FN Thomson Reuters Web of Science™ VR 1.0 PT J AU Shon, S Mun, S Han, DK Ko, H AF Shon, Suwon Mun, Seongkyu Han, David K. Ko, Hanseok GP IEEE TI Maximum Likelihood Linear Dimension Reduction of Heteroscedastic Feature for Robust Speaker Recognition SO 2015 12TH IEEE INTERNATIONAL CONFERENCE ON ADVANCED VIDEO AND SIGNAL BASED SURVEILLANCE (AVSS) LA English DT Proceedings Paper CT 12th IEEE International Conference on Advanced Video and Signal Based Surveillance (AVSS) CY AUG 25-28, 2015 CL IOSB, Karlsruhe Inst Technol & Fraunhofer, Karlsruhe, GERMANY SP IEEE Signal Proc Soc, IEEE Comp Soc, Fraunhofer Inst Optronics, Syst Technol & Image Exploitation, Karlsruhe Inst Technol HO IOSB, Karlsruhe Inst Technol & Fraunhofer AB This paper analyzes heteroscedasticity in i-vector for robust forensics and surveillance speaker recognition system. Linear DiscriminantA nalysis (LDA), a widely-used linear dimension reduction technique, assumes that classes are homoscedastic within a same covariance. In this paper it is assumed that general speech utterances contain both homoscedastic and heteroscedastic elements. We show the validity of this assumption by employing several analyses and also demonstrate that dimension reduction using principal components is feasible. To effectively handle the presence of heteroscedastic and homoscedastic elements, we propose a fusion approach of applying both LDA and Heteroscedastic-LDA (HLDA). The experiments are conducted to show its effectiveness and compare to other methods using the telephone database of National Institute of Standards and Technology (NIST) Speaker Recognition Evaluation (SRE) 2010 extended. C1 [Shon, Suwon; Mun, Seongkyu; Ko, Hanseok] Korea Univ, Sch Elect Engn, Seoul, South Korea. [Han, David K.] Off Naval Res, Arlington, VA USA. RP Shon, S (reprint author), Korea Univ, Sch Elect Engn, Seoul, South Korea. EM swshon@ispl.korea.ac.kr; skmoon@ispl.korea.ac.kr; ctmkhan@gmail.com; hsko@korea.ac.kr 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 BN 978-1-4673-7632-7 PY 2015 PG 5 WC Imaging Science & Photographic Technology; Transportation Science & Technology SC Imaging Science & Photographic Technology; Transportation GA BF4DF UT WOS:000380619700064 ER PT J AU Ramachandran, VR Mitchell, HJ DeCoster, ME Tzeng, NH Jacobs, SK Rodriguez, BM AF Ramachandran, Vignesh R. Mitchell, Herbert J. DeCoster, Mallory E. Tzeng, Nigel H. Jacobs, Samantha K. Rodriguez, Benjamin M. GP IEEE TI Enhancements to cSAM Spectral Comparison SO 2015 IEEE AEROSPACE CONFERENCE LA English DT Proceedings Paper CT IEEE Aerospace Conference CY MAR 07-14, 2015 CL Big Sky, MT ID ARTIFICIAL NEURAL NETWORKS; KOHONEN AB Growing use of infrared spectral signature data in scientific and forensic analysis requires collecting large quantities of data from a variety of sensors using a variety of techniques in a variety of environmental conditions. While individual collections are internally valid, variations and clutter in observed spectral features make signature classification and comparison both challenging for spectral analysts and often impossible for automated systems. As the quantity of collected data continues to grow rapidly, automated solutions are increasingly critical. For example, the Joint Improvised Explosive Device (IED) Defeat Organization (JIEDDO) Integrated Signatures Program (ISP) has collected approximately one million infrared (IR) spectra and relies on manually produced metadata to identify and classify signatures. The manual production of metadata, at this scale, requires significant and unsustainable cost and schedule investment to reduce errors and inconsistencies. The primary methods used to autonomously identify and classify IR spectral data include spectral angle mapping and key feature detection. Spectral angle mapping cannot compare spectra with differing domains (e.g., due to removed bands). Additionally, spectral mapping is a computationally slow process, running in linear time against an entire reference library to identify a single new signature. Key feature detection improves computation time by pre-calculating feature locations in the reference spectra, but this method is highly susceptible to noise and clutter features. In 2014, we presented a novel approach to signature classification using k-means clustering [1]. We described a method of characteristic spectral angle mapping, "cSAM", and compared its runtime complexity to that of traditional spectral angle mapping. In this paper we expand on the cSAM approach by investigating methods of generating more appropriate characteristic functions that are applicable to a broad cross-section of spectral domains, including Visible, Near Infrared and Short Wave Infrared (VIS/NIR/SWIR), Mid Wave Infrared (MWIR) and Long Wave Infrared (LWIR) wavelengths. We explore characteristic functions based on the physical characteristics within the spectral database, statistical patterns that serve to separate pre-labeled data, as well as discrete classifiers that have no reliance on the content of the dataset. We define a set of evaluation criteria with which to fairly contrast these different types of characteristic functions, and present the results of our evaluation. We further explore the most optimal dimensionality of the spectral score space, balancing spatial precision with runtime. The cSAM methodology has the potential to dramatically improve the accuracy and speed of real-time spectral classification, given the proper selection of characteristic functions. Used in tandem with traditional signature analysis, cSAM provides a first-order filtering of large datasets for common spectral features. Optimizing the use of such large spectral libraries in spectral detection and identification systems and processes is widely applicable in chemical forensics, explosives and trace detection, and first-response scenarios. C1 [Ramachandran, Vignesh R.; DeCoster, Mallory E.; Tzeng, Nigel H.; Jacobs, Samantha K.; Rodriguez, Benjamin M.] Johns Hopkins Appl Phys Lab, Laurel, MD 20723 USA. [Mitchell, Herbert J.] Naval Postgrad Sch, Monterey, CA USA. RP Ramachandran, VR (reprint author), Johns Hopkins Appl Phys Lab, Laurel, MD 20723 USA. EM Vinny.Ramachandran@jhuapl.edu; herbert.mitchell@jieddo.mil; Mallory.DeCoster@jhuapl.edu; Nigel.Tzeng@jhuapl.edu; Samantha.Jacobs@jhuapl.edu; Benjamin.Rodriguez@jhuapl.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 978-1-4799-5380-6 PY 2015 PG 12 WC Engineering, Aerospace SC Engineering GA BF2UN UT WOS:000380501302028 ER PT J AU Tzeng, NH Ramachandran, VR Best, RG Mitchell, HJ Jacobs, SK Rodriguez, BM McCauley, PA AF Tzeng, Nigel H. Ramachandran, Vignesh R. Best, Robert G. Mitchell, Herbert J. Jacobs, Samantha K. Rodriguez, Benjamin M. McCauley, Patrick A. GP IEEE TI Remote Sensing Signatures Database - Challenges and Opportunities SO 2015 IEEE AEROSPACE CONFERENCE LA English DT Proceedings Paper CT IEEE Aerospace Conference CY MAR 07-14, 2015 CL Big Sky, MT AB Growing use of remote sensing in scientific and forensic analysis requires collecting large quantities of signature data from a variety of sensors requiring various techniques as well as careful consideration of environmental conditions. The quantity of collected signature data continues to grow rapidly and the challenge of storing, classifying, searching and exchanging of signatures has significantly increased. For example, the Joint Improvised Explosive Device Defeat Organization (JIEDDO) Integrated Signatures Program (ISP) has collected approximately one million IR, Raman, Mass Spec, RF and other signatures that must be effectively managed. This paper discusses approaches for standardizing metadata across different phenomenology, data interchange formats, unique identification of signatures, signature quality metrics, facilitating third party analysis tools and large signature library management and distribution. Each of these items must be considered when developing a standard for collected signatures. C1 [Tzeng, Nigel H.; Ramachandran, Vignesh R.; Jacobs, Samantha K.; Rodriguez, Benjamin M.; McCauley, Patrick A.] Johns Hopkins Appl Phys Lab, Laurel, MD 20723 USA. [Best, Robert G.; Mitchell, Herbert J.] Naval Postgrad Sch, Monterey, CA USA. RP Tzeng, NH (reprint author), Johns Hopkins Appl Phys Lab, Laurel, MD 20723 USA. EM Nigel.Tzeng@jhuapl.edu; Vinny.Ramachandran@jhuapl.edu; Robert.Best@jieddo.mil; herbert.mitchell@jieddo.mil; Samantha.Jacobs@jhuapl.edu; Benjamin.Rodriguez@jhuapl.edu; Patrick.McCauley@jhuapl.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 978-1-4799-5380-6 PY 2015 PG 8 WC Engineering, Aerospace SC Engineering GA BF2UN UT WOS:000380501302036 ER PT J AU Winternitz, LMB Hassouneh, MA Mitchell, JW Valdez, JE Price, SR Semper, SR Yu, WH Ray, PS Wood, KS Arzoumanian, Z Gendreau, KC AF Winternitz, Luke M. B. Hassouneh, Munther A. Mitchell, Jason W. Valdez, Jennifer E. Price, Samuel R. Semper, Sean R. Yu, Wayne H. Ray, Paul S. Wood, Kent S. Arzoumanian, Zaven Gendreau, Keith C. GP IEEE TI X-ray Pulsar Navigation Algorithms and Testbed for SEXTANT SO 2015 IEEE AEROSPACE CONFERENCE LA English DT Proceedings Paper CT IEEE Aerospace Conference CY MAR 07-14, 2015 CL Big Sky, MT ID TIMING PACKAGE; TEMPO2 AB The Station Explorer for X-ray Timing and Navigation Technology (SEXTANT) is a NASA funded technology-demonstration. SEXTANT will, for the first time, demonstrate real-time, on-board X-ray Pulsar-based Navigation (XNAV), a significant milestone in the quest to establish a GPS-Iike navigation capability available throughout our Solar System and beyond. This paper describes the basic design of the SEXTANT system with a focus on core models and algorithms, and the design and continued development of the GSFC X-ray Navigation Laboratory Testbed (GXLT) with its dynamic pulsar emulation capability. We also present early results from GXLT modeling of the combined NICER X-ray timing instrument hardware and SEXTANT flight software algorithms. C1 [Winternitz, Luke M. B.; Hassouneh, Munther A.; Mitchell, Jason W.; Valdez, Jennifer E.; Price, Samuel R.; Semper, Sean R.; Yu, Wayne H.; Gendreau, Keith C.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA. [Ray, Paul S.; Wood, Kent S.] Naval Res Lab, Washington, DC 20375 USA. [Arzoumanian, Zaven] NASA, GSFC, USRA, Greenbelt, MD 20771 USA. RP Winternitz, LMB (reprint author), NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA. EM luke.b.winternitz@nasa.gov NR 31 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4799-5380-6 PY 2015 PG 14 WC Engineering, Aerospace SC Engineering GA BF2UN UT WOS:000380501300061 ER PT S AU He, ZF Mao, SW Kompella, S Swami, A AF He, Zhifeng Mao, Shiwen Kompella, Sastry Swami, Ananthram GP IEEE TI Minimum Time Length Scheduling under Blockage and Interference in Multi-hop mmWave Networks SO 2015 IEEE GLOBAL COMMUNICATIONS CONFERENCE (GLOBECOM) SE IEEE Global Communications Conference LA English DT Proceedings Paper CT IEEE Global Communications Conference (GLOBECOM) CY DEC 06-10, 2015 CL San Diego, CA SP IEEE, QUALCOMM, Keysight Technologies, Huawei, Natl Instruments, Intel, InterDigital, LG Elect, IEEE Big Data, IEEE Stand Assoc, ViaSat, IEEE Commun Soc ID 60 GHZ AB We study the problem of minimizing the scheduling time length to serve users' traffic demand by link scheduling in multi-hop mmWave wireless networks. We formulate a constrained Binary Integer Programming (BIP) problem incorporating a flexible interference model for directional transmissions and a Markov chain based blockage model. Since the problem is NP hard, we propose a heuristic algorithm with greatly reduced complexity, which first finds the optimal streaming path for each data flow and then maximizes the instant network throughput by optimizing the link scheduling at each time slot. The performance of the heuristic algorithm is validated with simulations. C1 [He, Zhifeng; Mao, Shiwen] Auburn Univ, Dept Elect & Comp Engn, Auburn, AL 36849 USA. [Kompella, Sastry] Naval Res Lab, Div Informat Technol, Washington, DC 20375 USA. [Swami, Ananthram] Army Res Lab, Adelphi, MD 20783 USA. RP He, ZF (reprint author), Auburn Univ, Dept Elect & Comp Engn, Auburn, AL 36849 USA. EM zzh0008@tigermail.auburn.edu; smao@ieee.org; sk@ieee.org; a.swami@ieee.org NR 18 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2334-0983 BN 978-1-4799-5952-5 J9 IEEE GLOB COMM CONF PY 2015 PG 7 WC Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA BF5OL UT WOS:000382389303098 ER PT J AU Pickar, CK AF Pickar, Charles K. GP IEEE TI Beyond Cost, Schedule and Performance: Managing System-of-Systems Programs SO 2015 IEEE INTERNATIONAL SYMPOSIUM ON SYSTEMS ENGINEERING (ISSE) PROCEEDINGS LA English DT Proceedings Paper CT IEEE International Symposium on Systems Engineering (ISSE) Proceedings CY SEP 28-30, 2015 CL ROME, ITALY SP IEEE, IEEE SYSTEM COUNCIL DE project management; program management; system-of-systems program management ID PROJECT-MANAGEMENT AB Project management theory has not advanced beyond that developed in the mid-20th century, even as project management practice struggles with managing complex systems development. Cost, schedule and performance are insufficient management focal points in the challenged world of system-of-systems development. Acknowledging the systems aspect in managing projects, and the problem solving methodologies of systems engineering provides a basis rooted in engineering to address the challenges of the system-of-systems program management. This paper is a survey of systems, management and the cognitive sciences. The intent is to identify system-of-systems management focal points that go beyond the methodism approach to project management prevalent today. C1 [Pickar, Charles K.] Naval Postgrad Sch, Grad Sch Business & Publ Policy, Monterey, CA USA. RP Pickar, CK (reprint author), Naval Postgrad Sch, Grad Sch Business & Publ Policy, Monterey, CA USA. EM ckpickar@nps.edu NR 37 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4799-1919-2 PY 2015 BP 381 EP 386 PG 6 WC Computer Science, Software Engineering SC Computer Science GA BF3NJ UT WOS:000380559200061 ER PT J AU O'Neil, MP Shattuck, LG Sciarini, LW AF O'Neil, Michael P. Shattuck, Lawrence G. Sciarini, Lee W. BE Ahram, T Karwowski, W Schmorrow, D TI A framework for assessing and communicating human systems integration efficacy across the system lifecycle SO 6TH INTERNATIONAL CONFERENCE ON APPLIED HUMAN FACTORS AND ERGONOMICS (AHFE 2015) AND THE AFFILIATED CONFERENCES, AHFE 2015 LA English DT Proceedings Paper CT 6th International Conference on Applied Human Factors and Ergonomics (AHFE) CY JUL 26-30, 2015 CL Las Vegas, NV DE Human Systems Integration; Human factors integration; Human factors engineering; Human factors metrics; Human systems integration metrics; Systems readiness metrics; Human readiness level; Technology Readiness Level; Technology readiness assessment; Usability assessment AB The economic advantages and tactical edge provided by properly configured human-technology interfaces are well documented in modern acquisition. Despite these clear advantages, implementing HSI continues to be impeded by the complexity of human-technology integration issues. We propose that the lack of understanding of HSI and its impacts on system performance are at the core of these challenges. The Comprehensive Human Integration Evaluation Framework (CHIEF) is proposed as a tool for understanding, assessing and communicating HSI's impact on total system performance across the system lifecycle. Using the development and emergence of the NASA/DoD Technology Readiness Level (TRL) scale as a benchmark, recently proposed HSI and human factors (HF) metrics are analyzed to determine attributes for a useful framework. A simplified definition of HSI is offered as a foundation for understanding the HSI process. The CHIEF evaluation scheme, including an HSI performance summary, domain-specific rating scales and a workflow developed jointly by the U.S. Coast Guard Office of Human Systems Integration and the Naval Postgraduate School are then described. Efforts to implement the framework in current USCG acquisition are summarized. (C) 2015 Published by Elsevier B.V. C1 [O'Neil, Michael P.] US Coast Guard Headquarters, HSI Div CG 1B3, Washington, DC 20593 USA. [Shattuck, Lawrence G.; Sciarini, Lee W.] Naval Postgrad Sch, Grad Sch Operat & Informat Sci, Monterey, CA USA. RP O'Neil, MP (reprint author), US Coast Guard Headquarters, HSI Div CG 1B3, Washington, DC 20593 USA. EM michael.p.o'neil@uscg.mil NR 11 TC 0 Z9 0 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS PY 2015 BP 3054 EP 3061 DI 10.1016/j.promfg.2015.07.851 PG 8 WC Behavioral Sciences; Engineering, Multidisciplinary SC Behavioral Sciences; Engineering GA BF6UZ UT WOS:000383740303024 ER PT J AU Aschenbrennar, M Koo, J Toshner, D Tsolis, K Jaye, M AF Aschenbrennar, Mark Koo, Jason Toshner, Daniel Tsolis, Kristen Jaye, Michael BE Ahram, T Karwowski, W Schmorrow, D TI Sociocultural-Geospatial Anthropological Portal (SC-GAP): Enhanced sociocultural understanding through crowdsourced service member narratives SO 6TH INTERNATIONAL CONFERENCE ON APPLIED HUMAN FACTORS AND ERGONOMICS (AHFE 2015) AND THE AFFILIATED CONFERENCES, AHFE 2015 LA English DT Proceedings Paper CT 6th International Conference on Applied Human Factors and Ergonomics (AHFE) CY JUL 26-30, 2015 CL Las Vegas, NV DE Department of Defense; Military; Narratives; Culture; Sociocultural understanding AB Despite the Department of Defense's (DoD) many investments directed toward developing and fielding programs designed to advance sociocultural knowledge, the DoD nonetheless lacks a shared repository in which all entities can aggregate, visualize, and share sociocultural data across the enterprise. A gap analysis of DoD's desired and actual states of achieving and implementing a sociocultural understanding reveals three main shortcomings: a data gap, a repository gap, and a collaboration gap. As a consequence, we created a proof of concept, enterprise solution for DoD that bridges the overall sociocultural gap by harnessing the overlooked and untapped potential of today's deployed DoD service members, who over the course of their daily duties, are exposed to various populations' cultures. Service member observations and interpretations of service members' interactions form an untapped set of operationally relevant sociocultural data. The existing wellspring of sociocultural information needs only be collected and indexed using a framework derived from the Five Operational Culture Dimensions model. Residing on a geodatabase and interfaced via a custom multi-client supported web-based Geographic Information System (GIS), this framework integrates the collected data comprised of service member narratives with the greater Joint Force thereby creating a dynamic and collaborative sociocultural living repository. Combining an anthropologically sound framework that is operationally relevant with the capabilities of GIS results in a solution that will allow DoD personnel to uniformly populate, visualize, and share near real-time cultural data relevant to military operations across all services and agencies. This DoD enterprise solution has the potential to enhance the Nation's armed forces' strategic performance through the application of culturally adept military power Published by Elsevier B.V. C1 [Aschenbrennar, Mark; Koo, Jason; Toshner, Daniel; Tsolis, Kristen; Jaye, Michael] Naval Postgrad Sch, Dept Def Anal, Monterey, CA 93943 USA. RP Jaye, M (reprint author), Naval Postgrad Sch, Dept Def Anal, Monterey, CA 93943 USA. EM mjjaye@nps.edu NR 11 TC 0 Z9 0 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS PY 2015 BP 4144 EP 4151 DI 10.1016/j.promfg.2015.07.533 PG 8 WC Behavioral Sciences; Engineering, Multidisciplinary SC Behavioral Sciences; Engineering GA BF6UZ UT WOS:000383740304037 ER PT J AU Hall, S Blais, C AF Hall, Steven Blais, Curtis BE Ahram, T Karwowski, W Schmorrow, D TI Understanding Sector Dependencies in the Stabilization and Reconstruction of Nation-States SO 6TH INTERNATIONAL CONFERENCE ON APPLIED HUMAN FACTORS AND ERGONOMICS (AHFE 2015) AND THE AFFILIATED CONFERENCES, AHFE 2015 LA English DT Proceedings Paper CT 6th International Conference on Applied Human Factors and Ergonomics (AHFE) CY JUL 26-30, 2015 CL Las Vegas, NV DE Multi-agent; system dynamics; modeling and simulation; panarchy; resiliency; stabilitiy; reconstruction and humanitarian operations AB The United States Army is undergoing a re-definition of its Civil Affairs officer positions. A recent project to define the educational requirements for an Army Civil Affairs Officer (38G) identified an educational requirement to help officers understand the complex ways in which the operations that advance the achievement of one stabilization objective often hinder the achievement of other objectives. The system level thinking was seen to be frequently insufficiently ingrained amongst Civil Affairs Officers (and the leaders they advised), who were both often perceived to be inclined, in the face of the complexities of the situation on the ground, to become too narrowly focused on achieving their specific assigned responsibilities, limiting their ability to see how the mission effectiveness of what they were recommending would be influenced by the state and trajectory of other Sectors and how, in turn, their recommendations would influence the mission effectiveness of other Sector stewards. While system dynamics modeling has proven itself to be effective in capturing and effectively communicating feedback loops that define such non-linear (and non-intuitive) systems they do not, in themselves, provide sufficient modeling richness to comprehensively capture the critical spatial (geographical) determinants of a successful state reconstruction process. For these purposes, a multi-agent cellular automata model is recommended both as a vehicle for introducing students to the complex nature of the state reconstruction process and, eventually, for use in the field by deployed Civilian Affairs Officers at all levels. This paper describes the problem and the modeling approach to address it. Published by Elsevier B.V. C1 [Hall, Steven; Blais, Curtis] Naval Postgrad Sch, 700 Dyer Rd, Monterey, CA 93943 USA. RP Blais, C (reprint author), Naval Postgrad Sch, 700 Dyer Rd, Monterey, CA 93943 USA. EM sbhall@nps.edu NR 5 TC 0 Z9 0 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS PY 2015 BP 6607 EP 6614 DI 10.1016/j.promfg.2015.08.001 PG 8 WC Behavioral Sciences; Engineering, Multidisciplinary SC Behavioral Sciences; Engineering GA BF6UZ UT WOS:000383740306102 ER PT J AU Chatterjee, D Kluskens, MS Rao, SM AF Chatterjee, Deb Kluskens, Michael S. Rao, Sadasiva M. GP IEEE TI Some Investigations Toward Closed-Form Solutions of Sommerfeld Integrals SO 2015 USNC-URSI RADIO SCIENCE MEETING (JOINT WITH AP-S SYMPOSIUM) PROCEEDINGS LA English DT Meeting Abstract CT USNC-URSI Radio Science Meeting (Joint with AP-S Symposium) Proceedings CY JUL 19-19, 2015 CL Vancouver, CANADA SP Inst Elect Elect Engineers, IEEE Antennas Propagat Soc, IEEE, URSI C1 [Chatterjee, Deb] Univ Missouri, CSEE Dept, Kansas City, MO 64110 USA. [Kluskens, Michael S.; Rao, Sadasiva M.] Naval Res Lab, Div Radar, Washington, DC 20375 USA. EM chatd@umkc.edu NR 0 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4799-7817-5 PY 2015 BP 75 EP 75 PG 1 WC Computer Science, Theory & Methods SC Computer Science GA BF3TC UT WOS:000380575300075 ER PT J AU Asvestas, JS AF Asvestas, John S. GP IEEE TI Calculation of the Inner EFIE Integral over a Bilinear Quadrilateral to Machine Precision SO 2015 USNC-URSI RADIO SCIENCE MEETING (JOINT WITH AP-S SYMPOSIUM) PROCEEDINGS LA English DT Meeting Abstract CT USNC-URSI Radio Science Meeting (Joint with AP-S Symposium) Proceedings CY JUL 19-19, 2015 CL Vancouver, CANADA SP Inst Elect Elect Engineers, IEEE Antennas Propagat Soc, IEEE, URSI C1 [Asvestas, John S.] NAVAIR, Radar & Antenna Syst Div, Patuxent River, MD 20670 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4799-7817-5 PY 2015 BP 118 EP 118 PG 1 WC Computer Science, Theory & Methods SC Computer Science GA BF3TC UT WOS:000380575300118 ER PT J AU Hong, SK Mendez, VM Wall, WS AF Hong, Sun K. Mendez, Victor M. Wall, Walter S. GP IEEE TI Generation of Short Microwave Pulses with a Compact Reverberation Cavity using Time-Reversal SO 2015 USNC-URSI RADIO SCIENCE MEETING (JOINT WITH AP-S SYMPOSIUM) PROCEEDINGS LA English DT Meeting Abstract CT USNC-URSI Radio Science Meeting (Joint with AP-S Symposium) Proceedings CY JUL 19-19, 2015 CL Vancouver, CANADA SP Inst Elect Elect Engineers, IEEE Antennas Propagat Soc, IEEE, URSI C1 [Hong, Sun K.; Mendez, Victor M.; Wall, Walter S.] US Naval Res Lab, Washington, DC 20375 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4799-7817-5 PY 2015 BP 235 EP 235 PG 1 WC Computer Science, Theory & Methods SC Computer Science GA BF3TC UT WOS:000380575300235 ER PT J AU Flagg, DD Haack, T Doyle, JD Holt, TR Amerault, CM Geiszler, D Nachamkin, J Tyndall, DP AF Flagg, David D. Haack, Tracy Doyle, James D. Holt, Teddy R. Amerault, Clark M. Geiszler, Daniel Nachamkin, Jason Tyndall, Daniel P. GP IEEE TI The Impact of Assimilation of Unmanned Aerial System Observations on Numerical Weather Prediction Modeling of Modified Refractivity and Electromagnetic Propagation SO 2015 USNC-URSI RADIO SCIENCE MEETING (JOINT WITH AP-S SYMPOSIUM) PROCEEDINGS LA English DT Meeting Abstract CT USNC-URSI Radio Science Meeting (Joint with AP-S Symposium) Proceedings CY JUL 19-19, 2015 CL Vancouver, CANADA SP Inst Elect Elect Engineers, IEEE Antennas Propagat Soc, IEEE, URSI C1 [Flagg, David D.] Univ Corp Atmospheric Res, Visiting Scientist Programs, Boulder, CO USA. [Haack, Tracy; Doyle, James D.; Holt, Teddy R.; Amerault, Clark M.; Nachamkin, Jason; Tyndall, Daniel P.] Naval Res Lab, Marine Meteorol Div, Monterey, CA USA. [Geiszler, Daniel] Sci Applicat Int Corp, Mclean, VA USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4799-7817-5 PY 2015 BP 240 EP 240 PG 1 WC Computer Science, Theory & Methods SC Computer Science GA BF3TC UT WOS:000380575300240 ER PT J AU Frederickson, PA AF Frederickson, Paul A. GP IEEE TI Further Improvements and Validation for the Navy Atmospheric Vertical Surface Layer Model (NAVSLaM) SO 2015 USNC-URSI RADIO SCIENCE MEETING (JOINT WITH AP-S SYMPOSIUM) PROCEEDINGS LA English DT Meeting Abstract CT USNC-URSI Radio Science Meeting (Joint with AP-S Symposium) Proceedings CY JUL 19-19, 2015 CL Vancouver, CANADA SP Inst Elect Elect Engineers, IEEE Antennas Propagat Soc, IEEE, URSI C1 [Frederickson, Paul A.] Naval Postgrad Sch, Dept Meteorol, Monterey, CA USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4799-7817-5 PY 2015 BP 242 EP 242 PG 1 WC Computer Science, Theory & Methods SC Computer Science GA BF3TC UT WOS:000380575300242 ER PT J AU Cherrett, RC Wang, Q AF Cherrett, Robin Corey Wang, Qing GP IEEE TI Characterizing Evaporative Duct Properties and Their Impact on Electromagnetic Propagation SO 2015 USNC-URSI RADIO SCIENCE MEETING (JOINT WITH AP-S SYMPOSIUM) PROCEEDINGS LA English DT Meeting Abstract CT USNC-URSI Radio Science Meeting (Joint with AP-S Symposium) Proceedings CY JUL 19-19, 2015 CL Vancouver, CANADA SP Inst Elect Elect Engineers, IEEE Antennas Propagat Soc, IEEE, URSI C1 [Cherrett, Robin Corey; Wang, Qing] Naval Postgrad Sch, Monterey, CA USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4799-7817-5 PY 2015 BP 243 EP 243 PG 1 WC Computer Science, Theory & Methods SC Computer Science GA BF3TC UT WOS:000380575300243 ER PT J AU Alappattu, DP Wang, Q Kalogiros, J Yamaguchi, R AF Alappattu, Denny P. Wang, Qing Kalogiros, John Yamaguchi, Ryan GP IEEE TI Modeled Evaporation Duct Climatology in a Limited Area Using Multiple Data Sources SO 2015 USNC-URSI RADIO SCIENCE MEETING (JOINT WITH AP-S SYMPOSIUM) PROCEEDINGS LA English DT Meeting Abstract CT USNC-URSI Radio Science Meeting (Joint with AP-S Symposium) Proceedings CY JUL 19-19, 2015 CL Vancouver, CANADA SP Inst Elect Elect Engineers, IEEE Antennas Propagat Soc, IEEE, URSI C1 [Alappattu, Denny P.; Wang, Qing] Naval Postgrad Sch, Dept Meteorol, Monterey, CA USA. Natl Observ Athens, Athens, Greece. Univ Calif Irvine, Dept Mech & Aerosp Engn, Irvine, CA USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4799-7817-5 PY 2015 BP 244 EP 244 PG 1 WC Computer Science, Theory & Methods SC Computer Science GA BF3TC UT WOS:000380575300244 ER PT J AU Ascencio, A Rogers, T Gordon, N Haack, T Horgan, K AF Ascencio, Ana Rogers, Ted Gordon, Neil Haack, Tracy Horgan, Kate GP IEEE TI Refractivity Data Fusion SO 2015 USNC-URSI RADIO SCIENCE MEETING (JOINT WITH AP-S SYMPOSIUM) PROCEEDINGS LA English DT Meeting Abstract CT USNC-URSI Radio Science Meeting (Joint with AP-S Symposium) Proceedings CY JUL 19-19, 2015 CL Vancouver, CANADA SP Inst Elect Elect Engineers, IEEE Antennas Propagat Soc, IEEE, URSI C1 [Ascencio, Ana; Rogers, Ted; Gordon, Neil] SPAWAR Syst Ctr, San Diego, CA 92152 USA. [Haack, Tracy] Naval Res Lab, Monterey, CA 93943 USA. [Horgan, Kate] Naval Surface Warfare Ctr, Dahlgran Div, Dahlgren, VA 22118 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4799-7817-5 PY 2015 BP 247 EP 247 PG 1 WC Computer Science, Theory & Methods SC Computer Science GA BF3TC UT WOS:000380575300247 ER PT J AU Gordon, ND Ascencio, AK Rogers, T Haack, T Zhao, A AF Gordon, Neil D. Ascencio, Ana K. Rogers, Ted Haack, Tracy Zhao, Allen GP IEEE TI Background covariance of atmospheric duct properties based on ensembles SO 2015 USNC-URSI RADIO SCIENCE MEETING (JOINT WITH AP-S SYMPOSIUM) PROCEEDINGS LA English DT Meeting Abstract CT USNC-URSI Radio Science Meeting (Joint with AP-S Symposium) Proceedings CY JUL 19-19, 2015 CL Vancouver, CANADA SP Inst Elect Elect Engineers, IEEE Antennas Propagat Soc, IEEE, URSI C1 [Gordon, Neil D.; Ascencio, Ana K.; Rogers, Ted] Space & Naval Warfare Syst Ctr Pacific, San Diego, CA USA. [Haack, Tracy; Zhao, Allen] Naval Res Lab, Monterey, CA USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4799-7817-5 PY 2015 BP 248 EP 248 PG 1 WC Computer Science, Theory & Methods SC Computer Science GA BF3TC UT WOS:000380575300248 ER PT J AU Zhao, QY Haack, T Rogers, T Gordon, N Will, I AF Zhao, Qingyun Haack, Tracy Rogers, Ted Gordon, Neil Will, Ian GP IEEE TI Ensemble Prediction of Atmospheric Refractivity Conditions for EM Propagation SO 2015 USNC-URSI RADIO SCIENCE MEETING (JOINT WITH AP-S SYMPOSIUM) PROCEEDINGS LA English DT Meeting Abstract CT USNC-URSI Radio Science Meeting (Joint with AP-S Symposium) Proceedings CY JUL 19-19, 2015 CL Vancouver, CANADA SP Inst Elect Elect Engineers, IEEE Antennas Propagat Soc, IEEE, URSI C1 [Zhao, Qingyun; Haack, Tracy] Naval Res Lab, Marina Meteorol Div, Monterey, CA USA. [Rogers, Ted; Gordon, Neil] SPAWAR Syst Ctr, San Diego, CA USA. [Will, Ian] Naval Res Lab, Tact Elect Warfare Div, Washington, DC 20375 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4799-7817-5 PY 2015 BP 249 EP 249 PG 1 WC Computer Science, Theory & Methods SC Computer Science GA BF3TC UT WOS:000380575300249 ER PT J AU Rogers, T Wang, Q Wang, SP AF Rogers, Ted Wang, Qing Wang, Shouping GP IEEE TI Modeling refractivity fluctuations with random functions SO 2015 USNC-URSI RADIO SCIENCE MEETING (JOINT WITH AP-S SYMPOSIUM) PROCEEDINGS LA English DT Meeting Abstract CT USNC-URSI Radio Science Meeting (Joint with AP-S Symposium) Proceedings CY JUL 19-19, 2015 CL Vancouver, CANADA SP Inst Elect Elect Engineers, IEEE Antennas Propagat Soc, IEEE, URSI C1 [Rogers, Ted] SPAWAR Syst Ctr, San Diego, CA 92152 USA. [Wang, Qing] Naval Postgrad Sch, Monterey, CA USA. [Wang, Shouping] Naval Res Lab, Monterey, CA USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4799-7817-5 PY 2015 BP 250 EP 250 PG 1 WC Computer Science, Theory & Methods SC Computer Science GA BF3TC UT WOS:000380575300250 ER PT J AU Wang, Q Burkholder, R Fernando, J Khelif, D Shearman, RK Shen, L AF Wang, Qing Burkholder, Robert Fernando, Joseph Khelif, Djamal Shearman, R. Kipp Shen, Lian GP IEEE TI CASPER - A New Multidisciplinary Research Initiative on Electromagnetic Wave Propagation in the Marine Atmosphere SO 2015 USNC-URSI RADIO SCIENCE MEETING (JOINT WITH AP-S SYMPOSIUM) PROCEEDINGS LA English DT Meeting Abstract CT USNC-URSI Radio Science Meeting (Joint with AP-S Symposium) Proceedings CY JUL 19-19, 2015 CL Vancouver, CANADA SP Inst Elect Elect Engineers, IEEE Antennas Propagat Soc, IEEE, URSI C1 [Wang, Qing] Naval Postgrad Sch, Monterey, CA 93940 USA. [Burkholder, Robert] Ohio State Univ, Columbus, OH 43210 USA. [Fernando, Joseph] Univ Notre Dame, Notre Dame, IN 46556 USA. [Khelif, Djamal] Univ Calif Irvine, Irvine, CA USA. [Shearman, R. Kipp] Oregon State Univ, Corvallis, OR 97331 USA. [Shen, Lian] Univ Minnesota, Minneapolis, MN USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4799-7817-5 PY 2015 BP 252 EP 252 PG 1 WC Computer Science, Theory & Methods SC Computer Science GA BF3TC UT WOS:000380575300252 ER PT J AU McDowell, LK AF McDowell, Luke K. BE Gaussier, E Cao, LB Gallinari, P Kwok, J Pasi, G Zaiane, O TI Relational Active Learning for Link-Based Classification SO PROCEEDINGS OF THE 2015 IEEE INTERNATIONAL CONFERENCE ON DATA SCIENCE AND ADVANCED ANALYTICS (IEEE DSAA 2015) LA English DT Proceedings Paper CT Proceedings of the 2015 IEEE International Conference on Data Science and Advanced Analytics (IEEE DSAA 2015) CY OCT 19-21, 2015 CL IEEE, PARIS, FRANCE SP IEEE Computational Intelligence Soc, IEEE, Infosys, Booz Allen Hamilton, TCS, IEEE Big Data, technicolor, Bai du, Telecom ParisTech, Chaire Machine Learning For Big Data, Omnibond, Google, Prof. Ram Kumar Memorial Fdn, IM, Inria, Lioaning Tech Univ, UPMC, Universite Joseph Fourier, AXA, Grenoble INP, Springer, KDD, ACM Chapter, CCF, IEEE Talk Force on Data Science and Advanced Analytics, KD Nuggets, IDA, CNRS HO IEEE AB Many information tasks involve objects that are explicitly or implicitly connected in a network (or graph), such as webpages connected by hyperlinks or people linked by "friendships" in a social network. Research on link-based classification (LBC) has shown how to leverage these connections to improve classification accuracy. Unfortunately, acquiring a sufficient number of labeled examples to enable accurate learning for LBC can often be expensive or impractical. In response, some recent work has proposed the use of active learning, where the LBC method can intelligently select a limited set of additional labels to acquire, so as to reduce the overall cost of learning a model with sufficient accuracy. This work, however, has produced conflicting results and has not considered recent progress for LBC inference and semi-supervised learning. In this paper, we evaluate multiple prior methods for active learning and demonstrate that none consistently improve upon random guessing. We then introduce two new methods that both seek to improve active learning by leveraging the link structure to identify nodes to acquire that are more representative of the underlying data. We show that both approaches have some merit, but that one method, by proactively acquiring nodes so as to produce a more representative distribution of known labels, often leads to significant accuracy increases with minimal computational cost. C1 [McDowell, Luke K.] US Naval Acad, Annapolis, MD 21402 USA. RP McDowell, LK (reprint author), US Naval Acad, Annapolis, MD 21402 USA. EM lmcdowel@usna.edu NR 26 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4673-8273-1 PY 2015 BP 161 EP 170 PG 10 WC Computer Science, Information Systems; Computer Science, Interdisciplinary Applications SC Computer Science GA BF2HP UT WOS:000380468400018 ER PT B AU Boyd, DA Snider, RM Erickson, JS Roy, JN Strycharz-Glaven, SM Tender, LM AF Boyd, Darryl A. Snider, Rachel M. Erickson, Jeffrey S. Roy, Jared N. Strycharz-Glaven, Sarah M. Tender, Leonard M. BA Beyenal, H Babauta, JT BF Beyenal, H Babauta, JT TI THEORY OF REDOX CONDUCTION AND THE MEASUREMENT OF ELECTRON TRANSPORT RATES THROUGH ELECTROCHEMICALLY ACTIVE BIOFILMS SO BIOFILMS IN BIOELECTROCHEMICAL SYSTEMS: FROM LABORATORY PRACTICE TO DATA INTERPRETATION LA English DT Article; Book Chapter ID GEOBACTER-SULFURREDUCENS BIOFILMS; ANODE-RESPIRING BACTERIA; C-TYPE CYTOCHROMES; STEADY-STATE; MICROBIAL NANOWIRES; CHARGE-TRANSPORT; POLYMER-FILMS; FIXED SITES; DIFFUSION; FE(III) C1 [Boyd, Darryl A.; Snider, Rachel M.] CNR, Washington, DC 20418 USA. [Erickson, Jeffrey S.; Strycharz-Glaven, Sarah M.; Tender, Leonard M.] Naval Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 USA. [Roy, Jared N.] George Mason Univ, Manassas, VA USA. RP Boyd, DA (reprint author), CNR, Washington, DC 20418 USA. NR 64 TC 1 Z9 1 U1 2 U2 2 PU JOHN WILEY & SONS INC PI HOBOKEN PA 111 RIVER ST, HOBOKEN, NJ 07030 USA BN 978-1-119-09738-9; 978-1-118-41349-4 PY 2015 BP 177 EP 209 D2 10.1002/9781119097426 PG 33 WC Biophysics; Biotechnology & Applied Microbiology; Electrochemistry SC Biophysics; Biotechnology & Applied Microbiology; Electrochemistry GA BF7FA UT WOS:000383999100007 ER PT B AU Wisher, RA Brusso, RC Curnow, CK Hatfield, J Paddock, A Spain, RD AF Wisher, Robert A. Brusso, Robert C. Curnow, Christina K. Hatfield, Josh Paddock, Arthur Spain, Randall D. BE Khan, BH Ally, M TI Formulating Best Practices and Guidelines for Emerging E-learning Technologies SO INTERNATIONAL HANDBOOK OF E-LEARNING, VOL 1: THEORETICAL PERSPECTIVES AND RESEARCH SE Routledge International Handbooks LA English DT Article; Book Chapter C1 [Wisher, Robert A.] Naval Postgrad Sch, Monterey, CA USA. [Wisher, Robert A.] Adv Distributed Learning Initiat Pentagon, Arlington, VA USA. [Brusso, Robert C.; Curnow, Christina K.] ICF Int, Fairfax, VA USA. [Curnow, Christina K.; Hatfield, Josh; Paddock, Arthur] ICF Int, Ctr Workforce Res & Performance, Fairfax, VA USA. [Spain, Randall D.] US Army Res Inst ARI, Natick, MA USA. RP Wisher, RA (reprint author), Adv Distributed Learning Initiat Pentagon, Arlington, VA USA. NR 12 TC 0 Z9 0 U1 0 U2 0 PU ROUTLEDGE PI ABINGDON PA 2 PARK SQ, MILTON PARK, ABINGDON OX14 4RN, OXFORD, ENGLAND BN 978-1-315-76093-3; 978-1-138-79368-2 J9 ROUT INT HANDB PY 2015 BP 127 EP 137 PG 11 WC Education & Educational Research SC Education & Educational Research GA BF6SD UT WOS:000383667600010 ER PT J AU Graves, I Procter, A Harrison, WL Allwein, G AF Graves, Ian Procter, Adam Harrison, William L. Allwein, Gerard GP IEEE TI Provably Correct Development of Reconfigurable Hardware Designs via Equational Reasoning SO 2015 INTERNATIONAL CONFERENCE ON FIELD PROGRAMMABLE TECHNOLOGY (FPT) LA English DT Proceedings Paper CT International Conference on Field Programmable Technology (FTP) CY DEC 07-09, 2015 CL Queenstown, NEW ZEALAND SP IEEE New Zealand Cent Sect, IEEE New Zealand N Sect, IEEE New Zealand S Sect, Altera, Xilinx AB There is a semantic gap between the hardware definition languages used to design and implement hardware and the languages and logics used to formally specify and verify them. Bridging this gap-i.e., constructing formal models from existing hardware artifacts-can be costly, time-consuming, and error prone-and yet utterly necessary if formal verification is to proceed. This work demonstrates that this gap can be collapsed by starting in a pure functional language that is also a hardware description language, and that equational style verifications may be performed directly on the source text of a hardware design, thereby significantly lowering the verification cost for reconfigurable designs. When combined with an efficient compiler, this methodology achieves both good performance and low cost verification. C1 [Graves, Ian; Procter, Adam; Harrison, William L.] Univ Missouri, Dept Comp Sci, Columbia, MO 65211 USA. [Allwein, Gerard] US Naval Res Lab, Washington, DC USA. RP Graves, I (reprint author), Univ Missouri, Dept Comp Sci, Columbia, MO 65211 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 BN 978-1-4673-9091-0 PY 2015 BP 160 EP 167 PG 8 WC Computer Science, Software Engineering SC Computer Science GA BF6WN UT WOS:000383741900021 ER PT B AU Choi, W Park, S Han, DK Ko, H AF Choi, Woohyun Park, Sangwook Han, David K. Ko, Hanseok GP ISCA-INT SPEECH COMMUN ASSOC TI Acoustic Event Recognition Using Dominant Spectral Basis Vectors SO 16TH ANNUAL CONFERENCE OF THE INTERNATIONAL SPEECH COMMUNICATION ASSOCIATION (INTERSPEECH 2015), VOLS 1-5 LA English DT Proceedings Paper CT 16th Annual Conference of the International-Speech-Communication-Association (INTERSPEECH 2015) CY SEP 06-10, 2015 CL Dresden, GERMANY SP NISCAN, TU Berlin, TUBS Sci Mkt, EZ Alibaba Grp, Telekon Innovat Lab, Google, Amazon Echo, Facebook, Microsoft, Citrix, Datamall, NXP Software, E Sigma, ELRA, European Media Lab GmbH, EML, Nuance, Linguwerk, Speech Ocean DE acoustic event recognition; robust feature extraction; spectral envelope; dominant spectral basis vector; non-negative matrix factorization; K-SVD; dictionary learning ID NONNEGATIVE MATRIX FACTORIZATION; FEATURE-EXTRACTION; CLASSIFICATION AB This paper proposes a novel filter bank composed of dominant Spectral Basis Vectors (SBVs) in a spectrogram. Spectral envelopes represented by the SBVs have shown to be excellent characteristic features for discriminating different acoustic events in noisy environment. Non-negative Matrix Factorization (NMF) and non-negative K-SVD (NKSVD) for part-based and holistic representations extract dominant SBVs from a spectrogram. The effectiveness of the proposed method is demonstrated on a database of real life recordings via experiments, and its robust performance is compared to conventional methods. C1 [Choi, Woohyun; Park, Sangwook; Ko, Hanseok] Korea Univ, Sch Elect Engn, Seoul, South Korea. [Han, David K.] Off Naval Res, Arlington, VA 22217 USA. RP Choi, W (reprint author), Korea Univ, Sch Elect Engn, Seoul, South Korea. EM whchoi@ispl.korea.ac.kr; swpark@ispl.korea.ac.kr; ctmkhan@gmail.com; hsko@korea.ac.kr NR 20 TC 0 Z9 0 U1 0 U2 0 PU ISCA-INT SPEECH COMMUNICATION ASSOC PI BAIXAS PA C/O EMMANUELLE FOXONET, 4 RUE DES FAUVETTES, LIEU DIT LOUS TOURILS, BAIXAS, F-66390, FRANCE BN 978-1-5108-1790-6 PY 2015 BP 2002 EP 2006 PG 5 WC Acoustics; Computer Science, Interdisciplinary Applications SC Acoustics; Computer Science GA BF3TT UT WOS:000380581600419 ER PT B AU Tanner, JA Daugherty, RH Smith, HC AF Tanner, John A. Daugherty, Robert H. Smith, Henry C. BA Schmidt, RK BF Schmidt, RK TI Mechanical Properties of Radial-Ply Aircraft Tires SO ADVANCES IN AIRCRAFT BRAKES AND TIRES LA English DT Article; Book Chapter AB Tire mechanical property data from several radial-ply aircraft tires have been analyzed and compared to empirical bias-ply tire property models developed by the National Aeronautics and Space Administration (NASA) in the late 1950's. Radial tire data from high-speed testing on the NASA Aircraft Landing Dynamics Facility and low-speed radial-ply tire data obtained from qualification testing by various tire manufacturers are compared to the empirical bias-ply models. Data from the NASA tests and the tire manufacturer qualification tests show similar trends. Measured tire mechanical properties computed from both radial-ply data sets are in disagreement with the predicted tire material properties computed from the NASA bias-ply models. C1 [Tanner, John A.] Boeing Co, Chicago, IL 60606 USA. [Daugherty, Robert H.] US Navy, Washington, DC USA. [Smith, Henry C.] Univ Idaho, Moscow, ID 83843 USA. RP Tanner, JA (reprint author), Boeing Co, Chicago, IL 60606 USA. NR 4 TC 0 Z9 0 U1 1 U2 1 PU SAE INTERNATIONAL PI WARRENDALE PA 400 COMMONWEALTH DRIVE, WARRENDALE, PA 15096 USA BN 978-0-7680-8249-4; 978-0-7680-8236-4 PY 2015 BP 5 EP 18 D2 10.4271/pt-171 PG 14 WC Engineering, Aerospace; Engineering, Mechanical SC Engineering GA BF5OA UT WOS:000382330600002 ER PT S AU Fairbanks, KD AF Fairbanks, Kevin D. BE Ahamed, SI Chang, CK Chu, W Crnkovic, I Hsiung, PA Huang, G Yang, J TI A Technique for Measuring Data Persistence using the Ext4 File System Journal SO IEEE 39TH ANNUAL COMPUTER SOFTWARE AND APPLICATIONS CONFERENCE WORKSHOPS (COMPSAC 2015), VOL 3 SE Proceedings International Computer Software and Applications Conference LA English DT Proceedings Paper CT 39th IEEE Annual International Computer Software and Applications Conference Workshops (COMPSAC) CY JUL 01-05, 2015 CL Taichung, TAIWAN SP IEEE, IEEE Comp Soc, IEEE Big Data, IEEE Cloud Comp, IPS, Korean Inst Informat Scientists & Engineers, CCF, Natl Cent Univ, Natl Chung cheng Univ, Natl Chung Hsing Univ, Feng Chia Univ, Natl Ilan Univ, Iowa State Univ Sci & Technol, Marquette Univ, Natl Tsing hua univ, Natl Taichung Univ Sci & Technol, Tunghai Univ, Minist Ssci & Technol, Minist Econ Affairs, R O C, Minist Educ, Unison Healthcare Grp, Inventec, Academia Sinica, Natl Appl Res Labs DE Ext4; File System Forensics; Digital Forensics; Journal; Data Persistence; Data Recovery; Persistence Measurement ID FORENSICS AB In this paper, we propose a method of measuring data persistence using the Ext4 journal. Digital Forensic tools and techniques are commonly used to extract data from media. A great deal of research has been dedicated to the recovery of deleted data; however, there is a lack of information on quantifying the chance that an investigator will be successful in this endeavor. To that end, we suggest the file system journal be used as a source to gather empirical evidence of data persistence, which can later be used to formulate the probability of recovering deleted data under various conditions. Knowing this probability can help investigators decide where to best invest their resources. We have implemented a proof of concept system that interrogates the Ext4 file system journal and logs relevant data. We then detail how this information can be used to track the reuse of data blocks from the examination of file system metadata structures. This preliminary design contributes a novel method of tracking deleted data persistence that can be used to generate the information necessary to formulate probability models regarding the full and/or partial recovery of deleted data. C1 [Fairbanks, Kevin D.] US Naval Acad, Elect & Comp Engn Dept, Annapolis, MD 21402 USA. RP Fairbanks, KD (reprint author), US Naval Acad, Elect & Comp Engn Dept, Annapolis, MD 21402 USA. NR 11 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 0730-3157 BN 978-1-4673-6563-5 J9 P INT COMP SOFTW APP PY 2015 BP 18 EP 23 DI 10.1109/COMPSAC.2015.164 PG 6 WC Computer Science, Software Engineering; Engineering, Electrical & Electronic SC Computer Science; Engineering GA BF4RB UT WOS:000381598900004 ER PT J AU Yee, S Weinstein, D Fiering, J White, D Duwel, A AF Yee, Steven Weinstein, Dana Fiering, Jason White, Doug Duwel, Amy GP IEEE TI A Miniature Reconfigurable Circularly Polarized Antenna Using Liquid Microswitches SO 2015 IEEE 16TH ANNUAL WIRELESS AND MICROWAVE TECHNOLOGY CONFERENCE (WAMICON) LA English DT Proceedings Paper CT IEEE 16th Annual Wireless and Microwave Technology Conference (WAMICON 2015) CY APR 13-15, 2015 CL Cocoa Beach, FL DE Patch antennas; reconfigurable antenna; microswitches; electrowetting-on-dielectric ID METAL AB A frequency and polarization reconfigurable antenna based on electrowetting liquid metal microswitches is presented. The microswitches consist of electrostatically actuated mercury droplets that selectively connect solid metal traces. This mechanism is designed into a single-feed patch antenna configurable between two communication bands and the GPS band with different circular polarizations. The antenna topology is based on a corner truncated square patch with switched sets of extensions to achieve resonant frequency and axial ratio control. Measurements of manually reconfigured prototypes demonstrate frequency and polarization configurability. C1 [Yee, Steven] US Navy, Washington, DC 20350 USA. [Weinstein, Dana] MIT, Cambridge, MA 02139 USA. [Fiering, Jason; White, Doug; Duwel, Amy] Charles Stark Draper Lab, Cambridge, MA USA. RP Yee, S (reprint author), US Navy, Washington, DC 20350 USA. EM steven.c.yee@navy.mil; dana@mtl.mit.edu; aduwel@draper.com 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 BN 978-1-4799-7521-1 PY 2015 PG 5 WC Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA BF3QF UT WOS:000380567600022 ER PT J AU Levush, B Vlasov, A Chernyavskiy, I Cooke, S Pasour, J Stantchev, G Nguyen, K Wright, E Chernin, D Petillo, J Antonsen, T AF Levush, Baruch Vlasov, Alexander Chernyavskiy, Igor Cooke, Simon Pasour, John Stantchev, George Khanh Nguyen Wright, Edward Chernin, David Petillo, John Antonsen, Thomas GP IEEE TI Modeling and Simulation of Millimeter Wave Vacuum Electronic Devices at The Naval Research Laboratory SO 2015 IEEE INTERNATIONAL CONFERENCE ON MICROWAVES, COMMUNICATIONS, ANTENNAS AND ELECTRONIC SYSTEMS (COMCAS) LA English DT Proceedings Paper CT IEEE International Conference on Microwaves, Communications, Antennas and Electronic Systems (COMCAS) CY NOV 02-04, 2015 CL Tel Aviv, ISRAEL DE Millimeter waves; vacuum electronic devices ID AMPLIFIER; BEAM AB Recent advances in the development of millimeter wave vacuum electronic devices have been made possible by powerful, specialized design tools. We summarize them here and point out areas where improved models and codes will be needed. C1 [Levush, Baruch; Vlasov, Alexander; Chernyavskiy, Igor; Cooke, Simon; Pasour, John; Stantchev, George] Naval Res Lab, Washington, DC 20375 USA. [Khanh Nguyen; Wright, Edward] Beam Wave Res, Bethesda, MD 20814 USA. [Chernin, David; Petillo, John; Antonsen, Thomas] Leidos Corp, Reston, VA 20190 USA. RP Levush, B (reprint author), Naval Res Lab, Washington, DC 20375 USA. NR 11 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4799-7473-3 PY 2015 PG 4 WC Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA BF3ZC UT WOS:000380608100143 ER PT S AU Walker, PA AF Walker, Paul A. BE Maybaum, M Osula, AM Lindstrom, L TI Law of the Horse to Law of the Submarine: The Future of State Behavior in Cyberspace SO 2015 7TH INTERNATIONAL CONFERENCE ON CYBER CONFLICT - ARCHITECTURES IN CYBERSPACE (CYCON) SE International Conference on Cyber Conflict LA English DT Proceedings Paper CT 7th International Conference on Cyber Conflict - Architectures in Cyberspace (CyCon) CY MAY 26-28, 2015 CL Tallinn, ESTONIA SP IEEE adv technology humanity, microsoft, cisco DE international law; countermeasures; cyber activity; State action AB States are rapidly approaching an international law crossroads in cyberspace. While many States, led by the United States, take the view that existing international law, including the law of armed conflict, is sufficient to cover cyberspace ("law of the horse"), such a view is being overtaken by reality. The Sony hack allegedly by North Korea is only the latest, and most blatant, in the long history of State activity in cyberspace. The current architecture of cyberspace makes it very attractive for States to pursue their national interests via this domain in a manner that is easily denied. With such a state of affairs persisting into the foreseeable future, it is very likely that international law will soon be sidelined or ignored by States as they seek to respond to cyber activity undertaken by other States ("law of the submarine"). With most, if not all, State-sponsored cyber activity not rising to the level of a use of force, countermeasures are one of the most viable international law tools for States to respond to State-sponsored cyber activity. Countermeasures, however, is the international law concept most at risk of being ignored by States. The customary international law of countermeasures imposes many conditions and limitations on their use, conditions and limitations that States will be inclined to ignore because they can under cyberspace's current architecture. Fortunately, the customary international law of countermeasures remains fluid enough that it can be sufficiently adapted to accommodate State behavior in cyberspace while still accounting for the international law interests underlying countermeasures. C1 [Walker, Paul A.] US Navy, Judge Advocate Generals Corps, Washington, DC USA. RP Walker, PA (reprint author), US Navy, Judge Advocate Generals Corps, Washington, DC USA. EM Paul.walker@1987.usna.com NR 35 TC 1 Z9 1 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2325-5366 BN 978-9-9499-5443-8 J9 INT CONF CYBER CONFL PY 2015 BP 93 EP 104 PG 12 WC Computer Science, Theory & Methods; Engineering, Electrical & Electronic SC Computer Science; Engineering GA BF3EC UT WOS:000380531500008 ER PT S AU Young, BW Green, JM AF Young, Bonnie W. Green, John M. GP IEEE TI Achieving a Decision Paradigm for Distributed Warfare Resource Management SO 2015 9TH ANNUAL IEEE INTERNATIONAL SYSTEMS CONFERENCE (SYSCON) SE Annual IEEE Systems Conference LA English DT Proceedings Paper CT 9th Annual IEEE International Systems Conference (SysCon) CY APR 13-16, 2015 CL Vancouver, CANADA SP IEEE, IEEE Syst Council DE Distributed warfare resources; collaborative systems-of-systems; decision paradigm; resource management; operational effectiveness; measures of effectiveness; decision confidence AB The ability to optimally manage distributed warfare assets for collaborative operation significantly increases our military advantage. The primary results include enhanced situational awareness and improvements in fire control, engagement support, operational planning, combat reaction times, threat prioritization, and the list continues. Bettering the use of sensors and weapons in concert with one another-effectively creating a system of distributed systems-provides major payoffs. The effectiveness of managing distributed resources depends on the ability to make complex decisions. The complexity is due in part to the circuitous nature of fusing data from multiple sensor sources to provide a representation of the operational environment from which to redirect sensors for further information optimization and from which to base military operations. The "goodness" of such complex decisions depends on the "goodness" of the information available and the understanding of the situation from a " big picture" perspective. This paper explores distributed resource management from a decision-based perspective. With an objective of enabling a collaborative system of systems ( SoS), a systems approach is proposed to implement a decision paradigm that extends from system conception to operations. C1 [Young, Bonnie W.; Green, John M.] Naval Postgrad Sch, Dept Syst Engn, Monterey, CA USA. RP Young, BW (reprint author), Naval Postgrad Sch, Dept Syst Engn, Monterey, CA USA. EM bwyoung@nps.edu; jmgreen@nps.edu NR 12 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 1944-7620 BN 978-1-4799-5927-3 J9 ANN IEEE SYST CONF PY 2015 BP 269 EP 276 PG 8 WC Engineering, Multidisciplinary SC Engineering GA BF3FS UT WOS:000380537800043 ER PT S AU Hernandez, R Kane, J Zhang, F Zhang, XR Huang, H AF Hernandez, Robert Kane, Jason Zhang, Fan Zhang, Xiaorong Huang, He GP IEEE TI Towards Ubiquitous Mobile-Computing-Based Artificial Leg Control SO 2015 9TH ANNUAL IEEE INTERNATIONAL SYSTEMS CONFERENCE (SYSCON) SE Annual IEEE Systems Conference LA English DT Proceedings Paper CT 9th Annual IEEE International Systems Conference (SysCon) CY APR 13-16, 2015 CL Vancouver, CANADA SP IEEE, IEEE Syst Council DE neural machine interface; leg control; support vector machines; mobile CPU ID PROSTHESIS; DESIGN AB This paper presents a rapid prototype approach for the development of a real-time capable neural-machine-interface (NMI) for control of artificial legs based on mobile processor technology (Intel Atom (TM) Z530 Processor.) By effectively exploiting the architectural features of a mobile embedded CPU, we implemented a decision-making algorithm, based on neuromuscular-mechanical fusion and gait phase-dependent support vector machines (SVM) classification to meet the demanding performance constraints. To demonstrate the feasibility of a real-time mobile computing based NMI, real-time experiments were performed on an able bodied subject with window increments of 50ms. The experiments showed that the mobile computing based NMI provided fast and accurate classifications of four major human locomotion tasks (level-ground walking, stair ascent, stair descent, and standing) and a 46X speedup over an equivalent MATLAB implementation. The testing yielded accuracies of 96.31% with low power consumption. An offline analysis showed the accuracy could be increased to 98.87% with minor modifications to the application. C1 [Hernandez, Robert] Naval Undersea Warfare Ctr, Newport, RI 02842 USA. [Kane, Jason; Zhang, Fan; Zhang, Xiaorong; Huang, He] Univ Rhode Isl, Dept Elect Comp & Biomed Engn, Kingston, RI 02881 USA. RP Hernandez, R (reprint author), Naval Undersea Warfare Ctr, Newport, RI 02842 USA. EM robert.hernandez2@navy.mil; jkane@ele.uri.edu; fzhang@ele.uri.edu; zxiaorong@ele.uri.edu; huang@ele.uri.edu NR 22 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 1944-7620 BN 978-1-4799-5927-3 J9 ANN IEEE SYST CONF PY 2015 BP 821 EP 827 PG 7 WC Engineering, Multidisciplinary SC Engineering GA BF3FS UT WOS:000380537800125 ER PT J AU Yuan, X Tian, F Hou, YT Lou, WJ Sherali, HD Kompella, S Reed, JH AF Yuan, Xu Tian, Feng Hou, Y. Thomas Lou, Wenjing Sherali, Hanif D. Kompella, Sastry Reed, Jeffrey H. GP IEEE TI Optimal Throughput Curve for Primary and Secondary Users with Node-level Cooperation SO 2015 IEEE INTERNATIONAL SYMPOSIUM ON DYNAMIC SPECTRUM ACCESS NETWORKS (DYSPAN) LA English DT Proceedings Paper CT IEEE International Symposium on Dynamic Spectrum Access Networks (DySPAN) CY SEP 29-OCT 02, 2015 CL Stockholm, SWEDEN ID COGNITIVE RADIO NETWORKS; ANTENNAS AB A new trend in cooperation is to allow the primary and secondary networks to cooperate on the node level for data forwarding, which we call the UPS paradigm. This paper offers an in-depth study of the UPS paradigm in terms of its optimal throughput curve - the maximum achievable throughput for both primary and secondary users. We formulate the problem into a multicriteria optimization problem with the goal of maximizing the throughput of both primary and secondary users. Through a novel approach based on weighted Chebyshev norm, we transform the multicriteria optimization problem into a single criteria optimization problem and find a sequence of Pareto-optimal points iteratively. Based on the Pareto-optimal points, we find the throughput curve and show that it is e-approximation to the optimal. Through a case study, we show that the throughput region (the area under the throughput curve) under a UPS paradigm is substantially larger than that under the interweave paradigm. C1 [Yuan, Xu; Tian, Feng; Hou, Y. Thomas; Lou, Wenjing; Sherali, Hanif D.; Reed, Jeffrey H.] Virginia Polytech Inst & State Univ, Blacksburg, VA 24061 USA. [Kompella, Sastry] US Naval Res Lab, Washington, DC USA. RP Yuan, X (reprint author), Virginia Polytech Inst & State Univ, Blacksburg, VA 24061 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 BN 978-1-4799-7452-8 PY 2015 BP 358 EP 364 PG 7 WC Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA BF3HS UT WOS:000380544200051 ER PT J AU Mokole, E Sarkar, TK AF Mokole, Eric Sarkar, Tapan K. GP IEEE TI Broadband Theory/Technology/Systems and Radar-Communication Interaction SO 2015 IEEE RADIO AND ANTENNA DAYS OF THE INDIAN OCEAN (RADIO) LA English DT Proceedings Paper CT IEEE Radio and Antenna Days of the Indian Ocean (RADIO) CY SEP 21-24, 2015 CL Belle Mare, MAURITIUS SP IEEE APS, CST, URSI, Radio Soc C1 [Mokole, Eric] Naval Res Lab, Washington, DC 20375 USA. [Sarkar, Tapan K.] Syracuse Univ, Syracuse, NY 13244 USA. 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 978-9-9903-7339-4 PY 2015 PG 2 WC Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA BF1FQ UT WOS:000380391800060 ER PT J AU Capello, E Park, H Tavora, B Guglieri, G Romano, M AF Capello, Elisa Park, Hyeongjun Tavora, Bruno Guglieri, Giorgio Romano, Marcello GP IEEE TI Modeling and Experimental Parameter Identification of a Multicopter via a Compound Pendulum Test Rig SO 2015 WORKSHOP ON RESEARCH, EDUCATION AND DEVELOPMENT OF UNMANNED AERIAL SYSTEMS (RED-UAS) LA English DT Proceedings Paper CT 2015 Workshop Res Ed dev unmanned aerial systems RED-US CY NOV 23-25, 2015 CL cancun, MEXICO AB In this paper, a method to identify parameters of a multicopter is proposed via a compound pendulum test rig and data from an optical position tracking system. Moments of inertia and thrust parameters of a hexacopter are evaluated. In addition, a specific method is introduced to identify the torque by a propeller using a floating test bed. Then, nonlinear dynamic model is derived based on the obtained parameters. To verify the identification method, simulation results using the nonlinear model are compared with experimental results from flight tests. C1 [Capello, Elisa; Guglieri, Giorgio] Politecn Torino, Dept Mech & Aerosp Engn, I-10129 Turin, Italy. [Park, Hyeongjun; Tavora, Bruno; Romano, Marcello] Naval Postgrad Sch, Mech & Aerosp Engn Dept, Monterey, CA 93943 USA. RP Capello, E (reprint author), Politecn Torino, Dept Mech & Aerosp Engn, I-10129 Turin, Italy. EM elisa.capello@polito.it; hpark1@nps.edu; bgrugelf@nps.edu; giorgio.guglieri@polito.it; mromano@nps.edu NR 18 TC 1 Z9 1 U1 2 U2 2 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-5090-1784-3 PY 2015 BP 308 EP 317 PG 10 WC Engineering, Aerospace SC Engineering GA BF2NU UT WOS:000380483900038 ER PT S AU Josset, D Hou, W Pelon, J Hu, Y Tanelli, S Ferrare, R Burton, S Pascal, N AF Josset, D. Hou, W. Pelon, J. Hu, Y. Tanelli, S. Ferrare, R. Burton, S. Pascal, N. CA ICARE Team BE Hou, WW Arnone, RA TI Ocean and Polarization observations from active remote sensing: Atmospheric and Ocean science applications SO OCEAN SENSING AND MONITORING VII SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Ocean Sensing and Monitoring VII CY APR 21-22, 2015 CL Baltimore, MD SP SPIE DE Lidar; Remote Sensing; Ocean; Aerosols; Clouds ID AEROSOL OPTICAL DEPTH; WATER CLOUDS; LIDAR RATIO; RETRIEVAL; DEPOLARIZATION; BACKSCATTER; PRODUCTS; CALIOP AB In the past few years, we have demonstrated how the surface return measured by the active instruments onboard CloudSat and CALIPSO could be used to retrieve the optical depth and backscatter phase function (lidar ratio) of aerosols and ice clouds. This methodology lead to the development of a data fusion product publicly available at the ICARE archive center using the Synergized Optical Depth of Aerosols and Ice Clouds (SODA & ICE) algorithm(1). This algorithm, also allowing to derive ocean surface wind speed, has been extended to include dense cloud surface return to analyze aerosol and cloud properties above such clouds. This low level data fusion of CALIPSO and CloudSat ocean surface echoes has been used by several researchers to explore different research paths. Among them, we can cite: A new characterization of the lidar ratio of cirrus clouds(2) The analysis of the precipitable water and development of a new Millimeter-Wave Propagation Model for the W-Band observations (EMPIRIMA(3)) The analysis of the lidar ratio of sea-spray aerosols(4), and of Aerosol multilayer lidar ratio and extinction(5) A contribution to the retrieval of the subsurface particulate backscatter coefficients of phytoplankton particles(6) In this paper, we present the main features of SODA & ICE, summarizing some of the results obtained. C1 [Josset, D.; Hou, W.] Naval Res Lab, Stennis Space Ctr, MS 39529 USA. [Pelon, J.] LATMOS IPSL, Paris, France. [Hu, Y.; Ferrare, R.; Burton, S.] NASA Langley Res Ctr, Atmospher Composit Branch, Hampton, VA 23681 USA. [Tanelli, S.] CALTECH, Jet Prop Lab, Pasadena, CA 91125 USA. [Pascal, N.] ICARE Univ Lille 1, Lille, France. RP Josset, D (reprint author), Naval Res Lab, Stennis Space Ctr, MS 39529 USA. RI Hu, Yongxiang/K-4426-2012 NR 30 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 978-1-62841-575-9 J9 PROC SPIE PY 2015 VL 9459 AR UNSP 94590N DI 10.1117/12.2181544 PG 14 WC Remote Sensing; Optics SC Remote Sensing; Optics GA BD0SJ UT WOS:000357647400014 ER PT S AU Alley, D Cochenour, B Mullen, L AF Alley, Derek Cochenour, Brandon Mullen, Linda GP IEEE TI Multistatic optical imaging system compatible with AUV platforms SO OCEANS 2015 - MTS/IEEE WASHINGTON SE OCEANS-IEEE LA English DT Proceedings Paper CT OCEANS MTS/IEEE Conference CY OCT 19-22, 2015 CL Washington, DC SP MTS, IEEE DE underwater; optical; imaging; communications; AUV; autonomous AB Conventional optical imaging systems have limited performance in Degraded Visual Environments (DVE) such as dust, fog, sand, and turbid water due to multiple scattering of the light on the path from the source to the target. Their large platform size also makes them unfavorable for compact, autonomous systems. In recent years, researchers at NAVAIR in Patuxent River, MD have developed a compact submersible laser imaging system based on a multistatic system architecture, allowing the source and multiple receivers to reside on separate, smaller, independent platforms. The system geometry can be better optimized for the environment, allowing it to obtain high quality imagery through much higher attenuation lengths (between the target and receiver) when compared to conventional imaging systems. The smaller source also lends itself to integration into an autonomous underwater vehicle (AUV). A compact, multistatic imaging system designed for integration into a REMUS 600 AUV has been developed and is currently being tested in a laboratory environment. System design and laboratory test plans will be presented. C1 [Alley, Derek; Cochenour, Brandon; Mullen, Linda] Naval Air Syst Command, Patuxent River, MD 20670 USA. RP Alley, D (reprint author), Naval Air Syst Command, Patuxent River, MD 20670 USA. EM derek.m.alley@navy.mil 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 0197-7385 BN 978-0-933957-43-5 J9 OCEANS-IEEE PY 2015 PG 4 WC Engineering, Marine; Engineering, Electrical & Electronic; Oceanography SC Engineering; Oceanography GA BF3JW UT WOS:000380550000103 ER PT S AU Baus, TA AF Baus, Theresa A. GP IEEE TI Expediting Cost-Effective Solutions Through Government Technology Transfer and Commercialization SO OCEANS 2015 - MTS/IEEE WASHINGTON SE OCEANS-IEEE LA English DT Proceedings Paper CT OCEANS MTS/IEEE Conference CY OCT 19-22, 2015 CL Washington, DC SP MTS, IEEE DE technology transfer; commercialization; economic development; economic impact AB The U.S. and other nations fund basic and applied research at government owned facilities to develop technologies that satisfy security, economic, social and other national needs. Multiple mechanisms exist for private sector firms and academia to work with government laboratories to transition investments to commercial products. However, the number of companies aware of and taking advantage of these opportunities to leverage these avenues remains relatively small. In addition, recently proposed U.S. legislation will expand the authority to create public-private partnerships at Department of Defense laboratories within their core competencies. This paper will explore the value of partnering with nationally funded entities and the return on investment for both the public and private sectors. C1 [Baus, Theresa A.] Naval Undersea Warfare Ctr, Technol Partnerships Off, Div Newport, Newport, RI 02841 USA. RP Baus, TA (reprint author), Naval Undersea Warfare Ctr, Technol Partnerships Off, Div Newport, Newport, RI 02841 USA. EM theresa.baus@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 SN 0197-7385 BN 978-0-933957-43-5 J9 OCEANS-IEEE PY 2015 PG 5 WC Engineering, Marine; Engineering, Electrical & Electronic; Oceanography SC Engineering; Oceanography GA BF3JW UT WOS:000380550000395 ER PT S AU Baylog, JG Wettergren, TA AF Baylog, John G. Wettergren, Thomas A. GP IEEE TI A search game for optimizing information collection in UUV mission planning SO OCEANS 2015 - MTS/IEEE WASHINGTON SE OCEANS-IEEE LA English DT Proceedings Paper CT OCEANS MTS/IEEE Conference CY OCT 19-22, 2015 CL Washington, DC SP MTS, IEEE ID MATHEMATICAL-THEORY; COMMUNICATION AB This paper addresses search planning to find hidden objects in undersea environments where the sensor detection process is subject to false alarms with a geographically varying likelihood. We develop a game-theoretic approach for maximizing the information flow that occurs as a multi-agent collaborative search is conducted over a bounded region. To accomplish this, we apply 1) a search channel formalism to the discrete search paradigm to formulate information measures as a function of searcher regional visitation and 2) a Receiver Operator Characteristic (ROC) analysis to map search strategies to ROC operating points which, in turn, define the properties of the search channel. This enables us to formulate a search game where the cost is driven by expended search effort and the payout is in terms of the information collected. We describe a new algorithmic capability for solving the search allocation problem of multiple unmanned undersea vehicles that can collaborate in their efforts to resolve false alarm outcomes. We discuss the properties of the information measure developed for a repeated look over the search channel and examine the impact of setting ROC operating points to their game equilibrium values. Doing so enables the regional visitation to be determined via a greedy scheduling solution. Results are presented to show the dominance of this approach over alternative ROC strategies and to demonstrate the capability to take advantage of known non-homogeneity in the search environment. C1 [Baylog, John G.; Wettergren, Thomas A.] Naval Undersea Warfare Ctr, 1176 Howell St, Newport, RI 02841 USA. RP Baylog, JG (reprint author), Naval Undersea Warfare Ctr, 1176 Howell St, Newport, RI 02841 USA. EM john.baylog@navy.mil; t.a.wettergren@ieee.org 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 0197-7385 BN 978-0-933957-43-5 J9 OCEANS-IEEE PY 2015 PG 8 WC Engineering, Marine; Engineering, Electrical & Electronic; Oceanography SC Engineering; Oceanography GA BF3JW UT WOS:000380550000345 ER PT S AU Bernotas, M Nelson, C AF Bernotas, Marius Nelson, Charles GP IEEE TI Probability Density Function Analysis for Optimization of Underwater Optical Communications Systems SO OCEANS 2015 - MTS/IEEE WASHINGTON SE OCEANS-IEEE LA English DT Proceedings Paper CT OCEANS MTS/IEEE Conference CY OCT 19-22, 2015 CL Washington, DC SP MTS, IEEE DE Probability Density Function; underwater; optical communications; beam propagation AB Underwater optical systems have real potential in the domain of wireless underwater communications. However, beam propagation through water is not well understood. While success has been achieved modeling the underwater channel using Monte Carlo methods, underwater beam propagation has, to our knowledge, yet to be fit to a true probabilistic model. This paper investigates the utility of the Lognormal, Weibull, and exponentiated Weibull probability density functions in modeling the underwater channel, using parameters developed for the free space domain. Beam propagation is tested under various salinity, temperature and turbidity conditions, and compared with brackish water from the Severn River. C1 [Bernotas, Marius] US Naval Acad, US Navy, Annapolis, MD 21402 USA. [Nelson, Charles] US Naval Acad, Dept Elect & Comp Engn, Annapolis, MD 21402 USA. RP Bernotas, M (reprint author), US Naval Acad, US Navy, 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 0197-7385 BN 978-0-933957-43-5 J9 OCEANS-IEEE PY 2015 PG 8 WC Engineering, Marine; Engineering, Electrical & Electronic; Oceanography SC Engineering; Oceanography GA BF3JW UT WOS:000380550000277 ER PT S AU Calvo, DC Nicholas, M Fialkowski, JM Gauss, RC Olson, DR Lyons, AP AF Calvo, David C. Nicholas, Michael Fialkowski, Joseph M. Gauss, Roger C. Olson, Derek R. Lyons, Anthony P. GP IEEE TI Scale-model Scattering Experiments using 3D Printed Representations of Ocean Bottom Features SO OCEANS 2015 - MTS/IEEE WASHINGTON SE OCEANS-IEEE LA English DT Proceedings Paper CT OCEANS MTS/IEEE Conference CY OCT 19-22, 2015 CL Washington, DC SP MTS, IEEE ID PENETRABLE WEDGE; PROPAGATION AB This study examines tank measurements of acoustic backscatter from different scale-model representations of ocean bottom features. The emphasis is on comparing backscatter from a periodic, rippled surface made from machinable blue wax vs. identical surface geometries made using a 3D printer. The dominant features of the echoes obtained over 85 deg of monostatic angles are found to be similar for sufficiently thick prints beyond approximately 25 deg incidence angles. Acoustic backscatter is also presented for a 3D printed representation of an underwater rock outcrop surveyed in Larvik, Norway using an interferometric SAS system. C1 [Calvo, David C.; Nicholas, Michael; Fialkowski, Joseph M.; Gauss, Roger C.] Naval Res Lab, Acoust Div, Code 7160, Washington, DC 20375 USA. [Olson, Derek R.] Penn State Univ, Appl Res Lab, State Coll, PA 16804 USA. [Lyons, Anthony P.] Univ New Hampshire, Ctr Coastal & Ocean Mapping, Durham, NH 03824 USA. RP Calvo, DC (reprint author), Naval Res Lab, Acoust Div, Code 7160, Washington, DC 20375 USA. NR 25 TC 0 Z9 0 U1 2 U2 2 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 0197-7385 BN 978-0-933957-43-5 J9 OCEANS-IEEE PY 2015 PG 7 WC Engineering, Marine; Engineering, Electrical & Electronic; Oceanography SC Engineering; Oceanography GA BF3JW UT WOS:000380550000214 ER PT S AU Calvo, DC Thangawng, AL Nicholas, M Layman, CN AF Calvo, David C. Thangawng, Abel L. Nicholas, Michael Layman, Christopher N. GP IEEE TI Thin Fresnel Zone Plate Lenses for Underwater Acoustics: Modeling and Experiments SO OCEANS 2015 - MTS/IEEE WASHINGTON SE OCEANS-IEEE LA English DT Proceedings Paper CT OCEANS MTS/IEEE Conference CY OCT 19-22, 2015 CL Washington, DC SP MTS, IEEE AB In situations where size, weight, and system complexity are important, Fresnel zone plate (FZP) lenses have potential advantages in acoustic systems. Numerical modeling and laboratory characterization of focusing by a Soret type FZP lens are presented in this study. Both rubber foam and resonant air cavity designs are considered for the opaque zones. This study extends previous work by examining a wider range of incident field angles. Measurements of a higher-order focus, more narrow than the primary focus but with reduced gain, are also presented that compare favorably with modeling predictions. Comparison is also made between standard diffraction theory predictions (Fourier acoustics) and finite-element, oblique wave scattering simulations for the axisymmetric FZP geometry. The latter accounts for edge effects and acoustic penetration through the lens material, and predicts a higher focal gain for oblique plane wave insonification. Finally, the directivity of an FZP lens and hydrophone combination is compared with that of an ideal pressure sensitive disk of equivalent diameter to assess gain vs. side-lobe tradeoffs. Calculations demonstrate 10 dB reduction of the first sidelobe level using the FZP with a 15% main lobe broadening. C1 [Calvo, David C.; Thangawng, Abel L.; Nicholas, Michael; Layman, Christopher N.] Naval Res Lab, Acoust Div, Code 7165, Washington, DC 20375 USA. RP Calvo, DC (reprint author), Naval Res Lab, Acoust Div, Code 7165, Washington, DC 20375 USA. 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 0197-7385 BN 978-0-933957-43-5 J9 OCEANS-IEEE PY 2015 PG 6 WC Engineering, Marine; Engineering, Electrical & Electronic; Oceanography SC Engineering; Oceanography GA BF3JW UT WOS:000380550000144 ER PT S AU Falls, J Mouring, SE Sridharan, A Loomis, J AF Falls, Jaye Mouring, Sarah E. Sridharan, Ananth Loomis, Jean GP IEEE TI Measured and Predicted Response of a Submerged Towed Sonar Array to Maneuvering Input SO OCEANS 2015 - MTS/IEEE WASHINGTON SE OCEANS-IEEE LA English DT Proceedings Paper CT OCEANS MTS/IEEE Conference CY OCT 19-22, 2015 CL Washington, DC SP MTS, IEEE ID STABILITY AB There exists a necessity to increase a helicopter pilot's safety during mine countermeasure operations. Models have been developed for scenarios involving a cable that is fully submerged in either air or water, but there has been very little testing when the cable is partially submerged. This change in fluid type along the length of the cable has a significant impact on the stability and drag forces that has not yet been extensively studied. A series of experimental investigations examining speed, acceleration, length of cable and path of motion were paired with predictions from a simulation for the purpose of developing a predictive tool. These tests characterized the stability of the body, indicating that acceleration is a governing factor in the operability of the towed sonar. The simulation developed to predict the behavior of the helicopter towed submerged body predicts the fundamental behavior of the body, but does not capture hydrodynamic instabilities that result in the body leaving the water. C1 [Falls, Jaye; Mouring, Sarah E.] US Naval Acad, Annapolis, MD 21402 USA. [Sridharan, Ananth] Univ Maryland, College Pk, MD 20742 USA. [Loomis, Jean] US Navy, Annapolis, MD USA. RP Falls, J (reprint author), US Naval Acad, Annapolis, MD 21402 USA. 