FN Thomson Reuters Web of Science™
VR 1.0
PT J
AU Roehrig, T
AF Roehrig, Terence
TI KIM JONG IL'S LEADERSHIP OF NORTH KOREA
SO PACIFIC AFFAIRS
LA English
DT Book Review
C1 [Roehrig, Terence] USN, War Coll, Newport, RI USA.
RP Roehrig, T (reprint author), USN, War Coll, Newport, RI USA.
NR 1
TC 0
Z9 0
U1 1
U2 2
PU PACIFIC AFFAIRS UNIV BRITISH COLUMBIA
PI VANCOUVER
PA #164-1855 WEST MALL, VANCOUVER, BC V6T 1Z2, CANADA
SN 0030-851X
J9 PAC AFF
JI Pac. Aff.
PD MAR
PY 2010
VL 83
IS 1
SI SI
BP 182
EP 184
PG 3
WC Area Studies
SC Area Studies
GA 586EQ
UT WOS:000276885900034
ER
PT J
AU Shope, TR
Rieg, TS
Kathiria, NN
AF Shope, Timothy R.
Rieg, Thomas S.
Kathiria, Nazima N.
TI Corneal Abrasions in Young Infants
SO PEDIATRICS
LA English
DT Article
DE corneal abrasion; infant crying; fluorescein eye examination
AB OBJECTIVES: We sought to determine the prevalence of corneal abrasions and possible associations with fingernail length, demographic information, sleeping, and crying among young infants.
METHODS: Parents of 1- to 12-week-old infants without symptoms who were presenting for well-child visits completed a brief questionnaire on age, gender, race, fingernail-trimming practices, and sleeping and crying in the preceding 24-hour period. Fingernail length was measured, and eyes were examined through staining with fluorescein and illumination/magnification with a Bluminator (Eidolon Optical, Natick, MA). Patients with corneal abrasions were given orally administered acetaminophen and erythromycin ointment. Masked interrater reliability for abrasions was measured. Logistic regression analyses determined the association of corneal abrasions with potential covariates.
RESULTS: Ninety-six subjects were enrolled, including 47 girls (49%), with a mean age of 32.2 days (SD: 21.7 days). Forty-seven infants (49%) had abrasions. Demographic variables and mean crying times (114.8 +/- 124.9 vs 86.5 +/- 111.7 minutes; P < .24) were not significantly different for infants with and without abrasions. Infants with abrasions slept more (15.9 +/- 3.3 vs 14.5 +/- 3.6 hours; P = .054). Associations of fingernail-trimming method and fingernail length with corneal abrasions were not statistically significant. Masked interrater reliability was high, with agreement between the primary investigator and the associate investigator for 20 (91%) of 22 eyes and agreement between the primary investigator and a pediatric ophthalmologist for 9 (90%) of 10 eyes.
CONCLUSIONS: Corneal abrasions are extremely common among 1- to 12-week-old infants and have unclear clinical significance. Primary care physicians should be careful about attributing unexplained persistent crying to corneal abrasions, potentially missing a more-serious problem. Pediatrics 2010;125:e565-e569
C1 [Shope, Timothy R.; Rieg, Thomas S.; Kathiria, Nazima N.] USN, Med Ctr Portsmouth, Dept Pediat, Portsmouth, VA 23708 USA.
RP Shope, TR (reprint author), USN, Med Ctr Portsmouth, Dept Pediat, 620 John Paul Jones Circle, Portsmouth, VA 23708 USA.
EM timothy.shope@med.navy.mil
NR 9
TC 2
Z9 2
U1 0
U2 0
PU AMER ACAD PEDIATRICS
PI ELK GROVE VILLAGE
PA 141 NORTH-WEST POINT BLVD,, ELK GROVE VILLAGE, IL 60007-1098 USA
SN 0031-4005
J9 PEDIATRICS
JI Pediatrics
PD MAR
PY 2010
VL 125
IS 3
BP E565
EP E569
DI 10.1542/peds.2008-2023
PG 5
WC Pediatrics
SC Pediatrics
GA 573WJ
UT WOS:000275945700045
PM 20142290
ER
PT J
AU Goswami, R
Haugan, TJ
Barnes, PN
Spanos, G
Holtz, RL
AF Goswami, R.
Haugan, T. J.
Barnes, P. N.
Spanos, G.
Holtz, R. L.
TI Effects of nanoscale defects on critical current density of
(Y1-xEux)Ba2Cu3O7-delta thin films
SO PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS
LA English
DT Article
DE Rare-earth substitution; Superconductors; Microstructure; Transmission
electron microscopy
ID YBA2CU3O7-DELTA; FIELD
AB In pulsed laser deposition of YBa2Cu3O7-delta films, defect introduction into the films tends to anisotropically improve the pinning along the H parallel to c direction due to the columnar growth mode of the process. In Eu-substituted samples, however, even though an increase in critical current density (J(c)) in the H parallel to c direction was observed for low fields (H = 0.2 T), the improvement was more notable for the H parallel to ab-plane at both low and higher fields. Herein we present detailed TEM microstructural studies to understand these new trends in J(c)(N), which are markedly different than flux pinning increases achieved with other methods, for example, with nanoparticle additions. Threading dislocations, observed in the Eu-substituted samples along the c-axis, account for J(c) enhancement with H parallel to c at low field. The enhanced ab-planar pinning in the Eu-substituted samples is attributed to the extensive bending of the {0 0 1} lattice planes throughout the film, and the crystal lattice defects with excess Cu-O planes, that were effective in increasing the J(c) for H parallel to ab at both low and high fields. (C) 2010 Elsevier B.V. All rights reserved.
C1 [Goswami, R.; Spanos, G.; Holtz, R. L.] USN, Res Lab, Washington, DC 20375 USA.
[Goswami, R.] SAIC, Washington, DC 20375 USA.
[Haugan, T. J.; Barnes, P. N.] USAF, Res Lab, Wright Patterson AFB, OH 45433 USA.
RP Goswami, R (reprint author), USN, Res Lab, Washington, DC 20375 USA.
EM ramasis.goswami@nrl.navy.mil
FU Office of Naval Research; Air Force Office of Scientific Research
FX The authors gratefully acknowledge the Office of Naval Research, and the
Air Force Office of Scientific Research for funding this research.
NR 19
TC 9
Z9 9
U1 2
U2 5
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0921-4534
J9 PHYSICA C
JI Physica C
PD MAR 1
PY 2010
VL 470
IS 5-6
BP 318
EP 322
DI 10.1016/j.physc.2010.01.057
PG 5
WC Physics, Applied
SC Physics
GA 613NX
UT WOS:000278987100003
ER
PT J
AU Friedman, AL
Chun, H
Jung, YJ
Heiman, D
Glaser, ER
Menon, L
AF Friedman, Adam L.
Chun, Hyunkyung
Jung, Yung Joon
Heiman, Don
Glaser, Evan R.
Menon, Latika
TI Possible room-temperature ferromagnetism in hydrogenated carbon
nanotubes
SO PHYSICAL REVIEW B
LA English
DT Article
ID GRAPHITE
AB We find that ferromagnetism can be induced in carbon nanotubes (CNTs) by introducing hydrogen. Multiwalled CNTs grown inside porous alumina templates contain a large density of defects resulting in significant hydrogen uptake when annealed at high temperatures. This hydrogen incorporation produces H-complex and adatom magnetism which generates a sizable ferromagnetic moment and a Curie temperature near T-C=1000 K. We studied the conditions for the incorporation of hydrogen, the temperature-dependent magnetic behavior, and the dependence of the ferromagnetism on the size of the nanotubes.
C1 [Friedman, Adam L.; Heiman, Don; Menon, Latika] Northeastern Univ, Dept Phys, Boston, MA 02115 USA.
[Friedman, Adam L.; Glaser, Evan R.] USN, Res Lab, Washington, DC 20375 USA.
[Chun, Hyunkyung; Jung, Yung Joon] Northeastern Univ, Dept Mech & Ind Engn, Boston, MA 02115 USA.
RP Friedman, AL (reprint author), Northeastern Univ, Dept Phys, Boston, MA 02115 USA.
RI Friedman, Adam/D-9610-2011; Jung, Yung Joon/L-2032-2013
OI Friedman, Adam/0000-0003-0597-5432;
FU NSF [ECCS 0551468]
FX This work was supported by the NSF Grant No. ECCS 0551468.
NR 17
TC 33
Z9 33
U1 0
U2 11
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD MAR
PY 2010
VL 81
IS 11
AR 115461
DI 10.1103/PhysRevB.81.115461
PG 4
WC Physics, Condensed Matter
SC Physics
GA 577UF
UT WOS:000276248800174
ER
PT J
AU Yang, HS
Cahill, DG
Liu, X
Feldman, JL
Crandall, RS
Sperling, BA
Abelson, JR
AF Yang, Ho-Soon
Cahill, David G.
Liu, X.
Feldman, J. L.
Crandall, R. S.
Sperling, B. A.
Abelson, J. R.
TI Anomalously high thermal conductivity of amorphous Si deposited by
hot-wire chemical vapor deposition
SO PHYSICAL REVIEW B
LA English
DT Article
ID RAMAN-SPECTRA; SILICON; QUALITY; MODEL; HEAT
AB The thermal conductivities of thin films of amorphous Si (a-Si) deposited by hot-wire chemical vapor deposition (HWCVD) are measured by time-domain thermoreflectance (TDTR). Amorphous Si samples prepared at the National Renewable Energy Laboratory (NREL) show an anomalous enhancement in thermal conductivity compared to other forms of a-Si and compared to the prediction of the model of the minimum thermal conductivity. The thermal conductivity of the NREL HWCVD a-Si samples also decreases with increasing frequency of the temperature fields used in the experiment. This frequency dependence of the thermal conductivity is nearly identical to the results of our previous studies of crystalline semiconductor alloys; a comparison of the frequency dependence to a phonon-scattering model suggests that Rayleigh-type scattering controls the mean-free path of similar to 5 meV phonons in this material. Amorphous Si films prepared at University of Illinois (U. Illinois) do not show an enhanced thermal conductivity even though Raman vibrational spectra of the U. Illinois and NREL samples are nearly identical. Thus, the thermal conductivity of a-Si depends on details of the microstructure that are not revealed by vibrational spectroscopy and measurements by TDTR provide a convenient method of identifying novel microstructures in amorphous materials.
C1 [Yang, Ho-Soon] Pusan Natl Univ, Dept Phys, Pusan 609735, South Korea.
[Cahill, David G.; Sperling, B. A.; Abelson, J. R.] Univ Illinois, Dept Mat Sci & Engn, Urbana, IL 61801 USA.
[Cahill, David G.] Univ Illinois, Mat Res Lab, Urbana, IL 61801 USA.
[Feldman, J. L.] USN, Res Lab, Ctr Computat Mat Sci, Washington, DC 20375 USA.
[Crandall, R. S.] Natl Renewable Energy Lab, Golden, CO 80401 USA.
[Feldman, J. L.] George Mason Univ, Dept Computat & Data Sci, Fairfax, VA 22030 USA.
RP Yang, HS (reprint author), Pusan Natl Univ, Dept Phys, Pusan 609735, South Korea.
EM d-cahill@uiuc.edu
RI Cahill, David/B-3495-2014
FU U. S. Department of Energy [DE-FG02-07ER46459, DE-FG02-07ER46453,
DE-FG02-07ER46471]; Korean Science and Engineering Foundation
[R01-2006-000-10742-0]; Office of Naval Research
FX This research was supported by the U. S. Department of Energy under
Award No. DE-FG02-07ER46459, by Grant No. R01-2006-000-10742-0 from the
Korean Science and Engineering Foundation, and the Office of Naval
Research. Experiments were carried out in the Laser and Spectroscopy
Laboratory of the Materials Research Laboratory at the University of
Illinois, which is partially supported by the U. S. Department of Energy
under Grants No. DE-FG02-07ER46453 and No. DE-FG02-07ER46471. We thank
Y. K. Koh for his help with the TDTR experiments and W. Wang for Raman
spectra at 785 nm.
NR 25
TC 31
Z9 31
U1 3
U2 8
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 MAR
PY 2010
VL 81
IS 10
AR 104203
DI 10.1103/PhysRevB.81.104203
PG 7
WC Physics, Condensed Matter
SC Physics
GA 577UE
UT WOS:000276248700050
ER
PT J
AU Niles, SP
Blau, J
Colson, WB
AF Niles, S. P.
Blau, J.
Colson, W. B.
TI Hermite-Gaussian decomposition of free electron laser optical fields
SO PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS
LA English
DT Article
AB Free electron lasers (FELs) are favored in many research applications due to their ability to operate primarily in the fundamental (Gaussian) mode. In oscillator FELs, the appropriate basis set for decomposition is uniquely determined by the cavity parameters. Since FEL amplifiers generate and amplify the optical field over the length of the undulator influenced only by the electron beam, the appropriate basis set is not uniquely determined. A methodology is presented to decompose the optical fields with a Hermite-Gaussian basis set chosen such that the number of higher-order modes is minimized. The methodology is used to study amplifier FEL optical beams for comparison with experiment.
C1 [Niles, S. P.; Blau, J.; Colson, W. B.] USN, Postgrad Sch, Monterey, CA 93940 USA.
RP Niles, SP (reprint author), USN, Postgrad Sch, Monterey, CA 93940 USA.
EM spniles@nps.edu; blau@nps.edu; wbcolson@nps.edu
FU Office of Naval Research and the High Energy Laser Joint Technology
Office
FX This work was supported by the Office of Naval Research and the High
Energy Laser Joint Technology Office.
NR 8
TC 1
Z9 1
U1 1
U2 2
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-4402
J9 PHYS REV SPEC TOP-AC
JI Phys. Rev. Spec. Top.-Accel. Beams
PD MAR
PY 2010
VL 13
IS 3
AR 030702
DI 10.1103/PhysRevSTAB.13.030702
PG 6
WC Physics, Nuclear; Physics, Particles & Fields
SC Physics
GA 576ZR
UT WOS:000276189500003
ER
PT J
AU Aristoff, JM
Truscott, TT
Techet, AH
Bush, JWM
AF Aristoff, Jeffrey M.
Truscott, Tadd T.
Techet, Alexandra H.
Bush, John W. M.
TI The water entry of decelerating spheres
SO PHYSICS OF FLUIDS
LA English
DT Article
ID CAVITY DYNAMICS; SURFACE; DISKS
AB We present the results of a combined experimental and theoretical investigation of the vertical impact of low-density spheres on a water surface. Particular attention is given to characterizing the sphere dynamics and the influence of its deceleration on the shape of the resulting air cavity. A theoretical model is developed which yields simple expressions for the pinch-off time and depth, as well as the volume of air entrained by the sphere. Theoretical predictions compare favorably with our experimental observations, and allow us to rationalize the form of water-entry cavities resulting from the impact of buoyant and nearly buoyant spheres. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3309454]
C1 [Aristoff, Jeffrey M.] Princeton Univ, Dept Mech & Aerosp Engn, Princeton, NJ 08544 USA.
[Truscott, Tadd T.] USN, Undersea Warfare Ctr, Newport, RI 02841 USA.
[Techet, Alexandra H.] MIT, Dept Mech Engn, Cambridge, MA 02139 USA.
[Bush, John W. M.] MIT, Dept Math, Cambridge, MA 02139 USA.
RP Aristoff, JM (reprint author), Princeton Univ, Dept Mech & Aerosp Engn, Princeton, NJ 08544 USA.
FU National Science Foundation [CTS-0624830]; Office of Naval Research
University Laboratory Initiative [N00014-06-1-0445]
FX J.W.M.B. gratefully acknowledges the financial support of the National
Science Foundation through Grant No. CTS-0624830; J.M.A. acknowledges
the National Science Foundation Graduate Research Fellowship Program; A.
H. T. and T. T. T. acknowledge the Office of Naval Research University
Laboratory Initiative under Grant No. N00014-06-1-0445.
NR 21
TC 30
Z9 31
U1 5
U2 29
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 1070-6631
J9 PHYS FLUIDS
JI Phys. Fluids
PD MAR
PY 2010
VL 22
IS 3
AR 032102
DI 10.1063/1.3309454
PG 8
WC Mechanics; Physics, Fluids & Plasmas
SC Mechanics; Physics
GA 577HC
UT WOS:000276212200010
ER
PT J
AU Roberts, NC
AF Roberts, Nancy C.
TI Spanning "Bleeding" Boundaries: Humanitarianism, NGOs, and the
Civilian-Military Nexus in the Post-Cold War Era
SO PUBLIC ADMINISTRATION REVIEW
LA English
DT Article
AB How do nongovernmental (NGO), international (IO), and military organizations cope with their dependencies and address their perceptual and real differences in order to coordinate their field operations? This question is addressed through the creation of a matrix grouping civilian (NGOs and IOs) and military operations into four general types: peacekeeping; disaster relief; complex humanitarian emergencies/warfare; and stabilization and reconstruction. Second, using Galbraith's information processing approach to organizational design, a range of formal coordination mechanisms that organizations use at the strategic and operational levels to help them cope with their dependencies in different field operations is identified. Third, the author underscores how communities of practice are emerging as informal mechanisms of coordination among civilian and military organizations. And finally, a framework of organizational forms that views communities of practice as an alternative to hierarchy and markets is offered. Believing communities of practice hold the most promise for coordination in the human security domain when hierarchies are politically untenable and markets lack accountability, the author concludes with implications for interorganization coordination research and practice.
C1 Naval Postgrad Sch, CORE Lab, Def Anal Dept, Grad Sch Operat & Informat Sci, Monterey, CA USA.
RP Roberts, NC (reprint author), Naval Postgrad Sch, CORE Lab, Def Anal Dept, Grad Sch Operat & Informat Sci, Monterey, CA USA.
EM nroberts@nps.edu
NR 64
TC 3
Z9 3
U1 4
U2 25
PU WILEY-BLACKWELL PUBLISHING, INC
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 0033-3352
J9 PUBLIC ADMIN REV
JI Public Adm. Rev.
PD MAR-APR
PY 2010
VL 70
IS 2
BP 212
EP 222
PG 11
WC Public Administration
SC Public Administration
GA 554SJ
UT WOS:000274454400004
ER
PT J
AU Kiefer, D
Keeler, S
Cremer, M
Chawla, K
Lerner, V
Hanna, N
AF Kiefer, Daniel
Keeler, Sean
Cremer, Miriam
Chawla, Kiranpreet
Lerner, Veronica
Hanna, Nazeeh
TI New Model Leading to Preterm Delivery: The Role of Exposure to
Environmental Toxins
SO REPRODUCTIVE SCIENCES
LA English
DT Meeting Abstract
CT 57th Annual Meeting of the Society-for-Gynecologic-Investigation
CY MAR 24-27, 2010
CL Orlando, FL
SP Soc Gynecol Investigat
C1 [Kiefer, Daniel; Hanna, Nazeeh] Winthrop Univ Hosp, Mineola, NY 11501 USA.
[Chawla, Kiranpreet; Lerner, Veronica] NYU, Sch Med, New York, NY USA.
[Cremer, Miriam] Mt Sinai Sch Med, New York, NY USA.
[Keeler, Sean] USN, Med Ctr, Portsmouth, VA USA.
NR 0
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 1933-7191
J9 REPROD SCI
JI Reprod. Sci.
PD MAR
PY 2010
VL 17
IS 3
SU S
MA 371
BP 170A
EP 170A
PG 1
WC Obstetrics & Gynecology; Reproductive Biology
SC Obstetrics & Gynecology; Reproductive Biology
GA 568XE
UT WOS:000275558600370
ER
PT J
AU Johnson, BJ
Melde, BJ
Thomas, C
Malanoski, AP
Leska, IA
Charles, PT
Parrish, DA
Deschamps, JR
AF Johnson, Brandy J.
Melde, Brian J.
Thomas, Cassandra
Malanoski, Anthony P.
Leska, Iwona A.
Charles, Paul T.
Parrish, Damon A.
Deschamps, Jeffrey R.
TI Fluorescent Silicate Materials for the Detection of Paraoxon
SO SENSORS
LA English
DT Article
DE mesoporous; organosilica; fluorescence; porphyrin; hierarchical;
detection; organophosphate
ID HIGH-PERFORMANCE LIQUID; SOL-GEL METHOD; MESOPOROUS SILICA; NANOPOROUS
ORGANOSILICAS; MOLECULAR-COMPLEXES; PORPHYRIN COMPLEXES; TNT DETECTION;
ADSORPTION; OXYGEN; FILMS
AB Porphyrins are a family of highly conjugated molecules that strongly absorb visible light and fluoresce intensely. These molecules are sensitive to changes in their immediate environment and have been widely described for optical detection applications. Surfactant-templated organosilicate materials have been described for the semi-selective adsorption of small molecule contaminants. These structures offer high surface areas and large pore volumes within an organized framework. The organic bridging groups in the materials can be altered to provide varied binding characteristics. This effort seeks to utilize the tunable binding selectivity, high surface area, and low materials density of these highly ordered pore networks and to combine them with the unique spectrophotometric properties of porphyrins. In the porphyrin-embedded materials (PEMs), the organosilicate scaffold stabilizes the porphyrin and facilitates optimal orientation of porphyrin and target. The materials can be stored under ambient conditions and offer exceptional shelf-life. Here, we report on the design of PEMs with specificity for organophosphates and compounds of similar structure.
C1 [Johnson, Brandy J.; Melde, Brian J.; Thomas, Cassandra; Malanoski, Anthony P.; Charles, Paul T.; Parrish, Damon A.; Deschamps, Jeffrey R.] USN, Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 USA.
[Leska, Iwona A.] NOVA Res Inc, Alexandria, VA 22308 USA.
RP Johnson, BJ (reprint author), USN, Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 USA.
EM brandy.white@nrl.navy.mil; brian.melde@nrl.navy.mil;
cassandrathomas06@yahoo.com; anthony.malanoski@nrl.navy.mil;
iwona.leska.ctr@nrl.navy.mil; paul.charles@nrl.navy.mil;
damon.parrish@nrl.navy.mil; jeff.deschamps@nrl.navy.mil
RI Malanoski, Anthony/C-7814-2011; Johnson, Brandy/B-3462-2008;
OI Malanoski, Anthony/0000-0001-6192-888X; Johnson,
Brandy/0000-0002-3637-0631; Deschamps, Jeffrey/0000-0001-5845-0010
FU U.S. Naval Research Laboratory [NRL 6.1 WU 69-8765]; U.S. DoD Strategic
Environmental Research and Development Program [ER-1604]; U.S. Defense
Threat Reduction Agency [BA08PRO015]; U.S. Navy; U.S. Department of
Defense; U.S. Government
FX C. Thomas participated in this effort as part of a National Science
Foundation (NSF) sponsored NRL HBCU/MI/TCU summer internship. We have
applied the SDC approach ("sequence-determinescredit") for determining
the sequence of authors [45]. This research was sponsored by the U.S.
Naval Research Laboratory (NRL 6.1 WU#69-8765), U.S. DoD Strategic
Environmental Research and Development Program (SERDP; ER-1604), and the
U.S. Defense Threat Reduction Agency (DTRA; BA08PRO015). The views
expressed here are those of the authors and do not represent those of
the U.S. Navy, the U.S. Department of Defense, or the U.S. Government.
NR 45
TC 20
Z9 20
U1 2
U2 5
PU MDPI AG
PI BASEL
PA POSTFACH, CH-4005 BASEL, SWITZERLAND
SN 1424-8220
J9 SENSORS-BASEL
JI Sensors
PD MAR
PY 2010
VL 10
IS 3
BP 2315
EP 2331
DI 10.3390/s100302315
PG 17
WC Chemistry, Analytical; Electrochemistry; Instruments & Instrumentation
SC Chemistry; Electrochemistry; Instruments & Instrumentation
GA 589NY
UT WOS:000277158300050
PM 22294928
ER
PT J
AU Evans, JS
Strickland, DJ
Woo, WK
McMullin, DR
Plunkett, SP
Viereck, RA
Hill, SM
Woods, TN
Eparvier, FG
AF Evans, J. S.
Strickland, D. J.
Woo, W. K.
McMullin, D. R.
Plunkett, S. P.
Viereck, R. A.
Hill, S. M.
Woods, T. N.
Eparvier, F. G.
TI Early Observations by the GOES-13 Solar Extreme Ultraviolet Sensor
(EUVS)
SO SOLAR PHYSICS
LA English
DT Article
ID PHOTOMETER SYSTEM XPS; II SOLSTICE-II; IRRADIANCE VARIABILITY;
UPPER-ATMOSPHERE; CALIBRATIONS; MODEL; THERMOSPHERE; TRANSMISSION;
CELIAS/SEM; DYNAMICS
AB NOAA's GOES-13 satellite, launched in May 2006, includes a new solar sensor, called EUVS (Extreme UltraViolet Sensor), that measures energy fluxes in five broad-band spectral channels that span the region from 1 to 130 nm. Here, we report on measurements made during the mission's six-month post-launch test (PLT) period which provided nearly continuous observations from August through November 2006 and the recording of an X9 flare that occurred on 5 December 2006. In this paper, we present a calibration model for the GOES EUVS that incorporates the effects of pointing offsets, cross-disk radiance variability (radiance refers to partial-disk emission), and changes to assumed spectral shapes. Appendices are included that report on the sensitivity to these effects. The main body of the paper gives a description of the model and data recorded during the PLT period. Comparisons are made with time-coincident measurements from TIMED/SEE (Version 10.02), SOHO/SEM, and SORCE/ SOLSTICE for the time period August-November. Comparisons are made with SORCE/XPS for the 5 December flare. In general, there is agreement among the data sets within expected measurement uncertainties. There will be a series of EUVSs extending into the next generation of GOES (starting with GOES-13). The initial performance of GOES-13 EUVS, including 5-channel measurements approximately every 11 s on a nearly continuous basis, suggests that the EUVS series will play a key role over the next many years in monitoring solar EUV variability.
C1 [Evans, J. S.; Strickland, D. J.; Woo, W. K.] Computat Phys Inc, Springfield, VA 22151 USA.
[McMullin, D. R.] Space Syst Res Corp, Alexandria, VA 22314 USA.
[Plunkett, S. P.] USN, Res Lab, Washington, DC 20375 USA.
[Viereck, R. A.; Hill, S. M.] NOAA, Space Weather Predict Ctr, Boulder, CO 80305 USA.
[Woods, T. N.; Eparvier, F. G.] Univ Colorado, Lab Atmospher & Space Phys, Boulder, CO 80303 USA.
RP Evans, JS (reprint author), Computat Phys Inc, 8001 Braddock Rd,Suite 210, Springfield, VA 22151 USA.
EM evans@cpi.com
NR 34
TC 7
Z9 7
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 2010
VL 262
IS 1
BP 71
EP 115
DI 10.1007/s11207-009-9491-x
PG 45
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 557RT
UT WOS:000274688500006
ER
PT J
AU Johnson, M
AF Johnson, Mark
TI Spin caloritronics and the thermomagnetoelectric system
SO SOLID STATE COMMUNICATIONS
LA English
DT Article
DE Magnetic films and multilayers; Thermodynamic properties; Spin dynamics
ID INJECTION
AB The methods of nonequilibrium thermodynamics are applied to study the transport of charge, heat and nonequilibrium spin magnetization in a discrete system comprised of a ferromagnetic metal making interfacial contact with a nonmagnetic metal. A thermomagnetic effect relating spin accumulation to an interfacial difference of temperature is described. Temperature gradients related to spin relaxation are discussed. Some recent experimental results are reviewed using the framework provided by the thermomagnetoelectric system. Published by Elsevier Ltd
C1 USN, Res Lab, Washington, DC 20375 USA.
RP Johnson, M (reprint author), USN, Res Lab, Mail Code 6360-1,4555 Overlook Av SW, Washington, DC 20375 USA.
EM mark.b.johnson@nrl.navy.mil
RI Riminucci, Alberto/D-7525-2011
OI Riminucci, Alberto/0000-0003-0976-1810
FU Office of Naval Research
FX The author gratefully acknowledges the support of the Office of Naval
Research.
NR 13
TC 13
Z9 14
U1 2
U2 19
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0038-1098
J9 SOLID STATE COMMUN
JI Solid State Commun.
PD MAR
PY 2010
VL 150
IS 11-12
SI SI
BP 543
EP 547
DI 10.1016/j.ssc.2009.10.027
PG 5
WC Physics, Condensed Matter
SC Physics
GA 580GK
UT WOS:000276435600020
ER
PT J
AU Oates, DE
Agassi, YD
Moeckly, BH
AF Oates, D. E.
Agassi, Y. D.
Moeckly, B. H.
TI Microwave measurements of MgB2: implications for applications and
order-parameter symmetry
SO SUPERCONDUCTOR SCIENCE & TECHNOLOGY
LA English
DT Article; Proceedings Paper
CT 9th European Conference on Applied Superconductivity (EUCAS'09)
CY SEP 13-17, 2009
CL Dresden, GERMANY
ID INTERMODULATION; NONLINEARITY; DEPENDENCE; YBCO
AB We present measurements of the microwave properties of high-quality thin films of MgB2 deposited by reactive evaporation on both dielectric and metallic substrates. The measurements include those of the surface impedance and the intermodulation distortion (IMD), both as a function of microwave power at temperatures from 1.8 to 35 K. A stripline resonator at 2 GHz is used for the measurements on dielectric substrates and a dielectric resonator at 10.7 GHz is used for the films on metallic substrates. The surface resistance of the MgB2 is lower than that of our sputtered niobium films, and no power dependence was observed up to surface radio-frequency magnetic fields of 400 Oe at 5 K. The temperature dependence of the IMD at low circulating power shows an increase at temperatures T < 10 K that cannot be explained on the basis of s-wave symmetry of the order parameter in both energy gaps. Within the gap-symmetry constraints of the hexagonal crystal symmetry of MgB2, the best fit with our IMD and penetration depth measurements is obtained for the pi-gap symmetry given by Delta(phi, T) = Delta(0)(T) sin(6 phi), where phi is the azimuthal angle in the ab plane, and Delta(0)(T) is a weakly temperature dependent amplitude at low temperatures. This symmetry entails there being six nodal lines.
C1 [Oates, D. E.] MIT, Lincoln Lab, Lexington, MA 02420 USA.
[Agassi, Y. D.] USN, Surface Warfare Ctr, Carderock Div, Bethesda, MD 20817 USA.
[Moeckly, B. H.] Superconductor Technol Inc, Santa Barbara, CA 93111 USA.
RP Oates, DE (reprint author), MIT, Lincoln Lab, Lexington, MA 02420 USA.
EM oates@ll.mit.edu
NR 16
TC 7
Z9 7
U1 2
U2 7
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0953-2048
J9 SUPERCOND SCI TECH
JI Supercond. Sci. Technol.
PD MAR
PY 2010
VL 23
IS 3
AR 034011
DI 10.1088/0953-2048/23/3/034011
PG 5
WC Physics, Applied; Physics, Condensed Matter
SC Physics
GA 559DH
UT WOS:000274800500012
ER
PT J
AU McClatchey, SK
Hofmeister, EM
AF McClatchey, Scott K.
Hofmeister, Elizabeth M.
TI The Optics of Alphakic and Pseudophakic Eyes in Childhood
SO SURVEY OF OPHTHALMOLOGY
LA English
DT Review
DE children; intraocular lens; myopia; optics; pseudophakia; refraction
ID INTRAOCULAR-LENS IMPLANTATION; MYOPIC SHIFT; PEDIATRIC PSEUDOPHAKIA;
REFRACTIVE OUTCOMES; AXIAL ELONGATION; 1ST YEAR; CATARACT; AGE
AB The growth of the eye results ill a myopic shift in aphakic and pseudophakic eyes during childhood. Cataract surgery after the age of 6 months, with Or Without lens implantation, appears to have little effect Oil the rate of refractive growth. Most children with pseudophakia have a large amount of myopic shift.. This myopic shift is greatest in children with surgery at younger ages. It is also greater in eyes With high-power intraocular lenses Clue to an Optical phenomenon analogous to the effect of Vertex distance. The amount of myopic shift and the Variance in rate of refractive growth can be predicted using an empiric, logarithmic model. We describe a revision of this logarithmic model to extend it patients with surgery before 3 months of age. We also analyze the variance in the rate of refractive growth, based on data from pseudophakic children with the longest follow-up in proportion to age. (Surv Ophthalmol 55:174-182, 2010. (C) 2010 Elsevier Inc. All rights reserved.)
C1 USN, Med Ctr, Dept Ophthalmol, San Diego, CA 92134 USA.
Uniformed Serv Univ Hlth Sci, Dept Surg, Bethesda, MD 20814 USA.
Loma Linda Univ, Dept Ophthalmol, Loma Linda, CA 92350 USA.
RP McClatchey, SK (reprint author), USN, San Diego Med Ctr, Ophthalmol Suite 202,34520 Bob Wilson Dr, San Diego, CA 92134 USA.
EM Scott.McClatchey@med.navy.mil
NR 21
TC 16
Z9 16
U1 0
U2 2
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 0039-6257
J9 SURV OPHTHALMOL
JI Surv. Ophthalmol.
PD MAR-APR
PY 2010
VL 55
IS 2
BP 174
EP 182
DI 10.1016/j.survophthal.2009.07.001
PG 9
WC Ophthalmology
SC Ophthalmology
GA 564KA
UT WOS:000275211700007
PM 19786290
ER
PT J
AU O'Guinn, ML
Klein, TA
Lee, JS
Richards, AL
Kim, HC
Ha, SJ
Shim, SH
Baek, LJ
Song, KJ
Chong, ST
Turell, MJ
Burkett, DA
Schuster, A
Lee, IY
Yi, SH
Sames, WJ
Song, JW
AF O'Guinn, Monica L.
Klein, Terry A.
Lee, John S.
Richards, Allen L.
Kim, Heung-Chul
Ha, Si Jung
Shim, So Hee
Baek, Luck Ju
Song, Ki-Joon
Chong, Sung-Tae
Turell, Michael J.
Burkett, Douglas A.
Schuster, Anthony
Lee, In-Yong
Yi, Suk-Hee
Sames, William J.
Song, Jin-Won
TI Serological Surveillance of Scrub Typhus, Murine Typhus, and
Leptospirosis in Small Mammals Captured at Firing Points 10 and 60,
Gyeonggi Province, Republic of Korea, 2001-2005
SO VECTOR-BORNE AND ZOONOTIC DISEASES
LA English
DT Article
DE Apodemus; Crocidura; insectivores; leptospirosis; Micromys; Microtus;
murine typhus; Myodes; Orientia; Rattus; Rickettsia; rodents; scrub
typhus; Tscherskia
ID POLYMERASE-CHAIN-REACTION; SPOTTED-FEVER GROUP;
RICKETTSIA-TSUTSUGAMUSHI; CLINICAL-DIAGNOSIS; RAPID DIAGNOSIS;
INFECTION; DISEASE; RODENTS; THAILAND; HUMANS
AB Soldiers from the Republic of Korea and the United States conducting peacetime military operations at various training sites and multiple range complexes located near the demilitarized zone separating North and South Korea are exposed to rodents and their potentially disease-carrying ectoparasites. These diseases include scrub typhus, murine typhus, and leptospirosis. Many of the training sites are rural or semi-rural, surrounded or co-located with various forms of agriculture, and are infested with rodents and insectivores (as well as their ectoparasites), which are commonly found in association with unmanaged tall grasses, scrub, and crawling vegetation habitats. For 5 years, rodents and insectivores were collected seasonally (spring, summer, fall, and winter) at firing points 10 and 60 near the demilitarized zone and serologically tested for the presence of scrub typhus, murine typhus, and leptospirosis antibodies. Of the nine species of small mammals collected, Apodemus agrarius, the common striped field mouse and known reservoir of scrub typhus, was the most frequently collected (90.6%). Only four of the nine species captured, A. agrarius (60.9%), Micromys minutus (100%), Mus musculus (55.6%), and Rattus norvegicus (46.7%), were positive for scrub typhus. Of all the small mammals captured, only A. agrarius was positive for murine typhus (0.3%) and leptospirosis (1.3%). Seasonal and annual prevalence rates based on weight and sex are presented.
C1 [Ha, Si Jung; Shim, So Hee; Baek, Luck Ju; Song, Ki-Joon; Song, Jin-Won] Korea Univ, Dept Microbiol, Coll Med, Inst Viral Dis, Seoul 136705, South Korea.
[Ha, Si Jung; Shim, So Hee; Baek, Luck Ju; Song, Ki-Joon; Song, Jin-Won] Korea Univ, Dept Microbiol, Coll Med, Bank Pathogen Viruses, Seoul 136705, South Korea.
[O'Guinn, Monica L.; Lee, John S.; Turell, Michael J.] USA, Med Res Inst Infect Dis, Div Virol, Ft Detrick, MD 21702 USA.
[Klein, Terry A.; Yi, Suk-Hee; Sames, William J.] Force Hlth Protect 18th Med Command, Unit 15281, APO, AP 96205 USA.
[Richards, Allen L.] USN, Med Res Ctr, Viral & Rickettsial Dis Dept, Silver Spring, MD USA.
[Kim, Heung-Chul; Chong, Sung-Tae] 18th Med Command, Unit 15247, APO, AP 96205 USA.
[Burkett, Douglas A.] AF Inst Operat Hlth, Human Syst Wing 311, Unit 5213, Kadena AFB, Okinawa, Japan.
[Schuster, Anthony] Ctr Hlth Promot & Prevent Med S, Atlanta, GA USA.
[Lee, In-Yong] Yonsei Univ, Coll Med, Dept Environm Med Biol, Seoul, South Korea.
RP Song, JW (reprint author), Korea Univ, Dept Microbiol, Coll Med, Inst Viral Dis, 126-1,5Ka Anam Dong, Seoul 136705, South Korea.
EM jwsong@korea.ac.kr
RI Valle, Ruben/A-7512-2013
FU U.S. Department of Defense Global Emerging Infections Surveillance and
Response System, Silver Spring, MD; Armed Forces Medical Intelligence
Center, Fort Detrick, MD
FX Funding for portions of this work was provided by the U.S. Department of
Defense Global Emerging Infections Surveillance and Response System,
Silver Spring, MD, and the Armed Forces Medical Intelligence Center,
Fort Detrick, MD.
NR 71
TC 11
Z9 11
U1 1
U2 3
PU MARY ANN LIEBERT INC
PI NEW ROCHELLE
PA 140 HUGUENOT STREET, 3RD FL, NEW ROCHELLE, NY 10801 USA
SN 1530-3667
J9 VECTOR-BORNE ZOONOT
JI Vector-Borne Zoonotic Dis.
PD MAR
PY 2010
VL 10
IS 2
BP 125
EP 133
DI 10.1089/vbz.2008.0123
PG 9
WC Public, Environmental & Occupational Health; Infectious Diseases
SC Public, Environmental & Occupational Health; Infectious Diseases
GA 575PS
UT WOS:000276080100004
PM 19402761
ER
PT J
AU Qi, H
Alexson, D
Glembocki, O
Prokes, SM
AF Qi, Hua
Alexson, Dimitri
Glembocki, Orest
Prokes, S. M.
TI Plasmonic coupling on dielectric nanowire core-metal sheath composites
SO NANOTECHNOLOGY
LA English
DT Article
ID ENHANCED RAMAN-SCATTERING; SINGLE-MOLECULE; SERS; NANOPARTICLES;
SPECTROSCOPY; ARRAYS; PHTHALOCYANINE; FABRICATION; COLLOIDS; FILMS
AB We have developed dielectric core/metal sheath nanowire (NW) composites for surface-enhanced Raman scattering (SERS), in which an electroless (EL) Ag plating approach was employed. The NW surface was uniformly covered with a high density of 3D silver islands, having a diameter in the 20-30 nm range and spaced less than approximate to 10 nm apart. In comparison with the silver deposition via e-beam evaporation, the EL coating approach has the advantage of full metal coverage of the NWs. This approach also provides a fast and simple way to completely cover any nanostructures with Ag, including nanowires, regardless of the orientation or shape. SERS measurements were performed using benzene thiol and the SERS signal strength of the EL-coated NW composites was significantly greater than expected, since the surface plasmon resonance (SPR) of 20 nm Ag nanospheres is weak and in the UV, while our measurements were performed using a 514.5 nm laser line. However, we have modeled this system using our electric field calculations and the results indicate that the strong SERS signal is due to plasmonic coupling of neighboring closely spaced islands, as well as an enhanced substrate effect. In addition, the nanowire core serves as a template for the formation of these small, closely spaced Ag islands, resulting in the strong SERS signal.
C1 [Qi, Hua; Alexson, Dimitri; Glembocki, Orest; Prokes, S. M.] USN, Res Lab, Div Elect Sci & Technol, Washington, DC 20375 USA.
RP Qi, H (reprint author), USN, Res Lab, Div Elect Sci & Technol, Washington, DC 20375 USA.
EM huaqi@ccs.nrl.navy.mil; Prokes@estd.nrl.navy.mil
FU Office of Naval Research (ONR); American Society for Engineering
Education (ASEE)
FX This work was partially supported by the Office of Naval Research (ONR).
HQ thanks the American Society for Engineering Education (ASEE) program
for administrative support. Dr Mazeina is thanked for helpful nanowire
growth and discussion.
NR 32
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Z9 23
U1 0
U2 17
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0957-4484
J9 NANOTECHNOLOGY
JI Nanotechnology
PD FEB 26
PY 2010
VL 21
IS 8
AR 085705
DI 10.1088/0957-4484/21/8/085705
PG 5
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary;
Physics, Applied
SC Science & Technology - Other Topics; Materials Science; Physics
GA 548LT
UT WOS:000273965000015
PM 20097974
ER
PT J
AU Tsoi, S
Griva, I
Trammell, SA
Kedziora, G
Schnur, JM
Lebedev, N
AF Tsoi, Stanislav
Griva, Igor
Trammell, Scott A.
Kedziora, Gary
Schnur, Joel M.
Lebedev, Nikolai
TI Observation of two discrete conductivity states in
quinone-oligo(phenylene vinylene)
SO NANOTECHNOLOGY
LA English
DT Article
ID SCANNING-TUNNELING-MICROSCOPY; SELF-ASSEMBLED MONOLAYERS; ATOMIC-FORCE
MICROSCOPY; SINGLE-MOLECULE; ELECTRON-TRANSPORT; REDOX MOLECULES;
CONTROLLED CONDUCTANCE; JUNCTIONS; TRANSISTOR; DEPENDENCE
AB The single-molecule conductivity of quinone-oligo(phenylene vinylene) (Q-OPV) attached to a gold substrate was studied using electrochemical scanning tunnelling microscopy. The results show that the molecule has two discrete conductivity states: a low-conductivity state, when it is oxidized, and a high-conductivity state, when reduced. The electron transport through the molecule in both states occurs via coherent tunnelling. The molecular conductivity in either oxidation state is independent from the electrochemical gate potential; however, the gate potential can be used to switch the oxidation state of the molecule. Numerical calculations suggest that the highest occupied molecular orbital (HOMO) of Q-OPV controls tunnelling through the molecule and that the independence of conductivity from the electrochemical gate in either oxidation state originates from strong penetration of HOMO into the substrate. In addition, the greater delocalization of HOMO in the reduced state than in the oxidized state explains the greater conductivity of Q-OPV in the former than in the latter.
C1 [Tsoi, Stanislav; Trammell, Scott A.; Lebedev, Nikolai] USN, Res Lab, Ctr Biomol Sci & Engn, Washington, DC 20375 USA.
[Griva, Igor] George Mason Univ, Dept Math Sci, Fairfax, VA 22030 USA.
[Griva, Igor] George Mason Univ, Dept Computat & Data Sci, Fairfax, VA 22030 USA.
[Kedziora, Gary] High Performance Technol, Wright Patterson AFB, OH 45433 USA.
[Schnur, Joel M.] George Mason Univ, Coll Sci, Fairfax, VA 22030 USA.
RP Tsoi, S (reprint author), USN, Res Lab, Ctr Biomol Sci & Engn, Washington, DC 20375 USA.
EM stsoi@cbmse.nrl.navy.mil; nlebedev@cbmse.nrl.navy.mil
FU NRL NanoScience Institute; DoD HPCMP
FX This work was supported in parts by NRL NanoScience Institute and the
Office of Naval Research via the NRL base programme. The computational
work was supported by the DoD HPCMP.
NR 40
TC 5
Z9 5
U1 0
U2 13
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 0957-4484
J9 NANOTECHNOLOGY
JI Nanotechnology
PD FEB 26
PY 2010
VL 21
IS 8
AR 085704
DI 10.1088/0957-4484/21/8/085704
PG 7
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary;
Physics, Applied
SC Science & Technology - Other Topics; Materials Science; Physics
GA 548LT
UT WOS:000273965000014
PM 20097971
ER
PT J
AU Abdo, AA
Ackermann, M
Ajello, M
Baldini, L
Ballet, J
Barbiellini, G
Baring, MG
Bastieri, D
Baughman, BM
Bechtol, K
Bellazzini, R
Berenji, B
Blandford, RD
Bloom, ED
Bonamente, E
Borgland, AW
Bregeon, J
Brez, A
Brigida, M
Bruel, P
Burnett, TH
Buson, S
Caliandro, GA
Cameron, RA
Caraveo, PA
Casandjian, JM
Cecchi, C
Celik, O
Chekhtman, A
Cheung, CC
Chiang, J
Ciprini, S
Claus, R
Cognard, I
Cohen-Tanugi, J
Cominsky, LR
Conrad, J
Cutini, S
Dermer, CD
de Angelis, A
de Palma, F
Digel, SW
Silva, EDE
Drell, PS
Dubois, R
Dumora, D
Espinoza, C
Farnier, C
Favuzzi, C
Fegan, SJ
Focke, WB
Fortin, P
Frailis, M
Fukazawa, Y
Funk, S
Fusco, P
Gargano, F
Gasparrini, D
Gehrels, N
Germani, S
Giavitto, G
Giebels, B
Giglietto, N
Giordano, F
Glanzman, T
Godfrey, G
Grenier, IA
Grondin, MH
Grove, JE
Guillemot, L
Guiriec, S
Hanabata, Y
Harding, AK
Hayashida, M
Hays, E
Hughes, RE
Jackson, MS
Johannesson, G
Johnson, AS
Johnson, TJ
Johnson, WN
Kamae, T
Katagiri, H
Kataoka, J
Katsuta, J
Kawai, N
Kerr, M
Knodlseder, J
Kocian, ML
Kramer, M
Kuss, M
Lande, J
Latronico, L
Lemoine-Goumard, M
Longo, F
Loparco, F
Lott, B
Lovellette, MN
Lubrano, P
Lyne, AG
Madejski, GM
Makeev, A
Mazziotta, MN
McEnery, JE
Meurer, C
Michelson, PF
Mitthumsiri, W
Mizuno, T
Monte, C
Monzani, ME
Morselli, A
Moskalenko, IV
Murgia, S
Nakamori, T
Nolan, PL
Norris, JP
Noutsos, A
Nuss, E
Ohsugi, T
Omodei, N
Orlando, E
Ormes, JF
Paneque, D
Parent, D
Pelassa, V
Pepe, M
Pesce-Rollins, M
Piron, F
Porter, TA
Raino, S
Rando, R
Razzano, M
Reimer, A
Reimer, O
Reposeur, T
Rochester, LS
Rodriguez, AY
Romani, RW
Roth, M
Ryde, F
Sadrozinski, HFW
Sanchez, D
Sander, A
Parkinson, PMS
Scargle, JD
Sgro, C
Siskind, EJ
Smith, DA
Smith, PD
Spandre, G
Spinelli, P
Stappers, BW
Stecker, FW
Strickman, MS
Suson, DJ
Tajima, H
Takahashi, H
Takahashi, T
Tanaka, T
Thayer, JB
Thayer, JG
Theureau, G
Thompson, DJ
Tibaldo, L
Tibolla, O
Torres, DF
Tosti, G
Tramacere, A
Uchiyama, Y
Usher, TL
Vasileiou, V
Venter, C
Vilchez, N
Vitale, V
Waite, AP
Wang, P
Winer, BL
Wood, KS
Yamazaki, R
Ylinen, T
Ziegler, M
AF Abdo, A. A.
Ackermann, M.
Ajello, M.
Baldini, L.
Ballet, J.
Barbiellini, G.
Baring, M. G.
Bastieri, D.
Baughman, B. M.
Bechtol, K.
Bellazzini, R.
Berenji, B.
Blandford, R. D.
Bloom, E. D.
Bonamente, E.
Borgland, A. W.
Bregeon, J.
Brez, A.
Brigida, M.
Bruel, P.
Burnett, T. H.
Buson, S.
Caliandro, G. A.
Cameron, R. A.
Caraveo, P. A.
Casandjian, J. M.
Cecchi, C.
Celik, Oe.
Chekhtman, A.
Cheung, C. C.
Chiang, J.
Ciprini, S.
Claus, R.
Cognard, I.
Cohen-Tanugi, J.
Cominsky, L. R.
Conrad, J.
Cutini, S.
Dermer, C. D.
de Angelis, A.
de Palma, F.
Digel, S. W.
do Couto e Silva, E.
Drell, P. S.
Dubois, R.
Dumora, D.
Espinoza, C.
Farnier, C.
Favuzzi, C.
Fegan, S. J.
Focke, W. B.
Fortin, P.
Frailis, M.
Fukazawa, Y.
Funk, S.
Fusco, P.
Gargano, F.
Gasparrini, D.
Gehrels, N.
Germani, S.
Giavitto, G.
Giebels, B.
Giglietto, N.
Giordano, F.
Glanzman, T.
Godfrey, G.
Grenier, I. A.
Grondin, M. -H.
Grove, J. E.
Guillemot, L.
Guiriec, S.
Hanabata, Y.
Harding, A. K.
Hayashida, M.
Hays, E.
Hughes, R. E.
Jackson, M. S.
Johannesson, G.
Johnson, A. S.
Johnson, T. J.
Johnson, W. N.
Kamae, T.
Katagiri, H.
Kataoka, J.
Katsuta, J.
Kawai, N.
Kerr, M.
Knoedlseder, J.
Kocian, M. L.
Kramer, M.
Kuss, M.
Lande, J.
Latronico, L.
Lemoine-Goumard, M.
Longo, F.
Loparco, F.
Lott, B.
Lovellette, M. N.
Lubrano, P.
Lyne, A. G.
Madejski, G. M.
Makeev, A.
Mazziotta, M. N.
McEnery, J. E.
Meurer, C.
Michelson, P. F.
Mitthumsiri, W.
Mizuno, T.
Monte, C.
Monzani, M. E.
Morselli, A.
Moskalenko, I. V.
Murgia, S.
Nakamori, T.
Nolan, P. L.
Norris, J. P.
Noutsos, A.
Nuss, E.
Ohsugi, T.
Omodei, N.
Orlando, E.
Ormes, J. F.
Paneque, D.
Parent, D.
Pelassa, V.
Pepe, M.
Pesce-Rollins, M.
Piron, F.
Porter, T. A.
Raino, S.
Rando, R.
Razzano, M.
Reimer, A.
Reimer, O.
Reposeur, T.
Rochester, L. S.
Rodriguez, A. Y.
Romani, R. W.
Roth, M.
Ryde, F.
Sadrozinski, H. F. -W.
Sanchez, D.
Sander, A.
Parkinson, P. M. Saz
Scargle, J. D.
Sgro, C.
Siskind, E. J.
Smith, D. A.
Smith, P. D.
Spandre, G.
Spinelli, P.
Stappers, B. W.
Stecker, F. W.
Strickman, M. S.
Suson, D. J.
Tajima, H.
Takahashi, H.
Takahashi, T.
Tanaka, T.
Thayer, J. B.
Thayer, J. G.
Theureau, G.
Thompson, D. J.
Tibaldo, L.
Tibolla, O.
Torres, D. F.
Tosti, G.
Tramacere, A.
Uchiyama, Y.
Usher, T. L.
Vasileiou, V.
Venter, C.
Vilchez, N.
Vitale, V.
Waite, A. P.
Wang, P.
Winer, B. L.
Wood, K. S.
Yamazaki, R.
Ylinen, T.
Ziegler, M.
TI Gamma-Ray Emission from the Shell of Supernova Remnant W44 Revealed by
the Fermi LAT
SO SCIENCE
LA English
DT Article
ID SHOCKED MOLECULAR GAS; PULSAR WIND NEBULA; VERY-HIGH-ENERGY;
PARTICLE-ACCELERATION; STREAMING INSTABILITY; WAVE DISSIPATION; RX
J1713.7-3946; AREA TELESCOPE; GALACTIC PLANE; COSMIC-RAYS
AB Recent observations of supernova remnants (SNRs) hint that they accelerate cosmic rays to energies close to similar to 10(15) electron volts. However, the nature of the particles that produce the emission remains ambiguous. We report observations of SNR W44 with the Fermi Large Area Telescope at energies between 2 x 10(8) electron volts and 3 x 10(11) electron volts. The detection of a source with a morphology corresponding to the SNR shell implies that the emission is produced by particles accelerated there. The gamma-ray spectrum is well modeled with emission from protons and nuclei. Its steepening above similar to 10(9) electron volts provides a probe with which to study how particle acceleration responds to environmental effects such as shock propagation in dense clouds and how accelerated particles are released into interstellar space.
C1 [Ackermann, M.; Ajello, M.; Bechtol, K.; Berenji, B.; Blandford, R. D.; Bloom, E. D.; Borgland, A. W.; Cameron, R. A.; Chiang, J.; Claus, R.; Digel, S. W.; do Couto e Silva, E.; Drell, P. S.; Dubois, R.; Focke, W. B.; Funk, S.; Glanzman, T.; Godfrey, G.; Hayashida, M.; Johannesson, G.; Johnson, A. S.; Kamae, T.; Kocian, M. L.; Lande, J.; Madejski, G. M.; Michelson, P. F.; Mitthumsiri, W.; Monzani, M. E.; Murgia, S.; Nolan, P. L.; Reimer, A.; Reimer, O.; Rochester, L. S.; Romani, R. W.; Tajima, H.; Tanaka, T.; Thayer, J. B.; Thayer, J. G.; Tramacere, A.; Uchiyama, Y.; Usher, T. L.; Waite, A. P.; Wang, P.] Stanford Univ, Dept Phys, Kavli Inst Particle Astrophys & Cosmol, WW Hansen Expt Phys Lab, Stanford, CA 94305 USA.
[Abdo, A. A.; Chekhtman, A.; Dermer, C. D.; Grove, J. E.; Johnson, W. N.; Lovellette, M. N.; Makeev, A.; Strickman, M. S.; Wood, K. S.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Ackermann, M.; Ajello, M.; Bechtol, K.; Berenji, B.; Blandford, R. D.; Bloom, E. D.; Borgland, A. W.; Cameron, R. A.; Chiang, J.; Claus, R.; Digel, S. W.; do Couto e Silva, E.; Drell, P. S.; Dubois, R.; Focke, W. B.; Funk, S.; Glanzman, T.; Godfrey, G.; Hayashida, M.; Johannesson, G.; Johnson, A. S.; Kamae, T.; Kocian, M. L.; Lande, J.; Madejski, G. M.; Michelson, P. F.; Mitthumsiri, W.; Monzani, M. E.; Murgia, S.; Nolan, P. L.; Reimer, A.; Reimer, O.; Rochester, L. S.; Romani, R. W.; Tajima, H.; Tanaka, T.; Thayer, J. B.; Thayer, J. G.; Tramacere, A.; Uchiyama, Y.; Usher, T. L.; Waite, A. P.; Wang, P.] Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA.
[Baldini, L.; Bellazzini, R.; Bregeon, J.; Brez, A.; Kuss, M.; Latronico, L.; Omodei, N.; Pesce-Rollins, M.; Razzano, M.; Sgro, C.; Spandre, G.] Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy.
[Ballet, J.; Casandjian, J. M.; Grenier, I. A.; Tibaldo, L.] Univ Paris Diderot, CEA Saclay, Inst Rech Lois Fondament Univers,Serv Astrophys, Lab Astrophys Instrumentat Modelisat,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.
[Baring, M. G.] Rice Univ, Dept Phys & Astron, Houston, TX 77251 USA.
[Bastieri, D.; Rando, R.; Tibaldo, L.] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy.
[Bastieri, D.; Buson, S.; Rando, R.; Tibaldo, L.] Univ Padua, Dipartimento Fis G Galilei, I-35131 Padua, Italy.
[Baughman, B. M.; Hughes, R. E.; Sander, A.; Smith, P. D.; Winer, B. L.] Ohio State Univ, Dept Phys, Ctr Cosmol & Astroparticle Phys, Columbus, OH 43210 USA.
[Bonamente, E.; Cecchi, C.; Ciprini, S.; Germani, S.; Lubrano, P.; Pepe, M.; Tosti, G.] Ist Nazl Fis Nucl, Sez Perugia, I-06123 Perugia, Italy.
[Bonamente, E.; Cecchi, C.; Ciprini, S.; Germani, S.; Lubrano, P.; Pepe, M.; Tosti, G.] Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy.
[Brigida, M.; Caliandro, G. A.; de Palma, F.; Favuzzi, C.; Fusco, P.; Giglietto, N.; Giordano, F.; Loparco, F.; Monte, C.; Raino, S.; Spinelli, P.] Univ Bari, Dipartimento Fis M Merlin, I-70126 Bari, Italy.
[Brigida, M.; Caliandro, G. A.; de Palma, F.; Favuzzi, C.; Fusco, P.; Giglietto, N.; Giordano, F.; Loparco, F.; Monte, C.; Raino, S.; Spinelli, P.] Politecn Bari, I-70126 Bari, Italy.
[Brigida, M.; Caliandro, G. A.; de Palma, F.; Favuzzi, C.; Fusco, P.; Gargano, F.; Giglietto, N.; Giordano, F.; Loparco, F.; Mazziotta, M. N.; Monte, C.; Raino, S.; Spinelli, P.] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy.
[Bruel, P.; Fegan, S. J.; Fortin, P.; Giebels, B.; Sanchez, D.] Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France.
[Burnett, T. H.; Kerr, M.; Roth, M.] Univ Washington, Dept Phys, Seattle, WA 98195 USA.
[Caraveo, P. A.] Ist Nazl Astrofis, Ist Astrofis Spaziale & Fis Cosm, I-20133 Milan, Italy.
[Celik, Oe.; Cheung, C. C.; Gehrels, N.; Harding, A. K.; Hays, E.; Johnson, T. J.; McEnery, J. E.; Stecker, F. W.; Thompson, D. J.; Vasileiou, V.; Venter, C.] NASA, Goddard Space Flight Ctr, CRESST, Greenbelt, MD 20771 USA.
[Celik, Oe.; Vasileiou, V.] Univ Maryland Baltimore Cty, Baltimore, MD 21250 USA.
[Chekhtman, A.; Makeev, A.] George Mason Univ, Fairfax, VA 22030 USA.
[Cognard, I.; Theureau, G.] CNRS, UMR 6115, LPCE, F-45071 Orleans 02, France.
[Cognard, I.; Theureau, G.] INSU, CNRS, Observ Paris, Stn Radioastron Nancay, F-18330 Nancay, France.
[Cohen-Tanugi, J.; Farnier, C.; Nuss, E.; Pelassa, V.; Piron, F.] Univ Montpellier 2, CNRS, IN2P3, Lab Phys Theor & Astroparticules, Montpellier, France.
[Cominsky, L. R.; Meurer, C.] Sonoma State Univ, Dept Phys & Astron, Rohnert Pk, CA 94928 USA.
[Conrad, J.; Jackson, M. S.; Meurer, C.] Stockholm Univ, Dept Phys, SE-10691 Stockholm, Sweden.
[Conrad, J.; Jackson, M. S.; Ryde, F.; Ylinen, T.] Oskar Klein Ctr Cosmoparticle Phys, SE-10691 Stockholm, Sweden.
[Cutini, S.; Gasparrini, D.] ASI, Sci Data Ctr, I-00044 Frascati, Roma, Italy.
[de Angelis, A.; Frailis, M.] Univ Udine, Dipartimento Fis, I-33100 Udine, Italy.
[de Angelis, A.; Frailis, M.] Ist Nazl Fis Nucl, Sez Trieste, Grp Coll Udine, I-33100 Udine, Italy.
[Dumora, D.; Grondin, M. -H.; Guillemot, L.; Lemoine-Goumard, M.; Lott, B.; Parent, D.; Reposeur, T.; Smith, D. A.] Univ Bordeaux, CEN Bordeaux Gradignan, UMR 5797, F-33175 Gradignan, France.
[Dumora, D.; Grondin, M. -H.; Guillemot, L.; Lemoine-Goumard, M.; Lott, B.; Parent, D.; Reposeur, T.; Smith, D. A.] CEN Bordeaux Gradignan, CNRS, UMR 5797, IN2P3, F-33175 Gradignan, France.
[Espinoza, C.; Kramer, M.; Lyne, A. G.; Noutsos, A.; Stappers, B. W.] Univ Manchester, Sch Phys & Astron, Jodrell Bank, Ctr Astrophys, Manchester M13 9PL, Lancs, England.
[Fukazawa, Y.; Hanabata, Y.; Katagiri, H.; Mizuno, T.; Ohsugi, T.; Takahashi, H.; Yamazaki, R.] Hiroshima Univ, Dept Phys Sci, Hiroshima 7398526, Japan.
[Gehrels, N.; Johnson, T. J.] Univ Maryland, College Pk, MD 20742 USA.
[Giavitto, G.] Ist Nazl Fis Nucl, Sez Trieste, I-34127 Trieste, Italy.
[Guiriec, S.] Univ Alabama, Huntsville, AL 35899 USA.
[Jackson, M. S.; Ryde, F.; Ylinen, T.] Royal Inst Technol KTH, Dept Phys, SE-10691 Stockholm, Sweden.
[Kataoka, J.; Kawai, N.; Nakamori, T.] Tokyo Inst Technol, Dept Phys, Meguro, Tokyo 1528551, Japan.
[Kataoka, J.] Waseda Univ, Shinjuku Ku, Tokyo 1698050, Japan.
[Katsuta, J.; Takahashi, T.] Japan Aerosp Explorat Agcy, Inst Space & Astronaut Sci, Sagamihara, Kanagawa 2298510, Japan.
[Katsuta, J.] Univ Tokyo, Grad Sch Sci, Dept Phys, Bunkyo Ku, Tokyo 1130033, Japan.
[Kawai, N.] RIKEN, Inst Phys & Chem Res, Cosm Radiat Lab, Wako, Saitama 3510198, Japan.
[Knoedlseder, J.; Vilchez, N.] Univ Toulouse 3, CNRS, Ctr Etud Spatiale Rayonnements, F-31028 Toulouse 4, France.
[Kramer, M.] Max Planck Inst Radioastron, D-53121 Bonn, Germany.
[Morselli, A.; Vitale, V.] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, I-00133 Rome, Italy.
[Norris, J. P.; Ormes, J. F.] Univ Denver, Dept Phys & Astron, Denver, CO 80208 USA.
[Orlando, E.] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany.
[Porter, T. A.; Sadrozinski, H. F. -W.; Parkinson, P. M. Saz; Ziegler, M.] Univ Calif Santa Cruz, Dept Phys, Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA.
[Porter, T. A.; Sadrozinski, H. F. -W.; Parkinson, P. M. Saz; Ziegler, M.] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA.
[Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria.
[Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria.
[Rodriguez, A. Y.; Torres, D. F.] CSIC, IEEC, Inst Ciencies Espai, Barcelona 08193, Spain.
[Scargle, J. D.] NASA, Ames Res Ctr, Div Space Sci, Moffett Field, CA 94035 USA.
[Siskind, E. J.] NYCB Real Time Comp Inc, Lattingtown, NY 11560 USA.
[Suson, D. J.] Purdue Univ Calumet, Dept Chem & Phys, Hammond, IN 46323 USA.
[Tibolla, O.] Max Planck Inst Kernphys, D-69029 Heidelberg, Germany.
[Torres, D. F.] ICREA, Barcelona 08010, Spain.
[Tramacere, A.] CIFS, I-10133 Turin, Italy.
[Venter, C.] North West Univ, ZA-2520 Potchefstroom, South Africa.
[Vitale, V.] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy.
[Ylinen, T.] Univ Kalmar, Sch Pure & Appl Nat Sci, SE-39182 Kalmar, Sweden.
RP Tajima, H (reprint author), Stanford Univ, Dept Phys, Kavli Inst Particle Astrophys & Cosmol, WW Hansen Expt Phys Lab, Stanford, CA 94305 USA.
EM htajima@slac.stanford.edu; ttanaka@slac.stanford.edu;
uchiyama@slac.stanford.edu
RI Rando, Riccardo/M-7179-2013; Hays, Elizabeth/D-3257-2012; Johnson,
Neil/G-3309-2014; Reimer, Olaf/A-3117-2013; Funk, Stefan/B-7629-2015;
Johannesson, Gudlaugur/O-8741-2015; Loparco, Francesco/O-8847-2015;
Gargano, Fabio/O-8934-2015; Moskalenko, Igor/A-1301-2007; Mazziotta,
Mario /O-8867-2015; Sgro, Carmelo/K-3395-2016; Torres,
Diego/O-9422-2016; Saz Parkinson, Pablo Miguel/I-7980-2013; Venter,
Christo/E-6884-2011; Thompson, David/D-2939-2012; Stecker,
Floyd/D-3169-2012; Harding, Alice/D-3160-2012; Gehrels,
Neil/D-2971-2012; McEnery, Julie/D-6612-2012; Baldini, Luca/E-5396-2012;
lubrano, pasquale/F-7269-2012; Morselli, Aldo/G-6769-2011; Nolan,
Patrick/A-5582-2009; Kuss, Michael/H-8959-2012; giglietto,
nicola/I-8951-2012; Tosti, Gino/E-9976-2013;
OI Reimer, Olaf/0000-0001-6953-1385; Funk, Stefan/0000-0002-2012-0080;
Johannesson, Gudlaugur/0000-0003-1458-7036; Loparco,
Francesco/0000-0002-1173-5673; Gargano, Fabio/0000-0002-5055-6395;
Moskalenko, Igor/0000-0001-6141-458X; Mazziotta, Mario
/0000-0001-9325-4672; Torres, Diego/0000-0002-1522-9065; Sgro',
Carmelo/0000-0001-5676-6214; SPINELLI, Paolo/0000-0001-6688-8864;
Venter, Christo/0000-0002-2666-4812; Thompson,
David/0000-0001-5217-9135; lubrano, pasquale/0000-0003-0221-4806;
Morselli, Aldo/0000-0002-7704-9553; giglietto,
nicola/0000-0002-9021-2888; Gasparrini, Dario/0000-0002-5064-9495;
Tramacere, Andrea/0000-0002-8186-3793; Baldini,
Luca/0000-0002-9785-7726; De Angelis, Alessandro/0000-0002-3288-2517;
Frailis, Marco/0000-0002-7400-2135; Caraveo,
Patrizia/0000-0003-2478-8018; Bastieri, Denis/0000-0002-6954-8862;
Omodei, Nicola/0000-0002-5448-7577; Pesce-Rollins,
Melissa/0000-0003-1790-8018; Cutini, Sara/0000-0002-1271-2924
FU NASA; Department of Energy in the United States; CEA/Irfu; IN2P3/CNRS;
Centre National d'Etudes Spatiales in France; ASI; INFN; INAF in Italy;
Ministry of Education, Culture, Sports, Science, and Technology, High
Energy Accelerator Research Organization (KEK); JAXA in Japan; K. A.
Wallenberg Foundation; Swedish Research Council; National Space Board in
Sweden
FX The Fermi LAT Collaboration acknowledges support from a number of
agencies and institutes for both development and the operation of the
LAT as well as scientific data analysis. These include NASA and
Department of Energy in the United States; CEA/Irfu, IN2P3/CNRS, and
Centre National d'Etudes Spatiales in France; ASI, INFN, and INAF in
Italy; Ministry of Education, Culture, Sports, Science, and Technology,
High Energy Accelerator Research Organization (KEK) and JAXA in Japan;
and the K. A. Wallenberg Foundation, the Swedish Research Council, and
the National Space Board in Sweden.
NR 31
TC 154
Z9 156
U1 0
U2 10
PU AMER ASSOC ADVANCEMENT SCIENCE
PI WASHINGTON
PA 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 USA
SN 0036-8075
EI 1095-9203
J9 SCIENCE
JI Science
PD FEB 26
PY 2010
VL 327
IS 5969
BP 1103
EP 1106
DI 10.1126/science.1182787
PG 4
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 560KJ
UT WOS:000274901100028
PM 20056857
ER
PT J
AU Radko, T
AF Radko, Timour
TI Equilibration of weakly nonlinear salt fingers
SO JOURNAL OF FLUID MECHANICS
LA English
DT Article
ID LARGE-SCALE FLOW; THERMOHALINE STAIRCASES; TURBULENT CONVECTION;
AMPLITUDE; INTERIORS; LAYERS; FLUID; STARS
AB An analytical model is developed to explain the equilibration mechanism of the salt finger instability in unbounded temperature and salinity gradients. The theory is based on the weakly nonlinear asymptotic expansion about the point of marginal instability. The proposed solutions attribute equilibration of salt fingers to a combination of two processes: (i) the triad interaction and (ii) spontaneous development of the mean vertical shear. The non-resonant triad interactions control the equilibration of linear growth for moderate and large values of Prandtl number (Pr) and for slightly unstable parameters. For small Pr and/or rigorous instabilities, the mean shear effects become essential. It is shown that, individually, neither the mean field nor the triad interaction models can accurately describe the equilibrium patterns of salt fingers in all regions of the parameter space. Therefore, we propose a new hybrid model, which represents both stabilizing effects in a single framework. The resulting Solutions agree with the fully nonlinear numerical simulations over a wide range of governing parameters.
C1 USN, Postgrad Sch, Dept Oceanog, Monterey, CA 93943 USA.
RP Radko, T (reprint author), USN, Postgrad Sch, Dept Oceanog, Monterey, CA 93943 USA.
EM tradko@nps.edu
NR 27
TC 10
Z9 10
U1 0
U2 1
PU CAMBRIDGE UNIV PRESS
PI NEW YORK
PA 32 AVENUE OF THE AMERICAS, NEW YORK, NY 10013-2473 USA
SN 0022-1120
J9 J FLUID MECH
JI J. Fluid Mech.
PD FEB 25
PY 2010
VL 645
BP 121
EP 143
DI 10.1017/S0022112009992552
PG 23
WC Mechanics; Physics, Fluids & Plasmas
SC Mechanics; Physics
GA 570LF
UT WOS:000275678600005
ER
PT J
AU Bermudez, VM
AF Bermudez, V. M.
TI Ab Initio Study of the Interaction of Dimethyl Methylphosphonate with
Rutile (110) and Anatase (101) TiO2 Surfaces
SO JOURNAL OF PHYSICAL CHEMISTRY C
LA English
DT Article
ID WARFARE AGENT SIMULANT; CLUSTER CALCULATIONS; PHOSPHONIC ACID;
PHOTOCATALYTIC DECOMPOSITION; ORGANOPHOSPHOROUS COMPOUNDS;
PHOTOELECTRON-SPECTROSCOPY; VIBRATIONAL SPECTROSCOPY; MICROCRYSTALLINE
TIO2; ELECTRONIC-STRUCTURE; DENSITY FUNCTIONALS
AB Density functional theory has been applied to an ab initio Study of the molecular and the dissociative adsorption of dimethyl methylphosphonate (DMMP) oil TiO2. Rutile (110)-(1 x 1) and anatase (101)-(1 x 1) Surfaces, free of defects and of OH, have been modeled using two-dimensionally periodic slabs (2-DPS) and also clusters with unsaturated edge atoms terminated with pseudohydrogen. Molecular adsorption Occurs via the formation of a Ti-5c center dot center dot center dot O=P dative bond at unsaturated, 5-fold-coordinated Ti Surface sites. C-H center dot center dot center dot O bonds between CH3 groups and surface 0 atoms also contribute, but dative bonding between methoxy O atoms and Ti-5c sites has no significant effect. In 2-DPS calculations, all TiO2 Surfaces considered give about the same adsorption energy (Delta E-ads)for molecular adsorption. There does, however, appear to be a small variation among the different Substrates whereby Delta E-ads increases with Surface energy. Two spectroscopic Signatures of molecular adsorption have been computed. One is a shift of -70 cm(-1), relative to the gas-phase value, in the nu(P=O) stretching frequency, and the other is a shift of 0.5 eV to higher bindind energy, relative to the gas-phase value, of the molecular HOMO. Several hypothetically possible products have been considered for the first step in dissociative adsorption. The most favorable is a (CH3)(CH3O)P(-O-)(2) bridge between two Ti-5c Sites together with a CH3 bonded to the O atom of a (Ti-)(2)O-2c site. This model is consistent with experimental results for DMMP adsorption oil OH-free rutile (110) surfaces. Oil all TiO2 Surfaces considered, dissociative adsorption is more exothermic than molecular adsorption. In 2-DPS calculations, Delta E-ads for dissociative adsorption is essentially the same for rutile (110) and anatase (101), but is smaller than that for anatase (010). The cluster models give results that are generally consistent with those of 2-DPS models; however, Delta E-ads is somewhat overestimated in the cluster Calculations.
C1 USN, Res Lab, Div Elect Sci & Technol, Washington, DC 20375 USA.
RP Bermudez, VM (reprint author), USN, Res Lab, Div Elect Sci & Technol, Washington, DC 20375 USA.
EM victor.bermudez@nrl.navy.mil
FU Defense Threat Reduction Agency (DTRA)
FX This work was supported by the Defense Threat Reduction Agency (DTRA).
Computer facilities were provided by the Naval Research Laboratory and
by the DOD High-Performance Computing Modernization Program at the
AFRL-MSRC, Wright-Patterson AFB, OH, and at the ARL-MSRC, Adelphi, MD.
X. Duan (AFRL-MSRC) is thanked for installing the LoptCG script and for
help with various aspects of running the CRYSTAL code. D. A. Chen, S.
Erwin, J. D. Evanseck, L. Ojamae, J. A. Plumley, J. Scaranto, D. Sorescu
and D. G. Truhlar are thanked for helpful communications.
NR 97
TC 19
Z9 19
U1 2
U2 34
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1932-7447
J9 J PHYS CHEM C
JI J. Phys. Chem. C
PD FEB 25
PY 2010
VL 114
IS 7
BP 3063
EP 3074
DI 10.1021/jp9098304
PG 12
WC Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science,
Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 556GQ
UT WOS:000274578700032
ER
PT J
AU Wrotny, JE
Nedoluha, GE
Boone, C
Stiller, GP
McCormack, JP
AF Wrotny, Jonathan E.
Nedoluha, Gerald E.
Boone, Chris
Stiller, Gabriele P.
McCormack, John P.
TI Total hydrogen budget of the equatorial upper stratosphere
SO JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
LA English
DT Article
ID HALOGEN OCCULTATION EXPERIMENT; TROPICAL TROPOPAUSE TEMPERATURES;
QUASI-BIENNIAL OSCILLATION; WATER-VAPOR BUDGET; MOLECULAR-HYDROGEN;
EMISSION-SPECTRA; CH4; MIPAS; H2O; TRENDS
AB Water vapor and methane mixing ratios measured by the Halogen Occultation Experiment (HALOE), the Atmospheric Chemistry Experiment (ACE), and the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) along with simulations from the NRL CHEM2D middle atmosphere model are used to study the hydrogen budget in the equatorial upper stratosphere. Multiyear time series of equatorial upper stratospheric H2O + 2*CH4 show temporal variations during periods of relative long-term stability in water vapor and methane entering the stratosphere. These variations, which are anticorrelated to CH4, are quasibiennial and seasonal in nature, and peak near 2 hPa with a magnitude of 3% of the H2O + 2*CH4 mixing ratio. We find that the ratio of the changes in water vapor to the changes in methane is consistently >2 over the entire equatorial upper stratosphere in HALOE, ACE, and MIPAS data. Ratios of the H2O to CH4 changes calculated from the CHEM2D model are similar, but slightly smaller, and the variations in H2O + 2*CH4 are balanced by nearly equivalent variations in molecular hydrogen. We use this relationship to infer molecular hydrogen mixing ratios from the observations which show that its mixing ratio decreases with altitude above 5 hPa. This net loss in molecular hydrogen drives additional water vapor production so that multiyear average profiles of H2O + 2*CH4 from HALOE, ACE, and MIPAS show an similar to 0.4 ppmv increase between 5 hPa and 1.5 hPa, so that total hydrogen is conserved. Collectively, these results illustrate the importance of molecular hydrogen in the equatorial upper stratospheric hydrogen budget.
C1 [Wrotny, Jonathan E.; Nedoluha, Gerald E.] USN, Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
[Boone, Chris] Univ Waterloo, Dept Chem, Waterloo, ON N2L 3G1, Canada.
[McCormack, John P.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Stiller, Gabriele P.] Univ Karlsruhe, Forschungszentrum Karlsruhe, IMK ASF, D-76021 Karlsruhe, Germany.
RP Wrotny, JE (reprint author), Atmospher & Environm Res Inc, Greenbelt, MD 20706 USA.
EM jwrotny@aer.com
RI Stiller, Gabriele/A-7340-2013;
OI Stiller, Gabriele/0000-0003-2883-6873; McCormack,
John/0000-0002-3674-0508
FU National Academy of Sciences (NAS); National Research Council (NRC)
FX We would like to thank the HALOE and MIPAS (IMK-ASF) teams for making
their data available, and thanks go to the Canadian Space Agency for
access to the ACE data. We thank M. McHugh (GATS, Inc.) for data of
HALOE and ACE comparisons, and we thank S. Frith (NASA) for QBO EOF
functions. We also appreciate helpful discussions with E. Shettle (NRL),
K. Hoppel ( NRL), D. Siskind (NRL), and E. Remsberg (NASA). This work
was supported by the National Academy of Sciences (NAS) National
Research Council (NRC) fellowship program.
NR 54
TC 13
Z9 13
U1 0
U2 6
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 2169-897X
J9 J GEOPHYS RES-ATMOS
JI J. Geophys. Res.-Atmos.
PD FEB 24
PY 2010
VL 115
AR D04302
DI 10.1029/2009JD012135
PG 16
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 562FV
UT WOS:000275036100001
ER
PT J
AU Freitas, JA
AF Freitas, Jaime A., Jr.
TI Properties of the state of the art of bulk III-V nitride substrates and
homoepitaxial layers
SO JOURNAL OF PHYSICS D-APPLIED PHYSICS
LA English
DT Review
ID MOLECULAR-BEAM EPITAXY; VAPOR-PHASE EPITAXY; VALENCE-BAND SPLITTINGS;
SINGLE-CRYSTAL GROWTH; DOPED GAN FILMS; NA FLUX METHOD; HIGH-PRESSURE;
OPTICAL-PROPERTIES; AMMONOTHERMAL GAN; ALUMINUM NITRIDE
AB The technological importance of III-V nitride semiconductors relies on their variety of applications, which cover optical, optoelectronic and electronic devices capable of operating under extreme values of current, voltage and temperature. The major roadblock for full realization of the potential of nitride semiconductors is still the availability of affordable large-area and high-quality native substrates with controlled electrical properties. Despite the impressive accomplishments recently achieved by techniques such as hydride vapour phase epitaxy and ammonothermal for GaN and sublimation for AlN, much more must be attained before establishing a bulk growth technique of choice to grow these materials. A brief review of the structural, optical and electronic properties of the state of the art of bulk and thick-film (quasi-bulk) nitride substrates and homoepitaxial films is presented, and a few device applications are also highlighted.
C1 USN, Res Lab, Div Elect Sci & Technol, Elect Mat Branch, Washington, DC 20375 USA.
RP Freitas, JA (reprint author), USN, Res Lab, Div Elect Sci & Technol, Elect Mat Branch, Washington, DC 20375 USA.
EM jaime.freitas@nrl.navy.mil
NR 130
TC 15
Z9 16
U1 6
U2 58
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 0022-3727
J9 J PHYS D APPL PHYS
JI J. Phys. D-Appl. Phys.
PD FEB 24
PY 2010
VL 43
IS 7
AR 073001
DI 10.1088/0022-3727/43/7/073001
PG 13
WC Physics, Applied
SC Physics
GA 552UD
UT WOS:000274318200002
ER
PT J
AU Nguyen, JT
Hoopes, JD
Le, MH
Smee, DF
Patick, AK
Faix, DJ
Blair, PJ
de Jong, MD
Prichard, MN
Went, GT
AF Nguyen, Jack T.
Hoopes, Justin D.
Le, Minh H.
Smee, Donald F.
Patick, Amy K.
Faix, Dennis J.
Blair, Patrick J.
de Jong, Menno D.
Prichard, Mark N.
Went, Gregory T.
TI Triple Combination of Amantadine, Ribavirin, and Oseltamivir Is Highly
Active and Synergistic against Drug Resistant Influenza Virus Strains In
Vitro
SO PLOS ONE
LA English
DT Article
ID A H1N1 VIRUSES; NEURAMINIDASE INHIBITORS; HEMAGGLUTININ GLYCOPROTEIN;
CELL-CULTURE; MDCK CELLS; APRIL 2009; MICE; INFECTIONS; SURVEILLANCE;
WORLDWIDE
AB The rapid emergence and subsequent spread of the novel 2009 Influenza A/H1N1 virus (2009 H1N1) has prompted the World Health Organization to declare the first pandemic of the 21(st) century, highlighting the threat of influenza to public health and healthcare systems. Widespread resistance to both classes of influenza antivirals (adamantanes and neuraminidase inhibitors) occurs in both pandemic and seasonal viruses, rendering these drugs to be of marginal utility in the treatment modality. Worldwide, virtually all 2009 H1N1 and seasonal H3N2 strains are resistant to the adamantanes (rimantadine and amantadine), and the majority of seasonal H1N1 strains are resistant to oseltamivir, the most widely prescribed neuraminidase inhibitor (NAI). To address the need for more effective therapy, we evaluated the in vitro activity of a triple combination antiviral drug (TCAD) regimen composed of drugs with different mechanisms of action against drug-resistant seasonal and 2009 H1N1 influenza viruses. Amantadine, ribavirin, and oseltamivir, alone and in combination, were tested against amantadine-and oseltamivir-resistant influenza A viruses using an in vitro infection model in MDCK cells. Our data show that the triple combination was highly synergistic against drug-resistant viruses, and the synergy of the triple combination was significantly greater than the synergy of any double combination tested (P < 0.05), including the combination of two NAIs. Surprisingly, amantadine and oseltamivir contributed to the antiviral activity of the TCAD regimen against amantadine-and oseltamivir-resistant viruses, respectively, at concentrations where they had no activity as single agents, and at concentrations that were clinically achievable. Our data demonstrate that the TCAD regimen composed of amantadine, ribavirin, and oseltamivir is highly synergistic against resistant viruses, including 2009 H1N1. The TCAD regimen overcomes baseline drug resistance to both classes of approved influenza antivirals, and thus may represent a highly active antiviral therapy for seasonal and pandemic influenza.
C1 [Nguyen, Jack T.; Le, Minh H.; Patick, Amy K.; Went, Gregory T.] Adamas Pharmaceut Inc, Emeryville, CA USA.
[Hoopes, Justin D.; Smee, Donald F.] Utah State Univ, Logan, UT 84322 USA.
[Faix, Dennis J.; Blair, Patrick J.] USN, Hlth Res Ctr, San Diego, CA 92152 USA.
[de Jong, Menno D.] Univ Amsterdam, Acad Med Ctr, NL-1105 AZ Amsterdam, Netherlands.
[Prichard, Mark N.] Univ Alabama, Birmingham, AL USA.
RP Nguyen, JT (reprint author), Adamas Pharmaceut Inc, Emeryville, CA USA.
EM jnguyen@adamaspharma.com; gwent@adamaspharma.com
FU Adamas Pharmaceuticals
FX Funding for this study was provided by Adamas Pharmaceuticals. Authors
from Adamas Pharmaceuticals participated in the design of the studies,
analysis of the data, and preparing the manuscript.
NR 40
TC 87
Z9 91
U1 1
U2 16
PU PUBLIC LIBRARY SCIENCE
PI SAN FRANCISCO
PA 185 BERRY ST, STE 1300, SAN FRANCISCO, CA 94107 USA
SN 1932-6203
J9 PLOS ONE
JI PLoS One
PD FEB 22
PY 2010
VL 5
IS 2
AR e9332
DI 10.1371/journal.pone.0009332
PG 12
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 560SU
UT WOS:000274923900006
PM 20179772
ER
PT J
AU Prasuhn, DE
Deschamps, JR
Susumu, K
Stewart, MH
Boeneman, K
Blanco-Canosa, JB
Dawson, PE
Medintz, IL
AF Prasuhn, Duane E.
Deschamps, Jeffrey R.
Susumu, Kimihiro
Stewart, Michael H.
Boeneman, Kelly
Blanco-Canosa, Juan B.
Dawson, Philip E.
Medintz, Igor L.
TI Polyvalent Display and Packing of Peptides and Proteins on Semiconductor
Quantum Dots: Predicted Versus Experimental Results
SO SMALL
LA English
DT Article
DE nanoparticles; peptides; proteins; quantum dots; semiconductors
ID RESONANCE ENERGY-TRANSFER; GOLD NANOPARTICLES; BIOLOGICAL APPLICATIONS;
FUNCTIONAL-GROUPS; NANOCRYSTALS; STABILITY; DIAGNOSTICS; LIGANDS;
NUMBER; DONORS
AB Quantum dots (QDs) are loaded with. a series of peptides and proteins of increasing size, including a <20 residue peptide, myoglobin, mCherry, and maltose binding protein, which together cover a range of masses from <2.2 to approximate to 44 kDa. Conjugation to the surface of dihydrolipoic acid-functionalized QDs is facilitated by polyhistidine metal affinity coordination. Increasing ratios of dye-labeled peptides and proteins are self-assembled to the QDs and then the bioconjugates are separated and analyzed using agarose gel electrophoresis. Fluorescent visualization of both conjugated and unbound species allows determination of an experimentally derived maximum loading number. Molecular modeling utilizing crystallographic coordinates or space-filling structures of the peptides and proteins also allow the predicted maximum loadings to the QDs to be estimated. Comparison of the two sets of results provides insight into the nature of the QD surface and reflects the important role played by the nanoparticle's hydrophilic solubilizing surface ligands. It is found that,for the larger protein molecules steric hindrance is the major packing constraint. In contrast, for the smaller peptides, the number of available QD binding sites is the principal determinant. These results can contribute towards an overall understanding of how to engineer designer bioconjugates for both QDs and other nanoparticle materials.
C1 [Prasuhn, Duane E.; Deschamps, Jeffrey R.; Boeneman, Kelly; Medintz, Igor L.] USN, Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 USA.
[Susumu, Kimihiro; Stewart, Michael H.] USN, Res Lab, Div Opt Sci, Washington, DC 20375 USA.
[Blanco-Canosa, Juan B.; Dawson, Philip E.] Scripps Res Inst, Skaggs Inst Chem Biol, La Jolla, CA 92037 USA.
[Blanco-Canosa, Juan B.; Dawson, Philip E.] Scripps Res Inst, Dept Chem, La Jolla, CA 92037 USA.
[Blanco-Canosa, Juan B.; Dawson, Philip E.] Scripps Res Inst, Dept Cell Biol, La Jolla, CA 92037 USA.
RP Medintz, IL (reprint author), USN, Res Lab, Ctr Bio Mol Sci & Engn, Code 6900, Washington, DC 20375 USA.
EM igor.medintz@nrl.navy.mil
RI Gemmill, Kelly/G-2167-2012;
OI Deschamps, Jeffrey/0000-0001-5845-0010
FU CB Directorote/Physical S&T Division DTRA/ARO; ONR; NRL; NRL-NSI;
American Society for Engineering Education Fellowship; National Research
Council Fellowship; Marie Curie Foundation; NIH [P41 RR-01081]
FX The authors acknowledge the CB Directorote/Physical S&T Division
DTRA/ARO, ONR, NRL, and the NRL-NSI for financial support. D.E.P and
K.B. are supported by an American Society for Engineering Education
Fellowship through NRL. M.H.S. is supported by a National Research
Council Fellowship. J.B.B.-C. gratefully acknowledges the Marie Curie
Foundation for a postdoctoral fellowship. Molecular graphics images were
produced using the UCSF Chimera package from the Resource for
Biocomputing, Visualization, and Informatics at the University of
California, Son Francisco (supported by NIH P41 RR-01081).
NR 50
TC 62
Z9 62
U1 2
U2 39
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA POSTFACH 101161, 69451 WEINHEIM, GERMANY
SN 1613-6810
EI 1613-6829
J9 SMALL
JI Small
PD FEB 22
PY 2010
VL 6
IS 4
BP 555
EP 564
DI 10.1002/smll.200901845
PG 10
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 565AJ
UT WOS:000275260100011
PM 20077423
ER
PT J
AU Crum-Cianflone, NF
Hullsiek, KH
Marconi, VC
Ganesan, A
Weintrob, A
Barthel, RV
Agan, BK
AF Crum-Cianflone, Nancy F.
Hullsiek, Katherine Huppler
Marconi, Vincent C.
Ganesan, Anuradha
Weintrob, Amy
Barthel, Robert V.
Agan, Brian K.
CA Infect Dis Clinical Res Program
TI Anal cancers among HIV-infected persons: HAART is not slowing rising
incidence
SO AIDS
LA English
DT Article
DE anal cancer; antiretroviral therapy; epidemiology; HAART; HIV; incidence
rates
ID ACTIVE ANTIRETROVIRAL THERAPY; SQUAMOUS INTRAEPITHELIAL LESIONS;
HUMAN-IMMUNODEFICIENCY-VIRUS; HUMAN-PAPILLOMAVIRUS INFECTION;
UNITED-STATES; POSITIVE MEN; RISK-FACTOR; ERA; NEOPLASIA; TRENDS
AB Objective: To evaluate the incidence rates of anal cancer over the HIV epidemic and assess the impact of HAART use on anal cancer events.
Methods: We evaluated the incidence of and factors associated with anal cancer using longitudinal data from the prospective U. S. Military Natural History Study (19852008). Poisson regression and Cox proportional hazard models were utilized.
Results: Among 4506 HIV-infected men with 37 806 person-years of follow-up, anal cancer rates (per 100 000 person-years) increased five-fold, from 11 in the pre-HAART to 55 in the HAART era (P = 0.02). Rates continued to increase, reaching 128 in 2006-2008. Persons with HIV infection for more than 15 years had a 12-fold higher rate than those with less than 5 years (348 vs. 28, P < 0.01). At cancer diagnosis (n - 19), median age was 42 years, median CD4 cell count was 432 cells/mu l, 74% had a CD4 nadir cell count less than 200 cells/mu l, 42% had a prior AIDS event, and 74% had received HAART. From separate models, prior AIDS event (hazard ratio 3.88, P = 0.01) and lower CD4 nadir (hazard ratio 0.85 per 50 cell, P = 0.03) were associated with anal cancer, with a trend for a history of gonorrhea (hazard ratio 2.43, P = 0.07). Duration of HAART use was not associated with a reduced risk of anal cancer (hazard ratio 0.94, P = 0.42).
Conclusion: Incidence rates of anal cancer have progressively increased during the HIV epidemic. Persons with a longer duration of HIV infection have a substantially higher rate of anal cancer. As HIV-infected persons are experiencing longer life expectancies and HAART does not appear protective of anal cancer, studies on preventive strategies are needed. (C) 2010 Wolters Kluwer Health vertical bar Lippincott Williams & Wilkins
C1 [Crum-Cianflone, Nancy F.] Naval Med Ctr San Diego, Infect Dis Clin, Clin Invest Dept KCA, San Diego, CA 92134 USA.
[Crum-Cianflone, Nancy F.; Marconi, Vincent C.; Ganesan, Anuradha; Weintrob, Amy; Barthel, Robert V.; Agan, Brian K.] Uniformed Serv Univ Hlth Sci, Infect Dis Clin Res Program, Bethesda, MD 20814 USA.
[Hullsiek, Katherine Huppler] Univ Minnesota, Div Biostat, Minneapolis, MN USA.
[Marconi, Vincent C.] San Antonio Mil Med Ctr, Infect Dis Clin, San Antonio, TX USA.
[Ganesan, Anuradha] Natl Naval Med Ctr, Infect Dis Clin, Bethesda, MD USA.
[Weintrob, Amy] Walter Reed Army Med Ctr, Infect Dis Clin, Washington, DC 20307 USA.
[Barthel, Robert V.] Naval Med Ctr Portsmouth, Infect Dis Clin, Portsmouth, VA USA.
RP Crum-Cianflone, NF (reprint author), Naval Med Ctr San Diego, Infect Dis Clin, Clin Invest Dept KCA, 34800 Bob Wilson Dr,Ste 5, San Diego, CA 92134 USA.
EM nancy.crum@med.navy.mil
RI Marconi, Vincent/N-3210-2014;
OI Marconi, Vincent/0000-0001-8409-4689; Agan, Brian/0000-0002-5114-1669
FU IDCRP [G187YS-RV168D]; National Institute of Allergy and Infectious
Diseases; National Institutes of Health (NIH) [Y1-AI-5072]
FX Support for this work (IDCRP # G187YS-RV168D) was provided 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. The content of this publication is
the sole responsibility of the authors and does not necessarily reflect
the views or policies of the NIH or the Department of Health and Human
Services, the DoD or the Departments of the Army, Navy, or Air Force.
Mention of trade names, commercial products, or organizations does not
imply endorsement by the U. S. Government. This work is original and has
not been published elsewhere.
NR 32
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U1 0
U2 0
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0269-9370
J9 AIDS
JI Aids
PD FEB 20
PY 2010
VL 24
IS 4
BP 535
EP 543
DI 10.1097/QAD.0b013e328331f6e2
PG 9
WC Immunology; Infectious Diseases; Virology
SC Immunology; Infectious Diseases; Virology
GA 563QK
UT WOS:000275148000006
PM 19926961
ER
PT J
AU Landrum, ML
Hullsiek, KH
Ganesan, A
Weintrob, AC
Crum-Cianflone, NF
Barthel, RV
O'Connell, RJ
Fieberg, A
Chun, HM
Marconi, VC
Dolan, MJ
Agan, BK
AF Landrum, Michael L.
Hullsiek, Katherine Huppler
Ganesan, Anuradha
Weintrob, Amy C.
Crum-Cianflone, Nancy F.
Barthel, R. Vincent
O'Connell, Robert J.
Fieberg, Ann
Chun, Helen M.
Marconi, Vincent C.
Dolan, Matthew J.
Agan, Brian K.
CA Infect Dis Clinical Res Program
TI Hepatitis B vaccination and risk of hepatitis B infection in
HIV-infected individuals
SO AIDS
LA English
DT Article
DE hepatitis B vaccine; hepatitis B virus; human immunodeficiency virus;
immunization; vaccination
ID HUMAN-IMMUNODEFICIENCY-VIRUS; LONG-TERM IMMUNOGENICITY; T-CELL
RESPONSES; HOMOSEXUAL-MEN; ANTIRETROVIRAL THERAPY; UNITED-STATES;
EFFICACY; ANTIBODY; COHORT; TRIAL
AB Objective: To assess the association of hepatitis B virus (HBV) vaccination with risk of HBV infection among HIV-infected patients and HBV infection risk factors among vaccinees.
Design: Observational cohort study.
Methods: Participants enrolled from 1986 through 2004, unvaccinated and serologically negative for HBV infection at the time of HIV diagnosis, were followed longitudinally through 2007 for the occurrence of HBV infection. Risk factors for HBV infection were evaluated using time to event methods, including Kaplan-Meier survival curves and Cox proportional hazards models.
Results: During 11 632 person-years of follow-up, the rate of HBV infection was 2.01 (95% CI 1.75-2.27)/100 person-years. Receipt of at least one dose of vaccine was not associated with reduced risk of HBV (unadjusted hazard ratio 0.86, 95% CI 0.7-1.1; adjusted hazard ratio 1.08, 95% CI 0.8-1.4). Receipt of three or more doses of vaccine was also not associated with reduced risk (hazard ratio 0.96; 95% CI 0.56-1.64). Among 409 vaccinees with HBsAb less than 10 IU/l, 46 (11.2%) developed HBV infection compared with 11 of 217 (5.1%) vaccinees with HBsAb >= 10 IU/l (hazard ratio 0.51; 95% CI 0.3-1.0). In participants with initial HBsAb less than 10 IU/l, 16 of 46 (35%) infections were chronic, compared with none of 11 in those with initial HBsAb at least 10 IU/l (P = 0.02).
Conclusion: Overall, HBV vaccination was not associated with reduced risk of HBV infection in our cohort of HIV-infected individuals. However, the small subset of vaccinees with a positive vaccine response may have had reduced HBV infection risk, including chronic disease. Improvements in vaccine delivery and immunogenicity are needed to increase HBV vaccine effectiveness in HIV-infected patients. (C) 2010 Wolters Kluwer Health vertical bar Lippincott Williams & Wilkins
C1 [Landrum, Michael L.; Marconi, Vincent C.; Dolan, Matthew J.] San Antonio Mil Med Ctr, Ft Sam Houston, TX USA.
[Landrum, Michael L.; Hullsiek, Katherine Huppler; Ganesan, Anuradha; Weintrob, Amy C.; Crum-Cianflone, Nancy F.; O'Connell, Robert J.; Fieberg, Ann; Marconi, Vincent C.; Agan, Brian K.] Uniformed Serv Univ Hlth Sci, Infect Dis Clin Res Program, Bethesda, MD USA.
[Hullsiek, Katherine Huppler; Fieberg, Ann] Univ Minnesota, Minneapolis, MN USA.
[Ganesan, Anuradha] Natl Naval Med Ctr, Bethesda, MD USA.
[Weintrob, Amy C.] Walter Reed Army Med Ctr, Washington, DC 20307 USA.
[Crum-Cianflone, Nancy F.] Naval Med Ctr, San Diego, CA USA.
[Barthel, R. Vincent] Naval Med Ctr, Portsmouth, VA USA.
[O'Connell, Robert J.] Walter Reed Army Inst Res, Div Retrovirol, Silver Spring, MD USA.
[Chun, Helen M.] Naval Hlth Res Ctr, San Diego, CA USA.
RP Landrum, ML (reprint author), Brooke Army Med Ctr, Infect Dis Serv, MCHE MDI, 3851 Roger Brooke Dr, Ft Sam Houston, TX 78234 USA.
EM mlandrum@idcrp.org
RI Marconi, Vincent/N-3210-2014;
OI Marconi, Vincent/0000-0001-8409-4689; Agan, Brian/0000-0002-5114-1669
FU NIAID NIH HHS [HU0001-05-2-0011]; PHS HHS [HU0001-05-2-0011]
NR 54
TC 25
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U1 0
U2 0
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0269-9370
J9 AIDS
JI Aids
PD FEB 20
PY 2010
VL 24
IS 4
BP 545
EP 555
DI 10.1097/QAD.0b013e32832cd99e
PG 11
WC Immunology; Infectious Diseases; Virology
SC Immunology; Infectious Diseases; Virology
GA 563QK
UT WOS:000275148000007
PM 19487908
ER
PT J
AU Gopalswamy, N
Xie, H
Makela, P
Akiyama, S
Yashiro, S
Kaiser, ML
Howard, RA
Bougeret, JL
AF Gopalswamy, N.
Xie, H.
Makela, P.
Akiyama, S.
Yashiro, S.
Kaiser, M. L.
Howard, R. A.
Bougeret, J. -L.
TI INTERPLANETARY SHOCKS LACKING TYPE II RADIO BURSTS
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE shock waves; solar wind; Sun: coronal mass ejections (CMEs); Sun:
flares; Sun: particle emission; Sun: radio radiation
ID CORONAL MASS EJECTIONS; ENERGETIC PARTICLE EVENTS; SOLAR-WIND; MAGNETIC
CLOUDS; SPACE WEATHER; PLASMA BETA; LARGE-ANGLE; NEAR-SUN; 1 AU; WAVES
AB We report on the radio-emission characteristics of 222 interplanetary (IP) shocks detected by spacecraft at Sun-Earth L1 during solar cycle 23 (1996 to 2006, inclusive). A surprisingly large fraction of the IP shocks (similar to 34%) was radio quiet (RQ; i.e., the shocks lacked type II radio bursts). We examined the properties of coronal mass ejections (CMEs) and soft X-ray flares associated with such RQ shocks and compared them with those of the radio-loud (RL) shocks. The CMEs associated with the RQ shocks were generally slow (average speed similar to 535 km s(-1)) and only similar to 40% of the CMEs were halos. The corresponding numbers for CMEs associated with RL shocks were 1237 km s(-1) and 72%, respectively. Thus, the CME kinetic energy seems to be the deciding factor in the radio-emission properties of shocks. The lower kinetic energy of CMEs associated with RQ shocks is also suggested by the lower peak soft X-ray flux of the associated flares (C3.4 versus M4.7 for RL shocks). CMEs associated with RQ CMEs were generally accelerating within the coronagraph field of view (average acceleration similar to+6.8 m s(-2)), while those associated with RL shocks were decelerating (average acceleration similar to-3.5 m s(-2)). This suggests that many of the RQ shocks formed at large distances from the Sun, typically beyond 10 Rs, consistent with the absence of metric and decameter-hectometric (DH) type II radio bursts. A small fraction of RL shocks had type II radio emission solely in the kilometric (km) wavelength domain. Interestingly, the kinematics of the CMEs associated with the km type II bursts is similar to those of RQ shocks, except that the former are slightly more energetic. Comparison of the shock Mach numbers at 1 AU shows that the RQ shocks are mostly subcritical, suggesting that they were not efficient in accelerating electrons. The Mach number values also indicate that most of these are quasi-perpendicular shocks. The radio-quietness is predominant in the rise phase and decreases through the maximum and declining phases of solar cycle 23. About 18% of the IP shocks do not have discernible ejecta behind them. These shocks are due to CMEs moving at large angles from the Sun-Earth line and hence are not blast waves. The solar sources of the shock-driving CMEs follow the sunspot butterfly diagram, consistent with the higher-energy requirement for driving shocks.
C1 [Gopalswamy, N.; Kaiser, M. L.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Xie, H.; Makela, P.; Akiyama, S.] Catholic Univ Amer, Washington, DC 20064 USA.
[Yashiro, S.] Interferometrics, Herndon, VA 20170 USA.
[Howard, R. A.] USN, Res Lab, Washington, DC 20375 USA.
[Bougeret, J. -L.] Observ Paris, Meudon, France.
RP Gopalswamy, N (reprint author), NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
EM nat.gopalswamy@nasa.gov
RI Gopalswamy, Nat/D-3659-2012;
OI Gopalswamy, Nat/0000-0001-5894-9954
FU NASA's LWS TRT and SRT
FX We thank J. C. Kasper and A. Vinas for their help in obtaining shock
Mach numbers. This work was supported by NASA's LWS TR&T and SR&T
programs. We thank the anonymous referee for critical comments that
helped improve the presentation of the paper.
NR 71
TC 45
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U1 0
U2 2
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
J9 ASTROPHYS J
JI Astrophys. J.
PD FEB 20
PY 2010
VL 710
IS 2
BP 1111
EP 1126
DI 10.1088/0004-6256/710/2/1111
PG 16
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 551TN
UT WOS:000274233300017
ER
PT J
AU Abdo, AA
Ackermann, M
Ajello, M
Atwood, WB
Axelsson, M
Baldini, L
Ballet, J
Barbiellini, G
Bastieri, D
Bechtol, K
Bellazzini, R
Berenji, B
Blandford, RD
Bloom, ED
Bonamente, E
Borgland, AW
Bouvier, A
Bregeon, J
Brez, A
Brigida, M
Bruel, P
Burnett, TH
Buson, S
Caliandro, GA
Cameron, RA
Caraveo, PA
Carrigan, S
Casandjian, JM
Cavazzuti, E
Cecchi, C
Celik, O
Charles, E
Chekhtman, A
Cheung, CC
Chiang, J
Ciprini, S
Claus, R
Cohen-Tanugi, J
Conrad, J
Cutini, S
Dermer, CD
de Angelis, A
de Palma, F
Digel, SW
Silva, EDE
Drell, PS
Dubois, R
Dumora, D
Farnier, C
Favuzzi, C
Fegan, SJ
Focke, WB
Fortin, P
Frailis, M
Fukazawa, Y
Funk, S
Fusco, P
Gargano, F
Gasparrini, D
Gehrels, N
Germani, S
Giebels, B
Giglietto, N
Giommi, P
Giordano, F
Glanzman, T
Godfrey, G
Grenier, IA
Grondin, MH
Grove, JE
Guillemot, L
Guiriec, S
Harding, AK
Hartman, RC
Hayashida, M
Hays, E
Healey, SE
Horan, D
Hughes, RE
Jackson, MS
Johannesson, G
Johnson, AS
Johnson, WN
Kamae, T
Katagiri, H
Kataoka, J
Kawai, N
Kerr, M
Knodlseder, J
Kuss, M
Lande, J
Latronico, L
Lemoine-Goumard, M
Longo, F
Loparco, F
Lott, B
Lovellette, MN
Lubrano, P
Madejski, GM
Makeev, A
Mazziotta, MN
McConville, W
McEnery, JE
Meurer, C
Michelson, PF
Mitthumsiri, W
Mizuno, T
Moiseev, AA
Monte, C
Monzani, ME
Morselli, A
Moskalenko, IV
Murgia, S
Nolan, PL
Norris, JP
Nuss, E
Ohsugi, T
Omodei, N
Orlando, E
Ormes, JF
Paneque, D
Panetta, JH
Parent, D
Pelassa, V
Pepe, M
Persic, M
Pesce-Rollins, M
Piron, F
Porter, TA
Raino, S
Rando, R
Razzano, M
Reimer, A
Reimer, O
Reposeur, T
Ritz, S
Rochester, LS
Rodriguez, AY
Romani, RW
Roth, M
Ryde, F
Sadrozinski, HFW
Sanchez, D
Sander, A
Parkinson, PMS
Scargle, JD
Sgro, C
Siskind, EJ
Smith, DA
Smith, PD
Spandre, G
Spinelli, P
Strickman, MS
Suson, DJ
Tajima, H
Takahashi, H
Takahashi, T
Tanaka, T
Thayer, JB
Thayer, JG
Thompson, DJ
Tibaldo, L
Torres, DF
Tosti, G
Tramacere, A
Uchiyama, Y
Usher, TL
Vasileiou, V
Vilchez, N
Villata, M
Vitale, V
Waite, AP
Wang, P
Winer, BL
Wood, KS
Ylinen, T
Ziegler, M
AF Abdo, A. A.
Ackermann, M.
Ajello, M.
Atwood, W. B.
Axelsson, M.
Baldini, L.
Ballet, J.
Barbiellini, G.
Bastieri, D.
Bechtol, K.
Bellazzini, R.
Berenji, B.
Blandford, R. D.
Bloom, E. D.
Bonamente, E.
Borgland, A. W.
Bouvier, A.
Bregeon, J.
Brez, A.
Brigida, M.
Bruel, P.
Burnett, T. H.
Buson, S.
Caliandro, G. A.
Cameron, R. A.
Caraveo, P. A.
Carrigan, S.
Casandjian, J. M.
Cavazzuti, E.
Cecchi, C.
Celik, Oe
Charles, E.
Chekhtman, A.
Cheung, C. C.
Chiang, J.
Ciprini, S.
Claus, R.
Cohen-Tanugi, J.
Conrad, J.
Cutini, S.
Dermer, C. D.
de Angelis, A.
de Palma, F.
Digel, S. W.
do Couto e Silva, E.
Drell, P. S.
Dubois, R.
Dumora, D.
Farnier, C.
Favuzzi, C.
Fegan, S. J.
Focke, W. B.
Fortin, P.
Frailis, M.
Fukazawa, Y.
Funk, S.
Fusco, P.
Gargano, F.
Gasparrini, D.
Gehrels, N.
Germani, S.
Giebels, B.
Giglietto, N.
Giommi, P.
Giordano, F.
Glanzman, T.
Godfrey, G.
Grenier, I. A.
Grondin, M. -H.
Grove, J. E.
Guillemot, L.
Guiriec, S.
Harding, A. K.
Hartman, R. C.
Hayashida, M.
Hays, E.
Healey, S. E.
Horan, D.
Hughes, R. E.
Jackson, M. S.
Johannesson, G.
Johnson, A. S.
Johnson, W. N.
Kamae, T.
Katagiri, H.
Kataoka, J.
Kawai, N.
Kerr, M.
Knoedlseder, J.
Kuss, M.
Lande, J.
Latronico, L.
Lemoine-Goumard, M.
Longo, F.
Loparco, F.
Lott, B.
Lovellette, M. N.
Lubrano, P.
Madejski, G. M.
Makeev, A.
Mazziotta, M. N.
McConville, W.
McEnery, J. E.
Meurer, C.
Michelson, P. F.
Mitthumsiri, W.
Mizuno, T.
Moiseev, A. A.
Monte, C.
Monzani, M. E.
Morselli, A.
Moskalenko, I. V.
Murgia, S.
Nolan, P. L.
Norris, J. P.
Nuss, E.
Ohsugi, T.
Omodei, N.
Orlando, E.
Ormes, J. F.
Paneque, D.
Panetta, J. H.
Parent, D.
Pelassa, V.
Pepe, M.
Persic, M.
Pesce-Rollins, M.
Piron, F.
Porter, T. A.
Raino, S.
Rando, R.
Razzano, M.
Reimer, A.
Reimer, O.
Reposeur, T.
Ritz, S.
Rochester, L. S.
Rodriguez, A. Y.
Romani, R. W.
Roth, M.
Ryde, F.
Sadrozinski, H. F. -W.
Sanchez, D.
Sander, A.
Parkinson, P. M. Saz
Scargle, J. D.
Sgro, C.
Siskind, E. J.
Smith, D. A.
Smith, P. D.
Spandre, G.
Spinelli, P.
Strickman, M. S.
Suson, D. J.
Tajima, H.
Takahashi, H.
Takahashi, T.
Tanaka, T.
Thayer, J. B.
Thayer, J. G.
Thompson, D. J.
Tibaldo, L.
Torres, D. F.
Tosti, G.
Tramacere, A.
Uchiyama, Y.
Usher, T. L.
Vasileiou, V.
Vilchez, N.
Villata, M.
Vitale, V.
Waite, A. P.
Wang, P.
Winer, B. L.
Wood, K. S.
Ylinen, T.
Ziegler, M.
TI SPECTRAL PROPERTIES OF BRIGHT FERMI-DETECTED BLAZARS IN THE GAMMA-RAY
BAND
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE BL Lacertae objects: general; galaxies: active; galaxies: jets; gamma
rays: general
ID ACTIVE GALACTIC NUCLEI; LARGE-AREA TELESCOPE; SOURCE LIST; EGRET DATA;
SYNCHROTRON; EMISSION; ACCELERATION; RADIATION; CATALOG; MODEL
AB The gamma-ray energy spectra of bright blazars of the LAT Bright AGN Sample LBAS) are investigated using Fermi-LAT data. Spectral properties hardness, curvature, and variability) established using a data set accumulated over 6 months of operation are presented and discussed for different blazar classes and subclasses: flat spectrum radio quasars (FSRQs), low-synchrotron peaked BLLacs (LSP-BLLacs), intermediate-synchrotron peaked BLLacs (ISP-BLLacs), and high-synchrotron peaked BLLacs (HSP-BLLacs). The distribution of photon index G, obtained from a power-law fit above 100 MeV) is found to correlate strongly with blazar subclass. The change in spectral index from that averaged over the 6 months observing period is < 0.2-0.3 when the flux varies by about an order of magnitude, with a tendency toward harder spectra when the flux is brighter for FSRQs and LSP-BLLacs. A strong departure from a single power-law spectrum appears to be a common feature for FSRQs. This feature is also present for some high-luminosity LSP-BLLacs, and a small number of ISP-BLLacs. It is absent in all LBAS HSP-BLLacs. For 3C 454.3 and AO 0235+164, the two brightest FSRQ source and LSP-BLLac source, respectively, a broken power law (BPL) gives the most acceptable of power law, BPL, and curved forms. The consequences of these findings are discussed.
C1 [Dumora, D.; Grondin, M. -H.; Guillemot, L.; Lemoine-Goumard, M.; Lott, B.; Parent, D.; Reposeur, T.; Smith, D. A.] CEN Bordeaux Gradignan, CNRS, IN2P3, UMR 5797, F-33175 Gradignan, France.
[Abdo, A. A.; Chekhtman, A.; Cheung, C. C.; Dermer, C. D.; Grove, J. E.; Johnson, W. N.; Lovellette, M. N.; Makeev, A.; Parent, D.; Strickman, M. S.; Wood, K. S.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Abdo, A. A.; Cheung, C. C.] Natl Acad Sci, Natl Res Council Res Associate, Washington, DC 20001 USA.
[Ackermann, M.; Ajello, M.; Bechtol, K.; Berenji, B.; Blandford, R. D.; Bloom, E. D.; Borgland, A. W.; Bouvier, A.; Cameron, R. A.; Charles, E.; Chiang, J.; Claus, R.; Digel, S. W.; do Couto e Silva, E.; Drell, P. S.; Dubois, R.; Focke, W. B.; Funk, S.; Glanzman, T.; Godfrey, G.; Hayashida, M.; Healey, S. E.; Johannesson, G.; Johnson, A. S.; Kamae, T.; Lande, J.; Madejski, G. M.; Michelson, P. F.; Mitthumsiri, W.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Nolan, P. L.; Paneque, D.; Panetta, J. H.; Reimer, A.; Reimer, O.; Rochester, L. S.; Romani, R. W.; Tajima, H.; Tanaka, T.; Thayer, J. B.; Thayer, J. G.; Tramacere, A.; Uchiyama, Y.; Usher, T. L.; Waite, A. P.; Wang, P.] Stanford Univ, Kavli Inst Particle Astrophys & Cosmol, Dept Phys, WW Hansen Expt Phys Lab, Stanford, CA 94305 USA.
[Ackermann, M.; Ajello, M.; Bechtol, K.; Berenji, B.; Blandford, R. D.; Bloom, E. D.; Borgland, A. W.; Bouvier, A.; Cameron, R. A.; Charles, E.; Chiang, J.; Claus, R.; Digel, S. W.; do Couto e Silva, E.; Drell, P. S.; Dubois, R.; Focke, W. B.; Funk, S.; Glanzman, T.; Godfrey, G.; Hayashida, M.; Healey, S. E.; Johannesson, G.; Johnson, A. S.; Kamae, T.; Lande, J.; Madejski, G. M.; Michelson, P. F.; Mitthumsiri, W.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Nolan, P. L.; Paneque, D.; Panetta, J. H.; Reimer, A.; Reimer, O.; Rochester, L. S.; Romani, R. W.; Tajima, H.; Tanaka, T.; Thayer, J. B.; Thayer, J. G.; Tramacere, A.; Uchiyama, Y.; Usher, T. L.; Waite, A. P.; Wang, P.] Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA.
[Atwood, W. B.; Porter, T. A.; Ritz, S.; Sadrozinski, H. F. -W.; Parkinson, P. M. Saz; Ziegler, M.] Univ Calif Santa Cruz, Dept Phys, Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA.
[Atwood, W. B.; Porter, T. A.; Ritz, S.; Sadrozinski, H. F. -W.; Parkinson, P. M. Saz; Ziegler, M.] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA.
[Axelsson, M.] Stockholm Univ, Dept Astron, SE-10691 Stockholm, Sweden.
[Axelsson, M.; Jackson, M. S.; Meurer, C.; Ryde, F.; Ylinen, T.] AlbaNova, Oskar Klein Ctr Cosmoparticle Phys, SE-10691 Stockholm, Sweden.
[Baldini, L.; Bellazzini, R.; Bregeon, J.; Brez, A.; Kuss, M.; Latronico, L.; Omodei, N.; Pesce-Rollins, M.; Razzano, M.; Sgro, C.; Spandre, G.] Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy.
[Ballet, J.; Casandjian, J. M.; Grenier, I. A.; Tibaldo, L.] Univ Paris Diderot, CNRS, CEA IRFU, Lab AIM,Serv Astrophys,CEA Saclay, F-91191 Gif Sur Yvette, France.
[Barbiellini, G.; Persic, M.] 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.; Tibaldo, L.] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy.
[Bastieri, D.; Carrigan, S.; Rando, R.; Tibaldo, L.] Univ Padua, Dipartimento Fis G Galilei, I-35131 Padua, Italy.
[Bonamente, E.; Cecchi, C.; Germani, S.; Lubrano, P.; Pepe, M.; Tosti, G.] Ist Nazl Fis Nucl, Sez Perugia, I-06123 Perugia, Italy.
[Bonamente, E.; Cecchi, C.; Ciprini, S.; Germani, S.; Lubrano, P.; Pepe, M.; Tosti, G.] Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Giglietto, N.; Giordano, F.; Loparco, F.; Monte, C.; Raino, S.; Spinelli, P.] Univ Policlin Bari, Dipartimento Fis M Merlin, I-70126 Bari, Italy.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Gargano, F.; Giglietto, N.; Giordano, F.; Loparco, F.; Mazziotta, M. N.; Monte, C.; Raino, S.; Spinelli, P.] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy.
[Bruel, P.; Fegan, S. J.; Fortin, P.; Giebels, B.; Horan, D.; Sanchez, D.] Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France.
[Burnett, T. H.; Kerr, M.; Roth, M.] Univ Washington, Dept Phys, Seattle, WA 98195 USA.
[Caliandro, G. A.; Rodriguez, A. Y.; Torres, D. F.] IEEC CSIC, Inst Ciencies Espai, Barcelona 08193, Spain.
[Caraveo, P. A.] Ist Astrofis Spaziale & Fis Cosm, INAF, I-20133 Milan, Italy.
[Cavazzuti, E.; Cutini, S.; Gasparrini, D.; Giommi, P.] Agenzia Spaziale Italiana ASI Sci Data Ctr, I-00044 Rome, Italy.
[Celik, Oe; Gehrels, N.; Harding, A. K.; Hartman, R. C.; Hays, E.; McConville, W.; McEnery, J. E.; Moiseev, A. A.; Thompson, D. J.; Vasileiou, V.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Celik, Oe; Moiseev, A. A.; Vasileiou, V.] NASA, Ctr Res & Explorat Space Sci & Technol, Greenbelt, MD 20771 USA.
[Celik, Oe; Vasileiou, V.] Univ Maryland Baltimore Cty, Dept Phys, Baltimore, MD 21250 USA.
[Celik, Oe; Vasileiou, V.] Univ Maryland Baltimore Cty, Ctr Space Sci & Technol, Baltimore, MD 21250 USA.
[Chekhtman, A.; Makeev, A.; Parent, D.] George Mason Univ, Fairfax, VA 22030 USA.
[Cohen-Tanugi, J.; Farnier, C.; Nuss, E.; Pelassa, V.; Piron, F.] Univ Montpellier 2, CNRS, IN2P3, Lab Phys Theor & Astroparticule, Montpellier, France.
[Conrad, J.; Meurer, C.] Stockholm Univ, Dept Phys, AlbaNova, SE-10691 Stockholm, Sweden.
[de Angelis, A.; Frailis, M.] Univ Udine, Dipartimento Fis, I-33100 Udine, Italy.
[de Angelis, A.; Frailis, M.] Ist Nazl Fis Nucl, Sez Trieste, I-33100 Udine, Italy.
[Dumora, D.; Grondin, M. -H.; Guillemot, L.; Lemoine-Goumard, M.; Lott, B.; Parent, D.; Reposeur, T.; Smith, D. A.] Univ Bordeaux, Ctr Etud Nucl Bordeaux Gradignan, UMR 5797, F-33175 Gradignan, France.
[Frailis, M.; Persic, M.] Osserv Astron Trieste, Ist Nazl Astrofis, I-34143 Trieste, Italy.
[Fukazawa, Y.; Katagiri, H.; Mizuno, T.; Ohsugi, T.; Takahashi, H.] Hiroshima Univ, Dept Phys Sci, Hiroshima 7398526, Japan.
[Gehrels, N.] Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA.
[Gehrels, N.; McConville, W.; McEnery, J. E.; Moiseev, A. A.] Univ Maryland, Dept Phys, College Pk, MD 20742 USA.
[Gehrels, N.; McConville, W.; McEnery, J. E.; Moiseev, A. A.] Univ Maryland, Dept Astron, College Pk, MD 20742 USA.
[Guillemot, L.] Max Planck Inst Radioastron, D-53121 Bonn, Germany.
[Guiriec, S.] Univ Alabama, Ctr Space Plasma & Aeron Res, Huntsville, AL 35899 USA.
[Hughes, R. E.; Sander, A.; Smith, P. D.; Winer, B. L.] Ohio State Univ, Dept Phys, Ctr Cosmol & Astro Particle Phys, Columbus, OH 43210 USA.
[Jackson, M. S.; Ryde, F.; Ylinen, T.] AlbaNova, Royal Inst Technol KTH, Dept Phys, SE-10691 Stockholm, Sweden.
[Kataoka, J.] Waseda Univ, Res Inst Sci & Engn, Shinjuku Ku, Tokyo 1698555, Japan.
[Kawai, N.] Tokyo Inst Technol, Dept Phys, Meguro, Tokyo 1528551, Japan.
[Kawai, N.] RIKEN, Inst Phys & Chem Res, Cosm Radiat Lab, Wako, Saitama 3510198, Japan.
[Knoedlseder, J.; Vilchez, N.] UPS, CNRS, Ctr Etud Spatiale Rayonnements, F-31028 Toulouse 4, France.
[Morselli, A.; Vitale, V.] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, I-00133 Rome, Italy.
[Norris, J. P.; Ormes, J. F.] Univ Denver, Dept Phys & Astron, Denver, CO 80208 USA.
[Orlando, E.] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany.
[Reimer, A.; Reimer, O.] Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria.
[Reimer, A.; Reimer, O.] Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria.
[Scargle, J. D.] NASA, Ames Res Ctr, Div Space Sci, Moffett Field, CA 94035 USA.
[Siskind, E. J.] NYCB Real Time Comp Inc, Lattingtown, NY 11560 USA.
[Suson, D. J.] Purdue Univ Calumet, Dept Chem & Phys, Hammond, IN 46323 USA.
[Takahashi, T.] JAXA, Inst Space & Astronaut Sci, Sagamihara, Kanagawa 2298510, Japan.
[Torres, D. F.] ICREA, Barcelona, Spain.
[Tramacere, A.] CIFS, I-10133 Turin, Italy.
[Villata, M.] Osserv Astron Torino, INAF, I-10025 Pino Torinese, Italy.
[Vitale, V.] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy.
[Ylinen, T.] Univ Kalmar, Sch Pure & Appl Nat Sci, SE-39182 Kalmar, Sweden.
RP Lott, B (reprint author), CEN Bordeaux Gradignan, CNRS, IN2P3, UMR 5797, F-33175 Gradignan, France.
EM lott@cenbg.in2p3.fr
RI Reimer, Olaf/A-3117-2013; Funk, Stefan/B-7629-2015; Loparco,
Francesco/O-8847-2015; Johannesson, Gudlaugur/O-8741-2015; Gargano,
Fabio/O-8934-2015; Moskalenko, Igor/A-1301-2007; Mazziotta, Mario
/O-8867-2015; Sgro, Carmelo/K-3395-2016; Torres, Diego/O-9422-2016;
Johnson, Neil/G-3309-2014; Thompson, David/D-2939-2012; Harding,
Alice/D-3160-2012; Gehrels, Neil/D-2971-2012; McEnery,
Julie/D-6612-2012; Baldini, Luca/E-5396-2012; lubrano,
pasquale/F-7269-2012; Morselli, Aldo/G-6769-2011; Nolan,
Patrick/A-5582-2009; Kuss, Michael/H-8959-2012; giglietto,
nicola/I-8951-2012; Tosti, Gino/E-9976-2013; Rando,
Riccardo/M-7179-2013; Hays, Elizabeth/D-3257-2012;
OI Reimer, Olaf/0000-0001-6953-1385; Funk, Stefan/0000-0002-2012-0080;
Loparco, Francesco/0000-0002-1173-5673; Johannesson,
Gudlaugur/0000-0003-1458-7036; Gargano, Fabio/0000-0002-5055-6395;
Moskalenko, Igor/0000-0001-6141-458X; Mazziotta, Mario
/0000-0001-9325-4672; Torres, Diego/0000-0002-1522-9065; Rando,
Riccardo/0000-0001-6992-818X; Sgro', Carmelo/0000-0001-5676-6214;
Giordano, Francesco/0000-0002-8651-2394; Villata,
Massimo/0000-0003-1743-6946; giommi, paolo/0000-0002-2265-5003; De
Angelis, Alessandro/0000-0002-3288-2517; Frailis,
Marco/0000-0002-7400-2135; Caraveo, Patrizia/0000-0003-2478-8018;
Bastieri, Denis/0000-0002-6954-8862; Omodei, Nicola/0000-0002-5448-7577;
Pesce-Rollins, Melissa/0000-0003-1790-8018; Axelsson,
Magnus/0000-0003-4378-8785; Cutini, Sara/0000-0002-1271-2924; Thompson,
David/0000-0001-5217-9135; lubrano, pasquale/0000-0003-0221-4806;
Morselli, Aldo/0000-0002-7704-9553; giglietto,
nicola/0000-0002-9021-2888; Berenji, Bijan/0000-0002-4551-772X;
Gasparrini, Dario/0000-0002-5064-9495; Tramacere,
Andrea/0000-0002-8186-3793; Baldini, Luca/0000-0002-9785-7726
FU Royal Swedish Academy of Sciences Research Fellow; K. A. Wallenberg
Foundation
FX Royal Swedish Academy of Sciences Research Fellow, funded by a grant
from the K. A. Wallenberg Foundation.
NR 35
TC 113
Z9 114
U1 1
U2 7
PU IOP PUBLISHING LTD
PI BRISTOL
PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
EI 1538-4357
J9 ASTROPHYS J
JI Astrophys. J.
PD FEB 20
PY 2010
VL 710
IS 2
BP 1271
EP 1285
DI 10.1088/0004-637X/710/2/1271
PG 15
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 551TN
UT WOS:000274233300027
ER
PT J
AU Baines, EK
Dollinger, MP
Cusano, F
Guenther, EW
Hatzes, AP
McAlister, HA
ten Brummelaar, TA
Turner, NH
Sturmann, J
Sturmann, L
Goldfinger, PJ
Farrington, CD
Ridgway, ST
AF Baines, Ellyn K.
Doellinger, Michaela P.
Cusano, Felice
Guenther, Eike W.
Hatzes, Artie P.
McAlister, Harold A.
ten Brummelaar, Theo A.
Turner, Nils H.
Sturmann, Judit
Sturmann, Laszlo
Goldfinger, P. J.
Farrington, Christopher D.
Ridgway, Stephen T.
TI ANGULAR DIAMETERS AND EFFECTIVE TEMPERATURES OF 25 K GIANT STARS FROM
THE CHARA ARRAY
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE infrared: stars; planetary systems; stars: fundamental parameters;
techniques: interferometric; techniques: spectroscopic
ID SOLAR-LIKE OSCILLATIONS; INTERMEDIATE-MASS STARS; OPTICAL
INTERFEROMETER; PLANETARY COMPANIONS; DISCOVERY; SUPERGIANTS;
CALIBRATION; EXTINCTION; PARAMETERS; RADII
AB Using Georgia State University's Center for High Angular Resolution Astronomy Array interferometer, we measured angular diameters for 25 giant stars, six of which host exoplanets. The combination of these measurements and Hipparcos parallaxes produces physical linear radii for the sample. Except for two outliers, our values match angular diameters and physical radii estimated using photometric methods to within the associated errors with the advantage that our uncertainties are significantly lower. We also calculated the effective temperatures for the stars using the newly measured diameters. Our values do not match those derived from spectroscopic observations as well, perhaps due to the inherent properties of the methods used or because of a missing source of extinction in the stellar models that would affect the spectroscopic temperatures.
C1 [Baines, Ellyn K.] USN, Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
[Doellinger, Michaela P.] ESO, D-85748 Garching, Germany.
[Cusano, Felice; Guenther, Eike W.; Hatzes, Artie P.] Thuringer Landessternwarte Tautenburg, D-07778 Tautenburg, Germany.
[Baines, Ellyn K.; McAlister, Harold A.; ten Brummelaar, Theo A.; Turner, Nils H.; Sturmann, Judit; Sturmann, Laszlo; Goldfinger, P. J.; Farrington, Christopher D.] Georgia State Univ, Ctr High Angular Resolut Astron, Atlanta, GA 30302 USA.
[Ridgway, Stephen T.] Kitt Peak Natl Observ, Natl Opt Astron Observ, Tucson, AZ 85726 USA.
RP Baines, EK (reprint author), USN, Res Lab, Remote Sensing Div, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM ellyn.baines.ctr@nrl.navy.mil; mdoellin@eso.org;
cusano@tls-tautenburg.de; guenther@tls-tautenburg.de;
artie@tls-tautenburg.de; hal@chara.gsu.edu; theo@chara-array.org;
nils@chara-array.org; judit@chara-array.org; sturmann@chara-array.org;
pj@chara-array.org; farrington@chara-array.org; ridgway@noao.edu
OI Cusano, Felice/0000-0003-2910-6565
FU NSF [0606958]; Georgia State University; NASA [NNH09AK731]; University
of Massachusetts; Infrared Processing and Analysis Center/California
Institute of Technology; National Aeronautics and Space Administration;
National Science Foundation
FX Many thanks to Douglas Gies for his help and advice. The CHARA Array is
funded by the National Science Foundation through NSF grant AST-0606958
and by Georgia State University through the College of Arts and
Sciences, and S. T. R. acknowledges partial support by NASA grant
NNH09AK731. We are also grateful to the user support group of the
Alfred-Jensch telescope. This research has made use of the SIMBAD
database, operated at CDS, Strasbourg, France. This publication makes
use of data products from the 2MASS, which is a joint project of the
University of Massachusetts and the Infrared Processing and Analysis
Center/California Institute of Technology, funded by the National
Aeronautics and Space Administration and the National Science
Foundation.
NR 47
TC 28
Z9 28
U1 0
U2 1
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
J9 ASTROPHYS J
JI Astrophys. J.
PD FEB 20
PY 2010
VL 710
IS 2
BP 1365
EP 1374
DI 10.1088/0004-637X/710/2/1365
PG 10
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 551TN
UT WOS:000274233300034
ER
PT J
AU Doschek, GA
Landi, E
Warren, HP
Harra, LK
AF Doschek, G. A.
Landi, E.
Warren, H. P.
Harra, L. K.
TI BRIGHT POINTS AND JETS IN POLAR CORONAL HOLES OBSERVED BY THE
EXTREME-ULTRAVIOLET IMAGING SPECTROMETER ON HINODE
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE Sun: atmosphere; Sun: corona; Sun: UV radiation
ID X-RAY JETS; OPTICALLY THIN PLASMAS; DENSITY DIAGNOSTICS; ATOMIC
DATABASE; EMISSION-LINES; FILLING FACTOR; SOLAR REGIONS; FE XIII;
SI-VIII; TEMPERATURE
AB We present observations of polar coronal hole bright points (BPs) made with the Extreme-ultraviolet Imaging Spectrometer (EIS) on the Hinode spacecraft. The data consist of raster images of BPs in multiple spectral lines from mostly coronal ions, e. g., Fe x-Fe xv. The BPs are observed for short intervals and thus the data are snapshots of the BPs obtained during their evolution. The images reveal a complex unresolved temperature structure (EIS resolution is about 2 ''), with the highest temperature being about 2 x 10(6) K. Some BPs appear as small loops with temperatures that are highest near the top. But others are more point-like with surrounding structures. However, the thermal time evolution of the BPs is an important factor in their appearance. A BP may appear quite different at different times. We discuss one BP with an associated jet that is bright enough to allow statistically meaningful measurements. The jet Doppler speed along the line of sight is about 15-20 km s(-1). Electron densities of the BPs and the jet are typically near 109 cm(-3), which implies path lengths along the line of sight on the order of a few arcsec. We also construct differential emission measure curves for two of the best observed BPs. High spatial resolution (significantly better than 1 '') is required to fully resolve the BP structures.
C1 [Doschek, G. A.; Landi, E.; Warren, H. P.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Harra, L. K.] Univ Coll London, Mullard Space Sci Lab, Dorking RH5 6NT, Surrey, England.
RP Doschek, GA (reprint author), USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
EM george.doschek@nrl.navy.mil
RI Landi, Enrico/H-4493-2011;
OI Harra, Louise/0000-0001-9457-6200
FU JAXA; NAOJ; STFC; NASA [NNH06CD24C, NNG04ED07P, NNH09AL49I]; ESA; NSC
FX Hinode is a Japanese mission developed and launched by ISAS/JAXA,
collaborating with NAOJ as domestic partner, and NASA (USA) and STFC
(UK) as international partners. Scientific operation of the Hinode
mission is conducted by the Hinode science team organized at ISAS/JAXA.
This team mainly consists of scientists from institutes in the partner
countries. Support for the post-launch operation is provided by JAXA and
NAOJ, STFC, NASA, ESA (European Space Agency), and NSC (Norway). We are
grateful to the Hinode team for all their efforts in the design, build,
and operation of the mission. The authors acknowledge support from the
NASA Hinode program and from ONR/NRL 6.1 basic research funds. The work
of E. L. is supported by the NNH06CD24C, NNG04ED07P, NNH09AL49I, and
other NASA grants.
NR 38
TC 27
Z9 27
U1 1
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 FEB 20
PY 2010
VL 710
IS 2
BP 1806
EP 1824
DI 10.1088/0004-637X/710/2/1806
PG 19
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 551TN
UT WOS:000274233300072
ER
PT J
AU Abdo, AA
Ackermann, M
Ajello, M
Axelsson, M
Baldini, L
Ballet, J
Barbiellini, G
Bastieri, D
Baughman, BM
Bechtol, K
Bellazzini, R
Berenji, B
Blandford, RD
Bloom, ED
Bock, DCJ
Bogart, JR
Bonamente, E
Borgland, AW
Bouvier, A
Bregeon, J
Brez, A
Brigida, M
Bruel, P
Burnett, TH
Buson, S
Caliandro, GA
Cameron, RA
Caraveo, PA
Casandjian, JM
Cavazzuti, E
Cecchi, C
Celik, O
Chekhtman, A
Cheung, CC
Chiang, J
Ciprini, S
Claus, R
Cohen-Tanugi, J
Collmar, W
Cominsky, LR
Conrad, J
Corbel, S
Corbet, R
Costamante, L
Cutini, S
Dermer, CD
de Angelis, A
de Palma, F
Digel, SW
Silva, EDE
Drell, PS
Dubois, R
Dumora, D
Farnier, C
Favuzzi, C
Fegan, SJ
Ferrara, EC
Focke, WB
Fortin, P
Frailis, M
Fuhrmann, L
Fukazawa, Y
Funk, S
Fusco, P
Gargano, F
Gasparrini, D
Gehrels, N
Germani, S
Giebels, B
Giglietto, N
Giommi, P
Giordano, F
Giroletti, M
Glanzman, T
Godfrey, G
Grenier, IA
Grove, JE
Guillemot, L
Guiriec, S
Hanabata, Y
Harding, AK
Hayashida, M
Hays, E
Horan, D
Hughes, RE
Iafrate, G
Itoh, R
Jackson, MS
Johannesson, G
Johnson, AS
Johnson, WN
Kadler, M
Kamae, T
Katagiri, H
Kataoka, J
Kawai, N
Kerr, M
Knodlseder, J
Kocian, ML
Kuss, M
Lande, J
Larsson, S
Latronico, L
Lemoine-Goumard, M
Longo, F
Loparco, F
Lott, B
Lovellette, MN
Lubrano, P
Macquart, J
Madejski, GM
Makeev, A
Max-Moerbeck, W
Mazziotta, MN
McConville, W
McEnery, JE
McGlynn, S
Meurer, C
Michelson, F
Mitthumsiri, W
Mizuno, T
Moiseev, AA
Monte, C
Monzani, ME
Morselli, A
Moskalenko, IV
Murgia, S
Nestoras, I
Nolan, PL
Norris, JP
Nuss, E
Ohsugi, T
Okumura, A
Omodei, N
Orlando, E
Ormes, JF
Paneque, D
Panetta, JH
Parent, D
Pavlidou, V
Pearson, TJ
Pelassa, V
Pepe, M
Pesce-Rollins, M
Piron, F
Porter, TA
Raino, S
Rando, R
Razzano, M
Readhead, A
Reimer, A
Reimer, O
Reposeur, T
Reyes, LC
Richards, JL
Rochester, LS
Rodriguez, AY
Roth, M
Ryde, F
Sadrozinski, HFW
Sanchez, D
Sander, A
Parkinson, PMS
Scargle, JD
Sgro, C
Shaw, MS
Shrader, C
Siskind, EJ
Smith, DA
Smith, PD
Spandre, G
Spinelli, P
Stawarz, L
Stevenson, M
Strickman, MS
Suson, DJ
Tajima, H
Takahashi, H
Takahashi, T
Tanaka, T
Taylor, GB
Thayer, JB
Thayer, JG
Thompson, DJ
Tibaldo, L
Torres, DF
Tosti, G
Tramacere, A
Uchiyama, Y
Usher, TL
Vasileiou, V
Vilchez, N
Vitale, V
Waite, AP
Wang, P
Wehrle, AE
Winer, BL
Wood, KS
Ylinen, T
Zensus, JA
Ziegler, M
Uemura, M
Ikejiri, Y
Kawabata, KS
Kino, M
Sakimoto, K
Sasada, M
Sato, S
Yamanaka, M
Villata, M
Raiteri, CM
Agudo, I
Aller, HD
Aller, MF
Angelakis, E
Arkharov, AA
Bach, U
Benitez, E
Berdyugin, A
Blinov, DA
Boettcher, M
Buemi, CS
Chen, WP
Dolci, M
Dultzin, D
Efimova, NV
Gurwell, MA
Gusbar, C
Gomez, JL
Heidt, J
Hiriart, D
Hovatta, T
Jorstad, SG
Konstantinova, TS
Kopatskaya, EN
Koptelova, E
Kurtanidze, OM
Lahteenmaki, A
Larionov, VM
Larionova, EG
Leto, P
Lin, HC
Lindfors, E
Marscher, AP
McHardy, IM
Melnichuk, DA
Mommert, M
Nilsson, K
Di Paola, A
Reinthal, R
Richter, GM
Roca-Sogorb, M
Roustazadeh, P
Sigua, LA
Takalo, LO
Tornikoski, M
Trigilio, C
Troitsky, IS
Umana, G
Villforth, C
Grainge, K
Moderski, R
Nalewajko, K
Sikora, M
AF Abdo, A. A.
Ackermann, M.
Ajello, M.
Axelsson, M.
Baldini, L.
Ballet, J.
Barbiellini, G.
Bastieri, D.
Baughman, B. M.
Bechtol, K.
Bellazzini, R.
Berenji, B.
Blandford, R. D.
Bloom, E. D.
Bock, D. C. -J.
Bogart, J. R.
Bonamente, E.
Borgland, A. W.
Bouvier, A.
Bregeon, J.
Brez, A.
Brigida, M.
Bruel, P.
Burnett, T. H.
Buson, S.
Caliandro, G. A.
Cameron, R. A.
Caraveo, P. A.
Casandjian, J. M.
Cavazzuti, E.
Cecchi, C.
Celik, Oe
Chekhtman, A.
Cheung, C. C.
Chiang, J.
Ciprini, S.
Claus, R.
Cohen-Tanugi, J.
Collmar, W.
Cominsky, L. R.
Conrad, J.
Corbel, S.
Corbet, R.
Costamante, L.
Cutini, S.
Dermer, C. D.
de Angelis, A.
de Palma, F.
Digel, S. W.
do Couto e Silva, E.
Drell, P. S.
Dubois, R.
Dumora, D.
Farnier, C.
Favuzzi, C.
Fegan, S. J.
Ferrara, E. C.
Focke, W. B.
Fortin, P.
Frailis, M.
Fuhrmann, L.
Fukazawa, Y.
Funk, S.
Fusco, P.
Gargano, F.
Gasparrini, D.
Gehrels, N.
Germani, S.
Giebels, B.
Giglietto, N.
Giommi, P.
Giordano, F.
Giroletti, M.
Glanzman, T.
Godfrey, G.
Grenier, I. A.
Grove, J. E.
Guillemot, L.
Guiriec, S.
Hanabata, Y.
Harding, A. K.
Hayashida, M.
Hays, E.
Horan, D.
Hughes, R. E.
Iafrate, G.
Itoh, R.
Jackson, M. S.
Johannesson, G.
Johnson, A. S.
Johnson, W. N.
Kadler, M.
Kamae, T.
Katagiri, H.
Kataoka, J.
Kawai, N.
Kerr, M.
Knoedlseder, J.
Kocian, M. L.
Kuss, M.
Lande, J.
Larsson, S.
Latronico, L.
Lemoine-Goumard, M.
Longo, F.
Loparco, F.
Lott, B.
Lovellette, M. N.
Lubrano, P.
Macquart, J.
Madejski, G. M.
Makeev, A.
Max-Moerbeck, W.
Mazziotta, M. N.
McConville, W.
McEnery, J. E.
McGlynn, S.
Meurer, C.
Michelson, F.
Mitthumsiri, W.
Mizuno, T.
Moiseev, A. A.
Monte, C.
Monzani, M. E.
Morselli, A.
Moskalenko, I. V.
Murgia, S.
Nestoras, I.
Nolan, P. L.
Norris, J. P.
Nuss, E.
Ohsugi, T.
Okumura, A.
Omodei, N.
Orlando, E.
Ormes, J. F.
Paneque, D.
Panetta, J. H.
Parent, D.
Pavlidou, V.
Pearson, T. J.
Pelassa, V.
Pepe, M.
Pesce-Rollins, M.
Piron, F.
Porter, T. A.
Raino, S.
Rando, R.
Razzano, M.
Readhead, A.
Reimer, A.
Reimer, O.
Reposeur, T.
Reyes, L. C.
Richards, J. L.
Rochester, L. S.
Rodriguez, A. Y.
Roth, M.
Ryde, F.
Sadrozinski, H. F. -W.
Sanchez, D.
Sander, A.
Parkinson, P. M. Saz
Scargle, J. D.
Sgro, C.
Shaw, M. S.
Shrader, C.
Siskind, E. J.
Smith, D. A.
Smith, P. D.
Spandre, G.
Spinelli, P.
Stawarz, L.
Stevenson, M.
Strickman, M. S.
Suson, D. J.
Tajima, H.
Takahashi, H.
Takahashi, T.
Tanaka, T.
Taylor, G. B.
Thayer, J. B.
Thayer, J. G.
Thompson, D. J.
Tibaldo, L.
Torres, D. F.
Tosti, G.
Tramacere, A.
Uchiyama, Y.
Usher, T. L.
Vasileiou, V.
Vilchez, N.
Vitale, V.
Waite, A. P.
Wang, P.
Wehrle, A. E.
Winer, B. L.
Wood, K. S.
Ylinen, T.
Zensus, J. A.
Ziegler, M.
Uemura, M.
Ikejiri, Y.
Kawabata, K. S.
Kino, M.
Sakimoto, K.
Sasada, M.
Sato, S.
Yamanaka, M.
Villata, M.
Raiteri, C. M.
Agudo, I.
Aller, H. D.
Aller, M. F.
Angelakis, E.
Arkharov, A. A.
Bach, U.
Benitez, E.
Berdyugin, A.
Blinov, D. A.
Boettcher, M.
Buemi, C. S.
Chen, W. P.
Dolci, M.
Dultzin, D.
Efimova, N. V.
Gurwell, M. A.
Gusbar, C.
Gomez, J. L.
Heidt, J.
Hiriart, D.
Hovatta, T.
Jorstad, S. G.
Konstantinova, T. S.
Kopatskaya, E. N.
Koptelova, E.
Kurtanidze, O. M.
Lahteenmaki, A.
Larionov, V. M.
Larionova, E. G.
Leto, P.
Lin, H. C.
Lindfors, E.
Marscher, A. P.
McHardy, I. M.
Melnichuk, D. A.
Mommert, M.
Nilsson, K.
Di Paola, A.
Reinthal, R.
Richter, G. M.
Roca-Sogorb, M.
Roustazadeh, P.
Sigua, L. A.
Takalo, L. O.
Tornikoski, M.
Trigilio, C.
Troitsky, I. S.
Umana, G.
Villforth, C.
Grainge, K.
Moderski, R.
Nalewajko, K.
Sikora, M.
CA Fermi LAT Collaboration
3C 279 Multiband Campaign
TI A change in the optical polarization associated with a gamma-ray flare
in the blazar 3C 279
SO NATURE
LA English
DT Article
ID ACTIVE GALACTIC NUCLEUS; RELATIVISTIC JET; RADIO-SOURCES; VARIABILITY;
EMISSION; TELESCOPE; RADIATION; QUASAR; ULTRAVIOLET; 3C-279
AB It is widely accepted that strong and variable radiation detected over all accessible energy bands in a number of active galaxies arises from a relativistic, Doppler-boosted jet pointing close to our line of sight(1). The size of the emitting zone and the location of this region relative to the central supermassive black hole are, however, poorly known, with estimates ranging from light-hours to a light-year or more. Here we report the coincidence of a gamma (gamma)-ray flare with a dramatic change of optical polarization angle. This provides evidence for co-spatiality of optical and gamma-ray emission regions and indicates a highly ordered jet magnetic field. The results also require a non-axisymmetric structure of the emission zone, implying a curved trajectory for the emitting material within the jet, with the dissipation region located at a considerable distance from the black hole, at about 10(5) gravitational radii.
C1 [Ackermann, M.; Ajello, M.; Bechtol, K.; Berenji, B.; Blandford, R. D.; Bloom, E. D.; Bogart, J. R.; Borgland, A. W.; Bouvier, A.; Cameron, R. A.; Chiang, J.; Claus, R.; Costamante, L.; Digel, S. W.; do Couto e Silva, E.; Drell, P. S.; Dubois, R.; Focke, W. B.; Funk, S.; Glanzman, T.; Godfrey, G.; Hayashida, M.; Johannesson, G.; Johnson, A. S.; Kamae, T.; Kocian, M. L.; Lande, J.; Madejski, G. M.; Michelson, F.; Mitthumsiri, W.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Nolan, P. L.; Paneque, D.; Panetta, J. H.; Reimer, A.; Reimer, O.; Rochester, L. S.; Shaw, M. S.; Stawarz, L.; Tajima, H.; Tanaka, T.; Thayer, J. B.; Thayer, J. G.; Tramacere, A.; Uchiyama, Y.; Usher, T. L.; Waite, A. P.; Wang, P.] Stanford Univ, Dept Phys, WW Hansen Expt Phys Lab, Kavli Inst Particle Astrophys & Cosmol, Stanford, CA 94305 USA.
[Abdo, A. A.; Chekhtman, A.; Cheung, C. C.; Dermer, C. D.; Grove, J. E.; Johnson, W. N.; Lovellette, M. N.; Makeev, A.; Parent, D.; Strickman, M. S.; Wood, K. S.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Abdo, A. A.; Cheung, C. C.] Natl Acad Sci, Natl Res Council Res Associate, Washington, DC 20001 USA.
[Ackermann, M.; Ajello, M.; Bechtol, K.; Berenji, B.; Blandford, R. D.; Bloom, E. D.; Bogart, J. R.; Borgland, A. W.; Bouvier, A.; Cameron, R. A.; Chiang, J.; Claus, R.; Costamante, L.; Digel, S. W.; do Couto e Silva, E.; Drell, P. S.; Dubois, R.; Focke, W. B.; Funk, S.; Glanzman, T.; Godfrey, G.; Hayashida, M.; Johannesson, G.; Johnson, A. S.; Kamae, T.; Kocian, M. L.; Lande, J.; Madejski, G. M.; Michelson, F.; Mitthumsiri, W.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Nolan, P. L.; Paneque, D.; Panetta, J. H.; Reimer, A.; Reimer, O.; Rochester, L. S.; Shaw, M. S.; Stawarz, L.; Tajima, H.; Tanaka, T.; Thayer, J. B.; Thayer, J. G.; Tramacere, A.; Uchiyama, Y.; Usher, T. L.; Waite, A. P.; Wang, P.] Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA.
[Axelsson, M.] Stockholm Univ, Dept Astron, SE-10691 Stockholm, Sweden.
[Axelsson, M.; Conrad, J.; Jackson, M. S.; Larsson, S.; McGlynn, S.; Meurer, C.; Ryde, F.; Ylinen, T.] AlbaNova, Oskar Klein Ctr Cosmoparticle Phys, SE-10691 Stockholm, Sweden.
[Baldini, L.; Bellazzini, R.; Bregeon, J.; Brez, A.; Kuss, M.; Latronico, L.; Omodei, N.; Pesce-Rollins, M.; Razzano, M.; Sgro, C.; Spandre, G.] Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy.
[Ballet, J.; Casandjian, J. M.; Corbel, S.; Grenier, I. A.; Tibaldo, L.] Univ Paris Diderot, CEA Saclay, CNRS, IRFU,Lab AIM,Serv Astrophys, F-91191 Gif Sur Yvette, France.
[Barbiellini, G.; Iafrate, G.; Longo, F.] Ist Nazl Fis Nucl, Sez Trieste, I-34127 Trieste, Italy.
[Barbiellini, G.; Longo, F.] Univ Trieste, Dipartmento Fis, I-34127 Trieste, Italy.
[Bastieri, D.; Buson, S.; Rando, R.; Tibaldo, L.] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy.
[Bastieri, D.; Rando, R.; Tibaldo, L.] Univ Padua, Dipartimento Fis Galileo Galilei, I-35131 Padua, Italy.
[Baughman, B. M.; Hughes, R. E.; Sander, A.; Smith, P. D.; Winer, B. L.] Ohio State Univ, Dept Phys, Ctr Cosmol & Astroparticle Phys, Columbus, OH 43210 USA.
[Bock, D. C. -J.] CARMA, Big Pine, CA 93514 USA.
[Bock, D. C. -J.] Univ Calif Berkeley, Radio Astron Lab, Berkeley, CA 94720 USA.
[Bonamente, E.; Cecchi, C.; Germani, S.; Lubrano, P.; Pepe, M.; Tosti, G.] Ist Nazl Fis Nucl, Sez Perugia, I-06123 Perugia, Italy.
[Bonamente, E.; Cecchi, C.; Ciprini, S.; Germani, S.; Lubrano, P.; Pepe, M.; Tosti, G.] Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Giglietto, N.; Giordano, F.; Loparco, F.; Monte, C.; Raino, S.; Spinelli, P.] Univ Politecn Bari, Dipartimento Fis M Merlin, I-70126 Bari, Italy.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Gargano, F.; Giglietto, N.; Giordano, F.; Loparco, F.; Mazziotta, M. N.; Monte, C.; Raino, S.; Spinelli, P.] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy.
[Bruel, P.; Fegan, S. J.; Fortin, P.; Giebels, B.; Horan, D.; Sanchez, D.] Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France.
[Burnett, T. H.; Kerr, M.; Roth, M.] Univ Washington, Dept Phys, Seattle, WA 98195 USA.
[Caliandro, G. A.; Rodriguez, A. Y.; Torres, D. F.] CSIC, IEEC, Inst Ciencies Espai, Barcelona 08193, Spain.
[Caraveo, P. A.] Ist Astrofis Spaziale & Fis Cosm, INAF, I-20133 Milan, Italy.
[Cavazzuti, E.; Cutini, S.; Gasparrini, D.; Giommi, P.] Sci Data Ctr, ASI, I-00044 Frascati, Roma, Italy.
[Celik, Oe; Corbet, R.; Ferrara, E. C.; Gehrels, N.; Harding, A. K.; Hays, E.; Kadler, M.; McConville, W.; McEnery, J. E.; Moiseev, A. A.; Shrader, C.; Thompson, D. J.; Vasileiou, V.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Celik, Oe; Kadler, M.; Moiseev, A. A.; Shrader, C.; Vasileiou, V.] NASA, CRESST, Greenbelt, MD 20771 USA.
[Celik, Oe; Corbet, R.; Vasileiou, V.] Univ Maryland Baltimore Cty, Dept Phys, Baltimore, MD 21250 USA.
[Celik, Oe; Corbet, R.; Vasileiou, V.] Univ Maryland Baltimore Cty, Ctr Space Sci & Technol, Baltimore, MD 21250 USA.
[Chekhtman, A.; Makeev, A.; Parent, D.] George Mason Univ, Fairfax, VA 22030 USA.
[Cohen-Tanugi, J.; Farnier, C.; Nuss, E.; Pelassa, V.; Piron, F.] Univ Montpellier 2, CNRS, IN2P3, Lab Phys Theor & Astroparticules, F-34095 Montpellier, France.
[Collmar, W.; Orlando, E.] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany.
[Cominsky, L. R.] Sonoma State Univ, Dept Phys & Astron, Rohnert Pk, CA 94928 USA.
[Conrad, J.; Larsson, S.; Meurer, C.] Stockholm Univ, Dept Phys, SE-10691 Stockholm, Sweden.
[Corbel, S.] Inst Univ France, F-75005 Paris, France.
[de Angelis, A.; Frailis, M.] Univ Udine, Dipartimento Fis, I-33100 Udine, Italy.
[de Angelis, A.; Frailis, M.] Grp Coll Udine, Ist Nazl Fis Nucl, Sez Trieste, I-33100 Udine, Italy.
[Dumora, D.; Guillemot, L.; Lemoine-Goumard, M.; Lott, B.; Parent, D.; Reposeur, T.; Smith, D. A.] CEN Bordeaux Gradignan, CNRS, UMR 5797, IN2P3, F-33175 Gradignan, France.
[Dumora, D.; Guillemot, L.; Lemoine-Goumard, M.; Lott, B.; Parent, D.; Reposeur, T.; Smith, D. A.] Univ Bordeaux, CEN Bordeaux Gradignan, UMR 5797, F-33175 Gradignan, France.
[Frailis, M.; Iafrate, G.] Osserv Astron Trieste, Ist Nazl Astrofis, I-34143 Trieste, Italy.
[Fuhrmann, L.; Guillemot, L.; Nestoras, I.; Zensus, J. A.; Angelakis, E.; Bach, U.] Max Planck Inst Radioastron, D-53121 Bonn, Germany.
[Fukazawa, Y.; Hanabata, Y.; Itoh, R.; Katagiri, H.; Mizuno, T.; Ohsugi, T.; Takahashi, H.; Ikejiri, Y.; Sakimoto, K.; Sasada, M.; Yamanaka, M.] Hiroshima Univ, Dept Phys Sci, Hiroshima 7398526, Japan.
[Gehrels, N.] Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA.
[Gehrels, N.; McConville, W.; McEnery, J. E.; Moiseev, A. A.] Univ Maryland, Dept Phys, College Pk, MD 20742 USA.
[Gehrels, N.; McConville, W.; McEnery, J. E.; Moiseev, A. A.] Univ Maryland, Dept Astron, College Pk, MD 20742 USA.
[Giroletti, M.] INAF Ist Radioastron, I-40129 Bologna, Italy.
[Guiriec, S.] Univ Alabama, Ctr Space Plasma & Aeron Res, Huntsville, AL 35899 USA.
[Jackson, M. S.; McGlynn, S.; Ryde, F.; Ylinen, T.] Royal Inst Technol KTH, Dept Phys, SE-10691 Stockholm, Sweden.
[Kadler, M.] Dr Remeis Sternwarte Bamberg, D-96049 Bamberg, Germany.
[Kadler, M.] Erlangen Ctr Astroparticle Phys, D-91058 Erlangen, Germany.
[Kadler, M.] Univ Space Res Assoc, Columbia, MD 21044 USA.
[Kataoka, J.] Waseda Univ, Res Inst Sci & Engn, Shinjuku Ku, Tokyo 1698555, Japan.
[Kawai, N.] Tokyo Inst Technol, Dept Phys, Meguro, Tokyo 1528551, Japan.
[Kawai, N.] RIKEN, Inst Phys & Chem Res, Cosm Radiat Lab, Wako, Saitama 3510198, Japan.
[Knoedlseder, J.; Vilchez, N.] UPS, CNRS, Ctr Etud Spatiale Rayonnements, F-31028 Toulouse 4, France.
[Macquart, J.] Curtin Inst Radio Astron, ICRAR, Bentley, WA 6102, Australia.
[Max-Moerbeck, W.; Pavlidou, V.; Pearson, T. J.; Readhead, A.; Richards, J. L.; Stevenson, M.] CALTECH, Cahill Ctr Astron & Astrophys, Pasadena, CA 91125 USA.
[Morselli, A.; Vitale, V.] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, I-00133 Rome, Italy.
[Norris, J. P.; Ormes, J. F.] Univ Denver, Dept Phys & Astron, Denver, CO 80208 USA.
[Okumura, A.] Univ Tokyo, Grad Sch Sci, Dept Phys, Bunkyo Ku, Tokyo 1130033, Japan.
[Porter, T. A.; Sadrozinski, H. F. -W.; Parkinson, P. M. Saz; Ziegler, M.] Univ Calif Santa Cruz, Dept Phys, Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA.
[Porter, T. A.; Sadrozinski, H. F. -W.; Parkinson, P. M. Saz; Ziegler, M.] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA.
[Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria.
[Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria.
[Reyes, L. C.] Univ Chicago, Kavli Inst Cosmol Phys, Chicago, IL 60637 USA.
[Scargle, J. D.] NASA, Ames Res Ctr, Div Space Sci, Moffett Field, CA 94035 USA.
[Siskind, E. J.] NYCB Real Time Comp Inc, Lattingtown, NY 11560 USA.
[Stawarz, L.] Jagiellonian Univ, Astron Observ, PL-30244 Krakow, Poland.
[Suson, D. J.] Purdue Univ Calumet, Dept Chem & Phys, Hammond, IN 46323 USA.
[Takahashi, T.] JAXA, Inst Space & Astronaut Sci, Sagamihara, Kanagawa 2298510, Japan.
[Taylor, G. B.] Univ New Mexico, Albuquerque, NM 87131 USA.
[Torres, D. F.] ICREA, Barcelona 08010, Spain.
[Tramacere, A.] CIFS, I-10133 Turin, Italy.
[Vitale, V.] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy.
[Wehrle, A. E.] Space Sci Inst, Boulder, CO 80301 USA.
[Ylinen, T.] Univ Kalmar, Sch Pure & Appl Nat Sci, SE-39182 Kalmar, Sweden.
[Uemura, M.; Kawabata, K. S.] Hiroshima Univ, Hiroshima Astrophys Sci Ctr, Hiroshima 7398526, Japan.
[Kino, M.; Sato, S.] Nagoya Univ, Dept Phys & Astrophys, Nagoya, Aichi 4648602, Japan.
[Villata, M.; Raiteri, C. M.] Osserv Astron Torino, INAF, I-10025 Pino Torinese, TO, Italy.
[Agudo, I.; Gomez, J. L.; Roca-Sogorb, M.] CSIC, Inst Astrofis Andalucia, E-18080 Granada, Spain.
[Aller, H. D.; Aller, M. F.] Univ Michigan, Dept Astron, Ann Arbor, MI 48109 USA.
[Arkharov, A. A.; Efimova, N. V.] Pulkovo Observ, St Petersburg 196140, Russia.
[Benitez, E.; Dultzin, D.] Univ Nacl Autonoma Mexico, Inst Astron, Mexico City 04510, DF, Mexico.
[Berdyugin, A.; Blinov, D. A.; Lindfors, E.; Nilsson, K.; Reinthal, R.; Takalo, L. O.; Villforth, C.] Univ Turku, Tuorla Observ, FI-21500 Piikkio, Finland.
[Blinov, D. A.; Efimova, N. V.; Konstantinova, T. S.; Kopatskaya, E. N.; Larionov, V. M.; Larionova, E. G.; Melnichuk, D. A.; Troitsky, I. S.] St Petersburg State Univ, Astron Inst, St Petersburg, Russia.
[Boettcher, M.; Gusbar, C.; Roustazadeh, P.] Ohio Univ, Dept Phys & Astron, Athens, OH 45701 USA.
[Buemi, C. S.; Leto, P.; Trigilio, C.; Umana, G.] Osserv Astrofis Catania, I-95123 Catania, Italy.
[Chen, W. P.; Koptelova, E.; Lin, H. C.] Natl Cent Univ, Grad Inst Astron, Jhongli 32054, Taiwan.
[Dolci, M.] Osservatorio Astron Collurania, INAF, I-64100 Teramo, Italy.
[Gurwell, M. A.] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA.
[Heidt, J.; Mommert, M.] Heidelberg Univ, D-69117 Heidelberg, Germany.
[Hiriart, D.] Univ Nacl Autonoma Mexico, Inst Astron, Ensenada 22860, Baja California, Mexico.
[Hovatta, T.; Lahteenmaki, A.; Tornikoski, M.] Aalto Univ, Metsahovi Radio Observ, FIN-02540 Kylmala, Finland.
[Jorstad, S. G.; Marscher, A. P.] Boston Univ, Inst Astrophys Res, Boston, MA 02215 USA.
[Kurtanidze, O. M.; Sigua, L. A.] Abastumani Observ, GE-0301 Mt Kanobili, Abastumani, Rep of Georgia.
[McHardy, I. M.] Univ Southampton, Sch Phys & Astron, Southampton SO17 BJ, Hants, England.
[Di Paola, A.] Osserv Astron Roma, I-00040 Monte Porzio Catone, Italy.
[Richter, G. M.] Astrophys Inst Potsdam, D-14482 Potsdam, Germany.
[Grainge, K.] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England.
[Moderski, R.; Nalewajko, K.; Sikora, M.] Nicolaus Copernicus Astron Ctr, PL-00716 Warsaw, Poland.
RP Hayashida, M (reprint author), Stanford Univ, Dept Phys, WW Hansen Expt Phys Lab, Kavli Inst Particle Astrophys & Cosmol, Stanford, CA 94305 USA.
EM hayasida@stanford.edu; madejski@slac.stanford.edu
RI Larionova, Elena/H-7287-2013; Efimova, Natalia/I-2196-2013; Saz
Parkinson, Pablo Miguel/I-7980-2013; Blinov, Dmitry/G-9925-2013; Rando,
Riccardo/M-7179-2013; Lahteenmaki, Anne/L-5987-2013; Hays,
Elizabeth/D-3257-2012; Johnson, Neil/G-3309-2014; Reimer,
Olaf/A-3117-2013; Kurtanidze, Omar/J-6237-2014; Funk,
Stefan/B-7629-2015; Pavlidou, Vasiliki/C-2944-2011; Agudo,
Ivan/G-1701-2015; Larionov, Valeri/H-1349-2013; Kopatskaya,
Evgenia/H-4720-2013; Thompson, David/D-2939-2012; Harding,
Alice/D-3160-2012; Gehrels, Neil/D-2971-2012; McEnery,
Julie/D-6612-2012; Baldini, Luca/E-5396-2012; lubrano,
pasquale/F-7269-2012; Morselli, Aldo/G-6769-2011; Nolan,
Patrick/A-5582-2009; Kuss, Michael/H-8959-2012; giglietto,
nicola/I-8951-2012; Macquart, Jean-Pierre/B-5306-2013; Tosti,
Gino/E-9976-2013; Pearson, Timothy/N-2376-2015; Morozova,
Daria/H-1298-2013; Troitskiy, Ivan/K-7979-2013; Jorstad,
Svetlana/H-6913-2013; Grishina, Tatiana/H-6873-2013; Loparco,
Francesco/O-8847-2015; Johannesson, Gudlaugur/O-8741-2015; Gargano,
Fabio/O-8934-2015; Moskalenko, Igor/A-1301-2007; Mazziotta, Mario
/O-8867-2015; Sgro, Carmelo/K-3395-2016; Torres, Diego/O-9422-2016;
OI Larionova, Elena/0000-0002-2471-6500; Efimova,
Natalia/0000-0002-8071-4753; Blinov, Dmitry/0000-0003-0611-5784; Reimer,
Olaf/0000-0001-6953-1385; Funk, Stefan/0000-0002-2012-0080; Pavlidou,
Vasiliki/0000-0002-0870-1368; Agudo, Ivan/0000-0002-3777-6182; Larionov,
Valeri/0000-0002-4640-4356; Kopatskaya, Evgenia/0000-0001-9518-337X;
Thompson, David/0000-0001-5217-9135; lubrano,
pasquale/0000-0003-0221-4806; Morselli, Aldo/0000-0002-7704-9553;
giglietto, nicola/0000-0002-9021-2888; Villata,
Massimo/0000-0003-1743-6946; Caraveo, Patrizia/0000-0003-2478-8018;
Leto, Paolo/0000-0003-4864-2806; Sgro', Carmelo/0000-0001-5676-6214;
Buemi, Carla Simona/0000-0002-7288-4613; giommi,
paolo/0000-0002-2265-5003; Di Paola, Andrea/0000-0002-2189-8644; De
Angelis, Alessandro/0000-0002-3288-2517; Iafrate,
Giulia/0000-0002-6185-8292; Frailis, Marco/0000-0002-7400-2135; Pearson,
Timothy/0000-0001-5213-6231; Morozova, Daria/0000-0002-9407-7804;
Troitskiy, Ivan/0000-0002-4218-0148; Jorstad,
Svetlana/0000-0001-9522-5453; Grishina, Tatiana/0000-0002-3953-6676;
Loparco, Francesco/0000-0002-1173-5673; Johannesson,
Gudlaugur/0000-0003-1458-7036; Gargano, Fabio/0000-0002-5055-6395;
Moskalenko, Igor/0000-0001-6141-458X; Mazziotta, Mario
/0000-0001-9325-4672; Torres, Diego/0000-0002-1522-9065; Dolci,
Mauro/0000-0001-8000-5642
FU Georgian National Science Foundation; Spanish "Ministerio de Ciencia e
Innovacion''; NSF; NASA; Smithsonian Institution in the United States;
UK Science and Technology Facilities Council; Academia Sinica in Taiwan;
Russian RFBR; Academy of Finland; JSPS; K. A. Wallenberg Foundation
FX The Fermi-LAT Collaboration acknowledges support from a number of
agencies and institutes for both development and the operation of the
LAT as well as scientific data analysis. These include NASA and DOE in
the United States, CEA/Irfu and IN2P3/CNRS in France, ASI and INFN in
Italy, MEXT, KEK and JAXA in Japan, and the K. A. Wallenberg Foundation,
the Swedish Research Council and the National Space Board in Sweden.
Additional support from INAF in Italy for science analysis during the
operations phase is also gratefully acknowledged. The GASP-WEBT
observatories participating in this work are Abastumani, Calar Alto,
Campo Imperatore, Crimean, Kitt Peak (MDM), L'Ampolla, Lowell
(Perkins-PRISM), Lulin, Roque de los Muchachos (KVA and Liverpool), San
Pedro Martir, St Petersburg for the optical-NIR bands, and Mauna Kea
(SMA), Medicina, Metsahovi, Noto and UMRAO for the millimetre radio
band, and are supported in part by the Georgian National Science
Foundation, the Spanish "Ministerio de Ciencia e Innovacion'', the NSF
and NASA and the Smithsonian Institution in the United States, the UK
Science and Technology Facilities Council, the Academia Sinica in
Taiwan, the Russian RFBR and the Academy of Finland. M. H. is supported
by the JSPS for the Postdoctoral Fellowship for Research Abroad. J.
Conrad is a Royal Swedish Academy of Sciences Research Fellow, funded by
a grant from the K. A. Wallenberg Foundation. L. T. is partially
supported by the International Doctorate on Astroparticle Physics
(IDAPP) programme.
NR 25
TC 164
Z9 165
U1 1
U2 22
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 FEB 18
PY 2010
VL 463
IS 7283
BP 919
EP 923
DI 10.1038/nature08841
PG 5
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 556HZ
UT WOS:000274582700039
ER
PT J
AU Nasir, M
Ateya, DA
Burk, D
Golden, JP
Ligler, FS
AF Nasir, Mansoor
Ateya, Daniel A.
Burk, Diana
Golden, Joel P.
Ligler, Frances S.
TI Hydrodynamic focusing of conducting fluids for conductivity-based
biosensors
SO BIOSENSORS & BIOELECTRONICS
LA English
DT Article
DE Conductivity; Flow-focusing; Biosensor; Reynolds number; Magnetic beads;
Hydrodynamic focusing
ID MICROFLUIDIC DEVICES; MICROCHANNELS; DELIVERY; FLOW; SEPARATION;
IMPEDANCE; SURFACES; SENSOR; CHIP
AB Hydrodynamic focusing of a conducting fluid by a non-conducting fluid to form a constricted current path between two sensing electrodes is implemented in order to enhance the sensitivity of a 4-electrode conductance-based biosensor. The sensor has a simple two-inlet T-junction design and performs four-point conductivity measurements to detect particles immobilized between the sensing electrode pair. Computational simulations conducted in conjunction with experimental flow studies using confocal microscopy show that a flat profile for the focused layer is dependent on the Reynolds number for the chosen flow parameters. The results also indicate that a flat focused layer is desirable for both increased sensitivity as well as surface-binding efficiency. Proof of concept for conductance measurements in a hydrodynamically focused conducting fluid was demonstrated with entrapped magnetic beads. Published by Elsevier B.V.
C1 [Nasir, Mansoor; Ateya, Daniel A.; Burk, Diana; Golden, Joel P.; Ligler, Frances S.] USN, Res Lab, Ctr Biomol Sci & Engn, Washington, DC 20375 USA.
RP Ligler, FS (reprint author), USN, Res Lab, Ctr Biomol Sci & Engn, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM frances.ligler@nrl.navy.mil
FU Defense Threat Reduction Agency (DTRA) [AA07CBT015]
FX This project is funded by the Defense Threat Reduction Agency (DTRA
#AA07CBT015). The authors would like to thank Dr. David Mott at NRL for
his discussions on fluid dynamics. Daniel Ateya and Mansoor Nasir are
National Research Council (NRC) Postdoctoral Fellows. Diana Burk was an
undergraduate summer intern with the Navy 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 26
TC 10
Z9 10
U1 2
U2 12
PU ELSEVIER ADVANCED TECHNOLOGY
PI OXFORD
PA OXFORD FULFILLMENT CENTRE THE BOULEVARD, LANGFORD LANE, KIDLINGTON,
OXFORD OX5 1GB, OXON, ENGLAND
SN 0956-5663
J9 BIOSENS BIOELECTRON
JI Biosens. Bioelectron.
PD FEB 15
PY 2010
VL 25
IS 6
BP 1363
EP 1369
DI 10.1016/j.bios.2009.10.033
PG 7
WC Biophysics; Biotechnology & Applied Microbiology; Chemistry, Analytical;
Electrochemistry; Nanoscience & Nanotechnology
SC Biophysics; Biotechnology & Applied Microbiology; Chemistry;
Electrochemistry; Science & Technology - Other Topics
GA 559YO
UT WOS:000274868800018
PM 19932019
ER
PT J
AU Guenthner, AJ
Hess, DM
Cash, JJ
AF Guenthner, Andrew J.
Hess, David M.
Cash, Jessica J.
TI Dimensional Stability of Sparse Network Microstructures Formed by
Photopolymerization-Induced Phase Separation
SO JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS
LA English
DT Article
DE microstructure; morphology; phase separation; thiol-ene
ID DISPERSED LIQUID-CRYSTAL; LATEX FILM FORMATION; IMMISCIBLE POLYMER
BLENDS; LOW-REYNOLDS-NUMBER; MORPHOLOGY DEVELOPMENT; POLYSULFONE
MEMBRANES; INTERFACIAL-TENSION; TERNARY-SYSTEM; WATER; SCAFFOLDS
AB The morphology of sparse filament networks formed during photo polymerization-induced phase separation of mixtures of NOA81 (a UV-curable thiol-ene adhesive) in mixed cosolvents consisting of water, diglyme, and polyethers of varying molecular weight was investigated as a function of the molecular weight and relative amount of the polyethers used. During photo polymerization (50 mW/cm(-2) of 365 nm radiation for 60 s) of solutions containing 5 wt % NOA81 and a total oligo-ether or polyether to water ratio of 8:1 by weight, viscoelastic phase separation produced a sparse network of interconnected NOA81 filaments. During the subsequent evaporation and/or solidification of the solvents, the network compacted significantly via a collapse process that was curtailed by increasing both the weight fraction and molecular weight of the nonvolatile polyether. The influence of mass and momentum transport processes on the collapse of the phase-separated network and the resultant final morphology was determined with the aid of dimensional analysis, leading to the identification of sedimentation and compaction driven by the motion of the interface as key factors. The networks exhibiting the least collapse combine a high level of interconnectivity and specific surface area with a low occupied volume fraction while being fabricated via a simple, template-free process. (C) 2010 Wiley Periodicals, Inc.* J Polym Sci Part B: Polym Phys 48: 396-410, 2010
C1 [Guenthner, Andrew J.; Hess, David M.; Cash, Jessica J.] USN, Air Warfare Ctr, Weap Div, China Lake, CA 93555 USA.
RP Guenthner, AJ (reprint author), USN, Air Warfare Ctr, Weap Div, China Lake, CA 93555 USA.
EM andrew.guenthner@navy.mil
FU Office of Naval Research; American Society of Engineering Education
FX The support of the Office of Naval Research is gratefully acknowledged.
D. M. Hess thanks the American Society of Engineering Education for
support through the Navy Research Laboratory Post-Doctoral Fellowship
Program. The efforts of Danielle Ramos and Dan Connor in producing the
SEM images and corresponding element maps are also greatly appreciated.
NR 51
TC 0
Z9 0
U1 3
U2 16
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 FEB 15
PY 2010
VL 48
IS 4
BP 396
EP 410
DI 10.1002/polb.21868
PG 15
WC Polymer Science
SC Polymer Science
GA 558NR
UT WOS:000274751200002
ER
PT J
AU Goswami, R
Spanos, G
Pao, PS
Holtz, RL
AF Goswami, R.
Spanos, G.
Pao, P. S.
Holtz, R. L.
TI Precipitation behavior of the beta phase in Al-5083
SO MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES
MICROSTRUCTURE AND PROCESSING
LA English
DT Article
DE Al-5083; Microstructure; TEM; SCC; Grain boundary
ID SENSITIZED AA5083 AL-4.5MG-1.0MN; STRESS-CORROSION CRACKING; AL-MG ALLOY
AB The formation and growth of the magnesium-rich beta phase, Al(3)Mg(2), in Al-5083 has been studied by transmission electron microscopy (TEM). The beta phase forms heterogeneously both at grain boundaries, and on preexisting particles which are enriched in manganese. The beta precipitates at grain boundaries, containing a high density of very fine faults, thicken faster than the rate estimated assuming volume diffusion controlled growth of planar interfaces. It is suggested that pipe diffusion through dislocations contributes to the enhanced growth rate. (C) 2009 Elsevier B.V. All rights reserved.
C1 [Goswami, R.; Spanos, G.; Pao, P. S.; Holtz, R. L.] USN, Res Lab, Washington, DC 20375 USA.
[Goswami, R.] Sci Applicat Int Corp, Mclean, VA 22102 USA.
RP Goswami, R (reprint author), USN, Res Lab, Washington, DC 20375 USA.
EM goswami@anvil.nrl.navy.mil
FU Office of Naval Research (ONR)
FX The authors gratefully acknowledge the Office of Naval Research (ONR)
for funding this research, and F.S. Bovard of ALCOA, for providing the
material used in this study.
NR 21
TC 68
Z9 71
U1 3
U2 30
PU ELSEVIER SCIENCE SA
PI LAUSANNE
PA PO BOX 564, 1001 LAUSANNE, SWITZERLAND
SN 0921-5093
J9 MAT SCI ENG A-STRUCT
JI Mater. Sci. Eng. A-Struct. Mater. Prop. Microstruct. Process.
PD FEB 15
PY 2010
VL 527
IS 4-5
BP 1089
EP 1095
DI 10.1016/j.msea.2009.10.007
PG 7
WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary;
Metallurgy & Metallurgical Engineering
SC Science & Technology - Other Topics; Materials Science; Metallurgy &
Metallurgical Engineering
GA 548RM
UT WOS:000273983900033
ER
PT J
AU Krowne, CM
AF Krowne, C. M.
TI Nanowire and nanocable junction capacitances: Results for metal and
semiconducting oxides
SO PHYSICS LETTERS A
LA English
DT Article
ID CARBON NANOTUBES; ATOMIC-STRUCTURE; THIN-FILMS; GRAPHENE; DEVICES; RUO2;
DIOXIDE; SILICON; PHYSICS; SIO2
AB Formulas are derived for Schottky junction and p-n junction capacitances of nanowires and nanocables (which includes the hollow case of nanotubes). Evaluation of these expressions for the very unusual metal oxide, metallic conductor RuO2, demonstrates that capacitance values occur in the aF range. Furthermore, for recently fabricated conductor RuO2/SiO2 nanocables as reported in the literature, we show that the junction capacitances are significantly lower than the intrinsic quantum capacitance. These formulas are of great interest for device applications, and the capacitance findings could also have huge implications for charge storage and energy conversion applications. Published by Elsevier B.V.
C1 USN, Res Lab, Microwave Technol Branch, Washington, DC 20375 USA.
RP Krowne, CM (reprint author), USN, Res Lab, Microwave Technol Branch, Washington, DC 20375 USA.
EM cliff.krowne@nrl.navy.mil
NR 48
TC 4
Z9 4
U1 2
U2 10
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0375-9601
EI 1873-2429
J9 PHYS LETT A
JI Phys. Lett. A
PD FEB 15
PY 2010
VL 374
IS 9
BP 1172
EP 1179
DI 10.1016/j.physleta.2009.12.056
PG 8
WC Physics, Multidisciplinary
SC Physics
GA 596XK
UT WOS:000277718800015
ER
PT J
AU Sirevaag, A
McPhee, MG
Morison, JH
Shaw, WJ
Stanton, TP
AF Sirevaag, Anders
McPhee, Miles G.
Morison, James H.
Shaw, William J.
Stanton, Timothy P.
TI Wintertime mixed layer measurements at Maud Rise, Weddell Sea
SO JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
LA English
DT Article
ID OCEAN DEEP CONVECTION; BOUNDARY-LAYER; HEAT-FLUX; PACK ICE;
THERMAL-CONDUCTIVITY; TURBULENT STRESS; TEMPERATURE; DISSIPATION; DRIFT
AB Sea ice plays a crucial role in the exchange of heat between the ocean and the atmosphere, and areas of intense air-sea-ice interaction are important sites for water mass modification. The Weddell Sea is one of these sites where a relatively thin first-year ice cover is constantly being changed by mixing of heat from below and stress exerted from the rapidly changing and intense winds. This study presents mixed layer turbulence measurements obtained during two wintertime drift stations in August 2005 in the eastern Weddell Sea, close to the Maud Rise seamount. Turbulence in the boundary layer is found to be controlled by the drifting ice. Directly measured heat fluxes compare well with previous studies and are well estimated from the mixed layer temperatures and mixing. Heat fluxes are also found to roughly balance the conductive heat flux in the ice; hence, little freezing/melting was observed. The under-ice topography is estimated to be hydraulically very smooth; comparison with a steady 1-D model shows that these estimates are made too close to the ice-ocean interface to be representative for the entire ice floe. The main source and sink of turbulent kinetic energy are shear production and dissipation. Observations indicate that the dynamics of the under-ice boundary layer are influenced by a horizontal variability in mixed layer density and an increasing amount of open leads in the area.
C1 [Sirevaag, Anders] Univ Bergen, Inst Geophys, N-5007 Bergen, Norway.
[Sirevaag, Anders] Bjerknes Ctr Climate Res, Bergen, Norway.
[McPhee, Miles G.] McPhee Res Co, Naches, WA 98937 USA.
[Morison, James H.] Univ Washington, Appl Phys Lab, Polar Sci Ctr, Seattle, WA 98105 USA.
[Shaw, William J.; Stanton, Timothy P.] USN, Postgrad Sch, Monterey, CA 93943 USA.
RP Sirevaag, A (reprint author), Univ Bergen, Inst Geophys, Allegt 70, N-5007 Bergen, Norway.
EM anders.sirevaag@bjerknes.uib.no
RI Sirevaag, Anders/E-5144-2012
FU National Science Foundation [OPP-0337159, OPP-0739371]; NSF
[OPP-0338020]; [OPP-0337751]
FX The authors would like to thank the captain and crew of RVIB Nathaniel
B. Palmer and the logistic crew from Raytheon Polar Services for
excellent support during the MaudNESS field campaign. Two anonymous
reviewers also contributed significantly in improving the manuscript.
The work of M. G. McPhee was supported by the National Science
Foundation through grants OPP-0337159 and OPP-0739371, and the work of
J. H. Morison was supported by grant OPP-0337751. The Naval Postgraduate
School is acknowledged for the support for MaudNESS through NSF grant
OPP-0338020. This is publication A247 from the Bjerknes Centre for
Climate Research.
NR 34
TC 16
Z9 16
U1 0
U2 9
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 0148-0227
J9 J GEOPHYS RES-OCEANS
JI J. Geophys. Res.-Oceans
PD FEB 12
PY 2010
VL 115
AR C02009
DI 10.1029/2008JC005141
PG 15
WC Oceanography
SC Oceanography
GA 554VU
UT WOS:000274464300001
ER
PT J
AU Abdo, AA
Ackermann, M
Ajello, M
Baldini, L
Ballet, J
Barbiellini, G
Bastieri, D
Baughman, BM
Bechtol, K
Bellazzini, R
Berenji, B
Bloom, ED
Bonamente, E
Borgland, AW
Bregeon, J
Brez, A
Brigida, M
Bruel, P
Burnett, TH
Buson, S
Caliandro, GA
Cameron, RA
Caraveo, PA
Casandjian, JM
Cecchi, C
Celik, O
Chekhtman, A
Cheung, CC
Chiang, J
Ciprini, S
Claus, R
Cohen-Tanugi, J
Cominsky, LR
Conrad, J
Dermer, CD
de Palma, F
Digel, SW
Silva, EDE
Drell, PS
Dubois, R
Dumora, D
Farnier, C
Favuzzi, C
Fegan, SJ
Focke, WB
Fortin, P
Frailis, M
Fukazawa, Y
Funk, S
Fusco, P
Gargano, F
Gehrels, N
Germani, S
Giavitto, G
Giebels, B
Giglietto, N
Giordano, F
Glanzman, T
Godfrey, G
Grenier, IA
Grondin, MH
Grove, JE
Guillemot, L
Guiriec, S
Harding, AK
Hayashida, M
Horan, D
Hughes, RE
Jackson, MS
Johannesson, G
Johnson, AS
Johnson, WN
Kamae, T
Katagiri, H
Kataoka, J
Kawai, N
Kerr, M
Knodlseder, J
Kuss, M
Lande, J
Latronico, L
Lemoine-Goumard, M
Longo, F
Loparco, F
Lott, B
Lovellette, MN
Lubrano, P
Makeev, A
Mazziotta, MN
McEnery, JE
Meurer, C
Michelson, PF
Mitthumsiri, W
Mizuno, T
Monte, C
Monzani, ME
Morselli, A
Moskalenko, IV
Murgia, S
Nolan, PL
Norris, JP
Nuss, E
Ohsugi, T
Okumura, A
Omodei, N
Orlando, E
Ormes, JF
Paneque, D
Pelassa, V
Pepe, M
Pesce-Rollins, M
Piron, F
Porter, TA
Raino, S
Rando, R
Razzano, M
Reimer, A
Reimer, O
Reposeur, T
Rodriguez, AY
Ryde, F
Sadrozinski, HFW
Sanchez, D
Sander, A
Parkinson, PMS
Sgro, C
Siskind, EJ
Smith, PD
Spandre, G
Spinelli, P
Starck, JL
Strickman, MS
Strong, AW
Suson, DJ
Takahashi, H
Tanaka, T
Thayer, JB
Thayer, JG
Thompson, DJ
Tibaldo, L
Torres, DF
Tosti, G
Tramacere, A
Uchiyama, Y
Usher, TL
Vasileiou, V
Vilchez, N
Vitale, V
Waite, AP
Wang, P
Winer, BL
Wood, KS
Ylinen, T
Ziegler, M
AF Abdo, A. A.
Ackermann, M.
Ajello, M.
Baldini, L.
Ballet, J.
Barbiellini, G.
Bastieri, D.
Baughman, B. M.
Bechtol, K.
Bellazzini, R.
Berenji, B.
Bloom, E. D.
Bonamente, E.
Borgland, A. W.
Bregeon, J.
Brez, A.
Brigida, M.
Bruel, P.
Burnett, T. H.
Buson, S.
Caliandro, G. A.
Cameron, R. A.
Caraveo, P. A.
Casandjian, J. M.
Cecchi, C.
Celik, Oe.
Chekhtman, A.
Cheung, C. C.
Chiang, J.
Ciprini, S.
Claus, R.
Cohen-Tanugi, J.
Cominsky, L. R.
Conrad, J.
Dermer, C. D.
de Palma, F.
Digel, S. W.
do Couto e Silva, E.
Drell, P. S.
Dubois, R.
Dumora, D.
Farnier, C.
Favuzzi, C.
Fegan, S. J.
Focke, W. B.
Fortin, P.
Frailis, M.
Fukazawa, Y.
Funk, S.
Fusco, P.
Gargano, F.
Gehrels, N.
Germani, S.
Giavitto, G.
Giebels, B.
Giglietto, N.
Giordano, F.
Glanzman, T.
Godfrey, G.
Grenier, I. A.
Grondin, M. -H.
Grove, J. E.
Guillemot, L.
Guiriec, S.
Harding, A. K.
Hayashida, M.
Horan, D.
Hughes, R. E.
Jackson, M. S.
Johannesson, G.
Johnson, A. S.
Johnson, W. N.
Kamae, T.
Katagiri, H.
Kataoka, J.
Kawai, N.
Kerr, M.
Knoedlseder, J.
Kuss, M.
Lande, J.
Latronico, L.
Lemoine-Goumard, M.
Longo, F.
Loparco, F.
Lott, B.
Lovellette, M. N.
Lubrano, P.
Makeev, A.
Mazziotta, M. N.
McEnery, J. E.
Meurer, C.
Michelson, P. F.
Mitthumsiri, W.
Mizuno, T.
Monte, C.
Monzani, M. E.
Morselli, A.
Moskalenko, I. V.
Murgia, S.
Nolan, P. L.
Norris, J. P.
Nuss, E.
Ohsugi, T.
Okumura, A.
Omodei, N.
Orlando, E.
Ormes, J. F.
Paneque, D.
Pelassa, V.
Pepe, M.
Pesce-Rollins, M.
Piron, F.
Porter, T. A.
Raino, S.
Rando, R.
Razzano, M.
Reimer, A.
Reimer, O.
Reposeur, T.
Rodriguez, A. Y.
Ryde, F.
Sadrozinski, H. F. -W.
Sanchez, D.
Sander, A.
Parkinson, P. M. Saz
Sgro, C.
Siskind, E. J.
Smith, P. D.
Spandre, G.
Spinelli, P.
Starck, J. -L.
Strickman, M. S.
Strong, A. W.
Suson, D. J.
Takahashi, H.
Tanaka, T.
Thayer, J. B.
Thayer, J. G.
Thompson, D. J.
Tibaldo, L.
Torres, D. F.
Tosti, G.
Tramacere, A.
Uchiyama, Y.
Usher, T. L.
Vasileiou, V.
Vilchez, N.
Vitale, V.
Waite, A. P.
Wang, P.
Winer, B. L.
Wood, K. S.
Ylinen, T.
Ziegler, M.
TI FERMI OBSERVATIONS OF CASSIOPEIA AND CEPHEUS: DIFFUSE GAMMA-RAY EMISSION
IN THE OUTER GALAXY
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE cosmic rays; gamma rays: diffuse background; ISM: clouds
ID GIANT MOLECULAR CLOUDS; MILKY-WAY; INFRARED-EMISSION; BESS SPECTROMETER;
HELIUM SPECTRA; AREA TELESCOPE; COSMIC-RAYS; CO SURVEY; NGC 7538; IC 443
AB We present the analysis of the interstellar gamma-ray emission measured by the Fermi Large Area Telescope toward a region in the second Galactic quadrant at 100 degrees <= l <= 145 degrees and -15 degrees <= b <= +30 degrees. This region encompasses the prominent Gould Belt clouds of Cassiopeia, Cepheus, and the Polaris flare, as well as atomic and molecular complexes at larger distances, like that associated with NGC 7538 in the Perseus arm. The good kinematic separation in velocity between the local, Perseus, and outer arms, and the presence of massive complexes in each of them, make this region well suited to probe cosmic rays (CRs) and the interstellar medium beyond the solar circle. The gamma-ray emissivity spectrum of the gas in the Gould Belt is consistent with expectations based on the locally measured CR spectra. The gamma-ray emissivity decreases from the Gould Belt to the Perseus arm, but the measured gradient is flatter than expectations for CR sources peaking in the inner Galaxy as suggested by pulsars. The X-CO = N(H-2)/W-CO conversion factor is found to increase from (0.87 +/- 0.05) x 10(20) cm(-2) (K km s(-1))(-1) in the Gould Belt to (1.9 +/- 0.2) x 10(20) cm(-2) (K km s(-1))(-1) in the Perseus arm. We derive masses for the molecular clouds under study. Dark gas, not properly traced by radio and microwave surveys, is detected in the Gould Belt through a correlated excess of dust and gamma-ray emission: its mass amounts to similar to 50% of the CO-traced mass.
C1 [Abdo, A. A.; Chekhtman, A.; Cheung, C. C.; Dermer, C. D.; Grove, J. E.; Johnson, W. N.; Lovellette, M. N.; Makeev, A.; Strickman, M. S.; Wood, K. S.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Abdo, A. A.; Cheung, C. C.] Natl Acad Sci, Natl Res Council Res Associate, Washington, DC 20001 USA.
[Ackermann, M.; Ajello, M.; Bechtol, K.; Berenji, B.; Bloom, E. D.; Borgland, A. W.; Cameron, R. A.; Chiang, J.; Claus, R.; Digel, S. W.; do Couto e Silva, E.; Drell, P. S.; Dubois, R.; Focke, W. B.; Funk, S.; Glanzman, T.; Godfrey, G.; Hayashida, M.; Johannesson, G.; Johnson, A. S.; Kamae, T.; Lande, J.; Michelson, P. F.; Mitthumsiri, W.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Nolan, P. L.; Paneque, D.; Reimer, A.; Reimer, O.; Tanaka, T.; Thayer, J. B.; Thayer, J. G.; Tramacere, A.; Uchiyama, Y.; Usher, T. L.; Waite, A. P.; Wang, P.] Stanford Univ, WW Hansen Expt Phys Lab, Kavli Inst Particle Astrophys & Cosmol, Dept Phys, Stanford, CA 94305 USA.
[Ackermann, M.; Ajello, M.; Bechtol, K.; Berenji, B.; Bloom, E. D.; Borgland, A. W.; Cameron, R. A.; Chiang, J.; Claus, R.; Digel, S. W.; do Couto e Silva, E.; Drell, P. S.; Dubois, R.; Focke, W. B.; Funk, S.; Glanzman, T.; Godfrey, G.; Hayashida, M.; Johannesson, G.; Johnson, A. S.; Kamae, T.; Lande, J.; Michelson, P. F.; Mitthumsiri, W.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Nolan, P. L.; Paneque, D.; Reimer, A.; Reimer, O.; Tanaka, T.; Thayer, J. B.; Thayer, J. G.; Tramacere, A.; Uchiyama, Y.; Usher, T. L.; Waite, A. P.; Wang, P.] Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA.
[Baldini, L.; Bellazzini, R.; Bregeon, J.; Brez, A.; Kuss, M.; Latronico, L.; Omodei, N.; Pesce-Rollins, M.; Razzano, M.; Sgro, C.; Spandre, G.] Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy.
[Ballet, J.; Casandjian, J. M.; Grenier, I. A.; Starck, J. -L.; Tibaldo, L.] Univ Paris Diderot, CNRS, CEA Saclay, Lab AIM,CEA,IRFU,Serv Astrophys, F-91191 Gif Sur Yvette, France.
[Barbiellini, G.; Giavitto, G.; Longo, F.] Ist Nazl Fis Nucl, Sez Trieste, I-34127 Trieste, Italy.
[Barbiellini, G.; Giavitto, G.; Longo, F.] Univ Trieste, Dipartimento Fis, I-34127 Trieste, Italy.
[Bastieri, D.; Rando, R.; Tibaldo, L.] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy.
[Bastieri, D.; Buson, S.; Rando, R.; Tibaldo, L.] Univ Padua, Dipartimento Fis G Galilei, I-35131 Padua, Italy.
[Baughman, B. M.; Hughes, R. E.; Sander, A.; Smith, P. D.; Winer, B. L.] Ohio State Univ, Dept Phys, Ctr Cosmol & Astroparticle Phys, Columbus, OH 43210 USA.
[Bonamente, E.; Cecchi, C.; Germani, S.; Lubrano, P.; Pepe, M.; Tosti, G.] Ist Nazl Fis Nucl, Sez Perugia, I-06123 Perugia, Italy.
[Bonamente, E.; Cecchi, C.; Ciprini, S.; Germani, S.; Lubrano, P.; Pepe, M.; Tosti, G.] Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Giglietto, N.; Giordano, F.; Loparco, F.; Monte, C.; Raino, S.; Spinelli, P.] Univ & Politecn Bari, Dipartimento Fis M Merlin, I-70126 Bari, Italy.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Gargano, F.; Giglietto, N.; Giordano, F.; Loparco, F.; Mazziotta, M. N.; Monte, C.; Raino, S.; Spinelli, P.] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy.
[Bruel, P.; Fegan, S. J.; Fortin, P.; Giebels, B.; Horan, D.; Sanchez, D.] Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France.
[Burnett, T. H.; Kerr, M.] Univ Washington, Dept Phys, Seattle, WA 98195 USA.
[Caliandro, G. A.; Rodriguez, A. Y.; Torres, D. F.] CSIC, IEEC, Inst Ciencies Espai, Barcelona 08193, Spain.
[Caraveo, P. A.] Ist Astrofis Spaziale & Fis Cosm, INAF, I-20133 Milan, Italy.
[Celik, Oe.; Gehrels, N.; Harding, A. K.; McEnery, J. E.; Thompson, D. J.; Vasileiou, V.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Celik, Oe.; Vasileiou, V.] CRESST, Greenbelt, MD 20771 USA.
[Celik, Oe.; Vasileiou, V.] Univ Maryland Baltimore Cty, Dept Phys, Baltimore, MD 21250 USA.
[Celik, Oe.; Vasileiou, V.] Univ Maryland Baltimore Cty, Ctr Space Sci & Technol, Baltimore, MD 21250 USA.
[Chekhtman, A.; Makeev, A.] George Mason Univ, Fairfax, VA 22030 USA.
[Cohen-Tanugi, J.; Farnier, C.; Nuss, E.; Pelassa, V.; Piron, F.] Univ Montpellier 2, CNRS, IN2P3, Lab Phys Theor & Astroparticules, Montpellier, France.
[Cominsky, L. R.] Sonoma State Univ, Dept Phys & Astron, Rohnert Pk, CA 94928 USA.
[Conrad, J.; Meurer, C.] Stockholm Univ, Dept Phys, SE-10691 Stockholm, Sweden.
[Conrad, J.; Jackson, M. S.; Meurer, C.; Ryde, F.; Ylinen, T.] Oskar Klein Ctr Cosmoparticle Phys, SE-10691 Stockholm, Sweden.
[Dumora, D.; Grondin, M. -H.; Guillemot, L.; Lemoine-Goumard, M.; Lott, B.; Reposeur, T.] CEN Bordeaux Gradignan, CNRS, IN2P3, UMR 5797, F-33175 Gradignan, France.
[Dumora, D.; Grondin, M. -H.; Guillemot, L.; Lemoine-Goumard, M.; Lott, B.; Reposeur, T.] Univ Bordeaux, CEN Bordeaux Gradignan, UMR 5797, F-33175 Gradignan, France.
[Frailis, M.] Univ Udine, Dipartimento Fis, I-33100 Udine, Italy.
[Frailis, M.] Ist Nazl Fis Nucl, Sez Trieste, Grp Coll Udine, I-33100 Udine, Italy.
[Fukazawa, Y.; Katagiri, H.; Mizuno, T.; Ohsugi, T.; Takahashi, H.] Hiroshima Univ, Dept Phys Sci, Hiroshima 7398526, Japan.
[Gehrels, N.] Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA.
[Gehrels, N.; McEnery, J. E.] Univ Maryland, Dept Phys, College Pk, MD 20742 USA.
[Gehrels, N.; McEnery, J. E.] Univ Maryland, Dept Astron, College Pk, MD 20742 USA.
[Guiriec, S.] Univ Alabama, CSPAR, Huntsville, AL 35899 USA.
[Guillemot, L.] Max Planck Inst Radioastron, D-53121 Bonn, Germany.
[Jackson, M. S.; Ryde, F.; Ylinen, T.] Royal Inst Technol KTH, Dept Phys, SE-10691 Stockholm, Sweden.
[Kataoka, J.] Waseda Univ, Shinjuku Ku, Tokyo 1698050, Japan.
[Kawai, N.] Tokyo Inst Technol, Dept Phys, Meguro, Tokyo 1528551, Japan.
[Kawai, N.] RIKEN, Inst Phys & Chem Res, Cosm Radiat Lab, Wako, Saitama 3510198, Japan.
[Knoedlseder, J.; Vilchez, N.] UPS, CNRS, Ctr Etud Spatiale Rayonnements, F-31028 Toulouse 4, France.
[Morselli, A.; Vitale, V.] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, I-00133 Rome, Italy.
[Norris, J. P.; Ormes, J. F.] Univ Denver, Dept Phys & Astron, Denver, CO 80208 USA.
[Okumura, A.] Univ Tokyo, Grad Sch Sci, Dept Phys, Bunkyo Ku, Tokyo 1130033, Japan.
[Orlando, E.; Strong, A. W.] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany.
[Porter, T. A.; Sadrozinski, H. F. -W.; Parkinson, P. M. Saz; Ziegler, M.] Univ Calif Santa Cruz, Dept Phys, Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA.
[Porter, T. A.; Sadrozinski, H. F. -W.; Parkinson, P. M. Saz; Ziegler, M.] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA.
[Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria.
[Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria.
[Siskind, E. J.] NYCB Real Time Comp Inc, Lattingtown, NY 11560 USA.
[Suson, D. J.] Purdue Univ Calumet, Dept Chem & Phys, Hammond, IN 46323 USA.
[Torres, D. F.] ICREA, Barcelona, Spain.
[Tramacere, A.] CIFS, I-10133 Turin, Italy.
[Vitale, V.] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy.
[Ylinen, T.] Univ Kalmar, Sch Pure & Appl Nat Sci, SE-39182 Kalmar, Sweden.
RP Abdo, AA (reprint author), USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
EM isabelle.grenier@cea.fr; luigi.tibaldo@pd.infn.it
RI Starck, Jean-Luc/D-9467-2011; Thompson, David/D-2939-2012; Harding,
Alice/D-3160-2012; Gehrels, Neil/D-2971-2012; McEnery,
Julie/D-6612-2012; Baldini, Luca/E-5396-2012; lubrano,
pasquale/F-7269-2012; Morselli, Aldo/G-6769-2011; Nolan,
Patrick/A-5582-2009; Kuss, Michael/H-8959-2012; giglietto,
nicola/I-8951-2012; Tosti, Gino/E-9976-2013; Rando,
Riccardo/M-7179-2013; Johnson, Neil/G-3309-2014; Reimer,
Olaf/A-3117-2013; Funk, Stefan/B-7629-2015; Gargano, Fabio/O-8934-2015;
Loparco, Francesco/O-8847-2015; Johannesson, Gudlaugur/O-8741-2015;
Moskalenko, Igor/A-1301-2007; Mazziotta, Mario /O-8867-2015; Sgro,
Carmelo/K-3395-2016; Torres, Diego/O-9422-2016;
OI Starck, Jean-Luc/0000-0003-2177-7794; Thompson,
David/0000-0001-5217-9135; lubrano, pasquale/0000-0003-0221-4806;
Morselli, Aldo/0000-0002-7704-9553; giglietto,
nicola/0000-0002-9021-2888; Reimer, Olaf/0000-0001-6953-1385; Funk,
Stefan/0000-0002-2012-0080; Gargano, Fabio/0000-0002-5055-6395; Loparco,
Francesco/0000-0002-1173-5673; Johannesson,
Gudlaugur/0000-0003-1458-7036; Moskalenko, Igor/0000-0001-6141-458X;
Mazziotta, Mario /0000-0001-9325-4672; Torres,
Diego/0000-0002-1522-9065; Rando, Riccardo/0000-0001-6992-818X; Sgro',
Carmelo/0000-0001-5676-6214; Giordano, Francesco/0000-0002-8651-2394;
Frailis, Marco/0000-0002-7400-2135; Caraveo,
Patrizia/0000-0003-2478-8018; Bastieri, Denis/0000-0002-6954-8862;
Omodei, Nicola/0000-0002-5448-7577; Pesce-Rollins,
Melissa/0000-0003-1790-8018; Berenji, Bijan/0000-0002-4551-772X;
Tramacere, Andrea/0000-0002-8186-3793; Baldini, Luca/0000-0002-9785-7726
FU 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 Fermi LAT Collaboration acknowledges generous ongoing support from a
number of agencies and institutes that have supported both the
development and the operation of the LAT as well as scientific data
analysis. These include the National Aeronautics and Space
Administration and the Department of Energy in the United States, the
Commissariat a l'Energie Atomique and the Centre National de la
Recherche Scientifique/Institut National de Physique Nucleaire et de
Physique des Particules in France, the Agenzia Spaziale Italiana and the
Istituto Nazionale di Fisica Nucleare in Italy, the Ministry of
Education, Culture, Sports, Science, and Technology (MEXT), High Energy
Accelerator Research Organization (KEK) and Japan Aerospace Exploration
Agency (JAXA) in Japan, and the K.A. Wallenberg Foundation, the Swedish
Research Council, and the Swedish National Space Board in Sweden.;
Additional support for science analysis during the operations phase is
gratefully acknowledged from the Istituto Nazionale di Astrofisica in
Italy and the Centre National d'Etudes Spatiales in France.; We thank T.
H. Dame for providing moment-masked CO data including from some
observations not yet published.
