Ridout, James A.
Schubert, Siegfried D.
Scinocca, John
Seo, Kyong-Hwan
Shindo, Eiki
Song, Xiaoliang
Stan, Cristiana
Tseng, Wan-Ling
Wang, Wanqiu
Wu, Tongwen
Wu, Xiaoqing
Wyser, Klaus
Zhang, Guang J.
Zhu, Hongyan
TI Vertical structure and physical processes of the Madden-Julian
oscillation: Exploring key model physics in climate simulations
SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
LA English
DT Article
DE Madden-Julian oscillation; general circulation model; moist convection;
multiscale interaction
ID TROPICAL INTRASEASONAL OSCILLATION; CONVECTIVE MOMENTUM TRANSPORT;
GENERAL-CIRCULATION MODEL; MOIST STATIC ENERGY; COUPLED EQUATORIAL
WAVES; TEMPERATURE-GRADIENT APPROXIMATION; SEA-SURFACE TEMPERATURES;
ASIAN SUMMER MONSOON; 1997-98 EL-NINO; TOGA COARE IOP
AB Aimed at reducing deficiencies in representing the Madden-Julian oscillation (MJO) in general circulation models (GCMs), a global model evaluation project on vertical structure and physical processes of the MJO was coordinated. In this paper, results from the climate simulation component of this project are reported. It is shown that the MJO remains a great challenge in these latest generation GCMs. The systematic eastward propagation of the MJO is only well simulated in about one fourth of the total participating models. The observed vertical westward tilt with altitude of the MJO is well simulated in good MJO models but not in the poor ones. Damped Kelvin wave responses to the east of convection in the lower troposphere could be responsible for the missing MJO preconditioning process in these poor MJO models. Several process-oriented diagnostics were conducted to discriminate key processes for realistic MJO simulations. While large-scale rainfall partition and low-level mean zonal winds over the Indo-Pacific in a model are not found to be closely associated with its MJO skill, two metrics, including the low-level relative humidity difference between high- and low-rain events and seasonal mean gross moist stability, exhibit statistically significant correlations with the MJO performance. It is further indicated that increased cloud-radiative feedback tends to be associated with reduced amplitude of intraseasonal variability, which is incompatible with the radiative instability theory previously proposed for the MJO. Results in this study confirm that inclusion of air-sea interaction can lead to significant improvement in simulating the MJO.
C1 [Jiang, Xianan; Waliser, Duane E.; Guan, Bin] Univ Calif Los Angeles, Joint Inst Reg Earth Syst Sci & Engn, Los Angeles, CA 90089 USA.
[Jiang, Xianan; Waliser, Duane E.; Guan, Bin] CALTECH, Jet Prop Lab, Pasadena, CA USA.
[Xavier, Prince K.; Petch, Jon] UK Met Off, Exeter, Devon, England.
[Klingaman, Nicholas P.; Woolnough, Steven J.] Natl Ctr Atmospher Sci, Reading, Berks, England.
[Klingaman, Nicholas P.; Woolnough, Steven J.] Univ Reading, Dept Meteorol, Reading, Berks, England.
[Bellon, Gilles] CNRS, Meteo France, CNRM GAME, Toulouse, France.
[Crueger, Traute] Max Planck Inst Meteorol, Hamburg, Germany.
[DeMott, Charlotte] Colorado State Univ, Dept Atmospher Sci, Ft Collins, CO 80523 USA.
[Hannay, Cecile] Natl Ctr Atmospher Res, Boulder, CO 80307 USA.
[Lin, Hai] Environm Canada, Dorval, PQ, Canada.
[Hu, Wenting] Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Numer Modeling Atmospher Sci & Geop, Beijing, Peoples R China.
[Kim, Daehyun] Columbia Univ, Lamont Doherty Earth Observ, New York, NY USA.
[Lappen, Cara-Lyn] Texas A&M Univ, Dept Atmospher Sci, College Stn, TX USA.
[Lu, Mong-Ming] Cent Weather Bur, Taipei, Taiwan.
[Ma, Hsi-Yen] Lawrence Livermore Natl Lab, Livermore, CA USA.
[Miyakawa, Tomoki] Japan Agcy Marine Earth Sci & Technol, Dept Coupled Ocean Atmosphere Land Proc Res, Yokosuka, Kanagawa 2370061, Japan.
[Ridout, James A.] Naval Res Lab, Monterey, CA USA.
[Schubert, Siegfried D.] NASA GSFC, Global Modeling & Assimilat Off, Greenbelt, MD USA.
[Scinocca, John] Environm Canada, Canadian Ctr Climate Modelling & Anal, Victoria, BC, Canada.
[Seo, Kyong-Hwan] Pusan Natl Univ, Dept Atmospher Sci, Pusan 609735, South Korea.
[Shindo, Eiki] Meteorol Res Inst, Climate Res Dept, Tsukuba, Ibaraki 305, Japan.
[Song, Xiaoliang; Zhang, Guang J.] Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92093 USA.
[Stan, Cristiana] George Mason Univ, Dept Atmospher Ocean & Earth Sci, Fairfax, VA 22030 USA.
[Tseng, Wan-Ling] Acad Sinica, Univ Res Ctr Environm Changes, Taipei 115, Taiwan.
[Wang, Wanqiu] NOAA, Natl Ctr Environm Predict, Climate Predict Ctr, Camp Springs, MD USA.
[Wu, Tongwen] China Meteorol Adm, Beijing Climate Ctr, Beijing, Peoples R China.
[Wu, Xiaoqing] Iowa State Univ, Dept Geol & Atmospher Sci, Ames, IA USA.
[Wyser, Klaus] Swedish Meteorol & Hydrol Inst, Rossby Ctr, S-60176 Norrkoping, Sweden.
[Zhu, Hongyan] Bur Meteorol, Ctr Australian Weather & Climate Res, Melbourne, Vic, Australia.
RP Jiang, XN (reprint author), Univ Calif Los Angeles, Joint Inst Reg Earth Syst Sci & Engn, Los Angeles, CA 90089 USA.
EM xianan@ucla.edu
RI Stan, Cristiana/B-4376-2009; Klingaman, Nicholas/H-4610-2012; DeMott,
Charlotte/L-7414-2015; Ma, Hsi-Yen/K-1019-2013; Guan, Bin/F-6735-2010;
OI Stan, Cristiana/0000-0002-0076-0574; Klingaman,
Nicholas/0000-0002-2927-9303; DeMott, Charlotte/0000-0002-3975-1288;
Bellon, Gilles/0000-0003-3981-1225
FU National Science Foundation (NSF) Climate and Large-Scale Dynamics
Program [AGS-1228302]; NOAA MAPP program [NA12OAR4310075]; Office of
Naval Research [ONRBAA12-001, 0601153N]; NSF [AGS-1221013, AGS-1211848,
ATM-0935263]; Jet Propulsion Laboratory, California Institute of
Technology under NASA; National Centre for Atmospheric Science, a
National Environment Research Council collaborative center
[R8/H12/83/001]; Joint DECC/Defra Met Office Hadley Centre Climate
Programme [GA01101]; NASA [NNX13AM18G]; Korea Meteorological
Administration Research and Development Program [CATER 2013-3142];
National Science Foundation; European Union [244067]; U.S. DOE as part
of the CAPT; U.S. DOE by LLNL [DE-AC52-07NA27344]; National Research
Foundation of Korea - Ministry of Education, Science and Technology
[2011-0015486]
FX The multimodel output collected by this project and analyzed in this
study is available for free download from
https://earthsystemcog.org/projects/gassyotc-mip/. We acknowledge the
insightful comments from the Editor, C. Zhang, and J. Lin and other two
reviewers, which greatly helped improve this manuscript. We would like
to thank E. Maloney and J. Benedict for their help with the calculation
of gross moist stability. We are indebted to E. Maloney, A. Del Genio,
B. Wang, B. Mapes, M. Moncrieff, A. Majda, C. Zhang, T. Li, and WGNE MJO
Task Force members for stimulating discussions during the course of this
study. X. Jiang acknowledges support by National Science Foundation
(NSF) Climate and Large-Scale Dynamics Program under awards AGS-1228302,
and NOAA MAPP program under award NA12OAR4310075. D. Waliser
acknowledges the Office of Naval Research under Project ONRBAA12-001,
NSF AGS-1221013, and the Jet Propulsion Laboratory, California Institute
of Technology, under a contract with the NASA. N. Klingaman and S.
Woolnough were supported by the National Centre for Atmospheric Science,
a National Environment Research Council collaborative center, under
contract R8/H12/83/001. P. Xavier and J. Petch are supported by the
Joint DECC/Defra Met Office Hadley Centre Climate Programme (GA01101).
D. Kim was supported by the NASA grant NNX13AM18G and the Korea
Meteorological Administration Research and Development Program under
grant CATER 2013-3142, and he appreciates the NASA/GISS modeling group,
especially M. Kelley, M.-S. Yao, and A. Del Genio for their invaluable
and unlimited supports. J. Ridout gratefully acknowledges support from
the Office of Naval Research Program Element 0601153N, a grant of
computing time from the United States Department of Defense High
Performance Computing Modernization Program. The SMHI simulations were
performed on resources provided by the Swedish National Infrastructure
for Computing (SNIC) at the Parallel Computing Centre (PDC). The
National Center for Atmospheric Research is sponsored by the National
Science Foundation. Some of this research by T. Crueger has received
funding from the European Union, Seventh Framework Programme
(FP7/2007-2013) under grant agreement 244067. The effort of H.-Y. Ma was
funded by the RGCM and ASR programs of the U.S. DOE as part of the CAPT.
This work was performed under the auspices of the U.S. DOE by LLNL under
contract DE-AC52-07NA27344. C. Stan was supported by NSF grant
AGS-1211848. K.-H. Seo is supported by the National Research Foundation
of Korea grant (2011-0015486) funded by the Ministry of Education,
Science and Technology. X. Wu is supported by the NSF under grant
ATM-0935263. T. Miyakawa acknowledges M. Watanabe and N. Hirota for
their support in providing MIROC data set, and the Earth Simulator
(JIMSTEC) for the computation. W-L Tseng was supported by the German
BMBF NORDATLANTIK project, and the Norddeutscher Verbund fur Hoch- und
Hochstleistungsrechnen for the computation.
NR 204
TC 34
Z9 34
U1 7
U2 40
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-897X
EI 2169-8996
J9 J GEOPHYS RES-ATMOS
JI J. Geophys. Res.-Atmos.
PD MAY 27
PY 2015
VL 120
IS 10
BP 4718
EP 4748
DI 10.1002/2014JD022375
PG 31
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA CL1IT
UT WOS:000356696800017
ER
PT J
AU Kruse, FA
Baugh, WM
Perry, SL
AF Kruse, Fred A.
Baugh, William M.
Perry, Sandra L.
TI Validation of DigitalGlobe WorldView-3 Earth imaging satellite shortwave
infrared bands for mineral mapping
SO JOURNAL OF APPLIED REMOTE SENSING
LA English
DT Article
DE WorldView-3; shortwave infrared; multispectral mineral mapping;
hyperspectral; Cuprite; Nevada alteration
ID SPACEBORNE THERMAL EMISSION; REFLECTION RADIOMETER ASTER; ALTERED ROCKS;
SPECTROMETER DATA; NEVADA; SPECTROSCOPY; CALIFORNIA; CUPRITE; IMAGES;
DISCRIMINATION
AB WorldView-3 (WV-3) is a newly launched (August 2014) high-spatial resolution commercial multispectral satellite sensor with eight visible to near-infrared bands (0.42 to 1.04 mu m) and eight shortwave infrared (SWIR) bands (1.2 to 2.33 mu m). Previous analyses using hyperspectral imagery (HSI) data of Cuprite, Nevada, to simulate WV-3's eight SWIR bands demonstrated identification and mapping of a wide variety of minerals, including kaolinite, alunite, buddingtonite, muscovite, calcite, and hydrothermal silica. These results, using partial unmixing, showed mineral occurrences similar to those mapped using full resolution HSI data and established WV-3's potential as a valuable new mineral mapping tool. Confusion matrix analyses using the HSI data as ground truth did indicate, however, some difficulties with mapping spectrally similar minerals using the multispectral data. Follow-up mineral mapping, using on-orbit WV-3 data acquired September 19, 2014, for Cuprite, Nevada, and the same algorithms and methods used for WV-3 simulation, indicates that the WV-3 sensor is performing as expected. WV-3 SWIR data analyses closely match expectations for mineral mapping as predicted by the simulation. While not as capable as an HSI sensor, WV-3's carefully selected eight SWIR bands provide new remote mineral mapping capabilities not available from any other spaceborne multispectral system. (C) The Authors. Published by SPIE under a Creative Commons Attribution 3.0 Unported License.
C1 [Kruse, Fred A.] Naval Postgrad Sch, Dept Phys, Monterey, CA 93943 USA.
[Kruse, Fred A.] Naval Postgrad Sch, Ctr Remote Sensing, Monterey, CA 93943 USA.
[Baugh, William M.] DigitalGlobe Inc, Longmont, CO 80503 USA.
[Perry, Sandra L.] Perry Remote Sensing LLC, Denver, CO 80231 USA.
RP Kruse, FA (reprint author), Naval Postgrad Sch, Dept Phys, 833 Dyer Rd, Monterey, CA 93943 USA.
EM fakruse@nps.edu
NR 55
TC 2
Z9 2
U1 6
U2 21
PU SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98225 USA
SN 1931-3195
J9 J APPL REMOTE SENS
JI J. Appl. Remote Sens.
PD MAY 27
PY 2015
VL 9
AR 096044
DI 10.1117/1.JRS.9.096044
PG 17
WC Environmental Sciences; Remote Sensing; Imaging Science & Photographic
Technology
SC Environmental Sciences & Ecology; Remote Sensing; Imaging Science &
Photographic Technology
GA CK5TQ
UT WOS:000356289000001
ER
PT J
AU Mukhopadhyay, S
Thompson, T
Sakamoto, J
Huq, A
Wolfenstine, J
Allen, JL
Bernstein, N
Stewart, DA
Johannes, MD
AF Mukhopadhyay, Saikat
Thompson, Travis
Sakamoto, Jeff
Huq, Ashfia
Wolfenstine, Jeff
Allen, Jan L.
Bernstein, Noam
Stewart, Derek A.
Johannes, M. D.
TI Structure and Stoichiometry in Supervalent Doped Li7La3Zr2O12
SO CHEMISTRY OF MATERIALS
LA English
DT Article
ID GARNET-TYPE LI7LA3ZR2O12; LITHIUM ION CONDUCTORS; AUGMENTED-WAVE METHOD;
CUBIC LI7LA3ZR2O12; CRYSTAL-STRUCTURE; CONDUCTIVITY; OXIDES; TA;
LI-7-XLA3ZR2-XTAXO12; ELECTROLYTES
AB The oxide garnet material L(i)7La(3)Zr(2)O(12) shows remarkably high ionic conductivity when doped with supervalent ions that are charge compensated by Li vacancies and is currently one of the best candidates for development of a technologically relevant solid electrolyte. Determination of optimal dopant concentration, however, has remained a persistent problem due to the extreme difficulty of establishing the actual (as compared to nominal) stoichiometry of intentionally doped materials and by the fact that it is still not entirely clear what level of lattice expansion/contraction best promotes. ionic diffusion. By combining careful synthesis, neutron diffraction, high-resolution X-ray diffraction (XRD), Raman measurements, and density functional theory calculations, we show that structure and stoichiometry are intimately related such that the former can in many cases be used as a gauge of the latter. We show that different Li-vacancy creating supervalent ions (Al3+ vs Ta5+) affect the structure very differently, both in terms of the lattice constant, which is easily measurable, and hi terms of the local structure, which can be difficult or impossible to access experimentally but may have important ramifications for conduction. We carefully correlate the lattice constant to dopant type/concentration via Vegard's law and then further correlate these quantities to relevant local structural parameters. Our work opens the possibility of developing a codopant scheme that optimizes the Li vacancy concentration and the lattice size simultaneously.
C1 [Mukhopadhyay, Saikat; Stewart, Derek A.] Cornell Univ, Cornell Nanoscale Facil, Ithaca, NY 14853 USA.
[Thompson, Travis; Sakamoto, Jeff] Michigan State Univ, Dept Chem Engn & Mat Sci, E Lansing, MI 48824 USA.
[Huq, Ashfia] Oak Ridge Natl Lab, Oak Ridge, TN 37830 USA.
[Wolfenstine, Jeff; Allen, Jan L.] Army Res Lab, Adelphi, MD 20783 USA.
[Bernstein, Noam; Johannes, M. D.] Naval Res Lab, Ctr Computat Mat Sci, Washington, DC 20375 USA.
RP Johannes, MD (reprint author), Naval Res Lab, Ctr Computat Mat Sci, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM michelle.johannes@nrl.navy.mil
RI Stewart, Derek/B-6115-2008; Huq, Ashfia/J-8772-2013; Mukhopadhyay,
Saikat/B-4402-2011;
OI Huq, Ashfia/0000-0002-8445-9649; Stewart, Derek/0000-0001-7355-2605
FU NSF CBET [1066406]; Office of Naval Research through the Naval Research
Laboratory's Basic Research Program; Scientific User Facilities
Division, Office of Basic Energy Sciences, U.S. Department of Energy;
Revolutionary Materials for Solid State Energy Conversion, an Energy
Frontier Research Center - US Department of Energy, Office of Science,
Office of Basic Energy Science [DE-SC001054]; U.S. Army Research
Laboratory (ARL)
FX We thankfully acknowledge computing resources from the NNIN/C at Cornell
and Research Services at Boston College. The work at Cornell University
was supported by NSF CBET Grant via contract numbers 1066406. Funding
for M.D.J. and N.B. was provided by the Office of Naval Research through
the Naval Research Laboratory's Basic Research Program. A portion of
this research at ORNL's Spallation Neutron Source was sponsored by the
Scientific User Facilities Division, Office of Basic Energy Sciences,
U.S. Department of Energy. T.T. and J.S. would like to acknowledge
support from the Revolutionary Materials for Solid State Energy
Conversion, an Energy Frontier Research Center funded by the US
Department of Energy, Office of Science, Office of Basic Energy Science
under Award Number DE-SC001054. J.W. and J.L.A. would like to
acknowledge support of the U.S. Army Research Laboratory (ARL).
NR 48
TC 10
Z9 10
U1 18
U2 101
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0897-4756
EI 1520-5002
J9 CHEM MATER
JI Chem. Mat.
PD MAY 26
PY 2015
VL 27
IS 10
BP 3658
EP 3665
DI 10.1021/acs.chemmater.5b00362
PG 8
WC Chemistry, Physical; Materials Science, Multidisciplinary
SC Chemistry; Materials Science
GA CJ3KP
UT WOS:000355382700014
ER
PT J
AU Mehl, MJ
Finkenstadt, D
Dane, C
Hart, GLW
Curtarolo, S
AF Mehl, Michael J.
Finkenstadt, Daniel
Dane, Christian
Hart, Gus L. W.
Curtarolo, Stefano
TI Finding the stable structures of N1-xWx with an ab initio
high-throughput approach
SO PHYSICAL REVIEW B
LA English
DT Article
ID AUGMENTED-WAVE METHOD; NITRIDE THIN-FILMS; CRYSTAL-STRUCTURE;
ELECTRONIC-PROPERTIES; TUNGSTEN NITRIDE; HIGH-TEMPERATURE;
1ST-PRINCIPLES CALCULATIONS; MOLECULAR-DYNAMICS; 1ST PRINCIPLES;
BINARY-ALLOYS
AB Using density functional theory calculations, many researchers have predicted that various tungsten nitride compounds N1-xWx (x < 1/2) will be "ultraincompressible" or "superhard," i.e., as hard as or harder than diamond. Necessary conditions for such compounds are that they have large bulk and shear moduli, greater than approximately 200 GPa, and are elastically and vibrationally stable. Compounds with such desirable properties also must be energetically stable against decomposition into other compounds. This test for stability can only be found after the determination of the convex hull for N1-xWx, which connects the lowest enthalpy structures as a function of composition. Unfortunately, the experimental phase diagram of the N-W structure is uncertain, as it is difficult to break the N-2 bond to form compounds with tungsten. Experiment also indicates that there are a large number of partially filled sites in most N-W structures. This introduces computational difficulties since we cannot easily model randomly placed vacancies. In addition, van der Waals forces play a significant role in determining the structure of solid N-2 and the nitrogen-rich compounds. This makes it difficult to determine the relative energies of these compounds, as there is no universally accepted density functional incorporating van der Waals interactions. The exact shape and even composition of the convex hull is dependent upon the choice of density functional, even if we only chose between the local density approximation and a generalized gradient functional. Despite these difficulties, computations can determine much about the ground-state form of the convex hull. Here, we use high-throughput calculations to map out the hull and other low-energy structures for the N-W system. The lowest-energy structures all have vacancies, on the tungsten sites in hexagonal-based compounds, and on both the nitrogen and tungsten sites in cubic compounds. We find that most of the N-W structures proposed in the literature, both theoretical and experimental, are above the convex hull, in some cases by over 0.2 eV/atom. One of the ground-state phases, N-W in the NbO structure, has relatively large bulk (>300 GPa) and (>200 GPa) shear moduli, and so is a candidate superhard material. This will require further investigation.
C1 [Mehl, Michael J.] Naval Res Lab, Ctr Computat Mat Sci, Washington, DC 20375 USA.
[Finkenstadt, Daniel; Dane, Christian] US Naval Acad, Dept Phys, Annapolis, MD 21402 USA.
[Hart, Gus L. W.] Brigham Young Univ, Dept Phys & Astron, Provo, UT 84602 USA.
[Curtarolo, Stefano] Duke Univ, Mat Sci Elect Engn Phys & Chem, Durham, NC 27708 USA.
RP Mehl, MJ (reprint author), Naval Res Lab, Ctr Computat Mat Sci, Washington, DC 20375 USA.
EM michael.mehl@nrl.navy.mil; stefano@duke.edu
RI Mehl, Michael/H-8814-2016
FU Office of Naval Research; Naval Research Laboratory-U. S. Naval Academy
Cooperative Program for Scientific Interchange; "Simulation of Materials
Under Pressure" Internship at the Naval Research Laboratory; DOD-ONR
[N00014-13-1-0635, N00014-11-1-0136, N00014-09-1-0921]; National Science
Foundation [DMR-0908753]
FX Computational work was done at the U. S. Naval Academy and at the ERDC
and AFRL High Performance Computer Centers of the U. S. Department of
Defense. We thank Fulton Supercomputing Laboratory and the Cray
Corporation for additional computational support. M.J.M. is supported by
the Office of Naval Research. D.F. was supported by the Naval Research
Laboratory-U. S. Naval Academy Cooperative Program for Scientific
Interchange. C.D. was supported by the "Simulation of Materials Under
Pressure" Internship at the Naval Research Laboratory. S.C. acknowledges
support from DOD-ONR (Grants No. N00014-13-1-0635, No. N00014-11-1-0136,
and No. N00014-09-1-0921). G.L.W.H. is grateful for support from the
National Science Foundation, Grant No. DMR-0908753. The authors thank Y.
Ciftci for providing us with the starting coordinates for the
ReP4 structure used in Ref. [30], J. Wollmershauser for
referring us to Ref. [21], and also thank Dr. O. Levy and Dr. A.
Stelling for useful comments.
NR 100
TC 5
Z9 5
U1 8
U2 31
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 MAY 26
PY 2015
VL 91
IS 18
AR 184110
DI 10.1103/PhysRevB.91.184110
PG 19
WC Physics, Condensed Matter
SC Physics
GA CI9KW
UT WOS:000355089900003
ER
PT J
AU Ranasinghe, S
Ansumana, R
Lamin, JM
Bockarie, AS
Bangura, U
Buanie, JAG
Stenger, DA
Jacobsen, KH
AF Ranasinghe, Shamika
Ansumana, Rashid
Lamin, Joseph M.
Bockarie, Alfred S.
Bangura, Umaru
Buanie, Jacob A. G.
Stenger, David A.
Jacobsen, Kathryn H.
TI Herbs and herbal combinations used to treat suspected malaria in Bo,
Sierra Leone
SO JOURNAL OF ETHNOPHARMACOLOGY
LA English
DT Article
DE Cross-sectional study; Herbal medicine; African traditional medicine;
Malaria; Moringa oleifera; West Africa
ID VITRO ANTIPLASMODIAL ACTIVITY; MEDICINAL-PLANTS; ETHNOBOTANICAL SURVEY;
TRADITIONAL MEDICINE; BURKINA-FASO; DISTRICT; GHANA
AB Ethnopharmacological relevance: Most adults in West Africa treat acute febrile illnesses with local herbs, but the patterns of herbs used for malaria have not been recently described in Sierra Leone.
Materials and methods: We used a population-based cross-sectional approach to interview 810 randomly-sampled rural and urban adult residents of Bo, Sierra Leone, in December 2013 and January 2014 about their use of herbal remedies when they suspect they have malaria.
Results: In total, 55% of the participants reported taking one or more of seven herbs to treat symptoms of malaria. Among herb users, the most commonly used anti-malarial herbs were Moringa oleifera (moringa, 52%) and Sarcocephalus latifolius (yumbuyambay, 50%). The other herbs used included Senna siamea (shekutoure, 18%), Cassia sieberiana (gbangba, 18%), Uvaria afzelii (gone-botai, 14%), Morinda chrysorhiza (njasui, 14%), and Craterispermum laurinum (nyelleh, 7%). Combination herbal therapy was common, with 37% of herb users taking two or more herbs together when ill with suspected malaria.
Conclusions: Indigenous medical knowledge about herbal remedies and combinations of local herbs remains an integral part of malaria case management in Sierra Leone. (c) 2015 Elsevier Ireland Ltd. All rights reserved.
C1 [Ranasinghe, Shamika; Jacobsen, Kathryn H.] George Mason Univ, Fairfax, VA 22030 USA.
[Ansumana, Rashid; Lamin, Joseph M.; Bockarie, Alfred S.; Bangura, Umaru; Buanie, Jacob A. G.] Mercy Hosp, Res Lab, Kulanda Town, Bo, Sierra Leone.
[Ansumana, Rashid] Njala Univ, Bo, Sierra Leone.
[Stenger, David A.] US Naval Res Lab, Washington, DC 20375 USA.
RP Jacobsen, KH (reprint author), George Mason Univ, Dept Global & Community Hlth, 4400 Univ Dr 5B7, Fairfax, VA 22030 USA.
EM sranasi3@gmu.edu; rashidansumana@gmail.com; jm_lamin@yahoo.com;
asbock2@yahoo.com; umarbans@yahoo.co.uk; jagbuanie@gmail.com;
david.stenger@nrl.navy.mil; kjacobse@gmu.edu
RI Jacobsen, Kathryn/B-5857-2008;
OI Jacobsen, Kathryn/0000-0002-4198-6246; Ranasinghe,
Shamika/0000-0001-5884-6541
FU Joint Science and Technology Office of the U.S. Defense Threat Reduction
Agency
FX Funding for this project was provided by Joint Science and Technology
Office of the U.S. Defense Threat Reduction Agency.
NR 26
TC 2
Z9 2
U1 2
U2 19
PU ELSEVIER IRELAND LTD
PI CLARE
PA ELSEVIER HOUSE, BROOKVALE PLAZA, EAST PARK SHANNON, CO, CLARE, 00000,
IRELAND
SN 0378-8741
J9 J ETHNOPHARMACOL
JI J. Ethnopharmacol.
PD MAY 26
PY 2015
VL 166
BP 200
EP 204
DI 10.1016/j.jep.2015.03.028
PG 5
WC Plant Sciences; Chemistry, Medicinal; Integrative & Complementary
Medicine; Pharmacology & Pharmacy
SC Plant Sciences; Pharmacology & Pharmacy; Integrative & Complementary
Medicine
GA CH4NF
UT WOS:000354009500023
PM 25794802
ER
PT J
AU Pereira, VH
Gama, MCT
Sousa, FAB
Lewis, TG
Gobatto, CA
Manchado-Gobatto, FB
AF Pereira, Vanessa Helena
Traina Gama, Maria Carolina
Barros Sousa, Filipe Antonio
Lewis, Theodore Gyle
Gobatto, Claudio Alexandre
Manchado-Gobatto, Fulvia Barros
TI Complex network models reveal correlations among network metrics,
exercise intensity and role of body changes in the fatigue process
SO SCIENTIFIC REPORTS
LA English
DT Article
ID CRITICAL POWER CONCEPT; TREADMILL TEST; NEUROMUSCULAR FATIGUE; MUSCLE
FATIGUE; WORK CAPACITY; PERFORMANCE; FORCE; RELIABILITY; KINEMATICS;
VALIDITY
AB The aims of the present study were analyze the fatigue process at distinct intensity efforts and to investigate its occurrence as interactions at distinct body changes during exercise, using complex network models. For this, participants were submitted to four different running intensities until exhaustion, accomplished in a non-motorized treadmill using a tethered system. The intensities were selected according to critical power model. Mechanical (force, peak power, mean power, velocity and work) and physiological related parameters (heart rate, blood lactate, time until peak blood lactate concentration (lactate time), lean mass, anaerobic and aerobic capacities) and IPAQ score were obtained during exercises and it was used to construction of four complex network models. Such models have both, theoretical and mathematical value, and enables us to perceive new insights that go beyond conventional analysis. From these, we ranked the influences of each node at the fatigue process. Our results shows that nodes, links and network metrics are sensibility according to increase of efforts intensities, been the velocity a key factor to exercise maintenance at models/intensities 1 and 2 (higher time efforts) and force and power at models 3 and 4, highlighting mechanical variables in the exhaustion occurrence and even training prescription applications.
C1 [Pereira, Vanessa Helena; Traina Gama, Maria Carolina; Barros Sousa, Filipe Antonio; Gobatto, Claudio Alexandre; Manchado-Gobatto, Fulvia Barros] Univ Estadual Campinas, Sch Appl Sci, Lab Appl Sport Physiol, BR-13484350 Limeira, SP, Brazil.
[Lewis, Theodore Gyle] Ctr Homeland Def & Secur, Naval Postgrad Sch, Monterey, CA 93943 USA.
RP Pereira, VH (reprint author), Univ Estadual Campinas, Sch Appl Sci, Lab Appl Sport Physiol, BR-13484350 Limeira, SP, Brazil.
EM nessahelena@gmail.com
RI GOBATTO, CLAUDIO/O-7257-2015; Manchado-Gobatto, Fulvia/B-9168-2012;
Gobatto, Claudio/E-7388-2014;
OI Manchado-Gobatto, Fulvia/0000-0002-1178-570X; Pereira, Vanessa
Helena/0000-0003-1363-5649
FU Fundacao de Amparo a Pesquisa do Estado de Sao Paulo - FAPESP
[2009/08535-5, 2012/06355-2]; Coordenacao de Aperfeicoamento de Pessoal
de Nivel Superior-CAPES [01P04517/2013, 01P03422-2014]
FX We would like to thank the Fundacao de Amparo a Pesquisa do Estado de
Sao Paulo - FAPESP (proc. no. 2009/08535-5 and 2012/06355-2) and
Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior-CAPES (proc.
no. 01P04517/2013 and 01P03422-2014) for the financial support.
NR 48
TC 2
Z9 2
U1 0
U2 11
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 MAY 21
PY 2015
VL 5
AR 10489
DI 10.1038/srep10489
PG 11
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA CJ5DN
UT WOS:000355507700001
PM 25994386
ER
PT J
AU Jensen, KL
Shiffler, DA
Rittersdorf, IM
Lebowitz, JL
Harris, JR
Lau, YY
Petillo, JJ
Tang, W
Luginsland, JW
AF Jensen, Kevin L.
Shiffler, Donald A.
Rittersdorf, Ian M.
Lebowitz, Joel L.
Harris, John R.
Lau, Y. Y.
Petillo, John J.
Tang, Wilkin
Luginsland, John W.
TI Discrete space charge affected field emission: Flat and hemisphere
emitters
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID HIGH-CURRENT DENSITY; CHILD-LANGMUIR LAW; ELECTRON-EMISSION; CATHODES;
SIMULATION; AMPLIFIERS; DESIGN; ARRAYS; BEAMS; CONES
AB Models of space-charge affected thermal-field emission from protrusions, able to incorporate the effects of both surface roughness and elongated field emitter structures in beam optics codes, are desirable but difficult. The models proposed here treat the meso-scale diode region separate from the micro-scale regions characteristic of the emission sites. The consequences of discrete emission events are given for both one-dimensional (sheets of charge) and three dimensional (rings of charge) models: in the former, results converge to steady state conditions found by theory (e.g., Rokhlenko et al. [J. Appl. Phys. 107, 014904 (2010)]) but show oscillatory structure as they do. Surface roughness or geometric features are handled using a ring of charge model, from which the image charges are found and used to modify the apex field and emitted current. The roughness model is shown to have additional constraints related to the discrete nature of electron charge. The ability of a unit cell model to treat field emitter structures and incorporate surface roughness effects inside a beam optics code is assessed. (C) 2015 AIP Publishing LLC.
C1 [Jensen, Kevin L.; Rittersdorf, Ian M.] Naval Res Lab, Washington, DC 20375 USA.
[Shiffler, Donald A.; Tang, Wilkin] Air Force Res Lab, Kirtland AFB, NM 87117 USA.
[Lebowitz, Joel L.] Rutgers State Univ, Dept Math, Piscataway, NJ 08854 USA.
[Lebowitz, Joel L.] Rutgers State Univ, Dept Phys, Piscataway, NJ 08854 USA.
[Harris, John R.] US Navy Reserve, New Orleans, LA 70143 USA.
[Lau, Y. Y.] Univ Michigan, Dept Nucl Engn & Radiol Sci, Ann Arbor, MI 48109 USA.
[Petillo, John J.] Leidos, Billerica, MA 01821 USA.
[Luginsland, John W.] AFOSR, Phys & Elect Directorate, Arlington, VA 22203 USA.
RP Jensen, KL (reprint author), Naval Res Lab, Code 6854, Washington, DC 20375 USA.
EM kevin.jensen@nrl.navy.mil
RI Jensen, Kevin/I-1269-2015
OI Jensen, Kevin/0000-0001-8644-1680
FU AFOSR; National Research Council Research Associateship Award at the
Naval Research Laboratory
FX We gratefully acknowledge financial support from J. Luginsland and J.
Marshall (AFOSR). This research was performed while IMR held a National
Research Council Research Associateship Award at the Naval Research
Laboratory.
NR 53
TC 9
Z9 9
U1 2
U2 16
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0021-8979
EI 1089-7550
J9 J APPL PHYS
JI J. Appl. Phys.
PD MAY 21
PY 2015
VL 117
IS 19
AR 194902
DI 10.1063/1.4921186
PG 17
WC Physics, Applied
SC Physics
GA CI8FN
UT WOS:000355005600027
ER
PT J
AU Gou, HY
Yonke, BL
Epshteyn, A
Kim, DY
Smith, JS
Strobel, TA
AF Gou, Huiyang
Yonke, Brendan L.
Epshteyn, Albert
Kim, Duck Young
Smith, Jesse S.
Strobel, Timothy A.
TI Pressure-induced polymerization of P(CN)(3)
SO JOURNAL OF CHEMICAL PHYSICS
LA English
DT Article
ID GRAPHITIC CARBON NITRIDE; AMORPHOUS-CARBON; RAMAN-SPECTRA; THIN-FILMS;
PHOSPHORUS TRICYANIDE; MOLECULAR PRECURSORS; ELECTRONIC-STRUCTURE;
POWDER DIFFRACTION; ALKALI CYANIDES; VISIBLE-LIGHT
AB Motivated to explore the formation of novel extended carbon-nitrogen solids via well-defined molecular precursor pathways, we studied the chemical reactivity of highly pure phosphorous tricyanide, P(CN)(3), under conditions of high pressure at room temperature. Raman and infrared (IR) spectroscopic measurements reveal a series of phase transformations below 10 GPa, and several low-frequency vibrational modes are reported for the first time. Synchrotron powder X-ray diffraction measurements taken during compression show that molecular P(CN)(3) is highly compressible, with a bulk modulus of 10.0 +/- 0.3 GPa, and polymerizes into an amorphous solid above similar to 10.0 GPa. Raman and IR spectra, together with first-principles molecular-dynamics simulations, show that the amorphization transition is associated with polymerization of the cyanide groups into CN bonds with predominantly sp(2) character, similar to known carbon nitrides, resulting in a novel phosphorous carbon nitride (PCN) polymeric phase, which is recoverable to ambient pressure. (C) 2015 AIP Publishing LLC.
C1 [Gou, Huiyang; Kim, Duck Young; Strobel, Timothy A.] Carnegie Inst Sci, Geophys Lab, Washington, DC 20015 USA.
[Yonke, Brendan L.; Epshteyn, Albert] Naval Res Lab, Washington, DC 20375 USA.
[Smith, Jesse S.] Carnegie Inst Sci, Geophys Lab, High Pressure Collaborat Access Team, Argonne, IL 60439 USA.
RP Gou, HY (reprint author), Carnegie Inst Sci, Geophys Lab, 5251 Broad Branch Rd NW, Washington, DC 20015 USA.
EM hgou@ciw.edu; tstrobel@ciw.edu
FU DARPA under ARO Contract [W31P4Q-13-I-0005]; DOE-NNSA [DE-NA0001974];
DOE-BES [DE-FG02-99ER45775, DE-AC02-06CH11357]; NSF; DOE Office of
Science User Facility [DE-AC02-06CH11357]
FX This work was supported by DARPA under ARO Contract No.
W31P4Q-13-I-0005. Portions of this work were performed at HPCAT (Sector
16), Advanced Photon Source (APS), Argonne National Laboratory. HPCAT
operations are supported by DOE-NNSA under Award No. DE-NA0001974 and
DOE-BES under Award No. DE-FG02-99ER45775, with partial instrumentation
funding by NSF. APS is supported by DOE-BES, under Contract No.
DE-AC02-06CH11357. D.Y.K. acknowledges the Texas Advanced Computing
Center (TACC) at the University of Texas at Austin and Argonne
Leadership Computing Facility (ALCF) which is a DOE Office of Science
User Facility supported under Contract No. DE-AC02-06CH11357 for
providing high performance computing resources.
NR 81
TC 2
Z9 2
U1 6
U2 40
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0021-9606
EI 1089-7690
J9 J CHEM PHYS
JI J. Chem. Phys.
PD MAY 21
PY 2015
VL 142
IS 19
AR 194503
DI 10.1063/1.4919640
PG 9
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA CI8FS
UT WOS:000355006200028
PM 26001465
ER
PT J
AU Hoffman, JE
Fatemi, FK
Beadie, G
Rolston, SL
Orozco, LA
AF Hoffman, Jonathan E.
Fatemi, Fredrik K.
Beadie, Guy
Rolston, Steven L.
Orozco, Luis A.
TI Rayleigh scattering in an optical nanofiber as a probe of higher-order
mode propagation
SO OPTICA
LA English
DT Article
ID CYLINDRICAL VECTOR BEAMS; FIBERS
AB Optical nanofibers (ONFs) provide a rich platform for exploring atomic and optical phenomena even when they support only a single spatial mode. Nanofibers supporting higher-order modes (HOMs) provide additional degrees of freedom to enable complex evanescent field profiles for interaction with the surrounding medium, but local control of these profiles requires nondestructive evaluation of the propagating fields. Here, we use Rayleigh scattering for rapid measurement of the propagation of light in few-mode ONFs. Imaging the Rayleigh scattered light provides direct visualization of the spatial evolution of propagating fields throughout the entire fiber, including the transition from core-cladding guidance to cladding-air guidance. We resolve the interference between HOMs to determine local beat lengths and modal content along the fiber, and show that the modal superposition in the waist can be systematically controlled by adjusting the input superposition. With this diagnostic we can measure variations in the radius of the fiber waist to below 3 nm in situ using purely optical means. This nondestructive technique also provides useful insight into light propagation in ONFs. (C) 2015 Optical Society of America
C1 [Hoffman, Jonathan E.; Rolston, Steven L.; Orozco, Luis A.] Univ Maryland, Dept Phys, Joint Quantum Inst, College Pk, MD 20742 USA.
[Hoffman, Jonathan E.; Rolston, Steven L.; Orozco, Luis A.] NIST, College Pk, MD 20742 USA.
[Fatemi, Fredrik K.; Beadie, Guy] US Navy, Res Lab, Div Opt Sci, Washington, DC 20375 USA.
RP Fatemi, FK (reprint author), US Navy, Res Lab, Div Opt Sci, Washington, DC 20375 USA.
EM fredrik.fatemi@nrl.navy.mil
RI rolston, steven/L-5175-2013
OI rolston, steven/0000-0003-1671-4190
FU Army Research Office (ARO) (Atomtronics MURI) [528418]; Defense Advanced
Research Projects Agency (DARPA) [HR0011411122]; National Science
Foundation (NSF) [PHY-1430094]; Office of Naval Research (ONR)
FX Army Research Office (ARO) (Atomtronics MURI (528418)); Defense Advanced
Research Projects Agency (DARPA) (HR0011411122); National Science
Foundation (NSF) (PHY-1430094); Office of Naval Research (ONR).
NR 34
TC 4
Z9 4
U1 3
U2 16
PU OPTICAL SOC AMER
PI WASHINGTON
PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA
SN 2334-2536
J9 OPTICA
JI Optica
PD MAY 20
PY 2015
VL 2
IS 5
BP 416
EP 423
DI 10.1364/OPTICA.2.000416
PG 8
WC Optics
SC Optics
GA CI6KH
UT WOS:000354867400005
ER
PT J
AU Papaconstantopoulos, DA
Klein, BM
Mehl, MJ
Pickett, WE
AF Papaconstantopoulos, D. A.
Klein, B. M.
Mehl, M. J.
Pickett, W. E.
TI Cubic H3S around 200 GPa: An atomic hydrogen superconductor stabilized
by sulfur
SO PHYSICAL REVIEW B
LA English
DT Article
ID ELECTRON-PHONON INTERACTION; TRANSITION-TEMPERATURE; METALLIC HYDROGEN;
PRESSURE; PDHX; PDDX
AB The multiple scattering-based theory of Gaspari and Gyorffy for the electron-ion matrix element in close packed metals is applied to Im (3) over barm H3S, which has been predicted by Duan et al. and Bernstein et al. to be the stable phase at this stoichiometry around 190 GPa, thus is the leading candidate to be the phase observed to superconduct at 190 K by Drozdov, Eremets, and Troyan. The nearly perfect separation of vibrational modes into those of S and of H character provides a simplification that enables identification of contributions of the two atoms separately. The picture that arises is basically that of superconducting atomic H stabilized by strong covalent mixing with S p and d character. The reported isotope shift is much larger than the theoretical one, suggesting there is large anharmonicity in the H vibrations. Given the relative unimportance of sulfur, hydrides of lighter atoms at similarly high pressures may also lead to high temperature superconductivity.
C1 [Papaconstantopoulos, D. A.] George Mason Univ, Computat Mat Sci Ctr, Fairfax, VA 22030 USA.
[Klein, B. M.; Pickett, W. E.] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA.
[Mehl, M. J.] US Navy, Res Lab, Ctr Computat Mat Sci, Washington, DC 20375 USA.
RP Papaconstantopoulos, DA (reprint author), George Mason Univ, Computat Mat Sci Ctr, Fairfax, VA 22030 USA.
EM pickett@physics.ucdavis.edu
RI Mehl, Michael/H-8814-2016
FU Office of Naval Research through the Naval Research Laboratory; NSF
[DMR-1207622-0]; US Naval Research Laboratory [N00173-11-1-G002]
FX The authors acknowledge many insightful conversations on the theory and
application of GG theory with the late B. L. Gyorffy, to whom we
dedicate this paper. We acknowledge discussions with A. S. Botana, F.
Gygi, and I. I. Mazin. M.J.M. was supported by the Office of Naval
Research through the Naval Research Laboratory's basic research program.
W.E.P. was supported by NSF Award No. DMR-1207622-0. D.A.P. was
supported by Grant No. N00173-11-1-G002 from the US Naval Research
Laboratory.
NR 29
TC 42
Z9 42
U1 6
U2 58
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 MAY 19
PY 2015
VL 91
IS 18
AR 184511
DI 10.1103/PhysRevB.91.184511
PG 5
WC Physics, Condensed Matter
SC Physics
GA CI7WZ
UT WOS:000354977300004
ER
PT J
AU Basu, R
Kinnamon, D
Garvey, A
AF Basu, Rajratan
Kinnamon, Daniel
Garvey, Alfred
TI Nano-electromechanical rotation of graphene and giant enhancement in
dielectric anisotropy in a liquid crystal
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID CARBON NANOTUBES; THERMAL-PROPERTIES
AB A nematic liquid crystal (LC) is doped with dilute concentrations of pristine monolayer graphene (GP) flakes, and the LC + GP hybrids are found to exhibit a dramatic increase in the dielectric anisotropy. Electric field-dependent conductance studies reveal that the graphene flakes follow the nematic director that mechanically rotates on increasing an applied electric field. Further studies show that the p-p electron stacking, between the graphene's honeycomb structure and the LC's benzene rings, stabilizes pseudo-nematic domains that collectively amplify the dielectric anisotropy by improving the orientational order parameter in the nematic phase. These anisotropic domains interact with the external electric field, resulting in a nonzero dielectric anisotropy in the isotropic phase as well. The enhancement in dielectric anisotropy, due to the LC-graphene coupling, is found to have subsequent positive impacts on the LC's orientational threshold field and elasticity that allows the nematic director to respond quicker on switching the electric field off. (C) 2015 AIP Publishing LLC.
C1 [Basu, Rajratan; Kinnamon, Daniel; Garvey, Alfred] US Naval Acad, Soft Matter & Nanomat Lab, Dept Phys, Annapolis, MD 21402 USA.
RP Basu, R (reprint author), US Naval Acad, Soft Matter & Nanomat Lab, Dept Phys, Annapolis, MD 21402 USA.
EM basu@usna.edu
FU Office of Naval Research, Division 312: Electronics Sensors and Network
Research [N0001414WX20791]; U.S. Naval Academy
FX This work was supported by the Office of Naval Research, Division 312:
Electronics Sensors and Network Research, Award No. N0001414WX20791 and
the investment grant at the U.S. Naval Academy.
NR 33
TC 9
Z9 9
U1 4
U2 19
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 MAY 18
PY 2015
VL 106
IS 20
AR 201909
DI 10.1063/1.4921752
PG 5
WC Physics, Applied
SC Physics
GA CI8GR
UT WOS:000355009400016
ER
PT J
AU Currie, M
Hanbicki, AT
Kioseoglou, G
Jonker, BT
AF Currie, M.
Hanbicki, A. T.
Kioseoglou, G.
Jonker, B. T.
TI Optical control of charged exciton states in tungsten disulfide
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID TRANSITION-METAL DICHALCOGENIDES; MONO LAYER; 2-DIMENSIONAL
SEMICONDUCTORS; LATTICE-DYNAMICS; MONOLAYER MOS2; WS2;
PHOTOLUMINESCENCE; WSE2; BAND
AB A method is presented for optically preparing WS2 monolayers to luminescence from only the charged exciton (trion) state-completely suppressing the neutral exciton. When isolating the trion state, we observed changes in the Raman A(1g) intensity and an enhanced feature on the low energy side of the E-2g(1) peak. Photoluminescence and optical reflectivity measurements confirm the existence of the prepared trion state. This technique also prepares intermediate regimes with controlled luminescence amplitudes of the neutral and charged exciton. This effect is reversible by exposing the sample to air, indicating the change is mitigated by surface interactions with the ambient environment. This method provides a tool to modify optical emission energy and to isolate physical processes in this and other two-dimensional materials. (C) 2015 AIP Publishing LLC.
C1 [Currie, M.; Hanbicki, A. T.; Jonker, B. T.] Naval Res Lab, Washington, DC 20375 USA.
[Kioseoglou, G.] Univ Crete, Iraklion 71003, Crete, Greece.
[Kioseoglou, G.] Fdn Res & Technol Hellas FORTH, IESL, Iraklion 71110, Crete, Greece.
RP Currie, M (reprint author), Naval Res Lab, Washington, DC 20375 USA.
FU NRL; NRL Nanoscience Institute; Air Force Office of Scientific Research
[F4GGA24233G001]
FX We would like to thank Adam Friedman and Kathy McCreary for sample
fabrication as well as Jim Culbertson for assistance with Raman
measurements. G.K. gratefully acknowledges the hospitality and support
of the Naval Research Laboratory where the experiments were performed.
This work was supported by core programs at NRL and the NRL Nanoscience
Institute. This work was supported in part by the Air Force Office of
Scientific Research under contract number F4GGA24233G001.
NR 32
TC 15
Z9 15
U1 3
U2 64
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 MAY 18
PY 2015
VL 106
IS 20
AR 201907
DI 10.1063/1.4921472
PG 5
WC Physics, Applied
SC Physics
GA CI8GR
UT WOS:000355009400014
ER
PT J
AU Harris, JR
Jensen, KL
Shiffler, DA
Petillo, JJ
AF Harris, J. R.
Jensen, K. L.
Shiffler, D. A.
Petillo, J. J.
TI Shielding in ungated field emitter arrays
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID EMISSION CATHODES
AB Cathodes consisting of arrays of high aspect ratio field emitters are of great interest as sources of electron beams for vacuum electronic devices. The desire for high currents and current densities drives the cathode designer towards a denser array, but for ungated emitters, denser arrays also lead to increased shielding, in which the field enhancement factor beta of each emitter is reduced due to the presence of the other emitters in the array. To facilitate the study of these arrays, we have developed a method for modeling high aspect ratio emitters using tapered dipole line charges. This method can be used to investigate proximity effects from similar emitters an arbitrary distance away and is much less computationally demanding than competing simulation approaches. Here, we introduce this method and use it to study shielding as a function of array geometry. Emitters with aspect ratios of 10(2)-10(4) are modeled, and the shielding-induced reduction in beta is considered as a function of tip-to-tip spacing for emitter pairs and for large arrays with triangular and square unit cells. Shielding is found to be negligible when the emitter spacing is greater than the emitter height for the two-emitter array, or about 2.5 times the emitter height in the large arrays, in agreement with previously published results. Because the onset of shielding occurs at virtually the same emitter spacing in the square and triangular arrays, the triangular array is preferred for its higher emitter density at a given emitter spacing. The primary contribution to shielding in large arrays is found to come from emitters within a distance of three times the unit cell spacing for both square and triangular arrays. (C) 2015 AIP Publishing LLC.
C1 [Harris, J. R.] US Navy Reserve, Navy Operat Support Ctr New Orleans, New Orleans, LA 70143 USA.
[Jensen, K. L.] Naval Res Lab, Washington, DC 20375 USA.
[Shiffler, D. A.] Air Force Res Lab, Directed Energy Directorate, Albuquerque, NM 87117 USA.
[Petillo, J. J.] Leidos, Billerica, MA 01821 USA.
RP Harris, JR (reprint author), US Navy Reserve, Navy Operat Support Ctr New Orleans, New Orleans, LA 70143 USA.
RI Jensen, Kevin/I-1269-2015
OI Jensen, Kevin/0000-0001-8644-1680
FU Air Force Office of Scientific Research
FX The authors would like to thank Y. Y. Lau and J. L. Lebowitz for
valuable discussions. K.L.J. gratefully acknowledges partial support
from the Air Force Office of Scientific Research. J.R.H. would like to
thank the Office of Naval Research Reserve Component Program for
supporting his participation in this work.
NR 20
TC 12
Z9 12
U1 0
U2 11
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 MAY 18
PY 2015
VL 106
IS 20
AR 201603
DI 10.1063/1.4921709
PG 4
WC Physics, Applied
SC Physics
GA CI8GR
UT WOS:000355009400006
ER
PT J
AU Liu, GG
Hou, WL
Qiao, W
Han, M
AF Liu, Guigen
Hou, Weilin
Qiao, Wei
Han, Ming
TI Fast-response fiber-optic anemometer with temperature self-compensation
SO OPTICS EXPRESS
LA English
DT Article
ID BRAGG GRATINGS; FLOWMETER; SENSORS; SILICON
AB We report a novel fiber-optic anemometer with self-temperature compensation capability based on a Fabry-Perot interferometer (FPI) formed by a thin silicon film attached to the end face of a single-mode fiber. Guided in the fiber are a visible laser beam from a 635 nm diode laser used to heat the FPI and a white-light in the infrared wavelength range as the signal light to interrogate the optical length of the FPI. Cooling effects on the heated sensor head by wind is converted to a wavelength blueshift of the reflection spectral fringes of the FPI. Self-temperature-compensated measurement of wind speed is achieved by recording the difference in fringe wavelengths when the heating laser is turned on and then off. Large thermal-optic coefficient and thermal expansion coefficient of silicon render a high sensitivity that can also be easily tuned by altering the heating laser power. Furthermore, the large thermal diffusivity and the small mass of the thin silicon film endow a fast sensor response. (C) 2015 Optical Society of America
C1 [Liu, Guigen; Qiao, Wei; Han, Ming] Univ Nebraska, Dept Elect & Comp Engn, Lincoln, NE 68588 USA.
[Hou, Weilin] Naval Res Lab, Stennis Space Ctr, MS 39529 USA.
RP Han, M (reprint author), Univ Nebraska, Dept Elect & Comp Engn, Lincoln, NE 68588 USA.
EM mhan@unl.edu
FU U.S. Naval Research Laboratory [N0017315P0376]; U.S. Office of Naval
Research [N000141310159]
FX This work was partially supported U.S. Naval Research Laboratory under
contract no. N0017315P0376 and U.S. Office of Naval Research under grant
no. N000141310159. We thank Prof. Zhaoyan Zhang for stimulating
discussions on the heat-transfer problem and Mr. Dustin Dam for
technical support on the high-speed spectrometer.
NR 14
TC 3
Z9 3
U1 5
U2 23
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 MAY 18
PY 2015
VL 23
IS 10
BP 13562
EP 13570
DI 10.1364/OE.23.013562
PG 9
WC Optics
SC Optics
GA CI4GQ
UT WOS:000354706800102
PM 26074604
ER
PT J
AU Lesher, SR
Casarella, C
Aprahamian, A
Crider, BP
Ikeyama, R
Marsh, IR
McEllistrem, MT
Peters, EE
Prados-Estevez, FM
Smith, MK
Tully, ZR
Vanhoy, JR
Yates, SW
AF Lesher, S. R.
Casarella, C.
Aprahamian, A.
Crider, B. P.
Ikeyama, R.
Marsh, I. R.
McEllistrem, M. T.
Peters, E. E.
Prados-Estevez, F. M.
Smith, M. K.
Tully, Z. R.
Vanhoy, J. R.
Yates, S. W.
TI Collectivity of 0(+) states in Gd-160
SO PHYSICAL REVIEW C
LA English
DT Article
ID INTERACTING-BOSON-APPROXIMATION; DOPPLER-SHIFT ATTENUATION;
DEFORMED-NUCLEI; PHONON EXCITATION; GAMMA-BAND; MODEL; COEXISTENCE;
VIBRATIONS; NEUTRON; HF-178
AB Excited 0(+) states in Gd-160 have been examined with the (n, n 'gamma.) reaction at incident neutron energies up to 2.8 MeV. Gamma-ray excitation functions and angular distribution measurements allow the confirmation of the existence of 0(+) states at 1379.70 keV and 1558.30 keV, but we reject the assignments of additional previously suggested 0(+) candidates. Limits on the level lifetimes of the observed 0(+) states permit an evaluation of the collectivity of these states.
C1 [Lesher, S. R.; Ikeyama, R.; Marsh, I. R.; Tully, Z. R.] Univ Wisconsin, Dept Phys, La Crosse, WI 54601 USA.
[Lesher, S. R.; Casarella, C.; Aprahamian, A.; Smith, M. K.] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA.
[Crider, B. P.; McEllistrem, M. T.; Prados-Estevez, F. M.; Yates, S. W.] Univ Kentucky, Dept Phys & Astron, Lexington, KY 40506 USA.
[Peters, E. E.; Yates, S. W.] Univ Kentucky, Dept Chem, Lexington, KY 40506 USA.
[Vanhoy, J. R.] US Naval Acad, Dept Phys, Annapolis, MD 21402 USA.
RP Lesher, SR (reprint author), Univ Wisconsin, Dept Phys, La Crosse, WI 54601 USA.
EM slesher@uwlax.edu
FU National Science Foundation [PHY-1205412, PHY-1068192, PHY-1305801]
FX We thank H. E. Baber for his help with accelerator maintenance and
operation. This material is based upon work supported by the National
Science Foundation under Grant Nos. PHY-1205412, PHY-1068192, and
PHY-1305801.
NR 49
TC 1
Z9 1
U1 1
U2 8
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 MAY 18
PY 2015
VL 91
IS 5
AR 054317
DI 10.1103/PhysRevC.91.054317
PG 6
WC Physics, Nuclear
SC Physics
GA CI7VM
UT WOS:000354972900003
ER
PT J
AU Abdelwahab, NM
Adamczyk, L
Adkins, JK
Agakishiev, G
Aggarwal, MM
Ahammed, Z
Alekseev, I
Alford, J
Anson, CD
Aparin, A
Arkhipkin, D
Aschenauer, EC
Averichev, GS
Banerjee, A
Beavis, DR
Bellwied, R
Bhasin, A
Bhati, AK
Bhattarai, P
Bielcik, J
Bielcikova, J
Bland, LC
Bordyuzhin, IG
Borowski, W
Bouchet, J
Brandin, AV
Brovko, SG
Bultmann, S
Bunzarov, I
Burton, TP
Butterworth, J
Caines, H
Sanchez, MCD
Campbell, JM
Cebra, D
Cendejas, R
Cervantes, MC
Chaloupka, P
Chang, Z
Chattopadhyay, S
Chen, HF
Chen, JH
Chen, L
Cheng, J
Cherney, M
Chikanian, A
Christie, W
Codrington, MJM
Contin, G
Cramer, JG
Crawford, HJ
Cui, X
Das, S
Leyva, AD
De Silva, LC
Debbe, RR
Dedovich, TG
Deng, J
Derevschikov, AA
de Souza, RD
di Ruzza, B
Didenko, L
Dilks, C
Ding, F
Djawotho, P
Dong, X
Drachenberg, JL
Draper, JE
Du, CM
Dunkelberger, LE
Dunlop, JC
Efimov, LG
Engelage, J
Engle, KS
Eppley, G
Eun, L
Evdokimov, O
Eyser, O
Fatemi, R
Fazio, S
Fedorisin, J
Filip, P
Fisyak, Y
Flores, CE
Gagliardi, CA
Gangadharan, DR
Garand, D
Geurts, F
Gibson, A
Girard, M
Gliske, S
Greiner, L
Grosnick, D
Gunarathne, DS
Guo, Y
Gupta, A
Gupta, S
Guryn, W
Haag, B
Hamed, A
Han, LX
Haque, R
Harris, JW
Heppelmann, S
Hirsch, A
Hoffmann, GW
Hofman, DJ
Horvat, S
Huang, B
Huang, HZ
Huang, X
Huck, P
Humanic, TJ
Igo, G
Jacobs, WW
Jang, H
Judd, EG
Kabana, S
Kalinkin, D
Kang, K
Kauder, K
Ke, HW
Keane, D
Kechechyan, A
Kesich, A
Khan, ZH
Kikola, DP
Kisel, I
Kisiel, A
Koetke, DD
Kollegger, T
Konzer, J
Koralt, I
Kosarzewski, LK
Kotchenda, L
Kraishan, AF
Kravtsov, P
Krueger, K
Kulakov, I
Kumar, L
Kycia, RA
Lamont, MAC
Landgraf, JM
Landry, KD
Lauret, J
Lebedev, A
Lednicky, R
Lee, JH
Li, C
Li, W
Li, X
Li, X
Li, Y
Li, ZM
Lisa, MA
Liu, F
Ljubicic, T
Llope, WJ
Lomnitz, M
Longacre, RS
Luo, X
Ma, GL
Ma, YG
Mahapatra, DP
Majka, R
Margetis, S
Markert, C
Masui, H
Matis, HS
McDonald, D
McShane, TS
Minaev, NG
Mioduszewski, S
Mohanty, B
Mondal, MM
Morozov, DA
Mustafa, MK
Nandi, BK
Nasim, M
Nayak, TK
Nelson, JM
Nigmatkulov, G
Nogach, LV
Noh, SY
Novak, J
Nurushev, SB
Odyniec, G
Ogawa, A
Oh, K
Ohlson, A
Okorokov, V
Oldag, EW
Olvitt, DL
Page, BS
Pan, YX
Pandit, Y
Panebratsev, Y
Pawlak, T
Pawlik, B
Pei, H
Perkins, C
Pile, P
Planinic, M
Pluta, J
Poljak, N
Poniatowska, K
Porter, J
Poskanzer, AM
Pruthi, NK
Przybycien, M
Putschke, J
Qiu, H
Quintero, A
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
Rusnakova, O
Sahoo, NR
Sahu, PK
Sakrejda, I
Salur, S
Sandacz, A
Sandweiss, J
Sangaline, E
Sarkar, A
Schambach, J
Scharenberg, RP
Schmah, AM
Schmidke, WB
Schmitz, N
Seger, J
Seyboth, P
Shah, N
Shahaliev, E
Shanmuganathan, PV
Shao, M
Sharma, B
Shen, WQ
Shi, SS
Shou, QY
Sichtermann, EP
Simko, M
Skoby, MJ
Smirnov, D
Smirnov, N
Solanki, D
Sorensen, P
Spinka, HM
Srivastava, B
Stanislaus, TDS
Stevens, JR
Stock, R
Strikhanov, M
Stringfellow, B
Sumbera, M
Sun, X
Sun, XM
Sun, Y
Sun, Z
Surrow, B
Svirida, DN
Symons, TJM
Szelezniak, MA
Takahashi, J
Tang, AH
Tang, Z
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
Vandenbroucke, M
Vanfossen, JA
Varma, R
Vasconcelos, GMS
Vasiliev, AN
Vertesi, R
Videbaek, F
Viyogi, YP
Vokal, S
Vossen, A
Wada, M
Wang, F
Wang, G
Wang, H
Wang, JS
Wang, XL
Wang, Y
Wang, Y
Webb, G
Webb, JC
Westfall, GD
Wieman, H
Wissink, SW
Wu, YF
Xiao, Z
Xie, W
Xin, K
Xu, H
Xu, J
Xu, N
Xu, QH
Xu, Y
Xu, Z
Yan, W
Yang, C
Yang, Y
Yang, Y
Ye, Z
Yepes, P
Yi, L
Yip, K
Yoo, IK
Yu, N
Zbroszczyk, H
Zha, W
Zhang, JB
Zhang, JL
Zhang, S
Zhang, XP
Zhang, Y
Zhang, ZP
Zhao, F
Zhao, J
Zhong, C
Zhu, X
Zhu, YH
Zoulkarneeva, Y
Zyzak, M
AF Abdelwahab, N. M.
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. C.
Averichev, G. S.
Banerjee, A.
Beavis, D. R.
Bellwied, R.
Bhasin, A.
Bhati, A. K.
Bhattarai, P.
Bielcik, J.
Bielcikova, J.
Bland, L. C.
Bordyuzhin, I. G.
Borowski, W.
Bouchet, J.
Brandin, A. V.
Brovko, S. G.
Bueltmann, S.
Bunzarov, I.
Burton, T. P.
Butterworth, J.
Caines, H.
Sanchez, M. Calderon de la Barca
Campbell, J. M.
Cebra, D.
Cendejas, R.
Cervantes, M. C.
Chaloupka, P.
Chang, Z.
Chattopadhyay, S.
Chen, H. F.
Chen, J. H.
Chen, L.
Cheng, J.
Cherney, M.
Chikanian, A.
Christie, W.
Codrington, M. J. M.
Contin, G.
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.
Derevschikov, A. A.
de Souza, R. Derradi
di Ruzza, B.
Didenko, L.
Dilks, C.
Ding, F.
Djawotho, P.
Dong, X.
Drachenberg, J. L.
Draper, J. E.
Du, C. M.
Dunkelberger, L. E.
Dunlop, J. C.
Efimov, L. G.
Engelage, J.
Engle, K. S.
Eppley, G.
Eun, L.
Evdokimov, O.
Eyser, O.
Fatemi, R.
Fazio, S.
Fedorisin, J.
Filip, P.
Fisyak, Y.
Flores, C. E.
Gagliardi, C. A.
Gangadharan, D. R.
Garand, D.
Geurts, F.
Gibson, A.
Girard, M.
Gliske, S.
Greiner, L.
Grosnick, D.
Gunarathne, D. S.
Guo, Y.
Gupta, A.
Gupta, S.
Guryn, W.
Haag, B.
Hamed, A.
Han, L-X.
Haque, R.
Harris, J. W.
Heppelmann, S.
Hirsch, A.
Hoffmann, G. W.
Hofman, D. J.
Horvat, S.
Huang, B.
Huang, H. Z.
Huang, X.
Huck, P.
Humanic, T. J.
Igo, G.
Jacobs, W. W.
Jang, H.
Judd, E. G.
Kabana, S.
Kalinkin, D.
Kang, K.
Kauder, K.
Ke, H. W.
Keane, D.
Kechechyan, A.
Kesich, A.
Khan, Z. H.
Kikola, D. P.
Kisel, I.
Kisiel, A.
Koetke, D. D.
Kollegger, T.
Konzer, J.
Koralt, I.
Kosarzewski, L. K.
Kotchenda, L.
Kraishan, A. F.
Kravtsov, P.
Krueger, K.
Kulakov, I.
Kumar, L.
Kycia, R. A.
Lamont, M. A. C.
Landgraf, J. M.
Landry, K. D.
Lauret, J.
Lebedev, A.
Lednicky, R.
Lee, J. H.
Li, C.
Li, W.
Li, X.
Li, X.
Li, Y.
Li, Z. M.
Lisa, M. A.
Liu, F.
Ljubicic, T.
Llope, W. J.
Lomnitz, M.
Longacre, R. S.
Luo, X.
Ma, G. L.
Ma, Y. G.
Mahapatra, D. P.
Majka, R.
Margetis, S.
Markert, C.
Masui, H.
Matis, H. S.
McDonald, D.
McShane, T. S.
Minaev, N. G.
Mioduszewski, S.
Mohanty, B.
Mondal, M. M.
Morozov, D. A.
Mustafa, M. K.
Nandi, B. K.
Nasim, Md.
Nayak, T. K.
Nelson, J. M.
Nigmatkulov, G.
Nogach, L. V.
Noh, S. Y.
Novak, J.
Nurushev, S. B.
Odyniec, G.
Ogawa, A.
Oh, K.
Ohlson, A.
Okorokov, V.
Oldag, E. W.
Olvitt, D. L., Jr.
Page, B. S.
Pan, Y. X.
Pandit, Y.
Panebratsev, Y.
Pawlak, T.
Pawlik, B.
Pei, H.
Perkins, C.
Pile, P.
Planinic, M.
Pluta, J.
Poljak, N.
Poniatowska, K.
Porter, J.
Poskanzer, A. M.
Pruthi, N. K.
Przybycien, M.
Putschke, J.
Qiu, H.
Quintero, A.
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.
Rusnakova, O.
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, W. B.
Schmitz, N.
Seger, J.
Seyboth, P.
Shah, N.
Shahaliev, E.
Shanmuganathan, P. V.
Shao, M.
Sharma, B.
Shen, W. Q.
Shi, S. S.
Shou, Q. Y.
Sichtermann, E. P.
Simko, M.
Skoby, M. J.
Smirnov, D.
Smirnov, N.
Solanki, D.
Sorensen, P.
Spinka, H. M.
Srivastava, B.
Stanislaus, T. D. S.
Stevens, J. R.
Stock, R.
Strikhanov, M.
Stringfellow, B.
Sumbera, M.
Sun, X.
Sun, X. M.
Sun, Y.
Sun, Z.
Surrow, B.
Svirida, D. N.
Symons, T. J. M.
Szelezniak, M. A.
Takahashi, J.
Tang, A. H.
Tang, Z.
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.
Vandenbroucke, M.
Vanfossen, J. A., Jr.
Varma, R.
Vasconcelos, G. M. S.
Vasiliev, A. N.
Vertesi, R.
Videbaek, F.
Viyogi, Y. P.
Vokal, S.
Vossen, A.
Wada, M.
Wang, F.
Wang, G.
Wang, H.
Wang, J. S.
Wang, X. L.
Wang, Y.
Wang, Y.
Webb, G.
Webb, J. C.
Westfall, G. D.
Wieman, H.
Wissink, S. W.
Wu, Y. F.
Xiao, Z.
Xie, W.
Xin, K.
Xu, H.
Xu, J.
Xu, N.
Xu, Q. H.
Xu, Y.
Xu, Z.
Yan, W.
Yang, C.
Yang, Y.
Yang, Y.
Ye, Z.
Yepes, P.
Yi, L.
Yip, K.
Yoo, I-K.
Yu, N.
Zbroszczyk, H.
Zha, W.
Zhang, J. B.
Zhang, J. L.
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 Isolation of flow and nonflow correlations by two- and four-particle
cumulant measurements of azimuthal harmonics in root s(NN)=200 GeV Au+Au
collisions
SO PHYSICS LETTERS B
LA English
DT Article
DE Heavy-ion; Flow; Nonflow
ID RELATIVISTIC NUCLEAR COLLISIONS; COLLECTIVE FLOW
AB A data-driven method was applied to Au+Au collisions at root S-NN = 200 GeV made with the STAR detector at RHIC to isolate pseudorapidity distance Delta eta-dependent and Delta eta-independent correlations by using two- and four-particle azimuthal cumulant measurements. We identified a Delta eta-independent component of the correlation, which is dominated by anisotropic flow and flow fluctuations. It was also found to be independent of. within the measured range of pseudorapidity vertical bar eta vertical bar < 1. In 20-30% central Au+Au collisions, the relative flow fluctuation was found to be 34% +/- 2%(stat.) +/- 3%(sys.) for particles with transverse momentum p(T) less than 2 GeV/c. The Delta eta-dependent part, attributed to nonflow correlations, is found to be 5% +/- 2%(sys.) relative to the flow of the measured second harmonic cumulant at vertical bar Delta eta vertical bar > 0.7. (C) 2015 The Authors. Published by Elsevier B.V.
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[Bhasin, A.; Gupta, A.; Gupta, S.] Univ Jammu, Jammu 180001, India.
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[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.; Nigmatkulov, G.; Okorokov, V.; Strikhanov, M.] Moscow Engn Phys Inst, Moscow 115409, Russia.
[Haque, R.; Kumar, L.; Mohanty, B.] Natl Inst Sci Educ & Res, Bhubaneswar 751005, Orissa, India.
[Anson, C. D.; Campbell, J. M.; 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.] PAN, Inst Phys Nucl, PL-31342 Krakow, Poland.
[Aggarwal, M. M.; Bhati, A. K.; Pruthi, N. K.; Sharma, B.; Stringfellow, B.] Panjab Univ, Chandigarh 160014, India.
[Cendejas, R.; Dilks, C.; Heppelmann, S.] Penn State Univ, University Pk, PA 16802 USA.
[Derevschikov, A. A.; Minaev, N. G.; Morozov, D. A.; Nogach, L. V.; Nurushev, S. B.; Vasiliev, A. N.] Inst High Energy Phys, Protvino 142281, Russia.
[Garand, D.; Hirsch, A.; Konzer, J.; Li, X.; Scharenberg, R. P.; Srivastava, B.; Wang, F.; 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.; Roberts, J. B.; Xin, K.; Yepes, P.] Rice Univ, Houston, TX 77251 USA.
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[Chen, J. H.; Han, L-X.; Li, W.; Ma, G. L.; Ma, Y. G.; Shen, W. Q.; Shou, Q. Y.; Zhang, S.; Zhong, C.; Zhu, Y. H.] Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China.
[Borowski, W.; Kabana, S.] SUBATECH, F-44307 Nantes, France.
[Gunarathne, D. S.; Kraishan, A. F.; Li, X.; Olvitt, D. L., Jr.; Surrow, B.; Vandenbroucke, M.] Temple Univ, Philadelphia, PA 19122 USA.
[Cervantes, M. C.; Chang, Z.; Cherney, M.; Djawotho, P.; Gagliardi, C. A.; Hamed, A.; Mioduszewski, S.; Mondal, M. M.; Sahoo, N. R.; Tribble, R. E.] Texas A&M Univ, College Stn, TX 77843 USA.
[Bhattarai, P.; Codrington, M. J. M.; Leyva, A. Davila; Hoffmann, G. W.; Markert, C.; Oldag, E. W.; Ray, R. L.; Schambach, J.; Wada, M.] Univ Texas Austin, Austin, TX 78712 USA.
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[Engle, K. S.] US Naval Acad, Annapolis, MD 21402 USA.
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[Ahammed, Z.; Banerjee, A.; Chattopadhyay, S.; Nayak, T. K.; Roy, A.; Tribedy, P.; Viyogi, Y. P.] Ctr Variable Energy Cyclotron, Kolkata 700064, India.
[Girard, M.; Kikola, D. P.; Kisiel, A.; Kosarzewski, L. K.; Pawlak, T.; Pluta, J.; Poniatowska, K.; Sandacz, A.; Zbroszczyk, H.] Warsaw Univ Technol, PL-00661 Warsaw, Poland.
[Abdelwahab, N. M.; Cramer, J. G.] Univ Washington, Seattle, WA 98195 USA.
[Llope, W. J.; Putschke, J.] Wayne State Univ, Detroit, MI 48201 USA.
WLCAPP, Cairo 11571, Egypt.
[Caines, H.; Chikanian, A.; 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 Yi, L (reprint author), Purdue Univ, W Lafayette, IN 47907 USA.
EM l.yi@yale.edu
RI Rusnak, Jan/G-8462-2014; Sumbera, Michal/O-7497-2014; Fazio, Salvatore
/G-5156-2010; Kycia, Radoslaw/J-4397-2015; Bielcikova, Jana/G-9342-2014;
Chaloupka, Petr/E-5965-2012; Takahashi, Jun/B-2946-2012; Huang,
Bingchu/H-6343-2015; Derradi de Souza, Rafael/M-4791-2013; Xin,
Kefeng/O-9195-2016; Yi, Li/Q-1705-2016; Alekseev, Igor/J-8070-2014;
Svirida, Dmitry/R-4909-2016; Inst. of Physics, Gleb
Wataghin/A-9780-2017; Okorokov, Vitaly/C-4800-2017; Ma,
Yu-Gang/M-8122-2013; Gunarathne, Devika/C-4903-2017;
OI Sumbera, Michal/0000-0002-0639-7323; Kycia,
Radoslaw/0000-0002-6390-4627; Takahashi, Jun/0000-0002-4091-1779; Huang,
Bingchu/0000-0002-3253-3210; Derradi de Souza,
Rafael/0000-0002-2084-7001; Xin, Kefeng/0000-0003-4853-9219; Yi,
Li/0000-0002-7512-2657; Alekseev, Igor/0000-0003-3358-9635; Okorokov,
Vitaly/0000-0002-7162-5345; Ma, Yu-Gang/0000-0002-0233-9900; Gunarathne,
Devika/0000-0002-7155-7418; Ke, Hongwei/0000-0003-1463-7291
FU NERSC Center at LBNL; KISTI Center in Korea; Open Science Grid
consortium; 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; 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;
Korean Research Foundation; GA; FIAS of Germany; DAE of India; DST of
India; CSIR of India; National Science Centre of Poland; National
Research Foundation [NRF-2012004024]; Ministry of Science, Education and
Sports of the Republic of Croatia; RosAtom of Russia; MSMT of the Czech
Republic; RHIC Operations Group and RCF at BNL
FX We thank the RHIC Operations Group and RCF at BNL, the NERSC Center at
LBNL, the KISTI Center in Korea, 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, CNRS/IN2P3, FAPESP CNPq of Brazil, the Ministry of Education
and Science of the Russian Federation, NNSFC, CAS, MoST and MoE of
China, the Korean Research Foundation, GA and MSMT of the Czech
Republic, FIAS of Germany, DAE, DST, and CSIR of India, the National
Science Centre of Poland, National Research Foundation (NRF-2012004024),
the Ministry of Science, Education and Sports of the Republic of
Croatia, and RosAtom of Russia.
NR 26
TC 1
Z9 1
U1 2
U2 35
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0370-2693
EI 1873-2445
J9 PHYS LETT B
JI Phys. Lett. B
PD MAY 18
PY 2015
VL 745
BP 40
EP 47
DI 10.1016/j.physletb.2015.04.033
PG 8
WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA CH2YS
UT WOS:000353892300005
ER
PT J
AU Muller, M
Arbic, BK
Richman, JG
Shriver, JF
Kunze, EL
Scott, RB
Wallcraft, AJ
Zamudio, L
AF Mueller, Malte
Arbic, Brian K.
Richman, James G.
Shriver, Jay F.
Kunze, Eric L.
Scott, Robert B.
Wallcraft, Alan J.
Zamudio, Luis
TI Toward an internal gravity wave spectrum in global ocean models
SO GEOPHYSICAL RESEARCH LETTERS
LA English
DT Article
DE internal waves; internal tides; Garrett Munk spectrum; nonlinear
interactions; global ocean models
ID NEAR-INERTIAL MOTIONS; KINETIC-ENERGY; GENERAL-CIRCULATION; NORTH
PACIFIC; TIDE; VARIABILITY; WIND; DOMAIN
AB High-resolution global ocean models forced by atmospheric fields and tides are beginning to display realistic internal gravity wave spectra, especially as model resolution increases. This paper examines internal waves in global simulations with 0.08 degrees and 0.04 degrees (8 and 4km) horizontal resolutions, respectively. Frequency spectra of internal wave horizontal kinetic energy in the North Pacific lie closer to observations in the 0.04 degrees simulation than in the 0.08 degrees simulation. The horizontal wave number and frequency (K-) kinetic energy spectra contain peaks in the semidiurnal tidal band and near-inertial band, along with a broadband frequency continuum aligned along the linear dispersion relations of low-vertical-mode internal waves. Spectral kinetic energy transfers describe the rate at which nonlinear mechanisms remove or supply kinetic energy in specific K- ranges. Energy is transferred out of low-mode inertial and semidiurnal internal waves into a broad continuum of higher-frequency and higher-wave number internal waves.
C1 [Mueller, Malte] Univ Victoria, Sch Earth & Ocean Sci, Victoria, BC, Canada.
[Mueller, Malte] Norwegian Meteorol Inst, Dept Res & Dev, Oslo, Norway.
[Arbic, Brian K.] Univ Michigan, Dept Earth & Environm Sci, Ann Arbor, MI 48109 USA.
[Richman, James G.; Shriver, Jay F.; Wallcraft, Alan J.] Naval Res Lab, Div Oceanog, Hancock Cty, MS USA.
[Kunze, Eric L.] Northwest Res Associates, Redmond, WA USA.
[Scott, Robert B.] Univ Bretagne Occidentale, Dept Phys, Brest, France.
[Zamudio, Luis] Florida State Univ, Ctr Ocean Atmosphere Predict Studies, Tallahassee, FL 32306 USA.
RP Muller, M (reprint author), Univ Victoria, Sch Earth & Ocean Sci, Victoria, BC, Canada.
EM maltem@met.no
OI Arbic, Brian K/0000-0002-7969-2294
FU Office of Naval Research (ONR) [N00014-11-0487]; ONR; National Science
Foundation (NSF) [OCE-0960820]; University of Michigan; project "HYCOM
global ocean forecast skill assessment" - ONR; project "Freshwater
balance in the coupled ocean-atmosphere system" - ONR; NSF
[OCE-0968131AM02]; CNRS chaire d'excellence; Marie Curie Career
Integration Grant
FX M.M. was supported by a subcontract from Office of Naval Research (ONR)
grant N00014-11-0487 to the University of Victoria. We thank Jody Klymak
for his generous assistance in setting up this subcontract. B.K.A. was
supported by the ONR grant above, National Science Foundation (NSF)
grant OCE-0960820, and University of Michigan faculty startup funds.
J.G.R., J.F.S., A.J.W., and L.Z. were supported by the projects "HYCOM
global ocean forecast skill assessment" and "Freshwater balance in the
coupled ocean-atmosphere system," respectively, both sponsored by ONR.
E.K.'s contribution was supported by NSF Climate-Processes Team grant
OCE-0968131AM02. R.B.S. was funded by a CNRS chaire d'excellence and by
a Marie Curie Career Integration Grant. HYCOM simulations were performed
on the Navy Department of Defense (DoD) Supercomputing Resource Center
IBM iDataPlex computers at Stennis Space Center, Mississippi, using
grants of computer time from the DoD High Performance Computing
Modernization Program. Output files for the two model runs analyzed in
this paper are archived at the Department of the Navy Shared Resource
Center at the Stennis Space Center. The files stored there can be
accessed after obtaining an account at the facility. This is NRL
contribution NRL/JA/7320-14-2423 and has been approved for public
release. The authors thank two anonymous reviewers for their helpful
comments.
NR 28
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U1 1
U2 11
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 0094-8276
EI 1944-8007
J9 GEOPHYS RES LETT
JI Geophys. Res. Lett.
PD MAY 16
PY 2015
VL 42
IS 9
BP 3474
EP 3481
DI 10.1002/2015GL063365
PG 8
WC Geosciences, Multidisciplinary
SC Geology
GA CK0EM
UT WOS:000355878300051
ER
PT J
AU Saide, PE
Peterson, DA
da Silva, A
Anderson, B
Ziemba, LD
Diskin, G
Sachse, G
Hair, J
Butler, C
Fenn, M
Jimenez, JL
Campuzano-Jost, P
Perring, AE
Schwarz, JP
Markovic, MZ
Russell, P
Redemann, J
Shinozuka, Y
Streets, DG
Yan, F
Dibb, J
Yokelson, R
Toon, OB
Hyer, E
Carmichael, GR
AF Saide, Pablo E.
Peterson, David A.
da Silva, Arlindo
Anderson, Bruce
Ziemba, Luke D.
Diskin, Glenn
Sachse, Glen
Hair, Johnathan
Butler, Carolyn
Fenn, Marta
Jimenez, Jose L.
Campuzano-Jost, Pedro
Perring, Anne E.
Schwarz, Joshua P.
Markovic, Milos Z.
Russell, Phil
Redemann, Jens
Shinozuka, Yohei
Streets, David G.
Yan, Fang
Dibb, Jack
Yokelson, Robert
Toon, O. Brian
Hyer, Edward
Carmichael, Gregory R.
TI Revealing important nocturnal and day-to-day variations in fire smoke
emissions through a multiplatform inversion
SO GEOPHYSICAL RESEARCH LETTERS
LA English
DT Article
DE inversion; fire emissions; biomass burning; SEAC4RS; WRF-Chem; AERONET
ID BIOMASS BURNING EMISSIONS; AEROSOL OPTICAL DEPTH; HIGH-RESOLUTION;
ORGANIC AEROSOL; UNITED-STATES; MODEL; FOREST; CARBON; WILDFIRES;
INDONESIA
AB We couple airborne, ground-based, and satellite observations; conduct regional simulations; and develop and apply an inversion technique to constrain hourly smoke emissions from the Rim Fire, the third largest observed in California, USA. Emissions constrained with multiplatform data show notable nocturnal enhancements (sometimes over a factor of 20), correlate better with daily burned area data, and are a factor of 2-4 higher than a priori estimates, highlighting the need for improved characterization of diurnal profiles and day-to-day variability when modeling extreme fires. Constraining only with satellite data results in smaller enhancements mainly due to missing retrievals near the emissions source, suggesting that top-down emission estimates for these events could be underestimated and a multiplatform approach is required to resolve them. Predictions driven by emissions constrained with multiplatform data present significant variations in downwind air quality and in aerosol feedback on meteorology, emphasizing the need for improved emissions estimates during exceptional events.
C1 [Saide, Pablo E.; Carmichael, Gregory R.] Univ Iowa, Ctr Global & Reg Environm Res, Iowa City, IA 52242 USA.
[Peterson, David A.] CNR, Monterey, CA USA.
[da Silva, Arlindo] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Anderson, Bruce; Ziemba, Luke D.; Diskin, Glenn; Hair, Johnathan; Butler, Carolyn; Fenn, Marta] NASA, Langley Res Ctr, Hampton, VA 23665 USA.
[Sachse, Glen] Natl Inst Aerosp, Hampton, VA USA.
[Jimenez, Jose L.; Campuzano-Jost, Pedro] Univ Colorado, Dept Chem & Biochem, Boulder, CO 80309 USA.
[Jimenez, Jose L.; Campuzano-Jost, Pedro] Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA.
[Perring, Anne E.; Schwarz, Joshua P.; Markovic, Milos Z.] NOAA, Earth Syst Res Lab, Boulder, CO USA.
[Russell, Phil; Redemann, Jens] NASA Ames, Moffett Field, CA USA.
[Shinozuka, Yohei] NASA, Ames Res Ctr, Cooperat Res Earth Sci & Technol, Moffett Field, CA 94035 USA.
[Shinozuka, Yohei] Bay Area Environm Res Inst, Petaluma, CA USA.
[Streets, David G.; Yan, Fang] Argonne Natl Lab, Div Energy Syst, Argonne, IL 60439 USA.
[Dibb, Jack] Univ New Hampshire, Inst Study Earth Oceans & Space, Durham, NH 03824 USA.
[Yokelson, Robert] Univ Montana, Dept Chem, Missoula, MT 59812 USA.
[Toon, O. Brian] Univ Colorado, Lab Atmospher & Space Phys, Dept Atmospher & Ocean Sci, Boulder, CO 80309 USA.
[Hyer, Edward] Naval Res Lab, Marine Meteorol Div, Monterey, CA USA.
RP Saide, PE (reprint author), Univ Iowa, Ctr Global & Reg Environm Res, Iowa City, IA 52242 USA.
EM pablo-saide@uiowa.edu
RI Yokelson, Robert/C-9971-2011; Hyer, Edward/E-7734-2011; Perring,
Anne/G-4597-2013; Jimenez, Jose/A-5294-2008; peterson,
david/L-2350-2016; schwarz, joshua/G-4556-2013; Manager, CSD
Publications/B-2789-2015
OI Yokelson, Robert/0000-0002-8415-6808; Hyer, Edward/0000-0001-8636-2026;
Perring, Anne/0000-0003-2231-7503; Jimenez, Jose/0000-0001-6203-1847;
schwarz, joshua/0000-0002-9123-2223;
FU NSF [1049140 NCE]; NASA [NNX11AI52G, NNH12AT27i, NNX12AC03G, NNX12AC20G,
NNX12AC64G]; EPA [83503701]; National Center for Research Resources, a
part of the National Institutes of Health [UL1RR024979]
FX We thank all SEAC4RS participants that made the field experiment
possible, especially Project Manager Hal Maring. We also thank Brent
Holben, Patrick Arnott, Min Hao, Craig Coburn, Adriana Predoi-Cross, and
their staff for establishing and maintaining the AERONET sites used in
this investigation. This work was carried out with the aid of NSF grant
1049140 NCE; NASA grants NNX11AI52G, NNH12AT27i, NNX12AC03G, NNX12AC20G,
and NNX12AC64G; EPA grant 83503701; and grant number UL1RR024979 from
the National Center for Research Resources, a part of the National
Institutes of Health. Its contents are solely the responsibility of the
authors and do not necessarily represent the official views of the
funding institutions. Contact P. E. Saide (pablo-saide@uiowa.edu) or G.
R. Carmichael (gregory-carmichael@uiowa.edu) for data requests.
NR 50
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U1 8
U2 44
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 0094-8276
EI 1944-8007
J9 GEOPHYS RES LETT
JI Geophys. Res. Lett.
PD MAY 16
PY 2015
VL 42
IS 9
BP 3609
EP 3618
DI 10.1002/2015GL063737
PG 10
WC Geosciences, Multidisciplinary
SC Geology
GA CK0EM
UT WOS:000355878300069
ER
PT J
AU Bisset, RN
Wilson, RM
Ticknor, C
AF Bisset, R. N.
Wilson, R. M.
Ticknor, C.
TI Scaling of fluctuations in a trapped binary condensate
SO PHYSICAL REVIEW A
LA English
DT Article
ID BOSE-EINSTEIN CONDENSATION; QUANTUM PHASE-TRANSITION; MOTT INSULATOR;
OPTICAL LATTICE; ATOMIC GAS; SUPERFLUID; MIXTURES; SEGREGATION;
EXCITATIONS; SEPARATION
AB We demonstrate that measurements of number fluctuations within finite cells provide a direct means to study susceptibility scaling in a trapped two-component Bose-Einstein condensate. This system supports a second-order phase transition between miscible (cospatial) and immiscible (symmetry-broken) states that is driven by a diverging susceptibility to magnetic fluctuations. As the transition is approached from the miscible side the magnetic susceptibility is found to depend strongly on the geometry and orientation of the observation cell. However, a scaling exponent consistent with that for the homogenous gas (gamma = 1) can be recovered, for all cells considered, as long as the fit excludes the region in the immediate vicinity of the critical point. As the transition is approached from the immiscible side, the magnetic fluctuations exhibit a nontrivial scaling exponent gamma similar or equal to 1.30. Interestingly, on both sides of the transition, we find it best to extract the exponents using an observation cell that encompasses half of the trapped system. This implies that relatively low-resolution in situ imaging will be sufficient for the investigation of these exponents. We also investigate the gap energy and find exponents nu z = 0.505 on the miscible side and, unexpectedly, nu z = 0.60(3) for the immiscible phase.
C1 [Bisset, R. N.; Ticknor, C.] Los Alamos Natl Lab, Ctr Nonlinear Studies, Los Alamos, NM 87545 USA.
[Bisset, R. N.; Ticknor, C.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA.
[Wilson, R. M.] US Naval Acad, Dept Phys, Annapolis, MD 21402 USA.
[Wilson, R. M.] NIST, Joint Quantum Inst, Gaithersburg, MD 20899 USA.
[Wilson, R. M.] Univ Maryland, Gaithersburg, MD 20899 USA.
RP Bisset, RN (reprint author), Los Alamos Natl Lab, Ctr Nonlinear Studies, Los Alamos, NM 87545 USA.
RI Ticknor, Christopher/B-8651-2014; Bisset, Russell/H-1750-2012;
OI Ticknor, Christopher/0000-0001-9972-4524
FU CNLS; LDRD; LANLNNSA of the U.S. DOE [DE-AC52-06NA25396]; NRC
postdoctoral fellowship
FX We thank B. V. Svistunov and P. B. Blakie for useful discussions. R.N.B.
and C.T. acknowledge support from CNLS, LDRD, and LANL, which is
operated by LANS, LLC for the NNSA of the U.S. DOE (Contract No.
DE-AC52-06NA25396). R.M.W. acknowledges support from an NRC postdoctoral
fellowship.
NR 66
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Z9 2
U1 0
U2 7
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1050-2947
EI 1094-1622
J9 PHYS REV A
JI Phys. Rev. A
PD MAY 15
PY 2015
VL 91
IS 5
AR 053613
DI 10.1103/PhysRevA.91.053613
PG 6
WC Optics; Physics, Atomic, Molecular & Chemical
SC Optics; Physics
GA CI7SN
UT WOS:000354965000008
ER
PT J
AU Lubrano, AL
Field, CR
Newsome, GA
Rogers, DA
Giordano, BC
Johnson, KJ
AF Lubrano, Adam L.
Field, Christopher R.
Newsome, G. Asher
Rogers, Duane A.
Giordano, Braden C.
Johnson, Kevin J.
TI Minimizing thermal degradation in gas chromatographic quantitation of
pentaerythritol tetranitrate
SO JOURNAL OF CHROMATOGRAPHY A
LA English
DT Article
DE Pentaerythriol tetranitrate (PETN); Gas chromatography; Thermal
desorption; Electron capture detection; High-resolution mass
spectrometry
ID DEPOSITION CALIBRATION METHOD; DESORPTION INSTRUMENTATION; VAPOR;
EXPLOSIVES; PRESSURE; SPECTROMETRY; PERFORMANCE; IONIZATION; TNT; RDX
AB An analytical method for establishing calibration curves for the quantitation of pentaerythriol tetranitrate (PETN) from sorbent-filled thermal desorption tubes by gas chromatography with electron capture detection (TDS-GC-ECD) was developed. As PETN has been demonstrated to thermally degrade under typical GC instrument conditions, peaks corresponding to both PETN degradants and molecular PETN are observed. The retention time corresponding to intact PETN was verified by high-resolution mass spectrometry with a flowing atmospheric pressure afterglow (FAPA) ionization source, which enabled soft ionization of intact PETN eluting the GC and subsequent accurate-mass identification. The GC separation parameters were transferred to a conventional GC-ECD instrument where analytical method-induced PETN degradation was further characterized and minimized. A method calibration curve was established by direct liquid deposition of PETN standard solutions onto the glass frit at the head of sorbent-filled thermal desorption tubes. Two local, linear relationships between detector response and PETN concentration were observed, with a total dynamic range of 0.25-25 ng. Published by Elsevier B.V.
C1 [Lubrano, Adam L.; Newsome, G. Asher] Nova Res Inc, Alexandria, VA 22308 USA.
[Field, Christopher R.; Giordano, Braden C.; Johnson, Kevin J.] Naval Tech Ctr Safety & Survivabil, US Naval Res Lab, Washington, DC 20375 USA.
[Rogers, Duane A.] US Naval Res Lab, Washington, DC 20375 USA.
RP Johnson, KJ (reprint author), Naval Tech Ctr Safety & Survivabil, US Naval Res Lab, Code 6180,4555 Overlook Ave SW, Washington, DC 20375 USA.
EM kevin.johnson@nrl.navy.mil
RI Newsome, G. Asher/J-8970-2012
OI Newsome, G. Asher/0000-0003-1683-2197
FU Department of Homeland Security Science and Technology Directorate
FX The authors would like to acknowledge Jacob Shelley and the Gary Hieftje
Research Group at the Indiana University Department of Chemistry for
providing the FAPA ionization source, and Mark Hammond at the US Naval
Research Laboratory for software design. This work was funded by the
Department of Homeland Security Science and Technology Directorate.
NR 22
TC 3
Z9 3
U1 4
U2 21
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0021-9673
EI 1873-3778
J9 J CHROMATOGR A
JI J. Chromatogr. A
PD MAY 15
PY 2015
VL 1394
BP 154
EP 158
DI 10.1016/j.chroma.2015.03.006
PG 5
WC Biochemical Research Methods; Chemistry, Analytical
SC Biochemistry & Molecular Biology; Chemistry
GA CG9CR
UT WOS:000353612500019
PM 25841610
ER
PT J
AU Calame, JP
AF Calame, Jeffrey P.
TI Molecular Dynamic Study of Dielectric Polarization and Ferroelectricity
in a Model Polar Polymer
SO JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
LA English
DT Article
DE alkanes; dielectric relaxation; electrostatic interactions;
ferroelectric polymer; lamella; molecular dynamics; semicrystalline
polymer; slow dynamics; torsional dynamics
ID MELT-CRYSTALLIZED POLYETHYLENE; BISPHENOL-A-POLYCARBONATE;
POLY(VINYLIDENE FLUORIDE); VINYLIDENE FLUORIDE; INTERLAMELLAR STRUCTURE;
ELECTROACTIVE POLYMERS; LIQUID ALKANES; ISING-MODEL; N-ALKANES;
SIMULATIONS
AB Molecular dynamics simulations are used to explore the polarization response of a lamellar crystal consisting of folded chains of a highly simplified model polar polymer. The system is based on a united atom model of polyethylene with constrained bond lengths and bond angles, and it is endowed with artificial partial charges placed on the united atoms to give it a simple polar character. Simulations performed with various temperatures, electric field directions, and electric field application histories reveal a complicated sequence of reorientation processes, including pronounced ferroelectric behavior. The sequence includes a weak, temperature-independent prompt response, and a slow-rising delay regime with stretched exponential behavior and thermally-activated reorientation parameters consistent with trans-gauche (TG) barrier crossings in the amorphous phase. When the delay regime has progressed sufficiently, a primary large-amplitude response due to organized rotation of large subsegments in the crystalline phase occurs in a rapid manner that requires relatively few TG barrier crossings. A final, extremely slow rise in residual polarization completes the sequence. (c) 2015 Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2015, 53, 740-759
C1 Naval Res Lab, Washington, DC 20375 USA.
RP Calame, JP (reprint author), Naval Res Lab, 4555 Overlook SW, Washington, DC 20375 USA.
EM jeffrey.calame@nrl.navy.mil
FU U.S. Office of Naval Research
FX This work was supported by the U.S. Office of Naval Research.
NR 67
TC 0
Z9 0
U1 5
U2 28
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0887-6266
EI 1099-0488
J9 J POLYM SCI POL PHYS
JI J. Polym. Sci. Pt. B-Polym. Phys.
PD MAY 15
PY 2015
VL 53
IS 10
BP 740
EP 759
DI 10.1002/polb.23696
PG 20
WC Polymer Science
SC Polymer Science
GA CF4XN
UT WOS:000352557400007
ER
PT J
AU Daniele, MA
Boyd, DA
Mott, DR
Ligler, FS
AF Daniele, Michael A.
Boyd, Darryl A.
Mott, David R.
Ligler, Frances S.
TI 3D hydrodynamic focusing microfluidics for emerging sensing technologies
SO BIOSENSORS & BIOELECTRONICS
LA English
DT Article
DE Microfluidics; Sensors; Hydrodynamic focusing; Flow cytometry;
Microfluidic fabrication
ID CIRCULATING TUMOR-CELLS; MICRO-COULTER COUNTER; FLOW-CYTOMETRY;
T-SENSOR; MICROFIBERS; SEPARATION; BIOSENSOR; BACTERIA; CHANNEL; FLUID
AB While the physics behind laminar flows has been studied for 200 years, understanding of how to use parallel flows to augment the capabilities of microfluidic systems has been a subject of study primarily over the last decade. The use of one flow to focus another within a microfluidic channel has graduated from a two-dimensional to a three-dimensional process and the design principles are only now becoming established. This review explores the underlying principles for hydrodynamic focusing in three dimensions (3D) using miscible fluids and the application of these principles for creation of biosensors, separation of cells and particles for sample manipulation, and fabrication of materials that could be used for biosensors. Where sufficient information is available, the practicality of devices implementing fluid flows directed in 3D is evaluated and the advantages and limitations of 3D hydrodynamic focusing for the particular application are highlighted. (C) 2014 Elsevier B.V. All rights reserved.
C1 [Daniele, Michael A.; Boyd, Darryl A.] US Navy, Res Lab, Ctr Biomol Sci & Engn, Washington, DC 20375 USA.
[Mott, David R.] US Navy, Res Lab, Labs Computat Phys & Fluid Dynam, Washington, DC 20375 USA.
[Ligler, Frances S.] Univ N Carolina, Dept Biomed Engn, Chapel Hill, NC 27515 USA.
[Ligler, Frances S.] N Carolina State Univ, Raleigh, NC 27695 USA.
RP Daniele, MA (reprint author), US Navy, Res Lab, Ctr Biomol Sci & Engn, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM michael.daniele.ctr@nrl.navy.mil
OI Mott, David/0000-0002-7863-456X
FU Lampe Endowed Chair at NC State University; Office of Naval Research
(ONR) 6.1 work unit [MA041-06-41-9899]
FX This work was funded by the Lampe Endowed Chair at NC State University
and the Office of Naval Research (ONR) 6.1 work unit MA041-06-41-9899.
M.A. Daniele and D.A. Boyd contributed to this work as National Research
Council (NRC) Postdoctoral Associates. The authors thank Peter Howell,
now at the National Institutes of Standards and Technology, for his
seminal contributions to the concepts reviewed in this paper. The views
are those of the authors and do not represent the opinion or policy of
the U.S. Navy or Depal iment of Defense.
NR 94
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Z9 10
U1 21
U2 154
PU ELSEVIER ADVANCED TECHNOLOGY
PI OXFORD
PA OXFORD FULFILLMENT CENTRE THE BOULEVARD, LANGFORD LANE, KIDLINGTON,
OXFORD OX5 1GB, OXON, ENGLAND
SN 0956-5663
EI 1873-4235
J9 BIOSENS BIOELECTRON
JI Biosens. Bioelectron.
PD MAY 15
PY 2015
VL 67
SI SI
BP 25
EP 34
DI 10.1016/j.bios.2014.07.002
PG 10
WC Biophysics; Biotechnology & Applied Microbiology; Chemistry, Analytical;
Electrochemistry; Nanoscience & Nanotechnology
SC Biophysics; Biotechnology & Applied Microbiology; Chemistry;
Electrochemistry; Science & Technology - Other Topics
GA CC1BT
UT WOS:000350076900005
PM 25041926
ER
PT J
AU Lu, JW
Poon, SJ
Wolf, SA
Weaver, BD
McMarr, PJ
Hughes, H
Chen, E
AF Lu, Jiwei
Poon, S. Joseph
Wolf, Stuart A.
Weaver, Bradley D.
McMarr, Patrick J.
Hughes, Harold
Chen, Eugene
TI Radiation effects on the magnetism and the spin dependent transport in
magnetic materials and nanostructures for spintronic applications
SO JOURNAL OF MATERIALS RESEARCH
LA English
DT Article
ID HEAVY-ION IRRADIATION; TUNNEL-JUNCTIONS; ROOM-TEMPERATURE;
NEUTRON-IRRADIATION; EXCHANGE BIAS; INVAR-ALLOYS; FILMS; ANISOTROPY; FE;
NI
AB Spintronics utilizes spin or magnetism to provide new ways to store and process information and is primarily associated with the utilization of spin polarized currents in memory and logic devices. With the end of silicon transistor technology in sight, spintronics can provide new paradigms for information processing and storage. Compared to charge based electronics, the advantages of magnetism/spin based devices are nonvolatility and ultra low power. In particular, magnetoresistive random access memories (MRAMs) are known to be Rad Hard [HXNV0100 64K x 16 Non-Volatile Magnetic RAM (www.honeywell.com/aerospace), S. Gerardin and A. Paccagnella, IEEE Trans. Nucl. Sci.57(6), 3016-3039 (2010), R.R. Katti, J. Lintz, L. Sundstrom, T. Marques, S. Scoppettuolo, and D. Martin, Proceedings of IEEE Radiation Effects Data Workshop, 103-105 (2009)] and are considered to be critical components for space and military systems due to their very low power consumption and nonvolatility. However, advances in the magnetic nanostructures and new materials for the scalability of MRAM and other potential applications require a re-evaluation of their radiation hardness. This review focuses mainly on recent progress in understanding the effects of irradiation on the magnetic materials and magnetic structures that are related to MRAM technology. Up to date, the most pronounced effects on the microstructures and the properties are linked to the displacement damage associated with heavy ion irradiation; however, the thermal effect is also important as it acts as an annealing process to recover the damage partially. Critical metrics for the magnetic tunnel junctions for postmortem characterizations will also be discussed. Finally, with the introduction of new perpendicular magnetic layers and the very thin MgO barrier layer in the next generation MRAM, the effects of the ionization damage shall be studied in the future.
C1 [Lu, Jiwei; Wolf, Stuart A.] Univ Virginia, Dept Mat Sci & Engn, Charlottesville, VA 22904 USA.
[Poon, S. Joseph; Wolf, Stuart A.] Univ Virginia, Dept Phys, Charlottesville, VA 22904 USA.
[Weaver, Bradley D.; McMarr, Patrick J.; Hughes, Harold] Naval Res Lab, Washington, DC 20375 USA.
[Chen, Eugene] Samsung Semicond Inc, San Jose, CA 95134 USA.
RP Lu, JW (reprint author), Univ Virginia, Dept Mat Sci & Engn, Charlottesville, VA 22904 USA.
EM jl5tk@virginia.edu
FU Defense Threat Reduction Agency [HDTRA1-11-1-0024]; National Science
Foundation [ECCS-1344218]
FX J.W. L, S.J. P, B.D. W and E.C. are grateful to the support from the
Defense Threat Reduction Agency (Grant No. HDTRA1-11-1-0024). J.W. L and
S.A. W. are supported in part by the National Science Foundation (Award
number: ECCS-1344218).
NR 73
TC 0
Z9 0
U1 1
U2 15
PU CAMBRIDGE UNIV PRESS
PI NEW YORK
PA 32 AVENUE OF THE AMERICAS, NEW YORK, NY 10013-2473 USA
SN 0884-2914
EI 2044-5326
J9 J MATER RES
JI J. Mater. Res.
PD MAY 14
PY 2015
VL 30
IS 9
BP 1430
EP 1439
DI 10.1557/jmr.2014.413
PG 10
WC Materials Science, Multidisciplinary
SC Materials Science
GA CJ1ZK
UT WOS:000355283500022
ER
PT J
AU Whitener, KE
Stine, R
Robinson, JT
Sheehan, PE
AF Whitener, Keith E., Jr.
Stine, Rory
Robinson, Jeremy T.
Sheehan, Paul E.
TI Graphene as Electrophile: Reactions of Graphene Fluoride
SO JOURNAL OF PHYSICAL CHEMISTRY C
LA English
DT Article
ID SELF-ASSEMBLED MONOLAYERS; WALLED CARBON NANOTUBES; ACTIVATED CARBON;
SIDEWALL FUNCTIONALIZATION; OXIDE; ADSORPTION; THIOL; REACTIVITY;
CONVERSION; GRAPHITE
AB Fluorinated graphene obtained by exposing single-layer CVD-grown graphene to xenon difluoride was reacted with a series of amine-, alcohol-, and sulfur-bearing nucleophiles, and the progress and nature of the reactions were monitored using X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, and conductivity measurements. The results of these experiments indicate that amine and alcohol nucleophiles can displace the fluorine groups to form covalent bonds to the graphene. For nucleophiles with more than one possible reactive site, close examination of XPS features reveals the orientation of these groups on the graphene. Sulfur nucleophiles act preferentially as reducing agents, removing fluorine rather than replacing it. Finally, a proof-of-principle nucleophilic substitution is performed on bulk graphite fluoride, showing that the chemical functionality of graphite can be extended through nucleophilic substitution in an analogous manner to that of single-layer graphene.
C1 [Whitener, Keith E., Jr.; 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, Elect Sci & Technol Div, Washington, DC 20375 USA.
RP Whitener, KE (reprint author), US Naval Res Lab, Div Chem, Washington, DC 20375 USA.
EM keith.whitener@nrl.navy.mil
RI Stine, Rory/C-6709-2013; Sheehan, Paul/B-4793-2010
OI Sheehan, Paul/0000-0003-2668-4124
FU Naval Research Laboratory Nanoscale Science Institute; Office of Naval
Research
FX This work has been supported by the Naval Research Laboratory Nanoscale
Science Institute and by the Office of Naval Research. This research was
performed while K.E.W. held a National Research Council Research
Associateship Award at the U.S. Naval Research Laboratory.
NR 34
TC 15
Z9 15
U1 9
U2 58
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1932-7447
J9 J PHYS CHEM C
JI J. Phys. Chem. C
PD MAY 14
PY 2015
VL 119
IS 19
BP 10507
EP 10512
DI 10.1021/acs.jpcc.5b02730
PG 6
WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science,
Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA CI6ZH
UT WOS:000354912200039
ER
PT J
AU Cheng, GL
Tomczyk, M
Lu, SC
Veazey, JP
Huang, MC
Irvin, P
Ryu, S
Lee, H
Eom, CB
Hellberg, CS
Levy, J
AF Cheng, Guanglei
Tomczyk, Michelle
Lu, Shicheng
Veazey, Joshua P.
Huang, Mengchen
Irvin, Patrick
Ryu, Sangwoo
Lee, Hyungwoo
Eom, Chang-Beom
Hellberg, C. Stephen
Levy, Jeremy
TI Electron pairing without superconductivity
SO NATURE
LA English
DT Article
ID NB-DOPED SRTIO3; T-J MODEL; GROUND-STATE; QUANTUM-DOT; GAS; TEMPERATURE;
FIELD; SEMICONDUCTORS; SPECTROSCOPY; TRANSITION
AB Strontium titanate (SrTiO3) is the first and best known superconducting semiconductor(1). It exhibits an extremely low carrier density threshold for superconductivity(2), and possesses a phase diagram similar to that of high-temperature superconductors(3,4)-two factors that suggest an unconventional pairing mechanism. Despite sustained interest for 50 years, direct experimental insight into the nature of electron pairing in SrTiO3 has remained elusive. Here we perform transport experiments with nanowire-based single-electron transistors at the interface between SrTiO3 and a thin layer of lanthanum aluminate, LaAlO3. Electrostatic gating reveals a series of two-electron conductance resonances-paired electron states-that bifurcate above a critical pairing field B-p of about 1-4 tesla, an order of magnitude larger than the superconducting critical magnetic field. For magnetic fields below B-p, these resonances are insensitive to the applied magnetic field; for fields in excess of B-p, the resonances exhibit a linear Zeeman-like energy splitting. Electron pairing is stable at temperatures as high as 900 millikelvin, well above the superconducting transition temperature (about 300 millikelvin). These experiments demonstrate the existence of a robust electronic phase in which electrons pair without forming a superconducting state. Key experimental signatures are captured by a model involving an attractive Hubbard interaction that describes real-space electron pairing as a precursor to superconductivity.
C1 [Cheng, Guanglei; Tomczyk, Michelle; Lu, Shicheng; Veazey, Joshua P.; Huang, Mengchen; Irvin, Patrick; Levy, Jeremy] Univ Pittsburgh, Dept Phys & Astron, Pittsburgh, PA 15260 USA.
[Cheng, Guanglei; Tomczyk, Michelle; Lu, Shicheng; Huang, Mengchen; Irvin, Patrick; Levy, Jeremy] Pittsburgh Quantum Inst, Pittsburgh, PA 15260 USA.
[Ryu, Sangwoo; Lee, Hyungwoo; Eom, Chang-Beom] Univ Wisconsin, Dept Mat Sci & Engn, Madison, WI 53706 USA.
[Hellberg, C. Stephen] Naval Res Lab, Ctr Computat Mat Sci, Washington, DC 20375 USA.
RP Levy, J (reprint author), Univ Pittsburgh, Dept Phys & Astron, Pittsburgh, PA 15260 USA.
EM jlevy@pitt.edu
RI Eom, Chang-Beom/I-5567-2014; Irvin, Patrick/E-2159-2012;
OI Irvin, Patrick/0000-0002-0248-2758; Tomczyk,
Michelle/0000-0003-4770-2117
FU ARO MURI [W911NF-08-1-0317]; AFOSR MURI [FA9550-10-1-0524,
FA9550-12-1-0342]; National Science Foundation [DMR-1104191,
DMR-1124131, DMR-1234096]; Office of Naval Research through the Naval
Research Laboratory's Basic Research Program
FX We thank A. Akhmerov, A. Annadi, S. Frolov, R. Lutchyn, C. Nayak and D.
Pekker for discussions. This work was supported by ARO MURI
W911NF-08-1-0317 (J.L.), AFOSR MURI FA9550-10-1-0524 (C.-B.E., J.L.) and
FA9550-12-1-0342 (C.-B.E.), grants from the National Science Foundation
DMR-1104191 (J.L.), DMR-1124131 (C.-B.E., J.L.) and DMR-1234096
(C.-B.E.), and the Office of Naval Research through the Naval Research
Laboratory's Basic Research Program (C.S.H.).
NR 56
TC 24
Z9 24
U1 20
U2 112
PU NATURE PUBLISHING GROUP
PI LONDON
PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
SN 0028-0836
EI 1476-4687
J9 NATURE
JI Nature
PD MAY 14
PY 2015
VL 521
IS 7551
BP 196
EP +
DI 10.1038/nature14398
PG 16
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA CH9SY
UT WOS:000354377800053
PM 25971511
ER
PT J
AU Papeer, J
Botton, M
Gordon, D
Sprangle, P
Fibich, G
Sheinfux, HH
Zigler, A
Henis, Z
AF Papeer, J.
Botton, M.
Gordon, D.
Sprangle, P.
Fibich, G.
Sheinfux, H. Herzig
Zigler, A.
Henis, Z.
TI Multi variable control of filamentation of femtosecond laser pulses
propagating in air
SO JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
LA English
DT Article; Proceedings Paper
CT 5th International Symposium on Filamentation (COFIL)
CY SEP, 2014
CL Shanghai, PEOPLES R CHINA
DE filamentation; high power laser; laser propagation in atmosphere
ID TRANSPARENT MEDIA; PLASMA FILAMENTS; DISCHARGES; DISTANCE; LIGHT
AB A comprehensive approach for control of filamentation and generation of a high density conductive channel during femtosecond intense laser pulse propagation in air is being reviewed. Imposing astigmatism on the beam with a tilted lens allows obtaining a single stable filament out of a high power pulse (orders of magnitude higher than the critical power), which would otherwise generate random multiple filamentation pattern. The collapse distance of filaments is controlled with a double lens setup. Once the filament is stabilized, a substantially extended lifetime of the high density plasma channel generated in its wake is experimentally demonstrated using combination of femtosecond and nanosecond laser pulses. Free electron density above 10(15) cm(-3) in the formed plasma filament is measured to sustain for over 30 ns. This high density plasma lifetime prolongation of more than one order of magnitude is achieved by properly timed irradiation of the filament with a relatively low intensity nanosecond laser pulse, in comparison to a filament without such irradiation. The experimental results are in good agreement with our theoretical model that follows the evolution of the temperature and density of various molecules, atoms and ion species. The results point to the possibility of generating substantially long time duration, stable high density plasma filaments in air.
C1 [Papeer, J.; Botton, M.; Zigler, A.; Henis, Z.] Hebrew Univ Jerusalem, Racah Inst Phys, IL-91904 Jerusalem, Israel.
[Gordon, D.; Sprangle, P.] Naval Res Lab, Plasma Div, Washington, DC 20375 USA.
[Fibich, G.] Tel Aviv Univ, Sch Math Sci, IL-69978 Tel Aviv, Israel.
[Sheinfux, H. Herzig] Technion Israel Inst Technol, Dept Phys, IL-32000 Haifa, Israel.
[Sheinfux, H. Herzig] Technion Israel Inst Technol, Inst Solid State, IL-32000 Haifa, Israel.
RP Papeer, J (reprint author), Hebrew Univ Jerusalem, Racah Inst Phys, IL-91904 Jerusalem, Israel.
EM evgeny.papeer@mail.huji.ac.il
NR 44
TC 4
Z9 4
U1 1
U2 20
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0953-4075
EI 1361-6455
J9 J PHYS B-AT MOL OPT
JI J. Phys. B-At. Mol. Opt. Phys.
PD MAY 14
PY 2015
VL 48
IS 9
SI SI
AR 094005
DI 10.1088/0953-4075/48/9/094005
PG 10
WC Optics; Physics, Atomic, Molecular & Chemical
SC Optics; Physics
GA CF7MW
UT WOS:000352741600006
ER
PT J
AU Isaacs, RA
Zhu, H
Preston, C
Mansour, A
LeMieux, M
Zavalij, PY
Jaim, HMI
Rabin, O
Hu, L
Salamanca-Riba, LG
AF Isaacs, R. A.
Zhu, H.
Preston, Colin
Mansour, A.
LeMieux, M.
Zavalij, P. Y.
Jaim, H. M. Iftekhar
Rabin, O.
Hu, L.
Salamanca-Riba, L. G.
TI Nanocarbon-copper thin film as transparent electrode
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID NANOWIRE NETWORKS; METAL; NANOFIBERS; DEPOSITION; SURFACE
AB Researchers seeking to enhance the properties of metals have long pursued incorporating carbon in the metallic host lattice in order to combine the strongly bonded electrons in the metal lattice that yield high ampacity and the free electrons available in carbon nanostructures that give rise to high conductivity. The incorporation of carbon nanostructures into the copper lattice has the potential to improve the current density of copper to meet the ever-increasing demands of nanoelectronic devices. We report on the structure and properties of carbon incorporated in concentrations up to 5 wt. % (similar to 22 at. %) into the crystal structure of copper. Carbon nanoparticles of 5 nm-200 nm in diameter in an interconnecting carbon matrix are formed within the bulk Cu samples. The carbon does not phase separate after subsequent melting and re-solidification despite the absence of a predicted solid solution at such concentrations in the C-Cu binary phase diagram. This material, so-called, Cu covetic, makes deposition of Cu films containing carbon with similar microstructure to the metal possible. Copper covetic films exhibit greater transparency, higher conductivity, and resistance to oxidation than pure copper films of the same thickness, making them a suitable choice for transparent conductors. (C) 2015 AIP Publishing LLC.
C1 [Isaacs, R. A.; Zhu, H.; Preston, Colin; LeMieux, M.; Jaim, H. M. Iftekhar; Rabin, O.; Hu, L.; Salamanca-Riba, L. G.] Univ Maryland, Mat Sci & Engn Dept, College Pk, MD 20742 USA.
[Mansour, A.] Naval Surface Warfare Ctr, Carderock Div, West Bethesda, MD 20817 USA.
[Zavalij, P. Y.] Univ Maryland, Dept Chem & Biochem, College Pk, MD 20742 USA.
[Rabin, O.] Univ Maryland, Inst Res Elect & Appl Phys, College Pk, MD 20742 USA.
RP Hu, L (reprint author), Univ Maryland, Mat Sci & Engn Dept, College Pk, MD 20742 USA.
EM binghu@umd.edu; riba@umd.edu
RI Zavalij, Peter/H-3817-2012; Rabin, Oded/E-5791-2011; Isaacs,
Romaine/A-3453-2016; Hu, Liangbing/N-6660-2013
OI Zavalij, Peter/0000-0001-5762-3469; Isaacs, Romaine/0000-0003-2401-7475;
FU DARPA/ARL [W911NF13100]; ONR [N000141410042]; University of Maryland
Faculty Incentives Program; University of Maryland Nanocenter; NISP lab
FX The copper covetic 5% bulk samples were provided by Third Millennium
Materials, LLC in Waverly, Ohio. We acknowledge support from DARPA/ARL
under Contract No. W911NF13100 and ONR Contract No. N000141410042 and
the University of Maryland Faculty Incentives Program, the University of
Maryland Nanocenter and the NISP lab. We thank the Center for Nanoscale
Science and Technology at NIST for the use of the FIB/SEM.
NR 28
TC 3
Z9 3
U1 9
U2 63
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 MAY 11
PY 2015
VL 106
IS 19
AR 193108
DI 10.1063/1.4921263
PG 5
WC Physics, Applied
SC Physics
GA CI8GI
UT WOS:000355008100037
ER
PT J
AU Matis, BR
Houston, BH
Baldwin, JW
AF Matis, Bernard R.
Houston, Brian H.
Baldwin, Jeffrey W.
TI Influence of spatial inhomogeneity on electronic and magnetotransport in
graphene
SO PHYSICAL REVIEW B
LA English
DT Article
ID CHEMICAL-VAPOR-DEPOSITION; GRAIN-BOUNDARIES; LARGE-AREA; FILMS;
PERFORMANCE
AB We present room temperature electronic and magnetotransport measurements of polycrystalline graphene, grown by chemical vapor deposition, on a SiO2 dielectric. The measured graphene devices are intentionally spatially inhomogeneous such that the length of the sample is much greater (>1000 times) than the average grain size. At magnetic field B = 0 T the electronic transport is well described by a diffusive transport model with contributions from grain boundary scattering significantly larger in the high charge carrier density limit. We find the largest percent change in the magnetoresistivity occurs at the film's Dirac point where the magnetotransport is largely dependent upon charge disorder. Away from the Dirac point we find a modified expression for the charge carrier density dependence of the magnetoresistivity with respect to the case of single-crystal graphene.
C1 [Matis, Bernard R.; Houston, Brian H.; Baldwin, Jeffrey W.] Naval Res Lab, Washington, DC 20375 USA.
RP Matis, BR (reprint author), Naval Res Lab, Code 7130, Washington, DC 20375 USA.
EM bernard.matis@nrl.navy.mil
FU Office of Naval Research; NRL Karles Fellow program
FX The authors gratefully acknowledge the members of the technical staff of
the Institute for Nanoscience at NRL, David W. Zapotok and Dean R. St.
Amand. This work was supported by the Office of Naval Research. B.R.M.
gratefully acknowledges support through the NRL Karles Fellow program.
NR 23
TC 0
Z9 0
U1 1
U2 16
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 MAY 11
PY 2015
VL 91
IS 20
AR 205406
DI 10.1103/PhysRevB.91.205406
PG 5
WC Physics, Condensed Matter
SC Physics
GA CH9JP
UT WOS:000354352200008
ER
PT J
AU Zhang, B
David, LP
Jones, C
Andrade-Santos, F
O'Sullivan, E
Dahle, H
Nulsen, PEJ
Clarke, TE
Pointecouteau, E
Pratt, GW
Arnaud, M
Vrtilek, JM
Ji, L
van Weeren, RJ
Kraft, RP
Kong, X
AF Zhang, B.
David, L. P.
Jones, C.
Andrade-Santos, F.
O'Sullivan, E.
Dahle, H.
Nulsen, P. E. J.
Clarke, T. E.
Pointecouteau, E.
Pratt, G. W.
Arnaud, M.
Vrtilek, J. M.
Ji, L.
van Weeren, R. J.
Kraft, R. P.
Kong, X.
TI CHANDRA AND XMM-NEWTON OBSERVATIONS OF THE MERGING CLUSTER OF GALAXIES
PLCK G036.7+14.9
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE cosmology: observations; galaxies: clusters: general; galaxies:
clusters: individual (PLCK G036.7+14.9); X-rays: galaxies: clusters
ID ACTIVE GALACTIC NUCLEI; INTERACTION CROSS-SECTION; DIGITAL SKY SURVEY;
X-RAY-CLUSTERS; COOLING FLOWS; DARK-MATTER; COSMOLOGICAL SIMULATIONS;
TEMPERATURE PROFILES; REPRESENTATIVE SAMPLE; THERMAL CONDUCTION
AB We present Chandra and XMM-Newton observations of PLCK G036.7+14.9 from the Chandra-Planck Legacy Program. The high resolution X-ray observations reveal two close (similar to 72" - 193 kpc in projection) subclusters, G036N and G036S, which were not resolved by previous ROSAT, optical, or recent Planck observations. We perform detailed imaging and spectral analyses and use a simplified model to study the kinematics of this system. The basic picture is that PLCK G036.7+14.9 is undergoing a major merger (mass ratio close to unity) between the two massive subclusters, with the merger largely along the line of sight (similar to 80 degrees between the merger axis and the plane of the sky from the simplified model) and probably at an early stage (less than similar to 0.4-0.7 Gyr since the merger began). G036N hosts a small (similar to 27 kpc), moderate cool core (cooling time t(cool) similar to 2.6-4.7Gyr), while G036S has at most a very weak cool core (t(cool) similar to 5.7-10.3Gyr) in the central similar to 40 kpc region. The difference in core cooling times is unlikely to be caused by the ongoing merger disrupting a pre-existing cool core in G036S. G036N also hosts an unresolved radio source in the center, which may be heating the gas if the radio source is extended. The total mass of the whole cluster determined from XMM-Newton is similar to(5.9-8.0) x 10(14) M-circle dot, and is similar to(6.7-9.9) x 10(14) M-circle dot from Chandra. The Planck derived mass,similar to(5.1-6.0) x 10(14) M-circle dot, is higher than the X-ray measured mass of either subcluster, but is lower than the X-ray measured mass of the whole cluster, due to the fact that Planck does not resolve PLCK G036.7+14.9 into subclusters and interprets it as a single cluster. This mass discrepancy could induce significant bias to the mass function if such previously unresolved systems are common in the Planck cluster sample. High resolution X-ray observations are necessary to identify the fraction of such systems and correct such a bias for the purpose of precision cosmological studies.
C1 [Zhang, B.; Kong, X.] Univ Sci & Technol China, Ctr Astrophys, Hefei 230026, Anhui, Peoples R China.
[Zhang, B.; Kong, X.] Chinese Acad Sci, Key Lab Res Galaxies & Cosmol, Hefei 230026, Anhui, Peoples R China.
[Zhang, B.; David, L. P.; Jones, C.; Andrade-Santos, F.; O'Sullivan, E.; Nulsen, P. E. J.; Vrtilek, J. M.; van Weeren, R. J.; Kraft, R. P.] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA.
[Dahle, H.] Univ Oslo, Inst Theoret Astrophys, N-0315 Oslo, Norway.
[Clarke, T. E.] Naval Res Lab, Washington, DC 20375 USA.
[Pointecouteau, E.] Univ Toulouse, UPS OMP, IRAP, F-31028 Toulouse 4, France.
[Pointecouteau, E.] CNRS, IRAP, F-31028 Toulouse 4, France.
[Pratt, G. W.; Arnaud, M.] Univ Paris Diderot, CEA Saclay, CNRS, Lab AIM,IRFU,Serv Astrophys,CEA DSM, F-91191 Gif Sur Yvette, France.
[Ji, L.] Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China.
RP Zhang, B (reprint author), Univ Sci & Technol China, Ctr Astrophys, Hefei 230026, Anhui, Peoples R China.
EM zhb006@mail.ustc.edu.cn; xkong@ustc.edu.cn
OI O'Sullivan, Ewan/0000-0002-5671-6900; Nulsen, Paul/0000-0003-0297-4493;
van Weeren, Reinout/0000-0002-0587-1660
FU China Scholarship Council; NASA [GO2-13146X]; Chandra X-ray Center; 100
Talents program of the Chinese Academy of Sciences (CAS); Key Laboratory
of Dark Matter and Space Astronomy of CAS; National Natural Science
Foundation of China (NSFC) [11225315, 1320101002, 11433005, 11421303];
Strategic Priority Research Program "The Emergence of Cosmological
Structures" of the Chinese Academy of Sciences [XDB09000000];
Specialized Research Fund for the Doctoral Program of Higher Education
(SRFDP) [20123402110037]; Chinese National 973 Fundamental Science
Programs (973 program) [2015CB857004]; ESA Member States; NASA; National
Aeronautics Space Administration (NASA) [NAS8-03060]; SAO predoctoral
fellowship program
FX We thank Nabila Aghanim, Iacopo Bartalucci, James G. Bartlett, Hans
Bohringer, Stefano Borgani, Shea Brown, Gayoung Chon, Eugene Churazov,
Jessica Democles, Daniel Eisenstein, Chiara Ferrari, William Forman,
Simona Giacintucci, Charles Lawrence, Marceau Limousin, Giulia Macario,
Douspis Marian, Pasquale Mazzotta, Jean-Baptiste Melin, Stephen S.
Murray, Elena Pierpaoli, Rashid A. Sunyaev, and Alexey Vikhlinin for
reading an early version of the manuscript and Harald Ebeling for
communications on PLCK G036.7+14.9. We thank the referee for useful
comments and suggestions. The scientific results reported in this
article are based on observations made by the Chandra X-ray Observatory
(ObsID 15098), which is operated by the Smithsonian Astrophysical
Observatory (SAO) for and on behalf of the National Aeronautics Space
Administration (NASA) under contract NAS8-03060, and XMM-Newton (ObsID
0692931901), an ESA science mission with instruments and contributions
directly funded by ESA Member States and NASA. We also present results
based on observations made with the Nordic Optical Telescope, operated
by the Nordic Optical Telescope Scientific Association at the
Observatorio del Roque de los Muchachos, La Palma, Spain of the
Instituto de Astrofisica de Canarias. B.Z. acknowledges the SAO
predoctoral fellowship program and financial support from China
Scholarship Council. L.P.D. is supported in part by NASA grant
GO2-13146X. C.J. acknowledges support from the Chandra X-ray Center.
L.J. is supported by the 100 Talents program of the Chinese Academy of
Sciences (CAS) and the Key Laboratory of Dark Matter and Space Astronomy
of CAS. X.K. is supported by the National Natural Science Foundation of
China (NSFC, Nos. 11225315, 1320101002, 11433005, and 11421303), the
Strategic Priority Research Program "The Emergence of Cosmological
Structures" of the Chinese Academy of Sciences (No. XDB09000000), the
Specialized Research Fund for the Doctoral Program of Higher Education
(SRFDP, No. 20123402110037), and the Chinese National 973 Fundamental
Science Programs (973 program) (2015CB857004).
NR 92
TC 1
Z9 1
U1 1
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 MAY 10
PY 2015
VL 804
IS 2
AR 129
DI 10.1088/0004-637X/804/2/129
PG 21
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA CI6WR
UT WOS:000354905000051
ER
PT J
AU Justh, EW
Krishnaprasad, PS
AF Justh, Eric W.
Krishnaprasad, P. S.
TI Optimality, reduction and collective motion
SO PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING
SCIENCES
LA English
DT Article
DE collective behaviour; optimal control; maximum principle; symmetry
reduction; explicit integrability; Poisson structure
ID STEERING LAWS; BEHAVIOR; INFORMATION; SYSTEMS
AB The planar self-steering particle model of agents in a collective gives rise to dynamics on the N-fold direct product of SE(2), the rigid motion group in the plane. Assuming a connected, undirected graph of interaction between agents, we pose a family of symmetric optimal control problems with a coupling parameter capturing the strength of interactions. The Hamiltonian system associated with the necessary conditions for optimality is reducible to a Lie-Poisson dynamical system possessing interesting structure. In particular, the strong coupling limit reveals additional (hidden) symmetry, beyond the manifest one used in reduction: this enables explicit integration of the dynamics, and demonstrates the presence of a 'master clock' that governs all agents to steer identically. For finite coupling strength, we show that special solutions exist with steering controls proportional across the collective. These results suggest that optimality principles may provide a framework for understanding imitative behaviours observed in certain animal aggregations.
C1 [Justh, Eric W.] Naval Res Lab, Washington, DC 20375 USA.
[Krishnaprasad, P. S.] Univ Maryland, Inst Syst Res, College Pk, MD 20742 USA.
[Krishnaprasad, P. S.] Univ Maryland, Dept Elect & Comp Engn, College Pk, MD 20742 USA.
RP Krishnaprasad, PS (reprint author), Univ Maryland, Inst Syst Res, College Pk, MD 20742 USA.
EM krishna@umd.edu
FU Air Force Office of Scientific Research under AFOSR [FA9550-10-1-0250];
ARL/ARO MURI [W911NF-13-1-0390]; Office of Naval Research
FX The work of P.S.K. was supported in part by the Air Force Office of
Scientific Research under AFOSR grant no. FA9550-10-1-0250, and the
ARL/ARO MURI programme grant no. W911NF-13-1-0390. The work of EWJ was
supported by the Office of Naval Research.
NR 36
TC 2
Z9 2
U1 2
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 MAY 8
PY 2015
VL 471
IS 2177
AR 20140606
DI 10.1098/rspa.2014.0606
PG 22
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA CG5RT
UT WOS:000353352400001
PM 27547087
ER
PT J
AU Della Torre, E
Jamali, A
ElBidweihy, H
Bennett, LH
AF Della Torre, E.
Jamali, A.
ElBidweihy, H.
Bennett, L. H.
TI Vector properties of magnetostriction
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
AB The vector properties of a newly developed Preisach-type magnetostriction model are discussed. The model uses a modified version of the Della Torre-Pinzaglia-Cardelli model to compute the irreversible and the reversible components of the magnetization. The magnetostriction can then be simulated by assuming that its magnitude is proportional to the magnetization and its direction is dependent on the magnetization history. The modeling approach is outlined for two types of isotropic media: native and polycrystalline. The preliminary results show excellent agreement with the rotational magnetization measurements for a sample of high-strength steel. (C) 2015 AIP Publishing LLC.
C1 [Della Torre, E.; Jamali, A.; Bennett, L. H.] George Washington Univ, Elect & Comp Engn Dept, Washington, DC 20052 USA.
[ElBidweihy, H.] US Naval Acad, Elect & Comp Engn, Annapolis, MD 21401 USA.
RP ElBidweihy, H (reprint author), US Naval Acad, Elect & Comp Engn, Annapolis, MD 21401 USA.
EM elbidwei@usna.edu
OI Della Torre, Edward/0000-0002-4301-1434; Bennett,
Lawrence/0000-0003-4120-2322
NR 4
TC 1
Z9 1
U1 1
U2 6
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0021-8979
EI 1089-7550
J9 J APPL PHYS
JI J. Appl. Phys.
PD MAY 7
PY 2015
VL 117
IS 17
AR 17D141
DI 10.1063/1.4918336
PG 3
WC Physics, Applied
SC Physics
GA CI7YW
UT WOS:000354984100364
ER
PT J
AU Jones, NJ
Petculescu, G
Wun-Fogle, M
Restorff, JB
Clark, AE
Hathaway, KB
Schlagel, D
Lograsso, TA
AF Jones, Nicholas J.
Petculescu, Gabriela
Wun-Fogle, Marilyn
Restorff, J. B.
Clark, Arthur E.
Hathaway, Kristl B.
Schlagel, Deborah
Lograsso, Thomas A.
TI Rhombohedral magnetostriction in dilute iron (Co) alloys
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID CONSTANTS
AB Iron is a well-utilized material in structural and magnetic applications. This does not mean, however, that it is well understood, especially in the field of magnetostriction. In particular, the rhombohedral magnetostriction of iron, lambda(111), is anomalous in two respects: it is negative in sign, in disagreement with the prediction of first principles theory, and its magnitude decreases with increasing temperature much too rapidly to be explained by a power law dependence on magnetization. These behaviors could arise from the location of the Fermi level, which leaves a small region of the majority 3d t(2g) states unfilled, possibly favoring small internal displacements that split these states. If this view is correct, adding small amounts of Co to Fe fills some of these states, and the value of lambda(111) should increase toward a positive value, as predicted for perfect bcc Fe. We have measured the magnetostriction coefficients (lambda(111) and lambda(100)) of pure Fe, Fe97Co3, and Fe94Co6 single crystals from 77K to 450 K. Resonant ultrasound spectroscopy has been used to check for anomalies in the associated elastic constants, c(44) and c'. The additional electrons provided by the cobalt atoms indeed produced positive contributions to both magnetostriction constants, lambda(111) and lambda(100), exhibiting an increase of 2.8 x 10(-6) per at.% Co for lambda(111) and 3.8 x 10(-6) per at.% Co for lambda(100). (C) 2015 AIP Publishing LLC.
C1 [Jones, Nicholas J.; Wun-Fogle, Marilyn; Restorff, J. B.] Naval Surface Warfare Ctr, Carderock Div, Met & Fasteners Branch, Bethesda, MD 20817 USA.
[Petculescu, Gabriela] Univ Louisiana Lafayette, Dept Phys, Lafayette, LA 70504 USA.
[Clark, Arthur E.] Clark Associates, Adelphi, MD 20783 USA.
[Hathaway, Kristl B.] Spectrum Technol Grp Inc, Gaithersburg, MD 20877 USA.
[Schlagel, Deborah; Lograsso, Thomas A.] Ames Lab, Div Mat Sci & Engn, Ames, IA 50011 USA.
[Lograsso, Thomas A.] Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA.
RP Jones, NJ (reprint author), Naval Surface Warfare Ctr, Carderock Div, Met & Fasteners Branch, Bethesda, MD 20817 USA.
EM nicholas.j.jones1@navy.mil
OI Schlagel, Deborah/0000-0002-0799-7195
FU Office of Naval Research [321MS]; Carderock Division under the ONR
Summer Faculty Research Program; U.S. Department of Energy, Office of
Basic Science, Division of Materials Sciences and Engineering; U.S.
Department of Energy by Iowa State University [DE-AC02-07CH11358]
FX We would like to thank two Naval Research Enterprise Internship Program
(NREIP) interns, Kenneth Gordon and Sydney Jupitz, for their assistance
in taking data. Financial support from the Office of Naval Research,
Code 321MS, is gratefully acknowledged. The work by G.P. was funded in
part by the Carderock Division under the ONR Summer Faculty Research
Program, managed at NSWC Carderock by the Director of Research. The
research carried out at The Ames Laboratory was supported by the U.S.
Department of Energy, Office of Basic Science, Division of Materials
Sciences and Engineering. The Ames Laboratory is operated for the U.S.
Department of Energy by Iowa State University under Contract No.
DE-AC02-07CH11358.
NR 16
TC 1
Z9 1
U1 2
U2 12
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0021-8979
EI 1089-7550
J9 J APPL PHYS
JI J. Appl. Phys.
PD MAY 7
PY 2015
VL 117
IS 17
AR 17A913
DI 10.1063/1.4916541
PG 4
WC Physics, Applied
SC Physics
GA CI7YW
UT WOS:000354984100111
ER
PT J
AU Knipling, KE
Daniil, M
Willard, MA
AF Knipling, K. E.
Daniil, M.
Willard, M. A.
TI Nanocrystalline Fe88-2xCoxNixZr7B4Cu1 alloys: Soft magnets for vehicle
electrification technologies
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID ULTRAFINE GRAIN-STRUCTURE
AB We report on the effect of substituting Co and Ni for Fe on the crystallization behavior, crystal structure, and magnetic properties of Fe88-2xCoxNixZr7B4Cu1 (x = 0-22.00). The magnetization generally decreases and the coercivity increases with increasing x, whereas the Curie temperature of the amorphous phase increases significantly (from 73 degrees C at x = 0 to 570 degrees C at x = 22.00). There is thus an optimum composition near x = 5.50 exhibiting excellent soft magnetic properties at 300-500 degrees C. The higher magnetization and Curie temperature as compared with Fe-based alloys, and smaller Co content as compared with (Fe, Co)-based alloys, make this alloy attractive as an affordable high-temperature soft magnetic material. (C) 2015 AIP Publishing LLC.
C1 [Knipling, K. E.] US Naval Res Lab, Magnet Mat & Nanostruct Sect, Washington, DC 20375 USA.
[Daniil, M.; Willard, M. A.] Case Western Reserve Univ, Dept Mat Sci & Engn, Cleveland, OH 44106 USA.
RP Willard, MA (reprint author), Case Western Reserve Univ, Dept Mat Sci & Engn, Cleveland, OH 44106 USA.
EM maw169@case.edu
FU Office of Naval Research [N00014-08-WX-2-0628]
FX This work was supported by the Office of Naval Research under Contract
No. N00014-08-WX-2-0628.
NR 22
TC 3
Z9 3
U1 5
U2 21
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0021-8979
EI 1089-7550
J9 J APPL PHYS
JI J. Appl. Phys.
PD MAY 7
PY 2015
VL 117
IS 17
AR 172611
DI 10.1063/1.4914118
PG 5
WC Physics, Applied
SC Physics
GA CI7YW
UT WOS:000354984100552
ER
PT J
AU Lograsso, TA
Jones, NJ
Schlagel, DL
Petculescu, G
Wun-Fogle, M
Restorff, JB
Clark, AE
Hathaway, KB
AF Lograsso, Thomas A.
Jones, Nicholas J.
Schlagel, Deborah L.
Petculescu, Gabriela
Wun-Fogle, Marilyn
Restorff, James B.
Clark, Arthur E.
Hathaway, Kristl B.
TI Effects of Zn additions to highly magnetoelastic FeGa alloys
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID GA; MAGNETOSTRICTION
AB Fe1-xMx (M = Ga, Ge, Si, Al, Mo and x similar to 0.18) alloys offer an extraordinary combination of magnetoelasticity and mechanical properties. They are rare-earth-free, can be processed using conventional deformation techniques, have high magnetic permeability, low hysteresis, and low magnetic saturation fields, making them attractive for device applications such as actuators and energy harvesters. Starting with Fe-Ga as a reference and using a rigid-band-filling argument, Zhang et al. predicted that lowering the Fermi level by reducing the total number of electrons could enhance magnetoelasticity. To provide a direct experimental validation for Zhang's hypothesis, elemental additions with lower-than-Ga valence are needed. Of the possible candidates, only Be and Zn have sufficient solubility. Single crystals of bcc Fe-Ga-Zn have been grown with up to 4.6 at.% Zn in a Bridgman furnace under elevated pressure (15 bars) in order to overcome the high vapor pressure of Zn and obtain homogeneous crystals. Single-crystal measurements of magnetostriction and elastic constants allow for the direct comparison of the magnetoelastic coupling constants of Fe-Ga-Zn with those of other magnetoelastic alloys in its class. The partial substitution of Ga with Zn yields values for the magnetoelastic coupling factor, -b(1), comparable to those of the binary Fe-Ga alloy. (C) 2015 AIP Publishing LLC.
C1 [Lograsso, Thomas A.; Schlagel, Deborah L.] Ames Lab, Div Mat Sci & Engn, Ames, IA 50011 USA.
[Lograsso, Thomas A.] Iowa State Univ, Dept Mat Sci & Engn, Ames, IA 50011 USA.
[Jones, Nicholas J.; Wun-Fogle, Marilyn; Restorff, James B.] Naval Surface Warfare Ctr, Met & Fasteners Branch, Carderock Div, Bethesda, MD 20817 USA.
[Petculescu, Gabriela] Univ Louisiana Lafayette, Lafayette, LA 70504 USA.
[Clark, Arthur E.] Clark Associates, Adelphi, MD 20783 USA.
[Hathaway, Kristl B.] Spectrum Technol Grp Inc, Gaithersburg, MD 20877 USA.
RP Lograsso, TA (reprint author), Ames Lab, Div Mat Sci & Engn, Ames, IA 50011 USA.
EM lograsso@ameslab.gov
FU U.S. Department of Energy, Office of Basic Science, Division of
Materials Sciences and Engineering; U.S. Department of Energy
[DE-AC02-07CH11358]; Office of Naval Research [321MS]; Carderock
Division under the ONR Summer Faculty Research Program
FX We would like to thank the two Naval Research Enterprise Internship
Program interns, Kenneth Gordon and Sydney Jupitz, for their assistance
in taking data. The research carried out at The Ames Laboratory was
supported by the U.S. Department of Energy, Office of Basic Science,
Division of Materials Sciences and Engineering. The Ames Laboratory is
operated for the U.S. Department of Energy by Iowa State University
under Contract No. DE-AC02-07CH11358. Financial support from the Office
of Naval Research, Code 321MS is gratefully acknowledged. G.P.'s work
was funded in part by the Carderock Division under the ONR Summer
Faculty Research Program, managed at NSWC Carderock by the Director of
Research.
NR 12
TC 1
Z9 1
U1 5
U2 41
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0021-8979
EI 1089-7550
J9 J APPL PHYS
JI J. Appl. Phys.
PD MAY 7
PY 2015
VL 117
IS 17
AR 17E701
DI 10.1063/1.4907181
PG 4
WC Physics, Applied
SC Physics
GA CI7YW
UT WOS:000354984100525
ER
PT J
AU Jones, BT
Gyory, J
Grey, EK
Bartlein, M
Ko, DS
Nero, RW
Taylor, CM
AF Jones, Benjamin T.
Gyory, Joanna
Grey, Erin K.
Bartlein, Michael
Ko, Dong S.
Nero, Redwood W.
Taylor, Caz M.
TI Transport of blue crab larvae in the northern Gulf of Mexico during the
Deepwater Horizon oil spill
SO MARINE ECOLOGY PROGRESS SERIES
LA English
DT Article
DE Lagrangian particle tracking; Graph-theoretic metric; Shannon index;
Vertex degree; Betweenness centrality; Potential connectivity
ID MARINE POPULATION CONNECTIVITY; CALLINECTES-SAPIDUS; GENE FLOW;
METAPOPULATION DYNAMICS; CHESAPEAKE BAY; CLIMATE-CHANGE; DISPERSAL;
MODEL; BIGHT; CONSERVATION
AB To better understand population connectivity of the blue crab Callinectes sapidus and how it may have been affected by the Deepwater Horizon oil spill, we simulated larval dispersal with a biophysical model of the coastal waters from western Louisiana to the Florida panhandle. We investigated connectivity patterns, intra-annual variability, and potential impacts of the Deepwater Horizon oil spill during the spring and summer of 2010. Overall, we found that the Mississippi River delta (MRD) is a barrier to dispersal, and that local retention was high; of the 7.7% of larvae that successfully settled, 37.5% returned to their natal estuary and 28.5% to an adjacent one. We used network metrics to assess the overall diversity of population connectivity and the importance of individual estuaries to maintaining connectivity. The proportion of larvae that successfully settle does not significantly change during the spawning season, but connectivity among estuaries significantly declines. Estuaries near the MRD were most important for maintaining connectivity, likely because they were the primary source of the few larvae that crossed the MRD. These patterns influence the distribution of settlement locations for larvae that were potentially exposed to oil. A total of 38.1% of the simulated larvae were potentially exposed to oil, and these larvae were concentrated on the eastern side of the MRD. For some spawning events, up to 96.3% of the larvae that successfully settled east of the MRD were potentially exposed to oil, which may have substantial implications for population dynamics. These results provide quantitative predictions regarding blue crab connectivity in the northern Gulf of Mexico that can be corroborated with data. The predictions can be applied for disaster management planning and for management of this environmentally and economically important species.
C1 [Jones, Benjamin T.] Woods Hole Oceanog Inst, Dept Biol, Woods Hole, MA 02543 USA.
[Gyory, Joanna; Taylor, Caz M.] Tulane Univ, Dept Ecol & Evolutionary Biol, New Orleans, LA 70118 USA.
[Grey, Erin K.] Governors State Univ, University Pk, IL 60484 USA.
[Bartlein, Michael] Cornell Univ, Cornell High Energy Synchrotron Source, Ithaca, NY 14853 USA.
[Ko, Dong S.] Naval Res Lab, Div Oceanog, Stennis Space Ctr, MS 39529 USA.
[Nero, Redwood W.] NOAA Fisheries, SW Fisheries Sci Ctr, Stennis Space Ctr, MS 39529 USA.
RP Jones, BT (reprint author), Woods Hole Oceanog Inst, Dept Biol, Woods Hole, MA 02543 USA.
EM btjones@mit.edu
OI Grey, Erin/0000-0001-5883-0013
FU National Science Foundation RAPID award [OCE-1042792]; BP/The Gulf of
Mexico Research Initiative
FX This work was funded in part by a National Science Foundation RAPID
award (PI C. Taylor, OCE-1042792) and in part by a grant from BP/The
Gulf of Mexico Research Initiative (PIs J. Neigel and C. Taylor).
NR 81
TC 5
Z9 5
U1 3
U2 30
PU INTER-RESEARCH
PI OLDENDORF LUHE
PA NORDBUNTE 23, D-21385 OLDENDORF LUHE, GERMANY
SN 0171-8630
EI 1616-1599
J9 MAR ECOL PROG SER
JI Mar. Ecol.-Prog. Ser.
PD MAY 7
PY 2015
VL 527
BP 143
EP 156
DI 10.3354/meps11238
PG 14
WC Ecology; Marine & Freshwater Biology; Oceanography
SC Environmental Sciences & Ecology; Marine & Freshwater Biology;
Oceanography
GA CH9ZQ
UT WOS:000354395700011
ER
PT J
AU Alford, MH
Peacock, T
MacKinnon, JA
Nash, JD
Buijsman, MC
Centuroni, LR
Chao, SY
Chang, MH
Farmer, DM
Fringer, OB
Fu, KH
Gallacher, PC
Graber, HC
Helfrich, KR
Jachec, SM
Jackson, CR
Klymak, JM
Ko, DS
Jan, S
Johnston, TMS
Legg, S
Lee, IH
Lien, RC
Mercier, MJ
Moum, JN
Musgrave, R
Park, JH
Pickering, AI
Pinkel, R
Rainville, L
Ramp, SR
Rudnick, DL
Sarkar, S
Scotti, A
Simmons, HL
St Laurent, LC
Venayagamoorthy, SK
Wang, YH
Wang, J
Yang, YJ
Paluszkiewicz, T
Tang, TY
AF Alford, Matthew H.
Peacock, Thomas
MacKinnon, Jennifer A.
Nash, Jonathan D.
Buijsman, Maarten C.
Centuroni, Luca R.
Chao, Shenn-Yu
Chang, Ming-Huei
Farmer, David M.
Fringer, Oliver B.
Fu, Ke-Hsien
Gallacher, Patrick C.
Graber, Hans C.
Helfrich, Karl R.
Jachec, Steven M.
Jackson, Christopher R.
Klymak, Jody M.
Ko, Dong S.
Jan, Sen
Johnston, T. M. Shaun
Legg, Sonya
Lee, I-Huan
Lien, Ren-Chieh
Mercier, Matthieu J.
Moum, James N.
Musgrave, Ruth
Park, Jae-Hun
Pickering, Andrew I.
Pinkel, Robert
Rainville, Luc
Ramp, Steven R.
Rudnick, Daniel L.
Sarkar, Sutanu
Scotti, Alberto
Simmons, Harper L.
St Laurent, Louis C.
Venayagamoorthy, Subhas K.
Wang, Yu-Huai
Wang, Joe
Yang, Yiing J.
Paluszkiewicz, Theresa
Tang, Tswen-Yung (David)
TI The formation and fate of internal waves in the South China Sea
SO NATURE
LA English
DT Article
ID LUZON STRAIT; SOLITARY WAVES; BAROCLINIC TIDES; HAWAIIAN RIDGE; LEE
WAVES; OCEAN; PROPAGATION; MODEL; CIRCULATION; GENERATION
AB Internal gravity waves, the subsurface analogue of the familiar surface gravity waves that break on beaches, are ubiquitous in the ocean. Because of their strong vertical and horizontal currents, and the turbulent mixing caused by their breaking, they affect a panoply of ocean processes, such as the supply of nutrients for photosynthesis(1), sediment and pollutant transport(2) and acoustic transmission(3); they also pose hazards for man-made structures in the ocean(4). Generated primarily by the wind and the tides, internal waves can travel thousands of kilometres from their sources before breaking(5), making it challenging to observe them and to include them in numerical climate models, which are sensitive to their effects(6,7). For over a decade, studies(8-11) have targeted the South China Sea, where the oceans' most powerful known internal waves are generated in the Luzon Strait and steepen dramatically as they propagate west. Confusion has persisted regarding their mechanism of generation, variability and energy budget, however, owing to the lack of in situ data from the Luzon Strait, where extreme flow conditions make measurements difficult. Here we use new observations and numerical models to (1) show that the waves begin as sinusoidal disturbances rather than arising from sharp hydraulic phenomena, (2) reveal the existence of >200-metre-high breaking internal waves in the region of generation that give rise to turbulence levels >10,000 times that in the open ocean, (3) determine that the Kuroshio western boundary current noticeably refracts the internal wave field emanating from the Luzon Strait, and (4) demonstrate a factor-of-two agreement between modelled and observed energy fluxes, which allows us to produce an observationally supported energy budget of the region. Together, these findings give a cradle-to-grave picture of internal waves on a basin scale, which will support further improvements of their representation in numerical climate predictions.
C1 [Alford, Matthew H.; MacKinnon, Jennifer A.; Centuroni, Luca R.; Johnston, T. M. Shaun; Musgrave, Ruth; Pinkel, Robert; Rudnick, Daniel L.] Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92037 USA.
[Alford, Matthew H.; Lien, Ren-Chieh; Pickering, Andrew I.; Rainville, Luc] Univ Washington, Seattle, WA 98105 USA.
[Peacock, Thomas; Pickering, Andrew I.] MIT, Cambridge, MA 02139 USA.
[Nash, Jonathan D.; Moum, James N.] Oregon State Univ, Corvallis, OR 97370 USA.
[Buijsman, Maarten C.] Univ So Mississippi, Stennis Space Ctr, MS 39529 USA.
[Chao, Shenn-Yu] Univ Maryland, Cambridge, MD 21613 USA.
[Chang, Ming-Huei; Jan, Sen; Wang, Joe; Yang, Yiing J.; Tang, Tswen-Yung (David)] Natl Taiwan Univ, Inst Oceanog, Taipei 10617, Taiwan.
[Farmer, David M.] Univ Rhode Isl, Narragansett, RI 02882 USA.
[Fringer, Oliver B.] Stanford Univ, Stanford, CA 94305 USA.
[Fu, Ke-Hsien; Lee, I-Huan; Wang, Yu-Huai] Natl Sun Yat Sen Univ, Kaohsiung 80424, Taiwan.
[Gallacher, Patrick C.; Ko, Dong S.] NRL, Stennis Space Ctr, MS 39529 USA.
[Graber, Hans C.] Univ Miami, Miami, FL 33149 USA.
[Helfrich, Karl R.; St Laurent, Louis C.] Woods Hole Oceanog Inst, Falmouth, MA 02543 USA.
[Jachec, Steven M.] Florida Inst Technol, Melbourne, FL 32901 USA.
[Jackson, Christopher R.] Global Ocean Associates, Alexandria, VA 22310 USA.
[Klymak, Jody M.] Univ Victoria, Victoria, BC V8W 3P6, Canada.
[Legg, Sonya] Princeton Univ, Princeton, NJ 08542 USA.
[Mercier, Matthieu J.] Inst Mecan Fluides Toulouse, F-31400 Toulouse, France.
[Park, Jae-Hun] Korea Inst Ocean Sci & Technol, Ansan 426744, South Korea.
[Ramp, Steven R.] Soliton Ocean Serv, Carmel, CA 93924 USA.
[Sarkar, Sutanu] Univ Calif San Diego, La Jolla, CA 92037 USA.
[Scotti, Alberto] Univ N Carolina, Chapel Hill, NC 27599 USA.
[Simmons, Harper L.] Univ Alaska Fairbanks, Fairbanks, AK 99775 USA.
[Venayagamoorthy, Subhas K.] Colorado State Univ, Ft Collins, CO 80523 USA.
[Paluszkiewicz, Theresa] Off Naval Res, Arlington, VA 22217 USA.
RP Alford, MH (reprint author), Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92037 USA.
EM malford@ucsd.edu
RI Mercier, Matthieu/H-4278-2012; Legg, Sonya/E-5995-2010; Klymak,
Jody/A-3041-2008; Rudnick, Daniel/J-8948-2016;
OI Mercier, Matthieu/0000-0001-9965-3316; Klymak, Jody/0000-0003-4612-8600;
Rudnick, Daniel/0000-0002-2624-7074; Wang, Joe/0000-0002-3298-2956;
Park, Jae-Hun/0000-0003-0442-695X; Yang, Yiing-Jang/0000-0002-6637-9311;
CHANG, MING-HUEI/0000-0002-6409-7652; Jan, Sen/0000-0002-4128-9715
FU US Office of Naval Research; Taiwan National Science Council
FX This article is dedicated to the memory of author T.-Y. Tang. Our work
was supported by the US Office of Naval Research and the Taiwan National
Science Council. We are indebted to the captains and crew of all of the
research vessels that supported this work, as well as to the technical
staff of the seagoing institutions. Without the skill and hard work of
all of these people, these observations would not have been possible.
NR 58
TC 42
Z9 43
U1 13
U2 107
PU NATURE PUBLISHING GROUP
PI LONDON
PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
SN 0028-0836
EI 1476-4687
J9 NATURE
JI Nature
PD MAY 7
PY 2015
VL 521
IS 7550
BP 65
EP U381
DI 10.1038/nature14399
PG 9
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA CH4YS
UT WOS:000354040900033
PM 25951285
ER
PT J
AU Rees, JM
Paul, ES
Simpson, J
Riley, MA
Ayangeakaa, AD
Carpenter, MP
Chiara, CJ
Garg, U
Hampson, P
Hartley, DJ
Hoffman, CR
Janssens, RVF
Kondev, FG
Lauritsen, T
Mason, PJR
Matta, J
Miller, SL
Nolan, PJ
Ollier, J
Petri, M
Radford, DC
Revill, JP
Wang, X
Zhu, S
Gellanki, J
Ragnarsson, I
AF Rees, J. M.
Paul, E. S.
Simpson, J.
Riley, M. A.
Ayangeakaa, A. D.
Carpenter, M. P.
Chiara, C. J.
Garg, U.
Hampson, P.
Hartley, D. J.
Hoffman, C. R.
Janssens, R. V. F.
Kondev, F. G.
Lauritsen, T.
Mason, P. J. R.
Matta, J.
Miller, S. L.
Nolan, P. J.
Ollier, J.
Petri, M.
Radford, D. C.
Revill, J. P.
Wang, X.
Zhu, S.
Gellanki, J.
Ragnarsson, I.
TI High-spin terminating states in the N=88 Ho-155 and Er-156 isotones
SO PHYSICAL REVIEW C
LA English
DT Article
ID BAND TERMINATION; ROTATIONAL BANDS; NUCLEI; SIGNATURE; MOMENTS;
SPECTROSCOPY; EXCITATIONS; ENERGIES; YB-158; M1
AB The Sn-124(Cl-37, 6n gamma) fusion-evaporation reaction at a bombarding energy of 180 MeV has been used to significantly extend the excitation level scheme of Ho-155(67)88. The collective rotational behavior of this nucleus breaks down above spin I similar to 30 and a fully aligned noncollective (band terminating) state has been identified at I-pi = 79/2(-). Comparison with cranked Nilsson-Strutinsky calculations also provides evidence for core-excited noncollective states at I-pi = 87/2(-) and (89/2(+)) involving particle-hole excitations across the Z = 64 shell gap. A similar core-excited state in Er-156(68)88 at I-pi = (46(+)) is also presented.
C1 [Rees, J. M.; Paul, E. S.; Hampson, P.; Nolan, P. J.; Revill, J. P.] Univ Liverpool, Oliver Lodge Lab, Liverpool L69 7ZE, Merseyside, England.
[Simpson, J.; Mason, P. J. R.; Ollier, J.] STFC Daresbury Lab, Warrington WA4 4AD, Cheshire, England.
[Riley, M. A.; Miller, S. L.; Wang, X.] 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.
[Carpenter, M. P.; Chiara, C. J.; Hoffman, C. R.; Janssens, R. V. F.; Lauritsen, T.; Zhu, S.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
[Chiara, C. J.] Univ Maryland, Dept Chem & Biochem, College Pk, MD 20742 USA.
[Hartley, D. J.] US Naval Acad, Dept Phys, Annapolis, MD 21402 USA.
[Kondev, F. G.] Argonne Natl Lab, Nucl Engn Div, Argonne, IL 60439 USA.
[Petri, M.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Nucl Sci, Berkeley, CA 94720 USA.
[Radford, D. C.] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
[Gellanki, J.; Ragnarsson, I.] Lund Univ, LTH, Div Math Phys, S-22100 Lund, Sweden.
RP Rees, JM (reprint author), Univ Liverpool, Oliver Lodge Lab, Liverpool L69 7ZE, Merseyside, England.
EM esp@ns.ph.liv.ac.uk
RI Ayangeakaa, Akaa/F-3683-2015; Carpenter, Michael/E-4287-2015; Hoffman,
Calem/H-4325-2016; Petri, Marina/H-4630-2016
OI Ayangeakaa, Akaa/0000-0003-1679-3175; Carpenter,
Michael/0000-0002-3237-5734; Hoffman, Calem/0000-0001-7141-9827; Petri,
Marina/0000-0002-3740-6106
FU United Kingdom Science and Technology Facilities Council
[DE-FG02-94ER40834, DE-FG02-96ER40983, DE-AC02-06CH11357,
DE-AC02-05CH11231]; National Science Foundation [PHY-756474,
PHY-1203100, PHY-0754674]; Swedish Research Council; State of Florida
FX This material is based upon work supported by the United Kingdom Science
and Technology Facilities Council in addition to the U.S. Department of
Energy, Office of Science, Office of Nuclear Physics, under Awards No.
DE-FG02-94ER40834 (UMD) and No. DE-FG02-96ER40983 (UTK), and under
Contracts No. DE-AC02-06CH11357 (ANL) and No. DE-AC02-05CH11231 (LBL),
and by the National Science Foundation under Contracts No. PHY-756474
(FSU), No. PHY-1203100 (USNA), and No. PHY-0754674 (UND). This research
used resources of ANL's ATLAS facility, which is a DOE Office of Science
User Facility. Support was also provided by the Swedish Research Council
and the State of Florida. The authors acknowledge the ATLAS operations
staff for the beam support and John Greene (ATLAS) and Paul Morrall
(STFC Daresbury) for preparing the targets.
NR 49
TC 1
Z9 1
U1 0
U2 8
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 MAY 5
PY 2015
VL 91
IS 5
AR 054301
DI 10.1103/PhysRevC.91.054301
PG 17
WC Physics, Nuclear
SC Physics
GA CH2UP
UT WOS:000353880500001
ER
PT J
AU Bruneau, T
AF Bruneau, Thomas
TI Challenges in building partner capacity: Civil-military relations in the
United States and new democracies
SO SMALL WARS AND INSURGENCIES
LA English
DT Article
DE Iraq; Clausewitz; ROTC program; civil-military relations; partner
capacity; private security contractors; Afghanistan
ID LATIN-AMERICA
AB The main emphasis in US security assistance is 'building partner capacity'. To understand prospects for building capacity implies knowledge of the security sector, including the armed forces and also national police and intelligence agencies. The scholarly sub-discipline that should be useful for analysis of a nation's use of armed forces is civil-military relations as it ostensibly directs attention to when and how civilians choose to utilize their nation's armed forces. The goal in this article is to further refine the field of civil-military relations by focusing attention on two main concepts - democratic civilian control and strategy - and discussing their relevance in the context of building partner capacity.
C1 Naval Postgrad Sch, Dept Natl Secur Affairs, Monterey, CA 93943 USA.
RP Bruneau, T (reprint author), Naval Postgrad Sch, Dept Natl Secur Affairs, Monterey, CA 93943 USA.
EM tbruneau@nps.edu
NR 46
TC 0
Z9 0
U1 3
U2 5
PU ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXFORDSHIRE, ENGLAND
SN 0959-2318
EI 1743-9558
J9 SMALL WAR INSUR
JI Small War Insur.
PD MAY 4
PY 2015
VL 26
IS 3
BP 429
EP 445
DI 10.1080/09592318.2014.982880
PG 17
WC International Relations
SC International Relations
GA CI1CN
UT WOS:000354478500005
ER
PT J
AU Zeng, ZQ
Podpirka, A
Kirchoefer, SW
Asel, TJ
Brillson, LJ
AF Zeng, Z. Q.
Podpirka, A.
Kirchoefer, S. W.
Asel, T. J.
Brillson, L. J.
TI Direct correlation and strong reduction of native point defects and
microwave dielectric loss in air-annealed (Ba, Sr)TiO3
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID THIN-FILMS; PHASE SHIFTERS; SRTIO3; MGO; SPECTROSCOPY; LUMINESCENCE;
GROWTH
AB We report on the native defect and microwave properties of 1 mu m thick Ba0.50Sr0.50TiO3 (BST) films grown on MgO (100) substrates by molecular beam epitaxy (MBE). Depth-resolved cathodo-luminescence spectroscopy (DRCLS) showed high densities of native point defects in as-deposited BST films, causing strong subgap emission between 2.0 eV and 3.0 eV due to mixed cation V-C and oxygen Vo vacancies. Post growth air anneals reduce these defects with 2.2, 2.65, and 3.0 eV V-o and 2.4 eV V-C intensities decreasing with increasing anneal temperature and by nearly two orders of magnitude after 950 degrees C annealing. These low-defect annealed BST films exhibited high quality microwave properties, including room temperature interdigitated capacitor tunability of 13% under an electric bias of 40V and tan delta of 0.002 at 10 GHz and 40V bias. The results provide a feasible route to grow high quality BST films by MBE through post-air annealing guided by DRCLS. (C) 2015 AIP Publishing LLC.
C1 [Zeng, Z. Q.; Brillson, L. J.] Ohio State Univ, Dept Elect & Comp Engn, Columbus, OH 43210 USA.
[Podpirka, A.; Kirchoefer, S. W.] Naval Res Lab, Washington, DC 20375 USA.
[Asel, T. J.; Brillson, L. J.] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA.
[Asel, T. J.; Brillson, L. J.] Ohio State Univ, Ctr Mat Res, Columbus, OH 43210 USA.
RP Brillson, LJ (reprint author), Ohio State Univ, Dept Elect & Comp Engn, Columbus, OH 43210 USA.
EM brillson.1@osu.edu
OI Brillson, Leonard/0000-0003-3527-9761
FU NSF MRSEC [DMR-1420451]; NSF [DMR-1305193]
FX This work supported by NSF MRSEC Grant No. DMR-1420451 (Charles Ying)
and NSF Grant No. DMR-1305193 (Charles Ying and Haiyan Wang). A.
Podpirka acknowledges support as an NRC postdoctoral fellow at the Naval
Research Laboratory.
NR 38
TC 2
Z9 2
U1 8
U2 39
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 MAY 4
PY 2015
VL 106
IS 18
AR 182903
DI 10.1063/1.4919891
PG 5
WC Physics, Applied
SC Physics
GA CH8AW
UT WOS:000354259200034
ER
PT J
AU Martin, R
Vick, M
Enneti, RK
Atre, SV
AF Martin, Renee
Vick, Michael
Enneti, Ravi K.
Atre, Sundar V.
TI Sintering Characteristics of a Powder Injection Molded Ceria-Stabilized
Zirconia-Mullite Composite
SO MATERIALS AND MANUFACTURING PROCESSES
LA English
DT Article
DE Mullite; Powder injection molding; Miniature gas turbine; Ceramic;
Sintering
ID MECHANICAL-PROPERTIES; TOUGHENED MULLITE; MICROSTRUCTURE; ALUMINA;
ENGINE; ZRO2
AB Powder injection molding (PIM) technology has the potential for economically manufacturing several complex-shaped zirconia-mullite components in mass production. The sintering behavior of a zirconia-mullite composite fabricated by injection molding was analyzed in this paper. The focus of this study is to assess the dependence on properties and microstructure on PIM processing conditions. The sintered density of the samples displayed a strong dependence on sintering temperature. The hardness of the samples followed a similar trend as sintered density. A maximum fracture toughness of 4.1 +/- 0.3MPa center dot m(1/2) and strength around 450 +/- 60MPa was observed for samples sintered at 1500 degrees C for 4h. The properties from this study are significantly higher than the values reported in majority of the prior studies where other technologies like uniaxial and cold isostatic pressing were used to fabricate zirconia-mullite composites. The above results support the suitability of PIM as a manufacturing process for complex-shaped zirconia-mullite components with good mechanical properties.
C1 [Martin, Renee; Atre, Sundar V.] Oregon State Univ, Corvallis, OR 97330 USA.
[Vick, Michael] Naval Res Lab, Washington, DC 20375 USA.
[Enneti, Ravi K.] Global Tungsten & Powders Corp, Towanda, PA USA.
RP Atre, SV (reprint author), Oregon State Univ, 307 Dearborn Hall, Corvallis, OR 97330 USA.
EM sundar.atre@oregonstate.edu
NR 27
TC 0
Z9 0
U1 3
U2 14
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 530 WALNUT STREET, STE 850, PHILADELPHIA, PA 19106 USA
SN 1042-6914
EI 1532-2475
J9 MATER MANUF PROCESS
JI Mater. Manuf. Process.
PD MAY 4
PY 2015
VL 30
IS 5
BP 616
EP 623
DI 10.1080/10426914.2014.941871
PG 8
WC Engineering, Manufacturing; Materials Science, Multidisciplinary
SC Engineering; Materials Science
GA CF9WB
UT WOS:000352916800008
ER
PT J
AU Gustafsson, J
Protas, B
AF Gustafsson, Jonathan
Protas, Bartosz
TI Computation of steady incompressible flows in unbounded domains
SO COMPUTERS & FLUIDS
LA English
DT Article
DE Steady Navier-Stokes system; Unbounded domains; Wake flows; Spectral
methods
ID ADAPTIVE BOUNDARY-CONDITIONS; NAVIER-STOKES EQUATIONS; LARGE
REYNOLDS-NUMBERS; CIRCULAR-CYLINDER; VISCOUS-FLOW; NUMERICAL-SOLUTION; 2
DIMENSIONS; FOURIER METHOD; STABILITY
AB In this study we revisit the problem of computing steady Navier-Stokes flows in two-dimensional unbounded domains. Precise quantitative characterization of such flows in the high-Reynolds number limit remains an open problem of theoretical fluid dynamics. Following a review of key mathematical properties of such solutions related to the slow decay of the velocity field at large distances from the obstacle, we develop and carefully validate a spectrally-accurate computational approach which ensures the correct behavior of the solution at infinity. In the proposed method the numerical solution is defined on the entire unbounded domain without the need to truncate this domain to a finite box with some artificial boundary conditions prescribed at its boundaries. Since our approach relies on the streamfunction vorticity formulation, the main complication is the presence of a discontinuity in the streamfunction field at infinity which is related to the slow decay of this field. We demonstrate how this difficulty can be overcome by reformulating the problem using a suitable background "skeleton" field expressed in terms of the corresponding Oseen flow combined with spectral filtering. The method is thoroughly validated for Reynolds numbers spanning two orders of magnitude with the results comparing favorably against known theoretical predictions and the data available in the literature. (C) 2015 Elsevier Ltd. All rights reserved.
C1 [Gustafsson, Jonathan] Naval Postgrad Sch, Ctr Decis Risk Controls & Signals Intelligence, Monterey, CA 93943 USA.
[Gustafsson, Jonathan] McMaster Univ, Sch Computat Sci & Engn, Hamilton, ON L8S 4K1, Canada.
[Protas, Bartosz] McMaster Univ, Dept Math & Stat, Hamilton, ON L8S 4K1, Canada.
RP Protas, B (reprint author), McMaster Univ, Dept Math & Stat, Hamilton, ON L8S 4K1, Canada.
EM cjgustaf@nps.edu; bprotas@mcmaster.ca
FU SHARCNET; Natural Sciences and Engineering Research Council of Canada
(NSERC)
FX The authors acknowledge the financial support from SHARCNET through a
graduate scholarship and from the Natural Sciences and Engineering
Research Council of Canada (NSERC) in the form of a Discovery Grant.
Calculations were performed using the high-performance computing
facilities provided by SHARCNET.
NR 55
TC 0
Z9 0
U1 1
U2 10
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 MAY 2
PY 2015
VL 112
BP 94
EP 107
DI 10.1016/j.compfluid.2015.01.013
PG 14
WC Computer Science, Interdisciplinary Applications; Mechanics
SC Computer Science; Mechanics
GA CE9PT
UT WOS:000352176600009
ER
PT J
AU Pyke, J
Schladt, D
Kim, W
Leppke, S
Lake, J
Gentry, S
Segev, D
Israni, A
Snyder, J
AF Pyke, J.
Schladt, D.
Kim, W.
Leppke, S.
Lake, J.
Gentry, S.
Segev, D.
Israni, A.
Snyder, J.
TI Historical Comparison of Projected and Observed Liver Transplants
SO AMERICAN JOURNAL OF TRANSPLANTATION
LA English
DT Meeting Abstract
CT American Transplant Congress
CY MAY 02-06, 2015
CL Philadelphia, PA
C1 [Pyke, J.; Schladt, D.; Leppke, S.; Israni, A.; Snyder, J.] Minneapolis Med Res Fdn Inc, SRTR, Minneapolis, MN USA.
[Gentry, S.; Segev, D.] Johns Hopkins Univ, Sch Med, Surg, Baltimore, MD USA.
[Gentry, S.] US Naval Acad, Math, Baltimore, MD USA.
[Lake, J.] Univ Minnesota, Sch Med, Med & Surg, Minneapolis, MN 55455 USA.
[Kim, W.] Stanford Univ, Sch Med, Stanford, CA 94305 USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1600-6135
EI 1600-6143
J9 AM J TRANSPLANT
JI Am. J. Transplant.
PD MAY
PY 2015
VL 15
SU 3
SI SI
MA 37
PG 1
WC Surgery; Transplantation
SC Surgery; Transplantation
GA DD7SK
UT WOS:000370124201570
ER
PT J
AU Littman, AJ
Jacobson, IG
Boyko, EJ
Smith, TC
AF Littman, Alyson J.
Jacobson, Isabel G.
Boyko, Edward J.
Smith, Tyler C.
TI Changes in Meeting Physical Activity Guidelines After Discharge From the
Military
SO JOURNAL OF PHYSICAL ACTIVITY & HEALTH
LA English
DT Article
DE exercise; military personnel; Veterans
ID MILLENNIUM COHORT; RELIABILITY; VETERANS; VALIDITY; SERVICE; HEALTH;
VACCINATION; BEHAVIORS; PERSONNEL; TRENDS
AB Background: Understanding physical activity (PA) after discharge from the military can inform theory on the role of habit and reinforcement in behavior maintenance and has implications for this population's future health. Methods: Using data from 28,866 Millennium Cohort Study participants (n = 3782 of whom were discharged during the years between assessments), we 1) investigated changes in meeting federal PA guidelines for moderate-to-vigorous activity (MVPA) following military discharge and 2) determined predictors of meeting these guidelines after discharge. Results: MVPA declined more in those who were discharged than in those who were not (-17.8 percentage points vs. 2.7 percentage points), with greater declines in former active-duty personnel, those who had deployed with combat exposures, had 14 to 25 years of service, and had been discharged more recently (>2 years prior). In those who were discharged, being normal or overweight (vs. obese), and a nonsmoker or former smoker (vs. current smoker) were positively associated with meeting MVPA Guidelines at follow-up, while meeting MVPA Guidelines at baseline and depression were inversely associated. Conclusions: Reductions in MVPA were substantial and unexpected. Increased understanding of transitional periods that may benefit from interventions to mitigate declines in PA will help prevent excess weight gain and physical inactivity-associated health consequences.
C1 [Littman, Alyson J.; Boyko, Edward J.] VA Puget Sound Hlth Care Syst, Seattle Epidemiol Res & Informat Ctr, Seattle, WA 98108 USA.
[Jacobson, Isabel G.] Naval Hlth Res Ctr, Deployment Hlth Res Dept, San Diego, CA USA.
[Smith, Tyler C.] Natl Univ, Dept Community Hlth, Sch Hlth & Human Serv, San Diego, CA USA.
RP Littman, AJ (reprint author), VA Puget Sound Hlth Care Syst, Seattle Epidemiol Res & Informat Ctr, Seattle, WA 98108 USA.
EM Alyson.littman@va.gov
FU Henry M. Jackson Foundation for the Advancement of Military Medicine,
Rockville, MD; VA Rehabilitation Research and Development Career
Development Award [6982]
FX We are indebted to the Millennium Cohort Study participants, without
whom these analyses would not be possible, the other the Millennium
Cohort Study Team members, includes Melissa Bagnell, MPH; James Davies;
Raechel Del Rosario, MPH; Gia Gumbs, MPH; Nisara Granado, MPH, PhD;
Jaime Horton, MPH; Andrea Ippolito; Lauren Kipp, MPH; Kelly Jones, MPH;
Cynthia LeardMann, MPH; William Lee; Michelle Linfesty; Gordon Lynch;
Hope McMaster, PhD; Sheila Medina-Torne, MPH; Teresa Powell, MS; Toni
Rush, MPH; Emma Schaller; Amber Seelig, MPH; Beverly Sheppard; Donald
Slymen, PhD; Katherine Snell; Steven Speigle; Karl Sausedo, MA; Jennifer
Walstrom; John Wesner; Martin White, MPH; James Whitmer; and Charlene
Wong, MPH; from the Deployment Health Research Department, Naval Health
Research Center, San Diego, CA. We thank Scott L. Seggerman and Greg D.
Boyd from the Management Information Division, Defense Manpower Data
Center, Monterey, CA. In addition, we thank Michelle LeWark from the
Naval Health Research Center. We also thank all the professionals from
the US Army Medical Research and Materiel Command, especially those from
the Military Operational Medicine Research Program, Fort Detrick, MD, We
appreciate the support of the Henry M. Jackson Foundation for the
Advancement of Military Medicine, Rockville, MD. This material is the
result of work partly supported with resources and the use of facilities
from the Cooperative Studies Program, Department of Veterans Affairs,
and the Puget Sound VA Medical Center. Dr. Littman was supported by a VA
Rehabilitation Research and Development Career Development Award
(#6982). This work represents report 12-XX, 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 or constitute endorsement of the Department of the Navy,
Department of the Army, Department of the Air Force, Department of
Defense, Department of Veterans Affairs, the US Government, or the
American College of Sports Medicine. 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 23
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U1 0
U2 0
PU HUMAN KINETICS PUBL INC
PI CHAMPAIGN
PA 1607 N MARKET ST, PO BOX 5076, CHAMPAIGN, IL 61820-2200 USA
SN 1543-3080
EI 1543-5474
J9 J PHYS ACT HEALTH
JI J. Phys. Act. Health
PD MAY
PY 2015
VL 12
IS 5
BP 666
EP 674
DI 10.1123/jpah.2013-0260
PG 9
WC Public, Environmental & Occupational Health
SC Public, Environmental & Occupational Health
GA CO5DD
UT WOS:000359178900011
PM 26237780
ER
PT J
AU Park, S
Choi, W
Han, DK
Ko, H
AF Park, Sangwook
Choi, Woohyun
Han, David K.
Ko, Hanseok
TI Acoustic Event Filterbank for Enabling Robust Event Recognition by
Cleaning Robot
SO IEEE TRANSACTIONS ON CONSUMER ELECTRONICS
LA English
DT Article
DE Acoustic event recognition; robust feature extraction; and cleaning
robot platform
AB Due to its mobile capability when performing house-cleaning function in absence of home owners, a cleaning robot has sufficient capacity to be fully utilized as an automatic surveillance system for indoor security. While many research efforts have been made recently to provide a robot understand the auditory environment, there are still many obstacles to overcome. One of the most serious challenges encountered in providing accurate auditory scene analysis is the presence of robot ego noise. Robot ego noise is primarily generated by the embedded motors on a robot during its operation. This paper proposes a new filterbank design based on discriminative distances within event-to-noise and event-to-event, respectively. The proposed filterbank essentially is designed to provide reliable recognition under cleaning robot ego noise through the result of event spectrum analysis. The experimental results indicate that the features extracted by the proposed filterbank are more robust than the conventional ones(1).
C1 [Park, Sangwook; Choi, Woohyun; Ko, Hanseok] Korea Univ, Sch Elect Engn, Seoul 136713, South Korea.
[Han, David K.] Off Naval Res, Arlington, VA 22217 USA.
RP Park, S (reprint author), Korea Univ, Sch Elect Engn, Seoul 136713, South Korea.
EM swpark@ispl.korea.ac.kr; whchoi@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 25
TC 1
Z9 1
U1 1
U2 3
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 MAY
PY 2015
VL 61
IS 2
BP 189
EP 196
PG 8
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA CM6MU
UT WOS:000357803600008
ER
PT J
AU Hysell, DL
Milla, MA
Rodrigues, FS
Varney, RH
Huba, JD
AF Hysell, D. L.
Milla, M. A.
Rodrigues, F. S.
Varney, R. H.
Huba, J. D.
TI Topside equatorial ionospheric density, temperature, and composition
under equinox, low solar flux conditions
SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
LA English
DT Article
ID INCOHERENT-SCATTER ANALYSIS; F-REGION; JICAMARCA; ARECIBO; MINIMUM;
PLASMA; DRIFT; TRANSITION; SPECTRUM; MAXIMUM
AB We present observations of the topside ionosphere made at the Jicamarca Radio Observatory in March and September 2013, made using a full-profile analysis approach. Recent updates to the methodology employed at Jicamarca are also described. Measurements of plasma number density, electron and ion temperatures, and hydrogen and helium ion fractions up to 1500 km altitude are presented for 3 days in March and September. The main features of the observations include a sawtooth-like diurnal variation in h(t), the transition height where the O+ ion fraction falls to 50%, the appearance of weak He+ layers just below h(t), and a dramatic increase in plasma temperature at dawn followed by a sharp temperature depression around local noon. These features are consistent from day to day and between March and September. Coupled Ion Neutral Dynamics Investigation data from the Communication Navigation Outage Forecast System satellite are used to help validate the March Jicamarca data. The SAMI2-PE model was able to recover many of the features of the topside observations, including the morphology of the plasma density profiles and the light-ion composition. The model, forced using convection speeds and meridional thermospheric winds based on climatological averages, did not reproduce the extreme temperature changes in the topside between sunrise and noon. Some possible causes of the discrepancies are discussed.
C1 [Hysell, D. L.] Cornell Univ, Earth & Atmospher Sci, Ithaca, NY 14850 USA.
[Milla, M. A.] Jicamarca Radio Observ, Lima, Peru.
[Rodrigues, F. S.] Univ Texas Dallas, William B Hanson Ctr Space Sci, Richardson, TX 75083 USA.
[Varney, R. H.] SRI Int, Menlo Pk, CA 94025 USA.
[Huba, J. D.] Naval Res Lab, Washington, DC USA.
RP Hysell, DL (reprint author), Cornell Univ, Earth & Atmospher Sci, Ithaca, NY 14850 USA.
EM dlh37@cornell.edu
RI Milla, Marco/L-9345-2013;
OI Milla, Marco/0000-0001-9067-863X; Varney, Roger/0000-0002-5976-2638
FU NSF through Cornell [AGS-1433968]; NRL Base Funds
FX The Jicamarca Radio Observatory is a facility of the Instituto Geofisico
del Peru operated with support from NSF award AGS-1433968 through
Cornell. The help of the staff is much appreciated. Research of J.D.H.
was supported by NRL Base Funds. Data used for this publication are
available through the Madrigal database (http://www.openmadrigal.org).
We thank the CINDI team for making data available for this study. CINDI
data are available at http://cindispace.utdallas.edu/data.html.
NR 49
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Z9 2
U1 1
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 MAY
PY 2015
VL 120
IS 5
BP 3899
EP 3912
DI 10.1002/2015JA021168
PG 14
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA CM7KA
UT WOS:000357869600047
ER
PT J
AU Gallagher, CM
More, K
Masaquel, A
Kamath, T
Guerin, A
Ionescu-Ittu, R
Gauthier-Loiselle, M
Nitulescu, R
Sicignano, N
Barnett, B
Wu, E
AF Gallagher, Christopher M.
More, Kenneth
Masaquel, Anthony
Kamath, Tripthi
Guerin, Annie
Ionescu-Ittu, Raluca
Gauthier-Loiselle, Marjolaine
Nitulescu, Roy
Sicignano, Nicholas
Barnett, Brian
Wu, Eric
TI Delay in trastuzumab initiation leads to decreased overall survival in
patients with HER2+early stage breast cancer
SO CANCER RESEARCH
LA English
DT Meeting Abstract
CT 37th Annual CTRC-AACR San Antonio Breast Cancer Symposium
CY DEC 09-13, 2014
CL San Antonio, TX
SP Canc Therapy Res Ctr, Amer Assoc Canc Res
C1 [Gallagher, Christopher M.] Walter Reed Natl Mil Med Ctr, Washington, DC USA.
[More, Kenneth] Naval Med Ctr Portsmouth, Portsmouth, VA USA.
[Masaquel, Anthony; Kamath, Tripthi; Barnett, Brian] Genentech Inc, San Francisco, CA USA.
[Guerin, Annie; Ionescu-Ittu, Raluca; Gauthier-Loiselle, Marjolaine; Nitulescu, Roy; Wu, Eric] Anal Grp Inc, New York, NY USA.
[Sicignano, Nicholas] Hlth ResearchTx LLC, Trevose, PA USA.
NR 0
TC 0
Z9 0
U1 0
U2 4
PU AMER ASSOC CANCER RESEARCH
PI PHILADELPHIA
PA 615 CHESTNUT ST, 17TH FLOOR, PHILADELPHIA, PA 19106-4404 USA
SN 0008-5472
EI 1538-7445
J9 CANCER RES
JI Cancer Res.
PD MAY 1
PY 2015
VL 75
SU 9
MA P5-21-03
DI 10.1158/1538-7445.SABCS14-P5-21-03
PG 2
WC Oncology
SC Oncology
GA CL1UK
UT WOS:000356730203184
ER
PT J
AU Henry, NC
Knorr, DB
Williams, KS
Baril, N
Nallon, E
Lenhart, JL
Andzelm, JW
Pellegrino, J
Tidrow, M
Cleveland, E
Bandara, S
AF Henry, Nathan C.
Knorr, Daniel B., Jr.
Williams, Kristen S.
Baril, Neil
Nallon, Eric
Lenhart, Joseph L.
Andzelm, Jan W.
Pellegrino, Joseph
Tidrow, Meimei
Cleveland, Erin
Bandara, Sumith
TI Chemical and physical passivation of type II strained-layer superlattice
devices by means of thiolated self-assembled monolayers and polymer
encapsulates
SO INFRARED PHYSICS & TECHNOLOGY
LA English
DT Article; Proceedings Paper
CT 8th International Workshop on Quantum Structure Infrared Photodetectors
(QSIP)
CY JUN 29-JUL 03, 2014
CL Santa Fe, NM
SP Univ New Mexico, Georgia State Univ, NASA Jet Propuls Lab, AF Res Lab, Army Res Off
DE InAs/GaSb superlattice; Infrared detector; Passivation; Thiol; SAM;
Polymer
ID SEMICONDUCTOR SURFACES; MOLECULES; INAS
AB The efficacy of solution deposition of thiolated self-assembled monolayers (SAMs) has been explored for the purpose of passivating III-V type II superlattice (T2SL) photodetectors, more specifically a p-type heterojunction device. Sulfur passivation has previously been achieved on T2SL devices. However, degradation over time, temperature sensitivity and inconsistent reproducibility necessitate a physical encapsulate that can chemically bond to the chemical passivant. Thus, this research investigates two passivation methods, surface passivation with a thiol monolayer and passivation with a polymer encapsulant with a view toward future combination of these techniques. Analysis of the physical and chemical condition of the surface prior to deposition assisted in the development of ideal processes for optimized film quality. Successful deposition was facilitated by in situ oxide removal. Various commercially available functional (cysteamine) and non-functional (alkane) thiolated monolayers were investigated. Dark current was reduced by 3 orders of magnitude and achieved negligible surface leakage at low bias levels. The lowest dark current result, 7.69 x 10(-6) A/cm(2) at 50 mV, was achieved through passivation with cysteamine. (C) 2014 Elsevier B.V. All rights reserved.
C1 [Henry, Nathan C.] Fulcrum Co, Centreville, VA 20120 USA.
[Henry, Nathan C.; Baril, Neil; Nallon, Eric; Pellegrino, Joseph; Tidrow, Meimei; Bandara, Sumith] US Army RDECOM CERDEC NVESD, Ft Belvoir, VA 22060 USA.
[Knorr, Daniel B., Jr.; Williams, Kristen S.; Lenhart, Joseph L.; Andzelm, Jan W.] US Army, Res Lab, Aberdeen Proving Ground, MD 21005 USA.
[Cleveland, Erin] US Navy, Res Lab, Washington, DC 20375 USA.
RP Henry, NC (reprint author), 10221 Burbeck Rd, Ft Belvoir, VA 22060 USA.
EM info@nvl.army.mil
NR 26
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Z9 1
U1 0
U2 13
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1350-4495
EI 1879-0275
J9 INFRARED PHYS TECHN
JI Infrared Phys. Technol.
PD MAY
PY 2015
VL 70
BP 48
EP 52
DI 10.1016/j.infrared.2014.10.015
PG 5
WC Instruments & Instrumentation; Optics; Physics, Applied
SC Instruments & Instrumentation; Optics; Physics
GA CL8OM
UT WOS:000357234000011
ER
PT J
AU Hwang, PA
Fois, F
AF Hwang, Paul A.