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 0197-7385 BN 978-0-933957-43-5 J9 OCEANS-IEEE PY 2015 PG 9 WC Engineering, Marine; Engineering, Electrical & Electronic; Oceanography SC Engineering; Oceanography GA BF3JW UT WOS:000380550000033 ER PT S AU Fialkowski, JM Gauss, RC AF Fialkowski, Joseph M. Gauss, Roger C. GP IEEE TI A Physical Statistical Sonar Clutter Model for Spatially-Dispersed Scatterers SO OCEANS 2015 - MTS/IEEE WASHINGTON SE OCEANS-IEEE LA English DT Proceedings Paper CT OCEANS MTS/IEEE Conference CY OCT 19-22, 2015 CL Washington, DC SP MTS, IEEE DE active sonar; clutter model; scattering; spatial distribution; physics-based; echo classification ID ENVELOPE STATISTICS; REVERBERATION AB The limiting influence of clutter on active sonar performance has long been recognized, with echoes from complex bathymetry, fish schools, and anthropogenic objects such as wrecks, capable of producing false target detections that can both mask real targets and overload the sonar operator with false alarms. To help reduce the impact of these false target objects, statistical distribution models have been employed to both optimize detection threshold settings and improve echo classification. While many such distribution models exist, very few have a physical basis allowing extrapolation to different environments and sonar systems. This paper describes a new 3-parameter statistical model that provides a physical context for relating the characteristics of matched-filter echo-envelope distributions to scatterer attributes. It extends our 2-parameter Poisson-Rayleigh (P-R) model [1]-[2] by adding a quantitative measure of scatterer spatial uniformity (dispersion) to the P-R model's measures of discrete scatterer density and relative strength. The resulting Conway-Maxwell-Poisson-Rayleigh (CMP-R) model's potential for isolating and characterizing clutter was quantified via shallow-water experimental data containing returns from biologic, geologic and anthropogenic objects with differing spatial separations and scattering characteristics. Analysis results demonstrate the flexibility of the CMP-R model in characterizing differing types of clutter as well as target-like objects in 2 distinct environments. Combined with a demonstrated insensitivity to echo signal-to-noise ratio (SNR), the CMP-R distribution model shows promise with regard to both its general applicability for clutter characterization and the development of robust, physics-based active classification algorithms. C1 [Fialkowski, Joseph M.; Gauss, Roger C.] Naval Res Lab, Acoust Div, Code 7164, Washington, DC 20375 USA. RP Fialkowski, JM (reprint author), Naval Res Lab, Acoust Div, Code 7164, Washington, DC 20375 USA. NR 11 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 0197-7385 BN 978-0-933957-43-5 J9 OCEANS-IEEE PY 2015 PG 5 WC Engineering, Marine; Engineering, Electrical & Electronic; Oceanography SC Engineering; Oceanography GA BF3JW UT WOS:000380550000167 ER PT S AU Freeman, SE Emokpae, LE Edelmann, GF AF Freeman, Simon E. Emokpae, Lloyd E. Edelmann, Geoffrey F. GP IEEE TI High-frequency, highly directional short-range underwater acoustic communications SO OCEANS 2015 - MTS/IEEE WASHINGTON SE OCEANS-IEEE LA English DT Proceedings Paper CT OCEANS MTS/IEEE Conference CY OCT 19-22, 2015 CL Washington, DC SP MTS, IEEE DE Underwater communication; directional communication; transducer design; beamforming; de-minimus acoustic communication AB The underwater acoustic channel is a challenging environment for achieving high data rate communications due to multipath, attenuation, noise and propagation delay. Performing and maintaining adaptive channel equalization requires significant computational overhead, leading to costly and power-hungry devices. Here we describe a high-frequency acoustic modem design intended to mitigate the equalization requirement through highly directional, high frequency transmissions centered at 750 kHz. The high frequency additionally confers a data rate of up to 125 kbps between modems spaced on the order of meters apart. The modems are designed to record ambient noise before re-transmitting the recorded data in an encoded manner using high frequency transmissions through a separate, directional transducer. Such modems could be used to facilitate a cable-less benthic hydrophone array made from on-the-fly replaceable nodes. In order to determine inter-element spacing and to perform beamforming on the recorded data between modems, a synchronized yet independent Symmetricom (R) chip-scale atomic clock (CSAC, model SA.45s) was incorporated into a custom signal conditioning and timing board inside each modem. Lab-based experimental results show the feasibility of high-frequency acoustic communication (ACOMMS) between these modems. C1 [Freeman, Simon E.] Amer Soc Engn Educ, 1818 N St NW,Suite 600, Washington, DC 20036 USA. [Emokpae, Lloyd E.; Edelmann, Geoffrey F.] Naval Res Lab, Acoust Signal Proc & Syst Branch, Washington, DC 20375 USA. RP Freeman, SE (reprint author), Amer Soc Engn Educ, 1818 N St NW,Suite 600, Washington, DC 20036 USA. EM Simon.freeman.ctr@nrl.navy.mil NR 8 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 0197-7385 BN 978-0-933957-43-5 J9 OCEANS-IEEE PY 2015 PG 4 WC Engineering, Marine; Engineering, Electrical & Electronic; Oceanography SC Engineering; Oceanography GA BF3JW UT WOS:000380550000096 ER PT S AU Fulton, J Luznik, L Flack, K Lust, E AF Fulton, Jeremiah Luznik, Luksa Flack, Karen Lust, Ethan GP IEEE TI Effects of waves on BEM theory in a marine tidal turbine environment SO OCEANS 2015 - MTS/IEEE WASHINGTON SE OCEANS-IEEE LA English DT Proceedings Paper CT OCEANS MTS/IEEE Conference CY OCT 19-22, 2015 CL Washington, DC SP MTS, IEEE DE marine current turbine; BEM theory; waves AB Blade Element Momentum (BEM) theory is a well understood and proven method for modeling blade loads and determining steady state performance characteristics of wind turbines. Recently this theory has successfully been applied to horizontal axis marine current turbines when incorporating modifications that lead to better predictions of turbine performance for a range of operating conditions. Relatively little work exists in the implementation of BEM theory in a marine environment with surface gravity waves. A better understanding of the effects of waves on tidal turbines is necessary to predict fatigue loading that can eventually lead to blade failure. This paper presents a BEM numerical model that incorporates the unsteady velocities due to the presence of waves and assesses the effects of waves on tidal turbine performance. Numerical results of the coefficient of power (C-P) and coefficient of thrust (C-T) match closely with experimental results for the mean C-p and C-T for a range of tip speed ratios. The model is also able to predict the instantaneous amplitudes of the performance characteristics as compared with the measured values except for the BEM calculated thrust which shows a 20% reduction in amplitude. C1 [Fulton, Jeremiah; Luznik, Luksa; Flack, Karen; Lust, Ethan] US Naval Acad, Dept Mech Engn, Annapolis, MD 21402 USA. RP Fulton, J (reprint author), US Naval Acad, Dept Mech Engn, Annapolis, MD 21402 USA. EM luznik@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 0197-7385 BN 978-0-933957-43-5 J9 OCEANS-IEEE PY 2015 PG 5 WC Engineering, Marine; Engineering, Electrical & Electronic; Oceanography SC Engineering; Oceanography GA BF3JW UT WOS:000380550000088 ER PT S AU Gauss, RC Fialkowski, JM Calvo, DC Menis, R Olson, DR Lyons, AP AF Gauss, Roger C. Fialkowski, Joseph M. Calvo, David C. Menis, Richard Olson, Derek R. Lyons, Anthony P. GP IEEE TI Moment-Based Method to Statistically Categorize Rock Outcrops Based on their Topographical Features SO OCEANS 2015 - MTS/IEEE WASHINGTON SE OCEANS-IEEE LA English DT Proceedings Paper CT OCEANS MTS/IEEE Conference CY OCT 19-22, 2015 CL Washington, DC SP MTS, IEEE DE seafloor features; outcrop; bathymetric facets; topography; PDF; non-Rayleigh; Poisson-Rayleigh; sonar clutter ID BACKSCATTER AB Geomorphological formations on the ocean seafloor are spatially complex objects. Rock outcrops in particular can be spatially compact, and highly anisotropic in their large-and small-scale topographic structure, and represent a significant source of clutter for short-range active sonars operating in shallow water. This paper describes a physical moment-based statistical method for categorizing rock outcrops based on their topographical characteristics, in particular isolating its facet-like features. The correspondence of these features to clutter-generating objects is then substantiated for a short-range, high-frequency shallow-water scenario, where the ensonified area is a fraction of outcrop size, via comparisons with high-fidelity acoustic backscattering predictions. C1 [Gauss, Roger C.; Fialkowski, Joseph M.; Calvo, David C.; Menis, Richard] Naval Res Lab, Acoust Div, Code 7160, Washington, DC 20375 USA. [Olson, Derek R.] Penn State Univ, Appl Res Lab, State Coll, PA 16804 USA. [Lyons, Anthony P.] Univ New Hampshire, Ctr Coastal & Ocean Mapping, Durham, NH 03824 USA. RP Gauss, RC (reprint author), Naval Res Lab, Acoust Div, Code 7160, Washington, DC 20375 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 0197-7385 BN 978-0-933957-43-5 J9 OCEANS-IEEE PY 2015 PG 5 WC Engineering, Marine; Engineering, Electrical & Electronic; Oceanography SC Engineering; Oceanography GA BF3JW UT WOS:000380550000043 ER PT S AU Geder, JD Ramamurti, R Pruessner, M AF Geder, Jason D. Ramamurti, Ravi Pruessner, Marius GP IEEE TI Thrust Magnitude and Efficiency Studies for Multiple Robotic Flapping Fins SO OCEANS 2015 - MTS/IEEE WASHINGTON SE OCEANS-IEEE LA English DT Proceedings Paper CT OCEANS MTS/IEEE Conference CY OCT 19-22, 2015 CL Washington, DC SP MTS, IEEE DE bio-inspired robotics; pectoral fin; underwater propulsion; propulsive efficiency; Strouhal number ID PECTORAL FIN; LOCOMOTION; FORCES; DESIGN AB The development of multiple generations of robotic flapping pectoral fins has warranted a closer study of the relative thrusts and efficiencies exhibited by these fins. This paper describes the differences between the various fins - including stroke frequency, stroke amplitude, aspect ratio, and effective angle of attack - and investigates the effects these differences have on thrust generation and propulsive efficiency. Drawing from and building on previous fin results, both computational fluid dynamics (CFD) simulation results and experimental data are used to evaluate the thrust, power draw, and efficiency, and to find useful relationships between these values and parameters such as Strouhal number and advance ratio. This analysis has implication for future fin design and development of reduced order models for flapping propulsion mechanisms. C1 [Geder, Jason D.; Ramamurti, Ravi] Naval Res Lab, Labs Computat Phys & Fluid Dynam, Washington, DC 20375 USA. [Pruessner, Marius] Naval Res Lab, Ctr Biomol Sci & Engn, Washington, DC 20375 USA. RP Geder, JD (reprint author), Naval Res Lab, Labs Computat Phys & Fluid Dynam, Washington, DC 20375 USA. NR 19 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 0197-7385 BN 978-0-933957-43-5 J9 OCEANS-IEEE PY 2015 PG 7 WC Engineering, Marine; Engineering, Electrical & Electronic; Oceanography SC Engineering; Oceanography GA BF3JW UT WOS:000380550000434 ER PT S AU Gish, LA AF Gish, L. A. GP IEEE TI Designing Implodable Underwater Systems to Minimize Implosion Pulse Severity SO OCEANS 2015 - MTS/IEEE WASHINGTON SE OCEANS-IEEE LA English DT Proceedings Paper CT OCEANS MTS/IEEE Conference CY OCT 19-22, 2015 CL Washington, DC SP MTS, IEEE DE Implosion; Underwater vehicles; Cylindrical shell; Fluid-structure interaction; Pressure pulse; Sympathetic implosion ID SHELLS AB Underwater implosion is the rapid and catastrophic collapse of a pressure vessel subjected to external pressure, resulting in a very short but high-pressure pulse in the surrounding water that can potentially damage adjacent structures or personnel. Any system with an internal pressure below external pressure is susceptible to implosion. The pressure pulse from a single implosion has been known to trigger subsequent sympathetic implosions. This work investigates methods of reducing the implosion pulse severity for unstiffened metallic cylindrical pressure vessels. The implosion pulse energy is proportional to the maximum system kinetic energy developed during collapse. It can be reduced by (1) increasing the plastic energy dissipated by the collapsing structure, or (2) increasing the energy required to compress the internal gas. Plastic energy dissipation is increased by triggering higher buckling modes through introduction of geometric imperfections. Numerical simulations show that this technique can reduce implosion pulse energy for a sample cylinder by up to 33%, while reducing the buckling strength of the cylinder by only 0.5%. The energy required for gas compression can be increased by initially pressurizing the interior of the implodable. The benefit from this technique is bounded by other limitations on internal pressure, such as equipment and human survivability. A slight increase in gas compression energy is also realized by substituting a noble gas for air. These techniques can be applied, singly or in combination, to any implodable design to significantly reduce the pulse severity and minimize the risk of sympathetic implosions. C1 [Gish, L. A.] US Naval Acad, Dept Naval Architecture & Ocean Engn, Annapolis, MD 21402 USA. RP Gish, LA (reprint author), US Naval Acad, Dept Naval Architecture & Ocean Engn, Annapolis, MD 21402 USA. EM gish@usna.edu 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 0197-7385 BN 978-0-933957-43-5 J9 OCEANS-IEEE PY 2015 PG 7 WC Engineering, Marine; Engineering, Electrical & Electronic; Oceanography SC Engineering; Oceanography GA BF3JW UT WOS:000380550000330 ER PT S AU Hong, XD Reynolds, CA Doyle, MMDNRL May, P AF Hong, Xiaodong Reynolds, Carolyn A. Doyle, James D. May, Paul GP IEEE TI The Relationship between Upper-Ocean Variability and the Madden-Julian Oscillation in Extended-Range Simulations SO OCEANS 2015 - MTS/IEEE WASHINGTON SE OCEANS-IEEE LA English DT Proceedings Paper CT OCEANS MTS/IEEE Conference CY OCT 19-22, 2015 CL Washington, DC SP MTS, IEEE DE coupled air-ocean extended-range simulations; the Madden-Julian Oscillation (MJO); Air-ocean interaction; upper ocean variability ID PREDICTION SYSTEM COAMPS; PACIFIC; DYNAMO; WIND AB The relationship between upper-ocean variability and the Madden-Julian Oscillation in extended-range simulations is examined using the Navy's non-hydrostatic COAMPS regional modeling system in a two-way coupled mode for the Dynamics of the Madden Julian Oscillation field experiment period (DYNAMO) during November to December 2011. Results show the simulation better captures the initiation, propagation and characteristics of the MJOs when the model horizontal resolution is increased from 45 km to 27 km. Variation of SST in time is in phase with surface heat flux, in which SST warms (cools) during the suppressed (active) phase through strong downward (upward) heat flux. Barrier layers that exist during the suppressed phase and erod during the active phase are consistent between the observation and the 27-km run. The extended-range simulations simulate the propagation of oceanic downwelling equatorial Rossby waves, which provide favorable conditions for convective activity for initiation of the MJO. The model simulations are also able to capture the diurnal warming during the suppressed phase. C1 [Hong, Xiaodong; Reynolds, Carolyn A.; Doyle, James D.] Naval Res Lab, Marine Meteorol Div, Monterey, CA 93943 USA. [May, Paul] Comp Sci Corp, Monterey, CA 93943 USA. RP Hong, XD (reprint author), Naval Res Lab, Marine Meteorol Div, Monterey, CA 93943 USA. NR 12 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 0197-7385 BN 978-0-933957-43-5 J9 OCEANS-IEEE PY 2015 PG 5 WC Engineering, Marine; Engineering, Electrical & Electronic; Oceanography SC Engineering; Oceanography GA BF3JW UT WOS:000380550000063 ER PT S AU Lanzagorta, M Uhlmann, J Venegas-Andraca, SE AF Lanzagorta, Marco Uhlmann, Jeffrey Venegas-Andraca, Salvador E. GP IEEE TI Quantum Sensing in the Maritime Environment SO OCEANS 2015 - MTS/IEEE WASHINGTON SE OCEANS-IEEE LA English DT Proceedings Paper CT OCEANS MTS/IEEE Conference CY OCT 19-22, 2015 CL Washington, DC SP MTS, IEEE ID MAGNETIC COMPASS AB Quantum sensors exploit quantum phenomena to achieve performance advantages over their classical counterparts. Some examples of quantum sensing devices that we will briefly describe in this paper include quantum photo-detectors, radar, lidar, magnetometers, and gravimeters. We will highlight their novel features and discuss their potential applications to problems related to naval operations in the maritime environment. C1 [Lanzagorta, Marco] US Naval Res Lab, Washington, DC 20375 USA. [Uhlmann, Jeffrey] Univ Missouri, Columbia, MO 65211 USA. [Venegas-Andraca, Salvador E.] Tecnol Monterrey ECI, Monterrey 52926, Edo Mexico, Mexico. RP Lanzagorta, M (reprint author), US Naval Res Lab, Washington, DC 20375 USA. EM marco.lanzagorta@nrl.navy.mil; uhlmannj@missouri.edu; salvador.venegas-andraca@keble.oxon.org NR 45 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 0197-7385 BN 978-0-933957-43-5 J9 OCEANS-IEEE PY 2015 PG 9 WC Engineering, Marine; Engineering, Electrical & Electronic; Oceanography SC Engineering; Oceanography GA BF3JW UT WOS:000380550000170 ER PT S AU Lee, R Mullen, L Pal, P Illig, D AF Lee, Robert Mullen, Linda Pal, Piya Illig, David GP IEEE TI Time of Flight Measurements for Optically Illuminated Underwater Targets Using Compressive Sampling and Sparse Reconstruction SO OCEANS 2015 - MTS/IEEE WASHINGTON SE OCEANS-IEEE LA English DT Proceedings Paper CT OCEANS MTS/IEEE Conference CY OCT 19-22, 2015 CL Washington, DC SP MTS, IEEE DE FMCW Lidar; Compressive Sampling; Sparse Reconstruction; Frequency Chirp AB Compressive Sampling and Sparse reconstruction theory is applied to a linearly frequency modulated continuous wave hybrid lidar/radar system. The goal is to show that high resolution time of flight measurements to underwater targets can be obtained utilizing far fewer samples than dictated by Nyquist sampling theorems. Traditional mixing/down-conversion and matched filter signal processing methods are reviewed and compared to the Compressive Sampling and Sparse Reconstruction methods. Simulated evidence is provided to show the possible sampling rate reductions, and experiments are used to observe the effects that turbid underwater environments have on recovery. Results show that by using compressive sensing theory and sparse reconstruction, it is possible to achieve significant sample rate reduction while maintaining centimeter range resolution. C1 [Lee, Robert; Mullen, Linda] Naval Air Syst Command, Patuxent River, MD 20670 USA. [Lee, Robert; Pal, Piya] Univ Maryland, Dept Elect Engn, College Pk, MD 20742 USA. [Illig, David] Clarkson Univ, Dept Elect Engn, Potsdam, NY USA. RP Lee, R (reprint author), Naval Air Syst Command, Patuxent River, MD 20670 USA. EM robert.lee9@navy.mil 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 0197-7385 BN 978-0-933957-43-5 J9 OCEANS-IEEE PY 2015 PG 6 WC Engineering, Marine; Engineering, Electrical & Electronic; Oceanography SC Engineering; Oceanography GA BF3JW UT WOS:000380550000232 ER PT S AU Lust, E Luznik, L Flack, K Barros, J AF Lust, Ethan Luznik, Luksa Flack, Karen Barros, Julio GP IEEE TI Near Wake Flow Field Measurements of a Marine Current Turbine: Preliminary Results SO OCEANS 2015 - MTS/IEEE WASHINGTON SE OCEANS-IEEE LA English DT Proceedings Paper CT OCEANS MTS/IEEE Conference CY OCT 19-22, 2015 CL Washington, DC SP MTS, IEEE DE marine current turbine; flow field; wake survey; towing tank; PIV AB More advanced simulation tools are required to predict the loads experienced by a turbine in situ due to the surrounding environment including the effects of inflow turbulence, the impact of turbines operating upstream, the effect of the free surface, and the impact of surface waves, to name a few. These advanced models require detailed data sets for validation. At this time, few studies have focused on the near wake in an effort to provide such detailed data. It is critical to understand this region because it is where much of the high-energy phenomena occur that is most likely to impact turbine performance and reliability. To this end, a towing-tank particle image velocimetry (PIV) system was designed, built, and used to provide measurements of the flow in the near wake of a scale-independent marine current turbine. Included are preliminary results including a representative case and turbulent statistics for an ensemble of realizations. C1 [Lust, Ethan; Luznik, Luksa; Flack, Karen; Barros, Julio] US Naval Acad, Dept Mech Engn, Annapolis, MD 21402 USA. RP Lust, E (reprint author), US Naval Acad, Dept Mech Engn, Annapolis, MD 21402 USA. EM lust@usna.edu 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 SN 0197-7385 BN 978-0-933957-43-5 J9 OCEANS-IEEE PY 2015 PG 6 WC Engineering, Marine; Engineering, Electrical & Electronic; Oceanography SC Engineering; Oceanography GA BF3JW UT WOS:000380550000072 ER PT S AU McKay, JD Raj, RG Monga, V Isaacs, J AF McKay, John D. Raj, Raghu G. Monga, Vishal Isaacs, Jason GP IEEE TI Discriminative Sparsity for Sonar ATR SO OCEANS 2015 - MTS/IEEE WASHINGTON SE OCEANS-IEEE LA English DT Proceedings Paper CT OCEANS MTS/IEEE Conference CY OCT 19-22, 2015 CL Washington, DC SP MTS, IEEE ID REPRESENTATION; RECOGNITION; CLASSIFICATION AB Advancements in Sonar image capture have enabled researchers to apply sophisticated object identification algorithms in order to locate targets of interest in images such as mines [1] [2]. Despite progress in this field, modern sonar automatic target recognition (ATR) approaches lack robustness to the amount of noise one would expect in real-world scenarios, the capability to handle blurring incurred from the physics of image capture, and the ability to excel with relatively few training samples. We address these challenges by adapting modern sparsity-based techniques with dictionaries comprising of training from each class. We develop new discriminative (as opposed to generative) sparse representations which can help automatically classify targets in Sonar imaging. Using a simulated SAS data set from the Naval Surface Warfare Center (NSWC), we obtained compelling classification rates for multi-class problems even in cases with considerable noise and sparsity in training samples. C1 [McKay, John D.; Monga, Vishal] Penn State Univ, University Pk, PA 16802 USA. [Raj, Raghu G.] US Naval Res Lab, Washington, DC USA. [Isaacs, Jason] Naval Surface Warfare Ctr Panama City, Panama City, FL USA. RP McKay, JD (reprint author), Penn State Univ, University Pk, PA 16802 USA. NR 13 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 0197-7385 BN 978-0-933957-43-5 J9 OCEANS-IEEE PY 2015 PG 6 WC Engineering, Marine; Engineering, Electrical & Electronic; Oceanography SC Engineering; Oceanography GA BF3JW UT WOS:000380550000074 ER PT S AU McMahon, J Plaku, E AF McMahon, James Plaku, Erion GP IEEE TI Autonomous Underwater Vehicle Mine Countermeasures Mission Planning via the Physical Traveling Salesman Problem SO OCEANS 2015 - MTS/IEEE WASHINGTON SE OCEANS-IEEE LA English DT Proceedings Paper CT OCEANS MTS/IEEE Conference CY OCT 19-22, 2015 CL Washington, DC SP MTS, IEEE AB Mine Countermeasures (MCM) present a challenging motion-planning problem when taking into account ocean currents, complex bathymetry, and vehicle dynamics. In an effort to improve autonomous underwater vehicle (AUV) motion planning for MCM, this work presents a Physical Traveling Salesmen Problem (PTSP) approach as a way to quickly and robustly generate motions for the reacquisition and identification portion of a MCM mission while considering the temporally and spatially complex marine environment as well as the nonlinear dynamics of the AUV. By leveraging TSP solvers as well as sampling-based motion planning, this work shows that it is possible to efficiently compute low-cost, dynamically-feasible, and collision-free trajectories. C1 [McMahon, James; Plaku, Erion] Catholic Univ Amer, Dept Elect Engn & Comp Sci, Washington, DC 20064 USA. [McMahon, James] US Naval Res Lab, Washington, DC 20375 USA. RP McMahon, J (reprint author), Catholic Univ Amer, Dept Elect Engn & Comp Sci, Washington, DC 20064 USA. NR 15 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 0197-7385 BN 978-0-933957-43-5 J9 OCEANS-IEEE PY 2015 PG 5 WC Engineering, Marine; Engineering, Electrical & Electronic; Oceanography SC Engineering; Oceanography GA BF3JW UT WOS:000380550000213 ER PT S AU Morrison, A Ramsay, L Arroyo, M Ashbrook, K Czerewko, O Lee, S Lintz, C Payne, E Kohut, J Glenn, S Schofield, O Miles, T AF Morrison, Andrenette Ramsay, Liam Arroyo, Martin Ashbrook, Kelsey Czerewko, Olivia Lee, Stephanie Lintz, Caleb Payne, Erin Kohut, Josh Glenn, Scott Schofield, Oscar Miles, Travis GP IEEE TI Model Comparison for Transatlantic Ocean Glider Flight: Student Analysis of Modern Circumnavigation SO OCEANS 2015 - MTS/IEEE WASHINGTON SE OCEANS-IEEE LA English DT Proceedings Paper CT OCEANS MTS/IEEE Conference CY OCT 19-22, 2015 CL Washington, DC SP MTS, IEEE DE Ocean forecasting; Autonomous Underwater Gliders; Challenger Glider Mission ID SYSTEM AB Oceanic forecast models are imperative to understand the Earth's ocean. Current oceanic forecasts assimilate satellite sea surface height and temperature data along with temperature and salinity profiles from Argo networks of over 3000 drifters. Even though assimilation of these datasets are reliable, they have limitations because areas that provide critical data to ocean forecast models are often under sampled. Autonomous Underwater Gliders (IAUGs) can be used as a solution to reduce under sampled regions of the ocean. Over the last decade, AUGs have successfully been used to carry out regional deployments to conduct scientific expeditions throughout the Earth's Ocean. Through the Challenger Glider Mission, coordinated flights covering 128,000 kilometers are planned around the five ocean basins. A range of international institutions and agencies can participate in the mission using interactive tools developed by the U.S. Integrated Ocean Observing System (IIOOS) and the education outreach tools of the U.S. National Science Foundation's (INSF) Ocean Observing Initiative (IOOI). These interactive tools are programmed to display real time glider data with interactive browser-based access, enabling student participation in global ocean exploration and predictive skill experiments. During the summer of 2015, student research teams participated in the second leg of the South Atlantic Challenger Glider Mission (Inamed RU29). The aim is to show the usefulness of RU29's in situ datasets in ocean forecasting by comparing salinity, temperature, and sea surface current observations to the predictive readings of ocean models (IRTOFS, MyOcean) and data generated by the Argo Float program. The students' involvement contributes to the assessment of current scientific and oceanographic models, courtesy of the Challenger Glider Mission. C1 [Morrison, Andrenette; Ramsay, Liam; Kohut, Josh; Glenn, Scott; Schofield, Oscar; Miles, Travis] Rutgers State Univ, Ctr Ocean Observing Leadership, New Brunswick, NJ 08901 USA. [Arroyo, Martin; Ashbrook, Kelsey; Czerewko, Olivia; Lee, Stephanie; Lintz, Caleb; Payne, Erin] US Naval Acad, Annapolis, MD 21402 USA. RP Morrison, A (reprint author), Rutgers State Univ, Ctr Ocean Observing Leadership, New Brunswick, NJ 08901 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 SN 0197-7385 BN 978-0-933957-43-5 J9 OCEANS-IEEE PY 2015 PG 7 WC Engineering, Marine; Engineering, Electrical & Electronic; Oceanography SC Engineering; Oceanography GA BF3JW UT WOS:000380550000339 ER PT S AU Mouring, SE Louca, L Brambleby, R AF Mouring, Sarah E. Louca, Luke Brambleby, Reuben GP IEEE TI Behavior of Perforated Metal-to-Composite Joints Subjected to Tensile Loading SO OCEANS 2015 - MTS/IEEE WASHINGTON SE OCEANS-IEEE LA English DT Proceedings Paper CT OCEANS MTS/IEEE Conference CY OCT 19-22, 2015 CL Washington, DC SP MTS, IEEE DE composite; metal; hybrid; joint ID STRAIN-RATE; STEEL AB Advanced composite materials have many advantages compared to traditional metallic materials including high stiffness-and strength-to-weight ratios, corrosion resistance, damage tolerance, and improved stealth characteristics. Thus, they are being used more often as primary structural members in both civil and military applications. However these materials are not typically applied in isolation due to insufficient stiffness and ductility of composites compared to metallic materials, leading to a rapid expansion of interests in metal and composite combined structures. The design of hybrid metal-to-composite joints is one of the major structural challenges in this area. Hybrid metal-to-composite joints usually entail both material and geometry discontinuities which lead to stiffness mismatch and local stress concentrations. Current research at the U.S. Naval Academy and Imperial College London shows that among the various types of novel metal-to-composite joints, perforated hybrid steel-to-composite joints demonstrate significant potential in naval structural applications. Perforations are cut into the steel increasing the cohesion between steel and composite part of the hybrid joint thus improving the transfer of load between the two parts. In addition to the benefit of mechanical interlocking, it is believed that the perforated steel plate decreases the elastic mismatch between the stiff steel part and the relatively compliant composite part. This paper reviews an Office of Naval Research sponsored research project focusing on a perforated metal-to-composite joint design subjected to tensile loading. C1 [Mouring, Sarah E.] US Naval Acad, Dept Naval Architecture & Ocean Engn, Annapolis, MD 21402 USA. [Louca, Luke; Brambleby, Reuben] Imperial Coll London, Dept Civil & Environm Engn, London, England. RP Mouring, SE (reprint author), US Naval Acad, Dept Naval Architecture & Ocean Engn, Annapolis, MD 21402 USA. 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 SN 0197-7385 BN 978-0-933957-43-5 J9 OCEANS-IEEE PY 2015 PG 8 WC Engineering, Marine; Engineering, Electrical & Electronic; Oceanography SC Engineering; Oceanography GA BF3JW UT WOS:000380550000024 ER PT S AU Moustahfid, H Kochevar, R Weise, MJ Block, B AF Moustahfid, Hassan Kochevar, Randy Weise, Michael J. Block, Barbara GP IEEE TI Integrated Management and Visualization of Animal Telemetry Observations: Serving data from a wide variety of platforms used in animal telemetry SO OCEANS 2015 - MTS/IEEE WASHINGTON SE OCEANS-IEEE LA English DT Proceedings Paper CT OCEANS MTS/IEEE Conference CY OCT 19-22, 2015 CL Washington, DC SP MTS, IEEE AB In the past two decades, rapid advances in animal transmitters, data storage tags and tracking technology have made it possible to use animals to collect high quality biological and oceanographic observations as they cruise through ocean habitats. However, despite significant investment in tagging and tracking technology, integrated data management and visualization systems have lacked. The growing volume of these data holdings, the large diversity of tag types and data formats, and the general lack of data management are not only complicating integration and synthesis of animal telemetry and tracking data but potentially threatening the integrity and longer term access to these valuable datasets. To address this critical gap, the United States Integrated Ocean Observing System (U.S. IOOS) Animal Telemetry Data Management and Visualization System (ATN DAC) has been developed to provide an integrated system of most known transmitters and tracking systems. The ATN DAC in its first version provides a clean and intuitive Google Maps-based user interface with simple, color-coded icons for various tag types, including satellite-linked tags, archival tags, pop-up satellite archival tags, acoustic receiver buoys and autonomous mobile gliders equipped with acoustic receivers. For each tag type, the user can display additional data (e.g., animal track, acoustic detections) by simply clicking on the icons. An icon click also presents the user with a variety of additional options, which vary by platform. These include: display or download depth and temperature profile or conductivity data, display or download animal tracking data, display or download detection data, or view and query datasets through a webservice such as NOAAEnvironmental Research Division's Data Access Protocol (ERDDAP) server. These data management and visualization tools are designed to enable Animal Telemetry data sharing and integrating biological data with environmental data observations and models. In this presentation we provide an overview of the ATN DAC data management and visualizations capabilities (figure 1) and linking this data service to ocean models and applications. C1 [Moustahfid, Hassan] NOAA, US Integrated Ocean Observing Syst, Silver Spring, MD 20910 USA. [Kochevar, Randy; Block, Barbara] Stanford Univ, Dept Biol, Hopkins Marine Stn, Pacific Grove, CA 93950 USA. [Weise, Michael J.] US Navy, Off Naval Res, Arlington, VA USA. RP Moustahfid, H (reprint author), NOAA, US Integrated Ocean Observing Syst, Silver Spring, MD 20910 USA. EM Hassan.Moustahfid@noaa.gov 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 0197-7385 BN 978-0-933957-43-5 J9 OCEANS-IEEE PY 2015 PG 4 WC Engineering, Marine; Engineering, Electrical & Electronic; Oceanography SC Engineering; Oceanography GA BF3JW UT WOS:000380550000009 ER PT S AU Ramotowski, TS Rice, MA Duszkiewicz, AM AF Ramotowski, Thomas S. Rice, Matthew A. Duszkiewicz, Adam M. GP IEEE TI DGO-1: A Metal Coating/Surface Treatment Resistant to Cathodic Delamination SO OCEANS 2015 - MTS/IEEE WASHINGTON SE OCEANS-IEEE LA English DT Proceedings Paper CT OCEANS MTS/IEEE Conference CY OCT 19-22, 2015 CL Washington, DC SP MTS, IEEE DE cathodic delamination; cathodic disbondment; cable connectors; NCC; non-conductive ceramic coatings; DGO-1; accelerated life testing; adhesion; peel testing AB Finding coatings/surface treatments that are resistant to cathodic delamination is not an easy task. Both the materials used and the inter-material bonds must be able to survive exposure to a very high pH (13-14) environment. During the last two years, the U.S. Navy has been testing non-conductive ceramic (NCC) coatings and a proprietary polymeric coating made by Teledyne/D.G. O'Brien called "DGO-1" for resistance to cathodic delamination. These experiments utilized an elevated temperature accelerated life test (ALT) in which solid, cylindrical monel 400 alloy samples were placed in a 66 degrees C salt solution (3.5% sodium chloride) with zinc sacrificial anodes attached to simulate cable connectors subjected to an environment conducive to cathodic delamination. The DGO-1 coated samples were overmolded with PR-420 primer and PR-1547 polyurethane (PRC-DeSoto). The Arrhenius time-temperature correlation for this ALT was based upon the rate of cathodic delamination observed on bare metal monel 400 flat coupon samples made with the same primer and polyurethane encapsulant. One equivalent year (EY) of exposure was calculated to be 31.2 days in the ALT tank. Circumferential peel test data from the DGO-1 coated samples indicate that cable connectors of similar dimensions could be expected to last for 18 EYs under environmental conditions that promote cathodic delamination. DGO-1 coated samples lasted much longer than bare-metal samples made with PR-420 primer and PR-1547 polyurethane, and they also survived significantly longer than monel 400 samples with NCC coatings and standard seal coats overmolded with the same primer and polyurethane encapsulant. C1 [Ramotowski, Thomas S.; Rice, Matthew A.; Duszkiewicz, Adam M.] US Navy, Naval Sea Syst Command, Div Newport, Naval Undersea Warfare Ctr, Newport, RI 02841 USA. RP Ramotowski, TS (reprint author), US Navy, Naval Sea Syst Command, Div Newport, Naval Undersea Warfare Ctr, Newport, RI 02841 USA. EM thomas.ramotowski@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 0197-7385 BN 978-0-933957-43-5 J9 OCEANS-IEEE PY 2015 PG 8 WC Engineering, Marine; Engineering, Electrical & Electronic; Oceanography SC Engineering; Oceanography GA BF3JW UT WOS:000380550000040 ER PT S AU Ramsay, L Morrison, A Kohut, J Schofield, O Miles, T Glenn, S Lintz, C AF Ramsay, Liam Morrison, Andrenette Kohut, Josh Schofield, Oscar Miles, Travis Glenn, Scott Lintz, Caleb GP IEEE TI Glider Advancements in Efficiency: Enhancing Factors Necessary for Ocean-Wide Flights SO OCEANS 2015 - MTS/IEEE WASHINGTON SE OCEANS-IEEE LA English DT Proceedings Paper CT OCEANS MTS/IEEE Conference CY OCT 19-22, 2015 CL Washington, DC SP MTS, IEEE DE Battery Consumption; Pitch Angle; Compass Calibration; Autonomous Underwater Gliders AB The Slocum Glider is an instrument of efficiency and getting more out of less. When looking at getting the most distance out of a single battery, it is important to consider many different variables. Horizontal speed and flight path planning can both play a part in being able to achieve flight across ocean basins. With the ability to change a glider's velocity, a pilot could determine the quickest speed to fly the glider trans-ocean without depleting the battery. In other words, the pilot could choose the optimal pitch angle for a specific mission. Different pitch angles travel at different speeds while consuming battery power at different rates. One mission may carry great importance on speed rather than energy while another mission would rather go slow-and-steady in order to save as much power possible. Through enabling a pilot to change the speed of a glider through pitch angle, shorter missions can be done much more quickly while longer missions can conserve more energy while flying at a slower pace. Additionally, having a flight path that utilizes the currents in the ocean is a method used today to make gliders run efficiently. Making sure all instruments are reading properly is crucial to being able to navigate these currents. The key to this accurate navigation is a properly calibrated compass. Compass calibration can be complicated and frustrating but new methods of calibration have been able to remove a lot of the error that is associated with the compass. One comparison deals with a calibration of hanging a glider with ropes versus a calibration using a wooden tilt cart. Having the glider travel on the correct course between waypoints can cut miles off the overall trip that may add up and waste battery. C1 [Ramsay, Liam; Morrison, Andrenette; Kohut, Josh; Schofield, Oscar; Miles, Travis; Glenn, Scott] Rutgers State Univ, Ctr Ocean Observing Leadership, New Brunswick, NJ 08903 USA. [Lintz, Caleb] US Naval Acad, Annapolis, MD 21402 USA. RP Ramsay, L (reprint author), Rutgers State Univ, Ctr Ocean Observing Leadership, New Brunswick, NJ 08903 USA. EM Lar271@scarletmail.rutgers.edu 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 0197-7385 BN 978-0-933957-43-5 J9 OCEANS-IEEE PY 2015 PG 5 WC Engineering, Marine; Engineering, Electrical & Electronic; Oceanography SC Engineering; Oceanography GA BF3JW UT WOS:000380550000386 ER PT S AU Rumbaugh, LK Illig, DW Banavar, MK Jemison, WD Cochenour, B AF Rumbaugh, Luke K. Illig, David W. Banavar, Mahesh K. Jemison, William D. Cochenour, Brandon GP IEEE TI A Wideband Noise-like Transmitter Approach for Underwater Lidar using Diode Lasers and Passive Fiber Optic Processors SO OCEANS 2015 - MTS/IEEE WASHINGTON SE OCEANS-IEEE LA English DT Proceedings Paper CT OCEANS MTS/IEEE Conference CY OCT 19-22, 2015 CL Washington, DC SP MTS, IEEE ID RADAR; DELAY AB A new wideband noise-like transmitter approach is presented for high resolution underwater lidar sensing. The transmitter approach is based on small-footprint, low-cost components, using low coherence time laser diodes and passive fiber processors to generate wideband noise-like intensity modulation signals in the blue-green optical spectrum. Prototype transmitters are demonstrated using both blue and green laser diodes with passive fiber interferometer structures. Laboratory water tank experiments using a two-diode 516/518 nm prototype transmitter show centimeter range error and 30 cm range resolution while detecting a submerged gray target in up to ten attenuation lengths of turbid water. Experimentally observed challenges for target rangefinding are discussed, including shot noise, backscatter returns, and self-clutter. Strategies are proposed to mitigate these challenges and enhance performance when operating at long standoff distances in turbid waters. C1 [Rumbaugh, Luke K.; Illig, David W.; Banavar, Mahesh K.; Jemison, William D.] Clarkson Univ, Dept Elect & Comp Engn, Potsdam, NY USA. [Cochenour, Brandon] Naval Air Warfare Ctr, Electroopt & Special Miss Sensors Div, Patuxent River, MD USA. RP Rumbaugh, LK (reprint author), Clarkson Univ, Dept Elect & Comp Engn, Potsdam, NY USA. EM rumbaulk@clarkson.edu NR 25 TC 0 Z9 0 U1 2 U2 2 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 0197-7385 BN 978-0-933957-43-5 J9 OCEANS-IEEE PY 2015 PG 8 WC Engineering, Marine; Engineering, Electrical & Electronic; Oceanography SC Engineering; Oceanography GA BF3JW UT WOS:000380550000099 ER PT S AU Uhlmann, J Lanzagorta, M Venegas-Andraca, SE AF Uhlmann, Jeffrey Lanzagorta, Marco Venegas-Andraca, Salvador E. GP IEEE TI Quantum Communications in the Maritime Environment SO OCEANS 2015 - MTS/IEEE WASHINGTON SE OCEANS-IEEE LA English DT Proceedings Paper CT OCEANS MTS/IEEE Conference CY OCT 19-22, 2015 CL Washington, DC SP MTS, IEEE ID KEY DISTRIBUTION AB In this paper we describe research relating to the potential use of quantum key distribution (QKD) protocols for secure underwater communications. We briefly summarize the BB84 QKD protocol, its implementation and use in free-space applications, and then describe recent theoretical considerations of its use in the maritime domain. We also consider alternatives to QKD that offer security and bandwidth utilization advantages when applicable. C1 [Uhlmann, Jeffrey] Univ Missouri, 201 EBW, Columbia, MO 65211 USA. [Lanzagorta, Marco] US Naval Res Lab, Washington, DC 20375 USA. [Venegas-Andraca, Salvador E.] Tecnol Monterrey ECI, Monterrey 52926, Edo Mexico, Mexico. RP Uhlmann, J (reprint author), Univ Missouri, 201 EBW, Columbia, MO 65211 USA. EM uhlmannj@missouri.edu; marco.lanzagorta@nrl.navy.mil; salvador.venegas-andraca@keble.oxon.org 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 0197-7385 BN 978-0-933957-43-5 J9 OCEANS-IEEE PY 2015 PG 10 WC Engineering, Marine; Engineering, Electrical & Electronic; Oceanography SC Engineering; Oceanography GA BF3JW UT WOS:000380550000171 ER PT S AU Valladarez, LTND Du Toit, NE AF Valladarez, L. T. Nicholas D. Du Toit, Noel E. GP IEEE TI Robust Adaptive Control of Underwater Vehicles for Precision Operations SO OCEANS 2015 - MTS/IEEE WASHINGTON SE OCEANS-IEEE LA English DT Proceedings Paper CT OCEANS MTS/IEEE Conference CY OCT 19-22, 2015 CL Washington, DC SP MTS, IEEE AB Using an Autonomous Underwater Vehicle (AUV) for close-proximity operations (e.g., close to the seafloor, a vessel, or divers) requires robust, precise vehicle control. When performing joint human-robot operations, a Robotic Diver Assistant can perform tasks such as tool carrying, worksite illumination, or other tasks that a dive buddy might perform. Precise control of the AUV normally requires accurate knowledge of the vehicle's dynamics; however, such models are difficult to obtain. Furthermore, the utility of the resulting model is diminished if, for example, the vehicle configuration changes intentionally or unexpectedly. An ideal control system allows the AUV to handle uncertain environmental conditions, varying payload configurations, and actuator failures. Adaptive control can give an agile AUV the necessary robustness for close-proximity operations, including joint robot-diver operations. Model Reference Adaptive Controls is investigated here for heave control of an agile, tethered, hovering-capable AUV, ACQUAS. C1 [Valladarez, L. T. Nicholas D.; Du Toit, Noel E.] Naval Postgrad Sch, Mech & Aerosp Engn, Monterey, CA 93943 USA. RP Valladarez, LTND (reprint author), Naval Postgrad Sch, Mech & Aerosp Engn, Monterey, CA 93943 USA. EM nedutoit@nps.edu NR 14 TC 0 Z9 0 U1 2 U2 2 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 0197-7385 BN 978-0-933957-43-5 J9 OCEANS-IEEE PY 2015 PG 7 WC Engineering, Marine; Engineering, Electrical & Electronic; Oceanography SC Engineering; Oceanography GA BF3JW UT WOS:000380550000205 ER PT S AU Venegas-Andraca, SE Lanzagorta, M Uhlmann, J AF Venegas-Andraca, Salvador E. Lanzagorta, Marco Uhlmann, Jeffrey GP IEEE TI Maritime Applications of Quantum Computation SO OCEANS 2015 - MTS/IEEE WASHINGTON SE OCEANS-IEEE LA English DT Proceedings Paper CT OCEANS MTS/IEEE Conference CY OCT 19-22, 2015 CL Washington, DC SP MTS, IEEE ID TURING-MACHINES; COMPUTER; ALGORITHMS; IMAGES; PHYTOPLANKTON; UNIVERSAL; PHYSICS; MODELS; SYSTEM; GATES C1 [Venegas-Andraca, Salvador E.] ECI, Tecnol Monterrey, Ciudad Lopez Mateos 52926, Edo Mexico, Mexico. [Lanzagorta, Marco] US Naval Res Lab, Washington, DC 20375 USA. [Uhlmann, Jeffrey] Univ Missouri, Columbia, MO 65211 USA. RP Venegas-Andraca, SE (reprint author), ECI, Tecnol Monterrey, Ciudad Lopez Mateos 52926, Edo Mexico, Mexico. EM salvador.venegas-andraca@keble.oxon.org; marco.lanzagorta@nrl.navy.mil; uhlmannj@missouri.edu NR 96 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 0197-7385 BN 978-0-933957-43-5 J9 OCEANS-IEEE PY 2015 PG 8 WC Engineering, Marine; Engineering, Electrical & Electronic; Oceanography SC Engineering; Oceanography GA BF3JW UT WOS:000380550000197 ER PT S AU Tokuda, KL Kim, JH Baxley, RJ Kenney, JS Cohen, LS AF Tokuda, Kathleen L. Kim, Joseph H. Baxley, Robert J. Kenney, J. Stevenson Cohen, Lawrence S. GP IEEE TI Receiver Cancellation of Radar in Radio SO 2015 IEEE RADIO AND WIRELESS SYMPOSIUM (RWS) SE IEEE Radio and Wireless Symposium LA English DT Proceedings Paper CT IEEE Topical Conference on Power Amplifiers for Wireless and Radio Applications (PAWR) CY JAN 25-28, 2015 CL San Diego, CA SP IEEE, MTTS, APS, EMB ID VOLTERRA SERIES; POLYNOMIALS AB Global pressure to use spectrum more efficiently has sparked a great deal of research to mitigate spectral and spatial congestion between radar and radio systems operating in a shared spectrum access environment. This paper summarizes an algorithmic method of interference cancellation that enables the radar and radio to operate with reduced spatial and spectral separation. These performance improvements are achieved by modeling the measured spectral broadening due to nonlinear effects at the radar transmitter and cancelling this out-of-band interference at the communications receiver. Subsampling to address hardware constraints on receiver bandwidth and to achieve data (complexity) reduction is shown to be feasible. C1 [Tokuda, Kathleen L.; Baxley, Robert J.; Kenney, J. Stevenson] Georgia Inst Technol, Atlanta, GA 30332 USA. [Kim, Joseph H.; Baxley, Robert J.] Georgia Tech Res Inst, Atlanta, GA 30318 USA. [Cohen, Lawrence S.] Naval Res Lab, Washington, DC 20375 USA. RP Tokuda, KL (reprint author), Georgia Inst Technol, Atlanta, GA 30332 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 2164-2958 BN 978-1-4799-5507-7 J9 IEEE RADIO WIRELESS PY 2015 BP 74 EP 77 PG 4 WC Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA BF4BJ UT WOS:000380614600025 ER PT S AU West, N Geiger, D Scheets, G AF West, Nathan Geiger, Douglas Scheets, George GP IEEE TI Accelerating Software Radio on ARM: Adding NEON Support to VOLK SO 2015 IEEE RADIO AND WIRELESS SYMPOSIUM (RWS) SE IEEE Radio and Wireless Symposium LA English DT Proceedings Paper CT IEEE Topical Conference on Power Amplifiers for Wireless and Radio Applications (PAWR) CY JAN 25-28, 2015 CL San Diego, CA SP IEEE, MTTS, APS, EMB AB We extend GNU Radio's VOLK library to use ARM SIMD instructions by creating optimized signal processing routines in NEON with both compiler intrinsics functions and hand-tuned assembly where appropriate. We use source analysis and disassembly to determine when hand-tuned assembly is required for optimization. Finally, profiling results using ARM Cortex-A9 processors are presented that demonstrate our performance improvements. C1 [West, Nathan; Geiger, Douglas] US Naval Res Lab, Washington, DC 20375 USA. [West, Nathan; Scheets, George] Oklahoma State Univ, Stillwater, OK 74078 USA. RP West, N (reprint author), US Naval Res Lab, 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 SN 2164-2958 BN 978-1-4799-5507-7 J9 IEEE RADIO WIRELESS PY 2015 BP 174 EP 176 PG 3 WC Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA BF4BJ UT WOS:000380614600057 ER PT S AU Escobar, S Meadows, C Meseguer, J Santiago, S AF Escobar, Santiago Meadows, Catherine Meseguer, Jose Santiago, Sonia BE Bodei, C Ferrari, GL Priami, C TI Symbolic Protocol Analysis with Disequality Constraints Modulo Equational Theories SO PROGRAMMING LANGUAGES WITH APPLICATIONS TO BIOLOGY AND SECURITY: ESSAYS DEDICATED TO PIERPAOLO DEGANO ON THE OCCASION OF HIS 65TH BIRTHDAY SE Lecture Notes in Computer Science LA English DT Proceedings Paper CT Colloquium on Programming Languages with Applications to Biology and Security CY JUN 19, 2015 CL Univ Pisa, Dept Comp Sci, Pisa, ITALY HO Univ Pisa, Dept Comp Sci ID MAUDE-NPA; DISUNIFICATION; COMBINATION; SECURITY AB Research in the formal analysis of cryptographic protocols has produced much good work in the solving of equality constraints, developing new methods for unification, matching, and deducibility. However, considerably less attention has been paid to disequality constraints. These also arise quite naturally in cryptographic protocol analysis, in particular for analysis of indistinguishability properties. Thus methods for deciding whether or not they are satisfiable could potentially be quite useful in reducing the size of the search space by protocol analysis tools. In this paper we develop a framework for reasoning about disequality constraints centered around the paradigm of the most discriminating Dolev-Yao attacker, who is able to detect a disequality if it is satisfied in some implementation of the crypto-algebra satisfying given equality properties. We develop several strategies for handling disequalities, prove their soundness and completeness, and demonstrate the result of experimental analyses using the various strategies. Finally, we discuss how disequality checking algorithms could be incorporated within symbolic reachability protocol analysis methods. C1 [Escobar, Santiago] Univ Politecn Valencia, DSIC ELP, Valencia, Spain. [Meadows, Catherine] Naval Res Lab, Washington, DC 20375 USA. [Meseguer, Jose; Santiago, Sonia] Univ Illinois, Champaign, IL USA. RP Meadows, C (reprint author), Naval Res Lab, Washington, DC 20375 USA. EM sescobar@dsic.upv.es; meadows@itd.nrl.navy.mil; meseguer@illinois.edu; soniasp@illinois.edu RI Escobar, Santiago/C-9589-2012 OI Escobar, Santiago/0000-0002-3550-4781 NR 25 TC 0 Z9 0 U1 0 U2 0 PU SPRINGER INT PUBLISHING AG PI CHAM PA GEWERBESTRASSE 11, CHAM, CH-6330, SWITZERLAND SN 0302-9743 BN 978-3-319-25527-9; 978-3-319-25526-2 J9 LECT NOTES COMPUT SC PY 2015 VL 9465 BP 238 EP 261 DI 10.1007/978-3-319-25527-9_16 PG 24 WC Computer Science, Interdisciplinary Applications; Computer Science, Theory & Methods SC Computer Science GA BF4EJ UT WOS:000380766100016 ER PT J AU Scrofani, JW Tummala, M Miller, D Shifflett, D McEachen, JC AF Scrofani, James W. Tummala, Murali Miller, Donna Shifflett, Deborah McEachen, John C. GP IEEE TI Behavioral Detection in the Maritime Domain SO 2015 10th System of Systems Engineering Conference (SoSE) LA English DT Proceedings Paper CT 10th System of Systems Engineering Conference (SoSE) CY MAY 17-20, 2015 CL San Antonio, TX SP UISA, IEEE, RIT, RELIABILITYSOCIETY, SMC, INCOSE, IEEE SMC SOC, IEEE RELIABILITY SOC, MABL, ROCHESTER I TECHN, ACE, U TEXAS SAN ANTONIO DE High-level data fusion; pattern detection; behavior detection; clustering; spatiotemporal analysis; maritime domain awareness; activity-based intelligence AB The maritime domain is important to the security, prosperity and vital interests of the global community. In order to protect these interests, governments require capabilities that provide situational awareness of the maritime domain. In [11] a spatiotemporal analysis approach is proposed that autonomously analyzes and classifies ship movement and possible intent at sea. The analysis focuses on detection of vessels of interest that exhibit one behavior, paralleling or following behavior. In this paper, we extend this approach by proposing a generalized semantic method that enables consideration of other behaviors of interest. Additionally we conduct a series of simulations using simulated and real AIS data to assess the performance of the algorithm to variation in behavior thresholds. C1 [Scrofani, James W.; Tummala, Murali; Miller, Donna; Shifflett, Deborah; McEachen, John C.] Naval Postgrad Sch, Elect & Comp Engn Dept, Monterey, CA 93943 USA. RP Scrofani, JW (reprint author), Naval Postgrad Sch, Elect & Comp Engn Dept, Monterey, CA 93943 USA. EM jwscrofa@nps.edu; tummala@nps.edu NR 13 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4799-7611-9 PY 2015 BP 380 EP 385 PG 6 WC Automation & Control Systems; Engineering, Electrical & Electronic SC Automation & Control Systems; Engineering GA BF3AK UT WOS:000380516100026 ER PT J AU Nguyen, GD Kompella, S Kam, C Wieselthier, JE Ephremides, A AF Nguyen, Gam D. Kompella, Sastry Kam, Clement Wieselthier, Jeffrey E. Ephremides, Anthony GP IEEE TI Minimum-Energy Link Scheduling for Emptying Wireless Networks SO 2015 13TH INTERNATIONAL SYMPOSIUM ON MODELING AND OPTIMIZATION IN MOBILE, AD HOC, AND WIRELESS NETWORKS (WIOPT) LA English DT Proceedings Paper CT 13th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt) CY MAY 25-29, 2015 CL Mumbai, INDIA ID INTERFERENCE; CAPACITY AB We consider a wireless network consisting of source-destination pairs, in which each source is required to transmit a given bit volume to its destination. The goal is for all the sources to transmit the given bit volumes, under a time constraint, so that the total transmission energy is minimized. Our approach is the joint optimization of link scheduling and power control for minimum energy. We show that TDMA scheduling is appropriate for this goal, in the sense that TDMA is asymptotically optimal when the time constraint approaches infinity. When the time constraint is strictly bounded, we show that TDMA is also optimal for the case of equal channel gains. C1 [Nguyen, Gam D.; Kompella, Sastry; Kam, Clement] Naval Res Lab, Div Informat Technol, Washington, DC 20375 USA. [Wieselthier, Jeffrey E.] Wieselthier Res, Silver Spring, MD USA. [Ephremides, Anthony] Univ Maryland, Elect & Comp Engn Dept, College Pk, MD 20742 USA. RP Nguyen, GD (reprint author), Naval Res Lab, Div Informat Technol, Washington, DC 20375 USA. 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 978-3-9018-8274-6 PY 2015 BP 207 EP 212 PG 6 WC Computer Science, Theory & Methods SC Computer Science GA BF3SO UT WOS:000380573700030 ER PT J AU Ganguli, G AF Ganguli, Gurudas GP IEEE TI Increasing Hazards of Orbital Debris: Cause, Effect, and Mitigation SO 2015 1st URSI Atlantic Radio Science Conference (URSI AT-RASC) LA English DT Proceedings Paper CT 1st URSI Atlantic Radio Science Conference (URSI AT-RASC) CY MAY 16-24, 2015 CL Gran Canaria, SPAIN C1 [Ganguli, Gurudas] Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA. RP Ganguli, G (reprint author), Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-9-0900-8628-6 PY 2015 PG 1 WC Engineering, Electrical & Electronic; Remote Sensing SC Engineering; Remote Sensing GA BF3OZ UT WOS:000380563800348 ER PT J AU Helmboldt, JF Taylor, GB Cockrell, S Powers, C AF Helmboldt, Joseph F. Taylor, Gregory B. Cockrell, Sophia Powers, Christopher GP IEEE TI Direct Observations of the Connection Between Meteor Activity and Mid-latitude Sporadic-E using the Long Wavelength Array Radio Telescope SO 2015 1st URSI Atlantic Radio Science Conference (URSI AT-RASC) LA English DT Proceedings Paper CT 1st URSI Atlantic Radio Science Conference (URSI AT-RASC) CY MAY 16-24, 2015 CL Gran Canaria, SPAIN C1 [Helmboldt, Joseph F.] US Naval Res Lab, Washington, DC 20375 USA. [Taylor, Gregory B.; Cockrell, Sophia; Powers, Christopher] Univ New Mexico, Albuquerque, NM 87131 USA. RP Helmboldt, JF (reprint author), US Naval Res Lab, Washington, DC 20375 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-9-0900-8628-6 PY 2015 PG 1 WC Engineering, Electrical & Electronic; Remote Sensing SC Engineering; Remote Sensing GA BF3OZ UT WOS:000380563800352 ER PT J AU Hong, SK Mendez, V Koch, T Wall, W Anlage, SM AF Hong, Sun K. Mendez, Victor Koch, Trystan Wall, Walter Anlage, Steven M. GP IEEE TI Nonlinear Time-Reversal in a Semi-Reverberant Complex Enclosure SO 2015 1st URSI Atlantic Radio Science Conference (URSI AT-RASC) LA English DT Proceedings Paper CT 1st URSI Atlantic Radio Science Conference (URSI AT-RASC) CY MAY 16-24, 2015 CL Gran Canaria, SPAIN C1 [Hong, Sun K.; Mendez, Victor; Wall, Walter] US Naval Res Lab, Washington, DC 20375 USA. [Koch, Trystan; Anlage, Steven M.] Univ Maryland, College Pk, MD 20740 USA. RP Hong, SK (reprint author), US Naval Res Lab, Washington, DC 20375 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-9-0900-8628-6 PY 2015 PG 1 WC Engineering, Electrical & Electronic; Remote Sensing SC Engineering; Remote Sensing GA BF3OZ UT WOS:000380563800232 ER PT J AU Shim, JS Kuznetsova, MM Rastaetter, L Bilitza, D Bingham, S Bust, G Calfas, R Codrescu, M Coster, AJ Crowley, G Emery, BA Foerster, M Foster, B Fuller-Rowell, TJ Goncharenko, L Huba, J Mannucci, A Namgaladze, AA Pi, XQ Prokhorov, BE Ridley, AJ Scherliess, L Schunk, RW Sojka, JJ Zhu, L AF Shim, Ja Soon Kuznetsova, Maria M. Rastaetter, Lutz Bilitza, Dieter Bingham, Suzy Bust, Gary Calfas, Roy Codrescu, Mihail Coster, Anthea J. Crowley, Geoff Emery, Barbara A. Foerster, Matthias Foster, Ben T. Fuller-Rowell, Timothy J. Goncharenko, Larisa Huba, Joe Mannucci, Anthony Namgaladze, Alexander A. Pi, Xiaoqing Prokhorov, Boris E. Ridley, Aaron J. Scherliess, Ludger Schunk, Robert W. Sojka, Jan J. Zhu, Lie GP IEEE TI Community-Wide Model Validation Study for Systematic Assessment of Ionosphere Models SO 2015 1st URSI Atlantic Radio Science Conference (URSI AT-RASC) LA English DT Proceedings Paper CT 1st URSI Atlantic Radio Science Conference (URSI AT-RASC) CY MAY 16-24, 2015 CL Gran Canaria, SPAIN C1 [Shim, Ja Soon] CUA NASA GSFC, Greenbelt, MD 20771 USA. [Kuznetsova, Maria M.; Rastaetter, Lutz] NASA GSFC, Greenbelt, MD USA. [Bilitza, Dieter] George Mason Univ, Sch Phys Astron & Computat Sci, Fairfax, VA 22030 USA. [Bingham, Suzy] Met Off, Exeter EX1 3PB, Devon, England. [Bust, Gary] JHU APL, Laurel, MD USA. [Calfas, Roy] Univ Texas Austin, Austin, TX 78712 USA. [Codrescu, Mihail; Fuller-Rowell, Timothy J.] NOAA SWPC, Boulder, CO USA. [Coster, Anthea J.; Goncharenko, Larisa] MIT, Haystack Observ, Westford, MA 01886 USA. [Crowley, Geoff] ASTRA LLC, Boulder, CO USA. [Emery, Barbara A.; Foster, Ben T.] NCAR HAO, Boulder, CO USA. [Foerster, Matthias; Prokhorov, Boris E.] Helmholtz Ctr Potsdam, GFZ German Res Ctr Geosci, Potsdam, Germany. [Huba, Joe] NRL, Div Plasma Phys, Washington, DC USA. [Mannucci, Anthony; Pi, Xiaoqing] CALTECH, JPL, Pasadena, CA 91125 USA. [Namgaladze, Alexander A.] Murmansk State Tech Univ, Murmansk, Russia. [Ridley, Aaron J.] Univ Michigan, Space Phys Res Lab, Ann Arbor, MI 48109 USA. [Scherliess, Ludger; Schunk, Robert W.; Sojka, Jan J.; Zhu, Lie] Utah State Univ, Logan, UT 84322 USA. RP Shim, JS (reprint author), CUA NASA GSFC, Greenbelt, MD 20771 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-9-0900-8628-6 PY 2015 PG 1 WC Engineering, Electrical & Electronic; Remote Sensing SC Engineering; Remote Sensing GA BF3OZ UT WOS:000380563800381 ER PT J AU Lee, MY Kindt, RW Vouvakis, MN AF Lee, Michael Y. Kindt, Rick W. Vouvakis, Marinos N. GP IEEE TI Polarization Properties of Finite Ultra-wideband Arrays SO 2015 31st International Review of Progress in Applied Computational Electromagnetics (ACES) Vol 31 LA English DT Proceedings Paper CT 31st International Review of Progress in Applied Computational Electromagnetics CY MAR 22-26, 2015 CL Williamsburg, VA SP FEKO, CST, ANDRO AB An important consideration when establishing the radiation characteristics of phased arrays is the polarization purity for scan situations, defined as the ratio between the co-/cx-polarization levels at the particular scan. Two accepted methods for determining the polarization levels of an array will be used to quantify finite array truncation effects on polarization purity of ultra-wideband arrays. Simulated finite array results are used to examine the polarization properties of a Vivaldi array and a planar ultra-wideband modular antenna (PUMA) array, and are compared with respective infinite array results. C1 [Lee, Michael Y.; Vouvakis, Marinos N.] Univ Massachusetts, Dept Elect & Comp Engn, Amherst, MA 01003 USA. [Kindt, Rick W.] Naval Res Lab, Div Radar, Washington, DC USA. RP Lee, MY (reprint author), Univ Massachusetts, Dept Elect & Comp Engn, Amherst, MA 01003 USA. EM micylee@engin.umass.edu; rick.kindt@nrl.navy.mil; vouvakis@engin.umass.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 978-0-9960-0781-8 PY 2015 PG 2 WC Engineering, Electrical & Electronic SC Engineering GA BF3MD UT WOS:000380555900009 ER PT J AU Kokalj-Filipovic, S Greenstein, L AF Kokalj-Filipovic, Silvija Greenstein, Larry GP IEEE TI EM-Based Channel Estimation from Crowd-Sourced RSSI Samples Corrupted by Noise and Interference SO 2015 49th Annual Conference on Information Sciences and Systems (CISS) LA English DT Proceedings Paper CT 49th Annual Conference on Information Sciences and Systems (CISS) CY MAR 18-20, 2015 CL Baltimore, MD ID ALGORITHM AB We propose a method for estimating channel parameters from RSSI measurements and the lost packet count, which can work in the presence of losses due to both interference and signal attenuation below the noise floor. This is especially important in the wireless networks, such as vehicular, where propagation model changes with the density of nodes. The method is based on Stochastic Expectation Maximization, where the received data is modeled as a mixture of distributions (no/low interference and strong interference), incomplete (censored) due to packet losses. The PDFs in the mixture are log-Gamma, according to the commonly accepted model for wireless signal and interference power expressed in dBm. This approach leverages the loss count as additional information, hence outperforming maximum likelihood estimation, which does not use this information (ML-), for a small number of received RSSI samples. Hence, it allows inexpensive on-line channel estimation from ad-hoc collected data. The method also outperforms ML- on uncensored data mixtures, as ML- assumes that samples are from a single-mode PDF. C1 [Kokalj-Filipovic, Silvija; Greenstein, Larry] Rutgers State Univ, WINLAB, New Brunswick, NJ USA. RP Kokalj-Filipovic, S (reprint author), US Naval Res Lab, Washington, DC 20375 USA. EM skokalj@winlab.rutgers.edu; ljg@winlab.rutgers.edu NR 15 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4799-8428-2 PY 2015 PG 6 WC Computer Science, Information Systems; Telecommunications SC Computer Science; Telecommunications GA BF3ZS UT WOS:000380609900088 ER PT J AU Vouras, P AF Vouras, Peter GP IEEE TI Sample Support Requirements for Nonlinear Adaptive Beamforming SO 2015 49th Annual Conference on Information Sciences and Systems (CISS) LA English DT Proceedings Paper CT 49th Annual Conference on Information Sciences and Systems (CISS) CY MAR 18-20, 2015 CL Baltimore, MD ID ARRAYS AB In theory, nonlinear adaptive beamforming techniques which form an extended virtual array from a sparsely populated physical array offer significantly enhanced adaptive degrees of freedom towards mitigating environmental interference as opposed to conventional linear beamformers. A neglected practical issue however, central to the implementation of nonlinear beamformers in radar, is an accurate determination of the data support necessary for computing the adaptive weights and the adapted array output. This paper investigates the data support requirements for a new nonlinear beamformer operating on the streaming output of a multichannel array. The array exists within a quasi-stationary or slowly varying environment where more interference sources are present than array elements. C1 [Vouras, Peter] Naval Res Lab, Washington, DC 20375 USA. RP Vouras, P (reprint author), Naval Res Lab, Washington, DC 20375 USA. 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 978-1-4799-8428-2 PY 2015 PG 6 WC Computer Science, Information Systems; Telecommunications SC Computer Science; Telecommunications GA BF3ZS UT WOS:000380609900019 ER PT J AU Wagner, KT Doroslovacki, MI AF Wagner, Kevin T. Doroslovacki, Milos I. BE Matthews, MB TI IMPROVING CONVERGENCE OF DISTRIBUTED LMS ESTIMATION BY ENABLING PROPAGATION OF GOOD ESTIMATES THROUGH BAD NODES SO 2015 49TH ASILOMAR CONFERENCE ON SIGNALS, SYSTEMS AND COMPUTERS LA English DT Proceedings Paper CT 2015 49th Asilomar Conference on Signals, Systems and Computers CY NOV 08-11, 2015 CL Asilomar Hotel & Conference Grounds, Pacific Grove, CA SP IEEE Signal Proc Soc HO Asilomar Hotel & Conference Grounds DE Adaptive filtering; convergence; distributed algorithms; least mean square algorithms ID ADAPTATION; NETWORKS AB A noisy node that is the only passage between two parts of a network can obstruct propagation of a good estimate through the network. Assuming adapt-then-combine diffusion based least mean square algorithm that uses combiners minimizing the mean square weight deviations, we found a sufficient condition for mean square weight deviation convergence that also guarantees propagation of good estimates through the whole connected part of the network. A practical algorithmic implementation of this condition is developed and compared in performance with several known algorithms for a nontrivial network. The proposed algorithm demonstrates improved performance. C1 [Wagner, Kevin T.] Naval 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), Naval Res Lab, Div Radar, Washington, DC 20375 USA. 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 BN 978-1-4673-8576-3 PY 2015 BP 671 EP 675 PG 5 WC Computer Science, Software Engineering; Computer Science, Theory & Methods SC Computer Science GA BF2JA UT WOS:000380471900121 ER PT J AU Ge, H Kirsteins, IP AF Ge, Hongya Kirsteins, Ivars P. BE Matthews, MB TI LUCKY RANGING IN UNDERWATER ENVIRONMENTS SUBJECT TO SPATIAL COHERENCE LOSS SO 2015 49TH ASILOMAR CONFERENCE ON SIGNALS, SYSTEMS AND COMPUTERS LA English DT Proceedings Paper CT 2015 49th Asilomar Conference on Signals, Systems and Computers CY NOV 08-11, 2015 CL Asilomar Hotel & Conference Grounds, Pacific Grove, CA SP IEEE Signal Proc Soc HO Asilomar Hotel & Conference Grounds ID ARRIVAL ESTIMATION; WAVE-FRONTS; DIRECTION AB For passive ranging in environments subject to unknown fluctuating spatial coherence losses, we derive a new lucky maximum likelihood estimator based on the probabilistic assumption that each collected data snapshot is either coherent or purely incoherent with some probability. Our lucky range estimator can be interpreted as first ranking the coherence quality of each data snapshot according to an an-ay gain-like quantity during the parameter search, followed by accumulation of likelihood surfaces out of data snapshots of high spatial-coherence. This effectively avoids the wash-out or the smearing results encountered in the traditional procedures of utilizing a long integration time without a prior screening for the data spatial-coherence. A connection to the adaptive coherence estimator (ACE) is revealed. Also established is an equivalence between the lucky MLE and the Kullback-Leibler (KL) divergence based spatial coherence test. C1 [Ge, Hongya] New Jersey Inst Technol, Dept ECE, Newark, NJ 07201 USA. [Kirsteins, Ivars P.] Naval Undersea Warfare Ctr, Newport, RI 02841 USA. RP Ge, H (reprint author), New Jersey Inst Technol, Dept ECE, Newark, NJ 07201 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 BN 978-1-4673-8576-3 PY 2015 BP 1659 EP 1663 PG 5 WC Computer Science, Software Engineering; Computer Science, Theory & Methods SC Computer Science GA BF2JA UT WOS:000380471900296 ER PT J AU Barth, M Rayner, GB Mack, S Bennett, BR Datta, S AF Barth, M. Rayner, G. B., Jr. Mack, S. Bennett, B. R. Datta, S. GP IEEE TI Performance Enhancement of InAsSb QW-MOSFETs with in-situ H-2 Plasma Cleaning for Gate Stack Formation SO 2015 73RD ANNUAL DEVICE RESEARCH CONFERENCE (DRC) LA English DT Proceedings Paper CT 2015 73rd Annual Device Research Conference (DRC) CY JUN 21-24, 2015 CL Ohio State Univ, Columbus, OH SP IEEE, IEEE Electron Devices Soc HO Ohio State Univ C1 [Barth, M.; Datta, S.] Penn State Univ, University Pk, PA 16802 USA. [Rayner, G. B., Jr.] Kurt J Lesker Co, Pittsburgh, PA 15025 USA. [Mack, S.; Bennett, B. R.] Naval Res Lab, Washington, DC 20375 USA. RP Barth, M (reprint author), Penn State Univ, University Pk, PA 16802 USA. EM mjb590@psu.edu RI Mack, Shawn/F-4008-2011 OI Mack, Shawn/0000-0001-6696-0483 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 978-1-4673-8135-2 PY 2015 BP 259 EP 260 PG 2 WC Engineering, Electrical & Electronic; Instruments & Instrumentation SC Engineering; Instruments & Instrumentation GA BF1WL UT WOS:000380440500112 ER PT J AU Grande, O Angulo, I Jenn, D Aguado, F Guerra, D de la Vega, D AF Grande, O. Angulo, I. Jenn, D. Aguado, F. Guerra, D. de la Vega, D. GP IEEE TI Analysis of Wind Turbines Radar Cross Section for Analyzing the Potential Impact on Weather Radars SO 2015 9th European Conference on Antennas and Propagation (EuCAP) LA English DT Proceedings Paper CT 9th European Conference on Antennas and Propagation EuCAP CY MAY 13-17, 2015 CL Lisbon, PORTUGAL DE radar cross section; scattering; weather radars; wind energy AB A comprehensive characterization of the radar cross section (RCS) patterns of wind turbines is conducted, by applying Physical Optics approximation and considering specific conditions applicable to the potential impact on weather radars. Results show that monostatic RCS patterns of wind turbines present a significant main lobe generated by the mast of the turbine, perpendicular to the mast surface, extremely directive in the vertical plane, with symmetry with respect to the vertical axis of the mast. Secondary lobes caused by other parts of the turbine are identified, all of them of lower amplitude (at least 10 dB lower). Outcomes of the analysis allow the development of simplified calculation methods of the scattered signals and the potential impact of wind turbines. C1 [Grande, O.; Angulo, I.; Guerra, D.; de la Vega, D.] Univ Basque Country UPV EHU, Dept Commun Engn, Bilbao, Spain. [Jenn, D.] Naval Postgrad Sch, Dept Elect & Comp Engn, Monterey, CA 93943 USA. [Aguado, F.] Spanish Meteorol Agcy AEMet, Terr Remote Sensing Unit, Madrid, Spain. RP Grande, O (reprint author), Univ Basque Country UPV EHU, Dept Commun Engn, Bilbao, Spain. EM david.delavega@ehu.es NR 16 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-8-8907-0185-6 PY 2015 PG 5 WC Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA BF3ES UT WOS:000380533100218 ER PT J AU Song, SZ Liu, Y Auguston, M Sun, J Dong, JS Chen, TM AF Song, Songzheng Liu, Yang Auguston, Mikhail Sun, Jun Dong, Jin Song Chen, Tieming GP IEEE BE Lethbridge, T Cabot, J Egyed, A TI Formalizing and Verifying Stochastic System Architectures Using Monterey Phoenix (SoSyM Abstract) SO 2015 ACM/IEEE 18TH INTERNATIONAL CONFERENCE ON MODEL DRIVEN ENGINEERING LANGUAGES AND SYSTEMS (MODELS) LA English DT Proceedings Paper CT ACM/IEEE 18th International Conference Model Driven Engineering Languages Systems CY SEP 30-OCT 02, 2015 CL Ottawa, CANADA SP IEEE, IEEE Comp Soc, Asso Computing Machinery, SigSoft, Asso Enterprise Architects, Eclipse, CEA AB The analysis of software architecture plays an important role in understanding the system structures and facilitate proper implementation of user requirements. Despite its importance in the software engineering practice, the lack of formal description and verification support in this domain hinders the development of quality architectural models. To tackle this problem, in this work, we develop an approach for modeling and verifying software architectures specified using Monterey Phoenix (MP) architecture description language. MP is capable of modeling system and environment behaviors based on event traces, as well as supporting different architecture composition operations and views. First, we formalize the syntax and operational semantics for MP; therefore, formal verification of MP models is feasible. Second, we extend MP to support shared variables and stochastic characteristics, which not only increases the expressiveness of MP, but also widens the properties MP can check, such as quantitative requirements. Third, a dedicated model checker for MP has been implemented, so that automatic verification of MP models is supported. Finally, several experiments are conducted to evaluate the applicability and efficiency of our approach. C1 [Song, Songzheng; Liu, Yang] Nanyang Technol Univ, Singapore, Singapore. [Auguston, Mikhail] Naval Postgrad Sch, Monterey, CA USA. [Sun, Jun] Singapore Univ Technol & Design, Singapore, Singapore. [Dong, Jin Song] Natl Univ Singapore, Singapore, Singapore. [Chen, Tieming] Zhejiang Univ Technol, Hangzhou, Zhejiang, Peoples R China. RP Song, SZ (reprint author), Nanyang Technol Univ, Singapore, Singapore. RI Liu, Yang/D-2306-2013 NR 6 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4673-6908-4 PY 2015 BP 449 EP 449 PG 1 WC Computer Science, Software Engineering; Engineering, Electrical & Electronic SC Computer Science; Engineering GA BF1LO UT WOS:000380407700053 ER PT J AU Wang, X Gao, YF Lin, J Rangwala, H Mittu, R AF Wang, Xing Gao, Yifeng Lin, Jessica Rangwala, Huzefa Mittu, Ranjeev GP IEEE TI A Machine Learning Approach to False Alarm Detection for Critical Arrhythmia Alarms SO 2015 IEEE 14TH INTERNATIONAL CONFERENCE ON MACHINE LEARNING AND APPLICATIONS (ICMLA) LA English DT Proceedings Paper CT IEEE 14th International Conference on Machine Learning and Applications ICMLA CY DEC 09-11, 2015 CL Miami, FL SP IEEE, AML&A ID INTENSIVE-CARE-UNIT; ICU AB High false alarm rates in Intensive Care Unit (ICU) is a common problem that leads to alarm desensitization-a phenomenon called alarm fatigue. Alarm fatigue can cause longer response time or missing of important alarms. In this work, we propose a methodology to identify false alarms generated by ICU bedside monitors. The novelty in our approach lies in the extraction of 216 relevant features to capture the characteristics of all alarms, from both arterial blood pressure (ABP) and electrocardiogram (ECG) signals. Our multivariate approach mitigates the imprecision caused by existing heartbeat/peak detection algorithms. Unlike existing methods on ICU false alarm detection, our approach does not require separate techniques for different types of alarms. The experimental results show that our approach can achieve high accuracy on false alarm detection, and can be generalized for different types of alarms. C1 [Wang, Xing; Gao, Yifeng; Lin, Jessica; Rangwala, Huzefa] George Mason Univ, Dept Comp Sci, Fairfax, VA 22030 USA. [Mittu, Ranjeev] Naval Res Lab, Washington, DC 20375 USA. RP Wang, X (reprint author), George Mason Univ, Dept Comp Sci, Fairfax, VA 22030 USA. EM xwang24@gmu.edu; ygao12@gmu.edu; jessica@gmu.edu; rangwala@cs.gmu.edu; ranjeev.mittu@nrl.navy.mil NR 18 TC 0 Z9 0 U1 2 U2 2 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS BN 978-1-5090-0287-0 PY 2015 BP 202 EP 207 DI 10.1109/ICMLA.2015.176 PG 6 WC Computer Science, Cybernetics SC Computer Science GA BF2NR UT WOS:000380483600033 ER PT J AU Singh, B De, S Zhang, YMZ Goldstein, T Taylor, G AF Singh, Bharat De, Soham Zhang, Yangmuzi Goldstein, Thomas Taylor, Gavin GP IEEE TI Layer-Specific Adaptive Learning Rates for Deep Networks SO 2015 IEEE 14TH INTERNATIONAL CONFERENCE ON MACHINE LEARNING AND APPLICATIONS (ICMLA) LA English DT Proceedings Paper CT IEEE 14th International Conference on Machine Learning and Applications ICMLA CY DEC 09-11, 2015 CL Miami, FL SP IEEE, AML&A AB The increasing complexity of deep learning architectures is resulting in training time requiring weeks or even months. This slow training is due in part to "vanishing gradients," in which the gradients used by back-propagation are extremely large for weights connecting deep layers ( layers near the output layer), and extremely small for shallow layers ( near the input layer); this results in slow learning in the shallow layers. Additionally, it has also been shown that in highly non-convex problems, such as deep neural networks, there is a proliferation of high-error low curvature saddle points, which slows down learning dramatically [ 1]. In this paper, we attempt to overcome the two above problems by proposing an optimization method for training deep neural networks which uses learning rates which are both specific to each layer in the network and adaptive to the curvature of the function, increasing the learning rate at low curvature points. This enables us to speed up learning in the shallow layers of the network and quickly escape high-error low curvature saddle points. We test our method on standard image classification datasets such as MNIST, CIFAR10 and ImageNet, and demonstrate that our method increases accuracy as well as reduces the required training time over standard algorithms. C1 [Singh, Bharat; De, Soham; Goldstein, Thomas] Univ Maryland, Dept Comp Sci, College Pk, MD 20742 USA. [Zhang, Yangmuzi] Univ Maryland, Dept Elect & Comp Engn, College Pk, MD 20742 USA. [Taylor, Gavin] US Naval Acad, Dept Comp Sci, Annapolis, MD 21402 USA. RP Singh, B (reprint author), Univ Maryland, Dept Comp Sci, College Pk, MD 20742 USA. EM bharat@cs.umd.edu; sohamde@cs.umd.edu; ymzhang@umiacs.umd.edu; tomg@cs.umd.edu; taylor@usna.edu NR 16 TC 0 Z9 0 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS BN 978-1-5090-0287-0 PY 2015 BP 364 EP 368 DI 10.1109/ICMLA.2015.113 PG 5 WC Computer Science, Cybernetics SC Computer Science GA BF2NR UT WOS:000380483600061 ER PT J AU Abramson, M AF Abramson, Myriam GP IEEE TI Sequence Classification with Neural Conditional Random Fields SO 2015 IEEE 14TH INTERNATIONAL CONFERENCE ON MACHINE LEARNING AND APPLICATIONS (ICMLA) LA English DT Proceedings Paper CT IEEE 14th International Conference on Machine Learning and Applications ICMLA CY DEC 09-11, 2015 CL Miami, FL SP IEEE, AML&A DE hybrid learning algorithms; neurocrfs; sequence classification AB The proliferation of sensor devices monitoring human activity generates voluminous amount of temporal sequences needing to be interpreted and categorized. Moreover, complex behavior detection requires the personalization of multi-sensor fusion algorithms. Conditional random fields (CRFs) are commonly used in structured prediction tasks such as part-of-speech tagging in natural language processing. Conditional probabilities guide the choice of each tag/label in the sequence conflating the structured prediction task with the sequence classification task where different models provide different categorization of the same sequence. The claim of this paper is that CRF models also provide discriminative models to distinguish between types of sequence regardless of the accuracy of the labels obtained if we calibrate the class membership estimate of the sequence. We introduce and compare different neural network based linear-chain CRFs and we present experiments on two complex sequence classification and structured prediction tasks to support this claim. C1 [Abramson, Myriam] Naval Res Lab, Washington, DC 20375 USA. RP Abramson, M (reprint author), Naval Res Lab, Washington, DC 20375 USA. EM myriam.abramson@nrl.navy.mil NR 16 TC 0 Z9 0 U1 0 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS BN 978-1-5090-0287-0 PY 2015 BP 799 EP 804 DI 10.1109/ICMLA.2015.49 PG 6 WC Computer Science, Cybernetics SC Computer Science GA BF2NR UT WOS:000380483600144 ER PT J AU Schupp, D Sen Gupta, A Kirsteins, I AF Schupp, Daniel Sen Gupta, Ananya Kirsteins, Ivars GP IEEE TI Characterization and Classification of Sonar Targets Using Ellipsoid Features SO 2015 IEEE GLOBAL CONFERENCE ON SIGNAL AND INFORMATION PROCESSING (GLOBALSIP) LA English DT Proceedings Paper CT IEEE Global Conference on Signal and Information Processing (GlobalSIP) CY DEC 13-16, 2015 CL Orlando, FL DE Underwater acoustics; Sonar detection; Geometric approach; System identification; Object recognition AB We present a geometry-inspired characterization of target response for active sonar that exploits similarity between intra-class features to distinguish between different targets against environmental objects such as a rock. Key innovation is to represent feature manifolds as a set of ellipsoids, each of which geometrically encompasses a unique physical characteristic of the target's response. We have demonstrated over experimental field data that for a given target class, these feature ellipsoids exhibit significant clustering behavior that may be exploited to distinguish the target against other distinct target classes or non-targets that commonly contribute to environmental clutter. C1 [Schupp, Daniel; Sen Gupta, Ananya] Univ Iowa, Sch Elect & Comp Engn, Iowa City, IA 52242 USA. [Kirsteins, Ivars] Naval Undersea Warfare Ctr, Newport, RI USA. RP Schupp, D (reprint author), Univ Iowa, Sch Elect & Comp Engn, Iowa City, IA 52242 USA. EM daniel-schupp@uiowa.edu; ananya-sengupta@uiowa.edu; ivars.kirsteins@navy.mil NR 23 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4799-7591-4 PY 2015 BP 1352 EP 1356 PG 5 WC Computer Science, Artificial Intelligence SC Computer Science GA BF2LH UT WOS:000380477600276 ER PT J AU Brown, A Abramson, M AF Brown, Alex Abramson, Myriam BE Cui, P Dy, J Aggarwal, C Zhou, ZH Tuzhilin, A Xiong, H Wu, X TI Twitter fingerprints as active authenticators SO 2015 IEEE International Conference on Data Mining Workshop (ICDMW) LA English DT Proceedings Paper CT IEEE 15th International Conference on Data Mining Workshops (ICDMW) CY NOV 14-17, 2015 CL ATlantic city, NJ SP Bai du, Stony Brook Univ, Pinnacle, NSF, IEEE, Rutgers, KD nuggets, cisco, drawbridge, IEEE Comp Soc, Conf Publishing Serv DE active authentication; cognitive fingerprints; web analytics AB Leveraging data drawn from the Web, or rather web analytics, has been used to gain business intelligence, increase sales, and optimize websites. Yet beyond the domain of ecommerce that web analytics is typically associated with, authentication based upon user interactions with the Web is also obtainable. Authentication is able to be achieved because just as individuals display unique mannerisms in everyday life, users interact with technology in unique manners. Leveraging these unique patterns, or "cognitive fingerprints", for security purposes can be referred to as active authentication. Active authentication stands to add extra security without added burden, as users are allowed the capability to simply interact with technology in their natural manner. Past research on active authentication has looked at areas such as mouse pattern movements, screen tough patterns on smartphones, and web browsing behavior. Our focus here is web browsing behavior. Specifically, we seek to extend past active authentication research done on Reddit. In this research, we examine the ability of Twitter-specific features to serve as authenticators, by examining the behavior of 50 random Twitter users. Through leveraging data mining and machine learning techniques, we conduct three levels of analysis: (1) we survey the ability of Twitter-specific behavioral features from a broad perspective to determine the feasibility Twitter fingerprints as a form of active authentication; (2) we compare aggregated and non-aggregated datasets to determine whether it is better to aggregate user behavior or look at posts individually; and (3) we examine whether certain features are more important for discrimination than others. The first level of analysis suggests that the posting behavior on Twitter follows the power law of human activity and that users can be uniquely identified with a fairly decent level of accuracy. Second, we find that aggregating the data significantly improves F-scores. Lastly, our examination suggests that there is not any specific feature that serves as more discriminative than others. Rather, what is discriminative for one user may not be for another user. C1 [Brown, Alex] Penn State Univ, Coll Informat Sci & Technol, University Pk, PA 16802 USA. [Abramson, Myriam] Naval Res Lab, Washington, DC 20375 USA. RP Brown, A (reprint author), Penn State Univ, Coll Informat Sci & Technol, University Pk, PA 16802 USA. EM atb5184@ist.psu.edu; myriam.abramson@nrl.navy.mil NR 23 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4673-8493-3 PY 2015 BP 58 EP 63 DI 10.1109/ICDMW.2015.223 PG 6 WC Computer Science, Artificial Intelligence; Computer Science, Theory & Methods; Engineering, Electrical & Electronic SC Computer Science; Engineering GA BF3MK UT WOS:000380556700010 ER PT J AU Nomoto, K Hu, Z Song, B Zhu, M Qi, M Yan, R Protasenko, V Imhoff, E Kuo, J Kaneda, N Mishima, T Nakamura, T Jena, D Xing, HG AF Nomoto, Kazuki Hu, Z. Song, B. Zhu, M. Qi, M. Yan, R. Protasenko, V. Imhoff, E. Kuo, J. Kaneda, N. Mishima, T. Nakamura, T. Jena, D. Xing, Huili Grace GP IEEE TI GaN-on-GaN p-n power diodes with 3.48 kV and 0.95 m Omega.cm(2): a record high figure-of-merit of 12.8 GW/cm(2) SO 2015 IEEE INTERNATIONAL ELECTRON DEVICES MEETING (IEDM) LA English DT Proceedings Paper CT IEEE International Electron Devices Meeting (IEDM) CY DEC 07-09, 2015 CL Washington, DC ID JUNCTION DIODES AB We report GaN p-n diodes on free-standing GaN substrates: a record high Baliga's figure-of-merit (V-B(2)/R-on) of 12.8 GW/cm(2) is achieved with a 32 mu m drift layer and a diode diameter of 107 mu m exhibiting a BV > 3.4 kV and a R-on < 1 m Omega.cm(2). The leakage current density is low: 10(-3) - 10(-4) A/cm(2) at 3 kV. A record low ideality factor of 1.1-1.3 is signature of high GaN quality. These are among the best-reported GaN p-n diodes. C1 [Nomoto, Kazuki; Hu, Z.; Song, B.; Zhu, M.; Yan, R.; Protasenko, V.; Jena, D.; Xing, Huili Grace] Cornell Univ, Sch Elect & Comp Engn, Ithaca, NY 14853 USA. [Nomoto, Kazuki; Hu, Z.; Song, B.; Zhu, M.; Qi, M.; Yan, R.; Protasenko, V.; Jena, D.; Xing, Huili Grace] Univ Notre Dame, Dept Elect Engn, Notre Dame, IN 46556 USA. [Jena, D.; Xing, Huili Grace] Cornell Univ, Dept Mat Sci & Engn, Ithaca, NY 14853 USA. [Imhoff, E.] Naval Res Lab, Washington, DC 20375 USA. [Kuo, J.] Signatone Corp, Gilroy, CA 95020 USA. [Kaneda, N.] Quantum Spread Ltd, Koto Ku, Tokyo 1350004, Japan. [Mishima, T.; Nakamura, T.] Hosei Univ, Koganei, Tokyo 1840003, Japan. RP Nomoto, K (reprint author), Cornell Univ, Sch Elect & Comp Engn, Ithaca, NY 14853 USA. EM kn383@cornell.edu; grace.xing@cornell.edu NR 15 TC 0 Z9 0 U1 3 U2 3 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4673-9894-7 PY 2015 PG 4 WC Engineering, Electrical & Electronic SC Engineering GA BF2JG UT WOS:000380472500059 ER PT J AU Callanan, AE Thulasiraman, P AF Callanan, Audrey E. Thulasiraman, Preetha GP IEEE TI Achieving Sink Node Anonymity Under Energy Constraints in Tactical Wireless Sensor Networks SO 2015 IEEE INTERNATIONAL MULTI-DISCIPLINARY CONFERENCE ON COGNITIVE METHODS IN SITUATION AWARENESS AND DECISION SUPPORT (COGSIMA) LA English DT Proceedings Paper CT 2015 IEEE International Multi-Disciplinary Conference on Cognitive Methods in Situation Awareness and Decision Support (CogSIMA) CY MAR 09-12, 2015 CL Orlando, FL AB A wireless sensor network (WSN) is a distributed network that facilitates wireless information gathering within a region of interest. The information collected by sensors is aggregated at a central node know as the sink node. Two challenges in the deployment of WSNs are limited battery power of each sensor node and sink node anonymity. The role played by the sink node raises its profile as a high value target for attack, thus its anonymity is crucial to the security of a WSN. In order to improve network security, we must implement a protocol that conceals the sink node's location while being cognizant of energy resource constraints. In this paper we develop a routing algorithm based on node clustering to improve sink node anonymity while simultaneously limiting node energy depletion. Via MATLAB simulations, we analyze the effectiveness of this algorithm in obfuscating the sink node's location in the WSN while preserving node energy. We show that the anonymity of the sink node is independent of traffic volume and that the average energy consumed by a node remains consistent across topological variations. C1 [Callanan, Audrey E.] US Naval Acad, Annapolis, MD 21402 USA. [Thulasiraman, Preetha] Naval Postgrad Sch, Monterey, CA USA. RP Callanan, AE (reprint author), US Naval Acad, Annapolis, MD 21402 USA. EM callanan@usna.edu; pthulas1@nps.edu NR 13 TC 2 Z9 2 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4799-8015-4 PY 2015 BP 186 EP 192 PG 7 WC Computer Science, Artificial Intelligence; Engineering, Multidisciplinary SC Computer Science; Engineering GA BF1ZB UT WOS:000380447000030 ER PT J AU White, KA Thulasiraman, P AF White, Kevin A. Thulasiraman, Preetha GP IEEE TI Energy Efficient Cross Layer Load Balancing in Tactical Multigateway Wireless Sensor Networks SO 2015 IEEE INTERNATIONAL MULTI-DISCIPLINARY CONFERENCE ON COGNITIVE METHODS IN SITUATION AWARENESS AND DECISION SUPPORT (COGSIMA) LA English DT Proceedings Paper CT 2015 IEEE International Multi-Disciplinary Conference on Cognitive Methods in Situation Awareness and Decision Support (CogSIMA) CY MAR 09-12, 2015 CL Orlando, FL AB A tactical wireless sensor network (WSN) is a distributed network that facilitates wireless information gathering within a region of interest. A challenge in the deployment of WSNs is the limited battery power of each sensor node. This has a significant impact on the service life of the network. In order to improve the lifespan of the network, load balancing techniques using efficient routing mechanisms must be employed such that traffic is distributed between sensor nodes and gateway(s). In this paper, we study load balancing from a cross-layer point of view, specifically considering energy efficiency. We investigate the impact of deploying single and multiple gateways on the following established energy aware load balancing routing techniques: direct routing, minimum transmission energy, low energy adaptive cluster head routing, and zone clustering. Based on the node die out statistics observed with these algorithms, we develop a novel, energy efficient zone clustering algorithm called EZone. Via extensive simulations using MATLAB, we analyze the effectiveness of these algorithms on network performance for single and multiple gateway scenarios and show that the EZone algorithm maximizes network lifetime and service area coverage. C1 [White, Kevin A.; Thulasiraman, Preetha] Naval Postgrad Sch, Monterey, CA USA. RP White, KA (reprint author), Naval Postgrad Sch, Monterey, CA USA. EM Kevin.A.White@me.navy.mil; pthulas1@nps.edu NR 14 TC 1 Z9 1 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4799-8015-4 PY 2015 BP 193 EP 199 PG 7 WC Computer Science, Artificial Intelligence; Engineering, Multidisciplinary SC Computer Science; Engineering GA BF1ZB UT WOS:000380447000031 ER PT B AU Viguier, R Lin, CC AliAkbarpour, H Bunyak, F Pankanti, S Seetharaman, G Palaniappan, K AF Viguier, Raphael Lin, Chung Ching AliAkbarpour, Hadi Bunyak, Filiz Pankanti, Sharathchandra Seetharaman, Guna Palaniappan, Kannappan GP IEEE TI Automatic Video Content Summarization Using Geospatial Mosaics of Aerial Imagery SO 2015 IEEE INTERNATIONAL SYMPOSIUM ON MULTIMEDIA (ISM) SE IEEE International Symposium on Multimedia-ISM LA English DT Proceedings Paper CT IEEE International Symposium on Multimedia (ISM) CY DEC 14-16, 2015 CL Miami, FL SP CPS, IEEE computer soc, FIU COMPUT INFORM SERVICES, Nanjing Univ Posts telecommunications DE video summarization; shot detection; graph cuts; motion analysis; mosaicing; aerial video surveillance ID SURVEILLANCE AB It is estimated that less than five percent of videos are currently analyzed to any degree. In addition to petabyte-sized multimedia archives, continuing innovations in optics, imaging sensors, camera arrays, (aerial) platforms, and storage technologies indicates that for the foreseeable future existing and new applications will continue to generate enormous volumes of video imagery. Contextual video summarizations and activity maps offers one innovative direction to tackling this Big Data problem in computer vision. The goal of this work is to develop semi-automatic exploitation algorithms and tools to increase utility, dissemination and usage potential by providing quick dynamic overview geospatial mosaics and motion maps. We present a framework to summarize (multiple) video streams from unmanned aerial vehicles (UAV) or drones which have very different characteristics compared to structured commercial and consumer videos that have been analyzed in the past. Using both metadata geospatial characteristics of the video combined with fast low-level image-based algorithms, the proposed method first generates mini-mosaics that can then be combined into geo-referenced meta-mosaics imagery. These geospatial maps enable rapid assessment of hours long videos with arbitrary spatial coverage from multiple sensors by generating quick look imagery, composed of multiple mini-mosaics, summarizing spatiotemporal dynamics such as coverage, dwell time, activity, etc. The overall summarization pipeline was tested on several DARPA Video and Image Retrieval and Analysis Tool (VIRAT) datasets. We evaluate the effectiveness of the proposed video summarization framework using metrics such as compression and hours of viewing time. C1 [Viguier, Raphael; AliAkbarpour, Hadi; Bunyak, Filiz; Palaniappan, Kannappan] Univ Missouri, Dept Comp Sci, Columbia, MO 65211 USA. [Viguier, Raphael; Lin, Chung Ching; Pankanti, Sharathchandra] IBM TJ Watson Res, Exploratory Comp Vis, Yorktown Hts, NY 10598 USA. [Seetharaman, Guna] Naval Res Lab, Adv Comp Concepts, Washington, DC 20375 USA. RP Viguier, R (reprint author), Univ Missouri, Dept Comp Sci, Columbia, MO 65211 USA. NR 13 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-5090-0379-2 J9 IEEE INT SYM MULTIM PY 2015 BP 249 EP 253 DI 10.1109/ISM.2015.124 PG 5 WC Computer Science, Information Systems; Telecommunications SC Computer Science; Telecommunications GA BF1ZU UT WOS:000380448900049 ER PT B AU Meena, S Palaniappan, K Seetharaman, G AF Meena, Sachin Palaniappan, Kannappan Seetharaman, Guna GP IEEE TI Interactive Image Segmentation Using Elastic Interpolation SO 2015 IEEE INTERNATIONAL SYMPOSIUM ON MULTIMEDIA (ISM) SE IEEE International Symposium on Multimedia-ISM LA English DT Proceedings Paper CT IEEE International Symposium on Multimedia (ISM) CY DEC 14-16, 2015 CL Miami, FL SP CPS, IEEE computer soc, FIU COMPUT INFORM SERVICES, Nanjing Univ Posts telecommunications DE Interactive image segmentation; semi supervised regression; elastic body splines AB Elastic body splines (EBS) belong to a family of splines introduced for biomedical image registration. EBS models the elastic deformation of a homogeneous isotropic elastic body subjected to external forces. The task of interactive image segmentation is framed as a semi-supervised interpolation where the basis functions are learned using the user provided seed points to model and predict the labels for the unlabeled pixels. Seed points are sparse compared to other methods that may require scribbles and regions. The spline for interpolating labels is the EBS which we compare to our previous work using Gaussian Elastic Body splines (GEBS) [1] for the task of interactive image segmentation. Experimental results show that the EBS is about 14 percent better, in terms of accuracy, than GEBS and significantly better than random walk and graph cut based segmentation. EBS is also 2.5 times faster than GEBS. C1 [Meena, Sachin; Palaniappan, Kannappan] Univ Missouri, Dept Comp Sci, Columbia, MO 65211 USA. [Seetharaman, Guna] US Naval Res Lab, Washington, DC 20375 USA. RP Meena, S (reprint author), Univ Missouri, Dept Comp Sci, Columbia, MO 65211 USA. EM sm3z5@mail.missouri.edu; Pal@missouri.edu; guna@ieee.org NR 12 TC 1 Z9 1 U1 3 U2 3 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-5090-0379-2 J9 IEEE INT SYM MULTIM PY 2015 BP 307 EP 310 DI 10.1109/ISM.2015.78 PG 4 WC Computer Science, Information Systems; Telecommunications SC Computer Science; Telecommunications GA BF1ZU UT WOS:000380448900060 ER PT J AU Abe, DK Pershing, DE Hanna, J Nguyen, KT Chernin, D Chernyavskiy, IA Pasour, JA Levush, B AF Abe, David K. Pershing, Dean E. Hanna, Jeremy Nguyen, Khanh T. Chernin, David Chernyavskiy, Igor A. Pasour, John A. Levush, Baruch GP IEEE TI Linearity Measurements on a Ka-band Traveling-Wave Tube Driver-Booster Combination SO 2015 IEEE INTERNATIONAL VACUUM ELECTRONICS CONFERENCE (IVEC) SE IEEE International Vacuum Electronics Conference IVEC LA English DT Proceedings Paper CT IEEE International Vacuum Electronics Conference (IVEC) CY APR 27-29, 2015 CL Beijing, PEOPLES R CHINA SP BVERI, UESTC, HeFei LeiKe Elect Co LTD, Southeast Univ, Key Lab High Power Microwave Sources Technol,CAS, Anhui Huadong Photoelect Technol Inst, GUOGUANG Elect co Ltd Chengdu, Nanling SanLe Elect Informat Ind Grp Co Ltd DE Traveling-wave tube; linearity; intermodulation AB We present the first results of linearity measurements made on a Ka-band traveling-wave tube (TWT) driver-booster combination consisting of high power, broadband coupled-cavity TWT (CCTWT) cascaded with a folded-waveguide power booster TWT (FWTWT). C1 [Abe, David K.; Chernyavskiy, Igor A.; Pasour, John A.; Levush, Baruch] US Naval Res Lab, Electromagnet Technol Branch, Washington, DC 20375 USA. [Pershing, Dean E.; Hanna, Jeremy; Nguyen, Khanh T.] Beam Wave Res Inc, Bethesda, MD 20814 USA. [Chernin, David] Leidos Inc, Reston, VA USA. RP Abe, DK (reprint author), US Naval Res Lab, Electromagnet Technol Branch, 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 978-1-4799-7110-7 J9 IEEE INT VAC ELECT C PY 2015 PG 2 WC Engineering, Electrical & Electronic SC Engineering GA BF2LW UT WOS:000380479000077 ER PT J AU Joye, CD Cook, AM Calame, JP Abe, DK Nguyen, KT Wright, EL Hanna, JM Chernyavskiy, IA Levush, B AF Joye, Colin D. Cook, Alan M. Calame, Jeffrey P. Abe, David K. Nguyen, Khanh T. Wright, Edward L. Hanna, Jeremy M. Chernyavskiy, Igor A. Levush, Baruch GP IEEE TI Microfabrication Techniques for Millimeter-Wave Vacuum Electronics SO 2015 IEEE INTERNATIONAL VACUUM ELECTRONICS CONFERENCE (IVEC) SE IEEE International Vacuum Electronics Conference IVEC LA English DT Proceedings Paper CT IEEE International Vacuum Electronics Conference (IVEC) CY APR 27-29, 2015 CL Beijing, PEOPLES R CHINA SP BVERI, UESTC, HeFei LeiKe Elect Co LTD, Southeast Univ, Key Lab High Power Microwave Sources Technol,CAS, Anhui Huadong Photoelect Technol Inst, GUOGUANG Elect co Ltd Chengdu, Nanling SanLe Elect Informat Ind Grp Co Ltd DE Photolithography; microfabrication; UV-LIGA; millimeter waves; vacuum electronics; traveling wave tube AB The principal challenge for creating vacuum electron devices in the millimeter-wave (mmW) frequency range is accurate fabrication of slow-wave circuits and other electromagnetic features with tight tolerance. Ultraviolet Photolithography and Electroforming (UV-LIGA) techniques are presented that allow tight tolerance control for slow wave circuits for the mmW and sub-mmW bands. We show how these techniques were applied at the W- and G-bands. C1 [Joye, Colin D.; Cook, Alan M.; Calame, Jeffrey P.; Abe, David K.; Chernyavskiy, Igor A.; Levush, Baruch] US Naval Res Lab, Code 6800, Washington, DC 20375 USA. [Nguyen, Khanh T.; Wright, Edward L.; Hanna, Jeremy M.] Beam Wave Res Inc, Bethesda, MD 20814 USA. RP Joye, CD (reprint author), US Naval Res Lab, Code 6800, Washington, DC 20375 USA. EM colin.joye@nrl.navy.mil NR 4 TC 0 Z9 0 U1 2 U2 2 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4799-7110-7 J9 IEEE INT VAC ELECT C PY 2015 AR sf0122 PG 2 WC Engineering, Electrical & Electronic SC Engineering GA BF2LW UT WOS:000380479000083 ER PT J AU Nguyen, KT Pasour, J Vlasov, A Cooke, S Ludeking, L Levush, B Abe, DK AF Nguyen, Khanh T. Pasour, John Vlasov, Alexander Cooke, Simon Ludeking, Lars Levush, Baruch Abe, David K. GP IEEE TI Oscillation Characteristics in Waveguide-based TWT Amplifiers SO 2015 IEEE INTERNATIONAL VACUUM ELECTRONICS CONFERENCE (IVEC) SE IEEE International Vacuum Electronics Conference IVEC LA English DT Proceedings Paper CT IEEE International Vacuum Electronics Conference (IVEC) CY APR 27-29, 2015 CL Beijing, PEOPLES R CHINA SP BVERI, UESTC, HeFei LeiKe Elect Co LTD, Southeast Univ, Key Lab High Power Microwave Sources Technol,CAS, Anhui Huadong Photoelect Technol Inst, GUOGUANG Elect co Ltd Chengdu, Nanling SanLe Elect Informat Ind Grp Co Ltd DE Amplifier; oscillation; serpentine; folded-waveguide; coupled-cavity; TWT; drive-induced; backward-wave AB In any TWT design, understanding of potential spurious oscillation characteristics is critical to achieve optimal amplifier performance and, more importantly, to avoid the unpleasant surprise of discovering problems after the fact. This paper serves to illustrate these oscillation characteristics and to discuss potential mitigation approaches with special emphasis on serpentine/folded-waveguide TWTs. The relationship between folded-waveguide TWTs and coupled-cavity TWTs is also discussed, particularly, with respect to "drive-induced" oscillations. C1 [Nguyen, Khanh T.] Beam Wave Res Inc, Bethesda, MD 20814 USA. [Pasour, John; Vlasov, Alexander; Cooke, Simon; Levush, Baruch; Abe, David K.] US Naval Res Lab, Washington, DC 20375 USA. [Ludeking, Lars] ATK Mission Res, Newington, VA 22122 USA. RP Nguyen, KT (reprint author), Beam Wave Res Inc, Bethesda, MD 20814 USA. EM Khanh.Nguyen@nrl.navy.mil NR 3 TC 0 Z9 0 U1 2 U2 2 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4799-7110-7 J9 IEEE INT VAC ELECT C PY 2015 PG 2 WC Engineering, Electrical & Electronic SC Engineering GA BF2LW UT WOS:000380479000075 ER PT J AU Pasour, J Nguyen, K Wright, E Pershing, D Abe, D Balkcum, A Wood, F Myers, R Cook, A Hanna, J Cooke, S Levush, B AF Pasour, John Nguyen, Khanh Wright, Edward Pershing, Dean Abe, David Balkcum, Adam Wood, Frank Myers, Robert Cook, Alan Hanna, Jeremy Cooke, Simon Levush, Baruch GP IEEE TI High-Power MMW Sheet Beam Amplifiers SO 2015 IEEE INTERNATIONAL VACUUM ELECTRONICS CONFERENCE (IVEC) SE IEEE International Vacuum Electronics Conference IVEC LA English DT Proceedings Paper CT IEEE International Vacuum Electronics Conference (IVEC) CY APR 27-29, 2015 CL Beijing, PEOPLES R CHINA SP BVERI, UESTC, HeFei LeiKe Elect Co LTD, Southeast Univ, Key Lab High Power Microwave Sources Technol,CAS, Anhui Huadong Photoelect Technol Inst, GUOGUANG Elect co Ltd Chengdu, Nanling SanLe Elect Informat Ind Grp Co Ltd DE Sheet beam; EIK; coupled-cavity; TWT; millimeter wave; vacuum electronic; amplifier; Neptune AB NRL has developed and demonstrated a unique sheet-beam electron gun, which produces a 3.5-4-A, 0.3 x 4 mm electron beam at similar to 20 kV. This electron beam has been successfully used to power multi-kW amplifiers at both Ka and W bands. The devices developed thus far employ a permanent magnet solenoidal field of 6 - 8 kG to transport the electron beam through the interaction circuit. While a periodic permanent magnet (PPM) structure would be much more compact, some compromises in performance are required to utilize PPM focusing. We will discuss some of the design considerations and requirements for high power sheet beam amplifiers and review some key features of the amplifiers demonstrated thus far. C1 [Pasour, John; Nguyen, Khanh; Wright, Edward; Pershing, Dean; Abe, David; Balkcum, Adam; Wood, Frank; Myers, Robert; Cook, Alan; Hanna, Jeremy; Cooke, Simon; Levush, Baruch] US Naval Res Lab, Washington, DC 20375 USA. RP Pasour, J (reprint author), US Naval Res Lab, Washington, DC 20375 USA. EM john.pasour@nrl.