NR 62
TC 104
Z9 105
U1 0
U2 8
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 2010
VL 710
IS 1
BP 133
EP 149
DI 10.1088/0004-637X/710/1/133
PG 17
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 546YH
UT WOS:000273850800015
ER
PT J
AU Abdo, AA
Ackermann, M
Ajello, M
Atwood, WB
Axelsson, M
Baldini, L
Ballet, J
Barbiellini, G
Bastieri, D
Baughman, BM
Bechtol, K
Bellazzini, R
Berenji, B
Bloom, ED
Bogaert, G
Bonamente, E
Borgland, AW
Bregeon, J
Brez, A
Brigida, M
Bruel, P
Burnett, TH
Caliandro, GA
Cameron, RA
Caraveo, PA
Casandjian, JM
Cavazzuti, E
Cecchi, C
Celik, O
Chekhtman, A
Cheung, CC
Chiang, J
Ciprini, S
Claus, R
Cohen-Tanugi, J
Conrad, J
Cutini, S
Dermer, CD
de Angelis, A
de Palma, F
Digel, SW
Silva, EDE
Drell, PS
Dubois, R
Dumora, D
Farnier, C
Favuzzi, C
Fegan, SJ
Ferrara, EC
Focke, WB
Frailis, M
Fuhrmann, L
Fukazawa, Y
Funk, S
Fusco, P
Gargano, F
Gasparrini, D
Gehrels, N
Germani, S
Giebels, B
Giglietto, N
Giordano, F
Giroletti, M
Glanzman, T
Godfrey, G
Grenier, IA
Grondin, MH
Grove, JE
Guillemot, L
Guiriec, S
Hanabata, Y
Harding, AK
Hayashida, M
Hays, E
Hughes, RE
Johannesson, G
Johnson, AS
Johnson, RP
Johnson, WN
Kadler, M
Kamae, T
Katagiri, H
Kataoka, J
Kerr, M
Knodlseder, J
Kocian, ML
Kuehn, F
Kuss, M
Lande, J
Latronico, L
Lemoine-Goumard, M
Longo, F
Loparco, F
Lott, B
Lovellette, MN
Lubrano, P
Madejski, GM
Makeev, A
Marelli, M
Massaro, E
Max-Moerbeck, W
Mazziotta, MN
McConville, W
McEnery, JE
Meurer, C
Michelson, PF
Mitthumsiri, W
Mizuno, T
Moiseev, AA
Monte, C
Monzani, ME
Morselli, A
Moskalenko, IV
Murgia, S
Nolan, PL
Norris, JP
Nuss, E
Ohsugi, T
Omodei, N
Orlando, E
Ormes, JF
Ozaki, M
Paneque, D
Panetta, JH
Parent, D
Pavlidou, V
Pearson, TJ
Pelassa, V
Pepe, M
Pesce-Rollins, M
Piron, F
Porter, TA
Raino, S
Rando, R
Razzano, M
Razzaque, S
Readhead, A
Reimer, A
Reimer, O
Reposeur, T
Richards, JL
Ritz, S
Rochester, LS
Rodriguez, AY
Romani, RW
Roth, M
Ryde, F
Sadrozinski, HFW
Sanchez, D
Sander, A
Parkinson, PMS
Scargle, JD
Sgro, C
Shaw, MS
Siskind, EJ
Smith, DA
Smith, PD
Spandre, G
Spinelli, P
Stevenson, M
Strickman, MS
Suson, DJ
Tajima, H
Takahashi, H
Tanaka, T
Thayer, JB
Thayer, JG
Thompson, DJ
Tibaldo, L
Tibolla, O
Torres, DF
Tosti, G
Tramacere, A
Ubertini, P
Uchiyama, Y
Usher, TL
Vasileiou, V
Vilchez, N
Vitale, V
Waite, AP
Wang, P
Winer, BL
Wood, KS
Yasuda, H
Ylinen, T
Zensus, JA
Ziegler, M
Angelakis, E
Hovatta, T
Hoversten, E
Ikejiri, Y
Kawabata, KS
Kovalev, YY
Kovalev, YA
Krichbaum, TP
Lister, ML
Lahteenmaki, A
Marchili, N
Ogle, P
Pagani, C
Pushkarev, AB
Sakimoto, K
Sasada, M
Tornikoski, M
Uemura, M
Yamanaka, M
Yamashita, T
AF Abdo, A. A.
Ackermann, M.
Ajello, M.
Atwood, W. B.
Axelsson, M.
Baldini, L.
Ballet, J.
Barbiellini, G.
Bastieri, D.
Baughman, B. M.
Bechtol, K.
Bellazzini, R.
Berenji, B.
Bloom, E. D.
Bogaert, G.
Bonamente, E.
Borgland, A. W.
Bregeon, J.
Brez, A.
Brigida, M.
Bruel, P.
Burnett, T. H.
Caliandro, G. A.
Cameron, R. A.
Caraveo, P. A.
Casandjian, J. M.
Cavazzuti, E.
Cecchi, C.
Celik, Oe.
Chekhtman, A.
Cheung, C. C.
Chiang, J.
Ciprini, S.
Claus, R.
Cohen-Tanugi, J.
Conrad, J.
Cutini, S.
Dermer, C. D.
de Angelis, A.
de Palma, F.
Digel, S. W.
do Couto e Silva, E.
Drell, P. S.
Dubois, R.
Dumora, D.
Farnier, C.
Favuzzi, C.
Fegan, S. J.
Ferrara, E. C.
Focke, W. B.
Frailis, M.
Fuhrmann, L.
Fukazawa, Y.
Funk, S.
Fusco, P.
Gargano, F.
Gasparrini, D.
Gehrels, N.
Germani, S.
Giebels, B.
Giglietto, N.
Giordano, F.
Giroletti, M.
Glanzman, T.
Godfrey, G.
Grenier, I. A.
Grondin, M. -H.
Grove, J. E.
Guillemot, L.
Guiriec, S.
Hanabata, Y.
Harding, A. K.
Hayashida, M.
Hays, E.
Hughes, R. E.
Johannesson, G.
Johnson, A. S.
Johnson, R. P.
Johnson, W. N.
Kadler, M.
Kamae, T.
Katagiri, H.
Kataoka, J.
Kerr, M.
Knoedlseder, J.
Kocian, M. L.
Kuehn, F.
Kuss, M.
Lande, J.
Latronico, L.
Lemoine-Goumard, M.
Longo, F.
Loparco, F.
Lott, B.
Lovellette, M. N.
Lubrano, P.
Madejski, G. M.
Makeev, A.
Marelli, M.
Massaro, E.
Max-Moerbeck, W.
Mazziotta, M. N.
McConville, W.
McEnery, J. E.
Meurer, C.
Michelson, P. F.
Mitthumsiri, W.
Mizuno, T.
Moiseev, A. A.
Monte, C.
Monzani, M. E.
Morselli, A.
Moskalenko, I. V.
Murgia, S.
Nolan, P. L.
Norris, J. P.
Nuss, E.
Ohsugi, T.
Omodei, N.
Orlando, E.
Ormes, J. F.
Ozaki, M.
Paneque, D.
Panetta, J. H.
Parent, D.
Pavlidou, V.
Pearson, T. J.
Pelassa, V.
Pepe, M.
Pesce-Rollins, M.
Piron, F.
Porter, T. A.
Raino, S.
Rando, R.
Razzano, M.
Razzaque, S.
Readhead, A.
Reimer, A.
Reimer, O.
Reposeur, T.
Richards, J. L.
Ritz, S.
Rochester, L. S.
Rodriguez, A. Y.
Romani, R. W.
Roth, M.
Ryde, F.
Sadrozinski, H. F. -W.
Sanchez, D.
Sander, A.
Parkinson, P. M. Saz
Scargle, J. D.
Sgro, C.
Shaw, M. S.
Siskind, E. J.
Smith, D. A.
Smith, P. D.
Spandre, G.
Spinelli, P.
Stevenson, M.
Strickman, M. S.
Suson, D. J.
Tajima, H.
Takahashi, H.
Tanaka, T.
Thayer, J. B.
Thayer, J. G.
Thompson, D. J.
Tibaldo, L.
Tibolla, O.
Torres, D. F.
Tosti, G.
Tramacere, A.
Ubertini, P.
Uchiyama, Y.
Usher, T. L.
Vasileiou, V.
Vilchez, N.
Vitale, V.
Waite, A. P.
Wang, P.
Winer, B. L.
Wood, K. S.
Yasuda, H.
Ylinen, T.
Zensus, J. A.
Ziegler, M.
Angelakis, E.
Hovatta, T.
Hoversten, E.
Ikejiri, Y.
Kawabata, K. S.
Kovalev, Y. Y.
Kovalev, Yu. A.
Krichbaum, T. P.
Lister, M. L.
Lahteenmaki, A.
Marchili, N.
Ogle, P.
Pagani, C.
Pushkarev, A. B.
Sakimoto, K.
Sasada, M.
Tornikoski, M.
Uemura, M.
Yamanaka, M.
Yamashita, T.
CA Fermi Lat Collaboration
TI PKS 1502+106: A NEW AND DISTANT GAMMA-RAY BLAZAR IN OUTBURST DISCOVERED
BY THE FERMI LARGE AREA TELESCOPE
SO ASTROPHYSICAL JOURNAL
LA English
DT Review
DE galaxies: active; galaxies: jets; gamma rays: general; quasars: general;
quasars: individual (PKS 1502+106); X-rays: galaxies
ID ACTIVE GALACTIC NUCLEI; BL LACERTAE OBJECTS; EXTRAGALACTIC
RADIO-SOURCES; MICROWAVE BACKGROUND-RADIATION; RAPID NONTHERMAL FLARES;
QUASI-STELLAR OBJECTS; SELF-COMPTON MODEL; ALL-SKY SURVEY; X-RAY;
SPACE-TELESCOPE
AB The Large Area Telescope (LAT) on board the Fermi Gamma-ray Space Telescope discovered a rapid (similar to 5 days duration), high-energy (E > 100 MeV) gamma-ray outburst from a source identified with the blazar PKS 1502+106 (OR 103, S3 1502+10, z = 1.839) starting on 2008 August 5 (similar to 23 UTC, MJD 54683.95), and followed by bright and variable flux over the next few months. Results on the gamma-ray localization and identification, as well as spectral and temporal behavior during the first months of the Fermi all-sky survey, are reported here in conjunction with a multiwaveband characterization as a result of one of the first Fermi multifrequency campaigns. The campaign included a Swift ToO (followed up by a 16 day observation on August 7-22, MJD 54685-54700), VLBA (within the MOJAVE program), Owens Valley Radio Observatory (OVRO) 40 m, Effelsberg-100 m, Metsahovi-14 m, RATAN-600, and Kanata-Hiroshima radio/optical observations. Results from the analysis of archival observations by INTEGRAL, XMM-Newton, and Spitzer space telescopes are reported for a more complete picture of this new gamma-ray blazar. PKS 1502+106 is a sub-GeV peaked, powerful flat spectrum radio quasar (luminosity at E > 100 MeV, L-gamma, is about 1.1 x 10(49) erg s(-1), and black hole mass likely close to 10(9) M-circle dot), exhibiting marked gamma-ray bolometric dominance, in particular during the asymmetric outburst (L-gamma/L-opt similar to 100, and 5 day averaged flux F-E > 100MeV = 2.91 +/- 1.4 x 10(-6) ph cm(-2) s(-1)), which was characterized by a factor greater than 3 of flux increase in less than 12 hr. The outburst was observed simultaneously from optical to X-ray bands (F0.3-10keV = 2.18(-0.12)(+0.15) x 10(-12) erg cm(-2) s(-1), and hard photon index similar to 1.5, similar to past values) with a flux increase of less than 1 order of magnitude with respect to past observations, and was likely controlled by Comptonization of external-jet photons produced in the broad-line region (BLR) in the gamma-ray band. No evidence of a possible blue bump signature was observed in the optical-UV continuum spectrum, while some hints for a possible 4 day time lag with respect to the gamma-ray flare were found. Nonetheless, the properties of PKS 1502+106 and the strict optical/UV, X-, and gamma-ray cross-correlations suggest the contribution of the synchrotron self-Compton (SSC), in-jet, process should dominate from radio to X- rays. This mechanism may also be responsible for the consistent gamma-ray variability observed by the LAT on longer timescales, after the ignition of activity at these energies provided by the BLR-dissipated outburst. Modulations and subsequent minor, rapid flare events were detected, with a general fluctuation mode between pink-noise and a random-walk. The averaged gamma-ray spectrum showed a deviation from a simple power law, and can be described by a log-parabola curved model peaking around 0.4-0.5 GeV. The maximum energy of photons detected from the source in the first four months of LAT observations was 15.8 GeV, with no significant consequences on extragalactic background light predictions. A possible radio counterpart of the gamma-ray outburst can be assumed only if a delay of more than three months is considered on the basis of opacity effects at cm and longer wavelengths.
The rotation of the electric vector position angle observed by VLBA from 2007 to 2008 could represent a slow field odering and alignment with respect to the jet axis, likely a precursor feature of the ejection of a superluminal radio knot and the high-energy outburst. This observing campaign provides more insight into the connection between MeV-GeV flares and the moving, polarized structures observed by the VLBI.
C1 [Bonamente, E.; Cecchi, C.; Ciprini, S.; Germani, S.; Lubrano, P.; Pepe, M.; Tosti, G.] Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy.
[Abdo, A. A.; Chekhtman, A.; Cheung, C. C.; Dermer, C. D.; Grove, J. E.; Johnson, W. N.; Lovellette, M. N.; Makeev, A.; Razzaque, S.; Strickman, M. S.; Wood, K. S.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Abdo, A. A.; Cheung, C. C.; Razzaque, S.] Natl Acad Sci, Natl Res Council, Washington, DC 20001 USA.
[Ackermann, M.; Ajello, M.; Bechtol, K.; Berenji, B.; Bloom, E. D.; Borgland, A. W.; Cameron, R. A.; Chiang, J.; Claus, R.; Digel, S. W.; do Couto e Silva, E.; Drell, P. S.; Dubois, R.; Focke, W. B.; Funk, S.; Glanzman, T.; Godfrey, G.; Hayashida, M.; Johannesson, G.; Johnson, A. S.; Kamae, T.; Kocian, M. L.; Lande, J.; Madejski, G. M.; Michelson, P. F.; Mitthumsiri, W.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Nolan, P. L.; Paneque, D.; Panetta, J. H.; Reimer, A.; Reimer, O.; Rochester, L. S.; Romani, R. W.; Shaw, M. S.; Tajima, H.; Tanaka, T.; Thayer, J. B.; Thayer, J. G.; Tramacere, A.; Uchiyama, Y.; Usher, T. L.; Waite, A. P.; Wang, P.] Stanford Univ, Dept Phys, Kavli Inst Particle Astrophys & Cosmol, WW Hansen Expt Phys Lab, Stanford, CA 94305 USA.
[Ackermann, M.; Ajello, M.; Bechtol, K.; Berenji, B.; Bloom, E. D.; Borgland, A. W.; Cameron, R. A.; Chiang, J.; Claus, R.; Digel, S. W.; do Couto e Silva, E.; Drell, P. S.; Dubois, R.; Focke, W. B.; Funk, S.; Glanzman, T.; Godfrey, G.; Hayashida, M.; Johannesson, G.; Johnson, A. S.; Kamae, T.; Kocian, M. L.; Lande, J.; Madejski, G. M.; Michelson, P. F.; Mitthumsiri, W.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Nolan, P. L.; Paneque, D.; Panetta, J. H.; Reimer, A.; Reimer, O.; Rochester, L. S.; Romani, R. W.; Shaw, M. S.; Tajima, H.; Tanaka, T.; Thayer, J. B.; Thayer, J. G.; Tramacere, A.; Uchiyama, Y.; Usher, T. L.; Waite, A. P.; Wang, P.] Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA.
[Atwood, W. B.; Johnson, R. P.; Porter, T. A.; Ritz, S.; Sadrozinski, H. F. -W.; Parkinson, P. M. Saz; Ziegler, M.] Univ Calif Santa Cruz, Dept Phys, Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA.
[Atwood, W. B.; Johnson, R. P.; Porter, T. A.; Ritz, S.; Sadrozinski, H. F. -W.; Parkinson, P. M. Saz; Ziegler, M.] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA.
[Axelsson, M.] Stockholm Univ, Dept Astron, SE-10691 Stockholm, Sweden.
[Axelsson, M.; Conrad, J.; Meurer, C.; Ryde, F.; Ylinen, T.] Oskar Klein Ctr Cosmoparticle Phys, SE-10691 Stockholm, Sweden.
[Baldini, L.; Bellazzini, R.; Bregeon, J.; Brez, A.; Kuss, M.; Latronico, L.; Omodei, N.; Pesce-Rollins, M.; Razzano, M.; Sgro, C.; Spandre, G.] Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy.
[Ballet, J.; Casandjian, J. M.; Grenier, I. A.; Tibaldo, L.] 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, Dipartmento Fis, I-34127 Trieste, Italy.
[Bastieri, D.; Rando, R.; Tibaldo, L.] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy.
[Bastieri, D.; Rando, R.; Tibaldo, L.] Univ Padua, Dipartimento Fis G Galilei, I-35131 Padua, Italy.
[Baughman, B. M.; Hughes, R. E.; Kuehn, F.; Sander, A.; Smith, P. D.; Winer, B. L.] Ohio State Univ, Dept Phys, Ctr Cosmol & Astroparticle Phys, Columbus, OH 43210 USA.
[Bogaert, G.; Bruel, P.; Fegan, S. J.; Giebels, B.; Sanchez, D.] Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France.
[Bonamente, E.; Cecchi, C.; Germani, S.; Lubrano, P.; Pepe, M.; Tosti, G.] Ist Nazl Fis Nucl, Sez Perugia, I-06123 Perugia, Italy.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Giglietto, N.; Giordano, F.; Loparco, F.; Monte, C.; Raino, S.; Spinelli, P.] Univ Bari, Dipartimento Fis M Merlin, I-70126 Bari, Italy.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Giglietto, N.; Giordano, F.; Loparco, F.; Monte, C.; Raino, S.; Spinelli, P.] Politecn Bari, I-70126 Bari, Italy.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Gargano, F.; Giglietto, N.; Giordano, F.; Loparco, F.; Mazziotta, M. N.; Monte, C.; Raino, S.; Spinelli, P.] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy.
[Burnett, T. H.; Kerr, M.; Roth, M.] Univ Washington, Dept Phys, Seattle, WA 98195 USA.
[Caliandro, G. A.; Rodriguez, A. Y.; Torres, D. F.] CSIC, Inst Ciencies Espai IEEC, Barcelona 08193, Spain.
[Caraveo, P. A.; Marelli, M.] Ist Astrofis Spaziale & Fis Cosm, INAF, I-20133 Milan, Italy.
[Cavazzuti, E.; Cutini, S.; Gasparrini, D.] Agenzia Spaziale Italiana ASI Sci Data Ctr, I-00044 Rome, Italy.
[Celik, Oe.; Ferrara, E. C.; Gehrels, N.; Harding, A. K.; Hays, E.; McConville, W.; McEnery, J. E.; Thompson, D. J.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Celik, Oe.; Kadler, M.; Moiseev, A. A.; Vasileiou, V.] CRESST, Greenbelt, MD 20771 USA.
[Celik, Oe.; Vasileiou, V.] Univ Maryland Baltimore Cty, Dept Phys, Baltimore, MD 21250 USA.
[Celik, Oe.; Vasileiou, V.] Univ Maryland Baltimore Cty, Ctr Space Sci & Technol, Baltimore, MD 21250 USA.
[Chekhtman, A.; Makeev, A.] George Mason Univ, Fairfax, VA 22030 USA.
[Cohen-Tanugi, J.; Farnier, C.; Nuss, E.; Pelassa, V.; Piron, F.] Univ Montpellier 2, CNRS, IN2P3, Lab Phys Theor & Astroparticules, Montpellier, France.
[Conrad, J.; Meurer, C.] Stockholm Univ, Dept Phys, SE-10691 Stockholm, Sweden.
[de Angelis, A.; Frailis, M.] Univ Udine, Dipartimento Fis, I-33100 Udine, Italy.
[de Angelis, A.; Frailis, M.] Ist Nazl Fis Nucl, Sez Trieste, Grp Collegato Udine, I-33100 Udine, Italy.
[Dumora, D.; Grondin, M. -H.; Lemoine-Goumard, M.; Lott, B.; Parent, D.; Reposeur, T.; Smith, D. A.] Univ Bordeaux, CEN Bordeaux Gradignan, UMR 5797, F-33175 Gradignan, France.
[Dumora, D.; Grondin, M. -H.; Lemoine-Goumard, M.; Lott, B.; Parent, D.; Reposeur, T.; Smith, D. A.] CEN Bordeaux Gradignan, UMR 5797, CNRS, IN2P3, F-33175 Gradignan, France.
[Fuhrmann, L.; Guillemot, L.; Zensus, J. A.; Angelakis, E.; Kovalev, Y. Y.; Krichbaum, T. P.; Marchili, N.; Pushkarev, A. B.] Max Planck Inst Radioastron, D-53121 Bonn, Germany.
[Fukazawa, Y.; Hanabata, Y.; Katagiri, H.; Mizuno, T.; Ohsugi, T.; Takahashi, H.; Yasuda, H.; Ikejiri, Y.; Sakimoto, K.; Sasada, M.; Yamanaka, M.] Hiroshima Univ, Dept Phys Sci, Hiroshima 7398526, Japan.
[Gehrels, N.; Hoversten, E.; Pagani, C.] Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA.
[Gehrels, N.; McConville, W.; McEnery, J. E.; Moiseev, A. A.] Univ Maryland, Dept Phys, College Pk, MD 20742 USA.
[Gehrels, N.; McConville, W.; McEnery, J. E.; Moiseev, A. A.] Univ Maryland, Dept Astron, College Pk, MD 20742 USA.
[Giroletti, M.] INAF Ist Radioastron, I-40129 Bologna, Italy.
[Guiriec, S.] Univ Alabama, Ctr Space Plasma & Aeron Res, Huntsville, AL 35899 USA.
[Kadler, M.] Dr Remeis Sternwarte Bamberg, D-96049 Bamberg, Germany.
[Kadler, M.] Erlangen Ctr Astroparticle Phys, D-91058 Erlangen, Germany.
[Kadler, M.] Univ Space Res Assoc, Columbia, MD 21044 USA.
[Kataoka, J.] Waseda Univ, Shinjuku Ku, Tokyo 1698050, Japan.
[Knoedlseder, J.; Vilchez, N.] UPS, CNRS, Ctr Etud Spatiale Rayonnements, F-31028 Toulouse 4, France.
[Massaro, E.] Univ Roma La Sapienza, I-00185 Rome, Italy.
[Max-Moerbeck, W.; Pavlidou, V.; Pearson, T. J.; Readhead, A.; Richards, J. L.; Stevenson, M.; Ogle, P.] CALTECH, Cahill Ctr Astron & Astrophys, Pasadena, CA 91125 USA.
[Morselli, A.; Vitale, V.] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, I-00133 Rome, Italy.
[Norris, J. P.; Ormes, J. F.] Univ Denver, Dept Phys & Astron, Denver, CO 80208 USA.
[Orlando, E.] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany.
[Ozaki, M.] JAXA, Inst Space & Astronaut Sci, Sagamihara, Kanagawa 2298510, Japan.
[Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria.
[Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria.
[Ryde, F.; Ylinen, T.] Royal Inst Technol KTH, Dept Phys, SE-10691 Stockholm, Sweden.
[Scargle, J. D.] NASA, Ames Res Ctr, Div Space Sci, Moffett Field, CA 94035 USA.
[Siskind, E. J.] NYCB Real Time Comp Inc, Lattingtown, NY 11560 USA.
[Suson, D. J.] Purdue Univ Calumet, Dept Chem & Phys, Hammond, IN 46323 USA.
[Tibolla, O.] Max Planck Inst Kernphys, D-69029 Heidelberg, Germany.
[Torres, D. F.] ICREA, Barcelona, Spain.
[Tramacere, A.] CIFS, I-10133 Turin, Italy.
[Ubertini, P.] Ist Astrofis Spaziale & Fis Cosm, INAF, I-00133 Rome, Italy.
[Vitale, V.] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy.
[Ylinen, T.] Univ Kalmar, Sch Pure & Appl Nat Sci, SE-39182 Kalmar, Sweden.
[Hovatta, T.; Lahteenmaki, A.; Tornikoski, M.] Aalto Univ, Metsahovi Radio Observ, FIN-02540 Kylmala, Finland.
[Kawabata, K. S.; Uemura, M.; Yamashita, T.] Hiroshima Univ, Hiroshima Astrophys Sci Ctr, Hiroshima 7398526, Japan.
[Kovalev, Y. Y.; Kovalev, Yu. A.] PN Lebedev Phys Inst, Ctr Astro Space, Moscow 117810, Russia.
[Lister, M. L.] Purdue Univ, Dept Phys, W Lafayette, IN 47907 USA.
[Pushkarev, A. B.] Crimean Astrophys Observ, UA-98409 Nauchnyi, Crimea, Ukraine.
[Pushkarev, A. B.] Pulkovo Observ, St Petersburg 196140, Russia.
RP Ciprini, S (reprint author), Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy.
EM stefano.ciprini@pg.infn.it
RI Mazziotta, Mario /O-8867-2015; Sgro, Carmelo/K-3395-2016; Torres,
Diego/O-9422-2016; Hays, Elizabeth/D-3257-2012; Johnson,
Neil/G-3309-2014; Reimer, Olaf/A-3117-2013; Kovalev, Yuri/J-5671-2013;
Funk, Stefan/B-7629-2015; Pavlidou, Vasiliki/C-2944-2011; Kovalev,
Yuri/N-1053-2015; Pearson, Timothy/N-2376-2015; Loparco,
Francesco/O-8847-2015; Gargano, Fabio/O-8934-2015; Johannesson,
Gudlaugur/O-8741-2015; Pushkarev, Alexander/M-9997-2015; Moskalenko,
Igor/A-1301-2007; giglietto, nicola/I-8951-2012; Tosti,
Gino/E-9976-2013; Ozaki, Masanobu/K-1165-2013; Rando,
Riccardo/M-7179-2013; Thompson, David/D-2939-2012; Harding,
Alice/D-3160-2012; Gehrels, Neil/D-2971-2012; McEnery,
Julie/D-6612-2012; Lahteenmaki, Anne/L-5987-2013; Baldini,
Luca/E-5396-2012; lubrano, pasquale/F-7269-2012; Morselli,
Aldo/G-6769-2011; Nolan, Patrick/A-5582-2009; Kuss, Michael/H-8959-2012;
OI Mazziotta, Mario /0000-0001-9325-4672; Torres,
Diego/0000-0002-1522-9065; Rando, Riccardo/0000-0001-6992-818X; Sgro',
Carmelo/0000-0001-5676-6214; Giordano, Francesco/0000-0002-8651-2394; De
Angelis, Alessandro/0000-0002-3288-2517; Frailis,
Marco/0000-0002-7400-2135; Caraveo, Patrizia/0000-0003-2478-8018;
Sasada, Mahito/0000-0001-5946-9960; Bastieri, Denis/0000-0002-6954-8862;
Omodei, Nicola/0000-0002-5448-7577; Pesce-Rollins,
Melissa/0000-0003-1790-8018; Axelsson, Magnus/0000-0003-4378-8785;
Giroletti, Marcello/0000-0002-8657-8852; Angelakis,
Emmanouil/0000-0001-7327-5441; Kadler, Matthias/0000-0001-5606-6154;
Cutini, Sara/0000-0002-1271-2924; Berenji, Bijan/0000-0002-4551-772X;
Gasparrini, Dario/0000-0002-5064-9495; Reimer, Olaf/0000-0001-6953-1385;
Kovalev, Yuri/0000-0001-9303-3263; Funk, Stefan/0000-0002-2012-0080;
Pavlidou, Vasiliki/0000-0002-0870-1368; Pearson,
Timothy/0000-0001-5213-6231; Loparco, Francesco/0000-0002-1173-5673;
Gargano, Fabio/0000-0002-5055-6395; Johannesson,
Gudlaugur/0000-0003-1458-7036; Moskalenko, Igor/0000-0001-6141-458X;
giglietto, nicola/0000-0002-9021-2888; Thompson,
David/0000-0001-5217-9135; lubrano, pasquale/0000-0003-0221-4806;
Morselli, Aldo/0000-0002-7704-9553; Tramacere,
Andrea/0000-0002-8186-3793; Baldini, Luca/0000-0002-9785-7726; Marelli,
Martino/0000-0002-8017-0338
FU National Aeronautics and Space Administration and the Department of
Energy in the United States; 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; Agenzia
Spaziale Italiana (ASI) and the Istituto Nazionale di Fisica Nucleare
(INFN) 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 (INAF) in Italy; Centre
National d'Etudes Spatiales in France; ASI-INAF [I/047/8/0]; ESA Member
States; NASA [NNX08AW31G, NNX08AV67G]; NSF [AST-0808050, 0807860AST];
Russian Foundation for Basic Research [01-02-16812, 05-0217377,
08-02-00545]; Academy of Finland
FX This research is based on observations obtained with the Fermi Gamma-ray
Space Telescope. 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 (ASI)
and the Istituto Nazionale di Fisica Nucleare (INFN) 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 (INAF) in Italy and the Centre National d'Etudes Spatiales
in France. S.C. acknowledges funding by grant ASI-INAF n.I/047/8/0
related to Fermi on-orbit activities. This research has made use of the
NASA/IPAC NED database (JPL CalTech and NASA, USA), the HEASARC database
(LHEA NASA/GSFC and SAO, USA), the Smithsonian/NASA's ADS bibliographic
databases, and the SIMBAD database (CDS, Strasbourg, France). This work
includes observations obtained with the NASA Swift gamma-ray burst
Explorer. This work includes observations obtained with the Spitzer
Space Telescope (operated by the Jet Propulsion Laboratory, California
Institute of Technology under a contract with NASA). This work includes
observations obtained with XMM-Newton, an ESA science mission with
instruments and contributions directly funded by ESA Member States and
NASA. This work has made use of observations obtained with the Owens
Valley Radio Observatory. The monitoring program at the Owens Valley
Radio Observatory is supported by NASA award No. NNX08AW31G, and NSF
award No. AST-0808050. This research has made use of observations from
the MOJAVE database that is maintained by the MOJAVE team. The MOJAVE
project is supported under National Science Foundation grant 0807860AST
and NASA-Fermi grant NNX08AV67G. The National Radio Astronomy
Observatory (NRAO VLBA) is a facility of the National Science Foundation
operated under cooperative agreement by Associated Universities, Inc.
This research has made use of observations obtained with the 100 m
telescope of the MPIfR (Max-Planck-Institut fur Radioastronomie) at
Effelsberg, Germany. This research has made use of observations from the
RATAN-600 that is partly supported by the Russian Foundation for Basic
Research (projects 01-02-16812, 05-0217377, and 08-02-00545). This work
has made use of observations obtained with the 14 m Metsahovi Radio
Observatory, a separate research institute of the Helsinki University of
Technology. The Metsahovi team acknowledges the support from the Academy
of Finland. This work has made use of observations obtained with the
TRISPEC instrument on the Kanata telescope that is operated by Hiroshima
University, Japan. Y.Y.K. is a Research Fellow of the Alexander von
Humboldt Foundation. The LAT team and multifrequency collaboration
extend thanks to the anonymous referee who made very useful comments.
NR 130
TC 48
Z9 48
U1 5
U2 15
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 2010
VL 710
IS 1
BP 810
EP 827
DI 10.1088/0004-637X/710/1/810
PG 18
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 546YH
UT WOS:000273850800063
ER
PT J
AU Abdo, AA
Ackermann, M
Ajello, M
Allafort, A
Baldini, L
Ballet, J
Barbiellini, G
Baring, MG
Bastieri, D
Baughman, BM
Bechtol, K
Bellazzini, R
Berenji, B
Blandford, RD
Bloom, ED
Bonamente, E
Borgland, AW
Bregeon, J
Brez, A
Brigida, M
Bruel, P
Buehler, R
Burnett, TH
Busetto, G
Caliandro, GA
Cameron, RA
Caraveo, PA
Casandjian, JM
Cecchi, C
Celik, O
Charles, E
Chaty, S
Chekhtman, A
Cheung, CC
Chiang, J
Cillis, AN
Ciprini, S
Claus, R
Cohen-Tanugi, J
Conrad, J
Corbel, S
de Palma, F
Digel, SW
Dormody, M
Silva, EDE
Drell, PS
Dubois, R
Dumora, D
Edmonds, Y
Farnier, C
Favuzzi, C
Fegan, SJ
Ferrara, EC
Focke, WB
Fortin, P
Frailis, M
Fukazawa, Y
Funk, S
Fusco, P
Gargano, F
Gasparrini, D
Gehrels, N
Germani, S
Giavitto, G
Giglietto, N
Giordano, F
Glanzman, T
Godfrey, G
Grenier, IA
Grondin, MH
Grove, JE
Guillemot, L
Guiriec, S
Hanabata, Y
Hays, E
Harding, AK
Hayashida, M
Horan, D
Hughes, RE
Jackson, MS
Johnson, AS
Johnson, TJ
Johnson, WN
Kamae, T
Katagiri, H
Kataoka, J
Kawai, N
Kerr, M
Knodlseder, J
Kuss, M
Lande, J
Latronico, L
Lemoine-Goumard, M
Longo, F
Loparco, F
Lott, B
Lovellette, MN
Lubrano, P
Makeev, A
Mazziotta, MN
Meurer, C
Michelson, PF
Mitthumsiri, W
Mizuno, T
Monte, C
Monzani, ME
Morselli, A
Moskalenko, IV
Murgia, S
Nakamori, T
Nolan, PL
Norris, JP
Nuss, E
Ohsugi, T
Okumura, A
Omodei, N
Orlando, E
Ormes, JF
Paneque, D
Panetta, JH
Pelassa, V
Pepe, M
Pesce-Rollins, M
Piron, F
Pohl, M
Porter, TA
Raino, S
Rando, R
Reimer, A
Reimer, O
Reposeur, T
Ritz, S
Rodriguez, AY
Romani, RW
Roth, M
Sadrozinski, HFW
Sander, A
Parkinson, PMS
Scargle, JD
Sgro, C
Siskind, EJ
Smith, DA
Smith, PD
Spinelli, P
Strickman, MS
Suson, DJ
Tajima, H
Takahashi, T
Tanaka, T
Thayer, JB
Thayer, JG
Thompson, DJ
Thorsett, SE
Tibaldo, L
Tibolla, O
Torres, DF
Tosti, G
Tramacere, A
Uchiyama, Y
Usher, TL
Van Etten, A
Vasileiou, V
Venter, C
Vilchez, N
Vitale, V
Waite, AP
Wang, P
Winer, BL
Wood, KS
Yamazaki, R
Ylinen, T
Ziegler, M
AF Abdo, A. A.
Ackermann, M.
Ajello, M.
Allafort, A.
Baldini, L.
Ballet, J.
Barbiellini, G.
Baring, M. G.
Bastieri, D.
Baughman, B. M.
Bechtol, K.
Bellazzini, R.
Berenji, B.
Blandford, R. D.
Bloom, E. D.
Bonamente, E.
Borgland, A. W.
Bregeon, J.
Brez, A.
Brigida, M.
Bruel, P.
Buehler, R.
Burnett, T. H.
Busetto, G.
Caliandro, G. A.
Cameron, R. A.
Caraveo, P. A.
Casandjian, J. M.
Cecchi, C.
Celik, Oe.
Charles, E.
Chaty, S.
Chekhtman, A.
Cheung, C. C.
Chiang, J.
Cillis, A. N.
Ciprini, S.
Claus, R.
Cohen-Tanugi, J.
Conrad, J.
Corbel, S.
de Palma, F.
Digel, S. W.
Dormody, M.
do Couto e Silva, E.
Drell, P. S.
Dubois, R.
Dumora, D.
Edmonds, Y.
Farnier, C.
Favuzzi, C.
Fegan, S. J.
Ferrara, E. C.
Focke, W. B.
Fortin, P.
Frailis, M.
Fukazawa, Y.
Funk, S.
Fusco, P.
Gargano, F.
Gasparrini, D.
Gehrels, N.
Germani, S.
Giavitto, G.
Giglietto, N.
Giordano, F.
Glanzman, T.
Godfrey, G.
Grenier, I. A.
Grondin, M. -H.
Grove, J. E.
Guillemot, L.
Guiriec, S.
Hanabata, Y.
Hays, E.
Harding, A. K.
Hayashida, M.
Horan, D.
Hughes, R. E.
Jackson, M. S.
Johnson, A. S.
Johnson, T. J.
Johnson, W. N.
Kamae, T.
Katagiri, H.
Kataoka, J.
Kawai, N.
Kerr, M.
Knoedlseder, J.
Kuss, M.
Lande, J.
Latronico, L.
Lemoine-Goumard, M.
Longo, F.
Loparco, F.
Lott, B.
Lovellette, M. N.
Lubrano, P.
Makeev, A.
Mazziotta, M. N.
Meurer, C.
Michelson, P. F.
Mitthumsiri, W.
Mizuno, T.
Monte, C.
Monzani, M. E.
Morselli, A.
Moskalenko, I. V.
Murgia, S.
Nakamori, T.
Nolan, P. L.
Norris, J. P.
Nuss, E.
Ohsugi, T.
Okumura, A.
Omodei, N.
Orlando, E.
Ormes, J. F.
Paneque, D.
Panetta, J. H.
Pelassa, V.
Pepe, M.
Pesce-Rollins, M.
Piron, F.
Pohl, M.
Porter, T. A.
Raino, S.
Rando, R.
Reimer, A.
Reimer, O.
Reposeur, T.
Ritz, S.
Rodriguez, A. Y.
Romani, R. W.
Roth, M.
Sadrozinski, H. F. -W.
Sander, A.
Parkinson, P. M. Saz
Scargle, J. D.
Sgro, C.
Siskind, E. J.
Smith, D. A.
Smith, P. D.
Spinelli, P.
Strickman, M. S.
Suson, D. J.
Tajima, H.
Takahashi, T.
Tanaka, T.
Thayer, J. B.
Thayer, J. G.
Thompson, D. J.
Thorsett, S. E.
Tibaldo, L.
Tibolla, O.
Torres, D. F.
Tosti, G.
Tramacere, A.
Uchiyama, Y.
Usher, T. L.
Van Etten, A.
Vasileiou, V.
Venter, C.
Vilchez, N.
Vitale, V.
Waite, A. P.
Wang, P.
Winer, B. L.
Wood, K. S.
Yamazaki, R.
Ylinen, T.
Ziegler, M.
TI FERMI-LAT DISCOVERY OF GeV GAMMA-RAY EMISSION FROM THE YOUNG SUPERNOVA
REMNANT CASSIOPEIA A
SO ASTROPHYSICAL JOURNAL LETTERS
LA English
DT Article
DE acceleration of particles; ISM: individual objects (Cassiopeia A);
radiation mechanisms: non-thermal
ID MAGNETIC-FIELD; COSMIC-RAYS; SHOCK ACCELERATION; PARTICLE-ACCELERATION;
SYNCHROTRON EMISSION; AMPLIFICATION; TELESCOPE; CHANDRA; ENERGY; EJECTA
AB We report on the first detection of GeV high-energy gamma-ray emission from a young supernova remnant (SNR) with the Large Area Telescope aboard the Fermi Gamma-ray Space Telescope. These observations reveal a source with no discernible spatial extension detected at a significance level of 12.2 sigma above 500 MeV a a location that is consistent with the position of the remnant of the supernova explosion that occurred around 1680 in the Cassiopeia constellation-Cassiopeia A (Cas A). The gamma-ray flux and spectral shape of the source are consistent with a scenario in which the gamma-ray emission originates from relativistic particles accelerated in the shell of this remnant. The total content of cosmic rays (electrons and protons) accelerated in Cas A can be estimated as W-CR similar or equal to (1-4) x 10(49) erg thanks to the well-known density in the remnant assuming that the observed gamma ray originates in the SNR shell(s). The magnetic field in the radio-emitting plasma can be robustly constrained as B >= 0.1 mG, providing new evidence of the magnetic field amplification at the forward shock and the strong field in the shocked ejecta.
C1 [Abdo, A. A.; Chekhtman, A.; Cheung, C. C.; Grove, J. E.; Johnson, W. N.; Lovellette, M. N.; Makeev, A.; Strickman, M. S.; Wood, K. S.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Abdo, A. A.; Cheung, C. C.] Natl Acad Sci, Natl Res Council Res Associate, Washington, DC 20001 USA.
[Ackermann, M.; Ajello, M.; Allafort, A.; Bechtol, K.; Berenji, B.; Blandford, R. D.; Bloom, E. D.; Borgland, A. W.; Buehler, R.; Cameron, R. A.; Charles, E.; Chiang, J.; Claus, R.; Digel, S. W.; do Couto e Silva, E.; Drell, P. S.; Dubois, R.; Edmonds, Y.; Focke, W. B.; Funk, S.; Glanzman, T.; Godfrey, G.; Hayashida, M.; Johnson, A. S.; Kamae, T.; Lande, J.; Michelson, P. F.; Mitthumsiri, W.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Nolan, P. L.; Paneque, D.; Panetta, J. H.; Reimer, A.; Reimer, O.; Romani, R. W.; Tajima, H.; Tanaka, T.; Thayer, J. B.; Thayer, J. G.; Tramacere, A.; Uchiyama, Y.; Usher, T. L.; Van Etten, A.; Waite, A. P.; Wang, P.] Stanford Univ, WW Hansen Expt Phys Lab, Kavli Inst Particle Astrophys & Cosmol, Dept Phys, Stanford, CA 94305 USA.
[Ackermann, M.; Ajello, M.; Allafort, A.; Bechtol, K.; Berenji, B.; Blandford, R. D.; Bloom, E. D.; Borgland, A. W.; Buehler, R.; Cameron, R. A.; Charles, E.; Chiang, J.; Claus, R.; Digel, S. W.; do Couto e Silva, E.; Drell, P. S.; Dubois, R.; Edmonds, Y.; Focke, W. B.; Funk, S.; Glanzman, T.; Godfrey, G.; Hayashida, M.; Johnson, A. S.; Kamae, T.; Lande, J.; Michelson, P. F.; Mitthumsiri, W.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Nolan, P. L.; Paneque, D.; Panetta, J. H.; Reimer, A.; Reimer, O.; Romani, R. W.; Tajima, H.; Tanaka, T.; Thayer, J. B.; Thayer, J. G.; Tramacere, A.; Uchiyama, Y.; Usher, T. L.; Van Etten, A.; Waite, A. P.; Wang, P.] Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA.
[Baldini, L.; Bellazzini, R.; Bregeon, J.; Brez, A.; Kuss, M.; Latronico, L.; Omodei, N.; Pesce-Rollins, M.; Sgro, C.] Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy.
[Ballet, J.; Casandjian, J. M.; Chaty, S.; Corbel, S.; Grenier, I. A.; Tibaldo, L.] Univ Paris Diderot, CNRS, CEA Saclay, Lab AIM,CEA IRFU,Serv Astrophys, F-91191 Gif Sur Yvette, France.
[Barbiellini, G.; Giavitto, G.; Longo, F.] Ist Nazl Fis Nucl, Sez Trieste, I-34127 Trieste, Italy.
[Barbiellini, G.; Giavitto, G.; Longo, F.] Univ Trieste, Dipartimento Fis, I-34127 Trieste, Italy.
[Baring, M. G.] Rice Univ, Dept Phys & Astron, Houston, TX 77251 USA.
[Bastieri, D.; Busetto, G.; Rando, R.; Tibaldo, L.] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy.
[Bastieri, D.; Busetto, G.; Rando, R.; Tibaldo, L.] Univ Padua, Dipartimento Fis G Galilei, I-35131 Padua, Italy.
[Baughman, B. M.; Hughes, R. E.; Sander, A.; Smith, P. D.; Winer, B. L.] Ohio State Univ, Dept Phys, Ctr Cosmol & Astroparticle Phys, Columbus, OH 43210 USA.
[Bonamente, E.; Cecchi, C.; Germani, S.; Lubrano, P.; Pepe, M.; Tosti, G.] Ist Nazl Fis Nucl, Sez Perugia, I-06123 Perugia, Italy.
[Bonamente, E.; Cecchi, C.; Ciprini, S.; Germani, S.; Lubrano, P.; Pepe, M.; Tosti, G.] Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Giglietto, N.; Giordano, F.; Loparco, F.; Monte, C.; Raino, S.; Spinelli, P.] Univ & Politecn Bari, Dipartimento Fis M Merlin, I-70126 Bari, Italy.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Gargano, F.; Giglietto, N.; Giordano, F.; Loparco, F.; Mazziotta, M. N.; Monte, C.; Raino, S.; Spinelli, P.] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy.
[Bruel, P.; Fegan, S. J.; Fortin, P.; Horan, D.] Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France.
[Burnett, T. H.; Kerr, M.; Roth, M.] Univ Washington, Dept Phys, Seattle, WA 98195 USA.
[Caliandro, G. A.; Rodriguez, A. Y.; Torres, D. F.] CSIC, IEEC, Inst Ciencies Espai, Barcelona 08193, Spain.
[Caraveo, P. A.] Ist Astrofis Spaziale & Fis Cosm, INAF, I-20133 Milan, Italy.
[Celik, Oe.; Cillis, A. N.; Ferrara, E. C.; Gehrels, N.; Hays, E.; Harding, A. K.; Johnson, T. J.; Thompson, D. J.; Vasileiou, V.; Venter, C.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Celik, Oe.; Vasileiou, V.] CRESST, Greenbelt, MD 20771 USA.
[Celik, Oe.; Vasileiou, V.] Univ Maryland Baltimore Cty, Dept Phys, Baltimore, MD 21250 USA.
[Celik, Oe.; Vasileiou, V.] Univ Maryland Baltimore Cty, Ctr Space Sci & Technol, Baltimore, MD 21250 USA.
[Chekhtman, A.; Makeev, A.] George Mason Univ, Fairfax, VA 22030 USA.
[Cohen-Tanugi, J.; Farnier, C.; Nuss, E.; Pelassa, V.; Piron, F.] Univ Montpellier 2, CNRS, IN2P3, Lab Phys Theor & Astroparticules, Montpellier, France.
[Conrad, J.; Meurer, C.] Stockholm Univ, Dept Phys, SE-10691 Stockholm, Sweden.
[Conrad, J.; Jackson, M. S.; Meurer, C.; Ylinen, T.] AlbaNova, Oskar Klein Ctr Cosmoparticle Phys, SE-10691 Stockholm, Sweden.
[Dormody, M.; Porter, T. A.; Ritz, S.; Sadrozinski, H. F. -W.; Parkinson, P. M. Saz; Thorsett, S. E.; Ziegler, M.] Univ Calif Santa Cruz, Santa Cruz Inst Particle Phys, Dept Phys, Santa Cruz, CA 95064 USA.
[Dormody, M.; Porter, T. A.; Ritz, S.; Sadrozinski, H. F. -W.; Parkinson, P. M. Saz; Thorsett, S. E.; Ziegler, M.] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA.
[Dumora, D.; Grondin, M. -H.; Lemoine-Goumard, M.; Lott, B.; Reposeur, T.; Smith, D. A.] Univ Bordeaux, CEN Bordeaux Gradignan, UMR 5797, F-33175 Gradignan, France.
[Dumora, D.; Grondin, M. -H.; Lemoine-Goumard, M.; Lott, B.; Reposeur, T.; Smith, D. A.] CEN Bordeaux Gradignan, CNRS, IN2P3, UMR 5797, F-33175 Gradignan, France.
[Frailis, M.] Univ Udine, Dipartimento Fis, I-33100 Udine, Italy.
[Frailis, M.] Ist Nazl Fis Nucl, Sez Trieste, Grp Collegato Udine, I-33100 Udine, Italy.
[Fukazawa, Y.; Hanabata, Y.; Katagiri, H.; Mizuno, T.; Ohsugi, T.; Yamazaki, R.] Hiroshima Univ, Dept Phys Sci, Hiroshima 7398526, Japan.
[Gasparrini, D.] ASI, Sci Data Ctr, I-00044 Frascati, Roma, Italy.
[Gehrels, N.] Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA.
[Gehrels, N.; Johnson, T. J.] Univ Maryland, Dept Phys, College Pk, MD 20742 USA.
[Gehrels, N.; Johnson, T. J.] Univ Maryland, Dept Astron, College Pk, MD 20742 USA.
[Guillemot, L.] Max Planck Inst Radioastron, D-53121 Bonn, Germany.
[Guiriec, S.] Univ Alabama, CSPAR, Huntsville, AL 35899 USA.
[Jackson, M. S.; Ylinen, T.] Royal Inst Technol KTH, Dept Phys, SE-10691 Stockholm, Sweden.
[Kataoka, J.] Waseda Univ, Shinjuku Ku, Tokyo 1698050, Japan.
[Kawai, N.; Nakamori, T.] Tokyo Inst Technol, Dept Phys, Meguro, Tokyo 1528551, Japan.
[Kawai, N.] RIKEN, Cosm Radiat Lab, Inst Phys & Chem Res, Wako, Saitama 3510198, Japan.
[Knoedlseder, J.; Vilchez, N.] CNRS, UPS, Ctr Etud Spatiale Rayonnements, F-31028 Toulouse 4, France.
[Morselli, A.; Vitale, V.] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, I-00133 Rome, Italy.
[Norris, J. P.; Ormes, J. F.] Univ Denver, Dept Phys & Astron, Denver, CO 80208 USA.
[Okumura, A.] Univ Tokyo, Dept Phys, Grad Sch Sci, Bunkyo Ku, Tokyo 1130033, Japan.
[Orlando, E.] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany.
[Pohl, M.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA.
[Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria.
[Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria.
[Scargle, J. D.] NASA, Ames Res Ctr, Div Space Sci, Moffett Field, CA 94035 USA.
[Siskind, E. J.] NYCB Real Time Comp Inc, Lattingtown, NY 11560 USA.
[Suson, D. J.] Purdue Univ Calumet, Dept Chem & Phys, Hammond, IN 46323 USA.
[Takahashi, T.] Japan Aerosp Explorat Agcy, Inst Space & Astronaut Sci, Sagamihara, Kanagawa 2298510, Japan.
[Tibolla, O.] Max Planck Inst Kernphys, D-69029 Heidelberg, Germany.
[Torres, D. F.] ICREA, Barcelona, Spain.
[Tramacere, A.] CIFS, I-10133 Turin, Italy.
[Venter, C.] North West Univ, Unit Space Phys, ZA-2520 Potchefstroom, South Africa.
[Vitale, V.] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy.
[Ylinen, T.] Univ Kalmar, Sch Pure & Appl Nat Sci, SE-39182 Kalmar, Sweden.
RP Abdo, AA (reprint author), USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
EM funk@slac.stanford.edu; uchiyama@slac.stanford.edu
RI Kuss, Michael/H-8959-2012; Venter, Christo/E-6884-2011; Thompson,
David/D-2939-2012; giglietto, nicola/I-8951-2012; Tosti,
Gino/E-9976-2013; Rando, Riccardo/M-7179-2013; Hays,
Elizabeth/D-3257-2012; Johnson, Neil/G-3309-2014; Harding,
Alice/D-3160-2012; Gehrels, Neil/D-2971-2012; Baldini, Luca/E-5396-2012;
lubrano, pasquale/F-7269-2012; Morselli, Aldo/G-6769-2011; Nolan,
Patrick/A-5582-2009; Reimer, Olaf/A-3117-2013; Funk, Stefan/B-7629-2015;
Gargano, Fabio/O-8934-2015; Loparco, Francesco/O-8847-2015; Moskalenko,
Igor/A-1301-2007; Mazziotta, Mario /O-8867-2015; Sgro,
Carmelo/K-3395-2016; Torres, Diego/O-9422-2016;
OI Caraveo, Patrizia/0000-0003-2478-8018; Bastieri,
Denis/0000-0002-6954-8862; Omodei, Nicola/0000-0002-5448-7577; Chaty,
Sylvain/0000-0002-5769-8601; Pesce-Rollins, Melissa/0000-0003-1790-8018;
Gasparrini, Dario/0000-0002-5064-9495; Tramacere,
Andrea/0000-0002-8186-3793; Baldini, Luca/0000-0002-9785-7726; Venter,
Christo/0000-0002-2666-4812; Thompson, David/0000-0001-5217-9135;
giglietto, nicola/0000-0002-9021-2888; lubrano,
pasquale/0000-0003-0221-4806; Morselli, Aldo/0000-0002-7704-9553;
Reimer, Olaf/0000-0001-6953-1385; Funk, Stefan/0000-0002-2012-0080;
Gargano, Fabio/0000-0002-5055-6395; Loparco,
Francesco/0000-0002-1173-5673; Moskalenko, Igor/0000-0001-6141-458X;
Mazziotta, Mario /0000-0001-9325-4672; Torres,
Diego/0000-0002-1522-9065; Sgro', Carmelo/0000-0001-5676-6214; Giordano,
Francesco/0000-0002-8651-2394; Thorsett, Stephen/0000-0002-2025-9613;
Rando, Riccardo/0000-0001-6992-818X; Frailis, Marco/0000-0002-7400-2135
FU NASA and DOE in the United States; CEA/Irfu and IN2P3/CNRS in France;
ASI and INFN in Italy; MEXT; KEK; JAXA in Japan; K.A. Wallenberg
Foundation; Swedish Research Council; National Space Board in Sweden;
CNES in France
FX The Fermi LAT Collaboration acknowledges support from a number of
agencies and institutes for both development and the operation of the
LAT as well as scientific data analysis. These include NASA and DOE in
the United States, CEA/Irfu and IN2P3/CNRS in France, ASI and INFN in
Italy, MEXT, KEK, and JAXA in Japan, and the K.A. Wallenberg Foundation,
the Swedish Research Council, and the National Space Board in Sweden.
Additional support from INAF in Italy and CNES in France for science
analysis during the operations phase is also gratefully acknowledged.
NR 43
TC 102
Z9 102
U1 0
U2 8
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 2010
VL 710
IS 1
BP L92
EP L97
DI 10.1088/2041-8205/710/1/L92
PG 6
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 554MI
UT WOS:000274438700020
ER
PT J
AU Liu, Y
Davies, JA
Luhmann, JG
Vourlidas, A
Bale, SD
Lin, RP
AF Liu, Ying
Davies, Jackie A.
Luhmann, Janet G.
Vourlidas, Angelos
Bale, Stuart D.
Lin, Robert P.
TI GEOMETRIC TRIANGULATION OF IMAGING OBSERVATIONS TO TRACK CORONAL MASS
EJECTIONS CONTINUOUSLY OUT TO 1 AU
SO ASTROPHYSICAL JOURNAL LETTERS
LA English
DT Article
DE solar-terrestrial relations; solar wind; Sun: coronal mass ejections
(CMEs)
ID EARTH; HELIOSPHERE; BRIGHTNESS; SECCHI; CME; SUN
AB We describe a geometric triangulation technique, based on time-elongation maps constructed from imaging observations, to track coronal mass ejections (CMEs) continuously in the heliosphere and predict their impact on the Earth. Taking advantage of stereoscopic imaging observations from the Solar Terrestrial Relations Observatory, this technique can determine the propagation direction and radial distance of CMEs from their birth in the Corona all the way to 1 AU. The efficacy of the method is demonstrated by its application to the 2008 December 12 CME, which manifests as a magnetic cloud (MC) from in situ measurements at the Earth. The predicted arrival time and radial velocity at the Earth are well confirmed by the in situ observations around the MC. Our method reveals non-radial motions and velocity changes of the CME over large distances in the heliosphere. It also associates the flux-rope structure measured in situ with the dark cavity of the CME in imaging observations. Implementation of the technique, which is expected to be a routine possibility in the future, may indicate a substantial advance in CME studies as well as space weather forecasting.
C1 [Liu, Ying; Luhmann, Janet G.; Bale, Stuart D.; Lin, Robert P.] Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA.
[Davies, Jackie A.] Rutherford Appleton Lab, Space Sci & Technol Dept, Didcot OX11 0QX, Oxon, England.
[Vourlidas, Angelos] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Lin, Robert P.] Kyung Hee Univ, Sch Space Res, Yongin 446701, Gyeonggi, South Korea.
RP Liu, Y (reprint author), Univ Calif Berkeley, Space Sci Lab, Berkeley, CA 94720 USA.
EM liuxying@ssl.berkeley.edu
RI Vourlidas, Angelos/C-8231-2009; Bale, Stuart/E-7533-2011;
OI Vourlidas, Angelos/0000-0002-8164-5948; Bale,
Stuart/0000-0002-1989-3596; Liu, Ying/0000-0002-3483-5909
FU STEREO [NAS5-03131]; NRL; LMSAL; GSFC (US); RAL; University of
Birmingham (UK); MPI (Germany); CSL (Belgium); IOTA and IAS (France);
KMEST [R31-10016]
FX The research was supported by the STEREO project under grant NAS5-03131.
SECCHI was developed by a consortium of NRL, LMSAL and GSFC (US), RAL
and the University of Birmingham (UK), MPI (Germany), CSL (Belgium), and
IOTA and IAS (France). We acknowledge the use of WIND data. R. Lin has
been supported in part by the WCU grant (No. R31-10016) funded by KMEST.
NR 25
TC 97
Z9 99
U1 0
U2 7
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
J9 ASTROPHYS J LETT
JI Astrophys. J. Lett.
PD FEB 10
PY 2010
VL 710
IS 1
BP L82
EP L87
DI 10.1088/2041-8205/710/1/L82
PG 6
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 554MI
UT WOS:000274438700018
ER
PT J
AU Rieck, DC
Liu, BW
Park, BJ
Moffett, DF
Kidwell, DA
Cheng, GJ
Van Wie, BJ
AF Rieck, Daniel C.
Liu, Bingwen
Park, Bong-Jae
Moffett, David F.
Kidwell, David A.
Cheng, Gary J.
Van Wie, Bernard J.
TI Functionalization of micro- and nano-apertures with chromate-selective
solvent polymeric membrane
SO ANALYTICA CHIMICA ACTA
LA English
DT Article
DE Ion selective electrodes; Nanosensors; Microsensors; Chromate;
Aliquat336; Microelectromechanical systems
ID POTENTIOMETRIC SENSORS; DETECTION LIMIT; ION SENSORS; MICROFLUIDIC CHIP;
ACCESS RESISTANCE; ELECTRODES; MICROELECTRODES; PVC; PROTEINS; PORE
AB A new miniaturization approach to create micro- and nanoscale ion selective electrodes (ISEs) was demonstrated and the concept tested with an environmentally relevant chromate-selective membrane consisting of 7.7:62.2:31.1 wt % Aliquat336:2-NPOE:PVC. Apertures of 100 nM and 30 mu M dimensions were made using MEMS fabrication techniques and functionalized through a macroscale application of solvent polymeric membrane. Performance studies for the microscale ISE showed a response slope of -58.6 +/- 5.6 mV decade(-1) and limit of detection (LOD) of 2.1 x 10(-5) +/- 1.1 x 10(-5) M, versus -65.2 +/- 4.2 mV decade(-1) and 1.8 x 10(-5) +/- 6 x 10(-6) M for the nanoscale ISE. This was consistent with control studies with carefully conditioned coated wire electrodes, which demonstrated a response slope of -61.7 +/- 2.4 mV decade(-1) and a LOD of 3.0 x 10(-6) +/- 1 x 10(-6) M. Response times for the best micro- and nanoscale ISEs were in the 10-20 s timeframe. Electrical resistance measurements were in the G Omega range for the microscale ISEs and nanoscale ISEs. Appropriate ISE geometry was confirmed through AFM measurements and calculations based on electrical properties for micro- and nanoscale apertures. These micro- and nanoscale ISEs are expected to have significant impact in the field of microscale analytical processes. (C) 2009 Elsevier B.V. All rights reserved.
C1 [Rieck, Daniel C.; Liu, Bingwen; Park, Bong-Jae; Van Wie, Bernard J.] Washington State Univ, Sch Chem Engn & Bioengn, Pullman, WA 99164 USA.
[Moffett, David F.] Washington State Univ, Sch Biol Sci, Pullman, WA 99164 USA.
[Kidwell, David A.] USN, Res Lab, Washington, DC 20375 USA.
[Cheng, Gary J.] Purdue Univ, Sch Ind Engn, W Lafayette, IN 47906 USA.
RP Van Wie, BJ (reprint author), Washington State Univ, Sch Chem Engn & Bioengn, Pullman, WA 99164 USA.
EM bvanwie@che.wsu.edu
RI Liu, Bingwen/I-6226-2013
OI Liu, Bingwen/0000-0002-0092-6685
FU National Science Foundation [BES-0508521]; NIH [5T32-GM008336-16]
FX We gratefully acknowledge research support from the National Science
Foundation Grant BES-0508521, the NIH Biotechnology Training Grant NIH
5T32-GM008336-16 for graduate student training support, the Technical
Support Working Group Contract T-242A for initiation of the sensor work,
and the Washington State University Gene & Linda Voiland School of
Chemical Engineering and Bioengineering for supplemental support and for
a graduate Student and supplies. We thank Hajime Fuchida for improving
our reference electrode fabrication protocol.
NR 43
TC 2
Z9 2
U1 0
U2 9
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0003-2670
J9 ANAL CHIM ACTA
JI Anal. Chim. Acta
PD FEB 5
PY 2010
VL 659
IS 1-2
BP 243
EP 250
DI 10.1016/j.aca.2009.11.030
PG 8
WC Chemistry, Analytical
SC Chemistry
GA 549KH
UT WOS:000274046900032
PM 20103131
ER
PT J
AU Huba, JD
Joyce, G
Krall, J
Siefring, CL
Bernhardt, PA
AF Huba, J. D.
Joyce, G.
Krall, J.
Siefring, C. L.
Bernhardt, P. A.
TI Self-consistent modeling of equatorial dawn density depletions with
SAMI3
SO GEOPHYSICAL RESEARCH LETTERS
LA English
DT Article
ID ATMOSPHERE; IONOSPHERE; SATELLITE
AB Large-scale, dawn density depletions in the equatorial ionosphere have been observed by instruments on the STPSat1 and CHAMP satellites. The Naval Research Laboratory (NRL) ionosphere model SAMI3 (Sami3 is Also a Model of the Ionosphere) is used to study this new phenomenon using a self-consistent electric field. Two empirical Horizontal Wind Models (HWM) are used in the simulation study: HWM93 and HWM07. Dawn density depletions are found using HWM07 but not with HWM93. The cause of the depletions is a post-midnight enhancement of the eastward electric field that generates an upward plasma drift. This drift lifts low density plasma to high altitudes (i.e., similar to 600 km). We compare our model results to remote sensing data and to in situ satellite data. Citation: Huba, J.D., G. Joyce, J. Krall, C. L. Siefring, and P. A. Bernhardt (2010), Self-consistent modeling of equatorial dawn density depletions with SAMI3, Geophys. Res. Lett., 37, L03104, doi:10.1029/2009GL041492.
C1 [Huba, J. D.; Krall, J.; Siefring, C. L.; Bernhardt, P. A.] USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
[Joyce, G.] Icarus Res Inc, Bethesda, MD 20814 USA.
RP Huba, JD (reprint author), USN, Res Lab, Div Plasma Phys, Code 6790,4555 Overlook Ave, Washington, DC 20375 USA.
EM huba@ppd.nrl.navy.mil
FU NASA; ONR
FX We thank S.L. Ossakow for a critical reading of the manuscript. This
research has been supported by NASA and ONR.
NR 13
TC 21
Z9 21
U1 0
U2 2
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 5
PY 2010
VL 37
AR L03104
DI 10.1029/2009GL041492
PG 5
WC Geosciences, Multidisciplinary
SC Geology
GA 553HD
UT WOS:000274356200002
ER
PT J
AU So, E
Demirel, MC
Wahl, KJ
AF So, Eric
Demirel, Melik C.
Wahl, Kathryn J.
TI Mechanical anisotropy of nanostructured parylene films during sliding
contact
SO JOURNAL OF PHYSICS D-APPLIED PHYSICS
LA English
DT Article
ID FRICTION-ANISOTROPY; THIN-FILMS; DIAMOND SURFACES; VAPOR-DEPOSITION;
MOLECULAR-DYNAMICS; SI SPRINGS; MONOLAYER; MICROTRIBOLOGY; NANOSPRINGS;
ASYMMETRY
AB Microscale sliding friction experiments were performed on nanostructured poly-chloro-p-xylylene (PPX-Cl, a.k.a, parylene) films. Oblique-angle vapour-phase deposition resulted in nanostructured columnar films tilted 57 degrees-63 degrees. relative to the surface. The mechanical response to sliding was studied relative to the film structural anisotropy by examining contact friction and deformation in three sliding orientations: 'with', 'against' and 'perpendicular' to the tilt axis of the columns. Friction coefficients were uniformly high (0.5-1.5) for all orientations. Neither frictional anisotropy nor depth hysteresis was observed for sliding perpendicular to the column tilt axis. However, sliding 'with' and 'against' the column tilt axis resulted in measurable friction anisotropy as well as depth hysteresis, with larger contact depths and higher friction coefficients for sliding 'with' the column tilt. In comparison, planar films did not exhibit either frictional anisotropy or depth hysteresis. The depth hysteresis during sliding parallel to the tilt axis is attributed to the lateral force contribution to the total contact loading. Contacts formed when the sliding orientation was perpendicular to the column tilt axis were nominally Hertzian, allowing estimation of elastic moduli of the films from the load-displacement data during sliding. These films may have applications in the area of tissue engineering for directional cell sheet growth, MEMS developments for directional microfluidic pumps and sensors for deformation induced detection.
C1 [So, Eric; Wahl, Kathryn J.] USN, Res Lab, Div Chem, Washington, DC 20375 USA.
[So, Eric; Demirel, Melik C.] Penn State Univ, Mat Res Inst, University Pk, PA 16802 USA.
RP So, E (reprint author), USN, Res Lab, Div Chem, Code 6176, Washington, DC 20375 USA.
EM kathryn.wahl@nrl.navy.mil
RI Demirel, Melik/E-4495-2010; Demirel, Melik/E-3775-2016;
OI Wahl, Kathryn/0000-0001-8163-6964
NR 46
TC 21
Z9 21
U1 0
U2 8
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 0022-3727
J9 J PHYS D APPL PHYS
JI J. Phys. D-Appl. Phys.
PD FEB 3
PY 2010
VL 43
IS 4
AR 045403
DI 10.1088/0022-3727/43/4/045403
PG 10
WC Physics, Applied
SC Physics
GA 543DT
UT WOS:000273551300015
ER
PT J
AU Metzgar, D
Myers, CA
Russell, KL
Faix, D
Blair, PJ
Brown, J
Vo, S
Swayne, DE
Thomas, C
Stenger, DA
Lin, B
Malanoski, AP
Wang, Z
Blaney, KM
Long, NC
Schnur, JM
Saad, MD
Borsuk, LA
Lichanska, AM
Lorence, MC
Weslowski, B
Schafer, KO
Tibbetts, C
AF Metzgar, David
Myers, Christopher A.
Russell, Kevin L.
Faix, Dennis
Blair, Patrick J.
Brown, Jason
Vo, Scott
Swayne, David E.
Thomas, Colleen
Stenger, David A.
Lin, Baochuan
Malanoski, Anthony P.
Wang, Zheng
Blaney, Kate M.
Long, Nina C.
Schnur, Joel M.
Saad, Magdi D.
Borsuk, Lisa A.
Lichanska, Agnieszka M.
Lorence, Matthew C.
Weslowski, Brian
Schafer, Klaus O.
Tibbetts, Clark
TI Single Assay for Simultaneous Detection and Differential Identification
of Human and Avian Influenza Virus Types, Subtypes, and Emergent
Variants
SO PLOS ONE
LA English
DT Article
ID RESEQUENCING DNA MICROARRAYS; PATHOGEN IDENTIFICATION; BACTERIAL
PNEUMONIA; PANDEMIC INFLUENZA; BROAD-SPECTRUM; HEMAGGLUTININ;
SURVEILLANCE; TOOL
AB For more than four decades the cause of most type A influenza virus infections of humans has been attributed to only two viral subtypes, A/H1N1 or A/H3N2. In contrast, avian and other vertebrate species are a reservoir of type A influenza virus genome diversity, hosting strains representing at least 120 of 144 combinations of 16 viral hemagglutinin and 9 viral neuraminidase subtypes. Viral genome segment reassortments and mutations emerging within this reservoir may spawn new influenza virus strains as imminent epidemic or pandemic threats to human health and poultry production. Traditional methods to detect and differentiate influenza virus subtypes are either time-consuming and labor-intensive (culture-based) or remarkably insensitive (antibody-based). Molecular diagnostic assays based upon reverse transcriptase-polymerase chain reaction (RT-PCR) have short assay cycle time, and high analytical sensitivity and specificity. However, none of these diagnostic tests determine viral gene nucleotide sequences to distinguish strains and variants of a detected pathogen from one specimen to the next. Decision-quality, strain-and variant-specific pathogen gene sequence information may be critical for public health, infection control, surveillance, epidemiology, or medical/veterinary treatment planning. The Resequencing Pathogen Microarray (RPM-Flu) is a robust, highly multiplexed and target gene sequencing-based alternative to both traditional culture-or biomarker-based diagnostic tests. RPM-Flu is a single, simultaneous differential diagnostic assay for all subtype combinations of type A influenza viruses and for 30 other viral and bacterial pathogens that may cause influenza-like illness. These other pathogen targets of RPM-Flu may co-infect and compound the morbidity and/or mortality of patients with influenza. The informative specificity of a single RPM-Flu test represents specimen-specific viral gene sequences as determinants of virus type, A/HN subtype, virulence, host-range, and resistance to antiviral agents.
C1 [Metzgar, David; Myers, Christopher A.; Russell, Kevin L.; Faix, Dennis; Blair, Patrick J.; Brown, Jason; Vo, Scott] USN, Dept Resp Dis Res, Hlth Res Ctr, San Diego, CA 92152 USA.
[Russell, Kevin L.] US Dept Def Global Emerging Infect Surveillance &, Div Armed Forces Hlth Surveillance Ctr, Silver Spring, MD USA.
[Swayne, David E.; Thomas, Colleen; Blaney, Kate M.] ARS, SE Poultry Res Lab, USDA, Athens, GA USA.
[Stenger, David A.; Lin, Baochuan; Malanoski, Anthony P.; Wang, Zheng; Long, Nina C.; Schnur, Joel M.] USN, Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 USA.
[Schnur, Joel M.] George Mason Univ, Manassas, VA USA.
[Saad, Magdi D.] Naval Med Res Unit 3, Cairo, Egypt.
[Borsuk, Lisa A.; Lichanska, Agnieszka M.; Lorence, Matthew C.; Weslowski, Brian; Schafer, Klaus O.; Tibbetts, Clark] TessArae LLC, Potomac Falls, VA USA.
RP Metzgar, D (reprint author), USN, Dept Resp Dis Res, Hlth Res Ctr, San Diego, CA 92152 USA.
EM clark.tibbetts@tessarae.com
RI Malanoski, Anthony/C-7814-2011; Saad, Magdi/H-5561-2013; Valle,
Ruben/A-7512-2013; Lin, Baochuan/A-8390-2009
OI Malanoski, Anthony/0000-0001-6192-888X; Saad, Magdi/0000-0003-2111-8115;
Lin, Baochuan/0000-0002-9484-0785
FU TessArae [NCRADA-NRL-06-406]; United States Navy to TessArae
[N00244-07-C-0037]; Department of Defense; Division of the Armed Forces
Health Surveillance Center, Silver Spring, Maryland
FX No grant funding supported this effort. TessArae and the Naval Research
Laboratory worked together under a Cooperative Research and Development
Agreement (NCRADA-NRL-06-406), with financial resources contributed from
TessArae. TessArae and the Naval Health Research Center worked together
under a research services contract (N00244-07-C-0037) from the United
States Navy to TessArae. Partial funding for this respiratory disease
surveillance initiative was provided by the Department of Defense,
Global Emerging Infections Surveillance and Response System (GEIS), a
Division of the Armed Forces Health Surveillance Center, Silver Spring,
Maryland. TessArae and the Department of Agriculture, Agricultural
Research Service, Southeast Poultry Research Laboratory (SEPRL)
cooperated under a no-cost cooperative agreement under which SEPRL
provided samples (as their respective costs assumed) for testing and
TessArae performed the testing (as their respective costs assumed). The
funders had no role in study design, data collection and analysis,
decision to publish, or preparation of the manuscript.
NR 27
TC 22
Z9 28
U1 2
U2 8
PU PUBLIC LIBRARY SCIENCE
PI SAN FRANCISCO
PA 185 BERRY ST, STE 1300, SAN FRANCISCO, CA 94107 USA
SN 1932-6203
J9 PLOS ONE
JI PLoS One
PD FEB 3
PY 2010
VL 5
IS 2
AR e8995
DI 10.1371/journal.pone.0008995
PG 18
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 554ZA
UT WOS:000274474200003
PM 20140251
ER
PT J
AU Nalbantoglu, U
Sayood, K
Dempsey, MP
Iwen, PC
Francesconi, SC
Barabote, RD
Xie, G
Brettin, TS
Hinrichs, SH
Fey, PD
AF Nalbantoglu, Ufuk
Sayood, Khalid
Dempsey, Michael P.
Iwen, Peter C.
Francesconi, Stephen C.
Barabote, Ravi D.
Xie, Gary
Brettin, Thomas S.
Hinrichs, Steven H.
Fey, Paul D.
TI Large Direct Repeats Flank Genomic Rearrangements between a New Clinical
Isolate of Francisella tularensis subsp tularensis A1 and Schu S4
SO PLOS ONE
LA English
DT Article
ID UNITED-STATES; POPULATION-STRUCTURE; MOLECULAR ANALYSIS; IDENTIFICATION;
TULAREMIA; SEQUENCE; STRAIN
AB Francisella tularensis subspecies tularensis consists of two separate populations A1 and A2. This report describes the complete genome sequence of NE061598, an F. tularensis subspecies tularensis A1 isolated in 1998 from a human with clinical disease in Nebraska, United States of America. The genome sequence was compared to Schu S4, an F. tularensis subspecies tularensis A1a strain originally isolated in Ohio in 1941. It was determined that there were 25 nucleotide polymorphisms (22 SNPs and 3 indels) between Schu S4 and NE061598; two of these polymorphisms were in potential virulence loci. Pulsed-field gel electrophoresis analysis demonstrated that NE061598 was an A1a genotype. Other differences included repeat sequences (n = 11 separate loci), four of which were contained in coding sequences, and an inversion and rearrangement probably mediated by insertion sequences and the previously identified direct repeats I, II, and III. Five new variable-number tandem repeats were identified; three of these five were unique in NE061598 compared to Schu S4. Importantly, there was no gene loss or gain identified between NE061598 and Schu S4. Interpretation of these data suggests there is significant sequence conservation and chromosomal synteny within the A1 population. Further studies are needed to determine the biological properties driving the selective pressure that maintains the chromosomal structure of this monomorphic pathogen.
C1 [Nalbantoglu, Ufuk; Sayood, Khalid] Univ Nebraska, Dept Elect Engn, Lincoln, NE 68588 USA.
[Iwen, Peter C.; Hinrichs, Steven H.; Fey, Paul D.] Univ Nebraska Med Ctr, Dept Pathol & Microbiol, Omaha, NE USA.
[Barabote, Ravi D.; Xie, Gary] Los Alamos Natl Lab, Biosci Div, Los Alamos, NM USA.
[Barabote, Ravi D.; Xie, Gary] DOE Joint Genome Inst, Walnut Creek, CA USA.
[Dempsey, Michael P.] Armed Forces Inst Pathol, Div Microbiol, Washington, DC 20306 USA.
[Francesconi, Stephen C.] USN, Med Res Ctr, Silver Spring, MD USA.
[Brettin, Thomas S.] Oak Ridge Natl Lab, Oak Ridge, TN USA.
RP Nalbantoglu, U (reprint author), Univ Nebraska, Dept Elect Engn, Lincoln, NE 68588 USA.
EM pfey@unmc.edu
RI Barabote, Ravi/B-8727-2011; Barabote, Ravi/C-1299-2017;
OI Barabote, Ravi/0000-0002-0403-246X; xie, gary/0000-0002-9176-924X
FU Department of Defense, Defense Advanced Research Program Agency
[W911NF0510275]
FX This work was supported by a grant from the Department of Defense,
Defense Advanced Research Program Agency ( award W911NF0510275) to S. H.
H. The opinions expressed in this manuscript are the private views of
the authors and are not the official views of the Armed Forces Institute
of Pathology, the Department of the Army, the United States Air Force,
or the Department of Defense. The funders had no role in study design,
data collection and analysis, decision to publish, or preparation of the
manuscript.
NR 18
TC 11
Z9 11
U1 1
U2 8
PU PUBLIC LIBRARY SCIENCE
PI SAN FRANCISCO
PA 185 BERRY ST, STE 1300, SAN FRANCISCO, CA 94107 USA
SN 1932-6203
J9 PLOS ONE
JI PLoS One
PD FEB 3
PY 2010
VL 5
IS 2
AR e9007
DI 10.1371/journal.pone.0009007
PG 7
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 554ZA
UT WOS:000274474200008
PM 20140244
ER
PT J
AU Caldwell, JD
Anderson, TJ
Culbertson, JC
Jernigan, GG
Hobart, KD
Kub, FJ
Tadjer, MJ
Tedesco, JL
Hite, JK
Mastro, MA
Myers-Ward, RL
Eddy, CR
Campbell, PM
Gaskill, DK
AF Caldwell, Joshua D.
Anderson, Travis J.
Culbertson, James C.
Jernigan, Glenn G.
Hobart, Karl D.
Kub, Fritz J.
Tadjer, Marko J.
Tedesco, Joseph L.
Hite, Jennifer K.
Mastro, Michael A.
Myers-Ward, Rachael L.
Eddy, Charles R., Jr.
Campbell, Paul M.
Gaskill, D. Kurt
TI Technique for the Dry Transfer of Epitaxial Graphene onto Arbitrary
Substrates
SO ACS NANO
LA English
DT Article
DE epitaxial graphene; transfer; silicon intercalation; Hall effect;
transparent contact; SiC
ID HETEROEPITAXIAL GRAPHITE; LARGE-AREA; FILMS; PERFORMANCE; DEPOSITION;
GROWTH; SIO2
AB To make graphene technologically viable, the transfer of graphene films to substrates appropriate for specific applications is required. We demonstrate the dry transfer of epitaxial graphene (EG) from the C-face of 4H-SiC onto SiO(2), GaN and Al(2)O(3) substrates using a thermal release tape. Subsequent Hall effect measurements illustrated that minimal degradation in the carrier mobility was induced following the transfer process in lithographically patterned devices. Correspondingly, a large drop in the carrier concentration was observed following the transfer process, supporting the notion that a gradient in the carrier density is present in C-face EG, with lower values being observed in layers further removed from the SiC interface. X-ray photoemission spectra collected from EG films attached to the transfer tape revealed the presence of atomic Si within the EG layers, which may indicate the identity of the unknown intrinsic dopant in EG. Finally, this transfer process is shown to enable EG films amenable for use in device fabrication on arbitrary substrates and films that are deemed most beneficial to carrier transport, as flexible electronic devices or optically transparent contacts.
C1 [Caldwell, Joshua D.; Anderson, Travis J.; Culbertson, James C.; Jernigan, Glenn G.; Hobart, Karl D.; Kub, Fritz J.; Tadjer, Marko J.; Tedesco, Joseph L.; Hite, Jennifer K.; Mastro, Michael A.; Myers-Ward, Rachael L.; Eddy, Charles R., Jr.; Campbell, Paul M.; Gaskill, D. Kurt] USN, Res Lab, Washington, DC 20375 USA.
[Caldwell, Joshua D.; Anderson, Travis J.; Culbertson, James C.; Jernigan, Glenn G.; Hobart, Karl D.; Kub, Fritz J.; Tadjer, Marko J.; Tedesco, Joseph L.; Hite, Jennifer K.; Mastro, Michael A.; Myers-Ward, Rachael L.; Eddy, Charles R., Jr.; Campbell, Paul M.; Gaskill, D. Kurt] Univ Maryland, Dept Elect Engn, College Pk, MD 20742 USA.
RP Caldwell, JD (reprint author), USN, Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM Joshua.caldwell@nrl.navy.mil
RI Caldwell, Joshua/B-3253-2008; Hite, Jennifer/L-5637-2015
OI Caldwell, Joshua/0000-0003-0374-2168; Hite, Jennifer/0000-0002-4090-0826
FU Office of Naval Research; ASEE
FX We would like to thank Nitto Denko America (Fremont, CA), Electronics
Process Material Group (system.nda@nitto.com) for providing the thermal
release tape and expertise in the associated transfer and cleaning
processes. Artwork for the table of contents figures was provided by M.
Kraus (www.mammalcreative.com). The authors also express their
appreciation to S. Binari for the use of his Hall effect measurement
system and Je. Robinson and Jo. Robinson for helpful discussions. This
work was supported in part by the Office of Naval Research. Support for
J.L. Tedesco and J.K. Hite was provided by the ASEE.
NR 32
TC 96
Z9 97
U1 22
U2 172
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1936-0851
J9 ACS NANO
JI ACS Nano
PD FEB
PY 2010
VL 4
IS 2
BP 1108
EP 1114
DI 10.1021/nn901585p
PG 7
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 556ZI
UT WOS:000274635800066
PM 20099904
ER
PT J
AU Pande, CS
McFadden, GB
AF Pande, C. S.
McFadden, G. B.
TI Self-similar grain size distribution in three dimensions: A stochastic
treatment
SO ACTA MATERIALIA
LA English
DT Article
DE Grain growth; Modelling; Theory
ID GROWTH; BOUNDARIES; SIMULATION; EVOLUTION; MODEL
AB In this paper, a stochastic formulation of three-dimensional grain growth is presented. This formulation employs the recent extension of the von Neumann law to three dimensions, and leads to a Fokker-Planck equation for the size distribution. The self-similar solutions of the Fokker-Planck equation presented here are based on the assumption of quasi-stationary distributions reached in the long time limit. The resulting grain size distributions, obtained both numerically and analytically, are shown to be in good agreement with each other and also with those obtained from computer simulations, indicating the validity of the stochastic approach. Published by Elsevier Ltd. on behalf of Acta Materialia, Inc.
C1 [McFadden, G. B.] Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA.
[Pande, C. S.] USN, Res Lab, Washington, DC 20375 USA.
RP McFadden, GB (reprint author), Natl Inst Stand & Technol, Bldg 820,Room 365,100 Bur Dr Stop 8910, Gaithersburg, MD 20899 USA.
EM mcfadden@nist.gov
RI McFadden, Geoffrey/A-7920-2008
OI McFadden, Geoffrey/0000-0001-6723-2103
FU Office of Naval Research
FX This work is supported in part by the Office of Naval Research.
NR 31
TC 8
Z9 8
U1 1
U2 9
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 FEB
PY 2010
VL 58
IS 3
BP 1037
EP 1044
DI 10.1016/j.actamat.2009.10.020
PG 8
WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical
Engineering
SC Materials Science; Metallurgy & Metallurgical Engineering
GA 558SH
UT WOS:000274765600030
ER
PT J
AU Felker, CC
AF Felker, Craig C.
TI From Hot War to Cold The US Navy and National Security Affiars.
1945-1955
SO AMERICAN HISTORICAL REVIEW
LA English
DT Book Review
C1 [Felker, Craig C.] USN Acad, Annapolis, MD USA.
RP Felker, CC (reprint author), USN Acad, Annapolis, MD USA.
NR 1
TC 0
Z9 0
U1 0
U2 0
PU UNIV CHICAGO PRESS
PI CHICAGO
PA 1427 E 60TH ST, CHICAGO, IL 60637-2954 USA
SN 0002-8762
J9 AM HIST REV
JI Am. Hist. Rev.
PD FEB
PY 2010
VL 115
IS 1
BP 249
EP 250
PG 2
WC History
SC History
GA 560UY
UT WOS:000274930200093
ER
PT J
AU Brennan, T
AF Brennan, Thomas
TI Enlightened Feudalism. Seigneurial Justice and Village Society in
Eighteenth-Century Northern Burgundy.
SO AMERICAN HISTORICAL REVIEW
LA English
DT Book Review
C1 [Brennan, Thomas] USN Acad, Annapolis, MD 21402 USA.
RP Brennan, T (reprint author), USN Acad, Annapolis, MD 21402 USA.
NR 1
TC 0
Z9 0
U1 0
U2 0
PU UNIV CHICAGO PRESS
PI CHICAGO
PA 1427 E 60TH ST, CHICAGO, IL 60637-2954 USA
SN 0002-8762
J9 AM HIST REV
JI Am. Hist. Rev.
PD FEB
PY 2010
VL 115
IS 1
BP 300
EP 301
PG 2
WC History
SC History
GA 560UY
UT WOS:000274930200150
ER
PT J
AU Lockhart, J
AF Lockhart, Jody
TI Counting Good Bit String Arc Diagrams
SO AMERICAN MATHEMATICAL MONTHLY
LA English
DT Letter
C1 US Naval Acad, Annapolis, MD USA.
RP Lockhart, J (reprint author), US Naval Acad, Annapolis, MD USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU MATHEMATICAL ASSOC AMER
PI WASHINGTON
PA 1529 18TH STREET NW, WASHINGTON, DC 20036 USA
SN 0002-9890
EI 1930-0972
J9 AM MATH MON
JI Am. Math. Mon.
PD FEB
PY 2010
VL 117
IS 2
BP 187
EP 187
PG 1
WC Mathematics
SC Mathematics
GA 748HU
UT WOS:000289382500013
ER
PT J
AU Gist, RS
Miller, DW
Warren, T
AF Gist, Richard S.
Miller, David W.
Warren, Ty
TI A Difficult Airway in a Patient with Nephrogenic Sclerosing Fibrosis
SO ANESTHESIA AND ANALGESIA
LA English
DT Article
ID RENAL-DIALYSIS PATIENTS; SYSTEMIC FIBROSIS; DERMOPATHY
AB Nephrogenic sclerosing fibrosis (dermopathy) is a relatively rare complication of long-term renal dialysis. The syndrome includes marked thickening of the skin and diffuse fibrosis of fascia, muscle, heart, and lungs, leading to contractures of the joints and limbs and cardiopulmonary compromise. We present the case of a 29-year-old woman who required emergent intubation because of respiratory compromise, and who had had normal airway examinations and intubations before the onset of nephrogenic sclerosing fibrosis symptoms. (Anesth Analg 2010;110:555-7)
C1 [Gist, Richard S.] Naval Med Ctr Portsmouth, Sect Crit Care Med, Dept Anesthesiol, Portsmouth, VA 23708 USA.
[Miller, David W.; Warren, Ty] Univ Alabama, Sch Med, Dept Anesthesiol, Sect Crit Care Med, Birmingham, AL USA.
RP Gist, RS (reprint author), Naval Med Ctr Portsmouth, Sect Crit Care Med, Dept Anesthesiol, 620 John Paul Jones Circle, Portsmouth, VA 23708 USA.
EM richard.gist@med.navy.mil
NR 12
TC 0
Z9 0
U1 0
U2 0
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0003-2999
J9 ANESTH ANALG
JI Anesth. Analg.
PD FEB
PY 2010
VL 110
IS 2
BP 555
EP 557
DI 10.1213/ANE.0b013e3181c8b09f
PG 3
WC Anesthesiology
SC Anesthesiology
GA 547XC
UT WOS:000273922100047
PM 20081138
ER
PT J
AU Hanling, SR
Wallace, SC
Hollenbeck, KJ
Belnap, BD
Tulis, MR
AF Hanling, Steven R.
Wallace, Scott C.
Hollenbeck, Kerry J.
Belnap, Brian D.
Tulis, Matthew R.
TI Preamputation Mirror Therapy May Prevent Development of Phantom Limb
Pain: A Case Series
SO ANESTHESIA AND ANALGESIA
LA English
DT Article
ID CORTICAL REORGANIZATION
AB We report the cases of 4 patients who performed daily mirror therapy for 2 wk before undergoing elective limb amputation. One patient experienced no phantom limb pain (PLP). Two patients experienced rare episodes of mild PLP without effect on their participation in physical therapy (PT) or their quality of life. One patient reported daily, brief episodes of moderate PLP without effect on his participation in PT or his stated quality of life. These results indicate that preoperative mirror therapy may improve postamputation PT compliance and decrease the incidence of PLP. Future prospective studies are needed to confirm the results of this case series. (Anesth Analg 2010;110:611-4)
C1 [Hanling, Steven R.; Wallace, Scott C.; Hollenbeck, Kerry J.; Belnap, Brian D.; Tulis, Matthew R.] USN, San Diego Med Ctr, Dept Anesthesiol, San Diego, CA 92134 USA.
RP Hanling, SR (reprint author), USN, San Diego Med Ctr, Dept Anesthesiol, 34800 Bob Wilson Dr, San Diego, CA 92134 USA.
EM steven.hanling@med.navy.mil
NR 13
TC 13
Z9 16
U1 1
U2 16
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0003-2999
J9 ANESTH ANALG
JI Anesth. Analg.
PD FEB
PY 2010
VL 110
IS 2
BP 611
EP 614
DI 10.1213/ANE.0b013e3181b845b0
PG 4
WC Anesthesiology
SC Anesthesiology
GA 547XC
UT WOS:000273922100057
PM 19917622
ER
PT J
AU Moore, M
Tucker, M
Grier, T
Quinn, J
AF Moore, Meredith
Tucker, Mark
Grier, Tom
Quinn, James
TI Effects of summer mailing on in vivo and in vitro relative potencies of
standardized timothy grass extract
SO ANNALS OF ALLERGY ASTHMA & IMMUNOLOGY
LA English
DT Article
ID PRACTICE PARAMETER; ALLERGEN EXTRACTS; POLLEN ALLERGENS; RAGWEED POLLEN;
IMMUNOTHERAPY; STABILITY; PRESERVATIVES; STORAGE
AB Background: Allergen extracts can degrade when exposed to temperatures significantly beyond the optimum storage recommendation of 4 C. Many allergen extracts are mailed to their final destinations throughout the year with exposure to varied environmental conditions.
Objective: To evaluate the effect of summer mailing on the in vitro and in vivo potency of timothy grass extract.
Methods: Standardized timothy grass extracts, 10,000 and 100,000 BAU/mL, were mailed round-trip between San Antonio, Texas, and Phoenix, Arizona, during August 2007. In-transit temperatures were recorded using a portable temperature logger. After mailing of the extracts, we performed quantitative in vitro enzyme-linked immunosorbent assay inhibition and in vivo ID50EAL (Intradermal Dilution for 50-mm Sum of Erythema Determines Bioequivalent Allergy Units) analysis.
Results: Measured extract exposure temperatures were greater than 20 degrees C for 11 days and 30 degrees C for 6 hours during standard mailing in weather temperatures exceeding 38 degrees C. Enzyme-linked immunosorbent assay inhibition results for the 100,000-and 10,000-BAU/mL control samples were 97,900 and 10,580 BAU/mL, respectively, and for the mailed extracts were 96,800 and 7,830 BAU/mL, respectively. These measurements fell within the current Food and Drug Administration lot release limits (67%-149%) and stability limits (50%-200%) relative to the standardized reference. The ID(50)EAL determinations of the control vs mailed extracts were 12.98 vs 12.28, 12.66 vs 12.32, and 11.97 vs 11.70 for the 3 patients. These differences were not statistically significant.
Conclusions: Mailing of timothy grass extract produced no significant reductions in in vitro relative potencies or in vivo skin test reactivity in 3 sensitive patients. Ann Allergy Asthma Immunol. 2010; 104: 147-151.
C1 [Moore, Meredith; Quinn, James] San Antonio Uniformed Serv Hlth Educ Consortium, Dept Allergy Immunol, Wilford Hall Med Ctr, Lackland AFB, TX 78236 USA.
[Tucker, Mark] USN, Med Ctr, San Diego, CA 92152 USA.
[Grier, Tom] Greer Labs, Lenoir, NC USA.
RP Moore, M (reprint author), San Antonio Uniformed Serv Hlth Educ Consortium, Dept Allergy Immunol, Wilford Hall Med Ctr, 59 MDOS SGO5A,2200 Bergquist Dr,Suite 1, Lackland AFB, TX 78236 USA.
EM meredith.moore@us.af.mil
NR 18
TC 5
Z9 5
U1 0
U2 0
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 1081-1206
J9 ANN ALLERG ASTHMA IM
JI Ann. Allergy Asthma Immunol.
PD FEB
PY 2010
VL 104
IS 2
BP 147
EP 151
DI 10.1016/j.anai.2009.11.037
PG 5
WC Allergy; Immunology
SC Allergy; Immunology
GA 701OF
UT WOS:000285828400008
PM 20306818
ER
PT J
AU Clifton, GT
Clive, K
Holmes, JP
Patil, R
Benavides, LC
Gates, JD
Mittendorf, EA
Stojadinovic, A
Ponniah, S
Peoples, GE
AF Clifton, G. T.
Clive, K.
Holmes, J. P.
Patil, R.
Benavides, L. C.
Gates, J. D.
Mittendorf, E. A.
Stojadinovic, A.
Ponniah, S.
Peoples, G. E.
TI Cumulative Findings from the E75 Peptide Vaccine Adjuvant Trials in
Breast Cancer
SO ANNALS OF SURGICAL ONCOLOGY
LA English
DT Meeting Abstract
CT 63rd Annual Cancer Symposium of the Society-of-Surgical-Oncology
CY MAR 03-07, 2010
CL St Louis, MO
SP Soc Surg Oncol
C1 [Clifton, G. T.; Clive, K.; Benavides, L. C.; Gates, J. D.; Peoples, G. E.] Brooke Army Med Ctr, Ft Sam Houston, TX 78234 USA.
[Holmes, J. P.] USN, San Diego Med Ctr, San Diego, CA 92152 USA.
[Patil, R.] Windber Med Ctr, Windber, PA USA.
[Mittendorf, E. A.] Univ Texas MD Anderson Canc Ctr, Houston, TX 77030 USA.
[Stojadinovic, A.] Walter Reed Army Med Ctr, Washington, DC USA.
[Ponniah, S.] USUHS, Canc Vaccine Dev Program, Bethesda, MD USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1068-9265
J9 ANN SURG ONCOL
JI Ann. Surg. Oncol.
PD FEB
PY 2010
VL 17
SU 1
BP S50
EP S50
PG 1
WC Oncology; Surgery
SC Oncology; Surgery
GA 560KY
UT WOS:000274902700135
ER
PT J
AU Stevens, KA
Henry, LR
Horst, LB
Solomon, NP
Coppit, G
Shriver, CD
Stojadinovic, A
AF Stevens, K. A.
Henry, L. R.
Horst, L. B.
Solomon, N. P.
Coppit, G.
Shriver, C. D.
Stojadinovic, A.
TI What is the Clinical Utility of Recurrent Laryngeal Neuromonitoring
during Thyroidectomy?
SO ANNALS OF SURGICAL ONCOLOGY
LA English
DT Meeting Abstract
CT 63rd Annual Cancer Symposium of the Society-of-Surgical-Oncology
CY MAR 03-07, 2010
CL St Louis, MO
SP Soc Surg Oncol
C1 [Stevens, K. A.] USN, Med Res Ctr, Silver Spring, MD USA.
[Henry, L. R.] Natl Naval Med Ctr, Bethesda, MD USA.
[Horst, L. B.; Solomon, N. P.; Coppit, G.; Shriver, C. D.; Stojadinovic, A.] Water Reed Army Med Ctr, Washington, DC USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1068-9265
J9 ANN SURG ONCOL
JI Ann. Surg. Oncol.
PD FEB
PY 2010
VL 17
SU 1
BP S16
EP S17
PG 2
WC Oncology; Surgery
SC Oncology; Surgery
GA 560KY
UT WOS:000274902700037
ER
PT J
AU Tanyi, JA
Krafft, SP
Ushino, T
Huston, AL
Justus, BL
AF Tanyi, James A.
Krafft, Shane P.
Ushino, Toshihide
Huston, Alan L.
Justus, Brian L.
TI Performance characteristics of a gated fiber-optic-coupled dosimeter in
high-energy pulsed photon radiation dosimetry
SO APPLIED RADIATION AND ISOTOPES
LA English
DT Article
DE Real-time dosimetry; Pulsed photon beam; Gated fiber-optics; In vivo
dosimetry
ID QUALITY-ASSURANCE; REAL-TIME; DETECTOR; RADIOTHERAPY; LUMINESCENCE;
DIODE; BEAMS
AB Fiber-optic-coupled dosimeters (FOCDs) are a new class of in vivo dosimetry systems that are finding increased clinical applications. Utility of FOCDs has been limited in dosimetric applications due Cerenkov-ray signal contamination. The current study reports on the characterization of a novel FOCD, with a gated detection system for the discrimination and effective elimination of the direct contribution of Cerenkov radiation, for use in the radiotherapeutic realm. System reproducibility, linearity and output dependence on dose rate, energy, field size, and temperature response were characterized for 6, 10, and 15 MV photon energies. The system exhibited a linear response to absorbed dose ranging from 1 to 2400 cGy and showed little dependence to dose rate variations. Overall system reproducibility was 0.52% with no field-geometry and temperature dependence. (C) 2009 Elsevier Ltd. All rights reserved.
C1 [Tanyi, James A.] Oregon Hlth & Sci Univ, Dept Radiat Med, Portland, OR 97239 USA.
[Tanyi, James A.] Oregon State Univ, Dept Nucl Engn & Radiat Hlth Phys, Corvallis, OR 97331 USA.
[Krafft, Shane P.] Univ Arizona, Dept Phys, Tucson, AZ 85721 USA.
[Ushino, Toshihide] Univ Calif Los Angeles, Off Environm Hlth & Safety, Los Angeles, CA 90095 USA.
[Huston, Alan L.; Justus, Brian L.] USN, Res Lab, Div Opt Sci, Washington, DC 20375 USA.
RP Tanyi, JA (reprint author), Oregon Hlth & Sci Univ, Dept Radiat Med, 3181 SW Sam Jackson Pk Rd,Mail Code KPV4, Portland, OR 97239 USA.
EM tanyij@ohsu.edu
OI Krafft, Shane/0000-0002-4582-8587
NR 24
TC 5
Z9 5
U1 2
U2 4
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0969-8043
J9 APPL RADIAT ISOTOPES
JI Appl. Radiat. Isot.
PD FEB
PY 2010
VL 68
IS 2
BP 364
EP 369
DI 10.1016/j.apradiso.2009.10.042
PG 6
WC Chemistry, Inorganic & Nuclear; Nuclear Science & Technology; Radiology,
Nuclear Medicine & Medical Imaging
SC Chemistry; Nuclear Science & Technology; Radiology, Nuclear Medicine &
Medical Imaging
GA 576BC
UT WOS:000276117500023
PM 19932623
ER
PT J
AU Satter, EK
White, AA
Scalise, TK
DeRienzo, DP
AF Satter, Elizabeth K.
White, Andrew A.
Scalise, Tamara K.
DeRienzo, Damian P.
TI Infantile Erythroderma
SO ARCHIVES OF DERMATOLOGY
LA English
DT Editorial Material
ID SEVERE COMBINED IMMUNODEFICIENCY
C1 [Satter, Elizabeth K.; Scalise, Tamara K.; DeRienzo, Damian P.] USN, Med Ctr, San Diego, CA 92152 USA.
[White, Andrew A.] Scripps Clin, San Diego, CA USA.
RP Satter, EK (reprint author), USN, Med Ctr, San Diego, CA 92152 USA.
NR 9
TC 0
Z9 0
U1 0
U2 1
PU AMER MEDICAL ASSOC
PI CHICAGO
PA 515 N STATE ST, CHICAGO, IL 60610-0946 USA
SN 0003-987X
J9 ARCH DERMATOL
JI Arch. Dermatol.
PD FEB
PY 2010
VL 146
IS 2
BP 191
EP +
PG 2
WC Dermatology
SC Dermatology
GA 554XE
UT WOS:000274468600014
PM 20157034
ER
PT J
AU Grumet, RC
Bach, BR
Provencher, MT
AF Grumet, Robert C.
Bach, Bernard R., Jr.
Provencher, Matthew T.
TI Arthroscopic Stabilization for First-Time Versus Recurrent Shoulder
Instability
SO ARTHROSCOPY-THE JOURNAL OF ARTHROSCOPIC AND RELATED SURGERY
LA English
DT Article
ID RANDOMIZED CLINICAL-TRIAL; TRAUMATIC ANTERIOR DISLOCATIONS; BANKART
SUTURE REPAIR; NONOPERATIVE TREATMENT; FOLLOW-UP; REHABILITATION;
IMMOBILIZATION
AB Purpose: The purpose of this study was to systematically review the evidence on the outcomes of arthroscopic repair for anterior shoulder instability in first-time dislocators when compared with patients with recurrent instability. Methods: We designed a systematic review with a specific methodology to investigate the outcomes of surgery for those with only a first-time dislocation versus those who underwent surgery after multiple instability events. We performed a literature search from January 1966 to December 2008 using Medline, CINAHL (Cumulative Index to Nursing and Allied Health Literature), and the Cochrane Central Register of Controlled Trials. Key words included the following: first time, primary shoulder, or recurrent shoulder instability, shoulder dislocation, Bankart repair, arthroscopic Bankart repair, and labral repair. The inclusion criteria were cohort studies (Level I to II) that evaluated the outcomes of patients undergoing arthroscopic stabilization after the first dislocation or multiple recurrent episodes. Studies that lacked a comparison group or were retrospective (Level III studies or higher) were excluded. Results: There were 15 studies that met the inclusion criteria and were included in the final analysis: 5 in the first-time dislocation group and 10 in the recurrent instability group. Study design, patient demographics, mean number of dislocations, surgical technique, and rehabilitation protocol, as well as subjective and objective outcome measures, were recorded. Conclusions: There were no differences in recurrence or complication rate among patients undergoing surgery after the primary dislocation when compared with those undergoing surgery after multiple recurrent episodes. Clinical outcome measures significantly improved within all independent studies from preoperatively to postoperatively. However, because of variation in the outcome measurement tools used, no direct comparison between the study groups could be performed. Additional randomized controlled studies are needed to compare the functional outcome, quality of life, and ability to return to preinjury activity level among patients undergoing early versus delayed repair for anterior shoulder instability. Level of Evidence: Level II, systematic review of Level I and II studies.
C1 [Provencher, Matthew T.] USN, San Diego Med Ctr, USUHS, Dept Orthopaed Surg, San Diego, CA 92134 USA.
[Grumet, Robert C.; Bach, Bernard R., Jr.] Rush Univ, Med Ctr, Dept Orthoped Surg, Div Sports Med, Chicago, IL 60612 USA.
RP Provencher, MT (reprint author), USN, San Diego Med Ctr, USUHS, Dept Orthopaed Surg, 34800 Bob Wilson Dr,Suite 112, San Diego, CA 92134 USA.
EM mattprovencher@earthlink.net
NR 28
TC 20
Z9 21
U1 0
U2 3
PU W B SAUNDERS CO-ELSEVIER INC
PI PHILADELPHIA
PA 1600 JOHN F KENNEDY BOULEVARD, STE 1800, PHILADELPHIA, PA 19103-2899 USA
SN 0749-8063
J9 ARTHROSCOPY
JI Arthroscopy
PD FEB
PY 2010
VL 26
IS 2
BP 239
EP 248
DI 10.1016/j.arthro.2009.06.006
PG 10
WC Orthopedics; Surgery
SC Orthopedics; Surgery
GA 552NW
UT WOS:000274300100015
PM 20141987
ER
PT J
AU Larsen, JA
Cabanela, JE
Humphreys, RM
Haviland, AP
AF Larsen, Jeffrey A.
Cabanela, Juan E.
Humphreys, Roberta M.
Haviland, Aaron P.
TI MAPPING THE ASYMMETRIC THICK DISK. I. A SEARCH FOR TRIAXIALITY
SO ASTRONOMICAL JOURNAL
LA English
DT Article
DE Galaxy: kinematics and dynamics; Galaxy: structure
ID CANIS MAJOR OVERDENSITY; MILKY-WAY; KINEMATIC ANALYSIS; STELLAR
STRUCTURE; GALACTIC BULGE; STAR COUNTS; SKY SURVEY; GALAXY; BAR; CATALOG
AB A significant asymmetry in the distribution of faint blue stars in the inner Galaxy, Quadrant 1 (l = 20 degrees-45 degrees) compared to Quadrant 4 was first reported by Larsen & Humphreys in 1996. Parker et al. greatly expanded the survey to determine its spatial extent and shape and the kinematics of the affected stars. This excess in the star counts was subsequently confirmed by Juric et al. using Sloan Digital Sky Survey data. Possible explanations for the asymmetry include a merger remnant, a triaxial thick disk, and a possible interaction with the bar in the disk. In this paper, we describe our program of wide field photometry to map the asymmetry to fainter magnitudes and therefore larger distances. To search for the signature of triaxiality, we extended our survey to higher Galactic longitudes. We find no evidence for an excess of faint blue stars at l >= 55 degrees including the faintest magnitude interval. The asymmetry and star count excess in Quadrant 1 is thus not due to a triaxial thick disk.
C1 [Larsen, Jeffrey A.; Haviland, Aaron P.] USN Acad, Dept Phys, Annapolis, MD 21402 USA.
[Cabanela, Juan E.] Minnesota State Univ Moorhead, Dept Phys & Astron, Moorhead, MN 56563 USA.
[Humphreys, Roberta M.] Univ Minnesota, Dept Astron, Minneapolis, MN 55455 USA.
RP Larsen, JA (reprint author), USN Acad, Dept Phys, Annapolis, MD 21402 USA.
EM larsen@usna.edu; cabanela@mnstate.edu; roberta@umn.edu
FU National Science Foundation [AST0729989, AST0507309, AST0507170]; NRL
[N0001409WR40059 (FY09)]
FX This work was supported by Collaborative National Science Foundation
grants to J.E. Cabanela (AST0729989), J.A. Larsen (AST0507309), and R.M.
Humphreys (AST0507170). We thank Steward Observatory and NOAO for
observing support, and our respective home institutions for providing
facilities support. A. P. Haviland's contributions to this paper were in
fulfillment of his Trident Scholarship during his final year at USNA
supported by NRL grant N0001409WR40059 (FY09). J.E. Cabanela thanks
undergraduate research assistants Joshua Swanson and Laura Broaded for
testing and reducing the original Y4KCam data from 2006 April. J.A.
Larsen also thanks Debora Katz for observing assistance at Steward
Observatory and co-advising A. P. Haviland's Trident project.
NR 37
TC 6
Z9 6
U1 0
U2 1
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 0004-6256
J9 ASTRON J
JI Astron. J.
PD FEB
PY 2010
VL 139
IS 2
BP 348
EP 356
DI 10.1088/0004-6256/139/2/348
PG 9
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 544FY
UT WOS:000273640200004
ER
PT J
AU Tokovinin, A
Mason, BD
Hartkopf, WI
AF Tokovinin, Andrei
Mason, Brian D.
Hartkopf, William I.
TI SPECKLE INTERFEROMETRY AT THE BLANCO AND SOAR TELESCOPES IN 2008 AND
2009
SO ASTRONOMICAL JOURNAL
LA English
DT Article
DE binaries: general
ID VISUAL DOUBLE STARS; BINARY STARS; SOLAR NEIGHBORHOOD; WIYN TELESCOPE;
MULTIPLE STARS; CD-ROM; ORBITS; CATALOG
AB The results of speckle interferometric measurements of binary and multiple stars conducted in 2008 and 2009 at the Blanco and SOAR 4 m telescopes in Chile are presented. A total of 1898 measurements of 1189 resolved pairs or sub-systems and 394 observations of 285 un-resolved targets are listed. We resolved for the first time 48 new pairs, 21 of which are new sub-systems in close visual multiple stars. Typical internal measurement precision is 0.3 mas in both coordinates, typical companion detection capability is Delta m similar to 4.2 at 0 ''.15 separation. These data were obtained with a new electron-multiplication CCD camera; data processing is described in detail, including estimation of magnitude difference, observational errors, detection limits, and analysis of artifacts. We comment on some newly discovered pairs and objects of special interest.
C1 [Tokovinin, Andrei] Cerro Tololo Interamer Observ, La Serena, Chile.
[Mason, Brian D.; Hartkopf, William I.] USN Observ, Washington, DC 20392 USA.
RP Tokovinin, A (reprint author), Cerro Tololo Interamer Observ, Casilla 603, La Serena, Chile.
EM atokovinin@ctio.noao.edu; bdm@usno.navy.mil; wih@usno.navy.mil
OI Tokovinin, Andrei/0000-0002-2084-0782
FU National Aeronautics and Space Administration [NNH06AD70I]; Double Star
Program
FX The USNO speckle interferometry program has been supported by the
National Aeronautics and Space Administration under Grant No.
NNH06AD70I, issued through the Terrestrial Planet Finder Foundation
Science program. This research has made use of the SIMBAD database,
operated at CDS, Strasbourg, France. Thanks are also extended to Ken
Johnston and the U.S. Naval Observatory for their continued support of
the Double Star Program.
NR 29
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U1 0
U2 2
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 0004-6256
J9 ASTRON J
JI Astron. J.
PD FEB
PY 2010
VL 139
IS 2
BP 743
EP 756
DI 10.1088/0004-6256/139/2/743
PG 14
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 544FY
UT WOS:000273640200032
ER
PT J
AU Balthasar, H
Muglach, K
AF Balthasar, H.
Muglach, K.
TI The three-dimensional structure of sunspots II. The moat flow at two
different heights
SO ASTRONOMY & ASTROPHYSICS
LA English
DT Article
DE sunspots; Sun: UV radiation
ID MOVING MAGNETIC FEATURES; ACTIVE-REGION; 2-DIMENSIONAL SPECTROSCOPY;
PENUMBRAL FILAMENTS; TRANSITION REGION; FEATURE PAIRS; VELOCITY;
OSCILLATIONS; FIELDS; WAVES
AB Aims. Many sunspots are surrounded by a radial outflow called the moat flow. We investigate the moat flow at two different heights of the solar atmosphere for a sunspot whose magnetic properties were reported in the first paper of this series.
Methods. We use two simultaneous time series taken with the Transition Region And Coronal Explorer (TRACE) in white light and in the UV at 170 nm. The field-of-view is centered on the small sunspot NOAA10886 located near disk center. Horizontal velocities are derived by applying two different local correlation tracking techniques.
Results. Outflows are found everywhere in the moat. In the inner moat, the velocities from the UV series are larger than those from white light, whereas in the outer part of the moat we find the converse result.
Conclusions. The results imply that the white light velocities represent a general outflow of the quiet sun plasma in the moat, while UV velocities are dominated by small bright points that move faster than the general plasma flow.
C1 [Balthasar, H.] Astrophys Inst Potsdam, D-14482 Potsdam, Germany.
[Muglach, K.] USN, Res Lab, Artep Inc, Washington, DC 20375 USA.
RP Balthasar, H (reprint author), Astrophys Inst Potsdam, Sternwarte 16, D-14482 Potsdam, Germany.
EM hbalthasar@aip.de; muglach@nrl.navy.mil
NR 37
TC 9
Z9 9
U1 0
U2 0
PU EDP SCIENCES S A
PI LES ULIS CEDEX A
PA 17, AVE DU HOGGAR, PA COURTABOEUF, BP 112, F-91944 LES ULIS CEDEX A,
FRANCE
SN 1432-0746
J9 ASTRON ASTROPHYS
JI Astron. Astrophys.
PD FEB-MAR
PY 2010
VL 511
AR A67
DI 10.1051/0004-6361/200912978
PG 7
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 571LD
UT WOS:000275752400062
ER
PT J
AU Abdo, AA
Ackermann, M
Ajello, M
Atwood, WB
Axelsson, M
Baldini, L
Ballet, J
Barbiellini, G
Bastieri, D
Bechtol, K
Bellazzini, R
Berenji, B
Bloom, ED
Bonamente, E
Borgland, AW
Bregeon, J
Brez, A
Brigida, M
Bruel, P
Burnett, TH
Caliandro, GA
Cameron, RA
Caraveo, PA
Casandjian, JM
Cavazzuti, E
Cecchi, C
Celik, O
Charles, E
Chekhtman, A
Cheung, CC
Chiang, J
Ciprini, S
Claus, R
Cohen-Tanugi, J
Conrad, J
Dermer, CD
de Angelis, A
de Palma, F
Digel, SW
Silva, EDE
Drell, PS
Drlica-Wagner, A
Dubois, R
Dumora, D
Farnier, C
Favuzzi, C
Fegan, SJ
Focke, WB
Foschini, L
Frailis, M
Fukazawa, Y
Funk, S
Fusco, P
Gargano, F
Gasparrini, D
Gehrels, N
Germani, S
Giebels, B
Giglietto, N
Giordano, F
Glanzman, T
Godfrey, G
Grenier, IA
Grondin, MH
Grove, JE
Guillemot, L
Guiriec, S
Hanabata, Y
Harding, AK
Hayashida, M
Hays, E
Hughes, RE
Johannesson, G
Johnson, AS
Johnson, RP
Johnson, WN
Kamae, T
Katagiri, H
Kataoka, J
Kawai, N
Kerr, M
Knodlseder, J
Kocian, ML
Kuss, M
Lande, J
Latronico, L
Lemoine-Goumard, M
Longo, F
Loparco, F
Lott, B
Lovellette, MN
Lubrano, P
Madejski, GM
Makeev, A
Mazziotta, MN
McConville, W
McEnery, JE
Meurer, C
Michelson, PF
Mitthumsiri, W
Mizuno, T
Moiseev, AA
Monte, C
Monzani, ME
Morselli, A
Moskalenko, IV
Murgia, S
Nakamori, T
Nolan, PL
Norris, JP
Nuss, E
Ohsugi, T
Omodei, N
Orlando, E
Ormes, JF
Ozaki, M
Paneque, D
Panetta, JH
Parent, D
Pelassa, V
Pepe, M
Pesce-Rollins, M
Piron, F
Porter, TA
Raino, S
Rando, R
Razzano, M
Reimer, A
Reimer, O
Reposeur, T
Ritz, S
Rodriguez, AY
Romani, RW
Roth, M
Ryde, F
Sadrozinski, HFW
Sander, A
Parkinson, PMS
Scargle, JD
Sellerholm, A
Sgro, C
Shaw, MS
Smith, DA
Smith, PD
Spandre, G
Spinelli, P
Strickman, MS
Strong, AW
Suson, DJ
Takahashi, H
Tanaka, T
Thayer, JB
Thayer, JG
Thompson, DJ
Tibaldo, L
Tibolla, O
Torres, DF
Tosti, G
Tramacere, A
Uchiyama, Y
Usher, TL
Vasileiou, V
Vilchez, N
Vitale, V
Waite, AP
Wang, P
Winer, BL
Wood, KS
Ylinen, T
Ziegler, M
AF Abdo, A. A.
Ackermann, M.
Ajello, M.
Atwood, W. B.
Axelsson, M.
Baldini, L.
Ballet, J.
Barbiellini, G.
Bastieri, D.
Bechtol, K.
Bellazzini, R.
Berenji, B.
Bloom, E. D.
Bonamente, E.
Borgland, A. W.
Bregeon, J.
Brez, A.
Brigida, M.
Bruel, P.
Burnett, T. H.
Caliandro, G. A.
Cameron, R. A.
Caraveo, P. A.
Casandjian, J. M.
Cavazzuti, E.
Cecchi, C.
Celik, Oe
Charles, E.
Chekhtman, A.
Cheung, C. C.
Chiang, J.
Ciprini, S.
Claus, R.
Cohen-Tanugi, J.
Conrad, J.
Dermer, C. D.
de Angelis, A.
de Palma, F.
Digel, S. W.
do Couto e Silva, E.
Drell, P. S.
Drlica-Wagner, A.
Dubois, R.
Dumora, D.
Farnier, C.
Favuzzi, C.
Fegan, S. J.
Focke, W. B.
Foschini, L.
Frailis, M.
Fukazawa, Y.
Funk, S.
Fusco, P.
Gargano, F.
Gasparrini, D.
Gehrels, N.
Germani, S.
Giebels, B.
Giglietto, N.
Giordano, F.
Glanzman, T.
Godfrey, G.
Grenier, I. A.
Grondin, M. -H.
Grove, J. E.
Guillemot, L.
Guiriec, S.
Hanabata, Y.
Harding, A. K.
Hayashida, M.
Hays, E.
Hughes, R. E.
Johannesson, G.
Johnson, A. S.
Johnson, R. P.
Johnson, W. N.
Kamae, T.
Katagiri, H.
Kataoka, J.
Kawai, N.
Kerr, M.
Knoedlseder, J.
Kocian, M. L.
Kuss, M.
Lande, J.
Latronico, L.
Lemoine-Goumard, M.
Longo, F.
Loparco, F.
Lott, B.
Lovellette, M. N.
Lubrano, P.
Madejski, G. M.
Makeev, A.
Mazziotta, M. N.
McConville, W.
McEnery, J. E.
Meurer, C.
Michelson, P. F.
Mitthumsiri, W.
Mizuno, T.
Moiseev, A. A.
Monte, C.
Monzani, M. E.
Morselli, A.
Moskalenko, I. V.
Murgia, S.
Nakamori, T.
Nolan, P. L.
Norris, J. P.
Nuss, E.
Ohsugi, T.
Omodei, N.
Orlando, E.
Ormes, J. F.
Ozaki, M.
Paneque, D.
Panetta, J. H.
Parent, D.
Pelassa, V.
Pepe, M.
Pesce-Rollins, M.
Piron, F.
Porter, T. A.
Raino, S.
Rando, R.
Razzano, M.
Reimer, A.
Reimer, O.
Reposeur, T.
Ritz, S.
Rodriguez, A. Y.
Romani, R. W.
Roth, M.
Ryde, F.
Sadrozinski, H. F. -W.
Sander, A.
Parkinson, P. M. Saz
Scargle, J. D.
Sellerholm, A.
Sgro, C.
Shaw, M. S.
Smith, D. A.
Smith, P. D.
Spandre, G.
Spinelli, P.
Strickman, M. S.
Strong, A. W.
Suson, D. J.
Takahashi, H.
Tanaka, T.
Thayer, J. B.
Thayer, J. G.
Thompson, D. J.
Tibaldo, L.
Tibolla, O.
Torres, D. F.
Tosti, G.
Tramacere, A.
Uchiyama, Y.
Usher, T. L.
Vasileiou, V.
Vilchez, N.
Vitale, V.
Waite, A. P.
Wang, P.
Winer, B. L.
Wood, K. S.
Ylinen, T.
Ziegler, M.
TI DETECTION OF GAMMA-RAY EMISSION FROM THE STARBURST GALAXIES M82 AND NGC
253 WITH THE LARGE AREA TELESCOPE ON FERMI
SO ASTROPHYSICAL JOURNAL LETTERS
LA English
DT Article
DE cosmic rays; galaxies: individual (M82, NGC 253); gamma rays: general;
radiation mechanisms: non-thermal
ID ALL-SKY SURVEY; NEARBY GALAXIES; SUPERNOVA RATE; RADIO-SOURCES; NGC-253;
GAS; DISCOVERY; DISTANCE; NUCLEUS
AB We report the detection of high-energy gamma-ray emission from two starburst galaxies using data obtained with the Large Area Telescope on board the Fermi Gamma-ray Space Telescope. Steady point-like emission above 200 MeV has been detected at significance levels of 6.8 sigma and 4.8 sigma, respectively, from sources positionally coincident with locations of the starburst galaxies M82 and NGC 253. The total fluxes of the sources are consistent with gamma-ray emission originating from the interaction of cosmic rays with local interstellar gas and radiation fields and constitute evidence for a link between massive star formation and gamma-ray emission in star-forming galaxies.
C1 [Abdo, A. A.; Chekhtman, A.; Dermer, C. D.; Grove, J. E.; Johnson, W. N.; Lovellette, M. N.; Makeev, A.; Strickman, M. S.; Wood, K. S.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Abdo, A. A.] Natl Acad Sci, Natl Res Council Res Associate, Washington, DC 20001 USA.
[Ackermann, M.; Ajello, M.; Bechtol, K.; Berenji, B.; Bloom, E. D.; Borgland, A. W.; Cameron, R. A.; Charles, E.; Chiang, J.; Claus, R.; Digel, S. W.; do Couto e Silva, E.; Drell, P. S.; Drlica-Wagner, A.; Dubois, R.; Focke, W. B.; Funk, S.; Glanzman, T.; Godfrey, G.; Hayashida, M.; Johannesson, G.; Johnson, A. S.; Kamae, T.; Kocian, M. L.; Lande, J.; Madejski, G. M.; Michelson, P. F.; Mitthumsiri, W.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Nolan, P. L.; Paneque, D.; Panetta, J. H.; Reimer, A.; Reimer, O.; Romani, R. W.; Shaw, M. S.; Tanaka, T.; Thayer, J. B.; Thayer, J. G.; Tramacere, A.; Uchiyama, Y.; Usher, T. L.; Waite, A. P.; Wang, P.] Stanford Univ, WW Hansen Expt Phys Lab, Kavli Inst Particle Astrophys & Cosmol, Dept Phys, Stanford, CA 94305 USA.
[Ackermann, M.; Ajello, M.; Bechtol, K.; Berenji, B.; Bloom, E. D.; Borgland, A. W.; Cameron, R. A.; Charles, E.; Chiang, J.; Claus, R.; Digel, S. W.; do Couto e Silva, E.; Drell, P. S.; Drlica-Wagner, A.; Dubois, R.; Focke, W. B.; Funk, S.; Glanzman, T.; Godfrey, G.; Hayashida, M.; Johannesson, G.; Johnson, A. S.; Kamae, T.; Kocian, M. L.; Lande, J.; Madejski, G. M.; Michelson, P. F.; Mitthumsiri, W.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Nolan, P. L.; Paneque, D.; Panetta, J. H.; Reimer, A.; Reimer, O.; Romani, R. W.; Shaw, M. S.; Tanaka, T.; Thayer, J. B.; Thayer, J. G.; Tramacere, A.; Uchiyama, Y.; Usher, T. L.; Waite, A. P.; Wang, P.] Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA.
[Atwood, W. B.; Johnson, R. P.; Porter, T. A.; Ritz, S.; Sadrozinski, H. F. -W.; Parkinson, P. M. Saz; Ziegler, M.] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA.
[Atwood, W. B.; Johnson, R. P.; Porter, T. A.; Ritz, S.; Sadrozinski, H. F. -W.; Parkinson, P. M. Saz; Ziegler, M.] Univ Calif Santa Cruz, Dept Phys, Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA.
[Axelsson, M.] Stockholm Univ, Dept Astron, SE-10691 Stockholm, Sweden.
[Axelsson, M.; Ryde, F.; Sellerholm, A.; Ylinen, T.] Oskar Klein Ctr Cosmo Particle Phys, SE-10691 Stockholm, Sweden.
[Baldini, L.; Bellazzini, R.; Bregeon, J.; Brez, A.; Kuss, M.; Latronico, L.; Omodei, N.; Pesce-Rollins, M.; Razzano, M.; Sgro, C.; Spandre, G.] Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy.
[Ballet, J.; Casandjian, J. M.; Grenier, I. A.; Tibaldo, L.] Univ Paris Diderot, CEA Saclay, CNRS, Lab AIM,CEA IRFU,Serv Astrophys, 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.; Rando, R.; Tibaldo, L.] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy.
[Bastieri, D.; Rando, R.; Tibaldo, L.] Univ Padua, Dipartimento Fis G Galilei, I-35131 Padua, Italy.
[Bonamente, E.; Cecchi, C.; Ciprini, S.; Germani, S.; Lubrano, P.; Pepe, M.; Tosti, G.] Ist Nazl Fis Nucl, Sez Perugia, I-06123 Perugia, Italy.
[Bonamente, E.; Cecchi, C.; Ciprini, S.; Germani, S.; Lubrano, P.; Pepe, M.; Tosti, G.] Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy.
[Brigida, M.; Caliandro, G. A.; de Palma, F.; Favuzzi, C.; Fusco, P.; Giglietto, N.; Giordano, F.; Loparco, F.; Monte, C.; Raino, S.; Spinelli, P.] Univ Bari, Dipartimento Fis M Merlin, I-70126 Bari, Italy.
[Brigida, M.; Caliandro, G. A.; de Palma, F.; Favuzzi, C.; Fusco, P.; Giglietto, N.; Giordano, F.; Loparco, F.; Monte, C.; Raino, S.; Spinelli, P.] Politecn Bari, I-70126 Bari, Italy.
[Brigida, M.; Caliandro, G. A.; de Palma, F.; Favuzzi, C.; Fusco, P.; Gargano, F.; Giglietto, N.; Giordano, F.; Loparco, F.; Mazziotta, M. N.; Monte, C.; Raino, S.; Spinelli, P.] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy.
[Bruel, P.; Fegan, S. J.; Giebels, B.] Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France.
[Caraveo, P. A.] INAF Ist Astrofis Spaziale & Fis Cosm, I-20133 Milan, Italy.
[Cavazzuti, E.; Gasparrini, D.] Sci Data Ctr, ASI, I-00044 Frascati, Roma, Italy.
[Celik, Oe; Cheung, C. C.; Gehrels, N.; Harding, A. K.; Hays, E.; McConville, W.; McEnery, J. E.; Moiseev, A. A.; Thompson, D. J.; Vasileiou, V.] NASA, Goddard Space Flight Ctr, CRESST, Greenbelt, MD 20771 USA.
[Celik, Oe; Vasileiou, V.] Univ Maryland Baltimore Cty, Baltimore, MD 21250 USA.
[Chekhtman, A.; Makeev, A.] George Mason Univ, Fairfax, VA 22030 USA.
[Cohen-Tanugi, J.; Farnier, C.; Nuss, E.; Pelassa, V.; Piron, F.] Univ Montpellier 2, CNRS, IN2P3, Lab Phys Theor & Astroparticules, Montpellier, France.
[Meurer, C.; Sellerholm, A.] Stockholm Univ, Dept Phys, SE-10691 Stockholm, Sweden.
[Ryde, F.; Ylinen, T.] Royal Inst Technol, Dept Phys, SE-10691 Stockholm, Sweden.
[de Angelis, A.; Frailis, M.] Univ Udine, Dipartimento Fis, I-33100 Udine, Italy.
[de Angelis, A.; Frailis, M.] Ist Nazl Fis Nucl, Sez Trieste, Grp Collegato Udine, I-33100 Udine, Italy.
[Dumora, D.; Grondin, M. -H.; Guillemot, L.; Lemoine-Goumard, M.; Lott, B.; Parent, D.; Reposeur, T.; Smith, D. A.] Univ Bordeaux, UMR 5797, Ctr Etud Nucl Bordeaux Gradignan, F-33175 Gradignan, France.
[Dumora, D.; Grondin, M. -H.; Guillemot, L.; Lemoine-Goumard, M.; Lott, B.; Parent, D.; Reposeur, T.; Smith, D. A.] Ctr Etud Nucl Bordeaux Gradignan, UMR 5797, IN2P3, CNRS, F-33175 Gradignan, France.
[Foschini, L.] INAF Osservatorio Astron Brera, I-23807 Merate, Italy.
[Fukazawa, Y.; Hanabata, Y.; Katagiri, H.; Mizuno, T.; Ohsugi, T.; Takahashi, H.] Hiroshima Univ, Dept Phys Sci, Hiroshima 7398526, Japan.
[Gehrels, N.; McConville, W.; Moiseev, A. A.] Univ Maryland, College Pk, MD 20742 USA.
[Guiriec, S.] Univ Alabama, Huntsville, AL 35899 USA.
[Hughes, R. E.; Sander, A.; Smith, P. D.; Winer, B. L.] Ohio State Univ, Dept Phys, Ctr Cosmol & Astroparticle Phys, Columbus, OH 43210 USA.
[Kataoka, J.; Kawai, N.; Nakamori, T.] Tokyo Inst Technol, Dept Phys, Meguro, Tokyo 1528551, Japan.
[Kataoka, J.] Waseda Univ, Shinjuku Ku, Tokyo, Japan.
[Kawai, N.] RIKEN, Inst Phys & Chem Res, Cosm Radiat Lab, Wako, Saitama 3510198, Japan.
[Knoedlseder, J.; Vilchez, N.] UPS, CNRS, Ctr Etud Spatiale Rayonnements, F-31028 Toulouse 4, France.
[Vitale, V.] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, I-00133 Rome, Italy.
[Norris, J. P.; Ormes, J. F.] Univ Denver, Dept Phys & Astron, Denver, CO 80208 USA.
[Orlando, E.; Strong, A. W.] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany.
[Morselli, A.; Ozaki, M.; Uchiyama, Y.] Japan Aerosp Explorat Agcy, Inst Space & Astronaut Sci, JAXA, Sagamihara, Kanagawa 2298510, Japan.
[Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria.
[Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria.
[Rodriguez, A. Y.; Torres, D. F.] Inst Ciencies Espai IEEC CSIC, Barcelona 08193, Spain.
[Scargle, J. D.] NASA, Ames Res Ctr, Div Space Sci, Moffett Field, CA 94035 USA.
[Suson, D. J.] Purdue Univ Calumet, Dept Chem & Phys, Hammond, IN 46323 USA.
[Tibolla, O.] Max Planck Inst Kernphys, D-69029 Heidelberg, Germany.
[Torres, D. F.] Inst Catalana Recerca & Estudis Avancats, Barcelona, Spain.
[Tramacere, A.] CIFS, I-10133 Turin, Italy.
[Vitale, V.] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy.
[Ylinen, T.] Univ Kalmar, Sch Pure & Appl Nat Sci, SE-39182 Kalmar, Sweden.
RP Abdo, AA (reprint author), USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
EM arodrig@aliga.ieec.uab.es; bechtol@stanford.edu;
charles.dermer@nrl.navy.mil; Olaf.Reimer@uibk.ac.at; dtorres@ieec.uab.es
RI Saz Parkinson, Pablo Miguel/I-7980-2013; Thompson, David/D-2939-2012;
Harding, Alice/D-3160-2012; Gehrels, Neil/D-2971-2012; Ozaki,
Masanobu/K-1165-2013; McEnery, Julie/D-6612-2012; Baldini,
Luca/E-5396-2012; lubrano, pasquale/F-7269-2012; Morselli,
Aldo/G-6769-2011; Foschini, Luigi/H-3833-2012; Nolan,
Patrick/A-5582-2009; Kuss, Michael/H-8959-2012; giglietto,
nicola/I-8951-2012; Tosti, Gino/E-9976-2013; Rando,
Riccardo/M-7179-2013; Hays, Elizabeth/D-3257-2012; Johnson,
Neil/G-3309-2014; Reimer, Olaf/A-3117-2013; Funk, Stefan/B-7629-2015;
Loparco, Francesco/O-8847-2015; Johannesson, Gudlaugur/O-8741-2015;
Gargano, Fabio/O-8934-2015; Moskalenko, Igor/A-1301-2007; Mazziotta,
Mario /O-8867-2015; Sgro, Carmelo/K-3395-2016; Torres,
Diego/O-9422-2016;
OI Thompson, David/0000-0001-5217-9135; lubrano,
pasquale/0000-0003-0221-4806; Morselli, Aldo/0000-0002-7704-9553;
Foschini, Luigi/0000-0001-8678-0324; giglietto,
nicola/0000-0002-9021-2888; Reimer, Olaf/0000-0001-6953-1385; Funk,
Stefan/0000-0002-2012-0080; Loparco, Francesco/0000-0002-1173-5673;
Johannesson, Gudlaugur/0000-0003-1458-7036; Gargano,
Fabio/0000-0002-5055-6395; Moskalenko, Igor/0000-0001-6141-458X;
Mazziotta, Mario /0000-0001-9325-4672; Torres,
Diego/0000-0002-1522-9065; Giordano, Francesco/0000-0002-8651-2394;
Frailis, Marco/0000-0002-7400-2135; Caraveo,
Patrizia/0000-0003-2478-8018; Sgro', Carmelo/0000-0001-5676-6214; Rando,
Riccardo/0000-0001-6992-818X; Bastieri, Denis/0000-0002-6954-8862;
Omodei, Nicola/0000-0002-5448-7577; Pesce-Rollins,
Melissa/0000-0003-1790-8018; Axelsson, Magnus/0000-0003-4378-8785;
Gasparrini, Dario/0000-0002-5064-9495; Tramacere,
Andrea/0000-0002-8186-3793; Baldini, Luca/0000-0002-9785-7726
FU Istituto Nazionale di Astrofisica in Italy; Centre National d'Etudes
Spatiales in France
FX Additional support for science analysis during the operations phase is
gratefully acknowledged from the Istituto Nazionale di Astrofisica in
Italy and the Centre National d'Etudes Spatiales in France.
NR 49
TC 109
Z9 109
U1 1
U2 8
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 2010
VL 709
IS 2
BP L152
EP L157
DI 10.1088/2041-8205/709/2/L152
PG 6
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 551LD
UT WOS:000274209300013
ER
PT J
AU De Pasquale, M
Schady, P
Kuin, NPM
Page, MJ
Curran, PA
Zane, S
Oates, SR
Holland, ST
Breeveld, AA
Hoversten, EA
Chincarini, G
Grupe, D
Abdo, AA
Ackermann, M
Ajello, M
Axelsson, M
Baldini, L
Ballet, J
Barbiellini, G
Baring, MG
Bastieri, D
Bechtol, K
Bellazzini, R
Berenji, B
Bissaldi, E
Blandford, RD
Bloom, ED
Bonamente, E
Borgland, AW
Bouvier, A
Bregeon, J
Brez, A
Briggs, MS
Brigida, M
Bruel, P
Burnett, TH
Buson, S
Caliandro, GA
Cameron, RA
Caraveo, PA
Carrigan, S
Casandjian, JM
Cecchi, C
Celik, O
Chekhtman, A
Chiang, J
Ciprini, S
Claus, R
Cohen-Tanugi, J
Connaughton, V
Conrad, J
Dermer, CD
de Angelis, A
de Palma, F
Dingus, BL
Silva, EDE
Drell, PS
Dubois, R
Dumora, D
Farnier, C
Favuzzi, C
Fegan, SJ
Fishman, G
Focke, WB
Frailis, M
Fukazawa, Y
Funk, S
Fusco, P
Gargano, F
Gasparrini, D
Gehrels, N
Germani, S
Giglietto, N
Giordano, F
Glanzman, T
Godfrey, G
Granot, J
Greiner, J
Grenier, IA
Grove, JE
Guillemot, L
Guiriec, S
Harding, AK
Hayashida, M
Hays, E
Horan, D
Hughes, RE
Jackson, MS
Johannesson, G
Johnson, AS
Johnson, WN
Kamae, T
Katagiri, H
Kataoka, J
Kawai, N
Kerr, M
Kippen, RM
Knodlseder, J
Kocevski, D
Kuss, M
Lande, J
Latronico, L
Lemoine-Goumard, M
Longo, F
Loparco, F
Lott, B
Lovellette, MN
Lubrano, P
Makeev, A
Mazziotta, MN
McEnery, JE
McGlynn, S
Meegan, C
Meszaros, P
Meurer, C
Michelson, PF
Mitthumsiri, W
Mizuno, T
Monte, C
Monzani, ME
Moretti, E
Morselli, A
Moskalenko, IV
Murgia, S
Nolan, PL
Norris, JP
Nuss, E
Ohno, M
Ohsugi, T
Omodei, N
Orlando, E
Ormes, JF
Paciesas, WS
Paneque, D
Panetta, JH
Parent, D
Pelassa, V
Pepe, M
Pesce-Rollins, M
Piron, F
Porter, TA
Preece, R
Raino, S
Rando, R
Razzano, M
Reimer, A
Reimer, O
Reposeur, T
Ritz, S
Rochester, LS
Rodriguez, AY
Roth, M
Ryde, F
Sadrozinski, HFW
Sander, A
Parkinson, PMS
Scargle, JD
Schalk, TL
Sgro, C
Siskind, EJ
Smith, PD
Spandre, G
Spinelli, P
Stamatikos, M
Starck, JL
Stecker, FW
Strickman, MS
Suson, DJ
Tajima, H
Takahashi, H
Tanaka, T
Thayer, JB
Thayer, JG
Thompson, DJ
Tibaldo, L
Toma, K
Torres, DF
Tosti, G
Tramacere, A
Uchiyama, Y
Uehara, T
Usher, TL
van der Horst, AJ
Vasileiou, V
Vilchez, N
Vitale, V
von Kienlin, A
Waite, AP
Wang, P
Winer, BL
Wood, KS
Wu, XF
Yamazaki, R
Ylinen, T
Ziegler, M
AF De Pasquale, M.
Schady, P.
Kuin, N. P. M.
Page, M. J.
Curran, P. A.
Zane, S.
Oates, S. R.
Holland, S. T.
Breeveld, A. A.
Hoversten, E. A.
Chincarini, G.
Grupe, D.
Abdo, A. A.
Ackermann, M.
Ajello, M.
Axelsson, M.
Baldini, L.
Ballet, J.
Barbiellini, G.
Baring, M. G.
Bastieri, D.
Bechtol, K.
Bellazzini, R.
Berenji, B.
Bissaldi, E.
Blandford, R. D.
Bloom, E. D.
Bonamente, E.
Borgland, A. W.
Bouvier, A.
Bregeon, J.
Brez, A.
Briggs, M. S.
Brigida, M.
Bruel, P.
Burnett, T. H.
Buson, S.
Caliandro, G. A.
Cameron, R. A.
Caraveo, P. A.
Carrigan, S.
Casandjian, J. M.
Cecchi, C.
Celik, Oe.
Chekhtman, A.
Chiang, J.
Ciprini, S.
Claus, R.
Cohen-Tanugi, J.
Connaughton, V.
Conrad, J.
Dermer, C. D.
de Angelis, A.
de Palma, F.
Dingus, B. L.
do Couto e Silva, E.
Drell, P. S.
Dubois, R.
Dumora, D.
Farnier, C.
Favuzzi, C.
Fegan, S. J.
Fishman, G.
Focke, W. B.
Frailis, M.
Fukazawa, Y.
Funk, S.
Fusco, P.
Gargano, F.
Gasparrini, D.
Gehrels, N.
Germani, S.
Giglietto, N.
Giordano, F.
Glanzman, T.
Godfrey, G.
Granot, J.
Greiner, J.
Grenier, I. A.
Grove, J. E.
Guillemot, L.
Guiriec, S.
Harding, A. K.
Hayashida, M.
Hays, E.
Horan, D.
Hughes, R. E.
Jackson, M. S.
Johannesson, G.
Johnson, A. S.
Johnson, W. N.
Kamae, T.
Katagiri, H.
Kataoka, J.
Kawai, N.
Kerr, M.
Kippen, R. M.
Knoedlseder, J.
Kocevski, D.
Kuss, M.
Lande, J.
Latronico, L.
Lemoine-Goumard, M.
Longo, F.
Loparco, F.
Lott, B.
Lovellette, M. N.
Lubrano, P.
Makeev, A.
Mazziotta, M. N.
McEnery, J. E.
McGlynn, S.
Meegan, C.
Meszaros, P.
Meurer, C.
Michelson, P. F.
Mitthumsiri, W.
Mizuno, T.
Monte, C.
Monzani, M. E.
Moretti, E.
Morselli, A.
Moskalenko, I. V.
Murgia, S.
Nolan, P. L.
Norris, J. P.
Nuss, E.
Ohno, M.
Ohsugi, T.
Omodei, N.
Orlando, E.
Ormes, J. F.
Paciesas, W. S.
Paneque, D.
Panetta, J. H.
Parent, D.
Pelassa, V.
Pepe, M.
Pesce-Rollins, M.
Piron, F.
Porter, T. A.
Preece, R.
Raino, S.
Rando, R.
Razzano, M.
Reimer, A.
Reimer, O.
Reposeur, T.
Ritz, S.
Rochester, L. S.
Rodriguez, A. Y.
Roth, M.
Ryde, F.
Sadrozinski, H. F. -W.
Sander, A.
Parkinson, P. M. Saz
Scargle, J. D.
Schalk, T. L.
Sgro, C.
Siskind, E. J.
Smith, P. D.
Spandre, G.
Spinelli, P.
Stamatikos, M.
Starck, J. -L.
Stecker, F. W.
Strickman, M. S.
Suson, D. J.
Tajima, H.
Takahashi, H.
Tanaka, T.
Thayer, J. B.
Thayer, J. G.
Thompson, D. J.
Tibaldo, L.
Toma, K.
Torres, D. F.
Tosti, G.
Tramacere, A.
Uchiyama, Y.
Uehara, T.
Usher, T. L.
van der Horst, A. J.
Vasileiou, V.
Vilchez, N.
Vitale, V.
von Kienlin, A.
Waite, A. P.
Wang, P.
Winer, B. L.
Wood, K. S.
Wu, X. F.
Yamazaki, R.
Ylinen, T.
Ziegler, M.
TI SWIFT AND FERMI OBSERVATIONS OF THE EARLY AFTERGLOW OF THE SHORT
GAMMA-RAY BURST 090510
SO ASTROPHYSICAL JOURNAL LETTERS
LA English
DT Article
DE gamma-ray burst: individual (GRB090510); relativistic processes; shock
waves
ID LIGHT CURVES; EXTENDED EMISSION; TELESCOPE; BREAKS; PROMPT; JETS; GRBS
AB We present the observations of GRB090510 performed by the Fermi Gamma-Ray Space Telescope and the Swift observatory. This is a bright, short burst that shows an extended emission detected in the GeV range. Furthermore, its optical emission initially rises, a feature so far observed only in long bursts, while the X-ray flux shows an initial shallow decrease, followed by a steeper decay. This exceptional behavior enables us to investigate the physical properties of the gamma-ray burst outflow, poorly known in short bursts. We discuss internal and external shock models for the broadband energy emission of this object.
C1 [De Pasquale, M.; Schady, P.; Kuin, N. P. M.; Page, M. J.; Curran, P. A.; Zane, S.; Oates, S. R.; Breeveld, A. A.] Univ Coll London, Mullard Space Sci Lab, Dorking RH5 6NT, Surrey, England.
[Holland, S. T.; Celik, Oe.; Gehrels, N.; Harding, A. K.; Hays, E.; McEnery, J. E.; Stamatikos, M.; Stecker, F. W.; Thompson, D. J.; Vasileiou, V.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Hoversten, E. A.; Grupe, D.; Gehrels, N.; Meszaros, P.; Toma, K.; Wu, X. F.] Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA.
[Chincarini, G.] Univ Milano Bicocca, I-20126 Milan, Italy.
[Chincarini, G.] Osservatorio Astron Brera INAF, I-23807 Merate, LC, Italy.
[Abdo, A. A.; Chekhtman, A.; Dermer, C. D.; Grove, J. E.; Johnson, W. N.; Lovellette, M. N.; Makeev, A.; Strickman, M. S.; Wood, K. S.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Abdo, A. A.] Natl Acad Sci, Natl Res Council Res Associate, Washington, DC 20001 USA.
[Ackermann, M.; Ajello, M.; Bechtol, K.; Berenji, B.; Blandford, R. D.; Bloom, E. D.; Borgland, A. W.; Bouvier, A.; Cameron, R. A.; Chiang, J.; Claus, R.; do Couto e Silva, E.; Drell, P. S.; Dubois, R.; Focke, W. B.; Funk, S.; Glanzman, T.; Godfrey, G.; Hayashida, M.; Johannesson, G.; Johnson, A. S.; Kamae, T.; Kocevski, D.; Lande, J.; Michelson, P. F.; Mitthumsiri, W.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Nolan, P. L.; Paneque, D.; Panetta, J. H.; Reimer, A.; Reimer, O.; Rochester, L. S.; Tajima, H.; Tanaka, T.; Thayer, J. B.; Thayer, J. G.; Tramacere, A.; Uchiyama, Y.; Usher, T. L.; Waite, A. P.; Wang, P.] Stanford Univ, WW Hansen Expt Phys Lab, Kavli Inst Particle Astrophys & Cosmol, Dept Phys, Stanford, CA 94305 USA.
[Ackermann, M.; Ajello, M.; Bechtol, K.; Berenji, B.; Blandford, R. D.; Bloom, E. D.; Borgland, A. W.; Bouvier, A.; Cameron, R. A.; Chiang, J.; Claus, R.; do Couto e Silva, E.; Drell, P. S.; Dubois, R.; Focke, W. B.; Funk, S.; Glanzman, T.; Godfrey, G.; Hayashida, M.; Johannesson, G.; Johnson, A. S.; Kamae, T.; Kocevski, D.; Lande, J.; Michelson, P. F.; Mitthumsiri, W.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Nolan, P. L.; Paneque, D.; Panetta, J. H.; Reimer, A.; Reimer, O.; Rochester, L. S.; Tajima, H.; Tanaka, T.; Thayer, J. B.; Thayer, J. G.; Tramacere, A.; Uchiyama, Y.; Usher, T. L.; Waite, A. P.; Wang, P.] Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA.
[Axelsson, M.] Stockholm Univ, Dept Astron, SE-10691 Stockholm, Sweden.
[Axelsson, M.; Jackson, M. S.; McGlynn, S.; Meurer, C.; Ryde, F.; Ylinen, T.] Oskar Klein Ctr Cosmo Particle Phys, SE-10691 Stockholm, Sweden.
[Baldini, L.; Bellazzini, R.; Bregeon, J.; Brez, A.; Kuss, M.; Latronico, L.; Omodei, N.; Pesce-Rollins, M.; Razzano, M.; Sgro, C.; Spandre, G.] Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy.
[Ballet, J.; Casandjian, J. M.; Grenier, I. A.; Starck, J. -L.; Tibaldo, L.] Univ Paris Diderot, Serv Astrophys, CNRS, Lab AIM,CEA IRFU,CEA Saclay, F-91191 Gif Sur Yvette, France.
[Barbiellini, G.; Longo, F.; Moretti, E.] Ist Nazl Fis Nucl, Sez Trieste, I-34127 Trieste, Italy.
[Barbiellini, G.; Longo, F.; Moretti, E.] Univ Trieste, Dipartimento Fis, I-34127 Trieste, Italy.
[Baring, M. G.] Rice Univ, Dept Phys & Astron, Houston, TX 77251 USA.
[Bastieri, D.; Rando, R.; Tibaldo, L.] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy.
[Bastieri, D.; Buson, S.; Carrigan, S.; Rando, R.; Tibaldo, L.] Univ Padua, Dipartimento Fis G Galilei, I-35131 Padua, Italy.
[Bissaldi, E.; Greiner, J.; Orlando, E.; von Kienlin, A.] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany.
[Bonamente, E.; Cecchi, C.; Germani, S.; Lubrano, P.; Pepe, M.; Tosti, G.] Ist Nazl Fis Nucl, Sez Perugia, I-06123 Perugia, Italy.
[Bonamente, E.; Cecchi, C.; Ciprini, S.; Germani, S.; Lubrano, P.; Pepe, M.; Tosti, G.] Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy.
[Briggs, M. S.; Connaughton, V.; Guiriec, S.; Paciesas, W. S.; Preece, R.] Univ Alabama, CSPAR, Huntsville, AL 35899 USA.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Giglietto, N.; Giordano, F.; Loparco, F.; Monte, C.; Raino, S.; Spinelli, P.] Univ Bari, Dipartimento Fis M Merlin, I-70126 Bari, Italy.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Giglietto, N.; Giordano, F.; Loparco, F.; Monte, C.; Raino, S.; Spinelli, P.] Politecn Bari, I-70126 Bari, Italy.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Gargano, F.; Giglietto, N.; Giordano, F.; Loparco, F.; Mazziotta, M. N.; Monte, C.; Raino, S.; Spinelli, P.] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy.
[Bruel, P.; Fegan, S. J.; Horan, D.] Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France.
[Burnett, T. H.; Kerr, M.; Roth, M.] Univ Washington, Dept Phys, Seattle, WA 98195 USA.
[Caliandro, G. A.; Rodriguez, A. Y.; Torres, D. F.] Inst Ciencies Espai IEEC CSIC, Barcelona 08193, Spain.
[Caraveo, P. A.] INAF Ist Astrofis Spaziale & Fis Cosm, I-20133 Milan, Italy.
[Celik, Oe.; Vasileiou, V.] CRESST, Greenbelt, MD 20771 USA.
[Celik, Oe.; Vasileiou, V.] Univ Maryland Baltimore Cty, Ctr Space Sci & Technol, Baltimore, MD 21250 USA.
[Celik, Oe.; Vasileiou, V.] Univ Maryland Baltimore Cty, Dept Phys, Baltimore, MD 21250 USA.
[Chekhtman, A.; Makeev, A.] George Mason Univ, Fairfax, VA 22030 USA.
[Cohen-Tanugi, J.; Farnier, C.; Nuss, E.; Pelassa, V.; Piron, F.] Univ Montpellier 2, CNRS, IN2P3, Lab Phys Theor & Astroparticules, Montpellier, France.
[Meurer, C.] Stockholm Univ, Dept Phys, SE-10691 Stockholm, Sweden.
[de Angelis, A.; Frailis, M.] Univ Udine, Dipartimento Fis, I-33100 Udine, Italy.
[de Angelis, A.; Frailis, M.] Ist Nazl Fis Nucl, Sez Trieste, Grp Collegato Udine, I-33100 Udine, Italy.
[Dingus, B. L.; Kippen, R. M.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA.
[Dumora, D.; Lemoine-Goumard, M.; Lott, B.; Parent, D.; Reposeur, T.] Ctr Etud Nucl Bordeaux Gradignan, UMR 5797, IN2P3, CNRS, F-33175 Gradignan, France.
[Dumora, D.; Lemoine-Goumard, M.; Lott, B.; Parent, D.; Reposeur, T.] Univ Bordeaux, UMR 5797, Ctr Etud Nucl Bordeaux Gradignan, F-33175 Gradignan, France.
[Fishman, G.] NASA, George C Marshall Space Flight Ctr, Huntsville, AL 35812 USA.
[Fukazawa, Y.; Katagiri, H.; Mizuno, T.; Ohsugi, T.; Takahashi, H.; Uehara, T.; Yamazaki, R.] Hiroshima Univ, Dept Phys Sci, Hiroshima 7398526, Japan.
[Gasparrini, D.] Sci Data Ctr, ASI, I-00044 Frascati, Roma, Italy.
[Gehrels, N.; McEnery, J. E.] Univ Maryland, Dept Phys, College Pk, MD 20742 USA.
[Gehrels, N.; McEnery, J. E.] Univ Maryland, Dept Astron, College Pk, MD 20742 USA.
[Granot, J.] Univ Hertfordshire, Ctr Astrophys Res, Hatfield AL10 9AB, Herts, England.
[Guillemot, L.] Max Planck Inst Radioastron, D-53121 Bonn, Germany.
[Hughes, R. E.; Sander, A.; Smith, P. D.; Stamatikos, M.; Winer, B. L.] Ohio State Univ, Dept Phys, Ctr Cosmol & Astroparticle Phys, Columbus, OH 43210 USA.
[Jackson, M. S.; McGlynn, S.; Ryde, F.; Ylinen, T.] Royal Inst Technol, Dept Phys, SE-10691 Stockholm, Sweden.
[Kataoka, J.] Waseda Univ, Shinjuku Ku, Tokyo 1698050, Japan.
[Kawai, N.] Tokyo Inst Technol, Dept Phys, Meguro, Tokyo 1528551, Japan.
[Kawai, N.] RIKEN, Inst Phys & Chem Res, Cosm Radiat Lab, Wako, Saitama 3510198, Japan.
[Knoedlseder, J.; Vilchez, N.] UPS, CNRS, Ctr Etud Spatiale Rayonnements, F-31028 Toulouse 4, France.
[Meegan, C.] Univ Space Res Assoc, Columbia, MD 21044 USA.
[Morselli, A.; Vitale, V.] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, I-00133 Rome, Italy.
[Norris, J. P.; Ormes, J. F.] Univ Denver, Dept Phys & Astron, Denver, CO 80208 USA.
[Ohno, M.] Japan Aerosp Explorat Agcy, Inst Space & Astronaut Sci, JAXA, Sagamihara, Kanagawa 2298510, Japan.
[Porter, T. A.; Ritz, S.; Sadrozinski, H. F. -W.; Parkinson, P. M. Saz; Schalk, T. L.; Ziegler, M.] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA.
[Porter, T. A.; Ritz, S.; Sadrozinski, H. F. -W.; Parkinson, P. M. Saz; Schalk, T. L.; Ziegler, M.] Univ Calif Santa Cruz, Dept Phys, Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA.
[Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria.
[Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria.
[Scargle, J. D.] NASA, Ames Res Ctr, Div Space Sci, Moffett Field, CA 94035 USA.
[Siskind, E. J.] NYCB Real Time Comp Inc, Lattingtown, NY 11560 USA.
[Suson, D. J.] Purdue Univ Calumet, Dept Chem & Phys, Hammond, IN 46323 USA.
[Torres, D. F.] ICREA, Barcelona, Spain.
[Tramacere, A.] CIFS, I-10133 Turin, Italy.
[Vitale, V.] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy.
[Wu, X. F.] J CPNPC, Nanjing 210093, Peoples R China.
[Wu, X. F.] Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China.
[Ylinen, T.] Univ Kalmar, Sch Pure & Appl Nat Sci, SE-39182 Kalmar, Sweden.
RP De Pasquale, M (reprint author), Univ Coll London, Mullard Space Sci Lab, Holmbury St Mary, Dorking RH5 6NT, Surrey, England.
EM mdp@mssl.ucl.ac.uk; mjp@mssl.ucl.ac.uk; Veronique.Pelassa@lpta.in2p3.fr;
toma@astro.psu.edu
RI giglietto, nicola/I-8951-2012; Starck, Jean-Luc/D-9467-2011; Thompson,
David/D-2939-2012; Curran, Peter/B-5293-2013; Tosti, Gino/E-9976-2013;
Stecker, Floyd/D-3169-2012; Harding, Alice/D-3160-2012; Gehrels,
Neil/D-2971-2012; McEnery, Julie/D-6612-2012; Baldini, Luca/E-5396-2012;
lubrano, pasquale/F-7269-2012; Morselli, Aldo/G-6769-2011; Nolan,
Patrick/A-5582-2009; Kuss, Michael/H-8959-2012; Rando,
Riccardo/M-7179-2013; Hays, Elizabeth/D-3257-2012; Johnson,
Neil/G-3309-2014; Reimer, Olaf/A-3117-2013; Funk, Stefan/B-7629-2015;
Johannesson, Gudlaugur/O-8741-2015; Gargano, Fabio/O-8934-2015; Loparco,
Francesco/O-8847-2015; Moskalenko, Igor/A-1301-2007; Mazziotta, Mario
/O-8867-2015; Sgro, Carmelo/K-3395-2016; Bissaldi,
Elisabetta/K-7911-2016; Wu, Xuefeng/G-5316-2015; Torres,
Diego/O-9422-2016;
OI giglietto, nicola/0000-0002-9021-2888; Starck,
Jean-Luc/0000-0003-2177-7794; Thompson, David/0000-0001-5217-9135;
Curran, Peter/0000-0003-3003-4626; lubrano,
pasquale/0000-0003-0221-4806; Morselli, Aldo/0000-0002-7704-9553;
Baldini, Luca/0000-0002-9785-7726; Reimer, Olaf/0000-0001-6953-1385;
Funk, Stefan/0000-0002-2012-0080; Johannesson,
Gudlaugur/0000-0003-1458-7036; Gargano, Fabio/0000-0002-5055-6395;
Loparco, Francesco/0000-0002-1173-5673; Moskalenko,
Igor/0000-0001-6141-458X; Mazziotta, Mario /0000-0001-9325-4672;
Bissaldi, Elisabetta/0000-0001-9935-8106; Wu,
Xuefeng/0000-0002-6299-1263; Axelsson, Magnus/0000-0003-4378-8785;
Moretti, Elena/0000-0001-5477-9097; Gasparrini,
Dario/0000-0002-5064-9495; Tramacere, Andrea/0000-0002-8186-3793;
Torres, Diego/0000-0002-1522-9065; Sgro', Carmelo/0000-0001-5676-6214;
Dingus, Brenda/0000-0001-8451-7450; Rando, Riccardo/0000-0001-6992-818X;
De Angelis, Alessandro/0000-0002-3288-2517; Frailis,
Marco/0000-0002-7400-2135; Caraveo, Patrizia/0000-0003-2478-8018;
Preece, Robert/0000-0003-1626-7335; Bastieri, Denis/0000-0002-6954-8862;
Omodei, Nicola/0000-0002-5448-7577; Pesce-Rollins,
Melissa/0000-0003-1790-8018
FU STFC
FX The Fermi LAT Collaboration acknowledges support from a number of
agencies and institutes for both development and the operation of the
LAT as well as scientific data analysis. These include NASA and DOE in
the United States, CEA/Irfu and IN2P3/CNRS in France, ASI and INFN in
Italy, MEXT, KEK, and JAXA in Japan, and the K.A. Wallenberg Foundation,
the Swedish Research Council and the National Space Board in Sweden.
Additional support from INAF in Italy and CNES in France for science
analysis during the operations phase is also gratefully acknowledged.
S.Z. acknowledges STFC support. This work used data supplied by the UK
Swift SDC at the University of Leicester.
NR 46
TC 93
Z9 93
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 FEB 1
PY 2010
VL 709
IS 2
BP L146
EP L151
DI 10.1088/2041-8205/709/2/L146
PG 6
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 551LD
UT WOS:000274209300012
ER
PT J
AU Chardonnet, P
Chechetkin, V
Titarchuk, L
AF Chardonnet, Pascal
Chechetkin, Valery
Titarchuk, Lev
TI On the pair-instability supernovae and gamma-ray burst phenomenon
SO ASTROPHYSICS AND SPACE SCIENCE
LA English
DT Article
DE Gamma ray: bursts; Stellar evolution; Supernovae
ID MONTE-CARLO SIMULATIONS; SHOCK WAVE; SPECTRA; STARS; AFTERGLOW;
COMPTONIZATION; GALAXY; MODEL; CORE; DETONATION
AB We present a model of a gamma-ray burst (GRB) related to "very massive" stars. In the framework of our model, the GRB phenomenon is a result of helium burning in degenerate conditions in a massive star (a parts per thousand(3)130 M (aS (TM))), in which the thermal nuclear burning occurs in the deflagration regime and has a pulsating temporal pattern. The shock runs away from the burning (reaction) zone, which leads to the development of a coronal outflow (jet-like) structure. In our scenario the GRB observable prompt fast rise and decay part can be a result of photon propagation through the hot corona (Comptonization photosphere) of the star. On the other hand, the GRB afterglow is a cooling phase of the expanding and outflowing envelope. Presumably, the X-ray part of the GRB emergent spectrum is formed due to upscattering of soft photons of outer layers of the star off hot coronal electrons, and thus it should have a specific shape of the Comptonization spectrum.
C1 [Chardonnet, Pascal] Univ Savoie, CNRS, LAPTH, F-74941 Annecy Le Vieux, France.
[Chechetkin, Valery] Russian Acad Sci, Keldysh Inst Appl Math IPM, Moscow 1250477, Russia.
[Titarchuk, Lev] USN, Res Lab, Washington, DC 20375 USA.
[Titarchuk, Lev] Univ Ferrara, Dipartmento Fis, I-44100 Ferrara, Italy.
[Titarchuk, Lev] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Titarchuk, Lev] George Mason, Fairfax, VA 22030 USA.
RP Chardonnet, P (reprint author), Univ Savoie, CNRS, LAPTH, BP 110, F-74941 Annecy Le Vieux, France.
EM chardonnet@lapp.in2p3.fr; lev.titarchuk@nrl.navy.mil
NR 50
TC 8
Z9 8
U1 0
U2 2
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0004-640X
J9 ASTROPHYS SPACE SCI
JI Astrophys. Space Sci.
PD FEB
PY 2010
VL 325
IS 2
BP 153
EP 161
DI 10.1007/s10509-009-0178-4
PG 9
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 540CE
UT WOS:000273307500002
ER
PT J
AU Sapsford, KE
Blanco-Canosa, JB
Dawson, PE
Medintz, IL
AF Sapsford, Kim E.
Blanco-Canosa, Juan B.
Dawson, Philip E.
Medintz, Igor L.
TI Detection of HIV-1 Specific Monoclonal Antibodies Using Enhancement of
Dye-Labeled Antigenic Peptides
SO BIOCONJUGATE CHEMISTRY
LA English
DT Article
ID RESONANCE ENERGY-TRANSFER; ENZYME-IMMUNOASSAY; MATRIX PROTEIN; P17;
BINDING; EXCITATION; BIOSENSOR; BEACONS; SENSORS; SERUM
AB A simple bifunctional colorimetric/fluorescent sensing assay is demonstrated for the detection of HIV-1 specific antibodies. This assay makes use of a short peptide sequence coupled to an environmentally sensitive dye that absorbs and emits in the visible portion of the spectrum. The core peptide sequence is derived from the highly antigenic six-residue epitope of the HIV-1 p17 protein and is situated adjacent to a terminal cysteine residue which enables site-specific fluorescent labeling with Cy3 cyanine dye. Interaction of the Cy3-labeled p17 peptide with monoclonal anti-p17 antibody resulted in an up to 4-fold increase in dye absorption and greater than 5-fold increase in fluorescent emission, yielding a limit of detection as low as 73 pM for the target antibody. This initial study demonstrates both proof-of-concept for this approach and suggests that the resulting sensor could potentially be used as a rapid screening method for HIV-1 infection while requiring minimal equipment and reagents. The potential for utilizing this assay in simple field-portable point-of-care and diagnostic devices is discussed.
C1 [Medintz, Igor L.] USN, Res Lab, Ctr BioMol Sci & Engn, Washington, DC 20375 USA.
[Sapsford, Kim E.] US FDA, Off Sci & Engn Labs, Div Biol, Silver Spring, MD 20993 USA.
[Blanco-Canosa, Juan B.; Dawson, Philip E.] Scripps Res Inst, Dept Cell Biol, La Jolla, CA 92037 USA.
[Blanco-Canosa, Juan B.; Dawson, Philip E.] Scripps Res Inst, Dept Chem, La Jolla, CA 92037 USA.
[Blanco-Canosa, Juan B.; Dawson, Philip E.] Scripps Res Inst, Skaggs Inst Chem Biol, La Jolla, CA 92037 USA.
RP Medintz, IL (reprint author), USN, Res Lab, Ctr BioMol Sci & Engn, Code 6900, Washington, DC 20375 USA.
EM Igor.Medintz@nrl.navy.mil
FU B Directorate/Physical S&T Division DTRA/ARO; ONR; NRL; NRL-NSI; Marie
Curie Foundation
FX The authors thank Dr. J. Golden (NRL/CBMSE) for the digital photograph
shown in Figure 3. This work was supported in part by CDRWOSEL/Division
of Biology funds. The mention of commercial products, their sources, or
their use in connection with material reported herein is not to be
construed as either an actual or implied endorsement of such products by
the Department of Health and Human Services. IM acknowledges the CB
Directorate/Physical S&T Division DTRA/ARO, ONR, NRL, and the NRL-NSI
for financial support. J.B.B-C. gratefully acknowledges the Marie Curie
Foundation for a postdoctoral fellowship.
NR 28
TC 13
Z9 13
U1 1
U2 20
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1043-1802
J9 BIOCONJUGATE CHEM
JI Bioconjugate Chem.
PD FEB
PY 2010
VL 21
IS 2
BP 393
EP 398
DI 10.1021/bc9003712
PG 6
WC Biochemical Research Methods; Biochemistry & Molecular Biology;
Chemistry, Multidisciplinary; Chemistry, Organic
SC Biochemistry & Molecular Biology; Chemistry
GA 555MG
UT WOS:000274514300025
PM 20058910
ER
PT J
AU L'Esperance, JO
Marguet, CG
Walters, RC
Sung, JC
Auge, BK
Stroup, SP
L'Esperance, AH
Albala, DM
AF L'Esperance, James O.
Marguet, Charles G.
Walters, R. Chanc
Sung, Jeffrey C.
Auge, Brian K.
Stroup, Sean P.
L'Esperance, Audry H.
Albala, David M.
TI Do nonspecific deep corticomedullary sutures performed during partial
nephrectomy adequately control major vascular and collecting system
injury?
SO BJU INTERNATIONAL
LA English
DT Article
DE partial nephrectomy; laparoscopy; renal surgery; porcine model
ID LAPAROSCOPIC PARTIAL NEPHRECTOMY; NEPHRON-SPARING SURGERY; RENAL-CELL
CARCINOMA; SEALANT; HEMOSTASIS; EXPERIENCE; OUTCOMES; GLUES
AB To critically evaluate the effectiveness of placing nonspecific deep corticomedullary sutures in the setting of major vascular and collecting system injury during laparoscopic partial nephrectomy (LPN). We also aimed to evaluate the incidence of ischaemic injury to the remaining renal remnant because of these sutures, as many laparoscopic centres have adopted this practice.
We performed open PN on eight porcine kidneys. Both the artery and vein were clamped. The ureter was transected and tied around an angiocatheter for evaluating collecting system integrity both before and after corticomedullary suturing. The renal artery was cannulated for angiography before and after the corticomedullary suturing. The rate of bleeding was also assessed before and after corticomedullary suturing.
There was marked arterial bleeding and large collecting system injury induced in all kidneys. Two of the eight renal units continued to have significant arterial bleeding after the deep corticomedullary sutures were placed. All of the eight units had at least a small urinary leak after suturing, with three having medium-to-large leaks. In four of the renal units, there were major segmental vessels occluded by the sutures, as detected by angiography.
The practice of placing nonspecific deep corticomedullary sutures, during PN, may not adequately control major vascular and collecting system injury. In addition, segmental vessels supplying remnant renal tissue are often affected; thereby further compromising function because of devascularization. The search for the best technique for LPN continues.
C1 [Sung, Jeffrey C.; Albala, David M.] Duke Univ, Med Ctr, Dept Surg, Div Urol, Durham, NC 27710 USA.
[L'Esperance, James O.; Marguet, Charles G.; Walters, R. Chanc; Auge, Brian K.; Stroup, Sean P.; L'Esperance, Audry H.] USN, San Diego Med Ctr, Dept Urol, San Diego, CA 92134 USA.
RP L'Esperance, JO (reprint author), USN, San Diego Med Ctr, Dept Urol, Bldg 3,Suite 200,34800 Bob Wilson Dr, San Diego, CA 92134 USA.
EM james.lesperance@med.navy.mil
NR 19
TC 3
Z9 4
U1 0
U2 0
PU WILEY-BLACKWELL
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 1464-4096
J9 BJU INT
JI BJU Int.
PD FEB
PY 2010
VL 105
IS 3
BP 411
EP 415
DI 10.1111/j.1464-410X.2009.08710.x
PG 5
WC Urology & Nephrology
SC Urology & Nephrology
GA 544KW
UT WOS:000273656600020
PM 19549115
ER
PT J
AU Cranston, MM
Ryan, MAK
Smith, TC
Sevick, CJ
Brodine, SK
AF Cranston, Marcus M.
Ryan, Margaret A. K.
Smith, Tyler C.
Sevick, Carter J.
Brodine, Stephanie K.
TI Hypothyroidism among military infants born in countries of varied iodine
nutrition status
SO BMC ENDOCRINE DISORDERS
LA English
DT Article
ID CONGENITAL HYPOTHYROIDISM; UNITED-STATES; URINARY IODINE;
SCREENING-PROGRAM; NATIONAL-HEALTH; RISK-FACTORS; PREGNANCY; PREVALENCE;
ETHNICITY
AB Background: Iodine deficiency is a global problem representing the most common preventable cause of mental retardation. Recently, the impact of subtle deficiencies in iodine intake on children and pregnant women has been questioned. This study was designed to compare hypothyroidism among infants born to US military families in countries of varied iodine nutrition status.
Methods: A cohort design was used to analyze data from the Department of Defense Birth and Infant Health Registry for infants born in 2000-04 (n = 447,691). Hypothyroidism was defined using ICD-9-CM codes from the first year of life (n = 698). The impact of birth location on hypothyroidism was assessed by comparing rates in Germany, Japan, and US territories with the United States, while controlling for infant gender, plurality, gestational age, maternal age, maternal military status, and military parent's race/ethnicity.
Results: Hypothyroidism did not vary by birth location with adjusted odds ratios (OR) as follows: Germany (OR 0.82, [95% CI 0.50, 1.35]), Japan (OR 0.67, [95% CI 0.37, 1.22]), and US territories (OR 1.29, [95% CI 0.57, 2.89]). Hypothyroidism was strongly associated with preterm birth (OR 5.44, [95% CI 4.60, 6.42]). Hypothyroidism was also increased among infants with civilian mothers (OR 1.24, [95% CI 1.00, 1.54]), and older mothers, especially ages 40 years and older (OR 2.09, [95% CI 1.33, 3.30]).
Conclusions: In this study, hypothyroidism in military-dependent infants did not vary by birth location, but was associated with other risk factors, including preterm birth, civilian maternal status, and advanced maternal age.
C1 [Smith, Tyler C.; Sevick, Carter J.] USN, Hlth Res Ctr, San Diego, CA 92152 USA.
[Cranston, Marcus M.] Keesler Med Ctr, Keesler AFB, MS USA.
[Ryan, Margaret A. K.] USN Hosp, Camp Pendleton, CA USA.
[Brodine, Stephanie K.] San Diego State Univ, San Diego, CA 92182 USA.
RP Smith, TC (reprint author), USN, Hlth Res Ctr, San Diego, CA 92152 USA.
EM tyler.c.smith@med.navy.mil
FU Department of Defense [60504]
FX This represents report 08-16, supported by the Department of Defense,
under work unit no. 60504. 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, or the US Government. This research has
been conducted in compliance with all applicable federal regulations
governing the protection of human subjects in research (Protocol
NHRC.2007.0026).
NR 24
TC 1
Z9 1
U1 0
U2 4
PU BIOMED CENTRAL LTD
PI LONDON
PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND
SN 1472-6823
J9 BMC ENDOCR DISORD
JI BMC Endocr. Disord.
PD FEB 1
PY 2010
VL 10
AR 2
DI 10.1186/1472-6823-10-2
PG 6
WC Endocrinology & Metabolism
SC Endocrinology & Metabolism
GA 851KV
UT WOS:000297269200001
PM 20205833
ER
PT J
AU Long, JW
Laskoski, M
Keller, TM
Pettigrew, KA
Zimmerman, TN
Qadri, SB
Peterson, GW
AF Long, Jeffrey W.
Laskoski, Matthew
Keller, Teddy M.
Pettigrew, Katherine A.
Zimmerman, T'revor N.
Qadri, Syed B.
Peterson, Gregory W.
TI Selective-combustion purification of bulk carbonaceous solids to produce
graphitic nanostructures
SO CARBON
LA English
DT Article
ID HYDROGEN STORAGE; NANOTUBE FORMATION; IN-SITU; NANOPARTICLE
COMPOSITIONS; CATALYTIC GRAPHITIZATION; RAMAN-SPECTROSCOPY; OXIDATION;
ENERGY; NANOFIBERS; SPECTRA
AB We demonstrate the use of simple thermal oxidation processes to purify bulk carbon composites produced from thermosets, which were formulated from precursor compositions containing a melt-processible organometallic Ni catalyst in an excess of carbon source. The as-pyrolyzed carbonaceous solids comprise Ni nanoparticles and interpenetrating amorphous and graphitic carbon domains, where the fraction of crystalline carbon is determined primarily by the carbonization temperature. We exploit the adventitious amorphous carbon phase as a pore-forming agent, which is subsequently removed by selective combustion, exposing the embedded graphitic nanostructures and associated metal catalyst nanoparticles, while still retaining the macroscopic dimensions of the initial thermoset polymeric solid. The pore network formed by removal of the amorphous carbon facilitates the mass transport of gas-phase molecules, such as ammonia, to the internal surfaces of the purified carbon solid. The ability to produce nanostructured. graphitic carbons in bulk solid forms using simple processing methods will facilitate their development for applications ranging from electrochemical energy storage to gas sorption/filtration. Published by Elsevier Ltd.
C1 [Long, Jeffrey W.; Laskoski, Matthew; Keller, Teddy M.; Pettigrew, Katherine A.; Zimmerman, T'revor N.] USN, Res Lab, Div Chem, Washington, DC 20375 USA.
[Qadri, Syed B.] USN, Res Lab, Div Mat Sci & Technol, Washington, DC 20375 USA.
[Peterson, Gregory W.] USA, Res Dev & Engn Command, Edgewood Chem Biol Ctr, Res & Technol Directorate,CBR Filtrat Team, Aberdeen Proving Ground, MD 21010 USA.
RP Long, JW (reprint author), USN, Res Lab, Div Chem, Code 6170, Washington, DC 20375 USA.
EM jeffrey.long@nrl.navy.mil
FU US Office of Naval Research; Defense Threat Reduction Agency
FX Financial support for this research was provided by the US Office of
Naval Research and the Defense Threat Reduction Agency. Bryan Schindler
(SAIC, Abingdon, MD) per-formed the ammonia-breakthrough measurements.
NR 45
TC 16
Z9 16
U1 3
U2 22
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0008-6223
J9 CARBON
JI Carbon
PD FEB
PY 2010
VL 48
IS 2
BP 501
EP 508
DI 10.1016/j.carbon.2009.09.068
PG 8
WC Chemistry, Physical; Materials Science, Multidisciplinary
SC Chemistry; Materials Science
GA 532QK
UT WOS:000272764300025
ER
PT J
AU Blacksell, SD
Jenjaroen, K
Phetsouvanh, R
Wuthiekanun, V
Day, NPJ
Newton, PN
Ching, WM
AF Blacksell, Stuart D.
Jenjaroen, Kemajittra
Phetsouvanh, Rattanaphone
Wuthiekanun, Vanaporn
Day, Nicholas P. J.
Newton, Paul N.
Ching, Wei-Mei
TI Accuracy of AccessBio Immunoglobulin M and Total Antibody Rapid
Immunochromatographic Assays for the Diagnosis of Acute Scrub Typhus
Infection
SO CLINICAL AND VACCINE IMMUNOLOGY
LA English
DT Article
ID POLYMERASE-CHAIN-REACTION; RICKETTSIA-TSUTSUGAMUSHI;
ORIENTIA-TSUTSUGAMUSHI; DENGUE; THAILAND; LAOS
AB Using archived samples, we assessed the diagnostic capacity of a rapid immunochromatographic test (ICT) for the detection of Orientia tsutsugamushi IgM and total antibodies to aid with the diagnosis of acute scrub typhus infection in febrile patients in Laos. The sensitivity and the specificity of the ICT for the detection of IgM were 96.8% (121/125 samples; 95% confidence interval [CI], 92.1 to 99.1%) and 93.3% (98/105 samples; 95% CI, 86.7 to 97.3%), respectively. For the detection of total antibodies, the sensitivity was 97.6% (122/125 samples; 95% CI, 93.1 to 99.5%), but the specificity was much lower, at 71.4% (75/105 samples; 95% CI, 61.8 to 79.8%).
C1 [Blacksell, Stuart D.; Jenjaroen, Kemajittra; Wuthiekanun, Vanaporn; Day, Nicholas P. J.] Mahidol Univ, Fac Trop Med, Oxford Trop Med Res Unit MORU, Bangkok 10400, Thailand.
[Blacksell, Stuart D.; Day, Nicholas P. J.; Newton, Paul N.] Univ Oxford, Ctr Trop Med, Churchill Hosp, Oxford OX3 7LJ, England.
[Blacksell, Stuart D.; Phetsouvanh, Rattanaphone; Day, Nicholas P. J.; Newton, Paul N.] Mahosot Hosp, Wellcome Trust Mahosot Hosp, Oxford Trop Med Res Collaborat, Microbiol Lab, Viangchan, Laos.
[Ching, Wei-Mei] USN, Med Res Ctr, Viral & Rickettsial Dis Dept, Infect Dis Directorate, Silver Spring, MD USA.
RP Blacksell, SD (reprint author), Mahidol Univ, Fac Trop Med, Oxford Trop Med Res Unit MORU, 420-6 Rajvithi Rd, Bangkok 10400, Thailand.
EM stuart@tropmedres.ac
OI Blacksell, Stuart/0000-0001-6576-726X
FU Minister of Health, Ponmek Dalaloy; Curative Department, Ministry of
Health, Sommone Phousavath; Wellcome Trust
FX We are very grateful to all the patients who participated in this study.
We acknowledge the doctors at the Mahosot Hopsital (Laos) and the staff
of the Microbiology Laboratory for processing the specimens. We are very
grateful to the Minister of Health, Ponmek Dalaloy, and the director of
the Curative Department, Ministry of Health, Sommone Phousavath, for
their support for this study, which was part of the Wellcome
Trust-Mahosot Hospital-Oxford Tropical Medicine Research Collaboration
funded by the Wellcome Trust of Great Britain. We are grateful to Sunee
Chueasuwanachai and the nursing staff at the Udorn Thani General Hospial
(Thailand) for collecting the samples from patients with leptospirosis.
We also thank Arjen Dondorp and Kamolrat Silamut for providing the
samples from patients with malaria. We thank Robert Gibbons and Richard
Jarman of the Armed Forces Research Institute for Medical Sciences,
Bangkok, Thailand, for performing the dengue diagnostic assays.; This
study was funded by the Wellcome Trust of Great Britain.
NR 10
TC 11
Z9 11
U1 0
U2 0
PU AMER SOC MICROBIOLOGY
PI WASHINGTON
PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA
SN 1556-6811
J9 CLIN VACCINE IMMUNOL
JI Clin. Vaccine Immunol.
PD FEB
PY 2010
VL 17
IS 2
BP 263
EP 266
DI 10.1128/CVI.00448-08
PG 4
WC Immunology; Infectious Diseases; Microbiology
SC Immunology; Infectious Diseases; Microbiology
GA 549WN
UT WOS:000274085200009
PM 20016046
ER
PT J
AU Maves, RC
Ore, RMC
Porter, KR
Kochel, TJ
AF Maves, Ryan C.
Castillo Ore, Roger M.
Porter, Kevin R.
Kochel, Tadeusz J.
TI Immunogenicity of a Psoralen-Inactivated Dengue Virus Type 1 Vaccine
Candidate in Mice
SO CLINICAL AND VACCINE IMMUNOLOGY
LA English
DT Article
ID WAVELENGTH ULTRAVIOLET-LIGHT; PHOTOCHEMICAL TREATMENT; AMOTOSALEN; UV
AB We evaluated a novel psoralen-inactivated dengue virus type 1 (DENV-1) vaccine candidate in Mus musculus mice. Mice received intradermal alum or 5 to 10 ng of psoralen-inactivated virus. Anti-DENV-1 neutralizing antibody was detectable in 10/11 mice receiving a 10-ng dose at 90 days. Psoralen-inactivated DENV-1 is immunogenic in mice.
C1 [Maves, Ryan C.; Castillo Ore, Roger M.; Kochel, Tadeusz J.] USN, Med Res Ctr Detachment, Lima, Peru.
[Porter, Kevin R.] USN, Med Res Ctr, Silver Spring, MD USA.
RP Maves, RC (reprint author), USN, Res Ctr Detachment, Unit 3230,Box 0331, DPO, AA 34031 USA.
EM Ryan.Maves@med.navy.mil
FU Military Infectious Diseases Research Program [S0082_06_NM]
FX This work was funded by work unit number S0082_06_NM, Military
Infectious Diseases Research Program.
NR 12
TC 11
Z9 12
U1 0
U2 3
PU AMER SOC MICROBIOLOGY
PI WASHINGTON
PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA
SN 1556-6811
J9 CLIN VACCINE IMMUNOL
JI Clin. Vaccine Immunol.
PD FEB
PY 2010
VL 17
IS 2
BP 304
EP 306
DI 10.1128/CVI.00353-09
PG 3
WC Immunology; Infectious Diseases; Microbiology
SC Immunology; Infectious Diseases; Microbiology
GA 549WN
UT WOS:000274085200015
PM 20007362
ER
PT J
AU Crum-Cianflone, N
Collins, G
Medina, S
Asher, D
Campin, R
Bavaro, M
Hale, B
Hames, C
AF Crum-Cianflone, Nancy
Collins, Gary
Medina, Sheila
Asher, Dean
Campin, Richard
Bavaro, Mary
Hale, Braden
Hames, Charles
TI Prevalence and Factors Associated With Liver Test Abnormalities Among
Human Immunodeficiency Virus-Infected Persons
SO CLINICAL GASTROENTEROLOGY AND HEPATOLOGY
LA English
DT Article
ID UNITED-STATES; AMINOTRANSFERASE LEVELS; HIV-INFECTION; RISK-FACTORS;
DISEASE; MORTALITY; PREDICTORS; MECHANISMS; TOXICITY; ENZYMES
AB BACKGROUND & AIMS: Liver disease is a major cause of morbidity and mortality among human immunodeficiency virus (HIV)-infected persons. We evaluated the prevalence, etiology, and factors associated with liver dysfunction in patients during the highly active antiretroviral therapy era. METHODS: We performed liver tests (baseline and after a 6-month follow-up period) in HIV-infected patients treated at a large clinic. Comprehensive laboratory and ultrasound analyses were performed. Factors associated with liver test abnormalities were assessed using multivariate logistic regression models. RESULTS: Eighty of 299 HIV-positive patients (27%) had abnormal liver test results during the 6-month study period. The majority of abnormalities were grade I. Of those with liver test abnormalities, the most common diagnosis was nonalcoholic fatty liver disease (30%), followed by excessive alcohol use (13%), chronic hepatitis B (9%), chronic active hepatitis C (5%), and other (hemochromatosis and autoimmune hepatitis, 2%); 8 participants (10%) had more than I diagnosis. In total, 39 HIV patients with abnormal liver test results (49%) had a defined underlying liver disease. Despite laboratory tests and ultrasound examination, 41 abnormal liver test results (51%) were unexplained. Multivariate analyses of this group found that increased total cholesterol levels (odds ratio, 1.6 per 40-mg/dL increase; P = .01) were associated with liver abnormalities. CONCLUSIONS: Liver test abnormalities are common among HIV patients during the highly active antiretroviral therapy era. The most common diagnosis was nonalcoholic fatty liver disease. Despite laboratory and radiologic investigations into the cause of liver dysfunction, 51% were unexplained, but might be related to unrecognized fatty liver disease.
C1 [Crum-Cianflone, Nancy] USN, San Diego Med Ctr, Clin Invest Dept KCA, HIV Clin, San Diego, CA 92134 USA.
[Asher, Dean; Campin, Richard] USN, San Diego Med Ctr, Dept Radiol, San Diego, CA 92152 USA.
[Hames, Charles] USN, San Diego Med Ctr, Dept Gastroenterol, San Diego, CA 92152 USA.
Uniformed Serv Univ Hlth Sci, Infect Dis Clin Res Program, Bethesda, MD 20814 USA.
[Collins, Gary] Univ Minnesota, Sch Publ Hlth, Div Biostat, Minneapolis, MN 55455 USA.
RP Crum-Cianflone, N (reprint author), USN, San Diego Med Ctr, Clin Invest Dept KCA, HIV Clin, 34800 Bob Wilson Dr,Suite 5, San Diego, CA 92134 USA.
EM nancy.crum@med.navy.mil
FU Uniformed Services University of the Health Sciences, Bethesda, MD;
National Institute of Allergy and Infectious Diseases, National
Institutes of Health (NIH) [Y1-AI-5072]
FX Support for this work was provided by the Infectious Disease Clinical
Research Program (IDCRP), a Department of Defense (DoD) program executed
through the Uniformed Services University of the Health Sciences,
Bethesda, MD. This projected 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 30
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Z9 21
U1 0
U2 0
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 1542-3565
J9 CLIN GASTROENTEROL H
JI Clin. Gastroenterol. Hepatol.
PD FEB
PY 2010
VL 8
IS 2
BP 183
EP 191
DI 10.1016/j.cgh.2009.09.025
PG 9
WC Gastroenterology & Hepatology
SC Gastroenterology & Hepatology
GA 592ZP
UT WOS:000277421000019
PM 19800985
ER
PT J
AU Chun, HM
Fieberg, AM
Hullsiek, KH
Lifson, AR
Crum-Cianflone, NF
Weintrob, AC
Ganesan, A
Barthel, RV
Bradley, WP
Agan, BK
Landrum, ML
AF Chun, Helen M.
Fieberg, Ann M.
Hullsiek, Katherine Huppler
Lifson, Alan R.
Crum-Cianflone, Nancy F.
Weintrob, Amy C.
Ganesan, Anuradha
Barthel, Robert V.
Bradley, William P.
Agan, Brian K.
Landrum, Michael L.
CA HIV Working Grp
TI Epidemiology of Hepatitis B Virus Infection in a US Cohort of
HIV-Infected Individuals during the Past 20 Years
SO CLINICAL INFECTIOUS DISEASES
LA English
DT Article
ID HUMAN-IMMUNODEFICIENCY-VIRUS; ACTIVE ANTIRETROVIRAL THERAPY;
UNITED-STATES; RISK-FACTORS; C VIRUS; HEPATOTOXICITY; PREVALENCE;
RECOMMENDATIONS; ANTIBODIES; MANAGEMENT
AB Background. The epidemiologic trends of hepatitis B virus (HBV) infection in human immunodeficiency virus (HIV)-infected patients over the past 20 years are largely unknown.
Methods. Prevalence and risk factors for HBV infection overall, at the time of HIV infection, and after HIV infection were examined in an ongoing observational HIV cohort study. Risk factors for HBV infection at the time of diagnosis of HIV infection were evaluated using logistic regression, and risk of incident HBV infection after diagnosis of HIV infection was evaluated using Cox proportional hazards models.
Results. Of the 2769 evaluable participants, 1078 (39%) had HBV infection, of whom 117 (11%) had chronic HBV infection. The yearly cross-sectional prevalence of HBV infection decreased from a peak of 49% in 1995 to 36% in 2008 (P < .001). The prevalence of HBV infection at the time of diagnosis of HIV infection decreased during 1989-2008 from 34% to 9% (P < .001). The incidence of HBV infection after diagnosis of HIV infection decreased from 4.0 cases per 100 person-years during the pre-highly active antiretroviral therapy (HAART) era to 1.1 cases per 100 person-years during the HAART era (P < .001); however, this incidence remained unchanged during 2000-2008 (P = .49), with 120% of HBV infections occurring after HIV infection being chronic. Decreased risk of HBV infection after diagnosis of HIV infection was associated with higher CD4 cell count and the use of HBV-active HAART. Receipt of >= 1 dose of HBV vaccine was not associated with reduced risk of HBV infection after diagnosis of HIV infection.
Conclusions. Although the burden of HBV infection overall is slowly decreasing among HIV-infected individuals, the persistent rate of HBV infection after diagnosis of HIV infection raises concern that more-effective prevention strategies may be needed to significantly reduce the prevalence of HBV infection in this patient population.
C1 [Chun, Helen M.] Naval Hlth Res Ctr, San Diego, CA USA.
[Crum-Cianflone, Nancy F.] Naval Med Ctr San Diego, San Diego, CA USA.
[Fieberg, Ann M.; Hullsiek, Katherine Huppler; Lifson, Alan R.] Univ Minnesota, Minneapolis, MN USA.
[Fieberg, Ann M.; Hullsiek, Katherine Huppler; Lifson, Alan R.; Crum-Cianflone, Nancy F.; Weintrob, Amy C.; Ganesan, Anuradha; Bradley, William P.; Agan, Brian K.; Landrum, Michael L.] Uniformed Serv Univ Hlth Sci, Infect Dis Clin Res Program, Bethesda, MD 20814 USA.
[Ganesan, Anuradha] Natl Naval Med Ctr, Bethesda, MD USA.
[Weintrob, Amy C.] Walter Reed Army Med Ctr, Washington, DC 20307 USA.
[Barthel, Robert V.] Naval Med Ctr Portsmouth, Portsmouth, VA USA.
[Bradley, William P.; Landrum, Michael L.] San Antonio Mil Med Ctr, Ft Sam Houston, TX USA.
RP Landrum, ML (reprint author), Brooke Army Med Ctr, MCHE MDI, 3851 Roger Brooke Dr, Ft Sam Houston, TX 78234 USA.
EM mlandrum@idcrp.org
RI Marconi, Vincent/N-3210-2014;
OI Marconi, Vincent/0000-0001-8409-4689; Agan, Brian/0000-0002-5114-1669
FU Uniformed Services University of the Health Sciences (USUHS); Department
of Defence; Henry M. Jackson Foundation; National Institutes of Health,
National Institute of Allergy and Infectious Diseases [HU0001-05-2-0011]
FX Infectious Disease Clinical Research Program (IDCRP) of the Uniformed
Services University of the Health Sciences (USUHS). The IDCRP is a
Department of Defence tri-service program executed through USUHS and the
Henry M. Jackson Foundation for the Advancement of Military Medicine, in
collaboration with Health and Human Services, National Institutes of
Health, National Institute of Allergy and Infectious Diseases, Division
of Clinical Research through Interagency Agreement HU0001-05-2-0011.
NR 38
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U1 0
U2 1
PU UNIV CHICAGO PRESS
PI CHICAGO
PA 1427 E 60TH ST, CHICAGO, IL 60637-2954 USA
SN 1058-4838
J9 CLIN INFECT DIS
JI Clin. Infect. Dis.
PD FEB 1
PY 2010
VL 50
IS 3
BP 426
EP 436
DI 10.1086/649885
PG 11
WC Immunology; Infectious Diseases; Microbiology
SC Immunology; Infectious Diseases; Microbiology
GA 542NG
UT WOS:000273500300019
PM 20047484
ER
PT J
AU Breslow, LA
Trafton, JG
McCurry, JM
Ratwani, RM
AF Breslow, Leonard A.
Trafton, J. Gregory
McCurry, J. Malcolm
Ratwani, Raj M.
TI An Algorithm for Generating Color Scales for Both Categorical and
Ordinal Coding
SO COLOR RESEARCH AND APPLICATION
LA English
DT Article
DE color coding; color order systems; color categorization; visualizations;
displays; computer graphics
ID VISUAL-SEARCH; COMPLEX VISUALIZATIONS; DISPLAYS; GRAPH; MAPS;
CHROMATICITY; INFORMATION; BRIGHTNESS; MECHANISMS; UNIVARIATE
AB Previous research has shown multihue scales to be well-suited to code categorical features and shown lightness scales to be well-suited to code ordinal quanti. ties. We introduce an algorithm, Motley, that produces color scales varying in both hue and lightness, intended to be effective for both categorical and ordinal coding, allowing users to determine both absolute and relative quantities efficiently and accurately. The algorithm first determines the lightnesses of scale colors to maximize perceived lightness differences and establish the lightness ordering, generating separate search spaces for each scale position. It then selects hues by heuristic search to maximize the discriminability of the scale. It produces scales that are ordered with respect to lightness but unordered with respect to hue and thus more discriminable than typical multihue lightness scales. In an experimental evaluation on human subjects, Motley's scales enabled accurate judgments of relative quantity, with response times superior to unordered multihue scales and comparable to ordered lightness scales, and enabled accuracy and speed of judgments of absolute quantity superior to lightness scales and comparable to multihue scales. (dagger)Published 2009 Wiley Periodicals, Inc. Col Res Appl, 35, 18-28, 2010; Published online 17 November 2009 in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/col.20559
C1 [Breslow, Leonard A.; Trafton, J. Gregory; McCurry, J. Malcolm; Ratwani, Raj M.] USN, Res Lab, Washington, DC 20375 USA.
[Ratwani, Raj M.] George Mason Univ, Fairfax, VA 22030 USA.
RP Breslow, LA (reprint author), USN, Res Lab, Code 5515,4555 Overlook Ave,SW, Washington, DC 20375 USA.
EM len.breslow@nrl.navy.mil
FU US Office of Naval Research [N0001405WX2011, N0001405WX30020]
FX Contract grant sponsor: US Office of Naval Research;; contract grant
numbers: N0001405WX2011, N0001405WX30020.
NR 51
TC 5
Z9 5
U1 2
U2 2
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0361-2317
EI 1520-6378
J9 COLOR RES APPL
JI Color Res. Appl.
PD FEB
PY 2010
VL 35
IS 1
BP 18
EP 28
DI 10.1002/col.20559
PG 11
WC Engineering, Chemical
SC Engineering
GA 541KH
UT WOS:000273413300002
ER
PT J
AU Satter, EK
AF Satter, Elizabeth K.
TI The Role of a Dermatologist on Military Humanitarian Missions
SO CUTIS
LA English
DT Article
AB The US military in conjunction with allied military services and nongovernmental organizations have embarked on various humanitarian missions to underserved areas worldwide. These missions illustrate what interoperability between nations can accomplish. Dermatologists involved with humanitarian missions encounter many conditions rarely seen in developed countries and learn to practice general dermatology with limited resources in austere environments. Cutis. 2010;85:85-89
C1 USN, Med Ctr, Dept Dermatol & Pathol, San Diego, CA 92134 USA.
RP Satter, EK (reprint author), USN, Med Ctr, Dept Dermatol & Pathol, 34520 Bob Wilson Dr,Ste 300, San Diego, CA 92134 USA.
EM elizabeth.satter@med.navy.mil
NR 6
TC 0
Z9 0
U1 0
U2 0
PU QUADRANT HEALTHCOM INC
PI PARSIPPANY
PA 7 CENTURY DRIVE, STE 302, PARSIPPANY, NJ 07054-4603 USA
SN 0011-4162
J9 CUTIS
JI Cutis
PD FEB
PY 2010
VL 85
IS 2
BP 85
EP 89
PG 5
WC Dermatology
SC Dermatology
GA 560NZ
UT WOS:000274910700006
PM 20349682
ER
PT J
AU McLay, RN
McBrien, C
Wiederhold, MD
Wiederhold, BK
AF McLay, Robert N.
McBrien, Colleen
Wiederhold, Mark D.
Wiederhold, Brenda K.
TI Exposure Therapy with and without Virtual Reality to Treat PTSD while in
the Combat Theater: A Parallel Case Series
SO CYBERPSYCHOLOGY BEHAVIOR AND SOCIAL NETWORKING
LA English
DT Article
ID PSYCHOMETRIC PROPERTIES; MENTAL-HEALTH; STRESS
AB Exposure therapy (ET) has been observed to be an effective modality for the treatment of combat-related posttraumatic stress disorder (PTSD). Recently, efforts have been made to use virtual reality (VR) to enhance outcome with modes of ET. How such therapy applies to service members who are facing the reality of a combat deployment has been unknown. This case series documents the first use of VR-based therapy to the treatment of PTSD in a combat theater. Results of therapy are reported from a mental health clinic in Camp Fallujah, Iraq. Combat PTSD constituted a relatively small percentage of overall mental health patients seen. Those who did present with PTSD were offered VR-based ET or traditional ET. Patients who received either treatment modality showed significant gains, and no service member in treatment had to be medically evacuated because of ongoing PTSD symptoms. This demonstrates that ET, with or without the use of VR, can be an effective means of helping service members with mental health issues while they serve in theater.
C1 [McLay, Robert N.] USN, Med Ctr San Diego, Dept Mental Hlth, San Diego, CA 92134 USA.
[McBrien, Colleen] Marine Corp Base Camp Pendleton, Wounded Warrior Dept, Camp Pendleton, CA USA.
[Wiederhold, Mark D.; Wiederhold, Brenda K.] Virtual Real Med Ctr, San Diego, CA USA.
RP McLay, RN (reprint author), USN, Med Ctr San Diego, Dept Mental Hlth, 34800 Bob Wilson Dr, San Diego, CA 92134 USA.
EM robert.mclay@med.navy.mil
NR 18
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Z9 14
U1 1
U2 14
PU MARY ANN LIEBERT INC
PI NEW ROCHELLE
PA 140 HUGUENOT STREET, 3RD FL, NEW ROCHELLE, NY 10801 USA
SN 2152-2715
J9 CYBERPSYCH BEH SOC N
JI Cyberpsychology Behav. Soc. Netw.
PD FEB
PY 2010
VL 13
IS 1
BP 37
EP 42
DI 10.1089/cyber.2009.0346
PG 6
WC Psychology, Social
SC Psychology
GA 601BZ
UT WOS:000278034300006
PM 20528291
ER
PT J
AU Spira, JL
Johnston, S
McLay, R
Popovic, S
Russoniello, C
Wood, D
AF Spira, James L.
Johnston, Scott
McLay, Robert
Popovic, Sinisa
Russoniello, Carmen
Wood, Dennis
TI Expert Panel: Future Directions of Technological Advances in Prevention,
Assessment, and Treatment for Military Deployment Mental Health
SO CYBERPSYCHOLOGY BEHAVIOR AND SOCIAL NETWORKING
LA English
DT Editorial Material
C1 [Spira, James L.] RTI Int, San Diego, CA USA.
[Johnston, Scott; McLay, Robert] USN, San Diego Med Ctr, Dept Mental Hlth, San Diego, CA USA.
[Popovic, Sinisa] Univ Zagreb, Fac Elect Engn & Comp, Zagreb 41000, Croatia.
[Russoniello, Carmen] E Carolina Univ, Greenville, NC USA.
[Wood, Dennis] Virtual Real Med Ctr, San Diego, CA USA.
RP Spira, JL (reprint author), RTI Int, San Diego, CA USA.
EM jimspira@aol.com
NR 0
TC 4
Z9 4
U1 0
U2 1
PU MARY ANN LIEBERT INC
PI NEW ROCHELLE
PA 140 HUGUENOT STREET, 3RD FL, NEW ROCHELLE, NY 10801 USA
SN 2152-2715
J9 CYBERPSYCH BEH SOC N
JI Cyberpsychology Behav. Soc. Netw.
PD FEB
PY 2010
VL 13
IS 1
BP 109
EP 117
DI 10.1089/cyber.2009.0370
PG 9
WC Psychology, Social
SC Psychology
GA 601BZ
UT WOS:000278034300016
PM 20528301
ER
PT J
AU McCafferty, E
AF McCafferty, E.
TI Relationship between the isoelectric point (pH(pzc)) and the potential
of zero charge (E-pzc) for passive metals
SO ELECTROCHIMICA ACTA
LA English
DT Article
DE Passivity; Oxide films; Isoelectric point; Potential of zero charge;
Flatband potential
ID ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY; BORATE BUFFER SOLUTION;
ACID-BASE PROPERTIES; ANODIC OXIDE-FILMS; SEMICONDUCTING PROPERTIES;
PHOTOELECTROCHEMICAL ANALYSIS; AQUEOUS-SOLUTIONS; PH-DEPENDENCE;
ELECTROLYTE INTERFACE; ZIRCONIUM METAL
AB The potential of zero charge of oxide-covered metals (E-pzc) is shown to be linear function of the isoelectric point of the oxide film (pH(pz)c). The linearity is displayed for 14 different metals having n-type semiconductor oxide films and for three metals having p-type semiconductor oxide films. Using experimental values from the literature, the slope of the linear plot of E-pzc vs. pH(pzc) is observed to be -0.142 V for n-type oxides and -0.115 V for p-type oxides. The theoretical slope is -0.120 V. which is derived in this communication. (C) 2009 Published by Elsevier Ltd.
C1 USN, Res Lab, Sci Applicat Int Corp, Washington, DC 20375 USA.
RP McCafferty, E (reprint author), USN, Res Lab, Sci Applicat Int Corp, Washington, DC 20375 USA.
EM mccafferty@anvil.nrl.navy.mil
FU Center for Corrosion Science and Technology at the Naval Research
Laboratory, Washington, DC; Office of Naval Research, Arlington, VA
FX The author appreciates the encouragement and support of K.E. Lucas,
Director of the Center for Corrosion Science and Technology at the Naval
Research Laboratory, Washington, DC, and of Dr. A. Perez of the Office
of Naval Research, Arlington, VA.
NR 97
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U1 3
U2 42
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0013-4686
J9 ELECTROCHIM ACTA
JI Electrochim. Acta
PD FEB 1
PY 2010
VL 55
IS 5
BP 1630
EP 1637
DI 10.1016/j.electacta.2009.10.040
PG 8
WC Electrochemistry
SC Electrochemistry
GA 569KY
UT WOS:000275596900019
ER
PT J
AU Woodruff, SI
Dougherty, AL
Dye, JL
Mohrle, CR
Galarneau, MR
AF Woodruff, Susan I.
Dougherty, Amber L.
Dye, Judy L.
Mohrle, Charlene R.
Galarneau, Michael R.
TI Use of recombinant factor VIIA for control of combat-related haemorrhage
SO EMERGENCY MEDICINE JOURNAL
LA English
DT Article
ID ACTIVATED FACTOR-VII; INJURY SEVERITY SCORE; V LIVER INJURIES;
DAMAGE-CONTROL; TRAUMA; COAGULOPATHY; RFVIIA; CARE; TRANSFUSION;
CASUALTIES
AB Background Recombinant activated human coagulation factor VII (rFVIIa), an intravascular strategy to promote clotting, is being used as an adjunct to surgical control of bleeding in combat trauma patients.
Objective To describe the initial experiences with rFVIIa administered to combat casualties at US Navy-Marine Corps medical treatment facilities in Iraq, and to compare survival outcomes of those treated with rFVIIa to controls not receiving rFVIIa.
Methods Medical encounter data from the US Navy-Marine Corps Combat Trauma Registry were retrospectively reviewed to identify all battle-injured patients documented as having received rFVIIa during the period May 2004 to January 2006 of Operation Iraqi Freedom. Available clinical and injury related data are presented to characterise the patients. To assess effects of rFVIIa on survival outcomes, rFVIIa cases were matched to controls on injury severity and age.
Results 22 battle-injured patients from the Combat Trauma Registry received rFVIIa. Primarily young US Marines, these patients typically had penetrating injuries from improvised explosive devices and gunshot wounds. Injuries were often abdominal. The average dose used was similar to that reported in another study of civilian trauma patients, although dosing varies widely in the existing experimental and anecdotal literature. Over two-thirds (68%) of the rFVIIa patients survived-an identical outcome seen for a matched control group of 22 patients.
Conclusions Survival of seriously injured combat casualties was good, although identical to that of a control group. Methodological limitations of this retrospective study preclude making firm conclusions about the effectiveness of rFVIIa. Future controlled studies are needed for safety and efficacy testing of rFVIIa in combat trauma patients.
C1 [Dougherty, Amber L.; Galarneau, Michael R.] USN, Hlth Res Ctr, Dept Med Modeling Simulat & Mission Support, San Diego, CA 92106 USA.
[Dye, Judy L.; Mohrle, Charlene R.] Sci Applicat Int Corp, Hlth Solut Business Unit, San Diego, CA USA.