Fois, Franco
TI Surface roughness and breaking wave properties retrieved from
polarimetric microwave radar backscattering
SO JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
LA English
DT Article; Proceedings Paper
CT Open Science Symposium on Western Pacific Ocean Circulation and Climate
CY OCT 15-17, 2012
CL Qingdao, PEOPLES R CHINA
SP NW Pacific Ocean Circulat & Climate Expt
DE polarimetric radar scattering; geophysical model function; surface
roughness; wave breaking
ID MEAN-SQUARE SLOPE; C-BAND; VECTOR WINDS; SEA CLUTTER; OCEAN; MODEL;
SCATTERING; SPECTRA; FOAM
AB Ocean surface roughness and wave breaking are the two main contributors of radar backscattering from the ocean surface. The relative weightings of the two contributions vary with the microwave polarization: the VV (vertical transmit vertical receive) is dominated by the Bragg resonance scattering mechanism, and the HH (horizontal transmit horizontal receive) and VH (horizontal transmit vertical receive or vertical transmit horizontal receive) contain nontrivial non-Bragg contributions mainly produced by breaking features. A method is developed to obtain the short-scale properties of ocean surface roughness and wave breaking from Ku, C, and L band polarimetric sea returns. The results are used for quantitative evaluation of the ocean surface roughness spectral models and for deriving understanding of the breaking contribution important to microwave ocean remote sensing, in particular its dependence on wind speed, microwave frequency, and incidence angle. Implications of the results to air-sea interaction applications are discussed.
C1 [Hwang, Paul A.] Naval Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
[Fois, Franco] Delft Univ Technol, Dept Geosci & Remote Sensing, Delft, Netherlands.
RP Hwang, PA (reprint author), Naval Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
EM paul.hwang@nrl.navy.mil
FU Office of Naval Research (NRL program) [61153N]
FX This work was sponsored by the Office of Naval Research (NRL program
elements 61153N). We are grateful for the comments from two anonymous
reviewers and the help by Seubson Soisuvarn (NOAA) for the lookup tables
of CMOD5.h and CMOD5.n GMFs. We are grateful for the comments and
suggestions from two anonymous reviewers. One of them pointed out that
CMOD5.h and Ku2011 have significantly improvement in the high wind
retrieval. NRL publication: NRL/JA/7260-15-0026. All the GMFs and data
used in this paper have been published in the referenced papers. Data
and processing codes can also be obtained from contacting the
corresponding author at paul.hwang@nrl.navy.mil.
NR 44
TC 6
Z9 6
U1 1
U2 7
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-9275
EI 2169-9291
J9 J GEOPHYS RES-OCEANS
JI J. Geophys. Res.-Oceans
PD MAY
PY 2015
VL 120
IS 5
BP 3640
EP 3657
DI 10.1002/2015JC010782
PG 18
WC Oceanography
SC Oceanography
GA CL0JI
UT WOS:000356628100026
ER
PT J
AU McClay, JC
Park, PJ
Janczewski, MG
Langford, LH
AF McClay, James C.
Park, Peter J.
Janczewski, Mark G.
Langford, Laura Heermann
TI Standard for improving emergency information interoperability: the HL7
data elements for emergency department systems
SO JOURNAL OF THE AMERICAN MEDICAL INFORMATICS ASSOCIATION
LA English
DT Article
DE emergency medicine; military medicine; terminology as topic; public
health surveillance
ID DECISION-SUPPORT; HEALTH DATA; FRAMEWORK; PROJECT
AB Background Emergency departments in the United States service over 130 million visits per year. The demands for information from these visits require interoperable data exchange standards. While multiple data exchange specifications are in use, none have undergone rigorous standards review. This paper describes the creation and balloting of the Health Level Seven (HL7) Data Elements for Emergency Department Systems (DEEDS).
Methods Existing data exchange specifications were collected and organized into categories reflecting the workflow of emergency care. The concepts were then mapped to existing standards for vocabulary, data types, and the HL7 information model. The HL7 community then processed the specification through the normal balloting process addressing all comments and concerns. The resulting specification was then submitted for publication as an HL7 informational standard.
Results The resulting specification contains 525 concepts related to emergency care required for operations and reporting to external agencies. An additional 200 of the most commonly ordered laboratory tests were included. Each concept was given a unique identifier and mapped to Logical Observation Identifiers, Names, and Codes (LOINC). HL7 standard data types were applied.
Discussion The HL7 DEEDS specification represents the first set of common ED related data elements to undergo rigorous standards development. The availability of this standard will contribute to improved interoperability of emergency care data.
C1 [McClay, James C.] Univ Nebraska Med Ctr, Dept Emergency Med, Nebraska Med Ctr 981150, Omaha, NE 68198 USA.
[Park, Peter J.] NMCSD, Dept Emergency Med, San Diego, CA 92136 USA.
[Janczewski, Mark G.] Med Networks LLC, Annandale, VA 22003 USA.
[Langford, Laura Heermann] Intermt Healthcare, Homer Warner Ctr Informat Res, Salt Lake City, UT 84107 USA.
RP McClay, JC (reprint author), Univ Nebraska Med Ctr, Dept Emergency Med, Nebraska Med Ctr 981150, Omaha, NE 68198 USA.
EM jmcclay@unmc.edu
NR 29
TC 1
Z9 1
U1 0
U2 6
PU OXFORD UNIV PRESS
PI OXFORD
PA GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
SN 1067-5027
EI 1527-974X
J9 J AM MED INFORM ASSN
JI J. Am. Med. Inf. Assoc.
PD MAY
PY 2015
VL 22
IS 3
BP 529
EP 535
DI 10.1093/jamia/ocu040
PG 7
WC Computer Science, Information Systems; Computer Science,
Interdisciplinary Applications; Health Care Sciences & Services;
Information Science & Library Science; Medical Informatics
SC Computer Science; Health Care Sciences & Services; Information Science &
Library Science; Medical Informatics
GA CL1PV
UT WOS:000356717100006
PM 25769684
ER
PT J
AU Hohenberger, M
Radha, PB
Myatt, JF
LePape, S
Marozas, JA
Marshall, FJ
Michel, DT
Regan, SP
Seka, W
Shvydky, A
Sangster, TC
Bates, JW
Betti, R
Boehly, TR
Bonino, MJ
Casey, DT
Collins, TJB
Craxton, RS
Delettrez, JA
Edgell, DH
Epstein, R
Fiksel, G
Fitzsimmons, P
Frenje, JA
Froula, DH
Goncharov, VN
Harding, DR
Kalantar, DH
Karasik, M
Kessler, TJ
Kilkenny, JD
Knauer, JP
Kurz, C
Lafon, M
LaFortune, KN
MacGowan, BJ
Mackinnon, AJ
MacPhee, AG
McCrory, RL
McKenty, PW
Meeker, JF
Meyerhofer, DD
Nagel, SR
Nikroo, A
Obenschain, S
Petrasso, RD
Ralph, JE
Rinderknecht, HG
Rosenberg, MJ
Schmitt, AJ
Wallace, RJ
Weaver, J
Widmayer, C
Skupsky, S
Solodov, AA
Stoeckl, C
Yaakobi, B
Zuegel, JD
AF Hohenberger, M.
Radha, P. B.
Myatt, J. F.
LePape, S.
Marozas, J. A.
Marshall, F. J.
Michel, D. T.
Regan, S. P.
Seka, W.
Shvydky, A.
Sangster, T. C.
Bates, J. W.
Betti, R.
Boehly, T. R.
Bonino, M. J.
Casey, D. T.
Collins, T. J. B.
Craxton, R. S.
Delettrez, J. A.
Edgell, D. H.
Epstein, R.
Fiksel, G.
Fitzsimmons, P.
Frenje, J. A.
Froula, D. H.
Goncharov, V. N.
Harding, D. R.
Kalantar, D. H.
Karasik, M.
Kessler, T. J.
Kilkenny, J. D.
Knauer, J. P.
Kurz, C.
Lafon, M.
LaFortune, K. N.
MacGowan, B. J.
Mackinnon, A. J.
MacPhee, A. G.
McCrory, R. L.
McKenty, P. W.
Meeker, J. F.
Meyerhofer, D. D.
Nagel, S. R.
Nikroo, A.
Obenschain, S.
Petrasso, R. D.
Ralph, J. E.
Rinderknecht, H. G.
Rosenberg, M. J.
Schmitt, A. J.
Wallace, R. J.
Weaver, J.
Widmayer, C.
Skupsky, S.
Solodov, A. A.
Stoeckl, C.
Yaakobi, B.
Zuegel, J. D.
TI Polar-direct-drive experiments on the National Ignition Facility
SO PHYSICS OF PLASMAS
LA English
DT Article; Proceedings Paper
CT 56th Annual Meeting of the APS Division of Plasma Physics
CY OCT 27-31, 2014
CL New Orleans, LA
ID LASER; INSTABILITY; OMEGA; SIMULATIONS; PERFORMANCE; PLASMAS; FUSION;
HYDRODYNAMICS; TARGETS; SYSTEM
AB To support direct-drive inertial confinement fusion experiments at the National Ignition Facility (NIF) [G. H. Miller, E. I. Moses, and C. R. Wuest, Opt. Eng. 43, 2841 (2004)] in its indirect-drive beam configuration, the polar-direct-drive (PDD) concept [S. Skupsky et al., Phys. Plasmas 11, 2763 (2004)] has been proposed. Ignition in PDD geometry requires direct-drive-specific beam smoothing, phase plates, and repointing the NIF beams toward the equator to ensure symmetric target irradiation. First experiments to study the energetics and preheat in PDD implosions at the NIF have been performed. These experiments utilize the NIF in its current configuration, including beam geometry, phase plates, and beam smoothing. Room-temperature, 2.2-mm-diam plastic shells filled with D-2 gas were imploded with total drive energies ranging from similar to 500 to 750 kJ with peak powers of 120 to 180 TW and peak on-target irradiances at the initial target radius from 8 x 10(14) to 1.2 x 10(15) W/cm(2). Results from these initial experiments are presented, including measurements of shell trajectory, implosion symmetry, and the level of hot-electron preheat in plastic and Si ablators. Experiments are simulated with the 2-D hydrodynamics code DRACO including a full 3-D ray-trace to model oblique beams, and models for nonlocal electron transport and cross-beam energy transport (CBET). These simulations indicate that CBET affects the shell symmetry and leads to a loss of energy imparted onto the shell, consistent with the experimental data. (c) 2015 AIP Publishing LLC.
C1 [Hohenberger, M.; Radha, P. B.; Myatt, J. F.; Marozas, J. A.; Marshall, F. J.; Michel, D. T.; Regan, S. P.; Seka, W.; Shvydky, A.; Sangster, T. C.; Betti, R.; Boehly, T. R.; Bonino, M. J.; Collins, T. J. B.; Craxton, R. S.; Delettrez, J. A.; Edgell, D. H.; Epstein, R.; Fiksel, G.; Froula, D. H.; Goncharov, V. N.; Harding, D. R.; Kessler, T. J.; Knauer, J. P.; Lafon, M.; McCrory, R. L.; McKenty, P. W.; Meyerhofer, D. D.; Rosenberg, M. J.; Skupsky, S.; Solodov, A. A.; Stoeckl, C.; Yaakobi, B.; Zuegel, J. D.] Univ Rochester, Laser Energet Lab, Rochester, NY 14623 USA.
[LePape, S.; Casey, D. T.; Kalantar, D. H.; LaFortune, K. N.; MacGowan, B. J.; Mackinnon, A. J.; MacPhee, A. G.; Meeker, J. F.; Nagel, S. R.; Ralph, J. E.; Wallace, R. J.; Widmayer, C.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA.
[Bates, J. W.; Karasik, M.; Obenschain, S.; Schmitt, A. J.; Weaver, J.] US Naval Res Lab, Washington, DC 20375 USA.
[Fitzsimmons, P.; Kilkenny, J. D.; Kurz, C.; Nikroo, A.] Gen Atom Co, San Diego, CA 92121 USA.
[Frenje, J. A.; Petrasso, R. D.; Rinderknecht, H. G.] MIT, Cambridge, MA 02139 USA.
RP Hohenberger, M (reprint author), Univ Rochester, Laser Energet Lab, 250 E River Rd, Rochester, NY 14623 USA.
RI lepape, sebastien/J-3010-2015; MacKinnon, Andrew/P-7239-2014
OI MacKinnon, Andrew/0000-0002-4380-2906
FU Department of Energy National Nuclear Security Administration
[DE-NA0001944]; University of Rochester; New York State Energy Research
and Development Authority; DOE [LLNL-JRNL-664443]
FX This material was based upon work supported by the Department of Energy
National Nuclear Security Administration under Award No. DE-NA0001944,
the University of Rochester, and the New York State Energy Research and
Development Authority. The support of DOE does not constitute an
endorsement by DOE of the views expressed in this article
(LLNL-JRNL-664443).
NR 75
TC 17
Z9 17
U1 4
U2 33
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 1070-664X
EI 1089-7674
J9 PHYS PLASMAS
JI Phys. Plasmas
PD MAY
PY 2015
VL 22
IS 5
AR 056308
DI 10.1063/1.4920958
PG 15
WC Physics, Fluids & Plasmas
SC Physics
GA CJ9AI
UT WOS:000355794300133
ER
PT J
AU Armstrong, EP
Malone, DC
Yeh, W
Dahl, GJ
Lee, R
Sicignano, N
AF Armstrong, E. P.
Malone, D. C.
Yeh, W.
Dahl, G. J.
Lee, R.
Sicignano, N.
TI THE ECONOMIC BURDEN OF SPINAL MUSCULAR ATROPHY
SO VALUE IN HEALTH
LA English
DT Meeting Abstract
C1 [Armstrong, E. P.] Strateg Therapeut LLC, Oro Valley, AZ USA.
[Malone, D. C.] Univ Arizona, Tucson, AZ USA.
[Yeh, W.] Biogen Idec Inc, Cambridge, MA USA.
[Dahl, G. J.] Naval Med Ctr Portsmouth, Portsmouth, VA USA.
[Lee, R.] Naval Med Res Unit Dayton, Dayton, OH USA.
[Sicignano, N.] Hlth ResearchTx, Trevose, PA USA.
NR 0
TC 0
Z9 0
U1 1
U2 3
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 1098-3015
EI 1524-4733
J9 VALUE HEALTH
JI Value Health
PD MAY
PY 2015
VL 18
IS 3
MA PND25
BP A282
EP A282
PG 1
WC Economics; Health Care Sciences & Services; Health Policy & Services
SC Business & Economics; Health Care Sciences & Services
GA CI1IZ
UT WOS:000354498504314
ER
PT J
AU Gupta, S
LeBlanc, JM
Shukla, A
AF Gupta, Sachin
LeBlanc, James M.
Shukla, Arun
TI Implosion of Longitudinally Off-Centered Cylindrical Volumes in a
Confining Environment
SO JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME
LA English
DT Article
DE implosion; implodable volume; collapse; pressure waves; computational
modeling; fluid-structure interaction; water hammer; confined
environment; longitudinal offset
ID UNDERWATER IMPLOSION; CYLINDERS; SHELLS
AB A comprehensive experimental/numerical study on the implosion of longitudinally off-centered cylindrical implodable volumes was conducted within a tubular confining space. In particular, the aim of this study was to examine the changes in the implosion mechanics and in the nature of pressure waves, arising from the longitudinally off-centered location of the implodable volume. Experiments were conducted with 31.8 mm outer diameter, cylindrical aluminum 6061-T6 implodable volumes placed concentrically within the confining tube. Three longitudinal offset locations were chosen within the confining tube, such that distance from the center of the implodable volume to the center of confining tube is equal to: (a) zero, (b) 3/7 of the half-length of confining tube (L), and (c) 5 L/7. Pressure transducers mounted on the inner surface of the confining tube were used to capture the pressure waves released during the implosion event. Computational simulations were performed using a coupled Eulerian-Lagrangian scheme to explicitly model the implosion process of the tubes along with the resulting compressible fluid flow. The experiments revealed that the longitudinal asymmetric placement of the implodable volume enhances the strength of hammer pressure waves generated during the implosion process. The off-centered location of the implodable volume causes a pressure imbalance in the entire length of the confining tube. Hence, the water particle velocity shifts toward the implodable volume producing high pressure region at the end-plate near the implodable volume, while the other end-plate experiences significantly longer cavitation due to low pressure. This far end-plate cavitation duration is also found to increase with increasing longitudinal offset, even though the total combined cavitation duration at both the end-plates is approximately same for all offset locations. With high correlation observed between the experiments and simulations, computation models were further used to correlate the longitudinal offset and the signature of pressure waves at various interpolated locations. Simulations show that there is increase in both the peak pressure and the impulse of the hammer wave with increasing longitudinal offset of the implodable volume. Simulations also show that the collapse rate of the implodable volume decreases with the increasing longitudinal offset.
C1 [Gupta, Sachin; Shukla, Arun] Univ Rhode Isl, Dept Mech Ind & Syst Engn, Dynam Photo Mech Lab, Kingston, RI 02881 USA.
[LeBlanc, James M.] Naval Undersea Warfare Ctr, Div Newport, Newport, RI 02841 USA.
RP Shukla, A (reprint author), Univ Rhode Isl, Dept Mech Ind & Syst Engn, Dynam Photo Mech Lab, Kingston, RI 02881 USA.
EM gupsac@my.uri.edu; james.m.leblanc@navy.mil; shuklaa@uri.edu
FU Office of Naval Research Computational Mechanics Program
[N00014-12-1-0382, N0001412WX21206]
FX The authors kindly acknowledge the financial support provided by the
Office of Naval Research Computational Mechanics Program managed by Dr.
Stephen E. Turner under Grant Nos. N00014-12-1-0382 (URI) and
N0001412WX21206 (NUWC).
NR 20
TC 2
Z9 2
U1 1
U2 2
PU ASME
PI NEW YORK
PA TWO PARK AVE, NEW YORK, NY 10016-5990 USA
SN 0021-8936
EI 1528-9036
J9 J APPL MECH-T ASME
JI J. Appl. Mech.-Trans. ASME
PD MAY
PY 2015
VL 82
IS 5
AR 051002
DI 10.1115/1.4029917
PG 12
WC Mechanics
SC Mechanics
GA CK1BW
UT WOS:000355941400002
ER
PT J
AU Zhao, Y
Taylor, MJ
Randall, CE
Lumpe, JD
Siskind, DE
Bailey, SM
Russell, JM
AF Zhao, Y.
Taylor, M. J.
Randall, C. E.
Lumpe, J. D.
Siskind, D. E.
Bailey, S. M.
Russell, J. M., III
TI Investigating seasonal gravity wave activity in the summer polar
mesosphere
SO JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS
LA English
DT Article
ID NOCTILUCENT CLOUDS; MIDDLE ATMOSPHERE; LIDAR OBSERVATIONS;
HIGH-LATITUDES; SOLAR-CYCLE; PROPAGATION; BREAKING; THERMOSPHERE;
CAMPAIGN; EXPLORER
AB The NASA Aeronomy of Ice in the Mesosphere (AIM) satellite is the first spaceborne mission dedicated to studying high-altitude (similar to 83 km) Polar Mesospheric Clouds (PMCs). Since its launch in 2007, the Cloud Imaging and Particle Size (CIPS) instrument onboard AIM has obtained large-field, high resolution (25 km(2)/pixel) images of the PMCs, enabling a unique investigation of mesospheric gravity wave activity in the summer polar mesosphere where previous measurements have been sparse. In this study, we have analyzed 12 consecutive seasons of AIM/CIPS PMC albedo data to determine the statistical properties of medium and large horizontal scale ( > 100 km) gravity waves present in the PMC data. Over 60,000 wave events with horizontal scale-sizes ranging up to > 2000 km have been identified and measured, revealing a wealth of wave events particularly in the similar to 300-800 km range where our analysis sensitivity is largest. These data are ideal for investigating the intra-seasonal, inter-annual and hemispheric variability of these waves as observed over the whole summer polar cap regions. Throughout this 6 year study, the wave activity in the southern hemisphere was found to be consistently 10-15% higher than in the northern hemisphere and both the northern and southern hemisphere wave activity was determined to decrease systematically (by similar to 15%) during the course of each summer season. This decrease agrees well with previous seasonal stratospheric studies of variations in the wave energy, suggesting a direct influence of the lower atmospheric sources on polar mesospheric dynamics. Very similar and consistent results were also found from season to season in both hemispheres providing new information for gravity wave modeling and dynamical studies of the high-latitude summer-time mesosphere. (C) 2015 Elsevier Ltd. All rights reserved.
C1 [Zhao, Y.; Taylor, M. J.] Utah State Univ, Ctr Atmospher & Space Sci, Logan, UT 84322 USA.
[Randall, C. E.] Univ Colorado, Dept Atmospher & Ocean Sci, Boulder, CO 80309 USA.
[Lumpe, J. D.] Computat Phys Inc, Boulder, CO USA.
[Siskind, D. E.] Naval Res Lab, Washington, DC 20375 USA.
[Bailey, S. M.] Virginia Tech, Bradley Dept Elect & Comp Engn, Blacksburg, VA USA.
[Russell, J. M., III] Hampton Univ, Ctr Atmospher Sci, Hampton, VA 23668 USA.
RP Zhao, Y (reprint author), Utah State Univ, Ctr Atmospher & Space Sci, Logan, UT 84322 USA.
EM yu.cheng@usu.edu
RI Randall, Cora/L-8760-2014
OI Randall, Cora/0000-0002-4313-4397
FU NASA [NAS5-03132]; Hampton University [05-17]
FX The AIM satellite mission was developed as part of the NASA Small
Explorer Program under contract NAS5-03132. The gravity wave research
presented herein was supported as part of this mission through a
subcontract from Hampton University to Utah State University # 05-17. We
gratefully acknowledge the tremendous efforts of the entire AIM program,
especially mission engineering, operations, data processing and science
teams, for sustaining the excellent quality and continuity of the CIPS
image data. We further acknowledge Dr. Dave Rusch for his considerable
efforts and dedication as PI of the CIPS instrument during its
development and initial on orbit measurements. We also thank the
NOGAPS-ALPHA team for the use of their assimilated wind fields for
investigating possible causes of the observed wave variability. We wish
to acknowledge Dr. Damian Murphy and the reviewers for their very
helpful comments and suggestions.
NR 85
TC 0
Z9 1
U1 1
U2 5
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 MAY
PY 2015
VL 127
SI SI
BP 8
EP 20
DI 10.1016/j.jastp.2015.03.008
PG 13
WC Geochemistry & Geophysics; Meteorology & Atmospheric Sciences
SC Geochemistry & Geophysics; Meteorology & Atmospheric Sciences
GA CJ7VO
UT WOS:000355708700003
ER
PT J
AU Bartlett, JL
Phillips, J
Galarneau, MR
AF Bartlett, Jamie L.
Phillips, Jennifer
Galarneau, Michael R.
TI A Descriptive Study of the US Marine Corps Fitness Tests (2000-2012)
SO MILITARY MEDICINE
LA English
DT Article
ID PHYSICAL-FITNESS; INFANTRY SOLDIERS; INJURIES
AB This article describes the performance of active duty U.S. Marines on the Physical Fitness Test (PFT) and Combat Fitness Test (CFT) during calendar years 2000 through 2012. Our study sample included PFT composite scores (n = 543,185), PFT and CFT composite scores (n = 160,936), and PFT and CFT event scores (n = 135,926 and n = 201,953, respectively). In general, all Marines performed very well on each fitness test, with overall annual improvements. Interestingly, the majority of female Marines passed the minimum male standard on the CFT. Further studies will evaluate the relationship of fitness test performance and injury.
C1 [Bartlett, Jamie L.; Phillips, Jennifer; Galarneau, Michael R.] Naval Hlth Res Ctr, Dept Med Modeling Simulat & Mission Support, San Diego, CA 92106 USA.
RP Bartlett, JL (reprint author), Naval Hlth Res Ctr, Dept Med Modeling Simulat & Mission Support, 140 Sylvester Rd, San Diego, CA 92106 USA.
RI Bartlett, Jamie/B-9756-2014
OI Bartlett, Jamie/0000-0001-7934-7119
FU BUMED Wounded, Ill, and Injured W263
FX The authors would like to specifically thank Peggy Han, Kaeley Shannon
and Jaime Horton for their assistance with this manuscript. This work
was supported by BUMED Wounded, Ill, and Injured W263, Work Unit No.
60332.
NR 12
TC 1
Z9 1
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 MAY
PY 2015
VL 180
IS 5
BP 513
EP 517
DI 10.7205/MILMED-D-14-00490
PG 5
WC Medicine, General & Internal
SC General & Internal Medicine
GA CJ5WF
UT WOS:000355562600014
PM 25939104
ER
PT J
AU Mostl, C
Rollett, T
Frahm, RA
Liu, YD
Long, DM
Colaninno, RC
Reiss, MA
Temmer, M
Farrugia, CJ
Posner, A
Dumbovic, M
Janvier, M
Demoulin, P
Boakes, P
Devos, A
Kraaikamp, E
Mays, ML
Vrsnak, B
AF Mostl, Christian
Rollett, Tanja
Frahm, Rudy A.
Liu, Ying D.
Long, David M.
Colaninno, Robin C.
Reiss, Martin A.
Temmer, Manuela
Farrugia, Charles J.
Posner, Arik
Dumbovic, Mateja
Janvier, Miho
Demoulin, Pascal
Boakes, Peter
Devos, Andy
Kraaikamp, Emil
Mays, Mona L.
Vrsnak, Bojan
TI Strong coronal channelling and interplanetary evolution of a solar storm
up to Earth and Mars
SO NATURE COMMUNICATIONS
LA English
DT Article
ID IN-SITU OBSERVATIONS; MASS EJECTIONS; MAGNETIC CLOUD; ARRIVAL TIMES;
WIND; PROPAGATION; SHOCK; CMES; SUN; DEFLECTION
AB The severe geomagnetic effects of solar storms or coronal mass ejections (CMEs) are to a large degree determined by their propagation direction with respect to Earth. There is a lack of understanding of the processes that determine their non-radial propagation. Here we present a synthesis of data from seven different space missions of a fast CME, which originated in an active region near the disk centre and, hence, a significant geomagnetic impact was forecasted. However, the CME is demonstrated to be channelled during eruption into a direction + 37 +/- 10 degrees (longitude) away from its source region, leading only to minimal geomagnetic effects. In situ observations near Earth and Mars confirm the channelled CME motion, and are consistent with an ellipse shape of the CME-driven shock provided by the new Ellipse Evolution model, presented here. The results enhance our understanding of CME propagation and shape, which can help to improve space weather forecasts.
C1 [Mostl, Christian; Rollett, Tanja] Austrian Acad Sci, Space Res Inst, A-8042 Graz, Austria.
[Mostl, Christian; Reiss, Martin A.; Temmer, Manuela; Boakes, Peter] Graz Univ, Inst Phys, IGAM Kanzelhohe Observ, A-8010 Graz, Austria.
[Frahm, Rudy A.] Southwest Res Inst, San Antonio, TX 78238 USA.
[Liu, Ying D.] Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab Space Weather, Beijing 100190, Peoples R China.
[Long, David M.] Univ Coll London, Mullard Space Sci Lab, Dorking RH5 6NT, Surrey, England.
[Colaninno, Robin C.] Naval Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Farrugia, Charles J.] Univ New Hampshire, Dept Phys, Ctr Space Sci, Durham, NH 03824 USA.
[Posner, Arik] NASA Headquarters, Washington, DC 20546 USA.
[Dumbovic, Mateja; Vrsnak, Bojan] Univ Zagreb, Fac Geodesy, Hvar Observ, Zagreb 10000, Croatia.
[Janvier, Miho] Univ Dundee, Dept Math, Dundee DD1 4HN, Scotland.
[Demoulin, Pascal] CNRS, UMR 8109, LESIA, Observ Paris, F-92195 Meudon, France.
[Devos, Andy; Kraaikamp, Emil] Royal Observ Belgium, Solar Terr Ctr Excellence SIDC, B-1180 Brussels, Belgium.
[Mays, Mona L.] Catholic Univ Amer, Washington, DC 20064 USA.
[Mays, Mona L.] NASA, Goddard Space Flight Ctr, Heliophys Sci Div, Greenbelt, MD 20771 USA.
RP Mostl, C (reprint author), Austrian Acad Sci, Space Res Inst, A-8042 Graz, Austria.
EM christian.moestl@oeaw.ac.at
RI Long, David/J-3227-2013;
OI Long, David/0000-0003-3137-0277; Dumbovic, Mateja/0000-0002-8680-8267;
Demoulin, Pascal/0000-0001-8215-6532; Liu, Ying/0000-0002-3483-5909
FU Austrian Science Fund (FWF) [P26174-N27, V195-N16]; Leverhulme Trust;
Croatian Science Foundation [6212]; Recruitment Program of Global
Experts of China; NSFC [41374173]; Specialized Research Fund for State
Key Laboratories of China; European Union Seventh Framework Programme
(FP7) [606692, 284461]; NASA [NNX13AP39G, NNX10AQ29G, NASW-00003];
STEREO Farside Grant; National Aeronautics and Space Administration
(NASA, HEOMD) under Jet Propulsion Laboratory (JPL) [1273039]; DLR and
DLR's Space Administration [50QM0501, 50QM1201]; Belgian Federal Science
Policy Office through the ESA-PRODEX program [4000103240]; European
Commission's Seventh Framework Programme (FP7) [263506, 263252]
FX This study was supported by the Austrian Science Fund (FWF):
[P26174-N27, V195-N16]. T.R. gratefully acknowledges the
JungforscherInnenfonds of the Council of the University Graz. D.M.L. is
a Leverhulme Early-Career Fellow funded by the Leverhulme Trust. M.D.
and B.V. acknowledge financial support by the Croatian Science
Foundation under the project 6212 SOLSTEL. Y.D.L. was supported by the
Recruitment Program of Global Experts of China, NSFC under grant
41374173 and the Specialized Research Fund for State Key Laboratories of
China. The presented work has received funding from the European Union
Seventh Framework Programme (FP7/2007-2013) under grant agreement No.
606692 [HELCATS] and No. 284461 [eHEROES]. Part of this work was
supported by NASA grants NNX13AP39G, NNX10AQ29G and STEREO Farside Grant
to UNH. MEX/ASPERA-3 is supported in the United States of America by
NASA contract NASW-00003. RAD is supported by the National Aeronautics
and Space Administration (NASA, HEOMD) under Jet Propulsion Laboratory
(JPL) subcontract #1273039 to the Southwest Research Institute and in
Germany by DLR and DLR's Space Administration grant numbers 50QM0501 and
50QM1201 to the Christian Albrechts University, Kiel. A.D. acknowledges
support from the Belgian Federal Science Policy Office through the
ESA-PRODEX program, grant No. 4000103240. E.K. acknowledges support from
the European Commission's Seventh Framework Programme (FP7/2007-2014)
under the grant agreement nr. 263506 (AFFECTS project), and grant
agreement nr. 263252 (COMESEP project). This research has made use of
the Heliophysics Event Knowledge database and the ESA JHelioviewer
software. We thank Janet G. Luhmann and Julia K. Thalmann for
discussions, and the Center for Geomagnetism in Kyoto for providing the
Dst indices.
NR 63
TC 20
Z9 20
U1 0
U2 5
PU NATURE PUBLISHING GROUP
PI LONDON
PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
SN 2041-1723
J9 NAT COMMUN
JI Nat. Commun.
PD MAY
PY 2015
VL 6
AR 7135
DI 10.1038/ncomms8135
PG 10
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA CJ5MZ
UT WOS:000355533300005
PM 26011032
ER
PT J
AU Field, LD
Delehanty, JB
Chen, YC
Medintz, IL
AF Field, Lauren D.
Delehanty, James B.
Chen, YungChia
Medintz, Igor L.
TI Peptides for Specifically Targeting Nanoparticles to Cellular
Organelles: Quo Vadis?
SO ACCOUNTS OF CHEMICAL RESEARCH
LA English
DT Review
ID QUANTUM DOTS; ENDOSOMAL ESCAPE; SIRNA DELIVERY; GOLD NANOPARTICLES;
IN-VITRO; ENDOPLASMIC-RETICULUM; PENETRATING PEPTIDES; FUSOGENIC
PEPTIDES; SURFACE PROTEINS; MAMMALIAN-CELLS
AB The interfacing of nanomaterials and especially nanoparticles within all aspects of biological research continues to grow at a nearly unabated pace with projected applications focusing on powerful new tools for cellular labeling, imaging, and sensing, theranostic materials, and drug delivery. At the most fundamental level, many of these nanoparticles are meant to target not only very specific cell-types, regardless of whether they are in a culture, tissue, an animal model, or ultimately a patient, but also in many cases a specific subcellular organelle. During this process, these materials will undergo a complex journey that must first find the target cell of interest, then be taken up by those cells across the extracellular membrane, and ultimately localize to a desired subcellular organelle, which may include the nucleus, plasma membrane, endolysosomal system, mitochondria, cytosol, or endoplasmic reticulum. To accomplish these complex tasks in the correct sequence, researchers are increasingly interested in selecting for and exploiting targeting peptides that can impart the requisite capabilities to a given nanoparticle construct. There are also a number of related criteria that need careful consideration for this undertaking centering on the nature and properties of the peptide vector itself, the peptidenanoparticle conjugate characteristics, and the target cell.
Here, we highlight some important issues and key research areas related to this burgeoning field. We begin by providing a brief overview of some criteria for optimal attachment of peptides to nanoparticles, the predominant methods by which nanoparticles enter cells, and some of the peptide sequences that have been utilized to facilitate nanoparticle delivery to cells focusing on those that engender the initial targeting and uptake. Because almost all materials delivered to cells by peptides utilize the endosomal system of vesicular transport and in many cases remain sequestered within the vesicles, we critically evaluate the issue of endosomal escape in the context of some recently reported successes in this regard. Following from this, peptides that have been reported to deliver nanoparticles to specific subcellular compartments are examined with a focus on what they delivered and the putative mechanisms by which they were able to accomplish this. The last section focuses on two areas that are critical to realizing this overall approach in the long term. The first is how to select for peptidyl sequences capable of improved or more specific cellular or subcellular targeting based upon principles commonly associated with drug discovery. The second looks at what has been done to create modular peptides that incorporate multiple desirable functionalities within a single, contiguous sequence. This provides a viable alternative to either the almost insurmountable challenge of finding one sequence capable of all functions or, alternatively, attaching different peptides with different functionalities to the same nanoparticle in different ratios when trying to orchestrate their net effects. Finally, we conclude with a brief perspective on the future evolution and broader impact of this growing area of bionanoscience.
C1 [Field, Lauren D.; Delehanty, James B.; Chen, YungChia; Medintz, Igor L.] US Naval Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 USA.
[Field, Lauren D.] Univ Maryland, Fischell Dept Bioengn, College Pk, MD 20742 USA.
[Chen, YungChia] Amer Soc Engn Educ, Washington, DC 20036 USA.
RP Delehanty, JB (reprint author), US Naval Res Lab, Ctr Bio Mol Sci & Engn, Code 6900,4555 Overlook Ave SW, Washington, DC 20375 USA.
EM james.delehanty@nrl.navy.mil; igor.medintz@nrl.navy.mil
FU NRL Nanosciences Institute; DTRA; American Society
FX The authors acknowledge the NRL Nanosciences Institute and DTRA. Y.C.
acknowledges an American Society for Engineering Education postdoctoral
fellowship.
NR 60
TC 24
Z9 24
U1 13
U2 98
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0001-4842
EI 1520-4898
J9 ACCOUNTS CHEM RES
JI Accounts Chem. Res.
PD MAY
PY 2015
VL 48
IS 5
BP 1380
EP 1390
DI 10.1021/ar500449v
PG 11
WC Chemistry, Multidisciplinary
SC Chemistry
GA CI8XT
UT WOS:000355055700018
PM 25853734
ER
PT J
AU Massey, M
Ancona, MG
Medintz, IL
Algar, WR
AF Massey, Melissa
Ancona, Mario G.
Medintz, Igor L.
Algar, W. Russ
TI Time-Gated DNA Photonic Wires with Forster Resonance Energy Transfer
Cascades Initiated by a Luminescent Terbium Donor
SO ACS PHOTONICS
LA English
DT Article
DE background rejection; DNA nanotechnology; energy transfer; lanthanide
complex; locked nucleic acid; photonic wire
ID QUANTUM DOTS; NANOTECHNOLOGY; NANOSTRUCTURES; FLUORESCENCE; ASSEMBLIES;
ORIGAMI; LNA; NANOPARTICLES; OPPORTUNITIES; COMPUTATION
AB Functional DNA nanotechnology is a rapidly growing area of research with many prospective photonic applications, including roles as wires and switches, logic operators, and smart biological probes and delivery vectors. Photonic wire constructs are one such example and comprise a Forster resonance energy transfer (FRET) cascade between fluorescent dyes arranged periodically along a DNA scaffold. To date, the majority of research on photonic wires has focused on setting new benchmarks for efficient energy transfer over more steps and across longer distances, using almost exclusively organic fluorescent dyes and strictly DNA structures. Here, we expand the range of materials utilized with DNA photonic wires by demonstrating the use of a luminescent terbium complex (Tb) as an initial donor for a four-step FRET cascade along a similar to 15 nm long DNA/locked nucleic acid (LNA) photonic wire. The inclusion of LNA nucleotides increases the thermal stability of the photonic wires while the Tb affords time-gated emission measurements and other optical benefits. Time-gating minimizes unwanted background emission, whether from direct excitation of fluorescent dyes along the length of the photonic wire, from excess dye-labeled DNA strands in the sample, or from a biological sample matrix. Observed efficiencies for Tb-to-dye energy transfer are also closer to the predicted values than those for dye-to-dye energy transfer, and the Tb can be used as an initial FRET donor for a variety of next-in-line acceptors at different spectral positions. We show that the key to using the Tb as an effective initial donor is to optimally position the next-in-line acceptor dye in a so-called "sweet spot" where the FRET efficiency is sufficiently high for practicality, but not so high as to suppress time-gated emission by shortening the Tb emission lifetime to within the instrument lag or delay time necessary for measurements. Overall, the initiation of a time-gated FRET cascade with a Tb donor is a very promising strategy for the design, characterization, and application of DNA-based photonic wires and other functional DNA nanostructures.
C1 [Massey, Melissa; Algar, W. Russ] Univ British Columbia, Dept Chem, Vancouver, BC V6T 1Z1, Canada.
[Ancona, Mario G.] US Navy, Res Lab, Elect Sci & Technol Div, Washington, DC 20375 USA.
[Medintz, Igor L.] US Navy, Res Lab, Ctr Biomol Sci & Engn, Washington, DC 20375 USA.
RP Algar, WR (reprint author), Univ British Columbia, Dept Chem, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada.
EM algar@chem.ubc.ca
FU Office of Naval Research (ONR); NRL; NRL NSI; Canada Foundation for
Innovation (CFI); Canada Research Chair (Tier 2); Michael Smith
Foundation for Health Research Scholar Award
FX The authors acknowledge support from the Office of Naval Research (ONR).
M.G.A. and I.L.M. acknowledge support from NRL and the NRL NSI. W.R.A.
acknowledges support from the Canada Foundation for Innovation (CFI), a
Canada Research Chair (Tier 2), and Michael Smith Foundation for Health
Research Scholar Award. The authors thank Lumiphore, Inc. for the
Lumi4-Tb-NHS reagent.
NR 57
TC 5
Z9 5
U1 11
U2 61
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 2330-4022
J9 ACS PHOTONICS
JI ACS Photonics
PD MAY
PY 2015
VL 2
IS 5
BP 639
EP 652
DI 10.1021/acsphotonics.5b00052
PG 14
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary;
Optics; Physics, Applied; Physics, Condensed Matter
SC Science & Technology - Other Topics; Materials Science; Optics; Physics
GA CI9CB
UT WOS:000355066900012
ER
PT J
AU Huang, L
Matta, CF
Wallace, S
Massa, L
Bernal, I
AF Huang, Lulu
Matta, Cherif F.
Wallace, Sonjae
Massa, Lou
Bernal, Ivan
TI A unique trapping by crystal forces of a hydronium cation displaying a
transition state structure
SO COMPTES RENDUS CHIMIE
LA English
DT Article
DE Bifurcated hydrogen bond; Protonated water structure; Electron density;
Bond critical point electron density; Topology of the electron density;
Quantum theory of atoms in molecules (QTAIM)
ID GAUSSIAN-BASIS SETS; DENSITY
AB An hydronium cation has been discovered which is unique among all crystallographic such ions of the Cambridge Database. Of composition H7O3+ it has a structure that is totally different from those classically known with structures H2O-H2O-H3O+ and H2O-(H3O+)-H2O. Unlike the crystallographically classical ones, the cation discussed here has a bifurcated hydrogen bond. From a central H3O+ moiety a single hydrogen bond donor extends to two adjacent water molecules. Quantum chemical calculations in absence of the crystal environment demonstrate that the bifurcated hydrogen bond structure is that of a transition state for the H7O3+ complex. Thus remarkably, it appears that crystal forces have captured the ion in what would otherwise be a short-lived and unstable transition state formation. (C) 2014 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved.
C1 [Huang, Lulu] Naval Res Lab, Ctr Computat Mat Sci, Washington, DC 20375 USA.
[Matta, Cherif F.] Mt St Vincent Univ, Dept Chem, Halifax, NS B3M 2J6, Canada.
[Matta, Cherif F.] Dalhousie Univ, Dept Chem, Halifax, NS B3H 4J3, Canada.
[Wallace, Sonjae; Massa, Lou; Bernal, Ivan] CUNY, Hunter Coll, New York, NY 10065 USA.
[Wallace, Sonjae; Massa, Lou] CUNY, Grad Ctr, New York, NY 10065 USA.
RP Massa, L (reprint author), CUNY, Hunter Coll, New York, NY 10065 USA.
EM lmassa@hunter.cuny.edu
FU Office of Naval Research (ONR) through Naval Research Laboratory's Basic
Research Program; Natural Sciences and Engineering Research Council of
Canada (NSERC); Canada Foundation for Innovation (CFI); Mount Saint
Vincent University; US Naval Research Laboratory [47203-00 01]; PSC CUNY
Award [63842-00 41]
FX Funding for this project was provided by the Office of Naval Research
(ONR) through the Naval Research Laboratory's Basic Research Program -
(L.H.), by the Natural Sciences and Engineering Research Council of
Canada (NSERC), Canada Foundation for Innovation (CFI), and Mount Saint
Vincent University - (C.F.M.), the US Naval Research Laboratory (project
#47203-00 01) and by a PSC CUNY Award (project # 63842-00 41) - (L.M.).
NR 16
TC 0
Z9 0
U1 1
U2 5
PU ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
PI PARIS
PA 23 RUE LINOIS, 75724 PARIS, FRANCE
SN 1631-0748
EI 1878-1543
J9 CR CHIM
JI C. R. Chim.
PD MAY
PY 2015
VL 18
IS 5
BP 511
EP 515
DI 10.1016/j.crci.2014.10.008
PG 5
WC Chemistry, Multidisciplinary
SC Chemistry
GA CI9BB
UT WOS:000355064300006
ER
PT J
AU Huang, L
Lambrakos, SG
Shabaev, A
Bernstein, N
Massa, L
AF Huang, Lulu
Lambrakos, Sam G.
Shabaev, Andrew
Bernstein, Noam
Massa, Lou
TI Molecular analysis of water clusters: Calculation of the cluster
structures and vibrational spectrum using density functional theory
SO COMPTES RENDUS CHIMIE
LA English
DT Article
DE THz spectra; Vibrational resonances; DFT calculations
ID SIMPLE POTENTIAL FUNCTIONS; GAUSSIAN-BASIS SETS; LIQUID WATER;
AB-INITIO; RAMAN-SPECTRA; TERAHERTZ SPECTROSCOPY; GLOBAL MINIMA;
LOW-FREQUENCY; DYNAMICS; SIMULATION
AB Density functional theory (DFT) is applied to obtain absorption spectra at THz frequencies for molecular clusters of H2O. The vibrational modes of the clusters are calculated. Coupling among molecular vibrational modes explains their spectral features associated with THz excitation. THz excitation is associated with vibrational frequencies which are here calculated within the DFT approximation of electronic states. This is done for both isolated molecules and collections of molecules in a cluster. The principal result of the paper is that a crystal-like cluster of 38 water molecules together with a continuum solvent background is sufficient to replicate well the experimental vibrational frequencies. (C) 2015 Academie des sciences. Published by Elsevier Masson SAS. All rights reserved.
C1 [Huang, Lulu; Lambrakos, Sam G.; Bernstein, Noam] Naval Res Lab, Washington, DC 20375 USA.
[Shabaev, Andrew] George Mason Univ, Fairfax, VA 22030 USA.
[Massa, Lou] CUNY, Hunter Coll, New York, NY 10065 USA.
RP Lambrakos, SG (reprint author), Naval Res Lab, Washington, DC 20375 USA.
EM lmassa@hunter.cuny.edu
FU Office of Naval Research (ONR) through Naval Research Laboratory's Basic
Research Program
FX Funding for this project was provided by the Office of Naval Research
(ONR) through the Naval Research Laboratory's Basic Research Program.
NR 68
TC 1
Z9 1
U1 3
U2 26
PU ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
PI PARIS
PA 23 RUE LINOIS, 75724 PARIS, FRANCE
SN 1631-0748
EI 1878-1543
J9 CR CHIM
JI C. R. Chim.
PD MAY
PY 2015
VL 18
IS 5
BP 516
EP 524
DI 10.1016/j.crci.2014.12.009
PG 9
WC Chemistry, Multidisciplinary
SC Chemistry
GA CI9BB
UT WOS:000355064300007
ER
PT J
AU Johnson, SD
Newman, HS
Glaser, ER
Cheng, SF
Tadjer, MJ
Kub, FJ
Eddy, CR
AF Johnson, Scooter D.
Newman, Harvey S.
Glaser, Evan R.
Cheng, Shu-Fan
Tadjer, Marko J.
Kub, Fritz J.
Eddy, Charles R., Jr.
TI Aerosol Deposition of Yttrium Iron Garnet for Fabrication of
Ferrite-Integrated On-Chip Inductors
SO IEEE TRANSACTIONS ON MAGNETICS
LA English
DT Article
DE Aerosol deposition (AD); monolithic microwave integrated circuit; radio
frequency integrated circuit (RFIC); room temperature deposition; thick
film; yttrium iron garnet
ID PULSED-LASER DEPOSITION; THIN-FILM INDUCTORS; LINEWIDTH MEASUREMENTS;
RESONANCE LINEWIDTH; MAGNETIC MATERIALS; YIG; FMR; SATURATION
AB We have employed aerosol deposition (AD) to deposit 39 mu m thick polycrystalline films of yttrium iron garnet at room temperature onto sapphire at a rate of 1-3 mu m/min as an initial investigation of utilizing AD for fabricating ferrite-integrated on-chip inductors. We characterize the structural and magnetic properties of the as-received starting powder, as-deposited film, and a pressed puck formed from the starting powder. Results show that the films are comprised of randomly oriented polycrystalline grains with structural and magnetic properties that closely resemble that of the starting powder. Results from coating a gold single-turn inductor show an increase in inductance of 79% up to similar to 300 MHz without affecting the Q-factor. These results demonstrate AD as a promising technique for depositing thick ferrite films at high deposition rates for low-temperature fabrication of ferrite-integrated on-chip inductors.
C1 [Johnson, Scooter D.; Newman, Harvey S.; Glaser, Evan R.; Cheng, Shu-Fan; Tadjer, Marko J.; Kub, Fritz J.; Eddy, Charles R., Jr.] US Naval Res Lab, Washington, DC 20375 USA.
RP Johnson, SD (reprint author), US Naval Res Lab, Washington, DC 20375 USA.
EM scooter.johnson.ctr@nrl.navy.mil
FU Office of Naval Research [N0001413WX20845]; American Association for
Engineering Education/Naval Research Laboratory (NRL)
FX This work was supported by the Office of Naval Research under Grant
N0001413WX20845 (Dr. Daniel Green, Program Manager). S. D. Johnson would
like to thank the American Association for Engineering Education/Naval
Research Laboratory (NRL) Post-Doctoral Fellowship Program, L. Boglione
for the discussions on microwave theory, K. Bussmann for insights on the
magnetic properties of materials, and R. Holm for his part in the design
and implementation of the NRL AD system.
NR 23
TC 5
Z9 5
U1 2
U2 10
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 MAY
PY 2015
VL 51
IS 5
AR 2200206
DI 10.1109/TMAG.2014.2369376
PG 6
WC Engineering, Electrical & Electronic; Physics, Applied
SC Engineering; Physics
GA CJ0XU
UT WOS:000355204800005
ER
PT J
AU Dimopoulos, A
Sicko, R
Kay, DE
Rigler, S
Fan, R
Romitti, P
Browne, M
Druschel, C
Caggana, M
Brody, L
Mills, JL
AF Dimopoulos, A.
Sicko, R.
Kay, D. E.
Rigler, S.
Fan, R.
Romitti, P.
Browne, M.
Druschel, C.
Caggana, M.
Brody, L.
Mills, J. L.
TI Copy Number Variants in a Population-Based Investigation of Hypoplastic
Right Heart Syndrome
SO BIRTH DEFECTS RESEARCH PART A-CLINICAL AND MOLECULAR TERATOLOGY
LA English
DT Meeting Abstract
C1 [Dimopoulos, A.; Fan, R.; Mills, J. L.] NICHD, Bethesda, MD USA.
[Sicko, R.; Kay, D. E.; Browne, M.; Druschel, C.; Caggana, M.] New York State Dept Hlth, Albany, NY USA.
[Rigler, S.] Naval Med Ctr Portsmouth, Portsmouth, VA USA.
[Romitti, P.] Univ Iowa, Iowa City, IA USA.
[Brody, L.] NHGRI, Bethesda, MD 20892 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 1542-0752
EI 1542-0760
J9 BIRTH DEFECTS RES A
JI Birth Defects Res. Part A-Clin. Mol. Teratol.
PD MAY
PY 2015
VL 103
IS 5
MA P11
BP 407
EP 407
PG 1
WC Developmental Biology; Toxicology
SC Developmental Biology; Toxicology
GA CI4SD
UT WOS:000354742400111
ER
PT J
AU Dimopoulos, A
Sicko, R
Kay, DE
Boghossian, N
Rigler, S
Hagen, EM
Fan, R
Romitti, P
Browne, M
Druschel, C
Caggana, M
Brody, L
Mills, JL
AF Dimopoulos, A.
Sicko, R.
Kay, D. E.
Boghossian, N.
Rigler, S.
Hagen, E. M.
Fan, R.
Romitti, P.
Browne, M.
Druschel, C.
Caggana, M.
Brody, L.
Mills, J. L.
TI Rare Copy Number Variants in a Population-Based Investigation of
Isolated Tracheoesophageal Fistula and Esophageal Atresia
SO BIRTH DEFECTS RESEARCH PART A-CLINICAL AND MOLECULAR TERATOLOGY
LA English
DT Meeting Abstract
C1 [Dimopoulos, A.; Hagen, E. M.; Fan, R.; Mills, J. L.] NICHD, Bethesda, MD USA.
[Sicko, R.; Kay, D. E.; Browne, M.; Druschel, C.; Caggana, M.] New York State Dept Hlth, Albany, NY USA.
[Boghossian, N.] Univ S Carolina, Columbia, SC 29208 USA.
[Rigler, S.] Naval Med Ctr Portsmouth, Portsmouth, VA USA.
[Romitti, P.] Univ Iowa, Iowa City, IA USA.
[Brody, L.] NHGRI, Bethesda, MD 20892 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 1542-0752
EI 1542-0760
J9 BIRTH DEFECTS RES A
JI Birth Defects Res. Part A-Clin. Mol. Teratol.
PD MAY
PY 2015
VL 103
IS 5
MA P12
BP 408
EP 408
PG 1
WC Developmental Biology; Toxicology
SC Developmental Biology; Toxicology
GA CI4SD
UT WOS:000354742400112
ER
PT J
AU Heinzen, SB
Hall, CE
Gopalarathnam, A
AF Heinzen, Stearns B.
Hall, Charles E., Jr.
Gopalarathnam, Ashok
TI Development and Testing of a Passive Variable-Pitch Propeller
SO JOURNAL OF AIRCRAFT
LA English
DT Article
AB A novel approach to passive propeller blade pitch variation is investigated. To effect passive pitch changes, the propeller blades are allowed to pivot freely about a radial axis, and aerodynamic pitching moments are tailored to give favorable blade pitch angles over a wide range of advance ratios. Computational modeling of the system indicated that a large expansion of the efficient operating envelope is possible, compared to a fixed-pitch propeller. Wind-tunnel experiments corroborated the computational results and demonstrated that the propeller maintained near-peak efficiency by passively adjusting blade pitch angles by over 15 deg to the match changing advance ratio. The passive variable-pitch propeller was then successfully demonstrated in flight on an unmanned aerial vehicle. Using tailored aerodynamics in place of active control allows this performance improvement to be realized at a fraction of the weight and complexity of a traditionally actuated variable-pitch propeller. The concept enables the benefits to be realized on platforms for which a traditional constant-speed variable-pitch propeller is not viable, such as on small general aviation aircraft or on unmanned platforms.
C1 [Heinzen, Stearns B.; Hall, Charles E., Jr.; Gopalarathnam, Ashok] N Carolina State Univ, Mech & Aerosp Engn, Raleigh, NC 27695 USA.
RP Heinzen, SB (reprint author), US Navy, Res Lab, Washington, DC 20375 USA.
EM stearns.heinzen@nrl.navy.mil
FU U.S. Air Force Research Laboratory
FX The lead author would like to thank the U.S. Air Force Research
Laboratory for their sponsorship during much of computational effort
presented in this work. We thank the reviewers and the Associate Editor
for their insightful comments, which have resulted in improvements to
the paper.
NR 22
TC 0
Z9 0
U1 1
U2 8
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 MAY-JUN
PY 2015
VL 52
IS 3
BP 748
EP 763
DI 10.2514/1.C032595
PG 16
WC Engineering, Aerospace
SC Engineering
GA CI4VH
UT WOS:000354751400003
ER
PT J
AU Kolel-Veetil, MK
Goswami, R
Fears, KP
Qadri, SB
Lambrakos, SG
Laskoski, M
Keller, TM
Saab, AP
AF Kolel-Veetil, Manoj K.
Goswami, Ramasis
Fears, Kenan P.
Qadri, Syed B.
Lambrakos, Samuel G.
Laskoski, Matthew
Keller, Teddy M.
Saab, Andrew P.
TI Formation and Stability of Metastable Tungsten Carbide Nanoparticles
SO JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
LA English
DT Article
DE alkyne; ethynyl; tungsten carbide; WC; W2C; core-shell
ID LOW-TEMPERATURE; METALS; ROUTE; FILMS
AB The low temperature transformation pathways of tungsten carbide formation in the nanoscale regime were investigated using a reactive carbon molecule and tungsten. WC core/W shell nanoparticles produced by the decomposition of metastable W2C were discovered using TEM. XRD studies revealed both the elemental and carbide phases of tungsten. It was observed that the metastable W2C phase can be stabilized at RT by carbon encapsulation. These findings open new avenues to access core-shell morphologies of refractory carbides and to stabilize W2C nanoparticles at RT.
C1 [Kolel-Veetil, Manoj K.; Fears, Kenan P.; Laskoski, Matthew; Keller, Teddy M.; Saab, Andrew P.] US Navy, Res Lab, Div Chem, Washington, DC 20375 USA.
[Goswami, Ramasis; Qadri, Syed B.; Lambrakos, Samuel G.] US Navy, Res Lab, Mat Sci & Technol Div, Washington, DC 20375 USA.
RP Kolel-Veetil, MK (reprint author), US Navy, Res Lab, Div Chem, Washington, DC 20375 USA.
EM manoj.kolel-veetil@nrl.navy.mil
FU Office of Naval Research (ONR)
FX The authors wish to acknowledge the Office of Naval Research (ONR) for
the financial support of this work.
NR 30
TC 1
Z9 1
U1 5
U2 25
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1059-9495
EI 1544-1024
J9 J MATER ENG PERFORM
JI J. Mater. Eng. Perform.
PD MAY
PY 2015
VL 24
IS 5
BP 2060
EP 2066
DI 10.1007/s11665-015-1476-3
PG 7
WC Materials Science, Multidisciplinary
SC Materials Science
GA CI6SM
UT WOS:000354891700030
ER
PT J
AU Colosi, JA
AF Colosi, John A.
TI A reformulation of the Lambda-Phi diagram for the prediction of ocean
acoustic fluctuation regimes
SO JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
LA English
DT Article
ID NORTH PACIFIC-OCEAN; MUTUAL COHERENCE FUNCTIONS; SOUND-SPEED
FLUCTUATIONS; BROAD-BAND TRANSMISSIONS; PATH-INTEGRAL TREATMENT;
PROPAGATION EXPERIMENT; RANDOM-MEDIA; AFAR MEASUREMENTS; INTERNAL WAVES;
PHILIPPINE SEA
AB The Lambda - Phi diagram was a tool introduced in the late 1970s to predict ocean acoustic fluctuation regimes termed unsaturated, partially saturated, and fully saturated, where internal wave sound speed fluctuations play a dominant role. The Lambda - Phi parameters reflect, respectively, the strength of diffraction and the root-mean-square phase fluctuation along a ray path. Oceanographic knowledge of the small scale part of the internal wave spectrum and high angle Fresnel zone formulations now allow a more stable and accurate calculation of these parameters. An empirical relation between the variance of log-intensity and Lambda - Phi provides a more accurate border between the unsaturated regime and stronger fluctuations. The diagram is consistent with six short range, deep water experiments in the Pacific, Atlantic, and Arctic oceans with frequencies ranging from 75 to 16 000 Hz. The utility of the Lambda - Phi diagram is that it provides one of the few means to inter-compare experiments at different geographic locations, and at different frequencies and ranges.
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
FX This work was supported by the Office of Naval Research.
NR 37
TC 0
Z9 0
U1 2
U2 8
PU ACOUSTICAL SOC AMER AMER INST PHYSICS
PI MELVILLE
PA STE 1 NO 1, 2 HUNTINGTON QUADRANGLE, MELVILLE, NY 11747-4502 USA
SN 0001-4966
EI 1520-8524
J9 J ACOUST SOC AM
JI J. Acoust. Soc. Am.
PD MAY
PY 2015
VL 137
IS 5
BP 2485
EP 2494
DI 10.1121/1.4916695
PG 10
WC Acoustics; Audiology & Speech-Language Pathology
SC Acoustics; Audiology & Speech-Language Pathology
GA CI7RU
UT WOS:000354962900006
PM 25994681
ER
PT J
AU Giorli, G
Au, WWL
Ou, H
Jarvis, S
Morrissey, R
Moretti, D
AF Giorli, Giacomo
Au, Whitlow W. L.
Ou, Hui
Jarvis, Susan
Morrissey, Ronald
Moretti, David
TI Acoustic detection of biosonar activity of deep diving odontocetes at
Josephine Seamount High Seas Marine Protected Area
SO JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
LA English
DT Article
ID WHALES PHYSETER-MACROCEPHALUS; BLAINVILLES BEAKED-WHALES; FINNED PILOT
WHALES; ECHOLOCATION CLICKS; SPERM-WHALES; TURSIOPS-TRUNCATUS;
DENSITY-ESTIMATION; HAWAIIAN-ISLANDS; BEHAVIOR; SENSORS
AB The temporal occurrence of deep diving cetaceans in the Josephine Seamount High Seas Marine Protected Area (JSHSMPA), south-west Portugal, was monitored using a passive acoustic recorder. The recorder was deployed on 13 May 2010 at a depth of 814m during the North Atlantic Treaty Organization Centre for Maritime Research and Experimentation cruise "Sirena10" and recovered on 6 June 2010. The recorder was programmed to record 40 s of data every 2 min. Acoustic data analysis, for the detection and classification of echolocation clicks, was performed using automatic detector/classification systems: M3R (Marine Mammal Monitoring on Navy Ranges), a custom MATLAB program, and an operator-supervised custom MATLAB program to assess the classification performance of the detector/classification systems. M3R CS-SVM algorithm contains templates to detect beaked whales, sperm whales, blackfish (pilot and false killer whales), and Risso's dolphins. The detections of each group of odontocetes was monitored as a function of time. Blackfish and Risso's dolphins were detected every day, while beaked whales and sperm whales were detected almost every day. The hourly distribution of detections reveals that blackfish and Risso's dolphins were more active at night, while beaked whales and sperm whales were more active during daylight hours. (C) 2015 Acoustical Society of America.
C1 [Giorli, Giacomo] Univ Hawaii, Dept Oceanog, Honolulu, HI 96822 USA.
[Giorli, Giacomo; Au, Whitlow W. L.; Ou, Hui] Univ Hawaii, Hawaii Inst Marine Biol, Kaneohe, HI 96734 USA.
[Jarvis, Susan; Morrissey, Ronald; Moretti, David] Naval Undersea Warfare Ctr, Newport, RI 02841 USA.
RP Giorli, G (reprint author), Univ Hawaii, Dept Oceanog, 1000 Pope Rd, Honolulu, HI 96822 USA.
EM wau@hawaii.edu
FU NATO CREM; Office of Naval Research
FX This study was possible thanks to NATO CREM funding support. We would
like to thank Jeff Haun, Luigi Troiano, Marco Carta, Arnold B-Nagy, and
Walter Zimmer at NATO CREM for their logistic support during the
Sirena10 cruise. This work was also supported by a grant from the Office
of Naval Research with Michael Weise as the program manager. We thank
Dr. Marc Lammers who assisted in introducing the use of EARs to NATO
CREM by flying and transporting an EAR to La Spezia, Italy, and Dr. Anna
Neuheimer for her suggestions about statistical tests. This is HIMB
contribution 1620 and SOEST contribution 9291.
NR 43
TC 3
Z9 3
U1 8
U2 34
PU ACOUSTICAL SOC AMER AMER INST PHYSICS
PI MELVILLE
PA STE 1 NO 1, 2 HUNTINGTON QUADRANGLE, MELVILLE, NY 11747-4502 USA
SN 0001-4966
EI 1520-8524
J9 J ACOUST SOC AM
JI J. Acoust. Soc. Am.
PD MAY
PY 2015
VL 137
IS 5
BP 2495
EP 2501
DI 10.1121/1.4919291
PG 7
WC Acoustics; Audiology & Speech-Language Pathology
SC Acoustics; Audiology & Speech-Language Pathology
GA CI7RU
UT WOS:000354962900007
PM 25994682
ER
PT J
AU Baggenstoss, PM
AF Baggenstoss, Paul M.
TI A multi-hypothesis tracker for clicking whales
SO JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
LA English
DT Article
ID TIME 3D TRACKING; SPERM-WHALES; HYDROPHONE ARRAY; BEAM PATTERN;
ECHO-ROBUST; LOCALIZATION; DIFFERENCE; ALGORITHM; ARRIVAL
AB This paper describes a tracker specially designed to track clicking beaked whales using widely spaced bottom-mounted hydrophones, although it can be adapted to different species and sensors. The input to the tracker is a sequence of static localization solutions obtained using time difference of arrival information at widely spaced hydrophones. To effectively handle input localizations with high ambiguity, the tracker is based on multi-hypothesis tracker concepts, so it considers all potential association hypotheses and keeps a large number of potential tracks in memory. The method is demonstrated on actual data and shown to successfully track multiple beaked whales at depth.
C1 Naval Undersea Warfare Ctr, Newport, RI 02841 USA.
RP Baggenstoss, PM (reprint author), Naval Undersea Warfare Ctr, Dept 1511,1176 Howell St, Newport, RI 02841 USA.
EM p.m.baggenstoss@ieee.org
FU Office of Naval Research
FX We would like to acknowledge the Office of Naval Research for funding
provided through the Advanced Detection, Classification, and
Localization program (ADCL) which supported this research.
NR 24
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
EI 1520-8524
J9 J ACOUST SOC AM
JI J. Acoust. Soc. Am.
PD MAY
PY 2015
VL 137
IS 5
BP 2552
EP 2562
DI 10.1121/1.4919370
PG 11
WC Acoustics; Audiology & Speech-Language Pathology
SC Acoustics; Audiology & Speech-Language Pathology
GA CI7RU
UT WOS:000354962900013
PM 25994688
ER
PT J
AU Hayward, TJ
AF Hayward, Thomas J.
TI Information-theoretic analysis of iterated Bayesian acoustic source
localization in a static ocean waveguide
SO JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
LA English
DT Article
ID ENVIRONMENT; FOCALIZATION; INVERSION; TRACKING
AB Fundamental constructs of information theory are applied to quantify the performance of iterated (sequential) Bayesian localization of a time-harmonic source in a range-and time-invariant acoustic waveguide using the segmented Fourier transforms of the received pressure time series. The nonlinear relation, defined by acoustic propagation, between the source location and the received narrowband spectral components is treated as a nonlinear communication channel. The performance analysis includes mismatch between the acoustic channel and the model channel on which the Bayesian inference is based. Source location uncertainty is quantified by the posterior probability density of source location, by the posterior entropy and associated uncertainty area, by the information gain (relative entropy) at each iteration, and by large-ensemble limits of these quantities. A computational example for a vertical receiver array in a shallow-water waveguide is presented with acoustic propagation represented by normal modes and ambient noise represented by a Kuperman-Ingenito model. Performance degradation due to noise-model mismatch is quantified in an example. Potential extensions to uncertain and stochastic environments are discussed.
C1 Naval Res Lab, Washington, DC 20375 USA.
RP Hayward, TJ (reprint author), Naval Res Lab, Washington, DC 20375 USA.
EM thomas.hayward@nrl.navy.mil
FU Office of Naval Research
FX The author acknowledges many original and insightful ideas of Richard
Pitre on the application of information theory to underwater acoustics.
This work was supported by the Office of Naval Research.
NR 24
TC 0
Z9 0
U1 1
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 MAY
PY 2015
VL 137
IS 5
BP 2758
EP 2772
DI 10.1121/1.4919294
PG 15
WC Acoustics; Audiology & Speech-Language Pathology
SC Acoustics; Audiology & Speech-Language Pathology
GA CI7RU
UT WOS:000354962900029
PM 25994704
ER
PT J
AU Raghukumar, K
Colosi, JA
AF Raghukumar, Kaustubha
Colosi, John A.
TI High-frequency normal-mode statistics in shallow water: The combined
effect of random surface and internal waves
SO JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
LA English
DT Article
ID SEA-SURFACE; ROUGH BOUNDARIES; TRANSPORT-THEORY; ENERGY-TRANSFER; RANDOM
OCEAN; SCATTERING; AMPLITUDES; PROPAGATION; COHERENCE; FLUCTUATIONS
AB In an earlier article, the statistical properties of mode propagation were studied at a frequency of 1 kHz in a shallow water environment with random sound-speed perturbations from linear internal waves, using a hybrid transport theory and Monte Carlo numerical simulations. Here, the analysis is extended to include the effects of random linear surface waves, in isolation and in combination with internal waves. Mode coupling rates for both surface and internal waves are found to be significant, but strongly dependent on mode number. Mode phase randomization by surface waves is found to be dominated by coupling effects, and therefore a full transport theory treatment of the range evolution of the cross mode coherence matrix is needed. The second-moment of mode amplitudes is calculated using transport theory, thereby providing the mean intensity while the fourth-moment is calculated using Monte Carlo simulations, which provides the scintillation index. The transport theory results for second-moment statistics are shown to closely reproduce Monte Carlo simulations. Both surface waves and internal waves strongly influence the acoustic field fluctuations. (C) 2015 Acoustical Society of America.
C1 [Raghukumar, Kaustubha; Colosi, John A.] Naval Postgrad Sch, Dept Oceanog, Monterey, CA 93943 USA.
RP Raghukumar, K (reprint author), Naval Postgrad Sch, Dept Oceanog, Monterey, CA 93943 USA.
EM kraghuku@nps.edu
FU Office of Naval Research; National Academy of Sciences through the
National Research Council
FX This work was supported by the Office of Naval Research. K.R. is
grateful to the National Academy of Sciences for support through the
National Research Council research associateship program. The authors
thank Frank Henyey at the Applied Physics Laboratory, University of
Washington, for several useful discussions and his assistance with the
Monte Carlo simulations.
NR 31
TC 0
Z9 0
U1 3
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 MAY
PY 2015
VL 137
IS 5
BP 2950
EP 2961
DI 10.1121/1.4919358
PG 12
WC Acoustics; Audiology & Speech-Language Pathology
SC Acoustics; Audiology & Speech-Language Pathology
GA CI7RU
UT WOS:000354962900046
PM 25994721
ER
PT J
AU Myers, SH
Huhman, BM
AF Myers, Seth H.
Huhman, Brett M.
TI Enabling Scientific Collaboration and Discovery Through the Use of Data
Standardization
SO IEEE TRANSACTIONS ON PLASMA SCIENCE
LA English
DT Article
DE Data management; data models; railguns; standardization
AB The Railgun Data Format Standard (RDFS) provides a flexible format for the archival of electromagnetic railgun (EMRG) laboratory test data. This effort utilizes the hierarchical data format version 5 for the data model and file format, as well as extensible markup language for data structure and data type encapsulation. The RDFS was developed through a collaborative effort within the Office of Naval Research (ONR) EMRG program, including members from the Naval Surface Warfare Center Dahlgren, the Naval Research Laboratory, and the Institute for Advanced Technology. The intent behind the RDFS is to facilitate collaborative data sharing among EMRG researchers through the standardization of EMRG test data archives. The structure of the RDFS is discussed, along with details on its implementation and use within the ONR EMRG community.
C1 [Myers, Seth H.] Naval Surface Warfare Ctr, Dahlgren Div, Dahlgren, VA 22448 USA.
[Huhman, Brett M.] US Naval Res Lab, Washington, DC 20375 USA.
RP Myers, SH (reprint author), Naval Surface Warfare Ctr, Dahlgren Div, Dahlgren, VA 22448 USA.
EM seth.h.myers@navy.mil; brett.huhman@nrl.navy.mil
FU Office of Naval Research, Arlington, VA, USA
FX This work was supported by the Office of Naval Research, Arlington, VA,
USA.
NR 12
TC 0
Z9 0
U1 0
U2 1
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 MAY
PY 2015
VL 43
IS 5
SI SI
BP 1190
EP 1193
DI 10.1109/TPS.2015.2405256
PN 1
PG 4
WC Physics, Fluids & Plasmas
SC Physics
GA CH9PT
UT WOS:000354368900015
ER
PT J
AU Engel, TG
Timpson, EJ
Veracka, MJ
AF Engel, Thomas G.
Timpson, Erik J.
Veracka, Michael J.
TI Demonstration of a Reversible Helical Electromagnetic Launcher and Its
Use as an Electronically Programmable Mechanical Shock Tester
SO IEEE TRANSACTIONS ON PLASMA SCIENCE
LA English
DT Article
DE Coilguns; electromagnetic launching; linear motors; railguns
ID RAILGUN; EFFICIENCY; SPACE
AB A reversible helical electromagnetic launcher (R-HEML) that is able to accelerate and decelerate a projectile is presented and discussed. The R-HEML in this paper has a hollow-projectile geometry and has a barrel length of 750 mm and a bore diameter of 40 mm. The R-HEML is powered by a three-module sequentially fired capacitive pulse-forming network that has a total energy storage of 1 MJ. The projectile mass is typically on the order of 700 g. The largest measured acceleration is 8000 m/s(2), and the largest measured deceleration is 15 000 m/s(2). Pulselengths for the acceleration and deceleration pulses varied from 5 to 14.5 ms. A modified version of the R-HEML is constructed and used in an industrial setting to generate high-g shock and vibration pulses to characterize materials and devices. Utilization of the R-HEML in this manner is one of the first industrial applications of an electromagnetic launcher.
C1 [Engel, Thomas G.] Univ Missouri, Dept Elect & Comp Engn, Columbia, MO 65211 USA.
[Timpson, Erik J.] Honeywell Fed Mfg & Technol, Kansas City, MO 64147 USA.
[Veracka, Michael J.] US Naval Res Lab, Washington, DC 20375 USA.
RP Engel, TG (reprint author), Univ Missouri, Dept Elect & Comp Engn, Columbia, MO 65211 USA.
EM engelt@missouri.edu; etimpson@kcp.com; michael.veracka@nrl.navy.mil
FU U.S. Naval Research Laboratory, Washington, DC, USA [N00173-02-C-2012];
National Nuclear Security Agency Kansas City Plant, Honeywell Federal
Manufacturing and Technologies, Kansas City, MO, USA under U.S.
Department of Energy [DE-NA-0000622]
FX This work was supported in part by the U.S. Naval Research Laboratory,
Washington, DC, USA, under Contract N00173-02-C-2012 and in part by the
National Nuclear Security Agency Kansas City Plant, Honeywell Federal
Manufacturing and Technologies, Kansas City, MO, USA, under Contract
DE-NA-0000622 through the U.S. Department of Energy.
NR 13
TC 4
Z9 4
U1 0
U2 5
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 MAY
PY 2015
VL 43
IS 5
SI SI
BP 1266
EP 1270
DI 10.1109/TPS.2015.2417056
PN 1
PG 5
WC Physics, Fluids & Plasmas
SC Physics
GA CH9PT
UT WOS:000354368900029
ER
PT J
AU Engel, TG
Veracka, MJ
AF Engel, Thomas G.
Veracka, Michael J.
TI The Voltage-Current Scaling Relationship and Impedance of DC
Electromagnetic Launchers
SO IEEE TRANSACTIONS ON PLASMA SCIENCE
LA English
DT Article
DE Coilguns; electromagnetic launching; linear motors; railguns
ID RAILGUN; EFFICIENCY
AB Electromagnetic launchers (EMLs) including railguns, helical guns, and coilguns have been proposed for numerous applications. However, the scaling characteristics of EMLs are unknown. This paper examines the nonlinear operating characteristics of EMLs and derives the operating voltage and current scaling relationships as determined by the mass and velocity of the projectile and the length of the launcher. The scaling relationship is derived using the kinetic power relationship common to all types of EMLs. The scaling relationship is expressed as a simple function of the projectile velocity, projectile mass, and launcher length. This paper also defines the impedance of an EML. The accuracy of the scaling relationship and the EML impedance are verified in a comparison with the experimental results of practical EMLs. The effects of resistive losses and inductive energy storage on the scaling relationship are included in the analysis.
C1 [Engel, Thomas G.] Univ Missouri, Dept Elect & Comp Engn, Columbia, MO 65211 USA.
[Veracka, Michael J.] US Naval Res Lab, Washington, DC 20375 USA.
RP Engel, TG (reprint author), Univ Missouri, Dept Elect & Comp Engn, Columbia, MO 65211 USA.
EM engelt@missouri.edu; veracka@nrl.navy.mil
NR 15
TC 3
Z9 3
U1 2
U2 7
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 MAY
PY 2015
VL 43
IS 5
SI SI
BP 1271
EP 1276
DI 10.1109/TPS.2015.2418053
PN 1
PG 6
WC Physics, Fluids & Plasmas
SC Physics
GA CH9PT
UT WOS:000354368900030
ER
PT J
AU Douglass, SR
Reid, RR
Meger, RA
Neri, JM
Cairns, RL
Carney, C
Huhman, BM
AF Douglass, Scott R.
Reid, Remington R.
Meger, Robert A.
Neri, Jesse M.
Cairns, Richard L., III
Carney, Carl
Huhman, Brett M.
TI Diagnostics for Kinematics on MTF at NRL
SO IEEE TRANSACTIONS ON PLASMA SCIENCE
LA English
DT Article
DE Acceleration; B-dots; flux ladder; flux loop; kinematics; position;
railgun diagnostics; velocity
ID RAILGUNS
AB The Material Test Facility (MTF) houses a medium-caliber electromagnetic (EM) railgun that is designed for ease of access. As such, it is ideal for developing diagnostics for measuring the performance of EM launchers. Multiple in situ diagnostics have been fielded on the MTF railgun including field sensors for position location and thermal sensors. Kinematics of the launch package are of particular interest. B-dot loops are the usual method, but many such B-dots are required to obtain a detailed evolution of position and velocity. This requires many channels and consumes data acquisition resources. Naval Research Lab (NRL) has developed several versions of a flux ladder diagnostic, which include many pick-up loops on one data channel. Some versions have multiple flux ladders interleaved to maintain pulse separation in a single channel, but which increase the overall spatial resolution. A typical MTF configuration has 58 positions monitored in just three channels. Careful processing has yielded velocity and even acceleration. NRL is also developing a flux loop diagnostic that has the potential for continuous kinematics with the time resolution of the digital sampling rate. However, flux loops are more sensitive to spurious signal sources. Preliminary flux loop results are presented.
C1 [Douglass, Scott R.; Meger, Robert A.; Neri, Jesse M.; Carney, Carl; Huhman, Brett M.] US Naval Res Lab, Washington, DC 20375 USA.
[Reid, Remington R.; Cairns, Richard L., III] Sotera Def Solut, Columbia, MD 21046 USA.
RP Douglass, SR (reprint author), US Naval Res Lab, Washington, DC 20375 USA.
EM scott.douglass@nrl.navy.mil; remington.reid.ctr@nrl.navy.mil;
robert.meger@nrl.navy.mil; jesse.neri@nrl.navy.mil;
richard.cairns.ctr@nrl.navy.mil; carl.carney@nrl.navy.mil;
brett.huhman@nrl.navy.mil
FU Office of Naval Research, Arlington, VA, USA; Naval Research Laboratory
Base Program
FX This work was supported in part by the Office of Naval Research,
Arlington, VA, USA, and in part by the Naval Research Laboratory Base
Program.
NR 10
TC 0
Z9 0
U1 1
U2 2
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0093-3813
EI 1939-9375
J9 IEEE T PLASMA SCI
JI IEEE Trans. Plasma Sci.
PD MAY
PY 2015
VL 43
IS 5
SI SI
BP 1293
EP 1301
DI 10.1109/TPS.2015.2404797
PN 1
PG 9
WC Physics, Fluids & Plasmas
SC Physics
GA CH9PT
UT WOS:000354368900034
ER
PT J
AU Hoffman, RB
Haran, TL
James, JC
Vaughan, RB
Lamb, CW
Meraz, N
AF Hoffman, Ryan B.
Haran, Terence L.
James, Jonathan Christopher
Vaughan, R. Brandon
Lamb, Cody W.
Meraz, Nathan
TI In Situ Measurement of Strain and Temperature for Railgun Launcher
Diagnostics
SO IEEE TRANSACTIONS ON PLASMA SCIENCE
LA English
DT Article
DE Optical fiber sensors; railguns; strain measurement; temperature
measurement
ID THERMOMETRY
AB The challenging physical environment associated with electromagnetic launchers (EMLs) makes reliable in situ measurements of physical parameters particularly difficult. The resulting lack of data hinders the validation of simulation codes that are used to support the design of new EMLs. As a result, there have been substantial efforts to develop new instrumentation that is compatible with the harsh environment of an EML. This paper will describe recent developments from Georgia Tech and U.S. Navy research to improve instrumentation capabilities for temperature and strain.
C1 [Hoffman, Ryan B.] Off Naval Res, Arlington, VA 22217 USA.
[Haran, Terence L.; James, Jonathan Christopher; Vaughan, R. Brandon; Lamb, Cody W.; Meraz, Nathan] Georgia Tech Res Inst, Atlanta, GA 30332 USA.
RP Hoffman, RB (reprint author), Off Naval Res, Arlington, VA 22217 USA.
EM ryan.hoffman@navy.mil; terence.haran@gtri.gatech.edu
FU Office of Naval Research [HC1047-05-D-4000]
FX This work was supported by the Office of Naval Research under Contract
HC1047-05-D-4000.
NR 7
TC 0
Z9 0
U1 0
U2 1
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 MAY
PY 2015
VL 43
IS 5
SI SI
BP 1302
EP 1309
DI 10.1109/TPS.2014.2383612
PN 1
PG 8
WC Physics, Fluids & Plasmas
SC Physics
GA CH9PT
UT WOS:000354368900035
ER
PT J
AU Cohen, IJ
Wetz, DA
Heinzel, JM
Dong, Q
AF Cohen, Isaac Jacob
Wetz, David Alan, Jr.
Heinzel, John M.
Dong, Qing
TI Design and Characterization of an Actively Controlled Hybrid Energy
Storage Module for High-Rate Directed Energy Applications
SO IEEE TRANSACTIONS ON PLASMA SCIENCE
LA English
DT Article
DE Energy storage; lithium batteries; supercapacitors; power electronics
AB There is considerable need for a mobile, reliable, efficient, and compact prime power supply for a host of applications, including directed energy and electrical grid backup among others. Electrochemical energy storage devices, which possess either high-power density or high-energy density, have been developed recently and are very applicable for use in these applications. The need for both high energy and high power, however, makes the design and implementation of such a prime power supply a nontrivial task. While lithium-ion batteries (LIBs) are available, which possess both high power and energy density, operation at high power reduces their cycle life, decreasing the reliability and increasing the cost of the system when replacement becomes necessary more frequently. One proposed method involves optimally combining high-energy batteries with high-power electric double layer capacitors (EDLCs) using actively controlled power electronics to regulate the current to and from each respective device. In such a scheme, energy can be slowly sourced to and from the batteries, while the capacitors are used to supply or accept the bulk of the current when the demand is high, especially during fast transients. This type of scheme should not only maximize the batteries' cycle life and ensure that both the energy and power required of the load(s) is always available, but will also increase the instantaneous power capabilities of the system, offering a well-rounded solution to sourcing steady and/or transient loads. When augmenting a fossil fuel generator with a hybrid energy storage module (HESM), the HESM has the ability to act as a high-energy reservoir that can harvest energy from the generator when the loads are in short periods of inactivity. This enables the generator to be continuously base loaded, thereby maintaining a high level of efficiency at all times, while theoretically maintaining the required power quality of the main ac bus. At the University of Texas at Arlington (UTA), an actively controlled, high-rate HESM has been constructed to evaluate its performance under the typical load condition presented by directed energy weapons. It has been assembled using LIBs, EDLCs, and commercial off-the-shelf power electronic converters. A discussion about the future of HESMs, the experimental setup at UTA, and the results obtained thus far will be presented here.
C1 [Cohen, Isaac Jacob; Wetz, David Alan, Jr.] Univ Texas Arlington, Dept Elect Engn, Arlington, TX 76019 USA.
[Heinzel, John M.; Dong, Qing] Naval Surface Warfare Ctr, Carderock Div, Philadelphia, PA 19112 USA.
RP Cohen, IJ (reprint author), Univ Texas Arlington, Dept Elect Engn, Arlington, TX 76019 USA.
EM isaac.cohen@mavs.uta.edu; wetz@uta.edu; john.heinzel@navy.mil;
qing.dong@navy.mil
FU U.S. Office of Naval Research, Arlington, VA, USA [N00014-11-1-0659,
N00014-14-1-0267]
FX This work was supported by the U.S. Office of Naval Research, Arlington,
VA, USA, under Contract N00014-11-1-0659 and Contract N00014-14-1-0267.
NR 17
TC 1
Z9 1
U1 2
U2 6
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0093-3813
EI 1939-9375
J9 IEEE T PLASMA SCI
JI IEEE Trans. Plasma Sci.
PD MAY
PY 2015
VL 43
IS 5
SI SI
BP 1427
EP 1433
DI 10.1109/TPS.2014.2370053
PN 1
PG 7
WC Physics, Fluids & Plasmas
SC Physics
GA CH9PT
UT WOS:000354368900056
ER
PT J
AU Wetz, DA
Shrestha, B
Donahue, ST
Wong, DN
Martin, MJ
Heinzel, J
AF Wetz, David Alan
Shrestha, Biju
Donahue, Simon T.
Wong, Derek Nathan
Martin, Matthew Jene
Heinzel, John
TI Capacity Fade of 26650 Lithium-Ion Phosphate Batteries Considered for
Use Within a Pulsed-Power System's Prime Power Supply
SO IEEE TRANSACTIONS ON PLASMA SCIENCE
LA English
DT Article
DE Batteries; electrochemical devices; energy storage; pulse power systems
ID AGING MECHANISMS; CYCLE-LIFE; CELLS; DEGRADATION
AB There is considerable need for a mobile, reliable, efficient, and compact prime power supply for use in a host of directed energy applications. Recent improvements in the energy and power density of electrochemical lithium-ion batteries have made them a very viable option for these types of applications where fast and rep-rate operation is of interest. Despite the proven ability of lithium-ion batteries to source high currents, it is still unclear how they age when they are used to repeatedly source high-rate currents in a pulsed manner, as they must when used in a repetitive rate prime power supply. Similarly, it is unclear how elevated rate recharge affects the life of the battery. Research has been performed at University of Texas at Arlington in which high-power, 2.6 Ah lithium-ion batteries have been repeatedly discharged and recharged at high pulsed rates. This paper will discuss the potential of lithium-ion batteries for use in these applications and will present experimental results performed when two 2.6 Ah cells were both discharged at 28 A (10.8C) and recharged at 9 A (3.5C) to 2.5 and 2.0 V, respectively.
C1 [Wetz, David Alan; Shrestha, Biju; Donahue, Simon T.; Martin, Matthew Jene] Univ Texas Arlington, Dept Elect Engn, Arlington, TX 76019 USA.
[Wong, Derek Nathan] Univ Texas Arlington, Dept Mat Sci & Engn, Arlington, TX 76019 USA.
[Heinzel, John] Naval Surface Warfare Ctr, Carderock Div, Philadelphia, PA 19112 USA.
RP Wetz, DA (reprint author), Univ Texas Arlington, Dept Elect Engn, Arlington, TX 76019 USA.
EM wetz@uta.edu; biju.shrestha@mavs.uta.edu; simon.donahue@mavs.uta.edu;
matthewm@uta.edu; derek.wong@mavs.uta.edu; john.heinzel@navy.mil
FU ONR
FX The authors would like to thank ONR for their continued support. The
authors also would like to thank J. Hanhart and B. Depoy of the UT
Arlington Physics Machine Shop. Without their time and support in
getting the experimental setups constructed, this paper would only be
thoughts on paper. Any opinions, findings, and conclusions or
recommendations expressed in this publication are those of the authors
and do not necessarily reflect the views of the US Office of Naval
Research.
NR 21
TC 1
Z9 1
U1 5
U2 13
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 MAY
PY 2015
VL 43
IS 5
SI SI
BP 1448
EP 1455
DI 10.1109/TPS.2015.2403301
PN 1
PG 8
WC Physics, Fluids & Plasmas
SC Physics
GA CH9PT
UT WOS:000354368900059
ER
PT J
AU Michopoulos, JG
Young, M
Iliopoulos, A
AF Michopoulos, John G.
Young, Marcus
Iliopoulos, Athanasios
TI A Multiphysics Theory for the Static Contact of Deformable Conductors
With Fractal Rough Surfaces
SO IEEE TRANSACTIONS ON PLASMA SCIENCE
LA English
DT Article
DE Conductors; contact resistance; current; electric potential;
electromechanical systems; finite element analysis; fractals; numerical
analysis; rough surfaces; surface roughness; temperature; temperature
dependence; thermal conductivity; thermal expansion; thermal stresses;
thermoelasticity; thermoelectricity
ID INTERFACIAL TEMPERATURE DISTRIBUTION; WEIERSTRASS-MANDELBROT FUNCTION;
SLOW SLIDING REGIME; RESISTANCE; MODEL
AB In this paper, we present a multifield and multiscale theory leading to derivations of electric and thermal conductivities for the interface between two rough surfaces in contact, activated by mechanical load and electric current pulses. At the macroscale, the proposed approach involves multifield coupling of conduction and induction currents, with heat conduction induced by joule heating. The structural mechanics of the conducting materials are also considered. At the mesoscale and microscale, the theory contains a Weierstrass-Mandelbrot description of the rough contact surface profilometry and an asperity-based comprehensive model, respectively. They are both combined to derive homogenized macroscale properties for the interface boundary. The mechanical pressure and the repulsion effect from electric current through the microcontacts are accounted for as well. The results of the numerical analysis illustrate the dependence of the derived properties on the surface characteristics, external load, and electric current. Finally, the entire framework is applied to an actual conductor configuration of hollow cylinders under compression and a high current pulse to demonstrate the feasibility of the entire approach. In addition to providing typical simulation results for all selected fields present during the experiment, we also provide a comparison between the experimentally acquired resistance and the numerically derived resistance to validate the contact theory.
C1 [Michopoulos, John G.; Iliopoulos, Athanasios] US Naval Res Lab, Ctr Computat Mat Sci, Computat Multiphys Syst Lab, Washington, DC 20375 USA.
[Young, Marcus] US Naval Res Lab, Ctr Computat Mat Sci, Washington, DC 20375 USA.
[Iliopoulos, Athanasios] George Mason Univ, Fairfax, VA 22030 USA.
RP Michopoulos, JG (reprint author), US Naval Res Lab, Ctr Computat Mat Sci, Computat Multiphys Syst Lab, Washington, DC 20375 USA.
EM john.michopoulos@nrl.navy.mil; marcus.m.young@navy.mil;
athana-sios.iliopoulos.ctr.gr@nrl.navy.mil
RI Michopoulos, John/D-6704-2016
OI Michopoulos, John/0000-0001-7004-6838
FU Naval Research Laboratory, Washington, DC, USA
FX This work was supported by the Naval Research Laboratory, Washington,
DC, USA, under Grant 6.1 core funding.
NR 30
TC 2
Z9 2
U1 3
U2 13
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 MAY
PY 2015
VL 43
IS 5
SI SI
BP 1597
EP 1610
DI 10.1109/TPS.2015.2416980
PN 1
PG 14
WC Physics, Fluids & Plasmas
SC Physics
GA CH9PT
UT WOS:000354368900083
ER
PT J
AU Bankert, RL
Solbrig, JE
AF Bankert, Richard L.
Solbrig, Jeremy E.
TI Cluster Analysis of A-Train Data: Approximating the Vertical Cloud
Structure of Oceanic Cloud Regimes
SO JOURNAL OF APPLIED METEOROLOGY AND CLIMATOLOGY
LA English
DT Article
DE Clouds; Data mining; Satellite observations; Classification
ID SATELLITE-OBSERVATIONS; IDENTIFICATION
AB Moderate Resolution Imaging Spectroradiometer (MODIS) data continue to provide a wealth of two-dimensional, cloud-top information and derived environmental products. In addition, the A-Train constellation of satellites presents an opportunity to combine MODIS data with coincident vertical-profile data collected from sensors on CloudSat and Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO). Approximating the vertical structure of clouds in data-sparse regions can be accomplished through a two-step process that consists of cluster analysis of MODIS data and quantitative analysis of coincident vertical-profile data. Daytime data over the eastern North Pacific Ocean are used in this study for both the summer (June-August) and winter (December-February) seasons in separate cluster analyses. A-Train data from 2006 to 2009 are collected, and a K-means cluster analysis is applied to selected MODIS data that are coincident with single-layer clouds found in the CloudSat/CALIPSO (GEOPROF-lidar) data. The resultant clusters, 16 in both summer and winter, are quantified in terms of average cloud-base height, cloud-top height, and normalized cloud water content profile. A cluster and its quantified characteristics can then be assigned to a given pixel in near real-time MODIS data, regardless of its proximity to the observed vertical-profile data. When applied to a two-dimensional MODIS dataset, these assigned clusters can provide an approximate three-dimensional representation of the cloud scene.
C1 [Bankert, Richard L.; Solbrig, Jeremy E.] Naval Res Lab, Monterey, CA 93943 USA.
RP Bankert, RL (reprint author), Naval Res Lab, 7 Grace Hopper Ave, Monterey, CA 93943 USA.
EM rich.bankert@nrlmry.navy.mil
FU Office of Naval Research under Program Element [0602435N]
FX The support of the research sponsor, the Office of Naval Research under
Program Element 0602435N, is greatly appreciated.
NR 19
TC 1
Z9 1
U1 1
U2 10
PU AMER METEOROLOGICAL SOC
PI BOSTON
PA 45 BEACON ST, BOSTON, MA 02108-3693 USA
SN 1558-8424
EI 1558-8432
J9 J APPL METEOROL CLIM
JI J. Appl. Meteorol. Climatol.
PD MAY
PY 2015
VL 54
IS 5
BP 996
EP 1008
DI 10.1175/JAMC-D-14-0227.1
PG 13
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA CI2FI
UT WOS:000354560200006
ER
PT J
AU Wolfe, T
Lee, YT
Slipper, ME
AF Wolfe, Tristan
Lee, Yu-Tai
Slipper, Michael E.
TI A Performance Prediction Model for Low-Speed Centrifugal Fans
SO JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME
LA English
DT Article
ID COMPRESSORS
AB A generalized model for mapping the trend of the performance characteristics of a double-discharge centrifugal fan is developed based on the work by Casey and Robinson (C&R), which formulated compressor performance maps for tip-speed Mach numbers ranging from 0.4 to 2 using test data obtained from turbochargers with vaneless diffusers. The current paper focuses on low-speed applications for Mach number below 0.4. The C&R model uses four nondimensional parameters at the design condition including the flow coefficient, the work input coefficient, the tip-speed Mach number, and the polytropic efficiency, in developing a prediction model that requires limited geometrical knowledge of the centrifugal turbomachine. For the low-speed fan case, the C&R formulas are further extended to a low-speed, incompressible analysis. The effort described in this paper begins by comparing generalized results using efficiency data obtained from a series of fan measurements to that using the C&R model. For the efficiency map, the C&R model is found to heavily depend on the ratio of the flow coefficient at peak efficiency to that at the choke flow condition. Since choke flow is generally not applicable in the low-speed centrifugal fan operational environment, an alternate, but accurate estimation method based on fan free delivery derived from the fan test data is presented. Using this new estimation procedure, the modified C&R model predicts reasonably well using the double-discharge centrifugal fan data for high-flow coefficients, but fails to correlate with the data for low-flow coefficients. To address this undesirable characteristic, additional modifications to the C&R model are also presented for the fan application at low flow conditions. A Reynolds number correction is implemented in the work input prediction of the C&R model to account for low-speed test conditions. The new model provides reasonable prediction with the current fan data in both work input and pressure rise coefficients. Along with the developments for the efficiency and work input coefficient maps, the use of fan shut-off and free delivery conditions are also discussed for low-speed applications.
C1 [Wolfe, Tristan; Slipper, Michael E.] Naval Surface Warfare Ctr, Carderock Div, Ships Syst Engn Stn, Philadelphia, PA 19112 USA.
[Lee, Yu-Tai] Naval Surface Warfare Ctr, Carderock Div, West Bethesda, MD 20817 USA.
RP Wolfe, T (reprint author), Naval Surface Warfare Ctr, Carderock Div, Ships Syst Engn Stn, Philadelphia, PA 19112 USA.
EM tristan.wolfe@navy.mil; yu.lee@navy.mil; michael.slipper@navy.mil
FU Applied Research Program of the Office of Naval Research under an IAR
Program; Naval Acquisition Intern Program (NAIP)
FX The fan test data were collected under the support of the Office of
Naval Research, Code 331's Seabase-to-Shore FNC Program. The ONR Program
Manager was Dr. Ki-Han Kim. The developed model and preparation of the
current paper were supported by the Applied Research Program of the
Office of Naval Research administered at the Naval Surface Warfare
Center, Carderock Division under an IAR Program. While working on the
modeling for this paper, the first author was initially under the
support of the Naval Acquisition Intern Program (NAIP).
NR 17
TC 1
Z9 1
U1 3
U2 17
PU ASME
PI NEW YORK
PA TWO PARK AVE, NEW YORK, NY 10016-5990 USA
SN 0098-2202
EI 1528-901X
J9 J FLUID ENG-T ASME
JI J. Fluids Eng.-Trans. ASME
PD MAY
PY 2015
VL 137
IS 5
AR 051106
DI 10.1115/1.4029397
PG 9
WC Engineering, Mechanical
SC Engineering
GA CH3XX
UT WOS:000353965600006
ER
PT J
AU Goel, AK
Zhang, GB
Wiltgen, B
Zhang, YQ
Vattam, S
Yen, J
AF Goel, Ashok K.
Zhang, Gongbo
Wiltgen, Bryan
Zhang, Yuqi
Vattam, Swaroop
Yen, Jeannette
TI On the benefits of digital libraries of case studies of analogical
design: Documentation, access, analysis, and learning
SO AI EDAM-ARTIFICIAL INTELLIGENCE FOR ENGINEERING DESIGN ANALYSIS AND
MANUFACTURING
LA English
DT Article
DE Analogical Design; Biologically Inspired Design; Biomimetics;
Biomimicry; Case-Based Design; Design by Analogy; Design Education;
Digital Library
ID BIOMIMETICS; INNOVATION; CREATIVITY
AB Digital libraries of case studies of analogical design have been popular since their advent in the early 1990s. We consider four benefits of digital libraries of case studies of analogical design in the context of biologically inspired design. First, a digital library affords documentation. The 83 case studies in our work come from 8 years of extended, collaborative design projects in an interdisciplinary class on biologically inspired design. Second, a digital library provides on-demand access to the case studies. We describe a web-based library of case studies of biologically inspired design called the Design Study Library (DSL). Third, a compilation of case studies supports analyses of broader patterns and trends. As an example, an analysis of DSL's case studies found that environmental sustainability was a major factor in about a third of the case studies and an explicit design goal in about a fourth. Fourth, a digital library of case studies can support analogical learning. Preliminary results from an exploratory study indicate that DSL may support novice learning about the processes of biologically inspired design.
C1 [Goel, Ashok K.; Zhang, Gongbo; Wiltgen, Bryan; Zhang, Yuqi; Vattam, Swaroop] Georgia Inst Technol, Sch Interact Comp, Design & Intelligence Lab, Atlanta, GA 30332 USA.
[Goel, Ashok K.; Yen, Jeannette] Georgia Inst Technol, Ctr Biol Inspired Design, Atlanta, GA 30332 USA.
[Vattam, Swaroop] Naval Res Lab, Washington, DC 20375 USA.
RP Goel, AK (reprint author), Georgia Inst Technol, Sch Interact Comp, Technol Sq Res Bldg,85 Fifth St NW, Atlanta, GA 30332 USA.
EM goel@cc.gatech.edu
FU US National Science Foundation [0855916]; TUES Grant [1022778]
FX We are grateful to the instructors and students of the Georgia Tech
ME/ISyE/MSE/BME/BIOL 4740 class from 2006 through 2013. We thank the US
National Science Foundation for its support of this research through a
CreativeIT Grant (0855916) and a TUES Grant (1022778). This work has
benefited from discussions with our colleagues at Georgia Tech's Design
& Intelligence Laboratory and Center for Biologically Inspired Design,
especially Titilayo Craig, Michael Helms, and Spencer Rugaber. We note
that this paper is a substantial revision and expansion of Goel, Zhang,
et al. (2014) and that Section 4 revises and extends a similar analysis
in Goel et al. (2011). Finally, we thank the three anonymous reviewers
of earlier drafts of this paper: their detailed critiques significantly
helped improve the quality of the paper.
NR 64
TC 0
Z9 0
U1 2
U2 5
PU CAMBRIDGE UNIV PRESS
PI NEW YORK
PA 32 AVENUE OF THE AMERICAS, NEW YORK, NY 10013-2473 USA
SN 0890-0604
EI 1469-1760
J9 AI EDAM
JI AI EDAM-Artif. Intell. Eng. Des. Anal. Manuf.
PD MAY
PY 2015
VL 29
IS 2
SI SI
BP 215
EP 227
DI 10.1017/S0890060415000086
PG 13
WC Computer Science, Artificial Intelligence; Computer Science,
Interdisciplinary Applications; Engineering, Multidisciplinary;
Engineering, Manufacturing
SC Computer Science; Engineering
GA CH4VW
UT WOS:000354032400008
ER
PT J
AU Landoni, M
Massaro, F
Paggi, A
D'Abrusco, R
Milisavljevic, D
Masetti, N
Smith, HA
Tosti, G
Chomiuk, L
Strader, J
Cheung, CC
AF Landoni, M.
Massaro, F.
Paggi, A.
D'Abrusco, R.
Milisavljevic, D.
Masetti, N.
Smith, H. A.
Tosti, G.
Chomiuk, L.
Strader, J.
Cheung, C. C.
TI OPTICAL SPECTROSCOPIC OBSERVATIONS OF gamma-RAY BLAZAR CANDIDATES. III.
THE 2013/2014 CAMPAIGN IN THE SOUTHERN HEMISPHERE
SO ASTRONOMICAL JOURNAL
LA English
DT Article
DE BL Lacertae objects: general; galaxies: active; radiation mechanisms:
non-thermal
ID LARGE-AREA TELESCOPE; ACTIVE GALACTIC NUCLEI; BL LACERTAE OBJECTS;
ALL-SKY SURVEY; FERMI UNASSOCIATED SOURCES; POINT-SOURCE CATALOG; RADIO
PROPERTIES; DATA RELEASE; SAMPLE; COUNTERPARTS
AB We report the results of our exploratory program carried out with the southern Astrophysical Research telescope aimed at associating counterparts and establishing the nature of the Fermi Unidentified gamma-ray Sources (UGSs). We selected the optical counterparts of six UGSs from the Fermi catalog on the basis of our recently discovered tight connection between infrared and gamma-ray emission found for the gamma-ray blazars detected by the Wide-Field Infrared Survey Explorer in its all-sky survey. We perform for the first time a spectroscopic study of the low-energy counterparts of the Fermi UGSs, in the optical band, confirming the blazar-like nature of the whole sample. We also present new spectroscopic observations of six active galaxies of uncertain type associated with Fermi sources which appear to be BL Lac objects. Finally, we report the spectra collected for six known gamma-ray blazars belonging to the Roma BZCAT that were obtained to establish their nature or better estimate their redshifts. Two interesting cases of high redshift and extremely luminous BL Lac objects (z >= 1.18 and z >= 1.02, based on the detection of Mg II intervening systems) are also discussed.
C1 [Landoni, M.] Osserv Astron Brera, INAF, I-23807 Merate, Italy.
[Landoni, M.] Ist Nazl Fis Nucl, Rome, Italy.
[Landoni, M.; Paggi, A.; D'Abrusco, R.; Milisavljevic, D.; Smith, H. A.] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA.
[Massaro, F.] Yale Univ, Dept Phys, Yale Ctr Astron & Astrophys, New Haven, CT 06520 USA.
[Massaro, F.] Univ Turin, Dipartmento Fis, I-10125 Turin, Italy.
[Masetti, N.] Ist Astrofis Spaziale & Fis Cosm Bologna, INAF, I-40129 Bologna, Italy.
[Tosti, G.] Univ Perugia, Dipartmento Fis, I-06123 Perugia, Italy.
[Chomiuk, L.; Strader, J.] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA.
[Cheung, C. C.] Naval Res Lab, Div Space Sci, Washington, DC 20375 USA.
RP Landoni, M (reprint author), Osserv Astron Brera, INAF, Via Emilio Bianchi 46, I-23807 Merate, Italy.
EM marco.landoni@brera.inaf.it
RI D'Abrusco, Raffaele/L-2767-2016; Massaro, Francesco/L-9102-2016; Paggi,
Alessandro/C-1219-2017
OI D'Abrusco, Raffaele/0000-0003-3073-0605; Massaro,
Francesco/0000-0002-1704-9850; Paggi, Alessandro/0000-0002-5646-2410
FU NASA [NNX12AO97G, NNX13AP20G, DPR S-15633-Y]; NASA/JPL grant RSAs
[1369566, 1369556, 1369565]; ASI/INAF [I/005/12/0]; National Aeronautics
and Space Administration; National Science Foundation
FX This investigation is supported by the NASA grants NNX12AO97G and
NNX13AP20G. H.A.S. acknowledges partial support from NASA/JPL grant RSAs
1369566, 1369556, and 1369565. The work by G. Tosti is supported by the
ASI/INAF contract I/005/12/0 while work by C.C.C. at NRL is supported in
part by NASA DPR S-15633-Y. We are grateful to Dr. S. Points for his
help to schedule, prepare, and perform the SOAR observations. Part of
this work is based on archival data, software, or online services
provided by the ASI Science Data Center. This research has made use of
data obtained from the high-energy Astrophysics Science Archive Research
Center (HEASARC) provided by NASA's Goddard Space Flight Center; the
SIMBAD database operated at CDS, Strasbourg, France; and the NASA/IPAC
Extragalactic Database (NED) operated by the Jet Propulsion Laboratory,
California Institute of Technology, under contract with the National
Aeronautics and Space Administration. The Molonglo Observatory site
manager, Duncan Campbell-Wilson, and the staff, Jeff Webb, Michael
White, and John Barry, are responsible for the smooth operation of
Molonglo Observatory Synthesis Telescope (MOST) and the day-to-day
observing programme of SUMSS. The SUMSS survey is dedicated to Michael
Large whose expertise and vision made the project possible. MOST is
operated by the School of Physics with the support of the Australian
Research Council and the Science Foundation for Physics within the
University of Sydney. This publication makes use of data products from
the Wide-field Infrared Survey Explorer, which is a joint project of the
University of California, Los Angeles, and the Jet Propulsion
Laboratory/California Institute of Technology, funded by the National
Aeronautics and Space Administration. This 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. This research has made use of the USNOFS Image and Catalogue
Archive operated by the United States Naval Observatory, Flagstaff
Station (http://www.nofs.navy.mil/data/fchpix/). TOPCAT16
(Taylor 2005) for the preparation and manipulation of the tabular data
and the images.
NR 56
TC 7
Z9 7
U1 0
U2 1
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0004-6256
EI 1538-3881
J9 ASTRON J
JI Astron. J.
PD MAY
PY 2015
VL 149
IS 5
AR 163
DI 10.1088/0004-6256/149/5/163
PG 7
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA CH5HC
UT WOS:000354065200014
ER
PT J
AU Warren, TC
AF Warren, T. Camber
TI Explosive connections? Mass media, social media, and the geography of
collective violence in African states
SO JOURNAL OF PEACE RESEARCH
LA English
DT Article
DE civil conflict; communication; political violence; soft power;
technology
ID SPATIAL POINT PATTERNS; CIVIL-WAR; POLITICAL VIOLENCE; ETHNIC-GROUPS;
CONFLICT; CAPACITY; SEVERITY; NETWORKS; DURATION; DATASET
AB Growing evidence indicates that the diffusion of information and communication technologies (ICTs) can substantially alter the contours of collective violence in developing nations. However, empirical investigations of such effects have generally been hampered by an inability to systematically measure geographic variation in ICT penetration, across multiple technologies and multiple countries. In this article, I show that geo-referenced household surveys can be used to estimate subnational differences in the spatial reach of radio and cellular communications infrastructures in 24 African states. By combining these estimates with geo-referenced measures of the location of disaggregated events of collective violence, I show that there are important differences between centralized mass' communication technologies - such as radios - that foster vertical linkages between state and society, and decentralized social' communication technologies - such as cell phones - that foster horizontal linkages between the members of a society. The evidence demonstrates that the geographic reach of mass media penetration generates substantial pacifying effects, while the reach of social media penetration generates substantial increases in collective violence, especially in areas lacking access to mass media infrastructure. I argue that these findings are consistent with a theory of ICT effects which focuses on the strengthening and weakening of economies of scale in the marketplace of ideas.
C1 Naval Postgrad Sch, Dept Def Anal, Monterey, CA 93943 USA.
RP Warren, TC (reprint author), Naval Postgrad Sch, Dept Def Anal, Monterey, CA 93943 USA.
EM camberw@gmail.com
FU Center for Comparative and International Studies at ETH Zurich
FX I would like to thank Lars-Erik Cederman, Erik Gartzke, Jason Lyall,
Sebastian Schutte, Branislav Slantchev, and Nils Weidmann for providing
helpful feedback on previous drafts of this article. This project also
benefited greatly from the comments of discussants and participants at
meetings of the American Political Science Association (APSA), the
International Studies Association (ISA), UCSD's Institute on Global
Conflict and Cooperation, and the Workshop on Communication, Technology,
and Political Conflict at Yale University. Portions of this research
were funded by support from the Center for Comparative and International
Studies at ETH Zurich. The opinions expressed are those of the author
alone.
NR 86
TC 3
Z9 3
U1 4
U2 11
PU SAGE PUBLICATIONS LTD
PI LONDON
PA 1 OLIVERS YARD, 55 CITY ROAD, LONDON EC1Y 1SP, ENGLAND
SN 0022-3433
EI 1460-3578
J9 J PEACE RES
JI J. Peace Res.
PD MAY
PY 2015
VL 52
IS 3
SI SI
BP 297
EP 311
DI 10.1177/0022343314558102
PG 15
WC International Relations; Political Science
SC International Relations; Government & Law
GA CH6EF
UT WOS:000354128400004
ER
PT J
AU Komaromi, WA
Majumdar, SJ
AF Komaromi, William A.
Majumdar, Sharanya J.
TI Ensemble-Based Error and Predictability Metrics Associated with Tropical
Cyclogenesis. Part II: Wave-Relative Framework
SO MONTHLY WEATHER REVIEW
LA English
DT Article
ID GENESIS FORECASTS; KARL 2010; VORTEX
AB The predictability of selected variables associated with tropical cyclogenesis is examined using 10-day ECMWF ensemble forecasts for 21 events from the 2010 Atlantic hurricane season. Variables are associated with the strength of the pregenesis disturbance, quantified via circulation and thickness anomaly, and the favorability of the immediate environment via moisture and vertical wind shear.
For approximately half of the cases, the predicted strength of the genesis signal is directly related to the predicted favorability of the environment. For the remainder of the cases, predictability is more directly associated with the strength and location of the analyzed disturbance. Some commonalities among the majority of the sample are also observed. Forecast joint distributions demonstrate that 700-hPa relative humidity of less than 60% within 300 km of the circulation center is a limiting factor for genesis. Genesis is also predicted and found to occur in the presence of significant wind shear (similar to 15 m s(-1)), but almost exclusively when the core and environment of the wave are both very moist.
The ensemble also demonstrates the potential to predict error standard deviation of variables averaged within 300- and 1000-km radii about individual tropical waves. Forecasts with greater ensemble standard deviation tend to be, on average, associated with greater mean error, especially for forecasts of less than 7 days. However, model biases, particularly a dry core and weak circulation bias, become pronounced at longer lead times. Overall, these results demonstrate that both the environmental conditions favorable to genesis and the genesis events themselves may be predictable to a week or more.
C1 [Komaromi, William A.] CNR, Monterey, CA USA.
[Majumdar, Sharanya J.] Univ Miami, Rosenstiel Sch Marine & Atmospher Sci, Miami, FL 33149 USA.
RP Komaromi, WA (reprint author), Naval Res Lab, 7 Grace Hopper Ave, Monterey, CA 93943 USA.
EM william.komaromi.ctr@nrlmry.navy.mil
FU National Research Council; National Science Foundation [ATM-0848753]
FX The authors gratefully acknowledge funding from the National Research
Council, as well as the National Science Foundation (Grant ATM-0848753).
The authors thank Rich Rotunno and Chris Davis of NCAR, Ryan Torn of
SUNY at Albany, and Brian Mapes and David Nolan of the University of
Miami for their comments and suggestions on this study. We would also
like to thank Jason Sippel and one anonymous reviewer, whose comments
improved this paper. Last, we thank TIGGE for the availability of the
data used in this study.
NR 23
TC 1
Z9 1
U1 2
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 MAY
PY 2015
VL 143
IS 5
BP 1665
EP 1686
DI 10.1175/MWR-D-14-00286.1
PG 22
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA CH5RW
UT WOS:000354094000011
ER
PT J
AU Lussier, LL
Rutherford, B
Montgomery, MT
Boothe, MA
Dunkerton, TJ
AF Lussier, Louis L., III
Rutherford, Blake
Montgomery, Michael T.
Boothe, Mark A.
Dunkerton, Timothy J.
TI Examining the Roles of the Easterly Wave Critical Layer and Vorticity
Accretion during the Tropical Cyclogenesis of Hurricane Sandy
SO MONTHLY WEATHER REVIEW
LA English
DT Article
ID POTENTIAL VORTICITY; HADLEY CIRCULATION; CYCLONE; GENESIS; ITCZ;
DEPRESSION; EVOLUTION; ATLANTIC; INTENSE; FLOWS
AB The tropical cyclogenesis sequence of Hurricane Sandy is examined. It is shown that genesis occurs within a recirculating Kelvin cat's-eye flow of a westward-propagating tropical wave. The cat's-eye flow is able to provide a protective environment for the mesoscale vortex to grow and is characterized by gradual column moistening and increased areal coverage of deep cumulus convection. These findings are generally consistent with a recently proposed tropical cyclogenesis sequence referred to as the "marsupial paradigm.'' Sandy's cyclogenesis provides a useful illustration of the marsupial paradigm within a partially open recirculating region, with the opening located south of the pouch center. It is suggested that the opening acts to enhance the genesis process because it is adjacent to an environment characterized by warm, moist air, conditions favorable for tropical cyclogenesis. From a dynamical perspective, accretion of low-level cyclonic vorticity filaments into the developing vortex from several sources (the South American convergence zone, an easterly wave located west of the pre-Sandy wave, and cyclonic vorticity generated along Hispaniola) is documented. Organization and growth of the nascent storm is enhanced by this accretion of cyclonic vorticity. A Lagrangian trajectory analysis is used to assess potential contributions to Sandy's spinup from a Caribbean gyre and the easterly wave that formed Hurricane Tony. This analysis indicates that these features are outside of the Lagrangian flow boundaries that define the pre-Sandy wave and do not directly contribute to spinup of the vortex. Finally, the effectiveness of forecasts from the U.S. and European operational numerical weather prediction models is discussed for this case.
C1 [Lussier, Louis L., III; Rutherford, Blake; Montgomery, Michael T.; Boothe, Mark A.] Naval Postgrad Sch, Monterey, CA USA.
[Dunkerton, Timothy J.] NW Res Associates Inc, Bellevue, WA 98009 USA.
RP Lussier, LL (reprint author), 10802 Airport Ct, Broomfield, CO 80021 USA.
EM lussier@ucar.edu
FU National Research Council (NRC); Naval Postgraduate School (NPS) in
Monterey, California; NASA [NNH09AK561, NNG11PK021, NNG09HG031];
National Science Foundation NSF [AGS-0733380, AGS-0849356]
FX The first two authors acknowledge 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. ECMWF data are provided by Gerard Kilroy and Roger Smith
from the Ludwig Maximilian University of Munich and the Deutscher
Wetterdienst. CIMMS TPW data are courtesy of Chris Velden. We thank John
Knaff and three anonymous reviewers for their constructive feedback that
has improved the content of this paper. The work of all authors was
partially supported by NASA Grants NNH09AK561, NNG11PK021, and
NNG09HG031 and by the National Science Foundation NSF AGS-0733380 and
NSF AGS-0849356. Tim Dunkerton acknowledges NSF ATM-0851554.
NR 35
TC 7
Z9 7
U1 1
U2 6
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 MAY
PY 2015
VL 143
IS 5
BP 1703
EP 1722
DI 10.1175/MWR-D-14-00001.1
PG 20
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA CH5RW
UT WOS:000354094000013
ER
PT J
AU Muscarella, P
Carrier, MJ
Ngodock, H
Smith, S
Lipphardt, BL
Kirwan, AD
Huntley, HS
AF Muscarella, Philip
Carrier, Matthew J.
Ngodock, Hans
Smith, Scott
Lipphardt, B. L., Jr.
Kirwan, A. D., Jr.
Huntley, Helga S.
TI Do Assimilated Drifter Velocities Improve Lagrangian Predictability in
an Operational Ocean Model?
SO MONTHLY WEATHER REVIEW
LA English
DT Article
ID GULF-OF-MEXICO; VARIATIONAL ASSIMILATION; SURFACE CURRENTS; CIRCULATION;
SYSTEM; IMPACT; SEA
AB The Lagrangian predictability of general circulation models is limited by the need for high-resolution data streams to constrain small-scale dynamical features. Here velocity observations from Lagrangian drifters deployed in the Gulf of Mexico during the summer 2012 Grand Lagrangian Deployment (GLAD) experiment are assimilated into the Naval Coastal Ocean Model (NCOM) 4D variational (4DVAR) analysis system to examine their impact on Lagrangian predictability. NCOM-4DVAR is a weak-constraint assimilation system using the indirect representer method. Velocities derived from drifter trajectories, as well as satellite and in situ observations, are assimilated. Lagrangian forecast skill is assessed using separation distance and angular differences between simulated and observed trajectory positions. Results show that assimilating drifter velocities substantially improves the model forecast shape and position of a Loop Current ring. These gains in mesoscale Eulerian forecast skill also improve Lagrangian forecasts, reducing the growth rate of separation distances between observed and simulated drifters by approximately 7.3 km day (1) on average, when compared with forecasts that assimilate only temperature and salinity observations. Trajectory angular differences are also reduced.
C1 [Muscarella, Philip; Carrier, Matthew J.; Ngodock, Hans; Smith, Scott] Naval Res Lab, Stennis Space Ctr, MS 39522 USA.
[Lipphardt, B. L., Jr.; Kirwan, A. D., Jr.; Huntley, Helga S.] Univ Delaware, Sch Marine Sci & Policy, Newark, DE USA.
RP Muscarella, P (reprint author), Naval Res Lab, 1009 Balch Blvd, Stennis Space Ctr, MS 39522 USA.
EM philip.muscarella@nrlssc.navy.mil
FU BP/The Gulf of Mexico Research Initiative; Office of Naval Research MURI
OCEAN 3D+1 [N00014-11-1-0087]
FX This research was made possible in part by a grant from BP/The Gulf of
Mexico Research Initiative. B. L. Lipphardt Jr., H. S. Huntley, and A.
D. Kirwan Jr. were also supported by the Office of Naval Research MURI
OCEAN 3D+1 Grant N00014-11-1-0087. The authors thank CARTHE for
providing the GLAD trajectories, and Emanuel Coelho for producing the
velocities (derived from these trajectories) used here. Thanks to the
CCAR for providing the SSH product in the Gulf of Mexico. We also thank
Rich Pawlowicz for providing the freely available M_MAP Matlab toolbox
used here.
NR 26
TC 5
Z9 5
U1 1
U2 7
PU AMER METEOROLOGICAL SOC
PI BOSTON
PA 45 BEACON ST, BOSTON, MA 02108-3693 USA
SN 0027-0644
EI 1520-0493
J9 MON WEATHER REV
JI Mon. Weather Rev.
PD MAY
PY 2015
VL 143
IS 5
BP 1822
EP 1832
DI 10.1175/MWR-D-14-00164.1
PG 11
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA CH5RW
UT WOS:000354094000019
ER
PT J
AU McMorrow, D
Wyche, MI
Chou, PT
Kasha, M
AF McMorrow, Dale
Wyche, Michon Irons
Chou, Pi Tai
Kasha, Michael
TI On the Dual Phosphorescence of Xanthone and Chromone in Glassy
Hydrocarbon Hosts
SO PHOTOCHEMISTRY AND PHOTOBIOLOGY
LA English
DT Article
ID PROTON-TRANSFER SPECTROSCOPY; EXCITED-STATE DYNAMICS; LOWEST
TRIPLET-STATES; AROMATIC KETONES; 3-HYDROXYFLAVONE; SOLVENT; ABSORPTION;
MOLECULES; PERTURBATIONS; 1-INDANONE
AB Trace quantities of hydrogen-bonding impurities in otherwise highly purified and dried glassy hydrocarbon matrices at 77K can modify the relative triplet state energy levels, and hence the photophysical properties of two aromatic ketones, xanthone and chromone, to the extent that the intrinsic spectroscopic properties are obscured. The intrinsic spectroscopic properties of each are revealed in multicrystalline n-alkane Shpol'skii matrices, and also can be observed in rigorously purified and dried hydrocarbon glasses at 77K. The extreme sensitivity to stoichiometric, and even substoichiometric quantities of hydrogen-bonding impurities arises from the near-degeneracy of the two lowest-lying triplet states, and the sensitive nature of the n* blueshift phenomena to specific hydrogen-bonding interactions.
C1 [McMorrow, Dale] US Naval Res Lab, Washington, DC 20375 USA.
[Wyche, Michon Irons; Kasha, Michael] Florida State Univ, Dept Chem, Tallahassee, FL 32306 USA.
[Wyche, Michon Irons; Kasha, Michael] Florida State Univ, Inst Mol Biophys, Tallahassee, FL 32306 USA.
[Wyche, Michon Irons] Xavier Univ Louisiana, New Orleans, LA USA.
[Chou, Pi Tai] Natl Taiwan Univ, Dept Chem, Taipei 10764, Taiwan.
RP McMorrow, D (reprint author), US Naval Res Lab, Washington, DC 20375 USA.
EM dale.mcmorrow@nrl.navy.mil
OI CHOU, PITAI/0000-0002-8925-7747
NR 50
TC 0
Z9 0
U1 3
U2 10
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0031-8655
EI 1751-1097
J9 PHOTOCHEM PHOTOBIOL
JI Photochem. Photobiol.
PD MAY-JUN
PY 2015
VL 91
IS 3
BP 576
EP 585
DI 10.1111/php.12451
PG 10
WC Biochemistry & Molecular Biology; Biophysics
SC Biochemistry & Molecular Biology; Biophysics
GA CH4DK
UT WOS:000353981900011
PM 25772977
ER
PT J
AU Strader, J
Chomiuk, L
Cheung, CC
Sand, DJ
Donato, D
Corbet, RHD
Koeppe, D
Edwards, PG
Stevens, J
Petrov, L
Salinas, R
Peacock, M
Finzell, T
Reichart, DE
Haislip, JB
AF Strader, Jay
Chomiuk, Laura
Cheung, C. C.
Sand, David J.
Donato, Davide
Corbet, Robin H. D.
Koeppe, Dana
Edwards, Philip G.
Stevens, Jamie
Petrov, Leonid
Salinas, Ricardo
Peacock, Mark
Finzell, Thomas
Reichart, Daniel E.
Haislip, Joshua B.
TI 1FGL J1417.7-4407: A LIKELY GAMMA-RAY BRIGHT BINARY WITH A MASSIVE
NEUTRON STAR AND A GIANT SECONDARY
SO ASTROPHYSICAL JOURNAL LETTERS
LA English
DT Article
DE binaries: spectroscopic; gamma rays: general; pulsars: general; X-rays:
binaries; X-rays: general
ID 2ND SOURCE CATALOG; MILLISECOND PULSARS; XSS J12270-4859; EVOLUTION;
SKY; COMPANIONS; SYSTEM; LINK
AB We present multiwavelength observations of the persistent Fermi-Large Area Telescope unidentified gamma-ray source 1FGL J1417.7-4407, showing it is likely to be associated with a newly discovered X-ray binary containing a massive neutron star (nearly 2 M-circle dot) and a similar to 0.35 M-circle dot giant secondary with a 5.4 day period. SOAR optical spectroscopy at a range of orbital phases reveals variable double-peaked Ha emission, consistent with the presence of an accretion disk. The lack of radio emission and evidence for a disk suggests the gamma-ray emission is unlikely to originate in a pulsar magnetosphere, but could instead be associated with a pulsar wind, relativistic jet, or could be due to synchrotron self-Compton at the disk-magnetosphere boundary. Assuming a wind or jet, the high ratio of gamma-ray to X-ray luminosity (similar to 20) suggests efficient production of gamma-rays, perhaps due to the giant companion. The system appears to be a low-mass X-ray binary that has not yet completed the pulsar recycling process. This system is a good candidate to monitor for a future transition between accretion-powered and rotational-powered states, but in the context of a giant secondary.
C1 [Strader, Jay; Chomiuk, Laura; Koeppe, Dana; Salinas, Ricardo; Peacock, Mark; Finzell, Thomas] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA.
[Cheung, C. C.] Naval Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Sand, David J.] Texas Tech Univ, Dept Phys, Lubbock, TX 79409 USA.
[Donato, Davide; Corbet, Robin H. D.] CRESST, Greenbelt, MD 20771 USA.
[Donato, Davide; Corbet, Robin H. D.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Donato, Davide] Univ Maryland, Dept Phys, College Pk, MD 20742 USA.
[Donato, Davide] Univ Maryland, Dept Astron, College Pk, MD 20742 USA.
[Edwards, Philip G.; Stevens, Jamie] CSIRO Astron & Space Sci, Epping, NSW 1710, Australia.
[Petrov, Leonid] Astrogeo Ctr, Falls Church, VA 22043 USA.
[Reichart, Daniel E.; Haislip, Joshua B.] Univ N Carolina, Dept Phys & Astron, Chapel Hill, NC 27599 USA.
RP Strader, J (reprint author), Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA.
OI Salinas, Ricardo/0000-0002-1206-1930
FU NSF [1066293]; NASA DPR [S-15633 Y]; ESO telescopes at the La Silla
Paranal Observatory [293.D-5029]; National Aeronautics and Space
Administration [NNG05GF22G]; U.S. National Science Foundation
[AST-0909182, AST-1313422]
FX We thank an anonymous referee for comments that significantly improved
the paper. We thank the Aspen Center for Physics and the NSF Grant
#1066293 for hospitality during the writing of this paper. We thank P.
Groot, T. Tauris, T. Maccarone, S. Bogdanov, and C. Heinke for useful
conversations, and M. Coe and G. McSwain for early discussions on
possible follow-up. Work by C.C.C. at NRL is supported in part by NASA
DPR S-15633 Y. Based on observations obtained at the Southern
Astrophysical Research (SOAR) telescope, which is a joint project of the
Ministerio da Ciencia, Tecnologia, e Inovacao (MCTI) da Republica
Federativa do Brasil, the U.S. National Optical Astronomy Observatory
(NOAO), the University of North Carolina at Chapel Hill (UNC), and
Michigan State University (MSU). Also based on observations made with
ESO telescopes at the La Silla Paranal Observatory under programme ID
293.D-5029. The scientific results reported in this article are based in
part on data obtained from the Chandra Data Archive. This paper includes
archived data obtained through the Australia Telescope Online Archive.
The CSS survey is funded by the National Aeronautics and Space
Administration under grant No. NNG05GF22G issued through the Science
Mission Directorate Near-earth Objects Observations Program. The CRTS
survey is supported by the U.S. National Science Foundation under grants
AST-0909182 and AST-1313422.
NR 58
TC 8
Z9 8
U1 0
U2 2
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 2041-8205
EI 2041-8213
J9 ASTROPHYS J LETT
JI Astrophys. J. Lett.
PD MAY 1
PY 2015
VL 804
IS 1
AR L12
DI 10.1088/2041-8205/804/1/L12
PG 8
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA CH1YK
UT WOS:000353819400012
ER
PT J
AU Mac Donald, CL
Adam, OR
Johnson, AM
Nelson, EC
Werner, NJ
Rivet, DJ
Brody, DL
AF Mac Donald, Christine L.
Adam, Octavian R.
Johnson, Ann M.
Nelson, Elliot C.
Werner, Nicole J.
Rivet, Dennis J.
Brody, David L.
TI Acute post-traumatic stress symptoms and age predict outcome in military
blast concussion
SO BRAIN
LA English
DT Article
DE traumatic brian injury; post-traumatic stress; clinical outcome;
concussion
ID TRAUMATIC BRAIN-INJURY; NEUROBEHAVIORAL RATING-SCALE; OPERATION IRAQI
FREEDOM; HEAD-INJURY; NOS-TBI; STRUCTURED INTERVIEWS;
PSYCHIATRIC-DISORDERS; OEF/OIF VETERANS; NATIONAL-GUARD; MENTAL-HEALTH
AB High rates of adverse outcomes have been reported following blast-related concussive traumatic brain injury in US military personnel, but the extent to which such adverse outcomes can be predicted acutely after injury is unknown. We performed a prospective, observational study of US military personnel with blast-related concussive traumatic brain injury (n = 38) and controls (n = 34) enrolled between March and September 2012. Importantly all subjects returned to duty and did not require evacuation. Subjects were evaluated acutely 0-7 days after injury at two sites in Afghanistan and again 6-12 months later in the United States. Acute assessments revealed heightened post-concussive, post-traumatic stress, and depressive symptoms along with worse cognitive performance in subjects with traumatic brain injury. At 6-12 months follow-up, 63% of subjects with traumatic brain injury and 20% of controls had moderate overall disability. Subjects with traumatic brain injury showed more severe neurobehavioural, post-traumatic stress and depression symptoms along with more frequent cognitive performance deficits and more substantial headache impairment than control subjects. Logistic regression modelling using only acute measures identified that a diagnosis of traumatic brain injury, older age, and more severe post-traumatic stress symptoms provided a good prediction of later adverse global outcomes (area under the receiver-operating characteristic curve = 0.84). Thus, US military personnel with concussive blast-related traumatic brain injury in Afghanistan who returned to duty still fared quite poorly on many clinical outcome measures 6-12 months after injury. Poor global outcome seems to be largely driven by psychological health measures, age, and traumatic brain injury status. The effects of early interventions and longer term implications of these findings are unknown.
C1 [Mac Donald, Christine L.; Johnson, Ann M.; Nelson, Elliot C.; Werner, Nicole J.; Brody, David L.] Univ Washington, Dept Neurol Surg, Seattle, WA 98104 USA.
[Adam, Octavian R.; Rivet, Dennis J.] Naval Med Ctr Portsmouth, Portsmouth, VA 23708 USA.
RP Mac Donald, CL (reprint author), Univ Washington, Dept Neurol Surg, 325 9th Ave,Box 359924, Seattle, WA 98104 USA.
EM cmacd@uw.edu
FU Congressionally Directed Medical Research Program [PT090444]
FX The study was funded by the Congressionally Directed Medical Research
Program (PT090444 Supplement, PI: D. Brody). The views expressed in this
article are those of the authors and do not reflect the official policy
of the Department of the Navy, Department of Defense, or U.S.
Government. The principal investigators O. Adam, D. Brody and study
director C. Mac Donald had full access to all of the data and take full
responsibility for the integrity of the data and the accuracy of the
analysis. The opinions or assertions contained herein are the private
views of the author and are not to be construed as official or as
reflecting the views of the Department of the Army or the Department of
Defense.
NR 71
TC 10
Z9 10
U1 4
U2 11
PU OXFORD UNIV PRESS
PI OXFORD
PA GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
SN 0006-8950
EI 1460-2156
J9 BRAIN
JI Brain
PD MAY 1
PY 2015
VL 138
BP 1314
EP 1326
DI 10.1093/brain/awv038
PN 5
PG 13
WC Clinical Neurology; Neurosciences
SC Neurosciences & Neurology
GA CH2DB
UT WOS:000353834100019
PM 25740219
ER
PT J
AU Yuan, X
Jiang, CM
Shi, Y
Hou, YT
Lou, WJ
Kompella, S
Midkiff, SF
AF Yuan, Xu
Jiang, Canming
Shi, Yi
Hou, Y. Thomas
Lou, Wenjing
Kompella, Sastry
Midkiff, Scott F.
TI Toward Transparent Coexistence for Multihop Secondary Cognitive Radio
Networks
SO IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS
LA English
DT Article
DE Spectrum sharing; coexistence; underlay; cognitive radio; multihop
network; MIMO; interference cancelation
ID WIRELESS NETWORKS; MIMO NETWORKS; TIME-DOMAIN; CHANNELS; SYSTEMS
AB The dominate spectrum sharing paradigm of today is interference avoidance, where a secondary network can use the spectrum only when such a use is not interfering with the primary network. However, with the advances of physical-layer technologies, the mindset of this paradigm is being challenged. This paper explores a new paradigm called "transparent coexistence" for spectrum sharing between primary and secondary nodes in a multihop network environment. Under this paradigm, the secondary network is allowed to use the same spectrum simultaneously with the primary network as long as their activities are "transparent" (or "invisible") to the primary network. Such transparency is accomplished through a systematic interference cancelation (IC) by the secondary nodes without any impact on the primary network. Although such a paradigm has been studied in the information theory (IT) and communications (COMM) communities, it is not well understood in the wireless networking community, particularly for multihop networks. This paper offers an in-depth study of this paradigm in a multihop network environment and addresses issues such as scheduling (both in frequency channels and time slots) and IC (to/from primary network and within the secondary network). Through a rigorous modeling and formulation, problem formulation, solution development, and simulation results, we show that transparent coexistence paradigm offers significant improvement in terms of spectrum access and throughput performance as compared to the current prevailing interference avoidance paradigm.
C1 [Yuan, Xu; Hou, Y. Thomas; Lou, Wenjing; Midkiff, Scott F.] Virginia Polytech Inst & State Univ, Blacksburg, VA 24061 USA.
[Jiang, Canming] Shape Secur, Mountain View, CA 94040 USA.
[Shi, Yi] Intelligent Automat Inc, Rockville, MD 20855 USA.
[Kompella, Sastry] US Naval Res Lab, Washington, DC 20375 USA.
RP Yuan, X (reprint author), Virginia Polytech Inst & State Univ, Blacksburg, VA 24061 USA.
EM xuy10@vt.edu; jcm@vt.edu; yshi@vt.edu; thou@vt.edu; wjlou@vt.edu;
sastry.kompella@nrl.navy.mil; midkiff@vt.edu
FU National Science Foundation (NSF); Office of Naval Research (ONR); ONR
FX This work was supported in part by the National Science Foundation (NSF)
and in part by the Office of Naval Research (ONR). Part of W. Lou's work
was completed while she was serving as a Program Director at the NSF.
The work of S. Kompella was supported in part by the ONR. Any opinion,
findings, and conclusions or recommendations expressed in this paper are
those of the authors and do not reflect the views of the U.S.
government. This paper was presented in part at the IEEE Communications
Society Conference on Sensor, Mesh and Ad Hoc Communications and
Networks (SECON), New Orleans, LA, USA, June 24-27, 2013.
NR 23
TC 5
Z9 5
U1 1
U2 2
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0733-8716
EI 1558-0008
J9 IEEE J SEL AREA COMM
JI IEEE J. Sel. Areas Commun.
PD MAY
PY 2015
VL 33
IS 5
BP 958
EP 971
DI 10.1109/JSAC.2014.2361090
PG 14
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA CG8NU
UT WOS:000353565800016
ER
PT J
AU Orji, U
Sievenpiper, B
Gerhard, K
Leeb, SB
Doerry, N
Kirtley, JL
McCoy, T
AF Orji, Uzoma
Sievenpiper, Bartholomew
Gerhard, Katherine
Leeb, Steven B.
Doerry, Norbert
Kirtley, James L., Jr.
McCoy, Timothy
TI Load Modeling For Power System Requirement and Capability Assessment
SO IEEE TRANSACTIONS ON POWER SYSTEMS
LA English
DT Article
DE Microgrids; power system dynamics; power systems analysis and computing;
power systems planning; simulation
AB Load modeling is essential for designing and operating power systems. This paper presents an approach for load modeling on smaller power systems that could be "islanded," an approach that preserves the detail of a full differential equation simulation of relevant loads while requiring far less computation by employing behavioral models of important loads. Mixed domain models, e.g., stochastic, finite-state machine, and differential equation models, are employed to provide accuracy in a computationally tractable framework. Where simple load models may not be adequate, particularly for generation-constrained systems (in a paper by Sotiropoulos et al.), and full models are computationally unfavorable, this approach provides excellent results that enable "what-if" studies and flexible re-evaluation during power system design and operational assessment. Naval vessels, particularly warships with relatively large and increasing load power requirements, offer a unique laboratory for understanding isolated power grids. This paper examines the DDG-51 power distribution system as an example.
C1 [Orji, Uzoma; Leeb, Steven B.; Kirtley, James L., Jr.] MIT, Dept Elect Engn & Comp Sci, Cambridge, MA 02139 USA.
[Sievenpiper, Bartholomew] US Navy, Honolulu, HI 96860 USA.
[Gerhard, Katherine] US Navy, Norfolk, VA 23505 USA.
[Doerry, Norbert] US Navy NAVSEA, Washington, DC 20376 USA.
[McCoy, Timothy] Elect Ships Off PMS 320, Washington, DC USA.
[McCoy, Timothy] US Navy, Washington, DC USA.
[McCoy, Timothy] ASNE, Oslo, Norway.
[McCoy, Timothy] IMarEST, London, England.
[McCoy, Timothy] SNAME, Zografos, Greece.
RP Orji, U (reprint author), MIT, Dept Elect Engn & Comp Sci, Cambridge, MA 02139 USA.
FU Grainger Foundation; NAVSEA [PMS 320]; Office of Naval Research
Structural Acoustics Program
FX The authors gratefully acknowledge the support and advice of The
Grainger Foundation, NAVSEA PMS 320, and the Office of Naval Research
Structural Acoustics Program.
NR 22
TC 0
Z9 0
U1 2
U2 6
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0885-8950
EI 1558-0679
J9 IEEE T POWER SYST
JI IEEE Trans. Power Syst.
PD MAY
PY 2015
VL 30
IS 3
BP 1415
EP 1423
DI 10.1109/TPWRS.2014.2348531
PG 9
WC Engineering, Electrical & Electronic
SC Engineering
GA CG9MX
UT WOS:000353641000030
ER
PT J
AU Yang, YT
Kuo, HC
Hendricks, EA
Liu, YC
Peng, MS
AF Yang, Yi-Ting
Kuo, Hung-Chi
Hendricks, Eric A.
Liu, Yi-Chin
Peng, Melinda S.
TI Relationship between Typhoons with Concentric Eyewalls and ENSO in the
Western North Pacific Basin
SO JOURNAL OF CLIMATE
LA English
DT Article
ID TROPICAL CYCLONE INTENSITY; EL-NINO; INTERANNUAL VARIABILITY; RAPID
FILAMENTATION; STORM FORMATION; EVENTS; EYE; SIMULATION; GENESIS; VORTEX
AB The typhoons with concentric eyewalls (CE) over the western North Pacific in different phases of the El Nino-Southern Oscillation (ENSO) between 1997 and 2012 are studied. They find a good correlation (0.72) between the annual CE typhoon number and the oceanic Nino index (ONI), with most of the CE typhoons occurring in the warm and neutral episodes. In the warm (neutral) episode, 55% (50%) of the typhoons possessed a CE structure. In contrast, only 25% of the typhoons possessed a CE structure in the cold episode. The CE formation frequency is also significantly different with 0.9 (0.2) CEs per month in the warm (cold) episode. There are more long-lived CE cases (CE structure maintained more than 20 h) and typhoons with multiple CE formations in the warm episodes. There are no typhoons with multiple CE formations in the cold episode. The warm episode CE typhoons generally have a larger size, stronger intensity, and smaller variation in convective activity and intensity. This may be due to the fact that the CE formation location is farther east in the warm episodes. Shifts in CE typhoon location with favorable conditions thus produce long-lived CE typhoons and multiple CE formations. The multiple CE formations may lead to expansion of the typhoon size.
C1 [Yang, Yi-Ting] Off Disaster Management, New Taipei City, Taiwan.
[Kuo, Hung-Chi] Natl Taiwan Univ, Dept Atmospher Sci, Taipei 10617, Taiwan.
[Hendricks, Eric A.; Peng, Melinda S.] Naval Res Lab, Marine Meteorol Div, Monterey, CA USA.
[Liu, Yi-Chin] Pacific NW Natl Lab, Richland, WA 99352 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 Ministry of Science and Technology, Taiwan [MOST 103-2111-M-002-010,
MOST 103-2625-M-002-003, MOST 100-2111-M-002-004-MY3,
NTU-CESRP-103R7604-1]; U.S. Office of Naval Research NICOP
[N62909-11-1-7096]
FX This research is sponsored by Ministry of Science and Technology,
Taiwan, under Grants MOST 103-2111-M-002-010, MOST 103-2625-M-002-003,
MOST 100-2111-M-002-004-MY3, and NTU-CESRP-103R7604-1 and by the U.S.
Office of Naval Research NICOP Grant N62909-11-1-7096. We appreciate the
comments of the three anomalous reviewers; their reviews helped us to
improve the manuscript greatly.
NR 35
TC 1
Z9 1
U1 0
U2 18
PU AMER METEOROLOGICAL SOC
PI BOSTON
PA 45 BEACON ST, BOSTON, MA 02108-3693 USA
SN 0894-8755
EI 1520-0442
J9 J CLIMATE
JI J. Clim.
PD MAY 1
PY 2015
VL 28
IS 9
BP 3612
EP 3623
DI 10.1175/JCLI-D-14-00541.1
PG 12
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA CH2EJ
UT WOS:000353838200010
ER
PT J
AU Reasor, PD
Montgomery, MT
AF Reasor, Paul D.
Montgomery, Michael T.
TI Evaluation of a Heuristic Model for Tropical Cyclone Resilience
SO JOURNAL OF THE ATMOSPHERIC SCIENCES
LA English
DT Article
ID VERTICAL WIND SHEAR; WAVE-NUMBER; VORTEX RESILIENCY; RADIAL STRUCTURE;
INFLOW LAYER; HURRICANE; INTENSITY; VORTICES; MOTION; AXISYMMETRIZATION
AB This work examines the applicability of a previously postulated heuristic model for the temporal evolution of the small-amplitude tilt of a tropical cyclone-like vortex under vertical shear forcing for both a dry and cloudy atmosphere. The heuristic model hinges on the existence of a quasi-discrete vortex Rossby wave and its ability to represent the coherent precession and tilt decay of a stable vortex in the free-alignment problem. Linearized numerical solutions for a dry and cloudy vortex confirm the model predictions that an increase in the magnitude of the radial potential vorticity (PV) gradient within the vortex skirt surrounding the core yields a more rapid evolution of a sheared vortex toward the equilibrium, left-of-shear tilt configuration. However, in the moist-neutral limit, in which the effective static stability vanishes in rising and sinking regions, the heuristic model yields a poor approximation to the simulated vortex core evolution, but a left-of-shear tilt of the near-core vortex, radially beyond the heating region, remains the preferred long-time solution. Within the near-core skirt, the PV perturbation generated by vertical shearing exhibits continuous-spectrum-type vortex Rossby waves, features that are not captured by the heuristic model. Nevertheless, the heuristic model continues to predict the rapid vertical alignment and equilibrium, left-of-shear tilt configuration of the simulated near-core vortex in the moist-neutral limit.
C1 [Reasor, Paul D.] NOAA, Atlantic Oceanog & Meteorol Lab, Hurricane Res Div, Miami, FL 33149 USA.
[Montgomery, Michael T.] Naval Postgrad Sch, Dept Meteorol, Monterey, CA USA.
RP Reasor, PD (reprint author), NOAA, Atlantic Oceanog & Meteorol Lab, Hurricane Res Div, 4301 Rickenbacker Causeway, Miami, FL 33149 USA.
EM paul.reasor@noaa.gov
RI Reasor, Paul/B-2932-2014
OI Reasor, Paul/0000-0001-6407-017X
FU NSF [ATM-0514199, AGS-0733380, AGS-1313948]; NOAA's Hurricane Research
Division; U.S. Naval Postgraduate School
FX The first author (P. D. R.) would like to acknowledge support from NSF
ATM-0514199. Both authors would like to thank Dr. David Schecter for
stimulating discussions that helped motivate this study and for his
insightful comments on the manuscript, including the comment that
motivated Eq. (15). We would also like to thank two anonymous reviewers
for their substantive comments, which have helped clarify both thought
and presentation. The second author (M. T. M.) would like to acknowledge
support from NSF AGS-0733380, AGS-1313948, NOAA's Hurricane Research
Division, and the U.S. Naval Postgraduate School.
NR 36
TC 8
Z9 8
U1 0
U2 2
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 MAY
PY 2015
VL 72
IS 5
BP 1765
EP 1782
DI 10.1175/JAS-D-14-0318.1
PG 18
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA CH2FC
UT WOS:000353840100005
ER
PT J
AU Smith, RK
Kilroy, G
Montgomery, MT
AF Smith, Roger K.
Kilroy, Gerard
Montgomery, Michael T.
TI Why Do Model Tropical Cyclones Intensify More Rapidly at Low Latitudes?
SO JOURNAL OF THE ATMOSPHERIC SCIENCES
LA English
DT Article
ID HURRICANE BOUNDARY-LAYER; EVOLUTION; SIMULATIONS; SENSITIVITY; VORTEX
AB The authors examine the problem of why model tropical cyclones intensify more rapidly at low latitudes. The answer to this question touches on practically all facets of the dynamics and thermodynamics of tropical cyclones. The answer invokes the conventional spin-up mechanism, as articulated in classical and recent work, together with a boundary layer feedback mechanism linking the strength of the boundary layer inflow to that of the diabatic forcing of the meridional overturning circulation.
The specific role of the frictional boundary layer in regulating the dependence of the intensification rate on latitude is discussed. It is shown that, even if the tangential wind profile at the top of the boundary layer is held fixed, a simple, steady boundary layer model produces stronger low-level inflow and stronger, more confined ascent out of the boundary layer as the latitude is decreased, similar to the behavior found in a time-dependent, three-dimensional numerical model. In an azimuthally averaged view of the problem, the most prominent quantitative differences between the time-dependent simulations at 10 degrees and 30 degrees N are the stronger boundary layer inflow and the stronger ascent of air exiting the boundary layer, together with the much larger diabatic heating rate and its radial gradient above the boundary layer at the lower latitude. These differences, in conjunction with the convectively induced convergence of absolute angular momentum, greatly surpass the effects of rotational stiffness (inertial stability) and evaporative-wind feedback that have been proposed in some prior explanations.
C1 [Smith, Roger K.; Kilroy, Gerard] Univ Munich, Inst Meteorol, D-80333 Munich, Germany.
[Montgomery, Michael T.] Naval Postgrad Sch, Dept Meteorol, Monterey, CA USA.
RP Smith, RK (reprint author), Univ Munich, Inst Meteorol, Theresienstr 37, D-80333 Munich, Germany.
EM roger.smith@lmu.de
FU German Research Council (Deutsche Forschungsgemeinschaft) [SM30-23]; NSF
[AGS-0733380]; NASA [NNG11PK021]
FX We are grateful to Dr. Gerald Thomsen, who set up the numerical
calculations that form the basis of section 2. This paper was completed
during a productive and enjoyable visit to the Bureau of Meteorology's
Regional Forecasting Centre in Darwin, Australia, in January 2014, and
we thank Andrew Tupper and Todd Smith for hosting our visit and
providing a stimulating atmosphere for conducting our research. RKS and
GK acknowledge financial support for this research from the German
Research Council (Deutsche Forschungsgemeinschaft) under Grant SM30-23.
MTM acknowledges the support of NSF AGS-0733380, NASA Grant NNG11PK021,
and insightful email correspondence in 2011 with Dr. F. Fendell
regarding the Carrier theory of tropical cyclone intensification. The
authors thank also Dr. S. Abarca for his assistance in streamlining the
numerical code to solve the Sawyer-Eliassen balance equation developed
earlier by RKS, MTM, and Dr. Hai Bui. Finally, we thank John Molinari
and Dave Raymond for their perceptive comments on the manuscript.
NR 49
TC 11
Z9 11
U1 2
U2 4
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 MAY
PY 2015
VL 72
IS 5
BP 1783
EP 1804
DI 10.1175/JAS-D-14-0044.1
PG 22
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA CH2FC
UT WOS:000353840100006
ER
PT J
AU Ryglicki, DR
AF Ryglicki, David R.
TI An Analysis of a Barotropically Unstable, High-Rossby Number Vortex in
Shear
SO JOURNAL OF THE ATMOSPHERIC SCIENCES
LA English
DT Article
ID HURRICANE-LIKE VORTICES; VERTICAL WIND SHEAR; INERTIA-GRAVITY WAVES;
TROPICAL CYCLONES; POTENTIAL VORTICITY; PART II; INTENSITY; CORE;
EYEWALL; FLOW
AB The interactions of the barotropic instability found at low levels in tropical cyclones and a shear forcing are presented. Previous works have indicated that at low levels of tropical cyclones, the inner edge of the core may be barotropically unstable and thereby able to support counterpropagating vortex Rossby wave interactions. It has also been demonstrated that hurricanes and other barotropic vortices possess innate, dry abilities to maintain themselves when under the duress of vertical wind shear. This work will address how these two separate processes interact with each other.
In this study, the barotropic ring is given additional vorticity in the outer regions to mimic observations more closely. This allows for the outward propagation of energy and simultaneous reduction of the radius of maximum wind. When this vortex is sheared, it is found that the shear forcing, which acts as a de facto wavenumber-1 forcing, does not noticeably alter the growth of the most unstable mode, wavenumber 3. The tilt precession of the vortex is altered greatly, as the tilt becomes both larger and slower. Palinstrophy and deformation analysis indicates that overall peak mixing is also reduced, owing to changes in the axisymmetrization process. Energetics analyses show that the radial component of the shear forcing acts to generate eddies while the tangential component of the shear tends to destroy eddies. The calculations are carried out a second time with another center-finding method, which shows the tilt to be much smaller and more variable while imparting a large wavenumber-1 signal in Fourier analyses.
C1 [Ryglicki, David R.] Fleet Numer Meteorol & Oceanog Ctr, Monterey, CA USA.
RP Ryglicki, DR (reprint author), Naval Res Lab, 7 Grace Hopper Ave,Stop 2,Room 254,Bldg 704, Monterey, CA 93940 USA.
EM david.ryglicki.ctr@nrlmry.navy.mil
FU Science, Mathematics, and Research for Transformation (SMART)
scholarship at Florida State University
FX A large portion of this work was performed while the author held a
Science, Mathematics, and Research for Transformation (SMART)
scholarship at Florida State University while completing his Ph.D. The
author thanks Robert Hart and Jonathan Hodapp for discussion and
editing. The author also thanks Eric Hendricks and three anonymous
reviewers for their insightful comments that helped to improve this
work's readability, clarity, and content. The author would finally like
to thank Paul Reasor for his contributions to this work during the
author's dissertation.
NR 52
TC 2
Z9 2
U1 1
U2 2
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 MAY
PY 2015
VL 72
IS 5
BP 2152
EP 2177
DI 10.1175/JAS-D-14-0180.1
PG 26
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA CH2FC
UT WOS:000353840100026
ER
PT J
AU Blois, G
Barros, JM
Christensen, KT
AF Blois, Gianluca
Barros, Julio M.
Christensen, Kenneth T.
TI A microscopic particle image velocimetry method for studying the
dynamics of immiscible liquid-liquid interactions in a porous micromodel
SO MICROFLUIDICS AND NANOFLUIDICS
LA English
DT Article
DE Multiphase flow; Trapping; Flow measurements; Micro-PIV
ID CAPILLARY-PRESSURE; FLUID DISPLACEMENT; FLOW; SIMULATIONS; TRANSITION;
TURBULENCE; MEDIA; SEQUESTRATION; HYSTERESIS; NETWORK
AB The development of an experimental protocol to investigate the flow field produced by the interaction of two immiscible liquids flowing through a porous network is reported. The experimental protocol allows simultaneous quantification of the velocity distribution in a multi-liquid system based on the microscopic particle image velocimetry technique. The experimental challenges associated with this unique application are discussed, including two-liquid imaging and interface tracking, and solutions that couple refractive index matching and fluorescent signal separation are described. The technique was applied to both single- and two-liquid flows in a two-dimensional pore network comprising a staggered array of circular pillars wherein the flow was driven by a steady pressure gradient. Both drainage and imbibition were considered herein with a focus on fluid-fluid front migration and effects owing to the passage of the interface. The velocity distribution obtained for these two-liquid-phase flow scenarios revealed several peculiarities when compared to the reference case of single-liquid-phase flow. In particular, the instabilities associated with the interfacial processes propagate downstream and perturb the flow field, resulting in dramatic differences from the regular and periodic flow paths typical of steady-state, single-phase flow. Additionally, the passage of the interface does not restore previous flow patterns, but instead yields complex preferential flow paths that mutually interact with residual trapped pockets of fluid. Such dynamical events must be quantified in order to properly model the pore-scale physics central to fully understanding the wealth of practical applications represented by this model flow system.
C1 [Blois, Gianluca] Univ Illinois, Dept Geol, Urbana, IL 61801 USA.
[Barros, Julio M.] US Naval Acad, Dept Mech Engn, Annapolis, MD 21402 USA.
[Barros, Julio M.; Christensen, Kenneth T.] Univ Illinois, Dept Mech Sci, Urbana, IL 61801 USA.
[Barros, Julio M.; Christensen, Kenneth T.] Univ Illinois, Dept Engn, Urbana, IL 61801 USA.
[Christensen, Kenneth T.] Kyushu Univ, Int Inst Carbon Neutral Energy Res WPI I2CNER, Nishi Ku, Fukuoka 8190395, Japan.
RP Blois, G (reprint author), Univ Notre Dame, Aerosp & Mech Engn, Civil & Environm Engn & Earth Sci, Notre Dame, IN 46556 USA.
EM blois@illinois.edu; barros@usna.edu; christensen.33@nd.edu
RI Christensen, Kenneth/B-1123-2009; U-ID, Kyushu/C-5291-2016
OI Christensen, Kenneth/0000-0003-1468-2455;
FU International Institute for Carbon Neutral Energy Research (WPI-I2CNER)
- World Premier International Research Center Initiative (WPI), MEXT,
Japan; Roscoe Jackson Postdoctoral Fellowship at the University of
Illinois
FX The authors gratefully acknowledge the support of the International
Institute for Carbon Neutral Energy Research (WPI-I2CNER), sponsored by
the World Premier International Research Center Initiative (WPI), MEXT,
Japan. The first author (G.B.) was supported by the Roscoe Jackson
Postdoctoral Fellowship at the University of Illinois.
NR 42
TC 2
Z9 2
U1 3
U2 28
PU SPRINGER HEIDELBERG
PI HEIDELBERG
PA TIERGARTENSTRASSE 17, D-69121 HEIDELBERG, GERMANY
SN 1613-4982
EI 1613-4990
J9 MICROFLUID NANOFLUID
JI Microfluid. Nanofluid.
PD MAY
PY 2015
VL 18
IS 5-6
BP 1391
EP 1406
DI 10.1007/s10404-014-1537-1
PG 16
WC Nanoscience & Nanotechnology; Instruments & Instrumentation; Physics,
Fluids & Plasmas
SC Science & Technology - Other Topics; Instruments & Instrumentation;
Physics
GA CH1YP
UT WOS:000353819900059
ER
PT J
AU Ventura, J
Romano, M
Walter, U
AF Ventura, Jacopo
Romano, Marcello
Walter, Ulrich
TI Performance evaluation of the inverse dynamics method for optimal
spacecraft reorientation
SO ACTA ASTRONAUTICA
LA English
DT Article
DE Attiude maneuver; Optimization; Nonlinear programming; Spacecraft
reorientation
ID OPTIMAL 3-AXIS REORIENTATION; RIGID SPACECRAFT
AB This paper investigates the application of the inverse dynamics in the virtual domain method to Euler angles, quaternions, and modified Rodrigues parameters for rapid optimal attitude trajectory generation for spacecraft reorientation maneuvers. The impact of the virtual domain and attitude representation is numerically investigated for both minimum time and minimum energy problems. Owing to the nature of the inverse dynamics method, it yields sub-optimal solutions for minimum time problems. Furthermore, the virtual domain improves the optimality of the solution, but at the cost of more computational time. The attitude representation also affects solution quality and computational speed. For minimum energy problems, the optimal solution can be obtained without the virtual domain with any considered attitude representation. (C) 2014 IAA. Published by Elsevier Ltd. All rights reserved.
C1 [Ventura, Jacopo; Walter, Ulrich] Tech Univ Munich, Inst Astronaut, D-85748 Garching, Germany.
[Romano, Marcello] Naval Postgrad Sch, Dept Mech & Aerosp Engn, Monterey, CA 93943 USA.
RP Ventura, J (reprint author), Tech Univ Munich, Inst Astronaut, Boltzmannstr 15, D-85748 Garching, Germany.
EM jacopo.ventura@tum.de
FU Munich Aerospace e.V.
FX The financial support from Munich Aerospace e.V. is gratefully
acknowledged. The first author thanks Dr. Marco Ciarcia, NRC research
associate at Spacecraft Robotics Laboratory of Naval Postgraduate
School, Monterey for his precious advice on IDVD.
NR 21
TC 2
Z9 2
U1 1
U2 6
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0094-5765
EI 1879-2030
J9 ACTA ASTRONAUT
JI Acta Astronaut.
PD MAY-JUN
PY 2015
VL 110
BP 266
EP 278
DI 10.1016/j.actaastro.2014.11.041
PG 13
WC Engineering, Aerospace
SC Engineering
GA CG8YC
UT WOS:000353600600024
ER
PT J
AU Conroy, MW
Ananth, R
AF Conroy, M. W.
Ananth, R.
TI Fuel Surface Cooling by Aqueous Foam: A Pool Fire Suppression Mechanism
SO FIRE TECHNOLOGY
LA English
DT Article
DE Fire suppression; Pool fires; Aqueous foams; Surface cooling;
Interfacial heat transfer
ID DYNAMICS; SIZE
AB Aqueous foams are generally thought to suppress pool fires by forming a transport barrier (either an aqueous film or the foam itself) that prevents fuel vapor transport from the hot pool surface into the fire above. The present work is aimed at evaluating a different potential suppression mechanism wherein the fuel vapor pressure is reduced due to pool surface cooling that occurs when a room-temperature foam is brought in direct contact with the hot pool surface. We present a model to predict the sudden decrease in pool surface temperature when aqueous foam is applied instantaneously and uniformly onto a shallow, burning, heptane fuel pool. Conduction is assumed to dominate heat transfer at short time scales (a few seconds) due to the steep temperature gradient at the interface. The model describes the time evolution of the temperature profile by numerically solving a transient, one-dimensional, heat-conduction equation in the liquid pool and in the foam layer. We also obtained an analytical solution that is valid immediately after contact between fuel and foam. Model predictions show a significant decrease in fuel surface temperature in less than a second after the foam layer is placed on top of a hot liquid pool surface, causing a decrease in the fuel vapor pressure of over 75%. The predictions indicate that surface cooling could be an important mechanism of fire suppression by aqueous foams.
C1 [Conroy, M. W.; Ananth, R.] Naval Res Lab, Div Chem, Navy Technol Ctr Safety & Survivabil, Washington, DC 20375 USA.
RP Ananth, R (reprint author), Naval Res Lab, Div Chem, Navy Technol Ctr Safety & Survivabil, Washington, DC 20375 USA.
EM ramagopal.ananth@nrl.navy.mil
FU Office of Naval Research Laboratory
FX We thank Office of Naval Research Laboratory for their support during
this work. We also thank Dr. James W. Fleming for numerous discussions.
NR 16
TC 1
Z9 1
U1 3
U2 11
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0015-2684
EI 1572-8099
J9 FIRE TECHNOL
JI Fire Technol.
PD MAY
PY 2015
VL 51
IS 3
BP 667
EP 689
DI 10.1007/s10694-015-0470-5
PG 23
WC Engineering, Multidisciplinary; Materials Science, Multidisciplinary
SC Engineering; Materials Science
GA CF9AU
UT WOS:000352854700013
ER
PT J
AU Direnzo, MS
Greenhaus, JH
Weer, CH
AF Direnzo, Marco S.
Greenhaus, Jeffrey H.
Weer, Christy H.
TI Relationship between protean career orientation and work-life balance: A
resource perspective
SO JOURNAL OF ORGANIZATIONAL BEHAVIOR
LA English
DT Review
DE protean career orientation; work-life balance; employability; resources;
whole-life perspective
ID STRUCTURAL EQUATION MODELS; TRICKLE-DOWN MODEL; FAMILY CONFLICT;
BOUNDARYLESS CAREER; VOLUNTARY TURNOVER; SELF-MANAGEMENT; JOB SEARCH;
TRANSFORMATIONAL LEADERSHIP; PERCEIVED EMPLOYABILITY; PSYCHOLOGICAL
CONTRACT
AB Despite the commonly held belief that a protean career orientation (PCO) enables employees to achieve more balance in their lives, little is known about the relationship between PCO and work-life balance. Using two waves of data collection separated by 2.5years, this study examined the relationship between PCO and work-life balance among a sample of 367 college-educated employees in the United States. Analysis was conducted to empirically distinguish PCO from conceptually related constructs, and structural equation modeling was used to examine the process that explains the linkage between PCO and balance. We found that PCO was positively related to work-life balance. We also found support for the role of several resources (social capital, psychological capital, and perceived employability) that explain the relationship between PCO and balance. In particular, PCO was associated with extensive career planning activities that were related to the accumulation of three forms of career capitalhuman capital, social capital, and psychological capital. In turn, social capital and psychological capital were associated with high employability, which was related to greater work-life balance for individuals who take a whole-life perspective on their careers. We discuss the theoretical and practical implications of the findings and provide suggestions for future research. Copyright (c) 2015 John Wiley & Sons, Ltd.
C1 [Direnzo, Marco S.] Naval Postgrad Sch, Dept Management, Monterey, CA 93943 USA.
[Greenhaus, Jeffrey H.] Drexel Univ, Dept Management, Philadelphia, PA 19104 USA.
[Weer, Christy H.] Salisbury Univ, Dept Management & Mkt, Salisbury, MD USA.
RP Direnzo, MS (reprint author), Naval Postgrad Sch, Dept Management, 555 Dyer Rd, Monterey, CA 93943 USA.
EM msdirenz@nps.edu
NR 144
TC 7
Z9 7
U1 16
U2 67
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0894-3796
EI 1099-1379
J9 J ORGAN BEHAV
JI J. Organ. Behav.
PD MAY
PY 2015
VL 36
IS 4
BP 538
EP 560
DI 10.1002/job.1996
PG 23
WC Business; Psychology, Applied; Management
SC Business & Economics; Psychology
GA CG6JM
UT WOS:000353406500004
ER
PT J
AU Lalani, T
Maguire, JD
Grant, EM
Fraser, J
Ganesan, A
Johnson, MD
Deiss, RG
Riddle, MS
Burgess, T
Tribble, DR
AF Lalani, Tahaniyat
Maguire, Jason D.
Grant, Edward M.
Fraser, Jamie
Ganesan, Anuradha
Johnson, Mark D.
Deiss, Robert G.
Riddle, Mark S.
Burgess, Timothy
Tribble, David R.
CA IDCRP TravMil Study Grp
TI Epidemiology and Self-Treatment of Travelers' Diarrhea in a Large,
Prospective Cohort of Department of Defense Beneficiaries
SO JOURNAL OF TRAVEL MEDICINE
LA English
DT Article
ID IRRITABLE-BOWEL-SYNDROME; RESOURCE-LIMITED DESTINATIONS;
DEVELOPING-COUNTRIES; EUROPEAN TRAVELERS; UNITED-STATES; LOPERAMIDE;
SYMPTOMS; MEXICO; RISK; AZITHROMYCIN
AB BackgroundInfectious diarrhea is a common problem among travelers. Expert guidelines recommend the prompt use of antibiotics for self-treatment of moderate or severe travelers' diarrhea (TD). There is limited data on whether travelers follow these self-treatment guidelines. We evaluated the risk factors associated with TD, the use of TD self-treatment, and the risk of irritable bowel syndrome (IBS) during travel.
MethodsDepartment of Defense beneficiaries traveling outside the United States for 6.5months were enrolled in a prospective cohort study. Participants received pre- and post-travel surveys, and could opt into a travel illness diary and follow-up surveys for symptoms of IBS.Standard definitions were used to assess for TD and IBS. Suboptimal self-treatment was defined as the use of antibiotics (with or without antidiarrheal agents) for mild TD, or the use of antidiarrheals alone or no self-treatment in cases of moderate or severe TD.
ResultsTwenty-four percent of participants (270/1,120) met the criteria for TD. The highest incidence was recorded in Africa [8.6 cases/100 person-weeks, 95% confidence interval (CI): 6.7-10.5]. Two hundred and twelve participants with TD provided information regarding severity and self-treatment: 89 (42%) had mild TD and 123 (58%) had moderate or severe TD. Moderate or severe TD was independently associated with suboptimal self-treatment [OR 10.4 (95% CI: 4.92-22.0)]. Time to last unformed stool did not differ between optimal and suboptimal self-treatment. IBS occurred in 4.5% (7/154) of TD cases and in 3.1% (16/516) of cases without TD (p=0.39). Among TD cases, a lower incidence of IBS was noted in participants who took antibiotics [4.8% (5/105) vs 2.2% (1/46)] in those who did not, but the difference did not reach statistical significance (p=0.60).
ConclusionsOur results suggest the underutilization of antibiotics in travelers with moderate or severe TD. Further studies are needed to systematically evaluate pre-travel instruction and traveler adherence to self-treatment guidelines, and the impact of suboptimal self-treatment on outcomes.
C1 [Lalani, Tahaniyat; Maguire, Jason D.; Grant, Edward M.; Fraser, Jamie; Ganesan, Anuradha; Deiss, Robert G.; Tribble, David R.] Uniformed Serv Univ Hlth Sci, Infect Dis Clin Res Program, Bethesda, MD 20814 USA.
[Lalani, Tahaniyat] Henry M Jackson Fdn Adv Mil Med, Bethesda, MD USA.
[Lalani, Tahaniyat; Maguire, Jason D.] Naval Med Ctr Portsmouth, Div Infect Dis, Portsmouth, VA 23708 USA.
[Ganesan, Anuradha; Burgess, Timothy] Walter Reed Natl Mil Med Ctr, Div Infect Dis, Bethesda, MD USA.
[Johnson, Mark D.; Deiss, Robert G.] Naval Med Ctr, Div Infect Dis, San Diego, CA USA.
[Johnson, Mark D.] Naval Hlth Res Ctr, Dept Def HIV AIDS Prevent Program, San Diego, CA USA.
[Riddle, Mark S.] Naval Med Res Ctr, Enter Dis Dept, Silver Spring, MD USA.
RP Lalani, T (reprint author), Naval Med Ctr Portsmouth, Infect Dis & Travel Clin, Bldg 3,1st Floor, Portsmouth, VA 23708 USA.
EM tlalani@idcrp.org
FU Infectious Disease Clinical Research Program (IDCRP), a DoD program
through the Uniformed Services University of the Health Sciences;
Infectious Disease Clinical Research Program (IDCRP), a DoD program
through National Institute of Allergy and Infectious Diseases;
Infectious Disease Clinical Research Program (IDCRP), a DoD program
through National Institutes of Health (NIH) [Y1-AI-5072]
FX The study was supported by the Infectious Disease Clinical Research
Program (IDCRP), a DoD program executed through the Uniformed Services
University of the Health Sciences, the National Institute of Allergy and
Infectious Diseases, and the National Institutes of Health (NIH), under
the Inter-Agency Agreement Y1-AI-5072.
NR 29
TC 4
Z9 4
U1 0
U2 1
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1195-1982
EI 1708-8305
J9 J TRAVEL MED
JI J. Travel Med.
PD MAY-JUN
PY 2015
VL 22
IS 3
BP 152
EP 160
DI 10.1111/jtm.12179
PG 9
WC Medicine, General & Internal
SC General & Internal Medicine
GA CG6CJ
UT WOS:000353382800003
PM 25483360
ER
PT J
AU Atkinson, MP
Singham, DI
AF Atkinson, Michael P.
Singham, Dashi I.
TI Multidimensional hitting time results for Brownian bridges with moving
hyperplanar boundaries
SO STATISTICS & PROBABILITY LETTERS
LA English
DT Article
DE Brownian bridge; First-passage time; Hyperplane boundaries
ID MOTION; MOVEMENT; SPHERES
AB We calculate several hitting time probabilities for a correlated multidimensional Brownian bridge process, where the boundaries are hyperplanes that move linearly with time. We compute the probability that a Brownian bridge will cross a moving hyperplane if the endpoints of the bridge lie on the same side of the hyperplane at the starting and ending times, and we derive the distribution of the hitting time if the endpoints lie on opposite sides of the moving hyperplane. Our third result calculates the probability that this process remains between two parallel hyperplanes, and we extend this result in the independent case to a hyperrectangle with moving faces. To derive these quantities, we rotate the coordinate axes to transform the problem into a one-dimensional calculation. Published by Elsevier B.V.
C1 [Atkinson, Michael P.; Singham, Dashi I.] Naval Postgrad Sch, Dept Operat Res, Monterey, CA 93943 USA.
RP Atkinson, MP (reprint author), Naval Postgrad Sch, Dept Operat Res, Monterey, CA 93943 USA.
EM mpatkins@nps.edu
NR 18
TC 0
Z9 0
U1 0
U2 2
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0167-7152
EI 1879-2103
J9 STAT PROBABIL LETT
JI Stat. Probab. Lett.
PD MAY
PY 2015
VL 100
BP 85
EP 92
DI 10.1016/j.spl.2015.02.006
PG 8
WC Statistics & Probability
SC Mathematics
GA CG0ZM
UT WOS:000353002800011
ER
PT J
AU Woo, DJ
Heer, FC
Brewer, LN
Hooper, JP
Osswald, S
AF Woo, D. J.
Heer, F. C.
Brewer, L. N.
Hooper, J. P.
Osswald, S.
TI Synthesis of nanodiamond-reinforced aluminum metal matrix composites
using cold-spray deposition
SO CARBON
LA English
DT Article
ID MICROSTRUCTURAL CHARACTERIZATION; RAMAN-SPECTROSCOPY; COATINGS; POWDERS;
CARBON
AB A dense nanodiamond-aluminum (ND-Al) composite coating was successfully produced by low pressure cold spray (CS) deposition of ball-milled powders containing 10 wt% ND. High-energy ball milling is a feasible means for the synthesis of composite feedstock powders as it provides excellent control over particle size distribution, crystal size, and the dispersion of ND agglomerates. The resulting CS coatings were characterized with respect to deposition efficiency, particle velocity and mechanical properties. It was found that the CS deposition produced dense, ND-Al composite coatings with increases in both hardness and elastic modulus as compared to the feedstock powders. The coating hardness of the 0.5 h-milled ND-Al composite that has the highest DE (14.2%) in ND-Al composites is 3.02 GPa, an 175% increase over the pristine as-received Al (1.10 GPa). The highest elastic modulus of the composite coatings is 98.3 GPa, a 51.5% increase over the as-received Al powder. (C) Published by Elsevier Ltd.
C1 [Woo, D. J.; Hooper, J. P.; Osswald, S.] Naval Postgrad Sch, Dept Phys, Monterey, CA 93943 USA.
[Heer, F. C.; Brewer, L. N.; Osswald, S.] Naval Postgrad Sch, Dept Mech & Aerosp Engn, Monterey, CA 93943 USA.
RP Osswald, S (reprint author), Purdue Univ, Sch Mat Engn, 701 West Stadium Ave, W Lafayette, IN 47907 USA.
EM sosswald@purdue.edu
FU Office of Naval Research [30]
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 (Code 30).
NR 33
TC 2
Z9 3
U1 2
U2 37
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 MAY
PY 2015
VL 86
BP 15
EP 25
DI 10.1016/j.carbon.2015.01.010
PG 11
WC Chemistry, Physical; Materials Science, Multidisciplinary
SC Chemistry; Materials Science
GA CF9YB
UT WOS:000352922700003
ER
PT J
AU Lock, EH
Delongchamp, DM
Schmucker, SW
Simpkins, B
Laskoski, M
Mulvaney, SP
Hines, DR
Baraket, M
Hernandez, SC
Robinson, JT
Sheehan, PE
Jaye, C
Fisher, DA
Walton, SG
AF Lock, Evgeniya H.
Delongchamp, Dean M.
Schmucker, Scott W.
Simpkins, Blake
Laskoski, Matthew
Mulvaney, Shawn P.
Hines, Daniel R.
Baraket, Mira
Hernandez, Sandra C.
Robinson, Jeremy T.
Sheehan, Paul E.
Jaye, Cherno
Fisher, Daniel A.
Walton, Scott G.
TI Dry graphene transfer print to polystyrene and ultra-high molecular
weight polyethylene - Detailed chemical, structural, morphological and
electrical characterization
SO CARBON
LA English
DT Article
ID THIN-FILM TRANSISTORS; BEAM-GENERATED PLASMAS; COVALENT
FUNCTIONALIZATION; RAMAN-SPECTROSCOPY; HIGH-QUALITY; PHOTONICS;
POLYMERS; ELECTRODES; DEVICES
AB Graphene (Gr)-polystyrene (PS) and graphene (Gr)-ultra-high molecular weight polyethylene (UHMW PE) laminates were fabricated using a transfer print approach that relies on differential adhesion to remove graphene from Cu foil without chemical etching. The polymer surfaces were prepared using plasma functionalization followed by N-ethylamino-4-azidotetrafluorobenzoate (TFPA) deposition. Then, the graphene on Cu foil and the TFPA coated polymers were pressed at elevated temperature and mild pressure. Finally, they were separated by mechanical peeling. No additional processing was applied. Detailed chemical, structural, and morphological characterization of PS and UHMW PE before and after graphene transfer print was performed using a suite of complementary surface analysis techniques including X-ray Photoelectron Spectroscopy (XPS), Near Edge X-ray Absorption Fine Structure Spectroscopy (NEXAFS), Raman Spectroscopy, and Atomic Force Microscopy (AFM). The charge carrier density and charge carrier mobility of the transferred graphene were determined using Hall effect measurements. We found that graphene's electrical properties were preserved and comparable to those of graphene on SiO2/Si. Furthermore, modulation of TFPA attachment to PS and UHMW PE led to different TFPA-layer microstructure and therefore to a different amount of functional azide groups available to form carbene bonds with graphene causing changes in graphene's compressive strain, doping and mobility. Published by Elsevier Ltd.
C1 [Lock, Evgeniya H.] Naval Res Lab, Mat Sci & Technol Div, Washington, DC 20375 USA.
[Schmucker, Scott W.; Baraket, Mira] Natl Res Council Postdoctoral Res Associate, Washington, DC 20375 USA.
[Delongchamp, Dean M.; Jaye, Cherno; Fisher, Daniel A.] NIST, Div Polymers, Gaithersburg, MD 20899 USA.
[Simpkins, Blake; Laskoski, Matthew; Mulvaney, Shawn P.; Sheehan, Paul E.] Naval Res Lab, Div Chem, Washington, DC 20375 USA.
[Hines, Daniel R.] Lab Phys Sci, College Pk, MD 20740 USA.
[Robinson, Jeremy T.] Naval Res Lab, Div Elect, Washington, DC 20375 USA.
[Hernandez, Sandra C.; Walton, Scott G.] Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
RP Lock, EH (reprint author), Naval Res Lab, Mat Sci & Technol Div, Washington, DC 20375 USA.
EM evgeniya.lock@nrl.navy.mil
RI Sheehan, Paul/B-4793-2010; Schmucker, Scott/D-8312-2012
OI Sheehan, Paul/0000-0003-2668-4124; Schmucker, Scott/0000-0003-2908-5282
FU Naval Research Laboratory Base Program; NRC postgraduate research
fellowship
FX E.H. Lock would like to thank K. Gaskill for the use of the Hall Probe
measurements system and M. Yoganathan and P. Wu for the polymer
resistance measurements. The work was supported by the Naval Research
Laboratory Base Program. S. W. S., S.C.H. and M.B. were National
Research Council (NRC) postgraduate research associates and were
grateful for the NRC postgraduate research fellowship.
NR 42
TC 3
Z9 3
U1 11
U2 67
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 MAY
PY 2015
VL 86
BP 288
EP 300
DI 10.1016/j.carbon.2015.01.048
PG 13
WC Chemistry, Physical; Materials Science, Multidisciplinary
SC Chemistry; Materials Science
GA CF9YB
UT WOS:000352922700034
ER
PT J
AU Abdi, F
Morscher, GN
Xue, YB
Choi, S
AF Abdi, Frank
Morscher, Gregory N.
Xue, Yibin
Choi, Sung
TI Quantification of Foreign Object Damage and Electrical Resistivity for
Ceramic Matrix Composites and Tensile Residual Strength Prediction
SO JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER-TRANSACTIONS OF THE
ASME
LA English
DT Article
ID CRACKING; CREEP
AB SiC-based ceramic matrix composites (CMC) in turbine engine applications must sustain certain foreign object impacts (FOIs) that might occur in services. Experiments and non-destructive evaluation (NDE) have illustrated good correlations between impact energy and foreign object damage (FOD) assessed using electrical resistivity (ER), acoustic emission (AE), and microscopy. A progressive failure dynamic analysis (PFDA) method is explored in understanding and predicting the damage states, ER, and residual strength after impact of CMCs. To accurately correlate the damage state with ER, the PFDA tool has been improved to incorporate the physical damage mechanisms in CMCs, which are matrix microcrack density due to both longitudinal and transverse tensile loads and the fiber breakage due to probabilistic fiber strength distribution. The predicted damage states and ER are correlated with the measurement of FOD and validated with tension after impact tests using high temperature ER. The PFDA tool has demonstrated a great potential for CMCs' FOD and residual strength predictions.
C1 [Abdi, Frank; Xue, Yibin] AlphaSTAR Corp, Long Beach, CA 90804 USA.
[Morscher, Gregory N.] Univ Akron, Auburn Sci & Engn Ctr 101, Akron, OH 44325 USA.
[Choi, Sung] NAVAIR, Mat Engn, Patuxent River, MD 20670 USA.
RP Abdi, F (reprint author), AlphaSTAR Corp, 5150 East Pacific Coast Highway,Suite 650, Long Beach, CA 90804 USA.
EM fabdi@alphastarcorp.com; gm33@uakron.edu; annayxue@gmail.com;
sung.choi1@navy.mil
FU NAVY via SBIR Phase II [N68335-12-C-0060]
FX This research was sponsored by NAVY via SBIR Phase II under the Contract
No. N68335-12-C-0060.
NR 19
TC 0
Z9 0
U1 5
U2 18
PU ASME
PI NEW YORK
PA TWO PARK AVE, NEW YORK, NY 10016-5990 USA
SN 0742-4795
EI 1528-8919
J9 J ENG GAS TURB POWER
JI J. Eng. Gas. Turbines Power-Trans. ASME
PD MAY
PY 2015
VL 137
IS 5
AR 052503
DI 10.1115/1.4028677
PG 8
WC Engineering, Mechanical
SC Engineering
GA CF9CH
UT WOS:000352858700010
ER
PT J
AU Borges, CF
AF Borges, Carlos F.
TI On polynomial function approximation with minimum mean squared relative
error and a problem of Tchebychef
SO APPLIED MATHEMATICS AND COMPUTATION
LA English
DT Article
DE Approximation; Relative error; Least-squares
AB We consider the problem of constructing a polynomial approximation to a function f(x) over the interval [-1; 1] that minimizes the mean squared relative error (MMSRE) over the interval. We establish sufficient conditions for solving the problem. We then consider a classic problem from a paper of Tchebychef and compare his solution to MMSRE, demonstrating that in some cases the latter approach can yield a more appealing solution and one that it is applicable in a number of situations where the Tchebychef approach is not. Published by Elsevier Inc.
C1 Naval Postgrad Sch, Dept Appl Math, Monterey, CA 93943 USA.
RP Borges, CF (reprint author), Naval Postgrad Sch, Dept Appl Math, Monterey, CA 93943 USA.
EM borges@nps.edu
NR 7
TC 0
Z9 0
U1 0
U2 3
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 0096-3003
EI 1873-5649
J9 APPL MATH COMPUT
JI Appl. Math. Comput.
PD MAY 1
PY 2015
VL 258
BP 22
EP 28
DI 10.1016/j.amc.2015.01.121
PG 7
WC Mathematics, Applied
SC Mathematics
GA CE2ST
UT WOS:000351668500003
ER
PT J
AU Lawlor, TM
Talmadge, MD
Murray, MM
Nelson, ME
Mueller, AC
Romanyukha, AA
Fairchild, GR
Grypp, MD
Williams, AS
AF Lawlor, Tyler M.
Talmadge, Molly D.
Murray, Mark M.
Nelson, Martin E.
Mueller, Andrew C.
Romanyukha, Alexander A.
Fairchild, Gregory R.
Grypp, Matthew D.
Williams, Anthony S.
TI THE HIGH DOSE RESPONSE AND FUNCTIONAL CAPABILITY OF THE DT-702/PD
LITHIUM FLUORIDE THERMOLUMINESCENT DOSIMETER
SO HEALTH PHYSICS
LA English
DT Article
DE detector, thermoluminescent; dose; dosimetry, personnel; exposure,
occupational
AB The United States Navy monitors the dose its radiation workers receive using the DT-702/PD thermoluminescent dosimeter, which consists of the Harshaw 8840 holder and the four-element Harshaw 8841 card. There were two main objectives of this research. In the first objective, the dosimeters were exposed to 100 Gy using electron and x-ray beams and found to respond approximately 30-40% lower than the delivered dose. No significant effect on the under-response was found when dose rate, radiation type, dosimeter position on the phantom, and dosimeter material were varied or when the card was irradiated while enclosed in its holder. Since the current naval policy is to remove from occupational use any thermoluminescent dosimeter with an accumulated deep dose equivalent of 0.05 Sv or greater, the functionality of the dosimeter was also investigated at deep dose equivalents of 0.05, 0.15, and 0.25 Sv using Co-60 and Cs-137 sources as the second main objective. All dosimeters were annealed following exposure and then exposed to 5.0 mSv from a Sr-90 source. In all cases, the dosimeters responded within 3% of the delivered dose, indicating that the dosimeters remained functional as defined by naval dosimetry requirements. However, the anneal time required to clear the thermoluminescent dosimeter's reading was found to increase approximately as the cube root with the delivered dose.
C1 [Lawlor, Tyler M.; Talmadge, Molly D.; Murray, Mark M.; Nelson, Martin E.; Mueller, Andrew C.] US Naval Acad, Dept Mech Engn, Annapolis, MD 21402 USA.
[Romanyukha, Alexander A.; Fairchild, Gregory R.; Grypp, Matthew D.; Williams, Anthony S.] Natl Naval Med Ctr, Naval Dosimetry Ctr, Bethesda, MD 20889 USA.
RP Nelson, ME (reprint author), US Naval Acad, Dept Mech Engn, 590 Holloway Rd Stop 11-C, Annapolis, MD 21402 USA.
EM nelson@usna.edu
FU U.S. Department of Defense
FX The authors would like to thank Bob Siddon of Radiation Oncology and
Ronnie Minniti of NIST for their technical assistance in collecting the
data for this project. This study was funded through U.S. Department of
Defense operational and maintenance budgets. 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, or the U.S. Government.
NR 14
TC 0
Z9 0
U1 0
U2 4
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA TWO COMMERCE SQ, 2001 MARKET ST, PHILADELPHIA, PA 19103 USA
SN 0017-9078
EI 1538-5159
J9 HEALTH PHYS
JI Health Phys.
PD MAY
PY 2015
VL 108
IS 5
BP 514
EP 519
DI 10.1097/HP.0000000000000268
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 CE5PP
UT WOS:000351887900004
PM 25811149
ER
PT J
AU Liezers, M
Fahey, AJ
Carman, AJ
Eiden, GC
AF Liezers, Martin
Fahey, Albert J.
Carman, April J.
Eiden, Gregory C.
TI The formation of trinitite-like surrogate nuclear explosion debris
(SNED) and extreme thermal fractionation of SRM-612 glass induced by
high power CW CO2 laser irradiation
SO JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
LA English
DT Article
DE Trinitite; Nuclear forensics; Elemental fractionation; Inductively
coupled plasma mass spectrometry; Laser melting; Nuclear fallout
ID LASER-ABLATION; AEROSOL; FALLOUT
AB We describe a new approach to the bench top production of surrogate nuclear explosion debris by employing high power continuous wave CO2 laser irradiation. High surface temperatures >2,500 K can be rapidly attained, allowing virtually any combination of materials to be fused into a glassy matrix that can display high levels of elemental fractionation. Examples of the laser fused glasses will be presented and compared to trinitite nuclear explosion glass along with the elemental fractionation effects that were induced in the NIST glass standard SRM-612 by this method.
C1 [Liezers, Martin; Carman, April J.; Eiden, Gregory C.] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Fahey, Albert J.] US Naval Res Lab, Washington, DC 20375 USA.
RP Liezers, M (reprint author), Pacific NW Natl Lab, POB 999, Richland, WA 99352 USA.
EM martin.liezers@pnnl.gov
FU Office of Defense Nuclear Nonproliferation Research and Development with
the U.S. Department of Energy's National Nuclear Security Administration
[DE-AC05-75RLO1830]
FX My thanks to Dr. John McCloy at Washington State University, Pullman for
bringing to our attention the CO2 laser Fulgurite article
[16] that sparked this line of research. This work was funded by the
Office of Defense Nuclear Nonproliferation Research and Development with
the U.S. Department of Energy's National Nuclear Security Administration
under contract DE-AC05-75RLO1830. The views, opinions and findings
contained within this paper are those of the authors and should not be
construed as an official position, policy or decision of the DOE unless
designated by other documentation.
NR 27
TC 3
Z9 3
U1 2
U2 17
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0236-5731
EI 1588-2780
J9 J RADIOANAL NUCL CH
JI J. Radioanal. Nucl. Chem.
PD MAY
PY 2015
VL 304
IS 2
BP 705
EP 715
DI 10.1007/s10967-014-3895-2
PG 11
WC Chemistry, Analytical; Chemistry, Inorganic & Nuclear; Nuclear Science &
Technology
SC Chemistry; Nuclear Science & Technology
GA CE5FX
UT WOS:000351857600029
ER
PT J
AU Wang, YT
Ainsworth, TL
Lee, JS
AF Wang, Yanting
Ainsworth, Thomas L.
Lee, Jong-Sen
TI On Characterizing High-Resolution SAR Imagery Using Kernel-Based Mixture
Speckle Models
SO IEEE GEOSCIENCE AND REMOTE SENSING LETTERS
LA English
DT Article
DE Distribution fitting; finite mixture model (FMM); speckle; synthetic
aperture radar (SAR); texture
AB At high resolution, synthetic aperture radar (SAR) speckle tends to be non-Gaussian distributed and diversely textured. Many parametric speckle distributions have been developed to fit specific in-scene content. In contrast, mixture models offer an empirical approximation with the potential to fit arbitrary variations. In this letter, we investigate the feasibility and the efficiency of using finite mixture models of an identical parametric kernel to characterize the wide range of high-resolution speckle. We evaluate and compare the capability of mixture fitting with gamma, K, and G(0) kernels against various scene types. Despite the characterization disparity among these base kernels, we show that using any of them in a mixture setting rapidly improves speckle modeling. Finite gamma mixtures, even with a simple kernel form, are applicable to high-resolution SAR imagery for consistent description of complex textured speckle variations.
C1 [Wang, Yanting; Ainsworth, Thomas L.; Lee, Jong-Sen] US Navy, Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
RP Wang, YT (reprint author), US Navy, Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
EM yanting.wang@nrl.navy.mil; ainsworth@nrl.navy.mil;
jong_sen_lee@yahoo.com
NR 16
TC 3
Z9 4
U1 0
U2 5
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1545-598X
EI 1558-0571
J9 IEEE GEOSCI REMOTE S
JI IEEE Geosci. Remote Sens. Lett.