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 BN 978-1-4799-7110-7 J9 IEEE INT VAC ELECT C PY 2015 PG 2 WC Engineering, Electrical & Electronic SC Engineering GA BF2LW UT WOS:000380479000076 ER PT J AU Allen, RJ Hinshelwood, DD Schumer, JW Rittersdorf, IM Jackson, SL Ottinger, PF AF Allen, R. J. Hinshelwood, D. D. Schumer, J. W. Rittersdorf, I. M. Jackson, S. L. Ottinger, P. F. GP IEEE TI PULSED VACUUM BREAKDOWN MEASUREMENTS WITH A 1-MV GENERATOR SO 2015 IEEE PULSED POWER CONFERENCE (PPC) LA English DT Proceedings Paper CT 2015 IEEE Pulsed Power Conference (PPC) CY MAY 31-JUN 04, 2015 CL Austin, TX ID VOLTAGE AB Measurements of the breakdown field of vacuum gaps have been made with a 1-MV, 50-ns test stand [1]. The first set of experiments was performed with planar, bare metal electrodes [2]. This geometry had an enhanced anode edge that affected measurements. Here, we report on a new set of measurements using anodes without field enhancement. Diagnostics include current and voltage probes, x-ray detector, x-ray pinhole camera and a fast framing camera. The results of these measurements give new insight into the cause of anode interactions that reduce the breakdown field with large gaps. C1 [Allen, R. J.; Hinshelwood, D. D.; Schumer, J. W.; Rittersdorf, I. M.; Jackson, S. L.; Ottinger, P. F.] Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA. [Jackson, S. L.] Natl Res Council Res Associate, Washington, DC 20001 USA. [Ottinger, P. F.] Consultant Engil Corp, Chantilly, VA 20151 USA. RP Allen, RJ (reprint author), Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA. EM allen@nrl.navy.mil 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 BN 978-1-4799-8403-9 PY 2015 PG 6 WC Engineering, Electrical & Electronic SC Engineering GA BF1SW UT WOS:000380434000008 ER PT J AU Wong, DN Wetz, DA Mansour, AM Heinzel, JM AF Wong, D. N. Wetz, D. A. Mansour, A. M. Heinzel, J. M. GP IEEE TI The Influence of High C Rate Pulsed Discharge on Lithium-ion Battery Cell Degradation SO 2015 IEEE PULSED POWER CONFERENCE (PPC) LA English DT Proceedings Paper CT 2015 IEEE Pulsed Power Conference (PPC) CY MAY 31-JUN 04, 2015 CL Austin, TX ID MECHANISMS; SEI AB Over the past decade, lithium-ion battery (LIB) technology has advanced beyond the scope of simple consumer electronic devices. Nowadays, LIBS of advanced, high power chemistries are being used as a prime power source for many large scale applications, such as electric automobiles and pulsed power platforms, which require a higher standard of performance. LIB degradation mechanisms have been studied thoroughly for decades in nominal rate cycling applications. The common mechanisms that attribute to cell capacity fade and failure are well documented in these cases. However, recent studies into cells cycled at rates above five times their nominal capacity rate show that some degradation mechanisms become more favorable than others. In some extreme cases, cell failure can occur abruptly during ultra-high rate pulsed discharged cells as a result of accelerated degradation phenomenon occurring at the surface of the cell electrode materials. In the work presented here, lithium iron phosphate (LFP) cells have been cycled at 15C with a pulsed discharge profile and the results show unique capacity fade when compared to previously published studies. An abrupt decrease in the usable capacity fade occurs within forty cycles of high rate operation. Electrochemical impedance spectroscopy (EIS) shows that there is a separation in the EIS spectrum over the lifetime of the cell indicating a dominant failure mechanism which is responsible for failure. Electron micrographs of the electrodes surfaces show large SEI buildup on the surface of the graphite anode. However, the buildup is uneven across the length of the roll with the bulk of the growth occurring on the material near the cell core. Areas of graphite anode near the edge of the cell show far less growth and contain small areas that are relatively unaffected by solid-electrolyte interphase (SET) layer buildup. Overall, the evidence further indicates that the previously presented studies on LIB degradation mechanisms is insufficient for characterizing degradation in cells cycled at ultra-high rates with a pulsed discharge profile. These mechanisms must be understood in order to fully understand how these cells will behave and perform when they are used at high pulsed rates in future, compact, high energy, and high pulsed power systems. C1 [Wong, D. N.; Wetz, D. A.] Univ Texas Arlington, Elect Engn, 416 Yates St, Arlington, TX 76019 USA. [Mansour, A. M.] Naval Surface Warfare Ctr, Carderock Div, Bethesda, MD 20817 USA. [Heinzel, J. M.] Naval Surface Warfare Ctr, Philadelphia Div, Philadelphia, PA 19112 USA. RP Wong, DN (reprint author), Univ Texas Arlington, Elect Engn, 416 Yates St, Arlington, TX 76019 USA. EM derek.wong@mays.uta.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 BN 978-1-4799-8403-9 PY 2015 PG 6 WC Engineering, Electrical & Electronic SC Engineering GA BF1SW UT WOS:000380434000188 ER PT J AU Lee, K Kolsch, M AF Lee, Kyoungmin Kolsch, Mathias GP IEEE TI Shot Boundary Detection with Graph Theory using Keypoint Features and Color Histograms SO 2015 IEEE Winter Conference on Applications of Computer Vision (WACV) LA English DT Proceedings Paper CT IEEE Winter Conference on Applications of Computer Vision (WACV 2015) CY JAN 06-09, 2015 CL Waikoloa, HI SP IEEE, IEEE Comp Soc, IEEE Biometrics Council, Amazon ID CUTS AB The TRECVID report of 2010 [14] evaluated video shot boundary detectors as achieving "excellent performance on [hard] cuts and gradual transitions." Unfortunately, while re-evaluating the state of the art of the shot boundary detection, we found that they need to be improved because the characteristics of consumer-produced videos have changed significantly since the introduction of mobile gadgets, such as smartphones, tablets and outdoor activity-purposed cameras, and video editing software has been evolving rapidly. In this paper, we evaluate the best-known approach on a contemporary, publicly accessible corpus, and present a method that achieves better performance, particularly on soft transitions. Our method combines color histograms with keypoint feature matching to extract comprehensive frame information. Two similarity metrics, one for individual frames and one for sets of frames, are defined based on graph cuts. These metrics are formed into temporal feature vectors on which a SVM is trained to perform the final segmentation. The evaluation on said "modern" corpus of relatively short videos yields a performance of 92% recall (at 89% precision) overall, compared to 69% (91%) of the best-known method. C1 [Lee, Kyoungmin; Kolsch, Mathias] Naval Postgrad Sch, Monterey, CA 93940 USA. RP Lee, K (reprint author), Naval Postgrad Sch, Monterey, CA 93940 USA. EM lekomin@gmail.com; kolsch@nps.edu NR 17 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4799-6683-7 PY 2015 BP 1177 EP 1184 DI 10.1109/WACV.2015.161 PG 8 WC Computer Science, Artificial Intelligence; Engineering, Electrical & Electronic SC Computer Science; Engineering GA BF3EN UT WOS:000380532600154 ER PT J AU Askari, A Stark, R Curran, J Rule, D Lin, K AF Askari, Alex Stark, Robert Curran, Joseph Rule, Donald Lin, Kevin GP IEEE TI Underwater Wireless Power Transfer SO 2015 IEEE Wireless Power Transfer Conference (WPTC) LA English DT Proceedings Paper CT 3rd IEEE Wireless Power Transfer Conference (WPTC) CY MAY 13-15, 2015 CL Boulder, CO SP IEEE DE Inductive Power Transmission; Inductive Charging; Circuit Analysis AB The feasibility of transferring power over a wide range of distances and orientation offsets has been proven in air for various commercial applications, notably in the electric vehicle industry, by using two loosely-coupled RLC circuits that are tuned to resonate at the same frequency. Key system concepts for resonant wireless power transfer, such as frequency splitting, maximum operating distance, and behavior of the system as it becomes over and under coupled, are well understood theoretically, and demonstrated experimentally. Although prior work on WPT in air is quite extensive and mature, very little research has been conducted on underwater WPT. In particular, no studies have been published describing how basic system concepts vary within a conducting medium such as seawater. In this paper, we report the results of experiments addressing the effects of seawater conductivity on underwater resonant wireless power transfer, compared to the basic system concepts exhibited in air. Results indicate that the losses due to seawater become noticeable for frequencies around 20 kHz, and can be large for frequencies above 50 kHz. C1 [Askari, Alex; Stark, Robert; Curran, Joseph; Rule, Donald; Lin, Kevin] Naval Surface Warfare Ctr Carderock Div, Bethesda, MD 20817 USA. RP Askari, A (reprint author), Naval Surface Warfare Ctr Carderock Div, Bethesda, MD 20817 USA. NR 4 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4673-7447-7 PY 2015 PG 4 WC Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA BF3HC UT WOS:000380542500014 ER PT J AU Chang, TW Blank, SJ Jaffe, P AF Chang, Tanwin Blank, Stephen J. Jaffe, Paul GP IEEE TI Architecture for an Over-the-Horizon Wireless Power Transmission System at 10.6 microns with Rectenna Power Converters SO 2015 IEEE Wireless Power Transfer Conference (WPTC) LA English DT Proceedings Paper CT 3rd IEEE Wireless Power Transfer Conference (WPTC) CY MAY 13-15, 2015 CL Boulder, CO SP IEEE AB Recent proposals for an Over-the-Horizon Wireless Power Transmission (OTH-WPT) system involving tethered aerostats have been based on rapidly improving technology of solid-state lasers and photovoltaics in the near-infrared as a roadmap to feasibility. OTH-WPT may also be feasible in the LWIR particularly at 10.6 microns, a wavelength that has advantages in terms of mature transmitter technology, laser eye safety, and less deleterious atmospheric effects. Most of the subsystems of OTH-WPT at this wavelength are mature, commercially available technologies. In this article we present the architecture for a 10.6 micron OTH-WPT system. We review the state-of-the art in terahertz rectenna technology and discuss key issues that must be resolved for the feasibility of an OTH-WPT demonstration at this wavelength. C1 [Chang, Tanwin] Deep Phase Labs, 300 Summer St 72, Boston, MA 02210 USA. [Blank, Stephen J.] New York Inst Technol, Old Westbury, NY 11568 USA. [Jaffe, Paul] Naval Res Lab, Washington, DC 20375 USA. RP Chang, TW (reprint author), Deep Phase Labs, 300 Summer St 72, Boston, MA 02210 USA. EM tanwin.chang@deepphase.com; sblank@nyit.edu; paul.jaffe@nrl.navy.mil 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 BN 978-1-4673-7447-7 PY 2015 PG 4 WC Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA BF3HC UT WOS:000380542500062 ER PT S AU Ancona, MG Hobart, KD Anderson, TJ AF Ancona, M. G. Hobart, K. D. Anderson, T. J. GP IEEE TI Coupled 2D/3D Transport: Analysis of Graphene-SiC Devices SO 2015 International Conference on Simulation of Semiconductor Processes and Devices (SISPAD) SE International Conference on Simulation of Semiconductor Processes and Devices LA English DT Proceedings Paper CT International Conference on Simulation of Semiconductor Processes and Devices (SISPAD) CY SEP 09-11, 2015 CL Washington, DC SP COOLCAD Elect, IBM, Intel, Micron, Quantum Wise, Synopsys, Univ Maryland, IEEE DE graphene; SiC; diffusion-drift; density-gradient; transport theory AB Macroscopic equations are discussed that describe carrier transport in situations in which an ordinary 3D semiconductor is coupled to a 2D material like graphene or molybdenum disulfide. The transport equations are familiar ones from either diffusion-drift or density-gradient theory, with the main focus being on the critical boundary conditions that couple the two systems together. To illustrate the hybrid description we apply it to situations involving graphene on p-type SiC. C1 [Ancona, M. G.; Hobart, K. D.; Anderson, T. J.] Naval Res Lab, Elect S&T Div, Washington, DC 20375 USA. RP Ancona, MG (reprint author), Naval Res Lab, Elect S&T Div, Washington, DC 20375 USA. EM ancona@estd.nrl.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 1946-1569 BN 978-1-4673-7860-4 J9 INT CONF SIM SEMI PR PY 2015 BP 161 EP 164 PG 4 WC Engineering, Electrical & Electronic; Physics, Applied; Physics, Condensed Matter SC Engineering; Physics GA BF3HB UT WOS:000380542400042 ER PT S AU Ancona, MG Boos, JB AF Ancona, M. G. Boos, J. B. GP IEEE TI Diffusion-Drift Modeling of Carbon-Based Nanowire FETs SO 2015 International Conference on Simulation of Semiconductor Processes and Devices (SISPAD) SE International Conference on Simulation of Semiconductor Processes and Devices LA English DT Proceedings Paper CT International Conference on Simulation of Semiconductor Processes and Devices (SISPAD) CY SEP 09-11, 2015 CL Washington, DC SP COOLCAD Elect, IBM, Intel, Micron, Quantum Wise, Synopsys, Univ Maryland, IEEE DE diffusion-drift; carbon nanotubes; graphene nanoribbons; field-effect transistors AB Continuum models of transport in carbon nanotubes and graphene nanoribbons are created by treating the charge flow in the carbon layers in a 2D diffusion-drift approximation. A crucial element of the treatment is the electron equation of state that allows the effects of confinement and chirality to be represented. To model nanowire devices, the transport layer is embedded within a 3D structure and coupled to the electrostatics. This is illustrated with applications to carbon-based nanowire field-effect transistors of varying designs. C1 [Ancona, M. G.; Boos, J. B.] Naval Res Lab, Elect S&T Div, Washington, DC 20375 USA. RP Ancona, MG (reprint author), Naval Res Lab, Elect S&T Div, Washington, DC 20375 USA. EM ancona@estd.nrl.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 1946-1569 BN 978-1-4673-7860-4 J9 INT CONF SIM SEMI PR PY 2015 BP 337 EP 340 PG 4 WC Engineering, Electrical & Electronic; Physics, Applied; Physics, Condensed Matter SC Engineering; Physics GA BF3HB UT WOS:000380542400085 ER PT J AU Fu, HY Scales, W Bernhardt, P AF Fu, Haiyang Scales, Wayne Bernhardt, Paul GP IEEE TI Stimulated Brillouin Scattering in Magnetized Ionospheric Plasmas SO 2015 OPTO-ELECTRONICS AND COMMUNICATIONS CONFERENCE (OECC) LA English DT Proceedings Paper CT Opto Electronics Communications Conference (OECC) CY JUN 28-JUL 02, 2015 CL Shanghai, PEOPLES R CHINA ID GYROHARMONIC HEATING EXPERIMENTS; RADIATION AB We compare observations of Stimulated Brillouin scattering produced during ionospheric modification experiments using ground-based high-power high frequency HF radio waves at both the High Frequency Active Auroral Research Program (HAARP) and the European Incoherent scatter (EISCAT). C1 [Fu, Haiyang] Fudan Univ, Key Lab Informat Sci Electromagnet Waves MoE, Shanghai 20433, Peoples R China. [Scales, Wayne] Bradley Dept Elect & Comp Engn, Blacksburg, VA USA. [Bernhardt, Paul] Naval Res Lab, Washington, DC USA. RP Fu, HY (reprint author), Fudan Univ, Key Lab Informat Sci Electromagnet Waves MoE, Shanghai 20433, Peoples R China. EM fuhaiyang@gmail.com; wscales@vt.edu NR 11 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4673-7945-8 PY 2015 PG 3 WC Engineering, Electrical & Electronic; Optics SC Engineering; Optics GA BF2II UT WOS:000380470200193 ER PT S AU Hicks, SF Vanhoy, JR French, AJ Santonil, ZC Crider, BP Peters, EE McEllistrem, MT Prados-Estevez, FM Ross, TJ Yates, SW AF Hicks, S. F. Vanhoy, J. R. French, A. J. Santonil, Z. C. Crider, B. P. Peters, E. E. McEllistrem, M. T. Prados-Estevez, F. M. Ross, T. J. Yates, S. W. BE Doyle, BL Glass, GA McDaniel, FD Wang, Y Parriott, CR TI Undergraduate Measurements of Neutron Cross Sections SO 23rd International Conference on the Application of Accelerators in Research and Industry - CAARI 2014 SE Physics Procedia LA English DT Proceedings Paper CT 23rd International Conference on the Application of Accelerators in Research and Industry (CAARI) CY MAY 25-30, 2014 CL San Antonio, TX DE Undergraduate research; gamma-ray spectroscopy; neutron elastic and inelastic scattering; differential scattering cross sections ID NUCLEAR-DATA; SYSTEMS AB Undergraduate students at the University of Dallas have investigated basic properties of nuclei through gamma-ray and neutron spectroscopy following neutron scattering. The former has been used primarily for nuclear structure investigations, while the latter has been used to measure neutron scattering cross sections important for fission reactor applications. A series of (n,n') and (n,n'gamma) measurements have been made on Fe-54 and Fe-56 to determine neutron cross sections for scattering to excited levels in these nuclei. The former provides the cross sections directly and the latter are used to deduce inelastic neutron scattering cross sections by measuring the gamma-ray production cross sections to states not easily resolved in neutron spectroscopy. All measurements have been completed at the University of Kentucky Accelerator Laboratory using a 7-MV Model CN Van de Graaff accelerator, along with the neutron production and neutron and gamma-ray detection systems located there. Students participate in accelerator operation, experimental setup, data acquisition, and data analyses. An overview of the research program and student contributions is presented. (C) 2015 The Authors. Published by Elsevier B.V. C1 [Hicks, S. F.; French, A. J.; Santonil, Z. C.] Univ Dallas, Dept Phys, Irving, TX 75062 USA. [Vanhoy, J. R.] US Naval Acad, Dept Phys, Annapolis, MD 21402 USA. [Crider, B. P.; Peters, E. E.; McEllistrem, M. T.; Prados-Estevez, F. M.; Ross, T. J.; Yates, S. W.] Univ Kentucky, Dept Chem, Lexington, KY 40506 USA. [Crider, B. P.; Peters, E. E.; McEllistrem, M. T.; Prados-Estevez, F. M.; Ross, T. J.; Yates, S. W.] Univ Kentucky, Dept Phys & Astron, Lexington, KY 40506 USA. RP Hicks, SF (reprint author), Univ Dallas, Dept Phys, Irving, TX 75062 USA. EM hicks@udallas.edu NR 6 TC 0 Z9 0 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 1875-3892 J9 PHYSCS PROC PY 2015 VL 66 BP 641 EP 648 DI 10.1016/j.phpro.2015.05.085 PG 8 WC Physics, Applied; Physics, Atomic, Molecular & Chemical; Physics, Nuclear SC Physics GA BF3UY UT WOS:000380585500083 ER PT S AU McDowell, LK Fleming, A Markel, Z AF McDowell, Luke K. Fleming, Aaron Markel, Zane BE BouabanaTebibel, T Rubin, SH TI Evaluating and Extending Latent Methods for Link-Based Classification SO FORMALISMS FOR REUSE AND SYSTEMS INTEGRATION SE Advances in Intelligent Systems and Computing LA English DT Proceedings Paper CT Conference on Information Reuse and Integration and the IEEE International Workshop on Formal Methods Integration CY AUG 19-20, 2014 CL San Francisco, CA DE Link-based classification; relational classification; statistical relational learning; latent methods ID COLLECTIVE CLASSIFICATION AB Data describing networks such as social networks, citation graphs, hypertext systems, and communication networks is becoming increasingly common and important for analysis. Research on link-based classification studies methods to leverage connections in such networks to improve accuracy. Recently, a number of such methods have been proposed that first construct a set of latent features or links that summarize the network, then use this information for inference. Some work has claimed that such latent methods improve accuracy, but has not compared against the best non-latent methods. In response, this article provides the first substantial comparison between these two groups. Using six real datasets, a range of synthetic data, and multiple underlying models, we show that (non-latent) collective inference methods usually perform best, but that the dataset's label sparsity, attribute predictiveness, and link density can dramatically affect the performance trends. Inspired by these findings, we introduce three novel algorithms that combine a latent construction with a latent or non-latent method, and demonstrate that they can sometimes substantially increase accuracy. C1 [McDowell, Luke K.; Fleming, Aaron; Markel, Zane] US Naval Acad, Dept Comp Sci, 572M Holloway Rd, Annapolis, MD 21402 USA. RP McDowell, LK (reprint author), US Naval Acad, Dept Comp Sci, 572M Holloway Rd, Annapolis, MD 21402 USA. EM lmcdowel@usna.edu; amfleming15@gmail.com; zanemarkel@gmail.com NR 36 TC 0 Z9 0 U1 0 U2 0 PU SPRINGER-VERLAG BERLIN PI BERLIN PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY SN 2194-5357 BN 978-3-319-16577-6; 978-3-319-16576-9 J9 ADV INTELL SYST PY 2015 VL 346 BP 227 EP 256 DI 10.1007/978-3-319-16577-6_10 PG 30 WC Computer Science, Artificial Intelligence; Computer Science, Information Systems; Computer Science, Theory & Methods SC Computer Science GA BF3HK UT WOS:000380543300010 ER PT J AU Zuo, LL AF Zuo, Lala TI Build for the Living: Stone Buildings of the Yuan Dynasty SO FRONTIERS OF HISTORY IN CHINA LA English DT Article DE Yuan dynasty; architecture; stone buildings AB It is easy to find an association between stone architecture and the afterlife in pre-modern China, given that most architecture of brick and stone was used only for mortuary monuments. People in pre-modern China may have believed that timber architecture was for the living while stone architecture was for the deceased. The fact that stone architecture often was designed to imitate timber architecture further buttresses the dominance of timber, both structurally and aesthetically, in the architectural history of pre-modern China. This article focuses on several stone buildings that were built during the Yuan dynasty (1271-1368) for daily religious activities and were rare exceptions to the normative association of stone architecture with the afterlife. Through the study of the structure, decorative motifs and history of these stone buildings, I determine whether they were built to reflect the tradition of imitation timber architecture or were an exception to the dominance of timber architecture. I investigate how these stone buildings should be contextualized in the history of Yuan as well as the history of Chinese architecture. C1 [Zuo, Lala] US Naval Acad, Languages & Cultures Dept, Annapolis, MD 21402 USA. RP Zuo, LL (reprint author), US Naval Acad, Languages & Cultures Dept, Annapolis, MD 21402 USA. EM zuo@usna.edu NR 21 TC 0 Z9 0 U1 0 U2 0 PU HIGHER EDUCATION PRESS PI BEIJING PA NO 4 DEWAI DAJIE, BEIJING 100120, PEOPLES R CHINA SN 1673-3401 EI 1673-3525 J9 FRONT HIST CHINA JI Front. Hist. China PY 2015 VL 10 IS 2 BP 264 EP 288 DI 10.3868/s020-004-015-0015-8 PG 25 WC History SC History GA DS1SG UT WOS:000380378600004 ER PT S AU Monarrez, A Singh, G Buettner, R AF Monarrez, Aurelio Singh, Gurminder Buettner, Raymond BE Vidan, A Shoag, D TI Supporting First-Responders in Infrastructure-less Environments SO HUMANITARIAN TECHNOLOGY: SCIENCE, SYSTEMS AND GLOBAL IMPACT 2015, HUMTECH2015 SE Procedia Engineering LA English DT Proceedings Paper CT Humanitarian Technology: Science, Systems and Global Impact (HumTech) CY MAY 12-14, 2015 CL Boston, MA SP Lockheed Martin Corp DE Peer-to-Peer Communication; Mobile Ad-Hoc Networks; Humanitarian Assistance; Disaster Relief; Infrastructure Less Technology; Wi-Fi Direct AB During a large-scale disaster first responders face a number of different challenges. Their ability to communicate with one another is among the most critical challenges they face. If the disaster has wiped out the infrastructure that enables communications, it creates a serious issue for first responders. In such situations, infrastructure-less technology could enable first responders to establish a communications network independent of any existing operational or non-operational infrastructure. Wi-Fi Direct can enable such communication, but it is fraught with a few issues that need to be addressed to make it usable for first responders. We have developed an extension to Wi-Fi Direct that would address these issues. The extended Wi-Fi Direct protocol allows for a persistent communications network that involves zero user interaction. With our extensions, the protocol does not require any infrastructure or any human involvement to establish a communications network. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license. C1 [Monarrez, Aurelio; Singh, Gurminder; Buettner, Raymond] Naval Postgrad Sch, Dept Comp Sci, 1 Univ Cirlcle, Monterey, CA 93940 USA. RP Monarrez, A (reprint author), Naval Postgrad Sch, Dept Comp Sci, 1 Univ Cirlcle, Monterey, CA 93940 USA. EM amonarre@nps.edu NR 4 TC 0 Z9 0 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 1877-7058 J9 PROCEDIA ENGINEER PY 2015 VL 107 BP 34 EP 40 DI 10.1016/j.proeng.2015.06.056 PG 7 WC Engineering, Multidisciplinary; Public, Environmental & Occupational Health SC Engineering; Public, Environmental & Occupational Health GA BF2RC UT WOS:000380492100005 ER PT S AU Appling, S Briscoe, E Carpenter, A McCook, L Scott, G Allen, T Buettner, R Oros, C AF Appling, Scott Briscoe, Erica Carpenter, Ann McCook, Leigh Scott, Gerald Allen, Tristan Buettner, Raymond Oros, Carl BE Vidan, A Shoag, D TI Social Media for Situational Awareness: Joint-Interagency Field Experimentation SO HUMANITARIAN TECHNOLOGY: SCIENCE, SYSTEMS AND GLOBAL IMPACT 2015, HUMTECH2015 SE Procedia Engineering LA English DT Proceedings Paper CT Humanitarian Technology: Science, Systems and Global Impact (HumTech) CY MAY 12-14, 2015 CL Boston, MA SP Lockheed Martin Corp DE situational awareness; social media; social computing field experimentation; integrated scenario testing; disaster response; humanitarian assistance; military operations AB Social Media for Situational Awareness (SMSA)-the identification, tracking, and analysis of online social computing data in collaboration with other kinds of sensor data towards the derivation of 'actionable' intelligence, has recently become one of the key focuses of the Joint Interagency Field Experiment (JIFX), a regularly held event developed and facilitated by the Naval Postgraduate School. In this paper we describe: the structure of SMSA experimentation at JIFX, a situational awareness capabilities assessment, the outcomes of a SM shared task, and an integrated-technology scenario focusing on pandemic outbreak. We discuss an outline of potential future avenues for SMSA experimental designs to aid in the assessment and promotion of the use of technology for the derivation of intelligence from non-traditional sources during crises. (C) 2015 The Authors. Published by Elsevier Ltd. C1 [Appling, Scott; Briscoe, Erica; Carpenter, Ann; McCook, Leigh] Georgia Inst Technol, Georgia Tech Res Inst, Atlanta, GA 30332 USA. [Scott, Gerald; Allen, Tristan; Buettner, Raymond; Oros, Carl] Naval Postgrad Sch, Monterey, CA 93943 USA. RP Appling, S (reprint author), Georgia Inst Technol, Georgia Tech Res Inst, Atlanta, GA 30332 USA. EM scott.appling@gtri.gatech.edu; erica.briscoe@gtri.gatech.edu; ann.carpenter@gtri.gatech.edu; leigh.mccook@gtri.gatech.edu; grscott@nps.edu; tmallen@nps.edu; rrbuettn@nps.edu; cloros@nps.edu NR 5 TC 0 Z9 0 U1 1 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 1877-7058 J9 PROCEDIA ENGINEER PY 2015 VL 107 BP 319 EP 324 DI 10.1016/j.proeng.2015.06.087 PG 6 WC Engineering, Multidisciplinary; Public, Environmental & Occupational Health SC Engineering; Public, Environmental & Occupational Health GA BF2RC UT WOS:000380492100036 ER PT J AU Dhanak, M An, E Coulson, R Frankenfield, J Ravenna, S Pugsley, D Valdes, G Venezia, W AF Dhanak, Manhar An, Edgar Coulson, Robert Frankenfield, John Ravenna, Shirley Pugsley, Donald Valdes, George Venezia, William GP IEEE TI AUV-Based Characterization of EMF Emissions from Submerged Power Cables SO OCEANS 2015 - GENOVA LA English DT Proceedings Paper CT Oceans 2015 Genova CY MAY 18-21, 2015 CL Ctr Congressi Genova, Genova, ITALY SP MTS, IEEE, S&T Org CMRE, DLTM, ISME, Evo Log, Eco, Sea Technol, Planet, Springer, Ocean News & Technol, Reg Liguria, Comune Genova, Univ Genova HO Ctr Congressi Genova DE AUV; Electromagnetic Field Surveys; Subsea Cable Emissions; South Florida; Coastal Waters AB AUV-based field measurement and characterization of the electromagnetic field in coastal waters associated with live submerged cables is described. The effort is in support of a program to characterize the EMF emissions associated with submerged power transmission cables from offshore energy harvesting devices to shore and identifying their environmental impact on marine animals. The electric field is measured using a custom 3-axes sensor mounted on a Bluefin 21 AUV and the magnetic field is measured using a Marine Magnetics SeaSPY magnetometer towed from the vehicle so that it is isolated from the AUV machinery. The AUV is equipped with onboard upward (600kHz) and downward (300kHz) looking ADCPs, and a CTD package which simultaneously provide the contextual in-situ oceanographic information, including temperature, salinity, and current velocity in the water column. The electric-field sensor development, its implementation on the AUV, and illustrative at-sea surveys, involving deployment of the EM sensors in shallow waters over a submerged cable with the power in the cable turned off/on, are described. C1 [Dhanak, Manhar; An, Edgar; Coulson, Robert; Frankenfield, John; Ravenna, Shirley] Florida Atlantic Univ, SeaTech, Dania, FL USA. [Pugsley, Donald; Valdes, George; Venezia, William] Naval Surface Warfare Ctr, Carderock Div, Bethesda, MD USA. RP Dhanak, M (reprint author), Florida Atlantic Univ, SeaTech, Dania, FL USA. EM Dhanak@fau.edu NR 18 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4799-8737-5 PY 2015 PG 6 WC Engineering, Marine; Engineering, Electrical & Electronic; Oceanography SC Engineering; Oceanography GA BF2OL UT WOS:000380485500398 ER PT J AU Mcgee, J Catipovic, J Schoenecker, S Swaszek, P AF Mcgee, James Catipovic, Josko Schoenecker, Steven Swaszek, Peter GP IEEE TI Interference Suppression in Congested Undersea Environments SO OCEANS 2015 - GENOVA LA English DT Proceedings Paper CT Oceans 2015 Genova CY MAY 18-21, 2015 CL Ctr Congressi Genova, Genova, ITALY SP MTS, IEEE, S&T Org CMRE, DLTM, ISME, Evo Log, Eco, Sea Technol, Planet, Springer, Ocean News & Technol, Reg Liguria, Comune Genova, Univ Genova HO Ctr Congressi Genova ID OFDM CHANNEL ESTIMATION; IMPULSE NOISE; UNKNOWN INTERFERENCE; SYSTEMS; CANCELLATION; MITIGATION; RECEIVER AB Many acoustic channels suffer from interference which is neither narrowband nor impulsive. This relatively long duration partial band interference can be particularly detrimental to system performance. In operational networks, many "dropped" messages are lost due to partial band interference which corrupts different portions of the received signal depending on the relative position of the interferers, information source and receivers due to the slow speed of propagation. We survey recent work in interference mitigation as background motivation to develop a spatial diversity receiver for use in underwater networks and compare this multi-receiver interference mitigation strategy with a recently developed single receiver interference mitigation algorithm using experimental data collected from the underwater acoustic network at the Atlantic Underwater Test and Evaluation Center. The results indicate that both mitigation strategies are effective: parameterized interference cancellation is most effective at moderate SIRs whereas spatial diversity reconstruction is effective and realizes the most gain at high SIRs. We also apply the parameterized interference cancellation to the problem of estimating mutually interfering waveforms when it is desired to know both time domain signals and find that it effectively extracts both mutually interfering linear frequency modulated (LFM) and orthogonal frequency division multiplexing (OFDM) waveforms. C1 [Mcgee, James; Catipovic, Josko; Schoenecker, Steven] Naval Undersea Warfare Ctr, Newport, RI 02841 USA. [Swaszek, Peter] Univ Rhode Isl, Dept Elect Comp & Biomed Engn, Kingston, RI 02881 USA. RP Mcgee, J (reprint author), Naval Undersea Warfare Ctr, Newport, RI 02841 USA. EM james.a.mcgee@navy.mil; josko.catipovic@navy.mil; steven.schoenecker@navy.mil; swaszek@ele.uri.edu NR 36 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4799-8737-5 PY 2015 PG 8 WC Engineering, Marine; Engineering, Electrical & Electronic; Oceanography SC Engineering; Oceanography GA BF2OL UT WOS:000380485500453 ER PT J AU Menozzi, A Hansen, J Peele, G Snarski, S Merrick, C AF Menozzi, Alberico Hansen, Jesse Peele, Gregory Snarski, Stephen Merrick, Colin GP IEEE TI On the Development of a Framework for Underwater Localization Using All-Source Data SO OCEANS 2015 - GENOVA LA English DT Proceedings Paper CT Oceans 2015 Genova CY MAY 18-21, 2015 CL Ctr Congressi Genova, Genova, ITALY SP MTS, IEEE, S&T Org CMRE, DLTM, ISME, Evo Log, Eco, Sea Technol, Planet, Springer, Ocean News & Technol, Reg Liguria, Comune Genova, Univ Genova HO Ctr Congressi Genova ID BATHYMETRIC SIDESCAN SONAR; NAVIGATION; SLAM AB This paper describes the current state of development of a localization framework with the goal of enabling an autonomous underwater vehicle (AUV) to execute long-range precision-navigation missions where positional resets based on GPS and/or transponders are unfeasible and bathymetric maps of sufficient accuracy are not always available. This framework has three main components: a real-time sonar data processing pipeline providing 3-D point-cloud measurements segmented into objects and underwater terrain; a 3-D synthetic natural environment (SNE) integrating geo-registered data from all available sources; a probabilistic localization method linking the SNE to the sonar processing pipeline and producing a probability map over the space of AUV horizontal positions. The current focus and novel contribution of this work is the specific method of exploitation of FLS 3-D point-cloud and 3-D reference map data, and the design of the corresponding probabilistic measurement model for localization. Initial off-line experiments, using real inwater data for which navigational ground truth is available, show the performance of this measurement model and the promise of the overall approach toward achieving horizontal position resets with a 95% circular error probability (CEP95) of less than 20 m. C1 [Menozzi, Alberico; Peele, Gregory; Snarski, Stephen] Appl Res Associates Inc, Raleigh, NC USA. [Hansen, Jesse; Merrick, Colin] Naval Undersea Warfare Ctr, Newport, RI USA. RP Menozzi, A (reprint author), Appl Res Associates Inc, Raleigh, NC USA. EM amenozzi@ara.com; jesse.hansen@navy.mil 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 BN 978-1-4799-8737-5 PY 2015 PG 10 WC Engineering, Marine; Engineering, Electrical & Electronic; Oceanography SC Engineering; Oceanography GA BF2OL UT WOS:000380485500093 ER PT J AU Yang, YJ Ramp, SR Chiu, CS Reeder, DB Wu, JCH Chen, CF Liang, WD AF Yang, Yiing Jang Ramp, Steven R. Chiu, Ching-Sang Reeder, D. Benjamin Wu, Jeff Chih-Hao Chen, Chi-Fang Liang, Wen-Der GP IEEE TI Observations of Ambient Noises Induced by the Internal Solitary Waves on the Continental Slope of the Northern South China Sea Ambient Noises by ISW in SCS SO OCEANS 2015 - GENOVA LA English DT Proceedings Paper CT Oceans 2015 Genova CY MAY 18-21, 2015 CL Ctr Congressi Genova, Genova, ITALY SP MTS, IEEE, S&T Org CMRE, DLTM, ISME, Evo Log, Eco, Sea Technol, Planet, Springer, Ocean News & Technol, Reg Liguria, Comune Genova, Univ Genova HO Ctr Congressi Genova DE underwater ambient noise; internal solitary wave ID SHALLOW-WATER; PROPAGATION; SOLITONS AB The "Sand Dunes" moored array in the upper slope of the northern South China Sea provided an unprecedented look at internal solitary wave (ISW) arrival patterns and transformations under shoaling as they propagate northwestward passed the sand dunes. The data sets also shown the underwater ambient noise induced by the ISW. The mode-1 depression ISW could generate the surface wave breaking in the convergence zone and produce ocean noises. These ocean noises in high sonic bands would be enhanced in the convergence zone and reduced in the divergence zone due to rough and smooth sea surface conditions, respectively. Besides, the strong horizontal currents induced by internal solitary waves would produce selfnoise in the infra and low sonic bands. In addition, sometime, the acoustic data also show the marine mammal sounds behind the ISW. This result might due to the marine mammals follow the ISWs to prey on fish and squid. C1 [Yang, Yiing Jang] Natl Taiwan Univ, Inst Oceanog, Taipei, Taiwan. [Ramp, Steven R.] Soilton Ocean Serv Inc, Carmel Valley, CA USA. [Chiu, Ching-Sang; Reeder, D. Benjamin] Naval Postgrad Sch, Dept Oceanog, Monterey, CA USA. [Wu, Jeff Chih-Hao; Chen, Chi-Fang] Natl Taiwan Univ, Dept Engn Sci & Ocean Engn, Taipei, Taiwan. [Liang, Wen-Der] Naval Acad, Dept Marine Sci, Kaohsiung, Taiwan. RP Yang, YJ (reprint author), Natl Taiwan Univ, Inst Oceanog, Taipei, Taiwan. EM yjyang67@ntu.edu.tw; sramp@solitonocean.com; chiu@nps.edu; dbreeder@nps.edu; d98525001@ntu.edu.tw; chifang@ntu.edu.tw; liangwd@cna.edu.tw NR 11 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4799-8737-5 PY 2015 PG 4 WC Engineering, Marine; Engineering, Electrical & Electronic; Oceanography SC Engineering; Oceanography GA BF2OL UT WOS:000380485500261 ER PT J AU Phillips, AT Impagliazzo, J AF Phillips, Andrew T. Impagliazzo, John GP IEEE TI Toward an Multidisciplinary Curriculum in Cyberscience SO 2015 FIRST INTERNATIONAL CONFERENCE ON ANTI-CYBERCRIME (ICACC) LA English DT Proceedings Paper CT 2015 First International Conference on Anti-Cybercrime (ICACC) CY NOV 10-12, 2015 CL Riyadh, SAUDI ARABIA SP IEEE DE Cyberscience; cybersecurity; cybercrime AB This conference presentation describes a process for developing a multidisciplinary curriculum in cyberscience. The process presented is a broad-based approach designed to support a four-year undergraduate cyberscience curriculum applicable to diverse institutions of higher learning. C1 [Phillips, Andrew T.] US Naval Acad, Annapolis, MD 21402 USA. [Impagliazzo, John] Hofstra Univ, Comp Sci, Hempstead, NY 11550 USA. RP Phillips, AT (reprint author), US Naval Acad, Annapolis, MD 21402 USA. EM aphillips@usna.edu; John.Impagliazzo@Hofstra.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 978-1-4799-7620-1 PY 2015 BP 172 EP 172 PG 1 WC Computer Science, Hardware & Architecture; Computer Science, Software Engineering SC Computer Science GA BF1KW UT WOS:000380405900025 ER PT J AU Hornberger, E Blunt, SD Higgins, T AF Hornberger, Erik Blunt, Shannon D. Higgins, Thomas GP IEEE TI Partially Constrained Adaptive Beamforming for Super-Resolution at Low SNR SO 2015 IEEE 6TH INTERNATIONAL WORKSHOP ON COMPUTATIONAL ADVANCES IN MULTI-SENSOR ADAPTIVE PROCESSING (CAMSAP) LA English DT Proceedings Paper CT IEEE 6th International Workshop on Computational Advances in Multi-Sensor Adaptive Processing (CAMSAP) CY DEC 13-16, 2015 CL Cancun, MEXICO ID SIGNALS AB The reiterative super-resolution (RISR) algorithm was previously developed to enable adaptive beamforming with as few as one time snapshot, is robust to temporally correlated signals, and accounts for array calibration errors. Here a gain-constrained version (denoted GC-RISR) is derived followed by a partially-constrained version (PC-RISR). It is shown that an interesting trait of the latter is spatial super-resolution at SNR values lower than is typical for adaptive beamforming techniques as a trade-off for requiring more iterations to converge. The PC-RISR formulation is controlled by a selectable parameter that serves a role similar to that of an adaptive step-size which balances between convergence speed and accuracy. C1 [Hornberger, Erik; Blunt, Shannon D.] Univ Kansas, Radar Syst & Remote Sensing Lab RSL, Lawrence, KS 66045 USA. [Higgins, Thomas] US Naval Res Lab, Div Radar, Washington, DC USA. RP Hornberger, E (reprint author), Univ Kansas, Radar Syst & Remote Sensing Lab RSL, Lawrence, KS 66045 USA. 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 BN 978-1-4799-1963-5 PY 2015 BP 129 EP 132 PG 4 WC Engineering, Electrical & Electronic SC Engineering GA BF2JO UT WOS:000380473300037 ER PT J AU Abramovich, YI Antonio, GS AF Abramovich, Yuri I. Antonio, Geoffrey San GP IEEE TI Target Detection Scheme with Optimal Inter-Channel Noncoherent Data Combining SO 2015 IEEE 6TH INTERNATIONAL WORKSHOP ON COMPUTATIONAL ADVANCES IN MULTI-SENSOR ADAPTIVE PROCESSING (CAMSAP) LA English DT Proceedings Paper CT IEEE 6th International Workshop on Computational Advances in Multi-Sensor Adaptive Processing (CAMSAP) CY DEC 13-16, 2015 CL Cancun, MEXICO DE Beamforming; extreme statistics AB This paper introduces a novel non-linear processing technique for reducing the dimensions of a data set without performing hard thresholding while maintaining the detector performance as applied to the original large data set. In particular, the introduced processing technique can be utilized in spatial beamforming, high-range resolution processing, and other scenarios wherein high resolution data must be compressed/compacted to accommodate a lower resolution display and/or processing system. C1 [Abramovich, Yuri I.] WR Syst, Fairfax, VA 22030 USA. [Antonio, Geoffrey San] US Naval Res Lab, Washington, DC 20375 USA. RP Abramovich, YI (reprint author), WR Syst, Fairfax, VA 22030 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 978-1-4799-1963-5 PY 2015 BP 133 EP 136 PG 4 WC Engineering, Electrical & Electronic SC Engineering GA BF2JO UT WOS:000380473300038 ER PT J AU Gattozzi, AL Herbst, JD Hebner, RE Blau, JA Cohn, KR Colson, WB Sylvester, JE Woehrman, MA AF Gattozzi, A. L. Herbst, J. D. Hebner, R. E. Blau, J. A. Cohn, K. R. Colson, W. B. Sylvester, J. E. Woehrman, M. A. GP IEEE TI Power System and Energy Storage Models for Laser Integration on Naval Platforms SO 2015 IEEE ELECTRIC SHIP TECHNOLOGIES SYMPOSIUM (ESTS) LA English DT Proceedings Paper CT IEEE Electric Ship Technologies Symposium (ESTS) CY JUN 21-24, 2015 CL Old Town Alexandria, VI SP US State Off Naval Res, IEEE Power Energy Soc, Powere Elect Soc, Platinum Patrons DRS Tech, Gen Atomics, L-3, Northrop Grumman, Gold Patron ABB, Silver Patron RTDS, US Off Naval Res DE Laser; Laser Integration; Energy Storage; Naval Power Systems AB High power solid state laser systems are being developed for advanced weapons and sensors for a variety of Department of Defense applications including naval surface combatants. The transient power and cooling requirements of these emerging technologies present significant challenges to the electric power distribution and thermal management systems, particularly for applications requiring back fit of the new systems onto existing platforms with limited electric power generation and cooling capacities. The University of Texas Center for Electromechanics (UT-CEM) and the Naval Postgraduate School (NPS) have collaborated in the development of simulation models of ship power systems to evaluate and help guide the integration of pulsed laser loads onto existing ship platforms. Key to the success of these efforts is the definition of a suitable energy storage system to handle the effect of the transient load. This paper reports on the progress of detailed MatLab/Simulink models of a destroyer class ship service electric power distribution system that have been developed to evaluate the performance of battery, flywheel, and capacitor energy storage in support of laser weapons. The models allow the user to develop comparative studies of the three energy storage systems in regard to several relevant metrics that can be used for their discrimination. Examples of some of these results based on the simulations are given. C1 [Gattozzi, A. L.; Herbst, J. D.; Hebner, R. E.] Univ Texas Austin, Ctr Electromech, 10100 Burnet Rd, Austin, TX 78758 USA. [Blau, J. A.; Cohn, K. R.; Colson, W. B.; Sylvester, J. E.; Woehrman, M. A.] Naval Postgrad Sch, Dept Phys, Monterey, CA USA. RP Gattozzi, AL (reprint author), Univ Texas Austin, Ctr Electromech, 10100 Burnet Rd, Austin, TX 78758 USA. EM a.gattozzi@cem.utexas.edu NR 7 TC 0 Z9 0 U1 6 U2 6 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4799-1857-7 PY 2015 BP 173 EP 180 PG 8 WC Engineering, Electrical & Electronic; Engineering, Mechanical SC Engineering GA BF2XM UT WOS:000380507700032 ER PT J AU Stevens, JD Opila, DF Cramer, AM Zivi, EL AF Stevens, John D. Opila, Daniel F. Cramer, Aaron M. Zivi, Edwin L. GP IEEE TI Operational Vignette-based Electric Warship Load Demand SO 2015 IEEE ELECTRIC SHIP TECHNOLOGIES SYMPOSIUM (ESTS) LA English DT Proceedings Paper CT IEEE Electric Ship Technologies Symposium (ESTS) CY JUN 21-24, 2015 CL Old Town Alexandria, VI SP US State Off Naval Res, IEEE Power Energy Soc, Powere Elect Soc, Platinum Patrons DRS Tech, Gen Atomics, L-3, Northrop Grumman, Gold Patron ABB, Silver Patron RTDS, US Off Naval Res DE naval power systems; electric ship design; dynamic loads; stochastic loads AB The design and control of electric warship power systems is a complex, challenging problem and numerous power system architectures, technologies, algorithms, and control schemes have been proposed. Instead of a quantitative assessment of these ideas based on ideal, steady-state conditions, a set of representative operational vignettes that span the entire electric warship mission package is introduced in order to obtain true results. This paper describes a set of realistic test cases that provide load demand dynamics based on a variety of unique scenarios, mission load characteristics, and human-in-the-loop decision-making. Stochastic and deterministic power profiles are established for individual ship systems and mission loads, which are then combined together for a particular scenario. These test cases can be applied to early-stage design trade studies as well as design tool development. For example, various control methods can be benchmarked against the same test cases. In addition to the established test cases, the method used here enables operators to communicate to design engineers how they intend to use the ship (not the other way around). C1 [Stevens, John D.; Opila, Daniel F.] US Naval Acad, Dept Elect & Comp Engn, Annapolis, MD 21402 USA. [Cramer, Aaron M.] Univ Kentucky, Dept Elect & Comp Engn, Lexington, KY USA. [Zivi, Edwin L.] US Naval Acad, Dept Weap & Syst Engn, Annapolis, MD USA. RP Stevens, JD (reprint author), US Naval Acad, Dept Elect & Comp Engn, Annapolis, MD 21402 USA. EM stevens@usna.edu; opila@usna.edu; aaron.cramer@uky.edu; zivi@usna.edu NR 15 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4799-1857-7 PY 2015 BP 213 EP 218 PG 6 WC Engineering, Electrical & Electronic; Engineering, Mechanical SC Engineering GA BF2XM UT WOS:000380507700038 ER PT J AU Langston, J Bogdan, F Hauer, J Schoder, K Steurer, M Dalessandro, D Fikse, T Cherry, J Gonstead, S AF Langston, James Bogdan, Ferenc Hauer, John Schoder, Karl Steurer, Michael Dalessandro, Donald Fikse, Tom Cherry, Jignas Gonstead, Scott GP IEEE TI Megawatt-Scale Power Hardware-in-the-Loop Simulation Testing of a Power Conversion Module for Naval Applications SO 2015 IEEE ELECTRIC SHIP TECHNOLOGIES SYMPOSIUM (ESTS) LA English DT Proceedings Paper CT IEEE Electric Ship Technologies Symposium (ESTS) CY JUN 21-24, 2015 CL Old Town Alexandria, VI SP US State Off Naval Res, IEEE Power Energy Soc, Powere Elect Soc, Platinum Patrons DRS Tech, Gen Atomics, L-3, Northrop Grumman, Gold Patron ABB, Silver Patron RTDS, US Off Naval Res AB In June through October of 2014, power-hardware-in-the-loop (PHIL) simulation testing of a 1.2 MW, 4.16 kV AC / 1 kV DC power conversion module for naval applications was conducted. In these tests, the device-under-test (DUT) was interfaced to a virtual surrounding system that was generally representative of the power system of a future surface combatant. Tests were focused on demonstration of operation and performance of the DUT through dynamic conditions in a realistic environment, collection of data for characterization and validation of models of the DUT, and collection of data for assessment of the accuracy and suitability of the approach for testing future power conversion modules. These tests were the culmination of numerous coordinated efforts over preceding months to identify, implement, and verify the necessary surrounding systems and supporting models, define meaningful test procedures, and develop, implement, and test appropriate controls and protection systems. The tests successfully concluded with a large amount of data of the behavior of the DUT under a wide range of expected system conditions. Moreover, this project identified the need to further develop PHIL interface algorithms such as the damped impedance method to improve accuracy and stability of future PHIL experiments at the megawatt scale. C1 [Langston, James; Bogdan, Ferenc; Hauer, John; Schoder, Karl; Steurer, Michael] Florida State Univ, Ctr Adv Power Syst, Tallahassee, FL 32306 USA. [Dalessandro, Donald] Naval Surface Warfare Ctr, Carderock Div, Philadelphia, PA USA. [Fikse, Tom] BMT Syntek, Arlington, VA USA. [Cherry, Jignas] Cardinal Engn, Annapolis, MD USA. [Gonstead, Scott] DRS Technol, Milwaukee, WI USA. RP Langston, J (reprint author), Florida State Univ, Ctr Adv Power Syst, Tallahassee, FL 32306 USA. 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 978-1-4799-1857-7 PY 2015 BP 268 EP 275 PG 8 WC Engineering, Electrical & Electronic; Engineering, Mechanical SC Engineering GA BF2XM UT WOS:000380507700050 ER PT J AU Doerry, N Amy, J AF Doerry, Norbert Amy, John GP IEEE TI DC Voltage Interface Standards for Naval Applications SO 2015 IEEE ELECTRIC SHIP TECHNOLOGIES SYMPOSIUM (ESTS) LA English DT Proceedings Paper CT IEEE Electric Ship Technologies Symposium (ESTS) CY JUN 21-24, 2015 CL Old Town Alexandria, VI SP US State Off Naval Res, IEEE Power Energy Soc, Powere Elect Soc, Platinum Patrons DRS Tech, Gen Atomics, L-3, Northrop Grumman, Gold Patron ABB, Silver Patron RTDS, US Off Naval Res AB MIL-STD-1399-300 and MIL-STD-1399-680 have established AC voltage interface requirements for U.S. naval surface ship electrical power systems. No such interface standards have been established for DC interfaces on U.S. naval surface ships. This paper provides recommendations for specific standard DC interface voltages for naval surface ship applications. These standard interface voltages are intended to facilitate the development and integration of DC loads. In recommending Interface Standards, the following were considered: Existing commercial and military interface standards should be used to the maximum extent practical. Different standard voltage levels should differ significantly (greater than 25%) Higher voltages enable lower currents, and lighter cables. Standard voltage ratings of available semiconductor devices and insulation ratings should be considered. In addition to nominal voltage levels, power quality requirements and conformance testing requirements are recommended. C1 [Doerry, Norbert; Amy, John] US Navy, Naval Sea Syst Command, Washington, DC 20374 USA. RP Doerry, N (reprint author), US Navy, Naval Sea Syst Command, Washington, DC 20374 USA. EM norbert.doerry@navy.mil; john.amy@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 BN 978-1-4799-1857-7 PY 2015 BP 318 EP 325 PG 8 WC Engineering, Electrical & Electronic; Engineering, Mechanical SC Engineering GA BF2XM UT WOS:000380507700060 ER PT J AU Cramer, AM Liu, X Zhang, YQ Stevens, JD Zivi, EL AF Cramer, Aaron M. Liu, Xiao Zhang, Yuqi Stevens, John D. Zivi, Edwin L. GP IEEE TI Early-Stage Shipboard Power System Simulation of Operational Vignettes for Dependability Assessment SO 2015 IEEE ELECTRIC SHIP TECHNOLOGIES SYMPOSIUM (ESTS) LA English DT Proceedings Paper CT IEEE Electric Ship Technologies Symposium (ESTS) CY JUN 21-24, 2015 CL Old Town Alexandria, VI SP US State Off Naval Res, IEEE Power Energy Soc, Powere Elect Soc, Platinum Patrons DRS Tech, Gen Atomics, L-3, Northrop Grumman, Gold Patron ABB, Silver Patron RTDS, US Off Naval Res DE energy storage; linear programming; military equipment; modeling AB A principle motivation for the development of earlystage shipboard power system simulation techniques is the need to perform time-domain simulation during the early design stage. In particular, there is a need to understand the performance of a candidate system during challenging situations involving dynamic load profiles and disruptive conditions in order to assess the system dependability. An early-stage simulation technique is applied to simulate the performance of a candidate system for given operational vignettes. Using this early-stage approach allows simulations to be performed very quickly, allowing many vignettes to be considered and the overall system dependability to be assessed. C1 [Cramer, Aaron M.; Liu, Xiao; Zhang, Yuqi] Univ Kentucky, Dept Elect & Comp Engn, Lexington, KY 40506 USA. [Stevens, John D.] US Naval Acad, Elect & Comp Engn Dept, Annapolis, MD 21402 USA. [Zivi, Edwin L.] US Naval Acad, Weap & Syst Engn Dept, Annapolis, MD 21402 USA. RP Cramer, AM (reprint author), Univ Kentucky, Dept Elect & Comp Engn, Lexington, KY 40506 USA. 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 978-1-4799-1857-7 PY 2015 BP 382 EP 387 PG 6 WC Engineering, Electrical & Electronic; Engineering, Mechanical SC Engineering GA BF2XM UT WOS:000380507700071 ER PT J AU Huhman, BM Wetz, DA AF Huhman, B. M. Wetz, D. A. GP IEEE TI Progress in the Development of a Battery-based Pulsed Power System SO 2015 IEEE ELECTRIC SHIP TECHNOLOGIES SYMPOSIUM (ESTS) LA English DT Proceedings Paper CT IEEE Electric Ship Technologies Symposium (ESTS) CY JUN 21-24, 2015 CL Old Town Alexandria, VI SP US State Off Naval Res, IEEE Power Energy Soc, Powere Elect Soc, Platinum Patrons DRS Tech, Gen Atomics, L-3, Northrop Grumman, Gold Patron ABB, Silver Patron RTDS, US Off Naval Res DE Pulsed power; batteries; rep-rate ID DIODES AB The development of compact, portable pulsed-power devices is of continuing interest, and recent technological developments such as high-energy-density capacitors, the emergence of SiC high-power devices, and the combined high power and energy density in electrochemical energy storage devices present an opportunity to use these technologies in applications of interest, such as high power lasers, railguns, and microwave systems. Several challenges exist when attempting to integrate these emerging devices into the development of a compact rep-rate pulsed-power system. These include but are not limited to the input power management, DC-DC converter efficiencies, and thermal management. This paper discusses the development of a battery-powered, rep-rate charger for a 60-kJ capacitor bank, and the desire to study the feasibility of such a system, especially the efficiency and reliability of the battery packs. This paper will discuss the system design and results from experiments to date. C1 [Huhman, B. M.] US Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA. [Wetz, D. A.] Univ Texas Arlington, Dept Elect Engn, Arlington, TX 76019 USA. RP Huhman, BM (reprint author), US Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA. NR 18 TC 0 Z9 0 U1 0 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4799-1857-7 PY 2015 BP 441 EP 445 PG 5 WC Engineering, Electrical & Electronic; Engineering, Mechanical SC Engineering GA BF2XM UT WOS:000380507700030 ER PT J AU Kristan, M Matas, J Leonardis, A Felsberg, M Cehovin, L Fernandez, G Vojir, T Hager, G Nebehay, G Pflugfelder, R Gupta, A Bibi, A Lukezic, A Garcia-Martins, A Saffari, A Petrosino, A Montero, AS Varfolomieiev, A Baskurt, A Zhao, BJ Ghanem, B Martinez, B Lee, B Han, B Wang, CH Garcia, C Zhang, CY Schmid, C Tao, DC Kim, D Huang, DF Prokhorov, D Du, DW Yeung, DY Ribeiro, E Khan, FS Porikli, F Bunyak, F Zhu, G Seetharaman, G Kieritz, H Yau, HT Li, HD Qi, HG Bischof, H Possegger, H Lee, H Nam, H Bogun, I Jeong, JC Cho, JI Lee, JY Zhu, JK Shi, JP Li, JT Jia, JY Feng, JY Gao, J Choi, JY Kim, JW Lang, JC Martinez, JM Choi, JW Xing, JL Xue, K Palaniappan, K Lebeda, K Alahari, K Gao, K Yun, KM Wong, KH Luo, L Ma, L Ke, LP Wen, LY Bertinetto, L Pootschi, M Maresca, M Danelljan, M Wen, M Zhang, MD Arens, M Valstar, M Tang, M Chang, MC Khan, MH Fan, NN Wang, NY Miksik, O Torr, PHS Wang, Q Martin-Nieto, R Pelapur, R Bowden, R Laganiere, R Moujtahid, S Hare, S Hadfield, S Lyu, SW Li, SY Zhu, SC Becker, S Duffner, S Hicks, SL Golodetz, S Choi, S Wu, TF Mauthner, T Pridmore, T Hu, WM Hubner, W Wang, XM Li, X Shi, XC Zhao, X Mei, X Yao, SZ Hua, Y Li, Y Lu, Y Li, YZ Chen, ZY Huang, ZH Chen, Z Zhang, Z He, ZY Hong, ZB AF Kristan, Matej Matas, Jiri Leonardis, Ales Felsberg, Michael Cehovin, Luka Fernandez, Gustavo Vojir, Tomas Hager, Gustav Nebehay, Georg Pflugfelder, Roman Gupta, Abhinav Bibi, Adel Lukezic, Alan Garcia-Martins, Alvaro Saffari, Amir Petrosino, Alfredo Montero, Andres Solis Varfolomieiev, Anton Baskurt, Atilla Zhao, Baojun Ghanem, Bernard Martinez, Brais Lee, ByeongJu Han, Bohyung Wang, Chaohui Garcia, Christophe Zhang, Chunyuan Schmid, Cordelia Tao, Dacheng Kim, Daijin Huang, Dafei Prokhorov, Danil Du, Dawei Yeung, Dit-Yan Ribeiro, Eraldo Khan, Fahad Shahbaz Porikli, Fatih Bunyak, Filiz Zhu, Gao Seetharaman, Guna Kieritz, Hilke Yau, Hing Tuen Li, Hongdong Qi, Honggang Bischof, Horst Possegger, Horst Lee, Hyemin Nam, Hyeonseob Bogun, Ivan Jeong, Jae-chan Cho, Jae-il Lee, Jae-Young Zhu, Jianke Shi, Jianping Li, Jiatong Jia, Jiaya Feng, Jiayi Gao, Jin Choi, Jin Young Kim, Ji-Wan Lang, Jochen Martinez, Jose M. Choi, Jongwon Xing, Junliang Xue, Kai Palaniappan, Kannappan Lebeda, Karel Alahari, Karteek Gao, Ke Yun, Kimin Wong, Kin Hong Luo, Lei Ma, Liang Ke, Lipeng Wen, Longyin Bertinetto, Luca Pootschi, Mandieh Maresca, Mario Danelljan, Martin Wen, Mei Zhang, Mengdan Arens, Michael Valstar, Michel Tang, Ming Chang, Ming-Ching Khan, Muhammad Haris Fan, Nana Wang, Naiyan Miksik, Ondrej Torr, Philip H. S. Wang, Qiang Martin-Nieto, Rafael Pelapur, Rengarajan Bowden, Richard Laganiere, Robert Moujtahid, Salma Hare, Sam Hadfield, Simon Lyu, Siwei Li, Siyi Zhu, Song-Chun Becker, Stefan Duffner, Stefan Hicks, Stephen L. Golodetz, Stuart Choi, Sunglok Wu, Tianfu Mauthner, Thomas Pridmore, Tony Hu, Weiming Hubner, Wolfgang Wang, Xiaomeng Li, Xin Shi, Xinchu Zhao, Xu Mei, Xue Yao Shizeng Hua, Yang Li, Yang Lu, Yang Li, Yuezun Chen, Zhaoyun Huang, Zehua Chen, Zhe Zhang, Zhe He, Zhenyu Hong, Zhibin GP IEEE TI The Visual Object Tracking VOT2015 challenge results SO 2015 IEEE INTERNATIONAL CONFERENCE ON COMPUTER VISION WORKSHOP (ICCVW) LA English DT Proceedings Paper CT IEEE International Conference on Computer Vision Workshops CY DEC 11-18, 2015 CL Santiago, CHILE SP CPS, IEEE Comp Soc, amazon, Microsoft, SENSETIME, Baidu, intel, facebook, Adobe, Panasonic, Google, OMRON, blippar, iRobot, HISCENE, nVIDIA, Viscovery, AiCUre, M/Tec ID ADAPTIVE MEAN-SHIFT; NONRIGID OBJECTS; MOTION; FACE AB The Visual Object Tracking challenge 2015, VOT2015, aims at comparing short-term single-object visual trackers that do not apply pre-learned models of object appearance. Results of 62 trackers are presented. The number of tested trackers makes VOT 2015 the largest benchmark on short-term tracking to date. For each participating tracker, a short description is provided in the appendix. Features of the VOT2015 challenge that go beyond its VOT2014 predecessor are: (i) a new VOT2015 dataset twice as large as in VOT2014 with full annotation of targets by rotated bounding boxes and per-frame attribute, (ii) extensions of the VOT2014 evaluation methodology by introduction of a new performance measure. The dataset, the evaluation kit as well as the results are publicly available at the challenge website(1). C1 [Kristan, Matej; Cehovin, Luka; Lukezic, Alan] Univ Ljubljana, Ljubljana, Slovenia. [Matas, Jiri; Vojir, Tomas] Czech Tech Univ, Prague, Czech Republic. [Leonardis, Ales] Univ Birmingham, Birmingham, W Midlands, England. [Felsberg, Michael; Hager, Gustav; Khan, Fahad Shahbaz; Danelljan, Martin] Linkoping Univ, Linkoping, Sweden. [Fernandez, Gustavo; Nebehay, Georg; Pflugfelder, Roman] Austrian Inst Technol, Seibersdorf, Austria. [Gupta, Abhinav; Huang, Zehua] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA. [Bibi, Adel; Ghanem, Bernard] King Abdullah Univ Sci & Technol, Thuwal, Saudi Arabia. [Garcia-Martins, Alvaro; Martinez, Jose M.; Martin-Nieto, Rafael] Univ Autonoma Madrid, E-28049 Madrid, Spain. [Zhang, Zhe] Baidu Corp, Beijing, Peoples R China. [Saffari, Amir] Affectv, London, England. [Wang, Naiyan] TuSimple LLC, San Diego, CA USA. [Petrosino, Alfredo; Maresca, Mario] Parthenope Univ Naples, Naples, Italy. [Montero, Andres Solis; Lang, Jochen; Laganiere, Robert] Univ Ottawa, Ottawa, ON K1N 6N5, Canada. [Varfolomieiev, Anton] Natl Tech Univ Ukraine, Kiev, Ukraine. [Baskurt, Atilla; Moujtahid, Salma; Duffner, Stefan] Univ Lyon, Lyon, France. [Zhao, Baojun; Li, Jiatong] Beijing Inst Technol, Beijing, Peoples R China. [Martinez, Brais; Valstar, Michel; Khan, Muhammad Haris; Pridmore, Tony; Wang, Xiaomeng] Univ Nottingham, Nottingham, England. [Lee, ByeongJu; Choi, Jin Young; Choi, Jongwon; Yun, Kimin] Seoul Natl Univ, Seoul, South Korea. [Han, Bohyung; Kim, Daijin; Lee, Hyemin; Nam, Hyeonseob] POSTECH, Pohang, South Korea. [Wang, Chaohui] Univ Paris Est, Paris, France. [Garcia, Christophe; Duffner, Stefan] LIRIS, Lyon, France. [Zhang, Chunyuan; Huang, Dafei; Luo, Lei; Wen, Mei; Chen, Zhaoyun] Natl Univ Def Technol, Changsha, Hunan, Peoples R China. [Zhang, Chunyuan; Huang, Dafei; Wen, Mei; Chen, Zhaoyun] Natl Key Lab Parallel & Distributed Proc, Changsha, Hunan, Peoples R China. [Schmid, Cordelia; Alahari, Karteek; Hua, Yang] INRIA Grenoble Rhone Alpes, Grenoble, France. [Tao, Dacheng; Li, Jiatong; Chen, Zhe; Hong, Zhibin] Univ Technol Sydney, Sydney, NSW, Australia. [Prokhorov, Danil; Mei, Xue] Toyota Res Inst, Toyota, Japan. [Du, Dawei; Qi, Honggang; Ke, Lipeng; Wen, Longyin; Chang, Ming-Ching; Lyu, Siwei; Li, Yuezun] SUNY Albany, Albany, NY USA. [Du, Dawei; Qi, Honggang; Ke, Lipeng] Chinese Acad Sci, SCCE, Beijing, Peoples R China. [Yeung, Dit-Yan; Wang, Naiyan; Li, Siyi] Hong Kong Univ Sci & Technol, Hong Kong, Hong Kong, Peoples R China. [Ribeiro, Eraldo; Bogun, Ivan] Florida Inst Technol, Melbourne, FL USA. [Porikli, Fatih; Zhu, Gao; Li, Hongdong] Australian Natl Univ, Canberra, ACT 0200, Australia. [Porikli, Fatih] NICTA, Sydney, NSW, Australia. [Bunyak, Filiz; Palaniappan, Kannappan; Gao, Ke; Pootschi, Mandieh; Pelapur, Rengarajan; Yao Shizeng] Univ Missouri, Columbia, MO 65211 USA. [Seetharaman, Guna] Naval Res Lab, Washington, DC 20375 USA. [Xue, Kai; Ma, Liang] Harbin Engn Univ, Harbin, Peoples R China. [Kieritz, Hilke; Arens, Michael; Becker, Stefan; Hubner, Wolfgang] Fraunhofer IOSB, Karlsruhe, Germany. [Yau, Hing Tuen; Wong, Kin Hong] Chinese Univ Hong Kong, Hong Kong, Hong Kong, Peoples R China. [Li, Hongdong] ARC Ctr Excellence Robot Vis, Brisbane, Qld, Australia. [Bischof, Horst; Possegger, Horst; Mauthner, Thomas] Graz Univ Technol, Graz, Austria. [Jeong, Jae-chan; Cho, Jae-il; Lee, Jae-Young; Kim, Ji-Wan; Choi, Sunglok] Elect & Telecommun Res Inst, Daejeon, South Korea. [Zhu, Jianke; Li, Yang] Zhejiang Univ, Hangzhou, Zhejiang, Peoples R China. [Shi, Jianping; Jia, Jiaya] CUHK, Hong Kong, Hong Kong, Peoples R China. [Feng, Jiayi; Gao, Jin; Xing, Junliang; Zhang, Mengdan; Tang, Ming; Wang, Qiang; Hu, Weiming; Shi, Xinchu; Zhao, Xu] Chinese Acad Sci, Inst Automat, Beijing, Peoples R China. [Lebeda, Karel; Bowden, Richard; Hadfield, Simon] Univ Surrey, Guildford GU2 5XH, Surrey, England. [Bertinetto, Luca; Miksik, Ondrej; Torr, Philip H. S.; Hicks, Stephen L.; Golodetz, Stuart] Univ Oxford, Oxford OX1 2JD, England. [Hare, Sam] Obvious Engn, London, England. [Fan, Nana; Li, Xin; He, Zhenyu] Harbin Inst Technol, Harbin, Peoples R China. RP Kristan, M (reprint author), Univ Ljubljana, Ljubljana, Slovenia. OI Cehovin, Luka/0000-0003-2823-272X NR 86 TC 2 Z9 3 U1 6 U2 6 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-0-7695-5720-5 PY 2015 BP 564 EP 586 DI 10.1109/ICCVW.2015.79 PG 23 WC Computer Science, Artificial Intelligence; Engineering, Electrical & Electronic SC Computer Science; Engineering GA BF1TD UT WOS:000380434700070 ER PT J AU Thissell, WR Czajkowski, R Schrenk, F Selway, T Ries, AJ Patel, S McDermott, PL Moten, R Rudnicki, R Seetharaman, G Ersoy, I Palaniappan, K AF Thissell, William R. Czajkowski, Robert Schrenk, Frank Selway, Timothy Ries, Anthony J. Patel, Shamoli McDermott, Patricia L. Moten, Rod Rudnicki, Ron Seetharaman, Guna Ersoy, Ilker Palaniappan, Kannappan GP IEEE TI A Scalable Architecture for Operational FMV Exploitation SO 2015 IEEE INTERNATIONAL CONFERENCE ON COMPUTER VISION WORKSHOP (ICCVW) LA English DT Proceedings Paper CT IEEE International Conference on Computer Vision Workshops CY DEC 11-18, 2015 CL santigo, CHILE SP CPS, IEEE Comp Soc, amazon, Microsoft, SENSETIME, Baidu, intel, facebook, Adobe, Panasonic, Google, OMRON, blippar, iRobot, HISCENE, nVIDIA, Viscqvery, AiCUre, M/Tec ID EEG AB A scalable open systems and standards derived software ecosystem is described for computer vision analytics (CVA) assisted exploitation of full motion video (FMV). The ecosystem, referred to as the Advanced Video Activity Analytics (AVAA), has two instantiations, one for size, weight, and power (SWAP) constrained conditions, and the other for large to massive cloud based configurations. The architecture is designed to meet operational analyst requirements to increase their productivity and accuracy for exploiting FMV using local cluster or scalable cloud-based computing resources. CVAs are encapsulated within a software plug-in architecture and FMV processing pipelines are constructed by combining these plug-ins to accomplish analytical tasks and manage provenance of processing history. An example pipeline for real-time motion detection and moving object characterization using the flux tensor approach is presented. An example video ingest experiment is described. Quantitative and qualitative methods for human factors engineering (HFE) assessment to evaluate cognitive loads for alternative work flow design choices are discussed. This HFE process is used for validating that an AVAA system instantiation with candidate workflow pipelines meets CVA assisted FMV exploitation operational goals for specific analyst workflows. AVAA offers a new framework for video understanding at scale for large enterprise applications in the government and commercial sectors. C1 [Thissell, William R.; Schrenk, Frank; Selway, Timothy] Chenega Tech Innovat, Lorton, VA 22079 USA. [Czajkowski, Robert] US Army Intelligence & Informat Warfare Directora, Aberdeen Proving Ground, MD USA. [Ries, Anthony J.] US Army Res Lab, Aberdeen Proving Ground, MD USA. [McDermott, Patricia L.] Alion Sci & Technol, Boulder, CO USA. [Moten, Rod] DataNova Sci, Baltimore, MD USA. [Rudnicki, Ron] CUBRC Inc, Buffalo, NY USA. [Seetharaman, Guna] Naval Res Lab, Washington, DC 20375 USA. [Ersoy, Ilker; Palaniappan, Kannappan] Univ Missouri, Dept Comp Sci, Columbia, MO USA. RP Thissell, WR (reprint author), Chenega Tech Innovat, Lorton, VA 22079 USA. EM william.thissell@chenegati.com; mail@shamoli.org RI Ersoy, Ilker/N-2116-2016 OI Ersoy, Ilker/0000-0003-2650-4496 NR 21 TC 1 Z9 1 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-0-7695-5720-5 PY 2015 BP 1062 EP 1070 DI 10.1109/ICCVW.2015.139 PG 9 WC Computer Science, Artificial Intelligence; Engineering, Electrical & Electronic SC Computer Science; Engineering GA BF1TD UT WOS:000380434700129 ER PT J AU AliAkbarpour, H Palaniappan, K Seetharaman, G AF AliAkbarpour, Hadi Palaniappan, Kannappan Seetharaman, Guna GP IEEE TI Fast Structure from Motion for Sequential and Wide Area Motion Imagery SO 2015 IEEE INTERNATIONAL CONFERENCE ON COMPUTER VISION WORKSHOP (ICCVW) LA English DT Proceedings Paper CT IEEE International Conference on Computer Vision Workshops CY DEC 11-18, 2015 CL santigo, CHILE SP CPS, IEEE Comp Soc, amazon, Microsoft, SENSETIME, Baidu, intel, facebook, Adobe, Panasonic, Google, OMRON, blippar, iRobot, HISCENE, nVIDIA, Viscqvery, AiCUre, M/Tec ID INTERNET PHOTO COLLECTIONS; ORIENTATION AB We present a fast and efficient Structure-from-Motion (SfM) pipeline for refinement of camera parameters and 3D scene reconstruction given initial noisy camera metadata measurements. Examples include aerial Wide Area Motion Imagery (WAMI) which is typically acquired in a circular trajectory and other sequentially ordered multiview stereo imagery like Middlebury [46], Fountain [50] or body-worn videos [27]. Image frames are assumed (partially) ordered with approximate camera position and orientation information available from (imprecise) IMU and GPS sensors. In the proposed BA4S pipeline the noisy camera parameters or poses are directly used in a fast Bundle Adjustment (BA) optimization. Since the sequential ordering of the cameras is known, consecutive frame-to-frame matching is used to find a set of feature correspondences for the triangulation step of SfM. These putative correspondences are directly used in the BA optimization without any early-stage filtering (i.e. no RANSAC) using a statistical robust error function based on co-visibility, to deal with outliers (mismatches), which significantly speeds up our SfM pipeline by more than 100 times compared to VisualSfM. C1 [AliAkbarpour, Hadi; Palaniappan, Kannappan] Univ Missouri, Dept Comp Sci, Columbia, MO 65211 USA. [Seetharaman, Guna] Naval Res Lab, Adv Comp Concepts, Washing, DC USA. RP AliAkbarpour, H (reprint author), Univ Missouri, Dept Comp Sci, Columbia, MO 65211 USA. EM hd.akbarpour@gmail.com; palaniappank@missouri.edu; guna@ieee.org NR 55 TC 1 Z9 1 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-0-7695-5720-5 PY 2015 BP 1086 EP 1093 PG 8 WC Computer Science, Artificial Intelligence; Engineering, Electrical & Electronic SC Computer Science; Engineering GA BF1TD UT WOS:000380434700132 ER PT J AU Ren, QG Bai, L Biswas, S Ferrese, F Dong, Q AF Ren, Qiangguo Bai, Li Biswas, Saroj Ferrese, Frank Dong, Qing GP IEEE TI Demand-supply Balancing using Multi-agent System for Bus-oriented Microgrids SO 2015 RESILIENCE WEEK (RSW) LA English DT Proceedings Paper CT Resilience Week (RWS) CY AUG 18-20, 2015 CL Philadelphia, PA SP INL, IEEE, IEEE Ind Elect Soc IES, Drexel Univ, Temple Univ, Univ of Penn, Florida Inst of Technol, The Ohio State Univ, Idaho State Univ DE Demand-supply Balancing; Multi-agent System ID ECONOMIC-DISPATCH AB To balance demand and supply in a microgrid can be considered as a demand-supply balancing problem, and it can be solved in either a static way or a dynamic way. In static algorithms knowledge about the system is known ahead of time. The connection of load and generator is made at the designing phase. A demand-supply balancing algorithm using the knowledge of system state at runtime has potentials of performing better than static algorithms. Demand-supply balancing problem is a large optimization problem with many variables for consumption or generation power flow at connected buses. We developed a market-based multi-agent system solving the problem in a decentralized way. Our approach is iterative with a fixed number of inter-agent communication steps. Consumer agents exchange simple messages with producers in the power network and then solve their own optimization problem by maximizing their own benefits. It has been shown that this approach converges to a solution when the agents' objectives are achieved without a global coordinator. We have simulated different scaled bus-oriented microgrids and the simulation results show that the performance of the approach is promising. C1 [Ren, Qiangguo; Bai, Li; Biswas, Saroj] Temple Univ, Coll Engn, Elect & Comp Engn, Philadelphia, PA 19122 USA. [Ferrese, Frank; Dong, Qing] Naval Surface Warfare Ctr, Carderock Div, Philadelphia, PA USA. RP Ren, QG (reprint author), Temple Univ, Coll Engn, Elect & Comp Engn, Philadelphia, PA 19122 USA. EM lbai@temple.edu; frank.ferrese@gmail.com NR 21 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4799-8594-4 PY 2015 BP 35 EP 42 PG 8 WC Engineering, Electrical & Electronic SC Engineering GA BF2BX UT WOS:000380454100006 ER PT J AU Sydney, N Sofge, D AF Sydney, Nitin Sofge, Donald GP IEEE TI Distributed Information-Theoretic Target Detection Using Physics-Inspired Motion Coordination SO 2015 RESILIENCE WEEK (RSW) LA English DT Proceedings Paper CT Resilience Week (RWS) CY AUG 18-20, 2015 CL Philadelphia, PA SP INL, IEEE, IEEE Ind Elect Soc IES, Drexel Univ, Temple Univ, Univ of Penn, Florida Inst of Technol, The Ohio State Univ, Idaho State Univ AB In this paper we describe a distributed, information theoretic motion planning strategy for multi-agent target detection. Agents assimilate measurements into a likelihood-ratio tracker, which provides a probability distribution for potential target locations. Information from other agents is fused with the local agents' probability density using an Information Weighted Consensus Filter when in communication range. Each agent uses a physics-inspired motion planning strategy to reactively cover the domain and informatively gather measurements based on the posterior of the likelihood ratio tracker. The proposed strategy produces emergent behavior that optimally collects information about the environment in a reactive and scalable manner that is resilient to communication drop outs. The algorithm is tested in simulation to verify the performance. C1 [Sydney, Nitin] Univ Maryland, Dept Aerosp Engn, College Pk, MD 20742 USA. [Sofge, Donald] Naval Res Lab, Washington, DC 20375 USA. RP Sydney, N (reprint author), Univ Maryland, Dept Aerosp Engn, College Pk, MD 20742 USA. EM nitin.sydney.ctr@nrl.navy.mil; donald.sofge@nrl.navy.mil NR 15 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4799-8594-4 PY 2015 BP 191 EP 194 PG 4 WC Engineering, Electrical & Electronic SC Engineering GA BF2BX UT WOS:000380454100030 ER PT J AU Uddin, MA Singh, AK Daniels, KM Chandrashekhar, MVS Koley, G AF Uddin, M. A. Singh, A. K. Daniels, K. M. Chandrashekhar, M. V. S. Koley, G. GP IEEE TI IMPEDANCE SPECTROSCOPIC ANALYSIS OF FUNCTIONALIZED GRAPHENE/SILICON SCHOTTKY DIODE SENSOR SO 2015 TRANSDUCERS - 2015 18TH INTERNATIONAL CONFERENCE ON SOLID-STATE SENSORS, ACTUATORS AND MICROSYSTEMS (TRANSDUCERS) LA English DT Proceedings Paper CT 18th International Conference on Solid-State Sensors, Actuators and Microsystems (TRANSDUCERS) CY JUN 21-25, 2015 CL Anchorage, AK SP TRF, IEEE, Elect Devices Soc DE Gas Sensor; Graphene/Si; Schottky Diode Sensor; Impedance Spectroscopy; Metal Nanoparticle Functionalization AB The sensor response of Functionalized Graphene chemiresistor and Graphene/p-Si Schottky Diode has been analyzed by DC amperometric measurement and AC impedance spectroscopy (IS) for the first time. The diode sensor exhibited more than one order higher sensitivity compared to the chemiresistor sensor for both pristine and functionalized condition. Considering only diode senor, Pt nanoparticle functionalization enhanced its performance by 4 times for NH3 exposure. To understand the diode sensing mechanism, the AC IS responses of both the sensors was analyzed using an equivalent circuit model, and the extracted equivalent circuit parameters at different conditions has been evaluated. C1 [Uddin, M. A.; Singh, A. K.; Chandrashekhar, M. V. S.; Koley, G.] Univ South Carolina, Dept Elect Engn, Columbia, SC 29208 USA. [Daniels, K. M.] Naval Res Lab, Washington, DC 20375 USA. [Koley, G.] Clemson Univ, Dept Elect & Comp Engn, Clemson, SC USA. RP Koley, G (reprint author), Univ South Carolina, Dept Elect Engn, Columbia, SC 29208 USA. EM gkoley@clemson.edu NR 5 TC 0 Z9 0 U1 3 U2 3 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4799-8955-3 PY 2015 BP 1381 EP 1384 PG 4 WC Engineering, Electrical & Electronic; Instruments & Instrumentation SC Engineering; Instruments & Instrumentation GA BF2EU UT WOS:000380461400344 ER PT S AU Pal, BP Barh, A Ghosh, S Varshney, RK Sanghera, J Shaw, LB Aggarwal, ID AF Pal, Bishnu P. Barh, A. Ghosh, S. Varshney, R. K. Sanghera, J. Shaw, L. B. Aggarwal, I. D. BE Lakshminarayanan, V Bhattacharya, I TI Specialty Optical Fibers for Mid-IR Photonics SO ADVANCES IN OPTICAL SCIENCE AND ENGINEERING SE Springer Proceedings in Physics LA English DT Proceedings Paper CT 1st International Conference on Opto-Electronics and Applied Optics (IEM OPTRONIX) CY DEC 16-17, 2014 CL Salt Lake City, INDIA SP Inst Engn & Management, Dept Elect & Commun ID DESIGN AB We present chalcogenide (Ch) glass-based all-fiber application-specific microstructured optical fibers (MOFs)-based devices like all-fiber efficient discrete and broad-band light sources as well as fibers for distortion free high power light guidance in the mid-IR spectral regime. For new source generation, nonlinearities and dispersion of index guided Ch-MOFs were suitably tailored through structural optimization, while for high power guidance, an ultra large mode area fiber design and a second design for distortion free parabolic pulse generation will be described. C1 [Pal, Bishnu P.] Mahindra Ecole Cent, Sch Nat Sci, Hyderabad 500043, Andhra Pradesh, India. [Barh, A.; Varshney, R. K.] Indian Inst Technol Delhi, Dept Phys, New Delhi 110016, India. [Ghosh, S.] Univ Calcutta, INSPIRE Fac, Inst Radio Phys & Elect, Kolkata 700009, India. [Sanghera, J.; Shaw, L. B.] US Navy, Res Lab, Washington, DC 20375 USA. [Aggarwal, I. D.] Univ N Carolina, Dept Phys, Charlotte, NC 28223 USA. RP Pal, BP (reprint author), Mahindra Ecole Cent, Sch Nat Sci, Hyderabad 500043, Andhra Pradesh, India. EM bishnu.pal@mechyd.edu.in NR 7 TC 0 Z9 0 U1 2 U2 2 PU SPRINGER-VERLAG BERLIN PI BERLIN PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY SN 0930-8989 BN 978-81-322-2367-2; 978-81-322-2366-5 J9 SPRINGER PROC PHYS PY 2015 VL 166 BP 13 EP 16 DI 10.1007/978-81-322-2367-2_3 PG 4 WC Optics; Physics, Applied SC Optics; Physics GA BF3MP UT WOS:000380557200003 ER PT B AU Hassler, E Montgomery, DC Silvestrini, RT AF Hassler, Edgar Montgomery, Douglas C. Silvestrini, Rachel T. BE Knoth, S Schmid, W TI Bayesian D-Optimal Design Issues for Binomial Generalized Linear Model Screening Designs SO FRONTIERS IN STATISTICAL QUALITY CONTROL 11 LA English DT Proceedings Paper CT XIth International Workshop on Intelligent Statistical Quality Control CY AUG 20-23, 2013 CL Sydney, AUSTRALIA DE Challenger data set; Confidence intervals; Non-linear designs ID INTERVAL ESTIMATION; UNCERTAINTY; PROPORTION; ROBUST AB Bayesian D-optimal designs have become computationally feasible to construct for simple prior distributions. Some parameter values give rise to models that have little utility to the practitioner for effect screening. For some generalized linear models such as the binomial, inclusion of such models can cause the optimal design to spread out toward the boundary of the design space. This can reduce the D-efficiency of the design over much of the parameter space and result in the Bayesian D-optimal criterion's divergence from the concerns of a practitioner designing a screening experiment. C1 [Hassler, Edgar; Montgomery, Douglas C.] Arizona State Univ, Tempe, AZ 85281 USA. [Silvestrini, Rachel T.] Naval Postgrad Sch, Monterey, CA USA. RP Hassler, E (reprint author), Arizona State Univ, Tempe, AZ 85281 USA. EM ehassler@asu.edu; doug.montgomery@asu.edu; rtsilves@nps.edu NR 24 TC 0 Z9 0 U1 2 U2 2 PU SPRINGER INT PUBLISHING AG PI CHAM PA GEWERBESTRASSE 11, CHAM, CH-6330, SWITZERLAND BN 978-3-319-12355-4; 978-3-319-12354-7 PY 2015 BP 337 EP 353 DI 10.1007/978-3-319-12355-4_20 PG 17 WC Mathematics; Statistics & Probability SC Mathematics GA BF3ID UT WOS:000380545300020 ER PT S AU Levina, GV Montgomery, MT AF Levina, Galina V. Montgomery, Michael T. BE Huang, N TI When will cyclogenesis commence given a favorable tropical environment? SO IUTAM SYMPOSIUM ON THE DYNAMICS OF EXTREME EVENTS INFLUENCED BY CLIMATE CHANGE (2013) SE Procedia IUTAM LA English DT Proceedings Paper CT IUTAM Symposium on the Dynamics of Extreme Events Influenced by Climate Change CY SEP 23-25, 2015 CL Lanzhou Univ, Lanzhou, PEOPLES R CHINA SP Natl Nat Sci Fdn China HO Lanzhou Univ DE Tropical cyclogenesis; moist-convective atmospheric turbulence; helical self-organization; vortex dynamo; numerical diagnosis ID HELICITY; TURBULENCE; CYCLONES; GENESIS; TOWERS AB A numerical diagnosis of tropical cyclogenesis in a quiescent, rotating environment is presented to suggest an answer to the above question. Our research approach employs near-cloud-resolving numerical simulations to quantitatively analyze helical self-organization of moist-convective atmospheric turbulence. The simulations permit a diagnosis of cyclogenesis when the primary and secondary circulations in a forming hurricane vortex become linked by special convective coherent structures - Vortical Hot Towers (VHTs). The VHTs are argued to be intrinsic elements of the turbulent vortex dynamo in the tropical atmosphere of the Earth. It is discussed how the generated linkage makes the nascent vortex an integral helical system, supporting a positive feedback between the circulations. The feedback is sustained by only modest fluxes of latent heat from the underlying ocean, convective instability and vortical convection. The feedback indicates a release of potential energy that is converted into kinetic energy of developing large-scale helical vortex. Energy exchange between the primary and secondary circulation and their further mutual intensification is inferred from the numerical experiments. (C) 2015 Published by Elsevier B.V. C1 [Levina, Galina V.] Russian Acad Sci, Space Res Inst, 84-32 Profsoyuznaya Str, Moscow 117997, Russia. [Montgomery, Michael T.] Naval Postgrad Sch, Monterey, CA 93943 USA. RP Levina, GV (reprint author), Russian Acad Sci, Space Res Inst, 84-32 Profsoyuznaya Str, Moscow 117997, Russia. EM levina@iki.rssi.ru NR 31 TC 0 Z9 0 U1 1 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 2210-9838 J9 PROC IUTAM PY 2015 VL 17 BP 59 EP 68 DI 10.1016/j.piutam.2015.06.010 PG 10 WC Meteorology & Atmospheric Sciences; Physics, Applied SC Meteorology & Atmospheric Sciences; Physics GA BF2UF UT WOS:000380500500008 ER PT J AU Khachatrian, A Roche, NJH Buchner, SP Koehler, AD Greenlee, JD Anderson, TJ Warner, JH McMorrow, D AF Khachatrian, Ani Roche, Nicolas J-H. Buchner, Stephen P. Koehler, Andrew D. Greenlee, Jordan D. Anderson, Travis J. Warner, Jeffrey H. McMorrow, Dale GP IEEE TI UV Single-Photon Absorption Single-Event Transient Testing of Pristine and Irradiated AlGaN/GaN HEMTs SO 2015 15TH EUROPEAN CONFERENCE ON RADIATION AND ITS EFFECTS ON COMPONENTS AND SYSTEMS (RADECS) LA English DT Proceedings Paper CT 2015 15th European Conference on Radiation and Its Effects on Components and Systems (RADECS) CY SEP 14-18, 2015 CL Moscow, RUSSIA SP IEEE, United Rock Space Corp, Inst Space Device Engn, Joint Inst Nucl Res, China Aerosp Components Eng Ctr, Specialized Elect Systems, Res Inst Sci Instruments, Sci Prod Ctr GRANAT, Sci Prod Ctr EITest, Vostok Co, Aerosp Sci Res Test Mfg Ass, RNII Electronstandart, Conseil Europeen Rech Nucl, EHO ID CHARGE COLLECTION AB Carrier injection by single photon absorption using ultraviolet optical pulses is used to investigate single-event transients in pristine and proton-irradiated AlGaN/GaN HEMTs. The resulting transient shape and amplitude depends strongly on the specific location of the injected carriers, and varies with changes in gate and drain bias. C1 [Khachatrian, Ani] Sotera Def Solut, Herndon, VA 20171 USA. [Khachatrian, Ani; Roche, Nicolas J-H.; Buchner, Stephen P.; Koehler, Andrew D.; Greenlee, Jordan D.; Anderson, Travis J.; Warner, Jeffrey H.; McMorrow, Dale] US Naval Res Lab, Washington, DC 20375 USA. [Roche, Nicolas J-H.] George Washington Univ, Washington, DC 20052 USA. RP Khachatrian, A (reprint author), Sotera Def Solut, Herndon, VA 20171 USA. EM ani.khachatrian.ctr@nrl.navy.mil; nicolas.roche.ctr.fr@nrl.