[Woodruff, Susan I.] San Diego State Univ, Sch Social Work, San Diego, CA 92182 USA.
RP Dougherty, AL (reprint author), USN, Hlth Res Ctr, Dept Med Modeling Simulat & Mission Support, 140 Sylvester Rd, San Diego, CA 92106 USA.
EM amber.dougherty@med.navy.mil
FU US Navy Bureau of Medicine and Surgery, Washington, DC
FX This research was supported by the US Navy Bureau of Medicine and
Surgery, Washington, DC under Work Unit No. 60332. 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.; NHRC certifies that this research has been
conducted in compliance with all applicable federal regulations
governing the protection of human subjects in research (#
NHRC-2003-0025).
NR 28
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U1 0
U2 2
PU B M J PUBLISHING GROUP
PI LONDON
PA BRITISH MED ASSOC HOUSE, TAVISTOCK SQUARE, LONDON WC1H 9JR, ENGLAND
SN 1472-0205
J9 EMERG MED J
JI Emerg. Med. J.
PD FEB
PY 2010
VL 27
IS 2
BP 121
EP 124
DI 10.1136/emj.2008.060657
PG 4
WC Emergency Medicine
SC Emergency Medicine
GA 555MK
UT WOS:000274514700011
PM 20156864
ER
PT J
AU Lin, BC
Wang, Z
Malanoski, AP
O'Grady, EA
Wimpee, CF
Vuddhakul, V
Alves, N
Thompson, FL
Gomez-Gil, B
Vora, GJ
AF Lin, Baochuan
Wang, Zheng
Malanoski, Anthony P.
O'Grady, Elizabeth A.
Wimpee, Charles F.
Vuddhakul, Varaporn
Alves, Nelson, Jr.
Thompson, Fabiano L.
Gomez-Gil, Bruno
Vora, Gary J.
TI Comparative genomic analyses identify the Vibrio harveyi genome
sequenced strains BAA-1116 and HY01 as Vibrio campbellii
SO ENVIRONMENTAL MICROBIOLOGY REPORTS
LA English
DT Article
ID MOLECULAR-IDENTIFICATION; JUNIOR SYNONYM; SP-NOV.; QUORUM; BENECKEA;
MARINE; PHOTOBACTERIUM; PATHOGENICITY; LUMINESCENCE; CARCHARIAE
AB Three notable members of the Harveyi clade, Vibrio harveyi, Vibrio alginolyticus and Vibrio parahaemolyticus, are best known as marine pathogens of commercial and medical import. In spite of this fact, the discrimination of Harveyi clade members remains difficult due to genetic and phenotypic similarities, and this has led to misidentifications and inaccurate estimations of a species' involvement in certain environments. To begin to understand the underlying genetics that complicate species level discrimination, we compared the genomes of Harveyi clade members isolated from different environments (seawater, shrimp, corals, oysters, finfish, humans) using microarray-based comparative genomic hybridization (CGH) and multilocus sequence analyses (MLSA). Surprisingly, we found that the only two V. harveyi strains that have had their genomes sequenced (strains BAA-1116 and HY01) have themselves been misidentified. Instead of belonging to the species harveyi, they are actually members of the species campbellii. In total, 28% of the strains tested were found to be misidentified and 42% of these appear to comprise a novel species. Taken together, our findings correct a number of species misidentifications while validating the ability of both CGH and MLSA to distinguish closely related members of the Harveyi clade.
C1 [Lin, Baochuan; Wang, Zheng; Malanoski, Anthony P.; Vora, Gary J.] USN, Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 USA.
[O'Grady, Elizabeth A.; Wimpee, Charles F.] Univ Wisconsin, Dept Biol Sci, Milwaukee, WI 53201 USA.
[Vuddhakul, Varaporn] Prince Songkla Univ, Dept Microbiol, Hat Yai, Thailand.
[Alves, Nelson, Jr.; Thompson, Fabiano L.] Univ Fed Rio de Janeiro, Dept Genet, Rio De Janeiro, Brazil.
RP Vora, GJ (reprint author), USN, Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 USA.
EM gvora@cbmse.nrl.navy.mil
RI Gomez-Gil, Bruno/A-5287-2011; Malanoski, Anthony/C-7814-2011; Lin,
Baochuan/A-8390-2009;
OI Gomez-Gil, Bruno/0000-0002-3695-3597; Malanoski,
Anthony/0000-0001-6192-888X; Lin, Baochuan/0000-0002-9484-0785; Vora,
Gary/0000-0002-0657-8597
FU Office of Naval Research via US Naval Research Laboratory
FX We thank Drs Jinny Liu and Brian Barrows for critical evaluation of this
manuscript. The human clinical V. harveyi isolates were kindly provided
by Dr Cheryl Tarr (Centers for Disease Control and Prevention, Atlanta,
GA, USA). We also thank Dr James M. Cervino (Pace University, New York,
NY, USA and Woods Hole Oceanographic Institute, Woods Hole, MA, USA) for
providing the V. alginolyticus R-1249 outgroup strain. This work was
supported by the Office of Naval Research via US Naval Research
Laboratory core funds. The opinions and assertions contained herein are
those of the authors and are not to be construed as those of the US
Navy, military service at large or US Government.
NR 37
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U1 1
U2 9
PU WILEY-BLACKWELL PUBLISHING, INC
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 1758-2229
J9 ENV MICROBIOL REP
JI Environ. Microbiol. Rep.
PD FEB
PY 2010
VL 2
IS 1
SI SI
BP 81
EP 89
DI 10.1111/j.1758-2229.2009.00100.x
PG 9
WC Environmental Sciences; Microbiology
SC Environmental Sciences & Ecology; Microbiology
GA 619LO
UT WOS:000279431900011
ER
PT J
AU Asgaard, GL
Gilbert, DG
Malpass, D
Sugai, C
Dillon, A
AF Asgaard, Gregory L.
Gilbert, David G.
Malpass, Debra
Sugai, Chihiro
Dillon, Amber
TI Nicotine Primes Attention to Competing Affective Stimuli in the Context
of Salient Alternatives
SO EXPERIMENTAL AND CLINICAL PSYCHOPHARMACOLOGY
LA English
DT Article
DE nicotine; smoking; affect; priming; attentional bias; eye tracking
ID NEGATIVE-AFFECT; SMOKING; ADDICTION; REINFORCEMENT; MODEL; RATS; BIAS;
VULNERABILITY; ANXIETY; STRESS
AB Despite the importance of the subject, the effects of nicotine on the interplay between affect and attentional bias are not clear. This interplay was assessed with a novel design of the Primed Attentional Competition Task (PACT). It included a 200-ms duration emotional priming picture (negative, positive, or neutral) followed by a dual-target picture of two emotional faces side-by-side. A second task included an emotional priming picture followed by a single emotional target picture in a classic affective priming (CAP) task, assessing reaction time to identify the valence. Smokers completed the tasks in a double-blind repeated measures design wearing a nicotine patch on one day and a placebo patch on the other day. Consistent with hypotheses, nicotine enhanced the effectiveness of positive primes to bias first gaze-fixations (FGFs) toward neutral pictures relative to negative pictures and attenuated the effectiveness of negative primes on FGFs toward negative pictures, but did not bias performance in the CAP task where competing target stimuli were not present. These effects of nicotine on affective priming and attentional bias toward competing reinforcers may contribute to smoking motivation.
C1 [Asgaard, Gregory L.; Gilbert, David G.; Malpass, Debra; Sugai, Chihiro; Dillon, Amber] So Illinois Univ, Dept Psychol, Carbondale, IL 62901 USA.
RP Asgaard, GL (reprint author), Natl Naval Med Ctr, Dept Psychol, Portsmouth, VA 23708 USA.
EM greg.asgaard@gmail.com
RI Reis, Aline/G-9573-2012
FU National Institute on Drug Abuse [R01 DA017837, DA014104]
FX This research was supported in part by funding from the National
Institute on Drug Abuse R01 DA017837 and DA014104 awarded to David G.
Gilbert and the transdermal nicotine and placebo patches were donated by
GlaxoSmithKline. Ibis research served as a dissertation for Gregory L.
Asgaard. We thank the dissertation committee (David G. Gilbert, Chair,
Eric Jacobs, Benjamin Rodriguez, Rebecca Weston, and Ruth Anne Rehfeldt)
for their contributions to this research and also thank Dr. Lisa T.
Eyler for her comments on a draft of the manuscript.
NR 44
TC 8
Z9 8
U1 3
U2 6
PU AMER PSYCHOLOGICAL ASSOC
PI WASHINGTON
PA 750 FIRST ST NE, WASHINGTON, DC 20002-4242 USA
SN 1064-1297
J9 EXP CLIN PSYCHOPHARM
JI Exp. Clin. Psychopharmacol.
PD FEB
PY 2010
VL 18
IS 1
BP 51
EP 60
DI 10.1037/a0018516
PG 10
WC Psychology, Biological; Psychology, Clinical; Pharmacology & Pharmacy;
Psychiatry
SC Psychology; Pharmacology & Pharmacy; Psychiatry
GA 556AM
UT WOS:000274558800005
PM 20158294
ER
PT J
AU Leski, TA
Malanoski, AP
Stenger, DA
Lin, BC
AF Leski, Tomasz A.
Malanoski, Anthony P.
Stenger, David A.
Lin, Baochuan
TI Target amplification for broad spectrum microbial diagnostics and
detection
SO FUTURE MICROBIOLOGY
LA English
DT Review
DE 16S rRNA; microarrays; multiplex PCR; random amplification; small
subunit rRNA; strand displacement amplification; whole genome
amplification
ID WHOLE-GENOME AMPLIFICATION; 16S RIBOSOMAL-RNA; MICROARRAY-BASED
DETECTION; MULTIPLE DISPLACEMENT AMPLIFICATION; RESPIRATORY-TRACT
INFECTIONS; BASE STACKING HYBRIDIZATION; OLIGONUCLEOTIDE MICROARRAY; DNA
MICROARRAY; PATHOGEN DETECTION; BACTERIAL PATHOGENS
AB Microarrays are massively parallel detection platforms that were first used extensively for gene expression studies, but have also been successfully applied to microbial detection in a number of diverse fields requiring broad-range microbial identification, This technology has enabled researchers to gain an insight into the microbial diversity of environmental samples, facilitated discovery of a number of new pathogens and enabled studies of multipathogen infections. In contrast to gene expression studies, the concentrations of targets in analyzed samples for microbial detection are usually much lower, and require the use of nucleic acid amplification techniques, The rapid advancement of manufacturing technologies has increased the content of the microarrays; thus, the required amplification is a challenging problem. The constant parallel improvements in both microarray and sample amplification techniques in the near future may lead to a radical progression in medical diagnostics and systems for efficient detection of microorganisms in the environment.
C1 [Leski, Tomasz A.; Malanoski, Anthony P.; Stenger, David A.; Lin, Baochuan] USN, Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 USA.
[Leski, Tomasz A.] Nova Res Inc, Alexandria, VA USA.
RP Lin, BC (reprint author), USN, Res Lab, Ctr Biomol Sci & Engn, Code 6920,4555 Overlook Ave SW, Washington, DC 20375 USA.
EM tomasz.leski.ctr@nrl.navy.mil; anthony.malanoski@nrl.navy.mil;
david.stenger@nrl.navy.mil; baochuan.lin@nrl.navy.mil
RI Malanoski, Anthony/C-7814-2011; Leski, Tomasz/K-6916-2013; Lin,
Baochuan/A-8390-2009
OI Malanoski, Anthony/0000-0001-6192-888X; Leski,
Tomasz/0000-0001-7688-9887; Lin, Baochuan/0000-0002-9484-0785
NR 124
TC 6
Z9 9
U1 2
U2 8
PU FUTURE MEDICINE LTD
PI LONDON
PA UNITEC HOUSE, 3RD FLOOR, 2 ALBERT PLACE, FINCHLEY CENTRAL, LONDON, N3
1QB, ENGLAND
SN 1746-0913
J9 FUTURE MICROBIOL
JI Future Microbiol.
PD FEB
PY 2010
VL 5
IS 2
SI SI
BP 191
EP 203
DI 10.2217/FMB.09.126
PG 13
WC Microbiology
SC Microbiology
GA 559EI
UT WOS:000274804400012
PM 20143944
ER
PT J
AU Romanyukha, A
Reyes, RA
Trompier, F
Benevides, LA
AF Romanyukha, Alex
Reyes, Ricardo A.
Trompier, Francois
Benevides, Luis A.
TI FINGERNAIL DOSIMETRY: CURRENT STATUS AND PERSPECTIVES
SO HEALTH PHYSICS
LA English
DT Article
DE accident analysis; accidents, handling; dosimetry, external;
radiological terrorism
ID ELECTRON-PARAMAGNETIC-RESONANCE; DOSE ASSESSMENT; EPR DOSIMETRY;
RADIATION
AB A summary of recent developments in fingernail EPR dosimetry is presented in this paper. Until 2007, there had been a very limited number of studies of radiation-induced signals in fingernails. Although these studies showed some promising results, they were not complete with regard to the nature of non-radiation signals and the variability of dose dependence in fingernails. Recent study has shown that the two non-radiation components of the EPR spectrum of fingernails are originated from mechanical stress induced in the samples at their cut. The mechanical properties of fingernails were found to be very similar to those of a sponge; therefore, an effective way to eliminate their mechanical deformation is by soaking them in water. Stress caused by deformation can also significantly modify the dose response and radiation sensitivity. Consequently, it is critically important to take into account the mechanical stress in fingernail samples under EPR dose measurements. Obtained results have allowed formulating a prototype of a protocol for dose measurements in human fingernails. Health Phys. 98(2):296-300; 2010
C1 [Romanyukha, Alex; Benevides, Luis A.] USN, Dosimetry Ctr, Bethesda, MD 20889 USA.
[Romanyukha, Alex; Reyes, Ricardo A.] Uniformed Serv Univ Hlth Sci, Bethesda, MD 20814 USA.
[Trompier, Francois] Inst Radiol Protect & Nucl Safety, Fontenay Aux Roses, France.
RP Romanyukha, A (reprint author), USN, Dosimetry Ctr, 8901 Wisconsin Ave, Bethesda, MD 20889 USA.
EM aromanyukha@usuhs.mil
OI TROMPIER, Francois/0000-0002-8776-6572
FU U.S. Department of Defense
FX The study was funded through U.S. Department of Defense operational and
maintenance budget.
NR 12
TC 20
Z9 24
U1 0
U2 2
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0017-9078
EI 1538-5159
J9 HEALTH PHYS
JI Health Phys.
PD FEB
PY 2010
VL 98
IS 2
BP 296
EP 300
DI 10.1097/01.HP.0000347999.01948.74
PG 5
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 542RH
UT WOS:000273512200028
PM 20065697
ER
PT J
AU Shen, YC
Wu, VY
Melnick, G
AF Shen, Yu-Chu
Wu, Vivian Y.
Melnick, Glenn
TI Trends in Hospital Cost and Revenue, 1994-2005: How Are They Related to
HMO Penetration, Concentration, and For-Profit Ownership?
SO HEALTH SERVICES RESEARCH
LA English
DT Article
DE Managed care; ownership; concentration; hospital cost and revenue
ID CARE MARKET SHARE; HEALTH-INSURANCE MARKETS; MANAGED CARE; PLAN
PERFORMANCE; COMPETITION; EXPENDITURES; MEDICARE; MONOPSONY; INDUSTRY;
PRICES
AB Objective
Analyze trends in hospital cost and revenue, as well as price and quantity (1994-2005) as a function of health maintenance organization (HMO) penetration, HMO concentration, and for-profit (FP) HMO market share.
Data
Medicare hospital cost reports, AHA Annual Surveys, HMO data from Interstudy, and other supplemental data.
Study Design
A retrospective study of all short-term, general, nonfederal hospitals in metropolitan statistical areas (MSAs) in the United States from 1994 to 2005, using hospital/MSA fixed-effects translog regression models.
Principal Findings
A 10 percentage point increase in HMO enrollment is associated with 4.1-4.2 percent reduction in costs and revenues in the pre-2000 period but only a 2.1-2.5 percent reduction in the post-2000 period. Hospital revenue in HMO-dominant markets (highly concentrated HMO market and competitive hospital market) is 19-27 percent lower than other types of markets, and the difference is most likely due mainly to lower prices and to a lesser extent lower utilization.
Conclusions
The historical difference of lower spending in high HMO penetration markets compared with low HMO markets narrowed after 2000 and the relative concentration between HMO and hospital markets can substantially influence hospital spending. Additional research is needed to understand how different aspects of these two markets have changed and interacted and how they are causally linked to spending trends.
C1 [Shen, Yu-Chu] USN, Postgrad Sch, Grad Sch Business & Publ Policy, Monterey, CA 93943 USA.
[Wu, Vivian Y.; Melnick, Glenn] Univ So Calif, Sch Policy Planning & Dev, Los Angeles, CA USA.
RP Shen, YC (reprint author), USN, Postgrad Sch, Grad Sch Business & Publ Policy, 555 Dyer Rd, Monterey, CA 93943 USA.
EM yshen@nps.edu
FU Robert Wood Johnson Foundation's Changes in Health Care Financing and
Organization (HCFO) [56110]
FX Joint Acknowledgment/Disclosure Statement: We gratefully acknowledge
funding for this research from grant 56110 under the Robert Wood Johnson
Foundation's Changes in Health Care Financing and Organization (HCFO)
Initiative. We thank Robert Reddick for providing the hospital
competition measures; Laurence Baker for providing historical HMO
penetration data; and Shoutzu Lin for excellent programming assistance.
The authors do not have any conflict of interest, financial or
otherwise. Disclosures: None. Disclaimers: None.
NR 49
TC 5
Z9 5
U1 3
U2 8
PU WILEY-BLACKWELL
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
SN 0017-9124
EI 1475-6773
J9 HEALTH SERV RES
JI Health Serv. Res.
PD FEB
PY 2010
VL 45
IS 1
BP 42
EP 61
DI 10.1111/j.1475-6773.2009.01047.x
PG 20
WC Health Care Sciences & Services; Health Policy & Services
SC Health Care Sciences & Services
GA 541YC
UT WOS:000273456400004
PM 19840134
ER
PT J
AU Richter, JT
Strange, RG
Fisher, SI
Miller, DV
Delvecchio, DM
AF Richter, James T.
Strange, Robert G., Jr.
Fisher, Stephen I.
Miller, Dylan V.
Delvecchio, David M.
TI Extranodal Rosai-Dorfman disease presenting as a cardiac mass in an
adult: report of a unique case and lack of relationship to IgG4-related
sclerosing lesions
SO HUMAN PATHOLOGY
LA English
DT Article
DE Extranodal Rosai-Dorfman disease; Cardiac mass; IgG4-sclerosing lesions;
Adult
ID SINUS HISTIOCYTOSIS; LYMPHADENOPATHY; ENTITY
AB Rosai-Dorfman disease (also known as sinus histiocytosis with massive lymphadenopathy) is a rare disease of unknown etiology that typically presents as nodal disease in young children. However, it also can present in various extranodal sites and can be difficult to recognize if not considered in the differential diagnosis. We describe a 55-year-old man who was discovered to have extranodal Rosai-Dorfman disease that presented as a cardiac mass involving the left atrium and ventricle during evaluation for atypical chest pain, and discuss the clinical, radiologic, and pathologic findings as well as treatment approach and consideration of a possible relationship of this entity to IgG4-related sclerosing lesions. Published by Elsevier Inc.
C1 [Richter, James T.; Delvecchio, David M.] USN, Med Ctr Portsmouth, Dept Lab, Portsmouth, VA 23708 USA.
[Strange, Robert G., Jr.] USN, Med Ctr Portsmouth, Dept Surg, Portsmouth, VA 23708 USA.
[Fisher, Stephen I.] Sentara Norfolk Gen Hosp, Dept Pathol, Div Hematopathol, Norfolk, VA 23507 USA.
[Miller, Dylan V.] Mayo Clin, Mayo Med Labs, Div Anat Pathol, Rochester, MN 55905 USA.
RP Richter, JT (reprint author), USN, Med Ctr Portsmouth, Dept Lab, Portsmouth, VA 23708 USA.
EM james.richter@med.navy.mil
NR 12
TC 18
Z9 20
U1 0
U2 1
PU W B SAUNDERS CO-ELSEVIER INC
PI PHILADELPHIA
PA 1600 JOHN F KENNEDY BOULEVARD, STE 1800, PHILADELPHIA, PA 19103-2899 USA
SN 0046-8177
J9 HUM PATHOL
JI Hum. Pathol.
PD FEB
PY 2010
VL 41
IS 2
BP 297
EP 301
DI 10.1016/j.humpath.2009.07.025
PG 5
WC Pathology
SC Pathology
GA 581AW
UT WOS:000276493600019
PM 19962176
ER
PT J
AU Chabak, KD
Gillespie, JK
Miller, V
Crespo, A
Roussos, J
Trejo, M
Walker, DE
Via, GD
Jessen, GH
Wasserbauer, J
Faili, F
Babic, DI
Francis, D
Ejeckam, F
AF Chabak, Kelson D.
Gillespie, James K.
Miller, Virginia
Crespo, Antonio
Roussos, Jason
Trejo, Manuel
Walker, Dennis E., Jr.
Via, Glen D.
Jessen, Gregg H.
Wasserbauer, John
Faili, Firooz
Babic, Dubravko I.
Francis, Daniel
Ejeckam, Felix
TI Full-Wafer Characterization of AlGaN/GaN HEMTs on Free-Standing CVD
Diamond Substrates
SO IEEE ELECTRON DEVICE LETTERS
LA English
DT Article
DE Chemical vapor deposited (CVD) diamond substrate; GaN-on-diamond; high
electron mobility transistor (HEMT)
ID AMPLIFIERS; GANHEMTS; DEVICES
AB We report on electrical characterization and uniformity measurements of the first conventionally processed AlGaN/GaN high electron mobility transistors (HEMTs) on free-standing chemical-vapor-deposited (CVD) diamond substrate wafers. DC and RF device performance is reported on HEMTs fabricated on similar to 130-mu m-thick and 30-mm round CVD diamond substrates without mechanical carrying wafers. A measured f(T) . L(G) product of 12.5 GHz . mu m is the best reported data for all GaN-on-diamond technology. X-band power performance of AlGaN/GaN HEMTs on diamond is reported to be 2.08 W/mm and 44.1% power added efficiency. This letter demonstrates the potential for GaN HEMTs to be fabricated on CVD diamond substrates utilizing contact lithography process techniques. Further optimization of the epitaxy and diamond substrate attachment process could provide for improvements in thermal spreading while preserving the electrical properties.
C1 [Chabak, Kelson D.; Gillespie, James K.; Miller, Virginia; Crespo, Antonio; Trejo, Manuel; Walker, Dennis E., Jr.; Via, Glen D.; Jessen, Gregg H.] USAF, Res Lab, Sensors Directorate, Wright Patterson AFB, OH 45433 USA.
[Roussos, Jason] USN, Res Lab, Washington, DC 20375 USA.
[Walker, Dennis E., Jr.] Wyle Labs, Dayton, OH 45431 USA.
[Wasserbauer, John; Faili, Firooz; Babic, Dubravko I.; Francis, Daniel; Ejeckam, Felix] Grp 4 Labs LLC, Menlo Pk, CA 95025 USA.
RP Chabak, KD (reprint author), USAF, Res Lab, Sensors Directorate, Wright Patterson AFB, OH 45433 USA.
EM kelson.chabak@us.af.mil; james.gillespie@wpafb.af.mil;
virginia.miller@wpafb.af.mil; antonio.crespo@wpafb.af.mil;
roussos@nrl.navy.mil; manuel.trejo@wpafb.af.mil;
dennis.walker@wpafb.af.mil; glen.via@wpafb.af.mil;
gregg.jessen@aoard.af.mil; john_wasserbauer@group4labs.com;
firooz_faili@group4labs.com; dubravko_babic@group4labs.com;
daniel_francis@group4labs.com; felix_ejeckam@group4labs.com
NR 13
TC 31
Z9 32
U1 4
U2 30
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0741-3106
J9 IEEE ELECTR DEVICE L
JI IEEE Electron Device Lett.
PD FEB
PY 2010
VL 31
IS 2
BP 99
EP 101
DI 10.1109/LED.2009.2036574
PG 3
WC Engineering, Electrical & Electronic
SC Engineering
GA 549BY
UT WOS:000274018000003
ER
PT J
AU Devgan, PS
Pruessner, MW
Urick, VJ
Williams, KJ
AF Devgan, Preetpaul S.
Pruessner, Marcel W.
Urick, Vincent J.
Williams, Keith J.
TI Detecting Low-Power RF Signals Using a Multimode Optoelectronic
Oscillator and Integrated Optical Filter
SO IEEE PHOTONICS TECHNOLOGY LETTERS
LA English
DT Article
DE Channelization; optoelectronic oscillator (OEO); silicon integrated
optical filters
AB We have assembled and characterized a multimode optoelectronic oscillator with integrated optical filter for detecting low-power radio-frequency (RF) signals. The system can selectively amplify RF signals from 1 to 6 GHz. The input signals can be as low as -83 dBm with a compression dynamic range of 72 dB. Using an integrated silicon optical filter facilitates channelization of the amplified RF signal from 1 to 3 GHz by reducing the gain for signals above 3 GHz. Future system improvements are discussed.
C1 [Devgan, Preetpaul S.; Pruessner, Marcel W.; Urick, Vincent J.; Williams, Keith J.] USN, Res Lab, Washington, DC 20375 USA.
RP Devgan, PS (reprint author), USN, Res Lab, Washington, DC 20375 USA.
EM pdevgan@ccs.nrl.navy.mil; marcel.pruessner@nrl.navy.mil;
vurick@ccs.nrl.navy.mil; keith.williams@nrl.navy.mil
NR 8
TC 10
Z9 10
U1 3
U2 8
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1041-1135
J9 IEEE PHOTONIC TECH L
JI IEEE Photonics Technol. Lett.
PD FEB 1
PY 2010
VL 22
IS 3
BP 152
EP 154
DI 10.1109/LPT.2009.2037154
PG 3
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA 543WB
UT WOS:000273608800008
ER
PT J
AU Asvestas, JS
Yankovich, SP
Allen, OE
AF Asvestas, John S.
Yankovich, Stephen Paul
Allen, Oliver Eric
TI Calculation of the Impedance Matrix Inner Integral to Prescribed
Precision
SO IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
LA English
DT Article
DE Boundary-integral equations; cubatures; Gordon-Bilow transformation;
impedance-matrix; method of moments (MoM); numerical integration;
significant digits; Taylor's theorem with a remainder
ID POTENTIAL INTEGRALS; ELEMENTS; ACCURATE
AB We present a new method for evaluating the inner integral of the impedance matrix element in the traditional Rao-Wilton-Glisson formulation of the method of moments for perfect conductors. In this method we replace the original integrand (modified by a constant phase factor) by its Taylor series and keep enough terms to guarantee a number of significant digits in the integration outcome. We develop criteria that relate the number of Taylor terms to the number of required significant digits. We integrate the leading Taylor terms analytically and the rest through iteration formulas. We show that the iteration formulas converge for all observation points within a sphere with a radius of half-a-wavelength and center the triangle's centroid. We compare results of our method with existing ones and find them in excellent agreement. We also outline a procedure for using cubatures outside the region of convergence.
C1 [Asvestas, John S.; Yankovich, Stephen Paul; Allen, Oliver Eric] NAVAIR, Radar & Antenna Syst Div, Patuxent River, MD 20670 USA.
RP Asvestas, JS (reprint author), NAVAIR, Radar & Antenna Syst Div, Code 4-5-5, Patuxent River, MD 20670 USA.
EM john.asvestas@navy.mil; oliver.allen@navy.mil
NR 16
TC 7
Z9 8
U1 0
U2 1
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0018-926X
J9 IEEE T ANTENN PROPAG
JI IEEE Trans. Antennas Propag.
PD FEB
PY 2010
VL 58
IS 2
BP 479
EP 487
DI 10.1109/TAP.2009.2037703
PG 9
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA 551LL
UT WOS:000274210700025
ER
PT J
AU Su, WL
Alchazidis, NV
Ha, TT
AF Su, Weilian
Alchazidis, Nikolaos V.
Ha, Tri T.
TI Multiple RFID Tags Access Algorithm
SO IEEE TRANSACTIONS ON MOBILE COMPUTING
LA English
DT Article
DE Passive RFID systems; tags; framed slotted aloha; collisions; data
integrity; progressing scanning algorithm
ID ALOHA
AB One of the main problems that affect the data integrity of passive RFID systems is the collision between the tags. A popular anticollision algorithm which dominates the standards in HF and UHF passive RFID systems is Framed Slotted Aloha (FSA) and some variations of FSA. Throughput and average time delay of the RFID system which determines the performance/efficiency of the system are reduced rapidly when the number of tags inside the interrogation zone is increased. Using larger frame sizes is not always the solution. This paper discusses and compares the existing protocols, and proposes a variation of FSA, called Progressing Scanning ( PS) algorithm. The PS algorithm divides the tags in the interrogation zone into smaller groups and gives the reader the ability to communicate with each of them. For performance analysis, the PS algorithm was evaluated with the parameters of a typical passive RFID system at 2.5 GHz. The results showed that the PS algorithm can improve the efficiency of the RFID system and provide a reliable solution for cases with a high density of tags in the area ( over 800 tags).
C1 [Su, Weilian; Alchazidis, Nikolaos V.; Ha, Tri T.] USN, Postgrad Sch, Dept Elect & Comp Engn, Monterey, CA 93943 USA.
RP Su, WL (reprint author), USN, Postgrad Sch, Dept Elect & Comp Engn, 833 Dyer Rd,Rm 452,Spanagel Bldg 232, Monterey, CA 93943 USA.
EM weilian@nps.edu; nalchazi@nps.edu; ha@nps.edu
NR 14
TC 29
Z9 37
U1 0
U2 3
PU IEEE COMPUTER SOC
PI LOS ALAMITOS
PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1314 USA
SN 1536-1233
J9 IEEE T MOBILE COMPUT
JI IEEE. Trans. Mob. Comput.
PD FEB
PY 2010
VL 9
IS 2
BP 174
EP 187
DI 10.1109/TMC.2009.106
PG 14
WC Computer Science, Information Systems; Telecommunications
SC Computer Science; Telecommunications
GA 541UY
UT WOS:000273447600003
ER
PT J
AU Engel, TG
Veracka, MJ
Neri, JM
AF Engel, Thomas G.
Veracka, Michael J.
Neri, Jesse M.
TI The Specific-Force Performance Parameter for Electromagnetic Launchers
SO IEEE TRANSACTIONS ON PLASMA SCIENCE
LA English
DT Article
DE Coilguns; electromagnetic launching; linear motors; railguns
ID HIGH-EFFICIENCY; RAILGUN
AB A new electromagnetic-launcher (EML) performance parameter called the specific force is presented and analyzed in this paper. The specific force is the second derivative of the EML's force equation with respect to current and represents the force generated by the EML per unit square ampere, i.e., the EML's current efficiency. The specific force is independent of operating current and is defined for EMLs utilizing linear and nonlinear magnetic materials. The second derivative is termed as the specific force, since it unifies the various EML geometries so that only one force equation is required. The specific force, together with the energy-conversion efficiency, can be used as criterion to evaluate and compare EML geometries for various applications. The specific force for conventional railguns, augmented railguns, conventional helical launchers, and high-efficiency helical launchers is derived in this paper. The experimental performance of conventional railguns, augmented railguns, and conventional helical launchers are also analyzed in terms of their specific-force parameters.
C1 [Engel, Thomas G.] Univ Missouri, Dept Elect & Comp Engn, Columbia, MO 65211 USA.
[Veracka, Michael J.] USN, Res Lab, Offboard Countermeasures Branch, Tact EW Div, Washington, DC 20375 USA.
[Neri, Jesse M.] USN, Res Lab, Div Plasma Phys, Pulsed Power Phys Branch, Washington, DC 20375 USA.
RP Engel, TG (reprint author), Univ Missouri, Dept Elect & Comp Engn, Columbia, MO 65211 USA.
EM engelt@missouri.edu
FU U.S. Naval Research Laboratory [N00173-02-C-2012]
FX This work was supported in part by the U.S. Naval Research Laboratory
under Contract N00173-02-C-2012.
NR 20
TC 11
Z9 11
U1 0
U2 6
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 0093-3813
J9 IEEE T PLASMA SCI
JI IEEE Trans. Plasma Sci.
PD FEB
PY 2010
VL 38
IS 2
BP 194
EP 198
DI 10.1109/TPS.2009.2036260
PG 5
WC Physics, Fluids & Plasmas
SC Physics
GA 553UB
UT WOS:000274391200019
ER
PT J
AU Matey, JR
Broussard, R
Kennell, L
AF Matey, James R.
Broussard, Randy
Kennell, Lauren
TI Iris image segmentation and sub-optimal images
SO IMAGE AND VISION COMPUTING
LA English
DT Article
DE Biometric; Iris recognition; Iris segmentation
ID RECOGNITION
AB Iris recognition is well developed and works well for optimal or near-optimal iris images. Dealing with sub-optimal images remains a challenge. Resolution, wavelength, occlusion and gaze are among the most important factors for sub-optimal images. In this paper, we explore the sensitivity of matching to these factors through analysis and numerical simulation, with particular emphasis on the segmentation portion of the processing chain. (C) 2009 Published by Elsevier B.V.
C1 [Matey, James R.; Broussard, Randy] USN Acad, Ctr Biometr Signal Proc, ECE Dept, Annapolis, MD 21402 USA.
[Kennell, Lauren] Johns Hopkins Appl Phys Lab, Laurel, MD 20723 USA.
RP Matey, JR (reprint author), USN Acad, Ctr Biometr Signal Proc, ECE Dept, Maury Hall,MS 14B, Annapolis, MD 21402 USA.
EM matey@usna.edu
RI Matey, James/B-4372-2013
OI Matey, James/0000-0002-0508-785X
FU US Naval Academy Center
FX This work has been funded through the US Naval Academy Center for
Biometric Signal Processing.
NR 39
TC 12
Z9 13
U1 0
U2 7
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0262-8856
EI 1872-8138
J9 IMAGE VISION COMPUT
JI Image Vis. Comput.
PD FEB
PY 2010
VL 28
IS 2
SI SI
BP 215
EP 222
DI 10.1016/j.imavis.2009.05.006
PG 8
WC Computer Science, Artificial Intelligence; Computer Science, Software
Engineering; Computer Science, Theory & Methods; Engineering, Electrical
& Electronic; Optics
SC Computer Science; Engineering; Optics
GA 538GR
UT WOS:000273173100002
ER
PT J
AU Goldschlag, DM
Stubblebine, SG
Syverson, PF
AF Goldschlag, David M.
Stubblebine, Stuart G.
Syverson, Paul F.
TI Temporarily hidden bit commitment and lottery applications
SO INTERNATIONAL JOURNAL OF INFORMATION SECURITY
LA English
DT Article
DE Timed commitment; Predictability; Lottery design; Public verifiability
AB This paper describes various types of commitment functions that maintain a secret for a predictable time delay or until a moderate and predictable amount of computation has occurred. The properties we set out for such functions are based on their usefulness for various applications, such as publicly verifiable lotteries, rather than for cryptologic investigation of the functions. In these lotteries, winners are chosen fairly using only internal information. Since all this information may be published (even before the lottery closes), anyone can do the calculation and therefore verify that the winner was chosen correctly. Since the calculation uses a delaying or similar function, neither ticket purchasers nor the lottery organizer can take advantage of this information. We describe several such lotteries and the security requirements they satisfy, assuming that functions with the properties we state are used.
C1 [Syverson, Paul F.] USN, Res Lab, Ctr High Assurance Comp Syst, Washington, DC 20375 USA.
[Stubblebine, Stuart G.] Stubblebine Consulting LLC, Madison, NJ 07940 USA.
[Goldschlag, David M.] Trust Digital Inc, Mclean, VA USA.
RP Syverson, PF (reprint author), USN, Res Lab, Ctr High Assurance Comp Syst, Washington, DC 20375 USA.
EM david@goldschlag.com; stuart@stubblebine.com; syverson@itd.nrl.navy.mil
NR 23
TC 1
Z9 1
U1 0
U2 0
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1615-5262
J9 INT J INF SECUR
JI Int. J. Inf. Secur.
PD FEB
PY 2010
VL 9
IS 1
BP 33
EP 50
DI 10.1007/s10207-009-0094-1
PG 18
WC Computer Science, Information Systems; Computer Science, Software
Engineering; Computer Science, Theory & Methods
SC Computer Science
GA 549HO
UT WOS:000274038500003
ER
PT J
AU Broderick, MP
Hansen, CJ
Irvine, M
Metzgar, D
Campbell, K
Baker, C
Russell, KL
AF Broderick, M. P.
Hansen, C. J.
Irvine, M.
Metzgar, D.
Campbell, K.
Baker, C.
Russell, K. L.
TI Adenovirus 36 seropositivity is strongly associated with race and
gender, but not obesity, among US military personnel
SO INTERNATIONAL JOURNAL OF OBESITY
LA English
DT Article
DE Ad-36; adenoviruses; viral antibodies; military
ID BODY-MASS INDEX; ADIPOSITY; INFECTION; TRANSMISSION; CHICKEN; INSULIN;
WEIGHT
AB Background: Although several studies have shown a positive association between evidence of anti-adenovirus 36 (Ad-36) antibodies (Ad-36 exposure) and ( 1) obesity and ( 2) serum cholesterol in animals, there is limited research demonstrating this association in humans. There is also limited research on transmission, presentation and demographics of Ad-36 infection.
Design: ( 1) Body mass ( body mass index ( BMI)), ( 2) fasting serum cholesterol and triglyceride levels and ( 3) demographic characteristics were compared between Ad-36 seropositive and seronegative groups. The majority of subjects were matched as cases versus controls on a number of demographic variables.
Subjects: A total of 150 obese and 150 lean active-duty military personnel were studied.
Measurements: Subjects completed a questionnaire regarding demographic and behavioral characteristics. Subject serum samples were tested by serum neutralization assay for the presence of anti-Ad-36 antibodies.
Results: In all, 34% of obese and 39% of lean subjects had Ad-36 exposure, an insignificant difference. Serum cholesterol and triglyceride levels were significantly higher among the obese subjects than among the lean, but there were no associations between serum cholesterol and triglyceride levels and Ad-36 exposure. Positive associations were found between Ad-36 exposure and age, race and gender.
Conclusion: The study stands in contrast to previous work that has shown a positive relationship between Ad-36 exposure and ( 1) obesity, and ( 2) levels of serum cholesterol and triglycerides. In this study there was no association in either case. Unanticipated relationships between Ad-36 exposure and age, race and gender were found, and this is the first time that such a link between Ad-36 exposure and demographics has been found. International Journal of Obesity ( 2010) 34, 302-308; doi: 10.1038/ijo.2009.224; published online 10 November 2009
C1 [Broderick, M. P.; Hansen, C. J.; Irvine, M.; Metzgar, D.; Campbell, K.; Baker, C.; Russell, K. L.] USN, Hlth Res Ctr, Dept Resp Dis Res, San Diego, CA 92186 USA.
RP Broderick, MP (reprint author), USN, Hlth Res Ctr, Dept Resp Dis Res, POB 85122, San Diego, CA 92186 USA.
EM michael.broderick@med.navy.mil
FU Department of the Navy; Department of Defense or the US Government; US
Department of Defense [60501]; Global Emerging Infections Surveillance
and Response System [61102A-M010160501]
FX We thank the commands of the USS Nimitz and the Naval Base, San Diego,
CA, USA for permission to recruit subjects. We are indebted to Dr Joel
Gaydos and Dr MAK Ryan for their incipient and continued support of this
study. We also are grateful for the contributions of Dr Peter Kammerer,
Meghan Donahue, and Ryan Ortiguerra of the Naval Health Research Center
Virology Laboratory. This research has been conducted in compliance with
all applicable federal regulations governing the protection of human
subjects in research (protocol NHRC.2001.0013). The views expressed in
this article are those of the authors and do not reflect the official
policy or position of the Department of the Navy, the Department of
Defense or the US Government. US Department of Defense and the Global
Emerging Infections Surveillance and Response System (award
61102A-M010160501) supported us financially. This study represents
report 08-XX, supported by the Department of Defense under work unit no.
60501.
NR 30
TC 39
Z9 39
U1 0
U2 1
PU NATURE PUBLISHING GROUP
PI LONDON
PA MACMILLAN BUILDING, 4 CRINAN ST, LONDON N1 9XW, ENGLAND
SN 0307-0565
J9 INT J OBESITY
JI Int. J. Obes.
PD FEB
PY 2010
VL 34
IS 2
BP 302
EP 308
DI 10.1038/ijo.2009.224
PG 7
WC Endocrinology & Metabolism; Nutrition & Dietetics
SC Endocrinology & Metabolism; Nutrition & Dietetics
GA 555JZ
UT WOS:000274508100011
PM 19901952
ER
PT J
AU Crum-Cianflone, N
Dilay, A
Collins, G
Asher, D
Campin, R
Medina, S
Goodman, Z
Lifson, A
Bavaro, M
Hale, B
AF Crum-Cianflone, Nancy
Dilay, Angelica
Collins, Gary
Asher, Dean
Campin, Richard
Medina, Sheila
Goodman, Zach
Lifson, Alan
Bavaro, Mary
Hale, Braden
TI Reply to "Nonalcoholic Fatty Liver Disease Among HIV-Infected Persons"
SO JAIDS-JOURNAL OF ACQUIRED IMMUNE DEFICIENCY SYNDROMES
LA English
DT Letter
ID HEPATITIS-C-VIRUS; COMPUTED-TOMOGRAPHY; STEATOSIS; ULTRASONOGRAPHY;
STEATOHEPATITIS; PREVALENCE
C1 [Crum-Cianflone, Nancy; Medina, Sheila; Bavaro, Mary; Hale, Braden] USN, HIV Clin, San Diego Med Ctr, San Diego, CA 92152 USA.
[Crum-Cianflone, Nancy; Medina, Sheila; Bavaro, Mary; Hale, Braden] IDCRP, Bethesda, MD USA.
[Crum-Cianflone, Nancy; Dilay, Angelica] San Diego State Univ, Sch Publ Hlth, San Diego, CA 92182 USA.
[Collins, Gary; Lifson, Alan] Univ Minnesota, Sch Publ Hlth, Div Biostat, Minneapolis, MN 55455 USA.
[Asher, Dean] USN, Dept Radiol, San Diego Med Ctr, San Diego, CA 92152 USA.
[Goodman, Zach] Armed Forces Inst Pathol, Washington, DC 20306 USA.
RP Crum-Cianflone, N (reprint author), USN, HIV Clin, San Diego Med Ctr, San Diego, CA 92152 USA.
NR 18
TC 0
Z9 0
U1 0
U2 0
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 1525-4135
J9 JAIDS-J ACQ IMM DEF
JI JAIDS
PD FEB 1
PY 2010
VL 53
IS 2
BP 278
EP 281
PG 4
WC Immunology; Infectious Diseases
SC Immunology; Infectious Diseases
GA 549EQ
UT WOS:000274029000021
ER
PT J
AU Bevilacqua, M
Tumilty, N
Mitra, C
Ye, HT
Feygelson, T
Butler, JE
Jackman, RB
AF Bevilacqua, Mose
Tumilty, Niall
Mitra, Chiranjib
Ye, Haitao
Feygelson, Tatayana
Butler, James E.
Jackman, Richard B.
TI Nanocrystalline diamond as an electronic material: An impedance
spectroscopic and Hall effect measurement study
SO JOURNAL OF APPLIED PHYSICS
LA English
DT Article
DE boron; carrier density; carrier mobility; diamond; dielectric losses;
dielectric thin films; elemental semiconductors; grain boundaries; grain
size; Hall effect; nanofabrication; nanostructured materials;
semiconductor doping; semiconductor thin films
ID CHEMICAL-VAPOR-DEPOSITION; THIN-FILM DIAMOND; CVD DIAMOND;
ELECTRICAL-TRANSPORT; DIELECTRIC-PROPERTIES; SURFACE CONDUCTIVITY;
BORON; ULTRANANOCRYSTALLINE; EMISSION; HYDROGEN
AB Nanocrystalline diamond (NCD) has been grown using a nanodiamond seeding technique, leading to a dense form of this material, with grain sizes around 100 nm. The electrical properties of both intrinsic and lightly boron-doped NCD have been investigated using impedance spectroscopy and Hall effect measurements. For intrinsic material, both grain boundaries and grains themselves initially contribute to the frequency dependant impedance values recorded. However, boundary conduction can be removed and the films become highly resistive. Interestingly, the ac properties of these films are also excellent with a dielectric loss value similar to 0.004 for frequencies up to 10 MHz. The dielectric properties of these NCD films are therefore as good as high quality large grain polycrystalline diamond films. In the case of boron-doped material, p-type material with good carrier mobility values (10-50 cm(2)/V s) can be produced at carrier concentrations around 10(17) cm(-3).
C1 [Bevilacqua, Mose; Tumilty, Niall; Mitra, Chiranjib; Ye, Haitao; Jackman, Richard B.] UCL, Dept Elect & Elect Engn, London WC1H 0AH, England.
[Bevilacqua, Mose; Tumilty, Niall; Mitra, Chiranjib; Ye, Haitao; Jackman, Richard B.] UCL, London Ctr Nanotechnol, London WC1H 0AH, England.
[Feygelson, Tatayana; Butler, James E.] USN, Res Lab, Washington, DC 20375 USA.
RP Jackman, RB (reprint author), UCL, Dept Elect & Elect Engn, 17-19 Gower St, London WC1H 0AH, England.
EM r.jackman@ucl.ac.uk
RI Mitra, Chiranjib/B-7582-2011; Butler, James/B-7965-2008
OI Butler, James/0000-0002-4794-7176
FU The U.K. Engineering and Physical Sciences Research Council (EPSRC)
[EP/D029651]; Office of Naval Research/Naval Research Laboratory
FX The U.K. Engineering and Physical Sciences Research Council (EPSRC) is
acknowledged for financial support under Award No. EP/D029651. T.F. and
J.E.B. acknowledge the support of the Office of Naval Research/Naval
Research Laboratory.
NR 42
TC 10
Z9 11
U1 2
U2 22
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 0021-8979
J9 J APPL PHYS
JI J. Appl. Phys.
PD FEB
PY 2010
VL 107
IS 3
AR 033716
DI 10.1063/1.3291118
PG 8
WC Physics, Applied
SC Physics
GA 555MZ
UT WOS:000274517300060
ER
PT J
AU Mahon, RT
AF Mahon, Richard T.
TI Tiny bubbles
SO JOURNAL OF APPLIED PHYSIOLOGY
LA English
DT Editorial Material
ID DECOMPRESSION-SICKNESS; GAS-BUBBLES; RATS; EXERCISE; NUCLEI
C1 [Mahon, Richard T.] USN, Med Res Ctr, Undersea Med Dept, Silver Spring, MD 20910 USA.
[Mahon, Richard T.] Uniformed Serv Univ Hlth Sci, Bethesda, MD 20814 USA.
RP Mahon, RT (reprint author), USN, Med Res Ctr, Undersea Med Dept, 503 Robert Grant Ave, Silver Spring, MD 20910 USA.
EM Richard.Mahon@med.navy.mil
NR 10
TC 1
Z9 1
U1 0
U2 2
PU AMER PHYSIOLOGICAL SOC
PI BETHESDA
PA 9650 ROCKVILLE PIKE, BETHESDA, MD 20814 USA
SN 8750-7587
J9 J APPL PHYSIOL
JI J. Appl. Physiol.
PD FEB
PY 2010
VL 108
IS 2
BP 238
EP 239
DI 10.1152/japplphysiol.01384.2009
PG 2
WC Physiology; Sport Sciences
SC Physiology; Sport Sciences
GA 550VI
UT WOS:000274158300002
PM 20019159
ER
PT J
AU Mastro, MA
Tadjer, MJ
Kub, FJ
Hobart, KD
Eddy, CR
Kim, J
Papantonakis, MR
AF Mastro, M. A.
Tadjer, M. J.
Kub, F. J.
Hobart, K. D.
Eddy, C. R., Jr.
Kim, J.
Papantonakis, M. R.
TI Rechargeable zinc oxide/carbon nano-structures
SO JOURNAL OF CERAMIC PROCESSING RESEARCH
LA English
DT Article
DE zinc oxide; carbon nanotube; piezoelectric; nanowire
ID SUPERCAPACITOR; ELECTRODE
AB A simple solution growth process was employed to deposit ZnO nanowires on carbon nanotubes and nano-structured carbon paper. Vertical ZnO nanowires formed on the carbon paper with a hexagonal orientation. On the carbon nanotubes, the ZnO nanowires and platelets integrated as in agglomerated sphere. Electric charge flow was measured in both structures upon probe contact, and would decay over several hours. A mechanical perturbation was found to recharge the structure, which was attributed to the piezoelectric ZnO nanowires. Continuous as well as intermittent vibration coupled with an electrochemical storage mechanism to create a perpetual current source.
C1 [Mastro, M. A.; Tadjer, M. J.; Kub, F. J.; Hobart, K. D.; Eddy, C. R., Jr.; Papantonakis, M. R.] USN, Res Lab, Washington, DC 20375 USA.
[Kim, J.] Korea Univ, Dept Chem & Biol Engn, Seoul, South Korea.
RP Mastro, MA (reprint author), USN, Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA.
RI Papantonakis, Michael/G-3888-2012; Kim, Jihyun/F-6940-2013
FU Korea University
FX The Research at Korea University was supported by the BK21 program
NR 12
TC 1
Z9 1
U1 1
U2 7
PU KOREAN ASSOC CRYSTAL GROWTH, INC
PI SEOUL
PA SUNGDONG POST OFFICE, P O BOX 27, SEOUL 133-600, SOUTH KOREA
SN 1229-9162
J9 J CERAM PROCESS RES
JI J. Ceram. Process. Res.
PD FEB
PY 2010
VL 11
IS 1
BP 40
EP 43
PG 4
WC Materials Science, Ceramics
SC Materials Science
GA 571VI
UT WOS:000275783600009
ER
PT J
AU O'Neill, LW
Esbensen, SK
Thum, N
Samelson, RM
Chelton, DB
AF O'Neill, Larry W.
Esbensen, Steven K.
Thum, Nicolai
Samelson, Roger M.
Chelton, Dudley B.
TI Dynamical Analysis of the Boundary Layer and Surface Wind Responses to
Mesoscale SST Perturbations
SO JOURNAL OF CLIMATE
LA English
DT Article
ID EASTERN EQUATORIAL PACIFIC; TROPICAL INSTABILITY WAVES; OCEAN-ATMOSPHERE
INTERACTION; AIR-SEA INTERACTION; LOW-LEVEL WINDS; GULF-STREAM;
SOUTHERN-OCEAN; SATELLITE-OBSERVATIONS; TEMPERATURE-GRADIENTS; AGULHAS
CURRENT
AB The dynamical response of the marine atmospheric boundary layer (MABL) to mesoscale sea surface temperature (SST) perturbations is investigated over the Agulhas Return Current during winter from a 1-month, high-resolution, three-dimensional simulation using the Weather Research and Forecasting (WRF) mesoscale model. A steady lower boundary condition for July 2002 is obtained using SST measurements from the Advanced Microwave Scanning Radiometer on the Earth Observing System (EOS)-Aqua satellite (AMSR-E). The WRF models' ability to accurately simulate the SST-induced surface wind response is demonstrated from a comparison with satellite surface wind observations from the SeaWinds scatterometer on the Quick Scatterometer (QuikSCAT) satellite. Relevant features of this simulation include a quasi-periodic distribution of mesoscale SST perturbations with spatial scales; similar to 200 km and strong winds that lead to a large surface sensible heat flux response, whose broad range of 80-100 W m(-2) between warm and cool SST perturbations is much larger than seen in most previous simulations of mesoscale wind-SST coupling.
This simulation provides the first realistic example of vertical turbulent redistribution of momentum driven by the SST-induced surface heating perturbations acting in concert with the SST-induced pressure gradients to accelerate near-surface flow toward warm water and decelerate near-surface flow toward cool water. This simulation is also the first example of a near-surface wind speed response to mesoscale SST perturbations that differs qualitatively and substantially from the vertically averaged MABL wind response. In the vertically averaged MABL momentum budget, the surface wind stress acts as a drag on the SST-induced perturbation flow as it is being accelerated by SST-induced pressure gradients. However, only in the middle and upper reaches of the MABL does the turbulent stress divergence act as a drag on the SST-induced winds perturbations in this simulation.
These mesoscale SST perturbations are also shown to modify the wind direction within the MABL. Dynamically, this is accomplished through SST-induced perturbations to the crosswind components of the pressure gradient, turbulent stress divergence, and the Coriolis force.
C1 [O'Neill, Larry W.] USN, Res Lab, Marine Meteorol Div, Monterey, CA 93943 USA.
[Esbensen, Steven K.; Thum, Nicolai; Samelson, Roger M.; Chelton, Dudley B.] Oregon State Univ, Coll Ocean & Atmospher Sci, Corvallis, OR 97331 USA.
[Chelton, Dudley B.] Oregon State Univ, Cooperat Inst Oceanog Satellite Studies, Corvallis, OR 97331 USA.
RP O'Neill, LW (reprint author), USN, Res Lab, Marine Meteorol Div, 7 Grace Hopper Ave,MS 2, Monterey, CA 93943 USA.
EM larry.oneill@nrlmry.navy.mil
FU NASA [NAS5-32965, 1283973]; AMSR-E Science Team; National Research
Council Research Associateship Award at the Naval Research Laboratory in
Monterey, California
FX We thank Chris Bretherton, Qingtao Song, and Eric Skyllingstad for
helpful discussions throughout the course of this analysis and Jim McCaa
for providing a preliminary version of the code implementing the
Grenier-Bretherton boundary layer parameterization scheme in WRF. We
thank Dr. Justin Small and one anonymous reviewer for providing thorough
and insightful comments that significantly clarified many of the results
and discussion presented here. The AMSR-E SST fields were obtained from
the Remote Sensing Systems and are sponsored by the NASA Earth Science
MEaSUREs DISCOVER Project and the AMSR-E Science Team. QuikSCAT swath
data were also obtained from the Remote Sensing Systems and are
sponsored by the NASA Ocean Vector Winds Science Team. This research was
supported by NASA Grant NAS5-32965 and Contract 1283973 from the NASA
Jet Propulsion Laboratory for funding of Ocean Vector Winds Science Team
activities. Part of this research was performed while the lead author
held a National Research Council Research Associateship Award at the
Naval Research Laboratory in Monterey, California.
NR 61
TC 36
Z9 36
U1 0
U2 15
PU AMER METEOROLOGICAL SOC
PI BOSTON
PA 45 BEACON ST, BOSTON, MA 02108-3693 USA
SN 0894-8755
J9 J CLIMATE
JI J. Clim.
PD FEB
PY 2010
VL 23
IS 3
BP 559
EP 581
DI 10.1175/2009JCLI2662.1
PG 23
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 553DT
UT WOS:000274346700005
ER
PT J
AU Sperling, LC
Hussey, S
Sorrells, T
Wang, JA
Darling, T
AF Sperling, Leonard C.
Hussey, Sean
Sorrells, Timothy
Wang, Ji-an
Darling, Thomas
TI Cytokeratin 75 expression in central, centrifugal, cicatricial alopecia
- new observations in normal and diseased hair follicles
SO JOURNAL OF CUTANEOUS PATHOLOGY
LA English
DT Article
ID FOLLICULAR DEGENERATION SYNDROME; KERATINS
AB Background: Premature desquamation of the inner root sheath (IRS) is an important histological marker for central, centrifugal, cicatricial alopecia (CCCA), and an inherently defective IRS may be responsible. Cytokeratin 75 (K75; formerly K6hf) is an appealing candidate for study because K75 is specifically expressed in the companion layer of the hair follicle, the interface for IRS desquamation. Also, K75 abnormalities have been found in other hair diseases bearing similarities to CCCA.
Methods: We used a commercially available antibody to K75 on formalin-fixed, paraffin-embedded tissue from clinically and histologically "normal" scalp (n=9); clinically diseased scalp from patients with CCCA (n=15); and clinically "normal" scalp from patients with CCCA (n=6).
Results: K75 expression disappears during the process of IRS desquamation, and loss of expression begins even when IRS desquamation is in its incipient phase. Also, K75 has a characteristic pattern of expression in telogen follicles.
Conclusions: K75 expression is closely associated with the process of desquamation of the IRS. This process occurs prematurely (below the isthmus) in many follicles from patients with, but not without, CCCA. K75 expression highlights premature desquamation of the IRS in CCCA, but may not be directly involved in disease pathogenesis.
Sperling LC, Hussey S, Sorrells T, Wang J-A, Darling T. Cytokeratin 75 expression in central, centrifugal, cicatricial alopecia - new observations in normal and diseased hair follicles.
C1 [Sperling, Leonard C.; Wang, Ji-an; Darling, Thomas] Uniformed Serv Univ Hlth Sci, Dept Dermatol, Bethesda, MD 20814 USA.
[Hussey, Sean] Natl Naval Med Ctr, Dept Pathol, Bethesda, MD USA.
[Sorrells, Timothy] Naval Hosp, Dept Lab, Camp Lejeune, NC USA.
RP Sperling, LC (reprint author), Uniformed Serv Univ Hlth Sci, Dept Dermatol, 4301 Jones Bridge Rd, Bethesda, MD 20814 USA.
EM lsperling@usuhs.mil
OI Darling, Thomas/0000-0002-5161-1974
NR 10
TC 9
Z9 9
U1 0
U2 4
PU WILEY-BLACKWELL PUBLISHING, INC
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 0303-6987
J9 J CUTAN PATHOL
JI J. Cutan. Pathol.
PD FEB
PY 2010
VL 37
IS 2
BP 243
EP 248
DI 10.1111/j.1600-0560.2009.01330.x
PG 6
WC Dermatology; Pathology
SC Dermatology; Pathology
GA 533ZN
UT WOS:000272865300008
PM 19614992
ER
PT J
AU Guise, GM
Goodell, GG
Imamura, GM
AF Guise, George M.
Goodell, Gary G.
Imamura, Glen M.
TI In Vitro Comparison of Three Electronic Apex Locators
SO JOURNAL OF ENDODONTICS
LA English
DT Article
DE Electronic Apex Locator; Elements; Precision Apex Locator; Root ZX II
ID ROOT ZX; CLINICAL-EVALUATION; APICAL FORAMEN; VIVO ACCURACY; LENGTH;
CONSTRICTION
AB Introduction: The purpose of this study was to compare the accuracy of the Root ZX II Apex Locator (RZX), the Elements Apex Locator (ELE), and the Precision Apex Locator (PAL). Methods: Forty single-rooted extracted teeth were decoronated and the root canals coronally flared. Actual canal lengths were determined by inserting a #10 file until the tip was visualized (12.8 x magnification) just within the apical foramina. Teeth were mounted in gelatin conducting medium and randomly tested with each electronic apex locator (EAL) to determine the electronic canal length. Differences between the electronic and actual canal lengths were calculated. Results: The mean differences were -0.02 mm, 0.13 mm, and 0.15 mm for the RZX, PAL, and ELE, respectively. One-way analysis of variance showed a highly significant difference among EALs (p = 0.003). Student-Newman-Keuls post hoc analysis found significant differences between the RZX and the PAL and between the RZX and the ELE at p < 0.05. No significant difference was noted between the PAL and the ELE. The proportion of electronic canal length measurements falling within +/- 0.5 mm of the actual canal lengths for the EALs was as follows: 97.5% for the RZX, 95% for the PAL, and 90% for the ELE. Conclusion: The RZX was the most accurate at locating the apical foramen compared with the ELF and the PAL. (J Endod 2010;36:279-281)
C1 [Guise, George M.; Goodell, Gary G.; Imamura, Glen M.] USN, Sch Postgrad Dent, Bethesda, MD 20084 USA.
RP Goodell, GG (reprint author), 12214 Hollow Tree Lane, Fairfax, VA 22030 USA.
EM gggoodell@aol.com
NR 24
TC 17
Z9 20
U1 0
U2 3
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 0099-2399
J9 J ENDODONT
JI J. Endod.
PD FEB
PY 2010
VL 36
IS 2
BP 279
EP 281
DI 10.1016/j.joen.2009.09.016
PG 3
WC Dentistry, Oral Surgery & Medicine
SC Dentistry, Oral Surgery & Medicine
GA 617KK
UT WOS:000279279400018
PM 20113790
ER
PT J
AU Huyer, SA
Dropkin, A
Dick, J
Beal, D
AF Huyer, Stephen A.
Dropkin, Amanda
Dick, James
Beal, David
TI A Method to Generate Propulsor Side Forces
SO JOURNAL OF FLUIDS ENGINEERING-TRANSACTIONS OF THE ASME
LA English
DT Article
DE blades; computational fluid dynamics; external flows; hydrodynamics;
Navier-Stokes equations; propulsion; rotors; stators; swirling flow;
underwater vehicles; vehicle dynamics; viscosity
AB A computational study was performed to investigate a method to generate vehicle maneuvering forces from a propulsor alone. A ducted, preswirl propulsor was configured with an upstream stator row and downstream rotor. During normal operation, the upstream stator blades are all situated at the same pitch angle and preswirl the flow into the propulsor while generating a roll moment to counter the moment produced by the rotor. By varying the pitch angles of the stator blade about the circumference, it is possible to both generate a mean stator side force and subsequently vary the axial velocity and swirl that is ingested into the propulsor. The rotor then generates a side force in response to the inflow. Both potential flow and fully viscous 3D Reynolds averaged Navier-Stokes (RANS) computations were used to predict the stator forces, velocity field, and rotor response. Potential flow methods were used for initial examination of a wide variety of stator configurations. The most promising were then modeled using RANS. The RANS inflow was then computed and used as velocity boundary conditions during rotor blade design using potential flow methods. Blade parameters including blade number, rake, skew, and a combination of the two were varied to characterize their effects. RANS was used to then validate the final propulsor design. Computations demonstrated that total side force coefficients on the order of 0.1 and moment coefficients about the stator leading edge of 0.066 could be generated by the propulsor alone. This translates to an additional 50% control authority at 3 kn for current Navy 21(') unmanned undersea vehicles.
C1 [Huyer, Stephen A.; Dropkin, Amanda; Dick, James; Beal, David] USN, Undersea Warfare Ctr, Newport, RI 02874 USA.
RP Huyer, SA (reprint author), USN, Undersea Warfare Ctr, Code 8233,Bldg 1302-2, Newport, RI 02874 USA.
EM stephen.huyer@navy.mil
FU Naval Undersea Warfare Center; Office of Naval Research University
Laboratory [N0001408WX20425]
FX This work was sponsored by the Naval Undersea Warfare Center, Internal
Research Program, with Dr. Anthony Ruffa as the program manager and the
Office of Naval Research University Laboratory Initiative Program under
Contract No. N0001408WX20425, with Dr. Kam Ng as the program sponsor.
NR 10
TC 4
Z9 4
U1 0
U2 1
PU ASME-AMER SOC MECHANICAL ENG
PI NEW YORK
PA THREE PARK AVE, NEW YORK, NY 10016-5990 USA
SN 0098-2202
J9 J FLUID ENG-T ASME
JI J. Fluids Eng.-Trans. ASME
PD FEB
PY 2010
VL 132
IS 2
AR 021101
DI 10.1115/1.4000745
PG 9
WC Engineering, Mechanical
SC Engineering
GA 556WC
UT WOS:000274623000001
ER
PT J
AU Andreas, EL
Persson, POG
Jordan, RE
Horst, TW
Guest, PS
Grachev, AA
Fairall, CW
AF Andreas, Edgar L.
Persson, P. Ola G.
Jordan, Rachel E.
Horst, Thomas W.
Guest, Peter S.
Grachev, Andrey A.
Fairall, Christopher W.
TI Parameterizing Turbulent Exchange over Sea Ice in Winter
SO JOURNAL OF HYDROMETEOROLOGY
LA English
DT Article
ID ATMOSPHERIC BOUNDARY-LAYER; SCALAR TRANSFER-COEFFICIENTS; BULK
AERODYNAMIC ALGORITHMS; CLIMATE SYSTEM MODEL; WESTERN WEDDELL SEA;
SURFACE HEAT-BUDGET; DRAG COEFFICIENTS; ROUGHNESS LENGTH; SONIC
ANEMOMETER; STATION-WEDDELL
AB The Surface Heat Budget of the Arctic Ocean (SHEBA) experiment produced 18 000 h of turbulence data from the atmospheric surface layer over sea ice while the ice camp drifted for a year in the Beaufort Gyre. Multiple sites instrumented during SHEBA suggest only two aerodynamic seasons over sea ice. In "winter'' (October 1997 through 14 May 1998 and 15 September 1998 through the end of the SHEBA deployment in early October 1998), the ice was compact and snow covered, and the snow was dry enough to drift and blow. In "summer'' (15 May through 14 September 1998 in this dataset), the snow melted, and melt ponds and leads appeared and covered as much as 40% of the surface with open water. This paper develops a bulk turbulent flux algorithm to explain the winter data. This algorithm predicts the surface fluxes of momentum, and sensible and latent heat from more readily measured or modeled quantities. A main result of the analysis is that the roughness length for wind speed z(0) does not depend on the friction velocity u(*) in the drifting snow regime (u(*) >= 0.30 m s(-1)) but, rather, is constant in the SHEBA dataset at about 2.3 x 10(-4) m. Previous analyses that found z(0) to increase with u(*) during drifting snow may have suffered from fictitious correlation because u(*) also appears in z(0). The present analysis mitigates this fictitious correlation by plotting measured z(0) against the corresponding u(*) computed from the bulk flux algorithm. Such plots, created with data from six different SHEBA sites, show z(0) to be independent of the bulk u(*) for 0.15, u(*) <= 0.65 m s(-1). This study also evaluates the roughness lengths for temperature z(T) and humidity z(Q), incorporates new profile stratification corrections for stable stratification, addresses the singularities that often occur in iterative flux algorithms in very light winds, and includes an extensive analysis of whether atmospheric stratification affects z(0), z(T), and z(Q).
C1 [Andreas, Edgar L.] NW Res Associates Inc, Seattle Div, Lebanon, NH 03766 USA.
[Persson, P. Ola G.; Grachev, Andrey A.; Fairall, Christopher W.] NOAA, Earth Syst Res Lab, Boulder, CO USA.
[Persson, P. Ola G.; Grachev, Andrey A.] Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA.
[Jordan, Rachel E.] Jordan Environm Modeling PC, Hanover, NH USA.
[Horst, Thomas W.] Natl Ctr Atmospher Res, Boulder, CO 80307 USA.
[Guest, Peter S.] USN, Postgrad Sch, Monterey, CA USA.
RP Andreas, EL (reprint author), NW Res Associates Inc, Seattle Div, 25 Eagle Ridge, Lebanon, NH 03766 USA.
EM eandreas@nwra.com
OI GRACHEV, ANDREY/0000-0002-7143-0820
FU The U.S. National Science Foundation (NSF) [06-11942]; National
Aeronautics and Space Administration [NNX07AL77G]
FX The U.S. National Science Foundation (NSF) supported our initial
participation in SHEBA with awards to the U.S. Army Cold Regions
Research and Engineering Laboratory, NOAA's Environmental Technology
Laboratory (now the Earth System Research Laboratory), the Naval
Postgraduate School, and the Cooperative Institute for Research in
Environmental Sciences. NSF also supported our use of the Flux-PAM
stations from the facilities pool at the National Center for Atmospheric
Research. Both NSF (Award 06-11942) and the National Aeronautics and
Space Administration (Award NNX07AL77G) supported ELA at NorthWest
Research Associates during the preparation of this manuscript. Lastly,
we thank William Gutowski and three anonymous reviewers for their
thoughtful comments on this manuscript.
NR 78
TC 36
Z9 36
U1 1
U2 11
PU AMER METEOROLOGICAL SOC
PI BOSTON
PA 45 BEACON ST, BOSTON, MA 02108-3693 USA
SN 1525-755X
J9 J HYDROMETEOROL
JI J. Hydrometeorol.
PD FEB
PY 2010
VL 11
IS 1
BP 87
EP 104
DI 10.1175/2009JHM1102.1
PG 18
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 566BN
UT WOS:000275344800005
ER
PT J
AU Seaver, M
Aktas, E
Trickey, ST
AF Seaver, Mark
Aktas, Engin
Trickey, Stephen T.
TI Quantitative Detection of Low Energy Impact Damage in a Sandwich
Composite Wing
SO JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES
LA English
DT Article; Proceedings Paper
CT 1st ASME Smart Materials, Adaptive Structurres and Intelligent Systems
Symposium on Structural Health Monitoring
CY OCT 28-30, 2008
CL Ellicott City, MD
SP ASME
DE fiber bragg grating; structural health monitoring; impact damage; ROC
curves; bicoherence; nonlinearity; sandwich composite; wing; probability
of detection; probability of false alarms
ID BISPECTRAL ANALYSIS; JOINT
AB This work describes damage detection in a foam core composite wing (1320mm x 152.4 mm x 13.4 mm) following a series of low energy impacts. Thirteen impacts (6-8 J deposited energy) were applied at adjacent locations approximately 1/4 of the way out from the wing center. Following every one or two impacts, the wing was tested using static tip deflection and dynamic vibrational excitation. Static and dynamic strains were measured using eight fiber Bragg grating sensors. Dynamic acceleration was also monitored using three conventional accelerometers. The estimated bicoherence was used to detect the presence of damage-induced non-linearity in time-series data recorded from each sensor. Receiver operating characteristic (ROC) curves were constructed for each sensor based on 15 or more dynamic measurements made for each damage case. The ROC curves provide a quantitative, statistical approach to evaluating the damage detection capabilities of the various sensors.
C1 [Seaver, Mark; Aktas, Engin; Trickey, Stephen T.] USN, Res Lab, Washington, DC 20375 USA.
RP Seaver, M (reprint author), USN, Res Lab, Code 5673, Washington, DC 20375 USA.
EM seaver@nrl.navy.mil
NR 28
TC 6
Z9 6
U1 0
U2 4
PU SAGE PUBLICATIONS LTD
PI LONDON
PA 1 OLIVERS YARD, 55 CITY ROAD, LONDON EC1Y 1SP, ENGLAND
SN 1045-389X
J9 J INTEL MAT SYST STR
JI J. Intell. Mater. Syst. Struct.
PD FEB
PY 2010
VL 21
IS 3
BP 297
EP 308
DI 10.1177/1045389X09347020
PG 12
WC Materials Science, Multidisciplinary
SC Materials Science
GA 563XA
UT WOS:000275169300009
ER
PT J
AU Utela, BR
Storti, D
Anderson, RL
Ganter, M
AF Utela, Ben R.
Storti, Duane
Anderson, Rhonda L.
Ganter, Mark
TI Development Process for Custom Three-Dimensional Printing (3DP) Material
Systems
SO JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING-TRANSACTIONS OF THE
ASME
LA English
DT Article
DE ceramics; three-dimensional printing
ID CERAMICS; SUSPENSIONS; ALUMINA; BINDERS
AB The development of a new material system for three-dimensional printing (3DP) can be difficult without experience in the field, since the flexibility of the 3DP process implies a large number of material and processing parameters. This paper presents a detailed explanation of the steps involved in developing specific implementations of 3DP, along with tools and insight for each step. This material system development procedure should provide a clear understanding of the 3DP process steps and development decisions to help the user take advantage of the considerable flexibility of 3DP and expedite a new system development. The paper concludes with a demonstration of how the guidance provided is applied in the development of fully dense ceramic dental copings; a research problem uniquely suited to the flexibility of 3DP.
C1 [Utela, Ben R.] Univ Washington, Dept Mech Bioengn, Seattle, WA 98195 USA.
[Storti, Duane; Ganter, Mark] Univ Washington, Dept Mech Engn, Seattle, WA 98195 USA.
[Anderson, Rhonda L.] USN, Naval Surface Warfare Ctr, Panama City Div NSWC PCD, Panama City, FL 32407 USA.
RP Utela, BR (reprint author), Univ Washington, Dept Mech Bioengn, Box 355061,1705 NE Pacific St, Seattle, WA 98195 USA.
EM butela@u.washington.edu; storti@u.washington.edu;
rhonda.anderson@navy.mil; ganter@u.washington.edu
NR 50
TC 2
Z9 2
U1 5
U2 44
PU ASME-AMER SOC MECHANICAL ENG
PI NEW YORK
PA THREE PARK AVE, NEW YORK, NY 10016-5990 USA
SN 1087-1357
J9 J MANUF SCI E-T ASME
JI J. Manuf. Sci. Eng.-Trans. ASME
PD FEB
PY 2010
VL 132
IS 1
AR 011008
DI 10.1115/1.4000713
PG 9
WC Engineering, Manufacturing; Engineering, Mechanical
SC Engineering
GA 555PE
UT WOS:000274524200008
ER
PT J
AU Salvia, JC
Melamud, R
Chandorkar, SA
Lord, SF
Kenny, TW
AF Salvia, James C.
Melamud, Renata
Chandorkar, Saurabh A.
Lord, Scott F.
Kenny, Thomas W.
TI Real-Time Temperature Compensation of MEMS Oscillators Using an
Integrated Micro-Oven and a Phase-Locked Loop
SO JOURNAL OF MICROELECTROMECHANICAL SYSTEMS
LA English
DT Article
DE Frequency stability; microresonators; oscillators; phase-locked loops
(PLLs)
ID RESONATORS; ACCELEROMETERS
AB We present a new temperature compensation system for microresonator-based frequency references. It consists of a phase-locked loop (PLL) whose inputs are derived from two microresonators with different temperature coefficients of frequency. The resonators are suspended within an encapsulated cavity and are heated to a constant temperature by the PLL controller, thereby achieving active temperature compensation. We show repeated real-time measurements of three 1.2-MHz prototypes that achieve a frequency stability of +/- 1 ppm from -20 degrees C to + 80 degrees C, as well as a technique to reduce steady-state frequency errors to +/- 0.05 ppm using multipoint calibration. [2009-0074]
C1 [Salvia, James C.; Chandorkar, Saurabh A.] Stanford Univ, Dept Elect Engn, Stanford, CA 94305 USA.
[Melamud, Renata] SiTime Corp, Sunnyvale, CA 94085 USA.
[Lord, Scott F.] USN, Nucl Power Sch, Goose Creek, SC 29445 USA.
[Kenny, Thomas W.] Stanford Univ, Dept Mech Engn, Stanford, CA 94305 USA.
RP Salvia, JC (reprint author), Stanford Univ, Dept Elect Engn, Stanford, CA 94305 USA.
EM jsalvia@stanford.edu
FU Defense Advanced Research Projects Agency Harsh Environment Robust
Micromechanical Technology [ONRN66001-03-1-8942]; National Defense
Science and Engineering Graduate Fellowship; Robert Bosch Corporation
Palo Alto Research and Technology Center; Stanford University Center for
Integrated Systems Seed Grant; National Science Foundation [ECS-9731294]
FX This work was supported in part by the Defense Advanced Research
Projects Agency Harsh Environment Robust Micromechanical Technology
under Grant ONRN66001-03-1-8942, in part by a National Defense Science
and Engineering Graduate Fellowship, in part by the Robert Bosch
Corporation Palo Alto Research and Technology Center, in part by a
Stanford University Center for Integrated Systems Seed Grant, and in
part by the National Nanofabrication Users Network facilities funded by
the National Science Foundation under Award ECS-9731294. Subject Editor
G. K. Fedder.
NR 33
TC 78
Z9 79
U1 4
U2 24
PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
PI PISCATAWAY
PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA
SN 1057-7157
J9 J MICROELECTROMECH S
JI J. Microelectromech. Syst.
PD FEB
PY 2010
VL 19
IS 1
BP 192
EP 201
DI 10.1109/JMEMS.2009.2035932
PG 10
WC Engineering, Electrical & Electronic; Nanoscience & Nanotechnology;
Instruments & Instrumentation; Physics, Applied
SC Engineering; Science & Technology - Other Topics; Instruments &
Instrumentation; Physics
GA 551MM
UT WOS:000274213700019
ER
PT J
AU Booth-Kewley, S
Highfill-McRoy, RM
Larson, GE
Garland, CF
AF Booth-Kewley, Stephanie
Highfill-McRoy, Robyn M.
Larson, Gerald E.
Garland, Cedric F.
TI Psychosocial Predictors of Military Misconduct
SO JOURNAL OF NERVOUS AND MENTAL DISEASE
LA English
DT Article
DE Antisocial behavior; psychiatric disorders; military populations;
misconduct; Iraq/Afghanistan wars; veterans; combat
ID POSTTRAUMATIC-STRESS-DISORDER; ADVERSE CHILDHOOD EXPERIENCES;
MENTAL-HEALTH PROBLEMS; COMBAT EXPOSURE; INTERNALIZING SUBTYPES; EARLY
ADOLESCENCE; VIETNAM VETERANS; US MILITARY; GULF-WAR; DELINQUENCY
AB The objective of this longitudinal study was to determine psychosocial predictors of military misconduct in a cohort of Marine Corps war veterans. The study included data from 20,746 male Marines who completed a life history questionnaire during initial basic training and were subsequently deployed to a combat zone. Associations between psychosocial variables, psychiatric diagnoses, and subsequent misconduct outcomes were analyzed using Cox proportional hazards regression. The strongest predictors of misconduct outcomes (bad conduct discharges and military demotions) were psychiatric diagnoses and young age at first combat deployment. The results indicate that combat-related psychological disorders may manifest in numerous harmful ways, including impulsive, disruptive, and antisocial behavior. We recommend that the association between misconduct and psychiatric disorders be more explicitly acknowledged in research and treatment efforts involving military war veterans and other trauma victims.
C1 [Booth-Kewley, Stephanie; Highfill-McRoy, Robyn M.; Larson, Gerald E.] USN, Hlth Res Ctr, Dept Behav Sci & Epidemiol, San Diego, CA 92106 USA.
[Garland, Cedric F.] Univ Calif San Diego, Dept Family & Prevent Med, Moores UCSD Canc Ctr, San Diego, CA 92103 USA.
RP Booth-Kewley, S (reprint author), USN, Hlth Res Ctr, Dept Behav Sci & Epidemiol, 140 Sylvester Rd, San Diego, CA 92106 USA.
EM stephanie.kewley@med.navy.mil
FU US Army Medical Research and Material Command [60817]
FX Supported by US Army Medical Research and Material Command under Work
Unit 60817.
NR 40
TC 13
Z9 13
U1 1
U2 3
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0022-3018
J9 J NERV MENT DIS
JI J. Nerv. Ment. Dis.
PD FEB
PY 2010
VL 198
IS 2
BP 91
EP 98
DI 10.1097/NMD.0b013e3181cc45e9
PG 8
WC Clinical Neurology; Psychiatry
SC Neurosciences & Neurology; Psychiatry
GA 558LG
UT WOS:000274743200002
PM 20145482
ER
PT J
AU Liao, KS
Sutto, TE
Andreoli, E
Ajayan, P
McGrady, KA
Curran, SA
AF Liao, Kang-Shyang
Sutto, Thomas E.
Andreoli, Enrico
Ajayan, Pulickel
McGrady, Karen A.
Curran, Seamus A.
TI Nano-sponge ionic liquid-polymer composite electrolytes for solid-state
lithium power sources
SO JOURNAL OF POWER SOURCES
LA English
DT Article
DE Lithium ion battery; Solid polymer gel electrolytes; Imidazolium ionic
liquid
ID GEL ELECTROLYTE; BATTERIES; SYSTEMS; BIS(FLUOROSULFONYL)IMIDE;
PERFORMANCE; NANOTUBES; CELLS
AB Solid polymer gel electrolytes composed of 75 wt.% of the ionic liquid, 1-n-butyl-2,3-dimethylimidazolium bis-trifluoromethanesulfonylimide with 1.0 M lithium bis-trifluoromethanesulfonylimide and 25 wt.% (polyvinylidenedifluoro-hedafluoropropene) are characterized as the electrolyte/separator in solid-state lithium batteries. The ionic conductivity of these gels ranges from 1.5 to 2.0 mS cm(-1), which is several orders of magnitude more conductive than any of the more commonly used solid polymers, and comparable to the best solid gel electrolytes currently used in industry. TGA indicates that these polymer gel electrolytes are thermally stable to over 280 degrees C, and do not begin to thermally decompose until over 300 degrees C; exhibiting a significant advancement in the safety of lithium batteries. Atomic force microscopy images of these solid thin films indicate that these polymer gel electrolytes have the structure of nano-sponges, with a sub-micron pore size. For these thin film batteries, 150 charge-discharge cycles are run for Li(x)CoO(2) where x is cycled between 0.95 down to 0.55. Minimal internal resistance effects are observed over the charging cycles, indicating the high ionic conductivity of the ionic liquid solid polymer gel electrolyte. The overall cell efficiency is approximately 98%, and no significant loss in battery efficiency is observed over the 150 cycles. (C) 2009 Elsevier B.V. All rights reserved.
C1 [Liao, Kang-Shyang; Andreoli, Enrico; Curran, Seamus A.] Univ Houston, Dept Phys, Houston, TX 77004 USA.
[Sutto, Thomas E.] USN, Res Labs DC, Div Mat Sci & Technol, Washington, DC 20375 USA.
[Ajayan, Pulickel] Rice Univ, Dept Mat Engn, Houston, TX 77005 USA.
[McGrady, Karen A.] Marine Corps Syst Command, Garrisonville, VA 22463 USA.
RP Liao, KS (reprint author), Univ Houston, Dept Phys, 617 Sci & Res Bldg 1, Houston, TX 77004 USA.
EM kliao@mail.uh.edu
OI Andreoli, Enrico/0000-0002-1207-2314
NR 26
TC 20
Z9 21
U1 2
U2 33
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0378-7753
J9 J POWER SOURCES
JI J. Power Sources
PD FEB 1
PY 2010
VL 195
IS 3
BP 867
EP 871
DI 10.1016/j.jpowsour.2009.08.031
PG 5
WC Chemistry, Physical; Electrochemistry; Energy & Fuels; Materials
Science, Multidisciplinary
SC Chemistry; Electrochemistry; Energy & Fuels; Materials Science
GA 511NJ
UT WOS:000271171900026
ER
PT J
AU Mott, PH
Roland, CM
AF Mott, P. H.
Roland, C. M.
TI Response to "Comment on paper 'The bulk modulus and Poisson's ratio of
"incompressible" materials'"
SO JOURNAL OF SOUND AND VIBRATION
LA English
DT Editorial Material
ID RUBBER
AB The incorrectness of the common assumption that rubbery polymers are incompressible does not preclude its yielding accurate determinations of the elastic modulus for nonlinear deformations. Published by Elsevier Ltd.
C1 [Mott, P. H.; Roland, C. M.] USN, Res Lab, Washington, DC 20375 USA.
RP Mott, PH (reprint author), USN, Res Lab, Code 6120, Washington, DC 20375 USA.
EM peter.mott@nrl.navy.mil
NR 7
TC 3
Z9 3
U1 1
U2 15
PU ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
PI LONDON
PA 24-28 OVAL RD, LONDON NW1 7DX, ENGLAND
SN 0022-460X
J9 J SOUND VIB
JI J. Sound Vibr.
PD FEB 1
PY 2010
VL 329
IS 3
BP 368
EP 369
DI 10.1016/j.jsv.2009.10.008
PG 2
WC Acoustics; Engineering, Mechanical; Mechanics
SC Acoustics; Engineering; Mechanics
GA 526TD
UT WOS:000272316000011
ER
PT J
AU Williams, EG
Takashima, K
AF Williams, Earl G.
Takashima, Kazuhiro
TI Vector intensity reconstructions in a volume surrounding a rigid
spherical microphone array
SO JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
LA English
DT Article
DE acoustic field; acoustic holography; acoustic intensity; acoustic noise;
engines; Fourier analysis; harmonics; microphone arrays; structural
acoustics; vehicle dynamics; vibrations
ID PLANE-WAVE DECOMPOSITION; SOUND-FIELD; DESIGN
AB A technique is described to image the vector intensity in the near field of a spherical array of microphones flush mounted in a rigid sphere. The spatially measured pressure is decomposed into Fourier harmonics in order to reconstruct the volumetric vector intensity outside the sphere. The theory for this reconstruction is developed in this paper. The resulting intensity images are very successful at locating and quantifying unknown exterior acoustic sources, ideal for application in noise control problems in interior spaces such as automobiles and airplanes. Arrays of varying numbers of microphones and radii are considered and compared and errors are computed for both theory and experiment. It is demonstrated that this is an ill-posed problem below a cutoff frequency depending on array design, requiring Tikhonov regularization below cutoff. There is no low frequency limit on operation, although the signal-to-noise ratio is the determining factor for high-spatial resolution at low frequencies. It is shown that the upper frequency limit is set by the number of microphones in the array and is independent of noise. The accuracy of the approach is assessed by considering the exact solution for the scattering of a point source by a rigid sphere. Several field experiments are presented to demonstrate the utility of the technique. In these experiments, the partial field decomposition technique is used and holograms of multiple exterior sources are separated and their individual volumetric intensity fields imaged. In this manner, the intensity fields of two uncorrelated tube sources in an anechoic chamber are isolated from one another and separated intensity maps are obtained from over a broad frequency range. In a practical application, the vector intensity field in the interior of an automobile cabin is mapped at the fundamental of the engine vibration using the rigid sphere positioned at the driver's head. The source regions contributing to the interior cabin noise are identified.
C1 [Williams, Earl G.] USN, Res Lab, Acoust Div, Washington, DC 20375 USA.
[Takashima, Kazuhiro] Nittobo Acoust Engn Co Ltd, Tokyo, Japan.
RP Williams, EG (reprint author), USN, Res Lab, Acoust Div, Washington, DC 20375 USA.
EM earl.williams@nrl.navy.mil
FU U.S. Office of Naval Research
FX This work was supported by the U.S. Office of Naval Research.
NR 16
TC 13
Z9 15
U1 0
U2 4
PU ACOUSTICAL SOC AMER AMER INST PHYSICS
PI MELVILLE
PA STE 1 NO 1, 2 HUNTINGTON QUADRANGLE, MELVILLE, NY 11747-4502 USA
SN 0001-4966
J9 J ACOUST SOC AM
JI J. Acoust. Soc. Am.
PD FEB
PY 2010
VL 127
IS 2
BP 773
EP 783
DI 10.1121/1.3278591
PG 11
WC Acoustics; Audiology & Speech-Language Pathology
SC Acoustics; Audiology & Speech-Language Pathology
GA 552VR
UT WOS:000274322200029
PM 20136200
ER
PT J
AU Patil, R
Clifton, GT
Holmes, JP
Amin, A
Carmichael, MG
Gates, JD
Benavides, LH
Hueman, MT
Ponniah, S
Peoples, GE
AF Patil, Ritesh
Clifton, Guy T.
Holmes, Jarrod P.
Amin, Asna
Carmichael, Mark G.
Gates, Jeremy D.
Benavides, Linda H.
Hueman, Matthew T.
Ponniah, Sathibalan
Peoples, George E.
TI Clinical and Immunologic Responses of HLA-A3(+) Breast Cancer Patients
Vaccinated with the HER2/neu-Derived Peptide Vaccine, E75, in a Phase
I/II Clinical Trial
SO JOURNAL OF THE AMERICAN COLLEGE OF SURGEONS
LA English
DT Article
ID CYTOTOXIC T-LYMPHOCYTES; MHC CLASS-I; OVARIAN-CANCER;
HEPATOCELLULAR-CARCINOMA; PROGNOSTIC-FACTORS; METASTATIC BREAST;
HER-2/NEU; ANTIGEN; IDENTIFICATION; HLA
AB BACKGROUND: We have treated disease-free breast cancer patients with an HER2/neu-derived peptide, E75, as an adjuvant vaccine. E75 was originally described as HLA-A2-restricted and has been previously tested in this population. Based on computer modeling, E75 is predicted to bind to HLA-A3, and preclinical data support this. We conducted a clinical trial of E75 in HLA-A3(+), A2(-) (A3) patients.
STUDY DESIGN: Disease-free breast cancer patients were enrolled after standard therapy in phase I/II trials. M patients were enrolled in parallel with A2 patients and vaccinated with E75 and granulocyte-macrophage colony-stimulating factor immunoadjuvant. A2(-), A3(-) patients were followed as controls. Toxicities were graded. Immunologic responses were assessed by delayed-type hypersensitivity reactions and E75-specific interferon-gamma enzyme-linked immunosorbent spot assay. Clinical recurrences were documented.
RESULTS: Thirteen A3 patients completed the vaccine schedule. Clinicopathologic features were similar between A3, A2, and control patients, except for more HER2/neu-overexpressing tumors in the A2 group and more estrogen-receptor/progesterone-receptor-negative tumors in A2 and A3 groups. Toxicity profiles and postvaccination delayed-type hypersensitivity were similar in A3 and A2 patients. Enzyme-linked immunosorbent spot assay results varied, but A3 patients' median spots increased pre- to postvaccination (p = 0.2). Recurrences were lower in the A3 group (7.7%) at 30-month median follow-up compared with published recurrence in A2-vaccinated (8.3%) and control groups (14.8%) at 26-month median follow-up.
CONCLUSIONS: HLA restriction limits potential use of peptide-based cancer vaccines. This trial demonstrates that HLA-A3 patients respond similarly to E75 vaccination as HLA-A2 patients, suggesting the potential use of the E75 vaccine in up to 76% of the population. (J Am Coll Surg 2010;210: 140-147. Published by Elsevier Inc. on behalf of the American College of Surgeons)
C1 [Peoples, George E.] Brooke Army Med Ctr, Dept Surg, Gen Surg Serv, Ft Sam Houston, TX 78234 USA.
[Patil, Ritesh] Windber Med Ctr, Joyce Murtha Breast Care Ctr, Windber, PA USA.
[Holmes, Jarrod P.] USN, Dept Hematol & Med Oncol, Med Ctr, San Diego, CA 92152 USA.
[Amin, Asna; Carmichael, Mark G.; Hueman, Matthew T.; Ponniah, Sathibalan; Peoples, George E.] Uniformed Serv Univ Hlth Sci, Dept Surg, Canc Vaccine Dev Program, US Mil Canc Inst,Dept Surg, Bethesda, MD 20814 USA.
RP Peoples, GE (reprint author), Brooke Army Med Ctr, Dept Surg, Gen Surg Serv, 3851 Roger Brooke Dr, Ft Sam Houston, TX 78234 USA.
EM george.peoples@amedd.army.mil
FU United States Military Cancer Institute; Department of Surgery;
Uniformed Services University of the Health Sciences; Department of
Clinical Investigation, Walter Reed Army Medical Center, Bethesda, MD
FX This study was supported by the United States Military Cancer Institute,
Department of Surgery, Uniformed Services University of the Health
Sciences, and the Department of Clinical Investigation, Walter Reed Army
Medical Center, Bethesda, MD.
NR 40
TC 16
Z9 16
U1 0
U2 6
PU ELSEVIER SCIENCE INC
PI NEW YORK
PA 360 PARK AVE SOUTH, NEW YORK, NY 10010-1710 USA
SN 1072-7515
J9 J AM COLL SURGEONS
JI J. Am. Coll. Surg.
PD FEB
PY 2010
VL 210
IS 2
BP 140
EP 147
DI 10.1016/j.jamcollsurg.2009.10.022
PG 8
WC Surgery
SC Surgery
GA 617KP
UT WOS:000279279900002
PM 20113933
ER
PT J
AU Booth-Kewley, S
Larson, GE
Highfill-McRoy, RM
Garland, CF
Gaskin, TA
AF Booth-Kewley, Stephanie
Larson, Gerald E.
Highfill-McRoy, Robyn M.
Garland, Cedric F.
Gaskin, Thomas A.
TI Correlates of Posttraumatic Stress Disorder Symptoms in Marines Back
From War
SO JOURNAL OF TRAUMATIC STRESS
LA English
DT Article
ID MENTAL-HEALTH PROBLEMS; US MILITARY PERSONNEL; PERSIAN-GULF-WAR;
PSYCHOMETRIC PROPERTIES; PTSD CHECKLIST; DEPLOYMENT STRESSORS; VIETNAM
VETERANS; ZONE STRESSORS; RISK-FACTORS; FOLLOW-UP
AB The effect of combat and operational stress on the mental health of military personnel is a major concern. The objective of this study was to identify factors associated with possible posttraumatic stress disorder (PTSD). A questionnaire was completed by 1,569 Marines who deployed in support of conflicts in Iraq and Afghanistan (2002-2007). Using the PTSD Checklist with a cutoff score of 44, 17.1 % of the sainple screened positive for possible PTSD. of 9 demographic and psychosocial factors examined in relation to MD, 4 were significant in a multivariate analysis: deployment-related stressors, combat exposure, marital status, and education. Deployment-related stressors bad a stronger association with PT D than any other variable. This is an important finding because deployment-related stressors are potentially modifiable.
C1 [Booth-Kewley, Stephanie] USN, Hlth Res Ctr, Behav Sci & Epidemiol Dept, San Diego, CA 92106 USA.
[Larson, Gerald E.] Univ Calif San Diego, Dept Family & Prevent Med, La Jolla, CA 92093 USA.
[Larson, Gerald E.] Univ Calif San Diego, Moores UCSD Canc Ctr, La Jolla, CA 92093 USA.
[Gaskin, Thomas A.] US Marine Corps, Headquarters, Combat Operat Stress Control, Quantico, VA USA.
RP Booth-Kewley, S (reprint author), USN, Hlth Res Ctr, Behav Sci & Epidemiol Dept, San Diego, CA 92106 USA.
EM stephanie.kewley@med.navy.mil
NR 33
TC 34
Z9 34
U1 1
U2 4
PU WILEY-BLACKWELL
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 0894-9867
J9 J TRAUMA STRESS
JI J. Trauma Stress
PD FEB
PY 2010
VL 23
IS 1
BP 69
EP 77
DI 10.1002/jts.20485
PG 9
WC Psychology, Clinical; Psychiatry
SC Psychology; Psychiatry
GA 571FW
UT WOS:000275738100010
PM 20104587
ER
PT J
AU Kolel-Veetil, MK
Keller, TM
AF Kolel-Veetil, Manoj K.
Keller, Teddy M.
TI Organometallic Routes into the Nanorealms of Binary Fe-Si Phases
SO MATERIALS
LA English
DT Review
DE iron; silicide; organometallic; Fe(5)Si(3); Fe(3)Si; FeSi; FeSi(2);
ferromagnet; Kondo; GMR; magnetoresistance; SLS; VLS
ID CHEMICAL-VAPOR-DEPOSITION; TRANSITION-METAL SILICIDES; LIQUID-SOLID
MECHANISM; MOLECULAR-BEAM EPITAXY; BETA-FESI2 THIN-FILM;
MAGNETIC-PROPERTIES; POLYMER PRECURSORS; CARBON NANOTUBES; SYNTHETIC
ROUTES; FESI2 FILMS
AB The Fe-Si binary system provides several iron silicides that have varied and exceptional material properties with applications in the electronic industry. The well known Fe-Si binary silicides are Fe(3)Si, Fe(5)Si(3), FeSi, alpha-FeSi(2) and beta-FeSi(2). While the iron-rich silicides Fe3Si and Fe5Si3 are known to be room temperature ferromagnets, the stoichiometric FeSi is the only known transition metal Kondo insulator. Furthermore, Fe5Si3 has also been demonstrated to exhibit giant magnetoresistance (GMR). The silicon-rich beta-FeSi(2) is a direct band gap material usable in light emitting diode (LED) applications. Typically, these silicides are synthesized by traditional solid-state reactions or by ion beam-induced mixing (IBM) of alternating metal and silicon layers. Alternatively, the utilization of organometallic compounds with reactive transition metal (Fe)-carbon bonds has opened various routes for the preparation of these silicides and the silicon-stabilized bcc- and fcc-Fe phases contained in the Fe-Si binary phase diagram. The unique interfacial interactions of carbon with the Fe and Si components have resulted in the preferential formation of nanoscale versions of these materials. This review will discuss such reactions.
C1 [Kolel-Veetil, Manoj K.; Keller, Teddy M.] USN, Res Lab, Div Chem, Adv Mat Sect, Washington, DC 20375 USA.
RP Kolel-Veetil, MK (reprint author), USN, Res Lab, Div Chem, Adv Mat Sect, Washington, DC 20375 USA.
EM manoj.kolel-veetil@nrl.navy.mil; teddy.keller@nrl.navy.mil
FU Office of Naval Research
FX The authors thank the Office of Naval Research for the financial support
of this work.
NR 114
TC 11
Z9 13
U1 4
U2 30
PU MDPI AG
PI BASEL
PA POSTFACH, CH-4005 BASEL, SWITZERLAND
SN 1996-1944
J9 MATERIALS
JI Materials
PD FEB
PY 2010
VL 3
IS 2
BP 1049
EP 1088
DI 10.3390/ma3021049
PG 40
WC Materials Science, Multidisciplinary
SC Materials Science
GA 864LA
UT WOS:000298240300015
ER
PT J
AU Nichols, JM
Murphy, KD
AF Nichols, J. M.
Murphy, K. D.
TI Modeling and detection of delamination in a composite beam: A
polyspectral approach
SO MECHANICAL SYSTEMS AND SIGNAL PROCESSING
LA English
DT Article
DE Delamination; Polyspectra; Bispectrum; Trispectrum; Composite; Receiver
operating characteristic curve
ID BISPECTRAL ANALYSIS; DAMAGE DETECTION; MULTILAYER COMPOSITES;
NONLINEAR-SYSTEMS; FUNCTIONAL SERIES; ORDER; IDENTIFICATION;
TRISPECTRUM; FEATURES; SPECTRA
AB This work considers the difficult problem of detecting delamination in a composite beam structure based on a polyspectral analysis of the structure's vibrational response. First, a low-dimensional model of the structure is presented that captures the delamination-induced nonlinearity and shows how it influences the beam's dynamic response. A Volterra series solution is then used to approximate the nonlinear beam response. The associated Volterra kernels are derived and then substituted into previously obtained expressions for the power spectral, auto-bispectral and auto-trispectral density functions for multi-degree-of-freedom systems subject to Gaussian distributed, random inputs. The influence of the delamination on the polyspectra is then explored with respect to both delamination size and depth. Specifically, it is shown how the dominant peaks of the polyspectra relate directly to these delamination parameters. The limits of polyspectral approaches to delamination detection are presented. Published by Elsevier Ltd.
C1 [Nichols, J. M.] USN, Res Lab, Washington, DC 20375 USA.
[Murphy, K. D.] Univ Connecticut, Dept Mech Engn, Storrs, CT 06269 USA.
RP Nichols, JM (reprint author), USN, Res Lab, 4555 Overlook Ave, Washington, DC 20375 USA.
EM jonathan.nichols@nrl.navy.mil
FU Office of Naval Research [N00014-08-WX-2-1107]
FX The authors would like to acknowledge both the Office of Naval Research
under Contract no. N00014-08-WX-2-1107 for providing funding for this
work.
NR 34
TC 10
Z9 10
U1 0
U2 2
PU ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
PI LONDON
PA 24-28 OVAL RD, LONDON NW1 7DX, ENGLAND
SN 0888-3270
J9 MECH SYST SIGNAL PR
JI Mech. Syst. Signal Proc.
PD FEB
PY 2010
VL 24
IS 2
BP 365
EP 378
DI 10.1016/j.ymssp.2009.07.009
PG 14
WC Engineering, Mechanical
SC Engineering
GA 527PA
UT WOS:000272377800005
ER
PT J
AU Zhang, ZH
Dallek, S
Vogt, R
Li, Y
Topping, TD
Zhou, YZ
Schoenung, JM
Lavernia, EJ
AF Zhang, Zhihui
Dallek, Steven
Vogt, Rustin
Li, Ying
Topping, Troy D.
Zhou, Yizhang
Schoenung, Julie M.
Lavernia, Enrique J.
TI Degassing Behavior of Nanostructured Al and Its Composites
SO METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND
MATERIALS SCIENCE
LA English
DT Article
ID POWDER-METALLURGY; GRAIN-GROWTH; ALUMINUM POWDER; ALLOY POWDERS;
STEARIC-ACID; SURFACE; ADSORPTION; DESORPTION; EVOLUTION; KINETICS
AB The synthesis of bulk ultrafine-grained (UFG) and nanostructured Al via cryomilling can frequently require a degassing step prior to consolidation, partly due to the large surface area of the as-milled powders. The objective of this study is to investigate the effects associated with cryomilling with stearic acid additions (as a process-control agent) on the degassing behavior of Al powders. This objective was accomplished by completing select experiments with Al-7.5Mg, Al-6.4 wt pct Al(85)Ni(10)La(5), and Al-14.3 wt pct B(4)C. The interaction between Al and stearic acid was determined using thermal analysis combined with Fourier transform infrared spectroscopy (FTIR). The degassing experiments were carried out under high vacuum (10(-4) to similar to 10(-6) torr) in a range from room temperature to 400 A degrees C, with the pressure of the released gases monitored using a digital vacuum gage. The results showed that the liberation of chemisorbed water was suppressed in cryomilled Al powders and both the chemisorbed water and stearic acid were primarily released in the form of hydrogen. It was also demonstrated that under certain conditions, a nanostructure (grain size similar to 100 nm) can be retained following the hot vacuum degassing of cryomilled Al.
C1 [Zhang, Zhihui; Vogt, Rustin; Li, Ying; Topping, Troy D.; Zhou, Yizhang; Schoenung, Julie M.; Lavernia, Enrique J.] Univ Calif Davis, Dept Chem Engn & Mat Sci, Davis, CA 95616 USA.
[Dallek, Steven] USN, Ctr Surface Warfare, Carderock Div, Bethesda, MD 20817 USA.
[Dallek, Steven] GJ Associates, Annapolis, MD 21401 USA.
RP Zhang, ZH (reprint author), Univ Calif Davis, Dept Chem Engn & Mat Sci, Davis, CA 95616 USA.
EM zhizhang@ucdavis.edu
RI Li, Ying/G-3908-2010; Lavernia, Enrique/I-6472-2013
OI Li, Ying/0000-0003-3738-9307; Lavernia, Enrique/0000-0003-2124-8964
FU U.S. Army Research Laboratory (ARL) [W911NF-08-2-0028]
FX Research was sponsored by U.S. Army Research Laboratory (ARL) and was
accomplished under Cooperative Agreement W911NF-08-2-0028. The views and
conclusions made in this document are those of the authors and should
not be interpreted as representing the official policies, either
expressed or implied, of ARL or the US Government. The US Government is
authorized to reproduce and distribute reprints for Government purposes
notwithstanding any copyright notation hereon.
NR 27
TC 21
Z9 21
U1 1
U2 16
PU SPRINGER
PI NEW YORK
PA 233 SPRING ST, NEW YORK, NY 10013 USA
SN 1073-5623
J9 METALL MATER TRANS A
JI Metall. Mater. Trans. A-Phys. Metall. Mater. Sci.
PD FEB
PY 2010
VL 41A
IS 2
BP 532
EP 541
DI 10.1007/s11661-009-0089-6
PG 10
WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical
Engineering
SC Materials Science; Metallurgy & Metallurgical Engineering
GA 539GT
UT WOS:000273242700025
ER
PT J
AU MacDonald, MR
AF MacDonald, Michael R.
TI Punishment and the Prevention of Sexually Transmitted Infection Among
Sailors
SO MILITARY MEDICINE
LA English
DT Editorial Material
C1 USN, Portsmouth, VA 23708 USA.
RP MacDonald, MR (reprint author), USN, 620 John Paul Jones Circle,Suite 1100, Portsmouth, VA 23708 USA.
NR 5
TC 0
Z9 0
U1 0
U2 1
PU ASSOC MILITARY SURG US
PI BETHESDA
PA 9320 OLD GEORGETOWN RD, BETHESDA, MD 20814 USA
SN 0026-4075
J9 MIL MED
JI Milit. Med.
PD FEB
PY 2010
VL 175
IS 2
BP 82
EP 83
PG 2
WC Medicine, General & Internal
SC General & Internal Medicine
GA 582GO
UT WOS:000276584900005
PM 20180474
ER
PT J
AU Shen, H
Wan, H
Sanchez, SM
AF Shen, Hua
Wan, Hong
Sanchez, Susan M.
TI A Hybrid Method for Simulation Factor Screening
SO NAVAL RESEARCH LOGISTICS
LA English
DT Article
DE computer experiments; discrete-event simulation; factor screening
ID EFFICIENT
AB Factor screening is performed to eliminate unimportant factors so that the remaining important factors can be more thoroughly studied in later experiments. Controlled sequential bifurcation (CSB) and controlled sequential factorial design (CSFD) are two new screening methods for discrete-event simulations. Both methods use hypothesis testing procedures to control the Type 1 Error and power of the screening results. The scenarios for which each method is most efficient are complementary. This study proposes a two-stage hybrid approach that combines CSFD and an improved CSB called CSB-X. In Phase 1, a prescreening procedure will estimate each effect and determine whether CSB-X or CSFD will be used for further screening. In Phase 2, CSB-X and CSFD are performed separately based on the assignment of Phase 1. The new method usually has the same error control as CSB-X and CSFD. The efficiency, on the other hand, is usually much better than either component method. (C) 2009 Wiley Periodicals. Inc. Naval Research Logistics 57: 45-57, 2010
C1 [Wan, Hong] Purdue Univ, Sch Ind Engn, W Lafayette, IN 47907 USA.
[Shen, Hua] Bank Amer, Charlotte, NC 28255 USA.
[Sanchez, Susan M.] USN, Postgrad Sch, Dept Operat Res, Grad Sch Operat & Informat Sci, Monterey, CA 93943 USA.
[Sanchez, Susan M.] USN, Postgrad Sch, Grad Sch Business & Publ Policy, Monterey, CA 93943 USA.
RP Wan, H (reprint author), Purdue Univ, Sch Ind Engn, W Lafayette, IN 47907 USA.
EM hwan@purdue.edu
FU Purdue Research Foundation (PRF) [N00244-06-C-0002]; Office of the
Secretary of Defense's Test Resource Management Center; Joint IED Defeat
Organization
FX This research was partially supported by Purdue Research Foundation
(PRF), Naval Postgraduate School Award (N00244-06-C-0002), the Office of
the Secretary of Defense's Test Resource Management Center, and the
Joint IED Defeat Organization. Preliminary results from this article
appeared in Ref. 15.
NR 23
TC 8
Z9 11
U1 0
U2 5
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 FEB
PY 2010
VL 57
IS 1
BP 45
EP 57
DI 10.1002/nav.20382
PG 13
WC Operations Research & Management Science
SC Operations Research & Management Science
GA 545YQ
UT WOS:000273773700004
ER
PT J
AU Patursson, O
Swift, MR
Tsukrov, I
Simonsen, K
Baldwin, K
Fredriksson, DW
Celikkol, B
AF Patursson, Oystein
Swift, M. Robinson
Tsukrov, Igor
Simonsen, Knud
Baldwin, Kenneth
Fredriksson, David W.
Celikkol, Barbaros
TI Development of a porous media model with application to flow through and
around a net panel
SO OCEAN ENGINEERING
LA English
DT Article
DE Computational fluid dynamics; Porous media model; Net panel; Current
reduction; Tow tank experiments
AB The flow characteristics through and around a net panel have been investigated through computational fluid dynamics (CFD) and measurements. A finite volume approach was used for solving the Reynolds averaged Navier-Stokes equations combined with a k-epsilon turbulence model for describing the flow. For computational efficiency, the net was modeled as a sheet of porous media rather than a large number of cylinders connected by knots. The model resistance coefficients needed for the porous media equations were found by optimizing the fit between computed lift and drag forces on the net panel and lift and drag measured in tow tank experiments. Lift and drag acting on a flat panel of knotless nylon net (2.8 mm twine thickness and 29 mm mesh size) stretched on a frame were measured at different speeds and angles of attack, and fluid velocity was recorded in the region behind the net. The optimization process used to obtain the best fit porous media coefficients was simplified through the use of an analytical model. Final comparisons between CFD predictions and measurements of lift and drag coefficients and velocity reduction behind the net panel were made for two of the speeds and angles of attack. The agreement between measured and modeled data was good with a mean normalized absolute error of 6.2%. (C) 2009 Elsevier Ltd. All rights reserved.
C1 [Patursson, Oystein; Baldwin, Kenneth] Univ New Hampshire, Jere A Chase Ocean Engn Ctr, Durham, NH 03824 USA.
[Patursson, Oystein; Simonsen, Knud] Univ Faroe Isl, Fac Sci & Technol, Torshavn, Faroe Islands, Denmark.
[Swift, M. Robinson; Tsukrov, Igor; Celikkol, Barbaros] Univ New Hampshire, Dept Mech Engn, Durham, NH 03824 USA.
[Fredriksson, David W.] USN Acad, Dept Naval Architecture & Ocean Engn, Annapolis, MD 21402 USA.
RP Patursson, O (reprint author), Aquaculture Res Stn Faroes, Faroe Isl, Denmark.
EM oystein@fiskaaling.fo
FU Statoil Group; Cooperative Institute for New England Mariculture and
Fisheries (CINEMAR); National Oceanic and Atmospheric Administration
(NOAA)
FX The present work is funded in part by the Statoil Group, which is a
consortium of oil companies, including Statoil, Phillips, Enterprise,
and Veba who are involved in oil exploration on the shelf of the Faroe
Islands, and in part by the Cooperative Institute for New England
Mariculture and Fisheries (CINEMAR) and the National Oceanic and
Atmospheric Administration (NOAA).
NR 19
TC 29
Z9 30
U1 1
U2 14
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0029-8018
J9 OCEAN ENG
JI Ocean Eng.
PD FEB
PY 2010
VL 37
IS 2-3
BP 314
EP 324
DI 10.1016/j.oceaneng.2009.10.001
PG 11
WC Engineering, Marine; Engineering, Civil; Engineering, Ocean;
Oceanography
SC Engineering; Oceanography
GA 566YI
UT WOS:000275409000017
ER
PT J
AU Khurgin, JB
Pruessner, MW
Stievater, TH
Rabinovich, WS
AF Khurgin, J. B.
Pruessner, M. W.
Stievater, T. H.
Rabinovich, W. S.
TI Pockels effect in short period silicon germanium superlattices
SO OPTICS COMMUNICATIONS
LA English
DT Article
ID 2ND-HARMONIC GENERATION; ELECTRONEGATIVITY; MONOLAYER; SI
AB We introduce a simple method of calculating Pockels coefficients in ordered SiGe superlattices and show that the Pockels effect in them can be half as strong as in GaAs. thereby opening a path to efficient CMOS-compatible electro-optic modulators. (C) 2009 Elsevier B.V. All rights reserved.
C1 [Khurgin, J. B.] Johns Hopkins Univ, Baltimore, MD 21218 USA.
[Pruessner, M. W.; Stievater, T. H.; Rabinovich, W. S.] USN, Res Lab, Washington, DC 20375 USA.
RP Khurgin, JB (reprint author), Johns Hopkins Univ, Baltimore, MD 21218 USA.
EM jakek@jhu.edu
RI khurgin, Jacob/A-3278-2010
NR 25
TC 2
Z9 2
U1 0
U2 4
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0030-4018
J9 OPT COMMUN
JI Opt. Commun.
PD FEB 1
PY 2010
VL 283
IS 3
BP 432
EP 434
DI 10.1016/j.optcom.2009.09.079
PG 3
WC Optics
SC Optics
GA 537GD
UT WOS:000273100300016
ER
PT J
AU Nichols, JM
Currie, M
Bucholtz, F
Link, WA
AF Nichols, J. M.
Currie, M.
Bucholtz, F.
Link, W. A.
TI Bayesian estimation of weak material dispersion: theory and experiment
SO OPTICS EXPRESS
LA English
DT Article
ID SPECTRAL INTERFEROMETRY
AB This work considers the estimation of dispersion in materials via an interferometric technique. At its core, the problem involves extracting the quadratic variation in phase over a range of wavelengths based on measured optical intensity. The estimation problem becomes extremely difficult for weakly dispersive materials where the quadratic nonlinearity is very small relative to the uncertainty inherent in experiment. This work provides a means of estimating dispersion in the face of such uncertainty. Specifically, we use a Markov Chain Monte Carlo implementation of Bayesian analysis to provide both the dispersion estimate and the associated confidence interval. The interplay between various system parameters and the size of the resulting confidence interval is discussed. The approach is then applied to several different experimental samples. (C) 2009 Optical Society of America
C1 [Nichols, J. M.; Currie, M.; Bucholtz, F.] USN, Res Lab, Washington, DC 20375 USA.
[Link, W. A.] Patuxent Wildlife & Res Ctr, Laurel, MD 20708 USA.
RP Nichols, JM (reprint author), USN, Res Lab, Washington, DC 20375 USA.
EM jonathan.nichols@nrl.navy.mil
FU Naval Research Laboratory
FX The authors would like to acknowledge the Naval Research Laboratory for
providing funding for this work
NR 9
TC 2
Z9 2
U1 0
U2 1
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 1
PY 2010
VL 18
IS 3
BP 2076
EP 2089
DI 10.1364/OE.18.002076
PG 14
WC Optics
SC Optics
GA 559AD
UT WOS:000274791200029
PM 20174036
ER
PT J
AU Fatemi, FK
Bashkansky, M
AF Fatemi, Fredrik K.
Bashkansky, Mark
TI Spatially resolved magnetometry using cold atoms in dark optical
tweezers
SO OPTICS EXPRESS
LA English
DT Article
AB We use Faraday spectroscopy of atoms confined to crossed hollow beam tweezers to map magnetic fields over 3 millimeters with 200 micron resolution in a single trap loading cycle. The hollow beams are formed using spatial light modulation, and the trap location is scanned using acousto-optic deflectors. We demonstrate the technique by mapping a linear quadrupole magnetic field with 10 nT sensitivity. (C) 2010 Optical Society of America
C1 [Fatemi, Fredrik K.; Bashkansky, Mark] USN, Res Lab, Div Opt Sci, Washington, DC 20375 USA.
RP Fatemi, FK (reprint author), USN, Res Lab, Div Opt Sci, Washington, DC 20375 USA.
EM ffatemi@ccs.nrl.navy.mil
FU Office of Naval Research; Defense Advanced Research Projects Agency
FX This work was supported by the Office of Naval Research and by the
Defense Advanced Research Projects Agency.
NR 13
TC 4
Z9 4
U1 1
U2 3
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 1
PY 2010
VL 18
IS 3
BP 2190
EP 2196
DI 10.1364/OE.18.002190
PG 7
WC Optics
SC Optics
GA 559AD
UT WOS:000274791200040
PM 20174047
ER
PT J
AU Benoit, MM
Fink, DS
Brigger, MT
Keamy, DG
AF Benoit, Margo McKenna
Fink, Daniel S.
Brigger, Matthew T.
Keamy, Donald G., Jr.
TI Lobular capillary hemangioma of the nasal cavity in a five-year-old boy
SO OTOLARYNGOLOGY-HEAD AND NECK SURGERY
LA English
DT Article
ID PYOGENIC GRANULOMA
C1 [Benoit, Margo McKenna; Fink, Daniel S.; Keamy, Donald G., Jr.] Massachusetts Eye & Ear Infirm, Dept Otolaryngol, Boston, MA 02114 USA.
[Brigger, Matthew T.] USN, Med Ctr, Dept Otolaryngol Head & Neck Surg, San Diego, CA 92152 USA.
RP Benoit, MM (reprint author), Massachusetts Eye & Ear Infirm, Dept Otolaryngol, 243 Charles St, Boston, MA 02114 USA.
EM Margo_Benoit@meei.harvard.edu
NR 5
TC 1
Z9 1
U1 0
U2 0
PU MOSBY-ELSEVIER
PI NEW YORK
PA 360 PARK AVENUE SOUTH, NEW YORK, NY 10010-1710 USA
SN 0194-5998
J9 OTOLARYNG HEAD NECK
JI Otolaryngol. Head Neck Surg.
PD FEB
PY 2010
VL 142
IS 2
BP 290
EP 291
DI 10.1016/j.otohns.2009.09.035
PG 2
WC Otorhinolaryngology; Surgery
SC Otorhinolaryngology; Surgery
GA 582CZ
UT WOS:000276574500028
PM 20115993
ER
PT J
AU Hoffer, ME
Balaban, C
Gottshall, K
Balough, BJ
Maddox, MR
Penta, JR
AF Hoffer, Michael E.
Balaban, Carey
Gottshall, Kim
Balough, Ben J.
Maddox, Michael R.
Penta, Joseph R.
TI Blast Exposure: Vestibular Consequences and Associated Characteristics
SO OTOLOGY & NEUROTOLOGY
LA English
DT Article; Proceedings Paper
CT Spring Meeting of the American-Neurotology-Society
CY MAY 29-30, 2009
CL Phoenix, AZ
SP Amer Neurotol Soc
DE Headaches; Hearing loss; Mild traumatic brain injury; Posttraumatic
stress disorders; Traumatic brain injury; Vestibular disorders;
Vestibular function tests
ID TRAUMATIC BRAIN-INJURY; DIZZINESS; IMPAIRMENT; DISORDER; STRESS; IRAQ;
WAR
AB Objective: To characterize vestibular and related symptoms seen after blast exposure.
Study Design: Prospective single-subject design.
Settings: Tertiary care facility and military field hospital.
Patients: Active-duty US Military personnel exposed to blast(s) in Iraq and/or Afghanistan.
Interventions: Vestibular function tests, auditory tests, and a structured history and physical examination.
Results: Blast exposure induced vestibular disorders, and related symptoms are significantly different than those seen in blunt head trauma. The vestibular characteristics and objective tests of vestibular function significantly worsen in blast-exposed patients as a function of time between injury and presentation.
Conclusion: Blast exposure produces a unique set of vestibular disorders and associated symptoms that progress over time. Understanding the characteristics of these symptoms as they vary over time may be critical in designing treatment strategies that modify long-term outcome.
C1 [Hoffer, Michael E.; Balaban, Carey; Gottshall, Kim; Balough, Ben J.] USN, Spatial Orientat Ctr, Dept Otolaryngol, San Diego Med Ctr, San Diego, CA 92134 USA.
[Maddox, Michael R.] 1st Marine Expeditionary Grp, Camp Pendleton, CA USA.
[Penta, Joseph R.] 1st Marine Logist Grp, Camp Pendleton, CA USA.
[Balaban, Carey] Univ Pittsburgh, Dept Otolaryngol, Pittsburgh, PA 15260 USA.
RP Hoffer, ME (reprint author), USN, Spatial Orientat Ctr, Dept Otolaryngol, San Diego Med Ctr, 34800 Bob Wilson Dive, San Diego, CA 92134 USA.
EM Michael.hoffer@med.navy.mil
OI Balaban, Carey/0000-0002-3570-3844
NR 12
TC 44
Z9 45
U1 2
U2 6
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 1531-7129
J9 OTOL NEUROTOL
JI Otol. Neurotol.
PD FEB
PY 2010
VL 31
IS 2
BP 232
EP 236
DI 10.1097/MAO.0b013e3181c993c3
PG 5
WC Clinical Neurology; Otorhinolaryngology
SC Neurosciences & Neurology; Otorhinolaryngology
GA 581VX
UT WOS:000276554400010
PM 20009782
ER
PT J
AU Gunlycke, D
White, CT
AF Gunlycke, D.
White, C. T.
TI Scaling of the localization length in armchair-edge graphene nanoribbons
SO PHYSICAL REVIEW B
LA English
DT Article
ID CARBON NANOTUBES; LAYER GRAPHENE; TRANSPORT; NANOSTRIPS
AB A two-band model that includes edge interactions is derived for hydrogen-terminated, armchair-edge graphene nanoribbons. This model is then used to obtain analytical expressions for the localization length of these ribbons in the presence of environmental and topological edge disorder. Within the single-channel regime, it is found that the maximum localization length of a ribbon with uncorrelated edge disorder is proportional to the square of its width. Also shown is the dependence of the localization length on quasiparticle energy and band gap. The analytical expressions have been verified by numerical transport calculations that take all pi channels into account.
C1 [Gunlycke, D.; White, C. T.] USN, Res Lab, Washington, DC 20375 USA.
RP Gunlycke, D (reprint author), USN, Res Lab, Washington, DC 20375 USA.
FU Office of Naval Research, directly and through the Naval Research
Laboratory
FX This work is supported by the Office of Naval Research, directly and
through the Naval Research Laboratory.
NR 35
TC 13
Z9 13
U1 2
U2 10
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1098-0121
J9 PHYS REV B
JI Phys. Rev. B
PD FEB
PY 2010
VL 81
IS 7
AR 075434
DI 10.1103/PhysRevB.81.075434
PG 6
WC Physics, Condensed Matter
SC Physics
GA 561SC
UT WOS:000274998200129
ER
PT J
AU Abelev, BI
Aggarwal, MM
Ahammed, Z
Alakhverdyants, AV
Anderson, BD
Arkhipkin, D
Averichev, GS
Balewski, J
Barannikova, O
Barnby, LS
Baumgart, S
Beavis, DR
Bellwied, R
Benedosso, F
Betancourt, MJ
Betts, RR
Bhasin, A
Bhati, AK
Bichsel, H
Bielcik, J
Bielcikova, J
Biritz, B
Bland, LC
Bnzarov, I
Bonner, BE
Bouchet, J
Braidot, E
Brandin, AV
Bridgeman, A
Bruna, E
Bueltmann, S
Burton, TP
Cai, XZ
Caines, H
Sanchez, MCD
Catu, O
Cebra, D
Cendejas, R
Cervantes, MC
Chajecki, Z
Chaloupka, P
Chattopadhyay, S
Chen, HF
Chen, JH
Chen, JY
Cheng, J
Cherney, M
Chikanian, A
Choi, KE
Christie, W
Chung, P
Clarke, RF
Codrington, MJM
Corliss, R
Cramer, JG
Crawford, HJ
Das, D
Dash, S
De Silva, LC
Debbe, RR
Dedovich, TG
DePhillips, M
Derevschikov, AA
de Souza, RD
Didenko, L
Djawotho, P
Dogra, SM
Dong, X
Drachenberg, JL
Draper, JE
Dunlop, JC
Mazumdar, MRD
Efimov, LG
Elhalhuli, E
Elnimr, M
Engelage, J
Eppley, G
Erazmus, B
Estienne, M
Eun, L
Fachini, P
Fatemi, R
Fedorisin, J
Fersch, RG
Filip, P
Finch, E
Fine, V
Fisyak, Y
Gagliardi, CA
Gangadharan, DR
Ganti, MS
Garcia-Solis, EJ
Geromitsos, A
Geurts, F
Ghazikhanian, V
Ghosh, P
Gorbunov, YN
Gordon, A
Grebenyuk, O
Grosnick, D
Grube, B
Guertin, SM
Gupta, A
Gupta, N
Guryn, W
Haag, B
Hallman, TJ
Hamed, A
Han, LX
Harris, JW
Hays-Wehle, JP
Heinz, M
Heppelmann, S
Hirsch, A
Hjort, E
Hoffman, AM
Hoffmann, GW
Hofman, DJ
Hollis, RS
Huang, HZ
Humanic, TJ
Huo, L
Igo, G
Iordanova, A
Jacobs, P
Jacobs, WW
Jakl, P
Jena, C
Jin, F
Jones, CL
Jones, PG
Joseph, J
Judd, EG
Kabana, S
Kajimoto, K
Kang, K
Kapitan, J
Kauder, K
Keane, D
Kechechyan, A
Kettler, D
Khodyrev, VY
Kikola, DP
Kiryluk, J
Kisiel, A
Klein, SR
Knospe, AG
Kocoloski, A
Koetke, DD
Kollegger, T
Konzer, J
Kopytine, M
Koralt, I
Korsch, W
Kotchenda, L
Kouchpil, V
Kravtsov, P
Kravtsov, VI
Krueger, K
Krus, M
Kumar, L
Kurnadi, P
Lamont, MAC
Landgraf, JM
LaPointe, S
Lauret, J
Lebedev, A
Lednicky, R
Lee, CH
Lee, JH
Leight, W
LeVine, MJ
Li, C
Li, N
Li, Y
Li, Z
Lin, G
Lin, X
Lindenbaum, SJ
Lisa, MA
Liu, F
Liu, H
Liu, J
Ljubicic, T
Llope, WJ
Longacre, RS
Love, WA
Lu, Y
Ludlam, T
Ma, GL
Ma, YG
Mahapatra, DP
Majka, R
Mall, OI
Mangotra, LK
Manweiler, R
Margetis, S
Markert, C
Masui, H
Matis, HS
Matulenko, YA
McDonald, D
McShane, TS
Meschanin, A
Milner, R
Minaev, NG
Mioduszewski, S
Mischke, A
Mitrovski, MK
Mohanty, B
Morozov, DA
Munhoz, MG
Nandi, BK
Nattrass, C
Nayak, TK
Nelson, JM
Netrakanti, PK
Ng, MJ
Nogach, LV
Nurushev, SB
Odyniec, G
Ogawa, A
Okada, H
Okorokov, V
Olson, D
Pachr, M
Page, BS
Pal, SK
Pandit, Y
Panebratsev, Y
Pawlak, T
Peitzmann, T
Perevoztchikov, V
Perkins, C
Peryt, W
Phatak, SC
Pile, P
Planinic, M
Ploskon, MA
Pluta, J
Plyku, D
Poljak, N
Poskanzer, AM
Potukuchi, BVKS
Prindle, D
Pruneau, C
Pruthi, NK
Pujahari, PR
Putschke, J
Raniwala, R
Raniwala, S
Ray, RL
Redwine, R
Reed, R
Rehberg, JM
Ridiger, A
Ritter, HG
Roberts, JB
Rogachevskiy, OV
Romero, JL
Rose, A
Roy, C
Ruan, L
Russcher, MJ
Sahoo, R
Sakai, S
Sakrejda, I
Sakuma, T
Salur, S
Sandweiss, J
Schambach, J
Scharenberg, RP
Schmitz, N
Schuster, TR
Seele, J
Seger, J
Selyuzhenkov, I
Seyboth, P
Shahaliev, E
Shao, M
Sharma, M
Shi, SS
Sichtermann, EP
Simon, F
Singaraju, RN
Skoby, MJ
Smirnov, N
Sorensen, P
Sowinski, J
Spinka, HM
Srivastava, B
Stanislaus, TDS
Staszak, D
Stephans, GSF
Stock, R
Strikhanov, M
Stringfellow, B
Suaide, AAP
Suarez, MC
Subba, NL
Sumbera, M
Sun, XM
Sun, Y
Sun, Z
Surrow, B
Symons, TJM
de Toledo, AS
Takahashi, J
Tang, AH
Tang, Z
Tarini, LH
Tarnowsky, T
Thein, D
Thomas, JH
Tian, J
Timmins, AR
Timoshenko, S
Tlusty, D
Tokarev, M
Trainor, TA
Tram, VN
Trentalange, S
Tribble, RE
Tsai, OD
Ulery, J
Ullrich, T
Underwood, DG
Van Buren, G
van Nieuwenhuizen, G
Vanfossen, JA
Varma, R
Vasconcelos, GMS
Vasiliev, AN
Videbaek, F
Viyogi, YP
Vokal, S
Voloshin, SA
Wada, M
Walker, M
Wang, F
Wang, G
Wang, H
Wang, JS
Wang, Q
Wang, X
Wang, XL
Wang, Y
Webb, G
Webb, JC
Westfall, GD
Whitten, C
Wieman, H
Wissink, SW
Witt, R
Wu, Y
Xie, W
Xu, N
Xu, QH
Xu, W
Xu, Y
Xu, Z
Xue, L
Yang, Y
Yepes, P
Yip, K
Yoo, IK
Yue, Q
Zawisza, M
Zbroszczyk, H
Zhan, W
Zhang, S
Zhang, WM
Zhang, XP
Zhang, Y
Zhang, ZP
Zhao, Y
Zhong, C
Zhou, J
Zhou, W
Zhu, X
Zhu, YH
Zoulkarneev, R
Zoulkarneeva, Y
AF Abelev, B. I.
Aggarwal, M. M.
Ahammed, Z.
Alakhverdyants, A. V.
Anderson, B. D.
Arkhipkin, D.
Averichev, G. S.
Balewski, J.
Barannikova, O.
Barnby, L. S.
Baumgart, S.
Beavis, D. R.
Bellwied, R.
Benedosso, F.
Betancourt, M. J.
Betts, R. R.
Bhasin, A.
Bhati, A. K.
Bichsel, H.
Bielcik, J.
Bielcikova, J.
Biritz, B.
Bland, L. C.
Bnzarov, I.
Bonner, B. E.
Bouchet, J.
Braidot, E.
Brandin, A. V.
Bridgeman, A.
Bruna, E.
Bueltmann, S.
Burton, T. P.
Cai, X. Z.
Caines, H.
Sanchez, M. Calderon de la Barca
Catu, O.
Cebra, D.
Cendejas, R.
Cervantes, M. C.
Chajecki, Z.
Chaloupka, P.
Chattopadhyay, S.
Chen, H. F.
Chen, J. H.
Chen, J. Y.
Cheng, J.
Cherney, M.
Chikanian, A.
Choi, K. E.
Christie, W.
Chung, P.
Clarke, R. F.
Codrington, M. J. M.
Corliss, R.
Cramer, J. G.
Crawford, H. J.
Das, D.
Dash, S.
De Silva, L. C.
Debbe, R. R.
Dedovich, T. G.
DePhillips, M.
Derevschikov, A. A.
de Souza, R. Derradi
Didenko, L.
Djawotho, P.
Dogra, S. M.
Dong, X.
Drachenberg, J. L.
Draper, J. E.
Dunlop, J. C.
Mazumdar, M. R. Dutta
Efimov, L. G.
Elhalhuli, E.
Elnimr, M.
Engelage, J.
Eppley, G.
Erazmus, B.
Estienne, M.
Eun, L.
Fachini, P.
Fatemi, R.
Fedorisin, J.
Fersch, R. G.
Filip, P.
Finch, E.
Fine, V.
Fisyak, Y.
Gagliardi, C. A.
Gangadharan, D. R.
Ganti, M. S.
Garcia-Solis, E. J.
Geromitsos, A.
Geurts, F.
Ghazikhanian, V.
Ghosh, P.
Gorbunov, Y. N.
Gordon, A.
Grebenyuk, O.
Grosnick, D.
Grube, B.
Guertin, S. M.
Gupta, A.
Gupta, N.
Guryn, W.
Haag, B.
Hallman, T. J.
Hamed, A.
Han, L. -X.
Harris, J. W.
Hays-Wehle, J. P.
Heinz, M.
Heppelmann, S.
Hirsch, A.
Hjort, E.
Hoffman, A. M.
Hoffmann, G. W.
Hofman, D. J.
Hollis, R. S.
Huang, H. Z.
Humanic, T. J.
Huo, L.
Igo, G.
Iordanova, A.
Jacobs, P.
Jacobs, W. W.
Jakl, P.
Jena, C.
Jin, F.
Jones, C. L.
Jones, P. G.
Joseph, J.
Judd, E. G.
Kabana, S.
Kajimoto, K.
Kang, K.
Kapitan, J.
Kauder, K.
Keane, D.
Kechechyan, A.
Kettler, D.
Khodyrev, V. Yu.
Kikola, D. P.
Kiryluk, J.
Kisiel, A.
Klein, S. R.
Knospe, A. G.
Kocoloski, A.
Koetke, D. D.
Kollegger, T.
Konzer, J.
Kopytine, M.
Koralt, I.
Korsch, W.
Kotchenda, L.
Kouchpil, V.
Kravtsov, P.
Kravtsov, V. I.
Krueger, K.
Krus, M.
Kumar, L.
Kurnadi, P.
Lamont, M. A. C.
Landgraf, J. M.
LaPointe, S.
Lauret, J.
Lebedev, A.
Lednicky, R.
Lee, C-H
Lee, J. H.
Leight, W.
LeVine, M. J.
Li, C.
Li, N.
Li, Y.
Li, Z.
Lin, G.
Lin, X.
Lindenbaum, S. J.
Lisa, M. A.
Liu, F.
Liu, H.
Liu, J.
Ljubicic, T.
Llope, W. J.
Longacre, R. S.
Love, W. A.
Lu, Y.
Ludlam, T.
Ma, G. L.
Ma, Y. G.
Mahapatra, D. P.
Majka, R.
Mall, O. I.
Mangotra, L. K.
Manweiler, R.
Margetis, S.
Markert, C.
Masui, H.
Matis, H. S.
Matulenko, Yu. A.
McDonald, D.
McShane, T. S.
Meschanin, A.
Milner, R.
Minaev, N. G.
Mioduszewski, S.
Mischke, A.
Mitrovski, M. K.
Mohanty, B.
Morozov, D. A.
Munhoz, M. G.
Nandi, B. K.
Nattrass, C.
Nayak, T. K.
Nelson, J. M.
Netrakanti, P. K.
Ng, M. J.
Nogach, L. V.
Nurushev, S. B.
Odyniec, G.
Ogawa, A.
Okada, H.
Okorokov, V.
Olson, D.
Pachr, M.
Page, B. S.
Pal, S. K.
Pandit, Y.
Panebratsev, Y.
Pawlak, T.
Peitzmann, T.
Perevoztchikov, V.
Perkins, C.
Peryt, W.
Phatak, S. C.
Pile, P.
Planinic, M.
Ploskon, M. A.
Pluta, J.
Plyku, D.
Poljak, N.
Poskanzer, A. M.
Potukuchi, B. V. K. S.
Prindle, D.
Pruneau, C.
Pruthi, N. K.
Pujahari, P. R.
Putschke, J.
Raniwala, R.
Raniwala, S.
Ray, R. L.
Redwine, R.
Reed, R.
Rehberg, J. M.
Ridiger, A.
Ritter, H. G.
Roberts, J. B.
Rogachevskiy, O. V.
Romero, J. L.
Rose, A.
Roy, C.
Ruan, L.
Russcher, M. J.
Sahoo, R.
Sakai, S.
Sakrejda, I.
Sakuma, T.
Salur, S.
Sandweiss, J.
Schambach, J.
Scharenberg, R. P.
Schmitz, N.
Schuster, T. R.
Seele, J.
Seger, J.
Selyuzhenkov, I.
Seyboth, P.
Shahaliev, E.
Shao, M.
Sharma, M.
Shi, S. S.
Sichtermann, E. P.
Simon, F.
Singaraju, R. N.
Skoby, M. J.
Smirnov, N.
Sorensen, P.
Sowinski, J.
Spinka, H. M.
Srivastava, B.
Stanislaus, T. D. S.
Staszak, D.
Stephans, G. S. F.
Stock, R.
Strikhanov, M.
Stringfellow, B.
Suaide, A. A. P.
Suarez, M. C.
Subba, N. L.
Sumbera, M.
Sun, X. M.
Sun, Y.
Sun, Z.
Surrow, B.
Symons, T. J. M.
de Toledo, A. Szanto
Takahashi, J.
Tang, A. H.
Tang, Z.
Tarini, L. H.
Tarnowsky, T.
Thein, D.
Thomas, J. H.
Tian, J.
Timmins, A. R.
Timoshenko, S.
Tlusty, D.
Tokarev, M.
Trainor, T. A.
Tram, V. N.
Trentalange, S.
Tribble, R. E.
Tsai, O. D.
Ulery, J.
Ullrich, T.
Underwood, D. G.
Van Buren, G.
van Nieuwenhuizen, G.
Vanfossen, J. A., Jr.
Varma, R.
Vasconcelos, G. M. S.
Vasiliev, A. N.
Videbaek, F.
Viyogi, Y. P.
Vokal, S.
Voloshin, S. A.
Wada, M.
Walker, M.
Wang, F.
Wang, G.
Wang, H.
Wang, J. S.
Wang, Q.
Wang, X.
Wang, X. L.
Wang, Y.
Webb, G.
Webb, J. C.
Westfall, G. D.
Whitten, C., Jr.
Wieman, H.
Wissink, S. W.
Witt, R.
Wu, Y.
Xie, W.
Xu, N.
Xu, Q. H.
Xu, W.
Xu, Y.
Xu, Z.
Xue, L.
Yang, Y.
Yepes, P.
Yip, K.
Yoo, I. -K.
Yue, Q.
Zawisza, M.
Zbroszczyk, H.
Zhan, W.
Zhang, S.
Zhang, W. M.
Zhang, X. P.
Zhang, Y.
Zhang, Z. P.
Zhao, Y.
Zhong, C.
Zhou, J.
Zhou, W.
Zhu, X.
Zhu, Y. -H.
Zoulkarneev, R.
Zoulkarneeva, Y.
TI Identified particle production, azimuthal anisotropy, and interferometry
measurements in Au plus Au collisions at root s(NN)=9.2 GeV
SO PHYSICAL REVIEW C
LA English
DT Article
ID HEAVY-ION COLLISIONS; QUARK-GLUON PLASMA; RELATIVISTIC NUCLEAR
COLLISIONS; RESISTIVE PLATE CHAMBERS; TIME PROJECTION CHAMBER; QCD
PHASE-TRANSITION; FINITE-TEMPERATURE; HADRON-PRODUCTION; PION
INTERFEROMETRY; COULOMB CORRECTIONS
AB We present the first measurements of identified hadron production, azimuthal anisotropy, and pion interferometry from Au + Au collisions below the nominal injection energy at the BNL Relativistic Heavy-Ion Collider (RHIC) facility. The data were collected using the large acceptance solenoidal tracker at RHIC (STAR) detector at root s(NN) = 9.2 GeV from a test run of the collider in the year 2008. Midrapidity results on multiplicity density dN/dy in rapidity y, average transverse momentum < p(T)>, particle ratios, elliptic flow, and Hanbury-Brown-Twiss (HBT) radii are consistent with the corresponding results at similar root s(NN) from fixed-target experiments. Directed flow measurements are presented for both midrapidity and forward-rapidity regions. Furthermore the collision centrality dependence of identified particle dN/dy, < p(T)>, and particle ratios are discussed. These results also demonstrate that the capabilities of the STAR detector, although optimized for root s(NN) = 200 GeV, are suitable for the proposed QCD critical-point search and exploration of the QCD phase diagram at RHIC.
C1 [Bridgeman, A.; Krueger, K.; Spinka, H. M.; Underwood, D. G.] Argonne Natl Lab, Argonne, IL 60439 USA.
[Barnby, L. S.; Burton, T. P.; Elhalhuli, E.; Jones, P. G.; Nelson, J. M.] Univ Birmingham, Birmingham, W Midlands, England.
[Arkhipkin, D.; Beavis, D. R.; Bland, L. C.; Christie, W.; Debbe, R. R.; DePhillips, M.; Didenko, L.; Dunlop, J. C.; Fachini, P.; Fine, V.; Fisyak, Y.; Gordon, A.; Guryn, W.; Hallman, T. J.; Lamont, M. A. C.; Landgraf, J. M.; Lauret, J.; Lebedev, A.; Lee, J. H.; LeVine, M. J.; Ljubicic, T.; Longacre, R. S.; Love, W. A.; Ludlam, T.; Ogawa, A.; Okada, H.; Perevoztchikov, V.; Pile, P.; Ruan, L.; Sorensen, P.; Tang, A. H.; Ullrich, T.; Van Buren, G.; Videbaek, F.; Xu, Z.; Yip, K.] Brookhaven Natl Lab, Upton, NY 11973 USA.
[Crawford, H. J.; Engelage, J.; Judd, E. G.; Ng, M. J.; Perkins, C.] Univ Calif Berkeley, Berkeley, CA 94720 USA.
[Sanchez, M. Calderon de la Barca; Cebra, D.; Das, D.; Draper, J. E.; Haag, B.; Liu, H.; Mall, O. I.; Reed, R.; Romero, J. L.] Univ Calif Davis, Davis, CA 95616 USA.
[Biritz, B.; Cendejas, R.; Gangadharan, D. R.; Ghazikhanian, V.; Guertin, S. M.; Huang, H. Z.; Igo, G.; Kurnadi, P.; Sakai, S.; Staszak, D.; Trentalange, S.; Tsai, O. D.; Wang, G.; Whitten, C., Jr.; Xu, W.] Univ Calif Los Angeles, Los Angeles, CA 90095 USA.
[de Souza, R. Derradi; Takahashi, J.; Vasconcelos, G. M. S.] Univ Estadual Campinas, Sao Paulo, Brazil.
[Abelev, B. I.; Barannikova, O.; Betts, R. R.; Garcia-Solis, E. J.; Hofman, D. J.; Hollis, R. S.; Iordanova, A.; Kauder, K.; Suarez, M. C.] Univ Illinois, Chicago, IL 60607 USA.
[Cherney, M.; Gorbunov, Y. N.; McShane, T. S.; Seger, J.] Creighton Univ, Omaha, NE 68178 USA.
[Bielcik, J.; Krus, M.; Pachr, M.] Czech Tech Univ, FNSPE, CZ-11519 Prague, Czech Republic.
[Bielcikova, J.; Chaloupka, P.; Chung, P.; Jakl, P.; Kapitan, J.; Kouchpil, V.; Sumbera, M.; Tlusty, D.] Nucl Res Inst AS CR, CZ-25068 Rez, Czech Republic.
[Kollegger, T.; Mitrovski, M. K.; Rehberg, J. M.; Schuster, T. R.; Stock, R.] Goethe Univ Frankfurt, Frankfurt, Germany.
[Dash, S.; Jena, C.; Mahapatra, D. P.; Phatak, S. C.] Inst Phys, Bhubaneswar 751005, Orissa, India.
[Nandi, B. K.; Pujahari, P. R.; Varma, R.] Indian Inst Technol, Bombay 400076, Maharashtra, India.
[Jacobs, W. W.; Page, B. S.; Selyuzhenkov, I.; Sowinski, J.; Wissink, S. W.] Indiana Univ, Bloomington, IN 47408 USA.
[Bhasin, A.; Dogra, S. M.; Gupta, A.; Gupta, N.; Mangotra, L. K.; Potukuchi, B. V. K. S.] Univ Jammu, Jammu 180001, India.
[Alakhverdyants, A. V.; Averichev, G. S.; Bnzarov, 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.; Zoulkarneev, R.; Zoulkarneeva, Y.] Joint Inst Nucl Res, RU-141980 Dubna, Russia.
[Anderson, B. D.; Bouchet, J.; Joseph, J.; Keane, D.; Kopytine, M.; Margetis, S.; Pandit, Y.; Subba, N. L.; Vanfossen, J. A., Jr.; Zhang, W. M.] Kent State Univ, Kent, OH 44242 USA.
[Fatemi, R.; Fersch, R. G.; Korsch, W.; Webb, G.] Univ Kentucky, Lexington, KY 40506 USA.
[Sun, Z.; Wang, J. S.; Yang, Y.; Zhan, W.] Inst Modern Phys, Lanzhou, Peoples R China.
[Dong, X.; Grebenyuk, O.; Hjort, E.; Jacobs, P.; Kikola, D. P.; Kiryluk, J.; Klein, S. R.; Masui, H.; Matis, H. S.; Odyniec, G.; Olson, D.; Ploskon, M. A.; Poskanzer, A. M.; Ritter, H. G.; Rose, A.; Sakrejda, I.; Salur, S.; Sichtermann, E. P.; Sun, X. M.; Symons, T. J. M.; Thomas, J. H.; Tram, V. N.; Wieman, H.; Xu, N.; Zhang, X. P.; Zhang, Y.] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA.
[Balewski, J.; Betancourt, M. J.; Corliss, R.; Hays-Wehle, J. P.; Hoffman, A. M.; Jones, C. L.; Kocoloski, A.; Leight, W.; Milner, R.; Redwine, R.; Sakuma, T.; Seele, J.; Stephans, G. S. F.; Surrow, B.; van Nieuwenhuizen, G.; Walker, M.] MIT, Cambridge, MA 02139 USA.
[Schmitz, N.; Seyboth, P.; Simon, F.] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany.
[Tarnowsky, T.; Wang, H.; Westfall, G. D.] Michigan State Univ, E Lansing, MI 48824 USA.
[Brandin, A. V.; Kotchenda, L.; Kravtsov, P.; Okorokov, V.; Ridiger, A.; Strikhanov, M.; Timoshenko, S.] Moscow Engn Phys Inst, Moscow 115409, Russia.
[Lindenbaum, S. J.] CUNY City Coll, New York, NY 10031 USA.
[Benedosso, F.; Braidot, E.; Mischke, A.; Peitzmann, T.; Russcher, M. J.] NIKHEF, Amsterdam, Netherlands.
[Benedosso, F.; Braidot, E.; Mischke, A.; Peitzmann, T.; Russcher, M. J.] Univ Utrecht, Amsterdam, Netherlands.
[Chajecki, Z.; Humanic, T. J.; Lisa, M. A.] Ohio State Univ, Columbus, OH 43210 USA.
[Bueltmann, S.; Koralt, I.; Plyku, D.] Old Dominion Univ, Norfolk, VA 23529 USA.
[Aggarwal, M. M.; Bhati, A. K.; Kumar, L.; Pruthi, N. K.] Panjab Univ, Chandigarh 160014, India.
[Eun, L.; Heppelmann, S.] Penn State Univ, University Pk, PA 16802 USA.
[Derevschikov, A. A.; Khodyrev, V. Yu.; Kravtsov, V. I.; Matulenko, Yu. A.; Meschanin, A.; Minaev, N. G.; Morozov, D. A.; Nogach, L. V.; Nurushev, S. B.; Vasiliev, A. N.] Inst High Energy Phys, Protvino, Russia.
[Hirsch, A.; Konzer, J.; Lin, X.; Netrakanti, P. K.; Scharenberg, R. P.; Skoby, M. J.; Srivastava, B.; Stringfellow, B.; Ulery, J.; Wang, F.; Wang, Q.; Xie, W.] Purdue Univ, W Lafayette, IN 47907 USA.
[Choi, K. E.; Grube, B.; Lee, C-H; Yoo, I. -K.] Pusan Natl Univ, Pusan 609735, South Korea.
[Raniwala, R.; Raniwala, S.] Univ Rajasthan, Jaipur 302004, Rajasthan, India.
[Bonner, B. E.; Eppley, G.; Geurts, F.; Liu, J.; Llope, W. J.; McDonald, D.; Roberts, J. B.; Yepes, P.; Zhou, J.] Rice Univ, Houston, TX 77251 USA.
[Munhoz, M. G.; Suaide, A. A. P.; de Toledo, A. Szanto] Univ Sao Paulo, Sao Paulo, Brazil.
[Chen, H. F.; Li, C.; Lu, Y.; Shao, M.; Sun, Y.; Tang, Z.; Wang, X. L.; Xu, Y.; Zhang, Z. P.; Zhao, Y.] Univ Sci & Technol China, Hefei 230026, Peoples R China.
[Xu, Q. H.; Zhou, W.] Shandong Univ, Jinan 250100, Shandong, Peoples R China.
[Cai, X. Z.; Chen, J. H.; Han, L. -X.; Jin, F.; Ma, G. L.; Ma, Y. G.; Tian, J.; Xue, L.; Zhang, S.; Zhong, C.; Zhu, Y. -H.] Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China.
[Erazmus, B.; Estienne, M.; Geromitsos, A.; Kabana, S.; Roy, C.; Sahoo, R.] SUBATECH, Nantes, France.
[Cervantes, M. C.; Clarke, R. F.; Codrington, M. J. M.; Djawotho, P.; Drachenberg, J. L.; Gagliardi, C. A.; Hamed, A.; Huo, L.; Mioduszewski, S.; Tribble, R. E.] Texas A&M Univ, College Stn, TX 77843 USA.
[Hoffmann, G. W.; Kajimoto, K.; Markert, C.; Ray, R. L.; Schambach, J.; Thein, D.; Wada, M.] Univ Texas Austin, Austin, TX 78712 USA.
[Cheng, J.; Kang, K.; Li, Y.; Wang, X.; Wang, Y.; Yue, Q.; Zhu, X.] Tsinghua Univ, Beijing 100084, Peoples R China.
[Witt, R.] USN Acad, Annapolis, MD 21402 USA.
[Grosnick, D.; Koetke, D. D.; Manweiler, R.; Stanislaus, T. D. S.; Webb, J. C.] Valparaiso Univ, Valparaiso, IN 46383 USA.
[Ahammed, Z.; Chattopadhyay, S.; Mazumdar, M. R. Dutta; Ganti, M. S.; Ghosh, P.; Mohanty, B.; Nayak, T. K.; Pal, S. K.; Singaraju, R. N.; Viyogi, Y. P.] Bhabha Atom Res Ctr, Ctr Variable Energy Cyclotron, Kolkata 700064, W Bengal, India.
[Kisiel, A.; Pawlak, T.; Peryt, W.; Pluta, J.; Zawisza, M.; Zbroszczyk, H.] Warsaw Univ Technol, Warsaw, Poland.
[Bichsel, H.; Cramer, J. G.; Kettler, D.; Prindle, D.; Trainor, T. A.] Univ Washington, Seattle, WA 98195 USA.
[Bellwied, R.; De Silva, L. C.; Elnimr, M.; LaPointe, S.; Pruneau, C.; Sharma, M.; Tarini, L. H.; Timmins, A. R.; Voloshin, S. A.] Wayne State Univ, Detroit, MI 48201 USA.
[Chen, J. Y.; Li, N.; Li, Z.; Liu, F.; Shi, S. S.; Wu, Y.] CCNU HZNU, Inst Particle Phys, Wuhan 430079, Peoples R China.
[Baumgart, S.; Bruna, E.; Caines, H.; Catu, O.; Chikanian, A.; Finch, E.; Harris, J. W.; Heinz, M.; Knospe, A. G.; Lin, G.; Majka, R.; Nattrass, C.; Putschke, J.; Sandweiss, J.; Smirnov, N.] Yale Univ, New Haven, CT 06520 USA.
[Planinic, M.; Poljak, N.] Univ Zagreb, HR-10002 Zagreb, Croatia.
RP Abelev, BI (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA.
RI Sumbera, Michal/O-7497-2014; Strikhanov, Mikhail/P-7393-2014; Xu,
Wenqin/H-7553-2014; Dogra, Sunil /B-5330-2013; Chaloupka,
Petr/E-5965-2012; Nattrass, Christine/J-6752-2016; Derradi de Souza,
Rafael/M-4791-2013; Suaide, Alexandre/L-6239-2016; Inst. of Physics,
Gleb Wataghin/A-9780-2017; Lednicky, Richard/K-4164-2013; Yang,
Yanyun/B-9485-2014; Bielcikova, Jana/G-9342-2014; Barnby,
Lee/G-2135-2010; Mischke, Andre/D-3614-2011; Takahashi, Jun/B-2946-2012;
Planinic, Mirko/E-8085-2012; Yoo, In-Kwon/J-6222-2012; Peitzmann,
Thomas/K-2206-2012; Witt, Richard/H-3560-2012; Yip, Kin/D-6860-2013;
Xue, Liang/F-8077-2013; Voloshin, Sergei/I-4122-2013; Pandit,
Yadav/I-2170-2013
OI Sumbera, Michal/0000-0002-0639-7323; Strikhanov,
Mikhail/0000-0003-2586-0405; Xu, Wenqin/0000-0002-5976-4991; Nattrass,
Christine/0000-0002-8768-6468; Derradi de Souza,
Rafael/0000-0002-2084-7001; Suaide, Alexandre/0000-0003-2847-6556; Yang,
Yanyun/0000-0002-5982-1706; Barnby, Lee/0000-0001-7357-9904; Takahashi,
Jun/0000-0002-4091-1779; Peitzmann, Thomas/0000-0002-7116-899X; Yip,
Kin/0000-0002-8576-4311; Xue, Liang/0000-0002-2321-9019; Pandit,
Yadav/0000-0003-2809-7943
FU Offices of NP; US DOE Office of Science; US NSF; Sloan Foundation; DFG
cluster of excellence 'Origin and Structure of the Universe'; RA; RPL;
EMN of France; STFC; EPSRC of the United Kingdom; FAPESP of Brazil;
Russian Ministry of Sci. and Tech.; NNSFC; CAS; MoST; MoE of China; IRP;
GA of the Czech Republic; FOM of the Netherlands; DAE; DST; CSIR of the
Government of India; Polish State Committee for Scientific Research;
Korea Sci. & Eng. Foundation; Korea Research Foundation; [CNRS/IN2P3]
FX We thank the RHIC Operations Group and RCF at BNL, and the NERSC Center
at LBNL and the resources provided by the Open Science Grid consortium
for their support. This work was supported in part by the Offices of NP
and HEP within the US DOE Office of Science, the US NSF, the Sloan
Foundation, the DFG cluster of excellence 'Origin and Structure of the
Universe', CNRS/IN2P3, RA, RPL, and EMN of France, STFC and EPSRC of the
United Kingdom, FAPESP of Brazil, the Russian Ministry of Sci. and
Tech., the NNSFC, CAS, MoST, and MoE of China, IRP and GA of the Czech
Republic, FOM of the Netherlands, DAE, DST, and CSIR of the Government
of India, the Polish State Committee for Scientific Research, and the
Korea Sci. & Eng. Foundation and Korea Research Foundation.
NR 115
TC 91
Z9 92
U1 0
U2 19
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 FEB
PY 2010
VL 81
IS 2
AR 024911
DI 10.1103/PhysRevC.81.024911
PG 19
WC Physics, Nuclear
SC Physics
GA 605IN
UT WOS:000278341300032
ER
PT J
AU Bryant, PH
Nichols, JM
AF Bryant, Paul H.
Nichols, J. M.
TI Modeling and detecting localized nonlinearity in continuum systems with
a multistage transform
SO PHYSICAL REVIEW E
LA English
DT Article
ID FILM
AB A general method is presented for modeling spatially extended systems that may contain a localized source of nonlinearity. It has direct applications to structural health monitoring (SHM) where physical damage may cause such nonlinearity and also communications channels which may exhibit localized nonlinearity due to bad electrical contacts or component nonlinearity. The method uses a multistage nonlinear transform in order to model the system dynamics. We discuss the application to SHM and provide a preliminary test of the method with experimental data from a randomly shaken beam with loose bolts. We discuss the application to telecommunications, provide an experimental observation of symmetric nonlinearity in a "bad" electrical contact, and provide a preliminary test of using this method to remove nonlinear echo (and thereby improve data rate) on a telephone line used for data transmission.
C1 [Bryant, Paul H.] Univ Calif San Diego, BioCircuits Inst, La Jolla, CA 92093 USA.
[Nichols, J. M.] USN, Res Lab, Washington, DC 20375 USA.
RP Bryant, PH (reprint author), Univ Calif San Diego, BioCircuits Inst, La Jolla, CA 92093 USA.
EM pbryant@ucsd.edu; jonathan.nichols@nrl.navy.mil
NR 17
TC 0
Z9 0
U1 0
U2 1
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1539-3755
J9 PHYS REV E
JI Phys. Rev. E
PD FEB
PY 2010
VL 81
IS 2
AR 026209
DI 10.1103/PhysRevE.81.026209
PN 2
PG 8
WC Physics, Fluids & Plasmas; Physics, Mathematical
SC Physics
GA 562LZ
UT WOS:000275053800024
PM 20365640
ER
PT J
AU Hazak, G
Elbaz, Y
Zalesak, S
Wygoda, N
Schmitt, AJ
AF Hazak, G.
Elbaz, Y.
Zalesak, S.
Wygoda, N.
Schmitt, A. J.
TI Kinetic theoretical approach to turbulence in variable-density
incompressible, statistically inhomogeneous fluids
SO PHYSICAL REVIEW E
LA English
DT Article
ID RAYLEIGH-TAYLOR INSTABILITY; NUMERICAL-SIMULATION; SCALE STRUCTURE;
FLOWS; MODEL
AB The kinetic theory is developed for the mass mixing of two incompressible immiscible fluids due to Rayleigh-Taylor instability (as an example for turbulence in variable-density statistically inhomogeneous incompressible fluids). An expression is derived for the fine grain force in terms of the mass-density and velocity fields. This expression enables the conversion of the Navier-Stokes equation into an exact explicit conservation equation in phase space. The equation is a generalization, to the variable-density case, of the Lundgren equation [T. S. Lundgren, Phys. Fluids 10, 969 (1967)]. The conserved quantity is the fine grain density-velocity distribution (FGDVD). The fine grain mass-density and fluid velocity fields are the two lowest moments of the FGDVD. The joint density-velocity probability density function (DVPDF) is the ensemble average of the FGDVD. Using detailed numerical solutions of the Navier-Stokes equation, it is found that the correlation between the acceleration and the FGDVD is weak. This result identifies a small parameter which enables the derivation, by controlled approximations, of closed equations for the DVPDFs. The lowest order yields the mean-field approximation. It is shown by a numerical solution of the closed kinetic equation in the mean-field approximation that it properly describes the time evolution of the system for periods shorter than the relaxation time. Closure schemes beyond the mean field are discussed.
C1 [Hazak, G.; Elbaz, Y.; Wygoda, N.] Nucl Res Ctr Negev, Dept Phys, IL-84190 Beer Sheva, Israel.
[Zalesak, S.; Schmitt, A. J.] USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
RP Hazak, G (reprint author), Nucl Res Ctr Negev, Dept Phys, POB 9001, IL-84190 Beer Sheva, Israel.
NR 36
TC 2
Z9 2
U1 2
U2 5
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1539-3755
J9 PHYS REV E
JI Phys. Rev. E
PD FEB
PY 2010
VL 81
IS 2
AR 026314
DI 10.1103/PhysRevE.81.026314
PN 2
PG 12
WC Physics, Fluids & Plasmas; Physics, Mathematical
SC Physics
GA 562LZ
UT WOS:000275053800042
PM 20365658
ER
PT J
AU Penano, J
Sprangle, P
Hafizi, B
Gordon, D
Serafim, P
AF Penano, Joseph
Sprangle, Phillip
Hafizi, Bahman
Gordon, Daniel
Serafim, Philip
TI Terahertz generation in plasmas using two-color laser pulses
SO PHYSICAL REVIEW E
LA English
DT Article
ID RADIATION; WAVES; AIR; CONVERSION
AB We analyze the generation of terahertz radiation when an intense, short laser pulse is mixed with its frequency-doubled counterpart in plasma. The nonlinear coupling of the fundamental and the frequency-doubled laser pulses in plasma is shown to be characterized by a third order susceptibility which has a time dependence characteristic of the laser pulse durations. The terahertz generation process depends on the relative polarizations of the lasers and the terahertz frequency is omega similar to 1/tau(L), where tau(L) is the laser pulse duration. Since the laser pulse duration is typically in the picosecond or subpicosecond regime the resulting radiation is in the terahertz or multiterahertz regime. To obtain the third order susceptibility we solve the plasma fluid equations correct to third order in the laser fields, including both the relativistic and ponderomotive force terms. The relativistic and ponderomotive contributions to the susceptibility nearly cancel in the absence of electron collisions. Therefore, in this terahertz generation mechanism collisional effects play a critical role. Consistent with recent experimental observations, our model shows that (1) the terahertz field amplitude is proportional to I(1)I(2), where I(1) and I(2) are the intensities of the fundamental and second harmonic laser pulses, respectively, (2) the terahertz emission is maximized when the polarization of the laser beams and the terahertz are aligned, (3) for typical experimental parameters, the emitted terahertz field amplitude is on the order of tens of kilovolts/cm with duration comparable to that of the drive laser pulses, and (4) the direction of terahertz emission depends sensitively on experimental parameters.
C1 [Penano, Joseph; Sprangle, Phillip; Gordon, Daniel] USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
[Hafizi, Bahman] Icarus Res Inc, Bethesda, MD USA.
[Serafim, Philip] Northeastern Univ, Boston, MA 02115 USA.
RP Penano, J (reprint author), USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
FU Office of Naval Research
FX The authors thank Dr. K.Y. Kim, Dr. H. Milchberg, and Dr. A. Zigler for
useful discussions on this topic. This work was supported by 6.1 funding
from the Office of Naval Research.
NR 24
TC 28
Z9 28
U1 1
U2 14
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 1539-3755
J9 PHYS REV E
JI Phys. Rev. E
PD FEB
PY 2010
VL 81
IS 2
AR 026407
DI 10.1103/PhysRevE.81.026407
PN 2
PG 8
WC Physics, Fluids & Plasmas; Physics, Mathematical
SC Physics
GA 562LZ
UT WOS:000275053800049
PM 20365665
ER
PT J
AU Lampe, M
Joyce, G
Manheimer, WM
Ganguli, G
AF Lampe, Martin
Joyce, Glenn
Manheimer, Wallace M.
Ganguli, Gurudas
TI Nonlinear whistler instability driven by a beamlike distribution of
resonant electrons
SO PHYSICS OF PLASMAS
LA English
DT Article
DE cyclotron resonance; geomagnetic variations; plasma instability; plasma
nonlinear processes; plasma simulation; radiation belts; whistlers
ID WAVE-PARTICLE INTERACTIONS; NONUNIFORM MAGNETIC-FIELD; TRIGGERED VLF
EMISSIONS; SELF-CONSISTENT THEORY; COMPUTER-SIMULATIONS; INHOMOGENEOUS
PLASMA; ELECTROSTATIC WAVES; FEEDBACK MODEL; SIPLE-STATION;
MAGNETOSPHERE
AB Theory and simulation are used to study the instability of a coherent whistler parallel-propagating in a simplified model radiation belt with a background of cold electrons, as well as a ring distribution of energetic electrons. A nonlinear instability is initiated at the location z(+), where the electrons are cyclotron resonant with the wave, on the side of the equator (z=0) where the wave is propagating away from the equator. The instability propagates backward toward the equator, growing both spatially and temporally. As the instability develops, frequency falls in such a way as to keep the electrons nearly resonant with the waves over the entire region 0 < z < z(+). The instability causes a sharp drop in the pitch angle of the resonant electrons and eventually saturates with peak amplitude near the equator.
C1 [Lampe, Martin; Ganguli, Gurudas] USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
[Joyce, Glenn] Univ Maryland, College Pk, MD 20740 USA.
[Manheimer, Wallace M.] Icarus Res Inc, Bethesda, MD 20814 USA.
RP Lampe, M (reprint author), USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
FU ONR
FX This work was supported by ONR. The authors appreciate suggestions from
Professor K. (Dennis) Papadopoulos, especially stressing the
transformative effects of distribution function discontinuities.
NR 40
TC 7
Z9 7
U1 0
U2 0
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 1070-664X
J9 PHYS PLASMAS
JI Phys. Plasmas
PD FEB
PY 2010
VL 17
IS 2
AR 022902
DI 10.1063/1.3298733
PG 7
WC Physics, Fluids & Plasmas
SC Physics
GA 562DE
UT WOS:000275028700025
ER
PT J
AU Morozov, A
Luo, Y
Suckewer, S
Gordon, DF
Sprangle, P
AF Morozov, A.
Luo, Y.
Suckewer, S.
Gordon, D. F.
Sprangle, P.
TI Propagation of ultrashort laser pulses in optically ionized gases
SO PHYSICS OF PLASMAS
LA English
DT Article
DE high-speed optical techniques; hydrogen; ionisation potential; jets;
light interferometry; nitrogen; photoionisation; plasma density; plasma
diagnostics; plasma jets; plasma light propagation; Raman spectra;
refractive index; supersonic flow
ID NONLINEAR PROPAGATION; INTENSE; AIR; IONIZATION; PLASMAS; SIMULATIONS;
WAVE
AB Propagation of 800 nm, 120 fs laser pulses with intensities of 4x10(16) W/cm(2) in supersonic gas jets of N(2) and H(2) is studied using a shear-type interferometer. The plasma density distribution resulting from photoionization is resolved in space and time with simultaneously measured initial neutral density distribution. A distinct difference in laser beam propagation distance is observed when comparing propagation in jets of H(2) and N(2). This is interpreted in terms of ionization induced refraction, which is stronger when electrons are produced from states of higher ionization potential. Three dimensional particle-in-cell simulations, based on directly solving the Maxwell-Lorentz system of equations, show the roles played by the forward Raman and ionization scattering instabilities, which further affect the propagation distance.
C1 [Morozov, A.; Luo, Y.; Suckewer, S.] Princeton Univ, Princeton, NJ 08544 USA.
[Gordon, D. F.; Sprangle, P.] USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
RP Morozov, A (reprint author), Princeton Univ, Princeton, NJ 08544 USA.
FU Princeton Plasma Science and Technology (PPST); DOE/NSF; NSF/ECCS
[0754651]; NNSA/DOE
FX One of us (Y. L.) is thankful to Princeton Plasma Science and Technology
(PPST) program at Princeton University for financial support. This
project was supported by grants from DOE/NSF (GPS program), NSF/ECCS
(EPDT Grant No. 0754651), and NNSA/DOE.
NR 27
TC 4
Z9 4
U1 2
U2 9
PU AMER INST PHYSICS
PI MELVILLE
PA CIRCULATION & FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1,
MELVILLE, NY 11747-4501 USA
SN 1070-664X
J9 PHYS PLASMAS
JI Phys. Plasmas
PD FEB
PY 2010
VL 17
IS 2
AR 023101
DI 10.1063/1.3294559
PG 7
WC Physics, Fluids & Plasmas
SC Physics
GA 562DE
UT WOS:000275028700029
ER
PT J
AU Seely, JF
Szabo, CI
Audebert, P
Brambrink, E
Tabakhoff, E
Hudson, LT
AF Seely, J. F.
Szabo, C. I.
Audebert, P.
Brambrink, E.
Tabakhoff, E.
Hudson, L. T.
TI Lateral propagation of MeV electrons generated by femtosecond laser
irradiation
SO PHYSICS OF PLASMAS
LA English
DT Article
DE aluminium; dysprosium; gadolinium; hafnium; high-speed optical
techniques; ionisation; plasma accelerators; plasma interactions; plasma
production by laser; space charge; tungsten
ID FAST IGNITER RESEARCH; COLLISIONLESS ABSORPTION; PLASMA INTERACTIONS;
SOLID INTERACTIONS; HOT-ELECTRONS; TARGETS; PULSES; PENETRATION;
INHIBITION; DEPOSITION
AB The propagation of MeV electrons generated by intense (approximate to 10(20) W/cm(2)) femtosecond laser irradiation, in the lateral direction perpendicular to the incident laser beam, was studied using targets consisting of irradiated metal wires and neighboring spectator wires embedded in electrically conductive (aluminum) or resistive (Teflon) substrates. The K shell spectra in the energy range 40-60 keV from wires of Gd, Dy, Hf, and W were recorded by a transmission crystal spectrometer. The spectra were produced by 1s electron ionization in the irradiated wire and by energetic electron propagation through the substrate material to the spectator wire of a different metal. The electron range and energy were determined from the relative K shell emissions from the irradiated and spectator wires separated by varying substrate lateral distances of up to 1 mm. It was found that electron propagation through Teflon was inhibited, compared to aluminum, implying a relatively weak return current and incomplete space-charge neutralization. The energetic electron propagation in the direction parallel to the electric field of the laser beam was larger than perpendicular to the electric field. Energetic electron production was lower when directly irradiating aluminum or Teflon compared to irradiating the heavy metal wires. These experiments are important for the determination of the energetic electron production mechanism and for understanding lateral electron propagation that can be detrimental to fast-ignition fusion and hard x-ray backlighter radiography.
C1 [Seely, J. F.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Szabo, C. I.] Univ Paris 06, CNRS, Ecole Normale Super, Lab Kastler Brossel, F-75252 Paris 05, France.
[Audebert, P.; Brambrink, E.; Tabakhoff, E.] Ecole Polytech, LULI, F-91128 Palaiseau, France.
[Hudson, L. T.] Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA.
RP Seely, JF (reprint author), USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
EM john.seely@nrl.navy.mil
FU Office of Naval Research; Helmholtz Association [HA216/EMMI]
FX We thank Paul Indelicato and Alexander Gumberidze for supporting the
experiments, Glenn Holland for expert technical assistance, and Uri
Feldman for valuable discussions. The work at the Naval Research
Laboratory was supported by the Office of Naval Research. Certain
commercial equipment, instruments, or materials are identified in this
paper in order to specify the experimental procedure adequately. Such
identification is not intended to imply recommendation or endorsement by
the U. S. government, nor is it intended to imply that the materials or
equipment identified are necessarily the best available for the purpose.
The Laboratoire Kastler Brossel (LKB) is "Unite Mixte de Recherche du
CNRS, de l'ENS et de l'UPMC No. 8552." The LKB group was supported by
the Helmholtz Alliance Program of the Helmholtz Association, Contract
No. HA216/EMMI "Extremes of Density and Temperature: Cosmic Matter in
the Laboratory."
NR 56
TC 18
Z9 18
U1 1
U2 4
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 2010
VL 17
IS 2
AR 023102
DI 10.1063/1.3298734
PG 10
WC Physics, Fluids & Plasmas
SC Physics
GA 562DE
UT WOS:000275028700030
ER
PT J
AU Cox, DR
Hess, DW
Hibbard, MR
Layman, DE
Stewart, RK
AF Cox, David R.
Hess, David W.
Hibbard, Mary R.
Layman, David E.
Stewart, Robert K., Jr.
TI Specialty Practice in Rehabilitation Psychology
SO PROFESSIONAL PSYCHOLOGY-RESEARCH AND PRACTICE
LA English
DT Article
DE rehabilitation; specialty; training; certification; practice
ID EXPERIENCE
AB Rehabilitation psychology is a growing specialty that consistently involves interdisciplinary teamwork as a condition of practice and considers the relevant biological. psychological. social, environmental, and political factors to achieve optimal rehabilitation goals. Rehabilitation psychologists partner with individuals experiencing disabling conditions, to assist them in meeting challenges and promoting quality of life across the life span. Services provided by rehabilitation psychologists include psychological assessments, interventions, consultations, research, consumer protection. and advocacy. This article presents 21 brief history of the specialty. overview of the practice of rehabilitation psychology, and description of file educational and training requirements involved in becoming a specialist in rehabilitation psychology.
C1 [Cox, David R.; Hibbard, Mary R.] Amer Board Profess Psychol, Board Trustees, Chapel Hill, NC 27516 USA.
[Hess, David W.] USN, Naval Med Ctr Portsmouth, Portsmouth, VA USA.
[Hibbard, Mary R.] NYU, Langone Med Ctr, New York, NY 10003 USA.
[Layman, David E.; Stewart, Robert K., Jr.] Mt Sinai Sch Med, New York, NY USA.
RP Cox, DR (reprint author), Amer Board Profess Psychol, Board Trustees, 600 Market St,Suite 300, Chapel Hill, NC 27516 USA.
EM drcox@abpp.org
NR 19
TC 4
Z9 4
U1 0
U2 2
PU AMER PSYCHOLOGICAL ASSOC
PI WASHINGTON
PA 750 FIRST ST NE, WASHINGTON, DC 20002-4242 USA
SN 0735-7028
J9 PROF PSYCHOL-RES PR
JI Prof. Psychol.-Res. Pract.
PD FEB
PY 2010
VL 41
IS 1
BP 82
EP 88
DI 10.1037/a0016411
PG 7
WC Psychology, Multidisciplinary
SC Psychology
GA 554ZL
UT WOS:000274475600014
ER
PT J
AU Washburn, EB
Parr, TP
Hanson-Parr, DM
AF Washburn, Ephraim B.
Parr, Timothy P.
Hanson-Parr, Donna M.
TI Micro Videographic Analysis of the Melt Layer of Self-Deflagrating HMX
and RDX
SO PROPELLANTS EXPLOSIVES PYROTECHNICS
LA English
DT Article
DE HMX; Melt Layer; RDX; Temperature Sensitivity
ID COMBUSTION; PHASE
AB Micro videographic analysis of the thin molten layer on the surface of HMX (Octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine) and RDX (Hexahydro-1,3,5-trinitro-1,3.5-triazine) during self deflagration were performed. This was done to gain a better understanding of the physical structure present in this 100-300 mu m layer and give a visual picture for the development of computational models. During steady-state combustion, RDX had a consistent melt layer with vigorous bubble formation. There was a continuous liquid layer throughout combustion and no foam was formed. The surface of HMX during steady-state combustion at ambient initial temperatures was an uneven layer of foam. Foam appeared to convect across the surface in undulating waves. At elevated initial temperatures, the HMX molten layer was a consistent foam layer in both time and space. Micro videography was also done with a diagnostic laser sheet as illumination to measure the melt layer thickness. The RDX bubbling layer was about 217 +/- 30 mu m thick. The HMX foam thickness varied from almost nothing to 660 mu m, with an average value of about 234 +/- 106 mu m.
A one-dimensional multiphase propellant ingredient combustion model was modified to represent the foam structure better. A foam model used to model fire suppression foam was implemented. The void fraction had a consistent trend and the calculated burning rate temperature sensitivity increased to follow the experimental measured values better.
C1 [Washburn, Ephraim B.] USN, Air Warfare Ctr, Weap Div, China Lake, CA 93555 USA.
[Parr, Timothy P.; Hanson-Parr, Donna M.] Jacobs Technol Corp, Ridgecrest, CA 93555 USA.
RP Washburn, EB (reprint author), USN, Air Warfare Ctr, Weap Div, China Lake, CA 93555 USA.
EM ephraim.washburn@navy.mil
FU Office of Naval Research [N0001404WX20376]
FX This work was supported by the Office of Naval Research, contract no.
N0001404WX20376.
NR 15
TC 3
Z9 4
U1 2
U2 7
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA PO BOX 10 11 61, D-69451 WEINHEIM, GERMANY
SN 0721-3115
J9 PROPELL EXPLOS PYROT
JI Propellants Explos. Pyrotech.
PD FEB
PY 2010
VL 35
IS 1
BP 46
EP 52
DI 10.1002/prep.200800087
PG 7
WC Chemistry, Applied; Engineering, Chemical
SC Chemistry; Engineering
GA 565AK
UT WOS:000275260200007
ER
PT J
AU Hudson, LT
Seely, JF
AF Hudson, L. T.
Seely, J. F.
TI Laser-produced X-ray sources
SO RADIATION PHYSICS AND CHEMISTRY
LA English
DT Article; Proceedings Paper
CT International Forum on Future Directions in Atomic and Condensed Matter
Research and Applications
CY SEP 22-23, 2008
CL Parkville, AUSTRALIA
DE Strong-field science; High-energy-density physics; X-ray metrology;
Laser-produced plasmas; X-ray diagnostics; X-ray lasers; Laser-wake
field; Inverse Compton; High-harmonic generation
ID PLASMA INTERACTIONS; CRYSTAL SPECTROMETER; HARMONIC-GENERATION; INTENSE;
ACCELERATION; INJECTION; PULSES; IGNITION; FIELD; SPECTROSCOPY
AB A formidable array of advanced laser systems are emerging that produce extreme states of light and matter. By irradiating solid and gaseous targets with lasers of increasing energy densities, new physical regimes of radiation effects are being explored for the first time in controlled laboratory settings. One result that is being accomplished or pursued using a variety of techniques, is the realization of novel sources of X-rays with unprecedented characteristics and light-matter interactions, the mechanisms of which are in many cases still being elucidated. Examples include the megajoule class of laser-produced plasmas designed in pursuit of alternative-energy and security applications and the petawatt class of lasers used for fast ignition and X-ray radiographic applications such as medical imaging and real-time imaging of plasma hydrodynamics. As these technologies mature, increased emphasis will need to be placed on advanced instrumentation and diagnostic metrology to characterize the spectra, time structure, and absolute brightness of X-rays emitted by these unconventional sources. Such customized and absolutely calibrated measurement tools will serve as an enabling technology that can help in assessing the overall system performance and progress. as well as identification of the underlying interaction mechanisms of interest to basic and applied strong-field and high-energy-density science. Published by Elsevier Ltd
C1 [Hudson, L. T.] NIST, Gaithersburg, MD 20899 USA.
[Seely, J. F.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
RP Hudson, LT (reprint author), NIST, 100 Bur Dr, Gaithersburg, MD 20899 USA.
EM larry.hudson@nist.gov
NR 50
TC 7
Z9 7
U1 1
U2 10
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0969-806X
J9 RADIAT PHYS CHEM
JI Radiat. Phys. Chem.
PD FEB
PY 2010
VL 79
IS 2
BP 132
EP 138
DI 10.1016/j.radphyschem.2009.01.012
PG 7
WC Chemistry, Physical; Nuclear Science & Technology; Physics, Atomic,
Molecular & Chemical
SC Chemistry; Nuclear Science & Technology; Physics
GA 532PY
UT WOS:000272763100004
ER
PT J
AU Sloan, EP
Philbin, NB
Koenigsberg, MD
Gao, WH
AF Sloan, Edward P.
Philbin, Nora B.
Koenigsberg, Max D.
Gao, Weihua
CA DCLHB Traumatic Hemorrhagic Shock
European HOST Investigators
TI THE LACK OF CONSISTENT DIASPIRIN CROSS-LINKED HEMOGLOBIN INFUSION BLOOD
PRESSURE EFFECTS IN THE US AND EU TRAUMATIC HEMORRHAGIC SHOCK CLINICAL
TRIALS
SO SHOCK
LA English
DT Article
DE Diaspirin cross-linked hemoglobin; traumatic hemorrhagic shock; blood
pressure; resuscitation; mortality; pressor effect
ID HUMAN POLYMERIZED HEMOGLOBIN; ABDOMINAL AORTIC-ANEURYSM;
ARTERY-BYPASS-SURGERY; OXYGEN CARRIER; CARDIAC-SURGERY;
ORTHOPEDIC-SURGERY; RANDOMIZED-TRIAL; CELL SUBSTITUTES; INJURY SEVERITY;
CRITICALLY ILL
AB Hemoglobin solutions have demonstrated a pressor effect that could adversely affect hemorrhagic shock patient resuscitation through accelerated hemorrhage, diminished perfusion, or inadequate resuscitation. Data from two parallel, multicenter traumatic hemorrhagic shock clinical trials in 17 US emergency departments and in 27 EU prehospital systems using diaspirin cross-linked hemoglobin (DCLHb), a hemoglobin-based resuscitation fluid. In the 219 patients, patients were 37 years old, 64% sustained blunt injury, 48% received DCLHb, and 36% expired. Although mean systolic blood pressure (SBP) and diastolic blood pressure values differed at 2 of the 10 measured time points, blood pressure (BP) curve analysis showed no SBP, diastolic blood pressure, or MAP differences based on treatment. Although SBP values 160 and 120 mmHg or greater were 2.2x and 2.6x more frequently noted in survivors, they were not more common with DCLHb use or in DCLHb patients who expired in US study nonsurvivors or in any EU study patients. Systolic blood pressure values 160 and 120 mmHg or greater were 2.8x and 1.3x more frequently noted in DCLHb survivors as compared with normal saline survivors. Only 3% of the BP variation noted could be attributed to DCLHb use, and as expected, injury severity and baseline physiologic status were stronger predictors. In the United States alone, treatment group was not correlated by regression with BP at any time point. Neither mean BP readings nor elevated BP readings were correlated with DCLHb treatment of traumatic hemorrhagic shock patients. As such, no clinically demonstrable DCLHb pressor effect could be directly related to the adverse mortality outcome observed in. the US study.
C1 [Sloan, Edward P.] Univ Illinois, Dept Emergency Med, Coll Med, Chicago, IL 60612 USA.
[Philbin, Nora B.] USN, Med Res Ctr, Silver Spring, MD USA.
[Koenigsberg, Max D.] Advocate Illinois Masonic Med Ctr, Chicago, IL USA.
[Gao, Weihua] Univ Illinois, Sch Publ Hlth, Chicago, IL 60612 USA.
RP Sloan, EP (reprint author), Univ Illinois, Dept Emergency Med, Coll Med, Mail Code 724,Rm 471H CME,808 S Wood St, Chicago, IL 60612 USA.
EM edsloan@uic.edu
FU Henry M. Jackson Foundation
FX This research was supported by a contract with the Henry M. Jackson
Foundation. Dr. Sloan provided consultation to Northfield Inc on
February 29, 2009, regarding PolyHeme and to Biopure Inc on May 2006 as
part of a data safety monitoring activity for HBOC-201. Dr. Sloan also
provided consultation to Biopure Inc in 2005 regarding the clinical
trials of HBOC-201.
NR 67
TC 3
Z9 3
U1 0
U2 2
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 1073-2322
J9 SHOCK
JI Shock
PD FEB
PY 2010
VL 33
IS 2
BP 123
EP 133
DI 10.1097/SHK.0b013e3181ac482b
PG 11
WC Critical Care Medicine; Hematology; Surgery; Peripheral Vascular Disease
SC General & Internal Medicine; Hematology; Surgery; Cardiovascular System
& Cardiology
GA 545QT
UT WOS:000273752200003
PM 20092028
ER
PT J
AU Villanueva, AA
Joshi, KB
Blottman, JB
Priya, S
AF Villanueva, A. A.
Joshi, K. B.
Blottman, J. B.
Priya, S.
TI A bio-inspired shape memory alloy composite (BISMAC) actuator
SO SMART MATERIALS & STRUCTURES
LA English
DT Article
ID JELLYFISH; LOCOMOTION
AB A beam-shape composite actuator using shape memory alloy (SMA) wires as the active component, termed a Bio-Inspired Shape Memory Alloy Composite (BISMAC), was designed to provide a large deformation profile. The BISMAC design was inspired by contraction of a jellyfish bell, utilizing the rowing mechanism for locomotion. Characterization of maximum deformation in underwater conditions was performed for different actuator configurations to analyze the effect of different design parameters, including silicone thickness, flexible steel thickness and distance between the SMA and flexible steel. A constant cross-section (CC)-BISMAC of length 16 cm was found to achieve deformation with a radius of curvature of 3.5 cm. Under equilibrium conditions, the CC-BISMAC was found to achieve 80% of maximum deformation, consuming 7.9 J/cycle driven at 16.2 V/0.98 A and a frequency of 0.25 Hz. A detailed analytical model was developed using the transfer matrix method and a 1D finite beam element (FE) model to simulate the behavior of the BISMAC incorporating gravity, buoyancy and SMA parameters. The FE and transfer matrix models had a maximum deformation error norm of 1.505 and 1.917 cm in comparison with experimentally observed beam deformation in the CC-BISMAC. The mean curvatures predicted by the FE and transfer matrix methods were 0.292 cm(-1) and 0.295 cm(-1) compared to a mean experimental curvature of 0.294 cm(-1), a percentage error of -5.4% and 2.77%, respectively. Using the developed analytical model, an actuator design was fabricated mimicking the maximum deformation profile of jellyfish of the species Aurelia aurita (AA). The designed AA-BISMAC achieved a maximum curvature of 0.428 cm(-1) as compared to 0.438 cm(-1) for A. aurita with an average square root error of 0.043 cm(-1), 10.2% of maximum A. aurita curvature.
C1 [Villanueva, A. A.; Joshi, K. B.; Priya, S.] Virginia Polytech Inst & State Univ, Dept Mech Engn, CIMSS, Blacksburg, VA 24061 USA.
[Blottman, J. B.] USN, Undersea Warfare Ctr, Newport, RI 02841 USA.
RP Priya, S (reprint author), Virginia Polytech Inst & State Univ, Dept Mech Engn, CIMSS, Blacksburg, VA 24061 USA.
EM spriya@vt.edu
RI Joshi, Keyur/C-4557-2014
OI Joshi, Keyur/0000-0002-0751-785X
FU Office of Naval Research [N00014-08-1-0654]
FX The authors gratefully acknowledge financial support from Office of
Naval Research through the MURI program (N00014-08-1-0654). The authors
would also like to thank Professor John H Costello, Providence College,
Providence, RI, and Professor John O Dabiri, California Institute of
Technology, Pasadena, CA, for continuous stimulating discussions on
jellyfish.
NR 27
TC 37
Z9 37
U1 2
U2 25
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 0964-1726
J9 SMART MATER STRUCT
JI Smart Mater. Struct.
PD FEB
PY 2010
VL 19
IS 2
AR 025013
DI 10.1088/0964-1726/19/2/025013
PG 17
WC Instruments & Instrumentation; Materials Science, Multidisciplinary
SC Instruments & Instrumentation; Materials Science
GA 544FX
UT WOS:000273640000013
ER
PT J
AU Seda, G
Amundson, D
Lin, MY
AF Seda, Gilbert
Amundson, Dennis
Lin, Mercury Y.
TI Predominant Cartilaginous Hamartoma: An Unusual Variant of Chondromatous
Hamartoma
SO SOUTHERN MEDICAL JOURNAL
LA English
DT Article
DE hamartomas; neoplasm
ID PULMONARY HAMARTOMA; TUMORS
AB Chondromatous hamartomas are the most common benign lung tumors and the third most common pulmonary nodule. Histologically, they are characteristically composed of hyaline cartilage mixed with fibromyxoid stroma and adipose tissue surrounded by epithelial cells. We report the case of a healthy, 60-year-old woman with an incidentally discovered chondromatous hamartoma that was thorascopically excised. Her pulmonary hamartoma was predominantly cartilaginous, which only occurs in 1% of hamartomas.
C1 [Seda, Gilbert; Amundson, Dennis; Lin, Mercury Y.] USN, San Diego Med Ctr, Dept Pathol & Pulm & Crit Care, San Diego, CA 92134 USA.
RP Seda, G (reprint author), USN, San Diego Med Ctr, Dept Pulm & Crit Care, Suite 301,34730 Bob Wilson Dr, San Diego, CA 92134 USA.
EM gilbert.seda@med.navy.mil
NR 12
TC 1
Z9 1
U1 0
U2 0
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0038-4348
J9 SOUTH MED J
JI South.Med.J.
PD FEB
PY 2010
VL 103
IS 2
BP 169
EP 171
DI 10.1097/SMJ.0b013e3181c98c8b
PG 3
WC Medicine, General & Internal
SC General & Internal Medicine
GA 604OS
UT WOS:000278289000020
PM 20065908
ER
PT J
AU Huntley, WL
Bock, JG
Weingartner, M
AF Huntley, Wade L.
Bock, Joseph G.
Weingartner, Miranda
TI Planning the unplannable: Scenarios on the future of space
SO SPACE POLICY
LA English
DT Article
AB This article explores the use of scenario analysis as a methodology to rigorously analyze potential space futures, particularly with respect to space security challenges, in the context of rapid and uncertain change across several dimensions of human space activities. The successful use of scenario analysis in other (e.g. corporate and military) sectors is described and results of an initial scenario analysis workshop are presented. Scenario analysis is recommended as a promising approach to evaluating the long-term consequences of various policy choices in the context of uncertainty, and as a process well-suited to fostering communication and building consensual knowledge among diverse stakeholders. (C) 2009 Elsevier Ltd. All rights reserved.
C1 [Huntley, Wade L.] USN, Postgrad Sch, Monterey, CA USA.
[Bock, Joseph G.] Kroc Inst Int Peace Studies, Notre Dame, IN USA.
RP Huntley, WL (reprint author), USN, Postgrad Sch, Monterey, CA USA.
EM wlhuntle@nps.edu
RI Bock, Joseph/B-7688-2013;
OI Bock, Joseph/0000-0002-4130-1171
NR 32
TC 4
Z9 4
U1 0
U2 1
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0265-9646
J9 SPACE POLICY
JI Space Policy
PD FEB
PY 2010
VL 26
IS 1
BP 25
EP 38
DI 10.1016/j.spacepol.2009.11.007
PG 14
WC International Relations; Social Sciences, Interdisciplinary
SC International Relations; Social Sciences - Other Topics
GA 569GI
UT WOS:000275584200004
ER
PT J
AU Chu, PC
Fan, CW
AF Chu, Peter C.
Fan, Chenwu
TI Space-Time Transformation in Flux-form Semi-Lagrangian Schemes
SO TERRESTRIAL ATMOSPHERIC AND OCEANIC SCIENCES
LA English
DT Article
DE TFSL scheme; Flux-form semi-Lagrangian scheme; Characteristic line;
Advection-diffusion equation; Finite volume; Conservative finite
difference; Equatorial Rossby soliton
ID COMPACT DIFFERENCE SCHEME; TRANSPORT
AB With a finite volume approach, a flux-form semi-Lagrangian (TFSL) scheme with space-time transformation was developed to provide stable and accurate algorithm in solving the advection-diffusion equation. Different from the existing flux-form semi-Lagrangian schemes, the temporal integration of the flux from the present to the next time step is transformed into a spatial integration of the flux at the side of a grid cell (space) for the present time step using the characteristic-line concept. The TFSL scheme not only keeps the good features of the semi-Lagrangian schemes (no Courant number limitation), but also has higher accuracy (of a second order in both time and space). The capability of the TFSL scheme is demonstrated by the simulation of the equatorial Rossby-soliton propagation. Computational stability and high accuracy makes this scheme useful in ocean modeling, computational fluid dynamics, and numerical weather prediction.
C1 [Chu, Peter C.; Fan, Chenwu] USN, Postgrad Sch, Dept Oceanog, Naval Ocean Anal & Predict Lab, Monterey, CA 93943 USA.
RP Chu, PC (reprint author), USN, Postgrad Sch, Dept Oceanog, Naval Ocean Anal & Predict Lab, 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 10
TC 3
Z9 3
U1 0
U2 2
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 FEB
PY 2010
VL 21
IS 1
SI SI
BP 17
EP 26
DI 10.3319/TAO.2009.05.25.01(IWNOP)
PG 10
WC Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences;
Oceanography
SC Geology; Meteorology & Atmospheric Sciences; Oceanography
GA 575MS
UT WOS:000276071800003
ER
PT J
AU Anderson, GP
Kowtha, VA
Taitt, CR
AF Anderson, George P.
Kowtha, Vasudha A.
Taitt, Chris R.
TI Detection of Fumonisin B1 and Ochratoxin A in Grain Products Using
Microsphere-Based Fluid Array Immunoassays
SO TOXINS
LA English
DT Article
DE mycotoxin; immunoassay; bead array; fumonisin; ochratoxin; detection
AB Grain products are a staple of diets worldwide and therefore, the ability to accurately and efficiently detect foodborne contaminants such as mycotoxins is of importance to everyone. Here we describe an indirect competitive fluid array fluoroimmunoassay to quantify the mycotoxins, fumonisin B1 and ochratoxin A. Both toxins were immobilized to the surface of microspheres using a variety of intermediate molecules and binding of biotinylated "tracer" antibody tracers determined through flow cytometry using streptavidin-phycoerythrin conjugates and the Luminex100 flow cytometer. Competitive assays were developed where the binding of biotinylated monoclonal antibodies to fumonisin B and ochratoxin A was competitively inhibited by different concentrations of those toxins in solution. Concentrations of fumonisin giving 50% inhibition were 300 pg/mL in buffer, 100 ng/g in spiked oats, and 1 mu g/g in spiked cornmeal; analogous concentrations for ochratoxin A were 30 ng/mL in buffer, 30 ng/g in spiked oats, and 10 ng/g in spiked corn. The future challenge will be to expand the number of mycotoxins tested both individually and in multiplexed format using this platform.
C1 [Anderson, George P.; Kowtha, Vasudha A.; Taitt, Chris R.] USN, Ctr Bio Mol Sci & Engn, Res Lab, Washington, DC 20375 USA.
RP Taitt, CR (reprint author), USN, Ctr Bio Mol Sci & Engn, Res Lab, Washington, DC 20375 USA.
EM george.anderson@nrl.navy.mil; chris.taitt@nrl.navy.mil
RI Anderson, George/D-2461-2011
OI Anderson, George/0000-0001-7545-9893
FU National Science Foundation; ONR/NRL 6.2 work unit 6336
FX The authors would like to thank Caitlin Bozman for her assistance with
this project. V.A.K. was supported by the National Science Foundation's
Science and Engineering Apprentice Program. This research was supported
by ONR/NRL 6.2 work unit 6336. The views expressed here are those of the
authors and do not represent the opinions of the US Navy, the US
Department of Defense, or the US Government.
NR 23
TC 27
Z9 28
U1 1
U2 20
PU MDPI AG
PI BASEL
PA POSTFACH, CH-4005 BASEL, SWITZERLAND
SN 2072-6651
J9 TOXINS
JI Toxins
PD FEB
PY 2010
VL 2
IS 2
BP 297
EP 309
DI 10.3390/toxins2020297
PG 13
WC Toxicology
SC Toxicology
GA V24UF
UT WOS:000208434600006
PM 22069585
ER
PT J
AU Palapattu, GS
Singer, EA
Messing, EM
AF Palapattu, Ganesh S.
Singer, Eric A.
Messing, Edward M.
TI Controversies Surrounding Lymph Node Dissection for Prostate Cancer
SO UROLOGIC CLINICS OF NORTH AMERICA
LA English
DT Article
DE Lymph node dissection; Lymph node; Prostate cancer; Lymphadenectomy;
Radical prostatectomy; Review
ID EXTENDED PELVIC LYMPHADENECTOMY; RADICAL RETROPUBIC PROSTATECTOMY;
DISEASE PROGRESSION; PATHOLOGICAL STAGE; BLADDER-CANCER; PARTIN TABLES;
ANTIGEN ERA; METASTASES; MEN; MANAGEMENT
AB Despite the high frequency with which radical prostatectomy is used to treat prostate cancer, uncertainty exists regarding the merits of a simultaneous pelvic lymph node dissection. Unresolved issues include identifying the optimal candidate and selecting the appropriate surgical template, among others. In this article, the authors discuss the pros and cons of performing a pelvic lymph node dissection and the staging/diagnostic and therapeutic implications of this procedure. The lack of robust randomized clinical trials in the literature necessitates a careful analysis of retrospective and case series data.
C1 [Palapattu, Ganesh S.] Methodist Hosp, Dept Urol, Houston, TX 77030 USA.
[Singer, Eric A.] USN Hosp, NCI, Urol Oncol Branch, Bethesda, MD 20814 USA.
[Messing, Edward M.] Univ Rochester, Med Ctr, Dept Urol, Rochester, NY 14642 USA.
RP Palapattu, GS (reprint author), Methodist Hosp, Dept Urol, 6560 Fannin,Suite 2100, Houston, TX 77030 USA.
EM gpalapattu@tmhs.org
FU Clinical Fellowship Training Program [Z01 BC 011023]; NIH, National
Cancer Institute, Center for Cancer Research
FX Funding support to acknowledge: Z01 BC 011023 Clinical Fellowship
Training Program.; This research was supported by the Intramural
Research Program of the NIH, National Cancer Institute, Center for
Cancer Research.
NR 72
TC 6
Z9 7
U1 1
U2 1
PU W B SAUNDERS CO-ELSEVIER INC
PI PHILADELPHIA
PA 1600 JOHN F KENNEDY BOULEVARD, STE 1800, PHILADELPHIA, PA 19103-2899 USA
SN 0094-0143
J9 UROL CLIN N AM
JI Urol. Clin. N. Am.
PD FEB
PY 2010
VL 37
IS 1
BP 57
EP +
DI 10.1016/j.ucl.2009.11.002
PG 10
WC Urology & Nephrology
SC Urology & Nephrology
GA 617CN
UT WOS:000279258500008
PM 20152520
ER
PT J
AU Dorner, RW
Hardy, DR
Williams, FW
Willauer, HD
AF Dorner, Robert W.
Hardy, Dennis R.
Williams, Frederick W.
Willauer, Heather D.
TI K and Mn doped iron-based CO2 hydrogenation catalysts: Detection of
KAlH4 as part of the catalyst's active phase
SO APPLIED CATALYSIS A-GENERAL
LA English
DT Article
DE Iron catalyst; CO2 hydrogenation; KAlH4
ID FISCHER-TROPSCH SYNTHESIS; ALUMINA-SUPPORTED IRON; POTASSIUM PROMOTER;
CARBON-DIOXIDE; FE; MANGANESE; HYDROCARBONS; GAS; CHEMISORPTION;
PERFORMANCE
AB Hydrogenation of CO2 to hydrocarbons is investigated over iron-based catalysts supported on gamma-alumina to produce unsaturated hydrocarbons as feedstock chemicals for jet-fuel synthesis. Over 40% conversion levels can be achieved by doping this catalyst with Mn and K, along with an olefin/paraffin ratio of over 4. The doping levels played a crucial role in the product distribution as well as CO2 conversion yields, with over doping leading to suppression of the desirable hydrocarbon products. The characterization of the catalyst showed the presence of KAlH4 as part of the catalyst's active phase, acting as a reversible H-2 reservoir and as a center for H-2 activation. Characterization of the catalysts by XRD, XPS, and SEM sheds light on the role each dopant had on the overall catalyst's activity and product distribution. (C) 2009 Elsevier B.V. All rights reserved.
C1 [Dorner, Robert W.; Hardy, Dennis R.; Williams, Frederick W.; Willauer, Heather D.] USN, Res Lab, Navy Technol Ctr, Safety & Survivabil Branch, Washington, DC 20375 USA.
RP Dorner, RW (reprint author), USN, Res Lab, Navy Technol Ctr, Safety & Survivabil Branch, Code 6180,4555 Overlook Ave SW, Washington, DC 20375 USA.
EM robert.dorner.ctr.uk@nrl.navy.mil; Heather.Willauer@nrl.navy.mil
FU Office of Naval Research; Naval Research Laboratory
FX This work was supported by the Office of Naval Research both directly
and through the Naval Research Laboratory. The research was performed
while RWD held a National Research Council Research Associateship Award
at the Naval Research Laboratory. The authors acknowledge the valuable
input from Dr. Dmitri Y. Petrovykh.
NR 36
TC 46
Z9 51
U1 5
U2 50
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0926-860X
J9 APPL CATAL A-GEN
JI Appl. Catal. A-Gen.
PD JAN 31
PY 2010
VL 373
IS 1-2
BP 112
EP 121
DI 10.1016/j.apcata.2009.11.005
PG 10
WC Chemistry, Physical; Environmental Sciences
SC Chemistry; Environmental Sciences & Ecology
GA 553LH
UT WOS:000274367700010
ER
PT J
AU Goldman, ER
Anderson, GP
Bernstein, RD
Swain, MD
AF Goldman, Ellen R.
Anderson, George P.
Bernstein, Rachael D.
Swain, Marla D.
TI Amplification of immunoassays using phage-displayed single domain
antibodies
SO JOURNAL OF IMMUNOLOGICAL METHODS
LA English
DT Article
DE Single domain antibody; Rugged; Detection; Biosensor; Immunoassay; M-13
phage display
ID SELECTION; FRAGMENTS; RICIN
AB Single domain antibodies (sdAb) are recombinantly produced variable domains derived from the heavy-chain only antibodies found in camelids. Previously, we selected sdAb that were specific for both ricin and botulinum A (BoNT A) toxin complex from phage display libraries of sdAb and evaluated the solubly expressed protein. Here, phage-displayed sdAb were used as reporter reagents and compared to soluble, unfused sdAb. We found that using phage-displayed sdAb as reporter elements in immunoassay formats gave improved detection over using unfused, soluble sdAb reporters. In enzyme-linked immunosorbent assays (ELISAs), the lowest level of toxin detected for both ricin and BoNT A toxoid complex was decreased by one to two orders of magnitude using phage-displayed sdAb as reporter reagents. Use of the phage preserved the ability to discriminate ricin and RCA120 by at least a factor of 10 fold. In an effort to reduce the number of steps in the assays, we directly labeled phage displaying sdAb with a Cy-3 fluorescent dye. Signal was greatly decreased using the dye-labeled phage compared to biotinylated phage followed by streptavidin-phycoerythrin. In these assays the use of phage-displayed sdAb gives more sensitive detection than soluble sdAb alone, however directly dye labeling the phage failed to provide responses of a similar magnitude. Published by Elsevier B.V.
C1 [Goldman, Ellen R.; Anderson, George P.; Swain, Marla D.] USN, Res Lab, Ctr Biomol Sci & Engn, Washington, DC 20375 USA.
[Bernstein, Rachael D.] Nova Res Inc, Alexandria, VA 22308 USA.
RP Goldman, ER (reprint author), USN, Res Lab, Ctr Biomol Sci & Engn, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM ellen.goldman@nrl.navy.mil
RI Anderson, George/D-2461-2011
OI Anderson, George/0000-0001-7545-9893
FU Joint Science and Technology Office for Chemical and Biological
Defense/Defense Threat Reduction Agency
FX This research was supported by Joint Science and Technology Office for
Chemical and Biological Defense/Defense Threat Reduction Agency. The
opinions expressed here are those of the authors and do not represent
those of the US Navy, the US Department of Defense, or the US
government.
NR 12
TC 13
Z9 14
U1 0
U2 8
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0022-1759
J9 J IMMUNOL METHODS
JI J. Immunol. Methods
PD JAN 31
PY 2010
VL 352
IS 1-2
BP 182
EP 185
DI 10.1016/j.jim.2009.10.014
PG 4
WC Biochemical Research Methods; Immunology
SC Biochemistry & Molecular Biology; Immunology
GA 550BO
UT WOS:000274102000023
PM 19895814
ER
PT J
AU Slavin, JA
Lepping, RP
Wu, CC
Anderson, BJ
Baker, DN
Benna, M
Boardsen, SA
Killen, RM
Korth, H
Krimigis, SM
McClintock, WE
McNutt, RL
Sarantos, M
Schriver, D
Solomon, SC
Travnicek, P
Zurbuchen, TH
AF Slavin, James A.
Lepping, Ronald P.
Wu, Chin-Chun
Anderson, Brian J.
Baker, Daniel N.
Benna, Mehdi
Boardsen, Scott A.
Killen, Rosemary M.
Korth, Haje
Krimigis, Stamatios M.
McClintock, William E.
McNutt, Ralph L., Jr.
Sarantos, Menelaos
Schriver, David
Solomon, Sean C.
Travnicek, Pavel
Zurbuchen, Thomas H.
TI MESSENGER observations of large flux transfer events at Mercury
SO GEOPHYSICAL RESEARCH LETTERS
LA English
DT Article
ID MAGNETIC CLOUDS; 1ST FLYBY; MAGNETOPAUSE; MAGNETOSPHERE; RECONNECTION;
FIELD; MODEL
AB Six flux transfer events (FTEs) were encountered during MESSENGER's first two flybys of Mercury (M1 and M2). For M1 the interplanetary magnetic field (IMF) was predominantly northward and four FTEs with durations of 1 to 6 s were observed in the magnetosheath following southward IMF turnings. The IMF was steadily southward during M2, and an FTE 4 s in duration was observed just inside the dawn magnetopause followed similar to 32 s later by a 7-s FTE in the magnetosheath. Flux rope models were fit to the magnetic field data to determine FTE dimensions and flux content. The largest FTE observed by MESSENGER had a diameter of similar to 1 R(M) (where R(M) is Mercury's radius), and its open magnetic field increased the fraction of the surface exposed to the solar wind by 10-20 percent and contributed up to similar to 30 kV to the cross-magnetospheric electric potential. Citation: Slavin, J. A., et al. (2010), MESSENGER observations of large flux transfer events at Mercury, Geophys. Res. Lett., 37, L02105, doi:10.1029/2009GL041485.