PD MAY
PY 2015
VL 12
IS 5
BP 968
EP 972
DI 10.1109/LGRS.2014.2370095
PG 5
WC Geochemistry & Geophysics; Engineering, Electrical & Electronic; Remote
Sensing; Imaging Science & Photographic Technology
SC Geochemistry & Geophysics; Engineering; Remote Sensing; Imaging Science
& Photographic Technology
GA CD9IQ
UT WOS:000351412200010
ER
PT J
AU Marmorino, G
Brozena, J
Smith, GB
Liang, R
Vermillion, M
Miller, WD
AF Marmorino, George
Brozena, John
Smith, Geoffrey B.
Liang, Robert
Vermillion, Michael
Miller, W. D.
TI Lidar-Measured Bernoulli Response to Tidal Flow Over a Sill
SO IEEE GEOSCIENCE AND REMOTE SENSING LETTERS
LA English
DT Article
DE Airborne lidar; Bernoulli equation; flow over a sill; submesoscale ocean
altimetry
ID AIRBORNE; TOPOGRAPHY; EXCHANGE; SYSTEM
AB An airborne scanning topographic lidar is shown to detect a local sea-level change induced by tidally forced flow over a 60-m-deep estuarine sill. As the flow speeds up over the sill, the sea level can be expected to decrease to conserve total flow energy according to the Bernoulli equation. The measurements resolve this decrease, showing a drop in sea level over the sill crest of about 0.1 m near the start of flood tide, increasing to about 0.25 m an hour later. These values are shown to be consistent with the Bernoulli effect, but only if a fraction (about 60%) of the upstream water column flows over the sill. By inference, the remaining fraction must deflect horizontally around the sill to flow through an adjacent channel, an effect consistent with laboratory studies of stratified flow past a three-dimensional (3-D) barrier with a gap. The lidar measurements, therefore, provide some insight into the 3-D flow response.
C1 [Marmorino, George; Smith, Geoffrey B.; Miller, W. D.] US Navy, Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
[Brozena, John; Liang, Robert; Vermillion, Michael] US Navy, Res Lab, Marine Sci Div, Washington, DC 20375 USA.
RP Marmorino, G (reprint author), US Navy, Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
EM marmorino@nrl.navy.mil; john.brozena@nrl.navy.mil;
geoffrey.smith@nrl.navy.mil; robert.liang@nrl.navy.mil;
michael.vermillion@nrl.navy.mil; dave.miller@nrl.navy.mil
OI Miller, W. David/0000-0002-4940-5987
FU Office of Naval Research [N00014-10-WX-21119]; Naval Research Laboratory
projects [74-8753, 72-9201]
FX This work was made possible through the support of the Office of Naval
Research under Grant N00014-10-WX-21119, and was conducted under Naval
Research Laboratory projects 74-8753 and 72-9201. This is NRL
contribution NRL/JA/7230-14-0156.
NR 17
TC 0
Z9 0
U1 0
U2 4
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1545-598X
EI 1558-0571
J9 IEEE GEOSCI REMOTE S
JI IEEE Geosci. Remote Sens. Lett.
PD MAY
PY 2015
VL 12
IS 5
BP 1116
EP 1120
DI 10.1109/LGRS.2014.2385599
PG 5
WC Geochemistry & Geophysics; Engineering, Electrical & Electronic; Remote
Sensing; Imaging Science & Photographic Technology
SC Geochemistry & Geophysics; Engineering; Remote Sensing; Imaging Science
& Photographic Technology
GA CD9IQ
UT WOS:000351412200040
ER
PT J
AU Mahadik, NA
Stahlbush, RE
AF Mahadik, N. A.
Stahlbush, R. E.
TI Gettering of Luminescent Point Defects along Step Bunching in 4H-SiC
Epitaxial Layers by Ultraviolet Excitation
SO JOURNAL OF ELECTRONIC MATERIALS
LA English
DT Article; Proceedings Paper
CT 56th Electronic Materials Conference
CY JUN 25-27, 2014
CL Univ Calif Santa Barbara, Santa Barbara, CA
SP Amer Elements, Sandia Natl Labs
HO Univ Calif Santa Barbara
DE Defects in silicon carbide; epitaxial step bunching; triangular-shaped
defects in SiC
ID CHEMICAL-VAPOR-DEPOSITION; SILICON-CARBIDE; STACKING-FAULTS; PIN DIODES;
SURFACE; GROWTH; WAFERS; PHOTOLUMINESCENCE; PROPAGATION; 6H
AB Luminescent lines, perpendicular to the step flow direction, were observed in SiC epitaxial layers with ultraviolet (UV) excitation of the sample surface. These lines appear at step bunching sites in SiC epilayers with UV illumination of greater than 3 s at 50 W/cm(2). They become brighter and wider, reaching a width of similar to 5 mu m. Zygo profilometry shows that there is a shallow triangular-shaped valley at the surface to the left of the luminescent lines, with reference to the step flow direction. The left apex of the valley starts at a local defect that is created during the epitaxial growth, and the valley fans out during subsequent epitaxial growth. The luminescent lines are at the right-side boundary of the triangle. Atomic force microscopy (AFM) profilometry shows that at this boundary there is a double macrostep at the sample surface, which is between 2.5 nm and 8 nm high. This relates to 5 to 15 bilayer steps. The first step is always observed to be smaller than the second one. There is a valley approximately 4 nm to 8 nm deep between them. The luminescent lines appear due to UV-activated diffusion and gettering of point defects to the double macrostep.
C1 [Mahadik, N. A.; Stahlbush, R. E.] Naval Res Lab, Washington, DC 20375 USA.
RP Mahadik, NA (reprint author), Naval Res Lab, Washington, DC 20375 USA.
EM nadeem.mahadik@nrl.navy.mil
FU Office of Naval Research
FX This work was supported by the Office of Naval Research.
NR 24
TC 0
Z9 0
U1 1
U2 11
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0361-5235
EI 1543-186X
J9 J ELECTRON MATER
JI J. Electron. Mater.
PD MAY
PY 2015
VL 44
IS 5
BP 1306
EP 1310
DI 10.1007/s11664-014-3616-1
PG 5
WC Engineering, Electrical & Electronic; Materials Science,
Multidisciplinary; Physics, Applied
SC Engineering; Materials Science; Physics
GA CE2RH
UT WOS:000351663100009
ER
PT J
AU Cortes, FJQ
Phillips, J
AF Quintero Cortes, Francisco Javier
Phillips, Jonathan
TI Novel Materials with Effective Super Dielectric Constants for Energy
Storage
SO JOURNAL OF ELECTRONIC MATERIALS
LA English
DT Article; Proceedings Paper
CT 56th Electronic Materials Conference
CY JUN 25-27, 2014
CL Univ Calif Santa Barbara, Santa Barbara, CA
SP Amer Elements, Sandia Natl Labs
HO Univ Calif Santa Barbara
DE Dielectric; capacitors; energy storage
ID IRON PENTACARBONYL DECOMPOSITION; BARIUM-TITANATE CERAMICS; BATIO3-NI
COMPOSITES; CRITICAL-BEHAVIOR; CONDUCTIVITY; TEMPERATURE; ENHANCEMENT;
CACU3TI4O12; CAPACITANCE; THRESHOLD
AB To test a theory of the recently discovered phenomenon of super dielectric behavior at very low frequency, the dielectric constants of several 'pastes', composed of porous alumina powders filled to the point of incipient wetness with water containing dissolved sodium chloride, were measured. The effective dielectric low frequency constants of some of the pastes were greater than 10(10), dramatically higher than that of any material ever reported. Moreover, the total energy density reported for one capacitor generated with NaCl-based super dielectric material is marginally higher than found in any prior report. These results are consistent with this recently postulated model of low frequency super dielectric behavior in porous, non-conductive materials saturated with ion-containing liquids: upon the application of an electric field, ions dissolved in the saturating liquid contained in the pores will travel to the ends of pore-filling liquid droplets creating giant dipoles. The fields of these giant dipoles oppose the applied field, reducing the net field created per unit of charge on the capacitor plates, effectively increasing charge/voltage ratio, hence capacitance. This is simply a version of the theory of 'polarizable media' found in most classic texts on electromagnetism. Other observations reported here include (1) the impact of ion concentration on dielectric values, (2) a maximum voltage similar to that associated with the electrical breakdown of water, (3) the loss of capacitance upon drying, (4) the recovery of capacitance upon the addition of water to a dry super dielectric material, and (5) the linear relationship between capacitance and inverse thickness. All observations are consistent with the earlier proposed model of the super dielectric phenomenon. An extrapolation of results suggests this technology can lead to energy density greater than the best lithium-ion battery.
C1 [Quintero Cortes, Francisco Javier] Univ Colombia, Dept Chem Engn, Bogota, Colombia.
[Phillips, Jonathan] Naval Postgrad Sch, Monterey, CA 93943 USA.
RP Phillips, J (reprint author), Naval Postgrad Sch, Monterey, CA 93943 USA.
EM jphillip@nps.edu
NR 35
TC 4
Z9 4
U1 8
U2 102
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0361-5235
EI 1543-186X
J9 J ELECTRON MATER
JI J. Electron. Mater.
PD MAY
PY 2015
VL 44
IS 5
BP 1367
EP 1376
DI 10.1007/s11664-015-3641-8
PG 10
WC Engineering, Electrical & Electronic; Materials Science,
Multidisciplinary; Physics, Applied
SC Engineering; Materials Science; Physics
GA CE2RH
UT WOS:000351663100019
ER
PT J
AU Kwon, YW
Millhouse, SC
Arceneux, S
AF Kwon, Y. W.
Millhouse, S. C.
Arceneux, S.
TI Study of composite plate in water with transient and steady state
motions
SO COMPOSITE STRUCTURES
LA English
DT Article
DE Hydrodynamic loading; Fluid-structure interaction; Transient motion;
Steady state motion
ID FLUID-STRUCTURE INTERACTION; LOW-REYNOLDS-NUMBER; FINITE-ELEMENT; DRAG;
BODY; BEHAVIOR; SPHERE; FORCE
AB Hydrodynamic loading and dynamic response of a composite plate were measured inside a tow tank while the speed of the plate increased from zero to various steady-state values and remained at the steady state values. Strain responses of the plate were recorded using strain gages. To determine the effect of the composite plate with fluid-structure interaction, a stiffer and heavier aluminum plate was compared to the composite plate. The composite plate was tested under various setting angles relative to the towing direction. Some experimental data were compared to numerical results at steady state motions, and they agreed well each other. The study showed that the hydrodynamic loading was greater on the polymer composite plate than on the aluminum plate of the same size. Furthermore, the hydrodynamic force was much greater during the transient period of the increasing speed than at the final steady state speed. The ratio of the peak strain in the composite plate during the transient period to the strain at the steady state motion depended on the plate speed and the setting angles significantly. Therefore, design and analysis of composite structures moving in water should consider the hydrodynamic loading during the transient motion including fluid-structure interaction. Published by Elsevier Ltd.
C1 [Kwon, Y. W.; Millhouse, S. C.] Naval Postgrad Sch, Dept Mech & Aerosp Engn, Monterey, CA 93943 USA.
[Arceneux, S.] US Naval Acad, Dept Mech Engn, Annapolis, MD 21402 USA.
RP Kwon, YW (reprint author), Naval Postgrad Sch, Dept Mech & Aerosp Engn, Monterey, CA 93943 USA.
EM ywkwon@nps.edu
FU Solid Mechanics Program of United States Office of Naval Research (ONR)
FX The work is partially funded by the Solid Mechanics Program of United
States Office of Naval Research (ONR). The program manager is Dr. Yapa
Rajapakse.
NR 19
TC 1
Z9 1
U1 1
U2 5
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 MAY
PY 2015
VL 123
BP 393
EP 400
DI 10.1016/j.compstruct.2014.12.058
PG 8
WC Materials Science, Composites
SC Materials Science
GA CD0SJ
UT WOS:000350783900038
ER
PT J
AU Aubry, R
Mestreau, EL
Dey, S
Karamete, BK
Gayman, D
AF Aubry, R.
Mestreau, E. L.
Dey, S.
Karamete, B. K.
Gayman, D.
TI On the 'most normal' normal - Part 2
SO FINITE ELEMENTS IN ANALYSIS AND DESIGN
LA English
DT Article
DE Surface triangulation; Point normal; 'Most normal' normal; Generalized
Voronoi diagram on the sphere; Boundary layer mesh generation
ID VORONOI DIAGRAMS; MEDIAL AXIS; GENERATION; RIDGES
AB In [1], a definition is given of the 'most normal' normal. This is the normal that minimizes the maximal angle with a given set of normals. The algorithm proposed does indeed compute a normal that verifies he previous properly. However, this may not always be the 'most normal' normal. The previous normal should have more appropriately been called the 'most visible' normal. In the present work, an algorithm is designed to compute the real 'most normal' normal, namely the normal that maximizes the minimum angle with the planes carried by the triangles surrounding a point. This normal is the optimal point normal for boundary layer mesh generation if it is in the visibility cone. The algorithm consists in computing the generalized Voronoi diagram on the sphere of the edges created by the intersection between the triangles and the sphere. Numerical results illustrate the method, and compare with the previous algorithm. (C) 2015 Elsevier B.V. All rights reserved,
C1 [Aubry, R.; Mestreau, E. L.; Karamete, B. K.; Gayman, D.] Suter Def Solut, Mclean, VA 22102 USA.
[Dey, S.] US Naval Res Lab, Washington, DC 20375 USA.
RP Aubry, R (reprint author), Suter Def Solut, 1501 Farm Credit Dr,Suite 2300, Mclean, VA 22102 USA.
EM romain.aubry.ctr.fr@nrl.navy.mil
OI Aubry, Romain/0000-0002-4094-1636
FU DoD HPCMP CREATE Program
FX This work was partly supported by the DoD HPCMP CREATE Program.
NR 43
TC 1
Z9 1
U1 0
U2 3
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0168-874X
EI 1872-6925
J9 FINITE ELEM ANAL DES
JI Finite Elem. Anal. Des.
PD MAY
PY 2015
VL 97
BP 54
EP 63
DI 10.1016/j.finel.2015.01.005
PG 10
WC Mathematics, Applied; Mechanics
SC Mathematics; Mechanics
GA CC3BA
UT WOS:000350217900004
ER
PT J
AU Huang, J
Alexander-Webber, JA
Janssen, TJBM
Tzalenchuk, A
Yager, T
Lara-Avila, S
Kubatkin, S
Myers-Ward, RL
Wheeler, VD
Gaskill, DK
Nicholas, RJ
AF Huang, J.
Alexander-Webber, J. A.
Janssen, T. J. B. M.
Tzalenchuk, A.
Yager, T.
Lara-Avila, S.
Kubatkin, S.
Myers-Ward, R. L.
Wheeler, V. D.
Gaskill, D. K.
Nicholas, R. J.
TI Hot carrier relaxation of Dirac fermions in bilayer epitaxial graphene
SO JOURNAL OF PHYSICS-CONDENSED MATTER
LA English
DT Article
DE hot carriers; bilayer graphene; energy loss rate; magnetotransport
ID 2-DIMENSIONAL GAS; BERRYS PHASE; HETEROSTRUCTURES; TEMPERATURES;
OSCILLATIONS; TRANSPORT; ELECTRONS
AB Energy relaxation of hot Dirac fermions in bilayer epitaxial graphene is experimentally investigated by magnetotransport measurements on Shubnikov-de Haas oscillations and weak localization. The hot-electron energy loss rate is found to follow the predicted Bloch-Gruneisen power-law behaviour of T-4 at carrier temperatures from 1.4K up to similar to 100 K, due to electron-acoustic phonon interactions with a deformation potential coupling constant of 22 eV. A carrier density dependence n(e)(-1.5) in the scaling of the T-4 power law is observed in bilayer graphene, in contrast to the n(e)(-0.5) dependence in monolayer graphene, leading to a crossover in the energy loss rate as a function of carrier density between these two systems. The electron-phonon relaxation time in bilayer graphene is also shown to be strongly carrier density dependent, while it remains constant for a wide range of carrier densities in monolayer graphene. Our results and comparisons between the bilayer and monolayer exhibit a more comprehensive picture of hot carrier dynamics in graphene systems.
C1 [Huang, J.; Alexander-Webber, J. A.; Nicholas, R. J.] Univ Oxford, Dept Phys, Clarendon Lab, Oxford OX1 3PU, England.
[Janssen, T. J. B. M.; Tzalenchuk, A.] Natl Phys Lab, Teddington TW11 0LW, Greater London, England.
[Tzalenchuk, A.] Univ London, Dept Phys, Egham TW20 0EX, Surrey, England.
[Yager, T.; Lara-Avila, S.; Kubatkin, S.] Chalmers, Dept Microtechnol & Nanosci, S-41296 Gothenburg, Sweden.
[Myers-Ward, R. L.; Wheeler, V. D.; Gaskill, D. K.] US Naval Res Lab, Washington, DC 20375 USA.
RP Huang, J (reprint author), Univ Oxford, Dept Phys, Clarendon Lab, Parks Rd, Oxford OX1 3PU, England.
EM r.nicholas@physics.ox.ac.uk
RI Kubatkin, Sergey/O-6092-2014;
OI Kubatkin, Sergey/0000-0001-8551-9247; Nicholas,
Robin/0000-0001-9025-0465
FU UK EPSRC; NMS; EU; EMRP GraphOhm; US Office of Naval Research
FX This work was supported by the UK EPSRC and NMS, EU Graphene Flagship,
EMRP GraphOhm and also by the US Office of Naval Research.
NR 47
TC 9
Z9 9
U1 5
U2 32
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0953-8984
EI 1361-648X
J9 J PHYS-CONDENS MAT
JI J. Phys.-Condes. Matter
PD APR 29
PY 2015
VL 27
IS 16
AR 164202
DI 10.1088/0953-8984/27/16/164202
PG 7
WC Physics, Condensed Matter
SC Physics
GA CG5CI
UT WOS:000353308300003
PM 25835029
ER
PT J
AU Fears, KP
Gonzalez-Begne, M
Love, CT
Day, DE
Koo, H
AF Fears, Kenan P.
Gonzalez-Begne, Mireya
Love, Corey T.
Day, Delbert E.
Koo, Hyun
TI Surface-Induced Changes in the Conformation and Glucan Production of
Glucosyltransferase Adsorbed on Saliva-Coated Hydroxyapatite
SO LANGMUIR
LA English
DT Article
ID PROTEIN SECONDARY STRUCTURE; CIRCULAR-DICHROISM SPECTRA; TRANSFORM IR
SPECTROSCOPY; STREPTOCOCCUS-MUTANS; INFRARED-SPECTROSCOPY; BIOFILM
FORMATION; ENZYME-ACTIVITY; IN-SITU; ADSORPTION; PELLICLE
AB Glucosyltransferases (Gtfs) from S. mutans play critical roles in the development of virulent oral biofilms associated with dental caries disease. Gtfs adsorbed to the tooth surface produce glucans that promote local microbial colonization and provide an insoluble exopolysaccharides (EPS) matrix that facilitates biofilm initiation. Moreover, agents that inhibit the enzymatic activity of Gtfs in solution often have reduced or no effects on surface-adsorbed Gtfs. This study elucidated the mechanisms responsible for the differences in functionality that GtfB exhibits in solution vs surface-adsorbed. Upon adsorption to planar fused-quartz substrates, GtfB displayed a 37% loss of helices and 36% increase of beta-sheets, as determined by circular dichroism (CD) spectroscopy, and surface-induced conformational changes were more severe on substrates modified with CH3- and NH2-terminated self-assembled monolayers. GtfB also underwent substantial conformation changes when adsorbing to hydroxyapatite (HA) microspheres, likely due to electrostatic interactions between negatively charged GtfB and positively charged HA crystal faces. Conformational changes were lessened when HA surfaces were coated with saliva (sHA) prior to GtfB adsorption. Furthermore, GtfB remained highly active on sHA, as determined by in situ attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy, producing glucans that were structurally different than GtfB in solution and known to increase the accumulation and virulence of biofilms. Our data provide the first insight into the structural underpinnings governing Gtf conformation and enzymatic function that occur on tooth surfaces in vivo, which may lead to designing potent new inhibitors and improved strategies to combat the formation of pathogenic oral biofilms.
C1 [Fears, Kenan P.; Love, Corey T.] US Naval Res Lab, Div Chem, Washington, DC 20375 USA.
[Gonzalez-Begne, Mireya] Univ Rochester, Med Ctr, Dept Dent, Rochester, NY 14642 USA.
[Gonzalez-Begne, Mireya] Univ Rochester, Med Ctr, Ctr Oral Biol, Rochester, NY 14642 USA.
[Day, Delbert E.] Missouri Univ Sci & Technol, Dept Mat Sci & Engn, Ctr Bone & Tissue Repair & Regenerat, Rolla, MO 65409 USA.
[Koo, Hyun] Univ Penn, Biofilm Res Labs, Levy Ctr Oral Hlth, Dept Orthodont, Philadelphia, PA 19104 USA.
[Koo, Hyun] Univ Penn, Div Pediat Dent & Community Oral Hlth, Sch Dent Med, Philadelphia, PA 19104 USA.
RP Fears, KP (reprint author), US Naval Res Lab, Div Chem, Washington, DC 20375 USA.
EM kenan.fears@nrl.navy.mil; koohy@dental.upenn.edu
FU Office of Naval Research through basic research program at the Naval
Research Laboratory; National Science Foundation [EFRI-1137186];
National Institute of Dental and Craniofacial Research [DE16139/DE18023]
FX K.P.F. was supported by the Office of Naval Research through the basic
research program at the Naval Research Laboratory. M.G. and H.K were
supported by the National Science Foundation (EFRI-1137186; HK) and by
the National Institute of Dental and Craniofacial Research
(DE16139/DE18023). The authors also thank Dr. William H. Bowen for
kindly providing the anti-GtfB mAb.
NR 53
TC 5
Z9 5
U1 3
U2 16
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0743-7463
J9 LANGMUIR
JI Langmuir
PD APR 28
PY 2015
VL 31
IS 16
BP 4654
EP 4662
DI 10.1021/la504461h
PG 9
WC Chemistry, Multidisciplinary; Chemistry, Physical; Materials Science,
Multidisciplinary
SC Chemistry; Materials Science
GA CH2OJ
UT WOS:000353864200009
PM 25867796
ER
PT J
AU Pullen, J
Gordon, AL
Flatau, M
Doyle, JD
Villanoy, C
Cabrera, O
AF Pullen, Julie
Gordon, Arnold L.
Flatau, Maria
Doyle, James D.
Villanoy, Cesar
Cabrera, Olivia
TI Multiscale influences on extreme winter rainfall in the Philippines
SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
LA English
DT Article
DE coupled modeling
ID MADDEN-JULIAN OSCILLATION; TROPICAL INTRASEASONAL OSCILLATION;
PREDICTION SYSTEM COAMPS; AIR-SEA INTERACTIONS; MARITIME CONTINENT;
PRECIPITATION EVENT; MJO; OCEAN; PREDICTABILITY; VARIABILITY
AB During 2007-2008, the Philippines experienced the greatest rainfall in 40 winters. We use a combination of observations (including 48 meteorological stations distributed throughout the islands, Tropical Rainfall Measuring Mission satellite-sensed precipitation, and shipboard measurements) along with a high-resolution two-way coupled ocean/atmosphere model (3km Coupled Ocean-Atmosphere Mesoscale Prediction System (COAMPS)(R)) to examine this anomalous season. As expected from climatology, rainfall was greatest on the eastern side of the archipelago, with seasonal totals exceeding 4000mm in some locations. A moderate to strong La Nina increased the rainfall across the region. But discrete precipitation events delivered the bulk of the rain to the area and coincided with intense Madden-Julian oscillation activity over the archipelago and a late February cold surge. General patterns and magnitudes of rainfall produced by the two-way coupled model agreed with observations from land and from space. During the discrete events, the 3km COAMPS also produced high amounts of precipitation in the mountainous parts of central Philippines. Direct observations were limited in this region. However, the government reported river flooding and evacuations in Mindoro during February 2008 as a result of significant rainfall. In addition, shipboard measurements from late January 2008 (collected by the Philippines Straits Dynamics Experiment) reveal a fresh lens of water to the west of the island of Mindoro, consistent with high freshwater discharge (river runoff) into the coastal area.
C1 [Pullen, Julie] Stevens Inst Technol, Hoboken, NJ 07030 USA.
[Gordon, Arnold L.] Columbia Univ, Lamont Doherty Earth Observ, Palisades, NY USA.
[Flatau, Maria; Doyle, James D.] Naval Res Lab, Monterey, CA USA.
[Villanoy, Cesar; Cabrera, Olivia] Univ Philippines Diliman, Inst Marine Sci, Quezon City, Philippines.
RP Pullen, J (reprint author), Stevens Inst Technol, Hoboken, NJ 07030 USA.
EM Julie.Pullen@Stevens.edu
RI Gordon, Arnold/H-1049-2011
OI Gordon, Arnold/0000-0001-6480-6095
FU Office of Naval Research (ONR) [N00014-10-1-0300, 0601153N]; ONR
[N00014-09-1-0582, N00014-10-1-0426]
FX Data contributing to the results of this research can be made available
by the author upon request. COAMPS (R) is a registered trademark of the
Naval Research Laboratory. The research support for J. Pullen was
provided by Office of Naval Research (ONR) grant N00014-10-1-0300. A.L.
Gordon was funded by ONR grants N00014-09-1-0582 and N00014-10-1-0426.
M. Flatau and J. Doyle were supported by the Office of Naval Research
(ONR) program element 0601153N. Special thanks to PAGASA for processing
the station data at higher temporal frequency. Lamont-Doherty Earth
Observatory contribution 7886.
NR 67
TC 4
Z9 4
U1 5
U2 13
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-897X
EI 2169-8996
J9 J GEOPHYS RES-ATMOS
JI J. Geophys. Res.-Atmos.
PD APR 27
PY 2015
VL 120
IS 8
BP 3292
EP 3309
DI 10.1002/2014JD022645
PG 18
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA CI5UU
UT WOS:000354826100018
ER
PT J
AU Tomer, D
Rajput, S
Hudy, LJ
Li, CH
Li, L
AF Tomer, D.
Rajput, S.
Hudy, L. J.
Li, C. H.
Li, L.
TI Carrier transport in reverse-biased graphene/semiconductor Schottky
junctions
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID SOLAR-CELLS; DIODES; BARRIER; DETECTOR; GAAS
AB Reverse-biased graphene (Gr)/semiconductor Schottky diodes exhibit much enhanced sensitivity for gas sensing. However, carrier transport across these junctions is not fully understood yet. Here, Gr/SiC, Gr/GaAs, and Gr/Si Schottky junctions under reverse bias are investigated by temperature-dependent current-voltage measurements. A reduction in barrier height with increasing bias is observed for all junctions, suggesting electric-field enhanced thermionic emission. Further analysis of the field dependence of the reverse current reveals that while carrier transport in Gr/SiC Schottky junctions follows the Poole-Frenkel mechanism, it deviates from both the Poole-Frankel and Schottky mechanisms in Gr/Si and Gr/GaAs junctions, particularly for low temperatures and fields. (C) 2015 AIP Publishing LLC.
C1 [Tomer, D.; Rajput, S.; Hudy, L. J.; Li, L.] Univ Wisconsin, Dept Phys, Milwaukee, WI 53211 USA.
[Li, C. H.] Naval Res Lab, Washington, DC 20375 USA.
RP Tomer, D (reprint author), Univ Wisconsin, Dept Phys, Milwaukee, WI 53211 USA.
EM dtomer@uwm.edu
FU U.S. Department of Energy, Office of Basic Energy Sciences, Division of
Materials Sciences and Engineering [DE-FG02-07ER46228]
FX Research supported by the U.S. Department of Energy, Office of Basic
Energy Sciences, Division of Materials Sciences and Engineering under
Award No. DE-FG02-07ER46228.
NR 38
TC 4
Z9 4
U1 18
U2 72
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0003-6951
EI 1077-3118
J9 APPL PHYS LETT
JI Appl. Phys. Lett.
PD APR 27
PY 2015
VL 106
IS 17
AR 173510
DI 10.1063/1.4919727
PG 4
WC Physics, Applied
SC Physics
GA CH2ES
UT WOS:000353839100066
ER
PT J
AU Kim, M
Bewley, WW
Canedy, CL
Kim, CS
Merritt, CD
Abell, J
Vurgaftman, I
Meyer, JR
AF Kim, Mijin
Bewley, William W.
Canedy, Chadwick L.
Kim, Chul Soo
Merritt, Charles D.
Abell, Joshua
Vurgaftman, Igor
Meyer, Jerry R.
TI High-power continuous-wave interband cascade lasers with 10 active
stages
SO OPTICS EXPRESS
LA English
DT Article
AB We report the pulsed and continuous wave (cw) performance of 10-stage interband cascade lasers (ICLs) emitting at both lambda approximate to 3.2 mu m and lambda approximate to 3.45 mu m. The slope efficiency is higher while the external differential quantum efficiency per stage remains about the same when comparison is made to earlier results for 7-stage ICLs with similar carrier-rebalanced designs. At T = 25 degrees C, an 18-mu m-wide ridge with 4.5 mm cavity length and high-reflection/anti-reflection coatings emits up to 464 mW of cw output power with beam quality factor M-2 = 1.9, for higher brightness than has ever been reported previously for an ICL. When the cavity length is reduced to 1 mm, both the 10-stage and 7-stage devices reach 18% cw wallplug efficiency at T = 25 degrees C. (C) 2015 Optical Society of America
C1 [Kim, Mijin] Sotera Def Solut Inc, Columbia, MD 21046 USA.
[Bewley, William W.; Canedy, Chadwick L.; Kim, Chul Soo; Merritt, Charles D.; Abell, Joshua; Vurgaftman, Igor; Meyer, Jerry R.] Naval Res Lab, Washington, DC 20375 USA.
RP Vurgaftman, I (reprint author), Naval Res Lab, Code 5613, Washington, DC 20375 USA.
EM MWIR_lasers@nrl.navy.mil
NR 16
TC 13
Z9 13
U1 1
U2 18
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 APR 20
PY 2015
VL 23
IS 8
BP 9664
EP 9672
DI 10.1364/OE.23.009664
PG 9
WC Optics
SC Optics
GA CG4ZY
UT WOS:000353299300011
PM 25969003
ER
PT J
AU Withers, LP
Narducci, FA
AF Withers, L. P., Jr.
Narducci, F. A.
TI A bilocal picture of quantum mechanics
SO JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL
LA English
DT Article
DE propagators; bilocal events; probability density; current density;
Born's rule; probabilistic Schrodinger equation
AB A new, bilocal picture of quantum mechanics is developed. We show that Born's rule supports a virtual probability for a particle to arrive, as a wave, at any two locations (but no more). We discuss two ways to implement twin detectors suitable for detecting bilocal arrivals. The bilocal picture sheds light on currents in quantum mechanics. We find there are two types of bilocal current density, whose polar form and related mean velocities are given. In the bilocal context, the definitions of both current types simplify. In the unilocal case, the two types become the usual current and a fluctuation current. Their respective mean velocity fields are the usual de Broglie-Madelung-Bohm velocity and the imaginary (osmotic) velocity. We obtain a new, probabilistic Schrodinger equation for the bilocal probability by itself, solve the example of a free particle, develop the dyadic stationary states, and find that the von Neumann equation for time-varying density of states follows directly from the new equation. We also show how to include the electromagnetic potentials in this probabilistic Schrodinger equation.
C1 [Withers, L. P., Jr.] George Mason Univ, Sch Phys Astron & Computat Sci, Fairfax, VA 22030 USA.
[Narducci, F. A.] Naval Air Syst Command, Patuxent River, MD USA.
RP Withers, LP (reprint author), George Mason Univ, Sch Phys Astron & Computat Sci, Fairfax, VA 22030 USA.
EM lpwithers@mitre.org; francesco.narducci@navy.mil
NR 25
TC 2
Z9 2
U1 1
U2 4
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 1751-8113
EI 1751-8121
J9 J PHYS A-MATH THEOR
JI J. Phys. A-Math. Theor.
PD APR 17
PY 2015
VL 48
IS 15
AR 155304
DI 10.1088/1751-8113/48/15/155304
PG 23
WC Physics, Multidisciplinary; Physics, Mathematical
SC Physics
GA CE8SG
UT WOS:000352113800010
ER
PT J
AU Wang, Z
Zhang, G
Peng, MS
Chen, JH
Lin, SJ
AF Wang, Zhuo
Zhang, Gan
Peng, Melinda S.
Chen, Jan-Huey
Lin, Shian-Jiann
TI Predictability of Atlantic tropical cyclones in the GFDL HiRAM model
SO GEOPHYSICAL RESEARCH LETTERS
LA English
DT Article
DE predictability of Atlantic tropical cyclones; regional Hadley
circulation; seasonal prediction
ID HURRICANE ACTIVITY; EL-NINO; VARIABILITY; CLIMATOLOGY; SIMULATIONS;
MECHANISMS; INCREASE; TRACKS
AB The hindcasts of the Geophysical Fluid Dynamics Laboratory (GFDL) High-Resolution Atmospheric Model (HiRAM), which skillfully predicted the interannual variability of Atlantic tropical cyclone (TC) frequency, were analyzed to investigate what key circulation systems a model must capture in order to skillfully predict TCs. The HiRAM reproduced the leading empirical orthogonal function mode (M1) of the interannual variability of the Atlantic Hadley circulation and its impacts on environmental conditions. M1 represents the variability of the Intertropical Convergence Zone (ITCZ) intensity and width, and the predictability of Atlantic TCs can be explained by the lag correlation between M1 and SST in preceding months. Although the ITCZ displacement was not well predicted by the HiRAM hindcasts, it does not affect the prediction of the basin-wide hurricane count. The analyses suggest that the leading mode of the variability of the regional Hadley circulation can serve as a useful metric to evaluate the performance of global models in TC seasonal prediction.
C1 [Wang, Zhuo; Zhang, Gan] Univ Illinois, Dept Atmospher Sci, Urbana, IL 61820 USA.
[Peng, Melinda S.] Naval Res Lab, Monterey, CA USA.
[Chen, Jan-Huey] Univ Corp Atmospher Res, Geophys Fluid Dynam Lab, Princeton, NJ USA.
[Lin, Shian-Jiann] NOAA, Geophys Fluid Dynam Lab, Princeton, NJ USA.
RP Wang, Z (reprint author), Univ Illinois, Dept Atmospher Sci, Urbana, IL 61820 USA.
EM zhuowang@illinois.edu
RI Zhang, Gan/C-5932-2016
OI Zhang, Gan/0000-0002-7323-3409
FU National Science Foundation [AGS-1118429]; Office of Naval Research
[N00014-11-1-0446]
FX The ERA-Interim reanalysis is available from the NCAR CISL Research Data
Archive, and the HURDAT2 data are available at
http://www.aoml.noaa.gov/hrd/hurdat/Data_Storm.html. This work is
supported by the National Science Foundation grant AGS-1118429 and the
Office of Naval Research grant N00014-11-1-0446.
NR 29
TC 2
Z9 2
U1 2
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 APR 16
PY 2015
VL 42
IS 7
BP 2547
EP 2554
DI 10.1002/2015GL063587
PG 8
WC Geosciences, Multidisciplinary
SC Geology
GA CH4FL
UT WOS:000353988700060
ER
PT J
AU Venn-Watson, SK
Jensen, ED
Smith, CR
Xitco, M
Ridgway, SH
AF Venn-Watson, Stephanie K.
Jensen, Eric D.
Smith, Cynthia R.
Xitco, Mark
Ridgway, Sam H.
TI Evaluation of annual survival and mortality rates and longevity of
bottlenose dolphins (Tursiops truncatus) at the United States Navy
Marine Mammal Program from 2004 through 2013
SO JAVMA-JOURNAL OF THE AMERICAN VETERINARY MEDICAL ASSOCIATION
LA English
DT Article
ID PARAINFLUENZA VIRUS; POPULATION HEALTH; SEA LIONS; AGE; COLLECTION;
IMPACTS; FLORIDA; SIZE
AB Objective-To evaluate annual survival and mortality rates and the longevity of a managed population of bottlenose dolphins (Tursiops truncatus).
Design-Retrospective cohort study.
Animals-103 bottlenose dolphins at the US Navy Marine Mammal Program (MMP).
Procedures-Population age structures, annual survival and crude mortality rates, and median age at death for dolphins > 30 days old were determined from 2004 through 2013.
Results-During 2004 through 2013, the annual survival rates for MMP dolphins ranged from 0.98 to 1.0, and the annual crude mortality rates ranged from 0% to 5%, with a mean of 2.7%. The median age at death was 30.1 years from 2004 through 2008 and increased to 32 years from 2009 through 2013. The maximum age for a dolphin in the study was 52 years.
Conclusions and Clinical Relevance-Results indicated that the annual mortality rates were low and survival rates were high for dolphins in the MMP from 2004 through 2013 and that the median age at death for MMP dolphins during that time was over 10 years greater than that reported in free-ranging dolphins. These findings were likely attributable to the continually improving care and husbandry of managed dolphin populations.
C1 [Venn-Watson, Stephanie K.; Smith, Cynthia R.; Ridgway, Sam H.] Natl Marine Mammal Fdn, San Diego, CA 92106 USA.
[Jensen, Eric D.; Xitco, Mark] US Navy Marine Mammal Program, San Diego, CA 92106 USA.
RP Venn-Watson, SK (reprint author), Natl Marine Mammal Fdn, 2240 Shelter Isl Dr, San Diego, CA 92106 USA.
EM stephanie.venn-watston@nmmf.org
NR 45
TC 1
Z9 1
U1 5
U2 16
PU AMER VETERINARY MEDICAL ASSOC
PI SCHAUMBURG
PA 1931 N MEACHAM RD SUITE 100, SCHAUMBURG, IL 60173-4360 USA
SN 0003-1488
EI 1943-569X
J9 JAVMA-J AM VET MED A
JI JAVMA-J. Am. Vet. Med. Assoc.
PD APR 15
PY 2015
VL 246
IS 8
BP 893
EP 898
PG 6
WC Veterinary Sciences
SC Veterinary Sciences
GA CK0XW
UT WOS:000355930000030
PM 25835174
ER
PT J
AU Medley, A
Bachanas, P
Grillo, M
Hasen, N
Amanyeiwe, U
AF Medley, Amy
Bachanas, Pamela
Grillo, Michael
Hasen, Nina
Amanyeiwe, Ugochukwu
TI Integrating Prevention Interventions for People Living With HIV Into
Care and Treatment Programs: A Systematic Review of the Evidence
SO JAIDS-JOURNAL OF ACQUIRED IMMUNE DEFICIENCY SYNDROMES
LA English
DT Review
DE HIV; AIDS; resource-limited settings; HIV prevention; people living with
HIV; positive health; dignity; and prevention
ID RANDOMIZED CONTROLLED-TRIAL; HERPES-SIMPLEX-VIRUS;
FAMILY-PLANNING-SERVICES; PLACEBO-CONTROLLED TRIAL; ANTIRETROVIRAL
THERAPY ADHERENCE; HORMONAL CONTRACEPTIVE METHODS; SOUTH-AFRICA;
DISCORDANT COUPLES; COST-EFFECTIVENESS; EPIDEMIOLOGIC EVIDENCE
AB Introduction:This review assesses the impact of prevention interventions for people living with HIV on HIV-related mortality, morbidity, retention in care, quality of life, and prevention of ongoing HIV transmission in resource-limited settings (RLSs).Methods:We conducted a systematic review of studies reporting the results of prevention interventions for people living with HIV in RLS published between January 2000 and August 2014. Standardized methods of searching and data abstraction were used.Results:Ninety-two studies met the eligibility criteria: 24 articles related to adherence counseling and support, 13 on risk reduction education and condom provision, 19 on partner HIV testing and counseling, 14 on provision of family planning services, and 22 on assessment and treatment of other sexually transmitted infections. Findings indicate good evidence that adherence counseling and sexually transmitted infection treatment can have a high impact on morbidity, whereas risk reduction education, partner HIV testing and counseling, and family planning counseling can prevent transmission of HIV. More limited evidence was found to support the impact of these interventions on retention in care and quality of life. Most studies did not report cost information, making it difficult to draw conclusions about the cost-effectiveness of these interventions.Conclusions:This evidence suggests that these prevention interventions, if brought to sufficient scale and coverage, can help support and optimize the impact of core treatment and prevention interventions in RLS. Further operational research with more rigorous study designs, and ideally with biomarkers and costing information, is needed to determine the best model for providing these interventions in RLS.
C1 [Medley, Amy; Bachanas, Pamela] US Ctr Dis Control & Prevent, Div Global HIV AIDS, Atlanta, GA USA.
[Grillo, Michael] US Dept Def, Naval Hlth Res Ctr, HIV AIDS Prevent Program, San Diego, CA USA.
[Hasen, Nina] US Dept State, Off US Global AIDS Coordinator & Hlth Diplomacy, Washington, DC 20520 USA.
[Amanyeiwe, Ugochukwu] US Agcy Int Dev, Off HIV AIDS, Washington, DC 20523 USA.
RP Medley, A (reprint author), 1600 Clifton Rd,MS E04, Atlanta, GA 30333 USA.
EM amedley@cdc.gov
FU US President's Emergency Plan for AIDS Relief (PEPFAR) through the US
Department of State Office of the US Global AIDS Coordinator and Health
Diplomacy; US Centers for Disease Control and Prevention; US Department
of Defense; US Agency for International Development
FX Supported by the US President's Emergency Plan for AIDS Relief (PEPFAR)
through the US Department of State Office of the US Global AIDS
Coordinator and Health Diplomacy, the US Centers for Disease Control and
Prevention, the US Department of Defense, and the US Agency for
International Development.
NR 109
TC 4
Z9 4
U1 0
U2 3
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA TWO COMMERCE SQ, 2001 MARKET ST, PHILADELPHIA, PA 19103 USA
SN 1525-4135
EI 1077-9450
J9 JAIDS-J ACQ IMM DEF
JI JAIDS
PD APR 15
PY 2015
VL 68
SU 3
BP S286
EP S296
DI 10.1097/QAI.0000000000000520
PG 11
WC Immunology; Infectious Diseases
SC Immunology; Infectious Diseases
GA CH6CN
UT WOS:000354123500005
PM 25768868
ER
PT J
AU Yin, P
Parrish, DA
Shreeve, JM
AF Yin, Ping
Parrish, Damon A.
Shreeve, Jean'ne M.
TI Energetic Multifunctionalized Nitraminopyrazoles and Their Ionic
Derivatives: Ternary Hydrogen-Bond Induced High Energy Density Materials
SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Article
ID SALTS; 4-CHLORO-3,5-DINITROPYRAZOLE; MONO
AB Diverse functionalization was introduced into the pyrazole framework giving rise to a new family of ternary hydrogen-bond induced high energy density materials. By incorporating extended cationic interactions, nitramine-based ionic derivatives exhibit good energetic performance and enhanced molecular stability. Performance parameters including heats of formation and detonation properties were calculated by using Gaussian 03 and EXPLO5 v6.01 programs, respectively. It is noteworthy to find that 5-nitramino-3,4-dinitropyrazole, 4, has a remarkable measured density of 1.97 g cm(-3) at 298 K, which is consistent with its crystal density (2.032 g cm(-3), 150 K), and ranks highest among azole-based CHNO compounds. Energetic evaluation indicates that, in addition to the molecular compound 4, some ionic derivatives, 9, 11, 12, 17, 19, and 22, also have high densities (1.83-1.97 g cm(-3)), excellent detonation pressures and velocities (P, 35.6-41.6 GPa; vD, 8880-9430 m s(-1)), as well as acceptable impact and friction sensitivities (IS, 4-30 J; FS, 40-240 N). These attractive features highlight the application potential of nitramino hydrogen-bonded interactions in the design of advanced energetic materials.
C1 [Yin, Ping; 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@uidaho.edu
RI Yin, Ping/A-3699-2014
OI Yin, Ping/0000-0002-2870-8225
FU ONR [N00014-12-1-0536]; Defense Threat Reduction Agency [HDTRA
1-11-1-0034]
FX The authors are grateful for the support of ONR (N00014-12-1-0536) and
the Defense Threat Reduction Agency (HDTRA 1-11-1-0034). The authors
acknowledge Dr. Orion Berryman (NSF CHE-1337908) for considerable
assistance with crystal structures.
NR 36
TC 38
Z9 40
U1 7
U2 34
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 APR 15
PY 2015
VL 137
IS 14
BP 4778
EP 4786
DI 10.1021/jacs.5b00714
PG 9
WC Chemistry, Multidisciplinary
SC Chemistry
GA CG3JS
UT WOS:000353177100034
PM 25807076
ER
PT J
AU Cothran, CD
Boris, DR
Compton, CS
Tejero, EM
Fernsler, RF
Amatucci, WE
Walton, SG
AF Cothran, C. D.
Boris, D. R.
Compton, C. S.
Tejero, E. M.
Fernsler, R. F.
Amatucci, W. E.
Walton, S. G.
TI Continuous and pulsed electron beam production from an uninterrupted
plasma cathode
SO SURFACE & COATINGS TECHNOLOGY
LA English
DT Article
DE Electron beam; Plasma processing; Hollow cathode; Plasma
ID GENERATED PLASMAS; EXCITATION; DISCHARGE; GUN
AB Electron extraction from a hollow cathode plasma discharge through a primary anode, biased with a DC accelerating potential, is controlled to produce either a pulsed or a continuous electron beam without interruption of the discharge. The beam is on while a secondary anode, interior to the hollow cathode, is electrically isolated. While the primary and secondary anodes are electrically connected, the beam is off. Pulses as short as 10 mu s have been produced, rise times are <1 mu s, the maximum beam-on duration is unlimited, and almost any duty cycle is possible. This source has been operated up to 3 kV and has produced beams of up to 80 mA. (C) 2014 Elsevier B.V. All rights reserved.
C1 [Boris, D. R.; Tejero, E. M.; Fernsler, R. F.; Amatucci, W. E.; Walton, S. G.] Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
[Cothran, C. D.; Compton, C. S.] Sotera Def Solut Inc, Annapolis Jct, MD 20701 USA.
RP Walton, SG (reprint author), Naval Res Lab, Div Plasma Phys, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM scott.walton@nrl.navy.mil
FU Naval Research Laboratory Base Program; Defense Threat Reduction Agency
FX This work was supported by the Naval Research Laboratory Base Program
and the Defense Threat Reduction Agency.
NR 22
TC 3
Z9 3
U1 3
U2 6
PU ELSEVIER SCIENCE SA
PI LAUSANNE
PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND
SN 0257-8972
J9 SURF COAT TECH
JI Surf. Coat. Technol.
PD APR 15
PY 2015
VL 267
BP 111
EP 116
DI 10.1016/j.surfcoat.2014.08.006
PG 6
WC Materials Science, Coatings & Films; Physics, Applied
SC Materials Science; Physics
GA CH2HG
UT WOS:000353845700018
ER
PT J
AU Wong, D
Shrestha, B
Wetz, DA
Heinzel, JM
AF Wong, Derek
Shrestha, Biju
Wetz, David A.
Heinzel, John M.
TI Impact of high rate discharge on the aging of lithium nickel cobalt
aluminum oxide batteries
SO JOURNAL OF POWER SOURCES
LA English
DT Article
DE Lithium-ion batteries; Capacity fade; Impedance spectrum; Pulsed
discharge; High C rate; Aging
ID ENERGY-STORAGE DEVICES; ION BATTERIES; CYCLE-LIFE; MECHANISMS
AB In this study, three identical LiNixCoyAl1-x-yO2, (NCA) batteries are evaluated to understand the impact of high rate discharge on the rate of capacity fade. The first of the three cells is repeatedly discharged in a pulse width modulated (PWM) manner at a frequency of 10 kHz, duty cycle of 50%, and peak rate of 83C (250 A). The second cell is repeatedly discharged at a constant current (CC) rate of 25C (75 A) while the third cell, which serves as the control cell, is discharged at its nominal CC rate of 1C (3 A). All three cells are recharged using a 1C CC recharge procedure to minimize the impact of recharge on cell aging. Novel and commercially procured battery cyclers are used to experimentally discharge and recharge the cells. Periodic baseline measurements, in which both capacity and electrochemical impedance spectroscopy (EIS) measurements show that the degradation mechanisms are enhanced under high rate pulse discharge cycling conditions. EIS modeling points to breakdown in the integrity of the anodic side double layer and increased charge transfer resistance as the largest contributors to impedance evolution in the cell. (C) 2015 Elsevier B.V. All rights reserved.
C1 [Wong, Derek] Univ Texas Arlington, Dept Mat Sci & Engn, Arlington, TX 76019 USA.
[Shrestha, Biju; Wetz, David A.] Univ Texas Arlington, Dept Elect Engn, Arlington, TX 76019 USA.
[Heinzel, John M.] Carderock Div, Naval Surface Warfare Ctr, Philadelphia, PA 19112 USA.
RP Wetz, DA (reprint author), Univ Texas Arlington, Dept Elect Engn, 416 Yates St, Arlington, TX 76019 USA.
EM derek.wong@mavs.uta.edu; biju.shrestha@mavs.uta.edu; wetz@uta.edu;
john.heinzel@navy.mil
FU US Office of Naval Research (ONR) [N00014-11-1-0659]
FX This material is based upon work supported by US Office of Naval
Research (ONR) under contract number N00014-11-1-0659. The authors would
like to express thanks to ONR for their continued support. Any opinions,
findings, and conclusions or recommendations expressed in this
publication are those of the authors and do not necessarily reflect the
views of the US Office of Naval Research.
NR 17
TC 10
Z9 10
U1 17
U2 121
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0378-7753
EI 1873-2755
J9 J POWER SOURCES
JI J. Power Sources
PD APR 15
PY 2015
VL 280
BP 363
EP 372
DI 10.1016/j.jpowsour.2015.01.110
PG 10
WC Chemistry, Physical; Electrochemistry; Energy & Fuels; Materials
Science, Multidisciplinary
SC Chemistry; Electrochemistry; Energy & Fuels; Materials Science
GA CD2XD
UT WOS:000350941400045
ER
PT J
AU Davis, J
Petrov, GM
Petrova, TB
AF Davis, J.
Petrov, G. M.
Petrova, Tz B.
TI Line emission radiation during early-time interaction of an intense
short laser pulse with an ultrathin planar aluminum target
SO JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
LA English
DT Article
DE laser-plasma interaction; particle-in-cell; atomic physics model; x-ray
radiation; Bremsstrahlung radiation
ID IN-CELL SIMULATIONS; PHOTON-ESCAPE PROBABILITIES; PLASMA; ALGORITHM;
EQUATION
AB The interaction of an intense short laser pulse with an ultrathin planar aluminum foil is investigated with a fully relativistic particle-in-cell model self-consistently coupled to an atomic dynamics model describing the non-local thermodynamic equilibrium level population dynamics and radiative behavior of a plasma evolving on a picosecond timescale. For typical experimental conditions, laser pulses with energy 1 J, intensity 10(20)Wcm(-2), and duration 40 fs, a synthetic spectrum for the emission lines is generated as a function of time for lines emanating in the hydrogen-and helium-like ionization stages. It is found that He-alpha, He-beta, Ly(alpha), and Ly(beta) lines have intensities above the Bremsstrahlung continuum and could serve as diagnostics for the evolving plasma condition.
C1 [Davis, J.; Petrov, G. M.; Petrova, Tz B.] Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
RP Davis, J (reprint author), Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
EM jack.davis@nrl.navy.mil
FU NRL
FX This work was supported by NRL as part of their 6.1 Base Program. We
also thank Dr John Giuliani for his insight and comments during the
course of this investigation.
NR 20
TC 0
Z9 0
U1 0
U2 4
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0953-4075
EI 1361-6455
J9 J PHYS B-AT MOL OPT
JI J. Phys. B-At. Mol. Opt. Phys.
PD APR 14
PY 2015
VL 48
IS 7
AR 075601
DI 10.1088/0953-4075/48/7/075601
PG 7
WC Optics; Physics, Atomic, Molecular & Chemical
SC Optics; Physics
GA CE3WX
UT WOS:000351761900012
ER
PT J
AU Davenport, JRA
Ruan, JJ
Becker, AC
Macleod, CL
Cutri, RM
AF Davenport, James R. A.
Ruan, John J.
Becker, Andrew C.
Macleod, Chelsea L.
Cutri, Roc M.
TI SDSS J14584479+3720215: A BENCHMARK JHK(S) BLAZAR LIGHT CURVE FROM THE
2MASS CALIBRATION SCANS
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE quasars: general; surveys
ID ACTIVE GALACTIC NUCLEI; LARGE-AREA TELESCOPE; DIGITAL SKY SURVEY;
GAMMA-RAY EMISSION; DAMPED RANDOM-WALK; INFRARED VARIABILITY;
RHO-OPHIUCHUS; OPTICAL VARIABILITY; ACCRETION DISKS; BRIGHT BLAZARS
AB Active galactic nuclei (AGNs) are well-known to exhibit flux variability across a wide range of wavelength regimes, but the precise origin of the variability at different wavelengths remains unclear. To investigate the relatively unexplored near-IR (NIR) variability of the most luminous AGNs, we conduct a search for variability using well sampled JHK(s)-band light curves from the Two Micron All Sky Survey (2MASS) calibration fields. Our sample includes 27 known quasars with an average of 924 epochs of observation over three years, as well as one spectroscopically confirmed blazar (SDSS J14584479+3720215) with 1972 epochs of data. This is the best-sampled NIR photometric blazar light curve to date, and it exhibits correlated, stochastic variability that we characterize with continuous auto-regressive moving average (CARMA) models. None of the other 26 known quasars had detectable variability in the 2MASS bands above the photometric uncertainty. A blind search of the 2MASS calibration field light curves for active galactic nucleus (AGN) candidates based on fitting CARMA(1,0) models (damped-random walk) uncovered only seven candidates. All seven were young stellar objects within the rho Ophiuchus star forming region, five with previous X-ray detections. A significant gamma-ray detection (5 sigma) for the known blazar using 4.5 yr of Fermi photon data is also found. We suggest that strong NIR variability of blazars, such as seen for SDSS J14584479+3720215, can be used as an efficient method of identifying previously unidentified gamma-ray blazars, with low contamination from other AGNs.
C1 [Davenport, James R. A.; Ruan, John J.; Becker, Andrew C.] Univ Washington, Dept Astron, Seattle, WA 98195 USA.
[Macleod, Chelsea L.] US Naval Acad, Dept Phys, Annapolis, MD 21402 USA.
[Cutri, Roc M.] CALTECH, Infrared Proc & Anal Ctr, Pasadena, CA 91125 USA.
RP Davenport, JRA (reprint author), Univ Washington, Dept Astron, Box 351580, Seattle, WA 98195 USA.
EM jrad@astro.washington.edu
FU NASA ADP grant [NNX09AC77G, NNX14AK26G]; National Aeronautics and Space
Administration; National Science Foundation
FX We thank P. Plavchan and J. Parks for helpful discussions of YSO
variability and for sharing an early version of their manuscript. The
authors acknowledge support from NASA ADP grant NNX09AC77G and
NNX14AK26G. 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. This research has
made use of the NASA/IPAC Extragalactic Database (NED) which is operated
by the Jet Propulsion Laboratory, California Institute of Technology,
under contract with the National Aeronautics and Space Administration.
This research has made use of data obtained from the Chandra Source
Catalog, provided by the Chandra X-ray Center (CXC) as part of the
Chandra Data Archive. This publication makes use of data products from
the Wide-field Infrared Survey Explorer, which is a joint project of the
University of California, Los Angeles, and the Jet Propulsion
Laboratory/California Institute of Technology, funded by the National
Aeronautics and Space Administration.
NR 52
TC 0
Z9 0
U1 0
U2 0
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 APR 10
PY 2015
VL 803
IS 1
AR 2
DI 10.1088/0004-637X/803/1/2
PG 5
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA CG1EI
UT WOS:000353015400002
ER
PT J
AU Michael, AT
Opher, M
Provornikova, E
Richardson, JD
Toth, G
AF Michael, A. T.
Opher, M.
Provornikova, E.
Richardson, J. D.
Toth, G.
TI MAGNETIC FLUX CONSERVATION IN THE HELIOSHEATH INCLUDING SOLAR CYCLE
VARIATIONS OF MAGNETIC FIELD INTENSITY
SO ASTROPHYSICAL JOURNAL LETTERS
LA English
DT Article
DE magnetohydrodynamics (MHD); solar wind; Sun: activity; Sun: heliosphere;
Sun: magnetic fields
ID 3-DIMENSIONAL FEATURES; OUTER HELIOSPHERE; COSMIC-RAYS; INTERSTELLAR;
SYSTEM
AB In the heliosheath (HS), Voyager 2 has observed a flow with constant radial velocity and magnetic flux conservation. Voyager 1, however, has observed a decrease in the flow's radial velocity and an order of magnitude decrease in magnetic flux. We investigate the role of the 11 yr solar cycle variation of the magnetic field strength on the magnetic flux within the HS using a global 3D magnetohydrodynamic model of the heliosphere. We use time and latitude-dependent solar wind velocity and density inferred from Solar and Heliospheric Observatory/SWAN and interplanetary scintillations data and implemented solar cycle variations of the magnetic field derived from 27 day averages of the field magnitude average of the magnetic field at 1 AU from the OMNI database. With the inclusion of the solar cycle time-dependent magnetic field intensity, the model matches the observed intensity of the magnetic field in the HS along both Voyager 1 and 2. This is a significant improvement from the same model without magnetic field solar cycle variations, which was over a factor of two larger. The model accurately predicts the radial velocity observed by Voyager 2; however, the model predicts a flow speed similar to 100 km s(-1) larger than that derived from LECP measurements at Voyager 1. In the model, magnetic flux is conserved along both Voyager trajectories, contrary to observations. This implies that the solar cycle variations in solar wind magnetic field observed at 1 AU does not cause the order of magnitude decrease in magnetic flux observed in the Voyager 1 data.
C1 [Michael, A. T.; Opher, M.] Boston Univ, Dept Astron, Boston, MA 02115 USA.
[Provornikova, E.] Naval Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Richardson, J. D.] MIT, Kavli Ctr Astrophys & Space Res, Cambridge, MA 02139 USA.
[Toth, G.] Univ Michigan, Ann Arbor, MI 48109 USA.
RP Michael, AT (reprint author), Boston Univ, Dept Astron, Boston, MA 02115 USA.
EM atmich@bu.edu; mopher@bu.edu; elena.a.provornikova@nasa.gov;
jdr@space.mit.edu; gtoth@umich.edu
RI Toth, Gabor/B-7977-2013
OI Toth, Gabor/0000-0002-5654-9823
FU NASA Headquarters under the NASA Earth and Space Science [NNX14AO14H];
NASA [NNX14AIB0G, NNX13AE04G, 959203]
FX This work was supported by NASA Headquarters under the NASA Earth and
Space Science Fellowship Program-grant NNX14AO14H. M.O. and A.M.
acknowledge the support of NASA Grand Challenge NNX14AIB0G and NASA
award NNX13AE04G. The calculations were performed at NASA AMES Pleiades
Supercomputer. J.D.R. was supported under NASA contract 959203 from the
Jet Propulsion Laboratory to the Massachusetts Institute of Technology.
NR 21
TC 2
Z9 2
U1 0
U2 6
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 APR 10
PY 2015
VL 803
IS 1
AR L6
DI 10.1088/2041-8205/803/1/L6
PG 5
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA CF8NC
UT WOS:000352817200006
ER
PT J
AU Wang, YM
AF Wang, Y. -M.
TI PSEUDOSTREAMERS AS THE SOURCE OF A SEPARATE CLASS OF SOLAR CORONAL MASS
EJECTIONS
SO ASTROPHYSICAL JOURNAL LETTERS
LA English
DT Article
DE Sun: activity; Sun: corona; Sun: coronal mass ejections (CMEs); Sun:
filaments, prominences; Sun: heliosphere; Sun: magnetic fields
ID STREAMERS; BELTS; WIND
AB Using white-light and extreme-ultraviolet imaging observations, we confirm that pseudostreamers (streamers that separate coronal holes of the same polarity) give rise to a different type of coronal mass ejection (CME) from that associated with helmet streamers (defined as separating coronal holes of opposite polarity). Whereas helmet streamers are the source of the familiar bubble-shaped CMEs characterized by gradual acceleration and a three-part structure, pseudostreamers produce narrower, fanlike ejections with roughly constant speeds. These ejections, which are typically triggered by underlying filament eruptions or small, flaring active regions, are confined laterally and channeled outward by the like-polarity open flux that converges onto the pseudostreamer plasma sheet from both sides. In contrast, helmet streamer CMEs are centered on the relatively weak field around the heliospheric current sheet and thus undergo greater lateral expansion. Pseudostreamer ejections have a morphological resemblance to white-light jets from coronal holes; however, unlike the latter, they are not primarily driven by interchange reconnection, and tend to have larger widths (similar to 20 degrees-30 degrees), lower speeds (similar to 250-700 km s(-1)), and more complex internal structure.
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 CNR
FX This CNR-supported work benefited from discussions with R. C. Colaninno,
N. R. Sheeley, Jr., D. G. Socker, and G. Stenborg.
NR 15
TC 4
Z9 4
U1 0
U2 2
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 2041-8205
EI 2041-8213
J9 ASTROPHYS J LETT
JI Astrophys. J. Lett.
PD APR 10
PY 2015
VL 803
IS 1
AR L12
DI 10.1088/2041-8205/803/1/L12
PG 9
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA CF8NC
UT WOS:000352817200012
ER
PT J
AU Adamczyk, L
Adkins, JK
Agakishiev, G
Aggarwal, MM
Ahammed, Z
Alekseev, I
Alford, J
Aparin, A
Arkhipkin, D
Aschenauer, EC
Averichev, GS
Banerjee, A
Bellwied, R
Bhasin, A
Bhati, AK
Bhattarai, P
Bielcik, J
Bielcikova, J
Bland, LC
Bordyuzhin, IG
Bouchet, J
Brandin, AV
Bunzarov, I
Burton, TP
Butterworth, J
Caines, H
S'anchez, MCD
Campbell, JM
Cebra, D
Cervantes, MC
Chakaberia, I
Chaloupka, P
Chang, Z
Chattopadhyay, S
Chen, JH
Cheng, J
Cherney, M
Christie, W
Codrington, MJM
Contin, G
Crawford, HJ
Das, S
De Silva, LC
Debbe, RR
Dedovich, TG
Deng, J
Derevschikov, AA
de Souza, RD
di Ruzza, B
Didenko, L
Dilks, C
Dong, X
Drachenberg, JL
Draper, JE
Du, CM
Dunkelberger, LE
Dunlop, JC
Efimov, LG
Engelage, J
Eppley, G
Esha, R
Evdokimov, O
Eyser, O
Fatemi, R
Fazio, S
Federic, P
Fedorisin, J
Feng
Filip, P
Fisyak, Y
Flores, CE
Gagliardi, CA
Garand, D
Geurts, F
Gibson, A
Girard, M
Greiner, L
Grosnick, D
Gunarathne, DS
Guo, Y
Gupta, S
Gupta, A
Guryn, W
Hamad, A
Hamed, A
Haque, R
Harris, JW
He, L
Heppelmann, S
Hirsch, A
Hoffmann, GW
Hofman, DJ
Horvat, S
Huang, HZ
Huang, X
Huang, B
Huck, P
Humanic, TJ
Igo, G
Jacobs, WW
Jang, H
Judd, EG
Kabana, S
Kalinkin, D
Kang, K
Kauder, K
Ke, HW
Keane, D
Kechechyan, A
Khan, ZH
Kikola, DP
Kisel, I
Kisiel, A
Klein, R
Koetke, DD
Kollegger, T
Kosarzewski, LK
Kotchenda, L
Kraishan, AF
Kravtsov, P
Krueger, K
Kulakov, I
Kumar, L
Kycia, RA
Lamont, MAC
Landgraf, JM
Landry, KD
Lauret, J
Lebedev, A
Lednicky, R
Lee, JH
Li, X
Li, C
Li, X
Li, W
Li, ZM
Li, Y
Lisa, MA
Liu, F
Ljubicic, T
Llope, WJ
Lomnitz, M
Longacre, RS
Luo, X
Ma, L
Ma, GL
Ma, YG
Ma, R
Magdy, N
Majka, R
Manion, A
Margetis, S
Markert, C
Masui, H
Matis, HS
McDonald, D
Minaev, NG
Mioduszewski, S
Mohanty, B
Mondal, MM
Morozov, DA
Mustafa, MK
Nandi, BK
Nasim, M
Nayak, TK
Nigmatkulov, G
Nogach, LV
Noh, SY
Novak, J
Nurushev, SB
Odyniec, G
Ogawa, A
Oh, K
Okorokov, V
Olvitt, DL
Page, BS
Pan, YX
Pandit, Y
Panebratsev, Y
Pawlak, T
Pawlik, B
Pei, H
Perkins, C
Pile, P
Planinic, M
Pluta, J
Poljak, N
Poniatowska, K
Porter, J
Poskanzer, AM
Pruthi, NK
Przybycien, M
Putschke, J
Qiu, H
Quintero, A
Ramachandran, S
Raniwala, R
Raniwala, S
Ray, RL
Ritter, HG
Roberts, JB
Rogachevskiy, OV
Romero, JL
Roy, A
Ruan, L
Rusnak, J
Rusnakova, O
Sahoo, NR
Sahu, PK
Sakrejda, I
Salur, S
Sandacz, A
Sandweiss, J
Sarkar, A
Schambach, J
Scharenberg, RP
Schmah, AM
Schmidke, WB
Schmitz, N
Seger, J
Seyboth, P
Shah, N
Shahaliev, E
Shanmuganathan, PV
Shao, M
Sharma, B
Sharma, MK
Shen, WQ
Shi, SS
Shou, QY
Sichtermann, EP
Simko, M
Skoby, MJ
Smirnov, D
Smirnov, N
Solanki, D
Song, L
Sorensen, P
Spinka, HM
Srivastava, B
Stanislaus, TDS
Stock, R
Strikhanov, M
Stringfellow, B
Sumbera, M
Summa, BJ
Sun, Z
Sun, Y
Sun, X
Sun, XM
Surrow, B
Svirida, DN
Szelezniak, MA
Takahashi, J
Tang, Z
Tang, AH
Tarnowsky, T
Tawfik, AN
Thomas, JH
Timmins, AR
Tlusty, D
Tokarev, M
Trentalange, S
Tribble, RE
Tribedy, P
Tripathy, SK
Trzeciak, BA
Tsai, OD
Turnau, J
Ullrich, T
Underwood, DG
Upsal, I
Van Buren, G
van Nieuwenhuizen, G
Vandenbroucke, M
Varma, R
Vasconcelos, GMS
Vasiliev, AN
Vertesi, R
Videbaek, F
Viyogi, YP
Vokal, S
Voloshin, SA
Vossen, A
Wang, JS
Wang, Y
Wang, F
Wang, Y
Wang, G
Wang, H
Webb, JC
Webb, G
Wen, L
Westfall, GD
Wieman, H
Wissink, SW
Witt, R
Wu, YF
Xiao, Z
Xie, W
Xin, K
Xu, QH
Xu, H
Xu, N
Xu, YF
Xu, Z
Yan, W
Yang, Y
Yang, Q
Yang, Y
Yang, C
Yang, S
Ye, Z
Yepes, P
Yi, L
Yip, K
Yoo, IK
Yu, N
Zbroszczyk, H
Zha, W
Zhang, JB
Zhang, XP
Zhang, S
Zhang, Z
Zhang, Y
Zhang, JL
Zhao, F
Zhao, J
Zhong, C
Zhu, X
Zoulkarneeva, Y
Zyzak, M
AF Adamczyk, L.
Adkins, J. K.
Agakishiev, G.
Aggarwal, M. M.
Ahammed, Z.
Alekseev, I.
Alford, J.
Aparin, A.
Arkhipkin, D.
Aschenauer, E. C.
Averichev, G. S.
Banerjee, A.
Bellwied, R.
Bhasin, A.
Bhati, A. K.
Bhattarai, P.
Bielcik, J.
Bielcikova, J.
Bland, L. C.
Bordyuzhin, I. G.
Bouchet, J.
Brandin, A. V.
Bunzarov, I.
Burton, T. P.
Butterworth, J.
Caines, H.
S'anchez, M. Calder'on de la Barca
Campbell, J. M.
Cebra, D.
Cervantes, M. C.
Chakaberia, I.
Chaloupka, P.
Chang, Z.
Chattopadhyay, S.
Chen, J. H.
Cheng, J.
Cherney, M.
Christie, W.
Codrington, M. J. M.
Contin, G.
Crawford, H. J.
Das, S.
De Silva, L. C.
Debbe, R. R.
Dedovich, T. G.
Deng, J.
Derevschikov, A. A.
de Souza, R. Derradi
di Ruzza, B.
Didenko, L.
Dilks, C.
Dong, X.
Drachenberg, J. L.
Draper, J. E.
Du, C. M.
Dunkelberger, L. E.
Dunlop, J. C.
Efimov, L. G.
Engelage, J.
Eppley, G.
Esha, R.
Evdokimov, O.
Eyser, O.
Fatemi, R.
Fazio, S.
Federic, P.
Fedorisin, J.
Feng
Filip, P.
Fisyak, Y.
Flores, C. E.
Gagliardi, C. A.
Garand, D.
Geurts, F.
Gibson, A.
Girard, M.
Greiner, L.
Grosnick, D.
Gunarathne, D. S.
Guo, Y.
Gupta, S.
Gupta, A.
Guryn, W.
Hamad, A.
Hamed, A.
Haque, R.
Harris, J. W.
He, L.
Heppelmann, S.
Hirsch, A.
Hoffmann, G. W.
Hofman, D. J.
Horvat, S.
Huang, H. Z.
Huang, X.
Huang, B.
Huck, P.
Humanic, T. J.
Igo, G.
Jacobs, W. W.
Jang, H.
Judd, E. G.
Kabana, S.
Kalinkin, D.
Kang, K.
Kauder, K.
Ke, H. W.
Keane, D.
Kechechyan, A.
Khan, Z. H.
Kikola, D. P.
Kisel, I.
Kisiel, A.
Klein, R.
Koetke, D. D.
Kollegger, T.
Kosarzewski, L. K.
Kotchenda, L.
Kraishan, A. F.
Kravtsov, P.
Krueger, K.
Kulakov, I.
Kumar, L.
Kycia, R. A.
Lamont, M. A. C.
Landgraf, J. M.
Landry, K. D.
Lauret, J.
Lebedev, A.
Lednicky, R.
Lee, J. H.
Li, X.
Li, C.
Li, X.
Li, W.
Li, Z. M.
Li, Y.
Lisa, M. A.
Liu, F.
Ljubicic, T.
Llope, W. J.
Lomnitz, M.
Longacre, R. S.
Luo, X.
Ma, L.
Ma, G. L.
Ma, Y. G.
Ma, R.
Magdy, N.
Majka, R.
Manion, A.
Margetis, S.
Markert, C.
Masui, H.
Matis, H. S.
McDonald, D.
Minaev, N. G.
Mioduszewski, S.
Mohanty, B.
Mondal, M. M.
Morozov, D. A.
Mustafa, M. K.
Nandi, B. K.
Nasim, Md.
Nayak, T. K.
Nigmatkulov, G.
Nogach, L. V.
Noh, S. Y.
Novak, J.
Nurushev, S. B.
Odyniec, G.
Ogawa, A.
Oh, K.
Okorokov, V.
Olvitt, D. L., Jr.
Page, B. S.
Pan, Y. X.
Pandit, Y.
Panebratsev, Y.
Pawlak, T.
Pawlik, B.
Pei, H.
Perkins, C.
Pile, P.
Planinic, M.
Pluta, J.
Poljak, N.
Poniatowska, K.
Porter, J.
Poskanzer, A. M.
Pruthi, N. K.
Przybycien, M.
Putschke, J.
Qiu, H.
Quintero, A.
Ramachandran, S.
Raniwala, R.
Raniwala, S.
Ray, R. L.
Ritter, H. G.
Roberts, J. B.
Rogachevskiy, O. V.
Romero, J. L.
Roy, A.
Ruan, L.
Rusnak, J.
Rusnakova, O.
Sahoo, N. R.
Sahu, P. K.
Sakrejda, I.
Salur, S.
Sandacz, A.
Sandweiss, J.
Sarkar, A.
Schambach, J.
Scharenberg, R. P.
Schmah, A. M.
Schmidke, W. B.
Schmitz, N.
Seger, J.
Seyboth, P.
Shah, N.
Shahaliev, E.
Shanmuganathan, P. V.
Shao, M.
Sharma, B.
Sharma, M. K.
Shen, W. Q.
Shi, S. S.
Shou, Q. Y.
Sichtermann, E. P.
Simko, M.
Skoby, M. J.
Smirnov, D.
Smirnov, N.
Solanki, D.
Song, L.
Sorensen, P.
Spinka, H. M.
Srivastava, B.
Stanislaus, T. D. S.
Stock, R.
Strikhanov, M.
Stringfellow, B.
Sumbera, M.
Summa, B. J.
Sun, Z.
Sun, Y.
Sun, X.
Sun, X. M.
Surrow, B.
Svirida, D. N.
Szelezniak, M. A.
Takahashi, J.
Tang, Z.
Tang, A. H.
Tarnowsky, T.
Tawfik, A. N.
Thomas, J. H.
Timmins, A. R.
Tlusty, D.
Tokarev, M.
Trentalange, S.
Tribble, R. E.
Tribedy, P.
Tripathy, S. K.
Trzeciak, B. A.
Tsai, O. D.
Turnau, J.
Ullrich, T.
Underwood, D. G.
Upsal, I.
Van Buren, G.
van Nieuwenhuizen, G.
Vandenbroucke, M.
Varma, R.
Vasconcelos, G. M. S.
Vasiliev, A. N.
Vertesi, R.
Videbaek, F.
Viyogi, Y. P.
Vokal, S.
Voloshin, S. A.
Vossen, A.
Wang, J. S.
Wang, Y.
Wang, F.
Wang, Y.
Wang, G.
Wang, H.
Webb, J. C.
Webb, G.
Wen, L.
Westfall, G. D.
Wieman, H.
Wissink, S. W.
Witt, R.
Wu, Y. F.
Xiao, Z.
Xie, W.
Xin, K.
Xu, Q. H.
Xu, H.
Xu, N.
Xu, Y. F.
Xu, Z.
Yan, W.
Yang, Y.
Yang, Q.
Yang, Y.
Yang, C.
Yang, S.
Ye, Z.
Yepes, P.
Yi, L.
Yip, K.
Yoo, I. -K.
Yu, N.
Zbroszczyk, H.
Zha, W.
Zhang, J. B.
Zhang, X. P.
Zhang, S.
Zhang, Z.
Zhang, Y.
Zhang, J. L.
Zhao, F.
Zhao, J.
Zhong, C.
Zhu, X.
Zoulkarneeva, Y.
Zyzak, M.
TI Effect of event selection on jetlike correlation measurement in d plus
Au collisions at root s(NN)=200 GeV
SO PHYSICS LETTERS B
LA English
DT Article
ID TIME PROJECTION CHAMBER; QUARK-GLUON PLASMA; ANGULAR-CORRELATIONS; PPB
COLLISIONS; LONG-RANGE; STAR; COLLABORATION; PERSPECTIVE; SIDE
AB Dihadron correlations are analyzed in root s(NN) = 200 GeV d + Au collisions classified by forward charged particle multiplicity and zero-degree neutral energy in the Au-beam direction. It is found that the jetlike correlated yield increases with the event multiplicity. After taking into account this dependence, the non-jet contribution on the away side is minimal, leaving little room for a back-to-back ridge in these collisions. (C) 2015 The Authors. Published by Elsevier B.V.
C1 [Adamczyk, L.; Przybycien, M.] AGH Univ Sci & Technol, PL-30059 Krakow, Poland.
[Krueger, K.; Spinka, H. M.; Underwood, D. G.] Argonne Natl Lab, Argonne, IL 60439 USA.
[Arkhipkin, D.; Aschenauer, E. C.; Bland, L. C.; Burton, T. P.; Chakaberia, I.; Christie, W.; Debbe, R. R.; di Ruzza, B.; Didenko, L.; Dunlop, J. C.; Eyser, O.; Fazio, S.; Fisyak, Y.; Guryn, W.; Ke, H. W.; Lamont, M. A. C.; Landgraf, J. M.; Lauret, J.; Lebedev, A.; Lee, J. H.; Li, X.; Ljubicic, T.; Longacre, R. S.; Ma, R.; Ogawa, A.; Pile, P.; Ruan, L.; Schmidke, W. B.; Smirnov, D.; Sorensen, P.; Tang, A. H.; Ullrich, T.; Van Buren, G.; Videbaek, F.; Wang, H.; Webb, J. C.; Webb, G.; 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.
[S'anchez, M. Calder'on de la Barca; Cebra, D.; Draper, J. E.; Flores, C. E.; Romero, J. L.] Univ Calif Davis, Davis, CA 95616 USA.
[Dunkelberger, L. E.; Esha, R.; Huang, H. Z.; Igo, G.; Landry, K. D.; Nasim, Md.; Pan, Y. X.; Shah, N.; Trentalange, S.; Tsai, O. D.; Wang, G.; Wen, L.; Zhao, F.] Univ Calif Los Angeles, Los Angeles, CA 90095 USA.
[de Souza, R. Derradi; Takahashi, J.; Vasconcelos, G. M. S.] Univ Estadual Campinas, BR-13131 Sao Paulo, Brazil.
[Feng; Huck, P.; Li, Z. M.; Liu, F.; Luo, X.; Pei, H.; Sun, X. M.; Wang, Y.; Yu, N.; Zhang, J. B.; Zhao, J.] Cent China Normal Univ, HZNU, Wuhan 430079, Peoples R China.
[Evdokimov, O.; Hofman, D. J.; Huang, B.; Kauder, K.; Khan, Z. H.; Pandit, Y.; Ye, Z.] Univ Illinois, Chicago, IL 60607 USA.
[Cherney, M.; De Silva, L. C.; Seger, J.] Creighton Univ, Omaha, NE 68178 USA.
[Bielcik, J.; Chaloupka, P.; Rusnakova, O.; Trzeciak, B. A.] Czech Tech Univ, FNSPE, Prague 11519, Czech Republic.
[Bielcikova, J.; Federic, P.; Rusnak, J.; Simko, M.; Sumbera, M.; Tlusty, D.; Vertesi, R.] Acad Sci Czech Republic, Inst Nucl Phys, CZ-25068 Rez, Czech Republic.
[Kisel, I.; Kollegger, T.; Kulakov, I.; Stock, R.; Zyzak, M.] Frankfurt Inst Adv Studies, D-60438 Frankfurt, Germany.
[Das, S.; Sahu, P. K.; Tripathy, S. K.] Inst Phys, Bhubaneswar 751005, Orissa, India.
[Nandi, B. K.; Sarkar, A.; Varma, R.] Indian Inst Technol, Bombay 400076, Maharashtra, India.
[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.; Kalinkin, D.; Svirida, D. N.] Alikhanov Inst Theoret & Expt Phys, Moscow 117218, Russia.
[Bhasin, A.; Gupta, S.; Gupta, A.; Sharma, M. K.] 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.; Hamad, A.; Keane, D.; Lomnitz, M.; Margetis, S.; Quintero, A.; Shanmuganathan, P. V.] Kent State Univ, Kent, OH 44242 USA.
[Adkins, J. K.; Fatemi, R.; Ramachandran, S.] Univ Kentucky, Lexington, KY 40506 USA.
[Jang, H.; Noh, S. Y.] Korea Inst Sci & Technol Informat, Taejon 305701, South Korea.
[Du, C. M.; Sun, Z.; Wang, J. S.; Xu, H.; Yang, Y.] Inst Modern Phys, Lanzhou 730000, Peoples R China.
[Contin, G.; Dong, X.; Greiner, L.; Klein, R.; Manion, A.; Masui, H.; Matis, H. S.; Mustafa, M. K.; Odyniec, G.; Porter, J.; Poskanzer, A. M.; Ritter, H. G.; Sakrejda, I.; Salur, S.; Schmah, A. M.; Shi, S. S.; Sichtermann, E. P.; Sun, X.; Szelezniak, M. A.; Thomas, J. H.; Wieman, H.; Xu, N.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[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.; Nigmatkulov, G.; Okorokov, V.; Strikhanov, M.] Moscow Engn Phys Inst, Moscow 115409, Russia.
[Haque, R.; Mohanty, B.] Natl Inst Sci Educ & Res, Bhubaneswar 751005, Orissa, India.
[Campbell, J. M.; Humanic, T. J.; Lisa, M. A.; Upsal, I.] Ohio State Univ, Columbus, OH 43210 USA.
[Kycia, R. A.; Pawlik, B.; Turnau, J.] PAN, Inst Nucl Phys, PL-31342 Krakow, Poland.
[Aggarwal, M. M.; Bhati, A. K.; Kumar, L.; Pruthi, N. K.; Sharma, B.] Panjab Univ, Chandigarh 160014, India.
[Dilks, C.; Heppelmann, S.; Summa, B. J.] Penn State Univ, University Pk, PA 16802 USA.
[Derevschikov, A. A.; Minaev, N. G.; Morozov, D. A.; Nogach, L. V.; Nurushev, S. B.; Vasiliev, A. N.] Inst High Energy Phys, Protvino 142281, Russia.
[Garand, D.; He, L.; Hirsch, A.; Scharenberg, R. P.; Srivastava, B.; Stringfellow, B.; Wang, F.; 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.; Roberts, J. B.; Xin, K.; Yepes, P.] Rice Univ, Houston, TX 77251 USA.
[Guo, Y.; Li, C.; Shao, M.; Sun, Y.; Tang, Z.; Yang, Q.; Yang, C.; Yang, S.; Zha, W.; Zhang, Y.] Univ Sci & Technol China, Hefei 230026, Peoples R China.
[Deng, J.; Xu, Q. H.; Zhang, J. L.] Shandong Univ, Jinan 250100, Shandong, Peoples R China.
[Chen, J. H.; Li, W.; Ma, L.; Ma, Y. G.; Shen, W. Q.; Shou, Q. Y.; Xu, Y. F.; Zhang, S.; Zhang, Z.; Zhong, C.] Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China.
[Kabana, S.] SUBATECH, F-44307 Nantes, France.
[Gunarathne, D. S.; Kraishan, A. F.; Li, X.; Olvitt, D. L., Jr.; Surrow, B.; Vandenbroucke, M.] Temple Univ, Philadelphia, PA 19122 USA.
[Cervantes, M. C.; Chang, Z.; Gagliardi, C. A.; Hamed, A.; Mioduszewski, S.; Mondal, M. M.; Sahoo, N. R.; Tribble, R. E.] Texas A&M Univ, College Stn, TX 77843 USA.
[Bhattarai, P.; Codrington, M. J. M.; Hoffmann, G. W.; Markert, C.; Ray, R. L.; Schambach, J.] Univ Texas Austin, Austin, TX 78712 USA.
[Bellwied, R.; McDonald, D.; Song, L.; Timmins, A. R.] Univ Houston, Houston, TX 77204 USA.
[Cheng, J.; Huang, X.; Kang, K.; Li, Y.; Wang, Y.; Xiao, Z.; Yan, W.; 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.; Nayak, T. K.; Roy, A.; Tribedy, P.; Viyogi, Y. P.] Ctr Variable Energy Cyclotron, Kolkata 700064, India.
[Girard, M.; Kikola, D. P.; Kisiel, A.; Kosarzewski, L. K.; Pawlak, T.; Pluta, J.; Poniatowska, K.; Sandacz, A.; Zbroszczyk, H.] Warsaw Univ Technol, PL-00661 Warsaw, Poland.
[Llope, W. J.; Putschke, J.; Voloshin, S. A.] Wayne State Univ, Detroit, MI 48201 USA.
[Magdy, N.; Tawfik, A. N.] World Lab Cosmol & Particle Phys, Cairo 11571, Egypt.
[Caines, H.; Harris, J. W.; Horvat, S.; Majka, R.; Sandweiss, J.; Smirnov, N.] Yale Univ, New Haven, CT 06520 USA.
[Planinic, M.; Poljak, N.] Univ Zagreb, HR-10002 Zagreb, Croatia.
RP Yi, L (reprint author), Purdue Univ, W Lafayette, IN 47907 USA.
EM yil@purdue.edu
RI Okorokov, Vitaly/C-4800-2017; Ma, Yu-Gang/M-8122-2013; Gunarathne,
Devika/C-4903-2017; Kycia, Radoslaw/J-4397-2015; Chaloupka,
Petr/E-5965-2012; Takahashi, Jun/B-2946-2012; Derradi de Souza,
Rafael/M-4791-2013; Xin, Kefeng/O-9195-2016; Yi, Li/Q-1705-2016;
Alekseev, Igor/J-8070-2014; Svirida, Dmitry/R-4909-2016; Tawfik, Abdel
Nasser/M-6220-2013; Inst. of Physics, Gleb Wataghin/A-9780-2017; Rusnak,
Jan/G-8462-2014; Sumbera, Michal/O-7497-2014; Fazio, Salvatore
/G-5156-2010
OI Okorokov, Vitaly/0000-0002-7162-5345; Ma, Yu-Gang/0000-0002-0233-9900;
Gunarathne, Devika/0000-0002-7155-7418; Kycia,
Radoslaw/0000-0002-6390-4627; Takahashi, Jun/0000-0002-4091-1779;
Derradi de Souza, Rafael/0000-0002-2084-7001; Xin,
Kefeng/0000-0003-4853-9219; Yi, Li/0000-0002-7512-2657; Alekseev,
Igor/0000-0003-3358-9635; Tawfik, Abdel Nasser/0000-0002-1679-0225;
Sumbera, Michal/0000-0002-0639-7323;
FU Office of NP within U.S. DOE Office of Science; Office of HEP within
U.S. DOE Office of Science; U.S. NSF; Sloan Foundation; DFG cluster of
excellence 'Origin and Structure of Universe' of Germany [CNRS/IN2P3];
CNRS/IN2P3 of United Kingdom; STFC of United Kingdom; EPSRC of United
Kingdom; FAPESP of Brazil; CNPq of Brazil; Ministry of Ed. and Sci. of
Russian Federation; NNSFC of China; CAS of China; MoST of China; MoE of
China; GA of Czech Republic; MSMT of Czech Republic; FOM of Netherlands;
NWO of Netherlands; DAE of India; DST of India; CSIR of India; Polish
Ministry of Sci. and Higher Ed. of Rep. of Croatia; Korea Research
Foundation of Rep. of Croatia; Ministry of Sci., Ed. and Sports of Rep.
of Croatia; Russian Ministry of Sci. and Tech. of Russia; 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, the DFG cluster of excellence 'Origin and Structure of the
Universe' of Germany, CNRS/IN2P3, STFC and EPSRC of the United Kingdom,
FAPESP CNPq of Brazil, Ministry of Ed. and Sci. of the Russian
Federation, NNSFC, CAS, MoST, and MoE of China, GA and MSMT of the Czech
Republic, FOM and NWO of the Netherlands, DAE, DST, and CSIR of India,
Polish Ministry of Sci. and Higher Ed., Korea Research Foundation,
Ministry of Sci., Ed. and Sports of the Rep. of Croatia, Russian
Ministry of Sci. and Tech., and RosAtom of Russia.
NR 30
TC 5
Z9 5
U1 3
U2 29
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0370-2693
EI 1873-2445
J9 PHYS LETT B
JI Phys. Lett. B
PD APR 9
PY 2015
VL 743
BP 333
EP 339
DI 10.1016/j.physletb.2015.02.068
PG 7
WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA CE9EU
UT WOS:000352147500051
ER
PT J
AU Economou, SE
Barnes, E
AF Economou, Sophia E.
Barnes, Edwin
TI Analytical approach to swift nonleaky entangling gates in
superconducting qubits
SO PHYSICAL REVIEW B
LA English
DT Article
ID QUANTUM PROCESSOR; CIRCUITS
AB We develop schemes for designing pulses that implement fast and precise entangling quantum gates in superconducting qubit systems despite the presence of nearby harmful transitions. Our approach is based on purposely involving the nearest harmful transition in the quantum evolution instead of trying to avoid it. Using analytical tools, we design simple microwave control fields that implement maximally entangling gates with fidelities exceeding 99% in times as low as 40 ns. We demonstrate our approach in a two-qubit circuit QED system by designing the two most important quantum entangling gates: a conditional-NOT gate and a conditional-Z gate. Our results constitute an important step toward overcoming the problem of spectral crowding, one of the primary challenges in controlling multiqubit systems.
C1 [Economou, Sophia E.] Naval Res Lab, Washington, DC 20375 USA.
[Barnes, Edwin] Univ Maryland, Condensed Matter Theory Ctr, College Pk, MD 20742 USA.
[Barnes, Edwin] Univ Maryland, Joint Quantum Inst, Dept Phys, College Pk, MD 20742 USA.
RP Economou, SE (reprint author), Naval Res Lab, Washington, DC 20375 USA.
RI Barnes, Edwin/A-1583-2013
FU LPS-CMTC; ONR
FX This work was supported by LPS-CMTC (E.B.) and in part by ONR (S.E.E.).
NR 45
TC 3
Z9 3
U1 0
U2 5
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 APR 9
PY 2015
VL 91
IS 16
AR 161405
DI 10.1103/PhysRevB.91.161405
PG 5
WC Physics, Condensed Matter
SC Physics
GA CF3SY
UT WOS:000352470000003
ER
PT J
AU Mones, L
Jones, A
Gotz, AW
Laino, T
Walker, RC
Leimkuhler, B
Csanyi, G
Bernstein, N
AF Mones, Letif
Jones, Andrew
Goetz, Andreas W.
Laino, Teodoro
Walker, Ross C.
Leimkuhler, Ben
Csanyi, Gabor
Bernstein, Noam
TI The Adaptive Buffered Force QM/MM Method in the CP2K and AMBER Software
Packages
SO JOURNAL OF COMPUTATIONAL CHEMISTRY
LA English
DT Article
DE quantum-mechanics; molecular-mechanics; adaptive quantum-mechanics;
molecular-mechanics; force-mixing; multiscale
ID MOLECULAR-DYNAMICS SIMULATION; SEMIEMPIRICAL METHODS; MULTISCALE
SIMULATIONS; ENZYMATIC-REACTIONS; CHEMICAL-REACTIONS; SYSTEMS; DENSITY;
PARAMETERS; APPROXIMATIONS; MODEL
AB The implementation and validation of the adaptive buffered force (AdBF) quantum-mechanics/molecular-mechanics (QM/MM) method in two popular packages, CP2K and AMBER are presented. The implementations build on the existing QM/MM functionality in each code, extending it to allow for redefinition of the QM and MM regions during the simulation and reducing QM-MM interface errors by discarding forces near the boundary according to the buffered force-mixing approach. New adaptive thermostats, needed by force-mixing methods, are also implemented. Different variants of the method are benchmarked by simulating the structure of bulk water, water autoprotolysis in the presence of zinc and dimethyl-phosphate hydrolysis using various semiempirical Hamiltonians and density functional theory as the QM model. It is shown that with suitable parameters, based on force convergence tests, the AdBF QM/MM scheme can provide an accurate approximation of the structure in the dynamical QM region matching the corresponding fully QM simulations, as well as reproducing the correct energetics in all cases. Adaptive unbuffered force-mixing and adaptive conventional QM/MM methods also provide reasonable results for some systems, but are more likely to suffer from instabilities and inaccuracies. (c) 2015 Wiley Periodicals, Inc.
C1 [Mones, Letif; Csanyi, Gabor] Univ Cambridge, Dept Engn, Cambridge CB2 1PZ, England.
[Jones, Andrew] Univ Edinburgh, Inst Condensed Matter & Complex Syst, Sch Phys & Astron, Edinburgh EH9 3JZ, Midlothian, Scotland.
[Goetz, Andreas W.; Walker, Ross C.] Univ Calif San Diego, San Diego Supercomp Ctr, La Jolla, CA 92093 USA.
[Laino, Teodoro] IBM Res Zurich, Math & Computat Sci Dept, CH-8803 Ruschlikon, Switzerland.
[Walker, Ross C.] Univ Calif San Diego, Dept Chem & Biochem, La Jolla, CA 92093 USA.
[Leimkuhler, Ben] Univ Edinburgh, Maxwell Inst, Edinburgh EH9 3JZ, Midlothian, Scotland.
[Leimkuhler, Ben] Univ Edinburgh, Sch Math, Edinburgh EH9 3JZ, Midlothian, Scotland.
[Bernstein, Noam] Naval Res Lab, Ctr Computat Mat Sci, Washington, DC 20375 USA.
RP Mones, L (reprint author), Univ Cambridge, Dept Engn, Cambridge CB2 1PZ, England.
EM lam81@cam.ac.uk
FU EPSRC [EP/G036136/1, EP/J01298X/1]; Scottish Funding Council; National
Institutes of Health [R01 GM100934]; Department of Energy
[DE-AC36-99GO-10337]; National Science Foundation [OCI-1148358];
National Science Foundation [Extreme Science and Engineering Discovery
Environment (XSEDE)] [ACI-1053575]
FX Contract grant sponsor: EPSRC (B.L.); Contract grant number:
EP/G036136/1; Contract grant sponsor: Scottish Funding Council (B.L.);
Contract grant sponsor: EPSRC (B.L. and G.C.); Contract grant number:
EP/J01298X/1; Contract grant sponsor: National Institutes of Health
(R.C.W. and A.W.G.); Contract grant number: R01 GM100934; Contract grant
sponsor: Department of Energy (A.W.G.); Contract grant number:
DE-AC36-99GO-10337; Contract grant sponsor: National Science Foundation;
Contract grant number: OCI-1148358; Contract grant sponsor: National
Science Foundation [Extreme Science and Engineering Discovery
Environment (XSEDE)]; Contract grant number: ACI-1053575
NR 74
TC 8
Z9 8
U1 9
U2 45
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0192-8651
EI 1096-987X
J9 J COMPUT CHEM
JI J. Comput. Chem.
PD APR 5
PY 2015
VL 36
IS 9
BP 633
EP 648
DI 10.1002/jcc.23839
PG 16
WC Chemistry, Multidisciplinary
SC Chemistry
GA CC4GV
UT WOS:000350311400006
PM 25649827
ER
PT J
AU Kukreja, V
Yuan, HR
Zhao, QJ
AF Kukreja, Vaibhav
Yuan, Hairong
Zhao, Qiuju
TI Stability of transonic jet with strong shock in two-dimensional steady
compressible Euler flows
SO JOURNAL OF DIFFERENTIAL EQUATIONS
LA English
DT Article
DE Compressible Euler equations; Transonic; Characteristic discontinuity;
Free boundary; Front tracking; Glimm functional
ID WELL-POSEDNESS; CONSERVATION-LAWS; PISTON PROBLEM; EQUATIONS; EXISTENCE;
SYSTEM
AB For steady supersonic flow past a solid convex corner surrounded by quiescent gas, if the pressure of the upcoming supersonic flow is lower than the pressure of the quiescent gas, there may appear a strong shock to increase the pressure and then a transonic characteristic discontinuity to separate the supersonic flow behind the shock-front from the still gas. In this paper, we prove the global existence, uniqueness, and stability of such flow patterns under suitable conditions on the upstream supersonic flow and the pressure of the surrounding quiescent gas, for the two-dimensional steady complete compressible Euler system. Mathematically, a global weak solution to a characteristic free boundary problem of hyperbolic conservation laws is constructed and shown to be unique and stable under the framework of front tracking method. (C) 2014 Elsevier Inc. All rights reserved.
C1 [Kukreja, Vaibhav] Ctr Decis Risk Controls & Signals Intelligence, Naval Postgrad Sch, Monterey, CA 93943 USA.
[Yuan, Hairong] E China Normal Univ, Shanghai Key Lab Pure Math & Math Practice, Dept Math, Shanghai 200241, Peoples R China.
[Zhao, Qiuju] E China Normal Univ, Dept Math, Shanghai 200241, Peoples R China.
RP Yuan, HR (reprint author), E China Normal Univ, Shanghai Key Lab Pure Math & Math Practice, Dept Math, Shanghai 200241, Peoples R China.
EM vkukreja@nps.edu; hairongyuan0110@gmail.com; zhaoqiuju2012@gmail.com
RI Yuan, Hairong/C-2160-2013
OI Yuan, Hairong/0000-0003-4873-3900
FU National Research Council Research Associateship Award at the Naval
Postgraduate School; National Natural Science Foundation of China
[11371141]
FX The research of Vaibhav Kukreja is supported in part by a National
Research Council Research Associateship Award at the Naval Postgraduate
School. Hairong Yuan (the corresponding author) and Qiuju Zhao are
supported by National Natural Science Foundation of China under Grant
No. 11371141. The manuscript was finished when Yuan was visiting the
Isaac Newton Institute for Mathematical Sciences, Cambridge, UK. He
would like to thank the institute for the support and hospitality during
the visit.
NR 19
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 0022-0396
EI 1090-2732
J9 J DIFFER EQUATIONS
JI J. Differ. Equ.
PD APR 5
PY 2015
VL 258
IS 7
BP 2572
EP 2617
DI 10.1016/j.jde.2014.12.017
PG 46
WC Mathematics
SC Mathematics
GA CB9FP
UT WOS:000349937700012
ER
PT J
AU Jones, B
Montgomery, DC
Silvestrini, RT
Steinberg, DM
AF Jones, Bradley
Montgomery, Douglas C.
Silvestrini, Rachel T.
Steinberg, David M.
TI Bridge Designs for Modeling Systems With Low Noise
SO TECHNOMETRICS
LA English
DT Article
DE Gaussian process model; Optimal design; Space-filling designs.; Computer
experiments
ID LATIN HYPERCUBE DESIGNS; COMPUTER EXPERIMENTS; CONSTRUCTION
AB For deterministic computer simulations, Gaussian process models are a standard procedure for fitting data. These models can be used only when the study design avoids having replicated points. This characteristic is also desirable for one-dimensional projections of the design, since it may happen that one of the design factors has a strongly nonlinear effect on the response. Latin hypercube designs have uniform one-dimensional projections, but are not efficient for fitting low-order polynomials when there is a small error variance. D-optimal designs are very efficient for polynomial fitting but have substantial replication in projections. We propose a new class of designs that bridge the gap between D-optimal designs and D-optimal Latin hypercube designs. These designs guarantee a minimum distance between points in any one-dimensional projection allowing for the fit of either polynomial or Gaussian process models. Subject to this constraint they are D-optimal for a prespecified model.
C1 [Jones, Bradley] SAS Inst, Cary, NC 27513 USA.
[Montgomery, Douglas C.] Arizona State Univ, Tempe, AZ 85287 USA.
[Silvestrini, Rachel T.] Naval Postgrad Sch, Monterey, CA 93943 USA.
[Steinberg, David M.] Tel Aviv Univ, IL-69978 Tel Aviv, Israel.
RP Jones, B (reprint author), SAS Inst, SAS Campus Dr, Cary, NC 27513 USA.
FU U.S.-Israel Binational Science Foundation [200818]
FX The authors thank the three referees, the Associate Editor, and the
Editor for suggestions that led to substantial improvements in the
article. The work of Bradley Jones and David Steinberg was funded in
part by the U.S.-Israel Binational Science Foundation under grant no.
200818.
NR 25
TC 3
Z9 3
U1 0
U2 1
PU AMER STATISTICAL ASSOC
PI ALEXANDRIA
PA 732 N WASHINGTON ST, ALEXANDRIA, VA 22314-1943 USA
SN 0040-1706
EI 1537-2723
J9 TECHNOMETRICS
JI Technometrics
PD APR 3
PY 2015
VL 57
IS 2
BP 155
EP 163
DI 10.1080/00401706.2014.923788
PG 9
WC Statistics & Probability
SC Mathematics
GA CM8HQ
UT WOS:000357940300002
ER
PT J
AU Weiland, C
Sterbinsky, GE
Rumaiz, AK
Hellberg, CS
Woicik, JC
Zhu, SB
Schlom, DG
AF Weiland, Conan
Sterbinsky, George E.
Rumaiz, Abdul K.
Hellberg, C. Stephen
Woicik, Joseph C.
Zhu, Shaobo
Schlom, Darrell G.
TI Stoichiometry dependence of potential screening at La(1-delta)
Al(1+delta)O3/SrTiO3 interfaces
SO PHYSICAL REVIEW B
LA English
DT Article
ID ANGULAR-DISTRIBUTION PARAMETERS; RAY PHOTOELECTRON-SPECTROSCOPY;
AUGMENTED-WAVE METHOD; RANGE 100-5000 EV; OXIDE INTERFACES;
CONDUCTIVITY; MECHANISM; SURFACES; SPECTRA
AB Hard x-ray photoelectron spectroscopy (HAXPES) and variable kinetic energy x-ray photoelectron spectroscopy (VKE-XPS) analyses have been performed on ten-unit-cell-thick La(1-delta)Al(1+delta)O3 films, with La: Al ratios of 1.1, 1.0, and 0.9, deposited on SrTiO3. Only Al-rich films are known to have a conductive interface. VKE-XPS, coupled with maximum entropy analysis, shows significant differences in the compositional depth profile among the Al-rich, La-rich, and stoichiometric films: significant La enrichment at the interface is observed in the La-rich and stoichiometric films, while the Al-rich film shows little to no intermixing. Additionally, the La-rich and stoichiometric films show a high concentration of Al at the surface, which is not observed in the Al-rich film. HAXPES valence band (VB) analysis shows a broadening of the VB for the Al-rich sample relative to the stoichiometric and La-rich samples. This broadening is consistent with an electric field across the Al-rich film. These results are consistent with a defect-driven electronic reconstruction.
C1 [Weiland, Conan; Woicik, Joseph C.] NIST, Gaithersburg, MD 20899 USA.
[Sterbinsky, George E.; Rumaiz, Abdul K.] Brookhaven Natl Lab, Natl Synchrotron Light Source, Upton, NY 11973 USA.
[Hellberg, C. Stephen] Naval Res Lab, Ctr Computat Mat Sci, Washington, DC 20375 USA.
[Zhu, Shaobo; Schlom, Darrell G.] Cornell Univ, Dept Mat Sci & Engn, Ithaca, NY 14853 USA.
[Schlom, Darrell G.] Cornell Univ, Kavli Inst Nanoscale Sci, Ithaca, NY 14853 USA.
RP Weiland, C (reprint author), NIST, Gaithersburg, MD 20899 USA.
EM rumaiz@bnl.gov
RI Weiland, Conan/K-4840-2012
FU U.S. Department of Energy, Office of Science, Office of Basic Energy
Sciences [DE-AC02-98CH10886]; Office of Naval Research through the Naval
Research Laboratory; AFOSR [FA6550-10-1-0524]
FX Use of the National Synchrotron Light Source, Brookhaven National
Laboratory, was supported by the U.S. Department of Energy, Office of
Science, Office of Basic Energy Sciences, under Contract No.
DE-AC02-98CH10886. The authors would like to thank Dr. Scott Chambers at
Pacific Northwest National Laboratory for useful discussions. C.H.
acknowledges support from the Office of Naval Research through the Naval
Research Laboratory's Basic Research Program. Computations were
performed at the AFRL and ERDC DoD Major Shared Resource Centers. Work
at Cornell was supported by the AFOSR under Grant No. FA6550-10-1-0524.
NR 38
TC 2
Z9 2
U1 1
U2 22
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 APR 3
PY 2015
VL 91
IS 16
AR 165103
DI 10.1103/PhysRevB.91.165103
PG 9
WC Physics, Condensed Matter
SC Physics
GA CE8WP
UT WOS:000352125100001
ER
PT J
AU Battaile, CC
Emery, JM
Brewer, LN
Boyce, BL
AF Battaile, Corbett C.
Emery, John M.
Brewer, Luke N.
Boyce, Brad L.
TI Crystal plasticity simulations of microstructure-induced uncertainty in
strain concentration near voids in brass
SO PHILOSOPHICAL MAGAZINE
LA English
DT Article
DE microstructure; texture; plastic deformation; finite element analysis;
defects
ID DEFORMATION
AB The uncertainty in mechanical response near a cylindrical hole in polycrystalline alpha brass was simulated as a function of variations in the crystallographic orientations of the grains near the hole. A total of 4 hole sizes were examined, including the case of a microstructure without a hole, and 45 simulations were performed for each case (yielding 180 simulations total) to acquire statistical data. For a hole larger than the grain size, the deformation resembles the homogenous solution but with perturbations due to the local microstructural environment. For a hole approximately equal to or smaller than the grain size, the deformation deviates substantially from the continuum behaviour, and depends strongly on the local microstructural environment surrounding the hole. Each population of simulations was analysed statistically to determine the effect of micro structural variability on strain localization near each of the four defect sizes. The coefficient of variation in the maximum plastic strain around microstructure-scale holes is about 37%, and the largest values of plastic strain are about twice those in the absence of microstructure. These results have significant implications for analyses of the margin of failure due to defects of this class (e.g. voids or small bolt holes).
C1 [Battaile, Corbett C.; Emery, John M.; Boyce, Brad L.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[Brewer, Luke N.] Naval Postgrad Sch, Monterey, CA 93943 USA.
RP Battaile, CC (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM ccbatta@sandia.gov
OI Emery, John /0000-0001-6671-4952
FU US Department of Energy's National Nuclear Security Administration
[DE-AC04-94AL85000]
FX The authors wish to thank Bonnie B McKenzie and Joel P McDonald for
their valuable contributions to this work. Sandia National Laboratories
is a multi-programme laboratory managed and operated by Sandia
Corporation, a wholly owned subsidiary of Lockheed Martin Corporation,
for the US Department of Energy's National Nuclear Security
Administration under contract DE-AC04-94AL85000.
NR 10
TC 2
Z9 2
U1 0
U2 10
PU TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
SN 1478-6435
EI 1478-6443
J9 PHILOS MAG
JI Philos. Mag.
PD APR 3
PY 2015
VL 95
IS 10
BP 1069
EP 1079
DI 10.1080/14786435.2015.1009958
PG 11
WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical
Engineering; Physics, Applied; Physics, Condensed Matter
SC Materials Science; Metallurgy & Metallurgical Engineering; Physics
GA CE7YW
UT WOS:000352058900003
ER
PT J
AU Chung, JH
Stanica, P
Tan, CH
Wang, QC
AF Chung, Jong H.
Stanica, Pantelimon
Tan, Chik-How
Wang, Qichun
TI A construction of Boolean functions with good cryptographic properties
SO INTERNATIONAL JOURNAL OF COMPUTER MATHEMATICS
LA English
DT Article
DE 94A60; 94C10; 11T71; resiliency; hidden weighted bit function; algebraic
immunity; avalanche characteristics; cryptographic Boolean functions;
nonlinearity
ID FAST ALGEBRAIC ATTACKS; HIGHER-ORDER NONLINEARITIES; BDD-BASED
CRYPTANALYSIS; KEYSTREAM GENERATORS; STREAM CIPHERS; FUNCTIONS
RESISTANT; LINEAR FEEDBACK; BENT FUNCTIONS; INFINITE CLASS; IMMUNITY
AB The two important qualities of a cipher are security and speed. Frequently, to satisfy the security of a Boolean function primitive, speed may be traded-off. In this paper, we present a general construction that addresses both qualities. The idea of our construction is to manipulate a cryptographically strong base function and one of its affine equivalent functions, using concatenation and negation. We achieve security from the inherent qualities of the base function, which are preserved (or increased), and obtain speed by the simple Boolean operations. We present two applications of the construction to demonstrate the flexibility and efficiency of the construction.
C1 [Chung, Jong H.; Stanica, Pantelimon] Naval Postgrad Sch, Dept Appl Math, Monterey, CA 93943 USA.
[Tan, Chik-How; Wang, Qichun] Natl Univ Singapore, Temasek Labs, Singapore 117411, Singapore.
RP Stanica, P (reprint author), Naval Postgrad Sch, Dept Appl Math, Monterey, CA 93943 USA.
EM pstanica@nps.edu
NR 40
TC 0
Z9 0
U1 0
U2 6
PU TAYLOR & FRANCIS LTD
PI ABINGDON
PA 2-4 PARK SQUARE, MILTON PARK, ABINGDON OR14 4RN, OXON, ENGLAND
SN 0020-7160
EI 1029-0265
J9 INT J COMPUT MATH
JI Int. J. Comput. Math.
PD APR 3
PY 2015
VL 92
IS 4
BP 700
EP 711
DI 10.1080/00207160.2014.920085
PG 12
WC Mathematics, Applied
SC Mathematics
GA AZ6FT
UT WOS:000348315200004
ER
PT J
AU Stanley, AY
Conner, BT
AF Stanley, Angela Y.
Conner, Brian T.
TI Implementing a Clinical Practice Guideline to Manage Postpartum Urinary
Retention
SO JOURNAL OF NURSING CARE QUALITY
LA English
DT Article
DE bladder care; childbirth; clinical practice guidelines; postpartum;
urinary retention
ID BLADDER
AB Postpartum urinary retention is a common condition in obstetric units. A Clinical Practice Guideline was implemented in a high-risk obstetrical unit to decrease variance of clinical practice, rate of postpartum urinary retention, and number of urinary catheterizations and increase awareness of this common condition. Guideline implementation met the 4 aims, including a decreased rate of urinary retention.
C1 [Stanley, Angela Y.] Walter Reed Natl Mil Med Ctr, Bethesda, MD USA.
[Conner, Brian T.] Med Univ S Carolina, Undergrad Programs, Coll Nursing, Charleston, SC USA.
RP Stanley, AY (reprint author), US Navy, Naval Med Ctr Portsmouth, 620 John Paul Jones Circle, Portsmouth, VA 23708 USA.
EM klemson@earthlink.net
NR 12
TC 1
Z9 1
U1 0
U2 0
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA TWO COMMERCE SQ, 2001 MARKET ST, PHILADELPHIA, PA 19103 USA
SN 1057-3631
EI 1550-5065
J9 J NURS CARE QUAL
JI J. Nurs. Care Qual.
PD APR-JUN
PY 2015
VL 30
IS 2
BP 175
EP 180
DI 10.1097/NCQ.0000000000000087
PG 6
WC Nursing
SC Nursing
GA DD0MV
UT WOS:000369615000013
PM 25166910
ER
PT J
AU Mungan, C
AF Mungan, Carl
TI Activating a radiometer with a hair dryer
SO PHYSICS TEACHER
LA English
DT Letter
C1 [Mungan, Carl] US Naval Acad, Dept Phys, Annapolis, MD 21402 USA.
RP Mungan, C (reprint author), US Naval Acad, Dept Phys, Annapolis, MD 21402 USA.
EM mungan@usna.edu
NR 1
TC 0
Z9 0
U1 0
U2 0
PU AMER ASSN PHYSICS TEACHERS
PI COLLEGE PK
PA 5110 ROANOKE PLACE SUITE 101, COLLEGE PK, MD 20740 USA
SN 0031-921X
J9 PHYS TEACH
JI Phys. Teach.
PD APR
PY 2015
VL 53
IS 4
BP 196
EP 196
DI 10.1119/1.4914551
PG 1
WC Physics, Multidisciplinary
SC Physics
GA CX5ZB
UT WOS:000365779900002
ER
PT J
AU Mungan, CE
AF Mungan, Carl E.
TI Negative Work Done by a Person
SO PHYSICS TEACHER
LA English
DT Editorial Material
C1 [Mungan, Carl E.] US Naval Acad, Annapolis, MD 21042 USA.
RP Mungan, CE (reprint author), US Naval Acad, Dept Phys, Annapolis, MD 21042 USA.
EM mungan@usna.gov
NR 5
TC 0
Z9 0
U1 0
U2 0
PU AMER ASSN PHYSICS TEACHERS
PI COLLEGE PK
PA 5110 ROANOKE PLACE SUITE 101, COLLEGE PK, MD 20740 USA
SN 0031-921X
J9 PHYS TEACH
JI Phys. Teach.
PD APR
PY 2015
VL 53
IS 4
BP 224
EP 224
DI 10.1119/1.4914563
PG 1
WC Physics, Multidisciplinary
SC Physics
GA CX5ZB
UT WOS:000365779900013
ER
PT J
AU Fox, WP
Everton, SF
AF Fox, William P.
Everton, Sean F.
TI Using data envelopment analysis and the analytical hierarchy process to
find node influences in a social network
SO JOURNAL OF DEFENSE MODELING AND SIMULATION-APPLICATIONS METHODOLOGY
TECHNOLOGY-JDMS
LA English
DT Article
DE Social network analysis; data envelopment analysis; analytical hierarchy
process
AB In a social network analysis the output provided includes many measures and metrics. For each of these measures and metrics, the output provides the ability to obtain a rank ordering of the nodes in terms of these measures. We might use this information in decision making concerning disrupting or deceiving a given network. All is fine when all the measures indicate the same node as the key or influential node. What happens when the measures indicate different key nodes? Our goal in this paper is to explore two methodologies to identify the key players or nodes in a given network. We apply two procedures to analyze these outputs to find the most influential nodes as a function of the decision makers' inputs. We use data envelopment analysis as a method to optimize efficiency of the nodes over all criteria and use the analytical hierarchy process (AHP) as a process to consider both subjective and objectives inputs through pairwise comparison matrices. We illustrate our results using two common networks from the literature: the kite network and the information flow network. We discuss some basic sensitivity analysis that can be applied to the methods. We find the AHP method as the most flexible method to weight the criterion based upon the decision makers' inputs or the topology of the network.
C1 [Fox, William P.; Everton, Sean F.] Naval Postgrad Sch, Dept Def Anal, Monterey, CA 93943 USA.
RP Fox, WP (reprint author), Naval Postgrad Sch, Dept Def Anal, 589 Dyer Rd,Room 103F, Monterey, CA 93943 USA.
EM wpfox@nps.edu
NR 14
TC 2
Z9 2
U1 0
U2 0
PU SAGE PUBLICATIONS INC
PI THOUSAND OAKS
PA 2455 TELLER RD, THOUSAND OAKS, CA 91320 USA
SN 1548-5129
EI 1557-380X
J9 J DEF MODEL SIMUL-AP
JI J. Def. Model. Simul.-Appl. Methodol. Technol.-JDMS
PD APR
PY 2015
VL 12
IS 2
BP 157
EP 165
DI 10.1177/1548512913518273
PG 9
WC Engineering, Multidisciplinary
SC Engineering
GA CV7YU
UT WOS:000364494100006
ER
PT J
AU D'Souza, E
Vickers, R
Zouris, J
Wing, V
Galarneau, M
AF D'Souza, Edwin
Vickers, Ross
Zouris, James
Wing, Vern
Galarneau, Michael
TI Development of empirically based time-to-death curves for combat
casualty deaths in Iraq and Afghanistan
SO JOURNAL OF DEFENSE MODELING AND SIMULATION-APPLICATIONS METHODOLOGY
TECHNOLOGY-JDMS
LA English
DT Article
DE Time to death; combat mortality; statistical modeling; log-normal
probability distribution
ID INJURY SEVERITY SCORE; MULTIPLE INJURIES; MORTALITY
AB The United States Department of Defense medical planners need survival-time estimates for anticipated patient streams associated with projected combat scenarios. Survival-time estimates should be grounded in empirical observations. Unfortunately, research in this domain has been limited to a single paper describing the development of died-of-wounds curves for combat casualties with life-threatening injuries. The curves developed from that research were based on a small dataset (n = 160, with 26 deaths and 134 survivors) of forward surgical (Role II) casualties and subject matter experts' judgments. This paper reports the first empirically based time-to-death curves for combat casualties based on a large sample. The results indicate that survival time varied across roles of care at which casualties died but was at most weakly associated with injury severity. Time-to-death curves were, therefore, developed for the overall study population of valid times to death and for Role I, Role II and Role III care. The log-logistic probability distribution provided the best representation of the survival times for the overall study population, while the log-normal distribution was the best choice for Role I, Role II and Role III care. The proposed time-to-death curves should refine the survival-time estimates used in combat medical logistics planning.
C1 [D'Souza, Edwin; Vickers, Ross; Zouris, James; Wing, Vern; Galarneau, Michael] Naval Hlth Res Ctr, Med Modeling Simulat & Mission Support Program, San Diego, CA 92106 USA.
RP D'Souza, E (reprint author), Naval Hlth Res Ctr, Dept 161, 140 Sylvester Rd, San Diego, CA 92106 USA.
EM edwin.dsouza@med.navy.mil
NR 22
TC 0
Z9 0
U1 0
U2 0
PU SAGE PUBLICATIONS INC
PI THOUSAND OAKS
PA 2455 TELLER RD, THOUSAND OAKS, CA 91320 USA
SN 1548-5129
EI 1557-380X
J9 J DEF MODEL SIMUL-AP
JI J. Def. Model. Simul.-Appl. Methodol. Technol.-JDMS
PD APR
PY 2015
VL 12
IS 2
BP 167
EP 178
DI 10.1177/1548512914531353
PG 12
WC Engineering, Multidisciplinary
SC Engineering
GA CV7YU
UT WOS:000364494100007
ER
PT J
AU Crawford, S
AF Crawford, Shakira
TI The awakening of the afro colombian communities. Stories of five
leaders: Dorina Hernandez, Libia Grueso, Carlos Rosero, Marino Cordoba
and Zulia Mena
SO REVISTA IBEROAMERICANA
LA Spanish
DT Book Review
C1 [Crawford, Shakira] US Naval Acad, Annapolis, MD 21402 USA.
RP Crawford, S (reprint author), US Naval Acad, Annapolis, MD 21402 USA.
NR 1
TC 0
Z9 0
U1 0
U2 0
PU INST INT LIT IBEROAMERICANA
PI PITTSBURGH
PA UNIV PITTSBURGH ATTN: ERIKA BRAGA 1312 CATHEDRAL OF LEARNING,
PITTSBURGH, PA 15260 USA
SN 0034-9631
J9 REV IBEROAMERICANA
JI Rev. Imberoam.
PD APR-JUN
PY 2015
VL 81
IS 251
BP 680
EP 681
PG 2
WC Literature, Romance
SC Literature
GA CU0QE
UT WOS:000363222700019
ER
PT J
AU Zheng, WM
Service, K
Markham, A
Reini, S
AF Zheng, Weimin
Service, Kathrine
Markham, Amanda
Reini, Seth
TI Recording Auditory and Visual Evoked Responses With Mobile EEG Systems
in a Computer Assisted Rehabilitation Environment (CAREN)
SO FASEB JOURNAL
LA English
DT Meeting Abstract
CT Experimental Biology Meeting
CY MAR 28-APR 01, 2015
CL Boston, MA
SP Amer Assoc Anatomists, Amer Physiol Soc, Amer Soc Biochem & Mol Biol, ASIP, ASN, ASPET
C1 [Zheng, Weimin; Service, Kathrine; Markham, Amanda; Reini, Seth] Warfighter Performance Naval Hlth Res Ctr, San Diego, CA USA.
NR 0
TC 0
Z9 0
U1 1
U2 2
PU FEDERATION AMER SOC EXP BIOL
PI BETHESDA
PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA
SN 0892-6638
EI 1530-6860
J9 FASEB J
JI Faseb J.
PD APR
PY 2015
VL 29
SU 1
MA 840.12
PG 2
WC Biochemistry & Molecular Biology; Biology; Cell Biology
SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other
Topics; Cell Biology
GA CS0BT
UT WOS:000361722703448
ER
PT J
AU Rolison, D
AF Rolison, Debra
TI Creating Change Scientific Institutions through Subversion, Revolution
(Title IX) & Climate Change
SO FASEB JOURNAL
LA English
DT Meeting Abstract
C1 [Rolison, Debra] US Naval Res Lab, Surface Chem Branch, Washington, DC USA.
NR 0
TC 0
Z9 0
U1 2
U2 2
PU FEDERATION AMER SOC EXP BIOL
PI BETHESDA
PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814-3998 USA
SN 0892-6638
EI 1530-6860
J9 FASEB J
JI Faseb J.
PD APR
PY 2015
VL 29
SU 1
MA 9.1
PG 1
WC Biochemistry & Molecular Biology; Biology; Cell Biology
SC Biochemistry & Molecular Biology; Life Sciences & Biomedicine - Other
Topics; Cell Biology
GA CR6PV
UT WOS:000361470501191
ER
PT J
AU Martin, BD
Fontana, J
Wang, Z
Trammell, SA
AF Martin, Brett D.
Fontana, Jake
Wang, Zheng
Trammell, Scott A.
TI Generation of fluorescent silver nanoclusters in reverse micelles using
gamma irradiation: low vs. high dosages and spectral evolution with time
SO APPLIED NANOSCIENCE
LA English
DT Article
DE Reverse micelles; Silver nanoparticles; Silver nanoclusters; Gamma
irradiation; Fluorescence; Fissile materials
ID BLOCK-COPOLYMERS; MICELLIZATION; WATER
AB Reverse micelles (RMs) containing aqueous solutions of Ag+ ions in their core produce fluorescent Ag nanoclusters (NCs), upon exposure to gamma irradiation. The fluorescence spectra of the NCs evolve over days to weeks after the exposure, and usually show large increases in intensity. Responses of as high as 2.8 9 10(4) CPS/Gy were reached. A dosage as low as 0.5 Gy (10 % of the lethal dosage for humans) produces NCs having fluorescence intensities higher than background. The RMs can be employed in novel gamma radiation detectors with appearance of fluorescence indicating that radiation was once present. In applications involving detection and tracking of fissile materials, the evolution of the fluorescence spectra over time may provide additional information about the radiation source. A two-phase liquid system is used for RM formation in a simple procedure. It is likely that this synthesis method may be adapted to produce NCs from other metal ions.
C1 [Martin, Brett D.; Fontana, Jake; Wang, Zheng; Trammell, Scott A.] Naval Res Lab, Washington, DC 20375 USA.
RP Martin, BD (reprint author), Naval Res Lab, Code 6900, Washington, DC 20375 USA.
EM bdm@cbmse.nrl.navy.mil; brett.martin@nrl.navy.mil;
scott.trammell@nrl.navy.mil
NR 15
TC 0
Z9 0
U1 1
U2 1
PU SPRINGER HEIDELBERG
PI HEIDELBERG
PA TIERGARTENSTRASSE 17, D-69121 HEIDELBERG, GERMANY
SN 2190-5509
EI 2190-5517
J9 APPL NANOSCI
JI Appl. Nanosci.
PD APR
PY 2015
VL 5
IS 4
BP 411
EP 418
DI 10.1007/s13204-014-0331-4
PG 8
WC Nanoscience & Nanotechnology
SC Science & Technology - Other Topics
GA CL9KO
UT WOS:000357297300003
ER
PT J
AU Caldwell, JD
Lindsay, L
Giannini, V
Vurgaftman, I
Reinecke, TL
Maier, SA
Glembocki, OJ
AF Caldwell, Joshua D.
Lindsay, Lucas
Giannini, Vincenzo
Vurgaftman, Igor
Reinecke, Thomas L.
Maier, Stefan A.
Glembocki, Orest J.
TI Low-loss, infrared and terahertz nanophotonics using surface phonon
polaritons
SO NANOPHOTONICS
LA English
DT Review
DE Reststrahlen; phonon - polariton; plasmonics; polar dielectric;
nanophotonic; metamaterial; infrared; terahertz
ID FUNCTIONAL PERTURBATION-THEORY; III-V SEMICONDUCTORS; SUBWAVELENGTH HOLE
ARRAYS; ATOMIC LAYER DEPOSITION; 4H-SIC PIN DIODES; SILICON-CARBIDE;
TEMPERATURE-DEPENDENCE; OPTICAL-PROPERTIES; RAMAN-SCATTERING; GRAPHENE
PLASMONICS
AB The excitation of surface-phonon-polariton (SPhP) modes in polar dielectric crystals and the associated new developments in the field of SPhPs are reviewed. The emphasis of this work is on providing an understanding of the general phenomenon, including the origin of the Reststrahlen band, the role that optical phonons in polar dielectric lattices play in supporting sub-diffraction-limited modes and how the relatively long optical phonon lifetimes can lead to the low optical losses observed within these materials. Based on this overview, the achievements attained to date and the potential technological advantages of these materials are discussed for localized modes in nanostructures, propagating modes on surfaces and in waveguides and novel metamaterial designs, with the goal of realizing low-loss nanophotonics and metamaterials in the mid-infrared to terahertz spectral ranges.
C1 [Caldwell, Joshua D.; Vurgaftman, Igor; Reinecke, Thomas L.; Glembocki, Orest J.] US Navy, Res Lab, Washington, DC 20375 USA.
[Lindsay, Lucas] NRL, Washington, DC USA.
[Giannini, Vincenzo; Maier, Stefan A.] Univ London Imperial Coll Sci Technol & Med, Dept Phys, Blackett Lab, London, England.
RP Caldwell, JD (reprint author), US Navy, Res Lab, 4555 Overlook Ave, Washington, DC 20375 USA.
EM joshua.caldwell@nrl.navy.mil
RI Lindsay, Lucas/C-9221-2012; Caldwell, Joshua/B-3253-2008
OI Lindsay, Lucas/0000-0001-9645-7993; Caldwell, Joshua/0000-0003-0374-2168
FU NRL Nanoscience Institute via Office of Naval Research; NRC-NRL
Postdoctoral Fellowship; EPSRC; Leverhulme Trust
FX Support for all NRL authors was provided by the NRL Nanoscience
Institute via Office of Naval Research funding. J.D.C. would like to
thank Prof. Alexander Grigorenko of the University of Manchester for his
helpful advice in tailoring this manuscript to a broader audience. The
authors would like to thank Prof. Alexandra Boltasseva, Mr. Jongbum Kim
and Mr. Urcan Guler for sharing the optical constants of TiN, AZO, GZO
and ITO for use in this review. We further thank Mr. Edward Sachet and
Prof. Jon-Paul Maria of North Carolina State University for providing
the optical constants of n-CdO for use in this review. We would also
like to thank Dr. James Long, Joseph Tischler, Chase Ellis and Alex
Boosalis for efforts in extracting optical constants of various SiC and
III-N materials available at NRL. J.D.C. would like to thank Prof.
Kostya Novoselov for access to his laboratory and office space at the
University of Manchester where work on this review was undertaken and
for access to hexagonal boron nitride materials for which the reported
optical constants are derived. The authors also thank Dr. Kathryn Wahl
and Jeffrey Owrutsky for access to the FTIR microscope used for the
spectra provided in Figure 2A. L.L. acknowledges the financial support
of the NRC-NRL Postdoctoral Fellowship. S.M. and V.G. acknowledge
support from EPSRC and Leverhulme Trust.
NR 181
TC 42
Z9 42
U1 41
U2 141
PU WALTER DE GRUYTER GMBH
PI BERLIN
PA GENTHINER STRASSE 13, D-10785 BERLIN, GERMANY
SN 2192-8606
EI 2192-8614
J9 NANOPHOTONICS-BERLIN
JI Nanophotonics
PD APR
PY 2015
VL 4
IS 1
BP 44
EP 68
DI 10.1515/nanoph-2014-0003
PG 25
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary;
Optics; Physics, Applied
SC Science & Technology - Other Topics; Materials Science; Optics; Physics
GA CL3XK
UT WOS:000356885100004
ER
PT J
AU Boris, DR
Fernsler, RF
Walton, SG
AF Boris, D. R.
Fernsler, R. F.
Walton, S. G.
TI Measuring the electron density, temperature, and electronegativity in
electron beam-generated plasmas produced in argon/SF6 mixtures
SO PLASMA SOURCES SCIENCE & TECHNOLOGY
LA English
DT Article
DE electron beam; electronegative plasma; Langmuir probe model; plasma
resonance; plasma processing; Maxwell's Demon; SF6 plasma
ID ENERGY DISTRIBUTION FUNCTION; LANGMUIR PROBE MEASUREMENTS; NEGATIVE-ION
FRACTION; MAGNETIC-FIELD; DISCHARGES; COLLECTION; EXTRACTION; PARAMETERS
AB This paper presents measurements of electron density (eta(e0)), electron temperature (T-e), and electronegativity (alpha) in electron beam-generated plasmas produced in mixtures of argon and SF6 using Langmuir probes and plasma resonance spectroscopy. Langmuir probe measurements are analyzed using a model capable of handling multi-component plasmas with both positive and negative ions. Verification of the model is provided through plasma frequency resonance measurements of n(e0). The results suggest a simple approach to ascertaining alpha in negative-ioncontaining plasmas using Langmuir probes alone. In addition, modest amounts of SF6 are shown to produce sharp increases in both T-c and alpha in electron beam generated plasmas.
C1 [Boris, D. R.; Walton, S. G.] US Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
[Fernsler, R. F.] Sotera Def Solut, Annapolis Jct, MD 20701 USA.
RP Boris, DR (reprint author), US Naval Res Lab, Div Plasma Phys, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM david.boris@nrl.navy.mil
FU Naval Research Laboratory Base Program
FX This work was supported by the Naval Research Laboratory Base Program.
NR 50
TC 5
Z9 5
U1 2
U2 11
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0963-0252
EI 1361-6595
J9 PLASMA SOURCES SCI T
JI Plasma Sources Sci. Technol.
PD APR
PY 2015
VL 24
IS 2
AR 025032
DI 10.1088/0963-0252/24/2/025032
PG 9
WC Physics, Fluids & Plasmas
SC Physics
GA CL2ZB
UT WOS:000356816200036
ER
PT J
AU Tripathi, OP
Baldwin, M
Charlton-Perez, A
Charron, M
Eckermann, SD
Gerber, E
Harrison, RG
Jackson, DR
Kim, BM
Kuroda, Y
Lang, A
Mahmood, S
Mizuta, R
Roff, G
Sigmond, M
Son, SW
AF Tripathi, Om P.
Baldwin, Mark
Charlton-Perez, Andrew
Charron, Martin
Eckermann, Stephen D.
Gerber, Edwin
Harrison, R. Giles
Jackson, David R.
Kim, Baek-Min
Kuroda, Yuhji
Lang, Andrea
Mahmood, Sana
Mizuta, Ryo
Roff, Greg
Sigmond, Michael
Son, Seok-Woo
TI The predictability of the extratropical stratosphere on monthly
time-scales and its impact on the skill of tropospheric forecasts
SO QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY
LA English
DT Review
DE stratospheric predictability; tropospheric forecast; seasonal
predictability
ID QUASI-BIENNIAL OSCILLATION; NORTHERN-HEMISPHERE WINTER;
GENERAL-CIRCULATION MODEL; SEA-SURFACE TEMPERATURES; POLAR-NIGHT VORTEX;
SUDDEN WARMINGS; ARCTIC OSCILLATION; PLANETARY-WAVES; ANNULAR MODE;
EL-NINO
AB Extreme variability of the winter- and spring-time stratospheric polar vortex has been shown to affect extratropical tropospheric weather. Therefore, reducing stratospheric forecast error may be one way to improve the skill of tropospheric weather forecasts. In this review, the basis for this idea is examined. A range of studies of different stratospheric extreme vortex events shows that they can be skilfully forecasted beyond 5 days and into the sub-seasonal range (0-30 days) in some cases. Separate studies show that typical errors in forecasting a stratospheric extreme vortex event can alter tropospheric forecast skill by 5-7% in the extratropics on sub-seasonal time-scales. Thus understanding what limits stratospheric predictability is of significant interest to operational forecasting centres. Both limitations in forecasting tropospheric planetary waves and stratospheric model biases have been shown to be important in this context.
C1 [Tripathi, Om P.; Charlton-Perez, Andrew; Harrison, R. Giles] Univ Reading, Dept Meteorol, Reading RG6 6BB, Berks, England.
[Baldwin, Mark] Univ Exeter, Coll Engn Math & Phys Sci, Exeter EX4 4QJ, Devon, England.
[Charron, Martin] Environm Canada, Meteorol Res Div, Dorval, PQ, Canada.
[Eckermann, Stephen D.] Naval Res Lab, Washington, DC 20375 USA.
[Gerber, Edwin] NYU, Courant Inst Math Sci, New York, NY 10003 USA.
[Jackson, David R.; Mahmood, Sana] Met Off, Exeter, Devon, England.
[Kim, Baek-Min] Korea Polar Res Inst, Inchon, South Korea.
[Kuroda, Yuhji; Mizuta, Ryo] Meteorol Res Inst, Tsukuba, Ibaraki 305, Japan.
[Lang, Andrea] SUNY Albany, Atmospher & Environm Sci, Albany, NY 12222 USA.
[Roff, Greg] Bur Meteorol, CAWCR, Melbourne, Vic, Australia.
[Sigmond, Michael] Environm Canada, Canadian Ctr Climate Modelling & Anal, Toronto, ON, Canada.
[Son, Seok-Woo] Seoul Natl Univ, Sch Earth & Environm Sci, Seoul 151, South Korea.
RP Tripathi, OP (reprint author), Univ Reading, Dept Meteorol, POB 243, Reading RG6 6BB, Berks, England.
EM o.p.tripathi@reading.ac.uk
RI Sigmond, Michael /K-3169-2012; Son, Seok-Woo /A-8797-2013
OI Sigmond, Michael /0000-0003-2191-9756;
FU Natural Environmental Research Council (NERC) [H5147600]; SPARC; EU
[284387]
FX This work is supported by the Natural Environmental Research Council
(NERC) funded project Stratospheric Network for the Assessment of
Predictability (SNAP) (Grant H5147600) and partially supported by the
SPARC. ACP and RGH acknowledge funding through the EU ARISE project
(Grant 284387) (EU-FP7). We also acknowledge Steven Pawson and Lawrence
Coy from NASA for providing Figure 1. We wish to thank Lorenzo Polvani
from Columbia University for providing Figure 4 and Amy Butler from NOAA
for her contribution to Figure 5. We thank Adrian Simmons of ECMWF for
his insightful review and two anonymous reviewers for their comments and
suggestions that improved the quality of the manuscript.
NR 214
TC 24
Z9 24
U1 6
U2 22
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 APR
PY 2015
VL 141
IS 689
BP 987
EP 1003
DI 10.1002/qj.2432
PN B
PG 17
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA CL2VW
UT WOS:000356805700001
ER
PT J
AU Kennedy, MJ
Conroy, MW
Dougherty, JA
Otto, N
Williams, BA
Ananth, R
Fleming, JW
AF Kennedy, Matthew J.
Conroy, Michael W.
Dougherty, John A.
Otto, Nicholas
Williams, Bradley A.
Ananth, Ramagopal
Fleming, James W.
TI Bubble coarsening dynamics in fluorinated and non-fluorinated
firefighting foams
SO COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
LA English
DT Article
DE Foam; Surfactant; Bubbles
ID SIZE DISTRIBUTION; AQUEOUS FOAMS; DRAINAGE; GASES; FILMS; WATER; MODEL;
SOLUBILITY; DIFFUSION
AB We have quantified the dynamics of bubble coarsening in some commercial firefighting foams. These multi-component foams contain unique chemical formulations leading to different coarsening and drainage behaviors. We show that these firefighting foams, some of which contain fluorocarbon surfactants and one of which contains only fluorine-free ingredients, as well as single-component, relatively well understood, sodium dodecyl sulfate (SDS) foam follow the self-similar bubble growth law that predicts increasing average bubble size with time. Further, the experimentally measured effective diffusion coefficients for coarsening are smallest for fluorinated foams, followed by a non-fluorinated firefighting foam, followed by SDS foam, as expected based on differences in surface tension. However, the effective diffusion coefficients derived from experiments on multi-component foams are smaller than predicted by the classical theory, which considers several physical properties including surface tension and lamella thickness. In contrast, the measured effective diffusion coefficient for SDS foam agrees with the theory. Therefore, the commercial firefighting foams coarsened slower than theoretically predicted relative to SDS foam, even after accounting for differences in surface tension and initial liquid content (C) 2015 Elsevier B.V. All rights reserved.
C1 [Kennedy, Matthew J.] Naval Res Lab, Former Natl Res Council Associate, Washington, DC 20375 USA.
[Conroy, Michael W.; Williams, Bradley A.; Ananth, Ramagopal] Naval Res Lab, Div Chem, Washington, DC 20375 USA.
[Dougherty, John A.; Otto, Nicholas] Naval Res Lab, Former Naval Res Enterprise Internship Program In, Washington, DC 20375 USA.
[Fleming, James W.] Nova Res Inc, Alexandria, VA 22308 USA.
RP Kennedy, MJ (reprint author), Naval Res Lab, Former Natl Res Council Associate, Washington, DC 20375 USA.
EM matthewjohnkennedy@gmail.com; jim.fleming.ctr@nrl.navy.mil
FU US Office of Naval Research through the Naval Research Laboratory;
National Research Council Research Associateship Award at the Naval
Research Laboratory; Office of Naval Research for summer research
assistantships through the Naval Research Enterprise Internship Program
FX The authors thank the US Office of Naval Research for funding this work
through the Naval Research Laboratory base funding program. This
research was performed while MJK held a National Research Council
Research Associateship Award at the Naval Research Laboratory. NO and
JAD thank the Office of Naval Research for summer research
assistantships through the Naval Research Enterprise Internship Program.
NR 30
TC 2
Z9 2
U1 0
U2 11
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0927-7757
EI 1873-4359
J9 COLLOID SURFACE A
JI Colloid Surf. A-Physicochem. Eng. Asp.
PD APR 1
PY 2015
VL 470
BP 268
EP 279
DI 10.1016/j.colsurfa.2015.01.062
PG 12
WC Chemistry, Physical
SC Chemistry
GA CE5ZA
UT WOS:000351913800034
ER
PT J
AU Emmert, JT
AF Emmert, J. T.
TI Altitude and solar activity dependence of 1967-2005 thermospheric
density trends derived from orbital drag
SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
LA English
DT Article
DE climate change; density; thermosphere
ID ATMOSPHERIC CARBON-DIOXIDE; MESOSPHERE; SATELLITE
AB We examine 1967-2005 thermospheric mass density trends (as well as 1967-2013 trends) derived from satellite orbit data, as a function of altitude, solar flux, and geomagnetic activity. At 400km altitude, the estimated 1967-2005 trend is -2.00.5%per decade. The estimated trends become increasingly negative with increasing height between 250 and 575km, suggesting an exospheric temperature trend of -1 to -2Kper decade, which is much smaller than temperature trends that have been inferred from ground-based incoherent scatter radar measurements. The orbit-derived trend height profiles are in good agreement with model simulations of the enhanced cooling that results from increasing concentration of CO2 in the mesosphere and lower thermosphere. In contrast to earlier results, the solar flux dependence of the estimated trends is weak, relative to the trend uncertainty. There is some indication that the trends may be stronger during very low geomagnetic activity conditions. Estimation of the solar flux and geomagnetic activity dependence of the trends is complicated by monotonic decreases in these drivers over the past four solar minima together with the CO2 increase, all of which drive interminima decreases in density.
C1 US Naval Res Lab, Space Sci Div, Washington, DC 20375 USA.
RP Emmert, JT (reprint author), US Naval Res Lab, Space Sci Div, Washington, DC 20375 USA.
EM john.emmert@nrl.navy.mil
NR 30
TC 12
Z9 12
U1 0
U2 9
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-9380
EI 2169-9402
J9 J GEOPHYS RES-SPACE
JI J. Geophys. Res-Space Phys.
PD APR
PY 2015
VL 120
IS 4
BP 2940
EP 2950
DI 10.1002/2015JA021047
PG 11
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA CI6TL
UT WOS:000354894800041
ER
PT J
AU Kil, H
Kwak, YS
Lee, WK
Krall, J
Huba, JD
Oh, SJ
AF Kil, Hyosub
Kwak, Young-Sil
Lee, Woo Kyoung
Krall, Jonathan
Huba, Joseph D.
Oh, Seung-Jun
TI Nonmigrating tidal signature in the distributions of equatorial plasma
bubbles and prereversal enhancement
SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
LA English
DT Article
DE plasma bubble; nonmigrating tide; equatorial ionosphere
ID SPREAD-F; DENSITY IRREGULARITIES; MODEL; IONOSPHERE; ATMOSPHERE;
SATELLITE; MIDDLE; RADAR; WINDS
AB Some wave-like features in the longitudinal distribution of equatorial plasma bubbles understood in association with diurnal eastward propagating zonal wave number 3 nonmigrating tide (DE3) in the dayside. However, whether or not the wave features are the daytime DE3 signature has not yet been rigorously investigated. This study investigates (1) the existence of the DE3 signature in the longitudinal distribution of bubbles by analyzing the first Republic of China (ROCSAT-1) satellite data acquired in 2000-2002 and (2) the role of daytime DE3 in the creation of bubbles by examining the linear growth rate of the generalized Rayleigh-Taylor (R-T) instability. The linear growth rate is derived from the Sami2 is Another Model of the Ionosphere model simulation results. In the longitudinal distribution of bubbles derived from ROCSAT-1 observations, the wave number 4 component, the representative characteristic of DE3, is a weak feature. In addition, the amplitude and phase of the wave number 4 component do not show a consistent behavior in comparison with those of DE3. Our numerical calculation results show that the linear growth rate of the R-T instability is not sensitive to the variation of the daytime vertical plasma drift. These results indicate that the DE3 signature in the occurrence rate of bubbles is not obvious and the effect of daytime DE3 on the creation of bubbles is negligible.
C1 [Kil, Hyosub] Johns Hopkins Univ, Appl Phys Lab, Laurel, MD 20723 USA.
[Kil, Hyosub; Kwak, Young-Sil; Lee, Woo Kyoung] Korea Astron & Space Sci Inst, Taejon, South Korea.
[Kwak, Young-Sil] Korea Univ Technol & Sci, Taejon, South Korea.
[Krall, Jonathan; Huba, Joseph D.] Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
[Oh, Seung-Jun] Space Environm Lab Inc, Seoul, South Korea.
RP Kil, H (reprint author), Johns Hopkins Univ, Appl Phys Lab, Laurel, MD 20723 USA.
EM hyosub.kil@jhuapl.edu
RI Kil, Hyosub/C-2577-2016
OI Kil, Hyosub/0000-0001-8288-6236
FU National Aeronautics and Space Administration Geospace Science program
[NNX12AD17G]; National Science Foundation Aeronomy program
[AGS-1237276]; Korea Astronomy and Space Science Institute (KASI)
[2014-1-80008]; U.S. Air Force Research Laboratory [FA 2386-14-1-4004];
"Planetary system research for space exploration" project from Korea
KASI; LWS NASA; NRL Base Funds
FX H. Kil acknowledges support from the National Aeronautics and Space
Administration Geospace Science program (NNX12AD17G) and National
Science Foundation Aeronomy program (AGS-1237276). W.K. Lee acknowledges
support by a basic research fund from Korea Astronomy and Space Science
Institute (KASI) (2014-1-80008). Y.-S. Kwak acknowledges support by a
grant from the U.S. Air Force Research Laboratory under agreement FA
2386-14-1-4004 and by the "Planetary system research for space
exploration" project from Korea KASI. The work of J. Krall and J. Huba
is supported by an LWS NASA grant and NRL Base Funds. The ROCSAT-1 and
SAMI2 model simulation data are available by contacting H. Kil
(hyosub.kil@jhuapl.edu).
NR 30
TC 1
Z9 1
U1 2
U2 5
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 APR
PY 2015
VL 120
IS 4
BP 3254
EP 3262
DI 10.1002/2014JA020908
PG 9
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA CI6TL
UT WOS:000354894800064
ER
PT J
AU Alderson, DL
Brown, GG
Carlyle, WM
AF Alderson, David L.
Brown, Gerald G.
Carlyle, W. Matthew
TI Operational Models of Infrastructure Resilience
SO RISK ANALYSIS
LA English
DT Article
DE Attacker-defender; infrastructure; optimization; resilience; system
operation
ID TERRORISM RISK; PROBABILISTIC RISK; SYSTEMS; OPTIMIZATION; INTERNET;
INTERDICTION; SUPPORT; DEFENSE; ROBUST
AB We propose a definition of infrastructure resilience that is tied to the operation (or function) of an infrastructure as a system of interacting components and that can be objectively evaluated using quantitative models. Specifically, for any particular system, we use quantitative models of system operation to represent the decisions of an infrastructure operator who guides the behavior of the system as a whole, even in the presence of disruptions. Modeling infrastructure operation in this way makes it possible to systematically evaluate the consequences associated with the loss of infrastructure components, and leads to a precise notion of operational resilience that facilitates model verification, validation, and reproducible results. Using a simple example of a notional infrastructure, we demonstrate how to use these models for (1) assessing the operational resilience of an infrastructure system, (2) identifying critical vulnerabilities that threaten its continued function, and (3) advising policymakers on investments to improve resilience.
C1 [Alderson, David L.; Brown, Gerald G.; Carlyle, W. Matthew] Naval Postgrad Sch, Dept Operat Res, Monterey, CA 93943 USA.
RP Alderson, DL (reprint author), Naval Postgrad Sch, Dept Operat Res, Monterey, CA 93943 USA.
EM dlalders@nps.edu
FU Office of Naval Research; Air Force Office of Scientific Research;
Defense Threat Reduction Agency
FX This research was supported by the Office of Naval Research, the Air
Force Office of Scientific Research, and the Defense Threat Reduction
Agency. The authors gratefully acknowledge Kevin Wood and Javier
Salmeron for ongoing discussions and collaborations that have
contributed to the ideas in this article.
NR 118
TC 7
Z9 7
U1 10
U2 25
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0272-4332
EI 1539-6924
J9 RISK ANAL
JI Risk Anal.
PD APR
PY 2015
VL 35
IS 4
BP 562
EP 586
DI 10.1111/risa.12333
PG 25
WC Public, Environmental & Occupational Health; Mathematics,
Interdisciplinary Applications; Social Sciences, Mathematical Methods
SC Public, Environmental & Occupational Health; Mathematics; Mathematical
Methods In Social Sciences
GA CJ2AZ
UT WOS:000355287900004
PM 25808298
ER
PT J
AU Anderson, TJ
Hobart, KD
Greenlee, JD
Shahin, DI
Koehler, AD
Tadjer, MJ
Imhoff, EA
Myers-Ward, RL
Christou, A
Kub, FJ
AF Anderson, Travis J.
Hobart, Karl D.
Greenlee, Jordan D.
Shahin, David I.
Koehler, Andrew D.
Tadjer, Marko J.
Imhoff, Eugene A.
Myers-Ward, Rachael L.
Christou, Aris
Kub, Francis J.
TI Ultraviolet detector based on graphene/SiC heterojunction
SO APPLIED PHYSICS EXPRESS
LA English
DT Article
ID EXTREME-ULTRAVIOLET; EPITAXIAL GRAPHENE
AB There has been significant research on graphene as a sensor owing to the inherent high sensitivity and surface area associated with two-dimensional (2D) materials. Often, the ability of graphene to form heterojunctions with wide-bandgap semiconductors is overlooked. In this study, we present a detector based on an epitaxial graphene/SiC heterojunction, exploiting the 2D nature of graphene to minimize absorption losses for high-efficiency sensing while simultaneously taking advantage of the epitaxial p-n junction to achieve low reverse leakage. We measured a quantum efficiency above 80% at 4 eV using a graphene/SiC p-n heterojunction with a dark current <1nA/cm(2). (C) 2015 The Japan Society of Applied Physics
C1 [Anderson, Travis J.; Hobart, Karl D.; Greenlee, Jordan D.; Koehler, Andrew D.; Tadjer, Marko J.; Imhoff, Eugene A.; Myers-Ward, Rachael L.; Kub, Francis J.] US Naval Res Lab, Washington, DC 20375 USA.
[Shahin, David I.; Christou, Aris] Univ Maryland, College Pk, MD 20742 USA.
RP Anderson, TJ (reprint author), US Naval Res Lab, Washington, DC 20375 USA.
EM travis.anderson@nrl.navy.mil
FU Office of Naval Research
FX J.D.G. thanks the National Research Council Postdoctoral Fellowship
Program. M.J.T. thanks the American Society for Engineering Education
Postdoctoral Fellowship Program. Work at the Naval Research Laboratory
is supported by the Office of Naval Research.
NR 18
TC 5
Z9 5
U1 6
U2 50
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 1882-0778
EI 1882-0786
J9 APPL PHYS EXPRESS
JI Appl. Phys. Express
PD APR
PY 2015
VL 8
IS 4
AR 041301
DI 10.7567/APEX.8.041301
PG 3
WC Physics, Applied
SC Physics
GA CI4DK
UT WOS:000354696900003
ER
PT J
AU Paget, AC
Bourassa, MA
Anguelova, MD
AF Paget, Aaron C.
Bourassa, Mark A.
Anguelova, Magdalena D.
TI Comparing in situ and satellite-based parameterizations of oceanic
whitecaps
SO JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
LA English
DT Article
DE whitecap fraction; foam fraction; whitecap coverage; breaking waves;
actively breaking waves; air-sea interaction processes; in situ whitecap
observations scatterometers; QuikSCAT; WindSat; microwave radiometry;
passive remote sensing; satellite oceanography
ID WAVE-FIELD CONDITIONS; SEA GAS TRANSFER; MICROWAVE EMISSIVITY;
WIND-SPEED; WATER TEMPERATURE; BREAKING WAVES; COVERAGE; SURFACE; FOAM;
ALGORITHM
AB The majority of the parameterizations developed to estimate whitecap fraction uses a stability-dependent 10 m wind (U-10) measured in situ, but recent efforts to use satellite-reported equivalent neutral winds (U-10EN) to estimate whitecap fraction with the same parameterizations introduce additional error. This study identifies and quantifies the differences in whitecap parameterizations caused by U-10 and U-10EN for the active and total whitecap fractions. New power law coefficients are presented for both U-10 and U-10EN parameterizations based on available in situ whitecap observations. One-way analysis of variance (ANOVA) tests are performed on the residuals of the whitecap parameterizations and the whitecap observations and identify that parameterizations in terms of U-10 and U-10EN perform similarly. The parameterizations are also tested against the satellite-based WindSat Whitecap Database to assess differences. The improved understanding aids in estimating whitecap fraction globally using satellite products and in determining the global effects of whitecaps on air-sea processes and remote sensing of the surface.
C1 [Paget, Aaron C.] Brigham Young Univ, Microwave Earth Remote Sensing Lab, Provo, UT 84602 USA.
[Paget, Aaron C.; Bourassa, Mark A.] Florida State Univ, Dept Earth Ocean & Atmospher Sci, Tallahassee, FL 32306 USA.
[Paget, Aaron C.; Bourassa, Mark A.] Florida State Univ, Ctr Ocean Atmospher Predict Studies, Tallahassee, FL 32306 USA.
[Anguelova, Magdalena D.] Naval Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
RP Paget, AC (reprint author), Brigham Young Univ, Microwave Earth Remote Sensing Lab, Provo, UT 84602 USA.
EM aaroncpaget@gmail.com
FU NOAA/COD; NASA OVWST; Office of Naval Research, NRL Program [61153N]
FX This work was supported by NOAA/COD and NASA OVWST. Magdalena D.
Anguelova was supported by the Office of Naval Research, NRL Program
element 61153N, work units WU 8967 and WU 4500. A. Callaghan provided
the tabulated whitecap data with associated environmental conditions
from the Marine Aerosol Production (MAP) campaign. All other data come
from the references listed in Table 2. The data, including the
calculated U10EN values, are available in tabulated form from the
corresponding author, A. Paget, at aaroncpaget@gmail.com. We appreciate
the comments and suggestions by three anonymous reviewers.
NR 71
TC 2
Z9 2
U1 2
U2 9
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-9275
EI 2169-9291
J9 J GEOPHYS RES-OCEANS
JI J. Geophys. Res.-Oceans
PD APR
PY 2015
VL 120
IS 4
BP 2826
EP 2843
DI 10.1002/2014JC010328
PG 18
WC Oceanography
SC Oceanography
GA CI0HH
UT WOS:000354417200026
ER
PT J
AU Menon, G
Dermer, C
AF Menon, Govind
Dermer, Charles
TI Local, non-geodesic, timelike currents in the force-free magnetosphere
of a Kerr black hole
SO GENERAL RELATIVITY AND GRAVITATION
LA English
DT Article
DE Black hole electrodynamics; Force-free magnetosphere
ID ELECTROMAGNETIC EXTRACTION; ANALYTIC SOLUTIONS; ENERGY
AB In this paper, we use previously developed exact solutions to present some of the curious features of a force-free magnetosphere in a Kerr background. More precisely, we obtain a hitherto unseen timelike current in the force-free magnetosphere that does not flow along a geodesic. The electromagnetic field in this case happens to be magnetically dominated. Changing the sign of a single parameter in our solutions generates a spacelike current that creates an electromagnetic field that is electrically dominated.
C1 [Menon, Govind] Troy Univ, Dept Chem & Phys, Troy, AL 36082 USA.
[Dermer, Charles] Naval Res Lab, Washington, DC 20375 USA.
RP Menon, G (reprint author), Troy Univ, Dept Chem & Phys, Troy, AL 36082 USA.
EM gmenon@troy.edu
FU Troy University; Chief of Naval research funds
FX The first author would like to thank Troy University for their continued
support of our research in black hole astrophysics. The Chief of Naval
research funds and supports the second author.
NR 17
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER/PLENUM PUBLISHERS
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0001-7701
EI 1572-9532
J9 GEN RELAT GRAVIT
JI Gen. Relativ. Gravit.
PD APR
PY 2015
VL 47
IS 4
AR 52
DI 10.1007/s10714-015-1896-2
PG 14
WC Astronomy & Astrophysics; Physics, Multidisciplinary; Physics, Particles
& Fields
SC Astronomy & Astrophysics; Physics
GA CH9XC
UT WOS:000354388800005
ER
PT J
AU Pande, CS
AF Pande, C. S.
TI A possible model of grain size distribution during primary
recrystallization
SO MODELLING AND SIMULATION IN MATERIALS SCIENCE AND ENGINEERING
LA English
DT Article
DE stochastic; lognormal; recrystallization
ID COMPUTER-SIMULATION; DYNAMIC RECRYSTALLIZATION; NUCLEATION RATE; GROWTH;
MICROSTRUCTURES; METALS
AB A mathematical model of grain size development during annealing in a polycrystalline metallic system is proposed. The model is based on the simple assumption that at any point during recrystallization the increment in grain size is a random proportion of the grain size at that instant. The model predicts a lognormal distribution in grain sizes under a wide variety of conditions. The width of this distribution is found to broaden with time. The model is compared with experiments and computational predictions. It is argued that this model may represent materials undergoing primary recrystallization in some cases.
C1 Naval Res Lab, Washington, DC 20375 USA.
RP Pande, CS (reprint author), Naval Res Lab, Washington, DC 20375 USA.
EM chandra.pande@nrl.navy.mil
FU Office of Naval Research through the Naval Research Laboratory
FX This work was sponsored by the Office of Naval Research through the
Naval Research Laboratory.
NR 22
TC 0
Z9 0
U1 2
U2 7
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0965-0393
EI 1361-651X
J9 MODEL SIMUL MATER SC
JI Model. Simul. Mater. Sci. Eng.
PD APR
PY 2015
VL 23
IS 3
AR 035009
DI 10.1088/0965-0393/23/3/035009
PG 7
WC Materials Science, Multidisciplinary; Physics, Applied
SC Materials Science; Physics
GA CH3RM
UT WOS:000353948000009
ER
PT J
AU Dew, N
Grichnik, D
Mayer-Haug, K
Read, S
Brinckmann, J
AF Dew, Nicholas
Grichnik, Dietmar
Mayer-Haug, Katrin
Read, Stuart
Brinckmann, Jan
TI Situated Entrepreneurial Cognition
SO INTERNATIONAL JOURNAL OF MANAGEMENT REVIEWS
LA English
DT Article
ID TRANSACTIVE MEMORY-SYSTEMS; VENTURE CREATION; BOUNDARY OBJECTS; NASCENT
ENTREPRENEURS; EMBODIED COGNITION; FOUNDING TEAM; OPPORTUNITIES;
PERSPECTIVE; INNOVATION; KNOWLEDGE
AB This paper reviews and integrates research from both within and outside the entrepreneurship field under the label of situated cognition'. Situated cognition is the notion that cognitive activity inherently involves perception and action in the context of a human body situated in a real-world environment. The review concentrates on three areas of the situated cognition literature that have significant implications for research in entrepreneurial cognition: embedded, grounded and distributed cognition. While these three aspects of cognition differ in terms of foci and core theses, they share the common emphasis of viewing and investigating cognitive processes by going beyond the individual mind and paying attention to the human body, (material) objects and other people. Using the theoretical lens of situated cognition provides new insights into current entrepreneurship phenomena such as co-creation and interaction in a shared economy based on new technologies.
C1 [Dew, Nicholas] Naval Postgrad Sch, Monterey, CA 93943 USA.
[Grichnik, Dietmar] Univ St Gallen, CH-9000 St Gallen, Switzerland.
[Mayer-Haug, Katrin] WHU Otto Beisheim Sch Management, D-56179 Vallendar, Germany.
[Read, Stuart] IMD, CH-1001 Lausanne, Switzerland.
[Brinckmann, Jan] ESADE Grad Sch Business, Barcelona 08034, Spain.
RP Grichnik, D (reprint author), Univ St Gallen, Dufourstr 40a, CH-9000 St Gallen, Switzerland.
EM dietmar.grichnik@unisg.ch
NR 168
TC 0
Z9 0
U1 11
U2 40
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1460-8545
EI 1468-2370
J9 INT J MANAG REV
JI Int. J. Manag. Rev.
PD APR
PY 2015
VL 17
IS 2
SI SI
BP 143
EP 164
DI 10.1111/ijmr.12051
PG 22
WC Business; Management
SC Business & Economics
GA CH2UX
UT WOS:000353881300002
ER
PT J
AU Tucker, E
AF Tucker, Ernest
TI Persia in Crisis: Safavid Decline and the Fall of Isfahan
SO ISLAM-ZEITSCHRIFT FUR GESCHICHTE UND KULTUR DES ISLAMISCHEN ORIENTS
LA English
DT Book Review
C1 [Tucker, Ernest] US Naval Acad, Annapolis, MD 21402 USA.
RP Tucker, E (reprint author), US Naval Acad, Annapolis, MD 21402 USA.
EM tucker@usna.edu
NR 1
TC 0
Z9 0
U1 0
U2 1
PU WALTER DE GRUYTER GMBH
PI BERLIN
PA GENTHINER STRASSE 13, D-10785 BERLIN, GERMANY
SN 0021-1818
EI 1613-0928
J9 ISLAM
JI Islam-Z. Gesch. Kultur Islam. Orients
PD APR
PY 2015
VL 92
IS 1
BP 280
EP 284
PG 5
WC Asian Studies; Religion
SC Asian Studies; Religion
GA CG6ZX
UT WOS:000353452800018
ER
PT J
AU Ryglicki, DR
Hart, RE
AF Ryglicki, David R.
Hart, Robert E.
TI An Investigation of Center-Finding Techniques for Tropical Cyclones in
Mesoscale Models
SO JOURNAL OF APPLIED METEOROLOGY AND CLIMATOLOGY
LA English
DT Article
ID HIGH-RESOLUTION SIMULATION; HURRICANE BONNIE 1998; SINGLE-DOPPLER RADAR;
EXTRATROPICAL TRANSITION; PART II; VERTICAL SHEAR; KINEMATIC STRUCTURE;
NUMERICAL-MODELS; CONSISTENT TIME; INNER-CORE
AB A variety of tropical-cyclone (TC) center-finding methods aggregated from previous works of mesoscale modeling and operational analysis are compared. The previous methods used can be divided into three classes: local extreme, weighted grid point, and minimization of azimuthal variance. To analyze these methods, four representative separate TC forecasts from three operational models-the Coupled Ocean-Atmosphere Mesoscale Prediction System Tropical Cyclone version, a Geophysical Fluid Dynamics Laboratory model, and the Hurricane Weather Research and Forecasting Model-are examined. It is found that for this dataset the spread of the derived TC centers is fairly small between 1000 and 600 hPa but begins to increase rapidly at higher levels. All models exhibit increased center spread at upper levels when the TCs' strengths fall below approximately hurricane strength. On a given pressure level, tangential wind differences calculated from different centers are generally small and localized, whereas radial wind differences are often much larger in both space and relative magnitude. Center-finding techniques that use mass fields to calculate centers exhibit the smallest vertical tilts for hurricane-strength TCs. Conversely, potential vorticity centroids with large weighting areas produce the largest tilts. Given the potential sensitivity of center determination and implied tilt for various other measures of TC structure (radius of maximum winds), these results may have large repercussions on both past and future analyses.
C1 [Ryglicki, David R.] Fleet Numer Meteorol & Oceanog Ctr, Monterey, CA USA.
[Hart, Robert E.] Florida State Univ, Dept Earth Ocean & Atmospher Sci, Tallahassee, FL 32306 USA.
RP Ryglicki, DR (reprint author), Naval Res Lab, 7 Grace Hopper Ave,Stop 2,Rm 254,Bldg 704, Monterey, CA 93940 USA.
EM david.ryglicki.ctr@nrlmry.navy.mil
FU Science, Mathematics, and Research for Transformation (SMART) fellowship
at Florida State University
FX A portion of this work was performed while the first author held a
Science, Mathematics, and Research for Transformation (SMART) fellowship
at Florida State University. DRR acknowledges Elizabeth Satterfield
(NRL) and Justin McLay (NRL) for guidance on statistical analysis,
Raymond Lee (FNMOC) for helpful opinions on visualization, Kevin Viner
(NRL), and Benjamin Schenkel (University at Albany) for enlightening
discussion on the topic at hand, and Jonathan Hodapp (FNMOC) for
editorial assistance. We also acknowledge the helpful suggestions of two
anonymous reviewers. Their contributions greatly enhanced this paper's
structure and content. DRR dedicates this work to his friend D. Philip
Lane, gone too soon. DRR also thanks Paul Reasor (HRD) for supplying the
initial simplex routine and for initial guidance on his Ph.D work.
NR 60
TC 2
Z9 2
U1 1
U2 6
PU AMER METEOROLOGICAL SOC
PI BOSTON
PA 45 BEACON ST, BOSTON, MA 02108-3693 USA
SN 1558-8424
EI 1558-8432
J9 J APPL METEOROL CLIM
JI J. Appl. Meteorol. Climatol.
PD APR
PY 2015
VL 54
IS 4
BP 825
EP 846
DI 10.1175/JAMC-D-14-0106.1
PG 22
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA CG8QW
UT WOS:000353576200009
ER
PT J
AU Gillman, ED
Williams, J
Compton, CS
Amatucci, WE
AF Gillman, Eric D.
Williams, Jeremiah
Compton, C. S.
Amatucci, W. E.
TI Microparticle injection effects on microwave transmission through an
overly dense plasma layer
SO PHYSICS OF PLASMAS
LA English
DT Article
ID DUSTY PLASMAS; SCATTERING
AB Microparticles injected into a plasma have been shown to deplete the free electron population as electrons are collected through the process of microparticles charging to the plasma floating potential. However, these charged microparticles can also act to scatter electromagnetic signals. These experiments investigate microwave penetration through a previously impenetrable overly dense plasma layer as microparticles are injected and the physical phenomena associated with the competing processes that occur due to electron depletion and microwave scattering. The timescales for when each of these competing processes dominates is analyzed in detail. It was found that while both processes play a significant and dominant role at different times, ultimately, transmission through this impenetrable plasma layer can be significantly increased with microparticle injection. (C) 2015 AIP Publishing LLC.
C1 [Gillman, Eric D.; Amatucci, W. E.] Naval Res Lab, Washington, DC 20375 USA.
[Williams, Jeremiah] Wittenberg Univ, Springfield, OH 45501 USA.
[Compton, C. S.] Sotera Def Solut, Herndon, VA 20171 USA.
RP Gillman, ED (reprint author), Naval Res Lab, Washington, DC 20375 USA.
EM eric.gillman@nrl.navy.mil
FU U.S. Naval Research Laboratory; National Science Foundation
[PHY-0953595]; National Research Council at the U.S. Naval Research
Laboratory
FX This work was supported by U.S. Naval Research Laboratory base funds.
This work was also supported by the National Science Foundation (Grant
No. PHY-0953595). This research was performed while the author (Eric D.
Gillman) held a National Research Council Research Associateship Award
at the U.S. Naval Research Laboratory.
NR 19
TC 4
Z9 4
U1 0
U2 2
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 1070-664X
EI 1089-7674
J9 PHYS PLASMAS
JI Phys. Plasmas
PD APR
PY 2015
VL 22
IS 4
AR 043706
DI 10.1063/1.4919028
PG 12
WC Physics, Fluids & Plasmas
SC Physics
GA CH2DZ
UT WOS:000353837200108
ER
PT J
AU Velikovich, AL
Giuliani, JL
Zalesak, ST
AF Velikovich, A. L.
Giuliani, J. L.
Zalesak, S. T.
TI Magnetic flux and heat losses by diffusive, advective, and Nernst
effects in magnetized liner inertial fusion-like plasma
SO PHYSICS OF PLASMAS
LA English
DT Article
ID FIELD PENETRATION; HOT PLASMA; GAS-INSULATION; TARGET FUSION; ELECTRON;
GENERATION
AB The magnetized liner inertial fusion (MagLIF) approach to inertial confinement fusion [Slutz et al., Phys. Plasmas 17, 056303 (2010); Cuneo et al., IEEE Trans. Plasma Sci. 40, 3222 (2012)] involves subsonic/isobaric compression and heating of a deuterium-tritium plasma with frozen-in magnetic flux by a heavy cylindrical liner. The losses of heat and magnetic flux from the plasma to the liner are thereby determined by plasma advection and gradient-driven transport processes, such as thermal conductivity, magnetic field diffusion, and thermomagnetic effects. Theoretical analysis based on obtaining exact self-similar solutions of the classical collisional Braginskii's plasma transport equations in one dimension demonstrates that the heat loss from the hot compressed magnetized plasma to the cold liner is dominated by transverse heat conduction and advection, and the corresponding loss of magnetic flux is dominated by advection and the Nernst effect. For a large electron Hall parameter (omega(e)tau(e) >> 1), the effective diffusion coefficients determining the losses of heat and magnetic flux to the liner wall are both shown to decrease with omega(e)tau(e) as does the Bohm diffusion coefficient cT/(16eB), which is commonly associated with low collisionality and two-dimensional transport. We demonstrate how this family of exact solutions can be used for verification of codes that model the MagLIF plasma dynamics. (C) 2015 AIP Publishing LLC.
C1 [Velikovich, A. L.; Giuliani, J. L.] Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
[Zalesak, S. T.] Berkeley Res Associates Inc, Beltsville, MD 20705 USA.
RP Velikovich, AL (reprint author), Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
OI Velikovich, Alexander/0000-0002-2782-6246
FU National Nuclear Security Administration of DOE
FX The authors are grateful to S. A. Slutz, R. A. Vesey, C. A. Jennings, D.
B. Sinars, M. E. Cuneo, R. Betti, T. A. Gardiner, and D. D. Ryutov for
stimulating discussions. This work was supported by the National Nuclear
Security Administration of DOE.
NR 50
TC 7
Z9 7
U1 2
U2 7
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 1070-664X
EI 1089-7674
J9 PHYS PLASMAS
JI Phys. Plasmas
PD APR
PY 2015
VL 22
IS 4
AR 042702
DI 10.1063/1.4916777
PG 17
WC Physics, Fluids & Plasmas
SC Physics
GA CH2DZ
UT WOS:000353837200051
ER
PT J
AU Johnson, WB
Rosenstein, JE
Buhrke, RA
Haldeman, DC
AF Johnson, W. Brad
Rosenstein, Judith E.
Buhrke, Robin A.
Haldeman, Douglas C.
TI After "Don't Ask Don't Tell": Competent Care of Lesbian, Gay and
Bisexual Military Personnel During the DoD Policy Transition
SO PROFESSIONAL PSYCHOLOGY-RESEARCH AND PRACTICE
LA English
DT Article
DE ethics; competence; LGB; military
ID SEXUAL-ORIENTATION; MENTAL-HEALTH; PUBLIC-POLICY; HETEROSEXISM;
PERSPECTIVE; HARASSMENT; SERVICE; ISSUES; WORK; PERCEPTIONS
AB Repeal of the "Don't Ask, Don't Tell" policy that excluded openly lesbian, gay, and bisexual (LGB) persons from military service (Don't Ask, Don't Tell Repeal Act of 2010, Pub. L. No. 111-321, 124 Stat. 3515, 2010) was a defining moment for the nation and cause for hope that open service might become a reality for thousands of LGB service members. But the near-term reality of the DADT repeal may include heightened stressors and risks for LGB military personnel, including continuation of sexual stigma and prejudice and resistance to the policy change, a potential spike in sexual-orientation-based harassment and victimization, difficult decisions about remaining concealed or disclosing sexual orientation, and the potential that military mental health providers will have little recent experience in service delivery to openly LGB clients. In this article, we consider the effects of the DADT policy and the policy repeal on LGB military members. We conclude with several recommendations for psychologists who serve active duty LGB clients and who consult to military commanders and policymakers.
C1 [Johnson, W. Brad] US Naval Acad, Dept Leadership Eth & Law, Annapolis, MD 21402 USA.
[Rosenstein, Judith E.] US Naval Acad, Sexual Assault Prevent & Response Off, Annapolis, MD 21402 USA.
Duke Univ, Counseling Serv, Res & Technol, Durham, NC 27706 USA.
[Buhrke, Robin A.] Duke Univ, Psychol Serv, Res & Technol, Durham, NC 27706 USA.
[Buhrke, Robin A.] Duke Univ, Psychiat & Behav Studies, Durham, NC 27706 USA.
[Haldeman, Douglas C.] Univ Washington, Psychol, Seattle, WA 98195 USA.
RP Johnson, WB (reprint author), US Naval Acad, Luce Hall,Stop 7B, Annapolis, MD 21402 USA.
EM johnsonb@usna.edu
NR 56
TC 3
Z9 3
U1 0
U2 5
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 APR
PY 2015
VL 46
IS 2
BP 107
EP 115
DI 10.1037/a0033051
PG 9
WC Psychology, Multidisciplinary
SC Psychology
GA CH3DL
UT WOS:000353906700006
ER
PT J
AU Lin, CH
Chen, J
AF Lin, Chia-Hsien
Chen, James
TI A Comparison of Coronal Mass Ejection Models with Observations for Two
Large CMEs Detected During the Whole Heliosphere Interval
SO TERRESTRIAL ATMOSPHERIC AND OCEANIC SCIENCES
LA English
DT Article
DE Solar corona; Coronal mass ejections; CME model; Solar flares; Solar
magnetic fields
ID MAGNETIC-FIELD EVOLUTION; SOLAR-FLARES; ACCELERATION; CONNECTION;
MECHANISMS; ERUPTIONS; WHI
AB Two major coronal mass ejections (CMEs) observed during the Whole Heliosphere Interval (WHI) are compared with the catastrophe (CA) and eruptive flux rope (EF) models. The objective is to test two distinct mechanisms for CMEs by modeling these well-observed CMEs and comparing predictions of the theories and observed data. The two CMEs selected for this study occurred on 25 March and 5 April 2008, respectively. For the 25 March event, an M 1.7 class flare, a filament eruption, and hard X-ray (HXR) and soft X-ray (SXR) emissions were observed during the CME onset. The observed CME kinematics and SXR light curve of this event are found to be more consistent with the EF model than with the CA model. For the 5 April event, the SXR light curve shows multiple enhancements, some of which temporally coincide with successive side loop brightening and multiple foot points at the source region after the eruption. The physical connection between the side-loop multiple brightenings and the eruption cannot be determined from the data. Both models produced observationally consistent kinematics profiles, and the EF model correctly predicted the first emission enhancement. Neither model includes multiple brightenings in the formulation.
C1 [Lin, Chia-Hsien] Natl Cent Univ, Grad Inst Space Sci, Taoyuan, Taiwan.
[Chen, James] Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
RP Lin, CH (reprint author), Natl Cent Univ, Grad Inst Space Sci, Taoyuan, Taiwan.
EM chlin@jupiter.ss.ncu.edu.tw
FU NSC of ROC [NSC99-2112-M-008-019-MY3, NSC102-2112-M-008-018]; MOE grant
"Aim for the Top University"; Naval Research Laboratory Base Program
FX This work is funded by the NSC of ROC under grant
NSC99-2112-M-008-019-MY3, NSC102-2112-M-008-018, and the MOE grant "Aim
for the Top University" to the National Central University. JC is
supported by the Naval Research Laboratory Base Program. The SECCHI data
are produced by an international consortium of the NRL, LMSAL, and NASA
GSFC (USA), RAL and Univ. Bham (UK), MPS (Germany), CSL (Belgium), IOTA
and IAS (France). CHL wishes to thank Jun Lin, Angelos Vourlidas and
Lou-Chuang Lee for helpful inputs and suggestion.
NR 27
TC 0
Z9 0
U1 0
U2 1
PU CHINESE GEOSCIENCE UNION
PI TAIPEI
PA PO BOX 23-59, TAIPEI 10764, TAIWAN
SN 1017-0839
J9 TERR ATMOS OCEAN SCI
JI Terr. Atmos. Ocean. Sci.
PD APR
PY 2015
VL 26
IS 2
BP 121
EP 134
DI 10.3319/TAO.2014.10.15.01(AA)
PN 1
PG 14
WC Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences;
Oceanography
SC Geology; Meteorology & Atmospheric Sciences; Oceanography
GA CH1AU
UT WOS:000353754300005
ER
PT J
AU Marelli, M
Mignani, RP
De Luca, A
Parkinson, PMS
Salvetti, D
Den Hartog, PR
Wolff, MT
AF Marelli, M.
Mignani, R. P.
De Luca, A.
Parkinson, P. M. Saz
Salvetti, D.
Den Hartog, P. R.
Wolff, M. T.
TI RADIO-QUIET AND RADIO-LOUD PULSARS: SIMILAR IN GAMMA-RAYS BUT DIFFERENT
IN X-RAYS
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE gamma rays: stars; pulsars: general; stars: neutron; X-rays: stars
ID LARGE-AREA TELESCOPE; OUTER MAGNETOSPHERE; RADIATION; EMISSION;
PULSATIONS; CATALOG; FIELD; GAPS
AB We present new Chandra and XMM-Newton observations of a sample of eight radio-quiet (RQ) gamma-ray pulsars detected by the Fermi Large Area Telescope. For all eight pulsars we identify the X-ray counterpart, based on the X-ray source localization and the best position obtained from gamma-ray pulsar timing. For PSR J2030+4415 we found evidence for a similar to 10 ''-long pulsar wind nebula. Our new results consolidate the work from Marelli et al. and confirm that, on average, the gamma-ray-to-X-ray flux ratios (F-gamma/F-X) of RQ pulsars are higher than for the radio-loud (RL) ones. Furthermore, while the F-gamma/F-X distribution features a single peak for the RQ pulsars, the distribution is more dispersed for the RL ones, possibly showing two peaks. We discuss possible implications of these different distributions based on current models for pulsar X-ray emission.
C1 [Marelli, M.; Mignani, R. P.; De Luca, A.; Salvetti, D.] INAF Ist Astrofis Spaziale & Fis Cosm Milano, I-20133 Milan, Italy.
[Mignani, R. P.] Univ Zielona Gora, Kepler Inst Astron, PL-65265 Zielona Gora, Poland.
[De Luca, A.] Ist Nazl Fis Nucl, Sez Pavia, I-27100 Pavia, Italy.
[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 Hong Kong, Dept Phys, Hong Kong, Hong Kong, Peoples R China.
[Den Hartog, P. R.] Stanford Univ, HEPL KIPAC, Stanford, CA 94305 USA.
[Wolff, M. T.] Naval Res Lab, Div Space Sci, Washington, DC 20375 USA.
RP Marelli, M (reprint author), INAF Ist Astrofis Spaziale & Fis Cosm Milano, Via E Bassini 15, I-20133 Milan, Italy.
EM marelli@iasf-milano.inaf.it
OI De Luca, Andrea/0000-0001-6739-687X; Marelli,
Martino/0000-0002-8017-0338
FU European Commission [267251]; ASI-INAF [I/037/12/0, art.22 L.240/2010];
National Aeronautics and Space Administration [GO2-13093X, GO3-14075X,
NAS8-03060]
FX We thank Andrea Belfiore ("Mario") for the useful discussions on the
gamma-ray timing positions of LAT pulsars. The research leading to these
results has received funding from the European Commission Seventh
Framework Programme (FP7/2007-2013) under grant agreement n. 267251.
This work was supported by the ASI-INAF contract I/037/12/0, art.22
L.240/2010 for the project "Calibrazione ed Analisi del satallite
NuSTAR." Support for this work was provided by the National Aeronautics
and Space Administration through Chandra Award Numbers GO2-13093X and
GO3-14075X issued by the Chandra X-ray Observatory Center, which is
operated by the Smithsonian Astrophysical Observatory for and on behalf
of the National Aeronautics and Space Administration under contract
NAS8-03060.
NR 44
TC 9
Z9 9
U1 0
U2 1
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 APR 1
PY 2015
VL 802
IS 2
AR 78
DI 10.1088/0004-637X/802/2/78
PG 8
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA CG1DZ
UT WOS:000353014500006
ER
PT J
AU Mashian, N
Sturm, E
Sternberg, A
Janssen, A
Hailey-Dunsheath, S
Fischer, J
Contursi, A
Gonzalez-Alfonso, E
Gracia-Carpio, J
Poglitsch, A
Veilleux, S
Davies, R
Genzel, R
Lutz, D
Tacconi, L
Verma, A
Weiss, A
Polisensky, E
Nikola, T
AF Mashian, N.
Sturm, E.
Sternberg, A.
Janssen, A.
Hailey-Dunsheath, S.
Fischer, J.
Contursi, A.
Gonzalez-Alfonso, E.
Gracia-Carpio, J.
Poglitsch, A.
Veilleux, S.
Davies, R.
Genzel, R.
Lutz, D.
Tacconi, L.
Verma, A.
Weiss, A.
Polisensky, E.
Nikola, T.
TI HIGH-J CO SLEDs IN NEARBY INFRARED BRIGHT GALAXIES OBSERVED BY
HERSCHEL/PACS
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE galaxies: active; galaxies: ISM; galaxies: starburst
ID MOLECULAR INTERSTELLAR-MEDIUM; LUMINOSITY IRAS GALAXIES; HIGH-REDSHIFT
GALAXIES; GALACTIC GAMMA-RAYS; SEYFERT 2 GALAXY; NGC 1068;
STAR-FORMATION; ARP 220; RADIAL-DISTRIBUTION; SPIRE SPECTROSCOPY
AB We report the detection of far-infrared (FIR) CO rotational emission from nearby active galactic nuclei (AGNs) and starburst galaxies, as well as several merging systems and Ultra-Luminous Infrared Galaxies (ULIRGs). Using the Herschel Photodetector Array Camera and Spectrometer (PACS), we have detected transitions in the J(upp) = 14-30 range. The PACS CO data obtained here provide the first reference of well-sampled FIR extragalactic CO spectral line energy distributions (SLEDs) for this range. We find a large range in the overall SLED shape, even among galaxies of similar type, demonstrating the uncertainties in relying solely on high-J CO diagnostics to characterize the excitation source of a galaxy. Combining our data with low-J line intensities taken from the literature, we present a CO ratio-ratio diagram and discuss its value in distinguishing excitation sources and physical properties of the molecular gas. The position of a galaxy on such a diagram is less a signature of its excitation mechanism, than an indicator of the presence of warm, dense molecular gas. We then quantitatively analyze the CO emission from a subset of the detected sources with single-component and two-component large velocity gradient (LVG) radiative transfer models to fit the CO SLEDs. From these fits we derive the molecular gas mass and the corresponding CO-to-H-2 conversion factor, alpha(CO), for each respective source. For the ULIRGs we find a values in the canonical range 0.4-5M(circle dot) (K km s(-1) pc(2))(-1), while for the other objects, alpha varies between 0.2 and 14. Finally, we compare our best-fit LVG model results with previous studies of the same galaxies and comment on any differences.
C1 [Mashian, N.] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA.
[Sturm, E.; Janssen, A.; Contursi, A.; Gracia-Carpio, J.; Poglitsch, A.; Davies, R.; Genzel, R.; Lutz, D.; Tacconi, L.] Max Planck Inst Extraterr Phys MPE, D-85748 Garching, Germany.
[Mashian, N.; Sternberg, A.] Tel Aviv Univ, Raymond & Beverly Sackler Sch Phys & Astron, IL-69978 Tel Aviv, Israel.
[Hailey-Dunsheath, S.] CALTECH, Pasadena, CA 91125 USA.
[Fischer, J.; Polisensky, E.] Naval Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
[Gonzalez-Alfonso, E.] Univ Alcala de Henares, Madrid, Spain.
[Veilleux, S.] Univ Maryland, Dept Astron, College Pk, MD 20742 USA.
[Verma, A.] Univ Oxford, Subdept Astrophys, Oxford OX1 3RH, England.
[Weiss, A.] Max Planck Inst Radioastron MPIfR, D-53121 Bonn, Germany.
[Nikola, T.] Cornell Univ, Ithaca, NY 14853 USA.
RP Mashian, N (reprint author), Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA.
EM nmashian@physics.harvard.edu
OI Poglitsch, Albrecht/0000-0002-6414-9408; Fischer,
Jacqueline/0000-0001-6697-7808
FU Raymond and Beverly Sackler Tel Aviv University-Harvard Astronomy
Program; DFG [STE1869/1-1.GE625/15-1]; US ONR; NHSC; Leverhulme Trust;
NASA [1427277, 1454738]; BMVIT (Austria); ESA-PRODEX (Belgium); CEA/CNES
(France); DLR (Germany); ASI/INAF (Italy); CICYT/MCYT (Spain); National
Science Foundation [DGE1144152]
FX N.M. is supported by the Raymond and Beverly Sackler Tel Aviv
University-Harvard Astronomy Program. We thank the DFG for support via
German-Israeli Project Cooperation grant STE1869/1-1.GE625/15-1. Basic
research in IR astronomy at NRL is funded by the US ONR; J.F. also
acknowledges support from the NHSC. E.G-A is a Research Associate at the
Harvard-Smithsonian Center for Astrophysics. A.V. thanks the Leverhulme
Trust for a Research Fellowship. S.V. also acknowledges partial support
from NASA through Herschel grants 1427277 and 1454738. PACS has been
developed by a consortium of institutes led by MPE (Germany) and
including UVIE (Austria); KU Leuven, CSL, IMEC (Belgium); CEA, LAM
(France); MPIA (Germany); INAF-IFSI/OAA/OAP/OAT, LENS, SISSA (Italy);
IAC (Spain). This development has been supported by the funding agencies
BMVIT (Austria), ESA-PRODEX (Belgium), CEA/CNES (France), DLR (Germany),
ASI/INAF (Italy), and CICYT/MCYT (Spain). This material is based upon
work supported by the National Science Foundation Graduate Research
Fellowship under grant No. DGE1144152. Any opinion, findings, and
conclusions or recommendations expressed in this material are those of
the authors and do not necessarily reflect the views of the National
Science Foundation.
NR 73
TC 7
Z9 7
U1 0
U2 1
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 APR 1
PY 2015
VL 802
IS 2
AR 81
DI 10.1088/0004-637X/802/2/81
PG 17
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA CG1DZ
UT WOS:000353014500009
ER
PT J
AU Tahara, M
Kataoka, J
Takeuchi, Y
Totani, T
Sofue, Y
Hiraga, JS
Tsunemi, H
Inoue, Y
Kimura, M
Cheung, CC
Nakashima, S
AF Tahara, M.
Kataoka, J.
Takeuchi, Y.
Totani, T.
Sofue, Y.
Hiraga, J. S.
Tsunemi, H.
Inoue, Y.
Kimura, M.
Cheung, C. C.
Nakashima, S.
TI SUZAKU X-RAY OBSERVATIONS OF THE FERMI BUBBLES: NORTHERNMOST CAP AND
SOUTHEAST CLAW DISCOVERED WITH MAXI-SSC
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE acceleration of particles; cosmic rays; Galaxy: halo; X-rays: ISM
ID RADIO GALAXY; GALACTIC HALO; XMM-NEWTON; HOT GAS; ORBIT PERFORMANCE;
EMISSION; TELESCOPE; SPECTRUM; MISSION; WIND
AB We report on Suzaku observations of large-scale X-ray structures possibly related to the Fermi Bubbles obtained in 2013 with a total duration of similar or equal to 80 ks. The observed regions were (1) the northern cap (N-cap; l similar to 0 degrees, 45 degrees3 sigma) of the DU target through a minimum of 113 g.cm(-2) of steel, dropping to 85 g.cm(-2) when using a mixed x-ray/photoneutron source. The He-3 proportional counters demonstrate detection (>3 sigma) of the DU target through the maximum 149.7 g.cm(-2) steel shielding deployed for both photon and mixed x-ray/photoneutron sources.
C1 [Clemett, Ceri D.; Martin, Philip N.; Hill, Cassie; Threadgold, James R.; O'Malley, John] Atom Weap Estab, Nucl Secur Sci Grp, Reading RG7 4PR, Berks, England.
[Maddock, Robert C.; Campbell, Ben] Atom Weap Estab, Radiat Sci Grp, Reading RG7 4PR, Berks, England.
[Zier, Jacob C.; Jackson, Stuart L.; Commisso, Robert J.; Schumer, Joseph W.] US Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
[Woolf, Richard S.; Phlips, Bernard F.; Hutcheson, Anthony L.; Wulf, Eric A.] US Naval Res Lab, Div Space Sci, Washington, DC 20375 USA.
RP Clemett, CD (reprint author), Atom Weap Estab, Nucl Secur Sci Grp, Reading RG7 4PR, Berks, England.
EM ceri.clemett@awe.co.uk
OI Woolf, Richard/0000-0003-4859-1711
FU AWE; U.K Government through the Defence Threat Reduction Agency
FX This work at the Naval Research Laboratory was supported by AWE and
funded by the U.K Government through the Defence Threat Reduction
Agency.
NR 20
TC 2
Z9 2
U1 1
U2 7
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 APR
PY 2015
VL 62
IS 2
BP 494
EP 503
DI 10.1109/TNS.2015.2403777
PG 10
WC Engineering, Electrical & Electronic; Nuclear Science & Technology
SC Engineering; Nuclear Science & Technology
GA CF9LZ
UT WOS:000352887500011
ER
PT J
AU Shiffler, D
Schumer, J
Jiang, CQ
AF Shiffler, Don
Schumer, Joe
Jiang, Chungqi
TI Special Issue on Plenary and Invited Papers from ICOPS-BEAMS 2014
SO IEEE TRANSACTIONS ON PLASMA SCIENCE
LA English
DT Editorial Material
C1 [Shiffler, Don] US Air Force, Res Lab, Directed Energy Directorate, Kirtland AFB, NM 87117 USA.
[Schumer, Joe] Naval Res Lab, Washington, DC 20375 USA.
[Jiang, Chungqi] Old Dominion Univ, Frank Reidy Ctr Bioelect, Norfolk, VA 23529 USA.