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 BN 978-1-5090-0232-0 PY 2015 PG 4 WC Engineering, Electrical & Electronic; Nuclear Science & Technology SC Engineering; Nuclear Science & Technology GA BF1KE UT WOS:000380404200119 ER PT J AU Bello, P Licato, J Bringsjord, S AF Bello, Paul Licato, John Bringsjord, Selmer GP IEEE TI Constraints on Freely Chosen Action for Moral Robots: Consciousness and Control SO 2015 24TH IEEE INTERNATIONAL SYMPOSIUM ON ROBOT AND HUMAN INTERACTIVE COMMUNICATION (RO-MAN) LA English DT Proceedings Paper CT 24th IEEE International Symposium on Robot and Human Interactive Communication (RO-MAN) CY AUG 31-SEP 04, 2015 CL Kobe, JAPAN SP IEEE, Robot Soc Japan, Korea Robot Soc, IEEE Robot & Automat Soc ID LOGIC C1 [Bello, Paul] Naval Res Lab, Naval Ctr Appl Res Artificial Intelligence, Washington, DC 20375 USA. [Licato, John; Bringsjord, Selmer] Rensselaer Polytech Inst, Rensselaer AI & Reasoning RAIR Lab, Troy, NY 12180 USA. [Licato, John; Bringsjord, Selmer] Rensselaer Polytech Inst, Dept Comp Sci, Troy, NY 12180 USA. [Licato, John; Bringsjord, Selmer] Rensselaer Polytech Inst, Dept Cognit Sci, Troy, NY 12180 USA. RP Bello, P (reprint author), Naval Res Lab, Naval Ctr Appl Res Artificial Intelligence, Washington, DC 20375 USA. EM paul.bello@nrl.navy.mil NR 22 TC 1 Z9 1 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4673-6704-2 PY 2015 BP 505 EP 510 PG 6 WC Computer Science, Cybernetics; Robotics SC Computer Science; Robotics GA BF1GF UT WOS:000380393600085 ER PT J AU Ganguli, G Crabtree, C Mithaiwala, M AF Ganguli, G. Crabtree, C. Mithaiwala, M. GP IEEE TI WEAK TURBULENCE IN RADIATION BELTS SO 2015 42ND IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCES (ICOPS) LA English DT Meeting Abstract CT IEEE International Conference on Plasma Sciences (ICOPS) CY MAY 24-28, 2015 CL Belek, TURKEY SP IEEE NPSS, IEEE, PLAZAMATEK C1 [Ganguli, G.; Crabtree, C.; Mithaiwala, M.] Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4799-6974-6 PY 2015 PG 1 WC Physics, Fluids & Plasmas SC Physics GA BF2ND UT WOS:000380482200001 ER PT J AU Papeer, J Henis, Z Botton, M Zigler, A Gordon, D AF Papeer, J. Henis, Z. Botton, M. Zigler, A. Gordon, D. GP IEEE TI MICROWAVE DIAGNOSTICS OF PLASMA FILAMENTS LEFT IN THE WAKE OF HIGH POWER FEMTOSECOND LASER PULSE SO 2015 42ND IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCES (ICOPS) LA English DT Meeting Abstract CT IEEE International Conference on Plasma Sciences (ICOPS) CY MAY 24-28, 2015 CL Belek, TURKEY SP IEEE NPSS, IEEE, PLAZAMATEK C1 [Papeer, J.; Henis, Z.; Botton, M.; Zigler, A.] Hebrew Univ Jerusalem, Racah Inst Phys, IL-91904 Jerusalem, Israel. [Gordon, D.] Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA. 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 978-1-4799-6974-6 PY 2015 PG 1 WC Physics, Fluids & Plasmas SC Physics GA BF2ND UT WOS:000380482200285 ER PT J AU Qi, N De Grouchy, P Potter, W Banasek, J Engelbrecht, J Atoyan, L Cahill, AD Greenly, JB Hoyt, CL Pikuz, SA Shelkovenko, TA Hammer, DA Kusse, BR Chong, YK Giuliani, J Ouart, N Thornhill, W Kroupp, E Fisher, A Maron, Y AF Qi, N. De Grouchy, P. Potter, W. Banasek, J. Engelbrecht, J. Atoyan, L. Cahill, A. D. Greenly, J. B. Hoyt, C. L. Pikuz, S. A. Shelkovenko, T. A. Hammer, D. A. Kusse, B. R. Chong, Y. K. Giuliani, J. Ouart, N. Thornhill, W. Kroupp, E. Fisher, A. Maron, Y. GP IEEE TI Neon and Argon Multi-Nozzle Gas Puff Z-Pinch Studies on COBRA SO 2015 42ND IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCES (ICOPS) LA English DT Meeting Abstract CT IEEE International Conference on Plasma Sciences (ICOPS) CY MAY 24-28, 2015 CL Belek, TURKEY SP IEEE NPSS, IEEE, PLAZAMATEK C1 [Qi, N.; De Grouchy, P.; Potter, W.; Banasek, J.; Engelbrecht, J.; Atoyan, L.; Cahill, A. D.; Greenly, J. B.; Hoyt, C. L.; Pikuz, S. A.; Shelkovenko, T. A.; Hammer, D. A.; Kusse, B. R.] Cornell Univ, Plasma Studies Lab, Ithaca, NY 14853 USA. [Chong, Y. K.; Giuliani, J.; Ouart, N.; Thornhill, W.] Naval Res Lab, Washington, DC 20375 USA. [Kroupp, E.; Fisher, A.; Maron, Y.] Weizmann Inst Sci, Rehovot, Israel. RI Shelkovenko, Tatiana/M-8254-2015; Pikuz, Sergey/M-8231-2015 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 BN 978-1-4799-6974-6 PY 2015 PG 1 WC Physics, Fluids & Plasmas SC Physics GA BF2ND UT WOS:000380482200093 ER PT J AU Rosenzweig, G Kroupp, E Starobinets, A Fisher, A Maron, Y Strauss, HR Giuliani, JL Thornhill, JW Velikovich, AL AF Rosenzweig, Guy Kroupp, Eyal Starobinets, Alexander Fisher, Amnon Maron, Yitzhak Strauss, Henry R. Giuliani, John L. Thornhill, J. Ward Velikovich, Alexander L. GP IEEE TI MEASUREMENTS OF THE MAGNETIC FIELD DISTRIBUTION IN A Z-PINCH PLASMA DURING AND NEAR STAGNATION, USING POLARIZATION SPECTROSCOPY SO 2015 42ND IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCES (ICOPS) LA English DT Meeting Abstract CT IEEE International Conference on Plasma Sciences (ICOPS) CY MAY 24-28, 2015 CL Belek, TURKEY SP IEEE NPSS, IEEE, PLAZAMATEK C1 [Rosenzweig, Guy; Kroupp, Eyal; Starobinets, Alexander; Fisher, Amnon; Maron, Yitzhak; Strauss, Henry R.; Giuliani, John L.; Thornhill, J. Ward; Velikovich, Alexander L.] Weizmann Inst Sci, Rehovot, Israel. [Strauss, Henry R.] HRS Fus, W Orange, NJ USA. [Giuliani, John L.; Thornhill, J. Ward; Velikovich, Alexander L.] Naval Res Lab, Washington, DC 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 978-1-4799-6974-6 PY 2015 PG 1 WC Physics, Fluids & Plasmas SC Physics GA BF2ND UT WOS:000380482200524 ER PT J AU Velikovich, AL AF Velikovich, A. L. GP IEEE TI MITIGATION OF RAYLEIGH-TAYLOR INSTABILITY IN HIGH-ENERGY-DENSITY PLASMAS SO 2015 42ND IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCES (ICOPS) LA English DT Meeting Abstract CT IEEE International Conference on Plasma Sciences (ICOPS) CY MAY 24-28, 2015 CL Belek, TURKEY SP IEEE NPSS, IEEE, PLAZAMATEK C1 [Velikovich, A. L.] Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4799-6974-6 PY 2015 PG 1 WC Physics, Fluids & Plasmas SC Physics GA BF2ND UT WOS:000380482200538 ER PT J AU Boomgaarden, J Corney, J Whittaker, H Dinolt, G McEachen, J AF Boomgaarden, J. Corney, J. Whittaker, H. Dinolt, G. McEachen, J. BE Wysocki, TA Wysocki, BJ TI CHALLENGES IN EMULATING SENSOR AND RESOURCE-BASED STATE CHANGES FOR ANDROID MALWARE DETECTION SO 2015 9TH INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATION SYSTEMS (ICSPCS) LA English DT Proceedings Paper CT 9th International Conference on Signal Processing and Communication Systems (ICSPCS) CY DEC 14-16, 2015 CL Cairns, AUSTRALIA SP IEEE, IEEE Commun Soc, Univ Nebraska, Peter Kiewit Inst DE Android; mobile; malware; sensors; dynamic analysis AB The increasing prevalence of mobile malware has driven the need for emulated, dynamic analysis techniques. Unfortunately, emulating mobile devices is nontrivial because of the different types of hardware features onboard (e.g., sensors) and the manner in which users interact with their devices as compared to traditional computing platforms. To evaluate this, our research focuses on the enumeration and comparison of multiple attributes and event values from sensors and dynamic resources on Android runtime environments, both from physical devices and online analysis services. Utilizing our results from enumeration, we develop two different Android applications that are successful in detecting and evading the emulated environments utilized by those mobile analysis services during execution. When ran on physical devices, the same applications successfully perform a pseudomalware action and send device identifying information to our server. C1 [Boomgaarden, J.] Naval Postgrad Sch, Dept Comp Sci, Monterey, CA 93943 USA. Naval Postgrad Sch, Dept Elect & Comp Engn, Monterey, CA USA. RP Boomgaarden, J (reprint author), Naval Postgrad Sch, Dept Comp Sci, Monterey, CA 93943 USA. NR 10 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4673-8118-5 PY 2015 PG 10 WC Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA BF1KT UT WOS:000380405700014 ER PT J AU Pimentel, B Tummala, M McEachen, J AF Pimentel, Benjamin Tummala, Murali McEachen, John BE Wysocki, TA Wysocki, BJ TI Passive Geolocation of Mobile Subscribers Using a Single Base Station with Third Party Capture SO 2015 9TH INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATION SYSTEMS (ICSPCS) LA English DT Proceedings Paper CT 9th International Conference on Signal Processing and Communication Systems (ICSPCS) CY DEC 14-16, 2015 CL Cairns, AUSTRALIA SP IEEE, IEEE Commun Soc, Univ Nebraska, Peter Kiewit Inst DE geolocation; mobile wireless networks; 4G networks AB In many densely populated environments, there is an abundance of base stations by which a mobile station may be passively geographically located (geolocated) using various techniques that require multiple base stations. Areas in which base station density is sparse may not possess the requisite number of base stations to perform such techniques and, therefore, require different methods by which to geolocate mobile stations. In this paper, we present a passive geolocation scheme that only requires observation of the initial ranging information exchange between a mobile station and a single base station in order to determine a position estimate for the mobile station. The scheme is specifically applied to the Worldwide Interoperability for Microwave Access (WiMAX) 4G standard. The method is validated through computer simulation and field experimentation in a WiMAX network. C1 [Pimentel, Benjamin] Off Naval Res, Arlington, VA 22217 USA. [Tummala, Murali; McEachen, John] Naval Postgrad Sch, Dept Elect & Comp Engn, Monterey, CA USA. RP Pimentel, B (reprint author), Off Naval Res, Arlington, VA 22217 USA. EM benjamin.a.pimentel1@navy.mil; mtummala@nps.edu; mceachen@nps.edu NR 9 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4673-8118-5 PY 2015 PG 6 WC Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA BF1KT UT WOS:000380405700046 ER PT J AU Roth, JD Tummala, M McEachen, JC Scrofani, JW AF Roth, John D. Tummala, Murali McEachen, John C. Scrofani, James W. BE Wysocki, TA Wysocki, BJ TI On Mobile Positioning Via Cellular Synchronization Assisted Refinement (CeSAR) in LTE and GSM Networks SO 2015 9TH INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATION SYSTEMS (ICSPCS) LA English DT Proceedings Paper CT 9th International Conference on Signal Processing and Communication Systems (ICSPCS) CY DEC 14-16, 2015 CL Cairns, AUSTRALIA SP IEEE, IEEE Commun Soc, Univ Nebraska, Peter Kiewit Inst DE positioning; geolocation; timing advance; Weibull distribution; LTE; GSM ID WEIBULL DISTRIBUTION; RELIABILITY TESTS AB Inferring user equipment (UE) location in cellular networks via uplink timing management presents attractive possibilities in an increasingly mobile-connected world. Power constrained mobile devices with ever more common applications that rely on location-based services demand an alternate solution to positioning than a Global Navigation Satellite System (GNSS) and its derivatives. In this paper we provide analysis of mobile positioning via timing advance (TA), an LTE parameter also accounted for in legacy network deployments. Specifically, we provide analysis for a TA-based method Cellular Synchronization Assisted Refinement (CeSAR). We demonstrate through analysis and simulation how CeSAR can increase accuracy in timing advance-based positioning by several hundreds of meters with no impact to radio link level traffic. CeSAR is shown to be robust to situations where unassisted TA-based positioning can provide poor positioning accuracy. C1 [Roth, John D.] US Naval Acad, Elect & Comp Engn Dept, Annapolis, MD 21402 USA. [Tummala, Murali; McEachen, John C.; Scrofani, James W.] Naval Postgrad Sch, Elect & Comp Engn Dept, Monterey, CA USA. RP Roth, JD (reprint author), US Naval Acad, Elect & Comp Engn Dept, Annapolis, MD 21402 USA. EM jroth@usna.edu NR 15 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4673-8118-5 PY 2015 PG 8 WC Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA BF1KT UT WOS:000380405700079 ER PT J AU Boglione, L Goodman, J AF Boglione, Luciano Goodman, Joel GP IEEE TI A tunable Marchand balun at K band in Silicon Germanium (SiGe) technology SO 2015 GERMAN MICROWAVE CONFERENCE LA English DT Proceedings Paper CT 2015 German Microwave Conference CY MAR 16-18, 2015 CL Nurenburg, GERMANY SP AIRBUS Defence & Space, Anritsu, Ansys, bsw Testsystems & Consulting, Carl Cranz Gesellschaft e V., Fraunhofer FHR, Fraunhofer IIS, Frankonia, MRC Gigacomp, Elektronik Gmbh & Co Kg, Keysight Technol, MIcian, Natl Instruments, Rhode & Schwar, Telemeter Elect, IMST, Tactron Elekt, IMA e V., European Microwave Ass, VDE, ITG, IEEE, MTT S, HFT, Friedrich Alexander Univ Erlangen Nurenburg AB This paper presents the design of a switch-based, tunable Marchand balun at K band. The tunability is achieved by using pass gate CMOS structures that ideally switch in or out sections of the balun, thereby controlling its frequency response. The balun is fabricated in a high performance SiGe BiCMOS process with standard 180 nm CMOS technology. The ability to tune the response across a frequency range is demonstrated. The balun is characterized in terms of mixed signal scattering parameters. Extensive layout and simulations have been executed. The authors believe this is the first demonstration of a tunable balun using pass gate structures to change the lengths of the balun windings in the high region of the microwave range. C1 [Boglione, Luciano; Goodman, Joel] Naval Res Lab, Washington, DC 20375 USA. RP Boglione, L (reprint author), Naval Res Lab, Washington, DC 20375 USA. NR 11 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-3-9812-6686-3 PY 2015 BP 292 EP 295 PG 4 WC Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA BF1FY UT WOS:000380392800075 ER PT B AU Lontorfos, G Fairbanks, KD Watkins, L Robinson, WH AF Lontorfos, Georgios Fairbanks, Kevin D. Watkins, Lanier Robinson, William H. BE Kanhere, S Tolle, J Cherkaoui, S TI Remotely Inferring Device Manipulation of Industrial Control Systems via Network Behavior SO 2015 IEEE 40TH LOCAL COMPUTER NETWORKS CONFERENCE WORKSHOPS (LCN WORKSHOPS) LA English DT Proceedings Paper CT IEEE LCN Local Computer Networks Conference on 40th Annual IEEE Conference on Local Computer Networks (LCN 2015) CY OCT 26-29, 2015 CL Clearwater Beach, FL SP IEEE Advancing Technology for Humanity, IEEE computer society, TCCC Technical Committee Computer Communications DE cyber-physical systems; tampering; security; network traffic analysis; processor workload; machine learning; device fingerprinting AB This paper presents preliminary findings on a novel method to remotely fingerprint a network of Cyber Physical Systems and demonstrates the ability to remotely infer the functionality of an Industrial Control System device. A monitoring node measures the target device's response to network requests and statistically analyzes the collected data to build and classify a profile of the device's functionality via machine learning. As ICSs are used to control critical infrastructure processes such as power generation and distribution, it is vital to develop methods to detect tampering. A system employing our measurement technique could discover if an insider has made unauthorized changes to a device's logic. Our architecture also has advantages because the monitoring node is separate from the measured device. Our results indicate the ability to accurately infer (i.e., using a tunable threshold value) discrete ranges of task cycle periods (i.e., CPU loads) that could correspond to different functions. C1 [Lontorfos, Georgios; Watkins, Lanier] Johns Hopkins Univ, Informat Secur Inst, Baltimore, MD 21218 USA. [Fairbanks, Kevin D.] US Naval Acad, Annapolis, MD 21402 USA. [Robinson, William H.] Vanderbilt Univ, Nashville, TN 37235 USA. RP Fairbanks, KD (reprint author), US Naval Acad, Annapolis, MD 21402 USA. EM glontor1@jhu.edu; fairbank@usna.edu; lanier.watkins@jhuapl.edu; william.h.robinson@vanderbilt.edu NR 13 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4673-6773-8 PY 2015 BP 603 EP 610 PG 8 WC Telecommunications SC Telecommunications GA BF2FS UT WOS:000380463700002 ER PT S AU Nagayama, S Sasao, T Butler, JT Thornton, MA Manikas, TW AF Nagayama, Shinobu Sasao, Tsutomu Butler, Jon T. Thornton, Mitchell A. Manikas, Theodore W. GP IEEE TI Edge Reduction for EVMDDs to Speed Up Analysis of Multi-State Systems SO 2015 IEEE 45TH INTERNATIONAL SYMPOSIUM ON MULTIPLE-VALUED LOGIC SE International Symposium on Multiple-Valued Logic LA English DT Proceedings Paper CT IEEE 45th International Symposium on Multiple-Valued Logic ISMVL 2015 CY MAY 18-20, 2015 CL Waterloo, CANADA SP Univ Waterloo, IEEE, IEEE Comp Soc DE Reduction rules for decision diagrams; EVMDDs; edge reduction of EVMDDs; multi-state systems; system analysis based on decision diagrams ID DECISION DIAGRAMS; COMPONENTS; RELIABILITY; ALGORITHM; COVERAGE; MDDS AB This paper introduces a reduction rule for edgevalued multi-valued decision diagrams (EVMDDs), which improves the speed of analysis of multi-state systems (MSSs). Most reduction rules for decision diagrams remove redundant nodes, while the introduced rule removes redundant edges in EVMDDs. Since the time to do an analysis in an MSS depends on the number of edges in the EVMDD, the introduced rule makes analysis of MSSs faster, especially when used with edge minimization algorithms based on variable grouping. Experimental results show that the introduced rule reduces the number of edges by up to 30%, and this results in an analysis time that is reduced by up to 30%. C1 [Nagayama, Shinobu] Hiroshima City Univ, Dept Comp & Network Engn, Hiroshima, Japan. [Sasao, Tsutomu] Meiji Univ, Dept Comp Sci, Kawasaki, Kanagawa, Japan. [Butler, Jon T.] Naval Postgrad Sch, Dept Elect & Comp Engn, Monterey, CA USA. [Thornton, Mitchell A.; Manikas, Theodore W.] Southern Methodist Univ, Dept Comp Sci & Engn, Dallas, TX USA. RP Nagayama, S (reprint author), Hiroshima City Univ, Dept Comp & Network Engn, Hiroshima, Japan. NR 26 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 0195-623X BN 978-1-4799-1777-8 J9 INT SYM MVL PY 2015 BP 170 EP 175 DI 10.1109/ISMVL.2015.22 PG 6 WC Engineering, Electrical & Electronic; Logic SC Engineering; Science & Technology - Other Topics GA BF2FR UT WOS:000380463600030 ER PT S AU Heitmeyer, CL Leonard, EI AF Heitmeyer, Constance L. Leonard, Elizabeth I. GP IEEE TI Obtaining Trust in Autonomous Systems: Tools for Formal Model Synthesis and Validation SO 2015 IEEE/ACM 3RD FME WORKSHOP ON FORMAL METHODS IN SOFTWARE ENGINEERING SE FME Workshop on Formal Methods in Software Engineering LA English DT Proceedings Paper CT IEEE/ACM 3rd FME Workshop on Formal Methods in Software Engineering CY MAY 18-18, 2015 CL Florence, ITALY SP IEEE Comp Soc, TCSE, ACM, SIGSOFT, FME, West, ISTI, Consiglio Nazionale delle Ricerche, CPS AB An important and growing class of cyber physical systems are autonomous vehicles (AVs). While the U.S. military has used AVs, such as unmanned air vehicles, for many years, civilian use of these vehicles, e.g., by the FBI, has been steadily increasing. Plans to equip AVs with cameras, scientific instruments, and weapons, such as tear gas and pepper spray, have led to growing mistrust of AVs and calls for greater human control and oversight. This paper describes two kinds of trust needed in systems involving AVs and how a formal model and model-based simulation can help obtain such trust. It introduces two new tools to be integrated into FOrmal Requirements Modeling and AnaLysis (FORMAL), an upgrade of NRL's Software Cost Reduction (SCR) toolset; the new tools support formal modeling and symbolic execution (via simulation) of cyber physical systems. The first tool synthesizes a formal model from scenarios. The synthesized model forms a basis for formal verification, and for model validation using simulation. The second tool, which combines the existing SCR simulator with the eBotworks 3D autonomy simulator, overcomes the SCR simulator's major limitations-its support for only discrete computation and its inability to simulate continuous movement. To evaluate the new tools, the paper describes synthesis of a formal model of a Navy unmanned ground vehicle currently under development and simulation of its behavior. C1 [Heitmeyer, Constance L.; Leonard, Elizabeth I.] Naval Res Lab, Washington, DC 20375 USA. RP Heitmeyer, CL (reprint author), Naval Res Lab, Washington, DC 20375 USA. EM constance.heitmeyer@nrl.navy.mil; elizabeth.leonard@nrl.navy.mil OI Heitmeyer, Constance/0000-0001-7942-9309 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 2380-873X BN 978-1-4673-7043-1 J9 FME WORKS FORM PY 2015 BP 54 EP 60 DI 10.1109/FormaliSE.2015.16 PG 7 WC Computer Science, Software Engineering; Engineering, Electrical & Electronic SC Computer Science; Engineering GA BF3AD UT WOS:000380515000009 ER PT S AU Schaum, A Allman, E Leathers, RA Stites, M AF Schaum, A. Allman, Eric Leathers, Robert A. Stites, Matthew GP IEEE TI Spectral Ship Surveillance from Space SO 2015 IEEE APPLIED IMAGERY PATTERN RECOGNITION WORKSHOP (AIPR) SE IEEE Applied Imagery Pattern Recognition Workshop LA English DT Proceedings Paper CT IEEE Applied Imagery Pattern Recognition Workshop (AIPR) CY OCT 13-15, 2015 CL Washington, DC ID CONTINUUM FUSION AB Remote surveillance of the ocean will soon become a high priority for the U.S. Navy, as international threats to close strategic choke points intensify, as piracy flourishes, and as gaps in U.S. waters continue to permit illegal intrusions with contraband cargo. A critical need is arising to identify threats as early and as distant from our shores as possible. A growing constellation of spectrally-capable satellites can facilitate this function, which must be performed autonomously. Earth's total ocean area is 10(14) (1 m)(2) pixels. This paper develops a spectral anomaly detection algorithm that is based on a statistical mixture model of clouds and ocean. A real time implementable prototype version is derived using clairvoyant fusion methods. Development of a second generation version applicable to a more accurate clutter model is also described. C1 [Schaum, A.; Allman, Eric; Leathers, Robert A.] Naval Res Lab, Washington, DC 20375 USA. [Stites, Matthew] Space Dynam Lab, Logan, UT 84341 USA. RP Schaum, A (reprint author), Naval Res Lab, Washington, DC 20375 USA. NR 5 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 1550-5219 BN 978-1-4673-9558-8 J9 IEEE APP IMG PAT PY 2015 PG 8 WC Computer Science, Artificial Intelligence; Engineering, Electrical & Electronic; Imaging Science & Photographic Technology SC Computer Science; Engineering; Imaging Science & Photographic Technology GA BF1YA UT WOS:000380444400027 ER PT S AU Williams, E AF Williams, Elmer (Al) GP IEEE TI The Role of Imaging in the Detection, Identification, and Treatment of Cancer SO 2015 IEEE APPLIED IMAGERY PATTERN RECOGNITION WORKSHOP (AIPR) SE IEEE Applied Imagery Pattern Recognition Workshop LA English DT Proceedings Paper CT IEEE Applied Imagery Pattern Recognition Workshop (AIPR) CY OCT 13-15, 2015 CL Washington, DC AB In April, 2015, I was diagnosed with Non-Hodgkin Lymphoma which is a blood cancer that attacks the lymph nodes. Having recently purchased a winter home in Clearwater, Florida, in early March, 2015, I did not have a doctor network established in Florida. After having lower abdominal pains for more than a week, I went to the emergency room (ER) at the local hospital. A CT scan was done of the lower abdomen, and I was told that my lymph nodes were enlarged. During the next five days in the hospital, I had three CT scans and a renal scan of the kidneys and urinary track. The third CT scan was used to guide a needle for a biopsy of an enlarged lymph node. Six days later my Oncologist informed me that I had Non-Hodgkin Lymphoma Large B cell rapid growing type of cancer. Over the next six days I had a MUGA Scan of the heart and a PET scan of the whole body. Seventeen days after going to the ER I started my first Chemotherapy treatment. Although I have little or no knowledge about medical imagery, I did spend almost forty years working for the Department of Defense researching imaging systems to detect small targets in a cluttered and noisy environment. I have also been attending the annual AIPR Workshops for more than 30 years. AIPR has been bringing together researchers from the Department of Defense, the medical community, and other application areas of imagery understanding. This paper will address some of the challenges of detecting and identifying cancer in the cluttered environment of the human body and the role of medical imaging systems that improve the survival rate of cancer patients. Imagery from the many scanning systems used to detect, identify, and monitor progress of treatment for my cancer will be shown and discussed. A history of the improving survival rate for Non-Hodgkin Lymphoma from 1960 to present and the role the imaging systems played in this improved survival rate will be discussed. C1 [Williams, Elmer (Al)] US Naval Res Lab, Washington, DC 20375 USA. RP Williams, E (reprint author), US Naval Res Lab, Washington, DC 20375 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 1550-5219 BN 978-1-4673-9558-8 J9 IEEE APP IMG PAT PY 2015 PG 6 WC Computer Science, Artificial Intelligence; Engineering, Electrical & Electronic; Imaging Science & Photographic Technology SC Computer Science; Engineering; Imaging Science & Photographic Technology GA BF1YA UT WOS:000380444400004 ER PT S AU Podpirka, A Lee, WK Brintlinger, T Bassim, N Sheehan, PE Ruppalt, L AF Podpirka, Adrian Lee, Woo-Kyung Brintlinger, Todd Bassim, Nabil Sheehan, Paul E. Ruppalt, Laura GP IEEE TI Nanopatterning in GeTe Phase Change Materials Using Heated Atomic Force Microscope Tips SO 2015 IEEE NANOTECHNOLOGY MATERIALS AND DEVICES CONFERENCE (NMDC) SE IEEE Nanotechnology Materials and Devices Conference LA English DT Proceedings Paper CT IEEE Nanotechnology Materials and Devices Conference (NMDC) CY SEP 12-16, 2015 CL Anchorage, AR DE Phase Change Materials; GeTe; chalcogenides; FIB; AFM; TEM; amorphous; PCM C1 [Podpirka, Adrian; Lee, Woo-Kyung; Brintlinger, Todd; Bassim, Nabil; Sheehan, Paul E.; Ruppalt, Laura] US Naval Res Lab, Washington, DC 20375 USA. RP Podpirka, A (reprint author), US Naval Res Lab, Washington, DC 20375 USA. EM adrian.podpirka.ctr@nrl.navy.mil NR 7 TC 0 Z9 0 U1 3 U2 3 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2378-377X BN 978-1-4673-9362-1 J9 IEEE NANOTECHNOL MAT PY 2015 PG 2 WC Engineering, Electrical & Electronic; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Engineering; Science & Technology - Other Topics; Materials Science GA BF1ZE UT WOS:000380447300034 ER PT J AU Hou, WL Liu, GG Han, M AF Hou, Weilin Liu, Guigen Han, Ming GP IEEE TI A Novel, High-Resolution, High-Speed Fiber-Optic Temperature Sensor for Oceanographic Applications SO 2015 IEEE/OES 11TH CURRENT, WAVES AND TURBULENCE MEASUREMENT (CWTM) LA English DT Proceedings Paper CT Current, Waves and Turbulence Measurement (CWTM), (IEEE/OES) Eleventh CY MAR 02-06, 2015 CL St Petersburg, FL DE Fiber-optic thermometer; Fabry-Perot interferometer; ocean microstructure; turbulence AB A novel fiber-optic thermometer based on a thick silicon Fabry-Perot interferometer (FPI) realized on the tip of a cleaved single-mode fiber has been designed and implemented, in order to achieve high resolution and high sampling rate necessary for studying underwater turbulent microstructures. The choice of silicon for its large thermal-optic coefficient and thermal expansion coefficient enables a high sensitivity of 84 pm/degrees C. A new data processing method, using average wavelength tracking, is proposed to reduce the wavelength noise. The high sensitivity along with the low wavelength noise results in a temperature resolution as high as 0.0009 degrees C. Furthermore, the good thermal conductivity of silicon endows the proposed sensor with a response time similar to 2 ms, which allows a sampling frequency of 500 Hz. By further optimizing the sensor structure, e.g. size of the silicon FPI, a better temperature resolution and quicker response can be expected. This novel temperature sensor significantly augments underwater sensing capabilities, especially those related to microstructure turbulence mixing process in the ocean. A preliminary experimental demonstration is presented, where the sensor was used to measure the highly dynamic temperature variations induced by a sharp thermo-gradient underwater. C1 [Hou, Weilin] Naval Res Lab, Code 7333, Stennis Space Ctr, MS 39529 USA. [Liu, Guigen; Han, Ming] Univ Nebraska, Dept Elect Engn, Lincoln, NE 68588 USA. RP Hou, WL (reprint author), Naval Res Lab, Code 7333, Stennis Space Ctr, MS 39529 USA. EM mhan@unl.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 BN 978-1-4799-8419-0 PY 2015 PG 4 WC Engineering, Electrical & Electronic; Instruments & Instrumentation; Water Resources SC Engineering; Instruments & Instrumentation; Water Resources GA BF1PY UT WOS:000380426700056 ER PT J AU Matt, S Hou, WL Goode, W Josset, D AF Matt, Silvia Hou, Weilin Goode, Wesley Josset, Damien GP IEEE TI Turbulent kinetic energy and temperature variance dissipation in laboratory generated Rayleigh-Benard turbulence designed to study the distortion of light by underwater microstructure fluctuations SO 2015 IEEE/OES 11TH CURRENT, WAVES AND TURBULENCE MEASUREMENT (CWTM) LA English DT Proceedings Paper CT Current, Waves and Turbulence Measurement (CWTM), (IEEE/OES) Eleventh CY MAR 02-06, 2015 CL St Petersburg, FL DE optical turbulence; turbulence measurements; ADV; Rayleigh-Benard tank; turbulent dissipation rate AB Small-scale variation in temperature and salinity can lead to localized changes in the index of refraction and can distort electro-optical (EO) signal transmission in ocean and atmosphere. This phenomenon is well-studied in the atmosphere and in this context is generally called "optical turbulence". Less is known about how turbulent fluctuations in the ocean distort EO signal transmissions, an effect that can impact various underwater applications, from diver visibility to active and passive remote sensing. To provide a test bed for the study of the impacts from turbulent flows on EO signal transmission, as well as to examine and mitigate turbulence effects, we set up a laboratory turbulence environment allowing the variation of turbulence intensity. Convective turbulence is generated in a large Rayleigh-Benard type tank (5m by 0.5m by 0.5m) and the turbulent flow is quantified using a suite of sensors that includes high-resolution Acoustic Doppler Velocimeter profilers (Vectrino Profiler) and fast thermistor probes (PME Conductivity-Temperature probe). These measurements allow the characterization of turbulent kinetic energy and temperature variance dissipation rates in the tank, for different convective strengths. Optical image degradation in the tank is then assessed in relation to turbulence intensity. The turbulence measurements are further complemented by very high-resolution computational fluid dynamics simulations of convective turbulence emulating the tank environment. These numerical simulations supplement the sparse laboratory measurements, providing full fields of temperature and velocity in the tank. The numerical data compared well to the laboratory data and both conformed to the Kolmogorov spectrum of turbulence and the Batchelor spectrum of temperature fluctuations. The numerical model was able to qualitatively reproduce the turbulence fields observed in the laboratory tank. Quantitatively, the numerical simulations are consistent with the observed epsilon in the tank, but do not fully resolve the temperature gradients and thus underestimate chi. The unique approach of integrating optical techniques, turbulence measurements and numerical simulations can help advance our understanding of how to mitigate the effects of turbulence impacts on underwater optical signal transmission, as well as on the use of optical techniques to probe oceanic processes. C1 [Matt, Silvia; Hou, Weilin; Goode, Wesley] Naval Res Lab, Div Oceanog, Stennis Space Ctr, MS 39529 USA. [Josset, Damien] Naval Res Lab, Stennis Space Ctr, MS 39529 USA. RP Matt, S (reprint author), Naval Res Lab, Div Oceanog, Stennis Space Ctr, MS 39529 USA. EM silvia.matt@nrlssc.navy.mil 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 BN 978-1-4799-8419-0 PY 2015 PG 6 WC Engineering, Electrical & Electronic; Instruments & Instrumentation; Water Resources SC Engineering; Instruments & Instrumentation; Water Resources GA BF1PY UT WOS:000380426700011 ER PT J AU Reeder, DB Yang, YJ AF Reeder, D. Benjamin Yang, Yiing Jang GP IEEE TI Observations of near-seabed currents induced by very large internal solitary waves over a sand dune field in the South China Sea SO 2015 IEEE/OES 11TH CURRENT, WAVES AND TURBULENCE MEASUREMENT (CWTM) LA English DT Proceedings Paper CT Current, Waves and Turbulence Measurement (CWTM), (IEEE/OES) Eleventh CY MAR 02-06, 2015 CL St Petersburg, FL DE South China Sea; sand dunes; internal solitary waves; suspended sediments; currents AB Internal waves are known to generate currents sufficient to suspend seabed sediment. Presented here are first-ever measurements of the near-seabed currents over a sand dune field in the South China Sea (SCS) during the passage of internal solitary waves (ISW) in June 2014 aboard the R/V Ocean Research V (OR5). Horizontal currents were observed to exceed 100 cm/s, reaching as high as 200 cm/s in one case, while vertical currents were observed to reach 30 cm/s. The Shields parameter for this environment exceeds 0.1, indicating that the ISW-induced currents are sufficient to suspend and transport the available sediment, supporting the hypothesis that the ISW's are the generation mechanism of the very large subaqueous sand dunes on the upper continental slope of the northwestern SCS. C1 [Reeder, D. Benjamin] Naval Postgrad Sch, Dept Oceanog, Monterey, CA 93943 USA. [Yang, Yiing Jang] Natl Taiwan Univ, Inst Oceanog, Taipei, Taiwan. RP Reeder, DB (reprint author), Naval Postgrad Sch, Dept Oceanog, Monterey, CA 93943 USA. EM dbreeder@nps.edu; yjyang67@ntu.edu.tw NR 4 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4799-8419-0 PY 2015 PG 5 WC Engineering, Electrical & Electronic; Instruments & Instrumentation; Water Resources SC Engineering; Instruments & Instrumentation; Water Resources GA BF1PY UT WOS:000380426700032 ER PT J AU Rosenberg, L Sletten, M AF Rosenberg, Luke Sletten, Mark GP IEEE TI ANALYSIS OF MARITIME X-BAND VELOCITY SAR IMAGERY SO 2015 IEEE RADAR CONFERENCE LA English DT Proceedings Paper CT IEEE Radar Conference CY OCT 27-30, 2015 CL Johannesburg, SOUTH AFRICA SP Inst Elect & Elect Engineers, Geosci & Remote Sensing Soc ID SYNTHETIC-APERTURE RADAR; SURFACE; WAVES AB The velocity synthetic aperture radar (VSAR) algorithm separates the radial velocity components present in a SAR image. These velocity images can be recombined to form an image with the corrected motion or further exploited for the purpose of target detection. The Naval Research Laboratory Multi Aperture Synthetic Aperture Radar (NRL MSAR) is an X-band airborne test bed designed to investigate remote sensing and surveillance applications that exploit multiple along-track phase centers, in particular, applications that require measurement of scene motion. During its inaugural deployment in September 2014, a large amount of maritime data was collected at the mouth of the Chesapeake Bay and out into the Atlantic Ocean. This paper examines SAR imagery of two boats which have been corrected with VSAR processing and then investigates the statistics of the associated VSAR sea-clutter. C1 [Rosenberg, Luke] Def Sci & Technol Grp, Canberra, ACT, Australia. [Sletten, Mark] US Naval Res Lab, Washington, DC USA. RP Rosenberg, L (reprint author), Def Sci & Technol Grp, Canberra, ACT, Australia. EM Luke.Rosenberg@dsto.defence.gov.au NR 22 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4673-9655-4 PY 2015 BP 121 EP 126 PG 6 WC Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA BF1WN UT WOS:000380440700023 ER PT B AU Rowe, NC AF Rowe, Neil C. GP IEEE TI Finding Contextual Clues to Malware Using a Large Corpus SO 2015 IEEE SYMPOSIUM ON COMPUTERS AND COMMUNICATION (ISCC) LA English DT Proceedings Paper CT IEEE Symposium on Computers and Communication (ISCC) CY JUL 06-09, 2015 CL Larnaca, CYPRUS DE malware; context; clues; testing; hashes AB Identification of malware is a critical problem in computer security. Many signature-identification, behavior-recognition, and reputation-based tools are available for host-based detection. However, so many files are present on systems today that checking all files is time-consuming, and better methods are needed to suggest which files are of highest priority to check in partial scans. This work developed and tested local contextual clues to malware in the metadata of file systems on an international corpus of 248 million files on 3961 drives. 398,949 hash values of malware were found in this corpus using five methods, and 3,681,211 hash values of non-malware were chosen for comparison using three methods. Malware identification rates were compared for the fifteen combinations and were cross-correlated for different types of drives and file types. Results showed that different malware identification methods find significantly different things. Then the strength of particular local clues in file metadata (directory and file names, sizes, times, and hash values) was assessed and results were compared for the fifteen combinations. Some classic clues (e.g. rare file extensions and deletion status) were confirmed and others were not (e.g. double extensions and occurrence in the operating system). With this data, a program was implemented to estimate the likelihood that a given file was malware based solely on its metadata context. With three random subsets of our corpus, our methods gave 51 times better precision (fraction of malware in files identified as malware) with 70% better recall (fraction of malware detected) than the approach of inspecting executables alone. They also ran significantly faster than signature checking, and can be used before other kinds of malware analysis. C1 [Rowe, Neil C.] US Navy, Postgrad Sch, Dept Comp Sci, Monterey, CA 93943 USA. RP Rowe, NC (reprint author), US Navy, Postgrad Sch, Dept Comp Sci, Monterey, CA 93943 USA. EM ncrowe@nps.edu NR 15 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4673-7194-0 PY 2015 BP 229 EP 236 PG 8 WC Computer Science, Theory & Methods; Engineering, Electrical & Electronic; Telecommunications SC Computer Science; Engineering; Telecommunications GA BF2MW UT WOS:000380481500037 ER PT J AU Boglione, L Goodman, J AF Boglione, Luciano Goodman, Joel GP IEEE TI Experimental demonstration of a tunable Marchand balun at K band in Silicon Germanium (SiGe) technology SO 2015 TEXAS SYMPOSIUM ON WIRELESS AND MICROWAVE CIRCUITS AND SYSTEMS (WMCS) LA English DT Proceedings Paper CT Texas Symposium on Wireless and Microwave Circuits and Systems (WMCS) CY APR 23-24, 2015 CL Waco, TX DE Tunable circuits and devices; passive circuits; integrated circuits; microwave measurement AB This paper demonstrates the operation of a Marchand balun prototype in a standard Silicon process that can switch its operation between 2 adjacent regions of the K band. Pass gate CMOS switches connect or disconnect additional lengths of line in the windings of the balun to change the balun's frequency response while maintaining its mixed mode performance. Digital control of the balun is enabled by the CMOS switches. The balun is fabricated in a high performance SiGe BiCMOS process built on standard 180 nm CMOS technology and characterized in terms of mixed mode scattering parameters. A broad instantaneous bandwidth is demonstrated with relative long gate length MOS devices. The authors believe that this is the first experimental demonstration of a balun tunable by pass gate switches in the high region of the microwave range. C1 [Boglione, Luciano; Goodman, Joel] Naval Res Lab, Washington, DC 20375 USA. RP Boglione, L (reprint author), Naval Res Lab, Washington, DC 20375 USA. EM luciano.boglione@nrl.navy.mil; joel.goodman@nrl.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 BN 978-1-4673-8070-6 PY 2015 PG 5 WC Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA BF1TJ UT WOS:000380435300006 ER PT J AU Eustice, D Baylis, C Latham, C Marks, RJ Cohen, L AF Eustice, Dylan Baylis, Charles Latham, Casey Marks, Robert J., II Cohen, Lawrence GP IEEE TI Optimizing Radar Waveforms Using Generalized Alternating Projections SO 2015 TEXAS SYMPOSIUM ON WIRELESS AND MICROWAVE CIRCUITS AND SYSTEMS (WMCS) LA English DT Proceedings Paper CT Texas Symposium on Wireless and Microwave Circuits and Systems (WMCS) CY APR 23-24, 2015 CL Waco, TX DE ambiguity function; projection onto convex sets; waveform optimization ID AMBIGUITY FUNCTIONS AB The radar ambiguity function, described as an autocorrelation of shifts in time and frequency, is useful for determining a waveform's accuracy at detecting targets in certain range-Doppler combinations. An algorithm is proposed which uses a generalized method of alternating projections to synthesize waveforms with desired ambiguity function properties. In practice, it is often desirable to minimize the magnitude of the ambiguity function at range-Doppler combinations where targets other than the detection are likely to cause interference. The algorithm alternates between projections in the time, frequency, and range-Doppler domains until an optimal solution which fits desired ambiguity function properties is found. This work provides a computationally intelligent methodology to dynamically optimize detection in radar applications and a foundation for future work in joint circuit optimization for spectral compliance. C1 [Eustice, Dylan; Baylis, Charles; Latham, Casey; Marks, Robert J., II] Baylor Univ, Dept Elect & Comp Engn, Wireless & Microwave Circuits & Syst Program, Waco, TX 76798 USA. [Cohen, Lawrence] US Navy, Res Lab, Div Radar, Washington, DC USA. RP Eustice, D (reprint author), Baylor Univ, Dept Elect & Comp Engn, Wireless & Microwave Circuits & Syst Program, Waco, TX 76798 USA. NR 13 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4673-8070-6 PY 2015 PG 6 WC Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA BF1TJ UT WOS:000380435300003 ER PT B AU Gannon, AJ Hobson, GV Turner, MG Sanz, W AF Gannon, Anthony J. Hobson, Garth V. Turner, Mark G. Sanz, Wolfgang GP ASME TI PERFORMANCE OF A SPLITTERED TRANSONIC ROTOR WITH SEVERAL TIP CLEARANCES SO ASME TURBO EXPO: TURBINE TECHNICAL CONFERENCE AND EXPOSITION, 2015, VOL 2A LA English DT Proceedings Paper CT ASME Turbo Expo: Turbine Technical Conference and Exposition CY JUN 15-19, 2015 CL Montreal, CANADA SP Int Gas Turbine Inst ID COMPRESSOR AB The effect of increasing the tip-gap size on the performance of a splittered transonic rotor is presented. Tip clearance has a large influence on the performance and efficiency of compressors and fans during operation. In a gas turbine engine the ratio of tip-gap to blade height or span usually increases in the direction of flow. The front stages usually have a smaller ratio of tip-gap to blade height than the aft core stages. In addition the front stages are usually operating in the transonic regime while the rear stages operate sub-sonically. In order to be representative of these differing flow regimes the results of a range of tests at varying tip-gaps and speeds from subsonic to transonic are presented. A highly loaded transonic axial splittered rotor is used as the test article in this study. Three experiments with cold tip gaps of 0.53 [mm], 0.76 [mm] and 0.99 [mm] are presented. Each experiment was run at six tip-Mach numbers ranging from Mach 0.72 to Mach 1.2 each over a full speed-line from choked to stalling conditions. Exit temperature and pressure profiles at the rotor exit are presented along with performance maps of pressure ratio and efficiency. Significant differences in performance in terms of pressure ratio, efficiency and operating range due to the tip-gap increase were observed and are presented. The full mechanical geometry is available upon request to provide an open test case to evaluate simulation codes. This includes the cold-shape, the cavity between the rotor and stationary exit and the mounting bolts and geometry. The manufacturing steps in the preparation of the material and methods used to form the abradable material used over the rotor are presented. In addition the inlet conditions taking into account the effect of relative humidity on gas properties are presented. The complete data set of experimental results is also available electronically. C1 [Gannon, Anthony J.; Hobson, Garth V.] Naval Postgrad Sch, Turboprop Lab, 700 Dyer Rd, Monterey, CA 93940 USA. [Turner, Mark G.] Univ Cincinnati, Aerosp Engn, Cincinnati, OH 45220 USA. [Sanz, Wolfgang] Graz Univ Technol, Inst Thermal Turbomachinery & Machine Dynam, A-8010 Graz, Austria. RP Gannon, AJ (reprint author), Naval Postgrad Sch, Turboprop Lab, 700 Dyer Rd, Monterey, CA 93940 USA. RI Gannon, Anthony/E-9598-2017 OI Gannon, Anthony/0000-0002-4602-4396 NR 22 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 978-0-7918-5663-5 PY 2015 AR V02AT37A040 PG 11 WC Engineering, Mechanical SC Engineering GA BF1AC UT WOS:000380084400040 ER PT B AU Turner, MG Nemnem, A Gannon, AJ Hobson, GV Sanz, W AF Turner, Mark G. Nemnem, Ahmed Gannon, Anthony J. Hobson, Garth V. Sanz, Wolfgang GP ASME TI MEASURED HEAT TRANSFER IN A TRANSONIC FAN RIG AT CASING WITH IMPLICATIONS ON PERFORMANCE SO ASME TURBO EXPO: TURBINE TECHNICAL CONFERENCE AND EXPOSITION, 2015, VOL 2A LA English DT Proceedings Paper CT ASME Turbo Expo: Turbine Technical Conference and Exposition CY JUN 15-19, 2015 CL Montreal, CANADA SP Int Gas Turbine Inst AB A highly loaded transonic fan with a splittered rotor and maximum pressure ratio of 2 has been tested at the Naval Postgraduate School. Temperatures on the casing outer wall have been measured using thermocouples in order to assess the heat transfer. An axisymmetric heat transfer analysis has shown that the heat transfer downstream of the rotor through the casing leads to an overstatement of the experimental efficiency by 0.36% and 0.29% for 100% and 90% speed respectively. Just above the rotor is an abradable material that can be considered adiabatic. Thus heat escapes only aft of the rotor and upstream of the total pressure and total temperature probes. For rotors without an adiabatic casing, the effect would be considerably higher. This has a large effect on the exit total temperature profiles which are often not matched well with CFD using an adiabatic boundary condition. In addition, heat transfer coefficients have been determined that can be used to assess other compressor applications. C1 [Turner, Mark G.; Nemnem, Ahmed] Univ Cincinnati, Dept Aerosp Engn, Cincinnati, OH 45220 USA. [Gannon, Anthony J.; Hobson, Garth V.] Naval Postgrad Sch, Dept Mech & Aerosp Engn, Monterey, CA USA. [Sanz, Wolfgang] Graz Univ Technol, Inst Thermal Turbomachinery & Machine Dynam, Graz, Austria. RP Turner, MG (reprint author), Univ Cincinnati, Dept Aerosp Engn, Cincinnati, OH 45220 USA. EM mark.turner@uc.edu RI Gannon, Anthony/E-9598-2017 OI Gannon, Anthony/0000-0002-4602-4396 NR 15 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 978-0-7918-5663-5 PY 2015 AR V02AT37A039 PG 8 WC Engineering, Mechanical SC Engineering GA BF1AC UT WOS:000380084400039 ER PT B AU Volino, RJ AF Volino, Ralph J. GP ASME TI EXPERIMENTS WITH A NEW RIBBED BLADE TIP AND ENDWALL GEOMETRY ON A HIGH PRESSURE TURBINE BLADE SO ASME TURBO EXPO: TURBINE TECHNICAL CONFERENCE AND EXPOSITION, 2015, VOL 2A LA English DT Proceedings Paper CT ASME Turbo Expo: Turbine Technical Conference and Exposition CY JUN 15-19, 2015 CL Montreal, CANADA SP Int Gas Turbine Inst ID TURBULENT-BOUNDARY-LAYERS; HEAT-TRANSFER; LEAKAGE; FLOW AB A new blade tip and endwall geometry were studied experimentally. The blade tips and endwall included ribs directed in the pitchwise direction. The blade tip ribs fit between the endwall ribs, with a gap of 1.5% of axial chord between the top of each rib and the surface which it faced. Hence, a tip gap was maintained, but the tip flow area was divided into pitchwise directed channels. Experiments were conducted in a linear turbine cascade with wakes generated by moving upstream rods. Cases were documented both with and without wakes. The total pressure drop coefficient, psi, through the cascade was measured in the endwall region. Velocity fields were acquired in two planes normal to the flow direction using particle image velocimetry (PIV). The rib geometry eliminated the strong tip leakage vortex present in comparison cases with flat and squealer tipped blades. The passage vortex was strengthened and moved farther from the endwall. In spite of the elimination of the tip leakage vortex, total pressure drops were higher with the ribs than with a squealer tip and the same tip gap. Additional experiments showed that dividing the leakage flow area into channels did not reduce the total pressure change, and the endwall ribs acted as roughness and increased psi. Although the increase in psi was a negative outcome for the cascade experiment, the elimination of the tip leakage vortex could have some benefit if its detrimental effect were reduced in downstream stages. C1 [Volino, Ralph J.] US Naval Acad, Dept Mech Engn, Annapolis, MD 21402 USA. RP Volino, RJ (reprint author), US Naval Acad, Dept Mech Engn, Annapolis, MD 21402 USA. EM volino@usna.edu NR 19 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 978-0-7918-5663-5 PY 2015 AR V02AT38A041 PG 9 WC Engineering, Mechanical SC Engineering GA BF1AC UT WOS:000380084400084 ER PT B AU Hobson, GV Gannon, AJ Drayton, S AF Hobson, Garth V. Gannon, Anthony J. Drayton, Scott GP ASME TI DESIGN AND TEST OF A TRANSONIC AXIAL SPLITTERED ROTOR SO ASME TURBO EXPO: TURBINE TECHNICAL CONFERENCE AND EXPOSITION, 2015, VOL 2B LA English DT Proceedings Paper CT ASME Turbo Expo: Turbine Technical Conference and Exposition CY JUN 15-19, 2015 CL Montreal, CANADA SP Int Gas Turbine Inst ID COMPRESSOR STAGE AB A new design procedure was developed that uses commercial-off-the-shelf software (MATLAB, SolidWorks, and ANSYS-CFX) for the geometric rendering and analysis of a transonic axial compressor rotor with splitter blades. Predictive numerical simulations were conducted and experimental data were collected in a Transonic Compressor Rig. This study advanced the understanding of splitter blade geometry, placement, and performance benefits. In particular, it was determined that moving the splitter blade forward in the passage between the main blades, which was a departure from the trends demonstrated in the few available previous transonic axial compressor splitter blade studies, increased the mass flow range with no loss in overall performance. With a large 0.91 mm (0.036 in) tip clearance, to preserve the integrity of the rotor, the experimentally measured peak total-to-total pressure ratio was 1.69 and the peak total-to-total isentropic efficiency was 72 percent at 100 percent design speed. Additionally, a higher than predicted 7.5 percent mass flow rate range was experimentally measured, which would make for easier engine control if this concept were to be included in an actual gas turbine engine. C1 [Hobson, Garth V.; Gannon, Anthony J.] Naval Postgrad Sch, Monterey, CA USA. [Drayton, Scott] US Naval Acad, Annapolis, MD USA. RP Hobson, GV (reprint author), Naval Postgrad Sch, Monterey, CA USA. RI Gannon, Anthony/E-9598-2017 OI Gannon, Anthony/0000-0002-4602-4396 NR 16 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 978-0-7918-5664-2 PY 2015 AR V02BT39A029 PG 14 WC Engineering, Mechanical SC Engineering GA BF1AE UT WOS:000380084700029 ER PT B AU Wimmer, SA Pan, MJ DeGiorgi, VG AF Wimmer, Stephanie A. Pan, Ming-Jen DeGiorgi, Virginia G. GP ASME TI THREE DIMENSIONAL MODELING OF UNFIRED CERAMICS DURING LAMINATION SO PROCEEDINGS OF THE ASME INTERNATIONAL MECHANICAL ENGINEERING CONGRESS AND EXPOSITION, 2014, VOL 2A LA English DT Proceedings Paper CT ASME International Mechanical Engineering Congress and Exposition (IMECE) CY NOV 14-20, 2014 CL Montreal, CANADA SP ASME AB A finished ceramic component with complex geometries such as micro-channels requires a high degree of dimensional accuracy. This accuracy depends upon precise control of the unfired ceramic body before sintering. One method for creating precise micro-channel geometries is the fugitive phase approach. In this approach, a sacrificial material, the fugitive phase, is used to foul' channels or voids in the unfired ceramic body. The fugitive phase is removed or sacrificed during the subsequent sintering. For this paper, the authors examine the lamination step of the fugitive phase approach computationally. The lamination step is where the unfired ceramic and fugitive phase pieces are layered and pressed together to remove voids before sintering. The compression of the unfired ceramic during pressing causes pressure gradients, viscoelastic deformation, displacement of the fugitive phase pieces, and rebounding. Three dimensional modeling is used to capture out of plane movement or bending of the long fugitive phase pieces that are used to form long micro-channels. For this research, the unfired ceramic phase consists of tape cast mullite and the fugitive phase is paper. This work primarily examines viscoelastic material models of the unfired ceramic phase for a range of temperatures. The filling of voids, movement of the fugitive phases, pressure gradients, and the rebounding that occurs when the unfired ceramic body is removed from the die press are also noted. The information obtained from computational simulations is used to help direct concurrent experimental investigations. C1 [Wimmer, Stephanie A.; Pan, Ming-Jen; DeGiorgi, Virginia G.] Naval Res Lab, Washington, DC 20375 USA. RP Wimmer, SA (reprint author), Naval Res Lab, Washington, DC 20375 USA. NR 12 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 978-0-7918-4643-8 PY 2015 AR V02AT02A046 PG 8 WC Engineering, Manufacturing; Engineering, Mechanical SC Engineering GA BF0UD UT WOS:000379448900046 ER PT B AU Patterson, JS Fauvell, KD McMahon, J Moralez, JO AF Patterson, Jeffrey S. Fauvell, Kevin D. McMahon, Jay Moralez, Javier O. GP ASME TI UNITED STATES NAVY 501-K34 GAS TURBINE ENGINE RADCON EFFORT SO ASME TURBO EXPO: TURBINE TECHNICAL CONFERENCE AND EXPOSITION, 2015, VOL 1 LA English DT Proceedings Paper CT ASME Turbo Expo: Turbine Technical Conference and Exposition CY JUN 15-19, 2015 CL Montreal, CANADA SP Int Gas Turbine Inst AB On the afternoon of March 11, 2011 at 2:46pm, a 9.0 magnitude earthquake took place 231 miles northeast of Tokyo, Japan, at a depth of 15.2 miles. The earthquake caused a tsunami with 30 foot waves that damaged several nuclear reactors in the area. It was the fourth largest earthquake on record (since 1900) and the largest to hit Japan. On March 12, 2011, the United States Government launched Operation Tomodachi to provide humanitarian relief aid to Japan. In all, a total of 24,000 troops, 189 aircraft, 24 naval ships, supported this relief effort, at a cost of $90.0 million. The U.S. Navy provided material support, personnel movement, search and rescue missions and damage surveys. During the operation, 11 gas turbine U.S. warships operated within the radioactive plume. As a result, numerous gas turbine engines ingested radiological contaminants and are now operating under Radiological Controls (RADCON). This paper will describe the events that lead to Operation Tomodachi, as well as the resultant efforts on the U.S. Navy's Japanese based gas turbine fleet. In addition, this paper will outline the U.S. Navy's effort to decontaminate, overhaul and return these RADCON assets back into the fleet. C1 [Patterson, Jeffrey S.; Fauvell, Kevin D.] Naval Surface Warfare Ctr, Carderock Div, Philadelphia, PA USA. [McMahon, Jay; Moralez, Javier O.] RWG Repair & Overhauls USA Inc, Houston, TX USA. RP Patterson, JS (reprint author), Naval Surface Warfare Ctr, Carderock Div, Philadelphia, PA USA. NR 9 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 978-0-7918-5662-8 PY 2015 AR V001T22A002 PG 11 WC Engineering, Mechanical SC Engineering GA BF1AB UT WOS:000380084300058 ER PT B AU Ibrahim, MB Volino, RJ AF Ibrahim, Mounir B. Volino, Ralph J. GP ASME TI EXPERIMENTAL AND COMPUTATIONAL STUDY OF NOVEL TIP LEAKAGE MITIGATION METHODS FOR HIGH PRESSURE TURBINE BLADES SO ASME TURBO EXPO: TURBINE TECHNICAL CONFERENCE AND EXPOSITION, 2015, VOL 5B LA English DT Proceedings Paper CT ASME Turbo Expo: Turbine Technical Conference and Exposition CY JUN 15-19, 2015 CL Montreal, CANADA SP Int Gas Turbine Inst ID HEAT-TRANSFER; EFFICIENCY AB This paper presents computational and experimental study of a possible approach to reduce tip leakage losses. The study was conducted on the EEE (Energy Efficient Engine) HPT (High Pressure Turbine) rotor tip geometry. The CFD was done utilizing the commercial numerical solver ANSYS FLUENT. The experimental work was conducted in a low speed wind tunnel with linear cascade at the USNA (for Re = 30,000) and the NASA Transonic Turbine Blade Cascade facility at the NASA John H. Glenn Research Center for Re of 85,000 to 683,000 at two isentropic exit Mach numbers of 0.74 and 0.34 were reported. The overall scope of this study is to investigate how the tip leakage and overall blade losses are affected by injection from the tip surface at the camber line, and the jet blowing ratio. The results identify areas where future investigation can be explored in order to achieve higher performance of the high pressure turbines. C1 [Ibrahim, Mounir B.] Cleveland State Univ, Dept Mech Engn, Cleveland, OH 44115 USA. [Volino, Ralph J.] US Naval Acad, Dept Mech Engn, Annapolis, MD 21402 USA. RP Ibrahim, MB (reprint author), Cleveland State Univ, Dept Mech Engn, Cleveland, OH 44115 USA. EM m.ibrahim@csuohio.edu; volino@usna.edu NR 20 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 978-0-7918-5672-7 PY 2015 AR UNSP V05BT13A027 PG 16 WC Engineering, Mechanical SC Engineering GA BF1AJ UT WOS:000380175100080 ER PT S AU Oriti, G Julian, AL AF Oriti, Giovanna Julian, Alexander L. GP IEEE TI Reactive Power Control with an Energy Management System in Single Phase AC Microgrids SO 2015 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE) SE IEEE Energy Conversion Congress and Exposition LA English DT Proceedings Paper CT IEEE Energy Conversion Congress and Exposition CY SEP 20-24, 2015 CL Montreal, CANADA SP IEEE, IEEE Power Elect Soc, IEEE Ind Applicat Soc DE energy management system; reactive power control; microgrids; power converters AB This paper presents a novel control strategy to achieve unity power factor with an energy management system (EMS) in an AC microgrid. The digitally controlled, power electronics based EMS controls the microgrid in both grid connected and islanding mode by making sure that energy is harvested from distributed resources, stored in batteries, and available at all times for critical loads. In this paper a new EMS prototype is presented which offers reactive power compensation as an auxiliary service. Modeling and simulations are presented and verified experimentally on a laboratory prototype. C1 [Oriti, Giovanna; Julian, Alexander L.] Naval Postgrad Sch, Elect & Comp Engn Dept, Monterey, CA 93943 USA. RP Oriti, G (reprint author), Naval Postgrad Sch, Elect & Comp Engn Dept, Monterey, CA 93943 USA. NR 10 TC 0 Z9 0 U1 2 U2 2 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2329-3721 BN 978-1-4673-7151-3 J9 IEEE ENER CONV PY 2015 BP 753 EP 759 PG 7 WC Energy & Fuels; Engineering, Electrical & Electronic SC Energy & Fuels; Engineering GA BF0II UT WOS:000378882901014 ER PT S AU Lentijo, K Opila, DF AF Lentijo, Kathleen Opila, Daniel F. GP IEEE TI Minimizing Inverter Self-synchronization due to Reactive Power Injection on Weak Grids SO 2015 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE) SE IEEE Energy Conversion Congress and Exposition LA English DT Proceedings Paper CT IEEE Energy Conversion Congress and Exposition CY SEP 20-24, 2015 CL Montreal, CANADA SP IEEE, IEEE Power Elect Soc, IEEE Ind Applicat Soc ID IMPEDANCE ESTIMATION; GENERATION; FREQUENCY; SYSTEMS AB Power converter operation on high-impedance grids can result in oscillatory behavior as a result of "self-synchronization" of an inverter's phase detection unit (PDC). This phenomenon is particularly of concern in renewable energy applications and it occurs when the converter's injected current changes the voltage angle at the point-of-common coupling (PCC) and synchronizes to itself through its PDU. One of the most prevalent PDUs in industry is based on the synchronous-reference frame (SRL) phase-locked loop (PLL). In this work the large signal stability limit of the Sla-PLL is modified to include the angle of reactive current injection, the phenomena of reduced gain margin as a result of self synchronization is explained and a method to prevent the effects of self-synchronization is proposed and demonstrated. The proposed method is referred to as the grid-sync (GS) NI and requires a real-time estimation of the grid impedance. The GS-PLL is shown to improve small-signal stability in order to reduce phase-margin erosion. C1 [Lentijo, Kathleen] UEC Elect, Hanahan, SC 29410 USA. [Opila, Daniel F.] US Naval Acad, Dept Elect & Comp Engn, Annapolis, MD 21402 USA. RP Lentijo, K (reprint author), UEC Elect, Hanahan, SC 29410 USA. EM lentijo@ieee.org; opila@usna.edu NR 19 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2329-3721 BN 978-1-4673-7151-3 J9 IEEE ENER CONV PY 2015 BP 1136 EP 1142 PG 7 WC Energy & Fuels; Engineering, Electrical & Electronic SC Energy & Fuels; Engineering GA BF0II UT WOS:000378882901067 ER PT J AU Trafton, JG Harrison, AM Lawson, WE AF Trafton, J. Gregory Harrison, Anthony M. Lawson, Wallace E. GP IEEE TI Using spatial representations in gesture to facilitate early word learning: A priming process model SO 5TH INTERNATIONAL CONFERENCE ON DEVELOPMENT AND LEARNING AND ON EPIGENETIC ROBOTICS (ICDL-EPIROB) LA English DT Proceedings Paper CT 5th IEEE Joint International Conference on Development and Learning and on Epigenetic Robotics (IEEE ICDL-EpiRob) CY AUG 13-16, 2015 CL Providence, RI SP IEEE, Brown Univ, IEEE Computat Intelligence Soc, Brown Univ, Human Centered Robot Initiat DE ACT-R/E; cognitive robotics; gesture learning; human robot interaction; priming ID LANGUAGE-DEVELOPMENT; RECOGNITION AB As children learn to speak, they also gesture; previous empirical work has suggested that there is a direct link between the two. In this paper, we propose a priming process model that uses gesture to facilitate language. Our model uses the ACT-R/E cognitive architecture and uses a combination of repetition naming and priming from gesture spatial representations to increase the probability that a word will be remembered. Our model simulates 11 months of learning and runs on an embodied platform. C1 [Trafton, J. Gregory; Harrison, Anthony M.; Lawson, Wallace E.] Naval Res Lab, Washington, DC 20375 USA. RP Trafton, JG (reprint author), Naval Res Lab, Washington, DC 20375 USA. EM greg.trafton@nrl.navy.mil; anthony.harrison@nrl.navy.mil; ed.lawson@nrl.navy.mil NR 25 TC 0 Z9 0 U1 2 U2 2 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4673-9320-1 PY 2015 BP 70 EP 77 PG 8 WC Computer Science, Artificial Intelligence; Engineering, Electrical & Electronic; Robotics SC Computer Science; Engineering; Robotics GA BF0OC UT WOS:000379164500011 ER PT B AU Merrill, MH Pogue, WR Baucom, JN AF Merrill, Marriner H. Pogue, William R., III Baucom, Jared N. GP ASME TI ELECTROSPRAY IONIZATION OF POLYMERS: EVAPORATION, DROP FISSION, AND DEPOSITED PARTICLE MORPHOLOGY SO PROCEEDINGS OF THE ASME INTERNATIONAL MECHANICAL ENGINEERING CONGRESS AND EXPOSITION, 2014, VOL 2B LA English DT Proceedings Paper CT ASME International Mechanical Engineering Congress and Exposition (IMECE) CY NOV 14-20, 2014 CL Montreal, CANADA SP ASME AB The fundamental challenge of nanomanufacturing is to create, control, and assemble enormous quantities of nanoscale objects and distribute them over large surface areas. Electrospray ionization (ESI) has the potential to address this challenge due to its simplicity, applicability to a broad range of materials, and intrinsic scalability. ESI uses high voltages to electrically charge and disperse materials ranging in size from sub-nanometers to micrometers in diameter, which can then be guided and deposited on a substrate. However, the interactions between initial spray parameters and final deposited morphology are not well understood. In this study, we show that when electrospraying polymers, deposited particle size and morphology can be modified through the initial polymer concentration and nozzle-substrate distance. We report the results of electrospraying 0.1% and 0.5% concentrations of poly(acrylic acid) (PAA) onto substrates with 1, 3, and 5 cm nozzle-substrate distances. Scanning electron microscopy showed that deposited particles ranged from less than 10 nm to nearly 200 nm in diameter with tight, multi-modal size distributions. Particle shape and spread on the substrate were also examined. We use physics-based models to show that the size distributions are a function of the evaporation and drop fission during the spray along with the effect of solute concentration gradients within an evaporating drop. This work validates our previously developed models and will lead to future process guidelines. C1 [Merrill, Marriner H.; Pogue, William R., III; Baucom, Jared N.] Naval Res Lab, Washington, DC 20375 USA. RP Merrill, MH (reprint author), Naval Res Lab, Washington, DC 20375 USA. EM marriner.merrill@nrl.navy.mil NR 19 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 978-0-7918-4644-5 PY 2015 AR V02BT02A047 PG 9 WC Engineering, Manufacturing; Engineering, Mechanical SC Engineering GA BF0UE UT WOS:000379449000047 ER PT S AU Sullivan, K Lawson, W Sofge, D AF Sullivan, Keith Lawson, Wallace Sofge, Donald GP IEEE TI Improving Superpixel Boundaries Using Information Beyond the Visual Spectrum SO 2015 IEEE CONFERENCE ON COMPUTER VISION AND PATTERN RECOGNITION WORKSHOPS (CVPRW) SE IEEE Computer Society Conference on Computer Vision and Pattern Recognition Workshops LA English DT Proceedings Paper CT IEEE Conference on Computer Vision and Pattern Recognition (CVPR) CY JUN 07-12, 2015 CL Boston, MA SP IEEE AB Superpixels enable a scene to be analyzed on a larger scale, by examining regions that have a high level of similarity. These regions can change depending on how similarity is measured. Color is a simple and effective measure, but it is adversely affected in environments where the boundary between objects and the surrounding environment are difficult to detect due to similar colors and/or shadows. We extend a common superpixel algorithm (SLIC) to include near-infrared intensity information and measured distance information to help oversegmentation in complex environments. We demonstrate the efficacy of our approach on two problems: object segmentation and scene segmentation. C1 [Sullivan, Keith] Exelis Inc, Mclean, VA 22303 USA. [Lawson, Wallace; Sofge, Donald] Naval Res Lab, Washington, DC 20375 USA. RP Sullivan, K (reprint author), Exelis Inc, Mclean, VA 22303 USA. NR 23 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2160-7508 BN 978-1-4673-6759-2 J9 IEEE COMPUT SOC CONF PY 2015 PG 8 WC Computer Science, Artificial Intelligence SC Computer Science GA BF0IK UT WOS:000378887900038 ER PT J AU Canning, FX AF Canning, Francis X. GP IEEE TI Adaptively computed large overlapping functions for MoM computations SO PROCEEDINGS OF THE 2015 INTERNATIONAL CONFERENCE ON ELECTROMAGNETICS IN ADVANCED APPLICATIONS (ICEAA) LA English DT Proceedings Paper CT 17th International Conference on Electromagnetics in Advanced Applications (ICEAA) / 5th IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (IEEE-APWC) CY SEP 07-11, 2015 CL Torino, ITALY SP Politecnico Torino, IEIIT CNR, Int Union Radio Sci, IEEE Antennas & Propagat Soc, IEEE Italy Sect, IEEE N Italy AP ED MTT Chapter, Ist Superiore Mario Boella, Tecnologie Informazione Telecomunicazione, Torino Wireless Fdn, IEEE Antenna & Propagat Soc AB A method is presented for creating a new type of basis functions on bodies of arbitrary shape and material properties. These functions are adapted to that body so that only two per wavelength create a significant electromagnetic effect at a distance. This effect is maximized by overlapping functions and a numerical method that tapers the functions at their ends. Overlapping functions are used, while approximately maintaining orthogonality of the functions. This is analogous to using a taper function on an antenna. This maximizes the weakness of the effect at a distance of most of these functions, while still having two per wavelength that have a strong effect at a distance. A new feature of this work is the use of tapered overlapping nearly orthogonal functions. These functions give a highly sparse MoM Impedance matrix. C1 [Canning, Francis X.] Naval Air Warfare Ctr, Weap Div, China Lake, CA 93555 USA. RP Canning, FX (reprint author), Naval Air Warfare Ctr, Weap Div, China Lake, CA 93555 USA. EM FXC@IEEE.org 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 978-1-4799-7806-9 PY 2015 BP 94 EP 96 PG 3 WC Engineering, Electrical & Electronic SC Engineering GA BF0AR UT WOS:000378428800024 ER PT J AU Triandaf, I AF Triandaf, Ioana GP IEEE TI Spatiotemporal Chaotic Dynamics in a Transmission Line Model SO PROCEEDINGS OF THE 2015 INTERNATIONAL CONFERENCE ON ELECTROMAGNETICS IN ADVANCED APPLICATIONS (ICEAA) LA English DT Proceedings Paper CT 17th International Conference on Electromagnetics in Advanced Applications (ICEAA) / 5th IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (IEEE-APWC) CY SEP 07-11, 2015 CL Torino, ITALY SP Politecnico Torino, IEIIT CNR, Int Union Radio Sci, IEEE Antennas & Propagat Soc, IEEE Italy Sect, IEEE N Italy AP ED MTT Chapter, Ist Superiore Mario Boella, Tecnologie Informazione Telecomunicazione, Torino Wireless Fdn, IEEE Antenna & Propagat Soc AB In a transmission line oscillator a linear wave travels along a piece of cable, the transmission line, and interacts with terminating electrical components. Diodes are integrated into almost all electronic devices as a means of protecting the logic circuits from destructive outside signals and high voltage discharges. In the simple network model that we present, we show chaotic effects associated with diodes, that if transmitted into the primary circuitry may disrupt or possibly damage the device. The chaotic behavior is quantified in terms of Lyapunov exponents. C1 [Triandaf, Ioana] Naval Res Lab, Plasma Phys Div, Code 6792, Washington, DC 20375 USA. RP Triandaf, I (reprint author), Naval Res Lab, Plasma Phys Div, Code 6792, Washington, DC 20375 USA. EM ioana.triandaf@nrl.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 BN 978-1-4799-7806-9 PY 2015 BP 329 EP 332 PG 4 WC Engineering, Electrical & Electronic SC Engineering GA BF0AR UT WOS:000378428800069 ER PT S AU Abramovich, YI San Antonio, G Frazer, GJ AF Abramovich, Y. I. San Antonio, G. Frazer, G. J. GP IEEE TI APERIODIC WAVEFORMS WITH MISMATCHED FILTERING FOR TARGET DETECTION IN HEAVY CLUTTER. PART II - MIMO RADAR ARCHITECTURE SO 2015 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING (ICASSP) SE International Conference on Acoustics Speech and Signal Processing ICASSP LA English DT Proceedings Paper CT 40th IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) CY APR 19-24, 2014 CL Brisbane, AUSTRALIA SP IEEE, Inst Elect & Elect Engineers Signal Proc Soc DE HF radar; OTHR; waveforms; mis-match filtering; aperiodic; MIMO ID HEIGHT DISTRIBUTIONS; AMBIGUITY FUNCTION; BOUNDS; VOLUME AB In a companion paper we have investigated the applicability of aperiodic noise-like waveforms with a "thumb-tack" ambiguity function processed using mismatched compression filters for strong clutter rejection. In this paper we investigate the role of the same principle in mode-selective MIMO OTHR applications. It has been recently demonstrated that periodic waveforms currently used in HF-OTHR for efficient ground clutter mitigation have very limited scope for MIMO radar applications. This is due to the fact that the sidelobe-free area in the appropriate MIMO ambiguity function is K times smaller than for a single periodic waveform, where K is the number of MIMO waveforms. C1 [Abramovich, Y. I.] WR Syst Ltd, Fairfax, VA USA. [San Antonio, G.] Naval Res Lab, Washington, DC 20375 USA. [Frazer, G. J.] DSTO, NSI Div, Canberra, ACT, Australia. RP Abramovich, YI (reprint author), WR Syst Ltd, Fairfax, VA 22030 USA. 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 SN 1520-6149 BN 978-1-4673-6997-8 J9 INT CONF ACOUST SPEE PY 2015 BP 2344 EP 2348 PG 5 WC Acoustics; Engineering, Electrical & Electronic SC Acoustics; Engineering GA BE1SM UT WOS:000368452402097 ER PT S AU Abramovich, YI San Antonio, G Frazer, GJ AF Abramovich, Y. I. San Antonio, G. Frazer, G. J. GP IEEE TI APERIODIC WAVEFORMS WITH MISMATCHED FILTERING FOR TARGET DETECTION IN HEAVY CLUTTER. PART I - SIMO RADAR ARCHITECTURE SO 2015 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING (ICASSP) SE International Conference on Acoustics Speech and Signal Processing ICASSP LA English DT Proceedings Paper CT 40th IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) CY APR 19-24, 2014 CL Brisbane, AUSTRALIA SP IEEE, Inst Elect & Elect Engineers Signal Proc Soc DE HF radar; OTHR; waveforms; mis-match filtering; aperiodic ID AMBIGUITY FUNCTION AB Periodic waveforms used for most radar operations in heavy clutter often suffer from range-folding and/or Doppler frequency aliasing effects. Aperiodic waveforms with a "thumb-tack" ambiguity function do not have range and/or Doppler ambiguities, but due to the relatively high sidelobe levels cannot support the high sub-clutter visibility required in many applications. In this paper, we demonstrate that for typical HF OTHR scenarios, aperiodic waveforms and mismatched filtering can provide the required level of sub-clutter visibility with acceptable SNR degradation. Theoretical results are complemented by experimental validation. C1 [Abramovich, Y. I.] WR Syst Ltd, Fairfax, VA USA. [San Antonio, G.] Naval Res Lab, Washington, DC USA. [Frazer, G. J.] DSTO, NSI Div, Canberra, ACT, Australia. RP Abramovich, YI (reprint author), WR Syst Ltd, Fairfax, VA 22030 USA. 