C1 [Slavin, James A.; Lepping, Ronald P.; Boardsen, Scott A.; Sarantos, Menelaos] NASA, Heliophys Sci Div, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Wu, Chin-Chun] USN, Res Lab, Washington, DC 20375 USA.
[Anderson, Brian J.; Korth, Haje; Krimigis, Stamatios M.; McNutt, Ralph L., Jr.] Johns Hopkins Univ, Appl Phys Lab, Laurel, MD 20723 USA.
[Baker, Daniel N.; McClintock, William E.] Acad Athens, Off Space Res & Technol, Athens, Greece.
[Benna, Mehdi; Killen, Rosemary M.] Univ Colorado, Lab Solar & Atmospher Phys, Boulder, CO 80303 USA.
[Krimigis, Stamatios M.] NASA, Solar Syst Explorat Div, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Schriver, David] Univ Calif Los Angeles, Inst Geophys & Planetary Phys, Los Angeles, CA 90024 USA.
[Solomon, Sean C.] Carnegie Inst Washington, Dept Terr Magnetism, Washington, DC 20015 USA.
[Travnicek, Pavel] Acad Sci Czech Republic, Astron Inst, CZ-14131 Prague, Czech Republic.
[Zurbuchen, Thomas H.] Univ Michigan, Dept Atmospher Ocean & Space Sci, Ann Arbor, MI 48109 USA.
RP Slavin, JA (reprint author), NASA, Heliophys Sci Div, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
EM james.a.slavin@nasa.gov
RI Anderson, Brian/I-8615-2012; Slavin, James/H-3170-2012; McNutt,
Ralph/E-8006-2010; Sarantos, Menelaos/H-8136-2013; Travnicek,
Pavel/G-8608-2014; Benna, Mehdi/F-3489-2012
OI Slavin, James/0000-0002-9206-724X; McNutt, Ralph/0000-0002-4722-9166;
FU NASA [NASW-00002, NAS5-97271]
FX Computational assistance and data visualization support provided by J.
Feggans are gratefully acknowledged. Conversations with S. Imber and A.
Glocer are appreciated. The MESSENGER project is supported by the NASA
Discovery Program under contracts NASW-00002 to the Carnegie Institution
of Washington and NAS5-97271 to the Johns Hopkins University Applied
Physics Laboratory.
NR 22
TC 28
Z9 28
U1 1
U2 5
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 0094-8276
J9 GEOPHYS RES LETT
JI Geophys. Res. Lett.
PD JAN 29
PY 2010
VL 37
AR L02105
DI 10.1029/2009GL041485
PG 6
WC Geosciences, Multidisciplinary
SC Geology
GA 550KI
UT WOS:000274126300004
ER
PT J
AU Petrova, TB
Whitney, KG
Davis, J
AF Petrova, Tz B.
Whitney, K. G.
Davis, J.
TI A gain model for x-ray lasing at similar to 2.8 angstrom in an intense
laser irradiated gas of xenon clusters
SO JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
LA English
DT Article
ID RECOMBINATION RATE COEFFICIENTS; LAMBDA-SIMILAR-TO-2.9 ANGSTROM; XE(L)
AMPLIFIER; PLASMAS; AMPLIFICATION; EMISSION; ISOSEQUENCES; MECHANISM;
DYNAMICS; MG
AB A variety of experiments have been carried out (Borisov et al 2008 J. Phys. B: At. Mol. Opt. Phys. 41 105602) in which a gas of xenon clusters containing between 5 and 20 atoms/cluster (Schroeder et al 2001 J. Phys. B: At. Mol. Opt. Phys. 34 297) was irradiated with a similar to 230 fs pulse of 248 nm laser radiation focused to an intensity level of similar to 1.6 x 10(19) Wcm(-2). In these experiments, a channel was formed as the laser beam self-focused. Amplified x-ray emissions at similar to 2.8 angstrom were observed along the direction of the channel with measured gain coefficients of between 27 and 104 cm(-1) being cited. In this paper, a xenon gain model is assembled, built from FAC generated data (Gu 2008 Can. J. Phys. 86 675), which allows gains comparable in magnitude to be calculated under a set of restrictive assumptions about the laser beam-cluster dynamics. The model includes a detailed description of the ionization and excitation dynamics of the Ni- and Co-like ionization stages into which a description of hole state generation in Co-like xenon is made through the photoionization (or collisional ionization) of 2s and 2p electrons. Our calculations show that, under specialized initial conditions and sufficiently high pumping rates, gains larger than 50 cm(-1) are achievable in one of the seven radiative decays of the Co-like hole states. The calculated gains are sensitive to the ion density, the risetime of the photoionization rates and the early time heating rate of the cluster plasma.
C1 [Petrova, Tz B.; Davis, J.] USN, Res Lab, Div Plasma Phys, Radiat Hydrodynam Branch, Washington, DC 20375 USA.
[Whitney, K. G.] Berkeley Scholars Inc, Beltsville, MD 20705 USA.
RP Petrova, TB (reprint author), USN, Res Lab, Div Plasma Phys, Radiat Hydrodynam Branch, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM lina.petrova@nrl.navy.mil
FU DOE/NNSA [DENA0000168]; NRL
FX This work was supported by DOE/NNSA under contract DENA0000168 and NRL
under the 6.1 program. We also thank DARPA for initially launching the
research.
NR 29
TC 9
Z9 9
U1 0
U2 3
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 0953-4075
J9 J PHYS B-AT MOL OPT
JI J. Phys. B-At. Mol. Opt. Phys.
PD JAN 28
PY 2010
VL 43
IS 2
AR 025601
DI 10.1088/0953-4075/43/2/025601
PG 12
WC Optics; Physics, Atomic, Molecular & Chemical
SC Optics; Physics
GA 541RL
UT WOS:000273436800015
ER
PT J
AU Feldman, WC
Lawrence, DJ
Goldsten, JO
Gold, RE
Baker, DN
Haggerty, DK
Ho, GC
Krucker, S
Lin, RP
Mewaldt, RA
Murphy, RJ
Nittler, LR
Rhodes, EA
Slavin, JA
Solomon, SC
Starr, RD
Vilas, F
Vourlidas, A
AF Feldman, William C.
Lawrence, David J.
Goldsten, John O.
Gold, Robert E.
Baker, Daniel N.
Haggerty, Dennis K.
Ho, George C.
Krucker, Saem
Lin, Robert P.
Mewaldt, Richard A.
Murphy, Ronald J.
Nittler, Larry R.
Rhodes, Edgar A.
Slavin, James A.
Solomon, Sean C.
Starr, Richard D.
Vilas, Faith
Vourlidas, Angelos
TI Evidence for extended acceleration of solar flare ions from 1-8 MeV
solar neutrons detected with the MESSENGER Neutron Spectrometer
SO JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
LA English
DT Article
ID GAMMA-RAY; PARTICLE-ACCELERATION; ENERGETIC PARTICLE; MAGNETIC-FIELD;
SPACECRAFT; EMISSION; INSTRUMENT; SPECTRA; MISSION; RHESSI
AB Neutrons produced on the Sun during the M2 flare on 31 December 2007 were observed at 0.48 AU by the MESSENGER Neutron Spectrometer. These observations are the first detection of solar neutrons inside 1 AU. This flare contained multiple acceleration episodes as seen in type III radio bursts. After these bursts ended, both the energetic particle and neutron fluxes decayed smoothly to background with an e-folding decay time of 2.84 h, spanning a 9 h time period. This time is considerably longer than the mean lifetime of a neutron, which indicates that either the observed neutrons were generated in the spacecraft by solar energetic particle protons, or they originated on the Sun. If most of the neutrons came from the Sun, as our simulations of neutron production on the spacecraft show, they must have been continuously produced. A likely explanation of their long duration is that energetic ions were accelerated over an extended time period onto closed magnetic arcades above the corona and then slowly pitch angle-scattered by coronal turbulence into their chromospheric loss cones. Because of their relatively low energy loss in the Neutron Spectrometer (0.5-7.5 MeV), most of these neutrons beta decay to energetic protons and electrons close to the Sun, thereby forming an extended seed population available for further acceleration by subsequent shocks driven by coronal mass ejections in interplanetary space.
C1 [Feldman, William C.] Planetary Sci Inst, Tucson, AZ 85719 USA.
[Baker, Daniel N.] Univ Colorado, Atmospher & Space Phys Lab, Boulder, CO 80303 USA.
[Lawrence, David J.; Goldsten, John O.; Gold, Robert E.; Haggerty, Dennis K.; Ho, George C.; Rhodes, Edgar A.] Johns Hopkins Univ, Appl Phys Lab, Laurel, MD 20723 USA.
[Krucker, Saem; Lin, Robert P.] Univ Calif Berkeley, Space Sci Lab, Dept Phys, Berkeley, CA 94720 USA.
[Mewaldt, Richard A.; Vourlidas, Angelos] CALTECH, Dept Phys, Pasadena, CA 91125 USA.
[Murphy, Ronald J.] USN, Res Lab, Washington, DC 20375 USA.
[Nittler, Larry R.; Solomon, Sean C.] Carnegie Inst Washington, Dept Terr Magnetism, Washington, DC 20015 USA.
[Slavin, James A.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Starr, Richard D.] Catholic Univ Amer, Dept Phys, Washington, DC 20064 USA.
[Vilas, Faith] Univ Arizona, MMT Observ, Tucson, AZ 85721 USA.
RP Feldman, WC (reprint author), Planetary Sci Inst, 1700 E Ft Lowell,Suite 106, Tucson, AZ 85719 USA.
EM feldman@psi.edu
RI Vourlidas, Angelos/C-8231-2009; Slavin, James/H-3170-2012; Ho,
George/G-3650-2015; Lawrence, David/E-7463-2015
OI Vourlidas, Angelos/0000-0002-8164-5948; Slavin,
James/0000-0002-9206-724X; Ho, George/0000-0003-1093-2066; Lawrence,
David/0000-0002-7696-6667
FU NASA Discovery Program [NNX-08AI11G]
FX The MESSENGER mission is supported by the NASA Discovery Program. We are
grateful to the entire MESSENGER team for making the mission a success.
Special thanks go to Brian Anderson for his essential contributions to
the Magnetometer instrument. This work was carried out under the
auspices of the Planetary Science Institute, Johns Hopkins University
Applied Physics Laboratory, and all of the institutions of the
coauthored team. The work at Caltech was supported by NASA under grant
NNX-08AI11G, and W. C. Feldman also thanks the Los Alamos National
Laboratory for providing an office and access to their library during
parts of this project.
NR 32
TC 20
Z9 20
U1 0
U2 6
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 0148-0227
J9 J GEOPHYS RES-SPACE
JI J. Geophys. Res-Space Phys.
PD JAN 23
PY 2010
VL 115
AR A01102
DI 10.1029/2009JA014535
PG 14
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 547RN
UT WOS:000273906900004
ER
PT J
AU Parks, AD
AF Parks, A. D.
TI Weak values and the Aharonov-Vaidman gauge
SO JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL
LA English
DT Article
ID QUANTUM SYSTEM; SPIN; REALIZATION; COMPONENT; TIME
AB The Aharonov-Vaidman gauge-which additively transforms the mean value of a quantum mechanical observable into an associated weak value-is introduced. It is shown that the unusual eccentric properties of weak values are inherited from this gauge and that a weak value of an observable can be considered as its mean value measured in the Aharonov-Vaidman gauge. The total time derivative of this sum also transforms an observable's mean value equation of motion into the associated weak value equation of motion and it is shown that the weak energy of evolution which influences the evolution of a weak value is intrinsic to the rate of change of the Aharonov-Vaidman gauge. Both of these equations of motion can be expressed in terms of time varying generalized coordinates and their rates of change. These equations satisfy the Euler-Lagrange equations which-in turn-define conjugate momenta and provide for their coordinate/momentum/time Poincare representations. The underlying mathematical forms of these two representations are identical except for three symbols which distinguish them physically and identify three simple replacement operations that are required to transform the mean value Poincare representation into the weak value Poincare representation. This transformational relationship between Poincare representations defines the notion of quasi-form invariance and the replacement operations encode the peculiar physical properties induced by the Aharonov-Vaidman gauge, i.e. the complexification and increased dimension of phase space, and the absorption of the weak energy of evolution by the conjugate momenta. Simple examples are used to illustrate the theory.
C1 USN, Quantum Proc Grp, Electromagnet & Sensor Syst Dept, Ctr Surface Warfare, Dahlgren, VA 22448 USA.
RP Parks, AD (reprint author), USN, Quantum Proc Grp, Electromagnet & Sensor Syst Dept, Ctr Surface Warfare, Dahlgren, VA 22448 USA.
EM allen.parks@navy.mil
NR 21
TC 1
Z9 1
U1 0
U2 2
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1751-8113
J9 J PHYS A-MATH THEOR
JI J. Phys. A-Math. Theor.
PD JAN 22
PY 2010
VL 43
IS 3
AR 035305
DI 10.1088/1751-8113/43/3/035305
PG 13
WC Physics, Multidisciplinary; Physics, Mathematical
SC Physics
GA 534TE
UT WOS:000272919400013
ER
PT J
AU Pace, PE
Ng, CY
AF Pace, P. E.
Ng, C. Y.
TI Costas CW frequency hopping radar waveform: peak sidelobe improvement
using Golay complementary sequences
SO ELECTRONICS LETTERS
LA English
DT Article
AB The use of Golay complementary sequences to encode Costas frequency hopping continuous waveforms (CW) in order improve the range (time) sidelobe behaviour of received radar signals compared to classical techniques such as Barker coding is investigated for the first time. Sidelobe reduction is quantified using the aperiodic autocorrelation function and the periodic autocorrelation function. The results are compared with the same frequency hopping waveform encoded with a 13-bit Barker code. The results show that a 16 dB improvement in peak sidelobe performance is achieved over Barker coding using Golay complementary sequences with a code length of only 2(3) and a 26 dB improvement with code length 2(8).
C1 [Pace, P. E.; Ng, C. Y.] USN, Postgrad Sch, Monterey, CA 93943 USA.
RP Pace, PE (reprint author), USN, Postgrad Sch, Monterey, CA 93943 USA.
EM pepace@nps.edu
NR 6
TC 5
Z9 6
U1 0
U2 5
PU INST ENGINEERING TECHNOLOGY-IET
PI HERTFORD
PA MICHAEL FARADAY HOUSE SIX HILLS WAY STEVENAGE, HERTFORD SG1 2AY, ENGLAND
SN 0013-5194
J9 ELECTRON LETT
JI Electron. Lett.
PD JAN 21
PY 2010
VL 46
IS 2
BP 169
EP U97
DI 10.1049/el.2010.2209
PG 2
WC Engineering, Electrical & Electronic
SC Engineering
GA 547LJ
UT WOS:000273889600044
ER
PT J
AU McKinney, BE
Urban, JJ
AF McKinney, Brian E.
Urban, Joseph J.
TI Fluoroolefins as Peptidie Mimetics. 2. A Computational Study of the
Conformational Ramifications of Peptide Bond Replacement
SO JOURNAL OF PHYSICAL CHEMISTRY A
LA English
DT Article
ID MOLECULAR-FORCE FIELD; DENSITY-FUNCTIONAL THEORY; POLARIZABLE CONTINUUM
MODEL; ALANINE DIPEPTIDE; INTERMOLECULAR INTERACTIONS;
INFRARED-SPECTROSCOPY; CHARGE-DISTRIBUTION; ISOSTERES; FLUORINE; MMFF94
AB The design of peptide mimetic compounds is greatly facilitated by the identification of functionalities that call act as peptide replacements. The fluoroalkene moiety has recently been employed for that purpose. The purpose of this work is to examine the conformational ramifications of replacing peptide bonds with fluoroalkene moieties, thus generating peptidomimetics. the alanine dipeptide analogue (ADA) was chosen as a model compound. Three peptidomimetic systems were investigated including one generated by replacement of both peptide bonds of ADA, designated as DFA, and those generated by the single replacement of the C-terminal peptide bond and N-terminal peptide bond, designated as CFA and NFA, respectively. Conformations for all three systems were generated by exhaustive Monte Carlo searching. Relative conformational energies were calculated at the MP2/aug-cc-pVTZ/MP2/aug-cc-pVDZ (for DFA), MP2/-aug-cc-pVTZ/MP2/6-311+G(d,p), B3LYP/6-31+G(d)//B3LYP/6-31+G(d), and MMFF levels of theory. Aqueous phase conformational preferences were determined through calculations making use of continuum hydration models. The results indicate that replacement of both peptide bonds of ADA generates a peptidomimetic with conformational preferences where extended conformations are favored and the conformational profile is relatively insensitive to the nature of the Surrounding medium. This is in contrast to ADA where the conformational preferences depend highly on the surrounding medium and where folded conformations with intramolecular hydrogen bonds are important in the absence of all interacting solvent. CFA and NFA are found to exhibit conformational preferences that do in some ways more closely resemble those of the alanine dipeptide analogue. This is particularly true ill the ease of NFA where interactions between the NH and CF groups are reminiscent of the intramolecular hydrogen bonding possible in ADA.
C1 [McKinney, Brian E.; Urban, Joseph J.] USN Acad, Dept Chem, Annapolis, MD 21402 USA.
RP Urban, JJ (reprint author), USN Acad, Dept Chem, 572 Holloway Rd, Annapolis, MD 21402 USA.
EM urban@usna.edu
FU Naval Academy Research Council; Naval Academy Research Office/ONR; DoD
High Performance Computing Modernization Program
FX Financial support for this work was provided from the Naval Academy
Research Council. B.E.M. received support from Naval Academy Research
Office/ONR. A grant Of computing time was also received from the DoD
High Performance Computing Modernization Program. This Support is
gratefully acknowledged.
NR 50
TC 12
Z9 12
U1 1
U2 10
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 JAN 21
PY 2010
VL 114
IS 2
BP 1123
EP 1133
DI 10.1021/jp9094535
PG 11
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 541FN
UT WOS:000273400600054
PM 20000722
ER
PT J
AU Lee, ZP
Arnone, R
Hu, CM
Werdell, PJ
Lubac, B
AF Lee, ZhongPing
Arnone, Robert
Hu, Chuanmin
Werdell, P. Jeremy
Lubac, Bertrand
TI Uncertainties of optical parameters and their propagations in an
analytical ocean color inversion algorithm
SO APPLIED OPTICS
LA English
DT Article
ID CLEAREST NATURAL-WATERS; REMOTE-SENSING REFLECTANCE; DISSOLVED
ORGANIC-MATTER; THEORETICAL DERIVATION; LEAVING RADIANCE; MODEL;
CHLOROPHYLL; ABSORPTION; PHYTOPLANKTON; BACKSCATTERING
AB Following the theory of error propagation, we developed analytical functions to illustrate and evaluate the uncertainties of inherent optical properties (IOPs) derived by the quasi-analytical algorithm (QAA). In particular, we evaluated the effects of uncertainties of these optical parameters on the inverted IOPs: the absorption coefficient at the reference wavelength, the extrapolation of particle backscattering coefficient, and the spectral ratios of absorption coefficients of phytoplankton and detritus/gelbstoff, respectively. With a systematically simulated data set (46,200 points), we found that the relative uncertainty of QAA-derived total absorption coefficients in the blue-green wavelengths is generally within +/- 10% for oceanic waters. The results of this study not only establish theoretical bases to evaluate and understand the effects of the various variables on IOPs derived from remote-sensing reflectance, but also lay the groundwork to analytically estimate uncertainties of these IOPs for each pixel. These are required and important steps for the generation of quality maps of IOP products derived from satellite ocean color remote sensing. (C) 2010 Optical Society of America
C1 [Lee, ZhongPing; Lubac, Bertrand] Mississippi State Univ, No Gulf Inst, Stennis Space Ctr, Mississippi State, MS 39529 USA.
[Arnone, Robert; Lubac, Bertrand] Stennis Space Ctr, Naval Res Lab, Mississippi State, MS 39529 USA.
[Hu, Chuanmin] Univ S Florida, Coll Marine Sci, St Petersburg, FL 33701 USA.
[Werdell, P. Jeremy] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
RP Lee, ZP (reprint author), Mississippi State Univ, No Gulf Inst, Stennis Space Ctr, Mississippi State, MS 39529 USA.
EM zplee@ngi.msstate.edu
RI Werdell, Jeremy/D-8265-2012; hu, chuanmin/J-5021-2012
FU NASA's Biology and Biogeochemistry and Water- and Energy Cycle Programs;
Naval Research Laboratory
FX The authors are grateful for the financial support provided by NASA's
Biology and Biogeochemistry and Water- and Energy Cycle Programs and by
the Naval Research Laboratory. We also thank Emmanuel Boss and an
anonymous reviewer for the comments and suggestions that greatly
improved the manuscript.
NR 60
TC 71
Z9 72
U1 3
U2 19
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 20
PY 2010
VL 49
IS 3
BP 369
EP 381
DI 10.1364/AO.49.000369
PG 13
WC Optics
SC Optics
GA 547II
UT WOS:000273880200013
PM 20090801
ER
PT J
AU Dai, X
Kochanek, CS
Chartas, G
Kozlowski, S
Morgan, CW
Garmire, G
Agol, E
AF Dai, X.
Kochanek, C. S.
Chartas, G.
Kozlowski, S.
Morgan, C. W.
Garmire, G.
Agol, E.
TI THE SIZES OF THE X-RAY AND OPTICAL EMISSION REGIONS OF RXJ 1131-1231
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE accretion, accretion disks; black hole physics; gravitational lensing;
quasars: individual (RXJ 1131-1231)
ID ACTIVE GALACTIC NUCLEI; GRAVITATIONALLY LENSED QUASAR; ACCRETION DISKS;
QSO 2237+0305; BLACK-HOLE; CONTINUUM EMISSION; MASS FUNCTION; PG
1115+080; Q2237+0305; GALAXIES
AB We use gravitational microlensing of the four images of the z = 0.658 quasar RXJ 1131-1231 to measure the sizes of the optical and X-ray emission regions of the quasar. The (face-on) scale length of the optical disk at rest frame 400 nm is R(lambda,O) = 1.3 x 10(15) cm, while the half-light radius of the rest frame 0.3-17 keV X-ray emission is R(1/2,X) = 2.3 x 10(14) cm. The formal uncertainties are factors of 1.6 and 2.0, respectively. With the exception of the lower limit on the X-ray size, the results are very stable against any changes in the priors used in the analysis. Based on the H beta line width, we estimate that the black hole mass is M(1131) similar or equal to 10(8) M(circle dot), which corresponds to a gravitational radius of r(g) similar or equal to 2 x 10(13) cm. Thus, the X-ray emission is emerging on scales of similar to 10r(g) and the 400 nm emission on scales of similar to 70r(g). A standard thin disk of this size should be significantly brighter than observed. Possible solutions are to have a flatter temperature profile or to scatter a large fraction of the optical flux on larger scales after it is emitted. While our calculations were not optimized to constrain the dark matter fraction in the lens galaxy, dark matter-dominated models are favored. With well-sampled optical and X-ray light curves over a broad range of frequencies, there will be no difficulty in extending our analysis to completely map the structure of the accretion disk as a function of wavelength.
C1 [Dai, X.] Univ Michigan, Dept Astron, Ann Arbor, MI 48109 USA.
[Kochanek, C. S.; Kozlowski, S.] Ohio State Univ, Dept Astron, Columbus, OH 43210 USA.
[Kochanek, C. S.] Ohio State Univ, Ctr Cosmol & Astroparticle Phys, Columbus, OH 43210 USA.
[Chartas, G.; Garmire, G.] Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA.
[Morgan, C. W.] USN Acad, Dept Phys, Annapolis, MD 21402 USA.
[Agol, E.] Univ Washington, Dept Astron, Seattle, WA 98105 USA.
RP Dai, X (reprint author), Univ Michigan, Dept Astron, 500 Church St, Ann Arbor, MI 48109 USA.
RI Agol, Eric/B-8775-2013; Kozlowski, Szymon/G-4799-2013; Dai,
Xinyu/B-5735-2011
OI Agol, Eric/0000-0002-0802-9145; Kozlowski, Szymon/0000-0003-4084-880X;
Dai, Xinyu/0000-0001-9203-2808
FU NASA [GTO-07700072]; NSF [AST 0708082]; SAO [SV4-74018]
FX We thank M. Dietrich, P. Osmer, B. Peterson, and R. Pogge for many
discussions on quasar structure, and O. Blaes for his comments. We thank
D. Sluse for providing estimates of the R-band line contamination in
their VLT spectra of the system. The calculations in this paper were
carried out on a Beowulf cluster obtained as part of the Cluster Ohio
program of the Ohio Supercomputer Center. Support for this work at OSU
was provided by NASA through Chandra Award GTO-07700072 and by the NSF
through grant AST 0708082. The PSU portion of this work was supported by
SAO contract SV4-74018.
NR 49
TC 107
Z9 107
U1 0
U2 3
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
J9 ASTROPHYS J
JI Astrophys. J.
PD JAN 20
PY 2010
VL 709
IS 1
BP 278
EP 285
DI 10.1088/0004-637X/709/1/278
PG 8
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 539TY
UT WOS:000273282500024
ER
PT J
AU Podladchikova, O
Vourlidas, A
Van der Linden, RAM
Wulser, JP
Patsourakos, S
AF Podladchikova, O.
Vourlidas, A.
Van der Linden, R. A. M.
Wuelser, J. -P.
Patsourakos, S.
TI EXTREME ULTRAVIOLET OBSERVATIONS AND ANALYSIS OF MICRO-ERUPTIONS AND
THEIR ASSOCIATED CORONAL WAVES
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE Sun: activity; Sun: corona; Sun: coronal mass ejections (CMEs); Sun: UV
radiation; waves
ID EIT WAVES; QUIET SUN; AUTOMATED DETECTION; MAGNETIC-FIELD; MASS
EJECTIONS; CME; REGIONS; FILAMENT; DIMMINGS; CATALOG
AB The Solar Terrestrial Relations Observatory EUV telescopes have uncovered small-scale eruptive events, tentatively referred to as "mini-CMEs" because they exhibit morphologies similar to large-scale coronal mass ejections (CMEs). Coronal waves and widespread diffuse dimmings followed by the expansion of the coronal waves are the most brightly manifestations of large-scale CMEs. The high temporal and spatial resolution of the EUV data allows us to detect and analyze these eruptive events, to resolve their fine structure, and to show that the observed "mini-waves" have a strong similarity to the large-scale "EIT' waves. Here, we analyze a micro-event observed on 2007 October 17 by the Sun Earth Connection Coronal and Heliospheric Investigation EUV Imager (EUVI) in 171 angstrom (Fe IX) with a 2.5 minute cadence. The mini-CME differs from its large-scale counterparts by having smaller geometrical size, a shorter lifetime, and reduced intensity of coronal wave and dimmings. The small-scale coronal wave develops from micro-flaring sites and propagate up to a distance of 40,000 km in a wide angular sector of the quiet Sun over 20 minutes. The area of the small-scale dimming is two orders of magnitude smaller than for large-scale events. The average speed of the small-scale coronal wave studied is 14 km s(-1). Our observations give strong indications that small-scale EUV coronal waves associated with the micro-eruptions propagate in the form of slow mode waves almost perpendicular to the background magnetic field.
C1 [Podladchikova, O.; Van der Linden, R. A. M.] Royal Observ Belgium, STCE SIDC, B-1180 Brussels, Belgium.
[Vourlidas, A.; Patsourakos, S.] USN, Res Lab, Washington, DC 20375 USA.
[Wuelser, J. -P.] Lockheed Martin Solar & Astrophys Lab, Palo Alto, CA 94304 USA.
RP Podladchikova, O (reprint author), Royal Observ Belgium, STCE SIDC, Ringlaan 3, B-1180 Brussels, Belgium.
EM Elena.Podladchikova@oma.be; vourlidas@nrl.navy.mil;
Ronald.Vanderlinden@oma.be; wuelser@lmsal.com; patsourakos@nrl.navy.mil
RI Vourlidas, Angelos/C-8231-2009
OI Vourlidas, Angelos/0000-0002-8164-5948
NR 51
TC 17
Z9 17
U1 0
U2 2
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
J9 ASTROPHYS J
JI Astrophys. J.
PD JAN 20
PY 2010
VL 709
IS 1
BP 369
EP 376
DI 10.1088/0004-637X/709/1/369
PG 8
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 539TY
UT WOS:000273282500034
ER
PT J
AU Stievater, TH
Park, D
Rabinovich, WS
Pruessner, MW
Kanakaraju, S
Richardson, CJK
Khurgin, JB
AF Stievater, T. H.
Park, D.
Rabinovich, W. S.
Pruessner, M. W.
Kanakaraju, S.
Richardson, C. J. K.
Khurgin, J. B.
TI Enhanced Electro-Optic Phase Shifts in Suspended Waveguides
SO OPTICS EXPRESS
LA English
DT Article
ID 1.55 MU-M; MODULATORS; REFLECTIVITY; FACET; MODE
AB We demonstrate enhanced electro-optic phase shifts in suspended InGaAs/InGaAsP quantum well waveguides compared to attached waveguides. The enhancement stems from an improved overlap between the optical mode and the multiple quantum well layers in thin waveguides when the semiconductor material beneath the waveguide is selectively etched. The measured voltage length product is 0.41 V-cm and the measured propagation loss is 2.3 +/- 0.7 dB/cm for the TE mode in the optical L-band. (C) 2009 Optical Society of America
C1 [Stievater, T. H.; Park, D.; Rabinovich, W. S.; Pruessner, M. W.] USN, Res Lab, Washington, DC 20375 USA.
[Kanakaraju, S.; Richardson, C. J. K.] Lab Phys Sci, College Pk, MD 20740 USA.
[Khurgin, J. B.] Johns Hopkins Univ, Baltimore, MD 21218 USA.
RP Stievater, TH (reprint author), USN, Res Lab, Washington, DC 20375 USA.
EM opticalmems@nrl.navy.mil
RI khurgin, Jacob/A-3278-2010
NR 18
TC 7
Z9 7
U1 0
U2 6
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 18
PY 2010
VL 18
IS 2
BP 885
EP 892
DI 10.1364/OE.18.000885
PG 8
WC Optics
SC Optics
GA 547BP
UT WOS:000273860400051
PM 20173909
ER
PT J
AU Abelev, BI
Aggarwal, MM
Ahammed, Z
Anderson, BD
Arkhipkin, D
Averichev, GS
Balewski, J
Barannikova, O
Barnby, LS
Baudot, J
Baumgart, S
Beavis, DR
Bellwied, R
Benedosso, F
Betancourt, MJ
Betts, RR
Bhasin, A
Bhati, AK
Bichsel, H
Bielcik, J
Bielcikova, J
Biritz, B
Bland, LC
Bombara, M
Bonner, BE
Botje, M
Bouchet, J
Braidot, E
Brandin, AV
Bruna, E
Bueltmann, S
Burton, TP
Bystersky, M
Cai, XZ
Caines, H
Sanchez, MCD
Catu, O
Cebra, D
Cendejas, R
Cervantes, MC
Chajecki, Z
Chaloupka, P
Chattopadhyay, S
Chen, HF
Chen, JH
Chen, JY
Cheng, J
Cherney, M
Chikanian, A
Choi, KE
Christie, W
Clarke, RF
Codrington, MJM
Corliss, R
Cormier, TM
Cosentino, MR
Cramer, JG
Crawford, HJ
Das, D
Dash, S
Daugherity, M
De Silva, LC
Dedovich, TG
DePhillips, M
Derevschikov, AA
de Souza, RD
Didenko, L
Djawotho, P
Dogra, SM
Dong, X
Drachenberg, JL
Draper, JE
Du, F
Dunlop, JC
Mazumdar, MRD
Edwards, WR
Efimov, LG
Elhalhuli, E
Elnimr, M
Emelianov, V
Engelage, I
Eppley, G
Erazmus, B
Estienne, M
Eun, L
Fachini, P
Fatemi, R
Fedorisin, J
Feng, A
Filip, P
Finch, E
Fine, V
Fisyak, Y
Gagliardi, CA
Gaillard, L
Gangadharan, DR
Ganti, MS
Garcia-Solis, EJ
Geromitsos, A
Geurts, F
Ghazikhanian, V
Ghosh, P
Gorbunov, YN
Gordon, A
Grebenyuk, O
Grosnick, D
Grube, B
Guertin, SM
Guimaraes, KSFF
Gupta, A
Gupta, N
Guryn, W
Haag, B
Hallman, TJ
Hamed, A
Harris, JW
He, W
Heinz, M
Heppelmann, S
Hippolyte, B
Hirsch, A
Hjort, E
Hoffman, AM
Hoffmann, GW
Hofman, DJ
Hollis, RS
Huang, HZ
Humanic, TJ
Huo, L
Igo, G
Iordanova, A
Jacobs, P
Jacobs, WW
Jakl, P
Jena, C
Jin, F
Jones, CL
Jones, PG
Joseph, J
Judd, EG
Kabana, S
Kajimoto, K
Kang, K
Kapitan, J
Keane, D
Kechechyan, A
Kettler, D
Khodyrev, VY
Kikola, DP
Kiryluk, J
Kisiel, A
Klein, SR
Knospe, AG
Kocoloski, A
Koetke, DD
Kopytine, M
Korsch, W
Kotchenda, L
Kouchpil, V
Kravtsov, P
Kravtsov, VI
Krueger, K
Krus, M
Kuhn, C
Kumar, L
Kurnadi, P
Lamont, MAC
Landgraf, JM
LaPointe, S
Lauret, J
Lebedev, A
Lednicky, R
Lee, CH
Lee, JH
Leight, W
LeVine, MJ
Li, N
Li, C
Li, Y
Lin, G
Lindenbaum, SJ
Lisa, MA
Liu, F
Liu, J
Liu, L
Ljubicic, T
Llope, WJ
Longacre, RS
Love, WA
Lu, Y
Ludlam, T
Ma, GL
Ma, YG
Mahapatram, DP
Majka, R
Mall, OI
Mangotra, LK
Manweiler, R
Margetis, S
Markert, C
Matis, HS
Matulenko, YA
McShane, TS
Meschanin, A
Milner, R
Minaev, NG
Mioduszewski, S
Mischke, A
Mitchell, J
Mohanty, B
Morozov, DA
Munhoz, MG
Nandi, BK
Nattrass, C
Nayak, TK
Nelson, JM
Netrakanti, PK
Ng, MJ
Nogach, LV
Nurushev, SB
Odyniec, G
Ogawa, A
Okada, H
Okorokov, V
Olson, D
Pachr, M
Page, BS
Pal, SK
Pandit, Y
Panebratsev, Y
Pawlak, T
Peitzmann, T
Perevoztchikov, V
Perkins, C
Peryt, W
Phatak, SC
Planinic, M
Pluta, J
Poljak, N
Poskanzer, AM
Potukuchi, BVKS
Prindle, D
Pruneau, C
Pruthi, NK
Pujahari, PR
Putschke, J
Raniwala, R
Raniwala, S
Ray, RL
Redwine, R
Reed, R
Ridiger, A
Ritter, HG
Roberts, JB
Rogachevskiy, OV
Romero, JL
Rose, A
Roy, C
Ruan, L
Russcher, MJ
Sahoo, R
Sakrejda, I
Sakuma, T
Salur, S
Sandweiss, J
Sarsour, M
Schambach, J
Scharenberg, RP
Schmitz, N
Seger, J
Selyuzhenkov, I
Seyboth, P
Shabetai, A
Shahaliev, E
Shao, M
Sharma, M
Shi, SS
Shi, XH
Sichtermann, ER
Simon, F
Singaraju, RN
Skoby, MJ
Smirnov, N
Snellings, R
Sorensen, P
Sowinski, J
Spinka, HM
Srivastava, B
Stadnik, A
Stanislaus, TDS
Staszak, D
Strikhanov, M
Stringfellow, B
Suaide, AAR
Suarez, MC
Subba, NL
Sumbera, M
Sun, XM
Sun, Y
Sun, Z
Surrow, B
Symons, TJM
de Toledo, AS
Takahashi, J
Tang, AH
Tang, Z
Tarnowsky, T
Thein, D
Thomas, JH
Tian, J
Timmins, AR
Timoshenko, S
Tlusty, D
Tokarev, M
Trainor, TA
Tram, VN
Trattner, AL
Trentalange, S
Tribble, RE
Tsai, OD
Ulery, J
Ullrich, T
Underwood, DG
Van Buren, G
Van Leeuwen, M
Molen, AMV
Vanfossen, JA
Varma, R
Vasconcelos, GMS
Vasilevski, IM
Vasiliev, AN
Videbaek, F
Vigdor, SE
Viyogi, YP
Vokal, S
Voloshin, SA
Wada, M
Waggoner, WT
Walker, M
Wang, F
Wang, G
Wang, JS
Wang, Q
Wang, X
Wang, XL
Wang, Y
Webb, G
Webb, JC
Westfall, GD
Whitten, C
Wieman, H
Wissink, SW
Witt, R
Wu, Y
Xie, W
Xu, N
Xu, QH
Xu, Y
Xu, Z
Yang, Y
Yepes, P
Yoo, IK
Yue, Q
Zawisza, M
Zbroszczyk, H
Zhan, W
Zhang, S
Zhang, WM
Zhang, XP
Zhang, Y
Zhang, ZP
Zhao, Y
Zhong, C
Zhou, J
Zoulkarneev, R
Zoulkarneeva, Y
Zuo, JX
AF Abelev, B. I.
Aggarwal, M. M.
Ahammed, Z.
Anderson, B. D.
Arkhipkin, D.
Averichev, G. S.
Balewski, J.
Barannikova, O.
Barnby, L. S.
Baudot, J.
Baumgart, S.
Beavis, D. R.
Bellwied, R.
Benedosso, F.
Betancourt, M. J.
Betts, R. R.
Bhasin, A.
Bhati, A. K.
Bichsel, H.
Bielcik, J.
Bielcikova, J.
Biritz, B.
Bland, L. C.
Bombara, M.
Bonner, B. E.
Botje, M.
Bouchet, J.
Braidot, E.
Brandin, A. V.
Bruna, E.
Bueltmann, S.
Burton, T. P.
Bystersky, M.
Cai, X. Z.
Caines, H.
de la Barca Sanchez, M. Calderon
Catu, O.
Cebra, D.
Cendejas, R.
Cervantes, M. C.
Chajecki, Z.
Chaloupka, P.
Chattopadhyay, S.
Chen, H. F.
Chen, J. H.
Chen, J. Y.
Cheng, J.
Cherney, M.
Chikanian, A.
Choi, K. E.
Christie, W.
Clarke, R. F.
Codrington, M. J. M.
Corliss, R.
Cormier, T. M.
Cosentino, M. R.
Cramer, J. G.
Crawford, H. J.
Das, D.
Dash, S.
Daugherity, M.
De Silva, L. C.
Dedovich, T. G.
DePhillips, M.
Derevschikov, A. A.
de Souza, R. Derradi
Didenko, L.
Djawotho, P.
Dogra, S. M.
Dong, X.
Drachenberg, J. L.
Draper, J. E.
Du, F.
Dunlop, J. C.
Mazumdar, M. R. Dutta
Edwards, W. R.
Efimov, L. G.
Elhalhuli, E.
Elnimr, M.
Emelianov, V.
Engelage, I.
Eppley, G.
Erazmus, B.
Estienne, M.
Eun, L.
Fachini, P.
Fatemi, R.
Fedorisin, J.
Feng, A.
Filip, P.
Finch, E.
Fine, V.
Fisyak, Y.
Gagliardi, C. A.
Gaillard, L.
Gangadharan, D. R.
Ganti, M. S.
Garcia-Solis, E. J.
Geromitsos, A.
Geurts, F.
Ghazikhanian, V.
Ghosh, P.
Gorbunov, Y. N.
Gordon, A.
Grebenyuk, O.
Grosnick, D.
Grube, B.
Guertin, S. M.
Guimaraes, K. S. F. F.
Gupta, A.
Gupta, N.
Guryn, W.
Haag, B.
Hallman, T. J.
Hamed, A.
Harris, J. W.
He, W.
Heinz, M.
Heppelmann, S.
Hippolyte, B.
Hirsch, A.
Hjort, E.
Hoffman, A. M.
Hoffmann, G. W.
Hofman, D. J.
Hollis, R. S.
Huang, H. Z.
Humanic, T. J.
Huo, L.
Igo, G.
Iordanova, A.
Jacobs, P.
Jacobs, W. W.
Jakl, P.
Jena, C.
Jin, F.
Jones, C. L.
Jones, P. G.
Joseph, J.
Judd, E. G.
Kabana, S.
Kajimoto, K.
Kang, K.
Kapitan, J.
Keane, D.
Kechechyan, A.
Kettler, D.
Khodyrev, V. Yu.
Kikola, D. P.
Kiryluk, J.
Kisiel, A.
Klein, S. R.
Knospe, A. G.
Kocoloski, A.
Koetke, D. D.
Kopytine, M.
Korsch, W.
Kotchenda, L.
Kouchpil, V.
Kravtsov, P.
Kravtsov, V. I.
Krueger, K.
Krus, M.
Kuhn, C.
Kumar, L.
Kurnadi, P.
Lamont, M. A. C.
Landgraf, J. M.
LaPointe, S.
Lauret, J.
Lebedev, A.
Lednicky, R.
Lee, C. -H.
Lee, J. H.
Leight, W.
LeVine, M. J.
Li, N.
Li, C.
Li, Y.
Lin, G.
Lindenbaum, S. J.
Lisa, M. A.
Liu, F.
Liu, J.
Liu, L.
Ljubicic, T.
Llope, W. J.
Longacre, R. S.
Love, W. A.
Lu, Y.
Ludlam, T.
Ma, G. L.
Ma, Y. G.
Mahapatram, D. P.
Majka, R.
Mall, O. I.
Mangotra, L. K.
Manweiler, R.
Margetis, S.
Markert, C.
Matis, H. S.
Matulenko, Yu. A.
McShane, T. S.
Meschanin, A.
Milner, R.
Minaev, N. G.
Mioduszewski, S.
Mischke, A.
Mitchell, J.
Mohanty, B.
Morozov, D. A.
Munhoz, M. G.
Nandi, B. K.
Nattrass, C.
Nayak, T. K.
Nelson, J. M.
Netrakanti, P. K.
Ng, M. J.
Nogach, L. V.
Nurushev, S. B.
Odyniec, G.
Ogawa, A.
Okada, H.
Okorokov, V.
Olson, D.
Pachr, M.
Page, B. S.
Pal, S. K.
Pandit, Y.
Panebratsev, Y.
Pawlak, T.
Peitzmann, T.
Perevoztchikov, V.
Perkins, C.
Peryt, W.
Phatak, S. C.
Planinic, M.
Pluta, J.
Poljak, N.
Poskanzer, A. M.
Potukuchi, B. V. K. S.
Prindle, D.
Pruneau, C.
Pruthi, N. K.
Pujahari, P. R.
Putschke, J.
Raniwala, R.
Raniwala, S.
Ray, R. L.
Redwine, R.
Reed, R.
Ridiger, A.
Ritter, H. G.
Roberts, J. B.
Rogachevskiy, O. V.
Romero, J. L.
Rose, A.
Roy, C.
Ruan, L.
Russcher, M. J.
Sahoo, R.
Sakrejda, I.
Sakuma, T.
Salur, S.
Sandweiss, J.
Sarsour, M.
Schambach, J.
Scharenberg, R. P.
Schmitz, N.
Seger, J.
Selyuzhenkov, I.
Seyboth, P.
Shabetai, A.
Shahaliev, E.
Shao, M.
Sharma, M.
Shi, S. S.
Shi, X. -H.
Sichtermann, E. R.
Simon, F.
Singaraju, R. N.
Skoby, M. J.
Smirnov, N.
Snellings, R.
Sorensen, P.
Sowinski, J.
Spinka, H. M.
Srivastava, B.
Stadnik, A.
Stanislaus, T. D. S.
Staszak, D.
Strikhanov, M.
Stringfellow, B.
Suaide, A. A. R.
Suarez, M. C.
Subba, N. L.
Sumbera, M.
Sun, X. M.
Sun, Y.
Sun, Z.
Surrow, B.
Symons, T. J. M.
de Toledo, A. Szanto
Takahashi, J.
Tang, A. H.
Tang, Z.
Tarnowsky, T.
Thein, D.
Thomas, J. H.
Tian, J.
Timmins, A. R.
Timoshenko, S.
Tlusty, D.
Tokarev, M.
Trainor, T. A.
Tram, V. N.
Trattner, A. L.
Trentalange, S.
Tribble, R. E.
Tsai, O. D.
Ulery, J.
Ullrich, T.
Underwood, D. G.
Van Buren, G.
Van Leeuwen, M.
Molen, A. M. Vander
Vanfossen, J. A., Jr.
Varma, R.
Vasconcelos, G. M. S.
Vasilevski, I. M.
Vasiliev, A. N.
Videbaek, F.
Vigdor, S. E.
Viyogi, Y. P.
Vokal, S.
Voloshin, S. A.
Wada, M.
Waggoner, W. T.
Walker, M.
Wang, F.
Wang, G.
Wang, J. S.
Wang, Q.
Wang, X.
Wang, X. L.
Wang, Y.
Webb, G.
Webb, J. C.
Westfall, G. D.
Whitten, C., Jr.
Wieman, H.
Wissink, S. W.
Witt, R.
Wu, Y.
Xie, W.
Xu, N.
Xu, Q. H.
Xu, Y.
Xu, Z.
Yang, Y.
Yepes, P.
Yoo, I-K.
Yue, Q.
Zawisza, M.
Zbroszczyk, H.
Zhan, W.
Zhang, S.
Zhang, W. M.
Zhang, X. P.
Zhang, Y.
Zhang, Z. P.
Zhao, Y.
Zhong, C.
Zhou, J.
Zoulkarneev, R.
Zoulkarneeva, Y.
Zuo, J. X.
TI System size dependence of associated yields in hadron-triggered jets
STAR Collaboration
SO PHYSICS LETTERS B
LA English
DT Article
DE Parton energy loss; Jet quenching; Di-hadron fragmentation function;
Relativistic heavy-ion collisions
ID RADIATIVE ENERGY-LOSS; COLLISIONS; SUPPRESSION
AB We present results on the system size dependence of high transverse momentum di-hadron correlations at root s(NN) = 200 GeV as measured by STAR at RHIC. Measurements in d + Au, Cu + Cu and Au + Au collisions reveal similar jet-like near-side correlation yields (correlations at small angular separation Delta phi similar to 0, Delta eta similar to 0) for all systems and centralities. Previous measurements have shown Chat the away-side (Delta phi similar to pi) yield is suppressed in heavy-ion collisions. We present measurements of the away-side Suppression as a function of transverse momentum and centrality in Cu + Cu and Au + Au collisions. The suppression is found to be similar in Cu + Cu and An + An collisions at a similar number of participants. The results are compared to theoretical calculations based on the patron quenching model and the modified fragmentation model. The observed differences between data and theory indicate that the correlated yields presented here will further constrain dynamic energy loss models and provide information about the dynamic density profile in heavy-ion collisions. (C) 2009 Elsevier B.V. All rights reserved.
C1 [Baumgart, S.; Bruna, E.; Caines, H.; Catu, O.; Chikanian, A.; Du, F.; Finch, E.; Heinz, M.; Knospe, A. G.; Lin, G.; Majka, R.; Nattrass, C.; Putschke, J.; Sandweiss, J.; Smirnov, N.] Yale Univ, New Haven, CT 06520 USA.
[Draper, J. E.; Krueger, K.; Underwood, D. G.] Argonne Natl Lab, Argonne, IL 60439 USA.
[Barnby, L. S.; Bombara, M.; Burton, T. P.; Elhalhuli, E.; Gaillard, L.; Nelson, J. M.; Timmins, A. R.] Univ Birmingham, Birmingham, W Midlands, England.
[Beavis, D. R.; Bland, L. C.; Christie, W.; DePhillips, M.; Didenko, L.; Dunlop, J. C.; Fachini, P.; Fine, V.; Fisyak, Y.; Gordon, A.; Guryn, W.; Hallman, T. J.; Lamont, M. A. C.; Landgraf, J. M.; Lauret, J.; Lebedev, A.; Lee, J. H.; LeVine, M. J.; Ljubicic, T.; Longacre, R. S.; Love, W. A.; Ludlam, T.; Ogawa, A.; Okada, H.; Perevoztchikov, V.; Ruan, L.; Sorensen, P.; Tang, A. H.; Ullrich, T.; Van Buren, G.; Videbaek, F.; Xu, Z.] Brookhaven Natl Lab, Upton, NY 11973 USA.
[Crawford, H. J.; Engelage, I.; Judd, E. G.; Ng, M. J.; Perkins, C.; Trattner, A. L.] Univ Calif Berkeley, Berkeley, CA 94720 USA.
[de la Barca Sanchez, M. Calderon; Cebra, D.; Das, D.; Haag, B.; Leight, W.; Mall, O. I.; Reed, R.; Romero, J. L.] Univ Calif Davis, Davis, CA 95616 USA.
[Biritz, B.; Cendejas, R.; Gangadharan, D. R.; Ghazikhanian, V.; Guertin, S. M.; Huang, H. Z.; Igo, G.; Kurnadi, P.; Staszak, D.; Trentalange, S.; Tsai, O. D.; Wang, G.; Whitten, C., Jr.] Univ Calif Los Angeles, Los Angeles, CA 90095 USA.
[de Souza, R. Derradi; Takahashi, J.; Vasconcelos, G. M. S.] Univ Estadual Campinas, Sao Paulo, Brazil.
[Abelev, B. I.; Barannikova, O.; Betts, R. R.; Garcia-Solis, E. J.; Hofman, D. J.; Hollis, R. S.; Iordanova, A.; Suarez, M. C.] Univ Illinois, Chicago, IL 60607 USA.
[Cherney, M.; Gorbunov, Y. N.; McShane, T. S.; Seger, J.; Waggoner, W. T.] Creighton Univ, Omaha, NE 68178 USA.
[Bielcik, J.; Bielcikova, J.; Bystersky, M.; Chaloupka, P.; Jakl, P.; Kapitan, J.; Kouchpil, V.; Krus, M.; Pachr, M.; Sumbera, M.; Tlusty, D.] Nucl Phys Inst AS CR, Rez 25068, Czech Republic.
[Averichev, G. S.; Dedovich, T. G.; Efimov, L. G.; Fedorisin, J.; Kechechyan, A.; Panebratsev, Y.; Rogachevskiy, O. V.; Shahaliev, E.; Stadnik, A.; Tokarev, M.; Vokal, S.] Lab High Energy JINR, Dubna, Russia.
[Arkhipkin, D.; Filip, P.; Lednicky, R.; Vasilevski, I. M.; Zoulkarneev, R.; Zoulkarneeva, Y.] Particle Phys Lab JINR, Dubna, Russia.
[Dash, S.; Jena, C.; Mahapatram, D. P.; Phatak, S. C.; Viyogi, Y. P.] Inst Phys, Bhubaneswar 751005, Orissa, India.
[Nandi, B. K.; Pujahari, P. R.; Varma, R.] Indian Inst Technol, Mumbai 400076, Maharashtra, India.
[He, W.; Jacobs, W. W.; Page, B. S.; Selyuzhenkov, I.; Sowinski, J.; Vigdor, S. E.; Wissink, S. W.] Indiana Univ, Bloomington, IN 47408 USA.
[Baudot, J.; Estienne, M.; Hippolyte, B.; Jones, P. G.; Kuhn, C.; Shabetai, A.] Inst Rech Subatom, Strasbourg, France.
[Bhasin, A.; Dogra, S. M.; Gupta, A.; Gupta, N.; Mangotra, L. K.; Potukuchi, B. V. K. S.] Univ Jammu, Jammu 180001, India.
[Anderson, B. D.; Bouchet, J.; Chen, J. H.; Joseph, J.; Keane, D.; Kopytine, M.; Margetis, S.; Pandit, Y.; Subba, N. L.; Vanfossen, J. A., Jr.; Zhang, W. M.] Kent State Univ, Kent, OH 44242 USA.
[Fatemi, R.; Korsch, W.; Webb, G.] Univ Kentucky, Lexington, KY 40506 USA.
[Sun, Z.; Wang, J. S.; Yang, Y.; Zhan, W.] Inst Modern Phys, Lanzhou, Peoples R China.
[Dong, X.; Edwards, W. R.; Grebenyuk, O.; Hjort, E.; Jacobs, P.; Kikola, D. P.; Kiryluk, J.; Klein, S. R.; Matis, H. S.; Odyniec, G.; Olson, D.; Poskanzer, A. M.; Ritter, H. G.; Rose, A.; Sakrejda, I.; Salur, S.; Sichtermann, E. R.; Sun, X. M.; Symons, T. J. M.; Thomas, J. H.; Tram, V. N.; Wieman, H.; Xu, N.; Zhang, X. P.; Zhang, Y.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.
[Balewski, J.; Betancourt, M. J.; Hoffman, A. M.; Jones, C. L.; Kocoloski, A.; Milner, R.; Redwine, R.; Sakuma, T.; Surrow, B.; Walker, M.] MIT, Cambridge, MA 02139 USA.
[Schmitz, N.; Seyboth, P.; Simon, F.] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany.
[Molen, A. M. Vander; Westfall, G. D.] Michigan State Univ, E Lansing, MI 48824 USA.
[Bhasin, A.; Brandin, A. V.; Emelianov, V.; Kotchenda, L.; Kravtsov, P.; Okorokov, V.; Ridiger, A.; Strikhanov, M.; Timoshenko, S.] Moscow Engn Phys Inst, Moscow 115409, Russia.
[Harris, J. W.; Lindenbaum, S. J.] CUNY City Coll, New York, NY 10031 USA.
[Benedosso, F.; Bhasin, A.; Botje, M.; Braidot, E.; Mischke, A.; Peitzmann, T.; Russcher, M. J.; Snellings, R.; Van Leeuwen, M.] NIKHEF H, NL-1009 DB Amsterdam, Netherlands.
[Benedosso, F.; Botje, M.; Braidot, E.; Mischke, A.; Peitzmann, T.; Russcher, M. J.; Snellings, R.; Van Leeuwen, M.] Univ Utrecht, Amsterdam, Netherlands.
[Chajecki, Z.; Humanic, T. J.; Kisiel, A.; Lisa, M. A.] Ohio State Univ, Columbus, OH 43210 USA.
[Bueltmann, S.] Old Dominion Univ, Norfolk, VA 23529 USA.
[Aggarwal, M. M.; Bhati, A. K.; Kumar, L.; Pruthi, N. K.] Panjab Univ, Chandigarh 160014, India.
[Eun, L.; Heppelmann, S.; Zawisza, M.] Penn State Univ, University Pk, PA 16802 USA.
[Derevschikov, A. A.; Khodyrev, V. Yu.; Kravtsov, V. I.; Matulenko, Yu. A.; Meschanin, A.; Minaev, N. G.; Morozov, D. A.; Nogach, L. V.; Nurushev, S. B.; Vasiliev, A. N.] Inst High Energy Phys, Protvino, Russia.
[Choi, K. E.; Grube, B.; Lee, C. -H.; Yoo, I-K.] Purdue Univ, W Lafayette, IN 47907 USA.
[Choi, K. E.; Grube, B.; Lee, C. -H.; Yoo, I-K.] Pusan Natl Univ, Pusan 609735, South Korea.
[Raniwala, R.; Raniwala, S.] Univ Rajasthan, Jaipur 302004, Rajasthan, India.
[Bonner, B. E.; Eppley, G.; Geurts, F.; Liu, J.; Llope, W. J.; Mitchell, J.; Roberts, J. B.; Yepes, P.; Zhou, J.] Rice Univ, Houston, TX 77251 USA.
[Cosentino, M. R.; Guimaraes, K. S. F. F.; Munhoz, M. G.; Suaide, A. A. R.; de Toledo, A. Szanto] Univ Sao Paulo, Sao Paulo, Brazil.
[Chen, H. F.; Li, C.; Lu, Y.; Shao, M.; Sun, Y.; Tang, Z.; Wang, X. L.; Xu, Y.; Zhang, Z. P.; Zhao, Y.] Univ Sci & Technol China, Hefei 230026, Peoples R China.
[Xu, Q. H.] Shandong Univ, Jinan 250100, Shandong, Peoples R China.
[Cai, X. Z.; Jin, F.; Ma, G. L.; Ma, Y. G.; Shi, X. -H.; Tian, J.; Zhang, S.; Zhong, C.; Zuo, J. X.] Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China.
[Erazmus, B.; Geromitsos, A.; Kabana, S.; Roy, C.; Sahoo, R.] SUBATECH, Nantes, France.
[Cervantes, M. C.; Clarke, R. F.; Codrington, M. J. M.; Djawotho, P.; Drachenberg, J. L.; Gagliardi, C. A.; Hamed, A.; Huo, L.; Mioduszewski, S.; Sarsour, M.; Tribble, R. E.] Texas A&M Univ, College Stn, TX 77843 USA.
[Daugherity, M.; Hoffmann, G. W.; Kajimoto, K.; Markert, C.; Ray, R. L.; Schambach, J.; Thein, D.; Wada, M.] Univ Texas Austin, Austin, TX 78712 USA.
[Cheng, J.; Kang, K.; Li, Y.; Wang, X.; Wang, Y.; Yue, Q.] Tsinghua Univ, Beijing 100084, Peoples R China.
[Sharma, M.; Witt, R.] US Naval Acad, Annapolis, MD 21402 USA.
[Grosnick, D.; Koetke, D. D.; Manweiler, R.; Stanislaus, T. D. S.; Webb, J. C.] Valparaiso Univ, Valparaiso, IN 46383 USA.
[Ahammed, Z.; Chattopadhyay, S.; Mazumdar, M. R. Dutta; Ganti, M. S.; Ghosh, P.; Mohanty, B.; Nayak, T. K.; Pal, S. K.; Singaraju, R. N.] Ctr Variable Energy Cyclotron, Kolkata 700064, India.
[Pawlak, T.; Peryt, W.; Pluta, J.; Zbroszczyk, H.] Warsaw Univ Technol, Warsaw, Poland.
[Schmitz, N.; Seyboth, P.; Simon, F.] Univ Washington, Seattle, WA 98195 USA.
[Bellwied, R.; Cormier, T. M.; De Silva, L. C.; Elnimr, M.; LaPointe, S.; Pruneau, C.; Voloshin, S. A.] Wayne State Univ, Detroit, MI 48201 USA.
[Chen, J. Y.; Feng, A.; Li, N.; Liu, F.; Liu, L.; Shi, S. S.; Wu, Y.] CCNU HZNU, Inst Particle Phys, Wuhan 430079, Peoples R China.
[Planinic, M.; Poljak, N.] Univ Zagreb, HR-10002 Zagreb, Croatia.
RP Catu, O (reprint author), Yale Univ, New Haven, CT 06520 USA.
EM catu@rhig.physics.yale.edu
RI Fornazier Guimaraes, Karin Silvia/H-4587-2016; Chaloupka,
Petr/E-5965-2012; Nattrass, Christine/J-6752-2016; Derradi de Souza,
Rafael/M-4791-2013; Cosentino, Mauro/L-2418-2014; Suaide,
Alexandre/L-6239-2016; Inst. of Physics, Gleb Wataghin/A-9780-2017;
Okorokov, Vitaly/C-4800-2017; Yang, Yanyun/B-9485-2014; Barnby,
Lee/G-2135-2010; Mischke, Andre/D-3614-2011; Takahashi, Jun/B-2946-2012;
Planinic, Mirko/E-8085-2012; Bielcikova, Jana/G-9342-2014; Sumbera,
Michal/O-7497-2014; Strikhanov, Mikhail/P-7393-2014; Dogra, Sunil
/B-5330-2013; Yoo, In-Kwon/J-6222-2012; Peitzmann, Thomas/K-2206-2012;
Witt, Richard/H-3560-2012; Voloshin, Sergei/I-4122-2013; Lednicky,
Richard/K-4164-2013
OI Bhasin, Anju/0000-0002-3687-8179; Sorensen, Paul/0000-0001-5056-9391;
Thomas, James/0000-0002-6256-4536; van Leeuwen,
Marco/0000-0002-5222-4888; Fornazier Guimaraes, Karin
Silvia/0000-0003-0578-9533; Nattrass, Christine/0000-0002-8768-6468;
Derradi de Souza, Rafael/0000-0002-2084-7001; Cosentino,
Mauro/0000-0002-7880-8611; Suaide, Alexandre/0000-0003-2847-6556;
Okorokov, Vitaly/0000-0002-7162-5345; Fisyak, Yuri/0000-0002-3151-8377;
Yang, Yanyun/0000-0002-5982-1706; Barnby, Lee/0000-0001-7357-9904;
Takahashi, Jun/0000-0002-4091-1779; Sumbera, Michal/0000-0002-0639-7323;
Strikhanov, Mikhail/0000-0003-2586-0405; Peitzmann,
Thomas/0000-0002-7116-899X;
FU Offices of NP; HEP within the US DOE Office of Science; US NSF; Sloan
Foundation; DFG; CNRS/IN2P3; RA; RPL; EMN of France; STFC; EPSRC of the
United Kingdom; FAPESP of Brazil; Russian Ministry of Sci. and Tech.;
NNSFC; CAS; MoST; MoE of China; IRP; GA of the Czech Republic; FOM of
the Netherlands; DAE; DST; CSIR of the Government of India; Polish State
Committee for Scientific Research; Korea Sci. & Eng. Foundation
FX We thank the RHIC Operations Group and RCF at BNL, and the NERSC Center
at LBNL and the resources provided by the Open Science Grid consortium
for their support. This work was supported in part by the Offices of NP
and HEP within the US DOE Office of Science, the US NSF, the Sloan
Foundation, the DFG cluster of excellence 'Origin and Structure of the
Universe', CNRS/IN2P3, RA, RPL, and EMN of France, STFC and EPSRC of the
United Kingdom, FAPESP of Brazil, the Russian Ministry of Sci. and
Tech., the NNSFC, CAS, MoST, and MoE of China, IRP and GA of the Czech
Republic, FOM of the Netherlands, DAE, DST, and CSIR of the Government
of India, the Polish State Committee for Scientific Research, and the
Korea Sci. & Eng. Foundation.
NR 35
TC 7
Z9 7
U1 0
U2 16
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 JAN 18
PY 2010
VL 683
IS 2-3
BP 123
EP 128
DI 10.1016/j.physletb.2009.12.020
PG 6
WC Astronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fields
SC Astronomy & Astrophysics; Physics
GA 554FO
UT WOS:000274421100008
ER
PT J
AU Reavis, M
Jorgensen, S
AF Reavis, Marisol
Jorgensen, Sarah
TI Acute Pruritic Rash on the Foot
SO AMERICAN FAMILY PHYSICIAN
LA English
DT Editorial Material
C1 [Reavis, Marisol; Jorgensen, Sarah] Naval Hosp, Jacksonville, FL USA.
RP Reavis, M (reprint author), Naval Hosp, Jacksonville, FL USA.
EM Marisol.Reavis@med.navy.mil
NR 6
TC 1
Z9 1
U1 1
U2 1
PU AMER ACAD FAMILY PHYSICIANS
PI KANSAS CITY
PA 8880 WARD PARKWAY, KANSAS CITY, MO 64114-2797 USA
SN 0002-838X
J9 AM FAM PHYSICIAN
JI Am. Fam. Physician
PD JAN 15
PY 2010
VL 81
IS 2
BP 203
EP 204
PG 2
WC Primary Health Care; Medicine, General & Internal
SC General & Internal Medicine
GA 546TC
UT WOS:000273833800014
PM 20082517
ER
PT J
AU Carmichael, MG
Benavides, LC
Holmes, JP
Gates, JD
Mittendorf, EA
Ponniah, S
Peoples, GE
AF Carmichael, Mark G.
Benavides, Linda C.
Holmes, Jarrod P.
Gates, Jeremy D.
Mittendorf, Elizabeth A.
Ponniah, Sathibalan
Peoples, George E.
TI Results of the First Phase 1 Clinical Trial of the HER-2/neu Peptide
(GP2) Vaccine in Disease-Free Breast Cancer Patients
SO CANCER
LA English
DT Article
DE breast cancer; GP2; HER-2/neu; peptide; vaccine
ID CYTOTOXIC T-LYMPHOCYTES; HER2/NEU E75 VACCINE; DENDRITIC CELLS;
OVARIAN-CANCER; IN-VIVO; ANTIGEN; RECURRENCE; EXPRESSION; PREVENTION;
INDUCTION
AB BACKGROUND: HER-2/neu, overexpressed in breast cancer, is a source of immunogenic peptides that include GP2 and E75. Phase 2 testing of E75 as an adjuvant vaccine has suggested a clinical benefit. GP2, derived from the transmembrane portion of HER-2/neu, has differing binding characteristics and may be more immunogenic than E75. Results of the first phase 1 trial of GP2 peptide vaccine are presented. METHODS: Disease-free, lymph node-negative, human leukocyte antigen (HLA)-A2(+) breast cancer patients were enrolled. This dose escalation trial included 4 groups to determine safety and optimal GP2 peptide/granulocyte-macrophage colony-stimulating factor (GM-CSF) dose. Toxicities were monitored. Immunologic response was assessed ex vivo via the HLA-A2:immunoglobulin dimer assay to detect GP2-specific CD8(+) T cells (and E75-specific CD8+ T cells to assess epitope spreading) and in vivo via delayed type hypersensitivity (DTH) reaction (medians/ranges). RESULTS: Eighteen patients were enrolled. All toxicities were grade <= 2. Eight (88.9%) of 9 patients in the first 3 dose groups required GM-CSF dose reductions for local reactions >= 100 mm or grade >= 2 systemic toxicity. GM-CSF dose was reduced to 125 jig for the final dose group. All patients responded immunologically ex vivo (GP2-specific CD8(+) T cells from prevaccination to maximum, 0.4% [0.0%-2.0%] to 1.1% [0.4%-3.6%], P < .001) and in vivo (GP2 pre- to postvaccination DTH, 0 mm [0.0-19.5 mm] to 27.5 mm [0.0-114.5 mm, P < .001]. E75-specific CD8(+) T cells also increased in response to GP2 from prevaccination to maximum (0.8% [0.0%-2.41%] to 1.6% [0.86%-3.72%], P < .001). CONCLUSIONS: The GP2 peptide vaccine appears safe and well tolerated with minimal local/systemic toxicity. GP2 elicited HER-2/neu-specific immune responses, including epitope spreading, in high-risk, lymph node-negative breast cancer patients. These findings support further investigation of the GP2 vaccine for the prevention of breast cancer recurrence. Cancer 2010;116:292-301. (C) 2070 American Cancer Society.
C1 [Benavides, Linda C.; Gates, Jeremy D.; Peoples, George E.] Brooke Army Med Ctr, Dept Surg, Gen Surg Serv, Ft Sam Houston, TX 78234 USA.
[Carmichael, Mark G.; Ponniah, Sathibalan; Peoples, George E.] Uniformed Serv Univ Hlth Sci, Dept Surg, US Mil Canc Inst, Canc Vaccine Dev Program, Bethesda, MD 20814 USA.
[Holmes, Jarrod P.] USN, San Diego Med Ctr, Dept Hematol & Med Oncol, San Diego, CA 92152 USA.
[Mittendorf, Elizabeth A.] Univ Texas MD Anderson Canc Ctr, Dept Surg Oncol, Houston, TX 77030 USA.
RP Peoples, GE (reprint author), Brooke Army Med Ctr, Dept Surg, Gen Surg Serv, 3851 Roger Brooke Dr, Ft Sam Houston, TX 78234 USA.
EM George.Peoples@amedd.army.mil
FU United States Military Cancer Institute, Department of Surgery,
Uniformed Services University of the Health Sciences; Department of
Clinical Investigation, Walter Reed Army Medical Center
FX Supported by the United States Military Cancer Institute, Department of
Surgery, Uniformed Services University of the Health Sciences, and the
Department of Clinical Investigation, Walter Reed Army Medical Center.
NR 22
TC 34
Z9 36
U1 0
U2 4
PU JOHN WILEY & SONS INC
PI HOBOKEN
PA 111 RIVER ST, HOBOKEN, NJ 07030 USA
SN 0008-543X
J9 CANCER
JI Cancer
PD JAN 15
PY 2010
VL 116
IS 2
BP 292
EP 301
DI 10.1002/cncr.24756
PG 10
WC Oncology
SC Oncology
GA 546QT
UT WOS:000273826000008
PM 19924797
ER
PT J
AU MacMahan, J
Brown, J
Brown, J
Thornton, E
Reniers, A
Stanton, T
Henriquez, M
Gallagher, E
Morrison, J
Austin, MJ
Scott, TM
Senechal, N
AF MacMahan, Jamie
Brown, Jeff
Brown, Jenna
Thornton, Ed
Reniers, Ad
Stanton, Tim
Henriquez, Martijn
Gallagher, Edith
Morrison, Jon
Austin, Martin J.
Scott, Tim M.
Senechal, Nadia
TI Mean Lagrangian flow behavior on an open coast rip-channeled beach: A
new perspective
SO MARINE GEOLOGY
LA English
DT Article
DE rip current; surf zone; Lagrangian; exchange
ID CURRENT SYSTEM; SURF-ZONE; NEARSHORE CIRCULATION; CURRENTS; DISPERSION;
DRIFTERS
AB The accepted view of rip currents is that they are an efficient mechanism for transporting material out of the surf zone. Previous rip current campaigns on natural beaches have focused on Eulerian measurements with sparse in situ pressure and current meter arrays. Here, for the first time, spatially synoptic estimates of rip current flow patterns, vorticity, and Lagrangian transport behavior are measured in the field using a fleet of 30 position-tracking surfzone drifters during multiple rip current occurrences on an open coast beach in Monterey, CA. Contrary to the classic view (Shepard et al., 1941), the rip current flow field consisted of semi-enclosed, large-scale vortices that retained the drifters and resulted in a high number of Lagrangian observations that are temporally and spatially repeated. Approximately 19% of the drifters deployed in the rip currents exited the surf zone per hour, on average during the experiments. The observed surf zone retention of drifters is consistent with measurements from different open coast beach rip current systems (14% at meso-macrotidal Truc Vert, France and 16% at macrotidal Perranporth, United Kingdom). The three-hour-average cross-shore rip current velocity at Monterey was 30 cm/s with peak time-averaged velocities of 40-60 cm/s depending on wave and tidal conditions. Drifters that episodically exited the surf zone were transported approximately 2 surf zone widths offshore at similar to 20 cm/s. Published by Elsevier B.V.
C1 [MacMahan, Jamie; Thornton, Ed; Stanton, Tim; Morrison, Jon] Naval Postgrad Sch, Dept Oceanog, Monterey, CA USA.
[Brown, Jeff; Brown, Jenna] Univ Delaware, Newark, DE USA.
[Reniers, Ad] Univ Miami, Rosenstiel Sch Marine Sci, Miami, FL USA.
[Henriquez, Martijn] Delft Univ Technol, Delft, Netherlands.
[Gallagher, Edith] Franklin & Marshall Coll, Lancaster, PA 17604 USA.
[Austin, Martin J.; Scott, Tim M.] Univ Plymouth, Sch Earth Ocean & Environm Sci, Plymouth PL4 8AA, Devon, England.
[Senechal, Nadia] Univ Bordeaux 1, OASU EPOC, F-33405 Talence, France.
RP MacMahan, J (reprint author), Naval Postgrad Sch, Dept Oceanog, Monterey, CA USA.
EM jhmacmah@nps.edu
RI Henriquez, Martijn/F-2311-2010; Austin, Martin/J-4753-2013;
OI Henriquez, Martijn/0000-0001-6614-737X; Austin,
Martin/0000-0003-3179-8767
FU Office of Naval Research Coastal Geosciences; Delaware Sea Grant;
California State Coastal Conservancy; National Science Foundation; ONR
[N0001407WR20226, N0001408WR20006, N00014-05-1-0154, N00014-05-1-0352,
N000140710556, N000140510153]; California State Coastal Conservancy as
part of the Coastal Ocean Circulation Monitoring Program-Northern
California [04-034]; National Science Foundation [OCE 0728324];
University of Delaware; Delft University of Technology; Technology
Foundation STW; applied science division of NWO, in the Netherlands
[DCB.7908]; NSF OCE ADVANCE [0340758]; ECORS
FX We extend our appreciation to the many folks who assisted in obtaining
drifter data set: Jim Stockel, Rob Wyland, Keith Wyckoff, Ron Cowen,
Natalie Lauder, Mark Orzech, Nick Dodd, Jim Lambert, and Lance
Valenzuela. This work was funded through the Office of Naval Research
Coastal Geosciences Program, Delaware Sea Grant, California State
Coastal Conservancy, and the National Science Foundation. The field
experiment, travel support, and staff support (Stockel, Wyland, Wyckoff
and Cowen) was provided by ONR #N0001407WR20226 and #N0001408WR20006.
Supporting experimental infrastructure (directional wave and video obs)
was funded in part by the California State Coastal Conservancy as part
of the Coastal Ocean Circulation Monitoring Program-Northern California
under contract #04-034. MacMahan was supported by ONR contract
#N00014-05-1-0154, N00014-05-1-0352, N0001407WR20226, N0001408WR20006,
and the National Science Foundation OCE 0728324. Brown (JW) was
supported by the Delaware Sea Grant, University of Delaware and ONR
#N0001407WR20226 and #N0001408WR20006. Brown (JA) was supported by the
Delaware Sea Grant, University of Delaware and ONR #N0001407WR20226 and
#N0001408WR20006. Thornton was supported by ONR # N0001407WR20226.
Reniers was supported by ONR #N000140710556. MH was funded by Delft
University of Technology and the Technology Foundation STW, applied
science division of NWO, in the Netherlands, under project number
DCB.7908. Gallagher was supported by ONR #N000140510153 and by the NSF
OCE ADVANCE award # 0340758. Senechal was supported by ECORS project. We
appreciate the valuable comments by Rob Brander and the anonymous
reviewer for making this a better manuscript.
NR 54
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U1 1
U2 21
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0025-3227
EI 1872-6151
J9 MAR GEOL
JI Mar. Geol.
PD JAN 15
PY 2010
VL 268
IS 1-4
BP 1
EP 15
DI 10.1016/j.margeo.2009.09.011
PG 15
WC Geosciences, Multidisciplinary; Oceanography
SC Geology; Oceanography
GA 556RX
UT WOS:000274610100001
ER
PT J
AU Hwang, PA
Zhang, B
Perrie, W
AF Hwang, Paul A.
Zhang, Biao
Perrie, William
TI Depolarized radar return for breaking wave measurement and hurricane
wind retrieval
SO GEOPHYSICAL RESEARCH LETTERS
LA English
DT Article
ID ENERGY-DISSIPATION; SEA CLUTTER; SURFACE; OCEAN; SCATTERING; SPECTRA;
MODEL
AB O. M. Phillips (1988) elucidated the double structure of sea surface scatterers for radar scattering from the ocean surface. The wind generates a distribution of small slope waves and sporadic steep breaking events. The signature of double structure is in the wind speed dependence of radar returns: linear for scattering from gentle waves and cubic for breaking contribution. The composite Bragg (CB) theory successfully describes the former. The breaking contribution remains elusive. Here we show that the depolarized (de-pol) radar return exhibits the typical double structure, its wind speed dependence increases with wind speed from linear to cubic. The enhanced sensitivity of de-pol returns in high winds is ideal for hurricane wind retrieval. The strong breaking connection offers an opportunity to measure wave breaking and associated energy dissipation and area of foam coverage from space, their quantification is important in air-sea interaction and electromagnetic and electro-optical remote sensing. Citation: Hwang, P. A., B. Zhang, and W. Perrie (2010), Depolarized radar return for breaking wave measurement and hurricane wind retrieval, Geophys. Res. Lett., 37, L01604, doi: 10.1029/2009GL041780.
C1 [Hwang, Paul A.] USN, Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
[Zhang, Biao; Perrie, William] Fisheries & Oceans Canada, Bedford Inst Oceanog, Dartmouth, NS B2Y 4A2, Canada.
RP Hwang, PA (reprint author), USN, Res Lab, Remote Sensing Div, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM paul.hwang@nrl.navy.mil; biao.zhang@dfo-mpo.gc.ca;
william.perrie@dfo-mpo.gc.ca
FU Office of Naval Research [61153N]; Canadian Space Agency (GRIP
Programme); Chinese Academy of Sciences [KZCX2-YW-201]; National Science
Foundation of China [40706058]
FX This work is sponsored by the Office of Naval Research (NRL program
element 61153N), the Canadian Space Agency (GRIP Programme), the Chinese
Academy of Sciences (Knowledge Innovation Program, grant KZCX2-YW-201),
and National Science Foundation of China (grant 40706058); in situ data
are provided by the NDBC. We have benefited from many discussions about
radar backscatters with Jakov Toporkov, Mark Sletten, and Tom Ainsworth
(all at NRL) and R2 system noise with Paris Vachon (at DND Ottawa). NRL
contribution number NRL/JA/7260-09-0349.
NR 25
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Z9 31
U1 2
U2 7
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 0094-8276
J9 GEOPHYS RES LETT
JI Geophys. Res. Lett.
PD JAN 14
PY 2010
VL 37
AR L01604
DI 10.1029/2009GL041780
PG 4
WC Geosciences, Multidisciplinary
SC Geology
GA 545JK
UT WOS:000273728100006
ER
PT J
AU McKay, P
Di Iorio, D
AF McKay, Paul
Di Iorio, Daniela
TI Cycle of vertical and horizontal mixing in a shallow tidal creek
SO JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
LA English
DT Article
ID PARTIALLY STRATIFIED ESTUARY; SALT-MARSH ESTUARY; LONGITUDINAL
DISPERSION; REYNOLDS STRESS; NATURAL CHANNELS; RIVER SEVERN; DEAD ZONES;
TURBULENCE; FLOW; CIRCULATION
AB An experimental study of vertical mixing and along-channel dispersion parameterized in terms of horizontal mixing near the mouth of the Duplin River (a tidal creek bordered by extensive intertidal salt marshes on Sapelo Island, Georgia) was carried out over several spring/neap cycles in the fall of 2005. Vertical mixing is modulated on both M4 and fortnightly frequencies with maximum turbulent stresses being generated near the bed on periods of maximum flood and ebb and propagating into the water column showing a linear dependence with depth. Values are significantly greater on spring tide than on neap. Horizontal mixing evaluated by salt fluxes is driven and dominated by tidal dispersion, which is also modulated by the fortnightly spring/neap cycle. Net export of salt from the lower Duplin is shown to be due to residual advection modified by upstream tidal pumping. The tidal dispersion coefficient exhibits a pulsating character with greater values on spring tide followed by smaller values on neap tide.
C1 [McKay, Paul] USN, Res Lab, Stennis Space Ctr, MS 39529 USA.
[McKay, Paul; Di Iorio, Daniela] Univ Georgia, Dept Marine Sci, Athens, GA 30602 USA.
RP McKay, P (reprint author), USN, Res Lab, Code 7322, Stennis Space Ctr, MS 39529 USA.
EM paul.mckay.ctr@nrlssc.navy.mil; daniela@uga.edu
FU NSF [OCE-9982133, OCE-0670959]; Georgia Coastal Ecosystems-Long Term
Ecological Research (GCE-LTER)
FX This work was supported by the NSF (OCE-9982133, OCE-0670959) as part of
the Georgia Coastal Ecosystems-Long Term Ecological Research (GCE-LTER)
project (http://gce-lter.marsci.uga.edu). Thanks go to the captain and
crew of the R/V Savannah for their assistance in deploying and
recovering moorings and to Ken Helm of the UGA Marine Institute for his
assistance in maintaining the moorings. Thanks to M. Stacey's review and
an anonymous reviewer for comments that led to a much improved paper.
NR 52
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U1 4
U2 13
PU AMER GEOPHYSICAL UNION
PI WASHINGTON
PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA
SN 0148-0227
J9 J GEOPHYS RES-OCEANS
JI J. Geophys. Res.-Oceans
PD JAN 14
PY 2010
VL 115
AR C01004
DI 10.1029/2008JC005204
PG 16
WC Oceanography
SC Oceanography
GA 545KK
UT WOS:000273730700001
ER
PT J
AU Holbrook, TL
Galarneau, MR
Dye, JL
Quinn, K
Dougherty, AL
AF Holbrook, Troy Lisa
Galarneau, Michael R.
Dye, Judy L.
Quinn, Kimberly
Dougherty, Amber L.
TI Morphine Use after Combat Injury in Iraq and Post-Traumatic Stress
Disorder
SO NEW ENGLAND JOURNAL OF MEDICINE
LA English
DT Article
ID MENTAL-HEALTH PROBLEMS; MAJOR TRAUMA; RISK-FACTORS; PTSD; AFGHANISTAN;
CARE; PHARMACOTHERAPY; INTERVENTION; PREVENTION; SYMPTOMS
AB BACKGROUND
Post-traumatic stress disorder (PTSD) is a common adverse mental health outcome among seriously injured civilians and military personnel who are survivors of trauma. Pharmacotherapy in the aftermath of serious physical injury or exposure to traumatic events may be effective for the secondary prevention of PTSD.
METHODS
We identified 696 injured U. S. military personnel without serious traumatic brain injury from the Navy-Marine Corps Combat Trauma Registry Expeditionary Medical Encounter Database. Complete data on medications administered were available for all personnel selected. The diagnosis of PTSD was obtained from the Career History Archival Medical and Personnel System and verified in a review of medical records.
RESULTS
Among the 696 patients studied, 243 received a diagnosis of PTSD and 453 did not. The use of morphine during early resuscitation and trauma care was significantly associated with a lower risk of PTSD after injury. Among the patients in whom PTSD developed, 61% received morphine; among those in whom PTSD did not develop, 76% received morphine (odds ratio, 0.47; P<0.001). This association remained significant after adjustment for injury severity, age, mechanism of injury, status with respect to amputation, and selected injury-related clinical factors.
CONCLUSIONS
Our findings suggest that the use of morphine during trauma care may reduce the risk of subsequent development of PTSD after serious injury.
C1 [Holbrook, Troy Lisa; Galarneau, Michael R.; Dye, Judy L.; Quinn, Kimberly; Dougherty, Amber L.] Naval Hlth Res Ctr, San Diego, CA 92106 USA.
[Holbrook, Troy Lisa] EPI SOAR Consulting, San Diego, CA USA.
RP Holbrook, TL (reprint author), Naval Hlth Res Ctr, 140 Sylvester Rd, San Diego, CA 92106 USA.
EM troy@epi-soar.com
FU U.S. Navy Bureau of Medicine and Surgery [60808]
FX Supported by U.S. Navy Bureau of Medicine and Surgery under the Wounded,
Ill, and Injured-Psychological Health-Traumatic Brain Injury Program
(work unit 60808).
NR 39
TC 170
Z9 175
U1 4
U2 22
PU MASSACHUSETTS MEDICAL SOC
PI WALTHAM
PA WALTHAM WOODS CENTER, 860 WINTER ST,, WALTHAM, MA 02451-1413 USA
SN 0028-4793
J9 NEW ENGL J MED
JI N. Engl. J. Med.
PD JAN 14
PY 2010
VL 362
IS 2
BP 110
EP 117
DI 10.1056/NEJMoa0903326
PG 8
WC Medicine, General & Internal
SC General & Internal Medicine
GA 543FU
UT WOS:000273558500008
PM 20071700
ER
PT J
AU Simpkins, BS
Hong, S
Stine, R
Makinen, AJ
Theodore, ND
Mastro, MA
Eddy, CR
Pehrsson, PE
AF Simpkins, B. S.
Hong, S.
Stine, R.
Maekinen, A. J.
Theodore, N. D.
Mastro, M. A.
Eddy, C. R., Jr.
Pehrsson, P. E.
TI Assembly of phosphonic acids on GaN and AlGaN
SO JOURNAL OF PHYSICS D-APPLIED PHYSICS
LA English
DT Article
ID PHOTOELECTRON-SPECTROSCOPY; MONOLAYERS; SURFACE; SILICON; FILMS; OXIDE;
LAYERS; GOLD; XPS
AB Self-assembled monolayers of octadecylphosphonic acid and 16-phosphonohexadecanoic acid (PHDA) were formed on the semiconductor substrates gallium nitride (GaN) and aluminium gallium nitride (AlGaN). The presence of the molecular layers was verified through x-ray photoelectron spectroscopy and ultraviolet photoelectron spectroscopy. Structural information was acquired with infrared spectroscopy which verified the bonding orientation of the carboxyl-containing PHDA. The impact of the molecular layers on the channel conductivity and the surface electronic structure of an AlGaN/GaN heterostructure was measured. Our results indicate that pinning of the surface Fermi level prohibits modification of the channel conductivity by the layer. However, a surface dipole of similar to 0.8 eV is present and associated with both phosphonic acid layers. These results are of direct relevance to field-effect-based biochemical sensors and metal-semiconductor contact formation for this system and provide a fundamental basis for further applications of GaN and AlGaN technology in the fields of biosensing and microelectronics.
C1 [Simpkins, B. S.; Stine, R.; Theodore, N. D.; Pehrsson, P. E.] USN, Res Lab, Div Chem, Washington, DC 20375 USA.
[Hong, S.] Thomas Jefferson High Sch, Mclean, VA USA.
[Maekinen, A. J.] USN, Res Lab, Div Opt Sci, Washington, DC 20375 USA.
[Theodore, N. D.] N Carolina State Univ, Dept Phys, Raleigh, NC 27695 USA.
[Mastro, M. A.; Eddy, C. R., Jr.] USN, Res Lab, Div Elect Sci & Technol, Washington, DC 20375 USA.
RP Simpkins, BS (reprint author), USN, Res Lab, Div Chem, Washington, DC 20375 USA.
RI Stine, Rory/C-6709-2013
FU Office of Naval Research; Air Force Office of Scientific Research;
Defense Threat Reduction Agency (DTRA JSTO-CBD); Engineering
Apprenticeship Program
FX S Hongwould like to thank Dr B S Simpkins for his mentorship, support
and guidance on this project as well as Dr R Stine and Dr A Makinen for
valuable discussions. The authors would also like to thank the Office of
Naval Research, the Air Force Office of Scientific Research, the Defense
Threat Reduction Agency (DTRA JSTO-CBD) and Engineering Apprenticeship
Program for providing funding.
NR 18
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U1 1
U2 15
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 0022-3727
J9 J PHYS D APPL PHYS
JI J. Phys. D-Appl. Phys.
PD JAN 13
PY 2010
VL 43
IS 1
AR 015303
DI 10.1088/0022-3727/43/1/015303
PG 5
WC Physics, Applied
SC Physics
GA 531WH
UT WOS:000272702300022
ER
PT J
AU Landrum, ML
Fieberg, AM
Chun, HM
Crum-Cianflone, NF
Marconi, VC
Weintrob, AC
Ganesan, A
Barthel, RV
Wortmann, G
Agan, BK
AF Landrum, Michael L.
Fieberg, Ann M.
Chun, Helen M.
Crum-Cianflone, Nancy F.
Marconi, Vincent C.
Weintrob, Amy C.
Ganesan, Anuradha
Barthel, Robert V.
Wortmann, Glenn
Agan, Brian K.
TI The Effect of Human Immunodeficiency Virus on Hepatitis B Virus
Serologic Status in Co-Infected Adults
SO PLOS ONE
LA English
DT Article
ID ACTIVE ANTIRETROVIRAL THERAPY; T-CELL RESPONSES; NATURAL-HISTORY; HBV
INFECTION; HIV-INFECTION; SEROCONVERSION; RECOMMENDATIONS; COINFECTION;
MANAGEMENT; MORTALITY
AB Background: Factors associated with serologic hepatitis B virus (HBV) outcomes in HIV-infected individuals remain incompletely understood, yet such knowledge may lead to improvements in the prevention and treatment of chronic HBV infection.
Methods and Findings: HBV-HIV co-infected cohort participants were retrospectively analyzed. HBV serologic outcomes were classified as chronic, resolved, and isolated-HBcAb. Chronic HBV (CHBV) was defined as the presence of HBsAg on two or more occasions at least six months apart. Risk factors for HBV serologic outcome were assessed using logistic regression. Of 2037 participants with HBV infection, 281 (14%) had CHBV. Overall the proportions of HBV infections classified as CHBV were 11%, 16%, and 19% for CD4 cell count strata of >= 500, 200-499, and,200, respectively (p<0.0001). Risk of CHBV was increased for those with HBV infection occurring after HIV diagnosis (OR 2.62; 95% CI 1.78-3.85). This included the subset with CD4 count >= 500 cells/mu L where 21% of those with HBV after HIV diagnosis had CHBV compared with 9% for all other cases of HBV infection in this stratum (p = 0.0004). Prior receipt of HAART was associated with improved HBV serologic outcome overall (p = 0.012), and specifically among those with HBV after HIV (p = 0.002). In those with HBV after HIV, HAART was associated with reduced risk of CHBV overall (OR 0.18; 95% CI 0.04-0.79); including reduced risk in the subsets with CD4 >= 350 cells/mu L (p<0.001) and CD4 >= 500 cells/mu L (p = 0.01) where no cases of CHBV were seen in those with a recent history of HAART use.
Conclusions: Clinical indicators of immunologic status in HIV-infected individuals, such as CD4 cell count, are associated with HBV serologic outcome. These data suggest that immunologic preservation through the increased use of HAART to improve functional anti-HBV immunity, whether by improved access to care or earlier initiation of therapy, would likely improve HBV infection outcomes in HIV-infected individuals.
C1 [Landrum, Michael L.; Fieberg, Ann M.; Weintrob, Amy C.; Ganesan, Anuradha; Agan, Brian K.] Uniformed Serv Univ Hlth Sci, Infect Dis Clin Res Program, Bethesda, MD 20814 USA.
[Landrum, Michael L.; Crum-Cianflone, Nancy F.; Marconi, Vincent C.] San Antonio Mil Med Ctr, Infect Dis Serv, Ft Sam Houston, TX USA.
[Fieberg, Ann M.] Univ Minnesota, Div Biostat, Minneapolis, MN USA.
[Chun, Helen M.] USN, Hlth Res Ctr, Dept Def HIV AIDS Prevent Program, San Diego, CA USA.
[Crum-Cianflone, Nancy F.] USN, Med Ctr, Infect Dis Clin, San Diego, CA USA.
[Weintrob, Amy C.; Wortmann, Glenn] Walter Reed Army Med Ctr, Infect Dis Serv, Washington, DC 20307 USA.
[Ganesan, Anuradha] Natl Naval Med Ctr, Div Infect Dis, Bethesda, MD USA.
[Barthel, Robert V.] USN, Med Ctr, Div Infect Dis, Portsmouth, VA USA.
RP Landrum, ML (reprint author), Uniformed Serv Univ Hlth Sci, Infect Dis Clin Res Program, Bethesda, MD 20814 USA.
EM mlandrum@idcrp.org
RI Marconi, Vincent/N-3210-2014;
OI Marconi, Vincent/0000-0001-8409-4689; Agan, Brian/0000-0002-5114-1669
FU IDCRP [G187YS-RV198]; National Institute of Allergy and Infectious
Diseases, National Institutes of Health (NIH) [Y1-AI-5072]
FX Support for this work (IDCRP# G187YS-RV198) was provided by the
Infectious Disease Clinical Research Program (IDCRP, www. idcrp. org), 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. The IDCRP reviewed the study
design, collected the data, and provided salary support to investigators
(M. L. L. A. M. F., N. F. C., A. C. W., A. G., and B. K. A.). The
analyses, conclusions and decision to submit the manuscript are the
independent work and decision of the authors. The NIH had no role in
study design, data collection and analysis, decision to publish, or
preparation of the manuscript.
NR 33
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U1 0
U2 0
PU PUBLIC LIBRARY SCIENCE
PI SAN FRANCISCO
PA 185 BERRY ST, STE 1300, SAN FRANCISCO, CA 94107 USA
SN 1932-6203
J9 PLOS ONE
JI PLoS One
PD JAN 13
PY 2010
VL 5
IS 1
AR e8687
DI 10.1371/journal.pone.0008687
PG 7
WC Multidisciplinary Sciences
SC Science & Technology - Other Topics
GA 543EV
UT WOS:000273554600036
PM 20084275
ER
PT J
AU Duddu, R
Dave, PR
Damavarapu, R
Gelber, N
Parrish, D
AF Duddu, Raja
Dave, Paritosh R.
Damavarapu, Reddy
Gelber, Nathaniel
Parrish, Damon
TI Synthesis of N-amino- and N-nitramino-nitroimidazoles
SO TETRAHEDRON LETTERS
LA English
DT Article
ID 1-METHYL-2,4,5-TRINITROIMIDAZOLE MTNI; ENERGETIC MATERIALS;
MESITYLENESULFONYLHYDROXYLAMINE
AB Synthesis of anew nitro-substituted 1-amino and 1-nitraminoimidazoles is described. A novel solid state nitration has been developed. (C) 2009 Elsevier Ltd. All rights reserved.
C1 [Duddu, Raja; Dave, Paritosh R.] USA, SAIC, ARDEC, Picatinny Arsenal, NJ 07806 USA.
[Parrish, Damon] USN, Res Lab, Struct Matter Lab, Washington, DC 20375 USA.
RP Duddu, R (reprint author), USA, SAIC, ARDEC, Bldg 3028, Picatinny Arsenal, NJ 07806 USA.
EM raja.duddu@us.army.mil
NR 20
TC 28
Z9 34
U1 2
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 JAN 13
PY 2010
VL 51
IS 2
BP 399
EP 401
DI 10.1016/j.tetlet.2009.11.046
PG 3
WC Chemistry, Organic
SC Chemistry
GA 553OI
UT WOS:000274376300047
ER
PT J
AU Marmorino, GO
Smith, GB
Miller, WD
Bowles, JH
AF Marmorino, George O.
Smith, Geoffrey B.
Miller, W. D.
Bowles, Jeffrey H.
TI Detection of a buoyant coastal wastewater discharge using airborne
hyperspectral and infrared imagery
SO JOURNAL OF APPLIED REMOTE SENSING
LA English
DT Article
DE ocean outfall; wastewater plume; CDOM; hyperspectral; infrared; airborne
remote sensing
ID INTERNAL WAVES; ATMOSPHERIC CORRECTION; INITIAL DILUTION; OCEAN;
OUTFALL; PLUME; TURBULENCE; ALGORITHM; JETS
AB Municipal wastewater discharged into the ocean through a submerged pipe, or outfall, can rise buoyantly to the sea surface, resulting in a near-field mixing zone and, in the presence of an ambient ocean current, an extended surface plume. In this paper, data from a CASI (Compact Airborne Spectrographic Imager) and an airborne infrared (IR) camera are shown to detect a municipal wastewater discharge off the southeast coast of Florida, U. S. A., through its elevated levels of chromophoric dissolved organic matter plus detrital material (CDOM) and cooler sea surface temperatures. CDOM levels within a similar to 15-m-diameter surface 'boil' are found to be about twice those in the ambient shelf water, and surface temperatures near the boil are lower by similar to 0.4 degrees C, comparable to the vertical temperature difference across the ambient water column. The CASI and IR imagery show a nearly identically shaped buoyant plume, consistent with a fully surfacing discharge, but the IR data more accurately delineate the area of most rapid dilution as compared with previous in-situ measurements. The imagery also allows identification of ambient oceanographic processes that affect dispersion and transport in the far field. This includes an alongshore front, which limits offshore dispersion of the discharge, and shoreward-propagating nonlinear internal waves, which may be responsible for an enhanced onshore transport of the discharge.
C1 [Marmorino, George O.; Miller, W. D.] USN, Res Lab, Remote Sensing Div, Computat Phys Inc, Washington, DC 20375 USA.
RP Marmorino, GO (reprint author), USN, Res Lab, Remote Sensing Div, Computat Phys Inc, Washington, DC 20375 USA.
EM marmorino@nrl.navy.mil
OI Miller, W. David/0000-0002-4940-5987
FU Office of Naval Research [72-9201]
FX This work was supported by the Office of Naval Research (Naval Research
Laboratory Project 72-9201). NRL contribution JA/7230-09-0188.
NR 35
TC 2
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U1 0
U2 9
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 JAN 11
PY 2010
VL 4
AR 043502
DI 10.1117/1.3302630
PG 16
WC Environmental Sciences; Remote Sensing; Imaging Science & Photographic
Technology
SC Environmental Sciences & Ecology; Remote Sensing; Imaging Science &
Photographic Technology
GA 552DI
UT WOS:000274267200002
ER
PT J
AU Krowne, CM
AF Krowne, C. M.
TI Intrinsic quantum conductances and capacitances of nanowires and
nanocables
SO PHYSICS LETTERS A
LA English
DT Article
ID WALLED CARBON NANOTUBES; RUTHENIUM DIOXIDE; ELECTRONIC-PROPERTIES;
ELECTRICAL-TRANSPORT; SILICON NANOWIRES; ATOMIC-STRUCTURE; AB-INITIO;
GRAPHENE; DEVICES; METAL
AB Here we calculate the intrinsic quantum capacitance of RuO2 nanowires and RuO2/SiO2 nanocables (filled interiors, or nanotubes, which are empty), based upon available ab initio density of states values, and their conductances allowing determination of transmission coefficients. Comparisons are made to the intrinsic quantum capacitance of carbon nanotubes, and to RuO2 and RuO2/SiO2 Schottky and p-n junction capacitances. We find that the intrinsic quantum capacitance of RuO2 based nanostructures dominates over its junction capacitances by an order of magnitude or more, having important implications for energy and charge storage. Published by Elsevier B.V.
C1 USN, Res Lab, Microwave Technol Branch, Washington, DC 20375 USA.
RP Krowne, CM (reprint author), USN, Res Lab, Microwave Technol Branch, Washington, DC 20375 USA.
EM krowne@webbsight.nrl.navy.mil
NR 69
TC 5
Z9 5
U1 1
U2 11
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 0375-9601
EI 1873-2429
J9 PHYS LETT A
JI Phys. Lett. A
PD JAN 11
PY 2010
VL 374
IS 4
BP 614
EP 619
DI 10.1016/j.physleta.2009.11.045
PG 6
WC Physics, Multidisciplinary
SC Physics
GA 555CO
UT WOS:000274485000023
ER
PT J
AU Abdo, AA
Ackermann, M
Ajello, M
Atwood, WB
Axelsson, M
Baldini, L
Ballet, J
Barbiellini, G
Baring, MG
Bastieri, D
Bechtol, K
Bellazzini, R
Berenji, B
Blandford, RD
Bloom, ED
Bonamente, E
Borgland, AW
Bregeon, J
Brez, A
Brigida, M
Bruel, P
Burnett, TH
Caliandro, GA
Cameron, RA
Camilo, F
Caraveo, PA
Casandjian, JM
Cecchi, C
Celik, O
Chekhtman, A
Cheung, CC
Chiang, J
Ciprini, S
Claus, R
Cognard, I
Cohen-Tanugi, J
Cominsky, LR
Conrad, J
Dermer, CD
de Angelis, A
de Luca, A
de Palma, F
Digel, SW
Silva, EDE
Drell, PS
Dubois, R
Dumora, D
Espinoza, C
Farnier, C
Favuzzi, C
Fegan, SJ
Ferrara, EC
Focke, WB
Frailis, M
Freire, PCC
Fukazawa, Y
Funk, S
Fusco, P
Gargano, F
Gasparrini, D
Gehrels, N
Germani, S
Giavitto, G
Giebels, B
Giglietto, N
Giordano, F
Glanzman, T
Godfrey, G
Grenier, IA
Grondin, MH
Grove, JE
Guillemot, L
Guiriec, S
Hanabata, Y
Harding, AK
Hayashida, M
Hays, E
Hughes, RE
Johannesson, G
Johnson, AS
Johnson, RP
Johnson, TJ
Johnson, WN
Johnston, S
Kamae, T
Katagiri, H
Kataoka, J
Kawai, N
Kerr, M
Knodlseder, J
Kocian, ML
Kramer, M
Kuehn, F
Kuss, M
Lande, J
Latronico, L
Lee, SH
Lemoine-Goumard, M
Longo, F
Loparco, F
Lott, B
Lovellette, MN
Lubrano, P
Lyne, AG
Makeev, A
Marelli, M
Mazziotta, MN
McEnery, JE
Meurer, C
Michelson, PF
Mitthumsiri, W
Mizuno, T
Moiseev, AA
Monte, C
Monzani, ME
Moretti, E
Morselli, A
Moskalenko, IV
Murgia, S
Nakamori, T
Nolan, PL
Norris, JP
Noutsos, A
Nuss, E
Ohsugi, T
Omodei, N
Orlando, E
Ormes, JF
Ozaki, M
Paneque, D
Panetta, JH
Parent, D
Pelassa, V
Pepe, M
Pesce-Rollins, M
Pierbattista, M
Piron, F
Porter, TA
Raino, S
Rando, R
Ray, PS
Razzano, M
Reimer, A
Reimer, O
Reposeur, T
Ritz, S
Rochester, LS
Rodriguez, AY
Romani, RW
Roth, M
Ryde, F
Sadrozinski, HFW
Sanchez, D
Sander, A
Parkinson, PMS
Scargle, JD
Sgro, C
Siskind, EJ
Smith, DA
Smith, PD
Spandre, G
Spinelli, P
Stappers, BW
Strickman, MS
Suson, DJ
Tajima, H
Takahashi, H
Tanaka, T
Thayer, JB
Thayer, JG
Theureau, G
Thompson, DJ
Thorsett, SE
Tibaldo, L
Torres, DF
Tosti, G
Tramacere, A
Uchiyama, Y
Usher, TL
Van Etten, A
Vasileiou, V
Vilchez, N
Vitale, V
Waite, AP
Wallace, E
Wang, P
Watters, K
Weltevrede, P
Winer, BL
Wood, KS
Ylinen, T
Ziegler, M
AF Abdo, A. A.
Ackermann, M.
Ajello, M.
Atwood, W. B.
Axelsson, M.
Baldini, L.
Ballet, J.
Barbiellini, G.
Baring, M. G.
Bastieri, D.
Bechtol, K.
Bellazzini, R.
Berenji, B.
Blandford, R. D.
Bloom, E. D.
Bonamente, E.
Borgland, A. W.
Bregeon, J.
Brez, A.
Brigida, M.
Bruel, P.
Burnett, T. H.
Caliandro, G. A.
Cameron, R. A.
Camilo, F.
Caraveo, P. A.
Casandjian, J. M.
Cecchi, C.
Celik, Oe.
Chekhtman, A.
Cheung, C. C.
Chiang, J.
Ciprini, S.
Claus, R.
Cognard, I.
Cohen-Tanugi, J.
Cominsky, L. R.
Conrad, J.
Dermer, C. D.
de Angelis, A.
de Luca, A.
de Palma, F.
Digel, S. W.
Silva, E. do Couto e
Drell, P. S.
Dubois, R.
Dumora, D.
Espinoza, C.
Farnier, C.
Favuzzi, C.
Fegan, S. J.
Ferrara, E. C.
Focke, W. B.
Frailis, M.
Freire, P. C. C.
Fukazawa, Y.
Funk, S.
Fusco, P.
Gargano, F.
Gasparrini, D.
Gehrels, N.
Germani, S.
Giavitto, G.
Giebels, B.
Giglietto, N.
Giordano, F.
Glanzman, T.
Godfrey, G.
Grenier, I. A.
Grondin, M. -H.
Grove, J. E.
Guillemot, L.
Guiriec, S.
Hanabata, Y.
Harding, A. K.
Hayashida, M.
Hays, E.
Hughes, R. E.
Johannesson, G.
Johnson, A. S.
Johnson, R. P.
Johnson, T. J.
Johnson, W. N.
Johnston, S.
Kamae, T.
Katagiri, H.
Kataoka, J.
Kawai, N.
Kerr, M.
Knoedlseder, J.
Kocian, M. L.
Kramer, M.
Kuehn, F.
Kuss, M.
Lande, J.
Latronico, L.
Lee, S. -H.
Lemoine-Goumard, M.
Longo, F.
Loparco, F.
Lott, B.
Lovellette, M. N.
Lubrano, P.
Lyne, A. G.
Makeev, A.
Marelli, M.
Mazziotta, M. N.
McEnery, J. E.
Meurer, C.
Michelson, P. F.
Mitthumsiri, W.
Mizuno, T.
Moiseev, A. A.
Monte, C.
Monzani, M. E.
Moretti, E.
Morselli, A.
Moskalenko, I. V.
Murgia, S.
Nakamori, T.
Nolan, P. L.
Norris, J. P.
Noutsos, A.
Nuss, E.
Ohsugi, T.
Omodei, N.
Orlando, E.
Ormes, J. F.
Ozaki, M.
Paneque, D.
Panetta, J. H.
Parent, D.
Pelassa, V.
Pepe, M.
Pesce-Rollins, M.
Pierbattista, M.
Piron, F.
Porter, T. A.
Raino, S.
Rando, R.
Ray, P. S.
Razzano, M.
Reimer, A.
Reimer, O.
Reposeur, T.
Ritz, S.
Rochester, L. S.
Rodriguez, A. Y.
Romani, R. W.
Roth, M.
Ryde, F.
Sadrozinski, H. F. -W.
Sanchez, D.
Sander, A.
Parkinson, P. M. Saz
Scargle, J. D.
Sgro, C.
Siskind, E. J.
Smith, D. A.
Smith, P. D.
Spandre, G.
Spinelli, P.
Stappers, B. W.
Strickman, M. S.
Suson, D. J.
Tajima, H.
Takahashi, H.
Tanaka, T.
Thayer, J. B.
Thayer, J. G.
Theureau, G.
Thompson, D. J.
Thorsett, S. E.
Tibaldo, L.
Torres, D. F.
Tosti, G.
Tramacere, A.
Uchiyama, Y.
Usher, T. L.
Van Etten, A.
Vasileiou, V.
Vilchez, N.
Vitale, V.
Waite, A. P.
Wallace, E.
Wang, P.
Watters, K.
Weltevrede, P.
Winer, B. L.
Wood, K. S.
Ylinen, T.
Ziegler, M.
TI FERMI LARGE AREA TELESCOPE OBSERVATIONS OF THE CRAB PULSAR AND NEBULA
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE gamma rays: observations; ISM: individual (Crab Nebula); pulsars:
individual (Crab); supernova remnants
ID GAMMA-RAY PULSARS; HIGH-ENERGY; TIMING OBSERVATIONS; SPACE-TELESCOPE;
LIGHT CURVES; EGRET DATA; X-RAYS; 50 TEV; EMISSION; RADIATION
AB We report on gamma-ray observations of the Crab Pulsar and Nebula using 8 months of survey data with the Fermi Large Area Telescope (LAT). The high quality light curve obtained using the ephemeris provided by the Nancay and Jodrell Bank radio telescopes shows two main peaks stable in phase with energy. The first gamma-ray peak leads the radio main pulse by (281 +/- 12 +/- 21) mu s, giving new constraints on the production site of non-thermal emission in pulsar magnetospheres. The first uncertainty is due to gamma-ray statistics, and the second arises from the rotation parameters. The improved sensitivity and the unprecedented statistics afforded by the LAT enable precise measurement of the Crab Pulsar spectral parameters: cut-off energy at E(c) = (5.8 +/- 0.5 +/- 1.2) GeV, spectral index of Gamma = (1.97 +/- 0.02 +/- 0.06) and integral photon flux above 100 MeV of (2.09 +/- 0.03 +/- 0.18) x 10(-6) cm(-2) s(-1). The first errors represent the statistical error on the fit parameters, while the second ones are the systematic uncertainties. Pulsed gamma-ray photons are observed up to similar to 20 GeV which precludes emission near the stellar surface, below altitudes of around 4-5 stellar radii in phase intervals encompassing the two main peaks. A detailed phase-resolved spectral analysis is also performed: the hardest emission from the Crab Pulsar comes from the bridge region between the two gamma-ray peaks while the softest comes from the falling edge of the second peak. The spectrum of the nebula in the energy range 100 MeV-300 GeV is well described by the sum of two power laws of indices Gamma(sync) = (3.99 +/- 0.12 +/- 0.08) and Gamma(IC) = (1.64 +/- 0.05 +/- 0.07), corresponding to the falling edge of the synchrotron and the rising edge of the inverse Compton (IC) components, respectively. This latter, which links up naturally with the spectral data points of Cherenkov experiments, is well reproduced via IC scattering from standard magnetohydrodynamic nebula models, and does not require any additional radiation mechanism.
C1 [Abdo, A. A.; Chekhtman, A.; Cheung, C. C.; Dermer, C. D.; Grove, J. E.; Johnson, W. N.; Lovellette, M. N.; Makeev, A.; Ray, P. S.; Parkinson, P. M. Saz; Strickman, M. S.; Wood, K. S.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Abdo, A. A.; Cheung, C. C.] Natl Acad Sci, Natl Res Council Res Associate, Washington, DC 20001 USA.
[Ackermann, M.; Ajello, M.; Bechtol, K.; Berenji, B.; Blandford, R. D.; Bloom, E. D.; Borgland, A. W.; Cameron, R. A.; Chiang, J.; Claus, R.; Digel, S. W.; Silva, E. do Couto e; Drell, P. S.; Dubois, R.; Focke, W. B.; Funk, S.; Glanzman, T.; Godfrey, G.; Hayashida, M.; Johannesson, G.; Johnson, A. S.; Kamae, T.; Kocian, M. L.; Lande, J.; Lee, S. -H.; Michelson, P. F.; Mitthumsiri, W.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Nolan, P. L.; Paneque, D.; Panetta, J. H.; Reimer, A.; Reimer, O.; Rochester, L. S.; Romani, R. W.; Tajima, H.; Tanaka, T.; Thayer, J. B.; Thayer, J. G.; Tramacere, A.; Uchiyama, Y.; Usher, T. L.; Van Etten, A.; Waite, A. P.; Wang, P.; Watters, K.] Stanford Univ, Kavli Inst Particle Astrophys & Cosmol, Dept Phys, WW Hansen Expt Phys Lab, Stanford, CA 94305 USA.
[Ackermann, M.; Ajello, M.; Bechtol, K.; Berenji, B.; Blandford, R. D.; Bloom, E. D.; Borgland, A. W.; Cameron, R. A.; Chiang, J.; Claus, R.; Digel, S. W.; Silva, E. do Couto e; Drell, P. S.; Dubois, R.; Focke, W. B.; Funk, S.; Glanzman, T.; Godfrey, G.; Hayashida, M.; Johannesson, G.; Johnson, A. S.; Kamae, T.; Kocian, M. L.; Lande, J.; Lee, S. -H.; Michelson, P. F.; Mitthumsiri, W.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Nolan, P. L.; Paneque, D.; Panetta, J. H.; Reimer, A.; Reimer, O.; Rochester, L. S.; Romani, R. W.; Tajima, H.; Tanaka, T.; Thayer, J. B.; Thayer, J. G.; Tramacere, A.; Uchiyama, Y.; Usher, T. L.; Van Etten, A.; Waite, A. P.; Wang, P.; Watters, K.] Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA.
[Atwood, W. B.; Johnson, R. P.; Porter, T. A.; Ritz, S.; Sadrozinski, H. F. -W.; Thorsett, S. E.; Ziegler, M.] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA.
[Atwood, W. B.; Johnson, R. P.; Porter, T. A.; Ritz, S.; Sadrozinski, H. F. -W.; Thorsett, S. E.; Ziegler, M.] Univ Calif Santa Cruz, Dept Phys, Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA.
[Axelsson, M.] Stockholm Univ, Dept Astron, SE-10691 Stockholm, Sweden.
[Axelsson, M.; Conrad, J.; Meurer, C.; Ryde, F.; Ylinen, T.] Oskar Klein Ctr Cosmoparticle Phys, SE-10691 Stockholm, Sweden.
[Baldini, L.; Bellazzini, R.; Bregeon, J.; Brez, A.; Kuss, M.; Latronico, L.; Omodei, N.; Pesce-Rollins, M.; Razzano, M.; Sgro, C.; Spandre, G.] Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy.
[Ballet, J.; Casandjian, J. M.; Grenier, I. A.; Pierbattista, M.; Tibaldo, L.] Univ Paris Diderot, CEA Saclay, Serv Astrophys, Lab AIM,CEA IRFU CNRS, F-91191 Gif Sur Yvette, France.
[Barbiellini, G.; Giavitto, G.; Longo, F.; Moretti, E.] Ist Nazl Fis Nucl, Sez Trieste, I-34127 Trieste, Italy.
[Barbiellini, G.; Giavitto, G.; Longo, F.; Moretti, E.] Univ Trieste, Dipartimento Fis, I-34127 Trieste, Italy.
[Baring, M. G.] Rice Univ, Dept Phys & Astron, Houston, TX 77251 USA.
[Bastieri, D.; Rando, R.; Tibaldo, L.] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy.
[Bastieri, D.; Rando, R.; Tibaldo, L.] Univ Padua, Dipartimento Fis G Galilei, I-35131 Padua, Italy.
[Bonamente, E.; Cecchi, C.; Germani, S.; Lubrano, P.; Pepe, M.; Tosti, G.] Ist Nazl Fis Nucl, Sez Perugia, I-06123 Perugia, Italy.
[Bonamente, E.; Cecchi, C.; Ciprini, S.; Germani, S.; Lubrano, P.; Pepe, M.; Tosti, G.] Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Giglietto, N.; Giordano, F.; Loparco, F.; Monte, C.; Raino, S.; Spinelli, P.] Univ Bari, Dipartimento Fis M Merlin, I-70126 Bari, Italy.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Giglietto, N.; Giordano, F.; Loparco, F.; Monte, C.; Raino, S.; Spinelli, P.] Politecn Bari, I-70126 Bari, Italy.
[Brigida, M.; de Palma, F.; Favuzzi, C.; Fusco, P.; Gargano, F.; Giglietto, N.; Giordano, F.; Loparco, F.; Mazziotta, M. N.; Monte, C.; Raino, S.; Spinelli, P.] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy.
[Bruel, P.; Fegan, S. J.; Giebels, B.; Sanchez, D.] Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France.
[Burnett, T. H.; Kerr, M.; Roth, M.; Wallace, E.] Univ Washington, Dept Phys, Seattle, WA 98195 USA.
[Caliandro, G. A.; Rodriguez, A. Y.; Torres, D. F.] IEEC CSIC, Inst Ciencies Espai, Barcelona 08193, Spain.
[Camilo, F.] Columbia Univ, Columbia Astrophys Lab, New York, NY 10027 USA.
[Caraveo, P. A.; Marelli, M.] Ist Astrofis Spaziale & Fis Cosm, INAF, I-20133 Milan, Italy.
[Celik, Oe.; Ferrara, E. C.; Gehrels, N.; Harding, A. K.; Hays, E.; Johnson, T. J.; McEnery, J. E.; Moiseev, A. A.; Thompson, D. J.; Vasileiou, V.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Celik, Oe.; Moiseev, A. A.; Vasileiou, V.] CRESST, Greenbelt, MD 20771 USA.
[Celik, Oe.; Vasileiou, V.] Univ Maryland Baltimore Cty, Ctr Space Sci & Technol, Baltimore, MD 21250 USA.
[Celik, Oe.; Vasileiou, V.] Univ Maryland Baltimore Cty, Dept Phys, Baltimore, MD 21250 USA.
[Chekhtman, A.; Makeev, A.] George Mason Univ, Fairfax, VA 22030 USA.
[Cognard, I.; Theureau, G.] CNRS, UMR 6115, LPCE, F-45071 Orleans 02, France.
[Cognard, I.; Theureau, G.] INSU, CNRS, Observ Paris, Stn Radioastron Nancay, F-18330 Nancay, France.
[Cohen-Tanugi, J.; Farnier, C.; Nuss, E.; Pelassa, V.; Piron, F.] Univ Montpellier 2, CNRS, IN2P3, Lab Phys Theor & Astroparticules, Montpellier, France.
[Cominsky, L. R.] Sonoma State Univ, Dept Phys & Astron, Rohnert Pk, CA 94928 USA.
[Conrad, J.; Meurer, C.] Stockholm Univ, Dept Phys, SE-10691 Stockholm, Sweden.
[de Angelis, A.; Frailis, M.] Univ Udine, Dipartimento Fis, I-33100 Udine, Italy.
[de Angelis, A.; Frailis, M.] Ist Nazl Fis Nucl, Sez Trieste, Grp Collegato Udine, I-33100 Udine, Italy.
[de Luca, A.] IUSS, I-27100 Pavia, Italy.
[Dumora, D.; Grondin, M. -H.; Guillemot, L.; Lemoine-Goumard, M.; Lott, B.; Parent, D.; Reposeur, T.; Smith, D. A.] Univ Bordeaux, UMR 5797, Ctr Etud Nucl Bordeaux Gradignan, F-33175 Gradignan, France.
[Dumora, D.; Grondin, M. -H.; Guillemot, L.; Lemoine-Goumard, M.; Lott, B.; Parent, D.; Reposeur, T.; Smith, D. A.] Ctr Etud Nucl Bordeaux Gradignan, UMR 5797, IN2P3, CNRS, F-33175 Gradignan, France.
[Espinoza, C.; Kramer, M.; Lyne, A. G.; Noutsos, A.; Stappers, B. W.; Weltevrede, P.] Univ Manchester, Sch Phys & Astron, Jodrell Bank, Ctr Astrophys, Manchester M13 9PL, Lancs, England.
[Freire, P. C. C.] Arecibo Observ, Arecibo, PR 00612 USA.
[Gasparrini, D.] ASI, Sci Data Ctr, I-00044 Frascati, Roma, Italy.
[Fukazawa, Y.; Hanabata, Y.; Katagiri, H.; Mizuno, T.; Ohsugi, T.; Takahashi, H.] Hiroshima Univ, Dept Phys Sci, Hiroshima 7398526, Japan.
[Gehrels, N.] Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA.
[Gehrels, N.; Johnson, T. J.; McEnery, J. E.; Moiseev, A. A.] Univ Maryland, Dept Phys, College Pk, MD 20742 USA.
[Gehrels, N.; Johnson, T. J.; McEnery, J. E.; Moiseev, A. A.] Univ Maryland, Dept Astron, College Pk, MD 20742 USA.
[Guiriec, S.] Univ Alabama, Ctr Space Plasma & Aeron Res, Huntsville, AL 35899 USA.
[Hughes, R. E.; Kuehn, F.; Sander, A.; Smith, P. D.; Winer, B. L.] Ohio State Univ, Dept Phys, Ctr Cosmol & Astroparticle Phys, Columbus, OH 43210 USA.
[Johnston, S.] CSIRO, Australia Telescope Natl Facil, Epping, NSW 1710, Australia.
Waseda Univ, Shinjuku Ku, Tokyo 1698050, Japan.
[Kawai, N.; Nakamori, T.] Tokyo Inst Technol, Dept Phys, Meguro, Tokyo 1528551, Japan.
[Kawai, N.] RIKEN, Inst Phys & Chem Res, Cosm Radiat Lab, Wako, Saitama 3510198, Japan.
[Knoedlseder, J.; Vilchez, N.] UPS, CNRS, Ctr Etud Spatiale Rayonnements, F-30128 Toulouse 4, France.
[Kramer, M.] Max Planck Inst Radioastron, D-53121 Bonn, Germany.
[Morselli, A.; Vitale, V.] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, I-00133 Rome, Italy.
[Norris, J. P.; Ormes, J. F.] Univ Denver, Dept Phys & Astron, Denver, CO 80208 USA.
[Orlando, E.] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany.
[Ozaki, M.] JAXA, Inst Space & Astronaut Sci, Sagamihara, Kanagawa 2298510, Japan.
[Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria.
[Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria.
[Ryde, F.; Ylinen, T.] Royal Inst Technol KTH, Dept Phys, SE-10691 Stockholm, Sweden.
[Scargle, J. D.] NASA, Ames Res Ctr, Div Space Sci, Moffett Field, CA 94035 USA.
[Siskind, E. J.] NYCB Real Time Comp Inc, Lattingtown, NY 11560 USA.
[Suson, D. J.] Purdue Univ Calumet, Dept Chem & Phys, Hammond, IN 46323 USA.
[Torres, D. F.] ICREA, Barcelona, Spain.
[Tramacere, A.] CIFS, I-10133 Turin, Italy.
[Vitale, V.] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy.
[Ylinen, T.] Univ Kalmar, Sch Pure & Appl Nat Sci, SE-39182 Kalmar, Sweden.
RP Abdo, AA (reprint author), USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
EM grondin@cenbg.in2p3.fr; lemoine@cenbg.in2p3.fr; loparco@ba.infn.it;
mazziotta@ba.infn.it
RI Thompson, David/D-2939-2012; Harding, Alice/D-3160-2012; Gehrels,
Neil/D-2971-2012; McEnery, Julie/D-6612-2012; Baldini, Luca/E-5396-2012;
lubrano, pasquale/F-7269-2012; Morselli, Aldo/G-6769-2011; Nolan,
Patrick/A-5582-2009; Kuss, Michael/H-8959-2012; giglietto,
nicola/I-8951-2012; Tosti, Gino/E-9976-2013; Ozaki,
Masanobu/K-1165-2013; Rando, Riccardo/M-7179-2013; Hays,
Elizabeth/D-3257-2012; Johnson, Neil/G-3309-2014; Reimer,
Olaf/A-3117-2013; Funk, Stefan/B-7629-2015; Loparco,
Francesco/O-8847-2015; Johannesson, Gudlaugur/O-8741-2015; Gargano,
Fabio/O-8934-2015; Moskalenko, Igor/A-1301-2007; Mazziotta, Mario
/O-8867-2015; Sgro, Carmelo/K-3395-2016; Torres, Diego/O-9422-2016;
OI Moretti, Elena/0000-0001-5477-9097; Berenji, Bijan/0000-0002-4551-772X;
Gasparrini, Dario/0000-0002-5064-9495; Tramacere,
Andrea/0000-0002-8186-3793; Baldini, Luca/0000-0002-9785-7726; Ray,
Paul/0000-0002-5297-5278; Marelli, Martino/0000-0002-8017-0338;
Thompson, David/0000-0001-5217-9135; lubrano,
pasquale/0000-0003-0221-4806; Morselli, Aldo/0000-0002-7704-9553;
giglietto, nicola/0000-0002-9021-2888; Thorsett,
Stephen/0000-0002-2025-9613; SPINELLI, Paolo/0000-0001-6688-8864; De
Angelis, Alessandro/0000-0002-3288-2517; Frailis,
Marco/0000-0002-7400-2135; Caraveo, Patrizia/0000-0003-2478-8018;
Bastieri, Denis/0000-0002-6954-8862; Omodei, Nicola/0000-0002-5448-7577;
Pesce-Rollins, Melissa/0000-0003-1790-8018; Axelsson,
Magnus/0000-0003-4378-8785; De Luca, Andrea/0000-0001-6739-687X; Reimer,
Olaf/0000-0001-6953-1385; Funk, Stefan/0000-0002-2012-0080; Loparco,
Francesco/0000-0002-1173-5673; Johannesson,
Gudlaugur/0000-0003-1458-7036; Gargano, Fabio/0000-0002-5055-6395;
Moskalenko, Igor/0000-0001-6141-458X; Mazziotta, Mario
/0000-0001-9325-4672; Torres, Diego/0000-0002-1522-9065; Rando,
Riccardo/0000-0001-6992-818X; Sgro', Carmelo/0000-0001-5676-6214;
Giordano, Francesco/0000-0002-8651-2394
FU 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 and the
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; Science and Technology Facilities
Council of the United Kingdom
FX The Fermi-LAT Collaboration acknowledges generous ongoing support from a
number of agencies and institutes that have supported both the
development and the operation of the LAT as well as scientific data
analysis. These include the National Aeronautics and Space
Administration and the Department of Energy in the United States, the
Commissariat a l'Energie Atomique and the Centre National de la
Recherche Scientifique/Institut National de Physique Nucleaire et de
Physique des Particules in France, the Agenzia Spaziale Italiana and the
Istituto Nazionale di Fisica Nucleare in Italy, the Ministry of
Education, Culture, Sports, Science and Technology (MEXT), High Energy
Accelerator Research Organization (KEK) and Japan Aerospace Exploration
Agency (JAXA) in Japan, and the K.A. Wallenberg Foundation, the Swedish
Research Council and the Swedish National Space Board in Sweden.;
Additional support for science analysis during the operations phase is
gratefully acknowledged from the Istituto Nazionale di Astrofisica in
Italy.; The Nancay Radio Observatory is operated by the Paris
Observatory, associated with the French Centre National de la Recherche
Scientifique (CNRS). The Lovell Telescope is owned and operated by the
University of Manchester as part of the Jodrell Bank Centre for
Astrophysics with support from the Science and Technology Facilities
Council of the United Kingdom.
NR 49
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PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
J9 ASTROPHYS J
JI Astrophys. J.
PD JAN 10
PY 2010
VL 708
IS 2
BP 1254
EP 1267
DI 10.1088/0004-637X/708/2/1254
PG 14
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 536CY
UT WOS:000273021000024
ER
PT J
AU Abdo, AA
Ackermann, M
Ajello, M
Atwood, WB
Axelsson, M
Baldini, L
Ballet, J
Barbiellini, G
Bastieri, D
Bechtol, K
Bellazzini, R
Berenji, B
Bloom, ED
Bonamente, E
Borgland, AW
Bregeon, J
Brez, A
Brigida, M
Bruel, P
Burnett, TH
Caliandro, GA
Cameron, RA
Caraveo, PA
Casandjian, JM
Cavazzuti, E
Cecchi, C
Celik, O
Charles, E
Chekhtman, A
Cheung, CC
Chiang, J
Ciprini, S
Claus, R
Cohen-Tanugi, J
Conrad, J
Cutini, S
Dermer, CD
de Angelis, A
de Palma, F
Silva, EDE
Drell, PS
Dubois, R
Dumora, D
Farnier, C
Favuzzi, C
Fegan, SJ
Focke, WB
Fortin, P
Frailis, M
Fukazawa, Y
Fusco, P
Gargano, F
Gasparrini, D
Gehrels, N
Germani, S
Giebels, B
Giglietto, N
Giordano, F
Glanzman, T
Godfrey, G
Grenier, IA
Grondin, MH
Grove, JE
Guillemot, L
Guiriec, S
Hanabata, Y
Harding, AK
Hayashida, M
Hays, E
Horan, D
Hughes, RE
Johannesson, G
Johnson, AS
Johnson, RP
Johnson, WN
Kamae, T
Katagiri, H
Kataoka, J
Kawai, N
Kerr, M
Knodlseder, J
Kocian, ML
Kuss, M
Lande, J
Latronico, L
Lemoine-Goumard, M
Longo, F
Loparco, F
Lott, B
Lovellette, MN
Lubrano, P
Madejski, GM
Makeev, A
Mazziotta, MN
McConville, W
McEnery, JE
Meurer, C
Michelson, PF
Mitthumsiri, W
Mizuno, T
Moiseev, AA
Monte, C
Monzani, ME
Morselli, A
Moskalenko, IV
Murgia, S
Nolan, PL
Norris, JP
Nuss, E
Ohsugi, T
Omodei, N
Orlando, E
Ormes, JF
Ozaki, M
Paneque, D
Panetta, JH
Parent, D
Pelassa, V
Pepe, M
Piron, F
Porter, TA
Raino, S
Rando, R
Razzano, M
Reimer, A
Reimer, O
Reposeur, T
Ritz, S
Rodriguez, AY
Romani, RW
Roth, M
Ryde, F
Sadrozinski, HFW
Sanchez, D
Sander, A
Parkinson, PMS
Scargle, JD
Sgro, C
Shaw, MS
Siskind, EJ
Smith, DA
Smith, PD
Spandre, G
Spinelli, P
Strickman, MS
Suson, DJ
Takahashi, H
Tanaka, T
Thayer, JB
Thayer, JG
Thompson, DJ
Tibaldo, L
Torres, DF
Tosti, G
Tramacere, A
Uchiyama, Y
Usher, TL
Vasileiou, V
Vilchez, N
Vitale, V
Waite, AP
Wang, P
Winer, BL
Wood, KS
Ylinen, T
Ziegler, M
AF Abdo, A. A.
Ackermann, M.
Ajello, M.
Atwood, W. B.
Axelsson, M.
Baldini, L.
Ballet, J.
Barbiellini, G.
Bastieri, D.
Bechtol, K.
Bellazzini, R.
Berenji, B.
Bloom, E. D.
Bonamente, E.
Borgland, A. W.
Bregeon, J.
Brez, A.
Brigida, M.
Bruel, P.
Burnett, T. H.
Caliandro, G. A.
Cameron, R. A.
Caraveo, P. A.
Casandjian, J. M.
Cavazzuti, E.
Cecchi, C.
Celik, Oe.
Charles, E.
Chekhtman, A.
Cheung, C. C.
Chiang, J.
Ciprini, S.
Claus, R.
Cohen-Tanugi, J.
Conrad, J.
Cutini, S.
Dermer, C. D.
de Angelis, A.
de Palma, F.
do Couto e Silva, E.
Drell, P. S.
Dubois, R.
Dumora, D.
Farnier, C.
Favuzzi, C.
Fegan, S. J.
Focke, W. B.
Fortin, P.
Frailis, M.
Fukazawa, Y.
Fusco, P.
Gargano, F.
Gasparrini, D.
Gehrels, N.
Germani, S.
Giebels, B.
Giglietto, N.
Giordano, F.
Glanzman, T.
Godfrey, G.
Grenier, I. A.
Grondin, M. -H.
Grove, J. E.
Guillemot, L.
Guiriec, S.
Hanabata, Y.
Harding, A. K.
Hayashida, M.
Hays, E.
Horan, D.
Hughes, R. E.
Johannesson, G.
Johnson, A. S.
Johnson, R. P.
Johnson, W. N.
Kamae, T.
Katagiri, H.
Kataoka, J.
Kawai, N.
Kerr, M.
Knoedlseder, J.
Kocian, M. L.
Kuss, M.
Lande, J.
Latronico, L.
Lemoine-Goumard, M.
Longo, F.
Loparco, F.
Lott, B.
Lovellette, M. N.
Lubrano, P.
Madejski, G. M.
Makeev, A.
Mazziotta, M. N.
McConville, W.
McEnery, J. E.
Meurer, C.
Michelson, P. F.
Mitthumsiri, W.
Mizuno, T.
Moiseev, A. A.
Monte, C.
Monzani, M. E.
Morselli, A.
Moskalenko, I. V.
Murgia, S.
Nolan, P. L.
Norris, J. P.
Nuss, E.
Ohsugi, T.
Omodei, N.
Orlando, E.
Ormes, J. F.
Ozaki, M.
Paneque, D.
Panetta, J. H.
Parent, D.
Pelassa, V.
Pepe, M.
Piron, F.
Porter, T. A.
Raino, S.
Rando, R.
Razzano, M.
Reimer, A.
Reimer, O.
Reposeur, T.
Ritz, S.
Rodriguez, A. Y.
Romani, R. W.
Roth, M.
Ryde, F.
Sadrozinski, H. F. -W.
Sanchez, D.
Sander, A.
Parkinson, P. M. Saz
Scargle, J. D.
Sgro, C.
Shaw, M. S.
Siskind, E. J.
Smith, D. A.
Smith, P. D.
Spandre, G.
Spinelli, P.
Strickman, M. S.
Suson, D. J.
Takahashi, H.
Tanaka, T.
Thayer, J. B.
Thayer, J. G.
Thompson, D. J.
Tibaldo, L.
Torres, D. F.
Tosti, G.
Tramacere, A.
Uchiyama, Y.
Usher, T. L.
Vasileiou, V.
Vilchez, N.
Vitale, V.
Waite, A. P.
Wang, P.
Winer, B. L.
Wood, K. S.
Ylinen, T.
Ziegler, M.
TI FERMI OBSERVATIONS OF THE VERY HARD GAMMA-RAY BLAZAR PG 1553+113
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE BL Lacertae objects: individual (PG 1553+113); gamma rays: observations
ID BL LACERTAE OBJECTS; EXTRAGALACTIC BACKGROUND LIGHT; ACTIVE GALACTIC
NUCLEI; SPACE-TELESCOPE SURVEY; LARGE-AREA TELESCOPE; RADIO-SOURCES;
MAGIC TELESCOPE; ENERGY-SPECTRA; HOST GALAXIES; CRAB-NEBULA
AB We report the observations of PG 1553+113 during the first similar to 200 days of Fermi Gamma-ray Space Telescope science operations, from 2008 August 4 to 2009 February 22 (MJD 54682.7-54884.2). This is the first detailed study of PG 1553+113 in the GeV gamma-ray regime and it allows us to fill a gap of three decades in energy in its spectral energy distribution (SED). We find PG 1553+113 to be a steady source with a hard spectrum that is best fit by a simple power law in the Fermi energy band. We combine the Fermi data with archival radio, optical, X-ray, and very high energy (VHE) gamma-ray data to model its broadband SED and find that a simple, one-zone synchrotron self-Compton model provides a reasonable fit. PG 1553+113 has the softest VHE spectrum of all sources detected in that regime and, out of those with significant detections across the Fermi energy bandpass so far, the hardest spectrum in that energy regime. Thus, it has the largest spectral break of any gamma-ray source studied to date, which could be due to the absorption of the intrinsic gamma-ray spectrum by the extragalactic background light (EBL). Assuming this to be the case, we selected a model with a low level of EBL and used it to absorb the power-law spectrum from PG 1553+113 measured with Fermi (200 MeV-157 GeV) to find the redshift, which gave the best fit to the measured VHE data (90 GeV-1.1 TeV) for this parameterization of the EBL. We show that this redshift can be considered an upper limit on the distance to PG 1553+113.
C1 [Abdo, A. A.; Chekhtman, A.; Dermer, C. D.; Grove, J. E.; Johnson, W. N.; Lovellette, M. N.; Makeev, A.; Strickman, M. S.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Abdo, A. A.] Natl Acad Sci, Natl Res Council Res Associate, Washington, DC 20001 USA.
[Ackermann, M.; Ajello, M.; Bechtol, K.; Berenji, B.; Bloom, E. D.; Borgland, A. W.; Cameron, R. A.; Charles, E.; Chiang, J.; Claus, R.; do Couto e Silva, E.; Drell, P. S.; Dubois, R.; Focke, W. B.; Glanzman, T.; Godfrey, G.; Hayashida, M.; Johannesson, G.; Johnson, A. S.; Kamae, T.; Kocian, M. L.; Lande, J.; Madejski, G. M.; Michelson, P. F.; Mitthumsiri, W.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Nolan, P. L.; Paneque, D.; Panetta, J. H.; Reimer, A.; Reimer, O.; Romani, R. W.; Shaw, M. S.; Tanaka, T.; Thayer, J. B.; Thayer, J. G.; Tramacere, A.; Uchiyama, Y.; Usher, T. L.; Waite, A. P.; Wang, P.] Stanford Univ, Kavli Inst Particle Astrophys & Cosmol, Dept Phys, WW Hansen Expt Phys Lab, Stanford, CA 94305 USA.
[Ackermann, M.; Ajello, M.; Bechtol, K.; Berenji, B.; Bloom, E. D.; Borgland, A. W.; Cameron, R. A.; Charles, E.; Chiang, J.; Claus, R.; do Couto e Silva, E.; Drell, P. S.; Dubois, R.; Focke, W. B.; Glanzman, T.; Godfrey, G.; Hayashida, M.; Johannesson, G.; Johnson, A. S.; Kamae, T.; Kocian, M. L.; Lande, J.; Madejski, G. M.; Michelson, P. F.; Mitthumsiri, W.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Nolan, P. L.; Paneque, D.; Panetta, J. H.; Reimer, A.; Reimer, O.; Romani, R. W.; Shaw, M. S.; Tanaka, T.; Thayer, J. B.; Thayer, J. G.; Tramacere, A.; Uchiyama, Y.; Usher, T. L.; Waite, A. P.; Wang, P.] Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA.
[Atwood, W. B.; Johnson, R. P.; Porter, T. A.; Ritz, S.; Sadrozinski, H. F. -W.; Parkinson, P. M. Saz; Ziegler, M.] Univ Calif Santa Cruz, Dept Phys, Santa Cruz Inst Particle Phys, Santa Cruz, CA 95064 USA.
[Atwood, W. B.; Johnson, R. P.; Porter, T. A.; Ritz, S.; Sadrozinski, H. F. -W.; Parkinson, P. M. Saz; Ziegler, M.] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA.
[Axelsson, M.] Stockholm Univ, Dept Astron, SE-10691 Stockholm, Sweden.
[Axelsson, M.; Conrad, J.; Meurer, C.; Ryde, F.; Ylinen, T.] AlbaNova, Oskar Klein Ctr Cosmoparticle Phys, SE-10691 Stockholm, Sweden.
[Baldini, L.; Bellazzini, R.; Bregeon, J.; Brez, A.; Kuss, M.; Latronico, L.; Omodei, N.; Razzano, M.; Sgro, C.; Spandre, G.] Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy.
[Ballet, J.; Casandjian, J. M.; Grenier, I. A.; Tibaldo, L.] 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.; Rando, R.; Tibaldo, L.] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy.
[Bastieri, D.; Rando, R.; Tibaldo, L.] Univ Padua, Dipartimento Fis G Galilei, I-35131 Padua, Italy.
[Bonamente, E.; Cecchi, C.; Ciprini, S.; Germani, S.; Lubrano, P.; Pepe, M.; Tosti, G.] Ist Nazl Fis Nucl, Sez Perugia, I-06123 Perugia, Italy.
[Bonamente, E.; Cecchi, C.; Ciprini, S.; Germani, S.; Lubrano, P.; Pepe, M.; Tosti, G.] Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy.
[Brigida, M.; Caliandro, G. A.; de Palma, F.; Favuzzi, C.; Fusco, P.; Giglietto, N.; Giordano, F.; Loparco, F.; Monte, C.; Raino, S.; Spinelli, P.] Univ Politecn Bari, Dipartimento Fis M Merlin, I-70126 Bari, Italy.
[Brigida, M.; Caliandro, G. A.; de Palma, F.; Favuzzi, C.; Fusco, P.; Gargano, F.; Giglietto, N.; Giordano, F.; Loparco, F.; Mazziotta, M. N.; Monte, C.; Raino, S.; Spinelli, P.] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy.
[Bruel, P.; Fegan, S. J.; Fortin, P.; Giebels, B.; Horan, D.; Sanchez, D.] Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France.
[Burnett, T. H.; Kerr, M.; Roth, M.] Univ Washington, Dept Phys, Seattle, WA 98195 USA.
[Caraveo, P. A.] Ist Astrofis Spaziale & Fis Cosm, INAF, I-20133 Milan, Italy.
[Cavazzuti, E.; Cutini, S.; Gasparrini, D.] Agenzia Spaziale Italiana ASI Sci Data Ctr, I-00044 Rome, Italy.
[Celik, Oe.; Moiseev, A. A.; Vasileiou, V.] NASA, Goddard Space Flight Ctr, CRESST, Greenbelt, MD 20771 USA.
[Celik, Oe.; Hughes, R. E.; Vasileiou, V.] Univ Maryland, Baltimore, MD 21250 USA.
[Chekhtman, A.; Makeev, A.] George Mason Univ, Fairfax, VA 22030 USA.
[Cohen-Tanugi, J.; Farnier, C.; Nuss, E.; Pelassa, V.; Piron, F.] Univ Montpellier 2, CNRS, IN2P3, Lab Phys Theor & Astroparticules, Montpellier, France.
[Conrad, J.; Meurer, C.] Stockholm Univ, Dept Phys, AlbaNova, SE-10691 Stockholm, Sweden.
[de Angelis, A.; Frailis, M.] Ist Nazl Fis Nucl, Sez Trieste, Grp Coll Udine, I-33100 Udine, Italy.
[de Angelis, A.; Frailis, M.] Univ Udine, Dipartimento Fis, I-33100 Udine, Italy.
[Dumora, D.; Grondin, M. -H.; Guillemot, L.; Lemoine-Goumard, M.; Lott, B.; Parent, D.; Reposeur, T.; Smith, D. A.] Univ Bordeaux, Ctr Etud Nucl Bordeaux Gradignan, UMR 5797, F-33175 Gradignan, France.
[Dumora, D.; Grondin, M. -H.; Guillemot, L.; Lemoine-Goumard, M.; Lott, B.; Parent, D.; Reposeur, T.; Smith, D. A.] CNRS, IN2P3, Ctr Etud Nucl Bordeaux Gradignan, UMR 5797, F-33175 Gradignan, France.
[Fukazawa, Y.; Hanabata, Y.; Katagiri, H.; Mizuno, T.; Ohsugi, T.; Takahashi, H.] Hiroshima Univ, Dept Phys Sci, Hiroshima 7398526, Japan.
[Gehrels, N.; McConville, W.; Moiseev, A. A.] Univ Maryland, College Pk, MD 20742 USA.
[Guiriec, S.] Univ Alabama, Huntsville, AL 35899 USA.
[Sander, A.; Smith, P. D.; Winer, B. L.] Ohio State Univ, Dept Phys, Ctr Cosmol & Astroparticle Phys, Columbus, OH 43210 USA.
[Kataoka, J.; Kawai, N.] Tokyo Inst Technol, Dept Phys, Meguro, Tokyo 1528551, Japan.
[Kataoka, J.] Waseda Univ, Shinjuku Ku, Tokyo 1698050, Japan.
[Kawai, N.] RIKEN, Cosm Radiat Lab, Wako, Saitama 3510198, Japan.
[Knoedlseder, J.; Vilchez, N.] UPS, CNRS, Ctr Etud Spatiale Rayonnements, F-30128 Toulouse 4, France.
[Morselli, A.; Vitale, V.] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, I-00133 Rome, Italy.
[Norris, J. P.; Ormes, J. F.] Univ Denver, Dept Phys & Astron, Denver, CO 80208 USA.
[Orlando, E.] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany.
[Ozaki, M.; Uchiyama, Y.] JAXA, Inst Space & Astronaut Sci, Sagamihara, Kanagawa 2298510, Japan.
[Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria.
[Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria.
[Rodriguez, A. Y.; Torres, D. F.] CSIC, IEEC, Inst Ciencies Espai, Barcelona 08193, Spain.
[Ryde, F.; Ylinen, T.] Royal Inst Technol KTH, Dept Phys, AlbaNova, SE-10691 Stockholm, Sweden.
[Scargle, J. D.] NASA, Ames Res Ctr, Div Space Sci, Moffett Field, CA 94035 USA.
[Siskind, E. J.] NYCB Real Time Comp Inc, Lattingtown, NY 11560 USA.
[Suson, D. J.] Purdue Univ Calumet, Dept Chem & Phys, Hammond, IN 46323 USA.
[Torres, D. F.] ICREA, Barcelona, Spain.
[Tramacere, A.] CIFS, I-10133 Turin, Italy.
[Vitale, V.] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy.
[Ylinen, T.] Univ Kalmar, Sch Pure & Appl Nat Sci, SE-39182 Kalmar, Sweden.
RP Abdo, AA (reprint author), USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
EM deirdre@llr.in2p3.fr
RI Thompson, David/D-2939-2012; Harding, Alice/D-3160-2012; Gehrels,
Neil/D-2971-2012; McEnery, Julie/D-6612-2012; Baldini, Luca/E-5396-2012;
lubrano, pasquale/F-7269-2012; Morselli, Aldo/G-6769-2011; Nolan,
Patrick/A-5582-2009; Kuss, Michael/H-8959-2012; giglietto,
nicola/I-8951-2012; Tosti, Gino/E-9976-2013; Ozaki,
Masanobu/K-1165-2013; Rando, Riccardo/M-7179-2013; Hays,
Elizabeth/D-3257-2012; Johnson, Neil/G-3309-2014; Reimer,
Olaf/A-3117-2013; Johannesson, Gudlaugur/O-8741-2015; Gargano,
Fabio/O-8934-2015; Loparco, Francesco/O-8847-2015; Moskalenko,
Igor/A-1301-2007; Mazziotta, Mario /O-8867-2015; Sgro,
Carmelo/K-3395-2016; Torres, Diego/O-9422-2016;
OI Thompson, David/0000-0001-5217-9135; lubrano,
pasquale/0000-0003-0221-4806; Morselli, Aldo/0000-0002-7704-9553;
giglietto, nicola/0000-0002-9021-2888; Frailis,
Marco/0000-0002-7400-2135; Caraveo, Patrizia/0000-0003-2478-8018;
Bastieri, Denis/0000-0002-6954-8862; Omodei, Nicola/0000-0002-5448-7577;
Axelsson, Magnus/0000-0003-4378-8785; Cutini, Sara/0000-0002-1271-2924;
Berenji, Bijan/0000-0002-4551-772X; Gasparrini,
Dario/0000-0002-5064-9495; Tramacere, Andrea/0000-0002-8186-3793;
Baldini, Luca/0000-0002-9785-7726; Reimer, Olaf/0000-0001-6953-1385;
Johannesson, Gudlaugur/0000-0003-1458-7036; Gargano,
Fabio/0000-0002-5055-6395; Loparco, Francesco/0000-0002-1173-5673;
Moskalenko, Igor/0000-0001-6141-458X; Mazziotta, Mario
/0000-0001-9325-4672; Torres, Diego/0000-0002-1522-9065; Rando,
Riccardo/0000-0001-6992-818X; Sgro', Carmelo/0000-0001-5676-6214;
Giordano, Francesco/0000-0002-8651-2394; SPINELLI,
Paolo/0000-0001-6688-8864; De Angelis, Alessandro/0000-0002-3288-2517
FU 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;
Wallenberg Foundation in Sweden
FX The Fermi LAT Collaboration acknowledges the generous support of a
number of agencies and institutes that have supported the Fermi LAT
Collaboration. 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 from
the following agencies is also gratefully acknowledged: the Istituto
Nazionale di Astrofisica in Italy and the K. A. Wallenberg Foundation in
Sweden. 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 the
SIMBAD database, operated at CDS, Strasbourg, France. Thanks to Wystan
Benbow, Luigi Costamante, Daniela Dorner, Andrea Tramacere, and Robert
Wagner for supplying archival data points.
NR 66
TC 28
Z9 28
U1 0
U2 3
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
J9 ASTROPHYS J
JI Astrophys. J.
PD JAN 10
PY 2010
VL 708
IS 2
BP 1310
EP 1320
DI 10.1088/0004-637X/708/2/1310
PG 11
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 536CY
UT WOS:000273021000028
ER
PT J
AU Weltevrede, P
Abdo, AA
Ackermann, M
Ajello, M
Axelsson, M
Baldini, L
Ballet, J
Barbiellini, G
Bastieri, D
Baughman, BM
Bechtol, K
Bellazzini, R
Berenji, B
Bloom, ED
Bonamente, E
Borgland, AW
Bregeon, J
Brez, A
Brigida, M
Bruel, P
Burnett, TH
Buson, S
Caliandro, GA
Cameron, RA
Camilo, F
Caraveo, PA
Casandjian, JM
Cecchi, C
Celik, O
Charles, E
Chekhtman, A
Cheung, CC
Chiang, J
Ciprini, S
Claus, R
Cognard, I
Cohen-Tanugi, J
Cominsky, LR
Conrad, J
Cutini, S
Dermer, CD
Desvignes, G
de Angelis, A
de Luca, A
de Palma, F
Digel, SW
Dormody, M
Silva, EDE
Drell, PS
Dubois, R
Dumora, D
Farnier, C
Favuzzi, C
Fegan, SJ
Focke, WB
Fortin, P
Frailis, M
Freire, PCC
Fusco, P
Gargano, F
Gasparrini, D
Gehrels, N
Germani, S
Giavitto, G
Giebels, B
Giglietto, N
Giordano, F
Glanzman, T
Godfrey, G
Grenier, IA
Grondin, MH
Grove, JE
Guillemot, L
Guiriec, S
Hanabata, Y
Harding, AK
Hays, E
Hobbs, G
Hughes, RE
Jackson, MS
Johannesson, G
Johnson, AS
Johnson, TJ
Johnson, WN
Johnston, S
Kamae, T
Katagiri, H
Kataoka, J
Kawai, N
Keith, M
Kerr, M
Knodlseder, J
Kocian, ML
Kramer, M
Kuss, M
Lande, J
Latronico, L
Lemoine-Goumard, M
Longo, F
Loparco, F
Lott, B
Lovellette, MN
Lubrano, P
Lyne, AG
Makeev, A
Manchester, RN
Mazziotta, MN
McEnery, JE
McGlynn, S
Meurer, C
Michelson, PF
Mitthumsiri, W
Mizuno, T
Moiseev, AA
Monte, C
Monzani, ME
Morselli, A
Moskalenko, IV
Murgia, S
Nolan, PL
Norris, JP
Nuss, E
Ohsugi, T
Omodei, N
Orlando, E
Ormes, JF
Paneque, D
Panetta, JH
Parent, D
Pelassa, V
Pepe, M
Pesce-Rollins, M
Piron, F
Porter, TA
Raino, S
Rando, R
Ransom, SM
Razzano, M
Rea, N
Reimer, A
Reimer, O
Reposeur, T
Rochester, LS
Rodriguez, AY
Romani, RW
Roth, M
Ryde, F
Sadrozinski, HFW
Sanchez, D
Sander, A
Parkinson, PMS
Sgro, C
Siskind, EJ
Smith, DA
Smith, PD
Spandre, G
Spinelli, P
Stappers, BW
Strickman, MS
Suson, DJ
Tajima, H
Takahashi, H
Tanaka, T
Thayer, JB
Thayer, JG
Theureau, G
Thompson, DJ
Thorsett, SE
Tibaldo, L
Torres, DF
Tosti, G
Tramacere, A
Uchiyama, Y
Usher, TL
Van Etten, A
Vasileiou, V
Venter, C
Vilchez, N
Vitale, V
Waite, AP
Wang, P
Wang, N
Watters, K
Winer, BL
Wood, KS
Ylinen, T
Ziegler, M
AF Weltevrede, P.
Abdo, A. A.
Ackermann, M.
Ajello, M.
Axelsson, M.
Baldini, L.
Ballet, J.
Barbiellini, G.
Bastieri, D.
Baughman, B. M.
Bechtol, K.
Bellazzini, R.
Berenji, B.
Bloom, E. D.
Bonamente, E.
Borgland, A. W.
Bregeon, J.
Brez, A.
Brigida, M.
Bruel, P.
Burnett, T. H.
Buson, S.
Caliandro, G. A.
Cameron, R. A.
Camilo, F.
Caraveo, P. A.
Casandjian, J. M.
Cecchi, C.
Celik, Oe.
Charles, E.
Chekhtman, A.
Cheung, C. C.
Chiang, J.
Ciprini, S.
Claus, R.
Cognard, I.
Cohen-Tanugi, J.
Cominsky, L. R.
Conrad, J.
Cutini, S.
Dermer, C. D.
Desvignes, G.
de Angelis, A.
de Luca, A.
de Palma, F.
Digel, S. W.
Dormody, M.
do Couto e Silva, E.
Drell, P. S.
Dubois, R.
Dumora, D.
Farnier, C.
Favuzzi, C.
Fegan, S. J.
Focke, W. B.
Fortin, P.
Frailis, M.
Freire, P. C. C.
Fusco, P.
Gargano, F.
Gasparrini, D.
Gehrels, N.
Germani, S.
Giavitto, G.
Giebels, B.
Giglietto, N.
Giordano, F.
Glanzman, T.
Godfrey, G.
Grenier, I. A.
Grondin, M. -H.
Grove, J. E.
Guillemot, L.
Guiriec, S.
Hanabata, Y.
Harding, A. K.
Hays, E.
Hobbs, G.
Hughes, R. E.
Jackson, M. S.
Johannesson, G.
Johnson, A. S.
Johnson, T. J.
Johnson, W. N.
Johnston, S.
Kamae, T.
Katagiri, H.
Kataoka, J.
Kawai, N.
Keith, M.
Kerr, M.
Knoedlseder, J.
Kocian, M. L.
Kramer, M.
Kuss, M.
Lande, J.
Latronico, L.
Lemoine-Goumard, M.
Longo, F.
Loparco, F.
Lott, B.
Lovellette, M. N.
Lubrano, P.
Lyne, A. G.
Makeev, A.
Manchester, R. N.
Mazziotta, M. N.
McEnery, J. E.
McGlynn, S.
Meurer, C.
Michelson, P. F.
Mitthumsiri, W.
Mizuno, T.
Moiseev, A. A.
Monte, C.
Monzani, M. E.
Morselli, A.
Moskalenko, I. V.
Murgia, S.
Nolan, P. L.
Norris, J. P.
Nuss, E.
Ohsugi, T.
Omodei, N.
Orlando, E.
Ormes, J. F.
Paneque, D.
Panetta, J. H.
Parent, D.
Pelassa, V.
Pepe, M.
Pesce-Rollins, M.
Piron, F.
Porter, T. A.
Raino, S.
Rando, R.
Ransom, S. M.
Razzano, M.
Rea, N.
Reimer, A.
Reimer, O.
Reposeur, T.
Rochester, L. S.
Rodriguez, A. Y.
Romani, R. W.
Roth, M.
Ryde, F.
Sadrozinski, H. F. -W.
Sanchez, D.
Sander, A.
Parkinson, P. M. Saz
Sgro, C.
Siskind, E. J.
Smith, D. A.
Smith, P. D.
Spandre, G.
Spinelli, P.
Stappers, B. W.
Strickman, M. S.
Suson, D. J.
Tajima, H.
Takahashi, H.
Tanaka, T.
Thayer, J. B.
Thayer, J. G.
Theureau, G.
Thompson, D. J.
Thorsett, S. E.
Tibaldo, L.
Torres, D. F.
Tosti, G.
Tramacere, A.
Uchiyama, Y.
Usher, T. L.
Van Etten, A.
Vasileiou, V.
Venter, C.
Vilchez, N.
Vitale, V.
Waite, A. P.
Wang, P.
Wang, N.
Watters, K.
Winer, B. L.
Wood, K. S.
Ylinen, T.
Ziegler, M.
TI GAMMA-RAY AND RADIO PROPERTIES OF SIX PULSARS DETECTED BY THE FERMI
LARGE AREA TELESCOPE
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE pulsars: individual (PSRs J0631+1036, J0659+1414, J0742-2822,
J1420-6048, J1509-5850, J1718-3825)
ID MIDDLE-AGED PULSARS; PSR B0656+14; SOUTHERN PULSARS; EMPIRICAL-THEORY;
NEUTRON-STARS; WIND NEBULAE; EMISSION REGION; SPACE-TELESCOPE; TIMING
PACKAGE; YOUNG PULSARS
AB We report the detection of pulsed gamma-rays for PSRs J0631+1036, J0659+1414, J0742-2822, J1420-6048, J1509-5850, and J1718-3825 using the Large Area Telescope on board the Fermi Gamma-ray Space Telescope (formerly known as GLAST). Although these six pulsars are diverse in terms of their spin parameters, they share an important feature: their gamma-ray light curves are (at least given the current count statistics) single peaked. For two pulsars, there are hints for a double-peaked structure in the light curves. The shapes of the observed light curves of this group of pulsars are discussed in the light of models for which the emission originates from high up in the magnetosphere. The observed phases of the gamma-ray light curves are, in general, consistent with those predicted by high-altitude models, although we speculate that the gamma-ray emission of PSR J0659+1414, possibly featuring the softest spectrum of all Fermi pulsars coupled with a very low efficiency, arises from relatively low down in the magnetosphere. High-quality radio polarization data are available showing that all but one have a high degree of linear polarization. This allows us to place some constraints on the viewing geometry and aids the comparison of the gamma-ray light curves with high-energy beam models.
C1 [Weltevrede, P.; Hobbs, G.; Johnston, S.; Keith, M.; Manchester, R. N.] CSIRO, Australia Telescope Natl Facil, Epping, NSW 1710, Australia.
[Weltevrede, P.; Kramer, M.; Lyne, A. G.; Stappers, B. W.] Univ Manchester, Sch Phys & Astron, Jodrell Bank, Ctr Astrophys, Manchester M13 9PL, Lancs, England.
[Abdo, A. A.; Chekhtman, A.; Cheung, C. C.; Cutini, S.; Dermer, C. D.; Grove, J. E.; Johnson, W. N.; Lovellette, M. N.; Makeev, A.; Strickman, M. S.; Wood, K. S.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Abdo, A. A.; Cheung, C. C.] Natl Acad Sci, Natl Res Council Res Associate, Washington, DC 20001 USA.
[Ackermann, M.; Ajello, M.; Bechtol, K.; Berenji, B.; Bloom, E. D.; Borgland, A. W.; Cameron, R. A.; Charles, E.; Chiang, J.; Claus, R.; Digel, S. W.; do Couto e Silva, E.; Drell, P. S.; Dubois, R.; Focke, W. B.; Glanzman, T.; Godfrey, G.; Johannesson, G.; Johnson, A. S.; Kamae, T.; Kocian, M. L.; Lande, J.; Michelson, P. F.; Mitthumsiri, W.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Nolan, P. L.; Paneque, D.; Panetta, J. H.; Reimer, A.; Reimer, O.; Rochester, L. S.; Romani, R. W.; Tajima, H.; Tanaka, T.; Thayer, J. B.; Thayer, J. G.; Tramacere, A.; Uchiyama, Y.; Usher, T. L.; Van Etten, A.; Waite, A. P.; Wang, P.; Watters, K.] Stanford Univ, Dept Phys, Kavli Inst Particle Astrophys & Cosmol, WW Hansen Expt Phys Lab, Stanford, CA 94305 USA.
[Ackermann, M.; Ajello, M.; Bechtol, K.; Berenji, B.; Bloom, E. D.; Borgland, A. W.; Cameron, R. A.; Charles, E.; Chiang, J.; Claus, R.; Digel, S. W.; do Couto e Silva, E.; Drell, P. S.; Dubois, R.; Focke, W. B.; Glanzman, T.; Godfrey, G.; Johannesson, G.; Johnson, A. S.; Kamae, T.; Kocian, M. L.; Lande, J.; Michelson, P. F.; Mitthumsiri, W.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Nolan, P. L.; Paneque, D.; Panetta, J. H.; Reimer, A.; Reimer, O.; Rochester, L. S.; Romani, R. W.; Tajima, H.; Tanaka, T.; Thayer, J. B.; Thayer, J. G.; Tramacere, A.; Uchiyama, Y.; Usher, T. L.; Van Etten, A.; Waite, A. P.; Wang, P.; Watters, K.] Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA.
[Axelsson, M.] Stockholm Univ, Dept Astron, SE-10691 Stockholm, Sweden.
[Axelsson, M.; Conrad, J.; Jackson, M. S.; McGlynn, S.; Meurer, C.; Ryde, F.; Ylinen, T.] AlbaNova, Oskar Klein Ctr Cosmoparticle Phys, SE-10691 Stockholm, Sweden.
[Baldini, L.; Bellazzini, R.; Bregeon, J.; Brez, A.; Kuss, M.; Latronico, L.; Omodei, N.; Pesce-Rollins, M.; Razzano, M.; Sgro, C.; Spandre, G.] Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy.
[Ballet, J.; Casandjian, J. M.; Grenier, I. A.; Tibaldo, L.] Univ Paris Diderot, CNRS, CEA Saclay, Lab AIM,CEA,IRFU,Serv Astrophys, F-91191 Gif Sur Yvette, France.
[Barbiellini, G.; Giavitto, 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.; Rando, R.; Tibaldo, L.] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy.
[Bastieri, D.; Buson, S.; Rando, R.; Tibaldo, L.] Univ Padua, Dipartimento Fis G Galilei, I-35131 Padua, Italy.
[Baughman, B. M.; Hughes, R. E.; Sander, A.; Smith, P. D.; Winer, B. L.] Ohio State Univ, Dept Phys, Ctr Cosmol & Astroparticle Phys, Columbus, OH 43210 USA.
[Bonamente, E.; Cecchi, C.; Ciprini, S.; Germani, S.; Lubrano, P.; Pepe, M.; Tosti, G.] Ist Nazl Fis Nucl, Sez Perugia, I-06123 Perugia, Italy.
[Bonamente, E.; Cecchi, C.; Ciprini, S.; Germani, S.; Lubrano, P.; Pepe, M.; Tosti, G.] Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy.
[Brigida, M.; Caliandro, G. A.; de Palma, F.; Favuzzi, C.; Fusco, P.; Giglietto, N.; Giordano, F.; Loparco, F.; Monte, C.; Raino, S.; Spinelli, P.] Univ Politecn Bari, Dipartimento Fis M Merlin, I-70126 Bari, Italy.
[Brigida, M.; Caliandro, G. A.; de Palma, F.; Favuzzi, C.; Fusco, P.; Gargano, F.; Giglietto, N.; Giordano, F.; Loparco, F.; Mazziotta, M. N.; Monte, C.; Raino, S.; Spinelli, P.] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy.
[Bruel, P.; Fegan, S. J.; Fortin, P.; Giebels, B.; Sanchez, D.] Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France.
[Burnett, T. H.; Kerr, M.; Roth, M.] Univ Washington, Dept Phys, Seattle, WA 98195 USA.
[Camilo, F.] Columbia Univ, Columbia Astrophys Lab, New York, NY 10027 USA.
[Caraveo, P. A.; de Luca, A.] INAF Ist Astrofis Spaziale & Fis Cosm, I-20133 Milan, Italy.
[Celik, Oe.; Moiseev, A. A.; Vasileiou, V.] NASA, Goddard Space Flight Ctr, CRESST, Greenbelt, MD 20771 USA.
[Celik, Oe.; Vasileiou, V.] Univ Maryland, Baltimore, MD 21250 USA.
[Chekhtman, A.; Makeev, A.] George Mason Univ, Fairfax, VA 22030 USA.
[Cognard, I.; Desvignes, G.; Theureau, G.] CNRS, LPCE, UMR 6115, F-45071 Orleans 02, France.
[Cognard, I.; Desvignes, G.; Theureau, G.] CNRS, Observ Paris, INSU, Stn Radioastron Nancay, F-18330 Nancay, France.
[Cohen-Tanugi, J.; Farnier, C.; Nuss, E.; Pelassa, V.; Piron, F.] Univ Montpellier 2, CNRS, IN2P3, Lab Phys Theor & Astroparticules, Montpellier, France.
[Cominsky, L. R.] Sonoma State Univ, Dept Phys & Astron, Rohnert Pk, CA 94928 USA.
[Conrad, J.; Jackson, M. S.; Meurer, C.] Stockholm Univ, Dept Phys, AlbaNova, SE-10691 Stockholm, Sweden.
[Gasparrini, D.] Agenzia Spaziale Italiana ASI Sci Data Ctr, I-00044 Rome, Italy.
[de Angelis, A.; Frailis, M.] Univ Udine, Dipartimento Fis, I-33100 Udine, Italy.
[de Angelis, A.; Frailis, M.] Ist Nazl Fis Nucl, Sez Trieste, Grp Coll Udine, I-33100 Udine, Italy.
[de Luca, A.] IUSS, I-27100 Pavia, Italy.
[Dormody, M.; Porter, T. A.; Sadrozinski, H. F. -W.; Parkinson, P. M. Saz; Thorsett, S. E.; Ziegler, M.] Univ Calif Santa Cruz, Santa Cruz Inst Particle Phys, Dept Phys, Santa Cruz, CA 95064 USA.
[Dormody, M.; Porter, T. A.; Sadrozinski, H. F. -W.; Parkinson, P. M. Saz; Thorsett, S. E.; Ziegler, M.] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA.
[Dumora, D.; Grondin, M. -H.; Lemoine-Goumard, M.; Lott, B.; Parent, D.; Reposeur, T.; Smith, D. A.] Univ Bordeaux, Ctr Etud Nucl Bordeaux Gradignan, UMR 5797, F-33175 Gradignan, France.
[Dumora, D.; Grondin, M. -H.; Lemoine-Goumard, M.; Lott, B.; Parent, D.; Reposeur, T.; Smith, D. A.] CNRS, IN2P3, Ctr Etud Nucl Bordeaux Gradignan, UMR 5797, F-33175 Gradignan, France.
[Freire, P. C. C.] Arecibo Observ, Arecibo, PR 00612 USA.
[Gehrels, N.; Johnson, T. J.; McEnery, J. E.; Moiseev, A. A.] Univ Maryland, College Pk, MD 20742 USA.
[Guillemot, L.; Kramer, M.] Max Planck Inst Radioastron, D-53121 Bonn, Germany.
[Guiriec, S.] Univ Alabama, Huntsville, AL 35899 USA.
[Hanabata, Y.; Katagiri, H.; Mizuno, T.; Ohsugi, T.; Takahashi, H.] Hiroshima Univ, Dept Phys Sci, Hiroshima 7398526, Japan.
[Jackson, M. S.; McGlynn, S.; Ryde, F.; Ylinen, T.] Royal Inst Technol, AlbaNova, Dept Phys, SE-10691 Stockholm, Sweden.
[Kataoka, J.; Kawai, N.] Tokyo Inst Technol, Dept Phys, Meguro, Tokyo 1528551, Japan.
[Kataoka, J.] Waseda Univ, Shinjuku Ku, Tokyo 1698050, Japan.
[Kawai, N.] RIKEN, Cosm Radiat Lab, Wako, Saitama 3510198, Japan.
[Knoedlseder, J.; Vilchez, N.] UPS, CNRS, Ctr Etud Spatiale Rayonnements, F-31028 Toulouse 4, France.
[Morselli, A.; Vitale, V.] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, I-00133 Rome, Italy.
[Norris, J. P.; Ormes, J. F.] Univ Denver, Dept Phys & Astron, Denver, CO 80208 USA.
[Orlando, E.] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany.
[Ransom, S. M.] Natl Radio Astron Observ, Charlottesville, VA 22903 USA.
[Rea, N.; Rodriguez, A. Y.; Torres, D. F.] CSIC, IEEC, Inst Ciencies Espai, Barcelona 08193, Spain.
[Rea, N.] Sterrenkundig Inst Anton Pannekoek, NL-1098 SJ Amsterdam, Netherlands.
[Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria.
[Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria.
[Siskind, E. J.] NYCB Real Time Comp Inc, Lattingtown, NY 11560 USA.
[Suson, D. J.] Purdue Univ Calumet, Dept Chem & Phys, Hammond, IN 46323 USA.
[Torres, D. F.] ICREA, Barcelona, Spain.
[Tramacere, A.] CIFS, I-10133 Turin, Italy.
[Uchiyama, Y.] JAXA, Inst Space & Astronaut Sci, Sagamihara, Kanagawa 2298510, Japan.
[Venter, C.] North West Univ, ZA-2520 Potchefstroom, South Africa.
[Vitale, V.] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy.
[Wang, N.] NAOC, Urumqi Observ, Urumqi 830011, Peoples R China.
[Ylinen, T.] Univ Kalmar, Sch Pure & Appl Nat Sci, SE-39182 Kalmar, Sweden.
RP Weltevrede, P (reprint author), CSIRO, Australia Telescope Natl Facil, Epping, NSW 1710, Australia.
EM weltevrede@manchester.ac.uk; Simon.Johnston@atnf.csiro.au;
smith@cenbg.in2p3.fr
RI Johnson, Neil/G-3309-2014; Reimer, Olaf/A-3117-2013; Rea,
Nanda/I-2853-2015; Johannesson, Gudlaugur/O-8741-2015; Gargano,
Fabio/O-8934-2015; Loparco, Francesco/O-8847-2015; Moskalenko,
Igor/A-1301-2007; Mazziotta, Mario /O-8867-2015; Sgro,
Carmelo/K-3395-2016; Torres, Diego/O-9422-2016; Rando,
Riccardo/M-7179-2013; Venter, Christo/E-6884-2011; Thompson,
David/D-2939-2012; Harding, Alice/D-3160-2012; Gehrels,
Neil/D-2971-2012; Hays, Elizabeth/D-3257-2012; McEnery,
Julie/D-6612-2012; Baldini, Luca/E-5396-2012; lubrano,
pasquale/F-7269-2012; Morselli, Aldo/G-6769-2011; Nolan,
Patrick/A-5582-2009; Kuss, Michael/H-8959-2012; giglietto,
nicola/I-8951-2012; Tosti, Gino/E-9976-2013
OI Cutini, Sara/0000-0002-1271-2924; Berenji, Bijan/0000-0002-4551-772X;
Gasparrini, Dario/0000-0002-5064-9495; Tramacere,
Andrea/0000-0002-8186-3793; Baldini, Luca/0000-0002-9785-7726; SPINELLI,
Paolo/0000-0001-6688-8864; De Angelis, Alessandro/0000-0002-3288-2517;
Frailis, Marco/0000-0002-7400-2135; Caraveo,
Patrizia/0000-0003-2478-8018; Bastieri, Denis/0000-0002-6954-8862;
Omodei, Nicola/0000-0002-5448-7577; Pesce-Rollins,
Melissa/0000-0003-1790-8018; Axelsson, Magnus/0000-0003-4378-8785; De
Luca, Andrea/0000-0001-6739-687X; Ransom, Scott/0000-0001-5799-9714;
Reimer, Olaf/0000-0001-6953-1385; Rea, Nanda/0000-0003-2177-6388;
Johannesson, Gudlaugur/0000-0003-1458-7036; Gargano,
Fabio/0000-0002-5055-6395; Loparco, Francesco/0000-0002-1173-5673;
Moskalenko, Igor/0000-0001-6141-458X; Mazziotta, Mario
/0000-0001-9325-4672; Torres, Diego/0000-0002-1522-9065; Rando,
Riccardo/0000-0001-6992-818X; Sgro', Carmelo/0000-0001-5676-6214;
Thorsett, Stephen/0000-0002-2025-9613; Venter,
Christo/0000-0002-2666-4812; Thompson, David/0000-0001-5217-9135;
lubrano, pasquale/0000-0003-0221-4806; Morselli,
Aldo/0000-0002-7704-9553; giglietto, nicola/0000-0002-9021-2888;
FU Commonwealth of Australia; Science and Technology Facilities Council of
the United Kingdom; 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 Australia Telescope is funded by the Commonwealth of Australia for
operation as a National Facility managed by the CSIRO. The Nan, cay
Radio Observatory is operated by the Paris Observatory, associated with
the French Centre National de la Recherche Scientifique (CNRS). The
Lovell Telescope is owned and operated by the University of Manchester
as part of the Jodrell Bank Centre for Astrophysics with support from
the Science and Technology Facilities Council of the United Kingdom. The
Fermi LAT Collaboration acknowledges generous ongoing support from a
number of agencies and institutes that have supported both the
development and the operation of the LAT as well as scientific data
analysis. These include the National Aeronautics and Space
Administration and the Department of Energy in the United States, the
Commissariat a l'Energie Atomique and the Centre National de la
Recherche Scientifique/Institut National de Physique Nucleaire et de
Physique des Particules in France, the Agenzia Spaziale Italiana and the
Istituto Nazionale di Fisica Nucleare in Italy, the Ministry of
Education, Culture, Sports, Science and Technology (MEXT), High Energy
Accelerator Research Organization (KEK) and Japan Aerospace Exploration
Agency (JAXA) in Japan, and the K.A. Wallenberg Foundation, the Swedish
Research Council and the Swedish National Space Board in Sweden.
Additional support for science analysis during the operations phase is
gratefully acknowledged from the Istituto Nazionale di Astrofisica in
Italy and the Centre National d'Etudes Spatiales in France.
NR 86
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PA TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
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J9 ASTROPHYS J
JI Astrophys. J.
PD JAN 10
PY 2010
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IS 2
BP 1426
EP 1441
DI 10.1088/0004-637X/708/2/1426
PG 16
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 536CY
UT WOS:000273021000038
ER
PT J
AU Acciari, VA
Aliu, E
Arlen, T
Aune, T
Bautista, M
Beilicke, M
Benbow, W
Bottcher, M
Boltuch, D
Bradbury, SM
Buckley, JH
Bugaev, V
Byrum, K
Cannon, A
Cesarini, A
Chow, YC
Ciupik, L
Cogan, P
Cui, W
Duke, C
Falcone, A
Finley, JP
Finnegan, G
Fortson, L
Furniss, A
Galante, N
Gall, D
Gillanders, GH
Godambe, S
Grube, J
Guenette, R
Gyuk, G
Hanna, D
Holder, J
Hui, CM
Humensky, TB
Kaaret, P
Karlsson, N
Kertzman, M
Kieda, D
Konopelko, A
Krawczynski, H
Krennrich, F
Lang, MJ
LeBohec, S
Maier, G
McArthur, S
McCann, A
McCutcheon, M
Millis, J
Moriarty, P
Nagai, T
Ong, RA
Otte, AN
Pandel, D
Perkins, JS
Pichel, A
Pohl, M
Quinn, J
Ragan, K
Reyes, LC
Reynolds, PT
Roache, E
Rose, HJ
Schroedter, M
Sembroski, GH
Senturk, GD
Smith, AW
Steele, D
Swordy, SP
Theiling, M
Thibadeau, S
Varlotta, A
Vassiliev, VV
Vincent, S
Wagner, RG
Wakely, SP
Ward, JE
Weekes, TC
Weinstein, A
Weisgarber, T
Williams, DA
Wissel, S
Wood, M
Zitzer, B
Abdo, AA
Ackermann, M
Ajello, M
Baldini, L
Ballet, J
Barbiellini, G
Bastieri, D
Baughman, BM
Bechtol, K
Bellazzini, R
Berenji, B
Blandford, RD
Bloom, ED
Bonamente, E
Borgland, AW
Bregeon, J
Brez, A
Brigida, M
Bruel, P
Burnett, TH
Caliandro, GA
Cameron, RA
Caraveo, PA
Casandjian, JM
Cavazzuti, E
Cecchi, C
Celik, O
Chekhtman, A
Cheung, CC
Chiang, J
Ciprini, S
Claus, R
Cohen-Tanugi, J
Conrad, J
Cutini, S
Dermer, CD
de Angelis, A
de Palma, F
Silva, EDE
Drell, PS
Drlica-Wagner, A
Dubois, R
Dumora, D
Farnier, C
Favuzzi, C
Fegan, SJ
Focke, WB
Fortin, P
Frailis, M
Fukazawa, Y
Fusco, P
Gargano, F
Gasparrini, D
Gehrels, N
Germani, S
Giebels, B
Giglietto, N
Giommi, P
Giordano, F
Glanzman, T
Godfrey, G
Grenier, IA
Grove, JE
Guillemot, L
Guiriec, S
Hanabata, Y
Hays, E
Hughes, RE
Jackson, MS
Johannesson, G
Johnson, AS
Johnson, WN
Kamae, T
Katagiri, H
Kataoka, J
Kawai, N
Kerr, M
Knodlseder, J
Kocian, ML
Kuss, M
Lande, J
Latronico, L
Longo, F
Loparco, F
Lott, B
Lovellette, MN
Lubrano, P
Madejski, GM
Makeev, A
Mazziotta, MN
McEnery, JE
Meurer, C
Michelson, PF
Mitthumsiri, W
Mizuno, T
Moiseev, AA
Monte, C
Monzani, ME
Morselli, A
Moskalenko, IV
Murgia, S
Nolan, PL
Norris, JP
Nuss, E
Ohsugi, T
Omodei, N
Orlando, E
Ormes, JF
Paneque, D
Parent, D
Pelassa, V
Pepe, M
Pesce-Rollins, M
Piron, F
Porter, TA
Raino, S
Rando, R
Razzano, M
Reimer, A
Reimer, O
Reposeur, T
Rodriguez, AY
Roth, M
Ryde, F
Sadrozinski, HFW
Sanchez, D
Sander, A
Parkinson, PMS
Scargle, JD
Sgro, C
Shaw, MS
Siskind, EJ
Smith, PD
Spandre, G
Spinelli, P
Strickman, MS
Suson, DJ
Tajima, H
Takahashi, H
Tanaka, T
Thayer, JB
Thayer, JG
Thompson, DJ
Tibaldo, L
Torres, DF
Tosti, G
Tramacere, A
Uchiyama, Y
Usher, TL
Vasileiou, V
Vilchez, N
Vitale, V
Waite, AP
Wang, P
Winer, BL
Wood, KS
Ylinen, T
Ziegler, M
Barber, SD
Terndrup, DM
AF Acciari, V. A.
Aliu, E.
Arlen, T.
Aune, T.
Bautista, M.
Beilicke, M.
Benbow, W.
Boettcher, M.
Boltuch, D.
Bradbury, S. M.
Buckley, J. H.
Bugaev, V.
Byrum, K.
Cannon, A.
Cesarini, A.
Chow, Y. C.
Ciupik, L.
Cogan, P.
Cui, W.
Duke, C.
Falcone, A.
Finley, J. P.
Finnegan, G.
Fortson, L.
Furniss, A.
Galante, N.
Gall, D.
Gillanders, G. H.
Godambe, S.
Grube, J.
Guenette, R.
Gyuk, G.
Hanna, D.
Holder, J.
Hui, C. M.
Humensky, T. B.
Kaaret, P.
Karlsson, N.
Kertzman, M.
Kieda, D.
Konopelko, A.
Krawczynski, H.
Krennrich, F.
Lang, M. J.
LeBohec, S.
Maier, G.
McArthur, S.
McCann, A.
McCutcheon, M.
Millis, J.
Moriarty, P.
Nagai, T.
Ong, R. A.
Otte, A. N.
Pandel, D.
Perkins, J. S.
Pichel, A.
Pohl, M.
Quinn, J.
Ragan, K.
Reyes, L. C.
Reynolds, P. T.
Roache, E.
Rose, H. J.
Schroedter, M.
Sembroski, G. H.
Senturk, G. Demet
Smith, A. W.
Steele, D.
Swordy, S. P.
Theiling, M.
Thibadeau, S.
Varlotta, A.
Vassiliev, V. V.
Vincent, S.
Wagner, R. G.
Wakely, S. P.
Ward, J. E.
Weekes, T. C.
Weinstein, A.
Weisgarber, T.
Williams, D. A.
Wissel, S.
Wood, M.
Zitzer, B.
Abdo, A. A.
Ackermann, M.
Ajello, M.
Baldini, L.
Ballet, J.
Barbiellini, G.
Bastieri, D.
Baughman, B. M.
Bechtol, K.
Bellazzini, R.
Berenji, B.
Blandford, R. D.
Bloom, E. D.
Bonamente, E.
Borgland, A. W.
Bregeon, J.
Brez, A.
Brigida, M.
Bruel, P.
Burnett, T. H.
Caliandro, G. A.
Cameron, R. A.
Caraveo, P. A.
Casandjian, J. M.
Cavazzuti, E.
Cecchi, C.
Celik, Oe
Chekhtman, A.
Cheung, C. C.
Chiang, J.
Ciprini, S.
Claus, R.
Cohen-Tanugi, J.
Conrad, J.
Cutini, S.
Dermer, C. D.
de Angelis, A.
de Palma, F.
do Couto e Silva, E.
Drell, P. S.
Drlica-Wagner, A.
Dubois, R.
Dumora, D.
Farnier, C.
Favuzzi, C.
Fegan, S. J.
Focke, W. B.
Fortin, P.
Frailis, M.
Fukazawa, Y.
Fusco, P.
Gargano, F.
Gasparrini, D.
Gehrels, N.
Germani, S.
Giebels, B.
Giglietto, N.
Giommi, P.
Giordano, F.
Glanzman, T.
Godfrey, G.
Grenier, I. A.
Grove, J. E.
Guillemot, L.
Guiriec, S.
Hanabata, Y.
Hays, E.
Hughes, R. E.
Jackson, M. S.
Johannesson, G.
Johnson, A. S.
Johnson, W. N.
Kamae, T.
Katagiri, H.
Kataoka, J.
Kawai, N.
Kerr, M.
Knoedlseder, J.
Kocian, M. L.
Kuss, M.
Lande, J.
Latronico, L.
Longo, F.
Loparco, F.
Lott, B.
Lovellette, M. N.
Lubrano, P.
Madejski, G. M.
Makeev, A.
Mazziotta, M. N.
McEnery, J. E.
Meurer, C.
Michelson, P. F.
Mitthumsiri, W.
Mizuno, T.
Moiseev, A. A.
Monte, C.
Monzani, M. E.
Morselli, A.
Moskalenko, I. V.
Murgia, S.
Nolan, P. L.
Norris, J. P.
Nuss, E.
Ohsugi, T.
Omodei, N.
Orlando, E.
Ormes, J. F.
Paneque, D.
Parent, D.
Pelassa, V.
Pepe, M.
Pesce-Rollins, M.
Piron, F.
Porter, T. A.
Raino, S.
Rando, R.
Razzano, M.
Reimer, A.
Reimer, O.
Reposeur, T.
Rodriguez, A. Y.
Roth, M.
Ryde, F.
Sadrozinski, H. F. -W.
Sanchez, D.
Sander, A.
Parkinson, P. M. Saz
Scargle, J. D.
Sgro, C.
Shaw, M. S.
Siskind, E. J.
Smith, P. D.
Spandre, G.
Spinelli, P.
Strickman, M. S.
Suson, D. J.
Tajima, H.
Takahashi, H.
Tanaka, T.
Thayer, J. B.
Thayer, J. G.
Thompson, D. J.
Tibaldo, L.
Torres, D. F.
Tosti, G.
Tramacere, A.
Uchiyama, Y.
Usher, T. L.
Vasileiou, V.
Vilchez, N.
Vitale, V.
Waite, A. P.
Wang, P.
Winer, B. L.
Wood, K. S.
Ylinen, T.
Ziegler, M.
Barber, S. D.
Terndrup, D. M.
CA VERITAS Collaboration
Fermi LAT Collaboration
TI DISCOVERY OF VERY HIGH ENERGY GAMMA RAYS FROM PKS 1424+240 AND
MULTIWAVELENGTH CONSTRAINTS ON ITS REDSHIFT
SO ASTROPHYSICAL JOURNAL LETTERS
LA English
DT Article
DE BL Lacertae objects: individual (PKS 1424+240=VER J1427+237), gamma
rays: observations
ID BL-LACERTAE OBJECTS; LARGE-AREA TELESCOPE; BACKGROUND-RADIATION; SOURCE
LIST; VERITAS; ASTRONOMY; EMISSION; SPECTRA; BLAZARS; MISSION
AB We report the first detection of very high energy(83) (VHE) gamma-ray emission above 140 GeV from PKS 1424+240, a BL Lac object with an unknown redshift. The photon spectrum above 140 GeV measured by VERITAS is well described by a power law with a photon index of 3.8 +/- 0.5(stat) +/- 0.3(syst) and a flux normalization at 200 GeV of (5.1 +/- 0.9(stat) +/- 0.5(syst)) x 10(-11) TeV-1 cm(-2) s(-1), where stat and syst denote the statistical and systematical uncertainties, respectively. The VHE flux is steady over the observation period between MJD 54881 and 55003 (from 2009 February 19 to June 21). Flux variability is also not observed in contemporaneous high-energy observations with the Fermi Large Area Telescope. Contemporaneous X-ray and optical data were also obtained from the Swift XRT and MDM observatory, respectively. The broadband spectral energy distribution is well described by a one-zone synchrotron self-Compton model favoring a redshift of less than 0.1. Using the photon index measured with Fermi in combination with recent extragalactic background light absorption models it can be concluded from the VERITAS data that the redshift of PKS 1424+240 is less than 0.66.
C1 [Aune, T.; Furniss, A.; Otte, A. N.; Williams, D. A.; Porter, T. A.; Sadrozinski, H. F. -W.; Parkinson, P. M. Saz; Ziegler, M.] Univ Calif Santa Cruz, Santa Cruz Inst Particle Phys, Dept Phys, Santa Cruz, CA 95064 USA.
[Aliu, E.; Boltuch, D.; Holder, J.] Univ Delaware, Dept Phys & Astron, Newark, DE 19716 USA.
[Aliu, E.; Boltuch, D.; Holder, J.] Univ Delaware, Bartol Res Inst, Newark, DE 19716 USA.
[Arlen, T.; Chow, Y. C.; Ong, R. A.; Vassiliev, V. V.; Weinstein, A.; Wood, M.] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA.
[Bautista, M.; Cogan, P.; Guenette, R.; Hanna, D.; Maier, G.; McCann, A.; McCutcheon, M.; Ragan, K.] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada.
[Beilicke, M.; Buckley, J. H.; Bugaev, V.; Krawczynski, H.; McArthur, S.; Thibadeau, S.] Washington Univ, Dept Phys, St Louis, MO 63130 USA.
[Boettcher, M.] Ohio Univ, Inst Astrophys, Dept Phys & Astron, Athens, OH 45701 USA.
[Bradbury, S. M.; Rose, H. J.] Univ Leeds, Sch Phys & Astron, Leeds LS2 9JT, W Yorkshire, England.
[Byrum, K.; Smith, A. W.; Wagner, R. G.] Argonne Natl Lab, Argonne, IL 60439 USA.
[Cannon, A.; Grube, J.; Quinn, J.; Ward, J. E.] Univ Coll Dublin, Sch Phys, Dublin 4, Ireland.
[Cesarini, A.; Gillanders, G. H.; Lang, M. J.] Natl Univ Ireland, Sch Phys, Galway, Ireland.
[Ciupik, L.; Fortson, L.; Gyuk, G.; Karlsson, N.; Steele, D.] Adler Planetarium & Astron Museum, Dept Astron, Chicago, IL 60605 USA.
[Cui, W.; Finley, J. P.; Gall, D.; Millis, J.; Sembroski, G. H.; Varlotta, A.; Zitzer, B.] Purdue Univ, Dept Phys, W Lafayette, IN 47907 USA.
[Duke, C.] Grinnell Coll, Dept Phys, Grinnell, IA 50112 USA.
[Falcone, A.] Penn State Univ, Dept Astron & Astrophys, Davey Lab 525, University Pk, PA 16802 USA.
[Finnegan, G.; Godambe, S.; Hui, C. M.; Kieda, D.; LeBohec, S.; Vincent, S.] Univ Utah, Dept Phys & Astron, Salt Lake City, UT 84112 USA.
[Humensky, T. B.; Swordy, S. P.; Wakely, S. P.; Weisgarber, T.; Wissel, S.] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA.
[Kaaret, P.; Pandel, D.] Univ Iowa, Dept Phys & Astron, Iowa City, IA 52242 USA.
[Kertzman, M.] Depauw Univ, Dept Phys & Astron, Greencastle, IN 46135 USA.
[Konopelko, A.] Pittsburg State Univ, Dept Phys, Pittsburg, KS 66762 USA.
[Krennrich, F.; Nagai, T.; Pohl, M.; Schroedter, M.] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA.
[Moriarty, P.] Galway Mayo Inst Technol, Dept Life & Phys Sci, Galway, Ireland.
[Pichel, A.] Inst Astron & Fis Espacio, RA-1428 Buenos Aires, DF, Argentina.
[Reyes, L. C.] Univ Chicago, Kavli Inst Cosmol Phys, Chicago, IL 60637 USA.
[Reynolds, P. T.] Cork Inst Technol, Dept Appl Phys & Instrumentat, Cork, Ireland.
[Senturk, G. Demet] Columbia Univ, Columbia Astrophys Lab, New York, NY 10027 USA.
[Abdo, A. A.; Chekhtman, A.; Dermer, C. D.; Grove, J. E.; Johnson, W. N.; Lovellette, M. N.; Makeev, A.; Strickman, M. S.; Wood, K. S.] USN, Div Space Sci, Res Lab, Washington, DC 20375 USA.
[Abdo, A. A.] Natl Acad Sci, Natl Res Council Res Associate, Washington, DC 20001 USA.
[Ackermann, M.; Ajello, M.; Bechtol, K.; Berenji, B.; Blandford, R. D.; Bloom, E. D.; Borgland, A. W.; Cameron, R. A.; Chiang, J.; Claus, R.; do Couto e Silva, E.; Drell, P. S.; Drlica-Wagner, A.; Dubois, R.; Focke, W. B.; Glanzman, T.; Godfrey, G.; Johannesson, G.; Johnson, A. S.; Kamae, T.; Kocian, M. L.; Lande, J.; Madejski, G. M.; Michelson, P. F.; Mitthumsiri, W.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Nolan, P. L.; Paneque, D.; Reimer, A.; Reimer, O.; Shaw, M. S.; Tajima, H.; Tanaka, T.; Thayer, J. B.; Thayer, J. G.; Tramacere, A.; Uchiyama, Y.; Usher, T. L.; Waite, A. P.; Wang, P.] Stanford Univ, WW Hansen Expt Phys Lab, Kavli Inst Particle Astrophys & Cosmol, Dept Phys, Stanford, CA 94305 USA.
[Ackermann, M.; Ajello, M.; Bechtol, K.; Berenji, B.; Blandford, R. D.; Bloom, E. D.; Borgland, A. W.; Cameron, R. A.; Chiang, J.; Claus, R.; do Couto e Silva, E.; Drell, P. S.; Drlica-Wagner, A.; Dubois, R.; Focke, W. B.; Glanzman, T.; Godfrey, G.; Johannesson, G.; Johnson, A. S.; Kamae, T.; Kocian, M. L.; Lande, J.; Madejski, G. M.; Michelson, P. F.; Mitthumsiri, W.; Monzani, M. E.; Moskalenko, I. V.; Murgia, S.; Nolan, P. L.; Paneque, D.; Reimer, A.; Reimer, O.; Shaw, M. S.; Tajima, H.; Tanaka, T.; Thayer, J. B.; Thayer, J. G.; Tramacere, A.; Uchiyama, Y.; Usher, T. L.; Waite, A. P.; Wang, P.] Stanford Univ, SLAC Natl Accelerator Lab, Stanford, CA 94305 USA.
[Baldini, L.; Bellazzini, R.; Bregeon, J.; Brez, A.; Kuss, M.; Latronico, L.; Omodei, N.; Pesce-Rollins, M.; Razzano, M.; Sgro, C.; Spandre, G.] Ist Nazl Fis Nucl, Sez Pisa, I-56127 Pisa, Italy.
[Ballet, J.; Casandjian, J. M.; Grenier, I. A.; Tibaldo, L.] Univ Paris Diderot, Lab AIM, CEA Saclay, Serv Astrophys,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.; Rando, R.; Tibaldo, L.] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy.
[Bastieri, D.; Rando, R.; Tibaldo, L.] Univ Padua, Dipartimento Fis G Galilei, I-35131 Padua, Italy.
[Baughman, B. M.; Hughes, R. E.; Sander, A.; Smith, P. D.; Winer, B. L.] Ohio State Univ, Dept Phys, Ctr Cosmol & Astroparticle Phys, Columbus, OH 43210 USA.
[Bonamente, E.; Cecchi, C.; Ciprini, S.; Germani, S.; Lubrano, P.; Pepe, M.; Tosti, G.] Ist Nazl Fis Nucl, Sez Perugia, I-06123 Perugia, Italy.
[Bonamente, E.; Cecchi, C.; Ciprini, S.; Germani, S.; Lubrano, P.; Pepe, M.; Tosti, G.] Univ Perugia, Dipartimento Fis, I-06123 Perugia, Italy.
[Brigida, M.; Caliandro, G. A.; de Palma, F.; Favuzzi, C.; Fusco, P.; Giglietto, N.; Giordano, F.; Loparco, F.; Monte, C.; Raino, S.; Spinelli, P.] Univ Politecn Bari, Dipartimento Fis M Merlin, I-70126 Bari, Italy.
[Brigida, M.; Caliandro, G. A.; de Palma, F.; Favuzzi, C.; Fusco, P.; Gargano, F.; Giglietto, N.; Giordano, F.; Loparco, F.; Mazziotta, M. N.; Monte, C.; Raino, S.; Spinelli, P.] Ist Nazl Fis Nucl, Sez Bari, I-70126 Bari, Italy.
[Bruel, P.; Fegan, S. J.; Fortin, P.; Giebels, B.; Sanchez, D.] Ecole Polytech, CNRS, Lab Leprince Ringuet, IN2P3, F-91128 Palaiseau, France.
[Burnett, T. H.; Kerr, M.; Roth, M.] Univ Washington, Dept Phys, Seattle, WA 98195 USA.
[Caraveo, P. A.] INAF Ist Astrofis Spaziale & Fis Cosm, I-20133 Milan, Italy.
[Cavazzuti, E.; Cutini, S.; Gasparrini, D.; Giommi, P.] ASI, Sci Data Ctr, I-00044 Rome, Italy.
[Celik, Oe; Moiseev, A. A.; Vasileiou, V.] NASA, Goddard Space Flight Ctr, CRESST, Greenbelt, MD 20771 USA.
[Celik, Oe; Vasileiou, V.] Univ Maryland Baltimore Cty, Baltimore, MD 21250 USA.
[Chekhtman, A.; Makeev, A.] George Mason Univ, Fairfax, VA 22030 USA.
[Cohen-Tanugi, J.; Farnier, C.; Nuss, E.; Pelassa, V.; Piron, F.] Univ Montpellier 2, Lab Phys Theor & Astroparticules, CNRS, IN2P3, Montpellier, France.
[Conrad, J.; Jackson, M. S.; Meurer, C.] Stockholm Univ, Dept Phys, AlbaNova, SE-10691 Stockholm, Sweden.
[Conrad, J.; Jackson, M. S.; Meurer, C.; Ryde, F.; Ylinen, T.] AlbaNova, Oskar Klein Ctr Cosmoparticle Phys, SE-10691 Stockholm, Sweden.
[de Angelis, A.; Frailis, M.] Univ Udine, Dipartimento Fis, I-33100 Udine, Italy.
[de Angelis, A.; Frailis, M.] Ist Nazl Fis Nucl, Sez Trieste, Grp Collegato Udine, I-33100 Udine, Italy.
[Dumora, D.; Guillemot, L.; Lott, B.; Parent, D.; Reposeur, T.] Univ Bordeaux, Ctr Etud Nucl Bordeaux Gradignan, UMR 5797, F-33175 Gradignan, France.
[Dumora, D.; Guillemot, L.; Lott, B.; Parent, D.; Reposeur, T.] CNRS, Ctr Etud Nucl Bordeaux Gradignan, IN2P3, UMR 5797, F-33175 Gradignan, France.
[Fukazawa, Y.; Hanabata, Y.; Katagiri, H.; Mizuno, T.; Ohsugi, T.; Takahashi, H.] Hiroshima Univ, Dept Phys Sci, Hiroshima 7398526, Japan.
[Gehrels, N.; Moiseev, A. A.] Univ Maryland, College Pk, MD 20742 USA.
[Guiriec, S.] Univ Alabama, Huntsville, AL 35899 USA.
[Jackson, M. S.; Ryde, F.; Ylinen, T.] AlbaNova, Royal Inst Technol KTH, Dept Phys, SE-10691 Stockholm, Sweden.
[Kataoka, J.; Kawai, N.] Tokyo Inst Technol, Dept Phys, Meguro, Tokyo 1528551, Japan.
[Kataoka, J.] Waseda Univ, Shinjuku Ku, Tokyo 1698050, Japan.
[Kawai, N.] Inst Phys & Chem Res RIKEN, Cosm Radiat Lab, Wako, Saitama 3510198, Japan.
[Knoedlseder, J.; Vilchez, N.] CNRS UPS, Ctr Etud Spatiale Rayonnements, F-31028 Toulouse 4, France.
[Morselli, A.; Vitale, V.] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, I-00133 Rome, Italy.
[Norris, J. P.; Ormes, J. F.] Univ Denver, Dept Phys & Astron, Denver, CO 80208 USA.
[Orlando, E.] Max Planck Inst Extraterr Phys, D-85748 Garching, Germany.
[Porter, T. A.; Sadrozinski, H. F. -W.; Parkinson, P. M. Saz; Ziegler, M.] Univ Calif Santa Cruz, Dept Astron & Astrophys, Santa Cruz, CA 95064 USA.
[Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Astro & Teilchenphys, A-6020 Innsbruck, Austria.
[Reimer, A.; Reimer, O.] Leopold Franzens Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria.
[Rodriguez, A. Y.; Torres, D. F.] Inst Ciencies Espai IEEC CSIC, Barcelona 08193, Spain.
[Scargle, J. D.] NASA, Div Space Sci, Ames Res Ctr, Moffett Field, CA 94035 USA.
[Siskind, E. J.] NYCB Real Time Comp Inc, Lattingtown, NY 11560 USA.
[Suson, D. J.] Purdue Univ Calumet, Dept Chem & Phys, Hammond, IN 46323 USA.
[Torres, D. F.] Inst Catalana Recerca & Estudis Avancats, Barcelona, Spain.
[Tramacere, A.] CIFS, I-10133 Turin, Italy.
[Uchiyama, Y.] JAXA, Inst Space & Astronaut Sci, Sagamihara, Kanagawa 2298510, Japan.
[Vitale, V.] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy.
[Ylinen, T.] Univ Kalmar, Sch Pure & Appl Nat Sci, SE-39182 Kalmar, Sweden.
[Barber, S. D.] Univ Oklahoma, Homer L Dodge Dept Phys & Astron, Norman, OK 73019 USA.
[Terndrup, D. M.] Ohio State Univ, Dept Astron, Columbus, OH 43210 USA.
[Terndrup, D. M.] Natl Sci Fdn, Arlington, VA 22230 USA.
[Acciari, V. A.; Benbow, W.; Galante, N.; Perkins, J. S.; Roache, E.; Theiling, M.; Weekes, T. C.] Harvard Smithsonian Ctr Astrophys, Fred Lawrence Whipple Observ, Amado, AZ 85645 USA.
RP Furniss, A (reprint author), Univ Calif Santa Cruz, Santa Cruz Inst Particle Phys, Dept Phys, Santa Cruz, CA 95064 USA.
EM nepomuk.otte@gmail.com; amy.furniss@gmail.com; jchiang@slac.stanford.edu
RI Johannesson, Gudlaugur/O-8741-2015; Gargano, Fabio/O-8934-2015; Loparco,
Francesco/O-8847-2015; Moskalenko, Igor/A-1301-2007; Mazziotta, Mario
/O-8867-2015; Sgro, Carmelo/K-3395-2016; Torres, Diego/O-9422-2016;
McEnery, Julie/D-6612-2012; Baldini, Luca/E-5396-2012; lubrano,
pasquale/F-7269-2012; Morselli, Aldo/G-6769-2011; Nolan,
Patrick/A-5582-2009; Kuss, Michael/H-8959-2012; giglietto,
nicola/I-8951-2012; Tosti, Gino/E-9976-2013; Rando,
Riccardo/M-7179-2013; Hays, Elizabeth/D-3257-2012; Johnson,
Neil/G-3309-2014; Thompson, David/D-2939-2012; Gehrels,
Neil/D-2971-2012; Reimer, Olaf/A-3117-2013
OI Sgro', Carmelo/0000-0001-5676-6214; SPINELLI, Paolo/0000-0001-6688-8864;
Rando, Riccardo/0000-0001-6992-818X; Ward, John E/0000-0003-1973-0794;
Bastieri, Denis/0000-0002-6954-8862; Omodei, Nicola/0000-0002-5448-7577;
Pesce-Rollins, Melissa/0000-0003-1790-8018; Pandel,
Dirk/0000-0003-2085-5586; Lang, Mark/0000-0003-4641-4201; Cutini,
Sara/0000-0002-1271-2924; Johannesson, Gudlaugur/0000-0003-1458-7036;
Gargano, Fabio/0000-0002-5055-6395; Loparco,
Francesco/0000-0002-1173-5673; Moskalenko, Igor/0000-0001-6141-458X;
Mazziotta, Mario /0000-0001-9325-4672; Torres,
Diego/0000-0002-1522-9065; giommi, paolo/0000-0002-2265-5003; De
Angelis, Alessandro/0000-0002-3288-2517; Cui, Wei/0000-0002-6324-5772;
Frailis, Marco/0000-0002-7400-2135; Cesarini,
Andrea/0000-0002-8611-8610; Caraveo, Patrizia/0000-0003-2478-8018;
Gasparrini, Dario/0000-0002-5064-9495; Tramacere,
Andrea/0000-0002-8186-3793; Baldini, Luca/0000-0002-9785-7726; lubrano,
pasquale/0000-0003-0221-4806; Morselli, Aldo/0000-0002-7704-9553;
giglietto, nicola/0000-0002-9021-2888; Thompson,
David/0000-0001-5217-9135; Reimer, Olaf/0000-0001-6953-1385
FU K. A. Wallenberg Foundation
FX Royal Swedish Academy of Sciences Research Fellow, funded by a grant
from the K. A. Wallenberg Foundation.
NR 37
TC 44
Z9 44
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 JAN 10
PY 2010
VL 708
IS 2
BP L100
EP L106
DI 10.1088/2041-8205/708/2/L100
PG 7
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 540CJ
UT WOS:000273308000007
ER
PT J
AU Wood, BE
Howard, RA
Thernisien, A
Socker, DG
AF Wood, B. E.
Howard, R. A.
Thernisien, A.
Socker, D. G.
TI THE THREE-DIMENSIONAL MORPHOLOGY OF A COROTATING INTERACTION REGION IN
THE INNER HELIOSPHERE
SO ASTROPHYSICAL JOURNAL LETTERS
LA English
DT Article
DE interplanetary medium; solar wind
ID SOLAR-WIND; HYDRODYNAMICAL SIMULATIONS; ABSORPTION COMPONENTS; STREAMS;
SECCHI; EARTH; SUN
AB In its three years of operation, the HI2 imagers on the two Solar TErrestrial RElations Observatory (STEREO) spacecraft have imaged many corotating interaction regions (CIRs) in the interplanetary medium, allowing the study of their three-dimensional (3D) morphology. Using an entirely empirical analysis technique, we construct a 3D model of one CIR, which is able to reproduce the general appearance and evolution of the CIR in HI2 images. The model CIR is also consistent with in situ data. Its curvature is compatible with the observed speed of the slow wind that is acting as the barrier for the fast wind piling up against it, and the width of the model CIR is consistent with the duration of the observed density pulse. Perpendicular to the equatorial plane, the model CIR has a parabolic shape that maps beautifully back to a bifurcated streamer observed at the Sun, which surrounds a coronal hole. This implies that this particular CIR is due to fast wind emanating from low latitudes that is impinging against slow wind in overlying streamers.