RP Shiffler, D (reprint author), US Air Force, Res Lab, Directed Energy Directorate, Kirtland AFB, NM 87117 USA.
EM don.shiffler@ieee.org; joseph.schumer@nrl.navy.mil; cjiang@odu.edu
NR 0
TC 0
Z9 0
U1 0
U2 2
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0093-3813
EI 1939-9375
J9 IEEE T PLASMA SCI
JI IEEE Trans. Plasma Sci.
PD APR
PY 2015
VL 43
IS 4
SI SI
BP 913
EP 913
DI 10.1109/TPS.2015.2419411
PN 1
PG 1
WC Physics, Fluids & Plasmas
SC Physics
GA CG2OI
UT WOS:000353113700001
ER
PT J
AU Chu, PC
Tokmakian, RT
Fan, CW
Sun, LC
AF Chu, Peter C.
Tokmakian, Robin T.
Fan, Chenwu
Sun, L. Charles
TI Optimal Spectral Decomposition (OSD) for Ocean Data Assimilation
SO JOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY
LA English
DT Article
ID MINIMAL ADJUSTMENT SCHEME; HYDROGRAPHIC PROFILES; FLOW DECOMPOSITION;
VARIABILITY; STABILIZATION; SPARSE; SYSTEM; MODEL
AB Optimal spectral decomposition (OSD) is applied to ocean data assimilation with variable (temperature, salinity, or velocity) anomalies (relative to background or modeled values) decomposed into generalized Fourier series, such that any anomaly is represented by a linear combination of products of basis functions and corresponding spectral coefficients. It has three steps: 1) determination of the basis functions, 2) optimal mode truncation, and 3) update of the spectral coefficients from innovation (observational increment). The basis functions, depending only on the topography of the ocean basin, are the eigenvectors of the Laplacian operator with the same lateral boundary conditions as the assimilated variable anomalies. The Vapnik-Chervonkis dimension is used to determine the optimal mode truncation. After that, the model field updates due to innovation through solving a set of a linear algebraic equations of the spectral coefficients. The strength and weakness of the OSD method are demonstrated through a twin experiment using the Parallel Ocean Program (POP) model.
C1 [Chu, Peter C.; Tokmakian, Robin T.; Fan, Chenwu] Naval Postgrad Sch, Dept Oceanog, Naval Ocean Anal & Predict Lab, Monterey, CA 93943 USA.
[Sun, L. Charles] Natl Oceanog Data Ctr, Silver Spring, MD USA.
RP Chu, PC (reprint author), Naval Postgrad Sch, Dept Oceanog, 833 Dyer Rd,RM SP-328, Monterey, CA 93943 USA.
EM pcchu@nps.edu
FU Office of Naval Research; Naval Oceanographic Office; Naval Postgraduate
School
FX The Office of Naval Research, the Naval Oceanographic Office, and the
Naval Postgraduate School supported this study.
NR 24
TC 1
Z9 1
U1 0
U2 2
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 APR
PY 2015
VL 32
IS 4
BP 828
EP 841
DI 10.1175/JTECH-D-14-00079.1
PG 14
WC Engineering, Ocean; Meteorology & Atmospheric Sciences
SC Engineering; Meteorology & Atmospheric Sciences
GA CG0OT
UT WOS:000352966600014
ER
PT J
AU Brouwer, RL
de Schipper, MA
Rynne, PF
Graham, FJ
Reniers, AJHM
MacMahan, JH
AF Brouwer, Ronald L.
de Schipper, Matthieu A.
Rynne, Patrick F.
Graham, Fiona J.
Reniers, Ad J. H. M.
MacMahan, Jamie H.
TI Surfzone Monitoring Using Rotary Wing Unmanned Aerial Vehicles
SO JOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY
LA English
DT Article
ID NEARSHORE BATHYMETRY; ZONE; CURRENTS; SYSTEMS; IMAGERY; LENSES; SHORE;
MODEL
AB This study investigates the potential of rotary wing unmanned aerial vehicles (UAVs) to monitor the surfzone. This paper shows that these UAVs are extremely flexible surveying platforms that can gather near-continuous moderate spatial resolution and high temporal resolution imagery from a fixed position high above a study site. The rotary wing UAVs used in this study can fly for similar to 12 min with a mean loiter radius of 1-3.5 m and a mean loiter error of 0.75-4.5 m. These numbers depend on the environmental conditions, flying style, battery type, and vehicle type. The images obtained from the UAVs, and in combination with surveyed ground control points (GCPs), can be georectified to a pixel resolution between 0.01 and 1 m, and a reprojection error-that is, the difference between the surveyed GPS location of a GCP and the location of the GCP obtained from the georectified image-of O(1 m). The flexibility of rotary wing UAVs provides moderate spatial resolution and high temporal resolution imagery, which are highly suitable to quickly obtain surfzone and beach characteristics in response to storms or for day-to-day beach safety information, as well as scientific pursuits of surfzone kinematics on different spatial and temporal scales, and dispersion and advection estimates of pollutants.
C1 [Brouwer, Ronald L.; de Schipper, Matthieu A.] Delft Univ Technol, Dept Hydraul Engn, Delft, Netherlands.
[Rynne, Patrick F.; Graham, Fiona J.; Reniers, Ad J. H. M.] Univ Miami, Appl Marine Phys, Miami, FL USA.
[MacMahan, Jamie H.] Naval Postgrad Sch, Dept Oceanog, Monterey, CA USA.
RP Brouwer, RL (reprint author), Flanders Hydraul Res, Berchemlei 115, B-2140 Antwerp, Belgium.
EM ronald.brouwer@mow.vlaanderen.be
OI Brouwer, Ronald/0000-0001-6154-3410
FU ERC [291206-NEMO]; BP's Gulf of Mexico Research Initiative
FX RB and MS are supported by the ERC-Advanced Grant 291206-NEMO.
Furthermore, this research was funded by a grant from BP's Gulf of
Mexico Research Initiative. The authors thank two anonymous reviewers
for their constructive comments.
NR 28
TC 1
Z9 1
U1 0
U2 17
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 APR
PY 2015
VL 32
IS 4
BP 855
EP 863
DI 10.1175/JTECH-D-14-00122.1
PG 9
WC Engineering, Ocean; Meteorology & Atmospheric Sciences
SC Engineering; Meteorology & Atmospheric Sciences
GA CG0OT
UT WOS:000352966600016
ER
PT J
AU Prak, DJL
Jones, MH
Cowart, JS
Trulove, PC
AF Prak, Dianne J. Luning
Jones, M. Hope
Cowart, Jim S.
Trulove, Paul C.
TI Density, Viscosity, Speed of Sound, Bulk Modulus, Surface Tension, and
Flash Point of Binary Mixtures of 2,2,4,6,6-Pentamethylheptane and
2,2,4,4,6,8,8-Heptamethylnonane at (293.15 to 373.15) K and 0.1 MPa and
Comparisons with Alcohol-to-Jet Fuel
SO JOURNAL OF CHEMICAL AND ENGINEERING DATA
LA English
DT Article
ID HYDROTREATED RENEWABLE DIESEL; N-HEXADECANE; COMBUSTION
AB In this work, the physical properties of binary mixtures of 2,2,4,6,6-pentamethylheptane and 2,2,4,4,6,8,8-heptamethylnonane were measured and compared with those of alcohol-to-jet fuel. Density and viscosity were measured at temperatures ranging from (293.15 to 373.15) K, and speed of sound was measured at temperatures ranging from (293.15 to 343.15) K. At 293.15 K, pure component values for 2,2,4,4,6,8,8-heptamethylnonane of 784.48 kg.m(-3), 3.71 mPa.s, and 1285.8 m.s(-1) for density, viscosity, and speed of sound, respectively, agree with literature values. Similarly for 2,2,4,6,6-pentamethylheptane, the values of 745.21 kg.m(-3), 1.31 mPa.s, and 1203.7 m.s(-1) for density, viscosity, and speed of sound, respectively agree with literature values. Density and mole fraction data were fit to a second-order polynomial at each temperature. Values for bulk modulus ranged from (732 to 1297) MPa over (293.15 to 343.15) K. Viscosity mole fraction data were fit using the three-body McAllister model, whereas the viscosity deviations were fit to a Redlich-Kister type equation. For the mixtures, an increase in mole fraction of 2,2,4,4,6,8,8-heptamethylnonane resulted in an increase in density, viscosity, speed of sound, bulk modulus, surface tension, and flash point. Increases in temperature decreased density, viscosity, speed of sound, and bulk modulus. At room temperature, the surface tension values ranged from (21.4 to 24.0) mN.m(-1), and the flash points ranged from (318.15 to 367.15) K. Comparison of mixture properties with those of an alcohol-to-jet (ATJ) fuel showed that mixtures containing mass fractions of 2,2,4,4,6,8,8-heptamethylnonane around 0.3001 had properties that best matched the ATJ fuel.
C1 [Prak, Dianne J. Luning; Jones, M. Hope; Trulove, Paul C.] US Naval Acad, Dept Chem, Annapolis, MD 21402 USA.
[Cowart, Jim S.] US Naval Acad, Dept Mech Engn, 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
FU Office of Naval Research
FX This work was funded by the Office of Naval Research.
NR 26
TC 4
Z9 4
U1 3
U2 20
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0021-9568
J9 J CHEM ENG DATA
JI J. Chem. Eng. Data
PD APR
PY 2015
VL 60
IS 4
BP 1157
EP 1165
DI 10.1021/je501141e
PG 9
WC Thermodynamics; Chemistry, Multidisciplinary; Engineering, Chemical
SC Thermodynamics; Chemistry; Engineering
GA CG2FY
UT WOS:000353091500024
ER
PT J
AU Zhang, W
Fu, B
Peng, MS
Li, T
AF Zhang, Wei
Fu, Bing
Peng, Melinda S.
Li, Tim
TI Discriminating Developing versus Nondeveloping Tropical Disturbances in
the Western North Pacific through Decision Tree Analysis
SO WEATHER AND FORECASTING
LA English
DT Article
DE Forecast verification; skill; Forecasting techniques; Short-range
prediction; Statistical forecasting
ID PREDICTION SCHEME SHIPS; SEA-SURFACE TEMPERATURE; IMBALANCED DATA SETS;
CYCLONE GENESIS; NUMERICAL-SIMULATION; POTENTIAL INDEX; ATLANTIC BASIN;
CYCLOGENESIS; INTENSIFICATION; CHINA
AB This study investigates the classification of developing and nondeveloping tropical disturbances in the western North Pacific (WNP) through the C4.5 algorithm. A decision tree is built based on this algorithm and can be used as a tool to predict future tropical cyclone (TC) genesis events. The results show that the maximum 800-hPa relative vorticity, SST, precipitation rate, divergence averaged between 1000- and 500-hPa levels, and 300-hPa air temperature anomaly are the five most important variables for separating the developing and nondeveloping tropical disturbances. This algorithm also unravels the thresholds of the five variables (i.e., 4.2 x 10(-5) s(-1) for maximum 800-hPa relative vorticity, 28.2 degrees C for SST, 0.1 mm h(-1) for precipitation rate, -0.7 x 10(-6) s(-1) for vertically averaged convergence, and 0.5 degrees C for 300-hPa air temperature anomaly). Six rules are derived from the decision tree. The classification accuracy of this decision tree is 81.7% for the 2004-10 cases. The hindcast accuracy for the 2011-13 dataset is 84.6%.
C1 [Zhang, Wei] NIAMS, Minist Educ, Key Lab Meteorol Disaster, Nanjing, Jiangsu, Peoples R China.
[Zhang, Wei] NIAMS, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Nanjing, Jiangsu, Peoples R China.
[Zhang, Wei] NIAMS, Climate Dynam Res Ctr, Nanjing, Jiangsu, Peoples R China.
[Zhang, Wei] NIAMS, Earth Syst Modeling Ctr, Nanjing, Jiangsu, Peoples R China.
[Zhang, Wei] Nanjing Univ Informat Sci & Technol, Nanjing, Jiangsu, Peoples R China.
[Fu, Bing; Li, Tim] Univ Hawaii Manoa, Int Pacific Res Ctr, Honolulu, HI 96822 USA.
[Peng, Melinda S.] Naval Res Lab, Marine Meteorol Div, Monterey, CA USA.
[Li, Tim] Univ Hawaii Manoa, Dept Atmospher Sci, Honolulu, HI 96822 USA.
RP Fu, B (reprint author), Int Pacific Res Ctr, 1680 East West Rd,POST 408, Honolulu, HI 96822 USA.
EM bingf@hawaii.edu
RI Zhang, Wei /L-5743-2015;
OI Zhang, Wei /0000-0001-9447-0414; Zhang, Wei/0000-0001-8134-6908
FU Ministry of Science and Technology of China [2013CB430102]; National
Natural Science Foundation of China [41430427, 41201045]; Key Laboratory
of Geographic Information Science (MOE), East China Normal University
[KLGIS2012A04]; Jiangsu Natural Science Funds for Distinguished Young
Scholar [BK20140047]; Startup Foundation for Introducing Talent of
NUIST; Priority Academic Program Development of Jiangsu Higher Education
Institutions
FX We appreciate the comments and suggestions from anonymous reviewers.
This research was jointly supported by the National 973 Fundamental
Research Program of the Ministry of Science and Technology of China
(2013CB430102), National Natural Science Foundation of China (Grant No.:
41430427; 41201045), Open Fund of Key Laboratory of Geographic
Information Science (MOE), East China Normal University (Grant No.
KLGIS2012A04), Jiangsu Natural Science Funds for Distinguished Young
Scholar (BK20140047), the Startup Foundation for Introducing Talent of
NUIST, and the Priority Academic Program Development of Jiangsu Higher
Education Institutions.
NR 57
TC 5
Z9 5
U1 0
U2 2
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 APR
PY 2015
VL 30
IS 2
BP 446
EP 454
DI 10.1175/WAF-D-14-00023.1
PG 9
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA CG2KN
UT WOS:000353103600012
ER
PT J
AU Watnik, AT
Lebow, PS
AF Watnik, Abbie T.
Lebow, Paul S.
TI Weak-signal iterative holography
SO APPLIED OPTICS
LA English
DT Article
ID PHASE-CONJUGATION; TIME-REVERSAL; MEDIA
AB An iterative holographic table-top experiment is presented, where a recorded hologram is used to reilluminate the initial target. With this beam shaping setup, more light is directed to the target for each iteration until a convergence limit is met. We experimentally examine convergence properties of this iterative hologram reconstruction approach for weak object signals and compare with theory.
C1 [Watnik, Abbie T.; Lebow, Paul S.] US Naval Res Lab, Washington, DC 20375 USA.
RP Watnik, AT (reprint author), US Naval Res Lab, Code 5662,4555 Overlook Ave SW, Washington, DC 20375 USA.
EM code5662@nrl.navy.mil
NR 10
TC 0
Z9 0
U1 2
U2 2
PU OPTICAL SOC AMER
PI WASHINGTON
PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA
SN 1559-128X
EI 2155-3165
J9 APPL OPTICS
JI Appl. Optics
PD APR 1
PY 2015
VL 54
IS 10
BP 2615
EP 2619
DI 10.1364/AO.54.002615
PG 5
WC Optics
SC Optics
GA CE9GP
UT WOS:000352152400009
PM 25967166
ER
PT J
AU Gomez-Garcia, R
Guyette, AC
AF Gomez-Garcia, Roberto
Guyette, Andrew C.
TI Reconfigurable Multi-Band Microwave Filters
SO IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
LA English
DT Article
DE Bandpass filters (BPFs); coupled-resonator filters; microstrip filters;
microwave filters; multi-band filters; planar filters; reconfigurable
filters; transmission zero (TZ); tunable circuits and devices;
ultra-wideband (UWB) technology
ID BANDPASS-FILTERS; PLANAR FILTERS; DUAL-MODE; RF MEMS; BANDWIDTH;
RESONATOR; FREQUENCY; LINES
AB An original and simple approach to the design of fully reconfigurable multi-band microwave bandpass filters (BPFs) with an arbitrary number of passbands is reported in this paper. It exploits the use of an innovative quasi-BPF configuration made up of different sets of controllable mono-frequency resonators to separately shape each tunable passband. Thus, high-selectivity multi-band bandpass filtering transfer functions exhibiting independent control in terms of center frequency, bandwidth, and transmission zeros can be synthesized. Furthermore, as an unprecedented frequency-agility feature of the proposed reconfigurable multi-band BPF structure when compared to the state-of-the-art, its passbands can be merged together to form broader, and for certain realizations, higher order transmission bands. This allows even more degrees of reconfiguration to be achieved in the devised circuit, which can also operate as ultra-wideband BPF with flexible in-band notches or self-equalized flat-group-delay quasi-elliptic-type BPF. The theoretical foundations of the described reconfigurable multi-band BPF scheme, along with guidelines for its design and a triple-passband filter synthesis example based on the coupled-node formalism, are expounded. In addition, as an experimental proof-of-concept, two microstrip prototypes with high-tuning implemented through mechanically variable capacitors are manufactured and tested. They are a wideband dual-band BPF and a quadruple-band BPF with narrow-bandwidth passbands.
C1 [Gomez-Garcia, Roberto] Univ Alcala De Henares, Dept Signal Theory & Commun, Madrid 28871, Spain.
[Guyette, Andrew C.] Naval Res Lab, Washington, DC 20375 USA.
RP Gomez-Garcia, R (reprint author), Univ Alcala De Henares, Dept Signal Theory & Commun, Madrid 28871, Spain.
EM roberto.gomez.garcia@ieee.org; andrew.guyette@nrl.navy.mil
FU Defense Advanced Research Project Agency (DARPA); Office of Naval
Research Global (ONRG) under the Naval International Cooperative
Opportunities (NICOP) program [N62902-14-1-025]
FX The work of R. Gomez-Garcia was supported by the Defense Advanced
Research Project Agency (DARPA) and by the Office of Naval Research
Global (ONRG) Research Grant N62902-14-1-025 under the Naval
International Cooperative Opportunities (NICOP) program.
NR 49
TC 22
Z9 22
U1 3
U2 24
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 APR
PY 2015
VL 63
IS 4
BP 1294
EP 1307
DI 10.1109/TMTT.2015.2405066
PG 14
WC Engineering, Electrical & Electronic
SC Engineering
GA CF4BW
UT WOS:000352494500020
ER
PT J
AU Huyer, SA
AF Huyer, Stephen A.
TI Postswirl Maneuvering Propulsor
SO JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME
LA English
DT Article
ID FLOW
AB This research examines the novel use of a postswirl propulsor to generate side forces sufficient for undersea vehicle control. Numerical simulations using the commercial computational fluid dynamics (CFD) code FLUENT (R) were used to predict the side forces for open and ducted, post-swirl propulsors configured with an upstream rotor and movable downstream stator row. By varying the pitch angles of the stator blade about the circumference, it is possible to generate a mean stator side force that can be used to maneuver the vehicle while generating sufficient roll to counter the torque produced by the rotor. A simple geometric configuration was used to minimize body geometry effects to better understand the flow physics with simulations conducted in a water tunnel environment. Flow computations highlighted the component forces and were used to characterize the velocity fields between the rotor and stator blade rows as well as the velocity field in the stator wake. There was significant coupling between the rotor and stator blade rows as demonstrated by the rotor wake velocity profiles. While the flow fields were coupled, there was not a significant difference in rotor axial or side forces except for the largest pitch amplitudes. Predictions showed that the maneuvering propulsor generated side forces predominantly by the stator and body that significantly exceeded those produced by conventional undersea vehicle control surfaces with side force coefficients on the order of 0.5. These forces are approximately three times larger than those generated by conventional control surfaces on 21 in. unmanned undersea vehicles (UUV's). Even for zero flow velocities, side forces were produced due to the induced flow produced by the rotor over the stator, further demonstrating the potential for this technology to be used for undersea vehicle maneuvering.
C1 Naval Undersea Warfare Ctr, Newport, RI 02841 USA.
RP Huyer, SA (reprint author), Naval Undersea Warfare Ctr, Newport, RI 02841 USA.
EM stephen.huyer@navy.mil
FU Naval Undersea Warfare Center
FX This work was sponsored by the Naval Undersea Warfare Center, Internal
Research Program, Mr. Neil Dubois, program manager.
NR 16
TC 0
Z9 0
U1 2
U2 3
PU ASME
PI NEW YORK
PA TWO PARK AVE, NEW YORK, NY 10016-5990 USA
SN 0098-2202
EI 1528-901X
J9 J FLUID ENG-T ASME
JI J. Fluids Eng.-Trans. ASME
PD APR
PY 2015
VL 137
IS 4
AR 041104
DI 10.1115/1.4029225
PG 10
WC Engineering, Mechanical
SC Engineering
GA CF4YU
UT WOS:000352561300004
ER
PT J
AU Tamayo, S
Patel, M
Yuan, Z
Sicignano, N
Hopf, K
Peacock, F
AF Tamayo, S.
Patel, M.
Yuan, Z.
Sicignano, N.
Hopf, K.
Peacock, F.
TI Major Bleeding in Rivaroxaban Users with Non-Valvular Atrial
Fibrillation in an Older Adult Population
SO JOURNAL OF THE AMERICAN GERIATRICS SOCIETY
LA English
DT Meeting Abstract
CT Annual Scientific Meeting of the American-Geriatrics-Society (AGS)
CY MAY 10-17, 2015
CL National Harbor, MD
SP Amer Geriatr Soc
C1 [Tamayo, S.] Naval Med Ctr Portsmouth, Portsmouth, VA USA.
[Patel, M.] Duke Clin Res Inst, Durham, NC USA.
[Yuan, Z.] Janssen Res & Dev LLC, Titusville, NJ USA.
[Sicignano, N.; Hopf, K.] Hlth ResearchTx LLC, Trevose, PA USA.
[Peacock, F.] Baylor Coll Med, Houston, TX 77030 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 0002-8614
EI 1532-5415
J9 J AM GERIATR SOC
JI J. Am. Geriatr. Soc.
PD APR
PY 2015
VL 63
SU 1
SI SI
MA C175
BP S221
EP S221
PG 1
WC Geriatrics & Gerontology; Gerontology
SC Geriatrics & Gerontology
GA CF5EL
UT WOS:000352578900621
ER
PT J
AU Mysliwiec, V
Capaldi, VF
Gill, J
Baxter, T
O'Reilly, BM
Matsangas, P
Roth, BJ
AF Mysliwiec, Vincent
Capaldi, Vincent F., II
Gill, Jessica
Baxter, Tristin
O'Reilly, Brian M.
Matsangas, Panagiotis
Roth, Bernard J.
TI Adherence to Positive Airway Pressure Therapy in US Military Personnel
With Sleep Apnea Improves Sleepiness, Sleep Quality, and Depressive
Symptoms
SO MILITARY MEDICINE
LA English
DT Article
ID POSTTRAUMATIC-STRESS-DISORDER; MOTOR-VEHICLE COLLISIONS; TRAUMATIC
BRAIN-INJURY; CPAP ADHERENCE; NASAL CPAP; DAYTIME SLEEPINESS;
CONTROLLED-TRIAL; OF-LIFE; ADULTS; AFGHANISTAN
AB Objectives: Obstructive sleep apnea (OSA) is frequently diagnosed in U.S. military personnel. OSA is associated with sleepiness, poor sleep quality, and service-related illnesses of insomnia, depression, post-traumatic stress disorder, and traumatic brain injury. Methods: Observational study of active duty military personnel with OSA and adherence to positive airway pressure (PAP) assessed with smart chip technology. Results: 58 men with mean age 36.2 +/- 7.7 years, mean body mass index 31.4 +/- 3.7 with mean apnea-hypopnea index (AHI) 19.1 +/- 19.0 are reported. 23 (39.7%) participants were adherent to PAP, and 35 (60.3%) were nonadherent. No significant differences in baseline demographics, apnea-hypopnea index, service-related illnesses, or clinical instrument scores. Military personnel adherent to PAP had significantly improved sleepiness (p = 0.007), sleep quality (p = 0.013), depressive symptoms (p = 0.01), energy/fatigue (p = 0.027), and emotional well-being (p = 0.024). Participants with moderate-severe OSA were more likely to be in the adherent group when compared with participants diagnosed with mild OSA. Conclusions: Military personnel with OSA have low adherence to PAP. Adherence is associated with improved depressive symptoms, sleepiness, sleep quality, energy/fatigue, emotional well-being, and social functioning. Future research should focus on interventions to improve the management of OSA in military personnel.
C1 [Mysliwiec, Vincent; Baxter, Tristin; O'Reilly, Brian M.; Roth, Bernard J.] Madigan Army Med Ctr, Dept Pulm Sleep Med Crit Care, Tacoma, WA 98431 USA.
[Capaldi, Vincent F., II] Walter Reed Army Inst Res, Silver Spring, MD 20910 USA.
[Gill, Jessica] NIH, Bethesda, MD 20892 USA.
[Matsangas, Panagiotis] US Navy, Postgrad Sch, Dept Operat Res, Monterey, CA 93943 USA.
RP Mysliwiec, V (reprint author), Madigan Army Med Ctr, Dept Pulm Sleep Med Crit Care, 9040A Fitzsimmons Ave, Tacoma, WA 98431 USA.
FU Center for Neuroscience and Regenerative Medicine [60855]
FX The authors thank Angela Mysliwiec, MD, Madigan Army Medical Center, for
editing assistance and review of the manuscript. Dr. Angela Mysliwiec
did not receive compensation for her contributions. This study was
supported, in part, by grant no. 60855 from the Center for Neuroscience
and Regenerative Medicine.
NR 55
TC 2
Z9 2
U1 0
U2 6
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 APR
PY 2015
VL 180
IS 4
BP 475
EP 482
DI 10.7205/MILMED-D-14-00197
PG 8
WC Medicine, General & Internal
SC General & Internal Medicine
GA CF6UJ
UT WOS:000352691600016
PM 25826354
ER
PT J
AU Robel, I
Shabaev, A
Lee, DC
Schaller, RD
Pietryga, JM
Crooker, SA
Efros, AL
Klimov, VI
AF Robel, Istvan
Shabaev, Andrew
Lee, Doh C.
Schaller, Richard D.
Pietryga, Jeffrey M.
Crooker, Scott A.
Efros, Alexander L.
Klimov, Victor I.
TI Temperature and Magnetic-Field Dependence of Radiative Decay in
Colloidal Germanium Quantum Dots
SO NANO LETTERS
LA English
DT Article
DE Germanium; nanooystal; quantum dot; dark and bright exciton;
electron-hole exchange interaction; photoluminescence; magnetic field
ID ABSORPTION-EDGE SPECTRUM; VISIBLE-LIGHT EMISSION; SILICON NANOCRYSTALS;
SI NANOCRYSTALS; SEMICONDUCTOR NANOCRYSTALS; GE NANOCRYSTALS;
FINE-STRUCTURE; DARK-EXCITON; PHOTOLUMINESCENCE; LUMINESCENCE
AB We conduct spectroscopic and theoretical studies of photoluminescence (PL) from Ge quantum dots (QDs) fabricated via colloidal synthesis. The dynamics of late-time PL exhibit a pronounced dependence on temperature and applied magnetic field, which can be explained by radiative decay involving two closely spaced, slowly emitting exciton states. In 3.5 nm QDs, these states are separated by similar to 1 meV and are characterized by similar to 82 mu s and similar to 18 mu s lifetimes. By using a four-band formalism, we calculate the fine structure of the indirect band-edge exciton arising from the electron-hole exchange interaction and the Coulomb interaction of the G-point hole with the anisotropic charge density of the Gamma-point electron. The calculations suggest that the observed PL dynamics can be explained by phonon-assisted recombination of excitons thermally distributed between the lower-energy "dark" state with the momentum projection J = +/- 2 and a higher energy "bright" state with J = +/- 1. A fairly small difference between lifetimes of these states is due to their mixing induced by the exchange term unique to crystals with a highly symmetric cubic lattice such as Ge.
C1 [Robel, Istvan; Lee, Doh C.; Schaller, Richard D.; Pietryga, Jeffrey M.; Klimov, Victor I.] Los Alamos Natl Lab, Div Chem, Los Alamos, NM 87545 USA.
[Crooker, Scott A.] Los Alamos Natl Lab, Natl High Magnet Field Lab, Los Alamos, NM 87545 USA.
[Shabaev, Andrew] George Mason Univ, Sch Phys Astron & Computat Sci, Fairfax, VA 22030 USA.
[Efros, Alexander L.] Naval Res Lab, Washington, DC 20375 USA.
RP Klimov, VI (reprint author), Los Alamos Natl Lab, Div Chem, POB 1663, Los Alamos, NM 87545 USA.
EM klimov@lanl.gov
RI Lee, Doh Chang/C-1835-2011; Robel, Istvan/D-4124-2011;
OI Robel, Istvan/0000-0002-9738-7728; Klimov, Victor/0000-0003-1158-3179
FU Chemical Sciences, Biosciences and Geosciences Division, Office of Basic
Energy Sciences (BES), Office of Science (OS), U.S. Department of Energy
(DOE); Center for Advanced Solar Photophysics (CASP) an Energy Frontier
Research Center - BES, OS, U.S. DOE; Office of Naval Research through
the Naval Research Laboratory Basic Research Program
FX I.R., D.C.L, R.D.S., J.M.P., SAC., and V.I.K. were supported by the
Chemical Sciences, Biosciences and Geosciences Division, Office of Basic
Energy Sciences (BES), Office of Science (OS), U.S. Department of Energy
(DOE). AS. was supported by the Center for Advanced Solar Photophysics
(CASP) an Energy Frontier Research Center funded by BES, OS, U.S. DOE.
A.L.E. acknowledges financial support of the Office of Naval Research
through the Naval Research Laboratory Basic Research Program.
NR 58
TC 3
Z9 3
U1 4
U2 72
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 APR
PY 2015
VL 15
IS 4
BP 2685
EP 2692
DI 10.1021/acs.nanolett.5b00344
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 CF7QA
UT WOS:000352750200071
PM 25793644
ER
PT J
AU Wu, CC
Lepping, RP
AF Wu, Chin-Chun
Lepping, Ronald P.
TI Comparisons of Characteristics of Magnetic Clouds and Cloud-Like
Structures During 1995-2012
SO SOLAR PHYSICS
LA English
DT Article
DE Magnetic cloud; Magnetic cloud-like-structure; Geomagnetic storm;
Coronal mass ejection; Solar activity; Solar cycle
ID 3-DIMENSIONAL GLOBAL SIMULATION; SOLAR-WIND; GEOMAGNETIC STORMS; 1 AU;
EVENTS; PROPAGATION; CMES
AB Using eighteen years (1995 -aEuro parts per thousand 2012) of solar wind plasma and magnetic field data (observed by the Wind spacecraft), solar activity (e.g. sunspot number: SSN), and the geomagnetic-activity index (Dst), we have identified 168 magnetic clouds (MCs) and 197 magnetic-cloud-like structures (MCLs), and we have made relevant comparisons. The following features are found during seven different periods (TP: total period during 1995 -aEuro parts per thousand 2012, P1 and P2: first and second half-period during 1995 -aEuro parts per thousand 2003 and 2004 -aEuro parts per thousand 2012, Q1 and Q2: quiet periods during 1995 -aEuro parts per thousand 1997 and 2007 -aEuro parts per thousand 2009, A1 and A2: active periods during 1998 -aEuro parts per thousand 2006 and 2010 -aEuro parts per thousand 2012). (1) During the total period, the yearly occurrence frequency is 9.3 for MCs and 10.9 for MCLs. (2) In the quiet periods aOE (c) N (MCs)>(Q1) > aOE (c) N (MCLs)>(Q1) and aOE (c) N (MCs)>(Q2) > aOE (c) N (MCLs)>(Q2), but in the active periods aOE (c) N (MCs)>(A1) < aOE (c) N (MCLs)>(A1) and aOE (c) N (MCs)>(A2) < aOE (c) N (MCLs)>(A2). (3) The minimum Bz (Bz (min)) inside of an MC is well correlated with the intensity of geomagnetic activity, Dst(min) (minimum Dst found within a storm event) for MCs (with a Pearson correlation coefficient, , and the fitting function is Dst(min)=0.90+7.78Bz (min)), but Bz (min) for MCLs is not well correlated with the Dst index (, and the fitting function is Dst(min)=-9.40+4.58Bz (min)). (4) MCs play a major role in producing geomagnetic storms: the absolute value of the average Dst(min) (aOE (c) Dst(min)>(MC)=-70 nT) for MCs associated geomagnetic storms is twice as strong as that for MCLs (aOE (c) Dst(min)>(MCL)=-35 nT) because of the difference in the IMF (interplanetary magnetic field) strength. (5) The SSN is uncorrelated with MCs (aOE (c) N (MCs)>(TP), ), but is well associated with MCLs (aOE (c) N (MCLs)>(TP), ). Note that the c.c. for SSN vs. aOE (c) N (MCs)>(P2) is higher than that for SSN vs. aOE (c) N (MCLs)>(P2). (6) Averages of IMF, solar wind speed, and density inside of the MCs are higher than those inside of the MCLs. (7) The average of MC duration (a parts per thousand aEuro parts per thousand 18.82 hours) is a parts per thousand aEuro parts per thousand 20 % longer than the average of MCL duration (a parts per thousand aEuro parts per thousand 15.69 hours). (8) There are more MCs than MCLs in the quiet solar period and more MCLs than MCs in the active solar period, probably as a result of the interaction between an MC and another significant interplanetary disturbance (including another MC), which could obviously change the character of an MC, but we speculate that some MCLs are no doubt due to other factors such as complex birth conditions at the Sun.
C1 [Wu, Chin-Chun] Naval Res Lab, Washington, DC 20375 USA.
[Lepping, Ronald P.] GSFC NASA, Greenbelt, MD USA.
RP Wu, CC (reprint author), Naval Res Lab, Washington, DC 20375 USA.
EM Chin-Chun.Wu@NRL.NAVY.MIL
FU ONR 6.1 program
FX We are grateful to the Wind SWE and MFI teams, Kyoto University (Dst
data), the World Data Center SILSO of the Royal Observatory of Belgium
(Sunspot number), and NOAA/NGDC (who provided web access for sunspot
number and Dst data sets) for the use of their data. This study is
supported by ONR 6.1 program (CCW).
NR 35
TC 11
Z9 11
U1 0
U2 3
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 APR
PY 2015
VL 290
IS 4
BP 1243
EP 1269
DI 10.1007/s11207-015-0656-5
PG 27
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA CF6YU
UT WOS:000352703700012
ER
PT J
AU Johnson-Laird, PN
Khemlani, SS
Goodwin, GP
AF Johnson-Laird, P. N.
Khemlani, Sangeet S.
Goodwin, Geoffrey P.
TI Logic, probability, and human reasoning
SO TRENDS IN COGNITIVE SCIENCES
LA English
DT Review
ID WORKING-MEMORY CAPACITY; MENTAL MODEL-THEORY; DEDUCTIVE INFERENCE;
ILLUSORY INFERENCES; FINETTI TABLES; DUAL PROCESSES; CONDITIONALS;
PSYCHOLOGY; COGNITION; PARADIGM
AB This review addresses the long-standing puzzle of how logic and probability fit together in human reasoning. Many cognitive scientists argue that conventional logic cannot underlie deductions, because it never requires valid conclusions to be withdrawn - not even if they are false; it treats conditional assertions implausibly; and it yields many vapid, although valid, conclusions. A new paradigm of probability logic allows conclusions to be withdrawn and treats conditionals more plausibly, although it does not address the problem of vapidity. The theory of mental models solves all of these problems. It explains how people reason about probabilities and postulates that the machinery for reasoning is itself probabilistic. Recent investigations accordingly suggest a Way to integrate probability and deduction.
C1 [Johnson-Laird, P. N.] Princeton Univ, Princeton, NJ 08544 USA.
[Johnson-Laird, P. N.] NYU, New York, NY USA.
[Khemlani, Sangeet S.] Naval Res Lab, Washington, DC 20375 USA.
[Goodwin, Geoffrey P.] Univ Penn, Philadelphia, PA 19104 USA.
RP Johnson-Laird, PN (reprint author), Princeton Univ, Princeton, NJ 08544 USA.
EM phil@princeton.edu
FU Jerome and Isabella Karle Fellowship from the Naval Research Laboratory
FX The authors thank Ruth Byrne, Rebecca Schwarzlose (TiCS editor), and two
anonymous reviewers for their constructive criticisms of an earlier
draft. They are also grateful to Igor Douven, Niki Pfeifer, Gernot
Kleiter, and Klaus Oberauer for helping them to clarify their views
about the four key hypotheses of the new paradigm. This research was
supported by a Jerome and Isabella Karle Fellowship from the Naval
Research Laboratory to S.S.K.
NR 160
TC 22
Z9 22
U1 6
U2 20
PU ELSEVIER SCIENCE LONDON
PI LONDON
PA 84 THEOBALDS RD, LONDON WC1X 8RR, ENGLAND
SN 1364-6613
J9 TRENDS COGN SCI
JI TRENDS COGN. SCI.
PD APR
PY 2015
VL 19
IS 4
BP 201
EP 214
DI 10.1016/j.tics.2015.02.006
PG 14
WC Behavioral Sciences; Neurosciences; Psychology, Experimental
SC Behavioral Sciences; Neurosciences & Neurology; Psychology
GA CF6NY
UT WOS:000352674600008
PM 25770779
ER
PT J
AU Parad, A
Leonard, E
Handler, L
AF Parad, Adrienne
Leonard, Elizabeth
Handler, Lara
TI Exercise and Pregnancy Loss
SO AMERICAN FAMILY PHYSICIAN
LA English
DT Editorial Material
ID PHYSICAL EXERTION; MISCARRIAGE; RISK
C1 [Parad, Adrienne] Lawrence Mem Med Grp, Mystic, CT 06379 USA.
[Leonard, Elizabeth] Naval Hosp, Camp Lejeune, NC USA.
[Handler, Lara] Univ N Carolina, Hlth Sci Lib, Chapel Hill, NC USA.
RP Parad, A (reprint author), Lawrence Mem Med Grp, Mystic, CT 06379 USA.
EM alparad@lmhosp.org
NR 7
TC 0
Z9 0
U1 1
U2 5
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 APR 1
PY 2015
VL 91
IS 7
BP 437
EP 438
PG 2
WC Primary Health Care; Medicine, General & Internal
SC General & Internal Medicine
GA CE8UM
UT WOS:000352119600003
PM 25884740
ER
PT J
AU Essock-Burns, T
Leary, D
Solderbloom, E
Orihuela, B
Moseley, A
Spillmann, C
Wahl, K
Rittschof, D
AF Essock-Burns, T.
Leary, D.
Solderbloom, E.
Orihuela, B.
Moseley, A.
Spillmann, C.
Wahl, K.
Rittschof, D.
TI Use of Arthropod Wound Healing Mechanisms in Barnacles Amphibalanus
(=Balanus) amphitrite
SO INTEGRATIVE AND COMPARATIVE BIOLOGY
LA English
DT Meeting Abstract
CT Annual Meeting of the Society-for-Integrative-and-Comparative-Biology
(SICB)
CY JAN 03-07, 2015
CL West Palm Beach, FL
SP Soc Integrat & Comparat Biol
C1 Duke Univ, Durham, NC 27706 USA.
US Naval Res Lab, Washington, DC USA.
EM tara.essock-burns@duke.edu
NR 0
TC 0
Z9 0
U1 0
U2 4
PU OXFORD UNIV PRESS INC
PI CARY
PA JOURNALS DEPT, 2001 EVANS RD, CARY, NC 27513 USA
SN 1540-7063
EI 1557-7023
J9 INTEGR COMP BIOL
JI Integr. Comp. Biol.
PD APR
PY 2015
VL 55
SU 1
MA 48.6
BP E53
EP E53
PG 1
WC Zoology
SC Zoology
GA CF6HS
UT WOS:000352658400212
ER
PT J
AU Frumkin, K
AF Frumkin, Kenneth
TI BACTERIOLOGY OF URINARY TRACT INFECTIONS IN EMERGENCY PATIENTS AGED 0-36
MONTHS
SO JOURNAL OF EMERGENCY MEDICINE
LA English
DT Article
DE UTI; pediatrics; infectious disease; guidelines; cultures
ID YOUNG FEBRILE CHILDREN; ESCHERICHIA-COLI; TECHNICAL REPORT; INITIAL UTI;
VACCINE ERA; 1ST YEAR; INFANTS; RESISTANCE; PREVALENCE; BACTEREMIA
AB Background: Because urinary tract infection (UTI) is the most frequent source of serious bacterial infections in young children, we studied the bacteriology of such infections in our institution. Objectives: Pediatric urine cultures were reviewed for age-and sex-specific differences in testing, prevalence, causative organisms, and antibiotic sensitivities. Methods: A retrospective 5-year observational study of all urine cultures from Emergency Department patients aged 0-36 months found 4403 cultures. Primary outcomes were numbers of cultures obtained, infections found, the organisms isolated, and their antibiotic sensitivities. Results: Boys were cultured much less frequently (overall 4.7% vs. 19.4% of girls, p < 0.001). Three hundred ninety-six cultures yielded infection episodes. Although far fewer boys were cultured, their overall positive culture rate (10.9%) was significantly higher than for girls (8.4%; p = 0.01), with more Gram-positive organisms (52.3%; vs. 18.6% Gram-positives in girls; p < 0.001). The rate of positive cultures in boys and girls remained 8.4% and 10.3%, respectively, even in 2-year-olds. Trimethoprim-sulfamethoxazole and amoxicillin/clavulanic acid were effective against all isolates. Conclusions: Age-and sex-based assumptions guiding evaluation for and treatment of UTIs in young children should be reevaluated. We may not be culturing enough young boys, risking missed UTIs with potential for renal injury in this vulnerable group. Based on their significant rate of Gram-positive infections, those boys we treat empirically might benefit more from trimethoprim/sulfamethoxazole or amoxicillin/clavulanic acid than from third-generation cephalosporins. The persistence of positive cultures in 2-year-olds suggests we should be culturing beyond 24 months in both sexes. Urine Gram stains should be more frequently considered. Published by Elsevier Inc.
C1 Naval Med Ctr Portsmouth, Dept Emergency Med, Portsmouth, VA 23708 USA.
RP Frumkin, K (reprint author), Naval Med Ctr Portsmouth, Dept Emergency Med, 620 John Paul Jones Circle, Portsmouth, VA 23708 USA.
NR 54
TC 0
Z9 0
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 APR
PY 2015
VL 48
IS 4
BP 405
EP 415
DI 10.1016/j.jemermed.2014.11.004
PG 11
WC Emergency Medicine
SC Emergency Medicine
GA CE8RU
UT WOS:000352112600008
PM 25541327
ER
PT J
AU Patrick, MA
Holt, JA
Joye, CD
De Lucia, FC
AF Patrick, Mark A.
Holt, Jennifer A.
Joye, Colin D.
De Lucia, Frank C.
TI Range resolved mode mixing in a large volume for the mitigation of
speckle and strategic target orientation requirements in active
millimeter-wave imaging
SO JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND
VISION
LA English
DT Article
ID CONCEALED-OBJECT DETECTION; 100 GHZ; ILLUMINATION; REDUCTION; REGION;
CAMERA; ARRAY
AB In spite of many reports of active millimeter-wave imaging in the literature, speckle and requirements for cooperative target orientation significantly reduce its practical usefulness. Here we report a new technique, range resolved mode mixing (RRMM), which significantly mitigates both of these issues. It also provides a three-dimensional (3D) image. RRMM accomplishes this by combining multimode illumination (which eliminates the requirement for cooperative target orientation) with range resolution (which provides statistical independence of speckle patterns for averaging and the 3D image). The use of a 5W extended interaction klystron amplifier results in large signal margins in the 50 m scale atrium of the Physics Department at Ohio State University. It appears that there are a number of scenarios out to a range of 1 km for which this approach is useful to provide 3D images, with minimal speckle, and no requirement for cooperative target orientation. (C) 2015 Optical Society of America
C1 [Patrick, Mark A.; Holt, Jennifer A.; De Lucia, Frank C.] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA.
[Joye, Colin D.] US Naval Res Lab, Washington, DC 20375 USA.
RP De Lucia, FC (reprint author), Ohio State Univ, Dept Phys, 174 W 18th Ave, Columbus, OH 43210 USA.
EM delucia.2@osu.edu
FU Defense Advanced Research Project Agency; Army Research Office; Office
of Naval Research
FX We acknowledge the Defense Advanced Research Project Agency, the Army
Research Office, and the Office of Naval Research for their support of
this work.
NR 31
TC 0
Z9 0
U1 0
U2 2
PU OPTICAL SOC AMER
PI WASHINGTON
PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA
SN 1084-7529
EI 1520-8532
J9 J OPT SOC AM A
JI J. Opt. Soc. Am. A-Opt. Image Sci. Vis.
PD APR
PY 2015
VL 32
IS 4
BP 637
EP 646
DI 10.1364/JOSAA.32.000637
PG 10
WC Optics
SC Optics
GA CF0CH
UT WOS:000352209700017
PM 26366774
ER
PT J
AU Nichols, JM
Miller, C
AF Nichols, J. M.
Miller, C.
TI Analytical expression for the average ensquared energy
SO JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND
VISION
LA English
DT Article
ID OBSCURED CIRCULAR PUPILS; POWER
AB We derive an expression for the average area of intersection between a blur spot of radius R and a square pixel, where the center of the blur is uniformly chosen from the pixel interior. Implications of the result are then discussed in the context of a point source detection problem.
C1 [Nichols, J. M.; Miller, C.] Naval Res Lab, Washington, DC 20375 USA.
RP Nichols, JM (reprint author), Naval Res Lab, 4555 Overlook Ave,Code 5665, Washington, DC 20375 USA.
EM jonathan.nichols@nrl.navy.mil
FU Naval Research Laboratory, Base Program [6.2]
FX The authors would like to acknowledge funding from the Naval Research
Laboratory as part of a 6.2 Base Program.
NR 15
TC 4
Z9 4
U1 0
U2 0
PU OPTICAL SOC AMER
PI WASHINGTON
PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA
SN 1084-7529
EI 1520-8532
J9 J OPT SOC AM A
JI J. Opt. Soc. Am. A-Opt. Image Sci. Vis.
PD APR
PY 2015
VL 32
IS 4
BP 654
EP 659
DI 10.1364/JOSAA.32.000654
PG 6
WC Optics
SC Optics
GA CF0CH
UT WOS:000352209700019
PM 26366776
ER
PT J
AU Barrett, BS
Henley, BN
AF Barrett, Bradford S.
Henley, Brittany N.
TI Intraseasonal Variability of Hail in the Contiguous United States:
Relationship to the Madden-Julian Oscillation
SO MONTHLY WEATHER REVIEW
LA English
DT Article
ID NONTORNADIC OUTBREAKS; CLIMATOLOGY; REANALYSIS; PREDICTABILITY;
ENVIRONMENTS; SIMULATIONS; PREDICTION; GROWTH; STORMS; FLOW
AB Climatologies have been developed to highlight variability of the frequency and intensity of hail in the United States. However, the intraseasonal variability of hail, including why one week might be active while the following inactive despite both having similar climatological probabilities, has not yet been explored. This paper presents relationships between spring-season (April-June) hail days and the leading mode of atmospheric intraseasonal variability, the Madden-Julian oscillation (MJO). It extends recent work on intraseasonal tornado variability to smaller spatial scales. In April, May, and June, statistically significant variability in hail days was found for different Real-time Multivariate MJO(RMM) phases of the MJO. For April, the strongest correlations between hail-day anomalies and anomalies of the product of convective available potential energy (CAPE) and 0-6-km vertical wind shear were found in RMM phase 5, with above-normal likelihood of a hail day found in the south-central United States. For May, the strongest correlations were found in RMM phase 3, with below-normal likelihood of a hail day located over the north-central United States. For June, the strongest correlations were found in phase 8, with above-normal likelihood of hail in west Texas and below-normal likelihood of hail over much of the middle of the United States. In all phases, 300-hPa height anomalies in the United States formed part of a global wave train similar to MJO patterns in both modeling and observational studies.
C1 [Barrett, Bradford S.; Henley, Brittany N.] US Naval Acad, Dept Oceanog, Annapolis, MD 21402 USA.
RP Barrett, BS (reprint author), US Naval Acad, Dept Oceanog, 572C Holloway Rd, Annapolis, MD 21402 USA.
EM bbarrett@usna.edu
FU NSF [AGS-1240143]
FX This work was partially supported by NSF Grant AGS-1240143. The authors
thank V. Gensini for providing gridded 0-6-km shear data from the NARR.
The authors thank S. Mrose-Boles of the Science and Engineering
Apprenticeship Program (SEAP) and H. Leslie for providing helpful edits
to the manuscript. Finally, the authors thank the anonymous reviewers
for their helpful comments and suggestions.
NR 53
TC 2
Z9 2
U1 1
U2 9
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 APR
PY 2015
VL 143
IS 4
BP 1086
EP 1103
DI 10.1175/MWR-D-14-00257.1
PG 18
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA CE8PR
UT WOS:000352106400006
ER
PT J
AU Archambault, HM
Keyser, D
Bosart, LF
Davis, CA
Cordeira, JM
AF Archambault, Heather M.
Keyser, Daniel
Bosart, Lance F.
Davis, Christopher A.
Cordeira, Jason M.
TI A Composite Perspective of the Extratropical Flow Response to Recurving
Western North Pacific Tropical Cyclones
SO MONTHLY WEATHER REVIEW
LA English
DT Article
ID GEOSTROPHIC VERTICAL MOTIONS; PREDECESSOR RAIN EVENTS; DOWNSTREAM
IMPACTS; Q-VECTOR; PART II; BAROCLINIC WAVES; FORECAST ERROR;
TRANSITION; MIDLATITUDE; JET
AB This study investigates the composite extratropical flow response to recurving western North Pacific tropical cyclones (WNP TCs), and the dependence of this response on the strength of the TC-extratropical flow interaction as defined by the negative potential vorticity advection (PV) by the irrotational wind associated with the TC. The 2.5 degrees NCEP-NCAR reanalysis is used to construct composite analyses of all 1979-2009 recurving WNP TCs and of subsets that undergo strong and weak TC-extratropical flow interactions.
Findings indicate that recurving WNP TCs are associated with the amplification of a preexisting Rossby wave train (RWT) that disperses downstream and modifies the large-scale flow pattern over North America. This RWT affects approximately 240 degrees of longitude and persists for approximately 10 days. Recurving TCs associated with strong TC-extratropical flow interactions are associated with a stronger extratropical flow response than those associated with weak TC-extratropical flow interactions. Compared with weak interactions, strong interactions feature a more distinct upstream trough, stronger and broader divergent outflow associated with stronger midlevel frontogenesis and forcing for ascent over and northeast of the TC, and stronger upper-level PV frontogenesis that promotes more pronounced jet streak intensification. During strong interactions, divergent outflow helps anchor and amplify a downstream ridge, thereby amplifying a preexisting RWT from Asia that disperses downstream to North America. In contrast, during weak interactions, divergent outflow weakly amplifies a downstream ridge, such that a RWT briefly amplifies in situ before dissipating over the western-central North Pacific.
C1 [Archambault, Heather M.] Naval Postgrad Sch, Dept Meteorol, Monterey, CA USA.
[Keyser, Daniel; Bosart, Lance F.] SUNY Albany, Dept Atmospher & Environm Sci, Albany, NY 12222 USA.
[Davis, Christopher A.] Natl Ctr Atmospher Res, Boulder, CO 80307 USA.
[Cordeira, Jason M.] Plymouth State Univ, Dept Atmospher Sci & Chem, Plymouth, NH USA.
RP Archambault, HM (reprint author), 1315 East West Hwy, Silver Spring, MD 20910 USA.
EM heather.archambault@noaa.gov
FU NSF [AGS-0935830]; NOAA [NA09OAR4310192]; National Research Council
Research Associateship Award at the Naval Postgraduate School
FX We are grateful to the three anonymous reviewers who offered specific,
thoughtful suggestions for improvements to an earlier version of the
paper. We thank Drs. Brian Colle (Stony Brook University), Christian
Grams (ETH), Pat Harr (Naval Postgraduate School), Wayne Higgins
(NOAA/Climate Program Office), Michael Riemer (University of Mainz), and
Ryan Torn (University at Albany) for helpful discussions. This research
was funded 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, and during the first author's three-month visit
with coauthor Chris Davis, which was supported by the NCAR Advanced
Study Program Graduate Student Visitor Program.
NR 73
TC 7
Z9 7
U1 1
U2 5
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 APR
PY 2015
VL 143
IS 4
BP 1122
EP 1141
DI 10.1175/MWR-D-14-00270.1
PG 20
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA CE8PR
UT WOS:000352106400008
ER
PT J
AU Spott, A
Davenport, M
Peters, J
Bovington, J
Heck, MJR
Stanton, EJ
Vurgaftman, I
Meyer, J
Bowers, J
AF Spott, Alexander
Davenport, Michael
Peters, Jon
Bovington, Jock
Heck, Martijn J. R.
Stanton, Eric J.
Vurgaftman, Igor
Meyer, Jerry
Bowers, John
TI Heterogeneously integrated 2.0 mu m CW hybrid silicon lasers at room
temperature
SO OPTICS LETTERS
LA English
DT Article
ID WAVE-GUIDES
AB Here we experimentally demonstrate room temperature, continuous-wave (CW), 2.0 mu m wavelength lasers heterogeneously integrated on silicon. Molecular wafer bonding of InP to Si is employed. These hybrid silicon lasers operate CW up to 35 degrees C and emit up to 4.2 mW of single-facet CW power at room temperature. III-V tapers transfer light from a hybrid III-V/silicon optical mode into a Si waveguide mode. These lasers enable the realization of a number of sensing and detection applications in compact silicon photonic systems. (C) 2015 Optical Society of America
C1 [Spott, Alexander; Davenport, Michael; Peters, Jon; Bovington, Jock; Heck, Martijn J. R.; Stanton, Eric J.; Bowers, John] Univ Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USA.
[Vurgaftman, Igor; Meyer, Jerry] Naval Res Lab, Washington, DC USA.
RP Spott, A (reprint author), Univ Calif Santa Barbara, Dept Elect & Comp Engn, Santa Barbara, CA 93106 USA.
EM spott@ece.ucsb.edu
RI Heck, Martijn/G-2677-2013
OI Heck, Martijn/0000-0003-4201-4614
FU Office of Naval Research (ONR); National Science Foundation Graduate
Research Fellowship [DGE 1144085]
FX The work at both UCSB and NRL is supported by the Office of Naval
Research (ONR). This material is based upon work supported by the
National Science Foundation Graduate Research Fellowship under Grant No.
DGE 1144085. We thank nLight and C. L. Canedy, J. Abell, C. D. Merritt,
W. W. Bewley, and C. S. Kim of NRL for useful discussions.
NR 14
TC 19
Z9 19
U1 1
U2 7
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 APR 1
PY 2015
VL 40
IS 7
BP 1480
EP 1483
DI 10.1364/OL.40.001480
PG 4
WC Optics
SC Optics
GA CE9HK
UT WOS:000352154600089
PM 25831364
ER
PT J
AU Hafizi, B
Palastro, JP
Penano, JR
Gordon, DF
Jones, TG
Helle, MH
Kaganovich, D
AF Hafizi, B.
Palastro, J. P.
Penano, J. R.
Gordon, D. F.
Jones, T. G.
Helle, M. H.
Kaganovich, D.
TI Stimulated Raman scattering and nonlinear focusing of high-power laser
beams propagating in water
SO OPTICS LETTERS
LA English
DT Article
AB The physical processes associated with propagation of a high-power (power > critical power for self-focusing) laser beam in water include nonlinear focusing, stimulated Raman scattering (SRS), optical breakdown, and plasma formation. The interplay between nonlinear focusing and SRS is analyzed for cases where a significant portion of the pump power is channeled into the Stokes wave. Propagation simulations and an analytical model demonstrate that the Stokes wave can re-focus the pump wave after the power in the latter falls below the critical power. It is shown that this novel focusing mechanism is distinct from cross-phase focusing. The phenomenon of gain-focusing discussed here for propagation in water is expected to be of general occurrence applicable to any medium supporting nonlinear focusing and stimulated Raman scattering. (C) 2015 Optical Society of America
C1 [Hafizi, B.; Penano, J. R.; Gordon, D. F.; Jones, T. G.; Helle, M. H.; Kaganovich, D.] Naval Res Lab, Washington, DC 20375 USA.
[Palastro, J. P.] Icarus Res Inc, Bethesda, MD 20824 USA.
RP Hafizi, B (reprint author), Naval Res Lab, Washington, DC 20375 USA.
EM bahman.hafizi@nrl.navy.mil
OI Kaganovich, Dmitri/0000-0002-0905-5871
FU Naval Research Laboratory Base Program
FX The authors would like to acknowledge helpful discussions with Y.-H.
Chen and A. Ting. This work was supported by the Naval Research
Laboratory Base Program.
NR 19
TC 2
Z9 2
U1 1
U2 10
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 APR 1
PY 2015
VL 40
IS 7
BP 1556
EP 1558
DI 10.1364/OL.40.001556
PG 3
WC Optics
SC Optics
GA CE9HK
UT WOS:000352154600108
PM 25831383
ER
PT J
AU Fleming, B
AF Fleming, Bruce
TI The Vocabulary of Transgender Theory
SO SOCIETY
LA English
DT Editorial Material
DE Transgender theory; Sex-change operation; Sexual orientation
AB The article considers the nascent vocabulary of transgender theory. What are the implications of separating "sex" from "gender" and such locutions as someone "being a woman in the body of a man"? It suggests that this vocabulary is problematic and based on a false view that I alone can control the vocabulary others use to refer to me.
C1 US Naval Acad, Dept English 12B, Annapolis, MD 21402 USA.
RP Fleming, B (reprint author), US Naval Acad, Dept English 12B, Annapolis, MD 21402 USA.
EM fleming@usna.edu
NR 0
TC 0
Z9 0
U1 7
U2 12
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0147-2011
EI 1936-4725
J9 SOCIETY
JI Society
PD APR
PY 2015
VL 52
IS 2
BP 114
EP 120
DI 10.1007/s12115-015-9870-x
PG 7
WC Social Sciences, Interdisciplinary; Sociology
SC Social Sciences - Other Topics; Sociology
GA CE9HL
UT WOS:000352154700001
ER
PT J
AU Downey, BP
Meyer, DJ
Katzer, DS
Marron, TM
Pan, M
Gao, X
AF Downey, B. P.
Meyer, D. J.
Katzer, D. S.
Marron, T. M.
Pan, M.
Gao, X.
TI Effect of SiNx gate insulator thickness on electrical properties of
SiNx/In0.17Al0.83N/AlN/GaN MIS-HEMTs
SO SOLID-STATE ELECTRONICS
LA English
DT Article
DE GaN; HEMT; Interface charge; Gate insulator
ID MILLIMETER-WAVE APPLICATIONS; ALGAN/GAN HEMTS; PASSIVATION; PERFORMANCE;
TECHNOLOGY; EPITAXY; HFETS
AB The effect of SiNx thickness on device characteristics such as threshold voltage, carrier density, and carrier mobility have been determined for a metal-organic chemical-vapor-deposition grown In0.17Al0.83N/AlN/GaN structure with an ultra-thin In0.17Al0.83N/AIN (2.3/1 nm) barrier layer. The SiNx gate dielectric was deposited ex situ in an RF plasma assisted molecular beam epitaxy system. The threshold voltage shifts negatively and the carrier density increases as the SiNx thickness is increased from 1 to 6 nm due to the presence of a positive charge at the SiNx/In0.17Al0.83N interface. An interfacial charge of +3.84 x 10(13) cm(-2) was extracted through the dependence of threshold voltage on insulator thickness. While remote charge scattering from the interfacial charge is shown to limit the carrier mobility, values as high as 1550 cm(2)/V s were achieved. Low gate and off-state drain leakage currents of less than 500 nA/mm, a drain current ON/OFF ratio of approximately 10(7), and a normalized three terminal breakdown voltage of approximately 60-80 V/mu m gate-drain spacing were achieved on these ultra-thin In0.17Al0.83N/AlN barrier devices by implementing a thin SiNx gate insulator. The ability to maintain a short gate-to-channel distance while utilizing a gate insulator for reduced leakage current and improved breakdown can provide a pathway for higher power millimeter-wavelength amplifier performance. Published by Elsevier Ltd.
C1 [Downey, B. P.; Meyer, D. J.; Katzer, D. S.] US Naval Res Lab, Elect Sci & Technol Div, Washington, DC 20375 USA.
[Marron, T. M.] Naval Surface Warfare Ctr, Dahlgren, VA 22448 USA.
[Pan, M.; Gao, X.] IQE RF, Somerset, NJ 08873 USA.
RP Downey, BP (reprint author), US Naval Res Lab, Elect Sci & Technol Div, 4555 Overlook Ave,SW, Washington, DC 20375 USA.
EM brian.downey@nrl.navy.mil
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 with funding from Dr. Paul Maki.
NR 31
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Z9 5
U1 1
U2 36
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0038-1101
EI 1879-2405
J9 SOLID STATE ELECTRON
JI Solid-State Electron.
PD APR
PY 2015
VL 106
BP 12
EP 17
DI 10.1016/j.sse.2014.12.025
PG 6
WC Engineering, Electrical & Electronic; Physics, Applied; Physics,
Condensed Matter
SC Engineering; Physics
GA CF7OV
UT WOS:000352747100002
ER
PT J
AU Leski, TA
Stockelman, MG
Moses, LM
Park, M
Stenger, DA
Ansumana, R
Bausch, DG
Lin, BC
AF Leski, Tomasz A.
Stockelman, Michael G.
Moses, Lina M.
Park, Matthew
Stenger, David A.
Ansumana, Rashid
Bausch, Daniel G.
Lin, Baochuan
TI Sequence Variability and Geographic Distribution of Lassa Virus, Sierra
Leone
SO EMERGING INFECTIOUS DISEASES
LA English
DT Article
ID REVERSE TRANSCRIPTION-PCR; WEST-AFRICA; MASTOMYS-NATALENSIS; FEVER;
GUINEA; ASSAY; RISK; IDENTIFICATION; EPIDEMIOLOGY; INFECTION
AB Lassa virus (LASV) is endemic to parts of West Africa and causes highly fatal hemorrhagic fever. The multimammate rat (Mastomys natalensis) is the only known reservoir of LASV. Most human infections result from zoonotic transmission. The very diverse LASV genome has 4 major lineages associated with different geographic locations. We used reverse transcription PCR and resequencing microarrays to detect LASV in 41 of 214 samples from rodents captured at 8 locations in Sierra Leone. Phylogenetic analysis of partial sequences of nucleoprotein (NP), glycoprotein precursor (GPO), and polymerase (L) genes showed 5 separate clades within lineage IV of LASV in this country. The sequence diversity was higher than previously observed; mean diversity was 7.01% for nucleoprotein gene at the nucleotide level. These results may have major implications for designing diagnostic tests and therapeutic agents for LASV infections in Sierra Leone.
C1 [Leski, Tomasz A.; Stockelman, Michael G.; Stenger, David A.; Lin, Baochuan] Naval Res Lab, Washington, DC 20375 USA.
[Moses, Lina M.] Tulane Univ, New Orleans, LA 70118 USA.
[Moses, Lina M.; Bausch, Daniel G.] Tulane Sch Publ Hlth & Trop Med, New Orleans, LA USA.
[Park, Matthew] Thomas Jefferson High Sch, Alexandria, VA USA.
[Ansumana, Rashid] Mercy Hosp Res Lab, Bo, Sierra Leone.
[Ansumana, Rashid] Univ Liverpool, Liverpool Sch Trop Med, Liverpool L3 5QA, Merseyside, England.
[Ansumana, Rashid] Njala Univ, Bo, Italy.
RP Leski, TA (reprint author), Naval Res Lab, 4555 Overlook Ave SW,Code 6910, Washington, DC 20375 USA.
EM tomasz.leski@nrl.navy.mil
RI Leski, Tomasz/K-6916-2013; Lin, Baochuan/A-8390-2009
OI Leski, Tomasz/0000-0001-7688-9887; Lin, Baochuan/0000-0002-9484-0785
FU Office of Naval Research; American Society for Engineering Education,
Office of Naval Research, SEAP at the Naval Research Laboratory
FX Funding for this project was provided by the Office of Naval Research.
M.P. was a Science and Engineering Apprenticeship Program (SEAP) summer
intern supported by the American Society for Engineering Education as
part of the Office of Naval Research, SEAP, at the Naval Research
Laboratory.
NR 36
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Z9 4
U1 6
U2 23
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 APR
PY 2015
VL 21
IS 4
BP 609
EP 618
DI 10.3201/eid2104.141469
PG 10
WC Immunology; Infectious Diseases
SC Immunology; Infectious Diseases
GA CE2NK
UT WOS:000351652100008
PM 25811712
ER
PT J
AU LeBlanc, J
Shukla, A
AF LeBlanc, James
Shukla, Arun
TI Response of polyurea-coated flat composite plates to underwater
explosive loading
SO JOURNAL OF COMPOSITE MATERIALS
LA English
DT Article
DE Composite materials; UNDEX loading; polyurea coatings; computational
modeling; digital image correlation
ID CAPABILITY; COATINGS; MODEL
AB An experimental and numerical study has been conducted to evaluate the underwater blast response of E-Glass/epoxy composite plates with polyurea coatings. The goal of the study is to determine the effects of these elastomeric coatings on the dynamic response of the plates, specifically the influence of coating thickness, location, and plate natural frequency. The composite material is a 0 degrees/90 degrees biaxial layup and the coatings are applied to either the loaded or non-loaded faces. A conical shock tube facility which produces shock loading conditions representative of the underwater detonation of an explosive charge is used to impart the shock loading to the plates during the experiments. The transient response of the plates is recorded using a three-dimensional (3D) digital image correlation system, consisting of high-speed photography and specialized post processing software. Computational models of the experiments are developed using the LS-DYNA finite element code. The simulations are shown to have a high level of correlation to the experimental data in terms of center point displacements and full field deformation profiles. Additional parametric studies using the correlated model show that the transient response of the composite plates is improved with increasing coating thickness, and that polyurea coatings located on the back face of the panels provide better performance than when located on the loaded surface.
C1 [LeBlanc, James] Naval Undersea Warfare Ctr, Div Newport, Newport, RI USA.
[Shukla, Arun] Univ Rhode Isl, Kingston, RI 02881 USA.
RP LeBlanc, J (reprint author), Naval Undersea Warfare Ctr, 1176 Howell St, Newport, RI 02841 USA.
EM James.M.LeBlanc@navy.mil
FU Naval Undersea Warfare Center (Division Newport) In-house Laboratory
Independent Research program (ILIR); Office of Naval Research under ONR
[N00014-10-1-0662]
FX The financial support of the Naval Undersea Warfare Center (Division
Newport) In-house Laboratory Independent Research program (ILIR)
directed by Neil Dubois is greatly acknowledged. Arun Shukla would like
to acknowledge the support of Office of Naval Research under ONR Grant
No. N00014-10-1-0662 (Dr Y.D.S. Rajapakse) to the University of Rhode
Island.
NR 19
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U1 4
U2 16
PU SAGE PUBLICATIONS LTD
PI LONDON
PA 1 OLIVERS YARD, 55 CITY ROAD, LONDON EC1Y 1SP, ENGLAND
SN 0021-9983
EI 1530-793X
J9 J COMPOS MATER
JI J. Compos Mater.
PD APR
PY 2015
VL 49
IS 8
BP 965
EP 980
DI 10.1177/0021998314528263
PG 16
WC Materials Science, Composites
SC Materials Science
GA CE6OS
UT WOS:000351958200007
ER
PT J
AU Mohr, SB
Gorham, ED
Garland, CF
Grant, WB
Garland, FC
Cuomo, RE
AF Mohr, Sharif B.
Gorham, Edward D.
Garland, Cedric F.
Grant, William B.
Garland, Frank C.
Cuomo, Raphael E.
TI Are low ultraviolet B and vitamin D associated with higher incidence of
multiple myeloma?
SO JOURNAL OF STEROID BIOCHEMISTRY AND MOLECULAR BIOLOGY
LA English
DT Review
DE Myeloma; Ultraviolet rays; Incidence; Vitamin D; Alcohol; Cigarettes;
Multiple regression; International comparisons
ID BREAST-CANCER; INCIDENCE RATES; PLASMA 25-HYDROXYVITAMIN-D; SERUM
25-HYDROXYVITAMIN-D; OVARIAN-CANCER; RISK; IRRADIANCE; PREVENTION;
COUNTRIES; 1,25-DIHYDROXYVITAMIN-D
AB Background: The purpose of this study was to determine whether an inverse association exists between latitude, solar ultraviolet B (UVB) irradiance, and incidence rates of multiple myeloma. Methods Associations of latitude and UVB irradiance with age-standardized incidence rates of multiple myeloma were analyzed for 175 countries while controlling for sex-specific obesity prevalence, cigarette consumption, and alcohol consumption using multiple linear regression. Results Incidence rates of multiple myeloma were greater at higher latitudes (R-2 for latitude for males = 0.31, p < 0.0001; females R-2=0.27, p < 0.0001). In regression models for males (R-2=0.62, p < 0.0001) and females (R-2=0.51, p < 0.0001), UVB irradiance was independently inversely associated with incidence rates. Conclusions Age-adjusted incidence rates of multiple myeloma were higher in countries with lower solar UVB irradiance. Further investigation is warranted in individuals of the association of prediagnostic serum 25 (OH)D with risk. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Mohr, Sharif B.; Gorham, Edward D.; Garland, Cedric F.; Garland, Frank C.; Cuomo, Raphael E.] Univ Calif San Diego, Dept Family & Prevent Med, La Jolla, CA 92093 USA.
[Mohr, Sharif B.; Gorham, Edward D.; Garland, Frank C.] Naval Hlth Res Ctr, San Diego, CA USA.
[Grant, William B.] Sunlight Nutr & Hlth Res Ctr, San Francisco, CA USA.
[Cuomo, Raphael E.] San Diego State Univ, Grad Sch Publ Hlth, San Diego, CA 92182 USA.
RP Cuomo, RE (reprint author), Univ Calif San Diego, Dept Family & Prevent Med, 9500 Gilman Dr, La Jolla, CA 92093 USA.
EM raphael.e.cuomo@gmail.com
RI Grant, William/B-8311-2009
OI Grant, William/0000-0002-1439-3285
FU Medical University of South Carolina, Charleston SC, through the
Department of the Navy, Bureau of Medicine and Surgery [60126]
FX This research was supported by a Congressional allocation to the
Hollings Cancer Center of the Medical University of South Carolina,
Charleston SC, through the Department of the Navy, Bureau of Medicine
and Surgery, under Work Unit No. 60126. The views expressed in this
report are those of the authors and do not represent an official
position of the Department of the Navy, Department of Defense, or the U.
S. Government.
NR 38
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U1 0
U2 4
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0960-0760
J9 J STEROID BIOCHEM
JI J. Steroid Biochem. Mol. Biol.
PD APR
PY 2015
VL 148
SI SI
BP 245
EP 252
DI 10.1016/j.jsbmb.2014.12.005
PG 8
WC Biochemistry & Molecular Biology; Endocrinology & Metabolism
SC Biochemistry & Molecular Biology; Endocrinology & Metabolism
GA CE4FJ
UT WOS:000351786200037
PM 25500072
ER
PT J
AU LeardMann, CA
Woodall, KA
Littman, AJ
Jacobson, IG
Boyko, EJ
Smith, B
Wells, TS
Crum-Cianflone, NF
AF LeardMann, Cynthia A.
Woodall, Kelly A.
Littman, Alyson J.
Jacobson, Isabel G.
Boyko, Edward J.
Smith, Besa
Wells, Timothy S.
Crum-Cianflone, Nancy F.
TI Post-Traumatic Stress Disorder Predicts Future Weight Change in the
Millennium Cohort Study
SO OBESITY
LA English
DT Article
ID NATIONALLY REPRESENTATIVE SAMPLE; BODY-MASS INDEX; MILITARY SERVICE;
PRIMARY-CARE; FOLLOW-UP; PRIME-MD; HEALTH; OBESITY; PTSD; US
AB ObjectiveTo prospectively examine the association between post-traumatic stress disorder (PTSD) and weight change.
MethodsLongitudinal analysis techniques were used to examine data (2001-2008) from Millennium Cohort Study participants, consisting of U.S. service members and veterans. Using the PTSD Checklist-Civilian Version, PTSD was assessed as none, resolved, new onset, or persistent. Subsequent weight change was assessed as stable (loss or gain), >3% weight loss, >3% but <10% weight gain, and 10% weight gain.
ResultsOf the 38,352 participants, 2391 (6.2%) had PTSD (838 resolved, 1024 new onset, and 529 persistent), and 11% of participants subsequently had 10% weight gain. In multivariable models, PTSD was associated with higher odds of 10% weight gain (new onset OR: 1.44 [95% CI: 1.20-1.73]; persistent OR: 1.51 [CI: 1.17-1.96]; resolved OR: 1.30 [CI: 1.05-1.60]) compared with those without PTSD. New-onset and persistent PTSD were also associated with higher odds of >3% weight loss (OR: 1.41 [CI: 1.17-1.71]; OR: 1.42 [CI: 1.09-1.86], respectively).
ConclusionsPTSD is independently associated with a higher risk of weight gain and loss, the former of which leads to a higher prevalence of overweight and obesity and a higher risk of comorbidities associated with excessive body adiposity.
C1 [LeardMann, Cynthia A.; Woodall, Kelly A.; Jacobson, Isabel G.; Smith, Besa; Wells, Timothy S.; Crum-Cianflone, Nancy F.] Naval Hlth Res Ctr, Deployment Hlth Res Dept, San Diego, CA 92106 USA.
[Littman, Alyson J.; Boyko, Edward J.] Vet Affairs Puget Sound Hlth Care Syst, Seattle Epidemiol Res & Informat Ctr, Seattle, WA USA.
RP LeardMann, CA (reprint author), Naval Hlth Res Ctr, Deployment Hlth Res Dept, San Diego, CA 92106 USA.
EM cynthia.leardmann@med.navy.mil
FU Military Operational Medicine Research Program of the U.S. Army Medical
Research and Materiel Command, Fort Detrick, Maryland; Veterans Affairs
Puget Sound Health Care System; Rehabilitation Research VA Career
Development Award [6982]; Department of Defense [60002]
FX The Millennium Cohort Study is funded through the Military Operational
Medicine Research Program of the U.S. Army Medical Research and Materiel
Command, Fort Detrick, Maryland. Drs. Boyko and Littman's efforts in
this project were supported by Veterans Affairs Puget Sound Health Care
System. Dr. Littman's time was also supported in part through a
Rehabilitation Research VA Career Development Award (#6982). This
research represents Naval Health Research Center report 14-06, 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 U.S. Government. The
funding organizations had no role in the design and conduct of the
study; collection, analysis, or preparation of data; or preparation,
review, or approval of the manuscript. Approved for public release;
distribution is unlimited.
NR 39
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U1 1
U2 2
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1930-7381
EI 1930-739X
J9 OBESITY
JI Obesity
PD APR
PY 2015
VL 23
IS 4
BP 886
EP 892
DI 10.1002/oby.21025
PG 7
WC Endocrinology & Metabolism; Nutrition & Dietetics
SC Endocrinology & Metabolism; Nutrition & Dietetics
GA CE4XA
UT WOS:000351832400025
PM 25776806
ER
PT J
AU Suzuki, M
Deschamps, JR
Jacobson, AE
Rice, KC
AF Suzuki, Masaki
Deschamps, Jeffrey R.
Jacobson, Arthur E.
Rice, Kenner C.
TI Chiral Resolution and Absolute Configuration of the Enantiomers of the
Psychoactive "Designer Drug" 3,4-Methylenedioxypyrovalerone
SO CHIRALITY
LA English
DT Article
DE 3; 4-methylenedioxypyrovalerone (MDPV); designer drug; bath salts;
euphoric stimulant; synthesis; non-chromatographic chiral resolution
ID SYNTHETIC CATHINONES; BATH SALTS
AB Illicit rac-MDPV (3,4-methylenedioxypyrovalerone), manufactured in clandestine labs, has become widely abused for its cocaine-like stimulant properties. It has recently been found as one of the toxic materials in the so-called bath salts, producing, among other effects, psychosis and tachycardia in humans when introduced by any of the several routes of administration (e.g., intravenous, oral, etc.). The considerable toxicity of this designer drug probably resides in one of the enantiomers of the racemate. In order to obtain a sufficient amount of the enantiomers of rac-MDPV to determine their activity, we improved the known synthesis of rac-MDPV and found chemical resolving agents, (+)- and (-)-2'-bromotetranilic acid, that gave the MDPV enantiomers in >96% enantiomeric excess as determined by H-1 nuclear magnetic resonance and chiral high-performance liquid chromatography. The absolute stereochemistry of these enantiomers was determined by single-crystal X-ray diffraction studies. Chirality 27:287-293, 2015. Published 2015. This article is a U.S. Government work and is in the public domain in the USA.
C1 [Suzuki, Masaki; Jacobson, Arthur E.; Rice, Kenner C.] NIDA, Drug Design & Synth Sect, Mol Targets & Medicat Discovery Branch, NIH,Dept Hlth & Human Serv, Bethesda, MD 20892 USA.
[Deschamps, Jeffrey R.] Naval Res Lab, Ctr Biomol Sci & Engn, Washington, DC 20375 USA.
RP Rice, KC (reprint author), NIDA, Drug Design & Synth Sect, Mol Targets & Medicat Discovery Branch, NIH,Dept Hlth & Human Serv, 9800 Med Ctr Dr,Rm 228A, Bethesda, MD 20892 USA.
EM kr21f@nih.gov
FU NIH Intramural Research Program of the National Institute on Drug Abuse
(NIDA); NIH Intramural Research Program of the National Institute of
Alcohol Abuse and Alcoholism; NIDA [Y1-DA1101]; Naval Research
Laboratory
FX The work of the Drug Design and Synthesis Section, 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 X-ray crystallographic work was supported by
NIDA through an Interagency Agreement #Y1-DA1101 with the Naval Research
Laboratory. We thank Dr. Klaus Gawrisch and Dr. Walter Teague
(Laboratory of Membrane Biochemistry and Biophysics, NIAAA), for NMR
spectral data. The authors also thank Noel Whittaker, Mass Spectrometry
Facility, NIDDK, for mass spectral data.
NR 11
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U1 4
U2 19
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0899-0042
EI 1520-636X
J9 CHIRALITY
JI Chirality
PD APR
PY 2015
VL 27
IS 4
BP 287
EP 293
DI 10.1002/chir.22423
PG 7
WC Chemistry, Medicinal; Chemistry, Analytical; Chemistry, Organic;
Pharmacology & Pharmacy
SC Pharmacology & Pharmacy; Chemistry
GA CD9ZA
UT WOS:000351459400001
PM 25727807
ER
PT J
AU Denning, DE
AF Denning, Dorothy E.
TI Toward More Secure Software
SO COMMUNICATIONS OF THE ACM
LA English
DT Editorial Material
C1 Naval Postgrad Sch, Monterey, CA 93943 USA.
RP Denning, DE (reprint author), Naval Postgrad Sch, Monterey, CA 93943 USA.
EM dedennin@nps.edu
NR 9
TC 4
Z9 4
U1 0
U2 2
PU ASSOC COMPUTING MACHINERY
PI NEW YORK
PA 2 PENN PLAZA, STE 701, NEW YORK, NY 10121-0701 USA
SN 0001-0782
EI 1557-7317
J9 COMMUN ACM
JI Commun. ACM
PD APR
PY 2015
VL 58
IS 4
BP 24
EP 26
DI 10.1145/2736281
PG 3
WC Computer Science, Hardware & Architecture; Computer Science, Software
Engineering; Computer Science, Theory & Methods
SC Computer Science
GA CE3NW
UT WOS:000351734500013
ER
PT J
AU Armstrong, EP
Malone, DC
Krishnan, S
Wessler, MJ
AF Armstrong, Edward P.
Malone, Daniel C.
Krishnan, Sangeeta
Wessler, Maj Jacob
TI Adherence to clotting factors among persons with hemophilia A or B
SO HEMATOLOGY
LA English
DT Article
DE Hemophilia; Medication adherence; Compliance; Bleeding; Pharmacy;
Regimens
ID QUALITY-OF-LIFE; PROPHYLAXIS THERAPY; UNITED-STATES; POPULATION;
COUNTRIES; DISEASE
AB Objective: Evaluate adherence to clotting factor treatment and associated outcomes for patients with hemophilia using an integrated delivery database.
Methods: This was a retrospective, observational study tracking patients between 2006 and 2011. Patients with diagnosis codes for hemophilia were identified. Bleeding and complication rates were annualized over the study period. Medication adherence was assessed using prescription claims for clotting factors by examining sequential time periods of 180 days for each patient's continuous enrollment. Adherence within the time period was calculated using the 'days supply' field divided by 180 days. Under the assumption that severe patients should be treated prophylactically, patients were considered adherent within the time period if the ratio of 'days supply' to observed days was 60% or greater.
Results: A total of 207 patients (74.9 and 25.1% hemophilia A and B, respectively) met the inclusion/exclusion criteria. There were 101 (48.8%) mild, 32 (15.5%) moderate, and 74 (35.7%) severe patients with hemophilia. The percentage of time periods where adherence to clotting factors was 60% or greater was 14% (SD = 28%) for mild disease, 21% (SD = 32%) for moderate disease, and 51% (SD = 36%) for severe disease. Among patients with severe disease, 27 (36.5%) were adherent = 30% of time periods, 22 (29.7%) adherent 31-70% of the time periods, and 25 (33.8%) were adherent = 71% of time periods. Joint bleeding episodes and hospitalizations were uncommon events among the three groups.
Conclusions: Among patients with severe disease, the majority (66.2%) were adherent < 70% of the time.
C1 [Armstrong, Edward P.; Malone, Daniel C.] Strateg Therapeut LLC, Tucson, AZ 85737 USA.
[Armstrong, Edward P.; Malone, Daniel C.] Univ Arizona, Coll Pharm, Tucson, AZ 85721 USA.
[Krishnan, Sangeeta] Biogen Idec Inc, Weston, MA USA.
[Wessler, Maj Jacob] Naval Med Ctr Portsmouth, Dept Pediat, Portsmouth, VA USA.
RP Armstrong, EP (reprint author), Strateg Therapeut LLC, 11020 N Canada Ridge Dr, Tucson, AZ 85737 USA.
EM ed.armstrong@strategictherapeutics.com
FU Biogen Idec
FX Funding This project was funded by Biogen Idec. No products manufactured
by Biogen Idec were included in the analysis.
NR 25
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U1 1
U2 4
PU MANEY PUBLISHING
PI LEEDS
PA STE 1C, JOSEPHS WELL, HANOVER WALK, LEEDS LS3 1AB, W YORKS, ENGLAND
SN 1024-5332
EI 1607-8454
J9 HEMATOLOGY
JI Hematology
PD APR
PY 2015
VL 20
IS 3
BP 148
EP 153
DI 10.1179/1607845414Y.0000000176
PG 6
WC Hematology
SC Hematology
GA CE2VS
UT WOS:000351679100005
PM 25001343
ER
PT J
AU Tian, LG
Dong, LT
Phan, N
Atluri, SN
AF Tian, Longgang
Dong, Leiting
Nam Phan
Atluri, Satya N.
TI Three-Dimensional SGBEM-FEM Alternating Method for Analyzing
Fatigue-Crack Growth in and the Life of Attachment Lugs
SO JOURNAL OF ENGINEERING MECHANICS
LA English
DT Article
ID SURFACE CRACKS; FRACTURE-MECHANICS; SINGULAR TRACTION; ROUND BARS;
ELEMENTS; ELASTICITY; INTEGRALS; TENSION; HOLE; BIE
AB In the present paper, stress intensity factor (SIF) analyses and fatigue-crack-growth simulations of corner cracks emanating from loaded pinholes of attachment lugs in structural assemblies are carried out for different load cases. A three-dimensional (3D) symmetric Galerkin boundary-element method (SGBEM) and FEM alternating method is developed to analyze the nonplanar growth of these surface cracks under general fatigue. The 3D SGBEM-FEM alternating method involves two very simple and coarse meshes that are independent of each other: (1) a very coarse FEM mesh to analyze the uncracked lug, and (2) a very coarse SGBEM mesh to model only the growing crack surface. By using the SGBEM-FEM alternating method, the nonplanar growth of cracks in 3D (surfaces of discontinuity) up to the failure of structures are efficiently simulated, and accurate estimations of fatigue lives are made. The accuracy and reliability of the SGBEM-FEM alternating method are verified by comparing them to other FEM solutions, as well as experimental data for fatigue-crack growth available in the open literature. The SIF calculations, crack surface evolutions, and fatigue-life estimations are all in good agreement with other detailed FEM solutions and experimental observations. It is noted that for fracture and fatigue analyses of complex 3D structures such as attachment lugs, a pure FEM requires several hundreds of thousands or even millions of elements, whereas the present 3D SGBEM-FEM alternating method requires only up to 1,000 FEM elements and similar to 100 SGBEM elements. It thus demonstrates that the present SGBEM-FEM alternating method, among the many Schwartz-Neumann-type alternating methods developed in the past 20-30 years are suitable for analyzing fracture and fatigue-crack propagation in complex 3D structures in a very computationally efficient manner, as well as with very low human labor costs. (C) 2014 American Society of Civil Engineers.
C1 [Tian, Longgang] Tongji Univ, Dept Geotech Engn, Coll Civil Engn, Shanghai 200092, Peoples R China.
[Dong, Leiting] Hohai Univ, Dept Engn Mech, Nanjing 210098, Jiangsu, Peoples R China.
[Nam Phan] Naval Air Syst Command, Struct Div, Patuxent River, MD 20670 USA.
[Atluri, Satya N.] Univ Calif Irvine, Ctr Aerosp Res & Educ, Irvine, CA 92697 USA.
RP Dong, LT (reprint author), Hohai Univ, Dept Engn Mech, Nanjing 210098, Jiangsu, Peoples R China.
EM dong.leiting@gmail.com
RI TIAN, Longgang/M-5826-2013; Atluri, Satya/D-1386-2011; Dong, Leiting
/D-7970-2013
OI TIAN, Longgang/0000-0003-4250-8083; Dong, Leiting /0000-0003-1460-1846
FU China Scholarship Council [201306260034]; National Basic Research
Program of China (973 Program) [2011CB013800]; New Century Excellent
Talents Project in China [NCET-12-0415]
FX The first author gratefully acknowledges the financial support of the
China Scholarship Council (grant 201306260034), the National Basic
Research Program of China (973 Program, grant 2011CB013800), and the New
Century Excellent Talents Project in China (grant NCET-12-0415).
NR 55
TC 0
Z9 0
U1 2
U2 18
PU ASCE-AMER SOC CIVIL ENGINEERS
PI RESTON
PA 1801 ALEXANDER BELL DR, RESTON, VA 20191-4400 USA
SN 0733-9399
EI 1943-7889
J9 J ENG MECH
JI J. Eng. Mech.
PD APR
PY 2015
VL 141
IS 4
AR 04014142
DI 10.1061/(ASCE)EM.1943-7889.0000870
PG 12
WC Engineering, Mechanical
SC Engineering
GA CD9OR
UT WOS:000351428200006
ER
PT J
AU Hill, JM
AF Hill, John M.
TI ANGLO-SAXON KEYWORDS
SO JOURNAL OF ENGLISH AND GERMANIC PHILOLOGY
LA English
DT Book Review
C1 [Hill, John M.] US Naval Acad, Annapolis, MD 21402 USA.
RP Hill, JM (reprint author), US Naval Acad, Annapolis, MD 21402 USA.
NR 1
TC 0
Z9 0
U1 0
U2 1
PU UNIV ILLINOIS PRESS
PI CHAMPAIGN
PA 1325 S OAK ST, CHAMPAIGN, IL 61820-6903 USA
SN 0363-6941
J9 J ENGL GER PHILOL
JI J. Engl. Ger. Philol.
PD APR
PY 2015
VL 114
IS 2
BP 292
EP 294
PG 3
WC Language & Linguistics; Literature, British Isles; Literature, German,
Dutch, Scandinavian; Medieval & Renaissance Studies
SC Linguistics; Literature; Arts & Humanities - Other Topics
GA CE0EX
UT WOS:000351478400006
ER
PT J
AU Anderson, W
Barros, JM
Christensen, KT
Awasthi, A
AF Anderson, William
Barros, Julio M.
Christensen, Kenneth T.
Awasthi, Ankit
TI Numerical and experimental study of mechanisms responsible for turbulent
secondary flows in boundary layer flows over spanwise heterogeneous
roughness
SO JOURNAL OF FLUID MECHANICS
LA English
DT Article
DE turbulent boundary layers; turbulent flows
ID LARGE-EDDY SIMULATION; SCALE 3-DIMENSIONAL STRUCTURES;
SURFACE-ROUGHNESS; WALL TURBULENCE; VORTEX PACKETS; CHANNEL FLOW;
ORGANIZATION; VORTICITY; CURRENTS; REGION
AB We study the dynamics of turbulent boundary layer flow over a heterogeneous topography composed of roughness patches exhibiting relatively high and low correlation in the streamwise and spanwise directions, respectively (i.e. the roughness appears as streamwise-aligned 'strips'). It has been reported that such roughness induces a spanwise-wall normal mean secondary flow in the form of mean streamwise vorticity associated with counter-rotating boundary-layer-scale circulations. Here, we demonstrate that this mean secondary flow is Prandtl's secondary flow of the second kind, both driven and sustained by spatial gradients in the Reynolds-stress components, which cause a subsequent imbalance between production and dissipation of turbulent kinetic energy that necessitates secondary advective velocities. In reaching this conclusion, we study (i) secondary circulations due to spatial gradients of turbulent kinetic energy, and (ii) the production budgets of mean streamwise vorticity by gradients of the Reynolds stresses. We attribute the secondary flow phenomena to extreme peaks of surface stress on the relatively high-roughness regions and associated elevated turbulence production in the fluid immediately above. An optimized state is attained by entrainment of fluid exhibiting the lowest turbulent stresses - from above - and subsequent lateral ejection in order to preserve conservation of mass.
C1 [Anderson, William; Awasthi, Ankit] Univ Texas Dallas, Mech Engn Dept, Richardson, TX 75080 USA.
[Barros, Julio M.] US Naval Acad, Dept Mech Engn, Annapolis, MD 21402 USA.
[Christensen, Kenneth T.] Univ Notre Dame, Dept Aerosp & Mech Engn, Notre Dame, IN 46556 USA.
[Christensen, Kenneth T.] Univ Notre Dame, Dept Civil & Environm Engn & Earth Sci, Notre Dame, IN 46556 USA.
[Christensen, Kenneth T.] Kyushu Univ, Int Inst Carbon Neutral Energy Res WPI I2CNER, Nishi Ku, Fukuoka 8190395, Japan.
RP Anderson, W (reprint author), Univ Texas Dallas, Mech Engn Dept, Richardson, TX 75080 USA.
EM wca140030@utdallas.edu
RI Christensen, Kenneth/B-1123-2009; U-ID, Kyushu/C-5291-2016
OI Christensen, Kenneth/0000-0003-1468-2455;
FU Air Force Office of Scientific Research [FA9550-07-1-0129,
FA9550-10-1-0372, FA9550-14-1-0101]; Air Force Office of Scientific
Research, Young Investigator Program [FA9550-14-1-0394]
FX This work was supported by the Air Force Office of Scientific Research
(Program Managers: Drs J. Schmisseur and R. Ponnappan) under grant nos
FA9550-07-1-0129 (K.T.C.), FA9550-10-1-0372 (K.T.C.) and
FA9550-14-1-0101 (W.A., K.T.C.). W.A. was also supported by the Air
Force Office of Scientific Research, Young Investigator Program, grant
no. FA9550-14-1-0394 (Program Managers: Drs J. Schmisseur and E.
Montgomery). Computational resources were provided by Academic and
Research Computing Services at Baylor University. W.A. thanks Ms Dina
Caplinger (UT Dallas Office of Sponsored Projects) for internal
administering of supporting grants. We thank the anonymous reviewers and
Professor Ron Adrian for insightful comments made on this work.
NR 80
TC 9
Z9 9
U1 1
U2 30
PU CAMBRIDGE UNIV PRESS
PI NEW YORK
PA 32 AVENUE OF THE AMERICAS, NEW YORK, NY 10013-2473 USA
SN 0022-1120
EI 1469-7645
J9 J FLUID MECH
JI J. Fluid Mech.
PD APR
PY 2015
VL 768
DI 10.1017/jfm.2015.91
PG 32
WC Mechanics; Physics, Fluids & Plasmas
SC Mechanics; Physics
GA CD6VZ
UT WOS:000351229500017
ER
PT J
AU Spinner, NS
Field, CR
Hammond, MH
Williams, BA
Myers, KM
Lubrano, AL
Rose-Pehrsson, SL
Tuttle, SG
AF Spinner, Neil S.
Field, Christopher R.
Hammond, Mark H.
Williams, Bradley A.
Myers, Kristina M.
Lubrano, Adam L.
Rose-Pehrsson, Susan L.
Tuttle, Steven G.
TI Physical and chemical analysis of lithium-ion battery cell-to-cell
failure events inside custom fire chamber
SO JOURNAL OF POWER SOURCES
LA English
DT Article
DE Lithium-ion batteries; Failure; Cell-to-cell propagation; Gas analysis;
Surrogate cells
ID OVERCHARGE; ABUSE; COMPONENTS
AB A 5-cubic meter decompression chamber was re-purposed as a fire test chamber to conduct failure and abuse experiments on lithium-ion batteries. Various modifications were performed to enable remote control and monitoring of chamber functions, along with collection of data from instrumentation during tests including high speed and infrared cameras, a Fourier transform infrared spectrometer, real-time gas analyzers, and compact reconfigurable input and output devices. Single- and multi-cell packages of LiCoO2 chemistry 18650 lithium-ion batteries were constructed and data was obtained and analyzed for abuse and failure tests. Surrogate 18650 cells were designed and fabricated for multi-cell packages that mimicked the thermal behavior of real cells without using any active components, enabling internal temperature monitoring of cells adjacent to the active cell undergoing failure. Heat propagation and video recordings before, during, and after energetic failure events revealed a high degree of heterogeneity; some batteries exhibited short burst of sparks while others experienced a longer, sustained flame during failure. Carbon monoxide, carbon dioxide, methane, dimethyl carbonate, and ethylene carbonate were detected via gas analysis, and the presence of these species was consistent throughout all failure events. These results highlight the inherent danger in large format lithium-ion battery packs with regards to cell-to-cell failure, and illustrate the need for effective safety features. Published by Elsevier B.V.
C1 [Spinner, Neil S.; Field, Christopher R.; Hammond, Mark H.; Williams, Bradley A.; Myers, Kristina M.; Lubrano, Adam L.; Rose-Pehrsson, Susan L.; Tuttle, Steven G.] US Navy, Res Lab, Navy Technol Ctr Safety & Survivabil, Div Chem, Washington, DC 20375 USA.
[Spinner, Neil S.] Natl Acad Sci, Natl Res Council, Washington, DC 20001 USA.
[Myers, Kristina M.; Lubrano, Adam L.] Nova Res Inc, Alexandria, VA 22308 USA.
RP Tuttle, SG (reprint author), US Navy, Res Lab, Navy Technol Ctr Safety & Survivabil, Div Chem, 4555 Overlook Ave,SW, Washington, DC 20375 USA.
EM steven.tuttle@nrl.navy.mil
FU Office of Naval Research [40001414WX20004]
FX The authors would like to thank the Office of Naval Research (award
number 40001414WX20004) for financial support of this work.
NR 26
TC 7
Z9 7
U1 7
U2 58
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0378-7753
EI 1873-2755
J9 J POWER SOURCES
JI J. Power Sources
PD APR 1
PY 2015
VL 279
BP 713
EP 721
DI 10.1016/j.jpowsour.2015.01.068
PG 9
WC Chemistry, Physical; Electrochemistry; Energy & Fuels; Materials
Science, Multidisciplinary
SC Chemistry; Electrochemistry; Energy & Fuels; Materials Science
GA CD2OT
UT WOS:000350919600080
ER
PT J
AU Silvestrini, RT
AF Silvestrini, Rachel T.
TI Considerations for D-Optimal Sequential Design
SO QUALITY AND RELIABILITY ENGINEERING INTERNATIONAL
LA English
DT Article
DE design of experiments; alphabetic optimal design; linear regression
AB Classical D-optimal design is used to create experimental designs for situations in which an underlying system model is known or assumed known. The D-optimal strategy can also be used to add additional experimental runs to an existing design. This paper demonstrates a study of variable choices related to sequential D-optimal design and how those choices influence the D-efficiency of the resulting complete design. The variables studied are total sample size, initial experimental design size, step size, whether or not to include center points in the initial design, and complexity of initial model assumption. The results indicate that increasing total sample size improves the D-efficiency of the design, less effort should be placed in the initial design, especially when the true underlying system model isn't known, and it is better to start off with assuming a simpler model form, rather than a complex model, assuming that the experimenter can reach the true model form during the sequential experiments. Copyright (C) 2013 John Wiley & Sons, Ltd.
C1 Naval Postgrad Sch, Dept Operat Res, Monterey, CA 93943 USA.
RP Silvestrini, RT (reprint author), Naval Postgrad Sch, Dept Operat Res, Monterey, CA 93943 USA.
EM rtsilves@nps.edu
NR 9
TC 0
Z9 0
U1 1
U2 5
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0748-8017
EI 1099-1638
J9 QUAL RELIAB ENG INT
JI Qual. Reliab. Eng. Int.
PD APR
PY 2015
VL 31
IS 3
BP 399
EP 410
DI 10.1002/qre.1600
PG 12
WC Engineering, Multidisciplinary; Engineering, Industrial; Operations
Research & Management Science
SC Engineering; Operations Research & Management Science
GA CD9QY
UT WOS:000351434200007
ER
PT J
AU Mouw, CB
Greb, S
Aurin, D
DiGiacomo, PM
Lee, Z
Twardowski, M
Binding, C
Hu, CM
Ma, RH
Moore, T
Moses, W
Craig, SE
AF Mouw, Colleen B.
Greb, Steven
Aurin, Dirk
DiGiacomo, Paul M.
Lee, Zhongping
Twardowski, Michael
Binding, Caren
Hu, Chuanmin
Ma, Ronghua
Moore, Timothy
Moses, Wesley
Craig, Susanne E.
TI Aquatic color radiometry remote sensing of coastal and inland waters:
Challenges and recommendations for future satellite missions
SO REMOTE SENSING OF ENVIRONMENT
LA English
DT Review
DE Remote sensing; Optics; Coastal oceanography; Limnology; Water quality
ID INHERENT OPTICAL-PROPERTIES; DISSOLVED ORGANIC-MATTER; INDUCED
CHLOROPHYLL FLUORESCENCE; TURBID PRODUCTIVE WATERS; AIR-POLLUTION
EVENTS; OCEAN COLOR; CYANOBACTERIAL BLOOMS; LEAVING RADIANCE;
ATMOSPHERIC CORRECTION; SEMIANALYTICAL MODEL
AB Aquatic color radiometry remote sensing of coastal and inland water bodies is of great interest to a wide variety of research, management, and commercial entities as well as the general public. However, most current satellite radiometers were primarily designed for observing the global ocean and not necessarily for observing coastal and inland waters. Therefore, deriving coastal and inland aquatic applications from existing sensors is challenging. We describe the current and desired state of the science and highlight unresolved issues in four fundamental elements of aquatic satellite remote sensing namely, mission capability, in situ observations, algorithm development, and operational capacity. We discuss solutions, future plans, and recommendations that directly affect the science and societal impact of future missions with capability for observing coastal and inland aquatic systems. (C) 2015 Elsevier Inc. All rights reserved.
C1 [Mouw, Colleen B.] Michigan Technol Univ, Houghton, MI 49931 USA.
[Greb, Steven] Wisconsin Dept Nat Resources, Madison, WI 53716 USA.
[Aurin, Dirk] NASA Goddard Space Flight Ctr, Sci Syst & Applicat, Greenbelt, MD 20771 USA.
[DiGiacomo, Paul M.] NOAA NESDIS Ctr Satellite Applicat & Res, College Pk, MD 20740 USA.
[Lee, Zhongping] Univ Massachusetts, Boston, MA 02125 USA.
[Twardowski, Michael] WETLabs Inc, Narragansett, RI 02882 USA.
[Binding, Caren] Environm Canada, Burlington, ON L7R 4A6, Canada.
[Hu, Chuanmin] Univ S Florida, Coll Marine Sci, St Petersburg, FL USA.
[Ma, Ronghua] Chinese Acad Sci, Nanjing Inst Geog & Limnol, Nanjing 210008, Jiangsu, Peoples R China.
[Moses, Wesley] Naval Res Lab, Durham, NH 03824 USA.
[Craig, Susanne E.] Dalhousie Univ, Dept Oceanog, Halifax, NS B3H 4R2, Canada.
RP Mouw, CB (reprint author), Michigan Technol Univ, 1400 Townsend Dr, Houghton, MI 49931 USA.
EM cbmouw@mtu.edu; Steven.Greb@Wisconsin.gov; dirka.aurin@nasa.gov;
paul.digiacomo@noaa.gov; zhongping.lee@umb.edu; mtwardo@wetlabs.com;
Caren.Binding@ec.gc.ca; huc@usf.edu; rhma@niglas.ac.cn;
timothy.moore@unh.edu; wesley.moses@nrl.navy.mil; susanne.craig@dal.ca
RI DiGiacomo, Paul/F-5584-2010; Mouw, Colleen/M-4431-2015;
OI DiGiacomo, Paul/0000-0003-4550-1899; Mouw, Colleen/0000-0003-2516-1882;
Moses, Wesley/0000-0003-3551-6093
FU National Aeronautics and Space Administration [NNX12AJ07G, NNX14AB80G]
FX Financial support for this effort was provided by the National
Aeronautics and Space Administration (NNX12AJ07G and NNX14AB80G). The
ideas, views and recommendations presented in this article were
developed from the contributions of all participants of the "Workshop
for Remote Sensing of Coastal and Inland Waters" held on June 20-22,
2012 in Madison, Wisconsin (Mouw & Greb, 2012). The comments from Marvin
Bauer and four anonymous reviewers greatly improved the manuscript. The
contents of this article are solely the opinions of the authors and do
not constitute a statement of policy, decision, or position on behalf of
the National Oceanic and Atmospheric Administration (NOAA) or the U.S.
Government. This is contribution number 6 of Great Lakes Research Center
at Michigan Technological University.
NR 199
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Z9 25
U1 18
U2 84
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 0034-4257
EI 1879-0704
J9 REMOTE SENS ENVIRON
JI Remote Sens. Environ.
PD APR
PY 2015
VL 160
BP 15
EP 30
DI 10.1016/j.rse.2015.02.001
PG 16
WC Environmental Sciences; Remote Sensing; Imaging Science & Photographic
Technology
SC Environmental Sciences & Ecology; Remote Sensing; Imaging Science &
Photographic Technology
GA CE2KO
UT WOS:000351644700002
ER
PT J
AU Seagren, CW
AF Seagren, Chad W.
TI A Replication and Analysis of Tiebout Competition Using an Agent-Based
Computational Model
SO SOCIAL SCIENCE COMPUTER REVIEW
LA English
DT Article
DE tiebout competition; agent-based modeling; voting behavior; local
government
ID POLITICAL-INSTITUTIONS; PARTIES
AB Replication is a critical element of the scientific process. This article is an effort to contribute to the slowly growing literature concerning the replication of agent-based computational models. We present a replication of Kollman, Miller, and Page's model of Tiebout sorting. In that model, individual agents with heterogeneous preferences for government policies select among jurisdictions that offer the most satisfactory package of government services. This project makes three contributions to the literature. First, our successful replication provides the research community with a modernized version of that seminal model. Second, we confirm that earlier results with respect to the single jurisdiction setting are highly robust with respect to voter preferences, while the results for multiple jurisdiction settings are more sensitive. Finally, we demonstrate a technique for conducting sensitivity analyses that leverages a high-dimensional experimental design.
C1 [Seagren, Chad W.] Naval Postgrad Sch, Operat Res, Monterey, CA 93943 USA.
RP Seagren, CW (reprint author), Naval Postgrad Sch, 1411 Cunningham Rd,GI-239, Monterey, CA 93943 USA.
EM cwseagre@nps.edu
NR 19
TC 1
Z9 2
U1 0
U2 2
PU SAGE PUBLICATIONS INC
PI THOUSAND OAKS
PA 2455 TELLER RD, THOUSAND OAKS, CA 91320 USA
SN 0894-4393
EI 1552-8286
J9 SOC SCI COMPUT REV
JI Soc. Sci. Comput. Rev.
PD APR
PY 2015
VL 33
IS 2
BP 198
EP 216
DI 10.1177/0894439314534810
PG 19
WC Computer Science, Interdisciplinary Applications; Information Science &
Library Science; Social Sciences, Interdisciplinary
SC Computer Science; Information Science & Library Science; Social Sciences
- Other Topics
GA CD4KS
UT WOS:000351051900005
ER
PT J
AU Goswami, R
Bernstein, N
AF Goswami, R.
Bernstein, N.
TI Effect of interfaces of grain boundary Al2CuLi plates on fracture
behavior of Al-3Cu-2Li
SO ACTA MATERIALIA
LA English
DT Article
DE TEM; Grain boundary precipitates; Al-Li alloys; DFT simulation; Fracture
behavior
ID AL-LI ALLOYS; AUGMENTED-WAVE METHOD; MOLECULAR-DYNAMICS; HIGH-STRENGTH;
PRECIPITATION; DEFORMATION; AEROSPACE; PRODUCTS; SPACE
AB Transmission electron microscopy (TEM) and density functional theory (DFT) calculations were employed to investigate the interfacial characteristics and fracture behavior of Al-3Cu-2Li containing plate-like Al2CuLi (known as the T-1 phase) precipitates at grain boundaries. TEM studies showed that T-1 plates form at grain boundaries, with a coherent interface on one side parallel to the {1 1 1} planes of the matrix and a non-coherent interface with no preferred orientation relative to the grain on the other side. The low energy of the coherent interface leads to a serration of the grain boundaries due to the growth of the grain boundary T-1 phase. Under tensile loading, the intergranular T-1 phase leads to the formation of nanopores at the non-coherent side, and fracture mostly through the non-coherent grain boundary T-1/matrix interface for under-, peak- and over-aged conditions. DFT simulations showed that, under tensile loading, fracture is most likely to take place at the T-1/Al interface, and the non-coherent side of the grain boundary is weakest as the decohesion energy is 25% lower than that of the coherent interface. Published by Elsevier Ltd. on behalf of Acta Materialia Inc.
C1 [Goswami, R.; Bernstein, N.] Naval Res Lab, Div Mat Sci & Technol, Washington, DC 20375 USA.
RP Goswami, R (reprint author), Naval Res Lab, Div Mat Sci & Technol, Washington, DC 20375 USA.
EM ramasis.goswami@nrl.navy.mil
FU Office of Naval Research (ONR) through the Naval Research Laboratory's
6.1 Research Program; Office of Naval Research [N0001414WX00826]
FX Funding for this project was provided by the Office of Naval Research
(ONR) through the Naval Research Laboratory's 6.1 Research Program. R.G.
would like to thank Dr. L. Kabacoff, Office of Naval Research, for
funding under contract N0001414WX00826. Special thanks are due to Dr.
A.K. Vasudevan for providing technical guidance to this study. R.G. also
would like to thank Dr. Stanley Lynch, Dr. Henry Hollroyd, Dr. Julian M.
Rosalie and Dr. Ronald L. Holtz for helpful discussions. We would like
to thank Mr. Leroy Levenberry for his help with the heat treatments,
optical microscopy and EDM.
NR 36
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Z9 5
U1 9
U2 29
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 1359-6454
EI 1873-2453
J9 ACTA MATER
JI Acta Mater.
PD APR 1
PY 2015
VL 87
BP 399
EP 410
DI 10.1016/j.actamat.2014.12.025
PG 12
WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical
Engineering
SC Materials Science; Metallurgy & Metallurgical Engineering
GA CC6ZO
UT WOS:000350517700038
ER
PT J
AU Pietrosimone, B
McLeod, MM
Florea, D
Gribble, PA
Tevald, MA
AF Pietrosimone, Brian
McLeod, Michelle M.
Florea, David
Gribble, Phillip A.
Tevald, Michael A.
TI Immediate increases in quadriceps corticomotor excitability during an
electromyography biofeedback intervention
SO JOURNAL OF ELECTROMYOGRAPHY AND KINESIOLOGY
LA English
DT Article
DE Knee; Arthrogenic muscle inhibition; Rehabilitation
ID TRANSCRANIAL MAGNETIC STIMULATION; CRUCIATE LIGAMENT RECONSTRUCTION;
ARTHROGENIC MUSCLE INHIBITION; EXTERNAL FOCUS; ACTIVATION; STRENGTH;
REHABILITATION; FEEDBACK; OSTEOARTHRITIS; INSTRUCTIONS
AB The purpose of the study was to determine the effects of EMG-BF on vastus lateralis corticomotor excitability, measured via motor evoked potential (MEP) amplitudes elicited using Transcranial Magnetic Stimulation (TMS) during a maximal voluntary isometric contraction (MVIC). We also determined the effect of EMG-BF on isometric knee extensor strength. Fifteen healthy participants volunteered for this crossover study with two sessions held one-week apart. Participants were randomly assigned to condition order, during which five intervention MVICs were performed with or without EMG-BF. MEP amplitudes were collected with TMS during five knee extension contractions (5% of MVIC) at baseline and again during intervention MVICs within each session. During the control condition, participants were instructed to perform the same number of MVICs without any EMG-BF. Percent change scores were used to calculate the change in peak-to-peak MEP amplitudes that occurred during EMG-BF and Control MVICs compared to the baseline MEPs. Peak knee extension torque was recorded during MVICs prior to TMS for each condition. EMG-BF produced significantly increased MEP change scores and significantly greater torque than the control condition. The results of the current study suggest that EMG-BF may be a viable clinical method for targeting corticomotor excitability. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Pietrosimone, Brian] Univ N Carolina, Dept Exercise & Sport Sci, Chapel Hill, NC 27599 USA.
[McLeod, Michelle M.] Coll Charleston, Dept Hlth & Human Performance, Charleston, SC 29401 USA.
[Florea, David] US Naval Acad, Dept Athlet, Annapolis, MD 21402 USA.
[Gribble, Phillip A.] Univ Kentucky, Coll Hlth Sci, Lexington, KY USA.
[Tevald, Michael A.] Univ Toledo, Dept Rehabil Sci, Toledo, OH 43606 USA.
RP Pietrosimone, B (reprint author), Univ N Carolina, Dept Exercise & Sport Sci, Sports Med Res Lab, 210 South Rd Fetzer Hall,RM 032, Chapel Hill, NC 27599 USA.
EM brian@unc.edu
NR 37
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U1 5
U2 17
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 1050-6411
EI 1873-5711
J9 J ELECTROMYOGR KINES
JI J. Electromyogr. Kinesiol.
PD APR
PY 2015
VL 25
IS 2
BP 316
EP 322
DI 10.1016/j.jelekin.2014.11.007
PG 7
WC Neurosciences; Physiology; Rehabilitation; Sport Sciences
SC Neurosciences & Neurology; Physiology; Rehabilitation; Sport Sciences
GA CC6HH
UT WOS:000350465500016
PM 25561075
ER
PT J
AU Vurgaftman, I
Weih, R
Kamp, M
Meyer, JR
Canedy, CL
Kim, CS
Kim, M
Bewley, WW
Merritt, CD
Abell, J
Hofling, S
AF Vurgaftman, I.
Weih, R.
Kamp, M.
Meyer, J. R.
Canedy, C. L.
Kim, C. S.
Kim, M.
Bewley, W. W.
Merritt, C. D.
Abell, J.
Hoefling, S.
TI Interband cascade lasers
SO JOURNAL OF PHYSICS D-APPLIED PHYSICS
LA English
DT Article
DE mid-infrared lasers; semiconductor lasers; interband cascade lasers
ID MU-M; ROOM-TEMPERATURE; LOW-THRESHOLD; QUANTUM-WELLS; INAS/ALSB
SUPERLATTICES; SEMICONDUCTOR-LASER; MIDINFRARED LASERS; INFRARED-LASERS;
DIODE-LASERS; POWER
AB We review the current status of interband cascade lasers (ICLs) emitting in the midwave infrared (IR). The ICL may be considered the hybrid of a conventional diode laser that generates photons via electron-hole recombination, and an intersubband-based quantum cascade laser (QCL) that stacks multiple stages for enhanced current efficiency. Following a brief historical overview, we discuss theoretical aspects of the active region and core designs, growth by molecular beam epitaxy, and the processing of broad-area, narrow-ridge, and distributed feedback (DFB) devices. We then review the experimental performance of pulsed broad area ICLs, as well as the continuous-wave (cw) characteristics of narrow ridges having good beam quality and DFBs producing output in a single spectral mode. Because the threshold drive powers are far lower than those of QCLs throughout the lambda = 3-6 mu m spectral band, ICLs are increasingly viewed as the laser of choice for mid-IR laser spectroscopy applications that do not require high output power but need to be hand-portable and/or battery operated. Demonstrated ICL performance characteristics to date include threshold current densities as low as 106 A cm(-2) at room temperature (RT), cw threshold drive powers as low as 29 mW at RT, maximum cw operating temperatures as high as 118 degrees C, maximum cw output powers exceeding 400 mW at RT, maximum cw wallplug efficiencies as high as 18% at RT, maximum cw single-mode output powers as high as 55 mW at RT, and single-mode output at lambda = 5.2 mu m with a cw drive power of only 138 mW at RT.
C1 [Vurgaftman, I.; Meyer, J. R.; Canedy, C. L.; Kim, C. S.; Bewley, W. W.; Merritt, C. D.; Abell, J.] Naval Res Lab, Washington, DC 20375 USA.
[Hoefling, S.] Univ St Andrews, Sch Phys & Astron, St Andrews KY16 9SS, Fife, Scotland.
[Weih, R.; Kamp, M.; Hoefling, S.] Univ Wurzburg, Tech Phys, D-97074 Wurzburg, Germany.
[Kim, M.] Sotera Def Solut Inc, Columbia, MD 21046 USA.
RP Vurgaftman, I (reprint author), Naval Res Lab, Code 5613, Washington, DC 20375 USA.
EM vurgaftman@nrl.navy.mil
RI Kamp, Martin/G-9704-2011; Hofling, Sven/C-3140-2013
OI Kamp, Martin/0000-0002-7219-2297; Hofling, Sven/0000-0003-0034-4682
FU Office of Naval Research; European Union [318798]
FX NRL acknowledges support from the Office of Naval Research. UWUERZ is
grateful to the European Union for financial support of this work within
the FP7 project 'WideLase' (No. 318798). We also thank S. Kuhn, M.
Wagenbrenner, S. Handel, and T. Steinl for technical assistance.
NR 92
TC 38
Z9 38
U1 8
U2 60
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0022-3727
EI 1361-6463
J9 J PHYS D APPL PHYS
JI J. Phys. D-Appl. Phys.
PD APR 1
PY 2015
VL 48
IS 12
AR 123001
DI 10.1088/0022-3727/48/12/123001
PG 17
WC Physics, Applied
SC Physics
GA CD1GB
UT WOS:000350821700001
ER
PT J
AU Shattuck, NL
Matsangas, P
AF Shattuck, Nita Lewis
Matsangas, Panagiotis
TI Psychomotor vigilance performance predicted by Epworth Sleepiness Scale
scores in an operational setting with the United States Navy
SO JOURNAL OF SLEEP RESEARCH
LA English
DT Article
DE fatigue; fitness-for-duty; operational performance; shiftwork; sleep
deprivation
ID TEST PVT; DEPRIVATION; APNEA; VULNERABILITY; SENSITIVITY; DURATION;
VALIDITY
AB It is critical in operational environments to identify individuals who are at higher risk of psychomotor performance impairments. This study assesses the utility of the Epworth Sleepiness Scale for predicting degraded psychomotor vigilance performance in an operational environment. Active duty crewmembers of a USA Navy destroyer (N=69, age 21-54years) completed the Epworth Sleepiness Scale at the beginning of the data collection period. Participants wore actigraphs and completed sleep diaries for 11days. Psychomotor vigilance tests were administered throughout the data collection period using a 3-min version of the psychomotor vigilance test on the actigraphs. Crewmembers with elevated scores on the Epworth Sleepiness Scale (i.e. Epworth Sleepiness Scale >10) had 60% slower reaction times on average, and experienced at least 60% more lapses and false starts compared with individuals with normal Epworth Sleepiness Scale scores (i.e. Epworth Sleepiness Scale 10). Epworth Sleepiness Scale scores were correlated with daily time in bed (P<0.01), sleep (P<0.05), mean reaction time (P<0.001), response speed 1/reaction time (P<0.05), slowest 10% of response speed (P<0.001), lapses (P<0.01), and the sum of lapses and false starts (P<0.001). In this chronically sleep-deprived population, elevated Epworth Sleepiness Scale scores identified that subset of the population who experienced degraded psychomotor vigilance performance. We theorize that Epworth Sleepiness Scale scores are an indication of personal sleep debt that varies depending on one's individual sleep requirement. In the absence of direct performance metrics, we also advocate that the Epworth Sleepiness Scale can be used to determine the prevalence of excessive sleepiness (and thereby assess the risk of performance decrements).
C1 [Shattuck, Nita Lewis; Matsangas, Panagiotis] Naval Postgrad Sch, Dept Operat Res, Monterey, CA 93943 USA.
RP Shattuck, NL (reprint author), Naval Postgrad Sch, Dept Operat Res, 1411 Cunningham Dr, Monterey, CA 93943 USA.
EM nlshattu@nps.edu
FU Bureau of Navy; Twenty-First Century Sailor Office; Office of Naval
Personnel
FX The authors would like to acknowledge Dr Lauren Waggoner and LT Roger
Young, part of the team that participated in the data collection aboard
the USS JASON DUNHAM. The authors also acknowledge the funding support
of the Bureau of Navy, the Twenty-First Century Sailor Office, and the
Office of Naval Personnel. Finally, most sincere thanks go to CDR David
Bretz and CDR Michael Meredith, the commanding officers of the USS JASON
DUNHAM, and her crew-members who kindly consented to participate in this
study despite their considerable workload and fatigue levels. Each day,
you stand in harm's way to protect our nation and make our world safer.
Thank you all.
NR 33
TC 5
Z9 5
U1 0
U2 10
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0962-1105
EI 1365-2869
J9 J SLEEP RES
JI J. Sleep Res.
PD APR
PY 2015
VL 24
IS 2
BP 174
EP 180
DI 10.1111/jsr.12243
PG 7
WC Clinical Neurology; Neurosciences
SC Neurosciences & Neurology
GA CD0MF
UT WOS:000350767000008
PM 25273376
ER
PT J
AU Bansal, NP
Choi, SR
AF Bansal, Narottam P.
Choi, Sung R.
TI Properties of CMAS glass from desert sand
SO CERAMICS INTERNATIONAL
LA English
DT Article
DE CMAS; Mechanical properties; Thermal properties; Crystallization;
Viscosity
ID CALCIUM-MAGNESIUM-ALUMINOSILICATE; THERMAL BARRIER COATINGS;
CRYSTAL-GROWTH KINETICS; FRACTURE-TOUGHNESS; SEAL GLASS; CRYSTALLIZATION
KINETICS; TEMPERATURE; COMPOSITES; MECHANISMS; CERAMICS
AB X-ray diffraction analysis of as-received desert sand from a Middle East country showed the presence of quartz (SiO2), calcite (CaCO3), gypsum (CaSO4.2H(2)O), NaAlSi3O8, Mg-2(Al3.9Si5.1O18) and Mg3Al2(SiO4)(3) phases. A batch of as-received desert sand was melted into calcium magnesium aluminosilicate (CMAS) glass at similar to 1500 degrees C. From inductively coupled plasma-atomic emission spectrometry, chemical composition of the CMAS glass was analyzed to be 27.8CaO-4MgO-5Al(2)O(3)-61.6SiO(2)-0.6Fe(2)O(3)-1K(2)O (mole %). Various physical, thermal, and mechanical properties of the glass have been evaluated. Bulk density of CMAS glass was 2.69 g/cm(3), Young's modulus 92 GPa, Shear modulus 36 GPa, Poisson's ratio 0.28, dilatometric glass transition temperature (;) 706 degrees C, softening point (T-d) 764 degrees C, Vickers microhardness 6.3 +/- 0.4 GPa, indentation fracture toughness 0.75 +/- 0.15 MPa.m(1/2), and coefficient of thermal expansion (CTE) 9.8 x 10(-6)/degrees C in the temperature range 25 to 700 degrees C. Temperature dependence of viscosity has also been estimated from various reference points of the CMAS glass using the Vogel-FulcherTamman (VFT) equation as well as from the glass composition. The glass remained amorphous after heat treating at 850 degrees C for 10 h but crystallized into CaSiO3 and Ca2Mg0.5AlSi1.5O7 phases at 900 degrees C or higher temperatures. Crystallization kinetics of the CMAS glass has also been investigated by differential thermal analysis (DTA). Published by Elsevier Ltd and Techna Group S.r.l.
C1 [Bansal, Narottam P.] NASA, Mat & Struct Div, Glenn Res Ctr, Cleveland, OH 44135 USA.
[Choi, Sung R.] Naval Air Syst Command, Patuxent River, MD 20670 USA.
RP Bansal, NP (reprint author), NASA, Mat & Struct Div, Glenn Res Ctr, Cleveland, OH 44135 USA.
EM narottam.p.bansal@nasa.gov
FU NASA's Aeronautical Sciences Project; NAVAIR [SAA3-1260]
FX Desert sand was supplied by NAVAIR Thanks are due to Dr. Paul Angel, Dr.
Richard Rogers, Dr. Valerie Wiesner, Doug Doza, Ralph Pawlik, Derek
Johnson, Bob Angus, and Ray Babuder for technical assistance during this
work. This research was supported by NASA's Aeronautical Sciences
Project as well as by NAVAIR through a space act agreement (SAA3-1260).
NR 27
TC 5
Z9 6
U1 6
U2 30
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0272-8842
EI 1873-3956
J9 CERAM INT
JI Ceram. Int.
PD APR
PY 2015
VL 41
IS 3
BP 3901
EP 3909
DI 10.1016/j.ceramint.2014.11.072
PN A
PG 9
WC Materials Science, Ceramics
SC Materials Science
GA CC2QE
UT WOS:000350188900074
ER
PT J
AU Warren, TC
Troy, KK
AF Warren, T. Camber
Troy, Kevin K.
TI Explaining Violent Intra-Ethnic Conflict: Group Fragmentation in the
Shadow of State Power
SO JOURNAL OF CONFLICT RESOLUTION
LA English
DT Review
DE political violence; ethnic conflict; group size
ID CIVIL-WAR ONSET; GROUP-SIZE; HUMAN-RIGHTS; POLARIZATION; COOPERATION;
REBEL; FRACTIONALIZATION; DEFECTION; COMMUNITY; DEMOCRACY
AB Despite significant advances in the disaggregation of the study of civil conflict and intra-ethnic violence, intra-ethnic violence remains understudied. In this article, we present the first systematic, cross-national analysis of the conditions that promote violent, fragmentary conflict within politically active ethnic minorities. We propose a model of intra-ethnic conflict in which collective violence is produced by the interaction between subgroup entrepreneurs and the suppressive actions of the state. This two-level model predicts a curvilinear relationship between the relative size of an ethnic minority and its probability of experiencing large-scale intra-ethnic conflict. Additional hypotheses based on the proposed causal mechanism are also posited. These hypotheses are tested with data drawn from a global sample of politically active ethnic minorities, for the period 1990 through 2006, using a combination of parametric and semi-parametric regression techniques. The results strongly confirm the predicted curvilinear relationship while also demonstrating that the specific shape of this relationship shifts in predictable ways under varying social and political contexts.
C1 [Warren, T. Camber] Naval Postgrad Sch, Dept Def Anal, Monterey, CA USA.
RP Warren, TC (reprint author), Swiss Fed Inst Technol, Ctr Int & Comparat Studies CIS, Int Conflict Res Seilergraben 49, CH-8092 Zurich, Switzerland.
EM camberw@gmail.com
FU Niehaus Center for Globalization and Governance at Princeton University;
Center for "Coping with Crises in Complex Socio-Economic Systems" at ETH
Zurich
FX The author(s) disclosed receipt of the following financial support for
the research, authorship, and/or publication of this article: Portions
of this research were funded by support from the Niehaus Center for
Globalization and Governance at Princeton University, and the Center for
"Coping with Crises in Complex Socio-Economic Systems" at ETH Zurich.
Replication data and code are available at: www.camberwarren.net.
NR 101
TC 4
Z9 4
U1 3
U2 23
PU SAGE PUBLICATIONS INC
PI THOUSAND OAKS
PA 2455 TELLER RD, THOUSAND OAKS, CA 91320 USA
SN 0022-0027
EI 1552-8766
J9 J CONFLICT RESOLUT
JI J. Confl. Resolut.
PD APR
PY 2015
VL 59
IS 3
BP 484
EP 509
DI 10.1177/0022002713515400
PG 26
WC International Relations; Political Science
SC International Relations; Government & Law
GA CC6PV
UT WOS:000350489200005
ER
PT J
AU Miller, SP
Dunlap, BI
Fleischer, AS
AF Miller, Steven P.
Dunlap, Brett I.
Fleischer, Amy S.
TI Dopant Clustering and Correlated Oxygen Migration in Conditionally
Stabilized Zirconia Electrolytes
SO JOURNAL OF FUEL CELL SCIENCE AND TECHNOLOGY
LA English
DT Article
ID MOLECULAR-DYNAMICS SIMULATION; ELECTRICAL-CONDUCTIVITY;
IONIC-CONDUCTIVITY; FUEL-CELLS; YTTRIA; SCANDIA; DIFFUSION; SYSTEM;
MICROSTRUCTURE; DEGRADATION
AB Molecular dynamics (MD) simulation of yttria/scandia-stabilized zirconia (SSZ) with variably distributed Y/Sc dopant ions shows that energy is minimized when the dopants are uniformly spread apart, provided that the lattice maintains cubic fluorite symmetry. In contrast, highly clustered dopants are found to destabilize the cubic phase due to the presence of large regions of dopant-free zirconia. Computed oxygen diffusion coefficients and conductivity values consistently show that the Haven ratio is always less than one, indicating that correlation effects influence the motion of oxygen ions and vacancies. In addition, it is seen that the conductivity of crystals with noncubic symmetry is markedly anisotropic.
C1 [Miller, Steven P.] Naval Ship Syst Engn Stn, Philadelphia, PA 19112 USA.
[Dunlap, Brett I.] Naval Res Lab, Washington, DC 20375 USA.
[Fleischer, Amy S.] Villanova Univ, Dept Mech Engn, Villanova, PA 19085 USA.
RP Miller, SP (reprint author), Naval Ship Syst Engn Stn, 5001 South Broad St, Philadelphia, PA 19112 USA.
EM steven.p.miller3@navy.mil; brett.dunlap@nrl.navy.mil;
amy.fleischer@villanova.edu
OI Dunlap, Brett/0000-0003-1356-6559
FU Office of Naval Research; SMART Scholarship
FX This work was funded directly and indirectly by the Office of Naval
Research, including the SMART Scholarship program and computer time
provided by the DoD High Performance Computing Modernization Program,
particularly on the Iceberg server at the Naval Research Laboratory in
Washington, DC (NRL).
NR 40
TC 0
Z9 0
U1 0
U2 12
PU ASME
PI NEW YORK
PA TWO PARK AVE, NEW YORK, NY 10016-5990 USA
SN 1550-624X
EI 1551-6989
J9 J FUEL CELL SCI TECH
JI J. Fuel Cell Sci. Technol.
PD APR
PY 2015
VL 12
IS 2
AR 021003
DI 10.1115/1.4029082
PG 6
GA CC6RR
UT WOS:000350495700003
ER
PT J
AU Blair, SR
Kwon, YW
AF Blair, S. R.
Kwon, Y. W.
TI Modeling of Fluid-Structure Interaction Using Lattice Boltzmann and
Finite Element Methods
SO JOURNAL OF PRESSURE VESSEL TECHNOLOGY-TRANSACTIONS OF THE ASME
LA English
DT Article
ID IMMERSED-BOUNDARY METHOD; FLOWS; EQUATION
AB The use of lattice Boltzmann methods (LBMs) for fluid flow and its coupling with finite element method (FEM) structural models for fluid-structure interaction (FSI) are investigated. FSI modeling methodology and example applications are presented for single-component flows. Furthermore, multicomponent LBM fluid models are also studied with structural dynamics solvers for 2D FSI simulations. To enhance modeling capability for domains with complex surfaces, a novel coupling method is introduced that allows use of both classical LBM (CLBM) and a finite element LBM (FELBM) to be combined into a hybrid LBM (HLBM) that exploits the flexibility of FELBM while retaining the efficiency of CLBM.
C1 [Blair, S. R.] US Naval Acad, Dept Mech Engn, Annapolis, MD 21402 USA.
[Kwon, Y. W.] Naval Postgrad Sch, Dept Mech & Aerosp Engn, Monterey, CA 93943 USA.
RP Blair, SR (reprint author), US Naval Acad, Dept Mech Engn, Annapolis, MD 21402 USA.
EM sblair@usna.edu
NR 21
TC 0
Z9 0
U1 2
U2 15
PU ASME
PI NEW YORK
PA TWO PARK AVE, NEW YORK, NY 10016-5990 USA
SN 0094-9930
EI 1528-8978
J9 J PRESS VESS-T ASME
JI J. Press. Vessel Technol.-Trans. ASME
PD APR
PY 2015
VL 137
IS 2
AR 021302
DI 10.1115/1.4027866
PG 9
WC Engineering, Mechanical
SC Engineering
GA CC6FM
UT WOS:000350460400010
ER
PT J
AU Wilcox, LC
Stadler, G
Bui-Thanh, T
Ghattas, O
AF Wilcox, Lucas C.
Stadler, Georg
Bui-Thanh, Tan
Ghattas, Omar
TI Discretely Exact Derivatives for Hyperbolic PDE-Constrained Optimization
Problems Discretized by the Discontinuous Galerkin Method
SO JOURNAL OF SCIENTIFIC COMPUTING
LA English
DT Article
DE Discontinuous Galerkin; PDE-constrained optimization; Discrete adjoints;
Elastic wave equation; Maxwell's equations
ID EXACT BOUNDARY CONTROLLABILITY; PSEUDOSPECTRAL PENALTY SCHEME;
RUNGE-KUTTA METHODS; MAXWELLS EQUATIONS; ADJOINT APPROXIMATIONS;
WAVE-PROPAGATION; ELEMENT METHODS; DIFFERENTIATION; CONVERGENCE;
CONSISTENCY
AB This paper discusses the computation of derivatives for optimization problems governed by linear hyperbolic systems of partial differential equations (PDEs) that are discretized by the discontinuous Galerkin (dG) method. An efficient and accurate computation of these derivatives is important, for instance, in inverse problems and optimal control problems. This computation is usually based on an adjoint PDE system, and the question addressed in this paper is how the discretization of this adjoint system should relate to the dG discretization of the hyperbolic state equation. Adjoint-based derivatives can either be computed before or after discretization; these two options are often referred to as the optimize-then-discretize and discretize-then-optimize approaches. We discuss the relation between these two options for dG discretizations in space and Runge-Kutta time integration. The influence of different dG formulations and of numerical quadrature is discussed. Discretely exact discretizations for several hyperbolic optimization problems are derived, including the advection equation, Maxwell's equations and the coupled elastic-acoustic wave equation. We find that the discrete adjoint equation inherits a natural dG discretization from the discretization of the state equation and that the expressions for the discretely exact gradient often have to take into account contributions from element faces. For the coupled elastic-acoustic wave equation, the correctness and accuracy of our derivative expressions are illustrated by comparisons with finite difference gradients. The results show that a straightforward discretization of the continuous gradient differs from the discretely exact gradient, and thus is not consistent with the discretized objective. This inconsistency may cause difficulties in the convergence of gradient based algorithms for solving optimization problems.
C1 [Wilcox, Lucas C.] Naval Postgrad Sch, Dept Appl Math, Monterey, CA 93943 USA.
[Stadler, Georg; Bui-Thanh, Tan; Ghattas, Omar] Univ Texas Austin, Inst Computat Engn & Sci, Austin, TX 78712 USA.
[Bui-Thanh, Tan] Univ Texas Austin, Dept Aerosp Engn & Engn Mech, Austin, TX 78712 USA.
[Ghattas, Omar] Univ Texas Austin, Dept Mech Engn, Austin, TX 78712 USA.
[Ghattas, Omar] Univ Texas Austin, Jackson Sch Geosci, Austin, TX 78712 USA.
RP Wilcox, LC (reprint author), Naval Postgrad Sch, Dept Appl Math, Monterey, CA 93943 USA.
EM lwilcox@nps.edu
FU U.S. National Science Foundation (NSF) [CMMI-1028889]; Air Force Office
of Scientific Research's Computational Mathematics program
[FA9550-12-1-0484]; Mathematical Multifaceted Integrated Capability
Centers (MMICCs) effort within the Applied Mathematics activity of the
U.S. Department of Energy's Advanced Scientific Computing Research
program [DE-SC0009286]
FX We would like to thank Jeremy Kozdon and Gregor Gassner for fruitful
discussions and helpful comments, and Carsten Burstedde for his help
with the implementation of the numerical example presented in Sect. 4.
Support for this work was provided through the U.S. National Science
Foundation (NSF) grant CMMI-1028889, the Air Force Office of Scientific
Research's Computational Mathematics program under the grant
FA9550-12-1-0484, and through the Mathematical Multifaceted Integrated
Capability Centers (MMICCs) effort within the Applied Mathematics
activity of the U.S. Department of Energy's Advanced Scientific
Computing Research program, under Award Number DE-SC0009286. The views
expressed in this document are those of the authors and do not reflect
the official policy or position of the Department of Defense or the U.S.
Government.
NR 41
TC 1
Z9 1
U1 1
U2 5
PU SPRINGER/PLENUM PUBLISHERS
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0885-7474
EI 1573-7691
J9 J SCI COMPUT
JI J. Sci. Comput.
PD APR
PY 2015
VL 63
IS 1
BP 138
EP 162
DI 10.1007/s10915-014-9890-5
PG 25
WC Mathematics, Applied
SC Mathematics
GA CC3DL
UT WOS:000350225000006
ER
PT J
AU Sribanditmongkol, V
Neal, JL
Patrick, TE
Szalacha, LA
McCarthy, DO
AF Sribanditmongkol, Vorachai
Neal, Jeremy L.
Patrick, Thelma E.
Szalacha, Laura A.
McCarthy, Donna O.
TI Effect of Perceived Stress on Cytokine Production in Healthy College
Students
SO WESTERN JOURNAL OF NURSING RESEARCH
LA English
DT Article
DE stress; cytokines; influenza; glucocorticoid sensitivity
ID INFLUENZA VACCINATION; PSYCHOLOGICAL STRESS; ANTIBODY-RESPONSE;
UNITED-STATES; INFLAMMATION; SENSITIVITY; RESISTANCE; WOMEN; RISK
AB Chronic psychological stress impairs antibody synthesis following influenza vaccination. Chronic stress also increases circulating levels of proinflammatory cytokines and glucocorticoids in elders and caregivers, which can impair antibody synthesis. The purpose of this study was to determine whether psychological stress increases ex vivo cytokine production or decreases glucocorticoid sensitivity (GCS) of peripheral blood leukocytes from healthy college students. A convenience sample of Reserve Officer Training Corps (ROTC) students completed the Perceived Stress Scale (PSS). Whole blood was incubated in the presence of influenza vaccine and dexamethasone to evaluate production of interleukin-6 (IL-6), interleukin-1-beta (IL-1), tumor necrosis factor-alpha (TNF-), and interferon-gamma (IFN-). Multiple regression models controlling for age, gender, and grade point average revealed a negative relationship between PSS and GCS for vaccine-stimulated production of IL-1, IL-6, and TNF-. These data increase our understanding of the complex relationship between chronic stress and immune function.
C1 [Sribanditmongkol, Vorachai] Naval Med Ctr Portsmouth, Portsmouth, VA 23708 USA.
[Neal, Jeremy L.; Patrick, Thelma E.; Szalacha, Laura A.] Ohio State Univ, Columbus, OH 43210 USA.
[McCarthy, Donna O.] Marquette Univ, Milwaukee, WI 53233 USA.
RP Sribanditmongkol, V (reprint author), Naval Med Ctr Portsmouth, Nursing Res, 620 John Paul Circle, Portsmouth, VA 23708 USA.
EM Vorachai.Sribanditmongkol@med.navy.mil
FU Ohio State University College of Nursing Mildred E. Newton Endowment
Fund; Sigma Theta Tau International (Epsilon Chapter) Research Grant
Award
FX The author(s) disclosed receipt of the following financial support for
the research, authorship, and/or publication of this article: This work
was supported by The Ohio State University College of Nursing Mildred E.
Newton Endowment Fund (D.O.M.) and the Sigma Theta Tau International
(Epsilon Chapter) Research Grant Award.
NR 17
TC 0
Z9 0
U1 0
U2 12
PU SAGE PUBLICATIONS INC
PI THOUSAND OAKS
PA 2455 TELLER RD, THOUSAND OAKS, CA 91320 USA
SN 0193-9459
EI 1552-8456
J9 WESTERN J NURS RES
JI West. J. Nurs. Res.
PD APR
PY 2015
VL 37
IS 4
BP 481
EP 493
DI 10.1177/0193945914545658
PG 13
WC Nursing
SC Nursing
GA CC6NX
UT WOS:000350483300005
PM 25125502
ER
PT J
AU Sribanditmongkol, CDRV
AF Sribanditmongkol, C. D. R. Vorachai
TI Author Response to Letter to the Editor: Effect of Perceived Stress on
Cytokine Production in Healthy College Students
SO WESTERN JOURNAL OF NURSING RESEARCH
LA English
DT Letter
ID DEPRESSION; MECHANISMS; SCALE
C1 Naval Med Ctr Portsmouth, Portsmouth, VA 23708 USA.
RP Sribanditmongkol, CDRV (reprint author), Naval Med Ctr Portsmouth, Portsmouth, VA 23708 USA.
NR 9
TC 0
Z9 0
U1 0
U2 1
PU SAGE PUBLICATIONS INC
PI THOUSAND OAKS
PA 2455 TELLER RD, THOUSAND OAKS, CA 91320 USA
SN 0193-9459
EI 1552-8456
J9 WESTERN J NURS RES
JI West. J. Nurs. Res.
PD APR
PY 2015
VL 37
IS 4
BP 495
EP 497
DI 10.1177/0193945914561500
PG 3
WC Nursing
SC Nursing
GA CC6NX
UT WOS:000350483300007
ER
PT J
AU Chen, SZ
Tian, YL
AF Chen, Shizhi
Tian, YingLi
TI Pyramid of Spatial Relatons for Scene-Level Land Use Classification
SO IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
LA English
DT Article
DE Bag of words (BOW); geographical image classification; land use
classification; pyramid of spatial relatons (PSR); spatial pyramid
matching (SPM)
ID IMAGE CLASSIFICATION; URBAN-AREA; FEATURES; SIFT; CATEGORIES; RETRIEVAL;
KEYPOINTS; POINTS
AB Local feature with bag-of-words (BOW) representation has become one of the most popular approaches in object classification and image retrieval applications in the computer vision community. The recent efforts in the remote sensing community have demonstrated that the BOW approach can also effectively apply to geographic images for the applications of classification and retrieval. However, the BOW representation discards spatial information, which is critical for the remotely sensed land use classification. Several algorithms have incorporated spatial information into the BOWrepresentation by hard encoding coordinates of local features. Such rigid spatial encoding is not robust to translation and rotation variations, which are common characteristics of geographic images. To effectively incorporate spatial information into the BOW model for the land use classification, we propose a pyramid-of-spatial-relatons (PSR) model to capture both absolute and relative spatial relationships of local features. Unlike the conventional cooccurrence approach to describe pairwise spatial relationships between local features, the PSR model employs a novel concept of spatial relation to describe relative spatial relationship of a group of local features. As the result, the storage cost of the PSR model only linearly increases with the visual word codebook size instead of the quadratic relationship as in the cooccurrence approach. The PSR model is robust to translation and rotation variations and demonstrates excellent performance for the application of remotely sensed land use classification. On the Land Use and Land Cover image database, the PSR achieves 8% higher in the classification accuracy than the state of the art. If using only gray images, it outperforms the state of the art by more than 11%.
C1 [Chen, Shizhi; Tian, YingLi] CUNY City Coll, New York, NY 10031 USA.
[Tian, YingLi] CUNY, Grad Ctr, New York, NY 10031 USA.
RP Chen, SZ (reprint author), Naval Undersea Warfare Ctr, Newport, RI 02841 USA.
EM shizhi.chen@navy.mil; ytian@ccny.cuny.edu
FU Office of Naval Research [N000141310450]; Army Research Office
[W911NF-09-1-0565]
FX This work was supported in part by Office of Naval Research under Grant
N000141310450 and in part by Army Research Office under Grant
W911NF-09-1-0565.
NR 46
TC 34
Z9 36
U1 2
U2 71
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0196-2892
EI 1558-0644
J9 IEEE T GEOSCI REMOTE
JI IEEE Trans. Geosci. Remote Sensing
PD APR
PY 2015
VL 53
IS 4
BP 1947
EP 1957
DI 10.1109/TGRS.2014.2351395
PG 11
WC Geochemistry & Geophysics; Engineering, Electrical & Electronic; Remote
Sensing; Imaging Science & Photographic Technology
SC Geochemistry & Geophysics; Engineering; Remote Sensing; Imaging Science
& Photographic Technology
GA AR9NQ
UT WOS:000343902300023
ER
PT J
AU Choate, EP
Zhou, H
AF Choate, Eric P.
Zhou, Hong
TI OPTIMIZATION OF ELECTROMAGNETIC WAVE PROPAGATION THROUGH A LIQUID
CRYSTAL LAYER
SO DISCRETE AND CONTINUOUS DYNAMICAL SYSTEMS-SERIES S
LA English
DT Article
DE Electromagnetic wave; liquid crystal layer; anchoring conditions
ID TIME-DOMAIN METHOD; LIGHT-PROPAGATION; ANISOTROPIC MEDIA;
BEAM-PROPAGATION; DEVICES; OPTICS
AB We study the propagation of electromagnetic plane waves through a liquid crystal layer paying particular attention to the problem of optimizing the transmitted intensity. The controllable anisotropy of a liquid crystal layer, either through anchoring conditions on supporting glass plates sandwiching the layer or by the imposition of an external electromagnetic field, allows us to tune the orientation of the layer to maximize or minimize the transmitted intensity of a given wavelength through the layer. For a homogeneous liquid crystal orientation field, we find analytical formulas for the orientation that maximizes the transmission and discuss the circumstances under which we can make the layer effectively transparent for a given wavelength and the possibility of multiple maximizing orientations. The minimizing orientation is unique for a given wavelength, and we can define its value implicitly.
C1 [Choate, Eric P.; Zhou, Hong] Naval Postgrad Sch, Dept Appl Math, Monterey, CA 93943 USA.
RP Choate, EP (reprint author), Naval Postgrad Sch, Dept Appl Math, Monterey, CA 93943 USA.
EM echoate@nps.edu; hzhou@nps.edu
FU Office of Naval Research
FX This work was supported by a grant from the Office of Naval Research. It
was also conducted while the author Eric P. Choate held a National
Research Council Postdoctoral Research Associateship at the Department
of Applied Mathematics at the Naval Postgraduate School.
NR 12
TC 0
Z9 0
U1 1
U2 25
PU AMER INST MATHEMATICAL SCIENCES
PI SPRINGFIELD
PA PO BOX 2604, SPRINGFIELD, MO 65801-2604 USA
SN 1937-1632
EI 1937-1179
J9 DISCRETE CONT DYN-S
JI Discret. Contin. Dyn. Syst.-Ser. S
PD APR
PY 2015
VL 8
IS 2
BP 303
EP 312
DI 10.3934/dcdss.2015.8.303
PG 10
WC Mathematics, Applied
SC Mathematics
GA AQ8RM
UT WOS:000343098800005
ER
PT J
AU Moore, EZ
Murphy, KD
Rey, EG
Nichols, JM
AF Moore, Edward Z.
Murphy, Kevin D.
Rey, Elizabeth G.
Nichols, Jonathan M.
TI Modeling and identification of uniform corrosion damage on a thin plate
using a Bayesian framework
SO JOURNAL OF SOUND AND VIBRATION
LA English
DT Article
ID CRACKED PLATE; WAVE; VIBRATIONS; BEAM
AB Corrosion remains one of the primary mechanisms of structural degradation facing the civil and commercial infrastructure. In this study we consider the problem of estimating the degree of corrosion in a plate structure using only the structure's vibrational response to impact excitation. Specifically, a thin aluminum plate was twice placed in an accelerated corrosion environment resulting in varying levels of corrosion damage. At each damage level, the impulse response at three different locations was simultaneously measured with resistive strain gauges. From this data, a Ritz model with Timoshenko beam basis functions was used in a Bayesian framework to estimate the average plate thickness. The approach is first illustrated on a numerical model of the plate, and then applied to the experimental structural response. While the approach is able to accurately estimate the thickness of the "healthy" plate, the quality of the estimates degrades as the corrosion begins to alter the thickness in localized regions of the plate. This is reflected in the thickness estimates which show increasing variance with the degree of corrosion. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Moore, Edward Z.] Cent Connecticut State Univ, Dept Engn, New Britain, CT 06050 USA.
[Murphy, Kevin D.] Univ Louisville, Dept Mech Engn, Louisville, KY 40230 USA.
[Rey, Elizabeth G.] Univ Connecticut, Dept Mech Engn, Storrs, CT 06269 USA.
[Nichols, Jonathan M.] US Naval Res Lab, Washington, DC 20375 USA.
RP Moore, EZ (reprint author), Cent Connecticut State Univ, Dept Engn, New Britain, CT 06050 USA.
EM ned.moore@ccsu.edu
OI Rey, Elizabeth/0000-0003-1445-9982
NR 19
TC 0
Z9 0
U1 1
U2 8
PU ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
PI LONDON
PA 24-28 OVAL RD, LONDON NW1 7DX, ENGLAND
SN 0022-460X
EI 1095-8568
J9 J SOUND VIB
JI J. Sound Vibr.
PD MAR 31
PY 2015
VL 340
BP 112
EP 125
DI 10.1016/j.jsv.2014.11.013
PG 14
WC Acoustics; Engineering, Mechanical; Mechanics
SC Acoustics; Engineering; Mechanics
GA AZ1ZI
UT WOS:000348033500007
ER
PT J
AU Huba, JD
Wu, TW
Makela, JJ
AF Huba, J. D.
Wu, T-W.
Makela, J. J.
TI Electrostatic reconnection in the ionosphere
SO GEOPHYSICAL RESEARCH LETTERS
LA English
DT Article
DE equatorial ionosphere; equatorial spread F; equatorial plasma bubbles;
equatorial dynamics; electrostatic reconnection
ID EQUATORIAL SPREAD-F
AB Postsunset equatorial plasma bubble merging is examined using the National Research Laboratory code SAMI3/equatorial spread F. It is found that bubbles merge through an electrostatic reconnection process. As multiple bubbles develop, the electrostatic potential associated with one bubble can connect with that of a neighboring bubble: this provides a pathway for the low-density plasma in one bubble to flow into the adjoining bubble and merge with it. Additionally, high-speed plasma channels (approximately greater than hundreds of meters per second) can develop during the merging process. Optical data is presented of equatorial plasma bubble evolution that suggests bubble merging occurs in the nighttime equatorial ionosphere.
C1 [Huba, J. D.; Wu, T-W.] Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
[Makela, J. J.] Univ Illinois, Dept Elect & Comp Engn, Urbana, IL USA.
RP Huba, JD (reprint author), Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
EM huba@nrl.navy.mil
FU LWS NASA grant; NRL Base Funds; Office of Naval Research
[N00014-13-1-0350]
FX One of us (J.D.H.) thanks Dave Hysell for helpful discussions. The
research of J.D.H. and T.W.W. has been supported by an LWS NASA grant
and NRL Base Funds. Work at the University of Illinois was support by
the Office of Naval Research through grant N00014-13-1-0350. We thank
Dominique Reymond and colleagues at the Laboratories de Geophysique in
Tahiti for supporting the deployment of the PICASSO imaging system.
Modeling data are available from J.D.H. and optical data from J.J.M.
NR 26
TC 3
Z9 3
U1 0
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 MAR 28
PY 2015
VL 42
IS 6
BP 1626
EP 1631
DI 10.1002/2015GL063187
PG 6
WC Geosciences, Multidisciplinary
SC Geology
GA CG3HJ
UT WOS:000353170000002
ER
PT J
AU Collins, CO
Rogers, WE
Marchenko, A
Babanin, AV
AF Collins, Clarence O., III
Rogers, W. Erick
Marchenko, Aleksey
Babanin, Alexander V.
TI In situ measurements of an energetic wave event in the Arctic marginal
ice zone
SO GEOPHYSICAL RESEARCH LETTERS
LA English
DT Article
DE wave-ice interaction; spectral wave model; wind waves; Arctic; swell;
sea ice
ID SEA-ICE; OCEAN WAVES; PROPAGATION; MODEL; COVER; WATER; FIELDS; PACK;
BUOY; EDGE
AB R/V Lance serendipitously encountered an energetic wave event around 77 degrees N, 26 degrees E on 2 May 2010. Onboard GPS records, interpreted as the surface wave signal, show the largest waves recorded in the Arctic region with ice cover. Comparing the measurements with a spectral wave model indicated three phases of interaction: (1) wave blocking by ice, (2) strong attenuation of wave energy and fracturing of ice by wave forcing, and (3) uninhibited propagation of the peak waves and an extension of allowed waves to higher frequencies (above the peak). Wave properties during fracturing of ice cover indicated increased groupiness. Wave-ice interaction presented binary behavior: there was zero transmission in unbroken ice and total transmission in fractured ice. The fractured ice front traveled at some fraction of the wave group speed. Findings do not motivate new dissipation schemes for wave models, though they do indicate the need for two-way, wave-ice coupling.
C1 [Collins, Clarence O., III] Naval Res Lab, Hancock Cty, MS 39529 USA.
[Rogers, W. Erick] Naval Res Lab, Div Oceanog, Hancock Cty, MS USA.
[Marchenko, Aleksey] Univ Ctr Svalbard, Dept Arctic Technol, Longyearbyen, Norway.
[Babanin, Alexander V.] Swinburne Univ Technol, Ctr Ocean Engn Sci & Technol, Hawthorn, Vic 3122, Australia.
RP Collins, CO (reprint author), Naval Res Lab, Hancock Cty, MS 39529 USA.
EM Tripphysicist@gmail.com
RI Collins, Clarence/P-7384-2015;
OI Collins, Clarence/0000-0003-4553-616X; Babanin,
Alexander/0000-0002-8595-8204
FU ASEE postdoctoral fellowship at NRL-SSC; ONR [N0001413WX20825,
N000141310278]
FX Many thanks to the captain and crew of the R/V Lance. Travis Smith
helped with understanding the synoptic weather conditions. Ben Holt
(NASA JPL) generously provided that satellite imagery used in Figure 1a
and Figure S4 in the supporting information. We acknowledge the input
from two anonymous reviewers whose comments increased quality and
clarity of the manuscript. C.O.C. is supported by an ASEE postdoctoral
fellowship at NRL-SSC. The support of ONR grants N0001413WX20825 and
N000141310278 is acknowledged by W.E.R. and A.V.B., respectively. Raw
shipborne data used in this study may be obtained by contacting coauthor
A.M. by email: Aleksey.Marchenko@unis.no. The processed data used in the
figures can be obtained by contacting the first author. Several open
source MATLAB toolboxes were used during analysis and plotting including
WAFO, MACE, j_lab, and M_Map.
NR 44
TC 10
Z9 11
U1 0
U2 6
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 MAR 28
PY 2015
VL 42
IS 6
BP 1863
EP 1870
DI 10.1002/2015GL063063
PG 8
WC Geosciences, Multidisciplinary
SC Geology
GA CG3HJ
UT WOS:000353170000032
ER
PT J
AU Sorooshian, A
Prabhakar, G
Jonsson, H
Woods, RK
Flagan, RC
Seinfeld, JH
AF Sorooshian, Armin
Prabhakar, Gouri
Jonsson, Haflidi
Woods, Roy K.
Flagan, Richard C.
Seinfeld, John H.
TI On the presence of giant particles downwind of ships in the marine
boundary layer
SO GEOPHYSICAL RESEARCH LETTERS
LA English
DT Article
DE giant CCN; shipping; marine boundary layer; stratocumulus; sea salt;
aerosol
ID 2011 E-PEACE; CLOUD CONDENSATION NUCLEI; SEA-SALT AEROSOLS;
STRATOCUMULUS CLOUDS; EMISSIONS; IMPACT; OCEAN; PRECIPITATION;
ATMOSPHERE; CALIFORNIA
AB This study examines large oceangoing ships as a source of giant cloud condensation nuclei (D-p>2 mu m) due to wake and stack emissions off the California coast. Observed particle number concentrations behind 10 ships exceeded those in control areas, exhibiting number concentration enhancement ratios (ERs) for minimum threshold diameters of similar to 2, similar to 10, and similar to 20 mu m as high as 2.7, 5.5, and 7.5, respectively. ER decreases with increasing downwind distance and altitude. ER becomes better correlated with ship size variables (gross tonnage, length, and beam) as the minimum size threshold increases from 2 to 20 mu m, whereas ship speed has a less distinct relationship with ER. One case study of a container ship shows that there are higher concentrations of sea-salt tracer species behind it relative to adjacent control areas. These results have implications for cloud properties and precipitation in marine boundary layers exposed to ship traffic.
C1 [Sorooshian, Armin] Univ Arizona, Dept Chem & Environm Engn, Tucson, AZ 85721 USA.
[Sorooshian, Armin; Prabhakar, Gouri] Univ Arizona, Dept Atmospher Sci, Tucson, AZ USA.
[Jonsson, Haflidi; Woods, Roy K.] Naval Postgrad Sch, Monterey, CA USA.
[Flagan, Richard C.; Seinfeld, John H.] CALTECH, Dept Chem Engn, Pasadena, CA 91125 USA.
RP Sorooshian, A (reprint author), Univ Arizona, Dept Chem & Environm Engn, Tucson, AZ 85721 USA.
EM armin@email.arizona.edu
OI Sorooshian, Armin/0000-0002-2243-2264
FU ONR [N00014-11-1-0783, N00014-10-1-0200, N00014-04-1-0118,
N00014-10-1-0811]; NSF [AGS-1008848]
FX All data used can be obtained from the corresponding author. This work
was funded by ONR grants N00014-11-1-0783, N00014-10-1-0200,
N00014-04-1-0118, and N00014-10-1-0811 and NSF grant AGS-1008848. Zhen
Wang is acknowledged for her assistance with ship and satellite data.
NR 39
TC 2
Z9 2
U1 0
U2 21
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 MAR 28
PY 2015
VL 42
IS 6
BP 2024
EP 2030
DI 10.1002/2015GL063179
PG 7
WC Geosciences, Multidisciplinary
SC Geology
GA CG3HJ
UT WOS:000353170000052
ER
PT J
AU Alidoust, M
Halterman, K
AF Alidoust, Mohammad
Halterman, Klaus
TI Proximity induced vortices and long-range triplet supercurrents in
ferromagnetic Josephson junctions and spin valves
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID EXCHANGE FIELD; SUPERCONDUCTOR; HETEROSTRUCTURES; MAGNETORESISTANCE;
MAGNETIZATION; SPINTRONICS; INTERLAYER; STATE
AB Using a spin-parameterized quasiclassical Keldysh-Usadel technique, we theoretically study supercurrent transport in several types of diffusive ferromagnetic (F)/superconducting (S) configurations with differing magnetization textures. We separate out the even-and odd-frequency components of the supercurrent within the low proximity limit and identify the relative contributions from the singlet and triplet channels. We first consider inhomogeneous one-dimensional Josephson structures consisting of a uniform bilayer magnetic S/F/F/S structure and a trilayer S/F/F/F/S configuration, in which case the outer F layers can have either a uniform or conical texture relative to the central uniform F layer. Our results demonstrate that for supercurrents flowing perpendicular to the F/F interfaces, incorporating a conical texture yields the most effective way to observe the signatures of long-ranged spin-triplet supercurrents. We also consider three different types of finite-sized two-dimensional magnetic structures subjected to an applied magnetic field normal to the junction plane: a S/F/S junction with uniform magnetization texture and two S/F/F/S configurations with differing F/F bilayer arrangements. In one case, the F/F interface is parallel with the S/F junction interfaces while in the other case, the F/F junction is oriented perpendicular to the S/F interfaces. We then discuss the proximity vortices and corresponding spatial maps of currents inside the junctions. For the uniform S/F/S junction, we analytically calculate the magnetic field induced supercurrent and pair potential in both the narrow and wide junction regimes, thus providing insight into the variations in the Fraunhofer diffraction patterns and proximity vortices when transitioning from a wide junction to a narrow one. Our extensive computations demonstrate that the induced long-range spin-triplet supercurrents can deeply penetrate uniform F/F bilayers when spin-singlet supercurrents flow parallel to the F/F interfaces. This is in stark contrast to configurations where a spin-singlet supercurrent flows perpendicular to the F/F interfaces. We pinpoint the origin of the induced triplet and singlet correlations through spatial profiles of the decomposed total supercurrents. We find that the penetration of the long-range spin-triplet supercurrents associated with supercurrents flowing parallel to the F/F interfaces is more pronounced when the thicknesses of the F strips are unequal. Finally, if one of the S terminals is replaced with a finite-sized normal metal, we demonstrate that the corresponding experimentally accessible S/F/F/N spin valve presents an effective platform in which the predicted long-range effects can be effectively generated and probed. (C) 2015 AIP Publishing LLC.
C1 [Alidoust, Mohammad] Univ Basel, Dept Phys, CH-4056 Basel, Switzerland.
[Alidoust, Mohammad] Univ Isfahan, Fac Sci, Dept Phys, Esfahan 8174673441, Iran.
[Halterman, Klaus] Naval Air Warfare Ctr, Michelson Lab, Div Phys, China Lake, CA 93555 USA.
RP Alidoust, M (reprint author), Univ Basel, Dept Phys, Klingelbergstr 82, CH-4056 Basel, Switzerland.
EM phymalidoust@gmail.com; klaus.halterman@navy.mil
OI Halterman, Klaus/0000-0002-6355-3134; Alidoust,
Mohammad/0000-0002-1554-687X
FU ONR
FX We would like to thank G. Sewell for his valuable instructions in the
numerical parts of this work. We also appreciate N. O. Birge and F. S.
Bergeret for useful discussions and comments. K.H. was supported in part
by ONR and by a grant of supercomputer resources provided by the DOD
HPCMP.
NR 101
TC 16
Z9 17
U1 4
U2 18
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 MAR 28
PY 2015
VL 117
IS 12
AR 123906
DI 10.1063/1.4908287
PG 24
WC Physics, Applied
SC Physics
GA CF1OJ
UT WOS:000352315700012
ER
PT J
AU Matic, P
Geltmacher, A
Rath, B
AF Matic, Peter
Geltmacher, Andrew
Rath, Bhakta
TI Computational aspects of steel fracturing pertinent to naval
requirements
SO PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL
AND ENGINEERING SCIENCES
LA English
DT Article
DE ductile fracture; large strain plasticity; computational modelling;
fracture toughness; microvoids; image-based modelling
ID DUCTILE FRACTURE; SPATIAL-DISTRIBUTION; HY-100 STEEL; CRACK-GROWTH; WELD
DEFECT; DEFORMATION; TOUGHNESS; PERFORMANCE; NUCLEATION; PREDICTION
AB Modern high strength and ductile steels are a key element of US Navy ship structural technology. The development of these alloys spurred the development of modern structural integrity analysis methods over the past 70 years. Strength and ductility provided the designers and builders of navy surface ships and submarines with the opportunity to reduce ship structural weight, increase hull stiffness, increase damage resistance, improve construction practices and reduce maintenance costs. This paper reviews how analytical and computational tools, driving simulation methods and experimental techniques, were developed to provide ongoing insights into the material, damage and fracture characteristics of these alloys. The need to understand alloy fracture mechanics provided unique motivations to measure and model performance from structural to microstructural scales. This was done while accounting for the highly nonlinear behaviours of both materials and underlying fracture processes. Theoretical methods, data acquisition strategies, computational simulation and scientific imaging were applied to increasingly smaller scales and complex materials phenomena under deformation. Knowledge gained about fracture resistance was used to meet minimum fracture initiation, crack growth and crack arrest characteristics as part of overall structural integrity considerations.
C1 [Matic, Peter] Naval Res Lab, Mat Sci & Technol Div Code 6300, Washington, DC 20375 USA.
[Geltmacher, Andrew] Naval Res Lab, Imaging & Simulat Sect Code 6352, Washington, DC 20375 USA.
[Rath, Bhakta] Naval Res Lab, Mat Sci & Component Technol Directorate Code 6000, Washington, DC 20375 USA.
RP Matic, P (reprint author), Naval Res Lab, Mat Sci & Technol Div Code 6300, Washington, DC 20375 USA.
EM peter.matic@nrl.navy.mil
NR 59
TC 1
Z9 1
U1 2
U2 4
PU ROYAL SOC
PI LONDON
PA 6-9 CARLTON HOUSE TERRACE, LONDON SW1Y 5AG, ENGLAND
SN 1364-503X
EI 1471-2962
J9 PHILOS T R SOC A
JI Philos. Trans. R. Soc. A-Math. Phys. Eng. Sci.
PD MAR 28
PY 2015
VL 373
IS 2038
AR 20140127
DI 10.1098/rsta.2014.0127
PG 22
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA CD1IN
UT WOS:000350828400007
ER
PT J
AU Apel, EC
Hornbrook, RS
Hills, AJ
Blake, NJ
Barth, MC
Weinheimer, A
Cantrell, C
Rutledge, SA
Basarab, B
Crawford, J
Diskin, G
Homeyer, CR
Campos, T
Flocke, F
Fried, A
Blake, DR
Brune, W
Pollack, I
Peischl, J
Ryerson, T
Wennberg, PO
Crounse, JD
Wisthaler, A
Mikoviny, T
Huey, G
Heikes, B
O'Sullivan, D
Riemer, DD
AF Apel, E. C.
Hornbrook, R. S.
Hills, A. J.
Blake, N. J.
Barth, M. C.
Weinheimer, A.
Cantrell, C.
Rutledge, S. A.
Basarab, B.
Crawford, J.
Diskin, G.
Homeyer, C. R.
Campos, T.
Flocke, F.
Fried, A.
Blake, D. R.
Brune, W.
Pollack, I.
Peischl, J.
Ryerson, T.
Wennberg, P. O.
Crounse, J. D.
Wisthaler, A.
Mikoviny, T.
Huey, G.
Heikes, B.
O'Sullivan, D.
Riemer, D. D.
TI Upper tropospheric ozone production from lightning NOx-impacted
convection: Smoke ingestion case study from the DC3 campaign
SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
LA English
DT Article
DE storm convective outflow; biomass burning emission ratios; acrolein;
hydrogen cyanide (HCN); acetonitrile (CH3CN); deep convective cloud and
chemistry experiment (DC3)
ID VOLATILE ORGANIC-COMPOUNDS; MEXICO-CITY; CHEMICAL EVOLUTION; DEEP
CONVECTION; FIRE EMISSIONS; TRACE GASES; FOREST-FIRE; LOWER
STRATOSPHERE; HIGH-SENSITIVITY; AIR-POLLUTANTS
AB As part of the Deep Convective Cloud and Chemistry (DC3) experiment, the National Science Foundation/National Center for Atmospheric Research (NCAR) Gulfstream-V (GV) and NASA DC-8 research aircraft probed the chemical composition of the inflow and outflow of two convective storms (north storm, NS, south storm, SS) originating in the Colorado region on 22 June 2012, a time when the High Park wildfire was active in the area. A wide range of trace species were measured on board both aircraft including biomass burning (BB) tracers hydrogen cyanide (HCN) and acetonitrile (ACN). Acrolein, a much shorter lived tracer for BB, was also quantified on the GV. The data demonstrated that the NS had ingested fresh smoke from the High Park fire and as a consequence had a higher VOC OH reactivity than the SS. The SS lofted aged fire tracers along with other boundary layer ozone precursors and was more impacted by lightning NOx (LNOx) than the NS. The NCAR master mechanism box model was initialized with measurements made in the outflow of the two storms. The NS and SS were predicted to produce 11 and 14ppbv of O-3, respectively, downwind of the storm over 2days. Sensitivity tests revealed that the ozone production potential of the SS was highly dependent on LNOx. Normalized excess mixing ratios, X/CO, for HCN and ACN were determined in both the fire plume and the storm outflow and found to be 7.00.5 and 2.30.5pptvppbv(-1), respectively, and 1.40.3pptvppbv(-1) for acrolein in the outflow only.
C1 [Apel, E. C.; Hornbrook, R. S.; Hills, A. J.; Barth, M. C.; Weinheimer, A.; Homeyer, C. R.; Campos, T.; Flocke, F.] Natl Ctr Atmospher Res, Div Atmospher Chem, Boulder, CO 80307 USA.
[Blake, N. J.; Blake, D. R.] Univ Calif Irvine, Sch Phys Sci, Irvine, CA USA.
[Cantrell, C.; Fried, A.] Univ Colorado, Dept Atmospher & Ocean Sci, Boulder, CO 80309 USA.
[Rutledge, S. A.; Basarab, B.] Colorado State Univ, Dept Atmospher Sci, Ft Collins, CO 80523 USA.
[Crawford, J.; Diskin, G.] NASA, Langley Res Ctr, Hampton, VA 23665 USA.
[Brune, W.] Penn State Univ, Dept Meteorol, University Pk, PA 16802 USA.
[Pollack, I.; Peischl, J.; Ryerson, T.] NOAA, Div Chem Sci, Earth Syst Res Lab, Boulder, CO USA.
[Wennberg, P. O.; Crounse, J. D.] CALTECH, Div Geol & Planetary Sci, Pasadena, CA 91125 USA.
[Wisthaler, A.; Mikoviny, T.] Univ Oslo, Dept Chem, Oslo, Norway.
[Wisthaler, A.; Mikoviny, T.] Univ Innsbruck, Inst Ion Phys & Appl Phys, A-6020 Innsbruck, Austria.
[Huey, G.] Georgia Inst Technol, Sch Earth & Atmospher Sci, Atlanta, GA 30332 USA.
[Heikes, B.] Univ Rhode Isl, Grad Sch Oceanog, Kingston, RI 02881 USA.
[O'Sullivan, D.] US Naval Acad, Dept Chem, Annapolis, MD 21402 USA.
[Riemer, D. D.] Univ Miami, Rosenstiel Sch Marine & Atmospher Sci, Coral Gables, FL 33124 USA.
RP Apel, EC (reprint author), Natl Ctr Atmospher Res, Div Atmospher Chem, Boulder, CO 80307 USA.
EM apel@ucar.edu
RI Peischl, Jeff/E-7454-2010; Homeyer, Cameron/D-5034-2013; Ryerson,
Tom/C-9611-2009; Pollack, Ilana/F-9875-2012; Manager, CSD
Publications/B-2789-2015; Crounse, John/C-3700-2014;
OI Peischl, Jeff/0000-0002-9320-7101; Homeyer, Cameron/0000-0002-4883-6670;
Crounse, John/0000-0001-5443-729X; Hornbrook,
Rebecca/0000-0002-6304-6554
FU National Science Foundation
FX The data used in this paper are available from
http://www-air.larc.nasa.gov/cgi-bin/ArcView/dc3-seac4rs and
http://catalog.eol.ucar.edu/dc3_2012/index.html. The NCAR MM can be
downloaded from the NCAR community data portal (http://cdp.ucar.edu/).
The authors thank the crew and support team of the NSF/NCAR GV aircraft
and Christine Wiedinmyer, Jeff Stith, and Shawn Honomichl for their
helpful comments and discussion. The National Center for Atmospheric
Research is sponsored by the National Science Foundation. Any opinions,
findings, and conclusions or recommendations expressed in the
publication are those of the authors and do not necessarily reflect the
views of the National Science Foundation.
NR 88
TC 14
Z9 14
U1 3
U2 70
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 MAR 27
PY 2015
VL 120
IS 6
BP 2505
EP 2523
DI 10.1002/2014JD022121
PG 19
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA CG1UZ
UT WOS:000353061800022
ER
PT J
AU Radin, JM
Hawksworth, AW
Ortiguerra, RG
Brice, GT
AF Radin, Jennifer M.
Hawksworth, Anthony W.
Ortiguerra, Ryan G.
Brice, Gary T.
TI Seroprotective Antibodies to 2011 Variant Influenza A(H3N2v) and
Seasonal Influenza A(H3N2) among Three Age Groups of US Department of
Defense Service Members
SO PLOS ONE
LA English
DT Article
ID LONG-TERM IMMUNOGENICITY; UNITED-STATES; HUMAN INFECTIONS;
IMMUNE-RESPONSE; H1N1 2009; VACCINE; VIRUS; ADULTS; EFFICACY; H3N2V
AB Background
In 2011, a new variant of influenza A(H3N2) emerged that contained a recombination of genes from swine H3N2 viruses and the matrix (M) gene of influenza A(H1N1)pdm09 virus. New combinations and variants of pre-existing influenza viruses are worrisome if there is low or nonexistent immunity in a population, which increases chances for an outbreak or pandemic.
Methods
Sera collected in 2011 were obtained from US Department of Defense service members in three age groups: 19-21 years, 32-33 years, and 47-48 years. Pre- and post-vaccination samples were available for the youngest age group, and postvaccination samples for the two older groups. Specimens were tested using microneutralization assays for antibody titers against H3N2v (A/Indiana/10/2011) and seasonal H3N2 virus (A/Perth/16/2009).
Results
The youngest age group had significantly (p<0.05) higher geometric mean titers for H3N2v with 165 (95% confidence interval [CI]: 105-225) compared with the two older groups, aged 32-33 and 47-48 years, who had geometric mean titers of 68 (95% CI: 55-82) and 46 (95% CI: 24-65), respectively. Similarly, the youngest age group also had the highest geometric mean titers for seasonal H3N2. In the youngest age group, the proportion of patients who seroconverted after vaccination was 12% for H3N2v and 27% for seasonal H3N2.
Discussion
Our results were similar to previous studies that found highest seroprotection among young adults and decreasing titers among older adults. The proportion of 19- to 21-year-olds who seroconverted after seasonal vaccination was low and similar to previous findings. Improving our understanding of H3N2v immunity among different age groups in the United States can help inform vaccination plans if H3N2v becomes more transmissible in the future.
C1 [Radin, Jennifer M.; Hawksworth, Anthony W.; Ortiguerra, Ryan G.; Brice, Gary T.] Naval Hlth Res Ctr, Operat Infect Dis Dept, San Diego, CA 92106 USA.
RP Radin, JM (reprint author), Naval Hlth Res Ctr, Operat Infect Dis Dept, San Diego, CA 92106 USA.
EM jennifer.radin@med.navy.mil
FU Department of Defense Global Emerging Infections Surveillance and
Response System under Work Unit [60805]; US Government
FX Report number 14-29, supported by Department of Defense Global Emerging
Infections Surveillance and Response System under Work Unit No. 60805.
The funders had no role in study design, data collection and analysis,
decision to publish, or preparation of the manuscript. Dr. Jennifer
Radin, Mr. Anthony Hawksworth, and Mr. Ryan Ortiguerra are employed by
The Henry M. Jackson Foundation for the Advancement of Military
Medicine, Inc. and are funded to do this work by the US Government. CDR
Gary Brice is a military service member. 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, or the US Government. Approved for public release; distribution
is unlimited. US Government Work (17 USC 105). Not copyrighted in the
US. This research has been conducted in compliance with all applicable
federal regulations governing the protection of human subjects in
research (Protocol NHRC.2013.0025).
NR 28
TC 0
Z9 0
U1 0
U2 0
PU PUBLIC LIBRARY SCIENCE
PI SAN FRANCISCO
PA 1160 BATTERY STREET, STE 100, SAN FRANCISCO, CA 94111 USA
SN 1932-6203
J9 PLOS ONE
JI PLoS One
PD MAR 27
PY 2015
VL 10
IS 3
AR e0121037
DI 10.1371/journal.pone.0121037
PG 9
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA CE8ZT
UT WOS:000352133600061
PM 25816244
ER
PT J
AU Lindsay, L
Broido, DA
Carrete, J
Mingo, N
Reinecke, TL
AF Lindsay, L.
Broido, D. A.
Carrete, Jesus
Mingo, Natalio
Reinecke, T. L.
TI Anomalous pressure dependence of thermal conductivities of large mass
ratio compounds
SO PHYSICAL REVIEW B
LA English
DT Article
ID PHASE-TRANSFORMATION; MAGNESIUM OXIDE; PHONONS; AMORPHIZATION; CRYSTALS;
EQUATION; MGO
AB The lattice thermal conductivities (kappa) of binary compound materials are examined as a function of hydrostatic pressure P using a first-principles approach. Compounds with relatively small mass ratios, such as MgO, show an increase in kappa with P, consistent with measurements. Conversely, compounds with large mass ratios that create significant frequency gaps between acoustic and optic phonons (e.g., BSb, BAs, BeTe, BeSe) exhibit decreasing. with increasing P, a behavior that cannot be understood using simple theories of kappa. This anomalous P dependence of kappa arises from the fundamentally different nature of the intrinsic scattering processes for heat-carrying acoustic phonons in large mass ratio compounds compared to those with small mass ratios. This work demonstrates the power of first-principles methods for thermal properties and advances a broad paradigm for understanding thermal transport in nonmetals.
C1 [Lindsay, L.] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA.
[Broido, D. A.] Boston Coll, Dept Phys, Chestnut Hill, MA 02467 USA.
[Carrete, Jesus; Mingo, Natalio] CEA Grenoble, LITEN, F-38054 Grenoble 9, France.
[Reinecke, T. L.] Naval Res Lab, Washington, DC 20375 USA.
RP Lindsay, L (reprint author), Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA.
RI Lindsay, Lucas/C-9221-2012; Carrete Montana, Jesus/G-9490-2012
OI Lindsay, Lucas/0000-0001-9645-7993; Carrete Montana,
Jesus/0000-0003-0971-1098
FU National Science Foundation [1402949]; ONR [N00014-13-1-0234]; Institut
Carnot through project SIEVE; DARPA; U.S. Department of Energy, Office
of Science, Office of Basic Energy Sciences, Materials Sciences and
Engineering Division
FX L.L. acknowledges support from the U.S. Department of Energy, Office of
Science, Office of Basic Energy Sciences, Materials Sciences and
Engineering Division for work done at ORNL. D.A.B. acknowledges support
from the National Science Foundation under Grant No. 1402949 and from
ONR under Grant No. N00014-13-1-0234. N.M. and J.C. acknowledge support
from Institut Carnot through project SIEVE. T.L.R. acknowledges support
from ONR and DARPA. We thank David Cahill and Greg Hohensee for
providing the impurity concentrations in their MgO sample. We also thank
Saikat Mukhopadhyay and Derek Stewart for kindly providing us with their
calculated anharmonic IFCs for BN.
NR 43
TC 6
Z9 6
U1 5
U2 36
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 MAR 27
PY 2015
VL 91
IS 12
AR 121202
DI 10.1103/PhysRevB.91.121202
PG 5
WC Physics, Condensed Matter
SC Physics
GA CE3NK
UT WOS:000351733100001
ER
PT J
AU Schweigert, IV
AF Schweigert, Igor V.
TI Ab Initio Molecular Dynamics of High-Temperature Unimolecular
Dissociation of Gas-Phase RDX and Its Dissociation Products
SO JOURNAL OF PHYSICAL CHEMISTRY A
LA English
DT Article
ID HETEROGENEOUS ENERGETIC MATERIALS; WAVE INDUCED DECOMPOSITION; QC-SCF
METHOD; THERMAL-DECOMPOSITION; BASIS-SETS; CLASSICAL DYNAMICS;
CHEMICAL-REACTIONS; ORBITAL METHODS; MELTING-POINT; EXPLOSIVES
AB Unimolecular dynamics of gas-phase hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) and its dissociation products were simulated using density functional theory (DFT) at the M06-L level. The simulations of RDX at 2000 K showed that dissociation proceeds from multiple conformers, mostly via homolytic fission of an N-N bond with a minor contribution from elimination of HONO, in agreement with previous transition state theory calculations. However, the simulations of the fission and elimination products revealed that secondary N-N fission is facile and, at the simulated temperature of 1750 K, dominant over other mechanisms. The simulations of the resulting intermediates revealed a number of new unimolecular pathways that have not been previously considered. The transition structures and minimal energy paths were calculated for all reactions to confirm these observations. Based on these findings, a revised set of the unimolecular reactions contributing to gas-phase RDX decomposition is proposed.
C1 US Navy, Res Lab, Theoret Chem Sect, Code 6189, Washington, DC 20375 USA.
RP Schweigert, IV (reprint author), US Navy, Res Lab, Theoret Chem Sect, Code 6189, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM igor.schweigert@nrl.navy.mil
RI Schweigert, Igor/B-5750-2008
FU Office of Naval Research; Naval Research Laboratory; Department of
Defense High Performance Computing Modernization Program Software
Application Institute for Multiscale Reactive Modeling of Insensitive
Munitions
FX The author thanks the anonymous reviewers for critical comments, which
were helpful in revising the manuscript. This work was supported by the
Office of Naval Research, both directly and through the Naval Research
Laboratory, and by the Department of Defense High Performance Computing
Modernization Program Software Application Institute for Multiscale
Reactive Modeling of Insensitive Munitions.
NR 71
TC 5
Z9 5
U1 9
U2 32
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1089-5639
J9 J PHYS CHEM A
JI J. Phys. Chem. A
PD MAR 26
PY 2015
VL 119
IS 12
BP 2747
EP 2759
DI 10.1021/jp510034p
PG 13
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA CE6TP
UT WOS:000351971400002
PM 25738393
ER
PT J
AU Majola, SNT
Hartley, DJ
Riedinger, LL
Sharpey-Schafer, JF
Allmond, JM
Beausang, C
Carpenter, MP
Chiara, CJ
Cooper, N
Curien, D
Gall, BJP
Garrett, PE
Janssens, RVF
Kondev, FG
Kulp, WD
Lauritsen, T
McCutchan, EA
Miller, D
Piot, J
Redon, N
Riley, MA
Simpson, J
Stefanescu, I
Werner, V
Wang, X
Wood, JL
Yu, CH
Zhu, S
AF Majola, S. N. T.
Hartley, D. J.
Riedinger, L. L.
Sharpey-Schafer, J. F.
Allmond, J. M.
Beausang, C.
Carpenter, M. P.
Chiara, C. J.
Cooper, N.
Curien, D.
Gall, B. J. P.
Garrett, P. E.
Janssens, R. V. F.
Kondev, F. G.
Kulp, W. D.
Lauritsen, T.
McCutchan, E. A.
Miller, D.
Piot, J.
Redon, N.
Riley, M. A.
Simpson, J.
Stefanescu, I.
Werner, V.
Wang, X.
Wood, J. L.
Yu, C. -H.
Zhu, S.
TI Observation of gamma vibrations and alignments built on non-ground-state
configurations in Dy-156
SO PHYSICAL REVIEW C
LA English
DT Article
ID BAND-CROSSING FREQUENCIES; PROJECTED SHELL-MODEL; HIGH-SPIN; ROTATIONAL
BANDS; DEFORMED-NUCLEI; QUASI-PARTICLE; REGION; ER-164; GD-154;
SPECTROSCOPY
AB The exact nature of the lowest K-pi = 2(+) rotational bands in all deformed nuclei remains obscure. Traditionally they are assumed to be collective vibrations of the nuclear shape in the. degree of freedom perpendicular to the nuclear symmetry axis. Very few such. bands have been traced past the usual backbending rotational alignments of high-j nucleons. We have investigated the structure of positive-parity bands in the N = 90 nucleus Dy-156, using the Nd-148(C-12,4n) Dy-156 reaction at 65 MeV, observing the resulting. gamma-ray transitions with the Gammasphere array. The even-and odd-spin members of the K-pi = 2(+)gamma band are observed up to 32(+) and 31(+), respectively. This rotational band faithfully tracks the ground-state configuration to the highest spins. The members of a possible. vibration built on the aligned yrast S band are observed up to spins 28(+) and 27(+). An even-spin positive-parity band, observed up to spin 24(+), is a candidate for an aligned S band built on the seniority-zero configuration of the 0(2)(+) state at 676 keV. The crossing of this band with the 0(2)(+) band is at h omega(c) = 0.28(1) MeV and is consistent with the configuration of the 0(2)(+) band not producing any blocking of the monopole pairing.
C1 [Majola, S. N. T.] Natl Res Fdn, iThemba LABS, ZA-7129 Somerset West, South Africa.
[Majola, S. N. T.] Univ Cape Town, Dept Phys, ZA-7701 Rondebosch, South Africa.
[Hartley, D. J.] US Naval Acad, Dept Phys, Annapolis, MD 21402 USA.
[Riedinger, L. L.; Miller, D.] Univ Tennessee, Dept Phys, Knoxville, TN 37996 USA.
[Sharpey-Schafer, J. F.] Univ Western Cape, Dept Phys, ZA-7535 Bellville, South Africa.
[Allmond, J. M.; Beausang, C.] Univ Richmond, Dept Phys, Richmond, VA 23173 USA.
[Carpenter, M. P.; Janssens, R. V. F.; Lauritsen, T.; McCutchan, E. A.; Stefanescu, I.; Zhu, S.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
[Chiara, C. J.; Kondev, F. G.] Argonne Natl Lab, Nucl Engn Div, Argonne, IL 60439 USA.
[Cooper, N.; Werner, V.] Yale Univ, Wright Nucl Struct Lab, New Haven, CT 06520 USA.
[Curien, D.; Gall, B. J. P.; Piot, J.] Univ Strasbourg, IPHC, F-67037 Strasbourg, France.
[Curien, D.; Gall, B. J. P.; Piot, J.] CNRS, UMR7178, F-67037 Strasbourg, France.
[Garrett, P. E.] Univ Guelph, Dept Phys, Guelph, ON N1G 2W1, Canada.
[Kulp, W. D.; Wood, J. L.] Georgia Inst Technol, Sch Phys, Atlanta, GA 30332 USA.
[McCutchan, E. A.] Brookhaven Natl Lab, Natl Nucl Data Ctr, Upton, NY 11973 USA.
[Redon, N.] CNRS, IN2P3, Inst Phys Nucl Lyon, F-69622 Villeurbanne, France.
[Riley, M. A.; Wang, X.] Florida State Univ, Dept Phys, Tallahassee, FL 32306 USA.
[Simpson, J.] STFC, Daresbury Lab, Warrington WA4 4AD, Cheshire, England.
[Allmond, J. M.; Yu, C. -H.] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
RP Majola, SNT (reprint author), Natl Res Fdn, iThemba LABS, POB 722, ZA-7129 Somerset West, South Africa.
EM majola@tlabs.ac.za
RI Carpenter, Michael/E-4287-2015; Miller, David/B-5372-2012; Werner,
Volker/C-1181-2017
OI Carpenter, Michael/0000-0002-3237-5734; Miller,
David/0000-0002-0426-974X; Werner, Volker/0000-0003-4001-0150
FU U.S. National Science Foundation [PHY-1203100, PHY-0754674]; U.S.
Department of Energy, Office of Nuclear of Nuclear Physics
[DE-AC02-06CH11357, DE-FG02-91ER40609]; Joyce Frances Adlard Cultural
Fund; South African National Research Foundation
FX We would like to thank the crew of the ANL ATLAS accelerator for
delivering a very stable and clean beam. The authors also thank the ANL
operations staff at Gammasphere and gratefully acknowledge the efforts
of J. P. Green for target preparation. In addition we thank D. Radford
for software support and S. Aberg for constructive discussions. This
work was funded by the U.S. National Science Foundation under Grants No.
PHY-1203100 (USNA) and No. PHY-0754674 (FSU) as well as by the U.S.
Department of Energy, Office of Nuclear of Nuclear Physics, under
Contracts No. DE-AC02-06CH11357 (ANL) and No. DE-FG02-91ER40609 (Yale).
One of us J.F.S.-S. would like to thank the Joyce Frances Adlard
Cultural Fund for support. S.N.T.M. acknowledges a postgraduate grant
from the South African National Research Foundation and thanks the
library staff of iThemba LABS for considerable help.
NR 59
TC 3
Z9 3
U1 1
U2 3
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 2469-9985
EI 2469-9993
J9 PHYS REV C
JI Phys. Rev. C
PD MAR 26
PY 2015
VL 91
IS 3
AR 034330
DI 10.1103/PhysRevC.91.034330
PG 9
WC Physics, Nuclear
SC Physics
GA CE7LR
UT WOS:000352022400002
ER
PT J
AU Williams, EG
Roux, P
Rupin, M
Kuperman, WA
AF Williams, Earl G.
Roux, Philippe
Rupin, Matthieu
Kuperman, W. A.
TI Theory of multiresonant metamaterials for A(0) Lamb waves
SO PHYSICAL REVIEW B
LA English
DT Article
AB We develop an analytical wave approach to describe the physics properties of multiresonant metamaterials for Lamb waves propagating in plates. The metamaterial that we characterize consists of a 10 by 10 uniform, periodic array of long rods attached to the surface of the plate that forms the substrate in which antisymmetric A(0) Lamb waves are excited. We show that the A(0) Lamb wave propagation through the metamaterial can be accurately modeled using a simplified theory that replaces the two-dimensional array with a one-dimensional beam with a linear array of 10 rods. The wave propagation problem is solved rigorously for this one-dimensional system using the scattering matrix for a single rod. The exact eigenvalues of the system are approximated in a long wavelength expansion to determine a simple expression for the effective wave number and dispersion of the metamaterial. The modeled dispersion is compared with an experimental measurement of the dispersion inside the metamaterial with excellent agreement. The multiresonant rods, restricted to longitudinal vibration consistent with A(0) Lamb waves excited in the plate, produce two wide stop bands in the frequency domain from 0 to 10 kHz where the stop or passband boundaries align with the minima and maxima of the rod's impedance. We show that a negative effective density is obtained in the stop band. With the simple yet highly accurate relations given in this paper we have a tool to develop more complex metamaterials with rods and plates of different properties.
C1 [Williams, Earl G.] Naval Res Lab, Acoust Div, Washington, DC 20375 USA.