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 SN 1520-6149 BN 978-1-4673-6997-8 J9 INT CONF ACOUST SPEE PY 2015 BP 2769 EP 2773 PG 5 WC Acoustics; Engineering, Electrical & Electronic SC Acoustics; Engineering GA BE1SM UT WOS:000368452402182 ER PT S AU Webster, T Higgins, T AF Webster, Tegan Higgins, Thomas GP IEEE TI DETECTION AIDED MULTISTATIC VELOCITY BACKPROJECTION FOR PASSIVE RADAR SO 2015 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING (ICASSP) SE International Conference on Acoustics Speech and Signal Processing ICASSP LA English DT Proceedings Paper CT 40th IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) CY APR 19-24, 2014 CL Brisbane, AUSTRALIA SP IEEE, Inst Elect & Elect Engineers Signal Proc Soc DE multistatic radar; passive radar; backprojection; moving target indication; imaging ID AMBIGUITY FUNCTION; MOVING TARGETS; COHERENT; TOMOGRAPHY; SYSTEMS AB This paper extends previous work to process and combine data from multiple bistatic pairs in a passive multistatic radar system. The previously presented Multistatic Velocity Back-projection (MVBP) combines and visualizes multistatic radar data. MVBP generates a six-dimensional data cube in position and velocity but does not provide a mechanism for detecting targets within the space. This paper discusses Detection Aided Multistatic Velocity Backprojection (DA-MVBP), a method for seeding MVBP with detections from individual bistatic pairs. DA-MVBP reduces the space through which it is necessary to search for targets in backprojected multistatic radar data and may result in enhanced parameter estimation and detection performance over traditional multilateration of detections. In this work DA-MVBP is applied to experimental passive multistatic radar data. C1 [Webster, Tegan; Higgins, Thomas] Naval Res Lab, Div Radar, Washington, DC 20375 USA. RP Webster, T (reprint author), Naval Res Lab, Div Radar, Washington, DC 20375 USA. NR 24 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 1520-6149 BN 978-1-4673-6997-8 J9 INT CONF ACOUST SPEE PY 2015 BP 5580 EP 5584 PG 5 WC Acoustics; Engineering, Electrical & Electronic SC Acoustics; Engineering GA BE1SM UT WOS:000368452405146 ER PT S AU Abramovich, YI San Antonio, G AF Abramovich, Yuri I. San Antonio, Geoffrey GP IEEE TI Oversampled Receive Array Calibration SO 2015 23RD EUROPEAN SIGNAL PROCESSING CONFERENCE (EUSIPCO) SE European Signal Processing Conference LA English DT Proceedings Paper CT 23rd European Signal Processing Conference (EUSIPCO) CY AUG 31-SEP 04, 2015 CL Nice, FRANCE SP EURECOM AB The problem of receive antenna array calibration in cases where the array is strongly spatially "over-sampled" is addressed in this paper. We suggest a new technique wherein spatially distributed strong clutter returns can be used for calibration with the goal of minimizing the power at the output of a number of antenna finger-beams steered into the invisible domain. The calibration algorithm is analyzed using simulation results and real over-the-horizon radar (OTHR) data to illustrate the effectiveness of the proposed technique. C1 [Abramovich, Yuri I.] WR Syst, Fairfax, VA 22030 USA. [San Antonio, Geoffrey] US Naval Res Lab, Washington, DC 20375 USA. RP Abramovich, YI (reprint author), WR Syst, Fairfax, VA 22030 USA. NR 14 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2076-1465 BN 978-0-9928-6263-3 J9 EUR SIGNAL PR CONF PY 2015 BP 529 EP 533 PG 5 WC Engineering, Electrical & Electronic SC Engineering GA BE9OB UT WOS:000377943800107 ER PT S AU Baggenstoss, PM AF Baggenstoss, Paul M. GP IEEE TI DERIVATIVE-AUGMENTED FEATURES AS A DYNAMIC MODEL FOR TIME-SERIES SO 2015 23RD EUROPEAN SIGNAL PROCESSING CONFERENCE (EUSIPCO) SE European Signal Processing Conference LA English DT Proceedings Paper CT 23rd European Signal Processing Conference (EUSIPCO) CY AUG 31-SEP 04, 2015 CL Nice, FRANCE SP EURECOM DE PDF estimation; feature derivatives; HMM ID RECOGNITION AB In the field of automatic speech recognition (ASR), it is common practice to augment features with time-derivatives, which we call derivative-augmented features (DAF). Although the method is effective for modeling the dynamic behavior of features and produces significantly lower classification error, it violates the assumption of conditional independence of the observations. The traditional approach is to ignore the problem (simply apply the mathematical approach that assumes independence). In this paper, we take an alternative approach in which we still use the same mathematical approach as before, but calculate a correction factor by integrating out the redundant dimensions, This makes it possible to compare and combine a DAL PDF and anon-DAF PDF. We conduct experiments to demonstrate the usefulness of the approach. C1 [Baggenstoss, Paul M.] Naval Undersea Warfare Ctr, Newport, RI 02841 USA. [Baggenstoss, Paul M.] Fraunhofer FKIE, D-53343 Wachtberg, Germany. RP Baggenstoss, PM (reprint author), Naval Undersea Warfare Ctr, Newport, RI 02841 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 2076-1465 BN 978-0-9928-6263-3 J9 EUR SIGNAL PR CONF PY 2015 BP 958 EP 962 PG 5 WC Engineering, Electrical & Electronic SC Engineering GA BE9OB UT WOS:000377943800193 ER PT S AU Baggenstoss, PM AF Baggenstoss, Paul M. GP IEEE TI CLASS-SPECIFIC MODEL MIXTURES FOR THE CLASSIFICATION OF TIME-SERIES SO 2015 23RD EUROPEAN SIGNAL PROCESSING CONFERENCE (EUSIPCO) SE European Signal Processing Conference LA English DT Proceedings Paper CT 23rd European Signal Processing Conference (EUSIPCO) CY AUG 31-SEP 04, 2015 CL Nice, FRANCE SP EURECOM DE Classification; PDF projection; generative models; kernel methods AB We present a new classifier for acoustic time-series that involves a mixture of generative models. Each model operates on a feature stream extracted from the time-series using overlapped Nanning-weighted segments and has a probability density function (PDF) modeled with a hidden Markov model (HMM). The models use a variety of segmentation sizes and feature extraction methods, yet can he combined at a higher level using a mixture PDF thanks to the PDF projection theorem (PPT) that converts the feature PDF to raw time-series PDFs. The effectiveness of the method is shown using an open data set of short-duration acoustic signals. C1 [Baggenstoss, Paul M.] Naval Undersea Warfare Ctr, Newport, RI 02841 USA. [Baggenstoss, Paul M.] Fraunhofer FKIE, D-53343 Wachtberg, Germany. RP Baggenstoss, PM (reprint author), Naval Undersea Warfare Ctr, Newport, RI 02841 USA. NR 17 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2076-1465 BN 978-0-9928-6263-3 J9 EUR SIGNAL PR CONF PY 2015 BP 2341 EP 2345 PG 5 WC Engineering, Electrical & Electronic SC Engineering GA BE9OB UT WOS:000377943800470 ER PT S AU Hughes, H McMarr, P Alles, M Zhang, EX Arutt, C Doris, B Liu, D Southwick, R Oldiges, P AF Hughes, Harold McMarr, Patrick Alles, Michael Zhang, Enxia Arutt, Charles Doris, Bruce Liu, Derrick Southwick, Richard Oldiges, Philip GP IEEE TI Total Ionizing Dose Radiation Effects on 14 nm FinFET and SOI UTBB Technologies SO 2015 IEEE RADIATION EFFECTS DATA WORKSHOP (REDW) SE IEEE Radiation Effects Data Workshop LA English DT Proceedings Paper CT IEEE Radiation Effects Data Workshop (REDW) CY JUL 13-17, 2015 CL Boston, MA SP IEEE, IEEE Nucl & Plasma Sci Soc ID TRANSISTORS AB 14 nm technology node bulk silicon FinFETs and SOI FinFETs and 14 nm SOI Ultra-Thin-Body and BOX nFETs were irradiated under bias using a 10 keV X-ray source. Irradiation resulted in significant changes in the threshold voltages of the SOI devices and large changes in the off-state current of the bulk FinFETs. C1 [Hughes, Harold; McMarr, Patrick] US Navy, Res Lab, Washington, DC 20375 USA. [Alles, Michael; Zhang, Enxia; Arutt, Charles] Vanderbilt Univ, Nashville, TN 37235 USA. [Doris, Bruce; Liu, Derrick; Southwick, Richard; Oldiges, Philip] IBM Res, Albany, NY 12203 USA. RP Hughes, H (reprint author), US Navy, Res Lab, Washington, DC 20375 USA. EM hughes@estd.nrl.navy.mil; Patrick.McMarr.ctr@nrl.navy.mil; Michael.Alles@Vanderbilt.edu; Enxia.Zhang@Vanderbilt.edu; Charles.Arutt@Vanderbilt.edu; bdoris@us.ibm.com; derrickl@us.ibm.com; southwick@us.ibm.com; poldiges@us.ibm.com NR 6 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2154-0519 BN 978-1-4673-7641-9 J9 IEEE RADIAT EFFECTS PY 2015 BP 97 EP 102 PG 6 WC Computer Science, Theory & Methods; Engineering, Electrical & Electronic; Physics, Fluids & Plasmas; Physics, Nuclear SC Computer Science; Engineering; Physics GA BE9LZ UT WOS:000377773700016 ER PT B AU Abdi, F Baid, H Ahmad, J Gonczy, S Morscher, GN Choi, S Godines, C AF Abdi, Frank Baid, Harsh Ahmad, Jalees Gonczy, Steve Morscher, Gregory N. Choi, Sung Godines, Cody GP ASME TI CERAMIC MATRIX COMPOSITE INTERLAMINAR FRACTURE TOUGHNESS (MODE I-II) CHARACTERIZATION SO PROCEEDINGS OF THE ASME TURBO EXPO: TURBINE TECHNICAL CONFERENCE AND EXPOSITION, 2015, VOL 6 LA English DT Proceedings Paper CT ASME Turbo Expo: Turbine Technical Conference and Exposition CY JUN 15-19, 2015 CL Montreal, CANADA SP Int Gas Turbine Inst DE Fracture Toughness; Interlaminar Crack Growth Resistance; Test Methods; Ceramic Matrix Composites (CMC); Mode I and Mode II; effect of As-built/As-is structural simulation; Multi-scale Progressive Failure Analysis (MS-PFA); Cohesive type failure AB The objective of this effort is to develop and demonstrate innovative interlaminar Mode I and Mode II fracture toughness analysis and test methods for ceramic matrix composites (CMC). Currently, there are number of American Society for Testing and Materials (ASTM) test standards for CMC's at both ambient and elevated temperatures, including interlaminar tension and shear strength test methods. However, there are no standardized test methods for determination of interlaminar fracture toughness in CMC's. Although research work exists on interlaminar Mode I and Mode II fracture toughness of various types of CMC's, the test methods applied particularly in Mode II fracture toughness testing showed definite drawbacks and limitations. ASTM test standards for CMC's may exhibit a zig-zag (wavy) crack path pattern, and fiber bridging. The experimental parameters that may contribute to the difficulty can be summarized as: specimen width and thickness, interface coating thickness, mixed mode failure evolution, and interlaminar defects. Modes I and II crack growth resistances, G(I) and G(II), were analytically determined at ambient temperature using double cantilever beam (DCB) and End Notched Flexure (ENF) geometries. Three (3) CMC material systems were analyzed (Sylramic/IBN/MI, SiC/SiC CVI, and SiC/CAS). Several Finite Element (FE) based potential techniques were investigated: a) Multi-scale progressive failure analysis (MS-PFA); b) Virtual Crack Closure Technique (VCCT); and c) Contour Integral (CI). Advantages and disadvantages of each were identified. The final modeling algorithm recommended was an integrated damage and fracture evolution methodology using MS-PFA and VCCT. The analysis results (Fracture energy vs. crack length, Fracture energy vs. load, Fracture energy vs. crack opening displacement) matched the Mode I and Mode II coupon tests and revealed the following key findings. Mode I-DCB specimen: 1) Sylramic/IBN/MI failure mode is due to interlaminar tension (ILT) only in the interface section and a zigzag pattern observed 2) VCCT crack growth resistance of Sylramic/IBN/MI is well matched to the test data and 3) SiC/SiC CVI failure mode is a mixed mode behavior (ILT to interlaminar shear (ILS). Mode II ENF specimen MS-PFA analysis suggests mixed mode behavior and the zig-zag pattern similar to Mode I coupon tests. C1 [Abdi, Frank; Baid, Harsh; Ahmad, Jalees; Godines, Cody] AlphaSTAR Corp, Long Beach, CA USA. [Gonczy, Steve] Gateway Mat, Mt Prospect, IL USA. [Morscher, Gregory N.] Univ Akron, Akron, OH 44325 USA. [Choi, Sung] NAVAIR, Patuxent River, MD USA. RP Abdi, F (reprint author), AlphaSTAR Corp, Long Beach, CA USA. NR 6 TC 0 Z9 0 U1 1 U2 1 PU AMER SOC MECHANICAL ENGINEERS PI NEW YORK PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA BN 978-0-7918-5675-8 PY 2015 AR V006T02A004 PG 9 WC Engineering, Mechanical; Materials Science, Multidisciplinary SC Engineering; Materials Science GA BE9JB UT WOS:000377639400004 ER PT B AU Faucett, DC Kedir, N Choi, SR AF Faucett, D. Calvin Kedir, Nesredin Choi, Sung R. GP ASME TI FOREIGN OBJECT DAMAGE IN AN OXIDE/OXIDE CMC SUBJECTED TO TENSILE PRELOADING SO PROCEEDINGS OF THE ASME TURBO EXPO: TURBINE TECHNICAL CONFERENCE AND EXPOSITION, 2015, VOL 6 LA English DT Proceedings Paper CT ASME Turbo Expo: Turbine Technical Conference and Exposition CY JUN 15-19, 2015 CL Montreal, CANADA SP Int Gas Turbine Inst DE Foreign object damage (FOD); impact damage; ballistic projectile impact; ceramic matrix composite (CMC); N720/alumina CMC; mechanical properties; prediction of post-impact strength ID GRADE SILICON NITRIDES; STEEL BALL PROJECTILES; IMPACT DAMAGE; SIC/SIC COMPOSITE; FIBER COMPOSITES; PARTICLE IMPACT; BEHAVIOR; INDENTATION; PERFORMANCE; AMBIENT AB Foreign object damage (FOD) phenomenon of an N720/alumina oxide/oxide ceramic matrix composite (CMC) was determined previously using 1.59 mm-diameter hardened steel ball projectiles using impact velocities ranging from 150 to 350 m/s at a normal incidence angle. Target specimens were impacted under tensile preloading with three different levels of load factors of 0, 30, and 50 %. Difference in impact damage between no-preload and pre-load was significant particularly at 350 m/s with the highest load factor of 50 %. A fracture mechanics approach was used to predict post-impact strength as a function of load factor and was assessed its applicability using the experimental data. C1 [Faucett, D. Calvin; Kedir, Nesredin; Choi, Sung R.] Naval Air Syst Command, Patuxent River, MD 20670 USA. RP Choi, SR (reprint author), Naval Air Syst Command, Patuxent River, MD 20670 USA. EM sung.choi@navy.mil NR 50 TC 0 Z9 0 U1 1 U2 1 PU AMER SOC MECHANICAL ENGINEERS PI NEW YORK PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA BN 978-0-7918-5675-8 PY 2015 AR V006T02A005 PG 10 WC Engineering, Mechanical; Materials Science, Multidisciplinary SC Engineering; Materials Science GA BE9JB UT WOS:000377639400005 ER PT S AU Johnson, MK Blanco, JA Gentili, RJ Jaquess, KJ Oh, H Hatfield, BD AF Johnson, Michael K. Blanco, Justin A. Gentili, Rodolphe J. Jaquess, Kyle J. Oh, Hyuk Hatfield, Bradley D. GP IEEE TI Probe-Independent EEG Assessment of Mental Workload in Pilots SO 2015 7TH INTERNATIONAL IEEE/EMBS CONFERENCE ON NEURAL ENGINEERING (NER) SE International IEEE EMBS Conference on Neural Engineering LA English DT Proceedings Paper CT 7th Annual International IEEE EMBS Conference on Neural Engineering (NER) CY APR 22-24, 2015 CL Montpellier, FRANCE SP IEEE, EMBS ID POWER AB Existing approaches for quantifying mental workload using electroencephalography often rely on probe stimuli to elicit stereotyped neural responses such as the P300 wave. Here we explore probe-independent algorithms for classifying three levels of task-complexity in a flight simulator experiment. Using input features derived from estimates of the average power in five frequency bands, we test a variety of classifiers, using 10-fold cross-validation to estimate test set error. Classification accuracy was above 50% ( chance performance: 33.33%) in 13 of 20 subjects on at least one of the four recorded channels, and reached as high as 87.35%. There was strong variability across subjects in both the strength and direction of the relationships between the input features and task-complexity labels, suggesting that classifiers using these input features must be trained to the individual to be useful. C1 [Johnson, Michael K.; Blanco, Justin A.] US Naval Acad, Annapolis, MD 21402 USA. [Gentili, Rodolphe J.; Jaquess, Kyle J.; Oh, Hyuk; Hatfield, Bradley D.] Univ Maryland, College Pk, MD 20742 USA. RP Johnson, MK (reprint author), US Naval Acad, Annapolis, MD 21402 USA. EM michaeljohnson015@gmail.com; blanco@usna.edu; bhatfiel@umd.edu 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 1948-3546 BN 978-1-4673-6389-1 J9 I IEEE EMBS C NEUR E PY 2015 BP 581 EP 584 PG 4 WC Engineering, Biomedical; Neurosciences SC Engineering; Neurosciences & Neurology GA BE9FT UT WOS:000377414600145 ER PT S AU Sciarini, L Elfe, J Shilling, T Martin, E AF Sciarini, Lee Elfe, Jason Shilling, Tim Martin, Eric BE Stephanidis, C TI Initial Evaluation of a Modern Augmented Reality Display for Deployable Embedded Training System SO HCI INTERNATIONAL 2015 - POSTERS' EXTENDED ABSTRACTS, PT I SE Communications in Computer and Information Science LA English DT Proceedings Paper CT 2nd International Conference on Learning and Collaboration Technologies / 17th International Conference on Human-Computer Interaction CY AUG 02-07, 2015 CL Los Angeles, CA AB When flight time is not available, flight simulators are an effective task rehearsal tool used by the military to train and maintaining aviator proficiency. Unfortunately, the physical characteristics of traditional simulator architectures prevent their use in most operational environments. Previous research has demonstrated that the embedded training (ET) simulator concept is viable but also has limitations in the display of immersive visuals (Lennerton, 2004). Recent advancements in virtual display devices and aircraft design can overcome challenges of the past and should rapidly advance the realization of ET simulators. However, the ability of technology to provide an ET solution must be supported by user acceptance and confidence that effective training transfer will occur with such a system. This effort explored the feasibility of using a modern, user worn, 3D, projection based Augmented Reality (AR) system as the visual interface for a hypothetical ET system with two fixed wing and one rotary wing aircraft. Eight Naval Aviation Subject Matter Experts (SMEs) were given a preflight questionnaire, participated in a simulated flight using the AR display, and completed a post-flight questionnaire. Results indicated that both the ET concept and the prototype AR system were highly regarded. C1 [Sciarini, Lee; Elfe, Jason; Shilling, Tim; Martin, Eric] Naval Postgrad Sch, Monterey, CA 93943 USA. RP Sciarini, L (reprint author), Naval Postgrad Sch, Monterey, CA 93943 USA. EM lwsciari@nps.edu; jdelfe@nps.edu; twshilli@nps.edu; jemartin@nps.edu NR 9 TC 0 Z9 0 U1 2 U2 2 PU SPRINGER-VERLAG BERLIN PI BERLIN PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY SN 1865-0929 BN 978-3-319-21380-4; 978-3-319-21379-8 J9 COMM COM INF SC PY 2015 VL 528 BP 226 EP 231 DI 10.1007/978-3-319-21380-4_40 PG 6 WC Computer Science, Interdisciplinary Applications; Computer Science, Theory & Methods SC Computer Science GA BE9FM UT WOS:000377404100040 ER PT S AU Morag, N AF Morag, Nadav BE Apikyan, S Diamond, D TI The Strategic Impact of an Iranian Nuclear Weapons Capability on Israel SO NUCLEAR THREATS AND SECURITY CHALLENGES SE NATO Science for Peace and Security Series B-Physics and Biophysics LA English DT Proceedings Paper CT NATO Advanced Research Workshop on Preparedness for Nuclear and Radiological Threats CY NOV 18-20, 2014 CL Los Angeles, CA SP NATO AB This paper will address the likely strategic impact of an Iranian nuclear weapons capability on Israeli security, both in terms of the country's regional standing within the Middle East, and in terms of its homeland security issues. It should be emphasized that an Iranian capacity to produce and deploy nuclear weapons in a fairly short period of time will have largely the same strategic impact on Israel as an already existing Iranian nuclear weapons capability because Iran will be able to claim that, by developing this capacity, it will be able to counter Israeli "aggression" in the Middle East, thus enhancing its prestige in the region and beyond. Moreover, an Iranian capability to develop and deploy nuclear weapons may embolden Iran to risk further confrontation with Israel, the United States, and America's Arab allies because a nuclear weapons capability is likely to be perceived in Teheran, particularly by regime hardliners, as an insurance policy against a catastrophic attack on Iran that could threaten the regime's hold on power. Finally, even if Iran does not actually build nuclear weapons, once it has the capacity to build them in a short period of time, Israel will need to think about the implications of their use against Israeli cities and what this means for its homeland security. Given the aforementioned, Iran does not need to actually possess nuclear weapons in order to reap the benefits of being a nuclear power, particularly since there is little evidence to suggest that Iran, although an extremist power, acts irrationally and would actually want to use such weapons against Israel. Despite the anti-Israeli views held by Iran's leadership, Tehran's relationship with Jerusalem seems to have been impacted by Iranian perceptions of their geopolitical interests rather than motivated solely, or even largely, by ideology (Trita Parsi, Treacherous Alliance: The Secret Dealings of Israel, Iran, and the United States (New Haven: Yale University Press, 2008), Kindle Edition, location 3581.). The problem for Israel is that Iran views itself as a major regional player, given its size and historical importance, and this means that it will almost necessarily view Israel, which is arguably the strongest military power in the Middle East, as a rival. This tendency is reinforced by the understanding in Teheran that the key to enhancing Iran's regional influence and undermining American power lays in gaining Arab allies rather than in developing friendly relations with Israel (Dalia Dassa Kaye, Alireza Nader, Parisa Roshan, Israel and Iran: A Dangerous Rivalry (Santa Monica: RAND, 2011), p. 56.). Moreover, Iran takes its self-proclaimed role as a leader in the Islamic world seriously and this too, given the widely perceived view that Israel is occupying the city of Jerusalem, with its Muslim shrines, and oppressing the (mainly Muslim) Palestinian people, also ensures that it stands to benefit more from a state of rivalry with Israel than one of rapprochement (Michael Eisenstadt, The Strategic Culture of the Islamic Republic of Iran: Operational and Policy Implications, MES Monographs, No. 1 (Quantico, VA: Marine Corps University, 2011), p. 3.). This is not to suggest that Iran will have an interest in risking its own security by engaging in a nuclear war with Israel, only that having a nuclear capability of some sort (either existing or easily acquired when needed) will provide Iran with more leverage in its "Cold War" with Israel. This analysis will be organized around three elements: (1) the nature of recent changes in the Middle East and their implications for the rivalry between Israel and Iran, (2) how an Iranian nuclear capability (realized or potential) may impact that rivalry and events in the region more broadly, and (3) a brief discussion of Israeli homeland security/civil defense issues in the context of the extremely low probability, but unimaginably high consequence, possibility of an Iranian nuclear strike on Israel. C1 [Morag, Nadav] Naval Postgrad Sch, Ctr Homeland Def & Secur, Monterey, CA 93943 USA. RP Morag, N (reprint author), Naval Postgrad Sch, Ctr Homeland Def & Secur, Monterey, CA 93943 USA. EM nmorag@nps.edu NR 14 TC 0 Z9 0 U1 2 U2 2 PU SPRINGER PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS SN 1871-465X BN 978-94-017-9936-2; 978-94-017-9894-5; 978-94-017-9893-8 J9 NATO SCI PEACE SEC B PY 2015 BP 135 EP 145 DI 10.1007/978-94-017-9894-5_13 PG 11 WC Multidisciplinary Sciences; Nuclear Science & Technology SC Science & Technology - Other Topics; Nuclear Science & Technology GA BE9EU UT WOS:000377356200013 ER PT S AU Kallhammer, JE Smith, K AF Kallhammer, Jan-Erik Smith, Kip GP IEEE TI Modeling Ratings of In-vehicle Alerts to Pedestrian Encounters in Naturalistic Situations SO 2015 IEEE 18TH INTERNATIONAL CONFERENCE ON INTELLIGENT TRANSPORTATION SYSTEMS SE IEEE International Conference on Intelligent Transportation Systems-ITSC LA English DT Proceedings Paper CT 18th IEEE International Conference on Intelligent Transportation Systems CY SEP 15-18, 2015 CL SPAIN SP IEEE, Int Transportat Syst Soc, CVCEI, Univ Las Palmas Gran Canaria, Ayuntamentiao Las Palmas Gran Canaria, LPA, IEEE Comp Soc, Univ Las Palmas Gran Canaria, Inst Univ Ciencias Tecnologias Ciberneticas DE Intelligent vehicle systems; Vulnerable Road Users safety; Modeling Alerts to Vulnerable Road Users; Vehicle automation ID DRIVERS AB We show how an in-vehicle algorithm that alerts drivers to pedestrians can be defined using an empirical approach that quantifies the relative level with which drivers are likely to accept alerts to pedestrians. The approach was used in two studies to investigate a range of contextual factors known to influence driver ratings of alerts for pedestrians issued by a driver-assistance system. Regression analysis shows that four factors consisting of combinations of pedestrian location and motion relative to the road ahead of the vehicle explain over 80% of the variability in drivers' ratings of alerts. This finding suggests that four contextual factors largely define the perceptual cues that drivers use to rate alerts to pedestrians. The work demonstrates the utility of subjective driver responses to FOT events as a tool to inform the development of pedestrian alerting criteria. C1 [Kallhammer, Jan-Erik] Autoliv Dev AB, Vargarda, Sweden. [Smith, Kip] Naval Postgrad Sch, Monterey, CA USA. RP Kallhammer, JE (reprint author), Autoliv Dev AB, Vargarda, Sweden. EM jan-erik.kallhammer@autoliv.com; kip51smith@gmail.com NR 7 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2153-0009 BN 978-1-4673-6596-3 J9 IEEE INT C INTELL TR PY 2015 BP 831 EP 835 DI 10.1109/ITSC.2015.140 PG 5 WC Transportation Science & Technology SC Transportation GA BE8OT UT WOS:000376668800133 ER PT S AU Petry, F Elmore, P AF Petry, Frederick Elmore, Paul BE Tamir, DE Rishe, ND Kandel, A TI Geospatial Uncertainty Representation: Fuzzy and Rough Set Approaches SO FIFTY YEARS OF FUZZY LOGIC AND ITS APPLICATIONS SE Studies in Fuzziness and Soft Computing LA English DT Article; Book Chapter DE Geographic information systems; Spatial database; Fuzzy sets; Rough sets; Triangulated irregular networks; Indiscernibility relation; Spatial relations; Upper and lower approximations ID SPATIAL QUERIES; BIG DATA; INTEGRATION; INFORMATION; CHALLENGES AB Uncertainty in geospatial data is often considered in the context of geographical information systems which enable a variety of operations and manipulation of spatial data. Here we consider how both fuzzy set and rough set theory has been used to represent geospatial data with uncertainty. Terrain modeling and triangulated irregular networks techniques utilizing fuzzy sets are presented. Rough set theory is overviewed and its application to spatial data is described. Issues of uncertainty in the representation of spatial relationships such as topological and directional relationships are discussed. C1 [Petry, Frederick] Marine Geosci Div, Geospatial Sci & Technol Branch, Bldg 1005, Raleigh, NC USA. [Elmore, Paul] Naval Res Lab, Stennis Space Ctr, Stennis Space Ctr, MS 39529 USA. RP Petry, F (reprint author), Marine Geosci Div, Geospatial Sci & Technol Branch, Bldg 1005, Raleigh, NC USA. EM fred.petry@nrlssc.navy.mil NR 50 TC 1 Z9 1 U1 2 U2 2 PU SPRINGER-VERLAG BERLIN PI BERLIN PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY SN 1434-9922 BN 978-3-319-19683-1; 978-3-319-19682-4 J9 STUD FUZZ SOFT COMP PY 2015 VL 326 BP 483 EP 497 DI 10.1007/978-3-319-19683-1_24 D2 10.1007/978-3-319-19683-1 PG 15 WC Computer Science, Artificial Intelligence; Robotics SC Computer Science; Robotics GA BE6OR UT WOS:000374483600025 ER PT B AU Arrasmith, WW AF Arrasmith, William Wolfgang BA Arrasmith, WW BF Arrasmith, WW TI Introduction to Systems Engineering SO SYSTEMS ENGINEERING AND ANALYSIS OF ELECTRO-OPTICAL AND INFRARED SYSTEMS LA English DT Editorial Material; Book Chapter C1 [Arrasmith, William Wolfgang] US Air Force, New York, NY USA. [Arrasmith, William Wolfgang] Air Force Tech Applicat Ctr, Appl Technol Directorate, Adv Sci & Technol Div, Alsancak, Turkey. [Arrasmith, William Wolfgang] US Naval Acad, Weap & Syst Engn Dept, Annapolis, MD 21402 USA. [Arrasmith, William Wolfgang] Air Force Off Sci Res, Phys & Elect Directorate, Washington, DC USA. [Arrasmith, William Wolfgang] Air Force Res Lab, Flood Beam Expt, Kirtland AFB, NM USA. [Arrasmith, William Wolfgang] Space Div, Teal Ruby Syst Program Off, New York, NY USA. RP Arrasmith, WW (reprint author), Florida Inst Technol, Engn Syst, Melbourne, FL 32901 USA. NR 31 TC 0 Z9 0 U1 0 U2 0 PU CRC PRESS-TAYLOR & FRANCIS GROUP PI BOCA RATON PA 6000 BROKEN SOUND PARKWAY NW, STE 300, BOCA RATON, FL 33487-2742 USA BN 978-1-4665-7993-4; 978-1-4665-7992-7 PY 2015 BP 3 EP 47 D2 10.1201/b18263 PG 45 WC Engineering, Industrial; Engineering, Electrical & Electronic; Optics SC Engineering; Optics GA BE7LR UT WOS:000375468800002 ER PT B AU Arrasmith, WW AF Arrasmith, William Wolfgang BA Arrasmith, WW BF Arrasmith, WW TI Systems Engineering and Analysis of Electro-Optical and Infrared Systems Preface SO SYSTEMS ENGINEERING AND ANALYSIS OF ELECTRO-OPTICAL AND INFRARED SYSTEMS LA English DT Editorial Material; Book Chapter C1 [Arrasmith, William Wolfgang] US Air Force, New York, NY USA. [Arrasmith, William Wolfgang] Air Force Tech Applicat Ctr, Appl Technol Directorate, Adv Sci & Technol Div, Alsancak, Turkey. [Arrasmith, William Wolfgang] US Naval Acad, Weap & Syst Engn Dept, Annapolis, MD 21402 USA. [Arrasmith, William Wolfgang] Air Force Off Sci Res, Phys & Elect Directorate, Washington, DC USA. [Arrasmith, William Wolfgang] Air Force Res Lab, Flood Beam Expt, Kirtland AFB, NM USA. [Arrasmith, William Wolfgang] Space Div, Teal Ruby Syst Program Off, New York, NY USA. RP Arrasmith, WW (reprint author), Florida Inst Technol, Engn Syst, Melbourne, FL 32901 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU CRC PRESS-TAYLOR & FRANCIS GROUP PI BOCA RATON PA 6000 BROKEN SOUND PARKWAY NW, STE 300, BOCA RATON, FL 33487-2742 USA BN 978-1-4665-7993-4; 978-1-4665-7992-7 PY 2015 BP XVII EP XXIII D2 10.1201/b18263 PG 7 WC Engineering, Industrial; Engineering, Electrical & Electronic; Optics SC Engineering; Optics GA BE7LR UT WOS:000375468800001 ER PT B AU Arrasmith, WW AF Arrasmith, William Wolfgang BA Arrasmith, WW BF Arrasmith, WW TI Enterprise Architecture Fundamentals SO SYSTEMS ENGINEERING AND ANALYSIS OF ELECTRO-OPTICAL AND INFRARED SYSTEMS LA English DT Article; Book Chapter C1 [Arrasmith, William Wolfgang] US Air Force, New York, NY USA. [Arrasmith, William Wolfgang] Air Force Tech Applicat Ctr, Appl Technol Directorate, Adv Sci & Technol Div, Alsancak, Turkey. [Arrasmith, William Wolfgang] US Naval Acad, Weap & Syst Engn Dept, Annapolis, MD 21402 USA. [Arrasmith, William Wolfgang] Air Force Off Sci Res, Phys & Elect Directorate, Washington, DC USA. [Arrasmith, William Wolfgang] Air Force Res Lab, Flood Beam Expt, Kirtland AFB, NM USA. [Arrasmith, William Wolfgang] Space Div, Teal Ruby Syst Program Off, New York, NY USA. RP Arrasmith, WW (reprint author), Florida Inst Technol, Engn Syst, Melbourne, FL 32901 USA. NR 36 TC 0 Z9 0 U1 0 U2 0 PU CRC PRESS-TAYLOR & FRANCIS GROUP PI BOCA RATON PA 6000 BROKEN SOUND PARKWAY NW, STE 300, BOCA RATON, FL 33487-2742 USA BN 978-1-4665-7993-4; 978-1-4665-7992-7 PY 2015 BP 49 EP 125 D2 10.1201/b18263 PG 77 WC Engineering, Industrial; Engineering, Electrical & Electronic; Optics SC Engineering; Optics GA BE7LR UT WOS:000375468800003 ER PT B AU Arrasmith, WW AF Arrasmith, William Wolfgang BA Arrasmith, WW BF Arrasmith, WW TI Systems of Systems, Family of Systems, and Systems Engineering SO SYSTEMS ENGINEERING AND ANALYSIS OF ELECTRO-OPTICAL AND INFRARED SYSTEMS LA English DT Article; Book Chapter C1 [Arrasmith, William Wolfgang] US Air Force, New York, NY USA. [Arrasmith, William Wolfgang] Air Force Tech Applicat Ctr, Appl Technol Directorate, Adv Sci & Technol Div, Alsancak, Turkey. [Arrasmith, William Wolfgang] US Naval Acad, Weap & Syst Engn Dept, Annapolis, MD 21402 USA. [Arrasmith, William Wolfgang] Air Force Off Sci Res, Phys & Elect Directorate, Washington, DC USA. [Arrasmith, William Wolfgang] Air Force Res Lab, Flood Beam Expt, Kirtland AFB, NM USA. [Arrasmith, William Wolfgang] Space Div, Teal Ruby Syst Program Off, New York, NY USA. RP Arrasmith, WW (reprint author), Florida Inst Technol, Engn Syst, Melbourne, FL 32901 USA. NR 25 TC 0 Z9 0 U1 0 U2 0 PU CRC PRESS-TAYLOR & FRANCIS GROUP PI BOCA RATON PA 6000 BROKEN SOUND PARKWAY NW, STE 300, BOCA RATON, FL 33487-2742 USA BN 978-1-4665-7993-4; 978-1-4665-7992-7 PY 2015 BP 127 EP 160 D2 10.1201/b18263 PG 34 WC Engineering, Industrial; Engineering, Electrical & Electronic; Optics SC Engineering; Optics GA BE7LR UT WOS:000375468800004 ER PT B AU Arrasmith, WW AF Arrasmith, William Wolfgang BA Arrasmith, WW BF Arrasmith, WW TI Model-Based Systems Engineering SO SYSTEMS ENGINEERING AND ANALYSIS OF ELECTRO-OPTICAL AND INFRARED SYSTEMS LA English DT Article; Book Chapter C1 [Arrasmith, William Wolfgang] US Air Force, New York, NY USA. [Arrasmith, William Wolfgang] Air Force Tech Applicat Ctr, Appl Technol Directorate, Adv Sci & Technol Div, Alsancak, Turkey. [Arrasmith, William Wolfgang] US Naval Acad, Weap & Syst Engn Dept, Annapolis, MD 21402 USA. [Arrasmith, William Wolfgang] Air Force Off Sci Res, Phys & Elect Directorate, Washington, DC USA. [Arrasmith, William Wolfgang] Air Force Res Lab, Flood Beam Expt, Kirtland AFB, NM USA. [Arrasmith, William Wolfgang] Space Div, Teal Ruby Syst Program Off, New York, NY USA. RP Arrasmith, WW (reprint author), Florida Inst Technol, Engn Syst, Melbourne, FL 32901 USA. NR 20 TC 0 Z9 0 U1 0 U2 0 PU CRC PRESS-TAYLOR & FRANCIS GROUP PI BOCA RATON PA 6000 BROKEN SOUND PARKWAY NW, STE 300, BOCA RATON, FL 33487-2742 USA BN 978-1-4665-7993-4; 978-1-4665-7992-7 PY 2015 BP 161 EP 197 D2 10.1201/b18263 PG 37 WC Engineering, Industrial; Engineering, Electrical & Electronic; Optics SC Engineering; Optics GA BE7LR UT WOS:000375468800005 ER PT B AU Arrasmith, WW AF Arrasmith, William Wolfgang BA Arrasmith, WW BF Arrasmith, WW TI Problem Definition SO SYSTEMS ENGINEERING AND ANALYSIS OF ELECTRO-OPTICAL AND INFRARED SYSTEMS LA English DT Article; Book Chapter ID ATMOSPHERE; EMISSIVITY; RADIATION; CAVITIES C1 [Arrasmith, William Wolfgang] US Air Force, New York, NY USA. [Arrasmith, William Wolfgang] Air Force Tech Applicat Ctr, Appl Technol Directorate, Adv Sci & Technol Div, Alsancak, Turkey. [Arrasmith, William Wolfgang] US Naval Acad, Weap & Syst Engn Dept, Annapolis, MD 21402 USA. [Arrasmith, William Wolfgang] Air Force Off Sci Res, Phys & Elect Directorate, Washington, DC USA. [Arrasmith, William Wolfgang] Air Force Res Lab, Flood Beam Expt, Kirtland AFB, NM USA. [Arrasmith, William Wolfgang] Space Div, Teal Ruby Syst Program Off, New York, NY USA. RP Arrasmith, WW (reprint author), Florida Inst Technol, Engn Syst, Melbourne, FL 32901 USA. NR 55 TC 0 Z9 0 U1 0 U2 0 PU CRC PRESS-TAYLOR & FRANCIS GROUP PI BOCA RATON PA 6000 BROKEN SOUND PARKWAY NW, STE 300, BOCA RATON, FL 33487-2742 USA BN 978-1-4665-7993-4; 978-1-4665-7992-7 PY 2015 BP 201 EP 266 D2 10.1201/b18263 PG 66 WC Engineering, Industrial; Engineering, Electrical & Electronic; Optics SC Engineering; Optics GA BE7LR UT WOS:000375468800006 ER PT B AU Arrasmith, WW AF Arrasmith, William Wolfgang BA Arrasmith, WW BF Arrasmith, WW TI Feasibility Studies, Trade Studies, and Alternative Analysis SO SYSTEMS ENGINEERING AND ANALYSIS OF ELECTRO-OPTICAL AND INFRARED SYSTEMS LA English DT Article; Book Chapter C1 [Arrasmith, William Wolfgang] US Air Force, New York, NY USA. [Arrasmith, William Wolfgang] Air Force Tech Applicat Ctr, Appl Technol Directorate, Adv Sci & Technol Div, Alsancak, Turkey. [Arrasmith, William Wolfgang] US Naval Acad, Weap & Syst Engn Dept, Annapolis, MD 21402 USA. [Arrasmith, William Wolfgang] Air Force Off Sci Res, Phys & Elect Directorate, Washington, DC USA. [Arrasmith, William Wolfgang] Air Force Res Lab, Flood Beam Expt, Kirtland AFB, NM USA. [Arrasmith, William Wolfgang] Space Div, Teal Ruby Syst Program Off, New York, NY USA. RP Arrasmith, WW (reprint author), Florida Inst Technol, Engn Syst, Melbourne, FL 32901 USA. NR 26 TC 0 Z9 0 U1 0 U2 0 PU CRC PRESS-TAYLOR & FRANCIS GROUP PI BOCA RATON PA 6000 BROKEN SOUND PARKWAY NW, STE 300, BOCA RATON, FL 33487-2742 USA BN 978-1-4665-7993-4; 978-1-4665-7992-7 PY 2015 BP 267 EP 323 D2 10.1201/b18263 PG 57 WC Engineering, Industrial; Engineering, Electrical & Electronic; Optics SC Engineering; Optics GA BE7LR UT WOS:000375468800007 ER PT B AU Arrasmith, WW AF Arrasmith, William Wolfgang BA Arrasmith, WW BF Arrasmith, WW TI Systems and Requirements SO SYSTEMS ENGINEERING AND ANALYSIS OF ELECTRO-OPTICAL AND INFRARED SYSTEMS LA English DT Article; Book Chapter C1 [Arrasmith, William Wolfgang] US Air Force, New York, NY USA. [Arrasmith, William Wolfgang] Air Force Tech Applicat Ctr, Appl Technol Directorate, Adv Sci & Technol Div, Alsancak, Turkey. [Arrasmith, William Wolfgang] US Naval Acad, Weap & Syst Engn Dept, Annapolis, MD 21402 USA. [Arrasmith, William Wolfgang] Air Force Off Sci Res, Phys & Elect Directorate, Washington, DC USA. [Arrasmith, William Wolfgang] Air Force Res Lab, Flood Beam Expt, Kirtland AFB, NM USA. [Arrasmith, William Wolfgang] Space Div, Teal Ruby Syst Program Off, New York, NY USA. RP Arrasmith, WW (reprint author), Florida Inst Technol, Engn Syst, Melbourne, FL 32901 USA. NR 38 TC 0 Z9 0 U1 0 U2 0 PU CRC PRESS-TAYLOR & FRANCIS GROUP PI BOCA RATON PA 6000 BROKEN SOUND PARKWAY NW, STE 300, BOCA RATON, FL 33487-2742 USA BN 978-1-4665-7993-4; 978-1-4665-7992-7 PY 2015 BP 325 EP 362 D2 10.1201/b18263 PG 38 WC Engineering, Industrial; Engineering, Electrical & Electronic; Optics SC Engineering; Optics GA BE7LR UT WOS:000375468800008 ER PT B AU Arrasmith, WW AF Arrasmith, William Wolfgang BA Arrasmith, WW BF Arrasmith, WW TI Maintenance and Support Planning SO SYSTEMS ENGINEERING AND ANALYSIS OF ELECTRO-OPTICAL AND INFRARED SYSTEMS LA English DT Article; Book Chapter C1 [Arrasmith, William Wolfgang] US Air Force, New York, NY USA. [Arrasmith, William Wolfgang] Air Force Tech Applicat Ctr, Appl Technol Directorate, Adv Sci & Technol Div, Alsancak, Turkey. [Arrasmith, William Wolfgang] US Naval Acad, Weap & Syst Engn Dept, Annapolis, MD 21402 USA. [Arrasmith, William Wolfgang] Air Force Off Sci Res, Phys & Elect Directorate, Washington, DC USA. [Arrasmith, William Wolfgang] Air Force Res Lab, Flood Beam Expt, Kirtland AFB, NM USA. [Arrasmith, William Wolfgang] Space Div, Teal Ruby Syst Program Off, New York, NY USA. RP Arrasmith, WW (reprint author), Florida Inst Technol, Engn Syst, Melbourne, FL 32901 USA. NR 22 TC 0 Z9 0 U1 0 U2 0 PU CRC PRESS-TAYLOR & FRANCIS GROUP PI BOCA RATON PA 6000 BROKEN SOUND PARKWAY NW, STE 300, BOCA RATON, FL 33487-2742 USA BN 978-1-4665-7993-4; 978-1-4665-7992-7 PY 2015 BP 363 EP 397 D2 10.1201/b18263 PG 35 WC Engineering, Industrial; Engineering, Electrical & Electronic; Optics SC Engineering; Optics GA BE7LR UT WOS:000375468800009 ER PT B AU Arrasmith, WW AF Arrasmith, William Wolfgang BA Arrasmith, WW BF Arrasmith, WW TI Technical Performance Measures and Metrics SO SYSTEMS ENGINEERING AND ANALYSIS OF ELECTRO-OPTICAL AND INFRARED SYSTEMS LA English DT Article; Book Chapter C1 [Arrasmith, William Wolfgang] US Air Force, New York, NY USA. [Arrasmith, William Wolfgang] Air Force Tech Applicat Ctr, Appl Technol Directorate, Adv Sci & Technol Div, Alsancak, Turkey. [Arrasmith, William Wolfgang] US Naval Acad, Weap & Syst Engn Dept, Annapolis, MD 21402 USA. [Arrasmith, William Wolfgang] Air Force Off Sci Res, Phys & Elect Directorate, Washington, DC USA. [Arrasmith, William Wolfgang] Air Force Res Lab, Flood Beam Expt, Kirtland AFB, NM USA. [Arrasmith, William Wolfgang] Space Div, Teal Ruby Syst Program Off, New York, NY USA. RP Arrasmith, WW (reprint author), Florida Inst Technol, Engn Syst, Melbourne, FL 32901 USA. NR 29 TC 0 Z9 0 U1 0 U2 0 PU CRC PRESS-TAYLOR & FRANCIS GROUP PI BOCA RATON PA 6000 BROKEN SOUND PARKWAY NW, STE 300, BOCA RATON, FL 33487-2742 USA BN 978-1-4665-7993-4; 978-1-4665-7992-7 PY 2015 BP 399 EP 451 D2 10.1201/b18263 PG 53 WC Engineering, Industrial; Engineering, Electrical & Electronic; Optics SC Engineering; Optics GA BE7LR UT WOS:000375468800010 ER PT B AU Arrasmith, WW AF Arrasmith, William Wolfgang BA Arrasmith, WW BF Arrasmith, WW TI Functional Analysis and Detector Cooling SO SYSTEMS ENGINEERING AND ANALYSIS OF ELECTRO-OPTICAL AND INFRARED SYSTEMS LA English DT Article; Book Chapter ID SYSTEMS C1 [Arrasmith, William Wolfgang] US Air Force, New York, NY USA. [Arrasmith, William Wolfgang] Air Force Tech Applicat Ctr, Appl Technol Directorate, Adv Sci & Technol Div, Alsancak, Turkey. [Arrasmith, William Wolfgang] US Naval Acad, Weap & Syst Engn Dept, Annapolis, MD 21402 USA. [Arrasmith, William Wolfgang] Air Force Off Sci Res, Phys & Elect Directorate, Washington, DC USA. [Arrasmith, William Wolfgang] Air Force Res Lab, Flood Beam Expt, Kirtland AFB, NM USA. [Arrasmith, William Wolfgang] Space Div, Teal Ruby Syst Program Off, New York, NY USA. RP Arrasmith, WW (reprint author), Florida Inst Technol, Engn Syst, Melbourne, FL 32901 USA. NR 42 TC 0 Z9 0 U1 0 U2 0 PU CRC PRESS-TAYLOR & FRANCIS GROUP PI BOCA RATON PA 6000 BROKEN SOUND PARKWAY NW, STE 300, BOCA RATON, FL 33487-2742 USA BN 978-1-4665-7993-4; 978-1-4665-7992-7 PY 2015 BP 453 EP 500 D2 10.1201/b18263 PG 48 WC Engineering, Industrial; Engineering, Electrical & Electronic; Optics SC Engineering; Optics GA BE7LR UT WOS:000375468800011 ER PT B AU Arrasmith, WW AF Arrasmith, William Wolfgang BA Arrasmith, WW BF Arrasmith, WW TI Requirements Allocation SO SYSTEMS ENGINEERING AND ANALYSIS OF ELECTRO-OPTICAL AND INFRARED SYSTEMS LA English DT Article; Book Chapter C1 [Arrasmith, William Wolfgang] US Air Force, New York, NY USA. [Arrasmith, William Wolfgang] Air Force Tech Applicat Ctr, Appl Technol Directorate, Adv Sci & Technol Div, Alsancak, Turkey. [Arrasmith, William Wolfgang] US Naval Acad, Weap & Syst Engn Dept, Annapolis, MD 21402 USA. [Arrasmith, William Wolfgang] Air Force Off Sci Res, Phys & Elect Directorate, Washington, DC USA. [Arrasmith, William Wolfgang] Air Force Res Lab, Flood Beam Expt, Kirtland AFB, NM USA. [Arrasmith, William Wolfgang] Space Div, Teal Ruby Syst Program Off, New York, NY USA. RP Arrasmith, WW (reprint author), Florida Inst Technol, Engn Syst, Melbourne, FL 32901 USA. NR 32 TC 0 Z9 0 U1 0 U2 0 PU CRC PRESS-TAYLOR & FRANCIS GROUP PI BOCA RATON PA 6000 BROKEN SOUND PARKWAY NW, STE 300, BOCA RATON, FL 33487-2742 USA BN 978-1-4665-7993-4; 978-1-4665-7992-7 PY 2015 BP 501 EP 537 D2 10.1201/b18263 PG 37 WC Engineering, Industrial; Engineering, Electrical & Electronic; Optics SC Engineering; Optics GA BE7LR UT WOS:000375468800012 ER PT B AU Arrasmith, WW AF Arrasmith, William Wolfgang BA Arrasmith, WW BF Arrasmith, WW TI Introduction to Systems Design SO SYSTEMS ENGINEERING AND ANALYSIS OF ELECTRO-OPTICAL AND INFRARED SYSTEMS LA English DT Editorial Material; Book Chapter C1 [Arrasmith, William Wolfgang] US Air Force, New York, NY USA. [Arrasmith, William Wolfgang] Air Force Tech Applicat Ctr, Appl Technol Directorate, Adv Sci & Technol Div, Alsancak, Turkey. [Arrasmith, William Wolfgang] US Naval Acad, Weap & Syst Engn Dept, Annapolis, MD 21402 USA. [Arrasmith, William Wolfgang] Air Force Off Sci Res, Phys & Elect Directorate, Washington, DC USA. [Arrasmith, William Wolfgang] Air Force Res Lab, Flood Beam Expt, Kirtland AFB, NM USA. [Arrasmith, William Wolfgang] Space Div, Teal Ruby Syst Program Off, New York, NY USA. RP Arrasmith, WW (reprint author), Florida Inst Technol, Engn Syst, Melbourne, FL 32901 USA. NR 24 TC 0 Z9 0 U1 0 U2 0 PU CRC PRESS-TAYLOR & FRANCIS GROUP PI BOCA RATON PA 6000 BROKEN SOUND PARKWAY NW, STE 300, BOCA RATON, FL 33487-2742 USA BN 978-1-4665-7993-4; 978-1-4665-7992-7 PY 2015 BP 539 EP 586 D2 10.1201/b18263 PG 48 WC Engineering, Industrial; Engineering, Electrical & Electronic; Optics SC Engineering; Optics GA BE7LR UT WOS:000375468800013 ER PT B AU Arrasmith, WW AF Arrasmith, William Wolfgang BA Arrasmith, WW BF Arrasmith, WW TI Quality Production and Manufacturing SO SYSTEMS ENGINEERING AND ANALYSIS OF ELECTRO-OPTICAL AND INFRARED SYSTEMS LA English DT Article; Book Chapter ID STATISTICAL PROCESS-CONTROL; TAGUCHI METHOD; OPTIMIZATION; PERFORMANCE C1 [Arrasmith, William Wolfgang] US Air Force, New York, NY USA. [Arrasmith, William Wolfgang] Air Force Tech Applicat Ctr, Appl Technol Directorate, Adv Sci & Technol Div, Alsancak, Turkey. [Arrasmith, William Wolfgang] US Naval Acad, Weap & Syst Engn Dept, Annapolis, MD 21402 USA. [Arrasmith, William Wolfgang] Air Force Off Sci Res, Phys & Elect Directorate, Washington, DC USA. [Arrasmith, William Wolfgang] Air Force Res Lab, Flood Beam Expt, Kirtland AFB, NM USA. [Arrasmith, William Wolfgang] Space Div, Teal Ruby Syst Program Off, New York, NY USA. RP Arrasmith, WW (reprint author), Florida Inst Technol, Engn Syst, Melbourne, FL 32901 USA. NR 26 TC 0 Z9 0 U1 0 U2 0 PU CRC PRESS-TAYLOR & FRANCIS GROUP PI BOCA RATON PA 6000 BROKEN SOUND PARKWAY NW, STE 300, BOCA RATON, FL 33487-2742 USA BN 978-1-4665-7993-4; 978-1-4665-7992-7 PY 2015 BP 587 EP 651 D2 10.1201/b18263 PG 65 WC Engineering, Industrial; Engineering, Electrical & Electronic; Optics SC Engineering; Optics GA BE7LR UT WOS:000375468800014 ER PT B AU Arrasmith, WW AF Arrasmith, William Wolfgang BA Arrasmith, WW BF Arrasmith, WW TI Optical Systems Testing and Evaluation SO SYSTEMS ENGINEERING AND ANALYSIS OF ELECTRO-OPTICAL AND INFRARED SYSTEMS LA English DT Article; Book Chapter C1 [Arrasmith, William Wolfgang] US Air Force, New York, NY USA. [Arrasmith, William Wolfgang] Air Force Tech Applicat Ctr, Appl Technol Directorate, Adv Sci & Technol Div, Alsancak, Turkey. [Arrasmith, William Wolfgang] US Naval Acad, Weap & Syst Engn Dept, Annapolis, MD 21402 USA. [Arrasmith, William Wolfgang] Air Force Off Sci Res, Phys & Elect Directorate, Washington, DC USA. [Arrasmith, William Wolfgang] Air Force Res Lab, Flood Beam Expt, Kirtland AFB, NM USA. [Arrasmith, William Wolfgang] Space Div, Teal Ruby Syst Program Off, New York, NY USA. RP Arrasmith, WW (reprint author), Florida Inst Technol, Engn Syst, Melbourne, FL 32901 USA. NR 36 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 978-1-4665-7993-4; 978-1-4665-7992-7 PY 2015 BP 653 EP 689 D2 10.1201/b18263 PG 37 WC Engineering, Industrial; Engineering, Electrical & Electronic; Optics SC Engineering; Optics GA BE7LR UT WOS:000375468800015 ER PT B AU Arrasmith, WW AF Arrasmith, William Wolfgang BA Arrasmith, WW BF Arrasmith, WW TI Disposal and Retirement of Optical Systems SO SYSTEMS ENGINEERING AND ANALYSIS OF ELECTRO-OPTICAL AND INFRARED SYSTEMS LA English DT Article; Book Chapter C1 [Arrasmith, William Wolfgang] US Air Force, New York, NY USA. [Arrasmith, William Wolfgang] Air Force Tech Applicat Ctr, Appl Technol Directorate, Adv Sci & Technol Div, Alsancak, Turkey. [Arrasmith, William Wolfgang] US Naval Acad, Weap & Syst Engn Dept, Annapolis, MD 21402 USA. [Arrasmith, William Wolfgang] Air Force Off Sci Res, Phys & Elect Directorate, Washington, DC USA. [Arrasmith, William Wolfgang] Air Force Res Lab, Flood Beam Expt, Kirtland AFB, NM USA. [Arrasmith, William Wolfgang] Space Div, Teal Ruby Syst Program Off, New York, NY USA. RP Arrasmith, WW (reprint author), Florida Inst Technol, Engn Syst, Melbourne, FL 32901 USA. NR 23 TC 0 Z9 0 U1 0 U2 0 PU CRC PRESS-TAYLOR & FRANCIS GROUP PI BOCA RATON PA 6000 BROKEN SOUND PARKWAY NW, STE 300, BOCA RATON, FL 33487-2742 USA BN 978-1-4665-7993-4; 978-1-4665-7992-7 PY 2015 BP 737 EP 770 D2 10.1201/b18263 PG 34 WC Engineering, Industrial; Engineering, Electrical & Electronic; Optics SC Engineering; Optics GA BE7LR UT WOS:000375468800017 ER PT B AU Arrasmith, WW AF Arrasmith, William Wolfgang BA Arrasmith, WW BF Arrasmith, WW TI Mathematical Formulas SO SYSTEMS ENGINEERING AND ANALYSIS OF ELECTRO-OPTICAL AND INFRARED SYSTEMS LA English DT Article; Book Chapter C1 [Arrasmith, William Wolfgang] US Air Force, New York, NY USA. [Arrasmith, William Wolfgang] Air Force Tech Applicat Ctr, Appl Technol Directorate, Adv Sci & Technol Div, Alsancak, Turkey. [Arrasmith, William Wolfgang] US Naval Acad, Weap & Syst Engn Dept, Annapolis, MD 21402 USA. [Arrasmith, William Wolfgang] Air Force Off Sci Res, Phys & Elect Directorate, Washington, DC USA. [Arrasmith, William Wolfgang] Air Force Res Lab, Flood Beam Expt, Kirtland AFB, NM USA. [Arrasmith, William Wolfgang] Space Div, Teal Ruby Syst Program Off, New York, NY USA. RP Arrasmith, WW (reprint author), Florida Inst Technol, Engn Syst, Melbourne, FL 32901 USA. NR 4 TC 0 Z9 0 U1 0 U2 0 PU CRC PRESS-TAYLOR & FRANCIS GROUP PI BOCA RATON PA 6000 BROKEN SOUND PARKWAY NW, STE 300, BOCA RATON, FL 33487-2742 USA BN 978-1-4665-7993-4; 978-1-4665-7992-7 PY 2015 BP 771 EP 792 D2 10.1201/b18263 PG 22 WC Engineering, Industrial; Engineering, Electrical & Electronic; Optics SC Engineering; Optics GA BE7LR UT WOS:000375468800018 ER PT B AU Arrasmith, WW AF Arrasmith, William Wolfgang BA Arrasmith, WW BF Arrasmith, WW TI Optical System Use and Support SO SYSTEMS ENGINEERING AND ANALYSIS OF ELECTRO-OPTICAL AND INFRARED SYSTEMS LA English DT Article; Book Chapter C1 [Arrasmith, William Wolfgang] US Air Force, New York, NY USA. [Arrasmith, William Wolfgang] Air Force Tech Applicat Ctr, Appl Technol Directorate, Adv Sci & Technol Div, Alsancak, Turkey. [Arrasmith, William Wolfgang] US Naval Acad, Weap & Syst Engn Dept, Annapolis, MD 21402 USA. [Arrasmith, William Wolfgang] Air Force Off Sci Res, Phys & Elect Directorate, Washington, DC USA. [Arrasmith, William Wolfgang] Air Force Res Lab, Flood Beam Expt, Kirtland AFB, NM USA. [Arrasmith, William Wolfgang] Space Div, Teal Ruby Syst Program Off, New York, NY USA. RP Arrasmith, WW (reprint author), Florida Inst Technol, Engn Syst, Melbourne, FL 32901 USA. NR 52 TC 0 Z9 0 U1 0 U2 0 PU CRC PRESS-TAYLOR & FRANCIS GROUP PI BOCA RATON PA 6000 BROKEN SOUND PARKWAY NW, STE 300, BOCA RATON, FL 33487-2742 USA BN 978-1-4665-7993-4; 978-1-4665-7992-7 PY 2015 BP 691 EP 735 D2 10.1201/b18263 PG 45 WC Engineering, Industrial; Engineering, Electrical & Electronic; Optics SC Engineering; Optics GA BE7LR UT WOS:000375468800016 ER PT S AU Holzer, H Symonds, CL Williams, FJ AF Holzer, Harold Symonds, Craig L. Williams, Frank J. BE Holzer, H Symonds, CL Williams, FJ TI A Lincoln Forum Book Exploring Lincoln Great Historians Reappraise Our Greatest President Introduction SO EXPLORING LINCOLN: GREAT HISTORIANS REAPPRAISE OUR GREATEST PRESIDENT SE Norths Civil War LA English DT Editorial Material; Book Chapter C1 [Holzer, Harold] New York Hist Soc, 170 Cent Pk W, New York, NY 10024 USA. [Holzer, Harold] Abraham Lincoln Bicentennial Fdn, London, England. [Symonds, Craig L.] US Naval Acad, Hist, Annapolis, MD 21402 USA. [Williams, Frank J.] Lincoln Forum, Lincoln, England. RP Holzer, H (reprint author), New York Hist Soc, 170 Cent Pk W, New York, NY 10024 USA. NR 447 TC 0 Z9 0 U1 0 U2 0 PU FORDHAM UNIV PRESS PI BRONX PA UNIV BOX L, BRONX, NY 10458 USA SN 1089-8719 BN 978-0-8232-6563-3; 978-0-8232-6562-6 J9 N CIVIL WAR PY 2015 BP 1 EP + PG 37 WC History SC History GA BE7HW UT WOS:000375286000001 ER PT S AU Symonds, CL AF Symonds, Craig L. BE Holzer, H Symonds, CL Williams, FJ TI Abraham Lincoln, Admiral-in-Chief SO EXPLORING LINCOLN: GREAT HISTORIANS REAPPRAISE OUR GREATEST PRESIDENT SE Norths Civil War LA English DT Article; Book Chapter C1 [Symonds, Craig L.] US Naval Acad, Hist, Annapolis, MD 21402 USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU FORDHAM UNIV PRESS PI BRONX PA UNIV BOX L, BRONX, NY 10458 USA SN 1089-8719 BN 978-0-8232-6563-3; 978-0-8232-6562-6 J9 N CIVIL WAR PY 2015 BP 88 EP 106 PG 19 WC History SC History GA BE7HW UT WOS:000375286000007 ER PT S AU Wolak, MA Zhu, L AF Wolak, Mason A. Zhu, Lei BE Lendlein, A Tirelli, N Weiss, RA Xie, T TI A Robust Multilayer Dielectric Elastomer Actuator SO MULTIFUNCTIONAL POLYMERIC AND HYBRID MATERIALS SE Materials Research Society Symposium Proceedings LA English DT Proceedings Paper CT Symposium on Multifunctional Polymeric and Hybrid Materials / MRS Fall Meeting CY NOV 30-DEC 05, 2014 CL Boston, MA SP FEI Deutschland GmbH, Royal Soc Chem, RSC Mat Horizons ID GRADIENT REFRACTIVE-INDEX; POLARIZATION; BREAKDOWN; FILMS AB We recently fabricated and characterized a new class of multilayer dielectric elastomer films comprising alternating layers of two different polymers, at least one of which is an elastomer. The films discussed here contain THV (a terpolymer of poly(vinylidene fluoride)) and poly(ethylene octene) [EO] elastomer. The multilayer structure provides improved dielectric and electromechanical performance relative to monolithic films of THV or BO. These properties are controlled by the composition and the layer structure. For example, increasing the concentration of the elastomeric EO component increases the maximum axial strain (sz). Layering EO with THV also increases the breakdown strength (E-B similar to 265-300 V/mu m) relative to monolithic BO (E-B similar to 150 V/mu m) or THV (E-B similar to 245 V/mu m) control films. This enhancement in breakdown strength is consistent with a barrier effect that is also observed in multilayer polymer capacitor films. The increase in breakdown strength allows 512-layer 75 vol% EO/25 vol% THV films to achieve maximum axial strains of s(z) nearly 4%, higher than can be attained by either EO "or THV films alone. In addition, layering reduces remnant strain and electromechanical hysteresis by limiting the effective field within the THV layers. The 75% EO/25% THV films show robust operational longevity with little loss in axial strain when subjected to repeated actuation at E-max = 225 V/mu m (producing s(z) = 2.2%). Under these conditions, we observe 3,000 consecutive actuation cycles with no electrical breakdown. In comparison, single component EO control films undergo electrical breakdown at this field and THV control films survive only a few hundred actuation cycles under these conditions. The results demonstrate that multilayering is an effective technique to increase the dielectric strength of elastomer materials and in turn improve upon strain and operational longevity (repeated actuation cycles) characteristics. C1 [Wolak, Mason A.] US Naval Res Lab, Opt Sci Div, Washington, DC 20375 USA. [Zhu, Lei] Case Western Reserve Univ, Macromol Sci & Engn, Cleveland, OH 44106 USA. RP Wolak, MA (reprint author), US Naval Res Lab, Opt Sci Div, Washington, DC 20375 USA. NR 18 TC 0 Z9 0 U1 2 U2 2 PU MATERIALS RESEARCH SOC PI WARRENDALE PA 506 KEYSTONE DRIVE, WARRENDALE, PA 15088-7563 USA SN 0272-9172 BN 978-1-60511-695-2 J9 MATER RES SOC SYMP P PY 2015 VL 1718 BP 145 EP 155 DI 10.1557/opl.2015.525 PG 11 WC Materials Science, Composites; Polymer Science SC Materials Science; Polymer Science GA BE8FP UT WOS:000376420800022 ER PT J AU Cui, X Liu, P Fang, E Lua, J Hart, DC AF Cui, X. Liu, P. Fang, E. Lua, J. Hart, D. C. BE Xiao, X Loos, A Liu, D TI Composite Patch Repair of Cracked Aluminum Structures SO PROCEEDINGS OF THE AMERICAN SOCIETY FOR COMPOSITES: THIRTIETH TECHNICAL CONFERENCE LA English DT Proceedings Paper CT 30th Technical Conference of the American-Society-for-Composites CY SEP 28-30, 2015 CL East Lansing, MI SP Amer Soc Composites ID BONDED JOINTS; PROPAGATION; PANEL AB A bonded composite patch repair of damaged metallic structures has many advantages over traditional welding and bolted patch repair, such as no new stress concentration, design flexibility, high fatigue and corrosion resistance, and low cost. The effectiveness and reliability of a repair are highly reliant on the patch design, bondline properties, and processing and fabrication parameters. To explore an optimal repair within a design space, most of the current modeling and simulations are performed based on a single failure mechanism along the bondline without considering other aging and damage mechanisms in the composite patch and aluminum structures. A Hybrid Structure Evaluation and Fatigue Damage Assessment (HYSEFDA) toolkit based on an Abaqus/Implicit platform has been developed to access the residual strength and fatigue life of a composite patch repaired metallic structure. A mesh independent, phantom-paired element based extended finite element method (XFEM) and a cohesive spring element is employed to describe the discrete cracks in the metallic layer and the adhesive interface between the metal layer and the composite patch, respectively. A virtual crack closure technique (VCCT) approach is adopted to extract the energy release rate at the crack tip and delamination front, which is tracked by a developed geometrical mapping algorithm. In order to capture other damage and aging mechanisms, a continuum damage mechanics (CDM) approach is applied to characterize inter and intra ply damage. In addition, the plasticity induced crack closure effect is also investigated by implementing a plastic hardening model into the HYSEFDA toolkit. The HYSEFDA toolkit is used to evaluate the fatigue life of an aluminum plate repaired by E-Glass epoxy composite patch tested by the Naval Surface Warfare Center, Carderock Division. Parametric studies are performed to examine the effects of patch damage on the bridging of a fatigue crack in an aluminum plate. C1 [Cui, X.; Liu, P.; Fang, E.; Lua, J.] Global Engn & Mat Inc, 1 Airport Pl,Suite 1, Princeton, NJ 08540 USA. [Hart, D. C.] Naval Surface Warfare Ctr, Carderock Div, Bethesda, MD 20084 USA. RP Cui, X (reprint author), Global Engn & Mat Inc, 1 Airport Pl,Suite 1, Princeton, NJ 08540 USA. NR 12 TC 0 Z9 0 U1 3 U2 3 PU DESTECH PUBLICATIONS, INC PI LANCASTER PA 439 DUKE STREET, LANCASTER, PA 17602-4967 USA BN 978-1-60595-225-3 PY 2015 BP 1389 EP 1404 PG 16 WC Engineering, Mechanical; Materials Science, Composites SC Engineering; Materials Science GA BE7MI UT WOS:000375565100107 ER PT J AU Kwon, YW Millhouse, SC Knutton, SC Arceneux, S AF Kwon, Y. W. Millhouse, S. C. Knutton, S. C. Arceneux, S. BE Xiao, X Loos, A Liu, D TI Dynamic Response of Composite Plates Moving in Water SO PROCEEDINGS OF THE AMERICAN SOCIETY FOR COMPOSITES: THIRTIETH TECHNICAL CONFERENCE LA English DT Proceedings Paper CT 30th Technical Conference of the American-Society-for-Composites CY SEP 28-30, 2015 CL East Lansing, MI SP Amer Soc Composites ID FLUID-STRUCTURE INTERACTION AB This study investigated dynamic responses of composite plates travelling inside a tow tank while the speed of the plate increased from zero to various steady-state values and remained at the steady state values. Both experimental and numerical studies were undertaken. For the experimental part, strain responses of the plate were measured using strain gages. The resultant drag forces were also measured. In order to determine the effect of the composite plate with fluid-structure interaction, an aluminum plate of the same size was also tested and its results were compared to that of the composite plate. The composite plates were also tested under various setting angles relative to the towing direction. Some experimental data were compared to numerical results to validate the computational model. After validation, various cases were examined numerically which could not be tested physically in the tow tank. The drag forces and maximum stresses/strains were much greater during the transient period of the increasing speed than at the steady state speed. Additionally, the hydrodynamic loading was greater on the polymer composite plate than on the aluminum plate of the same size. Therefore, design and analysis of composite structures moving in water should consider the drag force during the transient motion including fluid-structure interaction. C1 [Kwon, Y. W.; Millhouse, S. C.; Knutton, S. C.; Arceneux, S.] Naval Postgrad Sch, Dept Mech & Aerosp Engn, 700 Dyer Rd, Monterey, CA 93943 USA. RP Kwon, YW (reprint author), Naval Postgrad Sch, Dept Mech & Aerosp Engn, 700 Dyer Rd, Monterey, CA 93943 USA. NR 4 TC 0 Z9 0 U1 1 U2 1 PU DESTECH PUBLICATIONS, INC PI LANCASTER PA 439 DUKE STREET, LANCASTER, PA 17602-4967 USA BN 978-1-60595-225-3 PY 2015 BP 2283 EP 2293 PG 11 WC Engineering, Mechanical; Materials Science, Composites SC Engineering; Materials Science GA BE7MI UT WOS:000375565100175 ER PT J AU Adnan, A Qidwai, S Bagchi, A AF Adnan, A. Qidwai, S. Bagchi, A. BE Xiao, X Loos, A Liu, D TI Viscoelastic Response of Microtubule - Tau Proteins Assembly during Axonal Stretch: Combined Atomistic and Continuum Predictions SO PROCEEDINGS OF THE AMERICAN SOCIETY FOR COMPOSITES: THIRTIETH TECHNICAL CONFERENCE LA English DT Proceedings Paper CT 30th Technical Conference of the American-Society-for-Composites CY SEP 28-30, 2015 CL East Lansing, MI SP Amer Soc Composites ID SODIUM-CHANNELS; INJURY; TETRODOTOXIN AB It is believed that damage during traumatic brain injury is a multiscale process that begins from the axonal substructures. The axonal cytoskeleton can be viewed as a nanofiber reinforced composite structure where nanoscale microtubules are arranged in staggered arrays and cross-linked by tau proteins. The unique viscoelastic nature of axons is thought to govern the damage during traumatic brain injury. Recent studies suggest that dynamic loading of axons may lead to microtubule or tau protein failure, depending on the rate of loading. In particular, it has been found that the viscoelastic behavior of tau proteins leads to mechanical breaking of microtubules at high strain rates. At small strain rates, large extension of tau without failure allows for reversible sliding of microtubules without any damage. Despite experimental and computational evidences suggesting that microtubule and tau protein are both viscoelastic, microtubules have been considered as elastic material in these studies for simplicity. Here, inspired by the earlier works, we have developed a modified shear-lag model to predict axonal damage under dynamic loading conditions. In our model, we have considered both microtubule and tau protein as viscoelastic materials. We have assumed that the viscoelastic response of these two materials can be described by the two-parameter Kelvin model. We have employed full atomistic computations to determine the stiffness and viscosity of microtubules and tau proteins. We have then studied the effect of strain rate on the viscoelastic response of microstubule-tau protein assembly. We have attempted to determine a phase diagram in terms of loading rate and microtubule length to isolate the two possible axonal deformation modes, namely microtubule failure due to excessive stretch and reversible microtubule sliding due to tau protein stretch. C1 [Adnan, A.] Univ Texas Arlington, Mech & Aerosp Engn, Arlington, TX 76019 USA. [Qidwai, S.; Bagchi, A.] US Naval Res Lab, Multifunct Mat Branch, Washington, DC USA. RP Adnan, A (reprint author), Univ Texas Arlington, Mech & Aerosp Engn, Arlington, TX 76019 USA. EM aadnan@uta.edu NR 16 TC 0 Z9 0 U1 0 U2 0 PU DESTECH PUBLICATIONS, INC PI LANCASTER PA 439 DUKE STREET, LANCASTER, PA 17602-4967 USA BN 978-1-60595-225-3 PY 2015 BP 2817 EP 2826 PG 10 WC Engineering, Mechanical; Materials Science, Composites SC Engineering; Materials Science GA BE7MI UT WOS:000375565100216 ER PT S AU Gonzalez-Burgueno, A Santiago, S Escobar, S Meadows, C Meseguer, J AF Gonzalez-Burgueno, Antonio Santiago, Sonia Escobar, Santiago Meadows, Catherine Meseguer, Jose BE Chen, L Matsuo, S TI Analysis of the PKCS#11 API Using the Maude-NPA Tool SO SECURITY STANDARDISATION RESEARCH, SSR 2015 SE Lecture Notes in Computer Science LA English DT Proceedings Paper CT 2nd International Conference on Security Standardisation Research (SSR) CY DEC 15-16, 2015 CL Internet Initiat Japan, Tokyo, JAPAN HO Internet Initiat Japan DE PKCS#11; Cryptographic application programming interfaces (cryptographic APIs); Symbolic cryptographic protocol analysis; Maude-NPA ID NRL PROTOCOL ANALYZER; KEY MANAGEMENT; SECURITY AB Cryptographic Application Programmer Interfaces (Crypto APIs) are designed to allow a secure interoperation between applications and cryptographic devices such as smartcards and Hardware Security Modules (HSMs). However, several Crypto APIs have been shown to be subject to attacks in which sensitive information is disclosed to an attacker, such as the RSA Laboratories Public Key Standards PKCS#11, an API widely adopted in industry. Recently, there has been a growing interest on applying automated crypto protocol analysis methods to formally analyze APIs. However, the PKCS#11 has been proven difficult to analyze using such methods since it involves non-monotonic mutable global state. In this paper we specify and analyze the PKCS#11 in Maude-NPA, a general purpose crypto protocol analysis tool. C1 [Gonzalez-Burgueno, Antonio] Univ Oslo, Oslo, Norway. [Santiago, Sonia; Meseguer, Jose] Univ Illinois, Champaign, IL USA. [Escobar, Santiago] Univ Politecn Valencia, DSIC ELP, E-46022 Valencia, Spain. [Meadows, Catherine] Naval Res Lab, Washington, DC 20375 USA. RP Meadows, C (reprint author), Naval Res Lab, Washington, DC 20375 USA. EM antonigo@ifi.uio.no; soniasp@illinois.edu; sescobar@dsic.upv.es; meadows@itd.nrl.navy.mil; meseguer@illinois.edu RI Escobar, Santiago/C-9589-2012 OI Escobar, Santiago/0000-0002-3550-4781 NR 30 TC 0 Z9 0 U1 0 U2 0 PU SPRINGER INT PUBLISHING AG PI CHAM PA GEWERBESTRASSE 11, CHAM, CH-6330, SWITZERLAND SN 0302-9743 BN 978-3-319-27152-1; 978-3-319-27151-4 J9 LECT NOTES COMPUT SC PY 2015 VL 9497 BP 86 EP 106 DI 10.1007/978-3-319-27152-1_5 PG 21 WC Computer Science, Information Systems; Computer Science, Software Engineering; Computer Science, Theory & Methods SC Computer Science GA BE7GN UT WOS:000375224200005 ER PT S AU Miller, CA Walls, TJ AF Miller, Corey A. Walls, Thomas J. BE Bebis, G Boyle, R Parvin, B Koracin, D Pavlidis, I Feris, R McGraw, T Elendt, M Kopper, R Ragan, E Ye, Z Weber, G TI Hyperspectral Scene Analysis via Structure from Motion SO ADVANCES IN VISUAL COMPUTING, PT I (ISVC 2015) SE Lecture Notes in Computer Science LA English DT Proceedings Paper CT 11th International Symposium on Visual Computing (ISVC) CY DEC 14-16, 2015 CL Las Vegas, NV SP UNR, Desert Res Inst, LBNL, NASA Ames, BAE Syst, Intel, Ford, Hewlett Packard, Mitsubishi Elec Res Labs, Toyota, Gen Elect, Berkeley Lab AB We present an overview of a structure from motion (SFM) pipeline for processing hyperspectral imagery (HSI), and demonstrate the data exploitation advantages associated with post-processing HSI data in a 3D environment. Using only raw HSI datacubes as input, we leverage HSI anomaly detection and spectral matching to create a 3D spatial model of the scene being imaged. The resulting 3D space provides an intuitive basis for all forms of HSI analysis. We demonstrate the usefulness of the proposed HSI SFM pipeline through an experimental data set collected using an aerial hyperspectral sensor. C1 [Miller, Corey A.; Walls, Thomas J.] Naval Res Lab, 4555 Overlook Ave, Washington, DC 20375 USA. RP Miller, CA (reprint author), Naval Res Lab, 4555 Overlook Ave, Washington, DC 20375 USA. EM corey.miller@nrl.navy.mil NR 15 TC 0 Z9 0 U1 3 U2 3 PU SPRINGER INT PUBLISHING AG PI CHAM PA GEWERBESTRASSE 11, CHAM, CH-6330, SWITZERLAND SN 0302-9743 BN 978-3-319-27857-5; 978-3-319-27856-8 J9 LECT NOTES COMPUT SC PY 2015 VL 9474 BP 728 EP 738 DI 10.1007/978-3-319-27857-5_65 PG 11 WC Computer Science, Artificial Intelligence; Computer Science, Interdisciplinary Applications; Computer Science, Theory & Methods; Imaging Science & Photographic Technology SC Computer Science; Imaging Science & Photographic Technology GA BE8FE UT WOS:000376400300065 ER PT J AU McDevitt, M AF McDevitt, Michael TI The South China Sea: Island Building and Evolving U.S. Policy SO AMERICAN FOREIGN POLICY INTERESTS LA English DT Article DE China; PLA; Spratly Islands; South China Sea; Vietnam AB This paper explores the growing involvement of the U.S. security establishment in declaratory United States South China Sea (SCS) policy, a trend that has been building over 2014-15 because of China's island building in the South China Sea. The focus of that policy is that China's newly created SCS islands will not constrain legal U.S. maritime activity on, under, and over the high seas. This was announced by the Secretary of Defense, not the Secretary of State, in Singapore in May 2015, and was a response to the disproportionately large scale of China's unannounced activity that was turning rocks and submerged shoals into credible military outposts. China was accused of undermining trust by introducing a military power dimension to the already complicated sovereignty disputes in the Spratly Islands. These accusations are correct. The reality is that China has changed the strategic balance in the Spratly Island chain by creating facilities on its new islands that will militarily overshadow the garrisons and defensive capabilities of the features occupied by Vietnam, the Philippines or Malaysia. Despite Chinese claims to the contrary, the U.S. military has no doubts that the island building is designed specifically for use as PLA operating bases. Among its more controversial recommendations, this paper puts forth a policy approach that puts more emphasis on deterrence. In this regard, Washington's call for Hanoi to stop improving the facilities it occupies in the Spratlys, probably to appear even-handed, seems strategically misguided. The goal should be to return some sort of strategic equilibrium to the Spratlys; Vietnam is the claimant best equipped to accomplish that. The other aspect of deterrence that will hopefully keep the peace is the U.S.-Philippine Mutual Defense Treaty because of its potential applicability if Filipino servicemen are harmed. C1 [McDevitt, Michael] Ctr Naval Anal, CNA Strateg Studies, Washington, DC USA. [McDevitt, Michael] US Navy, Washington, DC USA. [McDevitt, Michael] US CINCPAC, Strategy War Plans & Policy J 5, Washington, DC USA. RP McDevitt, M (reprint author), Ctr Naval Anal, CNA Strateg Studies, Washington, DC USA. NR 39 TC 0 Z9 0 U1 7 U2 10 PU ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD PI ABINGDON PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXFORDSHIRE, ENGLAND SN 1080-3920 EI 1533-2128 J9 AM FOREIGN POLICY IN JI Am. Foreign Policy Interes. PY 2015 VL 37 IS 5-6 BP 253 EP 263 DI 10.1080/10803920.2015.1162063 PG 11 WC International Relations SC International Relations GA DK4HF UT WOS:000374877400002 ER PT B AU DeGiorgi, VG Qidwai, SM Kota, N AF DeGiorgi, Virginia G. Qidwai, Siddiq M. Kota, Nithyanand GP ASME TI COMPUTATIONAL EVALUATION OF INCOMPLETE COATING COVERAGE SO PROCEEDINGS OF THE ASME INTERNATIONAL MECHANICAL ENGINEERING CONGRESS AND EXPOSITION, 2014, VOL 14 LA English DT Proceedings Paper CT ASME International Mechanical Engineering Congress and Exposition (IMECE2014) CY NOV 14-20, 2014 CL Montreal, CANADA SP ASME ID PITTING CORROSION; STAINLESS-STEEL; PITS AB Corrosion is a major cause of removal from service for many industries. Pitting, which involves localized corrosion of metals, can result in catastrophic failures because of resulting crack initiation and failure. The transition from pit to crack is influenced by the pit shape, which in turn is affected by the microstructure of the corroding material. In this work the authors investigate the importance of understanding the construction of a coating layer that may be present over the pit mouth. The coating layer may be by-products of another activity or a repair coating meant to prevent further damage. Stable pit growth occurs under diffusion control at rate that depends upon the extent of protective coating over the opening of the pit. The two extreme cases are: 1) no cover due to total loss of coating and 2) full cover over an existing pit. The cases in between would represent break in coating cover over an evolving pit. To investigate the effect of coating loss, a parametric study based on coating coverage percentage on the metal is investigated. The coating sample length and gap length are taken to be the same for all cases. Coverage percentages of 0% (no coating), 50%, 75% and 100% (fully coated) are analyzed for a set growth time. Severe numerical complications are discovered in the course of these analyses. The movement of the corrosion front parallel to the spatially fixed coating causes considerable mesh distortion that terminates the simulation prematurely requiring an impractically large number of re-meshing steps. The computational concepts investigated will be discussed in addition to evaluating the influence of pit coverage. C1 [DeGiorgi, Virginia G.; Qidwai, Siddiq M.] US Naval Res Lab, Multifunct Mat Branch, Washington, DC USA. [Kota, Nithyanand] Leidos Corp, Reston, VA USA. RP DeGiorgi, VG (reprint author), US Naval Res Lab, Multifunct Mat Branch, Washington, DC USA. NR 12 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 978-0-7918-4963-7 PY 2015 AR V014T11A006 PG 8 WC Engineering, Mechanical; Materials Science, Multidisciplinary SC Engineering; Materials Science GA BE6KR UT WOS:000374279300042 ER PT J AU Baer, W AF Baer, Wolfgang TI ON THE NECESSITY OF INCLUDING THE OBSERVER IN PHYSICAL THEORY SO COSMOS AND HISTORY-THE JOURNAL OF NATURAL AND SOCIAL PHILOSOPHY LA English DT Article DE Conscious Observer; Reality Projection; Cognitive Action Theory; Physical Correlates of Consciousness; Eddington's Fish Story; Special Relativity; Dual Slit Experiment AB All statements describing physical reality are derived through interpretation of measurement results that requires a theory of the measuring instruments used to make the measurements. The ultimate measuring instrument is our body which displays its measurement results in our mind. Since a physical theory of our mind-body is unknown, the correct interpretation of its measurement results is unknown. The success of the physical sciences has lead to a tendency to treat assumption in physics as indisputable facts. This tendency hampers the development of new theories capable of addressing the foundations of mind. To show the possibility that false interpretations of experimental results have lead to equally false projections onto physical reality may have happened, the double slit experiment and special relativity experiments are examined in detail. I will show that strongly held a-priory beliefs characterizing measurement instruments have lead to unjustified but widely held concepts in physical theories. For example the assumption that material bodies have minds can change the interpretation of experiments to produce alternative physical theories. Since some material bodies have minds this paper calls for a review of the conscious observer's role in the execution and interpretation of fundamental physics experiments in order to verify or challenge the basic beliefs adopted in standard physical theories. C1 [Baer, Wolfgang] Nascent Syst Inc, Carmel Valley, CA USA. [Baer, Wolfgang] Naval Postgrad Sch, Monterey, CA USA. RP Baer, W (reprint author), Nascent Syst Inc, Carmel Valley, CA USA. EM Wolf@NascentInc.com NR 20 TC 0 Z9 0 U1 1 U2 1 PU COSMOS PUBL COOPERATIVE PI HAWTHORN PA C/O ARRAN GARE, PHILOSOPHY & CULTURAL INQUIRY, PO BOX 218, HAWTHORN, VIC 3122, AUSTRALIA SN 1832-9101 J9 COSM HIST JI Cosm. Hist. PY 2015 VL 11 IS 2 BP 160 EP 174 PG 15 WC Philosophy SC Philosophy GA DK4IB UT WOS:000374879900012 ER PT S AU Justh, EW Krishnaprasad, PS AF Justh, Eric W. Krishnaprasad, P. S. BE Nielsen, F Barbaresco, F TI Enlargement, Geodesics, and Collectives SO GEOMETRIC SCIENCE OF INFORMATION, GSI 2015 SE Lecture Notes in Computer Science LA English DT Proceedings Paper CT 2nd International SEE Conference on Geometric Science of Information (GSI) CY OCT 28-30, 2015 CL Ecole Polytechnique, Comp Sci Dep, Lab Informatique, Palaiseau, FRANCE SP Soc lElectricite, lElectronique, Technologies linformation & Commun, Soc Math Appliquees Ind, CNRS, Inst Syst Complexes, Inria, Telecom ParisTech, THALES, Ecole Polytechnique, UNITWIN, Complex Syst Digital Campus, IledeFrance, Math limagerie & Applicat, Informat, Signal Image & Vis, Springer, Entropy, Fondat Cooperat Sci HO Ecole Polytechnique, Comp Sci Dep, Lab Informatique DE Subriemannian geometry; Subriemannian geodesics; Nonholonomic integrator; Lie-poisson reduction; Collective behavior AB We investigate optimal control of systems of particles on matrix Lie groups coupled through graphs of interaction, and characterize the limit of strong coupling. Following Brockett, we use an enlargement approach to obtain a convenient form of the optimal controls. In the setting of drift-free particle dynamics, the coupling terms in the cost functionals lead to a novel class of problems in subriemannian geometry of product Lie groups. C1 [Krishnaprasad, P. S.] Univ Maryland, Syst Res Inst, Dept Elect & Comp Engn, College Pk, MD 20742 USA. [Justh, Eric W.] Naval Res Lab, Washington, DC 20375 USA. RP Krishnaprasad, PS (reprint author), Univ Maryland, Syst Res Inst, Dept Elect & Comp Engn, College Pk, MD 20742 USA. EM krishna@umd.edu NR 9 TC 1 Z9 1 U1 0 U2 0 PU SPRINGER INT PUBLISHING AG PI CHAM PA GEWERBESTRASSE 11, CHAM, CH-6330, SWITZERLAND SN 0302-9743 BN 978-3-319-25040-3; 978-3-319-25039-7 J9 LECT NOTES COMPUT SC PY 2015 VL 9389 BP 558 EP 565 DI 10.1007/978-3-319-25040-3_60 PG 8 WC Computer Science, Artificial Intelligence; Computer Science, Theory & Methods; Robotics SC Computer Science; Robotics GA BE6LA UT WOS:000374288700060 ER PT S AU Kamgar-Parsi, B Kamgar-Parsi, B Kamgar-Parsi, K AF Kamgar-Parsi, Behzad Kamgar-Parsi, Behrooz Kamgar-Parsi, Kian GP IEEE TI NOTES ON IMAGE PROCESSING WITH PARTIAL DIFFERENTIAL EQUATIONS SO 2015 IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING (ICIP) SE IEEE International Conference on Image Processing ICIP LA English DT Proceedings Paper CT IEEE International Conference on Image Processing (ICIP) CY SEP 27-30, 2015 CL Quebec City, CANADA SP Inst Elect & Elect Engineers, IEEE Signal Proc Soc DE Anisotropic diffusion; image processing; PDE; Perona-Malik equation; transport coefficient ID IRREVERSIBLE-PROCESSES; NONLINEAR DIFFUSION AB We discuss the underlying physics of transport coefficients in the PDE image processing approach and present a more principled method for their construction. Transport coefficients in PDEs play important roles, e.g., the diffusion coefficient c in the Perona-Malik equation partial derivative u/partial derivative t = del(inverted perpendicular) (c del u). Hence different models for c have been proposed in the literature. We present a physics-based method for constructing c and compare its performance with existing models. We also clarify an issue that arises in implementing the PDE approach. It is well-known that the product rule for derivatives in continuous spaces, namely, partial derivative(f g) = g partial derivative f + f partial derivative g, does not hold in discrete spaces. Thus computing such quantities as del(inverted perpendicular)(c del u) in spatially discretized images becomes ambiguous depending on which of the two alternatives we use, namely, whether to treat c del u as a single function or treat c and del u as two functions and use the product rule. We examine this ambiguity and show which alternative is better in the sense of yielding approximations that are closer to the continuous space results. C1 [Kamgar-Parsi, Behzad] Off Naval Res, Arlington, VA 22203 USA. [Kamgar-Parsi, Behrooz] Naval Res Lab, Navy Ctr Appl Res AI, Washington, DC 20375 USA. [Kamgar-Parsi, Kian] Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA. RP Kamgar-Parsi, B (reprint author), Off Naval Res, Arlington, VA 22203 USA. NR 19 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 978-1-4799-8339-1 J9 IEEE IMAGE PROC PY 2015 BP 1737 EP 1741 PG 5 WC Engineering, Electrical & Electronic; Imaging Science & Photographic Technology SC Engineering; Imaging Science & Photographic Technology GA BE4NP UT WOS:000371977801171 ER PT S AU Giachetti, RE AF Giachetti, Ronald E. BE Dagli, CH TI Evaluation of the DoDAF Meta-Model's Support of Systems Engineering SO COMPLEX ADAPTIVE SYSTEMS, 2015 SE Procedia Computer Science LA English DT Proceedings Paper CT Conference on Engineering Cyber Physical Systems - Machine Learning, Data Analytics and Smart Systems Architecting CY NOV 02-04, 2015 CL San Jose, CA SP Missouri Univ Sci & Technol DE Ontology; systems engineering; system architecture; model-based systems engineering AB The Department of Defense Architectural Framework (DoDAF) is the DoD's mandated method to document system architectures. Consequently, it has a far-reaching and deep impact on systems engineering and acquisition within the DoD. DoDAF version 2.0 departs from earlier versions in its emphasis on the underlying architectural data. It is now based on a meta model called DM2 that defines all the concepts and their relationships. This paper examines DM2 with a critical eye toward how it is defined, modeled, and used to support systems engineering. The evaluation is based on a text analysis of systems engineering guidebooks and a comparison with the DM2 definitions. We classify mismatches between the systems engineering guidebooks and DM2 and highlight some omissions in DM2 of important systems engineering concepts. We find that DM2 has some serious omissions that have implications for the ability of DM2 to support systems engineering. We make two recommendations for how DM2 can address these issues. First, the underlying ontology should be developed and modeled using more widespread used tools to facilitate greater understanding, adoption, and acceptance by the community. Second, the ontology must be designed to support the decision processes using language familiar to the intended users. Published by Elsevier B.V. C1 [Giachetti, Ronald E.] Naval Postgrad Sch, Syst Engn, Monterey, CA 93940 USA. RP Giachetti, RE (reprint author), Naval Postgrad Sch, Syst Engn, Monterey, CA 93940 USA. EM regiache@nps.edu NR 13 TC 1 Z9 1 U1 3 U2 4 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 1877-0509 J9 PROCEDIA COMPUT SCI PY 2015 VL 61 BP 254 EP 260 DI 10.1016/j.procs.2015.09.208 PG 7 WC Computer Science, Information Systems; Computer Science, Theory & Methods SC Computer Science GA BE6BY UT WOS:000373845000036 ER PT S AU Rajtmajer, S Griffin, C Squicciarini, A AF Rajtmajer, Sarah Griffin, Christopher Squicciarini, Anna BE Khouzani, MHR Panaousis, E Theodorakopoulos, G TI Determining a Discrete Set of Site-Constrained Privacy Options for Users in Social Networks Through Stackelberg Games SO DECISION AND GAME THEORY FOR SECURITY, GAMESEC 2015 SE Lecture Notes in Computer Science LA English DT Proceedings Paper CT 6th International Conference on Decision and Game Theory for Security (GameSec) CY NOV 04-05, 2015 CL London, ENGLAND ID COOPERATION; INFORMATION; EVOLUTION AB The privacy policies of an online social network play an important role in determining user involvement and satisfaction, and in turn site profit and success. In this paper, we develop a game theoretic framework to model the relationship between the set of privacy options offered by a social network site and the sharing decisions of its users within these constraints. We model the site and the users in this scenario as the leader and followers, respectively, in a Stackelberg game. We formally establish the conditions under which this game reaches a Nash equilibrium in pure strategies and provide an approximation algorithm for the site to determine a discrete set of privacy options to maximize payoff. We validate hypotheses in our model on data collected from a mock-social network of users' privacy preferences both within and outside the context of peer influence, and demonstrate that the qualitative assumptions of our model are well-founded. C1 [Rajtmajer, Sarah] Penn State Univ, Dept Math, State Coll, PA USA. [Griffin, Christopher] US Naval Acad, Dept Math, Annapolis, MD 21402 USA. [Squicciarini, Anna] Penn State Univ, Coll Informat Sci & Technol, State Coll, PA USA. RP Rajtmajer, S (reprint author), Penn State Univ, Dept Math, State Coll, PA USA. EM smr48@psu.edu; griffinch@ieee.org; acs20@psu.edu NR 39 TC 0 Z9 0 U1 2 U2 2 PU SPRINGER INT PUBLISHING AG PI CHAM PA GEWERBESTRASSE 11, CHAM, CH-6330, SWITZERLAND SN 0302-9743 BN 978-3-319-25594-1; 978-3-319-25593-4 J9 LECT NOTES COMPUT SC PY 2015 VL 9406 BP 208 EP 227 DI 10.1007/978-3-319-25594-1_12 PG 20 WC Computer Science, Hardware & Architecture; Computer Science, Interdisciplinary Applications; Computer Science, Theory & Methods SC Computer Science GA BE6GL UT WOS:000374103200012 ER PT S AU Belden, J Pendlebury, J Jafek, A Truscott, T AF Belden, Jesse Pendlebury, Jonathon Jafek, Alexander Truscott, Tadd BE Ravela, S Sandu, A TI Advances in Light Field Imaging for Measurement of Fluid Mechanical Systems SO DYNAMIC DATA-DRIVEN ENVIRONMENTAL SYSTEMS SCIENCE, DYDESS 2014 SE Lecture Notes in Computer Science LA English DT Proceedings Paper CT 1st International Conference on Dynamic Data-Driven Environmental Systems Science (DyDESS) CY NOV 05-07, 2014 CL Cambridge, MA SP Massachusetts Inst Technol, Dept Earth Atmospher & Planetary Sci DE Light field imaging; Experimental fluids; Volume reconstruction; Flames; Specular surfaces ID TURBULENT PREMIXED FLAMES; STEREOSCOPIC PIV MEASUREMENTS; VELOCIMETRY; MICROSCOPY AB Light field imaging is becoming an increasingly useful tool for measuring fluid mechanical systems. We present advances in light field imaging for fluids along three directions. The first concerns robust reconstruction of fluid measurement volumes using synthetic aperture refocusing followed by deconvolution. Then, we discuss how a flame, which distorts the refractive index, augments the light field. The error introduced into particle image velocimetry measurements by this effect is discussed. Finally, we develop a framework for the application of light field imaging to the reconstruction of a specular gas-liquid interface. C1 [Belden, Jesse] Naval Undersea Warfare Ctr, Newport, RI USA. [Pendlebury, Jonathon; Jafek, Alexander; Truscott, Tadd] Brigham Young Univ, Provo, UT 84602 USA. RP Belden, J (reprint author), Naval Undersea Warfare Ctr, Newport, RI USA. EM jesse.belden@navy.mil NR 25 TC 0 Z9 0 U1 1 U2 1 PU SPRINGER INT PUBLISHING AG PI CHAM PA GEWERBESTRASSE 11, CHAM, CH-6330, SWITZERLAND SN 0302-9743 BN 978-3-319-25138-7; 978-3-319-25137-0 J9 LECT NOTES COMPUT SC PY 2015 VL 8964 BP 28 EP 38 DI 10.1007/978-3-319-25138-7_4 PG 11 WC Computer Science, Artificial Intelligence; Computer Science, Interdisciplinary Applications; Computer Science, Software Engineering; Computer Science, Theory & Methods; Robotics SC Computer Science; Robotics GA BE6BS UT WOS:000373824200004 ER PT J AU Stander, VA Thomsen, CJ AF Stander, Valerie A. Thomsen, Cynthia J. TI Sexual Harassment and Assault in the US Military: A Review of Policy and Research Trends SO MILITARY MEDICINE LA English DT Review ID POSTTRAUMATIC-STRESS-DISORDER; INTIMATE PARTNER VIOLENCE; FEMALE VETERANS; NAVY PERSONNEL; MENTAL-HEALTH; UNITED-STATES; EDUCATION/PREVENTION PROGRAM; GENDER-DIFFERENCES; OEF/OIF VETERANS; COLLEGE-STUDENTS AB Recently, there has been increasing concern regarding the problem of sexual violence in the military. Because sexual harassment and assault are more closely intertwined in the military than in most civilian contexts, the military context affords a unique opportunity to study the interrelationships between these two types of sexual violence. In this review, we briefly summarize existing research on military sexual trauma prevalence rates, effects on victims, and risk factors, as well as prevention and response programs in the military context. In each of these topic areas, we emphasize issues unique to the complex interplay between sexual harassment and assault in the military and make recommendations for future research. C1 [Stander, Valerie A.; Thomsen, Cynthia J.] Naval Hlth Res Ctr, 140 Sylvester Rd, San Diego, CA 92106 USA. RP Stander, VA (reprint author), Naval Hlth Res Ctr, 140 Sylvester Rd, San Diego, CA 92106 USA. FU Tri-Service Nursing Research Program [N1411] FX Report no. 15-02 was supported by the Tri-Service Nursing Research Program, under Work Unit no. N1411. NR 68 TC 1 Z9 1 U1 5 U2 10 PU ASSOC MILITARY SURG US PI BETHESDA PA 9320 OLD GEORGETOWN RD, BETHESDA, MD 20814 USA SN 0026-4075 EI 1930-613X J9 MIL MED JI Milit. Med. PD JAN PY 2015 VL 181 SU 1 BP 20 EP 27 DI 10.7205/MILMED-D-15-00336 PG 8 WC Medicine, General & Internal SC General & Internal Medicine GA DI3NW UT WOS:000373406400005 PM 26741898 ER PT J AU Segal, MW Smith, DG Segal, DR Canuso, AA AF Segal, Mady Wechsler Smith, David G. Segal, David R. Canuso, Amy A. TI The Role of Leadership and Peer Behaviors in the Performance and Well-Being of Women in Combat: Historical Perspectives, Unit Integration, and Family Issues SO MILITARY MEDICINE LA English DT Article ID EXPERIENCING DEPLOYMENT; SEXUAL-HARASSMENT; GULF-WAR; MILITARY; GENDER; DIVERSITY; ADJUSTMENT; SEPARATION; STRESSORS; VETERANS AB This article analyzes how the behaviors of leaders and peers affect the performance and well-being of military women. Locating our analysis within the conceptual model in this issue, we summarize the empirical literature and make practice and policy recommendations. We synthesize results about unit integration, such as research on the conditions for successful integration of previously excluded groups and on the relationship between cohesion and performance. We apply lessons learned from the history of diversity integration in military and civilian organizations, analyzing the treatment of military personnel by race, gender, and sexual orientation. The opening of ground combat specialties and units to women is the latest step in personnel policy changes broadening the recruitment base. We analyze research on gender integration in contemporary armed forces, focusing on positive and negative effects on women of leader and peer behaviors. We discuss conditions for successfully integrating women and those that tend to lead to failure. We analyze military women's family issues, including the effects of deployments and how leaders and peers can help ameliorate problems-or exacerbate them with inappropriate or unsupportive behavior. C1 [Segal, Mady Wechsler] Univ Maryland, 9007 Gettysburg Lane, College Pk, MD 20740 USA. [Smith, David G.] US Naval Acad, Annapolis, MD 21402 USA. [Segal, David R.] Univ Maryland, Dept Sociol, College Pk, MD 20742 USA. [Canuso, Amy A.] Walter Reed Natl Mil Med Ctr, Bethesda, MD 20889 USA. RP Segal, MW (reprint author), Univ Maryland, 9007 Gettysburg Lane, College Pk, MD 20740 USA. FU Geneva Foundation; U.S. Army Research Institute for the Behavior and Social Sciences [W74V8H-05-K-0007] FX We are grateful for the anonymous reveiwers, whose comments helped us to improve the article. The involvement of M.W.S. in this project was supported by a Geneva Foundation contract in support of the work of the Military Operational Medicine Research Program of the U.S. Army Medical Research and Materiel Command. Contributions of D.R.S. to this article were supported in part by the U.S. Army Research Institute for the Behavior and Social Sciences under contract no. W74V8H-05-K-0007. NR 62 TC 1 Z9 1 U1 3 U2 5 PU ASSOC MILITARY SURG US PI BETHESDA PA 9320 OLD GEORGETOWN RD, BETHESDA, MD 20814 USA SN 0026-4075 EI 1930-613X J9 MIL MED JI Milit. Med. PD JAN PY 2015 VL 181 SU 1 BP 28 EP 39 DI 10.7205/MILMED-D-15-00342 PG 12 WC Medicine, General & Internal SC General & Internal Medicine GA DI3NW UT WOS:000373406400006 ER PT J AU Nindl, BC Jones, BH Van Arsdale, SJ Kelly, K Kraemer, WJ AF Nindl, Bradley C. Jones, Bruce H. Van Arsdale, Stephanie J. Kelly, Karen Kraemer, William J. TI Operational Physical Performance and Fitness in Military Women: Physiological, Musculoskeletal Injury, and Optimized Physical Training Considerations for Successfully Integrating Women Into Combat-Centric Military Occupations SO MILITARY MEDICINE LA English DT Article ID ANTERIOR CRUCIATE LIGAMENT; EXERCISE-RELATED INJURIES; VASTUS LATERALIS MUSCLE; SEX-RELATED DIFFERENCES; FEMALE ARMY TRAINEES; RISK-FACTORS; NEUROMUSCULAR ADAPTATIONS; CONCURRENT STRENGTH; GENDER-DIFFERENCES; UPRIGHT EXERCISE AB This article summarizes presentations from a 2014 United States Department of Defense (DoD) Health Affairs Women in Combat symposium addressing physiological, musculoskeletal injury, and optimized physical training considerations from the operational physical performance section. The symposium was held to provide a state-of-the-science meeting on the U.S. DoD's rescinding of the ground combat exclusion policy opening up combat-centric occupations to women. Physiological, metabolic, body composition, bone density, cardiorespiratory fitness, and thermoregulation differences between men and women were briefly reviewed. Injury epidemiological data are presented within military training and operational environments demonstrating women to be at a higher risk for musculoskeletal injuries than men. Physical training considerations for improved muscle strength and power, occupational task performance, load carriage were also reviewed. Particular focus of this article was given to translating physiological and epidemiological findings from the literature on these topics toward actionable guidance and policy recommendations for military leaders responsible for military physical training doctrine: (1) inclusion of resistance training with special emphasis on strength and power development (i.e., activation of high-threshold motor units and recruitment of type II high-force muscle fibers), upper-body strength development, and heavy load carriage, (2) moving away from "field expediency" as the major criteria for determining military physical training policy and training implementation, (3) improvement of load carriage ability with emphasis placed on specific load carriage task performance, combined with both resistance and endurance training, and (4) providing greater equipment resources, coaching assets, and increased training time dedicated to physical readiness training. C1 [Nindl, Bradley C.; Jones, Bruce H.] US Army, Publ Hlth Command, Inst Publ Hlth, 5158 Blackhawk Rd, Aberdeen Proving Ground, MD 21010 USA. [Van Arsdale, Stephanie J.] Uniformed Serv Univ Hlth Sci, Consortium Hlth & Mil Performance, Bethesda, MD 20814 USA. [Kelly, Karen] Naval Hlth Res Ctr, Dept Warfighter Performance, San Diego, CA 92106 USA. [Kraemer, William J.] Ohio State Univ, Dept Human Sci, Coll Educ & Hlth Ecol, Columbus, OH 43210 USA. RP Nindl, BC (reprint author), US Army, Publ Hlth Command, Inst Publ Hlth, 5158 Blackhawk Rd, Aberdeen Proving Ground, MD 21010 USA. NR 81 TC 1 Z9 1 U1 4 U2 5 PU ASSOC MILITARY SURG US PI BETHESDA PA 9320 OLD GEORGETOWN RD, BETHESDA, MD 20814 USA SN 0026-4075 EI 1930-613X J9 MIL MED JI Milit. Med. PD JAN PY 2015 VL 181 SU 1 BP 50 EP 62 DI 10.7205/MILMED-D-15-00382 PG 13 WC Medicine, General & Internal SC General & Internal Medicine GA DI3NW UT WOS:000373406400009 ER PT J AU Dye, JL Eskridge, SL Tepe, V Clouser, MC Galarneau, M AF Dye, Judy L. Eskridge, Susan L. Tepe, Victoria Clouser, Mary C. Galarneau, Michael TI Characterization and Comparison of Combat-Related Injuries in Women During OIF and OEF SO MILITARY MEDICINE LA English DT Article ID TRAUMATIC BRAIN-INJURY; OPERATION-IRAQI-FREEDOM; SEX-DIFFERENCES; SEVERITY SCORE; PROGESTERONE; PERSONNEL; SYMPTOMS; OUTCOMES; ILLNESS; GENDER AB Although historically restricted from combat roles, women suffer from combat-related injuries, especially in recent conflicts where asymmetrical warfare erases distinctions between forward and rear operating areas. U.S. service-women who sustained combat-related injury in Operation Iraqi Freedom (OIF) or Operation Enduring Freedom (OEF) between January 2003 and May 2014 were identified from the Expeditionary Medical Encounter Database. Injuries were characterized using Abbreviated Injury Scale and International Classification of Diseases, 9th Revision codes. Of the 844 combat-related injury episodes in women, 51% (n = 433) were OIF injuries and 49% (n = 411) were OEF injuries. Blast events were responsible for 90% of injuries. The average Injury Severity Score was 3, with no statistical difference in means between OIF and OEF. Of significance were increased head injuries in OEF compared with OIF (80% vs. 48%; p < 0.001). Although the majority of combat-related injuries suffered by women were mild, some women suffered life-threatening injuries, and nearly 65% of the injury episodes resulted in more than one injury. More research is needed as the roles of women in the military continue to expand. Future studies will investigate quality of life outcomes and gender differences in combat-related injuries. C1 [Dye, Judy L.; Eskridge, Susan L.; Clouser, Mary C.; Galarneau, Michael] Naval Hlth Res Ctr, Med Modeling Simulat & Mission Support Dept, 140 Sylvester Rd, San Diego, CA 92106 USA. [Tepe, Victoria] Dept Def Hearing Ctr Excellence HCE, Jbsa Lackland, TX 78236 USA. RP Dye, JL (reprint author), Naval Hlth Res Ctr, Med Modeling Simulat & Mission Support Dept, 140 Sylvester Rd, San Diego, CA 92106 USA. FU U.S. Navy Bureau of Medicine and Surgery under the Wounded, Ill, and Injured/Psychological Health/Traumatic Brain Injury Program, Washington, DC, Work Unit [60808] FX Report No. 14-xx, supported by the U.S. Navy Bureau of Medicine and Surgery under the Wounded, Ill, and Injured/Psychological Health/Traumatic Brain Injury Program, Washington, DC, Work Unit No. 60808. The views expressed in this presentation are those of the author(s) and do not necessarily reflect the official policy or position of the Department of the Navy, Department of Defense, or the U.S. Government. Approved for public release; distribution is unlimited. U.S. Government Work (17 USC 105). Not copyrighted in the U.S. This research has been conducted in compliance with all applicable federal regulations governing the protection of human subjects in research (Protocol NHRC.2003.0025). NR 42 TC 0 Z9 0 U1 0 U2 0 PU ASSOC MILITARY SURG US PI BETHESDA PA 9320 OLD GEORGETOWN RD, BETHESDA, MD 20814 USA SN 0026-4075 EI 1930-613X J9 MIL MED JI Milit. Med. PD JAN PY 2015 VL 181 SU 1 BP 92 EP 98 DI 10.7205/MILMED-D-15-00237 PG 7 WC Medicine, General & Internal SC General & Internal Medicine GA DI3NW UT WOS:000373406400014 ER PT J AU Hernandez, A McDonald, M Ouellet, J AF Hernandez, Alejandro McDonald, Mary Ouellet, Julian TI Post Wargame Experimentation and Analysis: Re-examining Executed Computer-Assisted Wargames for New Insights SO MILITARY OPERATIONS RESEARCH LA English DT Article AB In 2011, planners for the International Security Assistance Force, including the Afghan Assessment Group (AAG) prepared for the US's withdrawal from Afghanistan. Their goal was to mitigate the threat of increased insurgent violence during the period. The Command used computer assisted wargames (CAW) to develop and analyze courses of actions, but critical questions remained unanswered. The AAG formed a partnership with the Joint Staff J-8 and NPS to produce a process that transformed a human-in-the-loop CAW into a closed-form simulation experiment upon which the team applied advanced experimental designs and analysis. The results informed the recommended US departure schedule from theater. C1 [Hernandez, Alejandro; McDonald, Mary] Naval Postgrad Sch, Monterey, CA 93943 USA. RP Hernandez, A (reprint author), Naval Postgrad Sch, Monterey, CA 93943 USA. EM ahernand@nps.edu; mlmcdona@nps.edu; julian.j.ouellet.civ@mail.mil NR 29 TC 0 Z9 0 U1 1 U2 2 PU MILITARY OPERATIONS RESEARCH SOC PI ALEXANDRIA PA 1703 N BEAUREGARD ST, STE 450, ALEXANDRIA, VA 22311-1717 USA SN 0275-5823 J9 MIL OPER RES JI Mil. Oper. Res. PY 2015 VL 20 IS 4 BP 19 EP 37 DI 10.5711/1082598320419 PG 19 WC Operations Research & Management Science SC Operations Research & Management Science GA DI6YX UT WOS:000373647200002 ER PT J AU Washburn, A Karatas, M AF Washburn, Alan Karatas, Mumtaz TI Multistatic Search Theory SO MILITARY OPERATIONS RESEARCH LA English DT Article ID RADAR; SONAR; TRACKING; TARGETS AB Multistatic detection systems involving separate sources and receivers show great promise, but questions arise that are not present in monostatic systems. Receivers are usually much cheaper than sources, so there is the question of relative numbers, and there are new issues about patterns of deployment. This article develops a search theory that is simple enough to deal with such questions, and uses it to provide some answers. C1 [Washburn, Alan] Naval Postgrad Sch, Dept Operat Res, Monterey, CA 93943 USA. [Karatas, Mumtaz] Turkish Naval Acad, Istanbul, Turkey. RP Washburn, A (reprint author), Naval Postgrad Sch, Dept Operat Res, Monterey, CA 93943 USA. EM awashburn@nps.edu; mkaratas@dho.edu.tr OI Karatas, Mumtaz/0000-0002-6287-3216 NR 32 TC 0 Z9 0 U1 3 U2 5 PU MILITARY OPERATIONS RESEARCH SOC PI ALEXANDRIA PA 1703 N BEAUREGARD ST, STE 450, ALEXANDRIA, VA 22311-1717 USA SN 0275-5823 J9 MIL OPER RES JI Mil. Oper. Res. PY 2015 VL 20 IS 1 BP 21 EP + DI 10.5711/1082598320121 PG 19 WC Operations Research & Management Science SC Operations Research & Management Science GA DI6YU UT WOS:000373646900002 ER PT J AU Pietz, J Royset, JO AF Pietz, Jesse Royset, Johannes O. TI Optimal Search and Interdiction Planning SO MILITARY OPERATIONS RESEARCH LA English DT Article ID MOVING-TARGET; MULTIPLE SEARCHERS; CONSTRAINED-PATH; OPTIMIZATION AB International law enforcement organizations, like the Joint Interagency Task Force South, seek to combat high drug-related mortality rates by seizing illicit drugs in transit over international waters. This mission requires effective plans that route multiple aerial searchers and position surface interdictors through large expanses of geographical areas in the presence of highly uncertain estimates about drug smuggler whereabouts. This high uncertainty combined with the challenge of coordinating search and interdiction make it difficult to conduct mission planning. In order demonstrate how planners can address these challenges, the authors use network methods and nonlinear programming to solve novel optimal search and interdiction models within a realistic counterdrug operation scenario. C1 [Pietz, Jesse] US Air Force Acad, Colorado Springs, CO 80840 USA. [Royset, Johannes O.] Naval Postgrad Sch, Monterey, CA USA. RP Pietz, J (reprint author), US Air Force Acad, Colorado Springs, CO 80840 USA. EM jesse.pietz@usafa.edu; joroyset@nps.edu FU Office of Naval Research, Mathematical Optimization and Operations Research Program FX The second author acknowledges financial support from the Office of Naval Research, Mathematical Optimization and Operations Research Program. NR 20 TC 0 Z9 0 U1 5 U2 7 PU MILITARY OPERATIONS RESEARCH SOC PI ALEXANDRIA PA 1703 N BEAUREGARD ST, STE 450, ALEXANDRIA, VA 22311-1717 USA SN 0275-5823 J9 MIL OPER RES JI Mil. Oper. Res. PY 2015 VL 20 IS 4 BP 59 EP 73 DI 10.5711/1082598320459 PG 15 WC Operations Research & Management Science SC Operations Research & Management Science GA DI6YX UT WOS:000373647200005 ER PT J AU Phillips, DJ McGlaughlin, A Ruth, D Jager, LR Soldan, A AF Phillips, David J. McGlaughlin, Alec Ruth, David Jager, Leah R. Soldan, Anja CA Alzheimers Dis Neuroimaging Initia TI Graph theoretic analysis of structural connectivity across the spectrum of Alzheimer's disease: The importance of graph creation methods SO NEUROIMAGE-CLINICAL LA English DT Article DE Graph theory; Structural MRI; Alzheimer's disease; Mild cognitive impairment; Connectomics; Cortical thickness networks ID MILD COGNITIVE IMPAIRMENT; HUMAN CEREBRAL-CORTEX; TOPOLOGICAL ORGANIZATION; FUNCTIONAL CONNECTIVITY; CORTICAL NETWORKS; SYNAPTIC LOSS; THICKNESS; DISCONNECTION; CONNECTOMICS; DEMENTIA AB Graph theory is increasingly being used to study brain connectivity across the spectrum of Alzheimer's disease (AD), but prior findings have been inconsistent, likely reflecting methodological differences. We systematically investigated how methods of graph creation (i.e., type of correlation matrix and edge weighting) affect structural network properties and group differences. We estimated the structural connectivity of brain networks based on correlation maps of cortical thickness obtained from MRI. Four groups were compared: 126 cognitively normal older adults, 103 individuals with Mild Cognitive Impairment (MCI) who retained MCI status for at least 3 years (stable MCI), 108 individuals with MCI who progressed to AD-dementia within 3 years (progressive MCI), and 105 individuals with AD-dementia. Small-world measures of connectivity (characteristic path length and clustering coefficient) differed across groups, consistent with prior studies. Groups were best discriminated by the Randic index, which measures the degree to which highly connected nodes connect to other highly connected nodes. The Randic index differentiated the stable and progressive MCI groups, suggesting that it might be useful for tracking and predicting the progression of AD. Notably, however, the magnitude and direction of group differences in all three measures were dependent on the method of graph creation, indicating that it is crucial to take into account how graphs are constructed when interpreting differences across diagnostic groups and studies. The algebraic connectivity measures showed few group differences, independent of the method of graph construction, suggesting that global connectivity as it relates to node degree is not altered in early AD. (C) 2015 The Authors. Published by Elsevier Inc. C1 [Phillips, David J.; McGlaughlin, Alec; Ruth, David] US Naval Acad, Dept Math, Annapolis, MD 21401 USA. [Jager, Leah R.; Soldan, Anja] Johns Hopkins Univ, Sch Med, Dept Neurol, Baltimore, MD 21205 USA. [McGlaughlin, Alec] Stanford Univ, Dept Bioengn, Stanford, CA 94305 USA. RP Soldan, A (reprint author), Div Cognit Neurosci, 1620 McElderry St,Reed Hall West 1, Baltimore, MD 21205 USA. EM asoldan1@jhmi.edu OI Soldan, Anja/0000-0002-6193-0418 FU ONR [N0001414WX20699, N0001414WX30023]; National Institutes of Health [U01-AG03365, P50-AG05146]; Alzheimer's Disease Neuroimaging Initiative (ADNI) (National Institutes of Health) [U01 AG024904]; DOD ADNI (Department of Defense) [W81XWH-12-2-0012]; National Institute on Aging; National Institute of Biomedical Imaging and Bioengineering; Canadian Institutes of Health Research FX This study was supported in part by ONR grant N0001414WX20699 to David Phillips, ONR grant N0001414WX30023 to Alec McGlaughlin, and the National Institutes of Health grants U01-AG03365 and P50-AG05146. Data collection and sharing for this project was funded by the Alzheimer's Disease Neuroimaging Initiative (ADNI) (National Institutes of Health grant U01 AG024904) and DOD ADNI (Department of Defense award number W81XWH-12-2-0012). ADNI is funded by the National Institute on Aging, the National Institute of Biomedical Imaging and Bioengineering, and through generous contributions from the following: Alzheimer's Association; Alzheimer's Drug Discovery Foundation; Araclon Biotech; BioClinica, Inc.; Biogen Idec Inc.; Bristol-Myers Squibb Company; Eisai Inc.; Elan Pharmaceuticals, Inc.; Eli Lilly and Company; EuroImmun; F. Hoffmann-La Roche Ltd and its affiliated company Genentech, Inc.; Fujirebio; GE Healthcare; IXICO Ltd.; Janssen Alzheimer Immunotherapy Research & Development, LLC; Johnson & Johnson Pharmaceutical Research & Development LLC; Medpace, Inc.; Merck & Co., Inc.; Meso Scale Diagnostics, LLC; NeuroRx Research; Neurotrack Technologies; Novartis Pharmaceuticals Corporation; Pfizer Inc.; Piramal Imaging; Servier; Synarc Inc.; and Takeda Pharmaceutical Company. The Canadian Institutes of Health Research is providing funds to support ADNI clinical sites in Canada. Private sector contributions are facilitated by the Foundation for the National Institutes of Health (http://www.fnih.org). The grantee organization is the Northern California Institute for Research and Education, and the study is coordinated by the Alzheimer's disease Cooperative Study at the University of California San Diego. ADNI data are disseminated by the Laboratory for Neuro Imaging at the University of Southern California. NR 51 TC 7 Z9 7 U1 3 U2 4 PU ELSEVIER SCI LTD PI OXFORD PA THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND SN 2213-1582 J9 NEUROIMAGE-CLIN JI NeuroImage-Clin. PY 2015 VL 7 BP 377 EP 390 DI 10.1016/j.nicl.2015.01.007 PG 14 WC Neuroimaging SC Neurosciences & Neurology GA DI0GE UT WOS:000373172600042 PM 25984446 ER PT B AU Choi, SR AF Choi, Sung R. BE Bansal, NP Lamon, J TI FOREIGN OBJECT DAMAGE IN CERAMIC MATRIX COMPOSITES SO CERAMIC MATRIX COMPOSITES: MATERIALS, MODELING AND TECHNOLOGY LA English DT Article; Book Chapter ID GRADE SILICON NITRIDES; QUASI-STATIC INDENTATION; STEEL BALL PROJECTILES; IMPACT DAMAGE; STRENGTH DEGRADATION; SIC/SIC COMPOSITE; INELASTIC DEFORMATION; STRUCTURAL CERAMICS; PARTICLE IMPACT; VELOCITY IMPACT C1 [Choi, Sung R.] Naval Air Syst Command, Patuxent River, MD USA. RP Choi, SR (reprint author), Naval Air Syst Command, Patuxent River, MD USA. NR 77 TC 1 Z9 1 U1 1 U2 1 PU JOHN WILEY & SONS INC PI HOBOKEN PA 111 RIVER ST, HOBOKEN, NJ 07030 USA BN 978-1-118-83299-8; 978-1-118-23116-6 PY 2015 BP 405 EP 429 PG 25 WC Materials Science, Ceramics; Materials Science, Composites SC Materials Science GA BE3XU UT WOS:000371347800015 ER PT S AU Parrill, AL Lipkowitz, KB AF Parrill, Abby L. Lipkowitz, Kenny B. BE Parrill, AL Lipkowitz, KB TI Reviews in Computational Chemistry 28 Preface SO REVIEWS IN COMPUTATIONAL CHEMISTRY, VOL 28 SE Reviews in Computational Chemistry LA English DT Editorial Material; Book Chapter C1 [Parrill, Abby L.] Univ Memphis, Dept Chem, Memphis, TN 38152 USA. [Lipkowitz, Kenny B.] Off Naval Res, Arlington, VA 22203 USA. RP Parrill, AL (reprint author), Univ Memphis, Dept Chem, Memphis, TN 38152 USA. EM aparrill@memphis.edu; kenny.lipkowitz@navy.mil NR 0 TC 0 Z9 0 U1 3 U2 3 PU JOHN WILEY & SONS INC PI HOBOKEN PA 111 RIVER ST, HOBOKEN, NJ 07030 USA SN 1069-3599 BN 978-1-118-88988-6; 978-1-118-40777-6 J9 REV COMP CH JI Rev. Comput. Chem. PY 2015 VL 28 BP XI EP XIII D2 10.1002/9781118889886 PG 3 WC Chemistry, Multidisciplinary SC Chemistry GA BE4WY UT WOS:000372183900001 ER PT S AU Turner, CH Zhang, ZT Gelb, LD Dunlap, BI AF Turner, C. Heath Zhang, Zhongtao Gelb, Lev D. Dunlap, Brett I. BE Parrill, AL Lipkowitz, KB TI Kinetic Monte Carlo Simulation of Electrochemical Systems SO REVIEWS IN COMPUTATIONAL CHEMISTRY, VOL 28 SE Reviews in Computational Chemistry LA English DT Article; Book Chapter ID OXIDE FUEL-CELL; YTTRIA-STABILIZED ZIRCONIA; CHEMICAL-VAPOR-DEPOSITION; LITHIUM-ION BATTERIES; COPPER ELECTRODEPOSITION; OXYGEN REDUCTION; CAPACITY FADE; ETHYLENE HYDROGENATION; FILM ELECTRODE; AC-IMPEDANCE C1 [Turner, C. Heath; Zhang, Zhongtao] Univ Alabama, Dept Chem & Biol Engn, Tuscaloosa, AL 35487 USA. [Gelb, Lev D.] Univ Texas Dallas, Dept Mat Sci & Engn, Richardson, TX 75080 USA. [Dunlap, Brett I.] US Naval Res Lab, Div Chem, Washington, DC 20375 USA. RP Turner, CH (reprint author), Univ Alabama, Dept Chem & Biol Engn, Tuscaloosa, AL 35487 USA. NR 100 TC 2 Z9 2 U1 6 U2 13 PU JOHN WILEY & SONS INC PI HOBOKEN PA 111 RIVER ST, HOBOKEN, NJ 07030 USA SN 1069-3599 BN 978-1-118-88988-6; 978-1-118-40777-6 J9 REV COMP CH JI Rev. Comput. Chem. PY 2015 VL 28 BP 175 EP 204 D2 10.1002/9781118889886 PG 30 WC Chemistry, Multidisciplinary SC Chemistry GA BE4WY UT WOS:000372183900006 ER PT S AU Kam, C Kompella, S Ephremides, A Moskowitz, IS AF Kam, Clement Kompella, Sastry Ephremides, Anthony Moskowitz, Ira S. GP IEEE TI SINR-Based Scheduling for Minimum Latency Broadcast SO 2015 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC) SE IEEE International Conference on Communications LA English DT Proceedings Paper CT IEEE International Conference on Communications (ICC) CY JUN 08-12, 2015 CL London, ENGLAND SP IEEE ID WIRELESS NETWORKS AB We study the minimum latency broadcast scheduling problem, in which a single source has a quantity of data that must be transmitted to all other nodes in a multi-hop network in minimum time. Aside from the obvious application to classical communications, this problem also relates to some more general problems in the field of network science. Previous approaches to scheduling have assumed a simplistic collision model of interference, while others have studied the more realistic physical model of total received interference power. Existing suboptimal approaches for transmitting the data typically assume a collision-free, fixed-rate, single packet transmission. In this work, we devise an optimal approach for broadcast under a physical interference model with fixed-rate, single packet transmission by converting it to a shortest path problem for an unweighted, undirected graph. Since this optimal approach does not scale well, we also consider a suboptimal layered approach which separates the routing and scheduling functions, but relaxes the fixed-rate, single packet assumption. This goes beyond the signal-to-interference-plus-noise (SINR) threshold model to allow for rate adaptation as a function of SINR. We include improvements on previous routing approaches, and we formulate a linear programming approach to the variable-rate scheduling for broadcast. Simulations show that in some special cases, this variable-rate layered approach can even outperform the optimal fixed-rate, single packet approach. C1 [Kam, Clement; Kompella, Sastry; Moskowitz, Ira S.] Naval Res Lab, Div Informat Technol, Washington, DC 20375 USA. [Ephremides, Anthony] Univ Maryland, Elect & Comp Engn Dept, College Pk, MD 20742 USA. RP Kam, C (reprint author), Naval Res Lab, Div Informat Technol, Washington, DC 20375 USA. 