C1 [Wood, B. E.; Howard, R. A.; Thernisien, A.; Socker, D. G.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
RP Wood, BE (reprint author), USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
EM brian.wood@nrl.navy.mil; russ.howard@nrl.navy.mil;
arnaud.thernisien.ctr.fr@nrl.navy.mil; dennis.socker@nrl.navy.mil
FU NASA [NAS5-00132, NAS5-00133]; USAF; ONR
FX The STEREO/SECCHI data are produced by a consortium of NRL (US), LMSAL
(US), NASA/GSFC (US), RAL (UK), UBHAM (UK), MPS (Germany), CSL
(Belgium), IOTA (France), and IAS (France). In addition to funding by
NASA, NRL also received support from the USAF Space Test Program and
ONR. In addition to SECCHI, this work has made use of data provided by
the STEREO PLASTIC and IMPACT teams, supported by NASA contracts
NAS5-00132 and NAS5-00133. We have also made use of data provided by the
CELIAS/MTOF experiment on SOHO, which is a joint ESA and NASA mission.
We thank the ACE SWEPAM and MAG instrument teams and the ACE Science
Center for providing the ACE data.
NR 35
TC 10
Z9 10
U1 0
U2 1
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
J9 ASTROPHYS J LETT
JI Astrophys. J. Lett.
PD JAN 10
PY 2010
VL 708
IS 2
BP L89
EP L94
DI 10.1088/2041-8205/708/2/L89
PG 6
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 540CJ
UT WOS:000273308000005
ER
PT J
AU Ahlers, G
Dressel, B
Oh, J
Pesch, W
AF Ahlers, Guenter
Dressel, Bernd
Oh, Jaechul
Pesch, Werner
TI Strong non-Boussinesq effects near the onset of convection in a fluid
near its critical point
SO JOURNAL OF FLUID MECHANICS
LA English
DT Article
DE Benard; instability
ID RAYLEIGH-BENARD CONVECTION; LIQUID CRITICAL-POINT; THERMAL-CONVECTION;
SULFUR-HEXAFLUORIDE; PATTERNS; HEXAGONS; SYSTEMS; APPROXIMATION;
CONDUCTIVITY; FLUCTUATIONS
AB Measurements of fluctuations and convection patterns in horizontal layers or fluid heated from below and near the onset of Rayleigh-Benard convection (RBC) are reported under conditions where the fluid properties vary strongly over the temperature range Delta T = T(b) - T(t) (T(b) and T(t) are the temperatures at the bottom and top of the sample, respectively). To facilitate a comparison with the data, the theory of Busse (J. Fluid Mech., vol. 30, 1967, p. 625) of these so called non-Oberbeck-Boussinesq (NOB) effects, which applies to the case of relatively weak (and linear) temperature dependences, was extended to arbitrary variations with temperature. It is conceptually useful to divide the variations with temperature of the fluid properties into two disjunct parts. One part is chosen so that it preserves the reflection symmetry of the system about the horizontal midplane, while the remainder breaks that symmetry. The latter, exclusively considered by Busse, leads (in contrast to the formation of the typical convection rolls in RBC) to hexagons immediately above the transition to convection at the critical temperature difference Delta T(c). The symmetric part, on the other hand, does not prevent the bifurcation to rolls, but may become very important for the determination of Delta T(c). In the experiment the fluid was sulfur hexafluoride at temperatures above but close to the gas-liquid critical point, where all fluid properties vary strongly with temperature. All measurements were done along isobars by varying Delta T. Patterns were observed above onset (Delta T greater than or similar to Delta T(c)), while for the conduction state at Delta T < Delta T(c) there were only fluctuations induced by Brownian motion. When the mean temperature T(m) (T(b) + T(t))/2 was such that the density rho at T(m) was equal to the critical density rho*, the mirror symmetry about the horizontal midplane of the sample was essentially preserved. In that case, as expected, we found a direct transition to rolls and the critical temperature difference Delta T(c) was considerably shifted compared to the critical value Delta T(c,OB) in the absence of NOB effects. When, on the other hand, T(m) was not located on the critical isochore, the NOB effects broke the reflection symmetry and led to a hysteretic transition from fluctuations to hexagonal patterns. In this latter case the hexagonal pattern, the observed hysteresis at onset and the transition from hexagons to rolls at larger Delta T were consistent with the 'classical' predictions by Busse.
C1 [Ahlers, Guenter] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA.
[Dressel, Bernd; Pesch, Werner] Univ Bayreuth, Inst Phys, D-95440 Bayreuth, Germany.
[Oh, Jaechul] USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
RP Ahlers, G (reprint author), Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA.
EM guenter@physics.ucsb.edu
FU US National Science Foundation [DMR07-02111]; Alexander von Humboldt
Foundation
FX The experimental work was supported by the US National Science
Foundation through Grant DMR07-02111. One of the authors (W. Pesch) is
very grateful to Professor Busse for many fruitful discussions about NOB
convection. G. Ahlers acknowledges also the support of the Alexander von
Humboldt Foundation, as well as the kind hospitality of the physical
institute of the University of Bayreuth and the Max Planck Institute for
Dynamics and Self-organization, Gottingen, where part of this work was
performed.
NR 49
TC 5
Z9 5
U1 0
U2 7
PU CAMBRIDGE UNIV PRESS
PI NEW YORK
PA 32 AVENUE OF THE AMERICAS, NEW YORK, NY 10013-2473 USA
SN 0022-1120
J9 J FLUID MECH
JI J. Fluid Mech.
PD JAN 10
PY 2010
VL 642
BP 15
EP 48
DI 10.1017/S0022112009991686
PG 34
WC Mechanics; Physics, Fluids & Plasmas
SC Mechanics; Physics
GA 555EJ
UT WOS:000274490500003
ER
PT J
AU Michalak, L
Canali, CM
Pederson, MR
Paulsson, M
Benza, VG
AF Michalak, L.
Canali, C. M.
Pederson, M. R.
Paulsson, M.
Benza, V. G.
TI Theory of Tunneling Spectroscopy in a Mn-12 Single-Electron Transistor
by Density-Functional Theory Methods
SO PHYSICAL REVIEW LETTERS
LA English
DT Article
ID MOLECULE MAGNETS; MAGNETIZATION
AB We consider tunneling transport through a Mn-12 molecular magnet using spin density functional theory. A tractable methodology for constructing many-body wave functions from Kohn-Sham orbitals allows for the determination of spin-dependent matrix elements for use in transport calculations. The tunneling conductance at finite bias is characterized by peaks representing transitions between spin multiplets, separated by an energy on the order of the magnetic anisotropy. The energy splitting of the spin multiplets and the spatial part of their many-body wave functions, describing the orbital degrees of freedom of the excess charge, strongly affect the electronic transport, and can lead to negative differential conductance.
C1 [Michalak, L.; Canali, C. M.; Paulsson, M.] Kalmar Univ, Dept Nat Sci, Div Phys, S-39182 Kalmar, Sweden.
[Pederson, M. R.] USN, Res Lab, Ctr Computat Mat Sci, Washington, DC 20375 USA.
[Benza, V. G.] Univ Insubria, Dipartimento Matemat & Fis, I-20064 Como, Italy.
RP Michalak, L (reprint author), Kalmar Univ, Dept Nat Sci, Div Phys, S-39182 Kalmar, Sweden.
RI Paulsson, Magnus/A-6579-2011; Paulsson, Magnus/A-8474-2008
OI Paulsson, Magnus/0000-0001-8266-6911;
FU Faculty of Natural Sciences at Kalmar University; Swedish Research
Council [621-2007-5019]
FX This work was supported by the Faculty of Natural Sciences at Kalmar
University and the Swedish Research Council under Grant No.
621-2007-5019. M. R. P. thanks the DOD HPCMO for computational
resources.
NR 24
TC 15
Z9 15
U1 0
U2 13
PU AMER PHYSICAL SOC
PI COLLEGE PK
PA ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
SN 0031-9007
J9 PHYS REV LETT
JI Phys. Rev. Lett.
PD JAN 8
PY 2010
VL 104
IS 1
AR 017202
DI 10.1103/PhysRevLett.104.017202
PG 4
WC Physics, Multidisciplinary
SC Physics
GA 547IX
UT WOS:000273881900037
PM 20366388
ER
PT J
AU Hooper, J
AF Hooper, Joe
TI Vibrational energy transfer in shocked molecular crystals
SO JOURNAL OF CHEMICAL PHYSICS
LA English
DT Article
DE decomposition; dislocations; equations of state; molecular dynamics
method; phonon-phonon interactions; shock wave effects; vibrational
modes
ID HOT-SPOT FORMATION; DENSE MEDIUM; MULTIPHONON RELAXATION; TRANSFER
RATES; EXPLOSIVES; SOLIDS; METALS; DYNAMICS; NITROMETHANE; ABSORPTION
AB We consider the process of establishing thermal equilibrium behind an ideal shock front in molecular crystals and its possible role in initiating chemical reaction at high shock pressures. A new theory of equilibration via multiphonon energy transfer is developed to treat the scattering of shock-induced phonons into internal molecular vibrations. Simple analytic forms are derived for the change in this energy transfer at different Hugoniot end states following shock compression. The total time required for thermal equilibration is found to be an order of magnitude or faster than proposed in previous work; in materials representative of explosive molecular crystals, equilibration is predicted to occur within a few picoseconds following the passage of an ideal shock wave. Recent molecular dynamics calculations are consistent with these time scales. The possibility of defect-induced temperature localization due purely to nonequilibrium phonon processes is studied by means of a simple model of the strain field around an inhomogeneity. The specific case of immobile straight dislocations is studied, and a region of enhanced energy transfer on the order of 5 nm is found. Due to the rapid establishment of thermal equilibrium, these regions are unrelated to the shock sensitivity of a material but may allow temperature localization at high shock pressures. Results also suggest that if any decomposition due to molecular collisions is occurring within the shock front itself, these collisions are not enhanced by any nonequilibrium thermal state.
C1 USN, Res Dept, Ctr Surface Warfare, Indian Head, MD 20640 USA.
RP Hooper, J (reprint author), USN, Res Dept, Ctr Surface Warfare, Indian Head, MD 20640 USA.
EM joseph.p.hooper@navy.mil
FU Office of Naval Research
FX The author would like to acknowledge Jerry Forbes for many useful
discussions on shock and detonation physics, Frank Zerilli for
calculations on alpha-HMX and useful discussion, and Harold Sandusky for
insight into shock sensitivity. This work was supported by the Office of
Naval Research funded Indian Head Division In-House Laboratory
Independent Research program under the direction of Dr. Alfred G. Stern.
NR 61
TC 7
Z9 7
U1 2
U2 16
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 JAN 7
PY 2010
VL 132
IS 1
AR 014507
DI 10.1063/1.3273212
PG 14
WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical
SC Chemistry; Physics
GA 542DQ
UT WOS:000273472300031
PM 20078172
ER
PT J
AU Fragiadakis, D
Gamache, R
Bogoslovov, RB
Roland, CM
AF Fragiadakis, D.
Gamache, R.
Bogoslovov, R. B.
Roland, C. M.
TI Segmental dynamics of polyurea: Effect of stoichiometry
SO POLYMER
LA English
DT Article
DE Polyurea; Ballistic coatings; Segmental dynamics
ID HYDROSTATIC-PRESSURE; MECHANICAL-BEHAVIOR; ALPHA-RELAXATION; LIQUIDS;
DEFORMATION; POLYMERS; BLAST; TIME
AB We study the effect of variations in the soft/hard segment ratio, achieved through stoichiometry changes, in elastomeric polyurea. These variations have a marked effect on the mechanical properties; however, the materials exhibit very similar glass transitions and local segmental relaxation dynamics. The latter differ only at elevated pressure, an increase in hard segment content associated with greater sensitivity to pressure and volume changes. In this respect the polyurea mimics the behavior found recently for an elastomer reinforced with hard filler particles. The resistance to ballistic penetration of the polyurea was unaffected by the stoichiometry variations, consistent with the idea that the impact performance of elastomers is governed by the segmental dynamics rather than properties measured in conventional mechanical tests. Published by Elsevier Ltd.
C1 [Fragiadakis, D.; Bogoslovov, R. B.; Roland, C. M.] USN, Res Lab, Washington, DC 20375 USA.
[Gamache, R.] USN, Ctr Surface Warfare, Res & Technol Dept, Indian Head, MD 20640 USA.
RP Roland, CM (reprint author), USN, Res Lab, Code 6120, Washington, DC 20375 USA.
EM roland@nrl.navy.mil
RI Fragiadakis, Daniel/A-4510-2009; He, Yong/F-8752-2012
FU Office of Naval Research; National Research Council
FX This work was supported by the Office of Naval Research. DF thanks the
National Research Council for a post-doctoral fellowship. We thank
Riccardo Casalini for assistance with highpressure dielectric
measurements and useful discussions.
NR 30
TC 42
Z9 43
U1 2
U2 21
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 6
PY 2010
VL 51
IS 1
BP 178
EP 184
DI 10.1016/j.polymer.2009.11.028
PG 7
WC Polymer Science
SC Polymer Science
GA 541SE
UT WOS:000273439500022
ER
PT J
AU Rodgers, EM
Bailey, SM
Warren, HP
Woods, TN
Eparvier, FG
AF Rodgers, E. M.
Bailey, S. M.
Warren, H. P.
Woods, T. N.
Eparvier, F. G.
TI Nitric oxide density enhancements due to solar flares
SO ADVANCES IN SPACE RESEARCH
LA English
DT Article
DE Nitric oxide; Soft X-ray irradiance; Solar flare; Thermosphere
ID LOWER THERMOSPHERE; ATOMIC DATABASE; EMISSION-LINES; EUV IRRADIANCE;
X-RAYS; FORMULATION; SPECTRUM; CHIANTI; MODEL
AB A differential emission measure technique is used to determine flare spectra using solar observations from the soft X-ray instruments aboard the Thermosphere Ionosphere Mesosphere Energetics Dynamics and Solar Radiation and Climate Experiment satellites. We examine the effect of the solar flare soft X-ray energy input on the nitric oxide (NO) density in the lower thermosphere. The retrieved spectrum of the 28 October 2003 X18 flare is input to a photochemical thermospheric NO model to calculate the predicted flare NO enhancements. Model results are compared to Student Nitric Oxide Explorer Ultraviolet Spectrometer observations of this flare. We present results of this comparison and show that the model and data tire in agreement. In addition, the NO density enhancements due to several flares are studied. We present results that show large solar flares can deposit the same amount of 0.1-2 and 0.1-7 nm energy to the thermosphere during a relatively short time as the Sun normally deposits in one day. The NO column density nearly doubles when the daily integrated energy above 5 J m(-2) is doubled. (C) 2009 COSPAR. Published by Elsevier Ltd. All rights reserved.
C1 [Rodgers, E. M.] Univ Alaska, Inst Geophys, Fairbanks, AK 99775 USA.
[Bailey, S. M.] Virginia Tech, Elect & Comp Engn, Blacksburg, VA USA.
[Warren, H. P.] USN, Res Lab, EO Hulburt Ctr Space Res, Washington, DC 20375 USA.
[Woods, T. N.; Eparvier, F. G.] Univ Colorado, Atmospher & Space Phys Lab, Boulder, CO 80309 USA.
RP Rodgers, EM (reprint author), Univ Alaska, Inst Geophys, Fairbanks, AK 99775 USA.
EM erica.rodgers@gi.alaska.edu
FU NASA [NNG05GE37G]
FX This work was funded through a NASA Graduate Student Researchers Program
fellowship and partially through NASA Grant NNG05GE37G and the TIMED SEE
experiment. We gratefully acknowledge the help and support of the SNOE,
TIMED, and SORCE teams. Erica Rodgers thanks Bill Bristow, John Craven,
Dirk Lummerzheim, Hans Nielsen, and Scott Bailey as helpful and
supportive members of her Ph.D. graduate committee.
NR 31
TC 1
Z9 1
U1 0
U2 1
PU ELSEVIER SCI LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
SN 0273-1177
J9 ADV SPACE RES
JI Adv. Space Res.
PD JAN 4
PY 2010
VL 45
IS 1
BP 28
EP 38
DI 10.1016/j.asr.2009.08.014
PG 11
WC Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology &
Atmospheric Sciences
SC Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences
GA 547VQ
UT WOS:000273918100004
ER
PT J
AU Bashkansky, M
Park, D
Fatemi, FK
AF Bashkansky, Mark
Park, Doewon
Fatemi, Fredrik K.
TI Azimuthally and radially polarized light with a nematic SLM
SO OPTICS EXPRESS
LA English
DT Article
ID CYLINDRICAL-VECTOR BEAMS; ELECTROMAGNETIC DIFFRACTION; SINGLE MOLECULES;
OPTICAL SYSTEMS; IMAGE FIELD; LASER-BEAMS; GENERATION; GRATINGS; FOCUS;
TRAP
AB We demonstrate a technique for generating azimuthally and radially polarized beams using a nematic liquid crystal spatial light modulator and a pi phase step. The technique is similar in concept to prior techniques that interfere TEM01 and TEM10 laser modes, but the presented technique removes the requirement of interferometric stability. We calculate an overlap integral of >0.96 with >70% efficiency from an input Gaussian mode. The technique can easily switch between beams with azimuthal and radial polarization. 2009 Optical Society of America
C1 [Bashkansky, Mark; Fatemi, Fredrik K.] USN, Res Lab, Div Opt Sci, Washington, DC 20375 USA.
[Park, Doewon] USN, Res Lab, Div Elect Sci & Technol, Washington, DC 20375 USA.
RP Bashkansky, M (reprint author), USN, Res Lab, Div Opt Sci, Washington, DC 20375 USA.
EM bashkansky@nrl.navy.mil
FU Office of Naval Research
FX This work was supported by the Office of Naval Research.
NR 30
TC 33
Z9 34
U1 4
U2 22
PU OPTICAL SOC AMER
PI WASHINGTON
PA 2010 MASSACHUSETTS AVE NW, WASHINGTON, DC 20036 USA
SN 1094-4087
J9 OPT EXPRESS
JI Opt. Express
PD JAN 4
PY 2010
VL 18
IS 1
BP 212
EP 217
DI 10.1364/OE.18.000212
PG 6
WC Optics
SC Optics
GA 539JE
UT WOS:000273249400027
PM 20173841
ER
PT J
AU Fatemi, FK
Bashkansky, M
Oh, E
Park, D
AF Fatemi, Fredrik K.
Bashkansky, Mark
Oh, Eunkeu
Park, Doewon
TI Efficient excitation of the TE01 hollow metal waveguide mode for atom
guiding
SO OPTICS EXPRESS
LA English
DT Article
ID CORE OPTICAL-FIBERS; TRANSMISSION; CO2-LASER; TRAPS
AB We demonstrate excitation of the azimuthally-polarized TE01 cylindrical waveguide mode in hollow glass and metal waveguides with 780 nm light. Experimentally, we demonstrate formation of the vectorial vortex beams, and measure attenuation lengths of the TE01 mode in hollow optical fibers with diameters of 50-100 microns. By silver-coating the inner walls of the dielectric fibers, we demonstrate a approximate to 200% increase in the attenuation length. (C) 2009 Optical Society of America
C1 [Fatemi, Fredrik K.; Bashkansky, Mark; Oh, Eunkeu] USN, Res Lab, Div Opt Sci, Washington, DC 20375 USA.
[Park, Doewon] USN, Res Lab, Div Elect Sci & Technol, Washington, DC 20375 USA.
RP Fatemi, FK (reprint author), USN, Res Lab, Div Opt Sci, Washington, DC 20375 USA.
EM ffatemi@ccs.nrl.navy.mil
NR 30
TC 12
Z9 13
U1 5
U2 12
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 4
PY 2010
VL 18
IS 1
BP 323
EP 332
DI 10.1364/OE.18.000323
PG 10
WC Optics
SC Optics
GA 539JE
UT WOS:000273249400038
PM 20173852
ER
PT J
AU Du, EY
Ives, R
van Nevel, A
She, JH
AF Du, Eliza Yingzi
Ives, Robert
van Nevel, Alan
She, Jin-Hua
TI Advanced Image Processing for Defense and Security Applications
SO EURASIP JOURNAL ON ADVANCES IN SIGNAL PROCESSING
LA English
DT Editorial Material
C1 [Du, Eliza Yingzi] Indiana Univ Purdue Univ Indianapolis, Dept Elect & Comp Engn, Indainapolis, IN 46259 USA.
[Ives, Robert] USN Acad, Dept Elect Engn, Annapolis, MD 21402 USA.
[van Nevel, Alan] USN, Air Warfare Ctr, Image & Signal Proc Branch, Res Dept, China Lake, CA 93555 USA.
[She, Jin-Hua] Tokyo Univ Technol, Sch Comp Sci, Tokyo 1920982, Japan.
RP Du, EY (reprint author), Indiana Univ Purdue Univ Indianapolis, Dept Elect & Comp Engn, 723W Michigan St,SL 160, Indainapolis, IN 46259 USA.
EM yidu@iupui.edu
NR 0
TC 0
Z9 0
U1 1
U2 4
PU HINDAWI PUBLISHING CORPORATION
PI NEW YORK
PA 410 PARK AVENUE, 15TH FLOOR, #287 PMB, NEW YORK, NY 10022 USA
SN 1687-6172
J9 EURASIP J ADV SIG PR
JI EURASIP J. Adv. Signal Process.
PY 2010
AR 432972
DI 10.1155/2010/432972
PG 1
WC Engineering, Electrical & Electronic
SC Engineering
GA 760MJ
UT WOS:000290328100001
ER
PT S
AU Badescu, SC
Kim, D
Bracker, AS
Gammon, D
Reinecke, TL
AF Badescu, S. C.
Kim, D.
Bracker, A. S.
Gammon, D.
Reinecke, T. L.
BE Vina, L
Tejedor, C
Calleja, JM
TI DYNAMICAL NUCLEAR POLARIZATION VIA TRIPLET STATES IN SELF-ASSEMBLED
QUANTUM DOT MOLECULES
SO 11TH INTERNATIONAL CONFERENCE ON OPTICS OF EXCITONS IN CONFINED SYSTEMS
(OECS11)
SE Journal of Physics Conference Series
LA English
DT Meeting Abstract
CT 11th International Conference on Optics of Excitons in Confined Systems
CY SEP 07-11, 2009
CL Univ Autonoma Madrid, SPAIN
HO Univ Autonoma Madrid
C1 [Badescu, S. C.; Kim, D.; Bracker, A. S.; Gammon, D.; Reinecke, T. L.] USN, Res Lab, Washington, DC 20375 USA.
EM stefan.badescu@nrl.navy.mil
NR 1
TC 0
Z9 0
U1 0
U2 3
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2010
VL 210
PG 1
WC Optics; Physics, Condensed Matter
SC Optics; Physics
GA BUL25
UT WOS:000289715800005
ER
PT S
AU Kowalski, MP
Barstow, MA
Wood, KS
Yentis, DJ
Fritz, GG
Lapington, JS
Barbee, TW
Cruddace, RG
AF Kowalski, M. P.
Barstow, M. A.
Wood, K. S.
Yentis, D. J.
Fritz, G. G.
Lapington, J. S.
Barbee, T. W., Jr.
Cruddace, R. G.
BE Werner, K
Rauch, T
TI High Resolution EUV Spectroscopy of Feige 24
SO 17TH EUROPEAN WHITE DWARF WORKSHOP
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 17th European White Dwarf Workshop
CY AUG 16-20, 2010
CL Tubingen, GERMANY
SP German Res Fdn, Univ Tubingen
DE White Dwarfs; Ultraviolet; Spectroscopy
ID DA WHITE-DWARFS; EXTREME-ULTRAVIOLET; G191-B2B; INTERSTELLAR;
ATMOSPHERES; PHOTOSPHERE
AB We report the first high-resolution (R=4000) spectroscopic observation of the binary DA white dwarf Feige 24 in the extreme-ultraviolet band 220-250 angstrom. A stellar atmosphere model assuming a homogeneous element distribution yields a best fit to the data that excludes a significant abundance of photospheric helium, a surprising result contrary to predictions by common envelope evolution theory. The upper limit on the photospheric helium abundance is 2.5x10(-6) (90% confidence), and the lower limit on the overlying layer of hydrogen is 1.2 x 10(-13) M-circle dot. An ionized He component (3.9 x 10(17) cm(-2)) is clearly present along the line-of-sight, which if completely interstellar implies a He ionization fraction of 0.7, considerably higher than is typical of the local interstellar medium.
C1 [Kowalski, M. P.; Wood, K. S.; Yentis, D. J.; Cruddace, R. G.] USN, Res Lab, Washington, DC 20375 USA.
RP Kowalski, MP (reprint author), USN, Res Lab, Code 7655,4555 Overlook Ave SW, Washington, DC 20375 USA.
EM kowalski@gfz-potsdam.de; mab@star.le.ac.uk
RI Lapington, Jon/A-7669-2012
NR 16
TC 0
Z9 0
U1 1
U2 1
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0823-4
J9 AIP CONF PROC
PY 2010
VL 1273
BP 52
EP 57
PG 6
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA BTK36
UT WOS:000287165200011
ER
PT S
AU Coleman, JO
AF Coleman, Jeffrey O.
BE Kleijn, B
Larsen, J
TI Tapers for Large Planar Phased Arrays on Regular Grids: Simple Design
Methods versus Second-Order Cone Programming
SO 18TH EUROPEAN SIGNAL PROCESSING CONFERENCE (EUSIPCO-2010)
SE European Signal Processing Conference
LA English
DT Proceedings Paper
CT 18th European Signal Processing Conference (EUSIPCO)
CY AUG 23-27, 2010
CL Aalborg, DENMARK
SP Aalborg Univ, European Assoc Signal, Speech, & Image Proc
AB Design experiments compare taper-design approaches for a narrowband planar array of 10,000 or so elements on the triangular grid. Considered: a hexagonal-kernel McClellan transformation, a product of three 1D tapers, sampling Taylor's circular aperture, and second-order cone programming.
C1 Naval Res Lab, Div Radar, Washington, DC 20375 USA.
RP Coleman, JO (reprint author), Naval Res Lab, Div Radar, Washington, DC 20375 USA.
NR 8
TC 0
Z9 0
U1 0
U2 0
PU EUROPEAN ASSOC SIGNAL SPEECH & IMAGE PROCESSING-EURASIP
PI KESSARIANI
PA PO BOX 74251, KESSARIANI, 151 10, GREECE
SN 2076-1465
J9 EUR SIGNAL PR CONF
PY 2010
VL 18
BP 1058
EP 1062
PG 5
WC Engineering, Electrical & Electronic
SC Engineering
GA BC1DO
UT WOS:000349999100214
ER
PT S
AU Estellers, V
Baggenstoss, PM
Thiran, JP
AF Estellers, Virginia
Baggenstoss, Paul M.
Thiran, Jean-Philippe
BE Kleijn, B
Larsen, J
TI CLASS-SPECIFIC CLASSIFIERS IN AUDIO-VISUAL SPEECH RECOGNITION
SO 18TH EUROPEAN SIGNAL PROCESSING CONFERENCE (EUSIPCO-2010)
SE European Signal Processing Conference
LA English
DT Proceedings Paper
CT 18th European Signal Processing Conference (EUSIPCO)
CY AUG 23-27, 2010
CL Aalborg, DENMARK
SP Aalborg Univ, European Assoc Signal, Speech, & Image Proc
AB In this paper, class-specific classifiers for audio, visual and audiovisual speech recognition systems are developed and compared with traditional Bayes classifiers. We use state-of-the-art feature extraction methods and develop traditional and class-specific classifiers for speech recognition, showing the benefits of a class-specific method on each modality for speaker dependent and independent set-ups. Experiments with a reference audio-visual database show a general increase in the systems performance by the introduction of class-specific techniques on both visual and audio-visual modalities.
C1 [Estellers, Virginia; Thiran, Jean-Philippe] Ecole Polytech Fed Lausanne, Signal Proc Lab LTS5, CH-1015 Lausanne, Switzerland.
[Baggenstoss, Paul M.] Naval Undersea Warfare Ctr, Newport, RI USA.
RP Estellers, V (reprint author), Ecole Polytech Fed Lausanne, Signal Proc Lab LTS5, CH-1015 Lausanne, Switzerland.
OI Thiran, Jean-Philippe/0000-0003-2938-9657
NR 16
TC 0
Z9 0
U1 0
U2 0
PU EUROPEAN ASSOC SIGNAL SPEECH & IMAGE PROCESSING-EURASIP
PI KESSARIANI
PA PO BOX 74251, KESSARIANI, 151 10, GREECE
SN 2076-1465
J9 EUR SIGNAL PR CONF
PY 2010
VL 18
BP 1998
EP 2002
PG 5
WC Engineering, Electrical & Electronic
SC Engineering
GA BC1DO
UT WOS:000349999100406
ER
PT S
AU Van Nevel, A
AF Van Nevel, Alan
BE Javidi, B
MohammadDjafari, A
Fournel, T
TI Geometric diffusion as a classifier
SO 2009 INTERNATIONAL WORKSHOP ON INFORMATION OPTICS
SE Journal of Physics Conference Series
LA English
DT Proceedings Paper
CT 8th International Workshop on Information Optics (WIO 09)
CY JUL 20-24, 2009
CL Paris, FRANCE
AB Often, the problem of automatic target recognition can be reduced down to two separate but related problems, feature extraction and classifier design. The best classifier only works as well as the input data provided to the system. In this presentation, we will outline a new approach to classification known as geometric diffusion as proposed by Coifman et al, and demonstrate the power of this new metric for classification of imagery.
C1 USN, Naval Air Warfare Ctr, Weap Div, China Lake, CA 93555 USA.
RP Van Nevel, A (reprint author), USN, Naval Air Warfare Ctr, Weap Div, 1900 N Knox Rd,M-S 6302, China Lake, CA 93555 USA.
EM alan.vannevel@navy.mil
NR 6
TC 0
Z9 0
U1 0
U2 0
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 1742-6588
J9 J PHYS CONF SER
PY 2010
VL 206
AR 012034
DI 10.1088/1742-6596/206/1/012034
PG 2
WC Optics; Physics, Applied
SC Optics; Physics
GA BTQ54
UT WOS:000287787400034
ER
PT S
AU Aebersold, J
Walsh, K
Beggans, M
AF Aebersold J, Julia
Walsh, Kevin
Beggans, Michael
GP IEEE
TI Utilization of Direct Write Lithography to Develop Ultra High Aspect
Ratio (> 100:1) DRIE Silicon Pillars
SO 2010 18TH BIENNIAL UNIVERSITY/GOVERNMENT/INDUSTRY MICRO-NANO SYMPOSIUM
SE University Government Industry Micro-Nano Symposium Proceedings
LA English
DT Proceedings Paper
CT 18th Biennial University/Government/Industry Micro-Nano Symposium
CY JUN 28-JUL 01, 2010
CL Purdue Univ, West Lafayette, IN
SP IEEE
HO Purdue Univ
AB Aspect ratios for deep reactive ion etching (DRIE) typically do not exceed 100. The discussed technique uses direct write lithography utilizing a Heidelberg DWL 66FS laser pattern generator followed by DRIE and hydrofluoric acid etching to create a nano pillar array on a silicon wafer. Prior to the direct write process, chrome was patterned on the wafer to act as an etch stop once the positive photoresist was consumed via DRIE. The sample was then oxygen-plasma etched to remove any remaining C4F8 residuals, as confirmed by Energy Dispersive X-ray spectroscopy. Remaining oxides were removed with dilute hydrofluoric acid and the wafer was rinsed with de-ionized water. The resulting structure was a nano pillar array with aspect ratios of 129.9:1, where pillar lengths were 50 mu m with widths of 380 nm.
C1 [Aebersold J, Julia; Walsh, Kevin] Univ Louisville, Louisville, KY 40292 USA.
[Beggans, Michael] Naval Surface Warfare Ctr, Indian Head Div, Indian Head, MARYLAND.
RP Aebersold, J (reprint author), Univ Louisville, Louisville, KY 40292 USA.
FU U.S. Navy [DAAB07-03-D-B010/TO-0198]
FX We gratefully acknowledge the funding for this effort from U.S. Navy
Contract DAAB07-03-D-B010/TO-0198.
NR 5
TC 0
Z9 0
U1 2
U2 5
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 0749-6877
BN 978-1-4244-4732-9
J9 U GOV IND MICRO NANO
PY 2010
PG 5
WC Engineering, Electrical & Electronic; Nanoscience & Nanotechnology
SC Engineering; Science & Technology - Other Topics
GA BTO08
UT WOS:000287454500032
ER
PT S
AU Bewley, WW
Canedy, CL
Kim, CS
Kim, M
Lindle, JR
Abell, J
Vurgaftman, I
Meyer, JR
AF Bewley, W. W.
Canedy, C. L.
Kim, C. S.
Kim, M.
Lindle, J. R.
Abell, J.
Vurgaftman, I.
Meyer, J. R.
GP IEEE
TI ADVANCES IN THE GROWTH AND PERFORMANCE OF ANTIMONIDE-BASED MID-INFRARED
INTERBAND CASCADE LASERS
SO 2010 22ND INTERNATIONAL CONFERENCE ON INDIUM PHOSPHIDE AND RELATED
MATERIALS (IPRM)
SE International Conference on Indium Phosphide and Related Materials
LA English
DT Proceedings Paper
CT 22nd International Conference on Indium Phosphide and Related Materials
CY MAY 31-JUN 04, 2010
CL Kagawa, JAPAN
SP Japan Soc Applied Phys, IEEE Photon Soc, IEEE Elect Devic Soc, IEICE Electron Soc Japan, Kagawa Univ
ID QUANTUM-WELL LASERS; HIGH-POWER; ROOM-TEMPERATURE; CONTINUOUS-WAVE;
NARROW-RIDGE
AB We discuss the growth and state-of-the-art performance characteristics of mid-infrared interband cascade lasers. Broad-area devices with 5 active stages display pulsed threshold current densities as low as 400 A/cm(2) at room temperature, owing to an unexpectedly strong suppression of Auger recombination. New designs also produce lasers with internal losses as low as approximate to 6 cm(-1) at room temperature. We also study the performance of narrow ridges that dissipate heat efficiently for high-temperature cw operation. The degradations of the threshold current density and differential slope efficiency are modest until the ridge width is decreased to 3 mu m. A 13-mu m-wide uncoated ridge produces up to 45 mW of cw power at 293 K, and displays a maximum wall-plug efficiency of 3.5%. A 5-mu m-wide 3-mm-long ridge without any facet coatings operates cw to 345 K, which is a new record high temperature for any semiconductor laser emitting in the 3.0-4.6 mu m spectral range.
C1 [Bewley, W. W.; Canedy, C. L.; Kim, C. S.; Kim, M.; Lindle, J. R.; Abell, J.; Vurgaftman, I.; Meyer, J. R.] USN, Res Lab, Washington, DC 20375 USA.
RP Bewley, WW (reprint author), USN, Res Lab, Code 5613, Washington, DC 20375 USA.
NR 13
TC 0
Z9 0
U1 1
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1092-8669
BN 978-1-4244-5920-9
J9 CONF P INDIUM PHOSPH
PY 2010
PG 4
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BTN71
UT WOS:000287417700017
ER
PT J
AU Bewley, WW
Canedy, CL
Kim, CS
Kim, M
Lindle, JR
Abell, J
Vurgaftman, I
Meyer, JR
AF Bewley, W. W.
Canedy, C. L.
Kim, C. S.
Kim, M.
Lindle, J. R.
Abell, J.
Vurgaftman, I.
Meyer, J. R.
GP IEEE
TI High Single-Mode Powers from Interband Cascade Lasers
SO 2010 23RD ANNUAL MEETING OF THE IEEE PHOTONICS SOCIETY
LA English
DT Proceedings Paper
CT 23rd Annual Meeting of the IEEE Photonics-Society
CY NOV 07-11, 2010
CL Denver, CO
SP IEEE Photon Soc
C1 [Bewley, W. W.; Canedy, C. L.; Kim, C. S.; Kim, M.; Lindle, J. R.; Abell, J.; Vurgaftman, I.; Meyer, J. R.] USN, Res Lab, Washington, DC 20375 USA.
RP Bewley, WW (reprint author), USN, Res Lab, Code 5613, Washington, DC 20375 USA.
EM jerry.meyer@nrl.navy.mil
NR 2
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4244-5369-6
PY 2010
BP 419
EP 420
DI 10.1109/PHOTONICS.2010.5698938
PG 2
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BTS83
UT WOS:000287997500211
ER
PT S
AU Ranchal, R
Bhargava, B
Ben Othmane, L
Lilien, L
Kim, A
Kang, MO
Linderman, M
AF Ranchal, Rohit
Bhargava, Bharat
Ben Othmane, Lotfi
Lilien, Leszek
Kim, Anya
Kang, Myong
Linderman, Mark
GP IEEE
TI Protection of Identity Information in Cloud Computing without Trusted
Third Party
SO 2010 29TH IEEE INTERNATIONAL SYMPOSIUM ON RELIABLE DISTRIBUTED SYSTEMS
SRDS 2010
SE Symposium on Reliable Distributed Systems Proceedings
LA English
DT Proceedings Paper
CT 29th IEEE International Symposium on Reliable Distributed Systems
CY OCT 31-NOV 03, 2010
CL New Delhi, INDIA
SP IEEE Comp Soc Tech Comm, Microsoft Res, IBM, NSF
DE active bundle; computing predicates; cloud computing; identity
management system; multi-party computing; privacy; security
AB Cloud computing allows the use of Internet-based services to support business processes and rental of IT-services on a utility-like basis. It offers a concentration of resources but also poses risks for data privacy. A single breach can cause significant loss. The heterogeneity of "users" represents a danger of multiple, collaborative threats.
In cloud computing, entities may have multiple accounts associated with a single or multiple service providers (SPs). Sharing sensitive identity information (that is, Personally Identifiable information or PII) along with associated attributes of the same entity across services can lead to mapping of the identities to the entity, tantamount to privacy loss.
Identity management (IDM) is one of the core components in cloud privacy and security and can help alleviate some of the problems associated with cloud computing. Available solutions use trusted third party (TTP) in identifying entities to SPs. The solution providers do not recommend the usage of their solutions on untrusted hosts.
We propose an approach for IDM, which is independent of TTP and has the ability to use identity data on untrusted hosts. The approach is based on the use of predicates over encrypted data and multi-party computing for negotiating a use of a cloud service. It uses active bundle-which is a middleware agent that includes PII data, privacy policies, a virtual machine that enforces the policies, and has a set of protection mechanisms to protect itself. An active bundle interacts on behalf of a user to authenticate to cloud services using user's privacy policies.
C1 [Ranchal, Rohit; Bhargava, Bharat] Purdue Univ, Dept Comp Sci, W Lafayette, IN 47907 USA.
[Ben Othmane, Lotfi; Lilien, Leszek] Western Michigan Univ, Dept Comp Sci, Kalamazoo, MI 49008 USA.
[Kim, Anya] Naval Res Lab, Washington, DC USA.
[Linderman, Mark] AF Res Lab, Rome, NY USA.
RP Ranchal, R (reprint author), Purdue Univ, Dept Comp Sci, W Lafayette, IN 47907 USA.
EM rranchal@purdue.edu; bbshail@purdue.edu; lotfi.benothmane@wmich.edu;
leszek.lilien@wmich.edu; anya.kim@nrl.navy.mil; myong.kang@nrl.navy.mil;
mark.linderman@rl.af.mil
OI ben Othmane, Lotfi/0000-0003-0883-7844
FU AFRL; NGC Corp
FX This research was supported by a contract from AFRL and NGC Corp.
NR 16
TC 19
Z9 20
U1 0
U2 4
PU IEEE COMPUTER SOC
PI LOS ALAMITOS
PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1264 USA
SN 1060-9857
BN 978-0-7695-4250-8
J9 SYM REL DIST SYST
PY 2010
BP 368
EP 372
DI 10.1109/SRDS.2010.57
PG 5
WC Computer Science, Theory & Methods; Engineering, Electrical & Electronic
SC Computer Science; Engineering
GA BTO39
UT WOS:000287486100046
ER
PT S
AU Ammula, V
Rao, SM
Wentworth, SM
AF Ammula, Veneela
Rao, S. M.
Wentworth, Stuart M.
GP IEEE
TI Dual Excited Planar Circular Array Antenna for Direction Agile
Applications
SO 2010 42ND SOUTHEASTERN SYMPOSIUM ON SYSTEM THEORY (SSST)
SE Southeastern Symposium on System Theory
LA English
DT Proceedings Paper
CT 42nd South Eastern Symposium on System Theory
CY MAR 07-09, 2010
CL Univ Texas, Tyler, TX
HO Univ Texas
DE Smart antennas; beam steering; multiple excitations; antenna arrays
AB Smart antennas present a promising solution to the present day capacity and coverage shortage in mobile wireless communications. These intelligent antennas when used at the base station can avoid a lot of interference by transmitting and receiving signals only in desired directions. Circular array antennas have gained popularity among various antenna configurations used for direction agile applications.
This paper presents a planar circular array antenna for base stations in mobile wireless communication systems. The antenna could be electronically steered to give a complete 360 coverage around the base station. The model was created using FEKO Suite 5.4, a Method of Moments (MoM) based electromagnetic simulation software. Particle Swarm Optimization algorithm was applied to maximize the gain of the antenna in a single azimuth direction. Ideal dimensions for the antenna structure were obtained from the optimization process.
The designed antenna was fabricated and tested in an anechoic chamber to verify its radiation characteristics. The experimental results were found to be in good agreement with the simulation results.
C1 [Ammula, Veneela; Wentworth, Stuart M.] Auburn Univ, Dept ECE, Auburn, AL 36849 USA.
[Rao, S. M.] Naval Res Lab, Washington, DC USA.
RP Ammula, V (reprint author), Auburn Univ, Dept ECE, Auburn, AL 36849 USA.
FU WEREC; Auburn University
FX This work is supported by WEREC, Auburn University. The authors would
like to thank Calvin Cutshaw and the ECE department for assistance in
fabrication of the antenna.
NR 10
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 0094-2898
BN 978-1-4244-5692-5
J9 SE SYM SYS THRY
PY 2010
PG 5
WC Computer Science, Theory & Methods; Engineering, Electrical & Electronic
SC Computer Science; Engineering
GA BTN66
UT WOS:000287413500026
ER
PT S
AU Beaubouef, T
Petry, FE
AF Beaubouef, Theresa
Petry, Frederick E.
GP IEEE
TI Database Security Issues in Rough Relational Databases
SO 2010 42ND SOUTHEASTERN SYMPOSIUM ON SYSTEM THEORY (SSST)
SE Southeastern Symposium on System Theory
LA English
DT Proceedings Paper
CT 42nd South Eastern Symposium on System Theory
CY MAR 07-09, 2010
CL Univ Texas, Tyler, TX
HO Univ Texas
DE rough sets; database security; information theory; entropy; rough
relational database
ID MATHEMATICAL-THEORY; UNCERTAINTY; COMMUNICATION
AB In this paper we consider security issues that arise in imprecise databases based on rough set theory. The aspect of security considered is similar to that in statistical databases for which a combination of queries cannot reveal exact values of attributes. Information theory measures are used to characterize security for imprecise databases.
C1 [Beaubouef, Theresa] Southeastern Louisiana Univ, Dept Comp Sci, Hammond, LA 70402 USA.
[Petry, Frederick E.] Stennis Space Ctr, Naval Res Lab, Mississippi State, MS USA.
RP Beaubouef, T (reprint author), Southeastern Louisiana Univ, Dept Comp Sci, Hammond, LA 70402 USA.
NR 21
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 0094-2898
BN 978-1-4244-5692-5
J9 SE SYM SYS THRY
PY 2010
PG 5
WC Computer Science, Theory & Methods; Engineering, Electrical & Electronic
SC Computer Science; Engineering
GA BTN66
UT WOS:000287413500068
ER
PT S
AU Bush, FN
Esposito, JM
AF Bush, Forrest N.
Esposito, Joel M.
GP IEEE
TI Vision-Based Lane Detection for an Autonomous Ground Vehicle: A
Comparative Field Test
SO 2010 42ND SOUTHEASTERN SYMPOSIUM ON SYSTEM THEORY (SSST)
SE Southeastern Symposium on System Theory
LA English
DT Proceedings Paper
CT 42nd South Eastern Symposium on System Theory
CY MAR 07-09, 2010
CL Univ Texas, Tyler, TX
HO Univ Texas
DE Vision-Based Control; Unmanned Vehicles
AB We examine the problem of designing computer vision algorithms to autonomously drive an off road vehicle between two lane markings painted on the ground. In this paper we describe field tests used to compare the efficacy of two popular line extractions techniques from the literature: the Hough Transform and the RANSAC Algorithm. Although it is very implementation dependent, we found the Hough Transform to be superior to the RANSAC algorithm in both speed and accuracy for identifying lane markings in the off road environment.
C1 [Bush, Forrest N.; Esposito, Joel M.] USN Acad, Annapolis, MD 21402 USA.
RP Bush, FN (reprint author), USN Acad, Annapolis, MD 21402 USA.
EM m100744@usna.edu; esposito@usna.edu
NR 11
TC 0
Z9 0
U1 0
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 0094-2898
BN 978-1-4244-5692-5
J9 SE SYM SYS THRY
PY 2010
PG 5
WC Computer Science, Theory & Methods; Engineering, Electrical & Electronic
SC Computer Science; Engineering
GA BTN66
UT WOS:000287413500006
ER
PT S
AU Felps, CM
Fick, MH
Kinkade, KR
Searock, J
Piepmeier, JA
AF Felps, Charles M.
Fick, Michael H.
Kinkade, Keegan R.
Searock, Jeremy
Piepmeier, Jenelle Armstrong
GP IEEE
TI Integration of Semantic Vision Techniques for an Autonomous Robot
Platform
SO 2010 42ND SOUTHEASTERN SYMPOSIUM ON SYSTEM THEORY (SSST)
SE Southeastern Symposium on System Theory
LA English
DT Proceedings Paper
CT 42nd South Eastern Symposium on System Theory
CY MAR 07-09, 2010
CL Univ Texas, Tyler, TX
HO Univ Texas
DE Semantic Vision; SIFT
AB The Semantic Robot Vision Challenge is a research competition designed to advance the ability of agent's to automatically acquire knowledge and use this knowledge to identity objects in an unknown and unstructured environment. In this paper, we present a complete design and implementation of a robotic system intended to compete in the Semantic Robot Vision Challenge. The system takes a text input document of specific objects to search an online visual database to find a training image. The system then autonomously navigates through a cluttered environment, captures images of objects in the area, and uses the training images to identify objects found in the captured images. The system is complete, robust, and achieved first place in the 2009 competition.
C1 [Felps, Charles M.; Fick, Michael H.; Kinkade, Keegan R.; Searock, Jeremy; Piepmeier, Jenelle Armstrong] USN Acad, Annapolis, MD 21402 USA.
RP Felps, CM (reprint author), USN Acad, Annapolis, MD 21402 USA.
NR 12
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 0094-2898
BN 978-1-4244-5692-5
J9 SE SYM SYS THRY
PY 2010
PG 5
WC Computer Science, Theory & Methods; Engineering, Electrical & Electronic
SC Computer Science; Engineering
GA BTN66
UT WOS:000287413500047
ER
PT S
AU Henderson, MC
Robertson, M
Feemster, M
AF Henderson, Midn. C.
Robertson, M.
Feemster, M.
GP IEEE
TI Implementation of Headway Compensation on Autonomous Vehicle Convoys
with Command Shaping
SO 2010 42ND SOUTHEASTERN SYMPOSIUM ON SYSTEM THEORY (SSST)
SE Southeastern Symposium on System Theory
LA English
DT Proceedings Paper
CT 42nd South Eastern Symposium on System Theory
CY MAR 07-09, 2010
CL Univ Texas, Tyler, TX
HO Univ Texas
DE autonomous convoy control; command shaping
AB This paper documents the application of the use of headway on autonomous convoys using front and back spacing information. The control method is based only on distance measurements between vehicles in the platoon. The lead vehicle's longitudinal control is developed to follow a given velocity. The follower vehicles maintain the desired spacing using distance measurements to the preceding and following vehicles. Headway proportionally varies the desired spacing between the vehicles based on the vehicle's speed. This approach leads to more physically realizable controller efforts for the follower vehicles and helps maintain and improve string stability.
C1 [Henderson, Midn. C.; Robertson, M.; Feemster, M.] USN Acad, Weap & Syst Engn Dept, Annapolis, MD 21402 USA.
RP Henderson, MC (reprint author), USN Acad, Weap & Syst Engn Dept, Annapolis, MD 21402 USA.
EM mroberts@usna.edu
NR 9
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 0094-2898
BN 978-1-4244-5692-5
J9 SE SYM SYS THRY
PY 2010
PG 5
WC Computer Science, Theory & Methods; Engineering, Electrical & Electronic
SC Computer Science; Engineering
GA BTN66
UT WOS:000287413500004
ER
PT S
AU Ruttum, M
Parikh, SP
AF Ruttum, Mary
Parikh, Sarangi P.
GP IEEE
TI Can robots recognize common Marine gestures?
SO 2010 42ND SOUTHEASTERN SYMPOSIUM ON SYSTEM THEORY (SSST)
SE Southeastern Symposium on System Theory
LA English
DT Proceedings Paper
CT 42nd South Eastern Symposium on System Theory
CY MAR 07-09, 2010
CL Univ Texas, Tyler, TX
HO Univ Texas
DE human-robot interaction; gesture recognition; comparison study
AB This paper provides a different method for human-robot interaction and further encourages communication between human users and their robotic counterparts. The focus of our work is to develop a human-robot communication system that is not easily detectable and increases stealth when necessary. The human-robot interaction system we propose involves hand signals. Hand gestures are a common modality of communication humans use with each other. Likewise, hand commands are used by the Marine Corps to convey information to each other without speaking. We analyze common Marine gestures so that similar commands can be used to direct a robot out in the field. In this paper, we have selected important hand or body gestures used by the Marine Corps. We then identify distinguishable features for the different gestures. This includes position of joint variables as well as velocity and acceleration terms. Once ideal models of the gestures are designed, experimental data is gathered. Presently, we are comparing two different machine learning methods that can be used to identify a specific gesture. The two methods we are comparing are Bayesian networks and neural networks. This paper provides the background and structure of our experiments. Then, both models are discussed and experimental results are included. Finally, we make a comparison of the effectiveness of the two methods of interest.
C1 [Ruttum, Mary; Parikh, Sarangi P.] USN Acad, Weap & Syst Engn Dept, Annapolis, MD 21402 USA.
RP Ruttum, M (reprint author), USN Acad, Weap & Syst Engn Dept, Annapolis, MD 21402 USA.
EM m105724@usna.edu; sparikh@usna.edu
NR 4
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 0094-2898
BN 978-1-4244-5692-5
J9 SE SYM SYS THRY
PY 2010
PG 5
WC Computer Science, Theory & Methods; Engineering, Electrical & Electronic
SC Computer Science; Engineering
GA BTN66
UT WOS:000287413500044
ER
PT S
AU Topp, ENSJ
Feemster, M
AF Topp, E. N. S. J.
Feemster, M.
GP IEEE
TI An Adaptive Control Design for a System with Unknown Control Direction:
Experimental Results
SO 2010 42ND SOUTHEASTERN SYMPOSIUM ON SYSTEM THEORY (SSST)
SE Southeastern Symposium on System Theory
LA English
DT Proceedings Paper
CT 42nd South Eastern Symposium on System Theory
CY MAR 07-09, 2010
CL Univ Texas, Tyler, TX
HO Univ Texas
AB In this paper, experimental results for a singularity-free control algorithm capable of adapting for unknown control direction is presented. Specifically, the adaptive control design is implemented on a simple DC motor/inertial load system where the influence of the voltage control input is uncertain. Specifically, the controller is not sure whether a positive/negative torque is produced when a positive command voltage is applied. As a result, the armature winding connections can be reversed and the rotor velocity control objective tracking can still be achieved without additional hardware modification.
C1 [Topp, E. N. S. J.; Feemster, M.] USN Acad, Weap & Syst Engn Dept, Annapolis, MD 21402 USA.
RP Topp, ENSJ (reprint author), USN Acad, Weap & Syst Engn Dept, Annapolis, MD 21402 USA.
EM feemster@usna.edu
NR 8
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 0094-2898
BN 978-1-4244-5692-5
J9 SE SYM SYS THRY
PY 2010
PG 4
WC Computer Science, Theory & Methods; Engineering, Electrical & Electronic
SC Computer Science; Engineering
GA BTN66
UT WOS:000287413500016
ER
PT J
AU Barber, DE
McEachen, JC
AF Barber, Don E.
McEachen, John C.
BE Wysocki, BJ
Wysocki, TA
TI Geolocation of WiMAX Subscriber Stations Based on the Timing Adjust
Ranging Parameter
SO 2010 4TH INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATION
SYSTEMS (ICSPCS)
LA English
DT Proceedings Paper
CT 4th International Conference on Signal Processing and Communication
Systems (ICSPCS)/12th International Symposium on DSP and Communication
Systems (DSPCS)/9th Workshop on the Internet, Telecommunications and
Signal Processing (WTSP)
CY DEC 13-15, 2010
CL Gold Coast, AUSTRALIA
SP IEEE, IEEE Commun Soc, Univ Nebraska, Peter Kiewit Inst, Univ Nebraska Lincoln, Coll Engn
DE 802.16; WiMAX; geolocation; timing adjust; ranging
AB This paper examines the geolocation of standard compliant WiMAX subscriber stations based on timing adjust values captured from the air interface during network entry and initial ranging. Field tests were conducted to verify a linear correlation between timing adjust and distance. Repeated observations at fixed distances established the variance within timing adjusts. Results of this field testing were extended to multiple base station networks modeled in computer simulation, ultimately suggesting the possibility for geolocations based on WiMAX initial ranging with ten times greater accuracy then similar methods applied to GSM.
C1 [Barber, Don E.; McEachen, John C.] Naval Postgrad Sch, Grad Sch Engn & Appl Sci, Monterey, CA USA.
RP Barber, DE (reprint author), Naval Postgrad Sch, Grad Sch Engn & Appl Sci, Monterey, CA USA.
NR 6
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4244-7907-8
PY 2010
PG 5
WC Engineering, Electrical & Electronic
SC Engineering
GA BYP61
UT WOS:000299631600010
ER
PT J
AU Walker, TO
Tummala, M
McEachen, J
AF Walker, T. Owens, III
Tummala, Murali
McEachen, John
BE Wysocki, BJ
Wysocki, TA
TI Energy Consumption Analysis of Flow-specific Medium Access and the Role
of Probabilistic Preamble Sampling in Energy and Delay Performance
SO 2010 4TH INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATION
SYSTEMS (ICSPCS)
LA English
DT Proceedings Paper
CT 4th International Conference on Signal Processing and Communication
Systems (ICSPCS)/12th International Symposium on DSP and Communication
Systems (DSPCS)/9th Workshop on the Internet, Telecommunications and
Signal Processing (WTSP)
CY DEC 13-15, 2010
CL Gold Coast, AUSTRALIA
SP IEEE, IEEE Commun Soc, Univ Nebraska, Peter Kiewit Inst, Univ Nebraska Lincoln, Coll Engn
DE wireless; medium access; flow-specific; energy efficient; preamble
sampling; low power listening
ID WIRELESS SENSOR NETWORKS
AB In this paper, we present a novel energy consumption analysis of the flow-specific Cooperative Wireless Sensor Network Medium Access Control (CWS-MAC) protocol utilizing a nine-state radio energy model that includes both steady state and transient state energy consumption behavior. CWS-MAC is a traffic-adaptive, energy-efficient medium access scheme that has been shown in the literature to outperform both traditional contention and non-contention-based approaches by providing medium access service on a per flow basis. We also formally define and quantitatively investigate the technique of probabilistic preamble sampling which provides the ability to trade-off delay performance and energy consumption in the operation of low-power medium access schemes.
C1 [Walker, T. Owens, III] USN Acad, Dept Elect & Comp Engn, Annapolis, MD 21402 USA.
[Tummala, Murali; McEachen, John] Naval Postgrad Sch, Dept Elect & Comp Engn, Monterey, CA 93943 USA.
RP Walker, TO (reprint author), USN Acad, Dept Elect & Comp Engn, Annapolis, MD 21402 USA.
EM owalker@usna.edu; mtummala@nps.edu; mceachen@nps.edu
NR 21
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4244-7907-8
PY 2010
PG 10
WC Engineering, Electrical & Electronic
SC Engineering
GA BYP61
UT WOS:000299631600057
ER
PT S
AU Mukherjee, K
Gupta, S
Ray, A
Wettergren, TA
AF Mukherjee, Kushal
Gupta, Shalabh
Ray, Asok
Wettergren, Thomas A.
GP IEEE
TI Statistical Mechanics-inspired Optimization for Sensor Field
Reconfiguration
SO 2010 AMERICAN CONTROL CONFERENCE
SE Proceedings of the American Control Conference
LA English
DT Proceedings Paper
CT American Control Conference
CY JUN 30-JUL 02, 2010
CL Baltimore, MD
DE Multi-objective optimization; Pareto Front; Statistical Mechanics; Gibbs
Measure; Sensor field reconfiguration; Multi-agent Systems
ID PHASE-TRANSITION; NETWORKS
AB In a multi-objective optimization scenario (e.g., optimal sensor deployment and sensor field reconfiguration for detection of moving targets), the non-dominated points are usually concentrated within a small region of the large-dimensional decision space. This paper attempts to capture the low-dimensional behavior across the Pareto front by statistical mechanics-inspired optimization tools. A location-dependent energy function has been constructed and evaluated in terms of intensive temperature-like parameters in the sense of statistical mechanics. This low-order representation has been shown to permit rapid optimization of sensor field distribution on a simulation model of undersea operations.
C1 [Mukherjee, Kushal; Gupta, Shalabh; Ray, Asok] Penn State Univ, University Pk, PA 16802 USA.
[Wettergren, Thomas A.] Naval Undersea Warfare Ctr, Newport, RI 02841 USA.
RP Mukherjee, K (reprint author), Penn State Univ, University Pk, PA 16802 USA.
EM kum162@psu.edu; szg107@psu.edu; axr2@psu.edu; t.a.wettergren@ieee.org
OI Wettergren, Thomas/0000-0002-6623-8412
FU U.S. Office of Naval Research [N00014-09-1-0688]; U.S. Army Research
Laboratory; U.S. Army Research Office [W911NF-07-1-0376]
FX This work has been supported in part by the U.S. Office of Naval
Research under Grant No. N00014-09-1-0688, and by the U.S. Army Research
Laboratory and the U.S. Army Research Office under Grant No.
W911NF-07-1-0376. 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 29
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 0743-1619
BN 978-1-4244-7427-1
J9 P AMER CONTR CONF
PY 2010
BP 714
EP 719
PG 6
WC Automation & Control Systems; Engineering, Electrical & Electronic;
Engineering, Mechanical
SC Automation & Control Systems; Engineering
GA BTK95
UT WOS:000287187901016
ER
PT S
AU Hurni, MA
Sekhavat, P
Karpenko, M
Ross, IM
AF Hurni, Michael A.
Sekhavat, Pooya
Karpenko, Mark
Ross, I. Michael
GP IEEE
TI A Pseudospectral Optimal Motion Planner for Autonomous Unmanned Vehicles
SO 2010 AMERICAN CONTROL CONFERENCE
SE Proceedings of the American Control Conference
LA English
DT Proceedings Paper
CT American Control Conference
CY JUN 30-JUL 02, 2010
CL Baltimore, MD
AB This paper presents a pseudospectral (PS) optimal control algorithm for the autonomous motion planning of a fleet of unmanned ground vehicles (UGVs). The UGVs must traverse an obstacle-cluttered environment while maintaining robustness against possible collisions. The generality of the algorithm comes from a binary logic that modifies the cost function for various motion planning modes. Typical scenarios including path following and multi-vehicle pursuit are demonstrated. The proposed framework enables the availability of real-time information to be exploited by real-time reformulation of the optimal control problem combined with real-time computation. This allows the each vehicle to accommodate potential changes in the mission/environment and uncertain conditions. Experimental results are presented to substantiate the utility of the approach on a typical planning scenario.
C1 [Hurni, Michael A.] USN Acad, Dept Weap & Syst Engn, Annapolis, MD 21402 USA.
[Sekhavat, Pooya] Texas A&M Univ, Coll Stat, Dept Aerosp Engn, College Stn, TX 77843 USA.
[Karpenko, Mark; Ross, I. Michael] Naval Postgrad Sch, Dept Mech & Aeronaut Engn, Monterey, CA 93943 USA.
RP Hurni, MA (reprint author), USN Acad, Dept Weap & Syst Engn, Annapolis, MD 21402 USA.
EM hurni@usna.edu; psekhava@nps.edu; mkarpenk@nps.edu; imross@nps.edu
NR 28
TC 3
Z9 3
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 0743-1619
BN 978-1-4244-7427-1
J9 P AMER CONTR CONF
PY 2010
BP 1591
EP 1598
PG 8
WC Automation & Control Systems; Engineering, Electrical & Electronic;
Engineering, Mechanical
SC Automation & Control Systems; Engineering
GA BTK95
UT WOS:000287187901160
ER
PT S
AU Knauff, M
Dafis, C
Niebur, D
AF Knauff, Michael
Dafis, Chris
Niebur, Dagmar
GP IEEE
TI A New Battery Model For Use With An Extended Kalman Filter State Of
Charge Estimator
SO 2010 AMERICAN CONTROL CONFERENCE
SE Proceedings of the American Control Conference
LA English
DT Proceedings Paper
CT American Control Conference
CY JUN 30-JUL 02, 2010
CL Baltimore, MD
ID LEAD-ACID-BATTERIES; HYBRID-ELECTRIC VEHICLES; MANAGEMENT-SYSTEMS;
OF-CHARGE; PREDICTING STATE; PACKS
AB State of charge estimation based on the extended Kalman filter (EKF) has recently received attention for applications that apply rapidly changing current profiles to batteries such as in hybrid electric vehicles. A new battery model is proposed for use with such an estimator in an attempt to further improve its accuracy. The model is based on physical principles underlying the behavior of valve regulated lead acid batteries, taking into account nonlinearities that have been neglected in other models. The model is compared to a linear circuit model consisting of two parallel RC circuits, often used in EKF based state of charge estimation, demonstrating improvement in accuracy.
C1 [Knauff, Michael] Drexel Univ, Philadelphia, PA 19104 USA.
[Niebur, Dagmar] Drexel Univ, Natl Sci Fdn, Arlington, VA 22230 USA.
[Dafis, Chris] Naval Surface Warfare Ctr, Carderock Div, Philadelphia, PA 19112 USA.
RP Knauff, M (reprint author), Drexel Univ, Philadelphia, PA 19104 USA.
EM mykeknauff@yahoo.com
FU Office of Naval Research [N0014-W-1-0404]; NSF-Navy Civilian Service
(NNCS) Fellowship [0549139]
FX This work was supported in part by the Office of Naval Research Contract
Number N0014-W-1-0404 and the NSF-Navy Civilian Service (NNCS)
Fellowship-Scholarship Program #0549139.
NR 16
TC 1
Z9 1
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 0743-1619
BN 978-1-4244-7427-1
J9 P AMER CONTR CONF
PY 2010
BP 1991
EP 1996
PG 6
WC Automation & Control Systems; Engineering, Electrical & Electronic;
Engineering, Mechanical
SC Automation & Control Systems; Engineering
GA BTK95
UT WOS:000287187902064
ER
PT S
AU Hall, JS
Romano, M
Cristi, R
AF Hall, Jason S.
Romano, Marcello
Cristi, Roberto
GP IEEE
TI Quaternion Feedback Regulator for Large Angle Maneuvers of Underactuated
Spacecraft
SO 2010 AMERICAN CONTROL CONFERENCE
SE Proceedings of the American Control Conference
LA English
DT Proceedings Paper
CT American Control Conference
CY JUN 30-JUL 02, 2010
CL Baltimore, MD
ID RIGID SPACECRAFT; ATTITUDE STABILIZATION; BODY
AB A quaternion feedback regulator is developed to yield three-axis rate stabilization of an underactuated rigid spacecraft's attitude with two body-fixed control torques and arbitrary inertia matrix. Stable control is achieved by properly combining a generalized inverse component for feedback linearization and an auxiliary input to stabilize the underactuated system. The proposed control yields local stability within a domain of attraction through perturbed feedback linearization. The generalized inverse is damped near a bound on an inherent singularity to provide piecewise-smooth control. Numerical simulation results for a detumbling to a desired orientation maneuver are presented for an asymmetric spacecraft with two bounded body-fixed control torques to demonstrate the capability of the proposed attitude control method. Although this control method is not intended to provide attitude maintenance for attitude tracking or in the presence of relatively large disturbance torques, it may prove widely applicable for detumbling and reorientation maneuvers of spacecraft with only two available control torques.
C1 [Hall, Jason S.] SPAWAR Space Field Act, Chantilly, VA USA.
[Hall, Jason S.] US Navy, Postgrad Sch, Monterey, CA 93943 USA.
[Romano, Marcello] US Navy, Postgrad Sch, Dept Aerosp Engn & Mech, Monterey, CA 93943 USA.
[Cristi, Roberto] US Navy, Postgrad Sch, Dept Elect & Comp Engn, Monterey, CA 93943 USA.
RP Hall, JS (reprint author), SPAWAR Space Field Act, Chantilly, VA USA.
EM jasonshall@ymail.com; mromano@nps.edu; rcristi@nps.edu
NR 21
TC 5
Z9 6
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 0743-1619
BN 978-1-4244-7427-1
J9 P AMER CONTR CONF
PY 2010
BP 2867
EP 2872
PG 6
WC Automation & Control Systems; Engineering, Electrical & Electronic;
Engineering, Mechanical
SC Automation & Control Systems; Engineering
GA BTK95
UT WOS:000287187903042
ER
PT S
AU Kiriakidis, K
AF Kiriakidis, Kiriakos
GP IEEE
TI Identification of an Agent Interaction Network
SO 2010 AMERICAN CONTROL CONFERENCE
SE Proceedings of the American Control Conference
LA English
DT Proceedings Paper
CT American Control Conference
CY JUN 30-JUL 02, 2010
CL Baltimore, MD
AB Knowledge of some particular fact, subject, or event is conveyed among disparate agents affecting their respective activities and, in turn, the generation of new information. The author's main objective is to reconstruct the flow of information in the form of a weighted digraph, based on data that reflect agent activities. Embarking from the principles of maximum entropy, the author casts the digraph identification in the Bayesian estimation framework.
C1 USN Acad, Dept Syst Engn, Annapolis, MD 21402 USA.
RP Kiriakidis, K (reprint author), USN Acad, Dept Syst Engn, Annapolis, MD 21402 USA.
EM kiriakid@usna.edu
NR 6
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 0743-1619
BN 978-1-4244-7427-1
J9 P AMER CONTR CONF
PY 2010
BP 4076
EP 4077
PG 2
WC Automation & Control Systems; Engineering, Electrical & Electronic;
Engineering, Mechanical
SC Automation & Control Systems; Engineering
GA BTK95
UT WOS:000287187904077
ER
PT S
AU Esposito, JM
AF Esposito, Joel M.
GP IEEE
TI Decentralized Cooperative Manipulation with a Swarm of Mobile Robots:
the approach problem
SO 2010 AMERICAN CONTROL CONFERENCE
SE Proceedings of the American Control Conference
LA English
DT Proceedings Paper
CT American Control Conference
CY JUN 30-JUL 02, 2010
CL Baltimore, MD
ID OBJECTS; GRASPS; 3-D
AB In this paper we consider cooperative manipulation problems where a large group (swarm) of non-articulated mobile robots is trying to cooperatively control the velocity of some larger rigid body by exerting forces around its perimeter. We divide the problem into two phases: (1) approach; and (2) manipulation. This paper presents a novel decentralized solution to the approach phase. An artificial potential field is used to control the motion of the robots such that they establish contact with the object while avoiding collisions with other robots. The resulting grasp locally optimizes the group's ability to resist disturbances. The approach is provably convergent and does not require centralized coordination of the robots. The results are illustrated in simulation.
C1 USN Acad, Dept Syst Engn, Annapolis, MD 21402 USA.
RP Esposito, JM (reprint author), USN Acad, Dept Syst Engn, Annapolis, MD 21402 USA.
EM esposito@usna.edu
NR 26
TC 3
Z9 3
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 0743-1619
BN 978-1-4244-7427-1
J9 P AMER CONTR CONF
PY 2010
BP 4762
EP 4767
PG 6
WC Automation & Control Systems; Engineering, Electrical & Electronic;
Engineering, Mechanical
SC Automation & Control Systems; Engineering
GA BTK95
UT WOS:000287187905027
ER
PT J
AU Bewley, WW
Canedy, CL
Kim, CS
Kim, M
Lindle, JR
Abell, J
Vurgaftman, I
Meyer, JR
AF Bewley, W. W.
Canedy, C. L.
Kim, C. S.
Kim, M.
Lindle, J. R.
Abell, J.
Vurgaftman, I.
Meyer, J. R.
GP IEEE
TI Corrugated-Sidewall Distributed-Feedback Interband Cascade Lasers
Emitting High Single-Mode Powers
SO 2010 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO) AND QUANTUM
ELECTRONICS AND LASER SCIENCE CONFERENCE (QELS)
LA English
DT Proceedings Paper
CT Conference on Lasers and Electro-Optics (CLEO)/Quantum Electronics and
Laser Science Conference (QELS)
CY MAY 16-21, 2010
CL San Jose, CA
AB We report corrugated-sidewall distributed-feedback interband cascade lasers that produce 45 mW of cw power in a single spectral mode at -20 degrees C, with maximum wall-plug efficiency of 7.6%. The current tuning range (0-25 degrees C) is 11 nm. (C) 2010 Optical Society of America
C1 [Bewley, W. W.; Canedy, C. L.; Kim, C. S.; Kim, M.; Lindle, J. R.; Abell, J.; Vurgaftman, I.; Meyer, J. R.] USN, Res Lab, Washington, DC 20375 USA.
RP Bewley, WW (reprint author), USN, Res Lab, Code 5613, Washington, DC 20375 USA.
NR 3
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-55752-890-2
PY 2010
PG 2
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BUW45
UT WOS:000290513601215
ER
PT J
AU Bowman, SR
Condon, NJ
O'Connor, S
AF Bowman, Steven R.
Condon, Nicholas J.
O'Connor, Shawn
GP IEEE
TI Dynamics of an Erbium Mid-IR Laser
SO 2010 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO) AND QUANTUM
ELECTRONICS AND LASER SCIENCE CONFERENCE (QELS)
LA English
DT Proceedings Paper
CT Conference on Lasers and Electro-Optics (CLEO)/Quantum Electronics and
Laser Science Conference (QELS)
CY MAY 16-21, 2010
CL San Jose, CA
ID ABSORPTION; CRYSTALS; KPB2CL5; GROWTH
AB A room temperature 4.5 mu m laser is reported in Er:KPb(2)Cl(5) crystals using 0.8 mu m diode excitation. Long fluorescent lifetimes lead to important ETU and ESA processes. The impact of these excitation channels on laser performance is assessed. (C) 2010 Optical Society of America
C1 [Bowman, Steven R.; Condon, Nicholas J.; O'Connor, Shawn] USN, Res Lab, Washington, DC 20375 USA.
RP Bowman, SR (reprint author), USN, Res Lab, Code 5624,4555 Overlook Ave SW, Washington, DC 20375 USA.
EM Steven.Bowman@nrl.navy.mil
NR 7
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-55752-890-2
PY 2010
PG 2
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BUW45
UT WOS:000290513600175
ER
PT J
AU Dekker, S
Xiong, C
Magi, E
Judge, AC
Sanghera, JS
Shaw, LB
Aggarwal, ID
Moss, DJ
Eggleton, BJ
AF Dekker, S.
Xiong, C.
Magi, E.
Judge, A. C.
Sanghera, J. S.
Shaw, L. B.
Aggarwal, I. D.
Moss, D. J.
Eggleton, B. J.
GP IEEE
TI Broadband Low Power Super-continuum Generation in As2S3Chalcogenide
Glass Fiber Nanotapers
SO 2010 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO) AND QUANTUM
ELECTRONICS AND LASER SCIENCE CONFERENCE (QELS)
LA English
DT Proceedings Paper
CT Conference on Lasers and Electro-Optics (CLEO)/Quantum Electronics and
Laser Science Conference (QELS)
CY MAY 16-21, 2010
CL San Jose, CA
ID SUPERCONTINUUM GENERATION
AB We demonstrate broadband low power supercontinuum generation in arsenic sulphide (As2S3) tapered fiber nanowires with an effective area similar to 0.8 mu m(2) and nonlinearity gamma = 12,400 W-1 km(-1). Simulations showed good agreement between theory and experiment. (C) 2010 Optical Society of America
C1 [Dekker, S.; Xiong, C.; Magi, E.; Judge, A. C.; Moss, D. J.; Eggleton, B. J.] Univ Sydney, Ctr Ultrahigh Bandwidth Devices Opt Syst CUDOS, Sch Phys, Sydney, NSW 2006, Australia.
[Sanghera, J. S.; Shaw, L. B.; Aggarwal, I. D.] Naval Res Lab, Washington, DC 20375 USA.
RP Dekker, S (reprint author), Univ Sydney, Ctr Ultrahigh Bandwidth Devices Opt Syst CUDOS, Sch Phys, Sydney, NSW 2006, Australia.
EM sdekker@physics.usyd.edu.au
RI moss, david/B-8721-2011
NR 6
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-55752-890-2
PY 2010
PG 2
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BUW45
UT WOS:000290513600278
ER
PT J
AU Holmstrom, SA
Stievater, TH
Pruessner, MW
Park, D
Rabinovich, WS
Kanakaraju, S
Richardson, CJK
Khurgin, JB
AF Holmstrom, S. A.
Stievater, T. H.
Pruessner, M. W.
Park, D.
Rabinovich, W. S.
Kanakaraju, S.
Richardson, C. J. K.
Khurgin, J. B.
GP IEEE
TI The Guided-Mode Phonon-Polariton in Suspended Waveguides
SO 2010 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO) AND QUANTUM
ELECTRONICS AND LASER SCIENCE CONFERENCE (QELS)
LA English
DT Proceedings Paper
CT Conference on Lasers and Electro-Optics (CLEO)/Quantum Electronics and
Laser Science Conference (QELS)
CY MAY 16-21, 2010
CL San Jose, CA
AB Using Raman scattering measurements in suspended semiconductor waveguides coupled with finite element analysis, we elucidate the properties of the guided mode phonon-polariton, which plays a critical role in many current terahertz generation approaches. (C) 2008 Optical Society of America
C1 [Holmstrom, S. A.] Univ Tulsa, Tulsa, OK 74104 USA.
[Stievater, T. H.; Pruessner, M. W.; Park, D.; Rabinovich, W. S.] Naval Res Lab, Washington, DC 20375 USA.
[Kanakaraju, S.; Richardson, C. J. K.] Lab Phys Sci, College Pk, MD 20740 USA.
[Khurgin, J. B.] Johns Hopkins Univ, Baltimore, MD 21218 USA.
RP Holmstrom, SA (reprint author), Univ Tulsa, Tulsa, OK 74104 USA.
EM scott-holmstrom@utulsa.edu
NR 2
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-55752-890-2
PY 2010
PG 2
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BUW45
UT WOS:000290513603146
ER
PT J
AU Hou, B
Nees, J
Easter, J
He, Z
Davis, J
Petrov, G
Thomas, A
Krushelnick, K
AF Hou, B.
Nees, J.
Easter, J.
He, Z.
Davis, J.
Petrov, G.
Thomas, A.
Krushelnick, K.
GP IEEE
TI MeV Proton Beams Generated by 3 mJ Ultrafast Laser Pulses at 0.5 kHz
SO 2010 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO) AND QUANTUM
ELECTRONICS AND LASER SCIENCE CONFERENCE (QELS)
LA English
DT Proceedings Paper
CT Conference on Lasers and Electro-Optics (CLEO)/Quantum Electronics and
Laser Science Conference (QELS)
CY MAY 16-21, 2010
CL San Jose, CA
AB Well-collimated proton beams are generated from bulk glass along the target normal direction by tightly focused 3mJ ultrafast laser pulses at intensities of 2x10(18)W/cm(2) at 0.5kHz. Spectral measurements indicate maximum proton energy is around 0.5MeV. (C)2010 Optical Society of America
C1 [Hou, B.; Nees, J.; Easter, J.; He, Z.; Thomas, A.; Krushelnick, K.] Univ Michigan, Ctr Ultrafast Opt Sci, 2200 Bonisteel Blvd, Ann Arbor, MI 48109 USA.
[Davis, J.; Petrov, G.] Plasma Phys div, Naval Res Lab, Washington, DC 20375 USA.
RP Hou, B (reprint author), Univ Michigan, Ctr Ultrafast Opt Sci, 2200 Bonisteel Blvd, Ann Arbor, MI 48109 USA.
EM houbx@eecs.umich.edu
RI Nees, John/P-4905-2016
OI Nees, John/0000-0001-8277-9123
NR 4
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-55752-890-2
PY 2010
PG 2
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BUW45
UT WOS:000290513602044
ER
PT J
AU Karaiskaj, D
Moody, G
Bristow, AD
Siemens, ME
Dai, X
Bracker, AS
Gammon, D
Cundiff, ST
AF Karaiskaj, D.
Moody, G.
Bristow, A. D.
Siemens, M. E.
Dai, X.
Bracker, A. S.
Gammon, D.
Cundiff, S. T.
GP IEEE
TI Homogeneous Linewidth Temperature Dependence of Interfacial GaAs Quantum
Dots Studied with Optical 2D Fourier-Transform Spectroscopy
SO 2010 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO) AND QUANTUM
ELECTRONICS AND LASER SCIENCE CONFERENCE (QELS)
LA English
DT Proceedings Paper
CT Conference on Lasers and Electro-Optics (CLEO)/Quantum Electronics and
Laser Science Conference (QELS)
CY MAY 16-21, 2010
CL San Jose, CA
AB Optical 2D Fourier-transform spectroscopy extracts the temperature-dependent homogeneous lineshape of an ensemble of interfacial quantum dots. The asymmetric lineshape reveals that confinement and excitation-induced dephasing compete with strong exciton-phonon interactions, which dominate at higher temperature. (C)2010 Optical Society of America
C1 [Karaiskaj, D.; Moody, G.; Bristow, A. D.; Siemens, M. E.; Dai, X.; Cundiff, S. T.] Natl Inst Stand & Technol, JILA, 325 Broadway, Boulder, CO 80309 USA.
[Karaiskaj, D.] Univ S Florida, Tampa, FL 33620 USA.
[Moody, G.; Cundiff, S. T.] Univ Colorado, Dept Phys, Boulder, CO 80309 USA.
[Bracker, A. S.; Gammon, D.] Naval Res Lab, Washington, DC 20375 USA.
RP Karaiskaj, D (reprint author), Natl Inst Stand & Technol, JILA, 325 Broadway, Boulder, CO 80309 USA.
EM karaiskaj@cas.usf.edu
RI Bristow, Alan/F-9703-2013; Cundiff, Steven/B-4974-2009; Moody,
Galan/J-5811-2014
OI Cundiff, Steven/0000-0002-7119-5197; Moody, Galan/0000-0001-7263-1483
NR 3
TC 0
Z9 0
U1 0
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-55752-890-2
PY 2010
PG 2
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BUW45
UT WOS:000290513603019
ER
PT J
AU Kim, ED
Truex, K
Xu, XD
Sun, B
Steel, DG
Bracker, AS
Gammon, D
Sham, LJ
AF Kim, Erik D.
Truex, Katherine
Xu, Xiaodong
Sun, Bo
Steel, D. G.
Bracker, A. S.
Gammon, D.
Sham, L. J.
GP IEEE
TI A Spin Phase Gate Based on Optically Generated Geometric Phases in a
Self-Assembled Quantum Dot
SO 2010 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO) AND QUANTUM
ELECTRONICS AND LASER SCIENCE CONFERENCE (QELS)
LA English
DT Proceedings Paper
CT Conference on Lasers and Electro-Optics (CLEO)/Quantum Electronics and
Laser Science Conference (QELS)
CY MAY 16-21, 2010
CL San Jose, CA
AB We demonstrate the use of optically generated geometric phases to modify the phase of one of the spin states of an electron confined in an InAs quantum dot, effectively executing a spin phase gate. (C) 2009 Optical Society of America
C1 [Kim, Erik D.; Truex, Katherine; Xu, Xiaodong; Sun, Bo; Steel, D. G.] Univ Michigan, HM Randall Lab, Ann Arbor, MI 48109 USA.
[Bracker, A. S.; Gammon, D.] Naval Res Lab, Washington, DC 20375 USA.
[Sham, L. J.] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA.
RP Kim, ED (reprint author), Univ Michigan, HM Randall Lab, Ann Arbor, MI 48109 USA.
EM dst@eecs.umich.edu; gammon@nrl.navy.mil; lsham@ucsd.edu
FU ARO; NSA/LPS; ONR; NSF; AFOSR; IARPA; DARPA
FX This work was supported in part by ARO, NSA/LPS, ONR, NSF, AFOSR, IARPA
and DARPA.
NR 9
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-55752-890-2
PY 2010
PG 2
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BUW45
UT WOS:000290513603015
ER
PT J
AU Moody, G
Siemens, ME
Bristow, AD
Dai, X
Bracker, AS
Gammon, D
Cundiff, ST
AF Moody, G.
Siemens, M. E.
Bristow, A. D.
Dai, X.
Bracker, A. S.
Gammon, D.
Cundiff, S. T.
GP IEEE
TI Temperature-Dependent Coupling of GaAs Quantum Well and Interfacial
Quantum Dots Studied with Optical 2D Fourier-Transform Spectroscopy
SO 2010 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO) AND QUANTUM
ELECTRONICS AND LASER SCIENCE CONFERENCE (QELS)
LA English
DT Proceedings Paper
CT Conference on Lasers and Electro-Optics (CLEO)/Quantum Electronics and
Laser Science Conference (QELS)
CY MAY 16-21, 2010
CL San Jose, CA
AB Optical 2D Fourier-transform spectra reveal time and temperature dependent relaxation from GaAs quantum well states into the interfacial quantum dot ensemble. We attribute the increased rate of relaxation at higher temperature to stimulated phonon emission. (C)2010 Optical Society of America
C1 [Moody, G.; Siemens, M. E.; Bristow, A. D.; Dai, X.; Cundiff, S. T.] JILA, NIST, Boulder, CO 80309 USA.
[Moody, G.; Cundiff, S. T.] Univ Colorado, Dept Phys, Boulder, CO 80309 USA.
[Bracker, A. S.; Gammon, D.] Naval Res Lab, Washington, DC 20375 USA.
RP Moody, G (reprint author), JILA, NIST, Boulder, CO 80309 USA.
EM cundiff@jila.colorado.edu
RI Bristow, Alan/F-9703-2013; Moody, Galan/J-5811-2014
OI Moody, Galan/0000-0001-7263-1483
NR 3
TC 0
Z9 0
U1 0
U2 3
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-55752-890-2
PY 2010
PG 2
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BUW45
UT WOS:000290513603043
ER
PT J
AU Pruessner, MW
Stievater, TH
Rabinovich, WS
AF Pruessner, Marcel W.
Stievater, Todd H.
Rabinovich, William S.
GP IEEE
TI Optical Micromechanical Amplification and Damping in a Waveguide
Microcavity
SO 2010 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO) AND QUANTUM
ELECTRONICS AND LASER SCIENCE CONFERENCE (QELS)
LA English
DT Proceedings Paper
CT Conference on Lasers and Electro-Optics (CLEO)/Quantum Electronics and
Laser Science Conference (QELS)
CY MAY 16-21, 2010
CL San Jose, CA
AB We demonstrate resonant amplification and damping in an integrated micromechanical resonator coupled to a waveguide Fabry-Perot microcavity. By varying the laser power and wavelength, the effective mechanical Q-factor (Q(0) = 2.5x10(4)) is varied from 9.8x10(3) to 4.9x10(5). (C) 2010 Optical Society of America
C1 [Pruessner, Marcel W.; Stievater, Todd H.; Rabinovich, William S.] USN, Res Lab, Washington, DC 20375 USA.
RP Pruessner, MW (reprint author), USN, Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA.
NR 8
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-55752-890-2
PY 2010
PG 2
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BUW45
UT WOS:000290513600408
ER
PT J
AU Reitzenstein, S
Munch, S
Franeck, P
Rahimi-Iman, A
Heindel, T
Loffler, A
Hofling, S
Worschech, L
Forchel, A
Ponomarev, IV
Reinecke, TL
AF Reitzenstein, S.
Muench, S.
Franeck, P.
Rahimi-Iman, A.
Heindel, T.
Loeffler, A.
Hoefling, S.
Worschech, L.
Forchel, A.
Ponomarev, I. V.
Reinecke, T. L.
GP IEEE
TI Magneto-Optical Cavity Quantum Electrodynamics Effects in Quantum Dot
Micropillar Systems
SO 2010 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO) AND QUANTUM
ELECTRONICS AND LASER SCIENCE CONFERENCE (QELS)
LA English
DT Proceedings Paper
CT Conference on Lasers and Electro-Optics (CLEO)/Quantum Electronics and
Laser Science Conference (QELS)
CY MAY 16-21, 2010
CL San Jose, CA
AB We report on magneto-optical control of quantum dot micropillar systems in the strong coupling regime. Magneto-optical resonance tuning, magnetic field control of the oscillator strength and spin cQED-effects will be presented. (C) 2009 Optical Society of America
C1 [Reitzenstein, S.; Muench, S.; Franeck, P.; Rahimi-Iman, A.; Heindel, T.; Loeffler, A.; Hoefling, S.; Worschech, L.; Forchel, A.] Univ Wurzburg, D-97074 Wurzburg, Germany.
[Ponomarev, I. V.; Reinecke, T. L.] Naval Res Lab, Washington, DC 20375 USA.
RP Reitzenstein, S (reprint author), Univ Wurzburg, D-97074 Wurzburg, Germany.
EM stephan.reitzenstein@physik.uni-wuerzburg.de
RI Ponomarev, Ilya/F-5183-2010
OI Ponomarev, Ilya/0000-0002-8584-6034
FU DFG via the research group; BMBF through the project "NanoQuit"; State
of Bavaria
FX This work was supported by the DFG via the research group Quantum Optics
in Semiconductor Nanostructures, the BMBF through the project NanoQuit
and the State of Bavaria.
NR 6
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-55752-890-2
PY 2010
PG 2
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BUW45
UT WOS:000290513603209
ER
PT J
AU Tsai, TR
Trofimov, I
Heaps, CW
Maiorov, M
Zeidel, V
Kim, CS
Kim, M
Canedy, CL
Bewley, WW
Lindle, JR
Vurgaftman, I
Meyer, JR
Wysocki, G
AF Tsai, Tracy R.
Trofimov, Igor
Heaps, Charles W.
Maiorov, Mikhail
Zeidel, Vladimir
Kim, Chul Soo
Kim, Mijin
Canedy, Chadwick L.
Bewley, William W.
Lindle, J. Ryan
Vurgaftman, Igor
Meyer, Jerry R.
Wysocki, Gerard
GP IEEE
TI Widely Tunable External Cavity Interband Cascade Laser for Spectroscopic
Applications
SO 2010 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO) AND QUANTUM
ELECTRONICS AND LASER SCIENCE CONFERENCE (QELS)
LA English
DT Proceedings Paper
CT Conference on Lasers and Electro-Optics (CLEO)/Quantum Electronics and
Laser Science Conference (QELS)
CY MAY 16-21, 2010
CL San Jose, CA
AB We performed spectroscopy of methane using a broadly tunable external cavity interband cascade laser (EC-ICL). A miniaturized EC-ICL design for field applications, with improved anti-reflection and high-reflection coatings and new EC tuning mechanism, is presented. (C)2010 Optical Society of America
C1 [Tsai, Tracy R.; Heaps, Charles W.; Wysocki, Gerard] Princeton Univ, Dept Elect Engn, Princeton, NJ 08544 USA.
[Trofimov, Igor; Maiorov, Mikhail; Zeidel, Vladimir] AKELA Laser Corp, Jamesburg, NJ 08852 USA.
[Kim, Chul Soo; Kim, Mijin; Canedy, Chadwick L.; Bewley, William W.; Lindle, J. Ryan; Vurgaftman, Igor; Meyer, Jerry R.] Naval Res Lab, Washington, DC USA.
RP Tsai, TR (reprint author), Princeton Univ, Dept Elect Engn, Princeton, NJ 08544 USA.
EM gwysocki@princeton.edu
FU MIRTHE NSF Engineering Research Center; Aerodyne Research Inc.
FX Financial support was provided by the MIRTHE NSF Engineering Research
Center and a sub-award from a DoE STTR grant from Aerodyne Research Inc.
NR 5
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-55752-890-2
PY 2010
PG 2
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BUW45
UT WOS:000290513601086
ER
PT J
AU Weiblen, RJ
Hu, J
Menyuk, CR
Shaw, LB
Sanghera, JS
Aggarwal, ID
AF Weiblen, R. J.
Hu, J.
Menyuk, C. R.
Shaw, L. B.
Sanghera, J. S.
Aggarwal, I. D.
GP IEEE
TI Maximizing the Supercontinuum Bandwidth in As2S3 Chalcogenide Photonic
Crystal Fibers
SO 2010 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO) AND QUANTUM
ELECTRONICS AND LASER SCIENCE CONFERENCE (QELS)
LA English
DT Proceedings Paper
CT Conference on Lasers and Electro-Optics (CLEO)/Quantum Electronics and
Laser Science Conference (QELS)
CY MAY 16-21, 2010
CL San Jose, CA
AB We simulate supercontinuum generation in an As2S3 chalcogenide photonic crystal fiber with a hexagonal structure, optimizing the fiber pitch and pulse duration with a 2.8 mu m laser source in order to maximize the output bandwidth. (C)2010 Optical Society of America
C1 [Weiblen, R. J.; Hu, J.; Menyuk, C. R.] Univ Maryland Baltimore Cty, Dept Comp Sci & Elect Engn, TRC205A, 1000 Hilltop Circle, Baltimore, MD 21250 USA.
[Shaw, L. B.; Sanghera, J. S.; Aggarwal, I. D.] Naval Res Lab, Washington, DC 20375 USA.
RP Weiblen, RJ (reprint author), Univ Maryland Baltimore Cty, Dept Comp Sci & Elect Engn, TRC205A, 1000 Hilltop Circle, Baltimore, MD 21250 USA.
EM ro2@umbc.edu
NR 5
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-55752-890-2
PY 2010
PG 2
WC Engineering, Electrical & Electronic; Optics; Physics, Applied
SC Engineering; Optics; Physics
GA BUW45
UT WOS:000290513601417
ER
PT J
AU Gliese, U
Colladay, K
Hastings, AS
Tulchinsky, DA
Urick, VJ
Williams, KJ
AF Gliese, Ulrik
Colladay, Kristina
Hastings, Alexander S.
Tulchinsky, David A.
Urick, Vincent J.
Williams, Keith J.
GP IEEE
TI 53.5 % Photodiode RF Power Conversion Efficiency
SO 2010 CONFERENCE ON OPTICAL FIBER COMMUNICATION OFC COLLOCATED NATIONAL
FIBER OPTIC ENGINEERS CONFERENCE OFC-NFOEC
LA English
DT Proceedings Paper
CT Conference on Optical Fiber Communication (OFC)/Collocated National
Fiber Optic Engineers (NFOEC)
CY MAR 21-25, 2010
CL San Diego, CA
ID PHOTODETECTORS
AB A record 53.5 % RF power conversion efficiency is reported for a photodiode delivering 24.4 dBm output power. This is achieved by optimized photodiode design, optical intensity-envelope shaping with a Mach-Zehnder modulator and photodiode signal compression. (C) 2010 Optical Society of America
C1 [Gliese, Ulrik] SGT, Lanham, MD 20706 USA.
[Colladay, Kristina] Global Strateg Grp, Crofton, MD 21114 USA.
[Hastings, Alexander S.; Tulchinsky, David A.; Urick, Vincent J.; Williams, Keith J.] US Naval Acad, Res Lab, Washington, DC 20375 USA.
RP Gliese, U (reprint author), SGT, Lanham, MD 20706 USA.
EM ulrik.gliese@nasa.gov
NR 9
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-55752-884-1
PY 2010
PG 3
WC Engineering, Electrical & Electronic; Optics; Telecommunications
SC Engineering; Optics; Telecommunications
GA BTO65
UT WOS:000287574100631
ER
PT J
AU Pejic, D
Urekar, M
Vujicic, V
Avramov-Zamurovic, S
AF Pejic, Dragan
Urekar, Marjan
Vujicic, Vladimir
Avramov-Zamurovic, Svetlana
GP IEEE
TI COMPARATOR OFFSET ERROR SUPPRESSION IN STOCHASTIC CONVERTERS USED IN A
WATT-HOUR METER
SO 2010 CONFERENCE ON PRECISION ELECTROMAGNETIC MEASUREMENTS CPEM
LA English
DT Proceedings Paper
CT 2010 Conference on Precision Electromagnetic Measurements
CY JUN 13-18, 2010
CL Daejeon, SOUTH KOREA
SP IEEE
ID QUANTIZED HALL RESISTANCE
AB The paper presents a method of suppressing offset induced error in comparators used in stochastic converters. A stochastic converter has two analog voltage inputs, and the output is proportional to the integral of input product. This converter is used to build a precision watt-hour meter prototype at University of Novi Sad. A stochastic method uses a high oversampling frequency and fast, off-the-shelf commercial comparators. These comparators have relatively large offset, but we show that it does not affect the quality of measurement. Mathematical theory, simulation and testing results are presented. The results show offset error reduction up to three orders of magnitude.
C1 [Pejic, Dragan; Urekar, Marjan; Vujicic, Vladimir] Univ Novi Sad, Fac Tech Sci, Novi Sad 21000, Serbia.
[Avramov-Zamurovic, Svetlana] US Naval Acad, Annapolis, MD USA.
RP Pejic, D (reprint author), Univ Novi Sad, Fac Tech Sci, Novi Sad 21000, Serbia.
EM pejicdra@uns.ac.rs
NR 4
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4244-6794-5
PY 2010
BP 235
EP +
PG 2
WC Engineering, Electrical & Electronic; Instruments & Instrumentation
SC Engineering; Instruments & Instrumentation
GA BTO48
UT WOS:000287511200120
ER
PT J
AU Avramov-Zamurovic, S
Dagalakis, NG
Lee, RD
Kim, YS
Yoo, JM
Yang, SH
AF Avramov-Zamurovic, Svetlana
Dagalakis, Nicholas G.
Lee, Rae Duk
Kim, Yong Sik
Yoo, Jae Myung
Yang, Seung Ho
GP IEEE
TI Embedded Capacitive Displacement Sensor for Nanopositioning Applications
SO 2010 CONFERENCE ON PRECISION ELECTROMAGNETIC MEASUREMENTS CPEM
LA English
DT Proceedings Paper
CT 2010 Conference on Precision Electromagnetic Measurements
CY JUN 13-18, 2010
CL Daejeon, SOUTH KOREA
SP IEEE
AB The scale of nano objects requires very precise position determination. The state-of-the-art manipulators involve accurate nanometer positioning. This paper presents the design of a capacitive displacement sensor for a nanopositioning application. The challenges of designing a capacitor sensitive to nanometer movements that fits in the area of a few hundred square micrometers are described. Analysis of several different designs was carried out using commercial simulation software. Results suggest a sensing resolution of 10 nm displacement. A sensor prototype was fabricated and tested.
C1 [Avramov-Zamurovic, Svetlana] USN Acad, Annapolis, MD 21402 USA.
[Dagalakis, Nicholas G.; Lee, Rae Duk; Kim, Yong Sik; Yoo, Jae Myung; Yang, Seung Ho] Natl Inst Stand & Technol, Gaithersburg, MD 20899 USA.
RP Avramov-Zamurovic, S (reprint author), USN Acad, Annapolis, MD 21402 USA.
EM avramov@usna.edu
NR 4
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4244-6794-5
PY 2010
BP 316
EP +
PG 2
WC Engineering, Electrical & Electronic; Instruments & Instrumentation
SC Engineering; Instruments & Instrumentation
GA BTO48
UT WOS:000287511200161
ER
PT S
AU Sonmezer, V
Tummala, M
McEachen, J
Adams, A
AF Soenmezer, Volkan
Tummala, Murali
McEachen, John
Adams, Agur
BE Matthews, MB
TI Cooperative Wideband Spectrum Sensing Using Radio Frequency Sensor
Networks
SO 2010 CONFERENCE RECORD OF THE FORTY FOURTH ASILOMAR CONFERENCE ON
SIGNALS, SYSTEMS AND COMPUTERS (ASILOMAR)
SE Conference Record of the Asilomar Conference on Signals Systems and
Computers
LA English
DT Proceedings Paper
CT 44th Asilomar Conference on Signals, Systems and Computers
CY NOV 07-10, 2010
CL Pacific Grove, CA
SP IEEE, IEEE Signal Proc Soc
AB This paper implements spectrum sensing using a radio frequency sensor network and analyzes the performance of this implementation through simulation. A sensor network based cooperative wideband spectrum sensing scheme is proposed for the implementation of this task. In the proposed scheme, wavelet-based multi-resolution spectrum sensing, which was originally proposed for cognitive radio applications, is adapted to radio frequency sensor networks. For cooperation of the nodes in the proposed scheme, a new three-bit hard combination technique is developed. A simulation model is created in MATLAB programming language to implement the proposed scheme and to analyze its simulation performance. The results of the simulation show that the proposed sensor network based cooperative wideband spectrum sensing scheme is appropriate for radio frequency sensor networks and the proposed three-bit hard combination scheme is superior to the traditional hard combination schemes in terms of false alarm reduction.
C1 [Soenmezer, Volkan; Tummala, Murali; McEachen, John; Adams, Agur] USN, Dept Elect & Comp Engn, Postgrad Sch, Monterey, CA 93943 USA.
RP Sonmezer, V (reprint author), USN, Dept Elect & Comp Engn, Postgrad Sch, Monterey, CA 93943 USA.
NR 5
TC 1
Z9 1
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1058-6393
BN 978-1-4244-9721-8
J9 CONF REC ASILOMAR C
PY 2010
BP 951
EP 955
PG 5
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA BAW92
UT WOS:000305886000177
ER
PT S
AU De Villar, JA
Ives, RW
Matey, JR
AF De Villar, Justin A.
Ives, Robert W.
Matey, James R.
BE Matthews, MB
TI Design and Implementation of a Long Range Iris Recognition System
SO 2010 CONFERENCE RECORD OF THE FORTY FOURTH ASILOMAR CONFERENCE ON
SIGNALS, SYSTEMS AND COMPUTERS (ASILOMAR)
SE Conference Record of the Asilomar Conference on Signals Systems and
Computers
LA English
DT Proceedings Paper
CT 44th Asilomar Conference on Signals, Systems and Computers
CY NOV 07-10, 2010
CL Pacific Grove, CA
SP IEEE, IEEE Signal Proc Soc
AB Iris recognition is widely regarded as one of the most unique methods for subject identification. The practical application of iris recognition is primarily limited by constraints imposed on subjects to enable the collection of images of sufficient quality for recognition. This paper introduces the Iris-at-a-Distance (IAAD) system. The IAAD system is a prototype that illustrates the feasibility of iris recognition at a distance of 30 meters. The system uses a wide-field-of-view camera to locate a subject via face and eye detection. A narrow-field-of-view camera, attached to an 8-inch telescope, is then pointed to the first detected eye. Images taken from the iris acquisition camera are then processed for identification. This system acquires iris images from a subject within the capture volume in an average of four seconds.
C1 [De Villar, Justin A.] USN, Postgrad Sch, Stennis Space Ctr, MS 39529 USA.
[Ives, Robert W.; Matey, James R.] US Naval Acad, Annapolis, MD 21402 USA.
RP De Villar, JA (reprint author), USN, Postgrad Sch, Stennis Space Ctr, MS 39529 USA.
EM jadevill@nps.edu; ives@usna.edu; matey@usna.edu
RI Matey, James/B-4372-2013
OI Matey, James/0000-0002-0508-785X
FU Department of Defense; IRB protocol [USNA.2008.0052-CR01-EP6-A]
FX This research has been funded in part by the Department of Defense. The
research was conducted under an approved IRB protocol,
USNA.2008.0052-CR01-EP6-A.
NR 10
TC 2
Z9 2
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1058-6393
BN 978-1-4244-9721-8
J9 CONF REC ASILOMAR C
PY 2010
BP 1770
EP 1773
PG 4
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA BAW92
UT WOS:000305886000328
ER
PT S
AU Shafer, JL
Ngo, H
Ives, RW
AF Shafer, Jennifer L.
Hau Ngo
Ives, Robert W.
BE Matthews, MB
TI Using an FPGA to Accelerate Pupil Isolation in Iris Recognition
SO 2010 CONFERENCE RECORD OF THE FORTY FOURTH ASILOMAR CONFERENCE ON
SIGNALS, SYSTEMS AND COMPUTERS (ASILOMAR)
SE Conference Record of the Asilomar Conference on Signals Systems and
Computers
LA English
DT Proceedings Paper
CT 44th Asilomar Conference on Signals, Systems and Computers
CY NOV 07-10, 2010
CL Pacific Grove, CA
SP IEEE, IEEE Signal Proc Soc
AB Iris recognition is an important application in the Department of Defense and the Department of Homeland Security. An algorithm that is both accurate and fast in a hardware design that is small and transportable are crucial to the implementation of this tool. As part of an ongoing effort to meet these criteria, this paper improves a segment of the US Naval Academy's RED iris recognition algorithm, namely pupil isolation. We show a significant speed-up of pupil isolation by implementing this portion of the algorithm on a Field Programmable Gate Array (FPGA).
C1 [Shafer, Jennifer L.; Hau Ngo; Ives, Robert W.] USN Acad, Dept Elect & Comp Engn, Annapolis, MD 21402 USA.
RP Shafer, JL (reprint author), USN Acad, Dept Elect & Comp Engn, Annapolis, MD 21402 USA.
NR 5
TC 2
Z9 2
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1058-6393
BN 978-1-4244-9721-8
J9 CONF REC ASILOMAR C
PY 2010
BP 1774
EP 1777
PG 4
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA BAW92
UT WOS:000305886000329
ER
PT S
AU Rogers, JS
Krolik, JL
AF Rogers, Jeffrey S.
Krolik, Jeffrey L.
BE Matthews, MB
TI An Online Method for Time-varying Spatial Spectrum Estimation using a
Towed Acoustic Array
SO 2010 CONFERENCE RECORD OF THE FORTY FOURTH ASILOMAR CONFERENCE ON
SIGNALS, SYSTEMS AND COMPUTERS (ASILOMAR)
SE Conference Record of the Asilomar Conference on Signals Systems and
Computers
LA English
DT Proceedings Paper
CT 44th Asilomar Conference on Signals, Systems and Computers
CY NOV 07-10, 2010
CL Pacific Grove, CA
SP IEEE, IEEE Signal Proc Soc
ID LOCALIZATION
AB This paper addresses the problem of time-varying field directionality mapping (FDM) or spatial spectrum estimation in dynamic environments with a maneuverable towed acoustic array. Array processing algorithms for towed arrays are typically designed assuming the array is straight, and are thus degraded during tow ship maneuvers. In this paper, maneuvering the array is treated as a feature allowing for left and right disambiguation as well as improved resolution towards endfire. A new method for online spatial spectrum estimation is presented. The maximum likelihood of the time-varying field is solved for using a single expectation maximization step after each received data snapshot. A multi-source simulation is used to illustrate the proposed algorithm's ability to suppress ambiguous towed-array backlobes and resolve closely spaced interferers near endfire which pose challenges for conventional beamforming approaches, especially during array maneuvers.
C1 [Rogers, Jeffrey S.] USN, Acoust Div, Res Lab, Washington, DC 20375 USA.
[Krolik, Jeffrey L.] Duke Univ, Dept Elect & Comp Engn, Durham, NC 27708 USA.
RP Rogers, JS (reprint author), USN, Acoust Div, Res Lab, Washington, DC 20375 USA.
FU ONR [N000140810947]
FX This work was supported by ONR under grant N000140810947.
NR 10
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1058-6393
BN 978-1-4244-9721-8
J9 CONF REC ASILOMAR C
PY 2010
BP 1837
EP 1841
PG 5
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA BAW92
UT WOS:000305886000341
ER
PT S
AU Wagner, KT
Doroslovacki, MI
AF Wagner, Kevin T.
Doroslovacki, Milos I.
BE Matthews, MB
TI PtNLMS ALGORITHM OBTAINED BY MINIMIZATION OF MEAN SQUARE ERROR MODELED
BY EXPONENTIAL FUNCTIONS
SO 2010 CONFERENCE RECORD OF THE FORTY FOURTH ASILOMAR CONFERENCE ON
SIGNALS, SYSTEMS AND COMPUTERS (ASILOMAR)
SE Conference Record of the Asilomar Conference on Signals Systems and
Computers
LA English
DT Proceedings Paper
CT 44th Asilomar Conference on Signals, Systems and Computers
CY NOV 07-10, 2010
CL Pacific Grove, CA
SP IEEE, IEEE Signal Proc Soc
AB Using the proportionate-type steepest descent algorithm we represent the current weight deviations in terms of initial weight deviations. Then we attempt to minimize the mean square output error with respect to the gains at a given instant. The corresponding optimal average gains are found using a water-filling procedure. The stochastic counterpart is obtained in two steps. First, the true weights, which are unknown, are replaced by their current estimates in the expression for the optimal average gains. Secondly, the current gains are calculated based on the difference between the estimated optimal cumulative gain and the actual given cumulative gain. Additionally, a simplified gain allocation method is proposed that avoids the sorting needed in the water-filling procedure. The resulting algorithm behaves initially like the proportionate normalized least mean square algorithm and as time proceeds the algorithm behaves like the normalized least mean square algorithm. This type of behavior is typically desired and results in enhanced convergence performance. We present results for the new algorithms and compare them to other standard proportionate-type normalized least mean square algorithms.
C1 [Wagner, Kevin T.] USN, Res Lab, Div Radar, Washington, DC 20375 USA.
[Doroslovacki, Milos I.] George Washington Univ, Dept Elect & Comp Engn, Washington, DC 20052 USA.
RP Wagner, KT (reprint author), USN, Res Lab, Div Radar, Washington, DC 20375 USA.
NR 4
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1058-6393
BN 978-1-4244-9721-8
J9 CONF REC ASILOMAR C
PY 2010
BP 1951
EP 1955
PG 5
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA BAW92
UT WOS:000305886000362
ER
PT J
AU Moon, JS
Curtis, D
Hu, M
Wong, D
McGuire, C
Campbell, PM
Jernigan, G
Tedesco, J
VanMil, B
Myers-Ward, R
Eddy, C
Gaskill, DK
Robinson, J
Fanton, M
Asbeck, P
AF Moon, J. S.
Curtis, D.
Hu, M.
Wong, D.
McGuire, C.
Campbell, P. M.
Jernigan, G.
Tedesco, J.
VanMil, B.
Myers-Ward, R.
Eddy, C., Jr.
Gaskill, D. K.
Robinson, J.
Fanton, M.
Asbeck, P.
GP IEEE
TI Development of Wafer-Scale Graphene RF Electronics
SO 2010 EUROPEAN MICROWAVE INTEGRATED CIRCUITS CONFERENCE (EUMIC)
SE European Microwave Integrated Circuits Conference - Proceedings
LA English
DT Proceedings Paper
CT Conference on European Microwave Week Connecting the World
CY SEP 26-OCT 01, 2010
CL Paris, FRANCE
SP IEEE, EuMA, EurAAP, IET
AB In this talk, we present state-of-the-art performance of top-gated graphene n-FETs and p-FETs fabricated with epitaxial graphene layers grown on SiC and Si substrates.
C1 [Moon, J. S.; Curtis, D.; Hu, M.; Wong, D.; McGuire, C.] HRL Labs LLC, 3011 Malibu Canyon Rd, Malibu, CA 90265 USA.
[Campbell, P. M.; Jernigan, G.; Tedesco, J.; VanMil, B.; Myers-Ward, R.; Eddy, C., Jr.; Gaskill, D. K.] Naval Res Lab, Washington, DC 20375 USA.
[Robinson, J.; Fanton, M.] EOC, Pittsburgh, PA 16229 USA.
[Asbeck, P.] Univ Calif San Diego, La Jolla, CA 92093 USA.
RP Moon, JS (reprint author), HRL Labs LLC, 3011 Malibu Canyon Rd, Malibu, CA 90265 USA.
EM jmoon@hrl.com; paul.campbell@nrl.navy.mil; jrobinson@eoc.psu.edu;
asbeck@ece.ucsd.edu
RI Robinson, Joshua/I-1803-2012
FU DARPA Program; DARPA under contract SPAWAR [N66001-08-C-2048]
FX This work was supported by the DARPA Program, monitored by Dr. John
Albrecht at DARPA under contract SPAWAR #N66001-08-C-2048. The views,
opinions, and/or findings contained in this article/presentation are
those of the author/presenter and should not be interpreted as
representing the official views or policies, either expressed or
implied, of the Defense Advanced Research Projects Agency or the
Department of Defense.
NR 9
TC 0
Z9 0
U1 0
U2 3
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-2-87487-017-0
J9 EUR MICROW INTEGRAT
PY 2010
BP 254
EP 257
PG 4
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA BTU72
UT WOS:000288124400066
ER
PT S
AU Ammula, V
Wentworth, SM
Rao, SM
AF Ammula, Veneela
Wentworth, Stuart M.
Rao, Sadasiva M.
GP IEEE
TI Design and Implementation of a Dual Excited Planar Circular Array
Antenna for Base Stations
SO 2010 IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM
SE IEEE Antennas and Propagation Society International Symposium
LA English
DT Proceedings Paper
CT 2010 IEEE International Symposium Antennas and Propagation/CNC-USNC/URSI
Radio Science Meeting
CY JUL 11-17, 2010
CL Toronto, CANADA
SP IEEE, URSI
C1 [Ammula, Veneela; Wentworth, Stuart M.] Auburn Univ, Dept ECE, Auburn, AL 36849 USA.
[Rao, Sadasiva M.] Naval Res Lab, Washington, DC 20375 USA.
RP Ammula, V (reprint author), Auburn Univ, Dept ECE, Auburn, AL 36849 USA.
EM wentwsm@auburn.edu
NR 3
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1522-3965
BN 978-1-4244-4968-2
J9 IEEE ANTENNAS PROP
PY 2010
PG 4
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA BTL34
UT WOS:000287212400106
ER
PT S
AU Das, S
Olsen, R
Meagher, C
Tame, B
Kroening, A
AF Das, Santanu
Olsen, Randall
Meagher, Chris
Tame, Bradley
Kroening, Adam
GP IEEE
TI New Approaches to Directional Antenna Technologies for Unmanned System
Communications
SO 2010 IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM
SE IEEE Antennas and Propagation Society International Symposium
LA English
DT Proceedings Paper
CT 2010 IEEE International Symposium Antennas and Propagation/CNC-USNC/URSI
Radio Science Meeting
CY JUL 11-17, 2010
CL Toronto, CANADA
SP IEEE, URSI
AB We discuss novel methods and techniques for the design and development of low cost light weight directional antennas at microwave frequencies for unmanned system communications application. These are based on Rotman lens, Risley prism and the multi-horn switched beam antenna principles.
C1 [Das, Santanu] Off Naval Res, Arlington, VA 22217 USA.
[Olsen, Randall; Meagher, Chris] SPAWAR Syst Ctr, San Diego, CA USA.
[Tame, Bradley] Ball Aerospa & Technol Corp, Boulder, CO USA.
[Kroening, Adam] EMS Technol, Norcross, GA USA.
RP Das, S (reprint author), Off Naval Res, Arlington, VA 22217 USA.
NR 4
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1522-3965
BN 978-1-4244-4968-2
J9 IEEE ANTENNAS PROP
PY 2010
PG 4
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA BTL34
UT WOS:000287212400046
ER
PT S
AU Walker, SD
Chatterjee, D
Kluskens, MS
AF Walker, Shaun D.
Chatterjee, Deb
Kluskens, Michael S.
GP IEEE
TI A New Approach for Improved Evaluation of Sommerfeld Integral Tails for
PEC-terminated Single Layered Media
SO 2010 IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM
SE IEEE Antennas and Propagation Society International Symposium
LA English
DT Proceedings Paper
CT 2010 IEEE International Symposium Antennas and Propagation/CNC-USNC/URSI
Radio Science Meeting
CY JUL 11-17, 2010
CL Toronto, CANADA
SP IEEE, URSI
C1 [Walker, Shaun D.; Chatterjee, Deb] UMKC, CSEE Dept, 570-F Flarsheim Hall,5110 Rockhill Rd, Kansas City, KS 66110 USA.
[Kluskens, Michael S.] Naval Res Lab, Div Radar, Code 5314, Washington, DC 20375 USA.
RP Walker, SD (reprint author), UMKC, CSEE Dept, 570-F Flarsheim Hall,5110 Rockhill Rd, Kansas City, KS 66110 USA.
EM chatd@umkc.edu
NR 8
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1522-3965
BN 978-1-4244-4968-2
J9 IEEE ANTENNAS PROP
PY 2010
PG 4
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA BTL34
UT WOS:000287212404048
ER
PT S
AU Hurni, MA
Sekhavat, P
Karpenko, M
Ross, IM
AF Hurni, Michael A.
Sekhavat, Pooya
Karpenko, Mark
Ross, I. Michael
GP IEEE
TI Autonomous Multi-Vehicle Formations Using A Pseuodospectral Optimal
Control Framework
SO 2010 IEEE/ASME INTERNATIONAL CONFERENCE ON ADVANCED INTELLIGENT
MECHATRONICS (AIM)
SE IEEE ASME International Conference on Advanced Intelligent Mechatronics
LA English
DT Proceedings Paper
CT IEEE/ASME International Conference on Advanced Intelligent Mechatronics
(AIM)
CY JUL 06-09, 2010
CL Montreal, CANADA
SP IEEE, ASME
AB Future civilian and military missions call for the autonomous coordination and control of unmanned vehicles. This paper presents the implementation of a pseudospectral (PS) optimal control-based algorithm for autonomous trajectory planning and control of multiple UGVs with real-time information updates. The mission of the UGVs is to maintain formation with respect to a lead vehicle traversing from a start point to a target point. Each vehicle must avoid static and dynamic obstacles including other vehicles. Real-time PS-controls accommodate unforseen events and changes in the environment that may take place over the course of the mission. Simulation results illustrate the performance of the algorithm for various multi-vehicle scenarios.
C1 [Hurni, Michael A.] USN Acad, Dept Weap & Syst Engn, Annapolis, MD 21402 USA.
[Sekhavat, Pooya] Texas Engn Expt Stn, Dept Mech & Astronaut Engn, College Stn, TX 77843 USA.
[Karpenko, Mark; Ross, I. Michael] US Navy, Dept Mech & Astronaut Engn, Monterey, CA 93943 USA.
RP Hurni, MA (reprint author), USN Acad, Dept Weap & Syst Engn, Annapolis, MD 21402 USA.
EM hurni@usna.edu; psekhava@nps.edu; mkarpenk@nps.edu; imross@nps.edu
NR 18
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2159-6255
BN 978-1-4244-8030-2
J9 IEEE ASME INT C ADV
PY 2010
PG 7
WC Computer Science, Artificial Intelligence; Engineering, Electrical &
Electronic; Robotics
SC Computer Science; Engineering; Robotics
GA BDE01
UT WOS:000312904200164
ER
PT S
AU Wagner, C
Burger, M
Edwards, G
AF Wagner, Crystal
Burger, Mike
Edwards, Gail
GP IEEE
TI Utilizing Fleet-Driven Metrics to Identify and Forecast System Degrader
SO 2010 IEEE AUTOTESTCON
SE IEEE Autotestcon
LA English
DT Proceedings Paper
CT AUTOTESTCON 2010 Systems Readiness Technology Conference
CY SEP 13-16, 2010
CL Orlando, FL
DE integrated support environment; computing architecture; interactive
database; fleet data; fleet metrics; performance; maintenance; supply;
fleet wide readiness
AB Naval Air Systems Command (NAVAIR) is responsible for cradle-to-grave development and support of Aircraft Launch and Recovery Equipment (ALRE). As this equipment and its associated development, maintenance, and support become increasingly complex, and the budgetary pressures facing the Navy become increasingly strong, there arises a need for an Integrated Support Environment (ISE) for ALRE. For the Fleet, the ISE streamlines the process of requests for information, help, repairs, and needed capabilities. For the NAVAIR stakeholders supporting the Fleet, the ISE provides efficient tailored access both to the knowledge required for supporting the Fleet and for strategically planning for the future. One of the current products of the ISE initiative includes Fleet-driven metrics of ALRE systems. All ALRE Fleet metrics data, comprising readiness, equipment performance, maintenance, and supply system degraders, are housed in the NAVAIR Lakehurst ISE laboratory, where all team members can access, analyze, validate, and utilize ALRE metrics data. This metrics data is used to identify issues driving maintenance and support costs, forecast requirements, and influence performance. By proactively identifying maintenance and modernization requirements, it is possible to coordinate and assure current and future Fleet ALRE materiel readiness, as well as develop and justify current and future budgets. In the past, many product improvement programs were based on subjective analysis. Aircraft carrier databases contained multiple errors and incomplete information, hampering analysis of metrics data. Further complicating the issue, metrics data was stored across multiple data warehouses, making it more difficult to gather information and make important connections between distinct data sets. ISE integrates information from all of these disparate Navy-wide data sources to identify and explore opportunities to increase system readiness by effectively implementing maintenance and design improvements. Localizing the data to one central repository facilitates linking the information together in order to fully capture the current status and future needs of the Fleet. ISE allows users to continuously monitor performance in near real-time, report detailed information for day-to-day decision-making, and analyze data to uncover trends in performance.
C1 [Wagner, Crystal; Burger, Mike; Edwards, Gail] USN, Air Syst Command, Lakehust, NJ 08733 USA.
RP Wagner, C (reprint author), USN, Air Syst Command, Lakehust, NJ 08733 USA.
NR 6
TC 2
Z9 2
U1 1
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1088-7725
BN 978-1-4244-7959-7
J9 IEEE AUTOTESTCON
PY 2010
BP 1
EP 6
DI 10.1109/FUZZY.2010.5584244
PG 6
WC Engineering, Electrical & Electronic
SC Engineering
GA BTI75
UT WOS:000287044100001
ER
PT S
AU Sparr, C
Dusch, K
AF Sparr, Christopher
Dusch, Kevin
GP IEEE
TI Prioritizing parallel analog re-host Candidates through ATLAS Source
Code Analysis
SO 2010 IEEE AUTOTESTCON
SE IEEE Autotestcon
LA English
DT Proceedings Paper
CT AUTOTESTCON 2010 Systems Readiness Technology Conference
CY SEP 13-16, 2010
CL Orlando, FL
DE automatic test system source data repository; parallel test capability
AB The US Navy's Consolidated Automated Support System (CASS) family of testers is outfitted with three Ai-710 analog test instruments and provides 96 channels of analog test capability, enabling transition from a traditional serial to a parallel test approach. Most CASS test program sets do not take advantage of parallel test capability, which results in long run-times. In this paper, the authors will outline a set of design rules for mining data in the NAVAIR automatic test system source data repository to identify economical targets of opportunity, the development of an initial set of tools to apply the parallel test capability, and show a return on investment for reducing the cost of testing avionics systems.
C1 [Sparr, Christopher] Naval Air Syst Command, Mcas Cherry Point, NC 28532 USA.
[Dusch, Kevin] Naval Air Syst Command, NAS Patuxent River, MD USA.
RP Sparr, C (reprint author), Naval Air Syst Command, Mcas Cherry Point, NC 28532 USA.
EM christopher.sparr@navy.mil; kevin.dusch@navy.mil
NR 5
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1088-7725
BN 978-1-4244-7959-7
J9 IEEE AUTOTESTCON
PY 2010
BP 11
EP 16
PG 6
WC Engineering, Electrical & Electronic
SC Engineering
GA BTI75
UT WOS:000287044100003
ER
PT S
AU Cooper, JN
Augustine, RA
AF Cooper, John N.
Augustine, Robert A.
GP IEEE
TI CASS Phase II TPS Offload Testing, Production and Delivery to the Fleet
SO 2010 IEEE AUTOTESTCON
SE IEEE Autotestcon
LA English
DT Proceedings Paper
CT AUTOTESTCON 2010 Systems Readiness Technology Conference
CY SEP 13-16, 2010
CL Orlando, FL
DE CASS; TPS; Offload; Autamated Test; ATE; Lessons learned; NAVAIR
AB This paper examines the testing and production processes used on the CASS Phase II TPS Offload Program. The CASS Phase II TPS Offload program is a US Navy acquisition to replace legacy ATE Systems using CASS (Consolidated Automated Support System) Test Stations. This provides the Navy intermediate maintenance activities an effective tool for restoring "Ready For Issue" (RFI) status for over 450 aircraft avionic assemblies. With the completion of these OTPSs the Navy will replace a multitude of obsolete aircraft support testers with one type of station.
The Offload team developed over 400 test programs running on 75 unique hardware test sets and produced a total of 1143 Operational Test Program Sets along with accompanying spares for the US Navy. From integration to deployment to the Fleet, a variety of test processes are encountered and with the numerous test programs being developed, the team found itself in some form of "final" test for most of the program life cycle. The TPS Offload team brought together the developers, buyers and the end users to streamline these processes without reducing the quality of the product. We will examine the evolution of the acceptance test approach for the CASS Phase II TPS Offload Program, the costs and benefits of the various testing phases and the lessons learned as we combined many aspects of testing along the way.
The paper will further discuss the transition from development to production. The first production units were delivered in August 2005 and by the end of 2010 we will have delivered 1143 test sets to sites around the world. To prepare for this complex production effort, a multi-disciplined team was established to conduct Pre-production kaizens at the Orlando and La Mesa facilities. The team included our US Navy and DCMA customers. A single piece flow operation was developed which allowed for early production delivery of multiple configurations to the US Navy. Subassemblies, such as cables and test fixtures would be built at a low cost manufacturing facility in La Mesa, Mexico, while final assembly and acceptance test would take place at the Lockheed Martin Simulation, Training & Support facility in Orlando. The operating plan, layout and support model for the production operation evolved and lessons learned were incorporated in each successive block of production.
C1 [Cooper, John N.] Lockheed Martin Global Training & Logist, Orlando, FL 32801 USA.
[Augustine, Robert A.] Naval Air Syst Command, Patuxent River, MA USA.
RP Cooper, JN (reprint author), Lockheed Martin Global Training & Logist, Orlando, FL 32801 USA.
EM john.n.cooper@lmco.com; robert.a.augustine@navy.mil
NR 0
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1088-7725
BN 978-1-4244-7959-7
J9 IEEE AUTOTESTCON
PY 2010
BP 201
EP 205
PG 5
WC Engineering, Electrical & Electronic
SC Engineering
GA BTI75
UT WOS:000287044100039
ER
PT S
AU Shannon, R
Knecht, J
AF Shannon, Russell
Knecht, John
GP IEEE
TI Optimizing Diagnostic Verification Processes
SO 2010 IEEE AUTOTESTCON
SE IEEE Autotestcon
LA English
DT Proceedings Paper
CT AUTOTESTCON 2010 Systems Readiness Technology Conference
CY SEP 13-16, 2010
CL Orlando, FL
DE Avionics diagnostics; built-in test; M-demo; verification
AB Demonstrations of avionics system and subsystem diagnostic capability are performed before a system or subsystem is verified. This ordinarily happens during the system design and demonstration phase of a program. In the case of aircraft or ground vehicles, there are several subsystem demonstrations, followed by a single system-level event. By the time a system or subsystem is ready for a functional demonstration of its diagnostic capability, there is already significant programmatic inertia towards achieving the next programmatic or contractual milestone. There is typically not enough available manpower, time-on-system, or even funding to test every possible fault in a given system or subsystem. Indeed, testing only the "relevant" faults, which the system's diagnostics have been built to address, can be a hugely time-consuming effort. Due to these constraints, diagnostic demonstrations are sometimes not conducted in a scientifically robust manner. Sometimes, certain testing techniques are used in an effort to expedite testing. These techniques include: emulating hardware faults and their detection circuitry in software, selecting only those faults which are easy to test or guaranteed to work, and choosing faults which do not significantly stress the diagnostics system. This paper describes a survey of diagnostic program managers in an attempt to characterize, and suggest remedies for, the time and budget-constrained fashion in which avionics diagnostics systems are functionally demonstrated today.
C1 [Shannon, Russell; Knecht, John] USN, Air Syst Command, Lakehurst, NJ USA.
RP Shannon, R (reprint author), USN, Air Syst Command, Lakehurst, NJ USA.
EM russell.shannon@navy.mil; john.knecht@navy.mil
NR 10
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1088-7725
BN 978-1-4244-7959-7
J9 IEEE AUTOTESTCON
PY 2010
BP 222
EP 226
PG 5
WC Engineering, Electrical & Electronic
SC Engineering
GA BTI75
UT WOS:000287044100044
ER
PT S
AU Young, T
Fehskens, M
Pujara, P
Burger, M
Edwards, G
AF Young, Thomas
Fehskens, Matthew
Pujara, Paavan
Burger, Michael
Edwards, Gail
GP IEEE
TI Utilizing Data Mining to Influence Maintenance Actions
SO 2010 IEEE AUTOTESTCON
SE IEEE Autotestcon
LA English
DT Proceedings Paper
CT AUTOTESTCON 2010 Systems Readiness Technology Conference
CY SEP 13-16, 2010
CL Orlando, FL
DE data mining; text mining; statistical analysis; operational
availability; maintenance
AB For Aircraft Launch and Recovery Equipment (ALRE), the goal is to get planes in the air and ensure they land safely. Consequently, a high operational availability (Ao) is crucial to ALRE operations. In order to ensure high Ao, it is crucial that the amount of maintenance, both corrective and preventative, is kept to a minimum. Historically, improvements have been reactive in nature to satisfy the Fleet's needs of the moment and are never implemented across the Fleet. One approach to improving maintenance practices is to use historical data in combination with data mining to determine where and how maintenance procedures can be changed or enhanced. For example, if a maintenance manual says to remove three electronics boxes based on a built-in test (BIT) code, but historically, the data shows that removing and replacing two of the boxes never fix the problem, then the maintainer can be directed to first remove and replace the box which the data suggests is the most-likely cause of failure. This type of improvement is where data mining can be used to enhance or modify maintenance procedures. The Integrated Support Environment (ISE) team and the Integrated Diagnostics and Automated Test Systems (IDATS) team of NAVAIR Lakehurst are jointly investigating the use of data mining as an important tool to enhance ALRE systems and to potentially decrease preventive maintenance on-board Navy vessels, thereby reducing the total cost of ownership. The authors' approach is to use maintenance actions, system performance data, and supply information to draw a clear picture of the failures, diagnoses and repair actions for specific components of ALRE systems. The authors are using a commercial off-the-shelf (COTS) data mining suite, called SPSS Clementine, alongside custom software tools to detect the meaningful, yet hidden, patterns within the mountain of data associated with ALRE systems. SPSS Clementine is one of the data mining industry's premier tools, allowing rapid development of models for data mining. Additionally, ALRE subject matter experts (SMEs) were consulted to ensure the validity of the teams' findings. The combination of modern data mining practices and expert knowledge of ALRE systems will be leveraged to improve the maintenance performed at the O-level and to possibly understand why the failure happened in the first place. This paper will describe the forthcoming investigation exemplifying how the data warehouse holding various sources of data about ALRE systems will be utilized to improve the education of maintainers and to enhance maintenance practices, to understand the cause of component failures, as well as provide solutions to diagnose these failures. Utilizing the knowledge and expertise of database systems and data mining which the ISE team provides, combined with SME knowledge, non-trivial solutions to ALRE maintenance practices shall be uncovered to improve the maintenance environment on-ship
C1 [Young, Thomas; Fehskens, Matthew; Pujara, Paavan; Burger, Michael; Edwards, Gail] USN, Air Syst Command, Lakehurst, NJ 08733 USA.
RP Young, T (reprint author), USN, Air Syst Command, Lakehurst, NJ 08733 USA.
NR 3
TC 1
Z9 1
U1 1
U2 4
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1088-7725
BN 978-1-4244-7959-7
J9 IEEE AUTOTESTCON
PY 2010
BP 267
EP 271
PG 5
WC Engineering, Electrical & Electronic
SC Engineering
GA BTI75
UT WOS:000287044100054
ER
PT J
AU Luke, BL
Pace, PE
AF Luke, Brian L.
Pace, Phillip E.
GP IEEE
TI Computation of the Robust Symmetrical Number System Dynamic Range
SO 2010 IEEE INFORMATION THEORY WORKSHOP (ITW)
LA English
DT Proceedings Paper
CT IEEE Information Theory Workshop (ITW)
CY AUG 30-SEP 03, 2010
CL Dublin, IRELAND
SP IEEE
AB The robust symmetrical number system (RSNS) is a number theoretic transform formed using N >= 2 integer sequences and ensures that two successive RSNS vectors (paired terms from all N sequences) differ by only one integer - integer Gray code property. The dynamic range (M) over cap of the RSNS is defined as the greatest length of combined sequences that contain no ambiguities or repeated paired terms. For all but a select few RSNS sequences there is no closed-form solution to compute the dynamic range and its position. This paper presents an efficient algorithm for computing the dynamic range and its position. The dynamic range is shown to satisfy (M) over cap < P-f where P-f is the RSNS fundamental period P-f = 2N Pi m(i). It then follows that <(M)over cap> < M where M = Pi m(i) is the dynamic range of the residue number system. An example is presented to demonstrate the algorithm. The efficiency of the algorithm is examined by comparing the speed of computation to a naive search algorithm (using MATLAB on a PC).
C1 [Luke, Brian L.] Navy Cyber Def Operat Command, Virginia Beach, VA 23450 USA.
[Pace, Phillip E.] Naval Postgrad Sch, Dept Elect & Comp Engn, Monterey, CA USA.
RP Luke, BL (reprint author), Navy Cyber Def Operat Command, Virginia Beach, VA 23450 USA.
EM brian.luke@navy.mil; pepace@nps.edu
NR 10
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4244-8264-1
PY 2010
PG 5
WC Computer Science, Theory & Methods; Engineering, Electrical & Electronic
SC Computer Science; Engineering
GA BAW94
UT WOS:000305892500004
ER
PT S
AU Wang, XL
Ge, HY
Kirsteins, IP
AF Wang, Xiaoli
Ge, Hongya
Kirsteins, Ivars P.
GP IEEE
TI DIRECTION-OF-ARRIVAL ESTIMATION USING DISTRIBUTED ARRAYS: A CANONICAL
COORDINATES PERSPECTIVE WITH LIMITED ARRAY SIZE AND SAMPLE SUPPORT
SO 2010 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL
PROCESSING
SE International Conference on Acoustics Speech and Signal Processing
ICASSP
LA English
DT Proceedings Paper
CT 2010 IEEE International Conference on Acoustics, Speech, and Signal
Processing
CY MAR 10-19, 2010
CL Dallas, TX
SP IEEE Signal Proc Soc
DE canonical correlation analysis (CCA); direction-of-arrival (DOA)
estimation
AB This work provides a canonical coordinates perspective for direction-of-arrival (DOA) estimation using two distributed sensor arrays. A new method for estimating the DOA of multiple far-field narrow-band sources is proposed. Distinct from existing asymptotic results for canonical correlation analysis (CCA) in such an application, our special interest lies in the realistic limited array size and sample support evaluation. And our proposed objective function does not need asymptotic assumption on array size. Reformulating the task of DOA estimation as a maximization problem under the canonical coordinates framework, we reveal the fact that the bearing information of the sources is embedded in the filtering matrices for generating the canonical coefficients. By properly making use of these filtering matrices we are able to reconstruct the steering vectors of the arrays, thus obtain the DOA estimation of the sources using distributed arrays.
C1 [Wang, Xiaoli; Ge, Hongya] New Jersey Inst Technol, Dept ECE, Newark, NJ 07102 USA.
[Kirsteins, Ivars P.] Naval Undersea Warfare Ctr, Newport, RI 02841 USA.
RP Wang, XL (reprint author), New Jersey Inst Technol, Dept ECE, Newark, NJ 07102 USA.
FU Office of Naval Research (ONR); Naval Undersea Warfare Center (NUWC)
FX This work was supported in part by the Office of Naval Research (ONR)
and the Naval Undersea Warfare Center (NUWC).
NR 9
TC 2
Z9 2
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1520-6149
BN 978-1-4244-4296-6
J9 INT CONF ACOUST SPEE
PY 2010
BP 2622
EP 2625
DI 10.1109/ICASSP.2010.5496272
PG 4
WC Acoustics; Computer Science, Theory & Methods; Engineering, Electrical &
Electronic
SC Acoustics; Computer Science; Engineering
GA BTJ55
UT WOS:000287096002143
ER
PT S
AU Wagner, KT
Doroslovacki, MI
AF Wagner, Kevin T.
Doroslovacki, Milos I.
GP IEEE
TI PROPORTIONATE-TYPE NLMS ALGORITHMS BASED ON MAXIMIZATION OF THE JOINT
CONDITIONAL PDF FOR THE WEIGHT DEVIATION VECTOR
SO 2010 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL
PROCESSING
SE International Conference on Acoustics Speech and Signal Processing
ICASSP
LA English
DT Proceedings Paper
CT 2010 IEEE International Conference on Acoustics, Speech, and Signal
Processing
CY MAR 10-19, 2010
CL Dallas, TX
SP IEEE Signal Proc Soc
DE Adaptive filtering; convergence; proportionate-type normalized least
mean square (PtNLMS) algorithm; sparse impulse response
AB In this paper, we present a proportionate-type normalized least mean square algorithm which operates by choosing adaptive gains at each time step in a manner designed to maximize the joint conditional probability that the next-step coefficient estimates reach their optimal values. We compare and show that the performance of the joint maximum conditional probability density function (PDF) one-step algorithm is superior to the proportionate normalized least mean square algorithm when operating on a sparse impulse response. We also show that the new algorithm is superior to a previously introduced algorithm which assumed that the conditional PDF could be represented by the product of the marginal conditional PDFs, i.e., that the weight deviations are mutually conditionally independent.
C1 [Wagner, Kevin T.] USN, Res Lab, Div Radar, Washington, DC 20375 USA.
[Doroslovacki, Milos I.] George Washington Univ, Dept Elect & Comp Engn, Washington, DC 20052 USA.
RP Wagner, KT (reprint author), USN, Res Lab, Div Radar, Washington, DC 20375 USA.
NR 5
TC 1
Z9 1
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1520-6149
BN 978-1-4244-4296-6
J9 INT CONF ACOUST SPEE
PY 2010
BP 3738
EP 3741
DI 10.1109/ICASSP.2010.5495871
PG 4
WC Acoustics; Computer Science, Theory & Methods; Engineering, Electrical &
Electronic
SC Acoustics; Computer Science; Engineering
GA BTJ55
UT WOS:000287096003169
ER
PT S
AU Ge, HY
Kirsteins, IP
AF Ge, Hongya
Kirsteins, Ivars P.
GP IEEE
TI PASSIVE RANGING CAPABILITY OF A MULTI-MODULE ARRAY IN UNDERWATER
ACOUSTIC ENVIRONMENTS
SO 2010 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL
PROCESSING
SE International Conference on Acoustics Speech and Signal Processing
ICASSP
LA English
DT Proceedings Paper
CT 2010 IEEE International Conference on Acoustics, Speech, and Signal
Processing
CY MAR 10-19, 2010
CL Dallas, TX
SP IEEE Signal Proc Soc
DE Passive Source Localization; Parameter Estimation Performance; the
Cramer-Rao Lower Bounds
AB This work presents our research results on the capability of passive source localization using a towed multi-module array in underwater acoustic environments. We developed new Cramer-Rao Lower Bound (CRLB) results for assessing the array's source localization capability under environmental uncertainties, such as array modules' positions and acoustic-field's spatial coherence. We also developed a two-stage approach and provide details for passive ranging by utilizing data either non-coherently or coherently, depending on the availability of spatial coherence in the received data from multiple modules of towed array.
C1 [Ge, Hongya] New Jersey Inst Technol, Dept ECE, Newark, NJ 07102 USA.
[Kirsteins, Ivars P.] Naval Undersea Warfare Ctr, Newport, RI 02841 USA.
RP Ge, HY (reprint author), New Jersey Inst Technol, Dept ECE, Newark, NJ 07102 USA.
FU ONR; NUWC
FX THIS WORK HAS BEEN PARTIALLY SUPPORTED BY THE ONR AND NUWC.
NR 6
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1520-6149
BN 978-1-4244-4296-6
J9 INT CONF ACOUST SPEE
PY 2010
BP 5642
EP 5645
DI 10.1109/ICASSP.2010.5495261
PG 4
WC Acoustics; Computer Science, Theory & Methods; Engineering, Electrical &
Electronic
SC Acoustics; Computer Science; Engineering
GA BTJ55
UT WOS:000287096005139
ER
PT S
AU Chen, X
Rowe, NC
AF Chen, Xiao
Rowe, Neil C.
GP IEEE
TI Improving Localization Accuracy using Spatio-Temporal Information of
ObjectsOptimal Allocation of Monitoring
SO 2010 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS
SE IEEE International Conference on Communications
LA English
DT Proceedings Paper
CT 2010 IEEE International Conference on Communications
CY MAY 23-27, 2010
CL Cape Town, SOUTH AFRICA
SP IEEE
ID TRACKING
AB Improvised explosive devices (IEDs) are an increasingly serious military threat as is witnessed in Iraq and Afghanistan. To combat the IED emplacement, it is important to have persistent surveillance over time. Due to the low cost and capabilities of sensors, wireless sensor networks (WSNs) have tremendous potential for military and civilian surveillance. In this paper, we explore methods to improve an important aspect of surveillance: localization accuracy. Though there are many localization algorithms in the literature, all of them try to improve the accuracy from the side of sensor networks. In this paper, we tackle this problem from a new angle, that is, we look at the spatio-temporal relationships of objects we track, which, as far as we know, unprecedented in this attempt. We first develop algorithms that use spatial and temporal relationships of objects separately and then design ones that combine them. Experimental results show that all our proposed algorithms can improve localization accuracy, especially those combined ones. Moreover, since our methods use features related to objects themselves and not the underlying localization mechanism, they can be built on any localization algorithm to improve accuracy.
C1 [Chen, Xiao] Texas State Univ, Dept Comp Sci, San Marcos, TX 78666 USA.
[Rowe, Neil C.] US Navy, Postgrad Sch, Dept Comp Sci, Monterey, CA 93943 USA.
RP Chen, X (reprint author), Texas State Univ, Dept Comp Sci, San Marcos, TX 78666 USA.
EM xc10@txstate.edu; ncrowe@nps.edu
NR 16
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1550-3607
BN 978-1-4244-6404-3
J9 IEEE ICC
PY 2010
PG 5
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA BUU13
UT WOS:000290335601150
ER
PT S
AU Raj, RG
Bovik, AC
AF Raj, Raghu G.
Bovik, Alan C.
GP IEEE
TI A FAST MULTILINEAR ICA ALGORITHM
SO 2010 IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING
SE IEEE International Conference on Image Processing ICIP
LA English
DT Proceedings Paper
CT IEEE International Conference on Image Processing
CY SEP 26-29, 2010
CL Hong Kong, PEOPLES R CHINA
SP IEEE, IEEE Signal Proc Soc
DE ICA; non-stationarity; fixation selection
ID INDEPENDENT COMPONENT ANALYSIS
AB We extend our previous work on Multilinear Independent Component Analysis (MICA) by introducing a Fast-MICA algorithm that demonstrates the same improvement over classical ICA as the original MICA algorithm [1] while improving the computational speed by two polynomial orders of magnitude. Apart for enabling a faster determination of the multilinear structure of image patch probability density, this new approach opens up, for the first time, the possibility of computing a novel non-stationarity index based on the relative change in mutual information. We demonstrate the performance of our Fast-MICA algorithm together with an illustration of our novel non-stationarity index.
C1 [Raj, Raghu G.] USN, Res Lab, Washington, DC 20375 USA.
[Bovik, Alan C.] Univ Texas Austin, Austin, TX 78712 USA.
RP Raj, RG (reprint author), USN, Res Lab, Washington, DC 20375 USA.
RI Bovik, Alan/B-6717-2012
OI Bovik, Alan/0000-0001-6067-710X
NR 4
TC 1
Z9 1
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1522-4880
BN 978-1-4244-7994-8
J9 IEEE IMAGE PROC
PY 2010
BP 1889
EP 1892
DI 10.1109/ICIP.2010.5652403
PG 4
WC Engineering, Electrical & Electronic; Imaging Science & Photographic
Technology
SC Engineering; Imaging Science & Photographic Technology
GA BTP82
UT WOS:000287728001243
ER
PT S
AU Bachmann, CM
Nichols, CR
Montes, MJ
Fusina, RA
Li, RR
Gross, C
Fry, J
Parrish, C
Sellars, J
White, SA
Jones, CA
Lee, K
AF Bachmann, Charles M.
Nichols, C. Reid
Montes, Marcos J.
Fusina, Robert A.
Li, Rong-Rong
Gross, Carl
Fry, John
Parrish, Chris
Sellars, Jon
White, Stephen A.
Jones, Christopher A.
Lee, Krista
GP IEEE
TI COASTAL CHARACTERIZATION FROM HYPERSPECTRAL IMAGERY: AN INTERCOMPARISON
OF RETRIEVAL PROPERTIES FROM THREE COAST TYPES
SO 2010 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM
SE IEEE International Symposium on Geoscience and Remote Sensing IGARSS
LA English
DT Proceedings Paper
CT 30th IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
on Remote Sensing - Global Vision for Local Action
CY JUN 25-30, 2010
CL Honolulu, HI
SP IEEE
DE remote sensing; hyperspectral imagery; coast type; environmental
factors; spectroscopy
AB Over the past three years, the Naval Research Laboratory has conducted three remote sensing campaigns in regions which included barrier island, coral, and mangrove coastal characteristics. These investigations were conducted at the Virginia Coast Reserve during September 2007, in and around Kaneohe and Waimanalo Bays during January and February 2009, and along the Queensland coast in Australia during May 2009. During each of the studies, hyperspectral imagery (HSI) was acquired over the site in conjunction with both land and water spectral and geotechnical measurements. For coastal classification, such as retrievals of bottom reflectance, bathymetry, beach composition, and vegetation type, subtle variations in spectral properties of physical and biological features are often significant. Beach composition in these coast types differed dramatically due to the origin of the sands. These findings suggest the need to develop models specific to a particular coast type.
C1 [Bachmann, Charles M.; Montes, Marcos J.; Fusina, Robert A.; Li, Rong-Rong; Gross, Carl] USN, Res Lab, Remote Sensing Div, Coastal Sci & Interpretat Sect, Code 7232,4555 Overlook Ave SW, Washington, DC 20375 USA.
[Nichols, C. Reid; Fry, John] Marine Informat Resource Corp, Ellicott 21042, MARYLAND.
[Parrish, Chris; Sellars, Jon; White, Stephen A.] NOAA NOS, Remote Sensing Div, Natl Geodet Survey, Silver Spring, MD 20910 USA.
[Jones, Christopher A.; Lee, Krista] US Navy, Postgrad Sch, Ctr Remote Sensing, Dept Phys, Monterey, CA 93943 USA.
RP Bachmann, CM (reprint author), USN, Res Lab, Remote Sensing Div, Coastal Sci & Interpretat Sect, Code 7232,4555 Overlook Ave SW, Washington, DC 20375 USA.
EM bachmann@nrl.navy.mil
RI Montes, Marcos/J-9239-2015
OI Montes, Marcos/0000-0002-4725-5380
NR 7
TC 3
Z9 3
U1 1
U2 4
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2153-6996
BN 978-1-4244-9566-5
J9 INT GEOSCI REMOTE SE
PY 2010
BP 138
EP 141
DI 10.1109/IGARSS.2010.5650660
PG 4
WC Geosciences, Multidisciplinary; Remote Sensing
SC Geology; Remote Sensing
GA BTS07
UT WOS:000287933800036
ER
PT S
AU Lee, JS
Ainsworth, TL
AF Lee, Jong-Sen
Ainsworth, Thomas L.
GP IEEE
TI AN OVERVIEW OF RECENT ADVANCES IN POLARIMETRIC SAR INFORMATION
EXTRACTION: ALGORITHMS AND APPLICATIONS
SO 2010 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM
SE IEEE International Symposium on Geoscience and Remote Sensing IGARSS
LA English
DT Proceedings Paper
CT 30th IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
on Remote Sensing - Global Vision for Local Action
CY JUN 25-30, 2010
CL Honolulu, HI
SP IEEE
DE Polarimetric SAR; radar polarimetry; SAR calibration; terrain
classification; speckle reduction; ionosphere
AB Recent advances in Polarimetric SAR information extractions are reviewed. Papers published in IEEE Transactions on Geoscience and Remote Sensing and IGARSS proceedings over the last five years were included. We found that PolSAR technology has reached a certain degree of maturity. The availability of high-resolution multi-frequency PolSAR data from space borne and airborne SAR systems will stimulate significant PolSAR applications.
C1 [Lee, Jong-Sen; Ainsworth, Thomas L.] USN, Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
RP Lee, JS (reprint author), USN, Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
EM jong_sen_lee@yahoo.com; Ainsworth@nrl.navy.navy.mil
NR 65
TC 7
Z9 8
U1 0
U2 10
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2153-6996
BN 978-1-4244-9566-5
J9 INT GEOSCI REMOTE SE
PY 2010
BP 851
EP 854
DI 10.1109/IGARSS.2010.5650936
PG 4
WC Geosciences, Multidisciplinary; Remote Sensing
SC Geology; Remote Sensing
GA BTS07
UT WOS:000287933800221
ER
PT J
AU Toporkov, JV
Hwang, PA
Sletten, MA
Frasier, SJ
Farquharson, G
Perkovic, D
AF Toporkov, Jakov V.
Hwang, Paul A.
Sletten, Mark A.
Frasier, Stephen J.
Farquharson, Gordon
Perkovic, Dragana
GP IEEE
TI OBSERVATION OF A BOAT AND ITS WAKE WITH A DUAL-BEAM ALONG-TRACK
INTERFEROMETRIC SAR
SO 2010 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM
SE IEEE International Symposium on Geoscience and Remote Sensing IGARSS
LA English
DT Proceedings Paper
CT IEEE International Geoscience and Remote Sensing Symposium
CY JUN 25-30, 2010
CL Honolulu, HI
SP IEEE
DE Synthetic aperture radar; along-track interferometry; sea surface; radar
velocity measurement; ship wake; marine vehicle detection and tracking
ID SHIP WAKES; IMAGES
AB The Dual-Beam Interferometer is an airborne instrument that combines two along-track interferometric synthetic aperture radars observing the surface below at different squints. This configuration allows retrieving vector velocities of surface flows in a single aircraft pass. The system was designed by the University of Massachusetts and saw several deployments in the early 2000s. An imagery of a boat with a rather pronounced wake system captured during one of these flights is the subject of this paper. The velocity of the vessel is estimated based on the "train off the tracks" displacement in one of the looks. This estimate, which will be affected by uncertainty in target position due to smearing, is then used to remove unknown phase biases in the interferometric channels. Retrieved velocity variations are examined along cuts traversing the wake, with the focus on its narrow "turbulent" part. We find that the reconstructed velocities 150 m behind the boat are intuitively satisfying, but we are unable to fully account for the cross-wake component of velocity at 400 m behind the vessel.
C1 [Toporkov, Jakov V.; Hwang, Paul A.; Sletten, Mark A.] USN, Remote Sensing Div, Res Lab, Washington, DC 20375 USA.
RP Toporkov, JV (reprint author), USN, Remote Sensing Div, Res Lab, Washington, DC 20375 USA.
RI Frasier, Stephen/H-1536-2015;
OI Frasier, Stephen/0000-0003-4287-2889; Farquharson,
Gordon/0000-0002-3052-1646
NR 9
TC 1
Z9 1
U1 2
U2 3
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4244-9566-5
J9 INT GEOSCI REMOTE SE
PY 2010
BP 1940
EP 1943
DI 10.1109/IGARSS.2010.5649709
PG 4
WC Geosciences, Multidisciplinary; Remote Sensing
SC Geology; Remote Sensing
GA BTS07
UT WOS:000287933802022
ER
PT S
AU Hwang, PA
Zhang, B
Perrie, W
AF Hwang, Paul A.
Zhang, Biao
Perrie, William
GP IEEE
TI BREAKING WAVE MEASUREMENTS WITH SAR DEPOLARIZED RETURNS
SO 2010 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM
SE IEEE International Symposium on Geoscience and Remote Sensing IGARSS
LA English
DT Proceedings Paper
CT 30th IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
on Remote Sensing - Global Vision for Local Action
CY JUN 25-30, 2010
CL Honolulu, HI
SP IEEE
DE Depolarized radar cross section; Breaking wave; Hurricane wind
ID KU-BAND; C-BAND; OCEAN; BACKSCATTER; SURFACE; SEA; DISSIPATION
AB The wind generates a distribution of small slope waves and sporadic steep breaking events. Such double structure of the sea surface is expected to have a strong impact on the radar scattering from the ocean surface. The signature of the double structure is in the wind speed dependence of radar returns: linear for scattering from gentle waves and cubic for breaking contribution. The composite-surface Bragg resonance (CB) theory describes the former very well. Detection of the breaking contribution remains difficult. Here we show that the depolarized (de-pol) radar return exhibits the typical double structure, its wind speed dependence increases with wind speed from linear to cubic. The increased sensitivity of the de-pol returns in high winds is ideal for hurricane wind retrieval. The strong breaking connection offers an opportunity to measure wave breaking and the associated energy dissipation and area of foam coverage from space, their quantification is important in air-sea interaction and electromagnetic and electro-optical remote sensing.
C1 [Hwang, Paul A.] USN, Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
RP Hwang, PA (reprint author), USN, Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
EM paul.hwang@nrl.navy.mil
NR 22
TC 0
Z9 0
U1 2
U2 3
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2153-6996
BN 978-1-4244-9566-5
J9 INT GEOSCI REMOTE SE
PY 2010
BP 1952
EP 1955
DI 10.1109/IGARSS.2010.5650598
PG 4
WC Geosciences, Multidisciplinary; Remote Sensing
SC Geology; Remote Sensing
GA BTS07
UT WOS:000287933802025
ER
PT J
AU Wang, YT
Ainsworth, TL
Lee, JS
AF Wang, Yanting
Ainsworth, Thomas L.
Lee, Jong-Sen
GP IEEE
TI EVALUATION OF SYSTEM POLARIZATION QUALITY FOR POLARIMETRIC SAR IMAGERY
AND TARGET DECOMPOSITION
SO 2010 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM
SE IEEE International Symposium on Geoscience and Remote Sensing IGARSS
LA English
DT Proceedings Paper
CT IEEE International Geoscience and Remote Sensing Symposium
CY JUN 25-30, 2010
CL Honolulu, HI
SP IEEE
DE radar polarimetry; synthetic aperture radar; calibration; target
decomposition
ID CALIBRATION
AB The quality of polarimetric synthetic aperture radar (PolSAR) imagery and its polarimetric decompositions depends on the accuracy of polarimetric observations of the SAR system and its calibration. Polarization distortions on the polarimetric measurement can be incurred due to non-ideal system polarization quality and propagation factors, such as channel imbalance, cross-talk, and Faraday rotation at lower frequencies. All these distortions have varying impacts on different target types as well as different decomposition methods. In this paper, we assess the polarization quality of the PolSAR system in the context of polarimetric imagery analysis and quantify the various effects of polarization distortions on polarization target decompositions. A generic metric is defined to measure the polarization purity of the system. Considering the fact that target decomposition plays an important role in imagery analysis, we apply several widely used decomposition methods to showcase the polarimetric system requirement based on the defined metric.
C1 [Wang, Yanting; Ainsworth, Thomas L.; Lee, Jong-Sen] USN, Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
RP Wang, YT (reprint author), USN, Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
NR 11
TC 0
Z9 0
U1 0
U2 5
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4244-9566-5
J9 INT GEOSCI REMOTE SE
PY 2010
BP 2043
EP 2046
DI 10.1109/IGARSS.2010.5652141
PG 4
WC Geosciences, Multidisciplinary; Remote Sensing
SC Geology; Remote Sensing
GA BTS07
UT WOS:000287933802048
ER
PT J
AU Li, RR
Lucke, R
Corson, M
Korwan, D
Gao, BC
AF Li, Rong-Rong
Lucke, Robert
Corson, Mike
Korwan, Daniel
Gao, Bo-Cai
GP IEEE
TI CORRECTION OF SECOND ORDER LIGHT FOR THE HICO (TM) SENSOR ONBOARD THE
INTERNATIONAL SPACE SATATION
SO 2010 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM
SE IEEE International Symposium on Geoscience and Remote Sensing IGARSS
LA English
DT Proceedings Paper
CT IEEE International Geoscience and Remote Sensing Symposium
CY JUN 25-30, 2010
CL Honolulu, HI
SP IEEE
DE Imaging Spectrometer; HICO (TM); Hyperspectral imager; Coastal water;
Remote Sensing; Second order light correction
AB The Hyperspectral Imager for the Coastal Ocean (HICO (TM)) [1] is a new spaceborne sensor designed specifically for monitoring the turbid coastal waters and large inland lakes and rivers from the International Space Station (ISS). HICO (TM) is now collecting hyperspectral imaging data in the wavelength range of 0.4 - 1.0 micron with a spatial resolution of approximately 90 meters and a spectral resolution of 5.7 nanometers. During the construction of the HICOTM instrument, it was not possible to place a blocking filter in front of the CCD (Charge- coupled device) array located in the focal plane. As a result, the second order light from the shorter visible spectral region falls onto the detectors covering the nearIR spectral region above 0.8 micron. In order to have accurate radiometric calibrations of the near-IR channels, the second order light effects need to be removed. Through analysis of HICO (TM) imaging data containing features of shallow underwater objects, such as coral reef, we have developed a new empirical technique to correct for the second order light effects. HICO (TM) data acquired over Midway Island, Key Largo, Bahamas Bay and Philippine Sea are used to demonstrate the effectiveness of the new technique.
C1 [Li, Rong-Rong; Lucke, Robert; Corson, Mike; Korwan, Daniel; Gao, Bo-Cai] USN, Res Lab, Washington, DC 20375 USA.
RP Li, RR (reprint author), USN, Res Lab, Washington, DC 20375 USA.
NR 2
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4244-9566-5
J9 INT GEOSCI REMOTE SE
PY 2010
BP 2303
EP 2306
DI 10.1109/IGARSS.2010.5649184
PG 4
WC Geosciences, Multidisciplinary; Remote Sensing
SC Geology; Remote Sensing
GA BTS07
UT WOS:000287933802114
ER
PT S
AU Lim, S
Chandrasekar, V
Wang, Y
AF Lim, S.
Chandrasekar, V.
Wang, Y.
GP IEEE
TI A NETWORK BASED ATTENUATION CORRECTION SYSTEM FOR NETWORKED DUAL
POLARIZATION RADAR OBSERVATIONS
SO 2010 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM
SE IEEE International Symposium on Geoscience and Remote Sensing IGARSS
LA English
DT Proceedings Paper
CT 30th IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
on Remote Sensing - Global Vision for Local Action
CY JUN 25-30, 2010
CL Honolulu, HI
SP IEEE
DE Attenuation correction; networked radar; X band; dual polarization; CASA
ID X-BAND; REFLECTIVITY
AB Electromagnetic waves backscattered from a common volume in networked radar systems are attenuated differently along the different paths. A network based attenuation correction system for a network of dual polarization radars can be developed by combing the conventional network approach and the conventional differential propagation phase based attenuation correction technique. The network based attenuation correction system proposed here has been evaluated by data from the Adaptive Sensing of the Atmosphere (CASA) Integrated Project 1 (IP1) radars, which is a radar network that can observe a weather event simultaneously by multiple radars in different locations. The preliminary results show that the network based attenuation correction algorithm retrieves reflectivity and differential reflectivity properly.
C1 [Lim, S.; Chandrasekar, V.] Colorado State Univ, 1373 Campus Delivery, Ft Collins, CO 80523 USA.
[Wang, Y.] Naval Res Lab, Washington, DC 20375 USA.
RP Lim, S (reprint author), Colorado State Univ, 1373 Campus Delivery, Ft Collins, CO 80523 USA.
FU National Science Foundation [ERC-031747]
FX This research is supported by the National Science Foundation
(ERC-031747).
NR 10
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2153-6996
BN 978-1-4244-9566-5
J9 INT GEOSCI REMOTE SE
PY 2010
BP 2333
EP 2336
DI 10.1109/IGARSS.2010.5651032
PG 4
WC Geosciences, Multidisciplinary; Remote Sensing
SC Geology; Remote Sensing
GA BTS07
UT WOS:000287933802122
ER
PT S
AU Burrage, D
Wesson, J
Hwang, P
Wang, D
AF Burrage, Derek
Wesson, Joel
Hwang, Paul
Wang, David
GP IEEE
TI PERFORMANCE OF ROUGHNESS CORRECTION MODELS FOR RETRIEVAL OF SEA SURFACE
SALINITY FROM AIR- AND SATELLITE-BORNE L-BAND RADIOMETERS
SO 2010 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM
SE IEEE International Symposium on Geoscience and Remote Sensing IGARSS
LA English
DT Proceedings Paper
CT 30th IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
on Remote Sensing - Global Vision for Local Action
CY JUN 25-30, 2010
CL Honolulu, HI
SP IEEE
DE L-band Radiometer; Sea Surface Salinity; Emissivity; Surface Roughness;
Wave Spectra
ID SLOPE; WAVES; SPECTRUM; MISSION; STARRS
AB The recent and imminent launch of the SMOS and Aquarius satellites carrying microwave L-band radiometers provides an opportunity to map Sea Surface Salinity (SSS) globally with an expected error < 0.2 psu. However, the accuracy of retrieved SSS depends critically on brightness temperature (Tb) corrections for sea surface roughness (SSR) effects. This paper assesses the performance of representative roughness correction models when compared with published data, and applied to recently-acquired airborne L-band radiometer data. One type of model currently being used to process SMOS data combines a wind-driven gravity wave spectrum that describes SSR, with an electromagnetic (EM) model that determines microwave emissivity, to predict the Tb roughness increment relative to the flat sea response. We find that selection of both the spectral and emissivity models strongly influences the resulting (similar to 1 K) Tb errors. We conclude that more accurate modeling of short wavelength spectral components and their EM influence is needed, to reduce these errors to acceptable levels.
C1 [Burrage, Derek; Wesson, Joel; Wang, David] USN, Res Lab, Div Oceanog, Code 7300, Stennis Space Ctr, MS USA.
[Hwang, Paul] Remote Sensing Div, Washington, DC 7200 USA.
RP Burrage, D (reprint author), USN, Res Lab, Div Oceanog, Code 7300, Stennis Space Ctr, MS USA.
EM burrage@nrlssc.navy.mil; wesson@nrlssc.navy.mil;
phwang@ccs.nrl.navy.mil; dwang@nrlssc.navy.mil
FU [0601153N]; [NRL/AB/7330-10-329]
FX This work was supported by the Office of Naval Research as part of the
Sea Surface Roughness Impacts on Microwave Sea Surface Salinity
Measurements research program under Program Element Number 0601153N.
This is NRL contribution NRL/AB/7330-10-329.
NR 24
TC 0
Z9 0
U1 0
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2153-6996
BN 978-1-4244-9566-5
J9 INT GEOSCI REMOTE SE
PY 2010
BP 3019
EP 3022
DI 10.1109/IGARSS.2010.5654454
PG 4
WC Geosciences, Multidisciplinary; Remote Sensing
SC Geology; Remote Sensing
GA BTS07
UT WOS:000287933803042
ER
PT S
AU Lee, JS
Ainsworth, TL
Wang, YT
Chen, KS
Wang, CT
AF Lee, Jong-Sen
Ainsworth, Thomas L.
Wang, Yanting
Chen, Kun-Shan
Wang, Chih-Tien
GP IEEE
TI MONITORING TREE FARMS AND COASTAL ENVIRONMENTS USING RADARSAT-2 POLSAR
DATA
SO 2010 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM
SE IEEE International Symposium on Geoscience and Remote Sensing IGARSS
LA English
DT Proceedings Paper
CT 30th IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
on Remote Sensing - Global Vision for Local Action
CY JUN 25-30, 2010
CL Honolulu, HI
SP IEEE
DE Polarimetric SAR; RADARSAT-2; Terrain classification; polarimetric SAR
interferometry
AB This paper addresses the feasibility of using RADARSAT-2 fine Quad-Pol mode to monitor coastal environment and young tree growth. It will be shown that interferometric coherence may not be high enough for the height estimation of young trees at C-band, but polarimetric sensitivity could be used for tree and crop classification. For coastal environment, we found that polarimetric signature of oyster farm reveals the effect of double bounce scattering and the orientation angle effects.
C1 [Lee, Jong-Sen; Ainsworth, Thomas L.; Wang, Yanting] Natl Cent Univ, Remote Sensing Div, Naval Res Lab, Washington, DC 20375 USA.
[Chen, Kun-Shan; Wang, Chih-Tien] Natl Cent Univ, Ctr Space & Remote Sensing Res, Chungli, Taiwan.
RP Lee, JS (reprint author), Natl Cent Univ, Remote Sensing Div, Naval Res Lab, Washington, DC 20375 USA.
EM jong_sen_lee@yahoo.com; Ainsowrth@nrl.navy.navy.mil;
dkschen@csrsr.ncu.edu.tw
NR 3
TC 0
Z9 0
U1 0
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2153-6996
BN 978-1-4244-9566-5
J9 INT GEOSCI REMOTE SE
PY 2010
BP 3134
EP 3137
DI 10.1109/IGARSS.2010.5654334
PG 4
WC Geosciences, Multidisciplinary; Remote Sensing
SC Geology; Remote Sensing
GA BTS07
UT WOS:000287933803071
ER
PT S
AU Vesecky, JF
Laws, KE
Paduan, JD
AF Vesecky, John F.
Laws, Kenneth E.
Paduan, Jeffery D.
GP IEEE
TI A SYSTEM TRADE MODEL FOR THE MONITORING OF COASTAL VESSELS USING HF
SURFACE WAVE RADAR AND SHIP AUTOMATIC IDENTIFICATION SYSTEMS (AIS)
SO 2010 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM
SE IEEE International Symposium on Geoscience and Remote Sensing IGARSS
LA English
DT Proceedings Paper
CT 30th IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
on Remote Sensing - Global Vision for Local Action
CY JUN 25-30, 2010
CL Honolulu, HI
SP IEEE
DE Marine Domain Awareness; HF radar; Ship Monitoring; AIS
AB Coastal nations have an interest in maritime domain awareness for applications in national security, coastal conservancy, fishery and stewardship of the exclusive economic zones (EEZs) along their coastlines. Using our previously developed HF radar and AIS ship detection models we find signal to noise ratio (SNR) as a function of range, including ducted propagation for the AIS radio signals. We use these SNR estimates to find probability of detection P-d and then explore multiple systems and stations at variable spacings along the coast. Our example HF radar has significant power and aperture, similar to the Pisces radar. The AIS model is for high power (12.5 W) AIS and a significantly elevated receiver (approximate to 250 ft asl). A combined system of HF radar and AIS shows good capability (P-d > 0.9) to ranges of approximate to 125 km for small ships and to 200 km for large ships. Considering a system of sites separated by 100 km we find that a P-d of > 0.9 can be maintained to a distance off shore of 130 km even for small, 120 ton, ships.
C1 [Vesecky, John F.; Laws, Kenneth E.] Univ Calif Santa Cruz, Dept Elect Engn, 1156 High St, Santa Cruz, CA 95064 USA.
[Paduan, Jeffery D.] Univ Circle Monterey, Dept Oceanog, Naval Postgrad Sch, Monterey, CA 93943 USA.
RP Vesecky, JF (reprint author), Univ Calif Santa Cruz, Dept Elect Engn, 1156 High St, Santa Cruz, CA 95064 USA.
EM vesecky@soe.ucsc.edu; paduan@nps.navy.mil
NR 8
TC 1
Z9 1
U1 0
U2 4
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2153-6996
BN 978-1-4244-9566-5
J9 INT GEOSCI REMOTE SE
PY 2010
BP 3414
EP 3417
DI 10.1109/IGARSS.2010.5650279
PG 4
WC Geosciences, Multidisciplinary; Remote Sensing
SC Geology; Remote Sensing
GA BTS07
UT WOS:000287933803142
ER
PT S
AU Corson, MR
Lucke, RL
Davis, CO
Bowles, JH
Chen, DT
Gao, BC
Korwan, DR
Miller, WD
Snyder, WA
AF Corson, M. R.
Lucke, R. L.
Davis, C. O.
Bowles, J. H.
Chen, D. T.
Gao, B. -C.
Korwan, D. R.
Miller, W. D.
Snyder, W. A.
GP IEEE
TI THE HYPERSPECTRAL IMAGER FOR THE COASTAL OCEAN (HICO (TM)) ENVIRONMENTAL
LITTORAL IMAGING FROM THE INTERNATIONAL SPACE STATION
SO 2010 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM
SE IEEE International Symposium on Geoscience and Remote Sensing IGARSS
LA English
DT Proceedings Paper
CT 30th IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
on Remote Sensing - Global Vision for Local Action
CY JUN 25-30, 2010
CL Honolulu, HI
SP IEEE
DE Remote Sensing; Hyperspectral; Space Station
AB The Hyperspectral Imager for the Coastal Ocean (HICO (TM)), launched to the International Space Station in September 2009, is the first spaceborne hyperspectral imager optimized for environmental characterization of the coastal ocean. Building on the heritage of airborne hyperspectral imagers, HICO (TM) combines high signal-to-noise ratio, contiguous 10 nm wide spectral channels over the range 400 to 900 nm, and a scene size of 42 x 190 km to capture the scale of coastal dynamics. HICO (TM) image data is being exploited to produce maps of coastal ocean properties including bathymetry, in-water suspended and dissolved matter, and bottom characteristics, offering a new remote sensing capability for coastal environments worldwide. In this paper we discuss the development and performance characteristics of the HICO (TM) imager, and present example HICO (TM) data products.
C1 [Corson, M. R.; Lucke, R. L.; Bowles, J. H.; Chen, D. T.; Gao, B. -C.; Korwan, D. R.; Snyder, W. A.] USN, Res Lab, Washington, DC 20375 USA.
[Davis, C. O.] Oregon State Univ, Corvallis, OR 97331 USA.
[Miller, W. D.] Computat Phys Inc, Springfield, IL USA.
RP Corson, MR (reprint author), USN, Res Lab, Washington, DC 20375 USA.
NR 5
TC 1
Z9 1
U1 0
U2 4
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2153-6996
BN 978-1-4244-9566-5
J9 INT GEOSCI REMOTE SE
PY 2010
BP 3752
EP 3755
DI 10.1109/IGARSS.2010.5651830
PG 4
WC Geosciences, Multidisciplinary; Remote Sensing
SC Geology; Remote Sensing
GA BTS07
UT WOS:000287933803227
ER
PT S
AU Hunt, ER
Li, L
Yilmaz, MT
Jackson, TJ
AF Hunt, E. Raymond, Jr.
Li, Li
Yilmaz, M. Tugrul
Jackson, Thomas J.
GP IEEE
TI COMPARISON OF VEGETATION WATER CONTENT ESTIMATES FROM WINDSAT AND MODIS
SO 2010 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM
SE IEEE International Symposium on Geoscience and Remote Sensing IGARSS
LA English
DT Proceedings Paper
CT 30th IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
on Remote Sensing - Global Vision for Local Action
CY JUN 25-30, 2010
CL Honolulu, HI
SP IEEE
DE Soil moisture; Iowa; canopy water content
ID INDEX; MOISTURE; IMAGERY
AB Retrieval of soil moisture content from microwave sensors also returns an estimate of vegetation water content. Remotely sensed indices from optical sensors can be used to estimate canopy water content. For corn and soybean in central Iowa, there are allometric relationships between canopy water content and vegetation water content. The Normalized Difference Infrared Index from MODIS was used to estimate vegetation water content. We compared independent estimates of vegetation water content from WindSat and MODIS over central Iowa from 2003 to 2005. There was a strong linear relationship between the MODIS and WindSat estimates, but the WindSat estimates were about two times higher. These results suggest that soil moisture retrievals from microwave sensors may be more accurate with estimates of vegetation water content from optical sensors.
C1 [Hunt, E. Raymond, Jr.; Jackson, Thomas J.] ARS, Hydrol & Remote Sensing Lab, USDA, Beltsville, MD USA.
[Li, Li] Naval Res Lab, Washington, DC USA.
[Yilmaz, M. Tugrul] George Mason Univ, Geog Geoinformat Sci, Fairfax, VA USA.
RP Hunt, ER (reprint author), ARS, Hydrol & Remote Sensing Lab, USDA, Beltsville, MD USA.
EM Raymond.Hunt@ars.usda.gov
NR 12
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2153-6996
BN 978-1-4244-9566-5
J9 INT GEOSCI REMOTE SE
PY 2010
BP 3879
EP 3881
DI 10.1109/IGARSS.2010.5651587
PG 3
WC Geosciences, Multidisciplinary; Remote Sensing
SC Geology; Remote Sensing
GA BTS07
UT WOS:000287933804008
ER
PT S
AU Fusina, RA
Fry, JC
Nichols, CR
Bachmann, CM
Li, RR
Sellars, J
Parrish, C
Montes, MJ
Gross, C
White, SA
Lee, K
Jones, CA
AF Fusina, Robert A.
Fry, John C.
Nichols, C. Reid
Bachmann, Charles M.
Li, Rong-Rong
Sellars, Jon
Parrish, Chris
Montes, Marcos J.
Gross, Carl
White, Stephen A.
Lee, Krista
Jones, Christopher A.
GP IEEE
TI GEODATABASE DEVELOPMENT TO SUPPORT HYPERSPECTRAL IMAGERY EXPLOITATION
SO 2010 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM
SE IEEE International Symposium on Geoscience and Remote Sensing IGARSS
LA English
DT Proceedings Paper
CT 30th IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
on Remote Sensing - Global Vision for Local Action
CY JUN 25-30, 2010
CL Honolulu, HI
SP IEEE
DE geodatabase; coast type; hyperspectral imagery; ground control;
geospatial analysis
AB Geodatabase development for coastal studies conducted by the Naval Research Laboratory (NRL) is essential to support the exploitation of hyperspectral imagery (HSI). NRL has found that the remote sensing and mapping science community benefits from coastal classifications that group coastal types based on similar features. Selected features in project geodatabases relate to significant biological and physical forces that shape the coast. The project geodatabases help researchers understand factors that are necessary for imagery post processing, especially those features having a high degree of temporal and spatial variability. NRL project geodatabases include a hierarchy of environmental factors that extend from shallow water bottom types and beach composition to inland soil and vegetation characteristics. These geodatabases developed by NRL allow researchers to compare features among coast types. The project geodatabases may also be used to enhance littoral data archives that are sparse. This paper highlights geodatabase development for recent remote sensing experiments in barrier island, coral, and mangrove coast types.
C1 [Fusina, Robert A.; Bachmann, Charles M.; Li, Rong-Rong; Montes, Marcos J.; Gross, Carl] USN, Res Lab, Remote Sensing Div, Coastal Sci & Interpretat Sect, Code 7232,4555 Overlook Ave SW, Washington, DC 20375 USA.
[Fry, John C.; Nichols, C. Reid] Marine Informat Res Corp, Ellicott City, MD 21042 USA.
[Sellars, Jon; Parrish, Chris; White, Stephen A.] NOAA NOS, Natl Geodet Surv, Remote Sensing Div, Silver Spring, MD 20910 USA.
[Lee, Krista; Jones, Christopher A.] Naval Postgrad Sch, Remote Sensing Ctr, Dept Phys, Monterey, CA 93943 USA.
RP Fusina, RA (reprint author), USN, Res Lab, Remote Sensing Div, Coastal Sci & Interpretat Sect, Code 7232,4555 Overlook Ave SW, Washington, DC 20375 USA.
EM bachmann@nrl.navy.mil
RI Montes, Marcos/J-9239-2015
OI Montes, Marcos/0000-0002-4725-5380
NR 11
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2153-6996
BN 978-1-4244-9566-5
J9 INT GEOSCI REMOTE SE
PY 2010
BP 4224
EP 4227
DI 10.1109/IGARSS.2010.5654182
PG 4
WC Geosciences, Multidisciplinary; Remote Sensing
SC Geology; Remote Sensing
GA BTS07
UT WOS:000287933804096
ER
PT S
AU Bachmann, CM
Ainsworth, TL
Fusina, RA
Topping, R
Gates, T
AF Bachmann, Charles M.
Ainsworth, Thomas L.
Fusina, Robert A.
Topping, Rusty
Gates, Tell
GP IEEE
TI Manifold Coordinate Representations of Hyperspectral Imagery:
Improvements in Algorithm Performance and Computational Efficiency
SO 2010 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM
SE IEEE International Symposium on Geoscience and Remote Sensing IGARSS
LA English
DT Proceedings Paper
CT 30th IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
on Remote Sensing - Global Vision for Local Action
CY JUN 25-30, 2010
CL Honolulu, HI
SP IEEE
ID CLASSIFIERS
AB Several years ago, NRL first demonstrated a computationally efficient framework for optimizing a set of intrinsic manifold coordinates for high-dimensional data such as hyperspectral imagery (HIS). Since that time, NRL has continued to improve the fidelity of the representation to describe the details of the nonlinear structure in even greater detail. In addition, working closely with CelesTech, several improvements have been made that increase the computational efficiency, accelerating processing speeds from hours to minutes.
C1 [Bachmann, Charles M.; Ainsworth, Thomas L.; Fusina, Robert A.] USN, Res Lab, Remote Sensing Div, Coastal Sci & Interpretat Sect, Code 7232 4555 Overlook Ave SW, Washington, DC 20375 USA.
[Topping, Rusty; Gates, Tell] Celestech Inc, Phoenix, AZ 85048 USA.
RP Bachmann, CM (reprint author), USN, Res Lab, Remote Sensing Div, Coastal Sci & Interpretat Sect, Code 7232 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM bachmann@nrl.navy.mil; Rusty.Topping@celestech.com
NR 8
TC 5
Z9 5
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2153-6996
BN 978-1-4244-9566-5
J9 INT GEOSCI REMOTE SE
PY 2010
BP 4244
EP 4247
DI 10.1109/IGARSS.2010.5653550
PG 4
WC Geosciences, Multidisciplinary; Remote Sensing
SC Geology; Remote Sensing
GA BTS07
UT WOS:000287933804101
ER
PT J
AU Gao, BC
Li, RR
AF Gao, Bo-Cai
Li, Rong-Rong
GP IEEE
TI SPECTRAL CALIBRATIONS OF HICO DATA USING ATMOSPHERIC BANDS AND RADIANCE
ADJUSTMENT BASED ON HICO AND MODIS DATA COMPARISONS
SO 2010 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM
SE IEEE International Symposium on Geoscience and Remote Sensing IGARSS
LA English
DT Proceedings Paper
CT 30th IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
on Remote Sensing - Global Vision for Local Action
CY JUN 25-30, 2010
CL Honolulu, HI
SP IEEE
DE Imaging Spectrometer; Coastal water; HICO (TM); Hyperspectral imager;
Spectrum matching; Wavelength calibrations; Spectral resolution
calibration; Radiometric calibration; Vicarious calibration
AB The Hyperspectral Imager for the Coastal Ocean (HICO (TM)) instrument is now operating from a location on the Japanese Experiment Module-Exposed Facility (JEM-EF) on the International Space Station (ISS). HICO (TM) is a pushbroom sensor covering a spectral range between 0.35 and 1.08 micron with a spatial resolution of about 90 meter and a spectral sampling interval of 5.7 nanometer. The instrument is not equipped with radiometric and spectral calibration devices. Before shipping the HICO (TM) instrument to Japan to be launched on a Japanese HII-B rocket, spatial, spectral, and radiometric calibrations of the instrument were made in a calibration lab at the Naval Research Laboratory in Washington, DC. Based on the analysis of HICO data acquired from ISS, we have observed that the wavelengths of the HICO channels are slightly changed in comparison with those from laboratory calibrations. We have used a spectrum matching technique [2] for adjusting wavelengths. Several atmospheric water vapor and oxygen absorption bands in the HICO data measured under the normal operation mode with a spectral sampling interval of approximately 5.7 nm are used for spectrum matching. Four extra-terrestrial solar lines in the HICO data with a spectral spacing of 1.7 nm are also used for spectrum matching. The spectrum matching technique is described in this paper. Also based on analysis of ISS HICO data, we have found that the radiances of ISS HICO data calibrated with the laboratory-based coefficients are smaller than expected by approximately 25%. We have adjusted the calibration coefficients based on comparing HICO data and MODIS data acquired over several desert areas. The vicarious calibration procedure for HICO radiometric calibrations is also described in this paper.
C1 [Gao, Bo-Cai; Li, Rong-Rong] USN, Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
RP Gao, BC (reprint author), USN, Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
EM gao@nrl.navy.mil
NR 4
TC 0
Z9 0
U1 0
U2 3
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4244-9566-5
J9 INT GEOSCI REMOTE SE
PY 2010
BP 4260
EP 4263
DI 10.1109/IGARSS.2010.5649146
PG 4
WC Geosciences, Multidisciplinary; Remote Sensing
SC Geology; Remote Sensing
GA BTS07
UT WOS:000287933804105
ER
PT S
AU Hwang, PA
Sletten, MA
Toporkov, JV
Trizna, DB
AF Hwang, Paul A.
Sletten, Mark A.
Toporkov, Jakov V.
Trizna, Dennis B.
GP IEEE
TI DOPPLER PROCESSING OF COHERENT RADAR BACKSCATTER FOR OCEAN SURFACE WAVE
MEASUREMENTS
SO 2010 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM
SE IEEE International Symposium on Geoscience and Remote Sensing IGARSS
LA English
DT Proceedings Paper
CT 30th IEEE International Geoscience and Remote Sensing Symposium (IGARSS)
on Remote Sensing - Global Vision for Local Action
CY JUN 25-30, 2010
CL Honolulu, HI
SP IEEE
DE Surface wave height; Doppler velocity; Coherent radar
ID IMAGES
AB The technique for extracting wave period and wave direction from a navigation radar backscattering intensity is well developed but the determination of spectral density or wave height is hindered by the complex nature of the modulation transfer function. In contrast to backscattering intensity, Doppler velocity from coherent radar is the radial velocity of the scattering objects. Its oscillatory component is contributed by ocean waves. The spectral peak component of Doppler velocity is close to the peak wave period measured by a nearby buoy and the significant wave height can be accurately calculated. With radar range coverage on the order of ten dominant wavelengths, reliable assessment of peak wave period and significant wave height is achievable with radar data as short as one second. Wave direction can also be determined with a scanning system.
C1 [Hwang, Paul A.; Sletten, Mark A.; Toporkov, Jakov V.] USN, Remote Sensing Div, Res Lab, Washington, DC 20350 USA.
[Trizna, Dennis B.] Image Sci Res, Richmond, VA USA.
RP Hwang, PA (reprint author), USN, Remote Sensing Div, Res Lab, Washington, DC 20350 USA.
EM paul.hwang@nrl.navy.mil
FU Office of Naval Research [NRL/PP/726010-0186]
FX This work is sponsored by the Office of Naval Research; NRL contribution
number NRL/PP/726010-0186.
NR 11
TC 0
Z9 0
U1 1
U2 3
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2153-6996
BN 978-1-4244-9566-5
J9 INT GEOSCI REMOTE SE
PY 2010
BP 4733
EP 4736
DI 10.1109/IGARSS.2010.5653056
PG 4
WC Geosciences, Multidisciplinary; Remote Sensing
SC Geology; Remote Sensing
GA BTS07
UT WOS:000287933804228
ER
PT S
AU Liu, ST
Hurst, A
Hughes, HL
McMarr, P
Benedito, J
Capasso, C
AF Liu, S. T.
Hurst, A.
Hughes, H. L.
McMarr, P.
Benedito, J.
Capasso, C.
GP IEEE
TI Total dose radiation response of a 45nm SOI Technology
SO 2010 IEEE INTERNATIONAL SOI CONFERENCE
SE IEEE International SOI Conference
LA English
DT Proceedings Paper
CT International Silicon on Insulator (SOI) Conference
CY OCT 11-14, 2010
CL San Diego, CA
C1 [Liu, S. T.; Hurst, A.] TRUSTED Semicond Solut, Anoka, MN 55303 USA.
[Hughes, H. L.; McMarr, P.] Naval Res Lab, Washington, DC 20375 USA.
[Benedito, J.] Radiat Assured Devices, Colorado Springs, CO 80919 USA.
[Capasso, C.] Freescale Semicond, Austin, TX 78735 USA.
RP Liu, ST (reprint author), TRUSTED Semicond Solut, Anoka, MN 55303 USA.
NR 3
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1078-621X
BN 978-1-4244-9128-5
J9 IEEE INT SOI CONF
PY 2010
PG 2
WC Engineering, Electrical & Electronic; Materials Science,
Multidisciplinary
SC Engineering; Materials Science
GA BTM85
UT WOS:000287366100040
ER
PT S
AU Rezzak, N
Zhang, EX
Alles, ML
Schrimpf, RD
Hughes, H
AF Rezzak, Nadia
Zhang, En Xia
Alles, Michael L.
Schrimpf, Ronald D.
Hughes, Harold
GP IEEE
TI Total-Ionizing-Dose Radiation Response of Partially-Depleted SOI devices
SO 2010 IEEE INTERNATIONAL SOI CONFERENCE
SE IEEE International SOI Conference
LA English
DT Proceedings Paper
CT International Silicon on Insulator (SOI) Conference
CY OCT 11-14, 2010
CL San Diego, CA
AB The high body doping inherent in sub-100 nm partially-depleted SOI devices tends to mitigate the sensitivity to TID-induced leakage, providing that the doping reaches the STI sidewalls and back channel. Measured TID response on 45 nm NMOS SOI is consistent with trends observed in simulations.
C1 [Rezzak, Nadia; Zhang, En Xia; Alles, Michael L.; Schrimpf, Ronald D.] Vanderbilt Univ, VU Stn B 351825, Nashville, TN 37235 USA.
[Hughes, Harold] Naval Res Lab, Washington, DC 20375 USA.
RP Rezzak, N (reprint author), Vanderbilt Univ, VU Stn B 351825, Nashville, TN 37235 USA.
EM nadia.rezzak@vanderbilt.edu
FU NRL
FX We would like to acknowledge NRL for support.
NR 4
TC 0
Z9 0
U1 0
U2 3
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1078-621X
BN 978-1-4244-9128-5
J9 IEEE INT SOI CONF
PY 2010
PG 2
WC Engineering, Electrical & Electronic; Materials Science,
Multidisciplinary
SC Engineering; Materials Science
GA BTM85
UT WOS:000287366100042
ER
PT S
AU Jachowski, DR
Guyette, AC
AF Jachowski, Douglas R.
Guyette, Andrew C.
GP IEEE
TI Filter Technology for Spectrum Management
SO 2010 IEEE INTERNATIONAL SYMPOSIUM ON ELECTROMAGNETIC COMPATIBILITY (EMC
2010)
SE IEEE International Symposium on Electromagnetic Compatibility
LA English
DT Proceedings Paper
CT IEEE International Symposium on Electromagnetic Compatibility
CY JUL 25-30, 2010
CL Ft Lauderdale, FL
SP EMC Soc, IEEE
AB Some recent developments in filter technology at the Naval Research Laboratory will be described and the application of these technologies to spectrum management will be discussed.
C1 [Jachowski, Douglas R.; Guyette, Andrew C.] USN, Res Lab, Div Elect Sci & Technol, Microwave Technol Branch, Washington, DC 20375 USA.
RP Jachowski, DR (reprint author), USN, Res Lab, Div Elect Sci & Technol, Microwave Technol Branch, Washington, DC 20375 USA.
EM doug.jachowski@nrl.navy.mil; andrew.guyette@nrl.navy.mil
NR 14
TC 1
Z9 1
U1 0
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2158-110X
BN 978-1-4244-6307-7
J9 IEEE INT SYMP ELEC
PY 2010
BP 91
EP 96
DI 10.1109/ISEMC.2010.5711253
PG 6
WC Engineering, Electrical & Electronic
SC Engineering
GA BWU78
UT WOS:000294962100018
ER
PT S
AU Mallette, LA
White, J
Rochat, P
AF Mallette, Leo A.
White, Joe
Rochat, Pascal
GP IEEE
TI Space Qualified Frequency Sources (Clocks) for Current and Future GNSS
Applications
SO 2010 IEEE-ION POSITION LOCATION AND NAVIGATION SYMPOSIUM PLANS
SE IEEE-ION Position Location and Navigation Symposium
LA English
DT Proceedings Paper
CT Position Location and Navigation Symposium (PLANS)
CY MAY 04-06, 2010
CL Palm Springs, CA
SP IEEE, ION
DE GNSS; Atomic Clock; GLONASS; GPS; Galileo; QZSS; IRNSS; Compass
AB Accurate and stable frequency reference sources are critical for commercial, navigation, military and scientific space applications. Several levels of frequency references are suitable for space applications. This paper discusses similarities and differences among single distributed oscillators for communications satellites, master oscillator groups for communications systems, and atomic clocks for military and navigation systems. This paper builds on reference [1] and broadly describes frequency sources on current and upcoming global navigation satellite systems (GNSS). The three current systems are the Global Navigation Satellite System (GLONASS), the Global Positioning System (GPS), and the Galileo system. The upcoming navigation systems are: China's Compass satellite positioning system, Japan's quasi-zenith satellite system (QZSS), India's regional navigation satellite system (IRNSS), GPS-IIF, and GPS-III.
C1 [Mallette, Leo A.] Aerosp Corp, El Segundo, CA 90245 USA.
[White, Joe] US Naval Res Lab, Space Appl Branch, Washington, DC USA.
[Rochat, Pascal] Spectra Time Inc, Neuchatel, Switzerland.
RP Mallette, LA (reprint author), Aerosp Corp, El Segundo, CA 90245 USA.
EM Mallette@ieee.org; Joe.white@nrl.navy.mil; rochat@spectratime.com
NR 32
TC 0
Z9 0
U1 1
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 2153-358X
BN 978-1-4244-5037-4
J9 IEEE POSITION LOCAT
PY 2010
BP 522
EP 527
PG 6
WC Engineering, Marine; Engineering, Electrical & Electronic;
Telecommunications
SC Engineering; Telecommunications
GA BTO52
UT WOS:000287515800063
ER
PT S
AU Son, S
de Nolfo, GA
Dion, MP
Hunter, SD
Guardala, NA
AF Son, Seunghee
de Nolfo, Georgia A.
Dion, M. P.
Hunter, Stanley D.
Guardala, Noel A.
GP IEEE
TI Neutron Imaging Camera
SO 2010 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD (NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium (NSS)/Medical Imaging Conference
(MIC)/17th International Workshop on Room-Temperature Semiconductor
X-ray and Gamma-ray Detectors
CY OCT 30-NOV 06, 2010
CL Knoxville, TN
SP Inst Elect & Elect Engineers, Nucl & Plasma Sci Soc, IEEE
ID DIFFUSION
AB We describe the Neutron Imaging Camera (NIC) being developed for the detection of special nuclear material by NASA/Goddard Space Flight Center (GSFC) and NSWC/Carderock. The NIC is a self-contained, robust, omnidirectional, and 3 He-independent neutron detector based on the Three-Dimensional Track Imager (3-DTI) technology developed at GSFC for gamma-ray astrophysics applications. The 3-DTI, a large volume, gas, time-projection chamber, provides accurate, similar to 0.4 mm resolution, 3-D tracking of charged particles. The incident direction of fast neutrons, 0.1 MeV < E-n < 10 MeV, are reconstructed from the momenta and energies of the protons resulting from single and double (n, p) scatters in methane (CH4). We present angular and energy resolution performance of the NIC derived from the field test at Ft. Monroe, VA in September 2010.
C1 [Son, Seunghee; de Nolfo, Georgia A.; Hunter, Stanley D.] NASA, CRESST UMBC, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Dion, M. P.; Guardala, Noel A.] Carderock Divi, Naval Surface Warfare Ctr, Bethesda, MD 20817 USA.
RP Son, S (reprint author), NASA, CRESST UMBC, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
EM seunghee.son@nasa.gov
RI de Nolfo, Georgia/E-1500-2012;
OI Dion, Michael/0000-0002-3030-0050
FU Office of Naval Research M-WMD-D program
FX This work was supported in part by the Office of Naval Research M-WMD-D
program.
NR 7
TC 1
Z9 1
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4244-9106-3
J9 IEEE NUCL SCI CONF R
PY 2010
BP 298
EP 301
PG 4
WC Engineering, Electrical & Electronic; Nuclear Science & Technology;
Physics, Applied
SC Engineering; Nuclear Science & Technology; Physics
GA BBB94
UT WOS:000306402900063
ER
PT S
AU Christophersen, M
Phlips, BF
AF Christophersen, Marc
Phlips, Bernard F.
GP IEEE
TI Laser-Micromachining for 3D Silicon Detectors
SO 2010 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD (NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium (NSS)/Medical Imaging Conference
(MIC)/17th International Workshop on Room-Temperature Semiconductor
X-ray and Gamma-ray Detectors
CY OCT 30-NOV 06, 2010
CL Knoxville, TN
SP Inst Elect & Elect Engineers, Nucl & Plasma Sci Soc, IEEE
AB We laser-micromachined hole arrays into silicon with aspect ratios up to 100:1. Direct laser-drilling and trepanning were used. Since laser-machining leaves a damaged silicon region that is not suitable for detector fabrication, we removed the damaged silicon with an isotropic xenon difluoride etch step. Hole arrays with trepan drilled holes had lower leakage currents. We successfully collected a Co-57 photon spectrum (energy resolution: 3.0 keV FWHM at 122 KeV) with a 3D silicon detector based on trepan-drilled holes. Our results show that silicon laser-machining can be used for 3D detector fabrication with good charge collection propeties.
C1 [Christophersen, Marc; Phlips, Bernard F.] USN, Res Lab, Washington, DC 20375 USA.
RP Christophersen, M (reprint author), USN, Res Lab, Code 7654, Washington, DC 20375 USA.
EM marc.christophersen@nrl.navy.mil; bernard.phlips@nrl.navy.mil
RI Christophersen, Marc/B-6795-2008
NR 10
TC 1
Z9 1
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4244-9106-3
J9 IEEE NUCL SCI CONF R
PY 2010
BP 378
EP 381
PG 4
WC Engineering, Electrical & Electronic; Nuclear Science & Technology;
Physics, Applied
SC Engineering; Nuclear Science & Technology; Physics
GA BBB94
UT WOS:000306402900079
ER
PT S
AU Christophersen, M
Phlips, BF
AF Christophersen, Marc
Phlips, Bernard F.
GP IEEE
TI Laser-Induced Diffusion for Radiation Detector Development
SO 2010 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD (NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium (NSS)/Medical Imaging Conference
(MIC)/17th International Workshop on Room-Temperature Semiconductor
X-ray and Gamma-ray Detectors
CY OCT 30-NOV 06, 2010
CL Knoxville, TN
SP Inst Elect & Elect Engineers, Nucl & Plasma Sci Soc, IEEE
AB Prototyping of three-dimensional integrated circuits requires annealing of silicon junction at temperature below 450 degree C. Laser-annealing is one way to locally anneal a silicon junction. We laser-annealed spin-on-glass diffusion sources and ion-implanted phosphorous junctions. The laser was part of a commercial micro-machining system. We successfully made a laser-annealed ohmic back side contact for a silicon strip detector. An energy resolution of 8.0 keV FWHM at 122 keV was obtained.
C1 [Christophersen, Marc; Phlips, Bernard F.] USN, Res Lab, Washington, DC 20375 USA.
RP Christophersen, M (reprint author), USN, Res Lab, Code 7654, Washington, DC 20375 USA.
EM marc.christophersen@nrl.navy.mil; bernard.phlips@nrl.navy.mil
RI Christophersen, Marc/B-6795-2008
NR 6
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4244-9106-3
J9 IEEE NUCL SCI CONF R
PY 2010
BP 392
EP 395
PG 4
WC Engineering, Electrical & Electronic; Nuclear Science & Technology;
Physics, Applied
SC Engineering; Nuclear Science & Technology; Physics
GA BBB94
UT WOS:000306402900082
ER
PT S
AU Jackson, SL
Allen, RJ
Apruzese, JP
Commisso, RJ
Hinshelwood, DD
Mosher, D
Murphy, DP
Ottinger, PF
Schumer, JW
Swanekamp, SB
Young, FC
Cooperstein, G
Hunt, AW
Seipel, HA
Gagliardi, MA
AF Jackson, S. L.
Allen, R. J.
Apruzese, J. P.
Commisso, R. J.
Hinshelwood, D. D.
Mosher, D.
Murphy, D. P.
Ottinger, P. F.
Schumer, J. W.
Swanekamp, S. B.
Young, F. C.
Cooperstein, G.
Hunt, A. W.
Seipel, H. A.
Gagliardi, M. A.
GP IEEE
TI Detectors for intense, pulsed active detection
SO 2010 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD (NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium (NSS)/Medical Imaging Conference
(MIC)/17th International Workshop on Room-Temperature Semiconductor
X-ray and Gamma-ray Detectors
CY OCT 30-NOV 06, 2010
CL Knoxville, TN
SP Inst Elect & Elect Engineers, Nucl & Plasma Sci Soc, IEEE
ID NUCLEAR MATERIAL
AB In intense, pulsed active detection, a single, intense pulse of radiation is used to induce photofission in fissionable material, increasing its detectability. The Mercury pulsed-power generator was converted to positive polarity (+3.7 MV, 325 kA, 50-ns FWHM) to drive an intense, pulsed radiation source based on the FIGARO active detection concept. The probing radiation source consisted of an ion-beam diode and a thick PTFE (Teflon) converter where 6 - 7 MeV gamma-rays were produced via the F-19(p,alpha gamma)O-16 reaction. A suite of radiation detectors was used both to detect the presence of irradiated fissionable material and to characterize the probing radiation source. Four types of detectors were used for the source characterization. Thermoluminescent dosimeters were used to measure the angular distribution of the dose associated with x-rays and.-rays from the ion-beam diode. Plastic scintillator-photodiode detectors were used to characterize the time dependence of this dose. A plastic scintillator-photomultiplier detector was used to monitor the.-ray intensity of the probing radiation source and to monitor changes in the production of background neutrons by the diode and PTFE converter. A set of rhodium foil activation counters was used to measure the absolute yield of these background neutrons. Two types of detectors with comparable sensitivities were used to measure delayed neutrons resulting from photofission: He-3 proportional counters and a Li-6-loadedglass-scintillator detector. The neutron detection rate from each detector following the probing radiation pulse was over 100 times higher with depleted uranium present than with lead.
C1 [Jackson, S. L.; Allen, R. J.; Apruzese, J. P.; Commisso, R. J.; Hinshelwood, D. D.; Murphy, D. P.; Ottinger, P. F.; Schumer, J. W.; Swanekamp, S. B.; Cooperstein, G.] USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
[Mosher, D.; Swanekamp, S. B.; Young, F. C.] L 3 Commun, Chantilly, VA 20151 USA.
[Hunt, A. W.; Seipel, H. A.; Gagliardi, M. A.] Idaho State Univ, Idaho Accelerator Ctr, Pocatello, ID 83209 USA.
[Hunt, A. W.; Seipel, H. A.; Gagliardi, M. A.] Idaho State Univ, Dept Phys, Pocatello, ID 83209 USA.
RP Jackson, SL (reprint author), USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
EM stuart.jackson@nrl.navy.mil; alwhunt@iac.isu.edu
FU Office of Naval Research
FX Manuscript received November 21, 2010. This work was supported by the
Office of Naval Research.
NR 22
TC 2
Z9 2
U1 0
U2 3
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4244-9106-3
J9 IEEE NUCL SCI CONF R
PY 2010
BP 516
EP 523
PG 8
WC Engineering, Electrical & Electronic; Nuclear Science & Technology;
Physics, Applied
SC Engineering; Nuclear Science & Technology; Physics
GA BBB94
UT WOS:000306402900110
ER
PT S
AU Swanekamp, SB
Apruzese, JP
Commisso, RJ
Mosher, D
Schumer, JW
AF Swanekamp, Stephen B.
Apruzese, John P.
Commisso, Robert J.
Mosher, David
Schumer, Joseph W.
GP IEEE
TI An Analysis of Intense Pulsed Active Detection (IPAD) for the Detection
of Special Nuclear Materials
SO 2010 IEEE NUCLEAR SCIENCE SYMPOSIUM CONFERENCE RECORD (NSS/MIC)
SE IEEE Nuclear Science Symposium Conference Record
LA English
DT Proceedings Paper
CT IEEE Nuclear Science Symposium (NSS)/Medical Imaging Conference
(MIC)/17th International Workshop on Room-Temperature Semiconductor
X-ray and Gamma-ray Detectors
CY OCT 30-NOV 06, 2010
CL Knoxville, TN
SP Inst Elect & Elect Engineers, Nucl & Plasma Sci Soc, IEEE
AB This paper analyzes the Intense Pulsed Active Detection (IPAD) approach for active detection of fissile material, highlights some of its merits, and compares it to the multiple-pulse-train LINAC approach. In both cases, bremsstrahlung photons are used to induce fissions. IPAD's single, 100-ns bremsstrahlung pulse offers the possibility to utilize prompt as well as delayed neutrons emitted during the fission process. A combination of the ITS and MCNPX codes is used to characterize the dose to human tissue and both the prompt and delayed neutron emissions from the induced fissions for incident bremsstrahlung spectra between 6 and 50 MeV. No effects from shielding or from the interaction of the bremsstrahlung with the environment (water, air, etc) have been included in these computations, but these effects are a topic of ongoing work. Curves are developed that give the number of useful prompt neutrons per unit dose and the total number of delayed neutrons per unit dose that are independent of both the total electron charge delivered to the bremsstrahlung converter and the source-to-object distance. Useful prompt neutrons are defined to be those with energies exceeding the highest energy photo-neutron expected from Pb-207 for a given bremsstrahlung endpoint energy. The analysis shows that endpoint energies between 9 and 13 MeV are optimum for the production of useful prompt neutrons/dose. Because the prompt signal is very fast, the detection of just two useful prompt neutrons gives a false alarm rate from cosmic-ray neutrons of less than 1 in 10(6). The analysis for delayed neutrons shows that above 14 MeV endpoint energies, both the neutron production and the dose increase as the endpoint energy squared. This suggests that, for a fixed body dose, no additional delayed neutrons are created above an endpoint energy of 14 MeV. A comparison of the multiple-pulse pulse-train LINAC approach and the single-pulse IPAD approach for detecting delayed neutrons is also presented. Because the 3-s detection time for the IPAD system is so much shorter than the 120-s detection time for the LINAC system, the IPAD system produces a signal that is much easier to separate from the cosmic-ray neutron background. This shorter time allows an IPAD system to detect fissile objects with 100% detection rate at a false alarm rate from cosmic-ray neutrons of less than 10(-6) compared with a 50% detection rate for a 10% false alarm rate for the LINAC approach. Alternatively, the same detection efficiency as the LINAC approach is obtained with the detector about 2.7 times farther away from the fissile object.
C1 [Swanekamp, Stephen B.; Commisso, Robert J.; Schumer, Joseph W.] USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
[Apruzese, John P.; Mosher, David] L3 Commun, Washington, DC USA.
RP Swanekamp, SB (reprint author), USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
EM Steve.Swanekamp@nrl.nany.mil; John.Apruzese@nrl.navy.mil;
Robert.Commisso@nrl.navy.mil; David.Mosher@nrl.navy.mil;
Joseph.Schumer@nrl.navy.mil
NR 8
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1082-3654
BN 978-1-4244-9106-3
J9 IEEE NUCL SCI CONF R
PY 2010
BP 881
EP 888
PG 8
WC Engineering, Electrical & Electronic; Nuclear Science & Technology;
Physics, Applied
SC Engineering; Nuclear Science & Technology; Physics
GA BBB94
UT WOS:000306402901005
ER
PT S
AU Foreman, TL
AF Foreman, Terry L.
GP IEEE
TI Application of the CLEAN Detector to Low Signal to Noise Ratio Targets
SO 2010 IEEE RADAR CONFERENCE
SE IEEE National Radar Conference Proceedings
LA English
DT Proceedings Paper
CT 2010 IEEE Radar Conference
CY MAY 10-14, 2010
CL Washington, DC
SP IEEE
ID IMAGES
AB This paper expands on the author's previous work by adapting the CLEAN algorithm to address low signal to noise (SNR) targets. The Reformulated CLEAN Detector is presented which is shown to allow the detection of low SNR targets in the presence of large targets. Performance results are presented that show how good performance can be attained by combining the correlator, CLEAN Deconvolver and Reformulated CLEAN Detector
C1 USN, Ctr Surface Warfare, Dahlgren Div, Electromagnet & Sensors Syst Dept, Dahlgren, VA 22448 USA.
RP Foreman, TL (reprint author), USN, Ctr Surface Warfare, Dahlgren Div, Electromagnet & Sensors Syst Dept, Dahlgren, VA 22448 USA.
NR 13
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1097-5659
BN 978-1-4244-5812-7
J9 IEEE NATL RADAR CONF
PY 2010
BP 150
EP 155
DI 10.1109/RADAR.2010.5494636
PG 6
WC Engineering, Electrical & Electronic; Physics, Applied;
Telecommunications
SC Engineering; Physics; Telecommunications
GA BTO60
UT WOS:000287532500030
ER
PT S
AU Casey, TS
Foreman, TL
LeFurjah, G
AF Casey, T. Scott
Foreman, Terry L.
LeFurjah, George
GP IEEE
TI Sidelobe Clutter Modeling for Land-Based Radars in Mountainous Terrain
SO 2010 IEEE RADAR CONFERENCE
SE IEEE National Radar Conference Proceedings
LA English
DT Proceedings Paper
CT 2010 IEEE Radar Conference
CY MAY 10-14, 2010
CL Washington, DC
SP IEEE
DE Distribution Statement A: Approved for Public Release
AB This paper will introduce a new technique for modeling sidelobe clutter in mountainous terrain, while expanding upon our previous work in modeling three-dimensional aspects of clutter. The method was developed, in part, to overcome the limitations of electromagnetic parabolic wave equation (PWE) models with regards to complex antenna patterns. This technique also produces a more accurate representation of the clutter versus our previous methods.