[Roux, Philippe; Rupin, Matthieu] Univ Grenoble 1, Inst Sci Terre, UMR 5275, F-38000 Grenoble, France.
[Kuperman, W. A.] Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92093 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
RI roux, philippe/B-8538-2014
FU Office of Naval Research
FX E.G.W. acknowledges support from the Office of Naval Research.
NR 27
TC 8
Z9 8
U1 0
U2 18
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 MAR 23
PY 2015
VL 91
IS 10
AR 104307
DI 10.1103/PhysRevB.91.104307
PG 12
WC Physics, Condensed Matter
SC Physics
GA CE0QH
UT WOS:000351509000003
ER
PT J
AU Guild, MD
Garcia-Chocano, VM
Kan, WW
Sanchez-Dehesa, J
AF Guild, Matthew D.
Garcia-Chocano, Victor M.
Kan, Weiwei
Sanchez-Dehesa, Jose
TI Acoustic metamaterial absorbers based on multilayered sonic crystals
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID EFFECTIVE-MASS DENSITY; CHARACTERISTIC IMPEDANCE; SOUND-PROPAGATION;
FIBROUS MATERIALS; BAND-STRUCTURE; CYLINDERS; FLUID; NUMBERS; FLOW; AIR
AB Through the use of a layered arrangement, it is shown that lossy sonic crystals can be arranged to create a structure with extreme acoustic properties, namely, an acoustic metamaterial. This artificial structure shows different effective fluids and absorptive properties in different orientations. Theoretical, numerical, and experimental results examining thermoviscous losses in sonic crystals are presented, enabling the fabrication and characterization of an acoustic metamaterial absorber with complex-valued anisotropic inertia. To accurately describe and fabricate such an acoustic metamaterial in a realizable experimental configuration, confining structures are needed which modify the effective properties, due to the thermal and viscous boundary layer effects within the sonic crystal lattice. Theoretical formulations are presented which describe the effects of these confined sonic crystals, both individually and as part of an acoustic metamaterial structure. Experimental demonstrations are also reported using an acoustic impedance tube. The formulations developed can be written with no unknown or empirical coefficients, due to the structured lattice of the sonic crystals and organized layering scheme; and it is shown that higher filling fraction arrangements can be used to provide a large enhancement in the loss factor. (C) 2015 AIP Publishing LLC.
C1 [Guild, Matthew D.; Garcia-Chocano, Victor M.; Sanchez-Dehesa, Jose] Univ Politecn Valencia, Grp Fenomenos Ondulatorios, Dept Ingn Elect, E-46022 Valencia, Spain.
[Kan, Weiwei] Nanjing Univ, Dept Phys, Key Lab Modern Acoust, MOE,Inst Acoust, Nanjing 210093, Jiangsu, Peoples R China.
RP Guild, MD (reprint author), US Naval Res Lab, NRC Postdoctoral Res Associateship Program, Washington, DC 20375 USA.
EM mdguild@utexas.edu; jsdehesa@upv.es
FU U.S. Office of Naval Research [N000141210216]; Spanish Ministerio de
Economia y Competitividad (MINECO) [TEC2010-19751]
FX This work was supported by the U.S. Office of Naval Research (Award No.
N000141210216) and by the Spanish Ministerio de Economia y
Competitividad (MINECO) under Contract No. TEC2010-19751.
NR 51
TC 5
Z9 5
U1 5
U2 62
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 MAR 21
PY 2015
VL 117
IS 11
AR 114902
DI 10.1063/1.4915346
PG 14
WC Physics, Applied
SC Physics
GA CE1WZ
UT WOS:000351604900048
ER
PT J
AU Valle-Levinson, A
Huguenard, K
Ross, L
Branyon, J
MacMahan, J
Reniers, A
AF Valle-Levinson, Arnoldo
Huguenard, Kimberly
Ross, Lauren
Branyon, Jackie
MacMahan, Jamie
Reniers, Ad
TI Tidal and nontidal exchange at a subtropical inlet: Destin Inlet,
Northwest Florida
SO ESTUARINE COASTAL AND SHELF SCIENCE
LA English
DT Article
DE tidal flows; residual exchange; tidal inlet; Destin; Northwest Florida
ID WELL-MIXED ESTUARY; CHESAPEAKE BAY; AXIAL CONVERGENCE; FLOW; FRONTS;
CIRCULATION; VARIABILITY; STABILITY; GRADIENTS; INTRUSION
AB A tidal-cycle study at Destin Inlet, Northwest Florida, investigated intratidal and residual flow structures for the first time across the inlet. Underway current velocity profiles were combined with hydrographic station profiles at neap tides to document the appearance of tidal fronts, the distribution of tidal currents across two cross-sections, and the residual, or non-tidal, flow structure at the same cross-sections. Intratidal variations of water density and velocity showed the presence of fronts both in 1) late ebb-early flood and 2) late flood-early ebb tidal stages. Late ebb-early flood tidal intrusion fronts brought about depth-independent changes in water density >10 kg/m(3) in <2 h. Their counterparts, late flood-early ebb plume-like fronts, produced similar magnitude of variations in density but were depth-dependent. Diurnal tidal current distributions across the inlet followed a general behavior of a damped wave with strongest currents appearing near the surface and near the deepest part of the cross-sections (thalweg). However, curvature effects seemed to modify this behavior locally by shifting the maximum tidal current away from the thalweg. Frictional and curvature effects on the diurnal flows were confirmed by an analytical solution for tidal currents. The observed density gradients drove residual flows that were vertically sheared, with outflow at the surface and inflow near the bottom. Such residual flow distributions were reproduced by an analytical solution that diagnosed the flow structure as inherent of a dynamically narrow inlet with relatively weak frictional effects. (C) 2015 Elsevier Ltd. All rights reserved.
C1 [Valle-Levinson, Arnoldo; Huguenard, Kimberly; Ross, Lauren; Branyon, Jackie] Univ Florida, Civil & Coastal Engn Dept, Gainesville, FL 32611 USA.
[MacMahan, Jamie] Naval Postgrad Sch, Monterey, CA USA.
[Reniers, Ad] Delft Univ Technol, Delft, Netherlands.
RP Valle-Levinson, A (reprint author), Univ Florida, Civil & Coastal Engn Dept, Gainesville, FL 32611 USA.
EM arnoldo@ufl.edu
FU BP/The Gulf of Mexico Research Initiative; NSF [OCE-1332718]
FX This study was made possible by a grant from BP/The Gulf of Mexico
Research Initiative. G. Finch captained his boat for part of the
experiment. The assistance in the field of A. Laurel, S. Valentim, F.
Nascimento, A. Soloviev, G. Novelli, C. Smith, C. Dean, B. Hamilton is
greatly appreciated. AVL acknowledges support from NSF project
OCE-1332718.
NR 42
TC 2
Z9 2
U1 0
U2 13
PU ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
PI LONDON
PA 24-28 OVAL RD, LONDON NW1 7DX, ENGLAND
SN 0272-7714
EI 1096-0015
J9 ESTUAR COAST SHELF S
JI Estuar. Coast. Shelf Sci.
PD MAR 20
PY 2015
VL 155
BP 137
EP 147
DI 10.1016/j.ecss.2015.01.020
PG 11
WC Marine & Freshwater Biology; Oceanography
SC Marine & Freshwater Biology; Oceanography
GA CF6OI
UT WOS:000352675600015
ER
PT J
AU Aschwanden, MJ
Boerner, P
Ryan, D
Caspi, A
McTiernan, JM
Warren, HP
AF Aschwanden, Markus J.
Boerner, Paul
Ryan, Daniel
Caspi, Amir
McTiernan, James M.
Warren, Harry P.
TI GLOBAL ENERGETICS OF SOLAR FLARES. II. THERMAL ENERGIES
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE plasmas; radiation mechanisms: thermal; Sun: flares; Sun: UV radiation
ID SELF-ORGANIZED CRITICALITY; PHYSICAL PARAMETERS; QUIET SUN;
MULTIWAVELENGTH OBSERVATIONS; FUNDAMENTAL LIMITATIONS; TEMPERATURE
STRUCTURE; PLASMA TEMPERATURE; FRACTAL DIMENSION; FLARE/CME EVENTS;
ACTIVE-REGION
AB We present the second part of a project on the global energetics of solar flares and CMEs that includes about 400 M- and X-class flares observed with Atmospheric Imaging Assembly (AIA) onboard the Solar Dynamics Observatory (SDO) during the first 3.5 years of its mission. In this Paper II we compute the differential emission measure (DEM) distribution functions and associated multi-thermal energies, using a spatially-synthesized Gaussian DEM forward-fitting method. The multi-thermal DEM function yields a significantly higher (by an average factor of approximate to 14), but more comprehensive (multi-)thermal energy than an isothermal energy estimate from the same AIA data. We find a statistical energy ratio of E-th/E-diss >> 2%-40% between the multi-thermal energy E-th and the magnetically dissipated energy E-diss, which is an order of magnitude higher than the estimates of Emslie et al.2012. For the analyzed set of M and X-class flares we find the following physical parameter ranges: L=10(8.2)-10 (9.7) cm for the length scale of the flare areas, T-p=10 (5.7)-10 (7.4) K for the DEM peak temperature, T-w=10 (6.8)-10 (7.6) K for the emission measure-weighted temperature, n(p)=10 (10.3)-10 (11.8) cm(-3) for the average electron density, EMp=10 (47.3)-10 (50.3) cm-3 for the DEM peak emission measure, and E-th=10 (26.8)-10 (32.0) erg for the multi-thermal energies. The deduced multi-thermal energies are consistent with the RTV scaling law E-th,E-RTV=7.3 x 10(-10) (TpLp2)-L-3, which predicts extremal values of E-th,E-max approximate to 1.5 x 10 (33) erg for the largest flare and E-th,E-min approximate to 1 x 10 (24) erg for the smallest coronal nanoflare. The size distributions of the spatial parameters exhibit powerlaw tails that are consistent with the predictions of the fractal-diffusive self-organized criticality model combined with the RTV scaling law.
C1 [Aschwanden, Markus J.; Boerner, Paul] Lockheed Martin, Solar & Astrophys Lab, Palo Alto, CA 94304 USA.
[Ryan, Daniel] Royal Observ Belgium, Solar Terr Ctr Excellence, B-1180 Brussels, Belgium.
[Caspi, Amir] Southwest Res Inst, Planetary Sci Directorate, Boulder, CO 80302 USA.
[McTiernan, James M.] Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA.
[Warren, Harry P.] Naval Res Lab, Div Space Sci, Washington, DC 20375 USA.
RP Aschwanden, MJ (reprint author), Lockheed Martin, Solar & Astrophys Lab, Org A021S,Bldg 252,3251 Hanover St, Palo Alto, CA 94304 USA.
EM aschwanden@lmsal.com; ryand5@tcd.ie; amir.caspi@lasp.colorado.edu;
jimm@ssl.berkeley.edu; harry.warren@nrl.navy.mil
OI Caspi, Amir/0000-0001-8702-8273
FU NASA [NNG 04EA00C]; NASA STEREO mission under NRL [N00173-02-C-2035]
FX We appreciate helpful and constructive comments from an anonymous
referee and from a number of participants of the RHESSI-13 workshop.
Part of the work was supported by NASA contract NNG 04EA00C of the
SDO/AIA instrument and the NASA STEREO mission under NRL contract
N00173-02-C-2035.
NR 40
TC 8
Z9 8
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 MAR 20
PY 2015
VL 802
IS 1
AR 53
DI 10.1088/0004-637X/802/1/53
PG 20
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA CE4XW
UT WOS:000351834700053
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, EC
Averichev, GS
Banerjee, A
Beavis, DR
Bellwied, R
Bhasin, A
Bhati, AK
Bhattarai, P
Bichsel, H
Bielcik, J
Bielcikova, J
Bland, LC
Bordyuzhin, IG
Borowski, W
Bouchet, J
Brandin, AV
Brovko, SG
Bultmann, S
Bunzarov, I
Burton, TP
Butterworth, J
Caines, H
Sanchez, MCD
Campbell, JM
Cebra, D
Cendejas, R
Cervantes, MC
Chaloupka, P
Chang, Z
Chattopadhyay, S
Chen, HF
Chen, JH
Chen, L
Cheng, J
Cherney, M
Chikanian, A
Christie, W
Chwastowski, J
Codrington, MJM
Contin, G
Cramer, JG
Crawford, HJ
Cui, X
Das, S
Leyva, AD
De Silva, LC
Debbe, RR
Dedovich, TG
Deng, J
Derevschikov, AA
de Souza, RD
di Ruzza, B
Didenko, L
Dilks, C
Ding, F
Djawotho, P
Dong, X
Drachenberg, JL
Draper, JE
Du, CM
Dunkelberger, LE
Dunlop, JC
Efimov, LG
Engelage, J
Engle, KS
Eppley, G
Eun, L
Evdokimov, O
Eyser, O
Fatemi, R
Fazio, S
Fedorisin, J
Filip, P
Fisyak, Y
Flores, CE
Gagliardi, CA
Gangadharan, DR
Garand, D
Geurts, F
Gibson, A
Girard, M
Gliske, S
Greiner, L
Grosnick, D
Gunarathne, DS
Guo, Y
Gupta, A
Gupta, S
Guryn, W
Haag, B
Hamed, A
Han, LX
Haque, R
Harris, JW
Heppelmann, S
Hirsch, A
Hoffmann, GW
Hofman, DJ
Horvat, S
Huang, B
Huang, HZ
Huang, X
Huck, P
Humanic, TJ
Igo, G
Jacobs, WW
Jang, H
Judd, EG
Kabana, S
Kalinkin, D
Kang, K
Kauder, K
Ke, HW
Keane, D
Kechechyan, A
Kesich, A
Khan, ZH
Kikola, DP
Kisel, I
Kisiel, A
Koetke, DD
Kollegger, T
Konzer, J
Koralt, I
Kosarzewski, LK
Kotchenda, L
Kraishan, AF
Kravtsov, P
Krueger, K
Kulakov, I
Kumar, L
Kycia, RA
Lamont, MAC
Landgraf, JM
Landry, KD
Lauret, J
Lebedev, A
Lednicky, R
Lee, JH
Li, C
Li, W
Li, X
Li, X
Li, Y
Li, ZM
Lisa, MA
Liu, F
Ljubicic, T
Llope, WJ
Lomnitz, M
Longacre, RS
Luo, X
Ma, GL
Ma, YG
Mahapatra, DP
Majka, R
Margetis, S
Markert, C
Masui, H
Matis, HS
McDonald, D
McShane, TS
Minaev, NG
Mioduszewski, S
Mohanty, B
Mondal, MM
Morozov, DA
Mustafa, MK
Nandi, BK
Nasim, M
Nayak, TK
Nelson, JM
Nigmatkulov, G
Nogach, LV
Noh, SY
Novak, J
Nurushev, SB
Odyniec, G
Ogawa, A
Oh, K
Ohlson, A
Okorokov, V
Oldag, EW
Olvitt, DL
Page, BS
Pan, YX
Pandit, Y
Panebratsev, Y
Pawlak, T
Pawlik, B
Pei, H
Perkins, C
Pile, P
Planinic, M
Pluta, J
Poljak, N
Poniatowska, K
Porter, J
Poskanzer, AM
Pruthi, NK
Przybycien, M
Putschke, J
Qiu, H
Quintero, A
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
Rusnakova, O
Sahoo, NR
Sahu, PK
Sakrejda, I
Salur, S
Sandacz, A
Sandweiss, J
Sangaline, E
Sarkar, A
Schambach, J
Scharenberg, RP
Schmah, AM
Schmidke, WB
Schmitz, N
Seger, J
Seyboth, P
Shah, N
Shahaliev, E
Shanmuganathan, PV
Shao, M
Sharma, B
Shen, WQ
Shi, SS
Shou, QY
Sichtermann, EP
Simko, M
Skoby, MJ
Smirnov, D
Smirnov, N
Solanki, D
Sorensen, P
Spinka, HM
Srivastava, B
Stanislaus, TDS
Stevens, JR
Stock, R
Strikhanov, M
Stringfellow, B
Sumbera, M
Sun, X
Sun, XM
Sun, Y
Sun, Z
Surrow, B
Svirida, DN
Symons, TJM
Szelezniak, MA
Takahashi, J
Tang, AH
Tang, Z
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
Vandenbroucke, M
Vanfossen, JA
Varma, R
Vasconcelos, GMS
Vasiliev, AN
Vertesi, R
Videbaek, F
Viyogi, YP
Vokal, S
Vossen, A
Wada, M
Wang, F
Wang, G
Wang, H
Wang, JS
Wang, XL
Wang, Y
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, J
Xu, N
Xu, H
Xu, Y
Xu, Z
Yan, W
Yang, C
Yang, Y
Yang, Y
Ye, Z
Yepes, P
Yi, L
Yip, K
Yoo, IK
Yu, N
Zbroszczyk, H
Zha, W
Zhang, JB
Zhang, JL
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. C.
Averichev, G. S.
Banerjee, A.
Beavis, D. R.
Bellwied, 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.
Bultmann, S.
Bunzarov, I.
Burton, T. P.
Butterworth, J.
Caines, H.
Sanchez, M. Calderon de la Barca
Campbell, J. M.
Cebra, D.
Cendejas, R.
Cervantes, M. C.
Chaloupka, P.
Chang, Z.
Chattopadhyay, S.
Chen, H. F.
Chen, J. H.
Chen, L.
Cheng, J.
Cherney, M.
Chikanian, A.
Christie, W.
Chwastowski, J.
Codrington, M. J. M.
Contin, G.
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.
Derevschikov, A. A.
Derradi de Souza, R.
di Ruzza, B.
Didenko, L.
Dilks, C.
Ding, F.
Djawotho, P.
Dong, X.
Drachenberg, J. L.
Draper, J. E.
Du, C. M.
Dunkelberger, L. E.
Dunlop, J. C.
Efimov, L. G.
Engelage, J.
Engle, K. S.
Eppley, G.
Eun, L.
Evdokimov, O.
Eyser, O.
Fatemi, R.
Fazio, S.
Fedorisin, J.
Filip, P.
Fisyak, Y.
Flores, C. E.
Gagliardi, C. A.
Gangadharan, D. R.
Garand, D.
Geurts, F.
Gibson, A.
Girard, M.
Gliske, S.
Greiner, L.
Grosnick, D.
Gunarathne, D. S.
Guo, Y.
Gupta, A.
Gupta, S.
Guryn, W.
Haag, B.
Hamed, A.
Han, L-X.
Haque, R.
Harris, J. W.
Heppelmann, S.
Hirsch, A.
Hoffmann, G. W.
Hofman, D. J.
Horvat, S.
Huang, B.
Huang, H. Z.
Huang, X.
Huck, P.
Humanic, T. J.
Igo, G.
Jacobs, W. W.
Jang, H.
Judd, E. G.
Kabana, S.
Kalinkin, D.
Kang, K.
Kauder, K.
Ke, H. W.
Keane, D.
Kechechyan, A.
Kesich, A.
Khan, Z. H.
Kikola, D. P.
Kisel, I.
Kisiel, A.
Koetke, D. D.
Kollegger, T.
Konzer, J.
Koralt, I.
Kosarzewski, L. K.
Kotchenda, L.
Kraishan, A. F.
Kravtsov, P.
Krueger, K.
Kulakov, I.
Kumar, L.
Kycia, R. A.
Lamont, M. A. C.
Landgraf, J. M.
Landry, K. D.
Lauret, J.
Lebedev, A.
Lednicky, R.
Lee, J. H.
Li, C.
Li, W.
Li, X.
Li, X.
Li, Y.
Li, Z. M.
Lisa, M. A.
Liu, F.
Ljubicic, T.
Llope, W. J.
Lomnitz, M.
Longacre, R. S.
Luo, X.
Ma, G. L.
Ma, Y. G.
Mahapatra, D. P.
Majka, R.
Margetis, S.
Markert, C.
Masui, H.
Matis, H. S.
McDonald, D.
McShane, T. S.
Minaev, N. G.
Mioduszewski, S.
Mohanty, B.
Mondal, M. M.
Morozov, D. A.
Mustafa, M. K.
Nandi, B. K.
Nasim, Md.
Nayak, T. K.
Nelson, J. M.
Nigmatkulov, G.
Nogach, L. V.
Noh, S. Y.
Novak, J.
Nurushev, S. B.
Odyniec, G.
Ogawa, A.
Oh, K.
Ohlson, A.
Okorokov, V.
Oldag, E. W.
Olvitt, D. L., Jr.
Page, B. S.
Pan, Y. X.
Pandit, Y.
Panebratsev, Y.
Pawlak, T.
Pawlik, B.
Pei, H.
Perkins, C.
Pile, P.
Planinic, M.
Pluta, J.
Poljak, N.
Poniatowska, K.
Porter, J.
Poskanzer, A. M.
Pruthi, N. K.
Przybycien, M.
Putschke, J.
Qiu, H.
Quintero, A.
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.
Rusnakova, O.
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, W. B.
Schmitz, N.
Seger, J.
Seyboth, P.
Shah, N.
Shahaliev, E.
Shanmuganathan, P. V.
Shao, M.
Sharma, B.
Shen, W. Q.
Shi, S. S.
Shou, Q. Y.
Sichtermann, E. P.
Simko, M.
Skoby, M. J.
Smirnov, D.
Smirnov, N.
Solanki, D.
Sorensen, P.
Spinka, H. M.
Srivastava, B.
Stanislaus, T. D. S.
Stevens, J. R.
Stock, R.
Strikhanov, M.
Stringfellow, B.
Sumbera, M.
Sun, X.
Sun, X. M.
Sun, Y.
Sun, Z.
Surrow, B.
Svirida, D. N.
Symons, T. J. M.
Szelezniak, M. A.
Takahashi, J.
Tang, A. H.
Tang, Z.
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.
Vandenbroucke, M.
Vanfossen, J. A., Jr.
Varma, R.
Vasconcelos, G. M. S.
Vasiliev, A. N.
Vertesi, R.
Videbaek, F.
Viyogi, Y. P.
Vokal, S.
Vossen, A.
Wada, M.
Wang, F.
Wang, G.
Wang, H.
Wang, J. S.
Wang, X. L.
Wang, Y.
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, J.
Xu, N.
Xu, H.
Xu, Y.
Xu, Z.
Yan, W.
Yang, C.
Yang, Y.
Yang, Y.
Ye, Z.
Yepes, P.
Yi, L.
Yip, K.
Yoo, I-K.
Yu, N.
Zbroszczyk, H.
Zha, W.
Zhang, J. B.
Zhang, J. L.
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 Charged-to-neutral correlation at forward rapidity in Au plus Au
collisions at root s(NN)=200 GeV
SO PHYSICAL REVIEW C
LA English
DT Article
ID DISORIENTED CHIRAL CONDENSATE; QUARK-GLUON PLASMA; TIME PROJECTION
CHAMBER; HEAVY-ION COLLISIONS; STAR EXPERIMENT; FLUCTUATIONS; SEARCH;
COLLABORATION; PERSPECTIVE; DETECTOR
AB Event-by-event fluctuations of the multiplicities of inclusive charged particles and photons at forward rapidity in Au + Au collisions at root s(NN) = 200 GeV have been studied. The dominant contribution to such fluctuations is expected to come from correlated production of charged and neutral pions. We search for evidence of dynamical fluctuations of different physical origins. Observables constructed out of moments of multiplicities are used as measures of fluctuations. Mixed events and model calculations are used as base lines. Results are compared to the dynamical net-charge fluctuations measured in the same acceptance. A nonzero statistically significant signal of dynamical fluctuations is observed in excess to the model prediction when charged particles and photons are measured in the same acceptance. We find that, unlike dynamical net-charge fluctuation, charge-neutral fluctuation is not dominated by correlation owing to particle decay. Results are compared to the expectations based on the generic production mechanism of pions owing to isospin symmetry, for which no significant (<1%) deviation is observed.
C1 [Adamczyk, L.; Przybycien, M.; Wang, Y.] AGH Univ Sci & Technol, PL-30059 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.
[Aparin, A.; Arkhipkin, D.; Aschenauer, E. C.; Beavis, D. R.; Bland, L. C.; Burton, T. P.; Christie, W.; Debbe, R. R.; di Ruzza, B.; Didenko, L.; Dunlop, J. C.; Eyser, O.; Fazio, S.; Fisyak, Y.; Guryn, W.; Huang, B.; Ke, H. W.; Lamont, M. A. C.; Landgraf, J. M.; Lauret, J.; Lebedev, A.; Lee, J. H.; Ljubicic, T.; Longacre, R. S.; Ogawa, A.; Pile, P.; Ruan, L.; Schmidke, W. B.; Smirnov, D.; Sorensen, P.; Tang, A. H.; Ullrich, T.; Van Buren, G.; Videbaek, F.; Wang, H.; Webb, G.; 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.
[Aparin, A.; Brovko, S. G.; Sanchez, M. Calderon de la Barca; Cebra, D.; Ding, F.; Draper, J. E.; Flores, C. 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.; Nasim, Md.; Pan, Y. X.; Shah, N.; Trentalange, S.; Tsai, O. D.; Wang, G.; 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, L.; Huck, P.; Li, Z. M.; Liu, F.; Luo, X.; Pei, H.; Wu, Y. F.; Xu, J.; Yang, Y.; Yu, N.; Zhang, J. B.; Zhao, J.] Cent China Normal Univ HZNU, Wuhan 430079, Peoples R China.
[Evdokimov, O.; Hofman, D. J.; Kauder, K.; Khan, Z. H.; Pandit, Y.; Wang, Y.; Ye, Z.] Univ Illinois, Chicago, IL 60607 USA.
[Kycia, R. A.] Cracow Univ Technol, PL-30084 Krakow, Poland.
[Cherney, M.; De Silva, L. C.; McShane, T. S.; Ross, J. F.; Seger, J.] Creighton Univ, Omaha, NE 68178 USA.
[Bielcik, J.; Chaloupka, P.; Rusnakova, O.; Simko, M.; Trzeciak, B. A.] Czech Tech Univ, FNSPE, Prague 11519, Czech Republic.
[Bielcikova, J.; Rusnak, J.; Sumbera, M.; Tlusty, D.; Vertesi, R.] AS CR, Inst Phys Nucl, Rez 25068, Czech Republic.
[Kisel, I.; Kollegger, T.; Kulakov, I.; Stock, R.; Zyzak, M.] Frankfurt Inst Adv Studies, Frankfurt, Germany.
[Das, S.; Mahapatra, D. P.; Sahu, P. K.] Inst Phys, Bhubaneswar 751005, Orissa, India.
[Nandi, B. K.; Sarkar, A.; Varma, R.] Indian Inst Technol, Bombay 400076, Maharashtra, India.
[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.; Kalinkin, D.; 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.; Lomnitz, M.; Margetis, S.; Quintero, A.; Shanmuganathan, P. V.; Vanfossen, J. A., Jr.] Kent State Univ, Kent, OH 44242 USA.
[Adkins, J. K.; Fatemi, R.; Ramachandran, S.] Univ Kentucky, Lexington, KY 40506 USA.
[Jang, H.; Noh, S. Y.] Korea Inst Sci & Technol Informat, Taejon, South Korea.
[Du, C. M.; Sun, Z.; Wang, J. S.; Xu, H.; Yang, Y.] Inst Modern Phys, Lanzhou, Peoples R China.
[Contin, G.; Dong, X.; Eun, L.; Greiner, L.; Masui, H.; Matis, H. S.; Mustafa, M. K.; Odyniec, G.; Porter, J.; Poskanzer, A. M.; Qiu, H.; Ritter, H. G.; Sakrejda, I.; Salur, S.; Schmah, A. M.; Shi, S. S.; Sichtermann, E. P.; Sun, X.; Sun, X. M.; Symons, T. J. M.; Szelezniak, M. A.; Thomas, J. H.; Wieman, H.; Xu, N.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[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.; Nigmatkulov, G.; Okorokov, V.; Strikhanov, M.] Moscow Phys Engn Inst, Moscow, Russia.
[Haque, R.; Kumar, L.; Mohanty, B.] Natl Inst Sci Educ & Res, Bhubaneswar 751005, Orissa, India.
[Anson, C. D.; Campbell, J. M.; Gangadharan, D. R.; Humanic, T. J.; Lisa, M. A.] Ohio State Univ, Columbus, OH 43210 USA.
[Bultmann, S.; Koralt, I.] Old Dominion Univ, Norfolk, VA 23529 USA.
[Chwastowski, J.; Pawlik, B.; Turnau, J.] PAN, Inst Nucl Phys, Krakow, Poland.
[Aggarwal, M. M.; Bhati, A. K.; Pruthi, N. K.; Sharma, B.] Panjab Univ, Chandigarh 160014, India.
[Cendejas, R.; Dilks, C.; Heppelmann, S.] Penn State Univ, University Pk, PA 16802 USA.
[Derevschikov, A. A.; Minaev, N. G.; Morozov, D. A.; Nogach, L. V.; Nurushev, S. B.; Vasiliev, A. N.] Inst High Energy Phys, Protvino, Russia.
[Derevschikov, A. A.; Garand, D.; Hirsch, A.; Konzer, J.; Li, X.; Scharenberg, R. P.; Srivastava, B.; Stringfellow, B.; Wang, F.; Xie, W.; Yi, L.] Purdue Univ, W Lafayette, IN 47907 USA.
[Raniwala, R.; Raniwala, S.; Solanki, D.] Univ Rajasthan, Jaipur 302004, Rajasthan, India.
[Butterworth, J.; Eppley, G.; Geurts, F.; Llope, W. J.; Roberts, J. B.; Xin, K.; Yepes, P.] Rice Univ, Houston, TX 77251 USA.
[Chen, H. F.; Cui, X.; Guo, Y.; Li, C.; Shao, M.; Sun, Y.; Tang, Z.; Wang, X. L.; Xu, Y.; Yang, C.; Zha, W.; Zhang, Y.; Zhang, Z. P.] Univ Sci & Technol China, Anhua 230026, Peoples R China.
[Deng, J.; Xu, H.; Zhang, J. L.] 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.; Zhong, C.; Zhu, Y. H.] Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China.
[Borowski, W.; Kabana, S.] SUBATECH, Nantes, France.
[Gunarathne, D. S.; Kraishan, A. F.; Li, X.; Olvitt, D. L., Jr.; Surrow, B.; Vandenbroucke, M.] Temple Univ, Philadelphia, PA 19122 USA.
[Cervantes, M. C.; Chang, Z.; Djawotho, P.; Gagliardi, C. A.; Hamed, A.; Mioduszewski, S.; Mondal, M. M.; Sahoo, N. R.; 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.; McDonald, D.; Timmins, A. R.] Univ Houston, Houston, TX 77204 USA.
[Cheng, J.; Huang, X.; Kang, K.; Li, Y.; Wang, Y.; Xiao, Z.; Yan, W.; Zhang, X. P.; Zhu, X.] Tsinghua Univ, Beijing 100084, Peoples R China.
[Engle, K. S.; 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.; Nayak, T. K.; Roy, A.; Tribedy, P.; Viyogi, Y. P.] Bhabha Atom Res Ctr, Ctr Variable Energy Cyclotron, Kolkata 700064, W Bengal, India.
[Girard, M.; Kikola, D. P.; Kisiel, A.; Kosarzewski, L. K.; Pawlak, T.; Pluta, J.; Poniatowska, K.; Sandacz, A.; Zbroszczyk, H.] Warsaw Univ Technol, Warsaw, Poland.
[Bichsel, H.; Cramer, J. G.] Univ Washington, Seattle, WA 98195 USA.
[Putschke, J.] Wayne State Univ, Detroit, MI 48201 USA.
[Caines, H.; Chikanian, A.; 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 Greiner, L (reprint author), AGH Univ Sci & Technol, PL-30059 Krakow, Poland.
RI Inst. of Physics, Gleb Wataghin/A-9780-2017; Ma, Yu-Gang/M-8122-2013;
Gunarathne, Devika/C-4903-2017; Derradi de Souza, Rafael/M-4791-2013;
Huang, Bingchu/H-6343-2015; Xin, Kefeng/O-9195-2016; Yi, Li/Q-1705-2016;
Alekseev, Igor/J-8070-2014; Svirida, Dmitry/R-4909-2016; Kumar,
Lokesh/A-6154-2010; Rusnak, Jan/G-8462-2014; Sumbera,
Michal/O-7497-2014; Fazio, Salvatore /G-5156-2010; Kycia,
Radoslaw/J-4397-2015; Bielcikova, Jana/G-9342-2014; Chaloupka,
Petr/E-5965-2012; Takahashi, Jun/B-2946-2012
OI Ma, Yu-Gang/0000-0002-0233-9900; Gunarathne, Devika/0000-0002-7155-7418;
Derradi de Souza, Rafael/0000-0002-2084-7001; Huang,
Bingchu/0000-0002-3253-3210; Xin, Kefeng/0000-0003-4853-9219; Yi,
Li/0000-0002-7512-2657; Alekseev, Igor/0000-0003-3358-9635; Kumar,
Lokesh/0000-0002-2746-9840; Sumbera, Michal/0000-0002-0639-7323; Kycia,
Radoslaw/0000-0002-6390-4627; Takahashi, Jun/0000-0002-4091-1779
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; CNRS/IN2P3; FAPESP CNPq of
Brazil; Ministry of Education and Science of the Russian Federation;
NNSFC; CAS; MoST; MoE of China; Korean Research Foundation; GA and MSMT
of the Czech Republic; FIAS of Germany; DAE; DST; CSIR of India;
National Science Centre of Poland; National Research Foundation
[NRF-2012004024]; Ministry of Science, Education and Sports of the
Republic of Croatia; RosAtom of Russia
FX We thank the RHIC Operations Group and RCF at BNL, the NERSC Center at
LBNL, the KISTI Center in Korea, 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, CNRS/IN2P3; FAPESP CNPq of Brazil; the Ministry of Education
and Science of the Russian Federation, NNSFC, CAS, MoST, and MoE of
China; the Korean Research Foundation; GA and MSMT of the Czech
Republic; FIAS of Germany; DAE, DST, and CSIR of India; the National
Science Centre of Poland; National Research Foundation (NRF-2012004024);
the Ministry of Science, Education and Sports of the Republic of
Croatia; and RosAtom of Russia.
NR 64
TC 1
Z9 1
U1 3
U2 37
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 2469-9985
EI 2469-9993
J9 PHYS REV C
JI Phys. Rev. C
PD MAR 20
PY 2015
VL 91
IS 3
AR 034905
DI 10.1103/PhysRevC.91.034905
PG 13
WC Physics, Nuclear
SC Physics
GA CE8GA
UT WOS:000352078500002
ER
PT J
AU Caspi, A
Woods, TN
Warren, HP
AF Caspi, Amir
Woods, Thomas N.
Warren, Harry P.
TI NEW OBSERVATIONS OF THE SOLAR 0.5-5 KEV SOFT X-RAY SPECTRUM
SO ASTROPHYSICAL JOURNAL LETTERS
LA English
DT Article
DE plasmas; radiation mechanisms: thermal; Sun: corona; Sun: X-rays;
gamma-rays
ID STELLAR CORONAL ABUNDANCES; ACTIVE-REGION; EMISSION MEASURES; ATOMIC
DATABASE; RHESSI; SPECTROMETER; TEMPERATURE; CHIANTI; PLASMA;
DISTRIBUTIONS
AB The solar corona is orders of magnitude hotter than the underlying photosphere, but how the corona attains such high temperatures is still not understood. Soft X-ray (SXR) emission provides important diagnostics for thermal processes in the high-temperature corona, and is also an important driver of ionospheric dynamics at Earth. There is a crucial observational gap between similar to 0.2 and similar to 4 keV, outside the ranges of existing spectrometers. We present observations from a new SXR spectrometer, the Amptek X123-SDD, which measured the spatially integrated solar spectral irradiance from similar to 0.5 to similar to 5 keV, with similar to 0.15 keV FWHM resolution, during sounding rocket flights on 2012 June 23 and 2013 October 21. These measurements show that the highly variable SXR emission is orders of magnitude greater than that during the deep minimum of 2009, even with only weak activity. The observed spectra show significant high-temperature (5-10 MK) emission and are well fit by simple power-law temperature distributions with indices of similar to 6, close to the predictions of nanoflare models of coronal heating. Observations during the more active 2013 flight indicate an enrichment of low first-ionization potential elements of only similar to 1.6, below the usually observed value of similar to 4, suggesting that abundance variations may be related to coronal heating processes. The XUV Photometer System Level 4 data product, a spectral irradiance model derived from integrated broadband measurements, significantly overestimates the spectra from both flights, suggesting a need for revision of its non-flare reference spectra, with important implications for studies of Earth ionospheric dynamics driven by solar SXRs.
C1 [Caspi, Amir; Woods, Thomas N.] Univ Colorado, Lab Atmospher & Space Phys, Boulder, CO 80303 USA.
[Warren, Harry P.] Naval Res Lab, Div Space Sci, Washington, DC 20375 USA.
RP Caspi, A (reprint author), Southwest Res Inst, Boulder, CO 80302 USA.
OI Caspi, Amir/0000-0001-8702-8273
FU NASA [NAS5-02140]
FX This work was supported by NASA contract NAS5-02140. We thank J. Stone
for his analysis during the summer 2012 LASP REU program, and A. Y. Shih
for many helpful discussions.
NR 44
TC 14
Z9 14
U1 0
U2 3
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 MAR 20
PY 2015
VL 802
IS 1
DI 10.1088/2041-8205/802/1/L2
PG 6
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA CE3PK
UT WOS:000351739800002
ER
PT J
AU Gonzalez, DR
Gaitonde, DV
Lewis, MJ
AF Gonzalez, D. R.
Gaitonde, D. V.
Lewis, M. J.
TI Large-eddy simulations of plasma-based asymmetric control of supersonic
round jets
SO INTERNATIONAL JOURNAL OF COMPUTATIONAL FLUID DYNAMICS
LA English
DT Article
DE large-eddy simulation; instability; supersonic jets; plasma flow
control; noise control
ID TURBULENT SHEAR-LAYER; AXISYMMETRICAL JET; MIXING LAYER; HIGH-SPEED;
SYNTHETIC JETS; CONTROL-SYSTEM; ACTIVE CONTROL; GAS INJECTION; ROCKET
NOZZLE; ACTUATORS
AB Localised arc filament plasma actuators are modelled with a validated technique to examine asymmetric control of a perfectly expanded round free jet to deflect its downstream trajectory. The nominal Mach and Reynolds numbers are 1.3 and 1 million, respectively. No-control, symmetrically controlled, and under-expanded jets are also simulated for comparison purposes. Parametric variation of actuation frequency and duty cycle indicate that asymmetric control can alter the trajectory, and, within the confines of the parameters investigated, the optimal forcing scheme was found to correspond to the jet's column-mode frequency and a duty cycle of approximately 60%. Increasing frequency and duty cycle beyond these values have a detrimental effect on control, which is consistent with experimental findings. Asymmetric actuation resulted in significant mixing enhancement on the actuated side, as evidenced by the increased growth rate of the non-dimensional momentum thickness. The effectiveness of control is reduced for under-expanded jet conditions.
C1 [Gonzalez, D. R.] Naval Surface Warfare Ctr, Warhead & Prop Technol Branch, Indian Head, MD 20640 USA.
[Gaitonde, D. V.] Ohio State Univ, Dept Mech & Aerosp Engn, Columbus, OH 43210 USA.
[Lewis, M. J.] Sci & Technol Policy Inst, Inst Def Analyses, Washington, DC USA.
RP Gonzalez, DR (reprint author), Naval Surface Warfare Ctr, Warhead & Prop Technol Branch, Indian Head, MD 20640 USA.
EM david.r.gonzalez@navy.mil
FU Office of Naval Research: N-STAR programme (NSWC IHEODTD); Air Force
Office of Scientific Research; DOD Supercomputing Resource Centers
(DSRC)
FX Office of Naval Research: N-STAR programme (NSWC IHEODTD); Air Force
Office of Scientific Research; DOD Supercomputing Resource Centers
(DSRC)
NR 54
TC 1
Z9 1
U1 1
U2 5
PU TAYLOR & FRANCIS LTD
PI ABINGDON
PA 2-4 PARK SQUARE, MILTON PARK, ABINGDON OR14 4RN, OXON, ENGLAND
SN 1061-8562
EI 1029-0257
J9 INT J COMPUT FLUID D
JI Int. J. Comput. Fluid Dyn.
PD MAR 16
PY 2015
VL 29
IS 3-5
BP 240
EP 256
DI 10.1080/10618562.2015.1053877
PG 17
WC Mechanics; Physics, Fluids & Plasmas
SC Mechanics; Physics
GA CO7PL
UT WOS:000359352800004
ER
PT J
AU Hysell, DL
McCarrick, MJ
Fallen, CT
Vierinen, J
AF Hysell, D. L.
McCarrick, M. J.
Fallen, C. T.
Vierinen, J.
TI First artificial periodic inhomogeneity experiments at HAARP
SO GEOPHYSICAL RESEARCH LETTERS
LA English
DT Article
DE ionospheric modification; API
ID HEATING FACILITY; RADIO-WAVES; IONOSPHERE; SCATTERING; REGION;
IRREGULARITIES; DIAGNOSTICS; ATMOSPHERE; DENSITY; HEIGHTS
AB Experiments involving the generation and detection of artificial periodic inhomogeneities have been performed at the High Frequency Active Auroral Research Program (HAARP) facility. Irregularities were created using powerful X-mode HF emissions and then probed using short (10 s) X- and O-mode pulses. Reception was performed using a portable software-defined receiver together with the crossed rhombic antenna from the local ionosonde. Echoes were observed reliably between about 85 and 140 km altitude with signal-to-noise ratios as high as about 30 dB. The Doppler shift of the echoes can be associated with the vertical neutral wind in this altitude range. Small but persistent Doppler shifts were observed. The decay time constant of the echoes is meanwhile indicative of the ambipolar diffusion coefficient which depends on the plasma temperature, composition, and neutral gas density. The measured time constants appear to be consistent with theoretical expectations and imply a methodology for measuring neutral density profiles. The significance of thermospheric vertical neutral wind and density measurements which are difficult to obtain using ground-based instruments by other means is discussed.
C1 [Hysell, D. L.] Cornell Univ, Earth & Atmospher Sci, Ithaca, NY 14850 USA.
[McCarrick, M. J.] Naval Res Lab, Washington, DC 20375 USA.
[Fallen, C. T.] Univ Alaska Fairbanks, Inst Geophys, Fairbanks, AK 99775 USA.
[Vierinen, J.] MIT, Haystack Observ, Westford, MA 01886 USA.
RP Hysell, DL (reprint author), Cornell Univ, Earth & Atmospher Sci, Ithaca, NY 14850 USA.
EM david.hysell@cornell.edu
RI Vierinen, Juha/M-9726-2015
OI Vierinen, Juha/0000-0001-7651-708X
FU National Science Foundation [AGS-1342895]; DARPA [HR0011-09-C-0099]
FX This work was supported by award AGS-1342895 from the National Science
Foundation and by contract HR0011-09-C-0099 from DARPA to Cornell
University. Data used in the preparation of this manuscript are
available from the corresponding author.
NR 28
TC 2
Z9 2
U1 0
U2 9
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 MAR 16
PY 2015
VL 42
IS 5
BP 1297
EP 1303
DI 10.1002/2015GL063064
PG 7
WC Geosciences, Multidisciplinary
SC Geology
GA CE5CL
UT WOS:000351847600003
ER
PT J
AU Bogdanoff, AS
Westphal, DL
Campbell, JR
Cummings, JA
Hyer, EJ
Reid, JS
Clayson, CA
AF Bogdanoff, Alec S.
Westphal, Douglas L.
Campbell, James R.
Cummings, James A.
Hyer, Edward J.
Reid, Jeffrey S.
Clayson, Carol Anne
TI Sensitivity of infrared sea surface temperature retrievals to the
vertical distribution of airborne dust aerosol
SO REMOTE SENSING OF ENVIRONMENT
LA English
DT Article
DE Dust aerosols; Sea surface temperature; Retrieval error; Radiative
transfer; Infrared remote sensing
ID SAHARAN DUST; RADIATIVE-TRANSFER; DATA ASSIMILATION; SATELLITE DATA;
AVHRR; ATLANTIC; NORTH; ALGORITHMS; MODEL; BIAS
AB Sea surface temperature retrievals using the Advanced Very High Resolution Radiometer are highly sensitive to cloud cover and coarse mode aerosol particles such as dust. Operationally, techniques are used to flag contaminated retrievals; however, these techniques are less precise in removing dust-contaminated values. A commonly stated metric of quality for SST daytime retrievals is 0.5 degrees C; thus dust contents that produce errors greater than this value should be of concern. Here we report on significant correlation between potential SST error and observed aerosol optical depths (AOD) that was found in the tropical region dominated by Saharan dust. Utilizing a radiative transfer model with variable dust contents and typical vertical distributions, errors greater than the desired 0.5 degrees C accuracy are observed for dust AODs as low as 0.05. Errors of over 1 degrees C occur with 0.25 AOD. Analysis of the AERONET data from Cape Verde, which includes the Saharan Air layer off the west coast of Africa, reveals that 90% of the days during the boreal summer are found to have AOD amounts that correspond to error greater than 0.5 degrees C. We found that a correction accurate within 0.25 degrees C requires a mean accuracy of 0.1 AOD and proper vertical placement of the dust layer within 250 m. While empirical SST retrievals often have some measure of climatological dust contamination built into them, this work shows that typical variability in dust loadings is a non-trivial error source against SST retrieval goals. (C) 2014 Elsevier Inc. All rights reserved.
C1 [Bogdanoff, Alec S.] MIT WHOI Joint Program Oceanog, Woods Hole, MA USA.
[Westphal, Douglas L.; Campbell, James R.; Cummings, James A.; Hyer, Edward J.; Reid, Jeffrey S.] Naval Res Lab, Monterey, CA USA.
[Clayson, Carol Anne] Woods Hole Oceanog Inst, Dept Phys Oceanog, Woods Hole, MA 02543 USA.
RP Bogdanoff, AS (reprint author), Woods Hole Oceanog Inst, 266 Woods Hole Rd,MS 21, Woods Hole, MA 02543 USA.
EM abogdanoff@whoi.edu
RI Campbell, James/C-4884-2012; Hyer, Edward/E-7734-2011; Reid,
Jeffrey/B-7633-2014;
OI Campbell, James/0000-0003-0251-4550; Hyer, Edward/0000-0001-8636-2026;
Reid, Jeffrey/0000-0002-5147-7955; Bogdanoff, Alec/0000-0002-0467-3785
FU Office of Naval Research [0602435N]; Department of Defense (DoD) through
the Naval Research Enterprise Intern Program (NREIP); National Defense
Science and Engineering Graduate (NDSEG) Fellowship Program; NASA Earth
Science MEaSUREs DISCOVER Project; AMSR-E Science Team
FX Research funded by Office of Naval Research, Program Element 0602435N.
Funding for A. Bogdanoff provided by the Department of Defense (DoD)
through the Naval Research Enterprise Intern Program (NREIP) and
National Defense Science and Engineering Graduate (NDSEG) Fellowship
Program. AMSR-E data are produced by Remote Sensing Systems and
sponsored by the NASA Earth Science MEaSUREs DISCOVER Project and the
AMSR-E Science Team. Data are available at www.remss.com. We would like
to thank Didier Tanre and Brent Holben for their efforts in establishing
and maintaining the Cape Verde and Anmyon AERONET sites, respectively.
The authors would also like to thank the three anonymous reviewers for
their thoughtful reviews and helpful comments.
NR 62
TC 3
Z9 3
U1 1
U2 18
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 0034-4257
EI 1879-0704
J9 REMOTE SENS ENVIRON
JI Remote Sens. Environ.
PD MAR 15
PY 2015
VL 159
BP 1
EP 13
DI 10.1016/j.rse.2014.12.002
PG 13
WC Environmental Sciences; Remote Sensing; Imaging Science & Photographic
Technology
SC Environmental Sciences & Ecology; Remote Sensing; Imaging Science &
Photographic Technology
GA CF7PO
UT WOS:000352749000001
ER
PT J
AU Breckenfeld, E
Kim, H
Auyeung, RCY
Charipar, N
Serra, P
Pique, A
AF Breckenfeld, E.
Kim, H.
Auyeung, R. C. Y.
Charipar, N.
Serra, P.
Pique, A.
TI Laser-induced forward transfer of silver nanopaste for microwave
interconnects
SO APPLIED SURFACE SCIENCE
LA English
DT Article
DE Laser-induced forward transfer; Ag nanopaste; Additive manufacturing;
Microwave interconnects; Laser printing
ID NANOPARTICLES INK; DIRECT-WRITE
AB We explore the effect of variations in laser fluence and donor-receiver substrate distance on the laser-induced forward transfer technique for high viscosity Ag nanopaste. By transferring 50 mu m x 50 mu m voxels with thicknesses between 0.8 and 8.7 mu m at different laser fluences, we are able to systematically determine a thickness-fluence regime for successful transfer that widens with increasing voxel thickness. We use these results to study congruent transfer of square voxels with lateral dimensions spanning 2 orders of magnitude: 5 mu m x 5 mu m, 50 mu m x 50 mu m, and 500 mu m x 500 mu m. We conclude by linking a multitude of voxels together in 1 mm and 3 mm lines to fabricate the center conductor in coplanar waveguides (CPWs) with relatively low loss up to 10 GHz. (C) 2015 Elsevier B.V. All rights reserved.
C1 [Breckenfeld, E.] Naval Res Lab, Natl Res Council, Washington, DC 20375 USA.
[Kim, H.; Auyeung, R. C. Y.; Charipar, N.; Pique, A.] Naval Res Lab, Mat Sci & Technol Div, Washington, DC 20375 USA.
[Serra, P.] Univ Barcelona, Dept Fis Aplicada & Opt, E-08028 Barcelona, Spain.
RP Breckenfeld, E (reprint author), Naval Res Lab, Natl Res Council, Washington, DC 20375 USA.
EM eric.brekenfeld.ctr@nrl.navy.mil
OI Serra, Pere/0000-0002-0676-1447
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 21
TC 9
Z9 9
U1 1
U2 30
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 MAR 15
PY 2015
VL 331
BP 254
EP 261
DI 10.1016/j.apsusc.2015.01.079
PG 8
WC Chemistry, Physical; Materials Science, Coatings & Films; Physics,
Applied; Physics, Condensed Matter
SC Chemistry; Materials Science; Physics
GA CC2AC
UT WOS:000350145700034
ER
PT J
AU Harmon, SR
Mckinney, JD
AF Harmon, Sharon R.
Mckinney, Jason D.
TI Precision Broadband RF Signal Recovery in Subsampled Analog Optical
Links
SO IEEE PHOTONICS TECHNOLOGY LETTERS
LA English
DT Article
DE Microwave photonics; ultra-wideband; broadband; multi-octave; optical
subsampling; disambiguation
ID MODULATORS
AB We present a novel technique for ultrawideband RF disambiguation where we are able to determine the precise Nyquist band from which an optically sampled, and therefore downconverted signal originated. This is accomplished by applying a discrete perturbation to the sampling rate, and measuring the magnitude and direction of the shift in signal location within the fundamental Nyquist band. Once the Nyquist band has been determined, the exact signal frequency can also be recovered. We demonstrate extremely accurate multioctave signal recovery over 1 MHz-40 GHz.
C1 [Harmon, Sharon R.] Sotera Def Solut Inc, Herndon, VA 20171 USA.
[Mckinney, Jason D.] 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; jason.mckinney@nrl.navy.mil
NR 10
TC 0
Z9 0
U1 1
U2 4
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1041-1135
EI 1941-0174
J9 IEEE PHOTONIC TECH L
JI IEEE Photonics Technol. Lett.
PD MAR 15
PY 2015
VL 27
IS 6
BP 620
EP 623
DI 10.1109/LPT.2014.2386657
PG 4
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA CC4UR
UT WOS:000350349900015
ER
PT J
AU Giri, A
Gaskins, JT
Donovan, BF
Szwejkowski, C
Warzoha, RJ
Rodriguez, MA
Ihlefeld, J
Hopkins, PE
AF Giri, Ashutosh
Gaskins, John T.
Donovan, Brian F.
Szwejkowski, Chester
Warzoha, Ronald J.
Rodriguez, Mark A.
Ihlefeld, Jon
Hopkins, Patrick E.
TI Mechanisms of nonequilibrium electron-phonon coupling and thermal
conductance at interfaces
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID PICOSECOND LIGHT-PULSES; KAPITZA CONDUCTANCE; LATTICE TEMPERATURES;
BOUNDARY SCATTERING; HEAT-TRANSPORT; METALS; RELAXATION; FEMTOSECOND;
DYNAMICS; FILMS
AB We study the electron and phonon thermal coupling mechanisms at interfaces between gold films with and without Ti adhesion layers on various substrates via pump-probe time-domain thermoreflectance. The coupling between the electronic and the vibrational states is increased by more than a factor of five with the inclusion of an similar to 3 nm Ti adhesion layer between the Au film and the nonmetal substrate. Furthermore, we show an increase in the rate of relaxation of the electron system with increasing electron and lattice temperatures induced by the laser power and attribute this to enhanced electron-electron scattering, a transport channel that becomes more pronounced with increased electron temperatures. The inclusion of the Ti layer also results in a linear dependence of the electron-phonon relaxation rate with temperature, which we attribute to the coupling of electrons at and near the Ti/substrate interface. This enhanced electron-phonon coupling due to electron-interface scattering is shown to have negligible influence on the Kapitza conductances between the Au/Ti and the substrates at longer time scales when the electrons and phonons in the metal have equilibrated. These results suggest that only during highly nonequilibrium conditions between the electrons and phonons (T-e >> T-p) does electron-phonon scattering at an interface contribute to thermal boundary conductance. (C) 2015 AIP Publishing LLC.
C1 [Giri, Ashutosh; Gaskins, John T.; Donovan, Brian F.; Szwejkowski, Chester; Hopkins, Patrick E.] Univ Virginia, Dept Mech & Aerosp Engn, Charlottesville, VA 22904 USA.
[Warzoha, Ronald J.] US Naval Acad, Dept Mech Engn, Annapolis, MD 21401 USA.
[Ihlefeld, Jon] Sandia Natl Labs, Albuquerque, NM 87123 USA.
RP Giri, A (reprint author), Univ Virginia, Dept Mech & Aerosp Engn, Charlottesville, VA 22904 USA.
EM phopkins@virginia.edu
OI Warzoha, Ronald/0000-0002-5454-4551
FU Air Force Office of Scientific Research under AFOSR [FA9550-13-1-0067,
FA9550-15-1-0079]; Laboratory Directed Research and Development (LDRD)
program at Sandia National Laboratories; United States Department of
Energy's National Nuclear Security Administration [DE-AC04-94AL85000]
FX This material is based upon work supported by the Air Force Office of
Scientific Research under AFOSR Award Nos. FA9550-13-1-0067 and
FA9550-15-1-0079. This work was also supported by the Laboratory
Directed Research and Development (LDRD) program at Sandia National
Laboratories. Sandia National Laboratories is a multiprogram laboratory
managed and operated by Sandia Corporation, a wholly owned subsidiary of
Lockheed Martin Company, for the United States Department of Energy's
National Nuclear Security Administration under Contract No.
DE-AC04-94AL85000. P.E.H and A.G gratefully acknowledge Professor D.G.
Cahill for fruitful discussions.
NR 66
TC 5
Z9 5
U1 4
U2 39
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 MAR 14
PY 2015
VL 117
IS 10
AR 105105
DI 10.1063/1.4914867
PG 9
WC Physics, Applied
SC Physics
GA CD9UB
UT WOS:000351442900056
ER
PT J
AU Lee, WK
Whitener, KE
Robinson, JT
Sheehan, PE
AF Lee, Woo-Kyung
Whitener, Keith E., Jr.
Robinson, Jeremy T.
Sheehan, Paul E.
TI Patterning Magnetic Regions in Hydrogenated Graphene Via E-Beam
Irradiation
SO ADVANCED MATERIALS
LA English
DT Article
ID REDUCTION; FUNCTIONALIZATION; FLUOROGRAPHENE; FLUORIDE; GRAPHANE
C1 [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 Lee, WK (reprint author), US Naval Res Lab, Div Chem, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM woo.lee@nrl.navy.mil
RI Sheehan, Paul/B-4793-2010
OI Sheehan, Paul/0000-0003-2668-4124
FU NRL Nanoscience Institute; Office of Naval Research [001412WX21684];
National Research Council
FX This work was supported by the NRL Nanoscience Institute and the Office
of Naval Research (Grant N0. 001412WX21684). W.K.L. and P.E.S.
acknowledge helpful discussion with Adam Friedman of Electronics Science
and Engineering Division in Naval Research Laboratory. W.K.L. thanks
Arnaldo Laracuente of Chemistry Division in Naval Research Laboratory
for use of his UHV SEM. K.E.W. appreciates the support of the National
Research Council.
NR 31
TC 14
Z9 14
U1 9
U2 64
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA BOSCHSTRASSE 12, D-69469 WEINHEIM, GERMANY
SN 0935-9648
EI 1521-4095
J9 ADV MATER
JI Adv. Mater.
PD MAR 11
PY 2015
VL 27
IS 10
BP 1774
EP +
DI 10.1002/adma.201404144
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 CD0II
UT WOS:000350754100019
PM 25594531
ER
PT J
AU Goswami, R
Pande, CS
AF Goswami, R.
Pande, C. S.
TI Investigations of crack-dislocation interactions ahead of mode-III crack
SO MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES
MICROSTRUCTURE AND PROCESSING
LA English
DT Article
DE Crack tip dislocations; TEM; Modeling
ID PLASTIC ZONE; ELECTRON-MICROSCOPE; TEM OBSERVATIONS; TIP; FRACTURE;
EMISSION; ALUMINUM
AB Transmission electron microscopy was employed to investigate the configuration of dislocations emitted by a sharp crack in Al 1100 and Ni base superalloy in part to understand the role of different stacking fault energies. A dislocation free zone and a plastic zone were observed ahead of the cracks in both cases with different dislocation configurations. The experimentally measured values of these zones are in reasonably good agreement with models of crack-dislocation configuration based on a continuum distribution of dislocations ahead of the crack. However, these models fail to predict the total number of emitted dislocations in both cases, underlying the need for better analytical models. Published by Elsevier B.V.
C1 [Goswami, R.; Pande, C. S.] US Navy, Res Lab, Multifunct Mat Mat Sci & Technol Div, Washington, DC 20375 USA.
RP Goswami, R (reprint author), US Navy, Res Lab, Multifunct Mat Mat Sci & Technol Div, Washington, DC 20375 USA.
EM Ramasis.Goswami@nrl.navy.mil
FU Office of Naval Research (ONR) through the Naval Research Laboratory's
6.1 Research Program
FX Funding for this project was provided by the Office of Naval Research
(ONR) through the Naval Research Laboratory's 6.1 Research Program.
NR 23
TC 1
Z9 1
U1 1
U2 6
PU ELSEVIER SCIENCE SA
PI LAUSANNE
PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND
SN 0921-5093
EI 1873-4936
J9 MAT SCI ENG A-STRUCT
JI Mater. Sci. Eng. A-Struct. Mater. Prop. Microstruct. Process.
PD MAR 11
PY 2015
VL 627
BP 217
EP 222
DI 10.1016/j.msea.2014.12.113
PG 6
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary;
Metallurgy & Metallurgical Engineering
SC Science & Technology - Other Topics; Materials Science; Metallurgy &
Metallurgical Engineering
GA CD0QS
UT WOS:000350779600026
ER
PT J
AU He, XH
Aglio, T
Deschamps, JR
Rai, R
Xue, FT
AF He, Xinhua
Aglio, Tharcilla
Deschamps, Jeffrey R.
Rai, Rachita
Xue, Fengtian
TI Synthesis of 1,2-dihydro-2-oxo-4-quinolinyl phosphates from
2-acyl-benzoic acids
SO TETRAHEDRON LETTERS
LA English
DT Article
DE Phosphoric ester; Quinolinone; 2-Acyl-benzoic acid; Curtius
rearrangement; Phosphoryl aside
ID PERKOW REACTION; DERIVATIVES; COUPLINGS; PATHWAYS; AZIDES
AB We report a facile synthesis of 1,2-dihydro-2-oxo-4-quinolinyl phosphates (1a-l) starting from 2-acylbenzoic acids (2a-l) in the presence of phosphoryl azides via a one-pot cascade reaction involving a Curtius rearrangement, an intramolecular nucleophilic addition of the enol carbon to the isocyanate intermediate, and an addition-elimination of the enol oxygen to the phosphoryl aside. During the reaction three new bonds are formed under mild conditions to yield 1,2-dihydro-2-oxo-4-quinolinyl phosphates in modest yields. (C) 2015 Elsevier Ltd. All rights reserved.
C1 [He, Xinhua; Aglio, Tharcilla; Rai, Rachita; Xue, Fengtian] Univ Maryland, Sch Pharm, Dept Pharmaceut Sci, Baltimore, MD 21201 USA.
[Deschamps, Jeffrey R.] Naval Res Lab, Washington, DC 20375 USA.
RP Xue, FT (reprint author), Univ Maryland, Sch Pharm, Dept Pharmaceut Sci, 20 Penn St, Baltimore, MD 21201 USA.
EM fxue@rx.umaryland.edu
FU Department of Pharmaceutical Sciences, University of Maryland School of
Pharmacy; NIDA through Interagency Agreement [Y1-DA1101]; Naval Research
Laboratory (NRL)
FX We gratefully acknowledge funding from the Department of Pharmaceutical
Sciences, University of Maryland School of Pharmacy. The X-ray
crystallographic work was supported by NIDA through Interagency
Agreement #Y1-DA1101 with the Naval Research Laboratory (NRL).
NR 21
TC 0
Z9 0
U1 1
U2 7
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0040-4039
J9 TETRAHEDRON LETT
JI Tetrahedron Lett.
PD MAR 11
PY 2015
VL 56
IS 11
BP 1441
EP 1444
DI 10.1016/j.tetlet.2015.01.188
PG 4
WC Chemistry, Organic
SC Chemistry
GA CC7AK
UT WOS:000350519900035
PM 25937677
ER
PT J
AU Rosenberg, MJF
van der Werf, PP
Aalto, S
Armus, L
Charmandaris, V
Diaz-Santos, T
Evans, AS
Fischer, J
Gao, Y
Gonzalez-Alfonso, E
Greve, TR
Harris, AI
Henkel, C
Israel, FP
Isaak, KG
Kramer, C
Meijerink, R
Naylor, DA
Sanders, DB
Smith, HA
Spaans, M
Spinglio, L
Stacey, GJ
Veenendaal, I
Veilleux, S
Walter, F
Weiss, A
Wiedner, MC
van der Wiel, MHD
Xilouris, EM
AF Rosenberg, M. J. F.
van der Werf, P. P.
Aalto, S.
Armus, L.
Charmandaris, V.
Diaz-Santos, T.
Evans, A. S.
Fischer, J.
Gao, Y.
Gonzalez-Alfonso, E.
Greve, T. R.
Harris, A. I.
Henkel, C.
Israel, F. P.
Isaak, K. G.
Kramer, C.
Meijerink, R.
Naylor, D. A.
Sanders, D. B.
Smith, H. A.
Spaans, M.
Spinglio, L.
Stacey, G. J.
Veenendaal, I.
Veilleux, S.
Walter, F.
Weiss, A.
Wiedner, M. C.
van der Wiel, M. H. D.
Xilouris, E. M.
TI THE HERSCHEL COMPREHENSIVE (U)LIRG EMISSION SURVEY (HERCULES): CO
LADDERS, FINE STRUCTURE LINES, AND NEUTRAL GAS COOLING
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE galaxies: individual (ULIRGs); galaxies: ISM; molecular data;
photon-dominated region (PDR); submillimeter: ISM
ID ULTRALUMINOUS INFRARED GALAXIES; FOURIER-TRANSFORM SPECTROMETER;
SPACE-OBSERVATORY MEASUREMENTS; ACTIVE GALACTIC NUCLEI; DENSE MOLECULAR
GAS; STAR-FORMATION; ARP 220; PHYSICAL CONDITIONS; MARKARIAN 231;
WATER-VAPOR
AB (Ultra) luminous infrared galaxies ((U)LIRGs) are objects characterized by their extreme infrared (8-1000 mu m) luminosities (L-LIRG > 10(11) L-circle dot and L-ULIRG > 10(12) L-circle dot). The Herschel Comprehensive ULIRG Emission Survey (PI: van derWerf) presents a representative flux-limited sample of 29 (U)LIRGs that spans the full luminosity range of these objects (10(11)L(circle dot) <= L-IR <= 10(13)L(circle dot)). With the Herschel Space Observatory, we observe [CII] 157 mu m, [O I] 63 mu m, and [O I] 145 mu m line emission with Photodetector Array Camera and Spectrometer, CO J = 4-3 through J = 13-12, [C I] 370 mu m, and [C I] 609 mu m with SPIRE, and low-J CO transitions with ground-based telescopes. The CO ladders of the sample are separated into three classes based on their excitation level. In 13 of the galaxies, the [O I] 63 mu m emission line is self absorbed. Comparing the CO excitation to the InfraRed Astronomical Satellite 60/100 mu m ratio and to far infrared luminosity, we find that the CO excitation is more correlated to the far infrared colors. We present cooling budgets for the galaxies and find fine-structure line flux deficits in the [C II], [Si II], [O I], and [C I] lines in the objects with the highest far IR fluxes, but do not observe this for CO 4 <= J(upp) <= 13. In order to study the heating of the molecular gas, we present a combination of three diagnostic quantities to help determine the dominant heating source. Using the CO excitation, the CO J = 1-0 linewidth, and the active galactic nucleus (AGN) contribution, we conclude that galaxies with large CO linewidths always have high-excitation CO ladders, and often low AGN contributions, suggesting that mechanical heating is important.
C1 [Rosenberg, M. J. F.; van der Werf, P. P.; Israel, F. P.; Meijerink, R.] Leiden Univ, Leiden Observ, NL-2300 RA Leiden, Netherlands.
[Aalto, S.] Chalmers, Dept Earth & Space Sci, Onsala Observ, SE-43994 Onsala, Sweden.
[Armus, L.; Diaz-Santos, T.] CALTECH, Spitzer Sci Ctr, Pasadena, CA 91125 USA.
[Charmandaris, V.; Xilouris, E. M.] Natl Observ Athens, Inst Astron Astrophys Space Applicat & Remote Sen, Athens 15236, Greece.
[Charmandaris, V.] Univ Crete, Dept Phys, Iraklion 71003, Greece.
[Charmandaris, V.] Observ Paris, LERMA, F-75014 Paris, France.
[Evans, A. S.] Univ Virginia, Dept Astron, Charlottesville, VA 22904 USA.
[Evans, A. S.] Natl Radio Astron Observ, Charlottesville, VA 22903 USA.
[Fischer, J.] Naval Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
[Gao, Y.] Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China.
[Gonzalez-Alfonso, E.] Univ Alcala De Henares, Dept Fis & Matemat, E-28871 Alcala De Henares, Madrid, Spain.
[Greve, T. R.] UCL, Dept Phys & Astron, London WC1E 6BT, England.
[Harris, A. I.; Veilleux, S.] Univ Maryland, Dept Astron, College Pk, MD 20742 USA.
[Henkel, C.; Weiss, A.] Max Planck Inst Radioastron, D-53121 Bonn, Germany.
[Henkel, C.] King Abdulaziz Univ, Dept Astron, Jeddah 21589, Saudi Arabia.
[Isaak, K. G.] ESTEC SRE S, Sci Support Off, NL-2201 AZ Noordwijk, Netherlands.
[Kramer, C.] IRAM, Nucleo Cent, E-18012 Granada, Spain.
[Naylor, D. A.; Veenendaal, I.; van der Wiel, M. H. D.] Univ Lethbridge, Inst Space Imaging Sci, Dept Phys & Astron, Lethbridge, AB T1K 3M4, Canada.
[Sanders, D. B.] Univ Hawaii, Inst Astron, Honolulu, HI 96822 USA.
[Smith, H. A.] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA.
[Spaans, M.] Univ Groningen, Kapteyn Astron Inst, NL-9700 AV Groningen, Netherlands.
[Spinglio, L.] INAF, Ist Astros & Planetol Spaziali, I-00133 Rome, Italy.
[Stacey, G. J.] Cornell Univ, Dept Astron, Ithaca, NY 14853 USA.
[Veilleux, S.] Univ Maryland, Joint Space Sci Inst, College Pk, MD 20742 USA.
[Walter, F.] Max Planck Inst Astron, D-69117 Heidelberg, Germany.
RP Rosenberg, MJF (reprint author), Leiden Univ, Leiden Observ, POB 9513, NL-2300 RA Leiden, Netherlands.
EM rosenberg@strw.leidenuniv.nl
RI Charmandaris, Vassilis/A-7196-2008; van der Wiel, Matthijs/M-4531-2014;
Xilouris, Emmanuel/K-9459-2013;
OI Charmandaris, Vassilis/0000-0002-2688-1956; van der Wiel,
Matthijs/0000-0002-4325-3011; Fischer, Jacqueline/0000-0001-6697-7808
FU NASA [NNX12AI55G]; JPL RSA [717437, 717353]; Canadian Space Agency
(CSA); Natural Sciences and Engineering Research Council of Canada
(NSERC)
FX We thank Edward Polehampton for his help reducing the SPIRE
observations. Basic research in infrared astronomy at the Naval Research
Laboratory is funded by the Office of Naval Research. J.F. also
acknowledges partial support from the NHSC/JPL subcontract 1371112.
SPIRE has been developed by a consortium of institutes led by Cardiff
University (UK) and including: University of Lethbridge (Canada); NAOC
(China); CEA, LAM(France); IFSI, University of Padua (Italy); IAC
(Spain); Stockholm Observatory (Sweden); Imperial College London, RAL,
UCL-MSSL, UKATC, University of Sussex (UK); and Caltech, JPL, NHSC,
University of Colorado (USA). This development has been supported by
national funding agencies: CSA (Canada); NAOC (China); CEA, CNES, CNRS
(France); ASI (Italy); MCINN (Spain); SNSB (Sweden); STFC, UKSA (UK);
and NASA (USA). The Herschel spacecraft was designed, built, tested, and
launched under a contract to ESA managed by the Herschel/Planck Project
team by an industrial consortium under the overall responsibility of the
prime contractor Thales Alenia Space (Cannes), and including Astrium
(Friedrichshafen) responsible for the payload module and for system
testing at spacecraft level, Thales Alenia Space (Turin) responsible for
the service module, and Astrium (Toulouse) responsible for the
telescope, with in excess of a hundred subcontractors. HCSS/HSpot/HIPE
is a joint development (are joint developments) by the Herschel Science
Ground Segment Consortium, consisting of ESA, the NASA Herschel Science
Center, and the HIFI, PACS and SPIRE consortia. H.A.S. acknowledges
partial support from NASA grant NNX12AI55G and JPL RSA contract 717437
and 717353. M.H.D.v.d.W. is supported by the Canadian Space Agency (CSA)
and the Natural Sciences and Engineering Research Council of Canada
(NSERC).
NR 93
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U1 0
U2 5
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 MAR 10
PY 2015
VL 801
IS 2
AR 72
DI 10.1088/0004-637X/801/2/72
PG 18
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA CD3GE
UT WOS:000350965500001
ER
PT J
AU Mait, JN
Mahalanobis, A
Neifeld, MA
Athale, RA
AF Mait, Joseph N.
Mahalanobis, Abhijit
Neifeld, Mark A.
Athale, Ravindra A.
TI Compressive Sensing Focus Issue: introduction
SO APPLIED OPTICS
LA English
DT Editorial Material
C1 [Mait, Joseph N.] US Army Res Lab, RDRL D, Adelphi, MD 20783 USA.
[Mahalanobis, Abhijit] Lockheed Martin Corp, Orlando, FL 32819 USA.
[Neifeld, Mark A.] Univ Arizona, Dept Elect & Comp Engn, Tucson, AZ 85721 USA.
[Athale, Ravindra A.] Off Naval Res, Arlington, VA 22203 USA.
RP Mait, JN (reprint author), US Army Res Lab, RDRL D, 2800 Powder Mill Rd, Adelphi, MD 20783 USA.
EM joseph.n.mait2.civ@mail.mil
NR 2
TC 1
Z9 1
U1 2
U2 8
PU OPTICAL SOC AMER
PI WASHINGTON
PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA
SN 1559-128X
EI 2155-3165
J9 APPL OPTICS
JI Appl. Optics
PD MAR 10
PY 2015
VL 54
IS 8
BP CS1
EP CS3
DI 10.1364/AO.54.000CS1
PG 3
WC Optics
SC Optics
GA CC9AE
UT WOS:000350658900004
PM 25968401
ER
PT J
AU Hamilton, B
Dean, C
Kurata, N
Vella, K
Soloviev, A
Tartar, A
Shivji, M
Matt, S
Perrie, W
Lehner, S
Zhang, B
AF Hamilton, B.
Dean, C.
Kurata, N.
Vella, K.
Soloviev, A.
Tartar, A.
Shivji, M.
Matt, S.
Perrie, W.
Lehner, S.
Zhang, B.
TI Surfactant Associated Bacteria in the Sea Surface Microlayer: Case
Studies in the Straits of Florida and the Gulf of Mexico
SO CANADIAN JOURNAL OF REMOTE SENSING
LA English
DT Article; Proceedings Paper
CT IEEE Joint International Geoscience and Remote Sensing Symposium
(IGARSS) / 35th Canadian Symposium on Remote Sensing
CY JUL 13-18, 2014
CL Quebec City, CANADA
SP IEEE, Inst Elect & Elect Engineers, Geoscience & Remote Sensing Soc, Canadian Remote Sensing Soc
AB Abstract. Certain genera of bacteria found in the near-surface layer of the ocean can be involved in the production and decay of surface active materials (surfactants), resulting in slicks on the sea surface. Slicks can be observed with airborne or satellite-based synthetic aperture radar (SAR). Here, we report results that point to a connection between the presence of surfactant-producing bacteria in the upper layer of the ocean and slicks, observed visually and in SAR imagery of the sea surface. From DNA analysis of in situ samples taken during RADARSAT-2 satellite overpass in the Straits of Florida during the 2010 Deepwater Horizon oil spill, we found a higher abundance of known surfactant-producing bacteria in the slick compared to the nonslick area; furthermore, a higher abundance of these bacteria were observed in the water column compared to those taken from the sea surface. Surfactants produced by marine bacteria in the organic matter-rich water column can then be transported to the sea surface through diffusion or advection. Within a certain range of wind-wave conditions, the organic materials (such as dissolved oil) in the water column processed by surfactant-associated bacteria can, thus, be monitored with high-resolution remote sensing techniques.
Resume. Certains genres de bacteries presents pres de la surface de l'ocean peuvent etre impliques dans la production et la decomposition de matieres actives a la surface (agents tensioactifs), causant des films sur la surface de l'ocean. Ces films peuvent etre observes a l'aide de radars a synthese d'ouverture (RSO) aeroportes ou satellitaires. Ici, nous rapportons des resultats qui suggerent un lien entre la presence de bacteries productrices d'agents tensioactifs dans la couche superieure de l'ocean et des films observes visuellement et dans l'imagerie RSO de la surface de l'ocean. A partir d'analyses d'ADN provenant d'echantillons in situ pris lors du passage du satellite RADARSAT-2 au-dessus du detroit de Floride au cours du deversement de petrole de la plateforme Deepwater Horizon en 2010, nous avons trouve une plus grande abondance de bacteries connues comme productrices d'agents tensioactifs dans la nappe par rapport a la zone a l'exterieur de la nappe. En outre, une plus grande abondance de ces bacteries a ete observee dans la colonne d'eau par rapport a la surface. Les agents tensioactifs produits par les bacteries marines dans la colonne d'eau riche en matiere organique peuvent ensuite etre transportes a la surface de l'ocean par diffusion ou advection. Dans une certaine gamme de conditions de vent et de vagues, les matieres organiques (tels que le petrole dissous) dans la colonne d'eau transformees par des bacteries qui sont associees a des agents tensioactifs peuvent ainsi etre surveillees par des techniques de teledetection a haute resolution.
C1 [Hamilton, B.; Dean, C.; Kurata, N.; Vella, K.; Soloviev, A.; Shivji, M.] Nova SE Univ, Oceanog Ctr, Dania, FL 33004 USA.
[Soloviev, A.] Univ Miami, Rosenstiel Sch Marine & Atmospher Sci, Miami, FL 33149 USA.
[Tartar, A.] Nova SE Univ, Div Math Sci & Technol, Ft Lauderdale, FL 33314 USA.
[Matt, S.] Naval Res Lab, Stennis Space Ctr, MS USA.
[Perrie, W.] Fisheries & Oceans Canada, Bedford Inst Oceanog, Halifax, NS, Canada.
[Lehner, S.] German Aerosp Ctr DLR, Remote Sensing Technol Inst, Bremen, Germany.
[Zhang, B.] Nanjing Univ Informat Sci & Technol, Nanjing, Jiangsu, Peoples R China.
RP Hamilton, B (reprint author), Nova SE Univ, Oceanog Ctr, Dania, FL 33004 USA.
EM bh755@nova.edu
FU GoMRI project "Consortium for advanced research on transport of
hydrocarbon in the environment"; Nova Southeastern University (NSU)
President's Faculty Research and Development [335328]; NRL Karle
Fellowship
FX We acknowledge support from the GoMRI project "Consortium for advanced
research on transport of hydrocarbon in the environment" (PI: Tamay
Ozgokmen, UM RSMAS). Funding for this project was also provided through
the Nova Southeastern University (NSU) President's Faculty Research and
Development Grant No 335328. S. Matt acknowledges support from a NRL
Karle Fellowship.
NR 21
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U1 3
U2 16
PU CANADIAN AERONAUTICS & SPACE INST
PI KANATA
PA 350 TERRY FOX DR, STE 104, KANATA, ON K2K 2W5, CANADA
SN 0703-8992
EI 1712-7971
J9 CAN J REMOTE SENS
JI Can. J. Remote Sens.
PD MAR 4
PY 2015
VL 41
IS 2
SI SI
BP 135
EP 143
DI 10.1080/07038992.2015.1048849
PG 9
WC Remote Sensing
SC Remote Sensing
GA CM0JS
UT WOS:000357364800007
ER
PT J
AU Daniele, MA
Knight, AJ
Roberts, SA
Radom, K
Erickson, JS
AF Daniele, Michael A.
Knight, Adrian J.
Roberts, Steven A.
Radom, Kathryn
Erickson, Jeffrey S.
TI Sweet Substrate: A Polysaccharide Nanocomposite for Conformal Electronic
Decals
SO ADVANCED MATERIALS
LA English
DT Article
ID ENERGY-STORAGE DEVICES; THIN-FILM TRANSISTORS; STRETCHABLE ELECTRONICS;
EPIDERMAL ELECTRONICS; DIELECTRIC-PROPERTIES; FLEXIBLE ELECTRONICS;
CONDUCTIVE PAPER; TRANSPARENT; ULTRATHIN; DESIGN
AB A conformal electronic decal based on a polysaccharide circuit board (PCB) is fabricated and characterized. The PCBs are laminates composed of bioderived sugars - nanocellulose and pullulan. The PCB and decal transfer are a bioactive material system for supporting electronic devices capable of conforming to biological surfaces.
C1 [Daniele, Michael A.; Erickson, Jeffrey S.] US Naval Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 USA.
[Knight, Adrian J.; Roberts, Steven A.; Radom, Kathryn] US Naval Res Lab, Naval Res Enterprise Internship Program, Washington, DC 20375 USA.
RP Daniele, MA (reprint author), US Naval Res Lab, Ctr Bio Mol Sci & Engn, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM michael.daniele@nrl.navy.mil
RI Erickson, Jeffrey/F-6273-2011
FU Naval Research Laboratory (NRL); Office of Naval Research (ONR)
[MA041-06-41-9899]
FX This work was funded by the Naval Research Laboratory (NRL) and Office
of Naval Research (ONR) 6.1 work unit MA041-06-41-9899. A.J.K., S.A.R.,
and K.R. contributed to this work through the Naval Research Enterprise
Internship Program (NREIP). The views are those of the authors and do
not represent the opinion or policy of the US Navy or Department of
Defense.
NR 43
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Z9 9
U1 9
U2 59
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA POSTFACH 101161, 69451 WEINHEIM, GERMANY
SN 0935-9648
EI 1521-4095
J9 ADV MATER
JI Adv. Mater.
PD MAR 4
PY 2015
VL 27
IS 9
BP 1600
EP +
DI 10.1002/adma.201404445
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 CC7IO
UT WOS:000350541100016
PM 25472799
ER
PT J
AU Alidoust, M
Halterman, K
AF Alidoust, Mohammad
Halterman, Klaus
TI Spontaneous edge accumulation of spin currents in finite-size
two-dimensional diffusive spin-orbit coupled SFS heterostructures
SO NEW JOURNAL OF PHYSICS
LA English
DT Article
DE Josephson junctions; spin transport; proximity effects; spin-orbit
coupling; spin triplet pairings
ID SUPERCONDUCTOR-FERROMAGNET HETEROSTRUCTURES; TOPOLOGICAL INSULATORS;
MAJORANA FERMIONS; SEMICONDUCTORS; ELECTRON; COHERENCE; PHYSICS; METALS
AB We theoretically study spin and charge currents through finite-size two-dimensional s-wave superconductor/uniform ferromagnet/s-wave superconductor (S/F/S) junctions with intrinsic spin-orbit interactions (ISOIs) using a quasiclassical approach. Considering experimentally realistic parameters, we demonstrate that the combination of spontaneously broken time-reversal symmetry and lack of inversion symmetry can result in spontaneously accumulated spin currents at the edges of finite-size two-dimensional magnetic S/F/S hybrids. Due to the spontaneous edge spin accumulation, the corners of the F wire host the maximum spin current density. We further reveal that this type edge phenomena is robust and independent of either the actual type of ISOIs or exchange field orientation. Moreover, we study the spin current-phase relations in these diffusive spin-orbit coupled S/F/S junctions. Our results unveil net spin currents, not accompanied by charge supercurrents, that spontaneously accumulate at the sample edges through a modulating superconducting phase difference. Finally, we discuss possible experimental implementations to observe these edge phenomena.
C1 [Alidoust, Mohammad] Univ Basel, Dept Phys, CH-4056 Basel, Switzerland.
[Halterman, Klaus] Naval Air Warfare Ctr, Michelson Lab, Div Phys, China Lake, CA 93555 USA.
[Alidoust, Mohammad] Univ Isfahan, Dept Phys, Fac Sci, Esfahan 8174673441, Iran.
RP Alidoust, M (reprint author), Univ Basel, Dept Phys, Klingelbergstr 82, CH-4056 Basel, Switzerland.
EM phymalidoust@gmail.com; klaus.halterman@navy.mil
OI Halterman, Klaus/0000-0002-6355-3134; Alidoust,
Mohammad/0000-0002-1554-687X
FU ONR; DOD HPCMP
FX We would like to thank G Sewell for helpful discussions in the numerical
parts of this work. We also thank F S Bergeret for valuable comments,
suggestions, and numerous discussions which helped us to improve the
manuscript. KH is supported in part by ONR and by a grant of
supercomputer resources provided by the DOD HPCMP.
NR 114
TC 12
Z9 12
U1 2
U2 17
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 MAR 3
PY 2015
VL 17
AR 033001
DI 10.1088/1367-2630/17/3/033001
PG 12
WC Physics, Multidisciplinary
SC Physics
GA CF9PU
UT WOS:000352898500001
ER
PT J
AU Gilliland, CH
AF Gilliland, C. Herbert
TI The Evil Necessity: British Naval Impressment in the Eighteenth-Century
Atlantic World
SO SCRIBLERIAN AND THE KIT-CATS
LA English
DT Book Review
C1 [Gilliland, C. Herbert] US Naval Acad, Annapolis, MD 21402 USA.
RP Gilliland, CH (reprint author), US Naval Acad, Annapolis, MD 21402 USA.
NR 1
TC 0
Z9 0
U1 0
U2 0
PU NEW YORK UNIV
PI NEW YORK
PA C/O PROF MARILYN GAULL, DEPT ENGLISH, NEW YORK, NY 10003-4556 USA
SN 0036-9640
J9 SCRIBLERIAN KIT-CATS
JI Scriblerian Kit-Cats
PD SPR-FAL
PY 2015
VL 47-48
BP 137
EP 138
PG 2
WC Literature, British Isles
SC Literature
GA CZ1ST
UT WOS:000366886300040
ER
PT J
AU Crum-Cianflone, NF
Wang, X
Weintrob, A
Lalani, T
Bavaro, M
Okulicz, JF
Mende, K
Ellis, M
Agan, BK
AF Crum-Cianflone, Nancy F.
Wang, Xun
Weintrob, Amy
Lalani, Tahaniyat
Bavaro, Mary
Okulicz, Jason F.
Mende, Katrin
Ellis, Michael
Agan, Brian K.
TI Specific Behaviors Predict Staphylococcus aureus Colonization and Skin
and Soft Tissue Infections Among Human Immunodeficiency Virus-Infected
Persons
SO OPEN FORUM INFECTIOUS DISEASES
LA English
DT Article
DE behaviors; colonization; HIV; human immunodeficiency virus; MRSA; risk
factors; skin and soft tissue infections; Staphylococcus aureus
ID METHICILLIN-RESISTANT; RISK-FACTORS; NASAL CARRIAGE; HIV-INFECTION; MRSA
INFECTIONS; HEALTHY-ADULTS; DRUG-USERS; PREVALENCE; ASSOCIATION;
OUTPATIENTS
AB Background. Few data exist on the incidence and risk factors of Staphylococcus aureus colonization and skin and soft tissue infections (SSTIs) among patients infected with human immunodeficiency virus (HIV).
Methods. Over a 2-year period, we prospectively evaluated adults infected with HIV for incident S aureus colonization at 5 body sites and SSTIs. Cox proportional hazard models using time-updated covariates were performed.
Results. Three hundred twenty-two participants had a median age of 42 years (interquartile range, 32-49), an HIV duration of 9.4 years (2.7-17.4), and 58% were on highly active antiretroviral therapy (HAART). Overall, 102 patients (32%) became colonized with S aureus with an incidence rate of 20.6 (95% confidence interval [CI], 16.8-25.0) per 100 person-years [PYs]. Predictors of colonization in the final multivariable model included illicit drug use (hazard ratios [HR], 4.26; 95% CI, 1.33-13.69) and public gym use (HR 1.66, 95% CI, 1.04-2.66), whereas antibacterial soap use was protective (HR, 0.50; 95% CI, 0.32-0.78). In a separate model, perigenital colonization was associated with recent syphilis infection (HR, 4.63; 95% CI, 1.01-21.42). Fifteen percent of participants developed an SSTI (incidence rate of 9.4 cases [95% CI, 6.8-12.7] per 100 PYs). Risk factors for an SSTI included incident S aureus colonization (HR 2.52; 95% CI, 1.35-4.69), public shower use (HR, 2.59; 95% CI, 1.48-4.56), and hospitalization (HR 3.54; 95% CI, 1.67-7.53). The perigenital location for S aureus colonization was predictive of SSTIs. Human immunodeficiency virus-related factors (CD4 count, HIV RNA level, and HAART) were not associated with colonization or SSTIs.
Conclusions. Specific behaviors, but not HIV-related factors, are predictors of colonization and SSTIs. Behavioral modifications may be the most important strategies in preventing S aureus colonization and SSTIs among persons infected with HIV.
C1 [Crum-Cianflone, Nancy F.; Wang, Xun; Weintrob, Amy; Lalani, Tahaniyat; Bavaro, Mary; Okulicz, Jason F.; Mende, Katrin; Agan, Brian K.] Uniformed Serv Univ Hlth Sci, Infect Dis Clin Res Program, Bethesda, MD 20814 USA.
[Ellis, Michael] Uniformed Serv Univ Hlth Sci, Dept Med, Bethesda, MD 20814 USA.
[Crum-Cianflone, Nancy F.; Bavaro, Mary] Naval Med Ctr San Diego, Infect Dis Clin, San Diego, CA 92134 USA.
[Wang, Xun; Mende, Katrin; Agan, Brian K.] Henry M Jackson Fdn Adv Mil Med, Bethesda, MD USA.
[Weintrob, Amy] Walter Reed Army Med Ctr, Infect Dis Clin, Washington, DC 20307 USA.
[Lalani, Tahaniyat] Naval Med Ctr Portsmouth, Infect Dis Clin, Portsmouth, VA USA.
RP Crum-Cianflone, NF (reprint author), Naval Med Ctr San Diego, Clin Invest Dept KCA, 34800 Bob Wilson Dr,Ste 5, San Diego, CA 92134 USA.
EM nancy32red@yahoo.com
NR 41
TC 2
Z9 2
U1 2
U2 2
PU OXFORD UNIV PRESS INC
PI CARY
PA JOURNALS DEPT, 2001 EVANS RD, CARY, NC 27513 USA
SN 2328-8957
J9 OPEN FORUM INFECT DI
JI Open Forum Infect. Dis.
PD SPR
PY 2015
VL 2
IS 2
DI 10.1093/ofid/ofv034
PG 8
WC Infectious Diseases
SC Infectious Diseases
GA CX6BM
UT WOS:000365786200007
ER
PT J
AU Acharya, AR
Thoms, BD
Nepal, N
Eddy, CR
AF Acharya, Ananta R.
Thoms, Brian D.
Nepal, Neeraj
Eddy, Charles R., Jr.
TI Surface structure and surface kinetics of InN grown by plasma-assisted
atomic layer epitaxy: A HREELS study
SO JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
LA English
DT Article
ID THIN-FILMS; HYDROGEN; DESORPTION; ADSORPTION; DEPOSITION; DEFECTS; GAAS
AB The surface bonding configuration and kinetics of hydrogen desorption from InN grown by plasma-assisted atomic layer epitaxy have been investigated. High resolution electron energy loss spectra exhibited loss peaks assigned to a Fuchs-Kliewer surface phonon, N-N and N-H surface species. The surface N-N vibrations are attributed to surface defects. The observation of N-H but no In-H surface species suggested N-terminated InN. Isothermal desorption data were best fit by the first-order desorption kinetics with an activation energy of (0.88 +/- 0.06) eV and pre-exponential factor of (1.5 +/- 0.5) x 10(5) s(-1). (C) 2014 American Vacuum Society.
C1 [Acharya, Ananta R.] Georgia So Univ, Dept Phys, Statesboro, GA 30460 USA.
[Thoms, Brian D.] Georgia State Univ, Dept Phys & Astron, Atlanta, GA 30303 USA.
[Nepal, Neeraj] Amer Assoc Engn Educ, Washington, DC 20034 USA.
[Eddy, Charles R., Jr.] US Naval Res Lab, Div Elect Sci & Technol, Washington, DC 20375 USA.
[Nepal, Neeraj] Naval Res Lab, Washington, DC 20375 USA.
RP Acharya, AR (reprint author), Georgia So Univ, Dept Phys, Statesboro, GA 30460 USA.
EM aacharya@georgiasouthern.edu
FU American Association for Engineering Education-Naval Research
Laboratory; Office of Naval Research
FX Neeraj Nepal gratefully acknowledges the support of the American
Association for Engineering Education-Naval Research Laboratory
Postdoctoral Fellowship program. Work at the U.S. Naval Research
Laboratory was supported by the Office of Naval Research.
NR 27
TC 1
Z9 1
U1 3
U2 24
PU A V S AMER INST PHYSICS
PI MELVILLE
PA STE 1 NO 1, 2 HUNTINGTON QUADRANGLE, MELVILLE, NY 11747-4502 USA
SN 0734-2101
EI 1520-8559
J9 J VAC SCI TECHNOL A
JI J. Vac. Sci. Technol. A
PD MAR
PY 2015
VL 33
IS 2
AR 021401
DI 10.1116/1.4901873
PG 5
WC Materials Science, Coatings & Films; Physics, Applied
SC Materials Science; Physics
GA CJ8GZ
UT WOS:000355739500030
ER
PT J
AU Denning, PJ
Gordon, EE
AF Denning, Peter J.
Gordon, Edward E.
TI A Technician Shortage
SO COMMUNICATIONS OF THE ACM
LA English
DT Editorial Material
C1 [Denning, Peter J.] Naval Postgrad Sch Monterey, Cebrowski Inst informat innovat, Monterey, CA 93943 USA.
RP Denning, PJ (reprint author), Naval Postgrad Sch Monterey, Cebrowski Inst informat innovat, Monterey, CA 93943 USA.
EM pjd@nps.edu; imperialcorp@juno.com
NR 6
TC 1
Z9 1
U1 0
U2 0
PU ASSOC COMPUTING MACHINERY
PI NEW YORK
PA 2 PENN PLAZA, STE 701, NEW YORK, NY 10121-0701 USA
SN 0001-0782
EI 1557-7317
J9 COMMUN ACM
JI Commun. ACM
PD MAR
PY 2015
VL 58
IS 3
BP 28
EP 30
DI 10.1145/2723673
PG 3
WC Computer Science, Hardware & Architecture; Computer Science, Software
Engineering; Computer Science, Theory & Methods
SC Computer Science
GA CC3BR
UT WOS:000350219800012
ER
PT J
AU Moses, WJ
Bowles, JH
Corson, MR
AF Moses, Wesley J.
Bowles, Jeffrey H.
Corson, Michael R.
TI Expected Improvements in the Quantitative Remote Sensing of Optically
Complex Waters with the Use of an Optically Fast Hyperspectral
Spectrometer-A Modeling Study
SO SENSORS
LA English
DT Article
DE F-number; Dyson; HICO; sensor noise; atmospheric correction; coastal
waters; water quality; signal-to-noise ratio (SNR); hyperspectral;
remote sensing
ID TO-NOISE RATIO; ATMOSPHERIC CORRECTION; OCEAN COLOR; SENSOR; ALGORITHM;
ACCURACY; SYSTEMS; IMPACT
AB Using simulated data, we investigated the effect of noise in a spaceborne hyperspectral sensor on the accuracy of the atmospheric correction of at-sensor radiances and the consequent uncertainties in retrieved water quality parameters. Specifically, we investigated the improvement expected as the F-number of the sensor is changed from 3.5, which is the smallest among existing operational spaceborne hyperspectral sensors, to 1.0, which is foreseeable in the near future. With the change in F-number, the uncertainties in the atmospherically corrected reflectance decreased by more than 90% across the visible-near-infrared spectrum, the number of pixels with negative reflectance (caused by over-correction) decreased to almost one-third, and the uncertainties in the retrieved water quality parameters decreased by more than 50% and up to 92%. The analysis was based on the sensor model of the Hyperspectral Imager for the Coastal Ocean (HICO) but using a 30-m spatial resolution instead of HICO's 96 m. Atmospheric correction was performed using Tafkaa. Water quality parameters were retrieved using a numerical method and a semi-analytical algorithm. The results emphasize the effect of sensor noise on water quality parameter retrieval and the need for sensors with high Signal-to-Noise Ratio for quantitative remote sensing of optically complex waters.
C1 [Moses, Wesley J.; Bowles, Jeffrey H.; Corson, Michael R.] Naval Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
RP Moses, WJ (reprint author), Naval Res Lab, Remote Sensing Div, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM wesley.moses@nrl.navy.mil; jeffrey.bowles@nrl.navy.mil;
mike.corson@nrl.navy.mil
OI Moses, Wesley/0000-0003-3551-6093
FU Office of Naval Research through the Karles Fellowship by the U.S. Naval
Research Laboratory (NRL); NASA
FX This research was supported by funds from the Office of Naval Research
through the Karles Fellowship awarded to W. J. Moses by the U.S. Naval
Research Laboratory (NRL) and funds provided to NRL by NASA for
supporting HICO operations.
NR 33
TC 7
Z9 7
U1 4
U2 15
PU MDPI AG
PI BASEL
PA POSTFACH, CH-4005 BASEL, SWITZERLAND
SN 1424-8220
J9 SENSORS-BASEL
JI Sensors
PD MAR
PY 2015
VL 15
IS 3
BP 6152
EP 6173
DI 10.3390/s150306152
PG 22
WC Chemistry, Analytical; Electrochemistry; Instruments & Instrumentation
SC Chemistry; Electrochemistry; Instruments & Instrumentation
GA CH6QK
UT WOS:000354160900077
PM 25781507
ER
PT J
AU Steele, SR
Varma, MG
Prichard, D
Bharucha, AE
Vogler, SA
Erdogan, A
Rao, SSC
Lowry, AC
Lange, EO
Hall, GM
Bleier, JIS
Senagore, AJ
Maykel, J
Chan, SY
Paquette, IM
Audett, MC
Bastawrous, A
Umamaheswaran, P
Fleshman, JW
Caton, G
O'Brien, BS
Nelson, JM
Steiner, A
Garely, A
Noor, N
Desrosiers, L
Kelley, R
Jacobson, NS
Rahimi, S
AF Steele, Scott R.
Varma, Madhulika G.
Prichard, David
Bharucha, Adil E.
Vogler, Sarah A.
Erdogan, Askin
Rao, Satish S. C.
Lowry, Ann C.
Lange, Erin O.
Hall, Glen M.
Bleier, Joshua I. S.
Senagore, Anthony J.
Maykel, Justin
Chan, Sook Y.
Paquette, Ian M.
Audett, Marie C.
Bastawrous, Amir
Umamaheswaran, Preetha
Fleshman, James W.
Caton, Gentry
O'Brien, Brendan S.
Nelson, Jeffery M.
Steiner, Ari
Garely, Alan
Noor, Nabila
Desrosiers, Laurephile
Kelley, Robert
Jacobson, Nina S.
Rahimi, Salma
TI The evolution of evaluation and management of urinary or fecal
incontinence and pelvic organ prolapse
SO CURRENT PROBLEMS IN SURGERY
LA English
DT Review
ID LAPAROSCOPIC VENTRAL RECTOPEXY; EXTERNAL RECTAL PROLAPSE; PERINEAL
STAPLED PROLAPSE; QUALITY-OF-LIFE; POSTERIOR VAGINAL COMPARTMENT;
COST-EFFECTIVENESS ANALYSIS; SACRAL NERVE-STIMULATION; LONG-TERM;
SURGICAL-MANAGEMENT; ABDOMINAL RECTOPEXY
C1 [Steele, Scott R.] Uniformed Serv Univ Hlth Sci, Surg, Ft Lewis, WA 98433 USA.
[Steele, Scott R.] Madigan Army Med Ctr, Colon & Rectal Surg, Ft Lewis, WA USA.
[Varma, Madhulika G.] Univ Calif San Francisco, Sect Colorectal Surg, San Francisco, CA 94143 USA.
[Prichard, David] Mayo Clin, GI Motil, Rochester, MN USA.
[Bharucha, Adil E.] Mayo Clin, Med, Rochester, MN USA.
[Vogler, Sarah A.] Univ Minnesota, Surg, Edina, MN USA.
[Erdogan, Askin] Georgia Regents Univ, Augusta, GA USA.
[Rao, Satish S. C.] Georgia Regents Univ, Digest Hlth Ctr, Augusta, GA USA.
[Lowry, Ann C.] Univ Minnesota, Surg, St Paul, MN 55108 USA.
[Lange, Erin O.] Univ Washington, Surg, Seattle, WA 98195 USA.
[Hall, Glen M.] Case Western Reserve Univ, Cleveland, OH 44106 USA.
[Bleier, Joshua I. S.] Univ Penn, Perelman Sch Med, Surg, Philadelphia, PA 19104 USA.
[Senagore, Anthony J.] Case Western Reserve Univ, Sch Med, Dept Surg, Cleveland, OH 44106 USA.
[Maykel, Justin; Chan, Sook Y.] Univ Massachusetts, Mem Med Ctr, Dept Surg, Worcester, MA 01605 USA.
[Paquette, Ian M.] Univ Cincinnati, Coll Med, Dept Surg, Surg, Cincinnati, OH USA.
[Audett, Marie C.] Univ Cincinnati, Coll Med, Dept Surg, Cincinnati, OH USA.
[Umamaheswaran, Preetha] Swedish Med Ctr, Colon & Rectal Surg, Seattle, WA USA.
[Fleshman, James W.] Baylor Univ, Med Ctr, Dept Surg, Dallas, TX 75246 USA.
[Caton, Gentry] Baylor Univ, Med Ctr, Colon & Rectal Surg, Dallas, TX USA.
[O'Brien, Brendan S.] US Navy, Med Corps, LT, Dept Surg,Walter Reed Natl Mil Med Ctr, Washington, DC USA.
[Nelson, Jeffery M.] US Army, COL, MC, Dept Surg,Walter Reed Natl Mil Med Ctr, Bethesda, MD USA.
[Steiner, Ari] South Nassau Commun Hosp, Radiol, Oceanside, NY USA.
[Garely, Alan] Icahn Sch Med Mt Sinai, Obstet Gynecol & Reprod Med, New York, NY 10029 USA.
[Noor, Nabila] Icahn Sch Med Mt Sinai, Obstet & Gynecol, New York, NY 10029 USA.
[Desrosiers, Laurephile; Kelley, Robert; Jacobson, Nina S.] Icahn Sch Med Mt Sinai, Female Pelv Med & Reconstruct Surg, New York, NY 10029 USA.
[Rahimi, Salma] Mt Sinai Hosp, Obstet & Gynecol, New York, NY 10029 USA.
RP Steele, SR (reprint author), Uniformed Serv Univ Hlth Sci, Surg, Ft Lewis, WA 98433 USA.
NR 163
TC 3
Z9 3
U1 0
U2 6
PU MOSBY-ELSEVIER
PI NEW YORK
PA 360 PARK AVENUE SOUTH, NEW YORK, NY 10010-1710 USA
SN 0011-3840
EI 1535-6337
J9 CURR PROB SURG
JI Curr. Probl. Surg.
PD MAR
PY 2015
VL 52
IS 3
BP 92
EP 136
DI 10.1067/j.cpsurg.2015.02.001
PG 45
WC Surgery
SC Surgery
GA CH5KC
UT WOS:000354073500002
PM 25933741
ER
PT J
AU Douglass, EM
Richman, JG
AF Douglass, E. M.
Richman, J. G.
TI Analysis of ageostrophy in strong surface eddies in the Atlantic Ocean
SO JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
LA English
DT Article
DE eddies; nonlinearity; Agulhas rings
ID VERTICAL COORDINATE; MODEL HYCOM
AB Strongly nonlinear surface eddies are identified and analyzed in a general circulation model. Agulhas rings and Gulf Stream cold-core eddies are examples of eddies that cannot be properly characterized using linear geostrophic dynamics. These eddies are compact, highly circular, persistent in time, and travel long distances while maintaining their characteristics. The nonlinear eddies can be identified by a large Rossby number and high circularity. The majority of the anomalous eddies are anticyclones. Calculation of the balance of forces on these eddies demonstrates that the centrifugal force associated with strong curvature is significant, and the force balance shifts from geostrophy toward a gradient wind balance. Using geostrophy instead of the gradient wind balance produces large errors in estimates of rotational velocity of these eddies. The gradient wind velocity can be calculated from geostrophic velocity and eddy radius. Comparison between the results demonstrates that even when only sea surface height and associated geostrophic velocities are available, strongly nonlinear eddies can be identified and properly characterized. This analysis is then applied to altimetric maps of sea surface height. Nonlinear eddies are present in the altimetric maps, but are less common and not as strongly nonlinear. This analysis demonstrates that by properly accounting for the dynamics of the eddy field, a more complete statistical description including nonlinear terms can be obtained from readily available observations.
C1 [Douglass, E. M.] Amer Soc Engn Educ, Stennis Space Ctr, MS USA.
[Richman, J. G.] Naval Res Lab, Stennis Space Ctr, MS USA.
RP Douglass, EM (reprint author), Amer Soc Engn Educ, Stennis Space Ctr, MS USA.
EM elizabeth.douglass.ctr@nrlssc.navy.mil
FU Office of Naval Research
FX The data used in this manuscript include output from HYCOM version 10.2
run by the Naval Research Laboratory. We are in the process of making
this model run available on the www.hycom.org data server. We also used
the delayed-time multimission gridded altimetry product from AVISO,
available at www.aviso.altimetry.fr, downloaded on 20 July 2008. We
acknowledge support by the projects "Eddy resolving global ocean
prediction including tides," "Ageostrophic vorticity dynamics," and
"Earth Systems Prediction Capability," all sponsored by the Office of
Naval Research.
NR 10
TC 3
Z9 3
U1 3
U2 11
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 MAR
PY 2015
VL 120
IS 3
BP 1490
EP 1507
DI 10.1002/2014JC010350
PG 18
WC Oceanography
SC Oceanography
GA CH3BG
UT WOS:000353900000004
ER
PT J
AU Shulman, I
Penta, B
Richman, J
Jacobs, G
Anderson, S
Sakalaukus, P
AF Shulman, Igor
Penta, Bradley
Richman, James
Jacobs, Gregg
Anderson, Stephanie
Sakalaukus, Peter
TI Impact of submesoscale processes on dynamics of phytoplankton filaments
SO JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
LA English
DT Article
DE coastal processes; upwelling; submesoscale processes; phytoplankton
filaments
ID OCEANIC VERTICAL PUMP; MONTEREY BAY; CALIFORNIA; FLOW; MESOSCALE;
TEMPERATURE; CIRCULATION; TRANSITION; FRONTS; SYSTEM
AB In Monterey Bay, CA, during northwesterly, upwelling favorable winds, the development of a southward flowing cold jet along the entrance to the Bay is often observed. This dense cold jet separates warm waters of the anticyclonic circulation offshore from the water masses inside the Bay. Interactions between the cold jet and the offshore anticyclonic circulation generate ageostrophic secondary circulation (ASC) cells due to submesoscale processes as, for example, flow interaction with the development of surface frontogenesis and nonlinear Ekman pumping. Based on observations and modeling studies, we evaluate the impact of these submesoscale processes on the formation of chlorophyll a filaments during late spring-earlier summer, and late summer time frames. We show that during the late summer time frame, ASC leads to the development of filaments with high values of chlorophyll a concentration along the edge of the cold jet-in contrast to the earlier summer time, when the ASC mixes phytoplankton much deeper to the area below of the euphotic depth, and chlorophyll a filaments are 3-4 times weaker.
C1 [Shulman, Igor; Penta, Bradley; Richman, James; Jacobs, Gregg; Anderson, Stephanie; Sakalaukus, Peter] Naval Res Lab, Oceanog Div, Stennis Space Ctr, MS 39529 USA.
RP Shulman, I (reprint author), Naval Res Lab, Oceanog Div, Stennis Space Ctr, MS 39529 USA.
EM igor.shulman@nrlssc.navy.mil
FU Naval Research Laboratory (NRL) [61153N]; Department of Defense High
Performance Computing Initiative
FX This research was funded through the Naval Research Laboratory (NRL)
under program element 61153N. We thank Drs. Ryan, Chavez, and Haddock of
MBARI for discussions and providing observations from UUVs and moorings.
We thank Brent Bartels of QinetiQ North America for help with the
computer code estimating Q1 vector. We thank Dr. Barton and anonymous
reviewers for providing very insightful comments and recommendations to
improve the paper. Computer time for the numerical simulations was
provided through a grant from the Department of Defense High Performance
Computing Initiative. Request for access to the data presented in this
paper can be sent to igor.shulman@nrlssc.navy.mil. This manuscript is
NRL contribution 7330-14-2130.
NR 41
TC 3
Z9 3
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 MAR
PY 2015
VL 120
IS 3
BP 2050
EP 2062
DI 10.1002/2014JC010326
PG 13
WC Oceanography
SC Oceanography
GA CH3BG
UT WOS:000353900000032
ER
PT J
AU Huhman, BM
Boswell, J
Ma, HB
Mili, L
AF Huhman, Brett M.
Boswell, Joe
Ma, Hongbin (Bill)
Mili, Lamine
TI Evaluation of the Efficacy of Oscillating Heat Pipes For Pulsed Power
Naval Applications
SO NAVAL ENGINEERS JOURNAL
LA English
DT Article
ID PERFORMANCE
AB As directed energy weapons begin to be deployed on naval vessels, the power levels and repetition rates necessary to operate these systems require the use of more sophisticated and efficient thermal management systems. Pulsed power systems are designed to rapidly charge capacitors to high energy levels in seconds, discharge that energy in milliseconds, and repeat the process as many times as possible. To investigate possible issues and evaluate solutions, the Pulsed Power Physics Branch at the U.S. Naval Research Laboratory (NRL) is developing a rep-rate charger for a 60 kJ capacitor bank for a fifty shot burst in five minutes. An H-bridge DC-DC converter is used to transfer energy from the electrochemical storage to the capacitor, and a peak power of 16-kW through the Integrated Gate Bipolar Transistors (IGBTs) is generated. The heat produced as a byproduct of the energy transfer from the batteries to the capacitor must be effectively dissipated. NRL has investigated the supplementation of the cold plate method with an Oscillating Heat Pipe (OHP). Numerical analysis and experimental results demonstrate that the OHP can significantly increase the effective thermal conductivity and enable a fast time response of the pulsed power DC-DC converter. Comparison with the numerical analysis shows that the heat transfer resistance occurring in the cooling block is the primary resistance for the investigated IGBT OHP cooling.
C1 [Huhman, Brett M.] US Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
[Boswell, Joe] ThermAvant Technol, Columbia, MO USA.
[Ma, Hongbin (Bill)] Univ Missouri, Dept Mech Engn, Columbia, MO 65211 USA.
[Mili, Lamine] Virginia Tech, Bradley Dept Elect & Comp Engn, Blacksburg, VA USA.
RP Huhman, BM (reprint author), US Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
FU US Naval Research Laboratory Base Program
FX Work supported by the US Naval Research Laboratory Base Program
NR 25
TC 1
Z9 1
U1 1
U2 10
PU AMER SOC NAVAL ENG INC
PI ALEXANDRIA
PA 1452 DUKE STREET, ALEXANDRIA, VA 22314-3458 USA
SN 0028-1425
EI 1559-3584
J9 NAV ENG J
JI Nav. Eng. J.
PD MAR
PY 2015
VL 127
IS 1
BP 75
EP 81
PG 7
WC Engineering, Marine; Engineering, Civil; Oceanography
SC Engineering; Oceanography
GA CH4LD
UT WOS:000354004100006
ER
PT J
AU Perra, F
Paulo, EP
Manfreda, LL
AF Perra, Francesco
Paulo, Eugene P.
Manfreda, Lt Luigi
TI Collaborative Efforts in Advancing the State-of-the-art of Early Stage
Ship Design
SO NAVAL ENGINEERS JOURNAL
LA English
DT Article
AB The design process for a new warship requires the selection of the configuration and specific characteristics that will result in satisfying requirements in an operationally effective manner. Traditionally, the initial phase of Concept Definition is based on experience, on the balanced application of project constraints, on empirical rules and experimental information, and on analytic insights into the technologies being considered for the new warship. This knowledge is employed within a consolidated team of experts, who balance requirements, constraints, and resources.
However, a key aspect of successful ship design is the need to begin the process with an understanding of the missions that the ship will undergo, as well as a clear definition of mission success. A collaborative team of researchers from academia and industry, led by Orizzonte Sistemi Navali (OSN) and supported by the Italian Navy, is applying this "mission focus" to Early Stage Ship Design (ESSD). This multiyear effort has the primary goal of linking operational effectiveness to ship design, while also developing methods and formats to convey mission effectiveness and design characteristic information that support a deeper understanding of these relationships within the ship concept design process.
C1 [Perra, Francesco] Orizzonte Sistemi Navali, Res & Dev Team, Genoa, Italy.
[Paulo, Eugene P.] Naval Posgrad Sch, Syst Engn, Monterey, CA USA.
[Manfreda, Lt Luigi] Italian Navy, Reggio Emilia, Italy.
RP Perra, F (reprint author), Orizzonte Sistemi Navali, Res & Dev Team, Genoa, Italy.
EM francesco.perra@orizzontesn.it; eppaulo@nps.edu;
luigi.manfreda@marina.difesa.it
FU Office Naval Research [ONR 33]
FX The lead author, Francesco Perra, would like to thank his own company
(Orizzonte Sistemi Nava li) for the opportunity to grow up in this field
and the Office Naval Research (Ms. Kelly Cooper ONR 33) for her support
of these initiatives.
NR 16
TC 0
Z9 0
U1 1
U2 2
PU AMER SOC NAVAL ENG INC
PI ALEXANDRIA
PA 1452 DUKE STREET, ALEXANDRIA, VA 22314-3458 USA
SN 0028-1425
EI 1559-3584
J9 NAV ENG J
JI Nav. Eng. J.
PD MAR
PY 2015
VL 127
IS 1
BP 83
EP 94
PG 12
WC Engineering, Marine; Engineering, Civil; Oceanography
SC Engineering; Oceanography
GA CH4LD
UT WOS:000354004100007
ER
PT J
AU Soloviev, AV
Matt, S
Fujimura, A
AF Soloviev, Alexander V.
Matt, Silvia
Fujimura, Atsushi
TI Three-Dimensional Dynamics of Freshwater Lenses in the Ocean's
Near-Surface Layer
SO OCEANOGRAPHY
LA English
DT Article
ID WESTERN EQUATORIAL PACIFIC; SHARP FRONTAL INTERFACES; MIXED-LAYER
AB Convective rains in the Intertropical Convergence Zone produce lenses of freshened water on the ocean surface. Due to significant density differences between the freshened and saltier seawater, strong pressure gradients develop, resulting in lateral spreading of freshwater lenses in the form of gravity currents. Gravity currents inherently involve three-dimensional dynamics. As a type of organized structure, gravity currents may also interact with, and be shaped by, the ambient oceanic and atmospheric environment. Among the important environmental factors are background stratification and wind stress. Under certain conditions, a resonant interaction between a propagating freshwater lens and internal waves in the underlying halocline (the barrier layer) may develop, while interaction with the wind stress may produce an asymmetry in the freshwater lens and associated mixing. These two types of interactions working in concert may explain the series of sharp frontal interfaces observed in association with freshwater lenses during the Tropical Ocean Global Atmosphere Coupled Ocean Atmosphere Response Experiment (TOGA COARE). We conducted a series of numerical simulations using computational fluid dynamics tools. These numerical experiments were designed to elucidate the relationship between vertical and horizontal fluxes of salinity under various environmental conditions and the potential impact of these fluxes on the barrier layer and Aquarius and Soil Moisture and Ocean Salinity (SMOS) satellite image formations.
C1 [Soloviev, Alexander V.] Nova SE Univ, Oceanog Ctr, Dania, FL 33004 USA.
[Soloviev, Alexander V.; Fujimura, Atsushi] Univ Miami, Rosenstiel Sch Marine & Atmospher Sci, Miami, FL 33149 USA.
[Matt, Silvia] Naval Res Lab, Stennis Space Ctr, MS USA.
RP Soloviev, AV (reprint author), Nova SE Univ, Oceanog Ctr, Dania, FL 33004 USA.
EM soloviev@nova.edu
FU Gulf of Mexico Research Initiative Consortium for Advanced Research on
the Transport of Hydrocarbons in the Environment; National Research
Council Research Associateship
FX We thank Mikhail Gilman (North Carolina State University) for
development of user-defined functions for ANSYS Fluent software. Cayla
Dean helped with numerical simulations and Bryan Hamilton (Nova
Southeastern University) with manuscript arrangement. We are grateful to
Lisan Yu (WHOI) for useful discussion of this work. The article was
initiated as a follow up to the SPURS-2 Planning Meeting held April
16-18, 2014, in Pasadena, CA, attended by one of the authors (Soloviev).
We acknowledge support from the Gulf of Mexico Research Initiative
Consortium for Advanced Research on the Transport of Hydrocarbons in the
Environment (PI: Tamay Ozgokmen, UM). Silvia Matt has been supported by
a National Research Council Research Associateship.
NR 18
TC 4
Z9 4
U1 2
U2 12
PU OCEANOGRAPHY SOC
PI ROCKVILLE
PA P.O. BOX 1931, ROCKVILLE, MD USA
SN 1042-8275
J9 OCEANOGRAPHY
JI Oceanography
PD MAR
PY 2015
VL 28
IS 1
SI SI
BP 142
EP 149
DI 10.5670/oceanog.2015.14
PG 8
WC Oceanography
SC Oceanography
GA CH0QE
UT WOS:000353726500015
ER
PT J
AU Paul, ES
Rees, JM
Hampson, P
Riley, MA
Simpson, J
Ayangeakaa, AD
Baron, JS
Carpenter, MP
Chiara, CJ
Garg, U
Hartley, DJ
Hoffman, CR
Janssens, RVF
Kondev, FG
Lauritsen, T
Mason, PJR
Matta, J
Miller, SL
Nolan, PJ
Ollier, J
Petri, M
Radford, DC
Revill, JP
Wang, X
Zhu, S
Ragnarsson, I
AF Paul, E. S.
Rees, J. M.
Hampson, P.
Riley, M. A.
Simpson, J.
Ayangeakaa, A. D.
Baron, J. S.
Carpenter, M. P.
Chiara, C. J.
Garg, U.
Hartley, D. J.
Hoffman, C. R.
Janssens, R. V. F.
Kondev, F. G.
Lauritsen, T.
Mason, P. J. R.
Matta, J.
Miller, S. L.
Nolan, P. J.
Ollier, J.
Petri, M.
Radford, D. C.
Revill, J. P.
Wang, X.
Zhu, S.
Ragnarsson, I.
TI RECENT RESULTS AT ULTRAHIGH SPIN: TERMINATING STATES AND BEYOND IN MASS
160 RARE-EARTH NUCLEI
SO ACTA PHYSICA POLONICA B
LA English
DT Article; Proceedings Paper
CT Zakopane Conference on Nuclear Physics - Extremes of the Nuclear
Landscape
CY AUG 31-SEP 07, 2014
CL Zakopane, POLAND
ID COLLECTIVE STRUCTURES; QUADRUPOLE-MOMENTS; BAND TERMINATIONS; ER-158;
SPECTROSCOPY; HO-157
AB A classic region of band termination at high spin occurs in rare-earth nuclei with around ten valence nucleons above the Gd-146 closed core. Results are presented here for such non-collective oblate (gamma = 60 degrees) terminating states in odd-Z Ho-155, odd-odd Ho-156, and even-even Er-156, where they are compared with neighbouring nuclei. In addition to these particularly favoured states, the occurrence of collective triaxial strongly deformed (TSD) bands, bypassing the terminating states and extending to over 65 (h) over bar, is reviewed.
C1 [Paul, E. S.; Rees, J. M.; Hampson, P.; Nolan, P. J.; Revill, J. P.] Univ Liverpool, Oliver Lodge Lab, Liverpool L69 7ZE, Merseyside, England.
[Riley, M. A.; Baron, J. S.; Miller, S. L.; Wang, X.] Florida State Univ, Dept Phys, Tallahassee, FL 32306 USA.
[Simpson, J.; Mason, P. J. R.; Ollier, J.] STFC Daresbury Lab, Warrington WA4 4AD, Cheshire, England.
[Ayangeakaa, A. D.; Garg, U.; Matta, J.] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA.
[Carpenter, M. P.; Chiara, C. J.; Hoffman, C. R.; Janssens, R. V. F.; Lauritsen, T.; Zhu, S.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
[Chiara, C. J.] Univ Maryland, Dept Chem & Biochem, College Pk, MD 20742 USA.
[Hartley, D. J.] US Naval Acad, Dept Phys, Annapolis, MD 21402 USA.
[Kondev, F. G.] Argonne Natl Lab, Nucl Engn Div, Argonne, IL 60439 USA.
[Petri, M.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Nucl Sci, Berkeley, CA 94720 USA.
[Radford, D. C.] Oak Ridge Natl Lab, Div Phys, Oak Ridge, TN 37831 USA.
[Ragnarsson, I.] Lund Univ, LTH, Div Math Phys, S-22100 Lund, Sweden.
RP Paul, ES (reprint author), Univ Liverpool, Oliver Lodge Lab, Liverpool L69 7ZE, Merseyside, England.
RI Ayangeakaa, Akaa/F-3683-2015; Carpenter, Michael/E-4287-2015; Hoffman,
Calem/H-4325-2016; Petri, Marina/H-4630-2016
OI Ayangeakaa, Akaa/0000-0003-1679-3175; Carpenter,
Michael/0000-0002-3237-5734; Hoffman, Calem/0000-0001-7141-9827; Petri,
Marina/0000-0002-3740-6106
FU United Kingdom Science and Technology Facilities Council; U.S.
Department of Energy, Office of Science, Office of Nuclear Physics
[DE-FG02-94ER40834, DE-FG02-96ER40983, DE-AC02-06CH11357,
DE-AC02-05CH11231]; National Science Foundation [PHY-756474,
PHY-1203100, PHY-0754674]; State of Florida; Swedish Research Council
FX This material is based upon work supported by the United Kingdom Science
and Technology Facilities Council in addition to the U.S. Department of
Energy, Office of Science, Office of Nuclear Physics, under award
numbers DE-FG02-94ER40834 (UMD) and DE-FG02-96ER40983 (UTK), and under
contract numbers DE-AC02-06CH11357 (ANL) and DE-AC02-05CH11231 (LBL),
and by the National Science Foundation under contracts PHY-756474 (FSU),
PHY-1203100 (USNA), and PHY-0754674 (UND). This research used resources
of ANL's ATLAS facility, which is a D.O.E. Office of Science User
Facility. Support was also provided by the State of Florida and the
Swedish Research Council.
NR 25
TC 0
Z9 0
U1 0
U2 7
PU WYDAWNICTWO UNIWERSYTETU JAGIELLONSKIEGO
PI KRAKOW
PA UL GRODZKA 26, KRAKOW, 31044, POLAND
SN 0587-4254
EI 1509-5770
J9 ACTA PHYS POL B
JI Acta Phys. Pol. B
PD MAR
PY 2015
VL 46
IS 3
BP 487
EP 496
DI 10.5506/APhysPolB.46.487
PG 10
WC Physics, Multidisciplinary
SC Physics
GA CG8NR
UT WOS:000353565500020
ER
PT J
AU Hebert, CG
Staton, SJR
Hudson, TQ
Hart, SJ
Lopez-Mariscal, C
Terray, A
AF Hebert, C. G.
Staton, S. J. R.
Hudson, T. Q.
Hart, S. J.
Lopez-Mariscal, C.
Terray, A.
TI Dynamic radial positioning of a hydrodynamically focused particle stream
enabled by a three-dimensional microfluidic nozzle
SO BIOMICROFLUIDICS
LA English
DT Article; Proceedings Paper
CT 8th IEEE International Conference on Nano/Molecular Medicine and
Engineering (IEEE NanoMed)
CY 2014
CL Kaohsiung, TAIWAN
SP IEEE
ID POLYDIMETHYLSILOXANE PDMS MICROCHANNELS; ACTIVATED CELL SORTER; ANALYSIS
SYSTEMS; FLOW; CHIP; SEPARATION; CYTOMETRY; CHANNEL; DEVICES
AB The ability to confine flows and focus particle streams has become an integral component of the design of microfluidic systems for the analysis of a wide range of samples. Presented here is the implementation of a 3D microfluidic nozzle capable of both focusing particles as well as dynamically positioning those particles in selected flow lamina within the downstream analysis channel. Through the independent adjustment of the three sheath inlet flows, the nozzle controlled the size of a focused stream for 6, 10, and 15 mu m polystyrene microparticles. Additional flow adjustment allowed the nozzle to dynamically position the focused particle stream to a specific area within the downstream channel. This unique ability provides additional capability and sample flexibility to the system. In order to gain insight into the fluidic behavior of the system, experimental conditions and results were duplicated within 4.75 mu m using a COMSOL Multiphysics (R) model to elucidate the structure, direction, proportion, and fate of fluid lamina throughout the nozzle region. The COMSOL Multiphysics model showed that the position and distribution of particles upon entering the nozzle have negligible influence over its focusing ability, extending the experimental results into a wider range of particle sizes and system flow rates. These results are promising for the application of this design to allow for a relatively simple, fast, fully fluidically controlled nozzle for selective particle focusing and positioning for further particle analysis and sorting. (C) 2015 AIP Publishing LLC.
C1 [Hebert, C. G.; Terray, A.] Naval Res Lab, Div Chem, Bio Analyt Chem, Washington, DC 20375 USA.
[Staton, S. J. R.] CNR, Postdoctoral Fellowship Program, Washington, DC 20375 USA.
[Hudson, T. Q.] Naval Res Enterprise Internship Program NREIP, Washington, DC 20375 USA.
[Hart, S. J.] LumaCyte, Charlottesville, VA 22901 USA.
[Lopez-Mariscal, C.] ASEE Postdoctoral Fellowship Program, Washington, DC 20375 USA.
RP Terray, A (reprint author), Naval Res Lab, Div Chem, Bio Analyt Chem, Code 6112,4555 Overlook Ave SW, Washington, DC 20375 USA.
EM terray@nrl.navy.mil
FU Office of Naval Research (ONR); Naval Research Laboratory (NRL);
National Research Council (NRC); Karles Fellowship
FX The authors would like to thank the Office of Naval Research (ONR) and
the Naval Research Laboratory (NRL) for funding support of this research
effort as well as support from the National Research Council (NRC)
Post-doctoral Fellowship Program and the Karles Fellowship.
NR 59
TC 0
Z9 0
U1 2
U2 15
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 1932-1058
J9 BIOMICROFLUIDICS
JI Biomicrofluidics
PD MAR
PY 2015
VL 9
IS 2
AR UNSP 024106
DI 10.1063/1.4914869
PG 12
WC Biochemical Research Methods; Biophysics; Nanoscience & Nanotechnology;
Physics, Fluids & Plasmas
SC Biochemistry & Molecular Biology; Biophysics; Science & Technology -
Other Topics; Physics
GA CH2BN
UT WOS:000353829200014
PM 25825621
ER
PT J
AU Montomery, MT
Persing, J
Smith, RK
AF Montomery, Michael T.
Persing, John
Smith, Roger K.
TI Putting to rest WISHE-ful misconceptions for tropical cyclone
intensification
SO JOURNAL OF ADVANCES IN MODELING EARTH SYSTEMS
LA English
DT Article
ID SEA INTERACTION THEORY; NUMERICAL SIMULATION; POTENTIAL INTENSITY;
MAXIMUM INTENSITY; MODEL; HURRICANES; EVOLUTION; CYCLOGENESIS; DYNAMICS;
ENERGETICS
AB The purpose of this article is twofold. The first is to point out and correct several misconceptions about the putative WISHE mechanism of tropical cyclone intensification that currently are being taught to atmospheric science students, to tropical weather forecasters, and to laypeople who seek to understand how tropical cyclones intensify. The mechanism relates to the simplest problem of an initial cyclonic vortex in a quiescent environment. This first part is important because the credibility of tropical cyclone science depends inter alia on being able to articulate a clear and consistent picture of the hypothesized intensification process and its dependencies on key flow parameters. The credibility depends also on being able to test the hypothesized mechanisms using observations, numerical models, or theoretical analyses. The second purpose of the paper is to carry out new numerical experiments using a state-of-the-art numerical model to test a recent hypothesis invoking the WISHE feedback mechanism during the rapid intensification phase of a tropical cyclone. The results obtained herein, in conjunction with prior work, do not support this recent hypothesis and refute the view that the WISHE intensification mechanism is the essential mechanism of tropical cyclone intensification in the idealized problem that historically has been used to underpin the paradigm. This second objective is important because it presents a simple way of testing the hypothesized intensification mechanism and shows that the mechanism is neither essential nor the dominant mode of intensification for the prototype intensification problem. In view of the operational, societal, and scientific interest in the physics of tropical cyclone intensification, we believe this paper will be of broad interest to the atmospheric science community and the findings should be useful in both the classroom setting and frontier research.
C1 [Montomery, Michael T.; Persing, John] Naval Postgrad Sch, Dept Meteorol, Monterey, CA 93943 USA.
[Smith, Roger K.] Ludwig Maximilians Univ Munchen, Inst Meteorol, Munich, Germany.
RP Montomery, MT (reprint author), Naval Postgrad Sch, Dept Meteorol, Monterey, CA 93943 USA.
EM mtmontgo@nps.edu
FU National Science Foundation [AGS 0733380, AGS-1313948]; Office of Naval
Research (ONR) [N0001411WX20095]; National Aeronautics and Space
Administration (NASA) [NNG11PK021]; U.S. Naval Postgraduate School;
German Research Council (Deutsche Forschungsgemeinschaft) [SM30-23]
FX Data supporting all figures is available at:
https://www.dropbox.com/sh/ptlm2j07133p3dq/AACwCDLlLMP1x06ROf-FBAHza?dl=
0. This work was supported in part by the National Science Foundation
Award AGS 0733380, and AGS-1313948, The Office of Naval Research (ONR),
through award N0001411WX20095, National Aeronautics and Space
Administration (NASA) grant NNG11PK021 and the U.S. Naval Postgraduate
School. M.T.M. wishes to thank JM, JEM, LKP, MPM, and PCM for their
support. R.K.S. is grateful for support from the German Research Council
(Deutsche Forschungsgemeinschaft) under Grant SM30-23. We also thank
Gerard Kilroy for his assistance preparing figures.
NR 67
TC 16
Z9 16
U1 2
U2 7
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 1942-2466
J9 J ADV MODEL EARTH SY
JI J. Adv. Model. Earth Syst.
PD MAR
PY 2015
VL 7
IS 1
BP 92
EP 109
DI 10.1002/2014MS000362
PG 18
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA CH3XF
UT WOS:000353963600006
ER
PT J
AU Chen, WJ
Arnold, JC
Fairchok, MP
Danaher, PJ
McDonough, EA
Blair, PJ
Garcia, J
Halsey, ES
Schofield, C
Ottolini, M
Mor, D
Ridore, M
Burgess, TH
Millar, EV
AF Chen, Wei-Ju
Arnold, John C.
Fairchok, Mary P.
Danaher, Patrick J.
McDonough, Erin A.
Blair, Patrick J.
Garcia, Josefina
Halsey, Eric S.
Schofield, Christina
Ottolini, Martin
Mor, Deepika
Ridore, Michelande
Burgess, Timothy H.
Millar, Eugene V.
TI Epidemiologic, clinical, and virologic characteristics of human
rhinovirus infection among otherwise healthy children and adults
Rhinovirus among adults and children
SO JOURNAL OF CLINICAL VIROLOGY
LA English
DT Article
DE Rhinovirus; HRV genotypes; Viral shedding; Military
ID RESPIRATORY-TRACT INFECTION; A VIRUS-INFECTION; HOSPITALIZED CHILDREN;
PHYLOGENETIC ANALYSIS; MOLECULAR-FEATURES; DIVERSITY; RESPONSES;
SEVERITY; SEQUENCE; STRAINS
AB Background: human rhinovirus (HRV) is a major cause of influenza-like illness (ILI) in adults and children. Differences in disease severity by HRV species have been described among hospitalized patients with underlying illness. Less is known about the clinical and virologic characteristics of HRV infection among otherwise healthy populations, particularly adults.
Objectives: to characterize molecular epidemiology of HRV and association between HRV species and clinical presentation and viral shedding.
Study design: observational, prospective, facility-based study of ILI was conducted from February 2010 to April 2012. Collection of nasopharyngeal specimens, patient symptoms, and clinical information occurred on days 0, 3, 7, and 28. Patients recorded symptom severity daily for the first 7 days of illness in a symptom diary. HRV was identified by RT-PCR and genotyped for species determination. Cases who were co-infected with other viral respiratory pathogens were excluded from the analysis. We evaluated the associations between HRV species, clinical severity, and patterns of viral shedding.
Results: eighty-four HRV cases were identified and their isolates genotyped. Of these, 62 (74%) were > 18 years. Fifty-four were HRV-A, 11HRV-B, and 19HRV-C. HRV-C infection was more common among children than adults (59% vs. 10%, P < 0.001). Among adults, HRV-A was associated with higher severity of upper respiratory symptoms compared to HRV-B (P = 0.02), but no such association was found in children. In addition, adults shed HRV-A significantly longer than HRV-C (P trend = 0.01).
Conclusions: among otherwise healthy adults with HRV infection, we observed species-specific differences in respiratory symptom severity and duration of viral shedding. (C) 2015 Elsevier B.V. All rights reserved.
C1 [Chen, Wei-Ju; Fairchok, Mary P.; Ridore, Michelande; Millar, Eugene V.] Uniformed Serv Univ Hlth Sci, Infect Dis Clin Res Program, Dept Prevent Med & Biometr, Rockville, MD 20852 USA.
[Arnold, John C.] Naval Med Ctr, San Diego, CA USA.
[Fairchok, Mary P.; Schofield, Christina] Madigan Army Med Ctr, Tacoma, WA 98431 USA.
[Danaher, Patrick J.] Def Inst Med Operat, San Antonio, TX USA.
[McDonough, Erin A.; Blair, Patrick J.] Naval Hlth Res Ctr, San Diego, CA USA.
[Halsey, Eric S.; Schofield, Christina] Naval Med Res Unit 6, Lima, Peru.
[Ottolini, Martin] Uniformed Serv Univ Hlth Sci, Off Curriculum, Rockville, MD 20852 USA.
[Burgess, Timothy H.] Walter Reed Natl Mil Med Ctr, Bethesda, MD USA.
RP Millar, EV (reprint author), Uniformed Serv Univ Hlth Sci, Infect Dis Clin Res Program, Dept Prevent Med & Biometr, 11300 Rockville Pike,Suite 1211, Rockville, MD 20852 USA.
EM emillar@idcrp.org
FU National Institute of Allergy and Infectious Diseases, National
Institutes of Health [Y1-AI-5072]; Armed Forces Health Surveillance
Center, Global Emerging Infections Surveillance and Response System
FX The study was funded by the National Institute of Allergy and Infectious
Diseases, National Institutes of Health, under Inter-Agency Agreement
Y1-AI-5072, and the Armed Forces Health Surveillance Center, Global
Emerging Infections Surveillance and Response System.
NR 44
TC 6
Z9 7
U1 1
U2 2
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1386-6532
EI 1873-5967
J9 J CLIN VIROL
JI J. Clin. Virol.
PD MAR
PY 2015
VL 64
BP 74
EP 82
DI 10.1016/j.jcv.2015.01.007
PG 9
WC Virology
SC Virology
GA CF0ZP
UT WOS:000352273600014
PM 25728083
ER
PT J
AU Yesinowski, JP
AF Yesinowski, James P.
TI Finding the true spin-lattice relaxation time for half-integral nuclei
with non-zero quadrupole couplings
SO JOURNAL OF MAGNETIC RESONANCE
LA English
DT Article
DE Half-integral quadrupolar nuclei; T-1; Spin-lattice relaxation methods;
Magnetization recovery; Relaxation mechanisms; Gallium nitride; MAS-NMR
ID GALLIUM NITRIDE; INVERSION-RECOVERY; MAS-NMR; SOLIDS; RESONANCE; CURVES
AB Measuring true spin-lattice relaxation times T-1 of half-integral quadrupolar nuclei having non-zero nuclear quadrupole coupling constants (NQCCs) presents challenges due to the presence of satellite-transitions (STs) that may lie outside the excitation bandwidth of the central transition (CT). This leads to complications in establishing well-defined initial conditions for the population differences in these multi-level systems. In addition, experiments involving magic-angle spinning (MAS) can introduce spin exchange due to zero-crossings of the ST and CT (or possibly rotational resonance recoupling in the case of multiple sites) and greatly altered initial conditions as well. An extensive comparison of pulse sequences that have been previously used to measure T-1 in such systems is reported, using the Ga-71 (I = 3/2) NMR of a Ge-doped h-GaN n-type semiconductor sample as the test case. The T-1 values were measured at the peak maximum of the Knight shift distribution. Analytical expressions for magnetization-recovery of the CT appropriate to the pulse sequences tested were used, involving contributions from both a magnetic relaxation mechanism (rate constant W) and a quadrupolar one (rate constants W-1 and W-2, approximately equal in this case). An asynchronous train of high-power saturating pulses under MAS that is able to completely saturate both CT and STs is found to be the most reliable and accurate method for obtaining the "true T-1", defined here as (2W + 2W(1,2))(-1). All other methods studied yielded poor agreement with this "true T-1" value or even resulted in gross errors, for reasons that are analyzed in detail. These methods involved a synchronous train of saturating pulses under MAS, an inversion-recovery sequence under MAS or static conditions, and a saturating comb of pulses on a static sample. Although the present results were obtained on a sample where the magnetic relaxation mechanism dominated the quadrupolar one, the asynchronous saturating pulse train approach is not limited to this situation. The extent to which W-1 and W-2 are unequal does affect the interpretability of the experiment however, particularly when the quadrupolar mechanism dominates. A numerically approximate solution for the I = 3/2 recovery case reveals the quantitative effects of any such inequality. Published by Elsevier Inc.
C1 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 ONR
FX I thank Dr. Joel B. Miller and Dr. Sylvian Cadars for their useful
comments and suggestions that helped improve the manuscript. I am also
very grateful to an anonymous referee for similar comments as well as
for providing the approximate numerical solution in Eq. (4). I thank Dr.
Andrew Purdy for synthesizing and providing the sample of h-GaN:Ge.
Support from ONR to the NRL core program is acknowledged.
NR 33
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Z9 3
U1 1
U2 18
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 1090-7807
EI 1096-0856
J9 J MAGN RESON
JI J. Magn. Reson.
PD MAR
PY 2015
VL 252
BP 135
EP 144
DI 10.1016/j.jmr.2014.12.012
PG 10
WC Biochemical Research Methods; Physics, Atomic, Molecular & Chemical;
Spectroscopy
SC Biochemistry & Molecular Biology; Physics; Spectroscopy
GA CF7SS
UT WOS:000352757200016
PM 25700115
ER
PT J
AU Wright, SW
Steenhoff, AP
Elci, O
Wolfe, HA
Ralston, M
Kgosiesele, T
Makone, I
Mazhani, L
Nadkarni, VM
Meaney, PA
AF Wright, Shelton W.
Steenhoff, Andrew P.
Elci, Okan
Wolfe, Heather A.
Ralston, Mark
Kgosiesele, Thandie
Makone, Ishmael
Mazhani, Loeto
Nadkarni, Vinay M.
Meaney, Peter A.
TI Impact of contextualized pediatric resuscitation training on pediatric
healthcare providers in Botswana
SO RESUSCITATION
LA English
DT Article
DE Developing countries; Emergency training, Pediatric emergency training;
Resuscitation education; PEARS; Pediatric Emergency Assessment
Recognition and Stabilization; Resource-limited setting
AB Background: Worldwide, 6.6 million children die each year, partly due to a failure to recognize and treat acutely ill children. Programs that improve provider recognition and treatment initiation may improve child survival.
Objectives: Describe provider characteristics and hospital resources during a contextualized pediatric resuscitation training program in Botswana and determine if training impacts provider knowledge retention.
Design/methods: The American Heart Association's Pediatric Emergency Assessment Recognition and Stabilization (PEARS) course was contextualized to Botswana resources and practice guidelines in this observational study. A cohort of facility-based nurses (FBN) was assessed prior to and 1-month following training. Survey tools assessed provider characteristics, cognitive knowledge and confidence and hospital pediatric resources. Data analysis utilized Fisher's exact, Chi-square, Wilcoxon rank-sum and linear regression where appropriate.
Results: 61 healthcare providers (89% FBNs, 11% physicians) successfully completed PEARS training. Referral facilities had more pediatric specific equipment and high-flow oxygen. Median frequency of pediatric resuscitation was higher in referral compared to district level FBN's (5 [3,10] vs. 2 [1,3] p = 0.007). While 50% of FBN's had previous resuscitation training, none was pediatric specific. Median provider confidence improved significantly after training (3.8/5 vs. 4.7/5, p < 0.001), as did knowledge of correct management of acute pneumonia and diarrhea (44% vs. 100%, p < 0.001, 6% vs. 67%, p < 0.001, respectively).
Conclusion: FBN's in Botswana report frequent resuscitation of ill children but low baseline training. Provider knowledge for recognition and initial treatment of respiratory distress and shock is low. Contextualized training significantly increased FBN provider confidence and knowledge retention 1-month after training. (C) 2014 Elsevier Ireland Ltd. All rights reserved.
C1 [Wright, Shelton W.; Steenhoff, Andrew P.; Elci, Okan; Wolfe, Heather A.; Nadkarni, Vinay M.; Meaney, Peter A.] Childrens Hosp Philadelphia, Philadelphia, PA 19104 USA.
[Steenhoff, Andrew P.; Meaney, Peter A.] Botswana UPenn Partnership, Gaborone, Botswana.
[Ralston, Mark] Naval Hosp, Oak Harbor, WA 98277 USA.
[Kgosiesele, Thandie] Botswana Minist Hlth, Clin Serv, Gaborone, Botswana.
[Makone, Ishmael] Botswana Minist Hlth, Princess Marina Hosp, Gaborone, Botswana.
[Steenhoff, Andrew P.; Mazhani, Loeto] Univ Botswana, Sch Med, Gaborone, Botswana.
RP Meaney, PA (reprint author), Childrens Hosp Philadelphia, 3400 Civ Ctr Blvd, Philadelphia, PA 19104 USA.
EM meaney@chop.edu
FU Department of Anesthesia and Critical Care at the Children's Hospital of
Philadelphia; American Heart Association's Emergency Cardiovascular Care
Committee; Botswana-University of Pennsylvania Partnership; University
of Pennsylvania-Children's Hospital of Philadelphia Internal Medicine
and Pediatrics Residency Program
FX We would also like to acknowledge the support of the Department of
Anesthesia and Critical Care at the Children's Hospital of Philadelphia,
the American Heart Association's Emergency Cardiovascular Care
Committee, the Botswana-University of Pennsylvania Partnership and the
University of Pennsylvania-Children's Hospital of Philadelphia Internal
Medicine and Pediatrics Residency Program.
NR 12
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Z9 0
U1 0
U2 1
PU ELSEVIER IRELAND LTD
PI CLARE
PA ELSEVIER HOUSE, BROOKVALE PLAZA, EAST PARK SHANNON, CO, CLARE, 00000,
IRELAND
SN 0300-9572
J9 RESUSCITATION
JI Resuscitation
PD MAR
PY 2015
VL 88
BP 57
EP 62
DI 10.1016/j.resuscitation.2014.12.007
PG 6
WC Critical Care Medicine; Emergency Medicine
SC General & Internal Medicine; Emergency Medicine
GA CF4HC
UT WOS:000352508400024
PM 25534076
ER
PT J
AU Greenlee, JD
Anderson, TJ
Feigelson, BN
Koehler, AD
Hobart, KD
Kub, FJ
AF Greenlee, Jordan D.
Anderson, Travis J.
Feigelson, Boris N.
Koehler, Andrew D.
Hobart, Karl D.
Kub, Francis J.
TI Characterization of a selective AlN wet etchant
SO APPLIED PHYSICS EXPRESS
LA English
DT Article
ID GAN; ACTIVATION
AB The effects of a selective AlN wet etchant, AZ400K, on the morphology and chemical composition of capped and uncapped GaN surfaces were investigated. After etching an uncapped GaN thin film at 80 degrees C for 8 h, the surface morphology was unchanged. After an annealing pulse of 1500 degrees C was applied, AlN-encapsulated GaN surfaces exhibited morphology change due to surface rearrangement. No reaction occurred between the GaN and AlN, preventing the complete removal of AlN. AZ400K was found to completely etch AlN without damaging the underlying GaN film, thus enabling plasma-free processing of power and optoelectronic devices. (C) 2015 The Japan Society of Applied Physics
C1 [Greenlee, Jordan D.] US Naval Res Lab, Natl Res Council, Washington, DC 20375 USA.
[Anderson, Travis J.; Feigelson, Boris N.; Koehler, Andrew D.; Hobart, Karl D.; Kub, Francis J.] Naval Res Lab, Washington, DC 20375 USA.
RP Greenlee, JD (reprint author), US Naval Res Lab, Natl Res Council, Washington, DC 20375 USA.
EM jordan.greenlee.ctr@nrl.navy.mil
FU Office of Naval Research
FX This research was performed while J. D. Greenlee held a National
Research Council Research Associateship Award at the Naval Research
Laboratory. Research at NRL was supported by the Office of Naval
Research.
NR 19
TC 8
Z9 8
U1 2
U2 16
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 1882-0778
EI 1882-0786
J9 APPL PHYS EXPRESS
JI Appl. Phys. Express
PD MAR
PY 2015
VL 8
IS 3
AR 036501
DI 10.7567/APEX.8.036501
PG 3
WC Physics, Applied
SC Physics
GA CF0GI
UT WOS:000352220700028
ER
PT J
AU Apte, A
Heidtke, C
Salmeron, J
AF Apte, Aruna
Heidtke, Curtis
Salmeron, Javier
TI Casualty Collection Points Optimization: A Study for the District of
Columbia
SO INTERFACES
LA English
DT Article
DE casualty collection point; mixed-integer optimization; disaster relief
ID FACILITY LOCATION; SWITCHING CENTERS; GRAPH
AB A casualty collection point (CCP) is a single, predetermined location that is organized, staffed, and equipped to provide decontamination (if required), emergency medical assessment, treatment, and, where necessary, onward transportation of victims of a mass casualty incident. Emergency planners in the District of Columbia have recognized the desirability of developing a tool to assist planners in selecting CCPs within the affected area following a major incident. We develop a CCP optimization model (CCPOM) that provides planners and policymakers with strategic and operational insights into the complex problem of selecting optimal CCP locations to maximize casualty throughput for a range of incident parameters. Even more relevant, the CCPOM determines the utilization of personnel, decontamination units, and ambulances, providing planners with a general structure for resource allocation and signaling shortfalls that may lead to bottlenecks in casualty processing at the CCPs. District planners found many nonintuitive CCPOM results to be significant to their planning, programming, and budgeting efforts, and now consider the model's categorized resource utilization to be an integral part in updating District plans for both national special security event planning and everyday events.
C1 [Apte, Aruna] Naval Postgrad Sch, Grad Sch Business & Publ Policy, Monterey, CA 93943 USA.
[Heidtke, Curtis] Naval Postgrad Sch, Off Counsel, Monterey, CA 93943 USA.
[Salmeron, Javier] Naval Postgrad Sch, Dept Operat Res, Monterey, CA 93943 USA.
RP Apte, A (reprint author), Naval Postgrad Sch, Grad Sch Business & Publ Policy, Monterey, CA 93943 USA.
EM auapte@nps.edu; cheidtke@nps.edu; jsalmero@nps.edu
NR 22
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U1 0
U2 8
PU INFORMS
PI CATONSVILLE
PA 5521 RESEARCH PARK DR, SUITE 200, CATONSVILLE, MD 21228 USA
SN 0092-2102
EI 1526-551X
J9 INTERFACES
JI Interfaces
PD MAR-APR
PY 2015
VL 45
IS 2
BP 149
EP 165
DI 10.1287/inte.2014.0757
PG 17
WC Management; Operations Research & Management Science
SC Business & Economics; Operations Research & Management Science
GA CF1PC
UT WOS:000352318100003
ER
PT J
AU Brown, GG
DeGrange, WC
Dell, RF
Fricker, RD
AF Brown, Gerald G.
DeGrange, Walter C.
Dell, Robert F.
Fricker, Ronald D., Jr.
TI ASP, Art and Science of Practice: Educating Military Operations Research
Practitioners
SO INTERFACES
LA English
DT Article
DE communications; OR/MS education: professional; personnel: military;
OR/MS implementation: professional
ID INFORMS PRACTICE LITERATURE; UNIVERSITIES CONTRIBUTIONS; ROTHKOPF
RANKINGS
AB The 2013 UPS George D. Smith Prize was awarded to the Naval Postgraduate School's (NPS) Operations Research (OR) department for "effective and innovative preparation of students to be good practitioners of operations research, management science, or analytics." In the spirit of the prize, this paper shares details about our degree program. The program is closely linked to its military sponsor, the United States Department of Defense, in a unique relationship that ensures NPS students and faculty are focused on critical and important problems facing the military. Our students bring firsthand knowledge of the challenges our organization faces, and leave our academic program as OR practitioners prepared to immediately meet those challenges.
C1 [Brown, Gerald G.; DeGrange, Walter C.; Dell, Robert F.; Fricker, Ronald D., Jr.] Naval Postgrad Sch, Dept Operat Res, Monterey, CA 93943 USA.
RP Brown, GG (reprint author), Naval Postgrad Sch, Dept Operat Res, Monterey, CA 93943 USA.
EM gbrown@nps.edu; wcdegran@nps.edu; dell@nps.edu; rdfricke@nps.edu
OI DeGrange, Walter/0000-0003-1570-3035
NR 23
TC 0
Z9 0
U1 0
U2 6
PU INFORMS
PI CATONSVILLE
PA 5521 RESEARCH PARK DR, SUITE 200, CATONSVILLE, MD 21228 USA
SN 0092-2102
EI 1526-551X
J9 INTERFACES
JI Interfaces
PD MAR-APR
PY 2015
VL 45
IS 2
BP 175
EP 186
DI 10.1287/inte.2014.0780
PG 12
WC Management; Operations Research & Management Science
SC Business & Economics; Operations Research & Management Science
GA CF1PC
UT WOS:000352318100005
ER
PT J
AU Plischuk, S
Sanscrainte, ND
Becnel, JJ
Estep, AS
Lange, CE
AF Plischuk, Santiago
Sanscrainte, Neil D.
Becnel, James J.
Estep, Alden S.
Lange, Carlos E.
TI Tubulinosema pampeana sp n. (Microsporidia, Tubulinosematidae), a
pathogen of the South American bumble bee Bombus atratus
SO JOURNAL OF INVERTEBRATE PATHOLOGY
LA English
DT Article
DE Argentina; Bee health; Cyst-like bodies; Nosema; Pampas region;
Pollinator
ID NOSEMA-BOMBI; SEQUENCE ALIGNMENT; APIS-MELLIFERA; HONEY-BEE; PARASITE;
HYMENOPTERA; APIDAE; CERANAE; RATISBONENSIS; PERFORMANCE
AB An undescribed microsporidium was detected and isolated from the South American bumble bee Bombus atratus collected in the Pampas region of Argentina. Infection intensity in workers averaged 8.2 x 10(7) spores/bee. The main site of infection was adipose tissue where hypertrophy of adipocytes resulted in cyst-like body formation. Mature spores were ovoid and monomorphic. They measured 4.00 mu m x 2.37 mu m (fresh) or 3.98 mu m x 1.88 mu m (fixed). All stages were diplokariotic and developed in direct contact with host cytoplasm. Isofilar polar filament was arranged in 16 coils in one or, posteriorly, two layers. Coiling angle was variable, between perpendicular and almost parallel to major spore axis. Late meronts and sporogonial stages were surrounded by vesicles of approximately 60 nm in diameter. Based on both new and already designed primers, a 1827 bp (SSUrRNA, ITS, LSUrRNA) sequence was obtained. Data analyses suggest that this microsporidium is a new species of the genus Tubulinosema. The name Tubulinosema pampeana sp. n. is proposed. (C) 2015 Elsevier Inc. All rights reserved.
C1 [Plischuk, Santiago; Lange, Carlos E.] UNLP, CCT La Plata CONICET, Ctr Estudios Parasitol & Vectores CEPAVE, La Plata, Buenos Aires, Argentina.
[Sanscrainte, Neil D.; Becnel, James J.; Estep, Alden S.] ARS, CMAVE, USDA, Gainesville, FL USA.
[Estep, Alden S.] Navy Entomol Ctr Excellence, Naval Air Stn, Jacksonville, FL USA.
[Lange, Carlos E.] CIC, Buenos Aires, DF, Argentina.
RP Plischuk, S (reprint author), Ctr Estudios Parasitol & Vectores CEPAVE, Blvd 120 E-60 & 64, RA-1900 La Plata, Buenos Aires, Argentina.
FU USDA - ARS; CICPBA; CONICET [4754/12]; FONCyT [PICT 2012-0851, PICT
2012-0199]
FX Authors are grateful to Susan Bjornson, Cory Stanley-Stahr, Mariano
Higes, Lee lien Solter and two anonymous reviewers. SP also acknowledges
IDEA WILD. This study was supported by USDA - ARS, CICPBA, CONICET (Fin.
Res. 4754/12), and FONCyT (PICT 2012-0851 and PICT 2012-0199).
NR 45
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U1 2
U2 8
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0022-2011
EI 1096-0805
J9 J INVERTEBR PATHOL
JI J. Invertebr. Pathol.
PD MAR
PY 2015
VL 126
BP 31
EP 42
DI 10.1016/j.jip.2015.01.006
PG 12
WC Zoology
SC Zoology
GA CF6NL
UT WOS:000352673300005
PM 25637516
ER
PT J
AU Felts, JR
Oyer, AJ
Hernandez, SC
Whitener, KE
Robinson, JT
Walton, SG
Sheehan, PE
AF Felts, Jonathan R.
Oyer, Andrew J.
Hernandez, Sandra C.
Whitener, Keith E., Jr.
Robinson, Jeremy T.
Walton, Scott G.
Sheehan, Paul E.
TI Direct mechanochemical cleavage of functional groups from graphene
SO NATURE COMMUNICATIONS
LA English
DT Article
ID ATOMIC-FORCE MICROSCOPE; FRICTION COEFFICIENT; NANOSCALE; CARBON;
REDUCTION; FILMS; OXIDE; HYDROGENATION; SPECTROSCOPY; LITHOGRAPHY
AB Mechanical stress can drive chemical reactions and is unique in that the reaction product can depend on both the magnitude and the direction of the applied force. Indeed, this directionality can drive chemical reactions impossible through conventional means. However, unlike heat-or pressure-driven reactions, mechanical stress is rarely applied isometrically, obscuring how mechanical inputs relate to the force applied to the bond. Here we report an atomic force microscope technique that can measure mechanically induced bond scission on graphene in real time with sensitivity to atomic-scale interactions. Quantitative measurements of the stress-driven reaction dynamics show that the reaction rate depends both on the bond being broken and on the tip material. Oxygen cleaves from graphene more readily than fluorine, which in turn cleaves more readily than hydrogen. The technique may be extended to study the mechanochemistry of any arbitrary combination of tip material, chemical group and substrate.
C1 [Felts, Jonathan R.] Texas A&M Univ, Dept Mech Engn, College Stn, TX 77843 USA.
[Oyer, Andrew J.; Whitener, Keith E., Jr.] US Naval Res Lab, Natl Res Council, Washington, DC 20375 USA.
[Hernandez, Sandra C.; Walton, Scott G.] US Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
[Robinson, Jeremy T.] US Naval Res Lab, Div Elect Sci & Technol, Washington, DC 20375 USA.
[Sheehan, Paul E.] US Naval Res Lab, Div Chem, Washington, DC 20375 USA.
RP Felts, JR (reprint author), Texas A&M Univ, Dept Mech Engn, College Stn, TX 77843 USA.
EM jonathan.felts@tamu.edu; paul.sheehan@nrl.navy.mil
RI Sheehan, Paul/B-4793-2010
OI Sheehan, Paul/0000-0003-2668-4124
FU Naval Research Laboratory Nanoscale Science Institute; Naval Research
Laboratory Base Program; Office of Naval Research [N0001412WX21684];
National Research Council fellowship
FX This work has been supported by the Naval Research Laboratory Nanoscale
Science Institute, the Naval Research Laboratory Base Program, and by
the Office of Naval Research (N0001412WX21684). J.R.F., A.J.O. and
K.E.W. were supported by a National Research Council fellowship. We
thank Kathy Wahl for insight into the observed contamination layer.
NR 41
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U1 17
U2 77
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 MAR
PY 2015
VL 6
AR 6467
DI 10.1038/ncomms7467
PG 7
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA CF6WJ
UT WOS:000352697100008
PM 25739513
ER
PT J
AU Poutous, MK
Major, KJ
Ewing, KJ
Sanghera, J
Aggarwal, I
AF Poutous, Menelaos K.
Major, Kevin J.
Ewing, Kenneth J.
Sanghera, Jas
Aggarwal, Ishwar
TI Comparative Discrimination Spectral Detection Method for the
Identification of Vapors Using Overlapping Broad Spectral Filters
SO APPLIED SPECTROSCOPY
LA English
DT Article
DE Filter photometry; IR spectroscopy; Infrared spectroscopy; Comparative
discrimination spectral detection; Overlapping spectral absorption
signal; Broad spectral filters
AB We present a comparative discrimination spectral detection approach for the identification of chemical vapors using broad spectral filters. We applied the method to flowing vapors of as-received and non-interacting mixtures for the detection of the volatile components of a target chemical in the presence of interferents. The method is based on measurements of the overall spectral signature of the vapors, where the interferent spectrum largely overlaps the target spectrum. In this work we outline the construction of a set of abstract configuration-space vectors, generated by the broadband spectral components from sampled chemical vapors, and the subsequent vector-space operations between them, which enable the detection of a target chemical by comparative discrimination from interferents. The method was applied to the C-H vibrational band from 2500 to 3500 cm(-1), where there is large spectral signal overlap between the chosen target chemical and two interferents. Our results show clear detection and distinction of the target vapors without ambiguity.
C1 [Poutous, Menelaos K.; Major, Kevin J.; Aggarwal, Ishwar] Univ N Carolina, Dept Phys & Opt Sci, Charlotte, NC 28226 USA.
[Ewing, Kenneth J.; Sanghera, Jas] Naval Res Lab, Opt Sci Div, Washington, DC 20375 USA.
RP Poutous, MK (reprint author), Univ N Carolina, Dept Phys & Opt Sci, 9201 Univ City Blvd, Charlotte, NC 28226 USA.
EM mpoutous@uncc.edu
FU Office of Naval Research (ONR) [N000141310208]
FX This research was supported by a grant from the Office of Naval Research
(ONR Award Number: N000141310208).
NR 14
TC 4
Z9 4
U1 1
U2 9
PU SAGE PUBLICATIONS INC
PI THOUSAND OAKS
PA 2455 TELLER RD, THOUSAND OAKS, CA 91320 USA
SN 0003-7028
EI 1943-3530
J9 APPL SPECTROSC
JI Appl. Spectrosc.
PD MAR
PY 2015
VL 69
IS 3
BP 305
EP 313
DI 10.1366/14-07562
PG 9
WC Instruments & Instrumentation; Spectroscopy
SC Instruments & Instrumentation; Spectroscopy
GA CE6XT
UT WOS:000351982200001
PM 25665186
ER
PT J
AU Harris, E
McNamara, P
Durso, R
AF Harris, Erica
McNamara, Patrick
Durso, Raymon
TI Novelty Seeking in Patients with Right-Versus Left-Onset Parkinson
Disease
SO COGNITIVE AND BEHAVIORAL NEUROLOGY
LA English
DT Article
DE Parkinson disease; Temperament and Character Inventory; novelty seeking;
dopamine; impulsivity
ID ANXIETY STRESS SCALES; MOTOR SYMPTOM ONSET; PERSONALITY-TRAITS;
NORMATIVE DATA; RATING-SCALE; ASYMMETRY; SIDE; DEPRESSION;
QUESTIONNAIRE; IMPULSIVITY
AB Objective and Background: In patients with Parkinson disease, the personality trait "novelty seeking" has been linked to higher-than-normal risk for impulse control disorders. We measured novelty seeking to test whether side of onset of Parkinson disease predicted patients' risk for impulsivity.
Methods: We evaluated 38 patients with Parkinson disease (19 right onset, 19 left onset) and 44 community-dwelling neuro-typical controls. All participants completed demographic and mood measures and the Temperament and Character Inventory personality questionnaire. The right-and left-onset groups were nearly the same in background and clinical variables, including use of dopamine agonists.
Results: The patients with right-onset disease exhibited significantly higher levels of novelty seeking than the patients with left-onset disease.
Conclusions: Our results suggest that patients with right-onset Parkinson disease who are taking dopamine agonists and who exhibit high novelty seeking are at greater risk for developing impulse control disorders than are patients with left onset who are also taking dopamine agonists.
C1 [Harris, Erica] Naval Hlth Res Ctr, San Diego, CA USA.
[McNamara, Patrick; Durso, Raymon] Boston Univ Sch Med, Boston, MA USA.
[McNamara, Patrick; Durso, Raymon] Vet Affairs Boston Healthcare Syst, Boston, MA USA.
[McNamara, Patrick] Northcentral Univ, Grad Sch, Prescott Valley, AZ USA.
RP Harris, E (reprint author), Naval Hlth Res Ctr, Hlth & Behav Sci 163, 140 Sylvester Rd, San Diego, CA 92106 USA.
EM uva2bu@gmail.com
FU Office of Research and Development, Medical Research Service, US
Department of Veterans Affairs
FX Supported in part by the Office of Research and Development, Medical
Research Service, US Department of Veterans Affairs.
NR 55
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U1 1
U2 7
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA TWO COMMERCE SQ, 2001 MARKET ST, PHILADELPHIA, PA 19103 USA
SN 1543-3633
EI 1543-3641
J9 COGN BEHAV NEUROL
JI Cogn. Behav. Neurol.
PD MAR
PY 2015
VL 28
IS 1
BP 11
EP 16
PG 6
WC Behavioral Sciences; Clinical Neurology
SC Behavioral Sciences; Neurosciences & Neurology
GA CE5NI
UT WOS:000351882000002
PM 25812126
ER
PT J
AU Michael, JB
AF Michael, James Bret
TI Trusted Computing: An Elusive Goal
SO COMPUTER
LA English
DT Editorial Material
AB Recent high-profile cyberattacks such as the massive data leak at Sony leave us wondering where such lack of trustworthiness will take us. The answer, of course, is nowhere we want to go.
C1 [Michael, James Bret] Naval Postgrad Sch, Comp Sci & Elect Dept, Monterey, CA 93943 USA.
[Michael, James Bret] Naval Postgrad Sch, Dept Comp Engn, Monterey, CA USA.
RP Michael, JB (reprint author), Naval Postgrad Sch, Comp Sci & Elect Dept, Monterey, CA 93943 USA.
EM bmichael@nps.edu
NR 12
TC 0
Z9 0
U1 1
U2 4
PU IEEE COMPUTER SOC
PI LOS ALAMITOS
PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1314 USA
SN 0018-9162
EI 1558-0814
J9 COMPUTER
JI Computer
PD MAR
PY 2015
VL 48
IS 3
BP 99
EP 101
PG 3
WC Computer Science, Hardware & Architecture; Computer Science, Software
Engineering
SC Computer Science
GA CE3UN
UT WOS:000351755000026
ER
PT J
AU Nguyen, GD
Kompella, S
Wieselthier, JE
Ephremides, A
AF Nguyen, Gam D.
Kompella, Sastry
Wieselthier, Jeffrey E.
Ephremides, Anthony
TI Simultaneous Schedule-Based Transmission by Primary and Secondary Users
for Heavy-Traffic Cognitive Radio Networks
SO IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY
LA English
DT Article
DE Cognitive radio network; heavy-traffic model; interference;
signal-to-interference-plus-noise ratio (SINR); spectrum sharing;
threshold; transmission schedules
AB We develop cognitive radio networking methods for a heavy-traffic model in which the channel is always occupied by primary users. This contrasts with the interference-avoidance approach for the non-heavy-traffic model, in which primary users have idle times, and secondary users are allowed to use the channel at those idle times. We use an "underlay" approach to cognitive radio networking by allowing secondary users to share the channel with simultaneously transmitting primary users. Thus, secondary users can degrade the performance of primary users, and our goal is to ensure that the level of performance degradation is acceptable. This is accomplished by scheduling and coordinating the transmissions among users, as well as providing a safeguard for controlling the level of additional interference caused by transmissions from secondary users. We show that our methods can provide additional throughput for secondary users, while maintaining the performance of primary users at the specified level.
C1 [Nguyen, Gam D.; Kompella, Sastry] Naval Res Lab, Div Informat Technol, Washington, DC 20375 USA.
[Wieselthier, Jeffrey E.] Wieselthier Res, Silver Spring, MD 20901 USA.
[Ephremides, Anthony] Univ Maryland, Dept Elect & Comp Engn, College Pk, MD 20742 USA.
RP Nguyen, GD (reprint author), Naval Res Lab, Div Informat Technol, Washington, DC 20375 USA.
EM gam.nguyen@nrl.navy.mil; sastry.kompella@nrl.navy.mil;
jeff@wieselthier.com; etony@umd.edu
FU Office of Naval Research
FX Manuscript received May 1, 2013; revised October 18, 2013 and March 10,
2014; accepted April 26, 2014. Date of publication May 30, 2014; date of
current version March 10, 2015. This work was supported by the Office of
Naval Research. The review of this paper was coordinated by Prof. J.
Tang.
NR 20
TC 0
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U1 2
U2 4
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 MAR
PY 2015
VL 64
IS 3
BP 1132
EP 1142
DI 10.1109/TVT.2014.2327477
PG 11
WC Engineering, Electrical & Electronic; Telecommunications; Transportation
Science & Technology
SC Engineering; Telecommunications; Transportation
GA CD9ZC
UT WOS:000351459600023
ER
PT J
AU Kang, JS
Arute, F
Yoel, D
Littlefield, JE
Harris, T
AF Kang, Jin S.
Arute, Frank
Yoel, David
Littlefield, John E.
Harris, Thomas
TI Combined Environment Testing on a Nanosatellite
SO JOURNAL OF SPACECRAFT AND ROCKETS
LA English
DT Article
AB In the real world launch environment, acceleration, vibration, and shock loads are applied simultaneously, but the systems on the ground cannot be tested to combined load profiles using the traditional methods. By providing more realistic combined load profiles, integrated testing has the potential to significantly reduce mission risk and cost. The objective of the research is to demonstrate the capability and also to show the effects of integrated acceleration and vibration testing where the payload response frequency and modes are modified due to the combined loading conditions. This was done using a state-of-the-art centrifuge at the National Aerospace Training and Research Center to subject payloads to the synergistic effects of combined environments. The project expands on the original design and employs modeling and simulation, a larger shaker, a CubeSat-class satellite payload, increased instrumentation, and a series of combined environments tests with multi-axis loads. The test results showed that a shift in response frequency occurs when the payload is subjected to a combined loading environment, which cannot be observed by traditional testing methods. Being able to more closely simulate the launch environment may result in a reduction of required safety margins, together with schedule and risk reduction, resulting in major cost savings.
C1 [Kang, Jin S.] US Naval Acad, Dept Aerosp Engn, Annapolis, MD 21402 USA.
[Arute, Frank] Boeing Satellite Syst, El Segundo, CA 90245 USA.
[Yoel, David; Littlefield, John E.] Amer Aerosp Advisors Inc, Radnor, PA 19087 USA.
[Harris, Thomas] Valley Forge Sci LLC, Berwyn, PA 19312 USA.
RP Kang, JS (reprint author), US Naval Acad, Dept Aerosp Engn, 590 Holloway Rd,Mail Stop 11B, Annapolis, MD 21402 USA.
FU NASA [(NNX12CG26P]
FX This work was supported by NASA under a Phase I Small Business
Technology Transfer contract (NNX12CG26P) issued to American Aerospace
Advisors, Inc. The work was performed together by American Aerospace
Advisors, Inc., Drexel University, and the NASTAR Center.
NR 9
TC 0
Z9 0
U1 2
U2 6
PU AMER INST AERONAUTICS ASTRONAUTICS
PI RESTON
PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091-4344 USA
SN 0022-4650
EI 1533-6794
J9 J SPACECRAFT ROCKETS
JI J. Spacecr. Rockets
PD MAR
PY 2015
VL 52
IS 2
BP 462
EP 469
DI 10.2514/1.A32646
PG 8
WC Engineering, Aerospace
SC Engineering
GA CE2CS
UT WOS:000351621400015
ER
PT J
AU Kambour, KE
Kouhestani, C
McMarr, P
Hughes, HL
Steinke, DR
Devine, RAB
AF Kambour, Kenneth E.
Kouhestani, Camron
McMarr, Patrick
Hughes, Harold L.
Steinke, Daniel R.
Devine, Roderick A. B.
TI Negative bias temperature instability threshold voltage shift turnaround
in SiGe channel MOSFETs
SO JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B
LA English
DT Article
AB Negative bias temperature instability (NBTI) has been measured at various temperatures in high-k gate insulator MOSFETs with buried Si0.65Ge0.35 channels and with regular Si surface channels. Previous studies on both surface channel Si devices and Si1-xGex buried channel devices provide evidence for net positive charge trapping as a function of electrical stressing time albeit reduced for the case of Si1-xGex compared to the Si case. In our case, for buried Si0.65Ge0.35, the authors find initial negative charge trapping followed by positive charge trapping at longer times, typically >10(-1) s. The effect is accentuated at higher temperatures and yields a turnaround in the measured threshold voltage shift as a function of stress time. Closer examination of NBTI in high-k gate, Si surface devices stressed at room temperature and 90 degrees C suggests both electron and hole trapping may be present there although the majority effect is hole trapping. (C) 2015 American Vacuum Society.
C1 [Kambour, Kenneth E.] Leidos, Albuquerque, NM 87106 USA.
[Kouhestani, Camron] COSMIAC, Albuquerque, NM 87106 USA.
[McMarr, Patrick] Sotera Def Solut, Mclean, VA USA.
[Steinke, Daniel R.] SUNY Albany, Albany, NY 12222 USA.
[Devine, Roderick A. B.] Think Strategically, Albuquerque, NM 87111 USA.
[Hughes, Harold L.] Naval Res Lab, Washington, DC 20375 USA.
RP Kambour, KE (reprint author), Leidos, 2109 Airpk RD SE, Albuquerque, NM 87106 USA.
EM Kenneth.E.Kambour@leidos.com
FU U.S. Air Force - United States Air Force Materiel Command, Air Force
Research Laboratory, Space Vehicles Directorate, Kirtland AFB
[FA9453-08-C-0245]; Air Force Research Laboratory (AFRL)
[FA9453-08-2-0259]; Defense Threat Reduction Agency through MIPR HDTRA
[1411931]
FX The work performed by K. E. Kambour was supported by the U.S. Air Force
under Contract FA9453-08-C-0245 sponsored, monitored, and managed by:
United States Air Force Materiel Command, Air Force Research Laboratory,
Space Vehicles Directorate, Kirtland AFB, NM 87117-5776. C. Kouhestani
is with COSMIAC Kirtland, AFB, New Mexico 87117, USA. This material is
based on research sponsored by Air Force Research Laboratory (AFRL)
under Agreement No. FA9453-08-2-0259. The U.S. Government is authorized
to reproduce and distribute reprints for Governmental purposes
notwithstanding any copyright notation thereon. The work performed by H.
Hughes, P. McMarr, and D. Steinke was sponsored by the Defense Threat
Reduction Agency through MIPR HDTRA 1411931.
NR 11
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U1 2
U2 5
PU A V S AMER INST PHYSICS
PI MELVILLE
PA STE 1 NO 1, 2 HUNTINGTON QUADRANGLE, MELVILLE, NY 11747-4502 USA
SN 1071-1023
J9 J VAC SCI TECHNOL B
JI J. Vac. Sci. Technol. B
PD MAR
PY 2015
VL 33
IS 2
AR UNSP 022201
DI 10.1116/1.4907416
PG 4
WC Engineering, Electrical & Electronic; Nanoscience & Nanotechnology;
Physics, Applied
SC Engineering; Science & Technology - Other Topics; Physics
GA CE3TF
UT WOS:000351751100041
ER
PT J
AU Agarwal, R
Domowicz, MS
Schwartz, NB
Henry, J
Medintz, I
Delehanty, JB
Stewart, MH
Susumu, K
Huston, AL
Deschamps, JR
Dawson, PE
Palomo, V
Dawson, G
AF Agarwal, Rishabh
Domowicz, Miriam S.
Schwartz, Nancy B.
Henry, Judy
Medintz, Igor
Delehanty, James B.
Stewart, Michael H.
Susumu, Kimihiro
Huston, Alan L.
Deschamps, Jeffrey R.
Dawson, Philip E.
Palomo, Valle
Dawson, Glyn
TI Delivery and Tracking of Quantum Dot Peptide Bioconjugates in an Intact
Developing Avian Brain
SO ACS CHEMICAL NEUROSCIENCE
LA English
DT Article
DE Nanoparticles; zwitterion; quantum dots; peptidyl delivery; normal
embryonic chick brain development; choroid plexus
ID BIOCOMPATIBLE SEMICONDUCTOR; ZWITTERIONIC LIGANDS; OPTIC TECTUM;
MOUSE-BRAIN; SPINAL-CORD; PROTEIN; CELLS; BINDING; NANOPARTICLES;
NEUROGENESIS
AB Luminescent semiconductor similar to 9.5 nm nanopartides (quantum dots: QDs) have intrinsic physiochemical and optical properties which enable us to begin to understand the mechanisms of nanopartide mediated chemical/drug delivery. Here, we demonstrate the ability of CdSe/ZnS core/shell QDs surface functionalized with a zwitterionic compact ligand to deliver a cell-penetrating lipopeptide to the developing chick embryo brain without any apparent toxicity. Functionalized QDs were conjugated to the palmitoylated peptide WGDap-(Palmitoyl)VKIKKP9GGH6, previously shown to uniquely facilitate endosomal escape, and microinjected into the embryonic chick spinal cord canal at embryo day 4 (E4). We were subsequently able to follow the labeling of spinal cord extension into the ventricles, migratory neuroblasts, maturing brain cells, and complex structures such as the choroid plexus. QD intensity extended throughout the brain, and peaked between E8 and E1 when fluorescence was concentrated in the choroid plexus before declining to hatching (E21/P0). We observed no abnormalities in embryonic patterning or embryo survival, and mRNA in situ hybridization confirmed that, at key developmental stages, the expression pattern of genes associated with different brain cell types (brain lipid binding protein, Sox-2, proteolipid protein and Class III-beta-Tubulin) all showed a normal labeling pattern and intensity. Our findings suggest that we can use chemically modified QDs to identify and track neural stem cells as they migrate, that the choroid plexus dears these injected QDs/nanoparticles from the brain after E15, and that they can deliver drugs and peptides to the developing brain.
C1 [Agarwal, Rishabh; Dawson, Glyn] Univ Chicago, Comm Neurobiol, Chicago, IL 60637 USA.
[Domowicz, Miriam S.; Schwartz, Nancy B.; Henry, Judy] Univ Chicago, Dept Pediat, Chicago, IL 60637 USA.
[Medintz, Igor; Delehanty, James B.; Deschamps, Jeffrey R.] US Naval Res Lab, Ctr Biomol Sci & Engn, Washington, DC 20375 USA.
[Stewart, Michael H.; Susumu, Kimihiro; Huston, Alan L.] US Naval Res Lab, Div Opt Sci, Washington, DC 20375 USA.
[Dawson, Philip E.; Palomo, Valle] Scripps Res Inst, La Jolla, CA 92037 USA.
[Dawson, Glyn] Univ Chicago, Dept Pediat, Chicago, IL 60637 USA.
[Dawson, Glyn] Univ Chicago, Dept Biochem & Mol Biol, Chicago, IL 60637 USA.
RP Dawson, G (reprint author), 5841 S Maryland Ave,MC5058, Chicago, IL 60637 USA.
EM dawg@uchicago.edu
RI Palomo Ruiz, Maria del Valle/N-2932-2016;
OI Palomo Ruiz, Maria del Valle/0000-0002-1473-4086; Domowicz,
Miriam/0000-0001-7860-4427
FU USPHS [NS36866-38, GM-098871]; Children Brain Disease Foundation; NRL;
NRL NSI; ONR; DARPA; DTRA JSTO [MIPR B112582M]; Ramon Areces foundation;
[P50]; [HD09402]
FX This work was supported by USPHS [Grant number NS36866-38 (to G.D.)] and
P50 Grant [Grant Number HD09402 (to G.D. N.B.S., and M.S.D.)], as well
as the Children Brain Disease Foundation to G.D. I.M. and A.L.H. were
supported by NRL, the NRL NSI, ONR, DARPA and DTRA JSTO [MIPR B112582M].
P.E.D. was supported by GM-098871 from the USPHS, and V.P. acknowledges
the Ramon Areces foundation for financial support.
NR 55
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U1 3
U2 45
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1948-7193
J9 ACS CHEM NEUROSCI
JI ACS Chem. Neurosci.
PD MAR
PY 2015
VL 6
IS 3
BP 494
EP 504
DI 10.1021/acschemneuro.5b00022
PG 11
WC Biochemistry & Molecular Biology; Chemistry, Medicinal; Neurosciences
SC Biochemistry & Molecular Biology; Pharmacology & Pharmacy; Neurosciences
& Neurology
GA CD9LN
UT WOS:000351419900018
PM 25688887
ER
PT J
AU Clarke, JR
Moon, RE
Chimiak, JM
Stinton, R
Van Hoesen, KB
Lang, MA
AF Clarke, J. R.
Moon, R. E.
Chimiak, J. M.
Stinton, R.
Van Hoesen, K. B.
Lang, M. A.
TI Don't dive cold when you don't have to
SO DIVING AND HYPERBARIC MEDICINE
LA English
DT Letter
DE Hypothermia; decompression sickness; letters (to the Editor)
C1 [Clarke, J. R.] US Navy Expt Diving Unit, Panama City, FL 32407 USA.
[Moon, R. E.] Duke Univ, Durham, NC USA.
[Chimiak, J. M.] Divers Alert Network, Durham, NC USA.
[Stinton, R.] Diving Unltd Int Inc, San Diego, CA USA.
[Van Hoesen, K. B.; Lang, M. A.] UC San Diego Emergency Med, San Diego, CA USA.
[Lang, M. A.] OxyHeal Hlth Grp, National City, CA USA.
RP Clarke, JR (reprint author), US Navy Expt Diving Unit, Panama City, FL 32407 USA.
EM john.r.clarke@navy.mil
NR 2
TC 2
Z9 2
U1 0
U2 2
PU SOUTH PACIFIC UNDERWATER MED SOC
PI MELBOURNE
PA C/O AUSTRALIAN & NEW ZEALAND COLL ANAESTHETISTS, 630 ST KILDA RD,
MELBOURNE, VIC 3004, AUSTRALIA
SN 1833-3516
J9 DIVING HYPERB MED
JI Diving Hyperb. Med.
PD MAR
PY 2015
VL 45
IS 1
BP 62
EP 62
PG 1
WC Public, Environmental & Occupational Health
SC Public, Environmental & Occupational Health
GA CD7PM
UT WOS:000351282900018
PM 25964043
ER
PT J
AU Coffin, RB
Osburn, CL
Plummer, RE
Smith, JP
Rose, PS
Grabowski, KS
AF Coffin, Richard B.
Osburn, Christopher L.
Plummer, Rebecca E.
Smith, Joseph P.
Rose, Paula S.
Grabowski, Kenneth S.
TI Deep Sediment-Sourced Methane Contribution to Shallow Sediment Organic
Carbon: Atwater Valley, Texas-Louisiana Shelf, Gulf of Mexico
SO ENERGIES
LA English
DT Article
ID ANOXIC MARINE SEDIMENT; ANAEROBIC OXIDATION; MISSISSIPPI CANYON; GAS
HYDRATE; MICROBIAL COMMUNITIES; REDUCING BACTERIA; ATCHAFALAYA RIVER;
COASTAL SEDIMENTS; CONTINENTAL-SHELF; SULFATE REDUCTION
AB Coastal methane hydrate deposits are globally abundant. There is a need to understand the deep sediment sourced methane energy contribution to shallow sediment carbon relative to terrestrial sources and phytoplankton. Shallow sediment and porewater samples were collected from Atwater Valley, Texas-Louisiana Shelf, Gulf of Mexico near a seafloor mound feature identified in geophysical surveys as an elevated bottom seismic reflection. Geochemical data revealed off-mound methane diffusion and active fluid advection on-mound. Gas composition (average methane/ethane ratio similar to 11,000) and isotope ratios of methane on the mound (average delta C-13(CH4(g)) = -71.2 parts per thousand; Delta C-14(CH4(g)) = -961 parts per thousand) indicate a deep sediment, microbial source. Depleted sediment organic carbon values on mound (delta C-13(SOC) = -25.8 parts per thousand; Delta C-14(SOC) = -930 parts per thousand) relative to off-mound (delta C-13(SOC) = -22.5 parts per thousand; Delta C-14(SOC) = -629 parts per thousand) suggest deep sourced ancient carbon is incorporated into shallow sediment organic matter. Porewater and sediment data indicate inorganic carbon fixed during anaerobic oxidation of methane is a dominant contributor to on-mound shallow sediment organic carbon cycling. A simple stable carbon isotope mass balance suggests carbon fixation of dissolved inorganic carbon (DIC) associated with anaerobic oxidation of hydrate-sourced CH4 contributes up to 85% of shallow sediment organic carbon.
C1 [Coffin, Richard B.; Rose, Paula S.; Grabowski, Kenneth S.] Naval Res Lab, Washington, DC 20375 USA.
[Osburn, Christopher L.] N Carolina State Univ, Marine Earth & Atmospher Sci, Raleigh, NC 27695 USA.
[Plummer, Rebecca E.] Univ Maryland, Dept Geol, College Pk, MD 20742 USA.
[Smith, Joseph P.] US Naval Acad, Dept Oceanog, Annapolis, MD 21402 USA.
RP Coffin, RB (reprint author), Texas A&M Univ, Dept Phys & Environm Sci, Corpus Christi, TX 78412 USA.
EM richard.coffin@tamucc.edu; closburn@ncsu.edu; rplummer@umd.edu;
jpsmith@usna.edu; paula.rose@tamucc.edu; kenneth.grabowski@nrl.navy.mil
OI Osburn, Christopher/0000-0002-9334-4202
FU Department of Energy-National Energy Technology Laboratory, Office of
Naval Research; US Naval Research Laboratory
FX Warren Wood, NRL-Stennis Space Center, MS provided seismic profiles and
seafloor topography. Ross Downer, Milbar Hydo-Test, Inc. (Shreveport,
LA, USA) was lead for all coring operations. We appreciate the technical
discussions and reviews of this manuscript from Paula Rose, Jeff
Chanton, Thomas Boyd, and Leila Hamdan. David Knies contributed to
radiocarbon analyses. We also appreciate the support by the crew of the
RV Gyre. Finally, reviewers of this manuscript have provided excellent
input to research and the presentation. This research was supported by
Department of Energy-National Energy Technology Laboratory, Office of
Naval Research and the US Naval Research Laboratory.
NR 69
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U1 5
U2 27
PU MDPI AG
PI BASEL
PA POSTFACH, CH-4005 BASEL, SWITZERLAND
SN 1996-1073
J9 ENERGIES
JI Energies
PD MAR
PY 2015
VL 8
IS 3
BP 1561
EP 1583
DI 10.3390/en8031561
PG 23
WC Energy & Fuels
SC Energy & Fuels
GA CE6JF
UT WOS:000351942000002
ER
PT J
AU Severinghaus, R
Tummala, M
McEachen, J
AF Severinghaus, Robert
Tummala, Murali
McEachen, John
TI Networks for Maintaining System-Level Availability for an Exploring
Robot
SO IEEE SYSTEMS JOURNAL
LA English
DT Article
DE Cooperative communications; multihop; network availability; propagation
loss; robot exploration
ID WIRELESS NETWORKS; PATH LOSS; EXPLORATION; CONNECTIVITY; DEPLOYMENT;
DIVERSITY; AWARENESS; SEARCH; RESCUE; MODELS
AB In this paper, we provide an analysis of fixed-position communication nodes in a network for maintaining availability during robot exploration of unknown environments. Based on realistic wireless propagation models in different environments, the communication path loss as the robot moves is characterized. The nodes are then described, and we discuss a simple scalable policy for their deployment. The resulting network of multiple nodes reduces path loss to an acceptable threshold and has a tree structure. Considering the effect of shadowing, another policy is developed for node deployment that influences the system-level availability metric. We also demonstrate how this metric is influenced by exploration strategies and communication routing policies.
C1 [Severinghaus, Robert; Tummala, Murali; McEachen, John] Naval Postgrad Sch, Monterey, CA 93943 USA.
RP Severinghaus, R (reprint author), Tank & Automot Res Dev & Engn Ctr, Warren, MI 48397 USA.
EM robert.n.severinghaus.civ@mail.mil; mtummala@nps.edu; mceachen@nps.edu
NR 29
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U1 0
U2 1
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1932-8184
EI 1937-9234
J9 IEEE SYST J
JI IEEE Syst. J.
PD MAR
PY 2015
VL 9
IS 1
BP 98
EP 106
DI 10.1109/JSYST.2013.2284711
PG 9
WC Computer Science, Information Systems; Engineering, Electrical &
Electronic; Operations Research & Management Science; Telecommunications
SC Computer Science; Engineering; Operations Research & Management Science;
Telecommunications
GA CD4SV
UT WOS:000351075000011
ER
PT J
AU Henderson, DR
AF Henderson, David R.
TI A Philosophical Economist's Case against a Government-Guaranteed Basic
Income
SO INDEPENDENT REVIEW
LA English
DT Article
C1 [Henderson, David R.] Naval Postgrad Sch, Grad Sch Business & Publ Policy, Econ, Monterey, CA 93943 USA.
[Henderson, David R.] Stanford Univ, Hoover Inst, Stanford, CA 94305 USA.
RP Henderson, DR (reprint author), Naval Postgrad Sch, Grad Sch Business & Publ Policy, Econ, Monterey, CA 93943 USA.
NR 21
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U1 6
U2 13
PU INDEPENDENT INST
PI OAKLAND
PA 100 SWAN WAY, OAKLAND, CA 94621 USA
SN 1086-1653
J9 INDEP REV
JI Indep. Rev.
PD SPR
PY 2015
VL 19
IS 4
BP 489
EP 502
PG 14
WC Economics; Political Science
SC Business & Economics; Government & Law
GA CD8ED
UT WOS:000351327100002
ER
PT J
AU Testerman, M
AF Testerman, Matthew
TI Barriers to Peace in Civil War
SO INTERNATIONAL STUDIES REVIEW
LA English
DT Book Review
C1 [Testerman, Matthew] US Naval Acad, Dept Polit Sci, Annapolis, MD 21402 USA.
RP Testerman, M (reprint author), US Naval Acad, Dept Polit Sci, Annapolis, MD 21402 USA.
NR 1
TC 0
Z9 0
U1 1
U2 2
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1521-9488
EI 1468-2486
J9 INT STUD REV
JI Int. Stud. Rev.
PD MAR
PY 2015
VL 17
IS 1
SI SI
BP 126
EP 131
PG 6
WC International Relations; Political Science
SC International Relations; Government & Law
GA CD9CA
UT WOS:000351393000010
ER
PT J
AU Testerman, M
AF Testerman, Matthew
TI Strengthening Peace in Post-Civil War States: Transforming Spoilers into
Stakeholders
SO INTERNATIONAL STUDIES REVIEW
LA English
DT Book Review
C1 [Testerman, Matthew] US Naval Acad, Dept Polit Sci, Annapolis, MD 21402 USA.