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 1550-3607 BN 978-1-4673-6432-4 J9 IEEE ICC PY 2015 BP 6252 EP 6257 PG 6 WC Telecommunications SC Telecommunications GA BE4GT UT WOS:000371708106078 ER PT B AU Lucas, GR AF Lucas, George R., Jr. BE Johnson, JT Patterson, ED TI Cyber Warfare SO ASHGATE RESEARCH COMPANION TO MILITARY ETHICS SE Justice International Law and Global Security LA English DT Article; Book Chapter AB The idea of ethics as pertaining to conflict in the newly recognized cyber domain is becoming increasingly recognized as an important sub-field of military ethics. Significant topics include background policy considerations regarding the conditions under which a cyber attack might be morally justified; the respective responsibilities of military and civilian personnel for the development and control of cyber strategy and tactics (including formulation of targeting decisions that would respect the moral and legal principles of non-combatant discrimination, proportionality, and military necessity); design and procurement of appropriate cyber weapons; and increasingly, questions about the appropriate professional conduct (and constraints on the conduct) of "cyber warriors." This chapter focuses largely upon these ethical (as distinct from the legal) challenges that cyber conflict and the need for cyber security present. C1 [Lucas, George R., Jr.] US Naval Acad, Vice Admiral James B Stockdale Ctr Eth Leadership, Eth, Annapolis, MD 21402 USA. [Lucas, George R., Jr.] Georgetown Univ, Washington, DC 20057 USA. [Lucas, George R., Jr.] Emory Univ, Atlanta, GA 30322 USA. [Lucas, George R., Jr.] Randolph Macon Coll, Ashland, VA USA. [Lucas, George R., Jr.] French Mil Acad St Cyr, Paris, France. [Lucas, George R., Jr.] Katholieke Univ Leuven, Louvain, Belgium. RP Lucas, GR (reprint author), Naval Postgrad Sch, Grad Sch Publ Policy, Eth & Publ Policy, Monterey, CA USA. NR 45 TC 1 Z9 1 U1 0 U2 0 PU ASHGATE PUBLISHING LTD PI ALDERSHOT PA GOWER HOUSE, CROFT ROAD, ALDERSHOT GU11 3HR, ENGLAND BN 978-1-4724-1629-2; 978-1-4724-1628-5 J9 JUST INT LAW GLOB PY 2015 BP 245 EP 258 PG 14 WC Ethics; Political Science SC Social Sciences - Other Topics; Government & Law GA BE2ZT UT WOS:000370362700021 ER PT J AU Squicciarini, A Rajtmajer, S Liu, Y Griffin, C AF Squicciarini, A. Rajtmajer, S. Liu, Y. Griffin, C. BE Pei, J Silvestri, F Tang, J TI Identification and characterization of cyberbullying dynamics in an online social network SO PROCEEDINGS OF THE 2015 IEEE/ACM INTERNATIONAL CONFERENCE ON ADVANCES IN SOCIAL NETWORKS ANALYSIS AND MINING (ASONAM 2015) LA English DT Proceedings Paper CT IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining (ASONAM) CY AUG 25-28, 2015 CL Paris, FRANCE SP IEEE, Assoc Comp Machinery, ACM SIGKDD, IEEE Comp Soc, IEEE TCDE, Springer, Cisco, Telecom ParisTech AB Cyberbullying is an increasingly prevalent phenomenon impacting young adults. In this paper, we present a study on both detecting cyberbullies in online social networks and identifying the pairwise interactions between users through which the influence of bullies seems to spread. In particular, we investigate the role of user demographics and social network features in predicting how users will respond to a cyberbullying comment. We characterize the influencer/influenced relationship by which a user who has no history of abuse observes a peer engaging in bullying and follows suit. To our knowledge, this is the first effort modeling peer pressure and social dynamics with analytical models. We validate our models on two distinct social network datasets, totalling over 16, 000 posts. Our results offer insight into the dynamics of bullying and confirm social theories on the power of peer groups in the cyberworld. A full version of this paper is available on arXiv.org. C1 [Squicciarini, A.; Liu, Y.] Penn State Univ, Coll Informat Sci & Technol, State Coll, PA 16802 USA. [Rajtmajer, S.] Penn State Univ, Dept Math, State Coll, PA 16802 USA. [Griffin, C.] US Naval Acad, Dept Math, Annapolis, MD 21402 USA. RP Squicciarini, A (reprint author), Penn State Univ, Coll Informat Sci & Technol, State Coll, PA 16802 USA. EM acs20@psu.edu; smr48@psu.edu; yzl160@psu.edu; griffinch@ieee.org NR 18 TC 2 Z9 2 U1 3 U2 5 PU ASSOC COMPUTING MACHINERY PI NEW YORK PA 1515 BROADWAY, NEW YORK, NY 10036-9998 USA BN 978-1-4503-3854-7 PY 2015 BP 280 EP 285 DI 10.1145/2808797.2809398 PG 6 WC Computer Science, Artificial Intelligence; Computer Science, Information Systems SC Computer Science GA BE4JN UT WOS:000371793500037 ER PT J AU Liao, C Squicciarini, A Griffin, C Rajtmajer, S AF Liao, Cong Squicciarini, Anna Griffin, Christopher Rajtmajer, Sarah BE Pei, J Silvestri, F Tang, J TI A Hybrid Epidemic Model for Antinormative Behavior in Online Social Networks SO PROCEEDINGS OF THE 2015 IEEE/ACM INTERNATIONAL CONFERENCE ON ADVANCES IN SOCIAL NETWORKS ANALYSIS AND MINING (ASONAM 2015) LA English DT Proceedings Paper CT IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining (ASONAM) CY AUG 25-28, 2015 CL Paris, FRANCE SP IEEE, Assoc Comp Machinery, ACM SIGKDD, IEEE Comp Soc, IEEE TCDE, Springer, Cisco, Telecom ParisTech AB In this paper, we describe a novel approach to investigate negative behavior dynamics in online social networks as epidemic phenomena. We present a finite-state machine model for time-varying epidemic dynamics, and validate this model with experiments over a large dataset of Youtube commentaries, indicating how different epidemic patterns of behavior can be tied to specific interaction patterns among users. A full version of this paper is available on arXiv.org. C1 [Liao, Cong; Squicciarini, Anna] Penn State Univ, Coll Informat Sci & Technol, University Pk, PA 16802 USA. [Griffin, Christopher] US Naval Acad, Dept Math, Annapolis, MD 21402 USA. [Rajtmajer, Sarah] Penn State Univ, Dept Math, University Pk, PA 16802 USA. RP Liao, C (reprint author), Penn State Univ, Coll Informat Sci & Technol, University Pk, PA 16802 USA. EM cxl491@psu.edu; acs20@psu.edu; griffinch@ieee.org; smr48@psu.edu NR 7 TC 0 Z9 0 U1 0 U2 0 PU ASSOC COMPUTING MACHINERY PI NEW YORK PA 1515 BROADWAY, NEW YORK, NY 10036-9998 USA BN 978-1-4503-3854-7 PY 2015 BP 1563 EP 1564 DI 10.1145/2808797.2809334 PG 2 WC Computer Science, Artificial Intelligence; Computer Science, Information Systems SC Computer Science GA BE4JN UT WOS:000371793500232 ER PT S AU Dermer, CD AF Dermer, Charles D. BE Prandini, E Toscano, S TI Impact of Fermi-LAT and AMS-02 results on cosmic-ray astrophysics SO SUGAR 2015 - SEARCHING FOR THE SOURCES OF GALACTIC COSMIC RAYS SE EPJ Web of Conferences LA English DT Proceedings Paper CT Conference on Searching for the Sources of Galactic Cosmic Rays (SuGAR) CY JAN 21-23, 2015 CL Geneva, SWITZERLAND ID PARTICLE-ACCELERATION; PION-PRODUCTION; PROPAGATION; SPECTRA; GAMMA; COLLISIONS; RADIATION; PLASMAS; ORIGIN; PROTON AB This article reviews a few topics relevant to Galactic cosmic-ray astrophysics, focusing on the recent AMS-02 data release and Fermi Large Area Telescope data on the diffuse Galactic gamma-ray emissivity. Calculations are made of the diffuse cosmic-ray induced p + p -> pi(0) -> 2 gamma spectra, normalized to the AMS-02 cosmic-ray proton spectrum at approximate to 10 - 100GV, with and without a hardening in the cosmic-ray proton spectrum at rigidities R greater than or similar to 300GV. A single power-law momentum "shock" spectrum for the local interstellar medium cosmic-ray proton spectrum cannot be ruled out from the gamma-ray emissivity data alone without considering the additional contribution of electron bremsstrahlung. Metallicity corrections are discussed, and a maximal range of nuclear enhancement factors from 1.52 to 1.92 is estimated. Origins of the 300GV cosmic-ray proton and alpha-particle hardening are discussed. C1 [Dermer, Charles D.] US Naval Res Lab, Div Space Sci, Washington, DC USA. RP Dermer, CD (reprint author), US Naval Res Lab, Div Space Sci, Washington, DC USA. EM charles.dermer@nrl.navy.mil NR 45 TC 0 Z9 0 U1 1 U2 1 PU E D P SCIENCES PI CEDEX A PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A, FRANCE SN 2100-014X J9 EPJ WEB CONF PY 2015 VL 105 AR 03001 DI 10.1051/epjconf/201510503001 PG 6 WC Physics, Multidisciplinary; Physics, Particles & Fields SC Physics GA BE5CR UT WOS:000372585800012 ER PT S AU Fataliyev, Z Han, D Imamverdiyev, Y Hanseok, KO AF Fataliyev, Zaur Han, David Imamverdiyev, Yadigar Hanseok, K. O. GP IEEE TI Video Summarization based on Extracted Key Position of Spotted Objects SO 2015 IEEE INTERNATIONAL CONFERENCE ON CONSUMER ELECTRONICS (ICCE) SE IEEE International Symposium on Consumer Electronics LA English DT Proceedings Paper CT IEEE International Conference on Consumer Electronics (ICCE) CY JAN 09-12, 2015 CL Las Vegas, NV SP IEEE AB This paper proposes a novel fusion method for summarization of surveillance videos based on extracted key positions of spotted objects in observed area. Accumulated energy of object is calculated by analyzing its motion pattern for key position extraction. The method allows to summarize long videos into a single index frame. Experimental results demonstrate its effectiveness. C1 [Fataliyev, Zaur; Hanseok, K. O.] Korea Univ, Sch Elect Engn, Seoul, South Korea. [Han, David] Off Naval Res, Arlington, VA 22217 USA. [Imamverdiyev, Yadigar] ANAS Inst Informat Technol, Baku, Azerbaijan. RP Fataliyev, Z (reprint author), Korea Univ, Sch Elect Engn, Seoul, South Korea. 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 2158-3994 BN 978-1-4799-7543-3 J9 I SYMP CONSUM ELECTR PY 2015 BP 331 EP 332 PG 2 WC Engineering, Electrical & Electronic SC Engineering GA BE4LR UT WOS:000371904100140 ER PT S AU Ju, J Ku, B Kim, D Song, T Han, DK Ko, H AF Ju, Jaeyong Ku, Bonhwa Kim, Daehun Song, Taeyup Han, David K. Ko, Hanseok GP IEEE TI Online Multi-Person Tracking for Intelligent Video Surveillance Systems SO 2015 IEEE INTERNATIONAL CONFERENCE ON CONSUMER ELECTRONICS (ICCE) SE IEEE International Symposium on Consumer Electronics LA English DT Proceedings Paper CT IEEE International Conference on Consumer Electronics (ICCE) CY JAN 09-12, 2015 CL Las Vegas, NV SP IEEE AB This paper presents a novel online multi-person tracking method based on tracking-by-detection framework for intelligent video surveillance systems consisting of an internet protocol (IP) camera and a network video recorder (NVR). First, the two-step data association based on high/low confidence targets is proposed for handling long-term occlusions effectively. Additionally, the method that reasons and handles severe inter-target occlusion is proposed. Representative experimental results demonstrate the effectiveness and robustness of the proposed method. C1 [Ju, Jaeyong; Ku, Bonhwa; Kim, Daehun; Song, Taeyup; Ko, Hanseok] Korea Univ, Sch Elect Engn, Seoul, South Korea. [Han, David K.] Off Naval Res, Arlington, VA 22217 USA. RP Ju, J (reprint author), Korea Univ, Sch Elect Engn, Seoul, South Korea. NR 4 TC 2 Z9 2 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2158-3994 BN 978-1-4799-7543-3 J9 I SYMP CONSUM ELECTR PY 2015 BP 345 EP 346 PG 2 WC Engineering, Electrical & Electronic SC Engineering GA BE4LR UT WOS:000371904100145 ER PT S AU Lee, JS Ainsworth, TL Wang, YT AF Lee, Jong-Sen Ainsworth, Thomas L. Wang, Yanting GP IEEE TI INVESTIGATING SLANTED DOUBLE BOUNCE SCATTERING MECHANISMS BASED ON SCATTERING MODELS SO 2015 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS) SE IEEE International Symposium on Geoscience and Remote Sensing IGARSS LA English DT Proceedings Paper CT IEEE International Geoscience and Remote Sensing Symposium (IGARSS) CY JUL 26-31, 2015 CL Milan, ITALY SP IEEE DE Polarimetric SAR; Radar Polarimetry; Polarization Orientation Estimation AB In this paper, we investigate the double bounce radar backscattering from building walls not aligned in the azimuth direction (i. e., slanted double bounce scattering) based on scattering models. We apply the Fresnel equation for reflections from the building wall, and then the bistatic small perturbation model developed by Ulaby for ground scattering. Our analysis indicates that scattering matrix is not symmetrical for the path from radar to wall to ground and back to radar, but adding the reverse path from radar to ground to wall and back to radar makes the scattering matrix symmetrical. The effect on the polarization orientation estimation for an urban scene using L-band E-SAR will be analyzed. C1 [Lee, Jong-Sen; Ainsworth, Thomas L.; Wang, Yanting] Naval Res Lab, Washington, DC 20375 USA. [Lee, Jong-Sen] Computat Phys Inc, Springfield, VA USA. RP Lee, JS (reprint author), Naval Res Lab, Washington, DC 20375 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 2153-6996 BN 978-1-4799-7929-5 J9 INT GEOSCI REMOTE SE PY 2015 BP 235 EP 238 PG 4 WC Engineering, Electrical & Electronic; Geosciences, Multidisciplinary; Remote Sensing SC Engineering; Geology; Remote Sensing GA BE4GM UT WOS:000371696700061 ER PT S AU Hwang, PA Stoffelen, A van Zadelhoff, GJ Perrie, W Zhang, B Li, H Shen, H AF Hwang, Paul A. Stoffelen, Ad van Zadelhoff, Gerd-Jan Perrie, William Zhang, Biao Li, Haiyan Shen, Hui GP IEEE TI A C-BAND CROSS POLARIZATION GEOPHYSICAL MODEL FUNCTION SO 2015 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS) SE IEEE International Symposium on Geoscience and Remote Sensing IGARSS LA English DT Proceedings Paper CT IEEE International Geoscience and Remote Sensing Symposium (IGARSS) CY JUL 26-31, 2015 CL Milan, ITALY SP IEEE ID WIND SPEEDS C1 [Hwang, Paul A.] Naval Res Lab, Remote Sensing Div, Washington, DC 20375 USA. [Stoffelen, Ad; van Zadelhoff, Gerd-Jan] Royal Netherlands Meteorol Inst, NL-3730 AE De Bilt, Netherlands. [Perrie, William; Zhang, Biao; Li, Haiyan; Shen, Hui] Fisheries & Oceans Canada, Bedford Inst Oceanog, Dartmouth, NS B2Y 4A2, Canada. [Zhang, Biao] Nanjing Univ Informat Sci & Technol, Sch Marine Sci, Nanjing, Jiangsu, Peoples R China. [Li, Haiyan] Chinese Acad Sci, Key Lab Computat Geodynam, Beijing, Peoples R China. [Li, Haiyan] Chinese Acad Sci, Beijing, Peoples R China. [Shen, Hui] Chinese Acad Sci, Inst Oceanol, Qingdao, Peoples R China. RP Hwang, PA (reprint author), Naval Res Lab, Remote Sensing Div, Washington, DC 20375 USA. NR 11 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 978-1-4799-7929-5 J9 INT GEOSCI REMOTE SE PY 2015 BP 1207 EP 1210 PG 4 WC Engineering, Electrical & Electronic; Geosciences, Multidisciplinary; Remote Sensing SC Engineering; Geology; Remote Sensing GA BE4GM UT WOS:000371696701082 ER PT S AU Toporkov, JV Sletten, MA AF Toporkov, Jakov V. Sletten, Mark A. GP IEEE TI INVESTIGATION OF JOINT PROBABILITY DENSITY FUNCTION OF HIGH-RESOLUTION VV-AND HH-POLARIZED X-BAND SEA BACKSCATTER OBTAINED THROUGH DIRECT NUMERICAL SIMULATIONS SO 2015 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS) SE IEEE International Symposium on Geoscience and Remote Sensing IGARSS LA English DT Proceedings Paper CT IEEE International Geoscience and Remote Sensing Symposium (IGARSS) CY JUL 26-31, 2015 CL Milan, ITALY SP IEEE DE numerical simulations; sea surface electromagnetic scattering; clutter statistics; radar polarimetry ID WAVES AB Joint statistical properties of range-resolved sea backscatter at different polarizations are investigated using large Monte Carlo ensembles of numerically generated data. The simulations are based on the first-principles boundary integral equation technique in the two-dimensional (2-D) space and produce noise-free sets of backscatter corresponding to well-defined wind conditions. This study focuses on the joint probability density function (PDF) of vertically (VV) and horizontally (HH) polarized clutter intensities, investigating the behavior of the function's orientation and shape with variations in the incidence angle and wind speed. Comparisons with the results generated using coherent formulation of the popular Two-Scale Model reveal strengths and weaknesses of the latter in reproducing detailed statistical descriptors of sea clutter such as the joint VV-HH PDF. C1 [Toporkov, Jakov V.; Sletten, Mark A.] Naval Res Lab, Remote Sensing Div, Washington, DC 20375 USA. RP Toporkov, JV (reprint author), Naval Res Lab, Remote Sensing Div, Washington, DC 20375 USA. NR 8 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2153-6996 BN 978-1-4799-7929-5 J9 INT GEOSCI REMOTE SE PY 2015 BP 1610 EP 1613 PG 4 WC Engineering, Electrical & Electronic; Geosciences, Multidisciplinary; Remote Sensing SC Engineering; Geology; Remote Sensing GA BE4GM UT WOS:000371696701183 ER PT S AU Sletten, M Hwang, P Toporkov, J Menk, S Rosenberg, L Jansen, R AF Sletten, Mark Hwang, Paul Toporkov, Jakov Menk, Steve Rosenberg, Luke Jansen, Robert GP IEEE TI ANALYSIS AND CORRECTION OF MARITIME SAR SIGNATURES WITH THE NRL MSAR SO 2015 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS) SE IEEE International Symposium on Geoscience and Remote Sensing IGARSS LA English DT Proceedings Paper CT IEEE International Geoscience and Remote Sensing Symposium (IGARSS) CY JUL 26-31, 2015 CL Milan, ITALY SP IEEE DE synthetic aperture radar; multi-phase center; maritime signature ID RADAR AB This paper describes the Naval Research Laboratory Multi Aperture Synthetic Aperture Radar (NRL MSAR) and presents initial results from the inaugural of this system. The NRL MSAR is an airborne test bed designed to investigate remote sensing and surveillance applications that exploit multiple along-track phase centers, in particular, applications that require measurement of scene motion. This paper presents the results of initial coherent analyses to estimate scene and target motion and to correct the image distortions that these motions induce. These images were collected over an ocean inlet and contain a variety of moving backscatter sources, including automobiles, ships, shoaling ocean waves, and tidal currents. C1 [Sletten, Mark; Hwang, Paul; Toporkov, Jakov; Menk, Steve; Jansen, Robert] Naval Res Lab, Washington, DC 20375 USA. [Rosenberg, Luke] Univ Adelaide, Def Sci & Technol Org, Adelaide, SA 5005, Australia. RP Sletten, M (reprint author), Naval Res Lab, Washington, DC 20375 USA. EM mark.sletten@nrl.navy.mil NR 9 TC 0 Z9 0 U1 1 U2 2 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2153-6996 BN 978-1-4799-7929-5 J9 INT GEOSCI REMOTE SE PY 2015 BP 2489 EP 2492 PG 4 WC Engineering, Electrical & Electronic; Geosciences, Multidisciplinary; Remote Sensing SC Engineering; Geology; Remote Sensing GA BE4GM UT WOS:000371696702147 ER PT S AU Hwang, PA Fois, F AF Hwang, Paul A. Fois, Franco GP IEEE TI INFERRING SURFACE ROUGHNESS AND BREAKING WAVE PROPERTIES FROM POLARIMETRIC RADAR BACKSCATTERING SO 2015 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS) SE IEEE International Symposium on Geoscience and Remote Sensing IGARSS LA English DT Proceedings Paper CT IEEE International Geoscience and Remote Sensing Symposium (IGARSS) CY JUL 26-31, 2015 CL Milan, ITALY SP IEEE ID OCEAN; SPECTRA; SLOPE; FOAM C1 [Hwang, Paul A.] Naval Res Lab, Remote Sensing Div, Washington, DC 20375 USA. [Fois, Franco] Delft Univ Technol, Dept Geosci & Remote Sensing, NL-2600 AA Delft, Netherlands. RP Hwang, PA (reprint author), Naval Res Lab, Remote Sensing Div, Washington, DC 20375 USA. NR 19 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 978-1-4799-7929-5 J9 INT GEOSCI REMOTE SE PY 2015 BP 2529 EP 2532 PG 4 WC Engineering, Electrical & Electronic; Geosciences, Multidisciplinary; Remote Sensing SC Engineering; Geology; Remote Sensing GA BE4GM UT WOS:000371696702158 ER PT S AU Gemmrich, J Pleskachevsky, A Lehner, S Rogers, E AF Gemmrich, Johannes Pleskachevsky, Andrey Lehner, Susanne Rogers, Erick GP IEEE TI SURFACE WAVES IN ARCTIC SEAS, OBSERVED FROM TERRASAR-X SO 2015 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS) SE IEEE International Symposium on Geoscience and Remote Sensing IGARSS LA English DT Proceedings Paper CT IEEE International Geoscience and Remote Sensing Symposium (IGARSS) CY JUL 26-31, 2015 CL Milan, ITALY SP IEEE DE Wave retrieval from SAR; Arctic sea state; Wavewatch III model - remote sensing comparison AB The need for wide-spread, up-to-date sea state observations in the emerging ice-free Arctic will further increase as the region will open up to marine operations. Here we present an example of spatial wave field parameters obtained from a TerraSAR-X StripMap swath in the southern Beaufort Sea. Significant wave heights varied from < lm to > 2.2m over distances of less than 50km. These results are compared to current state-of-the-art implementation of spectral wave prediction models. Overall, good agreement is observed, and limitations of the remote sensing algorithm and the wave model are highlighted. C1 [Gemmrich, Johannes] Univ Victoria, Phys & Astron, Victoria, BC, Canada. [Pleskachevsky, Andrey; Lehner, Susanne] German Aerosp Ctr DLR, FMS, Bremen, Germany. [Rogers, Erick] Naval Res Lab, Stennis Space Ctr, MS USA. RP Gemmrich, J (reprint author), Univ Victoria, Phys & Astron, Victoria, BC, Canada. 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 2153-6996 BN 978-1-4799-7929-5 J9 INT GEOSCI REMOTE SE PY 2015 BP 3615 EP 3617 PG 3 WC Engineering, Electrical & Electronic; Geosciences, Multidisciplinary; Remote Sensing SC Engineering; Geology; Remote Sensing GA BE4GM UT WOS:000371696703179 ER PT S AU Cichella, V Kaminer, I Dobrokhodov, V Hovakimyan, N AF Cichella, Venanzio Kaminer, Isaac Dobrokhodov, Vladimir Hovakimyan, Naira GP IEEE TI Coordinated Vision-Based Tracking for Multiple UAVs SO 2015 IEEE/RSJ INTERNATIONAL CONFERENCE ON INTELLIGENT ROBOTS AND SYSTEMS (IROS) SE IEEE International Conference on Intelligent Robots and Systems LA English DT Proceedings Paper CT IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS) CY SEP 28-OCT 02, 2015 CL Hamburg, GERMANY SP IEEE, RSJ, Univ Hamburg, DFG, RA, New Technol Fdn, SICE, KUKA, DJI, Rethink Robot, BOSCH, Chinese Acad Sci, SIAT, Boozhong, Adept, Automatica, HIT, Ascending Technol, OPTOFORCE, DST Robot, BA Syst, Rainbow Robot, SIA, CLEARPATH Robot, Swiss Natl Ctr Competence Res Robot, SINEVA, Dyson, SICK, Robocept, Force Dimension, Open Unit Robot, Luoyang Natl Univ Sci Park, Fuzhou Univ, Synapticon, Google, Technishce Univ Munchen, iRobot, Echord++, Khalifa Univ, Pan Robot, FESTO, Kinova Robot, SCHUNK, ies ID UNMANNED AERIAL VEHICLES; SYSTEM; GUIDANCE AB This paper tackles the problem of coordinated vision-based tracking of a ground target by a fleet of multiple UAVs that exchange information over a supporting time-varying network. The objective of this work is to formulate decentralized control algorithms that enable multiple vehicles to follow a target while coordinating their phase separation. A typical scenario involves multiple aerial surveillance UAVs which are required to monitor a moving ground object (target tracking), while maintaining a desired inter-vehicle separation (coordination). To solve the tracking problem, the yaw rate of each vehicle is used as control input, while the ground speeds are adjusted to achieve coordination. It is assumed that the UAVs are equipped with an internal autopilot, which is able to track yaw rate and ground speed commands. The performance of the coordinated vision-based tracking algorithm is evaluated as a function of target's velocity, tracking performance of the onboard autopilot, and the quality of service of the communication network. C1 [Cichella, Venanzio; Hovakimyan, Naira] Univ Illinois, Dept Mech Sci & Engn, Urbana, IL 61801 USA. [Kaminer, Isaac; Dobrokhodov, Vladimir] Naval Postgrad Sch, Dept Mech & Aerosp Engn, Monterey, CA 93943 USA. RP Cichella, V (reprint author), Univ Illinois, Dept Mech Sci & Engn, Urbana, IL 61801 USA. EM cichell2@illinois.edu; kaminer@ieee.org; vndobrok@ieee.org; nhovakim@illinois.edu NR 20 TC 1 Z9 1 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2153-0858 BN 978-1-4799-9994-1 J9 IEEE INT C INT ROBOT PY 2015 BP 656 EP 661 PG 6 WC Computer Science, Artificial Intelligence; Robotics SC Computer Science; Robotics GA BE4LI UT WOS:000371885400096 ER PT S AU Scott, GP Henshaw, CG Walker, ID Willimon, B AF Scott, Gregory P. Henshaw, C. Glen Walker, Ian D. Willimon, Bryan GP IEEE TI Autonomous Robotic Refueling of an Unmanned Surface Vehicle in Varying Sea States SO 2015 IEEE/RSJ INTERNATIONAL CONFERENCE ON INTELLIGENT ROBOTS AND SYSTEMS (IROS) SE IEEE International Conference on Intelligent Robots and Systems LA English DT Proceedings Paper CT IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS) CY SEP 28-OCT 02, 2015 CL Hamburg, GERMANY SP IEEE, RSJ, Univ Hamburg, DFG, RA, New Technol Fdn, SICE, KUKA, DJI, Rethink Robot, BOSCH, Chinese Acad Sci, SIAT, Boozhong, Adept, Automatica, HIT, Ascending Technol, OPTOFORCE, DST Robot, BA Syst, Rainbow Robot, SIA, CLEARPATH Robot, Swiss Natl Ctr Competence Res Robot, SINEVA, Dyson, SICK, Robocept, Force Dimension, Open Unit Robot, Luoyang Natl Univ Sci Park, Fuzhou Univ, Synapticon, Google, Technishce Univ Munchen, iRobot, Echord++, Khalifa Univ, Pan Robot, FESTO, Kinova Robot, SCHUNK, ies ID CONTINUUM ROBOTS; DESIGN AB In an effort to improve sailor safety during underway replenishment on the open sea, a robotic refueling system has been developed to autonomously refuel unmanned surface vehicles (USVs). The Rapid Autonomous Fuel Transfer (RAFT) project has demonstrated a methodology that could be used on the open water to autonomously refuel Navy vessels at significant sea states. The prototype refueling system is made up of two robotic arms: a rigid and precise industrial robotic manipulator to pinpoint the location of the target fuel tank and a novel soft pneumatic arm (Octarm) to provide compliant and safe contact with the USV. At the end of the Octarm, a magnetic end effector was designed (patent pending) to transfer a refueling "puck" from the robotic system to the target fuel tank. Acting under manual control or autonomously through visual tracking techniques, the robotic refueling system was shown to effectively transfer fuel to the target US Navy Sea Fox vessel under sea state 3.25 conditions at the US Army Aberdeen Test Center. The results demonstrate the feasibility of using a robotic solution to allow autonomous shore-to-ship or ship-to-USV refueling. It also illustrates the benefits and challenges of future robotic ship-to-USV refueling operations. This represents the first demonstrated use of a robotic system for fluid transfer to vessels in active sea states. This paper describes the design, development, and demonstration of the prototype autonomous refueling system. C1 [Scott, Gregory P.; Henshaw, C. Glen] Naval Res Lab, Spacecraft Engn Dept, 4555 Overlook Ave SW, Washington, DC 20375 USA. [Walker, Ian D.; Willimon, Bryan] Clemson Univ, Dept Elect & Comp Engn, Clemson, SC 29634 USA. RP Scott, GP (reprint author), Naval Res Lab, Spacecraft Engn Dept, 4555 Overlook Ave SW, Washington, DC 20375 USA. NR 15 TC 2 Z9 2 U1 1 U2 2 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2153-0858 BN 978-1-4799-9994-1 J9 IEEE INT C INT ROBOT PY 2015 BP 1664 EP 1671 PG 8 WC Computer Science, Artificial Intelligence; Robotics SC Computer Science; Robotics GA BE4LI UT WOS:000371885401122 ER PT S AU Bays, MJ Wettergren, TA AF Bays, Matthew J. Wettergren, Thomas A. GP IEEE TI A Solution to the Service Agent Transport Problem SO 2015 IEEE/RSJ INTERNATIONAL CONFERENCE ON INTELLIGENT ROBOTS AND SYSTEMS (IROS) SE IEEE International Conference on Intelligent Robots and Systems LA English DT Proceedings Paper CT IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS) CY SEP 28-OCT 02, 2015 CL Hamburg, GERMANY SP IEEE, RSJ, Univ Hamburg, DFG, RA, New Technol Fdn, SICE, KUKA, DJI, Rethink Robot, BOSCH, Chinese Acad Sci, SIAT, Boozhong, Adept, Automatica, HIT, Ascending Technol, OPTOFORCE, DST Robot, BA Syst, Rainbow Robot, SIA, CLEARPATH Robot, Swiss Natl Ctr Competence Res Robot, SINEVA, Dyson, SICK, Robocept, Force Dimension, Open Unit Robot, Luoyang Natl Univ Sci Park, Fuzhou Univ, Synapticon, Google, Technishce Univ Munchen, iRobot, Echord++, Khalifa Univ, Pan Robot, FESTO, Kinova Robot, SCHUNK, ies AB We introduce a new problem in the area of scheduling and route planning operations called the service agent transport problem (SATP). Within the SATP, autonomous service agents must perform tasks at a number of locations. The agents are free to move between locations, however, the agents may also be transported throughout the region by a limited number of faster-moving transport agents. The goal of the SATP is to plan a schedule of service agent and transport agent actions such that all locations are serviced in the shortest amount of time. We pose the problem using a mixed-integer linear programming optimization framework, and compare several complexity reduction heuristics to the full optimization. C1 [Bays, Matthew J.] Naval Surface Warfare Ctr, Panama City Div, Panama City, FL 32407 USA. [Wettergren, Thomas A.] Naval Undersea Warfare Ctr, Newport, RI 02840 USA. RP Bays, MJ (reprint author), Naval Surface Warfare Ctr, Panama City Div, Panama City, FL 32407 USA. EM matthew.bays@navy.mil; thomas.wettergren@navy.mil NR 20 TC 1 Z9 1 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2153-0858 BN 978-1-4799-9994-1 J9 IEEE INT C INT ROBOT PY 2015 BP 6443 EP 6450 PG 8 WC Computer Science, Artificial Intelligence; Robotics SC Computer Science; Robotics GA BE4LI UT WOS:000371885406085 ER PT S AU Lumb, MP Schmieder, KJ Gonzalez, M Mack, S Yakes, MK Meitl, M Burroughs, S Ebert, C Bennett, MF Forbes, DV Sheng, X Rogers, JA Walters, RJ AF Lumb, Matthew P. Schmieder, Kenneth J. Gonzalez, Maria Mack, Shawn Yakes, Michael K. Meitl, Matthew Burroughs, Scott Ebert, Chris Bennett, Mitchell F. Forbes, David V. Sheng, Xing Rogers, John A. Walters, Robert J. BE Siefer, G Baudrit, M Anton, I TI Realizing the Next Generation of CPV Cells Using Transfer Printing SO 11TH INTERNATIONAL CONFERENCE ON CONCENTRATOR PHOTOVOLTAIC SYSTEMS (CPV-11) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 11th International Conference on Concentrator Photovoltaic Systems (CPV) CY APR 13-15, 2015 CL Aix les Bains, FRANCE ID SOLAR-CELLS AB Transfer-printing is an important, commercial technology for manufacturing state of the art CPV modules, and has emerged recently as a key enabling technology for the realization of ultra-high-efficiency, mechanically stacked III-V solar cells with low cost. This paper presents the latest results for microscale CPV cells grown on GaAs, InP and GaSb substrates for ultra-high-efficiency, four-terminal, mechanically stacked architectures. The latest findings from a combination of modeling, growth, processing and characterization of single and multijunction solar cells are described, and the roadmap to the long-term goal of using transfer-printing to produce the first solar cell with 50% conversion efficiency is outlined. C1 [Lumb, Matthew P.] George Washington Univ, Washington, DC USA. [Lumb, Matthew P.; Schmieder, Kenneth J.; Gonzalez, Maria; Mack, Shawn; Yakes, Michael K.; Bennett, Mitchell F.; Walters, Robert J.] Naval Res Lab, Washington, DC 20375 USA. [Gonzalez, Maria; Bennett, Mitchell F.] Sotera Def Solut, Annapolis Jct, MD USA. [Meitl, Matthew; Burroughs, Scott] Semprius Inc, Durham, NC USA. [Ebert, Chris] Veeco Proc Equipment Inc, Somerset, NJ USA. [Forbes, David V.] Rochester Inst Technol, Rochester, NY 14623 USA. [Sheng, Xing; Rogers, John A.] Univ Illinois, Urbana, IL 61801 USA. RP Lumb, MP (reprint author), George Washington Univ, Washington, DC USA. EM matthew.lumb.ctr.uk@nrl.navy.mil RI Rogers, John /L-2798-2016; Mack, Shawn/F-4008-2011; Sheng, Xing/B-7661-2011 OI Mack, Shawn/0000-0001-6696-0483; Sheng, Xing/0000-0002-8744-1700 NR 9 TC 0 Z9 0 U1 3 U2 5 PU AMER INST PHYSICS PI MELVILLE PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA SN 0094-243X BN 978-0-7354-1326-9 J9 AIP CONF PROC PY 2015 VL 1679 AR 040007 DI 10.1063/1.4931518 PG 7 WC Energy & Fuels; Engineering, Electrical & Electronic; Physics, Applied SC Energy & Fuels; Engineering; Physics GA BE4KO UT WOS:000371822900018 ER PT S AU Rudolph, SM Wall, WS AF Rudolph, Scott M. Wall, Walter S. GP IEEE TI Nonlinear Multiconductor Transmission Line Analysis of Broadband Switching Metamaterials SO 2015 IEEE INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION & USNC/URSI NATIONAL RADIO SCIENCE MEETING SE IEEE Antennas and Propagation Society International Symposium LA English DT Proceedings Paper CT IEEE International Symposium on Antennas and Propagation / USNC/URSI National North American Radio Science Meeting CY JUL 19-24, 2015 CL Vancouver, CANADA SP Inst Elect & Elect Engineers, IEEE Antennas & Propagat Soc, USNC, URSI AB In this paper we present a multiconductor transmission line (MTL) model to analyze the time-domain response of broadband switching metamaterials. This analysis employs coupled transmission lines loaded with nonlinear elements to model the response of these structures to a vertically polarized free space excitation. Using this analysis we examine the time-domain response of a broadband switching metamaterial structure loaded with high-speed Schottky diodes. Experimental results of the metamaterial in WR-284 waveguide are presented, which show good agreement with results generated from the MTL analysis. C1 [Rudolph, Scott M.; Wall, Walter S.] US Naval Res Lab, Tact Elect Warfare Div, Washington, DC USA. RP Rudolph, SM (reprint author), US Naval Res Lab, Tact Elect Warfare Div, Washington, DC USA. EM scott.rudolph@nrl.navy.mil 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 SN 1522-3965 BN 978-1-4799-7815-1 J9 IEEE ANTENNAS PROP PY 2015 BP 75 EP 76 PG 2 WC Telecommunications SC Telecommunications GA BE3YW UT WOS:000371401400037 ER PT S AU Raeker, BO Rudolph, SM AF Raeker, Brian O. Rudolph, Scott M. GP IEEE TI Cylindrical Near-Field Directing Shell SO 2015 IEEE INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION & USNC/URSI NATIONAL RADIO SCIENCE MEETING SE IEEE Antennas and Propagation Society International Symposium LA English DT Proceedings Paper CT IEEE International Symposium on Antennas and Propagation / USNC/URSI National North American Radio Science Meeting CY JUL 19-24, 2015 CL Vancouver, CANADA SP Inst Elect & Elect Engineers, IEEE Antennas & Propagat Soc, USNC, URSI AB In this paper, the design of a near-field shell is presented. A near-field shell is a single layer impedance sheet enclosing a radiating source that re-shapes the electromagnetic field pattern at a pre-determined image distance outside of the shell. The general design process for a cylindrical near-field shell, along with an example of a near-field shell using printed circuit board impedances to produce an arbitrary azimuthal blocking sector, is presented. Simulation results of the example show that complete azimuthal amplitude control can be achieved and that the average electric field amplitude reduction is 26.21 dB between the passing and blocking sectors of the near-field shell. C1 [Raeker, Brian O.; Rudolph, Scott M.] US Naval Res Lab, Washington, DC USA. RP Raeker, BO (reprint author), US Naval Res Lab, Washington, DC 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 SN 1522-3965 BN 978-1-4799-7815-1 J9 IEEE ANTENNAS PROP PY 2015 BP 248 EP 249 PG 2 WC Telecommunications SC Telecommunications GA BE3YW UT WOS:000371401400121 ER PT S AU Rao, SM AF Rao, Sadasiva M. GP IEEE TI Power Series/MOM Solution to EM Scattering by Electrically Large PEC Objects SO 2015 IEEE INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION & USNC/URSI NATIONAL RADIO SCIENCE MEETING SE IEEE Antennas and Propagation Society International Symposium LA English DT Proceedings Paper CT IEEE International Symposium on Antennas and Propagation / USNC/URSI National North American Radio Science Meeting CY JUL 19-24, 2015 CL Vancouver, CANADA SP Inst Elect & Elect Engineers, IEEE Antennas & Propagat Soc, USNC, URSI AB In this work, we present a new method of moments solution procedure to obtain induced currents on a large conducting body due to a plane wave incidence. The procedure involves dividing the total number of basis functions into a small number of groups thereby casting the moment matrix into a collection of submatrices representing self and mutual interaction between the groups. Next, the procedure involves eliminating the interaction of two immediate neighbors on any selected group. This process results in a strong block diagonal moment matrix plus zeros in the blocks residing on either side of the diagonal block. The new matrix can be inverted using power series approach and accurate solution can be efficiently obtained. The present approach is simple, efficient, and retains all the advantages of conventional method of moments scheme. C1 [Rao, Sadasiva M.] Naval Res Lab, Div Radar, Washington, DC 20375 USA. RP Rao, SM (reprint author), Naval Res Lab, Div Radar, Washington, DC 20375 USA. 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 SN 1522-3965 BN 978-1-4799-7815-1 J9 IEEE ANTENNAS PROP PY 2015 BP 1166 EP 1167 PG 2 WC Telecommunications SC Telecommunications GA BE3YW UT WOS:000371401401137 ER PT S AU Dorsey, WM Zaghloul, AI AF Dorsey, W. Mark Zaghloul, Amir I. GP IEEE TI Hybrid Array Pattern Calculation Technique SO 2015 IEEE INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION & USNC/URSI NATIONAL RADIO SCIENCE MEETING SE IEEE Antennas and Propagation Society International Symposium LA English DT Proceedings Paper CT IEEE International Symposium on Antennas and Propagation / USNC/URSI National North American Radio Science Meeting CY JUL 19-24, 2015 CL Vancouver, CANADA SP Inst Elect & Elect Engineers, IEEE Antennas & Propagat Soc, USNC, URSI DE Phased array; dual-band antenna ID FINITE; ELEMENT; BAND AB An array analysis technique is presented that uses nine embedded element patterns to approximate all embedded element patterns. The hybrid technique avoids shortcomings of other common approaches that use a single embedded element approximation, while also providing significant time/computational savings compared to exact approaches including simulations and/or measurements of all embedded element patterns. The technique is then applied to an array of dual-circularly polarized antenna elements. C1 [Dorsey, W. Mark] US Naval Res Lab, Div Radar, Washington, DC 20375 USA. [Zaghloul, Amir I.] US Army Res Lab, SEDD, Antennas & RF Technol Integrat Branch, Adelphi, MD 20783 USA. RP Dorsey, WM (reprint author), US Naval Res Lab, Div Radar, Washington, DC 20375 USA. EM wmdorsey@vt.edu; amir.i.zaghloul.civ@mail.mil 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 1522-3965 BN 978-1-4799-7815-1 J9 IEEE ANTENNAS PROP PY 2015 BP 2503 EP 2504 PG 2 WC Telecommunications SC Telecommunications GA BE3YW UT WOS:000371401402268 ER PT S AU Kindt, R Vouvakis, M AF Kindt, Rick Vouvakis, Marinos GP IEEE TI Low-Cost End-Point Modular PUMA Array SO 2015 IEEE INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION & USNC/URSI NATIONAL RADIO SCIENCE MEETING SE IEEE Antennas and Propagation Society International Symposium LA English DT Proceedings Paper CT IEEE International Symposium on Antennas and Propagation / USNC/URSI National North American Radio Science Meeting CY JUL 19-24, 2015 CL Vancouver, CANADA SP Inst Elect & Elect Engineers, IEEE Antennas & Propagat Soc, USNC, URSI AB A simple and straight-forward PUMA array design is presented. Where earlier PUMA arrays were built using less-reliable Rogers 5880LZ material and were modular at the feed points, the presented array is manufactured using significantly fewer processing steps on more reliable Rogers 6002 or 3003 and is modular at the dipole end points. The array can achieve 3: 1 operational bandwidth with VSWR < 2 for 45-degree scans in all planes, VSWR < 3 for 60-degree scans in all planes. The simple low-profile design is ideal for many phased array applications and is suitable for manufacturing across a wide range of frequencies with proven results up to 40GHz. C1 [Kindt, Rick] Naval Res Lab, Div Radar, Washington, DC 20375 USA. [Vouvakis, Marinos] Univ Massachusetts, ECE Dept, Amherst, MA 01003 USA. RP Kindt, R (reprint author), Naval Res Lab, Div Radar, Washington, DC 20375 USA. EM rwkindt@airborne.nrl.navy.mil; vouvakis@engin.umass.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 1522-3965 BN 978-1-4799-7815-1 J9 IEEE ANTENNAS PROP PY 2015 BP 2513 EP 2514 PG 2 WC Telecommunications SC Telecommunications GA BE3YW UT WOS:000371401402271 ER PT S AU Lee, MY Logan, JT Kindt, RW Vouvakis, MN AF Lee, Michael Y. Logan, John T. Kindt, Rick W. Vouvakis, Marinos N. GP IEEE TI Simplified Design of 6: 1 PUMA Arrays SO 2015 IEEE INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION & USNC/URSI NATIONAL RADIO SCIENCE MEETING SE IEEE Antennas and Propagation Society International Symposium LA English DT Proceedings Paper CT IEEE International Symposium on Antennas and Propagation / USNC/URSI National North American Radio Science Meeting CY JUL 19-24, 2015 CL Vancouver, CANADA SP Inst Elect & Elect Engineers, IEEE Antennas & Propagat Soc, USNC, URSI AB Advances in Planar Ultra-wideband Modular Antenna (PUMA) array architecture which have culminated into a 6: 1 bandwidth design without the use of an external backplane matching network are presented. This paper will examine the additional bandwidth-enhancing operational principles of the proposed dual-polarized 6: 1 PUMA array. A design and its respective full-wave simulations will then be presented, with results yielding a 6: 1 bandwidth with VSWR < 2 at broadside, VSWR < 2.6 scanning out to theta = 45 degrees, and a diagonal plane cross-polarization greater than 15 dB at theta = 45 degrees for the majority of the band. C1 [Logan, John T.; Vouvakis, Marinos N.] Univ Massachusetts, Dept Elect & Comp Engn, Amherst, MA 01003 USA. [Kindt, Rick W.] Naval Res Lab, Div Radar, Washington, DC 20375 USA. OI Logan, John/0000-0002-5174-6588 NR 2 TC 2 Z9 2 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 1522-3965 BN 978-1-4799-7815-1 J9 IEEE ANTENNAS PROP PY 2015 BP 2515 EP 2516 PG 2 WC Telecommunications SC Telecommunications GA BE3YW UT WOS:000371401402272 ER PT S AU Spiker, C Santiago, R Goff, T Danilov, C Kim, JH Adamson, B Shur, D Manousakis, K AF Spiker, Carrie Santiago, Rodolfo Goff, Thomas Danilov, Claudiu Kim, Jae H. Adamson, Brian Shur, David Manousakis, Kyriakos GP IEEE TI Experiment and Field Demonstration of Serverless Group Communication SO 2015 IEEE MILITARY COMMUNICATIONS CONFERENCE (MILCOM 2015) SE IEEE Military Communications Conference LA English DT Proceedings Paper CT 34th IEEE Annual Military Communications Conference (MILCOM) on Leveraging Technology - The Joint Imperative CY OCT 26-28, 2015 CL Tampa, FL SP IEEE DE Communication networks; Group communications; Distributed networking; Content distribution networks; Serverless networks; Wireless networks; Multicast communication; Tactical torrents; P2P networks AB This paper presents a field experimentation and demonstration addressing serverless information services that provide both group messaging with ordering guarantees and robust file/media object sharing in a tactical edge communication environment. These serverless information services constitute the main functional components of our real time image and ordered annotation sharing application, called Tactigram. The purpose of Tactigram is to integrate serverless services in useful tool demonstrating the utility of real time information exchange to the warfighter. We show how a Group Communication Service (GCS) framework provides for quick exchange of small data, and tactical torrents (SISTO) provide for file sharing used by Tactigram. The demonstration was conducted as part of the Agile Bloodhound 2014 (AB14) field event. In accordance with AB14 use case scenarios, Android devices were used to exchange images and annotations over Soldier Radio Waveform (SRW) and WiFi MANETs in fully distributed manner. While the results obtained constitute a very preliminary evaluation of serverless group communication, the field test environment was very useful in highlighting critical design points (e.g., on-the-move dynamics) where enhancements of the protocol are needed. C1 [Spiker, Carrie; Santiago, Rodolfo; Goff, Thomas; Danilov, Claudiu; Kim, Jae H.] Boeing Res & Technol, Huntington Beach, CA USA. [Adamson, Brian] Naval Res Lab, Washington, DC 20375 USA. [Shur, David; Manousakis, Kyriakos] Appl Commun Sci, Basking Ridge, NJ USA. RP Spiker, C (reprint author), Boeing Res & Technol, Huntington Beach, CA USA. EM carrie.v.spiker@boeing.com; rodolfo.a.santiago@boeing.com; thomas.goff@boeing.com; claudiu.b.danilov@boeing.com; jae.h.kim@boeing.com; brain.adamson@nrl.navy.mil; dshur@appcomsci.com; kmanousakis@appcomsci.com NR 21 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2155-7578 BN 978-1-5090-0073-9 J9 IEEE MILIT COMMUN C PY 2015 BP 127 EP 132 PG 6 WC Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA BE3YS UT WOS:000371395200022 ER PT S AU Li, D Ellinger, J Liu, ZQ Wu, ZQ Zhang, ZP AF Li, Dong Ellinger, John Liu, Zhiqiang Wu, Zhiqiang Zhang, Zhiping GP IEEE TI Mixed Signal Detection and Symbol Rate Estimation based on Spectral Coherent Features SO 2015 IEEE MILITARY COMMUNICATIONS CONFERENCE (MILCOM 2015) SE IEEE Military Communications Conference LA English DT Proceedings Paper CT 34th IEEE Annual Military Communications Conference (MILCOM) on Leveraging Technology - The Joint Imperative CY OCT 26-28, 2015 CL Tampa, FL SP IEEE ID SD-SMSE FRAMEWORK AB Signal detection and RF parameter estimation have received great interest in recent years due to the need for spectrum sensing in rapidly growing cognitive radio and cyber security research. In most conventional signal detection and RF parameter estimation work, the target signal is often assumed to be a single primary user signal without overlap in spectrum with other signals. However, in a spectrally congested environment or a spectrally contested environment which often occurs in cyber security applications, multiple signals are often mixed together with significant overlap in spectrum. In our previous work, we have demonstrated the feasibility of using a second order spectrum correlation function (SCF) cyclostationary feature to perform mixed signal detection, but the detection was confined to BPSK modulation. In this paper, we extend our work to QPSK modulation by using a robust algorithm to detect mixed signals and estimate their symbol rate via spectral coherence function (SOF) features. We also evaluate the detection and estimation performance of the proposed algorithm in various channel conditions and signal mixture scenarios. Simulation results confirm the effectiveness of the proposed scheme. C1 [Li, Dong; Wu, Zhiqiang; Zhang, Zhiping] Wright State Univ, Dept Elect Engn, Dayton, OH 45435 USA. [Ellinger, John] Air Force Res Lab, Sensors Directorate, Washington, DC USA. [Liu, Zhiqiang] Naval Res Lab, Acoust Div, Washington, DC 20375 USA. RP Li, D (reprint author), Wright State Univ, Dept Elect Engn, Dayton, OH 45435 USA. EM Zhang.176@wright.edu NR 16 TC 1 Z9 1 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2155-7578 BN 978-1-5090-0073-9 J9 IEEE MILIT COMMUN C PY 2015 BP 263 EP 268 PG 6 WC Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA BE3YS UT WOS:000371395200045 ER PT S AU Kam, C Kompella, S Ephremides, A AF Kam, Clement Kompella, Sastry Ephremides, Anthony GP IEEE TI Experimental Evaluation of the Age of Information via Emulation SO 2015 IEEE MILITARY COMMUNICATIONS CONFERENCE (MILCOM 2015) SE IEEE Military Communications Conference LA English DT Proceedings Paper CT 34th IEEE Annual Military Communications Conference (MILCOM) on Leveraging Technology - The Joint Imperative CY OCT 26-28, 2015 CL Tampa, FL SP IEEE AB This work focuses on evaluating a new metric for the timeliness of information in a status monitoring system, referred to as the age of information or the status age. Investigation into the age of information metric is fairly recent and has primarily been focused on theoretical analysis, and there has been no evaluation of the metric in a realistic system of networked nodes. We evaluate the age metric in a realistic wireless system using the open source network emulation tools CORE and EMANE. Our goal is to validate theoretical results on age for a single link across a wide range of system parameters. In addition to verifying existing theoretical results, we go further by adding more theoretical results that better model the emulated system than currently offered in the theory. Our results indicate that the theoretical results are indicative of real world behavior, but we also identify the limitations of the theoretical models and the impact on the emulated age. C1 [Kam, Clement; Kompella, Sastry] Naval Res Lab, Div Informat Technol, Washington, DC 20375 USA. [Ephremides, Anthony] Univ Maryland, Elect & Comp Engn Dept, College Pk, MD 20742 USA. RP Kam, C (reprint author), Naval Res Lab, Div Informat Technol, Washington, DC 20375 USA. NR 9 TC 1 Z9 1 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2155-7578 BN 978-1-5090-0073-9 J9 IEEE MILIT COMMUN C PY 2015 BP 1070 EP 1075 PG 6 WC Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA BE3YS UT WOS:000371395200179 ER PT S AU Qi, JJ Sun, K Kang, W AF Qi, Junjian Sun, Kai Kang, Wei GP IEEE TI Optimal PMU Placement for Power System Dynamic State Estimation by Using Empirical Observability Gramian SO 2015 IEEE POWER & ENERGY SOCIETY GENERAL MEETING SE IEEE Power and Energy Society General Meeting PESGM LA English DT Proceedings Paper CT General Meeting of the IEEE-Power-and-Energy-Society CY JUL 26-30, 2015 CL Denver, CO SP IEEE Power & Energy Soc C1 [Qi, Junjian; Sun, Kai] Univ Tennessee, Elect Engn & Comp Sci, Knoxville, TN USA. [Kang, Wei] Naval Postgrad Sch, Appl Math, Monterey, CA USA. RP Qi, JJ (reprint author), Univ Tennessee, Elect Engn & Comp Sci, Knoxville, TN USA. NR 0 TC 0 Z9 0 U1 1 U2 2 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 1944-9925 BN 978-1-4673-8040-9 J9 IEEE POW ENER SOC GE PY 2015 PG 1 WC Energy & Fuels; Engineering, Electrical & Electronic SC Energy & Fuels; Engineering GA BE3YU UT WOS:000371397500140 ER PT S AU Karpenko, M King, JT Ross, IM AF Karpenko, Mark King, Jeffery T. Ross, I. Michael BE Gravseth, IJ TI AGILITOID-BASED DESIGN ANALYSIS OF NEXT GENERATION ATTITUDE CONTROL SYSTEMS SO GUIDANCE, NAVIGATION, AND CONTROL 2015 SE Advances in the Astronautical Sciences LA English DT Proceedings Paper CT 38th Annual AAS Rocky Mountain Section Guidance and Control Conference CY JAN 30-FEB 04, 2015 CL Breckenridge, CO ID FLIGHT; MANEUVERS AB The agility of a rigid body spacecraft can be expressed in terms of a geometric, three-dimensional solid called the agilitoid. Originally developed as a means for explaining the concept of "hidden agility" made visible through the use of optimal control techniques, a modified agilitoid is presented here that is compatible with the conventional eigenaxis maneuver. Parameters of the James Webb Space Telescope are used to demonstrate how the modified agilitoid can be applied to quickly and accurately size attitude control systems for future missions. The new concept is also used to show how a reaction wheel array can be configured to reduce the mass budget in the design of future spacecraft. No modification of flight software is necessary to use the new approach. Only a simple change in the parameters of the maneuver generating logic is needed. C1 [Karpenko, Mark; Ross, I. Michael] Naval Postgrad Sch, Control & Optimizat Labs, 700 Dyer Rd, Monterey, CA 93943 USA. [King, Jeffery T.] US Naval Acad, Dept Aerosp Engn, Annapolis, MD 21402 USA. RP Karpenko, M (reprint author), Naval Postgrad Sch, Control & Optimizat Labs, 700 Dyer Rd, Monterey, CA 93943 USA. EM mkarpenk@nps.edu NR 23 TC 0 Z9 0 U1 1 U2 2 PU UNIVELT INC PI SAN DIEGO PA PO BOX 28130, SAN DIEGO, CA 92128 USA SN 1081-6003 BN 978-0-87703-621-0 J9 ADV ASTRONAUT SCI PY 2015 VL 154 BP 169 EP 184 PG 16 WC Automation & Control Systems; Engineering, Aerospace SC Automation & Control Systems; Engineering GA BE4FR UT WOS:000371649600013 ER PT S AU Hambly, RJ Levy, Y Seagull, A Nissen, ME AF Hambly, Robert J., Jr. Levy, Yair Seagull, Amon Nissen, Mark E. GP IEEE TI Towards Assessing the Willingness of Intelligence Analysts to Contribute to Knowledge Management Systems (KMS) in Highly Classified Environments SO IEEE SOUTHEASTCON 2015 SE IEEE SoutheastCon-Proceedings LA English DT Proceedings Paper CT IEEE Southeast Conference (IEEE SoutheastCon) CY APR 09-12, 2015 CL Fort Lauderdale, FL SP IEEE DE knowledge management; knowledge sharing; collaboration; willingness to share; trust; resistance to sharing AB Since September 11, 2001, the United States Government (USG) has possessed unparalleled capability in terms of dedicated Intelligence and information collection assets supporting the analysts of the Intelligence Community (IC). The USG IC has sponsored, developed, and borne witness to extraordinary advances in technology, techniques, and procedures focused on knowledge harvesting, knowledge sharing, and collaboration. Knowledge, within successful (effective & productive) organizations, exists as a commodity; a commodity that can be created, captured, imparted, shared, and leveraged. This poster will provide an overview of on-going research that addresses the challenge of maintaining strong organizational effectiveness and productivity through the use of Knowledge Management Systems (KMS). The main goal of this proposed study is to empirically assess a model to test the impact of the factors of reward, power, centrality, trust, collaborative environment, resistance to share, ease-of-using KMS, organizational structure, and top management support to inducement, willingness to share, as well as opportunity to contribute knowledge to a KMS on knowledge-sharing in highly classified environments. C1 [Hambly, Robert J., Jr.; Levy, Yair; Seagull, Amon] Nova SE Univ, Grad Sch Comp & Informat Sci, Ft Lauderdale, FL 33314 USA. [Nissen, Mark E.] Naval Postgrad Sch, Grad Sch Operat & Informat Sci, Monterey, CA USA. RP Hambly, RJ (reprint author), Nova SE Univ, Grad Sch Comp & Informat Sci, Ft Lauderdale, FL 33314 USA. EM hambly@nova.edu; levyy@nova.edu; amons@nova.edu; mnissen@nps.edu 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 1091-0050 BN 978-1-4673-7300-5 J9 IEEE SOUTHEASTCON PY 2015 PG 2 WC Computer Science, Theory & Methods; Engineering, Electrical & Electronic SC Computer Science; Engineering GA BE3YR UT WOS:000371393800023 ER PT S AU King, JT Karpenko, M Ross, IM AF King, Jeffery T. Karpenko, Mark Ross, I. Michael BE Furfaro, R Cassotto, S Trask, A Zimmer, S TI RAPID COLLECTION OF LARGE AREAS FOR IMAGING SPACECRAFT SO SPACEFLIGHT MECHANICS 2015, PTS I-III SE Advances in the Astronautical Sciences LA English DT Proceedings Paper CT 25th American-Astronautical-Society/American Institute of Aeronautics and Astronautics Space Flight Mechanics Meeting CY JAN 11-15, 2015 CL Williamsburg, VA SP Amer Astronaut Soc, Space Flight Mech Tech Comm, Amer Inst Aeronaut & Astronaut, Astrodynam Tech Comm ID FLIGHT AB Imaging a large contiguous area of the Earth's surface involves a continuous succession of alternating image collection and maneuvering operations that must be seamlessly stitched together into an operational mission plan. Even though the change in look angle between adjacent scan swaths may be small, the time for maneuvering between scans may be large. This is because the satellite boresight is in motion at the beginning and at the end of each scan operation so it is necessary to reverse the motion of the satellite in addition to re-pointing the boresight in order to begin the next scan. To facilitate rapid collection of large areas, a class of shortest-time, non-rest, maneuvers is developed in this paper to reduce the waste time between scans and improve the overall image collection rate. The maneuvers are solved as a series of multi-point optimal control problems which are complicated by the fact that the boundary conditions on the satellite attitude, rate and momentum state are time varying due to the relative motion between the satellite and the Earth. A set of nonlinear equations describing the kinematics of the boresight line-of-sight during scanning are therefore developed and integrated as part of the optimal control problem formulation. The results show that maneuver times can be reduced by up to 34% leading to an improvement in collection rate of up to 28%. The relationship between the reduction in maneuver time and the resulting improvement in image collection rate is shown to be dependent on the ratio of total maneuver time to total imaging time, creating a lever arm effect which amplifies the improvement in image collection rate as the maneuver time becomes larger in proportion to the imaging time. C1 [King, Jeffery T.] US Naval Acad, Aerosp Engn, Annapolis, MD 21402 USA. [Karpenko, Mark; Ross, I. Michael] Naval Postgrad Sch, Mech & Aerosp Engn, Monterey, CA 93943 USA. RP King, JT (reprint author), US Naval Acad, Aerosp Engn, Annapolis, MD 21402 USA. NR 22 TC 0 Z9 0 U1 0 U2 1 PU UNIVELT INC PI SAN DIEGO PA PO BOX 28130, SAN DIEGO, CA 92128 USA SN 1081-6003 BN 978-0-87703-623-4 J9 ADV ASTRONAUT SCI PY 2015 VL 155 BP 603 EP 621 PN I-III PG 19 WC Engineering, Aerospace SC Engineering GA BE4FK UT WOS:000371647200037 ER PT S AU King, JT Karpenko, M AF King, Jeffery T. Karpenko, Mark BE Furfaro, R Cassotto, S Trask, A Zimmer, S TI ESTIMATION OF OPTIMAL CONTROL BENEFITS USING THE AGILITY ENVELOPE CONCEPT SO SPACEFLIGHT MECHANICS 2015, PTS I-III SE Advances in the Astronautical Sciences LA English DT Proceedings Paper CT 25th American-Astronautical-Society/American Institute of Aeronautics and Astronautics Space Flight Mechanics Meeting CY JAN 11-15, 2015 CL Williamsburg, VA SP Amer Astronaut Soc, Space Flight Mech Tech Comm, Amer Inst Aeronaut & Astronaut, Astrodynam Tech Comm ID RIGID SPACECRAFT; FLIGHT; REORIENTATION; MANEUVERS AB The capability of space-based sensors to collect images is directly related to the agility of the sensor. Increasing the sensor agility, without changing the attitude control hardware, can be accomplished by using optimal control to design shortest-time maneuvers. The performance improvement that can be obtained using optimal control is tied to the specific configuration of the satellite, e.g., mass properties, reaction wheel array geometry, etc. Therefore, it is generally difficult to predict performance without extensive simulation. This paper presents a simple idea for estimating the agility enhancement that can be obtained using optimal control without the need to solve the optimal control problem. The approach is based on the concept of the agility envelope, which expresses the capability of a spacecraft in terms of a three-dimensional agility volume. C1 [King, Jeffery T.] US Naval Acad, Aerosp Engn, Annapolis, MD 21402 USA. [Karpenko, Mark] Naval Postgrad Sch, Mech & Aerosp Engn, Monterey, CA 93943 USA. RP King, JT (reprint author), US Naval Acad, Aerosp Engn, Annapolis, MD 21402 USA. NR 25 TC 0 Z9 0 U1 0 U2 1 PU UNIVELT INC PI SAN DIEGO PA PO BOX 28130, SAN DIEGO, CA 92128 USA SN 1081-6003 BN 978-0-87703-623-4 J9 ADV ASTRONAUT SCI PY 2015 VL 155 BP 1205 EP 1222 PN I-III PG 18 WC Engineering, Aerospace SC Engineering GA BE4FK UT WOS:000371647200072 ER PT S AU Healy, L Reich, K Binz, C AF Healy, Liam Reich, Kevin Binz, Christopher BE Furfaro, R Cassotto, S Trask, A Zimmer, S TI DENSITY OF THE BUILT ORBITAL ENVIRONMENT FROM AN OBJECT CATALOG SO SPACEFLIGHT MECHANICS 2015, PTS I-III SE Advances in the Astronautical Sciences LA English DT Proceedings Paper CT 25th American-Astronautical-Society/American Institute of Aeronautics and Astronautics Space Flight Mechanics Meeting CY JAN 11-15, 2015 CL Williamsburg, VA SP Amer Astronaut Soc, Space Flight Mech Tech Comm, Amer Inst Aeronaut & Astronaut, Astrodynam Tech Comm AB A density function in orbital element space provides a prior for a Bayesian computation of probability density. The orbital catalog can provide this initial density function. A histogram with wide bins is poorly resolved, and gives little information; one with narrow bins has either zero or one object in each bin, and also gives little information. Kernel density estimation methods have been developed and applied in a variety of fields and are presented here applied to orbital density estimation to resolve this conundrum. Clustering techniques and knowledge of orbital purpose to determine orbital neighborhoods are used to help refine these estimates. C1 [Healy, Liam; Reich, Kevin; Binz, Christopher] Naval Res Lab, Code 8233, Washington, DC 20375 USA. RP Healy, L (reprint author), Naval Res Lab, Code 8233, Washington, DC 20375 USA. NR 12 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 978-0-87703-623-4 J9 ADV ASTRONAUT SCI PY 2015 VL 155 BP 1511 EP 1530 PN I-III PG 20 WC Engineering, Aerospace SC Engineering GA BE4FK UT WOS:000371647200090 ER PT S AU Binz, CR Healy, LM AF Binz, Christopher R. Healy, Liam M. BE Furfaro, R Cassotto, S Trask, A Zimmer, S TI CENTROID DYNAMICS FOR GROUP OBJECT TRACKING SO SPACEFLIGHT MECHANICS 2015, PTS I-III SE Advances in the Astronautical Sciences LA English DT Proceedings Paper CT 25th American-Astronautical-Society/American Institute of Aeronautics and Astronautics Space Flight Mechanics Meeting CY JAN 11-15, 2015 CL Williamsburg, VA SP Amer Astronaut Soc, Space Flight Mech Tech Comm, Amer Inst Aeronaut & Astronaut, Astrodynam Tech Comm AB Immediately following a scenario like a CubeSat deployment, the presence of multiple objects in close proximity makes the observation assignment problem and thus individual object tracking difficult. One proposed method for mitigating this is to combine the observations in measurement space, and use this to update the "centroid state" of the collection of objects. A consequence of this process is that there is no physical reason that the centroid should itself behave as an orbiting object. This paper presents the first steps towards this type of tracking, describing the motion of the centroid as projected in measurement space. C1 [Binz, Christopher R.; Healy, Liam M.] Naval Res Lab, Code 8233, Washington, DC 20375 USA. RP Binz, CR (reprint author), Naval Res Lab, Code 8233, Washington, DC 20375 USA. NR 13 TC 0 Z9 0 U1 0 U2 0 PU UNIVELT INC PI SAN DIEGO PA PO BOX 28130, SAN DIEGO, CA 92128 USA SN 1081-6003 BN 978-0-87703-623-4 J9 ADV ASTRONAUT SCI PY 2015 VL 155 BP 2761 EP 2777 PN I-III PG 17 WC Engineering, Aerospace SC Engineering GA BE4FK UT WOS:000371647200168 ER PT S AU Karpenko, M Proulx, RJ AF Karpenko, Mark Proulx, Ronald J. BE Furfaro, R Cassotto, S Trask, A Zimmer, S TI EXPERIMENTAL IMPLEMENTATION OF RIEMANN-STIELTJES OPTIMAL CONTROL FOR AGILE CMG MANEUVERING SO SPACEFLIGHT MECHANICS 2015, PTS I-III SE Advances in the Astronautical Sciences LA English DT Proceedings Paper CT 25th American-Astronautical-Society/American Institute of Aeronautics and Astronautics Space Flight Mechanics Meeting CY JAN 11-15, 2015 CL Williamsburg, VA SP Amer Astronaut Soc, Space Flight Mech Tech Comm, Amer Inst Aeronaut & Astronaut, Astrodynam Tech Comm ID FLIGHT AB Standard optimal control solutions provide open-loop controls based on a nominal model of the plant. When implemented in the closed-loop, unpredictable interactions between the nominal open-loop controls and the feedback law can cause the system to fail to perform as expected. Riemann-Stieltjes optimal control is a new concept that allows the effects of such uncertainties to be addressed in an optimal control framework. This paper details the application of Riemann-Stieltjes optimal control for agile maneuvering of a CMG imaging satellite. Experimental implementation on Honeywell's momentum control system testbed demonstrates the efficacy of the approach. C1 [Karpenko, Mark] US Navy, Postgrad Sch, Dept Mech & Aerosp Engn, Monterey, CA 93943 USA. [Proulx, Ronald J.] US Navy, Postgrad Sch, Space Syst Acad Grp, Monterey, CA 93943 USA. RP Karpenko, M (reprint author), US Navy, Postgrad Sch, Dept Mech & Aerosp Engn, Monterey, CA 93943 USA. EM mkarpenk@nps.edu NR 20 TC 0 Z9 0 U1 0 U2 1 PU UNIVELT INC PI SAN DIEGO PA PO BOX 28130, SAN DIEGO, CA 92128 USA SN 1081-6003 BN 978-0-87703-623-4 J9 ADV ASTRONAUT SCI PY 2015 VL 155 BP 3209 EP 3224 PN I-III PG 16 WC Engineering, Aerospace SC Engineering GA BE4FK UT WOS:000371647200192 ER PT J AU McGregor, D Harder, B Brutzman, D AF McGregor, Don Harder, Byron Brutzman, Don BE Spencer, SN TI X3D Distributed Interactive Simulation (DIS) Implementation and Run-Time Discovery of New Entities using X3DOM SO WEB3D 2015 LA English DT Proceedings Paper CT 20th International ACM Symposium on 3D Web Technologies (Web3D) CY JUN 18-21, 2015 CL Heraklion, GREECE SP ACM SIGGRAPH, Eurograph Assoc, Web3D Consortium, ACM DE X3D; JavaScript; DIS; X3DOM; Websockets; NVEs AB New capabilities in web browser JavaScript implementations including networking, improved graphics performance, and improved speed allow the implementation of Networked Virtual Environments (NVEs) inside the web browser. An NVE can be written in JavaScript, which enables deployment in the enterprise entirely from a web server without the use of browser plugins. We discuss one implementation of this idea using X3DOM, an opensource implementation of the X3D standard written in JavaScript. The Open-DIS library for the IEEE Distributed Interactive Simulation (DIS) network protocol is used to create a partial implementation of the X3D standard's DIS profile. Mechanisms for using the X3D DIS Profile DISEntityTypeMapping and DISEntityManager to enable run-time discovery and launching of new entities are discussed. Measurements of the capabilities and performance aspects of Websockets for network transport demonstrate excellent results. C1 [McGregor, Don; Harder, Byron; Brutzman, Don] Naval Postgrad Sch, Virtual Environm Simulat MOVES Inst, Modeling, Monterey, CA 93933 USA. RP McGregor, D (reprint author), Naval Postgrad Sch, Virtual Environm Simulat MOVES Inst, Modeling, Monterey, CA 93933 USA. EM mcgredo@nps.edu; brharder1@nps.edu; brutzman@nps.edu NR 18 TC 0 Z9 0 U1 0 U2 1 PU ASSOC COMPUTING MACHINERY PI NEW YORK PA 1515 BROADWAY, NEW YORK, NY 10036-9998 USA BN 978-1-4503-3647-5 PY 2015 BP 25 EP 30 DI 10.1145/2775292.2775318 PG 6 WC Computer Science, Information Systems; Computer Science, Software Engineering SC Computer Science GA BE4JL UT WOS:000371789700003 ER PT J AU Cheng, YP Brutzman, D AF Cheng, YuanPin Brutzman, Don BE Spencer, SN TI Matlab and Simulink Creation and Animation of X3D in Web-Based Simulation SO WEB3D 2015 LA English DT Proceedings Paper CT 20th International ACM Symposium on 3D Web Technologies (Web3D) CY JUN 18-21, 2015 CL Heraklion, GREECE SP ACM SIGGRAPH, Eurograph Assoc, Web3D Consortium, ACM DE X3D; VRML; Matlab; Simulink; real-time physics AB Matlab is a powerful tool to compute high-fidelity engineering model and plot the result in figures. Simulink implements Matlab. m source code into block diagrams and flow charts to execute the simulation. This project demonstrates how physics equations implemented in Simulink can animate X3D or VRML models, along with the methods to convert Matlab. fig format into an X3D object so we can apply it into Web-based animations. C1 [Cheng, YuanPin; Brutzman, Don] Naval Postgrad Sch, MOVES Inst, Monterey, CA USA. RP Cheng, YP (reprint author), Naval Postgrad Sch, MOVES Inst, Monterey, CA USA. EM ycheng@nps.edu; brutzman@nps.edu NR 2 TC 0 Z9 0 U1 1 U2 2 PU ASSOC COMPUTING MACHINERY PI NEW YORK PA 1515 BROADWAY, NEW YORK, NY 10036-9998 USA BN 978-1-4503-3647-5 PY 2015 BP 169 EP 169 DI 10.1145/2775292.2778306 PG 1 WC Computer Science, Information Systems; Computer Science, Software Engineering SC Computer Science GA BE4JL UT WOS:000371789700028 ER PT S AU Bowman, SR Brown, CG Hite, JK Freitas, JA Kub, FJ Eddy, CR Vurgaftman, I Meyer, JR Leach, JH Udwary, K AF Bowman, Steven R. Brown, Christopher G. Hite, Jennifer K. Freitas, Jaime A. Kub, Francis J. Eddy, Charles R., Jr. Vurgaftman, Igor Meyer, Jerry R. Leach, Jacob H. Udwary, Kevin GP IEEE TI Frequency Conversion in Periodically Oriented Gallium Nitride SO 2015 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO) SE Conference on Lasers and Electro-Optics LA English DT Proceedings Paper CT Conference on Lasers and Electro-Optics (CLEO) CY MAY 10-15, 2015 CL San Jose, CA AB Broadband transparency, high thermal conductivity, and strong nonlinearity make gallium nitride a promising material for high power frequency conversion. We have fabricated and tested periodically oriented gallium nitride (PO-GaN) devices for quasi-phase matched (QPM) frequency conversion. C1 [Bowman, Steven R.; Hite, Jennifer K.; Freitas, Jaime A.; Kub, Francis J.; Eddy, Charles R., Jr.; Vurgaftman, Igor; Meyer, Jerry R.] US Naval Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA. [Brown, Christopher G.] Univ Res Fdn, Greenbelt, MD 20770 USA. [Leach, Jacob H.; Udwary, Kevin] Kyma Technol Inc, Raleigh, NC 27617 USA. RP Bowman, SR (reprint author), US Naval Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA. EM steven.bowman@nrl.navy.mil 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 2160-9020 BN 978-1-55752-968-8 J9 CONF LASER ELECTR PY 2015 PG 2 WC Engineering, Electrical & Electronic; Optics; Physics, Applied SC Engineering; Optics; Physics GA BE3EW UT WOS:000370627102163 ER PT S AU Chen, RZ Yan, AD Zaghloul, M Lu, GY Bunger, AP Miller, GA Cranch, GA Chen, KP AF Chen, Rongzhang Yan, Aidong Zaghloul, Mohamed Lu, Guanyi Bunger, Andrew P. Miller, Gary A. Cranch, Geoffrey A. Chen, Kevin P. GP IEEE TI Monitoring of Hydraulic Fracturing Using DFB Fiber Laser Acoustic Sensors SO 2015 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO) SE Conference on Lasers and Electro-Optics LA English DT Proceedings Paper CT Conference on Lasers and Electro-Optics (CLEO) CY MAY 10-15, 2015 CL San Jose, CA AB This paper studies acoustic emission from hydraulic fracturing using DFB fiber laser sensors interrogated by a 3x3 coupler. This study shows that fiber lasers are useful tools to monitor fracturing processes for oil gas extraction. C1 [Chen, Rongzhang; Yan, Aidong; Zaghloul, Mohamed; Chen, Kevin P.] Univ Pittsburgh, Dept Elect & Comp Engn, Pittsburgh, PA 15261 USA. [Lu, Guanyi; Bunger, Andrew P.] Univ Pittsburgh, Dept Civil & Environm Engn, Pittsburgh, PA 15261 USA. [Bunger, Andrew P.] Univ Pittsburgh, Dept Chem & Petr Engn, Pittsburgh, PA 15261 USA. [Miller, Gary A.; Cranch, Geoffrey A.] Naval Res Lab, Washington, DC 20375 USA. RP Chen, KP (reprint author), Univ Pittsburgh, Dept Elect & Comp Engn, Pittsburgh, PA 15261 USA. EM kchen@engr.pitt.edu 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 2160-9020 BN 978-1-55752-968-8 J9 CONF LASER ELECTR PY 2015 PG 2 WC Engineering, Electrical & Electronic; Optics; Physics, Applied SC Engineering; Optics; Physics GA BE3EW UT WOS:000370627102269 ER PT S AU Coslovich, G Smith, RP Shi, SF Buss, JH Robinson, JT Wang, F Kaindl, RA AF Coslovich, G. Smith, R. P. Shi, S. -F. Buss, J. H. Robinson, J. T. Wang, F. Kaindl, R. A. GP IEEE TI Ultrabroadband THz Conductivity of Non-equilibrium Dirac Fermions in Graphene SO 2015 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO) SE Conference on Lasers and Electro-Optics LA English DT Proceedings Paper CT Conference on Lasers and Electro-Optics (CLEO) CY MAY 10-15, 2015 CL San Jose, CA AB We employ ultrabroadband THz pulses to expose the high-frequency transport of non-equilibrium Dirac fermions in graphene. Tuning the Fermi level reveals a transient response characteristic of high-energy photo-excited carriers with strongly enhanced interactions. C1 [Coslovich, G.; Smith, R. P.; Shi, S. -F.; Buss, J. H.; Wang, F.; Kaindl, R. A.] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA. [Shi, S. -F.; Wang, F.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Robinson, J. T.] Naval Res Lab, Washington, DC 20375 USA. RP Coslovich, G (reprint author), Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 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 SN 2160-9020 BN 978-1-55752-968-8 J9 CONF LASER ELECTR PY 2015 PG 2 WC Engineering, Electrical & Electronic; Optics; Physics, Applied SC Engineering; Optics; Physics GA BE3EW UT WOS:000370627100430 ER PT S AU Firebaugh, SL Sampaolo, A Patimisco, P Spagnolo, V Tittel, FK AF Firebaugh, Samara L. Sampaolo, Angelo Patimisco, Pietro Spagnolo, Vincenzo Tittel, Frank K. GP IEEE TI Modeling the dependence of fork geometry on the performance of quartz enhanced photoacoustic spectroscopic sensors SO 2015 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO) SE Conference on Lasers and Electro-Optics LA English DT Proceedings Paper CT Conference on Lasers and Electro-Optics (CLEO) CY MAY 10-15, 2015 CL San Jose, CA AB A finite element model for Quartz Enhanced Photoacoustic Spectroscopy (QEPAS) was developed and applied to study the dependence of performance on sensor dimensions. This model can be a design tool for optimizing tuning fork dimensions. C1 [Firebaugh, Samara L.] US Naval Acad, Dept Elect & Comp Engn, Annapolis, MD 21402 USA. [Sampaolo, Angelo; Patimisco, Pietro; Spagnolo, Vincenzo] Univ Bari, Dipartimento Interateneo Fis, Bari, Italy. [Sampaolo, Angelo; Patimisco, Pietro; Spagnolo, Vincenzo] Politecn Bari, Bari, Italy. [Sampaolo, Angelo; Patimisco, Pietro; Spagnolo, Vincenzo; Tittel, Frank K.] Rice Univ, Dept Elect & Comp Engn, POB 1892, Houston, TX 77251 USA. RP Firebaugh, SL (reprint author), US Naval Acad, Dept Elect & Comp Engn, Annapolis, MD 21402 USA. EM firebaug@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 SN 2160-9020 BN 978-1-55752-968-8 J9 CONF LASER ELECTR PY 2015 PG 2 WC Engineering, Electrical & Electronic; Optics; Physics, Applied SC Engineering; Optics; Physics GA BE3EW UT WOS:000370627100083 ER PT S AU Hu, Y Menyuk, CR Hutchinson, M Urick, VJ Williams, KJ AF Hu, Yue Menyuk, Curtis R. Hutchinson, Meredith Urick, Vincent J. Williams, Keith J. GP IEEE TI Impact of the Coulomb Interaction on the Franz-Keldysh Effect in a High-Current Photodetector SO 2015 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO) SE Conference on Lasers and Electro-Optics LA English DT Proceedings Paper CT Conference on Lasers and Electro-Optics (CLEO) CY MAY 10-15, 2015 CL San Jose, CA ID ABSORPTION AB The Franz-Keldysh effect causes semiconductor absorption to oscillate as a function of wavelength. We include this effect in calculating the nonlinear response of a high-current photodectector and obtain excellent agreement with experiments. (C) 2014 Optical Society of America C1 [Hu, Yue; Menyuk, Curtis R.] Univ Maryland Baltimore Cty, Baltimore, MD 21250 USA. [Hutchinson, Meredith; Urick, Vincent J.; Williams, Keith J.] Naval Res Lab, Photon Technol Branch, Washington, DC 20375 USA. RP Hu, Y (reprint author), Univ Maryland Baltimore Cty, Baltimore, MD 21250 USA. EM yuehu1@umbc.