C1 [Casey, T. Scott; Foreman, Terry L.; LeFurjah, George] USN, Ctr Surface Warfare, Dahlgren Div, Electromagnet & Sensors Syst Dept, Dahlgren, VA 22448 USA.
RP Casey, TS (reprint author), USN, Ctr Surface Warfare, Dahlgren Div, Electromagnet & Sensors Syst Dept, Dahlgren, VA 22448 USA.
NR 5
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1097-5659
BN 978-1-4244-5812-7
J9 IEEE NATL RADAR CONF
PY 2010
BP 168
EP 172
DI 10.1109/RADAR.2010.5494631
PG 5
WC Engineering, Electrical & Electronic; Physics, Applied;
Telecommunications
SC Engineering; Physics; Telecommunications
GA BTO60
UT WOS:000287532500033
ER
PT S
AU Wang, L
Cheney, M
Borden, B
AF Wang, Ling
Cheney, Margaret
Borden, Brett
GP IEEE
TI Multistatic Radar Imaging of Moving Targets
SO 2010 IEEE RADAR CONFERENCE
SE IEEE National Radar Conference Proceedings
LA English
DT Proceedings Paper
CT 2010 IEEE Radar Conference
CY MAY 10-14, 2010
CL Washington, DC
SP IEEE
ID SYNTHETIC-APERTURE INVERSION; TOMOGRAPHY
AB We develop a linearized imaging theory that combines the spatial, temporal, and spectral aspects of scattered waves. We consider the case of fixed sensors and a general distribution of objects, each undergoing linear motion; thus the theory deals with imaging distributions in phase space. We derive a model for the data that is appropriate for narrowband waveforms in the case when the targets are moving slowly relative to the speed of light. From this model, we develop a phase-space imaging formula that can be interpreted in terms of filtered backprojection or matched filtering. For this imaging approach, we derive the corresponding phase-space point-spread function. We show plots of the phase-space point-spread function for various geometries, and various combinations of waveforms.
C1 [Wang, Ling] Nanjing Univ Aeronaut & Astronaut, Coll Informat Sci & Technol, Nanjing 210016, Peoples R China.
[Cheney, Margaret] Rensselaer Polytech Inst, Troy, NY 12181 USA.
[Borden, Brett] US Navy, Postgrad Sch, Monterey, CA 93943 USA.
RP Wang, L (reprint author), Nanjing Univ Aeronaut & Astronaut, Coll Informat Sci & Technol, Nanjing 210016, Peoples R China.
FU Air Force Office of Scientific Research [FA9550-06-1-0017,
FA9550-09-1-0013]
FX This work was supported by the Air Force Office of Scientific Research
under Agreements FA9550-06-1-0017 and FA9550-09-1-0013.
NR 23
TC 8
Z9 8
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1097-5659
BN 978-1-4244-5812-7
J9 IEEE NATL RADAR CONF
PY 2010
BP 391
EP 396
DI 10.1109/RADAR.2010.5494589
PG 6
WC Engineering, Electrical & Electronic; Physics, Applied;
Telecommunications
SC Engineering; Physics; Telecommunications
GA BTO60
UT WOS:000287532500075
ER
PT S
AU Paek, EG
Choe, JY
AF Paek, Eung-Gi
Choe, Joon Y.
GP IEEE
TI Distributed Time Reversal Mirror Array
SO 2010 IEEE RADAR CONFERENCE
SE IEEE National Radar Conference Proceedings
LA English
DT Proceedings Paper
CT 2010 IEEE Radar Conference
CY MAY 10-14, 2010
CL Washington, DC
SP IEEE
AB An array of independent, separate, distributed time-reversal mirrors (TRMs) that can function as a large array in a coherent (collective and co-operative) manner is described. Due to the unique feature of time-reversal to compensate for the propagation delay after round-trip, the DTRMA can perform coherent integration of signals across the array through distorting media without the need for complicated array calibration and precise geo-location procedures, even after the location of a TRM has been changed. Several proof-of-concept experimental results to show both temporal and spatial focusing properties of the DTRMA are demonstrated using commercially available off-the-shelf components and instruments.
C1 [Paek, Eung-Gi; Choe, Joon Y.] USN, Div Radar, Res Lab, Washington, DC 20375 USA.
RP Paek, EG (reprint author), USN, Div Radar, Res Lab, Washington, DC 20375 USA.
EM paek@nrl.navy.mil
NR 4
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1097-5659
BN 978-1-4244-5812-7
J9 IEEE NATL RADAR CONF
PY 2010
BP 627
EP 630
DI 10.1109/RADAR.2010.5494545
PG 4
WC Engineering, Electrical & Electronic; Physics, Applied;
Telecommunications
SC Engineering; Physics; Telecommunications
GA BTO60
UT WOS:000287532500119
ER
PT S
AU Raj, RG
Chen, VC
Lipps, R
AF Raj, Raghu G.
Chen, Victor C.
Lipps, Ronald
GP IEEE
TI A Greedy Approach for Sparse Angular Aperture Radar
SO 2010 IEEE RADAR CONFERENCE
SE IEEE National Radar Conference Proceedings
LA English
DT Proceedings Paper
CT 2010 IEEE Radar Conference
CY MAY 10-14, 2010
CL Washington, DC
SP IEEE
AB We present a novel algorithm for radar imaging of point scatterers using a sparse number of spatially separated sensors. Such sparse sensing scenarios are prototypical of many applications wherein a limited number of sensors are distributed over a geographical area; or where environmental and/or systemic constraints enforce a sparse sampling of angular aperture. Our underlying assumption is that the image is sparse with respect to the Gabor basis set. We then introduce the concept of an orbit-viz. the locus of all projections made by a spatial basis-and formulate the radar imaging problem as that of sparsifying the number of orbits that comprise the radon measurements of the source. We demonstrate how our algorithm outperforms FFT-based and Compressive-sensing based reconstruction algorithms for point-scatterer images, describe relevant theoretical performance bounds of our algorithm, and point to future research arising from this work.
C1 [Raj, Raghu G.; Chen, Victor C.; Lipps, Ronald] USN, Res Lab, Div Radar, Washington, DC 20375 USA.
RP Raj, RG (reprint author), USN, Res Lab, Div Radar, Washington, DC 20375 USA.
NR 8
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1097-5659
BN 978-1-4244-5812-7
J9 IEEE NATL RADAR CONF
PY 2010
BP 673
EP 677
DI 10.1109/RADAR.2010.5494538
PG 5
WC Engineering, Electrical & Electronic; Physics, Applied;
Telecommunications
SC Engineering; Physics; Telecommunications
GA BTO60
UT WOS:000287532500128
ER
PT S
AU Farshchian, M
Posner, FL
AF Farshchian, Masoud
Posner, Fred L.
GP IEEE
TI The Pareto distribution for low grazing angle and high resolution X-band
sea clutter
SO 2010 IEEE RADAR CONFERENCE
SE IEEE National Radar Conference Proceedings
LA English
DT Proceedings Paper
CT 2010 IEEE Radar Conference
CY MAY 10-14, 2010
CL Washington, DC
SP IEEE
ID MAXIMUM-LIKELIHOOD-ESTIMATION
AB A radar pulse that impinges upon a radar resolution area of the sea surface produces backscattered returns which are called sea clutter. For low grazing angles and very fine radar cell resolution areas, the clutter intensity distribution departs significantly from the exponential distribution. In this case, the clutter is said to display spiky behavior and the distribution of the intensity develops a much longer tail relative to the exponential distribution. Statistical analysis of collected data near a grazing angle of 0.2 degrees at X-band from the sea off the coast of Kauai, Hawaii are examined relative to the log-normal, Weibull and K distributions. Based on an analogy of sea clutter and other disciplines including computer networks and finance, we also apply the Pareto distribution to the collected data. We also compare the data to the WW and KK two-population mixture distributions. Maximum likelihood estimation of the parameters of the distributions are obtained from the measured data. In all cases, the two population mixture distributions and the Pareto distribution are more accurate than the three classical distributions. However the Pareto distribution has the advantage of being an analytically tractable two parameter distribution while having similar accuracy to the five parameter WW and KK at critical values.
C1 [Farshchian, Masoud; Posner, Fred L.] USN, Res Lab, Stennis Space Ctr, MS 39529 USA.
RP Farshchian, M (reprint author), USN, Res Lab, Stennis Space Ctr, MS 39529 USA.
NR 14
TC 42
Z9 48
U1 0
U2 3
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1097-5659
BN 978-1-4244-5812-7
J9 IEEE NATL RADAR CONF
PY 2010
BP 789
EP 793
DI 10.1109/RADAR.2010.5494513
PG 5
WC Engineering, Electrical & Electronic; Physics, Applied;
Telecommunications
SC Engineering; Physics; Telecommunications
GA BTO60
UT WOS:000287532500149
ER
PT S
AU Gray, JE
AF Gray, John E.
GP IEEE
TI An Interpretation of Woodward's Ambiguity Function and Its
Generalization
SO 2010 IEEE RADAR CONFERENCE
SE IEEE National Radar Conference Proceedings
LA English
DT Proceedings Paper
CT 2010 IEEE Radar Conference
CY MAY 10-14, 2010
CL Washington, DC
SP IEEE
AB We suggest a new interpretation of Woodward's ambiguity function as the expected value of an operator. The operator represents the physics of the interaction of the waveform with the object. This approach provides a new approach to understanding the return signal at the receiver and can reveal more detailed understanding of the underlying interactions within the return signal that are not usually brought out by standard signal processing techniques.
C1 USN, Electromagnet & Sensor Syst Dept, Surface Warfare Ctr Dahlgren, Dahlgren, VA 22448 USA.
RP Gray, JE (reprint author), USN, Electromagnet & Sensor Syst Dept, Surface Warfare Ctr Dahlgren, Code Q-23,18444 Frontage Rd,Suite 328, Dahlgren, VA 22448 USA.
EM DLGR-NSWC-Q23@navy.mil
NR 18
TC 2
Z9 2
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1097-5659
BN 978-1-4244-5812-7
J9 IEEE NATL RADAR CONF
PY 2010
BP 859
EP 864
DI 10.1109/RADAR.2010.5494499
PG 6
WC Engineering, Electrical & Electronic; Physics, Applied;
Telecommunications
SC Engineering; Physics; Telecommunications
GA BTO60
UT WOS:000287532500163
ER
PT S
AU Chen, RC
AF Chen, Richard C.
GP IEEE
TI Range Profile Specific Optimal Waveforms for Minimum Mean Square Error
Estimation
SO 2010 IEEE RADAR CONFERENCE
SE IEEE National Radar Conference Proceedings
LA English
DT Proceedings Paper
CT 2010 IEEE Radar Conference
CY MAY 10-14, 2010
CL Washington, DC
SP IEEE
AB Optimal waveforms for minimum mean square error range profile estimation are investigated. An idealized measurement and waveform adaptation process is developed that yields optimal scene and range specific waveforms. This process is idealized in that during each cycle of the process, a large number of dwells are required. As part of our method, a modified version of the Adaptive Pulse Compression (APC) estimation method is used to estimate the range profile after each dwell cycle. The proposed method is analogous to the APC method in that it yields a set of range specific optimal waveforms, while the APC method yields a set of range specific optimal pulse compression filters. In certain scenarios, the measurement and waveform adaptation process yields range profile estimates that are significantly better than those derived by the APC method alone.
C1 USN, Div Radar, Res Lab, Washington, DC 20375 USA.
RP Chen, RC (reprint author), USN, Div Radar, Res Lab, Washington, DC 20375 USA.
EM richard.chen@nrl.navy.mil
NR 4
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1097-5659
BN 978-1-4244-5812-7
J9 IEEE NATL RADAR CONF
PY 2010
BP 1042
EP 1047
DI 10.1109/RADAR.2010.5494465
PG 6
WC Engineering, Electrical & Electronic; Physics, Applied;
Telecommunications
SC Engineering; Physics; Telecommunications
GA BTO60
UT WOS:000287532500197
ER
PT S
AU Marshall, R
Wiss, V
Horgan, K
Thornton, W
Burgess, E
AF Marshall, Robert
Wiss, Victor
Horgan, Katherine
Thornton, William
Burgess, Edward
GP IEEE
TI Extreme Extended Multi-wavelength Propagation due to Hot and Dry Air
Flowing Over the Persian Gulf
SO 2010 IEEE RADAR CONFERENCE
SE IEEE National Radar Conference Proceedings
LA English
DT Proceedings Paper
CT 2010 IEEE Radar Conference
CY MAY 10-14, 2010
CL Washington, DC
SP IEEE
AB Shallow surface radio frequency (RF) trapping layers or ducts form in stable internal boundary layers (SIBL) when warm dry air flows offshore over colder and more humid sea surfaces. Depending on wind speed and land sea temperature difference, these surface ducts can exist for hundreds of kilometers offshore and trap radar energy in layers below 100m above sea level. This paper describes the performance of notional shore based S, C and X band radars during a SIBL event. The three dimensional (3D) verified refractivity field is modeled by the Coupled Ocean Atmosphere Mesoscale Prediction System (COAMPS (R)). The radar performance is modeled by the Advanced Refractive Effects Prediction System (AREPS).
C1 [Marshall, Robert; Wiss, Victor; Horgan, Katherine; Thornton, William; Burgess, Edward] USN, Ctr Surface Warfare, Dahlgren Lab, Electromagnet & Sensor Syst Dept, Dahlgren, VA 22448 USA.
RP Marshall, R (reprint author), USN, Ctr Surface Warfare, Dahlgren Lab, Electromagnet & Sensor Syst Dept, Dahlgren, VA 22448 USA.
EM robert.e.marshall@navy.mil
NR 4
TC 0
Z9 0
U1 0
U2 3
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1097-5659
BN 978-1-4244-5812-7
J9 IEEE NATL RADAR CONF
PY 2010
BP 1117
EP 1122
DI 10.1109/RADAR.2010.5494454
PG 6
WC Engineering, Electrical & Electronic; Physics, Applied;
Telecommunications
SC Engineering; Physics; Telecommunications
GA BTO60
UT WOS:000287532500210
ER
PT S
AU Garzarella, A
Wu, DH
Crim, JB
AF Garzarella, Anthony
Wu, Dong Ho
Crim, John B.
GP IEEE
TI An All-Dielectric, 3-Axis Electric Field Sensor Using
Quasi-Longitudinally Configured Electro-Optic Crystals
SO 2010 IEEE SENSORS
SE IEEE Sensors
LA English
DT Proceedings Paper
CT 2010 IEEE Sensors Conference
CY NOV 01-04, 2010
CL Kona, HI
SP IEEE
AB We describe a stabilized, all-dielectric, 3-axis electric field sensor using electro-optic (EO) crystals. By directing the laser probe quasi-longitudinally with respect to the optic axis of the crystal, we have improved stability by three orders of magnitude and substantially reduced phase noise. While the modulation depth of the output signal is slightly reduced, overall sensitivity is greatly improved due to the larger signal to noise ratio. Unlike conventional EO sensors, measurements can be made with 50 meters of optical fibers without excessive noise. Additionally, the sensor and fibers can be moved during measurements without the need for compensation optics or recalibration. This makes the sensor very practical for actual field test applications and attractive for potential commercial use.
C1 [Garzarella, Anthony; Wu, Dong Ho] USN, Res Lab, Washington, DC 20375 USA.
[Crim, John B.] Naval Air Warfare Ctr, Naval Electmagnet Radiat Facil, Patuxent River, MD USA.
RP Garzarella, A (reprint author), USN, Res Lab, Washington, DC 20375 USA.
EM tony.garzarella@nrl.navy.mil
FU T&E/S&T Program through U.S. Army Program Executive Office for
Simulation, Training and Instrumentation
FX This work is funded by the T&E/S&T Program through the U.S.
Army Program Executive Office for Simulation, Training and
Instrumentation.
NR 5
TC 2
Z9 2
U1 2
U2 4
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1930-0395
BN 978-1-4244-8168-2
J9 IEEE SENSOR
PY 2010
BP 983
EP 986
DI 10.1109/ICSENS.2010.5690916
PG 4
WC Engineering, Electrical & Electronic; Instruments & Instrumentation
SC Engineering; Instruments & Instrumentation
GA BTS59
UT WOS:000287982100218
ER
PT S
AU Pruessner, MW
Stievater, TH
Rabinovich, WS
Bass, R
Boos, JB
AF Pruessner, Marcel W.
Stievater, Todd H.
Rabinovich, William S.
Bass, Robert
Boos, J. Brad
GP IEEE
TI Chip-Scale Wavelength-Division Multiplexed Integrated Sensor Arrays
SO 2010 IEEE SENSORS
SE IEEE Sensors
LA English
DT Proceedings Paper
CT 2010 IEEE Sensors Conference
CY NOV 01-04, 2010
CL Kona, HI
SP IEEE
AB We demonstrate a wavelength-division multiplexing (WDM) technique for interrogating multiple sensors on a single chip. While wavelength-and frequency-division multiplexing (FDM) has previously been demonstrated in micro-electromechanical (MEMS) sensors, numerous off-chip components were required thereby increasing the system size and limiting the number of sensors. In contrast, our approach enables all components to be developed on-chip. The high Q-factor afforded by optical microcavities enables a large number of sensor elements to be interrogated using WDM. First, we demonstrate wavelength-enabled addressing of individual sensors. Next, we show how two sensors can be individually interrogated in a sensor network. Finally, we illustrate how such "sensor-networks on a chip" are fabricated. The ability to develop large-scale arrays, where each sensor has been functionalized to respond to a different analyte, enables increased selectivity for MEMS resonant chemical sensors.
C1 [Pruessner, Marcel W.; Stievater, Todd H.; Rabinovich, William S.] USN, Res Lab, Div Opt Sci, Washington, DC 20375 USA.
[Bass, Robert; Boos, J. Brad] USN, Res Lab, Div Elect Sci & Technol, Washington, DC 20375 USA.
RP Pruessner, MW (reprint author), USN, Res Lab, Div Opt Sci, Washington, DC 20375 USA.
FU Office of Naval Research (ONR)
FX This work was funded by the Office of Naval Research (ONR).
NR 9
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1930-0395
BN 978-1-4244-8168-2
J9 IEEE SENSOR
PY 2010
BP 2049
EP 2052
DI 10.1109/ICSENS.2010.5690293
PG 4
WC Engineering, Electrical & Electronic; Instruments & Instrumentation
SC Engineering; Instruments & Instrumentation
GA BTS59
UT WOS:000287982100450
ER
PT S
AU Touse, M
Sinibaldi, J
Karunasiri, G
AF Touse, Michael
Sinibaldi, Jose
Karunasiri, Gamani
GP IEEE
TI MEMS Directional Sound Sensor with Simultaneous Detection of Two
Frequency Bands
SO 2010 IEEE SENSORS
SE IEEE Sensors
LA English
DT Proceedings Paper
CT 2010 IEEE Sensors Conference
CY NOV 01-04, 2010
CL Kona, HI
SP IEEE
ID FLY ORMIA-OCHRACEA; COUPLED EARS
AB Conventional directional sound sensing systems use an array of spatially separated microphones to achieve directional sensing by monitoring the arrival times and amplitudes at each microphone. The directional accuracy is then determined by the spatial separation of the microphones. In contrast, the Ormia ochracea fly's ears are separated by merely 500 mu m yet have remarkable sensitivity to the direction of sound even at wavelengths two orders of magnitude greater than the size of the fly's hearing structure. The fly uses a unique system which consists of two identical wings hinged at the center to determine the direction of sound. Recently, our group demonstrated a MEMS-based directional sound sensor modeled on the hearing system of the fly. The sensor response has two resonant modes (rocking and bending) and a strong response was only achieved at the bending frequency since the amplitude of the rocking mode depends on the tiny pressure difference between the two wings. In this paper, we report achievement of dual-band sensing using asymmetric wings to enhance the response at the rocking frequency. The fabricated sensor showed nearly equal responses at the rocking and bending frequencies.
C1 [Touse, Michael; Sinibaldi, Jose; Karunasiri, Gamani] USN, Dept Phys, Postgrad Sch, Monterey, CA 93943 USA.
RP Touse, M (reprint author), USN, Dept Phys, Postgrad Sch, Monterey, CA 93943 USA.
EM mptouse@nps.edu
NR 7
TC 8
Z9 8
U1 3
U2 7
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1930-0395
BN 978-1-4244-8168-2
J9 IEEE SENSOR
PY 2010
BP 2422
EP 2425
DI 10.1109/ICSENS.2010.5690773
PG 4
WC Engineering, Electrical & Electronic; Instruments & Instrumentation
SC Engineering; Instruments & Instrumentation
GA BTS59
UT WOS:000287982100537
ER
PT J
AU Geiger, DJ
AF Geiger, Douglas J.
GP IEEE
TI High Resolution Time Difference of Arrival Using Timestamps for
Localization in 802.11b/g Wireless Networks
SO 2010 IEEE WIRELESS COMMUNICATIONS AND NETWORKING CONFERENCE (WCNC 2010)
LA English
DT Proceedings Paper
CT IEEE Wireless Communications and Networking Conference (WCNC)
CY APR 18-21, 2010
CL Sydney, AUSTRALIA
SP IEEE
AB Localization of mobile devices is an area of much interest in both the commercial, and government sectors. One particular method of localization uses time-difference of arrival (TDoA) measurements from multiple receivers. This can be done using shared timestamps indicating the time of arrival (ToA) among distributed receivers. High resolution timestamps are particularly important to ensure reasonable spatial resolution of the localization method. This paper presents a method to obtain high-resolution time-of-arrival stamps for 802.11b frames based on matched filtering and time-averaged power. This method can be extended to the higher data rates used by 802.11g.
C1 USN, Res Lab, Washington, DC 20375 USA.
RP Geiger, DJ (reprint author), USN, Res Lab, Washington, DC 20375 USA.
NR 11
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4244-6398-5
PY 2010
PG 6
WC Engineering, Electrical & Electronic; Telecommunications
SC Engineering; Telecommunications
GA BYL10
UT WOS:000299203102052
ER
PT S
AU Amusan, OA
Bhuva, BL
Casey, MC
Gadlage, MJ
McMorrow, D
Melinger, JS
Massengill, LW
AF Amusan, O. A.
Bhuva, B. L.
Casey, M. C.
Gadlage, M. J.
McMorrow, D.
Melinger, J. S.
Massengill, L. W.
GP IEEE
TI Test Circuit for Measuring Single-Event-Induced Charge Sharing in
Deep-Submicron Technologies
SO 2010 INTERNATIONAL CONFERENCE ON MICROELECTRONIC TEST STRUCTURES, 23RD
IEEE ICMTS CONFERENCE PROCEEDINGS
SE IEEE International Conference on Microelectronic Test Structures
LA English
DT Proceedings Paper
CT IEEE 23rd International Conference on Microelectronic Test Structures
(ICMTS)
CY MAR 22-25, 2010
CL Hiroshima, JAPAN
SP IEEE
DE charge collection; charge sharing; on-chip test circuit; single event
circuit characterization; two-photon absorption
ID 90 NM CMOS; 2-PHOTON ABSORPTION; UPSETS
AB A novel on-chip test circuit to measure single-event-induced charge sharing has been developed and implemented in an IBM 90 nm process. Test measurements with Two-Photon Absorption (TPA) backside laser irradiation helps demonstrate the effectiveness of the test circuit in characterizing charge sharing effects for sub-100 nm bulk CMOS processes.
C1 [Amusan, O. A.] Lockheed Martin, Bethesda, MD USA.
[Casey, M. C.] NASA, Washington, DC 20024 USA.
[Bhuva, B. L.; Gadlage, M. J.; Massengill, L. W.] Vanderbilt Univ, Dept Elect Engn & Comp Sci, Nashville, TN 37235 USA.
[McMorrow, D.; Melinger, J. S.] Naval Res Lab, Washington, DC 20375 USA.
RP Amusan, OA (reprint author), Lockheed Martin, Bethesda, MD USA.
EM oluwole.a.amusan@lmco.com; bhuva@eecsmail.vuse.vanderbilt.edu;
megan.c.casey@vanderbilt.edu; mcmorrow@ccs.nrl.navy.mil
NR 7
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1071-9032
BN 978-1-4244-6915-4
J9 IEEE INT C MICROELEC
PY 2010
BP 114
EP 117
DI 10.1109/ICMTS.2010.5466844
PG 4
WC Engineering, Electrical & Electronic; Nanoscience & Nanotechnology
SC Engineering; Science & Technology - Other Topics
GA BTM87
UT WOS:000287371500023
ER
PT J
AU Ali, A
Madan, H
Misra, R
Hwang, E
Agrawal, A
Ramirez, I
Schiffer, P
Jackson, TN
Mohney, SE
Boos, JB
Bennett, BR
Geppert, I
Eizenberg, M
Datta, S
AF Ali, A.
Madan, H.
Misra, R.
Hwang, E.
Agrawal, A.
Ramirez, I.
Schiffer, P.
Jackson, T. N.
Mohney, S. E.
Boos, J. B.
Bennett, B. R.
Geppert, I.
Eizenberg, M.
Datta, S.
GP IEEE
TI Advanced Composite High-kappa Gate Stack for Mixed Anion
Arsenide-Antimonide Quantum Well Transistors
SO 2010 INTERNATIONAL ELECTRON DEVICES MEETING - TECHNICAL DIGEST
SE International Electron Devices Meeting
LA English
DT Proceedings Paper
CT International Electron Devices Meeting (IEDM)
CY DEC 06-08, 2010
CL San Francisco, CA
AB This paper demonstrates the integration of a composite high-kappa gate stack (3.3 nm Al2O3-1.0 nm GaSb) with a mixed anion InAs0.8Sb0.2 quantum-well field effect transistor (QWFET). The composite gate stack achieves; (i) EOT of 4.2 nm with < 10(-7)A/cm(2) gate leakage (ii) low D-it interface (similar to 1x10(12) /cm(2)/eV) (iii) high drift mu of 3,900-5,060 cm(2)/V-s at N-S of 5x10(11)-3x10(12)/cm(2). The InAs0.8Sb0.2 MOS-QWFETs with composite gate stack exhibit extrinsic (intrinsic) g(m) of 334 (502) mu S/mu m and drive current of 380 mu A/mu m at V-DS = 0.5V for Lg=1 mu m.
C1 [Ali, A.; Madan, H.; Misra, R.; Hwang, E.; Agrawal, A.; Ramirez, I.; Schiffer, P.; Jackson, T. N.; Mohney, S. E.; Datta, S.] Penn State Univ, University Pk, PA 16802 USA.
[Boos, J. B.; Bennett, B. R.] Naval Res Lab, Washington, DC 20375 USA.
[Geppert, I.; Eizenberg, M.] Univ Haifa, Technion Israel Inst Technol, Haifa, Israel.
RP Ali, A (reprint author), Penn State Univ, University Pk, PA 16802 USA.
EM aua176@psu.edu
RI Bennett, Brian/A-8850-2008; Schiffer, Peter/F-3227-2011; Ali,
Ashkar/C-5065-2013; Ramirez, J. Israel/H-1680-2014
OI Bennett, Brian/0000-0002-2437-4213;
FU DARPA/SRC; MARCO-MSD Center
FX We acknowledge financial support from DARPA/SRC sponsored MARCO-MSD
Center.
NR 6
TC 0
Z9 0
U1 0
U2 3
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4244-7419-6
J9 INT EL DEVICES MEET
PY 2010
PG 4
WC Engineering, Electrical & Electronic
SC Engineering
GA BTS81
UT WOS:000287997300032
ER
PT J
AU Nainani, A
Irisawa, T
Yuan, Z
Sun, Y
Krishnamohan, T
Reason, M
Bennett, BR
Boos, JB
Ancona, MG
Nishi, Y
Saraswat, KC
AF Nainani, Aneesh
Irisawa, Toshifumi
Yuan, Ze
Sun, Yun
Krishnamohan, Tejas
Reason, Matthew
Bennett, Brian R.
Boos, J. Brad
Ancona, Mario G.
Nishi, Yoshio
Saraswat, Krishna C.
GP IEEE
TI Development of high-k dielectric for Antimonides and a sub 350 degrees C
III-V pMOSFET outperforming Germanium
SO 2010 INTERNATIONAL ELECTRON DEVICES MEETING - TECHNICAL DIGEST
SE International Electron Devices Meeting
LA English
DT Proceedings Paper
CT International Electron Devices Meeting (IEDM)
CY DEC 06-08, 2010
CL San Francisco, CA
AB InxGa1-xSb channel materials have the highest hole and electron mobility among all III-V semiconductors, high conduction and valence band offsets (CBO/VBO) with lattice matched AlxIn1-xSb for heterostructure MOSFET design [1] and allow low thermal budget MOSFET fabrication (Figure 1). While buried channel HEMT-like devices with excellent electron and hole transport [3-5] have been demonstrated, realization of an Sb-channel MOSFET has remained elusive due to the highly reactive nature of the Sb-surface (Figure 2). In this paper we overcome these challenges (Figure 1) and fabricate an InxGa1-xSb pMOSFET with high hole mobility (mu(h)) : a bottleneck for III-V complimentary logic. Synchrotron Radiation Photoemission Spectroscopy (SRPES) is used to aid the development of ALD Al2O3 on GaSb with a mid bandgap Dit of 3x10(11)/cm(2)eV(-1). A p(+)/n diode with ideality factor of 1.4 and I-ON/I-OFF > 5x10(4) is developed. pMOSFETs with various channel configurations to optimize the hole transport are fabricated using a sub 350 degrees C gate-first process. Surface (buried) channel pMOSFETs with peak mu(h) of 620 (910) cm(2)/Vs and having more than 50 (100) % higher mobility than Germanium over the entire sheet charge (N-s) range are demonstrated and analyzed.
C1 [Nainani, Aneesh; Irisawa, Toshifumi; Yuan, Ze; Krishnamohan, Tejas; Nishi, Yoshio; Saraswat, Krishna C.] Stanford Univ, Dept Elect Engn, Stanford, CA 94305 USA.
[Sun, Yun] Stanford Linear Accelerator Ctr, Menlo Pk, CA 94025 USA.
[Reason, Matthew; Bennett, Brian R.; Boos, J. Brad; Ancona, Mario G.] Naval Res Lab, Washington, DC 20375 USA.
RP Nainani, A (reprint author), Stanford Univ, Dept Elect Engn, Stanford, CA 94305 USA.
EM nainani@stanford.edu
RI Bennett, Brian/A-8850-2008
OI Bennett, Brian/0000-0002-2437-4213
FU Office of Naval Research; Intel Corporation
FX One of the authors (Aneesh Nainani) would like to thank Intel
Corporation for PhD Fellowship. This work was partially supported by the
Office of Naval Research and Intel Corporation. Portions of this
research were carried out at the Stanford Synchrotron Radiation
Lightsource, a national user facility operated by Stanford University on
behalf of the U.S. Department of Energy, Office of Basic Energy
Sciences.
NR 13
TC 0
Z9 0
U1 0
U2 10
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4244-7419-6
J9 INT EL DEVICES MEET
PY 2010
PG 4
WC Engineering, Electrical & Electronic
SC Engineering
GA BTS81
UT WOS:000287997300033
ER
PT S
AU Sharma, S
Shi, Y
Hou, YT
Sherali, HD
Kompella, S
AF Sharma, Sushant
Shi, Yi
Hou, Y. Thomas
Sherali, Hanif D.
Kompella, Sastry
GP IEEE
TI Cooperative Communications in Multi-hop Wireless Networks: Joint Flow
Routing and Relay Node Assignment
SO 2010 PROCEEDINGS IEEE INFOCOM
SE IEEE INFOCOM
LA English
DT Proceedings Paper
CT Conference on IEEE INFOCOM
CY MAR 15-19, 2010
CL San Diego, CA
SP IEEE
ID AD HOC NETWORKS; DIVERSITY; THROUGHPUT; STRATEGIES; ALLOCATION
AB It has been shown that cooperative communications (CC) have the potential to significantly increase the capacity of wireless networks. However, most of the existing results are limited to single-hop wireless networks. To illustrate the benefits of CC in multi-hop wireless networks, we solve a joint optimization problem of relay node assignment and flow routing for concurrent sessions. We study this problem via mathematical modeling and solve it using a solution procedure based on the branch-and-cut framework. We design several novel components to speed-up the computation time of branch-and-cut. Via numerical results, we show the significant rate gains that can be achieved by incorporating CC in multi-hop networks.
C1 [Sharma, Sushant] Virginia Tech, Dept Comp Sci, Blacksburg, VA 24061 USA.
[Sherali, Hanif D.] Virginia Tech, Grado Dept Ind & Syst Engn, Blacksburg, VA 24061 USA.
[Kompella, Sastry] US Navy, Res Lab, Informat Technol Div, Washington, DC USA.
[Shi, Yi; Hou, Y. Thomas] Virginia Tech, Bradley Dept Elect & Comp Engn, Blacksburg, VA USA.
RP Sharma, S (reprint author), Virginia Tech, Dept Comp Sci, Blacksburg, VA 24061 USA.
FU NSF [CCF0946273, CMMI0754236]; ONR.
FX The work of Y.T. Hou, Y. Shi, and S. Sharma was supported in part by NSF
Grant CCF0946273. The work of H.D. Sheraliwas supported in part by NSF
Grant CMMI0754236. Thework of S. Kompella was supported in part by the
ONR.
NR 25
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 0743-166X
BN 978-1-4244-5838-7
J9 IEEE INFOCOM SER
PY 2010
PG 9
WC Computer Science, Hardware & Architecture; Engineering, Electrical &
Electronic; Telecommunications
SC Computer Science; Engineering; Telecommunications
GA BTN69
UT WOS:000287416300125
ER
PT S
AU Sharma, S
Shi, Y
Liu, J
Hou, YT
Kompella, S
AF Sharma, Sushant
Shi, Yi
Liu, Jia
Hou, Y. Thomas
Kompella, Sastry
GP IEEE
TI Is Network Coding Always Good for Cooperative Communications?
SO 2010 PROCEEDINGS IEEE INFOCOM
SE IEEE INFOCOM
LA English
DT Proceedings Paper
CT Conference on IEEE INFOCOM
CY MAR 15-19, 2010
CL San Diego, CA
SP IEEE
ID WIRELESS NETWORKS; CODED COOPERATION; PERFORMANCE ANALYSIS; RELAY
NETWORKS; DIVERSITY; STRATEGIES; ALLOCATION
AB Network coding (NC) is a promising approach to reduce time-slot overhead for cooperative communications (CC) in a multi-session environment. Most of the existing works take advantage of the benefits of NC in CC but do not fully recognize its potential adverse effect. In this paper, we show that employing NC may not always benefit CC. We substantiate this important finding in the context of analog network coding (ANC) and amplify-and-forward (AF) CC. This paper, for the first time, introduces an important concept of network coding noise (NC noise). Specifically, we analyze the signal aggregation at a relay node and signal extraction at a destination node. We then use the analysis to derive a closed-form expression for NC noise at each destination node in a multi-session environment. We show that NC noise can diminish the advantage of NC in CC. Our results formalizes an important concept on using NC in CC.
C1 [Sharma, Sushant] Virginia Polytech Inst & State Univ, Dept Comp Sci, Blacksburg, VA 24061 USA.
[Shi, Yi; Liu, Jia; Hou, Y. Thomas] Virginia Polytech Inst & State Univ, Bradley Dept Elect & Comp Engn, Blacksburg, VA 24061 USA.
[Kompella, Sastry] Div Informat Technol, US Naval Res Lab, Washington, DC USA.
RP Sharma, S (reprint author), Virginia Polytech Inst & State Univ, Dept Comp Sci, Blacksburg, VA 24061 USA.
FU NSF [CCF0946273]; ONR
FX The work of Y.T. Hou, Y. Shi, S. Sharma, and J. Liu was supported in
part by NSF Grant CCF0946273. The work of S. Kompella was supported in
part by the ONR.
NR 24
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 0743-166X
BN 978-1-4244-5838-7
J9 IEEE INFOCOM SER
PY 2010
PG 9
WC Computer Science, Hardware & Architecture; Engineering, Electrical &
Electronic; Telecommunications
SC Computer Science; Engineering; Telecommunications
GA BTN69
UT WOS:000287416300122
ER
PT S
AU Hingorani, N
Ginn, H
Sullivan, J
AF Hingorani, Narain
Ginn, Herbert, III
Sullivan, Joseph
GP IEEE
TI CONTROL/PROTECTION ARCHITECTURE FOR POWER ELECTRONIC CONVERTERS
SO 2010 RECORD OF CONFERENCE PAPERS INDUSTRY APPLICATIONS SOCIETY 57TH
ANNUAL PETROLEUM AND CHEMICAL INDUSTRY CONFERENCE PCIC
SE Petroleum and Chemical Industry Technical Conference
LA English
DT Proceedings Paper
CT 57th IEEE Annual Petroleum and Chemical Industry Technical Conference
CY SEP 20-22, 2010
CL San Antonio, TX
SP IEEE
DE Control Architecture; Control and Protection; Power Electronics; Power
Electronics Building Block (PEBB); DVR; STATCOM
AB Most marine applications, from ships to drilling platforms, are increasingly using power electronics for motor drives and HVDC power conversion for shore to platform transmission. IEEE Working group i8 is well along in developing a standard for control/protection architecture for power electronics converters. In this digital age control/protection technology is advancing rapidly and substantial improvements can be attained through cost effective upgrades. with potential benefits from upgrading and adding new features of control/protection from time to time. Key to this upgrade process would be well defined control partitions which will allow an individual layer to be removed and upgraded without impacting adjacent layers and hardware. This paper describes the IEEE recommended architecture which will ease the technical and financial burden of upgrading a power electronics system.
C1 [Ginn, Herbert, III] Mississippi State Univ, Mississippi State, MS 39762 USA.
[Sullivan, Joseph] NSWC Carderock Div, Bethesda, MD USA.
RP Ginn, H (reprint author), Mississippi State Univ, Mississippi State, MS 39762 USA.
EM nghingorani@sbcglobal.net; ginn@ece.msstate.edu;
Joseph.R.Sullivan@navy.mil
NR 13
TC 0
Z9 0
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 0090-3507
BN 978-1-4244-6799-0
J9 RECORD CONF PAP PETR
PY 2010
PG 8
WC Engineering, Chemical; Engineering, Petroleum; Engineering, Electrical &
Electronic
SC Engineering
GA BTO12
UT WOS:000287457100035
ER
PT B
AU Moon, JS
Curtis, D
Hu, M
Wong, D
Campbell, PM
Jernigan, G
Tedesco, J
VanMil, B
Myers-Ward, R
Eddy, C
Gaskill, DK
Robinson, J
Fanton, M
Asbeck, P
AF Moon, J. S.
Curtis, D.
Hu, M.
Wong, D.
Campbell, P. M.
Jernigan, G.
Tedesco, J.
VanMil, B.
Myers-Ward, R.
Eddy, C., Jr.
Gaskill, D. K.
Robinson, J.
Fanton, M.
Asbeck, P.
GP IEEE
TI Development toward Wafer-Scale Graphene RF Electronics
SO 2010 TOPICAL MEETING ON SILICON MONOLITHIC INTEGRATED CIRCUITS IN RF
SYSTEMS
LA English
DT Proceedings Paper
CT 10th Topical Meeting on Silicon Monolithic Integrated Circuits in RF
Systems (SiRF2010)
CY JAN 11-13, 2010
CL New Orleans, LA
SP IEEE MTT
DE Graphene; MOSFET; High-K dielectric
ID EPITAXIAL GRAPHENE
AB We will present recent development of graphene FET technology on a wafer scale, including epitaxial graphene growth, device fabrication and characterization. The epitaxial growth of graphene on 2-inch wafers were fabricated via graphitization of Si-face SiC(0001) substrates. The sheet electron carrier density of these layers were typically 10(-13)/cm(2) at room temperature and had mobility of similar to 1500 cm(2) V-1S-1 or higher. Graphene FETs were fabricated with source and drain non-alloyed ohmic metal schemes. Metal gates were used on top of atomic-layer-deposited high-k (Al2O3) gate dielectric layer. DC and RF performance of the world's first epitaxial graphene RF FETs is presented.
C1 [Moon, J. S.; Curtis, D.; Hu, M.; Wong, D.] HRL Labs LLC, 3011 Malibu Canyon Rd, Malibu, CA 90265 USA.
[Campbell, P. M.; Jernigan, G.; Tedesco, J.; VanMil, B.; Myers-Ward, R.; Eddy, C., Jr.; Gaskill, D. K.] Naval Res Lab, Washington, DC 20375 USA.
[Robinson, J.; Fanton, M.] Penn State Univ, EOC, University Pk, PA 16802 USA.
[Asbeck, P.] Univ Calif San Diego, La Jolla, CA 92093 USA.
RP Moon, JS (reprint author), HRL Labs LLC, 3011 Malibu Canyon Rd, Malibu, CA 90265 USA.
RI Robinson, Joshua/I-1803-2012
FU DARPA [N66001-08-C-2048]
FX This work was partially supported by the DARPA under a contract number
N66001-08-C-2048, monitored by Dr. Michael Fritze.
NR 13
TC 4
Z9 4
U1 0
U2 5
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4244-5456-3
PY 2010
BP 1
EP +
PG 2
WC Engineering, Electrical & Electronic
SC Engineering
GA BQR42
UT WOS:000281614000001
ER
PT S
AU Dhakal, S
Kim, J
AF Dhakal, Sagar
Kim, JoonBeom
GP IEEE
TI Statistical Analysis of User-pairing Algorithms in Virtual MIMO Systems
SO 2010 WIRELESS TELECOMMUNICATIONS SYMPOSIUM (WTS)
SE Wireless Telecommunications Symposium
LA English
DT Proceedings Paper
CT 9th Annual Wireless Telecommunications Symposium (WTS)
CY APR 21-23, 2010
CL Univ S Florida, Tampa, FL
SP Cal Poly Pomona, IEEE, Verizon Wireless, IEEE Commun Soc, Concurrent Technologies Corp (CTC), Measurement Speech & Audio Qual Networks (MESAQIN), IEEE Commun Soc Foothill Chapter
HO Univ S Florida
DE Virtual multiple-input multiple-output (VMIMO); single-input
multiple-output (SIMO); multi-user pairing algorithm; minimum mean
square error (MMSE)
AB In this paper a novel algorithm for user-pairing is proposed for virtual multiple-input multiple-output (V-MIMO) systems. Channel orthogonality is utilized to derive an expression for the output SNR (OSNR) in a V-MIMO system. We also show that the V-MIMO OSNR almost surely converges to the OSNR of a single input multiple output transmission as number of receive antennas approach infinity. Applying the statistical properties of orthogonality to independent and identically distributed wireless channels, system performance for the proposed pairing algorithm is evaluated in terms of joint capacity, OSNR loss, throughput fairness, and computational complexity. Numerical results show that the proposed orthogonal pairing algorithm outperforms conventional pairing methods that are oriented to maximize joint capacity.
C1 [Dhakal, Sagar] USN, Res Lab, Washington, DC 20375 USA.
[Kim, JoonBeom] Ericsson Inc, Plano, TX 75024 USA.
RP Dhakal, S (reprint author), USN, Res Lab, Washington, DC 20375 USA.
EM dhakals@wave.nrl.navy.mil; kim.joonbeom@gmail.com
FU Office of Naval Research
FX This work has been supported by the Office of Naval Research.
NR 10
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1934-5070
BN 978-1-4244-6557-6
J9 WIREL TELECOMM SYMP
PY 2010
PG 5
WC Computer Science, Hardware & Architecture; Engineering, Electrical &
Electronic; Telecommunications
SC Computer Science; Engineering; Telecommunications
GA BDQ12
UT WOS:000314394200018
ER
PT J
AU Ikyo, BA
Marko, IP
Adams, AR
Sweeney, SJ
Canedy, CL
Vurgaftman, I
Kim, CS
Kim, M
Bewley, WW
Meyer, JR
AF Ikyo, Barnabas A.
Marko, Igor P.
Adams, Alf R.
Sweeney, Stephen J.
Canedy, Chadwick L.
Vurgaftman, Igor
Kim, Chul Soo
Kim, Mijin
Bewley, William W.
Meyer, Jerry R.
GP IEEE
TI Temperature sensitivity of mid-infrared type II "W" interband cascade
lasers (ICL) emitting at 4.1 mu m at room temperature
SO 22ND IEEE INTERNATIONAL SEMICONDUCTOR LASER CONFERENCE
LA English
DT Proceedings Paper
CT 22nd IEEE International Semiconductor Laser Conference
CY SEP 26-30, 2010
CL Kyoto, JAPAN
SP IEEE
ID PRESSURE
AB The thermal properties of 5-stage "W" Interband-Cascade Lasers emitting at 4.1 mu m at RT are investigated. It is shown that inter-valence band absorption coupled with non-radiative recombination govern their maximum operating temperature.
C1 [Ikyo, Barnabas A.; Marko, Igor P.; Adams, Alf R.; Sweeney, Stephen J.] Univ Surrey, Adv Technol Inst, Guildford GU2 7XH, Surrey, England.
[Canedy, Chadwick L.; Vurgaftman, Igor; Kim, Chul Soo; Kim, Mijin; Bewley, William W.; Meyer, Jerry R.] Naval Res Lab, Washington, DC USA.
RP Ikyo, BA (reprint author), Univ Surrey, Adv Technol Inst, Guildford GU2 7XH, Surrey, England.
NR 5
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4244-5684-0
PY 2010
BP 41
EP +
PG 2
WC Engineering, Electrical & Electronic; Optics
SC Engineering; Optics
GA BTN65
UT WOS:000287413100021
ER
PT S
AU Messenger, SR
Jackson, EM
Warner, JH
Walters, RJ
AF Messenger, S. R.
Jackson, E. M.
Warner, J. H.
Walters, R. J.
GP IEEE
TI SCREAM: A NEW CODE FOR SOLAR CELL DEGRADATION PREDICTION USING THE
DISPLACEMENT DAMAGE DOSE APPROACH
SO 35TH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE
SE IEEE Photovoltaic Specialists Conference
LA English
DT Proceedings Paper
CT 35th IEEE Photovoltaic Specialists Conference
CY JUN 20-25, 2010
CL Honolulu, HI
SP IEEE Elect Devices Soc, IEEE Photon Soc, IEEE Power & Energy Soc, Solar Energy Industries Assoc
ID NONIONIZING ENERGY-LOSS; DEVICE APPLICATIONS; PROTON; SPACE; NIEL
AB A Matlab-based executable code has been developed called SCREAM (Solar Cell Radiation Environment Analysis Models) which implements the displacement damage dose (DDD) approach to solar cell degradation prediction in a space radiation environment.
C1 [Messenger, S. R.; Jackson, E. M.; Warner, J. H.; Walters, R. J.] USN, Res Lab, Washington, DC 20375 USA.
RP Messenger, SR (reprint author), USN, Res Lab, Washington, DC 20375 USA.
NR 16
TC 7
Z9 7
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 0160-8371
BN 978-1-4244-5891-2
J9 IEEE PHOT SPEC CONF
PY 2010
BP 1106
EP 1111
DI 10.1109/PVSC.2010.5614713
PG 6
WC Energy & Fuels; Engineering, Electrical & Electronic
SC Energy & Fuels; Engineering
GA BTO69
UT WOS:000287579501072
ER
PT S
AU Jenkins, PP
Walters, RJ
Gonzalez, M
Warner, JH
Lorentzen, JR
Flatico, JM
Greer, LC
Krasowski, MJ
AF Jenkins, Phillip P.
Walters, Robert J.
Gonzalez, Maria
Warner, Jeffrey H.
Lorentzen, Justin R.
Flatico, Joseph. M.
Greer, Lawrence C.
Krasowski, Michael J.
GP IEEE
TI INITIAL RESULTS FROM THE SECOND FORWARD TECHNOLOGY SOLAR CELL EXPERIMENT
SO 35TH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE
SE IEEE Photovoltaic Specialists Conference
LA English
DT Proceedings Paper
CT 35th IEEE Photovoltaic Specialists Conference
CY JUN 20-25, 2010
CL Honolulu, HI
SP IEEE Elect Devices Soc, IEEE Photon Soc, IEEE Power & Energy Soc, Solar Energy Industries Assoc
AB The success of the first Forward Technology Solar Cell Experiment (FTSCE) which flew as part of the 5th Materials on the International Space Station Experiments (MISSE-5) [1,2,3], led to a follow on experiment, FTSCE II. This experiment is currently operating on the International Space Station (ISS) as part of MISSE7. Solar cells are characterized with I-V curves. The test cells include current and next generation triple-junction production cells from Emcore and Spectrolab as well as advanced inverted metamorphic (IMM) and other thin film III-V cells from Emcore, Spectrolab and MicroLink Devices, Inc. Other thin film technologies include, advanced amorphous silicon concepts from United Solar Ovonic and a Copper Indium Selenide based two-cell string from Dutch Space. In this paper, The FTSCE II experiment is described and current status presented.
C1 [Jenkins, Phillip P.; Walters, Robert J.; Warner, Jeffrey H.; Lorentzen, Justin R.] USN, Res Lab, Washington, DC 20375 USA.
RP Jenkins, PP (reprint author), USN, Res Lab, Washington, DC 20375 USA.
NR 9
TC 3
Z9 3
U1 0
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 0160-8371
BN 978-1-4244-5891-2
J9 IEEE PHOT SPEC CONF
PY 2010
BP 1124
EP 1127
DI 10.1109/PVSC.2010.5614728
PG 4
WC Energy & Fuels; Engineering, Electrical & Electronic
SC Energy & Fuels; Engineering
GA BTO69
UT WOS:000287579501075
ER
PT S
AU Melinger, JS
Lane, P
Esenturk, O
Heilweil, E
AF Melinger, Joseph S.
Lane, Paul
Esenturk, Okan
Heilweil, Edwin
GP IEEE
TI PHOTO-CARRIER DYNAMICS OF BLENDED AND MULTI-LAYERED FILMS OF ZINC
PHTHALOCYANINE AND C-60 MEASURED BY TIME-RESOLVED TERAHERTZ SPECTROSCOPY
SO 35TH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE
SE IEEE Photovoltaic Specialists Conference
LA English
DT Proceedings Paper
CT 35th IEEE Photovoltaic Specialists Conference
CY JUN 20-25, 2010
CL Honolulu, HI
SP IEEE Elect Devices Soc, IEEE Photon Soc, IEEE Power & Energy Soc, Solar Energy Industries Assoc
AB We present a study of photo-induced carrier dynamics in organic thin films that contain zinc phthalocyanine (ZnPc) and buckminsterfullerene (C-60) investigated by ultrafast time resolved terahertz spectroscopy (TRTS). We compare two classes of films: 1) blend films of ZnPc and C-60 prepared by co-evaporation, and 2) superlattice films from alternating neat layers of ZnPc and C-60, where the individual layer varies in thickness between 2 nm and 40 nm. These films are model structures for the charge generation layers in organic photovoltaics, and their photo-carrier dynamics on a femtosecond to nanosecond timescale is of high interest. Using TRTS, which employs an optical pump pulse and a time delayed terahertz (THz) probe pulse, we find evidence for a short-lived charge transfer state of C-60 that decays within several picoseconds of excitation. Both blend and superlattice films have a long-lived (> 80 picoseconds) THz absorption that is dependent on the structure and composition of the films. The optimum composition for maximum photocarrier generation efficiency is a 1:1 blend of ZnPc and C-60. Amongst the layered films, we find that the photocarrier efficiency increases as the individual layer thickness decreases, with the film having ultrathin alternating 2 nm thick layers exhibiting the strongest THz absorption. A much stronger THz absorption signal was obtained for the 2 nm layered film than for the best blend film.
C1 [Melinger, Joseph S.; Lane, Paul] USN, Res Lab, Washington, DC 20375 USA.
RP Melinger, JS (reprint author), USN, Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA.
OI Esenturk, Okan/0000-0001-6539-4344
NR 7
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 0160-8371
BN 978-1-4244-5891-2
J9 IEEE PHOT SPEC CONF
PY 2010
BP 1616
EP 1620
DI 10.1109/PVSC.2010.5616508
PG 5
WC Energy & Fuels; Engineering, Electrical & Electronic
SC Energy & Fuels; Engineering
GA BTO69
UT WOS:000287579501180
ER
PT S
AU Jenkins, PP
Trautz, KM
Walters, RJ
Lorentzen, JR
Fisher, JH
Horton, R
Newlander, CD
Davis, JF
Seiler, SW
Fournier, KB
Rekow, V
Cho, B
Eskenazi, MI
AF Jenkins, Phillip P.
Trautz, Kelly M.
Walters, Robert J.
Lorentzen, Justin R.
Fisher, Jonathan H.
Horton, Richard
Newlander, C. David
Davis, John F.
Seiler, Steven W.
Fournier, Kevin B.
Rekow, Vern
Cho, Benjamin
Eskenazi, Michael I.
GP IEEE
TI NUCLEAR WEAPONS EFFECTS TESTING OF SOLAR CELLS USING THE NATIONAL
IGNITION FACILITY (NIF)
SO 35TH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE
SE IEEE Photovoltaic Specialists Conference
LA English
DT Proceedings Paper
CT 35th IEEE Photovoltaic Specialists Conference
CY JUN 20-25, 2010
CL Honolulu, HI
SP IEEE Elect Devices Soc, IEEE Photon Soc, IEEE Power & Energy Soc, Solar Energy Industries Assoc
AB The response of triple junction InGaP2/GaAs/Ge, solar cells to a simulated nuclear weapons threat environment is being analyzed and tested. A series of experiments exposing solar cells to a pulse x-ray source were conducted at the newly opened National Ignition Facility (NIF) at Lawrence Livermore National Laboratory (LLNL) and the OMEGA Laser facility at the University of Rochester. The test samples were 2-cm x 2-cm solar cells mounted on solar array substrates using materials and techniques identical to flight solar arrays. The cell structural response is characterized through visual inspections for exposure-induced cracking. The cell electrical response is characterized through current vs. voltage measurements made under simulated Air Mass Zero As a result of this project, a methodology will be established through which a comprehensive analysis of the weapons response of new solar cell technologies can be performed.
C1 [Jenkins, Phillip P.; Trautz, Kelly M.; Walters, Robert J.; Lorentzen, Justin R.] USN, Res Lab, Washington, DC 20375 USA.
RP Jenkins, PP (reprint author), USN, Res Lab, Washington, DC 20375 USA.
NR 4
TC 1
Z9 1
U1 1
U2 3
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 0160-8371
BN 978-1-4244-5891-2
J9 IEEE PHOT SPEC CONF
PY 2010
AR 002550
DI 10.1109/PVSC.2010.5614573
PG 4
WC Energy & Fuels; Engineering, Electrical & Electronic
SC Energy & Fuels; Engineering
GA BTO69
UT WOS:000287579502176
ER
PT S
AU Messenger, SR
Trautz, K
Walters, RJ
Jones, G
Hall, J
Schuur, J
AF Messenger, S. R.
Trautz, K.
Walters, R. J.
Jones, G.
Hall, J.
Schuur, J.
GP IEEE
TI LOW ENERGY PROTON IMPLANTATION TECHNIQUES FOR COVERGLASS IRRADIATION
QUALIFICATION
SO 35TH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE
SE IEEE Photovoltaic Specialists Conference
LA English
DT Proceedings Paper
CT 35th IEEE Photovoltaic Specialists Conference
CY JUN 20-25, 2010
CL Honolulu, HI
SP IEEE Elect Devices Soc, IEEE Photon Soc, IEEE Power & Energy Soc, Solar Energy Industries Assoc
ID ION-IMPLANTATION; HYDROGEN; SILICON; BEAMS
AB It is demonstrated that the two hydrogen concentration profiles and the associated effects on solar cell coverglass degradation created at equivalent atomic fluences of 7.4x10(15) particles/cm(2) using 30 keV proton (H+) and 60 keV diatomic hydrogen ion (H-2(+)) implantation on solar cell coverglass material are nearly identical. Both Monte Carlo simulation and experimental results support this contention to the level of acceptable experimental error, thereby enabling coverglass radiation testing to be performed using the latter, more cost effective option.
C1 [Messenger, S. R.; Trautz, K.; Walters, R. J.] USN, Res Lab, Washington, DC 20375 USA.
RP Messenger, SR (reprint author), USN, Res Lab, Washington, DC 20375 USA.
NR 11
TC 1
Z9 1
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 0160-8371
BN 978-1-4244-5891-2
J9 IEEE PHOT SPEC CONF
PY 2010
AR 002578
DI 10.1109/PVSC.2010.5614673
PG 6
WC Energy & Fuels; Engineering, Electrical & Electronic
SC Energy & Fuels; Engineering
GA BTO69
UT WOS:000287579502182
ER
PT S
AU Messenger, SR
Warner, JH
Trautz, K
Uribe, R
Walters, RJ
AF Messenger, S. R.
Warner, J. H.
Trautz, K.
Uribe, R.
Walters, R. J.
GP IEEE
TI MONTE CARLO ANALYSIS OF THE NEO BEAM ELECTRON BEAM FACILITY
SO 35TH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE
SE IEEE Photovoltaic Specialists Conference
LA English
DT Proceedings Paper
CT 35th IEEE Photovoltaic Specialists Conference
CY JUN 20-25, 2010
CL Honolulu, HI
SP IEEE Elect Devices Soc, IEEE Photon Soc, IEEE Power & Energy Soc, Solar Energy Industries Assoc
ID DAMAGE
AB MCNPX Monte Carlo electron transport analyses are used to characterize the electron beam facility at NEO Beam.
C1 [Messenger, S. R.; Warner, J. H.; Trautz, K.; Walters, R. J.] USN, Res Lab, Washington, DC 20375 USA.
RP Messenger, SR (reprint author), USN, Res Lab, Washington, DC 20375 USA.
NR 14
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 0160-8371
BN 978-1-4244-5891-2
J9 IEEE PHOT SPEC CONF
PY 2010
AR 002584
DI 10.1109/PVSC.2010.5614558
PG 6
WC Energy & Fuels; Engineering, Electrical & Electronic
SC Energy & Fuels; Engineering
GA BTO69
UT WOS:000287579502183
ER
PT S
AU Warner, JH
Maximenk, SI
Messenger, SR
Walters, RJ
Ringel, SA
Brenner, MR
Carlin, AM
AF Warner, Jeffrey H.
Maximenk, Serguei I.
Messenger, Scott R.
Walters, Robert J.
Ringel, Steven A.
Brenner, Mark R.
Carlin, Andrew M.
GP IEEE
TI ELECTRICAL CHARACTERIZATION OF ELECTRON AND PROTON-INDUCED DEFECTS IN
P+N GAAS PHOTODIODES: EBIC STUDY
SO 35TH IEEE PHOTOVOLTAIC SPECIALISTS CONFERENCE
SE IEEE Photovoltaic Specialists Conference
LA English
DT Proceedings Paper
CT 35th IEEE Photovoltaic Specialists Conference
CY JUN 20-25, 2010
CL Honolulu, HI
SP IEEE Elect Devices Soc, IEEE Photon Soc, IEEE Power & Energy Soc, Solar Energy Industries Assoc
ID BEAM-INDUCED CURRENT; ION IRRADIATION; SPACE
AB Electrical changes in p(+)n GaAs photodiodes are monitored using illuminated current-voltage, quantum efficiency and electron beam induced current measurements after irradiation with 1 and 5 MeV electrons and 2 and 225 MeV protons. Electron beam induced micrographs have revealed the presence of localized defects or active recombination centers after irradiation with protons that are not observed after irradiation with electrons. Moreover, the 225 MeV protons clearly produce defects that are more electrically active compared with those produced by 2 MeV protons, but the implications deduced from the images can be deceiving when compared with the photovoltaic response of the photodiode.
C1 [Warner, Jeffrey H.; Messenger, Scott R.; Walters, Robert J.] USN, Res Lab, Washington, DC 20375 USA.
[Maximenk, Serguei I.] Global Def Technol & Syst Inc, Crofton, MD USA.
[Ringel, Steven A.; Brenner, Mark R.; Carlin, Andrew M.] Ohio State Univ, Columbus, OH 43210 USA.
RP Warner, JH (reprint author), USN, Res Lab, Washington, DC 20375 USA.
NR 13
TC 0
Z9 0
U1 0
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 0160-8371
BN 978-1-4244-5891-2
J9 IEEE PHOT SPEC CONF
PY 2010
AR UNSP 002646
DI 10.1109/PVSC.2010.5617203
PG 1
WC Energy & Fuels; Engineering, Electrical & Electronic
SC Energy & Fuels; Engineering
GA BTO69
UT WOS:000287579502195
ER
PT J
AU Chernyavskiy, IA
Vlasov, AN
Antonsen, TM
Chernin, D
Levush, B
Hyttinen, M
Roitman, A
Horoyski, P
Dobbs, R
Berry, D
AF Chernyavskiy, Igor A.
Vlasov, Alexander N.
Antonsen, Thomas M., Jr.
Chernin, David
Levush, Baruch
Hyttinen, Mark
Roitman, Albert
Horoyski, Peter
Dobbs, Richard
Berry, Dave
GP IEEE
TI Modeling of a G-band Extended Interaction Klystron Using the
Large-Signal Code TESLA
SO 35TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ
WAVES (IRMMW-THZ 2010)
LA English
DT Proceedings Paper
CT 35th International Conference on Infrared, Millimeter and Terahertz
Waves
CY SEP 05-10, 2010
CL Rome, ITALY
ID SIMULATION
AB The large-signal code TESLA (Telegraphist's Equations Solution for Linear beam Amplifiers) was originally developed for the analysis and design of klystrons. It has now been applied to the simulation of an extended interaction klystron (EIK) for the first time. Results for the power transfer curve and bandwidth curves computed for a G-band EIK compare well to their measured values. TESLA obtains these results almost on the two orders of magnitude faster than a 3D particle-in-cell simulation code.
C1 [Chernyavskiy, Igor A.; Chernin, David] SAIC, Mclean, VA 22102 USA.
[Vlasov, Alexander N.; Levush, Baruch] Naval Res Lab, Washington, DC 20375 USA.
[Antonsen, Thomas M., Jr.] Univ Maryland, College Pk, MD 20742 USA.
[Hyttinen, Mark; Roitman, Albert; Horoyski, Peter; Dobbs, Richard; Berry, Dave] CPI, Georgetown, ON, Canada.
RP Chernyavskiy, IA (reprint author), SAIC, Mclean, VA 22102 USA.
RI Antonsen, Thomas/D-8791-2017
OI Antonsen, Thomas/0000-0002-2362-2430
FU Defense Advanced Research Projects Agency [HR0011-09-C-0063]
FX We wish to thank Dr. K.N. Nguyen for useful discussions.This work was
supported by the Defense Advanced Research Projects Agency under
contract HR0011-09-C-0063. The views, opinions, and/or findings
contained in this article/presentation are those of the author/presenter
and should not be interpreted as representing the official views or
policies, either expressed or implied, of the Defense Advanced Research
Projects Agency or the Department of Defense.
NR 4
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4244-6657-3
PY 2010
PG 2
WC Engineering, Electrical & Electronic; Physics, Applied;
Telecommunications
SC Engineering; Physics; Telecommunications
GA BTU73
UT WOS:000288130600372
ER
PT J
AU Dobbs, R
Roitman, A
Horoyski, P
Hyttinen, M
Sweeney, D
Steer, B
Khanh, N
Wright, E
Chernin, D
Burke, A
Calame, J
Levush, B
Barker, NS
Booske, J
Blank, M
AF Dobbs, Richard
Roitman, Albert
Horoyski, Peter
Hyttinen, Mark
Sweeney, Dan
Steer, Brian
Khanh Nguyen
Wright, Edward
Chernin, David
Burke, Alex
Calame, Jeffrey
Levush, Baruch
Barker, N. Scott
Booske, John
Blank, Monica
GP IEEE
TI Design and Fabrication of Terahertz Extended Interaction Klystrons
SO 35TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ
WAVES (IRMMW-THZ 2010)
LA English
DT Proceedings Paper
CT 35th International Conference on Infrared, Millimeter and Terahertz
Waves
CY SEP 05-10, 2010
CL Rome, ITALY
AB The development of new terahertz power amplifiers at 0.67, 0.85 and 1.03 THz presents significant challenges in both design and fabrication. This paper describes the design challenges and methodology, an outline design of the new device and an analysis of fabrication techniques considered.
C1 [Dobbs, Richard; Roitman, Albert; Horoyski, Peter; Hyttinen, Mark; Sweeney, Dan; Steer, Brian] Commun & Power Ind Canada Inc, Georgetown, ON L7G 2J4, Canada.
[Chernin, David; Burke, Alex] Sci Applicat Int Corp, Mclean, VA 22102 USA.
[Khanh Nguyen; Wright, Edward] Beam Wave Res Inc, Bethesda, MD 20814 USA.
[Calame, Jeffrey; Levush, Baruch] Naval Res Lab, Washington, DC 20375 USA.
[Barker, N. Scott] Univ Virginia, Charlottesville, VA 22904 USA.
[Booske, John] Univ Wisconsin, Madison, WI 53715 USA.
[Blank, Monica] Commun & Power Ind, Palo Alto, CA 94304 USA.
RP Dobbs, R (reprint author), Commun & Power Ind Canada Inc, Georgetown, ON L7G 2J4, Canada.
FU Defense Advanced Research Projects Agency Microsystems Technology Office
(MTO); DARPA/CMO [HR0011-09-C-0063]
FX This work is sponsored by: Defense Advanced Research Projects Agency
Microsystems Technology Office (MTO);Program: Terahertz Electronics
(THz); Issued by DARPA/CMO under Contract No: HR0011-09-C-0063
NR 4
TC 0
Z9 0
U1 0
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4244-6657-3
PY 2010
PG 3
WC Engineering, Electrical & Electronic; Physics, Applied;
Telecommunications
SC Engineering; Physics; Telecommunications
GA BTU73
UT WOS:000288130600370
ER
PT J
AU Joye, CD
Calame, JP
Garven, M
Park, D
Bass, R
Levush, B
AF Joye, Colin D.
Calame, Jeffrey P.
Garven, Morag
Park, Doewon
Bass, Robert
Levush, Baruch
GP IEEE
TI UV-LIGA and DRIE Grating Microfabrication and Testing for Sheet Beam
Amplifiers at 220 GHz
SO 35TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ
WAVES (IRMMW-THZ 2010)
LA English
DT Proceedings Paper
CT 35th International Conference on Infrared, Millimeter and Terahertz
Waves
CY SEP 05-10, 2010
CL Rome, ITALY
AB Slow-wave sheet beam amplifiers are under development at NRL to demonstrate 50 watts CW at 220 GHz. We report on the microfabrication of amplifier gratings based on Ultraviolet Lithography (UV-LIGA) techniques using the SU-8 Photoresist for thick films. Deep Reactive Ion etching (DRIE) has also been investigated for grating circuits. An improved cold test fixture is being developed for the cold test process.
C1 [Joye, Colin D.; Calame, Jeffrey P.; Park, Doewon; Bass, Robert; Levush, Baruch] US Navy, Res Lab, Washington, DC 20375 USA.
[Garven, Morag] SAIC, Mclean, VA 22102 USA.
RP Joye, CD (reprint author), US Navy, Res Lab, Washington, DC 20375 USA.
FU U.S. Office of Naval Research
FX This work is sponsored by the U.S. Office of Naval Research
NR 4
TC 0
Z9 0
U1 0
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4244-6657-3
PY 2010
PG 2
WC Engineering, Electrical & Electronic; Physics, Applied;
Telecommunications
SC Engineering; Physics; Telecommunications
GA BTU73
UT WOS:000288130600558
ER
PT J
AU Mruk, JR
Zhou, HY
Levitt, H
Filipovic, D
AF Mruk, Joseph R.
Zhou, Hongyu
Levitt, Hal
Filipovic, Dejan
GP IEEE
TI Dual Wideband Monolithically Integrated Millimeter-Wave Passive
Front-End Sub-Systems
SO 35TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ
WAVES (IRMMW-THZ 2010)
LA English
DT Proceedings Paper
CT 35th International Conference on Infrared, Millimeter and Terahertz
Waves
CY SEP 05-10, 2010
CL Rome, ITALY
AB Recent advances in micromachining have enabled the development of wideband millimeter-wave antennas with integrated beamformers presented in this paper. A combination of two radiators, both having consistent radiation patterns, is used to cover K-through W-band frequencies. Two planar log-periodic antennas are monolithically integrated with respective multi-stage micro-coaxial impedance transformers and filters to instantaneously cover K through Q-band and V through W-band with high rejection at the cross-over frequency. The low-band antenna uses a low-pass filter having a maximum insertion loss of 1.5dB at 50GHz. The band-pass filter of the high-band antenna achieves insertion loss < 1dB for the pass-band with very deep rejection outside the pass-band. In addition, an end-fire log-periodic antenna operating in the higher band is also designed and integrated with the band-pass filter. VSWR of the end-fire log-periodic antenna with integrated band-pass filter is shown to be < 2:1. A prototype 18 to 110GHz planar log-periodic antenna is fabricated and measured to demonstrate the validity of the computational models.
C1 [Mruk, Joseph R.; Zhou, Hongyu; Filipovic, Dejan] Univ Colorado, Dept Elect Comp & Energy Engn, Boulder, CO 80309 USA.
[Levitt, Hal] US Navy, Res Lab, Washington, DC 20375 USA.
RP Mruk, JR (reprint author), Univ Colorado, Dept Elect Comp & Energy Engn, Boulder, CO 80309 USA.
FU ONR [N000140711161]; NRL/ATI [S10-007]
FX We would like to thank James Murphy, Michael Hooper and David Lehr of
the Tactical SIGINT Technology (TST) program, and Dr. Peter Craig of ONR
31 for their essential support. This work was supported by the ONR grant
#N000140711161, and NRL/ATI contract #S10-007.
NR 4
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4244-6657-3
PY 2010
PG 2
WC Engineering, Electrical & Electronic; Physics, Applied;
Telecommunications
SC Engineering; Physics; Telecommunications
GA BTU73
UT WOS:000288130600510
ER
PT J
AU Penano, J
Sprangle, P
Gordon, D
Hafizi, B
Zigler, A
AF Penano, Joseph
Sprangle, Phillip
Gordon, Daniel
Hafizi, Bahman
Zigler, Arie
GP IEEE
TI THz Generation in a Photo-Activated Periodically-Biased Semiconductor
SO 35TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ
WAVES (IRMMW-THZ 2010)
LA English
DT Proceedings Paper
CT 35th International Conference on Infrared, Millimeter and Terahertz
Waves
CY SEP 05-10, 2010
CL Rome, ITALY
AB A high-intensity short laser pulse, propagating obliquely to the surface of a periodically biased semiconductor array can photo-ionize the medium and generate a periodic current density. The transient current density can be a source of THz radiation over a wide frequency range.
C1 [Penano, Joseph; Sprangle, Phillip; Gordon, Daniel] USN, Res Lab, Washington, DC 20375 USA.
[Hafizi, Bahman; Zigler, Arie] Icarus Res Inc, Bethesda, MD USA.
RP Penano, J (reprint author), USN, Res Lab, Washington, DC 20375 USA.
NR 7
TC 0
Z9 0
U1 0
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4244-6657-3
PY 2010
PG 1
WC Engineering, Electrical & Electronic; Physics, Applied;
Telecommunications
SC Engineering; Physics; Telecommunications
GA BTU73
UT WOS:000288130600015
ER
PT J
AU Sprangle, P
Penano, J
Gordon, D
Hafizi, B
Serafim, P
AF Sprangle, Phillip
Penano, Joseph
Gordon, Daniel
Hafizi, Bahman
Serafim, Philip
GP IEEE
TI THz GENERATION IN PLASMAS USING TWO-COLOR LASER PULSES
SO 35TH INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ
WAVES (IRMMW-THZ 2010)
LA English
DT Proceedings Paper
CT 35th International Conference on Infrared, Millimeter and Terahertz
Waves
CY SEP 05-10, 2010
CL Rome, ITALY
AB We analyze the generation of THz radiation when an intense, short laser pulse is mixed with its frequency-doubled counterpart in plasma. We use the THz driving current to determine the electromagnetic field characteristics such as spectral intensity, electric field amplitude and directionality.
C1 [Sprangle, Phillip; Penano, Joseph; Gordon, Daniel] USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
[Hafizi, Bahman] Icarus Res Inc, Bethesda, MD 20824 USA.
[Serafim, Philip] Northeastern Univ, Boston, MA 02115 USA.
RP Sprangle, P (reprint author), USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
NR 2
TC 0
Z9 0
U1 0
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
BN 978-1-4244-6657-3
PY 2010
PG 1
WC Engineering, Electrical & Electronic; Physics, Applied;
Telecommunications
SC Engineering; Physics; Telecommunications
GA BTU73
UT WOS:000288130600076
ER
PT S
AU Nagayama, S
Sasao, T
Butler, JT
AF Nagayama, Shinobu
Sasao, Tsutomu
Butler, Jon T.
GP IEEE
TI Floating-Point Numeric Function Generators Based on Piecewise-Split
EVMDDs
SO 40TH IEEE INTERNATIONAL SYMPOSIUM ON MULTIPLE-VALUED LOGIC ISMVL 2010
SE International Symposium on Multiple-Valued Logic
LA English
DT Proceedings Paper
CT 40th International Symposium on Multiple-Valued Logic (ISMVL)
CY MAY 26-28, 2010
CL Barcelona, SPAIN
SP IEEE Comp Soc
ID ELEMENTARY-FUNCTIONS
AB This paper proposes a new architecture for memory-based floating-point numeric function generators (NFGs). The design method uses piecewise-split edge-valued multi-valued decision diagrams (EVMDDs). To design NFGs with less memory size, we partition the domain of the floating-point function into segments, and represent the function using an EVMDD for each segment. By realizing each EVMDD with hardware, we obtain the floating-point NFG. This paper also presents an algorithm that partitions the domain by decomposing the edge-valued binary decision diagram (EVBDD) representing the whole floating-point function. Experimental results show that, for a single-precision floating-point function, our new NFG requires 40% to 65% less memory than any previous one. An advantage of our algorithm is that it can be applied to many different functions.
C1 [Nagayama, Shinobu] Hiroshima City Univ, Dept Comp & Network Eng, Hiroshima, Japan.
[Sasao, Tsutomu] Kyushu Inst Technol, Dept Comp Sci & Elect, Iizuka, Fukuoka, Japan.
[Butler, Jon T.] Naval Postgrad Sch, Dept Elect & Comp Engn, Monterey, CA USA.
RP Nagayama, S (reprint author), Hiroshima City Univ, Dept Comp & Network Eng, Hiroshima, Japan.
RI Sasao, Tsutomu/E-9702-2012
FU Scientific Research of the Japan Society for the Promotion of Science
(JSPS); Ministry of Education, Culture, Sports, Science, and Technology
(MEXT) [200700051]; Hiroshima City University Grant for Special Academic
Research [8108]
FX This research is partly supported by the Grant in Aid for Scientific
Research of the Japan Society for the Promotion of Science (JSPS), funds
from Ministry of Education, Culture, Sports, Science, and Technology
(MEXT) via Knowledge Cluster Project, the MEXT Grant-in-Aid for Young
Scientists (B), 200700051, 2009, and Hiroshima City University Grant for
Special Academic Research (General Studies), 8108, 2009.
NR 25
TC 2
Z9 2
U1 0
U2 0
PU IEEE COMPUTER SOC
PI LOS ALAMITOS
PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1264 USA
SN 0195-623X
BN 978-0-7695-4024-5
J9 INT SYM MVL
PY 2010
BP 223
EP 228
DI 10.1109/ISMVL.2010.49
PG 6
WC Engineering, Electrical & Electronic; Mathematics, Applied
SC Engineering; Mathematics
GA BTO58
UT WOS:000287530100040
ER
PT S
AU Walker, TO
Tummala, M
McEachen, J
AF Walker, T. Owens, III
Tummala, Murali
McEachen, John
GP IEEE
TI Energy Efficiency of Centralized and Distributed Computation in
Unattended Multi-hop Wireless Sensor Networks for Battlefield Monitoring
SO 43RD HAWAII INTERNATIONAL CONFERENCE ON SYSTEMS SCIENCES VOLS 1-5 (HICSS
2010)
SE Proceedings of the Annual Hawaii International Conference on System
Sciences
LA English
DT Proceedings Paper
CT 43rd Hawaii International Conference on Systems Sciences (HICSS 2010)
CY JAN 05-08, 2010
CL Honolulu, HI
SP Univ Hawaii, Shidler Coll Business
AB The energy efficiency trade-offs available between centralized and distributed solutions in unattended wireless sensor network deployments such as those that support remote battlefield monitoring remain an open research question. In this paper, we compare the relative energy efficiency of these two approaches in multi-hop wireless sensor networks. We develop a framework that includes both total and per node energy efficiency expressions and apply it to the beamforming class of unattended battlefield monitoring solutions using Mica2, MicaZ and the latest generation Telos sensor motes. A performance threshold is shown to exist between these approaches which can be exploited through the use of preamble sampling.
C1 [Walker, T. Owens, III; Tummala, Murali; McEachen, John] USN, Postgrad Sch, Dept Elect & Comp Engn, Monterey, CA 93943 USA.
RP Walker, TO (reprint author), USN, Postgrad Sch, Dept Elect & Comp Engn, Monterey, CA 93943 USA.
EM towalker@nps.edu; mtummala@nps.edu; mceachen@nps.edu
NR 21
TC 0
Z9 0
U1 0
U2 0
PU IEEE COMPUTER SOC
PI LOS ALAMITOS
PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1264 USA
SN 1060-3425
BN 978-1-4244-5509-6
J9 P ANN HICSS
PY 2010
BP 4609
EP 4617
PG 9
WC Computer Science, Theory & Methods; Engineering, Electrical & Electronic
SC Computer Science; Engineering
GA BRD18
UT WOS:000282391803095
ER
PT S
AU Lin, H
Ross, M
Mack, T
AF Lin, Han
Ross, Michael
Mack, Thomas
BA Pritchard, DA
Sanson, LD
BF Pritchard, DA
Sanson, LD
GP IEEE
TI Design of a Physical Security Perimeter Fencing System
SO 44TH ANNUAL 2010 IEEE INTERNATIONAL CARNAHAN CONFERENCE ON SECURITY
TECHNOLOGY
SE International Carnahan Conference on Security Technology Proceedings
LA English
DT Proceedings Paper
CT 44th Annual 2010 IEEE International Carnahan Conference on Security
Technology
CY OCT 05-08, 2010
CL San Jose, CA
SP IEEE, Chung Shan Inst, Gen Dynam Adv Informat Syst, Natl Cent Univ, Senstar, IEEE Aerosp Elect Syst Soc, Sandia Natl Labs
DE Intrusion Detection; Physical Security; Perimeter
AB Design of a physical security perimeter fencing system requires that security designers provide effective detection, delay, and response functionalities with minimal nuisance alarms. In addition, the designers must take into considerations the security fence system life cycle cost (equipment and grounds maintenance), complexity of the terrain, safety, and environmental conditions (location of where the security fence will be installed). Often, these factors drive the security designers to design a perimeter intrusion detection and assessment system (PIDAS) that includes: 1) larger than desired footprint, 2) one or more animal control fences to minimize the nuisance alarm rate (NAR), and 3) clear zones and an isolation zone to facilitate intrusion detection and assessment by keeping the fence lines clear of vegetation, trash, and other objects that could impede the security system's performance. This paper presents a two-tier PIDAS design that focuses on effective performance specifically in high probability of detection and low NAR that minimizes cost and the footprint of the system.
C1 [Lin, Han; Ross, Michael; Mack, Thomas] USN, Phys Secur Dept, Sandia Natl Labs, Albuquerque, NM USA.
RP Lin, H (reprint author), USN, Phys Secur Dept, Sandia Natl Labs, Albuquerque, NM USA.
EM hwlin@sandia.gov; mpross@sandia.gov; tkmack@sandia.gov
NR 4
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 1071-6572
BN 978-1-4244-7400-4
J9 INT CARN CONF SECU
PY 2010
BP 205
EP 210
DI 10.1109/CCST.2010.5678719
PG 6
WC Computer Science, Theory & Methods; Engineering, Electrical & Electronic
SC Computer Science; Engineering
GA BTO44
UT WOS:000287496000030
ER
PT S
AU Craparo, EM
AF Craparo, E. M.
GP IEEE
TI Constrained Node Placement and Assignment in Mobile Backbone Networks
SO 49TH IEEE CONFERENCE ON DECISION AND CONTROL (CDC)
SE IEEE Conference on Decision and Control
LA English
DT Proceedings Paper
CT 49th IEEE Conference on Decision and Control (CDC)
CY DEC 15-17, 2010
CL Atlanta, GA
SP IEEE
ID POWER-CONTROL; CELLULAR NETWORKS; ALGORITHM
AB This paper describes new algorithms for mobile backbone network optimization. In this hierarchical communication framework, mobile backbone nodes (MBNs) are deployed to provide communication support for regular nodes (RNs). While previous work has assumed that MBNs are unconstrained in position, this work models constraints in MBN location. This paper develops an exact technique for maximizing the number of RNs that achieve a threshold throughput level, as well as a polynomial-time approximation algorithm for this problem. The approximation algorithm carries a performance guarantee of 1/2, and we demonstrate that this guarantee is tight in some problem instances.
C1 USN, Postgrad Sch, Dept Operat Res, Monterey, CA 93940 USA.
RP Craparo, EM (reprint author), USN, Postgrad Sch, Dept Operat Res, Monterey, CA 93940 USA.
EM emcrapar@nps.edu
NR 25
TC 0
Z9 0
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 0191-2216
BN 978-1-4244-7746-3
J9 IEEE DECIS CONTR P
PY 2010
BP 986
EP 991
DI 10.1109/CDC.2010.5717335
PG 6
WC Automation & Control Systems; Engineering, Electrical & Electronic
SC Automation & Control Systems; Engineering
GA BWV28
UT WOS:000295049101039
ER
PT S
AU Li, ZY
Hovakimyan, N
Dobrokhodov, V
Kaminer, I
AF Li, Zhiyuan
Hovakimyan, Naira
Dobrokhodov, Vladimir
Kaminer, Isaac
GP IEEE
TI Vision-based Target Tracking and Motion Estimation Using a Small UAV
SO 49TH IEEE CONFERENCE ON DECISION AND CONTROL (CDC)
SE IEEE Conference on Decision and Control
LA English
DT Proceedings Paper
CT 49th IEEE Conference on Decision and Control (CDC)
CY DEC 15-17, 2010
CL Atlanta, GA
SP IEEE
ID VEHICLES
AB This work extends the earlier results on passive vision-based tracking and motion estimation of a ground vehicle. The follower small unmanned air vehicle (UAV) is equipped with a single gimbaled pan/tilt camera and a high bandwidth wireless link for video and command transmitting. The objective is for the UAV to maintain a horizontal circular orbit about the target with a predefined radius and to concurrently provide real-time estimation of the target's position, speed and heading. The target velocity estimation problem is formulated such that the recently developed L-1 fast adaptive estimator can be applied. We give a rigorous proof of asymptotic stability for the guidance law for the static target case, and provide a reformulation of the control objective for the moving target case so that the existing controller can be applied naturally.
C1 [Li, Zhiyuan; Hovakimyan, Naira] UIUC, Dept Mech Sci & Engn, Urbana, IL 61801 USA.
[Dobrokhodov, Vladimir; Kaminer, Isaac] US Navy, Postgrad Sch, Dept Mech & Austronaut Engn, Monterey, CA 93943 USA.
RP Li, ZY (reprint author), UIUC, Dept Mech Sci & Engn, Urbana, IL 61801 USA.
EM li64@illniois.edu; nhovakim@illniois.edu; vldobr@nps.edu;
kaminer@nps.edu
RI Dobrokhodov, Vladimir/C-3443-2009
FU AFOSR [FA9550-09-1-0265]; ONR [N0001408WR20287]
FX Research is supported by AFOSR under Contract No. FA9550-09-1-0265 and
ONR under grant No. N0001408WR20287.
NR 13
TC 6
Z9 6
U1 0
U2 5
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 0743-1546
BN 978-1-4244-7746-3
J9 IEEE DECIS CONTR P
PY 2010
BP 2505
EP 2510
DI 10.1109/CDC.2010.5718149
PG 6
WC Automation & Control Systems; Engineering, Electrical & Electronic
SC Automation & Control Systems; Engineering
GA BWV28
UT WOS:000295049102138
ER
PT S
AU Justh, EW
Krishnaprasad, PS
AF Justh, E. W.
Krishnaprasad, P. S.
GP IEEE
TI Extremal Collective Behavior
SO 49TH IEEE CONFERENCE ON DECISION AND CONTROL (CDC)
SE IEEE Conference on Decision and Control
LA English
DT Proceedings Paper
CT 49th IEEE Conference on Decision and Control (CDC)
CY DEC 15-17, 2010
CL Atlanta, GA
SP IEEE
ID MOTION CAMOUFLAGE; STEERING LAWS
AB Curves and natural frames can be used for describing and controlling motion in both biological and engineering contexts (e. g., pursuit and formation control). The geometry of curves and frames leads naturally to a Lie group formulation where coordinated motion is represented by interacting particles on Lie groups - specifically, SE(2) or SE(3). Here we consider a particular type of optimal control problem in which the interactions between particles arise from a cost function dependent on each particle's steering, and which penalizes steering differences between the particles (expressed via the graph Laplacian). With this choice of cost function, we are able to perform Lie-Poisson reduction. Furthermore, we are able to derive a closed-form expression (using Jacobi elliptic functions) for certain special solutions of the coupled multi-particle problem on SE(2).
C1 [Justh, E. W.] USN, Res Lab, Washington, DC 20375 USA.
[Krishnaprasad, P. S.] Univ Maryland, Inst Sys Res, College Pk, MD 20742 USA.
[Krishnaprasad, P. S.] Univ Maryland, Dept Elect & Comp Engn, College Pk, MD 20742 USA.
RP Justh, EW (reprint author), USN, Res Lab, Washington, DC 20375 USA.
EM krishna@umd.edu
FU Air Force Office of Scientific Research under AFOSR [FA9550710446,
FA95501010250]; Army Research Office under ARO [W911NF0610325]; ODDR&E
through the Office of Naval Research [N000140710734]; Office of Naval
Research
FX This research was supported in part by the Air Force Office of
Scientific Research under AFOSR grants FA9550710446 and FA95501010250;
the Army Research Office under ARO grant W911NF0610325; by the ODDR&E
MURI2007 Program Grant N000140710734 (through the Office of Naval
Research); and by the Office of Naval Research
NR 18
TC 2
Z9 2
U1 0
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 0743-1546
BN 978-1-4244-7746-3
J9 IEEE DECIS CONTR P
PY 2010
BP 5432
EP 5437
DI 10.1109/CDC.2010.5717300
PG 6
WC Automation & Control Systems; Engineering, Electrical & Electronic
SC Automation & Control Systems; Engineering
GA BWV28
UT WOS:000295049106032
ER
PT S
AU Park, C
Ross, IM
Gong, Q
Yan, H
AF Park, Chandeok
Ross, I. Michael
Gong, Qi
Yan, Hui
GP IEEE
TI Necessary Conditions for Singular Arcs for General Restricted Multi-Body
Problem
SO 49TH IEEE CONFERENCE ON DECISION AND CONTROL (CDC)
SE IEEE Conference on Decision and Control
LA English
DT Proceedings Paper
CT 49th IEEE Conference on Decision and Control (CDC)
CY DEC 15-17, 2010
CL Atlanta, GA
SP IEEE
ID INTERMEDIATE-THRUST ARCS; ROCKET TRAJECTORIES; PSEUDOSPECTRAL METHOD;
EXTREMALS; OPTIMALITY; FIELD
AB We analyze the optimality of intermediate thrust arcs (singular arcs) of a rocket trajectory subject to multiple gravitational bodies in the restricted multi-body problem. We derive a series of necessary conditions for optimality including the generalized Legendre-Clebsch condition, and an explicit formula for the singular optimal control law. Our derivations become identical to Lawden's classical result if the equations of motion are reduced for a central gravity field. As a means to illustrate the practical nature of our results, we apply them to a Moon-Earth transfer problem and show that the extremal solution is bang-singular-bang.
C1 [Park, Chandeok] USN, Control & Optimizat Labs, Postgrad Sch, Monterey, CA 93943 USA.
[Ross, I. Michael] USN, Mech & Astronaut Engn, Postgrad Sch, Monterey, CA 93943 USA.
[Gong, Qi; Yan, Hui] Univ Calif Santa Cruz, Dept Appl Math & Stat, Santa Cruz, CA 95064 USA.
RP Park, C (reprint author), USN, Control & Optimizat Labs, Postgrad Sch, Monterey, CA 93943 USA.
EM cpar1@nps.edu; imross@nps.edu; qigong@soe.ucsc.edu; hyan@soe.ucsc.edu
NR 38
TC 1
Z9 1
U1 0
U2 0
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 0743-1546
BN 978-1-4244-7746-3
J9 IEEE DECIS CONTR P
PY 2010
BP 5816
EP 5821
DI 10.1109/CDC.2010.5717305
PG 6
WC Automation & Control Systems; Engineering, Electrical & Electronic
SC Automation & Control Systems; Engineering
GA BWV28
UT WOS:000295049106094
ER
PT S
AU Hunt, T
Krener, AJ
AF Hunt, Thomas
Krener, Arthur J.
GP IEEE
TI Improved Patchy Solution to the Hamilton-Jacobi-Bellman Equations
SO 49TH IEEE CONFERENCE ON DECISION AND CONTROL (CDC)
SE IEEE Conference on Decision and Control
LA English
DT Proceedings Paper
CT 49th IEEE Conference on Decision and Control (CDC)
CY DEC 15-17, 2010
CL Atlanta, GA
SP IEEE
AB We test a new patch type for the patchy approximate solution to the Hamilton-Jacobi-Bellman equations, and we see an improvement in the worst relative error on a nonlinear test problem.
C1 [Hunt, Thomas] Univ Calif Davis, Dept Math, Davis, CA 95616 USA.
[Krener, Arthur J.] US Navy, Postgrad Sch, Dept Math Appl, Monterey, CA 93943 USA.
RP Hunt, T (reprint author), Univ Calif Davis, Dept Math, Davis, CA 95616 USA.
EM hunttw@math.ucdavis.edu; ajkrener@nps.edu
NR 7
TC 1
Z9 1
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 0743-1546
BN 978-1-4244-7746-3
J9 IEEE DECIS CONTR P
PY 2010
BP 5835
EP 5839
DI 10.1109/CDC.2010.5717875
PG 5
WC Automation & Control Systems; Engineering, Electrical & Electronic
SC Automation & Control Systems; Engineering
GA BWV28
UT WOS:000295049106097
ER
PT S
AU Galloway, KS
Justh, EW
Krishnaprasad, PS
AF Galloway, K. S.
Justh, E. W.
Krishnaprasad, P. S.
GP IEEE
TI Cyclic pursuit in three dimensions
SO 49TH IEEE CONFERENCE ON DECISION AND CONTROL (CDC)
SE IEEE Conference on Decision and Control
LA English
DT Proceedings Paper
CT 49th IEEE Conference on Decision and Control (CDC)
CY DEC 15-17, 2010
CL Atlanta, GA
SP IEEE
ID FLIGHT; PATHS
AB Pursuit strategies for interacting particles and feedback laws to execute them are formulated in three dimensions, focusing on constant bearing (CB) pursuit - a case of interest in biology. In the analysis of such laws for the setting of n particles engaged in cyclic pursuit, we reveal interesting invariant manifold dynamics and associated explicit integrability properties, as well as conditions for special solutions such as relative equilibria.
C1 [Galloway, K. S.; Krishnaprasad, P. S.] Univ Maryland, Inst Syst Res, College Pk, MD 20742 USA.
[Galloway, K. S.; Krishnaprasad, P. S.] Univ Maryland, Dept Elect & Comp Engn, College Pk, MD 20742 USA.
[Justh, E. W.] US Navy, Res Lab, Washington, DC 20375 USA.
RP Galloway, KS (reprint author), Univ Maryland, Inst Syst Res, College Pk, MD 20742 USA.
EM kgallow1@umd.edu; krishna@umd.edu
FU Air Force Office of Scientific Research under AFOSR [FA9550710446,
FA95501010250]; Army Research Office under ARO [W911NF0610325]; ODDRE
MURI Program [N000140710734]; NSF-NIH Collaborative Research in
Computational Neuroscience Program NIH-NIBIB [R01 EB004750-01]; Office
of Naval Research
FX This research was supported in part by the Air Force Office of
Scientific Research under AFOSR grants FA9550710446 and FA95501010250;
by the Army Research Office under ARO grant W911NF0610325; by the ODDR&E
MURI2007 Program Grant N000140710734 (through the Office of Naval
Research); by the NSF-NIH Collaborative Research in Computational
Neuroscience Program (CRCNS2004) NIH-NIBIB grant 1 R01 EB004750-01; and
by the Office of Naval Research.
NR 10
TC 7
Z9 7
U1 0
U2 1
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 0743-1546
BN 978-1-4244-7746-3
J9 IEEE DECIS CONTR P
PY 2010
BP 7141
EP 7146
DI 10.1109/CDC.2010.5717459
PG 6
WC Automation & Control Systems; Engineering, Electrical & Electronic
SC Automation & Control Systems; Engineering
GA BWV28
UT WOS:000295049108017
ER
PT B
AU Owens, MT
AF Owens, Mackubin Thomas
BE Billings, R
Williams, FJ
TI Abraham Lincoln as Practical Constitutional Lawyer
SO ABRAHAM LINCOLN, ESQ.: THE LEGAL CAREER OF AMERICA'S GREATEST PRESIDENT
LA English
DT Article; Book Chapter
C1 USN, War Coll, Newport, RI USA.
RP Owens, MT (reprint author), USN, War Coll, Newport, RI USA.
NR 44
TC 0
Z9 0
U1 0
U2 0
PU UNIV PRESS KENTUCKY
PI LEXINGTON
PA 102 LAFFERTY HALL, UNIVERSITY OF KENTUCKY, LEXINGTON, KY 40506 USA
BN 978-0-8131-2609-8
PY 2010
BP 205
EP 227
PG 23
WC History
SC History
GA BXS71
UT WOS:000296908900012
ER
PT B
AU Giuliani, JR
Kilcoyne, KG
Rue, JPH
AF Giuliani, Jeffrey R.
Kilcoyne, Kelly G.
Rue, John-Paul H.
BE Bach, BR
Provencher, MT
TI ANATOMY IMPORTANT FOR SUCCESSFUL ACL RECONSTRUCTION
SO ACL SURGERY: HOW TO GET IT RIGHT THE FIRST TIME AND WHAT TO DO IF IT
FAILS
LA English
DT Article; Book Chapter
ID ANTERIOR CRUCIATE LIGAMENT; FEMORAL TUNNEL PLACEMENT; IN-SITU FORCES;
PATELLAR TENDON; POSTEROLATERAL BUNDLES; CORONAL PLANE; TIBIAL TUNNEL;
SINGLE-BUNDLE; INTERCONDYLAR NOTCH; GRAFTS
C1 [Giuliani, Jeffrey R.; Kilcoyne, Kelly G.] Walter Reed Army Med Ctr, Washington, DC 20307 USA.
[Rue, John-Paul H.] USN Acad, Annapolis, MD 21402 USA.
RP Giuliani, JR (reprint author), Walter Reed Army Med Ctr, Washington, DC 20307 USA.
NR 46
TC 0
Z9 0
U1 0
U2 0
PU SLACK INC
PI THOROFARE
PA 6900 GROVE ROAD, THOROFARE, NJ 08086-9447 USA
BN 978-1-55642-895-1
PY 2010
BP 9
EP 17
PG 9
WC Surgery
SC Surgery
GA BPE41
UT WOS:000278696100002
ER
PT B
AU Covey, DC
Solomon, DJ
AF Covey, Dana C.
Solomon, Daniel J.
BE Bach, BR
Provencher, MT
TI SURGICAL STRATEGIES FOR ACUTE COMBINED INJURY Posterolateral Corner and
ACL: How to Manage the Posterolateral Injury
SO ACL SURGERY: HOW TO GET IT RIGHT THE FIRST TIME AND WHAT TO DO IF IT
FAILS
LA English
DT Article; Book Chapter
ID ANTERIOR CRUCIATE LIGAMENT; FIBULAR COLLATERAL LIGAMENT; KNEE COMPLEX
INJURIES; POPLITEOFIBULAR LIGAMENT; BIOMECHANICAL ANALYSIS; ROTATORY
INSTABILITY; POPLITEUS TENDON; DRAWER TEST; RECONSTRUCTION; DISLOCATION
C1 [Covey, Dana C.; Solomon, Daniel J.] USN, Dept Orthopaed Surg, San Diego Med Ctr, San Diego, CA 92152 USA.
RP Covey, DC (reprint author), USN, Dept Orthopaed Surg, San Diego Med Ctr, San Diego, CA 92152 USA.
NR 50
TC 0
Z9 0
U1 0
U2 1
PU SLACK INC
PI THOROFARE
PA 6900 GROVE ROAD, THOROFARE, NJ 08086-9447 USA
BN 978-1-55642-895-1
PY 2010
BP 151
EP 158
PG 8
WC Surgery
SC Surgery
GA BPE41
UT WOS:000278696100014
ER
PT B
AU Battaglia, MJ
Provencher, MT
AF Battaglia, Michael J.
Provencher, Matthew T.
BE Bach, BR
Provencher, MT
TI ACUTE MEDIAL COLLATERAL LIGAMENT INJURIES Management and Considerations
With ACL Injury
SO ACL SURGERY: HOW TO GET IT RIGHT THE FIRST TIME AND WHAT TO DO IF IT
FAILS
LA English
DT Article; Book Chapter
ID ANTERIOR CRUCIATE LIGAMENT; POSTERIOR OBLIQUE LIGAMENT; NON-OPERATIVE
TREATMENT; SURGICAL TREATMENT; COMPLETE TEARS; KNEE; RECONSTRUCTION;
RUPTURE
C1 [Battaglia, Michael J.] USN Acad, Annapolis, MD 21402 USA.
[Provencher, Matthew T.] Uniformed Serv Univ Hlth Sci, San Diego, CA USA.
[Provencher, Matthew T.] USN, San Diego Med Ctr, San Diego, CA 92152 USA.
RP Battaglia, MJ (reprint author), USN Acad, Annapolis, MD 21402 USA.
NR 29
TC 0
Z9 0
U1 0
U2 0
PU SLACK INC
PI THOROFARE
PA 6900 GROVE ROAD, THOROFARE, NJ 08086-9447 USA
BN 978-1-55642-895-1
PY 2010
BP 159
EP 163
PG 5
WC Surgery
SC Surgery
GA BPE41
UT WOS:000278696100015
ER
PT B
AU Provencher, MT
Lanzi, J
Rose, M
Solomon, DJ
AF Provencher, Matthew T.
Lanzi, Joseph
Rose, Matthew
Solomon, Daniel J.
BE Bach, BR
Provencher, MT
TI MANAGEMENT OF COMBINED MENISCAL AND ACL INSUFFICIENCY AFTER
RECONSTRUCTION The Role of Meniscal Transplant
SO ACL SURGERY: HOW TO GET IT RIGHT THE FIRST TIME AND WHAT TO DO IF IT
FAILS
LA English
DT Article; Book Chapter
ID ANTERIOR CRUCIATE LIGAMENT; ALLOGRAFT TRANSPLANTATION; FOLLOW-UP; TIBIAL
PLATEAU; KNEE; MENISCECTOMY; GRAFT; STABILITY
C1 [Provencher, Matthew T.] Uniformed Serv Univ Hlth Sci, San Diego, CA USA.
[Rose, Matthew; Solomon, Daniel J.] USN, Dept Orthopaed Surg, San Diego Med Ctr, San Diego, CA 92152 USA.
[Lanzi, Joseph] Tripler Army Med Ctr, Honolulu, HI 96859 USA.
RP Provencher, MT (reprint author), Uniformed Serv Univ Hlth Sci, San Diego, CA USA.
NR 40
TC 0
Z9 0
U1 0
U2 0
PU SLACK INC
PI THOROFARE
PA 6900 GROVE ROAD, THOROFARE, NJ 08086-9447 USA
BN 978-1-55642-895-1
PY 2010
BP 297
EP 310
PG 14
WC Surgery
SC Surgery
GA BPE41
UT WOS:000278696100029
ER
PT B
AU Provencher, MT
Ganal, EA
Coseo, M
AF Provencher, Matthew T.
Ganal, Edmund A.
Coseo, Mark
BE Bach, BR
Provencher, MT
TI ACL REVISION CASES
SO ACL SURGERY: HOW TO GET IT RIGHT THE FIRST TIME AND WHAT TO DO IF IT
FAILS
LA English
DT Article; Book Chapter
C1 [Provencher, Matthew T.] Uniformed Serv Univ Hlth Sci, San Diego, CA USA.
[Coseo, Mark] USN, Dept Orthopaed Surg, San Diego Med Ctr, San Diego, CA 92152 USA.
RP Provencher, MT (reprint author), Uniformed Serv Univ Hlth Sci, San Diego, CA USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU SLACK INC
PI THOROFARE
PA 6900 GROVE ROAD, THOROFARE, NJ 08086-9447 USA
BN 978-1-55642-895-1
PY 2010
BP 369
EP 383
PG 15
WC Surgery
SC Surgery
GA BPE41
UT WOS:000278696100035
ER
PT J
AU Prasuhn, DE
Blanco-Canosa, JB
Vora, GJ
Delehanty, JB
Susumu, K
Mei, BC
Dawson, PE
Medintz, IL
AF Prasuhn, Duane E.
Blanco-Canosa, Juan B.
Vora, Gary J.
Delehanty, James B.
Susumu, Kimihiro
Mei, Bing C.
Dawson, Philip E.
Medintz, Igor L.
TI Combining Chemoselective Ligation with Polyhistidine-Driven
Self-Assembly for the Modular Display of Biomolecules on Quantum Dots
SO ACS NANO
LA English
DT Article
DE quantum dot; nanocrystal; peptide; DNA; chemoselective ligation;
bioconjugation; hybridization; cellular delivery; polyhistidine;
self-assembly
ID RESONANCE ENERGY-TRANSFER; INTRACELLULAR DELIVERY; GOLD NANOPARTICLES;
PEPTIDE; PROTEIN; STABILITY; LIGANDS; SEMICONDUCTOR; NANOCRYSTALS; CDSE
AB One of the principle hurdles to wider incorporation of semiconductor quantum dots (QDs) in biology is the lack of facile linkage chemistries to create different types of functional QD-bioconjugates. A two-step modular strategy for the presentation of biomolecules on CdSe/ZnS core/shell QDs is described here which utilizes a chemoselective, aniline-catalyzed hydrazone coupling chemistry to append hexahistidine sequences onto peptides and DNA. This specifically provides them the ability to ratiometrically self-assemble to hydrophilic QDs. The versatility of this labeling approach was highlighted by ligating proteolytic substrate peptides, an oligoarginine cell-penetrating peptide, or a DNA-probe to cognate hexahistidine peptidyl sequences. The modularity allowed subsequently self-assembled QD constructs to engage in different types of targeted bioassays. The self-assembly and photophysical properties of individual CID conjugates were first confirmed by gel electrophoresis and Forster resonance energy transfer analysis. OD-dye-labeled peptide conjugates were then used as biosensors to quantitatively monitor the proteolytic activity of caspase-3 or elastase enzymes from different species. These sensors allowed the determination of the corresponding kinetic parameters, including the Michaelis constant (K-M) and the maximum proteolytic activity (V-max). QDs decorated with cell-penetrating peptides were shown to be successfully internalized by HEK 293T/17 cells, while nanocrystals displaying peptide-DNA conjugates were utilized as fluorescent probes in hybridization microarray assays. This modular approach for displaying peptides or DNA on QDs may be extended to other more complex biomolecules such as proteins or utilized, with different types of nanoparticle materials.
C1 [Prasuhn, Duane E.; Vora, Gary J.; Delehanty, James B.; Medintz, Igor L.] USN, Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 USA.
[Susumu, Kimihiro; Mei, Bing C.] USN, Res Lab, Div Opt Sci, Washington, DC 20375 USA.
[Blanco-Canosa, Juan B.; Dawson, Philip E.] Scripps Res Inst, Dept Cell Biol, La Jolla, CA 92037 USA.
[Blanco-Canosa, Juan B.; Dawson, Philip E.] Scripps Res Inst, Dept Chem, La Jolla, CA 92037 USA.
RP Medintz, IL (reprint author), USN, Res Lab, Ctr Bio Mol Sci & Engn, Code 6900, Washington, DC 20375 USA.
EM igor.medintz@nrl.navy.mil
OI Vora, Gary/0000-0002-0657-8597
FU CB Directorate/Physical S&T Division DTRA/ARO; ONR; NRL; NRL-NSI;
American Society for Engineering Education Fellowship through the Naval
Research Laboratory; Marie Curie Foundation; NIH [GM059380]
FX The authors acknowledge the CB Directorate/Physical S&T Division
DTRA/ARO, ONR, NRL, and the NRL-NSI for financial support, D. Prasuhn is
supported by an American Society for Engineering Education Fellowship
through the Naval Research Laboratory. J.B. Blanco-Canosa gratefully
acknowledges the Marie Curie Foundation for a postdoctoral fellowship.
P. Dawson acknowledges NIH grant GM059380 and is a consultant for
Solulink Inc, San Diego, CA.
NR 52
TC 61
Z9 62
U1 6
U2 61
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 1936-0851
EI 1936-086X
J9 ACS NANO
JI ACS Nano
PD JAN
PY 2010
VL 4
IS 1
BP 267
EP 278
DI 10.1021/nn901393v
PG 12
WC Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience &
Nanotechnology; Materials Science, Multidisciplinary
SC Chemistry; Science & Technology - Other Topics; Materials Science
GA 547CP
UT WOS:000273863400035
PM 20099912
ER
PT S
AU Duperre, JA
Gilbreath, GC
Font, CO
Bajramaj, B
Hidalgo, JS
AF Duperre, Joseph A., III
Gilbreath, G. Charmaine
Font, Carlos O.
Bajramaj, Blerta
Hidalgo, J. Sebastian
BE Gilbreath, GC
Hawley, CT
TI FM-MRR Analog Audio Transmission through a Scintillated Channel
SO ACTIVE AND PASSIVE SIGNATURES
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Active and Passive Signatures
CY APR 08-09, 2010
CL Orlando, FL
SP SPIE
DE Modulating retroreflector; free space optical communications;
scintillation; analog modulation
AB In this work, a free-space infrared communications system is described. The system has the capability of using previously captured scintillation data and introducing the effects onto the bench-top system. This effectively acts as a scintillation simulator which emulates an optical link that is effected by the weather and various physical conditions at the time of transmission. The method used for scintillation simulation is described. The transmission method of the system is a hybrid combination of traditional frequency modulation (FM) and optical amplitude modulation (OAM) combined with Multiple Quantum Well (MQW) Modulating Retroreflector (MRR) technology. The result has produced a robust, low power system that is capable of transmitting real-time audio information with high clarity along a channel that accurately simulates the atmospheric effects of scintillation. The system is capable of transmitting along a link of several kilometers, depending specifically on the characteristics of the interrogator and sensor components chosen for the system.
C1 [Duperre, Joseph A., III; Gilbreath, G. Charmaine; Font, Carlos O.; Bajramaj, Blerta; Hidalgo, J. Sebastian] USN, Res Lab, Freespace Photon Commun Off, Washington, DC 20375 USA.
RP Duperre, JA (reprint author), USN, Res Lab, Freespace Photon Commun Off, Code 5505, Washington, DC 20375 USA.
EM joseph.duperre@nrl.navy.mil; carlos.font@nrl.navy.mil
NR 7
TC 0
Z9 0
U1 1
U2 3
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8151-1
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7687
AR 76870P
DI 10.1117/12.855449
PG 8
WC Computer Science, Interdisciplinary Applications; Optics
SC Computer Science; Optics
GA BSQ81
UT WOS:000285499700018
ER
PT S
AU Grun, J
Bowles, J
Gillis, D
Kunapareddy, P
Lunsford, R
Manka, CK
Nikitin, S
Wang, Z
AF Grun, Jacob
Bowles, Jeffrey
Gillis, David
Kunapareddy, Pratima
Lunsford, Robert
Manka, Charles K.
Nikitin, Sergei
Wang, Zheng
BE Gilbreath, GC
Hawley, CT
TI Tunable-multi-wavelength resonance-Raman detection of bacteria and
chemicals in complex environments
SO ACTIVE AND PASSIVE SIGNATURES
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Active and Passive Signatures
CY APR 08-09, 2010
CL Orlando, FL
SP SPIE
DE resonance-Raman; resonance; Raman; Multi wavelength; detection;
signatures
ID IDENTIFICATION; SPECTROSCOPY; FILTER
AB We are developing tunable-multi-wavelength resonance-Raman spectroscopy and algorithms to enable rapid detection and identification of bacteria and chemicals in complex environments. The system, dubbed SWOrRD, is capable of illuminating a sample containing many chemicals or biological agents with a sequence of laser wavelengths between 210nm and 2000nm; a range which encompasses the resonant frequencies of cells, microorganisms, cellular metabolites, and many chemicals; and measures the resonance-Raman spectra of light scattered from the sample at each laser wavelength. These multiple spectra, which contain much more information about the bond structure that is contained in a single spectrum, are analyzed by a linear-mixture algorithm, based on NRL's ORASIS, to determine the chemical and bacteriological constituents of the sample. The current status of the research will be described.
C1 [Grun, Jacob] USN, Div Plasma Phys, Res Lab, Washington, DC 20375 USA.
RP Grun, J (reprint author), USN, Div Plasma Phys, Res Lab, Washington, DC 20375 USA.
EM Jacob.Grun@NRL.NAVY.MIL
RI Nikitin, Sergei/A-7156-2012
NR 10
TC 5
Z9 5
U1 0
U2 2
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8151-1
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7687
AR 768706
DI 10.1117/12.863209
PG 12
WC Computer Science, Interdisciplinary Applications; Optics
SC Computer Science; Optics
GA BSQ81
UT WOS:000285499700004
ER
PT S
AU Hamlington, PE
Oran, ES
AF Hamlington, Peter E.
Oran, Elaine S.
BE Gilbreath, GC
Hawley, CT
TI Signatures of Turbulence in Atmospheric Laser Propagation
SO ACTIVE AND PASSIVE SIGNATURES
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Active and Passive Signatures
CY APR 08-09, 2010
CL Orlando, FL
SP SPIE
DE Atmospheric Turbulence; Non-Kolmogorov Turbulence; Laser Propagation;
Scintillation
ID REFRACTIVE-INDEX; SPECTRUM; TEMPERATURE; KOLMOGOROV; FLUID; MODEL; FLOW
AB The signatures of turbulence in atmospheric laser propagation are examined, with a particular focus on the effects of non-Kolmogorov turbulence on laser scintillation and phase fluctuations. Non-Kolmogorov properties of the atmospheric index-of-refraction spectrum are outlined, and it is shown that it may be possible to reproduce these features through broadband power-law forcing of the velocity and temperature fields in turbulent flows. Numerical simulations of homogeneous isotropic turbulence subjected to power-law forcing are used to motivate a spectral model for the kinetic energy, which is then extended to address power-law forcing of passive scalars such as the temperature. A modeled non-Kolmogorov index-of-refraction spectrum for power-law forced turbulence is proposed, where the model spectrum consists of standard Kolmogorov and forcing-dominated contributions. This form could reproduce the experimentally observed signatures of atmospheric turbulence on laser propagation and it may provide insights into the origins of non-Kolmogorov turbulence in the atmosphere.
C1 [Hamlington, Peter E.; Oran, Elaine S.] USN, Lab Computat Phys & Fluid Dynam, Res Lab, Washington, DC 20375 USA.
RP Hamlington, PE (reprint author), USN, Lab Computat Phys & Fluid Dynam, Res Lab, Washington, DC 20375 USA.
EM peterh@lcp.nrl.navy.mil
NR 30
TC 1
Z9 1
U1 2
U2 2
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8151-1
J9 PROC SPIE
PY 2010
VL 7687
AR 76870M
DI 10.1117/12.855447
PG 12
WC Computer Science, Interdisciplinary Applications; Optics
SC Computer Science; Optics
GA BSQ81
UT WOS:000285499700017
ER
PT S
AU Pipitone, F
AF Pipitone, Frank
BE Gilbreath, GC
Hawley, CT
TI Manifold Learning for Compression and Generalization of Euclidean
Invariant Signatures of Surface Shapes
SO ACTIVE AND PASSIVE SIGNATURES
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Active and Passive Signatures
CY APR 08-09, 2010
CL Orlando, FL
SP SPIE
DE object recognition; detection; range images; Euclidean invariants;
generic shape recognition; tripod operators; UXO identification; EOD
AB We introduce an approach to the efficient recognition of families of surface shapes in range images. This builds upon earlier work on Tripod Operators (TOs), a method for extracting small sets of N points from 3D surface data in a canonical way such that coordinate independent shape descriptions can be efficiently generated and compared. Using TOs, a specific surface shape generates a signature which is a manifold of dimension <= 3 in a feature space of dimension d = N - 3. A runtime application of a TO on surface data generates a d-vector whose distance from the signature manifold is closely related to the likelihood of a match. Ordnance identification is a motivating application.
In order to use TOs for recognizing objects from large sets of known shapes, and families of shapes, we introduce the use of manifold learning to represent the signature manifolds with piecewise analytic descriptions instead of discrete point sets. We consider the example of generalizing the signatures of several artillery shells which are qualitatively the same in shape, but metrically different. This can yield a signature that is only slightly more complex than the originals, but enables efficient recognition of a continuous family of shapes.
C1 [Pipitone, Frank] USN, Res Lab, Washington, DC 20375 USA.
RP Pipitone, F (reprint author), USN, Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA.
NR 9
TC 2
Z9 2
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8151-1
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7687
AR 768702
DI 10.1117/12.855434
PG 7
WC Computer Science, Interdisciplinary Applications; Optics
SC Computer Science; Optics
GA BSQ81
UT WOS:000285499700001
ER
PT S
AU Ramsey, SA
Peak, J
Setlik, B
AF Ramsey, Scott A.
Peak, Joseph
Setlik, Brian
BE Gilbreath, GC
Hawley, CT
TI Technical assessment of low light color camera technology
SO ACTIVE AND PASSIVE SIGNATURES
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Active and Passive Signatures
CY APR 08-09, 2010
CL Orlando, FL
SP SPIE
DE Low light color camera; night vision; true color night vision; image
intensifier; camouflage BDU
AB In nighttime overcast conditions with a new moon (near-total darkness), typical light levels may only reach 10(-2)-10(-4) lux. As such, standard CCD/CMOS video cameras have insufficient sensitivity to capture useful images. Third generation night vision cameras (Gen III NV) are the state-of-the-art in terms of imaging clarity and resolution at this light level, but rely on green or green/yellow phosphors to produce monochromatic images while true color information is lost. More recently, low-light color video cameras have become commercially available which are purportedly able to produce true-color images at rates of 15-30 frames per second (fps) in near-total darkness without loss in clarity. This study determined if the sensitivities of two low-light color video cameras, Toshiba's IK-1000 EMCCD and Opto-Knowledge System's (OKSI) True Color Night Vision (TCNV) cameras are comparable to current Gen II/III NV technology. NRL, in a joint effort with NSWC Carderock Division, quantified the effectiveness of these cameras in terms of objective laboratory characterization and subjective field testing. Laboratory tests included signal-to-noise (S/N), spectral response, and imaging quality at 2, 15, and 30 frames per second (fps). Field tests were performed at 8, 15, and 30 fps to determine clarity and color composition of camouflaged human subjects and stationary objects from a set number of standoff distances under near-total darkness (measured at 10(-8)-10(-10) W/cm(2) sr @ 650nm). Low-light camera video was qualitatively compared to imagery taken by Stanford Photonics Mega-10 Gen III Night Vision Scientific and Tactical Imagers under identical conditions.
C1 [Ramsey, Scott A.; Peak, Joseph] USN, Res Lab, Washington, DC 20375 USA.
RP Ramsey, SA (reprint author), USN, Res Lab, 4555 Overlook Ave, Washington, DC 20375 USA.
EM ramsey@enews.nrl.navy.mil
NR 2
TC 0
Z9 0
U1 1
U2 6
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8151-1
J9 PROC SPIE
PY 2010
VL 7687
AR 76870H
DI 10.1117/12.863211
PG 18
WC Computer Science, Interdisciplinary Applications; Optics
SC Computer Science; Optics
GA BSQ81
UT WOS:000285499700013
ER
PT S
AU Restaino, SR
Martinez, T
Andrews, JR
Wilcox, CC
Santiago, F
Payne, DM
AF Restaino, Sergio R.
Martinez, Ty
Andrews, Jonathan R.
Wilcox, Christopher C.
Santiago, Freddie
Payne, Don M.
BE Khounsary, AM
ODell, SL
Restaino, SR
TI The Naval Research Laboratory MEM Adaptive Optics Program
SO ADAPTIVE X-RAY OPTICS
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Adaptive X-Ray Optics
CY AUG 03-05, 2010
CL San Diego, CA
SP SPIE
AB The Naval Prototype Optical Interferometer (NPOI) is the longest baseline interferometer operating at visible wavelengths in the world. The astronomical capabilities of such an instrument are being exploited and recent results will be presented. NPOI is also the largest optical telescope belonging to the US Department of Defense with a maximum baseline of 435 meter has a resolution that is approximately 181 times the resolution attainable by the Hubble Space Telescope (HST) and 118 times the resolution attainable by the Advanced Electro-Optical System (AEOS). It is also the only optical interferometer capable of recombining up to six apertures simultaneously. The NPOI is a sparse aperture and its sensitivity is limited by the size of the unit aperture, currently that size is 0.5 meters. In order to increase the overall sensitivity of the instrument a program was started to manufacture larger, 1.4 meter, ultra-light telescopes. The lightness of the telescopes requirement is due to the fact that telescopes have to be easily transportable in order to reconfigure the array. For this reason a program was started three years ago to investigate the feasibility of manufacturing Carbon Fiber Reinforced Polymer (CFRP) telescopes, including the optics. Furthermore, since the unit apertures are now much larger than r(0) there is a need to compensate the aperture with adaptive optics (AO). Since the need for mobility of the telescopes, compact AO systems, based on Micro-Electro-Mechanical-Systems (MEMS), have been developed. This paper will present the status of our adaptive optics system and some of the results attained so far with it.
C1 [Restaino, Sergio R.; Martinez, Ty; Andrews, Jonathan R.; Wilcox, Christopher C.; Santiago, Freddie] USN, Res Lab, Remote Sensing Div, Albuquerque, NM 87117 USA.
RP Restaino, SR (reprint author), USN, Res Lab, Remote Sensing Div, Code 7216 3550 Aberdeen SE, Albuquerque, NM 87117 USA.
OI Wilcox, Christopher/0000-0001-5413-1901
NR 13
TC 0
Z9 0
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8299-0
J9 PROC SPIE
PY 2010
VL 7803
AR 78030F
DI 10.1117/12.862449
PG 9
WC Astronomy & Astrophysics; Optics; Physics, Applied
SC Astronomy & Astrophysics; Optics; Physics
GA BSU54
UT WOS:000285829000011
ER
PT B
AU Piotrowski, PL
Cannara, RJ
Gao, GT
Urban, JJ
Carpick, RW
Harrison, JA
AF Piotrowski, Pamela L.
Cannara, Rachel J.
Gao, Guangtu
Urban, Joseph J.
Carpick, Robert W.
Harrison, Judith A.
BE Kim, SH
Dugger, MT
Mittal, KL
TI Atomistic Factors Governing Adhesion between Diamond, Amorphous Carbon
and Model Diamond Nanocomposite Surfaces
SO ADHESION ASPECTS IN MEMS/NEMS
LA English
DT Article; Book Chapter
DE Adhesion; diamond; nanocomposite diamond; amorphous carbon; diamond-like
carbon; nanotribology; work of adhesion; pull-off force; atomic force
microscopy; friction force microscopy; molecular dynamics; ab initio
studies; density functional theory
ID MOLECULAR-DYNAMICS SIMULATIONS; SCANNING-TUNNELING-MICROSCOPY; FORCE
MICROSCOPY; SCALE FRICTION; ULTRANANOCRYSTALLINE DIAMOND;
TEMPERATURE-DEPENDENCE; ALKANE MONOLAYERS; CONTACT; FILMS; MEMS
AB Complementary atomic force microscopy (AFM) measurements and molecular dynamics (MD) simulations were conducted to determine the work of adhesion for diamond (C)(111)(1x1) and C(001)(2x1) surfaces paired with carbon-based materials. While the works of adhesion from experiments and simulations are in reasonable agreement, some differences were identified. Experimentally, the work of adhesion between an amorphous carbon tip and individual C(001)(2 x 1)-H and C(111)(1 x 1)-H surfaces yielded adhesion values that were larger on the C(001)(2x1)-H surface. The simulations revealed that the average adhesion between self-mated C(001)(2x1) surfaces was smaller than for self-mated C(111)(1x1) contacts. Adhesion was reduced when amorphous carbon counterfaces were paired with both types of diamond surfaces. Pairing model diamond nanocomposite surfaces with the C(111)(1x1)-H sample resulted in even larger reductions in adhesion. These results point to the importance of atomic-scale roughness for adhesion. The simulated adhesion also shows a modest dependence on hydrogen coverage. Density functional theory calculations revealed small, C-H bond dipoles on both diamond samples, with the C(001)(2 x 1)-H surface having the larger dipole, but having a smaller dipole moment per unit area. Thus, charge separation at the surface is another possible source of the difference between the measured and calculated works of adhesion.
C1 [Piotrowski, Pamela L.; Gao, Guangtu; Urban, Joseph J.; Harrison, Judith A.] US Naval Acad, Dept Chem, Annapolis, MD 21402 USA.
[Cannara, Rachel J.] NIST, Ctr Nanoscale Sci & Technol, Gaithersburg, MD 20899 USA.
[Carpick, Robert W.] Univ Penn, Dept Mech Engn & Appl Mech, Philadelphia, PA 19104 USA.
RP Harrison, JA (reprint author), US Naval Acad, Dept Chem, 572 Holloway Rd, Annapolis, MD 21402 USA.
EM jah@usna.edu
NR 71
TC 0
Z9 0
U1 1
U2 1
PU CRC PRESS-TAYLOR & FRANCIS GROUP
PI BOCA RATON
PA 6000 BROKEN SOUND PARKWAY NW, STE 300, BOCA RATON, FL 33487-2742 USA
BN 978-9-00-419095-5; 978-90-04-19094-8
PY 2010
BP 135
EP 161
PG 27
WC Engineering, Electrical & Electronic; Physics, Applied
SC Engineering; Physics
GA BC2WY
UT WOS:000351401400009
ER
PT S
AU Gordon, DF
Helle, MH
Kaganovich, D
Ting, A
AF Gordon, D. F.
Helle, M. H.
Kaganovich, D.
Ting, A.
BE Gold, SH
Nusinovich, GS
TI Electro-Optic and Terahertz Diagnostics
SO ADVANCED ACCELERATOR CONCEPTS
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 14th Workshop on Advanced Accelerator Concepts
CY JUN 13-19, 2010
CL Annapolis, MD
SP Us Dept Energy, Off High Energy Phys, Univ Maryland
DE Electro-Optic; Bunch Diagnostics; Ultrashort Pulse
ID RADIATION
AB Electron bunch diagnostics based on electro-optic sensing of terahertz electric fields are discussed, and recent experimental results are described. A self-consistent simulation model is described which incorporates electro-optic crystals into a fully relativistic, fully electromagnetic, particle-in-cell framework. The model is used to determine the field structure inside an electro-optic crystal as a relativistic electron-bunch passes nearby. The model is also used to examine a novel electro-optic sensing arrangement that utilizes time-frequency analysis to extend the useful bandwidth of the EO crystal.
C1 [Gordon, D. F.; Helle, M. H.; Kaganovich, D.; Ting, A.] USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
RP Gordon, DF (reprint author), USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
OI Kaganovich, Dmitri/0000-0002-0905-5871
NR 19
TC 2
Z9 2
U1 0
U2 0
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0853-1
J9 AIP CONF PROC
PY 2010
VL 1299
BP 67
EP 75
PG 9
WC Physics, Particles & Fields
SC Physics
GA BTK75
UT WOS:000287176200009
ER
PT S
AU Ting, A
Gordon, D
Helle, M
Kaganovich, D
Sprangle, P
Hafizi, B
AF Ting, A.
Gordon, D.
Helle, M.
Kaganovich, D.
Sprangle, P.
Hafizi, B.
BE Gold, SH
Nusinovich, GS
TI Plasma Density Tapering for Laser Wakefield Acceleration of Electrons
and Protons
SO ADVANCED ACCELERATOR CONCEPTS
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 14th Workshop on Advanced Accelerator Concepts
CY JUN 13-19, 2010
CL Annapolis, MD
SP Us Dept Energy, Off High Energy Phys, Univ Maryland
DE laser acceleration; wakefield; plasma tapering; proton acceleration;
critical density; beat wave
AB Extended acceleration in a Laser Wakefield Accelerator can be achieved by tailoring the phase velocity of the accelerating plasma wave, either through profiling of the density of the plasma or direct manipulation of the phase velocity. Laser wakefield acceleration has also reached a maturity that proton acceleration by wakefield could be entertained provided we begin with protons that are substantially relativistic, similar to 1 GeV. Several plasma density tapering schemes are discussed. The first scheme is called "bucket jumping" where the plasma density is abruptly returned to the original density after a conventional tapering to move the accelerating particles to a neighboring wakefield period (bucket). The second scheme is designed to specifically accelerate low energy protons by generating a nonlinear wakefield in a plasma region with close to critical density. The third scheme creates a periodic variation in the phase velocity by beating two intense laser beams with laser frequency difference equal to the plasma frequency. Discussions and case examples with simulations are presented where substantial acceleration of electrons or protons could be obtained.
C1 [Ting, A.; Gordon, D.; Kaganovich, D.; Sprangle, P.] USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
[Helle, M.] Georgetown Univ, Washington, DC 20057 USA.
[Hafizi, B.] Icarus Res, Bethesda, MD 20824 USA.
RP Ting, A (reprint author), USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
OI Kaganovich, Dmitri/0000-0002-0905-5871
FU Department of Energy; Naval Research Laboratory
FX Work is supported by the Department of Energy and the Naval Research
Laboratory 6.1 Program
NR 3
TC 1
Z9 1
U1 0
U2 0
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0853-1
J9 AIP CONF PROC
PY 2010
VL 1299
BP 203
EP +
PG 2
WC Physics, Particles & Fields
SC Physics
GA BTK75
UT WOS:000287176200031
ER
PT S
AU Gold, SH
Jing, C
Kanareykin, A
Gai, W
Konecny, R
Power, JG
Kinkead, AK
AF Gold, S. H.
Jing, C.
Kanareykin, A.
Gai, W.
Konecny, R.
Power, J. G.
Kinkead, A. K.
BE Gold, SH
Nusinovich, GS
TI Development of X-Band Dielectric-Loaded Accelerating Structures
SO ADVANCED ACCELERATOR CONCEPTS
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 14th Workshop on Advanced Accelerator Concepts
CY JUN 13-19, 2010
CL Annapolis, MD
SP Us Dept Energy, Off High Energy Phys, Univ Maryland
DE Dielectric-loaded accelerators
AB This paper presents a progress report on the development and testing of X-band dielectric-loaded accelerating structures. Recent tests on several quartz DLA structures with different inner diameters are reported. Designs for gap-free DLA structures are presented. Also, planned new experiments are discussed, including higher gradient traveling-wave and standing-wave structures and special grooved structures for multipactor suppression.
C1 [Gold, S. H.] USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
[Jing, C.; Kanareykin, A.] Euclid Tech Labs, Rockville, MD 20850 USA.
[Jing, C.; Gai, W.; Konecny, R.; Power, J. G.] Argonne Natl Lab, Argonne, IL 60439 USA.
[Kinkead, A. K.] Icarus Res, Bethesda, MD 20814 USA.
RP Gold, SH (reprint author), USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
FU Office of High Energy; US Office of Naval Research.
FX This work was supported by the Office of High Energy and by the US
Office of Naval Research.
NR 6
TC 0
Z9 0
U1 0
U2 1
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0853-1
J9 AIP CONF PROC
PY 2010
VL 1299
BP 292
EP +
PG 2
WC Physics, Particles & Fields
SC Physics
GA BTK75
UT WOS:000287176200046
ER
PT S
AU Kashyn, D
Nusinovich, G
Antonsen, T
Jensen, KL
AF Kashyn, Dmytro
Nusinovich, Gregory
Antonsen, Thomas, Jr.
Jensen, Kevin L.
BE Gold, SH
Nusinovich, GS
TI Field, Current and Heat Propagation inside Microprotrusions in High
Gradient Structures
SO ADVANCED ACCELERATOR CONCEPTS
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 14th Workshop on Advanced Accelerator Concepts
CY JUN 13-19, 2010
CL Annapolis, MD
SP Us Dept Energy, Off High Energy Phys, Univ Maryland
DE High-gradient accelerating structures; microprotrusions; ion bombardment
ID EMISSION
AB This paper presents two simple models describing field distribution inside a microprotrusion on the surface of the accelerating structures. After the distribution of electric field in the protrusion is determined heat propagation equation is solved to calculate temperature rise inside the protrusion. Several materials are studied and the results of heating are presented.
C1 [Kashyn, Dmytro; Nusinovich, Gregory; Antonsen, Thomas, Jr.] Univ Maryland, IREAP, College Pk, MD 20742 USA.
[Jensen, Kevin L.] Naval Res Lab, Washington, DC 20375 USA.
RP Kashyn, D (reprint author), Univ Maryland, IREAP, College Pk, MD 20742 USA.
RI Jensen, Kevin/I-1269-2015; Nusinovich, Gregory/C-1314-2017
OI Jensen, Kevin/0000-0001-8644-1680; Nusinovich,
Gregory/0000-0002-8641-5156
FU Office of High Energy Physics of the US Department of Energy
FX Thia work is supported by the Office of High Energy Physics of the US
Department of Energy.
NR 8
TC 0
Z9 0
U1 0
U2 0
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0853-1
J9 AIP CONF PROC
PY 2010
VL 1299
BP 387
EP +
PG 2
WC Physics, Particles & Fields
SC Physics
GA BTK75
UT WOS:000287176200063
ER
PT S
AU Helle, MH
Gordon, DF
Kaganovich, D
Van Keuren, E
Ting, A
AF Helle, Michael H.
Gordon, Daniel F.
Kaganovich, Dmitri
Van Keuren, Edward
Ting, Antonio
BE Gold, SH
Nusinovich, GS
TI Extending Electro-Optic Detection of Short Particle Beams Beyond the
Transverse Phonon Resonance
SO ADVANCED ACCELERATOR CONCEPTS
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 14th Workshop on Advanced Accelerator Concepts
CY JUN 13-19, 2010
CL Annapolis, MD
SP Us Dept Energy, Off High Energy Phys, Univ Maryland
DE Ultrafast optics; relativistic particle beams; electro-optic sampling;
particle beam characterization; three-wave mixing; advanced accelerator
diagnostics
ID RADIATION
AB A technique to noninvasively measure the longitudinal profile of an ultrashort charged particle beam is developed. This technique is based on three-wave mixing of the particle beam's self-fields and an optical probe in a nonlinear material. The resulting mixed field is then diagnosed by a cross-correlating frequency resolved optical gate, which provides both frequency and phase information about the generated pulse from which, in principle, the temporal profile can be reconstructed. An equation for the generated fields as well as numerical results showing the effects of a chirped probe pulse are presented.
C1 [Helle, Michael H.; Gordon, Daniel F.; Kaganovich, Dmitri; Ting, Antonio] USN, Div Plasma Phys, Res Lab, Washington, DC 20375 USA.
[Helle, Michael H.; Van Keuren, Edward] Georgetown Univ, Dept Phys, Washington, DC 20057 USA.
RP Helle, MH (reprint author), USN, Div Plasma Phys, Res Lab, Washington, DC 20375 USA.
RI Van Keuren, Edward/E-5581-2010;
OI Van Keuren, Edward/0000-0001-8348-7587; Kaganovich,
Dmitri/0000-0002-0905-5871
FU Department of Energy; Office of Naval Research
FX This work is supported by the Department of Energy and the Office of
Naval Research.
NR 11
TC 1
Z9 1
U1 0
U2 1
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0853-1
J9 AIP CONF PROC
PY 2010
VL 1299
BP 561
EP +
PG 2
WC Physics, Particles & Fields
SC Physics
GA BTK75
UT WOS:000287176200094
ER
PT S
AU Dollar, F
Matsuoka, T
McGuffey, C
Bulanov, SS
Chvykov, V
Davis, J
Kalintchenko, G
Petrov, G
Thomas, AGR
Willingale, L
Yanovsky, V
Maksimchuk, A
Krushelnick, K
AF Dollar, Franklin
Matsuoka, Takeshi
McGuffey, Christopher
Bulanov, Stepan S.
Chvykov, Vladimir
Davis, Jack
Kalintchenko, Galina
Petrov, George
Thomas, Alec G. R.
Willingale, Louise
Yanovsky, Victor
Maksimchuk, Anatoly
Krushelnick, Karl
BE Gold, SH
Nusinovich, GS
TI Narrow Energy Spread Protons and Ions from High-Intensity, High-Contrast
Laser Solid Target Interactions
SO ADVANCED ACCELERATOR CONCEPTS
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 14th Workshop on Advanced Accelerator Concepts
CY JUN 13-19, 2010
CL Annapolis, MD
SP Us Dept Energy, Off High Energy Phys, Univ Maryland
DE Laser produced plasma; ion acceleration
ID GENERATION; BEAMS
AB Recent simulations show that an idealized, high intensity, short pulse laser can generate quasi-monoenergetic proton beams with energies over 100 MeV in an interaction with a thin film [1]. However, most short pulse laser facilities with sufficient intensity have difficulty controlling the nanosecond and picosecond contrast necessary to realize such a regime. Experiments were performed to investigate proton and ion acceleration from a high contrast, short pulse laser by employing dual plasma mirrors along with a deformable mirror at the HERCULES laser facility at the Center for Ultrafast Optical Sciences, University of Michigan. Plasma mirrors were characterized, allowing a 50% throughput with an intensity contrast increase of 10(5). The focal spot quality was also exceptional, showing a 1.1 micron full width at half maximum (FWHM) focal diameter. Experiments were done using temporally cleaned 30 TW, 32 fs pulses to achieve an intensity of up to 10(21)Wcm(-2) on Si3N4 and Mylar targets with thicknesses ranging 50 nm to 13 microns. Proton beams with energy spreads below 2 MeV were observed from all thicknesses, peaking with energies up to 10.3 MeV and an energy spread of 0.8 MeV. Similar narrow energy spreads were observed for oxygen, nitrogen, and carbon at the silicon nitride thickness of 50 nm with energies up to 24 MeV with an energy spread of 3 MeV, whereas the energy spread is greatly increased at a larger thickness. Maximum energies were confirmed with CR39 track detectors, while a Thomson ion spectrometer was used to gauge the monoenergetic nature of the beam.
C1 [Dollar, Franklin; Matsuoka, Takeshi; McGuffey, Christopher; Bulanov, Stepan S.; Chvykov, Vladimir; Kalintchenko, Galina; Thomas, Alec G. R.; Willingale, Louise; Yanovsky, Victor; Maksimchuk, Anatoly; Krushelnick, Karl] Univ Michigan, Ctr Ultrafast Opt Sci, Ann Arbor, MI 48109 USA.
[Davis, Jack; Petrov, George] Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
RP Dollar, F (reprint author), Univ Michigan, Ctr Ultrafast Opt Sci, Ann Arbor, MI 48109 USA.
RI Yanovsky, Victor/B-5899-2008; Thomas, Alexander/D-8210-2011; Dollar,
Franklin/C-9214-2013; Kalinchenko, Galina/G-5684-2014;
OI Dollar, Franklin/0000-0003-3346-5763; Thomas,
Alexander/0000-0003-3206-8512
FU NSF [PHY-0114336]
FX This research was supported by NSF grant PHY-0114336.
NR 16
TC 3
Z9 3
U1 0
U2 4
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0853-1
J9 AIP CONF PROC
PY 2010
VL 1299
BP 710
EP +
PG 2
WC Physics, Particles & Fields
SC Physics
GA BTK75
UT WOS:000287176200121
ER
PT S
AU Zigler, A
Palchan, T
Bruner, N
Schleifer, E
Eisenmann, S
Henis, Z
Botton, M
Pikuz, SA
Faenov, AY
Janulewicz, KA
Gordon, D
Sprangle, P
AF Zigler, A.
Palchan, T.
Bruner, N.
Schleifer, E.
Eisenmann, S.
Henis, Z.
Botton, M.
Pikuz, S. A., Jr.
Faenov, A. Y.
Janulewicz, K. A.
Gordon, D.
Sprangle, P.
BE Gold, SH
Nusinovich, GS
TI Generation of Multi-MeV Protons by Interaction of Modest Laser
Intensities with H2O "Snow" Nano-Wire Targets
SO ADVANCED ACCELERATOR CONCEPTS
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT 14th Workshop on Advanced Accelerator Concepts
CY JUN 13-19, 2010
CL Annapolis, MD
SP Us Dept Energy, Off High Energy Phys, Univ Maryland
DE laser acceleration; proton beams; sapphire; nanoparticles; laser beams
ID PLASMAS; BEAMS
AB We report on the generation of protons with energies of 6 MeV when irradiating an H2O nano-wire layer grown on a Sapphire plate with an intensity of 3 x 10(17) W/cm(2).
C1 [Zigler, A.; Palchan, T.; Bruner, N.; Schleifer, E.; Eisenmann, S.; Henis, Z.; Botton, M.] Hebrew Univ Jerusalem, IL-91904 Jerusalem, Israel.
[Pikuz, S. A., Jr.; Faenov, A. Y.] Russian Acad Sci, Russian Federat, Joint Inst High Temp, R-125412 Moscow, Russia.
[Janulewicz, K. A.] Gwangju Inst Sci & Technol, Gwangju 500712, South Korea.
[Gordon, D.; Sprangle, P.] US Navy, Res Lab, Washington, DC 20375 USA.
RP Zigler, A (reprint author), Hebrew Univ Jerusalem, IL-91904 Jerusalem, Israel.
NR 13
TC 0
Z9 0
U1 0
U2 1
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0853-1
J9 AIP CONF PROC
PY 2010
VL 1299
BP 727
EP +
PG 3
WC Physics, Particles & Fields
SC Physics
GA BTK75
UT WOS:000287176200124
ER
PT S
AU Kolsch, M
AF Koelsch, Mathias
BE BlancTalon, J
Bone, D
Philips, W
Popescu, D
Scheunders, P
TI An Appearance-Based Prior for Hand Tracking
SO ADVANCED CONCEPTS FOR INTELLIGENT VISION SYSTEMS, PT II
SE Lecture Notes in Computer Science
LA English
DT Proceedings Paper
CT 12th International Conference on Advanced Concepts for Intelligent
Vision Systems
CY DEC 13-16, 2010
CL Sydney, AUSTRALIA
SP CSIRO, Ghent Univ, CiSRA, NICTA, Philips Res, Barco, DSP Valley, Antwerp Univ
ID OBJECT DETECTION
AB Reliable hand detection and tracking in passive 2D video still remains a challenge. Yet the consumer market for gesture-based interaction is expanding rapidly and surveillance systems that can deduce fine-grained human activities involving hand and arm postures are in high demand. In this paper, we present a hand tracking method that does not require reliable detection. We built it on top of "Flocks of Features" which combines grey-level optical flow, a "flocking" constraint, and a learned foreground color distribution. By adding probabilistic (instead of binary classified) detections based on grey-level appearance as an additional image cue, we show improved tracking performance despite rapid hand movements and posture changes. This helps overcome tracking difficulties in texture-rich and skin-colored environments, improving performance on a 10-minute collection of video clips from 75% to 86% (see examples on our website).(1)
C1 Naval Postgrad Sch, MOVES Inst, Monterey, CA 93943 USA.
RP Kolsch, M (reprint author), Naval Postgrad Sch, MOVES Inst, Monterey, CA 93943 USA.
NR 21
TC 5
Z9 5
U1 0
U2 0
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0302-9743
BN 978-3-642-17690-6
J9 LECT NOTES COMPUT SC
PY 2010
VL 6475
BP 292
EP 303
PN II
PG 12
WC Computer Science, Information Systems; Computer Science, Theory &
Methods
SC Computer Science
GA BTS09
UT WOS:000287941500027
ER
PT J
AU Huang, Z
Rolfe, E
Carson, EC
Brookhart, M
Goldman, AS
El-Khalafy, SH
MacArthur, AHR
AF Huang, Zheng
Rolfe, Eleanor
Carson, Emily C.
Brookhart, Maurice
Goldman, Alan S.
El-Khalafy, Sahar H.
MacArthur, Amy H. Roy
TI Efficient Heterogeneous Dual Catalyst Systems for Alkane Metathesis
SO ADVANCED SYNTHESIS & CATALYSIS
LA English
DT Article
DE alkane metathesis; alumina; dehydrogenation; heterogeneous catalysis;
olefin metathesis; pincer iridium
ID TRANSFER DEHYDROGENATION; OLEFIN METATHESIS; COMPLEXES
AB A fully heterogeneous and highly efficient dual catalyst system for alkane metathesis (AM) has been developed. The system is comprised of an alumina-supported iridium pincer catalyst for alkane dehydrogenation/olefin hydrogenation and a second heterogeneous olefin metathesis catalyst. The iridium catalysts bear basic functional groups on the aromatic backbone of the pincer ligand and are strongly adsorbed on Lewis acid sites on alumina. The heterogeneous systems exhibit higher lifetimes and productivities relative to the corresponding homogeneous systems as catalyst/catalyst interactions and bimolecular decomposition reactions are inhibited. Additionally using a "two-pot" device, the Supported Ir catalysts and metathesis catalysts can be physically separated and run at different temperatures. This system with isolated catalysts shows very high turnover numbers and is selective for the formation of high molecular weight alkanes.
C1 [Huang, Zheng; Rolfe, Eleanor; Carson, Emily C.; Brookhart, Maurice] Univ N Carolina, Dept Chem, Chapel Hill, NC 27599 USA.
[Goldman, Alan S.; El-Khalafy, Sahar H.] Rutgers State Univ, Dept Chem & Chem Biol, Piscataway, NJ 08854 USA.
[MacArthur, Amy H. Roy] USN Acad, Dept Chem, Annapolis, MD 21402 USA.
RP Brookhart, M (reprint author), Univ N Carolina, Dept Chem, CB 3290, Chapel Hill, NC 27599 USA.
EM mbrookhart@unc.edu; alan.goldman@rutgers.edu
RI Goldman, Alan/D-9521-2011;
OI Goldman, Alan/0000-0002-2774-710X
FU National Science Foundation
FX This work is financially supported by the National Science Foundation
under the auspices of the Center for Enabling New Technologies through
Catalysis (CENTC).
NR 24
TC 29
Z9 29
U1 4
U2 35
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA PO BOX 10 11 61, D-69451 WEINHEIM, GERMANY
SN 1615-4150
J9 ADV SYNTH CATAL
JI Adv. Synth. Catal.
PD JAN
PY 2010
VL 352
IS 1
BP 125
EP 135
DI 10.1002/adsc.200900539
PG 11
WC Chemistry, Applied; Chemistry, Organic
SC Chemistry
GA 553BL
UT WOS:000274339500011
ER
PT S
AU Wilcox, CC
Santiago, F
Martinez, T
Andrews, JR
Restaino, SR
Corley, M
Teare, SW
Agrawal, BN
AF Wilcox, Christopher C.
Santiago, Freddie
Martinez, Ty
Andrews, Jonathan R.
Restaino, Sergio R.
Corley, Melissa
Teare, Scott W.
Agrawal, Brij N.
BE Dayton, DC
Rhoadarmer, TA
Sanchez, DJ
TI A Method of Generating Atmospheric Turbulence with a Liquid Crystal
Spatial Light Modulator
SO ADVANCED WAVEFRONT CONTROL: METHODS, DEVICES, AND APPLICATIONS VIII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Advanced Wavefront Control - Methods, Devices, and
Applications VIII
CY AUG 02-05, 2010
CL San Diego, CA
SP SPIE
ID DISTORTION
AB The Naval Research Laboratory has developed a new method for generating atmospheric turbulence and a testbed that simulates its aberrations far more inexpensively and with greater fidelity using a Liquid Crystal (LC) Spatial Light Modulator (SLM) than many other methods. This system allows the simulation of atmospheric seeing conditions ranging from very poor to very good and different algorithms may be easily employed on the device for comparison. These simulations can be dynamically generated and modified very quickly and easily. In addition, many models for simulating turbulence often neglect temporal transitions along with different seeing conditions. Using the statistically independent set of Karhunen-Loeve polynomials in conjunction with Kolmogorov statistics in this model provides an accurate spatial and temporal model for simulating turbulence. An added benefit to using a LC SLM is its low cost; and multiple devices can be used to simulate multiple layers of turbulence in a laboratory environment. Current testing with using multiple LC SLMs is under investigation at the Naval Research Laboratory and the Naval Postgraduate School.
C1 [Wilcox, Christopher C.; Santiago, Freddie; Martinez, Ty; Andrews, Jonathan R.; Restaino, Sergio R.] USN, Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
RP Wilcox, CC (reprint author), USN, Res Lab, Remote Sensing Div, Code 7216, Washington, DC 20375 USA.
EM chris.wilcox@nrl.navy.mil
NR 12
TC 0
Z9 0
U1 0
U2 2
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-81948-312-6
J9 PROC SPIE
PY 2010
VL 7816
AR 78160E
DI 10.1117/12.861510
PG 9
WC Optics
SC Optics
GA BSU43
UT WOS:000285826600011
ER
PT S
AU Dorner, RW
Hardy, DR
Williams, FW
Willauer, HD
AF Dorner, Robert W.
Hardy, Dennis R.
Williams, Frederick W.
Willauer, Heather D.
BE Hu, YH
TI Catalytic CO(2) Hydrogenation to Feedstock Chemicals for Jet Fuel
Synthesis Using Multi-Walled Carbon Nanotubes as Support
SO ADVANCES IN CO2 CONVERSION AND UTILIZATION
SE ACS Symposium Series
LA English
DT Proceedings Paper
CT 238th Annual Meeting of the American-Chemical-Society
CY AUG 16-20, 2009
CL Washington, DC
SP ACS, Div Chem Educ, ACS, Div Ind & Engn Chem, ACS, Div Fuel Chem
ID FISCHER-TROPSCH SYNTHESIS; ELECTROCHEMICAL REDUCTION;
DEPOSITION-PRECIPITATION; COBALT CATALYSTS; IRON CATALYSTS;
HYDROCARBONS; NANOFIBERS; SURFACES; DIOXIDE; CELL
AB Hydrogenation of CO(2) to hydrocarbons is investigated over a K/Mn/Fe catalyst dispersed over multi-walled carbon nanotubes (MWCNT). Higher conversion yields were observed, but the catalyst favors methane formation and yields a lower olefin/paraffin ratio than an analogue catalyst dispersed on alumina reported previously. Both phenomena are ascribed to differences in the catalyst's active phase and particle size, leading to a shift in concentrations of carbonaceous surface intermediates.
C1 [Dorner, Robert W.; Hardy, Dennis R.; Williams, Frederick W.; Willauer, Heather D.] USN, Res Lab, Navy Technol Ctr Safety, Washington, DC 20375 USA.
RP Willauer, HD (reprint author), USN, Res Lab, Navy Technol Ctr Safety, Code 6180,4555 Overlook Ave SW, Washington, DC 20375 USA.
EM heather.willauer@nrl.navy.mil
NR 32
TC 3
Z9 4
U1 0
U2 4
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 SIXTEENTH ST NW, WASHINGTON, DC 20036 USA
SN 0097-6156
BN 978-0-8412-2596-1
J9 ACS SYM SER
JI ACS Symp. Ser.
PY 2010
VL 1056
BP 125
EP 139
PG 15
WC Chemistry, Physical; Engineering, Chemical
SC Chemistry; Engineering
GA BXA66
UT WOS:000295547400008
ER
PT S
AU Sellami, L
Newcomb, RW
AF Sellami, Louiza
Newcomb, Robert W.
BE Arabnia, HR
TI Multisensor Smart System on a Chip
SO ADVANCES IN COMPUTATIONAL BIOLOGY
SE Advances in Experimental Medicine and Biology
LA English
DT Article; Book Chapter
DE Fluid Biosensors; MEMS; Sensors; Smart systems; System on a chip
AB Sensors are becoming of considerable importance in several areas, particularly in health care. Therefore, the development of inexpensive and miniaturized sensors that are highly selective and sensitive, and for which control and analysis is present all on one chip is very desirable. These types of sensors can be implemented with microelectromechanical systems (MEMS), and because they are fabricated on a semiconductor substrate, additional signal processing circuitry can easily be integrated into the chip, thereby readily providing additional functions, such as multiplexing and analog-to-digital conversion. Here, we present a general framework for the design of a multisensor system on a chip, which includes intelligent signal processing, as well as a built-in self-test and parameter adjustment units. Specifically, we outline the system architecture and develop a transistorized bridge biosensor for monitoring changes in the dielectric constant of a fluid, which could be used for in-home monitoring of kidney function of patients with renal failure.
C1 [Sellami, Louiza] USN Acad, Elect & Comp Engn Dept, Annapolis, MD 21401 USA.
RP Sellami, L (reprint author), USN Acad, Elect & Comp Engn Dept, Annapolis, MD 21401 USA.
EM sellami@usna.edu
NR 8
TC 0
Z9 0
U1 0
U2 3
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0065-2598
BN 978-1-4419-5912-6
J9 ADV EXP MED BIOL
JI Adv.Exp.Med.Biol.
PY 2010
VL 680
BP 701
EP 708
DI 10.1007/978-1-4419-5913-3_78
D2 10.1007/978-1-4419-5913-3
PG 8
WC Mathematical & Computational Biology; Medicine, Research & Experimental
SC Mathematical & Computational Biology; Research & Experimental Medicine
GA BRL22
UT WOS:000283006100078
PM 20865557
ER
PT J
AU Alexandrov, AS
Di Castro, C
Mazin, I
Mihailovic, D
AF Alexandrov, Alexandre Sasha
Di Castro, Carlo
Mazin, Igor
Mihailovic, Dragan
TI Phonons and Electron Correlations in High-Temperature and Other Novel
Superconductors
SO ADVANCES IN CONDENSED MATTER PHYSICS
LA English
DT Editorial Material
C1 [Alexandrov, Alexandre Sasha] Univ Loughborough, Dept Phys, Loughborough LE11 3TU, Leics, England.
[Di Castro, Carlo] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy.
[Mazin, Igor] USN, Res Lab, Washington, DC 20375 USA.
[Mihailovic, Dragan] Jozef Stefan Inst, Dept Complex Matter, Ljubljana 1001, Slovenia.
RP Alexandrov, AS (reprint author), Univ Loughborough, Dept Phys, Loughborough LE11 3TU, Leics, England.
EM a.s.alexandrov@lboro.ac.uk
NR 0
TC 2
Z9 2
U1 0
U2 3
PU HINDAWI PUBLISHING CORPORATION
PI NEW YORK
PA 410 PARK AVENUE, 15TH FLOOR, #287 PMB, NEW YORK, NY 10022 USA
SN 1687-8108
J9 ADV COND MATTER PHYS
JI Adv. Condens. Matter Phys.
PY 2010
AR 206012
DI 10.1155/2010/206012
PG 2
WC Physics, Condensed Matter
SC Physics
GA 808YK
UT WOS:000294017700001
ER
PT S
AU Wong-Ng, W
Martin, J
Thomas, EL
Otani, M
Lowhorn, N
Green, M
Liu, G
Yan, YG
Hattrick-Simpers, J
Tran, T
AF Wong-Ng, W.
Martin, J.
Thomas, E. L.
Otani, M.
Lowhorn, N.
Green, M.
Liu, G.
Yan, Y. G.
Hattrick-Simpers, J.
Tran, T.
BE Nair, KM
Priya, S
TI RECENT DEVELOPMENTS IN THERMOELECTRIC METROLOGY AT NIST
SO ADVANCES IN ELECTROCERAMIC MATERIALS II
SE Ceramic Transactions
LA English
DT Proceedings Paper
CT Materials Science and Technology 2009 Conference and Exhibition
CY OCT 25-29, 2009
CL David L Lawrence Convention Ctr, Pittsburgh, PA
SP Amer Ceram Soc, Nucl & Env Technol Div, ASM Int
HO David L Lawrence Convention Ctr
ID COMPOSITION-SPREAD APPROACH; STANDARD REFERENCE MATERIAL; 2 CANDIDATE
MATERIALS; SKUTTERUDITES; FILMS; MERIT
AB We have recently developed several important thermoelectric metrologies at NIST. First, a low temperature (10 K to 390 K) Seebeck coefficient Standard Reference Material (SRM (TM)), Bi2Te3, which is crucial for inter-laboratory data comparison and for instrument calibration, has been produced. Second, to accelerate thermoelectric material exploration, a high-throughput thermoelectric screening system for combinatorial thin films was developed. The screening device for thermoelectric power factor (S-2 sigma, S = Seebeck coefficient, sigma = electrical conductivity) allows us to measure sigma and S of over 1000 sample-points within 6 hours. The thermal effusivity screening system using the frequency domain thermoreflectance technique allows us to determine thermal conductivity of combinatorial films, conventional films and bulk materials with high efficiency, i.e. 1000 data points within 6 hours. Third, a flexible and reliable instrument to measure high temperature Seeebeck coefficient. and resistivity is under development. This tool allows the minimization of a number of measurement uncertainties that contribute to the overall systematic errors.
C1 [Wong-Ng, W.; Martin, J.; Thomas, E. L.; Otani, M.; Lowhorn, N.; Green, M.; Liu, G.; Yan, Y. G.; Hattrick-Simpers, J.] NIST, MSEL, Gaithersburg, MD 20899 USA.
[Tran, T.] NSWC, Bethesda, MD 20817 USA.
RP Wong-Ng, W (reprint author), NIST, MSEL, Gaithersburg, MD 20899 USA.
NR 29
TC 0
Z9 0
U1 0
U2 8
PU AMER CERAMIC SOC
PI WESTERVILLE
PA 735 CERAMIC PLACE, WESTERVILLE, OH 43081-8720 USA
SN 1042-1122
BN 978-0-470-92716-8
J9 CERAM TRANS
PY 2010
VL 221
BP 253
EP +
PG 3
WC Materials Science, Ceramics
SC Materials Science
GA BTL70
UT WOS:000287221600023
ER
PT S
AU Chu, PC
Fan, C
AF Chu, P. C.
Fan, C.
BE Rahman, M
Brebbia, CA
TI Wave effect on the trajectory of a high-speed rigid body in a water
column
SO ADVANCES IN FLUID MECHANICS VIII
SE WIT Transactions on Engineering Sciences
LA English
DT Proceedings Paper
CT 8th International Conference on Advances in Fluid Mechanics
CY SEP 15-17, 2010
CL Algave, PORTUGAL
SP Wessex Inst Technol, WIT Transact Engn Sci Fluid Mech Book Series
DE body-flow interaction; 3D bomb trajectory prediction; 6-DOF model;
STRIKE35; random waves; probability density function
AB Waves form when the water surface is disturbed, for example, by wind or gravitational forces. During such disturbances energy and momentum are transferred to the water mass and sea-state is changed. For shallow water regions, the bottom topography affects the waves dramatically. Waves may cause an evident slant of the ocean surface with a large inclination angle of about 55 degrees. When a high-speed rigid body strikes the wavy ocean surface, the random ocean slope largely affects its underwater trajectory. Identification of such an effect is a key point in the prediction of a fast moving rigid body in a water column. The probability density equation (PDF) of the ocean wave slopes was used to generate the stochastic surface slope. A 6-degree of freedom (DOF) model of a fast-moving rigid body is used with the stochastic sloping surface as its water entry condition. The PDFs of the body location and orientation are obtained from results of 6-DOF model runs. From temporal change of these PDFs, the wave effect on the trajectory of a high-speed underwater rigid body has been identified.
C1 [Chu, P. C.; Fan, C.] Naval Postgrad Sch, Naval Ocean Anal & Predict Lab, Monterey, CA 93943 USA.
RP Chu, PC (reprint author), Naval Postgrad Sch, Naval Ocean Anal & Predict Lab, Monterey, CA 93943 USA.
FU Office of Naval Research [N0001410WX20165]
FX The Office of Naval Research Breaching Technology Program (Grant Number:
N0001410WX20165, Program Manager: Brian Almquist) supported this study.
The authors thank Mr. Kennard Watson from the Naval Surface Warfare
Center Panama City Division for very useful comments and helps.
NR 13
TC 0
Z9 0
U1 0
U2 0
PU WIT PRESS
PI SOUTHAMPTON
PA ASHURST LODGE, SOUTHAMPTON SO40 7AA, ASHURST, ENGLAND
SN 1746-4471
BN 978-1-84564-476-5
J9 WIT TRANS ENG SCI
PY 2010
BP 383
EP 393
DI 10.2495/AFM100331
PG 11
WC Mechanics; Physics, Fluids & Plasmas
SC Mechanics; Physics
GA BG9YF
UT WOS:000394191500033
ER
PT J
AU Birnbaum, AJ
Vikelic, S
Yao, YL
AF Birnbaum, A. J.
Vikelic, S.
Yao, Y. Lawrence
BE Lawerence, J
Pou, J
Low, DKY
Toyserkani, E
TI Advances in laser-induced plastic deformation processes
SO ADVANCES IN LASER MATERIALS PROCESSING: TECHNOLOGY, RESEARCH AND
APPLICATIONS
SE Woodhead Publishing in Mechanical Engineering
LA English
DT Article; Book Chapter
DE laser forming; laser shock peening (LSP); thermal forming; plasticity
ID VARYING THICKNESS PLATE; SLIP LINE THEORY; SHOCK-WAVES; FORMING PROCESS;
PLANE STRAIN; PART I; COMPONENTS; CRYSTALS; PROPAGATION; ANISOTROPY
AB Although myriad laser processes take advantage of the ability to convert photon energy into thermal energy resulting in a local increase in temperature, e. g. laser cutting, drilling, welding, in a sense these processes represent a direct energy conversion from laser energy to task. However, when converting laser energy to desired, controllable mechanical deformation, there exist what may be thought of as intermediate steps that arise in the process. This chapter aims to give a brief background and review recent advances for three processes: laser forming, laser shock-peening and laser peen forming. All three of these processes utilize laser energy in order to induce plastic deformation resulting in either a desired final part geometry, desirable material properties/performance or both.
C1 [Birnbaum, A. J.; Vikelic, S.; Yao, Y. Lawrence] Columbia Univ, Div Mat Sci & Technol, Naval Res Lab, New York, NY 10027 USA.
RP Birnbaum, AJ (reprint author), Columbia Univ, Div Mat Sci & Technol, Naval Res Lab, New York, NY 10027 USA.
EM andrew.birnbaum.columbia@gmail.com
NR 60
TC 0
Z9 0
U1 0
U2 1
PU WOODHEAD PUBL LTD
PI CAMBRIDGE
PA ABINGTON HALL ABINGTON, CAMBRIDGE CB1 6AH, CAMBS, ENGLAND
BN 978-1-84569-474-6
J9 WOODHEAD PUBL MECH E
PY 2010
BP 535
EP 572
DI 10.1533/9781845699819.6.535
D2 10.1533/9781845699819
PG 38
WC Engineering, Manufacturing; Materials Science, Multidisciplinary; Optics
SC Engineering; Materials Science; Optics
GA BRR90
UT WOS:000283505600019
ER
PT J
AU Shin, HH
Hong, SY
Dudhia, J
Kim, YJ
AF Shin, Hyeyum Hailey
Hong, Song-You
Dudhia, Jimy
Kim, Young-Joon
TI Orography-Induced Gravity Wave Drag Parameterization in the Global WRF:
Implementation and Sensitivity to Shortwave Radiation Schemes
SO ADVANCES IN METEOROLOGY
LA English
DT Article
AB This paper describes the implementation of the orographic gravity wave drag (GWDO) processes induced by subgrid-scale orography in the global version of the Weather Research and Forecasting (WRF) model. The sensitivity of the model simulated climatology to the representation of shortwave radiation and the addition of the GWDO processes is investigated using the Kim-Arakawa GWDO parameterization and the Goddard, RRTMG (Rapid Radiative Transfer Model for GCMs), and Dudhia shortwave radiation schemes. This sensitivity study is a part of efforts of selecting the physics package that can be useful in applying the WRF model to global and seasonal configuration. The climatology is relatively well simulated by the global WRF; the zonal mean zonal wind and temperature structures are reasonably represented with the Kim-Arakawa GWDO scheme using the Goddard and RRTMG shortwave schemes. It is found that the impact of the shortwave radiation scheme on the modeled atmosphere is pronounced in the upper atmospheric circulations above the tropopause mainly due to the ozone heating. The scheme that excludes the ozone process suffers from a distinct cold bias in the stratosphere. Moreover, given the improper thermodynamic environment conditions by the shortwave scheme, the role of the GWDO process is found to be limited.
C1 [Shin, Hyeyum Hailey; Hong, Song-You] Yonsei Univ, Dept Atmospher Sci, Seoul 120749, South Korea.
[Shin, Hyeyum Hailey; Hong, Song-You] Yonsei Univ, Global Environm Lab, Seoul 120749, South Korea.
[Dudhia, Jimy] Natl Ctr Atmospher Res, Mesoscale & Microscale Meteorol Div, Boulder, CO 80305 USA.
[Kim, Young-Joon] USN, Res Lab, Marine Meteorol Div, Monterey, CA 93943 USA.
RP Hong, SY (reprint author), Yonsei Univ, Dept Atmospher Sci, Seoul 120749, South Korea.
EM shong@yonsei.ac.kr
RI Hong, Song-You/I-3824-2012; Dudhia, Jimy/B-1287-2008
OI Dudhia, Jimy/0000-0002-2394-6232
FU National Research Foundation of Korea (NRF); Ministry of Education,
Science and Technology [2010-0000840]; Korean Foundation for
International Cooperation Science & Technology (KICOS) 21 through Korean
Ministry of Science & Technology (MOST)
FX This paper was supported by the Basic Science Research Program through
the National Research Foundation of Korea (NRF) funded by the Ministry
of Education, Science and Technology (2010-0000840), and by the Korean
Foundation for International Cooperation Science & Technology (KICOS) 21
through a grant provided by the Korean Ministry of Science & Technology
(MOST).
NR 30
TC 4
Z9 4
U1 3
U2 8
PU HINDAWI PUBLISHING CORPORATION
PI NEW YORK
PA 410 PARK AVENUE, 15TH FLOOR, #287 PMB, NEW YORK, NY 10022 USA
SN 1687-9309
J9 ADV METEOROL
JI Adv. Meteorol.
PY 2010
AR 959014
DI 10.1155/2010/959014
PG 8
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA V24IB
UT WOS:000208403000048
ER
PT J
AU Xu, Q
Wei, L
Gu, W
Gong, JD
Zhao, QY
AF Xu, Qin
Wei, Li
Gu, Wei
Gong, Jiandong
Zhao, Qingyun
TI A 3.5-Dimensional Variational Method for Doppler Radar Data Assimilation
and Its Application to Phased-Array Radar Observations
SO ADVANCES IN METEOROLOGY
LA English
DT Article
AB A 3.5-dimensional variational method is developed for Doppler radar data assimilation. In this method, incremental analyses are performed in three steps to update the model state upon the background state provided by the model prediction. First, radar radial-velocity observations from three consecutive volume scans are analyzed on the model grid. The analyzed radial-velocity fields are then used in step 2 to produce incremental analyses for the vector velocity fields at two time levels between the three volume scans. The analyzed vector velocity fields are used in step 3 to produce incremental analyses for the thermodynamic fields at the central time level accompanied by the adjustments in water vapor and hydrometeor mixing ratios based on radar reflectivity observations. The finite element B-spline representations and recursive filter are used to reduce the dimension of the analysis space and enhance the computational efficiency. The method is applied to a squall line case observed by the phased-array radar with rapid volume scans at the National Weather Radar Testbed and is shown to be effective in assimilating the phased-array radar observations and improve the prediction of the subsequent evolution of the squall line.
C1 [Xu, Qin] Natl Severe Storms Lab, Norman, OK 73072 USA.
[Wei, Li] Univ Oklahoma, Cooperat Inst Mesoscale Meteorol Studies, Norman, OK 73072 USA.
[Gu, Wei] NASA, Goddard Space Flight Ctr, Global Modeling & Assimilat Off, Sci Applicat Int Corp, Greenbelt, MD 20771 USA.
[Gong, Jiandong] China Meteorol Adm, Natl Meteorol Ctr, Beijing 100081, Peoples R China.
[Zhao, Qingyun] USN, Res Lab, Marine Meteorol Div, Monterey, CA 93943 USA.
RP Xu, Q (reprint author), Natl Severe Storms Lab, Norman, OK 73072 USA.
EM qin.xu@noaa.gov
FU NOAA HPCC program; ONR [N000140410312]; NOAA-University of Oklahoma
[NA17RJ1227]; FAA [DTFA03-01-X-9007]
FX The authors are thankful to Carl Hane, Jidong Gao, and the anonymous
reviewer for their comments and suggestions that improved the
presentation of the paper and to Douglas Forsyth, Kurt Hondl, Richard
Adams, Pengfei Zhang and Kang Nai for their help in obtaining and
processing the phased-array radar data. The research work was supported
by the NOAA HPCC program, the FAA contract IA# DTFA03-01-X-9007 to NSSL,
the ONR Grants N000140410312 to the University of Oklahoma, and the
NOAA-University of Oklahoma Cooperative Agreement no. NA17RJ1227.
NR 43
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Z9 4
U1 0
U2 0
PU HINDAWI PUBLISHING CORPORATION
PI NEW YORK
PA 410 PARK AVENUE, 15TH FLOOR, #287 PMB, NEW YORK, NY 10022 USA
SN 1687-9309
J9 ADV METEOROL
JI Adv. Meteorol.
PY 2010
AR 797265
DI 10.1155/2010/797265
PG 14
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA V24IB
UT WOS:000208403000042
ER
PT S
AU Boukhtouta, A
Berger, J
Mittu, R
Bedrouni, A
AF Boukhtouta, Abdeslem
Berger, Jean
Mittu, Ranjeev
Bedrouni, Abdellah
BE Bai, Q
Fukuta, N
TI Coordination Strategies and Techniques in Distributed Intelligent
Systems - Applications
SO ADVANCES IN PRACTICAL MULTI-AGENT SYSTEMS
SE Studies in Computational Intelligence
LA English
DT Proceedings Paper
CT 12th International Conference on Principles of Practice in Multi-Agent
Systems (PRIMA 2009)
CY DEC 14-16, 2009
CL Nagoya, JAPAN
AB This paper is devoted to describing the broad range of application domains which implement many of the coordination strategies and techniques from the field of multi-agent systems. The domains include defense, transportation, health care, telecommunication and e-business, emergency management, etc. The paper describes the diversity of the applications in which multi-agent coordination techniques have been applied to overcome the challenges or obstacles that have existed with regard to performance, interoperability and/or scalability. While the number of application domains is steadily increasing, the intent of this paper is to provide a small sampling of domains which are applying coordination techniques to build intelligent systems. This paper will also describe an emerging and important problem domain which requires the coordination among many entities across the civil-military boundary, and can benefit from multi-agent coordination techniques.
C1 [Boukhtouta, Abdeslem; Berger, Jean] Def Res & Dev Canada Valcartier, 2459 Pie 11 Blvd N, Val Belair, PQ G3J 1X5, Canada.
[Boukhtouta, Abdeslem] Concordia Univ, Concordia Inst Inform Syst Engn, Montreal, PQ H3G 1M8, Canada.
[Berger, Jean] Defence Res & Dev Canada, Quebec City G3J 1X5, PQ, Canada.
[Mittu, Ranjeev] US Navy, Res Lab, Washington, DC 20375 USA.
[Bedrouni, Abdellah] Concordia Univ, Dept Ind Engn, Montreal, PQ H3G 1M8, Canada.
RP Boukhtouta, A (reprint author), Def Res & Dev Canada Valcartier, 2459 Pie 11 Blvd N, Val Belair, PQ G3J 1X5, Canada.
EM abdeslem.boukhtouta@drdc-rddc.gc.ca; jean.berger@drdc-rddc.gc.ca;
mittu@itd.nrl.navy.mil; abedrouni@gmail.com
NR 23
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 1860-949X
BN 978-3-642-16097-4
J9 STUD COMPUT INTELL
PY 2010
VL 325
BP 73
EP +
PG 4
WC Computer Science, Artificial Intelligence; Computer Science, Theory &
Methods
SC Computer Science
GA BTR03
UT WOS:000287824600006
ER
PT S
AU Jacobs, VL
AF Jacobs, Verne L.
BE Shahriar, SM
Hemmer, PR
TI Non-linear interactions in electromagnetically induced transparency and
related pump-probe optical phenomena in moving atomic systems
SO ADVANCES IN SLOW AND FAST LIGHT III
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Advances in Slow and Fast Light III
CY JAN 25-26, 2010
CL San Francisco, CA
SP SPIE
DE Density matrix; non-linear electromagnetic interactions; coherence;
electromagnetically induced transparency
ID DENSITY-MATRIX; SLOW LIGHT; RELAXATION; RADIATION; STATES
AB Linear and non-linear interactions in electromagnetically induced transparency and related pump-probe optical phenomena involving moving many-electron atomic systems are investigated using a reduced-density-matrix approach. Time-domain (equation-of-motion) and frequency-domain (resolvent-operator) formulations are developed in a unified manner. The standard Born (lowest-order perturbation-theory) and Markov (short-memory-time) approximations are systematically introduced within the framework of the general non-perturbative and non-Markovian formulations. A preliminary semiclassical perturbation-theory treatment of the electromagnetic interaction is adopted. However, it is emphasized that a quantized-electromagnetic-field approach is essential for a self-consistent quantum-mechanical formulation. Our primary result is the derivation of compact Liouville-space operator expressions for the linear and the general (n'th order) non-linear macroscopic electromagnetic-response tensors. These expressions can be evaluated for coherent initial atomic excitations and for the full tetradic-matrix form of the Liouville-space self-energy operator representing the environmental interactions in the Markov approximation. Collisional interactions between atoms can be treated in various approximations for the self-energy operator, and the influence of Zeeman coherences on the electromagnetic-pulse propagation can be investigated by including an applied magnetic field on an equal footing with the electromagnetic fields.
C1 USN, Res Lab, Washington, DC 20375 USA.
RP Jacobs, VL (reprint author), USN, Res Lab, Washington, DC 20375 USA.
EM jacobs@dave.nrl.navy.mil
NR 20
TC 0
Z9 0
U1 1
U2 4
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8008-8
J9 PROC SPIE
PY 2010
VL 7612
AR 76120K
DI 10.1117/12.848648
PG 12
WC Engineering, Electrical & Electronic; Optics
SC Engineering; Optics
GA BSE93
UT WOS:000284309300009
ER
PT S
AU Walker, D
Steiner, M
Gulian, A
AF Walker, D.
Steiner, M.
Gulian, A.
BE Shahriar, SM
Hemmer, PR
TI Analysis of an all-optical SBS avalanche detector
SO ADVANCES IN SLOW AND FAST LIGHT III
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Advances in Slow and Fast Light III
CY JAN 25-26, 2010
CL San Francisco, CA
SP SPIE
DE Stimulated Brillouin scattering; optical fibers; detectors
ID STIMULATED BRILLOUIN-SCATTERING; RESOLVED-SIDE-BAND; DISTRIBUTED
TEMPERATURE; FIBER; OSCILLATOR; INITIATION; CAVITY
AB Seeding Brillouin scattering with a sufficiently efficient source of coherent phonons has the potential to produce energy-sensitive photon detectors. Based on this idea, we propose and analyze some possible designs for such a detector.
C1 [Walker, D.; Steiner, M.] USN, Res Lab, Washington, DC 20375 USA.
RP Walker, D (reprint author), USN, Res Lab, Code 5312, Washington, DC 20375 USA.
EM david.walker@nrl.navy.mil
NR 29
TC 0
Z9 0
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8008-8
J9 PROC SPIE
PY 2010
VL 7612
AR 761203
DI 10.1117/12.848645
PG 11
WC Engineering, Electrical & Electronic; Optics
SC Engineering; Optics
GA BSE93
UT WOS:000284309300002
ER
PT S
AU Lieberman, S
Alt, J
AF Lieberman, Stephen
Alt, Jonathan
BE Chai, SK
Salerno, JJ
Mabry, PL
TI Developing Social Networks for Artificial Societies from Survey Data
SO ADVANCES IN SOCIAL COMPUTING, PROCEEDINGS
SE Lecture Notes in Computer Science
LA English
DT Proceedings Paper
CT 3rd International Workshop on Social Computing, Behavioral Modeling and
Prediction
CY MAR 30-31, 2010
CL Bethesda, MD
DE Artificial Societies; Social Network Analysis; Social Computing
ID EVOLUTION; BEHAVIOR
AB Authentically representing large social collectivities remains a preeminent challenge throughout the social computing, and modeling and simulation communities. We demonstrate here a simple technique that uses survey and polling data to embed agents with attributes and endogenously elicit an authentic and theory-driven simulation social structure for an artificial society. We furthermore show that a representation of social structure based on internal agent attributes allows for the continuous representation of social dynamics that affect agent cognition and association, and that social structures for artificial societies can be generated without any loss to the granularity of the underlying data or simulation output. We provide a case study using social survey data to demonstrate the method and effects, document the visualization of social structure for the population of Indonesia, discuss the implications and uses of survey data for social simulation, and suggest several paths forward for social and behavioral predictive modeling.
C1 [Lieberman, Stephen; Alt, Jonathan] USN, Postgrad Sch, Modeling Virtual Environm & Simulat MOVES Inst, Monterey, CA 93943 USA.
RP Lieberman, S (reprint author), USN, Postgrad Sch, Modeling Virtual Environm & Simulat MOVES Inst, Monterey, CA 93943 USA.
EM stlieber@nps.edu
NR 21
TC 1
Z9 1
U1 0
U2 1
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0302-9743
BN 978-3-642-12078-7
J9 LECT NOTES COMPUT SC
PY 2010
VL 6007
BP 159
EP 168
PG 10
WC Computer Science, Information Systems; Computer Science, Software
Engineering; Computer Science, Theory & Methods
SC Computer Science
GA BPW01
UT WOS:000280121900019
ER
PT S
AU Alt, JK
Lieberman, S
AF Alt, Jonathan K.
Lieberman, Stephen
BE Chai, SK
Salerno, JJ
Mabry, PL
TI Developing Cognitive Models for Social Simulation from Survey Data
SO ADVANCES IN SOCIAL COMPUTING, PROCEEDINGS
SE Lecture Notes in Computer Science
LA English
DT Proceedings Paper
CT 3rd International Workshop on Social Computing, Behavioral Modeling and
Prediction
CY MAR 30-31, 2010
CL Bethesda, MD
DE Social simulation; cognitive models; agents
ID BEHAVIOR
AB The representation of human behavior and cognition continues to challenge the modeling and simulation community. The use of survey and polling instruments to inform belief states, issue stances and action choice models provides a compelling means of developing models and simulations with empirical data. Using these types of data to population social simulations can greatly enhance the feasibility of validation efforts, the reusability of social and behavioral modeling frameworks, and the testable reliability of simulations. We provide a case study demonstrating these effects, document the use of survey data to develop cognitive models, and suggest future paths forward for social and behavioral modeling.
C1 [Alt, Jonathan K.; Lieberman, Stephen] USN, Modeling Virtual Environm & Simulat MOVES Inst, Postgrad Sch, Monterey, CA 93943 USA.
RP Alt, JK (reprint author), USN, Modeling Virtual Environm & Simulat MOVES Inst, Postgrad Sch, Monterey, CA 93943 USA.
NR 16
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0302-9743
BN 978-3-642-12078-7
J9 LECT NOTES COMPUT SC
PY 2010
VL 6007
BP 323
EP 329
PG 7
WC Computer Science, Information Systems; Computer Science, Software
Engineering; Computer Science, Theory & Methods
SC Computer Science
GA BPW01
UT WOS:000280121900038
ER
PT S
AU Chen, W
AF Chen, Wei
BE Bebis, G
Boyle, R
Parvin, B
Koracin, D
Chung, R
Hammound, R
Hussain, M
Han, TK
Crawfis, R
Thalmann, D
Kao, D
Avila, L
TI Conservative Motion Estimation from Multi-image Sequences
SO ADVANCES IN VISUAL COMPUTING, PT I
SE Lecture Notes in Computer Science
LA English
DT Proceedings Paper
CT 6th International Symposium on Visual Computing
CY NOV 29-DEC 01, 2010
CL Las Vegas, NV
SP UNR, DRI, LBNL, NASA Ames, Air Force Res Lab, Intel, DigitalPersona, Equinox, Ford, Hewlett Packard, Mitsubishi Elect Res Lab, iCore, Toyota, Delphi, Gen Elect, Microsoft MSDN, Volt
ID OPTICAL-FLOW; COMPUTATION; FIELDS
AB Motion estimation in image sequences is a fundamental problem for digital video coding. In this paper, we present a new approach for conservative motion estimation from multi-image sequences. We deal with a system in which most of the motions in the scene are conservative or near-conservative in a certain temporal interval with multi-image sequences. Then a single conservative velocity field in this temporal range can across several successive frames. This system can be proved to be fully constrained or over-constrained when the number of frames is greater than two. A framework with displaced frame difference (DFD) equations, spatial velocity modeling, a nonlinear least-squares model, and Gauss-Newton and Levenberg-Marguardt algorithms for solving the nonlinear system is developed. The proposed algorithm is evaluated experimentally with two standard test image sequences. All successive frames except the last one (used for reference frame) in this conservative system can be synthesized by the motion-compensated prediction and interpolation based on the estimated motion field. This framework can estimate large scale motion field that across more than two successive frames if most of the motions in the scene in the temporal interval are conservative or near-conservative and has better performance than the block matching algorithm.
C1 USN, Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
RP Chen, W (reprint author), USN, Res Lab, Remote Sensing Div, Code 7233,4555 Overlook Ave SW, Washington, DC 20375 USA.
NR 19
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0302-9743
BN 978-3-642-17288-5
J9 LECT NOTES COMPUT SC
PY 2010
VL 6453
BP 427
EP 436
PG 10
WC Computer Science, Artificial Intelligence; Computer Science, Theory &
Methods
SC Computer Science
GA BUW97
UT WOS:000290548000041
ER
PT B
AU Sheppard, FR
Robson, MC
AF Sheppard, Forest R.
Robson, Martin C.
BE Sen, CK
TI History of Bacteriology of War Wounds
SO ADVANCES IN WOUND CARE, VOL 1: TRANSLATIONAL MEDICINE: FROM BENCHTOP TO
BEDSIDE TO COMMUNITY AND BACK
SE Advances in Wound Care
LA English
DT Article; Book Chapter
ID COMBAT CASUALTY CARE; PENICILLIN; INFECTIONS; PROGRESS; FLORA
AB War wounds are, as all traumatic wounds, uniformly contaminated and the contaminating organisms can be of various species. The change of the predominating species over the various armed conflicts can be due to several factors such as medical knowledge and practice of the era, munitions used, climate where and season when injury occurred, time from battlefield to medical care, initial treatment and resuscitation regimens, and antibacterial measures. The history of war wound microbiology is extensive; it is the authors' goal to present a concise treatise acknowledging these factors that may serve as both a general reference and a starting point for more in-depth study by the reader.
C1 [Sheppard, Forest R.] USN, Med Res Ctr, Regenerat Med Dept, CCCD, Silver Spring, MD 20910 USA.
[Sheppard, Forest R.] Natl Naval Med Ctr, Dept Surg, Bethesda, MD USA.
[Sheppard, Forest R.] Uniformed Serv Univ Hlth Sci, Dept Surg, Bethesda, MD 20814 USA.
[Robson, Martin C.] Univ S Florida, Tampa, FL USA.
RP Sheppard, FR (reprint author), USN, Med Res Ctr, Regenerat Med Dept, CCCD, 503 Robert Grant Ave, Silver Spring, MD 20910 USA.
EM forest.sheppard@med.navy.mil
NR 27
TC 0
Z9 0
U1 0
U2 0
PU MARY ANN LIEBERT INC
PI LARCHMONT
PA 2 MADISON AVENUE, LARCHMONT, NY 10538 USA
BN 978-1-934854-01-3
J9 ADV WOUND CARE
PY 2010
VL 1
BP 8
EP 12
DI 10.1089/awc.2009.0062
PG 5
WC Medicine, General & Internal
SC General & Internal Medicine
GA BOV75
UT WOS:000277780600003
ER
PT B
AU Petersen, K
Hospenthal, D
Wortmann, G
AF Petersen, Kyle
Hospenthal, Duane
Wortmann, Glenn
BE Sen, CK
TI Update on Bioburden Control and Treatment of War Wound Infections
SO ADVANCES IN WOUND CARE, VOL 1: TRANSLATIONAL MEDICINE: FROM BENCHTOP TO
BEDSIDE TO COMMUNITY AND BACK
SE Advances in Wound Care
LA English
DT Article; Book Chapter
ID TOPICAL ANTIMICROBIAL AGENTS; DIABETIC FOOT ULCERS; NEGATIVE-PRESSURE;
IN-VITRO; THERAPY; INJURIES; TRIAL; COMPLICATIONS; IRRIGATION;
MANAGEMENT
AB Background: Combat injury related wounds are generally acute, and occur in young, otherwise healthy adults. The most significant sequelae of wound bioburden, sepsis, which previously affected 90% of casualties in the pre-antibiotic era, continues to occur in 5-10%, causing considerable morbidity and some mortality. Controlling or eradicating bioburden before the critical colonization stage of 105 colony forming unit/g or more than four bacterial species might decrease infectious sequelae.
The Problem: Modern combat wounds are complex, usually blast-related injuries, with extensive soft tissue damage, which is often complicated by vascular impairment and underlying bone injury. Persons developing infection may be critically ill, have received multiple transfusions, and suffer multi-organ impairment. With modern debridement and posttrauma antibiotic use, combat wound pathogens have changed from Clostridia and Streptococcus to multidrug-resistant nosocomial pathogens such as Staphylococcus aureus, Pseudomonas aeruginosa, and Acinetobacter baumannii. New modalities that prevent the selection of drug-resistant bacteria, and prevent wound-related sepsis and death are needed.
Basic/Clinical Science Advances: in 2008 numerous approaches to bioburden reduction were published. Several having potential for combat wound care include novel diagnostics, dressings, negative pressure devices, topical solutions, antimicrobial peptides, and innovative approaches to surgical care.
Clinical Care Relevance: Application of some of these aforementioned novel approaches might reduce multidrug-resistant bacterial colonization and wound infection, but more study is required.
Conclusion: Limited studies were done on combat-related bioburden reduction in 2008. Work focused on chronic wound infections may have potential crossover utility in combat wounds; however, more studies are needed in this unique population.
C1 [Petersen, Kyle] USN, Med Res Ctr, Undersea Med Div, Silver Spring, MD 20910 USA.
[Hospenthal, Duane] San Antonio Mil Med Ctr, Infect Dis Serv, Ft Sam Houston, TX USA.
[Wortmann, Glenn] Walter Reed Army Med Ctr, Infect Dis Serv, Washington, DC 20307 USA.
RP Petersen, K (reprint author), USN, Med Res Ctr, Undersea Med Div, 503 Robert Grant Ave, Silver Spring, MD 20910 USA.
EM kyle.petersen@med.navy.mil
NR 34
TC 0
Z9 0
U1 1
U2 2
PU MARY ANN LIEBERT INC
PI LARCHMONT
PA 2 MADISON AVENUE, LARCHMONT, NY 10538 USA
BN 978-1-934854-01-3
J9 ADV WOUND CARE
PY 2010
VL 1
BP 24
EP 30
DI 10.1089/awc.2009.0058
PG 7
WC Medicine, General & Internal
SC General & Internal Medicine
GA BOV75
UT WOS:000277780600006
ER
PT J
AU Ramamurti, R
Geder, J
Palmisano, J
Ratna, B
Sandberg, WC
AF Ramamurti, Ravi
Geder, Jason
Palmisano, John
Ratna, Banahalli
Sandberg, William C.
TI Computations of Flapping Flow Propulsion for Unmanned Underwater Vehicle
Design
SO AIAA JOURNAL
LA English
DT Article; Proceedings Paper
CT AIAA 47th Aerospace Sciences Meeting and Exhibit
CY JAN 05-08, 2009
CL Orlando, FL
SP Amer Inst Aeronaut & Astronaut
ID AQUATIC FLIGHT; BIRD WRASSE
AB Three-dimensional unsteady computations of the flow past a flapping and deforming fin are performed. The computed unsteady lift and thrust force-time histories are validated with experimental data and are in good agreement. Several fin parametric studies are performed for a notional unmanned underwater vehicle. The parametric studies investigated the force production of the fin as a function of varying the flexibility, the bulk amplitude of fin rotation, the vehicle speed, and the fin stroke bias angle. The results of these simulations are used to evaluate the hydrodynamic performance of the vehicle and to support controller development. Computations are also performed to map out the hydrodynamic characteristics of a new test vehicle, designed and built at Naval Research Laboratory to demonstrate the hovering and low-speed maneuvering performance of a set of actively controlled curvature fins.
C1 [Ramamurti, Ravi; Geder, Jason] USN, Res Lab, Computat Phys & Fluid Dynam Lab, Washington, DC 20375 USA.
[Palmisano, John; Ratna, Banahalli] USN, Res Lab, Ctr Biomol Sci & Engn, Washington, DC 20375 USA.
[Sandberg, William C.] Sci Applicat Int Corp, Anal & Modeling Div, Mclean, VA 22102 USA.
RP Ramamurti, R (reprint author), USN, Res Lab, Computat Phys & Fluid Dynam Lab, Washington, DC 20375 USA.
EM ravi@lcp.nrl.navy.mil; jgeder@lcp.nrl.navy.mil; palmisano@gmail.com;
banahalli.ratna@nrl.navy.mil; william.c.sandberg@saic.com
NR 22
TC 2
Z9 4
U1 0
U2 6
PU AMER INST AERONAUT ASTRONAUT
PI RESTON
PA 1801 ALEXANDER BELL DRIVE, STE 500, RESTON, VA 22091-4344 USA
SN 0001-1452
J9 AIAA J
JI AIAA J.
PD JAN
PY 2010
VL 48
IS 1
BP 188
EP 201
DI 10.2514/1.43389
PG 14
WC Engineering, Aerospace
SC Engineering
GA 541YU
UT WOS:000273458600017
ER
PT S
AU von Berg, DL
Anderson, SA
Bird, A
Holt, N
Kruer, M
Walls, TJ
Wilson, ML
AF von Berg, Dale Linne
Anderson, Scott A.
Bird, Alan
Holt, Niel
Kruer, Melvin
Walls, Thomas J.
Wilson, Michael L.
BE Henry, DJ
TI Multi-Sensor Airborne Imagery Collection and Processing Onboard Small
Unmanned Systems
SO AIRBORNE INTELLIGENCE, SURVEILLANCE, RECONNAISSANCE (ISR) SYSTEMS AND
APPLICATIONS VII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Airborne Intelligence, Surveillance, Reconnaissance (ISR)
Systems and Applications VII
CY APR 07-08, 2010
CL Orlando, FL
SP SPIE
DE FEATHAR; EyePod; NuSAR; NITF; geo-aware; geo-rectified; geo-registered;
UAV; UAS
AB FEATHAR (Fusion, Exploitation, Algorithms, and Targeting for High-Altitude Reconnaissance) is an ONR funded effort to develop and test new tactical sensor systems specifically designed for small manned and unmanned platforms (payload weight < 50 lbs). This program is being directed and executed by the Naval Research Laboratory (NRL) in conjunction with the Space Dynamics Laboratory (SDL). FEATHAR has developed and integrated EyePod, a combined long-wave infrared (LWIR) and visible to near infrared (VNIR) optical survey & inspection system, with NuSAR, a combined dual band synthetic aperture radar (SAR) system. These sensors are being tested in conjunction with other ground and airborne sensor systems to demonstrate intelligent real-time cross-sensor cueing and in-air data fusion. Results from test flights of the EyePod and NuSAR sensors will be presented.
C1 [von Berg, Dale Linne; Kruer, Melvin; Walls, Thomas J.; Wilson, Michael L.] USN, Res Lab, Washington, DC 20375 USA.
RP von Berg, DL (reprint author), USN, Res Lab, Washington, DC 20375 USA.
NR 5
TC 1
Z9 1
U1 0
U2 2
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8132-0
J9 PROC SPIE
PY 2010
VL 7668
AR 766807
DI 10.1117/12.850775
PG 11
WC Remote Sensing; Optics; Imaging Science & Photographic Technology
SC Remote Sensing; Optics; Imaging Science & Photographic Technology
GA BSS38
UT WOS:000285628000006
ER
PT S
AU Chung, TH
AF Chung, Timothy H.
BE Chirikjian, GS
Choset, H
Morales, M
Murphey, T
TI On Probabilistic Search Decisions under Searcher Motion Constraints
SO ALGORITHMIC FOUNDATIONS OF ROBOTICS VIII
SE Springer Tracts in Advanced Robotics
LA English
DT Proceedings Paper
CT 8th International Workshop on the Algorithmic Foundations of Robotics
CY DEC 07-09, 2008
CL Guanajuato, MEXICO
ID MOVING-TARGET; PURSUIT-EVASION; PATH; GRAPHS
AB This article presents a sequential decision-theoretic formulation for conducting probabilistic search for a stationary target in a search region. A general recursion expression describing the evolution of the search decision (i.e., presence or absence of the target) is derived, which relates the temporal sequence of imperfect detections, both false positives and false negatives, to the spatial search conducted by a search agent. This relationship enables quantification of the decision performance - time till decision - for a given search strategy. Also, the role of searcher motion constraints, represented by a search graph, on the time till decision is characterized by the second smallest eigenvalue of the Laplacian of this graph. Numerical studies demonstrate this relationship.
C1 USN, Postgrad Sch, Dept Operat Res, Monterey, CA 93943 USA.
RP Chung, TH (reprint author), USN, Postgrad Sch, Dept Operat Res, Monterey, CA 93943 USA.
EM thchung@nps.edu
NR 27
TC 2
Z9 2
U1 1
U2 1
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 1610-7438
BN 978-3-642-00311-0
J9 SPR TRA ADV ROBOT
PY 2010
VL 57
BP 501
EP 516
PG 16
WC Robotics
SC Robotics
GA BRV54
UT WOS:000283747900031
ER
PT S
AU Bachmann, CM
Ainsworth, TL
Fusina, RA
AF Bachmann, Charles M.
Ainsworth, Thomas L.
Fusina, Robert A.
BE Shen, SS
Lewis, PE
TI A Scalable Approach to Modeling Nonlinear Structure in Hyperspectral
Imagery and Other High-Dimensional Data Using Manifold Coordinate
Representations
SO ALGORITHMS AND TECHNOLOGIES FOR MULTISPECTRAL, HYPERSPECTRAL, AND
ULTRASPECTRAL IMAGERY XVI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Algorithms and Technologies for Multispectral,
Hyperspectral, and Ultraspectral Imagery XVI
CY APR 05-08, 2010
CL Orlando, FL
SP SPIE
DE manifold coordinates; manifold learning; hyperspectral imagery;
neighborhood; local intrinsic dimensionality; nonlinear; anomaly finding
AB In the past we have presented a framework for deriving a set of intrinsic manifold coordinates that directly parameterize high-dimensional data, such as that found in hyperspectral imagery(1234567).(10) In these previous works, we have described the potential utility of these representations for such diverse problems as land-cover mapping and in-water retrievals such as bathymetry.(10) Because the manifold coordinates are intrinsic, they offer the potential for significant compression of the data, and are furthermore very useful for displaying data structure that can not be seen by linear image processing representations when the data is inherently nonlinear. This is especially true, for example, when the data are known to contain strong nonlinearities, such as in the reflectance data obtained from hyperspectral imaging sensors over the water, where the medium itself is attenuating(235).(7) These representations are also potentially useful in such applications as anomaly finding(2).(3) A number of other researchers have looked at different aspects of the manifold coordinate representations such as the best way to exploit these representations through the backend classifier,(15) while others have examined alternative manifold coordinate models.(14) In this paper, we provide an overview of our scalable algorithm for deriving manifold coordinate representations of high-dimensional data such as hyperspectral imagery, describe some of our recent work to improve the local estimation of spectral neighborhood size, and demonstrate the benefits for problems such as anomaly finding.
C1 [Bachmann, Charles M.; Fusina, Robert A.] USN, Res Lab, Remote Sensing Div,Coastal Sci & Interpretat Sect, Coastal & Ocean Remote Sensing Branch, Washington, DC 20375 USA.
RP Bachmann, CM (reprint author), USN, Res Lab, Remote Sensing Div,Coastal Sci & Interpretat Sect, Coastal & Ocean Remote Sensing Branch, Code 7232,4555 Overlook Ave SW, Washington, DC 20375 USA.
EM bachmann@nrl.navy.mil
NR 21
TC 0
Z9 0
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8159-7
J9 PROC SPIE
PY 2010
VL 7695
AR 76950C
DI 10.1117/12.852242
PG 7
WC Optics; Imaging Science & Photographic Technology
SC Optics; Imaging Science & Photographic Technology
GA BSS80
UT WOS:000285716700011
ER
PT S
AU Daniel, BJ
Schaum, AP
AF Daniel, Brian J.
Schaum, Alan P.
BE Shen, SS
Lewis, PE
TI Urchin: An RX-derivative accounting for anisotropies in whitened clutter
SO ALGORITHMS AND TECHNOLOGIES FOR MULTISPECTRAL, HYPERSPECTRAL, AND
ULTRASPECTRAL IMAGERY XVI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Algorithms and Technologies for Multispectral,
Hyperspectral, and Ultraspectral Imagery XVI
CY APR 05-08, 2010
CL Orlando, FL
SP SPIE
DE Anomaly detection; hyperspectral imagery; RX algorithm; target detection
AB The most widespread methods of anomaly detection in hyperspectral imagery (HSI) are the RX algorithm and its variants (e.g. Subspace RX). RX is optimal for any unimodal elliptically contoured distribution (ECD), and in certain data sets, it misinterprets any deviations from this model as true anomalies. Singleton outliers are by definition anomalous, but other RX detections can arise from less severe departures from the ECD, in the form of spectral "prominences." We describe a method that mitigates such persistent false alarms by augmenting RX in a recursive process with truncated versions of the Adaptive Cosine Estimator (ACE). ACE is applied to RX exceedances that arise from prominences, bulges appearing in the whitened clutter distribution that indicate anisotropy. The ACE-augmented RX decision surface resembles a sea urchin.
C1 [Daniel, Brian J.; Schaum, Alan P.] USN, Res Lab, Washington, DC 20375 USA.
RP Daniel, BJ (reprint author), USN, Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA.
NR 6
TC 3
Z9 3
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8159-7
J9 PROC SPIE
PY 2010
VL 7695
AR 769504
DI 10.1117/12.850222
PG 6
WC Optics; Imaging Science & Photographic Technology
SC Optics; Imaging Science & Photographic Technology
GA BSS80
UT WOS:000285716700003
ER
PT S
AU Gillis, D
Ientilucci, E
Bowles, J
AF Gillis, David
Ientilucci, Emmett
Bowles, Jeffrey
BE Shen, SS
Lewis, PE
TI Results of GLMM-Based Target Detection on the RIT Data Set
SO ALGORITHMS AND TECHNOLOGIES FOR MULTISPECTRAL, HYPERSPECTRAL, AND
ULTRASPECTRAL IMAGERY XVI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Algorithms and Technologies for Multispectral,
Hyperspectral, and Ultraspectral Imagery XVI
CY APR 05-08, 2010
CL Orlando, FL
SP SPIE
DE Hyperspectral; Linear Mixing; Target Detection; Target Spaces
AB The authors have recently introduced the Generalized Linear Mixing Model (GLMM), which extends the traditional Linear Mixing Model by generalizing the concept of an endmember vector to an endmember subspace. This generalization allows us to model the spectral variability that is present in a given class. The model also naturally includes the use of 'target spaces', which have been previously developed to model the variability of at-sensor radiance for a given library spectrum due to atmospheric and illumination uncertainty.
In this paper, we apply the GLMM / target space approach to detecting targets in the recently released RIT test data set. In particular, we give a brief description of the underlying model, and then present our results of applying this model to the RIT data set.
C1 [Gillis, David; Bowles, Jeffrey] USN, Res Lab, Washington, DC 20375 USA.
RP Gillis, D (reprint author), USN, Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM David.Gillis@nrl.navy.mil
NR 6
TC 0
Z9 0
U1 0
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8159-7
J9 PROC SPIE
PY 2010
VL 7695
AR 769523
DI 10.1117/12.850242
PG 11
WC Optics; Imaging Science & Photographic Technology
SC Optics; Imaging Science & Photographic Technology
GA BSS80
UT WOS:000285716700073
ER
PT S
AU Kruse, FA
Olsen, RC
AF Kruse, F. A.
Olsen, R. C.
BE Shen, SS
Lewis, PE
TI Variability Analysis and Change Characterization of HSI Data for Urban
Mapping
SO ALGORITHMS AND TECHNOLOGIES FOR MULTISPECTRAL, HYPERSPECTRAL, AND
ULTRASPECTRAL IMAGERY XVI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Algorithms and Technologies for Multispectral,
Hyperspectral, and Ultraspectral Imagery XVI
CY APR 05-08, 2010
CL Orlando, FL
SP SPIE
DE Imaging Spectrometry; Hyperspectral Imaging (HSI); Spectral Variability;
Change Detection; Urban Mapping
ID AVIRIS DATA; SPECTROSCOPY; MINERALS
AB Urban areas are highly variable in remote sensing data, thus it can be difficult to detect changes over time caused by development or by movement of specific targets. This research is a first attempt at exploration of repeat flights of 20m spatial resolution imaging spectrometer data to identify and characterize sources and the nature of spectral variability in urban/rural environments. Data for two dates were atmospherically corrected using a MODTRAN-based model to independently correct each dataset for atmospheric effects. The data were geocorrected and co-registered then cropped to a common spatial coverage. Spectra for individual pixels and for ROIs were extracted from the two datasets and visual and statistical comparisons were made between spectra to assess the effects of collection parameters and atmospheric corrections. Spectral endmembers were determined for each flightline, mapped using spectral matching methods, and compared across flightlines. This approach allowed determination of relatively spectrally invariant areas versus areas with significant spectral change. The combined datasets were used to develop thematic layers and evaluate spectral variability versus changes principally due to urban development.
C1 [Kruse, F. A.; Olsen, R. C.] USN, Postgrad Sch, Monterey, CA 93943 USA.
RP Kruse, FA (reprint author), USN, Postgrad Sch, 1 Univ Circle, Monterey, CA 93943 USA.
RI Olsen, Richard/O-2699-2015
OI Olsen, Richard/0000-0002-8344-9297
NR 23
TC 1
Z9 1
U1 0
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8159-7
J9 PROC SPIE
PY 2010
VL 7695
AR 76951K
DI 10.1117/12.850117
PG 11
WC Optics; Imaging Science & Photographic Technology
SC Optics; Imaging Science & Photographic Technology
GA BSS80
UT WOS:000285716700054
ER
PT S
AU Olson, CC
Nichols, JM
Michalowicz, JV
Bucholtz, F
AF Olson, C. C.
Nichols, J. M.
Michalowicz, J. V.
Bucholtz, F.
BE Shen, SS
Lewis, PE
TI Improved outlier identification in hyperspectral imaging via nonlinear
dimensionality reduction
SO ALGORITHMS AND TECHNOLOGIES FOR MULTISPECTRAL, HYPERSPECTRAL, AND
ULTRASPECTRAL IMAGERY XVI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Algorithms and Technologies for Multispectral,
Hyperspectral, and Ultraspectral Imagery XVI
CY APR 05-08, 2010
CL Orlando, FL
SP SPIE
DE Hyperspectral Imaging; Nonlinear Dimensionality Reduction; Manifold
Learning; Anomaly Detection; Unsupervised Learning; Target Detection
ID DIFFUSION MAPS; IMAGERY
AB We use a nonlinear dimensionality reduction technique to improve anomaly detection in a hyperspectral imaging application. A nonlinear transformation, diffusion map, is used to map pixels from the high-dimensional spectral space to a (possibly) lower-dimensional manifold. The transformation is designed to retain a measure of distance between the selected pixels. This lower-dimensional manifold represents the background of the scene with high probability and selecting a subset of points reduces the computational overhead associated with diffusion map. The remaining pixels are mapped to the manifold by means of a Nystrom extension. A distance measure is computed for each new pixel and those that do not reside near the background manifold, as determined by a threshold, are identified as anomalous. We compare our results with the RX and subspace RX methods of anomaly detection.
C1 [Olson, C. C.; Nichols, J. M.; Michalowicz, J. V.; Bucholtz, F.] USN, Res Lab, Div Opt Sci, Washington, DC 20375 USA.
RP Olson, CC (reprint author), USN, Res Lab, Div Opt Sci, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM colin.olson.ctr@nrl.navy.mil
NR 8
TC 0
Z9 0
U1 0
U2 4
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8159-7
J9 PROC SPIE
PY 2010
VL 7695
AR 769507
DI 10.1117/12.851811
PG 5
WC Optics; Imaging Science & Photographic Technology
SC Optics; Imaging Science & Photographic Technology
GA BSS80
UT WOS:000285716700006
ER
PT S
AU Schaum, A
AF Schaum, A.