RP Testerman, M (reprint author), US Naval Acad, Dept Polit Sci, Annapolis, MD 21402 USA.
NR 1
TC 0
Z9 0
U1 2
U2 4
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1521-9488
EI 1468-2486
J9 INT STUD REV
JI Int. Stud. Rev.
PD MAR
PY 2015
VL 17
IS 1
SI SI
BP 126
EP 131
DI 10.1111/misr.12191
PG 6
WC International Relations; Political Science
SC International Relations; Government & Law
GA CD9CA
UT WOS:000351393000008
ER
PT J
AU Testerman, M
AF Testerman, Matthew
TI Why Peace Fails: The Causes and Prevention of Civil War Recurrence
SO INTERNATIONAL STUDIES REVIEW
LA English
DT Book Review
C1 [Testerman, Matthew] US Naval Acad, Dept Polit Sci, Annapolis, MD 21402 USA.
RP Testerman, M (reprint author), US Naval Acad, Dept Polit Sci, Annapolis, MD 21402 USA.
NR 1
TC 0
Z9 0
U1 1
U2 2
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1521-9488
EI 1468-2486
J9 INT STUD REV
JI Int. Stud. Rev.
PD MAR
PY 2015
VL 17
IS 1
SI SI
BP 126
EP 131
PG 6
WC International Relations; Political Science
SC International Relations; Government & Law
GA CD9CA
UT WOS:000351393000009
ER
PT J
AU Zhang, XF
Han, GJ
Li, D
Wu, XR
Li, W
Chu, PC
AF Zhang, Xuefeng
Han, Guijun
Li, Dong
Wu, Xinrong
Li, Wei
Chu, Peter C.
TI Variational Estimation of Wave-Affected Parameters in a Two-Equation
Turbulence Model
SO JOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY
LA English
DT Article
ID STRESS DRAG COEFFICIENT; LAYER THERMAL RESPONSE; OCEAN SURFACE-LAYER;
WIND STRESS; BOUNDARY-LAYER; INITIAL CONDITIONS; DATA ASSIMILATION;
ENERGY-BALANCE; BREAKING WAVES; CLOSURE-MODEL
AB A variational method is used to estimate wave-affected parameters in a two-equation turbulence model with assimilation of temperature data into an ocean boundary layer model. Enhancement of turbulent kinetic energy dissipation due to breaking waves is considered. The Mellor-Yamada level 2.5 turbulence closure scheme (MY2.5) with the two uncertain wave-affected parameters (wave energy factor alpha and Charnock coefficient beta) is selected as the two-equation turbulence model for this study. Two types of experiments are conducted. First, within an identical synthetic experiment framework, the upper-layer temperature "observations" in summer generated by a "truth" model are assimilated into a biased simulation model to investigate if (alpha, beta) can be successfully estimated using the variational method. Second, real temperature profiles from Ocean Weather Station Papa are assimilated into the biased simulation model to obtain the optimal wave-affected parameters. With the optimally estimated parameters, the upper-layer temperature can be well predicted. Furthermore, the horizontal distribution of the wave-affected parameters employed in a high-order turbulence closure scheme can be estimated optimally by using the four-dimensional variational method that assimilates the upper-layer available temperature data into an ocean general circulation model.
C1 [Zhang, Xuefeng; Han, Guijun; Li, Dong; Wu, Xinrong; Li, Wei] State Ocean Adm, Natl Marine Data & Informat Serv, Key Lab Marine Environm Informat Technol, Tianjin 300171, Peoples R China.
[Chu, Peter C.] Naval Postgrad Sch, Dept Oceanog, Naval Ocean Anal & Predict Lab, Monterey, CA USA.
RP Zhang, XF (reprint author), State Ocean Adm, Natl Marine Data & Informat Serv, Key Lab Marine Environm Informat Technol, 93 Liuwei Rd, Tianjin 300171, Peoples R China.
EM xfz_nmdis@126.com
FU National Basic Research Program of China [2013CB430304]; National
Natural Science Foundation of China [41030854, 41106005, 41176003,
41206178]; Naval Oceanographic Office
FX This research was jointly supported by grants from the National Basic
Research Program of China (2013CB430304), and the National Natural
Science Foundation of China (under Grants 41030854, 41106005, 41176003,
and 41206178). Peter C. Chu was supported by the Naval Oceanographic
Office.
NR 49
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U1 1
U2 6
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 MAR
PY 2015
VL 32
IS 3
BP 528
EP 546
DI 10.1175/JTECH-D-14-00087.1
PG 19
WC Engineering, Ocean; Meteorology & Atmospheric Sciences
SC Engineering; Meteorology & Atmospheric Sciences
GA CD6WI
UT WOS:000351230500010
ER
PT J
AU Simsek, FG
Kwon, YW
AF Simsek, Fatma Gulden
Kwon, Young W.
TI Investigation of material modeling in fluid-structure interaction
analysis of an idealized three-layered abdominal aorta: aneurysm
initiation and fully developed aneurysms
SO JOURNAL OF BIOLOGICAL PHYSICS
LA English
DT Article
DE Three-layered wall; Fluid-structure interaction; Abdominal aorta; Wall
stresses and strains
ID FINITE-ELEMENT-ANALYSIS; MECHANICAL WALL STRESS; CEREBRAL ANEURYSM;
SPACE-TIME; INTRALUMINAL THROMBUS; RUPTURE RISK; FAILURE PROPERTIES;
PULSATILE FLOW; BLOOD-FLOW; DYNAMICS
AB Different material models for an idealized three-layered abdominal aorta are compared using computational techniques to study aneurysm initiation and fully developed aneurysms. The computational model includes fluid-structure interaction (FSI) between the blood vessel and the blood. In order to model aneurysm initiation, the medial region was degenerated to mimic the medial loss occurring in the inception of an aneurysm. Various cases are considered in order to understand their effects on the initiation of an abdominal aortic aneurysm. The layers of the blood vessel were modeled using either linear elastic materials or Mooney-Rivlin (otherwise known as hyperelastic) type materials. The degenerated medial region was also modeled in either linear elastic or hyperelastic-type materials and assumed to be in the shape of an arc with a thin width or a circular ring with different widths. The blood viscosity effect was also considered in the initiation mechanism. In addition, dynamic analysis of the blood vessel was performed without interaction with the blood flow by applying time-dependent pressure inside the lumen in a three-layered abdominal aorta. The stresses, strains, and displacements were compared for a healthy aorta, an initiated aneurysm and a fully developed aneurysm. The study shows that the material modeling of the vessel has a sizable effect on aneurysm initiation and fully developed aneurysms. Different material modeling of degeneration regions also affects the stress-strain response of aneurysm initiation. Additionally, the structural analysis without considering FSI (called noFSI) overestimates the peak von Mises stress by 52% at the interfaces of the layers.
C1 [Simsek, Fatma Gulden] Bogazici Univ, Inst Biomed Engn, Istanbul, Turkey.
[Kwon, Young W.] Naval Postgrad Sch, Dept Mech & Aerosp Engn, Monterey, CA 93943 USA.
RP Simsek, FG (reprint author), Bogazici Univ, Inst Biomed Engn, Istanbul, Turkey.
EM fatma.temiz@boun.edu.tr; ywkwon@nps.edu
NR 74
TC 3
Z9 3
U1 1
U2 9
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0092-0606
EI 1573-0689
J9 J BIOL PHYS
JI J. Biol. Phys.
PD MAR
PY 2015
VL 41
IS 2
BP 173
EP 201
DI 10.1007/s10867-014-9372-x
PG 29
WC Biophysics
SC Biophysics
GA CE1BR
UT WOS:000351547100004
PM 25624113
ER
PT J
AU MacMahan, J
AF MacMahan, Jamie
TI Low-Frequency Seiche in a Large Bay
SO JOURNAL OF PHYSICAL OCEANOGRAPHY
LA English
DT Article
ID INFRAGRAVITY WAVES; CONTINENTAL SHELF; FREE OSCILLATIONS; OCEAN WAVES;
EXCITATION; ATMOSPHERE; EARTH
AB Short-term observations of sea surface elevations eta along the 10-m isobath and long-term observations inside and outside of a large bay (Monterey Bay, CA) were obtained to describe the nodal structure of the modes 0-3 seiches within the bay and the low-frequency (<346 cpd) seiche forcing mechanism. The measured nodal pattern validates previous numerical estimates associated with a northern amplitude bias, though variability exists across the modal frequency band, particularly for modes 0 and 1. Low-frequency oceanic eta white noise within seiche frequency bands (24-69 cpd) provides a continuous resonant forcing of the bay seiche with a eta(2) (variance) amplification of 16-40 for the different modes. The temporal variation of the oceanic eta white noise is significantly correlated (R-2 = 0.86) at the 95% confidence interval with the bay seiche eta that varies seasonally. The oceanic eta white noise is hypothesized as being from low-frequency, free, infragravity waves that are forced by short waves.
C1 Naval Postgrad Sch, Dept Oceanog, Monterey, CA 93943 USA.
RP MacMahan, J (reprint author), Naval Postgrad Sch, Dept Oceanog, 833 Dyer Rd,Bldg 232,Room 327c, Monterey, CA 93943 USA.
EM jhmacmah@nps.edu
FU ONR [N0001414WX20353]; NSF [OCE-0926750]; NPS
FX This work originated from the Littoral Field Studies class within the OC
department at the NPS. Pressure sensors were obtained from an ONR DURIP
(N0001409WR20268). JM was supported by ONR (N0001414WX20353), NSF
(OCE-0926750), and NPS. Appreciation is extended to the OC Navy
Officers, Keith Wyckoff, Paul Jessen, and Jenna Brown. Thanks to Ed
Thornton, Edie Gallagher, and Larry Breaker for their discussion on the
topic. I also thank the two reviewers for comments for improving this
manuscript.
NR 22
TC 1
Z9 1
U1 1
U2 12
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 MAR
PY 2015
VL 45
IS 3
BP 716
EP 723
DI 10.1175/JPO-D-14-0169.1
PG 8
WC Oceanography
SC Oceanography
GA CD3NG
UT WOS:000350984900007
ER
PT J
AU Martin, JE
Michael, T
Carrica, PM
AF Martin, J. Ezequiel
Michael, Thad
Carrica, Pablo M.
TI Submarine Maneuvers Using Direct Overset Simulation of Appendages and
Propeller and Coupled CFD/Potential Flow Propeller Solver
SO JOURNAL OF SHIP RESEARCH
LA English
DT Article
DE submarine maneuvering; computational ship hydrodynamics; overset grids;
propeller flow
ID PHASE LEVEL SET; SURFACE COMBATANT; COMPUTATIONS; GRIDS
AB This article presents two approaches to simulate maneuvers of a model radio-controlled submarine. In the direct simulation approach, rudders, stern planes, and propellers are gridded and treated as moving objects using dynamic overset technology. The second approach couples the overset computational fluid dynamics (CFD) solver and a potential flow propeller code, with both codes exchanging velocities at the propeller plane and wake, body forces, and propeller forces and moments, whereas rudders and stern planes are still explicitly resolved. It is shown that during the maneuvers, the range of advance coefficients does not deviate much from the design point, making a coupled approach a valid choice for standard maneuvering simulations. By allowing time steps about an order of magnitude larger than for the direct simulation approach, the coupled approach can run about five times faster. The drawback is a loss of resolution in the wake as the direct propeller simulation can resolve blade vortical structures. Open water propeller curves were simulated with both the direct propeller approach and the coupled approach, showing that the coupled approach can match the direct approach performance curves for a wide range of advance coefficients. Simulations of a horizontal overshoot maneuver at two approach speeds were performed, as well as vertical overshoot and controlled turn maneuvers at high speed. Results show that both CFD approaches can reproduce the experimental results for all parameters, with errors typically within 10%.
C1 [Martin, J. Ezequiel; Carrica, Pablo M.] Univ Iowa, C Maxwell Stanley Hydraul Lab, IIHR Hydrosci & Engn, Iowa City, IA 52242 USA.
[Michael, Thad] Naval Surface Warfare Ctr, Carderock Div, West Bethesda, MD USA.
RP Martin, JE (reprint author), Univ Iowa, C Maxwell Stanley Hydraul Lab, IIHR Hydrosci & Engn, Iowa City, IA 52242 USA.
FU U.S. Office of Naval Research [N000141110232, N0001413AF00002]
FX This research was supported by the U.S. Office of Naval Research under
grants N000141110232 and N0001413AF00002, with Dr. Ki-Han Kim as the
program manager. The computations were performed on Engineer Research
and Development Center and Navy Department of Defense Supercomputing
Resource Centers.
NR 37
TC 5
Z9 5
U1 4
U2 14
PU SOC NAVAL ARCHITECTS MARINE ENGINEERS
PI JERSEY CITY
PA 601 PAVONIA AVENUE, JERSEY CITY, NJ 07306 USA
SN 0022-4502
EI 1542-0604
J9 J SHIP RES
JI J. Ship Res.
PD MAR
PY 2015
VL 59
IS 1
BP 31
EP 48
DI 10.5957/JOSR.59.1.140053
PG 18
WC Engineering, Marine; Engineering, Civil
SC Engineering
GA CD4AO
UT WOS:000351025200003
ER
PT J
AU Collins, MD
AF Collins, Michael D.
TI Treatment of ice cover and other thin elastic layers with the parabolic
equation method
SO JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
LA English
DT Article
ID SINGLE-SCATTERING CORRECTION; WAVE-PROPAGATION; APPROXIMATIONS;
INTERFACE; GUIDES
AB The parabolic equation method is extended to handle problems involving ice cover and other thin elastic layers. Parabolic equation solutions are based on rational approximations that are designed using accuracy constraints to ensure that the propagating modes are handled properly and stability constrains to ensure that the non-propagating modes are annihilated. The non-propagating modes are especially problematic for problems involving thin elastic layers. It is demonstrated that stable results may be obtained for such problems by using rotated rational approximations [Milinazzo, Zala, and Brooke, J. Acoust. Soc. Am. 101, 760-766 (1997)] and generalizations of these approximations. The approach is applied to problems involving ice cover with variable thickness and sediment layers that taper to zero thickness.
C1 Naval Res Lab, Washington, DC 20375 USA.
RP Collins, MD (reprint author), Naval Res Lab, Code 7160, Washington, DC 20375 USA.
EM michael.collins@nrl.navy.mil
FU Office of Naval Research
FX This work was supported by the Office of Naval Research.
NR 13
TC 3
Z9 3
U1 2
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 MAR
PY 2015
VL 137
IS 3
BP 1557
EP 1563
DI 10.1121/1.4908220
PG 7
WC Acoustics; Audiology & Speech-Language Pathology
SC Acoustics; Audiology & Speech-Language Pathology
GA CE1OR
UT WOS:000351581800047
PM 25786966
ER
PT J
AU Fulcher, A
Farooq, M
Smith, ML
Li, CX
Scott, JM
Thomson, E
Kaufman, PE
Xue, RD
AF Fulcher, Ali
Farooq, Muhammad
Smith, Michael L.
Li, Chun-Xiao
Scott, Jodi M.
Thomson, Emily
Kaufman, Phillip E.
Xue, Rui-De
TI EVALUATION OF A NEW SPRAYING MACHINE FOR BARRIER TREATMENT AND
PENETRATION OF BIFENTHRIN ON VEGETATION AGAINST MOSQUITOES
SO JOURNAL OF THE AMERICAN MOSQUITO CONTROL ASSOCIATION
LA English
DT Article
DE Mist spray machine; barrier treatment; bifenthrin; Aedes aegypti;
vegetation
ID ADULT AEDES-ALBOPICTUS; SCREENED FIELD CAGES; CULEX-QUINQUEFASCIATUS;
RESIDUAL EFFECTIVENESS; CONVENTIONAL SPRAYERS; PLANT FOLIAGE; EFFICACY;
PERMETHRIN; INSECTICIDES; MALATHION
AB The effectiveness and penetration of a novel, truck-mounted mist sprayer (3WC-30-4P provided by American LongRay) was evaluated with bifenthrin in a large, park-like setting with historic floodwater and woodland mosquito populations. Efficacy evaluations were determined through adult population collections and excised leaf bioassays. Trapping results showed a mean reduction of 77% in mosquito populations in the treated area for 5 sampling events up to 4 wk posttreatment. Leaf bioassays revealed an average mortality of 80% at 2.7 m and 51% at 5.5 m against laboratory-reared Aedes aegypti for 5 posttreatment samples. Leaves collected from the treated areas caused higher mortality at distances closer to the sprayer, though the distance and coverage of bifenthrin application was effective up to 5 m.
C1 [Fulcher, Ali; Smith, Michael L.; Scott, Jodi M.; Thomson, Emily; Xue, Rui-De] Anastasia Mosquito Control Dist, St Augustine, FL 32080 USA.
[Farooq, Muhammad] Naval Air Stn, Navy Entomol Ctr Excellence, Jacksonville, FL 32212 USA.
[Li, Chun-Xiao] Inst Microbiol & Epidemiol, State Key Lab Pathogen & Biosecur, Dept Vector Biol & Control, Beijing 100071, Peoples R China.
[Li, Chun-Xiao; Kaufman, Phillip E.] Univ Florida, Dept Entomol & Nematol, Gainesville, FL 32611 USA.
RP Xue, RD (reprint author), Anastasia Mosquito Control Dist, 500 Old Beach Rd, St Augustine, FL 32080 USA.
OI Kaufman, Phillip/0000-0001-6159-8358
NR 22
TC 1
Z9 1
U1 0
U2 5
PU AMER MOSQUITO CONTROL ASSOC
PI MOUNT LAUREL
PA 15000 COMMERCE PARKWAY, SUITE C, MOUNT LAUREL, NJ 08054 USA
SN 8756-971X
EI 1943-6270
J9 J AM MOSQUITO CONTR
JI J. Am. Mosq. Control Assoc.
PD MAR
PY 2015
VL 31
IS 1
BP 85
EP 92
PG 8
WC Entomology
SC Entomology
GA CD8DZ
UT WOS:000351326700011
PM 25843180
ER
PT J
AU Sessoms, PH
Gottshall, KR
Sturdy, J
Viirre, E
AF Sessoms, Pinata H.
Gottshall, Kim R.
Sturdy, Jordan
Viirre, Erik
TI Head Stabilization Measurements as a Potential Evaluation Tool for
Comparison of Persons With TBI and Vestibular Dysfunction With Healthy
Controls
SO MILITARY MEDICINE
LA English
DT Article; Proceedings Paper
CT Military Health Systems Research Symposium (MHSRS)
CY AUG 13-16, 2012
CL Fort Lauderdale, FL
ID TRAUMATIC BRAIN-INJURY; TREADMILL WALKING; MOVEMENT CONTROL; LOCOMOTION;
GAIT; STABILITY; TRUNK; REHABILITATION; INDIVIDUALS; DISORDERS
AB A large percentage of persons with traumatic brain injury incur some type of vestibular dysfunction requiring vestibular physical therapy. These injuries may affect the natural ability to stabilize the head while walking. A simple method of utilizing motion capture equipment to measure head movement while walking was used to assess improvements in head stabilization of persons undergoing computerized vestibular physical therapy and virtual reality training for treatment of their vestibular problems. Movement data from the head and sacrum during gait were obtained over several visits and then analyzed to determine improved oscillatory head movement relative to the sacrum. The data suggest that, over time with treatment, head stabilization improves and moves toward a pattern similar to that of a healthy control population. This simple analysis of measuring head stability could be transferred to smaller, portable systems that are easily utilized to measure head stability during gait for use in gait assessment and physical therapy training.
C1 [Sessoms, Pinata H.; Sturdy, Jordan] Naval Hlth Res Ctr, Warfighter Performance Dept, San Diego, CA 92106 USA.
[Gottshall, Kim R.] Naval Med Ctr San Diego, Phys Therapy Dept, San Diego, CA 92134 USA.
[Viirre, Erik] Univ Calif San Diego, Dept Neurosci, La Jolla, CA 92093 USA.
RP Sessoms, PH (reprint author), Naval Hlth Res Ctr, Warfighter Performance Dept, 140 Sylvester Rd, San Diego, CA 92106 USA.
FU Bureau of Medicine and Surgery Wounded, Ill, and Injured grant R116
[60818]
FX The authors would like to thank John-David Collins, Kathrine Service,
Aaron Wolf, and LCDR Jose Dominguez for their contributions to this
research study. This work was supported by the Bureau of Medicine and
Surgery Wounded, Ill, and Injured grant R116 under work unit no. 60818.
NR 24
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 MAR
PY 2015
VL 180
IS 3
SU S
BP 135
EP 142
DI 10.7205/MILMED-D-14-00386
PG 8
WC Medicine, General & Internal
SC General & Internal Medicine
GA CD3OQ
UT WOS:000350988500025
PM 25747644
ER
PT J
AU Sessoms, PH
Gottshall, KR
Collins, JD
Markham, AE
Service, KA
Reini, SA
AF Sessoms, Pinata H.
Gottshall, Kim R.
Collins, John-David
Markham, Amanda E.
Service, Kathrine A.
Reini, Seth A.
TI Improvements in Gait Speed and Weight Shift of Persons With Traumatic
Brain Injury and Vestibular Dysfunction Using a Virtual Reality
Computer-Assisted Rehabilitation Environment
SO MILITARY MEDICINE
LA English
DT Article; Proceedings Paper
CT Military Health Systems Research Symposium (MHSRS)
CY AUG 13-16, 2012
CL Fort Lauderdale, FL
ID DISORDERS; BALANCE; HEAD
AB Many people sustaining a traumatic brain injury experience vestibular pathology requiring physical therapy for treatment. This study measured improvements in gait speed and weight shift for subjects receiving vestibular physical therapy using a Computer-Assisted Rehabilitation Environment (CAREN). A 6-session CAREN, 6-session traditional vestibular therapy group was compared with a 12-session CAREN only (0 traditional sessions) therapy group. These two groups were compared to each other and with data from healthy controls performing similar tasks on the CAREN. Those participating in 12 CAREN sessions had greater improvements in gait speed (p = 0.014) and weight shift scores (p < 0.001) and demonstrated similar values achieved by a healthy control population.
C1 [Sessoms, Pinata H.; Collins, John-David; Markham, Amanda E.; Service, Kathrine A.; Reini, Seth A.] Naval Hlth Res Ctr, Warfighter Performance Dept, San Diego, CA 92106 USA.
[Gottshall, Kim R.] Naval Med Ctr San Diego, Phys Therapy Dept, San Diego, CA 92134 USA.
RP Sessoms, PH (reprint author), Naval Hlth Res Ctr, Warfighter Performance Dept, 140 Sylvester Rd, San Diego, CA 92106 USA.
FU Bureau of Medicine and Surgery Wounded, Ill, and Injured grant R116
[60818]
FX We thank Sarah E. Kruger from Walter Reed National Military Medical
Center National Intrepid Center of Excellence for her initial work on
establishing a scoring system for the boat-steering application, from
which our scoring system is based. This work was supported by the Bureau
of Medicine and Surgery Wounded, Ill, and Injured grant R116 under work
unit no. 60818.
NR 12
TC 4
Z9 5
U1 2
U2 11
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 MAR
PY 2015
VL 180
IS 3
SU S
BP 143
EP 149
DI 10.7205/MILMED-D-14-00385
PG 7
WC Medicine, General & Internal
SC General & Internal Medicine
GA CD3OQ
UT WOS:000350988500026
PM 25747645
ER
PT J
AU Jaworski, RL
Jensen, A
Niederberger, B
Congalton, R
Kelly, KR
AF Jaworski, Rebecca L.
Jensen, Andrew
Niederberger, Brenda
Congalton, Robert
Kelly, Karen R.
TI Changes in Combat Task Performance Under Increasing Loads in Active Duty
Marines
SO MILITARY MEDICINE
LA English
DT Article; Proceedings Paper
CT Military Health Systems Research Symposium (MHSRS)
CY AUG 13-16, 2012
CL Fort Lauderdale, FL
ID BODY ARMOR; FEMALE HIKERS; BACKPACK LOAD; CARRIAGE; PAIN; FIREFIGHTERS;
EQUIPMENT; RESPONSES; SOLDIERS; WORK
AB U.S. Marines perform mission tasks under heavy loads which may compromise performance of combat tasks. However, data supporting this performance decrement are limited. Purpose: The aim of this study was to determine the effects of load on performance of combat-related tasks. Methods: Subjects (N = 18) ran a modified Maneuver Under Fire ([MANUF], 300 yards [yd] total: two 25-yd sprints, 25-yd crawl, 75-yd casualty drag, 150-yd ammunition can carry, and grenade toss) portion of the U.S. Marine Corps Combat Fitness Test under 4 trial conditions: neat (no load), 15%, 30%, and 45% of body weight, with a shooting task pre-and post-trial. Results: There was a significant increase in total time to completion as a function of load (p < 0.0001) with a relationship between load and time (r = 0.592, p < 0.0001). Pre- to post-MANUF shot accuracy (p = 0.005) and precision (p < 0.0001) was reduced. Conclusion: Short aerobic performance is significantly impacted by increasing loads. Marksmanship is compromised as a function of fatigue and load. These data suggest that loads of 45% body weight increase time to cover distance and reduce the ability to precisely hit a target.
C1 [Jaworski, Rebecca L.] Marine Corps Syst Command, Marine Expeditionary Rifle Squad, Quantico, VA 22134 USA.
[Jensen, Andrew; Niederberger, Brenda; Congalton, Robert; Kelly, Karen R.] Naval Hlth Res Ctr, Dept Warfighter Performance, San Diego, CA 92106 USA.
RP Jaworski, RL (reprint author), Marine Corps Syst Command, Marine Expeditionary Rifle Squad, 2200 Lester St, Quantico, VA 22134 USA.
FU 1st Marine Expeditionary Force (I MEF)
FX We thank 1st Marine Expeditionary Force (I MEF), especially Maj Mark
Thrasher (I MEF G3 Training Officer) and Lt Col Thomas Freel (Operations
Officer, 5th Marine Regiment), for approval and support of the project.
We also thank the company commanders and Marines from 2nd Battalion, 4th
Marines, for volunteering to participate in this study. This research
was supported by the U. S. Navy Bureau of Medicine and Surgery Wounded,
Ill, and Injured (W42) Program and the Marine Expeditionary Rifle Squad
under Work Unit No. 61016.
NR 31
TC 1
Z9 1
U1 1
U2 8
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 MAR
PY 2015
VL 180
IS 3
SU S
BP 179
EP 186
DI 10.7205/MILMED-D-14-00432
PG 8
WC Medicine, General & Internal
SC General & Internal Medicine
GA CD3OQ
UT WOS:000350988500031
PM 25747650
ER
PT J
AU Keller, MW
Han, PP
Galarneau, MR
Gaball, CW
AF Keller, Matthew W.
Han, Peggy P.
Galarneau, Michael R.
Gaball, Curtis W.
TI Characteristics of Maxillofacial Injuries and Safety of In-Theater
Facial Fracture Repair in Severe Combat Trauma
SO MILITARY MEDICINE
LA English
DT Article
ID OPERATION-IRAQI-FREEDOM; FRONTAL-SINUS FRACTURES; ENDURING FREEDOM; NECK
TRAUMA; AFGHANISTAN; CASUALTIES; WAR; BATTLEFIELD; EXPERIENCE; PERSONNEL
AB The study objectives were to characterize maxillofacial injuries and assess the safety of in-theater facial fracture repair in U.S. military personnel with severe combat trauma from Iraq and Afghanistan. We performed a retrospective chart review of the Expeditionary Medical Encounter Database from 2004 to 2010. 1,345 military personnel with combat-related maxillofacial injuries were identified. Injury severity was quantified with the Abbreviated Injury Scale and Injury Severity Score. Service members with maxillofacial injury and severe combat trauma (Injury Severity Score 3 16) were included. The distribution of facial fractures, types, and outcomes of surgical repairs, incidence of traumatic brain injury, concomitant head and neck injuries, burn rate/severity, and rates of Acinetobacter baumannii colonization and surgical site infection were analyzed. The prevalence of maxillofacial injury in the Expeditionary Medical Encounter Database was 22.7%. The most common mechanism of injury was improvised explosive device (65.7%). Midface trauma and facial burns were common. Approximately 64% of the study sample sustained traumatic brain injury. Overall, 45.6% (109/239) had at least one facial bone fracture. Of those with facial fractures, 64.2% (n = 70) underwent surgical repair. None of the service members who underwent in-theater facial fracture repair developed A. baumannii facial wound infection or implant extrusion.
C1 [Keller, Matthew W.; Gaball, Curtis W.] Naval Med Ctr San Diego, Dept Otolaryngol Head & Neck Surg, San Diego, CA 92134 USA.
[Han, Peggy P.; Galarneau, Michael R.] Naval Hlth Res Ctr, Med Modeling Simulat & Mission Support Dept, San Diego, CA 92106 USA.
RP Keller, MW (reprint author), Naval Med Ctr San Diego, Dept Otolaryngol Head & Neck Surg, San Diego, CA 92134 USA.
FU U.S. Navy Bureau of Medicine and Surgery under the Wounded, III;
Injured/Psychological Health/Traumatic Brain Injury Program [60808]
FX Dr. Matthew Keller had full access to all the data in the study and
takes responsibility for the integrity of the data and the accuracy of
the data analysis. Mary Clouser critically revised the article for
important intellectual content (Medical Modeling, Simulation, and
Mission Support Department, Naval Health Research Center) and Amber
Dougherty (Medical Modeling, Simulation, and Mission Support Department,
Naval Health Research Center) performed scientific and technical
editorial reviews of the article. This work was supported by the U.S.
Navy Bureau of Medicine and Surgery under the Wounded, III, and
Injured/Psychological Health/Traumatic Brain Injury Program under work
unit no. 60808.
NR 43
TC 0
Z9 0
U1 2
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 MAR
PY 2015
VL 180
IS 3
BP 315
EP 320
DI 10.7205/MILMED-D-14-00345
PG 6
WC Medicine, General & Internal
SC General & Internal Medicine
GA CD3OI
UT WOS:000350987700018
PM 25735023
ER
PT J
AU Feinberg, JH
Ryan, MAK
Johns, M
Marvin, BA
Reading, JE
White, MR
AF Feinberg, Jeffrey H.
Ryan, Margaret A. K.
Johns, Michael
Marvin, Blake A.
Reading, James E.
White, Martin R.
TI Smoking Cessation and Improvement in Physical Performance Among Young
Men
SO MILITARY MEDICINE
LA English
DT Article
ID CURRENT CIGARETTE-SMOKING; UNITED-STATES-ARMY; BODY-MASS INDEX;
ADOLESCENT SMOKERS; WEIGHT-GAIN; TOBACCO USE; MILITARY PERSONNEL;
GENDER-DIFFERENCES; PULMONARY-FUNCTION; FITNESS
AB Tobacco use among young adults is a major public health challenge. Near-term benefits of cessation may motivate active young people to quit or avoid smoking. Military basic training includes mandatory tobacco cessation, as well as uniform physical conditioning regimes, creating an opportunity to evaluate changes in physical performance metrics in direct relation to smoking cessation. These analyses included data from all men who completed Marine Corps recruit training in San Diego, California, between 2002 and 2006. Recruits reported tobacco use and other health metrics on a pretraining survey. Initial and final aerobic run-times were recorded over the 3-month training period. Multivariable linear regression analyses assessed changes in run-speed relative to pre-enlistment smoking history. Among 52,419 young men included in analyses, 13,248 (25.3%) reported smoking before enlistment. Average run-speeds improved among all groups of recruits; however, improvement was greater among prior smokers compared to recruits with no history of smoking (average increase of 0.31 vs. 0.21 miles per hour) and statistically significant in multivariate analyses. Smoking cessation in this cohort of young men resulted in improved physical aerobic performance, independent of other behavioral health characteristics. These data may be useful in promoting and motivating smoking cessation among young, active adults.
C1 [Feinberg, Jeffrey H.; Ryan, Margaret A. K.; Johns, Michael; Marvin, Blake A.] Naval Hosp Camp Pendleton, Camp Pendleton, CA 92055 USA.
[Reading, James E.] Marine Corps Recruit Depot, San Diego, CA 92140 USA.
[White, Martin R.] Naval Hlth Res Ctr, San Diego, CA 92106 USA.
RP Feinberg, JH (reprint author), Naval Hosp Camp Pendleton, Bldg H200, Camp Pendleton, CA 92055 USA.
FU Department of Defense under Naval Health Research Center [61133]
FX We are indebted to both the participants and the Recruit Assessment
Program support team at the Naval Health Research Center, especially Dr.
Christopher Phillips, Dr. Nancy Crum-Cianflone, Lauren Kipp, Dennis
Hernando, and Kartavya Vyas. This work was supported by the Department
of Defense under Naval Health Research Center work unit 61133 and
performed under institutional review board-approved protocol
NHRC.2000.0003.
NR 46
TC 0
Z9 0
U1 1
U2 6
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 MAR
PY 2015
VL 180
IS 3
BP 343
EP 349
DI 10.7205/MILMED-D-14-00370
PG 7
WC Medicine, General & Internal
SC General & Internal Medicine
GA CD3OI
UT WOS:000350987700022
PM 25735027
ER
PT J
AU Koch, KK
Moran, TJ
AF Koch, Krista K.
Moran, Thomas J.
TI Spontaneous Intracranial Hypotension: Trendelenberg Just May Be the
Answer
SO MILITARY MEDICINE
LA English
DT Article
AB Spontaneous intracranial hypotension may share some characteristics with the more common causes of headaches such as migraines or tension headaches, but its diagnosis and treatment is much more laborious and invasive. Here, the case of a 31-year-old man with multiple weeks of positional headaches is described. This symptom persisted following multiple blood patches, and progressed to worsening mental status, encephalopathy, and eventually obtundation with Glascow Coma Score less than 8. Surgery was required; however, small improvement was seen on imaging or in the patient's status. When the patient's position was changed to 20 degrees of Trendelenberg, immediate improvement was seen, leading to a full recovery. Although epidural blood patch is considered the treatment mainstay for spontaneous intracranial hypotension, this case shows another factor to consider in the treatment of this difficult condition.
C1 [Koch, Krista K.] Naval Aerosp Med Inst, Pensacola, FL 32508 USA.
[Moran, Thomas J.] Naval Med Ctr Portsmouth, Dept Anesthesiol & Pain Med, Portsmouth, VA 23708 USA.
RP Koch, KK (reprint author), Naval Aerosp Med Inst, 340 Hulse Rd, Pensacola, FL 32508 USA.
NR 5
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 MAR
PY 2015
VL 180
IS 3
BP E369
EP E371
DI 10.7205/MILMED-D-14-00141
PG 3
WC Medicine, General & Internal
SC General & Internal Medicine
GA CD3OI
UT WOS:000350987700002
PM 25735032
ER
PT J
AU Vaxenburg, R
Rodina, A
Shabaev, A
Lifshitz, E
Efros, AL
AF Vaxenburg, Roman
Rodina, Anna
Shabaev, Andrew
Lifshitz, Efrat
Efros, Alexander L.
TI Nonradiative Auger Recombination in Semiconductor Nanocrystals
SO NANO LETTERS
LA English
DT Article
DE Auger recombination; CdSe; nanocrystal; quantum dot; trion; boundary
conditions
ID QUANTUM DOTS; OPTICAL GAIN; INTERMITTENCY; RELAXATION; DEPENDENCE;
INTERFACE; EMISSION; MATRIX; RODS; WIRE
AB We calculate the :rate nonradiative Auger recombination in negatively charged CdSe nanocrystals (NCs). The rate is nonmonotonic strongly oscillating with NC size, and sensitive to the NC surface. The oscillations result in nonexponential decay of carriers in NC ensembles. Using a standard single-exponential approximation of the decay dynamics, we determine the apparent site dependence of the Auger rate in an ensemble and,derive CdSe surface parameters consistent with the experimental dependence on size.
C1 [Vaxenburg, Roman; Lifshitz, Efrat] Technion Israel Inst Technol, IL-32000 Haifa, Israel.
[Rodina, Anna] Russian Acad Sci, AF Ioffe Phys Tech Inst, St Petersburg 194021, Russia.
[Shabaev, Andrew] George Mason Univ, Fairfax, VA 22030 USA.
[Efros, Alexander L.] Naval Res Lab, Washington, DC 20375 USA.
RP Efros, AL (reprint author), Naval Res Lab, Washington, DC 20375 USA.
EM efros@nrl.navy.mil
RI Vaxenburg, Roman/P-8190-2016
FU Israel Science Foundation [1009/07, 1425/04]; U.S.A.-Israel Binational
Science Foundation [2006-225]; Israel Council for High Education - Focal
Area Technology [872967]; Volkswagen Stiftung [88116]; Russell Berrie
Nanotechnology Institute; Schulich Faculty of Chemistry, Technion;
Center for Advanced Solar Photophysics (CASP), an Energy Frontier
Research Center (EFRC) - U.S. Department of Energy (DOE), Office of
Science, Office of Basic Energy Sciences (BES); Office of Naval Research
(ONR) through the Naval Research Laboratory Basic Research Program
FX The authors thank C. Stephen Hellberg for critical reading of the
manuscript. R.V. and E.L. acknowledge the support of the Israel Science
Foundation (Project No. 1009/07 and 1425/04), the U.S.A.-Israel
Binational Science Foundation (No. 2006-225), the Israel Council for
High Education - Focal Area Technology (No. 872967), the Volkswagen
Stiftung, (No. 88116), Russell Berrie Nanotechnology Institute, and
Schulich Faculty of Chemistry, Technion. A.S. acknowledges the support
of the Center for Advanced Solar Photophysics (CASP), an Energy Frontier
Research Center (EFRC) funded by the U.S. Department of Energy (DOE),
Office of Science, Office of Basic Energy Sciences (BES); A.L.E.
acknowledges the financial support of the Office of Naval Research (ONR)
through the Naval Research Laboratory Basic Research Program.
NR 43
TC 16
Z9 16
U1 6
U2 34
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1530-6984
EI 1530-6992
J9 NANO LETT
JI Nano Lett.
PD MAR
PY 2015
VL 15
IS 3
BP 2092
EP 2098
DI 10.1021/nl504987h
PG 7
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied;
Physics, Condensed Matter
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Physics
GA CD6GQ
UT WOS:000351188000099
PM 25693512
ER
PT J
AU Hollon, J
Puppa, EL
Greenwald, B
Goldberg, E
Guerrerio, A
Fasano, A
AF Hollon, Justin
Puppa, Elaine Leonard
Greenwald, Bruce
Goldberg, Eric
Guerrerio, Anthony
Fasano, Alessio
TI Effect of Gliadin on Permeability of Intestinal Biopsy Explants from
Celiac Disease Patients and Patients with Non-Celiac Gluten Sensitivity
SO NUTRIENTS
LA English
DT Article
ID IRRITABLE-BOWEL-SYNDROME; CLINICAL-RESPONSE; BARRIER FUNCTION;
CONTROLLED-TRIAL; TIGHT JUNCTIONS; UNITED-STATES; FREE DIET; ZONULIN;
INTERLEUKIN-10; INTOLERANCE
AB Background: Intestinal exposure to gliadin leads to zonulin upregulation and consequent disassembly of intercellular tight junctions and increased intestinal permeability. We aimed to study response to gliadin exposure, in terms of barrier function and cytokine secretion, using intestinal biopsies obtained from four groups: celiac patients with active disease (ACD), celiac patients in remission (RCD), non-celiac patients with gluten sensitivity (GS) and non-celiac controls (NC). Methods: Ex-vivo human duodenal biopsies were mounted in microsnapwells and luminally incubated with either gliadin or media alone. Changes in transepithelial electrical resistance were monitored over 120 min. Media was subsequently collected and cytokines quantified. Results: Intestinal explants from all groups (ACD (n = 6), RCD (n = 6), GS (n = 6), and NC (n = 5)) demonstrated a greater increase in permeability when exposed to gliadin vs. media alone. The increase in permeability in the ACD group was greater than in the RCD and NC groups. There was a greater increase in permeability in the GS group compared to the RCD group. There was no difference in permeability between the ACD and GS groups, between the RCD and NC groups, or between the NC and GS groups. IL-10 was significantly greater in the media of the NC group compared to the RCD and GS groups. Conclusions: Increased intestinal permeability after gliadin exposure occurs in all individuals. Following gliadin exposure, both patients with gluten sensitivity and those with active celiac disease demonstrate a greater increase in intestinal permeability than celiacs in disease remission. A higher concentration of IL-10 was measured in the media exposed to control explants compared to celiac disease in remission or gluten sensitivity.
C1 [Hollon, Justin] Naval Med Ctr Portsmouth, Dept Pediat Gastroenterol, Portsmouth, VA 23708 USA.
[Puppa, Elaine Leonard] Univ Maryland, Sch Med, Baltimore, MD 21201 USA.
[Greenwald, Bruce; Goldberg, Eric] Univ Maryland, Div Gastroenterol & Hepatol, Sch Med, Baltimore, MD 21201 USA.
[Guerrerio, Anthony] Johns Hopkins Univ, Div Pediat Gastroenterol & Nutr, Sch Med, Baltimore, MD 21205 USA.
[Fasano, Alessio] Massachusetts Gen Hosp, Ctr Celiac Res, Boston, MA 02114 USA.
[Fasano, Alessio] Massachusetts Gen Hosp Children, Div Pediat Gastroenterol & Nutr, Boston, MA 02114 USA.
RP Hollon, J (reprint author), Naval Med Ctr Portsmouth, Dept Pediat Gastroenterol, 620 John Paul Jones Circle, Portsmouth, VA 23708 USA.
EM justin.hollon@med.navy.mil; eleonard@peds.umaryland.edu;
bgreenwa@medicine.umaryland.edu; egoldber@medicine.umaryland.edu;
aguerrerio@jhmi.edu; afasano@partners.org
NR 28
TC 22
Z9 23
U1 4
U2 21
PU MDPI AG
PI BASEL
PA POSTFACH, CH-4005 BASEL, SWITZERLAND
SN 2072-6643
J9 NUTRIENTS
JI Nutrients
PD MAR
PY 2015
VL 7
IS 3
BP 1565
EP 1576
DI 10.3390/nu7031565
PG 12
WC Nutrition & Dietetics
SC Nutrition & Dietetics
GA CE6EU
UT WOS:000351930200007
PM 25734566
ER
PT J
AU Coelho, EF
Hogan, P
Jacobs, G
Thoppil, P
Huntley, HS
Haus, BK
Lipphardt, BL
Kirwan, AD
Ryan, EH
Olascoaga, J
Beron-Vera, F
Poje, AC
Griffa, A
Ozgokmen, TM
Mariano, AJ
Novelli, G
Haza, AC
Bogucki, D
Chen, SS
Curcic, M
Iskandarani, M
Judt, F
Laxague, N
Reniers, AJHM
Valle-Levinson, A
Wei, M
AF Coelho, Emanuel F.
Hogan, P.
Jacobs, G.
Thoppil, P.
Huntley, H. S.
Haus, B. K.
Lipphardt, B. L., Jr.
Kirwan, A. D., Jr.
Ryan, E. H.
Olascoaga, J.
Beron-Vera, F.
Poje, A. C.
Griffa, A.
Oezgoekmen, T. M.
Mariano, A. J.
Novelli, G.
Haza, A. C.
Bogucki, D.
Chen, S. S.
Curcic, M.
Iskandarani, M.
Judt, F.
Laxague, N.
Reniers, A. J. H. M.
Valle-Levinson, A.
Wei, M.
TI Ocean current estimation using a Multi-Model Ensemble Kalman Filter
during the Grand Lagrangian Deployment experiment (GLAD)
SO OCEAN MODELLING
LA English
DT Article
DE Ocean modeling; Data assimilation; Ensemble forecasting; Ensemble Kalman
Filter; Lagrangian observations; Ocean currents
ID DATA ASSIMILATION; DRIFTER OBSERVATIONS
AB In the summer and fall of 2012, during the GLAD experiment in the Gulf of Mexico, the Consortium for Advanced Research on Transport of Hydrocarbon in the Environment (CARTHE) used several ocean models to assist the deployment of more than 300 surface drifters. The Navy Coastal Ocean Model (NCOM) at 1 km and 3 km resolutions, the US Navy operational NCOM at 3 km resolution (AMSEAS), and two versions of the Hybrid Coordinates Ocean Model (HYCOM) set at 4 km were running daily and delivering 72-h range forecasts. They all assimilated remote sensing and local profile data but they were not assimilating the drifter's observations. This work presents a non-intrusive methodology named Multi-Model Ensemble Kalman Filter that allows assimilating the local drifter data into such a set of models, to produce improved ocean currents forecasts. The filter is to be used when several modeling systems or ensembles are available and/or observations are not entirely handled by the operational data assimilation process. It allows using generic in situ measurements over short time windows to improve the predictability of local ocean dynamics and associated high-resolution parameters of interest for which a forward model exists (e.g. oil spill plumes). Results can be used for operational applications or to derive enhanced background fields for other data assimilation systems, thus providing an expedite method to non-intrusively assimilate local observations of variables with complex operators. Results for the GLAD experiment show the method can improve water velocity predictions along the observed drifter trajectories, hence enhancing the skills of the models to predict individual trajectories. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Coelho, Emanuel F.] Univ New Orleans, Dept Phys, New Orleans, LA 70148 USA.
[Coelho, Emanuel F.; Hogan, P.; Jacobs, G.; Thoppil, P.; Wei, M.] Naval Res Lab, Stennis Space Ctr, MS 39529 USA.
[Huntley, H. S.; Lipphardt, B. L., Jr.; Kirwan, A. D., Jr.] Univ Delaware, Coll Earth Ocean & Environm, Newark, DE 19716 USA.
[Haus, B. K.; Ryan, E. H.; Olascoaga, J.; Beron-Vera, F.; Oezgoekmen, T. M.; Mariano, A. J.; Novelli, G.; Haza, A. C.; Chen, S. S.; Curcic, M.; Iskandarani, M.; Judt, F.; Laxague, N.; Reniers, A. J. H. M.] Univ Miami, Rosenstiel Sch Marine & Atmospher Sci, Miami, FL 33149 USA.
[Poje, A. C.] CUNY Coll Staten Isl, Staten Isl, NY 10314 USA.
[Griffa, A.] CNR, Ist Sci Marine UOS Puzzuolo di Lerici, I-19032 Puzzuolo Di Lerici, SP, Italy.
[Bogucki, D.] Texas A&M Univ, Dept Phys & Environm Sci, Corpus Christi, TX 78412 USA.
[Valle-Levinson, A.] Univ Florida, Civil & Coastal Engn Dept, Gainesville, FL 32611 USA.
RP Coelho, EF (reprint author), CMRE, La Spezia, Italy.
EM emanuel.coelho@cmre.nato.int
RI Judt, Falko/Q-8380-2016
OI Judt, Falko/0000-0001-7710-9862
FU BP/The Gulf of Mexico Research Initiative; US Office of Naval Research
[N0003913WX02913]
FX This research was made possible in part by a Grant from BP/The Gulf of
Mexico Research Initiative, and in part by the US Office of Naval
Research grant N0003913WX02913. This paper is contribution
NRL/JA/7320-13-1783 and has been approved for public release.
NR 23
TC 7
Z9 7
U1 5
U2 20
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 MAR
PY 2015
VL 87
BP 86
EP 106
DI 10.1016/j.ocemod.2014.11.001
PG 21
WC Meteorology & Atmospheric Sciences; Oceanography
SC Meteorology & Atmospheric Sciences; Oceanography
GA CD3PD
UT WOS:000350989900007
ER
PT J
AU Gibson, JD
AF Gibson, James D.
TI A direct search approach to optimization for nonlinear model predictive
control
SO OPTIMAL CONTROL APPLICATIONS & METHODS
LA English
DT Article
DE model predictive control; real-time optimization
ID RECEDING HORIZON CONTROL; CONSTRAINED OPTIMIZATION; SYSTEMS; BLACK
AB Nonlinear model predictive control (NMPC) depends on performing a constrained nonlinear optimization, based on predictions of future system behavior, during a sampling interval to determine the control action to be applied to the system during the next time step. The difficulty in designing an optimization procedure to solve a constrained NMPC problem is due to the finite time horizon to which the predictive model is evaluated, the state and control actuator constraints, and sampling interval length. The resulting objective function, which is to be optimized is typically not differentiable. Although there are many commercial, shareware, and open-source optimization packages available that can perform a nonlinear constrained optimization for most cases, there are NMPC implementations requiring embedded code or that must meet stringent timing requirements that preclude the use of off-the-shelf packages. In cases where the predictive model is known, such as aerodynamic or hydrodynamic systems, a direct-search optimization algorithm can perform well enough in a real-time environment. Direct search algorithms are simple to implement and can be made more efficient by applying differential geometric techniques to the search methodology. The typical smoothness of the equations of motion for vehicular systems allows the objective function's stationarities to be handled in a straight-forward way. Copyright (c) 2013 John Wiley & Sons, Ltd.
C1 Naval Surface Warfare Ctr, Carderock Div, Maneuvering & Control Dept Code 861, West Bethesda, MD 20817 USA.
RP Gibson, JD (reprint author), Naval Surface Warfare Ctr, Carderock Div, Maneuvering & Control Dept Code 861, 9500 MacArthur Blvd, West Bethesda, MD 20817 USA.
EM james.d.gibson@navy.mil
FU Office for Naval Research
FX Also, thanks to the Office for Naval Research, Dr. Ronald D. Joslin,
funding officer.
NR 22
TC 0
Z9 0
U1 2
U2 8
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0143-2087
EI 1099-1514
J9 OPTIM CONTR APPL MET
JI Optim. Control Appl. Methods
PD MAR-APR
PY 2015
VL 36
IS 2
BP 139
EP 157
DI 10.1002/oca.2105
PG 19
WC Automation & Control Systems; Operations Research & Management Science;
Mathematics, Applied
SC Automation & Control Systems; Operations Research & Management Science;
Mathematics
GA CD5XO
UT WOS:000351162300001
ER
PT J
AU Wang, S
Marrone, LF
Crawford, T
Koh, S
AF Wang, Sophia
Marrone, Laura F.
Crawford, Tamarra
Koh, Steve
TI CogTeach: Teaching Residents to Communicate with Older Patients Who Have
Mild Neurocognitive Disorder
SO AMERICAN JOURNAL OF GERIATRIC PSYCHIATRY
LA English
DT Meeting Abstract
CT Annual Meeting of the American-Association-for-Geriatric-Psychiatry
CY MAR 27-30, 2015
CL New Orleans, LA
SP Amer Assoc Geriatr Psychiat
C1 [Wang, Sophia] Duke Univ, Med Ctr, Durham, NC USA.
[Marrone, Laura F.; Koh, Steve] Univ Calif San Diego, San Diego, CA 92103 USA.
[Koh, Steve] US Naval Hosp, Balboa, San Diego, CA 92134 USA.
[Wang, Sophia; Crawford, Tamarra] Durham VA Med Ctr, Durham, NC USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 1064-7481
EI 1545-7214
J9 AM J GERIAT PSYCHIAT
JI Am. J. Geriatr. Psychiatr.
PD MAR
PY 2015
VL 23
IS 3
SU S
MA EI 47
BP S114
EP S115
PG 3
WC Geriatrics & Gerontology; Gerontology; Psychiatry
SC Geriatrics & Gerontology; Psychiatry
GA CD1IV
UT WOS:000350829500107
ER
PT J
AU Trasatti, M
Akamatsu, H
Lovisari, L
Klein, U
Bonafede, A
Bruggen, M
Dallacasa, D
Clarke, T
AF Trasatti, M.
Akamatsu, H.
Lovisari, L.
Klein, U.
Bonafede, A.
Brueggen, M.
Dallacasa, D.
Clarke, T.
TI The radio relic in Abell 2256: overall spectrum and implications for
electron acceleration
SO ASTRONOMY & ASTROPHYSICS
LA English
DT Article
DE galaxies: clusters: general; galaxies: clusters: individual: Abell 2256;
acceleration of particles
ID DIFFUSIVE SHOCK ACCELERATION; LARGE ARRAY OBSERVATIONS; RAY-CLUSTER
ABELL-2256; GALAXY CLUSTER; PARTICLE REACCELERATION; COMPRESSIBLE
TURBULENCE; ENERGY-SPECTRUM; SKY SURVEY; EMISSION; NEARBY
AB Context. Radio relics are extended synchrotron sources thought to be produced by shocks in the outskirts of merging galaxy clusters. The cluster Abell. 2256 hosts one of the most intriguing examples in this class of sources. It has been found that this radio relic has a rather flat integrated spectrum at low frequencies that would imply an injection spectral index for the electrons that is inconsistent with the flattest allowed by the test particle diffusive shock acceleration (DSA).
Aims. We aim at testing the origins of the radio relic in Abell 2256.
Methods. We performed new high-frequency observations at 2273, 2640, and 4850 MHz. Combining these new observations with images available in the literature, We constrain the radio-integrated spectrum of the radio relic in Abell 2256 over the widest sampled frequency range collected so far for this class of objects (63-10 450 MHz). Moreover, we used X-ray observations of the cluster to check the temperature structure in the regions around the radio relic.
Results. We find that the relic keeps an unusually flat behavior up to high frequencies. Although the relic integrated spectrum between 63 and 10 450 MHz is not inconsistent with a single power law with alpha(10 450)(63) = 0.92 +/- 0.02, we find hints of a steepening at frequencies >1400 MHz. The two frequency ranges 63-1369 MHz and 1369-10 450 MHz are, indeed, best represented by two different power laws, with alpha(1369)(63) = 0.85 +/- 0.01 and alpha(10 450)(1369) = 1.00 +/- 0.02. This broken power law would require special conditions to be explained in terms of test-particle DSA, e.g., non-stationarity of the spectrum, which would make the relic in A2256 a rather young system, and/or non-stationarity of the shock. On the other hand, the single power law would make of this relic the one with the flattest integrated spectrum known so far, even flatter than what is allowed in the test-particle approach to DSA. We find a rather low temperature ratio of T-2/T-1 similar to 1.7 across the G region of the radio relic and no temperature jump across the 11 region. However, in both regions projection effects might have affected the measurements, thereby reducing the contrast.
C1 [Trasatti, M.; Lovisari, L.; Klein, U.] Univ Bonn, Argelander Inst Astron, D-53121 Bonn, Germany.
[Akamatsu, H.] SRON Netherlands Inst Space Res, NL-3584 CA Utrecht, Netherlands.
[Bonafede, A.; Brueggen, M.] Univ Hamburg, Hamburger Sternwarte, D-21029 Hamburg, Germany.
[Dallacasa, D.] Univ Bologna, Dipartimento Astron, I-40127 Bologna, Italy.
[Dallacasa, D.] INAF Ist Radioastron, I-40129 Bologna, Italy.
[Clarke, T.] Naval Res Lab, Washington, DC 20375 USA.
RP Trasatti, M (reprint author), Univ Bonn, Argelander Inst Astron, Hugel 71, D-53121 Bonn, Germany.
EM trasatti@astro.uni-bonn.de
FU German Deutsche Forschungsgemeinscluift, DFG project [FOR 1254]; NWO;
Netherlands Organization for Scientific Research; DFG [RE 1462/6, LO
2009/1-1]; Basic research in radio astronomy at the Naval Research
Laboratory [6.1]
FX We thank the anonymous referee for valuable suggestions, which improved
the manuscript. U.K, A.B., and M.B. acknowledge the financial support by
the German Deutsche Forschungsgemeinscluift, DFG project FOR 1254. SRON
is supported financially by NWO, the Netherlands Organization for
Scientific Research. L.L. acknowledges support from the DFG through the
research grant RE 1462/6 and LO 2009/1-1. Basic research in radio
astronomy at the Naval Research Laboratory is supported by 6.1 Base
funding. The authors thank M. Brentjens for providing the radio image at
351 MHz and R. van Weeren for providing information on the flux density
at 63 MHz. M.T. thanks F. Vazza for helpful discussions on CRs
acceleration mechanism and K. Basu for helping in the evaluation of the
SZ effect. We thank the P.I. of the Suzaku observations K. Hayashida. We
also thank M. Kawaharada for providing unpublished Suzaku offset data.
This work is partly based on observations with the 100-m telescope of
the MPIfR (Max-Planck-Institut fur Radioastronomie) at Effelsberg. This
work is partly based on observations with the WSRT. The Westerbork
Synthesis Radio Telescope is operated by ASTRON (Netherlands Foundation
for Research in Astronomy) with support from the Netherlands Foundation
for Scientific Research (NWO).
NR 63
TC 10
Z9 10
U1 0
U2 2
PU EDP SCIENCES S A
PI LES ULIS CEDEX A
PA 17, AVE DU HOGGAR, PA COURTABOEUF, BP 112, F-91944 LES ULIS CEDEX A,
FRANCE
SN 1432-0746
J9 ASTRON ASTROPHYS
JI Astron. Astrophys.
PD MAR
PY 2015
VL 575
AR A45
DI 10.1051/0004-6361/201423972
PG 18
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA CC3LA
UT WOS:000350249100045
ER
PT J
AU Allenby, BR
AF Allenby, Braden R.
TI The paradox of dominance: The age of civilizational conflict
SO BULLETIN OF THE ATOMIC SCIENTISTS
LA English
DT Article
DE civilizational conflict; civil-military relationships; fourth generation
warfare; Islamic State; ISIS; new generation warfare; unrestricted
warfare
AB American dominance of conventional military capabilities has forced potential competitors to explore asymmetric responses. Some of these, such as cyber conflict capabilities, may appear primarily tactical, but taken together with emerging strategic doctrines such as Russian new generation warfare or Chinese unrestricted warfare and unpredictable and potent technological evolution, an arguably new form of warfarecivilizational conflictis emerging. This does not mean that current strategic and operational doctrine and activities are obsolete, but it does mean that a new conceptual framework for conflict among cultures is required, within which such more traditional operations are developed and deployed.
C1 [Allenby, Braden R.] Arizona State Univ, Mil Operat & Natl Secur, Engn & Eth, Tempe, AZ 85287 USA.
[Allenby, Braden R.] Arizona State Univ, Mil Operat & Natl Secur, Civil Environm & Sustainable Engn, Tempe, AZ 85287 USA.
[Allenby, Braden R.] Arizona State Univ, Mil Operat & Natl Secur, Consortium Emerging Technol, Tempe, AZ 85287 USA.
[Allenby, Braden R.] AAAS, Washington, DC USA.
[Allenby, Braden R.] US Naval Acad, Annapolis, MD 21402 USA.
[Allenby, Braden R.] Lawrence Livermore Natl Lab, Energy & Environm Syst, Livermore, CA USA.
[Allenby, Braden R.] Natl Acad Engn, Washington, DC 20418 USA.
RP Allenby, BR (reprint author), Arizona State Univ, Mil Operat & Natl Secur, Engn & Eth, Tempe, AZ 85287 USA.
FU Lincoln Center for Applied Ethics at Arizona State University, USA
FX The author would like to thank the Lincoln Center for Applied Ethics at
Arizona State University, USA for its support of his work in the applied
ethics of emerging military and security technologies.
NR 12
TC 0
Z9 0
U1 0
U2 11
PU SAGE PUBLICATIONS LTD
PI LONDON
PA 1 OLIVERS YARD, 55 CITY ROAD, LONDON EC1Y 1SP, ENGLAND
SN 0096-3402
EI 1938-3282
J9 B ATOM SCI
JI Bull. Atom. Scient.
PD MAR-APR
PY 2015
VL 71
IS 2
BP 60
EP 74
DI 10.1177/0096340215571911
PG 15
WC International Relations; Social Issues
SC International Relations; Social Issues
GA CD0JJ
UT WOS:000350757800009
ER
PT J
AU Williams, EC
Frasco, MA
Jacobson, IG
Maynard, C
Littman, AJ
Seelig, AD
Crum-Cianflone, NF
Nagel, A
Boyko, EJ
AF Williams, Emily C.
Frasco, Melissa A.
Jacobson, Isabel G.
Maynard, Charles
Littman, Alyson J.
Seelig, Amber D.
Crum-Cianflone, Nancy F.
Nagel, Anna
Boyko, Edward J.
TI Risk factors for relapse to problem drinking among current and former US
military personnel: A prospective study of the Millennium Cohort
SO DRUG AND ALCOHOL DEPENDENCE
LA English
DT Article
DE Problem drinking; Alcohol use disorders; Millennium Cohort Study;
Military; Relapse prospective study; Risk factors
ID ALCOHOL-RELATED PROBLEMS; MENTAL-HEALTH PROBLEMS; PRIMARY-CARE;
FOLLOW-UP; COMBAT EXPOSURE; SERVICE MEMBERS; BINGE DRINKING;
UNITED-STATES; USE DISORDERS; SUBSTANCE USE
AB Background: Military service members may be prone to relapse to problem drinking after remission, given a culture of alcohol use as a coping mechanism for stressful or traumatic events associated with military duties or exposures. However, the prevalence and correlates of relapse are unknown. We sought to identify socio-demographic, military, behavioral, and health characteristics associated with relapse among current and former military members with remittent problem drinking.
Methods: Participants in the longitudinal Millennium Cohort Study who reported problem drinking at baseline (2001-2003) and were remittent at first follow-up (2004-2006) were included (n = 6909). Logistic regression models identified demographic, military service, behavioral, and health characteristics that predicted relapse (report of >= 1 past-year alcohol-related problem on the validated Patient Health Questionnaire) at the second follow-up (2007-2008).
Results: Sixteen percent of those with remittent problem drinking relapsed. Reserve/National Guard members compared with active-duty members (odds ratio [OR] = 1.71,95% confidence interval [CI]: 1.45-2.01), members separated from the military during follow-up (OR= 1.46, 95% CI: 1.16-1.83), and deployers who reported combat exposure (OR = 1.32, 95% CI: 1.07-1.62, relative to non-deployers) were significantly more likely to relapse. Those with multiple deployments were significantly less likely to relapse (OR= 0.73,95% CI: 0.58-0.92). Behavioral factors and mental health conditions also predicted relapse.
Conclusion: Relapse was common and associated with military and non-military factors. Targeted intervention to prevent relapse may be indicated for military personnel in particular subgroups, such as Reservists, veterans, and those who deploy with combat exposure. (C) 2015 Published by Elsevier Ireland Ltd.
C1 [Williams, Emily C.; Maynard, Charles] Denver Seattle Ctr Innovat Veteran Ctr & Value Dr, Dept Vet Affairs Puget Sound Hlth Care Syst, Hlth Serv Res Dev, Seattle, WA 98101 USA.
[Williams, Emily C.; Maynard, Charles] Univ Washington, Sch Publ Hlth, Dept Hlth Serv, Seattle, WA 98195 USA.
[Frasco, Melissa A.; Jacobson, Isabel G.; Crum-Cianflone, Nancy F.; Nagel, Anna] Naval Hlth Res Ctr, Deployment Hlth Res Dept, San Diego, CA 92106 USA.
[Maynard, Charles; Littman, Alyson J.; Seelig, Amber D.; Boyko, Edward J.] Seattle Epidemiol Res & Informat Ctr, Dept Vet Affairs Puget Sound Hlth Care Syst, Seattle, WA 98108 USA.
[Littman, Alyson J.; Boyko, Edward J.] Univ Washington, Sch Publ Hlth, Dept Epidemiol, Seattle, WA 98195 USA.
[Crum-Cianflone, Nancy F.] Naval Med Ctr San Diego, San Diego, CA 92134 USA.
[Boyko, Edward J.] Univ Washington, Sch Med, Dept Med, Seattle, WA 98195 USA.
RP Williams, EC (reprint author), VA Puget Sound Hlth Care Syst, Dept Vet Affairs Puget Sound Hlth Care Syst, 1100 Olive Way,Suite 1400, Seattle, WA 98101 USA.
EM emily.williams3@va.gov; Frasco.Melissa@gmail.com;
isabeljacobson@yahoo.com; cmaynard@u.washington.edu;
Alyson.Littman@va.gov; Amber.Seelig@va.gov; nancy32red@yahoo.com;
anna.nagel@med.navy.mil; Edward.Boyko@va.gov
RI Maynard, Charles/N-3906-2015
OI Maynard, Charles/0000-0002-1644-7814
FU HSRD VA [IK2 HX001161]
NR 71
TC 2
Z9 2
U1 2
U2 8
PU ELSEVIER IRELAND LTD
PI CLARE
PA ELSEVIER HOUSE, BROOKVALE PLAZA, EAST PARK SHANNON, CO, CLARE, 00000,
IRELAND
SN 0376-8716
EI 1879-0046
J9 DRUG ALCOHOL DEPEN
JI Drug Alcohol Depend.
PD MAR 1
PY 2015
VL 148
BP 93
EP 101
DI 10.1016/j.drugalcdep.2014.12.031
PG 9
WC Substance Abuse; Psychiatry
SC Substance Abuse; Psychiatry
GA CC7DF
UT WOS:000350527200012
PM 25599962
ER
PT J
AU DeCredico, MA
AF DeCredico, Mary A.
TI Transition to an Industrial South: Athens, Georgia, 1830-1870
SO JOURNAL OF AMERICAN HISTORY
LA English
DT Book Review
C1 [DeCredico, Mary A.] US Naval Acad, Annapolis, MD 21402 USA.
RP DeCredico, MA (reprint author), US Naval Acad, Annapolis, MD 21402 USA.
NR 1
TC 0
Z9 0
U1 0
U2 0
PU ORGANIZATION AMER HISTORIANS
PI BLOOMINGTON
PA 112 N BRYAN ST, BLOOMINGTON, IN 47408 USA
SN 0021-8723
EI 1945-2314
J9 J AM HIST
JI J. Am. Hist.
PD MAR
PY 2015
VL 101
IS 4
BP 1271
EP 1272
DI 10.1093/jahist/jav036
PG 3
WC History
SC History
GA CD3WN
UT WOS:000351014600063
ER
PT J
AU Abramowitz, G
Bishop, CH
AF Abramowitz, G.
Bishop, C. H.
TI Climate Model Dependence and the Ensemble Dependence Transformation of
CMIP Projections
SO JOURNAL OF CLIMATE
LA English
DT Article
ID MULTIMODEL ENSEMBLE; VARIABILITY; CIRCULATION; BIAS
AB Obtaining multiple estimates of future climate for a given emissions scenario is key to understanding the likelihood and uncertainty associated with climate-related impacts. This is typically done by collating model estimates from different research institutions internationally with the assumption that they constitute independent samples. Heuristically, however, several factors undermine this assumption: shared treatment of processes between models, shared observed data for evaluation, and even shared model code. Here, a "perfect model'' approach is used to test whether a previously proposed ensemble dependence transformation (EDT) can improve twenty-first-century Coupled Model Intercomparison Project (CMIP) projections. In these tests, where twenty-first-century model simulations are used as out-of-sample "observations,'' the mean-square difference between the transformed ensemble mean and "observations'' is on average 30% less than for the untransformed ensemble mean. In addition, the variance of the transformed ensemble matches the variance of the ensemble mean about the "observations'' much better than in the untransformed ensemble. Results show that the EDT has a significant effect on twenty-first-century projections of both surface air temperature and precipitation. It changes projected global average temperature increases by as much as 16% (0.2 degrees C for B1 scenario), regional average temperatures by as much as 2.6 degrees C (RCP8.5 scenario), and regional average annual rainfall by as much as 410 mm (RCP6.0 scenario). In some regions, however, the effect is minimal. It is also found that the EDT causes changes to temperature projections that differ in sign for different emissions scenarios. This may be as much a function of the makeup of the ensembles as the nature of the forcing conditions.
C1 [Abramowitz, G.] Univ New S Wales, ARC Ctr Excellence Climate Syst Sci, Sydney, NSW 2052, Australia.
[Abramowitz, G.] Univ New S Wales, Climate Change Res Ctr, Sydney, NSW 2052, Australia.
[Bishop, C. H.] Naval Res Lab, Monterey, CA USA.
RP Abramowitz, G (reprint author), Univ New S Wales, ARC Ctr Excellence Climate Syst Sci, Sydney, NSW 2052, Australia.
EM gabriel@unsw.edu.au
FU Australian Research Council Centre of Excellence for Climate System
Science [CE110001028]; U.S. Office of Naval Research Grant
[N0001413WX00008]
FX We acknowledge the support of the Australian Research Council Centre of
Excellence for Climate System Science (CE110001028). CHB gratefully
acknowledges support from the U.S. Office of Naval Research Grant
N0001413WX00008. The GPCP combined precipitation data were developed and
computed by the NASA Goddard Space Flight Center Laboratory for
Atmospheres as a contribution to the GEWEX Global Precipitation
Climatology Project. GPCP data were provided by the NOAA/OAR/ESRL/PSD,
Boulder, Colorado, from their website (http://www.esrl.noaa.gov/psd/).
All analysis and transformation code are available from the
corresponding author upon request.
NR 31
TC 4
Z9 4
U1 1
U2 3
PU AMER METEOROLOGICAL SOC
PI BOSTON
PA 45 BEACON ST, BOSTON, MA 02108-3693 USA
SN 0894-8755
EI 1520-0442
J9 J CLIMATE
JI J. Clim.
PD MAR
PY 2015
VL 28
IS 6
BP 2332
EP 2348
DI 10.1175/JCLI-D-14-00364.1
PG 17
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA CD3MV
UT WOS:000350983700014
ER
PT J
AU Auten, JD
Ross, EM
French, MA
Li, IZ
Robinson, L
Brown, N
King, KJ
Tanen, DA
AF Auten, Jonathan D.
Ross, Elliot M.
French, Michelle A.
Li, Ivy Z.
Robinson, Lovette
Brown, Nanette
King, Kerry J.
Tanen, David A.
TI LOW-FIDELITY HYBRID SEXUAL ASSAULT SIMULATION TRAINING'S EFFECT ON THE
COMFORT AND COMPETENCY OF RESIDENT PHYSICIANS
SO JOURNAL OF EMERGENCY MEDICINE
LA English
DT Article
DE sexual assault; domestic violence; rape; simulation; emergency medicine;
resident; graduate medical education
ID MEDICAL-EDUCATION; EMERGENCY-MEDICINE; PROGRAM; SKILLS; RESUSCITATION;
MANAGEMENT; CARE
AB Background: Alternative training methods are needed for resident physicians to ensure that care is not compromised should they practice in settings without well-established Sexual Assault Nurse Examiner (SANE) programs. Objective: The purpose of this study is to determine the effectiveness of a simulation-based sexual assault response course for resident physicians at an institution without an on-site SANE program. Methods: Educational intervention study of 12 emergency medicine residents using a low-fidelity hybrid simulation model. The study was comprised of eight male and four female physicians at a military medical center in San Diego, CA. Assessment occurred using three separate metrics. The first was a written knowledge test. The second was a simulated interview and evidentiary examination. These metrics were given 1 month before and 3 months after an 8-h training course. The final metric was Likert-scale questionnaires surveying pre-and post-course feelings of competency and comfort. Results: The emergency medicine residents showed a 13% improvement (95% confidence interval [CI] 7 - 20%) in written examination scores pre and post intervention. Post-course interview and examinations reflected a 44% improvement (95% CI 24 - 64%) in critical action completion. Pre-course comfort and competency questionnaires were a median of 2 (interquartile range [IQR] 1 - 3) on a Likert Scale. Post-course survey responses were a median of 4 (IQR 2 - 5). Conclusions: Low-fidelity hybrid simulation is a useful tool to train inexperienced physicians to perform evidentiary examinations and interviews without sacrificing the privacy and direct care of sexual assault victims. Published by Elsevier Inc.
C1 [Auten, Jonathan D.; Ross, Elliot M.; French, Michelle A.; King, Kerry J.; Tanen, David A.] Naval Med Ctr San Diego, Dept Emergency Med, San Diego, CA 92134 USA.
[Li, Ivy Z.] Naval Med Ctr San Diego, Dept Obstet & Gynecol, San Diego, CA 92134 USA.
[Robinson, Lovette] US Navy Bur Med & Surg, Deloitte Consulting, Washington, DC USA.
[Brown, Nanette] US Navy Bur Med & Surg, Off Womens Hlth, Washington, DC USA.
RP Auten, JD (reprint author), Naval Med Ctr San Diego, Dept Emergency Med, 34800 Bob Wilson Dr, San Diego, CA 92134 USA.
NR 26
TC 2
Z9 2
U1 1
U2 3
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 MAR
PY 2015
VL 48
IS 3
BP 344
EP 350
DI 10.1016/j.jemermed.2014.09.032
PG 7
WC Emergency Medicine
SC Emergency Medicine
GA CC7XH
UT WOS:000350581300021
PM 25435474
ER
PT J
AU Amarasinghe, PM
Abelev, A
Qadri, SB
Calantoni, J
AF Amarasinghe, Priyanthi M.
Abelev, Andrei
Qadri, Syed B.
Calantoni, Joseph
TI Micromechanical determination of the tensile strength of flocculated
artificial marine cohesive sediment
SO MECHANICS RESEARCH COMMUNICATIONS
LA English
DT Article
DE Icromanipulation; Na-montmorillonite; Flocs; Guar gum
ID VARIABLE FRACTAL DIMENSION; SOCIETY SOURCE CLAYS; FLOC SIZE
DISTRIBUTION; BASE-LINE; SETTLING VELOCITY; BEHAVIOR; CHANNEL; FORCE;
MODEL; SHEAR
AB Strength characteristics of the flocculated aggregates (flocs) of clay minerals in an aqueous marine environment are important in many modeling applications, such as penetration of heavy objects in the cohesive seafloor, hydrodynamic transport of coastal and seafloor sediments, dredging, and remote sensing among many. Measuring floc strength accurately has been a difficult task due to the fragile, amorphous, and transient nature of the flocs. Here, we describe a micromechanical technique that was used to measure the tensile strength of soft flocculated aggregates produced from simulated marine clay sediments. In this study, artificial flocs similar to the ones that are found on and near the seabed, were prepared using Na-montmorillonite, guar gum, and sea salt. Using the micromechanical technique the average tensile strength of the flocs was found to be 667 +/- 189 Pa. The range of tensile strength values is consistent with the nature of the flocs and the measurement technique. Published by Elsevier Ltd.
C1 [Amarasinghe, Priyanthi M.] CNR, Washington, DC 20418 USA.
[Abelev, Andrei] Naval Res Lab, Marine Geosci Div, Washington, DC 20375 USA.
[Qadri, Syed B.] Naval Res Lab, Div Mat Sci & Technol, Washington, DC 20375 USA.
[Calantoni, Joseph] Naval Res Lab, Marine Geosci Div, Stennis Space Ctr, MS USA.
RP Abelev, A (reprint author), Naval Res Lab, Marine Geosci Div, Washington, DC 20375 USA.
EM andrei.abelev@nrl.navy.mil
FU Office of Naval Research
FX This work was performed while P. M. Amarasinghe held a National Research
Council Research Associateship Award. This work was supported under base
funding to the Naval Research Laboratory from the Office of Naval
Research.
NR 32
TC 0
Z9 0
U1 1
U2 11
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0093-6413
J9 MECH RES COMMUN
JI Mech. Res. Commun.
PD MAR
PY 2015
VL 64
BP 42
EP 49
DI 10.1016/j.mechrescom.2015.01.002
PG 8
WC Mechanics
SC Mechanics
GA CD2QQ
UT WOS:000350924500007
ER
PT J
AU Martin-Horcajo, S
Wang, A
Bosca, A
Romero, MF
Tadjer, MJ
Koehler, AD
Anderson, TJ
Calle, F
AF Martin-Horcajo, S.
Wang, A.
Bosca, A.
Romero, M. F.
Tadjer, M. J.
Koehler, A. D.
Anderson, T. J.
Calle, F.
TI Trapping phenomena in AlGaN and InAlN barrier HEMTs with different
geometries
SO SEMICONDUCTOR SCIENCE AND TECHNOLOGY
LA English
DT Article
DE GaN-based HEMTs; gate length; gate-to-drain distance; pulsed
measurements; trapping effects; virtual gate; drain current transient
ID ELECTRON-MOBILITY TRANSISTORS; FIELD-EFFECT TRANSISTORS; SURFACE-STATES;
GAN; DEVICES; INALN/(IN)GAN; GANHEMTS; TRAPS
AB Trapping effects were evaluated by means of pulsed measurements under different quiescent biases for GaN/AlGaN/GaN and GaN/InAlN/GaN. It was found that devices with an AlGaN barrier underwent an increase in the on-resistance, and a drain current and transconductance reduction without measurable threshold voltage change, suggesting the location of the traps in the gate-drain access region. In contrast, devices with an InAlN barrier showed a transconductance and a decrease in drain associated with a significant positive shift of threshold voltage, indicating that the traps were likely located under the gate region; as well as an on-resistance degradation probably associated with the presence of surface traps in the gate-drain access region. Furthermore, measurements of drain current transients at different ambient temperatures revealed that the activation energy of electron traps was 0.43 eV and 0.38 eV for AlGaN and InAlN barrier devices, respectively. Experimental and simulation results demonstrated the influence of device geometry on the observed trapping effects, since devices with larger gate lengths and gate-to-drain distance values exhibited less noticeable charge trapping effects.
C1 [Martin-Horcajo, S.; Wang, A.; Bosca, A.; Romero, M. F.; Tadjer, M. J.; Calle, F.] Univ Politecn Madrid, ETSI Telecomunicac, Dept Ingn Elect, E-28040 Madrid, Spain.
[Martin-Horcajo, S.; Wang, A.; Bosca, A.; Romero, M. F.; Tadjer, M. J.; Calle, F.] Univ Politecn Madrid, ETSI Telecomunicac, Inst Sistemas Optoelect & Microtecnol, E-28040 Madrid, Spain.
[Tadjer, M. J.; Koehler, A. D.; Anderson, T. J.] Naval Res Lab, Washington, DC 20375 USA.
RP Martin-Horcajo, S (reprint author), Univ Politecn Madrid, ETSI Telecomunicac, Dept Ingn Elect, Av Complutense 30, E-28040 Madrid, Spain.
EM smartin@isom.upm.es
RI Romero, Fatima/F-7773-2016;
OI CALLE GOMEZ, FERNANDO/0000-0001-7869-6704
FU RUE project, from Ministerio de Ciencia e Innovacion of Spain
[CSD2009-0046]; CAVE project, from Ministerio de Ciencia e Innovacion of
Spain [TEC2012-38247]; Office of Naval Research; PICATA grant (UPM
Madrid); American Society for Engineering Education
FX This work was partially supported by RUE (CSD2009-0046) and CAVE
(TEC2012-38247) projects, from Ministerio de Ciencia e Innovacion of
Spain. The authors would like to thank Dr T Brazzini for discussions and
manuscript proof reading. Research at NRL was supported by the Office of
Naval Research. MJT acknowledges partial support by a PICATA grant (UPM
Madrid) and the American Society for Engineering Education.
NR 39
TC 3
Z9 3
U1 2
U2 23
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0268-1242
EI 1361-6641
J9 SEMICOND SCI TECH
JI Semicond. Sci. Technol.
PD MAR
PY 2015
VL 30
IS 3
AR 035015
DI 10.1088/0268-1242/30/3/035015
PG 10
WC Engineering, Electrical & Electronic; Materials Science,
Multidisciplinary; Physics, Condensed Matter
SC Engineering; Materials Science; Physics
GA CC8PU
UT WOS:000350631400016
ER
PT J
AU Wood, BE
Muller, HR
Witte, M
AF Wood, Brian E.
Mueller, Hans-Reinhard
Witte, Manfred
TI REVISITING ULYSSES OBSERVATIONS OF INTERSTELLAR HELIUM
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE ISM: atoms; Sun: heliosphere
ID IBEX-LO OBSERVATIONS; BOW SHOCK; NEUTRAL HELIUM; SOLAR-SYSTEM;
PARAMETERS; HELIOSPHERE; GAS; CLOUD; HYDROGEN; CYCLE
AB We report the results of a comprehensive reanalysis of Ulysses observations of interstellar He atoms flowing through the solar system, the goal being to reassess the interstellar He flow vector and to search for evidence of variability in this vector. We find no evidence that the He beam seen by Ulysses changes at all from 1994-2007. The direction of flow changes by no more than similar to 0 degrees.3 and the speed by no more than similar to 0.3 km s(-1). A global fit to all acceptable He beam maps from 1994-2007 yields the following He flow parameters: V-ISM = 26.08 +/- 0.21 km s(-1), lambda = 75.54 +/- 0 degrees.19, beta = -5.44 +/- 0 degrees.24, and T = 7260 +/- 270 K; where lambda and beta are the ecliptic longitude and latitude direction in J2000 coordinates. The flow vector is consistent with the original analysis of the Ulysses team, but our temperature is significantly higher. The higher temperature somewhat mitigates a discrepancy that exists in the He flow parameters measured by Ulysses and the Interstellar Boundary Explorer, but does not resolve it entirely. Using a novel technique to infer photoionization loss rates directly from Ulysses data, we estimate a density of n(He) = 0.0196 +/- 0.0033 cm(-3) in the interstellar medium.
C1 [Wood, Brian E.] Naval Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Mueller, Hans-Reinhard] Dept Phys & Astron, Dartmouth Coll, Hanover, NH 03755 USA.
[Witte, Manfred] Max Planck Inst Solar Syst Res, D-37191 Katlenburg Lindau, Germany.
RP Wood, BE (reprint author), Naval Res Lab, Div Space Sci, Washington, DC 20375 USA.
EM brian.wood@nrl.navy.mil
OI Mueller, Hans-Reinhard/0000-0001-7364-5377
FU NASA [NNH13AV19I]
FX We thank Dr. E. Mobius for useful discussion and suggestions. This work
has been supported by NASA award NNH13AV19I to the Naval Research
Laboratory.
NR 33
TC 24
Z9 24
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 MAR 1
PY 2015
VL 801
IS 1
AR 62
DI 10.1088/0004-637X/801/1/62
PG 15
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA CC6PR
UT WOS:000350488700062
ER
PT J
AU DeGreeff, L
Rogers, DA
Katilie, C
Johnson, K
Rose-Pehrsson, S
AF DeGreeff, Lauryn
Rogers, Duane A.
Katilie, Christopher
Johnson, Kevin
Rose-Pehrsson, Susan
TI Technical note: Headspace analysis of explosive compounds using a novel
sampling chamber
SO FORENSIC SCIENCE INTERNATIONAL
LA English
DT Article
DE Explosive analysis; Headspace; Sampling chamber
ID PRESSURES
AB The development of instruments and methods for explosive vapor detection is a continually evolving field of interest. A thorough understanding of the characteristic vapor signatures of explosive material is imperative for the development and testing of new and current detectors. In this research a headspace sampling chamber was designed to contain explosive materials for the controlled, reproducible sampling and characterization of vapors associated with these materials. In a detonation test, the chamber was shown to contain an explosion equivalent to three grams of trinitrotoluene (TNT) without damage to the chamber. The efficacy of the chamber in controlled headspace sampling was evaluated in laboratory tests with bulk explosive materials. Small quantities of TNT, triacetone triperoxide (TATP) and hexamethylene triperoxide diamine (HMTD) were separately placed in the sampling chamber, and the headspace of each material was analyzed by gas chromatography/mass spectrometry (GC/MS) with online cryogenic trapping to yield characteristic vapor signatures for each explosive compound. Chamber sampling conditions, temperature and sampling time, were varied to demonstrate suitability for precise headspace analysis. Published by Elsevier Ireland Ltd.
C1 [DeGreeff, Lauryn; Rogers, Duane A.; Johnson, Kevin; Rose-Pehrsson, Susan] Naval Res Lab, Washington, DC 20375 USA.
[Katilie, Christopher] Nova Res Inc, Alexandria, VA USA.
RP DeGreeff, L (reprint author), Naval Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM lauryn.degreeff@nrl.navy.mil
FU Department of Homeland Security Science and Technology
FX The authors would like to acknowledge the FBI Explosives Unit for
supplying explosive materials and conducting detonation tests. The
authors also acknowledge the Department of Homeland Security Science and
Technology Directorate for program guidance, management, and funding.
NR 6
TC 2
Z9 2
U1 3
U2 16
PU ELSEVIER IRELAND LTD
PI CLARE
PA ELSEVIER HOUSE, BROOKVALE PLAZA, EAST PARK SHANNON, CO, CLARE, 00000,
IRELAND
SN 0379-0738
EI 1872-6283
J9 FORENSIC SCI INT
JI Forensic Sci.Int.
PD MAR
PY 2015
VL 248
BP 55
EP 60
DI 10.1016/j.forsciint.2014.12.022
PG 6
WC Medicine, Legal
SC Legal Medicine
GA CB9PA
UT WOS:000349962800010
PM 25596555
ER
PT J
AU Siskind, DE
Mlynczak, MG
Marshall, T
Friedrich, M
Gumbel, J
AF Siskind, David E.
Mlynczak, Martin G.
Marshall, Tom
Friedrich, Martin
Gumbel, Joerg
TI Implications of odd oxygen observations by the TIMED/SABER instrument
for lower D region ionospheric modeling
SO JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS
LA English
DT Article
DE Mesosphere; Ionosphere; D region
ID ELECTRON-DENSITY PROFILES; LOWER THERMOSPHERE; ION CHEMISTRY;
NITRIC-OXIDE; MESOSPHERE; OZONE; TIME
AB We document the variability in atomic oxygen inferred by the Sounding of the Atmosphere with Broadband Emission Radiometry (SABER) instrument on the NASA/TIMED satellite in the lower mesosphere (50-80 km altitude) according to its diurnal, latitudinal, seasonal and solar cycle components. The dominant variation is diurnal and latitudinal. Below 75 km, seasonal and solar cycle effects are less than 5%. Accordingly, we have developed a simple climatology that depends upon local time and latitude and applied it to a model of the D region of the ionosphere. Between 60 and 70 km, atomic oxygen is important in governing the ratio of negative ions to electrons. Using the SABER O climatology along with a previously published climatology of nitric oxide based upon UARS/HALOE data, we compare our model results both to previous calculations and to a profile of electron density [e(-)] acquired by a rocket launched from Kwajalein Atoll. The model results are shown to be consistent with previously published calculations, but the comparison with the data reveals a dramatic discrepancy whereby the calculated [e(-)] is over an order of magnitude less than the observations below 65 km. The most plausible explanation involves changing the partition of negative charge between molecules such as O-2 which rapidly dissociate in sunlight versus heavier, more stable negative ions. Although observations of [e(-)] below 70 km are difficult and infrequent, more research should be invested to evaluate the pervasiveness and the seasonal, latitudinal and diurnal morphology of this model [e(-)] deficit. This may have practical implications as empirical models of the ionosphere predict a secondary maximum in HF radio absorption in the 70 km altitude region. Published by Elsevier Ltd.
C1 [Siskind, David E.] Naval Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Mlynczak, Martin G.] NASA, Langley Res Ctr, Hampton, VA 23665 USA.
[Marshall, Tom] GATS Inc, Hampton, VA USA.
[Friedrich, Martin] Graz Univ Technol, A-8010 Graz, Austria.
[Gumbel, Joerg] Stockholm Univ, MISU, S-10691 Stockholm, Sweden.
RP Siskind, DE (reprint author), Naval Res Lab, Div Space Sci, Washington, DC 20375 USA.
EM david.siskind@nrl.navy.mil
FU Chief of Naval Research; NASA/TIMED SABER project [NNG11PX00I]
FX This work was sponsored by the Chief of Naval Research and the
NASA/TIMED SABER project through Interagency Purchase Request
NNG11PX00I.
NR 29
TC 1
Z9 1
U1 1
U2 7
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 MAR
PY 2015
VL 124
BP 63
EP 70
DI 10.1016/j.jastp.2015.01.014
PG 8
WC Geochemistry & Geophysics; Meteorology & Atmospheric Sciences
SC Geochemistry & Geophysics; Meteorology & Atmospheric Sciences
GA CC7EF
UT WOS:000350529800008
ER
PT J
AU Choi, SR
Faucett, DC
Skelley, B
AF Choi, Sung R.
Faucett, D. Calvin
Skelley, Brenna
TI Slow Crack Growth of a Pyroceram Glass Ceramic Under Static Fatigue
Loading-Commonality of Slow Crack Growth in Advanced Ceramics
SO JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER-TRANSACTIONS OF THE
ASME
LA English
DT Article
DE slow crack growth (SCG); static fatigue; dynamic fatigue; Pyroceram
9606; glass-ceramic; life prediction; advanced ceramics; ceramic matrix
composites (CMCs)
ID BRITTLE MATERIALS; ELEVATED-TEMPERATURES; MATRIX COMPOSITES; STRENGTH;
VELOCITY; SHEAR
AB An extensive experimental work for Pyroceram (TM) 9606 glass-ceramic was conducted to determine static fatigue at ambient temperature in distilled water. This work was an extension and companion of the previous work conducted in dynamic fatigue. Four different applied stresses ranging from 120 to 170 MPa was incorporated with a total of 20-23 test specimens used at each of four applied stresses. The slow crack growth (SCG) parameters n and D were found to be n = 19 and D = 45 with a coefficient of correlation of r(coef) = 0.9653. The Weibull modulus of time to failure was in a range of m(sf) = 1.6-1.9 with an average of m(sf) = 1.7 +/- 0.2. A life prediction using the previously determined dynamic fatigue data was in excellent agreement with the static fatigue data. The life prediction approach was also applied to advanced monolithic ceramics and ceramic matrix composites (CMCs) based on their dynamic and static fatigue data determined at elevated temperatures. All of these results indicated that a SCG mechanism governed by a power-law crack growth formulation was operative, a commonality of SCG in these materials systems.
C1 [Choi, Sung R.; Faucett, D. Calvin; Skelley, Brenna] Naval Air Syst Command, Patuxent River, MD 20670 USA.
RP Choi, SR (reprint author), Naval Air Syst Command, Patuxent River, MD 20670 USA.
EM sung.choi1@navy.mil
FU Office of Naval Research
FX The static fatigue experiment was conducted by Brandon Choi and Ralph
Pawlik of the NASA Glenn Research Center (Cleveland, OH). This work was
supported in part via the Office of Naval Research (Dr. D. Shifler).
NR 21
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U1 1
U2 10
PU ASME
PI NEW YORK
PA TWO PARK AVE, NEW YORK, NY 10016-5990 USA
SN 0742-4795
EI 1528-8919
J9 J ENG GAS TURB POWER
JI J. Eng. Gas. Turbines Power-Trans. ASME
PD MAR
PY 2015
VL 137
IS 3
AR 032505
DI 10.1115/1.4028393
PG 7
WC Engineering, Mechanical
SC Engineering
GA CC1ZV
UT WOS:000350144900017
ER
PT J
AU Potter, H
AF Potter, Henry
TI Swell and the drag coefficient
SO OCEAN DYNAMICS
LA English
DT Article
DE Drag coefficient; Waves; Swell; Momentum flux
ID ATMOSPHERIC BOUNDARY-LAYER; SEA-SURFACE ROUGHNESS; WIND-GENERATED WAVES;
NEUTRAL CONDITIONS; MOMENTUM FLUX; SPECTRA; OCEAN; EXCHANGE; STRESS;
BUOY
AB Simultaneous measurements of waves and turbulent fluxes were collected from a moored surface buoy in the Philippine Sea. Waves were partitioned into their wind sea and swell components, and the ratio of swell to wind sea energy was used to assign a swell index. The 10-m neutral drag coefficient was calculated using the eddy correlation method. Four hundred hours of data were processed in 30 minute runs for wind speeds 8.5 to 16.5 m s(-1) when the peak wave direction was within 90A degrees of the wind direction and included observations during mixed seas, swell dominant, and wind sea dominant conditions. The data were analyzed to explore the influence of swell on the drag coefficient. It was found that when compared to periods of equal wind speed, the drag coefficient was reduced up to 37 % when swell energy was twice that of the wind sea energy. It is believed that this reduction was due to a decrease in the turbulent flux around the swell frequency, suggesting that the swell diminishes the surface aerodynamic roughness.
C1 Naval Res Lab, Washington, DC 20375 USA.
RP Potter, H (reprint author), Naval Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM henry.potter.ctr@nrl.navy.mil
OI Potter, Henry/0000-0003-0142-107X
FU Office of Naval Research [N0014-09-1-0392, DURIP N00014-09-0818];
National Science Foundation [OCE-0526442]; National Research Council
FX ITOP was funded by Office of Naval Research under grant N0014-09-1-0392
with additional support from National Science Foundation (OCE-0526442)
for the development of the EASI buoy, and Office of Naval Research
(DURIP N00014-09-0818) for funding construction of the second EASI buoy.
I appreciate input and guidance from colleagues at the University of
Miami that worked on the ITOP project, especially Will Drennan, Hans
Graber, and Tripp Collins. I am also grateful to the captains and crew
of the R/V Roger Revelle. Finally, I acknowledge the support of the
National Research Council for my Post-doctoral Research Associate
fellowship.
NR 42
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U1 1
U2 18
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 MAR
PY 2015
VL 65
IS 3
BP 375
EP 384
DI 10.1007/s10236-015-0811-4
PG 10
WC Oceanography
SC Oceanography
GA CC6NI
UT WOS:000350481400005
ER
PT J
AU Massie, AB
Chow, EKH
Wickliffe, CE
Luo, X
Gentry, SE
Mulligan, DC
Segev, DL
AF Massie, A. B.
Chow, E. K. H.
Wickliffe, C. E.
Luo, X.
Gentry, S. E.
Mulligan, D. C.
Segev, D. L.
TI Early Changes in Liver Distribution Following Implementation of Share 35
SO AMERICAN JOURNAL OF TRANSPLANTATION
LA English
DT Article
ID ALLOCATION; TRANSPLANTATION; MODEL; RISK; POLICY
AB In June 2013, a change to the liver waitlist priority algorithm was implemented. Under Share 35, regional candidates with MELD35 receive higher priority than local candidates with MELD<35. We compared liver distribution and mortality in the first 12 months of Share 35 to an equivalent time period before. Under Share 35, new listings with MELD35 increased slightly from 752 (9.2% of listings) to 820 (9.7%, p=0.3), but the proportion of deceased-donor liver transplants (DDLTs) allocated to recipients with MELD35 increased from 23.1% to 30.1% (p<0.001). The proportion of regional shares increased from 18.9% to 30.4% (p<0.001). Sharing of exports was less clustered among a handful of centers (Gini coefficient decreased from 0.49 to 0.34), but there was no evidence of change in CIT (p=0.8). Total adult DDLT volume increased from 4133 to 4369, and adjusted odds of discard decreased by 14% (p=0.03). Waitlist mortality decreased by 30% among patients with baseline MELD>30 (SHR=0.70, p<0.001) with no change for patients with lower baseline MELD (p=0.9). Posttransplant length-of-stay (p=0.2) and posttransplant mortality (p=0.9) remained unchanged. In the first 12 months, Share 35 was associated with more transplants, fewer discards, and lower waitlist mortality, but not at the expense of CIT or early posttransplant outcomes.
C1 [Massie, A. B.; Chow, E. K. H.; Wickliffe, C. E.; Luo, X.; Segev, D. L.] Johns Hopkins Univ, Sch Med, Dept Surg, Baltimore, MD 21205 USA.
[Massie, A. B.; Segev, D. L.] Johns Hopkins Sch Publ Hlth, Dept Epidemiol, Baltimore, MD USA.
[Gentry, S. E.] US Naval Acad, Dept Math, Annapolis, MD 21402 USA.
[Gentry, S. E.; Segev, D. L.] Minneapolis Med Res Fdn Inc, Sci Registry Transplant Recipients, Minneapolis, MN USA.
[Mulligan, D. C.] Yale Univ, Sch Med, Dept Surg, New Haven, CT 06510 USA.
RP Segev, DL (reprint author), Johns Hopkins Univ, Sch Med, Dept Surg, Baltimore, MD 21205 USA.
EM dorry@jhmi.edu
OI Luo, Xun/0000-0003-0244-9832
FU National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
[K24DK101828]; Minneapolis Medical Research Foundation (US Department of
Health and Human Services, Health Resources and Services Administration,
Healthcare Systems Bureau, Division of Transplantation)
[HHSH250201000018C]; US Government
FX We would like to thank Dr. Kim Olthoff, Chair of the OPTN Liver and
Intestinal Organ Transplantation Committee when Share 35 was
implemented, for her advice and assistance with this study. Dr. Segev is
supported by grant number K24DK101828 from the National Institute of
Diabetes and Digestive and Kidney Diseases (NIDDK). This work was
conducted under the support of the Minneapolis Medical Research
Foundation, contractor for the Scientific Registry of Transplant
Recipients, as a deliverable under contract no. HHSH250201000018C (US
Department of Health and Human Services, Health Resources and Services
Administration, Healthcare Systems Bureau, Division of Transplantation).
As a US Government-sponsored work, there are no restrictions on its use.
The views expressed herein are those of the authors and not necessarily
those of the US Government.
NR 19
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U1 0
U2 1
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1600-6135
EI 1600-6143
J9 AM J TRANSPLANT
JI Am. J. Transplant.
PD MAR
PY 2015
VL 15
IS 3
BP 659
EP 667
DI 10.1111/ajt.13099
PG 9
WC Surgery; Transplantation
SC Surgery; Transplantation
GA CB9UD
UT WOS:000349977700014
PM 25693474
ER
PT J
AU Geum, YH
Kim, YI
Neta, B
AF Geum, Young Hee
Kim, Young Ik
Neta, Beny
TI On developing a higher-order family of double-Newton methods with a
bivariate weighting function
SO APPLIED MATHEMATICS AND COMPUTATION
LA English
DT Article
DE Sixth-order convergence; Extraneous fixed point; Asymptotic error
constant; Efficiency index; Double-Newton method; Basin of attraction
ID SOLVING NONLINEAR EQUATIONS; EXTRANEOUS FIXED-POINTS; ITERATIVE METHODS;
6TH-ORDER CONVERGENCE; 4TH-ORDER FAMILY; MULTIPLE ROOTS; ATTRACTION;
BASINS
AB A high-order family of two-point methods costing two derivatives and two functions are developed by introducing a two-variable weighting function in the second step of the classical double-Newton method. Their theoretical and computational properties are fully investigated along with a main theorem describing the order of convergence and the asymptotic error constant as well as proper choices of special cases. A variety of concrete numerical examples and relevant results are extensively treated to verify the underlying theoretical development. In addition, this paper investigates the dynamics of rational iterative maps associated with the proposed method and an existing method based on illustrated description of basins of attraction for various polynomials. (C) 2015 Elsevier Inc. All rights reserved.
C1 [Geum, Young Hee; Kim, Young Ik] Dankook Univ, Dept Appl Math, Cheonan 330714, South Korea.
[Neta, Beny] Naval Postgrad Sch, Dept Appl Math, Monterey, CA 93943 USA.
RP Kim, YI (reprint author), Dankook Univ, Dept Appl Math, Cheonan 330714, South Korea.
EM conpana@empas.com; yikbell@yahoo.co.kr; bneta@nps.edu
NR 32
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Z9 9
U1 1
U2 5
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 MAR 1
PY 2015
VL 254
BP 277
EP 290
DI 10.1016/j.amc.2014.12.130
PG 14
WC Mathematics, Applied
SC Mathematics
GA CB8BC
UT WOS:000349852200027
ER
PT J
AU Hodgson, E
Bachmann, ER
Vincent, D
Zmuda, M
Waller, D
Calusdian, J
AF Hodgson, Eric
Bachmann, Eric R.
Vincent, David
Zmuda, Michael
Waller, David
Calusdian, James
TI WeaVR: a self-contained and wearable immersive virtual environment
simulation system
SO BEHAVIOR RESEARCH METHODS
LA English
DT Article
DE Immersive virtual reality; Navigation; Motion tracking; Redirected
walking; Spatial cognition; Wearable computing
ID NAVIGATION; REALITY
AB We describe WeaVR, a computer simulation system that takes virtual reality technology beyond specialized laboratories and research sites and makes it available in any open space, such as a gymnasium or a public park. Novel hardware and software systems enable HMD-based immersive virtual reality simulations to be conducted in any arbitrary location, with no external infrastructure and little-to-no setup or site preparation. The ability of the WeaVR system to provide realistic motion-tracked navigation for users, to improve the study of large-scale navigation, and to generate usable behavioral data is shown in three demonstrations. First, participants navigated through a full-scale virtual grocery store while physically situated in an open grass field. Trajectory data are presented for both normal tracking and for tracking during the use of redirected walking that constrained users to a predefined area. Second, users followed a straight path within a virtual world for distances of up to 2 km while walking naturally and being redirected to stay within the field, demonstrating the ability of the system to study large-scale navigation by simulating virtual worlds that are potentially unlimited in extent. Finally, the portability and pedagogical implications of this system were demonstrated by taking it to a regional high school for live use by a computer science class on their own school campus.
C1 [Hodgson, Eric; Waller, David] Miami Univ, Dept Psychol, Oxford, OH 45056 USA.
[Hodgson, Eric] Miami Univ, Armstrong Inst Interact Media Studies, Oxford, OH 45056 USA.
[Bachmann, Eric R.; Vincent, David; Zmuda, Michael] Miami Univ, Dept Comp Sci & Software Engn, Oxford, OH 45056 USA.
[Calusdian, James] Naval Postgrad Sch, Dept Elect & Comp Engn, Monterey, CA USA.
RP Hodgson, E (reprint author), Miami Univ, Dept Psychol, Oxford, OH 45056 USA.
EM eric.hodgson@miamiOH.edu
FU National Science Foundation (NSF); Army Research Office (ARO)
FX This work was supported in part by the National Science Foundation (NSF)
and the Army Research Office (ARO). The authors thank Proctor & Gamble
for supplying the virtual supermarket used in this study. PNI Sensor
Corporation donated two Spacepoint inertial sensors that assisted in
construction of the second-generation WeaVR system and is sponsoring
follow-up research by one of the authors.
NR 33
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Z9 5
U1 3
U2 12
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1554-351X
EI 1554-3528
J9 BEHAV RES METHODS
JI Behav. Res. Methods
PD MAR
PY 2015
VL 47
IS 1
BP 296
EP 307
DI 10.3758/s13428-014-0463-1
PG 12
WC Psychology, Mathematical; Psychology, Experimental
SC Psychology
GA CB9US
UT WOS:000349979400023
PM 24737097
ER
PT J
AU Heckman, CR
Hsieh, MA
Schwartz, IB
AF Heckman, Christoffer R.
Hsieh, M. Ani
Schwartz, Ira B.
TI Going With the Flow: Enhancing Stochastic Switching Rates in Multigyre
Systems
SO JOURNAL OF DYNAMIC SYSTEMS MEASUREMENT AND CONTROL-TRANSACTIONS OF THE
ASME
LA English
DT Article
ID ALMOST-INVARIANT SETS; LAGRANGIAN COHERENT STRUCTURES; LARGE
FLUCTUATIONS; DYNAMICAL-SYSTEMS; OPTIMAL PATHS; TRANSPORT; NOISE;
DRIVEN; OCEAN; CHAOS
AB A control strategy is employed that modifies the stochastic escape times from one basin of attraction to another in a model of a double-gyre flow. The system studied captures the behavior of a large class of fluid flows that circulate and have multiple almost invariant sets. In the presence of noise, a particle in one gyre may randomly switch to an adjacent gyre due to a rare large fluctuation. We show that large fluctuation theory may be applied for controlling autonomous agents in a stochastic environment, in fact leveraging the stochasticity to the advantage of switching between regions of interest and concluding that patterns may be broken or held over time as the result of noise. We demonstrate that a controller can effectively manipulate the probability of a large fluctuation; this demonstrates the potential of optimal control strategies that work in combination with the endemic stochastic environment. To demonstrate this, stochastic simulations and numerical continuation are employed to tie together experimental findings with predictions.
C1 [Heckman, Christoffer R.; Schwartz, Ira B.] US Naval Res Lab, Div Plasma Phys, Nonlinear Dynam Syst Sect, Washington, DC 20375 USA.
[Hsieh, M. Ani] Drexel Univ, Scalable Autonomous Syst Lab, Philadelphia, PA 19104 USA.
RP Heckman, CR (reprint author), US Naval Res Lab, Div Plasma Phys, Nonlinear Dynam Syst Sect, Code 6792, Washington, DC 20375 USA.
EM christoffer.heckman.ctr@nrl.navy.mil; mhsieh1@drexel.edu;
ira.schwartz@nrl.navy.mil
FU National Research Council Research Associateship Award at the U.S. Naval
Research Laboratory; Office of Naval Research [F1ATA01098G001]; Naval
Research Base Program [N0001412WX30002]; NSF [IIS-1253917]
FX This research was performed while C.R.H. held a National Research
Council Research Associateship Award at the U.S. Naval Research
Laboratory. This research is funded by the Office of Naval Research
Contract No. F1ATA01098G001, Naval Research Base Program Contract No.
N0001412WX30002, and NSF Grant No. IIS-1253917.
NR 38
TC 0
Z9 0
U1 1
U2 1
PU ASME
PI NEW YORK
PA TWO PARK AVE, NEW YORK, NY 10016-5990 USA
SN 0022-0434
EI 1528-9028
J9 J DYN SYST-T ASME
JI J. Dyn. Syst. Meas. Control-Trans. ASME
PD MAR
PY 2015
VL 137
IS 3
SI SI
AR 031006
DI 10.1115/1.4027828
PG 6
WC Automation & Control Systems; Instruments & Instrumentation
SC Automation & Control Systems; Instruments & Instrumentation
GA CB6RO
UT WOS:000349754500008
ER
PT J
AU Jha, DK
Li, Y
Wettergren, TA
Ray, A
AF Jha, Devesh K.
Li, Yue
Wettergren, Thomas A.
Ray, Asok
TI Robot Path Planning in Uncertain Environments: A
Language-Measure-Theoretic Approach
SO JOURNAL OF DYNAMIC SYSTEMS MEASUREMENT AND CONTROL-TRANSACTIONS OF THE
ASME
LA English
DT Article
DE path planning; language measure; probabilistic finite state automata
ID AUTONOMOUS UNDERWATER VEHICLES; REGULAR LANGUAGES; SYSTEMS
AB This paper addresses the problem of goal-directed robot path planning in the presence of uncertainties that are induced by bounded environmental disturbances and actuation errors. The offline infinite-horizon optimal plan is locally updated by online finite-horizon adaptive replanning upon observation of unexpected events (e.g., detection of unanticipated obstacles). The underlying theory is developed as an extension of a grid-based path planning algorithm, called nu*, which was formulated in the framework of probabilistic finite state automata (PFSA) and language measure from a control-theoretic perspective. The proposed concept has been validated on a simulation test bed that is constructed upon a model of typical autonomous underwater vehicles (AUVs) in the presence of uncertainties.
C1 [Jha, Devesh K.; Li, Yue; Wettergren, Thomas A.; Ray, Asok] Penn State Univ, Mech & Nucl Engn Dept, University Pk, PA 16802 USA.
[Wettergren, Thomas A.] Naval Undersea Warfare Ctr, Newport, RI 02841 USA.
RP Jha, DK (reprint author), Penn State Univ, Mech & Nucl Engn Dept, University Pk, PA 16802 USA.
EM dkj5042@psu.edu; yol5214@psu.edu; t.a.wettergren@ieee.org; axr2@psu.edu
OI Wettergren, Thomas/0000-0002-6623-8412
FU U.S. Army Research Laboratory; U.S. Army Research Office
[W911NF-13-11-0461]; U.S. Air Force Office of Scientific Research
(AFOSR) [FA9550-12-1-0270]
FX This work was supported in part by the U.S. Army Research Laboratory and
the U.S. Army Research Office under Grant No. W911NF-13-11-0461 and by
the U.S. Air Force Office of Scientific Research (AFOSR) under Grant No.
FA9550-12-1-0270. Any opinions, findings, and conclusions or
recommendations expressed in this publication are those of the authors
and do not necessarily reflect the views of the sponsoring agencies.
NR 18
TC 1
Z9 1
U1 1
U2 13
PU ASME
PI NEW YORK
PA TWO PARK AVE, NEW YORK, NY 10016-5990 USA
SN 0022-0434
EI 1528-9028
J9 J DYN SYST-T ASME
JI J. Dyn. Syst. Meas. Control-Trans. ASME
PD MAR
PY 2015
VL 137
IS 3
SI SI
AR 034501
DI 10.1115/1.4027876
PG 7
WC Automation & Control Systems; Instruments & Instrumentation
SC Automation & Control Systems; Instruments & Instrumentation
GA CB6RO
UT WOS:000349754500015
ER
PT J
AU Manna, U
Mohan, MT
Sritharan, SS
AF Manna, Utpal
Mohan, Manil T.
Sritharan, Sivaguru S.
TI Stochastic Navier-Stokes Equations in Unbounded Channel Domains
SO JOURNAL OF MATHEMATICAL FLUID MECHANICS
LA English
DT Article
DE Stochastic Navier-Stokes equations; viscous flow in channels; path-wise
strong solutions
ID PARTIAL-DIFFERENTIAL EQUATIONS; VISCOUS-FLUID; EXISTENCE; NOISE;
BOUNDARY; DRIVEN; SOLVABILITY; MARTINGALE; REGULARITY; PROOF
AB In this paper we prove the existence and uniqueness of path-wise strong solution to stochastic viscous flow in unbounded channels with multiple outlets using local monotonicity arguments. We devise a construction for solvability using a stochastic basic vector field.
C1 [Manna, Utpal; Mohan, Manil T.] IISER Thiruvananthapuram, Sch Math, Thiruvananthapuram 695016, Kerala, India.
[Sritharan, Sivaguru S.] US Navy, Postgrad Sch, Monterey, CA USA.
RP Sritharan, SS (reprint author), IISER Thiruvananthapuram, Sch Math, Thiruvananthapuram 695016, Kerala, India.
EM manna.utpal@iisertvm.ac.in; manil@iisertvm.ac.in; sssritha@nps.edu
OI Sritharan, Sivaguru/0000-0003-2845-332X
FU Council of Scientific and Industrial Research (CSIR); National Board of
Higher Mathematics (NBHM); U. S. Army Research Office
FX Manil T. Mohan would like to thank Council of Scientific and Industrial
Research (CSIR) for a Senior Research Fellowship. Utpal Manna's work has
been supported by National Board of Higher Mathematics (NBHM). S. S.
Sritharan's work has been funded by U. S. Army Research Office,
Probability and Statistics program. The authors would also like to thank
the reviewer for his critical and valuable comments. Utpal Manna and
Manil T. Mohan would like to thank Indian Institute of Science Education
and Research (IISER)-Thiruvananthapuram for providing stimulating
scientific environment and resources.
NR 69
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Z9 0
U1 0
U2 2
PU SPRINGER BASEL AG
PI BASEL
PA PICASSOPLATZ 4, BASEL, 4052, SWITZERLAND
SN 1422-6928
EI 1422-6952
J9 J MATH FLUID MECH
JI J. Math. Fluid Mech.
PD MAR
PY 2015
VL 17
IS 1
BP 47
EP 86
DI 10.1007/s00021-014-0189-y
PG 40
WC Mathematics, Interdisciplinary Applications; Mechanics; Physics, Fluids
& Plasmas
SC Mathematics; Mechanics; Physics
GA CB8OF
UT WOS:000349888900004
ER
PT J
AU Gentry, SE
Chow, EKH
Massie, A
Luo, X
Zaun, D
Snyder, JJ
Israni, AK
Kasiske, B
Segev, DL
AF Gentry, Sommer E.
Chow, Eric K. H.
Massie, Allan
Luo, Xun
Zaun, David
Snyder, Jon J.
Israni, Ajay K.
Kasiske, Bert
Segev, Dorry L.
TI Liver Sharing and Organ Procurement Organization Performance
SO LIVER TRANSPLANTATION
LA English
DT Article
ID UNITED-STATES; DONATION; TRANSPLANTATION
AB Whether the liver allocation system shifts organs from better performing organ procurement organizations (OPOs) to poorer performing OPOs has been debated for many years. Models of OPO performance from the Scientific Registry of Transplant Recipients make it possible to study this question in a data-driven manner. We investigated whether each OPO's net liver import was correlated with 2 performance metrics [observed to expected (O:E) liver yield and liver donor conversion ratio] as well as 2 alternative explanations [eligible deaths and incident listings above a Model for End-Stage Liver Disease (MELD) score of 15]. We found no evidence to support the hypothesis that the allocation system transfers livers from better performing OPOs to centers with poorer performing OPOs. Also, having fewer eligible deaths was not associated with a net import. However, having more incident listings was strongly correlated with the net import, both before and after Share 35. Most importantly, the magnitude of the variation in OPO performance was much lower than the variation in demand: although the poorest performing OPOs differed from the best ones by less than 2-fold in the O:E liver yield, incident listings above a MELD score of 15 varied nearly 14-fold. Although it is imperative that all OPOs achieve the best possible results, the flow of livers is not explained by OPO performance metrics, and instead, it appears to be strongly related to differences in demand. Liver Transpl 21:293-299, 2015. (c) 2015 AASLD.
C1 [Gentry, Sommer E.; Chow, Eric K. H.; Massie, Allan; Luo, Xun; Segev, Dorry L.] Johns Hopkins Univ, Sch Med, Dept Surg, Baltimore, MD 21205 USA.
[Gentry, Sommer E.] US Naval Acad, Dept Math, Baltimore, MD USA.
[Massie, Allan; Segev, Dorry L.] Johns Hopkins Univ, Sch Publ Hlth, Dept Epidemiol, Baltimore, MD 21205 USA.
[Zaun, David; Snyder, Jon J.; Israni, Ajay K.; Kasiske, Bert] Minneapolis Med Res Fdn Inc, Sci Registry Transplant Recipients, Minneapolis, MN USA.
[Snyder, Jon J.; Israni, Ajay K.] Univ Minnesota, Hennepin Cty Med Ctr, Dept Epidemiol & Community Hlth, Minneapolis, MN 55415 USA.
[Israni, Ajay K.; Kasiske, Bert] Univ Minnesota, Hennepin Cty Med Ctr, Dept Med, Minneapolis, MN 55415 USA.
RP Gentry, SE (reprint author), US Naval Acad, Dept Math, 572-C Holloway Rd,Mail Stop 9E, Annapolis, MD 21402 USA.
EM gentry@usna.edu
OI Luo, Xun/0000-0003-0244-9832
FU Division of Transplantation of the Healthcare Systems Bureau (Health
Resources and Services Administration, US Department of Health and Human
Services) [HHSH250201000018C]; National Institute of Diabetes Digestive
and Kidney Diseases [RC1 1RC1DK086450-01]; National Institute of
Diabetes and Digestive and Kidney Diseases [K24DK101828]
FX This work was supported by contract HHSH250201000018C from the Division
of Transplantation of the Healthcare Systems Bureau (Health Resources
and Services Administration, US Department of Health and Human
Services). The work was also supported by an American Recovery and
Reinvestment Act grant from the National Institute of Diabetes Digestive
and Kidney Diseases (RC1 1RC1DK086450-01). Dorry L. Segev is supported
by grant K24DK101828 from the National Institute of Diabetes and
Digestive and Kidney Diseases. The interpretation and reporting of these
data are the responsibility of the authors and in no way should be seen
as an official policy of or interpretation by the Scientific Registry of
Transplant Recipients or the US Government.
NR 9
TC 6
Z9 6
U1 0
U2 1
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1527-6465
EI 1527-6473
J9 LIVER TRANSPLANT
JI Liver Transplant.
PD MAR
PY 2015
VL 21
IS 3
BP 293
EP 299
DI 10.1002/lt.24074
PG 7
WC Gastroenterology & Hepatology; Surgery; Transplantation
SC Gastroenterology & Hepatology; Surgery; Transplantation
GA CC2BM
UT WOS:000350149600005
PM 25556648
ER
PT J
AU Breiner, MM
Chavez, DE
Myers, TW
Gilardi, RD
AF Breiner, Megan M.
Chavez, David E.
Myers, Thomas W.
Gilardi, Richard D.
TI 1,2,4,5-Tetrazinyl-Substituted Amino-1,2,4,5-Tetrazines
SO SYNLETT
LA English
DT Article
DE tetrazines; heterocycle; cyclic voltammetry; UV/Vis; nucleophilic
addition
ID S-TETRAZINES; CELLS
AB The synthesis of 1,2,4,5-tetrazinylamino-1,2,4,5-tetrazines is reported, including the preparation of compounds containing three tetrazine heterocycles in a single compound. These materials were compared to phenylamine derivatives, also synthesized in this study. The UV/Vis and cyclic voltammetry data were collected and are reported, along with the crystal structure of one of the tritetrazine compounds.
C1 [Breiner, Megan M.; Chavez, David E.; Myers, Thomas W.] Los Alamos Natl Lab, Weap Expt Div, Los Alamos, NM 87545 USA.
[Gilardi, Richard D.] Naval Res Lab, Struct Matter Lab, Washington, DC 20375 USA.
RP Chavez, DE (reprint author), Los Alamos Natl Lab, Weap Expt Div, POB 1663, Los Alamos, NM 87545 USA.
EM dechavez@lanl.gov
FU Joint Munitions Program; U.S. Department of Energy [DE-AC52-06NA25396];
Office of Naval Research [N00014-11-AF-0-0002]
FX The authors would like to thank the Joint Munitions Program for the
funding to perform this work. We would like to thank Virginia Manner
(UV-Vis) and Stephanie Hagelberg (elemental analysis) for
characterization. Los Alamos National Laboratory is operated by Los
Alamos National Security (LANS, LLC) under contract No.
DE-AC52-06NA25396 for the U.S. Department of Energy. The authors also
thank the Office of Naval Research (Award No. N00014-11-AF-0-0002).
NR 16
TC 0
Z9 0
U1 3
U2 14
PU GEORG THIEME VERLAG KG
PI STUTTGART
PA RUDIGERSTR 14, D-70469 STUTTGART, GERMANY
SN 0936-5214
EI 1437-2096
J9 SYNLETT
JI Synlett
PD MAR
PY 2015
VL 26
IS 4
BP 557
EP 560
DI 10.1055/s-0034-1379615
PG 4
WC Chemistry, Organic
SC Chemistry
GA CC0WI
UT WOS:000350059200023
ER
PT J
AU Rimoin, AW
Hoff, NA
Djoko, CF
Kisalu, NK
Kashamuka, M
Tamoufe, U
LeBreton, M
Kayembe, PK
Muyembe, JJ
Kitchen, CR
Saylors, K
Fair, J
Doshi, R
Papworth, E
Mpoudi-Ngole, E
Grillo, MP
Tshala, F
Peeters, M
Wolfe, ND
AF Rimoin, A. W.
Hoff, N. A.
Djoko, C. F.
Kisalu, N. K.
Kashamuka, M.
Tamoufe, U.
LeBreton, M.
Kayembe, P. K.
Muyembe, J. J.
Kitchen, C. R.
Saylors, K.
Fair, J.
Doshi, R.
Papworth, E.
Mpoudi-Ngole, E.
Grillo, M. P.
Tshala, F.
Peeters, M.
Wolfe, N. D.
TI HIV infection and risk factors among the armed forces personnel
stationed in Kinshasa, Democratic Republic of Congo
SO INTERNATIONAL JOURNAL OF STD & AIDS
LA English
DT Article
DE Africa; syphilis (Treponema pallidum); HIV (Human immunodeficiency
virus); AIDS; prevalence; sexual behaviour; epidemiology
ID IMMUNODEFICIENCY-VIRUS-INFECTION; POPULATIONS; DIVERSITY; HIV/AIDS;
AFRICA; PREVALENCE; PREVENTION; KNOWLEDGE; COUNTRIES; SERVICES
AB Despite recent declines in HIV incidence, sub-Saharan Africa remains the most heavily affected region in the global HIV/AIDS epidemic. Estimates of HIV prevalence in African military personnel are scarce and inconsistent. We conducted a serosurvey between June and September 2007 among 4043 Armed Forces personnel of the Democratic Republic of Congo (FARDC) stationed in Kinshasa, Democratic Republic of Congo (DRC) to determine the prevalence of HIV and syphilis infections and describe associated risk behaviours. Participants provided blood for HIV and syphilis testing and responded to a demographic and risk factor questionnaire. The prevalence of HIV was 3.8% and the prevalence of syphilis was 11.9%. Women were more likely than men to be HIV positive, (7.5% vs. 3.6% respectively, aOR: 1.66, 95% C. I: 1.21-2.28, p<0.05). Factors significantly associated with HIV infection included gender and self-reported genital ulcers in the 12 months before date of enrollment. The prevalence of HIV in the military appears to be higher than the general population in DRC (3.8% vs. 1.3%, respectively), with women at increased risk of infection.
C1 [Rimoin, A. W.; Hoff, N. A.; Doshi, R.] Univ Calif Los Angeles, Los Angeles Fielding Sch Publ Hlth, Dept Epidemiol, Los Angeles, CA 90005 USA.
[Djoko, C. F.; Tamoufe, U.; LeBreton, M.; Saylors, K.; Fair, J.; Wolfe, N. D.] Metabiota, San Francisco, CA USA.
[Djoko, C. F.; Tamoufe, U.; LeBreton, M.; Saylors, K.; Fair, J.; Wolfe, N. D.] Metabiota, Yaounde, Cameroon.
[Kisalu, N. K.] NIAID, Vaccine Res Ctr, NIH, Bethesda, MD 20892 USA.
[Kashamuka, M.; Kayembe, P. K.] Univ Kinshasa, Kinshasa Sch Publ Hlth, Kinshasa, DEM REP CONGO.
[Muyembe, J. J.] Natl Inst Biomed Res, Kinshasa, DEM REP CONGO.
[Kitchen, C. R.] Univ Calif Los Angeles, Fielding Sch Publ Hlth, Dept Biostat, Los Angeles, CA 90005 USA.
[Papworth, E.] Johns Hopkins Univ, Bloomberg Sch Publ Hlth, Baltimore, MD USA.
[Mpoudi-Ngole, E.] CREMER IMPM IRD, Virol Lab, Yaounde, Cameroon.
[Grillo, M. P.] Naval Hlth Res Ctr, Dept Def HIV AIDS Prevent Program DHAPP, San Diego, CA USA.
[Tshala, F.] Minist Def, Mil Hlth Serv, Kinshasa, DEM REP CONGO.
[Peeters, M.] IRD, Lab Retrovirus, UMR 145, Montpellier, France.
[Peeters, M.] Univ Montpellier I, Montpellier, France.
[Wolfe, N. D.] Stanford Univ, Program Human Biol, Stanford, CA 94305 USA.
RP Rimoin, AW (reprint author), Univ Calif Los Angeles, Sch Publ Hlth, Dept Epidemiol, CHS 41-245, Los Angeles, CA 90005 USA.
EM arimoin@ucla.edu
OI Kayembe Kalambayi, Patrick/0000-0002-5693-2144
FU Department of Defense HIV/AIDS Prevention Program (DHAPP), Naval Health
Research Center, San Diego, CA; National Institutes of Health (NIH)
Fogarty International Center (FIC) AIDS International Training and
Research Program [2 D 43 TW000010-16/17]; NIH [DP1-OD000370]; DoD
HIV/AIDS Prevention Program (DHAPP); Henry M. Jackson Foundation for the
Advancement of Military Medicine, google.org; Skoll Foundation; Global
Emerging Infections Surveillance and Response System (GEIS) - a Division
of the United States Armed Forces Health Surveillance Center
FX The authors disclosed receipt of the following financial support for the
research, authorship, and/or publication of this article: This work was
funded by the Department of Defense HIV/AIDS Prevention Program (DHAPP),
Naval Health Research Center, San Diego, CA. CFD was supported, in part,
by funds from the National Institutes of Health (NIH) Fogarty
International Center (FIC) AIDS International Training and Research
Program (2 D 43 TW000010-16/17). NDW is supported by the NIH Director's
Pioneer Award (DP1-OD000370). GVF is supported by the DoD HIV/AIDS
Prevention Program (DHAPP), the Henry M. Jackson Foundation for the
Advancement of Military Medicine, google.org, The Skoll Foundation, and
the Global Emerging Infections Surveillance and Response System (GEIS) -
a Division of the United States Armed Forces Health Surveillance Center.
NR 37
TC 2
Z9 2
U1 2
U2 7
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 MAR
PY 2015
VL 26
IS 3
BP 187
EP 195
DI 10.1177/0956462414533672
PG 9
WC Immunology; Infectious Diseases
SC Immunology; Infectious Diseases
GA CB3WY
UT WOS:000349561300007
PM 24828556
ER
PT J
AU Colaninno, RC
Howard, RA
AF Colaninno, R. C.
Howard, R. A.
TI Update of the Photometric Calibration of the LASCO-C2 Coronagraph Using
Stars
SO SOLAR PHYSICS
LA English
DT Article
DE Instrumentation; Photometric calibration; Solar corona
ID MASS EJECTIONS
AB We present an update to the photometric calibration of the LASCO-C2 coronagraph onboard the SOHO spacecraft. We obtained the new calibration using data from the beginning of the mission in 1996 until 2013. We re-examined the LASCO-C2 photometric calibration by comparing the past three calibrations and the present calibration with the goal of validating an in-flight calibration. We find a photometric calibration factor (PCF) that is very similar to the factor recently published in Gardes, Lamy, and Llebaria (Solar Phys. 283, 667, 2013), which calculated a calibration between 1996 and 2009. The average of our PCF between 1999 and 2009 is the same, within our margin of error, as the average given by Gardes, Lamy, and Llebaria (Solar Phys. 283, 667, 2013) during the same time period. However, we find a different evolution of the calibration over the lifetime of the LASCO-C2 instrument compared with past results. We find that the sensitivity of the instrument is decreasing by a constant 0.20 [+/- 0.03] % per year. We also find no significant difference in the signal degradation before and after the SOHO interruption. We discuss the effects of this new PCF on the calibrated data set and the potential impact on scientific results derived from the previous calibration.
C1 [Colaninno, R. C.; Howard, R. A.] Naval Res Lab, Div Space Sci, Washington, DC 20375 USA.
RP Colaninno, RC (reprint author), Naval Res Lab, Div Space Sci, Washington, DC 20375 USA.
EM robin.colaninno@nrl.navy.mil
FU NASA; Office of Naval Research
FX The authors would like to thank Nathan Rich and Jeff Morrill for their
contributions to this work. This work was supported by NASA and the
Office of Naval Research. The SOHO/LASCO data used here are produced by
a consortium of the Naval Research Laboratory (USA), Max-Plank-Institut
fur Sonnensystemforschung (Germany), Laboratorie d'Astronomie Spatiale
(France), and University of Birmingham (UK). SOHO is a project of
international cooperation between ESA and NASA.
NR 12
TC 3
Z9 3
U1 0
U2 0
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 MAR
PY 2015
VL 290
IS 3
BP 997
EP 1009
DI 10.1007/s11207-014-0635-2
PG 13
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA CB8TF
UT WOS:000349903300021
ER
PT J
AU Zhuang, X
Sing, MLC
Dolabdjian, C
Wang, YJ
Finkel, P
Li, JF
Viehland, D
AF Zhuang, Xin
Sing, Marc Lam Chok
Dolabdjian, Christophe
Wang, Yaojin
Finkel, Peter
Li, Jiefang
Viehland, Dwight
TI Mechanical Noise Limit of a Strain-Coupled Magneto(Elasto)electric
Sensor Operating Under a Magnetic or an Electric Field Modulation
SO IEEE SENSORS JOURNAL
LA English
DT Article
DE Magnetoelectric effects; magnetic noise; signal modulation; magnetic
field sensing
ID COMPOSITES
AB The mechanical noise limit of a strain-coupled magneto(elasto)electric composite has been investigated when a magnetic or an electric field modulation is applied to sense a low-frequency magnetic field and access dc field measurement capabilities. The sensitivity and noise of such a composite sensor were derived from constitutive equations based on the piezoelectric and ferromagnetic material properties. The analysis was used to evaluate the equivalent noise floor of the composite sensor and to explain the origin of noise by constituting a mechanically coupled electromagnetic model. Experimental measurements revealed a good fit with the proposed model. For example, an equivalent magnetic noise level of similar to 60 pT/Hz at 1 Hz with dc capability was achieved using an appropriate field modulation.
C1 [Zhuang, Xin; Sing, Marc Lam Chok; Dolabdjian, Christophe] Univ Caen, Ecole Natl Super Ingn Caen, CNRS, Grp Rech Informat Image Automat & Instrumentat Ca, F-14050 Caen, France.
[Wang, Yaojin; Li, Jiefang; Viehland, Dwight] Virginia Polytech Inst & State Univ, Dept Mat Sci & Engn, Blacksburg, VA 24061 USA.
[Finkel, Peter] US Navy, Res Lab, Washington, DC 20375 USA.
RP Zhuang, X (reprint author), Univ Caen, Ecole Natl Super Ingn Caen, CNRS, Grp Rech Informat Image Automat & Instrumentat Ca, F-14050 Caen, France.
EM xin.zhuang@greyc.ensicaen.fr; mar.lam@ensicaen.fr;
christophe.dolabdjian@unicaen.fr; yaojin@vt.edu;
peter.finkel@nrl.navy.mil; jiefang@mse.vt.edu; viehland@mse.vt.edu
RI Wang, Yaojin/F-3748-2012
OI Wang, Yaojin/0000-0003-2561-1855
FU Office of Naval Research Global
FX This work was supported by the Office of Naval Research Global. The
associate editor coordinating the review of this paper and approving it
for publication was Dr. Stoyan Nihtianov.
NR 31
TC 4
Z9 4
U1 6
U2 40
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1530-437X
EI 1558-1748
J9 IEEE SENS J
JI IEEE Sens. J.
PD MAR
PY 2015
VL 15
IS 3
BP 1575
EP 1587
DI 10.1109/JSEN.2014.2363880
PG 13
WC Engineering, Electrical & Electronic; Instruments & Instrumentation;
Physics, Applied
SC Engineering; Instruments & Instrumentation; Physics
GA CA4EZ
UT WOS:000348858300001
ER
PT J
AU Yang, HP
Arnone, R
Jolliff, J
AF Yang, Haoping
Arnone, Robert
Jolliff, Jason
TI Estimating advective near-surface currents from ocean color satellite
images
SO REMOTE SENSING OF ENVIRONMENT
LA English
DT Article
DE MCC; Ocean color; Surface advection; HFRadar currents; BioCast
experiment; Bio-optical; VIIRS; Overlap of swath; Image-derived
currents; Synthetic velocity
ID INHERENT OPTICAL-PROPERTIES; FLOW DECOMPOSITION; VELOCITIES; SEA;
TEMPERATURE; SEQUENCES; MODEL; ALGORITHM; SPARSE
AB Improved maximum cross correlation (MCC) techniques are used to retrieve ocean surface currents from the sequential ocean color imagery provided by multiple newer generations of satellite sensors on hourly scales in the Yellow Sea and the U.S. East and Gulf coasts. The MCC calculation is validated in a series of Bio-Optical Forecasting (BioCast) experiments with predetermined synthetic velocities, and its products are evaluated by examining the errors and biases with respect to the High Frequency Radar (HFRadar) measurements. The root-mean-square (RMS) errors in our best current products derived from the overlap of satellite sensor swath between the VIIRS sequential orbits are less than 0.17 m s(-1) in the evaluation area outside of the Chesapeake Bay. The most accurate current products are those derived from the imagery data of R-rs(551), B-b(551) and C(551), while the image sequences of B-b(551) and Z(eu)_lee are identified as the most suited products for the retrieval of currents because of their best production capacities of valid velocity vectors. Mechanisms between the advective processes and the dynamic changes of bio-optical properties are discussed regarding the performances of various color products on the retrieval of currents. Similarities of velocity distribution in the retrieved vector arrays are collected across different MCC products derived from ocean color datasets that are of different types and derived from different spectral channels of satellite overpasses. The inter-product similarities themselves can be used to characterize the near-surface advection as well and usually have smaller errors than each of the individual MCC currents. Moreover, efforts are also under way to improve the ocean color derived currents by merging several of the MCC products with similarities to increase the total spatial coverage. This study not only seeks the image-derived products best representing the sea surface current structures in coastal areas, but also exploits how these currents can be improved or optimized to support the ocean forecasts. (C) 2014 Elsevier Inc All rights reserved.
C1 [Yang, Haoping; Arnone, Robert] Univ So Mississippi, Stennis Space Ctr, MS 39529 USA.
[Jolliff, Jason] Naval Res Lab, Stennis Space Ctr, MS 39529 USA.
RP Yang, HP (reprint author), Univ So Mississippi, Dept Marine Sci, Stennis Space Ctr, MS 39529 USA.
EM Haoping.Yang@gmail.com
FU Naval Research Laboratory, BAA Award [N00173-09-2-C903]
FX Financial support was provided by the Naval Research Laboratory, BAA
Award Number N00173-09-2-C903 to the University of Southern Mississippi.
Appreciation is extended to Ryan Vandermeulen for VIIRS data. We are
grateful to the anonymous reviewers for their helpful comments and
suggestions.
NR 35
TC 8
Z9 8
U1 3
U2 31
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 0034-4257
EI 1879-0704
J9 REMOTE SENS ENVIRON
JI Remote Sens. Environ.
PD MAR 1
PY 2015
VL 158
BP 1
EP 14
DI 10.1016/j.rse.2014.11.010
PG 14
WC Environmental Sciences; Remote Sensing; Imaging Science & Photographic
Technology
SC Environmental Sciences & Ecology; Remote Sensing; Imaging Science &
Photographic Technology
GA CA4MR
UT WOS:000348879100001
ER
PT J
AU Breger, J
Delehanty, JB
Medintz, IL
AF Breger, Joyce
Delehanty, James B.
Medintz, Igor L.
TI Continuing progress toward controlled intracellular delivery of
semiconductor quantum dots
SO WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY
LA English
DT Review
ID RESONANCE ENERGY-TRANSFER; CELL-PENETRATING PEPTIDES; LIVE CELLS;
IN-VITRO; BIOCOMPATIBLE SEMICONDUCTOR; PROTEOLYTIC ACTIVITY; GOLD
NANOPARTICLES; CYTOSOLIC DELIVERY; MAMMALIAN-CELLS; SIRNA DELIVERY
AB The biological applications of luminescent semiconductor quantum dots (QDs) continue to grow at a nearly unabated pace. This growth is driven, in part, by their unique photophysical and physicochemical properties which have allowed them to be used in many different roles in cellular biology including: as superior fluorophores for a wide variety of cellular labeling applications; as active platforms for assembly of nanoscale sensors; and, more recently, as a powerful tool to understand the mechanisms of nanoparticle mediated drug delivery. Given that controlled cellular delivery is at the intersection of all these applications, the latest progress in delivering QDs to cells is examined here. A brief discussion of relevant considerations including the importance of materials preparation and bioconjugation along with the continuing issue of endosomal sequestration is initially provided for context. Methods for the cellular delivery of QDs are then highlighted including those based on passive exposure, facilitated strategies that utilize peptides or polymers and fully active modalities such as electroporation and other mechanically based methods. Following on this, the exciting advent of QD cellular delivery using multiple or combined mechanisms is then previewed. Several recent methods reporting endosomal escape of QD materials in cells are also examined in detail with a focus on the mechanisms by which access to the cytosol is achieved. The ongoing debate over QD cytotoxicity is also discussed along with a perspective on how this field will continue to evolve in the future. (C) 2014 The Authors. WIREs Nanomedicine and Nanobiotechnology published byWiley Periodicals, Inc.WIREs Nanomed Nanobiotechnol 2015, 7:131-151. doi: 10.1002/wnan.1281 For further resources related to this article, please visit the . Conflict of interest: The authors have declared no conflicts of interest for this article.
C1 [Breger, Joyce; Delehanty, James B.; Medintz, Igor L.] US Naval Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 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
NR 114
TC 18
Z9 18
U1 7
U2 88
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1939-5116
EI 1939-0041
J9 WIRES NANOMED NANOBI
JI Wiley Interdiscip. Rev.-Nanomed. Nanobiotechnol.
PD MAR-APR
PY 2015
VL 7
IS 2
BP 131
EP 151
DI 10.1002/wnan.1281
PG 21
WC Nanoscience & Nanotechnology; Medicine, Research & Experimental
SC Science & Technology - Other Topics; Research & Experimental Medicine
GA AZ9LY
UT WOS:000348537400002
PM 25154379
ER
PT J
AU Howe, PG
AF Howe, P. Gardner, III
TI Keeping Sights on Targets
SO NAVAL WAR COLLEGE REVIEW
LA English
DT Editorial Material
C1 [Howe, P. Gardner, III] US Navy, Washington, DC USA.
[Howe, P. Gardner, III] Naval War Coll, Newport, RI 02841 USA.
RP Howe, PG (reprint author), US Navy, Washington, DC USA.; Howe, PG (reprint author), Naval War Coll, Newport, RI 02841 USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU US NAVAL WAR COLL
PI NEWPORT
PA 686 CUSHING RD, NEWPORT, RI 02841 USA
SN 0028-1484
J9 NAV WAR COLL REV
JI Nav. War Coll. Rev.
PD SPR
PY 2015
VL 68
IS 2
BP 7
EP 10
PG 4
WC International Relations
SC International Relations
GA DP3ZM
UT WOS:000378435000002
ER
PT J
AU Chun, C
Neta, B
AF Chun, Changbum
Neta, Beny
TI Basins of attraction for Zhou-Chen-Song fourth order family of methods
for multiple roots
SO MATHEMATICS AND COMPUTERS IN SIMULATION
LA English
DT Article
DE Iterative methods; Order of convergence; Rational maps; Basin of
attraction; Conjugacy classes
ID NONLINEAR EQUATIONS; ORDER; ITERATION; DYNAMICS
AB There are very few optimal fourth order methods for solving nonlinear algebraic equations having roots of multiplicity m. In a previous paper we have compared 5 such methods, two of which require the evaluation of the (m - 1)th root. We have used the basin of attraction idea to recommend the best optimal fourth order method. Here we suggest to improve on the best of those five, namely Zhou-Chen-Song method by showing how to choose the best weight function. Published by Elsevier B.V. on behalf of International Association for Mathematics and Computers in Simulation (IMACS).
C1 [Chun, Changbum] Sungkyunkwan Univ, Dept Math, Suwon 440746, South Korea.
[Neta, Beny] Naval Postgrad Sch, Dept Appl Math, Monterey, CA 93943 USA.
RP Neta, B (reprint author), Naval Postgrad Sch, Dept Appl Math, Monterey, CA 93943 USA.
EM cbchun@skku.edu; bneta@nps.edu
FU Basic Science Research Program through the National Research Foundation
of Korea (NRF) - Ministry of Education [NRF-2013R1A1A2005012]
FX This research was supported by Basic Science Research Program through
the National Research Foundation of Korea (NRF) funded by the Ministry
of Education (NRF-2013R1A1A2005012).
NR 28
TC 12
Z9 12
U1 0
U2 6
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0378-4754
EI 1872-7166
J9 MATH COMPUT SIMULAT
JI Math. Comput. Simul.
PD MAR
PY 2015
VL 109
BP 74
EP 91
DI 10.1016/j.matcom.2014.08.005
PG 18
WC Computer Science, Interdisciplinary Applications; Computer Science,
Software Engineering; Mathematics, Applied
SC Computer Science; Mathematics
GA AY5GA
UT WOS:000347599700006
ER
PT J
AU Snow, AW
Perkins, FK
Ancona, MG
Robinson, JT
Snow, ES
Foos, EE
AF Snow, Arthur W.
Perkins, F. Keith
Ancona, Mario G.
Robinson, Jeremy T.
Snow, Eric S.
Foos, Edward E.
TI Disordered Nanomaterials for Chemielectric Vapor Sensing: A Review
SO IEEE SENSORS JOURNAL
LA English
DT Article
DE Carbon nanotubes; chemical vapor sensors; disorder; gold nanoclusters;
nanomaterials; reduced graphene oxide; chemielectric point sensing
ID REDUCED GRAPHENE OXIDE; CARBON NANOTUBES; GOLD NANOPARTICLES;
CHEMICAL-DETECTION; CHEMIRESISTOR SENSORS; METAL; RESISTIVITY;
COMPOSITES; ARRAYS; BLACK
AB Although robust chemical vapor detection by chemielectric point sensors remains as a largely unmet challenge at present, the best performance to date and the most likely avenue for future progress is with sensor designs in which the transductive element is a disordered nanostructured material. We here review the evidence for this claim, with illustrations drawn from recent work on sensors made from gold nanoparticles, carbon nanotubes, and reduced graphene oxide nanoplatelets. These examples can be regarded as being prototypical of disordered nanostructured films formed of primitive objects that are nanoscopic in 3-D, 2-D, and 1-D, respectively.
C1 [Snow, Arthur W.; Perkins, F. Keith; Ancona, Mario G.; Robinson, Jeremy T.; Snow, Eric S.] US Naval Res Lab, Washington, DC 20375 USA.
[Foos, Edward E.] Naval Surface Warfare Ctr, Indian Head, MD 20640 USA.
RP Snow, AW (reprint author), US Naval Res Lab, Washington, DC 20375 USA.
EM art.snow@nrl.navy.mil; keith.perkins@nrl.navy.mil;
ancona@estd.nrl.navy.mil; jeremy.robinson@nrl.navy.mil;
eric.snow@nrl.navy.mil; edward.foos@navy.mil
FU Office of Naval Research
FX This work was supported by the Office of Naval Research. The associate
editor coordinating the review of this paper and approving it for
publication was Dr. Chang-Soo Kim.
NR 83
TC 4
Z9 4
U1 8
U2 78
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1530-437X
EI 1558-1748
J9 IEEE SENS J
JI IEEE Sens. J.
PD MAR
PY 2015
VL 15
IS 3
BP 1301
EP 1320
DI 10.1109/JSEN.2014.2364677
PG 20
WC Engineering, Electrical & Electronic; Instruments & Instrumentation;
Physics, Applied
SC Engineering; Instruments & Instrumentation; Physics
GA AX1ZS
UT WOS:000346743600001
ER
PT J
AU Punnoose, R
Crainiceanu, A
Rapp, D
AF Punnoose, Roshan
Crainiceanu, Adina
Rapp, David
TI SPARQL in the cloud using Rya
SO INFORMATION SYSTEMS
LA English
DT Article
DE RDF triple store; SPARQL; Distributed; Scalable; Cloud
AB SPARQL is the standard query language for Resource Description Framework (RDF) data. RDF was designed with the initial goal of developing metadata for the Internet. While the number and the size of the generated RDF datasets are continually increasing, most of today's best RDF storage solutions are confined to a single node. Working on a single node has significant scalability issues, especially considering the magnitude of modern day data. In this paper we introduce Rya, a scalable RDF data management system that efficiently supports SPARQL queries. We introduce storage methods, indexing schemes, and query processing techniques that scale to billions of triples across multiple nodes, while providing fast and easy access to the data through conventional query mechanisms such as SPARQL Our performance evaluation shows that in most cases, our system outperforms existing distributed RDF solutions, even systems much more complex than ours. Published by Elsevier Ltd.
C1 [Crainiceanu, Adina] US Naval Acad, Annapolis, MD 21402 USA.
[Rapp, David] Lab Telecommun Sci, College Pk, MD 20740 USA.
RP Crainiceanu, A (reprint author), US Naval Acad, Annapolis, MD 21402 USA.
EM roshanp@gmail.com; adina@usna.edu; rapp@ltsnet.net
NR 15
TC 2
Z9 2
U1 0
U2 9
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0306-4379
EI 1873-6076
J9 INFORM SYST
JI Inf. Syst.
PD MAR
PY 2015
VL 48
BP 181
EP 195
DI 10.1016/j.is.2013.07.001
PG 15
WC Computer Science, Information Systems
SC Computer Science
GA AW4CZ
UT WOS:000346230200012
ER
PT J
AU Lee, JS
Ainsworth, TL
Wang, YT
Chen, KS
AF Lee, Jong-Sen
Ainsworth, Thomas L.
Wang, Yanting
Chen, Kun-Shan
TI Polarimetric SAR Speckle Filtering and the Extended Sigma Filter
SO IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
LA English
DT Article
DE Polarimetric SAR (PolSAR); speckle reduction; very high resolution SAR
ID COHERENCY MATRIX; SCATTERING-MODEL; DECOMPOSITION; IMAGERY
AB The advancement of synthetic aperture radar (SAR) technology with high-resolution and quad-polarization data demands better and efficient polarimetric SAR (PolSAR) speckle-filtering algorithms. Two requirements on PolSAR speckle filtering are proposed: 1) speckle filtering should be applied to distributed media only, and strong hard targets should be kept unfiltered; and 2) scattering mechanism preservation should be taken into consideration, in addition to speckle reduction. The purpose of this paper is twofold: 1) to propose an effective algorithm that is an extension of the improved sigma filter developed for single-polarization SAR; and 2) to investigate speckle characteristics and the need for speckle filtering for very high resolution (decimeter) PolSAR data. The proposed filter was specifically developed to account for the aforementioned two requirements. Its effectiveness is demonstrated with Jet Propulsion Laboratory airborne synthetic aperture radar data, and comparisons are made with a boxcar filter, the refined Lee filter, and a Wishart-based nonlocal filter. For very high resolution PolSAR systems, such as the German Aerospace Center F-SAR and Japanese Pi-SAR2, with decimeter spatial resolution, we found that the complexWishart distribution is still valid to describe PolSAR speckle characteristics of distributed media and that speckle filtering may be needed depending on the size of objects to be analyzed. F-SAR X-band data with 25-cm resolution is used for illustration.
C1 [Lee, Jong-Sen; Ainsworth, Thomas L.; Wang, Yanting] Naval Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
[Lee, Jong-Sen] Computat Phys Inc, Springfield, VA 22151 USA.
[Chen, Kun-Shan] Natl Cent Univ, Zhongli 32001, Taiwan.
RP Lee, JS (reprint author), Naval Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
EM jong_sen_lee@yahoo.com
NR 22
TC 6
Z9 11
U1 4
U2 31
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0196-2892
EI 1558-0644
J9 IEEE T GEOSCI REMOTE
JI IEEE Trans. Geosci. Remote Sensing
PD MAR
PY 2015
VL 53
IS 3
BP 1150
EP 1160
DI 10.1109/TGRS.2014.2335114
PG 11
WC Geochemistry & Geophysics; Engineering, Electrical & Electronic; Remote
Sensing; Imaging Science & Photographic Technology
SC Geochemistry & Geophysics; Engineering; Remote Sensing; Imaging Science
& Photographic Technology
GA AR9MZ
UT WOS:000343900600002
ER
PT J
AU China, S
Scarnato, B
Owen, RC
Zhang, B
Ampadu, MT
Kumar, S
Dzepina, K
Dziobak, MP
Fialho, P
Perlinger, JA
Hueber, J
Helmig, D
Mazzoleni, LR
Mazzoleni, C
AF China, Swarup
Scarnato, Barbara
Owen, Robert C.
Zhang, Bo
Ampadu, Marian T.
Kumar, Sumit
Dzepina, Katja
Dziobak, Michael P.
Fialho, Paulo
Perlinger, Judith A.
Hueber, Jacques
Helmig, Detlev
Mazzoleni, Lynn R.
Mazzoleni, Claudio
TI Morphology and mixing state of aged soot particles at a remote marine
free troposphere site: Implications for optical properties
SO GEOPHYSICAL RESEARCH LETTERS
LA English
DT Article
ID DISCRETE-DIPOLE APPROXIMATION; BLACK-CARBON AEROSOLS; RADIATIVE
PROPERTIES; TECHNICAL NOTE; NS-SOOT; MODEL; SULFATE; HYGROSCOPICITY;
SENSITIVITY; DEPENDENCE
AB The radiative properties of soot particles depend on their morphology and mixing state, but their evolution during transport is still elusive. Here we report observations from an electron microscopy analysis of individual particles transported in the free troposphere over long distances to the remote Pico Mountain Observatory in the Azores in the North Atlantic. Approximately 70% of the soot particles were highly compact and of those 26% were thinly coated. Discrete dipole approximation simulations indicate that this compaction results in an increase in soot single scattering albedo by a factor of <= 2.17. The top of the atmosphere direct radiative forcing is typically smaller for highly compact than mass-equivalent lacy soot. The forcing estimated using Mie theory is within 12% of the forcing estimated using the discrete dipole approximation for a high surface albedo, implying that Mie calculations may provide a reasonable approximation for compact soot above remote marine clouds.
C1 [China, Swarup; Zhang, Bo; Kumar, Sumit; Dzepina, Katja; Dziobak, Michael P.; Perlinger, Judith A.; Mazzoleni, Lynn R.; Mazzoleni, Claudio] Michigan Technol Univ, Atmospher Sci Program, Houghton, MI 49931 USA.
[China, Swarup; Kumar, Sumit; Mazzoleni, Claudio] Michigan Technol Univ, Dept Phys, Houghton, MI 49931 USA.
[Scarnato, Barbara] Naval Postgrad Sch, Dept Meteorol, Monterey, CA USA.
[Owen, Robert C.] US EPA, Res Triangle Pk, NC 27711 USA.
[Ampadu, Marian T.; Dzepina, Katja; Mazzoleni, Lynn R.] Michigan Technol Univ, Dept Chem, Houghton, MI 49931 USA.
[Fialho, Paulo] Univ Azores, Dept Agr Sci, Angra Do Heroismo, Portugal.
[Perlinger, Judith A.] Michigan Technol Univ, Dept Civil & Environm Engn, Houghton, MI 49931 USA.
[Hueber, Jacques; Helmig, Detlev] Univ Colorado, Inst Arctic & Alpine Res, Boulder, CO 80309 USA.
RP China, S (reprint author), Michigan Technol Univ, Atmospher Sci Program, Houghton, MI 49931 USA.
EM schina@mtu.edu; cmazzoleni@mtu.edu
RI Dzepina, Katja/A-1372-2014;
OI Fialho, Paulo/0000-0001-9137-3870
FU U.S. Department of Energy's Atmospheric System Research [DE-SC0006941];
National Science Foundation [AGS-1110059]; NASA's Earth and Space
Science Graduate Fellowship [NNX13AN68H]; Earth Planetary and Space
Sciences Institute at Michigan Technological University
FX The data for this paper are available upon request from the authors.
This work was funded by the U.S. Department of Energy's Atmospheric
System Research (grant DE-SC0006941), the National Science Foundation
(grant AGS-1110059), NASA's Earth and Space Science Graduate Fellowship
(grant NNX13AN68H), and the Earth Planetary and Space Sciences Institute
at Michigan Technological University. We thank C. Sorensen for
insightful discussions on the fractal dimension and Jesse Nordeng and
Kyle Gorkowski for helping in developing the SEM sampler. We are
grateful for the pioneering work of the late Richard Honrath in
establishing the PMO site.
NR 57
TC 18
Z9 18
U1 6
U2 54
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 FEB 28
PY 2015
VL 42
IS 4
BP 1243
EP 1250
DI 10.1002/2014GL062404
PG 8
WC Geosciences, Multidisciplinary
SC Geology
GA CE5DY
UT WOS:000351851900035
ER
PT J
AU Esqueda, IS
Cress, CD
Cao, Y
Che, Y
Fritze, M
Zhou, C
AF Esqueda, I. S.
Cress, C. D.
Cao, Y.
Che, Y.
Fritze, M.
Zhou, C.
TI The impact of defect scattering on the quasi-ballistic transport of
nanoscale conductors
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID ELECTRON-MOBILITY TRANSISTORS; PROTON IRRADIATION; CARRIER TRANSPORT;
CARBON NANOTUBES; ION IRRADIATION; MOSFETS; PHYSICS; OXIDE
AB Using the Landauer approach for carrier transport, we analyze the impact of defects induced by ion irradiation on the transport properties of nanoscale conductors that operate in the quasi-ballistic regime. Degradation of conductance results from a reduction of carrier mean free path due to the introduction of defects in the conducting channel. We incorporate scattering mechanisms from radiation-induced defects into calculations of the transmission coefficient and present a technique for extracting modeling parameters from near-equilibrium transport measurements. These parameters are used to describe degradation in the transport properties of nanoscale devices using a formalism that is valid under quasi-ballistic operation. The analysis includes the effects of band-structure and dimensionality on the impact of defect scattering and discusses transport properties of nanoscale devices from the diffusive to the ballistic limit. We compare calculations with recently published measurements of irradiated nanoscale devices such as single-walled carbon nanotubes, graphene, and deep-submicron Si metal-oxide-semiconductor field-effect transistors. (C) 2015 AIP Publishing LLC.
C1 [Esqueda, I. S.; Fritze, M.] Univ So Calif, Inst Informat Sci, Marina Del Rey, CA 90292 USA.
[Cress, C. D.] Naval Res Lab, Div Elect Sci & Technol, Washington, DC 20375 USA.
[Cao, Y.; Che, Y.; Zhou, C.] Univ So Calif, Dept Elect Engn, Los Angeles, CA 90089 USA.
RP Esqueda, IS (reprint author), Univ So Calif, Inst Informat Sci, Marina Del Rey, CA 90292 USA.
EM isanchez@isi.edu
RI Zhou, Chongwu/F-7483-2010;
OI Cress, Cory/0000-0001-7563-6693
FU Defense Threat Reduction Agency [HDTRA-1-10-1-0015, HDTRA-1-10-1-0122]
FX This work was supported (in part) by the Defense Threat Reduction
Agency, Basic Research Award Nos. HDTRA-1-10-1-0015 and
HDTRA-1-10-1-0122.
NR 34
TC 3
Z9 3
U1 4
U2 11
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 FEB 28
PY 2015
VL 117
IS 8
AR 084319
DI 10.1063/1.4913779
PG 8
WC Physics, Applied
SC Physics
GA CD5MR
UT WOS:000351132500051
ER
PT J
AU Emery, SB
Xin, Y
Ridge, CJ
Buszek, RJ
Boatz, JA
Boyle, JM
Little, BK
Lindsay, CM
AF Emery, S. B.
Xin, Y.
Ridge, C. J.
Buszek, R. J.
Boatz, J. A.
Boyle, J. M.
Little, B. K.
Lindsay, C. M.
TI Unusual behavior in magnesium-copper cluster matter produced by helium
droplet mediated deposition
SO JOURNAL OF CHEMICAL PHYSICS
LA English
DT Article
ID GENERALIZED GRADIENT APPROXIMATION; MG-CU; EXCHANGE; SYSTEM; FILMS;
NANOCOMPOSITE; NANOPARTICLES; COMBUSTION; GROUP-11; ALLOYS
AB We demonstrate the ability to produce core-shell nanoclusters of materials that typically undergo intermetallic reactions using helium droplet mediated deposition. Composite structures of magnesium and copper were produced by sequential condensation of metal vapors inside the 0.4 K helium droplet baths and then gently deposited onto a substrate for analysis. Upon deposition, the individual clusters, with diameters similar to 5 nm, form a cluster material which was subsequently characterized using scanning and transmission electron microscopies. Results of this analysis reveal the following about the deposited cluster material: it is in the un-alloyed chemical state, it maintains a stable core-shell 5 nm structure at sub-monolayer quantities, and it aggregates into unreacted structures of similar to 75 nm during further deposition. Surprisingly, high angle annular dark field scanning transmission electron microscopy images revealed that the copper appears to displace the magnesium at the core of the composite cluster despite magnesium being the initially condensed species within the droplet. This phenomenon was studied further using preliminary density functional theory which revealed that copper atoms, when added sequentially to magnesium clusters, penetrate into the magnesium cores. (C) 2015 AIP Publishing LLC.
C1 [Emery, S. B.; Little, B. K.] Univ Dayton, Res Inst, Dayton, OH 45469 USA.
[Emery, S. B.; Ridge, C. J.; Little, B. K.; Lindsay, C. M.] Air Force Res Lab, Munit Directorate, Eglin AFB, FL 32542 USA.
[Xin, Y.] Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32310 USA.
[Buszek, R. J.; Boatz, J. A.] ERC Inc, Edwards AFB, CA 93524 USA.
[Emery, S. B.; Boyle, J. M.] Naval Surface Warfare Ctr, Indian Head Explos Ordnance Technol Div, Indian Head, MD 20640 USA.
RP Emery, SB (reprint author), Naval Surface Warfare Ctr, Indian Head Explos Ordnance Technol Div, Indian Head, MD 20640 USA.
EM samuel.emery@navy.mil
FU Air Force Office of Scientific Research and Program [3002NW]; Florida
State University Research Foundation; National High Magnetic Field
Laboratory [NSF-DMR-0654118]; State of Florida; Department of Defense
(DoD) High Performance Computing Modernization Program at the DoD
Supercomputing Resource Center located at the Engineer Research and
Development Center [96TW-2014-0105]
FX This research was performed while C.J.R. held a National Research
Council Research Associateship Award at the Air Force Research
Laboratory Munitions Directorate. This work was supported by research
Grant 3002NW from the Air Force Office of Scientific Research and
Program Officer Dr. Michael Berman. The TEM work was carried out at
Florida State University, and the TEM facility at FSU is funded and
supported by the Florida State University Research Foundation, National
High Magnetic Field Laboratory (NSF-DMR-0654118), and the State of
Florida. R.J.B. and J.A.B. gratefully acknowledge a grant of computer
time from the Department of Defense (DoD) High Performance Computing
Modernization Program at the DoD Supercomputing Resource Center located
at the Engineer Research and Development Center, Vicksburg, MS.
DISTRIBUTION A, Approved for public release, distribution unlimited
(96TW-2014-0105).
NR 48
TC 5
Z9 5
U1 3
U2 25
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0021-9606
EI 1089-7690
J9 J CHEM PHYS
JI J. Chem. Phys.
PD FEB 28
PY 2015
VL 142
IS 8
AR 084307
DI 10.1063/1.4913210
PG 7
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA CC7LC
UT WOS:000350548000027
PM 25725731
ER
PT J
AU Bernstein, N
Hellberg, CS
Johannes, MD
Mazin, II
Mehl, MJ
AF Bernstein, N.
Hellberg, C. Stephen
Johannes, M. D.
Mazin, I. I.
Mehl, M. J.
TI What superconducts in sulfur hydrides under pressure and why
SO PHYSICAL REVIEW B
LA English
DT Article
ID TOTAL-ENERGY CALCULATIONS; AUGMENTED-WAVE METHOD; BASIS-SET; MGB2;
HYDROGEN; PHASE
AB The recent discovery of superconductivity at 190 K in highly compressed H2S is spectacular not only because it sets a record high critical temperature, but because it does so in a material that appears to be, and we argue here that it is, a conventional strong-coupling BCS superconductor. Intriguingly, superconductivity in the observed pressure and temperature range was predicted theoretically in a similar compound, H3S. Several important questions about this remarkable result, however, are left unanswered: (1) Does the stoichiometry of the superconducting compound differ from the nominal composition, and could it be the predicted H3S compound? (2) Is the physical origin of the anomalously high critical temperature related only to the high H phonon frequencies, or does strong electron-ion coupling play a role? We show that at experimentally relevant pressures H2S is unstable, decomposing into H3S and S, and that H3S has a record high T-c due to its covalent bonds driven metallic, which make this compound rather similar to MgB2, but unlike most other good conventional superconductors.
C1 [Bernstein, N.; Hellberg, C. Stephen; Johannes, M. D.; Mazin, I. I.; Mehl, M. J.] Naval Res Lab, Ctr Computat Mat Sci, Washington, DC 20375 USA.
RP Bernstein, N (reprint author), Naval Res Lab, Ctr Computat Mat Sci, Washington, DC 20375 USA.
RI Mehl, Michael/H-8814-2016
FU Office of Naval Research through the Naval Research Laboratory's basic
research program
FX We acknowledge useful discussions with D.A. Papacon-stantopoulos and M.
Calandra. This research was funded by the Office of Naval Research
through the Naval Research Laboratory's basic research program.
Computations were performed at the AFRL and ERDC DoD Supercomputing
Resource Centers.
NR 28
TC 58
Z9 58
U1 21
U2 112
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 FEB 27
PY 2015
VL 91
IS 6
AR 060511
DI 10.1103/PhysRevB.91.060511
PG 5
WC Physics, Condensed Matter
SC Physics
GA CC4IP
UT WOS:000350317300006
ER
PT J
AU Karasik, M
Weaver, JL
Aglitskiy, Y
Oh, J
Obenschain, SP
AF Karasik, Max
Weaver, J. L.
Aglitskiy, Y.
Oh, J.
Obenschain, S. P.
TI Suppression of Laser Nonuniformity Imprinting Using a Thin High-Z
Coating
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID INDUCED SPATIAL INCOHERENCE; NIKE KRF LASER; FUSION-TARGETS; BEAM;
TRANSMISSION; PERFORMANCE; REDUCTION; FACILITY; ADIABAT; DRIVEN
AB Imprinting of laser nonuniformity is a limiting factor in direct-drive inertial confinement fusion experiments, particularly when available laser smoothing is limited. A thin (similar to 400 angstrom) high-Z metal coating is found to substantially suppress laser imprint for planar targets driven by pulse shapes and intensities relevant to implosions on the National Ignition Facility while retaining low adiabat target acceleration. A hybrid of indirect and direct drive, this configuration results in initial ablation by x rays from the heated high-Z layer, creating a large standoff for perturbation smoothing.
C1 [Karasik, Max; Weaver, J. L.; Obenschain, S. P.] Naval Res Lab, Plasma Phys Div, Washington, DC 20375 USA.
[Aglitskiy, Y.] Leidos Inc, Reston, VA 20190 USA.
[Oh, J.] RSI, Lanham, MD 20706 USA.
RP Karasik, M (reprint author), Naval Res Lab, Plasma Phys Div, Washington, DC 20375 USA.
FU U.S. DOE NNSA
FX The authors are grateful for the work of the Nike laser and target
crews-D. P. Brown, B. Jenkins, T. J. Kessler, S. Krafsig, and S.
Terrell-the assistance of L. Y. Chan, and the helpful discussions with
A. L. Velikovich. This work is supported by the U.S. DOE NNSA.
NR 32
TC 7
Z9 7
U1 4
U2 13
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 FEB 26
PY 2015
VL 114
IS 8
AR 085001
DI 10.1103/PhysRevLett.114.085001
PG 5
WC Physics, Multidisciplinary
SC Physics
GA CC2YH
UT WOS:000350210600006
PM 25768766
ER
PT J
AU Das, P
Kanchanavatee, N
Helton, JS
Huang, K
Baumbach, RE
Bauer, ED
White, BD
Burnett, VW
Maple, MB
Lynn, JW
Janoschek, M
AF Das, Pinaki
Kanchanavatee, N.
Helton, J. S.
Huang, K.
Baumbach, R. E.
Bauer, E. D.
White, B. D.
Burnett, V. W.
Maple, M. B.
Lynn, J. W.
Janoschek, M.
TI Chemical pressure tuning of URu2Si2 via isoelectronic substitution of Ru
with Fe
SO PHYSICAL REVIEW B
LA English
DT Article
ID ELECTRON SUPERCONDUCTOR URU2SI2; HIDDEN-ORDER TRANSITION; FERMION SYSTEM
URU2SI2; COMPOUND URU2SI2; MAGNETIC EXCITATIONS; SURFACE; TEMPERATURE;
RESISTIVITY; ENTROPY; LATTICE
AB We have used specific heat and neutron diffraction measurements on single crystals of URu2-xFexSi2 for Fe concentrations x <= 0.7 to establish that chemical substitution of Ru with Fe acts as "chemical pressure" P-ch as previously proposed by Kanchanavatee et al. [Phys. Rev. B 84, 245122 ( 2011)] based on bulk measurements on polycrystalline samples. Notably, neutron diffraction reveals a sharp increase of the uranium magnetic moment at x = 0.1, reminiscent of the behavior at the "hidden order" to large-moment-antiferromagnetic phase transition observed at a pressure Px approximate to 0.5-0.7 GP(a) in URu2Si2. Using the unit-cell volume determined from our measurements and an isothermal compressibility kappa(T) = 5.2 x 10(-3) GPa(-1) for URu2Si2, we determine the chemical pressure Pch in URu2-xFexSi2 as a function of x. The resulting temperature (T)-chemical pressure ( P-ch) phase diagram for URu2-xFexSi2 is in agreement with the established temperature (T)-external pressure (P) phase diagram of URu2Si2.
C1 [Das, Pinaki; Baumbach, R. E.; Bauer, E. D.; Janoschek, M.] Los Alamos Natl Lab, MPA CMMS, Los Alamos, NM 87545 USA.
[Kanchanavatee, N.; White, B. D.; Burnett, V. W.; Maple, M. B.] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA.
[Kanchanavatee, N.; Huang, K.; White, B. D.; Burnett, V. W.; Maple, M. B.] Univ Calif San Diego, Ctr Adv Nanosci, La Jolla, CA 92093 USA.
[Helton, J. S.] US Naval Acad, Dept Phys, Annapolis, MD 21402 USA.
[Helton, J. S.; Lynn, J. W.] NIST, Ctr Neutron Res, Gaithersburg, MD 20899 USA.
[Huang, K.; Maple, M. B.] Univ Calif San Diego, La Jolla, CA 92093 USA.
[Baumbach, R. E.] Florida State Univ, Natl High Magnet Field Lab, Tallahassee, FL 32310 USA.
RP Janoschek, M (reprint author), Los Alamos Natl Lab, MPA CMMS, POB 1663, Los Alamos, NM 87545 USA.
EM mjanoschek@lanl.gov
RI Das, Pinaki/C-2877-2012; Janoschek, Marc/M-8871-2015;
OI Janoschek, Marc/0000-0002-2943-0173; Bauer, Eric/0000-0003-0017-1937
FU U.S. Department of Energy, Office of Basic Energy Sciences, Division of
Materials Sciences and Engineering [DE-FG02-04ER46105]; National Science
Foundation [DMR-0802478]
FX The research at UCSD was supported by the U.S. Department of Energy,
Office of Basic Energy Sciences, Division of Materials Sciences and
Engineering under Grant No. DE-FG02-04ER46105 (sample synthesis) and the
National Science Foundation under Grant No. DMR-0802478 (sample
characterization). Work at Los Alamos National Laboratory (LANL) was
performed under the auspices of the U.S. Department of Energy, Office of
Basic Energy Sciences, Division of Materials Sciences and Engineering.
The identification of any commercial product or trade name does not
imply endorsement or recommendation by NIST. We thank William Ratcliff
and Yang Zhao for technical support during the experiments.
NR 47
TC 11
Z9 11
U1 4
U2 31
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
EI 1550-235X
J9 PHYS REV B
JI Phys. Rev. B
PD FEB 26
PY 2015
VL 91
IS 8
AR 085122
DI 10.1103/PhysRevB.91.085122
PG 6
WC Physics, Condensed Matter
SC Physics
GA CC2XI
UT WOS:000350207900001
ER
PT J
AU Kidwell, DA
Dominguez, DD
Grabowski, KS
DeChiaro, LF
AF Kidwell, D. A.
Dominguez, D. D.
Grabowski, K. S.
DeChiaro, L. F., Jr.
TI Observation of radio frequency emissions from electrochemical loading
experiments
SO CURRENT SCIENCE
LA English
DT Article
DE Calorimetry; deuterium; excess energy; palladium; radio frequency
ID HEAVY-WATER; PALLADIUM; DEUTERIUM; ELECTROLYSIS; CALORIMETRY; SYSTEM
AB Palladium foil cathodes were electrochemically loaded with deuterium from alkaline solutions of heavy water in specially designed closed calorimeter cells. Here, one cell is described that showed low levels of constant heat (1-7 mW) and radio frequency (RF) emanations, but the RF was not correlated with the heat production. This cell is compared with Pd90Rh10 alloy cathodes that showed excess energy bursts of 2.4-44.3 kJ. In these cells, RF coincident with the bursts was observed peaking at different frequencies from about 450 kHz and extending into the MHz range. Some of the excess energy production in LENR may be in the MHz RF range, which has no conventional explanation in electrochemistry.
C1 [Kidwell, D. A.; Grabowski, K. S.] Naval Res Lab, Washington, DC 20375 USA.
[Dominguez, D. D.] Nova Res Inc, Alexandria, VA 22308 USA.
[DeChiaro, L. F., Jr.] Naval Surface Warfare Ctr Dahlgren, Dahlgren, VA USA.
RP Kidwell, DA (reprint author), Naval Res Lab, Washington, DC 20375 USA.
EM david.kidwell@nrl.navy.mil
FU Defense Advanced Research Projects Agency
FX Financial support from the Defense Advanced Research Projects Agency is
gratefully acknowledged. The views, opinions and/or findings contained
in this manuscript are those of the authors and should not be
interpreted as representing the official views or policies, either
expressed or implied, of the Naval Research Laboratory or the Department
of Defense, USA.
NR 24
TC 0
Z9 0
U1 0
U2 1
PU INDIAN ACAD SCIENCES
PI BANGALORE
PA C V RAMAN AVENUE, SADASHIVANAGAR, P B #8005, BANGALORE 560 080, INDIA
SN 0011-3891
J9 CURR SCI INDIA
JI Curr. Sci.
PD FEB 25
PY 2015
VL 108
IS 4
BP 578
EP 581
PG 4
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA CF0KB
UT WOS:000352231500023
ER
PT J
AU Russell, KL
Baker, CI
Hansen, C
Poland, GA
Ryan, MAK
Merrill, MM
Gray, GC
AF Russell, Kevin L.
Baker, Carolyn I.
Hansen, Christian
Poland, Gregory A.
Ryan, Margaret A. K.
Merrill, Mary M.
Gray, Gregory C.
TI Lack of effectiveness of the 23-valent polysaccharide pneumococcal
vaccine in reducing all-cause pneumonias among healthy young military
recruits: A randomized, double-blind, placebo-controlled trial
SO VACCINE
LA English
DT Article
DE Pneumonia; Epidemiology; Streptococcus; Pneumococcus; Vaccine
ID POLYMERASE-CHAIN-REACTION; STREPTOCOCCUS-PNEUMONIAE;
MYCOPLASMA-PNEUMONIAE; MARINE-CORPS; COST-EFFECTIVENESS; INFLUENZA;
OUTBREAK; DISEASE; DIAGNOSIS; PERSONNEL
AB Background: Streptococcus pneumoniae infections have periodically caused significant morbidity and outbreaks among military personnel, especially trainees. This study evaluated the effectiveness of the 23-valent polysaccharide pneumococcal vaccine (PPV23) in reducing pneumonia in healthy military trainees.
Methods: From 2000-2003, 152 723 military trainees from 5 US training camps were enrolled in a doubleb-lind, placebo-controlled trial of PPV23. Participants were closely monitored during basic training for radiographically confirmed pneumonia etiology and loss-of-training days. Participants were also followed using electronic medical encounter data until I June 2007 for three additional outcomes: any-cause pneumonia, any acute respiratory disease, and meningitis.
Results: Comparison of demographic data by study arm suggested the randomization procedures were sound. During basic training, 371 study participants developed radiographically confirmed pneumonia. None had evidence of S. pneumoniae infection, but other etiologies included adenovirus (38%), Chlamydophila pneumoniae (9%), and Mycoplasma pneumoniae (8%). During the follow-up period, many study participants, in both the vaccine and placebo groups, had clinical encounters for the medical outcomes of interest. However, Cox's proportional hazard modeling revealed no evidence of a protective vaccine effect during recruit training (radiographically confirmed pneumonia) or up to 6.7 years after enrollment (any-cause pneumonia, any acute respiratory disease, or meningitis).
Conclusions: Data from this large, double-blind, placebo controlled trial do not support routine use of PPV23 among healthy new military trainees. Published by Elsevier Ltd.
C1 [Russell, Kevin L.; Baker, Carolyn I.; Hansen, Christian; Ryan, Margaret A. K.] Naval Hlth Res Ctr, Operat Infect Dis Dept, San Diego, CA 92106 USA.
[Russell, Kevin L.] Armed Forces Hlth Surveillance Ctr, Silver Spring, MD 20901 USA.
[Baker, Carolyn I.] Hologic Inc, San Diego, CA 92121 USA.
[Poland, Gregory A.] Mayo Vaccine Res Grp, Coll Med, Rochester, MN 55905 USA.
[Ryan, Margaret A. K.] Naval Hosp Camp Pendleton, Clin Invest Program, Camp Pendleton, CA 92055 USA.
[Merrill, Mary M.; Gray, Gregory C.] Duke Univ, Global Hlth Inst, Div Infect Dis, Durham, NC 27710 USA.
[Merrill, Mary M.; Gray, Gregory C.] Duke Univ, Nicholas Sch Environm, Durham, NC 27710 USA.
RP Russell, KL (reprint author), Duke Univ, Global Hlth Inst, Div Infect Dis, 315 Trent Rd, Durham, NC 27710 USA.
EM kevin.russell4@us.army.mil; Gregory.gray@duke.edu
FU US Army Medical Research Acquisition Activity of the US Army Medical
Research and Materiel Command [DAMD17-00-2-0013]
FX This work was supported by the US Army Medical Research Acquisition
Activity of the US Army Medical Research and Materiel Command [grant
number DAMD17-00-2-0013]. Wyeth Pharmaceuticals (now Pfizer) provided
support during the first half of the study by donation of study vaccine
(Pnu-Imune 23) and to the equivalent product produced by Merck & Co.
Inc. (Pneumovax. 23).
NR 42
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U2 2
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0264-410X
EI 1873-2518
J9 VACCINE
JI Vaccine
PD FEB 25
PY 2015
VL 33
IS 9
BP 1182
EP 1187
DI 10.1016/j.vaccine.2014.12.058
PG 6
WC Immunology; Medicine, Research & Experimental
SC Immunology; Research & Experimental Medicine
GA CC2QO
UT WOS:000350189900013
PM 25579777
ER
PT J
AU Palastro, JP
Kaganovich, D
Gordon, D
Hafizi, B
Helle, M
Penano, J
Ting, A
AF Palastro, J. P.
Kaganovich, D.
Gordon, D.
Hafizi, B.
Helle, M.
Penano, J.
Ting, A.
TI A nonlinear plasma retroreflector for single pulse Compton
backscattering
SO NEW JOURNAL OF PHYSICS
LA English
DT Article
DE Compton scattering; laser wakefield acceleration; plasma mirror; x-ray
source; laser plasma interactions
ID STIMULATED RAMAN-SCATTERING; INHOMOGENEOUS-PLASMA; LASER-PULSES; X-RAYS;
ELECTRONS; BEAMS
AB Compton scattered x-rays can be generated using a configuration consisting of a single ultrashort laser pulse and a shaped gas target. Upon ionization the gas target serves as a plasma mirror that reflects the incident pulse providing a counter-propagating electromagnetic wiggler. While plasma mirrors are often conceived as linear Fresnel reflectors, we demonstrate that for high-intensity, ultrashort laser pulses the reflection results from two distinct nonlinear mechanisms. At lower densities, the reflection arises from the emission of an electromagnetic pulse during the saturation of the absolute Raman instability at the quarter critical surface. At higher densities the reflection of the pulse from the critical surface sets up a density fluctuation that acts as a Bragg-like reflector. These mechanisms, occurring in a non-perturbative regime of laser-plasma interactions, are examined numerically in order to characterize the Compton scattered radiation.
C1 [Palastro, J. P.] Icarus Res Inc, Bethesda, MD 20824 USA.
[Kaganovich, D.; Gordon, D.; Hafizi, B.; Helle, M.; Penano, J.; Ting, A.] Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
RP Palastro, JP (reprint author), Icarus Res Inc, POB 30780, Bethesda, MD 20824 USA.
EM palastro1@gmail.com
OI Kaganovich, Dmitri/0000-0002-0905-5871
FU Department of Energy; Naval Research Laboratory 6.1 Program
FX This work is supported by the Department of Energy and the Naval
Research Laboratory 6.1 Program. The authors would like to thank Y-H
Chen, P Sprangle, S Kalmykov, and A Arefiev for fruitful discussions.
NR 36
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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 FEB 24
PY 2015
VL 17
AR 023072
DI 10.1088/1367-2630/17/2/023072
PG 13
WC Physics, Multidisciplinary
SC Physics
GA CF9EX
UT WOS:000352867100010
ER
PT J
AU Gunlycke, D
White, CT
AF Gunlycke, Daniel
White, Carter T.
TI Probing barrier transmission in ballistic graphene
SO PHYSICAL REVIEW B
LA English
DT Article
ID GRAIN-BOUNDARIES; SCATTERING; TRANSPORT
AB We derive the local density of states from itinerant and boundary states around transport barriers and edges in graphene and show that the itinerant states lead to mesoscale undulations that could be used to probe their scattering properties in equilibrium without the need for lateral transport measurements. This finding will facilitate vetting of extended structural defects, such as grain boundaries or line defects as transport barriers for switchable graphene resonant tunneling transistors. We also show that barriers could exhibit double minima and that the charge density away from highly reflective barriers and edges scales as x(-2).
C1 [Gunlycke, Daniel; White, Carter T.] Naval Res Lab, Washington, DC 20375 USA.
RP Gunlycke, D (reprint author), Naval Res Lab, Washington, DC 20375 USA.
EM daniel.gunlycke@nrl.navy.mil
FU U.S. Office of Naval Research; U.S. Naval Research Laboratory
FX The authors acknowledge support from the U.S. Office of Naval Research,
directly and through the U.S. Naval Research Laboratory.
NR 30
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U1 2
U2 18
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 FEB 24
PY 2015
VL 91
IS 7
AR 075425
DI 10.1103/PhysRevB.91.075425
PG 5
WC Physics, Condensed Matter
SC Physics
GA CC1MC
UT WOS:000350103800008
ER
PT J
AU Fragiadakis, D
Roland, CM
AF Fragiadakis, D.
Roland, C. M.
TI Rotational dynamics of simple asymmetric molecules
SO PHYSICAL REVIEW E
LA English
DT Article
ID GLASS-FORMING LIQUIDS; DIELECTRIC-RELAXATION; LIGHT-SCATTERING;
PHOTON-CORRELATION; SUPERCOOLED STATE; POLYMERS; SPECTROSCOPY;
TEMPERATURE; SIMULATIONS; TRANSITION
AB Molecular dynamic simulations were carried out on rigid diatomic molecules, which exhibit both alpha (structural) and beta (secondary) dynamics. The relaxation scenarios range from onset behavior, in which a distinct alpha process emerges on cooling, to merging behavior, associated with two relaxation peaks that converge at higher temperature. These properties, as well as the manifestation of the beta peak as an excess wing, depend not only on thermodynamic conditions, but also on both the symmetry of the molecule and the correlation function (odd or even) used to analyze its dynamics. These observations help to reconcile divergent results obtained from different experiments. For example, the beta process is more intense and the alpha-relaxation peak is narrower in dielectric relaxation spectra than in dynamic light scattering or NMR measurements. In the simulations herein, this follows from the weaker contribution of the secondary relaxation to even-order correlation functions, related to the magnitude of the relevant angular jumps.
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, in part by ONR [331]
FX This work was supported by the Office of Naval Research, in part by ONR
Code 331.
NR 38
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U1 4
U2 18
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 2470-0045
EI 2470-0053
J9 PHYS REV E
JI Phys. Rev. E
PD FEB 24
PY 2015
VL 91
IS 2
AR 022310
DI 10.1103/PhysRevE.91.022310
PG 7
WC Physics, Fluids & Plasmas; Physics, Mathematical
SC Physics
GA CC1NG
UT WOS:000350107200003
PM 25768508
ER
PT J
AU Matta, JT
Garg, U
Li, W
Frauendorf, S
Ayangeakaa, AD
Patel, D
Schlax, KW
Palit, R
Saha, S
Sethi, J
Trivedi, T
Ghugre, SS
Raut, R
Sinha, AK
Janssens, RVF
Zhu, S
Carpenter, MP
Lauritsen, T
Seweryniak, D
Chiara, CJ
Kondev, FG
Hartley, DJ
Petrache, CM
Mukhopadhyay, S
Lakshmi, DV
Raju, MK
Rao, PVM
Tandel, SK
Ray, S
Donau, F
AF Matta, J. T.
Garg, U.
Li, W.
Frauendorf, S.
Ayangeakaa, A. D.
Patel, D.
Schlax, K. W.
Palit, R.
Saha, S.
Sethi, J.
Trivedi, T.
Ghugre, S. S.
Raut, R.
Sinha, A. K.
Janssens, R. V. F.
Zhu, S.
Carpenter, M. P.
Lauritsen, T.
Seweryniak, D.
Chiara, C. J.
Kondev, F. G.
Hartley, D. J.
Petrache, C. M.
Mukhopadhyay, S.
Lakshmi, D. Vijaya
Raju, M. Kumar
Rao, P. V. Madhusudhana
Tandel, S. K.
Ray, S.
Doenau, F.
TI Transverse Wobbling in Pr-135
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID COINCIDENCE DATA; NUCLEI; MODE
AB A pair of transverse wobbling bands is observed in the nucleus Pr-135. The wobbling is characterized by Delta I = 1, E2 transitions between the bands, and a decrease in the wobbling energy confirms its transverse nature. Additionally, a transition from transverse wobbling to a three-quasiparticle band comprised of strong magnetic dipole transitions is observed. These observations conform well to results from calculations with the tilted axis cranking model and the quasiparticle rotor model.
C1 [Matta, J. T.; Garg, U.; Li, W.; Frauendorf, S.; Ayangeakaa, A. D.; Patel, D.; Schlax, K. W.] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA.
[Palit, R.; Saha, S.; Sethi, J.; Trivedi, T.] Tata Inst Fundamental Res, Bombay 400005, Maharashtra, India.
[Ghugre, S. S.; Raut, R.; Sinha, A. K.] UGC DAE Consortium Sci Res, Kolkata 700098, India.
[Janssens, R. V. F.; Zhu, S.; Carpenter, M. P.; Lauritsen, T.; Seweryniak, D.; Chiara, C. J.] Argonne Natl Lab, Div Phys, Argonne, IL 60439 USA.
[Chiara, C. J.] Univ Maryland, Dept Chem & Biochem, College Pk, MD 20742 USA.
[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.
[Petrache, C. M.] Univ Paris 11, Ctr Sci Nucl & Sci Mat, F-91405 Orsay, France.
[Petrache, C. M.] CNRS, IN2P3, F-91405 Orsay, France.
[Mukhopadhyay, S.] Bhabha Atom Res Ctr, Bombay 400085, Maharashtra, India.
[Lakshmi, D. Vijaya; Raju, M. Kumar; Rao, P. V. Madhusudhana] Andhra Univ, Dept Nucl Phys, Visakhapatnam 530003, Andhra Pradesh, India.
[Tandel, S. K.] UM DAE Ctr Excellence Basic Sci, Bombay 400098, Maharashtra, India.
[Ray, S.] Saha Inst Nucl Phys, Kolkata 700064, India.
[Doenau, F.] Helmholtz Zentrum, Inst Strahlenphys, D-01314 Dresden, Germany.
RP Matta, JT (reprint author), Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA.
RI Palit, Rudrajyoti/F-5185-2012; Carpenter, Michael/E-4287-2015;
Ayangeakaa, Akaa/F-3683-2015; Mukhi, Kumar Raju/C-8099-2016
OI Carpenter, Michael/0000-0002-3237-5734; Ayangeakaa,
Akaa/0000-0003-1679-3175; Mukhi, Kumar Raju/0000-0002-2717-281X
FU U.S. National Science Foundation [PHY-1068192 (UND), PHY-1203100
(USNA)]; APS-IUSSTF Physics Student and Post-doc Visitation Program;
U.S. Department of Energy, Office of Science, Office of Nuclear Physics
[DE-AC02-06CH11357 (ANL), DE-FG02-95ER40934 (UND), DE- FG02-94ER40834
(UMCP)]; Department of Science and Technology, Government of India
[IR/S2/PF-03/2003-II, IR/S2/PF-03/2003-III]
FX We thank Dr. Michael Albers for the helpful discussions about the
angular distribution analysis procedures. This work has been supported
in part by the U.S. National Science Foundation [Grants No. PHY-1068192
(UND) and No. PHY-1203100 (USNA)]; by the APS-IUSSTF Physics Student and
Post-doc Visitation Program; by the U.S. Department of Energy, Office of
Science, Office of Nuclear Physics, under Contracts No.
DE-AC02-06CH11357 (ANL), No. DE-FG02-95ER40934 (UND), and No. DE-
FG02-94ER40834 (UMCP); and by the Department of Science and Technology,
Government of India (Grants No. IR/S2/PF-03/2003-II and No.
IR/S2/PF-03/2003-III). This research used resources of ANL's ATLAS
facility, which is a DOE Office of Science User Facility.
NR 26
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U1 2
U2 5
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 FEB 23
PY 2015
VL 114
IS 8
AR 082501
DI 10.1103/PhysRevLett.114.082501
PG 6
WC Physics, Multidisciplinary
SC Physics
GA CE8DR
UT WOS:000352072100006
PM 25768759
ER
PT J
AU Basu, R
Garvey, A
Kinnamon, D
AF Basu, Rajratan
Garvey, Alfred
Kinnamon, Daniel
TI Effects of graphene on electro-optic response and ion-transport in a
nematic liquid crystal
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID CARBON NANOTUBES; BATIO3 NANOPARTICLES; ROTATIONAL VISCOSITY; TRANSIENT
CURRENT; DISPLAYS; DEVICES; LAYERS; CELLS; FIELD; SIZE
AB A small quantity of graphene, containing both monolayer and multilayer flakes, was doped in a nematic liquid crystal (LC), and the nematic electro-optic switching was found to be significantly faster in the LC + graphene hybrid than that of the pure LC. Additional studies revealed that the presence of graphene reduced the free ion concentration in the nematic media by ion-trapping process. The reduction of mobile ions in the LC was found to have subsequent impacts on the LC's conductivity and rotational viscosity, allowing the nematic director to respond quicker on switching the electric field on and off. (C) 2015 AIP Publishing LLC.
C1 [Basu, Rajratan; Garvey, Alfred; Kinnamon, Daniel] US Naval Acad, Dept Phys, Soft Matter & Nanomat Lab, Annapolis, MD 21402 USA.
RP Basu, R (reprint author), US Naval Acad, Dept Phys, Soft Matter & Nanomat Lab, Annapolis, MD 21402 USA.
EM basu@usna.edu
FU Office of Naval Research (Division 312: Electronics Sensors and Network
Research) [N0001414WX20791]
FX This work was supported by the Office of Naval Research (Division 312:
Electronics Sensors and Network Research) under Award No.
N0001414WX20791.
NR 62
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U1 2
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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 FEB 21
PY 2015
VL 117
IS 7
AR 074301
DI 10.1063/1.4908608
PG 5
WC Physics, Applied
SC Physics
GA CD5MC
UT WOS:000351130900016
ER
PT J
AU Scholz, P
Kaspi, VM
Lyne, AG
Stappers, BW
Bogdanov, S
Cordes, JM
Crawford, F
Ferdman, RD
Freire, PCC
Hessels, JWT
Lorimer, DR
Stairs, IH
Allen, B
Brazier, A
Camilo, F
Cardoso, RF
Chatterjee, S
Deneva, JS
Jenet, FA
Karako-Argaman, C
Knispel, B
Lazarus, P
Lee, KJ
van Leeuwen, J
Lynch, R
Madsen, EC
McLaughlin, MA
Ransom, SM
Siemens, X
Spitler, LG
Stovall, K
Swiggum, JK
Venkataraman, A
Zhu, WW
AF Scholz, P.