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 2160-9020 BN 978-1-55752-968-8 J9 CONF LASER ELECTR PY 2015 PG 2 WC Engineering, Electrical & Electronic; Optics; Physics, Applied SC Engineering; Optics; Physics GA BE3EW UT WOS:000370627102154 ER PT S AU Meyer, JR Canedy, CL Kim, CS Kim, M Bewley, WW Merritt, CD Vurgaftman, I AF Meyer, J. R. Canedy, C. L. Kim, C. S. Kim, M. Bewley, W. W. Merritt, C. D. Vurgaftman, I. GP IEEE TI High-Brightness Interband Cascade Lasers SO 2015 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO) SE Conference on Lasers and Electro-Optics LA English DT Proceedings Paper CT Conference on Lasers and Electro-Optics (CLEO) CY MAY 10-15, 2015 CL San Jose, CA AB Mid-IR interband cascade lasers will be reviewed. Advantages include 3-6 mu m spectral coverage, wallplug efficiency up to 18% when operated in cw mode at ambient temperature, and ultra-low threshold drive power. C1 [Meyer, J. R.; Canedy, C. L.; Kim, C. S.; Bewley, W. W.; Merritt, C. D.; Vurgaftman, I.] Naval Res Lab, Code 5613, Washington, DC 20375 USA. [Kim, M.] Sotera Def Solut Inc, Crofton, MD 21114 USA. RP Meyer, JR (reprint author), Naval Res Lab, Code 5613, Washington, DC 20375 USA. EM mwir_laser@nrl.navy.mil NR 11 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2160-9020 BN 978-1-55752-968-8 J9 CONF LASER ELECTR PY 2015 PG 2 WC Engineering, Electrical & Electronic; Optics; Physics, Applied SC Engineering; Optics; Physics GA BE3EW UT WOS:000370627102329 ER PT S AU Pruessner, MW Park, D Stievater, TH Kozak, DA Rabinovich, WS AF Pruessner, M. W. Park, D. Stievater, T. H. Kozak, D. A. Rabinovich, W. S. GP IEEE TI An Opto-Electro-Mechanical Phase Shifter SO 2015 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO) SE Conference on Lasers and Electro-Optics LA English DT Proceedings Paper CT Conference on Lasers and Electro-Optics (CLEO) CY MAY 10-15, 2015 CL San Jose, CA AB We demonstrate an opto-electro-mechanical phase shifter. A suspended microbridge is electrostatically actuated to strongly-interact with a weakly-confined waveguide mode. The resulting effective index tuning substantially exceeds that achievable with thermo-optic and electro-optic approaches. C1 [Pruessner, M. W.; Park, D.; Stievater, T. H.; Kozak, D. A.; Rabinovich, W. S.] Naval Res Lab, Washington, DC 20375 USA. RP Pruessner, MW (reprint author), Naval Res Lab, Washington, DC 20375 USA. NR 5 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2160-9020 BN 978-1-55752-968-8 J9 CONF LASER ELECTR PY 2015 PG 2 WC Engineering, Electrical & Electronic; Optics; Physics, Applied SC Engineering; Optics; Physics GA BE3EW UT WOS:000370627102275 ER PT S AU Rodriguez-Seda, EJ AF Rodriguez-Seda, Erick J. GP IEEE TI Self-Triggered Collision Avoidance Control for Multi-Vehicle Systems SO 2015 IEEE INTERNATIONAL CONFERENCE ON ROBOTICS AND AUTOMATION (ICRA) SE IEEE International Conference on Robotics and Automation ICRA LA English DT Proceedings Paper CT IEEE International Conference on Robotics and Automation (ICRA) CY MAY 26-30, 2015 CL Seattle, WA SP IEEE ID MULTIAGENT SYSTEMS; NETWORKS AB The implementation of collision detection mechanisms on-board of unmanned vehicles typically relies on digital platforms and shared communication networks. The discrete nature of these technologies does not only limit the frequency at which nearby obstacles and other vehicles are detected, but it also raises the demand for a better allocation of the vehicle's computational and communication resources. For instance, it is natural and convenient to adapt the frequency at which other vehicles are observed based on their distance and collision risk, a notion that relates to topics in minimum attention control and self-triggered control. In this paper, we report on a cooperative, decentralized self-triggered avoidance control law for an arbitrary large group of unmanned vehicles that reduces the attention and sampling frequency of other vehicles' position. The proposed control strategy guarantees the safe coordination of all vehicles at all times while reducing the sampling frequency of other vehicles' position based on their last available sample. We show that the sampling intervals are positive and lower bounded, which is critical for digital implementation. A simulation example is used to illustrate the performance of the avoidance control strategy. C1 [Rodriguez-Seda, Erick J.] US Naval Acad, Dept Weap & Syst Engn, Annapolis, MD 21402 USA. RP Rodriguez-Seda, EJ (reprint author), US Naval Acad, Dept Weap & Syst Engn, Annapolis, MD 21402 USA. EM rodrigue@usna.edu NR 25 TC 0 Z9 0 U1 1 U2 2 PU IEEE COMPUTER SOC PI LOS ALAMITOS PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1264 USA SN 1050-4729 BN 978-1-4799-6923-4 J9 IEEE INT CONF ROBOT PY 2015 BP 461 EP 466 PG 6 WC Automation & Control Systems; Computer Science, Artificial Intelligence; Engineering, Electrical & Electronic; Robotics SC Automation & Control Systems; Computer Science; Engineering; Robotics GA BE3MR UT WOS:000370974900066 ER PT S AU Kuhlman, MJ Hays, J Sofge, D Gupta, SK AF Kuhlman, Michael J. Hays, Joe Sofge, Donald Gupta, Satyandra K. GP IEEE TI Stabilizing Task-based Omnidirectional Quadruped Locomotion with Virtual Model Control SO 2015 IEEE INTERNATIONAL CONFERENCE ON ROBOTICS AND AUTOMATION (ICRA) SE IEEE International Conference on Robotics and Automation ICRA LA English DT Proceedings Paper CT IEEE International Conference on Robotics and Automation (ICRA) CY MAY 26-30, 2015 CL Seattle, WA SP IEEE ID PATTERN GENERATORS; ROBOT AB Quadruped locomotion offers significant advantages over wheeled locomotion for small mobile robots operating in challenging terrain. Central pattern generators (CPGs), as found in the neural circuitry of many animals, may be used to generate joint trajectories for quadruped robots. However, basic CPG-based trajectories do not explicitly consider ground contact constraints, a particular concern during turning maneuvers when foot slip is most likely to occur. An alternative approach proposed here is to use task-based CPGs such that ground contact constraints are enforced and foot velocities are explicitly controlled, resulting in stable omnidirectional locomotion. Further, incorporating Virtual Model Control with the task-based CPG trajectories improves the stability of the quadruped in hardware experiments. C1 [Kuhlman, Michael J.; Gupta, Satyandra K.] Univ Maryland, Dept Mech Engn, College Pk, MD 20742 USA. [Kuhlman, Michael J.; Gupta, Satyandra K.] Univ Maryland, Syst Res Inst, College Pk, MD 20742 USA. [Hays, Joe] Naval Res Lab, Spacecraft Engn Dept, Washington, DC 20375 USA. [Sofge, Donald] Naval Res Lab, Navy Ctr Appl Res Artificial Intelligence, Washington, DC 20375 USA. RP Kuhlman, MJ (reprint author), Univ Maryland, Dept Mech Engn, College Pk, MD 20742 USA. EM mkuhlman@umd.edu; joe.hays@nrl.navy.mil; donald.sofge@nrl.navy.mil; skgupta@umd.edu NR 17 TC 0 Z9 1 U1 1 U2 1 PU IEEE COMPUTER SOC PI LOS ALAMITOS PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1264 USA SN 1050-4729 BN 978-1-4799-6923-4 J9 IEEE INT CONF ROBOT PY 2015 BP 5171 EP 5176 PG 6 WC Automation & Control Systems; Computer Science, Artificial Intelligence; Engineering, Electrical & Electronic; Robotics SC Automation & Control Systems; Computer Science; Engineering; Robotics GA BE3MR UT WOS:000370974905016 ER PT S AU Charipar, KM Charipar, NA Pique, A AF Charipar, K. M. Charipar, N. A. Pique, A. GP IEEE TI Bistable, Multi-color Electrowetting Displays SO 2015 PHOTONICS CONFERENCE (IPC) SE IEEE Photonics Conference LA English DT Proceedings Paper CT IEEE Photonics Conference CY OCT 04-08, 2015 CL Reston, VA SP IEEE AB We have designed, fabricated, and characterized multi-color, bistable electrowetting displays. By using a unique in-plane electrode, it has been shown that these devices remain bistable, without the need for power, on the order of days. C1 [Charipar, K. M.; Charipar, N. A.; Pique, A.] Naval Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA. RP Charipar, KM (reprint author), Naval Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA. EM kristin.charipar@nrl.navy.mil NR 5 TC 0 Z9 0 U1 2 U2 3 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2374-0140 BN 978-1-4799-7465-8 J9 IEEE PHOTON CONF PY 2015 PG 2 WC Engineering, Electrical & Electronic; Optics SC Engineering; Optics GA BE3MN UT WOS:000370968200025 ER PT S AU Charipar, NA Kim, H Mathews, SA Pique, A AF Charipar, N. A. Kim, H. Mathews, S. A. Pique, A. GP IEEE TI Vanadium Dioxide base Picosecond Electromagnetic Pulse Generator SO 2015 PHOTONICS CONFERENCE (IPC) SE IEEE Photonics Conference LA English DT Proceedings Paper CT IEEE Photonics Conference CY OCT 04-08, 2015 CL Reston, VA SP IEEE ID TRANSITION AB We investigate the use of thin film VO2 as a fast-switching material for use in photoconductive emitters. These emitters rely on the semiconductor-metal transition in VO2 to generate ultrafast electrical pulses. C1 [Charipar, N. A.; Kim, H.; Mathews, S. A.; Pique, A.] Naval Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA. RP Charipar, NA (reprint author), Naval Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA. EM nicholas.charipar@nrl.navy.mil NR 4 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2374-0140 BN 978-1-4799-7465-8 J9 IEEE PHOTON CONF PY 2015 PG 2 WC Engineering, Electrical & Electronic; Optics SC Engineering; Optics GA BE3MN UT WOS:000370968200058 ER PT S AU Dannenberg, R Li, SH Valiance, R Beranek, M Peterson, N AF Dannenberg, Rand Li, Shuhe Valiance, Ryan Beranek, Mark Peterson, Nicholas GP IEEE TI SINGLE-MODE PERFORMANCE OF STAMPED METALLIC FIBER-OPTIC TURNING MIRROR ARRAYS FOR WDM LAN AND RF-OVER-FIBER APPLICATIONS SO 2015 PHOTONICS CONFERENCE (IPC) SE IEEE Photonics Conference LA English DT Proceedings Paper CT IEEE Photonics Conference CY OCT 04-08, 2015 CL Reston, VA SP IEEE C1 [Dannenberg, Rand; Li, Shuhe; Valiance, Ryan] nanoPrecis Prod nPP Inc, El Segundo, CA USA. [Beranek, Mark; Peterson, Nicholas] Naval Air Syst Command, Patuxent River, MA USA. RP Dannenberg, R (reprint author), nanoPrecis Prod nPP Inc, El Segundo, CA USA. 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 2374-0140 BN 978-1-4799-7465-8 J9 IEEE PHOTON CONF PY 2015 PG 2 WC Engineering, Electrical & Electronic; Optics SC Engineering; Optics GA BE3MN UT WOS:000370968200221 ER PT S AU Hu, Y Carruthers, TF Menyuk, CR Hutchinson, M Urick, VJ Williams, KJ AF Hu, Yue Carruthers, Thomas F. Menyuk, Curtis R. Hutchinson, Meredith Urick, Vincent J. Williams, Keith J. GP IEEE TI Modeling nonlinearity in a modified uni-traveling-carrier (MUTe) photodetector SO 2015 PHOTONICS CONFERENCE (IPC) SE IEEE Photonics Conference LA English DT Proceedings Paper CT IEEE Photonics Conference CY OCT 04-08, 2015 CL Reston, VA SP IEEE ID PHOTODIODE AB We study the nonlinearity in a modified uni-traveling-carrier (MUTC) photodetector with a drift-diffusion model. We show that the Franz-Keldysh effect has a strong effect on the third-order intermodulation distortion (IMD3). C1 [Hu, Yue; Carruthers, Thomas F.; Menyuk, Curtis R.] Univ Maryland Baltimore Cty, Dept Comp Sci & Elect Engn, Baltimore, MD 21250 USA. [Hutchinson, Meredith; Urick, Vincent J.; Williams, Keith J.] Naval Res Lab, Photon Technol Branch, Washington, DC 20375 USA. RP Hu, Y (reprint author), Univ Maryland Baltimore Cty, Dept Comp Sci & Elect Engn, Baltimore, MD 21250 USA. EM yuehu1@umbc.edu NR 10 TC 0 Z9 0 U1 2 U2 3 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2374-0140 BN 978-1-4799-7465-8 J9 IEEE PHOTON CONF PY 2015 PG 2 WC Engineering, Electrical & Electronic; Optics SC Engineering; Optics GA BE3MN UT WOS:000370968200055 ER PT S AU Hutchinson, MN Urick, VJ Frigo, NJ AF Hutchinson, Meredith N. Urick, Vincent J. Frigo, Nicholas J. GP IEEE TI Polarization Modulation Techniques for Intensity Modulated Links SO 2015 PHOTONICS CONFERENCE (IPC) SE IEEE Photonics Conference LA English DT Proceedings Paper CT IEEE Photonics Conference CY OCT 04-08, 2015 CL Reston, VA SP IEEE ID PHOTONIC LINKS AB The use of a polarization modulator for intensity modulation is detailed. Issues encountered are discussed such as the state of polarization drift over time for various fiber lengths and the nonlinear effects of polarization dependent loss on link fidelity. C1 [Hutchinson, Meredith N.; Urick, Vincent J.; Frigo, Nicholas J.] US Naval Res Lab, Washington, DC USA. RP Hutchinson, MN (reprint author), US Naval Res Lab, Washington, DC USA. NR 7 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2374-0140 BN 978-1-4799-7465-8 J9 IEEE PHOTON CONF PY 2015 PG 2 WC Engineering, Electrical & Electronic; Optics SC Engineering; Optics GA BE3MN UT WOS:000370968200067 ER PT S AU McKinney, JD Urick, VJ Diehl, JF Williams, KJ AF McKinney, Jason D. Urick, Vincent J. Diehl, John F. Williams, Keith J. GP IEEE TI Interference Mitigation via the Nonlinear Transfer Function of Angle-modulated Optical Links SO 2015 PHOTONICS CONFERENCE (IPC) SE IEEE Photonics Conference LA English DT Proceedings Paper CT IEEE Photonics Conference CY OCT 04-08, 2015 CL Reston, VA SP IEEE AB We demonstrate a novel interference mitigation technique that exploits the power-dependent transmission of an optical link. Requiring no knowledge of the interferer's frequency or absolute phase, this technique provides >30 dB suppression of wideband signals. C1 [McKinney, Jason D.; Urick, Vincent J.; Diehl, John F.; Williams, Keith J.] US Naval Res Lab, Code 5650,4555 Overlook Ave SIN, Washington, DC 20375 USA. RP McKinney, JD (reprint author), US Naval Res Lab, Code 5650,4555 Overlook Ave SIN, Washington, DC 20375 USA. EM jasoh.mckinney@nrl.navy.mil; vincent.urick@nrl.navy.mil NR 5 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2374-0140 BN 978-1-4799-7465-8 J9 IEEE PHOTON CONF PY 2015 PG 2 WC Engineering, Electrical & Electronic; Optics SC Engineering; Optics GA BE3MN UT WOS:000370968200050 ER PT S AU Tseng, F Gunlycke, D Simsek, E AF Tseng, Frank Gunlycke, Daniel Simsek, Ergun GP IEEE TI Theory and Applications of Strongly Bound Excitons in Layered Transition-Metal Dichalcogenides SO 2015 PHOTONICS CONFERENCE (IPC) SE IEEE Photonics Conference LA English DT Proceedings Paper CT IEEE Photonics Conference CY OCT 04-08, 2015 CL Reston, VA SP IEEE ID MOS2 AB A minimalistic exciton model is developed to describe the excitons in pristine semiconducting crystals. The model accounts for the lattice, spin-orbit, and exchange interactions, and hence describes how excitons interact with electrons and photons. C1 [Tseng, Frank; Gunlycke, Daniel] Naval Res Lab, Washington, DC 20375 USA. [Simsek, Ergun] George Washington Univ, Washington, DC 20052 USA. RP Tseng, F (reprint author), Naval Res Lab, Washington, DC 20375 USA. EM simsek@gwu.edu NR 5 TC 0 Z9 0 U1 1 U2 2 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2374-0140 BN 978-1-4799-7465-8 J9 IEEE PHOTON CONF PY 2015 PG 2 WC Engineering, Electrical & Electronic; Optics SC Engineering; Optics GA BE3MN UT WOS:000370968200087 ER PT S AU Weiblen, RJ Florea, C Menyuk, CR Aggarwal, ID Busse, LE Shaw, LB Sanghera, JS AF Weiblen, R. Joseph Florea, Catalin Menyuk, Curtis R. Aggarwal, Ishwar D. Busse, Lynda E. Shaw, L. Brandon Sanghera, Jasbinder S. GP IEEE TI Ideal Cusp-like Motheye Antireflective Structures for Chalcogenide Optical Fibers SO 2015 PHOTONICS CONFERENCE (IPC) SE IEEE Photonics Conference LA English DT Proceedings Paper CT IEEE Photonics Conference CY OCT 04-08, 2015 CL Reston, VA SP IEEE ID SURFACES AB We design and optimize ideal motheye structures for mid-infrared AS(2)S(3) optical fibers. We show that ideal cusp-like features with a half-ellipsoidal or pyramidal shape can achieve average transmission of 99.9% from 2-5 mu m.. C1 [Weiblen, R. Joseph; Menyuk, Curtis R.] Univ Maryland Baltimore Cty, Baltimore, MD 21250 USA. [Florea, Catalin; Aggarwal, Ishwar D.] Sotera Def Solut, Annapolis Jct, MD 20701 USA. [Busse, Lynda E.; Shaw, L. Brandon; Sanghera, Jasbinder S.] Naval Res Lab, Washington, DC 20375 USA. RP Weiblen, RJ (reprint author), Univ Maryland Baltimore Cty, Baltimore, MD 21250 USA. EM ro2@umbc.edu NR 4 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2374-0140 BN 978-1-4799-7465-8 J9 IEEE PHOTON CONF PY 2015 PG 2 WC Engineering, Electrical & Electronic; Optics SC Engineering; Optics GA BE3MN UT WOS:000370968200157 ER PT J AU Clarke, R Jacob, P Erdogan, O Belemijian, P Raman, S Leroy, MR Neogi, TG Kraft, RP Borca-Tasciuc, DA McDonald, JF AF Clarke, Ryan Jacob, Philip Erdogan, Okan Belemijian, Paul Raman, Srikumar Leroy, Mitchell R. Neogi, Tuhin Guha Kraft, Russell P. Borca-Tasciuc, Diana-Andra McDonald, John F. TI Thermal Modeling of 3-D Stacked DRAM Over SiGe HBT BiCMOS CPU SO IEEE ACCESS LA English DT Article DE Microprocessors; memory; simulation; modeling; Moore's law; 3D IC; thermal management; thermal analysis ID DIAMOND FILMS; CONDUCTIVITY; TECHNOLOGY AB We have previously evaluated the feasibility of a serial code accelerator core with 3-D DRAM stacked on the core operating at high frequencies. While operating at such high frequencies (> 24 GHz), there are concerns with removing heat from the 3-D stack. We propose the use of thin diamond sheets, which have high thermal conductivity, as a heat spreader by bonding it close to the processor core substrate and memory stacks. We show, through thermal modeling using COMSOL finite-element analysis tools, the feasibility of diamond as an effective heat spreader in a processor-memory 3-D stack. C1 [Clarke, Ryan; Raman, Srikumar; Leroy, Mitchell R.; Kraft, Russell P.; McDonald, John F.] Rensselaer Polytech Inst, Ctr Integrated Elect, Troy, NY 12180 USA. [Jacob, Philip] IBM Corp, Thomas J Watson Res Ctr, Yorktown Hts, NY 10598 USA. [Erdogan, Okan] Istanbul Tech Univ, Natl High Performance Ctr Turkey, TR-34469 Istanbul, Turkey. [Belemijian, Paul] Naval Res Lab, Baltimore, MD 21227 USA. [Neogi, Tuhin Guha] GlobalFoundries, Malta, NY 12020 USA. [Borca-Tasciuc, Diana-Andra] Rensselaer Polytech Inst, Dept Mech Aerosp & Nucl Engn, Troy, NY 12180 USA. RP Clarke, R (reprint author), Rensselaer Polytech Inst, Ctr Integrated Elect, Troy, NY 12180 USA. EM clarkr6@rpi.edu FU National Science Foundation Computer Systems Research [1216354]; Defense Advanced Research Projects Agency/High Productivity Computing Systems/IBM [HBCH3039004] FX This work was supported in part by the National Science Foundation Computer Systems Research under Grant 1216354 and in part by the Defense Advanced Research Projects Agency/High Productivity Computing Systems/IBM under Contract HBCH3039004. NR 36 TC 0 Z9 1 U1 1 U2 2 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 2169-3536 J9 IEEE ACCESS JI IEEE Access PY 2015 VL 3 BP 43 EP 54 DI 10.1109/ACCESS.2015.2396474 PG 12 WC Computer Science, Information Systems; Engineering, Electrical & Electronic; Telecommunications SC Computer Science; Engineering; Telecommunications GA DF5JP UT WOS:000371388200002 ER PT J AU Mailloux, LO Morris, JD Grimaila, MR Hodson, DD Jacques, DR Colombi, JM McLaughlin, CV Holes, JA AF Mailloux, Logan O. Morris, Jeffrey D. Grimaila, Michael R. Hodson, Douglas D. Jacques, David R. Colombi, John M. McLaughlin, Colin V. Holes, Jennifer A. TI A Modeling Framework for Studying Quantum Key Distribution System Implementation Nonidealities SO IEEE ACCESS LA English DT Article DE Quantum key distribution; modeling & simulation; system performance; system security ID CRYPTOGRAPHY; POLARIZATION AB Quantum key distribution (QKD) is an innovative technology that exploits the laws of quantum mechanics to generate and distribute unconditionally secure shared key for use in cryptographic applications. However, QKD is a relatively nascent technology where real-world system implementations differ significantly from their ideal theoretical representations. In this paper, we introduce a modeling framework built upon the OMNeT++ discrete event simulation framework to study the impact of implementation nonidealities on QKD system performance and security. Specifically, we demonstrate the capability to study the device imperfections and practical engineering limitations through the modeling and simulation of a polarization-based, prepare and measure BB84 QKD reference architecture. The reference architecture allows users to model and study complex interactions between physical phenomenon and system-level behaviors representative of real-world design and implementation tradeoffs. Our results demonstrate the flexibility of the framework to simulate and evaluate current, future, and notional QKD protocols and components. C1 [Mailloux, Logan O.; Grimaila, Michael R.; Hodson, Douglas D.; Jacques, David R.; Colombi, John M.; Holes, Jennifer A.] Air Force Inst Technol, Wright Patterson AFB, OH 45433 USA. [Morris, Jeffrey D.] Army Cyber Inst, West Point, NY 10996 USA. [McLaughlin, Colin V.] Naval Res Lab, Washington, DC 20375 USA. RP Grimaila, MR (reprint author), Air Force Inst Technol, Wright Patterson AFB, OH 45433 USA. EM Michael.Grimaila@afit.edu FU Laboratory for Telecommunication Sciences [5743400-304-6448] FX This work was supported by the Laboratory for Telecommunication Sciences under Grant 5743400-304-6448. NR 91 TC 3 Z9 3 U1 1 U2 6 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 2169-3536 J9 IEEE ACCESS JI IEEE Access PY 2015 VL 3 BP 110 EP 130 DI 10.1109/ACCESS.2015.2399101 PG 21 WC Computer Science, Information Systems; Engineering, Electrical & Electronic; Telecommunications SC Computer Science; Engineering; Telecommunications GA DF5JP UT WOS:000371388200009 ER PT J AU Galloway, K Sreenath, K Ames, AD Grizzle, JW AF Galloway, Kevin Sreenath, Koushil Ames, Aaron D. Grizzle, Jessy W. TI Torque Saturation in Bipedal Robotic Walking Through Control Lyapunov Function-Based Quadratic Programs SO IEEE ACCESS LA English DT Article DE Quadratic programming; legged locomotion; Lyapunov methods ID HYBRID ZERO DYNAMICS; EFFICIENT; WALKERS; INPUT AB This paper presents a novel method to address the actuator saturation for nonlinear hybrid systems by directly incorporating user-defined input bounds in a controller design. In particular, we consider the application of bipedal walking and show that our method [based on a quadratic programming (QP) implementation of a control Lyapunov function (CLF)-based controller] enables a gradual performance degradation while still continuing to walk under increasingly stringent input bounds. We draw on our previous work, which has demonstrated the effectiveness of the CLF-based controllers for stabilizing periodic gaits for biped walkers. This paper presents a framework, which results in more effective handling of control saturations and provides a means for incorporating a whole family of user-defined constraints into the online computation of a CLF-based controller. This paper concludes with an experimental validation of the main results on the bipedal robot MABEL, demonstrating the usefulness of the QP-based CLF approach for real-time robotic control. C1 [Galloway, Kevin] US Naval Acad, Dept Elect & Comp Engn, Annapolis, MD 21401 USA. [Sreenath, Koushil] Carnegie Mellon Univ, Inst Robot, Dept Mech Engn, Pittsburgh, PA 15213 USA. [Sreenath, Koushil] Carnegie Mellon Univ, Inst Robot, Dept Elect & Comp Engn, Pittsburgh, PA 15213 USA. [Ames, Aaron D.] Texas A&M Univ, Dept Mech Engn, College Stn, TX 77843 USA. [Grizzle, Jessy W.] Univ Michigan, Dept Elect Engn & Comp Sci, Control Syst Lab, Ann Arbor, MI 48109 USA. RP Galloway, K (reprint author), US Naval Acad, Dept Elect & Comp Engn, Annapolis, MD 21401 USA. EM kgallowa@usna.edu FU Defense Advanced Research Projects Agency (DARPA) [W91CRB-11-1-0002]; Carnegie Mellon University, Pittsburgh, PA, USA; National Science Foundation (NSF) [CNS-0953823, CNS-1136104]; Norman Hackerman Advanced Research Program [000512-0184-2009]; National Aeronautics and Space Administration [NNX12AB58G]; DARPA; NSF [ECCS-1231171] FX The work of K. Galloway was supported by the Defense Advanced Research Projects Agency (DARPA) under Contract W91CRB-11-1-0002. The work of K. Sreenath was supported by the Carnegie Mellon University, Pittsburgh, PA, USA. The work of A. D. Ames was supported in part by the National Science Foundation (NSF) under Grant CNS-0953823 and Grant CNS-1136104, in part by the Norman Hackerman Advanced Research Program under Project 000512-0184-2009, and in part by the National Aeronautics and Space Administration under Contract NNX12AB58G. The work of J. W. Grizzle was supported in part by DARPA and in part by NSF under Grant ECCS-1231171. NR 23 TC 5 Z9 5 U1 1 U2 6 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 2169-3536 J9 IEEE ACCESS JI IEEE Access PY 2015 VL 3 BP 323 EP 332 DI 10.1109/ACCESS.2015.2419630 PG 10 WC Computer Science, Information Systems; Engineering, Electrical & Electronic; Telecommunications SC Computer Science; Engineering; Telecommunications GA DF5JP UT WOS:000371388200023 ER PT J AU Romero, RA Shepherd, KD AF Romero, Ric A. Shepherd, Kevin D. TI Friendly Spectrally Shaped Radar Waveform With Legacy Communication Systems for Shared Access and Spectrum Management SO IEEE ACCESS LA English DT Article DE Friendly waveform design; spectrally-shaped waveform; spectrum sharing; electronic warfare; spectrum management; legacy communication systems ID DESIGN; COEXISTENCE; SIGNAL AB In this paper, we investigate a friendly spectrally shaped radar waveform design that can be used in a spectral band being utilized by one or more communication systems. We specifically consider legacy communication systems as opposed to cooperative communication systems to address the ever present problem of legacy technologies. This radar waveform is able to share the spectrum with the existing communication systems such that its detection performance is not compromised while trying to help the legacy systems maintain their own symbol error rates (SERs). We show with various scenarios that the spectrally shaped radar waveform outperforms the traditional wideband pulse waveform in terms of detection performance with the communication signals acting as interference to the radar. Moreover, SERs of the legacy systems employing quaternary phase-shift keying modulation in the presence of the shaped radar waveform (acting as interference) outperform SERs of systems under traditional radar pulse interference. These SERs are very close to theoretical noise-only SERs. C1 [Romero, Ric A.; Shepherd, Kevin D.] Naval Postgrad Sch, Dept Elect & Comp Engn, Monterey, CA 93943 USA. RP Romero, RA (reprint author), Naval Postgrad Sch, Dept Elect & Comp Engn, Monterey, CA 93943 USA. EM rnromero@nps.edu NR 31 TC 6 Z9 6 U1 1 U2 1 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 2169-3536 J9 IEEE ACCESS JI IEEE Access PY 2015 VL 3 BP 1541 EP 1554 DI 10.1109/ACCESS.2015.2473169 PG 14 WC Computer Science, Information Systems; Engineering, Electrical & Electronic; Telecommunications SC Computer Science; Engineering; Telecommunications GA DF5JP UT WOS:000371388200117 ER PT S AU Cambrea, LR Yelton, CA Meylemans, HA AF Cambrea, Lee R. Yelton, Courtney A. Meylemans, Heather A. BE Evans, KR RobertsKirchhoff, ES Benvenuto, MA Lanigan, KC RihanaAbdallah, A TI ZnS-AgInS2 Fluorescent Nanoparticles for Low Level Metal Detection in Water SO TRACE MATERIALS IN AIR, SOIL, AND WATER SE ACS Symposium Series LA English DT Proceedings Paper CT Symposium on Trace Materials in Air, Soil, and Water at the 249th American-Chemical-Society National Meeting CY MAR 22-26, 2015 CL Denver, CO SP Amer Chem Soc, Div Environm Chem Inc ID CAPPED QUANTUM DOTS; LUMINESCENT PROBES; IONS; PHOTOLUMINESCENCE; STRATEGIES; COPPER(II) AB A method for the fluorescence detection of metal ions, polyatomic ions, and other environmental hazards has been developed utilizing ligand functionalized ZnS-AgInS2 fluorescent nanoparticles (ZAIS). Synthesis of the relatively non-toxic, air- and water-stable ZAIS nanoparticles (NPs) has been optimized. Charge transfer between a target molecule and the ZAIS NPs is readily identified by a fluorescence quenching allowing for a fast, simple, visual detection system without the need for expensive analytical instrumentation. Analytes of environmental interest such as Cu2+, Hg2+, and Cr6+ have been detected in concentrations as low as 500 nM (similar to 1 ppm). The specificity for analyte binding in these NPs does not depend on ligand binding interactions specific to that particular metal as is usually seen. In the case of the NPs reported, the ligand is held constant and the selectivity appears to be dependent on the properties of the NP core. C1 [Cambrea, Lee R.; Yelton, Courtney A.; Meylemans, Heather A.] Naval Air Warfare Ctr, Weap Div, 1 Adm Circle, China Lake, CA 93555 USA. RP Meylemans, HA (reprint author), Naval Air Warfare Ctr, Weap Div, 1 Adm Circle, China Lake, CA 93555 USA. EM heather.meylemans@navy.mil NR 16 TC 0 Z9 0 U1 1 U2 1 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 SIXTEENTH ST NW, WASHINGTON, DC 20036 USA SN 0097-6156 BN 978-0-8412-3110-8 J9 ACS SYM SER JI ACS Symp. Ser. PY 2015 VL 1210 BP 195 EP 210 PG 16 WC Environmental Sciences SC Environmental Sciences & Ecology GA BE3SA UT WOS:000371198800010 ER PT J AU Viguier, R Lin, CC Swaminathan, K Vega, A Buyuktosunoglu, A Pankanti, S Bose, P Akbarpour, H Bunyak, F Palaniappan, K Seetharaman, G AF Viguier, R. Lin, C-C. Swaminathan, K. Vega, A. Buyuktosunoglu, A. Pankanti, S. Bose, P. Akbarpour, H. Bunyak, F. Palaniappan, K. Seetharaman, G. GP IEEE TI Resilient Mobile Cognition: Algorithms, Innovations, and Architectures SO 2015 33RD IEEE INTERNATIONAL CONFERENCE ON COMPUTER DESIGN (ICCD) LA English DT Proceedings Paper CT 33rd IEEE International Conference on Computer Design (ICCD) CY OCT 18-21, 2015 CL New York, NY SP IEEE, IEEE Comp Soc, IEEE Circuits & Syst Soc ID VIDEO AB The importance of the internet-of-things (IOT) is now an established reality. With that backdrop, the phenomenal emergence of cameras/sensors mounted on unmanned aerial, ground and marine vehicles (UAVs, UGVs, UMVs) and body worn cameras is a notable new development. The swarms of cameras and real-time computing thereof are at the heart of new technologies like connected cars, drone-based city-wide surveillance and precision agriculture, etc. Smart computer vision algorithms (with or without dynamic learning) that enable object recognition and tracking, supported by baseline video content summarization or 2D/3D image reconstruction of the scanned environment are at the heart of such new applications. In this article, we summarize our recent innovations in this space. We focus primarily on algorithms and architectural design considerations for video summarization systems. C1 [Viguier, R.; Lin, C-C.; Swaminathan, K.; Vega, A.; Buyuktosunoglu, A.; Pankanti, S.; Bose, P.] IBM TJ Watson Res Ctr, Yorktown Hts, NY 10598 USA. [Akbarpour, H.; Bunyak, F.; Palaniappan, K.] Univ Missouri, Dept Comp Sci, Columbia, MO 65211 USA. [Seetharaman, G.] US Naval Res Lab, Adv Comp Concepts, Washington, DC 20375 USA. RP Viguier, R (reprint author), IBM TJ Watson Res Ctr, Yorktown Hts, NY 10598 USA. NR 10 TC 0 Z9 0 U1 4 U2 5 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4673-7166-7 PY 2015 BP 728 EP 731 PG 4 WC Computer Science, Hardware & Architecture; Engineering, Electrical & Electronic SC Computer Science; Engineering GA BE3FL UT WOS:000370645200111 ER PT S AU O'Brien, RT Turner, MC AF O'Brien, Richard T. Turner, Matthew C. GP IEEE TI On the Computation of Dwell Time using the Real Jordan Form SO 2015 AMERICAN CONTROL CONFERENCE (ACC) SE Proceedings of the American Control Conference LA English DT Proceedings Paper CT American Control Conference CY JUL 01-03, 2015 CL Chicago, IL SP Amer Automat Control Council, IFAC, Adaptics Inc, Altair, dSPACE, Eaton Corp, Elsevier, Int Journal Automat & Comp, Journal Franklin Inst, Plexim Inc, Soc Ind & Appl Math, Springer, CRC Press Taylor & Francis Grp Cogent OA, United Technologies Res Ctr, Wiley, Boeing, Ford Motor Co, GE Global Res, Honeywell, MathWorks, Mitsubishi Elect Res Lab, Quanser ID SWITCHED LINEAR-SYSTEMS; STABILITY; STABILIZATION AB This paper addresses the question of guaranteeing stability for a switching system. For this work, a switching system consists of a collection of subsystems with known LTI models and a switching signal that determines which subsystem model governs the system's dynamics at any given time. The switching signal may be the result of an operator's choice or a reaction to external events. Previous work has shown that the switching system will be stable if the switching signal is piecewise constant and dwells on each chosen value for some minimum period of time. Morse and Geromel have proposed methods for estimating an upper bound on the minimum dwell time from the realizations of the LTI subsystems. The new approach proposed in this paper utilizes the real Jordan form and produces a much more accurate estimate than Morse while requiring significantly fewer computations than Geromel. Numerical simulation of a switched system derived from an adaptive vibration attenuation controller illustrates the accuracy and computational efficiency of the proposed algorithm. C1 [O'Brien, Richard T.] US Naval Acad, Dept Weap & Syst Engn, Annapolis, MD 21402 USA. [Turner, Matthew C.] Univ Leicester, Dept Engn, Leicester LE1 7RH, Leics, England. RP O'Brien, RT (reprint author), US Naval Acad, Dept Weap & Syst Engn, Annapolis, MD 21402 USA. EM riobrien@usna.edu; mct6@leicester.ac.uk NR 15 TC 1 Z9 1 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 0743-1619 BN 978-1-4799-8684-2 J9 P AMER CONTR CONF PY 2015 BP 1776 EP 1781 PG 6 WC Automation & Control Systems; Engineering, Electrical & Electronic SC Automation & Control Systems; Engineering GA BE2YC UT WOS:000370259201140 ER PT S AU Li, Y Jha, DK Ray, A Wettergren, TA AF Li, Yue Jha, Devesh K. Ray, Asok Wettergren, Thomas A. GP IEEE TI Feature Level Sensor Fusion for Target Detection in Dynamic Environments SO 2015 AMERICAN CONTROL CONFERENCE (ACC) SE Proceedings of the American Control Conference LA English DT Proceedings Paper CT American Control Conference CY JUL 01-03, 2015 CL Chicago, IL SP Amer Automat Control Council, IFAC, Adaptics Inc, Altair, dSPACE, Eaton Corp, Elsevier, Int Journal Automat & Comp, Journal Franklin Inst, Plexim Inc, Soc Ind & Appl Math, Springer, CRC Press Taylor & Francis Grp Cogent OA, United Technologies Res Ctr, Wiley, Boeing, Ford Motor Co, GE Global Res, Honeywell, MathWorks, Mitsubishi Elect Res Lab, Quanser ID NETWORKS AB This paper addresses the problem of target detection in dynamic environments. A key challenge here is to simultaneously achieve high probabilities of correct detection with low false alarm rates under limited computation and communication resources. To this end, a procedure of binary hypothesis testing is proposed based on agglomerative hierarchical feature clustering. The proposed procedure has been experimentally validated in the laboratory setting on a mobile robot for target detection by using multiple homogeneous (with different orientations) infrared sensors in the presence of changing ambient light intensities. The experimental results show that the proposed target detection procedure with feature-level sensor fusion outperforms those with decision-level sensor fusion. C1 [Li, Yue; Jha, Devesh K.; Ray, Asok; Wettergren, Thomas A.] Penn State Univ, Mech & Nucl Engn Dept, University Pk, PA 16802 USA. [Wettergren, Thomas A.] Naval Undersea Warfare Ctr, Newport, RI 02841 USA. RP Li, Y (reprint author), Penn State Univ, Mech & Nucl Engn Dept, University Pk, PA 16802 USA. EM yo15214@psu.edu; dkj5042@psu.edu; axr2@psu.edu; t.a.wettergren@ieee.org NR 13 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 978-1-4799-8684-2 J9 P AMER CONTR CONF PY 2015 BP 2433 EP 2438 PG 6 WC Automation & Control Systems; Engineering, Electrical & Electronic SC Automation & Control Systems; Engineering GA BE2YC UT WOS:000370259202086 ER PT S AU Galloway, KS Dey, B AF Galloway, Kevin S. Dey, Biswadip GP IEEE TI Station Keeping through Beacon-referenced Cyclic Pursuit SO 2015 AMERICAN CONTROL CONFERENCE (ACC) SE Proceedings of the American Control Conference LA English DT Proceedings Paper CT American Control Conference CY JUL 01-03, 2015 CL Chicago, IL SP Amer Automat Control Council, IFAC, Adaptics Inc, Altair, dSPACE, Eaton Corp, Elsevier, Int Journal Automat & Comp, Journal Franklin Inst, Plexim Inc, Soc Ind & Appl Math, Springer, CRC Press Taylor & Francis Grp Cogent OA, United Technologies Res Ctr, Wiley, Boeing, Ford Motor Co, GE Global Res, Honeywell, MathWorks, Mitsubishi Elect Res Lab, Quanser DE Cyclic pursuit; Multi-agent systems; Decentralized control; Robot motion AB This paper investigates a modification of cyclic CB pursuit in a multi-agent system in which each agent pays attention to a neighbor and a beacon. The problem admits shape equilibria with collective circling about the beacon, with the circling radius and angular separation of agents determined by choice of parameters in the feedback law. Stability of circling shape equilibria is shown for a 2-agent system, and the results are demonstrated on a collective of mobile robots tracked by a motion capture system. C1 [Galloway, Kevin S.] US Naval Acad, Dept Elect & Comp Engn, Annapolis, MD 21402 USA. [Dey, Biswadip] Univ Maryland, Syst Res Inst, Dept Elect & Comp Engn, College Pk, MD 20742 USA. RP Galloway, KS (reprint author), US Naval Acad, Dept Elect & Comp Engn, Annapolis, MD 21402 USA. EM kgallowa@usna.edu; biswadip@umd.edu NR 12 TC 2 Z9 2 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 0743-1619 BN 978-1-4799-8684-2 J9 P AMER CONTR CONF PY 2015 BP 4765 EP 4770 PG 6 WC Automation & Control Systems; Engineering, Electrical & Electronic SC Automation & Control Systems; Engineering GA BE2YC UT WOS:000370259204142 ER PT S AU Turner, MC O'Brien, RT AF Turner, Matthew C. O'Brien, Richard T. GP IEEE TI An anti-windup scheme for an adaptive H-infinity vibration controller: development and simulations SO 2015 AMERICAN CONTROL CONFERENCE (ACC) SE Proceedings of the American Control Conference LA English DT Proceedings Paper CT American Control Conference CY JUL 01-03, 2015 CL Chicago, IL SP Amer Automat Control Council, IFAC, Adaptics Inc, Altair, dSPACE, Eaton Corp, Elsevier, Int Journal Automat & Comp, Journal Franklin Inst, Plexim Inc, Soc Ind & Appl Math, Springer, CRC Press Taylor & Francis Grp Cogent OA, United Technologies Res Ctr, Wiley, Boeing, Ford Motor Co, GE Global Res, Honeywell, MathWorks, Mitsubishi Elect Res Lab, Quanser ID LINEAR MATRIX INEQUALITIES; RICCATI-EQUATIONS; INPUT SATURATION; SYSTEMS; DESIGN AB This paper presents a simple nonlinear anti-windup strategy for use in conjunction with a novel type of adaptive robust controller. In the absence of saturation constraints, the adaptive robust controller can provide highly effective disturbance rejection, but this ability is gradually lost as the saturation level is increased. In order to improve the performance of the controller during saturated periods, it is complemented with both a linear anti-windup compensator and a nonlinear modification of this compensator. Simulation results show that both anti-windup compensators are able to assist the adaptive robust controller in preserving vibration reduction levels when saturation is present, but that the nonlinear compensator is able to offer a higher level of vibration attenuation during periods of severe control signal saturation. C1 [Turner, Matthew C.] Univ Leicester, Dept Engn, Leicester LE1 7RH, Leics, England. [O'Brien, Richard T.] US Naval Acad, Dept Weap & Syst Engn, Annapolis, MD 21402 USA. RP Turner, MC (reprint author), Univ Leicester, Dept Engn, Leicester LE1 7RH, Leics, England. EM mct6@leicester.ac.uk; riobrien@usna.edu NR 25 TC 2 Z9 2 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 0743-1619 BN 978-1-4799-8684-2 J9 P AMER CONTR CONF PY 2015 BP 5306 EP 5311 PG 6 WC Automation & Control Systems; Engineering, Electrical & Electronic SC Automation & Control Systems; Engineering GA BE2YC UT WOS:000370259205068 ER PT S AU Ross, IM Karpenko, M Proulx, RJ AF Ross, I. Michael Karpenko, Mark Proulx, Ronald J. GP IEEE TI A Lebesgue-Stieltjes Framework For Optimal Control and Allocation SO 2015 AMERICAN CONTROL CONFERENCE (ACC) SE Proceedings of the American Control Conference LA English DT Proceedings Paper CT American Control Conference CY JUL 01-03, 2015 CL Chicago, IL SP Amer Automat Control Council, IFAC, Adaptics Inc, Altair, dSPACE, Eaton Corp, Elsevier, Int Journal Automat & Comp, Journal Franklin Inst, Plexim Inc, Soc Ind & Appl Math, Springer, CRC Press Taylor & Francis Grp Cogent OA, United Technologies Res Ctr, Wiley, Boeing, Ford Motor Co, GE Global Res, Honeywell, MathWorks, Mitsubishi Elect Res Lab, Quanser ID FLIGHT AB A Lebesgue-Stieltjes optimal control framework is used as the basis for constructing deterministic controls for uncertain systems. The framework is motivated by large uncertainties that occur in the next generation of aerospace systems. Instead of designing new feedback controls that may be expensive to implement, this paper addresses the problem at the outer-loop level by reshaping the input subject to the constraints of the inner loop. Computations based on the combination of a hyper-pseudospectral method verified by Monte Carlo simulations demonstrate the efficacy of the ideas. Ground test results at Honeywell validate the operational readiness of the proposed concepts. C1 [Ross, I. Michael; Karpenko, Mark; Proulx, Ronald J.] Naval Postgrad Sch, Control & Optimizat, Monterey, CA 93943 USA. RP Ross, IM (reprint author), Naval Postgrad Sch, Control & Optimizat, Monterey, CA 93943 USA. EM mkarpenk@nps.edu NR 28 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 978-1-4799-8684-2 J9 P AMER CONTR CONF PY 2015 BP 5599 EP 5604 PG 6 WC Automation & Control Systems; Engineering, Electrical & Electronic SC Automation & Control Systems; Engineering GA BE2YC UT WOS:000370259205116 ER PT S AU Ross, IM Proulx, RJ Karpenko, M AF Ross, I. Michael Proulx, Ronald J. Karpenko, Mark GP IEEE TI Unscented Guidance SO 2015 AMERICAN CONTROL CONFERENCE (ACC) SE Proceedings of the American Control Conference LA English DT Proceedings Paper CT American Control Conference CY JUL 01-03, 2015 CL Chicago, IL SP Amer Automat Control Council, IFAC, Adaptics Inc, Altair, dSPACE, Eaton Corp, Elsevier, Int Journal Automat & Comp, Journal Franklin Inst, Plexim Inc, Soc Ind & Appl Math, Springer, CRC Press Taylor & Francis Grp Cogent OA, United Technologies Res Ctr, Wiley, Boeing, Ford Motor Co, GE Global Res, Honeywell, MathWorks, Mitsubishi Elect Res Lab, Quanser AB Unscented guidance combines the concept of the unscented transform with standard optimal control theory to produce an open-loop method to manage uncertainties in nonlinear dynamical systems. The theoretical foundations for this concept can be framed in terms of a low-order semi-discretization of a Lebesgue-Stieltjes optimal control problem. A Zermelo problem subject to parameter uncertainties is used to quantitatively demonstrate the substantial reductions in target error statistics (95% in mean and 70% in the trace of the covariance) through the use of unscented guidance. These ideas generate a tractable approach for solving chance-constrained optimal control problems. C1 [Ross, I. Michael; Proulx, Ronald J.; Karpenko, Mark] Naval Postgrad Sch, Control & Optimizat, Monterey, CA 93943 USA. RP Ross, IM (reprint author), Naval Postgrad Sch, Control & Optimizat, Monterey, CA 93943 USA. EM mkarpenk@nps.edu NR 20 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 978-1-4799-8684-2 J9 P AMER CONTR CONF PY 2015 BP 5605 EP 5610 PG 6 WC Automation & Control Systems; Engineering, Electrical & Electronic SC Automation & Control Systems; Engineering GA BE2YC UT WOS:000370259205117 ER PT S AU Vissicchio, S Cittadini, L Bonaventure, O Xie, GG Vanbever, L AF Vissicchio, Stefano Cittadini, Luca Bonaventure, Olivier Xie, Geoffrey G. Vanbever, Laurent GP IEEE TI On the Co-Existence of Distributed and Centralized Routing Control-Planes SO 2015 IEEE CONFERENCE ON COMPUTER COMMUNICATIONS (INFOCOM) SE IEEE INFOCOM LA English DT Proceedings Paper CT 34th IEEE Conference on Computer Communications (INFOCOM) CY APR 26-MAY 01, 2015 CL Hong Kong, PEOPLES R CHINA SP IEEE AB Network operators can and do deploy multiple routing control-planes, e.g., by running different protocols or instances of the same protocol. With the rise of SDN, multiple control-planes are likely to become even more popular, e.g., to enable hybrid SDN or multi-controller deployments. Unfortunately, previous works do not apply to arbitrary combinations of centralized and distributed control-planes. In this paper, we develop a general theory for coexisting control-planes. We provide a novel, exhaustive classification of existing and future control-planes (e.g., OSPF, EIGRP, and OpenFlow) based on fundamental control-plane properties that we identify. Our properties are general enough to study centralized and distributed control-planes under a common framework. We show that multiple uncoordinated control-planes can cause forwarding anomalies whose type solely depends on the identified properties. To show the wide applicability of our framework, we leverage our theoretical insight to (i) provide sufficient conditions to avoid anomalies, (ii) propose configuration guidelines, and (iii) define a provably-safe procedure for reconfigurations from any (combination of) control-planes to any other. Finally, we discuss prominent consequences of our findings on the deployment of new paradigms (notably, SDN) and previous research works. C1 [Vissicchio, Stefano; Bonaventure, Olivier] Catholic Univ Louvain, Louvain, Belgium. [Cittadini, Luca] Univ Rome Tre, I-00146 Rome, Italy. [Xie, Geoffrey G.] Naval Postgrad Sch, Monterey, CA USA. [Vanbever, Laurent] Princeton Univ, Princeton, NJ 08544 USA. RP Vissicchio, S (reprint author), Catholic Univ Louvain, Louvain, Belgium. NR 25 TC 0 Z9 0 U1 1 U2 3 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 0743-166X BN 978-1-4799-8381-0 J9 IEEE INFOCOM SER PY 2015 PG 9 WC Computer Science, Theory & Methods; Engineering, Electrical & Electronic; Telecommunications SC Computer Science; Engineering; Telecommunications GA BE3HL UT WOS:000370720100053 ER PT S AU Fellows, M Barlow, J Flachsbart, M Barkate, J Baylis, C Cohen, L Marks, RJ AF Fellows, Matthew Barlow, Jennifer Flachsbart, Matthew Barkate, Joseph Baylis, Charles Cohen, Lawrence Marks, Robert J., II GP IEEE TI Fast Radar Power Amplifier Optimization for Bandwidth, Efficiency, and Spectral Confinement Using the Smith Tube SO 2015 IEEE INTERNATIONAL RADAR CONFERENCE (RADARCON) SE IEEE Radar Conference LA English DT Proceedings Paper CT IEEE International Radar Conference (RadarCon) CY MAY 10-15, 2015 CL Arlington, VA SP IEEE, Aerosp & Elect Syst Soc, IEEE Signal Proc Soc, IEEE Geoscience & Remote Sensing Soc, IEEE Informat Theory Soc ID SIGNALS AB The Smith Tube, a three-dimensional cylindrical extension of the Smith Chart, provides a mechanism to simultaneously optimize power amplifier circuit and waveform parameters for radar transmitters. A direct, vector-based search algorithm is presented to find the optimum combination of bandwidth and load impedance for a power amplifier to maximize the waveform bandwidth while meeting requirements on the power-added efficiency and the adjacent-channel power ratio. For this optimization, waveform bandwidth is represented on the vertical axis of the Smith Tube, with the complex load reflection coefficient represented in the horizontal plane. Excellent correspondence is obtained in measurement testing of the algorithm from multiple starting combinations of load reflection coefficient and bandwidth. The results of this work are expected to be useful in real-time optimization of power amplifiers for radar and communications. The algorithm is expected to be useful in optimizing the range resolution of radar transmissions. C1 [Fellows, Matthew; Barlow, Jennifer; Flachsbart, Matthew; Barkate, Joseph; Baylis, Charles; Marks, Robert J., II] Baylor Univ, Dept Elect & Comp Engn, Wireless & Microwave Circuits & Syst Program, Waco, TX 76798 USA. [Cohen, Lawrence] US Navy, Res Lab, Div Radar, Washington, DC 20375 USA. RP Fellows, M (reprint author), Baylor Univ, Dept Elect & Comp Engn, Wireless & Microwave Circuits & Syst Program, Waco, TX 76798 USA. NR 27 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 1097-5764 BN 978-1-4799-8232-5 J9 IEEE RAD CONF PY 2015 BP 139 EP 144 PG 6 WC Engineering, Electrical & Electronic; Physics, Applied; Telecommunications SC Engineering; Physics; Telecommunications GA BE3MP UT WOS:000370972900026 ER PT S AU Sletten, M Menk, S Toporkov, J Jansen, RW Rosenberg, L AF Sletten, Mark Menk, Steven Toporkov, Jakov Jansen, Robert W. Rosenberg, Luke GP IEEE TI The NRL Multi Aperture SAR System SO 2015 IEEE INTERNATIONAL RADAR CONFERENCE (RADARCON) SE IEEE Radar Conference LA English DT Proceedings Paper CT IEEE International Radar Conference (RadarCon) CY MAY 10-15, 2015 CL Arlington, VA SP IEEE, Aerosp & Elect Syst Soc, IEEE Signal Proc Soc, IEEE Geoscience & Remote Sensing Soc, IEEE Informat Theory Soc ID RADAR AB This paper describes the Naval Research Laboratory Multi Aperture Synthetic Aperture Radar (NRL MSAR) and presents initial results from the first field deployment of this system. The NRL MSAR is an airborne test bed designed to investigate remote sensing and surveillance applications that exploit multiple along-track phase centers, in particular, applications that require measurement of scene motion. The system operates at X-band and supports 32 along-track phase centers through the use of two transmit horns and 16 receive antennas. As illustrated in this paper, SAR images generated with these phase centers can be coherently combined to directly measure scene motion using the Velocity SAR (VSAR) algorithm. In September 2014, this unique radar was deployed for the first time on an airborne platform, a Saab 340 aircraft. This paper presents a description of the system, initial images from the September 2014 tests, and the results of initial coherent analyses to produce estimates of scene and target motion. These images were collected over an ocean inlet and contain a variety of moving backscatter sources, including automobiles, ships, shoaling ocean waves, and tidal currents. C1 [Sletten, Mark; Menk, Steven; Toporkov, Jakov; Jansen, Robert W.] US Naval Res Lab, Washington, DC 20375 USA. [Rosenberg, Luke] Def Sci & Technol Org, Horten, Norway. [Rosenberg, Luke] Univ Adelaide, Adelaide, SA 5005, Australia. RP Sletten, M (reprint author), US Naval Res Lab, Washington, DC 20375 USA. EM mark.sletten@nrl.navy.mil NR 9 TC 1 Z9 1 U1 1 U2 2 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 1097-5764 BN 978-1-4799-8232-5 J9 IEEE RAD CONF PY 2015 BP 192 EP 197 PG 6 WC Engineering, Electrical & Electronic; Physics, Applied; Telecommunications SC Engineering; Physics; Telecommunications GA BE3MP UT WOS:000370972900035 ER PT S AU Coutts, S Stevens, W Eisenman, J Jao, JK Rodriguez, S Freburger, B Lee, W AF Coutts, Scott Stevens, William Eisenman, Jennifer Jao, Jen King Rodriguez, Serafin Freburger, Brian Lee, William GP IEEE TI Low-angle Propagation Measurements at HF over Farmland SO 2015 IEEE INTERNATIONAL RADAR CONFERENCE (RADARCON) SE IEEE Radar Conference LA English DT Proceedings Paper CT IEEE International Radar Conference (RadarCon) CY MAY 10-15, 2015 CL Arlington, VA SP IEEE, Aerosp & Elect Syst Soc, IEEE Signal Proc Soc, IEEE Geoscience & Remote Sensing Soc, IEEE Informat Theory Soc DE HF propagation; over-the-horizon radar; wind turbine interference AB High fidelity electromagnetic modeling of the wave propagation field is essential to accurately assess the impact of wind-turbine modulated ground clutter on high frequency (HF) Over-The-Horizon (OTH) radar performance. To support the modeling effort, field measurements were conducted in 2014 near the AN/TPS-71 HF Relocatable Over-the-Horizon Radar (ROTHR) in Virginia to investigate wave propagation near the ground. Extensive propagation data were collected by transmitting from a helicopter-borne HF transmitter to a number of monopole antennas on the ground near the ROTHR receive site at three HF frequencies (7.5 MHz, 14.5 MHz, and 23.5 MHz) and various elevation angles from five to zero degrees (grazing incidence) as measured from the receive antenna. The measurement ranges varied from 5 to 40 km and the helicopter altitudes varied from ground level up to 6000 feet. The measurement results are well correlated with model-based predictions for a smooth-homogeneous-earth surface provided that the "effective" dielectric constant and conductivity of the terrain are reduced from their expected values as estimated from in situ soil samples and the National Land Cover Database. C1 [Coutts, Scott; Stevens, William; Eisenman, Jennifer; Jao, Jen King] MIT, Lincoln Lab, 244 Wood St, Lexington, MA 02420 USA. [Rodriguez, Serafin; Freburger, Brian; Lee, William] Naval Res Lab, Washington, DC 20375 USA. RP Coutts, S (reprint author), MIT, Lincoln Lab, 244 Wood St, Lexington, MA 02420 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 1097-5764 BN 978-1-4799-8232-5 J9 IEEE RAD CONF PY 2015 BP 713 EP 716 PG 4 WC Engineering, Electrical & Electronic; Physics, Applied; Telecommunications SC Engineering; Physics; Telecommunications GA BE3MP UT WOS:000370972900130 ER PT S AU Frazer, GJ Williams, CG Abramovich, YI San-Antonio, G AF Frazer, G. J. Williams, C. G. Abramovich, Y. I. San-Antonio, G. GP IEEE TI A Regular Two-Dimensional Over-Sampled Sparse Receiving Array for Over-the-Horizon Radar SO 2015 IEEE INTERNATIONAL RADAR CONFERENCE (RADARCON) SE IEEE Radar Conference LA English DT Proceedings Paper CT IEEE International Radar Conference (RadarCon) CY MAY 10-15, 2015 CL Arlington, VA SP IEEE, Aerosp & Elect Syst Soc, IEEE Signal Proc Soc, IEEE Geoscience & Remote Sensing Soc, IEEE Informat Theory Soc DE HF radar; OTHR; sparse; receiving array; superdirective; sensitivity AB This paper considers the problem of increasing the sensitivity of the receiving system in an Over-The-Horizon Radar. We are concerned with the problem of detecting small targets in noise during night-time operation when reduced ionospheric propagation support limits the radar operating frequency to the lower part of the HF band and the external noise environment is higher than during daytime. Our receiving array design uses both over-dense array element spacing and sparse element spacing in a two-dimensional regular element configuration. The physical layout is both practically realistic and robust to ionospheric decorrelation effects for receiving arrays with very large spatial extent. We show that this design achieves performance close to the existing one-dimensional designs, but, unlike the current receiving arrays, scales in performance to the sensitivity levels required in future OTHR systems. C1 [Frazer, G. J.] DSTO, NSI Div, Edinburgh, SA, Australia. [Williams, C. G.] Gadzooks Pty Ltd, Tech Serv Div, Melbourne, Vic, Australia. [Abramovich, Y. I.] WR Syst Ltd, Fairfax, VA USA. [San-Antonio, G.] Naval Res Lab, Washington, DC 20375 USA. RP Frazer, GJ (reprint author), DSTO, NSI Div, Edinburgh, SA, Australia. EM gordon.frazer@dsto.defence.gov.au NR 12 TC 1 Z9 1 U1 0 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 1097-5764 BN 978-1-4799-8232-5 J9 IEEE RAD CONF PY 2015 BP 840 EP 845 PG 6 WC Engineering, Electrical & Electronic; Physics, Applied; Telecommunications SC Engineering; Physics; Telecommunications GA BE3MP UT WOS:000370972900153 ER PT S AU Vouras, P AF Vouras, Peter GP IEEE TI Fully Adaptive Space-Time Processing on Nested Arrays SO 2015 IEEE INTERNATIONAL RADAR CONFERENCE (RADARCON) SE IEEE Radar Conference LA English DT Proceedings Paper CT IEEE International Radar Conference (RadarCon) CY MAY 10-15, 2015 CL Arlington, VA SP IEEE, Aerosp & Elect Syst Soc, IEEE Signal Proc Soc, IEEE Geoscience & Remote Sensing Soc, IEEE Informat Theory Soc AB This paper describes fully adaptive nonlinear space-time processing on nested arrays. Nested arrays are sparse arrays that in conjunction with nonlinear processing of the received signals enable more adaptive degrees of freedom than a conventional linear beamformer would allow. The Space-Time Adaptive Processing (STAP) architecture proposed in this paper consists of a nested array that samples received pulses on a nested temporal interval. The sparse spatial and temporal sampling pattern of the proposed architecture together with the nonlinear processing performed on the received pulses makes this STAP architecture fundamentally different from conventional STAP arrays. Simulated results for an airborne platform illustrate angle-Doppler nulling performance for illuminated ground clutter and for jamming interference. C1 [Vouras, Peter] Naval Res Lab, Div Radar, Washington, DC 20375 USA. RP Vouras, P (reprint author), Naval Res Lab, Div Radar, Washington, DC 20375 USA. 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 SN 1097-5764 BN 978-1-4799-8232-5 J9 IEEE RAD CONF PY 2015 BP 858 EP 863 PG 6 WC Engineering, Electrical & Electronic; Physics, Applied; Telecommunications SC Engineering; Physics; Telecommunications GA BE3MP UT WOS:000370972900156 ER PT S AU Webster, T Higgins, T Shackelford, AK Jakabosky, J McCormick, P AF Webster, Tegan Higgins, Thomas Shackelford, Aaron K. Jakabosky, John McCormick, Patrick GP IEEE TI Phase-Only Adaptive Spatial Transmit Nulling SO 2015 IEEE INTERNATIONAL RADAR CONFERENCE (RADARCON) SE IEEE Radar Conference LA English DT Proceedings Paper CT IEEE International Radar Conference (RadarCon) CY MAY 10-15, 2015 CL Arlington, VA SP IEEE, Aerosp & Elect Syst Soc, IEEE Signal Proc Soc, IEEE Geoscience & Remote Sensing Soc, IEEE Informat Theory Soc AB Adaptive phase-only transmit nulling was previously demonstrated using an eight-channel radar test bed. An error in the calibration software that left one of the transmit elements uncalibrated has since been corrected. New experimental results are presented that demonstrate improved performance relative to previous experiments. In this paper the Reiterative Uniform Weight Optimization (RUWO) algorithm, which utilizes the maximum signal-to-interference plus noise ratio (SINR) framework in a reiterative fashion, is used to generate adaptive phase-only weights from received interference data. Additionally, this work investigates the impact of the bandwidth of the interference signal on the ability to adaptively produce spatial nulls using RUWO. C1 [Webster, Tegan; Higgins, Thomas; Shackelford, Aaron K.] Naval Res Lab, Div Radar, Washington, DC 20375 USA. [Jakabosky, John; McCormick, Patrick] Univ Kansas, Radar Syst Lab, Lawrence, KS 66045 USA. RP Webster, T (reprint author), Naval 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 1097-5764 BN 978-1-4799-8232-5 J9 IEEE RAD CONF PY 2015 BP 931 EP 936 PG 6 WC Engineering, Electrical & Electronic; Physics, Applied; Telecommunications SC Engineering; Physics; Telecommunications GA BE3MP UT WOS:000370972900169 ER PT S AU Jakabosky, J Blunt, SD Higgins, T AF Jakabosky, John Blunt, Shannon D. Higgins, Thomas GP IEEE TI Ultra-Low Sidelobe Waveform Design via Spectral Shaping and LINC Transmit Architecture SO 2015 IEEE INTERNATIONAL RADAR CONFERENCE (RADARCON) SE IEEE Radar Conference LA English DT Proceedings Paper CT IEEE International Radar Conference (RadarCon) CY MAY 10-15, 2015 CL Arlington, VA SP IEEE, Aerosp & Elect Syst Soc, IEEE Signal Proc Soc, IEEE Geoscience & Remote Sensing Soc, IEEE Informat Theory Soc AB A new spectral-shaping approach is used to design jointly the amplitude window and phase of a tapered NLFM waveform. This approach can produce physical radar emissions with ultra-low sidelobes that support sufficient spectral roll-off to maintain forthcoming spectral compliance requirements. A small SNR loss is traded for a substantial reduction in range sidelobes. Further, it is demonstrated that this tapered waveform scheme can be readily combined with the linear amplification using nonlinear components (LINC) architecture to realize the small yet necessary amplitude variation while operating the power amplifiers in saturation, which may be used to realize enhanced power efficiency. Experimental measurements demonstrate range sidelobes below. 80 dB with less than 0.3 dB in SNR loss. C1 [Jakabosky, John; Blunt, Shannon D.] Univ Kansas, Radar Syst Lab, Lawrence, KS 66045 USA. [Higgins, Thomas] Naval Res Lab, Div Radar, Washington, DC 20375 USA. RP Jakabosky, J (reprint author), Univ Kansas, Radar Syst Lab, Lawrence, KS 66045 USA. NR 19 TC 1 Z9 1 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 1097-5764 BN 978-1-4799-8232-5 J9 IEEE RAD CONF PY 2015 BP 1021 EP 1026 PG 6 WC Engineering, Electrical & Electronic; Physics, Applied; Telecommunications SC Engineering; Physics; Telecommunications GA BE3MP UT WOS:000370972900185 ER PT S AU Abramovich, YI Antonio, GS Frazer, GJ AF Abramovich, Yuri I. Antonio, Geoffrey San Frazer, Gordon J. GP IEEE TI On the Property of the Optimum Radar Waveform for Target Detection in Heavy Clutter SO 2015 IEEE INTERNATIONAL RADAR CONFERENCE (RADARCON) SE IEEE Radar Conference LA English DT Proceedings Paper CT IEEE International Radar Conference (RadarCon) CY MAY 10-15, 2015 CL Arlington, VA SP IEEE, Aerosp & Elect Syst Soc, IEEE Signal Proc Soc, IEEE Geoscience & Remote Sensing Soc, IEEE Informat Theory Soc DE optimum waveform; mismatched filter AB This paper examines the 50-year old problem of the properties of the optimum "waveform-mismatched filter" pair. In particular, it is demonstrated that the conjecture made in [5], [6] that for an arbitrary area in the range-Doppler frequency plane occupied by clutter, the optimum waveform calculated for one target Doppler frequency is also optimum for other target Doppler frequencies, is in general not correct. C1 [Abramovich, Yuri I.] WR Syst, Fairfax, VA 22030 USA. [Antonio, Geoffrey San] US Naval Res Lab, Washington, DC 20375 USA. [Frazer, Gordon J.] DSTO, NSI Div, Edinburgh, SA, Australia. RP Abramovich, YI (reprint author), WR Syst, Fairfax, VA 22030 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 1097-5764 BN 978-1-4799-8232-5 J9 IEEE RAD CONF PY 2015 BP 1044 EP 1049 PG 6 WC Engineering, Electrical & Electronic; Physics, Applied; Telecommunications SC Engineering; Physics; Telecommunications GA BE3MP UT WOS:000370972900189 ER PT S AU Raj, RG Jansen, RW Lipps, RD Sletten, MA Rosenberg, L AF Raj, Raghu G. Jansen, Robert W. Lipps, Ronald D. Sletten, Mark A. Rosenberg, Luke GP IEEE TI Velocity-ISAR: On the Application of ISAR Techniques to Multichannel SAR Imaging SO 2015 IEEE INTERNATIONAL RADAR CONFERENCE (RADARCON) SE IEEE Radar Conference LA English DT Proceedings Paper CT IEEE International Radar Conference (RadarCon) CY MAY 10-15, 2015 CL Arlington, VA SP IEEE, Aerosp & Elect Syst Soc, IEEE Signal Proc Soc, IEEE Geoscience & Remote Sensing Soc, IEEE Informat Theory Soc DE Imaging; Synthetic Aperture Radar (SAR); Multichannel SAR (MSAR); Inverse SAR (ISAR); Velocity SAR (VSAR); Motion Compensation; Phase compensation ID SYNTHETIC-APERTURE RADAR; SYSTEM AB The U.S. Naval Research Laboratory (NRL) Multichannel Synthetic Aperture Radar (MSAR) consists of multiple receive channels arranged along the flight direction and is unique in its ability to measure and correct for radial motion at each pixel in the scene. A well-known algorithm for performing MSAR imaging, and which have we applied for the first time to data captured by an airborne system, is the Velocity Synthetic Aperture Radar (VSAR) algorithm. VSAR calculates the distribution of Doppler radial velocities associated with each pixel and subsequently compensates for the velocities in order to combat motion blur. However, as we demonstrate in this paper, the VSAR algorithm does not fully exploit the special structure associated with the motion dynamics of rigid bodies (including translational and roll-pitch-yaw motions) in maritime conditions. To this end we propose the use of Inverse Synthetic Aperture Radar (ISAR) based motion compensation techniques-in conjunction with velocity filtering-as a means of accomplishing this objective for MSAR imaging. After describing the rudiments of the NRL MSAR system and the basics of ISAR processing, we subsequently proceed to describe our proposed Velocity-ISAR (VISAR) imaging algorithm. We demonstrate the performance of our VISAR algorithm by imaging boats captured by our airborne NRL MSAR system; and highlight its relative advantages over VSAR in imaging maritime targets. C1 [Raj, Raghu G.; Jansen, Robert W.; Lipps, Ronald D.; Sletten, Mark A.] US Naval Res Lab, Washington, DC 20375 USA. [Rosenberg, Luke] Univ Adelaide, Def Sci & Technol Org, Adelaide, SA 5005, Australia. RP Raj, RG (reprint author), US Naval Res Lab, Washington, DC 20375 USA. NR 20 TC 0 Z9 0 U1 0 U2 3 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 1097-5764 BN 978-1-4799-8232-5 J9 IEEE RAD CONF PY 2015 BP 1050 EP 1055 PG 6 WC Engineering, Electrical & Electronic; Physics, Applied; Telecommunications SC Engineering; Physics; Telecommunications GA BE3MP UT WOS:000370972900190 ER PT S AU Abramovich, YI Antonio, GS AF Abramovich, Yuri I. Antonio, Geoffrey San GP IEEE TI Windfarm Re-Scattered Clutter Mitigation in HF OTHR with 2D Receive Antenna Arrays SO 2015 IEEE INTERNATIONAL RADAR CONFERENCE (RADARCON) SE IEEE Radar Conference LA English DT Proceedings Paper CT IEEE International Radar Conference (RadarCon) CY MAY 10-15, 2015 CL Arlington, VA SP IEEE, Aerosp & Elect Syst Soc, IEEE Signal Proc Soc, IEEE Geoscience & Remote Sensing Soc, IEEE Informat Theory Soc DE HF OTHR; windfarm interference AB Massive windfarms located in front of high frequency over-the-horizon radar (HF OTHR) receive (Rx) antenna arrays modulate strong backscattered ground clutter returns and re-scatter these modulated returns towards the Rx array. In this paper it is shown that these windfarm modulated returns propagated via a ground wave path can be rejected by the optimum processing in 2D Rx antenna arrays with elevation selectivity. We investigate the efficiency of windfarm interference mitigation in Rx arrays with different 2D geometries and specify an optimum geometry for a particular windfarm location with respect to a given RX antenna array. C1 [Abramovich, Yuri I.] WR Syst, Fairfax, VA 22030 USA. [Antonio, Geoffrey San] US Naval Res Lab, Washington, DC 20375 USA. RP Abramovich, YI (reprint author), WR Syst, Fairfax, VA 22030 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 1097-5764 BN 978-1-4799-8232-5 J9 IEEE RAD CONF PY 2015 BP 1056 EP 1061 PG 6 WC Engineering, Electrical & Electronic; Physics, Applied; Telecommunications SC Engineering; Physics; Telecommunications GA BE3MP UT WOS:000370972900191 ER PT S AU Abramovich, YI San Antonio, G AF Abramovich, Yuri I. San Antonio, Geoffrey GP IEEE TI Range Sidelobe Control for LFMCW Waveforms in OTHR with Direct Digital Receivers SO 2015 IEEE INTERNATIONAL RADAR CONFERENCE (RADARCON) SE IEEE Radar Conference LA English DT Proceedings Paper CT IEEE International Radar Conference (RadarCon) CY MAY 10-15, 2015 CL Arlington, VA SP IEEE, Aerosp & Elect Syst Soc, IEEE Signal Proc Soc, IEEE Geoscience & Remote Sensing Soc, IEEE Informat Theory Soc DE HF OTHR; range-sidelobes; mismatch filtering; periodic waveforms C1 [Abramovich, Yuri I.] WR Syst, Fairfax, VA 22030 USA. [San Antonio, Geoffrey] US Naval Res Lab, Washington, DC 20375 USA. RP Abramovich, YI (reprint author), WR Syst, Fairfax, VA 22030 USA. NR 6 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 1097-5764 BN 978-1-4799-8232-5 J9 IEEE RAD CONF PY 2015 BP 1088 EP 1092 PG 5 WC Engineering, Electrical & Electronic; Physics, Applied; Telecommunications SC Engineering; Physics; Telecommunications GA BE3MP UT WOS:000370972900197 ER PT S AU San Antonio, G Abramovich, YI Frazer, GJ Williams, C AF San Antonio, Geoffrey Abramovich, Yuri I. Frazer, Gordon J. Williams, Charles GP IEEE TI Electromagnetic vs. Plane Wave Models for Superdirective 2D Adaptive HF Receive Antenna Performance Assessment SO 2015 IEEE INTERNATIONAL RADAR CONFERENCE (RADARCON) SE IEEE Radar Conference LA English DT Proceedings Paper CT IEEE International Radar Conference (RadarCon) CY MAY 10-15, 2015 CL Arlington, VA SP IEEE, Aerosp & Elect Syst Soc, IEEE Signal Proc Soc, IEEE Geoscience & Remote Sensing Soc, IEEE Informat Theory Soc DE HF OTHR; 2D Arrays; electromagnetic model; superdirectivity C1 [San Antonio, Geoffrey] US Naval Res Lab, Washington, DC 20375 USA. [Abramovich, Yuri I.] WR Syst, Fairfax, VA 22030 USA. [Frazer, Gordon J.] DSTO, NSI Div, Edinburgh, SA, Australia. [Williams, Charles] Gadzooks Pty Ltd, Melbourne, VC, Australia. RP San Antonio, G (reprint author), US Naval Res Lab, Washington, DC 20375 USA. NR 13 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 1097-5764 BN 978-1-4799-8232-5 J9 IEEE RAD CONF PY 2015 BP 1093 EP 1098 PG 6 WC Engineering, Electrical & Electronic; Physics, Applied; Telecommunications SC Engineering; Physics; Telecommunications GA BE3MP UT WOS:000370972900198 ER PT S AU Garren, DA AF Garren, David Alan GP IEEE TI Signatures of Surface Targets with Increasing Speed in Spotlight Synthetic Aperture Radar SO 2015 IEEE INTERNATIONAL RADAR CONFERENCE (RADARCON) SE IEEE Radar Conference LA English DT Proceedings Paper CT IEEE International Radar Conference (RadarCon) CY MAY 10-15, 2015 CL Arlington, VA SP IEEE, Aerosp & Elect Syst Soc, IEEE Signal Proc Soc, IEEE Geoscience & Remote Sensing Soc, IEEE Informat Theory Soc ID MOVING TARGETS AB This paper investigates the signature characteristics in spotlight synthetic aperture radar (SAR) imagery for surface targets that are increasing speed during the collection interval. This study considers the broadside geometry case wherein the radar sensor moves with constant speed and heading on a level flight path. The analysis concentrates on the target migration effects in which the moving target smear exhibits some defocus in the range direction, although much smaller in magnitude than the smearing in the radar cross-range direction. This paper focuses on the case of a target that executes a speed transition during the SAR collection interval. The SAR simulations are shown to give moving target signatures that are in agreement with the predicted shapes of the central contours. C1 [Garren, David Alan] Naval Postgrad Sch, Elect & Comp Engn Dept, Monterey, CA 93943 USA. RP Garren, DA (reprint author), Naval Postgrad Sch, Elect & Comp Engn Dept, Monterey, CA 93943 USA. EM dagarren@nps.edu NR 13 TC 2 Z9 2 U1 0 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 1097-5764 BN 978-1-4799-8232-5 J9 IEEE RAD CONF PY 2015 BP 1114 EP 1118 PG 5 WC Engineering, Electrical & Electronic; Physics, Applied; Telecommunications SC Engineering; Physics; Telecommunications GA BE3MP UT WOS:000370972900202 ER PT S AU Henke, D McCormick, P Blunt, SD Higgins, T AF Henke, Dakota McCormick, Patrick Blunt, Shannon D. Higgins, Thomas GP IEEE TI Practical Aspects of Optimal Mismatch Filtering and Adaptive Pulse Compression for FM Waveforms SO 2015 IEEE INTERNATIONAL RADAR CONFERENCE (RADARCON) SE IEEE Radar Conference LA English DT Proceedings Paper CT IEEE International Radar Conference (RadarCon) CY MAY 10-15, 2015 CL Arlington, VA SP IEEE, Aerosp & Elect Syst Soc, IEEE Signal Proc Soc, IEEE Geoscience & Remote Sensing Soc, IEEE Informat Theory Soc ID REDUCTION AB The sensitivity impact of range straddling in the form of mismatch loss is well known. What is less appreciated, however, is the effect upon dynamic range, particularly for receive filtering that seeks to minimize range sidelobes. For FM-based waveforms, which are readily implementable in a high-power radar system, it is shown that least-squares (LS) mismatched filtering (MMF) realizes a penalty in sidelobe suppression when range straddling occurs. This degradation can be partially compensated through modification of the LS MMF implementation. Alternatively, adaptive pulse compression (APC), appropriately modified for application to FM waveforms, demonstrates robustness to both straddling and eclipsing effects. Simulated and experimentally measured results are provided to demonstrate the efficacy of these filtering approaches. C1 [Henke, Dakota; McCormick, Patrick; Blunt, Shannon D.] Univ Kansas, Radar Syst Lab, Lawrence, KS 66045 USA. [Higgins, Thomas] US Naval Res Lab, Radar Div, Washington, DC USA. RP Henke, D (reprint author), Univ Kansas, Radar Syst Lab, Lawrence, KS 66045 USA. NR 17 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 1097-5764 BN 978-1-4799-8232-5 J9 IEEE RAD CONF PY 2015 BP 1149 EP 1155 PG 7 WC Engineering, Electrical & Electronic; Physics, Applied; Telecommunications SC Engineering; Physics; Telecommunications GA BE3MP UT WOS:000370972900208 ER PT S AU Dorsey, WM Scholnik, DP AF Dorsey, W. Mark Scholnik, Dan P. GP IEEE TI A Hybrid Global-Local Optimization Approach to Phase-Only Array-Pattern Synthesis SO 2015 IEEE INTERNATIONAL RADAR CONFERENCE (RADARCON) SE IEEE Radar Conference LA English DT Proceedings Paper CT IEEE International Radar Conference (RadarCon) CY MAY 10-15, 2015 CL Arlington, VA SP IEEE, Aerosp & Elect Syst Soc, IEEE Signal Proc Soc, IEEE Geoscience & Remote Sensing Soc, IEEE Informat Theory Soc ID REFLECTARRAYS; ALGORITHMS AB Phased array magnitude/power-pattern synthesis is in general a nonconvex optimization problem which can exhibit a large number of local minima. This is often exacerbated by the addition of (nonconvex) magnitude constraints on the array weights. Practical large-scale design of such patterns requires both efficient local optimization to quickly identify candidate minima, and nonlocal ("global") optimization to provide new starting points and evaluate the resulting minima to find a suitable, if not global, solution. Here we combine a very efficient constrained local formulation based on a weighted pattern-error metric with a parameterized heuristic method for generating initial array weights and a global method for searching over the parameter space. We additionally show that passband point-nulls, a common local-minima artifact, can be reliably detected early in the local optimization allowing for quick termination. C1 [Dorsey, W. Mark; Scholnik, Dan P.] Naval Res Lab, Code 5317, Washington, DC 20375 USA. RP Dorsey, WM (reprint author), Naval Res Lab, Code 5317, Washington, DC 20375 USA. NR 29 TC 2 Z9 2 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 1097-5764 BN 978-1-4799-8232-5 J9 IEEE RAD CONF PY 2015 BP 1417 EP 1422 PG 6 WC Engineering, Electrical & Electronic; Physics, Applied; Telecommunications SC Engineering; Physics; Telecommunications GA BE3MP UT WOS:000370972900258 ER PT S AU Nieh, JY Romero, RA AF Nieh, Jo-Yen Romero, Ric A. GP IEEE TI Integrated range-Doppler map and extended target identification with adaptive waveform for cognitive radar SO 2015 IEEE INTERNATIONAL RADAR CONFERENCE (RADARCON) SE IEEE Radar Conference LA English DT Proceedings Paper CT IEEE International Radar Conference (RadarCon) CY MAY 10-15, 2015 CL Arlington, VA SP IEEE, Aerosp & Elect Syst Soc, IEEE Signal Proc Soc, IEEE Geoscience & Remote Sensing Soc, IEEE Informat Theory Soc DE adaptive waveform design; range Doppler map; identification; eigenwaveform; cognitive radar ID DESIGN AB In this paper, we propose an integrated scheme to identify an extended moving target while trying to correctly locate its peak range-Doppler cell. The scheme is extended to handle multiple target responses. The cognitive radar platform uses adaptive waveform based on the eigenwaveform. Two real-time adaptive waveforms called maximum a posteriori probability weighted eigenwaveform (MAP-PWE) and match-filtered PWE (MF-PWE) are combined with range-Doppler map (RDM) technique to execute target type identification for moving extended targets. Joint RDM cell localization and target identification performance comparison between a traditional pulsed wideband waveform, MAP-PWE, and MF-PWE techniques are shown. It is noted the MF-PWE performs better than the wideband and MAP-PWE. C1 [Nieh, Jo-Yen; Romero, Ric A.] Naval Postgrad Sch, Dept Elect & Comp Engn, Monterey, CA USA. RP Nieh, JY (reprint author), Naval Postgrad Sch, Dept Elect & Comp Engn, Monterey, CA USA. EM jnieh@nps.edu; rnromero@nps.edu 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 SN 1097-5764 BN 978-1-4799-8232-5 J9 IEEE RAD CONF PY 2015 BP 1644 EP 1649 PG 6 WC Engineering, Electrical & Electronic; Physics, Applied; Telecommunications SC Engineering; Physics; Telecommunications GA BE3MP UT WOS:000370972900303 ER PT S AU Scholnik, DP AF Scholnik, Dan P. GP IEEE TI Optimization of Array Tapers Subject to Transmit Constraints SO 2015 IEEE INTERNATIONAL RADAR CONFERENCE (RADARCON) SE IEEE Radar Conference LA English DT Proceedings Paper CT IEEE International Radar Conference (RadarCon) CY MAY 10-15, 2015 CL Arlington, VA SP IEEE, Aerosp & Elect Syst Soc, IEEE Signal Proc Soc, IEEE Geoscience & Remote Sensing Soc, IEEE Informat Theory Soc ID LINEAR ARRAYS; PEAK AMPLITUDE; EFFICIENT; PATTERNS; DESIGN AB Array tapers are traditionally used only on receive, as classical low-sidelobe tapers would result in a significant reduction in transmitted power and most transmit arrays lack element-level amplitude control. As modern arrays move towards solid-state transmitters distributed to each element there is a desire to more fully harness this flexibility. It has been previously shown that the transmit power loss can be reduced by designing tapers that upper-bound the coefficients while allowing a small number of inner array-factor sidelobes to remain unconstrained. That work is extended here to remove structural limitations of the prior algorithm, admit arbitrary combinations of peak and mean-square constraints on the weights and the array factor, allow controlled "overdriving" of some elements, and allow lower-bounding of the array weights to limit the dynamic range of the taper. These extensions are enabled though the use of second-order cone programming, a popular form of constrained convex optimization. C1 [Scholnik, Dan P.] Naval Res Lab, Code 5341, Washington, DC 20375 USA. RP Scholnik, DP (reprint author), Naval Res Lab, Code 5341, Washington, DC 20375 USA. NR 22 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 1097-5764 BN 978-1-4799-8232-5 J9 IEEE RAD CONF PY 2015 BP 1714 EP 1719 PG 6 WC Engineering, Electrical & Electronic; Physics, Applied; Telecommunications SC Engineering; Physics; Telecommunications GA BE3MP UT WOS:000370972900316 ER PT S AU Eustice, D Baylis, C Cohen, L Marks, RJ AF Eustice, Dylan Baylis, Charles Cohen, Lawrence Marks, Robert J., II GP IEEE TI Effects of Power Amplifier Nonlinearities on the Radar Ambiguity Function SO 2015 IEEE INTERNATIONAL RADAR CONFERENCE (RADARCON) SE IEEE Radar Conference LA English DT Proceedings Paper CT IEEE International Radar Conference (RadarCon) CY MAY 10-15, 2015 CL Arlington, VA SP IEEE, Aerosp & Elect Syst Soc, IEEE Signal Proc Soc, IEEE Geoscience & Remote Sensing Soc, IEEE Informat Theory Soc DE ambiguity function; power amplifiers; spectrum engineering; estimation ID WAVE-FORMS; PREDISTORTION; EFFICIENT AB The radar ambiguity function describes the possibility of errors in range and Doppler detection for targets of certain range-Doppler combinations. Nonlinear power amplifiers in radar transmitters provide many undesirable effects, including spreading of the radar spectrum. Based on the known impacts of the power amplifier nonlinearities on the waveform and spectrum that is transmitted, this paper assesses the related impacts on the ambiguity function and, therefore, on the estimation precision capabilities of the radar. Simulation results for nonlinear microwave power-amplifier transistor models are presented to illustrate the theory that is presented. Simulations using a Gaussian Barker code implementation show that amplifier nonlinearities cause widening of ambiguity content in the Doppler dimension, widening of range sidelobes, and deepening of range and Doppler nulls. The theory and observations presented in this paper are expected to find significant application in radar waveform optimization to provide desired ambiguity-function properties while maintaining spectral compliance. C1 [Eustice, Dylan; Baylis, Charles; Marks, Robert J., II] Baylor Univ, Dept Elect & Comp Engn, Wireless & Microwave Circuits & Syst Program, Waco, TX 76798 USA. [Cohen, Lawrence] US Naval Res Lab, Radar Div, Washington, DC USA. RP Eustice, D (reprint author), Baylor Univ, Dept Elect & Comp Engn, Wireless & Microwave Circuits & Syst Program, Waco, TX 76798 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 1097-5764 BN 978-1-4799-8232-5 J9 IEEE RAD CONF PY 2015 BP 1725 EP 1729 PG 5 WC Engineering, Electrical & Electronic; Physics, Applied; Telecommunications SC Engineering; Physics; Telecommunications GA BE3MP UT WOS:000370972900318 ER PT S AU Naglich, EJ Guyette, AC Shin, S AF Naglich, Eric J. Guyette, Andrew C. Shin, Sanghoon GP IEEE TI Microwave Bandstop Filters with Minimum Through-Line Length SO 2015 IEEE MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM (IMS) SE IEEE MTT-S International Microwave Symposium LA English DT Proceedings Paper CT IEEE MTT-S International Microwave Symposium (IMS) CY MAY 17-22, 2015 CL Phoenix, AZ SP IEEE MTT S DE Microwave filters; microstrip filters; filtering theory; resonator filters AB The theory of bandstop filters with minImum through-line length is developed in this paper. In contrast to conventional similar-resonator bandstop filters that employ odd multiples of 90-degree impedance inverters between resonators, the proposed design technique enables filters with through-line length restricted to only that which is required to obtain a desired coupling coefficient magnitude between a resonator and the through-line. Both even-and odd-order designs are shown to verify the concept. A 4th-order microstrip prototype with 45 degrees of through-line length per resonator was fabricated, measured, and compared to two conventional designs. It has half the through-line length of conventional designs. C1 [Naglich, Eric J.; Guyette, Andrew C.; Shin, Sanghoon] US Naval Res Lab, Washington, DC 20375 USA. RP Naglich, EJ (reprint author), US Naval Res Lab, Washington, DC 20375 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 0149-645X BN 978-1-4799-8275-2 J9 IEEE MTT S INT MICR PY 2015 PG 4 WC Computer Science, Theory & Methods; Engineering, Electrical & Electronic; Physics, Applied SC Computer Science; Engineering; Physics GA BE3HO UT WOS:000370722900036 ER PT S AU Lou, JW Fatemi, FK Cranch, GA AF Lou, Janet W. Fatemi, Fredrik K. Cranch, Geoffrey A. GP IEEE TI Remote Atomic Vapor Magnetometer with Sub-pT Resolution Operating at Ambient Temperature SO 2015 JOINT CONFERENCE OF THE IEEE INTERNATIONAL FREQUENCY CONTROL SYMPOSIUM & THE EUROPEAN FREQUENCY AND TIME FORUM (FCS) SE IEEE International Frequency Control Symposium LA English DT Proceedings Paper CT Joint Conference of the IEEE International Frequency Control Symposium / European Frequency and Time Forum (FCS) CY APR 12-16, 2015 CL Denver, CO SP IEEE, UFFC, EFTF DE atomic vapor magnetometer; remote operation; vapor cell ID RELAXATION; CESIUM AB We have designed and characterized a Cesium vapor cell magnetometry system specifically aimed at meeting the challenges of remote interrogation. Standard single-mode telecom optical fibers are used for optical delivery and collection. The additional noise contribution due to optical polarization drift during propagation is mitigated by polarization and modal walkoff. We show that it is possible to obtain as low as 0.1 pT/Hz(1/2) resolution at 1 Hz without temperature control over the ambient temperature range of -5 to 30 degrees C. C1 [Lou, Janet W.] Sotera Def Solut Inc, Div C4ISR, Columbia, MD USA. [Fatemi, Fredrik K.; Cranch, Geoffrey A.] US Naval Res Lab, Opt Sci Div, Washington, DC USA. RP Lou, JW (reprint author), Sotera Def Solut Inc, Div C4ISR, Columbia, MD USA. NR 5 TC 0 Z9 0 U1 3 U2 3 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 1075-6787 BN 978-1-4799-8866-2 J9 P IEEE INT FREQ CONT PY 2015 BP 90 EP 93 PG 4 WC Engineering, Electrical & Electronic; Physics, Applied; Telecommunications SC Engineering; Physics; Telecommunications GA BE3DU UT WOS:000370553200018 ER PT J AU Mungan, CE AF Mungan, Carl E. TI Identical Distinguishable Gas Particles in the Real World SO RESONANCE-JOURNAL OF SCIENCE EDUCATION LA English DT Article DE Identical; indistinguishable; classical; quantum ID ENTROPY AB In undergraduate courses in statistical or quantum mechanics, students are exposed to quantum and classical particles that are described as being identical or indistinguishable. It is difficult to appreciate this terminology unless real-world examples are given to illustrate the different possibilities. In particular, while it is easy to think of systems of identical indistinguishable particles or of nonidentical distinguishable particles, it requires more care to identify a gas of identical distinguishable particles. C1 [Mungan, Carl E.] US Naval Acad, Phys, Annapolis, MD 21402 USA. RP Mungan, CE (reprint author), US Naval Acad, Dept Phys, Annapolis, MD 21402 USA. EM mungan@usna.edu NR 9 TC 0 Z9 0 U1 0 U2 0 PU INDIAN ACAD SCIENCES PI BANGALORE PA C V RAMAN AVENUE, SADASHIVANAGAR, P B #8005, BANGALORE 560 080, INDIA SN 0971-8044 EI 0973-712X J9 RESONANCE JI Resonance PD JAN PY 2015 VL 20 IS 1 BP 44 EP 46 PG 3 WC Education, Scientific Disciplines SC Education & Educational Research GA DF2HG UT WOS:000371162600005 ER PT S AU Affouda, CA Lumb, MP Bennett, MF Schmieder, KJ Gonzalez, M Yakes, MK Walters, RJ AF Affouda, Chaffra A. Lumb, Matthew P. Bennett, Mitchell F. Schmieder, Kenneth J. Gonzalez, Maria Yakes, Michael K. Walters, Robert J. GP IEEE TI Effect of Carrier Confinement and Doping in Quantum Well Tunnel Junctions SO 2015 IEEE 42ND PHOTOVOLTAIC SPECIALIST CONFERENCE (PVSC) SE IEEE Photovoltaic Specialists Conference LA English DT Proceedings Paper CT IEEE 42nd Photovoltaic Specialist Conference (PVSC) CY JUN 14-19, 2015 CL New Orleans, LA SP IEEE AB Quantum well tunnel junctions have attractive properties for the design of multi-junction solar cells and represent a good alternative to homo-junction tunnel diodes. Tunnel junctions based on InAlAs quantum wells were grown strain balanced on InP with varying well and barrier thicknesses. We characterized their current voltage characteristics and found that devices with thicker well and thinner tunnel barrier performed best provided the doping profile across the structure is accurately controlled. We explain the effects of barrier and well thicknesses due to quantum confinement as well as doping using a Poisson-Schrodinger model coupled to a non-local tunneling model that were implemented in a numerical drift-diffusion solver. C1 [Affouda, Chaffra A.; Schmieder, Kenneth J.; Yakes, Michael K.; Walters, Robert J.] Naval Res Lab, Washington, DC 20375 USA. [Lumb, Matthew P.] George Washington Univ, Washington, DC 20037 USA. [Bennett, Mitchell F.; Gonzalez, Maria] Sotera Def Solut, Annapolis Jct, MD 20701 USA. RP Affouda, CA (reprint author), Naval Res Lab, Washington, DC 20375 USA. NR 7 TC 0 Z9 0 U1 3 U2 3 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 0160-8371 BN 978-1-4799-7944-8 J9 IEEE PHOT SPEC CONF PY 2015 PG 3 WC Energy & Fuels; Engineering, Electrical & Electronic SC Energy & Fuels; Engineering GA BE2SX UT WOS:000369992902153 ER PT S AU Bailey, CG Forbes, DV Lumb, MP Hoheisel, R Gonzalez, M Hubbard, SM Hirst, LC Schmieder, K Yakes, MK Jenkins, PP Walters, RJ AF Bailey, C. G. Forbes, D. V. Lumb, M. P. Hoheisel, R. Gonzalez, M. Hubbard, S. M. Hirst, L. C. Schmieder, K. Yakes, M. K. Jenkins, P. P. Walters, R. J. GP IEEE TI Investigation of InAlGaAs/InGaAs Quantum Well Solar Cells SO 2015 IEEE 42ND PHOTOVOLTAIC SPECIALIST CONFERENCE (PVSC) SE IEEE Photovoltaic Specialists Conference LA English DT Proceedings Paper CT IEEE 42nd Photovoltaic Specialist Conference (PVSC) CY JUN 14-19, 2015 CL New Orleans, LA SP IEEE DE QWs; InAlGaAs; solar cells; carrier escape; space environment; electric field AB An investigating into InAlGaAs/InGaAs quantum well solar cells (QWSCs) is presented. The QWSCs consisted of sixteen layers of 5 nm InGaAs QWs / 10 nm InAlGaAs barriers were embedded into the i-region of a 1.0 eV InAlGaAs solar cell, and the EQE results were compared to a 1.0 eV InAlGaAs control solar cell. We also report the results of a unique infrared illumination experiment in which the electric field is probed and compared to the theoretical electric field at varying locations within the intrinsic region. We then evaluate 3 MeV proton irradiation of the devices. Due to the specific design of the stuctures in this study, QW devices were found to be less radiation