BE Shen, SS
Lewis, PE
TI Continuum Fusion: a new methodology for creating hyperspectral detection
algorithms
SO ALGORITHMS AND TECHNOLOGIES FOR MULTISPECTRAL, HYPERSPECTRAL, AND
ULTRASPECTRAL IMAGERY XVI
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Algorithms and Technologies for Multispectral,
Hyperspectral, and Ultraspectral Imagery XVI
CY APR 05-08, 2010
CL Orlando, FL
SP SPIE
DE hyperspectral; fusion; detection; affine; subspace
AB A new formalism has been developed for producing detection algorithms in model-based problems, in which one or more parameter values is unknown. Continuum fusion can be used to generate different flavors of algorithm for any composite hypothesis testing problem. The method is defined by a fusion logic that can be translated into a set of partial differential relations. However, some important hyperspectral models can be solved with purely geometrical means, one of which is described. The new methodology affords a new interpretation of the orthodox solution, the generalized likelihood ratio test, which is revealed as but one point in a spectrum of fusion methods.
C1 USN, Res Lab, Washington, DC 20375 USA.
RP Schaum, A (reprint author), USN, Res Lab, 4555 Overlook Dr, Washington, DC 20375 USA.
NR 5
TC 5
Z9 5
U1 0
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8159-7
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7695
AR 769502
DI 10.1117/12.849475
PG 5
WC Optics; Imaging Science & Photographic Technology
SC Optics; Imaging Science & Photographic Technology
GA BSS80
UT WOS:000285716700001
ER
PT J
AU Cheatham, WW
AF Cheatham, Wayman Wendell
TI Peroxisome proliferator-activated receptor translational research and
clinical experience
SO AMERICAN JOURNAL OF CLINICAL NUTRITION
LA English
DT Article; Proceedings Paper
CT Experimental Biology 2009 Annual Meeting
CY APR 21, 2009
CL New Orleans, LA
ID TYPE-2 DIABETES-MELLITUS; BETA-CELL DYSFUNCTION; INSULIN-RESISTANCE;
ADIPOSE-TISSUE; MYOCARDIAL-INFARCTION; HYPOGLYCEMIC AGENT;
GLUCOSE-TOLERANCE; FAILURE; ROSIGLITAZONE; DYSLIPIDEMIA
AB Since the early 1970s, pharmaceutical biochemists have sought to exploit the scientific findings that were uncovered when they studied the basis for the function and mode of action of fibric acid derivatives. In the early 1970s, little was known of peroxisome proliferator-activated receptors (PPARs), even in concept. Since then, however, the development of bioactive small molecules in medicinal science has resulted in tools developed to be inserted into the PPAR-binding domain, which has resulted in the recognition of literally thousands of possible biological effects of binding configurations. In diabetes care, the first of the marketed agents from these discoveries and developments was introduced in 1996. It was potent and did its job well. However, the use of this early form of thiazolidinedione sometimes, although rarely, led to fulminant liver failure, and ultimately the drug was removed from the market. Subsequent thiazolidinediones have been developed, and 2 have been relatively successful. However, they are not without their problems. This article describes the history of the development of these drugs, identifies the valuable attributes that they possess, and gives a clear rationale as to why a quest for a "safer" PPAR agonist is still being sought. Am J Clin Nutr 2010;91(suppl):262S-6S.
C1 [Cheatham, Wayman Wendell] USN, Bur Med & Surg, Washington, DC USA.
RP Cheatham, WW (reprint author), 6218 Black Cherry Circle, Columbia, MD 21045 USA.
EM wayman.cheatham@med.navy.mil
NR 51
TC 25
Z9 25
U1 0
U2 0
PU AMER SOC CLINICAL NUTRITION
PI BETHESDA
PA 9650 ROCKVILLE PIKE, SUBSCRIPTIONS, RM L-3300, BETHESDA, MD 20814-3998
USA
SN 0002-9165
J9 AM J CLIN NUTR
JI Am. J. Clin. Nutr.
PD JAN
PY 2010
VL 91
IS 1
BP 262S
EP 266S
DI 10.3945/ajcn.2009.28449D
PG 5
WC Nutrition & Dietetics
SC Nutrition & Dietetics
GA 534SM
UT WOS:000272917600037
PM 19923366
ER
PT J
AU Ramsier, MA
Cunningham, AJ
Finneran, JJ
Dominy, NJ
AF Ramsier, Marissa A.
Cunningham, Andrew J.
Finneran, James J.
Dominy, Nathaniel J.
TI Social drive and the coevolution of auditory sensitivity with group size
in strepsirrhine primates.
SO AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY
LA English
DT Meeting Abstract
CT 79th Annual Meeting of the
American-Association-of-Physical-Anthropologists
CY APR 14-17, 2010
CL Albuquerque, NM
SP Amer Assoc Phys Anthropol
C1 [Ramsier, Marissa A.; Cunningham, Andrew J.; Dominy, Nathaniel J.] Univ Calif Santa Cruz, Dept Anthropol, Santa Cruz, CA 95064 USA.
[Cunningham, Andrew J.] George Washington Univ, Dept Anthropol, Washington, DC 20052 USA.
[Finneran, James J.] USN, Marine Mammal Program, SSC Pacific, San Diego, CA 92152 USA.
[Dominy, Nathaniel J.] Univ Calif Santa Cruz, Dept Ecol & Evolutionary Biol, Santa Cruz, CA 95064 USA.
NR 0
TC 1
Z9 1
U1 0
U2 1
PU WILEY-LISS
PI HOBOKEN
PA DIV JOHN WILEY & SONS INC, 111 RIVER ST, HOBOKEN, NJ 07030 USA
SN 0002-9483
J9 AM J PHYS ANTHROPOL
JI Am. J. Phys. Anthropol.
PY 2010
SU 50
BP 194
EP 194
PG 1
WC Anthropology; Evolutionary Biology
SC Anthropology; Evolutionary Biology
GA 565LT
UT WOS:000275295200629
ER
PT J
AU Wells, TS
LeardMann, CA
Fortuna, SO
Smith, B
Smith, TC
Ryan, MAK
Boyko, EJ
Blazer, D
AF Wells, Timothy S.
LeardMann, Cynthia A.
Fortuna, Sarah O.
Smith, Besa
Smith, Tyler C.
Ryan, Margaret A. K.
Boyko, Edward J.
Blazer, Dan
CA Millennium Cohort Study Team
TI A Prospective Study of Depression Following Combat Deployment in Support
of the Wars in Iraq and Afghanistan
SO AMERICAN JOURNAL OF PUBLIC HEALTH
LA English
DT Article
ID POSTTRAUMATIC-STRESS-DISORDER; MENTAL-HEALTH PROBLEMS; PERSIAN-GULF-WAR;
MILLENNIUM COHORT; MILITARY SERVICE; PRIMARY-CARE; US MILITARY; MAJOR
DEPRESSION; UNITED-STATES; PEACEKEEPING OPERATIONS
AB Objective. We investigated relations between deployment and new-onset depression among US service members recently deployed to the wars in Iraq and Afghanistan.
Methods. We included 40219 Millennium Cohort Study participants who completed baseline and follow-up questionnaires and met inclusion criteria. Participants were identified with depression if they met the Primary Care Evaluation of Mental Disorders Patient Health Questionnaire criteria for depression at follow-up, but not at baseline.
Results. Deployed men and women with combat exposures had the highest onset of depression, followed by those not deployed and those deployed without combat exposures. Combat-deployed men and women were at increased risk for new-onset depression compared with nondeployed men and women (men: adjusted odds ratio [AOR]=1.32; 95% confidence interval [CI]=1.13, 1.54; women: AOR=2.13; 95% CI=1.70, 2.65). Conversely, deployment without combat exposures led to decreased risk for new-onset depression compared with those who did not deploy (men: AOR=0.66; 95% CI=0.53, 0.83; women: AOR = 0.65; 95% CI = 0.47, 0.89).
Conclusions. Deployment with combat exposures is a risk factor for new-onset depression among US service members. Post-deployment screening may be beneficial for US service members exposed to combat. (Am J Public Health. 2010;100:90-99. doi:10.2105/AJPH.2008.155432)
C1 [Wells, Timothy S.; Fortuna, Sarah O.] USAF, Res Lab, Wright Patterson AFB, OH 45433 USA.
[LeardMann, Cynthia A.; Smith, Besa; Smith, Tyler C.; Ryan, Margaret A. K.] USN, US Dept Def, Ctr Deployment Hlth Res, Hlth Res Ctr, San Diego, CA 92152 USA.
[Boyko, Edward J.] VA Puget Sound Hlth Care Syst, Seattle Epidemiol Res & Informat Ctr, Seattle, WA USA.
[Blazer, Dan] Duke Univ, Med Ctr, Durham, NC USA.
RP Wells, TS (reprint author), 711th HPW RHPA,Bldg 824,Room 206,2800 Q St, Wright Patterson AFB, OH 45433 USA.
EM timothy.wells@wpafb.af.mil
RI Blazer II, Dan/D-6675-2012
FU Department of Defense [60002]
FX This work represents report 08-06, 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 ofthe Department of the Navy, Department of the Army,
Department of the Air- Force, Department of Defense, Department of
Veterans Affairs, or the US Govemment.
NR 82
TC 106
Z9 106
U1 10
U2 17
PU AMER PUBLIC HEALTH ASSOC INC
PI WASHINGTON
PA 800 I STREET, NW, WASHINGTON, DC 20001-3710 USA
SN 0090-0036
J9 AM J PUBLIC HEALTH
JI Am. J. Public Health
PD JAN
PY 2010
VL 100
IS 1
BP 90
EP 99
DI 10.2105/AJPH.2008.155432
PG 10
WC Public, Environmental & Occupational Health
SC Public, Environmental & Occupational Health
GA 538EK
UT WOS:000273166800020
PM 19910353
ER
PT J
AU Smith, AD
Harland, RC
Testa, G
Gentry, S
AF Smith, Ann D.
Harland, Robert C.
Testa, Giuliano
Gentry, Sommer
TI Customized Markov Decision Process for Kidney Paired Donation Registries
SO AMERICAN JOURNAL OF TRANSPLANTATION
LA English
DT Meeting Abstract
CT 10th Annual State of the Art Winter Symposium of the
American-Society-of-Transplant-Surgeons
CY JAN 15-17, 2010
CL Ft Lauderdale, FL
SP Amer Soc Transplant Surg
C1 [Smith, Ann D.; Harland, Robert C.; Testa, Giuliano] Univ Chicago, Chicago, IL 60637 USA.
[Gentry, Sommer] USN Acad, Annapolis, MD 21402 USA.
NR 0
TC 0
Z9 0
U1 0
U2 1
PU WILEY-BLACKWELL PUBLISHING, INC
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 1600-6135
J9 AM J TRANSPLANT
JI Am. J. Transplant.
PD JAN
PY 2010
VL 10
SU 1
BP 65
EP 65
PG 1
WC Surgery; Transplantation
SC Surgery; Transplantation
GA 539ZC
UT WOS:000273297900074
ER
PT J
AU Masterson, D
AF Masterson, Dan
TI Japanese Prayer Below the Equator: How Brazilians Believe in the Church
of World Messianity
SO AMERICAS
LA English
DT Book Review
C1 [Masterson, Dan] USN Acad, Annapolis, MD 21402 USA.
RP Masterson, D (reprint author), USN Acad, Annapolis, MD 21402 USA.
NR 1
TC 0
Z9 0
U1 0
U2 0
PU ACAD AMER FRANCISCAN HIST
PI WEST BETHESDA
PA BOX 34440, WEST BETHESDA, MD 20817 USA
SN 0003-1615
J9 AMERICAS
JI Americas
PD JAN
PY 2010
VL 66
IS 3
SI SI
BP 403
EP 404
PG 2
WC History
SC History
GA 546EV
UT WOS:000273794100012
ER
PT J
AU North, SH
Lock, EH
King, TR
Franek, JB
Walton, SG
Taitt, CR
AF North, Stella H.
Lock, Evgeniya H.
King, Tiffany R.
Franek, James B.
Walton, Scott G.
Taitt, Chris R.
TI Effect of Physicochemical Anomalies of Soda-Lime Silicate Slides on
Biomolecule Immobilization
SO ANALYTICAL CHEMISTRY
LA English
DT Article
ID MICROARRAY SUPPORT MATERIALS; MELT-DERIVED GLASS; ADSORBENT
HETEROGENEITY; PROTEIN IMMOBILIZATION; GAS-CHROMATOGRAPHY; SURFACE;
IMMUNOASSAY; DURABILITY; ADSORPTION; MICROCHIPS
AB Glass microscope slides are considered by many as the substrate of choice for microarray manufacturing due to their amenability to various surface chemistry modifications. The use of silanes to attach various functional groups onto glass slides has provided a versatile tool for the covalent immobilization of many diverse biomolecules of interest. We recently noted a dramatic reduction in biomolecule immobilization efficiency on standard microscope slides prepared using it well-characterized silanization method. A survey of commercial soda-lime slides yielded the surprising result that slides purchased prior to 2008 had superior immobilization efficiencies when compared to those purchased after 2008. Characterization of the slides by X-ray photoelectron spectroscopy (XPS), contact angle measurements, and atomic force microscopy (AFM), revealed a significant correlation (R > 0.9) between magnesium content, surface roughness, and bioimmobilization efficiency. High performance slides had higher magnesium content and higher root-mean-square (rms) roughness (P < 0.005) than slides with lower bioimmobilization efficiencies. Although the exact mechanism of how magnesium content and surface roughness affect silane deposition has not yet been defined, we show that recent changes in the chemical and physical properties of commercial soda-lime slides affect the ability of these slides to be covalently modified.
C1 [North, Stella H.; King, Tiffany R.; Taitt, Chris R.] USN, Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 USA.
[Lock, Evgeniya H.; Franek, James B.; Walton, Scott G.] USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
RP Taitt, CR (reprint author), USN, Res Lab, Ctr Bio Mol Sci & Engn, 4555 Overlook Ave,SW, Washington, DC 20375 USA.
EM chris.taitt@nrl.navy.mil
FU American Society of Engineering Education; National Research Council;
NSF Historically Black Colleges and Universities-Tribal College; Joint
Science & Technology Office for Chemical & Biological Defense/Defense
Threat Reduction Agency; Office of Naval Research
FX S.H.N. and E.H.L. contributed equally to this work. The authors thank
Drs. Marie Archer and Gusphyl Justin for their contribution of
materials, technical assistance, and helpful discussions. S.H.N. and
E.H.L. are recipients of the American Society of Engineering Education
and National Research Council postdoctoral fellowships, respectively.
T.R.K. Was Supported by an NSF Historically Black Colleges and
Universities-Tribal College or University internship program. This work
is funded by Joint Science & Technology Office for Chemical & Biological
Defense/Defense Threat Reduction Agency and the Office of Naval
Research. The views expressed here are those of the authors and do not
represent the opinions of the U.S. Navy, the U.S. Department of Defense,
or the U.S. government.
NR 50
TC 11
Z9 11
U1 0
U2 8
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0003-2700
EI 1520-6882
J9 ANAL CHEM
JI Anal. Chem.
PD JAN 1
PY 2010
VL 82
IS 1
BP 406
EP 412
DI 10.1021/ac902324r
PG 7
WC Chemistry, Analytical
SC Chemistry
GA 539OT
UT WOS:000273265700062
PM 20000446
ER
PT J
AU Anderson, GP
Moore, M
Charles, PT
Goldman, ER
AF Anderson, George P.
Moore, Martin
Charles, Paul T.
Goldman, Ellen R.
TI BEAD-BASED FLUID ARRAY DETECTION OF PENTAERYTHRITOL TETRANITRATE:
COMPARISON OF MONOCLONAL VS. LLAMA POLYCLONAL ANTIBODIES
SO ANALYTICAL LETTERS
LA English
DT Article
DE Fluid array immunoassay; Llama; Luminex; Microsphere; Pentaerythritol
tetranitrate; PETN
ID TNT; EXPLOSIVES; IMMUNOASSAYS; BIOSENSOR; HAPTEN
AB In today's security conscious environment rapid detection of explosives, such as pentaerythritol tetranitrate (PETN), the high energy material common in plastic explosives, is of critical importance. We evaluated two monoclonal antibodies and a rabbit polyclonal antibody, developed for the detection of PETN. Although these antibodies showed binding to bioconjugates of PETN as well as the hapten, PETN-succinate, we did not observe binding by free PETN. For demonstration of a competitive bead based fluid array immunoassay for PETN detection, we developed llama polyclonal antibody for the detection of free PETN. Our ultimate goal is developing anti-PETN single domain antibodies.
C1 [Anderson, George P.; Moore, Martin; Charles, Paul T.; Goldman, Ellen R.] USN, Res Lab, Ctr Biomol Sci & Engn, Washington, DC 20375 USA.
RP Goldman, ER (reprint author), USN, Res Lab, Ctr Biomol Sci & Engn, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM ellen.goldman@nrl.navy.mil
RI Anderson, George/D-2461-2011
OI Anderson, George/0000-0001-7545-9893
NR 15
TC 4
Z9 4
U1 0
U2 11
PU TAYLOR & FRANCIS INC
PI PHILADELPHIA
PA 325 CHESTNUT ST, SUITE 800, PHILADELPHIA, PA 19106 USA
SN 0003-2719
J9 ANAL LETT
JI Anal. Lett.
PY 2010
VL 43
IS 18
BP 2913
EP 2922
DI 10.1080/00032711003763699
PG 10
WC Chemistry, Analytical
SC Chemistry
GA 695DU
UT WOS:000285351600010
ER
PT B
AU Beal, DN
Bandyopadhyay, PR
AF Beal, David N.
Bandyopadhyay, Promode R.
BE Taylor, GK
Triantafyllou, MS
Tropea, C
TI A harmonic model of hydrodynamic forces produced by a flapping fin
SO ANIMAL LOCOMOTION
LA English
DT Article; Book Chapter
ID INSECT FLIGHT; VEHICLES
AB The hydrodynamic control laws of unsteady fins inspired by swimming and flying animals are considered. A controller based on cycle-averaged forces requires a bandwidth lower than the flapping frequency, with correspondingly slow reactions to disturbances or commands in order to avoid undesirable feedback from the oscillating fins. A harmonic model of the periodic thruster forces was empirically found using a mechanical fin flapping in roll and pitch in hover, in uniform flow, and under various kinematic conditions. A multi-fin vehicle could use this model to account for the dominant non-linearities and minimize undesirable motions through coordinated control of individual fins.
C1 [Beal, David N.; Bandyopadhyay, Promode R.] USN, Undersea Warfare Ctr, Autonomous Syst & Technol Dept, Newport, RI USA.
RP Beal, DN (reprint author), USN, Undersea Warfare Ctr, Autonomous Syst & Technol Dept, Newport, RI USA.
EM bealdn@npt.nuwc.navy.mil; bandyopadhyaypr@npt.nuwc.navy.mil
NR 9
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
BN 978-3-642-11632-2
PY 2010
BP 37
EP 44
DI 10.1007/978-3-642-11633-9_4
D2 10.1007/978-3-642-11633-9
PG 8
WC Zoology
SC Zoology
GA BPT79
UT WOS:000279884500004
ER
PT B
AU Jones, KD
Platzer, MF
AF Jones, Kevin D.
Platzer, Max F.
BE Taylor, GK
Triantafyllou, MS
Tropea, C
TI Design and development considerations for biologically inspired
flapping-wing micro air vehicles
SO ANIMAL LOCOMOTION
LA English
DT Article; Book Chapter
AB In this paper, the decade of numerical and experimental investigations leading to the development of the authors unique flapping-wing micro air vehicle is summarized. Early investigations included the study of boundary layer energization by means or a small flapping foil embedded in a flat-plate boundary layer, the reduction of the recirculatory flow region behind a backward-facing step by means of a small flapping foil, and the reduction or suppression of flow separation behind blunt or cusped airfoil trailing edges by flapping a small foil located in the wake flow region. These studies were followed by systematic investigations of the aerodynamic characteristics of single flapping airfoils and airfoil combinations. These unsteady flows were described using flow visualization, laser-Doppler velocimetry in addition to panel and Navier-Stokes computations. It is then shown how this flapping-wing database was used to conceive, design and develop a micro air vehicle which has a fixed wing for lift and two flapping wings for thrust generation. While animal flight is characterized by a coupled force generation, the present design appears to separate lift and thrust. However, in fact, the performance of one surface is closely coupled to the other surfaces.
C1 [Jones, Kevin D.; Platzer, Max F.] USN, Postgrad Sch, Monterey, CA USA.
RP Jones, KD (reprint author), USN, Postgrad Sch, Monterey, CA USA.
EM jones@nps.edu; mplatzer@nps.edu
NR 25
TC 2
Z9 2
U1 0
U2 0
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
BN 978-3-642-11632-2
PY 2010
BP 237
EP 248
DI 10.1007/978-3-642-11633-9_19
D2 10.1007/978-3-642-11633-9
PG 12
WC Zoology
SC Zoology
GA BPT79
UT WOS:000279884500019
ER
PT J
AU Mierla, M
Inhester, B
Antunes, A
Boursier, Y
Byrne, JP
Colaninno, R
Davila, J
de Koning, CA
Gallagher, PT
Gissot, S
Howard, RA
Howard, TA
Kramar, M
Lamy, P
Liewer, PC
Maloney, S
Marque, C
McAteer, TJ
Moran, T
Rodriguez, L
Srivastava, N
Cyr, OCS
Stenborg, G
Temmer, M
Thernisien, A
Vourlidas, A
West, MJ
Wood, BE
Zhukov, AN
AF Mierla, M.
Inhester, B.
Antunes, A.
Boursier, Y.
Byrne, J. P.
Colaninno, R.
Davila, J.
de Koning, C. A.
Gallagher, P. T.
Gissot, S.
Howard, R. A.
Howard, T. A.
Kramar, M.
Lamy, P.
Liewer, P. C.
Maloney, S.
Marque, C.
McAteer, T. J.
Moran, T.
Rodriguez, L.
Srivastava, N.
Cyr, O. C. St.
Stenborg, G.
Temmer, M.
Thernisien, A.
Vourlidas, A.
West, M. J.
Wood, B. E.
Zhukov, A. N.
TI On the 3-D reconstruction of Coronal Mass Ejections using coronagraph
data
SO ANNALES GEOPHYSICAE
LA English
DT Article
DE Solar physics, astrophysics, and astronomy; Flares and mass ejections
ID GEOMAGNETIC STORMS; STEREO MISSION; CONE MODEL; SECCHI; LASCO; CMES;
ASSOCIATION; TRANSIENTS; SPACECRAFT; GEOMETRY
AB Coronal Mass ejections (CMEs) are enormous eruptions of magnetized plasma expelled from the Sun into the interplanetary space, over the course of hours to days. They can create major disturbances in the interplanetary medium and trigger severe magnetic storms when they collide with the Earth's magnetosphere. It is important to know their real speed, propagation direction and 3-D configuration in order to accurately predict their arrival time at the Earth. Using data from the SECCHI coronagraphs onboard the STEREO mission, which was launched in October 2006, we can infer the propagation direction and the 3-D structure of such events. In this review, we first describe different techniques that were used to model the 3-D configuration of CMEs in the coronagraph field of view ( up to 15 R-circle dot). Then, we apply these techniques to different CMEs observed by various coronagraphs. A comparison of results obtained from the application of different reconstruction algorithms is presented and discussed.
C1 [Mierla, M.] Romanian Acad, Inst Geodynam, Bucharest, Romania.
[Mierla, M.; Gissot, S.; Marque, C.; Rodriguez, L.; West, M. J.; Zhukov, A. N.] Royal Observ Belgium, Solar Terr Ctr Excellence SIDC, Brussels, Belgium.
[Inhester, B.] Max Planck Inst Sonnensyst Forsch, D-37191 Katlenburg Lindau, Germany.
[Antunes, A.; Howard, R. A.; Vourlidas, A.; Wood, B. E.] USN, Res Lab, Washington, DC 20375 USA.
[Boursier, Y.; Lamy, P.] Lab Astrophys Marseille, Marseille, France.
[Boursier, Y.] Ecole Polytech Fed Lausanne, Signal Proc Inst, CH-1015 Lausanne, Switzerland.
[Byrne, J. P.; Gallagher, P. T.; Maloney, S.; McAteer, T. J.] Trinity Coll Dublin, Sch Phys, Astrophys Res Grp, Dublin 2, Ireland.
[Colaninno, R.] George Mason Univ, Fairfax, VA 22030 USA.
[de Koning, C. A.] Univ Colorado, CIRES SWPC, Boulder, CO 80309 USA.
[Howard, T. A.] USAF, Res Lab, Natl Solar Observ, Sunspot, NM 88349 USA.
[Howard, T. A.] SW Res Inst, Dept Space Studies, Boulder, CO 80302 USA.
[Kramar, M.] Catholic Univ Amer, Washington, DC 20064 USA.
[Liewer, P. C.] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA.
[Srivastava, N.] Phys Res Lab, Udaipur Solar Observ, Udaipur, India.
[Stenborg, G.] Interferometrics Inc, Herndon, VA USA.
[Temmer, M.] Graz Univ, Inst Phys, Kanzelhohe Observ IGAM, Graz, Austria.
[Thernisien, A.] Univ Space Res Assoc, Columbia, MD USA.
[Zhukov, A. N.] Moscow MV Lomonosov State Univ, Skobeltsyn Inst Nucl Phys, Moscow, Russia.
RP Mierla, M (reprint author), Romanian Acad, Inst Geodynam, Bucharest, Romania.
EM mmierla@gmail.com
RI Vourlidas, Angelos/C-8231-2009; McAteer, R. T. James/D-3736-2011; Byrne,
Jason/K-4827-2013; Maloney, Shane/G-6879-2016; Gallagher,
Peter/C-7717-2011;
OI Vourlidas, Angelos/0000-0002-8164-5948; Byrne,
Jason/0000-0002-9412-8878; Gallagher, Peter/0000-0001-9745-0400; Temmer,
Manuela/0000-0003-4867-7558
FU SIDC; ROB; Austrian Academy of Sciences at the Institute of Physics,
University of Graz [APART 11262]; ESA; NASA
FX M. M. would like to thank SIDC and ROB for the financial support and for
the facilities to carry out this work. M. T. is a recipient of an
APART-fellowship of the Austrian Academy of Sciences at the Institute of
Physics, University of Graz (APART 11262). We acknowledge the
SECCHI/STEREO and SOHO/LASCO consortia for providing the data. The
SEC-CHI data used here were produced by an international consortium of
the Naval Research Laboratory (USA), Lockheed Martin Solar and
Astrophysics Lab (USA), NASA Goddard Space Flight Center (USA),
Rutherford Appleton Laboratory (UK), University of Birmingham (UK),
Max-Planck Institute for Solar System Research (Germany), Centre
Spatiale de Liege (Belgium), Institut d'Optique Theorique et Appliquee
(France), Institut d'Astrophysique Spatiale (France). The LASCO data
used here were produced by an international consortium of the Naval
Research Laboratory (USA), the Laboratoire d'Astrophysique de Marseille
(France, the former Laboratoire d'Astronomie Spatiale), the Max-Planck
Institute for Solar System Research (Germany), and the School of Physics
and Astronomy, University of Birmingham, (UK). SoHO is a project of
joint collaboration by ESA and NASA.
NR 73
TC 53
Z9 55
U1 0
U2 8
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 0992-7689
EI 1432-0576
J9 ANN GEOPHYS-GERMANY
JI Ann. Geophys.
PY 2010
VL 28
IS 1
BP 203
EP 215
PG 13
WC Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology &
Atmospheric Sciences
SC Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences
GA 550OI
UT WOS:000274136900019
ER
PT J
AU Krall, J
Huba, JD
Joyce, G
Yokoyama, T
AF Krall, J.
Huba, J. D.
Joyce, G.
Yokoyama, T.
TI Density enhancements associated with equatorial spread F
SO ANNALES GEOPHYSICAE
LA English
DT Article
DE Ionosphere; Equatorial ionosphere; Ionosphere-atmosphere interactions;
Ionospheric irregularities
ID LOW-LATITUDE IONOSPHERE; HINOTORI SATELLITE; IMPEDANCE PROBE; PLASMA
BUBBLES; REGION; MODEL; IRREGULARITIES; WINDS; BOARD
AB Forces governing the three-dimensional structure of equatorial spread-F (ESF) plumes are examined using the NRL SAMI3/ESF three-dimensional simulation code. As is the case with the equatorial ionization anomaly (IA), density crests within the plume occur where gravitational and diffusive forces are in balance. Large < B > E x < B > B drifts within the ESF plume place these crests on field lines with apex heights higher than those of the background IA crests. Large poleward field-aligned ion velocities within the plume result in large ion-neutral diffusive forces that support these ionization crests at altitudes higher than background IA crest altitudes. We show examples in which density enhancements associated with ESF, also called 'plasma blobs,' can occur within an ESF plume on density-crest field lines, at or above the density crests. Simulated ESF density enhancements reproduce all key features of those that have been observed in situ.
C1 [Krall, J.; Huba, J. D.] USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
[Joyce, G.] Icarus Res Inc, Bethesda, MD 20824 USA.
[Yokoyama, T.] Cornell Univ, Dept Earth & Atmospher Sci, Ithaca, NY 14850 USA.
RP Krall, J (reprint author), USN, Res Lab, Div Plasma Phys, Code 6790,4555 Overlook Ave SW, Washington, DC 20375 USA.
EM jonathan.krall@nrl.navy.mil
FU Office of Naval Research; NASA
FX The authors would like to thank Sidney Ossakow of Berkeley Research
Associates for helpful discussions. This work was supported by the
Office of Naval Research and NASA.
NR 36
TC 20
Z9 20
U1 2
U2 8
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 0992-7689
EI 1432-0576
J9 ANN GEOPHYS-GERMANY
JI Ann. Geophys.
PY 2010
VL 28
IS 2
BP 327
EP 337
PG 11
WC Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology &
Atmospheric Sciences
SC Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences
GA 561RH
UT WOS:000274995800001
ER
PT J
AU Lepping, RP
Wu, CC
AF Lepping, R. P.
Wu, C. -C.
TI Selection effects in identifying magnetic clouds and the importance of
the closest approach parameter
SO ANNALES GEOPHYSICAE
LA English
DT Article
DE Interplanetary physics; Interplanetary magnetic fields; Solar wind
plasma
ID CORONAL MASS EJECTIONS; INTER-PLANETARY SHOCK; SOLAR-WIND ELECTRONS;
ENERGETIC PARTICLES; GEOMAGNETIC STORMS; FIELD STRUCTURE; DRIVER GAS;
COSMIC-RAY; 1 AU; VOYAGER
AB This study is motivated by the unusually low number of magnetic clouds (MCs) that are strictly identified within interplanetary coronal mass ejections (ICMEs), as observed at 1 AU; this is usually estimated to be around 30% or lower. But a looser definition of MCs may significantly increase this percentage. Another motivation is the unexpected shape of the occurrence distribution of the observers' 'closest approach distances' (measured from a MC's axis, and called CA) which drops off somewhat rapidly as |CA| (in % of MC radius) approaches 100%, based on earlier studies. We suggest, for various geometrical and physical reasons, that the |CA|-distribution should be somewhere between a uniform one and the one actually observed, and therefore the 30% estimate should be higher. So we ask, When there is a failure to identify a MC within an ICME, is it occasionally due to a large |CA| passage, making MC identification more difficult, i.e., is it due to an event selection effect? In attempting to answer this question we examine WIND data to obtain an accurate distribution of the number of MCs vs. |CA| distance, whether the event is ICME-related or not, where initially a large number of cases (N=98) are considered. This gives a frequence distribution that is far from uniform, confirming earlier studies. This along with the fact that there are many ICME identification-parameters that do not depend on |CA| suggest that, indeed an MC event selection effect may explain at least part of the low ratio of (No. MCs)/(No. ICMEs). We also show that there is an acceptable geometrical and physical consistency in the relationships for both average 'normalized' magnetic field intensity change and field direction change vs. |CA| within a MC, suggesting that our estimates of |CA|, B(O) (magnetic field intensity on the axis), and choice of a proper 'cloud coordinate' system (all needed in the analysis) are acceptably accurate. Therefore, the MC fitting model (Lepping et al., 1990) is adequate, on average, for our analysis. However, this selection effect is not likely to completely answer our original question, on the unexpected ratio of MCs to ICMEs, so we must look for other factors, such as peculiarities of CME birth conditions. As a by-product of this analysis, we determine that the first order structural effects within a MC due to its interaction with the solar wind, plus the MC's usual expansion at 1 AU (i.e., the non-force free components of the MC's field) are, on average, weakly dependent on radial distance from the MC's axis; that is, in the outer reaches of a typical MC the non-force free effects show up, but even there they are rather weak. Finally, we show that it is not likely that a MC's size distribution statistically controls the occurrence distribution of the estimated |CA|s.
C1 [Wu, C. -C.] USN, Res Lab, Washington, DC USA.
[Lepping, R. P.] NASA, Goddard Space Flight Ctr, Heliosphys Sci Div, Greenbelt, MD 20771 USA.
RP Wu, CC (reprint author), USN, Res Lab, Washington, DC USA.
EM chin-chun.wu@nrl.navy.mil
FU NASA [NNG08EF51P, NNX07AH85G]
FX We thank the WIND/MFI and SWE teams, for the care they employ in
producing the plasma and field data used for part of this work, and in
particular we thank Keith Ogilvie, the SWE principal investigator, and
Adam Szabo (PI) and Franco Mariani of the MFI team. We thank Daniel
Berdichevsky for helpful comments. We are very grateful to the referee
for pointing out an error in our original computation of the average
model field across a magnetic cloud. This work was supported by the NASA
Helio-physics Guest Investigator and Living With a Star programs under
grant numbers NNG08EF51P and NNX07AH85G.
NR 56
TC 15
Z9 15
U1 0
U2 2
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 0992-7689
J9 ANN GEOPHYS-GERMANY
JI Ann. Geophys.
PY 2010
VL 28
IS 8
BP 1539
EP 1552
DI 10.5194/angeo-28-1539-2010
PG 14
WC Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology &
Atmospheric Sciences
SC Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences
GA 645EC
UT WOS:000281432700008
ER
PT J
AU Krall, J
Huba, JD
Ossakow, SL
Joyce, G
AF Krall, J.
Huba, J. D.
Ossakow, S. L.
Joyce, G.
TI Equatorial spread F fossil plumes
SO ANNALES GEOPHYSICAE
LA English
DT Article
DE Ionosphere; Equatorial ionosphere; Ionosphere-atmosphere interactions;
Ionospheric irregularities
ID MERIDIONAL WIND CONTROL; LOW-LATITUDE; ELECTRIC-FIELD; IONOSPHERE;
MODEL; IRREGULARITIES; SIMULATION; SATELLITE; ISSUES; SYSTEM
AB Behaviour of equatorial spread F (ESF) fossil plumes, i.e., ESF plumes that have stopped rising, is examined using the NRL SAMI3/ESF three-dimensional simulation code. We find that fossil bubbles, plasma density depletions associated with fossil plumes, can persist as high-altitude equatorial depletions even while being "blown" by zonal winds. Corresponding airglow-proxy images of fossil plumes, plots of electron density versus longitude and latitude at a constant altitude of 288 km, are shown to partially "fill in" in most cases, beginning with the highest altitude field lines within the plume. Specifically, field lines upon which the E field has fallen entirely to zero are affected and only the low altitude (<= 600 km) portion if each field line fills in. This suggests that it should be possible to observe a bubble at high altitude on a field line for which the corresponding airglow image no longer shows a depletion. In all cases ESF plumes stop rising when the flux-tube-integrated ion mass density inside the upper edge of the bubble is equal to that of the nearby background, further supporting the result of Krall et al. (2010b).
C1 [Krall, J.; Huba, J. D.] USN, Res Lab, Div Plasma Phys, Washington, DC 20375 USA.
[Ossakow, S. L.] Berkeley Res Associates Inc, Beltsville, MD 20705 USA.
[Joyce, G.] Icarus Res Inc, Bethesda, MD 20824 USA.
RP Krall, J (reprint author), USN, Res Lab, Div Plasma Phys, Code 6790,4555 Overlook Ave SW, Washington, DC 20375 USA.
EM jonathan.krall@nrl.navy.mil
FU Office of Naval Research; NASA
FX This work was supported by the Office of Naval Research and NASA.
NR 34
TC 6
Z9 6
U1 0
U2 3
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 0992-7689
EI 1432-0576
J9 ANN GEOPHYS-GERMANY
JI Ann. Geophys.
PY 2010
VL 28
IS 11
BP 2059
EP 2069
DI 10.5194/angeo-28-2059-2010
PG 11
WC Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology &
Atmospheric Sciences
SC Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences
GA 687EM
UT WOS:000284760900005
ER
PT S
AU Harms, JW
AF Harms, Jeffrey W.
GP IEEE
TI Revision of MIL-HDBK-217, Reliability Prediction of Electronic Equipment
SO ANNUAL RELIABILITY AND MAINTAINABILITY SYMPOSIUM, 2010 PROCEEDINGS
SE Reliability and Maintainability Symposium
LA English
DT Proceedings Paper
CT Annual Reliability and Maintainability Symposium/International Symposium
on Product Quality and Integrity
CY JAN 25-28, 2010
CL San Jose, CA
SP AIAA, IEEE, ASQ, IEST, IIE, SAE, SOLE, SRE, SSS
DE reliability; prediction
AB This paper will discuss current efforts in the revision of MIL-HDBK-217, Military Handbook, Reliability Prediction of Electronic Equipment. It has been over a decade since this reliability prediction handbook was last updated, yet it remains the most widely used reliability prediction method for electronic equipment. In February 2008, the Defense Standardization Program Office (DSPO) tasked the Crane Division, Naval Surface Warfare Center (NSWC Crane), as the Preparing Activity, to revise MIL-HDBK-217. A plan has been created to refresh the handbook and to look at adding a new approach to better reflect reliability of electronic equipment. A working group of individuals representing Department of Defense (DoD) and industry has been established to conduct this revision. Development and implementation of solutions that reflect industry best practices and DoD needs is critical for success. Results of this task are planned to be new revisions of MIL-HDBK-217. These revisions will provide an updated reliability prediction tool that will assist reliability engineers in performing their work.
C1 USN, Ctr Surface Warfare, Crane Div, Crane, IN 47421 USA.
RP Harms, JW (reprint author), USN, Ctr Surface Warfare, Crane Div, Bldg 3334,Code GXMQ,300 Highway 361, Crane, IN 47421 USA.
EM jeffrey.harms@navy.mil
NR 2
TC 0
Z9 0
U1 0
U2 2
PU IEEE
PI NEW YORK
PA 345 E 47TH ST, NEW YORK, NY 10017 USA
SN 0149-144X
BN 978-1-4244-5103-6
J9 P REL MAINT S
PY 2010
PG 3
WC Engineering, Multidisciplinary; Engineering, Industrial; Operations
Research & Management Science
SC Engineering; Operations Research & Management Science
GA BTL33
UT WOS:000287207000025
ER
PT S
AU Turner, CH
Wang, X
Lau, KC
An, W
Dunlap, BI
AF Turner, C. Heath
Wang, Xian
Lau, Kah Chun
An, Wei
Dunlap, Brett I.
BE Wheeler, RA
TI Atomistic Modeling of Solid Oxide Fuel Cells
SO ANNUAL REPORTS IN COMPUTATIONAL CHEMISTRY, VOL 6
SE Annual Reports in Computational Chemistry
LA English
DT Article; Book Chapter
DE solid oxide fuel cell; modeling; kinetic Monte Carlo; frequency
response; atomistic; density functional theory; electrochemistry
ID KINETIC MONTE-CARLO; YTTRIA-STABILIZED ZIRCONIA; DENSITY-FUNCTIONAL
THEORY; ION MASS-SPECTROMETRY; 1ST-PRINCIPLES-BASED MOLECULAR
SIMULATION; TRANSITION-METAL SURFACES; AUGMENTED-WAVE METHOD; OXYGEN
REDUCTION; REACTION-MECHANISM; AC-IMPEDANCE
AB In order to improve the performance, reliability, and efficiency of solid oxide fuel cells, it is important to understand the underlying atomic-level interactions and mechanisms that dictate the global operation dynamics. As a complement to the ongoing experimental progress in this area, a great deal of atomistic-level modeling studies has recently appeared in the literature. This chapter reviews the development of kinetic Monte Carlo simulation approaches for translating atomic-level information into experimentally observable properties. The combination of advanced experimental techniques with atomic-level simulations should provide the insight necessary for the optimal design of next-generation fuel cells.
C1 [Turner, C. Heath; Wang, Xian; An, Wei] Univ Alabama, Dept Chem & Biol Engn, Tuscaloosa, AL 35487 USA.
[Lau, Kah Chun] George Washington Univ, Dept Chem, Washington, DC 20052 USA.
[Dunlap, Brett I.] USN, Res Lab, Div Chem, Washington, DC 20375 USA.
RP Turner, CH (reprint author), Univ Alabama, Dept Chem & Biol Engn, Tuscaloosa, AL 35487 USA.
OI Dunlap, Brett/0000-0003-1356-6559
NR 139
TC 3
Z9 3
U1 1
U2 2
PU ELSEVIER SCIENCE BV
PI AMSTERDAM
PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS
SN 1574-1400
BN 978-0-444-53553-5; 978-0-444-53552-8
J9 ANN REP COMP CHEM
PY 2010
VL 6
BP 201
EP 234
DI 10.1016/S1574-1400(10)06011-1
PG 34
WC Chemistry, Physical
SC Chemistry
GA BCS38
UT WOS:000311275000012
ER
PT S
AU Pomfret, MB
Owrutsky, JC
Walker, RA
AF Pomfret, Michael B.
Owrutsky, Jeffrey C.
Walker, Robert A.
BE Yeung, ES
Zare, RN
TI In Situ Optical Studies of Solid-Oxide Fuel Cells
SO ANNUAL REVIEW OF ANALYTICAL CHEMISTRY, VOL 3
SE Annual Review of Analytical Chemistry
LA English
DT Article; Book Chapter
DE spectroscopy; thermal imaging; infrared; Raman
ID YTTRIA-STABILIZED ZIRCONIA; SULFUR-TOLERANT ANODE; RAMAN-SPECTROSCOPY;
DIRECT-OXIDATION; ELECTROCHEMICAL IMPEDANCE; TEMPERATURE DISTRIBUTION;
CATHODE MATERIALS; ELECTROLYTE FILM; SOFC ANODES; THERMODYNAMIC ANALYSIS
AB Thermal imaging and vibrational spectroscopy have become important tools for examining the physical and chemical changes that occur in real time in solid-oxide fuel cells (SOFCs). Imaging techniques can resolve temperature differences as fine as 0.1 degrees C across a SOFC electrode at temperatures higher than 600 degrees C. Vibrational spectroscopy can identify molecular species and changes in material phases in operating SOFCs. This review discusses the benefits and challenges associated with directly observing processes that are important to SOFC performance and durability. In situ optical methods can provide direct insight into reaction mechanisms that can be inferred only indirectly from electrochemical measurements such as voltammetry and electrochemical impedance spectroscopy and from kinetic models and postmortem, ex situ examinations of SOFC components. Particular attention is devoted to recent advances that, hopefully, will spur the development of new generations of efficient, versatile energy-producing devices.
C1 [Pomfret, Michael B.; Owrutsky, Jeffrey C.] USN, Div Chem, Res Lab, Washington, DC 20375 USA.
[Walker, Robert A.] Montana State Univ, Dept Chem & Biochem, Bozeman, MT 59717 USA.
RP Pomfret, MB (reprint author), USN, Div Chem, Res Lab, Washington, DC 20375 USA.
EM rawalker@chemistry.montana.edu
RI Owrutsky, Jeffrey/K-7649-2012
NR 143
TC 37
Z9 37
U1 3
U2 76
PU ANNUAL REVIEWS
PI PALO ALTO
PA 4139 EL CAMINO WAY, PO BOX 10139, PALO ALTO, CA 94303-0897 USA
SN 1936-1327
BN 978-0-8243-4403-0
J9 ANNU REV ANAL CHEM
JI Annu. Rev. Anal. Chem.
PY 2010
VL 3
BP 151
EP 174
DI 10.1146/annurev.anchem.111808.073641
PG 24
WC Chemistry, Analytical; Spectroscopy
SC Chemistry; Spectroscopy
GA BQB83
UT WOS:000280599500008
PM 20636038
ER
PT S
AU Dharmasiri, U
Witek, MA
Adams, AA
Soper, SA
AF Dharmasiri, Udara
Witek, Malgorzata A.
Adams, Andre A.
Soper, Steven A.
BE Yeung, ES
Zare, RN
TI Microsystems for the Capture of Low-Abundance Cells
SO ANNUAL REVIEW OF ANALYTICAL CHEMISTRY, VOL 3
SE Annual Review of Analytical Chemistry
LA English
DT Article; Book Chapter
DE cell capture and enumeration; circulating tumor cells; size-based
selection; immunoaffinity capture; fluorescence-activated sorters;
dielectrophoretic separation
ID CIRCULATING TUMOR-CELLS; POLYMERASE-CHAIN-REACTION; FIELD-FLOW
FRACTIONATION; HEMATOPOIETIC STEM-CELLS; BLOOD MONONUCLEAR-CELLS;
BREAST-CANCER CELLS; PERIPHERAL-BLOOD; CAPILLARY-ELECTROPHORESIS;
MONOCLONAL-ANTIBODIES; MATERNAL CIRCULATION
AB Efficient selection and enumeration of low-abundance biological cells are highly important in a variety of applications. For example, the clinical utility of circulating tumor cells (CTCs) in peripheral blood is recognized as a viable biomarker for the management of various cancers, in which the clinically relevant number of CTCs per 7.5 ml of blood is two to five. Although there are several methods for isolating rare cells from a variety of heterogeneous samples, such as immunomagnetic-assisted cell sorting and fluorescence-activated cell sorting, they are fraught with challenges. Microsystem-based technologies are providing new opportunities for selecting and isolating rare cells from complex, heterogeneous samples. Such approaches involve reductions in target-cell loss, process automation, and minimization of contamination issues. In this review, we introduce different application areas requiring rare cell analysis, conventional techniques for their selection, and finally microsystem approaches for low-abundance-cell isolation and enumeration.
C1 [Dharmasiri, Udara; Witek, Malgorzata A.; Adams, Andre A.; Soper, Steven A.] Louisiana State Univ, Dept Chem, Baton Rouge, LA 70803 USA.
[Soper, Steven A.] Louisiana State Univ, Dept Engn Mech, Baton Rouge, LA 70803 USA.
[Dharmasiri, Udara; Witek, Malgorzata A.; Soper, Steven A.] Louisiana State Univ, Ctr Biomodular Multiscale Syst, Baton Rouge, LA 70803 USA.
[Adams, Andre A.] USN, Ctr Biomol Sci & Engn, Res Lab, Washington, DC 20375 USA.
RP Dharmasiri, U (reprint author), Louisiana State Univ, Dept Chem, Baton Rouge, LA 70803 USA.
EM udharm1@tigers.lsu.edu; mwitek@lsu.edu; aadadams@alumni.lsu.edu;
chsope@lsu.edu
OI Adams, Andre/0000-0002-2979-249X
FU NCI NIH HHS [R33 CA099246-01]
NR 102
TC 68
Z9 68
U1 2
U2 44
PU ANNUAL REVIEWS
PI PALO ALTO
PA 4139 EL CAMINO WAY, PO BOX 10139, PALO ALTO, CA 94303-0897 USA
SN 1936-1327
BN 978-0-8243-4403-0
J9 ANNU REV ANAL CHEM
JI Annu. Rev. Anal. Chem.
PY 2010
VL 3
BP 409
EP 431
DI 10.1146/annurev.anchem.111808.073610
PG 23
WC Chemistry, Analytical; Spectroscopy
SC Chemistry; Spectroscopy
GA BQB83
UT WOS:000280599500019
PM 20636049
ER
PT J
AU Berck, P
Lipow, J
Plessner, Y
AF Berck, Peter
Lipow, Jonathan
Plessner, Yakir
TI Defense planning and fiscal strategy
SO APPLIED ECONOMICS LETTERS
LA English
DT Article
ID PROCUREMENT
AB In this article, we consider the optimal fiscal strategy of a government interested in maximizing expected social welfare in the face of a potential future security threat. While the common wisdom is that countries facing security threats should seek to bolster their fiscal position in order to 'save for a rainy day', we find that the optimization of expected social welfare may require governments to run 'precautionary' fiscal deficits.
C1 [Lipow, Jonathan] USN, Postgrad Sch, Dept Resource Management Inst, Monterey, CA 93943 USA.
[Berck, Peter] UC Berkeley, Dept Agr & Resource Econ, Berkeley, CA USA.
[Plessner, Yakir] Hebrew Univ Jerusalem, Dept Agr Econ & Management, IL-76100 Rehovot, Israel.
RP Lipow, J (reprint author), USN, Postgrad Sch, Dept Resource Management Inst, Monterey, CA 93943 USA.
EM jlipow@oberlin.edu
NR 6
TC 0
Z9 0
U1 0
U2 0
PU ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXFORDSHIRE, ENGLAND
SN 1350-4851
J9 APPL ECON LETT
JI Appl. Econ. Lett.
PY 2010
VL 17
IS 11
BP 1063
EP 1065
DI 10.1080/00036840902817557
PG 3
WC Economics
SC Business & Economics
GA 630HO
UT WOS:000280264100007
ER
PT J
AU Sweeney, JC
Stone, R
Campbell, M
McBain, J
St Leger, J
Xitco, M
Jensen, E
Ridgway, S
AF Sweeney, Jay C.
Stone, Rae
Campbell, Michelle
McBain, Jim
St Leger, Judy
Xitco, Mark
Jensen, Eric
Ridgway, Sam
TI Comparative Survivability of Tursiops Neonates from Three U.S.
Institutions for the Decades 1990-1999 and 2000-2009
SO AQUATIC MAMMALS
LA English
DT Article
DE Tursiops; neonate; survivability; monitoring; intervention
ID LACTATION
AB Animal managers from three institutions that hold Tursiops truncatus participated in a workshop directed at documenting survivability of Tursiops neonates (birth to 30 d of age) in their managed populations. Key information was generated for the period 1990 through 2009 for the three organizations. Included in the findings are (1) documentation of the total live births, total fatalities, and causal factors of neonate losses; (2) recommendations for optimizing animal management procedures through standardized monitoring and husbandry intervention techniques, resulting in the best possible survivability of neonates; and (3) comparison of neonate survivability between the years 1990 to 1999 (78.2% of live births) and 2000 to 2009 (90.6% of live births), the latter decade representing progressing improvements in survivability resulting from recommended animal management procedures.
C1 [Sweeney, Jay C.; Stone, Rae; Campbell, Michelle] Dolphin Quest Inc, San Diego, CA 92101 USA.
[McBain, Jim; St Leger, Judy] SeaWorld Pk & Entertainment, San Diego, CA 92109 USA.
[Xitco, Mark; Jensen, Eric; Ridgway, Sam] USN, Marine Mammal Program, Space & Naval Warfare Syst Ctr, Biosci Div, San Diego, CA 92152 USA.
RP Sweeney, JC (reprint author), Dolphin Quest Inc, 1880 Harbor Isl Dr, San Diego, CA 92101 USA.
EM jsweeney@dolphinquest.com
NR 7
TC 0
Z9 1
U1 0
U2 0
PU EUROPEAN ASSOC AQUATIC MAMMALS
PI MOLINE
PA C/O DR JEANETTE THOMAS, BIOLOGICAL SCIENCES, WESTERN ILLIONIS UNIV-QUAD
CITIES, 3561 60TH STREET, MOLINE, IL 61265 USA
SN 0167-5427
J9 AQUAT MAMM
JI Aquat. Mamm.
PY 2010
VL 36
IS 3
BP 248
EP 261
DI 10.1578/AM.36.3.2010.248
PG 14
WC Marine & Freshwater Biology; Zoology
SC Marine & Freshwater Biology; Zoology
GA 670UJ
UT WOS:000283452500004
ER
PT J
AU Zhang, X
Abraham, P
Mascarella, SW
Flippen-Anderson, J
Deschamps, JR
Carroll, FI
AF Zhang, Xing
Abraham, Philip
Mascarella, S. Wayne
Flippen-Anderson, Judith
Deschamps, Jeffrey R.
Carroll, F. Ivy
TI Enantioselective synthesis of strobamine and its analogues
SO ARKIVOC
LA English
DT Article
DE Strobamine; epi-strobamine; heterocycles
ID KNIGHTIA-STROBILINA; GAMMA-PYRANOTROPANES; TROPANE ALKALOIDS;
2-BENZYLTROPANES; CALEDONIA; PLANTS
AB (2S,5S,8R)-Strobamine (+)-1a was synthesized by adding cinnamoyl cyanide 6a to tropinone 3 lithium enolate generated by treatment of (S, S')-alpha, alpha-dimethyldibenzylamide with butyl lithium in the presence of lithium chloride to give (-)-chalcostrobamine (-)-7a, which yielded a one-to-one mixture of (+)-1a and its C-2 epimer (-)-2a on treatment with 2N sulfuric acid. Compounds (+)-1a and (-)-2a could be separated by column chromatography. (-)-Strobamine (-)-1a and (+)-2a were synthesized by a similar set of reactions using the tropinone 3 lithium enolate generated with butyl lithium in the presence of (R, R')-alpha, alpha'-dimethyldibenzylamide and lithium chloride. (+)- and (-)-p-Methylstrobamine (+)- and (-)-1b and (+)- and (-)-epi-p-methylstrobamine (+)- and (-)-2b were synthesized by a similar procedure. The absolute configuration of (+)-epi-p-methylstrobamine (+)-2b was determined by X-ray analysis to have the (2S,5R,8S) configuration.
C1 [Zhang, Xing; Abraham, Philip; Mascarella, S. Wayne; Carroll, F. Ivy] Res Triangle Inst, Ctr Organ & Med Chem, Res Triangle Pk, NC 27709 USA.
[Flippen-Anderson, Judith; Deschamps, Jeffrey R.] USN, Res Lab, Washington, DC 20375 USA.
RP Carroll, FI (reprint author), Res Triangle Inst, Ctr Organ & Med Chem, POB 12194, Res Triangle Pk, NC 27709 USA.
EM fic@rti.org
OI Deschamps, Jeffrey/0000-0001-5845-0010
FU National Institute on Drug Abuse [DA05477, Y1-DA6002]
FX This work was supported in part by the National Institute on Drug Abuse
grant number DA05477. Support for the X-ray crystallographic studies was
provided by the National Institute on Drug Abuse contract Y1-DA6002.
NR 7
TC 2
Z9 2
U1 0
U2 2
PU ARKAT USA INC
PI GAINESVILLE
PA C/O ALAN R KATRITZKY, UNIV FLORIDA, DEPT CHEMISTRY, PO BOX 117200,
GAINESVILLE, FL 32611 USA
SN 1551-7004
J9 ARKIVOC
JI Arkivoc
PY 2010
BP 96
EP 103
PN 4
PG 8
WC Chemistry, Organic
SC Chemistry
GA 703PP
UT WOS:000285991600009
ER
PT B
AU Philippon, MJ
Dewing, CB
Briggs, KK
AF Philippon, Marc J.
Dewing, Christopher B.
Briggs, Karen K.
BE Kelly, BT
Philippon, MJ
TI Arthroscopic Acetabular Labral Repair With Rim Trimming and Femoral
Head-Neck Osteoplasty
SO ARTHROSCOPIC TECHNIQUES OF THE HIP: A VISUAL GUIDE
SE Visual Arthroscopy Series
LA English
DT Article; Book Chapter
ID FINITE-ELEMENT MODEL; HIP ARTHROSCOPY; DIAGNOSIS; IMPINGEMENT; TEARS;
SEAL
C1 [Briggs, Karen K.] Steadman Hawkins Res Fdn, Vail, CO USA.
[Dewing, Christopher B.] USN, Med Ctr, Dept Orthoped Surg, San Diego, CA 92152 USA.
NR 16
TC 0
Z9 0
U1 0
U2 0
PU SLACK INC
PI THOROFARE
PA 6900 GROVE ROAD, THOROFARE, NJ 08086-9447 USA
BN 978-1-55642-886-9
J9 VIS ARTHROSC SER
PY 2010
BP 59
EP 66
PG 8
WC Orthopedics
SC Orthopedics
GA BMM92
UT WOS:000272863700005
ER
PT B
AU Philippon, MJ
Dewing, CB
Huang, M
Bortz, PS
AF Philippon, Marc J.
Dewing, Christopher B.
Huang, Michael
Bortz, Penny S.
BE Kelly, BT
Philippon, MJ
TI Arthroscopic Acetabular Labral Reconstruction Using Iliotibial Band
Autograft
SO ARTHROSCOPIC TECHNIQUES OF THE HIP: A VISUAL GUIDE
SE Visual Arthroscopy Series
LA English
DT Article; Book Chapter
ID FINITE-ELEMENT MODEL; HIP ARTHROSCOPY; DIAGNOSIS; IMPINGEMENT; TEARS;
SEAL
C1 [Dewing, Christopher B.] USN, Med Ctr, Dept Orthoped Surg, San Diego, CA 92152 USA.
[Huang, Michael] Rocky Mt Orthopaed Associates PC, Grand Junction, CO USA.
[Bortz, Penny S.] Steadman Hawkins Res Fdn, Vail, CO USA.
NR 16
TC 0
Z9 0
U1 0
U2 0
PU SLACK INC
PI THOROFARE
PA 6900 GROVE ROAD, THOROFARE, NJ 08086-9447 USA
BN 978-1-55642-886-9
J9 VIS ARTHROSC SER
PY 2010
BP 163
EP 170
PG 8
WC Orthopedics
SC Orthopedics
GA BMM92
UT WOS:000272863700013
ER
PT B
AU Lucas, GR
AF Lucas, George R.
BE Kassimeris, G
Buckley, J
TI "Forgetful Warriors": Neglected Lessons on Leadership from Plato's
Republic
SO ASHGATE RESEARCH COMPANION TO MODERN WARFARE
LA English
DT Article; Book Chapter
C1 [Lucas, George R.] US Naval Acad, Annapolis, MD 21402 USA.
[Lucas, George R.] French Mil Acad St Cyr, Ctr Eth, Guer, France.
RP Lucas, GR (reprint author), US Naval Acad, Annapolis, MD 21402 USA.
NR 11
TC 0
Z9 0
U1 0
U2 0
PU ASHGATE PUBLISHING LTD
PI ALDERSHOT
PA GOWER HOUSE, CROFT ROAD, ALDERSHOT GU11 3HR, ENGLAND
BN 978-0-7546-9177-8; 978-0-7546-7410-8
PY 2010
BP 329
EP 339
PG 11
WC International Relations; Political Science
SC International Relations; Government & Law
GA BA3RX
UT WOS:000334697000020
ER
PT J
AU Hafez, MM
AF Hafez, Mohammed M.
TI The Alchemy of Martyrdom: Jihadi Salafism and Debates over Suicide
Bombings in the Muslim World
SO ASIAN JOURNAL OF SOCIAL SCIENCE
LA English
DT Article
DE suicide bombings; suicide bombers; martyrdom; Jihadi Salafism
AB Suicide attacks by radical Islamists mainly target and harm their co-religionists. Whether in Iraq, Afghanistan or Pakistan, suicide bombers are increasingly directing their blows against Muslims, including non-combatants, they label apostates, infidels or collaborators with foreign powers. The culprits for this indiscriminate carnage are primarily radical Sunnis known as Jihadi Salafists. How could these Sunni radicals square their Islamic legitimacy with three clearly established prohibitions in Islam: Do not kill yourself, do not killing non-combatants, and do not kill fellow Muslims? Jihadi Salafists circumvent these commands by redefining the meaning of piety in Islam to frame their co-religionists as apostates and heretics outside the protective umbrella of Islam. They also give primacy to human intentionality in warfare to frame self-immolation as martyrdom, not suicide. Finally, they unearth rulings by medieval scholars that permit indiscriminate tactics during warfare to protect the collective interests of Muslims. The case of Al-Qaeda in Iraq and its indiscriminate suicide bombings illustrate these justifications.
C1 USN, Postgrad Sch, Monterey, CA 93943 USA.
RP Hafez, MM (reprint author), USN, Postgrad Sch, 1 Univ Circle, Monterey, CA 93943 USA.
EM mmhafez@nps.edu
NR 3
TC 3
Z9 3
U1 0
U2 11
PU BRILL ACADEMIC PUBLISHERS
PI LEIDEN
PA PLANTIJNSTRAAT 2, P O BOX 9000, 2300 PA LEIDEN, NETHERLANDS
SN 1568-4849
J9 ASIAN J SOC SCI
JI Asian J. Soc. Sci.
PY 2010
VL 38
IS 3
BP 364
EP 378
DI 10.1163/156853110X499927
PG 15
WC Area Studies; Social Sciences, Interdisciplinary
SC Area Studies; Social Sciences - Other Topics
GA 615GI
UT WOS:000279122100003
ER
PT B
AU Hamilton, LJ
Cowart, JS
Lee, JE
Amorosso, RE
AF Hamilton, Leonard J.
Cowart, Jim S.
Lee, Jasen E.
Amorosso, Ryan E.
GP ASME
TI THE EFFECTS OF INTAKE PLENUM VOLUME ON THE PERFORMANCE OF A SMALL
NATURALLY ASPIRATED RESTRICTED ENGINE
SO ASME INTERNAL COMBUSTION ENGINE DIVISION FALL TECHNICAL CONFERENCE 2009,
PROCEEDINGS
LA English
DT Proceedings Paper
CT ASME Internal-Combustion-Engine-Division Fall Technical Conference
CY SEP 27-30, 2009
CL Lucerne, SWITZERLAND
SP ASME, Internal Combust Engine Div
AB Intake tuning is a widely recognized method for optimizing the performance of a naturally aspirated engine for motorsports applications. Wave resonance and Helmholtz theories are useful for predicting the impact of intake runner length on engine performance. However, there is very little information in the literature regarding the effects of intake plenum volume. The goal of this study was to determine the effects of intake plenum volume on steady state and transient engine performance for a restricted naturally aspirated engine for Formula SAE (FSAE) vehicle use. Testing was conducted on a four cylinder 600 cc motorcycle engine fitted with a 20 mm restrictor in compliance with FSAE competition rules. Plenum sizes were varied from 2 to 10 times engine displacement (1.2 to 6.0 L) and engine speeds were varied from 3,000 to 12,500 RPM. Performance metrics including volumetric efficiency, torque and power were recorded at steady state conditions. Experimental results showed that engine performance increased modestly as plenum volume was increased from 2 to 8 times engine displacement (4.8L). Increasing plenum volume beyond 4.8L resulted in significant improvement in performance parameters. Overall, peak power was shown to increase from 54 kW to 63 kW over the range of plenums tested. Additionally, transient engine performance was evaluated using extremely fast (60 msec) throttle opening times for the full range of plenum sizes tested. In-cylinder pressure was used to calculate cycle-resolved gross indicated mean effective pressure (IMEPg) development during these transients. Interestingly, the cases with the largest plenum sizes only took 1 2 extra cycles (30 - 60 msec) to achieve maximum IMEPg levels when compared to the smaller volumes. In fact the differences were so minor that it would be doubtful that a driver would notice the lag. Additional metrics included time for the plenums to fill and an analysis of manifold absolute pressure (MAP) and peak in-cylinder pressure development during and after the throttle transient. Plenums below 4.8L completely filled even before the transient was completed.
C1 [Hamilton, Leonard J.; Cowart, Jim S.; Lee, Jasen E.; Amorosso, Ryan E.] USN Acad, Annapolis, MD 21402 USA.
RP Hamilton, LJ (reprint author), USN Acad, Annapolis, MD 21402 USA.
NR 8
TC 0
Z9 0
U1 0
U2 5
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4363-5
PY 2010
BP 513
EP 521
PG 9
WC Engineering, Mechanical
SC Engineering
GA BRL36
UT WOS:000283013000051
ER
PT B
AU Michopoulos, JG
Zaruba, GV
AF Michopoulos, J. G.
Zaruba, G. V.
GP ASME
TI A PORTABLE COMPUTATIONAL CLUSTER FOR MODELING AND SIMULATION
SO ASME INTERNATIONAL DESIGN ENGINEERING TECHNICAL CONFERENCES AND
COMPUTERS AND INFORMATION IN ENGINEERING CONFERENCE, PROCEEDINGS, VOL 2,
PTS A AND B
LA English
DT Proceedings Paper
CT ASME International Design Engineering Technical Conferences/Computers
and Information in Engineering Conference
CY AUG 30-SEP 02, 2009
CL San Diego, CA
SP ASME, Design Engn Div, ASME, Comp & Informat Engn Div
DE cluster; message passing interface; distributed memory; shared memory
fire dynamics
AB In the present paper we are describing the development of a portable computational cluster infrastructure based on Apple's Mac Mini systems The objective of this effort is to initiate the exploration of the feasibility for building and evaluating a low cost computational cluster system that could be portable due to the small form factor of the individual units while it could still provide considerable computational scalability Here we outline our experiences in the form of a how-to methodology for setting up a MAC OS X 104 cluster for Xgrid and three popular versions of Message Passing Interface (MPI), i e, OpenMPI, LAM-MPI, and MPICH2 Subsequently, we describe some performance measurements through the utilization of the Fire Dynamic Simulator (FDS) for two cases of reactive flow topologies Finally, Xgrid with OpenMPI throughput and latency performance results are presented and discussed
C1 [Michopoulos, J. G.] USN, Computat Multiphys Syst Lab, Ctr Computat Mat Sci, Res Lab, Washington, DC 20375 USA.
RP Michopoulos, JG (reprint author), USN, Computat Multiphys Syst Lab, Ctr Computat Mat Sci, Res Lab, Washington, DC 20375 USA.
RI Michopoulos, John/D-6704-2016
OI Michopoulos, John/0000-0001-7004-6838
NR 13
TC 0
Z9 0
U1 0
U2 0
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4899-9
PY 2010
BP 49
EP 54
PG 6
WC Computer Science, Information Systems; Engineering, Mechanical
SC Computer Science; Engineering
GA BSU94
UT WOS:000285850200007
ER
PT B
AU Michopoulos, JG
Iliopoulos, AP
AF Michopoulos, J. G.
Iliopoulos, A. P.
GP ASME
TI A COMPUTATIONAL WORKBENCH FOR REMOTE FULL FIELD 2D DISPLACEMENT AND
STRAIN MEASUREMENTS
SO ASME INTERNATIONAL DESIGN ENGINEERING TECHNICAL CONFERENCES AND
COMPUTERS AND INFORMATION IN ENGINEERING CONFERENCE, PROCEEDINGS, VOL 2,
PTS A AND B
LA English
DT Proceedings Paper
CT ASME International Design Engineering Technical Conferences/Computers
and Information in Engineering Conference
CY AUG 30-SEP 02, 2009
CL San Diego, CA
SP ASME, Design Engn Div, ASME, Computers & Info Engn Div
ID DIGITAL IMAGE CORRELATION; DEFORMATION FUNCTION
AB The present paper reports on the progress towards the development of a computational workbench infrastructure that implements the Mesh Free Random Grid Method (MFRGM) for the remote (non contact) measurement of displacement and strain fields The method is applicable to structures bounded by flat surfaces that deform under various mechanical and generalized loading conditions A brief description of MFRGM is followed by the description of the current prototype of a software workbench developed for the computational implementation of the algorithms involved with the analysis display and export of the experimental results associated with any specific applications of the method Displacement validation as well as two examples of its usage are also presented
C1 [Michopoulos, J. G.] USN, Ctr Computat Mat Sci, Computat Multiphys Syst Lab, Res Lab, Washington, DC 20375 USA.
RP Michopoulos, JG (reprint author), USN, Ctr Computat Mat Sci, Computat Multiphys Syst Lab, Res Lab, Code 6394, Washington, DC 20375 USA.
RI Michopoulos, John/D-6704-2016
OI Michopoulos, John/0000-0001-7004-6838
NR 27
TC 0
Z9 0
U1 0
U2 1
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4899-9
PY 2010
BP 55
EP 63
PG 9
WC Computer Science, Information Systems; Engineering, Mechanical
SC Computer Science; Engineering
GA BSU94
UT WOS:000285850200008
ER
PT B
AU Iliopoulos, AP
Michopoulos, JG
AF Iliopoulos, A. P.
Michopoulos, J. G.
GP ASME
TI EFFECTS OF ANISOTROPY ON THE PERFORMANCE SENSITIVITY OF THE MESH-FREE
RANDOM GRID METHOD FOR WHOLE FIELD STRAIN MEASUREMENT
SO ASME INTERNATIONAL DESIGN ENGINEERING TECHNICAL CONFERENCES AND
COMPUTERS AND INFORMATION IN ENGINEERING CONFERENCE, PROCEEDINGS, VOL 2,
PTS A AND B
LA English
DT Proceedings Paper
CT ASME International Design Engineering Technical Conferences/Computers
and Information in Engineering Conference
CY AUG 30-SEP 02, 2009
CL San Diego, CA
SP ASME, Design Engn Div, ASME, Computers & Info Engn Div
DE Whole field Strain Measurement; Digital Imaging; Displacement
Measurement; Simulation; Material Characterization; Anisotropic continua
ID DIGITAL IMAGE CORRELATION; DEFORMATION FUNCTION
AB The recently developed mesh-free random grid method (MFRGM) has been exhibiting very promising characteristics of accuracy, adaptability, implementation flexibility and efficiency These are essential features enabling material characterization methodologies that depend on the experimental measurement of displacement and strain fields The aim of the present paper is to present a sensitivity analysis that aids into determining the effects of the material or loading orientation of an anisotropic medium with an open hole and critical computational parameters characterizing the MFRGM in terms of its accuracy performance First a brief outline of the MFRGM is provided A sensitivity analysis based on the effect of the orientation angle of an anisotropic medium with an open hole is presented for a realistic choice of experimental (optical) characteristics Finally, the effects of the mean dot size and dot distance (that an essential experimental parameters of the method) on the strain fields, are presented
C1 [Iliopoulos, A. P.] USN, Sci Applicat Int Corp, Computat Multiphys Syst Lab, Res Lab, Washington, DC 20375 USA.
RP Iliopoulos, AP (reprint author), USN, Sci Applicat Int Corp, Computat Multiphys Syst Lab, Res Lab, Code 6394, Washington, DC 20375 USA.
RI Michopoulos, John/D-6704-2016
OI Michopoulos, John/0000-0001-7004-6838
NR 22
TC 0
Z9 0
U1 0
U2 0
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4899-9
PY 2010
BP 65
EP 74
PG 10
WC Computer Science, Information Systems; Engineering, Mechanical
SC Computer Science; Engineering
GA BSU94
UT WOS:000285850200009
ER
PT B
AU DeGiorgi, VG
Wiimmer, SA
AF DeGiorgi, V. G.
Wiimmer, S. A.
GP ASME
TI A PRELIMINARY INVESTIGATION INTO GEOMETRIC AND SPATIAL CHARACTERISTICS
OF INTERACTING FIELDS FOR SHIPBOARD CP SYSTEMS
SO ASME INTERNATIONAL DESIGN ENGINEERING TECHNICAL CONFERENCES AND
COMPUTERS AND INFORMATION IN ENGINEERING CONFERENCE, PROCEEDINGS, VOL 2,
PTS A AND B
LA English
DT Proceedings Paper
CT ASME International Design Engineering Technical Conferences/Computers
and Information in Engineering Conference
CY AUG 30-SEP 02, 2009
CL San Diego, CA
SP ASME, Design Engn Div, ASME, Computers & Info Engn Div
AB Electrical fields generated from cathodic protection systems occur not only on the structure's surface but in the surrounding electrolyte The value of off-board and on-board fields are determined by the combined effects of strength and spatial orientation of sources and sinks on the structure and in the surrounding region Typically shipboard ICCP system analysis, either computational or experimental, deals with a single ship far from any sources and sinks that are not directly attached to the ship structure In this work the authors use boundary element methods to generate preliminary analyses of the effects of a source in the surrounding media on both the calculated fields on the structure and the off-board fields measured near the structure This work is scoping analyses designed to help design experimental work investigating the effects of off-board sources
C1 [DeGiorgi, V. G.; Wiimmer, S. A.] USN, Res Lab, Washington, DC 20375 USA.
RP DeGiorgi, VG (reprint author), USN, Res Lab, Code 6350,4555 Overlook Ave SW, Washington, DC 20375 USA.
NR 14
TC 0
Z9 0
U1 0
U2 1
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4899-9
PY 2010
BP 177
EP 183
PG 7
WC Computer Science, Information Systems; Engineering, Mechanical
SC Computer Science; Engineering
GA BSU94
UT WOS:000285850200021
ER
PT B
AU Wimmer, SA
DeGiorgi, VG
Hogan, EA
AF Wimmer, Stephanie A.
DeGiorgi, Virginia G.
Hogan, Elizabeth A.
GP ASME
TI COMPUTATIONAL PREDICTION OF ELECTRIC FIELDS IN SHALLOW WATER TESTING
ENVIRONMENT
SO ASME INTERNATIONAL DESIGN ENGINEERING TECHNICAL CONFERENCES AND
COMPUTERS AND INFORMATION IN ENGINEERING CONFERENCE, PROCEEDINGS, VOL 2,
PTS A AND B
LA English
DT Proceedings Paper
CT ASME International Design Engineering Technical Conferences/Computers
and Information in Engineering Conference
CY AUG 30-SEP 02, 2009
CL San Diego, CA
SP ASME, Design Engn Div, ASME, Comp & Informat Engn Div
AB There has been an increased need for understanding of how ship's cathodic protection systems work in shallow water environment This is a result of the evolving role of the US Navy The existing cathodic protection system design process relies on experimental processes This paper investigates a proposed modification to a deep water experimental facility to allow for measurements of electrical fields, a pertinent design measurement, in shallow water conditions The modifications involve the insertion of a false bottom in the existing deep water tank The work presented here are a series of computational studies that establish that the insertion of a false bottom would provide an electric field environment that is equivalent to shallow water for the depths considered
C1 [Wimmer, Stephanie A.; DeGiorgi, Virginia G.; Hogan, Elizabeth A.] USN, Res Lab, Washington, DC 20375 USA.
RP Wimmer, SA (reprint author), USN, Res Lab, Washington, DC 20375 USA.
NR 21
TC 0
Z9 0
U1 1
U2 3
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4899-9
PY 2010
BP 185
EP 191
PG 7
WC Computer Science, Information Systems; Engineering, Mechanical
SC Computer Science; Engineering
GA BSU94
UT WOS:000285850200022
ER
PT B
AU Lambrakos, SG
Michopoulos, JG
AF Lambrakos, S. G.
Michopoulos, J. G.
GP ASME
TI EXTREME FILTERING OF RAPID ENERGY DEPOSITION AND ITS MULTISCALE
IMPLICATIONS
SO ASME INTERNATIONAL DESIGN ENGINEERING TECHNICAL CONFERENCES AND
COMPUTERS AND INFORMATION IN ENGINEERING CONFERENCE, PROCEEDINGS, VOL 2,
PTS A AND B
LA English
DT Proceedings Paper
CT ASME International Design Engineering Technical Conferences/Computers
and Information in Engineering Conference
CY AUG 30-SEP 02, 2009
CL San Diego, CA
SP ASME, Design Engn Div, ASME, Computers & Info Engn Div
DE multiscale; inverse problems; heat deposition; nonequilibrium;
filtering; Fourier transform
AB The present paper focuses on rapid energy deposition processes, where there is extremely strong filtering of spatial and temporal structure within the associated diffusion pattern This strong filtering tends to establish conditions where reconstruction of detailed features of the energy source using data-driven inverse analysis is not well posed These strong filtering conditions imply that information that is available concerning the coupling of energy into a spatial region of interest from the site of surface deposition will be difficult to correlate with experimental observations of the associated energy diffusion pattern The analysis and simulations imply that rapid energy deposition should be characterized by two distinctly separate scales for both spatial and temporal structures Accordingly, the inverse rapid energy deposition problem requires a formulation with respect to system parameterization that 1, in terms of two separate sets of parameters One represents the energy source characteristics on spatial and temporal scales commensurate with that of thermal diffusivity within the material, and the other represents energy source characteristics on spatial and temporal scales commensurate with those of surface phenomena
C1 [Lambrakos, S. G.; Michopoulos, J. G.] USN, Res Lab, Ctr Computat Mat Sci, Computat Multiphys Syst Lab, Washington, DC 20375 USA.
RP Lambrakos, SG (reprint author), USN, Res Lab, Ctr Computat Mat Sci, Computat Multiphys Syst Lab, Code 6394, Washington, DC 20375 USA.
RI Michopoulos, John/D-6704-2016
OI Michopoulos, John/0000-0001-7004-6838
NR 13
TC 0
Z9 0
U1 0
U2 0
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4899-9
PY 2010
BP 247
EP 253
PG 7
WC Computer Science, Information Systems; Engineering, Mechanical
SC Computer Science; Engineering
GA BSU94
UT WOS:000285850200029
ER
PT B
AU Michopoulos, JG
Iliopoulos, AP
Furukawa, T
AF Michopoulos, J. G.
Iliopoulos, A. P.
Furukawa, T.
GP ASME
TI ACCURACY OF INVERSE COMPOSITE LAMINATE CHARACTERIZATION VIA THE MESH
FREE RANDOM GRID METHOD
SO ASME INTERNATIONAL DESIGN ENGINEERING TECHNICAL CONFERENCES AND
COMPUTERS AND INFORMATION IN ENGINEERING CONFERENCE, PROCEEDINGS, VOL 2,
PTS A AND B
LA English
DT Proceedings Paper
CT ASME International Design Engineering Technical Conferences/Computers
and Information in Engineering Conference
CY AUG 30-SEP 02, 2009
CL San Diego, CA
SP ASME, Design Engn Div, ASME, Computers & Info Engn Div
ID DIGITAL IMAGE CORRELATION; DEFORMATION FUNCTION; MULTIAXIAL TESTS;
IDENTIFICATION; DESIGN
AB The present paper reports on the progress towards the evaluation of the Mesh Free Random Grid Method (MFRGM) for the inverse constitutive characterization of composite materials The method provides the capability for the remote (non contact) measurement of displacement and strain fields of structures bounded by flat surface, that deform under various mechanical and generalized loading conditions The known forward solution of an anisotropic plate with an open hole, loaded at infinity, is used to generate synthetic images MFRG The inverse problem for determining the constitutive parameters formulated directly on the generalized constitutive law Performance of the technique is evaluated by the usage of just one frame corresponding to one set of strain state for various amounts of noise The evaluation is repeated by utilizing frames corresponding to different rotations of the laminate relative to the loading direction Finally the exceedingly accurate behavior of the methodology is discussed
C1 [Michopoulos, J. G.] USN, Res Lab, Ctr Computat Mat Sci, Computat Multiphys Syst Lab, Washington, DC 20375 USA.
RP Michopoulos, JG (reprint author), USN, Res Lab, Ctr Computat Mat Sci, Computat Multiphys Syst Lab, Code 6394, Washington, DC 20375 USA.
RI Michopoulos, John/D-6704-2016
OI Michopoulos, John/0000-0001-7004-6838
NR 28
TC 0
Z9 0
U1 0
U2 0
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4899-9
PY 2010
BP 367
EP 374
PG 8
WC Computer Science, Information Systems; Engineering, Mechanical
SC Computer Science; Engineering
GA BSU94
UT WOS:000285850200043
ER
PT B
AU Kwon, YW
Schultz, WA
Loup, DC
Rasmussen, EA
AF Kwon, Y. W.
Schultz, W. A.
Loup, D. C.
Rasmussen, E. A.
BE Segall, A
TI EXPERIMENTAL STUDY OF MODE II FRACTURE OF HYBRID COMPOSITE AND
METAL-WIRE JOINTS
SO ASME PRESSURE VESSELS AND PIPING CONFERENCE 2009, VOL 3: DESIGN AND
ANALYSIS
LA English
DT Proceedings Paper
CT Pressure Vessels and Piping Conference of the
American-Society-of-Mechanical-Engineers
CY JUL 26-30, 2009
CL Prague, CZECH REPUBLIC
SP ASME, Pressure Vessels & Piping Div
AB In order to join a composite structure to a metallic structure, metal-wire mats were co-cured with composite laminas using the Vacuum Assisted Resin Transfer Molding (VARTM) technique. Then, interface fracture toughness was measured for Mode II fracture for various lay-up and interface conditions. The study included interfaces of metal-wire to composite, composite to composite, and metal-wire to metal-wire. In addition, the lay-up orientations of metal-wire mats were either 0 or 90 degrees. The study also examined the crack propagation from a composite to a metal/composite interface. During the test, the digital image correlation technique was applied to capture the strain field around the crack tip. The results suggested that a hybrid metal-wire/composite laminate would be effective to connect a composite structure to a metallic structure as long as some critical interface conditions were avoided.
C1 [Kwon, Y. W.; Schultz, W. A.] USN, Postgrad Sch, Mech & Astro Eng Dept, Monterey, CA 93943 USA.
RP Kwon, YW (reprint author), USN, Postgrad Sch, Mech & Astro Eng Dept, Monterey, CA 93943 USA.
NR 10
TC 0
Z9 0
U1 0
U2 1
PU AMER SOC MECHANICAL ENGINEERS
PI NEW YORK
PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA
BN 978-0-7918-4366-6
PY 2010
BP 351
EP 357
PG 7
WC Engineering, Mechanical
SC Engineering
GA BRF59
UT WOS:000282619600040
ER
PT J
AU Fridlund, M
Eiroa, C
Henning, T
Herbst, T
Lammer, H
Leger, A
Liseau, R
Paresce, F
Penny, A
Quirrenbach, A
Rottgering, H
Selsis, F
White, GJ
Absil, O
Defrere, D
Hanot, C
Stam, D
Schneider, J
Tinetti, G
Karlsson, A
Gondoin, P
den Hartog, R
D'Arcio, L
Stankov, AM
Kilter, M
Erd, C
Beichman, C
Coulter, D
Danchi, W
Devirian, M
Johnston, KJ
Lawson, P
Lay, OP
Lunine, J
Kaltenegger, L
AF Fridlund, Malcolm
Eiroa, Carlos
Henning, Thomas
Herbst, Tom
Lammer, Helmut
Leger, Alain
Liseau, Rene
Paresce, Francesco
Penny, Alan
Quirrenbach, Andreas
Rottgering, Huub
Selsis, Franck
White, Glenn J.
Absil, Olivier
Defrere, Denis
Hanot, C.
Stam, Daphne
Schneider, Jean
Tinetti, Giovanna
Karlsson, Anders
Gondoin, Phillipe
den Hartog, Roland
D'Arcio, Luigi
Stankov, Anna-Maria
Kilter, Mikael
Erd, Christian
Beichman, Charles
Coulter, Daniel
Danchi, William
Devirian, Michael
Johnston, Kenneth J.
Lawson, Peter
Lay, Oliver P.
Lunine, Jonathan
Kaltenegger, Lisa
TI The Search for Worlds Like Our Own
SO ASTROBIOLOGY
LA English
DT Article
DE Terrestrial exoplanets; Habitability; Planet-detection methods;
Bioastronomy
ID EXTRA-SOLAR PLANETS; GIANT PLANETS; NULLING INTERFEROMETER; DARWIN
PROJECT; COMPANION; MISSION; SYSTEMS; SPACE; STARS; DISK
AB The direct detection of Earth-like exoplanets orbiting nearby stars and the characterization of such planets particularly, their evolution, their atmospheres, and their ability to host life-constitute a significant problem. The quest for other worlds as abodes of life has been one of mankind's great questions for several millennia. For instance, as stated by Epicurus similar to 300 BC: "Other worlds, with plants and other living things, some of them similar and some of them different from ours, must exist.'' Demokritos from Abdera (460-370 BC), the man who invented the concept of indivisible small parts-atoms-also held the belief that other worlds exist around the stars and that some of these worlds may be inhabited by life-forms. The idea of the plurality of worlds and of life on them has since been held by scientists like Johannes Kepler and William Herschel, among many others. Here, one must also mention Giordano Bruno. Born in 1548, Bruno studied in France and came into contact with the teachings of Nicolas Copernicus. He wrote the book De l'Infinito, Universo e Mondi in 1584, in which he claimed that the Universe was infinite, that it contained an infinite amount of worlds like Earth, and that these worlds were inhabited by intelligent beings. At the time, this was extremely controversial, and eventually Bruno was arrested by the church and burned at the stake in Rome in 1600, as a heretic, for promoting this and other equally confrontational issues (though it is unclear exactly which idea was the one that ultimately brought him to his end).
In all the aforementioned cases, the opinions and results were arrived at through reasoning-not by experiment. We have only recently acquired the technological capability to observe planets orbiting stars other than our Sun; acquisition of this capability has been a remarkable feat of our time. We show in this introduction to the Habitability Primer that mankind is at the dawning of an age when, by way of the scientific method and 21(st)-century technology, we will be able to answer this fascinating controversial issue that has persisted for at least 2500 years.
C1 [Fridlund, Malcolm] European Space Agcy, European Space Res & Technol Ctr, Estec, Res & Sci Support Dept, NL-2200 AG Noordwijk, Netherlands.
[Eiroa, Carlos] Univ Autonoma Madrid, Madrid, Spain.
[Henning, Thomas; Herbst, Tom] Max Planck Inst Astron, D-69117 Heidelberg, Germany.
[Lammer, Helmut] Austrian Acad Sci, Space Res Inst, A-8010 Graz, Austria.
[Leger, Alain] Univ Paris 11, Orsay, France.
[Liseau, Rene] Chalmers, Dept Radio & Space Sci, Onsala, Sweden.
[Paresce, Francesco] Ist Nazl Astrofis, Rome, Italy.
[Penny, Alan] Royal Observ, Edinburgh, Blackford Hill, Scotland.
[Penny, Alan; White, Glenn J.] CCLRC Rutherford Appleton Lab, Space Sci & Technol Dept, Didcot, Oxon, England.
[Quirrenbach, Andreas] Landessternwarte Heidelberg, Heidelberg, Germany.
[Rottgering, Huub] Leiden Observ, NL-2300 RA Leiden, Netherlands.
[Selsis, Franck] Univ Bordeaux 1, Bordeaux, France.
[White, Glenn J.] Open Univ, Milton Keynes MK7 6AA, Bucks, England.
[Absil, Olivier] Observ Grenoble, Astrophys Lab, St Martin Dheres, France.
[Absil, Olivier; Defrere, Denis; Hanot, C.] Inst Astrophys & Geophys, Liege, Belgium.
[Stam, Daphne] SRON, Netherlands Inst Space Res, Utrecht, Netherlands.
[Schneider, Jean] Observ Paris, Lab Univers & Theories, Meudon, France.
[Tinetti, Giovanna] UCL, Dept Phys & Astron, London, England.
[Karlsson, Anders; Gondoin, Phillipe; den Hartog, Roland; D'Arcio, Luigi; Stankov, Anna-Maria; Kilter, Mikael; Erd, Christian] ESA, European Space Res & Technol Ctr, Payload & Adv Concepts Div, Noordwijk, Netherlands.
[Beichman, Charles] CALTECH, NASA, Exoplanet Sci Inst, Pasadena, CA 91125 USA.
[Beichman, Charles; Coulter, Daniel; Devirian, Michael; Lawson, Peter; Lay, Oliver P.] CALTECH, Jet Prop Lab, Pasadena, CA 91125 USA.
[Danchi, William] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Johnston, Kenneth J.] USN Observ, Washington, DC 20392 USA.
[Lunine, Jonathan] Univ Arizona, Lunar & Planetary Lab, Tucson, AZ 85721 USA.
[Kaltenegger, Lisa] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA.
RP Fridlund, M (reprint author), European Space Agcy, European Space Res & Technol Ctr, Estec, Res & Sci Support Dept, NL-2200 AG Noordwijk, Netherlands.
EM malcolm.fridlund@esa.int
OI Tinetti, Giovanna/0000-0001-6058-6654; Absil,
Olivier/0000-0002-4006-6237
NR 62
TC 10
Z9 10
U1 2
U2 11
PU MARY ANN LIEBERT INC
PI NEW ROCHELLE
PA 140 HUGUENOT STREET, 3RD FL, NEW ROCHELLE, NY 10801 USA
SN 1531-1074
J9 ASTROBIOLOGY
JI Astrobiology
PD JAN-FEB
PY 2010
VL 10
IS 1
BP 5
EP 17
DI 10.1089/ast.2009.0380
PG 13
WC Astronomy & Astrophysics; Biology; Geosciences, Multidisciplinary
SC Astronomy & Astrophysics; Life Sciences & Biomedicine - Other Topics;
Geology
GA 572NG
UT WOS:000275838900002
PM 20307179
ER
PT S
AU Hurni, MA
Sekhavat, P
Ross, IM
AF Hurni, Michael A.
Sekhavat, Pooya
Ross, I. Michael
BE Rao, AV
Lovell, TA
Chan, FK
Cangahuala, LA
TI AUTONOMOUS MULTI-ROVER TRAJECTORY PLANNING USING OPTIMAL CONTROL
TECHNIQUES
SO ASTRODYNAMICS 2009, VOL 135, PTS 1-3
SE Advances in the Astronautical Sciences
LA English
DT Proceedings Paper
CT AAS/AIAA Astrodynamics Specialist Conference
CY AUG 09-13, 2009
CL Pittsburgh, PA
SP Amer Astronaut Soc, Amer Inst Aeronaut & Astronaut
AB Future manned and robotic space missions call for autonomous coordination and control of planetary rovers. This paper presents the implementation of a pseudospectral (PS) optimal control-based algorithm for autonomous trajectory planning and control of several unmanned ground vehicles (UGV) with real-time information updates. The mission of the UGVs is to traverse from their initial start points and reach their targets in minimum time, with maximum robustness, while avoiding obstacles (static and dynamic) and each other. Control solutions are repeatedly recomputed and updated throughout the vehicles' missions. Simulation results illustrate the performance of the planner in various multi-rover scenarios.
C1 [Hurni, Michael A.; Sekhavat, Pooya; Ross, I. Michael] USN, Postgrad Sch, Dept Mech & Astronaut Engn, Monterey, CA 93943 USA.
RP Hurni, MA (reprint author), USN, Postgrad Sch, Dept Mech & Astronaut Engn, Monterey, CA 93943 USA.
EM hurni@juno.com; psekhava@nps.edu; imross@nps.edu
NR 22
TC 0
Z9 0
U1 1
U2 1
PU UNIVELT INC
PI SAN DIEGO
PA PO BOX 28130, SAN DIEGO, CA 92128 USA
SN 1081-6003
BN 978-0-87703-557-2
J9 ADV ASTRONAUT SCI
PY 2010
VL 135
BP 2113
EP 2132
PN 1-3
PG 20
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA BQA45
UT WOS:000280501900120
ER
PT B
AU Barrett, P
Berghea, C
Dieck, C
Evans, S
Poole, C
Veillette, D
AF Barrett, P.
Berghea, C.
Dieck, C.
Evans, S.
Poole, C.
Veillette, D.
BE Mizumoto, Y
Morita, KI
Ohishi, M
TI From Start to Finish: Python for Space Missions
SO ASTRONOMICAL DATA ANALYSIS SOFTWARE AND SYSTEMS XIX
SE Astronomical Society of the Pacific Conference Series
LA English
DT Proceedings Paper
CT 19th Annual Conference on Astronomical Data Analysis Software and
Systems
CY OCT 04-08, 2009
CL Sapporo, JAPAN
AB The software development process for many space observatories is often disjoint and inefficient due to the use of multiple languages during the different phases of mission development. Code and algorithms that are often developed using an interactive, array language during the pathfinding efforts of Phase A are often rewritten in a non-interactive, compiled language for use in the production code for Phase C. This approach leads to inefficiency in both development time and cost and can introduce errors during the rewriting process. Python is one programming language that can be used as a high-level, array language and as an efficient, production language. This paper shows how Python will be used during the different phases of development of the Joint Milli-Arcsecond Pathfinder Survey (JMAPS) space mission with an emphasis on code and algorithm reuse from one phase to the next.
C1 [Barrett, P.; Berghea, C.; Dieck, C.; Evans, S.; Poole, C.; Veillette, D.] USN Observ, Washington, DC 20392 USA.
RP Barrett, P (reprint author), USN Observ, Washington, DC 20392 USA.
NR 0
TC 0
Z9 0
U1 0
U2 0
PU ASTRONOMICAL SOC PACIFIC
PI SAN FRANCISCO
PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 USA
BN 978-1-58381-748-3
J9 ASTR SOC P
PY 2010
VL 434
BP 205
EP 208
PG 4
WC Astronomy & Astrophysics; Computer Science, Interdisciplinary
Applications
SC Astronomy & Astrophysics; Computer Science
GA BUU27
UT WOS:000290361300040
ER
PT J
AU Lazio, TJW
Carmichael, S
Clark, J
Elkins, E
Gudmundsen, P
Mott, Z
Szwajkowski, M
Hennig, LA
AF Lazio, T. Joseph W.
Carmichael, S.
Clark, J.
Elkins, E.
Gudmundsen, P.
Mott, Z.
Szwajkowski, M.
Hennig, L. A.
TI A BLIND SEARCH FOR MAGNETOSPHERIC EMISSIONS FROM PLANETARY COMPANIONS TO
NEARBY SOLAR-TYPE STARS
SO ASTRONOMICAL JOURNAL
LA English
DT Article
DE planetary systems
ID STELLAR WIND CONDITIONS; RADIOMETRIC BODES LAW; RADIO-EMISSION;
EXTRASOLAR PLANETS; COOL STARS; NSTARS PROJECT; MASS; DETECTABILITY;
SPECTROSCOPY; PREDICTIONS
AB This paper reports a blind search for magnetospheric emissions from planets around nearby stars. Young stars are likely to have much stronger stellar winds than the Sun, and because planetary magnetospheric emissions are powered by stellar winds, stronger stellar winds may enhance the radio luminosity of any orbiting planets. Using various stellar catalogs, we selected nearby stars (less than or similar to 30 pc) with relatively young age estimates (< 3 Gyr). We constructed different samples from the stellar catalogs, finding between 100 and several hundred stars. We stacked images from the 74 MHz (4 m wavelength) VLA Low-frequency Sky Survey, obtaining 3 sigma limits on planetary emission in the stacked images of between 10 and 33 mJy. These flux density limits correspond to average planetary luminosities less than 5-10 x 10(23) erg s(-1). Using recent models for the scaling of stellar wind velocity, density, and magnetic field with stellar age, we estimate scaling factors for the strength of stellar winds, relative to the Sun, in our samples. The typical kinetic energy carried by the stellar winds in our samples is 15-50 times larger than that of the Sun, and the typical magnetic energy is 5-10 times larger. If we assume that every star is orbited by a Jupiter-like planet with a luminosity larger than that of the Jovian decametric radiation by the above factors, our limits on planetary luminosities from the stacking analysis are likely to be a factor of 10-100 above what would be required to detect the planets in a statistical sense. Similar statistical analyses with observations by future instruments, such as the Low Frequency Array and the Long Wavelength Array, offer the promise of improvements by factors of 10-100.
C1 [Lazio, T. Joseph W.] USN, Res Lab, Washington, DC 20375 USA.
[Lazio, T. Joseph W.] NASA, Lunar Sci Inst, Ames Res Ctr, Moffett Field, CA 94035 USA.
[Carmichael, S.; Clark, J.; Elkins, E.; Gudmundsen, P.; Mott, Z.; Szwajkowski, M.; Hennig, L. A.] Thomas Jefferson High Sch Sci & Technol, Alexandria, VA 22312 USA.
RP Lazio, TJW (reprint author), USN, Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM Joseph.Lazio@nrl.navy.mil
FU 6.1 Base funding
FX We thank N. Kassim, S. Kulkarni, and B. Farrell for discussions which
spurred this analysis, A. Cohen for discussions on the VLSS, B. Erickson
and B. Slee for discussions about solar decameter- wavelength emissions,
and the referee for several comments that improved the presentation of
these results. This research has made use of the SIMBAD database,
operated at CDS, Strasbourg, France, and NASA's Astrophysics Data
System. Basic research in radio astronomy at the NRL is supported by 6.1
Base funding.
NR 51
TC 14
Z9 14
U1 0
U2 1
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 0004-6256
J9 ASTRON J
JI Astron. J.
PD JAN
PY 2010
VL 139
IS 1
BP 96
EP 101
DI 10.1088/0004-6256/139/1/96
PG 6
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 530RO
UT WOS:000272610200008
ER
PT J
AU Cocchi, M
Farinelli, R
Paizis, A
Titarchuk, L
AF Cocchi, M.
Farinelli, R.
Paizis, A.
Titarchuk, L.
TI Wide band observations of the X-ray burster GS 1826-238
SO ASTRONOMY & ASTROPHYSICS
LA English
DT Article
DE X-rays: general; X-rays: binaries; X-rays: individuals: GS 1826-238
ID COMPTONIZATION; GS-1826-238; EMISSION; BINARIES; SPECTRA
AB Context. GS 1826-238 is a well-studied X-ray bursting neutron star in a low mass binary system. Thermal Comptonisation by a hot electron cloud (kT(e) similar to 20 keV) is a widely accepted mechanism accounting for its high energy emission, while the nature of most of its soft X-ray output is not completely understood. A further low energy component is typically needed to model the observed spectra: pure blackbody and Comptonisation-modified blackbody radiation by a lower temperature (a few keV) electron plasma were suggested to explain the low energy data.
Aims. In order to better characterise the nature of the low energy emission and the bolometric output of the source, the steady emission of GS 1826-238 is studied by means of sensitive, broad band (X to soft Gamma-rays) measurements obtained by the INTEGRAL observatory.
Methods. In this data analysis, the newly developed, up-to-date Comptonisation model COMPTB is applied for the first time to study effectively the low-hard state variability of a low-luminosity neutron star in a low-mass X-ray binary system. Three joint ISGRI/JEM-X data sets (two from observations performed in 2003 and one from 2006) were analysed.
Results. We confirm that the 3-200 keV emission of GS 1826-238 is characterised by Comptonisation of soft seed photons by a hot electron plasma. A single spectral component is sufficient to model the observed spectra. At lower energies, no direct blackbody emission is observed and there is no need to postulate a low temperature Compton region. Compared to the 2003 measurements, the plasma temperature decreased from similar to 20 to similar to 14 keV in 2006, together with the seed photons temperature. The source intensity was also found to be similar to 30% lower in 2006, whilst the average recurrence frequency of the X-ray bursts significantly increased. Possible explanations for this apparent deviation from the typical limit-cycle behaviour of this burster are discussed.
C1 [Cocchi, M.] Ist Astrofis Spaziale & Fis Cosm, INAF, Sez Roma, I-00133 Rome, Italy.
[Farinelli, R.; Titarchuk, L.] Univ Ferrara, Dipartimento Fis, I-44100 Ferrara, Italy.
[Paizis, A.] Ist Astrofis Spaziale & Fis Cosm, INAF, Sez Milano, Milan, Italy.
[Titarchuk, L.] George Mason Univ, Ctr Earth Observing & Space Res, Fairfax, VA 22030 USA.
[Titarchuk, L.] USN, Res Lab, High Energy Space Environm Branch, Washington, DC 20375 USA.
[Titarchuk, L.] NASA, Goddard Space Flight Ctr, Gravitat Astrophys Lab, Greenbelt, MD 20771 USA.
RP Cocchi, M (reprint author), Ist Astrofis Spaziale & Fis Cosm, INAF, Sez Roma, Via Fosso del Cavaliere 100, I-00133 Rome, Italy.
EM Massimo.Cocchi@iasf-roma.inaf.it
OI Paizis, Adamantia/0000-0001-5067-0377
FU INAF [PRIN 2007]; Italian Space Agency [I/008/07/0]
FX This work has been supported by the grant from the INAF PRIN 2007 Bulk
motion Comptonization models in X-ray Binaries: from phenomenology to
physics, PI M. Cocchi. A. P. acknowledges the Italian Space Agency
financial and programmatic support via contract I/008/07/0. The authors
thank C. Ferrigno and A. Segreto for useful suggestions and tips.
NR 25
TC 4
Z9 4
U1 0
U2 1
PU EDP SCIENCES S A
PI LES ULIS CEDEX A
PA 17, AVE DU HOGGAR, PA COURTABOEUF, BP 112, F-91944 LES ULIS CEDEX A,
FRANCE
SN 0004-6361
J9 ASTRON ASTROPHYS
JI Astron. Astrophys.
PD JAN
PY 2010
VL 509
DI 10.1051/0004-6361/200912796
PG 5
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 550VM
UT WOS:000274159400014
ER
PT J
AU Feldman, U
Ralchenko, Y
Doschek, GA
AF Feldman, U.
Ralchenko, Yu.
Doschek, G. A.
TI THE EFFECT OF HOT CORONAL ELECTRONS ON EXTREME-ULTRAVIOLET SPECTRAL
LINES OF He II EMITTED BY SOLAR TRANSITION REGION PLASMAS
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE Sun: atmosphere; Sun: corona; Sun: transition region
ID HELIUM LINES; ANOMALOUS INTENSITIES; MAGNETIC-STRUCTURE; SUN;
IONIZATION; ATMOSPHERE; EMISSION; MODEL; CHROMOSPHERE; POPULATION
AB The cause of the lower intensities of extreme-ultraviolet (EUV) He II lines emitted by coronal hole (CH) plasmas compared with quiet Sun (QS) plasmas has been the subject of many studies dating back over half a century. In this paper, we study the effect of small amounts of "hot" electrons at coronal temperatures (T(e) = 1.4 x 10(6) K) on the intensities of EUV He II lines, as well as on the intensities of EUV lines of C III, C IV, O III, and O IV emitted by 1.5 x 10(4) K-1.5 x 10(5) K (4.2 <= log T(e) <= 5.2) plasmas in the QS. We show that although the influence of a fraction as small as 10(-4)-10(-3) of hot electrons on the intensities of the C and O lines is noticeable, the effect on the intensities of the He lines is much larger, to the extent that it could explain the excess brightness of He II lines emitted by QS regions relative to CH plasmas.
C1 [Feldman, U.] Artep Inc, Columbia, MD 21042 USA.
[Feldman, U.; Doschek, G. A.] USN, Res Lab, Div Space Sci, Washington, DC 20375 USA.
[Ralchenko, Yu.] NIST, Atom Phys Div, Gaithersburg, MD 20899 USA.
RP Feldman, U (reprint author), Artep Inc, 2922 Excelsior Spring Circle, Columbia, MD 21042 USA.
RI Ralchenko, Yuri/B-7687-2011; Ralchenko, Yuri/E-9297-2016
OI Ralchenko, Yuri/0000-0003-0083-9554
FU NASA; ONR/NRL 6.1; U.S. Department of Energy
FX Hinode is a Japanese mission developed and launched by ISAS/JAXA,
collaborating with NAOJ as domestic partner, and NASA ( USA) and STFC
(UK) as international partners. Scientific operation of the Hinode
mission is conducted by the Hinode Science Team organized at ISAS/JAXA.
This team mainly consists of scientists from institutes in the partner
countries. Support for the post-launch operation is provided by JAXA and
NAOJ, STFC, NASA, ESA (European Space Agency), and NSC (Norway). We are
grateful to the Hinode team for all their efforts in the design, build,
and operation of the mission. G.A.D. and U.F. acknowledge support from
the NASA Hinode program and from ONR/NRL 6.1 basic research funds. Yu.R.
was supported in part by the Office of Fusion Energy Sciences of the
U.S. Department of Energy.
NR 36
TC 5
Z9 5
U1 0
U2 3
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
J9 ASTROPHYS J
JI Astrophys. J.
PD JAN 1
PY 2010
VL 708
IS 1
BP 244
EP 252
DI 10.1088/0004-637X/708/1/244
PG 9
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 532ZM
UT WOS:000272790400022
ER
PT J
AU Berghea, CT
Dudik, RP
Weaver, KA
Kallman, TR
AF Berghea, C. T.
Dudik, R. P.
Weaver, K. A.
Kallman, T. R.
TI THE FIRST DETECTION OF [O IV] FROM AN ULTRALUMINOUS X-RAY SOURCE WITH
SPITZER. I. OBSERVATIONAL RESULTS FOR HOLMBERG II ULX
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE black hole physics; galaxies: individual (Holmberg II); infrared: ISM;
X-rays: binaries
ID NEARBY GALAXIES SURVEY; MASS BLACK-HOLES; ACTIVE GALACTIC NUCLEUS;
XMM-NEWTON OBSERVATIONS; INFRARED SPECTROGRAPH; EXTERNAL GALAXIES;
ACCRETION DISKS; SPACE-TELESCOPE; RADIO-EMISSION; SPECTROSCOPY
AB We present the first Spitzer Infrared Spectrograph observations of the [O IV] 25.89 mu m emission line detected from the ultraluminous X-ray source (ULX) in Holmberg II. This line is a well-established signature of high excitation, usually associated with active galactic nucleus (AGN). Its detection suggests that the ULX has a strong impact on the surrounding gas. A Spitzer high-resolution spectral map shows that the [O IV] is coincident with the X-ray position of the ULX. The ratios of the [O IV] to lower-ionization lines are similar to those observed in AGN, suggesting that a strong UV and X-ray source is responsible for the photoionization. The best XMM-Newton data are used to model the X-ray band which is then extrapolated into the UV. We perform infrared and ultraviolet photometry, and use previously published optical and radio data to construct the full spectral energy distribution (SED) for the ULX and its companion. The preferred model to describe the SED includes an accretion disk which dominates the soft X-rays but contributes little at UV and optical wavelengths. The optical counterpart is consistent with a B supergiant as previously suggested in other studies. The bolometric luminosity of the ULX suggests the presence of an intermediate-mass black hole with mass >85 M(circle dot) for sub-Eddington accretion or, alternatively, a stellar-mass black hole that is accreting at super-Eddington rates. In a follow-up second paper, we perform detailed photoionization modeling of the infrared lines in order to constrain the bolometric luminosity of the ULX.
C1 [Berghea, C. T.] Catholic Univ Amer, Dept Phys, Washington, DC 20064 USA.
[Berghea, C. T.; Dudik, R. P.] USN Observ, Washington, DC 20392 USA.
[Weaver, K. A.; Kallman, T. R.] NASA, Goddard Space Flight Ctr, High Energy Astrophys Lab, Greenbelt, MD 20771 USA.
RP Berghea, CT (reprint author), Catholic Univ Amer, Dept Phys, Washington, DC 20064 USA.
EM 79berghea@cardinalmail.cua.edu; rpdudik@usno.navy.mil
FU National Aeronautics and Space Administration
FX C. T. B. is grateful to Lisa Winter for allowing us to use the processed
XMM-Newton data. He thanks Richard Mushotzky, Lisa Winter, and Marcio
Melendez for helpful discussions, R. P. D. gratefully acknowledges
financial support from the NASA Graduate Student Research Program. 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 work is based on observations made with the Spitzer
Space Telescope, which is operated by the Jet Propulsion Laboratory,
California Institute of Technology under a contract with NASA. SMART was
developed by the IRS Team at Cornell University and is available through
the Spitzer Science Center at Caltech. We thank the referee for very
helpful and constructive comments that have significantly improved this
NR 60
TC 8
Z9 8
U1 0
U2 1
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
J9 ASTROPHYS J
JI Astrophys. J.
PD JAN 1
PY 2010
VL 708
IS 1
BP 354
EP 363
DI 10.1088/0004-637X/708/1/354
PG 10
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 532ZM
UT WOS:000272790400031
ER
PT J
AU Berghea, CT
Dudik, RP
Weaver, KA
Kallman, TR
AF Berghea, C. T.
Dudik, R. P.
Weaver, K. A.
Kallman, T. R.
TI THE FIRST DETECTION OF [O IV] FROM AN ULTRALUMINOUS X-RAY SOURCE WITH
SPITZER. II. EVIDENCE FOR HIGH LUMINOSITY IN HOLMBERG II ULX
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE black hole physics; galaxies: individual (Holmberg II); infrared: ISM;
X-rays: binaries
ID MASS BLACK-HOLES; NEARBY GALAXIES; RADIO-EMISSION; NEBULA; SPECTROSCOPY;
DIAGNOSTICS; REGIONS; MODELS
AB This is the second of two papers examining Spitzer Infrared Spectrograph observations of the ultraluminous X-ray source (ULX) in Holmberg II. Here, we perform detailed photoionization modeling of the infrared lines. Our analysis suggests that the luminosity and morphology of the [O IV] 25.89 mu m emission line is consistent with photoionization by the soft X-ray and far ultraviolet (FUV) radiation from the accretion disk of the binary system and inconsistent with narrow beaming. We show that the emission nebula is matter-bounded both in the line-of-sight direction and to the east, and probably radiation-bounded to the west. A bolometric luminosity in excess of 10(40) erg s(-1) would be needed to produce the measured [O IV] flux. We use modeling and previously published studies to conclude that shocks likely contribute very little, if at all, to the high-ionization line fluxes observed in the Holmberg II ULX. Additionally, we find that the spectral type of the companion star has a surprisingly strong effect on the predicted strength of the [O IV] emission. This finding could explain the origin of [O IV] in some starburst systems containing black hole binaries.
C1 [Berghea, C. T.] Catholic Univ Amer, Dept Phys, Washington, DC 20064 USA.
[Berghea, C. T.; Dudik, R. P.] USN Observ, Washington, DC 20392 USA.
[Weaver, K. A.; Kallman, T. R.] NASA, Goddard Space Flight Ctr, High Energy Astrophys Lab, Greenbelt, MD 20771 USA.
RP Berghea, CT (reprint author), Catholic Univ Amer, Dept Phys, Washington, DC 20064 USA.
EM 79berghea@cardinalmail.cua.edu; rpdudik@usno.navy.mil
FU NASA
FX C. T. B. thanks Richard Mushotzky and Lisa Winter for helpful
discussions, and Nicholas Sterling and Marcio Melendez for their help
with CLOUDY. R. P. D. gratefully acknowledges financial support from the
NASA Graduate Student Research Program. This work is based on
observations made with the Spitzer Space Telescope, which is operated by
the Jet Propulsion Laboratory, California Institute of Technology under
a contract with NASA. We thank the referee for very helpful and
constructive comments that have significantly improved this paper.
NR 39
TC 13
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U1 0
U2 1
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
J9 ASTROPHYS J
JI Astrophys. J.
PD JAN 1
PY 2010
VL 708
IS 1
BP 364
EP 374
DI 10.1088/0004-637X/708/1/364
PG 11
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 532ZM
UT WOS:000272790400032
ER
PT J
AU Crenshaw, DM
Schmitt, HR
Kraemer, SB
Mushotzky, RF
Dunn, JP
AF Crenshaw, D. M.
Schmitt, H. R.
Kraemer, S. B.
Mushotzky, R. F.
Dunn, J. P.
TI RADIAL VELOCITY OFFSETS DUE TO MASS OUTFLOWS AND EXTINCTION IN ACTIVE
GALACTIC NUCLEI
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE galaxies: active; galaxies: kinematics and dynamics; galaxies: Seyfert
ID NARROW-LINE REGION; QUASAR SDSS J092712.65+294344.0; SEYFERT-2 GALAXY
NGC-1068; EMISSION-LINE; BLACK-HOLE; PHYSICAL CONDITIONS; NGC 4151;
RESOLVED SPECTROSCOPY; DUST MORPHOLOGY; IONIZED-GAS
AB We present a study of the radial velocity offsets between narrow emission lines and host galaxy lines (stellar absorption and Hi 21 cm emission) in Seyfert galaxies with observed redshifts less than 0.043. We find that 35% of the Seyferts in the sample show [O III] emission lines with blueshifts with respect to their host galaxies exceeding 50 km s(-1), whereas only 6% show redshifts this large, in qualitative agreement with most previous studies. We also find that a greater percentage of Seyfert 1 galaxies show blueshifts than Seyfert 2 galaxies. Using Hubble Spce Talescope/Space Telescope Imaging Spectrograph spatially resolved spectra of the Seyfert 2 galaxy NGC 1068 and the Seyfert 1 galaxy NGC 4151, we generate geometric models of their narrow-line regions (NLRs) and inner galactic disks, and show how these models can explain the blueshifted [O III] emission lines in collapsed STIS spectra of these two Seyferts. We conclude that the combination of mass outflow of ionized gas in the NLR and extinction by dust in the inner disk (primarily in the form of dust spirals) is primarily responsible for the velocity offsets in Seyfert galaxies. More exotic explanations are not needed. We discuss the implications of this result for the velocity offsets found in higher redshift active galactic nuclei.
C1 [Crenshaw, D. M.] Georgia State Univ, Astron Off, Dept Phys & Astron, Atlanta, GA 30303 USA.
[Schmitt, H. R.] USN, Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
[Schmitt, H. R.] Interferometrics Inc, Herndon, VA 20171 USA.
[Kraemer, S. B.] Catholic Univ Amer, Dept Phys, Inst Astrophys & Computat Sci, Washington, DC 20064 USA.
[Mushotzky, R. F.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Dunn, J. P.] Virginia Tech, Dept Phys, Blacksburg, VA 24061 USA.
RP Crenshaw, DM (reprint author), Georgia State Univ, Astron Off, Dept Phys & Astron, 1 Pk Pl S SE,Suite 700, Atlanta, GA 30303 USA.
EM crenshaw@chara.gsu.edu
FU National Aeronautics and Space Administration
FX 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 NASA's Astrophysics Data
System Bibliographic Services.
NR 73
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U1 1
U2 3
PU IOP PUBLISHING LTD
PI BRISTOL
PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND
SN 0004-637X
J9 ASTROPHYS J
JI Astrophys. J.
PD JAN 1
PY 2010
VL 708
IS 1
BP 419
EP 426
DI 10.1088/0004-637X/708/1/419
PG 8
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 532ZM
UT WOS:000272790400037
ER
PT J
AU Muglach, K
Landi, E
Doschek, GA
AF Muglach, K.
Landi, E.
Doschek, G. A.
TI THE ELECTRON TEMPERATURE OF THE SOLAR TRANSITION REGION AS DERIVED FROM
EIS AND SUMER
SO ASTROPHYSICAL JOURNAL
LA English
DT Article
DE Sun: atmosphere; Sun: transition region
ID ULTRAVIOLET IMAGING SPECTROMETER; UNRESOLVED FINE-STRUCTURES;
R-CIRCLE-DOT; EMISSION-LINES; ATOMIC DATABASE; PLASMA DIAGNOSTICS;
IONIZATION BALANCE; SPECTRAL-LINES; CORONAL HOLE; B SATELLITE
AB We use UV and extreme-UV emission lines observed in quiet regions on the solar disk with the Solar Ultraviolet Measurements of Emitted Radiation (SUMER) instrument and the Extreme Ultraviolet Imaging Spectrometer (EIS) to determine the electron temperature in solar transition region plasmas. Prominent emission lines of O IV and O VI are present in the solar spectrum, and the measured intensity line ratios provide electron temperatures in the range of log T = 5.6-6.1. We find that the theoretical O IV and O VI ion formation temperatures are considerably lower than our derived temperatures. The line ratios expected from a plasma in ionization equilibrium are larger by a factor of about 2-5 than the measured line ratios. A careful cross-calibration of SUMER and EIS has been carried out, which excludes errors in the relative calibration of the two instruments. We checked for other instrumental and observational effects, as well as line blending, and can exclude them as a possible source of the discrepancy between theoretical and observed line ratios. Using a multi-thermal quiet-Sun differential emission measure changes the theoretical line ratio by up to 28% which is not sufficient as an explanation. We also explored additional excitation mechanisms. Photoexcitation from photospheric blackbody radiation, self-absorption, and recombination into excited levels cannot be a possible solution. Adding a second Maxwellian to simulate the presence of non-thermal, high-energy electrons in the plasma distribution of velocities also did not solve the discrepancy.
C1 [Muglach, K.; Landi, E.; Doschek, G. A.] USN, Res Lab, Washington, DC 20375 USA.
[Muglach, K.; Landi, E.] Artep Inc, Ellicott City, MD 21042 USA.
RP Muglach, K (reprint author), USN, Res Lab, Washington, DC 20375 USA.
RI Landi, Enrico/H-4493-2011
NR 39
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 JAN 1
PY 2010
VL 708
IS 1
BP 550
EP 559
DI 10.1088/0004-637X/708/1/550
PG 10
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 532ZM
UT WOS:000272790400050
ER
PT S
AU Toselli, I
Phillips, RL
Andrews, LC
Wayne, DT
AF Toselli, Italo
Phillips, Ronald L.
Andrews, Larry C.
Wayne, David T.
BE Korotkova, O
TI Impact of Ground Profile on scintillation: 50 km and 200 km slant paths
from Airplane to Antelope Peak
SO ATMOSPHERIC AND OCEANIC PROPAGATION OF ELECTROMAGNETIC WAVES IV
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Atmospheric and Oceanic Propagation of Electromagnetic
Waves IV
CY JAN 25-26, 2010
CL San Francisco, CA
SP SPIE
DE ground profile; atmospheric turbulence; Rytov variance; scintillation;
free space optical communications
AB The interest for free space laser beam propagation has recently increased due to several experiments. These experiments have shown that optical links through the atmosphere can be effectively established, regardless of the several deleterious negative effects of refractive index fluctuations. The most deleterious effect is the scintillation which, consequently, has been widely investigated. However, it has not been reported yet what influence a ground profile has on scintillation values. In this paper we show theoretical results of the ground impact on scintillation, for a laser link between aircraft and mountain top; Antelope peak Nevada. The link was investigated for a specific mountainous profile of the ground for path lengths of 50 km and 200 km. The theoretical analysis shows that, if a low value is assumed for the Rytov variance (weak turbulence condition), then the presence of high peaks or mountains along the propagation path could have a remarkable impact on scintillation because the scintillation saturation effects do not occur; if the Rytov variance assumes medium-high values (moderate-to-strong turbulence conditions), then the scintillation index will be close to the saturation regime. Therefore the scintillation will be slightly affected by the mountains along the path, both for the plane wave model and the Gaussian beam wave model.
C1 [Toselli, Italo] USN, Postgrad Sch, Monterey, CA 93943 USA.
RP Toselli, I (reprint author), USN, Postgrad Sch, 699 Dyer Rd, Monterey, CA 93943 USA.
NR 3
TC 1
Z9 1
U1 2
U2 2
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-7984-6
J9 PROC SPIE
PY 2010
VL 7588
AR 75880J
DI 10.1117/12.843830
PG 10
WC Meteorology & Atmospheric Sciences; Optics
SC Meteorology & Atmospheric Sciences; Optics
GA BSH12
UT WOS:000284396600016
ER
PT J
AU Rutherford, B
Dangelmayr, G
Persing, J
Schubert, WH
Montgomery, MT
AF Rutherford, B.
Dangelmayr, G.
Persing, J.
Schubert, W. H.
Montgomery, M. T.
TI Advective mixing in a nondivergent barotropic hurricane model
SO ATMOSPHERIC CHEMISTRY AND PHYSICS
LA English
DT Article
ID LAGRANGIAN COHERENT STRUCTURES; HIGH-RESOLUTION SIMULATION;
2-DIMENSIONAL TURBULENCE; TROPICAL CYCLONES; VELOCITY-FIELDS; POLAR
VORTEX; BONNIE 1998; MEAN-FLOW; EYE; EYEWALL
AB This paper studies Lagrangian mixing in a two-dimensional barotropic model for hurricane-like vortices. Since such flows show high shearing in the radial direction, particle separation across shear-lines is diagnosed through a Lagrangian field, referred to as R-field, that measures trajectory separation orthogonal to the Lagrangian velocity. The shear-lines are identified with the level-contours of another Lagrangian field, referred to as S-field, that measures the average shear-strength along a trajectory. Other fields used for model diagnostics are the Lagrangian field of finite-time Lyapunov exponents (FTLE-field), the Eulerian Q-field, and the angular velocity field. Because of the high shearing, the FTLE-field is not a suitable indicator for advective mixing, and in particular does not exhibit ridges marking the location of finite-time stable and unstable manifolds. The FTLE-field is similar in structure to the radial derivative of the angular velocity. In contrast, persisting ridges and valleys can be clearly recognized in the R-field, and their propagation speed indicates that transport across shear-lines is caused by Rossby waves. A radial mixing rate derived from the R-field gives a time-dependent measure of flux across the shear-lines. On the other hand, a measured mixing rate across the shear-lines, which counts trajectory crossings, confirms the results from the R-field mixing rate, and shows high mixing in the eyewall region after the formation of a polygonal eyewall, which continues until the vortex breaks down. The location of the R-field ridges elucidates the role of radial mixing for the interaction and breakdown of the mesovortices shown by the model.
C1 [Rutherford, B.; Dangelmayr, G.; Persing, J.] Colorado State Univ, Dept Math, Ft Collins, CO 80523 USA.
[Schubert, W. H.] Colorado State Univ, Dept Atmospher Sci, Ft Collins, CO 80523 USA.
[Montgomery, M. T.] USN, Postgrad Sch, Dept Meteorol, Monterey, CA 93943 USA.
RP Rutherford, B (reprint author), Colorado State Univ, Dept Math, Ft Collins, CO 80523 USA.
EM rutherfo@math.colostate.edu
FU National Science Foundation [ATM-0715426]
FX This work was supported by the National Science Foundation under NSF
Cooperative Agreement ATM-0715426. The authors thank Eric Hendricks,
Arthur Jamshidi, Kate Musgrave, Christopher Rozoff, Jonathan Vigh, and
Michael Riemer for their discussions. The authors would also like to
thank the anonymous referee and Tim Dunkerton for their helpful comments
and criticisms.
NR 37
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U1 0
U2 6
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1680-7316
J9 ATMOS CHEM PHYS
JI Atmos. Chem. Phys.
PY 2010
VL 10
IS 2
BP 475
EP 497
PG 23
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 548IK
UT WOS:000273954200013
ER
PT J
AU Fisher, JA
Jacob, DJ
Purdy, MT
Kopacz, M
Le Sager, P
Carouge, C
Holmes, CD
Yantosca, RM
Batchelor, RL
Strong, K
Diskin, GS
Fuelberg, HE
Holloway, JS
Hyer, EJ
McMillan, WW
Warner, J
Streets, DG
Zhang, Q
Wang, Y
Wu, S
AF Fisher, J. A.
Jacob, D. J.
Purdy, M. T.
Kopacz, M.
Le Sager, P.
Carouge, C.
Holmes, C. D.
Yantosca, R. M.
Batchelor, R. L.
Strong, K.
Diskin, G. S.
Fuelberg, H. E.
Holloway, J. S.
Hyer, E. J.
McMillan, W. W.
Warner, J.
Streets, D. G.
Zhang, Q.
Wang, Y.
Wu, S.
TI Source attribution and interannual variability of Arctic pollution in
spring constrained by aircraft (ARCTAS, ARCPAC) and satellite (AIRS)
observations of carbon monoxide
SO ATMOSPHERIC CHEMISTRY AND PHYSICS
LA English
DT Article
ID NORTH-AMERICA; SURFACE OBSERVATIONS; OZONE POLLUTION; ASIAN OUTFLOW;
BLACK CARBON; BERING-SEA; TRANSPORT; EMISSIONS; PACIFIC; CO
AB We use aircraft observations of carbon monoxide (CO) from the NASA ARCTAS and NOAA ARCPAC campaigns in April 2008 together with multiyear (2003-2008) CO satellite data from the AIRS instrument and a global chemical transport model (GEOS-Chem) to better understand the sources, transport, and interannual variability of pollution in the Arctic in spring. Model simulation of the aircraft data gives best estimates of CO emissions in April 2008 of 26 Tg month(-1) for Asian anthropogenic, 9.4 for European anthropogenic, 4.1 for North American anthropogenic, 15 for Russian biomass burning (anomalously large that year), and 23 for Southeast Asian biomass burning. We find that Asian anthropogenic emissions are the dominant source of Arctic CO pollution everywhere except in surface air where European anthropogenic emissions are of similar importance. Russian biomass burning makes little contribution to mean CO (reflecting the long CO lifetime) but makes a large contribution to CO variability in the form of combustion plumes. Analysis of two pollution events sampled by the aircraft demonstrates that AIRS can successfully observe pollution transport to the Arctic in the mid-troposphere. The 2003-2008 record of CO from AIRS shows that interannual variability averaged over the Arctic cap is very small. AIRS CO columns over Alaska are highly correlated with the Ocean Nino Index, suggesting a link between El Nino and Asian pollution transport to the Arctic. AIRS shows lower-than-average CO columns over Alaska during April 2008, despite the Russian fires, due to a weakened Aleutian Low hindering transport from Asia and associated with the moderate 2007-2008 La Nina. This suggests that Asian pollution influence over the Arctic may be particularly large under strong El Nino conditions.
C1 [Fisher, J. A.; Jacob, D. J.; Purdy, M. T.; Kopacz, M.; Le Sager, P.; Carouge, C.; Holmes, C. D.; Yantosca, R. M.] Harvard Univ, Dept Earth & Planetary Sci, Cambridge, MA 02138 USA.
[Fisher, J. A.; Jacob, D. J.; Purdy, M. T.; Kopacz, M.; Le Sager, P.; Carouge, C.; Holmes, C. D.; Yantosca, R. M.] Harvard Univ, Sch Engn & Appl Sci, Cambridge, MA 02138 USA.
[Batchelor, R. L.; Strong, K.] Univ Toronto, Dept Phys, Toronto, ON, Canada.
[Diskin, G. S.] NASA, Langley Res Ctr, Hampton, VA 23665 USA.
[Fuelberg, H. E.] Florida State Univ, Dept Meteorol, Tallahassee, FL 32306 USA.
[Holloway, J. S.] Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA.
[Holloway, J. S.] NOAA, Earth Syst Res Lab, Div Chem Sci, Boulder, CO USA.
[Hyer, E. J.] USN, Res Lab, UCAR Visiting Scientist Program, Monterey, CA USA.
[McMillan, W. W.] Univ Maryland Baltimore Cty, Dept Phys, Baltimore, MD 21228 USA.
[McMillan, W. W.; Warner, J.] Univ Maryland, Joint Ctr Earth Syst Technol, Baltimore, MD 21201 USA.
[Streets, D. G.; Zhang, Q.] Argonne Natl Lab, Decis & Informat Sci Div, Argonne, IL 60439 USA.
[Zhang, Q.] Tsinghua Univ, Ctr Earth Syst Sci, Beijing 100084, Peoples R China.
[Wang, Y.] Tsinghua Univ, Dept Environm Sci & Engn, Beijing 100084, Peoples R China.
[Wu, S.] Michigan Technol Univ, Dept Geol & Min Engn & Sci, Houghton, MI 49931 USA.
[Wu, S.] Michigan Technol Univ, Dept Civil & Environm Engn, Houghton, MI 49931 USA.
RP Fisher, JA (reprint author), Harvard Univ, Dept Earth & Planetary Sci, 20 Oxford St, Cambridge, MA 02138 USA.
EM jafisher@fas.harvard.edu
RI Hyer, Edward/E-7734-2011; Carouge, Claire/A-4755-2012; Strong,
Kimberly/D-2563-2012; Zhang, Qiang/D-9034-2012; Fisher,
Jenny/J-3979-2012; Holloway, John/F-9911-2012; Wang, Yuxuan/C-6902-2014;
Holmes, Christopher/C-9956-2014; Yantosca, Robert/F-7920-2014; Chem,
GEOS/C-5595-2014
OI Hyer, Edward/0000-0001-8636-2026; Carouge, Claire/0000-0002-0313-8385;
Streets, David/0000-0002-0223-1350; Fisher, Jenny/0000-0002-2921-1691;
Holloway, John/0000-0002-4585-9594; Wang, Yuxuan/0000-0002-1649-6974;
Holmes, Christopher/0000-0002-2727-0954; Yantosca,
Robert/0000-0003-3781-1870;
FU NASA; Canadian Foundation for Climate and Atmospheric Science; Canadian
Foundation for Innovation; Canadian Space Agency; Environment Canada,
Government of Canada; Ontario Research Fund; Natural Sciences and
Engineering Research Council; Northern Scientific Training Program;
Polar Continental Shelf Program; Atlantic, Nova Scotia and Ontario
Innovation Trusts; AIRS Project Office; National Defense Science and
Engineering
FX This work was supported by the NASA Tropospheric Chemistry Program and
the NASA Atmospheric Composition Modeling and Analysis Program. The FTS
measurements at Eureka were made as part of the Canadian Arctic ACE
validation campaigns and by the Canadian Network for the Detection of
Atmospheric Change, supported by the Canadian Foundation for Climate and
Atmospheric Science, Canadian Foundation for Innovation, Canadian Space
Agency, Environment Canada, Government of Canada International Polar
Year funding, Ontario Research Fund, Natural Sciences and Engineering
Research Council, Northern Scientific Training Program, Polar
Continental Shelf Program, and the Atlantic, Nova Scotia and Ontario
Innovation Trusts. WWM thanks the AIRS Project Office for support. JAF
acknowledges support from a National Defense Science and Engineering
Graduate Fellowship.
NR 81
TC 83
Z9 84
U1 2
U2 29
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1680-7316
EI 1680-7324
J9 ATMOS CHEM PHYS
JI Atmos. Chem. Phys.
PY 2010
VL 10
IS 3
BP 977
EP 996
PG 20
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 554BH
UT WOS:000274410000009
ER
PT J
AU Adhikary, B
Carmichael, GR
Kulkarni, S
Wei, C
Tang, Y
D'Allura, A
Mena-Carrasco, M
Streets, DG
Zhang, Q
Pierce, RB
Al-Saadi, JA
Emmons, LK
Pfister, GG
Avery, MA
Barrick, JD
Blake, DR
Brune, WH
Cohen, RC
Dibb, JE
Fried, A
Heikes, BG
Huey, LG
O'Sullivan, DW
Sachse, GW
Shetter, RE
Singh, HB
Campos, TL
Cantrell, CA
Flocke, FM
Dunlea, EJ
Jimenez, JL
Weinheimer, AJ
Crounse, JD
Wennberg, PO
Schauer, JJ
Stone, EA
Jaffe, DA
Reidmiller, DR
AF Adhikary, B.
Carmichael, G. R.
Kulkarni, S.
Wei, C.
Tang, Y.
D'Allura, A.
Mena-Carrasco, M.
Streets, D. G.
Zhang, Q.
Pierce, R. B.
Al-Saadi, J. A.
Emmons, L. K.
Pfister, G. G.
Avery, M. A.
Barrick, J. D.
Blake, D. R.
Brune, W. H.
Cohen, R. C.
Dibb, J. E.
Fried, A.
Heikes, B. G.
Huey, L. G.
O'Sullivan, D. W.
Sachse, G. W.
Shetter, R. E.
Singh, H. B.
Campos, T. L.
Cantrell, C. A.
Flocke, F. M.
Dunlea, E. J.
Jimenez, J. L.
Weinheimer, A. J.
Crounse, J. D.
Wennberg, P. O.
Schauer, J. J.
Stone, E. A.
Jaffe, D. A.
Reidmiller, D. R.
TI A regional scale modeling analysis of aerosol and trace gas
distributions over the eastern Pacific during the INTEX-B field campaign
SO ATMOSPHERIC CHEMISTRY AND PHYSICS
LA English
DT Article
ID LONG-RANGE TRANSPORT; NORTH-AMERICA; TRANSPACIFIC TRANSPORT; POLLUTION
TRANSPORT; ASIAN AEROSOLS; AIR-POLLUTION; MINERAL DUST; ORGANIC MASS;
EMISSIONS; AIRCRAFT
AB The Sulfur Transport and dEposition Model (STEM) is applied to the analysis of observations obtained during the Intercontinental Chemical Transport Experiment-Phase B (INTEX-B), conducted over the eastern Pacific Ocean during spring 2006. Predicted trace gas and aerosol distributions over the Pacific are presented and discussed in terms of transport and source region contributions. Trace species distributions show a strong west (high) to east (low) gradient, with the bulk of the pollutant transport over the central Pacific occurring between similar to 20 degrees N and 50 degrees N in the 2-6 km altitude range. These distributions are evaluated in the eastern Pacific by comparison with the NASA DC-8 and NSF/NCAR C-130 airborne measurements along with observations from the Mt. Bachelor (MBO) surface site. Thirty different meteorological, trace gas and aerosol parameters are compared. In general the meteorological fields are better predicted than gas phase species, which in turn are better predicted than aerosol quantities. PAN is found to be significantly overpredicted over the eastern Pacific, which is attributed to uncertainties in the chemical reaction mechanisms used in current atmospheric chemistry models in general and to the specifically high PAN production in the SAPRC-99 mechanism used in the regional model. A systematic underprediction of the elevated sulfate layer in the eastern Pacific observed by the C-130 is another issue that is identified and discussed. Results from source region tagged CO simulations are used to estimate how the different source regions around the Pacific contribute to the trace gas species distributions. During this period the largest contributions were from China and from fires in South/Southeast and North Asia. For the C-130 flights, which operated off the coast of the Northwest US, the regional CO contributions range as follows: China (35%), South/Southeast Asia fires (35%), North America anthropogenic (20%), and North Asia fires (10%). The transport of pollution into the western US is studied at MBO and a variety of events with elevated Asian dust, and periods with contributions from China and fires from both Asia and North America are discussed. The role of heterogeneous chemistry on the composition over the eastern Pacific is also studied. The impacts of heterogeneous reactions at specific times can be significant, increasing sulfate and nitrate aerosol production and reducing gas phase nitric acid levels appreciably (similar to 50%).
C1 [Adhikary, B.; Carmichael, G. R.; Kulkarni, S.; Wei, C.; Tang, Y.; D'Allura, A.; Mena-Carrasco, M.] Univ Iowa, Ctr Global & Reg Environm Res, Iowa City, IA 52242 USA.
[Adhikary, B.] Kathmandu Univ, Sch Engn, Dhulikhel, Kavre, Nepal.
[Streets, D. G.; Zhang, Q.] Argonne Natl Lab, Decis & Informat Sci Div, Argonne, IL 60439 USA.
[Pierce, R. B.; Al-Saadi, J. A.; Avery, M. A.; Barrick, J. D.; Sachse, G. W.] NASA, Langley Res Ctr, Hampton, VA 23665 USA.
[Emmons, L. K.; Pfister, G. G.; Fried, A.; Shetter, R. E.; Campos, T. L.; Cantrell, C. A.; Flocke, F. M.; Weinheimer, A. J.] Natl Ctr Atmospher Res, Boulder, CO 80307 USA.
[Blake, D. R.] Univ Calif Irvine, Dept Chem, Irvine, CA 92717 USA.
[Brune, W. H.] Penn State Univ, Dept Meteorol, University Pk, PA 16802 USA.
[Cohen, R. C.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.
[Dibb, J. E.] Univ New Hampshire, Inst Study Earth Oceans & Space, Durham, NH 03824 USA.
[Heikes, B. G.] Univ Rhode Isl, Grad Sch Oceanog, Narragansett, RI 02882 USA.
[Huey, L. G.] Georgia Inst Technol, Sch Earth & Atmospher Sci, Atlanta, GA 30332 USA.
[O'Sullivan, D. W.] USN Acad, Annapolis, MD 21402 USA.
[Singh, H. B.] NASA, Ames Res Ctr, Moffett Field, CA 94035 USA.
[Dunlea, E. J.; Jimenez, J. L.] Univ Colorado, Dept Chem & Biochem, Boulder, CO 80309 USA.
[Dunlea, E. J.; Jimenez, J. L.] Univ Colorado, CIRES, Boulder, CO 80309 USA.
[Crounse, J. D.; Wennberg, P. O.] CALTECH, Pasadena, CA 91125 USA.
[Schauer, J. J.; Stone, E. A.] Univ Wisconsin, Coll Engn, Madison, WI USA.
[Jaffe, D. A.] Univ Washington, Bothell, WA 98011 USA.
[Reidmiller, D. R.] Univ Washington, Dept Atmospher Sci, Seattle, WA 98195 USA.
RP Kulkarni, S (reprint author), Univ Iowa, Ctr Global & Reg Environm Res, Iowa City, IA 52242 USA.
EM sarika-kulkarni@uiowa.edu
RI Wennberg, Paul/A-5460-2012; Zhang, Qiang/D-9034-2012; Pfister,
Gabriele/A-9349-2008; Mena-Carrasco, Marcelo/B-8483-2012; Mena-Carrasco,
Marcelo/L-9730-2016; Emmons, Louisa/R-8922-2016; Crounse,
John/C-3700-2014; Jimenez, Jose/A-5294-2008; Cohen, Ronald/A-8842-2011;
wei, chao/E-4379-2011; Crounse, John/E-4622-2011; Pierce, Robert
Bradley/F-5609-2010
OI Streets, David/0000-0002-0223-1350; Emmons, Louisa/0000-0003-2325-6212;
Crounse, John/0000-0001-5443-729X; O'Sullivan,
Daniel/0000-0001-9104-5703; Jimenez, Jose/0000-0001-6203-1847; Cohen,
Ronald/0000-0001-6617-7691; Pierce, Robert Bradley/0000-0002-2767-1643
FU NASA [NNG04GC58G]; NSF [0613124]
FX We would like to thank the INTEX-B science team. This work was supported
by a NASA grants (NNG04GC58G and INTEX-B). The heterogeneous chemistry
portion was based on work done under a NSF grant (0613124). The authors
would also like to acknowledge NOAA and Atmospheric Brown Cloud project
for support of the Trinidad Head and Kathmandu measurements.
NR 55
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Z9 24
U1 0
U2 21
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1680-7316
EI 1680-7324
J9 ATMOS CHEM PHYS
JI Atmos. Chem. Phys.
PY 2010
VL 10
IS 5
BP 2091
EP 2115
DI 10.5194/acp-10-2091-2010
PG 25
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 568ER
UT WOS:000275505500002
ER
PT J
AU Riemer, M
Montgomery, MT
Nicholls, ME
AF Riemer, M.
Montgomery, M. T.
Nicholls, M. E.
TI A new paradigm for intensity modification of tropical cyclones:
thermodynamic impact of vertical wind shear on the inflow layer
SO ATMOSPHERIC CHEMISTRY AND PHYSICS
LA English
DT Article
ID HURRICANE-BONNIE 1998; HIGH-RESOLUTION SIMULATION; VORTEX ROSSBY-WAVES;
PART I; SPIRAL BANDS; POTENTIAL VORTICITY; DYNAMICS; EYEWALL; MOTION;
CORE
AB An important roadblock to improved intensity forecasts for tropical cyclones (TCs) is our incomplete understanding of the interaction of a TC with the environmental flow. In this paper we re-visit the canonical problem of a TC in vertical wind shear on an f-plane. A suite of numerical experiments is performed with intense TCs in moderate to strong vertical shear. We employ a set of simplified model physics - a simple bulk aerodynamic boundary layer scheme and "warm rain" microphysics - to foster better understanding of the dynamics and thermodynamics that govern the modification of TC intensity. In all experiments the TC is resilient to shear but significant differences in the intensity evolution occur.
The ventilation of the TC core with dry environmental air at mid-levels and the dilution of the upper-level warm core are two prevailing hypotheses for the adverse effect of vertical shear on storm intensity. Here we propose an alternative and arguably more effective mechanism how cooler and drier (lower theta(e)) air - "anti-fuel" for the TC power machine - can enter the core region of the TC. Strong and persistent, shear-induced downdrafts flux low theta(e) air into the boundary layer from above, significantly depressing the theta(e) values in the storm's inflow layer. Air with lower theta(e) values enters the eyewall updrafts, considerably reducing eyewall theta(e) values in the azimuthal mean. When viewed from the perspective of an idealised Carnot-cycle heat engine a decrease of storm intensity can thus be expected. Although the Carnot cycle model is - if at all - only valid for stationary and axisymmetric TCs, a close association of the downward transport of low theta(e) into the boundary layer and the intensity evolution offers further evidence in support of our hypothesis.
The downdrafts that flush the boundary layer with low theta(e) air are tied to a quasi-stationary, azimuthal wave number 1 convective asymmetry outside of the eyewall. This convective asymmetry and the associated downdraft pattern extends outwards to approximately 150 km. Downdrafts occur on the vortex scale and form when precipitation falls out from sloping updrafts and evaporates in the unsaturated air below. It is argued that, to zero order, the formation of the convective asymmetry is forced by frictional convergence associated with the azimuthal wave number 1 vortex Rossby wave structure of the outer-vortex tilt. This work points to an important connection between the thermodynamic impact in the near-core boundary layer and the asymmetric balanced dynamics governing the TC vortex evolution.
C1 [Riemer, M.; Montgomery, M. T.] USN, Postgrad Sch, Dept Meteorol, Monterey, CA 93943 USA.
[Montgomery, M. T.] NOAAs Hurricane Res Div, Miami, FL USA.
[Nicholls, M. E.] Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA.
RP Riemer, M (reprint author), USN, Postgrad Sch, Dept Meteorol, Monterey, CA 93943 USA.
EM mriemer@nps.edu
RI Riemer, Michael/C-5491-2009
FU National Research Council; NFS [ATM-0649946, ATM-0715426]; ONR
[N001408WR20129]; US Naval Postgraduate School in Monterey, California
FX We appreciate collaboration with Kerry Emanuel (MIT) and insightful
discussions with Jack Beven (NHC). This research was performed while the
first author held a National Research Council Research Associateship
Award at the Naval Postgraduate School. This work is supported by NFS
grants ATM-0649946 and ATM-0715426, the ONR grant N001408WR20129 and by
the US Naval Postgraduate School in Monterey, California. The comments
from John Molinari, one anonymous reviewer, and Brian Tang have helped
improve the presentation of our results.
NR 57
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U1 4
U2 14
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1680-7316
J9 ATMOS CHEM PHYS
JI Atmos. Chem. Phys.
PY 2010
VL 10
IS 7
BP 3163
EP 3188
PG 26
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 583HD
UT WOS:000276663600002
ER
PT J
AU Wyant, MC
Wood, R
Bretherton, CS
Mechoso, CR
Bacmeister, J
Balmaseda, MA
Barrett, B
Codron, F
Earnshaw, P
Fast, J
Hannay, C
Kaiser, JW
Kitagawa, H
Klein, SA
Kohler, M
Manganello, J
Pan, HL
Sun, F
Wang, S
Wang, Y
AF Wyant, M. C.
Wood, R.
Bretherton, C. S.
Mechoso, C. R.
Bacmeister, J.
Balmaseda, M. A.
Barrett, B.
Codron, F.
Earnshaw, P.
Fast, J.
Hannay, C.
Kaiser, J. W.
Kitagawa, H.
Klein, S. A.
Koehler, M.
Manganello, J.
Pan, H. -L.
Sun, F.
Wang, S.
Wang, Y.
TI The PreVOCA experiment: modeling the lower troposphere in the Southeast
Pacific
SO ATMOSPHERIC CHEMISTRY AND PHYSICS
LA English
DT Article
ID COMMUNITY ATMOSPHERE MODEL; GENERAL-CIRCULATION MODELS; LAYER MIXING
SCHEME; LARGE-SCALE MODELS; LIQUID WATER PATH; PART I; CLIMATE MODEL;
MICROPHYSICAL PROCESSES; BULK PARAMETERIZATION; OROGRAPHIC INFLUENCES
AB The Preliminary VOCALS Model Assessment (PreVOCA) aims to assess contemporary atmospheric modeling of the subtropical South East Pacific, with a particular focus on the clouds and the marine boundary layer (MBL). Models results from fourteen modeling centers were collected including operational forecast models, regional models, and global climate models for the month of October 2006. Forecast models and global climate models produced daily forecasts, while most regional models were run continuously during the study period, initialized and forced at the boundaries with global model analyses. Results are compared in the region from 40 degrees S to the equator and from 110 degrees W to 70 degrees W, corresponding to the Pacific coast of South America. Mean-monthly model surface winds agree well with QuikSCAT observed winds and models agree fairly well on mean weak large-scale subsidence in the region next to the coast. However they have greatly differing geographic patterns of mean cloud fraction with only a few models agreeing well with MODIS observations. Most models also underestimate the MBL depth by several hundred meters in the eastern part of the study region. The diurnal cycle of liquid water path is underestimated by most models at the 85 degrees W 20 degrees S stratus buoy site compared with satellite, consistent with previous modeling studies. The low cloud fraction is also underestimated during all parts of the diurnal cycle compared to surface-based climatologies. Most models qualitatively capture the MBL deepening around 15 October 2006 at the stratus buoy, associated with colder air at 700 hPa.
C1 [Wyant, M. C.; Wood, R.; Bretherton, C. S.] Univ Washington, Dept Atmospher Sci, Seattle, WA 98195 USA.
[Mechoso, C. R.; Wang, S.] Univ Calif Los Angeles, Dept Atmospher & Ocean Sci, Los Angeles, CA USA.
[Bacmeister, J.] NASA, Global Modeling & Assimiliat Off, Goddard Space Flight Ctr, Greenbelt, MD USA.
[Balmaseda, M. A.; Kaiser, J. W.; Koehler, M.] European Ctr Medium Range Weather Forecasts, Dept Res, Reading RG2 9AX, Berks, England.
[Barrett, B.] Univ Chile, Dept Geophys, Santiago, Chile.
[Codron, F.] Univ Paris 06, Meteorol Dynam Lab, Paris, France.
[Earnshaw, P.] Met Off, Exeter, Devon, England.
[Fast, J.] Pacific NW Natl Lab, Richland, WA 99352 USA.
[Hannay, C.] Natl Ctr Atmospher Res, Climate & Global Dynam Div, Boulder, CO 80307 USA.
[Kitagawa, H.] Japan Meteorol Agcy, Meteorol Coll, Tokyo, Japan.
[Klein, S. A.] Lawrence Livermore Natl Lab, Program Climate Model Diag & Intercomparison, Livermore, CA USA.
[Manganello, J.] Ctr Ocean Land Atmosphere Studies, Calverton, MD USA.
[Pan, H. -L.] Natl Ctr Environm Predict, Environm Modeling Ctr, Camp Springs, MD USA.
[Wang, S.] USN, Marine Meteorol Div, Res Lab, Monterey, CA USA.
[Wang, Y.] Univ Hawaii Manoa, Int Pacific Res Ctr, Sch Ocean & Earth Sci & Technol, Honolulu, HI 96822 USA.
RP Wyant, MC (reprint author), Univ Washington, Dept Atmospher Sci, Seattle, WA 98195 USA.
EM mwyant@atmos.washington.edu
RI Earnshaw, Paul/F-7148-2010; Earnshaw, Paul/A-3289-2009; Wood,
Robert/A-2989-2008; Kaiser, Johannes/A-7057-2012; Codron,
Francis/F-2719-2014; Klein, Stephen/H-4337-2016
OI Wood, Robert/0000-0002-1401-3828; Kaiser, Johannes/0000-0003-3696-9123;
Codron, Francis/0000-0001-7038-6189; Klein, Stephen/0000-0002-5476-858X
FU U.S. Department of Energy's Office of Science; US Department of Energy
by Lawrence Livermore National Laboratory [DE-AC52-07NA27344]; NASA
[NX06AB74G]; NSF [ATM0745702]; NOAA [NA070AR4310282]
FX Thanks to D. Painemal and P. Zuidema for providing MODIS retrieved
cloud-top heights. Also thanks to S. Park who provided his gridded EECRA
data. COSMIC data was provided by B. Kuo. Many thanks to L. O'Neill at
NRL who provided diurnal fits and monthly mean of LWP from satellite.
CALIPSO cloud top-height data was provided by D. Wu of the Ocean
University of China. Thanks also to Virendra Ghate for providing diurnal
cloud fraction data. QuikSCAT data are produced by Remote Sensing
Systems and sponsored by the NASA Ocean Vector Winds Science Team. S.
deSzoeke's archive of ship observations was very helpful to this work.
The ISCCP FD data were obtained from the ISCCP web site
http://isccp.giss.nasa.gov maintained at NASA GISS. S. A. Klein
acknowledges M. Zhao (GFDL) for performing GFDL model integrations, J.
Boyle (LLNL) for preparing analysis data, and the U.S. Department of
Energy's Office of Science Climate Change Prediction and Atmospheric
Radiation Measurement programs for financial support. The contribution
of S. A. Klein to this work is performed under the auspices of the US
Department of Energy by Lawrence Livermore National Laboratory under
contract DE-AC52-07NA27344. We acknowledge the support of NASA award No.
NX06AB74G for C. Hannay. This work was also supported by NSF grant
ATM0745702 and NOAA grant NA070AR4310282.
NR 65
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U1 0
U2 8
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1680-7316
EI 1680-7324
J9 ATMOS CHEM PHYS
JI Atmos. Chem. Phys.
PY 2010
VL 10
IS 10
BP 4757
EP 4774
DI 10.5194/acp-10-4757-2010
PG 18
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 603CE
UT WOS:000278184700022
ER
PT J
AU Emmons, LK
Apel, EC
Lamarque, JF
Hess, PG
Avery, M
Blake, D
Brune, W
Campos, T
Crawford, J
DeCarlo, PF
Hall, S
Heikes, B
Holloway, J
Jimenez, JL
Knapp, DJ
Kok, G
Mena-Carrasco, M
Olson, J
O'Sullivan, D
Sachse, G
Walega, J
Weibring, P
Weinheimer, A
Wiedinmyer, C
AF Emmons, L. K.
Apel, E. C.
Lamarque, J. -F.
Hess, P. G.
Avery, M.
Blake, D.
Brune, W.
Campos, T.
Crawford, J.
DeCarlo, P. F.
Hall, S.
Heikes, B.
Holloway, J.
Jimenez, J. L.
Knapp, D. J.
Kok, G.
Mena-Carrasco, M.
Olson, J.
O'Sullivan, D.
Sachse, G.
Walega, J.
Weibring, P.
Weinheimer, A.
Wiedinmyer, C.
TI Impact of Mexico City emissions on regional air quality from MOZART-4
simulations
SO ATMOSPHERIC CHEMISTRY AND PHYSICS
LA English
DT Article
ID VOLATILE ORGANIC-COMPOUNDS; AEROSOL MASS-SPECTROMETRY; MILAGRO FIELD
CAMPAIGN; URBAN SUPERSITE T0; HIGH-RESOLUTION; INTEX-B; SOURCE
APPORTIONMENT; METROPOLITAN-AREA; FLUX MEASUREMENTS; OZONE PRODUCTION
AB An extensive set of measurements was made in and around Mexico City as part of the MILAGRO (Megacity Initiative: Local and Global Research Observations) experiments in March 2006. Simulations with the Model for Ozone and Related Chemical Tracers, version 4 (MOZART-4), a global chemical transport model, have been used to provide a regional context for these observations and assist in their interpretation. These MOZART-4 simulations reproduce the aircraft observations generally well, but some differences in the modeled volatile organic compounds (VOCs) from the observations result from incorrect VOC speciation assumed for the emission inventories. The different types of CO sources represented in the model have been "tagged" to quantify the contributions of regions outside Mexico, as well as the various emissions sectors within Mexico, to the regional air quality of Mexico. This analysis indicates open fires have some, but not a dominant, impact on the atmospheric composition in the region around Mexico City when averaged over the month. However, considerable variation in the fire contribution (2-15% of total CO) is seen during the month. The transport and photochemical aging of Mexico City emissions were studied using tags of CO emissions for each day, showing that typically the air downwind of Mexico City was a combination of many ages. Ozone production in MOZART-4 is shown to agree well with the net production rates from box model calculations constrained by the MILAGRO aircraft measurements. Ozone production efficiency derived from the ratio of O-x to NOz is higher in MOZART-4 than in the observations for moderately polluted air. OH reactivity determined from the MOZART-4 results shows the same increase in relative importance of oxygenated VOCs downwind of Mexico City as the reactivity inferred from the observations. The amount of ozone produced by emissions from Mexico City and surrounding areas has been quantified in the model by tracking NO emissions, showing little influence beyond Mexico's borders, and also relatively minor influence from fire emissions on the monthly average tropospheric ozone column.
C1 [Emmons, L. K.; Apel, E. C.; Lamarque, J. -F.; Hess, P. G.; Campos, T.; Hall, S.; Knapp, D. J.; Walega, J.; Weibring, P.; Weinheimer, A.; Wiedinmyer, C.] Natl Ctr Atmospher Res, Boulder, CO 80307 USA.
[Avery, M.; Crawford, J.; Olson, J.; Sachse, G.] NASA, Langley Res Ctr, Hampton, VA 23665 USA.
[Blake, D.] Univ Calif Irvine, Dept Chem, Irvine, CA 92717 USA.
[Brune, W.] Penn State Univ, Dept Meteorol, University Pk, PA 16802 USA.
[DeCarlo, P. F.; Jimenez, J. L.] Univ Colorado, Dept Chem & Biochem, Boulder, CO 80309 USA.
[Heikes, B.] Univ Rhode Isl, Grad Sch Oceanog, Narragansett, RI 02882 USA.
[Holloway, J.] NOAA, Earth Syst Res Lab, Boulder, CO USA.
[Holloway, J.] Univ Colorado, Cooperat Inst Res Environm Sci, Boulder, CO 80309 USA.
[Kok, G.] Droplet Measurement Technol, Boulder, CO USA.
[Mena-Carrasco, M.] Univ Iowa, Iowa City, IA 52242 USA.
[O'Sullivan, D.] USN Acad, Dept Chem, Annapolis, MD 21402 USA.
RP Emmons, LK (reprint author), Natl Ctr Atmospher Res, POB 3000, Boulder, CO 80307 USA.
EM emmons@ucar.edu
RI Jimenez, Jose/A-5294-2008; DeCarlo, Peter/B-2118-2008; Lamarque,
Jean-Francois/L-2313-2014; Hess, Peter/M-3145-2015; Mena-Carrasco,
Marcelo/L-9730-2016; Emmons, Louisa/R-8922-2016; Wiedinmyer,
Christine/E-2049-2013; Manager, CSD Publications/B-2789-2015; Holloway,
John/F-9911-2012; Pfister, Gabriele/A-9349-2008; Crawford,
James/L-6632-2013; Mena-Carrasco, Marcelo/B-8483-2012
OI Jimenez, Jose/0000-0001-6203-1847; DeCarlo, Peter/0000-0001-6385-7149;
Lamarque, Jean-Francois/0000-0002-4225-5074; Hess,
Peter/0000-0003-2439-3796; Emmons, Louisa/0000-0003-2325-6212;
O'Sullivan, Daniel/0000-0001-9104-5703; Holloway,
John/0000-0002-4585-9594; Crawford, James/0000-0002-6982-0934;
FU National Aeronautics and Space Administration [NNG06GB27G]; NSF
[ATM-0449815]; NOAA [NA08OAR4310565]
FX The authors gratefully acknowledge all of the efforts of the Science
Teams of the MILAGRO experiments in producing the comprehensive data
sets of atmospheric composition in and around Mexico City. The helpful
and thorough comments of two anonymous reviewers are greatly
appreciated. This material is based upon work supported by the National
Aeronautics and Space Administration under Contract No. NNG06GB27G
issued by the Tropospheric Chemistry Program. PFD and JLJ were supported
by NSF ATM-0449815 and NOAA NA08OAR4310565. The National Center for
Atmospheric Research is sponsored by the National Science Foundation.
NR 62
TC 29
Z9 29
U1 2
U2 31
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1680-7316
EI 1680-7324
J9 ATMOS CHEM PHYS
JI Atmos. Chem. Phys.
PY 2010
VL 10
IS 13
BP 6195
EP 6212
DI 10.5194/acp-10-6195-2010
PG 18
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 624VY
UT WOS:000279851400029
ER
PT J
AU Guan, H
Esswein, R
Lopez, J
Bergstrom, R
Warnock, A
Follette-Cook, M
Fromm, M
Iraci, LT
AF Guan, H.
Esswein, R.
Lopez, J.
Bergstrom, R.
Warnock, A.
Follette-Cook, M.
Fromm, M.
Iraci, L. T.
TI A multi-decadal history of biomass burning plume heights identified
using aerosol index measurements
SO ATMOSPHERIC CHEMISTRY AND PHYSICS
LA English
DT Article
ID BOREAL FOREST-FIRE; SMOKE INJECTION; LOWER STRATOSPHERE;
OPTICAL-PROPERTIES; NORTH-AMERICA; TRANSPORT; CARBON; SENSITIVITY;
EMISSIONS; AFRICA
AB We have quantified the relationship between Aerosol Index (AI) measurements and plume height for young biomass burning plumes using coincident Ozone Monitoring Instrument (OMI) and Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) measurements. This linear relationship allows the determination of high-altitude plumes wherever AI data are available, and it provides a data set for validating global fire plume heights in chemistry transport models. We find that all plumes detected from June 2006 to February 2009 with an AI value >= 9 are located at altitudes higher than 5 km. Older high-altitude plumes have lower AI values than young plumes at similar altitudes. We have examined available AI data from the OMI and TOMS instruments (1978-2009) and find that large AI plumes occur more frequently over North America than over Australia or Russia/Northeast Asia. According to the derived relationship, during this time interval, 181 plumes, in various stages of their evolution, reached altitudes above 8 km.
C1 [Guan, H.; Esswein, R.; Lopez, J.; Bergstrom, R.] Bay Area Environm Res Inst, Sonoma, CA USA.
[Guan, H.; Esswein, R.; Lopez, J.; Bergstrom, R.; Iraci, L. T.] NASA, Ames Res Ctr, Moffett Field, CA 94035 USA.
[Warnock, A.] Univ Michigan, Ann Arbor, MI 48109 USA.
[Follette-Cook, M.; Fromm, M.] USN, Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
RP Guan, H (reprint author), Bay Area Environm Res Inst, Sonoma, CA USA.
EM hong.guan-1@nasa.gov
RI Fromm, Michael/F-4639-2010
NR 54
TC 30
Z9 30
U1 0
U2 15
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1680-7316
EI 1680-7324
J9 ATMOS CHEM PHYS
JI Atmos. Chem. Phys.
PY 2010
VL 10
IS 14
BP 6461
EP 6469
DI 10.5194/acp-10-6461-2010
PG 9
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 633PL
UT WOS:000280515600001
ER
PT J
AU Rutherford, B
Dangelmayr, G
Persing, J
Kirby, M
Montgomery, MT
AF Rutherford, B.
Dangelmayr, G.
Persing, J.
Kirby, M.
Montgomery, M. T.
TI Lagrangian mixing in an axisymmetric hurricane model
SO ATMOSPHERIC CHEMISTRY AND PHYSICS
LA English
DT Article
ID COHERENT STRUCTURES; LYAPUNOV EXPONENTS; TROPICAL CYCLONES;
VELOCITY-FIELDS; FLUID-FLOWS; EYE; EYEWALL; THERMODYNAMICS; SIMULATION;
DISPERSION
AB This paper discusses the extension of established Lagrangian mixing measures to make them applicable to data extracted from a 2-D axisymmetric hurricane simulation. Because of the non-steady and unbounded characteristics of the simulation, the previous measures are extended to a moving frame approach to create time-dependent mixing rates that are dependent upon the initial time of particle integration, and are computed for nonlocal regions. The global measures of mixing derived from finite-time Lyapunov exponents, relative dispersion, and a measured mixing rate are applied to distinct regions representing different characteristic feautures within the model. It is shown that these time-dependent mixing rates exhibit correlations with maximal tangential winds during a quasi-steady state, establishing a connection between mixing and hurricane intensity.
C1 [Rutherford, B.; Dangelmayr, G.; Persing, J.; Kirby, M.] Colorado State Univ, Dept Math, Ft Collins, CO 80523 USA.
[Montgomery, M. T.] USN, Postgrad Sch, Dept Meteorol, Monterey, CA 93943 USA.
RP Rutherford, B (reprint author), Colorado State Univ, Dept Math, Ft Collins, CO 80523 USA.
EM rutherfo@math.colostate.edu
NR 36
TC 6
Z9 6
U1 1
U2 4
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1680-7316
J9 ATMOS CHEM PHYS
JI Atmos. Chem. Phys.
PY 2010
VL 10
IS 14
BP 6777
EP 6791
DI 10.5194/acp-10-6777-2010
PG 15
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 633PL
UT WOS:000280515600026
ER
PT J
AU Hegg, DA
Covert, DS
Jonsson, HH
Woods, RK
AF Hegg, D. A.
Covert, D. S.
Jonsson, H. H.
Woods, R. K.
TI The contribution of anthropogenic aerosols to aerosol light-scattering
and CCN activity in the California coastal zone
SO ATMOSPHERIC CHEMISTRY AND PHYSICS
LA English
DT Article
ID POSITIVE MATRIX FACTORIZATION; MULTIVARIATE RECEPTOR MODELS; CLOUD
CONDENSATION NUCLEI; TROPOSPHERIC AEROSOL; MARINE STRATOCUMULUS;
PARTICLE-SIZE; ACE-ASIA; PM2.5; HYGROSCOPICITY; DISTRIBUTIONS
AB Aircraft-based measurements of aerosol light-scattering coefficient, cloud condensation nuclei (CCN) measured directly or by proxy, and aerosol chemical composition are reported for three different years in the region of the large stratocumulus deck off the California coast. Receptor modeling is used to differentiate the contributions of the main aerosol sources to the light scattering and CCN activity. The contribution of anthropogenic sources to the two climatically important aerosol parameters (for direct and indirect forcing) varied from year to year but, on average, was found to be 67% in the case of CCN concentration and 57% in the case of light-scattering coefficient.
C1 [Hegg, D. A.; Covert, D. S.] Univ Washington, Dept Atmospher Sci, Seattle, WA 98195 USA.
[Jonsson, H. H.; Woods, R. K.] USN, Postgrad Sch, Dept Meteorol, Monterey, CA 93943 USA.
RP Hegg, DA (reprint author), Univ Washington, Dept Atmospher Sci, Seattle, WA 98195 USA.
EM deanhegg@atmos.washington.edu
FU ONR [N00014-07-1-0277]
FX This research was supported by ONR grant N00014-07-1-0277. The authors
wish to thank G. Buzorius for his careful calibration and maintenance of
the PCASP and Tim Larson for many valuable discussions. Additionally, we
thank three anonymous reviewers for their informed and valuable
comments. Back trajectories used in this study were calculated with
HYSPLIT-IV (HYbrid Single-Particle Lagrangian Integrated Trajectory)
Model, 1997. Web address: http://www.arl.noaa.gov/ready/hysplit4.html,
NOAA Air Resources Laboratory, Silver Spring, MD.
NR 41
TC 7
Z9 7
U1 1
U2 10
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1680-7316
J9 ATMOS CHEM PHYS
JI Atmos. Chem. Phys.
PY 2010
VL 10
IS 15
BP 7341
EP 7351
DI 10.5194/acp-10-7341-2010
PG 11
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 637VV
UT WOS:000280847700024
ER
PT J
AU Montgomery, MT
Lussier, LL
Moore, RW
Wang, Z
AF Montgomery, M. T.
Lussier, L. L., III
Moore, R. W.
Wang, Z.
TI The genesis of Typhoon Nuri as observed during the Tropical Cyclone
Structure 2008 (TCS-08) field experiment - Part 1: The role of the
easterly wave critical layer
SO ATMOSPHERIC CHEMISTRY AND PHYSICS
LA English
DT Article
ID WESTERN NORTH PACIFIC; UPPER TROPOSPHERIC TROUGH; VERTICAL SHEAR;
CYCLOGENESIS; VORTEX; EVOLUTION; MONSOON; ITCZ; DISTURBANCES; ALIGNMENT
AB An observational and real-time model forecast study of the genesis of Typhoon Nuri during the Tropical Cyclone Structure 2008 (TCS-08) field campaign in the western North Pacific sector is presented. Analysis and observational data show that the surrounding base state is an easterly trade wind flow and the precursor disturbance to Typhoon Nuri is an easterly wave that originates in the ITCZ in the Central Pacific. This disturbance can be tracked more than 10 days prior to tropical storm formation. An overview of the field data is presented here using a newly proposed dynamical framework for tropical cyclone formation within the critical layer of an easterly wave. Despite propagating through a hostile environment ripe with strong vertical wind shear and relatively dry air, the easterly wave critical layer protects the proto-vortex and allows it to gestate until it reaches a more favorable environment. Within this protective "Kelvin cat's eye flow" located within the wave's critical layer existed a sweet spot, defined as the intersection between the wave trough and critical latitude, which is the preferred location for tropical cyclogenesis. Global Forecast System Final Analyses and IR satellite imagery, which shows convective bands wrapping around the sweet spot as genesis nears, confirm that this sweet spot is the location where Typhoon Nuri's dominant low-level circulation emerges.
United States Air Force C130 and Naval Research Laboratory P3 research flights on 16 and 17 August collected flight-level, dropwindsonde, and Doppler radar data that allowed an evaluation of the dynamic and thermodynamic processes within the cat's eye circulation. The dropwindsonde analyses identifies the precursor easterly wave disturbance on 16 August and identifies an area of weak low-level cyclonic circulation on 17 August.
Real-time forecasts were produced using operational global prediction model data to support scientific missions during TCS-08. These forecasts were found to be useful in flight planning discussions and predicted Typhoon Nuri's eventual genesis latitude within 1.5 degrees 72 h in advance.
C1 [Montgomery, M. T.; Lussier, L. L., III; Moore, R. W.; Wang, Z.] USN, Postgrad Sch, Monterey, CA 93943 USA.
RP Montgomery, MT (reprint author), USN, Postgrad Sch, Monterey, CA 93943 USA.
EM mtmontgo@nps.edu
FU National Science Foundation [ATM-0733380, ATM-0715426, ATM-0649946];
Office of Naval Research [N001408WR20129]; US Naval Postgraduate School
in Monterey, California
FX Thanks to CIMMS and NASA for satellite data and NRL Stennis for ocean
data. This research was supported in part by the National Science
Foundation Grants ATM-0733380, ATM-0715426, ATM-0649946, the Office of
Naval Research grant N001408WR20129 and by the US Naval Postgraduate
School in Monterey, California. This work was initiated between daily
planning meetings and research flights while in the field on Guam, and a
"zero draft" was completed soon after at the Naval Postgraduate School
(NPS). We would like to thank R. Ferek, the ONR/NSF-supported scientists
(especially Pat Harr, Russ Elsberry of the NPS and Peter Black of
NRL/Monterey), the professional and student forecasters, the flight
crews and support personnel who worked tirelessly to make the field
campaign a great success. The science team fostered a stimulating
atmosphere for conducting tropical cyclone research. Finally, we would
like to thank Drs. John Molinari, Roger Smith and George Kiladis for
providing constructive reviews that helped us improve the manuscript.
NR 42
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Z9 34
U1 1
U2 7
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1680-7316
J9 ATMOS CHEM PHYS
JI Atmos. Chem. Phys.
PY 2010
VL 10
IS 20
BP 9879
EP 9900
DI 10.5194/acp-10-9879-2010
PG 22
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 673LH
UT WOS:000283663000011
ER
PT J
AU Montgomery, MT
Wang, Z
Dunkerton, TJ
AF Montgomery, M. T.
Wang, Z.
Dunkerton, T. J.
TI Coarse, intermediate and high resolution numerical simulations of the
transition of a tropical wave critical layer to a tropical storm
SO ATMOSPHERIC CHEMISTRY AND PHYSICS
LA English
DT Article
ID AFRICAN EASTERLY WAVES; CYCLONE FORMATION; NWP SYSTEM; PART II;
CONVECTIVE SYSTEMS; GENESIS; CYCLOGENESIS; MODEL; VORTEX; PREDICTION
AB Recent work has hypothesized that tropical cyclones in the deep Atlantic and eastern Pacific basins develop from within the cyclonic Kelvin cat's eye of a tropical easterly wave critical layer located equatorward of the easterly jet axis. The cyclonic critical layer is thought to be important to tropical cyclogenesis because its cat's eye provides (i) a region of cyclonic vorticity and weak deformation by the resolved flow, (ii) containment of moisture entrained by the developing flow and/or lofted by deep convection therein, (iii) confinement of mesoscale vortex aggregation, (iv) a predominantly convective type of heating profile, and (v) maintenance or enhancement of the parent wave until the developing proto-vortex becomes a self-sustaining entity and emerges from the wave as a tropical depression. This genesis sequence and the overarching framework for describing how such hybrid wave-vortex structures become tropical depressions/storms is likened to the development of a marsupial infant in its mother's pouch, and for this reason has been dubbed the "marsupial paradigm".
Here we conduct the first multi-scale test of the marsupial paradigm in an idealized setting by revisiting the Kurihara and Tuleya problem examining the transformation of an easterly wave-like disturbance into a tropical storm vortex using the WRF model. An analysis of the evolving winds, equivalent potential temperature, and relative vertical vorticity is presented from coarse (28 km), intermediate (9 km) and high resolution (3.1 km) simulations. The results are found to support key elements of the marsupial paradigm by demonstrating the existence of a rotationally dominant region with minimal strain/shear deformation near the center of the critical layer pouch that contains strong cyclonic vorticity and high saturation fraction. This localized region within the pouch serves as the "attractor" for an upscale "bottom up" development process while the wave pouch and proto-vortex move together.
Implications of these findings are discussed in relation to an upcoming field experiment for the most active period of the Atlantic hurricane season in 2010 that is to be conducted collaboratively between the National Oceanic and Atmospheric Administration (NOAA), the National Science Foundation (NSF), and the National Aeronautics and Space Adminstration (NASA).
C1 [Montgomery, M. T.; Dunkerton, T. J.] USN, Postgrad Sch, Monterey, CA USA.
[Dunkerton, T. J.] NW Res Associates, Bellevue, WA USA.
[Wang, Z.] Univ Illinois, Dept Atmospher Sci, Urbana, IL 61801 USA.
RP Montgomery, MT (reprint author), USN, Postgrad Sch, Monterey, CA USA.
EM mtmontgo@nps.edu
FU National Aeronautics and Space Administration; National Science
Foundation [ATM-0733380, ATM-0715426, ATM-0649944, ATM-0649946,
ATM-0227632]; Office of Naval Research [N001408WR20129]; U.S. Naval
Postgraduate School in Monterey, California; [MIPR NNG07HU171];
[NNH04CC63C]
FX We appreciate the enthusiastic reception of our colleagues attending the
NASA AMMA/TCSP workshop in Baltimore (May 2007) where an overview of
some of this work was first presented by MTM. Helpful comments on this
work were provided by our NPS/NRL-Monterey colleagues. We thank C.
Davis, L. Bosart and A. Heymsfeld for their collaboration in the
proposed PREDICT experiment and their assistance with the writing of
Appendix B, and thank Roger Smith and Kevin Tory for their helpful
comments. This research was supported by the National Aeronautics and
Space Administration, MIPR NNG07HU171 and Contract NNH04CC63C, the
National Science Foundation Grants ATM-0733380, ATM-0715426,
ATM-0649944, ATM-0649946, ATM-0227632, the Office of Naval Research
grant N001408WR20129 and the U.S. Naval Postgraduate School in Monterey,
California.
NR 45
TC 27
Z9 27
U1 1
U2 7
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1680-7316
EI 1680-7324
J9 ATMOS CHEM PHYS
JI Atmos. Chem. Phys.
PY 2010
VL 10
IS 22
BP 10803
EP 10827
DI 10.5194/acp-10-10803-2010
PG 25
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 687EG
UT WOS:000284759500007
ER
PT J
AU Zhang, J
Reid, JS
AF Zhang, J.
Reid, J. S.
TI A decadal regional and global trend analysis of the aerosol optical
depth using a data-assimilation grade over-water MODIS and Level 2 MISR
aerosol products
SO ATMOSPHERIC CHEMISTRY AND PHYSICS
LA English
DT Article
ID CALIBRATION; THICKNESS; ALGORITHM; AERONET
AB Using the ten-year (2000-2009) Data-Assimilation (DA) quality Terra MODIS and MISR aerosol products, as well as 7 years of Aqua MODIS, we studied both regional and global aerosol trends over oceans. This included both operational and data assimilation grade versions of the products. After correcting for what appears to be aerosol signal drift from the radiometric calibration of both MODIS instruments, we found MODIS and MISR agreed on a statistically negligible global trend of +/- 0.003/per decade. Our study also suggests that AODs over the Indian Bay of Bengal, east coast of Asia, and Arabian Sea show increasing trends of 0.07, 0.06, and 0.06 per decade for MODIS, respectively. These regional trends are considered as significant with a confidence level above 95%. Similar increasing trends were found from MISR, but with less relative magnitude. These trends reflect respective increases in the optical intensity of aerosol events in each region: anthropogenic aerosols over the east coast of China and Indian Bay of Bengal; and a stronger influence from dust events over the Arabian Sea. Negative AOD trends, low in confidence levels, are found off Central America, the east coast of North America, and the west coast of Africa, which indicate that longer periods of observation are necessary to be conclusive.
C1 [Zhang, J.] Univ N Dakota, Dept Atmospher Sci, Grand Folks, ND USA.
[Reid, J. S.] USN, Res Lab, Marine Meteorol Div, Monterey, CA USA.
RP Zhang, J (reprint author), Univ N Dakota, Dept Atmospher Sci, Grand Folks, ND USA.
EM jzhang@atmos.und.edu
RI Reid, Jeffrey/B-7633-2014
OI Reid, Jeffrey/0000-0002-5147-7955
FU Office of Naval Research [322]; NASA
FX This research was funded by the Office of Naval Research Code 322, the
Office of Naval Research Young Investigator Program, and the NASA
Interdisciplinary Science Program. We acknowledge and appreciate the
AERONET program and their contributing principal investigators and their
staff for establishing and maintaining the coastal and inland sites used
in this investigation. We would like to thank reviewers Lorraine Remer
and Michael Mishchenko for their thoughtful comments. We would also like
to thank Ralph Kahn for his helpful comments and suggestions.
NR 40
TC 129
Z9 132
U1 5
U2 32
PU COPERNICUS GESELLSCHAFT MBH
PI GOTTINGEN
PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY
SN 1680-7316
EI 1680-7324
J9 ATMOS CHEM PHYS
JI Atmos. Chem. Phys.
PY 2010
VL 10
IS 22
BP 10949
EP 10963
DI 10.5194/acp-10-10949-2010
PG 15
WC Meteorology & Atmospheric Sciences
SC Meteorology & Atmospheric Sciences
GA 687EG
UT WOS:000284759500016
ER
PT S
AU Moore, CI
Stell, MF
Rabinovich, WS
Burris, HR
Suite, MR
Thomas, LW
Mahon, R
AF Moore, Christopher I.
Stell, Mena F.
Rabinovich, William S.
Burris, Harris R.
Suite, Michele R.
Thomas, Linda W.
Mahon, Rita
BE Thomas, LMW
Spillar, EJ
TI Naval Research Laboratory Scintillation Playback System for Bench Top
Lasercomm Testing
SO ATMOSPHERIC PROPAGATION VII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Atmospheric Propagation VII
CY APR 06-07, 2010
CL Orlando, FL
SP SPIE
DE Lasercom; Lasercomm; Free Space Optical; FSO; atmospheric scintillation
ID SPACE OPTICAL COMMUNICATIONS; CHESAPEAKE BAY; LINK
AB The Naval Research Laboratory has developed a system to optically "playback" recorded atmospheric scintillation data files. Scintillation data files typically consist of voltage versus time data taken during various outdoor field tests. Optical playback of these files involves modulating laser light in an optical fiber such that the output mimics the fluctuations observed in the outdoor field tests. This capability allows greatly simplified testing of lasercomm hardware and software in a laboratory environment without the need for more expensive and complicated outdoor field tests. This system also enables repetitive testing with the same fluctuations which is extremely useful for optimization of lasercomm system performance.
C1 [Moore, Christopher I.; Rabinovich, William S.; Burris, Harris R.; Suite, Michele R.; Thomas, Linda W.; Mahon, Rita] USN, Res Lab, Washington, DC 20375 USA.
RP Moore, CI (reprint author), USN, Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA.
NR 22
TC 2
Z9 2
U1 1
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8149-8
J9 PROC SPIE
PY 2010
VL 7685
AR 768508
DI 10.1117/12.863557
PG 9
WC Mechanics; Meteorology & Atmospheric Sciences; Optics
SC Mechanics; Meteorology & Atmospheric Sciences; Optics
GA BSM44
UT WOS:000284932600006
ER
PT S
AU Thomas, LM
Moore, CI
Rabinovich, W
AF Thomas, Linda M.
Moore, Christopher I.
Rabinovich, William
BE Thomas, LMW
Spillar, EJ
TI The ONR Enabling Capability on High Bandwidth Lasercom
SO ATMOSPHERIC PROPAGATION VII
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Atmospheric Propagation VII
CY APR 06-07, 2010
CL Orlando, FL
SP SPIE
AB The Office of Naval Research has begun a five year technology development program in high bandwidth lasercom. The program is designed to mature enabling technologies and demonstrate a notional high bandwidth capability to the warfighter. This is a spiral development program, with increasingly automated, capable, and compact systems being demonstrated at the end of each phase. Both direct lasercom links and modulating retroreflector links will be matured during this program.
C1 [Thomas, Linda M.; Moore, Christopher I.; Rabinovich, William] USN, Res Lab, Washington, DC 20375 USA.
RP Thomas, LM (reprint author), USN, Res Lab, 4555 Overlook Ave, Washington, DC 20375 USA.
NR 7
TC 0
Z9 0
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8149-8
J9 PROC SPIE
PY 2010
VL 7685
AR 76850I
DI 10.1117/12.850893
PG 8
WC Mechanics; Meteorology & Atmospheric Sciences; Optics
SC Mechanics; Meteorology & Atmospheric Sciences; Optics
GA BSM44
UT WOS:000284932600013
ER
PT J
AU Ge, XY
Li, T
Zhang, SJ
Peng, M
AF Ge, Xuyang
Li, Tim
Zhang, Shengjun
Peng, Melinda
TI What causes the extremely heavy rainfall in Taiwan during Typhoon
Morakot (2009)?
SO ATMOSPHERIC SCIENCE LETTERS
LA English
DT Article
DE heavy rainfall; typhoon
ID TROPICAL CYCLONES; MODEL; PRECIPITATION; FLOW
AB Despite its category-2 intensity only, Typhoon (tropical cyclone in the Western Pacific) Morakot produced a record-breaking rainfall in Taiwan. A cloud-resolving model is used to simulate this extreme rainfall event and understand the dynamic aspect under this event. Due to the interaction between Morakot and a monsoon system, a peripheral gale force monsoon surge appears to the south of Taiwan. The monsoon surge remains even in a sensitivity experiment in which Taiwan terrain is reduced. However, the rainfall amount in Taiwan is greatly reduced without high topography over Taiwan, suggesting the important role the local topography plays in producing heavy rainfall. The overall numerical results indicate that it is the interaction among the typhoon, monsoon system, and local terrain that led to this extreme event. Copyright (C) 2010 Royal Meteorological Society
C1 [Ge, Xuyang; Li, Tim; Zhang, Shengjun] Univ Hawaii, Int Pacific Res Ctr, SOEST, Honolulu, HI 96822 USA.
[Zhang, Shengjun] Chinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing, Peoples R China.
[Peng, Melinda] USN, Res Lab, Marine Meteorol Div, Monterey, CA USA.
RP Ge, XY (reprint author), Univ Hawaii, Int Pacific Res Ctr, SOEST, 1680 East West Rd,POST Bldg 401, Honolulu, HI 96822 USA.
EM xuyang@hawaii.edu
FU ONR [N000140710145, N000140810256]; NSF of China [40875026]; Japan
Agency for Marine-Earth Science and Technology (JAMSTEC); NASA
[NNX07AG53G]; NOAA [NA17RJ1230]
FX The authors thank Drs Xiaqiong Zhou and Pang-Chi Hsu for valuable
discussions. This work is supported by ONR Grants N000140710145 and
N000140810256. X. Ge is also supported by NSF of China Grant 40875026.
International Pacific Research Center is partially sponsored by the
Japan Agency for Marine-Earth Science and Technology (JAMSTEC), NASA
(NNX07AG53G), and NOAA (NA17RJ1230). This is SOEST contribution number
7875 and IPRC contribution number 650.
NR 15
TC 58
Z9 59
U1 3
U2 18
PU WILEY-V C H VERLAG GMBH
PI WEINHEIM
PA PO BOX 10 11 61, D-69451 WEINHEIM, GERMANY
SN 1530-261X
J9 ATMOS SCI LETT
JI Atmos. Sci. Lett.
PD JAN-MAR
PY 2010
VL 11
IS 1
BP 46
EP 50
DI 10.1002/asl.255
PG 5
WC Geochemistry & Geophysics; Meteorology & Atmospheric Sciences
SC Geochemistry & Geophysics; Meteorology & Atmospheric Sciences
GA 566TE
UT WOS:000275395300008
ER
PT J
AU Landi, E
Bhatia, AK
AF Landi, E.
Bhatia, A. K.
TI Atomic data and spectral line intensities for Ni XIV
SO ATOMIC DATA AND NUCLEAR DATA TABLES
LA English
DT Article
ID EXTREME-ULTRAVIOLET SPECTRUM; SOLAR ACTIVE-REGION; EMISSION-LINES;
TRANSITION-PROBABILITIES; RATE COEFFICIENTS; FORBIDDEN LINES;
CROSS-SECTIONS; CO-XIII; WAVELENGTHS; ANGSTROM
AB Electron impact collision strengths, energy levels, oscillator strengths, and spontaneous radiative decay rates are calculated for Ni XIV. We include in the calculations all the configurations belonging to the n = 3 complex, and provide data for the lowest 143 fine-structure levels, belonging to the configurations 3s(2)3p(3), 3s3p(4), 3s(2)3p(2)3d, 3p(5), 3s3p(3)3d, and 3s(2)3p3d(2). Collision strengths are calculated at six incident energies for all transitions: 0.112, 8.07, 21.3, 43.4. 80.3, and 141.8 Ry above the threshold of each transition. Calculations have been carried out using the Flexible Atomic Code. Excitation rate coefficients are calculated as a function of electron temperature by assuming a Maxwellian electron velocity distribution. Using the excitation rate coefficients and the radiative transition rates of the present work, statistical equilibrium equations for level populations are solved at electron densities covering the range of 10(8)-10(14) cm(-3) and at an electron temperature of log T(e) (K) = 6.3, corresponding to the maximum abundance of Ni XIV. Spectral line intensities are calculated, and their diagnostic relevance is discussed. This data set is available in version 6.0 of the CHIANTI database. Published by Elsevier Inc.
C1 [Landi, E.; Bhatia, A. K.] USN, Res Lab, Washington, DC 20375 USA.
[Landi, E.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.
[Landi, E.] ARTEP Inc, Columbia, MD 21044 USA.
RP Landi, E (reprint author), USN, Res Lab, Code 7662,4555 Overlook Ave SW, Washington, DC 20375 USA.
EM enrico.landi@nrl.navy.mil
RI Landi, Enrico/H-4493-2011
FU NASA [NNH06CD24C, NNG04ED07P]
FX The work of Enrico Landi is supported by the NNH06CD24C, NNG04ED07P, and
other NASA Grants. Calculations were carried out using the Discover
computer of the NASA Center for Computation Science.
NR 29
TC 5
Z9 5
U1 0
U2 4
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0092-640X
J9 ATOM DATA NUCL DATA
JI Atom. Data Nucl. Data Tables
PD JAN
PY 2010
VL 96
IS 1
BP 52
EP 84
DI 10.1016/j.adt.2009.09.002
PG 33
WC Physics, Atomic, Molecular & Chemical; Physics, Nuclear
SC Physics
GA 526GO
UT WOS:000272275900003
ER
PT S
AU Brock, D
McClimens, B
Wasylyshyn, C
Trafton, JG
McCurry, M
AF Brock, Derek
McClimens, Brian
Wasylyshyn, Christina
Trafton, J. Gregory
McCurry, Malcolm
BE Ystad, S
Aramaki, M
KronlandMartinet, R
Jensen, K
TI Evaluating the Utility of Auditory Perspective-Taking in Robot Speech
Presentations
SO AUDITORY DISPLAY
SE Lecture Notes in Computer Science
LA English
DT Proceedings Paper
CT 6th International Symposium on Computer Music Modeling and Retrieval
CY MAY 18-22, 2009
CL Copenhagen, DENMARK
SP Univ Aalborg, Lab Mecan & Acoust, INCM, CNRS
DE auditory perspective-taking; adaptive auditory display; synthetic
speech; human-robot interaction; auditory interaction; listening
performance
AB In speech interactions, people routinely reason about each other's auditory perspective and change their manner of speaking accordingly, by adjusting their voice to overcome noise or distance, or by pausing for especially loud sounds and resuming when conditions are more favorable for the listener. In this paper we report the findings of a listening study motivated both by this observation and a prototype auditory interface for a mobile robot that monitors the aural parameters of its environment and infers its user's listening requirements. The results provide significant empirical evidence of the utility of simulated auditory perspective taking and the inferred use of loudness and/or pauses to overcome the potential of ambient noise to mask synthetic speech.
C1 [Brock, Derek; McClimens, Brian; Wasylyshyn, Christina; Trafton, J. Gregory; McCurry, Malcolm] USN, Ctr Appl Res Artificial Intelligence, Naval Res Lab, Washington, DC 20375 USA.
RP Brock, D (reprint author), USN, Ctr Appl Res Artificial Intelligence, Naval Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM Derek.Brock@nrl.navy.mil; Brian.McClimens@nrl.navy.mil;
Christina.Wasylyshyn@nrl.navy.mil; Gregory.Trafton@nrl.navy.mil;
Malcolm.McCurry@nrl.navy.mil
NR 11
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0302-9743
BN 978-3-642-12438-9
J9 LECT NOTES COMPUT SC
PY 2010
VL 5954
BP 266
EP 286
PG 21
WC Computer Science, Information Systems; Computer Science, Theory &
Methods
SC Computer Science
GA BPR71
UT WOS:000279731700014
ER
PT S
AU Jaggard, AD
Meadows, C
Mislove, M
Segala, R
AF Jaggard, Aaron D.
Meadows, Catherine
Mislove, Michael
Segala, Roberto
BE Armando, A
Lowe, G
TI Reasoning about Probabilistic Security Using Task-PIOAs
SO AUTOMATED REASONING FOR SECURITY PROTOCOL ANALYSIS AND ISSUES IN THE
THEORY OF SECURITY
SE Lecture Notes in Computer Science
LA English
DT Proceedings Paper
CT Joint Workshop on Automated Reasoning for Security Protocol Analysis and
Issues in the Theory of Security
CY MAR 27-28, 2010
CL Paphos, CYPRUS
ID CRYPTOGRAPHIC PROTOCOLS; ANONYMITY; CALCULUS
AB Task-structured probabilistic input/output automata (Task-PIOAs) are concurrent probabilistic automata that, among other things, have been used to provide a formal framework for the universal composability paradigms of protocol security. One of their advantages is that that they allow one to distinguish high-level nondeterminism that can affect the outcome of the protocol, from low-level choices, which can't. We present an alternative approach to analyzing the structure of TaskPIOAs that relies on ordered sets. We focus on two of the components that are required to define and apply Task-PIOAs: discrete probability theory and automata theory. We believe our development gives insight into the structure of Task-PIOAs and how they can be utilized to model crypto-protocols. We illustrate our approach with an example from anonymity, an area that has not previously been addressed using Task-PIOAs. We model Chaum's Dining Cryptographers Protocol at a level that does not require cryptographic primitives in the analysis. We show via this example how our approach can leverage a proof of security in the case a principal behaves deterministically to prove security when that principal behaves probabilistically.
C1 [Jaggard, Aaron D.] Rutgers State Univ, New Brunswick, NJ 08903 USA.
[Meadows, Catherine] Naval Res Lab, Washington, DC 20375 USA.
[Mislove, Michael] Tulane Univ, New Orleans, LA 70118 USA.
[Segala, Roberto] Univ Verona, I-37100 Verona, Italy.
RP Jaggard, AD (reprint author), Rutgers State Univ, New Brunswick, NJ 08903 USA.
EM adj@dimacs.rutgers.edu; catherine.meadows@nrl.navy.mil;
mwm@math.tulane.edu; roberto.segala@univr.it
OI Jaggard, Aaron D./0000-0003-0628-4553
FU NSF [0751674]; ONR; MIUR PRIN [INFSO-ICT-223844.L.]; Center for Discrete
Mathematics and Theoretical Computer Science; DIMACS Special Focus on
Communication Security and Information Privacy
FX The authors wish to thank the Center for Discrete Mathematics and
Theoretical Computer Science and the DIMACS Special Focus on
Communication Security and Information Privacy for their support that
allowed us to gather at Rutgers to work on this project for a week in
May/June, 2008.; The author wishes to acknowledge the support of NSF
grant 0751674 and of the ONR during this research.; These authors wish
to acknowledge the support of the ONR during this research.; The author
acknowledges the support of the MIUR PRIN project SOFT and FP7 grant
INFSO-ICT-223844.L.
NR 23
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0302-9743
BN 978-3-642-16073-8
J9 LECT NOTES COMPUT SC
PY 2010
VL 6186
BP 2
EP +
PG 4
WC Computer Science, Theory & Methods
SC Computer Science
GA BTA62
UT WOS:000286287100002
ER
PT S
AU Estabridis, K
AF Estabridis, Katia
BE Sadjadi, FA
Mahalanobis, A
Chodos, SL
Thompson, WE
Casasent, DP
Chao, TH
TI Automatic Target Recognition via Sparse Representations
SO AUTOMATIC TARGET RECOGNITION XX; ACQUISITION, TRACKING, POINTING, AND
LASER SYSTEMS TECHNOLOGIES XXIV; AND OPTICAL PATTERN RECOGNITION XXI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Automatic Target Recognition XX - Acquisition, Tracking,
Pointing, and Laser Systems Technologies XXIV - and Optical Pattern
Recognition XXI
CY APR 05-08, 2010
CL Orlando, FL
SP SPIE
DE Sparse representations; overcomplete dictionary; compressed sensing;
automatic target recognition
AB Automatic target recognition (ATR) based on the emerging technology of Compressed Sensing (CS) can considerably improve accuracy, speed and cost associated with these types of systems. An image based ATR algorithm has been built upon this new theory, which can perform target detection and recognition in a low dimensional space. Compressed dictionaries (A) are formed to include rotational information for a scale of interest. The algorithm seeks to identify y(test sample) as a linear combination of the dictionary elements : y=Ax, where A is an element of R(nxm) (n << m) and x is a sparse vector whose non-zero entries identify the input y. The signal x will be sparse with respect to the dictionary A as long as y is a valid target. The algorithm can reject clutter and background, which are part of the input image. The detection and recognition problems are solved by finding the sparse-solution to the undetermined system y=Ax via Orthogonal Matching Pursuit (OMP) and l(1) minimization techniques.
Visible and MWIR imagery collected by the Army Night Vision and Electronic Sensors Directorate (NVESD) was utilized to test the algorithm. Results show an average detection and recognition rates above 95% for targets at ranges up to 3Km for both image modalities.
C1 USN, Image & Signal Proc Branch, Res & Intelligence Dept, Air Warfare Ctr Weap Div, China Lake, CA 93555 USA.
RP Estabridis, K (reprint author), USN, Image & Signal Proc Branch, Res & Intelligence Dept, Air Warfare Ctr Weap Div, China Lake, CA 93555 USA.
EM katia.estabridis@navy.mil
NR 19
TC 7
Z9 7
U1 0
U2 6
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8160-3
J9 PROC SPIE
PY 2010
VL 7696
AR 76960O
DI 10.1117/12.849591
PG 9
WC Engineering, Aerospace; Robotics; Optics
SC Engineering; Robotics; Optics
GA BSH11
UT WOS:000284396300021
ER
PT S
AU Lidsky, D
Nichols, K
Lange, C
Warren, J
Thorsted, G
Freeman, B
Steadman, C
AF Lidsky, David
Nichols, Ken
Lange, Charles
Warren, Jeff
Thorsted, Greg
Freeman, Bryan
Steadman, Charles
BE Sadjadi, FA
Mahalanobis, A
Chodos, SL
Thompson, WE
Casasent, DP
Chao, TH
TI Model for signal acquisition range for laser guided mortar
SO AUTOMATIC TARGET RECOGNITION XX; ACQUISITION, TRACKING, POINTING, AND
LASER SYSTEMS TECHNOLOGIES XXIV; AND OPTICAL PATTERN RECOGNITION XXI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Automatic Target Recognition XX - Acquisition, Tracking,
Pointing, and Laser Systems Technologies XXIV - and Optical Pattern
Recognition XXI
CY APR 05-08, 2010
CL Orlando, FL
SP SPIE
DE laser; guided; mortar; model; analytical; photo-diode; trans-impedance
amplifier; noise
AB A simple analytical model for the signal acquisition range for a laser guided mortar is presented. The signal consists of a repetitively pulsed laser of fixed pulse duration and fixed pulse repetition frequency. The pulses are detected by a seeker consisting of a quadrant photodiode and a trans-impedance amplifier. Noise is introduced from solar irradiance and from the detector/amplifier electronics. The model maximizes the acquisition range by optimizing trans-impedance amplifier circuit components. A comparison of integrating multiple low energy pulses (MPLD) versus detecting each pulse individually (conventional) is made.
C1 [Lidsky, David; Nichols, Ken; Thorsted, Greg; Freeman, Bryan; Steadman, Charles] USN, Surface Warfare Ctr Dahlgren, Dahlgren, VA 22448 USA.
RP Lidsky, D (reprint author), USN, Surface Warfare Ctr Dahlgren, 18106 Phalanx Rd,Suite 220, Dahlgren, VA 22448 USA.
EM david.lidsky@navy.mil
NR 2
TC 0
Z9 0
U1 1
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8160-3
J9 PROC SPIE
PY 2010
VL 7696
AR 76961J
DI 10.1117/12.849250
PG 11
WC Engineering, Aerospace; Robotics; Optics
SC Engineering; Robotics; Optics
GA BSH11
UT WOS:000284396300045
ER
PT S
AU van Bibber, K
AF van Bibber, Karl
BE Tanner, DB
VanBibber, KA
TI Pierre Sikivie and the Gift for Simple Ideas
SO AXIONS 2010: PROCEEDINGS OF THE INTERNATIONAL CONFERENCE
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT International Conference on Axions 2010
CY JAN 15-17, 2010
CL Gainesville, FL
SP Univ Florida, Off Provost, Univ Florida, Off Res, Univ Florida, Coll Liberal Arts & Sci, Univ Florida, Inst Fundamental Theory, Univ Florida, Inst High Energy Phys & Astrophys, Univ Florida, Dept Phys
DE Axions; Dark Matter; Primakoff Effect; Microwave Cavity Experiment
ID QUANTUM INTERFERENCE DEVICE; INVISIBLE-AXION; COSMIC AXIONS;
DARK-MATTER; RADIOFREQUENCY-AMPLIFIER; SEARCH; CONSTRAINTS
AB I comment on the status and future prospects of the field of axion searches in the context of the seminal contributions of Pierre Sikivie.
C1 USN, Postgrad Sch, Monterey, CA 93943 USA.
RP van Bibber, K (reprint author), USN, Postgrad Sch, Monterey, CA 93943 USA.
NR 32
TC 0
Z9 0
U1 0
U2 0
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0824-1
J9 AIP CONF PROC
PY 2010
VL 1274
BP 1
EP 6
DI 10.1063/1.3489552
PG 6
WC Astronomy & Astrophysics; Physics, Applied
SC Astronomy & Astrophysics; Physics
GA BTK48
UT WOS:000287167800001
ER
PT S
AU Mueller, G
Sikivie, P
Tanner, DB
van Bibber, K
AF Mueller, Guido
Sikivie, Pierre
Tanner, David B.
van Bibber, Karl
BE Tanner, DB
VanBibber, KA
TI Resonantly-enhanced axion-photon regeneration
SO AXIONS 2010: PROCEEDINGS OF THE INTERNATIONAL CONFERENCE
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT International Conference on Axioms 2010
CY JAN 15-17, 2010
CL Gainesville, FL
SP Univ Florida, Off Provost, Univ Florida, Off Res, Univ Florida, Coll Liberal Arts & Sci, Univ Florida, Inst Fundamental Theory, Univ Florida, Inst High Energy Phys & Astrophys, Univ Florida, Dept Phys
DE axion; photon regeneration; shining light through walls
ID FREQUENCY STABILIZATION; SEARCH
AB A resonantly-enhanced photon-regeneration experiment to search for the axion or axion-like particles is discussed. Photons enter a strong magnetic field and some are converted to axions; the axions can pass through an opaque wall and some may convert back to photons in a second high-field region. The photon regeneration is enhanced by employing matched Fabry-Perot optical cavities, with one cavity within the axion generation magnet and the second within the photon regeneration magnet. The optics for this experiment are discussed, with emphasis on the alignment of the two cavities.
C1 [Mueller, Guido; Sikivie, Pierre; Tanner, David B.] Univ Florida, Dept Phys, Gainesville, FL 32611 USA.
[van Bibber, Karl] Naval Postgrad Sch, Monterey, CA 93943 USA.
RP Mueller, G (reprint author), Univ Florida, Dept Phys, Gainesville, FL 32611 USA.
FU U.S. Department of Energy [DEFG02-97ER41029, DE-AC52-07NA27344]
FX This work was supported by the U.S. Department of Energy under contracts
DEFG02-97ER41029, and DE-AC52-07NA27344.
NR 21
TC 1
Z9 1
U1 0
U2 0
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0824-1
J9 AIP CONF PROC
PY 2010
VL 1274
BP 150
EP +
DI 10.1063/1.3489547
PG 2
WC Astronomy & Astrophysics; Physics, Applied
SC Astronomy & Astrophysics; Physics
GA BTK48
UT WOS:000287167800024
ER
PT J
AU Zdanavicius, J
Bartasiute, S
Boyle, RP
Vrba, FJ
Zdanavicius, K
AF Zdanavicius, J.
Bartasiute, S.
Boyle, R. P.
Vrba, F. J.
Zdanavicius, K.
TI MULTICOLOR CCD PHOTOMETRY OF THE OPEN CLUSTER IC 361
SO BALTIC ASTRONOMY
LA English
DT Article
DE stars: fundamental parameters; Galaxy: open clusters: individual (IC
361)
AB CCD photometry in the eight-color Vilnius + I system for 7250 stars down to I = 19.6 mag has been obtained in the 20' x 26' field of the open cluster IC 361 in Camelopardalis. The catalog of 1420 stars down to V similar to 18.5 mag is presented. It contains the coordinates, V magnitudes and seven color indices, quantitative photometric spectral types, absolute magnitudes and distances. The interstellar extinction is found to be non-uniform across the field, with the values of A(V) in the range 1.9 to 2.4 mag. The distribution of distance moduli of individual stars shows that the cluster is located as far as, or just beyond, the Perseus spiral arm.
C1 [Zdanavicius, J.; Bartasiute, S.] Vilnius Univ Observ, LT-03100 Vilnius, Lithuania.
[Boyle, R. P.] Steward Observ, Vatican Observ Res Grp, Tucson, AZ 85721 USA.
[Vrba, F. J.] USN, Observ Flagstaff Stn, Flagstaff, AZ 86002 USA.
[Zdanavicius, K.] Vilnius State Univ, Inst Theoret Phys & Astron, LT-01108 Vilnius, Lithuania.
RP Zdanavicius, J (reprint author), Vilnius Univ Observ, Ciurlionio 29, LT-03100 Vilnius, Lithuania.
RI Boyle, Richard/G-7257-2012
FU Research Council of Lithuania [MOS-8/2010]
FX J. Z. was supported by the Research Council of Lithuania under grant No.
MOS-8/2010.
NR 11
TC 3
Z9 3
U1 0
U2 1
PU INST THEORETICAL PHYSICS ASTRONOMY
PI MOLETAI
PA MOLETAI LT-4150, LITHUANIA
SN 1392-0049
J9 BALT ASTRON
JI Balt. Astron.
PY 2010
VL 19
IS 1-2
BP 63
EP 94
PG 32
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA 638MO
UT WOS:000280899200003
ER
PT S
AU Sutto, TE
Wong, TC
Taft, JR
Duncan, TT
AF Sutto, Thomas E.
Wong, Tiffany C.
Taft, Jenna R.
Duncan, Teresa T.
BE Ogumi, Z
Dudney, NJ
Narayanan, SR
TI MG(2+) ION BEHAVIOR IN IONIC LIQUIDS
SO BATTERY/ENERGY TECHNOLOGY (GENERAL) - 216TH ECS MEETING
SE ECS Transactions
LA English
DT Proceedings Paper
CT Symposium on Battery/Energy Technology Joint General Session Held During
the 216th Meeting of the Electrochemical-Society (ECS)
CY OCT 04-09, 2009
CL Vienna, AUSTRIA
SP Electrochem Soc (ECS), Battery, Energy Technol
ID POLYMER COMPOSITE ELECTRODES; MO6S8 CHEVREL-PHASE;
1,2-DIMETHYL-3-PROPYL-IMIDAZOLIUM TETRAFLUOROBORATE;
1-ETHYL-3-METHYL-IMIDAZOLIUM TETRAFLUOROBORATE; BATTERIES; GRAPHITE;
ELECTROLYTES; INSERTION; KINETICS; SYSTEMS
AB The behavior of the Mg ion in ionic liquids is characterized in this paper. High ionic conductivity and electrochemical stability is observed for ionic liquids composed of a 1,2-dimethyl-3-n-R-imidazolium cation (R = propyl (MMPI) and butyl (MMBI)) and a bis(trifluoromethanesulfonyl)-imide (TFSI) anion containing Mg(TFSI)(2). The ionic liquids containing the Mg ion are also used to create solid polymer gel electrolytes using PVdF-HFP. The ionic conductivity of the TFSI-based ionic liquids, in both liquid form and solid gel, ranges from 1-3 mS/cm at room temperature. Electrochemical measurements indicate that the Mg ion is readily intercalated and de-intercalated from graphite, with charge/discharge efficiencies typically above 80%. X-ray diffraction analysis indicates a difference of only 1 angstrom in the c-axis expansion of the graphite when intercalated with the imidazolium cation or the Mg ion and the imidazolium cations. This indicates that co-intercalation of the Mg ion and the imidazolium cation is occurring.
C1 [Sutto, Thomas E.; Wong, Tiffany C.] USN, Res Lab, Div Mat Sci & Technol, Code 6364,BLDG 3,Rm 210,4555 Overlook Ave SW, Washington, DC 20375 USA.
[Taft, Jenna R.; Duncan, Teresa T.] NOVA Res Inc, Alexandria 22308, VA USA.
RP Sutto, TE (reprint author), USN, Res Lab, Div Mat Sci & Technol, Code 6364,BLDG 3,Rm 210,4555 Overlook Ave SW, Washington, DC 20375 USA.