Kaspi, V. M.
Lyne, A. G.
Stappers, B. W.
Bogdanov, S.
Cordes, J. M.
Crawford, F.
Ferdman, R. D.
Freire, P. C. C.
Hessels, J. W. T.
Lorimer, D. R.
Stairs, I. H.
Allen, B.
Brazier, A.
Camilo, F.
Cardoso, R. F.
Chatterjee, S.
Deneva, J. S.
Jenet, F. A.
Karako-Argaman, C.
Knispel, B.
Lazarus, P.
Lee, K. J.
van Leeuwen, J.
Lynch, R.
Madsen, E. C.
McLaughlin, M. A.
Ransom, S. M.
Siemens, X.
Spitler, L. G.
Stovall, K.
Swiggum, J. K.
Venkataraman, A.
Zhu, W. W.
TI TIMING OF FIVE MILLISECOND PULSARS DISCOVERED IN THE PALFA SURVEY
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE pulsars: general; pulsars: individual (PSR J0557+1551, PSR J1850+0244,
PSR J1902+0300, PSR J1905+0453, PSR J1943+221)
ID RELATIVISTIC CELESTIAL MECHANICS; ACCRETION-INDUCED COLLAPSE;
BINARY-SYSTEMS; GRAVITATIONAL-WAVES; GALACTIC PLANE; SHAPIRO DELAY;
RADIO PULSARS; NEUTRON-STARS; EVOLUTION; LIMITS
AB We present the discovery of five millisecond pulsars (MSPs) from the PALFA Galactic plane survey using Arecibo. Four of these (PSRs J0557+1551, J1850+0244, J1902+0300, and J1943+2210) are binary pulsars whose companions are likely white dwarfs, and one (PSR J1905+0453) is isolated. Phase-coherent timing solutions, ranging from similar to 1 to similar to 3 yr in length, and based on observations from the Jodrell Bank and Arecibo telescopes, provide precise determinations of spin, orbital, and astrometric parameters. All five pulsars have large dispersion measures (>100 pc cm(-3), within the top 20% of all known Galactic field MSPs) and are faint (1.4 GHz flux density less than or similar to 0.1 mJy,within the faintest 5% of all known Galactic field MSPs), illustrating PALFA's ability to find increasingly faint, distant MSPs in the Galactic plane. In particular, PSR J1850+0244 has a dispersion measure of 540 pc cm(-3), the highest of all known MSPs. Such distant, faint MSPs are important input for accurately modeling the total Galactic MSP population.
C1 [Scholz, P.; Kaspi, V. M.; Ferdman, R. D.; Karako-Argaman, C.; Lynch, R.; Madsen, E. C.] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada.
[Lyne, A. G.; Stappers, B. W.] Univ Manchester, Sch Phys & Astron, Jodrell Bank Ctr Astrophys, Manchester M13 9PL, Lancs, England.
[Bogdanov, S.; Camilo, F.] Columbia Univ, Columbia Astrophys Lab, New York, NY 10027 USA.
[Cordes, J. M.; Brazier, A.; Chatterjee, S.] Cornell Univ, Dept Astron, Ithaca, NY 14853 USA.
[Crawford, F.] Franklin & Marshall Coll, Dept Phys & Astron, Lancaster, PA 17604 USA.
[Freire, P. C. C.; Lazarus, P.; Lee, K. J.] Max Planck Inst Radioastron, D-53121 Bonn, Germany.
[Hessels, J. W. T.; van Leeuwen, J.] Netherlands Inst Radio Astron, ASTRON, NL-7990 AA Dwingeloo, Netherlands.
[Hessels, J. W. T.; van Leeuwen, J.] Univ Amsterdam, Astron Inst Anton Pannekoek, NL-1098 XH Amsterdam, Netherlands.
[Lorimer, D. R.; Cardoso, R. F.; McLaughlin, M. A.; Swiggum, J. K.] W Virginia Univ, Dept Phys & Astron, Morgantown, WV 26506 USA.
[Stairs, I. H.; Zhu, W. W.] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z1, Canada.
[Allen, B.; Siemens, X.] Univ Wisconsin, Dept Phys, Milwaukee, WI 53211 USA.
[Allen, B.; Knispel, B.] Leibniz Univ Hannover, D-30167 Hannover, Germany.
[Allen, B.; Knispel, B.] Max Planck Inst Gravitat Phys, D-30167 Hannover, Germany.
[Brazier, A.] Cornell Univ, Cornell Ctr Adv Comp, Ithaca, NY 14853 USA.
[Deneva, J. S.] Naval Res Lab, Washington, DC 20375 USA.
[Jenet, F. A.; Spitler, L. G.] Univ Texas Brownsville, Ctr Gravitat Wave Astron, Brownsville, TX 78520 USA.
[Ransom, S. M.] NRAO, Charlottesville, VA 22903 USA.
[Stovall, K.] Univ New Mexico, Dept Phys & Astron, Albuquerque, NM 87131 USA.
[Venkataraman, A.] Arecibo Observ, Arecibo, PR 00612 USA.
RP Scholz, P (reprint author), McGill Univ, Dept Phys, 3600 Univ St, Montreal, PQ H3A 2T8, Canada.
EM pscholz@physics.mcgill.ca
OI Ransom, Scott/0000-0001-5799-9714; Allen, Bruce/0000-0003-4285-6256
FU National Science Foundation [AST-1100968, PHYS-PHY1104617]; NSERC
Alexander Graham Bell Canada Graduate Scholarship; NSERC Discovery Grant
and Accelerator Supplement; FQRNT Centre de Recherche en Astrophysique
du Quebec; R. Howard Webster Foundation Fellowship from the Canadian
Institute for Advanced Research (CIFAR); Canada Research Chairs Program;
Lorne Trottier Chair in Astrophysics and Cosmology; NWO Vidi fellowship;
ERC Starting Grant "DRAGNET" [337062]; European Research Council for the
ERC Starting Grant BEACON [279702]; IMPRS Bonn/Cologne; FQRNT B2; NSERC
Discovery Grant and Discovery Accelerator Supplement; Canadian Institute
for Advanced Research; Canada Foundation for Innovation (CFI);
NanoQuebec; RMGA; Fonds de recherche du Quebec-Nature et technologies
(FRQ-NT)
FX We thank the anonymous referee for their constructive comments. The
Arecibo Observatory is operated by SRI International under a cooperative
agreement with the National Science Foundation (AST-1100968), and in
alliance with Ana G. Mendez-Universidad Metropolitana, and the
Universities Space Research Association. P.S. acknowledges support from
an NSERC Alexander Graham Bell Canada Graduate Scholarship. V.M.K.
acknowledges support from an NSERC Discovery Grant and Accelerator
Supplement, the FQRNT Centre de Recherche en Astrophysique du Quebec, an
R. Howard Webster Foundation Fellowship from the Canadian Institute for
Advanced Research (CIFAR), the Canada Research Chairs Program and the
Lorne Trottier Chair in Astrophysics and Cosmology. J.W.T.H.
acknowledges funding from an NWO Vidi fellowship and ERC Starting Grant
"DRAGNET" (337062). P.C.C.F. and L.G.S. gratefully acknowledge financial
support by the European Research Council for the ERC Starting Grant
BEACON under contract No. 279702. P.L. acknowledges the support of IMPRS
Bonn/Cologne and FQRNT B2. Work at Cornell University was supported in
part by the National Science Foundation (PHYS-PHY1104617). Pulsar
research at UBC is supported by an NSERC Discovery Grant and Discovery
Accelerator Supplement, and by the Canadian Institute for Advanced
Research. Computations were made on the supercomputer Guillimin from
McGill University, managed by Calcul Quebec and Compute Canada. The
operation of this supercomputer is funded by the Canada Foundation for
Innovation (CFI), NanoQuebec, RMGA and the Fonds de recherche du
Quebec-Nature et technologies (FRQ-NT).
NR 61
TC 3
Z9 3
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 FEB 20
PY 2015
VL 800
IS 2
AR 123
DI 10.1088/0004-637X/800/2/123
PG 10
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA CB7CA
UT WOS:000349782500046
ER
PT J
AU Ajello, M
Gasparrini, D
Sanchez-Conde, M
Zaharijas, G
Gustafsson, M
Cohen-Tanugi, J
Dermer, CD
Inoue, Y
Hartmann, D
Ackermann, M
Bechtol, K
Franckowiak, A
Reimer, A
Romani, RW
Strong, AW
AF Ajello, M.
Gasparrini, D.
Sanchez-Conde, M.
Zaharijas, G.
Gustafsson, M.
Cohen-Tanugi, J.
Dermer, C. D.
Inoue, Y.
Hartmann, D.
Ackermann, M.
Bechtol, K.
Franckowiak, A.
Reimer, A.
Romani, R. W.
Strong, A. W.
TI THE ORIGIN OF THE EXTRAGALACTIC GAMMA-RAY BACKGROUND AND IMPLICATIONS
FOR DARK MATTER ANNIHILATION
SO ASTROPHYSICAL JOURNAL LETTERS
LA English
DT Article
DE cosmology: observations; dark matter; galaxies: active; galaxies: jets;
gamma rays: diffuse background; surveys
ID LARGE-AREA TELESCOPE; STAR-FORMING GALAXIES; COSMIC MEV; EMISSION;
CATALOG; SIGNAL; ANISOTROPIES; RADIATION; SPECTRUM; OBJECTS
AB The origin of the extragalactic.-ray background (EGB) has been debated for some time. The EGB comprises the.-ray emission from resolved and unresolved extragalactic sources, such as blazars, star-forming galaxies, and radio galaxies, as well as radiation from truly diffuse processes. This Letter focuses on the blazar source class, the most numerous detected population, and presents an updated luminosity function and spectral energy distribution model consistent with the blazar observations performed by the Fermi-Large Area Telescope (LAT). We show that blazars account for 50(-11)(+12)% of the EGB photons (>0.1 GeV), and that Fermi-LAT has already resolved similar to 70% of this contribution. Blazars, and in particular hard-spectrum sources such as BL Lacs, are responsible for most of the EGB emission above 100 GeV. We find that the extragalactic background light, which attenuates blazars' high-energy emission, is responsible for the high-energy cutoff observed in the EGB spectrum. Finally, we show that blazars, star-forming galaxies, and radio galaxies can naturally account for the amplitude and spectral shape of the background in the 0.1-820 GeV range, leaving only modest room for other contributions. This allows us to set competitive constraints on the dark matter annihilation cross section.
C1 [Ajello, M.; Hartmann, D.] Clemson Univ, Dept Phys & Astron, Kinard Lab Phys, Clemson, SC 29634 USA.
[Gasparrini, D.] Agenzia Spaziale Italiana ASI, Sci Data Ctr, I-00133 Rome, Italy.
[Gasparrini, D.] Osserv Astron Roma, INAF, I-00040 Rome, Italy.
[Sanchez-Conde, M.; Franckowiak, A.; Romani, R. W.] Stanford Univ, WW Hansen Expt Phys Lab, Kavli Inst Particle Astrophys & Cosmol, Dept Phys, Stanford, CA 94305 USA.
[Sanchez-Conde, M.; Franckowiak, A.; Romani, R. W.] Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA.
[Sanchez-Conde, M.] Stockholm Univ, Dept Phys, AlbaNova, SE-10691 Stockholm, Sweden.
[Sanchez-Conde, M.] AlbaNova, Oskar Klein Ctr Cosmoparticle Phys, SE-10691 Stockholm, Sweden.
[Zaharijas, G.] Ist Nazl Fis Nucl, Sez Trieste, I-34127 Trieste, Italy.
[Zaharijas, G.] Univ Trieste, I-34127 Trieste, Italy.
[Zaharijas, G.] Abdus Salam Int Ctr Theoret Phys, I-34151 Trieste, Italy.
[Zaharijas, G.] Univ Nova Gorica, Lab Astroparticle Phys, SI-5000 Nova Gorica, Slovenia.
[Gustafsson, M.] ULB, Serv Phys Theor, B-1050 Brussels, Belgium.
[Gustafsson, M.] Inst Theoret Phys, D-37077 Gottingen, Germany.
[Cohen-Tanugi, J.] Univ Montpellier 2, Lab Univers & Particules Montpellier, CNRS, IN2P3, Montpellier, France.
[Dermer, C. D.] Naval Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Inoue, Y.] Japan Aerosp Explorat Agcy, Inst Space & Astronaut Sci, Chuo Ku, Sagamihara, Kanagawa 2525210, Japan.
[Ackermann, M.] Deutsch Elektronen Synchrotron DESY, D-15738 Zeuthen, Germany.
[Bechtol, K.] Univ Chicago, Kavli Inst Cosmol Phys, Chicago, IL 60637 USA.
[Reimer, A.] Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria.
[Reimer, A.] Leopold Franzens Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria.
[Strong, A. W.] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany.
RP Ajello, M (reprint author), Clemson Univ, Dept Phys & Astron, Kinard Lab Phys, Clemson, SC 29634 USA.
EM majello@clemson.edu; gasparrini@asdc.asi.it; sanchezconde@fysik.su.se;
gzaharijas@ung.si; mgustafs@ulb.ac.be
OI Zaharijas, Gabrijela/0000-0001-8484-7791; Inoue,
Yoshiyuki/0000-0002-7272-1136; Sanchez-Conde,
Miguel/0000-0002-3849-9164; Ajello, Marco/0000-0002-6584-1703; Hartmann,
Dieter/0000-0002-8028-0991; Gasparrini, Dario/0000-0002-5064-9495
FU NASA [NNH09ZDA001N]; Chief of Naval Research; Belgian Science Policy
[IAP VI/11]; IISN; ARC project
FX The Fermi-LAT Collaboration acknowledges support for LAT development,
operation and data analysis from NASA and DOE (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). Science analysis support
in the operations phase from INAF (Italy) and CNES (France) is also
gratefully acknowledged. M.A. and M.A.S.C. acknowledge support from NASA
grant NNH09ZDA001N for the study of the extragalactic gamma-ray
background. The work of C.D.D. is supported by the Chief of Naval
Research. M.G. is supported by the Belgian Science Policy (IAP VI/11),
the IISN, and the ARC project.
NR 40
TC 52
Z9 52
U1 0
U2 5
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 FEB 20
PY 2015
VL 800
IS 2
AR L27
DI 10.1088/2041-8205/800/2/L27
PG 7
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA CB5UK
UT WOS:000349692900008
ER
PT J
AU Tsyshevsky, R
Pagoria, P
Zhang, MX
Racoveanu, A
DeHope, A
Parrish, D
Kuklja, MM
AF Tsyshevsky, Roman
Pagoria, Philip
Zhang, Maoxi
Racoveanu, Ana
DeHope, Alan
Parrish, Damon
Kuklja, Maija M.
TI Searching for Low-Sensitivity Cast-Melt High-Energy-Density Materials:
Synthesis, Characterization, and Decomposition Kinetics of
3,4-Bis(4-nitro-1,2,5-oxadiazol-3-yl)-1,2,5-oxadiazole-2-oxide
SO JOURNAL OF PHYSICAL CHEMISTRY C
LA English
DT Article
ID BOND-DISSOCIATION ENERGIES; GAS-PHASE DECOMPOSITION; WAVE BASIS-SET;
THERMAL-DECOMPOSITION; AB-INITIO; MOLECULAR MATERIALS; UNIMOLECULAR
DECOMPOSITION; HYDROGEN-TRANSFER; MECHANISMS; EXPLOSIVES
AB The most comprehensive approach to analyze and characterize energetic materials is suggested and applied to enable rational, rigorous design of novel materials and targeted improvements of existing materials to achieve desired properties. We report synthesis, characterization of the structure and sensitivity, and modeling of thermal and electronic stability of the energetic, heterocyclic compound, 3,4-bis(4-nitro-1,2,5-oxadiazol-3-yl)-1,2,5-oxadiazole-2-oxide (BNFF). The proposed novel, relatively simple synthesis of BNFF in excellent yields allows for an efficient scale up. Performing careful characterization indicates that these materials offer an unusual combination of properties and exhibit a relatively high energy density, high and controllable stability against decomposition, low melting temperature, and low sensitivity to initiation of detonation. First-principles calculations of activation barriers and reaction rate constants reveal the decomposition scenarios that govern the thermal stability and chemical behavior of BNFF, which appreciably differ from conventional nitro compounds. Details of the electronic structure and calculated electronic properties suggest that BNFF is an excellent candidate energetic material on its own and an attractive ingredient of modern energetic formulations to improve their stability and enable highly controllable chemical decomposition.
C1 [Tsyshevsky, Roman; Kuklja, Maija M.] Univ Maryland, Mat Sci & Engn Dept, College Pk, MD 20742 USA.
[Pagoria, Philip; Zhang, Maoxi; Racoveanu, Ana; DeHope, Alan] Lawrence Livermore Natl Lab, Energet Mat Ctr, Livermore, CA 94550 USA.
[Parrish, Damon] Naval Res Lab, Washington, DC 20375 USA.
RP Kuklja, MM (reprint author), Univ Maryland, Mat Sci & Engn Dept, College Pk, MD 20742 USA.
EM mkukla@umd.edu
FU U.S. Department of Energy by the Lawrence Livermore National Laboratory
[DE-AC52-07NA27344]; ONR [N00014-12-1-0529]; NSF; NSF XSEDE
[DMR-130077]; DOE NERSC [DE-AC02-05CH11231]; Office of the Director of
National Science Foundation under IRD program
FX Work performed under the auspices of the U.S. Department of Energy by
the Lawrence Livermore National Laboratory under Contract
DE-AC52-07NA27344. This research is also supported in part by ONR (Grant
N00014-12-1-0529) and NSF. We used NSF XSEDE resources (Grant
DMR-130077) and DOE NERSC resources (Contract DE-AC02-05CH11231). MMK is
grateful to the Office of the Director of National Science Foundation
for support under the IRD program.
NR 89
TC 10
Z9 12
U1 3
U2 27
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 FEB 19
PY 2015
VL 119
IS 7
BP 3509
EP 3521
DI 10.1021/jp5118008
PG 13
WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science,
Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA CB9HK
UT WOS:000349942400009
ER
PT J
AU Jost, K
Durkin, DP
Haverhals, LM
Brown, EK
Langenstein, M
De Long, HC
Trulove, PC
Gogotsi, Y
Dion, G
AF Jost, Kristy
Durkin, David P.
Haverhals, Luke M.
Brown, E. Kathryn
Langenstein, Matthew
De Long, Hugh C.
Trulove, Paul C.
Gogotsi, Yury
Dion, Genevieve
TI Natural Fiber Welded Electrode Yarns for Knittable Textile
Supercapacitors
SO ADVANCED ENERGY MATERIALS
LA English
DT Article
DE supercapacitors natural fibers; welding; smart textiles; wearable
electronics
ID ENERGY-STORAGE; ELECTROCHEMICAL CAPACITORS; CARBON; COTTON
AB Natural fiber welded (NFW) yarns embedded with porous carbon materials are described for applications as electrodes in textile electrochemical capacitors. With this fabrication technique, many kinds of carbons can be embedded into cellulose based yarns and subsequently knitted into full fabrics on industrial knitting machines. Yarns welded with carbon and stainless steel have device capacitances as high as 37 mF cm(-1), one of the highest reported values for carbon-based yarns. The versatility of this technique to weld any commercially available cellulose yarn with any micro- or nanocarbon means properties can be tuned for specific applications. Most importantly, it is found that despite having full flexibility, increased strength, and good electrochemical performance, not all of the electrode yarns are suitable for knitting. Therefore, it is recommended that all works reporting on fiber/yarn capacitors for wearables attempt processing into full fabrics.
C1 [Jost, Kristy; Langenstein, Matthew; Gogotsi, Yury] Drexel Univ, AJ Drexel Nanomat Inst, Philadelphia, PA 19104 USA.
[Jost, Kristy; Langenstein, Matthew; Gogotsi, Yury] Drexel Univ, Dept Mat Sci & Engn, Philadelphia, PA 19104 USA.
[Jost, Kristy; Dion, Genevieve] Drexel Univ, ExCITe Ctr, Shima Seiki Haute Technol Lab, Philadelphia, PA 19104 USA.
[Jost, Kristy; Dion, Genevieve] Drexel Univ, Antoinette Westphal Coll Media Arts & Design, Philadelphia, PA 19104 USA.
[Durkin, David P.; Brown, E. Kathryn; Trulove, Paul C.] US Naval Acad, Dept Chem, Annapolis, MD 21402 USA.
[Haverhals, Luke M.] Bradley Univ, Mund Lagowski Dept Chem, Peoria, IL 61625 USA.
[De Long, Hugh C.] Air Force Off Sci Res, Complex Mat & Devices Dept, Arlington, VA USA.
RP Gogotsi, Y (reprint author), Drexel Univ, AJ Drexel Nanomat Inst, Philadelphia, PA 19104 USA.
EM gogotsi@drexel.edu; gogotsi@drexel.edu; gdion@drexel.edu
FU Department of Defense National Science and Engineering Graduate
Fellowship (DoD-NDSEG); U.S. Air Force Office of Scientific Research
FX K.J. acknowledges support from the Department of Defense National
Science and Engineering Graduate Fellowship (DoD-NDSEG). D.P.D, L.M.H,
E.K.B, H.C.D, and P.C.T. are grateful to the U.S. Air Force Office of
Scientific Research for funding their portion of this work and the U.S.
Naval Academy for providing the facilities. Any opinions, findings and
conclusions or recommendations expressed in this material are those of
the authors and do not necessarily reflect the views of the U.S. Air
Force or the U.S. Navy.
NR 35
TC 28
Z9 28
U1 11
U2 117
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA BOSCHSTRASSE 12, D-69469 WEINHEIM, GERMANY
SN 1614-6832
EI 1614-6840
J9 ADV ENERGY MATER
JI Adv. Energy Mater.
PD FEB 18
PY 2015
VL 5
IS 4
AR 1401286
DI 10.1002/aenm.201401286
PG 8
WC Chemistry, Physical; Energy & Fuels; Materials Science,
Multidisciplinary; Physics, Applied; Physics, Condensed Matter
SC Chemistry; Energy & Fuels; Materials Science; Physics
GA CC7RM
UT WOS:000350566000004
ER
PT J
AU Yuan, EC
Alderson, DL
Stromberg, S
Carlson, JM
AF Yuan, Edwin C.
Alderson, David L.
Stromberg, Sean
Carlson, Jean M.
TI Optimal Vaccination in a Stochastic Epidemic Model of Two
Non-Interacting Populations
SO PLOS ONE
LA English
DT Article
ID STRATEGIES; DYNAMICS; DISEASE; FOOT; SIR; UK
AB Developing robust, quantitative methods to optimize resource allocations in response to epidemics has the potential to save lives and minimize health care costs. In this paper, we develop and apply a computationally efficient algorithm that enables us to calculate the complete probability distribution for the final epidemic size in a stochastic Susceptible-Infected-Recovered (SIR) model. Based on these results, we determine the optimal allocations of a limited quantity of vaccine between two non-interacting populations. We compare the stochastic solution to results obtained for the traditional, deterministic SIR model. For intermediate quantities of vaccine, the deterministic model is a poor estimate of the optimal strategy for the more realistic, stochastic case.
C1 [Yuan, Edwin C.; Stromberg, Sean; Carlson, Jean M.] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA.
[Alderson, David L.] Naval Postgrad Sch, Dept Operat Res, Monterey, CA USA.
[Yuan, Edwin C.] Stanford Univ, Dept Appl Phys, Stanford, CA 94305 USA.
RP Carlson, JM (reprint author), Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA.
EM carlson@physics.ucsb.edu
FU Office of Naval Research MURI [DMR0606092]; David and Lucile Packard
Foundation; Stansberry Fellowship through the CCS SURF foundation;
Institute for Collaborative Biotechnologies from the U.S. Army Research
Office [W911NF-09-D-0001]
FX This work was supported by an Office of Naval Research MURI Grant No.
DMR0606092, the David and Lucile Packard Foundation, the Stansberry
Fellowship through the CCS SURF foundation, and the Institute for
Collaborative Biotechnologies through contract no. W911NF-09-D-0001 from
the U.S. Army Research Office. The funders had no role in study design,
data collection and analysis, decision to publish, or preparation of the
manuscript.
NR 21
TC 3
Z9 3
U1 2
U2 13
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 FEB 17
PY 2015
VL 10
IS 2
AR e0115826
DI 10.1371/journal.pone.0115826
PG 25
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA CC4KQ
UT WOS:000350322700006
PM 25688857
ER
PT J
AU Smith, RW
Tobias, C
Vlahos, P
Cooper, C
Ballentine, M
Ariyarathna, T
Fallis, S
Groshens, TJ
AF Smith, Richard W.
Tobias, Craig
Vlahos, Penny
Cooper, Christopher
Ballentine, Mark
Ariyarathna, Thivanka
Fallis, Stephen
Groshens, Thomas J.
TI Mineralization of RDX-Derived Nitrogen to N-2 via Denitrification in
Coastal Marine Sediments
SO ENVIRONMENTAL SCIENCE & TECHNOLOGY
LA English
DT Article
ID NATURAL MICROBIAL ASSEMBLAGES; ADVANCED OXIDATION PROCESSES;
HEXAHYDRO-1,3,5-TRINITRO-1,3,5-TRIAZINE RDX; ANAEROBIC SLUDGE;
EXPLOSIVES; BIOTRANSFORMATION; BIODEGRADATION; DEGRADATION; NITRAMINE;
FATE
AB Hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) is a common constituent of military explosives. Despite RDX contamination at numerous U.S. military facilities and its mobility to aquatic systems, the fate of RDX in marine systems remains largely unknown. Here, we provide RDX mineralization pathways and rates in seawater and sediments, highlighting for the first time the importance of the denitrification pathway in determining the fate of RDX-derived N. N-15 nitro group labeled RDX (N-15-[RDX], 50 atom %) was spiked into a mesocosm simulating shallow marine conditions of coastal Long Island Sound, and the N-15 enrichment of N-2 (delta N-15(2)) was monitored via gas bench isotope ratio mass spectrometry (GB-IRMS) for 21 days. The N-15 tracer data were used to model RDX mineralization within the context of the broader coastal marine N cycle using a multicompartment time-stepping model. Estimates of RDX mineralization rates based on the production and gas transfer of (N2O)-N-15 and N-15(2) ranged from 0.8 to 10.3 mu mol d(-1). After 22 days, 11% of the added RDX had undergone mineralization, and 29% of the total removed RDX-N was identified as N-2. These results demonstrate the important consideration of sediment microbial communities in management strategies addressing cleanup of contaminated coastal sites by military explosives.
C1 [Smith, Richard W.; Tobias, Craig; Vlahos, Penny; Cooper, Christopher; Ballentine, Mark; Ariyarathna, Thivanka] Univ Connecticut, Dept Marine Sci, Groton, CT 06340 USA.
[Smith, Richard W.] Global Aquat Res LLC, Sodus, NY 14551 USA.
[Fallis, Stephen; Groshens, Thomas J.] Naval Air Warfare Ctr, Weap Div, Div Chem, China Lake, CA 93555 USA.
RP Smith, RW (reprint author), Univ Connecticut, Dept Marine Sci, 1080 Shennocossett Rd, Groton, CT 06340 USA.
EM richard.2.smith@uconn.edu
FU Department of Defense SERDP [ER-2122]
FX This work was funded by Department of Defense SERDP under project ID
ER-2122. We would like to thank D. Cady and V. Rollinson for analytical
support and performing the argon slug experiments.
NR 61
TC 3
Z9 3
U1 3
U2 19
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 FEB 17
PY 2015
VL 49
IS 4
BP 2180
EP 2187
DI 10.1021/es505074v
PG 8
WC Engineering, Environmental; Environmental Sciences
SC Engineering; Environmental Sciences & Ecology
GA CB7KT
UT WOS:000349806400026
PM 25594316
ER
PT J
AU Ganesan, A
Mesner, O
Okulicz, JF
O'Bryan, T
Deiss, RG
Lalani, T
Whitman, TJ
Weintrob, AC
Macalino, G
Agan, BK
AF Ganesan, Anuradha
Mesner, Octavio
Okulicz, Jason F.
O'Bryan, Thomas
Deiss, Robert G.
Lalani, Tahaniyat
Whitman, Timothy J.
Weintrob, Amy C.
Macalino, Grace
Agan, Brian K.
CA Infect Dis Clinical Res Program
TI A Single Dose of Benzathine Penicillin G Is as Effective as Multiple
Doses of Benzathine Penicillin G for the Treatment of HIV-Infected
Persons With Early Syphilis
SO CLINICAL INFECTIOUS DISEASES
LA English
DT Article
DE treatment response; benzathine penicillin G; HIV-infected persons; early
syphilis
ID ANTIRETROVIRAL THERAPY; CEREBROSPINAL-FLUID; LATENT SYPHILIS;
NEUROSYPHILIS; FAILURE; ACCESS; CARE; ERA; CSF
AB Background. Treatment guidelines recommend the use of a single dose of benzathine penicillin G (BPG) for treating early syphilis in human immunodeficiency virus (HIV)-infected persons. However, data supporting this recommendation are limited. We examined the efficacy of single-dose BPG in the US Military HIV Natural History Study.
Methods. Subjects were included if they met serologic criteria for syphilis (ie, a positive nontreponemal test [NTr] confirmed by treponemal testing). Response to treatment was assessed at 13 months and was defined by a >= 4-fold decline in NTr titer. Multivariate Cox proportional hazard regression models were utilized to examine factors associated with treatment response.
Results. Three hundred fifty subjects (99% male) contributed 478 cases. Three hundred ninety-three cases were treated exclusively with BPG (141 with 1 dose of BPG). Treatment response was the same among those receiving 1 or >1 dose of BPG (92%). In a multivariate analysis, older age (hazard ratio [HR], 0.82 per 10-year increase; 95% confidence interval [CI],.73-.93) was associated with delayed response to treatment. Higher pretreatment titers (reference NTr titer <1:64; HR, 1.94 [95% CI, 1.58-2.39]) and CD4 counts (HR, 1.07 for every 100-cell increase [95% CI, 1.01-1.12]) were associated with a faster response to treatment. Response was not affected by the number of BPG doses received (reference, 1 dose of BPG; HR, 1.11 [95% CI,.89-1.4]).
Conclusions. In this cohort, additional BPG doses did not affect treatment response. Our data support the current recommendations for the use of a single dose of BPG to treat HIV-infected persons with early syphilis.
C1 [Ganesan, Anuradha; Mesner, Octavio; Okulicz, Jason F.; O'Bryan, Thomas; Deiss, Robert G.; Lalani, Tahaniyat; Whitman, Timothy J.; Weintrob, Amy C.; Macalino, Grace; Agan, Brian K.] Uniformed Serv Univ Hlth Sci, Infect Dis Clin Res Program, Bethesda, MD 20814 USA.
[Ganesan, Anuradha; Whitman, Timothy J.; Weintrob, Amy C.] Walter Reed Natl Mil Med Ctr, Washington, DC USA.
[Okulicz, Jason F.; O'Bryan, Thomas] San Antonio Mil Med Ctr, San Antonio, TX USA.
[Deiss, Robert G.] Naval Med Ctr San Diego, San Diego, CA USA.
[Lalani, Tahaniyat] Naval Med Ctr Portsmouth, Portsmouth, VA 23708 USA.
RP Ganesan, A (reprint author), Walter Reed Natl Mil Med Ctr, Div Infect Dis, 8901 Wisconsin Ave,Bldg 7,Rm 1416, Bethesda, MD 20889 USA.
EM anuradha.ganesan.ctr@health.mil
OI Agan, Brian/0000-0002-5114-1669
FU Infectious Disease Clinical Research Program, a Department of Defense
[IDCRP-015]; National Institute of Allergy and Infectious Diseases,
National Institutes of Health [Y1-AI-5072]
FX Support for this work (IDCRP-015) was provided by the Infectious Disease
Clinical Research Program, a Department of Defense program executed
through the Uniformed Services University of the Health Sciences. This
project has been funded in whole, or in part, with federal funds from
the National Institute of Allergy and Infectious Diseases, National
Institutes of Health (interagency agreement Y1-AI-5072).
NR 25
TC 8
Z9 8
U1 1
U2 5
PU OXFORD UNIV PRESS INC
PI CARY
PA JOURNALS DEPT, 2001 EVANS RD, CARY, NC 27513 USA
SN 1058-4838
EI 1537-6591
J9 CLIN INFECT DIS
JI Clin. Infect. Dis.
PD FEB 15
PY 2015
VL 60
IS 4
BP 653
EP 660
DI 10.1093/cid/ciu888
PG 8
WC Immunology; Infectious Diseases; Microbiology
SC Immunology; Infectious Diseases; Microbiology
GA CB6VI
UT WOS:000349764400023
PM 25389249
ER
PT J
AU Ranasinghe, S
Ansumana, R
Lamin, JM
Bockarie, AS
Bangura, U
Buanie, JAG
Stenger, DA
Jacobsen, KH
AF Ranasinghe, Shamika
Ansumana, Rashid
Lamin, Joseph M.
Bockarie, Alfred S.
Bangura, Umaru
Buanie, Jacob A. G.
Stenger, David A.
Jacobsen, Kathryn H.
TI Attitudes toward home-based malaria testing in rural and urban Sierra
Leone
SO MALARIA JOURNAL
LA English
DT Article
DE Malaria; Rapid diagnostic test; Diagnostic test kits; Community health
services; Community health worker; Sierra Leone; West Africa
ID RAPID DIAGNOSTIC-TESTS; COMMUNITY CASE-MANAGEMENT; COMBINATION THERAPY;
COST-EFFECTIVENESS; HEALTH WORKERS; ACCEPTABILITY; WILLINGNESS;
MICROSCOPY; BARRIERS; AFRICA
AB Background: The purpose of this study was to examine malaria testing practices and preferences in Bo, Sierra Leone, and to ascertain interest in and willingness to take a home-based rapid diagnostic test administered by a community health volunteer (CHV) or a trained family member rather than travelling to a clinical facility for laboratory-based testing.
Methods: A population-based, cross-sectional survey of 667 randomly-sampled rural households and 157 urban households was conducted in December 2013 and January 2014.
Results: Among rural residents, 69% preferred a self/family-or CHV-conducted home-based malaria test and 20% preferred a laboratory-based test (with others indicating no preference). Among urban residents, these numbers were 38% and 44%, respectively. If offered a home-based test, 28% of rural residents would prefer a self/family-conducted test and 68% would prefer a CHV-assisted test. For urban residents, these numbers were 21% and 77%. In total, 36% of rural and 63% of urban residents reported usually taking a diagnostic test to confirm suspected malaria. The most common reasons for not seeking malaria testing were the cost of testing, waiting to see if the fever resolved on its own, and not wanting to travel to a clinical facility for a test. In total, 32% of rural and 27% of urban participants were very confident they could perform a malaria test on themselves or a family member without assistance, 50% of rural and 62% of urban participants were very confident they could perform a test after training, and 56% of rural and 33% of urban participants said they would pay more for a home-based test than a laboratory-based test.
Conclusion: Expanding community case management of malaria to include home testing by CHVs and family members may increase the proportion of individuals with febrile illnesses who confirm a positive diagnosis prior to initiating treatment.
C1 [Ranasinghe, Shamika; Jacobsen, Kathryn H.] George Mason Univ, Dept Global & Community Hlth, Fairfax, VA 22030 USA.
[Ansumana, Rashid; Lamin, Joseph M.; Bockarie, Alfred S.; Bangura, Umaru; Buanie, Jacob A. G.] Mercy Hosp Res Lab, Bo, Sierra Leone.
[Ansumana, Rashid; Bockarie, Alfred S.] Njala Univ, Bo, Sierra Leone.
[Stenger, David A.] US Navy, Res Lab, Washington, DC 20375 USA.
[Ansumana, Rashid] Univ Liverpool, Liverpool Sch Trop Med, Liverpool L3 5QA, Merseyside, England.
RP Jacobsen, KH (reprint author), George Mason Univ, Dept Global & Community Hlth, 4400 Univ Dr 5B7, Fairfax, VA 22030 USA.
EM kjacobse@gmu.edu
RI Jacobsen, Kathryn/B-5857-2008;
OI Jacobsen, Kathryn/0000-0002-4198-6246; Ranasinghe,
Shamika/0000-0001-5884-6541
FU Joint Science and Technology Office, Defense Threat Reduction Agency
FX Funding for this project was provided by Joint Science and Technology
Office, Defense Threat Reduction Agency.
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U1 0
U2 4
PU BIOMED CENTRAL LTD
PI LONDON
PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND
SN 1475-2875
J9 MALARIA J
JI Malar. J.
PD FEB 15
PY 2015
VL 14
AR 80
DI 10.1186/s12936-015-0582-x
PG 9
WC Infectious Diseases; Parasitology; Tropical Medicine
SC Infectious Diseases; Parasitology; Tropical Medicine
GA CB7IC
UT WOS:000349799200001
PM 25880198
ER
PT J
AU Chun, C
Neta, B
AF Chun, Changbum
Neta, Beny
TI An analysis of a family of Maheshwari-based optimal eighth order methods
SO APPLIED MATHEMATICS AND COMPUTATION
LA English
DT Article
DE Iterative methods; Order of convergence; Basin of attraction; Extraneous
fixed points; Weight functions
ID NONLINEAR EQUATIONS; MULTIPLE ROOTS; DYNAMICS; ATTRACTION; BASINS;
ITERATION
AB In this paper we analyze an optimal eighth-order family of methods based on Maheshwari's fourth order method. This family of methods uses a weight function. We analyze the family using the information on the extraneous fixed points. Two measures of closeness of an extraneous points set to the imaginary axis are considered and applied to the members of the family to find its best performer. The results are compared to a modified version of Wang-Liu method. Published by Elsevier Inc.
C1 [Chun, Changbum] Sungkyunkwan Univ, Dept Math, Suwon 440746, South Korea.
[Neta, Beny] Naval Postgrad Sch, Dept Appl Math, Monterey, CA 93943 USA.
RP Neta, B (reprint author), Naval Postgrad Sch, Dept Appl Math, Monterey, CA 93943 USA.
EM cbchun@skku.edu; bneta@nps.edu
FU National Research Foundation of Korea (NRF) - Ministry of Education
[NRF-2013R1A1A2005012]
FX This research was supported by Basic Science Research Program through
the National Research Foundation of Korea (NRF) funded by the Ministry
of Education (NRF-2013R1A1A2005012).
NR 26
TC 4
Z9 4
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 FEB 15
PY 2015
VL 253
BP 294
EP 307
DI 10.1016/j.amc.2014.12.064
PG 14
WC Mathematics, Applied
SC Mathematics
GA CB1BV
UT WOS:000349362400027
ER
PT J
AU Marras, S
Giraldo, FX
AF Marras, Simone
Giraldo, Francis X.
TI A parameter-free dynamic alternative to hyper-viscosity for coupled
transport equations: Application to the simulation of 3D squall lines
using spectral elements
SO JOURNAL OF COMPUTATIONAL PHYSICS
LA English
DT Article
DE Residual-based stabilization; Variational multiscalemethod; VMS; VMM;
Crosswind discontinuity capturing; Dynamic artificial diffusion;
Hyper-viscosity; Spectral element method; Monotonicity-preserving
high-order methods; Stabilization of spectral elements; Deep convection;
Kessler microphysics
ID DIFFUSION EQUATION; CONVECTION; STABILIZATION; FORMULATION; MODELS;
FLOWS; SUPG
AB The stabilization of high order spectral elements to solve the transport equations for tracers in the atmosphere remains an active topic of research among atmospheric modelers. This paper builds on our previous work on variational multiscale stabilization (VMS) and discontinuity capturing (DC) (Marras et al. (2012) [7]) and shows the applicability of VMS+DC to realistic atmospheric problems that involve physics coupling with phase change in the simulation of 3D deep convection. We show that the VMS+DC approach is a robust technique that can damp the high order modes characterizing the spectral element solution of complex coupled transport problems. The method has important properties that techniques of more common use often lack: 1) it is free of a user-defined parameter, 2) it is anisotropic in that it only acts along the flow direction, 3) it is numerically consistent, and 4) it can improve the monotonicity of high-order spectral elements. The proposed method is assessed by comparing the results against those obtained with a fourth-order hyper-viscosity programmed in the same code. The main conclusion that arises is that tuning can be fully avoided without loss of accuracy if the dissipative scheme is properly designed. Finally, the cost of parallel communication is that of a second order operator which means that fewer communications are required by VMS+DC than by a hyper-viscosity method; fewer communications translate into a faster and more scalable code, which is of vital importance as we approach the exascale range of computing. (C) 2014 Elsevier Inc. All rights reserved.
C1 [Marras, Simone; Giraldo, Francis X.] Naval Postgrad Sch, Dept Appl Math, Monterey, CA 93943 USA.
RP Marras, S (reprint author), Naval Postgrad Sch, Dept Appl Math, 833 Dyer Rd,Spanagel SP249A, Monterey, CA 93943 USA.
EM smarras1@nps.edu; fxgirald@nps.edu
RI Marras, Simone/K-9155-2016
OI Marras, Simone/0000-0002-7498-049X
FU Office of Naval Research [PE-0602435N]; National Science Foundation
(Division of Mathematical Sciences) [121670]
FX The authors are thankful to Dr. Hilary Weller (U. Reading, UK), Dr.
Guillaume Houzeaux (Barcelona Supercomputing Center, Spain), and one
anonymous reviewer for important inputs that helped improve this
article. The authors gratefully acknowledge the support of the Office of
Naval Research through program element PE-0602435N, the National Science
Foundation (Division of Mathematical Sciences) through program element
121670. The work of the first author was carried out through the
National Research Council (NRC) Research Associateship Programs of the
National Academies.
NR 26
TC 3
Z9 3
U1 1
U2 6
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0021-9991
EI 1090-2716
J9 J COMPUT PHYS
JI J. Comput. Phys.
PD FEB 15
PY 2015
VL 283
BP 360
EP 373
DI 10.1016/j.jcp.2014.11.046
PG 14
WC Computer Science, Interdisciplinary Applications; Physics, Mathematical
SC Computer Science; Physics
GA AY2GQ
UT WOS:000347407300019
ER
PT J
AU Casalini, R
Fragiadakis, D
Roland, CM
AF Casalini, R.
Fragiadakis, D.
Roland, C. M.
TI Dynamic correlation length scales under isochronal conditions
SO JOURNAL OF CHEMICAL PHYSICS
LA English
DT Article
ID GLASS-FORMING LIQUIDS; SUPERCOOLED LIQUIDS; ALPHA-RELAXATION; GROWING
LENGTH; TRANSITION; PRESSURE; TIME; MOLECULES; POLYMERS; FORMERS
AB The origin of the dramatic changes in the behavior of liquids as they approach their vitreous state-increases of many orders of magnitude in dynamic time scales and transport properties-is a major unsolved problem in condensed matter. These changes are accompanied by greater dynamic heterogeneity, which refers to both spatial variation and spatial correlation of molecular mobilities. The question is whether the changing dynamics are coupled to this heterogeneity; that is, does the latter cause the former? To address this, we carried out the first nonlinear dielectric experiments at elevated hydrostatic pressures on two liquids, to measure the third-order harmonic component of their susceptibilities. We extract from this the number of dynamically correlated molecules for various state points and find that the dynamic correlation volume for non-associated liquids depends primarily on the relaxation time, sensibly independent of temperature and pressure. We support this result by molecular dynamic simulations showing that the maximum in the four-point dynamic susceptibility of density fluctuations is essentially invariant along isochrones for molecules that do not form hydrogen bonds. Our findings are consistent with dynamic cooperativity serving as the principal control parameter for the slowing down of molecular motions in supercooled materials.
C1 [Casalini, R.; Fragiadakis, D.; 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.
FU Office of Naval Research
FX This work was supported by the Office of Naval Research. We thank R.
Richert for informative discussions on nonlinear dielectric
spectroscopy.
NR 58
TC 11
Z9 11
U1 2
U2 28
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 0021-9606
EI 1089-7690
J9 J CHEM PHYS
JI J. Chem. Phys.
PD FEB 14
PY 2015
VL 142
IS 6
AR 064504
DI 10.1063/1.4907371
PG 7
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA CB7ZH
UT WOS:000349847000041
PM 25681920
ER
PT J
AU Fuller, ME
Schaefer, CE
Andaya, C
Fallis, S
AF Fuller, Mark E.
Schaefer, Charles E.
Andaya, Christina
Fallis, Steve
TI Production of particulate Composition B during simulated weathering of
larger detonation residues
SO JOURNAL OF HAZARDOUS MATERIALS
LA English
DT Article
DE Composition B; Explosives; Weathering, Microscale particles; RDX; TNT
ID SATURATED POROUS-MEDIA; ENERGETIC RESIDUES; PARTICLE-SIZE; TRANSPORT;
DISSOLUTION; SOIL; SCALE
AB Explosives and energetics continue to be prominent contaminants on many military installations. This research was undertaken to understand the extent to which microscale (10's of mu m) particles are produced when macroscale residues are weathered by artificial precipitation. Initial experiments, in which artificial rainwater was applied drip-wise to single chunks of Composition B detonation residues from multiple heights, confirmed that microscale particles were produced during precipitation-driven aging, with 30% of the explosive mass collected detected as particulate Composition B (e.g., particles >0.45 mu m in diameter). Follow-on experiments, during which multiple cm-sized residue chunks were subjected to realistic simulated precipitation, demonstrated an initial large pulse of particulate Composition B, followed by sustained production of microscale particles that represented 15-20% of recovered explosives. These findings indicate that the effective footprint of detonation residues likely increases as particulates are produced by the production and spreading of microscale particles across the soil surface. Combined with results published elsewhere that microscale particles can move into porous media to become a distributed source term, these findings point to the need for inclusion of these processes in explosive contaminant fate and transport modeling. (C) 2014 Elsevier B.V. All rights reserved.
C1 [Fuller, Mark E.; Schaefer, Charles E.; Andaya, Christina] CB&I Fed Serv, Lawrenceville, NJ 08648 USA.
[Fallis, Steve] US Navy, Air Warfare Ctr, Weap Div, China Lake, CA 93555 USA.
RP Fuller, ME (reprint author), CB&I Fed Serv, 17 Princess Rd, Lawrenceville, NJ 08648 USA.
EM mark.fuller@cbifederalservices.com
FU Strategic Environmental Research and Development Program (SERDP)
[W912HQ-09-C0012]
FX This project was supported by the Strategic Environmental Research and
Development Program (SERDP) under contract W912HQ-09-C0012. We thank the
Naval Explosive Ordnance Disposal Technology Division (Blossom Point)
for providing a portion of the explosive materials used for this
research. Views, opinions, and/or findings contained in this report are
those of the author(s) and should not be construed as an official
Department of Defense position or decision unless so designated by other
official documentation.
NR 23
TC 0
Z9 0
U1 0
U2 6
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0304-3894
EI 1873-3336
J9 J HAZARD MATER
JI J. Hazard. Mater.
PD FEB 11
PY 2015
VL 283
BP 1
EP 6
DI 10.1016/j.jhazmat.2014.08.064
PG 6
WC Engineering, Environmental; Engineering, Civil; Environmental Sciences
SC Engineering; Environmental Sciences & Ecology
GA AY3PB
UT WOS:000347494200001
PM 25262478
ER
PT J
AU Gonzalez-Alfonso, E
Fischer, J
Sturm, E
Gracia-Carpio, J
Veilleux, S
Melendez, M
Lutz, D
Poglitsch, A
Aalto, S
Falstad, N
Spoon, HWW
Farrah, D
Blasco, A
Henkel, C
Contursi, A
Verma, A
Spaans, M
Smith, HA
Ashby, MLN
Hailey-Dunsheath, S
Garcia-Burillo, S
Martin-Pintado, J
Van Der Werf, P
Meijerink, R
Genzel, R
AF Gonzalez-Alfonso, E.
Fischer, J.
Sturm, E.
Gracia-Carpio, J.
Veilleux, S.
Melendez, M.
Lutz, D.
Poglitsch, A.
Aalto, S.
Falstad, N.
Spoon, H. W. W.
Farrah, D.
Blasco, A.
Henkel, C.
Contursi, A.
Verma, A.
Spaans, M.
Smith, H. A.
Ashby, M. L. N.
Hailey-Dunsheath, S.
Garcia-Burillo, S.
Martin-Pintado, J.
Van Der Werf, P.
Meijerink, R.
Genzel, R.
TI HIGH-LYING OH ABSORPTION, [C II] DEFICITS, AND EXTREME L-FIR/M-H2 RATIOS
IN GALAXIES
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE galaxies: evolution; galaxies: ISM; infrared: galaxies; line: formation
ID ULTRALUMINOUS INFRARED GALAXIES; MICRON LINE DEFICIT; STAR-FORMATION
LAWS; MOLECULAR GAS; NGC 4418; PHOTODISSOCIATION REGIONS; OPTICAL
SPECTROSCOPY; HERSCHEL-PACS; DENSE GAS; ARP 220
AB Herschel/PACS observations of 29 local (ultra) luminous infrared galaxies, including both starburst and active galactic nucleus (AGN) dominated sources as diagnosed in the mid-infrared/optical, show that the equivalent width of the absorbing OH 65 mu m.3/2 J = 9/2-7/2 line (Weq(OH65)) with lower level energy Elow 300 K, is anticorrelated with the [Cii] 158 mu m line to far-infrared luminosity ratio, and correlated with the far-infrared luminosity per unit gas mass and with the 60-to-100 mu m far-infrared color. While all sources are in the active LIR/MH2 > 50L /M mode as derived from previous CO line studies, the OH65 absorption shows a bimodal distribution with a discontinuity at LFIR/MH2 100L /M . In the most buried sources, OH65 probes material partially responsible for the silicate 9.7 mu m absorption. Combined with observations of the OH 71 mu m.1/2 J = 7/2-5/2 doublet (Elow 415 K), radiative transfer models characterized by the equivalent dust temperature, Tdust, and the continuum optical depth at 100 mu m, t100, indicate that strong [C ii] 158 mu m deficits are associated with far-IR thick (t100 0.7, NH 1024 cm-2), warm (Tdust 60 K) structures where the OH 65 mu m absorption is produced, most likely in circumnuclear disks/tori/cocoons. With their high LFIR/MH2 ratios and columns, the presence of these structures is expected to give rise to strong [C ii] deficits. Weq(OH65) probes the fraction of infrared luminosity arising from these compact/warm environments, which is 30%-50% in sources with high Weq(OH65). Sources with high Weq(OH65) have surface densities of both LIR and MH2 higher than inferred from the half-light (CO or UV/optical) radius, tracing coherent structures that represent the most buried/active stage of (circum) nuclear starburst-AGN co-evolution.
C1 [Gonzalez-Alfonso, E.; Blasco, A.] Univ Alcala de Henares, Dept Fis & Matemat, E-28871 Madrid, Spain.
[Fischer, J.] Naval Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
[Sturm, E.; Gracia-Carpio, J.; Lutz, D.; Poglitsch, A.; Contursi, A.; Genzel, R.] Max Planck Inst Extraterr Phys MPE, D-85748 Garching, Germany.
[Veilleux, S.; Melendez, M.] Univ Maryland, Dept Astron, College Pk, MD 20742 USA.
[Aalto, S.; Falstad, N.] Chalmers, Onsala Space Observ, Dept Earth & Space Sci, SE-43992 Onsala, Sweden.
[Spoon, H. W. W.] Cornell Univ, Dept Astron, Ithaca, NY 14853 USA.
[Farrah, D.] Virginia Tech, Dept Phys, Blacksburg, VA 24061 USA.
[Henkel, C.] Max Planck Inst Radioastron, D-53121 Bonn, Germany.
[Henkel, C.] Kind Abdulaziz Univ, Dept Astron, Jeddah 21589, Saudi Arabia.
[Verma, A.] Univ Oxford, Oxford Astrophys, Oxford OX1 3RH, England.
[Spaans, M.] Univ Groningen, Kapteyn Astron Inst, NL-9700 AB Groningen, Netherlands.
[Smith, H. A.; Ashby, M. L. N.] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA.
[Hailey-Dunsheath, S.] CALTECH, Pasadena, CA 91125 USA.
[Garcia-Burillo, S.] Observ Madrid, OAN, E-28014 Madrid, Spain.
[Martin-Pintado, J.] CSIC INTA, E-28850 Madrid, Spain.
[Van Der Werf, P.; Meijerink, R.] Leiden Univ, Sterrewacht Leiden, NL-2300 RA Leiden, Netherlands.
RP Gonzalez-Alfonso, E (reprint author), Univ Alcala de Henares, Dept Fis & Matemat, Campus Univ, E-28871 Madrid, Spain.
RI Martin-Pintado, Jesus/H-6107-2015;
OI Martin-Pintado, Jesus/0000-0003-4561-3508; Poglitsch,
Albrecht/0000-0002-6414-9408; Gonzalez-Alfonso,
Eduardo/0000-0001-5285-8517; Fischer, Jacqueline/0000-0001-6697-7808;
Veilleux, Sylvain/0000-0002-3158-6820
FU BMVIT (Austria); ESA-PRODEX (Belgium); CEA/CNES (France); DLR (Germany);
ASI/INAF (Italy); CICYT/MCYT (Spain); Spanish Ministerio de Economia y
Competitividad [AYA2010-21697-C05-0, FIS2012-39162-C06-01]; NHSC/JPL RSA
[1455432]; NASA grant [NNX14AJ61G]; US-ONR; NHSC/JPL [139807, 1456609,
1427277, 1454738]
FX PACS has been developed by a consortium of institutes led by MPE
(Germany) and including UVIE (Austria); KU Leuven, CSL, IMEC (Belgium);
CEA, LAM (France); MPIA (Germany); INAFIFSI/OAA/OAP/OAT, LENS, SISSA
(Italy); IAC (Spain). This development has been supported by the funding
agencies BMVIT (Austria), ESA-PRODEX (Belgium), CEA/CNES (France), DLR
(Germany), ASI/INAF (Italy), and CICYT/MCYT (Spain). E.G.-A. is a
Research Associate at the Harvard-Smithsonian CfA, and thanks the
Spanish Ministerio de Economia y Competitividad for support under
projects AYA2010-21697-C05-0 and FIS2012-39162-C06-01. E. G.-A. and H.
A. S. acknowledge partial support from NHSC/JPL RSA 1455432; H. A. S
acknowledges NASA grant NNX14AJ61G. Basic research in IR astronomy at
NRL is funded by the US-ONR; J. F. acknowledges support from NHSC/JPL
subcontracts 139807 and 1456609. S. V. and M. M. acknowledge partial
support from NHSC/JPL RSA 1427277 and 1454738. This research has made
use of NASA's Astrophysics Data System and of GILDAS (http://www. iram.
fr/IRAMFR/GILDAS).
NR 70
TC 11
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U1 1
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 FEB 10
PY 2015
VL 800
IS 1
AR 69
DI 10.1088/0004-637X/800/1/69
PG 10
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA CA9IQ
UT WOS:000349236900069
ER
PT J
AU Tunnard, R
Greve, TR
Garcia-Burillo, S
Carpio, JG
Fischer, J
Fuente, A
Gonzalez-Alfonso, E
Hailey-Dunsheath, S
Neri, R
Sturm, E
Usero, A
Planesas, P
AF Tunnard, R.
Greve, T. R.
Garcia-Burillo, S.
Carpio, J. Gracia
Fischer, J.
Fuente, A.
Gonzalez-Alfonso, E.
Hailey-Dunsheath, S.
Neri, R.
Sturm, E.
Usero, A.
Planesas, P.
TI CHEMICALLY DISTINCT NUCLEI AND OUTFLOWING SHOCKED MOLECULAR GAS IN Arp
220
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE galaxies: active; galaxies: individual (Arp 220); galaxies: ISM;
galaxies: jets; submillimeter: general
ID ULTRALUMINOUS INFRARED GALAXIES; ACTIVE GALACTIC NUCLEI; STAR-FORMATION;
CO EMISSION; BLACK-HOLE; ARP-220; RESOLUTION; FEEDBACK; HCN; HCO+
AB We present the results of interferometric spectral line observations of Arp 220 at 3.5 mm and 1.2 mm from the Plateau de Bure Interferometer, imaging the two nuclear disks in (HCN)-C-13(1-0) and (3-2), (HCO+)-C-13(1-0) and (3-2), and (HNC)-C-13(3-2) as well as SiO(2-1) and (6-5), (HCN)-N-15(3-2), and SO(6(6)-5(5)). The gas traced by SiO(6-5) has a complex and extended kinematic signature including a prominent P Cygni profile, almost identical to previous observations of HCO+(3-2). Spatial offsets 0 ''.1 north and south of the continuum center in the emission and absorption of the SiO(6-5) P Cygni profile in the western nucleus (WN) imply a bipolar outflow, delineating the northern and southern edges of its disk and suggesting a disk radius of similar to 40 pc, consistent with that found by ALMA observations of Arp 220. We address the blending of SiO(6-5) and (HCO+)-C-13(3-2) by considering two limiting cases with regards to the (HCO+)-C-13 emission throughout our analysis. Large velocity gradient modeling is used to constrain the physical conditions of the gas and to infer abundance ratios in the two nuclei. Our most conservative lower limit on the [(HCN)-C-13]/[(HCO+)-C-13] abundance ratio is 11 in the WN, compared with 0.10 in the eastern nucleus (EN). Comparing these ratios to the literature we argue on chemical grounds for an energetically significant active galactic nucleus in the WN driving either X-ray or shock chemistry, and a dominant starburst in the EN.
C1 [Tunnard, R.; Greve, T. R.] UCL, Dept Phys & Astron, London WC1E 6BT, England.
[Garcia-Burillo, S.; Fuente, A.; Usero, A.; Planesas, P.] Observ Madrid, Observ Astron Nacl, E-28014 Madrid, Spain.
[Carpio, J. Gracia; Hailey-Dunsheath, S.; Sturm, E.] Max Planck Inst Extraterr Phys MPE, D-85748 Garching, Germany.
[Fischer, J.] Naval Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
[Gonzalez-Alfonso, E.; Neri, R.] Univ Alcala de Henares, Dept Fis & Matemat, E-28871 Madrid, Spain.
IRAM, F-38406 St Martin Dheres, France.
RP Tunnard, R (reprint author), UCL, Dept Phys & Astron, Gower St, London WC1E 6BT, England.
EM richard.tunnard.13@ucl.ac.uk
RI Planesas, Pere/G-7950-2015; Fuente, Asuncion/G-1468-2016;
OI Planesas, Pere/0000-0002-7808-3040; Fuente,
Asuncion/0000-0001-6317-6343; Tunnard, Richard/0000-0002-7558-7446;
Garcia-Burillo, Santiago/0000-0003-0444-6897; Fischer,
Jacqueline/0000-0001-6697-7808
FU STFC PhD studentship; Spanish grants [AYA2012-32295, FIS2012-32096,
AYA2010-15169]; STFC Advanced Fellowship; Junta de Andalucia [TIC-114];
Excellence Project [P08-TIC-03531]; Spanish MICIN program CONSOLIDER
IMAGENIO [CSD2009-00038]; Spanish Ministerio de Economia-Competitividad
[AYA2010-21697-C05-0, FIS2012-39162-C06-01]; US ONR; INSU/CNRS (France);
MPG (Germany); IGN (Spain); National Aeronautics and Space
Administration
FX We thank the anonymous referee their extensive and patient comments,
which greatly improved this paper. This research is supported by an STFC
PhD studentship. A. U. and P. P. acknowledge support from Spanish grants
AYA2012-32295 and FIS2012-32096. T. R. G. acknowledges support from an
STFC Advanced Fellowship. S. G. B. acknowledges support from Spanish
grants AYA2010-15169 and AYA2012-32295 and from the Junta de Andalucia
through TIC-114 and the Excellence Project P08-TIC-03531. A. F. and S.
G. B. acknowledge support from Spanish MICIN program CONSOLIDER IMAGENIO
2010 under grant "ASTROMOL" (ref. CSD2009-00038). E. G. A. is a Research
Associate at the Harvard-Smithsonian CfA, and thanks the Spanish
Ministerio de Economia-Competitividad for support under projects
AYA2010-21697-C05-0 and FIS2012-39162-C06-01. Basic research in IR and
millimetre wave astronomy at NRL is funded by the US ONR. We thank
Kazushi Sakamoto for kindly providing the HCO+(3-2) spectrum
used in Figure 6. We would also like to thank S. Viti, M. Matsura, and
Z. Zhang for informative and productive discussions. This work was based
on observations carried out with the IRAM PdBI, supported by INSU/CNRS
(France), MPG (Germany), and IGN (Spain), and includes observations made
with the NASA/ESA Hubble Space Telescope, and obtained from the Hubble
Legacy Archive, which is a collaboration between the Space Telescope
Science Institute (STScI/NASA), the Space Telescope European
Coordinating Facility (ST-ECF/ESA) and the Canadian Astronomy Data
Centre (CADC/NRC/CSA). This publication also makes use of data products
from the Wide-field Infrared Survey Explorer, which is a joint project
of the University of California, Los Angeles, and the Jet Propulsion
Laboratory/California Institute of Technology, funded by the National
Aeronautics and Space Administration.
NR 80
TC 15
Z9 15
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 FEB 10
PY 2015
VL 800
IS 1
AR 25
DI 10.1088/0004-637X/800/1/25
PG 23
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA CA9IQ
UT WOS:000349236900025
ER
PT J
AU Roy, J
Ray, PS
Bhattacharyya, B
Stappers, B
Chengalur, JN
Deneva, J
Camilo, F
Johnson, TJ
Wolff, M
Hessels, JWT
Bassa, CG
Keane, EF
Ferrara, EC
Harding, AK
Wood, KS
AF Roy, Jayanta
Ray, Paul S.
Bhattacharyya, Bhaswati
Stappers, Ben
Chengalur, Jayaram N.
Deneva, Julia
Camilo, Fernando
Johnson, Tyrel J.
Wolff, Michael
Hessels, Jason W. T.
Bassa, Cees G.
Keane, Evan F.
Ferrara, Elizabeth C.
Harding, Alice K.
Wood, Kent S.
TI DISCOVERY OF PSR J1227-4853: A TRANSITION FROM A LOW-MASS X-RAY BINARY
TO A REDBACK MILLISECOND PULSAR
SO ASTROPHYSICAL JOURNAL LETTERS
LA English
DT Article
DE accretion, accretion disks; binaries: eclipsing; pulsars: individual
(PSR J1227-4853); X-rays: binaries
ID J1023+0038; STATE; ROTATION; LINK
AB XSS J12270-4859 is an X-ray binary associated with the Fermi Large Area Telescope gamma-ray source 1FGL J1227.9-4852. In 2012 December, this source underwent a transition where the X-ray and optical luminosity dropped and the spectral signatures of an accretion disk disappeared. We report the discovery of a 1.69 millisecond pulsar (MSP), PSR J1227-4853, at a dispersion measure of 43.4 pc cm(-3) associated with this source, using the Giant Metrewave Radio Telescope (GMRT) at 607MHz. This demonstrates that, post-transition, the system hosts an active radio MSP. This is the third system after PSR J1023+0038 and PSR J1824-2452I showing evidence of state switching between radio MSP and low-mass X-ray binary states. We report timing observations of PSR J1227-4853 with the GMRT and Parkes, which give a precise determination of the rotational and orbital parameters of the system. The companion mass measurement of 0.17-0.46M(circle dot) suggests that this is a redback system. PSR J1227-4853 is eclipsed for about 40% of its orbit at 607 MHz with additional short-duration eclipses at all orbital phases. We also find that the pulsar is very energetic, with a spin-down luminosity of similar to 10(35) erg s(-1). We report simultaneous imaging and timing observations with the GMRT, which suggests that eclipses are caused by absorption rather than dispersion smearing or scattering.
C1 [Roy, Jayanta; Bhattacharyya, Bhaswati; Stappers, Ben] Univ Manchester, Jodrell Bank Ctr Astrophys, Sch Phys & Astron, Manchester M13 9PL, Lancs, England.
[Roy, Jayanta; Chengalur, Jayaram N.] Inst Fundamental Res, Natl Ctr Radio Astrophys, Pune 411007, Maharashtra, India.
[Ray, Paul S.; Wolff, Michael; Wood, Kent S.] Naval Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Deneva, Julia] Naval Res Lab, NRC Res Associate, Washington, DC 20375 USA.
[Camilo, Fernando] Columbia Univ, Columbia Astrophys Lab, New York, NY 10027 USA.
[Wolff, Michael] George Mason Univ, Coll Sci, Fairfax, VA 22030 USA.
[Johnson, Tyrel J.] Naval Res Lab, Washington, DC 20375 USA.
[Hessels, Jason W. T.; Bassa, Cees G.] Netherlands Inst Radio Astron, ASTRON, NL-7990 AA Dwingeloo, Netherlands.
[Hessels, Jason W. T.] Univ Amsterdam, Astron Inst Anton Pannekoek, NL-1098 XH Amsterdam, Netherlands.
[Keane, Evan F.] Swinburne Univ Technol, Ctr Astrophys & Supercomp, Hawthorn, Vic 3122, Australia.
[Ferrara, Elizabeth C.; Harding, Alice K.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
RP Roy, J (reprint author), Univ Manchester, Jodrell Bank Ctr Astrophys, Sch Phys & Astron, Manchester M13 9PL, Lancs, England.
OI Ray, Paul/0000-0002-5297-5278
FU Commonwealth of Australia; Chief of Naval Research (CNR); Marie Curie
grant (FP7) of the EU; NWO Vidi fellowship; ERC Starting Grant "DRAGNET"
[337062]
FX The GMRT is run by the National Centre for Radio Astrophysics of the
Tata Institute of Fundamental Research, India. We acknowledge support of
GMRT telescope operators for observations. We thank Andrew Lyne for
discussion on the GMRT timing model. The Parkes radio telescope is
funded by the Commonwealth of Australia for operation as a National
Facility managed by CSIRO. We acknowledge the help of John Reynolds in
understanding the time offset at GMRT while combining with Parkes data.
This work at NRL was supported by the Chief of Naval Research (CNR).
B.B. acknowledges the support of Marie Curie grant (FP7) of the EU.
J.W.T.H. acknowledges funding from an NWO Vidi fellowship and ERC
Starting Grant "DRAGNET" (337062).
NR 31
TC 24
Z9 24
U1 0
U2 2
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 2041-8205
EI 2041-8213
J9 ASTROPHYS J LETT
JI Astrophys. J. Lett.
PD FEB 10
PY 2015
VL 800
IS 1
AR L12
DI 10.1088/2041-8205/800/1/L12
PG 6
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA CB0KY
UT WOS:000349316000012
ER
PT J
AU Safron, EJ
Fischer, WJ
Megeath, ST
Furlan, E
Stutz, AM
Stanke, T
Billot, N
Rebull, LM
Tobin, JJ
Ali, B
Allen, LE
Booker, J
Watson, DM
Wilson, TL
AF Safron, Emily J.
Fischer, William J.
Megeath, S. Thomas
Furlan, Elise
Stutz, Amelia M.
Stanke, Thomas
Billot, Nicolas
Rebull, Luisa M.
Tobin, John J.
Ali, Babar
Allen, Lori E.
Booker, Joseph
Watson, Dan M.
Wilson, T. L.
TI HOPS 383: AN OUTBURSTING CLASS 0 PROTOSTAR IN ORION
SO ASTROPHYSICAL JOURNAL LETTERS
LA English
DT Article
DE circumstellar matter; infrared: stars; stars: formation; stars:
protostars
ID YOUNG STELLAR OBJECTS; SPECTROSCOPIC SURVEY; EMBEDDED PROTOSTARS; DISK
FRAGMENTATION; NEBULA CLUSTER; MCNEILS NEBULA; STAR-FORMATION; BROWN
DWARFS; VARIABILITY; ACCRETION
AB We report the dramatic mid-infrared brightening between 2004 and 2006 of Herschel Orion Protostar Survey (HOPS) 383, a deeply embedded protostar adjacent to NGC 1977 in Orion. By 2008, the source became a factor of 35 brighter at 24 mu m with a brightness increase also apparent at 4.5 mu m. The outburst is also detected in the submillimeter by comparing APEX/SABOCA to SCUBA data, and a scattered-light nebula appeared in NEWFIRM K-s imaging. The post-outburst spectral energy distribution indicates a Class 0 source with a dense envelope and a luminosity between 6 and 14 L-circle dot Post-outburst time-series mid-and far-infrared photometry show no long-term fading and variability at the 18% level between 2009 and 2012. HOPS 383 is the first outbursting Class 0 object discovered, pointing to the importance of episodic accretion at early stages in the star formation process. Its dramatic rise and lack of fading over a 6 year period hint that it may be similar to FU Ori outbursts, although the luminosity appears to be significantly smaller than the canonical luminosities of such objects.
C1 [Safron, Emily J.; Megeath, S. Thomas; Booker, Joseph] Univ Toledo, Dept Phys & Astron, Ritter Astrophys Observ, Toledo, OH 43606 USA.
[Fischer, William J.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Furlan, Elise; Rebull, Luisa M.] CALTECH, Infrared Proc & Anal Ctr, Pasadena, CA 91125 USA.
[Stutz, Amelia M.] Max Planck Inst Astron, D-69117 Heidelberg, Germany.
[Stanke, Thomas] European So Observ, Garching, Germany.
[Billot, Nicolas] Inst Radio Astron Milimetr, Granada, Spain.
[Tobin, John J.] Leiden Observ, NL-2300 RA Leiden, Netherlands.
[Ali, Babar] Space Sci Inst, Boulder, CO USA.
[Allen, Lori E.] Natl Opt Astron Observ, Tucson, AZ 85726 USA.
[Watson, Dan M.] Univ Rochester, Dept Phys & Astron, Rochester, NY 14627 USA.
[Wilson, T. L.] Naval Res Lab, Washington, DC 20375 USA.
RP Safron, EJ (reprint author), Univ Toledo, Dept Phys & Astron, Ritter Astrophys Observ, 2801 W Bancroft St, Toledo, OH 43606 USA.
EM wjfischer@gmail.com
OI Fischer, William J/0000-0002-3747-2496; Rebull,
Luisa/0000-0001-6381-515X; Stutz, Amelia/0000-0003-2300-8200; Furlan,
Elise/0000-0001-9800-6248
FU National Aeronautics and Space Administration (NASA) through Jet
Propulsion Laboratory, California Institute of Technology (JPL/Caltech);
NASA; NASA Postdoctoral Program at Goddard Space Flight Center; Deutsche
Forschungsgemeinschaft priority program 1573 ("Physics of the
Interstellar Medium")
FX Support for this work was provided by the National Aeronautics and Space
Administration (NASA) through awards issued by the Jet Propulsion
Laboratory, California Institute of Technology (JPL/Caltech). We include
data from Herschel, a European Space Agency space observatory with
science instruments provided by European-led consortia and with
important participation from NASA. We use data from the Spitzer Space
Telescope and the Infrared Processing and Analysis Center Infrared
Science Archive, which are operated by JPL/Caltech under a contract with
NASA. We also include data from APEX, a collaboration between the
Max-PlanckI-nstitut fur Radioastronomie, the European Southern
Observatory, and the Onsala Space Observatory. This paper makes use of
data products from WISE, which is a joint project of the University of
California, Los Angeles, and JPL/Caltech, funded by NASA. This paper
uses observations taken at Kitt Peak National Observatory, National
Optical Astronomy Observatory, which is operated by the Association of
Universities for Research in Astronomy under cooperative agreement with
the National Science Foundation. The work of W.F. was supported by an
appointment to the NASA Postdoctoral Program at Goddard Space Flight
Center, administered by Oak Ridge Associated Universities through a
contract with NASA. The work of A.S. was supported by the Deutsche
Forschungsgemeinschaft priority program 1573 ("Physics of the
Interstellar Medium").
NR 46
TC 18
Z9 18
U1 0
U2 1
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 FEB 10
PY 2015
VL 800
IS 1
AR L5
DI 10.1088/2041-8205/800/1/L5
PG 6
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA CB0KY
UT WOS:000349316000005
ER
PT J
AU Berg, P
Abend, S
Tackmann, G
Schubert, C
Giese, E
Schleich, WP
Narducci, FA
Ertmer, W
Rasel, EM
AF Berg, P.
Abend, S.
Tackmann, G.
Schubert, C.
Giese, E.
Schleich, W. P.
Narducci, F. A.
Ertmer, W.
Rasel, E. M.
TI Composite-Light-Pulse Technique for High-Precision Atom Interferometry
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID STIMULATED RAMAN TRANSITIONS; MAGNETOMETER
AB We realize beam splitters and mirrors for atom waves by employing a sequence of light pulses rather than individual ones. In this way we can tailor atom interferometers with improved sensitivity and accuracy. We demonstrate our method of composite pulses by creating a symmetric matter-wave interferometer which combines the advantages of conventional Bragg- and Raman-type concepts. This feature leads to an interferometer with a high immunity to technical noise allowing us to devise a large-area Sagnac gyroscope yielding a phase shift of 6.5 rad due to the Earth's rotation. With this device we achieve a rotation rate precision of 120 nrad s(-1) Hz(-1/2) and determine the Earth's rotation rate with a relative uncertainty of 1.2%.
C1 [Berg, P.; Abend, S.; Tackmann, G.; Schubert, C.; Ertmer, W.; Rasel, E. M.] Leibniz Univ Hannover, Inst Quantenopt, D-30167 Hannover, Germany.
[Giese, E.; Schleich, W. P.] Leibniz Univ Hannover, Ctr Quantum Engn & Space Time Res QUEST, D-30167 Hannover, Germany.
[Giese, E.; Schleich, W. P.] Univ Ulm, Inst Quantenphys, D-89081 Ulm, Germany.
[Giese, E.; Schleich, W. P.] Univ Ulm, Ctr Integrated Quantum Sci & Technol IQST, D-89081 Ulm, Germany.
[Schleich, W. P.] Texas A&M Univ, Inst Quantum Sci & Engn, Inst Adv Study TIAS, College Stn, TX 77843 USA.
[Schleich, W. P.] Texas A&M Univ, Dept Phys & Astron, College Stn, TX 77843 USA.
[Narducci, F. A.] Naval Air Syst Command, EO Sensors Div, Patuxent River, MD 20670 USA.
RP Rasel, EM (reprint author), Leibniz Univ Hannover, Inst Quantenopt, Welfengarten 1, D-30167 Hannover, Germany.
EM rasel@iqo.uni-hannover.de
FU Deutsche Forschungsgemeinschaft [SFB407]; European Union [New and
Emerging Science and Technologies (NEST)] [012986-2]; Centre for Quantum
Engineering and Space-Time Research (QUEST); Max-Planck-Gesellschaft;
International Cold Atom Network (INTERCAN); Universite francoallemande,
Deutsch-Franzosische Hochschule (UFA-DFH); Center for Integrated Quantum
Science and Technology (IQST); Texas A&M University for a
Texas A&M University Institute for Advanced Study (TIAS) Faculty
Fellowship; Nanoscale Informal Science Education (NISE) Technology
Transition grant; European Union [Future Inertial Atomic Quantum Sensors
(FINAQS)] [012986-2]; European Union [Euroquasar] [012986-2]; European
Union [Inertial Atomic and Photonic Quantum Sensors (IQS)] [012986-2]
FX We thank P. Bouyer for providing us with two Minus-K vibration isolation
platforms, which were crucial for obtaining our results. This work was
supported in part by the Deutsche Forschungsgemeinschaft (Grant No.
SFB407), the European Union [Contract No. 012986-2, New and Emerging
Science and Technologies (NEST), Future Inertial Atomic Quantum Sensors
(FINAQS), Euroquasar, Inertial Atomic and Photonic Quantum Sensors
(IQS)], and the Centre for Quantum Engineering and Space-Time Research
(QUEST). G.T. acknowledges the support by the Max-Planck-Gesellschaft,
the International Cold Atom Network (INTERCAN), and the Universite
francoallemande, Deutsch-Franzosische Hochschule (UFA-DFH). E. G. is
grateful to the Center for Integrated Quantum Science and Technology
(IQST) for a fellowship. W. P. S. is thankful to Texas A&M
University for a Texas A&M University Institute for Advanced Study
(TIAS) Faculty Fellowship and F. A. N. acknowledges funding from a
Nanoscale Informal Science Education (NISE) Technology Transition grant.
NR 33
TC 19
Z9 19
U1 7
U2 54
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 FEB 9
PY 2015
VL 114
IS 6
AR 063002
DI 10.1103/PhysRevLett.114.063002
PG 5
WC Physics, Multidisciplinary
SC Physics
GA CC3JV
UT WOS:000350244900004
PM 25723216
ER
PT J
AU Fatemi, FK
Beadie, G
AF Fatemi, Fredrik K.
Beadie, Guy
TI Spatially-resolved Rayleigh scattering for analysis of vector mode
propagation in few-mode fibers
SO OPTICS EXPRESS
LA English
DT Article
ID OPTICAL-FIBERS; BEAT LENGTH; POLARIZATION; NANOFIBER
AB We use high-resolution imaging of Rayleigh scattered light through the side of few-mode optical fibers to measure the local spatial structure of propagating vector fields. We demonstrate the technique by imaging both pure modes and superpositions of modes in the LP01 and LP11 families. Direct imaging not only gives high-resolution beat length measurements, but also records the local propagation dynamics including those due to perturbations. The imaging setup uses polarization discrimination to monitor both the transverse and the longitudinal polarization components simultaneously. (c) 2015 Optical Society of America
C1 [Fatemi, Fredrik K.; Beadie, Guy] Naval Res Lab, Div Opt Sci, Washington, DC 20375 USA.
RP Fatemi, FK (reprint author), Naval Res Lab, Div Opt Sci, Washington, DC 20375 USA.
EM coldatoms@nrl.navy.mil
FU Office of Naval Research; Defense Advanced Research Projects Agency
FX The authors acknowledge helpful discussions with Jonathan Hoffman. This
work was supported by the Office of Naval Research and by the Defense
Advanced Research Projects Agency.
NR 26
TC 2
Z9 2
U1 2
U2 15
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 FEB 9
PY 2015
VL 23
IS 3
BP 3831
EP 3840
DI 10.1364/OE.23.003831
PG 10
WC Optics
SC Optics
GA CB5SV
UT WOS:000349688800191
PM 25836234
ER
PT J
AU Urick, VJ
AF Urick, Vincent J.
TI Analogue photonic link design charts for microwave engineering
applications
SO JOURNAL OF ENGINEERING-JOE
LA English
DT Article
AB A set of unique design charts for intensity-modulation direct-detection microwave photonics links is presented. The charts facilitate link design and analysis, clearly demonstrating performance trade-offs in terms of standard microwave performance metrics.
C1 [Urick, Vincent J.] Naval Res Lab, Washington, DC 20375 USA.
RP Urick, VJ (reprint author), Naval Res Lab, Washington, DC 20375 USA.
EM vincent.urick@nrl.navy.mil
NR 6
TC 0
Z9 0
U1 0
U2 0
PU INST ENGINEERING TECHNOLOGY-IET
PI HERTFORD
PA MICHAEL FARADAY HOUSE SIX HILLS WAY STEVENAGE, HERTFORD SG1 2AY, ENGLAND
SN 2051-3305
J9 J ENG-JOE
JI J. Eng.-JOE
PD FEB 6
PY 2015
BP 1
EP 3
DI 10.1049/joe.2014.0342
PG 3
WC Engineering, Multidisciplinary
SC Engineering
GA DU8JC
UT WOS:000382458100001
ER
PT J
AU Zhang, JH
Zhang, QH
Vo, TT
Parrish, DA
Shreeve, JM
AF Zhang, Jiaheng
Zhang, Qinghua
Vo, Thao T.
Parrish, Damon A.
Shreeve, Jean'ne M.
TI Energetic Salts with pi-Stacking and Hydrogen-Bonding Interactions Lead
the Way to Future Energetic Materials
SO JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
LA English
DT Article
ID CRYSTAL; EXPLOSIVES; ANION; DERIVATIVES; COMPLEXES; ACID
AB Among energetic materials, there are two significant challenges facing researchers: 1) to develop ionic CHNO explosives with higher densities than their parent nonionic molecules and (2) to achieve a fine balance between high detonation performance and low sensitivity. We report a surprising energetic salt, hydroxylammonium 3-dinitromethanide-1,2,4-triazolone, that exhibits exceptional properties, viz., higher density, superior detonation performance, and improved thermal, impact, and friction stabilities, then those of its precursor, 3-dinitromethyl-1,2,4-triazolone. The solid-state structure features of the new energetic salt were investigated with X-ray diffraction which showed pi-stacking and hydrogen-bonding interactions that contribute to closer packing and higher density. According to the experimental results and theoretical analysis, the newly designed energetic salt also gives rise to a workable compromise in high detonation properties and desirable stabilities. These findings will enhance the future prospects for rational energetic materials design and commence a new chapter in this field.
C1 [Zhang, Jiaheng; Zhang, Qinghua; Vo, Thao T.; Shreeve, Jean'ne M.] Univ Idaho, Dept Chem, Moscow, ID 83844 USA.
[Zhang, Qinghua] China Acad Engn Phys, Inst Chem Mat, Mianyang 621900, Peoples R China.
[Vo, Thao T.] Naval Surface Warfare Ctr, Indian Head Explos Ordnance Disposal Technol Div, Indian Head, MD 20640 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@uidaho.edu
RI Zhang, Qinghua/K-4474-2013
OI Zhang, Qinghua/0000-0003-3620-4331
FU ONR [NOOO14-12-1-0536]
FX The authors gratefully acknowledge the support of ONR
(NOOO14-12-1-0536). We are indebted to Dr. Richard J. Staples for
considerable assistance with crystal structuring and Dr. Xiujuan Qi and
Dr. Tian Lu for calculations.
NR 52
TC 41
Z9 42
U1 14
U2 73
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 FEB 4
PY 2015
VL 137
IS 4
BP 1697
EP 1704
DI 10.1021/ja5126275
PG 8
WC Chemistry, Multidisciplinary
SC Chemistry
GA CA8AJ
UT WOS:000349138600049
PM 25565429
ER
PT J
AU Mungan, C
AF Mungan, Carl
TI The Pursuit of a Plane by a Homing Missile
SO PHYSICS TEACHER
LA English
DT Letter
ID CHASE PROBLEM
C1 [Mungan, Carl] US Naval Acad, Annapolis, MD 21402 USA.
RP Mungan, C (reprint author), US Naval Acad, Annapolis, MD 21402 USA.
EM mungan@usna.edu
NR 3
TC 0
Z9 0
U1 1
U2 1
PU AMER ASSN PHYSICS TEACHERS
PI COLLEGE PK
PA 5110 ROANOKE PLACE SUITE 101, COLLEGE PK, MD 20740 USA
SN 0031-921X
J9 PHYS TEACH
JI Phys. Teach.
PD FEB
PY 2015
VL 53
IS 2
BP 68
EP 69
DI 10.1119/1.4905796
PG 3
WC Physics, Multidisciplinary
SC Physics
GA CX5YW
UT WOS:000365779400002
ER
PT J
AU O'Reilly, O
Nordstrom, J
Kozdon, JE
Dunham, EM
AF O'Reilly, Ossian
Nordstrom, Jan
Kozdon, Jeremy E.
Dunham, Eric M.
TI Simulation of Earthquake Rupture Dynamics in Complex Geometries Using
Coupled Finite Difference and Finite Volume Methods
SO COMMUNICATIONS IN COMPUTATIONAL PHYSICS
LA English
DT Article
DE Elastic waves; earthquake; high order finite difference finite volume;
summation-by-parts; simultaneous approximation term; nonlinear boundary
conditions
ID BOUNDARY-VALUE-PROBLEMS; NAVIER-STOKES EQUATIONS; HYPERBOLIC PROBLEMS;
WAVE-PROPAGATION; NONPLANAR FAULTS; HYBRID METHOD; ORDER;
APPROXIMATIONS; STABILITY; SUMMATION
AB We couple a node-centered finite volume method to a high order finite difference method to simulate dynamic earthquake ruptures along nonplanar faults in two dimensions. The finite volume method is implemented on an unstructured mesh, providing the ability to handle complex geometries. The geometric complexities are limited to a small portion of the overall domain and elsewhere the high order finite difference method is used, enhancing efficiency. Both the finite volume and finite difference methods are in summation-by-parts form. Interface conditions coupling the numerical solution across physical interfaces like faults, and computational ones between structured and unstructured meshes, are enforced weakly using the simultaneous-approximation-term technique. The fault interface condition, or friction law, provides a nonlinear relation between fields on the two sides of the fault, and allows for the particle velocity field to be discontinuous across it. Stability is proved by deriving energy estimates; stability, accuracy, and efficiency of the hybrid method are confirmed with several computational experiments. The capabilities of the method are demonstrated by simulating an earthquake rupture propagating along the margins of a volcanic plug.
C1 [O'Reilly, Ossian; Dunham, Eric M.] Stanford Univ, Dept Geophys, Stanford, CA 94305 USA.
[O'Reilly, Ossian; Nordstrom, Jan] Linkoping Univ, Div Computat Math, Dept Math, SE-58183 Linkoping, Sweden.
[Kozdon, Jeremy E.] Naval Postgrad Sch, Dept Appl Math, Monterey, CA 93943 USA.
[Dunham, Eric M.] Stanford Univ, Inst Computat & Math Engn, Stanford, CA 94305 USA.
RP O'Reilly, O (reprint author), Stanford Univ, Dept Geophys, Stanford, CA 94305 USA.
EM ooreilly@stanford.edu; jan.nordstrom@liu.se; jekozdon@nps.edu;
edunham@stanford.edu
OI Nordstrom, Jan/0000-0002-7972-6183
NR 70
TC 0
Z9 0
U1 1
U2 5
PU GLOBAL SCIENCE PRESS
PI WANCHAI
PA ROOM 3208, CENTRAL PLAZA, 18 HARBOUR RD, WANCHAI, HONG KONG 00000,
PEOPLES R CHINA
SN 1815-2406
EI 1991-7120
J9 COMMUN COMPUT PHYS
JI Commun. Comput. Phys.
PD FEB
PY 2015
VL 17
IS 2
BP 337
EP 370
DI 10.4208/cicp.111013.120914a
PG 34
WC Physics, Mathematical
SC Physics
GA CH0EY
UT WOS:000353693400002
ER
PT J
AU Peterson, DA
Hyer, EJ
Campbell, JR
Fromm, MD
Hair, JW
Butler, CF
Fenn, MA
AF Peterson, David A.
Hyer, Edward J.
Campbell, James R.
Fromm, Michchael D.
Hair, Johnathan W.
Butler, Carolyn F.
Fenn, Marta A.
TI THE 2013 RIM FIRE Implications for Predicting Extreme Fire Spread,
Pyroconvection, and Smoke Emissions
SO BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY
LA English
DT Article
ID PIXEL-BASED CALCULATION; AMERICAN BOREAL FOREST; RADIATIVE POWER; MODIS
OBSERVATIONS; UNITED-STATES; INITIAL ASSESSMENT; MODEL SIMULATIONS;
RELEASED MOISTURE; PYRO-CONVECTION; WILDLAND FIRES
C1 [Peterson, David A.] CNR, Washington, DC 20418 USA.
[Peterson, David A.; Hyer, Edward J.; Campbell, James R.] Naval Res Lab, Monterey, CA USA.
[Fromm, Michchael D.] Naval Res Lab, Washington, DC 20375 USA.
[Hair, Johnathan W.; Butler, Carolyn F.; Fenn, Marta A.] NASA, Langley Res Ctr, Hampton, VA 23665 USA.
[Butler, Carolyn F.; Fenn, Marta A.] Sci Syst & Applicat Inc, Hampton, VA USA.
RP Peterson, DA (reprint author), CNR, Naval Res Lab, 7 Grace Hopper Ave, Monterey, CA 93943 USA.
EM david.peterson.ctr@nrlmry.navy.mil
RI Campbell, James/C-4884-2012; Hyer, Edward/E-7734-2011; peterson,
david/L-2350-2016
OI Campbell, James/0000-0003-0251-4550; Hyer, Edward/0000-0001-8636-2026;
FU Naval Research Laboratory; NASA SEAC4RS program under NASA [NNH12AT27i];
NASA [NNG13HH10I]; Micro Pulse Lidar Network; SEAC4RS Science Team
FX We thank Ralph Kahn (NASA Goddard), Jeffrey Reid (Naval Research
Laboratory), Bob Yokelson (University of Montana), and the National
Weather Service in Monterey, California, for their helpful advice. We
are all grateful to Shelly Crook at the Stanislaus National Forest
Service, as well as Mark Schug, Brad Quayle, and many other USFS
employees for providing the NIROPS fire perimeter data used in this
study. We also acknowledge contributions from the NASA
SEAC4RS Science Team, especially the DIAL/HSRL lidar group,
project scientist Brian Toon, and project managers Hal Maring and
Kenneth Jucks. This research was performed while David Peterson held a
National Research Council Research Associateship Award at the Naval
Research Laboratory. Edward Hyer's contributions were supported by the
NASA SEAC4RS program under NASA Award NNH12AT27i. James
Campbell acknowledges the support of NASA Interagency Agreement
NNG13HH10I, on behalf of the Micro Pulse Lidar Network and
SEAC4RS Science Team.
NR 87
TC 16
Z9 16
U1 4
U2 27
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 FEB
PY 2015
VL 96
IS 2
BP 229
EP 247
DI 10.1175/BAMS-D-14-00060.1
PG 19
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA CG5DA
UT WOS:000353310100006
ER
PT J
AU Crouse, D
AF Crouse, David
TI Basic Tracking Using Nonlinear Continuous-Time Dynamic Models
SO IEEE AEROSPACE AND ELECTRONIC SYSTEMS MAGAZINE
LA English
DT Article
ID STOCHASTIC DIFFERENTIAL-EQUATIONS; MANEUVERING TARGET TRACKING; EXTENDED
KALMAN FILTER; GAUSS-NEWTON METHOD; RUNGE-KUTTA METHODS;
MAXIMUM-LIKELIHOOD; VARIABLE-STRUCTURE; NUMERICAL-SOLUTION; STATE
ESTIMATION; PART II
AB Physicists generally express the motion of objects in continuous time using differential equations, whereas the majority of target tracking algorithms use discrete-time models. This paper considers the use of general, nonlinear, continuous-time motion models for use in target tracking algorithms that perform measurements at specific, discrete times. The basics of solving/simulating deterministic/stochastic differential equations is reviewed. The difference between most direct-discrete and continuous-discrete tracking algorithms is the prediction step. Consequently, a number of continuous- time state prediction techniques are presented, focusing on derivative-free techniques. Consistent with common filtering techniques, such as the cubature Kalman filter, Gaussian approximations are used for the propagated state. Three dynamic models are considered for evaluating the performance of the algorithms: a highly nonlinear spiraling motion mode, a multidimensional geometric Brownian model, which has multiplicative noise, and an integrated Ornstein-Uhlenbeck process. Track initiation is also discussed.
C1 Naval Res Lab, Washington, DC 20375 USA.
RP Crouse, D (reprint author), Naval Res Lab, Attn Code 5344,4555 Overlook Ave SW, Washington, DC 20375 USA.
EM david.crouse@nrl.navy.mil
FU Office of Naval Research through the Naval Research Laboratory Base
Program (Karle Fellowship)
FX This research is supported by the Office of Naval Research through the
Naval Research Laboratory Base Program (Karle Fellowship).
NR 153
TC 3
Z9 3
U1 4
U2 8
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0885-8985
EI 1557-959X
J9 IEEE AERO EL SYS MAG
JI IEEE Aerosp. Electron. Syst. Mag.
PD FEB
PY 2015
VL 30
IS 2
BP 4
EP 41
DI 10.1109/MAES.2014.130074
PN 2
PG 38
WC Engineering, Aerospace; Engineering, Electrical & Electronic
SC Engineering
GA CF7GV
UT WOS:000352725300001
ER
PT J
AU Marmorino, G
Savelyev, I
Smith, GB
AF Marmorino, George
Savelyev, Ivan
Smith, Geoffrey B.
TI Surface thermal structure in a shallow-water, vertical discharge from a
coastal power plant
SO ENVIRONMENTAL FLUID MECHANICS
LA English
DT Article
DE Vertical jet; Cooling water outfall; Buoyant plume; Thermal bands;
Infrared remote sensing; Huntington Beach; California (USA)
ID BUOYANT JETS; PLUMES; BEHAVIOR; FRONTS
AB The surface temperature field induced by a turbulent buoyant jet, discharging upwards into shallow water and impinging on the water surface, is examined for the case of a power-plant cooling-water outfall off the southern California coast. The data, acquired using an airborne infrared camera, capture the evolution of turbulent-scale structure, as well as the advection of larger-scale patterns that can be used to infer the surface velocity. Some limited in-water measurements were also made. When the ambient, or receiving, water is relatively stagnant, the buoyant fluid moves nearly symmetrically outward from the impingement zone, and both the thermal and velocity fields decay over a radial distance of several tens of meters. Flow in this symmetric case appears to remain supercritical into the far-field, which differs from a recent numerical modeling study that predicts a near-field hydraulic jump. Within the plume, the data show an expanding set of thermal bands, similar to ring-like structures found in laboratory studies of a buoyant vertical jet having a stable near-field. In the presence of an alongshore current, both the plume and thermal bands become stretched out in the downstream direction; but this effect can be accounted for, and the thermal structure made symmetrical, by using an approximate two-dimensional model of the flow field. Characteristics of the observed thermal bands are compared against three ring-creation mechanisms proposed in the literature (jet vortex instability, horizontal shear instability, and internal bore formation), but the present dataset is insufficient to discriminate amongst them.
C1 [Marmorino, George; Savelyev, Ivan; Smith, Geoffrey B.] Naval Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
RP Marmorino, G (reprint author), Naval Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
EM marmorino@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/7230-14-0041.
NR 26
TC 0
Z9 0
U1 4
U2 10
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 1567-7419
EI 1573-1510
J9 ENVIRON FLUID MECH
JI Environ. Fluid Mech.
PD FEB
PY 2015
VL 15
IS 1
BP 207
EP 229
DI 10.1007/s10652-014-9373-0
PG 23
WC Environmental Sciences; Mechanics; Meteorology & Atmospheric Sciences;
Oceanography; Water Resources
SC Environmental Sciences & Ecology; Mechanics; Meteorology & Atmospheric
Sciences; Oceanography; Water Resources
GA CE9GX
UT WOS:000352153200011
ER
PT J
AU Hwang, PA
Stoffelen, A
van Zadelhoff, GJ
Perrie, W
Zhang, B
Li, HY
Shen, H
AF Hwang, Paul A.
Stoffelen, Ad
van Zadelhoff, Gerd-Jan
Perrie, William
Zhang, Biao
Li, Haiyan
Shen, Hui
TI Cross-polarization geophysical model function for C-band radar
backscattering from the ocean surface and wind speed retrieval
SO JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
LA English
DT Article
ID SYNTHETIC-APERTURE RADAR; VECTOR WINDS; SCATTEROMETER; WAVES; SPACE
AB The wind speed sensitivity of cross-polarization (cross-pol) radar backscattering cross section (VH) from the ocean surface increases toward high winds. The signal saturation problem of VH, if it exists, occurs at a much higher wind speed compared to the copolarization (copol: VV or HH) sea returns. These properties make VH a better choice over VV or HH for monitoring severe weather. Combined with high spatial resolution of the synthetic aperture radar (SAR), the development of hurricane wind retrieval using VH is advancing rapidly. This paper describes a cross-pol C-band radar backscattering geophysical model function (GMF) with incidence angle dependence for the full wind speed range in the available data sets (up to 56 m/s). The GMF is derived from RADARSAT-2 (R2) dual-polarization (dual-pol) ScanSAR modes with 300 and 500 km swaths. The proposed GMF is compared to other published algorithms. The result shows that the simulated VH cross section and the retrieved wind speed with the proposed GMF is in better agreement with measurements. With careful treatment of noise, the VH-retrieved wind speeds may extend to mild or moderate conditions. The higher fraction of non-Bragg contribution in VH can be exploited for analysis of surface wave breaking.
C1 [Hwang, Paul A.] Naval Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
[Stoffelen, Ad; van Zadelhoff, Gerd-Jan] Royal Netherlands Meteorol Inst, NL-3730 AE De Bilt, Netherlands.
[Perrie, William; Zhang, Biao; Li, Haiyan; Shen, Hui] Fisheries & Oceans Canada, Bedford Inst Oceanog, Dartmouth, NS B2Y 4A2, Canada.
[Zhang, Biao] Nanjing Univ Informat Sci & Technol, Sch Marine Sci, Nanjing, Jiangsu, Peoples R China.
[Li, Haiyan] Univ Chinese Acad Sci, Chinese Acad Sci, Key Lab Computat Geodynam, Beijing, Peoples R China.
[Shen, Hui] Chinese Acad Sci, Inst Oceanol, Qingdao, Peoples R China.
RP Hwang, PA (reprint author), Naval Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
EM paul.hwang@nrl.navy.mil
FU Office of Naval Research; Canadian Space Agency (GRIP Program); Chinese
National High Technology Research and Development (863) Program
[2013AA09A505]; National Science Youth Foundation of Jiangsu [BK2012467]
FX This work is supported by the Office of Naval Research ("Breaking-wave
effects under high winds'' and "Oceanic whitecaps as a surface
expression of under and above water processes: Toward an integral remote
sensing of the air-sea interface''). We thank the Canadian Space Agency
(CSA) for providing RADARSAT-2 imagery, NOAA HRD for supplying SFMR and
H*Wind, NDBC for buoy observations, ECMWF for numerical forecast winds,
and the EUMETSAT Ocean and the Sea Ice Satellite Application Facility,
which supports the KNMI work and generated collocated data sets. We also
acknowledge the support of the Canadian Space Agency (GRIP Program),
Chinese National High Technology Research and Development (863) Program
(grant 2013AA09A505), and the National Science Youth Foundation of
Jiangsu (grant BK2012467). The three data sets used in the analysis of
this paper were assembled by Biao Zhang (zhangbiao@nuist.edu.cn, BSH
data set) and Gerd-Jan van Zadelhoff (zadelhof@knmi.nl, KNMIS and KNMIE
data sets). RADARSAT-2 data distribution requires explicit permission
from CSA. The NRL publication number is NRL/JA/7260-14-0213.
NR 31
TC 10
Z9 10
U1 2
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 FEB
PY 2015
VL 120
IS 2
BP 893
EP 909
DI 10.1002/2014JC010439
PG 17
WC Oceanography
SC Oceanography
GA CE9HM
UT WOS:000352154800019
ER
PT J
AU Kim, M
Park, D
Han, DK
Ko, H
AF Kim, Minjae
Park, Dubok
Han, David K.
Ko, Hanseok
TI A Novel Approach for Denoising and Enhancement of Extremely Low-light
Video
SO IEEE TRANSACTIONS ON CONSUMER ELECTRONICS
LA English
DT Article
DE Noise reduction; tone mapping; nonlocal means; low-light video
ID ADAPTIVE HISTOGRAM EQUALIZATION; SPACE-TIME ADAPTATION; CONTRAST
ENHANCEMENT; NOISE REMOVAL; LEVEL IMAGES; FILTER
AB In this paper, a novel approach for noise reduction and enhancement of extremely low-light video is proposed. For noise removal, a motion adaptive temporal filtering based on a Kalman structured updating is presented. Dynamic range of denoised video is increased by adjustment of RGB histograms using Gamma correction with adaptive clipping thresholds. Finally, residual noise is removed using a nonlocal means (NLM) denoising filter. The proposed method works directly on the color filter array (CFA) raw video for achieving low memory consumption(1).
C1 [Kim, Minjae; Ko, Hanseok] Korea Univ, Sch Elect Engn, Seoul, South Korea.
[Park, Dubok] Korea Univ, Dept Visual Informat Proc, Seoul, South Korea.
[Han, David K.] Off Naval Res, Arlington, VA 22217 USA.
RP Kim, M (reprint author), Korea Univ, Sch Elect Engn, Seoul, South Korea.
EM mjkim@ispl.korea.ac.kr; dbpark@ispl.korea.ac.kr; ctmkhan@gmail.com;
hsko@korea.ac.kr
FU Seoul RBD Program [WR080951]; STW-KU Research Program
FX This work was supported by Seoul R&BD Program (WR080951) and in part the
STW-KU Research Program.
NR 40
TC 2
Z9 3
U1 3
U2 13
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 FEB
PY 2015
VL 61
IS 1
BP 72
EP 80
PG 9
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA CE3VU
UT WOS:000351758600010
ER
PT J
AU Li, RR
Lewis, MD
Gould, RW
Lawson, A
Amin, R
Gallegos, SC
Ladner, S
AF Li, Rong-Rong
Lewis, Mark David
Gould, Richard W., Jr.
Lawson, Adam
Amin, Ruhul
Gallegos, Sonia C.
Ladner, Sherwin
TI Inter-Comparison between VIIRS and MODIS Radiances and Ocean Color Data
Products over the Chesapeake Bay
SO REMOTE SENSING
LA English
DT Article
ID CALIBRATION; SATELLITE; PERFORMANCE
AB Since the October 2011 launch of the VIIRS (Visible Infrared Imaging Radiometer Suite) instrument, a number of inter-sensor comparisons between VIIRS and MODIS (Moderate Resolution Imaging Spectroradiometer) radiances have been reported. Most of these comparisons are between calibrated radiances and temperatures based on observations of the two sensors from simultaneous nadir overpasses (SNO). Few comparisons between the retrieved ocean color data products, such as chlorophyll concentration, from VIIRS and MODIS data have been reported. Retrievals from measured data at large solar zenith angles and large view zenith angles are excluded from these comparison studies. In this paper, we report the inter-sensor comparisons between VIIRS and MODIS data acquired over the Chesapeake Bay and nearby areas with relatively large differences in sensor view angles. The goal for this study is to check the consistency between MODIS and VIIRS ocean color data products in order to merge the products from the two sensors. We compare total radiances (Lt) at the top of atmosphere (TOA) and the ocean color (OC) data products derived with the automatic processing system (APS) from both VIIRS and MODIS data. APS was developed at the Naval Research Laboratory, Stennis Space Center (NRL/SSC). We have found that, although there are large differences between the measured radiances (Lt) of the two sensors when the sensor zenith angle differences are significant, the mean percent differences between the retrieved normalized water-leaving radiances are about 15%. The results show that the variation in satellite view zenith angles is not a main factor affecting the retrieval of ocean color data products, i.e., the atmospheric correction routine adequately removes the view-angle dependence.
C1 [Li, Rong-Rong] Naval Res Lab, Washington, DC 20375 USA.
[Lewis, Mark David; Gould, Richard W., Jr.; Lawson, Adam; Amin, Ruhul; Gallegos, Sonia C.; Ladner, Sherwin] Naval Res Lab, Stennis Space Ctr, MS 39529 USA.
RP Li, RR (reprint author), Naval Res Lab, Code 7231, Washington, DC 20375 USA.
EM rong-rong.li@nrl.navy.mil; David.Lewis@nrlssc.navy.mil;
Rick.Gould@nrlssc.navy.mil; Adam.Lawson@nrlssc.navy.mil;
Ruhul.Amin@nrlssc.navy.mil; Sonia.Gallegos@nrlssc.navy.mil;
Sherwin.Ladner@nrlssc.navy.mil
FU U.S. Naval Research Laboratory; Office of Naval Research
FX This research is supported by the U.S. Naval Research Laboratory and the
Office of Naval Research. We thank Michael Ondrusek (NOAA) for
graciously providing HyperPro data for the Chesapeake Bay.
NR 15
TC 0
Z9 0
U1 0
U2 7
PU MDPI AG
PI BASEL
PA POSTFACH, CH-4005 BASEL, SWITZERLAND
SN 2072-4292
J9 REMOTE SENS-BASEL
JI Remote Sens.
PD FEB
PY 2015
VL 7
IS 2
BP 2193
EP 2207
DI 10.3390/rs70202193
PG 15
WC Remote Sensing
SC Remote Sensing
GA CF1BZ
UT WOS:000352279900002
ER
PT J
AU Patwa, R
Herfurth, H
Bratt, C
Christophersen, M
Phlips, BF
AF Patwa, R.
Herfurth, H.
Bratt, C.
Christophersen, M.
Phlips, B. F.
TI Laser drilling of micro-hole arrays in tantalum
SO JOURNAL OF LASER APPLICATIONS
LA English
DT Article
DE laser drilling; high aspect ratio holes; high open area fraction;
tantalum; collimator; microhole; hole array
AB X ray collimator optics for space application require an array of high aspect ratio holes of 60:1 with a minimal tantalum (Ta) thickness of >= 2 mm and a very high open area fraction (hole versus wall fraction) of 70% to achieve high collimator efficiency. Each collimator with a drilled area of 110 mm x 70 mm contains several million holes and need a fast drilling process. Laser percussion drilling was performed using an IR pulsed disk laser in a 1 and 2 mm thick Ta plate. A tightly spaced hexagonal closed packed pattern was used to maximize open area fraction with hole-to-hole spacing as small as 80 mu m. However, this resulted in a high concentration of debris and a thick recast layer on the remaining walls between the holes. Different process gases were investigated to minimize debris formation and reduce the recast layer thickness. Ramping of pulse energy during the drill cycle was investigated to minimize the adhesion between the substrate and recast layer. Chemical etching was used to remove the debris and recast from the top surface and the inside of the laser-drilled holes. Hole cross sections showed that a high aspect ratio was achieved with a hole diameter of about empty set50 mu m in 2 mm thick Ta. To achieve the shortest drilling time of 200 ms per hole, the process parameters were optimized and a hybrid nozzle, with both horizontal and vertical gas flow, was developed and implemented. (C) 2015 Laser Institute of America.
C1 [Patwa, R.; Herfurth, H.; Bratt, C.] Fraunhofer USA, Ctr Laser Applicat, Plymouth, MI 48170 USA.
[Christophersen, M.; Phlips, B. F.] US Naval Res Lab, Washington, DC 20375 USA.
RP Patwa, R (reprint author), Fraunhofer USA, Ctr Laser Applicat, Plymouth, MI 48170 USA.
RI Christophersen, Marc/B-6795-2008
FU U.S. Naval Research Laboratory; Fraunhofer USA
FX This work is funded by U.S. Naval Research Laboratory through a
collaborative research program. Fraunhofer USA greatly acknowledges the
support.
NR 7
TC 0
Z9 0
U1 2
U2 12
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 1042-346X
EI 1938-1387
J9 J LASER APPL
JI J. Laser Appl.
PD FEB
PY 2015
VL 27
SU 2
SI SI
AR S28006
DI 10.2351/1.4906470
PG 6
WC Materials Science, Multidisciplinary; Optics; Physics, Applied
SC Materials Science; Optics; Physics
GA CC7JV
UT WOS:000350544500007
ER
PT J
AU Mukherjee, B
Tseng, F
Gunlycke, D
Amara, KK
Eda, G
Simsek, E
AF Mukherjee, Bablu
Tseng, Frank
Gunlycke, Daniel
Amara, Kiran Kumar
Eda, Goki
Simsek, Ergun
TI Complex electrical permittivity of the monolayer molybdenum disulfide
(MoS2) in near UV and visible
SO OPTICAL MATERIALS EXPRESS
LA English
DT Article
ID LAYERS; PHOTOLUMINESCENCE
AB Temperature and Fermi energy dependent exciton eigenenergies of monolayer molybdenum disulfide (MoS2) are calculated using an atomistic model. These exciton eigen-energies are used as the resonance frequencies of a hybrid Lorentz-Drude-Gaussian model, in which oscillation strengths and damping coefficients are obtained from the experimental results for the differential transmission and reflection spectra of monolayer MoS2 coated quartz and silicon substrates, respectively. Numerical results compared to experimental results found in the literature reveal that the developed permittivity model can successfully represent the monolayer MoS2 under different biasing conditions at different temperatures for the design and simulation of MoS2 based opto-electronic devices. (C) 2015 Optical Society of America
C1 [Mukherjee, Bablu; Simsek, Ergun] George Washington Univ, Washington, DC 20052 USA.
[Tseng, Frank; Gunlycke, Daniel] Naval Res Lab, Washington, DC 20375 USA.
[Amara, Kiran Kumar; Eda, Goki] Natl Univ Singapore, Singapore 117548, Singapore.
RP Mukherjee, B (reprint author), George Washington Univ, Washington, DC 20052 USA.
EM simsek@gwu.edu
RI Eda, Goki/G-1511-2012; Mukherjee, Bablu/C-7203-2009
OI Mukherjee, Bablu/0000-0002-5625-5948
FU Office of Naval Research (ONR); NRL through the ONR Summer Faculty
Program; NRC Research Associateship Program
FX This work has been funded by the Office of Naval Research (ONR),
directly and through the Naval Research Laboratory (NRL). E. S. and F.
T. acknowledge support from NRL through the ONR Summer Faculty Program
and the NRC Research Associateship Program, respectively.
NR 25
TC 21
Z9 21
U1 2
U2 22
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 FEB 1
PY 2015
VL 5
IS 2
BP 447
EP 455
DI 10.1364/OME.5.000447
PG 9
WC Materials Science, Multidisciplinary; Optics
SC Materials Science; Optics
GA CC9CC
UT WOS:000350664100027
ER
PT J
AU Jones, B
Apruzese, JP
Harvey-Thompson, AJ
Ampleford, DJ
Jennings, CA
Hansen, SB
Moore, NW
Lamppa, DC
Johnson, D
Jones, MC
Waisman, EM
Coverdale, CA
Cuneo, ME
Rochau, GA
Giuliani, JL
Thornhill, JW
Ouart, ND
Chong, YK
Velikovich, AL
Dasgupta, A
Krishnan, M
Coleman, PL
AF Jones, B.
Apruzese, J. P.
Harvey-Thompson, A. J.
Ampleford, D. J.
Jennings, C. A.
Hansen, S. B.
Moore, N. W.
Lamppa, D. C.
Johnson, D.
Jones, M. C.
Waisman, E. M.
Coverdale, C. A.
Cuneo, M. E.
Rochau, G. A.
Giuliani, J. L.
Thornhill, J. W.
Ouart, N. D.
Chong, Y. K.
Velikovich, A. L.
Dasgupta, A.
Krishnan, M.
Coleman, P. L.
TI The effect of gradients at stagnation on K-shell x-ray line emission in
high-current Ar gas-puff implosions
SO PHYSICS OF PLASMAS
LA English
DT Article
ID STARK-PROFILE CALCULATIONS; Z-PINCH; DENSE-PLASMAS; Z MACHINE; ARGON;
RADIATION; PHYSICS
AB Argon gas puffs have produced 330 kJ +/- 9% of x-ray radiation above 3 keV photon energy in fast z-pinch implosions, with remarkably reproducible K-shell spectra and power pulses. This reproducibility in x-ray production is particularly significant in light of the variations in instability evolution observed between experiments. Soft x-ray power measurements and K-shell line ratios from a time-resolved spectrum at peak x-ray power suggest that plasma gradients in these high-mass pinches may limit the K-shell radiating mass, K-shell power, and K-shell yield from high-current gas puffs. (C) 2015 AIP Publishing LLC.
C1 [Jones, B.; Harvey-Thompson, A. J.; Ampleford, D. J.; Jennings, C. A.; Hansen, S. B.; Moore, N. W.; Lamppa, D. C.; Johnson, D.; Jones, M. C.; Waisman, E. M.; Coverdale, C. A.; Cuneo, M. E.; Rochau, G. A.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[Apruzese, J. P.] Engility Corp, Chantilly, VA 20151 USA.
[Giuliani, J. L.; Thornhill, J. W.; Ouart, N. D.; Chong, Y. K.; Velikovich, A. L.; Dasgupta, A.] Naval Res Lab, Washington, DC 20375 USA.
[Krishnan, M.] Alameda Appl Sci Corp, San Leandro, CA 94577 USA.
[Coleman, P. L.] Evergreen Hill Sci, Philomath, OR 97370 USA.
RP Jones, B (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA.
EM bmjones@sandia.gov
FU Defense Threat Reduction Agency; U.S. Department of Energy's National
Nuclear Security Administration [DE-AC04-94AL85000]
FX The authors would like to thank the Z operations and diagnostics teams,
and the Z and System Integration Test Facility (SITF) gas-puff team, for
supporting these experiments. Gas nozzle assembly and characterization
at SITF was supported by the Defense Threat Reduction Agency, and we
acknowledge in particular, S. W. Seiler, J. F. Davis, and Major K.
Brown. We also acknowledge valuable discussions with Yitzhak Maron of
the Weizmann Institute. Sandia National Laboratories is a multi-program
laboratory managed and operated by Sandia Corporation, a wholly owned
subsidiary of Lockheed Martin Corporation, for the U.S. Department of
Energy's National Nuclear Security Administration under Contract No.
DE-AC04-94AL85000.
NR 32
TC 9
Z9 9
U1 0
U2 9
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 1070-664X
EI 1089-7674
J9 PHYS PLASMAS
JI Phys. Plasmas
PD FEB
PY 2015
VL 22
IS 2
AR 020706
DI 10.1063/1.4913350
PG 5
WC Physics, Fluids & Plasmas
SC Physics
GA CC7MN
UT WOS:000350552000006
ER
PT J
AU Swanekamp, SB
Richardson, AS
Angus, JR
Cooperstein, G
Hinshelwood, DD
Ottinger, PF
Rittersdorf, IM
Schumer, JW
Weber, BV
Zier, JC
AF Swanekamp, S. B.
Richardson, A. S.
Angus, J. R.
Cooperstein, G.
Hinshelwood, D. D.
Ottinger, P. F.
Rittersdorf, I. M.
Schumer, J. W.
Weber, B. V.
Zier, J. C.
TI Controlling hollow relativistic electron beam orbits with an inductive
current divider
SO PHYSICS OF PLASMAS
LA English
DT Article
ID IMPEDANCE
AB A passive method for controlling the trajectory of an intense, hollow electron beam is proposed using a vacuum structure that inductively splits the beam's return current. A central post carries a portion of the return current (I-1), while the outer conductor carries the remainder (I-2). An envelope equation appropriate for a hollow electron beam is derived and applied to the current divider. The force on the beam trajectory is shown to be proportional to (I-2-I-1), while the average force on the envelope (the beam width) is proportional to the beam current I-b = (I-2+I-1). The values of I-1 and I-2 depend on the inductances in the return-current path geometries. Proper choice of the return-current geometries determines these inductances and offers control over the beam trajectory. Solutions using realistic beam parameters show that, for appropriate choices of the return-current-path geometry, the inductive current divider can produce a beam that is both pinched and straightened so that it approaches a target at near-normal incidence with a beam diameter that is on the order of a few mm. (C) 2015 AIP Publishing LLC.
C1 [Swanekamp, S. B.; Richardson, A. S.; Angus, J. R.; Cooperstein, G.; Hinshelwood, D. D.; Ottinger, P. F.; Rittersdorf, I. M.; Schumer, J. W.; Weber, B. V.; Zier, J. C.] Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
RP Swanekamp, SB (reprint author), Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
OI Angus, Justin/0000-0003-1474-0002; Ottinger, Paul/0000-0001-9901-7379
FU Office of Naval Research; Sandia National Laboratories; U.S. Department
of Energy's National Nuclear Security Administration [DE-AC04-94AL85000]
FX This work was supported by the Office of Naval Research and Sandia
National Laboratories. Sandia Corporation is a wholly owned subsidiary
of Lockheed Martin Company, for the U.S. Department of Energy's National
Nuclear Security Administration under Contract No. DE-AC04-94AL85000.
NR 16
TC 1
Z9 1
U1 0
U2 2
PU AMER INST PHYSICS
PI MELVILLE
PA 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
SN 1070-664X
EI 1089-7674
J9 PHYS PLASMAS
JI Phys. Plasmas
PD FEB
PY 2015
VL 22
IS 2
AR 023107
DI 10.1063/1.4907663
PG 9
WC Physics, Fluids & Plasmas
SC Physics
GA CC7MN
UT WOS:000350552000101
ER
PT J
AU Sandstrom, MM
Brown, GW
Preston, DN
Pollard, CJ
Warner, KF
Sorensen, DN
Remmers, DL
Phillips, JJ
Shelley, TJ
Reyes, JA
Hsu, PC
Reynolds, JG
AF Sandstrom, Mary M.
Brown, Geoffrey W.
Preston, Daniel N.
Pollard, Colin J.
Warner, Kirstin F.
Sorensen, Daniel N.
Remmers, Daniel L.
Phillips, Jason J.
Shelley, Timothy J.
Reyes, Jose A.
Hsu, Peter C.
Reynolds, John G.
TI Variation of Methods in Small-Scale Safety and Thermal Testing of
Improvised Explosives
SO PROPELLANTS EXPLOSIVES PYROTECHNICS
LA English
DT Article
DE Small-scale safety testing; Homemade explosives; Improvised explosives;
Impact; Friction; Electrostatic discharge
ID INITIATION; IMPACT
AB One of the first steps in establishing safe handling procedures for explosives is small-scale safety and thermal (SSST) testing. To better understand the response of homemade or improvised explosives (HMEs) to SSST testing, 16 HME materials were compared to three standard military explosives in a proficiency-type round robin study among five laboratories, two U.S. Department of Defense and three U.S. Department of Energy, sponsored by the Department of Homeland Security, Science & Technology Directorate, Explosives Division. The testing included impact, friction, electrostatic discharge (ESD) and thermal. The testing matrix was designed to address problems encountered with improvised materials: powder mixtures, liquid suspensions, partially wetted solids, immiscible liquids, and reactive materials. All testing materials and/or precursors came from the same batch distributed to each of the participants and were handled, pretreated, and mixed by standardized procedures. For this proficiency test, the participants had similar equipment, usually differing by vintage. This allowed for a direct comparison of the results from each participant to the average of the results from all the participants. Some general trends observed for each series of tests were: (1) Drop hammer - LLNL usually found the materials less sensitive than the average with materials that have high sensitivity to impact and LANL usually found the materials less sensitive than the average with materials that have high sensitivity to impact; (2) friction - LLNL found the materials less sensitive than the average; (3) and ESD - IHD usually found the materials less sensitive than the average. In this report, the proficiency test data from all the participants is compared and contrasted for impact, selected friction, and ESD testing. Other friction and thermal data will be addressed elsewhere as well as the statistical analysis of several repeated measurements on the proficiency test standards.
C1 [Sandstrom, Mary M.; Brown, Geoffrey W.; Preston, Daniel N.; Pollard, Colin J.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Warner, Kirstin F.; Sorensen, Daniel N.; Remmers, Daniel L.] Naval Surface Warfare Ctr, Indian Head, Indian Head, MD USA.
[Phillips, Jason J.] Sandia Natl Labs, Albuquerque, NM 87185 USA.
[Shelley, Timothy J.] Bur Alcohol Tobacco & Firearms, Redstone Arsenal, AL USA.
[Reyes, Jose A.] Appl Res Associates, Tyndall AFB, FL USA.
[Hsu, Peter C.; Reynolds, John G.] Lawrence Livermore Natl Lab, Livermore, CA USA.
RP Sandstrom, MM (reprint author), Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
EM reynolds3@llnl.gov
FU Los Alamos National Laboratory; Lawrence Livermore National Laboratory;
Sandia National Laboratories; Air Force Research Laboratory; Indian Head
Division, Naval Surface Warfare; U.S. Department of Homeland Security,
Science and Technology Directorate, Explosives Division; U.S. Department
of Energy [DE-AC52-06NA25396]; U.S. Department of Energy's National
Nuclear Security Administration [DE-AC04-94AL85000]; U.S. Department of
Energy by Lawrence Livermore National Laboratory [DE-AC52-07NA27344];
Air Force Research Laboratory [HSHQDC10X00414. LLNL-JRNL-649574
(769520)]; Indian Head Division, Naval Surface Warfare [HSHQDC10X00414.
LLNL-JRNL-649574 (769520)]
FX The authors thank Doug Bauer, Laura J. Parker and Greg Struba for their
enthusiastic support. This work was performed by the Integrated Data
Collection Analysis (IDCA) Program, a five-lab effort supported by Los
Alamos National Laboratory, Lawrence Livermore National Laboratory,
Sandia National Laboratories, the Air Force Research Laboratory, and
Indian Head Division, Naval Surface Warfare under sponsorship of the
U.S. Department of Homeland Security, Science and Technology
Directorate, Explosives Division. Los Alamos National Laboratory is
operated by Los Alamos National Security, LLC, for the U.S. Department
of Energy under Contract DE-AC52-06NA25396. Sandia is a multi-program
laboratory operated by Sandia Corporation, a Lockheed Martin Company,
for the U.S. Department of Energy's National Nuclear Security
Administration under Contract DE-AC04-94AL85000. This work was performed
under the auspices of the U.S. Department of Energy by Lawrence
Livermore National Laboratory under Contract DE-AC52-07NA27344. The Air
Force Research Laboratory and Indian Head Division, Naval Surface
Warfare also performed work in support of this effort under contract
HSHQDC10X00414. LLNL-JRNL-649574 (769520).
NR 35
TC 4
Z9 5
U1 3
U2 14
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA POSTFACH 101161, 69451 WEINHEIM, GERMANY
SN 0721-3115
EI 1521-4087
J9 PROPELL EXPLOS PYROT
JI Propellants Explos. Pyrotech.
PD FEB
PY 2015
VL 40
IS 1
BP 109
EP 126
DI 10.1002/prep.201400108
PG 18
WC Chemistry, Applied; Engineering, Chemical
SC Chemistry; Engineering
GA CC7LS
UT WOS:000350549700016
ER
PT J
AU Mao, MY
Owen, F
Duffin, R
Keel, B
Lacy, M
Momjian, E
Morrison, G
Mroczkowski, T
Neff, S
Norris, RP
Schmitt, H
Toy, V
Veilleux, S
AF Mao, Minnie Y.
Owen, Frazer
Duffin, Ryan
Keel, Bill
Lacy, Mark
Momjian, Emmanuel
Morrison, Glenn
Mroczkowski, Tony
Neff, Susan
Norris, Ray P.
Schmitt, Henrique
Toy, Vicki
Veilleux, Sylvain
TI J1649+2635: a grand-design spiral with a large double-lobed radio source
SO MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
LA English
DT Article
DE galaxies: active; galaxies: general; galaxies: jets; galaxies: spiral;
radio continuum: galaxies
ID ACTIVE GALACTIC NUCLEI; ULTRALUMINOUS INFRARED GALAXIES; SUPERMASSIVE
BLACK-HOLES; DIGITAL-SKY-SURVEY; ELLIPTIC GALAXIES; STAR-FORMATION;
X-RAY; SEYFERT-GALAXIES; DYNAMICAL PROPERTIES; LUMINOSITY FUNCTIONS
AB We report the discovery of a grand-design spiral galaxy associated with a double-lobed radio source. J1649+2635 (z = 0.0545) is a red spiral galaxy with a prominent bulge that it is associated with a L-1.4GHz similar to 10(24) W Hz(-1) double-lobed radio source that spans almost 100 kpc. J1649+2635 has a black hole mass of M-BH similar to 3-7 x 10(8) M-circle dot and SFR similar to 0.26-2.6 M-circle dot yr(-1). The galaxy hosts an similar to 96 kpc diffuse optical halo, which is unprecedented for spiral galaxies. We find that J1649+2635 resides in an overdense environment with a mass of M-dyn = 7.7(-4.3)(+7.9) x 10(13) M-circle dot, likely a galaxy group below the detection threshold of the ROSAT All-Sky Survey. We suggest one possible scenario for the association of double-lobed radio emission from J1649+2635 is that the source may be similar to a Seyfert galaxy, located in a denser-than-normal environment. The study of spiral galaxies that host large-scale radio emission is important because although rare in the local Universe, these sources may be more common at high redshifts.
C1 [Mao, Minnie Y.; Owen, Frazer; Duffin, Ryan; Momjian, Emmanuel] Natl Radio Astron Observ, Socorro, NM 87801 USA.
[Duffin, Ryan] Univ Virginia, Charlottesville, VA 22904 USA.
[Keel, Bill] Univ Alabama, Dept Phys & Astron, Tuscaloosa, AL 35487 USA.
[Lacy, Mark] Natl Radio Astron Observ, Charlottesville, VA 22903 USA.
[Morrison, Glenn] Univ Hawaii, Inst Astron, Manoa, HI 96822 USA.
[Morrison, Glenn] Canada France Hawaii Telescope Corp, Kamuela, HI 96743 USA.
[Mroczkowski, Tony; Schmitt, Henrique] Naval Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
[Neff, Susan] NASA, Goddard Space Flight Ctr, Lab Observat Cosmol, Greenbelt, MD 20771 USA.
[Norris, Ray P.] CSIRO Astron & Space Sci, Epping, NSW 1710, Australia.
[Toy, Vicki; Veilleux, Sylvain] Univ Maryland, Dept Astron, College Pk, MD 20742 USA.
[Veilleux, Sylvain] Univ Maryland, Joint Space Sci Inst, College Pk, MD 20742 USA.
RP Mao, MY (reprint author), Natl Radio Astron Observ, POB O, Socorro, NM 87801 USA.
EM mmao@nrao.edu
RI Norris, Ray/A-1316-2008;
OI Norris, Ray/0000-0002-4597-1906; Mroczkowski, Tony/0000-0003-3816-5372
FU NSF [AST-1005313]; National Research Council Research Associateship
Award at the Naval Research Laboratory
FX The National Radio Astronomy Observatory is a facility of the National
Science Foundation operated under cooperative agreement by Associated
Universities, Inc. RD was a summer student at the National Radio
Astronomy Observatory. The portion of this research for which TM is
responsible was performed while he held a National Research Council
Research Associateship Award at the Naval Research Laboratory. These
results made use of the DCT at Lowell Observatory. Lowell is a private,
non-profit institution dedicated to astrophysical research and public
appreciation of astronomy and operates the DCT in partnership with
Boston University, the University of Maryland, the University of Toledo
and Northern Arizona University. The NSF funded the construction of the
LMI under grant AST-1005313.
NR 87
TC 12
Z9 12
U1 1
U2 1
PU OXFORD UNIV PRESS
PI OXFORD
PA GREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
SN 0035-8711
EI 1365-2966
J9 MON NOT R ASTRON SOC
JI Mon. Not. Roy. Astron. Soc.
PD FEB
PY 2015
VL 446
IS 4
BP 4176
EP 4185
DI 10.1093/mnras/stu2302
PG 10
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA CC3TH
UT WOS:000350272400073
ER
PT J
AU Pizzini, M
Lin, S
Ziegenfuss, DE
AF Pizzini, Mina
Lin, Shu
Ziegenfuss, Douglas E.
TI The Impact of Internal Audit Function Quality and Contribution on Audit
Delay
SO AUDITING-A JOURNAL OF PRACTICE & THEORY
LA English
DT Article
DE audit delay; audit report timeliness; internal audit contribution;
internal audit quality
ID EXTERNAL AUDITORS; EARNINGS ANNOUNCEMENTS; CONTROL DEFICIENCIES;
RELIANCE DECISION; TIMELINESS; DISCLOSURE; SERVICES; FEES
AB The number of days required to complete financial statement audits (i.e., audit delay) increased significantly with the implementation of Section 404 of the Sarbanes-Oxley Act (SOX, U.S. House of Representatives 2002). As firms in-house experts on internal control, Internal Audit Functions (IAFs) can substantially affect financial reporting processes and, thus, audit delay. Internal auditors can help management maintain strong internal controls and assist external auditors with financial statement audits. Accordingly, we investigate whether IAF quality and the IAF's contribution to financial statement audits affect audit delay in a sample of 292 firm-year observations drawn from the pre-SOX 404 period.
Using survey data from the Institute of Internal Auditors (IIA), we develop a comprehensive proxy for IAF quality; we measure different aspects of IAF quality (e.g., competence, objectivity, fieldwork rigor); and we measure the nature of the IAF's contribution to financial statement audits (independently performed work and direct assistance). Results indicate audit delay is decreasing in IAF quality, and this decrease is driven by IAF competence and fieldwork quality. Delay is four days shorter when IAFs contribute to external audits by independently performing relevant work. High-quality IAFs contribute to financial statement audits by independently performing relevant work, while low-quality IAFs provide direct assistance.
C1 [Pizzini, Mina] Naval Postgrad Sch, Monterey, CA 93943 USA.
[Lin, Shu] Calif State Univ Fresno, Fresno, CA 93740 USA.
[Ziegenfuss, Douglas E.] Old Dominion Univ, Norfolk, VA 23529 USA.
RP Pizzini, M (reprint author), Naval Postgrad Sch, Monterey, CA 93943 USA.
NR 55
TC 4
Z9 4
U1 11
U2 38
PU AMER ACCOUNTING ASSOC
PI SARASOTA
PA 5717 BESSIE DR, SARASOTA, FL 34233 USA
SN 0278-0380
EI 1558-7991
J9 AUDITING-J PRACT TH
JI Audit.-J. Pract. Theory
PD FEB
PY 2015
VL 34
IS 1
BP 25
EP 58
DI 10.2308/ajpt-50848
PG 34
WC Business, Finance
SC Business & Economics
GA CB7JV
UT WOS:000349803700003
ER
PT J
AU Pu, LN
Luo, Y
Mo, HN
Le, S
Peng, Z
Cui, JH
Jiang, ZH
AF Pu, Lina
Luo, Yu
Mo, Haining
Le, Son
Peng, Zheng
Cui, Jun-Hong
Jiang, Zaihan
TI Comparing underwater MAC protocols in real sea experiments
SO COMPUTER COMMUNICATIONS
LA English
DT Article
DE Underwater acoustic networks (UANs); Sea experiment evaluation; MAC
performance comparison
ID ACOUSTIC CHANNELS; SENSOR NETWORKS; COMMUNICATION
AB Underwater acoustic networks (UANs) have drawn significant attention from both academia and industry in recent years. Even though a number of underwater MAC protocols have been proposed and studied based on simulations and theoretical analysis, few work has been conducted to test these protocols in multi-hop real sea experiments. Due to the complex multipath environment, fast varying acoustic channel and heterogenous link condition, it is difficult for existing network simulators to evaluate the performance of MAC protocols in the real world. This paper presents the results of a multi-hop sea experiment comparing three representative MAC protocols: random access based UW-Aloha, handshaking based SASHA, and scheduling based PMAC. From the experiments, we identified several problems that have never been well studied before, such as heterogeneous packet delivery, temporal and spatial transmission range uncertainty, multi-hop interference and delayed data transmissions. Discussions are provided based on the new discoveries, in hopes of giving some meaningful insights into the practical MAC design for real multi-hop networks. (C) 2014 Elsevier B.V. All rights reserved.
C1 [Pu, Lina; Luo, Yu; Mo, Haining; Le, Son; Peng, Zheng; Cui, Jun-Hong] Univ Connecticut, Dept Comp Sci & Engn, Storrs, CT 06029 USA.
[Jiang, Zaihan] US Navy, Res Lab, Acoust Div, Washington, DC 20375 USA.
RP Luo, Y (reprint author), Univ Connecticut, Dept Comp Sci & Engn, Storrs, CT 06029 USA.
EM lina.pu@engr.uconn.edu; yu.luo@engr.uconn.edu;
haining.mo@engr.uconn.edu; sonle@engr.uconn.edu;
zhengpeng@engr.uconn.edu; jcui@engr.uconn.edu
FU US National Science Foundation [1018422, 1127084, 1205665, 1128581,
1208499, 1331851]
FX This work is supported in part by the US National Science Foundation
under Grant Nos. 1018422, 1127084, 1205665, 1128581, 1208499, and
1331851.
NR 34
TC 5
Z9 6
U1 6
U2 20
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0140-3664
EI 1873-703X
J9 COMPUT COMMUN
JI Comput. Commun.
PD FEB 1
PY 2015
VL 56
BP 47
EP 59
DI 10.1016/j.comcom.2014.09.006
PG 13
WC Computer Science, Information Systems; Engineering, Electrical &
Electronic; Telecommunications
SC Computer Science; Engineering; Telecommunications
GA CC1CG
UT WOS:000350078200005
ER
PT J
AU Hardy, CL
Glass, JS
Sorrells, T
Nicholas, LC
AF Hardy, Curtis Lamar
Glass, Jonathan S.
Sorrells, Timothy
Nicholas, Luke C.
TI Hemorrhagic Panniculitis Caused by Delayed Microemboli From
Intravascular Device
SO JAMA DERMATOLOGY
LA English
DT Article
ID EMBOLIZATION
AB IMPORTANCE The breakdown of previously inserted intravascular devices can lead to microemboli that can clinically mimic the symptoms of common disorders, such as senile purpura, and have subtle histologic findings. However, device failure can occur gradually and start months after placement. If not identified early, microemboli to noncutaneous sites can cause significant morbidity and mortality.
OBSERVATIONS A woman in her 70s presented 6 months after a complex aortic aneurysm repair with several large ecchymoses radiating from firm subcutaneous nodules on the buttocks, arms, and thighs. Skin biopsy specimens revealed extensive hemorrhage and a panniculitis with sparse, subtle, intra-arteriole, gray amorphous deposits that, on analysis by scanning electron microscopy with energy-dispersive radiography analysis and infrared spectrometry, were most consistent with a hydrophilic polymer. This type of hydrophilic polymer coats catheters and stents such as those used in aortic aneurysm repair.
CONCLUSIONS AND RELEVANCE This is an unusual case of microemboli from the polymer coating intra-arterial stents starting months after placement and causing a panniculitis. Prior observations show that polymers coating intravascular devices have the potential to break down gradually and long after the device's placement, but clinical consideration for delayed microembolization is underrecognized until catastrophic impairment or death.
C1 [Hardy, Curtis Lamar] Naval Med Ctr Portsmouth, Dept Grad Med Educ, Portsmouth, VA 23708 USA.
[Glass, Jonathan S.; Nicholas, Luke C.] Naval Med Ctr Portsmouth, Dept Dermatol, Portsmouth, VA 23708 USA.
[Sorrells, Timothy] Naval Med Ctr Portsmouth, Dept Pathol, Portsmouth, VA 23708 USA.
RP Hardy, CL (reprint author), Naval Med Ctr Portsmouth, Dept Grad Med Educ, 620 John Paul Jones Cir, Portsmouth, VA 23708 USA.
EM curtis.hardy@me.com
NR 8
TC 2
Z9 2
U1 0
U2 0
PU AMER MEDICAL ASSOC
PI CHICAGO
PA 330 N WABASH AVE, STE 39300, CHICAGO, IL 60611-5885 USA
SN 2168-6068
EI 2168-6084
J9 JAMA DERMATOL
JI JAMA Dermatol.
PD FEB
PY 2015
VL 151
IS 2
BP 204
EP 207
DI 10.1001/jamadermatol.2014.2393
PG 4
WC Dermatology
SC Dermatology
GA CB6RL
UT WOS:000349754200020
PM 25271487
ER
PT J
AU Alappattu, DP
Wang, Q
AF Alappattu, Denny P.
Wang, Qing
TI Correction of Depth Bias in Upper-Ocean Temperature and Salinity
Profiling Measurements from Airborne Expendable Probes
SO JOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY
LA English
DT Article
ID FALL-RATE; XBT DATA; BATHYTHERMOGRAPH; SIPPICAN; EQUATION; T-7; TSK
AB During the Dynamics of Madden Julian Oscillation (DYNAMO) Experiment in 2011, airborne expendable conductivity temperature depth (AXCTD) probes and airborne expendable bathythermographs (AXBTs) were deployed using NOAA's WP-3D Orion aircraft over the southern tropical Indian Ocean. From initial analysis of the AXCTD data, about 95% of profiles exhibit double mixed layer structures. The presence of a mixed layer from some of these profiles were erroneous and were introduced because of the AXCTD processing software not being able to correctly identify the starting point of the probe descent. This work reveals the impact of these errors in data processing and presents an objective method to remove such erroneous data from the profiles using spectrograms from raw audio files. Reconstructed AXCTD/AXBT profiles are compared with collocated shipbome conductivity temperature depth (CTD) and expendable bathythermograph (XBT) profiles and are found to be in good agreement.
C1 [Alappattu, Denny P.; Wang, Qing] Naval Postgrad Sch, Dept Meteorol, Monterey, CA 93943 USA.
RP Alappattu, DP (reprint author), Naval Postgrad Sch, Dept Meteorol, 589 Dyer Rd,Root Hall, Monterey, CA 93943 USA.
EM dpalappa@nps.edu
RI Alappattu, Denny/A-3825-2016
OI Alappattu, Denny/0000-0002-1432-057X
FU ONR [N0001413WX20025]; NSF [AGS1062300]; National Research Council
FX This work was supported by ONR Award N0001413WX20025 and partly by NSF
Award AGS1062300. Denny P. Alappattu is sponsored by the National
Research Council research associateship program. Discussions and input
from Grant Johnson and Peter Black were very helpful. The hard work of
Lt. David Tramp, LCDR Heather Hornick Quilenderino, and LCDR Robin Corey
Cherrett in data collection and processing are greatly appreciated. Dr.
James Mourn of Oregon State University provided the CTD cast data from
R/V Revelle.
NR 33
TC 1
Z9 1
U1 0
U2 4
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 FEB
PY 2015
VL 32
IS 2
BP 247
EP 255
DI 10.1175/JTECH-D-14-00114.1
PG 9
WC Engineering, Ocean; Meteorology & Atmospheric Sciences
SC Engineering; Meteorology & Atmospheric Sciences
GA CB6NE
UT WOS:000349742900006
ER
PT J
AU Panteleev, G
Yaremchuk, M
Stroh, J
Posey, P
Hebert, D
Nechaev, DA
AF Panteleev, Gleb
Yaremchuk, Max
Stroh, Jacob
Posey, Pamela
Hebert, David
Nechaev, Dmitri A.
TI Optimization of the High-Frequency Radar Sites in the Bering Strait
Region
SO JOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY
LA English
DT Article
ID SURFACE CURRENTS; ADJOINT SENSITIVITY; CHUKCHI SEA; CIRCULATION;
NETWORK; MODEL; RECONSTRUCTION; TRANSPORT; PACIFIC; SYSTEM
AB Monitoring surface currents by coastal high-frequency radars (HFRs) is a cost-effective observational technique with good prospects for further development. An important issue in improving the efficiency of HER systems is the optimization of radar positions on the coastline. Besides being constrained by environmental and logistic factors, such optimization has to account for prior knowledge of local circulation and the target quantities (such as transports through certain key sections) with respect to which the radar positions are to be optimized.
In the proposed methodology, prior information of the regional circulation is specified by the solution of the 4D variational assimilation problem, where the available climatological data in the Bering Strait (BS) region are synthesized with dynamical constraints of a numerical model. The optimal HFR placement problem is solved by maximizing the reduction of a posteriori error in the mass, heat, and salt (MHS) transports through the target sections in the region. It is shown that the MHS transports into the Arctic and their redistribution within the Chukchi Sea are best monitored by placing HFRs at Cape Prince of Wales and on Little Diomede Island. Another equally efficient configuration involves placement of the second radar at Sinuk (western Alaska) in place of Diomede. Computations show that 1) optimization of the HFR deployment yields a significant (1.3-3 times) reduction of the transport errors compared to nonoptimal positioning of the radars and 2) error reduction provided by two HFRs is an order of magnitude better than the one obtained from three moorings permanently maintained in the region for the last 5 yr. This result shows a significant advantage of BS monitoring by I-LFRs compared to the more traditional technique of in situ moored observations. The obtained results are validated by an extensive set of observing system simulation experiments.
C1 [Panteleev, Gleb] Univ Alaska Fairbanks, Int Arctic Res Ctr, Fairbanks, AK 99775 USA.
[Panteleev, Gleb] Natl Res Tomsk Polytech Univ, Tomsk, Russia.
[Yaremchuk, Max; Posey, Pamela; Hebert, David] Naval Res Lab, Stennis Space Ctr, MS USA.
[Stroh, Jacob] Univ Alaska Fairbanks, Fairbanks, AK USA.
[Nechaev, Dmitri A.] Univ So Mississippi, Hattiesburg, MS 39406 USA.
RP Panteleev, G (reprint author), Univ Alaska Fairbanks, POB 757340, Fairbanks, AK 99775 USA.
EM gleb@iarc.uaf.edu
FU International Arctic Research Center, UAF, NSF [1107925, 1203740];
Office of Naval Research [0602435N]; Gulf of Mexico Research Initiative
through the Consortium for Advanced Research on Transport of Hydrocarbon
in the Environment (CARTHE); Russian Government [2013-220-04-157]
FX This study was funded by the International Arctic Research Center, UAF,
NSF Grants 1107925 and 1203740. It was also supported by the Office of
Naval Research (Program Element 0602435N, project "Adjoint-free 4dVar
for ocean models"), by a grant from the Gulf of Mexico Research
Initiative through the Consortium for Advanced Research on Transport of
Hydrocarbon in the Environment (CARTHE), and by a mega-grant of the
Russian Government (Grant 2013-220-04-157).
NR 45
TC 0
Z9 0
U1 0
U2 0
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 FEB
PY 2015
VL 32
IS 2
BP 297
EP 309
DI 10.1175/JTECH-D-14-00071.1
PG 13
WC Engineering, Ocean; Meteorology & Atmospheric Sciences
SC Engineering; Meteorology & Atmospheric Sciences
GA CB6NE
UT WOS:000349742900009
ER
PT J
AU Greene, AD
Hendricks, PJ
Gregg, MC
AF Greene, A. D.
Hendricks, P. J.
Gregg, M. C.
TI Using an ADCP to Estimate Turbulent Kinetic Energy Dissipation Rate in
Sheltered Coastal Waters
SO JOURNAL OF ATMOSPHERIC AND OCEANIC TECHNOLOGY
LA English
DT Article
ID MICROSTRUCTURE; PROFILER; VELOCITY; FLUID; OCEAN; SILL
AB Turbulent microstructure and acoustic Doppler current profiler (ADCP) data were collected near Tacoma Narrows in Puget Sound, Washington. Over 100 coincident microstructure profiles have been compared to ADCP estimates of turbulent kinetic energy dissipation rate (epsilon). ADCP dissipation rates were calculated using the large-eddy method with theoretically determined corrections for sensor noise on rms velocity and integral-scale calculations. This work is an extension of Ann Gargett's approach, which used a narrowband ADCP in regions with intense turbulence and strong vertical velocities. Here, a broadband AD CP is used to measure weaker turbulence and achieve greater horizontal and vertical resolution relative to the narrowband AD CP. Estimates of e from the Modular Microstructure Profiler (MMP) and broadband ADCP show good quantitative agreement over nearly three decades of dissipation rate, 3 x 10(-8)-10(-5) m(2) s(-3). This technique is most readily applied when the turbulent velocity is greater than the ADCP velocity uncertainty (sigma) and the ADCP cell size is within a factor of 2 of the Thorpe scale. The 600-kHz broadband ADCP used in this experiment yielded a noise floor of 3 mm s(-1) for 3-m vertical bins and 2-m along-track average (approximate to four pings), which resulted in turbulence levels measureable with the ADCP as weak as 3 x 10(-8) m(2) s(-3). The value and trade-off of changing the ADCP cell size, which reduces noise but also changes the ratio of the Thorpe scale to the cell size, are discussed as well.
C1 [Greene, A. D.; Hendricks, P. J.] Naval Undersea Warfare Ctr, Newport, RI 02841 USA.
[Gregg, M. C.] Univ Washington, Appl Phys Lab, Seattle, WA 98105 USA.
RP Greene, AD (reprint author), Naval Undersea Warfare Ctr, 1176 Howell St, Newport, RI 02841 USA.
EM andrew.d.greene@navy.mil
FU Section 219 funding [40000011560/0010]
FX The authors thank the crew of the R/V Miller. We also thank Jesse Hansen
for his help with ADCP processing and Derrick Custodio for his thorough
review of the manuscript. This analysis was supported by Section 219
funding under Contract 40000011560/0010.
NR 18
TC 0
Z9 0
U1 2
U2 10
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 FEB
PY 2015
VL 32
IS 2
BP 318
EP 333
DI 10.1175/JTECH-D-13-00207.1
PG 16
WC Engineering, Ocean; Meteorology & Atmospheric Sciences
SC Engineering; Meteorology & Atmospheric Sciences
GA CB6NE
UT WOS:000349742900011
ER
PT J
AU Charipar, KM
Charipar, NA
Bellemare, JV
Peak, JE
Pique, A
AF Charipar, Kristin M.
Charipar, Nicholas A.
Bellemare, James V.
Peak, Joseph E.
Pique, Alberto
TI Electrowetting Displays Utilizing Bistable, Multi-Color Pixels Via Laser
Processing
SO JOURNAL OF DISPLAY TECHNOLOGY
LA English
DT Article
DE Bistable; displays; electrowetting; laser processing; microfabrication;
multi-color
ID PAPER; INK
AB Electronic paper, or e-Paper, for use in displays has seen rapid growth in the past decade because of its potential as an alternative to traditional transmissive displays. Offering several critical advantages over current display technologies, including high contrast in direct sunlight, wide viewing angles, and compatibility with flexible substrate processing, electrowetting displays (EWDs) have made it to the forefront of e-Paper research and development efforts. Here, we describe a new design for the fabrication of multi-color, bistable electrowetting displays. Using a laser-based process to pattern an in-plane electrode design, liquid can be manipulated out-of-plane. This process relies on electromechanical pressure forcing water in and out of channels, causing colored oil to be displaced. When voltage is removed, the oil remains in its current position, resulting in bistability. We have demonstrated multi-color, bistable pixels that maintain their state at V = 0 for several days, which drastically reduces the power required to drive the display.
C1 [Charipar, Kristin M.; Charipar, Nicholas A.; Pique, Alberto] Naval Res Lab, Mat Sci & Technol Div, Washington, DC 20375 USA.
[Bellemare, James V.; Peak, Joseph E.] Naval Res Lab, Tact Elect Warfare Div, Washington, DC 20375 USA.
RP Charipar, KM (reprint author), Naval Res Lab, Mat Sci & Technol Div, Washington, DC 20375 USA.
EM kristin.charipar@nrl.navy.mil
FU Office of Naval Research (ONR) through the Naval Research Laboratory
Basic Research Program
FX This work was funded by the Office of Naval Research (ONR) through the
Naval Research Laboratory Basic Research Program.
NR 24
TC 2
Z9 2
U1 4
U2 31
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1551-319X
EI 1558-9323
J9 J DISP TECHNOL
JI J. Disp. Technol.
PD FEB
PY 2015
VL 11
IS 2
SI SI
BP 175
EP 182
DI 10.1109/JDT.2014.2364189
PG 8
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA CB8PN
UT WOS:000349893100009
ER
PT J
AU Tanaka, YT
Doi, A
Inoue, Y
Cheung, CC
Stawarz, L
Fukazawa, Y
Gurwell, MA
Tahara, M
Kataoka, J
Itoh, R
AF Tanaka, Y. T.
Doi, A.
Inoue, Y.
Cheung, C. C.
Stawarz, L.
Fukazawa, Y.
Gurwell, M. A.
Tahara, M.
Kataoka, J.
Itoh, R.
TI SIX YEARS OF FERMI-LAT AND MULTI-WAVELENGTH MONITORING OF THE BROAD-LINE
RADIO GALAXY 3C 120: JET DISSIPATION AT SUB-PARSEC SCALES FROM THE
CENTRAL ENGINE
SO ASTROPHYSICAL JOURNAL LETTERS
LA English
DT Article
DE galaxies: active; galaxies: individual (3C 120); galaxies: jets;
radiation mechanisms: non-thermal; radio continuum: galaxies;
gamma-rays: galaxies
ID ACTIVE GALACTIC NUCLEI; GAMMA-RAY EMISSION; RELATIVISTIC JETS;
BLACK-HOLE; ACCRETION DISKS; ORIGIN; POWER; VARIABILITY; CONNECTION;
LUMINOSITY
AB We present multi-wavelength monitoring results for the broad-line radio galaxy 3C 120 in the MeV/GeV, sub-millimeter, and 43 GHz bands over 6 yr. Over the past 2 yr, the Fermi-Large Area Telescope sporadically detected 3C 120 with high significance and the 230 GHz data also suggest an enhanced activity of the source. After the MeV/GeV detection from 3C 120 in MJD 56240-56300, 43 GHz Very Long Baseline Array (VLBA) monitoring revealed a brightening of the radio core, followed by the ejection of a superluminal knot. Since we observed the gamma-ray and VLBA phenomena in temporal proximity to each other, it is naturally assumed that they are physically connected. This assumption was further supported by the subsequent observation that the 43 GHz core brightened again after a gamma-ray flare occurred around MJD 56560. We can then infer that the MeV/GeV emission took place inside an unresolved 43 GHz core of 3C 120 and that the jet dissipation occurred at sub-parsec distances from the central black hole (BH), if we take the distance of the 43 GHz core from the central BH as similar to 0.5 pc, as previously estimated from the time lag between X-ray dips and knot ejections. Based on our constraints on the relative locations of the emission regions and energetic arguments, we conclude that the gamma rays are more favorably produced via the synchrotron self-Compton process, rather than inverse Compton scattering of external photons coming from the broad line region or hot dusty torus. We also derived the electron distribution and magnetic field by modeling the simultaneous broadband spectrum.
C1 [Tanaka, Y. T.] Hiroshima Univ, Hiroshima Astrophys Sci Ctr, Higashihiroshima 7398526, Japan.
[Doi, A.; Inoue, Y.; Stawarz, L.] JAXA, Inst Space & Astronaut Sci, Sagamihara, Kanagawa 2525210, Japan.
[Cheung, C. C.] Naval Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Stawarz, L.] Jagiellonian Univ, Astron Observ, PL-30244 Krakow, Poland.
[Fukazawa, Y.; Itoh, R.] Hiroshima Univ, Dept Phys Sci, Hiroshima 7398526, Japan.
[Gurwell, M. A.] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA.
[Tahara, M.; Kataoka, J.] Waseda Univ, Res Inst Sci & Engn, Tokyo 1698555, Japan.
RP Tanaka, YT (reprint author), Hiroshima Univ, Hiroshima Astrophys Sci Ctr, 1-3-1 Kagamiyama, Higashihiroshima 7398526, Japan.
EM ytanaka@hep01.hepl.hiroshima-u.ac.jp
OI Inoue, Yoshiyuki/0000-0002-7272-1136
FU NASA; DOE (United States); CEA/Irfu; IN2P3/CNRS (France); ASI; INFN
(Italy); MEXT (Japan); KEK (Japan); JAXA (Japan); K. A. Wallenberg
Foundation; Swedish Research Council; National Space Board (Sweden);
INAF (Italy); CNES (France); NASA through the Fermi-LAT Guest
Investigator Program; Smithsonian Institution; Academia Sinica; NASA DPR
[S-15633]; Polish NSC [DEC-2012/04/A/ST9/00083]
FX The Fermi-LAT Collaboration acknowledges support for LAT development,
operation, and data analysis from NASA and DOE (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). Science analysis support
in the operations phase from INAF (Italy) and CNES (France) is also
gratefully acknowledged. This study makes use of 43 GHz VLBA data from
the VLBA-BU Blazar Monitoring Program (VLBA-BU-BLAZAR;
http://www.bu.edu/blazars/VLBAproject.html), funded by NASA through the
Fermi-LAT Guest Investigator Program. The VLBA is an instrument of the
National Radio Astronomy Observatory, a facility of the National Science
Foundation operated by Associated Universities, Inc. The Submillimeter
Array is a joint project between the Smithsonian Astrophysical
Observatory and the Academia Sinica Institute of Astronomy and
Astrophysics and is funded by the Smithsonian Institution and the
Academia Sinica. C.C.C. was supported at NRL by NASA DPR S-15633 Y.L.S.
was supported by Polish NSC grant DEC-2012/04/A/ST9/00083.
NR 32
TC 7
Z9 7
U1 0
U2 0
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 FEB 1
PY 2015
VL 799
IS 2
AR L18
DI 10.1088/2041-8205/799/2/L18
PG 6
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA CB0KS
UT WOS:000349315400004
ER
PT J
AU Miladi, A
Thomas, BC
Beasley, K
Meyerle, J
AF Miladi, Anis
Thomas, Brian C.
Beasley, Knox
Meyerle, Jon
TI Angioimmunoblastic T-cell Lymphoma Presenting as Purpura Fulminans
SO CUTIS
LA English
DT Article
ID CUTANEOUS INVOLVEMENT; LYMPHADENOPATHY
AB Purpura fulminans is a nonspecific hematologic emergency with high initial mortality, representing a thrombotic occlusion of blood vessels leading to skin necrosis and disseminated intravascular coagulation, and often reported in the setting of sepsis. We report a case of nonfatal purpura fulminans in the context of angioimmunoblastic T-cell lymphoma (AITL).
C1 [Miladi, Anis] Naval Med Ctr Portsmouth, Dept Dermatol, Portsmouth, VA 23708 USA.
[Thomas, Brian C.] Tennessee River Dermatol, Florence, Alabama, Italy.
[Beasley, Knox] William Beaumont Army Med Ctr, El Paso, TX 79920 USA.
[Meyerle, Jon] Uniformed Serv Univ Hlth Sci, Bethesda, MD 20814 USA.
RP Miladi, A (reprint author), Naval Med Ctr Portsmouth, Dept Dermatol, 620 John Paul Jones Circle, Portsmouth, VA 23708 USA.
EM anis.miladi@med.navy.mil
NR 7
TC 1
Z9 1
U1 0
U2 0
PU QUADRANT HEALTHCOM INC
PI PARSIPPANY
PA 7 CENTURY DRIVE, STE 302, PARSIPPANY, NJ 07054-4603 USA
SN 0011-4162
EI 2326-6929
J9 CUTIS
JI Cutis
PD FEB
PY 2015
VL 95
IS 2
BP 113
EP 115
PG 3
WC Dermatology
SC Dermatology
GA CB5IM
UT WOS:000349660700011
PM 25750965
ER
PT J
AU Rothert, J
AF Rothert, Jacek
TI Monitoring, moral hazard, and turnover
SO ECONOMIC THEORY
LA English
DT Article
DE Learning; Reputation; Political instability; Principal-agent
ID CONTRACTS; GROWTH
AB I studied the effects of monitoring on political turnover, when the politicians' early actions affect future economic outcomes. I considered an infinite-horizon environment, where the expectation about the potential successor's policy is endogenous. As a result, the incentive to replace the incumbent is endogenous. In a stationary Markov equilibrium, the relationship between monitoring and turnover is non-monotone. The model sheds light on dynamic agency problems when the agent's initial effort has persistent effects, and on the role of reputation in models with endogenous turnover.
C1 US Naval Acad, Dept Econ, Annapolis, MD 21402 USA.
RP Rothert, J (reprint author), US Naval Acad, Dept Econ, 589 McNair Rd, Annapolis, MD 21402 USA.
EM jacek.rothert@gmail.com
FU University of Minnesota
FX Financial support from the University of Minnesota Graduate Research
Partnership Program Fellowship is gratefully acknowledged.
NR 19
TC 0
Z9 0
U1 1
U2 7
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 0938-2259
EI 1432-0479
J9 ECON THEOR
JI Econ. Theory
PD FEB
PY 2015
VL 58
IS 2
BP 355
EP 374
DI 10.1007/s00199-014-0823-1
PG 20
WC Economics
SC Business & Economics
GA CB4WT
UT WOS:000349629800006
ER
PT J
AU Ringeisen, BR
Rincon, K
Fitzgerald, LA
Fulmer, PA
Wu, PK
AF Ringeisen, Bradley R.
Rincon, Karina
Fitzgerald, Lisa A.
Fulmer, Preston A.
Wu, Peter K.
TI Printing soil: a single-step, high-throughput method to isolate
micro-organisms and near-neighbour microbial consortia from a complex
environmental sample
SO METHODS IN ECOLOGY AND EVOLUTION
LA English
DT Article
DE microbial ecology; microbial isolation; unculturable; high throughput;
biological laser printing; cell printing; microbial consortia
ID UNCULTURED MICROORGANISMS; SEDIMENT BIODIVERSITY; ESCHERICHIA-COLI;
LASER; CELLS; BACTERIA; DIVERSITY; CULTIVATION; PATTERNS; STRESS
AB Traditional high throughput methods for isolating microorganisms from environmental samples such as soil or sediment require pre-processing steps to remove the living species from their solid-phase microniche, creating a liquid-phase sample. This process destroys near-neighbor relationships that could be crucial to culturing and studying the microorganisms to be isolated. An automated, high throughput method is described here that isolates pure microbial cultures and spatially related microbial consortia directly from a solid-phase complex environmental sample. By using an orifice-free printing mechanism, Biological Laser Printing (BioLP) enabled single-step isolation of viable environmental microorganisms directly from soil. Soil was spread onto a titania-coated quartz plate prior to initiating printing of soil micro-particles with focused ultraviolet laser pulses. Tunable amounts of soil were printed to glass slides, Luria Bertani agar plates and broth filled 96-well plates at deposition rates exceeding 20 micro-particles per second, demonstrating the ability to isolate thousands of micro-particles of soil in minutes. Viability, culturability and significant morphological diversity were demonstrated post-printing. Results show that single step soil printing can be used to (a) generate pure microbial cultures (isolates), and (b) isolate consortia from a micro-ecological system that exists naturally in near-neighbor proximity, undisturbed from the environmental sample.
C1 [Ringeisen, Bradley R.; Fitzgerald, Lisa A.; Fulmer, Preston A.] Naval Res Lab, Div Chem, Washington, DC 20375 USA.
[Rincon, Karina] Florida Int Univ, Dept Elect & Comp Engn, Miami, FL 33174 USA.
[Wu, Peter K.] Southern Oregon Univ, Dept Phys & Engn, Ashland, OR 97520 USA.
RP Ringeisen, BR (reprint author), Naval Res Lab, Div Chem, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM ringeisen@nrl.navy.mil
FU Office of Naval Research through Naval Research Laboratory [6.2, 6.1];
National Science Foundation
FX The authors would like to thank the Office of Naval Research for
sponsoring this research through Naval Research Laboratory 6.2 and 6.1
funds. KR thanks the National Science Foundation for funding her summer
internship at NRL.
NR 39
TC 1
Z9 2
U1 9
U2 64
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 2041-210X
EI 2041-2096
J9 METHODS ECOL EVOL
JI Methods Ecol. Evol.
PD FEB
PY 2015
VL 6
IS 2
BP 209
EP 217
DI 10.1111/2041-210X.12303
PG 9
WC Ecology
SC Environmental Sciences & Ecology
GA CB4WD
UT WOS:000349628100010
ER
PT J
AU Tsai, JW
Simonetti, JH
Akukwe, B
Bear, B
Cutchin, SE
Dowell, J
Gough, JD
Kanner, J
Kassim, NE
Schinzel, FK
Shawhan, P
Taylor, GB
Yancey, CC
Quezada, L
Kavic, M
AF Tsai, Jr-Wei
Simonetti, John H.
Akukwe, Bernadine
Bear, Brandon
Cutchin, Sean E.
Dowell, Jayce
Gough, Jonathan D.
Kanner, Jonah
Kassim, Namir E.
Schinzel, Frank K.
Shawhan, Peter
Taylor, Gregory B.
Yancey, Cregg C.
Quezada, Leandro
Kavic, Michael
TI OBSERVATIONS OF GIANT PULSES FROM PULSAR B0950+08 USING LWA1
SO ASTRONOMICAL JOURNAL
LA English
DT Article
DE pulsars: general; pulsars: individual (PSR B0950+08); scattering
ID LOW-FREQUENCY; MILLISECOND PULSAR; RADIO PULSARS; PSR B0950+08;
POLARIZATION; SCATTERING; EMISSION; MHZ; SCINTILLATION; POLARIMETRY
AB We report the detection of giant pulse (GP) emission from PSR B0950+08 in 24 hours of observations made at 39.4 MHz, with a bandwidth of 16 MHz, using the first station of the Long Wavelength Array. We detected 119 GPs from PSR B0950+08 (at its dispersion measure (DM)), which we define as having a signal-to-noise ratio at least 10 times larger than for the mean pulse in our data set. These 119 pulses are 0.035% of the total number of pulse periods in the 24 hours of observations. The rate of GPs is about 5.0 per hour. The cumulative distribution of pulse strength S is a steep power law, N(>S) proportional to S-4.7, but much less steep than would be expected if we were observing the tail of a Gaussian distribution of normal pulses. We detected no other transient pulses in a DM range from 1 to 90 pc cm(-3), in the beam tracking PSR B0950+08. The GPs have a narrower temporal width than the mean pulse (17.8 ms, on average, versus 30.5 ms). The pulse widths are consistent with a previously observed weak dependence on observing frequency, which may be indicative of a deviation from a Kolmogorov spectrum of electron density irregularities along the line of sight. The rate and strength of these GPs is less than has been observed at similar to 100 MHz. Additionally, the mean (normal) pulse flux density we observed is less than at similar to 100 MHz. These results suggest this pulsar is weaker and produces less frequent GPs at 39 MHz than at 100 MHz.
C1 [Tsai, Jr-Wei; Simonetti, John H.; Bear, Brandon] Virginia Tech, Dept Phys, Blacksburg, VA 24061 USA.
[Akukwe, Bernadine; Quezada, Leandro; Kavic, Michael] Long Isl Univ, Dept Phys, Brooklyn, NY 11201 USA.
[Cutchin, Sean E.] NRC NRL Postdoctoral Fellow, Washington, DC 20375 USA.
[Dowell, Jayce; Schinzel, Frank K.; Taylor, Gregory B.] Univ New Mexico, Dept Phys & Astron, Albuquerque, NM 87131 USA.
[Gough, Jonathan D.] Long Isl Univ, Dept Chem & Biochem, Brooklyn, NY 11201 USA.
[Kanner, Jonah] CALTECH, LIGO, Pasadena, CA 91125 USA.
[Kassim, Namir E.] Naval Res Lab, Washington, DC 20375 USA.
[Shawhan, Peter; Yancey, Cregg C.] Univ Maryland, Dept Phys, College Pk, MD 20742 USA.
RP Tsai, JW (reprint author), Virginia Tech, Dept Phys, Blacksburg, VA 24061 USA.
OI Kanner, Jonah/0000-0001-8115-0577
FU Office of Naval Research [N00014-07-C-0147]; National Science Foundation
of the University Radio Observatory program [AST-1139974, AST-1139963];
NSF [PHY-1068549, PHY-1404121]
FX We acknowledge insightful discussions with S. W. Elling-son, T. J. W.
Lazio, and P. S. Ray. 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 and AST-1139963 of
the University Radio Observatory program. Part of this research was
performed while S. E. Cutchin held a NRC research appointment at NRL.
Basic research in radio astronomy at NRL is supported by 6.1 base
funding. P. S. and C. C. Y. have been supported by NSF grants
PHY-1068549 and PHY-1404121.
NR 46
TC 4
Z9 4
U1 0
U2 1
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0004-6256
EI 1538-3881
J9 ASTRON J
JI Astron. J.
PD FEB
PY 2015
VL 149
IS 2
AR 65
DI 10.1088/0004-6256/149/2/65
PG 10
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA CB1BA
UT WOS:000349360200030
ER
PT J
AU Abdo, AA
Ackermann, M
Ajello, M
Allafort, A
Amin, MA
Baldini, L
Barbiellini, G
Bastieri, D
Bechtol, K
Bellazzini, R
Blandford, RD
Bonamente, E
Borgland, AW
Bregeon, J
Brigida, M
Buehler, R
Bulmash, D
Buson, S
Caliandro, GA
Cameron, RA
Caraveo, PA
Cavazzuti, E
Cecchi, C
Charles, E
Cheung, CC
Chiang, J
Chiaro, G
Ciprini, S
Claus, R
Cohen-Tanugi, J
Conrad, J
Corbet, RHD
Cutini, S
D'Ammando, F
de Angelis, A
de Palma, F
Dermer, CD
Drell, PS
Drlica-Wagner, A
Favuzzi, C
Finke, J
Focke, WB
Fukazawa, Y
Fusco, P
Gargano, F
Gasparrini, D
Gehrels, N
Giglietto, N
Giordano, F
Giroletti, M
Glanzman, T
Grenier, IA
Grove, JE
Guiriec, S
Hadasch, D
Hayashida, M
Hays, E
Hughes, RE
Inoue, Y
Jackson, MS
Jogler, T
Johannesson, G
Johnson, AS
Kamae, T
Knodlseder, J
Kuss, M
Lande, J
Larsson, S
Latronico, L
Longo, F
Loparco, F
Lott, B
Lovellette, MN
Lubrano, P
Madejski, GM
Mazziotta, MN
Mehault, J
Michelson, PF
Mizuno, T
Monzani, ME
Morselli, A
Moskalenko, IV
Murgia, S
Nemmen, R
Nuss, E
Ohno, M
Ohsugi, T
Paneque, D
Perkins, JS
Pesce-Rollins, M
Piron, F
Pivato, G
Porter, TA
Raino, S
Rando, R
Razzano, M
Reimer, A
Reimer, O
Reyes, LC
Ritz, S
Romoli, C
Roth, M
Parkinson, PMS
Sgro, C
Siskind, EJ
Spandre, G
Spinelli, P
Takahashi, H
Takeuchi, Y
Tanaka, T
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
Waite, AP
Werner, M
Winer, BL
Wood, KS
AF Abdo, A. A.
Ackermann, M.
Ajello, M.
Allafort, A.
Amin, M. A.
Baldini, L.
Barbiellini, G.
Bastieri, D.
Bechtol, K.
Bellazzini, R.
Blandford, R. D.
Bonamente, E.
Borgland, A. W.
Bregeon, J.
Brigida, M.
Buehler, R.
Bulmash, D.
Buson, S.
Caliandro, G. A.
Cameron, R. A.
Caraveo, P. A.
Cavazzuti, E.
Cecchi, C.
Charles, E.
Cheung, C. C.
Chiang, J.
Chiaro, G.
Ciprini, S.
Claus, R.
Cohen-Tanugi, J.
Conrad, J.
Corbet, R. H. D.
Cutini, S.
D'Ammando, F.
de Angelis, A.
de Palma, F.
Dermer, C. D.
Drell, P. S.
Drlica-Wagner, A.
Favuzzi, C.
Finke, J.
Focke, W. B.
Fukazawa, Y.
Fusco, P.
Gargano, F.
Gasparrini, D.
Gehrels, N.
Giglietto, N.
Giordano, F.
Giroletti, M.
Glanzman, T.
Grenier, I. A.
Grove, J. E.
Guiriec, S.
Hadasch, D.
Hayashida, M.
Hays, E.
Hughes, R. E.
Inoue, Y.
Jackson, M. S.
Jogler, T.
Johannesson, G.
Johnson, A. S.
Kamae, T.
Knoedlseder, J.
Kuss, M.
Lande, J.
Larsson, S.
Latronico, L.
Longo, F.
Loparco, F.
Lott, B.
Lovellette, M. N.
Lubrano, P.
Madejski, G. M.
Mazziotta, M. N.
Mehault, J.
Michelson, P. F.
Mizuno, T.
Monzani, M. E.
Morselli, A.
Moskalenko, I. V.
Murgia, S.
Nemmen, R.
Nuss, E.
Ohno, M.
Ohsugi, T.
Paneque, D.
Perkins, J. S.
Pesce-Rollins, M.
Piron, F.
Pivato, G.
Porter, T. A.
Raino, S.
Rando, R.
Razzano, M.
Reimer, A.
Reimer, O.
Reyes, L. C.
Ritz, S.
Romoli, C.
Roth, M.
Parkinson, P. M. Saz
Sgro, C.
Siskind, E. J.
Spandre, G.
Spinelli, P.
Takahashi, H.
Takeuchi, Y.
Tanaka, T.
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.
Waite, A. P.
Werner, M.
Winer, B. L.
Wood, K. S.
TI GAMMA-RAY FLARING ACTIVITY FROM THE GRAVITATIONALLY LENSED BLAZAR PKS
1830-211 OBSERVED BY Fermi LAT
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE gamma rays: galaxies; gamma rays: general; gravitational lensing:
strong; quasars: individual (PKS 1830-211); radiation mechanisms:
non-thermal; X-rays: individual (PKS 1830-211)
ID LARGE-AREA TELESCOPE; EINSTEIN RING PKS-1830-211; MOLECULAR
ABSORPTION-LINES; RADIO-SOURCE PKS1830-211; X-RAY; TIME-DELAY; GALACTIC
NUCLEI; SOURCE CATALOG; LIGHT CURVES; 3C 454.3
AB The Large Area Telescope ( LAT) on board the FermiGamma- ray Space Telescope routinely detects the MeV- peaked flat- spectrum radio quasar PKS 1830- 211 ( z = 2.507). Its apparent isotropic. - ray luminosity ( E > 100 MeV), averaged over 3 years of observations and peaking on 2010 October 14/ 15 at 2.9 x 1050 erg s- 1, makes it among the brightest high- redshift Fermi blazars. No published model with a single lens can account for all of the observed characteristics of this complex system. Based on radio observations, one expects time- delayed variability to follow about 25 days after a primary flare, with flux about a factor of 1.5 less. Two large. - ray flares of PKS 1830- 211 have been detected by the LAT in the considered period, and no substantial evidence for such a delayed activity was found. This allows us to place a lower limit of about 6 on the. - ray flux ratio between the two lensed images. Swift XRT observations from a dedicated Target of Opportunity program indicate a hard spectrum with no significant correlation of X- ray flux with the. - ray variability. The spectral energy distribution can be modeled with inverse Compton scattering of thermal photons from the dusty torus. The implications of the LAT data in terms of variability, the lack of evident delayed flare events, and different radio and. - ray flux ratios are discussed. Microlensing effects, absorption, size and location of the emitting regions, the complex mass distribution of the system, an energy- dependent inner structure of the source, and flux suppression by the lens galaxy for one image path may be considered as hypotheses for understanding our results.
C1 [Abdo, A. A.] George Mason Univ, Coll Sci, Ctr Earth Observing & Space Res, Fairfax, VA 22030 USA.
[Ackermann, M.; Buehler, R.] DESY, D-15738 Zeuthen, Germany.
[Ajello, M.] Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA.
[Allafort, A.; Bechtol, K.; Blandford, R. D.; Borgland, A. W.; Caliandro, G. A.; Cameron, R. A.; Charles, E.; Chiang, J.; Claus, R.; Drell, P. S.; Focke, W. B.; Glanzman, T.; Inoue, Y.; Jogler, T.; Johnson, A. S.; Kamae, T.; Lande, J.; Madejski, G. M.; Michelson, P. F.; Monzani, M. E.; Moskalenko, I. V.; Paneque, D.; Porter, T. A.; Reimer, A.; Reimer, O.; Thayer, J. G.; Thayer, J. B.; Tibaldo, L.; Usher, T. L.; Vandenbroucke, J.; Waite, A. P.] Stanford Univ, Dept Phys, Kavli Inst Particle Astrophys & Cosmol, WW Hansen Expt Phys Lab, Stanford, CA 94305 USA.
[Allafort, A.; Bechtol, K.; Blandford, R. D.; Borgland, A. W.; Caliandro, G. A.; Cameron, R. A.; Charles, E.; Chiang, J.; Claus, R.; Drell, P. S.; Focke, W. B.; Glanzman, T.; Inoue, Y.; Jogler, T.; Johnson, A. S.; Kamae, T.; Lande, J.; Madejski, G. M.; Michelson, P. F.; Monzani, M. E.; Moskalenko, I. V.; Paneque, D.; Porter, T. A.; Reimer, A.; Reimer, O.; Thayer, J. G.; Thayer, J. B.; Tibaldo, L.; Usher, T. L.; Vandenbroucke, J.; Vianello, G.; Waite, A. P.] Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA.
[Amin, M. A.] Univ Cambridge, Kavli Inst Cosmol, Cambridge CB3 0HA, England.
[Amin, M. A.] Univ Cambridge, Inst Astron, Cambridge CB3 0HA, England.
[Amin, M. A.; Bulmash, D.] MIT, Dept Phys, Cambridge, MA 02138 USA.
[Baldini, L.; Bellazzini, R.; Kuss, M.; Pesce-Rollins, M.; Razzano, M.; Sgro, C.; Spandre, G.; Tinivella, M.] Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy.
[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.
[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.
[Bregeon, J.; Cohen-Tanugi, J.; Nuss, E.; Piron, F.; Vasileiou, V.] Univ Montpellier 2, Lab Univers & Particules Montpellier, CNRS, IN2P3, Montpellier, France.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Giglietto, N.; Giordano, F.; Loparco, 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.; Loparco, 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.; Loparco, F.; Mazziotta, M. N.; Raino, S.; Spinelli, P.] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy.
[Bulmash, D.] Stanford Univ, Dept Phys, Stanford, CA 94305 USA.
[Caliandro, G. A.] Consorzio Interuniv Fis Spaziale, I-10133 Turin, Italy.
[Caraveo, P. A.] INAF Ist Astrofis Spaziale & Fis Cosm, I-20133 Milan, Italy.
[Cavazzuti, E.; Ciprini, S.; Cutini, S.; Gasparrini, D.] Agenzia Spaziale Italiana, Sci Data Ctr, I-00133 Rome, Italy.
[Cheung, C. C.; Dermer, C. D.; Finke, J.; Grove, J. E.; Lovellette, M. N.; Wood, K. S.] Naval Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Ciprini, S.; Cutini, S.; Gasparrini, D.] Ist Nazl Astrofis, Osservatorio Astron Roma, I-00040 Rome, Italy.
[Conrad, J.; Larsson, S.] Stockholm Univ, AlbaNova, Dept Phys, SE-10691 Stockholm, Sweden.
[Conrad, J.; Jackson, M. S.; Larsson, S.] AlbaNova, Oskar Klein Ctr Cosmoparticle Phys, SE-10691 Stockholm, Sweden.
[Conrad, J.] Royal Swedish Acad Sci, SE-10405 Stockholm, Sweden.
[Corbet, R. H. D.; Nemmen, R.] Ctr Res & Explorat Space Sci & Technol, Greenbelt, MD 20771 USA.
[Corbet, R. H. D.; Nemmen, R.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Corbet, R. H. D.; Nemmen, R.] Univ Maryland Baltimore Cty, Dept Phys, Baltimore, MD 21250 USA.
[Corbet, R. H. D.; Nemmen, R.] Univ Maryland Baltimore Cty, Ctr Space Sci & Technol, Baltimore, MD 21250 USA.
[D'Ammando, F.; Giroletti, 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, Sez Trieste, Grp Coll Udine, I-33100 Udine, Italy.
[Drlica-Wagner, A.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.
[Fukazawa, Y.; Ohno, M.; Takahashi, H.] Hiroshima Univ, Dept Phys Sci, Higashihiroshima, Hiroshima 7398526, Japan.
[Gehrels, N.; Guiriec, S.; Hays, E.; Nemmen, R.; Perkins, J. S.; Thompson, D. J.; Troja, E.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Grenier, I. A.] Univ Paris Diderot, Lab AIM, CEA IRFU CNRS, Serv Astrophys,CEA Saclay, F-91191 Gif Sur Yvette, France.
[Hadasch, D.; Reimer, A.; Reimer, O.; Werner, M.] Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria.
[Hadasch, D.; Reimer, A.; Reimer, O.; Werner, M.] Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria.
[Hayashida, M.] Univ Tokyo, Inst Cosm Ray Res, Kashiwa, Chiba 2778582, Japan.
[Hughes, R. E.; Winer, B. L.] Ohio State Univ, Ctr Cosmol & Astroparticle Phys, Dept Phys, Columbus, OH 43210 USA.
[Jackson, M. S.] KTH Royal Inst Technol, AlbaNova, Dept Phys, SE-10691 Stockholm, Sweden.
[Johannesson, G.] Univ Iceland, Inst Sci, IS-107 Reykjavik, Iceland.
[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.
[Lott, B.; Mehault, J.] Univ Bordeaux 1, Ctr Etud Nucl Bordeaux Gradignan, CNRS, IN2P3, F-33175 Gradignan, France.
[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.
[Murgia, S.] Univ Calif Irvine, Dept Phys & Astron, Ctr Cosmol, Irvine, CA 92697 USA.
[Paneque, D.] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany.
[Reyes, L. C.] Calif Polytech State Univ San Luis Obispo, Dept Phys, San Luis Obispo, CA 93401 USA.
[Ritz, S.; Parkinson, P. M. Saz] Univ Calif Santa Cruz, Dept Phys, Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA.
[Ritz, S.; Parkinson, P. M. Saz] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA.
[Roth, M.] Univ Washington, Dept Phys, Seattle, WA 98195 USA.
[Parkinson, P. M. Saz] Univ Hong Kong, Dept Phys, Hong Kong, Hong Kong, Peoples R China.
[Siskind, E. J.] NYCB Real Time Comp Inc, Lattingtown, NY 11560 USA.
[Takeuchi, Y.] Waseda Univ, Res Inst Sci & Engn, Shinjuku Ku, Tokyo 1698555, Japan.
[Tanaka, T.] Kyoto Univ, Dept Phys, Grad Sch Sci, Kyoto 606, Japan.
[Torres, D. F.] Inst Ciencies Espai IEEE CSIC, E-08193 Barcelona, Spain.
[Torres, D. F.] Inst Catalana Recerca & Estudis Avancats, Barcelona, Spain.
[Troja, E.] Univ Maryland, Dept Phys, College Pk, MD 20742 USA.
[Troja, E.] Univ Maryland, Dept Astron, College Pk, MD 20742 USA.
[Vitale, V.] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy.
RP Ciprini, S (reprint author), Agenzia Spaziale Italiana, Sci Data Ctr, I-00133 Rome, Italy.
EM sara.buson@pd.infn.it; stefano.ciprini@asdc.asi.it;
dammando@ira.inaf.it; justin.finke@nrl.navy.mil
RI Nemmen, Rodrigo/O-6841-2014; Morselli, Aldo/G-6769-2011; Reimer,
Olaf/A-3117-2013; Johannesson, Gudlaugur/O-8741-2015; 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; Torres, Diego/O-9422-2016;
OI Sgro', Carmelo/0000-0001-5676-6214; SPINELLI, Paolo/0000-0001-6688-8864;
Bastieri, Denis/0000-0002-6954-8862; Pesce-Rollins,
Melissa/0000-0003-1790-8018; Giroletti, Marcello/0000-0002-8657-8852;
Baldini, Luca/0000-0002-9785-7726; Morselli, Aldo/0000-0002-7704-9553;
Reimer, Olaf/0000-0001-6953-1385; Johannesson,
Gudlaugur/0000-0003-1458-7036; 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; Torres, Diego/0000-0002-1522-9065;
Giordano, Francesco/0000-0002-8651-2394; Caraveo,
Patrizia/0000-0003-2478-8018
NR 95
TC 10
Z9 10
U1 2
U2 7
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
EI 1538-4357
J9 ASTROPHYS J
JI Astrophys. J.
PD FEB 1
PY 2015
VL 799
IS 2
AR 143
DI 10.1088/0004-637X/799/2/143
PG 14
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA CA3QH
UT WOS:000348820900030
ER
PT J
AU Lin, K
Ching, A
Roeland, E
Ma, J
Atayee, R
AF Lin, Katrina
Ching, Andrea
Roeland, Eric
Ma, Joseph
Atayee, Rabia
TI Titrate to Death? Prescribing Patterns of Continuous Morphine Infusions
at End of Life
SO JOURNAL OF PAIN AND SYMPTOM MANAGEMENT
LA English
DT Meeting Abstract
CT Annual Assembly of the
American-Academy-of-Hospice-and-Palliative-Medicine and the
Hospice-and-Palliative-Nurses-Association
CY FEB 25-28, 2015
CL Philadelphia, PA
SP Amer Acad Hosp & Palliat Med, Hosp & Palliat Nurses Assoc
C1 [Lin, Katrina] US Naval Hosp, Dept Internal Med, San Diego, CA 92134 USA.
NR 0
TC 0
Z9 0
U1 1
U2 2
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 0885-3924
EI 1873-6513
J9 J PAIN SYMPTOM MANAG
JI J. Pain Symptom Manage.
PD FEB
PY 2015
VL 49
IS 2
MA S758
BP 437
EP 437
PG 1
WC Health Care Sciences & Services; Medicine, General & Internal; Clinical
Neurology
SC Health Care Sciences & Services; General & Internal Medicine;
Neurosciences & Neurology
GA AZ8PU
UT WOS:000348478200216
ER
PT J
AU Sundufu, A
Ansumana, R
Bockarie, AS
Bangura, U
Lamin, JM
Jacobsen, KH
Stenger, DA
AF Sundufu, Abu James
Ansumana, Rashid
Bockarie, Alfred Swarray
Bangura, Umaru
Lamin, Joseph Morrison
Jacobsen, Kathryn H.
Stenger, David Andrew
TI Syndromic surveillance of peste des petits ruminants and other animal
diseases in Koinadugu district, Sierra Leone, 2011-2012
SO TROPICAL ANIMAL HEALTH AND PRODUCTION
LA English
DT Article
DE Peste des petits ruminants; Goats; Trypanosomiasis; Cattle; Syndromic
surveillance
ID WEST-AFRICA; VIRUS; CATTLE
AB Purpose The purpose of this study was to conduct syndromic surveillance for important veterinary diseases in Koinadugu district, Northern Province, Sierra Leone.
Methods This study examined all veterinary syndromic surveillance reports submitted to the district veterinary office from January 2011 through December 2012.
Results In total, 5679 case reports were submitted, including 2394 fatalities. The most common syndrome reported was consistent with peste de petits ruminants (PPR) in goats (n=1649). PPR cases were reported from eight of 11 chiefdoms in the district, with a 42 per 1000 reported incidence rate and a 48 % case fatality rate. Other syndromes reported were consistent with trypanosomiasis in cattle (n=1402), Newcastle disease in poultry (n=911), black quarter in cattle (n=691), and haemorrhagic septicaemia in cattle (n=542).
Conclusions Expanded use of the PPR virus vaccine may be required to help control the spread of the infection. Improved community-based prevention efforts may be effective for better control of trypanosomiasis and all these conditions.
C1 [Sundufu, Abu James; Ansumana, Rashid; Bockarie, Alfred Swarray; Bangura, Umaru; Lamin, Joseph Morrison] Mercy Hosp Res Lab MHRL, Kulanda Town Bo, Sierra Leone.
[Ansumana, Rashid; Bockarie, Alfred Swarray] Njala Univ, Njala, Sierra Leone.
[Jacobsen, Kathryn H.] George Mason Univ, Dept Global & Community Hlth, Fairfax, VA 22030 USA.
[Stenger, David Andrew] US Naval Res Lab, Washington, DC USA.
RP Ansumana, R (reprint author), Mercy Hosp Res Lab MHRL, Kulanda Town Bo, Sierra Leone.
EM rashidansumana@gmail.com
RI Jacobsen, Kathryn/B-5857-2008
OI Jacobsen, Kathryn/0000-0002-4198-6246
NR 16
TC 0
Z9 0
U1 1
U2 15
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0049-4747
EI 1573-7438
J9 TROP ANIM HEALTH PRO
JI Trop. Anim. Health Prod.
PD FEB
PY 2015
VL 47
IS 2
BP 473
EP 477
DI 10.1007/s11250-014-0736-9
PG 5
WC Agriculture, Dairy & Animal Science; Veterinary Sciences
SC Agriculture; Veterinary Sciences
GA CA3FU
UT WOS:000348792800029
PM 25433648
ER
PT J
AU Rohlfs, C
Sullivan, R
Kniesner, T
AF Rohlfs, Chris
Sullivan, Ryan
Kniesner, Thomas
TI New Estimates of the Value of a Statistical Life Using Air Bag
Regulations as a Quasi-Experiment
SO AMERICAN ECONOMIC JOURNAL-ECONOMIC POLICY
LA English
DT Article
ID ROAD SAFETY; METAANALYSIS; MODELS
AB Due to federal regulations, automobile air bag availability was a model-specific discontinuous function of model year for used vehicles in the 1990s and early 2000s. We use the discontinuities and the gradual increase in the supply of air bags to trace out the demand curve for air bags and the implied distribution of the Value of a Statistical Life (VSL) across consumers. Although imprecise, our preferred point estimates indicate that the median VSL is between $9 million and $11 million and that a sizable portion of consumers placed negative values on air bags, probably due to distrust of the technology.
C1 [Rohlfs, Chris] Morgan Stanley, New York, NY 10019 USA.
[Sullivan, Ryan] Naval Postgrad Sch, Def Resources Management Inst, Monterey, CA 93943 USA.
[Kniesner, Thomas] Claremont Grad Univ, Dept Econ, Claremont, CA 91711 USA.
RP Rohlfs, C (reprint author), Morgan Stanley, 750 Seventh Ave,33rd Floor, New York, NY 10019 USA.
EM christopher.rohlfs@morganstanley.com; rssulliv@nps.edu;
tkniesne@maxwell.syr.edu
OI Rohlfs, Chris/0000-0001-7714-9231
FU National Institute of Aging (NIA) [1 R03 AG 031371-01A2]
FX This project was made possible through generous support from the
National Institute of Aging (NIA) grant number 1 R03 AG 031371-01A2. We
are grateful for expert research assistance from Min-Fang Rae Lan and
for helpful comments from Bill Dougan, Jeff Kubik, and anonymous NIA
referees. The views expressed in this document are those of the authors
and do not reflect the official policy or position of the Department of
Defense or the US government.
NR 49
TC 2
Z9 2
U1 0
U2 2
PU AMER ECONOMIC ASSOC
PI NASHVILLE
PA 2014 BROADWAY, STE 305, NASHVILLE, TN 37203 USA
SN 1945-7731
EI 1945-774X
J9 AM ECON J-ECON POLIC
JI Am. Econ. J.-Econ. Policy
PD FEB
PY 2015
VL 7
IS 1
BP 331
EP 359
DI 10.1257/pol.20110309
PG 29
WC Economics
SC Business & Economics
GA CA4XA
UT WOS:000348909500012
ER
PT J
AU Broderick, MP
Phillips, C
Faix, D
AF Broderick, Michael P.
Phillips, Christopher
Faix, Dennis
TI Meningococcal Disease in US Military Personnel before and after Adoption
of Conjugate Vaccine
SO EMERGING INFECTIOUS DISEASES
LA English
DT Letter
ID UNITED-STATES MILITARY; HUMAN IMMUNITY; POLYSACCHARIDES; IMMUNOGENICITY
C1 [Broderick, Michael P.; Phillips, Christopher; Faix, Dennis] Naval Hlth Res Ctr, San Diego, CA 92016 USA.
RP Broderick, MP (reprint author), Naval Hlth Res Ctr, 140 Sylvester Rd, San Diego, CA 92016 USA.
EM michael.broderick@med.navy.mil
NR 10
TC 2
Z9 2
U1 0
U2 3
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 FEB
PY 2015
VL 21
IS 2
BP 377
EP 379
DI 10.3201/eid2102.141037
PG 3
WC Immunology; Infectious Diseases
SC Immunology; Infectious Diseases
GA AZ8WC
UT WOS:000348491400037
PM 25625525
ER
PT J
AU Beck, TN
Lloyd, D
Kuskovsky, R
Minah, J
Arora, K
Plotkin, BJ
Green, JM
Boshoff, HI
Barry, C
Deschamps, J
Konaklieva, MI
AF Beck, Tim N.
Lloyd, Dina
Kuskovsky, Rostislav
Minah, Jeanette
Arora, Kriti
Plotkin, Balbina J.
Green, Jacalyn M.
Boshoff, Helena I.
Barry, Clifton, III
Deschamps, Jeffrey
Konaklieva, Monika I.
TI Non-transpeptidase binding arylthioether beta-lactams active against
Mycobacterium tuberculosis and Moraxella catarrhalis
SO BIOORGANIC & MEDICINAL CHEMISTRY
LA English
DT Article
DE Mycobacterium tuberculosis; Moraxella catarrhalis; beta-Lactams;
Antimicrobial resistance
ID STAPHYLOCOCCUS-AUREUS; ANTIBIOTIC-RESISTANCE; IDENTIFICATION; ENZYMES;
PROBES; AGENTS; MRSA
AB The prevalence of drug resistance in both clinical and community settings as a consequence of alterations of biosynthetic pathways, enzymes or cell wall architecture is a persistent threat to human health. We have designed, synthesized, and tested a novel class of non-transpeptidase, beta-lactamase resistant monocyclic beta-lactams that carry an arylthio group at C4. These thioethers exhibit inhibitory and cidal activity against serine beta-lactamase producing Mycobacterium tuberculosis wild type strain (Mtb) and multiple (n = 8) beta-lactamase producing Moraxella catarrhalis clinical isolates. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Beck, Tim N.; Lloyd, Dina; Kuskovsky, Rostislav; Minah, Jeanette; Konaklieva, Monika I.] Amer Univ, Dept Chem, Washington, DC 20016 USA.
[Plotkin, Balbina J.; Green, Jacalyn M.] Midwestern Univ, Dept Microbiol & Immunol, Chicago, IL 60515 USA.
[Arora, Kriti; Boshoff, Helena I.; Barry, Clifton, III] NIAID, TB Res Sect, LCID, NIH, Bethesda, MD 20892 USA.
[Deschamps, Jeffrey] Naval Res Lab, Washington, DC 20375 USA.
RP Konaklieva, MI (reprint author), Amer Univ, Dept Chem, Washington, DC 20016 USA.
EM mkonak@american.edu
RI Barry, III, Clifton/H-3839-2012
FU American University Research Grant; Department of Chemistry at American
University, Washington, D.C.; Midwestern University, Downers Grove, IL;
Intramural Research Program of the NIH, NIAID
FX This work was funded in part, by the American University Research Grant
and the Department of Chemistry at American University, Washington, D.C.
and by Midwestern University, Downers Grove, IL. This research was
supported in part by the Intramural Research Program of the NIH, NIAID.
NR 31
TC 1
Z9 1
U1 0
U2 7
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0968-0896
EI 1464-3391
J9 BIOORGAN MED CHEM
JI Bioorg. Med. Chem.
PD FEB 1
PY 2015
VL 23
IS 3
BP 632
EP 647
DI 10.1016/j.bmc.2014.11.025
PG 16
WC Biochemistry & Molecular Biology; Chemistry, Medicinal; Chemistry,
Organic
SC Biochemistry & Molecular Biology; Pharmacology & Pharmacy; Chemistry
GA AZ2BO
UT WOS:000348039700026
PM 25549898
ER
PT J
AU Briggs, KB
Cartwright, G
Friedrichs, CT
Shivarudruppa, S
AF Briggs, Kevin B.
Cartwright, Grace
Friedrichs, Carl T.
Shivarudruppa, S.
TI Biogenic effects on cohesive sediment erodibility resulting from
recurring seasonal hypoxia on the Louisiana shelf
SO CONTINENTAL SHELF RESEARCH
LA English
DT Article
DE Erodibility; Seasonal hypoxia; Macrobenthos; Bioturbation; Gulf of
Mexico; Louisiana
ID GULF-OF-MEXICO; FECAL PELLET PRODUCTION; SAND-MUD MIXTURES;
CONTINENTAL-SHELF; BURROWING INVERTEBRATES; INTERTIDAL SEDIMENTS;
BENTHIC MACROFAUNA; MARINE BENTHOS; BIOTURBATION; EROSION
AB Sediment erodibility was measured during summer 2010 at four sites off the Louisiana coast that experienced differing exposures to seasonal hypoxia. Stations were sampled along the 30-m isobath, and the sediments at all four sites were cohesive in nature. The largest difference in erodibility occurred between the site that had experienced hypoxia greater than 75% of the time and the site that had experienced hypoxia less than 25% of the time. Erodibility was higher at the sites with a history of seasonal hypoxia and lowest at the normoxic (< 25%) site. Laboratory measurements of lower sediment shear strength from cores were consistent with on-site measurements of higher erodibility from the sites that experienced seasonal hypoxia. The macrobenthos collected at the sites reflected the effects of hypoxia, with a more diverse assemblage occupying the normoxic site and less diverse assemblages occupying the sites exposed to hypoxia at greater frequencies. Although macrobenthic community analysis indicated that the assemblages at the four sites were similar, significant differences in the species abundance, feeding types, and bioturbation modes of the fauna were documented. Of particular importance to sediment erodibility may be the ratio of the concentrations of fauna known to be responsible for sediment dilation to the fauna known to be responsible for sediment compaction. Highly erodible and low shear strength sediments had a dilator/compactor ratio of 23 dilators to every one compactor; the less erodible and higher shear strength sediments had dilator/compactor ratios of 2.0-5.0. Ratios of dilators to compactors appeared to be consistent in macrofaunal censuses conducted previously at the same sites. Published by Elsevier Ltd.
C1 [Briggs, Kevin B.] Naval Res Lab, Seafloor Sci Branch, Stennis Space Ctr, MS 39529 USA.
[Cartwright, Grace; Friedrichs, Carl T.] Coll William & Mary, Virginia Inst Marine Sci, Gloucester Point, VA 23062 USA.
[Shivarudruppa, S.] Univ So Mississippi, Dept Marine Sci, Stennis Space Ctr, MS 39529 USA.
RP Briggs, KB (reprint author), Naval Res Lab, Seafloor Sci Branch, Stennis Space Ctr, MS 39529 USA.
EM kevin.briggs@nrlssc.navy.mil
FU Office of Naval Research; National Science Foundation [OCE-1061781]
FX We would like to thank M. Richardson, J. Watkins, J. Dale, M. Spearman,
V. Hartmann, K. Fall, W. Gardner, M. Fisher, Z. Liu, L. Xiao, T.
Richards, and D. McClain for their assistance with the fieldwork on the
cruise. D. Menke, C. Rakocinski, R. Heard, S. Le-Croy, G. Gaston, J.
McLelland, and J. Blake provided invaluable taxonomic assistance and A.
Tootle and A. Eubanks assisted with the laboratory work. Our special
thanks go to Nancy Rabalais for providing the bottom O2 data
and especially to the captain and crew of the R/V Pelican for their
assistance and professionalism. The Office of Naval Research provided
support for this research. National Science Foundation Grant OCE-1061781
supported data analysis by VIMS personnel.
NR 73
TC 3
Z9 3
U1 3
U2 10
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 FEB 1
PY 2015
VL 93
BP 17
EP 26
DI 10.1016/j.csr.2014.11.005
PG 10
WC Oceanography
SC Oceanography
GA CA1QL
UT WOS:000348686700002
ER
PT J
AU Segala, DB
Chelidze, D
AF Segala, David B.
Chelidze, David
TI Robust and Dynamically Consistent Model Order Reduction for Nonlinear
Dynamic Systems
SO JOURNAL OF DYNAMIC SYSTEMS MEASUREMENT AND CONTROL-TRANSACTIONS OF THE
ASME
LA English
DT Article
ID PROPER ORTHOGONAL DECOMPOSITION; VIBRATION; IDENTIFICATION; DIMENSION;
DAMAGE
AB There is a great importance for faithful reduced order models (ROMs) that are valid over a range of system parameters and initial conditions. In this paper, we demonstrate through two nonlinear dynamic models (pinned-pinned beam and thin plate) that are both randomly and periodically forced that smooth orthogonal decomposition (SOD)based ROMs are valid over a wide operating range of system parameters and initial conditions when compared to proper orthogonal decomposition (POD)-based ROMs. Two new concepts of subspace robustness-the ROM is valid over a range of initial conditions, forcing functions, and system parameters-and dynamical consistency-the ROM embeds the nonlinear manifold-are used to show that SOD, as opposed to POD, can capture the low order dynamics of a particular system even if the system parameters or initial conditions are perturbed from the design case.
C1 [Segala, David B.] Naval Undersea Warfare Ctr, Newport, RI 02841 USA.
[Chelidze, David] Univ Rhode Isl, Dept Mech Engn, Kingston, RI 02881 USA.
RP Segala, DB (reprint author), Naval Undersea Warfare Ctr, 1176 Howell St, Newport, RI 02841 USA.
EM david.segala@navy.mil; chelidze@egr.uri.edu
RI Chelidze, David/K-2417-2015
OI Chelidze, David/0000-0003-0655-1439
FU National Science Foundation [1100031]
FX David Segala would like to thank the Naval Undersea Warfare Center
Division Newport Internal Investments and David Chelidze would like to
thank the National Science Foundation under Grant No. 1100031.
NR 24
TC 1
Z9 1
U1 1
U2 8
PU ASME
PI NEW YORK
PA TWO PARK AVE, NEW YORK, NY 10016-5990 USA
SN 0022-0434
EI 1528-9028
J9 J DYN SYST-T ASME
JI J. Dyn. Syst. Meas. Control-Trans. ASME
PD FEB
PY 2015
VL 137
IS 2
AR 021011
DI 10.1115/1.4028470
PG 8
WC Automation & Control Systems; Instruments & Instrumentation
SC Automation & Control Systems; Instruments & Instrumentation
GA AZ2FR
UT WOS:000348050500011
ER
PT J
AU Stevens, MH
Evans, JS
Lumpe, J
Westlake, JH
Ajello, JM
Bradley, ET
Esposito, LW
AF Stevens, Michael H.
Evans, J. Scott
Lumpe, Jerry
Westlake, Joseph H.
Ajello, Joseph M.
Bradley, E. Todd
Esposito, Larry W.
TI Molecular nitrogen and methane density retrievals from Cassini UVIS
dayglow observations of Titan's upper atmosphere
SO ICARUS
LA English
DT Article
DE Titan, atmosphere; Atmospheres, composition; Aeronomy; Spectroscopy
ID SOLAR EUV; ELECTRON-IMPACT; STELLAR OCCULTATIONS; THERMAL STRUCTURE;
CROSS-SECTIONS; ERROR ANALYSIS; MODEL; THERMOSPHERE; PHOTOELECTRON;
IRRADIANCE
AB We retrieve number densities of molecular nitrogen (N-2) and methane (CH4) from Titan's upper atmosphere using the UV dayglow. We use Cassini Ultraviolet Imaging Spectrograph (UVIS) limb observations from 800 to 1300 km of the N I 1493 A and N II 1085 angstrom multiplets, both produced directly from photo-fragmentation of N-2. UVIS N-2 and CH4 densities are in agreement with measurements from Cassini's Ion Neutral Mass Spectrometer (INMS) from the same flyby if INMS densities are scaled up by a factor of 3.0 as reported in previous studies. Analysis of three Cassini flybys of Titan shows that (1) the CH4 homopause on Titan is between 900 and 1100 km, (2) upper atmospheric temperatures vary by less than 10 K over 6 h at the same geographic location and (3) from 1100 to 1700 local solar time temperatures also vary by less than 10 K. The capability of retrieving the global-scale composition from these data complements existing techniques and significantly advances the study of upper atmospheric variability at Titan and for any other atmosphere with a detectable UV dayglow. Published by Elsevier Inc.
C1 [Stevens, Michael H.] Naval Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Evans, J. Scott] Computat Phys Inc, Springfield, VA 22151 USA.
[Lumpe, Jerry] Computat Phys Inc, Boulder, CO 80301 USA.
[Westlake, Joseph H.] Johns Hopkins Univ, Appl Phys Lab, Laurel, MD 20723 USA.
[Ajello, Joseph M.] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA.
[Bradley, E. Todd] Univ Cent Florida, Dept Phys, Orlando, FL 32816 USA.
[Esposito, Larry W.] Atmospher & Space Phys Lab, Boulder, CO 80303 USA.
RP Stevens, MH (reprint author), Naval Res Lab, Div Space Sci, 4555 Overlook Ave SW, Washington, DC 20375 USA.
RI Westlake, Joseph/G-2732-2015
OI Westlake, Joseph/0000-0003-0472-8640
FU NASA [NNH13AV62I]
FX MHS, JSE and JMA gratefully acknowledge the NASA Cassini Data Analysis
Program for supporting this work (#NNH13AV62I). We thank A. Jouchoux, R.
West and the UVIS Operations Team for their help in arranging the
observations presented herein and R. Meier for assistance with the solar
irradiance calculations for this work and for many useful discussions.
We also thank T. Koskinen and F.J. Capalbo for providing the occultation
data shown in this work.
NR 53
TC 5
Z9 5
U1 1
U2 9
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0019-1035
EI 1090-2643
J9 ICARUS
JI Icarus
PD FEB
PY 2015
VL 247
BP 301
EP 312
DI 10.1016/j.icarus.2014.10.008
PG 12
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA AX1ER
UT WOS:000346691400021
ER
PT J
AU Burgos, S
Ear, S
AF Burgos, S.
Ear, S.
TI Emerging Infectious Diseases and Public Health Policy: Insights from
Cambodia, Hong Kong and Indonesia
SO TRANSBOUNDARY AND EMERGING DISEASES
LA English
DT Article
DE Cambodia; Hong Kong; Indonesia; diseases; public health
ID EMERGENCE
AB Emerging infectious diseases affect the health of animal and human populations, but the impact goes beyond health as it extends to political, economic, social and environmental domains, as well as inter-state relations. Deeper understanding of these impacts aids public health authorities in their duties of protection and improvement of the health of their communities, promotion of healthy practices and research on disease, injury and threat prevention and mitigation. This empirical essay gathers insights from Cambodia, Hong Kong and Indonesia as they attempt to design and implement control and surveillance systems against avian influenza - an infectious disease.
C1 [Burgos, S.] Univ S Alabama, Coll Med, Mobile, AL 36608 USA.
[Ear, S.] US Naval Postgrad Sch, Monterey, CA USA.
RP Burgos, S (reprint author), Univ S Alabama, Coll Med, 775 N Univ Blvd 250, Mobile, AL 36608 USA.
EM sigfridoburgos@southalabama.edu
NR 17
TC 1
Z9 1
U1 4
U2 16
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 1865-1674
EI 1865-1682
J9 TRANSBOUND EMERG DIS
JI Transbound. Emerg. Dis.
PD FEB
PY 2015
VL 62
IS 1
BP 96
EP 101
DI 10.1111/tbed.12084
PG 6
WC Infectious Diseases; Veterinary Sciences
SC Infectious Diseases; Veterinary Sciences
GA AY1CW
UT WOS:000347332000013
PM 23551938
ER
PT J
AU Hanbicki, AT
Currie, M
Kioseoglou, G
Friedman, AL
Jonker, BT
AF Hanbicki, A. T.
Currie, M.
Kioseoglou, G.
Friedman, A. L.
Jonker, B. T.
TI Measurement of high exciton binding energy in the monolayer
transition-metal dichalcogenides WS2 and WSe2
SO SOLID STATE COMMUNICATIONS
LA English
DT Article
DE 2D monolayers; Transition-metal dichalcogenides; Exciton binding energy
ID LAYER MOS2 TRANSISTORS; MOLYBDENUM-DISULFIDE; PHOTOLUMINESCENCE; ATOM
AB Monolayer transition metal dichalcogenides are direct gap semiconductors with great promise for optoelectronic devices. Although spatial correlation of electrons and holes plays a key role, there is little experimental information on such fundamental properties as exciton binding energies and band gaps. We report here an experimental determination of exciton excited states and binding energies for monolayer WS2 and WSe2. We observe peaks in the optical reflectivity/absorption spectra Corresponding to the ground- and excited-state excitons (1s and 2s states). From these features, we determine lower bounds free of any model assumptions for the exciton binding energies as E-2s(A) - E-1s(A) of 0.83 eV and 0.79 eV for WS2 and WSe2, respectively, and for the corresponding band gaps E-g >= E-2s(A) 012.90 and 2.53 eV at 4 K. Because the binding energies are large, the true band gap is substantially higher than the dominant spectral feature commonly observed with photoluminescence. This information is critical for emerging applications, and provides new insight into these novel monolayer semiconductors. Published by Elsevier Ltd.
C1 [Hanbicki, A. T.; Currie, M.; Friedman, A. L.; Jonker, B. T.] US Navy, Res Lab, Washington, DC 20375 USA.
[Kioseoglou, G.] Univ Crete, Dept Mat Sci & Technol, Iraklion 71003, Greece.
RP Jonker, BT (reprint author), US Navy, Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM Jonker@nrl.navy.mil
RI Friedman, Adam/D-9610-2011
OI Friedman, Adam/0000-0003-0597-5432
FU NRL; NRL Nanoscience Institute
FX We thank Jim Culbertson for assistance with Raman measurements. GK
gratefully acknowledges the hospitality and support of the Naval
Research Laboratory where the experiments were performed. This work was
supported by core programs at NRL and the NRL Nanoscience Institute.
NR 37
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Z9 50
U1 11
U2 144
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0038-1098
EI 1879-2766
J9 SOLID STATE COMMUN
JI Solid State Commun.
PD FEB
PY 2015
VL 203
BP 16
EP 20
DI 10.1016/j.ssc.2014.11.005
PG 5
WC Physics, Condensed Matter
SC Physics
GA AX6MD
UT WOS:000347035400004
ER
PT J
AU Lepping, RP
Wu, CC
Berdichevsky, DB
AF Lepping, R. P.
Wu, C. -C.
Berdichevsky, D. B.
TI Yearly Comparison of Magnetic Cloud Parameters, Sunspot Number, and
Interplanetary Quantities for the First 18 Years of the Wind Mission
SO SOLAR PHYSICS
LA English
DT Article
DE Magnetic Cloud; Sun spot number; Solar wind; Coronal Mass Ejection;
Interplanetary magnetic field; MC fitting model
ID CORONAL MASS EJECTIONS; SOLAR-WIND; GEOMAGNETIC STORMS; INTERACTION
REGION; INNER HELIOSPHERE; FLUX ROPES; AU; VOYAGER; FIELDS; ERRORS
AB In the scalar part of this study, we determine various statistical relationships between estimated magnetic cloud (MC) model fit-parameters and sunspot number (SSN) for the interval defined by the Wind mission, i.e., early 1995 until the end of 2012, all in terms of yearly averages. The MC-fitting model used is that of Lepping, Jones, and Burlaga (J. Geophys. Res. 95, 11957 -aEuro parts per thousand 11965, 1990). We also statistically compare the MC fit-parameters and other derived MC quantities [e.g., axial magnetic flux (I broken vertical bar(O)) and total axial current density (J (O))] with some associated ambient interplanetary quantities (including the interplanetary magnetic field (B (IMF)), proton number density (N (P)), and others). Some of the main findings are that the minimum SSN is nearly simultaneous with the minimum in the number of MCs per year (N (MC)), which occurs in 2008. There are various fluctuations in N (MC) and the MC model-fit quality (Q') throughout the mission, but the last four years (2009 -aEuro parts per thousand 2012) are markedly different from the others; Q' is low and N (MC) is large over these four years. N (MC) is especially large for 2012. The linear correlation coefficient (c.c.a parts per thousand 0.75) between the SSN and each of the three quantities J (O), MC diameter (2R (O)), and B (IMF), is moderately high, but none of the MC parameters track the SSN well in the sense defined in this article. However, there is good statistical tracking among the following: MC axial field, B (IMF), 2R (O), average MC speed (V (MC)), and yearly average solar wind speed (V (SW)) with relatively high c.c.s among most of these. From the start of the mission until late 2005, J (O) gradually increases, with a slight violation in 2003, but then a dramatic decrease (by more than a factor of five) occurs to an almost steady and low value of a parts per thousand aEuro parts per thousand 3 mu A km(-2) until the end of the interval of interest, i.e., lasting for at least seven years. This tends to split the overall 18-year interval into two phases with a separator at the end of 2005. There is good tracking between 2R (O) and the total axial current density, as expected. The MC duration is also correlated well with these two quantities. I broken vertical bar(O) shows marked variations throughout the mission, but has no obvious trend. N (P), B (IMF), V (MC), Q', and V (SW) are all quite steady over the full 18 years and have markedly low relative variation. Concerning vector quantities, we examine the distribution of MC type for the 18 years, where type refers to the field directional change through a given MC starting at first encounter (i.e., North-to-South, or South-to-North, All South, All North, etc.). Combining all 18 years of MC types shows that the occurrence rate varies strongly across the various MC types, with N-to-S being most prevalent, with a 27 % occurrence rate (of all MCs), and S-to-N being second, with a 23 % occurrence. Then All N and All S come next at 16 % and 10 % occurrence rate, respectively. All others are at 7 % or lower. For the variation of MC types with time, the southern types (i.e., those that start with a southern magnetic field, a negative B (Z) in geocentric-solar-ecliptic coordinates) decrease, as the northern types (i.e.
, those that start with a northern field) increase, apparently consistent with the specific timing of the polarity change of the solar magnetic field, as predicted by Bothmer and Rust (in Crooker, N., Joselyn, J., Feynman J. (eds), Geophys. Monogr., 139 -aEuro parts per thousand 146, 1997).
C1 [Lepping, R. P.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Wu, C. -C.] Naval Res Lab, Washington, DC 20375 USA.
[Berdichevsky, D. B.] Univ Dist Columbia, Dept Elect & Comp Engn, Washington, DC USA.
RP Wu, CC (reprint author), Naval Res Lab, Washington, DC 20375 USA.
EM Chin-Chun.Wu@nrl.navy.mil
FU NASA [NNG10PB25P]; ONR 6.1 program
FX We thank the Wind/MFI and SWE teams for the care they employ in
producing the plasma and field data used for this work, and in
particular, we thank Keith Ogilvie, the principal investigator of SWE,
and Adam Szabo (PI) and Franco Mariani (instrument calibrations), both
of the MFI team. We are grateful to the referee for comments that
significantly added to the proper interpretation of our analysis and for
finding a mistake. This work was supported by a NASA program under grant
number NNG10PB25P. CCW was partially supported by the ONR 6.1 program.
NR 42
TC 7
Z9 7
U1 0
U2 7
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 FEB
PY 2015
VL 290
IS 2
BP 553
EP 578
DI 10.1007/s11207-014-0622-7
PG 26
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA AX0LN
UT WOS:000346644000015
ER
PT J
AU Severson, TA
Paley, DA
AF Severson, Tracie A.
Paley, Derek A.
TI Distributed Multitarget Search and Track Assignment With Consensus-Based
Coordination
SO IEEE SENSORS JOURNAL
LA English
DT Article
DE Cooperative systems; graph theory; networks; optimization methods; radar
ID RESOURCE-MANAGEMENT; MULTIAGENT SYSTEMS; BALLISTIC TARGET; TOPOLOGIES
AB This paper presents a distributed, consensus-based approach to optimize radar resource management for ballistic missile surveillance and tracking. Radar search, target detection, and target tracking are described using a nonlinear, three-dimensional model. Target tracking includes an estimate of the resources required to reduce target uncertainty to support engagements. Each radar determines its preferred radar-to-target assignment using a probabilistic optimization algorithm that balances radar loading and minimizes the total radar usage. Under heightened track demand, radar search sectors degrade symmetrically about a designated threat axis. A unique global radar-to-target assignment that is robust to resource estimation error is generated by a distributed consensus algorithm. Performance of the coordinated algorithm is compared with uncoordinated alternatives via Monte Carlo simulations.
C1 [Severson, Tracie A.] US Naval Acad, Dept Weap & Syst Engn, Annapolis, MD 21402 USA.
[Paley, Derek A.] Univ Maryland, Syst Res Inst, Dept Aerosp Engn, College Pk, MD 20742 USA.
RP Severson, TA (reprint author), US Naval Acad, Dept Weap & Syst Engn, Annapolis, MD 21402 USA.
EM severson@usna.edu; dpaley@umd.edu
FU Office of Naval Research [N00174-09-2-00023]
FX This work was supported by the Office of Naval Research under Grant
N00174-09-2-00023.
NR 42
TC 2
Z9 3
U1 1
U2 20
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1530-437X
EI 1558-1748
J9 IEEE SENS J
JI IEEE Sens. J.
PD FEB
PY 2015
VL 15
IS 2
BP 864
EP 875
DI 10.1109/JSEN.2014.2355200
PG 12
WC Engineering, Electrical & Electronic; Instruments & Instrumentation;
Physics, Applied
SC Engineering; Instruments & Instrumentation; Physics
GA AU9IQ
UT WOS:000345905900011
ER
PT J
AU Chen, W
AF Chen, Wei
TI Current Motion Tracking from Satellite Image Sequence With Global
Similarity Optimization Model
SO IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
LA English
DT Article
DE Bias and gain independent; global similarity criterion (GSC); global
similarity optimization model (GSOM); illumination robustness;
normalized cross correlation (NCC); optical or heat flow computation;
radiometric variation
ID OPTICAL-FLOW ESTIMATION; VARYING ILLUMINATION; SURFACE VELOCITY;
REGISTRATION
AB A new approach is proposed for motion tracking from a satellite image sequence to address the issue of radiometric variations between two-frame images. A global similarity criterion is defined based on the cross correlation between two images to convert a convex optimization model to a nonconvex one. The retrieval of the motion field with the criterion of maximum similarity becomes solving a nonlinear minimization problem. One of the generic iterative equations is formulated based on the global similarity optimization model (GSOM) and a unified adaptive framework. The simplified iterative equation is easy to implement and highly efficient with lower computational complexity for motion estimation. The new GSOM method can adapt to the violations of the tracer conservation constraint for motion field estimation when there are radiometric variations between two images. The approach is tested using an ocean simulation data set and realistic satellite infrared image sequences. Experimental results indicate that the new approach is not only robust for radiometric variations between two images but also efficient, fast, and accurate for motion estimation.
C1 Naval Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
RP Chen, W (reprint author), Naval Res Lab, Remote Sensing Div, Code 7233, Washington, DC 20375 USA.
EM wei.chen@nrl.navy.mil
FU Office of Naval Research through Naval Research Laboratory [WU-72-4279]
FX This work was supported by the Office of Naval Research through Project
WU-72-4279 at the Naval Research Laboratory.
NR 27
TC 2
Z9 2
U1 1
U2 26
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0196-2892
EI 1558-0644
J9 IEEE T GEOSCI REMOTE
JI IEEE Trans. Geosci. Remote Sensing
PD FEB
PY 2015
VL 53
IS 2
BP 1008
EP 1015
DI 10.1109/TGRS.2014.2332044
PG 8
WC Geochemistry & Geophysics; Engineering, Electrical & Electronic; Remote
Sensing; Imaging Science & Photographic Technology
SC Geochemistry & Geophysics; Engineering; Remote Sensing; Imaging Science
& Photographic Technology
GA AQ6HG
UT WOS:000342910800034
ER
PT J
AU Bates, JW
AF Bates, J. W.
TI Theory of the corrugation instability of a piston-driven shock wave
SO PHYSICAL REVIEW E
LA English
DT Article
ID SPONTANEOUS ACOUSTIC-EMISSION; IONIZING MONATOMIC GASES; HYDROGEN
IMPURITIES; TRANSVERSE-WAVES; STABILITY; DETONATION; TRANSITION; PHASE;
PROPAGATION; PLASMA
AB We analyze the two-dimensional stability of a shock wave driven by a steadily moving corrugated piston in an inviscid fluid with an arbitrary equation of state. For h <= -1 or h > h(c), where h is the D'yakov parameter and hc is the Kontorovich limit, we find that small perturbations on the shock front are unstable and grow-at first quadratically and later linearly-with time. Such instabilities are associated with nonequilibrium fluid states and imply a nonunique solution to the hydrodynamic equations. The above criteria are consistent with instability limits observed in shock-tube experiments involving ionizing and dissociating gases and may have important implications for driven shocks in laser-fusion, astrophysical, and/or detonation studies.
C1 US Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
RP Bates, JW (reprint author), US Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
NR 58
TC 2
Z9 2
U1 1
U2 7
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 JAN 30
PY 2015
VL 91
IS 1
AR 013014
DI 10.1103/PhysRevE.91.013014
PG 6
WC Physics, Fluids & Plasmas; Physics, Mathematical
SC Physics
GA CD7KQ
UT WOS:000351269700012
PM 25679715
ER
PT J
AU Claussen, JC
Malanoski, A
Breger, JC
Oh, E
Walper, SA
Susumu, K
Goswami, R
Deschamps, JR
Medintz, IL
AF Claussen, Jonathan C.
Malanoski, Anthony
Breger, Joyce C.
Oh, Eunkeu
Walper, Scott A.
Susumu, Kimihiro
Goswami, Ramasis
Deschamps, Jeffrey R.
Medintz, Igor L.
TI Probing the Enzymatic Activity of Alkaline Phosphatase within Quantum
Dot Bioconjugates
SO JOURNAL OF PHYSICAL CHEMISTRY C
LA English
DT Article
ID RESONANCE ENERGY-TRANSFER; PROTEOLYTIC ACTIVITY; GLUCOSE-OXIDASE;
IMMOBILIZED ENZYMES; GOLD NANOPARTICLES; TRANSFER RELAY; CYTOCHROME-C;
PEPTIDE; PERFORMANCE; BIOSENSORS
AB Enzymes provide the critical means by which to catalyze almost all biological reactions in a controlled manner. Methods to harness and exploit their properties are of strong current interest to the growing field of biotechnology. In contrast to depending upon recombinant genetic approaches, a growing body of evidence suggests that apparent enzymatic activity can be enhanced when located at a nanoparticle interface. We use semiconductor quantum dots (QDs) as a well-defined and easily bioconjugated nanoparticle along with Escherichia coli-derived alkaline phosphatase (AP) as a prototypical enzyme to seek evidence for this process in a de novo model system. We began by first assessing whether the relatively large dimeric AP protein (similar to 100 kDa) can be assembled onto two differentially sized green and red CdSe/ZnS core/shell QDs in a ratiometric and structurally controlled manner; such assembly is necessary to minimize heterogeneity within the bioconjugate and provide intimate control over the experimental format. For this, analysis is undertaken using both structural modeling and physicochemical characterization techniques including dynamic light scattering and agarose gel electrophoresis; these all provide strong supporting evidence for controlled AP attachment to the QDs. The enzymatic activity of AP-QD bioconjugates assembled on the different QDs and displaying variable AP:QD ratios was then assayed against equivalent amounts of freely diffusing enzyme controls in both conventional excess substrate formats and a varying enzyme-fixed substrate format that is more amenable in general to concentration-limited nanoparticle conjugates. The resulting experimental data were then analyzed in the context of the Michaelis-Menten model and compared. The results show a general equivalency between the two assay formats while also providing evidence for an increase in apparent AP activity of ca. 25% when attached to the QDs. Some discussion is provided on the underlying mechanisms that may contribute to the enhanced activity along with the implications of this work toward future research.
C1 [Claussen, Jonathan C.; Malanoski, Anthony; Breger, Joyce C.; Walper, Scott A.; Deschamps, Jeffrey R.; Medintz, Igor L.] US Naval Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 USA.
[Oh, Eunkeu; Susumu, Kimihiro] US Naval Res Lab, Opt Sci Div, Washington, DC 20375 USA.
[Goswami, Ramasis] US Naval Res Lab, Nanosci Inst, Washington, DC 20375 USA.
[Claussen, Jonathan C.] George Mason Univ, Coll Sci, Fairfax, VA 22030 USA.
[Walper, Scott A.; Susumu, Kimihiro] Sotera Def Solut, Columbia, MD 21046 USA.
[Breger, Joyce C.] Amer Soc Engn Educ, Washington, DC 20036 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
OI Claussen, Jonathan/0000-0001-7065-1077
FU NRL NSI; ONR; DTRA JSTO MIPR [B112582M]
FX Financial support is gratefully acknowledged from the NRL NSI, ONR, and
DTRA JSTO MIPR B112582M.
NR 86
TC 22
Z9 22
U1 5
U2 78
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 JAN 29
PY 2015
VL 119
IS 4
BP 2208
EP 2221
DI 10.1021/jp5110467
PG 14
WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science,
Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA CA2QR
UT WOS:000348753000067
ER
PT J
AU Hecht, JH
Christensen, AB
Yee, JH
Crowley, G
Bishop, RL
Budzien, SA
Stephan, AW
Evans, JS
AF Hecht, James H.
Christensen, Andrew B.
Yee, Jeng-Hwa
Crowley, Geoff
Bishop, Rebeeca L.
Budzien, Scott A.
Stephan, Andrew W.
Evans, J. Scott
TI A new technique for remote sensing of O-2 density from 140 to 180 km
SO GEOPHYSICAL RESEARCH LETTERS
LA English
DT Article
DE technique; thermosphere; composition
ID ATMOSPHERE; DAYGLOW; MIDDLE; OXYGEN; MODEL
AB Observations of molecular oxygen are difficult to make in the Earth's atmosphere between 140 and 200 km altitude. Perhaps the most accurate measurements to date have been obtained from satellite instruments that measure solar occultations of the limb. These do provide height-resolved O-2 density measurements, but the nature of this technique is such that the temporal/spatial distribution of the measurements is uneven. Here a new space-based technique is described that utilizes two bright dayglow emissions, the (0,0) transition of the O-2 atmospheric band and the O I (630 nm), to derive the height-resolved O-2 density from 140 to 180 km. Data from the Remote Atmospheric and Ionospheric Detection System, which was placed on the International Space Station in late 2009, are used to illustrate this technique. The O-2 density results for periods in May 2010 that were geomagnetically quiet and disturbed are compared to model predictions.
C1 [Hecht, James H.; Christensen, Andrew B.; Bishop, Rebeeca L.] Aerosp Corp, Space Sci Applicat Lab, El Segundo, CA 90245 USA.
[Yee, Jeng-Hwa] Johns Hopkins Univ, Appl Phys Lab, Laurel, MD USA.
[Crowley, Geoff] ASTRA LLC, Boulder, CO USA.
[Budzien, Scott A.; Stephan, Andrew W.] Naval Res Lab, Space Sci Div, Washington, DC 20375 USA.
[Evans, J. Scott] Computat Phys Inc, Springfield, VA USA.
RP Hecht, JH (reprint author), Aerosp Corp, Space Sci Applicat Lab, El Segundo, CA 90245 USA.
EM james.hecht@aero.org
FU Office of Naval Research and The Aerospace Corporation's Independent
Research and Development program; NASA [NNX11AD71G]; Aerospace
Corporation's SERPA program
FX RAIDS was integrated and flown under the direction of the Department of
Defense Space Test Program. RAIDS was built jointly by the Naval
Research Laboratory and The Aerospace Corporation, with additional
support from the Office of Naval Research and The Aerospace
Corporation's Independent Research and Development program. Support for
this work is also provided at Aerospace by NASA grant NNX11AD71G and by
The Aerospace Corporation's SERPA program. The TIMEGCM modeling at ASTRA
was supported by a subcontract from NASA grant NNX11AD71G. The data in
this paper can be obtained by contacting the lead author.
NR 21
TC 0
Z9 0
U1 2
U2 3
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 0094-8276
EI 1944-8007
J9 GEOPHYS RES LETT
JI Geophys. Res. Lett.
PD JAN 28
PY 2015
VL 42
IS 2
BP 233
EP 240
DI 10.1002/2014GL062355
PG 8
WC Geosciences, Multidisciplinary
SC Geology
GA CB9MO
UT WOS:000349956000007
ER
PT J
AU Ortenzi, L
Gretarsson, H
Kasahara, S
Matsuda, Y
Shibauchi, T
Finkelstein, KD
Wu, W
Julian, SR
Kim, YJ
Mazin, II
Boeri, L
AF Ortenzi, L.
Gretarsson, H.
Kasahara, S.
Matsuda, Y.
Shibauchi, T.
Finkelstein, K. D.
Wu, W.
Julian, S. R.
Kim, Young-June
Mazin, I. I.
Boeri, L.
TI Structural Origin of the Anomalous Temperature Dependence of the Local
Magnetic Moments in the CaFe2As2 Family of Materials
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID IRON PNICTIDES; STATE; SPECTROSCOPY
AB We report a combination of Fe K beta x-ray emission spectroscopy and density functional reduced Stoner theory calculations to investigate the correlation between structural and magnetic degrees of freedom in CaFe2(As1-xPx)(2). The puzzling temperature behavior of the local moment found in rare earth-doped CaFe2As2 [H. Gretarsson et al., Phys. Rev. Lett. 110, 047003 (2013)] is also observed in CaFe2(As1-xPx)(2). We explain this phenomenon based on first-principles calculations with scaled magnetic interaction. One scaling parameter is sufficient to describe quantitatively the magnetic moments in both CaFe2(As1-xPx)(2) (x = 0.055) and Ca0.78La0.22Fe2As2 at all temperatures. The anomalous growth of the local moments with increasing temperature can be understood from the observed large thermal expansion of the c-axis lattice parameter combined with strong magnetoelastic coupling. These effects originate from the strong tendency to form As-As dimers across the Ca layer in the CaFe2As2 family of materials. Our results emphasize the dual local-itinerant character of magnetism in Fe pnictides.
C1 [Ortenzi, L.] Univ Roma La Sapienza, Dipartimento Fis, Inst Complex Syst ISC CNR, I-00185 Rome, Italy.
[Ortenzi, L.; Gretarsson, H.] Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany.
[Gretarsson, H.; Wu, W.; Julian, S. R.; Kim, Young-June] Univ Toronto, Dept Phys, Toronto, ON M5S 1A7, Canada.
[Kasahara, S.; Matsuda, Y.; Shibauchi, T.] Kyoto Univ, Dept Phys, Kyoto 6068502, Japan.
[Shibauchi, T.] Univ Tokyo, Dept Adv Mat Sci, Kashiwa, Chiba 2778561, Japan.
[Finkelstein, K. D.] Cornell Univ, Cornell High Energy Synchrotron Source, Ithaca, NY 14853 USA.
[Mazin, I. I.] Naval Res Lab, Washington, DC 20375 USA.
[Boeri, L.] Graz Univ Technol, Inst Theoret & Computat Phys, A-8010 Graz, Austria.
RP Ortenzi, L (reprint author), Univ Roma La Sapienza, Dipartimento Fis, Inst Complex Syst ISC CNR, Piazzale Aldo Moro 5, I-00185 Rome, Italy.
RI Kim, Young-June /G-7196-2011; Shibauchi, Takasada/B-9349-2008; Boeri,
Lilia/B-6162-2015; Kasahara, Shigeru/H-3064-2014
OI Kim, Young-June /0000-0002-1172-8895; Shibauchi,
Takasada/0000-0001-5831-4924; Boeri, Lilia/0000-0003-1186-2207;
Kasahara, Shigeru/0000-0002-6007-9617
FU ONR through the NRL basic research program; A. v. Humboldt foundation;
NSERC; CFI; OMRI; CIfAR; National Science Foundation; National
Institutes of Health/National Institute of General Medical Sciences
under NSF [DMR-0936384]; Deutsche Forschungsgemeinschaft [1458,
Boe/3536-1]
FX The authors acknowledge useful discussions with G. Khaliullin. I. I. M.
acknowledges support from ONR through the NRL basic research program and
from the A. v. Humboldt foundation. Research at the University of
Toronto was supported by the NSERC, CFI, OMRI, and CIfAR. The use of the
CHESS facility was supported by the National Science Foundation and the
National Institutes of Health/National Institute of General Medical
Sciences under NSF Grant No. DMR-0936384. L. O. acknowledges support
from the Deutsche Forschungsgemeinschaft under Priority Program 1458,
Grant No. Boe/3536-1.
NR 46
TC 7
Z9 7
U1 9
U2 52
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 JAN 28
PY 2015
VL 114
IS 4
AR 047001
DI 10.1103/PhysRevLett.114.047001
PG 6
WC Physics, Multidisciplinary
SC Physics
GA CB8IE
UT WOS:000349871400007
PM 25679903
ER
PT J
AU Qadri, SB
Gorzkowski, E
Rath, BB
Feng, J
Qadri, SN
Kim, H
Caldwell, JD
Imam, MA
AF Qadri, S. B.
Gorzkowski, E.
Rath, B. B.
Feng, J.
Qadri, S. N.
Kim, H.
Caldwell, J. D.
Imam, M. A.
TI Nanoparticles and nanorods of silicon carbide from the residues of corn
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID STACKING-FAULTS; SIC POLYTYPES; PIN DIODES; DEFECTS; LIGHT; TEMPERATURE;
NANOSCALE; NANOWIRES; PRESSURE; WHISKERS
AB We have investigated the thermally induced transformation of various residues of the corn plant into nanoparticles and nanorods of different silicon carbide (SiC) polytypes. This has been accomplished by both microwave-induced and conventional furnace pyrolysis in excess of 1450 degrees C in an inert atmosphere. This simple process of producing nanoparticles of different polytypes of SiC from the corn plant opens a new method of utilizing agricultural waste to produce viable industrial products that are technologically important for nanoelectronics, molecular sensors, nanophotonics, biotechnology, and other mechanical applications. Using x-ray and Raman scattering characterization, we have demonstrated that the processed samples of corn husk, leaves, stalks, and cob consist of SiC nanostructures of the 2H, 3C, 4H, and 6H polytypes. (C) 2015 AIP Publishing LLC.
C1 [Qadri, S. B.; Gorzkowski, E.; Rath, B. B.; Feng, J.; Qadri, S. N.; Kim, H.; Caldwell, J. D.] Naval Res Lab, Mat Sci & Component Technol Directorate, Washington, DC 20375 USA.
[Imam, M. A.] George Washington Univ, Dept Mech & Aerosp Engn, Washington, DC 20052 USA.
RP Qadri, SB (reprint author), Naval Res Lab, Mat Sci & Component Technol Directorate, Washington, DC 20375 USA.
EM syed.qadri@nrl.navy.mil
RI Caldwell, Joshua/B-3253-2008
OI Caldwell, Joshua/0000-0003-0374-2168
NR 49
TC 4
Z9 4
U1 1
U2 29
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 JAN 28
PY 2015
VL 117
IS 4
AR UNSP 044306
DI 10.1063/1.4906974
PG 6
WC Physics, Applied
SC Physics
GA CA6DF
UT WOS:000348998200033
ER
PT J
AU van Horn, M
Smith, P
Mason, BP
Hemmer, JR
de Alaniz, JR
Hooper, JP
Osswald, S
AF van Horn, M.
Smith, P.
Mason, B. P.
Hemmer, J. R.
de Alaniz, J. Read
Hooper, J. P.
Osswald, S.
TI Optical characterization and confocal fluorescence imaging of
mechanochromic acrylate polymers
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID POLYMERIZATION; SPIROPYRAN; ACTIVATION
AB The development of mechanochromic molecules has opened new pathways for the study of localized stress and failure in polymers. Their application as stress or temperature diagnostics, however, requires suitable measurement techniques capable of detecting the force-and temperature-sensitive chemical species with high spatial resolution. Confocal imaging techniques offer excellent spatial resolution but the energy input during these measurements can itself affect the activation state of the mechanochromic species. Here, we present a systematic study of the effects of laser-based imaging on the activation and fluorescence behavior of mechanochromic spiropyran (SP) integrated into poly( methyl acrylate) (PMA) and poly(methyl methacrylate) matrices using a confocal Raman microspectrometer. Localized stress and temperature activation were studied by means of high-rate compressive loading and dynamic fracture. Laser illumination of SP in PMA revealed a strong excitation wavelength-and power-dependence. Suitable correction functions were established and used to account for the observed laser effects. The presented study demonstrates that confocal imaging using conventional Raman spectrometers is a powerful characterization tool for localized stress analysis in mechanochromic polymers, offering quantifiable information on the activation state with high spatial resolution. However, laser-mechanophore interactions must be well understood and effects of laser excitation and exposure times must be taken into consideration when interpreting the obtained results. (C) 2015 AIP Publishing LLC.
C1 [van Horn, M.; Smith, P.; Hooper, J. P.; Osswald, S.] Naval Postgrad Sch, Dept Phys, Monterey, CA 93943 USA.
[Mason, B. P.] Naval Surface Warfare Ctr, Res Dept, Indian Head Div, Indian Head, MD 20640 USA.
[Hemmer, J. R.; de Alaniz, J. Read] Univ Calif Santa Barbara, Dept Chem & Biochem, Santa Barbara, CA 93106 USA.
RP Osswald, S (reprint author), Purdue Univ, Sch Mat Engn, 701 West Stadium Ave, W Lafayette, IN 47907 USA.
EM sosswald@purdue.edu
OI Read de Alaniz, Javier/0000-0003-2770-9477
FU Defense Threat Reduction Agency [HDTRA139181]
FX This work was funded by the Defense Threat Reduction Agency Basic
Sciences program under Grant No. HDTRA139181 and managed by Su Peiris.
NR 16
TC 2
Z9 2
U1 6
U2 35
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 JAN 28
PY 2015
VL 117
IS 4
AR 043103
DI 10.1063/1.4906326
PG 7
WC Physics, Applied
SC Physics
GA CA6DF
UT WOS:000348998200003
ER
PT J
AU Peck, M
Caturegli, I
Schlessman, JL
Robinson, A
Garcia-Moreno, BE
AF Peck, Meredith
Caturegli, Ilaria
Schlessman, Jamie L.
Robinson, Aaron
Garcia-Moreno, Bertrand E.
TI Determinants of Domain Swapping in Staphylococcal Nuclease
SO BIOPHYSICAL JOURNAL
LA English
DT Meeting Abstract
C1 [Peck, Meredith; Caturegli, Ilaria; Garcia-Moreno, Bertrand E.] Johns Hopkins, Biophys, Baltimore, MD USA.
[Schlessman, Jamie L.] US Naval Acad, Chem, Annapolis, MD 21402 USA.
NR 0
TC 0
Z9 0
U1 2
U2 2
PU CELL PRESS
PI CAMBRIDGE
PA 600 TECHNOLOGY SQUARE, 5TH FLOOR, CAMBRIDGE, MA 02139 USA
SN 0006-3495
EI 1542-0086
J9 BIOPHYS J
JI Biophys. J.
PD JAN 27
PY 2015
VL 108
IS 2
SU 1
MA 234-Pos
BP 47A
EP 47A
PG 1
WC Biophysics
SC Biophysics
GA CO9DB
UT WOS:000359471700235
ER
PT J
AU Caro, JA
Dellarole, M
Fossat, M
Schlessman, JL
Roumestand, C
Royer, CA
Garcia-Moreno, BE
AF Caro, Jose A.
Dellarole, Mariano
Fossat, Martin
Schlessman, Jamie L.
Roumestand, Christian
Royer, Catherine A.
Garcia-Moreno, Bertrand E.
TI Internal Cavities and their Role as Determinants of Pressure Unfolding
of Proteins
SO BIOPHYSICAL JOURNAL
LA English
DT Meeting Abstract
C1 [Caro, Jose A.; Garcia-Moreno, Bertrand E.] Johns Hopkins Univ, Baltimore, MD USA.
[Dellarole, Mariano; Fossat, Martin; Roumestand, Christian] CNRS, Ctr Biochim Struct, Montpellier, France.
[Schlessman, Jamie L.] US Naval Acad, Chem, Annapolis, MD 21402 USA.
[Royer, Catherine A.] Rensselaer Polytech Inst, Biol Sci, Troy, NY USA.
RI Royer, Catherine/E-5266-2016
OI Royer, Catherine/0000-0002-2670-3391
NR 0
TC 0
Z9 0
U1 3
U2 4
PU CELL PRESS
PI CAMBRIDGE
PA 600 TECHNOLOGY SQUARE, 5TH FLOOR, CAMBRIDGE, MA 02139 USA
SN 0006-3495
EI 1542-0086
J9 BIOPHYS J
JI Biophys. J.
PD JAN 27
PY 2015
VL 108
IS 2
SU 1
MA 240-Pos
BP 48A
EP 49A
PG 2
WC Biophysics
SC Biophysics
GA CO9DB
UT WOS:000359471700241
ER
PT J
AU Kim, Y
Mittal, J
AF Kim, Youngchan
Mittal, Jeetain
TI Thermodynamics and Kinetics of Multi-Protein Binding in Crowded
Environments
SO BIOPHYSICAL JOURNAL
LA English
DT Meeting Abstract
C1 [Kim, Youngchan] Naval Res Lab, Ctr Computat Mat Sci, Washington, DC 20375 USA.
[Mittal, Jeetain] Lehigh Univ, Dept Chem & Biomol Engn, Bethlehem, PA 18015 USA.
NR 0
TC 0
Z9 0
U1 1
U2 1
PU CELL PRESS
PI CAMBRIDGE
PA 600 TECHNOLOGY SQUARE, 5TH FLOOR, CAMBRIDGE, MA 02139 USA
SN 0006-3495
EI 1542-0086
J9 BIOPHYS J
JI Biophys. J.
PD JAN 27
PY 2015
VL 108
IS 2
SU 1
MA 573-Pos
BP 114A
EP 115A
PG 2
WC Biophysics
SC Biophysics
GA CO9DB
UT WOS:000359471700574
ER
PT J
AU Bell-Upp, P
Sorenson, J
Schlessman, JL
Garcia-Moreno, BE
AF Bell-Upp, Peregrine
Sorenson, Jaime
Schlessman, Jamie L.
Garcia-Moreno, Bertrand E.
TI Engineering of Artificial pH Switch Proteins using Internal Ionizable
Residues with Anomalous PKA Values
SO BIOPHYSICAL JOURNAL
LA English
DT Meeting Abstract
CT 59th Annual Meeting of the Biophysical-Society
CY FEB 07-11, 2015
CL Baltimore, MD
SP Biophys Soc
C1 [Bell-Upp, Peregrine; Sorenson, Jaime; Garcia-Moreno, Bertrand E.] Johns Hopkins Univ, Biophys, Baltimore, MD USA.
[Schlessman, Jamie L.] US Naval Acad, Chem, Annapolis, MD 21402 USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU CELL PRESS
PI CAMBRIDGE
PA 600 TECHNOLOGY SQUARE, 5TH FLOOR, CAMBRIDGE, MA 02139 USA
SN 0006-3495
EI 1542-0086
J9 BIOPHYS J
JI Biophys. J.
PD JAN 27
PY 2015
VL 108
IS 2
SU 1
MA 1651-Pos
BP 329A
EP 329A
PG 1
WC Biophysics
SC Biophysics
GA CT5KU
UT WOS:000362849400066
ER
PT J
AU Rice, SL
Preimesberger, MR
Schlessman, JL
Boucher, LE
Bosch, J
Lecomte, JTJ
AF Rice, Selena L.
Preimesberger, Matt R.
Schlessman, Jamie L.
Boucher, Lauren E.
Bosch, Jurgen
Lecomte, Juliette T. J.
TI The Unusual Heme Coordination of THB1, a Hemoglobin from Chlamydomonas
Reinhardtii
SO BIOPHYSICAL JOURNAL
LA English
DT Meeting Abstract
CT 59th Annual Meeting of the Biophysical-Society
CY FEB 07-11, 2015
CL Baltimore, MD
SP Biophys Soc
C1 [Rice, Selena L.; Preimesberger, Matt R.; Lecomte, Juliette T. J.] Johns Hopkins Univ, Baltimore, MD USA.
[Schlessman, Jamie L.] US Naval Acad, Annapolis, MD USA.
[Boucher, Lauren E.; Bosch, Jurgen] Johns Hopkins Univ, Bloomberg Sch Publ Hlth, Baltimore, MD USA.
NR 1
TC 0
Z9 0
U1 1
U2 1
PU CELL PRESS
PI CAMBRIDGE
PA 600 TECHNOLOGY SQUARE, 5TH FLOOR, CAMBRIDGE, MA 02139 USA
SN 0006-3495
EI 1542-0086
J9 BIOPHYS J
JI Biophys. J.
PD JAN 27
PY 2015
VL 108
IS 2
SU 1
MA 2578-Pos
BP 511A
EP 511A
PG 1
WC Biophysics
SC Biophysics
GA CT5KV
UT WOS:000362849600186
ER
PT J
AU Robinson, A
Theodoru, A
Schlessman, J
Garcia-Moreno, BE
AF Robinson, Aaron
Theodoru, Andrea
Schlessman, Jamie
Garcia-Moreno, Bertrand E.
TI Interactions between Pairs of Charges Buried in the Hydrophobic Interior
of a Protein are Unexpectedly Weak
SO BIOPHYSICAL JOURNAL
LA English
DT Meeting Abstract
CT 59th Annual Meeting of the Biophysical-Society
CY FEB 07-11, 2015
CL Baltimore, MD
SP Biophys Soc
C1 [Robinson, Aaron; Theodoru, Andrea; Garcia-Moreno, Bertrand E.] Johns Hopkins Univ, Biophys, Baltimore, MD USA.
[Schlessman, Jamie] US Naval Acad, Chem, Annapolis, MD 21402 USA.
NR 0
TC 0
Z9 0
U1 1
U2 2
PU CELL PRESS
PI CAMBRIDGE
PA 600 TECHNOLOGY SQUARE, 5TH FLOOR, CAMBRIDGE, MA 02139 USA
SN 0006-3495
EI 1542-0086
J9 BIOPHYS J
JI Biophys. J.
PD JAN 27
PY 2015
VL 108
IS 2
SU 1
MA 2611-Pos
BP 517A
EP 517A
PG 1
WC Biophysics
SC Biophysics
GA CT5KV
UT WOS:000362849600219
ER
PT J
AU Yates, EA
Legleiter, J
AF Yates, Elizabeth A.
Legleiter, Justin
TI Preparation Protocols of Beta-Amyloid (1-40) Promote the Formation of
Polymorphic Aggregates and Altered Interactions with Lipid Bilayers
SO BIOPHYSICAL JOURNAL
LA English
DT Meeting Abstract
CT 59th Annual Meeting of the Biophysical-Society
CY FEB 07-11, 2015
CL Baltimore, MD
SP Biophys Soc
C1 [Yates, Elizabeth A.] US Naval Acad, Chem, Annapolis, MD 21402 USA.
[Yates, Elizabeth A.; Legleiter, Justin] W Virginia Univ, Chem, Morgantown, WV 26506 USA.
NR 0
TC 0
Z9 0
U1 2
U2 2
PU CELL PRESS
PI CAMBRIDGE
PA 600 TECHNOLOGY SQUARE, 5TH FLOOR, CAMBRIDGE, MA 02139 USA
SN 0006-3495
EI 1542-0086
J9 BIOPHYS J
JI Biophys. J.
PD JAN 27
PY 2015
VL 108
IS 2
SU 1
MA 2654-Pos
BP 524A
EP 524A
PG 1
WC Biophysics
SC Biophysics
GA CT5KV
UT WOS:000362849600262
ER
PT J
AU Garcia-Moreno, B
Ortega, G
Peck, MT
Robinson, A
Schlessman, JL
AF Garcia-Moreno, Bertrand
Ortega, Gabrieal
Peck, Meredith T.
Robinson, Aaron
Schlessman, Jamie L.
TI Backbone Flexibility as a Determinant of PKA Values of Buried Ionizable
Groups in Proteins
SO BIOPHYSICAL JOURNAL
LA English
DT Meeting Abstract
CT 59th Annual Meeting of the Biophysical-Society
CY FEB 07-11, 2015
CL Baltimore, MD
SP Biophys Soc
C1 [Garcia-Moreno, Bertrand; Peck, Meredith T.; Robinson, Aaron] Johns Hopkins Univ, Biophys, Baltimore, MD USA.
[Ortega, Gabrieal] CICbioGUNE, Struct Biol Unit, Derio, Spain.
[Schlessman, Jamie L.] US Naval Acad, Chem, Annapolis, MD USA.
NR 0
TC 0
Z9 0
U1 1
U2 1
PU CELL PRESS
PI CAMBRIDGE
PA 600 TECHNOLOGY SQUARE, 5TH FLOOR, CAMBRIDGE, MA 02139 USA
SN 0006-3495
EI 1542-0086
J9 BIOPHYS J
JI Biophys. J.
PD JAN 27
PY 2015
VL 108
IS 2
SU 1
MA 2683-Pos
BP 530A
EP 530A
PG 1
WC Biophysics
SC Biophysics
GA CT5KV
UT WOS:000362849600291
ER
PT J
AU Sorenson, JL
Mercedes, R
Schlessman, JL
Garcia-Moreno, B
AF Sorenson, Jaime L.
Mercedes, Raidizon
Schlessman, Jamie L.
Garcia-Moreno, Bertrand
TI PKA Values of Buried Groups in Proteins are Sensitive to the Global
Thermodynamic Stability
SO BIOPHYSICAL JOURNAL
LA English
DT Meeting Abstract
CT 59th Annual Meeting of the Biophysical-Society
CY FEB 07-11, 2015
CL Baltimore, MD
SP Biophys Soc
C1 [Sorenson, Jaime L.; Mercedes, Raidizon; Garcia-Moreno, Bertrand] Johns Hopkins Univ, Biophys, Baltimore, MD USA.
[Schlessman, Jamie L.] US Naval Acad, Annapolis, MD 21402 USA.
NR 0
TC 0
Z9 0
U1 1
U2 1
PU CELL PRESS
PI CAMBRIDGE
PA 600 TECHNOLOGY SQUARE, 5TH FLOOR, CAMBRIDGE, MA 02139 USA
SN 0006-3495
EI 1542-0086
J9 BIOPHYS J
JI Biophys. J.
PD JAN 27
PY 2015
VL 108
IS 2
SU 1
MA 2685-Pos
BP 530A
EP 531A
PG 2
WC Biophysics
SC Biophysics
GA CT5KV
UT WOS:000362849600293
ER
PT J
AU Schwartz, IB
Billings, L
Carr, TW
Dykman, MI
AF Schwartz, Ira B.
Billings, Lora
Carr, Thomas W.
Dykman, M. I.
TI Noise-induced switching and extinction in systems with delay
SO PHYSICAL REVIEW E
LA English
DT Article
ID BROWNIAN-MOTION; CHEMICAL-REACTIONS; EPIDEMIC MODEL; DYNAMICS; ESCAPE;
DRIVEN; APPROXIMATION; FLUCTUATIONS; STABILITY; THEOREM
AB We consider the rates of noise-induced switching between the stable states of dissipative dynamical systems with delay and also the rates of noise-induced extinction, where such systems model population dynamics. We study a class of systems where the evolution depends on the dynamical variables at a preceding time with a fixed time delay, which we call hard delay. For weak noise, the rates of interattractor switching and extinction are exponentially small. Finding these rates to logarithmic accuracy is reduced to variational problems. The solutions of the variational problems give the most probable paths followed in switching or extinction. We show that the equations for the most probable paths are acausal and formulate the appropriate boundary conditions. Explicit results are obtained for small delay compared to the relaxation rate. We also develop a direct variational method to find the rates. We find that the analytical results agree well with the numerical simulations for both switching and extinction rates.
C1 [Schwartz, Ira B.] US Naval Res Lab, Div Plasma Phys, Nonlinear Syst Dynam Sect, Washington, DC 20375 USA.
[Billings, Lora] Montclair State Univ, Dept Math Sci, Montclair, NJ 07043 USA.
[Carr, Thomas W.] So Methodist Univ, Dept Math, Dallas, TX 75275 USA.
[Dykman, M. I.] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA.
RP Schwartz, IB (reprint author), US Naval Res Lab, Div Plasma Phys, Nonlinear Syst Dynam Sect, Code 6792, Washington, DC 20375 USA.
FU Office of Naval Research [N0001414WX00023]; NRL 6.1 Base program
[N0001414WX20610]; National Science Foundation [CMMI-1233397,
DMS-0959461]; US Army Research Office [W911NF-12-1-0235]; US Defense
Advanced Research Projects Agency [FA8650-13-1-7301]
FX I.B.S. gratefully acknowledges support from the Office of Naval Research
(N0001414WX00023) and NRL 6.1 Base program (N0001414WX20610). L.B. was
supported by the National Science Foundation under CMMI-1233397 and
DMS-0959461. M.I.D. is supported by US Army Research Office
(W911NF-12-1-0235) and US Defense Advanced Research Projects Agency
(FA8650-13-1-7301). Any opinion, findings, and conclusions or
recommendations expressed in this material are those of the authors and
do not necessarily reflect the views of the National Science Foundation,
the ARO, and DARPA.
NR 59
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U1 2
U2 7
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 2470-0045
EI 2470-0053
J9 PHYS REV E
JI Phys. Rev. E
PD JAN 26
PY 2015
VL 91
IS 1
AR 012139
DI 10.1103/PhysRevE.91.012139
PG 13
WC Physics, Fluids & Plasmas; Physics, Mathematical
SC Physics
GA CA1OE
UT WOS:000348681000002
PM 25679602
ER
PT J
AU Dev, P
Reinecke, TL
AF Dev, Pratibha
Reinecke, Thomas L.
TI Stabilizing graphene-based organometallic sandwich structures through
defect engineering
SO PHYSICAL REVIEW B
LA English
DT Article
ID GENERALIZED GRADIENT APPROXIMATION; ELECTRONIC-PROPERTIES; DOPED
GRAPHENE; 1ST-PRINCIPLES; GRAPHITE
AB In this theoretical work, we propose a chemical route to creating stable benzene-transition metal-graphene sandwich structures. The binding energy of the transition metal to graphene is enhanced through adsorption at appropriate defects, immobilizing the metal onto the graphene web. Capping the metal with a benzene ring further stabilizes the structure. The stability and the magnetic properties of these composite structures vary for different defects such as vacancies and nitrogen substitutionals in graphene. The proposed complexes have high cohesive energies and are either metallic or are small-band-gap semiconductors. Several of the proposed structures also have large spin polarization energies that make them suitable for use as nanomagnets in ambient conditions. This work also sheds light on the experimental results in the field where the sandwich structures may have been successfully created. We show that defect engineering is a viable option for creating designer, graphene-based structures that may play an important role in fields as diverse as spintronics, nanoelectronics, hydrogen storage, and catalysis.
C1 [Dev, Pratibha; Reinecke, Thomas L.] Naval Res Lab, Washington, DC 20375 USA.
RP Dev, P (reprint author), Naval Res Lab, Code 6877, Washington, DC 20375 USA.
FU U.S. Office of Naval Research
FX This work was supported by the U.S. Office of Naval Research. Computer
resources were provided by the DoD High Performance Computing
Modernization Program. P.D. acknowledges the NRL-NRC Research
Associateship Program. We thank V.M. Bermudez (Naval Research
Laboratory) and Peihong Zhang (University at Buffalo) for valuable
discussions concerning this work.
NR 47
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Z9 3
U1 7
U2 37
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 JAN 26
PY 2015
VL 91
IS 3
AR 035436
DI 10.1103/PhysRevB.91.035436
PG 10
WC Physics, Condensed Matter
SC Physics
GA AZ8OU
UT WOS:000348475700008
ER
PT J
AU D'Ammando, F
Orienti, M
Finke, J
Raiteri, CM
Hovatta, T
Larsson, J
Max-Moerbeck, W
Perkins, J
Readhead, ACS
Richards, JL
Beilicke, M
Benbow, W
Berger, K
Bird, R
Bugaev, V
Cardenzana, JV
Cerruti, M
Chen, X
Ciupik, L
Dickinson, HJ
Eisch, JD
Errando, M
Falcone, A
Finley, JP
Fleischhack, H
Fortin, P
Fortson, L
Furniss, A
Gerard, L
Gillanders, GH
Griffiths, ST
Grube, J
Gyuk, G
Hakansson, N
Holder, J
Humensky, TB
Kar, P
Kertzman, M
Khassen, Y
Kieda, D
Krennrich, F
Kumar, S
Lang, MJ
Maier, G
McCann, A
Meagher, K
Moriarty, P
Mukherjee, R
Nieto, D
de Bhroithe, AO
Ong, RA
Otte, AN
Pohl, M
Popkow, A
Prokoph, H
Pueschel, E
Quinn, J
Ragan, K
Reynolds, PT
Richards, GT
Roache, E
Rousselle, J
Santander, M
Sembroski, GH
Smith, AW
Staszak, D
Telezhinsky, I
Tucci, JV
Tyler, J
Varlotta, A
Vassiliev, VV
Wakely, SP
Weinstein, A
Welsing, R
Williams, DA
Zitzer, B
AF D'Ammando, F.
Orienti, M.
Finke, J.
Raiteri, C. M.
Hovatta, T.
Larsson, J.
Max-Moerbeck, W.
Perkins, J.
Readhead, A. C. S.
Richards, J. L.
Beilicke, M.
Benbow, W.
Berger, K.
Bird, R.
Bugaev, V.
Cardenzana, J. V.
Cerruti, M.
Chen, X.
Ciupik, L.
Dickinson, H. J.
Eisch, J. D.
Errando, M.
Falcone, A.
Finley, J. P.
Fleischhack, H.
Fortin, P.
Fortson, L.
Furniss, A.
Gerard, L.
Gillanders, G. H.
Griffiths, S. T.
Grube, J.
Gyuk, G.
Hakansson, N.
Holder, J.
Humensky, T. B.
Kar, P.
Kertzman, M.
Khassen, Y.
Kieda, D.
Krennrich, F.
Kumar, S.
Lang, M. J.
Maier, G.
McCann, A.
Meagher, K.
Moriarty, P.
Mukherjee, R.
Nieto, D.
de Bhroithe, A. O'Faolain
Ong, R. A.
Otte, A. N.
Pohl, M.
Popkow, A.
Prokoph, H.
Pueschel, E.
Quinn, J.
Ragan, K.
Reynolds, P. T.
Richards, G. T.
Roache, E.
Rousselle, J.
Santander, M.
Sembroski, G. H.
Smith, A. W.
Staszak, D.
Telezhinsky, I.
Tucci, J. V.
Tyler, J.
Varlotta, A.
Vassiliev, V. V.
Wakely, S. P.
Weinstein, A.
Welsing, R.
Williams, D. A.
Zitzer, B.
CA VERITAS Collaboration
TI The most powerful flaring activity from the NLSyl PMN J0948+0022
SO MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
LA English
DT Article
DE galaxies: active-galaxies: individual: PMN J0948+0022; galaxies: nuclei;
galaxies: Seyfert; gamma-rays: general
ID LINE SEYFERT 1; GAMMA-RAY EMISSION; LARGE-AREA TELESCOPE; QUASAR PKS
1510-089; EXTRAGALACTIC BACKGROUND LIGHT; SPECTRUM RADIO QUASARS;
GALACTIC NUCLEI; X-RAY; MULTIWAVELENGTH OBSERVATIONS; RELATIVISTIC JETS
AB We report on multifrequency observations performed during 2012 December-2013 August of the first narrow-line Seyfert 1 galaxy detected in gamma-rays, PMN J0948+0022 (z = 0.5846). A y -ray flare was observed by the Large Area Telescope on board Fermi during 2012 December-2013 January, reaching a daily peak flux in the 0.1-100 GeV energy range of (155 31) x 10 8 ph cm(-2) S-1 on 2013 January 1, corresponding to an apparent isotropic luminosity of similar to 1.5 x 1048 erg s(-1). The y -ray flaring period triggered Swift and Very Energetic Radiation Imaging Telescope Array System (VERITAS) observations in addition to radio and optical monitoring by Owens Valley Radio Observatory, Monitoring Of Jets in Active galactic nuclei with VLBA Experiments, and Catalina Real-time Transient Survey. A strong flare was observed in optical, UV, and X-rays on 2012 December 30, quasi-simultaneously to the y -ray flare, reaching a record flux for this source from optical to y gamma-rays. VERITAS observations at very high energy (E > 100 GeV) during 2013 January 6-17 resulted in an upper limit of F>0.2 Trev < 4.0 x 10(-12) ph cm(-2) s(-1). We compared the spectral energy distribution (SED) of the flaring state in 2013 January with that of an intermediate state observed in 2011. The two SEDs, modelled as synchrotron emission and an external Compton scattering of seed photons from a dust torus, can be modelled by changing both the electron distribution parameters and the magnetic field.
C1 [D'Ammando, F.] Univ Bologna, Dipartimento Fis & Astron, I-40127 Bologna, Italy.
[D'Ammando, F.] Inaf Ist Radioastron, I-40129 Bologna, Italy.
[Finke, J.] US Naval Res Lab, Washington, DC 20375 USA.
[Raiteri, C. M.] INAF Osservatorio Astrofis Torino, I-10025 Pino Torinese, TO, Italy.
[Hovatta, T.; Readhead, A. C. S.] CALTECH, Cahill Ctr Astron & Astrophys, Pasadena, CA 91125 USA.
[Larsson, J.] KTH, Dept Phys, SE-10691 Stockholm, Sweden.
[Larsson, J.] KTH, Oskar Klein Ctr, SE-10691 Stockholm, Sweden.
[Max-Moerbeck, W.] Natl Radio Astron Observ NRAO, Socorro, NM 87801 USA.
[Perkins, J.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Richards, J. L.; Finley, J. P.; Sembroski, G. H.; Tucci, J. V.; Varlotta, A.] Purdue Univ, Dept Phys, W Lafayette, IN 47907 USA.
[Beilicke, M.; Bugaev, V.] Washington Univ, Dept Phys, St Louis, MO 63130 USA.
[Benbow, W.; Cerruti, M.; Fortin, P.; Roache, E.] Harvard Smithsonian Ctr Astrophys, Fred Lawrence Whipple Observ, Amado, AZ 85645 USA.
[Berger, K.; Holder, J.; Kumar, S.] Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA.
[Berger, K.; Holder, J.; Kumar, S.] Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA.
[Bird, R.; Khassen, Y.; Pueschel, E.; Quinn, J.] Univ Coll Dublin, Sch Phys, Dublin 4, Ireland.
[Cardenzana, J. V.; Dickinson, H. J.; Eisch, J. D.; Krennrich, F.; Weinstein, A.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA.
[Chen, X.; Hakansson, N.; Pohl, M.; Telezhinsky, I.] Univ Potsdam, Inst Phys & Astron, D-14476 Potsdam, Germany.
[Chen, X.; Fleischhack, H.; Gerard, L.; Maier, G.; de Bhroithe, A. O'Faolain; Pohl, M.; Prokoph, H.; Telezhinsky, I.; Welsing, R.] DESY, D-15738 Zeuthen, Germany.
[Ciupik, L.; Grube, J.; Gyuk, G.] Adler Planetarium & Astron Museum, Dept Astron, Chicago, IL 60605 USA.
[Errando, M.; Mukherjee, R.; Santander, M.] Columbia Univ, Barnard Coll, Dept Phys & Astron, New York, NY 10027 USA.
[Falcone, A.] Penn State Univ, Dept Astron & Astrophys, Davey Lab 525, University Pk, PA 16802 USA.
[Fortson, L.] Univ Minnesota, Sch Phys & Astron, Minneapolis, MN 55455 USA.
[Furniss, A.; Williams, D. A.] Univ Calif Santa Cruz, Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA.
[Furniss, A.; Williams, D. A.] Univ Calif Santa Cruz, Dept Phys, Santa Cruz, CA 95064 USA.
[Gillanders, G. H.; Lang, M. J.; Moriarty, P.] Natl Univ Ireland Galway, Sch Phys, Galway, Ireland.
[Griffiths, S. T.] Univ Iowa, Dept Phys & Astron, Iowa City, IA 52242 USA.
[Humensky, T. B.; Nieto, D.] Columbia Univ, Dept Phys, New York, NY 10027 USA.
[Kar, P.; Kieda, D.; Smith, A. W.] Univ Utah, Dept Phys & Astron, Salt Lake City, UT 84112 USA.
[Kertzman, M.] Depauw Univ, Dept Phys & Astron, Greencastle, IN 46135 USA.
[McCann, A.] Univ Chicago, Kavli Inst Cosmol Phys, Chicago, IL 60637 USA.
[Meagher, K.; Otte, A. N.; Richards, G. T.] Georgia Inst Technol, Sch Phys, Atlanta, GA 30332 USA.
[Meagher, K.; Otte, A. N.; Richards, G. T.] Georgia Inst Technol, Ctr Relativist Astrophys, Atlanta, GA 30332 USA.
[Ong, R. A.; Popkow, A.; Rousselle, J.; Vassiliev, V. V.] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA.
[Ragan, K.; Staszak, D.; Tyler, J.] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada.
[Reynolds, P. T.] Cork Inst Technol, Dept Appl Phys & Instrumentat, Cork, Ireland.
[Wakely, S. P.] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA.
[Zitzer, B.] Argonne Natl Lab, Argonne, IL 60439 USA.
RP D'Ammando, F (reprint author), Univ Bologna, Dipartimento Fis & Astron, Viale Berti Pichat 6-2, I-40127 Bologna, Italy.
EM dammando@ira.inaf.it; dammando@ira.inaf.it; dammando@ira.inaf.it;
dammando@ira.inaf.it; dammando@ira.inaf.it; dammando@ira.inaf.it;
dammando@ira.inaf.it
RI Nieto, Daniel/J-7250-2015
OI Nieto, Daniel/0000-0003-3343-0755
FU US Department of Energy Office of Science; Smithsonian Institution;
NSERC in Canada; Science Foundation Ireland [SFI 10/RFP/AST2748];
Science and Technology Facilities Council in the UK; NASA [NNX08AW31G,
NNX11A043G]; NSF [AST-0808050, AST-1109911]; US National Science
Foundation [AST-0909182]; Fermi Guest Investigator grants [NNX08AW56G,
NNX09AU10G, NNX12AO93G]
FX The VERITAS Collaboration is grateful to Trevor Weekes for his seminal
contributions and leadership in the field of VHE gamma-ray astrophysics,
which made this study possible. The work of the VERITAS Collaboration is
supported by grants from the US Department of Energy Office of Science,
the US National Science Foundation, and the Smithsonian Institution, by
NSERC in Canada, by Science Foundation Ireland (SFI 10/RFP/AST2748) and
by the Science and Technology Facilities Council in the UK. We
acknowledge the excellent work of the technical support staff at the
Fred Lawrence Whipple Observatory and at the collaborating institutions
in the construction and operation of the instrument.; We thank the Swift
team for making these observations possible, the duty scientists, and
science planners. The OVRO 40 m monitoring programme is supported in
part by NASA grants NNX08AW31G and NNX11A043G, and NSF grants
AST-0808050 and AST-1109911. The CRTS survey is supported by the US
National Science Foundation under grants AST-0909182. This research has
made use of data from the MOJAVE data base that is maintained by the
MOJAVE team (Lister et al. 2009). Data from the Steward Observatory
spectropolarimetric monitoring project were used. This programme is
supported by Fermi Guest Investigator grants NNX08AW56G, NNX09AU10G, and
NNX12AO93G. The National Radio Astronomy Observatory is a facility of
the National Science Foundation operated under cooperative agreement by
Associated Universities, Inc. We thank F. Schinzel, S. Digel, P. Bruel,
and the referee, Anthony M. Brown, for useful comments and suggestions.
NR 88
TC 9
Z9 9
U1 1
U2 11
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 JAN 21
PY 2015
VL 446
IS 3
BP 2456
EP 2467
DI 10.1093/mnras/stu2251
PG 12
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA CC3TG
UT WOS:000350272300020
ER
PT J
AU Ackermann, M
Ajello, M
Albert, A
Atwood, WB
Baldini, L
Ballet, J
Barbiellini, G
Bastieri, D
Bechtol, K
Bellazzini, R
Bissaldi, E
Blandford, RD
Bloom, ED
Bottacini, E
Brandt, TJ
Bregeon, J
Bruel, P
Buehler, R
Buson, S
Caliandro, GA
Cameron, RA
Caragiulo, M
Caraveo, PA
Cavazzuti, E
Cecchi, C
Charles, E
Chekhtman, A
Chiang, J
Chiaro, G
Ciprini, S
Claus, R
Cohen-Tanugi, J
Conrad, J
Cuoco, A
Cutini, S
D'Ammando, F
de Angelis, A
de Palma, F
Dermer, CD
Digel, SW
Silva, EDE
Drell, PS
Favuzzi, C
Ferrara, EC
Focke, WB
Franckowiak, A
Fukazawa, Y
Funk, S
Fusco, P
Gargano, F
Gasparrini, D
Germani, S
Giglietto, N
Giommi, P
Giordano, F
Giroletti, M
Godfrey, G
Gomez-Vargas, GA
Grenier, IA
Guiriec, S
Gustafsson, M
Hadasch, D
Hayashi, K
Hays, E
Hewitt, JW
Ippoliti, P
Jogler, T
Johannesson, G
Johnson, AS
Johnson, WN
Kamae, T
Kataoka, J
Knodlseder, J
Kuss, M
Larsson, S
Latronico, L
Li, J
Li, L
Longo, F
Loparco, F
Lott, B
Lovellette, MN
Lubrano, P
Madejski, GM
Manfreda, A
Massaro, F
Mayer, M
Mazziotta, MN
McEnery, JE
Michelson, PF
Mitthumsiri, W
Mizuno, T
Moiseev, AA
Monzani, ME
Morselli, A
Moskalenko, IV
Murgia, S
Nemmen, R
Nuss, E
Ohsugi, T
Omodei, N
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
Razzaque, S
Reimer, A
Reimer, O
Reposeur, T
Ritz, S
Romani, RW
Sanchez-Conde, M
Schaal, M
Schulz, A
Sgro, C
Siskind, EJ
Spandre, G
Spinelli, P
Strong, AW
Suson, DJ
Takahashi, H
Thayer, JG
Thayer, JB
Tibaldo, L
Tinivella, M
Torres, DF
Tosti, G
Troja, E
Uchiyama, Y
Vianello, G
Werner, M
Winer, BL
Wood, KS
Wood, M
Zaharijas, G
Zimmer, S
AF Ackermann, M.
Ajello, M.
Albert, A.
Atwood, W. B.
Baldini, L.
Ballet, J.
Barbiellini, G.
Bastieri, D.
Bechtol, K.
Bellazzini, R.
Bissaldi, E.
Blandford, R. D.
Bloom, E. D.
Bottacini, E.
Brandt, T. J.
Bregeon, J.
Bruel, P.
Buehler, R.
Buson, S.
Caliandro, G. A.
Cameron, R. A.
Caragiulo, M.
Caraveo, P. A.
Cavazzuti, E.
Cecchi, C.
Charles, E.
Chekhtman, A.
Chiang, J.
Chiaro, G.
Ciprini, S.
Claus, R.
Cohen-Tanugi, J.
Conrad, J.
Cuoco, A.
Cutini, S.
D'Ammando, F.
de Angelis, A.
de Palma, F.
Dermer, C. D.
Digel, S. W.
do Couto e Silva, E.
Drell, P. S.
Favuzzi, C.
Ferrara, E. C.
Focke, W. B.
Franckowiak, A.
Fukazawa, Y.
Funk, S.
Fusco, P.
Gargano, F.
Gasparrini, D.
Germani, S.
Giglietto, N.
Giommi, P.
Giordano, F.
Giroletti, M.
Godfrey, G.
Gomez-Vargas, G. A.
Grenier, I. A.
Guiriec, S.
Gustafsson, M.
Hadasch, D.
Hayashi, K.
Hays, E.
Hewitt, J. W.
Ippoliti, P.
Jogler, T.
Johannesson, G.
Johnson, A. S.
Johnson, W. N.
Kamae, T.
Kataoka, J.
Knoedlseder, J.
Kuss, M.
Larsson, S.
Latronico, L.
Li, J.
Li, L.
Longo, F.
Loparco, F.
Lott, B.
Lovellette, M. N.
Lubrano, P.
Madejski, G. M.
Manfreda, A.
Massaro, F.
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.
Nemmen, R.
Nuss, E.
Ohsugi, T.
Omodei, N.
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.
Razzaque, S.
Reimer, A.
Reimer, O.
Reposeur, T.
Ritz, S.
Romani, R. W.
Sanchez-Conde, M.
Schaal, M.
Schulz, A.
Sgro, C.
Siskind, E. J.
Spandre, G.
Spinelli, P.
Strong, A. W.
Suson, D. J.
Takahashi, H.
Thayer, J. G.
Thayer, J. B.
Tibaldo, L.
Tinivella, M.
Torres, D. F.
Tosti, G.
Troja, E.
Uchiyama, Y.
Vianello, G.
Werner, M.
Winer, B. L.
Wood, K. S.
Wood, M.
Zaharijas, G.
Zimmer, S.
TI THE SPECTRUM OF ISOTROPIC DIFFUSE GAMMA-RAY EMISSION BETWEEN 100 MeV AND
820 GeV
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE diffuse radiation; gamma rays: diffuse background
ID LARGE-AREA TELESCOPE; ACTIVE GALACTIC NUCLEI; STAR-FORMING GALAXIES;
FERMI-LAT; X-RAY; BACKGROUND-RADIATION; DARK-MATTER; EGRET DATA;
MILKY-WAY; CATALOG
AB The gamma-ray sky can be decomposed into individually detected sources, diffuse emission attributed to the interactions of Galactic cosmic rays with gas and radiation fields, and a residual all-sky emission component commonly called the isotropic diffuse gamma-ray background (IGRB). The IGRB comprises all extragalactic emissions too faint or too diffuse to be resolved in a given survey, as well as any residual Galactic foregrounds that are approximately isotropic. The first IGRB measurement with the Large Area Telescope (LAT) on board the Fermi Gamma-ray Space Telescope (Fermi) used 10 months of sky-survey data and considered an energy range between 200 MeV and 100 GeV. Improvements in event selection and characterization of cosmic-ray backgrounds, better understanding of the diffuse Galactic emission (DGE), and a longer data accumulation of 50 months allow for a refinement and extension of the IGRB measurement with the LAT, now covering the energy range from 100 MeV to 820 GeV. The IGRB spectrum shows a significant high-energy cutoff feature and can be well described over nearly four decades in energy by a power law with exponential cutoff having a spectral index of 2.32 +/- 0.02 and a break energy of (279 +/- 52) GeV using our baseline DGE model. The total intensity attributed to the IGRB is (7.2 +/- 0.6) x 10(-6) cm(-2) s(-1) sr(-1) above 100 MeV, with an additional +15%/-30% systematic uncertainty due to the Galactic diffuse foregrounds.
C1 [Ackermann, M.; Buehler, R.; Mayer, M.; Schulz, A.] Deutsch Elektronen Synchrotron DESY, D-15738 Zeuthen, Germany.
[Ajello, M.] Clemson Univ, Dept Phys & Astron, Kinard Lab Phys, Clemson, SC 29634 USA.
[Albert, A.; Blandford, R. D.; Bloom, E. D.; Bottacini, E.; Caliandro, G. A.; Cameron, R. A.; Charles, E.; Chiang, J.; Claus, R.; Digel, S. W.; do Couto e Silva, E.; Drell, P. S.; Focke, W. B.; Franckowiak, A.; Funk, S.; Godfrey, G.; Jogler, T.; Johnson, A. S.; Kamae, T.; Madejski, G. M.; Michelson, P. F.; Monzani, M. E.; Moskalenko, I. V.; Omodei, N.; Orlando, E.; Paneque, D.; Panetta, J. H.; Porter, T. A.; Reimer, A.; Reimer, O.; Romani, R. W.; Sanchez-Conde, M.; Thayer, J. G.; Thayer, J. B.; Tibaldo, L.; Vianello, G.; Wood, M.] Stanford Univ, Dept Phys, Kavli Inst Particle Astrophys & Cosmol, WW Hansen Expt Phys Lab, Stanford, CA 94305 USA.
[Albert, A.; Blandford, R. D.; Bloom, E. D.; Bottacini, E.; Caliandro, G. A.; Cameron, R. A.; Charles, E.; Chiang, J.; Claus, R.; Digel, S. W.; do Couto e Silva, E.; Drell, P. S.; Focke, W. B.; Franckowiak, A.; Funk, S.; Godfrey, G.; Jogler, T.; Johnson, A. S.; Kamae, T.; Madejski, G. M.; Michelson, P. F.; Monzani, M. E.; Moskalenko, I. V.; Omodei, N.; Orlando, E.; Paneque, D.; Panetta, J. H.; Porter, T. A.; Reimer, A.; Reimer, O.; Romani, R. W.; Sanchez-Conde, M.; Thayer, J. G.; Thayer, J. B.; Tibaldo, L.; Vianello, G.; Wood, M.] Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA.
[Atwood, W. B.; Ritz, S.] Univ Calif Santa Cruz, Dept Phys, Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA.
[Atwood, W. B.; Ritz, S.] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA.
[Baldini, L.; Bellazzini, R.; Kuss, M.; Manfreda, A.; Pesce-Rollins, M.; Pivato, G.; Razzano, M.; Sgro, C.; Spandre, G.; Tinivella, M.] Ist Nazl Fis Nucl, I-56127 Pisa, Italy.
[Ballet, J.; Grenier, I. A.] Univ Paris Diderot, CEA Saclay, Serv Astrophys, Lab AIM,CEA IRFU,CNRS, 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.; Rando, R.] Univ Padua, Dipartimento Fis & Astron G Galilei, I-35131 Padua, Italy.
[Bechtol, K.] Univ Chicago, Kavli Inst Cosmol Phys, Chicago, IL 60637 USA.
[Bissaldi, E.; Zaharijas, G.] Ist Nazl Fis Nucl, Sez Trieste, I-34127 Trieste, Italy.
[Bissaldi, E.; Zaharijas, G.] Univ Trieste, I-34127 Trieste, Italy.
[Brandt, T. J.; Ferrara, E. C.; Guiriec, S.; Hays, E.; McEnery, J. E.; Nemmen, R.; Perkins, J. S.; Troja, E.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Bregeon, J.; Cohen-Tanugi, J.; Nuss, E.; Piron, F.] Univ Montpellier 2, Lab Universe & Particules Montpellier, CNRS, IN2P3, F-34095 Montpellier, France.
[Bruel, P.] Ecole Polytech, CNRS, Lab Leprince Ringuet, IN2P3, F-91128 Palaiseau, France.
[Caliandro, G. A.] CIFS, I-10133 Turin, Italy.
[Caragiulo, 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.
[Caraveo, P. A.] INAF Ist Astrofis Spaziale & Fis Cosm, I-20133 Milan, Italy.
[Cavazzuti, E.; Ciprini, S.; Cutini, S.; Gasparrini, D.; Giommi, P.] Agenzia Spaziale Italiana ASI Sci Data Ctr, I-00133 Rome, Italy.
[Cecchi, C.; Germani, S.; Lubrano, P.; Tosti, G.] Ist Nazl Fis Nucl, Sez Perugia, I-06123 Perugia, Italy.
[Cecchi, C.; Germani, S.; Lubrano, P.; Tosti, G.] Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy.
[Chekhtman, A.] George Mason Univ, Coll Sci, Ctr Earth Observing & Space Res, Fairfax, VA 22030 USA.
[Ciprini, S.; Cutini, S.; Gasparrini, D.] INAF Osservatorio Astron Roma, I-00040 Monte Porzio Catone, Roma, Italy.
[Conrad, J.; Larsson, S.; Zimmer, S.] Stockholm Univ, AlbaNova, Dept Phys, SE-10691 Stockholm, Sweden.
[Conrad, J.; Cuoco, A.; Larsson, S.; Li, L.; Zimmer, S.] AlbaNova, Oskar Klein Ctr Cosmoparticle Phys, SE-10691 Stockholm, Sweden.
[Conrad, J.] Royal Swedish Acad Sci, SE-10405 Stockholm, Sweden.
[Cuoco, A.; Latronico, L.] Ist Nazl Fis Nucl, Sez Torino, I-10125 Turin, Italy.
[Cuoco, A.] Univ Turin, Dipartimento Fis Gen Amadeo Avogadro, I-10125 Turin, Italy.
[D'Ammando, F.; Giroletti, M.; Ippoliti, P.] INAF Ist Radioastron, I-40129 Bologna, Italy.
[D'Ammando, F.] Univ Bologna, Dipartimento Astron, I-40127 Bologna, Italy.
[de Angelis, A.] Univ Udine, Dipartimento Fis, I-33100 Udine, Italy.
[de Angelis, A.] Ist Nazl Fis Nucl, Sez Trieste, Grp Collegato Udine, I-33100 Udine, Italy.
[de Palma, F.] Univ Telemat Pegaso, I-80132 Naples, Italy.
[Dermer, C. D.; Johnson, W. N.; Lovellette, M. N.; Wood, K. S.] Naval Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Favuzzi, C.; Fusco, P.; Giglietto, N.; Giordano, F.; Loparco, F.; Raino, S.; Spinelli, P.] Univ & Politecn Bari, Dipartimento Fis M Merlin, I-70126 Bari, Italy.
[Fukazawa, Y.; Takahashi, H.] Hiroshima Univ, Dept Phys Sci, Hiroshima 7398526, Japan.
[Gomez-Vargas, G. A.; Morselli, A.] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, I-00133 Rome, Italy.
[Gomez-Vargas, G. A.] Pontificia Univ Catolica Chile, Dept Fis, Santiago, Chile.
[Gustafsson, M.] Univ Libre Bruxelles, Serv Phys Theor, B-1050 Brussels, Belgium.
[Hadasch, D.; Reimer, A.; Reimer, O.; Werner, M.] Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria.
[Hadasch, D.; Reimer, A.; Reimer, O.; Werner, M.] Leopold Franzens Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria.
[Hayashi, K.] Japan Aerosp Explorat Agcy, Inst Space & Astronaut Sci, Chuo Ku, Sagamihara, Kanagawa 2525210, Japan.
[Hewitt, J. W.; Nemmen, R.] Univ Maryland Baltimore Cty, Dept Phys, Baltimore, MD 21250 USA.
[Hewitt, J. W.; Nemmen, R.] Univ Maryland Baltimore Cty, Ctr Space Sci & Technol, Baltimore, MD 21250 USA.
[Hewitt, J. W.; Moiseev, A. A.; Nemmen, R.] CRESST, Greenbelt, MD 20771 USA.
[Hewitt, J. W.; Moiseev, A. A.; Nemmen, R.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Johannesson, G.] Univ Iceland, Inst Sci, IS-107 Reykjavik, Iceland.
[Kataoka, J.] Waseda Univ, Res Inst Sci & Engn, Shinjuku Ku, Tokyo 1698555, Japan.
[Knoedlseder, J.] CNRS, IRAP, F-31028 Toulouse 4, France.
[Knoedlseder, J.] Univ Toulouse, UPS OMP, IRAP, GAHEC, F-31400 Toulouse, France.
[Larsson, S.] Stockholm Univ, Dept Astron, SE-10691 Stockholm, Sweden.
[Li, J.; Torres, D. F.] Inst Space Sci IEEC CSIC, E-08193 Barcelona, Spain.
[Li, L.] KTH Royal Inst Technol, Dept Phys, SE-10691 Stockholm, Sweden.
[Lott, B.; Reposeur, T.] Univ Bordeaux 1, CNRS, Ctr Etud Nucl Bordeaux Gradignan, IN2P3, F-33175 Gradignan, France.
[Massaro, F.] Yale Univ, Dept Phys, Dept Astron, New Haven, CT 06520 USA.
[Massaro, F.] Yale Univ, Yale Ctr Astron & Astrophys, New Haven, CT 06520 USA.
[McEnery, J. E.; Moiseev, A. A.; Troja, E.] Univ Maryland, Dept Phys, College Pk, MD 20742 USA.
[McEnery, J. E.; Moiseev, A. A.; Troja, E.] Univ Maryland, Dept Astron, College Pk, MD 20742 USA.
[Mitthumsiri, W.] Mahidol Univ, Fac Sci, Dept Phys, Bangkok 10400, Thailand.
[Mizuno, T.; Ohsugi, T.] Hiroshima Univ, Hiroshima Astrophys Sci Ctr, Hiroshima 7398526, Japan.
[Murgia, S.] Univ Calif Irvine, Ctr Cosmol, Dept Phys & Astron, Irvine, CA 92697 USA.
[Ormes, J. F.] Univ Denver, Dept Phys & Astron, Denver, CO 80208 USA.
[Paneque, D.] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany.
[Razzaque, S.] Univ Johannesburg, Dept Phys, ZA-2006 Auckland Pk, South Africa.
[Schaal, M.] Natl Acad Sci, Natl Res Council Res Associate, Washington, DC 20001 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.
Purdue Univ Calumet, Dept Chem & Phys, Hammond, IN 46323 USA.
[Torres, D. F.] ICREA, E-08028 Barcelona, Spain.
[Winer, B. L.] Ohio State Univ, Dept Phys, Ctr Cosmol & Astroparticle Phys, Columbus, OH 43210 USA.
[Zaharijas, G.] Abdus Salam Int Ctr Theoret Phys, I-34151 Trieste, Italy.
RP Ackermann, M (reprint author), Deutsch Elektronen Synchrotron DESY, D-15738 Zeuthen, Germany.
EM markus.ackermann@desy.de; bechtol@kicp.uchicago.edu
RI Massaro, Francesco/L-9102-2016; Torres, Diego/O-9422-2016; Orlando,
E/R-5594-2016; Mazziotta, Mario /O-8867-2015; Gargano,
Fabio/O-8934-2015; giglietto, nicola/I-8951-2012; Moskalenko,
Igor/A-1301-2007; Gomez-Vargas, German/C-7138-2015; Nemmen,
Rodrigo/O-6841-2014; Morselli, Aldo/G-6769-2011; Reimer,
Olaf/A-3117-2013; Funk, Stefan/B-7629-2015; Johannesson,
Gudlaugur/O-8741-2015; Loparco, Francesco/O-8847-2015; Sgro,
Carmelo/K-3395-2016; Bissaldi, Elisabetta/K-7911-2016
OI Gasparrini, Dario/0000-0002-5064-9495; Baldini,
Luca/0000-0002-9785-7726; Ajello, Marco/0000-0002-6584-1703; Massaro,
Francesco/0000-0002-1704-9850; Torres, Diego/0000-0002-1522-9065;
giommi, paolo/0000-0002-2265-5003; Caraveo,
Patrizia/0000-0003-2478-8018; Sgro', Carmelo/0000-0001-5676-6214;
Zaharijas, Gabrijela/0000-0001-8484-7791; SPINELLI,
Paolo/0000-0001-6688-8864; Giroletti, Marcello/0000-0002-8657-8852;
Bastieri, Denis/0000-0002-6954-8862; Pesce-Rollins,
Melissa/0000-0003-1790-8018; Mazziotta, Mario /0000-0001-9325-4672;
Gargano, Fabio/0000-0002-5055-6395; giglietto,
nicola/0000-0002-9021-2888; Moskalenko, Igor/0000-0001-6141-458X;
Morselli, Aldo/0000-0002-7704-9553; Reimer, Olaf/0000-0001-6953-1385;
Funk, Stefan/0000-0002-2012-0080; Johannesson,
Gudlaugur/0000-0003-1458-7036; Loparco, Francesco/0000-0002-1173-5673;
Bissaldi, Elisabetta/0000-0001-9935-8106
FU NASA [NNX09AC15G]
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'EnergieAtomique 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. GALPROP
development is partially funded via NASA grant NNX09AC15G. Some of the
results in this paper have been derived using the HEALPix (Gorski et al.
2005) package.
NR 117
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U1 2
U2 25
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 JAN 20
PY 2015
VL 799
IS 1
AR 86
DI 10.1088/0004-637X/799/1/86
PG 24
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA AZ4SY
UT WOS:000348214500084
ER
PT J
AU Crenshaw, DM
Fischer, TC
Kraemer, SB
Schmitt, HR
AF Crenshaw, D. Michael
Fischer, Travis C.
Kraemer, Steven B.
Schmitt, Henrique R.
TI FEEDBACK FROM MASS OUTFLOWS IN NEARBY ACTIVE GALACTIC NUCLEI. II.
OUTFLOWS IN THE NARROW-LINE REGION OF NGC 4151
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE galaxies: active; galaxies: individual (NGC 4151); galaxies: kinematics
and dynamics; galaxies: Seyfert
ID DEEP CHANDRA ACIS; BLACK-HOLES; SEYFERT-GALAXIES; GEMINI NIFS; I.;
ABSORBERS; EMISSION; KINEMATICS; NGC-4151; QUASARS
AB We present a detailed study of active galactic nucleus feedback in the narrow-line region (NLR) of the Seyfert 1 galaxy NGC 4151. We illustrate the data and techniques needed to determine the mass outflow rate ((M) over dot(out)) and kinetic luminosity (L-KE) of the outflowing ionized gas as a function of position in the NLR. We find that (M) over dot(out) peaks at a value of 3.0 M-circle dot yr(-1) at a distance of 70 pc from the central supermassive black hole (SMBH), which is about 10 times the outflow rate coming from inside 13 pc, and 230 times the mass accretion rate inferred from the bolometric luminosity of NGC 4151. Thus, most of the outflow must arise from in situ acceleration of ambient gas throughout the NLR. L-KE peaks at 90 pc and drops rapidly thereafter, indicating that most of the kinetic energy is deposited within about 100 pc from the SMBH. Both values exceed the (M) over dot(out) and L-KE determined for the UV/X-ray absorber outflows in NGC 4151, indicating the importance of NLR outflows in providing feedback on scales where circumnuclear star formation and bulge growth occur.
C1 [Crenshaw, D. Michael; Fischer, Travis C.] Georgia State Univ, Dept Phys & Astron, Atlanta, GA 30303 USA.
[Kraemer, Steven B.] Catholic Univ Amer, Dept Phys, Inst Astrophys & Computat Sci, Washington, DC 20064 USA.
[Schmitt, Henrique R.] Naval Res Lab, Washington, DC 20375 USA.
RP Crenshaw, DM (reprint author), Georgia State Univ, Dept Phys & Astron, 25 Pk Pl,Suite 605, Atlanta, GA 30303 USA.
EM crenshaw@astro.gsu.edu; fischer@astro.gsu.edu;
steven.b.kraemer@nasa.gov; schmitt.henrique@gmail.com
NR 31
TC 4
Z9 4
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 JAN 20
PY 2015
VL 799
IS 1
AR 83
DI 10.1088/0004-637X/799/1/83
PG 6
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA AZ4SY
UT WOS:000348214500081
ER
PT J
AU Goodman, DS
Wells, JE
Kwolek, JM
Blumel, R
Narducci, FA
Smith, WW
AF Goodman, D. S.
Wells, J. E.
Kwolek, J. M.
Bluemel, R.
Narducci, F. A.
Smith, W. W.
TI Measurement of the low-energy Na+-Na total collision rate in an
ion-neutral hybrid trap
SO PHYSICAL REVIEW A
LA English
DT Article
ID PHOTOIONIZATION CROSS-SECTIONS; LINEAR PAUL TRAP; MAGNETOOPTICAL TRAP;
SODIUM ATOMS; ASSOCIATIVE IONIZATION; RADIATION PRESSURE;
MASS-SPECTROMETER; INJECTION; MOLECULES; CHEMISTRY
AB We present measurements of the total elastic and resonant charge-exchange ion-atom collision rate coefficient kia of cold sodium (Na) with optically dark low-energy Na+ ions in a hybrid ion-neutral trap. To determine kia, we measured the trap loading and loss rates from both a Na magneto-optical trap (MOT) and a linear radio-frequency quadrupole Paul trap. We found the total rate coefficient to be 7.4 +/- 1.9 x 10(-8) cm(3)/s for the type-I Na MOT immersed within an approximate to 140-K ion cloud and 1.10 +/- 0.25 x 10(-7) cm(3)/s for the type-II Na MOT within an approximate to 1070-K ion cloud. Our measurements show excellent agreement with previously reported theoretical fully quantal ab initio calculations. In the process of determining the total rate coefficient, we demonstrate that a MOT can be used to probe an optically dark ion cloud's spatial distribution within a hybrid trap.
C1 [Goodman, D. S.; Wells, J. E.; Kwolek, J. M.; Smith, W. W.] Univ Connecticut, Dept Phys, Storrs, CT 06269 USA.
[Bluemel, R.] Wesleyan Univ, Dept Phys, Middletown, CT 06459 USA.
[Narducci, F. A.] Naval Air Syst Command, EO Sensors Div, Patuxent River, MD 20670 USA.
RP Goodman, DS (reprint author), Univ Connecticut, Dept Phys, Storrs, CT 06269 USA.
FU NSF [PHY-1307874]
FX We would like to acknowledge support from the NSF under Grant No.
PHY-1307874. We thank J. Lin, O. Makarov, K. Basiaga, C. Talbot, and I.
Sivarajah for their preliminary work on the hybrid trap project. We
would also like to thank our University of Connecticut theoretical
collaborators R. Cote, H. Michels, and J. Montgomery.
NR 76
TC 9
Z9 9
U1 0
U2 9
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 2469-9926
EI 2469-9934
J9 PHYS REV A
JI Phys. Rev. A
PD JAN 20
PY 2015
VL 91
IS 1
AR 012709
DI 10.1103/PhysRevA.91.012709
PG 13
WC Optics; Physics, Atomic, Molecular & Chemical
SC Optics; Physics
GA AZ6JH
UT WOS:000348325700010
ER
PT J
AU Wu, TW
Huba, JD
Krall, J
Fritts, DC
Laughman, B
AF Wu, T. -W.
Huba, J. D.
Krall, J.
Fritts, D. C.
Laughman, B.
TI Seeding equatorial spread F with turbulent gravity waves: Phasing
effects
SO GEOPHYSICAL RESEARCH LETTERS
LA English
DT Article
DE ionosphere; equatorial spread F; gravity waves
ID LOW-LATITUDE IONOSPHERE; IRREGULARITIES; INSTABILITY
AB The Naval Research Laboratory (NRL) SAMI3/equatorial spread F (ESF) three-dimensional ionosphere model is used to study the initiation and development of the large-scale plasma bubbles in the postsunset equatorial F region by turbulent gravity waves. The gravity wave turbulence is obtained from a three-dimensional anelastic, finite-volume model. We show that the phasing of gravity waves at conjugate regions in the ionosphere can enhance (in phase) or reduce (out of phase) the effective seed of the instability. The nonlocalized nature of the effective seed may contribute to the observed day-to-day variability of ESF. Additionally, we find that the zonal and vertical wind perturbations associated with the gravity waves are most effective in seeding ESF bubbles; perturbations of the meridional wind are relatively ineffective.
C1 [Wu, T. -W.; Huba, J. D.; Krall, J.] Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
[Fritts, D. C.; Laughman, B.] GATS Inc, Boulder, CO USA.
RP Huba, JD (reprint author), Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
EM huba@nrl.navy.mil
FU NRL Base Funds; NASA LWS [NNH11AR731, NNH12CC04C]; ONR
[N0014-14-WX-20599, N0014-13-1-0488]
FX This research has been supported by NRL Base Funds, NASA LWS grant
NNH11AR731, and ONR grant N0014-14-WX-20599 (J.D.H., T.W.W., and J.K.),
and NASA LWS grant NNH12CC04C and ONR grant N0014-13-1-0488 (D.F. and
B.L.).
NR 19
TC 2
Z9 2
U1 1
U2 8
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 JAN 16
PY 2015
VL 42
IS 1
BP 15
EP 21
DI 10.1002/2014GL062348
PG 7
WC Geosciences, Multidisciplinary
SC Geology
GA CA6PE
UT WOS:000349036500003
ER
PT J
AU Roh, JH
Roy, D
Lee, WK
Gergely, AL
Puskas, JE
Roland, CM
AF Roh, J. H.
Roy, D.
Lee, W. K.
Gergely, A. L.
Puskas, J. E.
Roland, C. M.
TI Thermoplastic elastomers of alloocimene and isobutylene triblock
copolymers
SO POLYMER
LA English
DT Article
DE Thermoplastic elastomers; Triblock copolymers; Payne effect
ID CARBOCATIONIC COPOLYMERIZATION; THERMORHEOLOGICAL COMPLEXITY;
VISCOELASTIC PROPERTIES; BLOCK-COPOLYMERS; POLYISOBUTYLENE; POLYMERS;
CRYSTALLIZATION; MOTION; MELTS
AB A novel triblock copolymer, having a center block of high molecular weight polyisobutylene (PIB) and alloocimene (allo) end-blocks, was synthesized and the mechanical properties characterized. The phase-separated morphology consists of tethered PIB, with the glassy allo domains functioning as reinforcing filler. Thus, at ambient temperature the dynamic modulus is larger than that of PIB homopolymer by about 40%, and there is pronounced reinforcement from the glassy domains. The triblock polymer exhibits thermoplastic elastomer behavior, consistent with the structure. For temperatures above the allo glass transition (71 degrees C), the material undergoes an order disorder transition, which causes substantial softening; however, this lability of the mechanical response is largely reversible. Since the repeat units of polyisobutylene cannot be crosslinked, this new material offers a route to processible, PIB based networks. Published by Elsevier Ltd.
C1 [Roh, J. H.; Roy, D.; Lee, W. K.; Roland, C. M.] US Navy, Res Lab, Div Chem, Washington, DC 20375 USA.
[Gergely, A. L.; Puskas, J. E.] Univ Akron, Dept Chem & Biomol Eng, Akron, OH 44325 USA.
RP Roland, CM (reprint author), US Navy, Res Lab, Div Chem, Washington, DC 20375 USA.
EM roland@nrl.navy.mil
FU Office of Naval Research; National Science Foundation under UCRC (Center
for Tire Research) [IIP-1160982]; National Research Council postdoctoral
fellowships
FX The work at NRL was supported by the Office of Naval Research. The
material was developed with support from the National Science Foundation
under UCRC IIP-1160982 (Center for Tire Research). J.H. Roh and D. Roy
acknowledge National Research Council postdoctoral fellowships.
NR 36
TC 4
Z9 4
U1 2
U2 23
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0032-3861
EI 1873-2291
J9 POLYMER
JI Polymer
PD JAN 15
PY 2015
VL 56
SI SI
BP 280
EP 283
DI 10.1016/j.polymer.2014.11.015
PG 4
WC Polymer Science
SC Polymer Science
GA AZ9SM
UT WOS:000348555500035
ER
PT J
AU Helmis, CG
Sgouros, G
Wang, Q
AF Helmis, C. G.
Sgouros, G.
Wang, Q.
TI On the vertical structure and spectral characteristics of the marine
Low-Level Jet
SO ATMOSPHERIC RESEARCH
LA English
DT Article; Proceedings Paper
CT 11th Conference of Meteorology, Climatology and Atmospheric Physics
CY MAY 30-JUN 01, 2012
CL Athens, GREECE
DE CBLAST-Low; Hilbert-Huang Transform; Inertial oscillation; Low-level
jet; Meso-scale motions; Sodar
ID ATMOSPHERIC BOUNDARY-LAYER; INERTIAL OSCILLATIONS; CALIFORNIA COAST;
SEA-BREEZE; TURBULENCE; WIND; DYNAMICS; ESCOMPTE; ISLAND
AB The aim of this work is the study of the vertical structure and the spectral characteristics of the marine Low Level Jets (LLJs) which are associated with frontal events. The analyzed data are based on remote sensing (sodar) and in-situ instrumentation measurements, performed during summer 2003, in the frame of the Coupled Boundary Layers Air-Sea Transfer Experiment in Low Winds (CBLAST-Low), at Nantucket Island, MA, U.S.A. The study of the vertical structure of the lower marine Atmospheric Boundary Layer (MABL), during a ten day period, has shown that the first 100 to 200 m, is characterized by strongly stable atmospheric conditions which are modified to slightly stable or almost neutral at higher levels. The frequent development of LLJs was also observed and was associated with frontal events, depending on the meteorological conditions. In order to understand the influence of the different physical processes and to study the vertical distribution of the wind intensity variations at the various time scales of interest, the Hilbert-Huang Transform (HHT) algorithm was applied to the time series of the wind data from the sodar, at different levels. Results are presented and discussed for certain LLJ cases, where the observed LLJs were persistent for several hours or days while the analysis of the wind speed data showed high amplitude variations corresponding to contributions not only from inertial but also from diurnal and meso-scale motions. (C) 2013 Published by Elsevier B.V.
C1 [Helmis, C. G.; Sgouros, G.] Univ Athens, Fac Phys, Dept Environm Phys & Meteorol, Athens 15784, Greece.
[Wang, Q.] Naval Postgrad Sch, Dept Meteorol, Monterey, CA USA.
RP Helmis, CG (reprint author), Univ Athens, Dept Environm Phys & Meteorol, Univ Campus,Bldg Phys 5, Athens 15784, Greece.
EM chelmis@phys.uoa.gr; geosg@phys.uoa.gr; qwang@nps.edu
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.
NR 33
TC 1
Z9 1
U1 0
U2 21
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 0169-8095
EI 1873-2895
J9 ATMOS RES
JI Atmos. Res.
PD JAN 15
PY 2015
VL 152
SI SI
BP 74
EP 81
DI 10.1016/j.atmosres.2013.11.005
PG 8
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA AS3UJ
UT WOS:000344203200008
ER
PT J
AU Auyeung, RCY
Kim, H
Mathews, S
Pique, A
AF Auyeung, Raymond C. Y.
Kim, Heungsoo
Mathews, Scott
Pique, Alberto
TI Laser forward transfer using structured light
SO OPTICS EXPRESS
LA English
DT Article
ID RESOLUTION
AB A digital micromirror device (DMD) is used to spatially structure a 532 nm laser beam to print features spatially congruent to the laser spot in a laser-induced forward transfer (LIFT) process known as laser decal transfer (LDT). The DMD is a binary (on/off) spatial light modulator and its resolution, half-toning and beam shaping properties are studied using LDT of silver nanopaste layers. Edge-enhanced "checkerboard" beam profiles led to a similar to 30% decrease in the laser transfer fluence threshold (compared to a reference "checkerboard" profile) for a 20-pixel bitmap pattern and its resulting 10-mu m square feature. (C) 2015 Optical Society of America
C1 [Auyeung, Raymond C. Y.; Kim, Heungsoo; Mathews, Scott; Pique, Alberto] Naval Res Lab, Div Mat Sci & Technol, Washington, DC 20375 USA.
RP Auyeung, RCY (reprint author), Naval Res Lab, Div Mat Sci & Technol, Code 6364, Washington, DC 20375 USA.
EM raymond.auyeung@nrl.navy.mil
FU Office of Naval Research through the Naval Research Laboratory Basic
Research Program
FX This work was funded by the Office of Naval Research through the Naval
Research Laboratory Basic Research Program.
NR 16
TC 7
Z9 7
U1 1
U2 25
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 JAN 12
PY 2015
VL 23
IS 1
BP 422
EP 430
DI 10.1364/OE.23.000422
PG 9
WC Optics
SC Optics
GA CA8IT
UT WOS:000349162900040
PM 25835687
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, EC
Averichev, GS
Banerjee, A
Beavis, DR
Bellwied, R
Bhasin, A
Bhati, AK
Bhattarai, P
Bichsel, H
Bielcik, J
Bielcikova, J
Bland, LC
Bordyuzhin, IG
Borowski, W
Bouchet, J
Brandin, AV
Brovko, SG
Bultmann, S
Bunzarov, I
Burton, TP
Butterworth, J
Caines, H
Sanchez, MCDLB
Campbell, JM
Cebra, D
Cendejas, R
Cervantes, MC
Chaloupka, P
Chang, Z
Chattopadhyay, S
Chen, HF
Chen, JH
Chen, L
Cheng, J
Cherney, M
Chikanian, A
Christie, W
Chwastowski, J
Codrington, MJM
Contin, G
Cramer, JG
Crawford, HJ
Cui, X
Das, S
Leyva, AD
De Silva, LC
Debbe, RR
Dedovich, TG
Deng, J
Derevschikov, AA
de Souza, RD
di Ruzza, B
Didenko, L
Dilks, C
Ding, F
Djawotho, P
Dong, X
Drachenberg, JL
Draper, JE
Du, CM
Dunkelberger, LE
Dunlop, JC
Efimov, LG
Engelage, J
Engle, KS
Eppley, G
Eun, L
Evdokimov, O
Eyser, O
Fatemi, R
Fazio, S
Fedorisin, J
Filip, P
Fisyak, Y
Flores, CE
Gagliardi, CA
Gangadharan, DR
Garand, D
Geurts, F
Gibson, A
Girard, M
Gliske, S
Greiner, L
Grosnick, D
Gunarathne, DS
Guo, Y
Gupta, A
Gupta, S
Guryn, W
Haag, B
Hamed, A
Han, LX
Haque, R
Harris, JW
Heppelmann, S
Hirsch, A
Hoffmann, GW
Hofman, DJ
Horvat, S
Huang, B
Huang, HZ
Huang, X
Huck, P
Humanic, TJ
Igo, G
Jacobs, WW
Jang, H
Judd, EG
Kabana, S
Kalinkin, D
Kang, K
Kauder, K
Ke, HW
Keane, D
Kechechyan, A
Kesich, A
Khan, ZH
Kikola, DP
Kisel, I
Kisiel, A
Koetke, DD
Kollegger, T
Konzer, J
Koralt, I
Kosarzewski, LK
Kotchenda, L
Kraishan, AF
Kravtsov, P
Krueger, K
Kulakov, I
Kumar, L
Kycia, RA
Lamont, MAC
Landgraf, JM
Landry, KD
Lauret, J
Lebedev, A
Lednicky, R
Lee, JH
Li, C
Li, W
Li, X
Li, X
Li, Y
Li, ZM
Lisa, MA
Liu, F
Ljubicic, T
Llope, WJ
Lomnitz, M
Longacre, RS
Luo, X
Ma, GL
Ma, YG
Mahapatra, DP
Majka, R
Margetis, S
Markert, C
Masui, H
Matis, HS
McDonald, D
McShane, TS
Minaev, NG
Mioduszewski, S
Mohanty, B
Mondal, MM
Morozov, DA
Mustafa, MK
Nandi, BK
Nasim, M
Nayak, TK
Nelson, JM
Nigmatkulov, G
Nogach, LV
Noh, SY
Novak, J
Nurushev, SB
Odyniec, G
Ogawa, A
Oh, K
Ohlson, A
Okorokov, V
Oldag, EW
Olvitt, DL
Page, BS
Pan, YX
Pandit, Y
Panebratsev, Y
Pawlak, T
Pawlik, B
Pei, H
Perkins, C
Pile, P
Planinic, M
Pluta, J
Poljak, N
Poniatowska, K
Porter, J
Poskanzer, AM
Pruthi, NK
Przybycien, M
Putschke, J
Qiu, H
Quintero, A
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
Rusnakova, O
Sahoo, NR
Sahu, PK
Sakrejda, I
Salur, S
Sandweiss, J
Sangaline, E
Sarkar, A
Schambach, J
Scharenberg, RP
Schmah, AM
Schmidke, WB
Schmitz, N
Seger, J
Seyboth, P
Shah, N
Shahaliev, E
Shanmuganathan, PV
Shao, M
Sharma, B
Shen, WQ
Shi, SS
Shou, QY
Sichtermann, EP
Simko, M
Skoby, MJ
Smirnov, D
Smirnov, N
Solanki, D
Sorensen, P
Spinka, HM
Srivastava, B
Stanislaus, TDS
Stevens, JR
Stock, R
Strikhanov, M
Stringfellow, B
Sumbera, M
Sun, X
Sun, XM
Sun, Y
Sun, Z
Surrow, B
Svirida, DN
Symons, TJM
Szelezniak, MA
Takahashi, J
Tang, AH
Tang, Z
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
Vandenbroucke, M
Vanfossen, JA
Varma, R
Vasconcelos, GMS
Vasiliev, AN
Vertesi, R
Videbaek, F
Viyogi, YP
Vokal, S
Vossen, A
Wada, M
Wang, F
Wang, G
Wang, H
Wang, JS
Wang, XL
Wang, Y
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, J
Xu, N
Xu, QH
Xu, Y
Xu, Z
Yan, W
Yang, C
Yang, Y
Yang, Y
Ye, Z
Yepes, P
Yi, L
Yip, K
Yoo, IK
Yu, N
Zbroszczyk, H
Zha, W
Zhang, JB
Zhang, JL
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. C.
Averichev, G. S.
Banerjee, A.
Beavis, D. R.
Bellwied, 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.
Bueltmann, S.
Bunzarov, I.
Burton, T. P.
Butterworth, J.
Caines, H.
Sanchez, M. Calderon de la Barca
Campbell, J. M.
Cebra, D.
Cendejas, R.
Cervantes, M. C.
Chaloupka, P.
Chang, Z.
Chattopadhyay, S.
Chen, H. F.
Chen, J. H.
Chen, L.
Cheng, J.
Cherney, M.
Chikanian, A.
Christie, W.
Chwastowski, J.
Codrington, M. J. M.
Contin, G.
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.
Derevschikov, A. A.
Derradi de Souza, R.
di Ruzza, B.
Didenko, L.
Dilks, C.
Ding, F.
Djawotho, P.
Dong, X.
Drachenberg, J. L.
Draper, J. E.
Du, C. M.
Dunkelberger, L. E.
Dunlop, J. C.
Efimov, L. G.
Engelage, J.
Engle, K. S.
Eppley, G.
Eun, L.
Evdokimov, O.
Eyser, O.
Fatemi, R.
Fazio, S.
Fedorisin, J.
Filip, P.
Fisyak, Y.
Flores, C. E.
Gagliardi, C. A.
Gangadharan, D. R.
Garand, D.
Geurts, F.
Gibson, A.
Girard, M.
Gliske, S.
Greiner, L.
Grosnick, D.
Gunarathne, D. S.
Guo, Y.
Gupta, A.
Gupta, S.
Guryn, W.
Haag, B.
Hamed, A.
Han, L. -X.
Haque, R.
Harris, J. W.
Heppelmann, S.
Hirsch, A.
Hoffmann, G. W.
Hofman, D. J.
Horvat, S.
Huang, B.
Huang, H. Z.
Huang, X.
Huck, P.
Humanic, T. J.
Igo, G.
Jacobs, W. W.
Jang, H.
Judd, E. G.
Kabana, S.
Kalinkin, D.
Kang, K.
Kauder, K.
Ke, H. W.
Keane, D.
Kechechyan, A.
Kesich, A.
Khan, Z. H.
Kikola, D. P.
Kisel, I.
Kisiel, A.
Koetke, D. D.
Kollegger, T.
Konzer, J.
Koralt, I.
Kosarzewski, L. K.
Kotchenda, L.
Kraishan, A. F.
Kravtsov, P.
Krueger, K.
Kulakov, I.
Kumar, L.
Kycia, R. A.
Lamont, M. A. C.
Landgraf, J. M.
Landry, K. D.
Lauret, J.
Lebedev, A.
Lednicky, R.
Lee, J. H.
Li, C.
Li, W.
Li, X.
Li, X.
Li, Y.
Li, Z. M.
Lisa, M. A.
Liu, F.
Ljubicic, T.
Llope, W. J.
Lomnitz, M.
Longacre, R. S.
Luo, X.
Ma, G. L.
Ma, Y. G.
Mahapatra, D. P.
Majka, R.
Margetis, S.
Markert, C.
Masui, H.
Matis, H. S.
McDonald, D.
McShane, T. S.
Minaev, N. G.
Mioduszewski, S.
Mohanty, B.
Mondal, M. M.
Morozov, D. A.
Mustafa, M. K.
Nandi, B. K.
Nasim, Md.
Nayak, T. K.
Nelson, J. M.
Nigmatkulov, G.
Nogach, L. V.
Noh, S. Y.
Novak, J.
Nurushev, S. B.
Odyniec, G.
Ogawa, A.
Oh, K.
Ohlson, A.
Okorokov, V.
Oldag, E. W.
Olvitt, D. L., Jr.
Page, B. S.
Pan, Y. X.
Pandit, Y.
Panebratsev, Y.
Pawlak, T.
Pawlik, B.
Pei, H.
Perkins, C.
Pile, P.
Planinic, M.
Pluta, J.
Poljak, N.
Poniatowska, K.
Porter, J.
Poskanzer, A. M.
Pruthi, N. K.
Przybycien, M.
Putschke, J.
Qiu, H.
Quintero, A.
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.
Rusnakova, O.
Sahoo, N. R.
Sahu, P. K.
Sakrejda, I.
Salur, S.
Sandweiss, J.
Sangaline, E.
Sarkar, A.
Schambach, J.
Scharenberg, R. P.
Schmah, A. M.
Schmidke, W. B.
Schmitz, N.
Seger, J.
Seyboth, P.
Shah, N.
Shahaliev, E.
Shanmuganathan, P. V.
Shao, M.
Sharma, B.
Shen, W. Q.
Shi, S. S.
Shou, Q. Y.
Sichtermann, E. P.
Simko, M.
Skoby, M. J.
Smirnov, D.
Smirnov, N.
Solanki, D.
Sorensen, P.
Spinka, H. M.
Srivastava, B.
Stanislaus, T. D. S.
Stevens, J. R.
Stock, R.
Strikhanov, M.
Stringfellow, B.
Sumbera, M.
Sun, X.
Sun, X. M.
Sun, Y.
Sun, Z.
Surrow, B.
Svirida, D. N.
Symons, T. J. M.
Szelezniak, M. A.
Takahashi, J.
Tang, A. H.
Tang, Z.
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.
Vandenbroucke, M.
Vanfossen, J. A., Jr.
Varma, R.
Vasconcelos, G. M. S.
Vasiliev, A. N.
Vertesi, R.
Videbaek, F.
Viyogi, Y. P.
Vokal, S.
Vossen, A.
Wada, M.
Wang, F.
Wang, G.
Wang, H.
Wang, J. S.
Wang, X. L.
Wang, Y.
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, J.
Xu, N.
Xu, Q. H.
Xu, Y.
Xu, Z.
Yan, W.
Yang, C.
Yang, Y.
Yang, Y.
Ye, Z.
Yepes, P.
Yi, L.
Yip, K.
Yoo, I. -K.
Yu, N.
Zbroszczyk, H.
Zha, W.
Zhang, J. B.
Zhang, J. L.
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 Lambda Lambda Correlation Function in Au plus Au Collisions at root
s(NN)=200 GeV
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID HEAVY-ION COLLISIONS; HYPERNUCLEI; FEMTOSCOPY; PARTICLES; DIHYPERON;
DIBARYON; SEARCH; STARS
AB We present Lambda Lambda correlation measurements in heavy-ion collisions for Au + Au collisions at root s(NN) = 200 GeV using the STAR experiment at the Relativistic Heavy-Ion Collider. The Lednicky-Lyuboshitz analytical model has been used to fit the data to obtain a source size, a scattering length and an effective range. Implications of the measurement of the Lambda Lambda correlation function and interaction parameters for dihyperon searches are discussed.
C1 [Adamczyk, L.; Przybycien, M.] AGH Univ Sci & Technol, PL-30059 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. C.; Beavis, D. R.; Bland, L. C.; Burton, T. P.; Christie, W.; Debbe, R. R.; di Ruzza, B.; Didenko, L.; Dunlop, J. C.; Eyser, O.; Fazio, S.; Fisyak, Y.; Guryn, W.; Huang, B.; Ke, H. W.; Lamont, M. A. C.; Lauret, J.; Lebedev, A.; Lee, J. H.; Ljubicic, T.; Longacre, R. S.; Ogawa, A.; Pile, P.; Ruan, L.; Schmidke, W. B.; Smirnov, D.; Sorensen, P.; Tang, A. H.; Ullrich, T.; Van Buren, G.; Videbaek, F.; Wang, H.; Webb, J. C.; Xu, Z.; Yip, K.] Brookhaven Natl Lab, Upton, NY 11973 USA.
[Crawford, H. J.; Engelage, J.; Judd, E. G.; Perkins, C.] Univ Calif Berkeley, Berkeley, CA 94720 USA.
[Brovko, S. G.; Sanchez, M. Calderon de la Barca; Cebra, D.; Ding, F.; Draper, J. E.; Flores, C. 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.; 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, L.; Huck, P.; Li, Z. M.; Liu, F.; Luo, X.; Pei, H.; Wu, Y. F.; Xu, J.; Yang, Y.; Yu, N.; Zhang, J. B.; Zhao, J.] Cent China Normal Univ HZNU, Wuhan 430079, Peoples R China.
[Evdokimov, O.; Hofman, D. J.; Kauder, K.; Khan, Z. H.; Pandit, Y.; Wang, Y.; Ye, Z.] Univ Illinois, Chicago, IL 60607 USA.
[Chwastowski, J.; Kycia, R. A.] Cracow Univ Technol, PL-30084 Krakow, Poland.
[Cherney, M.; De Silva, L. C.; McShane, T. S.; Ross, J. F.; Seger, J.] Creighton Univ, Omaha, NE 68178 USA.
[Bielcik, J.; Chaloupka, P.; Rusnakova, O.; Simko, M.; Trzeciak, B. A.] Czech Tech Univ, FNSPE, Prague 11519, Czech Republic.
[Bielcikova, J.; Rusnak, J.; Sumbera, M.; Tlusty, D.; Vertesi, R.] Nucl Phys Inst AS CR, Rez 25068, Czech Republic.
[Kisel, I.; Kollegger, T.; Kulakov, I.; Stock, R.; Zyzak, M.] Frankfurt Inst Adv Studies FIAS, Frankfurt, Germany.
[Cui, X.; Das, S.; Mahapatra, D. P.; Sahu, P. K.] Inst Phys, Bhubaneswar 751005, Orissa, India.
[Nandi, B. K.; Sarkar, A.; Varma, R.] Indian Inst Technol, Bombay 400076, Maharashtra, India.
[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.; Kalinkin, D.; 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.; Lomnitz, M.; Margetis, S.; Quintero, A.; Shanmuganathan, P. V.; Vanfossen, J. A., Jr.] Kent State Univ, Kent, OH 44242 USA.
[Adkins, J. K.; Fatemi, R.; Ramachandran, S.] Univ Kentucky, Lexington, KY 40506 USA.
[Jang, H.; Noh, S. Y.] Korea Inst Sci & Technol Informat, Taejon, South Korea.
[Du, C. M.; Sun, Z.; Wang, J. S.; Yang, Y.] Inst Modern Phys, Lanzhou, Peoples R China.
[Contin, G.; Dong, X.; Eun, L.; Greiner, L.; Masui, H.; Matis, H. S.; Mustafa, M. K.; Odyniec, G.; Porter, J.; Poskanzer, A. M.; Qiu, H.; Ritter, H. G.; Sakrejda, I.; Salur, S.; Schmah, A. M.; Shi, S. S.; Sichtermann, E. P.; Sun, X.; Sun, X. M.; Symons, T. J. M.; Szelezniak, M. A.; Thomas, J. H.; Wieman, H.; Xu, N.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[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.; Nigmatkulov, G.; Okorokov, V.; Strikhanov, M.] Moscow Engn Phys Inst, Moscow 115409, Russia.
[Haque, R.; Kumar, L.; Mohanty, B.; Nasim, Md.] Natl Inst Sci Educ & Res, Bhubaneswar 751005, Orissa, India.
[Anson, C. D.; Campbell, J. M.; 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.; Dilks, C.; Heppelmann, S.] Penn State Univ, University Pk, PA 16802 USA.
[Derevschikov, A. A.; Minaev, N. G.; Morozov, D. A.; Nogach, L. V.; Nurushev, S. B.; Vasiliev, A. N.] Inst High Energy Phys, Protvino, Russia.
[Garand, D.; Hirsch, A.; Konzer, J.; Li, X.; Scharenberg, R. P.; Wang, F.; 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.; Roberts, J. B.; Xin, K.; Yepes, P.] Rice Univ, Houston, TX 77251 USA.
[Chen, H. F.; Guo, Y.; Li, C.; Shao, M.; Sun, Y.; Tang, Z.; Wang, X. L.; Xu, Y.; Yang, C.; Zha, W.; Zhang, Y.; Zhang, Z. P.] Univ Sci & Technol China, Hefei 230026, Peoples R China.
[Deng, J.; Xu, Q. H.; Zhang, J. L.] 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.; Zhong, C.; Zhu, Y. H.] Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China.
[Borowski, W.; Kabana, S.] SUBATECH, Nantes, France.
[Gunarathne, D. S.; Kraishan, A. F.; Li, X.; Olvitt, D. L., Jr.; Surrow, B.; Vandenbroucke, M.] Temple Univ, Philadelphia, PA 19122 USA.
[Cervantes, M. C.; Chang, Z.; Djawotho, P.; Gagliardi, C. A.; Hamed, A.; Mioduszewski, S.; Mondal, M. M.; Sahoo, N. R.; 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.; McDonald, D.; Timmins, A. R.] Univ Houston, Houston, TX 77204 USA.
[Cheng, J.; Huang, X.; Kang, K.; Li, Y.; Wang, Y.; Xiao, Z.; Yan, W.; Zhang, X. P.; Zhu, X.] Tsinghua Univ, Beijing 100084, Peoples R China.
[Engle, K. S.; 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.; Nayak, T. K.; Roy, A.; Tribedy, P.; Viyogi, Y. P.] Ctr Variable Energy Cyclotron, Kolkata 700064, India.
[Girard, M.; Kikola, D. P.; Kisiel, A.; Kosarzewski, L. K.; Pawlak, T.; Pluta, J.; Poniatowska, K.; Zbroszczyk, H.] Warsaw Univ Technol, Warsaw, Poland.
[Bichsel, H.; Cramer, J. G.] Univ Washington, Seattle, WA 98195 USA.
[Putschke, J.] Wayne State Univ, Detroit, MI 48201 USA.
[Caines, H.; Chikanian, A.; 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, PL-30059 Krakow, Poland.
RI Alekseev, Igor/J-8070-2014; Svirida, Dmitry/R-4909-2016; Inst. of
Physics, Gleb Wataghin/A-9780-2017; Okorokov, Vitaly/C-4800-2017; Ma,
Yu-Gang/M-8122-2013; Gunarathne, Devika/C-4903-2017; XIAO,
Zhigang/C-3788-2015; Huang, Bingchu/H-6343-2015; Fazio, Salvatore
/G-5156-2010; Kumar, Lokesh/A-6154-2010; Derradi de Souza,
Rafael/M-4791-2013; Rusnak, Jan/G-8462-2014; Xin, Kefeng/O-9195-2016;
Yi, Li/Q-1705-2016; Sumbera, Michal/O-7497-2014; Kycia,
Radoslaw/J-4397-2015; Bielcikova, Jana/G-9342-2014; Chaloupka,
Petr/E-5965-2012; Takahashi, Jun/B-2946-2012
OI Alekseev, Igor/0000-0003-3358-9635; Okorokov,
Vitaly/0000-0002-7162-5345; Ma, Yu-Gang/0000-0002-0233-9900; Gunarathne,
Devika/0000-0002-7155-7418; Huang, Bingchu/0000-0002-3253-3210; Kumar,
Lokesh/0000-0002-2746-9840; Derradi de Souza,
Rafael/0000-0002-2084-7001; Xin, Kefeng/0000-0003-4853-9219; Yi,
Li/0000-0002-7512-2657; Sumbera, Michal/0000-0002-0639-7323; Kycia,
Radoslaw/0000-0002-6390-4627; Takahashi, Jun/0000-0002-4091-1779
FU RHIC Operations Group; RCF at BNL; NERSC Center at LBNL; KISTI Center in
Korea; Open Science Grid consortium; Offices of NP and HEP within the
U.S. DOE Office of Science; U.S. NSF; CNRS/IN2P3; FAPESP CNPq of Brazil;
Ministry of Education and Science of the Russian Federation; NNSFC; CAS;
MoST; MoE of China; Korean Research Foundation; GA and MSMT of the Czech
Republic; FIAS of Germany; DAE; DST; CSIR of India; National Science
Centre of Poland; National Research Foundation [NRF-2012004024];
Ministry of Science, Education and Sports of the Republic of Croatia;
RosAtom of Russia
FX We thank S. Pratt, A. Ohnishi, K. Morita, and T. Furumoto for helpful
discussions. We thank the RHIC Operations Group and RCF at BNL, the
NERSC Center at LBNL, the KISTI Center in Korea, 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, CNRS/IN2P3, FAPESP CNPq of Brazil, the
Ministry of Education and Science of the Russian Federation, NNSFC, CAS,
MoST, and MoE of China, the Korean Research Foundation, GA and MSMT of
the Czech Republic, FIAS of Germany, DAE, DST, and CSIR of India, the
National Science Centre of Poland, National Research Foundation
(NRF-2012004024), the Ministry of Science, Education and Sports of the
Republic of Croatia, and RosAtom of Russia.
NR 40
TC 22
Z9 22
U1 3
U2 53
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 JAN 12
PY 2015
VL 114
IS 2
AR 022301
DI 10.1103/PhysRevLett.114.022301
PG 7
WC Physics, Multidisciplinary
SC Physics
GA CA2JU
UT WOS:000348735500002
PM 25635541
ER
PT J
AU Hu, ZQ
Nan, TX
Wang, XJ
Staruch, M
Gao, Y
Finkel, P
Sun, NX
AF Hu, Zhongqiang
Nan, Tianxiang
Wang, Xinjun
Staruch, Margo
Gao, Yuan
Finkel, Peter
Sun, Nian X.
TI Voltage control of magnetism in FeGaB/PIN-PMN-PT multiferroic
heterostructures for high-power and high-temperature applications
SO APPLIED PHYSICS LETTERS
LA English
DT Article
ID FIELD
AB We report strong voltage tuning of magnetism in FeGaB deposited on [011]-poled Pb(In1/2Nb1/2)O-3-Pb(Mg1/3Nb2/3)O-3-PbTiO3 (PIN-PMN-PT) ternary single crystals to achieve more than 2 times broader operational range and increased thermal stability as compared to heterostructures based on binary relaxors. Voltage-induced effective ferromagnetic resonance field shift of 180 Oe for electric field from -6.7 kV/cm to 11 kV/cm was observed in FeGaB/PIN-PMN-PT heterostructures. This strong magnetoelectric coupling combined with excellent electric and temperature stability makes FeGaB/PIN-PMN-PT heterostructures potential candidates for high-power tunable radio frequency/microwave magnetic device applications. (C) 2015 AIP Publishing LLC.
C1 [Hu, Zhongqiang; Nan, Tianxiang; Wang, Xinjun; Gao, Yuan; Sun, Nian X.] Northeastern Univ, Dept Elect & Comp Engn, Boston, MA 02115 USA.
[Staruch, Margo; Finkel, Peter] US Naval Res Lab, Washington, DC 20375 USA.
RP Sun, NX (reprint author), Northeastern Univ, Dept Elect & Comp Engn, Boston, MA 02115 USA.
EM n.sun@neu.edu
RI Staruch, Margo/M-9260-2015; Nan, Tianxiang/O-3820-2015; Nan,
Tianxiang/A-8020-2016; Gao, Yuan/E-4277-2016; Hu,
Zhongqiang/I-2528-2012; Sun, Nian Xiang/F-9590-2010
OI Staruch, Margo/0000-0003-3088-2553; Gao, Yuan/0000-0002-2444-1180; Hu,
Zhongqiang/0000-0002-7534-0427; Sun, Nian Xiang/0000-0002-3120-0094
FU AFRL [FA8650-14-C-5705]; Winchester Technologies, LLC; National Natural
Science Foundation of China (NSFC) [51328203]; Office of Naval Research
(ONR) through the Naval Research Laboratory's Basic Research Program;
National Research Council under the Research Associateship Program
FX The work was supported by AFRL through FA8650-14-C-5705, Winchester
Technologies, LLC, and National Natural Science Foundation of China
(NSFC) 51328203. Funding for author P.F. was provided by the Office of
Naval Research (ONR) through the Naval Research Laboratory's Basic
Research Program. M.S. was supported in part by the National Research
Council under the Research Associateship Program.
NR 30
TC 16
Z9 17
U1 3
U2 67
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 JAN 12
PY 2015
VL 106
IS 2
AR 022901
DI 10.1063/1.4905855
PG 4
WC Physics, Applied
SC Physics
GA AZ2HJ
UT WOS:000348054700062
ER
PT J
AU Lupke, F
Manni, S
Erwin, SC
Mazin, II
Gegenwart, P
Wenderoth, M
AF Luepke, F.
Manni, S.
Erwin, S. C.
Mazin, I. I.
Gegenwart, P.
Wenderoth, M.
TI Highly unconventional surface reconstruction of Na2IrO3 with persistent
energy gap
SO PHYSICAL REVIEW B
LA English
DT Article
ID TUNNELING SPECTROSCOPY
AB Na2IrO3 is an intriguing material for which spin-orbit coupling plays a key role. Theoretical predictions have been made that the surface of Na2IrO3 should exhibit a clear signature of the quantum spin Hall effect. We studied the surface of Na2IrO3 using scanning tunneling microscopy and density-functional theory calculations. We observed atomic level resolution of the surface and two types of terminations with different surface periodicity and Na content. By comparing bias-dependent experimental topographic images to simulated images, we determined the detailed atomistic structure of both observed surfaces. One of these reveals a strong relaxation to the surface of Na atoms from the subsurface region two atomic layers below. Such dramatic structural changes well below the surface are highly unusual and cast doubt on any prediction of surface properties based on bulk electronic structure. Indeed, using spatially resolved tunneling spectroscopy, we found no indication of the predicted quantum spin Hall behavior.
C1 [Luepke, F.; Wenderoth, M.] Univ Gottingen, Inst Phys 4, D-37077 Gottingen, Germany.
[Luepke, F.] Forschungszentrum Julich, PGI 3, D-52425 Julich, Germany.
[Manni, S.] Univ Gottingen, Inst Phys 1, D-37077 Gottingen, Germany.
[Manni, S.; Gegenwart, P.] Univ Augsburg, Ctr Elect Correlat & Magnetism, D-86159 Augsburg, Germany.
[Erwin, S. C.; Mazin, I. I.] Naval Res Lab, Ctr Computat Mat Sci, Washington, DC 20375 USA.
RP Wenderoth, M (reprint author), Univ Gottingen, Inst Phys 4, D-37077 Gottingen, Germany.
EM mwender@gwdg.de
RI Manni, Soham/G-1455-2016; Wenderoth, Martin/Q-3966-2016; Gegenwart,
Philipp/A-7291-2017
OI Manni, Soham/0000-0001-6279-3497;
FU DFG [1666]; Helmholtz Virtual Institute [521]; U.S. Office of Naval
Research through the Naval Research Laboratory's Basic Research Program
FX This work was supported by the DFG priority program 1666 and the
Helmholtz Virtual Institute 521, and in part by the U.S. Office of Naval
Research through the Naval Research Laboratory's Basic Research Program.
NR 15
TC 3
Z9 3
U1 5
U2 21
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 JAN 12
PY 2015
VL 91
IS 4
AR 041405
DI 10.1103/PhysRevB.91.041405
PG 4
WC Physics, Condensed Matter
SC Physics
GA CA2UB
UT WOS:000348762200004
ER
PT J
AU Fukazawa, Y
Finke, J
Stawarz, L
Tanaka, Y
Itoh, R
Tokuda, S
AF Fukazawa, Yasushi
Finke, Justin
Stawarz, Lukasz
Tanaka, Yasuyuki
Itoh, Ryosuke
Tokuda, Shin'ya
TI SUZAKU OBSERVATIONS OF gamma-RAY BRIGHT RADIO GALAXIES: ORIGIN OF THE
X-RAY EMISSION AND BROADBAND MODELING
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE galaxies: jets; gamma rays: galaxies; X-rays: galaxies
ID LARGE-AREA TELESCOPE; ACTIVE GALACTIC NUCLEI; BL-LACERTAE OBJECTS;
XMM-NEWTON VIEW; DISK-JET CONNECTION; BLACK-HOLE MASSES; NGC 1275; FR-I;
ELLIPTIC GALAXIES; BEPPOSAX OBSERVATIONS
AB We performed a systematic X-ray study of eight nearby gamma-ray bright radio galaxies with Suzaku in order to understand the origins of their X-ray emissions. The Suzaku spectra for five of those have been presented previously, while the remaining three (M87, PKS 0625-354, and 3C 78) are presented here for the first time. Based on the Fe-K line strength, X-ray variability, and X-ray power-law photon indices, and using additional information on the [O (III)] line emission, we argue for a jet origin of the observed X-ray emission in these three sources. We also analyzed five years of Fermi Large Area Telescope (LAT) GeV gamma-ray data on PKS 0625-354 and 3C 78 to understand these sources within the blazar paradigm. We found significant gamma-ray variability in the former object. Overall, we note that the Suzaku spectra for both PKS 0625-354 and 3C 78 are rather soft, while the LAT spectra are unusually hard when compared with other gamma-ray detected low-power (FR I) radio galaxies. We demonstrate that the constructed broadband spectral energy distributions of PKS 0625-354 and 3C 78 are well described by a one-zone synchrotron/synchrotron self-Compton model. The results of the modeling indicate lower bulk Lorentz factors compared to those typically found in other BL Lacertae (BL Lac) objects, but consistent with the values inferred from modeling other LAT-detected FR I radio galaxies. Interestingly, the modeling also implies very high peak (similar to 10(16) Hz) synchrotron frequencies in the two analyzed sources, contrary to previously suggested scenarios for Fanaroff-Riley (FR) type I/BL Lac unification. We discuss the implications of our findings in the context of the FR I/BL Lac unification schemes.
C1 [Fukazawa, Yasushi; Itoh, Ryosuke; Tokuda, Shin'ya] Hiroshima Univ, Dept Phys Sci, Hiroshima 7398526, Japan.
[Fukazawa, Yasushi; Tanaka, Yasuyuki] Hiroshima Univ, Hiroshima Astrophys Sci Ctr, Hiroshima 7398526, Japan.
[Finke, Justin] US Naval Res Lab, Washington, DC 20375 USA.
[Stawarz, Lukasz] JAXA, Inst Space & Astronaut Sci, Chuo Ku, Sagamihara, Kanagawa 2525210, Japan.
[Stawarz, Lukasz] Jagiellonian Univ, Astron Observ, PL-30244 Krakow, Poland.
RP Fukazawa, Y (reprint author), Hiroshima Univ, Dept Phys Sci, 1-3-1 Kagamiyama, Hiroshima 7398526, Japan.
EM fukazawa@hep01.hepl.hiroshima-u.ac.jp
RI XRAY, SUZAKU/A-1808-2009
FU JSPS KAKENHI [2400000401, 2424401400]; Polish NSC
[DEC-2012/04/A/ST9/00083]; National Aeronautics and Space
Administration; Department of Energy in the United States; Commissariat
a l'Energie Atomique; Centre National de la Recherche
Scientifique/Institut National de Physique Nucleaire et de Physique des
Particules in France; Agenzia Spaziale Italiana; Istituto Nazionale di
Fisica Nucleare in Italy; Ministry of Education, Culture, Sports,
Science and Technology (MEXT); High Energy Accelerator Research
Organization (KEK); Japan Aerospace Exploration Agency (JAXA) in Japan;
K. A. Wallenberg Foundation; Swedish Research Council; Swedish National
Space Board in Sweden; Istituto Nazionale di Astrofisica in Italy;
Centre National d'Etudes Spatiales in France
FX The authors thank the anonymous referee for helpful comments that helped
to improve the paper, and the Suzaku and Fermi teams for the operation,
calibration, and data processing. Y.F. was supported by JSPS KAKENHI
grant Nos. 2400000401 and 2424401400. L.S. was supported by Polish NSC
grant DEC-2012/04/A/ST9/00083.; 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.; 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 87
TC 1
Z9 1
U1 0
U2 1
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 JAN 10
PY 2015
VL 798
IS 2
AR 74
DI 10.1088/0004-637X/798/2/74
PG 11
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA CD1SD
UT WOS:000350853700009
ER
PT J
AU Ruane, GJ
Watnik, AT
Swartzlander, GA
AF Ruane, Garreth J.
Watnik, Abbie T.
Swartzlander, Grover A., Jr.
TI Reducing the risk of laser damage in a focal plane array using linear
pupil-plane phase elements
SO APPLIED OPTICS
LA English
DT Article
ID IMAGE-QUALITY EQUATION; LABORATORY DEMONSTRATION; SIMPLEX-METHOD;
VORTEX; WAVE; DECONVOLUTION; DIFFRACTION; CORONAGRAPH; MECHANISMS;
CHARGE
AB A compact imaging system with reduced risk of damage owing to intense laser radiation is presented. We find that a pupil phase element may reduce the peak image plane irradiance from an undesirable laser source by two orders of magnitude, thereby protecting the detector from damage. The desired scene is reconstructed in postprocessing. The general image quality equation (GIQE) [Appl. Opt. 36, 8322 (1997)] is used to estimate the interpretability of the resulting images. A localized loss of information caused by laser light is also described. This system may be advantageous over other radiation protection approaches because accurate pointing and nonlinear materials are not required. (C) 2015 Optical Society of America
C1 [Ruane, Garreth J.; Swartzlander, Grover A., Jr.] Rochester Inst Technol, Chester Carlson Ctr Imaging Sci, Rochester, NY 14623 USA.
[Watnik, Abbie T.] US Naval Res Lab, Washington, DC 20375 USA.
RP Watnik, AT (reprint author), US Naval Res Lab, Code 5662,4555 Overlook Ave SW, Washington, DC 20375 USA.
EM code5662@nrl.navy.mil
RI Ruane, Garreth/A-5997-2013;
OI Ruane, Garreth/0000-0003-4769-1665; Swartzlander,
Grover/0000-0003-3513-2225
FU Naval Research Enterprise Internship Program; American Society for
Engineering Education; Office of Naval Research
FX This work was supported by the Naval Research Enterprise Internship
Program, the American Society for Engineering Education, and the Office
of Naval Research.
NR 50
TC 1
Z9 1
U1 0
U2 9
PU OPTICAL SOC AMER
PI WASHINGTON
PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA
SN 1559-128X
EI 2155-3165
J9 APPL OPTICS
JI Appl. Optics
PD JAN 10
PY 2015
VL 54
IS 2
BP 210
EP 218
DI 10.1364/AO.54.000210
PG 9
WC Optics
SC Optics
GA AY8UT
UT WOS:000347829600009
PM 25967619
ER
PT J
AU Wagner, DK
AF Wagner, Donald K.
TI Delta-wye reduction of almost-planar graphs
SO DISCRETE APPLIED MATHEMATICS
LA English
DT Article
DE Delta-wye; Almost-planar graphs
ID FORBIDDEN MINORS; REGULAR MATROIDS; REDUCIBILITY; DECOMPOSITION
AB A non-planar graph G is almost planar if, for every edge e of G, either G \ e or G / e is planar. The main result of this paper is that every almost-planar graph is delta wye reducible to K-3,K-3, and moreover, there exists a reduction sequence in which every graph is almost planar. Analogous results are shown to hold for other classes of graphs, and also for regular, almost-graphic matroids. Published by Elsevier B.V.
C1 Off Naval Res, Math Comp & Informat Sci Div, Arlington, VA 22217 USA.
RP Wagner, DK (reprint author), Off Naval Res, Math Comp & Informat Sci Div, Arlington, VA 22217 USA.
EM don.wagner@navy.mil
NR 22
TC 0
Z9 0
U1 0
U2 0
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0166-218X
EI 1872-6771
J9 DISCRETE APPL MATH
JI Discret Appl. Math.
PD JAN 10
PY 2015
VL 180
BP 158
EP 167
DI 10.1016/j.dam.2014.07.014
PG 10
WC Mathematics, Applied
SC Mathematics
GA AW8YP
UT WOS:000346545500017
ER
PT J
AU Heyman, JN
Stein, JD
Kaminski, ZS
Banman, AR
Massari, AM
Robinson, JT
AF Heyman, J. N.
Stein, J. D.
Kaminski, Z. S.
Banman, A. R.
Massari, A. M.
Robinson, J. T.
TI Carrier heating and negative photoconductivity in graphene
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
ID DYNAMICS; SPECTROSCOPY; DISTRIBUTIONS; CONDUCTIVITY; RELAXATION; FILMS;
LAYER
AB We investigated negative photoconductivity in graphene using ultrafast terahertz techniques. Infrared transmission was used to determine the Fermi energy, carrier density, and mobility of p-type chemical vapor deposition graphene samples. Time-resolved terahertz photoconductivity measurements using a tunable mid-infrared pump probed these samples at photon energies between 0.35 eV and 1.55 eV, approximately one-half to three times the Fermi energy of the samples. Although interband optical transitions in graphene are blocked for pump photon energies less than twice the Fermi energy, we observe negative photoconductivity at all pump photon energies investigated, indicating that interband excitation is not required to observe this effect. Our results are consistent with a thermalized free-carrier population that cools by electron-phonon scattering, but are inconsistent with models of negative photoconductivity based on population inversion. (C) 2015 AIP Publishing LLC.
C1 [Heyman, J. N.; Stein, J. D.; Kaminski, Z. S.; Banman, A. R.] Macalester Coll, St Paul, MN 55105 USA.
[Massari, A. M.] Univ Minnesota, Sch Chem, Minneapolis, MN 55455 USA.
[Robinson, J. T.] Naval Res Lab, Washington, DC 20375 USA.
RP Heyman, JN (reprint author), Macalester Coll, St Paul, MN 55105 USA.
OI Heyman, James/0000-0003-1236-674X
FU National Science Foundation [DMR-1006065, CHE-1048560]; Base Programs
through the Office of Naval Research
FX The authors gratefully acknowledge the contribution of Ms. Margaret
Molter and Dr. Tim Anglin in designing and building the experimental
apparatus and Mr. Rhyan Foo Kune in developing the numerical
simulations. This material is based upon work supported by the National
Science Foundation under Grant No. DMR-1006065 and by CHE-1048560.
Research at NRL was supported by Base Programs funded through the Office
of Naval Research.
NR 30
TC 2
Z9 2
U1 2
U2 37
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 JAN 7
PY 2015
VL 117
IS 1
AR 015101
DI 10.1063/1.4905192
PG 6
WC Physics, Applied
SC Physics
GA AZ0TU
UT WOS:000347958600052
ER
PT J
AU Daniele, MA
Boyd, DA
Adams, AA
Ligler, FS
AF Daniele, Michael A.
Boyd, Darryl A.
Adams, Andre A.
Ligler, Frances S.
TI Microfluidic Strategies for Design and Assembly of Microfibers and
Nanofibers with Tissue Engineering and Regenerative Medicine
Applications
SO ADVANCED HEALTHCARE MATERIALS
LA English
DT Article
ID THIOL-ENE; SPINNING PROCESS; ALGINATE FIBERS; HYDROGEL FIBERS; LIQUID
FLOW; FABRICATION; SCAFFOLDS; CHEMISTRY; CELLS; IMMOBILIZATION
AB Fiber-based materials provide critical capabilities for biomedical applications. Microfluidic fiber fabrication has recently emerged as a very promising route to the synthesis of polymeric fibers at the micro and nanoscale, providing fine control over fiber shape, size, chemical anisotropy, and biological activity. This Progress Report summarizes advanced microfluidic methods for the fabrication of both microscale and nanoscale fibers and illustrates how different methods are enabling new biomedical applications. Microfluidic fabrication methods and resultant materials are explained from the perspective of their microfluidic device principles, including co-flow, cross-flow, and flow-shaping designs. It is then detailed how the microchannel design and flow parameters influence the variety of synthesis chemistries that can be utilized. Finally, the integration of biomaterials and microfluidic strategies is discussed to manufacture unique fiber-based systems, including cell scaffolds, cell encapsulation, and woven tissue matrices.
C1 [Daniele, Michael A.; Boyd, Darryl A.; Adams, Andre A.] Naval Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 USA.
[Ligler, Frances S.] Univ N Carolina, Dept Biomed Engn, Chapel Hill, NC 27965 USA.
[Ligler, Frances S.] N Carolina State Univ, Raleigh, NC 27965 USA.
RP Daniele, MA (reprint author), Naval Res Lab, Ctr Bio Mol Sci & Engn, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM michael.daniele.ctr@nrl.navy.mil
RI Boyd, Darryl/F-4269-2016
OI Boyd, Darryl/0000-0001-7327-2443
FU National Research Council Postdoctoral Associateship; Naval Research
Laboratory (NRL); Office of Naval Research (ONR) 6.1 work unit
[MA041-06-41-4943]
FX Work performed by M.A.D. and D.A.B. was supported by a National Research
Council Postdoctoral Associateship. This work was supported by the Naval
Research Laboratory (NRL) and the Office of Naval Research (ONR) 6.1
work unit MA041-06-41-4943. The views expressed within represent those
of the authors and do not reflect the opinion or policy of the U.S. Navy
or Department of Defense.
NR 105
TC 19
Z9 19
U1 20
U2 127
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 2192-2640
EI 2192-2659
J9 ADV HEALTHC MATER
JI Adv. Healthc. Mater.
PD JAN 7
PY 2015
VL 4
IS 1
DI 10.1002/adhm.201400144
PG 18
WC Engineering, Biomedical; Nanoscience & Nanotechnology; Materials
Science, Biomaterials
SC Engineering; Science & Technology - Other Topics; Materials Science
GA AY4IA
UT WOS:000347540100002
PM 24853649
ER
PT J
AU Cavaiola, LJ
Gompert, DC
Libicki, M
AF Cavaiola, Lawrence J.
Gompert, David C.
Libicki, Martin
TI Cyber House Rules: On War, Retaliation and Escalation
SO SURVIVAL
LA English
DT Article
AB Cyber war is unfamiliar, dynamic and potentially uncontrollable. While not as destructive as nuclear war, it should be approached with similar respect.
RP Cavaiola, LJ (reprint author), US Naval Acad, Annapolis, MD 21402 USA.
NR 21
TC 1
Z9 1
U1 2
U2 2
PU ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXFORDSHIRE, ENGLAND
SN 0039-6338
EI 1468-2699
J9 SURVIVAL
JI Survival
PD JAN 2
PY 2015
VL 57
IS 1
BP 81
EP 104
DI 10.1080/00396338.2015.1008300
PG 24
WC International Relations; Political Science
SC International Relations; Government & Law
GA CA6OE
UT WOS:000349033300006
ER
PT J
AU Basafa, E
Murphy, RJ
Otake, Y
Kutzer, MD
Belkoff, SM
Mears, SC
Armand, M
AF Basafa, Ehsan
Murphy, Ryan J.
Otake, Yoshito
Kutzer, Michael D.
Belkoff, Stephen M.
Mears, Simon C.
Armand, Mehran
TI Subject-specific planning of femoroplasty: An experimental verification
study
SO JOURNAL OF BIOMECHANICS
LA English
DT Article
DE Femoroplasty; Cement augmentation; Planning; Mechanical test
ID PROXIMAL FEMUR; CEMENT AUGMENTATION; HIP-FRACTURES; IMPACT;
OSTEOPOROSIS; PREVENTION; RALOXIFENE; PROTECTOR; FORCE; WOMEN
AB The risk of osteoporotic hip fractures may be reduced by augmenting susceptible femora with acrylic polymethylmethacrylate (PMMA) bone cement. Grossly filling the proximal femur with PMMA has shown promise, but the augmented bones can suffer from thermal necrosis or cement leakage, among other side effects. We hypothesized that, using subject-specific planning and computer-assisted augmentation, we can minimize cement volume while increasing bone strength and reducing the risk of fracture. We mechanically tested eight pairs of osteoporotic femora, after augmenting one from each pair following patient-specific planning reported earlier, which optimized cement distribution and strength increase. An average of 9.5( +/- 1.7) ml of cement was injected in the augmented set. Augmentation significantly (P < 0.05) increased the yield load by 33%, maximum load by 30%, yield energy by 118%, and maximum energy by 94% relative to the non-augmented controls. Also predicted yield loads correlated well (R-2=0.74) with the experiments and, for augmented specimens, cement profiles were predicted with an average surface error of <2 mm, further validating our simulation techniques. Results of the current study suggest that subject-specific planning of femoroplasty reduces the risk of hip fracture while minimizing the amount of cement required. (C) 2014 Elsevier Ltd. All rights reserved.
C1 [Basafa, Ehsan; Murphy, Ryan J.; Armand, Mehran] Johns Hopkins Univ, Lab Computat Sensing & Robot, Baltimore, MD USA.
[Murphy, Ryan J.; Armand, Mehran] Johns Hopkins Univ, Appl Phys Lab, Res & Exploratory Dev Dept, Laurel, MD USA.
[Otake, Yoshito] Nara Inst Sci & Technol, Grad Sch Informat Sci, Nara 6300101, Japan.
[Kutzer, Michael D.] US Naval Acad, Annapolis, MD 21402 USA.
[Belkoff, Stephen M.] Johns Hopkins Univ, Bayview Med Ctr, Int Ctr Orthopaed Adv, Baltimore, MD USA.
[Mears, Simon C.] Baylor Reg Med Ctr, Total Joint Replacement Ctr, Plano, TX USA.
RP Basafa, E (reprint author), 3400 N Charles St,Hackerman 128, Baltimore, MD 21218 USA.
EM basafa@jhu.edu
FU National Institutes of Health, USA [R21-EB007747, R21-AR063815]
FX We thank Mr. Demetries Boston and Mr. Evan Langdale of the Johns Hopkins
Bayview Medical Center for their help regarding harvesting and preparing
the specimens, acquiring CT scans, and performing the mechanical tests.
This work was supported by Grant nos. R21-EB007747 and R21-AR063815 from
National Institutes of Health, USA. The funders had no role in the study
design, data collection, analysis of the data, writing of the
manuscript, or the decision to submit the manuscript for publication.
NR 32
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U1 0
U2 1
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0021-9290
EI 1873-2380
J9 J BIOMECH
JI J. Biomech.
PD JAN 2
PY 2015
VL 48
IS 1
BP 59
EP 64
DI 10.1016/j.jbiomech.2014.11.002
PG 6
WC Biophysics; Engineering, Biomedical
SC Biophysics; Engineering
GA AZ6NL
UT WOS:000348336200009
PM 25468663
ER
PT J
AU Agnarsson, G
Greenlaw, R
Kantabutra, S
AF Agnarsson, Geir
Greenlaw, Raymond
Kantabutra, Sanpawat
TI On Cyber Attacks and the Maximum-Weight Rooted-Subtree Problem
SO ACTA CYBERNETICA
LA English
DT Article
DE cyber security; defense-in-depth; game over; information security;
layered security; weighted rooted trees; complexity; polynomial time;
pseudo-polynomial time
ID DENSITY SUBTREE; TREES
AB This paper makes three contributions to cyber-security research. First, we define a model for cyber-security systems and the concept of a cyber-security attack within the model's framework. The model highlights the importance of game-over components critical system components which if acquired will give an adversary the ability to defeat a system completely. The model is based on systems that use defense-in-depth/layered-security approaches, as many systems do. In the model we define the concept of penetration cost, which is the cost that must be paid in order to break into the next layer of security. Second, we define natural decision and optimization problems based on cyber-security attacks in terms of doubly weighted trees, and analyze their complexity. More precisely, given a tree T rooted at a vertex r, a penetrating cost edge function c on T, a target-acquisition vertex function p on T, the attacker's budget and the game-over threshold B, G E Q+ respectively, we consider the problem of determining the existence of a rooted subtree T' of T within the attacker's budget (that is, the sum of the costs of the edges in T' is less than or equal to B) with total acquisition value more than the game-over threshold (that is, the sum of the target values of the nodes in T' is greater than or equal to G). We prove that the general version of this problem is intractable, but does admit a polynomial time approximation scheme. We also analyze the complexity of three restricted versions of the problems, where the penetration cost is the constant function, integer-valued, and rational-valued among a given fixed number of distinct values. Using recursion and dynamic-programming techniques, we show that for constant penetration costs an optimal cyber-attack strategy can be found in polynomial time, and for integer-valued and rational-valued penetration costs optimal cyber-attack strategies can be found in pseudo-polynomial time. Third, we provide a list of open problems relating to the architectural design of cybersecurity systems and to the model.
C1 [Agnarsson, Geir] George Mason Univ, Dept Math Sci, Fairfax, VA 22030 USA.
[Greenlaw, Raymond] US Naval Acad, Cyber Secur Studies, Annapolis, MD 21402 USA.
[Kantabutra, Sanpawat] Chiang Mai Univ, Dept Comp Engn, Chiang Mai 50200, Thailand.
RP Agnarsson, G (reprint author), George Mason Univ, Dept Math Sci, Fairfax, VA 22030 USA.
EM geir@math.gmu.edu; greenlaw@usna.edu; sanpawat@alumni.tufts.edu
NR 24
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U1 0
U2 0
PU UNIV SZEGED, FAC SCIENCE
PI SZEGED
PA C/O E SZABO, EXCHANGE LIBRARIAN, DUGONICS TER 13, PO BOX 393, SZEGED,
6701, HUNGARY
SN 0324-721X
J9 ACTA CYBERN
JI Acta Cybern.
PY 2015
VL 22
IS 3
BP 591
EP 612
DI 10.14232/actacyb.22.3.2016.3
PG 22
WC Computer Science, Cybernetics
SC Computer Science
GA DW5ZC
UT WOS:000383725200003
ER
PT J
AU Mantle, PJ
AF Mantle, Peter J.
BA Mantle, PJ
BF Mantle, PJ
TI The Goal of One Hundred Knots
SO HIGH-SPEED MARINE CRAFT: ONE HUNDRED KNOTS AT SEA
LA English
DT Article; Book Chapter
C1 [Mantle, Peter J.] British Hovercraft Corp, East Cowes, England.
[Mantle, Peter J.] Bell Aerosp, US Navy Surface Effect Ship SES 100B, Buffalo, NY USA.
[Mantle, Peter J.] US Navy, ANVCE Project, Washington, DC USA.
[Mantle, Peter J.] Off Secretary Navy SECNAV, Washington, DC USA.
[Mantle, Peter J.] Lockheed Martin Corp, Seattle, WA USA.
NR 5
TC 0
Z9 0
U1 0
U2 0
PU CAMBRIDGE UNIV PRESS
PI CAMBRIDGE
PA THE PITT BUILDING, TRUMPINGTON ST, CAMBRIDGE CB2 1RP, CAMBS, ENGLAND
BN 978-1-107-09041-5
PY 2015
BP 1
EP 26
D2 10.1017/CBO9781316106716
PG 26
WC Engineering, Marine
SC Engineering
GA BG0OJ
UT WOS:000386433700002
ER
PT J
AU Mantle, PJ
AF Mantle, Peter J.
BA Mantle, PJ
BF Mantle, PJ
TI High-Speed Marine Craft ONE HUNDRED KNOTS AT SEA Preface
SO HIGH-SPEED MARINE CRAFT: ONE HUNDRED KNOTS AT SEA
LA English
DT Editorial Material; Book Chapter
C1 [Mantle, Peter J.] British Hovercraft Corp, East Cowes, England.
[Mantle, Peter J.] Bell Aerosp, US Navy Surface Effect Ship SES 100B, Buffalo, NY USA.
[Mantle, Peter J.] US Navy, ANVCE Project, Washington, DC USA.
[Mantle, Peter J.] Off Secretary Navy SECNAV, Washington, DC USA.
[Mantle, Peter J.] Lockheed Martin Corp, Seattle, WA USA.
NR 0
TC 0
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U1 0
U2 0
PU CAMBRIDGE UNIV PRESS
PI CAMBRIDGE
PA THE PITT BUILDING, TRUMPINGTON ST, CAMBRIDGE CB2 1RP, CAMBS, ENGLAND
BN 978-1-107-09041-5
PY 2015
BP XVII
EP XX
D2 10.1017/CBO9781316106716
PG 4
WC Engineering, Marine
SC Engineering
GA BG0OJ
UT WOS:000386433700001
ER
PT J
AU Mantle, PJ
AF Mantle, Peter J.
BA Mantle, PJ
BF Mantle, PJ
TI History of High Speed Ship Development
SO HIGH-SPEED MARINE CRAFT: ONE HUNDRED KNOTS AT SEA
LA English
DT Article; Book Chapter
C1 [Mantle, Peter J.] British Hovercraft Corp, East Cowes, England.
[Mantle, Peter J.] Bell Aerosp, US Navy Surface Effect Ship SES 100B, Buffalo, NY USA.
[Mantle, Peter J.] US Navy, ANVCE Project, Washington, DC USA.
[Mantle, Peter J.] Off Secretary Navy SECNAV, Washington, DC USA.
[Mantle, Peter J.] Lockheed Martin Corp, Seattle, WA USA.
NR 24
TC 0
Z9 0
U1 0
U2 0
PU CAMBRIDGE UNIV PRESS
PI CAMBRIDGE
PA THE PITT BUILDING, TRUMPINGTON ST, CAMBRIDGE CB2 1RP, CAMBS, ENGLAND
BN 978-1-107-09041-5
PY 2015
BP 27
EP 63
D2 10.1017/CBO9781316106716
PG 37
WC Engineering, Marine
SC Engineering
GA BG0OJ
UT WOS:000386433700003
ER
PT J
AU Mantle, PJ
AF Mantle, Peter J.
BA Mantle, PJ
BF Mantle, PJ
TI The First Surface Effect Ship
SO HIGH-SPEED MARINE CRAFT: ONE HUNDRED KNOTS AT SEA
LA English
DT Article; Book Chapter
C1 [Mantle, Peter J.] British Hovercraft Corp, East Cowes, England.
[Mantle, Peter J.] Bell Aerosp, US Navy Surface Effect Ship SES 100B, Buffalo, NY USA.
[Mantle, Peter J.] US Navy, ANVCE Project, Washington, DC USA.
[Mantle, Peter J.] Off Secretary Navy SECNAV, Washington, DC USA.
[Mantle, Peter J.] Lockheed Martin Corp, Seattle, WA USA.
NR 13
TC 0
Z9 0
U1 0
U2 0
PU CAMBRIDGE UNIV PRESS
PI CAMBRIDGE
PA THE PITT BUILDING, TRUMPINGTON ST, CAMBRIDGE CB2 1RP, CAMBS, ENGLAND
BN 978-1-107-09041-5
PY 2015
BP 64
EP 85
D2 10.1017/CBO9781316106716
PG 22
WC Engineering, Marine
SC Engineering
GA BG0OJ
UT WOS:000386433700004
ER
PT J
AU Mantle, PJ
AF Mantle, Peter J.
BA Mantle, PJ
BF Mantle, PJ
TI History of US Maritime Administration "Large Surface Effect Ship"
Program
SO HIGH-SPEED MARINE CRAFT: ONE HUNDRED KNOTS AT SEA
LA English
DT Article; Book Chapter
C1 [Mantle, Peter J.] British Hovercraft Corp, East Cowes, England.
[Mantle, Peter J.] Bell Aerosp, US Navy Surface Effect Ship SES 100B, Buffalo, NY USA.
[Mantle, Peter J.] US Navy, ANVCE Project, Washington, DC USA.
[Mantle, Peter J.] Off Secretary Navy SECNAV, Washington, DC USA.
[Mantle, Peter J.] Lockheed Martin Corp, Seattle, WA USA.
NR 6
TC 0
Z9 0
U1 0
U2 0
PU CAMBRIDGE UNIV PRESS
PI CAMBRIDGE
PA THE PITT BUILDING, TRUMPINGTON ST, CAMBRIDGE CB2 1RP, CAMBS, ENGLAND
BN 978-1-107-09041-5
PY 2015
BP 86
EP 120
D2 10.1017/CBO9781316106716
PG 35
WC Engineering, Marine
SC Engineering
GA BG0OJ
UT WOS:000386433700005
ER
PT J
AU Mantle, PJ
AF Mantle, Peter J.
BA Mantle, PJ
BF Mantle, PJ
TI History of US Navy "Large High Speed Surface Effect Ship" Program
SO HIGH-SPEED MARINE CRAFT: ONE HUNDRED KNOTS AT SEA
LA English
DT Article; Book Chapter
C1 [Mantle, Peter J.] British Hovercraft Corp, East Cowes, England.
[Mantle, Peter J.] Bell Aerosp, US Navy Surface Effect Ship SES 100B, Buffalo, NY USA.
[Mantle, Peter J.] US Navy, ANVCE Project, Washington, DC USA.
[Mantle, Peter J.] Off Secretary Navy SECNAV, Washington, DC USA.
[Mantle, Peter J.] Lockheed Martin Corp, Seattle, WA USA.
NR 6
TC 0
Z9 0
U1 0
U2 0
PU CAMBRIDGE UNIV PRESS
PI CAMBRIDGE
PA THE PITT BUILDING, TRUMPINGTON ST, CAMBRIDGE CB2 1RP, CAMBS, ENGLAND
BN 978-1-107-09041-5
PY 2015
BP 121
EP 148
D2 10.1017/CBO9781316106716
PG 28
WC Engineering, Marine
SC Engineering
GA BG0OJ
UT WOS:000386433700006
ER
PT J
AU Mantle, PJ
AF Mantle, Peter J.
BA Mantle, PJ
BF Mantle, PJ
TI SES-100A and SES 100B Test Craft and the "THREE THOUSAND TON SES"
SO HIGH-SPEED MARINE CRAFT: ONE HUNDRED KNOTS AT SEA
LA English
DT Article; Book Chapter
C1 [Mantle, Peter J.] British Hovercraft Corp, East Cowes, England.
[Mantle, Peter J.] Bell Aerosp, US Navy Surface Effect Ship SES 100B, Buffalo, NY USA.
[Mantle, Peter J.] US Navy, ANVCE Project, Washington, DC USA.
[Mantle, Peter J.] Off Secretary Navy SECNAV, Washington, DC USA.
[Mantle, Peter J.] Lockheed Martin Corp, Seattle, WA USA.
NR 30
TC 0
Z9 0
U1 0
U2 0
PU CAMBRIDGE UNIV PRESS
PI CAMBRIDGE
PA THE PITT BUILDING, TRUMPINGTON ST, CAMBRIDGE CB2 1RP, CAMBS, ENGLAND
BN 978-1-107-09041-5
PY 2015
BP 149
EP 227
D2 10.1017/CBO9781316106716
PG 79
WC Engineering, Marine
SC Engineering
GA BG0OJ
UT WOS:000386433700007
ER
PT J
AU Mantle, PJ
AF Mantle, Peter J.
BA Mantle, PJ
BF Mantle, PJ
TI Economic Considerations
SO HIGH-SPEED MARINE CRAFT: ONE HUNDRED KNOTS AT SEA
LA English
DT Article; Book Chapter
C1 [Mantle, Peter J.] British Hovercraft Corp, East Cowes, England.
[Mantle, Peter J.] Bell Aerosp, US Navy Surface Effect Ship SES 100B, Buffalo, NY USA.
[Mantle, Peter J.] US Navy, ANVCE Project, Washington, DC USA.
[Mantle, Peter J.] Off Secretary Navy SECNAV, Washington, DC USA.
[Mantle, Peter J.] Lockheed Martin Corp, Seattle, WA USA.
NR 17
TC 0
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U1 0
U2 0
PU CAMBRIDGE UNIV PRESS
PI CAMBRIDGE
PA THE PITT BUILDING, TRUMPINGTON ST, CAMBRIDGE CB2 1RP, CAMBS, ENGLAND
BN 978-1-107-09041-5
PY 2015
BP 228
EP 276
D2 10.1017/CBO9781316106716
PG 49
WC Engineering, Marine
SC Engineering
GA BG0OJ
UT WOS:000386433700008
ER
PT J
AU Mantle, PJ
AF Mantle, Peter J.
BA Mantle, PJ
BF Mantle, PJ
TI Technical Considerations
SO HIGH-SPEED MARINE CRAFT: ONE HUNDRED KNOTS AT SEA
LA English
DT Article; Book Chapter
C1 [Mantle, Peter J.] British Hovercraft Corp, East Cowes, England.
[Mantle, Peter J.] Bell Aerosp, US Navy Surface Effect Ship SES 100B, Buffalo, NY USA.
[Mantle, Peter J.] US Navy, ANVCE Project, Washington, DC USA.
[Mantle, Peter J.] Off Secretary Navy SECNAV, Washington, DC USA.
[Mantle, Peter J.] Lockheed Martin Corp, Seattle, WA USA.
NR 50
TC 0
Z9 0
U1 0
U2 0
PU CAMBRIDGE UNIV PRESS
PI CAMBRIDGE
PA THE PITT BUILDING, TRUMPINGTON ST, CAMBRIDGE CB2 1RP, CAMBS, ENGLAND
BN 978-1-107-09041-5
PY 2015
BP 277
EP 389
D2 10.1017/CBO9781316106716
PG 113
WC Engineering, Marine
SC Engineering
GA BG0OJ
UT WOS:000386433700009
ER
PT J
AU Mantle, PJ
AF Mantle, Peter J.
BA Mantle, PJ
BF Mantle, PJ
TI Navy Military Operations Considerations
SO HIGH-SPEED MARINE CRAFT: ONE HUNDRED KNOTS AT SEA
LA English
DT Article; Book Chapter
C1 [Mantle, Peter J.] British Hovercraft Corp, East Cowes, England.
[Mantle, Peter J.] Bell Aerosp, US Navy Surface Effect Ship SES 100B, Buffalo, NY USA.
[Mantle, Peter J.] US Navy, ANVCE Project, Washington, DC USA.
[Mantle, Peter J.] Off Secretary Navy SECNAV, Washington, DC USA.
[Mantle, Peter J.] Lockheed Martin Corp, Seattle, WA USA.
NR 6
TC 0
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U1 0
U2 0
PU CAMBRIDGE UNIV PRESS
PI CAMBRIDGE
PA THE PITT BUILDING, TRUMPINGTON ST, CAMBRIDGE CB2 1RP, CAMBS, ENGLAND
BN 978-1-107-09041-5
PY 2015
BP 390
EP 410
D2 10.1017/CBO9781316106716
PG 21
WC Engineering, Marine
SC Engineering
GA BG0OJ
UT WOS:000386433700010
ER
PT J
AU Mantle, PJ
AF Mantle, Peter J.
BA Mantle, PJ
BF Mantle, PJ
TI Advanced Naval Vehicles Concepts Evaluation (ANVCE) Project
SO HIGH-SPEED MARINE CRAFT: ONE HUNDRED KNOTS AT SEA
LA English
DT Article; Book Chapter
C1 [Mantle, Peter J.] British Hovercraft Corp, East Cowes, England.
[Mantle, Peter J.] Bell Aerosp, US Navy Surface Effect Ship SES 100B, Buffalo, NY USA.
[Mantle, Peter J.] US Navy, ANVCE Project, Washington, DC USA.
[Mantle, Peter J.] Off Secretary Navy SECNAV, Washington, DC USA.
[Mantle, Peter J.] Lockheed Martin Corp, Seattle, WA USA.
NR 46
TC 0
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U1 0
U2 0
PU CAMBRIDGE UNIV PRESS
PI CAMBRIDGE
PA THE PITT BUILDING, TRUMPINGTON ST, CAMBRIDGE CB2 1RP, CAMBS, ENGLAND
BN 978-1-107-09041-5
PY 2015
BP 411
EP 500
D2 10.1017/CBO9781316106716
PG 90
WC Engineering, Marine
SC Engineering
GA BG0OJ
UT WOS:000386433700011
ER
PT J
AU Mantle, PJ
AF Mantle, Peter J.
BA Mantle, PJ
BF Mantle, PJ
TI Aerodynamic Air Cushion Craft
SO HIGH-SPEED MARINE CRAFT: ONE HUNDRED KNOTS AT SEA
LA English
DT Article; Book Chapter
ID WINGS
C1 [Mantle, Peter J.] British Hovercraft Corp, East Cowes, England.
[Mantle, Peter J.] Bell Aerosp, US Navy Surface Effect Ship SES 100B, Buffalo, NY USA.
[Mantle, Peter J.] US Navy, ANVCE Project, Washington, DC USA.
[Mantle, Peter J.] Off Secretary Navy SECNAV, Washington, DC USA.
[Mantle, Peter J.] Lockheed Martin Corp, Seattle, WA USA.
NR 47
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PU CAMBRIDGE UNIV PRESS
PI CAMBRIDGE
PA THE PITT BUILDING, TRUMPINGTON ST, CAMBRIDGE CB2 1RP, CAMBS, ENGLAND
BN 978-1-107-09041-5
PY 2015
BP 501
EP 586
D2 10.1017/CBO9781316106716
PG 86
WC Engineering, Marine
SC Engineering
GA BG0OJ
UT WOS:000386433700012
ER
PT J
AU Mantle, PJ
AF Mantle, Peter J.
BA Mantle, PJ
BF Mantle, PJ
TI Lessons Learned and Where to Next?
SO HIGH-SPEED MARINE CRAFT: ONE HUNDRED KNOTS AT SEA
LA English
DT Article; Book Chapter
C1 [Mantle, Peter J.] British Hovercraft Corp, East Cowes, England.
[Mantle, Peter J.] Bell Aerosp, US Navy Surface Effect Ship SES 100B, Buffalo, NY USA.
[Mantle, Peter J.] US Navy, ANVCE Project, Washington, DC USA.
[Mantle, Peter J.] Off Secretary Navy SECNAV, Washington, DC USA.
[Mantle, Peter J.] Lockheed Martin Corp, Seattle, WA USA.
NR 4
TC 0
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U1 0
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PU CAMBRIDGE UNIV PRESS
PI CAMBRIDGE
PA THE PITT BUILDING, TRUMPINGTON ST, CAMBRIDGE CB2 1RP, CAMBS, ENGLAND
BN 978-1-107-09041-5
PY 2015
BP 587
EP 598
D2 10.1017/CBO9781316106716
PG 12
WC Engineering, Marine
SC Engineering
GA BG0OJ
UT WOS:000386433700013
ER
PT J
AU Kang, W
Wilcox, L
AF Kang, Wei
Wilcox, Lucas
GP IEEE
TI An Example of Solving HJB Equations Using Sparse Grid for Feedback
Control
SO 2015 54TH IEEE CONFERENCE ON DECISION AND CONTROL (CDC)
LA English
DT Proceedings Paper
CT 54th IEEE Conference on Decision and Control (CDC)
CY DEC 15-18, 2015
CL Osaka, JAPAN
SP Kozo Keikaku Engn, MathWorks, Springer, CYBERNET Syst, Mitsubishi Elect, Soc Ind & Appl Math, Altair, Int Journal Automat & Comp, IEEE CAA Journal Automatica Sinica, Cogent Engn, Now, IHI, IEEE
ID RIGID SPACECRAFT; ATTITUDE-CONTROL; STABILIZATION
AB It is well known that solving the Hamilton-Jacobi-Bellman (HJB) equation in moderate and high dimensions (d > 3) suffers the curse of dimensionality. In this paper, we introduce and demonstrate an example of solving the 6-D HJB equation for the optimal attitude control of a rigid body equipped with two pairs of momentum wheels. The system is uncontrollable. To mitigate the curse-of-dimensionality, a computational method based on sparse grids is introduced. The method is causality free, which enjoys the advantage of perfect parallelism. The problem is solved using several hundred CPU cores in parallel. In the simulations, the solution of the HJB equation is integrated into a model predictive control for optimal attitude stabilization.
C1 [Kang, Wei; Wilcox, Lucas] Naval Postgrad Sch, Fac Appl Math, Monterey, CA 93943 USA.
RP Kang, W (reprint author), Naval Postgrad Sch, Fac Appl Math, Monterey, CA 93943 USA.
EM wkang@nps.edu; lwilcox@nps.edu
NR 25
TC 0
Z9 0
U1 1
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4799-7886-1
PY 2015
BP 1100
EP 1105
PG 6
WC Automation & Control Systems; Engineering, Electrical & Electronic
SC Automation & Control Systems; Engineering
GA BF4PY
UT WOS:000381554501043
ER
PT J
AU Krener, AJ
AF Krener, Arthur J.
GP IEEE
TI Minimum Energy Estimation and Moving Horizon Estimation
SO 2015 54TH IEEE CONFERENCE ON DECISION AND CONTROL (CDC)
LA English
DT Proceedings Paper
CT 54th IEEE Conference on Decision and Control (CDC)
CY DEC 15-18, 2015
CL Osaka, JAPAN
SP Kozo Keikaku Engn, MathWorks, Springer, CYBERNET Syst, Mitsubishi Elect, Soc Ind & Appl Math, Altair, Int Journal Automat & Comp, IEEE CAA Journal Automatica Sinica, Cogent Engn, Now, IHI, IEEE
ID MODEL-PREDICTIVE CONTROL; FUTURE
AB Minimum Energy Estimation is a way of filtering the state of a nonlinear system from partial and inexact measurements. It is a generalization of Gauss' method of least squares. Its application to filtering of control systems goes back at least to Mortenson who called it Maximum Likelyhood Estimation [12]. For linear, Gaussian systems it reduces to maximum likelihood estimation (aka Kalman Filtering) but this is not true for nonlinear systems. We prefer the name Minimum Energy Estimation (MEE) that was introduced by Hijab [4]. Both Mortenson and Hijab dealt with systems in continuous time, we extend their methods to discrete time systems and show how power series techniques can lessen the computational burden.
Moving Horizon Estimation (MHE) is a moving window version of MEE. It computes the solution to an optimal control problem over a past moving window that is constrained by the actual observations on the window. The optimal state trajectory at the end of the window is the MEE estimate at this time. The cost in the optimal control problem is usually taken to be an L2 norm of the three slack variables; the initial condion noise, the driving noise and the measurement noise. MHE requires the buffering of the measurements over the past window. The optimal control problem is solved in real time by a nonlinear program solver but it becomes more difficult as the length of the window is increased.
The power series approach to MME can be applied to MHE and this permits the choice of a very short past window consisting of one time step. This speeds up MHE and allows its real time implementaion on faster processes.
C1 [Krener, Arthur J.] Naval Postgrad Sch, Dept Appl Math, Monterey, CA 93943 USA.
RP Krener, AJ (reprint author), Naval Postgrad Sch, Dept Appl Math, Monterey, CA 93943 USA.
EM ajkrener@nps.edu
NR 15
TC 0
Z9 0
U1 1
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4799-7886-1
PY 2015
BP 4952
EP 4957
PG 6
WC Automation & Control Systems; Engineering, Electrical & Electronic
SC Automation & Control Systems; Engineering
GA BF4PY
UT WOS:000381554505024
ER
PT J
AU Szwaykowska, K
Mier-y-Teran-Romero, L
Schwartz, IB
AF Szwaykowska, K.
Mier-y-Teran-Romero, L.
Schwartz, I. B.
GP IEEE
TI Patterned Dynamics of Delay-Coupled Swarms with Random Communication
Graphs
SO 2015 54TH IEEE CONFERENCE ON DECISION AND CONTROL (CDC)
LA English
DT Proceedings Paper
CT 54th IEEE Conference on Decision and Control (CDC)
CY DEC 15-18, 2015
CL Osaka, JAPAN
SP Kozo Keikaku Engn, MathWorks, Springer, CYBERNET Syst, Mitsubishi Elect, Soc Ind & Appl Math, Altair, Int Journal Automat & Comp, IEEE CAA Journal Automatica Sinica, Cogent Engn, Now, IHI, IEEE
ID COOPERATIVE EXPLORATION; CHEMOTACTIC BACTERIA; COLLECTIVE BEHAVIOR;
SENSOR NETWORKS; MODEL; COORDINATION; CONSTRUCTION; TRANSITION;
STRATEGY; SYSTEM
AB Swarm and modular robotics are an emerging area in control of autonomous systems. However, coordinating a large group of interacting autonomous agents requires careful consideration of the logistical issues involved. In particular, inter-agent communication generally involves time delay, and bandwidth restrictions limit the number of neighbors with which each agent in the swarm can communicate. In this paper, we analyze coherent pattern dynamics of groups of delay-coupled agents, where the communication network is an Erdos-Renyi graph. We show that overall motion patterns for a globally-coupled swarm persist under decreasing network connectivity, and derive the bifurcation structure scaling relations for the emergence of different swarming behaviors as a function of the average network degree. We show excellent agreement between the theoretical scaling results and numerical simulations.
C1 [Szwaykowska, K.; Mier-y-Teran-Romero, L.; Schwartz, I. B.] US Naval Res Lab, Nonlinear Syst Dynam Sect, Div Plasma Phys, Code 6792, Washington, DC 20375 USA.
RP Szwaykowska, K (reprint author), US Naval Res Lab, Nonlinear Syst Dynam Sect, Div Plasma Phys, Code 6792, Washington, DC 20375 USA.
EM klementyna.szwaykowska.ctr@nrl.navy.mil; lmieryt1@jhu.edu;
ira.schwartz@nrl.navy.mil
NR 48
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4799-7886-1
PY 2015
BP 6496
EP 6501
PG 6
WC Automation & Control Systems; Engineering, Electrical & Electronic
SC Automation & Control Systems; Engineering
GA BF4PY
UT WOS:000381554506112
ER
PT J
AU Cichella, V
Marinho, T
Stipanovic, D
Hovakimyan, N
Kaminer, I
Trujillo, A
AF Cichella, Venanzio
Marinho, Thiago
Stipanovic, Dusan
Hovakimyan, Naira
Kaminer, Isaac
Trujillo, Anna
GP IEEE
TI Collision Avoidance Based on Line-of-Sight Angle
SO 2015 54TH IEEE CONFERENCE ON DECISION AND CONTROL (CDC)
LA English
DT Proceedings Paper
CT 54th IEEE Conference on Decision and Control (CDC)
CY DEC 15-18, 2015
CL Osaka, JAPAN
SP Kozo Keikaku Engn, MathWorks, Springer, CYBERNET Syst, Mitsubishi Elect, Soc Ind & Appl Math, Altair, Int Journal Automat & Comp, IEEE CAA Journal Automatica Sinica, Cogent Engn, Now, IHI, IEEE
ID UNMANNED AIR VEHICLES; OBSTACLE AVOIDANCE; COVERAGE CONTROL; NETWORKS;
TRACKING; ROBOTS
AB This paper addresses the problem of collision avoidance for fixed-wing unmanned aerial vehicles. The angular velocity of the aircraft is adjusted in order to avert a possible collision with cooperative or uncooperative obstacles. The novelty of this work is that the control law uses only the line-of-sight angle as feedback, which can be obtained from an inertial measurement unit and a gimbaled camera mounted onboard the vehicle. This work aims at providing a solution to the collision avoidance problem for small low-cost unmanned aerial platforms, which are not equipped with sensors capable of measuring data such as position and velocity of the obstacle. This problem of practical relevance is faced from a theoretical standpoint. A Lyapunov based analysis is outlined, which provides safety guarantees under a given set of assumptions that the obstacle must satisfy. Simulation results are presented to validate the theoretical findings.
C1 [Cichella, Venanzio; Marinho, Thiago; Stipanovic, Dusan; Hovakimyan, Naira] Univ Illinois, Urbana, IL 61801 USA.
[Kaminer, Isaac] Naval Postgrad Sch, Monterey, CA 93943 USA.
[Trujillo, Anna] NASA, Langley Res Ctr, Hampton, VA 23666 USA.
RP Cichella, V (reprint author), Univ Illinois, Urbana, IL 61801 USA.
NR 27
TC 0
Z9 0
U1 1
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4799-7886-1
PY 2015
BP 6779
EP 6784
PG 6
WC Automation & Control Systems; Engineering, Electrical & Electronic
SC Automation & Control Systems; Engineering
GA BF4PY
UT WOS:000381554506156
ER
EF