EM thomas.sutto@nrl.navy.mil
RI Dudney, Nancy/I-6361-2016
OI Dudney, Nancy/0000-0001-7729-6178
NR 21
TC 2
Z9 2
U1 0
U2 21
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 S MAIN ST, PENNINGTON, NJ 08534-2839 USA
SN 1938-5862
BN 978-1-56677-809-1
J9 ECS TRANSACTIONS
PY 2010
VL 25
IS 35
BP 85
EP 98
DI 10.1149/1.3414006
PG 14
WC Electrochemistry; Energy & Fuels
SC Electrochemistry; Energy & Fuels
GA BDH26
UT WOS:000313248000008
ER
PT S
AU Sutto, TE
Wong, TC
Taft, JR
Duncan, TT
AF Sutto, Thomas E.
Wong, Tiffany C.
Taft, Jenna R.
Duncan, Teresa T.
BE Ogumi, Z
Dudney, NJ
Narayanan, SR
TI Synthesis and Characterization of Polymerized Ionic Liquids
SO BATTERY/ENERGY TECHNOLOGY (GENERAL) - 216TH ECS MEETING
SE ECS Transactions
LA English
DT Proceedings Paper
CT Symposium on Battery/Energy Technology Joint General Session Held During
the 216th Meeting of the Electrochemical-Society (ECS)
CY OCT 04-09, 2009
CL Vienna, AUSTRIA
SP Electrochem Soc (ECS), Battery, Energy Technol
ID PHYSICAL-PROPERTIES; ELECTROLYTES
AB Polymerized ionic liquids are prepared using a dibromoalkane reacted with 2 methyl imidazole. Two different dibromoalkanes are used, 1,5-dibromopentane and 1,6-dibromohexane. In order to increase the molecular weight of these two polymers, two different synthetic attempts were used to create poly-(2-methyl-1-pentyl imidazolium bromide and poly-(2-methyl-1-hexyl imidazolium bromide) with molecular weights of 7400 and 8900. Anion exchanges are performed to replace the bromide with hexafluorophosphate. These polymers are then doped with LiPF6 in a solution of acetonitrile which was subsequently drop cast. Ionic conductivity measurements indicate ionic conductivity above 0.01 mS/cm, with no liquid electrolyte present.
C1 [Sutto, Thomas E.; Wong, Tiffany C.] USN, Res Lab, Div Mat Sci & Technol, Code 6364,BLDG 3,Rm 210,4555 Overlook Ave Sw, Washington, DC 20375 USA.
[Taft, Jenna R.; Duncan, Teresa T.] NOVA Res Inc, Alexandria 22308, VA USA.
RP Sutto, TE (reprint author), USN, Res Lab, Div Mat Sci & Technol, Code 6364,BLDG 3,Rm 210,4555 Overlook Ave Sw, Washington, DC 20375 USA.
EM thomas.sutto@nrl.navy.mil
RI Dudney, Nancy/I-6361-2016
OI Dudney, Nancy/0000-0001-7729-6178
NR 6
TC 0
Z9 0
U1 1
U2 10
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 S MAIN ST, PENNINGTON, NJ 08534-2839 USA
SN 1938-5862
BN 978-1-56677-809-1
J9 ECS TRANSACTIONS
PY 2010
VL 25
IS 35
BP 99
EP 104
DI 10.1149/1.3414007
PG 6
WC Electrochemistry; Energy & Fuels
SC Electrochemistry; Energy & Fuels
GA BDH26
UT WOS:000313248000009
ER
PT J
AU Romano, JA
Rittschof, D
McClellan-Green, PD
Holm, ER
AF Romano, Jocelyn A.
Rittschof, Daniel
McClellan-Green, Patricia D.
Holm, Eric R.
TI Variation in toxicity of copper pyrithione among populations and
families of the barnacle, Balanus amphitrite
SO BIOFOULING
LA English
DT Article
DE copper pyrithione; Balanus amphitrite; toxicity; interpopulation
variation; intrapopulation variation
ID FIXED WAVELENGTH FLUORESCENCE; DAPHNIA-MAGNA STRAUS; ANTIFOULING
BIOCIDES; ENVIRONMENTAL FATE; RISK-ASSESSMENT; LIFE-HISTORY;
HEAVY-METALS; STRESS; VARIABILITY; TOLERANCE
AB Inter-and intra-population variation in the toxicity of the antifouling biocide copper pyrithione (CuPT) was examined for nauplius larvae of the barnacle Balanus amphitrite. Nauplii were collected from brooding adults from four sites within the Newport River estuary (NC), chosen based on an initial estimation of recent and historical human activities that affect local contamination levels. Each site was characterized for the presence of polycyclic aromatic hydrocarbons and for the frequency of gastropod imposex, an indicator of contamination by organotins. Sensitivity of nauplii to CuPT varied significantly across the sites/populations, with LC50 values ranging from 4.0 mu g l(-1) to 6.1 mu g l(-1). Larvae from the most contaminated site were the most sensitive to CuPT. Intrapopulation variation in toxicity was investigated by exposing nauplius larvae from 15 maternal families to a fixed concentration of CuPT (6.1 mu g l(-1)). Variation in larval mortality among the families was significant, ranging from 15.1% to 98.9%.
C1 [Holm, Eric R.] USN, Ctr Surface Warfare, Carderock Div, Bethesda, MD USA.
[McClellan-Green, Patricia D.] N Carolina State Univ, Ctr Marine Sci & Technol, Dept Environm & Mol Toxicol, Morehead City, NC USA.
[Romano, Jocelyn A.; Rittschof, Daniel; McClellan-Green, Patricia D.] Duke Univ, Marine Lab, Beaufort, NC 28516 USA.
RP Holm, ER (reprint author), USN, Ctr Surface Warfare, Carderock Div, Bethesda, MD USA.
EM eric.holm@navy.mil
FU Naval Research Enterprise Internship Program; NOAA [NA04N0S4200151];
Office of Naval Research
FX This research was funded by the Naval Research Enterprise Internship
Program (JAR), the NOAA National Estuarine Research Reserve Graduate
Research Fellowship Program ( Grant # NA04N0S4200151 to JAR/PMG), and
the Office of Naval Research (DR, ERH). J. Osterberg produced Figure 1.
NR 44
TC 6
Z9 6
U1 1
U2 10
PU TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
SN 0892-7014
EI 1029-2454
J9 BIOFOULING
JI Biofouling
PY 2010
VL 26
IS 3
BP 341
EP 347
DI 10.1080/08927010903511618
PG 7
WC Biotechnology & Applied Microbiology; Marine & Freshwater Biology
SC Biotechnology & Applied Microbiology; Marine & Freshwater Biology
GA 593VN
UT WOS:000277489900007
PM 20112148
ER
PT J
AU Lee, JS
Ray, RI
Little, BJ
AF Lee, Jason S.
Ray, Richard I.
Little, Brenda J.
TI An assessment of alternative diesel fuels: microbiological contamination
and corrosion under storage conditions
SO BIOFOULING
LA English
DT Article
DE corrosion; diesel; biodiesel; biofouling; MIC; carbon steel; aluminum;
stainless steel
ID ANAEROBIC BIODEGRADATION; ELECTROCHEMICAL-BEHAVIOR;
AROMATIC-HYDROCARBONS; GEL-ELECTROPHORESIS; NATURAL-GAS; BIODIESEL;
DEGRADATION; METABOLISM; IRON; OIL
AB Experiments were designed to evaluate the nature and extent of microbial contamination and the potential for microbiologically influenced corrosion of alloys exposed in a conventional high sulfur diesel (L100) and alternative fuels, including 100% biodiesel (B100), ultra-low sulfur diesel (ULSD) and blends of ULSD and B100 (B5 and B20). In experiments with additions of distilled water, all fuels supported biofilm formation. Changes in the water pH did not correlate with observations related to corrosion. In all exposures, aluminum 5052 was susceptible to pitting while stainless steel 304L exhibited passive behavior. Carbon steel exhibited uniform corrosion in ULSD and L100, and passive behavior in B5, B20, and B100.
C1 [Lee, Jason S.; Ray, Richard I.; Little, Brenda J.] USN, Res Lab, Stennis Space Ctr, MS 39529 USA.
RP Lee, JS (reprint author), USN, Res Lab, Codes 7332-7303, Stennis Space Ctr, MS 39529 USA.
EM jlee@nrlssc.navy.mil
FU Office of Naval Research (ONR) [332, N0001408WX20857]
FX This work was supported by Dr David Shifler at the Office of Naval
Research (ONR Code 332) under award N0001408WX20857. The authors would
also like to acknowledge S. Williams (Naval Fuels and Lubes CFT), K. J.
Johnson, R. E. Morris, and M. H. Hammond (NRL Code 6181), and B. C.
Giordano (Nova Research) for the work involving fuel chemical
characterization. Publication Number NRL/JA/7330-10-0331.
NR 54
TC 22
Z9 22
U1 1
U2 23
PU TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
SN 0892-7014
J9 BIOFOULING
JI Biofouling
PY 2010
VL 26
IS 6
BP 623
EP 635
DI 10.1080/08927014.2010.504984
PG 13
WC Biotechnology & Applied Microbiology; Marine & Freshwater Biology
SC Biotechnology & Applied Microbiology; Marine & Freshwater Biology
GA 650XG
UT WOS:000281887000001
PM 20628927
ER
PT B
AU Scribner, D
Johnson, L
AF Scribner, Dean
Johnson, Lee
BA Hung, GK
BF Hung, GK
TI Applications of Advanced Technologies to Retinal Prosthesis
SO BIOMEDICAL ENGINEERING PRINCIPLES OF THE BIONIC MAN
SE Series on Bioengineering and Biomedical Engineering
LA English
DT Article; Book Chapter
ID EPITHELIAL-CELL SHEETS; ELECTRICAL-STIMULATION; NEURAL STIMULATION;
IRIDIUM OXIDE; MICROELECTRODE ARRAY; RETINITIS-PIGMENTOSA; ELECTRODE
ARRAY; IMPLANTATION; VISION; CHARGE
C1 [Scribner, Dean] Northrop Grumman, Falls Church, VA 22041 USA.
[Johnson, Lee] USN, Res Lab, Div Opt Sci, Washington, DC 20012 USA.
RP Scribner, D (reprint author), Northrop Grumman, 5113 Leesburg Pike, Falls Church, VA 22041 USA.
EM dean.scribner@ngc.com; lee.johnson@nrl.navy.mil
NR 77
TC 0
Z9 0
U1 0
U2 4
PU WORLD SCIENTIFIC PUBL CO PTE LTD
PI SINGAPORE
PA PO BOX 128 FARRER RD, SINGAPORE 9128, SINGAPORE
BN 978-981-277-978-6
J9 SER BIOENG BIOMED EN
PY 2010
VL 5
BP 81
EP 125
PG 45
WC Engineering, Biomedical
SC Engineering
GA BMF88
UT WOS:000272214200003
ER
PT S
AU Kamgar-Parsi, B
Lawson, WE
Kamgar-Parsi, B
AF Kamgar-Parsi, Behrooz
Lawson, Wallace Edgar
Kamgar-Parsi, Behzad
BE Vijaya Kumar, BVK
Prabhakar, S
Ross, AA
TI Face Recognition Motivated by Humans Approach
SO BIOMETRIC TECHNOLOGY FOR HUMAN IDENTIFICATION VII
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Biometric Technology for Human Identification VII
CY APR 05-06, 2010
CL Orlando, FL
SP SPIE
DE Face Recognition; Automatic Surveillance; Human-Like Classification;
Morphing Facial Images; Open World; Biometrics
AB We report the development of a face recognition system which operates in the same way as humans in that it is capable of recognizing a number of people, while rejecting everybody else as strangers. While humans do it routinely, a particularly challenging aspect of the problem of open-world face recognition has been the question of rejecting previously unseen faces as unfamiliar. Our approach can handle previously unseen faces; it is based on identifying and enclosing the region(s) in the human face space which belong to the target person(s).
C1 [Kamgar-Parsi, Behrooz; Lawson, Wallace Edgar] USN, Res Lab, Washington, DC 20375 USA.
RP Kamgar-Parsi, B (reprint author), USN, Res Lab, Washington, DC 20375 USA.
NR 6
TC 0
Z9 0
U1 1
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8131-3
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7667
AR 766706
DI 10.1117/12.855707
PG 7
WC Mathematical & Computational Biology; Optics
SC Mathematical & Computational Biology; Optics
GA BSP46
UT WOS:000285289800006
ER
PT J
AU Iyer, MR
Lee, YS
Deschamps, JR
Rothman, RB
Dersch, CM
Jacobson, AE
Rice, KC
AF Iyer, Malliga R.
Lee, Yong Sok
Deschamps, Jeffrey R.
Rothman, Richard B.
Dersch, Christina M.
Jacobson, Arthur E.
Rice, Kenner C.
TI Probes for narcotic receptor mediated phenomena. 40. N-Substituted
cis-4a-ethyl-1,2,3,4,4a,9a-hexahydrobenzofuro[2,3-c]pyridin-8-ols
SO BIOORGANIC & MEDICINAL CHEMISTRY
LA English
DT Article
DE Synthesis; Opioid receptor binding; N-substituted
cis-4a-ethyl-1,2,3,4,4a,9a-hexahydrobenzofuro[2,3-c]pyridin-8-ols;
Oxide-bridged phenylmorphans; Geometry optimization; Superposition
ID OXIDE-BRIDGED PHENYLMORPHANS; PHENETHYL ANALOGS; IN-VITRO; AFFINITY;
ISOMERS; 5-(META-HYDROXYPHENYL)MORPHAN; MORPHINE; AGONISTS
AB A series of N-substituted rac-cis-4a-ethyl-1,2,3,4,4a, 9a-hexahydrobenzofuro[2,3-c]pyridin-8-ols have been prepared using a simple synthetic route previously designed for synthesis of related cis-2-methyl-4a-alkyl-1,2,3,4,4a,9a-hexahydrobenzofuro[2,3-c]pyridin-6-ols. The new phenolic compounds, where the aromatic hydroxy moiety is situated ortho to the oxygen atom in the oxide-bridged ring, do not interact as well as the pyridin-6-ols with opioid receptors. The N-para-fluorophenethyl derivative had the highest mu-opioid receptor affinity of the examined compounds (K(i) = 0.35 mu M). Published by Elsevier Ltd.
C1 [Iyer, Malliga R.; Jacobson, Arthur E.; Rice, Kenner C.] Natl Inst Drug Abuse, Drug Design & Synth Sect, Chem Biol Res Branch, Bethesda, MD 20892 USA.
[Iyer, Malliga R.; Jacobson, Arthur E.; Rice, Kenner C.] NIAAA, NIH, Dept Hlth & Human Serv, Bethesda, MD 20892 USA.
[Lee, Yong Sok] NIH, Ctr Mol Modeling, Div Computat Biosci, CIT,Dept Hlth & Human Serv, Bethesda, MD 20892 USA.
[Deschamps, Jeffrey R.] USN, Res Lab, Struct Matter Lab, Washington, DC 20375 USA.
[Rothman, Richard B.; Dersch, Christina M.] Natl Inst Drug Abuse, Clin Psychopharmacol Sect, Chem Biol Res Branch, Addict Res Ctr,NIH,Dept Hlth & Human Serv, Baltimore, MD 21224 USA.
RP Rice, KC (reprint author), Natl Inst Drug Abuse, Drug Design & Synth Sect, Chem Biol Res Branch, 5625 Fishers Lane,Room 4N03, Bethesda, MD 20892 USA.
EM kr21f@nih.gov
OI Deschamps, Jeffrey/0000-0001-5845-0010
FU Intramural NIH HHS [Z99 DA999999]; NIDA NIH HHS [Y01 DA006002,
Y1-DA6002]
NR 27
TC 5
Z9 5
U1 0
U2 1
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0968-0896
J9 BIOORGAN MED CHEM
JI Bioorg. Med. Chem.
PD JAN 1
PY 2010
VL 18
IS 1
BP 91
EP 99
DI 10.1016/j.bmc.2009.11.022
PG 9
WC Biochemistry & Molecular Biology; Chemistry, Medicinal; Chemistry,
Organic
SC Biochemistry & Molecular Biology; Pharmacology & Pharmacy; Chemistry
GA 534JJ
UT WOS:000272892100010
PM 20005115
ER
PT J
AU Kim, Y
Best, RB
Mittal, J
AF Kim, Youngchan
Best, Robert B.
Mittal, Jeetain
TI Replica Exchange Simulations For Macromolecular Crowding Effects on
Multiprotein Binding
SO BIOPHYSICAL JOURNAL
LA English
DT Meeting Abstract
C1 [Kim, Youngchan] Naval Res Lab, Washington, DC USA.
[Best, Robert B.] Univ Cambridge, Cambridge, England.
[Mittal, Jeetain] Lehigh Univ, Bethlehem, PA 18015 USA.
RI Best, Robert/H-7588-2016
OI Best, Robert/0000-0002-7893-3543
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
J9 BIOPHYS J
JI Biophys. J.
PD JAN
PY 2010
VL 98
IS 3
SU 1
BP 57A
EP 57A
PG 1
WC Biophysics
SC Biophysics
GA V29QD
UT WOS:000208762000304
ER
PT J
AU Yavlovich, A
Singh, A
Jang, H
Nussinov, R
Puri, A
Blumenthal, R
AF Yavlovich, Amichai
Singh, Alok
Jang, Hyunbum
Nussinov, Ruth
Puri, Anu
Blumenthal, Robert
TI Light-Induced Permeability Changes in Liposomes Containing
Photo-Polymerizable Phospholipids
SO BIOPHYSICAL JOURNAL
LA English
DT Meeting Abstract
C1 [Yavlovich, Amichai; Jang, Hyunbum; Nussinov, Ruth; Puri, Anu; Blumenthal, Robert] NCI, NIH, Frederick, MD 21701 USA.
[Singh, Alok] Naval Res Lab, Washington, DC 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
J9 BIOPHYS J
JI Biophys. J.
PD JAN
PY 2010
VL 98
IS 3
SU 1
BP 602A
EP 602A
PG 1
WC Biophysics
SC Biophysics
GA V29QD
UT WOS:000208762006002
ER
PT J
AU Tomori, T
Hupalo, D
Teranishi, K
Michaud, S
Hammett, M
Freilich, D
McCarron, R
Arnaud, F
AF Tomori, Toshiki
Hupalo, Daniel
Teranishi, Kohsuke
Michaud, Sarah
Hammett, Mike
Freilich, Daniel
McCarron, Richard
Arnaud, Francoise
TI Evaluation of coagulation stages of hemorrhaged swine: comparison of
thromboelastography and rotational elastometry
SO BLOOD COAGULATION & FIBRINOLYSIS
LA English
DT Article
DE coagulation; coagulopathy; swine; thromboelastography;
thromboelastometry; trauma
ID UNCONTROLLED HEMORRHAGE; OXYGEN CARRIER; THROMBELASTOGRAPHY;
RESUSCITATION; HBOC-201; ROTEM(R); INJURY; RFVIIA; BLOOD; MODEL
AB Thromboelastography (TEG) or rotational thromboelastometry (ROTEM) assesses blood viscoelastic properties and clotting kinetics that can be measured by Haemoscope TEG and Pentapharm ROTEM devices using slightly different methodologies. These devices were compared by measuring blood samples associated with various degrees of coagulopathy. Blood samples, collected from swine undergoing three types of severe injury and resuscitation protocol resulting in normal, hypercoagulopathy, and hypocoagulopathy, were assessed with TEG or ROTEM before the surgical procedures, and after injury, fluid resuscitation, and simulated hospital phase. Standard clotting parameters were compared by Student's t-test at a significance of a P value less than 0.05. Regression analysis indicated a positive correlation between TEG and ROTEM for reaction time (R), clotting rate (K), and maximum amplitude (M,,) parameters. With samples of normal coagulation, R (440 +/- 136 vs. 391 +/- 73 s), K (99 +/- 39 vs. 81 +/- 20 s), and M(a) (74 +/- 4 vs. 69 +/- 5 mm) were higher, whereas (alpha) (68 +/- 8 vs. 75 +/- 3 mm) was lower with TEG than ROTEM respectively; a P value is less than 0.05. The magnitude of changes from baseline in hypercoagulable or hypocoagulable samples due to level of injury was equivalent with TEG and ROTEM indicating comparable use of the instruments. However, when samples were extremely hypocoagulopathic due to resuscitation fluid, the TEG values could not be readily determined. Overall, TEG readings were higher than ROTEM readings; this disparity between the two instruments was attenuated with hypercoaguable samples. Both devices yielded similar information regarding the status of coagulation related to trauma. Because of operating characteristics, the same instrument should be used for monitoring the same patient or study. Blood Coagul Fibrinolysis 21:20-27 (C) 2010 Wolters Kluwer Health | Lippincott Williams & Wilkins.
C1 [Tomori, Toshiki; Hupalo, Daniel; Teranishi, Kohsuke; Michaud, Sarah; Hammett, Mike; Freilich, Daniel; McCarron, Richard; Arnaud, Francoise] USN, Med Res Ctr, Dept Trauma & Resuscitat Med, Silver Spring, MD 20910 USA.
[Freilich, Daniel; McCarron, Richard; Arnaud, Francoise] Uniformed Serv Univ Hlth Sci, Dept Surg, Bethesda, MD 20814 USA.
RP Arnaud, F (reprint author), USN, Med Res Ctr, Dept Trauma & Resuscitat Med, 503 Robert Grant Ave, Silver Spring, MD 20910 USA.
EM francoise.arnaud@med.navy.mil
FU BUMED [604771N.9737.001.A0315]; MARCORPS [26623M.162M.A0607]
FX Research effort was Supported by BUMED #604771N.9737.001.A0315 and
MARCORPS #26623M.162M.A0607.
NR 19
TC 24
Z9 24
U1 0
U2 4
PU LIPPINCOTT WILLIAMS & WILKINS
PI PHILADELPHIA
PA 530 WALNUT ST, PHILADELPHIA, PA 19106-3621 USA
SN 0957-5235
J9 BLOOD COAGUL FIBRIN
JI Blood Coagul. Fibrinolysis
PD JAN
PY 2010
VL 21
IS 1
BP 20
EP 27
DI 10.1097/MBC.0b013e32833113e9
PG 8
WC Hematology
SC Hematology
GA 544XE
UT WOS:000273692800005
PM 20010092
ER
PT S
AU Caldwell, JD
Anderson, TJ
Hobart, KD
Jernigan, GG
Culbertson, JC
Tadjer, MJ
Kub, FJ
Tedesco, JL
Hite, JK
Mastro, MA
Myers-Ward, RL
Eddy, CR
Campbell, PM
Gaskill, DK
AF Caldwell, Joshua D.
Anderson, Travis J.
Hobart, Karl D.
Jernigan, Glenn G.
Culbertson, James C.
Tadjer, Marko J.
Kub, Fritz J.
Tedesco, Joseph L.
Hite, Jennifer K.
Mastro, Michael A.
Myers-Ward, Rachael L.
Eddy, Charles R., Jr.
Campbell, Paul M.
Gaskill, D. Kurt
BE Pribat, D
Lee, YH
Razeghi, M
TI Epitaxial Graphene: Dry Transfer and Materials Characterization
SO CARBON NANOTUBES, GRAPHENE, AND ASSOCIATED DEVICES III
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Carbon Nanotubes, Graphene, and Associated Devices III
CY AUG 01-04, 2010
CL San Diego, CA
SP SPIE
DE epitaxial graphene; dry transfer; silicon carbide; Raman; XPS; Hall
effect
ID FILMS; RAMAN; TRANSISTORS; GRAPHITE
AB Epitaxial graphene (EG) grown on the carbon-face of SiC has been shown to exhibit higher carrier mobilities in comparison graphene grown via most other methods, while also remaining amenable to wafer-scale growth and fabrication. The ability to transfer large area (>mm(2)), continuous graphene films to arbitrary substrates while maintaining the electrical and structural integrity of the film is desirable. We demonstrate the dry transfer of EG from the C-face of 4H-SiC onto SiO2, GaN and Al2O3 substrates using thermal release tape both with and without a PMMA backing layer. Van der Pauw devices fabricated from C-face EG that were transferred to SiO2 and sapphire exhibited similar Hall effect mobilities, with an approximate three-fold reduction in carrier density when compared to devices fabricated on as-grown material. Raman spectroscopy illustrated that the optimized transfer process did not adversely affect the material quality, while XPS was used to both determine the transfer efficiency as well as to observe the presence of atomic silicon within the as-grown EG films. This latter observation may provide insight into the identity of the native dopant within these materials and/or a point defect that could be limiting carrier mobility.
C1 [Caldwell, Joshua D.; Anderson, Travis J.; Hobart, Karl D.; Jernigan, Glenn G.; Culbertson, James C.; Tadjer, Marko J.; Kub, Fritz J.; Tedesco, Joseph L.; Hite, Jennifer K.; Mastro, Michael A.; Myers-Ward, Rachael L.; Eddy, Charles R., Jr.; Campbell, Paul M.; Gaskill, D. Kurt] USN, Res Lab, Div Elect Sci & Technol, Washington, DC 20375 USA.
RP Caldwell, JD (reprint author), USN, Res Lab, Div Elect Sci & Technol, 4555 Overlook Ave SW, Washington, DC 20375 USA.
RI Caldwell, Joshua/B-3253-2008; Hite, Jennifer/L-5637-2015
OI Caldwell, Joshua/0000-0003-0374-2168; Hite, Jennifer/0000-0002-4090-0826
NR 23
TC 0
Z9 0
U1 2
U2 25
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8257-0
J9 PROC SPIE
PY 2010
VL 7761
AR 77610N
DI 10.1117/12.860676
PG 7
WC Nanoscience & Nanotechnology; Optics; Physics, Applied
SC Science & Technology - Other Topics; Optics; Physics
GA BSU49
UT WOS:000285828000009
ER
PT J
AU Ferguson, MA
Needleman, M
Mitchell, ES
Carter, LI
Bustamante, AI
Love, KM
Curran, MJ
AF Ferguson, Michael A.
Needleman, Matthew
Mitchell, Eric S.
Carter, Luther I.
Bustamante, Alexander I.
Love, Kathleen M.
Curran, Michael J.
TI A History of Prior Bare Metal Stent Restenosis Is Associated with Major
Adverse Cardiac Events in Subsequent Bare Metal Stenting of de novo
Coronary Lesions
SO CARDIOLOGY
LA English
DT Article
DE Coronary lesion; Bare metal stent; Restenosis; Major adverse cardiac
events
ID ARTERIES; IMPLANTATION; PLACEMENT
AB Objective: To investigate the risk of major adverse cardiac events (MACE) in patients with a history of bare metal stent (BMS) restenosis who undergo subsequent bare metal stenting of a geographically distinct, de novo coronary lesion. Methods: We conducted a retrospective review of 72 BMS procedures performed in geographically distinct, de novo coronary lesions in patients with a history of previous BMS placement at least 3 months prior to the second, index stent procedure. Patients with a history of in-stent restenosis (ISR) were compared with those who had no ISR in their initial stent. Results: Restenosis in the initial BMS was associated with a significant increase in MACE after placement of the index BMS (OR 20.0, 95% CI 3.86-103.58, p < 0.0001). This association was independent of traditional clinical and angio-graphic risk factors for restenosis. Conclusions: Restenosis of a previously placed BMS is strongly associated with MACE after placement of a subsequent BMS in a de novo coronary lesion. Copyright (C) 2010 S. Karger AG, Basel
C1 [Ferguson, Michael A.] Natl Naval Med Ctr, Dept Cardiol, Bethesda, MD 20889 USA.
[Mitchell, Eric S.] USN, Med Ctr, Portsmouth, VA USA.
[Carter, Luther I.; Love, Kathleen M.] USN, Med Ctr, San Diego, CA 92152 USA.
RP Ferguson, MA (reprint author), Natl Naval Med Ctr, Dept Cardiol, 8901 Wisconsin Ave, Bethesda, MD 20889 USA.
EM drmfergus@yahoo.com
NR 18
TC 2
Z9 2
U1 0
U2 1
PU KARGER
PI BASEL
PA ALLSCHWILERSTRASSE 10, CH-4009 BASEL, SWITZERLAND
SN 0008-6312
J9 CARDIOLOGY
JI Cardiology
PY 2010
VL 116
IS 3
BP 190
EP 193
DI 10.1159/000319472
PG 4
WC Cardiac & Cardiovascular Systems
SC Cardiovascular System & Cardiology
GA 635VG
UT WOS:000280684500011
PM 20689275
ER
PT S
AU Munoz-Avila, H
Jaidee, U
Aha, DW
Carter, E
AF Munoz-Avila, Hector
Jaidee, Ulit
Aha, David W.
Carter, Elizabeth
BE Bichindaritz, I
Montani, S
TI Goal-Driven Autonomy with Case-Based Reasoning
SO CASE-BASED REASONING RESEARCH AND DEVELOPMENT, 18TH INTERNATIONAL
CONFERENCE ON CASE-BASED REASONING, ICCBR 2010
SE Lecture Notes in Artificial Intelligence
LA English
DT Proceedings Paper
CT 18th International Conference on Case-Based Reasoning
CY JUL 19-22, 2010
CL Alessandria, ITALY
SP Fondazione Cassa Risparmio Torino, Empolis, Italian Assoc Artificial Intelligence, Univ Piemonte Orientale A Avogadro, City Alessandria
AB The vast majority of research on AI planning has focused on automated plan recognition, in which a planning agent is provided with a set of inputs that include an initial goal (or set of goals). In this context, the goal is presumed to be static; it never changes, and the agent is not provided with the ability to reason about whether it should change this goal. For some tasks in complex environments, this constraint is problematic; the agent will not be able to respond to opportunities or plan execution failures that would benefit from focusing on a different goal. Goal driven autonomy (GDA) is a reasoning framework that was recently introduced to address this limitation; GDA systems perform anytime reasoning about what goal(s) should be satisfied [4]. Although promising, there are natural roles that case-based reasoning (CBR) can serve in this framework, but no such demonstration exists. In this paper, we describe the GDA framework and describe an algorithm that uses CBR to support it. We also describe an empirical study with a multiagent gaming environment in which this CBR algorithm outperformed a rule-based variant of GDA as well as a non-GDA agent that is limited to dynamic replanning.
C1 [Munoz-Avila, Hector; Jaidee, Ulit; Carter, Elizabeth] Lehigh Univ, Dept Comp Sci & Engn, Bethlehem, PA 18015 USA.
[Aha, David W.] Naval Res Lab, Navy Ctr Appl Res Artificial Intelligence, Washington, DC 20375 USA.
RP Munoz-Avila, H (reprint author), Lehigh Univ, Dept Comp Sci & Engn, Bethlehem, PA 18015 USA.
EM munoz@cse.lehigh.edu; ulj208@lehigh.edu; david.aha@nrl.navy.mil;
eec209@lehigh.edu
FU NSF [0642882]; DARPA/IPTO
FX This work was sponsored by DARPA/IPTO and NSF (#0642882). Thanks to
PMMichael Cox for providing motivation and technical direction. The
views, opinions, and findings contained in this paper are those of the
authors and should not be interpreted as representing the official views
or policies, either expressed or implied, of DARPA or the DoD
NR 20
TC 5
Z9 5
U1 1
U2 4
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0302-9743
BN 978-3-642-14273-4
J9 LECT NOTES ARTIF INT
PY 2010
VL 6176
BP 228
EP +
PG 3
WC Computer Science, Artificial Intelligence; Computer Science, Information
Systems; Computer Science, Theory & Methods
SC Computer Science
GA BUF34
UT WOS:000289109000018
ER
PT J
AU Bevilacqua, R
Hall, JS
Romano, M
AF Bevilacqua, Riccardo
Hall, Jason S.
Romano, Marcello
TI Multiple spacecraft rendezvous maneuvers by differential drag and low
thrust engines
SO CELESTIAL MECHANICS & DYNAMICAL ASTRONOMY
LA English
DT Article
DE Multiple spacecraft rendezvous; Differential drag; Optimal control;
Autonomous rendezvous
ID SATELLITE CLUSTERS
AB A novel two-phase hybrid controller is proposed to optimize propellant consumption during multiple spacecraft rendezvous maneuvers in Low Earth Orbit. This controller exploits generated differentials in aerodynamic drag on each involved chaser spacecraft to effect a propellant-free trajectory near to the target spacecraft during the first phase of the maneuver, and then uses a fuel optimal control strategy via continuous low-thrust engines to effect a precision dock during the second phase. In particular, by varying the imparted aerodynamic drag force on each of the chaser spacecraft, relative differential accelerations are generated between each chaser and the target spacecraft along two of the three translational degrees of freedom. In order to generate this required differential, each chaser spacecraft is assumed to include a system of rotating flat panels. Additionally, each chaser spacecraft is assumed to have continuous low-thrust capability along the three translational degrees of freedom and full-axis attitude control. Sample simulations are presented to support the validity and robustness of the proposed hybrid controller to variations in the atmospheric density along with different spacecraft masses and ballistic coefficients. Furthermore, the proposed hybrid controller is validated against a complete nonlinear orbital model to include relative navigation errors typical of carrier-phase differential GPS (CDGPS). Limitations of the proposed controller appear relative to the target spacecraft's orbit eccentricity and a general characterization of the atmospheric density. Bounds on these variables are included to provide a framework within which the proposed hybrid controller can effect an extremely low propellant rendezvous of multiple chaser spacecraft to a desired target spacecraft.
C1 [Bevilacqua, Riccardo] USN, Postgrad Sch, Dept Mech & Astronaut Engn, Code MAE RB, Monterey, CA 93943 USA.
[Hall, Jason S.] USN, Postgrad Sch, Dept Mech & Astronaut Engn, Code AA JH, Monterey, CA 93943 USA.
[Romano, Marcello] USN, Postgrad Sch, Dept Mech & Astronaut Engn, Code MAE MR, Monterey, CA 93943 USA.
RP Bevilacqua, R (reprint author), USN, Postgrad Sch, Dept Mech & Astronaut Engn, Code MAE RB, 700 Dyer Rd, Monterey, CA 93943 USA.
EM rbevilac@nps.edu; jasonshall@ymail.com; mromano@nps.edu
RI Romano, Marcello/C-7972-2013
NR 20
TC 23
Z9 24
U1 0
U2 12
PU SPRINGER
PI DORDRECHT
PA VAN GODEWIJCKSTRAAT 30, 3311 GZ DORDRECHT, NETHERLANDS
SN 0923-2958
J9 CELEST MECH DYN ASTR
JI Celest. Mech. Dyn. Astron.
PD JAN
PY 2010
VL 106
IS 1
BP 69
EP 88
DI 10.1007/s10569-009-9240-3
PG 20
WC Astronomy & Astrophysics; Mathematics, Interdisciplinary Applications
SC Astronomy & Astrophysics; Mathematics
GA 530CQ
UT WOS:000272566900004
ER
PT S
AU Spanos, G
Rowenhorst, DJ
Chan, S
Olson, GB
AF Spanos, G.
Rowenhorst, D. J.
Chan, S.
Olson, G. B.
BE Hansen, N
Juul Jensen, D
Nielsen, SF
Poulsen, HF
Ralph, B
TI 3D CHARACTERIZATION OF MICROSTRUCTURES IN METALLIC SYSTEMS BY SERIAL
SECTIONING
SO CHALLENGES IN MATERIALS SCIENCE AND POSSIBILITIES IN 3D AND 4D
CHARACTERIZATION TECHNIQUES
SE Riso International Symposium on Material Science
LA English
DT Proceedings Paper
CT 31st Riso International Symposium on Materials Science
CY SEP 06-10, 2010
CL Roskilde, DENMARK
SP Mat Res Div, Civilingenior Frederik Leth Christiansens Almennyttige Fond, Fabrikant Mads Clausens Fond, Knud Hojgaards Fond, Otto Monsteds Fond
ID GRAIN-GROWTH; MODEL; DESIGN
AB Due to the importance of understanding the true morphology, distribution, and crystallography of materials microstructures in three dimensions, three dimensional (3D) microstructural characterization and analyses in materials science have been rapidly evolving within the last decade or so. This paper highlights some recent research from 3D microstructural investigations in two different metallic materials systems: titanium-based and ferrous-based based alloys. The focus of this paper is to demonstrate the methodology, utility, and importance of current 3D characterization and analysis tools based on serial sectioning techniques, and to show how the details of the experimental and image processing methodologies can differ significantly depending on the material system and microstructural features to be investigated. Additionally, some discussion is provided as to how the 3D experimental data and analyses are integrated into predictive computational methodologies to provide a critical foundation for accurate and efficient Integrated Computational Materials Engineering (ICME) approaches to materials and process design.
C1 [Spanos, G.; Rowenhorst, D. J.] US Naval Res Lab, Washington, DC USA.
[Chan, S.; Olson, G. B.] Northwestern Univ, Evanston, IL USA.
RP Spanos, G (reprint author), US Naval Res Lab, Washington, DC USA.
NR 34
TC 0
Z9 0
U1 0
U2 0
PU RISO NATL LABORATORY
PI ROSKILDE
PA POSTBOX 49, DK-4000 ROSKILDE, DENMARK
SN 0907-0079
BN 978-87-550-3833-2
J9 RISO MAT SCI
PY 2010
BP 159
EP 170
PG 12
WC Materials Science, Characterization & Testing
SC Materials Science
GA BE3NM
UT WOS:000371003400010
ER
PT S
AU Bernier, JV
Barton, NR
Brandes, MC
Lienert, U
Miller, MP
Mills, MJ
AF Bernier, J. V.
Barton, N. R.
Brandes, M. C.
Lienert, U.
Miller, M. P.
Mills, M. J.
BE Hansen, N
Juul Jensen, D
Nielsen, SF
Poulsen, HF
Ralph, B
TI EXPLORING CRYSTAL PLASTICITY VIA FAR-FIELD 3DXRD
SO CHALLENGES IN MATERIALS SCIENCE AND POSSIBILITIES IN 3D AND 4D
CHARACTERIZATION TECHNIQUES
SE Riso International Symposium on Material Science
LA English
DT Proceedings Paper
CT 31st Riso International Symposium on Materials Science
CY SEP 06-10, 2010
CL Roskilde, DENMARK
SP Mat Res Div, Civilingenior Frederik Leth Christiansens Almennyttige Fond, Fabrikant Mads Clausens Fond, Knud Hojgaards Fond, Otto Monsteds Fond
ID INDIVIDUAL GRAINS; STRAIN TENSOR; SINGLE-GRAIN; MICROSTRUCTURE;
POLYCRYSTALS; POWDERS
AB A specimen of Ti-7%A1 alloy was subject to tensile deformation in situ at APS 1-ID-C. Within it, a neighborhood containing 20 complete grains was indexed in the annealed state and subsequently tracked at several applied stresses during in situ loading, both preceding and following the macroscopic yield stress. The stress states of each grain were observed to reorient significantly post yield despite the fact that their average remained close to the applied uniaxial stress. To aid in interpreting the experimental results, a virtual realization of the neighborhood was created using a finite element mesh. Each individual grain was represented by similar to 5000 hexahedral elements. Ensemble averaged resolved shear stresses were calculated over the neighborhood from both the experimental and simulated data. Despite the lack of intra-granular resolution in the experiment and with the aid of the simulated data the resolved shear stresses projected on several slip system families are shown to statistically capture the associated critical resolved shear stresses. This important result implies that the far-field 3DXRD method may be applied to the study of specific of slip system activity in embedded neighborhoods of grains subject to thermomechanical processing in situ.
C1 [Bernier, J. V.; Barton, N. R.] Lawrence Livermore Natl Lab, Engn Technol Div, Livermore, CA USA.
[Brandes, M. C.] US Naval Res Lab, Washington, DC USA.
[Lienert, U.] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA.
[Miller, M. P.] Cornell Univ, Sibley Sch Mech & Aerosp Engn, Ithaca, NY 14853 USA.
[Mills, M. J.] Ohio State Univ, Dept Mat Sci & Engn, Columbus, OH 43210 USA.
RP Bernier, JV (reprint author), Lawrence Livermore Natl Lab, Engn Technol Div, Livermore, CA USA.
NR 19
TC 0
Z9 0
U1 0
U2 0
PU RISO NATL LABORATORY
PI ROSKILDE
PA POSTBOX 49, DK-4000 ROSKILDE, DENMARK
SN 0907-0079
BN 978-87-550-3833-2
J9 RISO MAT SCI
PY 2010
BP 251
EP 259
PG 9
WC Materials Science, Characterization & Testing
SC Materials Science
GA BE3NM
UT WOS:000371003400017
ER
PT S
AU Lyckegaard, A
Alpers, A
Ludwig, W
Fonda, RW
Margulies, L
Gotz, A
Sorensen, HO
Dey, SR
Poulsen, HF
Lauridsen, EM
AF Lyckegaard, A.
Alpers, A.
Ludwig, W.
Fonda, R. W.
Margulies, L.
Goetz, A.
Sorensen, H. O.
Dey, S. R.
Poulsen, H. F.
Lauridsen, E. M.
BE Hansen, N
Juul Jensen, D
Nielsen, SF
Poulsen, HF
Ralph, B
TI 3D GRAIN RECONSTRUCTION FROM BOXSCAN DATA
SO CHALLENGES IN MATERIALS SCIENCE AND POSSIBILITIES IN 3D AND 4D
CHARACTERIZATION TECHNIQUES
SE Riso International Symposium on Material Science
LA English
DT Proceedings Paper
CT 31st Riso International Symposium on Materials Science
CY SEP 06-10, 2010
CL Roskilde, DENMARK
SP Mat Res Div, Civilingenior Frederik Leth Christiansens Almennyttige Fond, Fabrikant Mads Clausens Fond, Knud Hojgaards Fond, Otto Monsteds Fond
ID X-RAY-DIFFRACTION; CONTRAST TOMOGRAPHY; POLYCRYSTALS; BEAM; MAPS
AB A method for reconstructing the 3D shape of a single grain in a polycrystal from far-field diffraction data is presented. The reconstruction is performed using an iterative algorithm, algebraic reconstruction technique (ART), to solve a linear system of equations obtained from data from the Boxscan technique. The Boxscan technique is a 3D X-ray diffraction type scanning technique, which in geometric tomography terms provides 2-dimensional X-rays of the object as data. In this paper, we report on the first experimental 3D grain shape reconstruction based on a beta-titanium sample. By comparing our results to high resolution phase contrast tomography, we find that the average error on the position of the grain boundary in this sample is 2.7 micrometers for a grain radius of 17 micrometers. This result is similar to other current methods.
C1 [Lyckegaard, A.; Alpers, A.; Poulsen, H. F.; Lauridsen, E. M.] Riso DTU, Mat Res Div, Ctr Fundamental Res Met Struct Dimens 4, DK-4000 Roskilde, Denmark.
[Ludwig, W.; Goetz, A.] European Synchrotron Radiat Facil, F-38043 Grenoble, France.
[Fonda, R. W.] Naval Res Lab, Washington, DC 20375 USA.
[Margulies, L.] Brookhaven Natl Lab, Natl Synchrotron Light Source 2, Upton, NY 11973 USA.
[Sorensen, H. O.] Univ Copenhagen, Dept Chem, DK-21000 Copenhagen O, Denmark.
[Dey, S. R.] Ruhr Univ Bochum, Fac Mech Engn, Inst Mat, D-44801 Bochum, Germany.
RP Lyckegaard, A (reprint author), Riso DTU, Mat Res Div, Ctr Fundamental Res Met Struct Dimens 4, DK-4000 Roskilde, Denmark.
NR 15
TC 0
Z9 0
U1 0
U2 0
PU RISO NATL LABORATORY
PI ROSKILDE
PA POSTBOX 49, DK-4000 ROSKILDE, DENMARK
SN 0907-0079
BN 978-87-550-3833-2
J9 RISO MAT SCI
PY 2010
BP 329
EP 336
PG 8
WC Materials Science, Characterization & Testing
SC Materials Science
GA BE3NM
UT WOS:000371003400027
ER
PT S
AU Rowenhorst, DJ
Lewis, AC
Spanos, G
AF Rowenhorst, D. J.
Lewis, A. C.
Spanos, G.
BE Hansen, N
Juul Jensen, D
Nielsen, SF
Poulsen, HF
Ralph, B
TI THE ANALYSIS OF GRAIN BOUNDARY CURVATURE AND CRYSTALLOGRAPHY OF
beta-GRAINS IN TI-21S
SO CHALLENGES IN MATERIALS SCIENCE AND POSSIBILITIES IN 3D AND 4D
CHARACTERIZATION TECHNIQUES
SE Riso International Symposium on Material Science
LA English
DT Proceedings Paper
CT 31st Riso International Symposium on Materials Science
CY SEP 06-10, 2010
CL Roskilde, DENMARK
SP Mat Res Div, Civilingenior Frederik Leth Christiansens Almennyttige Fond, Fabrikant Mads Clausens Fond, Knud Hojgaards Fond, Otto Monsteds Fond
ID 5 MACROSCOPIC PARAMETERS; MAGNESIA
AB In this paper we present the results from the serial-sectioning and 3-D reconstruction of beta-grains in Ti-215, producing a 3-D dataset consisting of 4200 grains. Mechanical polishing was used to remove the material between each section resulting in a section height of 1.5 mu m, with a total of 200 sections. A novel algorithm is developed that accurately reconstructs the grain surfaces which allows for the calculation of the surface normals and interfacial curvature of the grain boundaries. In addition, EBSD scans were collected on every 10th section providing the crystallographic orientation of each grain and the misoreination across the grain boundaries. The grain boundary misorienation combined with the grain boundary normal provides the five macroscopic degrees of freedom needed to characterize the grain boundaries. We show that for low angle grain boundaries, the average curvature of the grain boundary is inversely proportional to the population of the boundary type within the sample.
C1 [Rowenhorst, D. J.; Lewis, A. C.; Spanos, G.] US Naval Res Lab, Washington, DC USA.
RP Rowenhorst, DJ (reprint author), US Naval Res Lab, Washington, DC USA.
NR 10
TC 0
Z9 0
U1 0
U2 0
PU RISO NATL LABORATORY
PI ROSKILDE
PA POSTBOX 49, DK-4000 ROSKILDE, DENMARK
SN 0907-0079
BN 978-87-550-3833-2
J9 RISO MAT SCI
PY 2010
BP 413
EP 420
PG 8
WC Materials Science, Characterization & Testing
SC Materials Science
GA BE3NM
UT WOS:000371003400038
ER
PT S
AU Furstenberg, R
Papantonakis, M
Kendziora, CA
Bubb, DM
Corgan, J
McGill, RA
AF Furstenberg, Robert
Papantonakis, Michael
Kendziora, Christopher A.
Bubb, Daniel M.
Corgan, Jeffrey
McGill, R. Andrew
BE Fountain III, AW
Gardner, PJ
TI Laser vaporization of trace explosives for enhanced non-contact
detection
SO CHEMICAL, BIOLOGICAL, RADIOLOGICAL, NUCLEAR, AND EXPLOSIVES (CBRNE)
SENSING XI
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Chemical, Biological, Radiological, Nuclear, and
Explosives (CBRNE) Sensing XI
CY APR 06-08, 2010
CL Orlando, FL
SP SPIE
DE Explosives detection; trace detection; infrared laser; quantum cascade
laser; laser heating; resonant heating; vapor plume; swabbing; ion
mobility spectrometry
ID AMMONIUM-NITRATE; TEMPERATURE
AB Trace explosives contamination is found primarily in the form of solid particulates on surfaces, due to the low vapor pressure of most explosives materials. Today, the standard sampling procedure involves physical removal of particulate matter from surfaces of interest. A variety of collection methods have been used including air-jetting or swabbing surfaces of interest. The sampled particles are typically heated to generate vapor for analysis in hand held, bench top, or portal detection systems. These sampling methods are time-consuming (and hence costly), require a skilled technician for optimal performance, and are inherently non-selective, allowing non-explosives particles to be co-sampled and analyzed. This can adversely affect the sensitivity and selectivity of detectors, especially those with a limited dynamic range. We present a new approach to sampling solid particles on a solid surface that is targeted, non-contact, and which selectively enhances trace explosive signatures thus improving the selectivity and sensitivity of existing detectors. Our method involves the illumination of a surface of interest with infrared laser light with a wavelength that matches a distinctive vibrational mode of an explosive. The resonant coupling of laser energy results in rapid heating of explosive particles and rapid release of a vapor plume. Neighboring particles unrelated to explosives are generally not directly heated as their vibrational modes are not resonant with the laser. As a result, the generated vapor plume includes a higher concentration of explosives than if the particles were heated with a non-selective light source ( e. g. heat lamp). We present results with both benchtop infrared lasers as well as miniature quantum cascade lasers.
C1 [Furstenberg, Robert; Papantonakis, Michael; Kendziora, Christopher A.; Bubb, Daniel M.; McGill, R. Andrew] USN, Res Lab, Washington, DC 20375 USA.
RP Papantonakis, M (reprint author), USN, Res Lab, Code 6365,4555 Overlook Ave SW, Washington, DC 20375 USA.
EM mikep@nrl.navy.mil
RI Papantonakis, Michael/G-3888-2012
NR 13
TC 3
Z9 3
U1 0
U2 6
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8129-0
J9 PROC SPIE
PY 2010
VL 7665
AR 76650Q
DI 10.1117/12.850385
PG 12
WC Remote Sensing; Optics
SC Remote Sensing; Optics
GA BSS35
UT WOS:000285626600020
ER
PT S
AU Gillis, D
Grun, J
Bowles, J
Lunsford, R
Nikitin, S
Manka, C
AF Gillis, David
Grun, Jacob
Bowles, Jeffrey
Lunsford, Robert
Nikitin, Sergei
Manka, Charles
BE Fountain III, AW
Gardner, PJ
TI Detection of Chemicals in Mixed, Two-Dimensional Raman Spectra
SO CHEMICAL, BIOLOGICAL, RADIOLOGICAL, NUCLEAR, AND EXPLOSIVES (CBRNE)
SENSING XI
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Chemical, Biological, Radiological, Nuclear, and
Explosives (CBRNE) Sensing XI
CY APR 06-08, 2010
CL Orlando, FL
SP SPIE
DE Raman spectroscopy; Target Detection; Mixed Samples
AB Recently, researchers at the Naval Research Laboratory have developed the SWORrD system for measuring two-dimensional Raman Spectra. The device consists of a tunable 2d ultraviolet laser that illuminates the sample at various wavelengths (210-300 nm) and collects a single Raman spectrum at each laser wavelength. The single spectra are combined to form a two-dimensional spectrum (laser wavelength by scattered wavenumber).
In this paper we introduce a novel method for the detection of known agents ('targets') within measured 2d spectra. Our method is bases on 'linear mixed pixel' techniques from hyperspectral imagery; in particular, we generalize the Adaptive Subspace Detector (ASD) to a form suitable for SWORrD samples. Our detector uses the individual laser runs to define a set of points within wavenumber space; the set of points corresponding to a 2d spectra defines a particular subspace that contains each material. These subspaces are then used with ASD to identify targets. We include experimental results using real-world data to illustrate our results.
C1 [Gillis, David; Grun, Jacob; Bowles, Jeffrey] USN, Res Lab, Washington, DC 20375 USA.
RP Gillis, D (reprint author), USN, Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA.
EM David.Gillis@nrl.navy.mil
RI Nikitin, Sergei/A-7156-2012
NR 3
TC 1
Z9 1
U1 1
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8129-0
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7665
AR 76651D
DI 10.1117/12.850253
PG 9
WC Remote Sensing; Optics
SC Remote Sensing; Optics
GA BSS35
UT WOS:000285626600042
ER
PT J
AU Biswas, D
Deschamps, JR
Keefer, LK
Hrabie, JA
AF Biswas, Debanjan
Deschamps, Jeffrey R.
Keefer, Larry K.
Hrabie, Joseph A.
TI Nitrogen-bound diazeniumdiolated amidines
SO CHEMICAL COMMUNICATIONS
LA English
DT Article
ID NITRIC-OXIDE DONORS; FUNCTIONAL-GROUP; JS-K; CHEMISTRY; PRODRUGS;
ANALOGS; CARBON; IONS
AB In contrast to amidines bearing ionizable alpha-CH bonds, which react with nitric oxide (NO) to add diazeniumdiolate groups at their alpha-carbons, benzamidine forms an N-bound diazeniumdiolate that can be further derivatized at the other amidine nitrogen and/or the terminal oxygen to form caged NO compounds as potential NO prodrugs.
C1 [Biswas, Debanjan; Keefer, Larry K.] NCI, Chem Sect, Comparat Carcinogenesis Lab, Frederick, MD 21702 USA.
[Deschamps, Jeffrey R.] USN, Res Lab, Ctr Biomol Sci & Engn, Washington, DC 20375 USA.
[Hrabie, Joseph A.] NCI, Basic Sci Program, SAIC Frederick Inc, Frederick, MD 21702 USA.
RP Biswas, D (reprint author), NCI, Chem Sect, Comparat Carcinogenesis Lab, Frederick, MD 21702 USA.
EM biswasd@mail.nih.gov; hrabiej@mail.nih.gov
RI Keefer, Larry/N-3247-2014;
OI Keefer, Larry/0000-0001-7489-9555; Deschamps,
Jeffrey/0000-0001-5845-0010
FU National Cancer Institute, National Institutes of Health
[HHSN261200800001E]; National Institute on Drug Abuse [Y1-DA6002]; NIH,
National Cancer Institute, Center for Cancer Research
FX This project has been funded with Federal funds from the National Cancer
Institute, National Institutes of Health, under contract
HHSN261200800001E, and by the Intramural Research Program of the NIH,
National Cancer Institute, Center for Cancer Research. Crystallographic
studies were supported by the National Institute on Drug Abuse under
contract Y1-DA6002.
NR 17
TC 4
Z9 5
U1 1
U2 8
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1359-7345
J9 CHEM COMMUN
JI Chem. Commun.
PY 2010
VL 46
IS 31
BP 5799
EP 5801
DI 10.1039/c0cc00849d
PG 3
WC Chemistry, Multidisciplinary
SC Chemistry
GA 633PE
UT WOS:000280514500052
PM 20589293
ER
PT J
AU Guo, Y
Tao, GH
Zeng, Z
Gao, HX
Parrish, DA
Shreeve, JM
AF Guo, Yong
Tao, Guo-Hong
Zeng, Zhuo
Gao, Haixiang
Parrish, Damon A.
Shreeve, Jean'ne M.
TI Energetic Salts Based on Monoanions of N,N-Bis(1H-tetrazol-5-yl)amine
and 5,5 '-Bis(tetrazole)
SO CHEMISTRY-A EUROPEAN JOURNAL
LA English
DT Article
DE density functional calculations; energetic materials; nitrogen-rich
salts; NMR spectroscopy; tetrazoles
ID NITROGEN-RICH SALTS; ACCURATE THERMOCHEMICAL PROPERTIES; IONIC LIQUIDS;
CRYSTAL-STRUCTURE; CARBON NITRIDES; COORDINATION POLYMERS;
MAGNETIC-PROPERTIES; DENSITY; DERIVATIVES; CHEMISTRY
AB High-density energetic salts that contain nitrogen-rich cations and the 5-(tetrazol-5-ylamino)tetrazolate (HBTA(-)) or the 5-(tetrazol-5-yl)tetrazolate (HBT(-)) anion were readily synthesized by the metathesis reactions of sulfate salts with barium compounds, such as bis[5-(tetrazol-5-ylamino)tetrazolate] (Ba(HBTA)(2)), barium iminobis(5-tetrazolate) (BaBTA), or barium 5,5'-bis(tetrazolate) (BaBT) in aqueous solution. All salts were fully characterized by IR spectroscopy, multinuclear ((1)H, (13)C, (15)N) NMR spectroscopy, elemental analyses, density, differential scanning calonmetry (DSC), and impact sensitivity. Ba(HBTA)(2)center dot 4 H(2)O crystallizes in the triclinic space group P(1)(-), as determined by single-crystal X-ray diffraction, with a density of 2.177 g cm(-3). The densities of the other organic energetic salts range between 1.55 and 1.75 g cm-3 as measured by a gas pycnometer. The detonation pressure (P) values calculated for these salts range from 19.4 to 33.6 GPa, and the detonation velocities (v(D)) range from 7677 to 9487 m s(-1), which make them competitive energetic materials. Solid-state (13)C NMR spectroscopy was used as an effective technique to determine the structure of the products that were obtained from the metathesis reactions of biguanidinium sulfate with barium immobis(5-tetrazolate) (BaBTA). Thus, the structure was determined as an HBTA salt by the comparison of its solid-state (13)C NMR spectroscopy with those of ammonium 5-(tetrazol-5-ylamino)tetrazolate (AHBTA) and diammonium iminobis(5-tetrazolate) (A(2)BTA).
C1 [Guo, Yong; Tao, Guo-Hong; Zeng, Zhuo; Gao, Haixiang; Shreeve, Jean'ne M.] Univ Idaho, Dept Chem, Moscow, ID 83844 USA.
[Parrish, Damon A.] USN, Res Lab, Washington, DC 20375 USA.
RP Shreeve, JM (reprint author), Univ Idaho, Dept Chem, Moscow, ID 83844 USA.
FU DTRA [HDTRA1-(07-1-0024]; NSF [CHE-0315275]; ONR [N00014-06-1-1032]
FX The authors gratefully acknowledge the support of DTRA
(HDTRA1-(07-1-0024). NSF (CHE-0315275). and ONR (N00014-06-1-1032)
NR 125
TC 83
Z9 87
U1 3
U2 44
PU WILEY-BLACKWELL
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 0947-6539
J9 CHEM-EUR J
JI Chem.-Eur. J.
PY 2010
VL 16
IS 12
BP 3753
EP 3762
DI 10.1002/chem.200902951
PG 10
WC Chemistry, Multidisciplinary
SC Chemistry
GA 578WM
UT WOS:000276327300022
PM 20151439
ER
PT J
AU He, L
Tao, GH
Parrish, DA
Shreeve, JM
AF He, Ling
Tao, Guo-Hong
Parrish, Damon A.
Shreeve, Jean'ne M.
TI Nitrocyanamide-Based Ionic Liquids and Their Potential Applications as
Hypergolic Fuels
SO CHEMISTRY-A EUROPEAN JOURNAL
LA English
DT Article
DE combustion; explosives chemistry; hypergolic fuels; ionic liquids;
thermodynamics
ID NITROGEN-RICH SALTS; THEORETICAL-MODELS; PRIMARY EXPLOSIVES;
DINITRAMIDE; NITRATE; AZIDOFORMAMIDINIUM; TRANSITION; CATALYSIS;
SOLVENTS; SYSTEMS
AB Nitrocyanamide ionic liquids with substituted imidazolium, guanidinium, and tetrazolium cations have been synthesized and fully characterized. Aminoguanidinium nitrocvanamide (7) crystallizes in the triclinic system PI. The results obtained from theoretical calculations based on 7 are consistent with the single-crystal structure data. These ionic liquids exhibit desirable physicochemical properties, such as low melting points and good thermal stabilities. Furthermore, they are all impact insensitive materials. Their energetic performances, including heats of formation, detonation pressures, and detonation velocities, were studied by a combination of theoretical and empirical calculations. The ionic liquids 1-4 have large liquid ranges and low viscosities. They were shown to be promising candidates as hypergolic ionic liquids through the combustion tests with 100% HNO(3).
C1 [He, Ling; Tao, Guo-Hong; Shreeve, Jean'ne M.] Univ Idaho, Dept Chem, Moscow, ID 83844 USA.
[Parrish, Damon A.] USN, Res Lab, Washington, DC 20375 USA.
RP Shreeve, JM (reprint author), Univ Idaho, Dept Chem, Moscow, ID 83844 USA.
EM jshreeve@uidaho.edu
FU DTRA [HDTRA1-07-1-0024]; NSF; ONR [N00014-06-1-1032]; [CHE0315275]
FX The authors gratefully acknowledge the support of DTRA
(HDTRA1-07-1-0024), NSF (CHE0315275), and ONR (N00014-06-1-1032).
NR 77
TC 67
Z9 70
U1 5
U2 33
PU WILEY-BLACKWELL
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 0947-6539
J9 CHEM-EUR J
JI Chem.-Eur. J.
PY 2010
VL 16
IS 19
BP 5736
EP 5743
DI 10.1002/chem.200902651
PG 8
WC Chemistry, Multidisciplinary
SC Chemistry
GA 605LS
UT WOS:000278349700027
PM 20391567
ER
PT J
AU Zhang, YQ
Guo, Y
Joo, YH
Parrish, DA
Shreeve, JM
AF Zhang, Yanqiang
Guo, Yong
Joo, Young-Hyuk
Parrish, Damon A.
Shreeve, Jean'ne M.
TI 3,4,5-Trinitropyrazole-Based Energetic Salts
SO CHEMISTRY-A EUROPEAN JOURNAL
LA English
DT Article
DE detonation performance; energetic salts; heterocycles; polynitro
compounds; structure-property relationships
ID NITROGEN-RICH SALTS; IONIC LIQUIDS; N-NITROPYRAZOLES; DETONATIONS;
CHEMISTRY; 5-NITROTETRAZOLATE; 1,2,4-TRIAZOLIUM; REARRANGEMENT;
NITROFORMATE; EXPLOSIVES
AB High-density energetic salts that are comprised of nitrogen-rich cations and the 3,4,5-trinitropyrazolate anion were synthesized in high yield by neutralization or metathesis reactions. The resulting salts were fully characterized by (1)H, (13)C NMR, and IR spectroscopy; differential scanning calorimetry; and elemental analysis. Additionally, the structures of the 3,5-diaminotriazolium and triaminoguanidinium 3,4,5-trinitropyrazolates were confirmed by single-crystal X-ray diffraction. Based on the measured densities and calculated heats of formation, the detonation performances (pressure: 23.74-31.89 GPa; velocity: 7586-8543 ms(-1); Cheetah 5.0) of the 3,4,5-trinitropyrazolate salts are comparable with 1,3,5-triamino-2,4,6-trinitrobenzene (TATB; 31.15 GPa and 8114 ms(-1)). Impact sensitivities were determined to be no less than 35 J by hammer tests, which places these salts in the insensitive class.
C1 [Zhang, Yanqiang; Guo, Yong; Joo, Young-Hyuk; Shreeve, Jean'ne M.] Univ Idaho, Dept Chem, Moscow, ID 83844 USA.
[Parrish, Damon A.] USN, Res Lab, Washington, DC 20375 USA.
RP Shreeve, JM (reprint author), Univ Idaho, Dept Chem, Moscow, ID 83844 USA.
EM jshreeve@uidaho.edu
OI zhang, yan qiang/0000-0001-5577-0529
FU DTRA [HDTRA1-07-1-0024]; ONR [N00014-10-1-0097]
FX The authors gratefully acknowledge the support of DTRA
(HDTRA1-07-1-0024), and ONR (N00014-10-1-0097).
NR 72
TC 94
Z9 103
U1 3
U2 41
PU WILEY-BLACKWELL
PI MALDEN
PA COMMERCE PLACE, 350 MAIN ST, MALDEN 02148, MA USA
SN 0947-6539
J9 CHEM-EUR J
JI Chem.-Eur. J.
PY 2010
VL 16
IS 35
BP 10778
EP 10784
DI 10.1002/chem.201001243
PG 7
WC Chemistry, Multidisciplinary
SC Chemistry
GA 663ST
UT WOS:000282910900025
PM 20661962
ER
PT J
AU Cantwell, MG
Wilson, BA
Zhu, J
Wallace, GT
King, JW
Olsen, CR
Burgess, RM
Smith, JP
AF Cantwell, Mark G.
Wilson, Brittan A.
Zhu, Jun
Wallace, Gordon T.
King, John W.
Olsen, Curtis R.
Burgess, Robert M.
Smith, Joseph P.
TI Temporal trends of triclosan contamination in dated sediment cores from
four urbanized estuaries: Evidence of preservation and accumulation
SO CHEMOSPHERE
LA English
DT Article
DE Antimicrobial; Triclosan; Personal care products; Emerging contaminant
ID WATER TREATMENT PLANTS; WASTE-WATER; ORGANIC-COMPOUNDS; ENVIRONMENTAL
FATE; HUDSON RIVER; TRICLOCARBAN
AB Triclosan is an antimicrobial agent added to a wide array of consumer goods and personal care products. Through its use, it is introduced into municipal sewer systems where it is only partially removed during wastewater treatment. In this study, triclosan was measured in dated sediment cores from four urbanized estuaries in order to reconstruct temporal and spatial trends of accumulation. Measurable concentrations of triclosan first appeared in each of the sediment cores near 1964, which corresponds with the US patent issuance date of triclosan. The presence of triclosan at each of the study sites at or near the patent date indicates that long-term preservation is occurring in estuarine sediments. Temporal trends of triclosan at each location are unique, reflecting between site variability. Concentrations at one site climbed to as high as 400 ng g(-1), due in part. to local commercial production of triclosan. At two locations, levels of triclosan rise towards the surface of each core, suggesting increasing usage in recent years. One location adjacent to a major combined sewer overflow had high sediment concentrations of triclosan, confirming their potential as a source of triclosan to estuaries. Published by Elsevier Ltd.
C1 [Cantwell, Mark G.; Burgess, Robert M.] US EPA, Off Res & Dev, Natl Hlth Effects Environm Res Lab, Atlantic Ecol Div, Narragansett, RI 02882 USA.
[Wilson, Brittan A.] Texas A&M Int Univ, Dept Biol & Chem, Laredo, TX 78041 USA.
[Zhu, Jun; Wallace, Gordon T.; Olsen, Curtis R.] Univ Massachusetts, Dept Environm Earth & Ocean Sci, Boston, MA 02125 USA.
[King, John W.] Univ Rhode Isl, Grad Sch Oceanog, Narragansett, RI 02882 USA.
[Smith, Joseph P.] USN, Res Lab, Washington, DC 20375 USA.
RP Cantwell, MG (reprint author), US EPA, Off Res & Dev, Natl Hlth Effects Environm Res Lab, Atlantic Ecol Div, 27 Tarzwell Dr, Narragansett, RI 02882 USA.
EM cantwell.mark@epa.gov
NR 20
TC 40
Z9 40
U1 5
U2 28
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0045-6535
J9 CHEMOSPHERE
JI Chemosphere
PD JAN
PY 2010
VL 78
IS 4
BP 347
EP 352
DI 10.1016/j.chemosphere.2009.11.021
PG 6
WC Environmental Sciences
SC Environmental Sciences & Ecology
GA 550CL
UT WOS:000274105700001
PM 20006371
ER
PT J
AU Baqar, S
Tribble, DR
Carmolli, M
Sadigh, K
Poly, F
Porter, C
Larsson, CJ
Pierce, KK
Guerry, P
Darsley, M
Kirkpatrick, B
AF Baqar, Shahida
Tribble, David R.
Carmolli, Marya
Sadigh, Katrin
Poly, Frederic
Porter, Chad
Larsson, Catherine J.
Pierce, Kristen K.
Guerry, Patricia
Darsley, Michael
Kirkpatrick, Beth
CA Campylobacter Study Team
TI Recrudescent Campylobacter jejuni Infection in an Immunocompetent Adult
following Experimental Infection with a Well-Characterized Organism
SO CLINICAL AND VACCINE IMMUNOLOGY
LA English
DT Article
ID LINKED-IMMUNOSORBENT-ASSAY; ANTIBODY-RESPONSE; ENTERITIS; CHILDREN;
DIARRHEA; EXERCISE; CIPROFLOXACIN; EPIDEMIOLOGY; IMMUNOLOGY; IMMUNITY
AB The recrudescence of infection with Campylobacter jejuni after appropriate antibiotic treatment has not been previously reported in an immunocompetent adult. We present the complete clinical, microbiologic, and immunologic evaluation of a closely monitored healthy male with recrudescent C. jejuni infection occurring in the absence of immunodeficiency following experimental infection with a well-characterized strain. After antibiotic treatment, the initial infection was clinically cleared and microbiologically undetectable. Subsequently, two episodes of recrudescence occurred, with no change in in vitro antibiotic sensitivity being detected. The immune responses of the individual were compared to those of other participants in the experimental infection study: innate immune responses, including fecal cytokines and C-reactive protein, were intact; however, measures of Campylobacter-specific adaptive immune responses were absent, including serum antibodies, antibody-secreting cells, and in vitro gamma interferon responses. No primary or secondary immunodeficiency was identified. Recrudescent Campylobacter infections after treatment may be more common than has previously been appreciated. This work adds to our understanding of the human immune response to natural Campylobacter infection and reiterates the importance of pathogen-specific adaptive immune responses to this globally important pathogen.
C1 [Carmolli, Marya; Sadigh, Katrin; Larsson, Catherine J.; Pierce, Kristen K.; Kirkpatrick, Beth] Univ Vermont, Coll Med, Infect Dis Unit, Vaccine Testing Ctr, Burlington, VT 05405 USA.
[Baqar, Shahida; Tribble, David R.; Poly, Frederic; Porter, Chad; Guerry, Patricia] USN, Med Res Ctr, Silver Spring, MD USA.
[Baqar, Shahida; Tribble, David R.; Campylobacter Study Team] Uniformed Serv Univ Hlth Sci, Dept Prevent Med & Biometr, Bethesda, MD 20814 USA.
[Darsley, Michael] ACE Biosci, Hillerod, Denmark.
RP Kirkpatrick, B (reprint author), Univ Vermont, Coll Med, Infect Dis Unit, Vaccine Testing Ctr, 110 Stafford Hall,95 Carrigan Dr, Burlington, VT 05405 USA.
EM beth.kirkpatrick@uvm.edu
RI Guerry, Patricia/A-8024-2011
FU NIH [MO1 RR000109]; U. S. Navy Research and Development Command Work
Unit [RAD1. DA3. A0308]
FX The University of Vermont General Clinical Research Center received NIH
award MO1 RR000109. Support was also provided by the Naval Medical
Research Center and ACE Biosciences. The laboratory immunologic and
molecular biology studies were supported by U. S. Navy Research and
Development Command Work Unit 6000. RAD1. DA3. A0308.
NR 47
TC 10
Z9 10
U1 0
U2 3
PU AMER SOC MICROBIOLOGY
PI WASHINGTON
PA 1752 N ST NW, WASHINGTON, DC 20036-2904 USA
SN 1556-6811
J9 CLIN VACCINE IMMUNOL
JI Clin. Vaccine Immunol.
PD JAN
PY 2010
VL 17
IS 1
BP 80
EP 86
DI 10.1128/CVI.00252-09
PG 7
WC Immunology; Infectious Diseases; Microbiology
SC Immunology; Infectious Diseases; Microbiology
GA 539ED
UT WOS:000273235500009
PM 19923572
ER
PT J
AU Kellogg, M
Hollis, M
Gauthier, C
O'Brien, T
AF Kellogg, Mark
Hollis, Mark
Gauthier, Cheryl
O'Brien, Tom
TI Detection of Biological Agents Used for Terrorism: Are We Ready?
SO CLINICAL CHEMISTRY
LA English
DT Editorial Material
C1 [Kellogg, Mark] Childrens Hosp, Boston, MA 02115 USA.
[Kellogg, Mark] USA, Med Res Inst Infect Dis, Diagnost Syst Div, Frederick, MD USA.
[Hollis, Mark] MIT, Lincoln Lab, Lexington, MA 02173 USA.
[Gauthier, Cheryl] MIT, Dept Publ Hlth, Bioterrorism Response Lab, Boston, MA USA.
[O'Brien, Tom] Tetracore Inc, Rockville, MD USA.
[O'Brien, Tom] USN, Naval Med Res Inst, Dept Immunol, Biol Def Res Programg, Bethesda, MD 20084 USA.
RP Kellogg, M (reprint author), Childrens Hosp, 300 Longwood Ave, Boston, MA 02115 USA.
OI Kellogg, Mark/0000-0003-1868-2153
NR 0
TC 3
Z9 3
U1 0
U2 0
PU AMER ASSOC CLINICAL CHEMISTRY
PI WASHINGTON
PA 2101 L STREET NW, SUITE 202, WASHINGTON, DC 20037-1526 USA
SN 0009-9147
J9 CLIN CHEM
JI Clin. Chem.
PD JAN
PY 2010
VL 56
IS 1
BP 10
EP 15
DI 10.1373/clinchem.2009.139493
PG 6
WC Medical Laboratory Technology
SC Medical Laboratory Technology
GA 542BM
UT WOS:000273466300004
PM 19926772
ER
PT J
AU Sharif, MO
Fedorowicz, Z
Drews, P
Nasser, M
Dorri, M
Newton, T
Oliver, R
AF Sharif, Mohammad O.
Fedorowicz, Zbys
Drews, Peter
Nasser, Mona
Dorri, Mojtaba
Newton, Tim
Oliver, Richard
TI Interventions for the treatment of fractures of the mandibular condyle
SO COCHRANE DATABASE OF SYSTEMATIC REVIEWS
LA English
DT Review
ID CLOSED TREATMENT; SUBCONDYLAR FRACTURES; NONSURGICAL TREATMENT; OPEN
REDUCTION; MULTICENTER; METAANALYSIS; FIXATION
AB Background
Fractures of the condylar process account for between 25% and 35% of all mandibular fractures. Treatment options for fractures of the condyles consist of either the closed method or by open reduction with fixation. Complications may be associated with either treatment option; for the closed approach these can include malocclusion, particularly open bites, reduced posterior facial height and facial asymmetry in addition to chronic pain and reduced mobility. A cutaneous scar and temporary paralysis of the facial nerve are not infrequent complications associated with the open approach. There is a lack of consensus currently surrounding the indications for either surgical or non-surgical treatment of fractures of the mandibular condyle.
Objectives
To evaluate the effectiveness of interventions that can be used in the treatment of fractures of the mandibular condyle.
Search strategy
The databases searched were: the Cochrane Oral Health Group's Trials Register (to 12th March 2010), CENTRAL (The Cochrane Library 2010, Issue 2), MEDLINE (from 1950 to 12th March 2010), and EMBASE (from 1980 to 12th March 2010). The reference lists of all trials identified were cross checked for additional trials. Authors were contacted by electronic mail to ask for details of additional published and unpublished trials. There were no language restrictions and several articles were translated.
Selection criteria
Randomised controlled trials (RCTs) which included adults, over 18 years of age, with unilateral or bilateral fractures of the mandibular condyles. Any form of open or closed method of reduction and fixation was considered.
Data collection and analysis
Review authors screened trials for inclusion. Extracted data were to be synthesised using the fixed-effect model but if substantial clinical diversity was identified between the studies we planned to use the random-effects model with studies grouped by action and we would explore the heterogeneity between the included studies. Mean differences were to be calculated for continuous outcomes and risk ratios for dichotomous outcomes together with their 95% confidence intervals.
Main results
No high quality evidence matching the inclusion criteria was identified.
Authors' conclusions
No high quality evidence is available in relation to this review question and no conclusions could be reached about the effectiveness or otherwise of the two interventions considered in this review. A need for further well designed randomised controlled trials exists. The trialists should account for all losses to follow-up and assess patient related outcomes. They should also report the direct and indirect costs associated with the interventions.
C1 [Oliver, Richard] Univ Manchester, Dept Oral & Maxillofacial Surg, Sch Dent, Manchester M15 6FH, Lancs, England.
[Fedorowicz, Zbys] Minist Hlth, Bahrain Branch, UKCC, Awali, Bahrain.
[Sharif, Mohammad O.] Univ Manchester, Sch Dent, Manchester, Lancs, England.
[Drews, Peter] USN, San Diego Med Ctr, Dept Dent, San Diego, CA 92152 USA.
[Nasser, Mona] Inst Qual & Efficiency Hlth Care, Dept Hlth Informat, Cologne, Germany.
[Dorri, Mojtaba] UCL, Sch Med, Dept Epidemiol & Publ Hlth, London W1N 8AA, England.
[Newton, Tim] KCL Dent Inst, Div Hlth & Social Care Res, London, England.
RP Oliver, R (reprint author), Univ Manchester, Dept Oral & Maxillofacial Surg, Sch Dent, Higher Cambridge St, Manchester M15 6FH, Lancs, England.
EM richard.j.oliver@manchester.ac.uk
RI Fedorowicz, Zbys/C-6659-2008; Nasser, Mona/J-3601-2013
NR 27
TC 6
Z9 7
U1 0
U2 2
PU JOHN WILEY & SONS LTD
PI CHICHESTER
PA THE ATRIUM, SOUTHERN GATE, CHICHESTER PO19 8SQ, W SUSSEX, ENGLAND
SN 1469-493X
J9 COCHRANE DB SYST REV
JI Cochrane Database Syst Rev.
PY 2010
IS 4
AR CD006538
DI 10.1002/14651858.CD006538.pub2
PG 16
WC Medicine, General & Internal
SC General & Internal Medicine
GA 583OC
UT WOS:000276686300012
PM 20393948
ER
PT S
AU Delehanty, JB
Bradburne, CE
Boeneman, KE
Medintz, IL
Farrell, D
Pons, T
Mei, BC
Blanco-Canosa, JB
Dawson, PE
Mattoussi, H
AF Delehanty, James B.
Bradburne, Christopher E.
Boeneman, Kelly E.
Medintz, Igor L.
Farrell, Dorothy
Pons, Thomas
Mei, Bing C.
Blanco-Canosa, Juan B.
Dawson, Philip E.
Mattoussi, Hedi
BE Osinski, M
Parak, WJ
Jovin, TM
Yamamoto, K
TI Delivery of Quantum Dot Bioconjugates to the Cellular Cytosol: Release
from the endolysosomal system
SO COLLOIDAL QUANTUM DOTS FOR BIOMEDICAL APPLICATIONS V
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Colloidal Quantum Dots for Biomedical Applications V
CY JAN 23-25, 2010
CL San Francisco, CA
SP SPIE, Ocean Opt Inc
DE nanoassemblies; cell-penetrating peptide; cationic liposomes; polymer;
quantum dots; endocytosis
ID TAT-FUSION PROTEINS; IN-VIVO; INTRACELLULAR DELIVERY; LIVE CELLS;
MACROPINOCYTOSIS
AB To realize their full potential as intracellular imaging and sensing reagents, robust and efficient methods for the targeted cellular delivery of luminescent semiconductor quantum dots (QDs) must be developed. We have previously shown that QDs decorated with histidine-terminated polyarginine cell-penetrating peptides (CPP) are rapidly and specifically internalized via endocytosis by several mammalian cell lines with no cytotoxicity. Here we demonstrate the long-term intracellular stability and fate of these QD-peptide conjugates. We found that the QD-peptide conjugates remain sequestered within endolysosomal vesicles for up to three days after delivery. However, the CPP appeared to remain stably associated with the QD within these acidic vesicles over this time period. Hence, we explored a number of techniques to either actively deliver QDs directly to the cytosol or to facilitate the endosomal release of endocytosed QDs to the cytosol. Active methods (e. g., electroporation) delivered only modest amounts of QDs to the cytosol that appeared to form aggregates. Delivery of QDs using polymer-based transfection reagents resulted primarily in the endosomal sequestration of the QDs, although one commercial polymer tested delivered QDs to the cytosol but only after several days in culture and with a considerable degree of polymer-induced toxicity. Finally, a modular, amphiphilic peptide containing functionalities designed for cell penetration and vesicular membrane interaction demonstrated the ability to deliver QDs in a well-dispersed manner to the cytosol. This peptide mediated rapid QD uptake followed by a slower efficient endosomal release of the QDs to the cytosol that peaked at 48 hours post-delivery. Importantly, this QD-peptide conjugate elicited minimal cytotoxicity in two cell lines tested. A more detailed understanding of the mechanism of the peptide's uptake and endosomal escape attributes will lead to the design of further QD conjugates for targeted imaging and sensing applications.
C1 [Delehanty, James B.; Bradburne, Christopher E.; Boeneman, Kelly E.; Medintz, Igor L.] USN, Res Lab, Ctr Biomol Sci & Engn, Washington, DC 20375 USA.
RP Delehanty, JB (reprint author), USN, Res Lab, Ctr Biomol Sci & Engn, Code 6900,4555 Overlook Ave,SW, Washington, DC 20375 USA.
RI Gemmill, Kelly/G-2167-2012; Pons, Thomas/A-8667-2008; Parak, Wolfgang
J./M-3998-2014
OI Pons, Thomas/0000-0001-8800-4302; Parak, Wolfgang J./0000-0003-1672-6650
NR 19
TC 1
Z9 1
U1 0
U2 9
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-7971-6
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7575
AR 75750S
DI 10.1117/12.842434
PG 7
WC Engineering, Biomedical; Nanoscience & Nanotechnology; Optics
SC Engineering; Science & Technology - Other Topics; Optics
GA BSS17
UT WOS:000285581700016
ER
PT S
AU Escobar, S
Meadows, C
Meseguer, J
Santiago, S
AF Escobar, Santiago
Meadows, Catherine
Meseguer, Jose
Santiago, Sonia
BE Gritzalis, D
Preneel, B
Theoharidou, M
TI Sequential Protocol Composition in Maude-NPA
SO COMPUTER SECURITY-ESORICS 2010
SE Lecture Notes in Computer Science
LA English
DT Proceedings Paper
CT 15th European Symposium on Research in Computer Security
CY SEP 20-22, 2010
CL Athens, GREECE
SP Vodafone SA
AB Protocols do not work alone, but together, one protocol relying on another to provide needed services. Many of the problems in cryptographic protocols arise when such composition is done incorrectly or is not well understood. In this paper we discuss an extension to the Maude-NPA syntax and operational semantics to support dynamic sequential composition of protocols, so that protocols can be specified separately and composed when desired. This allows one to reason about many different compositions with minimal changes to the specification. Moreover, we show that, by a simple protocol transformation, we are able to analyze and verify this dynamic composition in the current Maude-NPA tool. We prove soundness and completeness of the protocol transformation with respect to the extended operational semantics, and illustrate our results on some examples.
C1 [Escobar, Santiago; Santiago, Sonia] Univ Politecn Valencia, DSIC ELP, Valencia, Spain.
[Meadows, Catherine] Naval Res Lab, Washington, DC USA.
[Meseguer, Jose] Univ Illinois, Champaign, IL USA.
RP Escobar, S (reprint author), Univ Politecn Valencia, DSIC ELP, Valencia, Spain.
EM sescobar@dsic.upv.es; meadows@itd.nrl.navy.mil; meseguer@cs.uiuc.edu;
ssantiago@dsic.upv.es
RI Escobar, Santiago/C-9589-2012
OI Escobar, Santiago/0000-0002-3550-4781
FU EU; Spanish MEC/MICINN [TIN 2007-68093-C02-02]; NSF [CNS 07-16638, CNS
09-04749]
FX S. Escobar and S. Santiago have been partially supported by the EU
(FEDER) and the Spanish MEC/MICINN under grant TIN 2007-68093-C02-02. J.
Meseguer has been supported by NSF Grants CNS 07-16638 and CNS 09-04749.
NR 22
TC 4
Z9 4
U1 0
U2 0
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0302-9743
BN 978-3-642-15496-6
J9 LECT NOTES COMPUT SC
PY 2010
VL 6345
BP 303
EP +
PG 3
WC Computer Science, Theory & Methods
SC Computer Science
GA BSZ32
UT WOS:000286151000019
ER
PT J
AU Li, SG
Cheng, LZ
Neta, B
AF Li, S. G.
Cheng, L. Z.
Neta, B.
TI Some fourth-order nonlinear solvers with closed formulae for multiple
roots
SO COMPUTERS & MATHEMATICS WITH APPLICATIONS
LA English
DT Article
DE Newton's method; Multiple roots; Nonlinear equations; Iterative methods;
Root finding
ID EQUATIONS; FAMILY
AB In this paper, we present six new fourth-order methods with closed formulae for finding multiple roots of nonlinear equations. The first four of them require one-function and three-derivative evaluation per iteration. The last two require one-function and two-derivative evaluation per iteration. Several numerical examples are given to show the performance of the presented methods compared with some known methods. Published by Elsevier Ltd
C1 [Li, S. G.; Cheng, L. Z.; Neta, B.] Natl Univ Def Technol, Sch Sci, Changsha 410073, Hunan, Peoples R China.
RP Neta, B (reprint author), USN, Postgrad Sch, Dept Appl Math, Monterey, CA 93943 USA.
EM lsg_998@yahoo.com.cn; bneta@nps.edu
RI Neta, Beny/B-1737-2009
FU National Natural Science Foundation of China [60573027, 60621003]
FX The second author's work was partially supported by the National Natural
Science Foundation of China (60573027 and 60621003).
NR 15
TC 32
Z9 32
U1 0
U2 4
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0898-1221
J9 COMPUT MATH APPL
JI Comput. Math. Appl.
PD JAN
PY 2010
VL 59
IS 1
BP 126
EP 135
DI 10.1016/j.camwa.2009.08.066
PG 10
WC Mathematics, Applied
SC Mathematics
GA 548XW
UT WOS:000274004500014
ER
PT J
AU Jangveladze, T
Kiguradze, Z
Neta, B
AF Jangveladze, Temur
Kiguradze, Zurab
Neta, Beny
TI Large time asymptotic and numerical solution of a nonlinear diffusion
model with memory
SO COMPUTERS & MATHEMATICS WITH APPLICATIONS
LA English
DT Article
DE System of nonlinear integro-differential equations; Large time behavior;
Finite difference scheme
ID MAGNETIC-FIELD; SUBSTANCE; SYSTEM
AB Large time behavior of solutions and finite difference approximation of a nonlinear system of integro-differential equations associated with the penetration of a magnetic field into a substance is studied. Two initial-boundary value problems are investigated: the first with homogeneous conditions on whole boundary and the second with nonhomogeneous boundary data on one side of lateral boundary. The rates of convergence are also given. Mathematical results presented show that there is a difference between stabilization rates of solutions with homogeneous and nonhomogeneous boundary conditions. The convergence of the corresponding finite difference scheme is also proved. The decay of the numerical solution is compared with the analytical results. Published by Elsevier Ltd
C1 [Neta, Beny] USN, Postgrad Sch, Dept Appl Math, Monterey, CA 93943 USA.
[Jangveladze, Temur; Kiguradze, Zurab] Ilia Chavchavadze State Univ, GE-0179 Tbilisi, Rep of Georgia.
[Jangveladze, Temur; Kiguradze, Zurab] Ivane Javakhishvili Tbilisi State Univ, GE-0186 Tbilisi, Rep of Georgia.
RP Neta, B (reprint author), USN, Postgrad Sch, Dept Appl Math, Monterey, CA 93943 USA.
EM byneta@gmail.com
RI Neta, Beny/B-1737-2009
NR 17
TC 6
Z9 6
U1 0
U2 1
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0898-1221
J9 COMPUT MATH APPL
JI Comput. Math. Appl.
PD JAN
PY 2010
VL 59
IS 1
BP 254
EP 273
DI 10.1016/j.camwa.2009.07.052
PG 20
WC Mathematics, Applied
SC Mathematics
GA 548XW
UT WOS:000274004500027
ER
PT B
AU Jordan, PM
Norton, GV
Chin-Bing, SA
Warn-Varnas, A
AF Jordan, P. M.
Norton, G. V.
Chin-Bing, S. A.
Warn-Varnas, A.
BE Sohrab, SH
Catrakis, HJ
Kobasko, N
TI On the Propagation of Finite-Amplitude Acoustic Waves in Mono-Relaxing
Media
SO CONTINUUM MECHANICS, FLUIDS, HEAT
SE WSEAS Mechanical Engineering Series
LA English
DT Proceedings Paper
CT 5th IASME/WSEAS International Conference on Continuum Mechanics/7th
WSEAS International Conference on Fluid Mechanics/7th WSEAS
International Conference on Heat and Mass Transfer
CY FEB 23-25, 2010
CL Univ Cambridge, Cambridge, ENGLAND
HO Univ Cambridge
DE Nonlinear acoustics; Abel's equation; Lambert W-function; kinematic-wave
theory
AB The propagation of finite-amplitude acoustic traveling waves in a class of mono-relaxing media is considered. The resulting associated ordinary differential equation (ODE), which is of the Abel type, is analyzed and exact, approximate, and asymptotic solutions are derived. In addition, numerical simulations are presented, special cases are discussed, and connections to other fields are noted. The analysis carried out here also serves to highlight some of the many applications of Abel's equation and the Lambert W-function, a relatively recent addition to the family of special functions, in the physical sciences.
C1 [Jordan, P. M.; Norton, G. V.; Chin-Bing, S. A.; Warn-Varnas, A.] USN, Res Lab, Stennis Space Ctr, Code 7180, Stennis Space Ctr, MS 39529 USA.
RP Jordan, PM (reprint author), USN, Res Lab, Stennis Space Ctr, Code 7180, Stennis Space Ctr, MS 39529 USA.
EM pjordan@nrlssc.navy.mil
NR 16
TC 3
Z9 3
U1 0
U2 1
PU WORLD SCIENTIFIC AND ENGINEERING ACAD AND SOC
PI ATHENS
PA AG LOANNOU THEOLOGOU 17-23, 15773 ZOGRAPHOU, ATHENS, GREECE
BN 978-960-474-158-8
J9 WSEAS MECH ENG SER
PY 2010
BP 67
EP +
PG 2
WC Thermodynamics; Engineering, Mechanical; Mechanics
SC Thermodynamics; Engineering; Mechanics
GA BOK33
UT WOS:000276890300008
ER
PT J
AU Lee, JS
Ray, RI
Little, BJ
AF Lee, J. S.
Ray, R. I.
Little, B. J.
TI Technical Note: Influence of Experimental Conditions on the Outcome of
Laboratory Investigations Using Natural Coastal Seawaters
SO CORROSION
LA English
DT Article
DE carbon steel; marine corrosion; seawater; sulfate-reducing bacteria
ID SULFATE-REDUCING BACTERIA; MILD-STEEL; CORROSION
AB Methods for handling and storing natural coastal seawater, particularly methods for deaeration over time, influenced the chemistry and microflora. Bubbling nitrogen into natural seawater to achieve an anaerobic condition was not conducive to the growth of sulfate-reducing bacteria (SRB). Despite a holier initial dissolved sulfate concentration and higher total organic carbon in Persian Gulf seawater, higher dissolved sulfide concentrations and SRB populations were measured in Key West. Florida, seawater under all exposure conditions.
C1 [Lee, J. S.; Ray, R. I.; Little, B. J.] USN, Res Lab, Stennis Space Ctr, MS 39529 USA.
RP Lee, JS (reprint author), USN, Res Lab, Code 7332, Stennis Space Ctr, MS 39529 USA.
EM jason.lee@nrlssc.navy.mil
FU Office of Naval Research [0601153N]
FX This work was supported by the Office of Naval Research Program element
0601153N (6.1 Research Program). NRL Publication number
NRL/JA/7330-09-9297.
NR 16
TC 7
Z9 7
U1 0
U2 3
PU NATL ASSOC CORROSION ENG
PI HOUSTON
PA 1440 SOUTH CREEK DRIVE, HOUSTON, TX 77084-4906 USA
SN 0010-9312
J9 CORROSION
JI Corrosion
PD JAN
PY 2010
VL 66
IS 1
AR 015001
PG 6
WC Materials Science, Multidisciplinary; Metallurgy & Metallurgical
Engineering
SC Materials Science; Metallurgy & Metallurgical Engineering
GA 544ZC
UT WOS:000273699400002
ER
PT S
AU Policastro, SA
Martin, FJ
Rayne, RJ
Auyeung, RCY
Pique, A
Lewis, A
Geltmacher, A
Natishan, PM
AF Policastro, S. A.
Martin, F. J.
Rayne, R. J.
Auyeung, R. C. Y.
Pique, A.
Lewis, A.
Geltmacher, A.
Natishan, P. M.
BE Hansen, DC
Missert, N
Inman, M
Garfias, LF
Lillard, RS
TI Isolating the Electrochemical Behavior of the Austenite and Ferrite
Phases in a Duplex Stainless Steel
SO CORROSION (GENERAL) - 216TH ECS MEETING
SE ECS Transactions
LA English
DT Proceedings Paper
CT Symposium on Corrosion General Session held during the 216th Meeting of
the Electrochemical-Society (ECS)
CY OCT 04-09, 2009
CL Vienna, AUSTRIA
SP Electrochem Soc, Electrochem Soc, Corros Div
ID LOCALIZED CORROSION
AB An experimental technique for making electrochemical measurements on isolated individual phase regions of known crystalline orientation in a duplex stainless steel is demonstrated. An ultraviolet-sensitive photoresist is used to mask the excluded portions of the sample and a 355 nm laser exposes only portions of the ferrite matrix or cross-sections of austenite dendrites. Initial impedance measurements indicate a relatively low solution resistance in seawater and the polarization scans of the ferrite and austenite phases were consistent with bulk polarization measurements.
C1 [Policastro, S. A.] US Naval Acad, Dept Mech Engn, Annapolis, MD 21402 USA.
[Martin, F. J.; Natishan, P. M.] Naval Res Lab, Ctr Corros Sci & Engn, Washington, DC 20375 USA.
[Rayne, R. J.; Lewis, A.; Geltmacher, A.] Naval Res Lab, Multifunct Mat Branch, Washington, DC 20375 USA.
[Auyeung, R. C. Y.; Pique, A.] Naval Res Lab, Mat & Sensors Branch, Washington, DC 20375 USA.
RP Policastro, SA (reprint author), US Naval Acad, Dept Mech Engn, 590 Holloway Rd, Annapolis, MD 21402 USA.
NR 6
TC 0
Z9 0
U1 1
U2 3
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 S MAIN ST, PENNINGTON, NJ 08534-2839 USA
SN 1938-5862
BN 978-1-56677-811-4
J9 ECS TRANSACTIONS
PY 2010
VL 25
IS 37
BP 133
EP 153
DI 10.1149/1.3407554
PG 21
WC Electrochemistry; Materials Science, Multidisciplinary
SC Electrochemistry; Materials Science
GA BC6TN
UT WOS:000354479500012
ER
PT S
AU Froes, FH
Imam, MA
AF Froes, F. H. (Sam)
Imam, M. Ashraf
BE Imam, MA
Froes, FH
Dring, KF
TI Cost Affordable Developments in Titanium Technology and Applications
SO COST-AFFORDABLE TITANIUM III
SE Key Engineering Materials
LA English
DT Proceedings Paper
CT Symposium on Cost Affordable Titanium III held at the 2010 TMS Annual
Meeting
CY FEB 14-18, 2010
CL Seattle, WA
SP Minerals, Met & Mat Soc (TMS)
AB Titanium is the "wonder" metal, which makes sense as the material of choice for a wide variety of applications. However, because of its relatively high price- a result of extraction and processing costs- it is used basically only when it is the only choice; with the caveat that titanium has a bright "image" which can lead to use even when the economics are unfavorable. The major thrust in the area of titanium technology has been aimed at achieving cost reduction rather than developing alloys with enhanced properties. This paper will overview the potential areas which are amenable to cost reduction and present some applications of titanium and it's alloys.
C1 [Froes, F. H. (Sam)] Univ Idaho, Inst Mat & Adv Proc, Moscow, ID 83844 USA.
[Imam, M. Ashraf] Naval Res Lab, Washington, DC 20375 USA.
RP Froes, FH (reprint author), Univ Idaho, Inst Mat & Adv Proc, Moscow, ID 83844 USA.
NR 16
TC 7
Z9 7
U1 0
U2 6
PU TRANS TECH PUBLICATIONS LTD
PI DURNTEN-ZURICH
PA KREUZSTRASSE 10, 8635 DURNTEN-ZURICH, SWITZERLAND
SN 1013-9826
J9 KEY ENG MATER
PY 2010
VL 436
BP 1
EP +
DI 10.4028/www.scientific.net/KEM.436.1
PG 2
WC Materials Science, Multidisciplinary
SC Materials Science
GA BPZ22
UT WOS:000280416600001
ER
PT S
AU Bruce, RW
Fliflet, AW
Huey, HE
Stephenson, C
Imam, MA
AF Bruce, Ralph W.
Fliflet, Arne W.
Huey, Hugo E.
Stephenson, Chad
Imam, M. Ashraf
BE Imam, MA
Froes, FH
Dring, KF
TI Microwave Sintering and Melting of Titanium Powder for Low-Cost
Processing
SO COST-AFFORDABLE TITANIUM III
SE Key Engineering Materials
LA English
DT Proceedings Paper
CT Symposium on Cost Affordable Titanium III held at the 2010 TMS Annual
Meeting
CY FEB 14-18, 2010
CL Seattle, WA
SP Minerals, Met & Mat Soc (TMS)
DE Titanium powder melting; Microwave melting; Microwave Sintering;
Microwave materials processing
AB The emerging reduction technologies for titanium from ore produce powder instead of sponge. Conventional methods for sintering and melting of titanium powder are costly, as they are energy intensive and require high vacuum, 10(-6) Torr or better, since titanium acts as a getter for oxygen at high temperature, adversely affecting mechanical properties. Other melting processes such as plasma arcs have the additional problem of electrode consumption, and direct induction heating of the titanium powder is problematic. Microwave sintering or melting in an atmospheric pressure argon gas environment is potentially cost effective and energy efficient due to the possibility of direct microwave heating of the titanium powder augmented by hybrid heating in a ceramic casket. We are investigating this approach at the Naval Research Laboratory using an S Band microwave system. The experimental setup and the results of melting and sintering experiments will be described including a rough estimate of energy usage.
C1 [Bruce, Ralph W.] Bethel Coll, 1001 Bethel Circle, Mishawaka, IN 46545 USA.
[Huey, Hugo E.] HWave LLC, Cupertino, CA 95014 USA.
[Stephenson, Chad] Univ Notre Dame, Dept Elect Engn, Notre Dame, IN 46556 USA.
[Fliflet, Arne W.; Imam, M. Ashraf] Naval Res Lab, Div Mat Sci & Technol, Div Plasma Phys, Washington, DC 20375 USA.
RP Bruce, RW (reprint author), Bethel Coll, 1001 Bethel Circle, Mishawaka, IN 46545 USA.
EM ralph.bruce@bethelcolle.edu; arne.fliflet@nrl.navy.mil;
hhuey7893@sbcglobal.net; cstephe3@nd.edu; ashraf.imam@nrl.navy.mil
RI Stephenson, Chad/O-6123-2014
OI Stephenson, Chad/0000-0002-3766-5247
FU Office of Naval Research
FX This work was supported by the Office of Naval Research.
NR 7
TC 6
Z9 6
U1 3
U2 10
PU TRANS TECH PUBLICATIONS LTD
PI DURNTEN-ZURICH
PA KREUZSTRASSE 10, 8635 DURNTEN-ZURICH, SWITZERLAND
SN 1013-9826
J9 KEY ENG MATER
PY 2010
VL 436
BP 131
EP +
DI 10.4028/www.scientific.net/KEM.436.131
PG 3
WC Materials Science, Multidisciplinary
SC Materials Science
GA BPZ22
UT WOS:000280416600014
ER
PT B
AU Rowe, NC
Houde, JP
Kolsch, MN
Darken, CJ
Heine, ER
Sadagic, A
Basu, C
Han, F
AF Rowe, Neil C.
Houde, Jeff P.
Kolsch, Mathias N.
Darken, Christian J.
Heine, Eric R.
Sadagic, Amela
Basu, Chumki
Han, Feng
BE Cordeiro, J
Shishkov, B
Verbraeck, A
Helfert, M
TI AUTOMATED ASSESSMENT OF PHYSICAL-MOTION TASKS FOR MILITARY INTEGRATIVE
TRAINING
SO CSEDU 2010: PROCEEDINGS OF THE 2ND INTERNATIONAL CONFERENCE ON COMPUTER
SUPPORTED EDUCATION, VOL 1
LA English
DT Proceedings Paper
CT 2nd International Conference on Computer Supported Education
CY APR 07-10, 2010
CL Valencia, SPAIN
SP Inst Syst & Technol Informat Control & Commun, IEEE Educ Soc, Spanish Chapter, Inst Elect & Elect Engn, Interdisciplinary Inst Collabor & Res Enterprise Syst & Technol
DE Training; Military; Tracking; Motion; Performance; Assessment; Behavior
Analysis; Image Processing; Global Positioning System
AB We describe the performance assessment component of the BASE-IT system, a real-time monitoring system of performance of U.S. Marines during training exercises for urban warfare. This automated component measures how well Marines are following procedures and staying safe, by tracking where they are and where they are looking. Such monitoring of physical motion is a relatively new application of computer technology with implications for instruction in physical education, choreography, and police work.
C1 [Rowe, Neil C.; Houde, Jeff P.; Kolsch, Mathias N.; Darken, Christian J.; Heine, Eric R.; Sadagic, Amela] US Naval Postgrad Sch, MOVES Inst, 1411 Cunningham Rd, Monterey, CA 93943 USA.
[Basu, Chumki; Han, Feng] Sarnoff Corp, Princeton, NJ USA.
RP Rowe, NC (reprint author), US Naval Postgrad Sch, MOVES Inst, 1411 Cunningham Rd, Monterey, CA 93943 USA.
EM ncrowe@nps.edu; jphoude@nps.edu; mnkolsch@nps.edu; cjdarken@nps.edu;
erheine@nps.edu; asadagic@nps.edu; chasu@sarnoff.com; fhan@sarnoff.com
FU U.S. Office of Naval Research
FX This work was sponsored by the U.S. Office of Naval Research. Opinions
expressed are not necessarily those of the U.S. Government.
NR 13
TC 0
Z9 0
U1 2
U2 2
PU INSTICC-INST SYST TECHNOLOGIES INFORMATION CONTROL & COMMUNICATION
PI SETUBAL
PA AVENIDA D MANUEL L, 27A 2 ESQUERDO, SETUBAL, 2910-595, PORTUGAL
BN 978-989-674-023-8
PY 2010
BP 190
EP 195
PG 6
WC Computer Science, Interdisciplinary Applications; Education &
Educational Research
SC Computer Science; Education & Educational Research
GA BG8MU
UT WOS:000392459100030
ER
PT J
AU Bolton, JG
Galeckas, KJ
Satter, EK
AF Bolton, Joanna G.
Galeckas, Kenneth J.
Satter, Elizabeth K.
TI Inoculation Bartonellosis in an Adult: A Case Report
SO CUTIS
LA English
DT Article
ID CAT-SCRATCH DISEASE; BACILLARY ANGIOMATOSIS; FEATURES; ROCHALIMAEA;
INFECTIONS; SPECTRUM; HENSELAE; AGENT
AB Cat-scratch disease (CSD) and bacillary angiomatosis (BA) are caused by a gram-negative bacilli classified under the genus Bartonella (formerly Rochalimaea). Patient history, symptoms, and histopathology often fall along a continuum; therefore, both conditions should be considered in the differential diagnosis.
We report a case of an 83-year-old immunocompetent woman who presented with a pyogenic granuloma-like lesion on her dorsal left wrist. The histologic differential diagnosis included an inoculation site from a cat scratch infected with Bartonella and BA. Because the patient had only 1 lesion at the site of a prior cat scratch, the lesion was diagnosed as inoculation bartonellosis. We also review the epidemiologic, clinical, and histopathologic features of CSD and BA. Cutis. 2010;85:37-42
C1 [Bolton, Joanna G.] Marine Corps Air Stn Miramar, Branch Med Clin, San Diego, CA USA.
[Galeckas, Kenneth J.; Satter, Elizabeth K.] USN, Med Ctr, Dept Dermatol, San Diego, CA 92145 USA.
RP Bolton, JG (reprint author), USN, Branch Med Clin Miramar, POB 452002, San Diego, CA 92145 USA.
EM joanna.bolton@med.navy.mil
NR 21
TC 0
Z9 0
U1 0
U2 0
PU QUADRANT HEALTHCOM INC
PI PARSIPPANY
PA 7 CENTURY DRIVE, STE 302, PARSIPPANY, NJ 07054-4603 USA
SN 0011-4162
J9 CUTIS
JI Cutis
PD JAN
PY 2010
VL 85
IS 1
BP 37
EP 42
PG 6
WC Dermatology
SC Dermatology
GA 548KQ
UT WOS:000273961700007
PM 20184210
ER
PT S
AU Dermer, CD
AF Dermer, Charles D.
CA Fermi Collaboration
BE Kawai, N
Nagataki, S
TI First Light on GRBs with Fermi
SO DECIPHERING THE ANCIENT UNIVERSE WITH GAMMA-RAY BURSTS
SE AIP Conference Proceedings
LA English
DT Proceedings Paper
CT International Symposium Deciphering the Ancient Universe with Gamma-Ray
Bursts
CY APR 19-23, 2010
CL Kyoto, JAPAN
SP Minist Educ Culture Sports Sci & Technol, Japan Soc Promotion Sci, Kyoto Univ
DE gamma ray bursts; Fermi Gamma-ray Space Telescope; ultra-high energy
cosmic rays
ID GAMMA-RAY BURST; SYNCHROTRON SHOCK MODEL; HIGH-ENERGY NEUTRINOS;
LARGE-AREA TELESCOPE; COSMIC-RAYS; SPECTRAL COMPONENT; SPACE-TELESCOPE;
LONG-DURATION; GEV EMISSION; LUMINOSITY
AB Fermi LAT (Large Area Telescope) and GBM (Gamma ray Burst Monitor) observations of GRBs are briefly reviewed, keeping in mind EGRET expectations. Using gamma gamma constraints on outflow Lorentz factors, leptonic models are pitted against hadronic models, and found to be energetically favored. Interpretation of the Fermi data on GRBs helps establish whether GRBs accelerate cosmic rays, including those reaching approximate to 10(20) eV.
C1 [Dermer, Charles D.; Fermi Collaboration] USN, Res Lab, Washington, DC 20375 USA.
RP Dermer, CD (reprint author), USN, Res Lab, Code 7653,4555 Overlook Ave SW, Washington, DC 20375 USA.
NR 39
TC 5
Z9 5
U1 0
U2 0
PU AMER INST PHYSICS
PI MELVILLE
PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA
SN 0094-243X
BN 978-0-7354-0829-6
J9 AIP CONF PROC
PY 2010
VL 1279
BP 191
EP 199
DI 10.1063/1.3509261
PG 9
WC Astronomy & Astrophysics; Physics, Mathematical
SC Astronomy & Astrophysics; Physics
GA BTJ80
UT WOS:000287125000034
ER
PT J
AU Pema, E
Mehay, S
AF Pema, Elda
Mehay, Stephen
TI THE IMPACT OF THE HIGH SCHOOL JUNIOR ROTC PROGRAM: DOES TREATMENT TIMING
AND INTENSITY MATTER?
SO DEFENCE AND PEACE ECONOMICS
LA English
DT Article
DE JROTC; High school achievement; At-risk youth; Enlistments
ID EDUCATION
AB The Junior Reserve Officers' Training Corps is a high school program that combines classroom teaching with extracurricular activities. The program is located primarily in inner city schools and serves at-risk students. Its goals are multidimensional and include military preparation and improving academic achievement. Using High School and Beyond data we find that the program's effects depend on the timing and intensity of involvement. Test scores, graduation rates, and enlistments are higher for students who participate early in high school and for those who persist in the program. Conversely, we find few effects for students participating in the last two years of high school.
C1 [Pema, Elda; Mehay, Stephen] USN, Postgrad Sch, Grad Sch Business & Publ Policy, Monterey, CA 93943 USA.
RP Pema, E (reprint author), USN, Postgrad Sch, Grad Sch Business & Publ Policy, 555 Dyer Rd, Monterey, CA 93943 USA.
EM epema@nps.edu
NR 26
TC 1
Z9 1
U1 0
U2 0
PU TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
SN 1024-2694
J9 DEFENCE PEACE ECON
JI Def. Peace Econ.
PY 2010
VL 21
IS 3
BP 229
EP 247
DI 10.1080/10242690903105554
PG 19
WC Economics
SC Business & Economics
GA 596ZB
UT WOS:000277723500002
ER
PT S
AU Cobb, JT
Slatton, KC
Principe, J
AF Cobb, J. Tory
Slatton, K. Clint
Principe, Jose
BE Harmon, RS
Holloway, KH
Broach, JT
TI A Method to Simulate Synthetic Aperture Sonar Images with Parameterized
Autocorrelation Functions
SO DETECTION AND SENSING OF MINES, EXPLOSIVE OBJECTS, AND OBSCURED TARGETS
XV
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Detection and Sensing of Mines, Explosive Objects, and
Obscured Targets XV
CY APR 05-09, 2010
CL Orlando, FL
SP SPIE
DE Synthetic Aperture Sonar; K-Distribution; Parameter Estimation;
Autocorrelation Function
ID K-DISTRIBUTED CLUTTER
AB An approach to simulate synthetic aperture sonar (SAS) images with known autocorrelation functions (ACF) and single-point statistics is presented. ACF models for generating textures with and without periodicities are defined and explained. Simulated textures of these models are compared visually with real SAS image textures. Distortion and degradation of the synthetic textures are examined for various simulation parameter choices.
C1 [Cobb, J. Tory] USN, Ctr Surface Warfare, Panama City, FL USA.
RP Cobb, JT (reprint author), USN, Ctr Surface Warfare, 110 Vernon Ave, Panama City, FL USA.
NR 16
TC 0
Z9 0
U1 0
U2 1
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8128-3
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7664
AR 76640Y
DI 10.1117/12.851110
PG 9
WC Remote Sensing; Optics
SC Remote Sensing; Optics
GA BSR48
UT WOS:000285543100027
ER
PT S
AU Dobeck, GJ
AF Dobeck, Gerald J.
BE Harmon, RS
Holloway, KH
Broach, JT
TI Adaptive large-scale clutter removal from imagery with application to
high-resolution sonar imagery
SO DETECTION AND SENSING OF MINES, EXPLOSIVE OBJECTS, AND OBSCURED TARGETS
XV
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Detection and Sensing of Mines, Explosive Objects, and
Obscured Targets XV
CY APR 05-09, 2010
CL Orlando, FL
SP SPIE
DE denoising; sonar; SAR; detection; classification; computer-aided
detection; automatic target recognition; ATR
AB The ability to reliably detect targets having signatures comprised of bright pixels (highlight) and dark pixels (shadow) is challenging when the background texture of the imagery also possesses bright and dark characteristics. This is especially difficult when the background contains large bright and dark areas that can mask target signatures. Detection and classification algorithms would benefit from an adaptive denoising algorithm that would remove or mitigate such background artifacts. This paper presents a Fourier-based denoising algorithm. The large support of the Fourier basis is used to capture and remove large-scale artifacts while leaving the smaller target-size features nearly unchanged. Data-driven soft thresholds allow the algorithm to automatically adapt to changing backgrounds. Preliminary investigations have demonstrated excellent performance. The algorithm is computationally fast and suitable for real-time application. The denoising algorithm is general in nature and can be applied to many types of high-resolution gray-scale imagery; e. g., side-looking sonar and SAR.
C1 USN, Ctr Surface Warfare, Panama City Div, Panama City, FL 32407 USA.
RP Dobeck, GJ (reprint author), USN, Ctr Surface Warfare, Panama City Div, Panama City, FL 32407 USA.
NR 5
TC 0
Z9 0
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8128-3
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7664
AR 76640X
DI 10.1117/12.851037
PG 10
WC Remote Sensing; Optics
SC Remote Sensing; Optics
GA BSR48
UT WOS:000285543100026
ER
PT S
AU Kendziora, CA
Furstenberg, R
Papantonakis, M
Nguyen, V
Stepnowski, J
McGill, RA
AF Kendziora, Christopher A.
Furstenberg, Robert
Papantonakis, Michael
Nguyen, Viet
Stepnowski, Jennifer
McGill, R. Andrew
BE Harmon, RS
Holloway, KH
Broach, JT
TI Advances in stand-off detection of trace explosives by infrared
photo-thermal imaging
SO DETECTION AND SENSING OF MINES, EXPLOSIVE OBJECTS, AND OBSCURED TARGETS
XV
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Detection and Sensing of Mines, Explosive Objects, and
Obscured Targets XV
CY APR 05-09, 2010
CL Orlando, FL
SP SPIE
DE explosives; trace detection; stand-off detection; infrared; quantum
cascade laser; photo-thermal; imaging
ID SPECTROSCOPY; RDX
AB A technique for stand-off detection of trace explosives using infrared (IR) photo-thermal (PT) imaging, remote explosives detection (RED), is under development at the Naval Research Laboratory. In this approach, compact IR quantum cascade lasers (QCLs) tuned to strong absorption bands of trace explosives illuminate a surface of interest. An IR focal plane array is used to image the surface and detect any small increase in the thermal emission upon laser illumination. The technique has been previously demonstrated at several meters of stand-off distance indoors and in field tests with sensitivity to explosive traces as small as a single grain (similar to 1 ng), while operating the lasers below the eye-safe intensity limit (100 mW/cm(2)) at the tested wavelengths. By varying the incident wavelength slightly, selectivity between TNT and RDX has been achieved. A complete test and analysis can be performed in less than 1 second. This manuscript critically examines components used with RED and demonstrates several improvements. These include QCL drive electronics for narrower spectral emission linewidth, fixed wavelength QCL packaging that optimizes spectral and spatial output, fiber-optic coupling for QCL beam steering and spatial filtering, cooled IR sensors that increase sensitivity and speed, tunable QCL sources that increase selectivity and extend the library of possible analytes, and dynamic PT signal processing that can increase sensitivity and speed. When considered in combination with the capabilities previously demonstrated for RED, and its capability to operate within eye-safety limits, this technology offers the potential for a wide area of applications relating to the detection of trace explosives on surfaces in both non-contact and stand-off configurations.
C1 [Kendziora, Christopher A.; Furstenberg, Robert; Papantonakis, Michael; Nguyen, Viet; McGill, R. Andrew] USN, Res Lab, Washington, DC 20375 USA.
RP Kendziora, CA (reprint author), USN, Res Lab, Code 6365,4555 Overlook Ave SW, Washington, DC 20375 USA.
EM kendzior@ccs.nrl.navy.mil
RI Papantonakis, Michael/G-3888-2012
NR 16
TC 7
Z9 7
U1 1
U2 11
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8128-3
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7664
AR 76641J
DI 10.1117/12.849750
PG 12
WC Remote Sensing; Optics
SC Remote Sensing; Optics
GA BSR48
UT WOS:000285543100045
ER
PT S
AU Tucker, JD
Azimi-Sadjadi, MR
AF Tucker, J. Derek
Azimi-Sadjadi, Mahmood R.
BE Harmon, RS
Holloway, KH
Broach, JT
TI Neyman Pearson Detection of K-Distributed Random Variables
SO DETECTION AND SENSING OF MINES, EXPLOSIVE OBJECTS, AND OBSCURED TARGETS
XV
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT Conference on Detection and Sensing of Mines, Explosive Objects, and
Obscured Targets XV
CY APR 05-09, 2010
CL Orlando, FL
SP SPIE
DE K-distributed clutter; non-Gaussian signal detection; sonar imagery;
target detection and classification
ID REVERBERATION; CLASSIFICATION
AB In this paper a new detection method for sonar imagery is developed in K-distributed background clutter. The equation for the log-likelihood is derived and compared to the corresponding counterparts derived for the Gaussian and Rayleigh assumptions. Test results of the proposed method on a data set of synthetic underwater sonar images is also presented. This database contains images with targets of different shapes inserted into backgrounds generated using a correlated K-distributed model. Results illustrating the effectiveness of the K-distributed detector are presented in terms of probability of detection, false alarm, and correct classification rates for various bottom clutter scenarios.
C1 [Tucker, J. Derek] USN, Ctr Surface Warfare, Panama City Div, Panama City, FL 32407 USA.
RP Tucker, JD (reprint author), USN, Ctr Surface Warfare, Panama City Div, 110 Vernon Ave, Panama City, FL 32407 USA.
EM james.d.tucker@navy.mil
NR 19
TC 0
Z9 0
U1 0
U2 0
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-8128-3
J9 PROC SPIE
PY 2010
VL 7664
AR 76640Q
DI 10.1117/12.851350
PG 12
WC Remote Sensing; Optics
SC Remote Sensing; Optics
GA BSR48
UT WOS:000285543100020
ER
PT S
AU Hurni, MA
Sekhavat, P
Ross, IM
AF Hurni, Michael A.
Sekhavat, Pooya
Ross, I. Michael
BE Hirsh, MJ
Pardalos, PM
Murphey, R
TI An Info-Centric Trajectory Planner for Unmanned Ground Vehicles
SO DYNAMICS OF INFORMATION SYSTEMS: THEORY AND APPLICATIONS
SE Springer Series in Optimization and Its Applications
LA English
DT Article; Book Chapter
AB We present a pseudospectral (PS) optimal control framework for autonomous trajectory planning and control of an Unmanned Ground Vehicle (UGV) with real-time information updates. The algorithm is introduced and implemented on a collection of motion planning scenarios with varying levels of information. The UGV mission is to traverse from an initial start point and reach the target point in minimum time, with maximum robustness, while avoiding both static and dynamic obstacles. This is achieved by computing the control solution that solves the initial planning problem by minimizing a cost function while satisfying dynamical and environmental constraints based on the initial global knowledge of the area. To overcome the problem of incomplete global knowledge and a dynamic environment, the UGV uses its sensors to map the locally detected changes in the environment and continuously updates its global map. At each information update, the optimal control is recomputed and implemented. Simulation results illustrate the performance of the planner under varying levels of information.
C1 [Hurni, Michael A.; Sekhavat, Pooya; Ross, I. Michael] USN, Postgrad Sch, Monterey, CA 93943 USA.
RP Hurni, MA (reprint author), USN, Postgrad Sch, Monterey, CA 93943 USA.
EM mahurni@nps.edu; psekhava@nps.edu; imross@nps.edu
NR 13
TC 1
Z9 1
U1 0
U2 0
PU SPRINGER
PI NEW YORK
PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES
SN 1931-6828
BN 978-1-4419-5688-0
J9 SPRINGER SER OPTIM A
PY 2010
VL 40
BP 213
EP 232
DI 10.1007/978-1-4419-5689-7_11
PG 20
WC Computer Science, Artificial Intelligence; Operations Research &
Management Science; Mathematics, Applied
SC Computer Science; Operations Research & Management Science; Mathematics
GA BOR02
UT WOS:000277363300011
ER
PT J
AU Yabuuchi, N
Lu, YC
Mansour, AN
Kawaguchi, T
Shao-Horn, Y
AF Yabuuchi, Naoaki
Lu, Yi-Chun
Mansour, Azzam N.
Kawaguchi, Tadashi
Shao-Horn, Yang
TI The Influence of Surface Chemistry on the Rate Capability of
LiNi0.5Mn0.5O2 for Lithium Rechargeable Batteries
SO ELECTROCHEMICAL AND SOLID STATE LETTERS
LA English
DT Article
ID LI-ION BATTERIES; ELECTROCHEMICAL PROPERTIES; POWDER DIFFRACTION;
INSERTION MATERIAL; CATHODE MATERIAL; PHASE-STABILITY; HIGH-CAPACITY;
HIGH-VOLTAGE; LINI1/2MN1/2O2; ELECTRODES
AB Subsequent annealing at 700 degrees C enhances the rate capability of LiNi0.5Mn0.5O2, delivering 180 mAh/g at 55 degrees C and 8C rate compared to 50 mAh/g of LiNi0.5Mn0.5O2 quenched from 1000 degrees C. Although Rietvled refinement analyses of X-ray diffraction (XRD) data showed that there were no significant changes in the lattice parameters and cation distributions of the layered structure before and after annealing, XRD and X-ray photoelectron spectroscopy revealed that annealing significantly reduced surface impurity phases such as lithium carbonate and Mn3+-containing species. The influence of surface chemistry changes on the rate capability of LiNi0.5Mn0.5O2 was discussed. (C) 2010 The Electrochemical Society. [DOI: 10.1149/1.3479664] All rights reserved.
C1 [Yabuuchi, Naoaki; Kawaguchi, Tadashi; Shao-Horn, Yang] MIT, Dept Mech Engn, Cambridge, MA 02139 USA.
[Lu, Yi-Chun; Shao-Horn, Yang] MIT, Dept Mat Sci & Engn, Cambridge, MA 02139 USA.
[Mansour, Azzam N.] USN, Ctr Surface Warfare, Carderock Div, Bethesda, MD 20817 USA.
RP Yabuuchi, N (reprint author), MIT, Dept Mech Engn, Cambridge, MA 02139 USA.
EM shaohorn@mit.edu
RI Yabuuchi, Naoaki/F-8369-2012; Lu, Yi-Chun/J-1841-2015
OI Yabuuchi, Naoaki/0000-0002-9404-5693; Lu, Yi-Chun/0000-0003-1607-1615
FU DOE [DE-AC03-76SF00098]
FX This work was supported by the Assistant Secretary for Energy Efficiency
and Renewable Energy, Office of FreedomCAR and Vehicle Technologies of
the DOE (DE-AC03-76SF00098 with LBNL).
NR 29
TC 12
Z9 12
U1 4
U2 27
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 SOUTH MAIN STREET, PENNINGTON, NJ 08534 USA
SN 1099-0062
J9 ELECTROCHEM SOLID ST
JI Electrochem. Solid State Lett.
PY 2010
VL 13
IS 11
BP A158
EP A161
DI 10.1149/1.3479664
PG 4
WC Electrochemistry; Materials Science, Multidisciplinary
SC Electrochemistry; Materials Science
GA 667KY
UT WOS:000283193300004
ER
PT J
AU Heuer, AH
Kahn, H
O'Donnell, LJ
Ernst, F
Michal, GM
Rayne, RJ
Martin, FJ
Natishan, PM
AF Heuer, A. H.
Kahn, H.
O'Donnell, L. J.
Ernst, F.
Michal, G. M.
Rayne, R. J.
Martin, F. J.
Natishan, P. M.
TI Carburization-Enhanced Passivity of PH13-8 Mo: A Precipitation-Hardened
Martensitic Stainless Steel
SO ELECTROCHEMICAL AND SOLID STATE LETTERS
LA English
DT Article
ID LOW-TEMPERATURE; PARAEQUILIBRIUM CARBURIZATION; CARBON DIFFUSION;
RESISTANCE
AB Interstitial hardening of the martensitic stainless steel PH13-8 Mo has been achieved by low temperature gas-phase carburization. After treatment, hardness is increased to a depth of approximate to 50 mu m, with a surface hardness that is twice the core hardness and a corresponding improvement in pin-on-disk wear resistance. Pitting potential is increased by approximate to 0.5 V in 0.6 M NaCl. Elemental analysis and X-ray diffraction suggest the formation of a thin (approximate to 2 mu m) carbidic surface layer that is both wear and corrosion resistant. (C) 2010 The Electrochemical Society. [DOI: 10.1149/1.3491468] All rights reserved.
C1 [Heuer, A. H.; Kahn, H.; O'Donnell, L. J.; Ernst, F.; Michal, G. M.] Case Western Reserve Univ, Dept Mat Sci & Engn, Cleveland, OH 44106 USA.
[Rayne, R. J.; Martin, F. J.; Natishan, P. M.] USN, Res Lab, Div Chem, Ctr Corros Sci & Engn, Washington, DC 20375 USA.
RP Heuer, AH (reprint author), Case Western Reserve Univ, Dept Mat Sci & Engn, Cleveland, OH 44106 USA.
EM natishan@nrl.navy.mil
RI Ernst, Frank/J-4016-2013
FU Naval Research Laboratory
FX The authors gratefully acknowledge Dr. Airan Perez of the Office of
Naval Research and the Naval Research Laboratory for the financial
support of this work. The authors also thank Peter Williams and Dr.
Sunniva Collins of Swagelok Corporation (Solon, OH) for significant
technical assistance and for performing treatments of the stainless
steel employed in this work.
NR 10
TC 7
Z9 7
U1 0
U2 7
PU ELECTROCHEMICAL SOC INC
PI PENNINGTON
PA 65 SOUTH MAIN STREET, PENNINGTON, NJ 08534 USA
SN 1099-0062
J9 ELECTROCHEM SOLID ST
JI Electrochem. Solid State Lett.
PY 2010
VL 13
IS 12
BP C37
EP C39
DI 10.1149/1.3491468
PG 3
WC Electrochemistry; Materials Science, Multidisciplinary
SC Electrochemistry; Materials Science
GA 669PB
UT WOS:000283361600007
ER
PT J
AU Augier, M
AF Augier, Mie
BE Klein, PG
Sykuta, ME
TI Cyert, March, and the Carnegie school
SO ELGAR COMPANION TO TRANSACTION COST ECONOMICS
SE Elgar Original Reference
LA English
DT Article; Book Chapter
ID ECONOMICS
C1 USN, Postgrad Sch, Monterey, CA USA.
RP Augier, M (reprint author), USN, Postgrad Sch, Monterey, CA USA.
NR 21
TC 1
Z9 1
U1 0
U2 0
PU EDWARD ELGAR PUBLISHING LTD
PI CHELTENHAM
PA GLENSANDA HOUSE, MONTPELLIER PARADE, CHELTENHAM GL50 1UA, GLOS, ENGLAND
BN 978-1-84542-766-5
J9 ELGAR ORIG REF
PY 2010
BP 49
EP 57
PG 9
WC Business; Economics
SC Business & Economics
GA BZF45
UT WOS:000301359800005
ER
PT J
AU Harvey, BG
Quintana, RL
AF Harvey, Benjamin G.
Quintana, Roxanne L.
TI Synthesis of renewable jet and diesel fuels from 2-ethyl-1-hexene
SO ENERGY & ENVIRONMENTAL SCIENCE
LA English
DT Article
ID SOLID ACID CATALYSTS; ION-EXCHANGE-RESINS; SULFATED ZIRCONIA; SILICA
NANOCOMPOSITE; ALPHA-METHYLSTYRENE; DIMERIZATION; COMPOSITE; ISOBUTENE;
WATER; OLIGOMERIZATION
AB An efficient method for the selective dimerization of the renewable feedstock, 2-ethyl-1-hexene, to a complex mixture of C(16)H(32) hydrocarbons has been developed. To optimize the process, the activity of a variety of strongly acidic heterogeneous catalysts was investigated. Montmorillonite K-10 and sulfated zirconia readily isomerized 2-ethyl-1-hexene to a mixture of the cis- and trans isomers of 3-methyl-2-heptene and 3-methyl-3-heptene, but were inactive for the dimerization of 2-ethyl-1-hexene at temperatures up to 116 degrees C. In contrast, the cation exchange resins Amberlyst-15 and Nafion, readily dimerized 2-ethyl-1-hexene at elevated temperatures. For both sets of catalysts, the degree of hydration strongly affected the rate of isomerization/dimerization. After hydrogenation over PtO(2) and fractional distillation, saturated dimer mixtures could be isolated in up to 90% yield. The dimers have a density of 0.78 g mL(-1) and a freezing point < -60 degrees C, suggesting that they can be blended with renewable or conventional jet fuels, without adversely affecting the overall density and low temperature viscosity of the mixtures.
C1 [Harvey, Benjamin G.; Quintana, Roxanne L.] USN, Naval Air Syst Command NAVAIR, Naval Air Warfare Ctr, Weap Div NAWCWD,Res Dept,Chem Div, China Lake, CA 93555 USA.
RP Harvey, BG (reprint author), USN, Naval Air Syst Command NAVAIR, Naval Air Warfare Ctr, Weap Div NAWCWD,Res Dept,Chem Div, China Lake, CA 93555 USA.
EM benjamin.g.harvey@navy.mil
FU Office of Naval Research In-House Laboratory Independent Research
FX The authors thank Dr Michael Wright for helpful discussions, Dr Curtis
Johnson for assistance with BET measurements, and the Office of Naval
Research In-House Laboratory Independent Research Program for funding.
NR 40
TC 46
Z9 47
U1 3
U2 21
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1754-5692
J9 ENERG ENVIRON SCI
JI Energy Environ. Sci.
PY 2010
VL 3
IS 3
BP 352
EP 357
DI 10.1039/b924004g
PG 6
WC Chemistry, Multidisciplinary; Energy & Fuels; Engineering, Chemical;
Environmental Sciences
SC Chemistry; Energy & Fuels; Engineering; Environmental Sciences & Ecology
GA 563UD
UT WOS:000275159300014
ER
PT J
AU Dorner, RW
Hardy, DR
Williams, FW
Willauer, HD
AF Dorner, Robert W.
Hardy, Dennis R.
Williams, Frederick W.
Willauer, Heather D.
TI Heterogeneous catalytic CO2 conversion to value-added hydrocarbons
SO ENERGY & ENVIRONMENTAL SCIENCE
LA English
DT Article
ID FISCHER-TROPSCH SYNTHESIS; CARBON-DIOXIDE HYDROGENATION; GAS-PERMEABLE
MEMBRANES; ALUMINA-SUPPORTED IRON; CU-ZN CATALYSTS; ELECTROCHEMICAL
REDUCTION; OCEAN ACIDIFICATION; PHASE-TRANSITION; FE; POTASSIUM
AB The impact that anthropogenic CO2 is having on the environment has been thoroughly documented over the last 20 years. Many different technologies have been proposed to reduce its impact on global warming such as geological sequestration. However, an interesting and attractive alternative would be the recycling of the gas into energy-rich molecules. Iron rather than cobalt catalysts, based on the Fischer-Tropsch technology, have shown the greatest promise in converting CO2 to value-added hydrocarbons. The addition of co-catalysts is, however, essential to fine tune the product distribution to the more desired alkene products. The role that both the promoter and support play on the catalyst's activity is reviewed.
C1 [Dorner, Robert W.; Hardy, Dennis R.; Williams, Frederick W.; Willauer, Heather D.] USN, Res Lab, Navy Technol Ctr Safety & Survivabil, Washington, DC 20375 USA.
RP Dorner, RW (reprint author), USN, Res Lab, Navy Technol Ctr Safety & Survivabil, 4555 Overlook Ave SW, Washington, DC 20375 USA.
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. The research was performed
while RWD held a National Research Council Cooperative Research
Associateship at the Naval Research Laboratory.
NR 75
TC 82
Z9 83
U1 14
U2 142
PU ROYAL SOC CHEMISTRY
PI CAMBRIDGE
PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS,
ENGLAND
SN 1754-5692
J9 ENERG ENVIRON SCI
JI Energy Environ. Sci.
PY 2010
VL 3
IS 7
BP 884
EP 890
DI 10.1039/c001514h
PG 7
WC Chemistry, Multidisciplinary; Energy & Fuels; Engineering, Chemical;
Environmental Sciences
SC Chemistry; Energy & Fuels; Engineering; Environmental Sciences & Ecology
GA 618AH
UT WOS:000279322800002
ER
PT J
AU Harvey, BG
Wright, ME
Quintana, RL
AF Harvey, Benjamin G.
Wright, Michael E.
Quintana, Roxanne L.
TI High-Density Renewable Fuels Based on the Selective Dimerization of
Pinenes
SO ENERGY & FUELS
LA English
DT Article
ID CATALYTIC CONVERSION; SILICA NANOCOMPOSITE; ACID CATALYSTS; ALKYLATION;
COMPOSITE; LIMONENE
AB High-density fuel candidates have been synthesized in up to 90% yield from beta-pinene, a renewable strained bicyclic compound derived from wood and plant Sources. The process is based oil the heterogeneous acidic catalysts Montmorillonite-K10 and Nafion, which promote selective isomerization and dimerization of pinenes under moderate conditions (100 degrees C and atmospheric pressure). Montmorillonite-K10 was shown to be a highly active catalyst for dimerization but was also active in the ring opening of beta-pinene followed by dehydrogenation to produce p-cymene, which limited the yield of the dimer to ca. 75%. Nafion was capable of producing dimers in up to 90% yield primarily through isomerization followed by dimerization. Amberlyst-15 a common industrial catalyst had very poor activity and conversion even at 150 degrees C. The dimer mixtures were upgraded through hydrogenation over PtO(2) and fractional distillation. The synthesized fuels have a density of 0.94 g/cm(3) and a net volumetric heating value of 39.5 MJ/L (141 745 BTU/gallon). These values are nearly identical to those for the widely used tactical fuel JP-10 (primarily composed of exotetrahydrodicyclopentadiene), suggesting that these renewable fuels may have applications for rocket propulsion.
C1 [Harvey, Benjamin G.; Wright, Michael E.; Quintana, Roxanne L.] USN, Naval Air Syst Command, Naval Air Warfare Ctr, Weap Div,Res Dept,Chem Div, China Lake, CA 93555 USA.
RP Harvey, BG (reprint author), USN, Naval Air Syst Command, Naval Air Warfare Ctr, Weap Div,Res Dept,Chem Div, China Lake, CA 93555 USA.
EM benjamin.g.harvey@navy.mil
FU NAWCWD; Office of Naval Research
FX The authors thank Andrew Chafin for gas-phase heat of formation
calculations and NAWCWD and the Office of Naval Research (In-House
Laboratory Independent Research Program) for funding this work.
NR 34
TC 83
Z9 86
U1 7
U2 67
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
SN 0887-0624
J9 ENERG FUEL
JI Energy Fuels
PD JAN
PY 2010
VL 24
BP 267
EP 273
DI 10.1021/ef900799c
PG 7
WC Energy & Fuels; Engineering, Chemical
SC Energy & Fuels; Engineering
GA 555MI
UT WOS:000274514500038
ER
PT J
AU Qidwai, SM
DeGiorgi, VG
AF Qidwai, Siddiq M.
DeGiorgi, V. G.
TI Numerical analysis of the effect of poling-loading misalignment and
mechanical boundary conditions on piezoelectric actuation
SO ENGINEERING COMPUTATIONS
LA English
DT Article
DE Design; Actuators; Finite element analysis; Piezoelectricity;
Differential equations; Numerical analysis
ID FINITE-ELEMENT FORMULATION; FERROELECTRIC CERAMICS; FERROELASTIC
MATERIALS; CONSTITUTIVE MODEL; CRACK SURFACES; PIEZOCERAMICS;
CANTILEVERS; COMPONENTS; ACCOUNT; STRAIN
AB Purpose - The paper aims to highlight the computational implementation of a nonlinear piezoelectric constitutive model and its application in determining the impact of misalignment between initial poling direction and applied electrical field, and mechanical boundary conditions on actuator performance.
Design/methodology/approach - The numerical analysis is based on an existing three-dimensional model, where the original rate-independent evolution equations are replaced by their rate-dependent counterparts to facilitate implementation, which is performed in a partial differential equation solver. The execution of the model is verified through several benchmark constitutive responses.
Findings - The analysis shows that small angles of poling and loading axes misalignment such as may occur in fabrication (less than 5 degrees) have minor impact on piezoelectric performance regardless of the type of imposed mechanical boundary conditions. On the other hand, larger angles of misalignment can have a significant impact, the feasibility of which in actuator design remains to be seen. Furthermore, it is shown that the linear response range of these actuators can be expanded by increased levels of mechanical constraint at the cost of maximum actuation stroke regardless of the degree of misalignment.
Originality/value - The misalignment, which occurs accidentally, but can also be introduced purposefully during the fabrication process when poled material is cut into specimen form, may exhibit desirable performance features for actuator design when combined with appropriate mechanical constraints.
C1 [Qidwai, Siddiq M.] Sci Applicat Int Corp, Washington, DC USA.
[DeGiorgi, V. G.] USN, Res Lab, Syst Design & Integrat Sect, Multifunct Mat Branch,Mat Sci & Technol Div, Washington, DC 20375 USA.
RP Qidwai, SM (reprint author), Sci Applicat Int Corp, Washington, DC USA.
EM muhammad.a.qidwai@nrl.navy.mil
OI Qidwai, Siddiq/0000-0002-2389-118X
FU Office of Naval Research; US Naval Research Laboratory
FX The authors gratefully acknowledge support of this work by the Office of
Naval Research and US Naval Research Laboratory under the core Research
Program.
NR 36
TC 1
Z9 1
U1 0
U2 5
PU EMERALD GROUP PUBLISHING LIMITED
PI BINGLEY
PA HOWARD HOUSE, WAGON LANE, BINGLEY BD16 1WA, W YORKSHIRE, ENGLAND
SN 0264-4401
J9 ENG COMPUTATION
JI Eng. Comput.
PY 2010
VL 27
IS 7-8
BP 909
EP 929
DI 10.1108/02644401011082953
PG 21
WC Computer Science, Interdisciplinary Applications; Engineering,
Multidisciplinary; Mathematics, Interdisciplinary Applications;
Mechanics
SC Computer Science; Engineering; Mathematics; Mechanics
GA 711EH
UT WOS:000286569400008
ER
PT J
AU Joyce, JA
Link, RE
Roe, C
Sobotka, JC
AF Joyce, James A.
Link, R. E.
Roe, C.
Sobotka, J. C.
TI Dynamic and static characterization of compact crack arrest tests of
navy and nuclear steels
SO ENGINEERING FRACTURE MECHANICS
LA English
DT Article
DE Crack arrest; Fracture toughness; Dynamic crack arrest; Stress intensity
factor; J-integral; Ductile-to-brittle transition; Initiation toughness;
HSLA-100; HY100; European round robin; Dynamic computational analysis;
ASTM E1221; ASTM E1921
AB Recent experimental and computational work by Link and associates has demonstrated that relatively small (W = 150 mm) single edge notched tension specimens (SE(T)) can be used to obtain crack arrest data high in the ductile-to-brittle transition of ferritic structural steel using dynamic computational techniques if a thermal gradient is utilized to aid in the crack arrest. Testing has been reported on two important navy structural steels that clearly defines the relative capability of the two materials to arrest rapidly growing cracks. The HY100 material demonstrated the expected large difference between the initiation and Crack arrest toughnesses which has made it impossible in the past to measure crack arrest toughness for this material using the standard ASTM procedure (E1221) The HSLA-100 steel, however demonstrated a much higher crack arrest toughness and a correspondingly smaller drop in toughness below the initiation toughness. This small difference between initiation toughness and arrest toughness suggested that the E1221 procedure, using wedge loaded, compact crack arrest (CCA) specimens would be applicable to this material Two important issues could then be investigated using this material. First, having completed the expensive and relatively complex testing of the SE(T) specimens using tensile loading and a thermal gradient. a second, quite different geometry could be tested using the E1221 procedure. allowing an important comparison between the crack arrest measurements made using these two distinct geometries. Historically. obtaining crack arrest results using one test configuration has been so difficult, that there have been very few reports of results for the same material using two different test geometries. Transferability of the laboratory results to structural applications has thus been a matter of conjecture Furthermore. if the E 122 1 CCA specimens were strain gaged to obtain crack velocity data, and analyzed using the dynamic computational procedure used by Link on the SE(T) specimens, it would be possible to compare the results the E1221 static analysis with the results of the dynamic computation procedure to determine the degree of conservatism present in the E1221 standard procedure
The results of this work have shown that the crack arrest toughness results obtained on these two specimen geometries are similar and hence insensitive to the test geometry and the difference resulting from the application of the complex dynamic computational procedure or the E1221 static analyses is small. Published by Elsevier Ltd
C1 [Joyce, James A.; Link, R. E.] USN Acad, Annapolis, MD 21402 USA.
[Roe, C.] USN, Ctr Surface Warfare, Carderock Div, Bethesda, MD 20084 USA.
[Sobotka, J. C.] Univ Illinois, Dept Civil Engn, Urbana, IL 61801 USA.
RP Joyce, JA (reprint author), USN Acad, Annapolis, MD 21402 USA.
FU US Navy; US Nuclear Regulatory Commission Office of Nuclear Regulatory
Research
FX This project was sponsored by the US Navy and by the US Nuclear
Regulatory Commission Office of Nuclear Regulatory Research under the
direction of Dr. Mark Erickson-Kirk The assistance of the Technical
Support Department of the US Naval Academy is also gratefully
acknowledged.
NR 14
TC 8
Z9 9
U1 2
U2 15
PU PERGAMON-ELSEVIER SCIENCE LTD
PI OXFORD
PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
SN 0013-7944
J9 ENG FRACT MECH
JI Eng. Fract. Mech.
PD JAN
PY 2010
VL 77
IS 2
SI SI
BP 337
EP 347
DI 10.1016/j.engfracmech.2009.04.006
PG 11
WC Mechanics
SC Mechanics
GA 562YW
UT WOS:000275093000015
ER
PT J
AU Larabee, MD
AF Larabee, Mark D.
TI Modernism and the Country House in Ford Madox Ford's The Good Soldier
SO ENGLISH LITERATURE IN TRANSITION 1880-1920
LA English
DT Article
C1 USN Acad, Annapolis, MD USA.
RP Larabee, MD (reprint author), USN Acad, Annapolis, MD USA.
NR 21
TC 2
Z9 2
U1 0
U2 0
PU ENGLISH LITERATURE TRANSITION
PI GREENSBORO
PA UNIV NORTH CAROLINA DEPT ENGLISH, GREENSBORO, NC 27412-5001 USA
SN 0013-8339
J9 ENGL LIT TRANSITION
JI Engl. Lit. Transit.
PY 2010
VL 53
IS 1
BP 75
EP 94
DI 10.2487/elt.53.1(2010)0053
PG 20
WC Literature, British Isles
SC Literature
GA 532HR
UT WOS:000272738300004
ER
PT S
AU Wood, J
Klote, MM
Tung, HL
Stachura, ME
Astapova, EV
Sofge, DA
Grayson, J
Lawless, WF
AF Wood, Joseph
Klote, Mary M.
Tung, Hui-Lien
Stachura, Max E.
Astapova, Elena V.
Sofge, Donald A.
Grayson, James
Lawless, W. F.
BE QuintelaVarajao, JE
CruzCunha, MM
Putnik, GD
Trigo, A
TI Military Medical Department Research Centers
SO ENTERPRISE INFORMATION SYSTEMS PT II
SE Communications in Computer and Information Science
LA English
DT Proceedings Paper
CT International Conference on Enterprise Information Systems
CY OCT 20-22, 2010
CL Viana do Castelo, PORTUGAL
SP Univ TrasosMontes & Alto Douro, Polytechn Inst Cavado & Ave, GESITI
DE Organizational uncertainty; metrics; interdependence
AB We review our research with military Medical Department Research Centers (MDRC; a pseudonym). In 2006, we first proposed an electronic data system with metrics to better measure performance for the MDRCs. The data management system evolved into an electronic system for an Institutional Review Board (e-IRB) at one site. We foresaw that an e-IRB could provide the metrics to better monitor MDRC practices. Now that the eIRB is operational, metrics can measure how well the present mission of the MDRCs is being met across its system (improved patient care, increased scientific knowledge, and improved graduate student education); and, how well its vision is achieved (transforming the present mission of MDRCs to prepare for future missions).
C1 [Lawless, W. F.] Paine Coll, 1235 15th St, Augusta, GA 30901 USA.
[Wood, Joseph] Dept Clin Invest, Ft Gordon, GA 30905 USA.
[Klote, Mary M.] US Army, Clin Investigat Regulatory Off, Med Res & Mat Command, Frederick, MD 21702 USA.
[Tung, Hui-Lien] Dept Management, Auburn, AL USA.
[Stachura, Max E.; Astapova, Elena V.] Ctr Telehlth, Med Coll Georgia, Augusta, GA USA.
[Sofge, Donald A.] Navy Ctr, Appl Res Artificial Intelligence, Naval Res Lab, Washington, DC USA.
[Grayson, James] Augusta State Univ, Augusta, GA 30904 USA.
RP Lawless, WF (reprint author), Paine Coll, 1235 15th St, Augusta, GA 30901 USA.
EM Joseph.C.Wood@us.army.mil; Mary.Klote@us.army.mil; hzt0007@auburn.edu;
maxs@mcg.edu; eastapova@mail.mcg.edu; donald.sofge@nrl.navy.nil;
jgrayson@aug.edu; wlawless@paine.edu
FU U. S. Army Research Office [W911NF-10-1-0252]
FX This material is based upon work supported by, or in part by, the U. S.
Army Research Laboratory and the U. S. Army Research Office under
contract/grant number W911NF-10-1-0252.
NR 22
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 1865-0929
BN 978-3-642-16418-7
J9 COMM COM INF SC
PY 2010
VL 110
BP 109
EP +
PN 2
PG 2
WC Computer Science, Information Systems; Computer Science, Software
Engineering; Computer Science, Theory & Methods
SC Computer Science
GA BTZ21
UT WOS:000288485400011
ER
PT J
AU Squire, PN
Parasuraman, R
AF Squire, P. N.
Parasuraman, R.
TI Effects of automation and task load on task switching during human
supervision of multiple semi-autonomous robots in a dynamic environment
SO ERGONOMICS
LA English
DT Article
DE automation; human factors; human-robot interaction; multitasking; task
switching; unmanned vehicles
ID EXECUTIVE CONTROL; PERFORMANCE; VEHICLES; HOMUNCULUS; SEARCH
AB The present study assessed the impact of task load and level of automation (LOA) on task switching in participants supervising a team of four or eight semi-autonomous robots in a simulated 'capture the flag' game. Participants were faster to perform the same task than when they chose to switch between different task actions. They also took longer to switch between different tasks when supervising the robots at a high compared to a low LOA. Task load, as manipulated by the number of robots to be supervised, did not influence switch costs. The results suggest that the design of future unmanned vehicle (UV) systems should take into account not simply how many UVs an operator can supervise, but also the impact of LOA and task operations on task switching during supervision of multiple UVs. The findings of this study are relevant for the ergonomics practice of UV systems. This research extends the cognitive theory of task switching to inform the design of UV systems and results show that switching between UVs is an important factor to consider.
C1 [Squire, P. N.] USN, Ctr Surface Warfare, Dahglren Div, Dahlgren, VA 22448 USA.
[Squire, P. N.; Parasuraman, R.] George Mason Univ, Dept Psychol, Fairfax, VA 22030 USA.
RP Squire, PN (reprint author), USN, Ctr Surface Warfare, Dahglren Div, Dahlgren, VA 22448 USA.
EM peter.squire@navy.mil
FU Naval Research Independent Laboratory In-House Research (IHR);
Independent Applied Research (IAR); Army Research Laboratory
[6004.005.01-C]; Air Force Office of Sponsored Research MURI
FX The authors wish to thank the George Mason University Interruption
Group, Archlab Writing Group and Owen Seely for feedback and comments on
this manuscript. This research was supported in part by the Naval
Research Independent Laboratory In-House Research (IHR) and Independent
Applied Research (IAR) Programs to P.S.; and the Army Research
Laboratory under Contract 6004.005.01-C and Air Force Office of
Sponsored Research MURI Grant to R.P.
NR 32
TC 8
Z9 8
U1 1
U2 4
PU TAYLOR & FRANCIS LTD
PI ABINGDON
PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND
SN 0014-0139
J9 ERGONOMICS
JI Ergonomics
PY 2010
VL 53
IS 8
BP 951
EP 961
AR PII 924713678
DI 10.1080/00140139.2010.489969
PG 11
WC Engineering, Industrial; Ergonomics; Psychology, Applied; Psychology
SC Engineering; Psychology
GA 630IK
UT WOS:000280266400003
PM 20658389
ER
PT J
AU Johnson, WB
AF Johnson, W. Brad
TI The Ethics of Supervision and Consultation: Practical Guidance for
Mental Health Professionals
SO ETHICS & BEHAVIOR
LA English
DT Book Review
C1 [Johnson, W. Brad] USN Acad, Annapolis, MD 21402 USA.
[Johnson, W. Brad] Johns Hopkins Univ, Grad Sch Business & Educ, Annapolis, MD USA.
RP Johnson, WB (reprint author), USN Acad, Annapolis, MD 21402 USA.
NR 1
TC 0
Z9 0
U1 2
U2 4
PU LAWRENCE ERLBAUM ASSOC INC-TAYLOR & FRANCIS
PI PHILADELPHIA
PA 325 CHESTNUT STREET, STE 800, PHILADELPHIA, PA 19106 USA
SN 1050-8422
J9 ETHICS BEHAV
JI Ethics Behav.
PY 2010
VL 20
IS 5
BP 400
EP 402
AR PII 927632604
DI 10.1080/10508422.2010.491770
PG 3
WC Ethics; Psychology, Multidisciplinary
SC Social Sciences - Other Topics; Psychology
GA 659OL
UT WOS:000282576700006
ER
PT J
AU Ives, RW
Bishop, DA
Du, YZ
Belcher, C
AF Ives, Robert W.
Bishop, Daniel A.
Du, Yingzi
Belcher, Craig
TI Iris Recognition: The Consequences of Image Compression
SO EURASIP JOURNAL ON ADVANCES IN SIGNAL PROCESSING
LA English
DT Article
AB Iris recognition for human identification is one of the most accurate biometrics, and its employment is expanding globally. The use of portable iris systems, particularly in law enforcement applications, is growing. In many of these applications, the portable device may be required to transmit an iris image or template over a narrow-bandwidth communication channel. Typically, a full resolution image (e. g., VGA) is desired to ensure sufficient pixels across the iris to be confident of accurate recognition results. To minimize the time to transmit a large amount of data over a narrow-bandwidth communication channel, image compression can be used to reduce the file size of the iris image. In other applications, such as the Registered Traveler program, an entire iris image is stored on a smart card, but only 4 kB is allowed for the iris image. For this type of application, image compression is also the solution. This paper investigates the effects of image compression on recognition system performance using a commercial version of the Daugman iris2pi algorithm along with JPEG-2000 compression, and links these to image quality. Using the ICE 2005 iris database, we find that even in the face of significant compression, recognition performance is minimally affected.
C1 [Ives, Robert W.] USN Acad, Dept Elect & Comp Engn, Annapolis, MD 21402 USA.
[Bishop, Daniel A.] Georgia Inst Technol, Sch Elect & Comp Engn, Atlanta, GA 30332 USA.
[Du, Yingzi; Belcher, Craig] Indiana Univ Purdue Univ, Dept Elect & Comp Engn, Indianapolis, IN 46202 USA.
RP Ives, RW (reprint author), USN Acad, Dept Elect & Comp Engn, Annapolis, MD 21402 USA.
EM ives@usna.edu
FU Department of Defense; National Institute of Justice [2007-DE-BX-K182]
FX For the iCAP software implementation of the Daugman algorithm and advice
on the use of the SDK, the authors gratefully acknowledge Dr. Jun Hong,
Chief Scientist, Mr. Joseph Hwang, Senior Software Engineer, Mr. Samir
Shah, Senior Software Engineer, and Mr. Tim Meyerho., Project Manager,
LG Electronics U. S. A. Inc., Iris Technology Division. This work was
supported in part by the Department of Defense and the National
Institute of Justice (Award no. 2007-DE-BX-K182). This work was
conducted under USNA IRB approval no. USNA. 2007.0004-CR01-EM4-A.
NR 17
TC 5
Z9 5
U1 0
U2 3
PU HINDAWI PUBLISHING CORPORATION
PI NEW YORK
PA 410 PARK AVENUE, 15TH FLOOR, #287 PMB, NEW YORK, NY 10022 USA
SN 1687-6172
J9 EURASIP J ADV SIG PR
JI EURASIP J. Adv. Signal Process.
PY 2010
AR 680845
DI 10.1155/2010/680845
PG 9
WC Engineering, Electrical & Electronic
SC Engineering
GA 623FW
UT WOS:000279725100001
ER
PT J
AU Rakvic, RN
Ngo, H
Broussard, RP
Ives, RW
AF Rakvic, Ryan N.
Ngo, Hau
Broussard, Randy P.
Ives, Robert W.
TI Comparing an FPGA to a Cell for an Image Processing Application
SO EURASIP JOURNAL ON ADVANCES IN SIGNAL PROCESSING
LA English
DT Article
AB Modern advancements in configurable hardware, most notably Field-Programmable Gate Arrays (FPGAs), have provided an exciting opportunity to discover the parallel nature of modern image processing algorithms. On the other hand, PlayStation3 (PS3) game consoles contain a multicore heterogeneous processor known as the Cell, which is designed to perform complex image processing algorithms at a high performance. In this research project, our aim is to study the differences in performance of a modern image processing algorithm on these two hardware platforms. In particular, Iris Recognition Systems have recently become an attractive identification method because of their extremely high accuracy. Iris matching, a repeatedly executed portion of a modern iris recognition algorithm, is parallelized on an FPGA system and a Cell processor. We demonstrate a 2.5 times speedup of the parallelized algorithm on the FPGA system when compared to a Cell processor-based version.
C1 [Rakvic, Ryan N.; Ngo, Hau; Ives, Robert W.] USN Acad, Dept Elect & Comp Engn, Annapolis, MD 21402 USA.
[Broussard, Randy P.] USN Acad, Dept Syst Engn, Annapolis, MD 21402 USA.
RP Rakvic, RN (reprint author), USN Acad, Dept Elect & Comp Engn, Annapolis, MD 21402 USA.
EM rakvic@usna.edu
NR 16
TC 7
Z9 7
U1 0
U2 2
PU HINDAWI PUBLISHING CORPORATION
PI NEW YORK
PA 410 PARK AVENUE, 15TH FLOOR, #287 PMB, NEW YORK, NY 10022 USA
SN 1687-6172
J9 EURASIP J ADV SIG PR
JI EURASIP J. Adv. Signal Process.
PY 2010
AR 764838
DI 10.1155/2010/764838
PG 7
WC Engineering, Electrical & Electronic
SC Engineering
GA 623GY
UT WOS:000279728300001
ER
PT J
AU Tao, J
Zheng, YHR
Xiao, CS
Yang, TC
Yang, WB
AF Tao, Jun
Zheng, Yahong Rosa
Xiao, Chengshan
Yang, T. C.
Yang, Wen-Bin
TI Channel Equalization for Single Carrier MIMO Underwater Acoustic
Communications
SO EURASIP JOURNAL ON ADVANCES IN SIGNAL PROCESSING
LA English
DT Article
ID DECISION-FEEDBACK EQUALIZER; PASSIVE-PHASE CONJUGATION; TIME-REVERSAL
AB Multiple-input multiple-output (MIMO) underwater acoustic (UWA) channels introduce both space-time interference (STI) and time-varying phase distortion for transmitted signals. In such cases, the equalized symbols produced by conventional equalizer aiming for STI cancelation suffer phase rotation and thus cannot be reliably detected. In this paper, we propose a new equalization scheme for high data rate single carrier MIMO UWA channels. Different from existing methods employing joint equalization and symbolwise phase tracking technology, the proposed scheme decouples the interference cancelation (IC) operation and the phase compensation operation, leading to a generalized equalizer structure combining an IC equalizer with a phase compensator. The decoupling of the two functionalities leads to robust signal detection, which is most desirable in practical UWA applications. MIMO linear equalizer (LE) is adopted to remove space-time interference, and a groupwise phase estimation and correction method is used to compensate the phase rotation. In addition, the layered space-time processing technology is adopted to enhance the equalization performance. The proposed equalization scheme is tested to be very robust with extensive experimental data collected at Kauai, Hawaii, in September 2005, and Saint Margaret's Bay, Nova Scotia, Canada, in May 2006.
C1 [Zheng, Yahong Rosa; Xiao, Chengshan] Missouri Univ Sci & Technol, Dept Elect & Comp Engn, Rolla, MO 65409 USA.
[Tao, Jun] Univ Missouri, Dept Elect & Comp Engn, Columbia, MO 65211 USA.
[Yang, T. C.] USN, Res Lab, Acoust Div, Washington, DC 20375 USA.
[Yang, Wen-Bin] Natl Inst Stand & Technol, Adv Network Technol Div, Informat Technol Lab, Gaithersburg, MD 20899 USA.
RP Xiao, CS (reprint author), Missouri Univ Sci & Technol, Dept Elect & Comp Engn, Rolla, MO 65409 USA.
EM xiaoc@mst.edu
FU Office of Naval Research [N00014-07-1-0219, N00014-10-1-0174]; National
Science Foundation [ECCS-0846486, CCF-0915846]
FX This work was supported in part by the Office of Naval Research under
Grants N00014-07-1-0219 and N00014-10-1-0174 and the National Science
Foundation under Grants ECCS-0846486 and CCF-0915846. The work of T. C.
Yang and W.-B. Yang was supported by the Office of Naval Research. The
authors are grateful to Professor Tolga Duman and Dr. Subhadeep Roy for
providing the transmitted data of MakaiEx05.
NR 28
TC 13
Z9 14
U1 1
U2 11
PU HINDAWI PUBLISHING CORPORATION
PI NEW YORK
PA 410 PARK AVENUE, 15TH FLOOR, #287 PMB, NEW YORK, NY 10022 USA
SN 1687-6172
J9 EURASIP J ADV SIG PR
JI EURASIP J. Adv. Signal Process.
PY 2010
AR 281769
DI 10.1155/2010/281769
PG 17
WC Engineering, Electrical & Electronic
SC Engineering
GA 637AQ
UT WOS:000280787000001
ER
PT J
AU Dharmasena, KP
Queheillalt, DT
Wadley, HNG
Dudt, P
Chen, Y
Knight, D
Evans, AG
Deshpande, VS
AF Dharmasena, K. P.
Queheillalt, D. T.
Wadley, H. N. G.
Dudt, P.
Chen, Y.
Knight, D.
Evans, A. G.
Deshpande, V. S.
TI Dynamic compression of metallic sandwich structures during planar
impulsive loading in water
SO EUROPEAN JOURNAL OF MECHANICS A-SOLIDS
LA English
DT Article
DE Sandwich panels; Underwater impulsive loading; Fluid/structure
interaction; Metal foams, lattices and honeycombs
ID PANELS; BEAMS; BLAST; RESISTANCE; BEHAVIOR; PLATES
AB The compressive response of rigidly supported stainless steel sandwich panels subject to a planar impulsive load in water is investigated. Five core topologies that spanned a wide range of crush strengths and strain-dependencies were investigated. They included a (i) square-honeycomb, (ii) triangular honeycomb, (iii) multi-layer pyramidal truss, (iv) triangular corrugation and (v) diamond corrugation, all with a core relative density of approximately 5%. Quasi-statically, the honeycombs had the highest peak strength, but exhibited strong softening beyond the peak strength. The truss and corrugated cores had significantly lower strength, but a post yield plateau that extended to beyond a plastic strain of 60% similar to metal foams. Dynamically, the transmitted pressures scale with the quasi-static strength. The final transmitted momentum increased slowly with core strength (provided the cores were not fully crushed). It is shown that the essential aspects of the dynamic response, such as the transmitted momentum and the degree of core compression, are captured with surprising fidelity by modeling the cores as equivalent metal foams having plateau strengths represented by the quasi-static peak strength. The implication is that, despite considerable differences in core topology and dynamic deformation modes, a simple foam-like model replicates the dynamic response of rigidly supported sandwich panels subject to planar impulsive loads. It remains to ascertain whether such foam-like models capture more nuanced aspects of sandwich panel behavior when locally loaded in edge clamped configurations. (C) 2009 Elsevier Masson SAS. All rights reserved.
C1 [Dharmasena, K. P.; Queheillalt, D. T.; Wadley, H. N. G.] Univ Virginia, Dept Mat Sci & Engn, Charlottesville, VA 22904 USA.
[Dudt, P.; Chen, Y.; Knight, D.] Naval Surface Warfare Ctr, Carderock, MD 20817 USA.
[Evans, A. G.] Univ Calif Santa Barbara, Dept Mech Engn, Santa Barbara, CA 93106 USA.
[Deshpande, V. S.] Univ Cambridge, Dept Engn, Cambridge CB2 1PZ, England.
RP Dharmasena, KP (reprint author), Univ Virginia, Dept Mat Sci & Engn, 395 McCormick Rd, Charlottesville, VA 22904 USA.
EM kumar@virginia.edu
RI Deshpande, Vikram/C-6750-2013
OI Deshpande, Vikram/0000-0003-3899-3573
FU Office of Naval Research [N00014-03-1-0281]
FX This research was supported by the Office of Naval Research grant number
N00014-03-1-0281 on Blast and Fragmentation Protection Sandwich Panel
Concepts for Stainless Steel Monohull designs monitored by Drs. Edward
Johnson and Daniel Tam.
NR 21
TC 30
Z9 35
U1 5
U2 41
PU GAUTHIER-VILLARS/EDITIONS ELSEVIER
PI PARIS
PA 23 RUE LINOIS, 75015 PARIS, FRANCE
SN 0997-7538
J9 EUR J MECH A-SOLID
JI Eur. J. Mech. A-Solids
PD JAN-FEB
PY 2010
VL 29
IS 1
BP 56
EP 67
DI 10.1016/j.euromechsol.2009.05.003
PG 12
WC Mechanics
SC Mechanics
GA 510OU
UT WOS:000271100200007
ER
PT J
AU Rahman, AS
AF Rahman, Ahmed S.
TI Fighting the forces of gravity - Seapower and maritime trade between the
18th and 20th centuries
SO EXPLORATIONS IN ECONOMIC HISTORY
LA English
DT Article
DE Trade; War; Naval history
ID INTERNATIONAL-TRADE; CONFLICT; FLOWS; ARRANGEMENTS; IMPACT
AB How have large naval powers affected international commerce in history? Using a panel gravity model, we investigate the interactions of wars, alliances, naval power and trade from the 18th to mid-20th centuries. Striking an alliance with a naval power helps a country's interstate commerce. Fighting a naval power on the other hand limits a country's interstate commerce. Further, we split this effect on trade between an extensive effect (effect on a country's trade when fighting a naval power) and an intensive effect (effect of that power gaining more naval strength). We conclude that the intensive effect is a powerful one - large navies have historically been destroyers of trade when mobilized to combat. Published by Elsevier Inc.
C1 USN Acad, Dept Econ, Annapolis, MD 21402 USA.
RP Rahman, AS (reprint author), USN Acad, Dept Econ, 589 McNair Rd, Annapolis, MD 21402 USA.
EM rahman@usna.edu
NR 54
TC 3
Z9 3
U1 1
U2 1
PU ACADEMIC PRESS INC ELSEVIER SCIENCE
PI SAN DIEGO
PA 525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
SN 0014-4983
J9 EXPLOR ECON HIST
JI Explor. Econ. Hist.
PD JAN
PY 2010
VL 47
IS 1
BP 28
EP 48
DI 10.1016/j.eeh.2009.05.007
PG 21
WC Economics; History Of Social Sciences
SC Business & Economics; Social Sciences - Other Topics
GA 556AP
UT WOS:000274559200002
ER
PT S
AU Osvik, DA
Bos, JW
Stefan, D
Canright, D
AF Osvik, Dag Arne
Bos, Joppe W.
Stefan, Deian
Canright, David
BE Hong, S
Iwata, T
TI Fast Software AES Encryption
SO FAST SOFTWARE ENCRYPTION
SE Lecture Notes in Computer Science
LA English
DT Proceedings Paper
CT 17th International Workshop on Fast Software Encryption
CY FEB 07-10, 2010
CL Seoul, SOUTH KOREA
SP Korea Univ, CIST, Korea Inst Informat Secur & Cryptog, Elect & Telecommun Res Inst, Ellipsis, Korea Univ, LG CNS, Natl Inst Math Sci
DE Advanced Encryption Standard (AES); Advanced Virtual RISC (AVR);
Advanced RISC Machine (ARM); Cell Broadband Engine; Graphics Processing
Unit (GPU); Symmetric Cryptography
ID PROCESSOR; ATTACK
AB This paper presents new software speed records for AES-128 encryption for architectures at both ends of the performance spectrum. On the one side we target the low-end 8-bit AVR rnicrocontrollers and 32-bit ARM microprocessors, while on the other side of the spectrum we consider the high-performing Cell broadband engine and NVIDIA graphics processing units (GPUs). Platform specific techniques are detailed, explaining how the software speed records on these architectures are obtained. Additionally, this paper presents the first AES decryption implementation for GPU architectures.
C1 [Osvik, Dag Arne; Bos, Joppe W.] Ecole Polytech Fed Lausanne, Lab Cryptol Algorithms, CH-1015 Lausanne, Switzerland.
[Stefan, Deian] Cooper Union Adv Sci & Art, Dept Elect Engn, New York, NY 10003 USA.
[Canright, David] Naval Postgrad Sch, Appl Math, Monterey, CA 93943 USA.
RP Osvik, DA (reprint author), Ecole Polytech Fed Lausanne, Lab Cryptol Algorithms, CH-1015 Lausanne, Switzerland.
NR 33
TC 24
Z9 25
U1 0
U2 1
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0302-9743
BN 978-3-642-13857-7
J9 LECT NOTES COMPUT SC
PY 2010
VL 6147
BP 75
EP +
PG 3
WC Computer Science, Software Engineering; Computer Science, Theory &
Methods
SC Computer Science
GA BQL22
UT WOS:000281239500005
ER
PT J
AU Pande, CS
Imam, MA
Srivatsan, TS
AF Pande, C. S.
Imam, M. A.
Srivatsan, T. S.
BE Srivatsan, TS
Imam, MA
TI FUNDAMENTALS OF FATIGUE CRACK INITIATION and PROPAGATION: A REVIEW
SO FATIGUE OF MATERIALS: ADVANCES AND EMERGENCES IN UNDERSTANDING
LA English
DT Proceedings Paper
CT 5th Symposium on Fatigue of Materials - Advances and Emergences in
Understanding held during Materials Science and Technology Meeting
CY OCT 17-21, 2010
CL Houston, TX
SP Minerals, Met & Mat Soc, Mech Behav Comm, ASM Int, Mech Behav Comm, Minerals, Met & Mat Soc
DE fatigue; metallic materials; dislocations; crack shielding; threshold
ID HIGH STRESS FATIGUE; SINGLE-CRYSTALS; DISLOCATION EMISSION; STAGE-I;
GROWTH; MODEL; METALS; THRESHOLD; TIP; PLASTICITY
AB The prediction of fatigue properties of structural materials is rightly recognized as one of the most important problems in the domain of engineering. Therefore, an understanding of the fundamental nature of fatigue crack initiation and fatigue crack growth in metals spanning the entire spectrum of conventional and advanced has long been a major scientific challenge starting with the first dislocation model of fatigue crack growth put forth by Bilby and co-workers in 1963 (B. A. Bilby, A. H. Cottrell, and K. H. Swinden, "The Spread of Plastic Yield From a Notch", Proceedings of the Royal Society of London, 1963: A272:304). Understanding the process of emission of dislocations from cracks, and determining precise expressions for size of the plastic zone size, the crack-tip opening displacement, and the energy release rate of the cracks, are some of the major technical issues for this purpose. In this review, we summarize briefly some of the important recent results and how they can contribute to enabling and enriching our understanding of the phenomena.
C1 [Pande, C. S.; Imam, M. A.] Naval Res Lab, Mat Sci & Technol Div, Washington, DC 20375 USA.
RP Pande, CS (reprint author), Naval Res Lab, Mat Sci & Technol Div, 4555 Overlook Ave SW, Washington, DC 20375 USA.
NR 71
TC 0
Z9 0
U1 2
U2 4
PU JOHN WILEY & SONS
PI CHICHESTER
PA THE ATRIUM, SOUTHERN GATE, CHICHESTER, W SUSSEX PO 19 8SQ, ENGLAND
BN 978-0-47094-318-2
PY 2010
BP 3
EP 18
PG 16
WC Engineering, Mechanical; Materials Science, Multidisciplinary
SC Engineering; Materials Science
GA BHA23
UT WOS:000324803400001
ER
PT J
AU Holtz, RL
AF Holtz, Ronald L.
BE Srivatsan, TS
Imam, MA
TI LINEARITY OF FATIGUE CRACK GROWTH RATES IN THE NEAR-THRESHOLD REGIME
SO FATIGUE OF MATERIALS: ADVANCES AND EMERGENCES IN UNDERSTANDING
LA English
DT Proceedings Paper
CT 5th Symposium on Fatigue of Materials - Advances and Emergences in
Understanding held during Materials Science and Technology Meeting
CY OCT 17-21, 2010
CL Houston, TX
SP Minerals, Met & Mat Soc, Mech Behav Comm, ASM Int, Mech Behav Comm, Minerals, Met & Mat Soc
DE Threshold; Kmax Effects; Unigrow Model; Unified Approach
AB Based upon comprehensive analysis of our experimental data and of literature data, we postulate that many near-threshold fatigue crack growth data are represented very well by a modified Paris law in terms of a composite driving force of the Walker form, that depends on both cyclic stress intensity Delta K and maximum stress intensity K-MAX-In the near-threshold regime, the leading terms in the crack growth rate are linear in terms of this composite driving force. Deviations from linear behavior in the near-threshold regime are associated with crack growth rate dependent environmental influences. This alternative method of threshold determination explicitly depends on both Delta K and K-MAX, in contrast to a single threshold defined in terms of Delta K alone. We discuss the implications of this near-threshold behavior in the context of the new Unigrow model of Noroozi, Glinka & Lambert and the Unified Approach of Sadananda & Vasudevan.
C1 Naval Res Lab, Washington, DC 20375 USA.
RP Holtz, RL (reprint author), Naval Res Lab, Washington, DC 20375 USA.
EM ronald.holtz@nrl.navy.mil
NR 12
TC 0
Z9 0
U1 0
U2 0
PU JOHN WILEY & SONS
PI CHICHESTER
PA THE ATRIUM, SOUTHERN GATE, CHICHESTER, W SUSSEX PO 19 8SQ, ENGLAND
BN 978-0-47094-318-2
PY 2010
BP 43
EP 53
PG 11
WC Engineering, Mechanical; Materials Science, Multidisciplinary
SC Engineering; Materials Science
GA BHA23
UT WOS:000324803400004
ER
PT J
AU Pao, PS
Goswami, R
Bayles, RA
Longazel, TM
Holtz, RL
AF Pao, P. S.
Goswami, R.
Bayles, R. A.
Longazel, T. M.
Holtz, R. L.
BE Srivatsan, TS
Imam, MA
TI CORROSION FATIGUE CRACK GROWTH IN SENSITIZED Al 5083
SO FATIGUE OF MATERIALS: ADVANCES AND EMERGENCES IN UNDERSTANDING
LA English
DT Proceedings Paper
CT 5th Symposium on Fatigue of Materials - Advances and Emergences in
Understanding held during Materials Science and Technology Meeting
CY OCT 17-21, 2010
CL Houston, TX
SP Minerals, Met & Mat Soc, Mech Behav Comm, ASM Int, Mech Behav Comm, Minerals, Met & Mat Soc
DE Fatigue crack growth; Microstructure; Sensitization; Aluminum; Corrosion
ID MG ALLOY; AA5083 AL-4.5MG-1.0MN
AB The corrosion fatigue crack growth kinetics of sensitized (175 degrees C for 1 - 1000 hrs) and as-received (H131) Al 5083 were investigated. TEM investigations reveal the formation of magnesium-rich beta phase (Al3Mg2) at the grain boundaries after few hours aging at 175 degrees C while in as-received Al 5083 such beta phase is absent. After prolonged sensitization at 175 degrees C, the grain boundaries are covered with continuous beta phase. The presence of grain boundary beta significantly lowers the high stress-ratio corrosion fatigue crack growth threshold and increases the crack growth rate in sensitized Al 5083 compared to those of as-received Al 5083. Such fatigue degradation is proportional to the amount of beta phase present at the grain boundaries.
C1 [Pao, P. S.; Bayles, R. A.; Longazel, T. M.; Holtz, R. L.] Naval Res Lab, Washington, DC 20375 USA.
RP Pao, PS (reprint author), Naval Res Lab, Washington, DC 20375 USA.
NR 13
TC 3
Z9 3
U1 0
U2 2
PU JOHN WILEY & SONS
PI CHICHESTER
PA THE ATRIUM, SOUTHERN GATE, CHICHESTER, W SUSSEX PO 19 8SQ, ENGLAND
BN 978-0-47094-318-2
PY 2010
BP 85
EP 91
PG 7
WC Engineering, Mechanical; Materials Science, Multidisciplinary
SC Engineering; Materials Science
GA BHA23
UT WOS:000324803400007
ER
PT J
AU Pande, CS
AF Pande, Chandra S.
BE Srivatsan, TS
Imam, MA
TI CRACK-DISLOCATION INTERACTION AND IT'S IMPLICATION FOR A FUNDAMENTAL
UNDERSTANDING OF FATIGUE
SO FATIGUE OF MATERIALS: ADVANCES AND EMERGENCES IN UNDERSTANDING
LA English
DT Proceedings Paper
CT 5th Symposium on Fatigue of Materials - Advances and Emergences in
Understanding held during Materials Science and Technology Meeting
CY OCT 17-21, 2010
CL Houston, TX
SP Minerals, Met & Mat Soc, Mech Behav Comm, ASM Int, Mech Behav Comm, Minerals, Met & Mat Soc
DE fatigue; dislocations; crack shielding; thresholds
ID FREE ZONE; MODEL; FRACTURE; COPPER; METALS; SLIP; TIP
AB In order to develop a basic understanding of fatigue process we examine the case of two arrays of discrete dislocations in the presence of a semi-infinite crack. From the elasto-static formulation for isotropic materials utilizing complex variable functions, we have developed the required equilibrium forces. The analysis gives the number of dislocations in equilibrium with the crack at a given load, and the size of the dislocation free zone. The resulting analysis also yields the size of the plastic zone and an estimate of the critical threshold for further dislocation emission. These results will be compared with dislocation analysis results reported by other workers, especially Lin and Thomson (I. H. Lin and R. Thomson, "Cleavage, Dislocation Emission, and Shielding for Cracks under General Loading" (Ada Metallurgica, 1986: 34: 187-206). The applicability of these results for a quantitative description of the phenomenon of fatigue in general and fatigue thresholds in particular will also be briefly discussed.
C1 Naval Res Lab, Mat Sci & Technol Div, Washington, DC 20375 USA.
RP Pande, CS (reprint author), Naval Res Lab, Mat Sci & Technol Div, 4555 Overlook Ave SW, Washington, DC 20375 USA.
NR 21
TC 0
Z9 0
U1 2
U2 2
PU JOHN WILEY & SONS
PI CHICHESTER
PA THE ATRIUM, SOUTHERN GATE, CHICHESTER, W SUSSEX PO 19 8SQ, ENGLAND
BN 978-0-47094-318-2
PY 2010
BP 317
EP 325
PG 9
WC Engineering, Mechanical; Materials Science, Multidisciplinary
SC Engineering; Materials Science
GA BHA23
UT WOS:000324803400020
ER
PT S
AU Kurti, RS
Halterman, K
Shori, RK
Arian, C
Wardlaw, MJ
AF Kurti, R. Steven
Halterman, Klaus
Shori, Ramesh K.
Arian, Cyrus
Wardlaw, Michael J.
BE Tankala, K
Dawson, JW
TI Creating discrete cylindrical vector beams using coherently combined
fiber arrays
SO FIBER LASERS VII: TECHNOLOGY, SYSTEMS, AND APPLICATIONS
SE Proceedings of SPIE
LA English
DT Proceedings Paper
CT 7th Conference on Fiber Lasers - Technology, Systems, and Applications
CY JAN 25-28, 2010
CL San Francisco, CA
SP SPIE, Fianium Ltd, PolarOnyx Inc
DE Cylindrical vector beam; coherent beam combining; radial vector beam;
fiber array; cylindrical symmetry; radial polarization; azimuthal
polarization
ID RADIALLY POLARIZED BEAMS; LASER-BEAM; GENERATION; BIREFRINGENCE;
COMBINATION; AZIMUTHAL; DEVICE; PRISM; MODE
AB A novel method is presented for beam shaping far field intensity distributions using coherently combined fiber arrays. Traditionally, coherent arrays have been composed of linearly polarized elements having their polarization vector along a common axis. In this novel method, the fibers are arranged uniformly on the perimeter of a circle, and the linearly polarized beams are oriented with their polarization vectors arranged in a cylindrical fashion such that each subsequent vector is rotated by 2 pi/N where N is the number of elements on the circle. The elements each have the same Gaussian intensity distribution and power. The ensemble yields a far field intensity pattern that is a good approximation to a cylindrical vector (CV) beam which is characterized by a nonuniform polarization distribution and a null in the center of the beam. These synthetically created CV beams, or discrete cylindrical vector (DCV) beams, can be represented in a closed form solution to predict the far field intensity distributions. This solution is shown to agree with experimental results where several values of N, the number of elements, were tested. In addition, some more complex geometries such as nested geometries, fractal geometries, and some nonuniform geometries have been simulated, all of which also have a central null in the beam and have a nonuniform polarization distribution. These results are in contrast to linearly polarized beams, where the intensity peaks on axis, and from traditional cylindrical vector beams, which are generated by a single laser cavity.
C1 [Kurti, R. Steven] Loma Linda Univ, Sch Dent, Loma Linda, CA 92350 USA.
RP Halterman, K (reprint author), USN, Res & Intelligence Dept, Div Phys, Air Warfare Ctr, China Lake, CA 93555 USA.
EM klaus.halterman@navy.mil
RI Halterman, Klaus/G-3826-2012
NR 31
TC 0
Z9 0
U1 0
U2 3
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-7976-1
J9 PROC SPIE
PY 2010
VL 7580
AR 75801P
DI 10.1117/12.841588
PG 8
WC Optics; Physics, Applied
SC Optics; Physics
GA BRS51
UT WOS:000283536200054
ER
PT J
AU Smith, PJ
AF Smith, Paul J.
BE Wirsing, RG
Ahrari, E
TI China Tibet: At the Crossroads of Ethnic Nationalism and Geopolitical
Rivalry
SO FIXING FRACTURED NATIONS: THE CHALLENGE OF ETHNIC SEPARATISM IN THE
ASIA-PACIFIC
SE Critical Studies of the Asia-Pacific Series
LA English
DT Article; Book Chapter
C1 USN, War Coll, Newport, RI USA.
RP Smith, PJ (reprint author), USN, War Coll, Newport, RI USA.
NR 61
TC 0
Z9 0
U1 0
U2 0
PU PALGRAVE
PI BASINGSTOKE
PA HOUNDMILLS, BASINGSTOKE RG21 6XS, ENGLAND
BN 978-0-230-28127-1
J9 CRIT STUD ASIA PAC S
PY 2010
BP 206
EP 227
D2 10.1057/9780230281271
PG 22
WC Area Studies; Ethnic Studies
SC Area Studies; Ethnic Studies
GA BXK62
UT WOS:000296249700011
ER
PT S
AU Burgess, JS
Baldwin, JW
Robinson, JT
Bulat, FA
Houston, BH
AF Burgess, James S.
Baldwin, Jeffrey W.
Robinson, Jeremy T.
Bulat, Felipe A.
Houston, Brian H.
BE Nelson, DJ
Brammer, CN
TI Fluorinated Carbon Nanomaterials: XeF2 Fluorination of Graphene
SO FLUORINE-RELATED NANOSCIENCE WITH ENERGY APPLICATIONS
SE ACS Symposium Series
LA English
DT Article; Book Chapter
ID ELECTROCHEMICAL CHARACTERISTICS; REVERSIBLE HYDROGENATION; LITHIUM
BATTERIES; XENON DIFLUORIDE; NANOTUBES; SUPERCAPACITORS; NANOSHEETS;
GRAPHANE; FLUORIDE; DENSITY
AB The material properties of graphene, such as electrical conductivity, optical transmission, and chemical reactivity, can be drastically altered with fluorination, enabling new utility from this already promising material. Stoichiometric control of the fluorination of graphene was made possible by controlled exposure of graphene films on various substrates (copper, silicon dioxide, and silicon on insulator (SOI)). Reacting XeF2 gas to a single side of the graphene sheet, with the underside protected by a copper or SiO2 substrate, results in a fluorine content of 20% in the film (C4F) as determined by x-ray photoelectron spectroscopy (XPS). XeF2 gas exposure to both sides of graphene on a silicon on insulator (SOI) substrate results in fully fluorinated graphene (50% in the film, CF). Quantum mechanical calculations are presented that demonstrate the stability of single- and double-sided fluorinated graphene. To compare this fluorination method to other relevant carbon materials, single-walled carbon nanotubes (SWNTs) were exposed under the same reaction conditions, where the maximum fluorine content is 5% (C19F). The chemical reactivity and stability of fluorinated graphene was explored by thermal desorption and hydrazine reduction. For single-side fluorine addition, fluorine begins to dissociate from the material at less than 100 degrees C and is completely removed at 300 degrees C. Hydrazine reduction showed complete removal of the fluorine for single-sided fluorination, but with nitrogen incorporation in the graphene.
C1 [Burgess, James S.; Baldwin, Jeffrey W.; Robinson, Jeremy T.; Houston, Brian H.] USN, Res Lab, Washington, DC 20375 USA.
[Bulat, Felipe A.] Global Def Technol & Syst Inc, Crofton, MD 21114 USA.
RP Burgess, JS (reprint author), USN, Res Lab, Washington, DC 20375 USA.
EM james.burgess.ctr@nrl.navy.mil
NR 50
TC 0
Z9 0
U1 1
U2 8
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 SIXTEENTH ST NW, WASHINGTON, DC 20036 USA
SN 0097-6156
BN 978-0-8412-2610-4
J9 ACS SYM SER
JI ACS Symp. Ser.
PY 2010
VL 1064
BP 11
EP 30
PG 20
WC Chemistry, Applied; Energy & Fuels; Nanoscience & Nanotechnology
SC Chemistry; Energy & Fuels; Science & Technology - Other Topics
GA BAQ14
UT WOS:000305161400002
ER
PT S
AU Berzins, V
Luqi
Musial, PM
AF Berzins, Vladis
Luqi
Musial, Peter M.
BE Choppy, C
Sokolsky, O
TI Formal Reasoning about Software Object Translations
SO FOUNDATIONS OF COMPUTER SOFTWARE: FUTURE TRENDS AND TECHNIQUES FOR
DEVELOPMENT
SE Lecture Notes in Computer Science
LA English
DT Proceedings Paper
CT 15th Monterey Workshop on Foundation of Computer Software - Future
Trends and Techniques for Development
CY SEP 24-26, 2008
CL Budapest, HUNGARY
SP N Amer Primary Care Res Grp
ID SYSTEM
AB In this work we examine the problem of verifying translations from outputs of one system to the inputs of another system, which we refer to as the output-to-input translation problem. We present a formalization of this problem along with a verification mechanism based on constraint logic programming. Composition of systems is an important issue in the software reuse domain, and has applicability in other areas of software engineering such as transformation of information from one phase of the development process to another. Some challenges are to verify the translation mechanisms that may be needed to connect independently designed components and assess to what degree is the consumer component functionality enabled after the composition takes place. To this end we use constraint logic programming modeling techniques. Our model allows formalization of the translation problem in the form of constraints and relations between the outputs and the inputs of involved components. Since CLP tools are computationally expensive, we identify characteristics of translation problems for which our technique is practical. We conclude with an application of our translation framework within the Documentation Driven Software Development methodology.
C1 [Berzins, Vladis; Luqi; Musial, Peter M.] USN, Postgrad Sch, Dept Comp Sci, Monterey, CA 93943 USA.
RP Berzins, V (reprint author), USN, Postgrad Sch, Dept Comp Sci, 1411 Cunningham Rd, Monterey, CA 93943 USA.
NR 26
TC 0
Z9 0
U1 0
U2 0
PU SPRINGER-VERLAG BERLIN
PI BERLIN
PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY
SN 0302-9743
BN 978-3-642-12565-2
J9 LECT NOTES COMPUT SC
PY 2010
VL 6028
BP 43
EP 58
PG 16
WC Computer Science, Software Engineering; Computer Science, Theory &
Methods
SC Computer Science
GA BPG68
UT WOS:000278826600003
ER
PT S
AU Rabinovich, WS
Moore, CI
Burris, HR
Murphy, JL
Suite, MR
Mahon, R
Ferraro, MS
Goetz, PG
Thomas, LM
Font, C
Gilbreath, GC
Xu, B
Binari, S
Hacker, K
Reese, S
Freeman, WT
Frawley, S
AF Rabinovich, W. S.
Moore, C. I.
Burris, H. R.
Murphy, J. L.
Suite, M. R.
Mahon, R.
Ferraro, M. S.
Goetz, P. G.
Thomas, L. M.
Font, C.
Gilbreath, G. C.
Xu, B.
Binari, S.
Hacker, K.
Reese, S.
Freeman, W. T.
Frawley, S.
BE Hemmati, H
TI Free Space Optical Communications Research at the U. S. Naval Research
Laboratory
SO FREE-SPACE LASER COMMUNICATION TECHNOLOGIES XXII
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference on Free-Space Laser Communication Technologies XXII
CY JAN 26-28, 2010
CL San Francisco, CA
SP SPIE
DE Free space optical communication; Lasercom; Modulating retro-reflector;
Retro-modulator; Maritime; Naval; Optical propagation; gigabit Ethernet;
high bandwidth; frequency allocation; ship-to-ship communication;
Trident Warrior; robot communication; Packbot; low probability of
intercept; anti-jam
AB Free space optical (FSO) communication has enjoyed a renewal of interest in the past decade driven by increasing data rate requirements and decreasing amounts of radio frequency spectrum. These needs exist in both the commercial and military sectors. However military communications requirements differ in other ways. At the U.S. Naval Research Laboratory (NRL) we have been conducting research on FSO communications for over ten years with an emphasis on tactical applications. NRL's FSO research has covered propagation studies in the maritime domain, new component development, and systems demonstrations. In addition NRL has developed both conventional, direct, laser communications systems and retro-reflecting systems. In this paper we review some of this work and discuss possible future applications of FSO communications
C1 [Rabinovich, W. S.; Moore, C. I.; Burris, H. R.; Murphy, J. L.; Suite, M. R.; Mahon, R.; Ferraro, M. S.; Goetz, P. G.; Thomas, L. M.; Font, C.; Gilbreath, G. C.; Xu, B.; Binari, S.] USN, Res Lab, Washington, DC 20375 USA.
RP Rabinovich, WS (reprint author), USN, Res Lab, 4555 Overlook Ave, Washington, DC 20375 USA.
NR 18
TC 3
Z9 3
U1 3
U2 10
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-7983-9
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7587
AR 758702
DI 10.1117/12.843682
PG 15
WC Optics; Physics, Applied
SC Optics; Physics
GA BSN22
UT WOS:000284997700001
ER
PT J
AU Sanghera, JS
Shaw, LB
Florea, CM
Pureza, P
Nguyen, VQ
Kung, F
Gibson, D
Aggarwal, ID
AF Sanghera, Jas S.
Shaw, L. Brandon
Florea, C. M.
Pureza, P.
Nguyen, V. Q.
Kung, F.
Gibson, Dan
Aggarwal, I. D.
BE Pal, B
TI Nonlinear Properties of Chalcogenide Glass Fibers
SO FRONTIERS IN GUIDED WAVE OPTICS AND OPTOELECTRONICS
LA English
DT Article; Book Chapter
ID STIMULATED BRILLOUIN-SCATTERING; OPTICAL-FIBERS; SLOW LIGHT; LASER;
GENERATION; AS2S3; GAIN; SPEED
C1 [Sanghera, Jas S.; Shaw, L. Brandon; Florea, C. M.; Pureza, P.; Nguyen, V. Q.; Kung, F.; Gibson, Dan; Aggarwal, I. D.] Naval Res Lab, Washington, DC 20375 USA.
RP Sanghera, JS (reprint author), Naval Res Lab, Washington, DC 20375 USA.
NR 39
TC 6
Z9 6
U1 0
U2 0
PU INTECH EUROPE
PI RIJEKA
PA JANEZA TRDINE9, RIJEKA, 51000, CROATIA
BN 978-953-7619-82-4
PY 2010
BP 29
EP 48
D2 10.5772/3033
PG 20
WC Optics; Physics, Applied
SC Optics; Physics
GA BD7WK
UT WOS:000363651900003
ER
PT S
AU Golden, JP
Kim, J
Anderson, GP
Hashemi, N
Howell, PJ
Ligler, FS
AF Golden, Joel P.
Kim, Jason
Anderson, George P.
Hashemi, Nastaran
Howell, Peter J.
Ligler, Frances S.
BE Fauchet, PM
Miller, BL
TI A Microflow Cytometer on a Chip
SO FRONTIERS IN PATHOGEN DETECTION: FROM NANOSENSORS TO SYSTEMS
SE Proceedings of SPIE-The International Society for Optical Engineering
LA English
DT Proceedings Paper
CT Conference On Frontiers in Pathogen Detection - From Nanosensors to
Systems
CY JAN 23-25, 2010
CL San Francisco, CA
SP SPIE
DE flow cytometry; microfluidics; multi-analyte assay; coded microspheres;
microflow cytometer
AB A rapid, automated, multi-analyte Microflow Cytometer is being developed as a portable, field-deployable sensor for on-site diagnosis of biothreat agent exposure and environmental monitoring. The technology relies on a unique method for ensheathing a sample stream in continuous flow past an interrogation region where optical fibers provide excitation and collect emission. This approach efficiently focuses particles in the interrogation region of the fluidic channel, avoids clogging and provides for subsequent separation of the core and sheath fluids in order to capture the target for confirmatory assays and recycling of the sheath fluid. Fluorescently coded microspheres provide the capability for highly multiplexed assays. Optical analysis at four different wavelengths identified six sets of the coded microspheres recognizing Escherichia coli, Listeria, and Salmonella as well as cholera toxin, staphylococcal enterotoxin B (SEB), and ricin, and assay results were compared with those of a commercial Luminex analysis system.
C1 [Golden, Joel P.; Kim, Jason; Anderson, George P.; Hashemi, Nastaran; Howell, Peter J.; Ligler, Frances S.] USN, Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 USA.
RP Golden, JP (reprint author), USN, Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 USA.
EM joel.golden@nrl.navy.mil
RI Anderson, George/D-2461-2011; Hashemi, Nastaran/A-7645-2012; Howell,
Peter/H-8710-2012
OI Anderson, George/0000-0001-7545-9893; Hashemi,
Nastaran/0000-0001-8921-7588; Howell, Peter/0000-0003-3673-3145
NR 0
TC 0
Z9 0
U1 5
U2 9
PU SPIE-INT SOC OPTICAL ENGINEERING
PI BELLINGHAM
PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA
SN 0277-786X
BN 978-0-8194-7949-5
J9 P SOC PHOTO-OPT INS
PY 2010
VL 7553
AR 755308
DI 10.1117/12.842623
PG 6
WC Engineering, Biomedical; Nanoscience & Nanotechnology; Remote Sensing;
Optics
SC Engineering; Science & Technology - Other Topics; Remote Sensing; Optics
GA BSS06
UT WOS:000285577200005
ER
PT S
AU Calame, JP
AF Calame, Jeffrey P.
BE Wang, Q
Zhu, L
TI Nanostructure-Level Modeling of Nonlinear Energy Storage in
Polymer-Ceramic Nanocomposites
SO FUNCTIONAL POLYMER NANOCOMPOSITES FOR ENERGY STORAGE AND CONVERSION
SE ACS Symposium Series
LA English
DT Proceedings Paper
CT 237th National Meeting of the American-Chemical-Society
CY MAR 22-26, 2009
CL Salt Lake City, UT
SP Amer Chem Soc
AB Three-dimensional finite difference dielectric simulation routines have been developed to predict the overall dielectric behavior of a composite, based on the constituent properties and a computer representation of the micro- to nanostructure. The methodology allows for a nonlinear dependence of constituent polarization vs. the local electric field. Studies on nonlinear titanate-like inclusions in a linear matrix have been performed for both spheres-in-a-simple-cubic-lattice (SSCL) and randomly positioned spheres configurations. For a relatively low saturation inclusion material (similar to simple titanates), when arranged in a SSCL fashion at filling fraction p = 0.3 in a matrix with a dielectric constant of 12, the composite energy storage is reduced by nonlinear effects from the expected 2.5 J/cm(3) down to 1.04 J/cm(3) at 140 V/micron applied field. The energy storage situation' is improved by using inclusions with 5 times higher saturation polarization, reaching 10 J/cm(3) at p = 0.4 with 300 V/micron applied field.
C1 USN, Elect Sci & Technol Div, Res Lab, Washington, DC 20375 USA.
RP Calame, JP (reprint author), USN, Elect Sci & Technol Div, Res Lab, Washington, DC 20375 USA.
EM Jeffrey.calame@nrl.navy.mil
NR 1
TC 1
Z9 1
U1 0
U2 0
PU AMER CHEMICAL SOC
PI WASHINGTON
PA 1155 SIXTEENTH ST NW, WASHINGTON, DC 20036 USA
SN 0097-6156
BN 978-0-8412-2543-5
J9 ACS SYM SER
JI ACS Symp. Ser.
PY 2010
VL 1034
BP 1
EP 7
PG 7
WC Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials
Science, Composites; Optics; Polymer Science
SC Chemistry; Science & Technology - Other Topics; Materials Science;
Optics; Polymer Science
GA BVK43
UT WOS:000291705900001
ER
PT B
AU Chandar, R
Rothberg, B
AF Chandar, Rupali
Rothberg, Barry
BE Smith, BJ
Bastian, N
Higdon, SJU
Higdon, JL
TI Galaxy Mergers and Star Clusters: An HST Perspective
SO GALAXY WARS: STELLAR POPULATIONS AND STAR FORMATION IN INTERACTING
GALAXIES
SE Astronomical Society of the Pacific Conference Series
LA English
DT Proceedings Paper
CT Conference on Galaxy Wars: Stellar Populations and Star Formation in
Interacting Galaxies
CY JUL 19-22, 2009
CL E Tennessee State Univ, Johnson City, TN
SP ETSU Off Res & Sponsored Projects, ETSU Friends Astron
HO E Tennessee State Univ
ID ANTENNAE GALAXIES
AB One trademark of gas rich galaxy mergers is a firestorm of star formation. Many (and possibly most) of the stars in these systems form in compact star clusters, some of which reach extremely high masses. The spectacular images returned by the Hubble Space Telescope (HST) allow us to detect and study star clusters in nearby mergers in detail. We summarize recent results on the cluster systems in four nearby mergers: the Antennae, NGC 520, NGC 2623, and NGC 3256, based on multi-band imaging taken with HST.
C1 [Chandar, Rupali] Univ Toledo, Dept Phys & Astron, Toledo, OH 43606 USA.
[Rothberg, Barry] Naval Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
RP Chandar, R (reprint author), Univ Toledo, Dept Phys & Astron, Toledo, OH 43606 USA.
NR 10
TC 1
Z9 1
U1 0
U2 0
PU ASTRONOMICAL SOC PACIFIC
PI SAN FRANCISCO
PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 USA
BN 978-1-58381-726-1
J9 ASTR SOC P
PY 2010
VL 423
BP 116
EP +
PG 2
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA BSM97
UT WOS:000284979300022
ER
PT B
AU Rothberg, B
Fischer, J
AF Rothberg, B.
Fischer, J.
BE Smith, BJ
Bastian, N
Higdon, SJU
Higdon, JL
TI The Impact of Stellar Populations on the Dynamics of Merger Remnants
SO GALAXY WARS: STELLAR POPULATIONS AND STAR FORMATION IN INTERACTING
GALAXIES
SE Astronomical Society of the Pacific Conference Series
LA English
DT Proceedings Paper
CT Conference on Galaxy Wars: Stellar Populations and Star Formation in
Interacting Galaxies
CY JUL 19-22, 2009
CL E Tennessee State Univ, Johnson City, TN
SP ETSU Off Res & Sponsored Projects, ETSU Friends Astron
HO E Tennessee State Univ
ID EARLY-TYPE GALAXIES; ELLIPTIC GALAXIES; MERGING GALAXIES; ARP 220; GAS;
STARBURSTS
AB Many studies and simulations suggest gas-rich mergers do not contribute significantly to the overall star-formation rate and total mass function of galaxies. The velocity dispersions (sigma) of Luminous & Ultraluminous Infrared Galaxies measured using the 1.62 or 2.29 mu m CO bandheads imply they will form m < m* ellipticals. Yet, sigma's obtained with the Calcium II triplet (CaT) at 0.85 mu m suggest all types of mergers will form m > m* ellipticals. Presented here are recent results, based on high-resolution imaging and multi-wavelength spectroscopy, which demonstrate the dominance of a nuclear disk of Red Supergiants (RSG) or Asymptotic Giant Branch (AGB) stars in the near-infrared bands, where dust obscuration does not sufficiently block their signatures. The presence of these stars severely biases the dynamical mass. At I-band, where dust can sufficiently block RSG or AGB stars, LIRGs populate the Fundamental Plane over a large dynamic range and are virtually indistinguishable from elliptical galaxies.
C1 [Rothberg, B.; Fischer, J.] USN, Res Lab, Remote Sensing Div, Washington, DC 20375 USA.
RP Rothberg, B (reprint author), USN, Res Lab, Remote Sensing Div, Code 7211,4555 Overlook Ave SW, Washington, DC 20375 USA.
NR 20
TC 1
Z9 1
U1 0
U2 0
PU ASTRONOMICAL SOC PACIFIC
PI SAN FRANCISCO
PA 390 ASHTON AVE, SAN FRANCISCO, CA 94112 USA
BN 978-1-58381-726-1
J9 ASTR SOC P
PY 2010
VL 423
BP 351
EP 354
PG 4
WC Astronomy & Astrophysics
SC Astronomy & Astrophysics
GA BSM97
UT WOS:000284979300063
ER
PT J
AU Chen, PE
Cook, C
Stewart, AC
Nagarajan, N
Sommer, DD
Pop, M
Thomason, B
Thomason, MPK
Lentz, S
Nolan, N
Sozhamannan, S
Sulakvelidze, A
Mateczun, A
Du, L
Zwick, ME
Read, TD
AF Chen, Peter E.
Cook, Christopher
Stewart, Andrew C.
Nagarajan, Niranjan
Sommer, Dan D.
Pop, Mihai
Thomason, Brendan
Thomason, Maureen P. Kiley
Lentz, Shannon
Nolan, Nichole
Sozhamannan, Shanmuga
Sulakvelidze, Alexander
Mateczun, Alfred
Du, Lei
Zwick, Michael E.
Read, Timothy D.
TI Genomic characterization of the Yersinia genus
SO GENOME BIOLOGY
LA English
DT Article
ID PATHOGENICITY ISLAND; ENTEROCOLITICA-LIKE; ESCHERICHIA-COLI; SP-NOV;
SALMONELLA-TYPHIMURIUM; BACILLUS-ANTHRACIS; STREPTOCOCCUS-AGALACTIAE;
BACTERIAL PATHOGENS; INSERTION SEQUENCES; RNA GENES
AB Background: New DNA sequencing technologies have enabled detailed comparative genomic analyses of entire genera of bacterial pathogens. Prior to this study, three species of the enterobacterial genus Yersinia that cause invasive human diseases (Yersinia pestis, Yersinia pseudotuberculosis, and Yersinia enterocolitica) had been sequenced. However, there were no genomic data on the Yersinia species with more limited virulence potential, frequently found in soil and water environments.
Results: We used high-throughput sequencing-by-synthesis instruments to obtain 25- to 42-fold average redundancy, whole-genome shotgun data from the type strains of eight species: Y. aldovae, Y. bercovieri, Y. frederiksenii, Y. kristensenii, Y. intermedia, Y. mollaretii, Y. rohdei, and Y. ruckeri. The deepest branching species in the genus, Y. ruckeri, causative agent of red mouth disease in fish, has the smallest genome (3.7 Mb), although it shares the same core set of approximately 2,500 genes as the other members of the species, whose genomes range in size from 4.3 to 4.8 Mb. Yersinia genomes had a similar global partition of protein functions, as measured by the distribution of Cluster of Orthologous Groups families. Genome to genome variation in islands with genes encoding functions such as ureases, hydrogeneases and B-12 cofactor metabolite reactions may reflect adaptations to colonizing specific host habitats.
Conclusions: Rapid high-quality draft sequencing was used successfully to compare pathogenic and nonpathogenic members of the Yersinia genus. This work underscores the importance of the acquisition of horizontally transferred genes in the evolution of Y. pestis and points to virulence determinants that have been gained and lost on multiple occasions in the history of the genus.
C1 [Chen, Peter E.; Cook, Christopher; Stewart, Andrew C.; Thomason, Brendan; Thomason, Maureen P. Kiley; Lentz, Shannon; Nolan, Nichole; Sozhamannan, Shanmuga; Mateczun, Alfred; Zwick, Michael E.; Read, Timothy D.] USN, Biol Def Res Directorate, Med Res Ctr, Silver Spring, MD 20910 USA.
[Nagarajan, Niranjan; Sommer, Dan D.; Pop, Mihai] Univ Maryland, Inst Adv Comp Sci, Ctr Bioinformat & Computat Biol, College Pk, MD 20742 USA.
[Sulakvelidze, Alexander] Univ Florida, Emerging Pathogens Inst, Coll Med, Gainesville, FL 32610 USA.
[Sulakvelidze, Alexander] Univ Florida, Dept Mol Genet & Microbiol, Coll Med, Gainesville, FL 32610 USA.
[Du, Lei] 454 Life Sci Inc, Branford, CT 06405 USA.
[Zwick, Michael E.; Read, Timothy D.] Emory Univ, Sch Med, Dept Human Genet, Atlanta, GA 30322 USA.
[Read, Timothy D.] Emory Univ, Sch Med, Div Infect Dis, Atlanta, GA 30322 USA.
RP Read, TD (reprint author), USN, Biol Def Res Directorate, Med Res Ctr, 503 Robert Grant Ave, Silver Spring, MD 20910 USA.
EM tread@emory.edu
RI Read, Timothy/E-6240-2011; Pop, Mihai/A-7987-2013
OI Pop, Mihai/0000-0001-9617-5304
FU Joint Science and Technology Office for Chemical and Biological Defense
(JSTO-CBD), Defense Threat Reduction Agency Initiative
[TMTI0068_07_NM_T]
FX We would like to thank Ayra Akmal, Kim Bishop-Lilly, Mike Cariaso, Brian
Osborne, Bill Klimke, Tim Welch, Jennifer Tsai, Cheryl Timms Strauss and
members of the 454 Service Center for their help and advice in
completing this manuscript. This work was supported by grant
TMTI0068_07_NM_T from the Joint Science and Technology Office for
Chemical and Biological Defense (JSTO-CBD), Defense Threat Reduction
Agency Initiative to TDR. The views expressed in this article are those
of the authors and do not necessarily reflect the official policy or
position of the US Department of the Navy, US Department of Defense, or
the US Government. Some of the authors are employees of the US
Government, and this work was prepared as part of their official duties.
Title 17 USC 105 provides that 'Copyright protection under this title is
not available for any work of the United States Government.' Title 17
USC 101 defines a US Government work as a work prepared by a military
service member or employee of the US Government as part of that person's
official duties.
NR 106
TC 43
Z9 43
U1 0
U2 15
PU BIOMED CENTRAL LTD
PI LONDON
PA 236 GRAYS INN RD, FLOOR 6, LONDON WC1X 8HL, ENGLAND
SN 1465-6906
EI 1474-760X
J9 GENOME BIOL
JI Genome Biol.
PY 2010
VL 11
IS 1
AR R1
DI 10.1186/gb-2010-11-1-r1
PG 18
WC Biotechnology & Applied Microbiology; Genetics & Heredity
SC Biotechnology & Applied Microbiology; Genetics & Heredity
GA 580FS
UT WOS:000276433600006
PM 20047673
ER
EF