tolerant than the control InAlGaAs devices. In addition, 2 samples with varying barrier thicknesses are compared to extract information regarding the escape mechanisms of carriers in these QWs. C1 [Bailey, C. G.] Old Dominion Univ, Norfolk, VA 23529 USA. [Forbes, D. V.; Hubbard, S. M.] Rochester Inst Technol, NanoPower Res Labs, Rochester, NY 14623 USA. [Lumb, M. P.; Hoheisel, R.] George Washington Univ, Washington, DC USA. [Gonzalez, M.] Sotera Def Solut, Annapolis Jct, MD 20701 USA. [Yakes, M. K.; Jenkins, P. P.; Walters, R. J.] US Naval Res Lab, Washington, DC USA. RP Bailey, CG (reprint author), Old Dominion Univ, Norfolk, VA 23529 USA. NR 12 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 0160-8371 BN 978-1-4799-7944-8 J9 IEEE PHOT SPEC CONF PY 2015 PG 3 WC Energy & Fuels; Engineering, Electrical & Electronic SC Energy & Fuels; Engineering GA BE2SX UT WOS:000369992902154 ER PT S AU Bennett, MF Gonzalez, M Lumb, MP Yakes, MK Schmieder, KJ Tomasulo, S Abell, J Meyer, JR Walters, RJ AF Bennett, Mitchell F. Gonzalez, Maria Lumb, Matthew P. Yakes, Michael K. Schmieder, Kenneth J. Tomasulo, Stephanie Abell, Joshua Meyer, Jerry R. Walters, Robert J. GP IEEE TI Development Of Wet Etch Processing for InxAl1-x AsySb1-y Solar Cells Grown on InP SO 2015 IEEE 42ND PHOTOVOLTAIC SPECIALIST CONFERENCE (PVSC) SE IEEE Photovoltaic Specialists Conference LA English DT Proceedings Paper CT IEEE 42nd Photovoltaic Specialist Conference (PVSC) CY JUN 14-19, 2015 CL New Orleans, LA SP IEEE DE fabrication; indium phosphide; III-V semiconductor materials AB Novel III-V multijunction solar cell concentrator devices grown on InP are potential candidates for achieving efficiencies under AM1.5D illumination of over 50%. Controlled fabrication of these structures involves a complete understanding of the interaction of different wet etch chemistries with the numerous combinations of alloys and semiconductor compounds in this material system. Selective etches for contact layer removal and non-selective etches for mesa isolation were studied for potential processing of an InAlAsSb device lattice-matched to InP. In addition to determining global etch rates for several materials grown on InP, two wet etch chemistries were analyzed in order to optimize a highly selective etch for effective lattice-matched InGaAs contact layer removal. We show that a citric acid-based solution etching of the InGaAs layer resulted in a lateral undercut that was five times greater than etching with a methylsuccinic acid-based solution. C1 [Bennett, Mitchell F.; Gonzalez, Maria; Lumb, Matthew P.; Yakes, Michael K.; Schmieder, Kenneth J.; Tomasulo, Stephanie; Abell, Joshua; Meyer, Jerry R.; Walters, Robert J.] Naval Res Lab, Washington, DC 20375 USA. [Bennett, Mitchell F.; Gonzalez, Maria] Sotera Def Solut, Herndon, VA 20171 USA. [Lumb, Matthew P.] George Washington Univ, Washington, DC 20052 USA. RP Bennett, MF (reprint author), Naval Res Lab, Washington, DC 20375 USA. NR 11 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 978-1-4799-7944-8 J9 IEEE PHOT SPEC CONF PY 2015 PG 4 WC Energy & Fuels; Engineering, Electrical & Electronic SC Energy & Fuels; Engineering GA BE2SX UT WOS:000369992903090 ER PT S AU Gonzalez, M Lumb, MP Hirst, LC Tomasulo, S Tischler, JG Yoon, W Abell, J Vurgaftman, I Bennett, MF Schmieder, KJ Kotulak, NA Yakes, MK Meyer, JR Walters, RJ AF Gonzalez, Maria Lumb, Matthew P. Hirst, Louise C. Tomasulo, Stephanie Tischler, Joseph G. Yoon, Woojun Abell, Josh Vurgaftman, Igor Bennett, Mitchell F. Schmieder, Kenneth J. Kotulak, Nicole A. Yakes, Michael K. Meyer, Jerry R. Walters, Robert J. GP IEEE TI Rapid Thermal Annealing of InAlAsSb Lattice-Matched to InP for Top Cell Applications SO 2015 IEEE 42ND PHOTOVOLTAIC SPECIALIST CONFERENCE (PVSC) SE IEEE Photovoltaic Specialists Conference LA English DT Proceedings Paper CT IEEE 42nd Photovoltaic Specialist Conference (PVSC) CY JUN 14-19, 2015 CL New Orleans, LA SP IEEE DE Indium phosphide; Multi-junction; InAlAsSb; Rapid Thermal Annealing; Urbach tail AB The effect of rapid thermal annealing on the optical properties of InxAl(1-x)As(y)Sb(1-y) was analyzed and compared to that for In0.52Al0.48As. Initial ellipsometry and photoluminescence experiments performed before the annealing indicate the presence of a low energy Urbach tail in the absorption spectrum. Rapid thermal annealing produces a blue-shift in the PL emission when annealed at 650 degrees C for 60s and a decrease in the full-width-half-maximum, which originates from a reduction of the emission from the longer wavelength states. For the In0.52Al0.48As, the emission energy and the full-width-half-maximum remain constant during the annealing study. The elimination of sub-bandgap states in InxAl1-xAsySb1-y is critical for achieving a realistic path towards high efficiency multi-junction cells lattice-matched to InP. C1 [Gonzalez, Maria; Bennett, Mitchell F.] Sotera Def Solut, Annapolis, MD 20701 USA. [Gonzalez, Maria; Lumb, Matthew P.; Hirst, Louise C.; Tomasulo, Stephanie; Tischler, Joseph G.; Yoon, Woojun; Abell, Josh; Vurgaftman, Igor; Bennett, Mitchell F.; Schmieder, Kenneth J.; Kotulak, Nicole A.; Yakes, Michael K.; Meyer, Jerry R.; Walters, Robert J.] Naval Res Lab, Washington, DC 20375 USA. [Lumb, Matthew P.] George Washington Univ, Washington, DC 20007 USA. RP Gonzalez, M (reprint author), Sotera Def Solut, Annapolis, MD 20701 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 SN 0160-8371 BN 978-1-4799-7944-8 J9 IEEE PHOT SPEC CONF PY 2015 PG 4 WC Energy & Fuels; Engineering, Electrical & Electronic SC Energy & Fuels; Engineering GA BE2SX UT WOS:000369992901108 ER PT S AU Haegel, NM Ke, CW Taha, H Guthrey, H Fetzer, CM King, R AF Haegel, N. M. Ke, Chi-Wen Taha, Hesham Guthrey, Harvey Fetzer, C. M. King, Richard GP IEEE TI Cross-sectional Transport Imaging in a Multijunction Solar Cell SO 2015 IEEE 42ND PHOTOVOLTAIC SPECIALIST CONFERENCE (PVSC) SE IEEE Photovoltaic Specialists Conference LA English DT Proceedings Paper CT IEEE 42nd Photovoltaic Specialist Conference (PVSC) CY JUN 14-19, 2015 CL New Orleans, LA SP IEEE DE cathodoluminescence; diffusion; luminescent coupling; multijunction solar cell; transport imaging ID EFFICIENCY AB Combining highly localized electron-beam excitation at a point with the spatial resolution capability of optical near-field imaging, we have imaged carrier transport in a cross-sectioned multijunction (GaInP/GaInAs/Ge) solar cell. We image energy transport associated with carrier diffusion throughout the full width of the middle (GaInAs) cell and luminescent coupling from point excitation in the top cell GaInP to the middle cell. Supporting cathodoluminescence and near-field photoluminescence measurements demonstrate excitation-dependent Fermi level splitting effects that influence cross-sectioned spectroscopy results as well as transport limitations on the spatial resolution of cross-sectional measurements. C1 [Haegel, N. M.; Guthrey, Harvey] Natl Renewable Energy Lab, Golden, CO 80401 USA. [Ke, Chi-Wen] Naval Postgrad Sch, Monterey, CA 93943 USA. [Taha, Hesham] Nanon Imaging Ltd, Jerusalem, Israel. [Fetzer, C. M.; King, Richard] Boeing Spectrolab, Sylmar, CA 91342 USA. RP Haegel, NM (reprint author), Natl Renewable Energy Lab, Golden, CO 80401 USA. NR 8 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 978-1-4799-7944-8 J9 IEEE PHOT SPEC CONF PY 2015 PG 3 WC Energy & Fuels; Engineering, Electrical & Electronic SC Energy & Fuels; Engineering GA BE2SX UT WOS:000369992902160 ER PT S AU Hausgen, PE Bradshaw, GK Wilt, D Jenkins, PP AF Hausgen, Paul E. Bradshaw, Geoffrey K. Wilt, David Jenkins, Phillip P. GP IEEE TI Flight Results for the Passive MISSE 7 Coatings and Coverglass Panel Experiment SO 2015 IEEE 42ND PHOTOVOLTAIC SPECIALIST CONFERENCE (PVSC) SE IEEE Photovoltaic Specialists Conference LA English DT Proceedings Paper CT IEEE 42nd Photovoltaic Specialist Conference (PVSC) CY JUN 14-19, 2015 CL New Orleans, LA SP IEEE DE coverglass; ESD coatings; anti-reflection coatings; ultraviolet radiation rejection; solar cells AB The Coverglass and Coatings Panel flight experiment was flown on the International Space Station. A total of 48 passive samples were flight tested. The samples included new solar cell coverglass material, coverglass replacement technology, new transparent conductive coatings, ultraviolet rejection coatings, and anti-reflection coatings. The experiment was returned to earth after 543 days on-orbit. Pre-flight and post-flight transmission measurements were used to assess the effect of the space environment on the samples. A number of new coverglass and coatings technologies for space solar cells have been shown to perform well in a Low Earth Orbit. Given the proven performance, these technologies are potential candidates for use on operational space solar arrays. C1 [Hausgen, Paul E.; Bradshaw, Geoffrey K.; Wilt, David] Air Force Res Lab, Space Vehicles Directorate, Kirtland AFB, NM 87117 USA. [Jenkins, Phillip P.] Naval Res Lab, Washington, DC 20375 USA. RP Hausgen, PE (reprint author), Air Force Res Lab, Space Vehicles Directorate, Kirtland AFB, NM 87117 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 0160-8371 BN 978-1-4799-7944-8 J9 IEEE PHOT SPEC CONF PY 2015 PG 6 WC Energy & Fuels; Engineering, Electrical & Electronic SC Energy & Fuels; Engineering GA BE2SX UT WOS:000369992901045 ER PT S AU Hirst, LC Yakes, MK Affouda, CA Bailey, CG Tischler, JGS Esmaielpour, H Whiteside, VR Sellers, IR Lumb, MP Forbes, DV Walters, RJ AF Hirst, Louise C. Yakes, Michael K. Affouda, Chaffra A. Bailey, Christopher G. Tischler, Joseph G. S. Esmaielpour, Hamidrza Whiteside, Vincent R. Sellers, Ian R. Lumb, Matthew P. Forbes, David V. Walters, Robert J. GP IEEE TI Hot-carrier effects in type II heterostructures SO 2015 IEEE 42ND PHOTOVOLTAIC SPECIALIST CONFERENCE (PVSC) SE IEEE Photovoltaic Specialists Conference LA English DT Proceedings Paper CT IEEE 42nd Photovoltaic Specialist Conference (PVSC) CY JUN 14-19, 2015 CL New Orleans, LA SP IEEE DE Hot-carrier solar cell; type II band alignment; InP; InGaAsP ID QUANTUM-WELLS; SOLAR-CELLS; EFFICIENCY AB Hot-carrier solar cells have high theoretical limiting efficiency however, absorber materials with slow carrier thermalization remain a development barrier for these devices. In previous studies, charge separation in core-shell colloidal quantum dots has been shown to result in slow carrier relaxation. Charge separation also occurs in III-V heterostructures with type-II band alignments. We characterize hot-carrier effects in InAIAs/InP and InAIAs/InGaAsP quantum well structures, with type-II and quasi-type-II band alignments respectively. InGaAsP is identified as a promising hot-carrier absorber candidate, with thermalization coefficient 1.77 +/- 0.12 W.K-1.cm(-2), corresponding to limiting solar conversion efficiency >42%, under 2000X. C1 [Hirst, Louise C.; Yakes, Michael K.; Affouda, Chaffra A.; Tischler, Joseph G. S.; Lumb, Matthew P.; Walters, Robert J.] US Naval Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA. [Bailey, Christopher G.] Old Dominion Univ, Norfolk, VA 23529 USA. [Esmaielpour, Hamidrza; Whiteside, Vincent R.; Sellers, Ian R.] Univ Oklahoma, Norman, OK 73019 USA. [Lumb, Matthew P.] George Washington Univ, Washington, DC 20037 USA. [Forbes, David V.] Rochester Inst Technol, NanoPower Res Labs, Rochester, NY 14623 USA. RP Hirst, LC (reprint author), US Naval Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA. NR 19 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 978-1-4799-7944-8 J9 IEEE PHOT SPEC CONF PY 2015 PG 3 WC Energy & Fuels; Engineering, Electrical & Electronic SC Energy & Fuels; Engineering GA BE2SX UT WOS:000369992902191 ER PT S AU Hoheisel, R Walters, RJ Bett, AW AF Hoheisel, R. Walters, R. J. Bett, A. W. GP IEEE TI Low Temperature Effects in Photovoltaic Devices for Deep Space Missions SO 2015 IEEE 42ND PHOTOVOLTAIC SPECIALIST CONFERENCE (PVSC) SE IEEE Photovoltaic Specialists Conference LA English DT Proceedings Paper CT IEEE 42nd Photovoltaic Specialist Conference (PVSC) CY JUN 14-19, 2015 CL New Orleans, LA SP IEEE ID SILICON SOLAR-CELLS; RECOMBINATION; JUNCTIONS; MODEL AB Experimental results of solar cells tested under deep space conditions are presented. The impact of low intensity and low temperature (LILT) conditions on the performance characteristics, in particular the fill factor, is discussed. The paper closes with a review of the elimination and mitigation of LILT effects by dedicated solar cell device design. C1 [Hoheisel, R.] George Washington Univ, Washington, DC USA. [Hoheisel, R.; Bett, A. W.] Fraunhofer Inst Solar Energy Syst, Freiburg, Germany. [Walters, R. J.] US Naval Res Lab, Washington, DC USA. RP Hoheisel, R (reprint author), George Washington Univ, Washington, DC USA. NR 22 TC 0 Z9 0 U1 0 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 0160-8371 BN 978-1-4799-7944-8 J9 IEEE PHOT SPEC CONF PY 2015 PG 5 WC Energy & Fuels; Engineering, Electrical & Electronic SC Energy & Fuels; Engineering GA BE2SX UT WOS:000369992900076 ER PT S AU Kotulak, NA Lumb, MP Yakes, MK Schmieder, KJ Gonzalez, M Ebert, C Walters, RJ AF Kotulak, Nicole A. Lumb, Matthew P. Yakes, Michael K. Schmieder, Kenneth J. Gonzalez, Maria Ebert, Chris Walters, Robert J. GP IEEE TI Native Oxide and Optical Constant Determination of InP Lattice-Matched Quaternary Materials using Variable Angle Spectroscopic Ellipsometry SO 2015 IEEE 42ND PHOTOVOLTAIC SPECIALIST CONFERENCE (PVSC) SE IEEE Photovoltaic Specialists Conference LA English DT Proceedings Paper CT IEEE 42nd Photovoltaic Specialist Conference (PVSC) CY JUN 14-19, 2015 CL New Orleans, LA SP IEEE DE III-V semiconductor materials; absorption; complex index of refraction; ellipsometry; native oxide; optical constants; photovoltaic cells; quaternary ID EFFICIENCY AB Quaternary materials lattice-matched to InP have been examined using variable angle spectroscopic ellipsometry (VASE). The optical constants of InGaAsP and InAlGaAs, lattice matched to InP with bandgaps of 1.2eV, have been determined. The native oxide layer of the materials was simulated using a weighted Bruggeman effective medium approximation (EMA) approach comprising the known optical constants of the native oxides of the end-point materials. The extracted optical constants from VASE measurements are compared with interpolated values from literature data, in order to assess the effectiveness of such an approach for quaternary alloys. Additionally, the absorption coefficients of InGaAsP and InAlGaAs are compared, the results of which can be used to evaluate the effectiveness of both material systems in high efficiency multijunction (MJ) photovoltaic (PV) devices. C1 [Kotulak, Nicole A.; Lumb, Matthew P.; Yakes, Michael K.; Schmieder, Kenneth J.; Gonzalez, Maria; Walters, Robert J.] US Naval Res Lab, Washington, DC 20375 USA. [Ebert, Chris] Veeco MOCVD, Somerset, NJ 08873 USA. RP Kotulak, NA (reprint author), US Naval Res Lab, Washington, DC 20375 USA. 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 0160-8371 BN 978-1-4799-7944-8 J9 IEEE PHOT SPEC CONF PY 2015 PG 4 WC Energy & Fuels; Engineering, Electrical & Electronic SC Energy & Fuels; Engineering GA BE2SX UT WOS:000369992902040 ER PT S AU Lorentzen, JR Scheiman, DA Hoheisel, R Walters, RJ Jenkins, PP AF Lorentzen, J. R. Scheiman, D. A. Hoheisel, R. Walters, R. J. Jenkins, P. P. GP IEEE TI Impact of Solar Simulator Spectrum on Multi-Junction Solar Cell Measurement SO 2015 IEEE 42ND PHOTOVOLTAIC SPECIALIST CONFERENCE (PVSC) SE IEEE Photovoltaic Specialists Conference LA English DT Proceedings Paper CT IEEE 42nd Photovoltaic Specialist Conference (PVSC) CY JUN 14-19, 2015 CL New Orleans, LA SP IEEE DE space solar cells; multi-junction solar cell; solar simulator; spectrum AB Accurate laboratory measurement of the IV parameters of multi-junction (MJ) solar cells is highly dependent on the incident spectrum. This paper examines the influence of simulator spectrum on MJ solar cell measurements through the use of a multi-zone solar simulator capable of varying light output on each MJ subcell independently. It is shown through solar simulator spectrum offset that standard characterization methodology may result in significant error in IV parameter measurement resulting in over or underestimation of cell performance. C1 [Lorentzen, J. R.; Scheiman, D. A.; Walters, R. J.; Jenkins, P. P.] US Naval Res Lab, Washington, DC 20375 USA. [Hoheisel, R.] George Washington Univ, Washington, DC 20037 USA. RP Lorentzen, JR (reprint author), US Naval Res Lab, 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 SN 0160-8371 BN 978-1-4799-7944-8 J9 IEEE PHOT SPEC CONF PY 2015 PG 3 WC Energy & Fuels; Engineering, Electrical & Electronic SC Energy & Fuels; Engineering GA BE2SX UT WOS:000369992901030 ER PT S AU Lumb, MP Meitl, M Fisher, B Burroughs, S Schmieder, KJ Gonzalez, M Yakes, MK Mack, S Hoheisel, R Bennett, MF Ebert, CW Forbes, DV Bailey, CG Walters, RJ AF Lumb, Matthew P. Meitl, Matthew Fisher, Brent Burroughs, Scott Schmieder, Kenneth J. Gonzalez, Maria Yakes, Michael K. Mack, Shawn Hoheisel, Raymond Bennett, Mitchell F. Ebert, Chris W. Forbes, David V. Bailey, Christopher G. Walters, Robert J. GP IEEE TI Transfer-Printing for the Next Generation of Multi-junction Solar Cells SO 2015 IEEE 42ND PHOTOVOLTAIC SPECIALIST CONFERENCE (PVSC) SE IEEE Photovoltaic Specialists Conference LA English DT Proceedings Paper CT IEEE 42nd Photovoltaic Specialist Conference (PVSC) CY JUN 14-19, 2015 CL New Orleans, LA SP IEEE DE Mechanical Stacking; Photovoltaic cells; Transfer printing ID EFFICIENCY AB Transfer-printing is a key enabling technology for the realization of ultra-high-efficiency, mechanically stacked III-V solar cells with low cost. In this paper, we present the latest results for microscale CPV cells grown on GaAs and InP substrates for ultra-high-efficiency, four-terminal, mechanically stacked architectures. We describe the latest findings from a combination of modeling, growth, characterization and processing of tunnel junctions, single junction and multijunction solar cells, with the ultimate goal of using transfer-printing to produce the first solar cell with 50% conversion efficiency. C1 [Lumb, Matthew P.; Hoheisel, Raymond] George Washington Univ, Washington, DC 20007 USA. [Lumb, Matthew P.; Schmieder, Kenneth J.; Gonzalez, Maria; Yakes, Michael K.; Mack, Shawn; Hoheisel, Raymond; Bennett, Mitchell F.; Bailey, Christopher G.; Walters, Robert J.] Naval Res Lab, Washington, DC 20375 USA. [Meitl, Matthew; Fisher, Brent; Burroughs, Scott] Semprius Inc, Durham, NC 27713 USA. [Gonzalez, Maria] Sotera Def Solut, Annapolis Jct, MD 20701 USA. [Ebert, Chris W.] VEECO Proc Equipment Inc, Somerset, NJ 08873 USA. [Forbes, David V.] Rochester Inst Technol, Rochester, NY 14623 USA. RP Lumb, MP (reprint author), George Washington Univ, Washington, DC 20007 USA. RI Mack, Shawn/F-4008-2011 OI Mack, Shawn/0000-0001-6696-0483 NR 9 TC 0 Z9 0 U1 5 U2 6 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 0160-8371 BN 978-1-4799-7944-8 J9 IEEE PHOT SPEC CONF PY 2015 PG 6 WC Energy & Fuels; Engineering, Electrical & Electronic SC Energy & Fuels; Engineering GA BE2SX UT WOS:000369992902106 ER PT S AU Maximenko, SI Walters, RJ AF Maximenko, Sergey I. Walters, Robert J. GP IEEE TI Minority Carrier Diffusion Length Measurements in Solar Cells by Electron Beam Induced Current SO 2015 IEEE 42ND PHOTOVOLTAIC SPECIALIST CONFERENCE (PVSC) SE IEEE Photovoltaic Specialists Conference LA English DT Proceedings Paper CT IEEE 42nd Photovoltaic Specialist Conference (PVSC) CY JUN 14-19, 2015 CL New Orleans, LA SP IEEE DE Diffusion length; EBIC; photovoltaic cells; simulation ID SEMICONDUCTORS AB In this paper, a comparison of established analytical models (Luke and Bonard) for analysis of electron beam induced current profiles across p-n junction solar cell structures is presented. Simulation results are presented for two typical cases; when the diffusion length (L) is comparable to or longer than the base thickness (thin base), and when L is shorter than the device thickness (thick base). In addition, the experimental profiles for both cases are analyzed using different analytical models. Simulation results show that while the Bonard and Luke models have a good agreement for both thin and thick base conditions, the Luke model more closely agrees with experimental profiles for the thin base case. C1 [Maximenko, Sergey I.; Walters, Robert J.] Naval Res Lab, Washington, DC 20375 USA. RP Maximenko, SI (reprint author), Naval Res Lab, Washington, DC 20375 USA. NR 15 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 978-1-4799-7944-8 J9 IEEE PHOT SPEC CONF PY 2015 PG 4 WC Energy & Fuels; Engineering, Electrical & Electronic SC Energy & Fuels; Engineering GA BE2SX UT WOS:000369992901219 ER PT S AU Sato, S Schmieder, KJ Hubbard, SM Forbes, DV Warner, JH Ohshima, T Walters, RJ AF Sato, Shin-ichiro Schmieder, Kenneth J. Hubbard, Seth M. Forbes, David V. Warner, Jeffery H. Ohshima, Takeshi Walters, Robert J. GP IEEE TI Defects in GaAs Solar Cells with InAs Quantum Dots Created by Proton Irradiation SO 2015 IEEE 42ND PHOTOVOLTAIC SPECIALIST CONFERENCE (PVSC) SE IEEE Photovoltaic Specialists Conference LA English DT Proceedings Paper CT IEEE 42nd Photovoltaic Specialist Conference (PVSC) CY JUN 14-19, 2015 CL New Orleans, LA SP IEEE DE III-V semiconductor materials; Quantum dots; PN junctions; Radiation effects ID ION IRRADIATION; ELECTRON; SPECTROSCOPY; JUNCTION; DAMAGE AB GaAs pn-junction diodes with embedded InAs quantum dots (QDs) are irradiated with protons and the generated deep level traps are investigated using Deep Level Transient Spectroscopy (DLTS). The results are compared to GaAs pn-junction diodes without QDs in order to identify the origin of the deep level traps. The fluence dependence of trap density is investigated, and it is shown that majority carrier (electron) traps induced by irradiation increase in proportion to the fluence whereas the EL2 trap, which appears before irradiation, is not affected by irradiation. In addition, 0.14 eV minority carrier (hole) traps in the QD layer are found by using forward biased injection technique and it is shown that this unique trap is unaffected by irradiation. Electron and hole emission from QD levels are also discussed. C1 [Sato, Shin-ichiro; Ohshima, Takeshi] Japan Atom Energy Agcy, Quantum Beam Sci Ctr, Takasaki, Gumma 3701292, Japan. [Sato, Shin-ichiro; Schmieder, Kenneth J.; Warner, Jeffery H.; Walters, Robert J.] US Naval Res Lab, Optelect & Radiat Effects Branch, Washington, DC 20375 USA. [Hubbard, Seth M.; Forbes, David V.] Rochester Inst Technol, NanoPower Res Labs, Rochester, NY 14623 USA. RP Sato, S (reprint author), Japan Atom Energy Agcy, Quantum Beam Sci Ctr, Takasaki, Gumma 3701292, Japan. NR 11 TC 0 Z9 0 U1 1 U2 2 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 0160-8371 BN 978-1-4799-7944-8 J9 IEEE PHOT SPEC CONF PY 2015 PG 5 WC Energy & Fuels; Engineering, Electrical & Electronic SC Energy & Fuels; Engineering GA BE2SX UT WOS:000369992901051 ER PT S AU Scheiman, DA Lorentzen, JR Hoheisel, R Messenger, SR Jenkins, PP AF Scheiman, D. A. Lorentzen, J. R. Hoheisel, R. Messenger, S. R. Jenkins, P. P. GP IEEE TI Temperature Dependence of Triple Junction Solar Cells After High Fluence Irradiations SO 2015 IEEE 42ND PHOTOVOLTAIC SPECIALIST CONFERENCE (PVSC) SE IEEE Photovoltaic Specialists Conference LA English DT Proceedings Paper CT IEEE 42nd Photovoltaic Specialist Conference (PVSC) CY JUN 14-19, 2015 CL New Orleans, LA SP IEEE DE space solar cells; radiation damage; multi-junction; solar cell; temperature dependence AB The NRL TacSat-4 Satellite was launched into a highly elliptical orbit on September 27th 2011. The solar panels are populated with Emcore ATJ cells. The solar panel was predicted to degrade 25% over the first year. Flight data show that the actual degradation is exceeding this prediction. Ground testing was conducted to more accurately determine the degradation and end-of-life (EOL) parameters. This consisted of irradiations of Emcore (SoIAero) ATJ cells with 3 MeV rotons at 8 different fluences ranging from 1 x 10(11) to 1 X 10(15) p/cm(2) greater than any previously irradiated testing by orders of magnitude. This paper contains details related to the temperature coefficients of these cells and how they correlate to the Displacement Damage Dose (DDD). This data will help in predictions of solar panel performance in high radiation orbits. C1 [Scheiman, D. A.; Lorentzen, J. R.; Jenkins, P. P.] US Naval Res Lab, Washington, DC 20375 USA. [Hoheisel, R.] George Washington Univ, Washington, DC 20037 USA. [Messenger, S. R.] Univ Maryland Baltimore Cty, Baltimore, MD 21250 USA. RP Scheiman, DA (reprint author), US Naval Res Lab, Washington, DC 20375 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 SN 0160-8371 BN 978-1-4799-7944-8 J9 IEEE PHOT SPEC CONF PY 2015 PG 4 WC Energy & Fuels; Engineering, Electrical & Electronic SC Energy & Fuels; Engineering GA BE2SX UT WOS:000369992901049 ER PT S AU Schmieder, KJ Lumb, MP Yakes, MK Gonzalez, M Cunningham, PD Khachatrian, A Bennett, MF Hirst, LC Kotulak, NA Pulwin, Z Bailey, CG Hubbard, SM Melinger, JS Ebertt, CW Walters, RJ AF Schmieder, Kenneth J. Lumb, Matthew P. Yakes, Michael K. Gonzalez, Maria Cunningham, Paul D. Khachatrian, Ani Bennett, Mitchell F. Hirst, Louise C. Kotulak, Nicole A. Pulwin, Ziggy Bailey, Christopher G. Hubbard, Seth M. Melinger, Joseph S. Ebertt, Chris W. Walters, Robert J. GP IEEE TI Analysis of GaAs Photovoltaic Device Losses at High MOCVD Growth Rates SO 2015 IEEE 42ND PHOTOVOLTAIC SPECIALIST CONFERENCE (PVSC) SE IEEE Photovoltaic Specialists Conference LA English DT Proceedings Paper CT IEEE 42nd Photovoltaic Specialist Conference (PVSC) CY JUN 14-19, 2015 CL New Orleans, LA SP IEEE DE III-V semiconductor materials; photovoltaic cells; semiconductor growth AB Gallium arsenide material has been deposited via metal organic chemical vapor deposition (MOCVD) at growth rates varying between 14 mu m/hr and 56 mu m/hr. Photovoltaic device results indicate a 6-7% relative decrease in efficiency between 14 and 56 mu m/hr GaAs solar cells, due to a reduction in short-circuit current and open-circuit voltage. By simulating the experimental characterization data, it is established that performance losses are associated with rear surface recombination velocity and Shockley-Read-Hall lifetime. The relative impact of these loss mechanisms will be quantified and conclude with discussions on their mitigation. C1 [Schmieder, Kenneth J.; Lumb, Matthew P.; Yakes, Michael K.; Gonzalez, Maria; Cunningham, Paul D.; Khachatrian, Ani; Bennett, Mitchell F.; Hirst, Louise C.; Kotulak, Nicole A.; Melinger, Joseph S.; Walters, Robert J.] US Naval Res Lab, Washington, DC 20375 USA. [Pulwin, Ziggy; Ebertt, Chris W.] Veeco MOCVD, Somerset, NJ 08873 USA. [Lumb, Matthew P.] George Washington Univ, Washington, DC 20052 USA. [Gonzalez, Maria; Khachatrian, Ani; Bennett, Mitchell F.] Sotera Def Solut, Annapolis Jct, MD 20701 USA. [Bailey, Christopher G.] Old Dominion Univ, Elect & Comp Engn, Norfolk, VA 23529 USA. [Hubbard, Seth M.] Rochester Inst Technol, NanoPower Res Labs, Rochester, NY 14623 USA. RP Schmieder, KJ (reprint author), US Naval Res Lab, Washington, DC 20375 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 SN 0160-8371 BN 978-1-4799-7944-8 J9 IEEE PHOT SPEC CONF PY 2015 PG 3 WC Energy & Fuels; Engineering, Electrical & Electronic SC Energy & Fuels; Engineering GA BE2SX UT WOS:000369992901140 ER PT S AU Steiner, MA Lumb, MP Hoheisel, R Geisz, JF France, RM Scheiman, D Walters, RJ Jenkins, PP AF Steiner, Myles A. Lumb, Matthew P. Hoheisel, Raymond Geisz, John F. France, Ryan M. Scheiman, David Walters, Robert J. Jenkins, Phillip P. GP IEEE TI Radiation effects on luminescent coupling in III-V solar cells SO 2015 IEEE 42ND PHOTOVOLTAIC SPECIALIST CONFERENCE (PVSC) SE IEEE Photovoltaic Specialists Conference LA English DT Proceedings Paper CT IEEE 42nd Photovoltaic Specialist Conference (PVSC) CY JUN 14-19, 2015 CL New Orleans, LA SP IEEE DE III-V solar cell; Luminescent coupling; Multijunction solar cell; Radiation hardness AB Advances in the architecture of GaInP solar cells have recently lead to similar to 21% conversion efficiencies under the global spectrum due to high radiative efficiencies, and the resulting strong luminescent coupling in GaInP/GaAs tandems has lead to record dual-junction efficiencies. The suitability of these newer GaInP cells to space applications has not been examined, however. Here we present a study to compare the radiation hardness of rear-heterojunction and more traditional GaInP junctions and the resulting luminescent coupling. Pairs of GaInP/GaAs tandem cells were irradiated with 1 MeV electrons at fluences up to 10(15) e/cm(2). The cells were thoroughly characterized, before and after irradiation, by measuring the quantum efficiency, IV characteristics, electroluminescence and luminescent coupling. We find the luminescent coupling to be unchanged below similar to 1013 e/cm(2), and to decrease to zero by 10(15) e/cm(2). For all fluence levels, the rear heterojunction structure had a higher coupling constant than the front junction structure. Despite these advantages, the efficiency degraded at the same rate for both structures. C1 [Steiner, Myles A.; Geisz, John F.; France, Ryan M.] Natl Renewable Energy Lab, Golden, CO 80401 USA. [Lumb, Matthew P.; Scheiman, David; Walters, Robert J.; Jenkins, Phillip P.] US Naval Res Lab, Washington, DC 20375 USA. [Lumb, Matthew P.; Hoheisel, Raymond] George Washington Univ, Washington, DC 20037 USA. RP Steiner, MA (reprint author), Natl Renewable Energy Lab, Golden, CO 80401 USA. NR 8 TC 0 Z9 0 U1 1 U2 2 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 0160-8371 BN 978-1-4799-7944-8 J9 IEEE PHOT SPEC CONF PY 2015 PG 5 WC Energy & Fuels; Engineering, Electrical & Electronic SC Energy & Fuels; Engineering GA BE2SX UT WOS:000369992900082 ER PT S AU Sun, YB Montgomery, KH Wang, XF Tomasulo, S Lee, ML Bermel, P AF Sun, Yubo Montgomery, Kyle H. Wang, Xufeng Tomasulo, Stephanie Lee, Minjoo Larry Bermel, Peter GP IEEE TI Modeling Wide Bandgap GaInP Photovoltaic Cells For Conversion Efficiencies Up to 16.5% SO 2015 IEEE 42ND PHOTOVOLTAIC SPECIALIST CONFERENCE (PVSC) SE IEEE Photovoltaic Specialists Conference LA English DT Proceedings Paper CT IEEE 42nd Photovoltaic Specialist Conference (PVSC) CY JUN 14-19, 2015 CL New Orleans, LA SP IEEE DE InGaP; modeling; molecular beam epitaxy; n-i-p; wide-bandgap ID SOLAR-CELLS; JUNCTION AB Here we consider how to accurately model and design wide bandgap (E-g = 2.1 eV) GaInP photovoltaic cells. Detailed absorption data for the Ga-rich alloy is obtained by extrapolating literature values for InP and Ga0.5In0.5P. We then combined these values with estimates of carrier lifetime (0.1 ns) and interface recombination (9x10(5) cm/s) to construct detailed electro-optical models. They are found to accurately reproduce the EQE, J(sc), and V-oc observed in published experimental devices. Small discrepancies of 0.1% are caused by slight differences in optical constants and interface recombination. This modeling process illustrates the major sources of loss, namely interface recombination between the emitter and window layer and low bulk minority carrier lifetimes in the active region. An improved design is also proposed, which involves adjusting the doping and thickness of key layers. These findings will help define a path towards increasing the performance of these wide bandgap cells to approach their theoretical limit approximately 16.5%. C1 [Sun, Yubo; Wang, Xufeng; Bermel, Peter] Purdue Univ, W Lafayette, IN 47907 USA. [Montgomery, Kyle H.] Univ Calif Davis, Davis, CA 95616 USA. [Lee, Minjoo Larry] Yale Univ, New Haven, CT 06520 USA. [Tomasulo, Stephanie] US Naval Res Lab, Washington, DC 20375 USA. RP Sun, YB (reprint author), Purdue Univ, W Lafayette, IN 47907 USA. RI Lee, Minjoo/A-9720-2008 OI Lee, Minjoo/0000-0002-3151-3808 NR 22 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 978-1-4799-7944-8 J9 IEEE PHOT SPEC CONF PY 2015 PG 6 WC Energy & Fuels; Engineering, Electrical & Electronic SC Energy & Fuels; Engineering GA BE2SX UT WOS:000369992902034 ER PT S AU Tennyson, EM Frantz, JA Myers, JD Sanghera, JS Bekele, RY Na, SM Leite, MS AF Tennyson, Elizabeth M. Frantz, Jesse A. Myers, Jason D. Sanghera, Jas S. Bekele, Robel Y. Na, Suok-Min Leite, Marina S. GP IEEE TI Imaging EQE in CIGS solar cells with high spatial resolution SO 2015 IEEE 42ND PHOTOVOLTAIC SPECIALIST CONFERENCE (PVSC) SE IEEE Photovoltaic Specialists Conference LA English DT Proceedings Paper CT IEEE 42nd Photovoltaic Specialist Conference (PVSC) CY JUN 14-19, 2015 CL New Orleans, LA SP IEEE DE solar energy; thin-film; CIGS; scanning probe microscopy; optoelectronic properties ID CU(IN,GA)SE-2 THIN-FILMS; BEAM-INDUCED CURRENT; EFFICIENCY; SELENIZATION; MICROSCOPY AB We use sub-micron scanning photocurrent microscopy to spatially resolve variations in the collection properties of CIGS thin-film solar cells made from a quaternary target. Spectrally dependent photocurrent measurements show remarkable variations in the current collection properties of the grain boundaries and grain cores. We combine EQE maps with Raman and EBSD scans to infer a direct correlation between the electrical and structural properties of the material comprising these polycrystalline devices. C1 [Tennyson, Elizabeth M.; Leite, Marina S.] Univ Maryland, Dept Mat Sci & Engn, College Pk, MD 20742 USA. [Tennyson, Elizabeth M.; Leite, Marina S.] Univ Maryland, Inst Res Elect & Appl Phys, College Pk, MD 20742 USA. [Frantz, Jesse A.; Myers, Jason D.; Sanghera, Jas S.] US Naval Res Lab, Washington, DC USA. [Bekele, Robel Y.] Univ Res Fdn, Greenbelt, MD USA. [Na, Suok-Min] Univ Maryland, Dept Aerosp Engn, College Pk, MD 20742 USA. RP Tennyson, EM (reprint author), Univ Maryland, Dept Mat Sci & Engn, College Pk, MD 20742 USA. RI NA, SUOK MIN/Q-2499-2015; Tennyson, Beth/D-6472-2017 OI NA, SUOK MIN/0000-0002-7066-0616; Tennyson, Beth/0000-0003-0071-8445 NR 17 TC 0 Z9 0 U1 1 U2 5 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 0160-8371 BN 978-1-4799-7944-8 J9 IEEE PHOT SPEC CONF PY 2015 PG 4 WC Energy & Fuels; Engineering, Electrical & Electronic SC Energy & Fuels; Engineering GA BE2SX UT WOS:000369992900001 ER PT S AU Tomasulo, S Gonzalez, M Tischler, JG Abell, J Lumb, MP Yakes, MK Hirst, LC Delgado-Gonzalez, FJ Herrera, M Molina, SI Vurgaftman, I Meyer, JR Walters, RJ AF Tomasulo, Stephanie Gonzalez, Maria Tischler, Joseph G. Abell, Joshua Lumb, Matthew P. Yakes, Michael K. Hirst, Louise C. Delgado-Gonzalez, Francisco J. Herrera, Miriam Molina, Sergio I. Vurgaftman, Igor Meyer, Jerry R. Walters, Robert J. GP IEEE TI Molecular beam epitaxy of InAIAsSb for the top cell in high-efficiency InP-based lattice-matched triple-junction solar cells SO 2015 IEEE 42ND PHOTOVOLTAIC SPECIALIST CONFERENCE (PVSC) SE IEEE Photovoltaic Specialists Conference LA English DT Proceedings Paper CT IEEE 42nd Photovoltaic Specialist Conference (PVSC) CY JUN 14-19, 2015 CL New Orleans, LA SP IEEE DE InAiAsSb; InP; Molecular beam epitaxy; Multi-junction solar cells AB Triple-junction solar cells lattice-matched to InP have recently gained interest as an alternative to traditional GaAs-based devices. We predict a 1.74, 1.17,0.70 eV device can attain high efficiency and can be achieved lattice-matched to InP. However, InAlAsSb, a relatively immature material, is required for the top junction. Here, we performed a systematic study of the substrate temperature and group-V overpressure of (In0.52Al0.48As)(0.6)(AlAs0.56Sb0.44)(0.4). We found that the peak PL emission energy blue-shifted as the substrate temperature decreased and as the group-V overpressure increased, implying that low adatom mobility is key to attaining InAlAsSb with the expected bandgap energy. C1 [Tomasulo, Stephanie; Hirst, Louise C.] Naval Res Lab, Washington, DC 20375 USA. [Gonzalez, Maria] Sotera Def Solut, Annapolis Jct, MD 20701 USA. [Tischler, Joseph G.; Abell, Joshua; Yakes, Michael K.; Vurgaftman, Igor; Meyer, Jerry R.; Walters, Robert J.] Naval Res Lab, Washington, DC 20375 USA. [Lumb, Matthew P.] George Washington Univ, Washington, DC 20007 USA. [Delgado-Gonzalez, Francisco J.; Herrera, Miriam; Molina, Sergio I.] Univ Cadiz, IMEYMAT, Dpto Ciencia Mat & IM & QI, Cadiz, Spain. RP Tomasulo, S (reprint author), Naval Res Lab, Washington, DC 20375 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 0160-8371 BN 978-1-4799-7944-8 J9 IEEE PHOT SPEC CONF PY 2015 PG 4 WC Energy & Fuels; Engineering, Electrical & Electronic SC Energy & Fuels; Engineering GA BE2SX UT WOS:000369992901094 ER PT S AU Walters, RJ Yoon, W Placencia, D Scheiman, D Lumb, MP Strang, A Stavrinou, PN Jenkins, PP AF Walters, R. J. Yoon, W. Placencia, D. Scheiman, D. Lumb, M. P. Strang, A. Stavrinou, P. N. Jenkins, P. P. GP IEEE TI Multijunction Organic Photovoltaic Cells for Underwater Solar Power SO 2015 IEEE 42ND PHOTOVOLTAIC SPECIALIST CONFERENCE (PVSC) SE IEEE Photovoltaic Specialists Conference LA English DT Proceedings Paper CT IEEE 42nd Photovoltaic Specialist Conference (PVSC) CY JUN 14-19, 2015 CL New Orleans, LA SP IEEE AB A modeling and simulation effort is presented that produces a design of an novel organic photovoltaic (OPV) device specifically tailored for underwater (UW) operation. An analysis of the UW environment is presented which highlights the significant advantages of OPV for UW operation. An OPV multijunction design is presented consisting of two absorber layers with the same spectral response, enabling efficient conversion of the narrow UW spectrum and ver Novel hybrid organic/inorganic materials are introduced that are capable of forming distributed Bragg reflectors for photon management and improved current. Importantly, the entire solar cell design is based on solution processed materials enabling low cost manufacturing. C1 [Walters, R. J.; Yoon, W.; Placencia, D.; Scheiman, D.; Jenkins, P. P.] US Naval Res Lab, Washington, DC USA. [Lumb, M. P.] George Washington Univ, Washington, DC USA. [Strang, A.; Stavrinou, P. N.] Univ London Imperial Coll Sci Technol & Med, London, England. RP Walters, RJ (reprint author), US Naval Res Lab, Washington, DC USA. NR 6 TC 0 Z9 0 U1 2 U2 4 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 0160-8371 BN 978-1-4799-7944-8 J9 IEEE PHOT SPEC CONF PY 2015 PG 3 WC Energy & Fuels; Engineering, Electrical & Electronic SC Energy & Fuels; Engineering GA BE2SX UT WOS:000369992900054 ER PT S AU Wilt, DM Howard, AD Bradshaw, GK Wisler, T Jenkin, PP Scheiman, DA Lorentzen, JR AF Wilt, David M. Howard, Alex D. Bradshaw, Geoffrey K. Wisler, Tracy Jenkin, Philip P. Scheiman, David A. Lorentzen, Justin R. GP IEEE TI Post-Flight Analysis of MISSE-8 Advanced Photovoltaic Technologies SO 2015 IEEE 42ND PHOTOVOLTAIC SPECIALIST CONFERENCE (PVSC) SE IEEE Photovoltaic Specialists Conference LA English DT Proceedings Paper CT IEEE 42nd Photovoltaic Specialist Conference (PVSC) CY JUN 14-19, 2015 CL New Orleans, LA SP IEEE DE flight test; solar cells; space photovoltaics AB Advanced photovoltaic technologies were tested aboard the eighth Materials International Space Station Experiment (MISSE-8) as part of the third Forward Technology Solar Cell Experiment (FTSCE-III) over a period of approximately 26 months. The Air Force Research Laboratory Space Vehicles Directorate in collaboration with the Naval Research Laboratory flew a myriad of experiments to evaluate advanced photovoltaic cell and material technologies. Such data is critical for technology development and future transition to operational use. These experiments were comprised of inverted metamorphic (IMM) and other thin film and advanced III-V cells from multiple vendors. In addition, quantum dot enhanced solar cells and advanced solar cell coverglass replacements were flow. This paper compares the pre and post flight characterization of these advanced technologies. C1 [Wilt, David M.; Howard, Alex D.; Bradshaw, Geoffrey K.] Air Force Res Lab, Space Vehicles Directorate, Kirtland AFB, NM 87117 USA. [Wisler, Tracy] Appl Technol Associates, Albuquerque, NM 87123 USA. [Jenkin, Philip P.; Scheiman, David A.; Lorentzen, Justin R.] Naval Res Lab, Washington, DC 20375 USA. RP Wilt, DM (reprint author), Air Force Res Lab, Space Vehicles Directorate, Kirtland AFB, NM 87117 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 0160-8371 BN 978-1-4799-7944-8 J9 IEEE PHOT SPEC CONF PY 2015 PG 5 WC Energy & Fuels; Engineering, Electrical & Electronic SC Energy & Fuels; Engineering GA BE2SX UT WOS:000369992902093 ER PT S AU Yakes, MK Schmieder, KJ Lumb, MP Bennett, MF Gonzalez, M Cunningham, PD Khachatrian, A Hirst, LC Tomasulo, S Kotulak, NA Melinger, JS Walters, RJ AF Yakes, Michael K. Schmieder, Kenneth J. Lumb, Matthew P. Bennett, Mitchell F. Gonzalez, Maria Cunningham, Paul D. Khachatrian, Ani Hirst, Louise C. Tomasulo, Stephanie Kotulak, Nicole A. Melinger, Joseph S. Walters, Robert J. GP IEEE TI Evaluation of strained InAlAs as a window layer for wide bandgap materials lattice matched to InP SO 2015 IEEE 42ND PHOTOVOLTAIC SPECIALIST CONFERENCE (PVSC) SE IEEE Photovoltaic Specialists Conference LA English DT Proceedings Paper CT IEEE 42nd Photovoltaic Specialist Conference (PVSC) CY JUN 14-19, 2015 CL New Orleans, LA SP IEEE AB In order to be considered a viable option as a window layer, a number of requirements must be met. These include high transparency, small valence band offset, high conduction band offset, low surface recombination velocity, ability to be passivated in air, and availability of a selective etchant with the contact layer. In this paper, we demonstrate that strained In0.3Al0.7As meets all of these requirements for widebandgap, lattice-matched InAlAs grown on InP substrates. We expect the results to be applicable to the InAlAsSb system which could enable triple junction photovoltaic devices with record efficiencies. C1 [Yakes, Michael K.; Cunningham, Paul D.; Melinger, Joseph S.; Walters, Robert J.] Naval Res Lab, Washington, DC 20375 USA. [Schmieder, Kenneth J.; Hirst, Louise C.; Tomasulo, Stephanie; Kotulak, Nicole A.] NRC Postdoc Residing Washington, Washington, DC 20015 USA. [Lumb, Matthew P.] George Washington Univ, Washington, DC USA. [Bennett, Mitchell F.; Gonzalez, Maria; Khachatrian, Ani] Sotera Def Solut, Annapolis Jct, MD USA. RP Yakes, MK (reprint author), Naval Res Lab, Washington, DC 20375 USA. 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 978-1-4799-7944-8 J9 IEEE PHOT SPEC CONF PY 2015 PG 4 WC Energy & Fuels; Engineering, Electrical & Electronic SC Energy & Fuels; Engineering GA BE2SX UT WOS:000369992902028 ER PT S AU Yoon, W Cho, E Myers, JD Ok, YW Lumb, MP Frantz, JA Kotulak, NA Scheiman, D Jenkins, PP Rohatgi, A Walters, RJ AF Yoon, Woojun Cho, Eunhwan Myers, Jason D. Ok, Young-Woo Lumb, Matthew P. Frantz, Jesse A. Kotulak, Nicole A. Scheiman, David Jenkins, Phillip P. Rohatgi, Ajeet Walters, Robert J. GP IEEE TI Transparent conducting oxide-based, passivated contacts for high efficiency crystalline Si solar cells SO 2015 IEEE 42ND PHOTOVOLTAIC SPECIALIST CONFERENCE (PVSC) SE IEEE Photovoltaic Specialists Conference LA English DT Proceedings Paper CT IEEE 42nd Photovoltaic Specialist Conference (PVSC) CY JUN 14-19, 2015 CL New Orleans, LA SP IEEE DE Si; Al2O3; passivation; tunnel oxide; transparent conducting oxide; solar cell ID LAYERS; AL2O3 AB In this work, we investigate a transparent conducting oxide (TCO)-based, passivated contact for the potential use as a passivated tunnel contact to p-type Si. As a surface passivation layer, the Al2O3 films with varying the thickness are deposited using plasma-enhanced atomic layer deposition (PEALD) at 200 degrees C, followed by post-deposition annealing. For a similar to 15 nm thick Al2O3 layer, a high level of surface passivation is achieved, characterized by the effective surface recombination velocity (S-eff,S-max) of <30 cm/s. The samples with ultrathin Al2O3 layer <3 nm, however, shows degradation in passivation quality, reaching the S-eff,S-max<500 cm/s. When Al-doped zinc oxide (ZnO:Al) as TCO contact is directly deposited onto a similar to 10.6 nm thick Al2O3 coated p-Si via RF magnetron sputtering, the final passivation quality (p-Si/Al2O3/ZnO:Al) is characterized by the saturation current density at contact (J(0,contact)) of 92.1 fA/cm(2) with the implied open-circuit voltage (iV(oc)) of 653 mV, showing the passivation quality is not severely degraded after sputtering without thermal treatment. Further process optimization of PEALD is in progress to produce an improved quality of surface passivation with the S-eff,S-max<10 cm/s for ultrathin passivation layers less than 2 nm, enabling a passivated tunneling contact. C1 [Yoon, Woojun; Myers, Jason D.; Lumb, Matthew P.; Frantz, Jesse A.; Kotulak, Nicole A.; Scheiman, David; Jenkins, Phillip P.; Walters, Robert J.] US Naval Res Lab, Washington, DC 20375 USA. [Cho, Eunhwan; Ok, Young-Woo; Rohatgi, Ajeet] Georgia Inst Technol, Sch Elect & Comp Engn, Univ Ctr Excellence Photovolta Res & Educ, Atlanta, GA 30332 USA. [Lumb, Matthew P.] George Washington Univ, Washington, DC 20037 USA. RP Yoon, W (reprint author), US Naval Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA. NR 12 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 0160-8371 BN 978-1-4799-7944-8 J9 IEEE PHOT SPEC CONF PY 2015 PG 4 WC Energy & Fuels; Engineering, Electrical & Electronic SC Energy & Fuels; Engineering GA BE2SX UT WOS:000369992903050 ER PT S AU Yoon, W Boercker, JE Lumb, MP Placencia, D Foos, EE Tischler, JG Jenkins, PP Walters, RJ AF Yoon, Woojun Boercker, Janice E. Lumb, Matthew P. Placencia, Diogenes Foos, Edward E. Tischler, Joseph G. Jenkins, Phillip P. Walters, Robert J. GP IEEE TI Dark Current Reduction and Bandgap-Voltage Offset in Solution-processed Nanocrystal Solar Cells SO 2015 IEEE 42ND PHOTOVOLTAIC SPECIALIST CONFERENCE (PVSC) SE IEEE Photovoltaic Specialists Conference LA English DT Proceedings Paper CT IEEE 42nd Photovoltaic Specialist Conference (PVSC) CY JUN 14-19, 2015 CL New Orleans, LA SP IEEE DE PbS; nanocrystal; photovoltaic; solar cells; open-circuit voltage; bandgap-voltage offset ID SPRAY DEPOSITION; HETEROJUNCTION; LAYER; FILMS; OXIDE AB In this work, we report dark current reduction in solution-processed PbS nanocrystal-metal Schottky junction solar cells via improved LiF passivation of the interface between PbS nanocrystal films and the metal electrode. For the optimized LiF interfacial layer, the dark saturation current density (J(0)) is decreased by at least one order of magnitude, resulting in very high open-circuit voltage (V-oc) of 692 +/- 7 mV under one sun illumination for similar to 1.4 eV PbS nanocrystals. Using different size of PbS nanocrystals and therefore different bandgaps, we also demonstrate V-oc (mV)=553E(g)/q-59 as a function of the PbS nanocrystal bandgap (E-g). For different types of junctions employed for solution-processed PbS nanocrystal solar cells, we plot the bandgap-voltage offsets (E-g/q-V-oc) under open-circuit conditions, showing strong dependence of the V-oc on the E-g regardless of the types of junction used. Similar dependence is also found in solution-processed and sintered CdTe nanocrystal solar cells. These results suggest that suppressing the non-radiative recombination contributions to the dark current, such as improved passivation of nanocrystal surfaces, is more critical to improve the V-oc in nanocrystal solar cells, rather than optimizing the device architecture with varying the n-type semiconducting materials. C1 [Yoon, Woojun; Boercker, Janice E.; Lumb, Matthew P.; Placencia, Diogenes; Foos, Edward E.; Tischler, Joseph G.; Jenkins, Phillip P.; Walters, Robert J.] US Naval Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA. [Lumb, Matthew P.] George Washington Univ, Washington, DC 20037 USA. [Foos, Edward E.] NSWC Indian Head EOD Technol Div, Indian Head, MD 20640 USA. RP Yoon, W (reprint author), US Naval Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA. NR 27 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 0160-8371 BN 978-1-4799-7944-8 J9 IEEE PHOT SPEC CONF PY 2015 PG 4 WC Energy & Fuels; Engineering, Electrical & Electronic SC Energy & Fuels; Engineering GA BE2SX UT WOS:000369992900124 ER PT S AU Shannon, R Legato, M Stockhamer, S Wagner, C AF Shannon, Russell Legato, Maria Stockhamer, Steven Wagner, Crystal GP IEEE TI Power Law Behavior in Navy and Marine Corps Avionics Systems SO 2015 IEEE AUTOTESTCON SE IEEE Autotestcon LA English DT Proceedings Paper CT 51st Annual IEEE AUTOTESTCON Conference CY NOV 02-05, 2015 CL National Harbor, MD SP IEEE, IEEE Aerosp & Elect Syst Soc, IEEE Instrumentat & Measurement Soc DE Avionics; diagnostics; power law; maintenance; bad actors; no fault found; A-799 AB A power law distribution is a mathematically lopsided probability distribution in which one quantity varies as a power of another. Probability distributions, in general, describe the percentage of items that have a particular value in a data set. Empirical examples of power law distributions typically involve a small group of "bad actors" within a population that cause the tail of the distribution to skew away from that of a straight line. Avionics failures within the Naval Air Enterprise (NAE) also typically involve a small population of bad actors which account for a large portion of failure conditions. Therefore, the authors were eager to investigate whether Navy and Marine Corps avionics systems failures fit a power law distribution. If so, it would suggest that radical change is needed to current maintenance practices, including a change in investments in automatic test equipment. To address this question, the top five hundred avionics degraders from across the NAE were analyzed using a method laid out by Clauset, et al [1]. First, data was gathered and candidate systems were identified using visual inspection of the data. Data from candidates was then analyzed such that the tail of the distribution could be compared to the power law distribution. Finally, a goodness of fit calculation was performed to find whether or not the power law distribution appropriately described the behavior of the candidate system. All power law candidates were then compared to other types of distributions. This information was used to determine if the power law distribution truly is the favored distribution for a given data set. Analysis was done on two data sets: one from 2000 to 2010 and with data from 2010 to mid-2015. It was found that the results from this comparison favored other types of distributions over the power law in almost every case. Furthermore, it was found that no-fault-found maintenance actions can create the illusion of power law failure behavior in some systems, where none actually exists. C1 [Shannon, Russell; Legato, Maria; Stockhamer, Steven; Wagner, Crystal] Naval Air Syst Command, Lakehurst, NJ USA. RP Shannon, R (reprint author), Naval Air Syst Command, Lakehurst, NJ USA. EM russell.shannon@navy.mil; maria.legato@navy.mil; steven.stockhamer@navy.mil; crystal.wagner@navy.mil NR 11 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 978-1-4799-8190-8 J9 IEEE AUTOTESTCON PY 2015 BP 345 EP 349 PG 5 WC Engineering, Electrical & Electronic SC Engineering GA BE2IF UT WOS:000369339800058 ER PT J AU Meier, RR Picone, JM Drob, D Bishop, J Emmert, JT Lean, JL Stephan, AW Strickland, DJ Christensen, AB Paxton, LJ Morrison, D Kil, H Wolven, B Woods, TN Crowley, G Gibson, ST AF Meier, R. R. Picone, J. M. Drob, D. Bishop, J. Emmert, J. T. Lean, J. L. Stephan, A. W. Strickland, D. J. Christensen, A. B. Paxton, L. J. Morrison, D. Kil, H. Wolven, B. Woods, Thomas N. Crowley, G. Gibson, S. T. TI Remote Sensing of Earth's Limb by TIMED/GUVI: Retrieval of thermospheric composition and temperature SO EARTH AND SPACE SCIENCE LA English DT Article ID ULTRAVIOLET IMAGER GUVI; ELECTRON-IMPACT EXCITATION; SCHUMANN-RUNGE BANDS; CROSS-SECTIONS; UPPER-ATMOSPHERE; MOLECULAR-OXYGEN; ATOMIC OXYGEN; DAYGLOW; IONOSPHERE; MODEL AB The Global Ultraviolet Imager (GUVI) onboard the Thermosphere-Ionosphere-Mesosphere Energetics and Dynamics (TIMED) satellite senses far ultraviolet emissions from O and N-2 in the thermosphere. Transformation of far ultraviolet radiances measured on the Earth limb into O, N-2, and O-2 number densities and temperature quantifies these responses and demonstrates the value of simultaneous altitude and geographic information. Composition and temperature variations are available from 2002 to 2007. This paper documents the extraction of these data products from the limb emission rates. We present the characteristics of the GUVI limb observations, retrievals of thermospheric neutral composition and temperature from the forward model, and the dramatic changes of the thermosphere with the solar cycle and geomagnetic activity. We examine the solar extreme ultraviolet (EUV) irradiance magnitude and trends through comparison with simultaneous Solar Extreme EUV (SEE) measurements on TIMED and find the EUV irradiance inferred fromGUVI averaged (2002-2007) 30% lowermagnitude than SEE version 11 and varied less with solar activity. The smaller GUVI variability is not consistent with the view that lower solar EUV radiation during the past solar minimum is the cause of historically low thermospheric mass densities. Thermospheric O and N-2 densities are lower than the NRLMSISE-00 model, but O-2 is consistent. We list some lessons learned from the GUVI program along with several unresolved issues. C1 [Meier, R. R.; Picone, J. M.] George Mason Univ, Sch Phys Astron & Computat Sci, Fairfax, VA 22030 USA. [Drob, D.; Bishop, J.; Emmert, J. T.; Lean, J. L.; Stephan, A. W.] Naval Res Lab, Div Space Sci, Washington, DC 20375 USA. [Strickland, D. J.] Computat Phys Inc, Springfield, VA USA. [Christensen, A. B.] Aerosp Corp, Space Sci Applicat Lab, El Segundo, CA 90245 USA. [Paxton, L. J.; Morrison, D.; Kil, H.; Wolven, B.] Johns Hopkins Univ, Appl Phys Lab, Laurel, MD USA. [Woods, Thomas N.] Univ Colorado, LASP, Boulder, CO 80309 USA. [Crowley, G.] ASTRA LLC, Boulder, CO USA. [Gibson, S. T.] Australian Natl Univ, Res Sch Phys & Engn, Canberra, ACT, Australia. RP Meier, RR (reprint author), George Mason Univ, Sch Phys Astron & Computat Sci, Fairfax, VA 22030 USA. EM rmeier@gmu.edu RI Paxton, Larry/D-1934-2015; OI Paxton, Larry/0000-0002-2597-347X; Wolven, Brian/0000-0003-2858-2332 NR 74 TC 11 Z9 11 U1 0 U2 1 PU AMER GEOPHYSICAL UNION PI WASHINGTON PA 2000 FLORIDA AVE NW, WASHINGTON, DC 20009 USA SN 2333-5084 J9 Earth Space Sci JI Earth Space Sci. PD JAN PY 2015 VL 2 IS 1 BP 1 EP 37 DI 10.1002/2014EA000035 PG 37 WC Geosciences, Multidisciplinary SC Geology GA DE6MV UT WOS:000370748900001 ER PT J AU Greenlee, JD Feigelson, BN Anderson, TJ Hite, JK Hobart, KD Kub, FJ AF Greenlee, Jordan D. Feigelson, Boris N. Anderson, Travis J. Hite, Jennifer K. Hobart, Karl D. Kub, Francis J. TI Symmetric Multicycle Rapid Thermal Annealing: Enhanced Activation of Implanted Dopants in GaN SO ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY LA English DT Article ID ION-IMPLANTATION; RAMAN-SCATTERING; GALLIUM NITRIDE; OHMIC CONTACTS; HIGH-PRESSURE; MG; GROWTH; ALGAN; HEMTS; ALN AB Selectively activated p-type regions are necessary for many electronic devices that require planar processing. The standard process of implanting p-type dopants, such as Mg, in GaN is notoriously more difficult than in other material systems, as the extremely high temperatures required to activate the implanted Mg also damage the GaN surface. In this research, a novel annealing technique is introduced for this purpose - symmetric multicycle rapid thermal annealing (SMRTA). It is shown that SMRTA is superior to the earlier developed multicycle rapid thermal annealing (MRTA) in terms of improvement of the crystalline quality of implanted GaN. The SMRTA technique was applied to Mg-implanted GaN to realize a rectifying junction. The annealing process detailed in this research will be a key enabling step for future GaN-based devices that require planar processing with selective area implants. (C) The Author(s) 2015. Published by ECS. All rights reserved. C1 [Greenlee, Jordan D.] CNR, Washington, DC 20001 USA. [Feigelson, Boris N.; Anderson, Travis J.; Hite, Jennifer K.; Hobart, Karl D.; Kub, Francis J.] Naval Res Lab, Washington, DC 20375 USA. RP Greenlee, JD (reprint author), CNR, Washington, DC 20001 USA. EM jordan.greenlee@gmail.com RI Hite, Jennifer/L-5637-2015 OI Hite, Jennifer/0000-0002-4090-0826 NR 27 TC 5 Z9 5 U1 3 U2 8 PU ELECTROCHEMICAL SOC INC PI PENNINGTON PA 65 SOUTH MAIN STREET, PENNINGTON, NJ 08534 USA SN 2162-8769 J9 ECS J SOLID STATE SC JI ECS J. Solid State Sci. Technol. PY 2015 VL 4 IS 9 BP P382 EP P386 DI 10.1149/2.0191509jss PG 5 WC Materials Science, Multidisciplinary; Physics, Applied SC Materials Science; Physics GA DE3YQ UT WOS:000370566800009 ER PT J AU Jensen, TG Shinoda, T Chen, S Flatau, M AF Jensen, Tommy G. Shinoda, Toshiaki Chen, Sue Flatau, Maria TI Ocean Response to CINDY/DYNAMO MJOs in Air-Sea-Coupled COAMPS SO JOURNAL OF THE METEOROLOGICAL SOCIETY OF JAPAN LA English DT Article DE air-sea interaction; equatorial currents; intra-seasonal oscillations; coupled model ID MADDEN-JULIAN OSCILLATION; EQUATORIAL INDIAN-OCEAN; INTRASEASONAL KELVIN WAVES; PREDICTION SYSTEM COAMPS; VARIABILITY; MODEL; PACIFIC; WIND; CIRCULATION; DYNAMICS AB The response of the ocean to three Madden-Julian Oscillation (MJO) events during the fall of 2011 is simulated by the Coupled Ocean-Atmosphere Mesoscale Prediction System (COAMPS) in a fully coupled mode with high resolution in the atmosphere and ocean. The model simulates the cooler sea surface temperature (SST) and disappearance of the diurnal cycle in SST during the active phase of the MJO and it compares well with the observed SST from Research Moored Array for African-Asian-Australian Monsoon Analysis and Prediction (RAMA) buoys. The most striking direct response to the westerly zonal wind stress associated with the onset of the MJO is a rapidly accelerating Yoshida jet in the ocean mixed layer with equatorial zonal currents exceeding 1 m s(-1). These jets are found in the model as well as the RAMA buoy observations. In the model, the Yoshida jet is superimposed on the seasonal Wyrtki jet that has a subsurface local maximum between 50 and 150 m. A shear layer separates the subsurface seasonal jet and the surface jet forced by the MJO. The sea surface elevation response and upper ocean heat content show wind generated westward propagating Rossby waves symmetric around the equator and an associated eastward propagating equatorial Kelvin wave response. After the third MJO event, the Yoshida jet spans most of the equatorial Indian Ocean. Upon reaching the Indonesian coast, the associated equatorial Kelvin wave reflects and generates additional westward propagating equatorial Rossby waves. The volume transport associated with these waves causes the westward advection of low-salinity north and south of the equator, impacting the tropical ocean circulation. C1 [Jensen, Tommy G.] Naval Res Lab, Div Oceanog, Stennis Space Ctr, MS 39529 USA. [Shinoda, Toshiaki] Texas A&M Univ, Corpus Christi, TX USA. [Chen, Sue; Flatau, Maria] Naval Res Lab, Marine Meteorol Div, Monterey, CA USA. RP Jensen, TG (reprint author), Naval Res Lab, Div Oceanog, Code 7322,1009 Balch Blvd, Stennis Space Ctr, MS 39529 USA. EM Tommy.Jensen@nrlssc.navy.mil RI Shinoda, Toshiaki/J-3745-2016 OI Shinoda, Toshiaki/0000-0003-1416-2206 FU Office of Naval Research [601153N]; NOAA [NA15OAR431074]; NSF [AGS-1347132] FX This work was supported by The Office of Naval Research under Program Element 601153N, and computing resources were provided by the Department of Defense High Performance Computing Modernization Program. Toshiaki Shinoda is supported by NOAA grant NA15OAR431074 and NSF grant AGS-1347132. NR 55 TC 4 Z9 4 U1 1 U2 4 PU METEOROLOGICAL SOC JAPAN PI TOKYO PA C/O JAPAN METEOROLOGICAL AGENCY 1-3-4 OTE-MACHI, CHIYODA-KU, TOKYO, 100-0004, JAPAN SN 0026-1165 EI 2186-9057 J9 J METEOROL SOC JPN JI J. Meteorol. Soc. Jpn. PY 2015 VL 93A SI SI BP 157 EP 178 DI 10.2151/jmsj.2015-049 PG 22 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA DD6IG UT WOS:000370027300010 ER PT B AU Aram, S Shan, H Lee, YT AF Aram, Shawn Shan, Hua Lee, Yu-Tai GP ASME TI APPLICATION OF AN INTEGRATED FLOW AND DBD PLASMA ACTUATION MODEL TO A HIGH-LIFT AIRFOIL: PART II - LES SO PROCEEDINGS OF THE ASME/JSME/KSME JOINT FLUIDS ENGINEERING CONFERENCE, 2015, VOL 1 LA English DT Proceedings Paper CT ASME-JSME-KSME Joint Fluids Engineering Conference CY JUL 26-31, 2015 CL Seoul, SOUTH KOREA SP ASME, Fluids Engn Div ID INDUCED FLUID-DYNAMICS; CYLINDER FLOW; DISCHARGE; SEPARATION AB A numerical study is conducted to explore the effect of a single dielectric barrier discharge (SDBD) plasma actuator for controlling a turbulent boundary layer separation on a deflected flap of a high-lift airfoil at a choid-based Reynolds number of 240000. An integrated numerical model consisting of a DBD electro-hydrodynamic (EHD) body force model and computational fluid dynamics (CFD) package called NavyFoam is employed in this study. The EHD body force is calculated by solving the Partial Deferential Equation (PDE)-based electrostatic equations for electric potential due to applied voltage and net charged density due to ionized air. The electric potential equation, the net charge density equation, and the flow equations are solved in separate computational domains. Comparison of current computational results against experimental data indicates reasonable agreement between the two studies for the baseline flow as well as controlled cases using two AC waveforms including sine and pulse-amplitude modulated sine with different modulation frequencies. Performance of the actuator is also examined for the square and pulse AC waveforms. It is found that at the experimental conditions, the pulse amplitude-modulated sine waveform provides the most lift enhancement in comparison with other waveforms used in this study, despite the least power input that it requires to operate. The effect of the input voltage amplitude on the performance of the actuator is also examined for the sine and pulse-amplitude-modulated sine waveforms. It is shown that beyond a critical voltage, the sine wave is more effective in improving the aerodynamic performance of the airfoil than the other waveform. C1 [Aram, Shawn; Shan, Hua; Lee, Yu-Tai] Naval Surface Warfare Ctr, Carderock Div, West Bethesda, MD 20817 USA. RP Aram, S (reprint author), Naval Surface Warfare Ctr, Carderock Div, West Bethesda, MD 20817 USA. NR 43 TC 0 Z9 0 U1 1 U2 2 PU AMER SOC MECHANICAL ENGINEERS PI NEW YORK PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA BN 978-0-7918-5721-2 PY 2015 AR V001T14A003 PG 11 WC Engineering, Mechanical SC Engineering GA BE2LW UT WOS:000369566100039 ER PT B AU Lee, YT AF Lee, Yu -Tai GP ASME TI COMPARISON OF THREE SLIP VELOCITY MODELS FOR A CENTRIFUGAL IMPELLER SO PROCEEDINGS OF THE ASME/JSME/KSME JOINT FLUIDS ENGINEERING CONFERENCE, 2015, VOL 1 LA English DT Proceedings Paper CT ASME-JSME-KSME Joint Fluids Engineering Conference CY JUL 26-31, 2015 CL Seoul, SOUTH KOREA SP ASME, Fluids Engn Div AB The slip velocity model has been created to account for the effects produced by the difference in velocities between the suction side and the pressure side of the blade at the centrifugal impeller exit. The model is applied to reduce the ideal tangential velocity and provides an estimation of the impeller exit velocity and blade loading for use in turbomachinery meanline modeling. Wiesner reviewed all the proposed models in 1967 and came up with a set of formulations which are only dependent on the impeller geometry, such as number of blades, exit blade angle and blade inlet-to-exit radius ratio. In order to cover flow induced effects and off-design conditions, Qiu recently proposed a formula which contains the effects from the radial rotation, blade turning and passage width variation. For a centrifugal impeller, often the impeller exit condition is affected by downstream components. Pfleiderer's model of 1961 includes effects of downstream vaned diffuser, vaneless diffuser, or a volute. This paper focuses on the comparisons of the three models in predicting blade loading for a centrifugal-fan impeller with a double-discharge volute at both design and off-design conditions. The comparisons reveal not only each model's prediction accuracy, but also the flexibility of each model. C1 [Lee, Yu -Tai] Naval Surface Warfare Ctr, Carderock Div, Bethesda, MD USA. RP Lee, YT (reprint author), Naval Surface Warfare Ctr, Carderock Div, Bethesda, MD USA. NR 12 TC 0 Z9 0 U1 1 U2 1 PU AMER SOC MECHANICAL ENGINEERS PI NEW YORK PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA BN 978-0-7918-5721-2 PY 2015 AR V001T02A001 PG 9 WC Engineering, Mechanical SC Engineering GA BE2LW UT WOS:000369566100003 ER PT B AU Shan, H Aram, S Lee, YT AF Shan, Hua Aram, Shawn Lee, Yu-Tai GP ASME TI APPLICATION OF AN INTEGRATED FLOW AND DBD PLASMA ACTUATION MODEL TO A HIGH-LIFT AIRFOIL: PART I - RANS SO PROCEEDINGS OF THE ASME/JSME/KSME JOINT FLUIDS ENGINEERING CONFERENCE, 2015, VOL 1 LA English DT Proceedings Paper CT ASME-JSME-KSME Joint Fluids Engineering Conference CY JUL 26-31, 2015 CL Seoul, SOUTH KOREA SP ASME, Fluids Engn Div AB An integrated numerical simulation tool that couples the Reynolds averaged Navier-Stokes (RANS) or the large eddy simulation (LES) solver for incompressible flows with the dielectric barrier discharge (DBD) electro-hydrodynamic (EHD) body force model has been developed. The EHD body force model is based on solving the electrostatic equations for the electric potential due to applied voltage and the net charge density due to ionized air. The boundary condition for the charge density on the dielectric surface is obtained from a Space-Time Lumped-Element (STLE) circuit model that accounts for the time and space dependence of air ionization on the input voltage amplitude, frequency, electrode geometry, and dielectric properties. The development of the numerical simulation. tool is based on the framework of NavyFOAM using a multi-domain approach. The electric potential equation, the net charge density equation, and the flow equations are solved in separate computational domains. All equations are discretized in space using the cell-centered finite volume method. Parallel computation is implemented using domain-decomposition and message passing interface (MPI). Due to a large disparity in time scales between the electric discharge and the flow, a multiple sub-cycle technique is used in coupling the plasma solver and the flow solver. This paper focuses on its application to numerical simulation of flow separation and control over a high-lift flapped airfoil at a Reynolds number of 240,000. The 2-D unsteady RANS simulation utilized the Wilcox k-omega, the SST k-omega, and the k-kl-omega turbulence models. For the baseline case, in comparison with the measurement, the k-kl-omega model captures the feature of the unsteadiness of flow field associated with flow separation and shedding of vortices, better than the Wilcox k-omega and SST k-omega models. In the RANS simulations for flow separation control with DBD plasma actuation, the actuator is driven by voltage signals of a continuous or an amplitude-modulated sine waveform with a range of voltage amplitudes. The numerical results indicate that the modulated forcing is more effective than the continuous forcing for a certain range of applied voltages. The electrical power consumption calculated by the plasma model fits to a parabolic curve as a function of the root-mean-square of applied voltage. C1 [Shan, Hua; Aram, Shawn; Lee, Yu-Tai] Naval Surface Warfare Ctr, Carderock Div, West Bethesda, MD 20817 USA. RP Shan, H (reprint author), Naval Surface Warfare Ctr, Carderock Div, West Bethesda, MD 20817 USA. NR 24 TC 0 Z9 0 U1 1 U2 1 PU AMER SOC MECHANICAL ENGINEERS PI NEW YORK PA THREE PARK AVENUE, NEW YORK, NY 10016-5990 USA BN 978-0-7918-5721-2 PY 2015 AR V001T14A004 PG 11 WC Engineering, Mechanical SC Engineering GA BE2LW UT WOS:000369566100040 ER PT B AU Shan, H Kim, SE Rhee, B AF Shan, Hua Kim, Sung-Eun Rhee, Bong GP ASME TI A FULLY COUPLED FLOW AND 6-DOF MOTION SOLVER IN MULTIPLE REFERENCE FRAMES SO PROCEEDINGS OF THE ASME/JSME/KSME JOINT FLUIDS ENGINEERING CONFERENCE, 2015, VOL 1 LA English DT Proceedings Paper CT ASME-JSME-KSME Joint Fluids Engineering Conference CY JUL 26-31, 2015 CL Seoul, SOUTH KOREA SP ASME, Fluids Engn Div AB In many computational fluid dynamics (CFD) applications involving a single rotating part, such as the flow through an open water propeller rotating at a constant rpm, it is convenient to formulate the governing equations in a non inertial rotating frame. For flow problems consisting of both stationary and rotating parts, e.g. the stator and the rotor of a turbine, or the hull and propeller of a ship, the multiple reference frames (MRF) approach has been widely used. In most existing MRF models, the computation domain is divided into stationary and rotating zones. In the stationary zone, the flow equations are formulated in the inertial frame, while in the rotating zone, the equations are solved in the non-inertial rotating frame. Also, the flow is assumed to be steady in both zones and the flow solution in the rotating zone can be interpreted as the phase-locked time average result. Compared with other approaches, such as the actuator disk (body-force) model, the MRF approach is superior because it accounts for the actual geometry of the rotating part, e.g. propeller blades. A more complicated situation occurs when the flow solver is coupled to the six degrees of freedom (6-DOF) equations of rigid-body motion in predicting the maneuver of a self-propelled surface or underwater vehicle. In many applications, the propeller is replaced by the actuator disk model. The current work attempts to extend the MRF approach to the 6-DOF maneuvering problems. The governing equations for unsteady incompressible flow in a non-inertial frame have been extended to the flow equations in multiple reference frames: a hull-fixed frame that undergoes translation and rotation predicted by the 6-DOF equations of motion and a propeller-fixed frame in relative rotation with respect to the hull. Because of the large disparity between time scales in the 6-DOF rigid body motion of the hull and the relative rotational motion of the propeller, the phase-locked solution in the propeller MRF zone is considered a reasonable approximation for the actual flow around the propeller. The flow equations are coupled to the 6-DOF equations of motion using an iterative coupling algorithm. The coupled solver has been developed as part of NavyFOAM. The theoretical framework and the numerical implementation of the coupled solver are outlined in this paper. Some numerical test results are also presented. C1 [Shan, Hua; Kim, Sung-Eun; Rhee, Bong] Naval Surface Warfare Ctr, Carderock Div, West Bethesda, MD 20817 USA. RP Shan, H (reprint author), Naval Surface Warfare Ctr, Carderock Div, West Bethesda, MD 20817 USA. NR 15 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 978-0-7918-5721-2 PY 2015 AR V001T03A005 PG 12 WC Engineering, Mechanical SC Engineering GA BE2LW UT WOS:000369566100011 ER PT J AU Smith, RK Montgomery, MT Kilroy, G Tang, SM Muller, SK AF Smith, Roger K. Montgomery, Michael T. Kilroy, Gerard Tang, Shengming Mueller, Sebastian K. TI Tropical low formation during the Australian monsoon: the events of January 2013 SO AUSTRALIAN METEOROLOGICAL AND OCEANOGRAPHIC JOURNAL LA English DT Article ID CYCLONE FORMATION; NWP SYSTEM; POTENTIAL VORTICITY; CYCLOGENESIS; PREDICTION; DIAGNOSIS; DEPRESSIONS AB An analysis of tropical low formation in the Australian monsoon during January 2013 is presented based on European Centre for Medium Range Weather Forecast (ECMWF) analyses. The focus is on three lows that developed on the monsoon shear line, two of which eventually became tropical cyclones. One of the disturbances intensified as it made a loop over land. Interpretations of the formation are given in terms of vorticity dynamics. The roll up of low-level absolute vorticity associated with the shear line is a prominent feature of the early development of the lows, a mechanism akin to that believed to operate in the formation of hurricanes from Atlantic easterly waves. A notable feature of the two lows that eventually became tropical cyclones was the occurrence of persistent bouts of deep convection near the circulation centre. The development of the low that didn't achieve tropical cyclone status was apparently thwarted by strong vertical shear and drying of the middle troposphere. C1 [Smith, Roger K.; Kilroy, Gerard; Mueller, Sebastian K.] Univ Munich, Inst Meteorol, Theresienstr 37, D-80333 Munich, Germany. [Montgomery, Michael T.] Naval Postgrad Sch, Dept Meteorol, Monterey, CA USA. [Tang, Shengming] Tongji Univ, State Key Lab Disaster Reduct Civil Engn, Shanghai 200092, Peoples R China. RP Smith, RK (reprint author), Univ Munich, Inst Meteorol, Theresienstr 37, D-80333 Munich, Germany. EM roger.smith@lmu.de FU German Research Council (Deutsche Forschungsgemeinschaft) [SM30/23-4]; Office of Naval Research Global [N62909-15-1-N021]; NSF [AGS-1313948]; NOAA HFIP grant [N0017315WR00048]; NASA [NNG11PK021]; U.S. Naval Postgraduate School FX RKS acknowledges funding for tropical cyclone research from the German Research Council (Deutsche Forschungsgemeinschaft) under Grant no SM30/23-4 and the Office of Naval Research Global under Grant No. N62909-15-1-N021. MTM acknowledges the support of NSF grant AGS-1313948, NOAA HFIP grant N0017315WR00048, NASA grant NNG11PK021 and the U.S. Naval Postgraduate School. NR 24 TC 5 Z9 5 U1 1 U2 2 PU AUSTRALIAN BUREAU METEOROLOGY PI MELBOURNE PA GPO BOX 1289, MELBOURNE, VIC 3001, AUSTRALIA SN 1836-716X J9 AUST METEOROL OCEAN JI Aust. Meteorol. Oceanogr. J. PY 2015 VL 65 IS 3-4 BP 318 EP 341 PG 24 WC Meteorology & Atmospheric Sciences; Oceanography SC Meteorology & Atmospheric Sciences; Oceanography GA DC0MF UT WOS:000368910700003 ER PT S AU Kim, SE AF Kim, Sung-Eun GP IOP TI Progress in Numerical Simulation of Turbulent Cavitating Flow in an Axial Waterjet Pump SO 9TH INTERNATIONAL SYMPOSIUM ON CAVITATION (CAV2015) SE Journal of Physics Conference Series LA English DT Proceedings Paper CT 9th International Symposium on Cavitation (CAV) CY DEC 06-10, 2015 CL Ecole Polytechnique Federale Lausanne, Lausanne, SWITZERLAND HO Ecole Polytechnique Federale Lausanne AB A progress made in numerical simulation of turbulent cavitating flow in an axial waterjet pump (ONR AxWJ-2) is presented. The computational approach is designed to resolve the interaction between the rotor and the stator both in time and in space comprising the full 360 degrees sector of the pump, using a scalable finite-volume-based Navier-Stokes solver. Unsteady Reynold-Averaged Navier-Stokes (URANS) and a hybrid of URANS and Large Eddy Simulation (LES) are employed for turbulence modeling and also for directly capturing some of large-scale coherent structures in the flow. A continuum mixture approach based on phasic volume-fraction is adopted along with a finite-rate mass-transfer model. It is shown that both the major quantities of interest (QOI) of waterjet pumps and the salient features of the flow such as tip-leakage vortex (TLV) cavitation can be predicted with a commendable accuracy. C1 [Kim, Sung-Eun] Naval Surface Warfare Ctr Carderock Div, 9500 McArthur Blvd, West Bethesda, MD 20817 USA. RP Kim, SE (reprint author), Naval Surface Warfare Ctr Carderock Div, 9500 McArthur Blvd, West Bethesda, MD 20817 USA. EM sungeun.kim@navy.mil NR 9 TC 0 Z9 0 U1 2 U2 4 PU IOP PUBLISHING LTD PI BRISTOL PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND SN 1742-6588 J9 J PHYS CONF SER PY 2015 VL 656 AR 012064 DI 10.1088/1742-6596/656/1/012064 PG 4 WC Physics, Applied; Physics, Multidisciplinary SC Physics GA BE1UH UT WOS:000368580600064 ER PT S AU Marras, S Muller, A Giraldo, FX AF Marras, Simone Mueller, Andreas Giraldo, Francis X. BE Kirby, RM Berzins, M Hesthaven, JS TI Physics-Based Stabilization of Spectral Elements for the 3D Euler Equations of Moist Atmospheric Convection SO SPECTRAL AND HIGH ORDER METHODS FOR PARTIAL DIFFERENTIAL EQUATIONS ICOSAHOM 2014 SE Lecture Notes in Computational Science and Engineering LA English DT Proceedings Paper CT 10th International Conference on Spectral and High-Order Methods (ICOSAHOM) CY JUN 23-27, 2014 CL Salt Lake City, UT SP US Natl Sci Fdn, US Off Naval Res, US Air Force Off Sponsored Res, US Army Res Off, University Utah, SCI Inst ID DISCONTINUOUS GALERKIN METHODS; ARTIFICIAL VISCOSITY; SIMULATION; FLOWS; MODEL AB In the context of stabilization of high order spectral elements, we introduce a dissipative scheme based on the solution of the compressible Euler equations that are regularized through the addition of a residual-based stress tensor. Because this stress tensor is proportional to the residual of the unperturbed equations, its effect is close to none where the solution is sufficiently smooth, whereas it increases elsewhere. This paper represents a first extension of the work by Nazarov and Hoffman (Int J Numer Methods Fluids 71:339-357, 2013) to high-order spectral elements in the context of low Mach number atmospheric dynamics. The simulations show that the method is reliable and robust for problems with important stratification and thermal processes such as the case of moist convection. The results are partially compared against a Smagorinsky solution. With this work we mean to make a step forward in the implementation of a stabilized, high order, spectral element large eddy simulation (LES) model within the Nonhydrostatic Unified Model of the Atmosphere, NUMA. C1 [Marras, Simone; Mueller, Andreas; Giraldo, Francis X.] Naval Postgrad Sch, Dept Appl Math, Monterey, CA 93943 USA. RP Marras, S (reprint author), Naval Postgrad Sch, Dept Appl Math, 833 Dyer Rd, Monterey, CA 93943 USA. EM smarras1@nps.edu; amueller@nps.edu; fxgirald@nps.edu RI Marras, Simone/K-9155-2016 OI Marras, Simone/0000-0002-7498-049X NR 21 TC 0 Z9 0 U1 1 U2 2 PU SPRINGER-VERLAG BERLIN PI BERLIN PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY SN 1439-7358 BN 978-3-319-19800-2; 978-3-319-19799-9 J9 LECT NOTES COMP SCI PY 2015 VL 106 BP 355 EP 363 DI 10.1007/978-3-319-19800-2_32 PG 9 WC Computer Science, Theory & Methods; Engineering, Electrical & Electronic; Mathematics, Applied SC Computer Science; Engineering; Mathematics GA BE1SB UT WOS:000368440400032 ER PT J AU Savage, JA Tokmakian, RT Batteen, ML AF Savage, Jonathan A. Tokmakian, Robin T. Batteen, Mary L. TI Assessment of the HYCOM velocity fields during Agulhas Return Current Cruise 2012 SO JOURNAL OF OPERATIONAL OCEANOGRAPHY LA English DT Article ID MODEL; SOUTH AB We describe a comparison between velocity data (Acoustic Doppler Current Profiler) collected on the Agulhas Return Current (ARC) Cruise of 2012 with model outcomes from the US Navy's operational, assimilating, high-resolution general circulation model: Hybrid Coordinate Ocean Model (HYCOM). The area sampled was a highly chaotic region. The overall differences between the model and in situ velocity fields were 0.35 m/s and 43 degrees at the surface and 0.17 m/s and 30 degrees. While HYCOM accurately simulated the placement of the most energetic and persistent features, including the Agulhas Current, ARC, and a warm core eddy east of ARC, the front was generally misplaced, and the core current speed was under forecast. C1 [Savage, Jonathan A.; Tokmakian, Robin T.; Batteen, Mary L.] US Navy, Naval Postgrad Sch, Dept Oceanog, Monterey, CA USA. RP Tokmakian, RT (reprint author), US Navy, Naval Postgrad Sch, Dept Oceanog, Monterey, CA USA. EM rtt@nps.edu NR 16 TC 0 Z9 0 U1 1 U2 1 PU TAYLOR & FRANCIS LTD PI ABINGDON PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND SN 1755-876X EI 1755-8778 J9 J OPER OCEANOGR JI J. Oper. Oceanogr. PY 2015 VL 8 IS 1 BP 11 EP 23 DI 10.1080/1755876X.2015.1014637 PG 13 WC Meteorology & Atmospheric Sciences; Oceanography SC Meteorology & Atmospheric Sciences; Oceanography GA DA9HC UT WOS:000368118600002 ER PT J AU Brassington, GB Martin, MJ Tolman, HL Akella, S Balmeseda, M Chambers, CRS Chassignet, E Cummings, JA Drillet, Y Jansen, PAEM Laloyaux, P Lea, D Mehra, A Mirouze, I Ritchie, H Samson, G Sandery, PA Smith, GC Suarez, M Todling, R AF Brassington, G. B. Martin, M. J. Tolman, H. L. Akella, S. Balmeseda, M. Chambers, C. R. S. Chassignet, E. Cummings, J. A. Drillet, Y. Jansen, P. A. E. M. Laloyaux, P. Lea, D. Mehra, A. Mirouze, I. Ritchie, H. Samson, G. Sandery, P. A. Smith, G. C. Suarez, M. Todling, R. TI Progress and challenges in short- to medium-range coupled prediction SO JOURNAL OF OPERATIONAL OCEANOGRAPHY LA English DT Article ID SEA-SURFACE TEMPERATURE; DATA ASSIMILATION; HURRICANE INTENSITY; OCEAN INTERACTION; SYSTEM; MODEL; ATMOSPHERE; CLIMATE; SIMULATIONS; GODAE AB The availability of GODAE Oceanview-type ocean forecast systems provides the opportunity to develop high-resolution, short-to medium-range coupled prediction systems. Several groups have undertaken the first experiments based on relatively unsophisticated approaches. Progress is being driven at the institutional level targeting a range of applications that represent their respective national interests with clear overlaps and opportunities for information exchange and collaboration. The applications include forecasting of the general circulation, hurricanes, extra-tropical storms, high-latitude weather and coastal air-sea interaction. In some cases, research has moved beyond case and sensitivity studies to controlled experiments to obtain statistically significant metrics and operational predictions. C1 [Brassington, G. B.; Sandery, P. A.] Australian Bur Meteorol, CAWCR, Melbourne, Vic, Australia. [Martin, M. J.; Lea, D.; Mirouze, I.] UK Met Off, Exeter, Devon, England. [Tolman, H. L.; Mehra, A.] NOAA, Environm Modeling Ctr, NCEP, Bethesda, MD USA. [Akella, S.; Suarez, M.; Todling, R.] NASA, Global Modeling & Assimilat Off, Bethesda, MD USA. [Balmeseda, M.; Jansen, P. A. E. M.; Laloyaux, P.] ECMWF, Reading, Berks, England. [Chambers, C. R. S.] Univ Melbourne, Melbourne, Vic, Australia. [Chassignet, E.] Florida State Univ, COAPS, Tallahassee, FL 32306 USA. [Cummings, J. A.] NRL, Monterey, CA USA. [Drillet, Y.; Samson, G.] Mercator Ocean, Toulouse, France. [Ritchie, H.] Environm Canada, Dartmouth, NS, Canada. [Smith, G. C.] Environm Canada, Dorval, PQ, Canada. RP Brassington, GB (reprint author), Australian Bur Meteorol, CAWCR, Melbourne, Vic, Australia. EM g.brassington@bom.gov.au NR 79 TC 5 Z9 5 U1 3 U2 6 PU TAYLOR & FRANCIS LTD PI ABINGDON PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND SN 1755-876X EI 1755-8778 J9 J OPER OCEANOGR JI J. Oper. Oceanogr. PY 2015 VL 8 SU 2 SI SI BP S239 EP S258 DI 10.1080/1755876X.2015.1049875 PG 20 WC Meteorology & Atmospheric Sciences; Oceanography SC Meteorology & Atmospheric Sciences; Oceanography GA DA9GU UT WOS:000368117800004 ER PT J AU Martin, MJ Balmaseda, M Bertino, L Brasseur, P Brassington, G Cummings, J Fujii, Y Lea, DJ Lellouche, JM Mogensen, K Oke, PR Smith, GC Testut, CE Waagbo, GA Waters, J Weaver, AT AF Martin, M. J. Balmaseda, M. Bertino, L. Brasseur, P. Brassington, G. Cummings, J. Fujii, Y. Lea, D. J. Lellouche, J. -M. Mogensen, K. Oke, P. R. Smith, G. C. Testut, C. -E. Waagbo, G. A. Waters, J. Weaver, A. T. TI Status and future of data assimilation in operational oceanography SO JOURNAL OF OPERATIONAL OCEANOGRAPHY LA English DT Article ID OCEAN DATA ASSIMILATION; NORTH-ATLANTIC; SYSTEM; TEMPERATURE; ERROR; MODEL; REPRESENTATION; UNCERTAINTIES; SALINITY; IMPACT AB The GODAE OceanView systems use various data assimilation algorithms, including 3DVar, EnOI, EnKF and the SEEK filter with a fixed basis, using different time windows. The main outputs of the operational data assimilation systems, the increments, have been compared for February 2014 in various regions. The eddy-permitting systems' increments are similar in a number of the regions, indicating similar forecast errors are being corrected, while the eddy-resolving systems represent smaller-scale structures in the mid-latitude regions investigated and appear to have smaller biases. Monthly average temperature increments show significant SST biases, particularly in the systems which assimilate swath satellite SST data, indicating systematic errors in the surface heat fluxes and the way in which they are propagated vertically by the ocean models. On-going developments to the data assimilation systems include improvements to the specification of error covariances, improving assimilation of data near the equator, and understanding the effect of assimilation on the Atlantic Meridional Overturning Circulation. Longer term developments are expected to include the implementation of more advanced algorithms to make use of flow-dependent error covariance information. Assimilation of new data sources over the coming years, such as wide-swath altimetry, is also expected to improve the accuracy of ocean state estimates and forecasts provided by the GODAE OceanView systems. C1 [Martin, M. J.; Lea, D. J.; Waters, J.] Met Off, Exeter, Devon, England. [Balmaseda, M.; Mogensen, K.] ECMWF, Reading, Berks, England. [Bertino, L.] NERSC, Bergen, Norway. [Brasseur, P.] CNRS LGGE, Grenoble, France. [Brassington, G.] Bur Meteorol, Melbourne, Vic, Australia. [Cummings, J.] NRL, Monterey, CA USA. [Fujii, Y.] JMA MRI, Tsukuba, Ibaraki, Japan. [Lellouche, J. -M.; Testut, C. -E.] Mercator Ocean, Toulouse, France. [Oke, P. R.] CSIRO, Hobart, Tas, Australia. [Smith, G. C.] Environm Canada, Montreal, PQ, Canada. [Waagbo, G. A.] Norwegian Meteorol Inst, Oslo, Norway. [Weaver, A. T.] CERFACS, F-31057 Toulouse, France. RP Martin, MJ (reprint author), Met Off, Exeter, Devon, England. EM matthew.martin@metoffice.gov.uk NR 39 TC 7 Z9 7 U1 1 U2 4 PU TAYLOR & FRANCIS LTD PI ABINGDON PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND SN 1755-876X EI 1755-8778 J9 J OPER OCEANOGR JI J. Oper. Oceanogr. PY 2015 VL 8 SU 1 SI SI BP S28 EP S48 DI 10.1080/1755876X.2015.1022055 PG 21 WC Meteorology & Atmospheric Sciences; Oceanography SC Meteorology & Atmospheric Sciences; Oceanography GA DA9GS UT WOS:000368117600003 ER PT J AU Tonani, M Balmaseda, M Bertino, L Blockley, E Brassington, G Davidson, F Drillet, Y Hogan, P Kuragano, T Lee, T Mehra, A Paranathara, F Tanajura, CAS Wang, H AF Tonani, Marina Balmaseda, Magdalena Bertino, Laurent Blockley, Ed Brassington, Gary Davidson, Fraser Drillet, Yann Hogan, Pat Kuragano, Tsurane Lee, Tong Mehra, Avichal Paranathara, Francis Tanajura, Clemente A. S. Wang, Hui TI Status and future of global and regional ocean prediction systems SO JOURNAL OF OPERATIONAL OCEANOGRAPHY LA English DT Article ID MEDITERRANEAN SEA; MODEL; ASSIMILATION; ATLANTIC; SURFACE; JAPAN AB Operational evolution of global and regional ocean forecasting systems has been extremely significant in recent years. Global Ocean Data Assimilation Experiment (GODAE) Oceanview supports the national research groups providing them with coordination and sharing expertise among the partners. Several systems have been set up and developed pre-operationally, and the majority of these are now fully operational; at the present time, they provide medium-and long-term forecasts of the most relevant ocean physical variables. These systems are based on ocean general circulation models and data-assimilation techniques that are able to correct the model with the information inferred from different types of observations. A few systems also incorporate a biogeochemical component coupled with the physical system, while others are based on coupled ocean-wave-ice-atmosphere models. The products are routinely validated with observations in order to assess their quality. Data and product implementation and organization, as well as service, for users have been well tried and tested, and most of the products are now available to users. The interaction with different users is an important factor in the development process. This paper provides a synthetic overview of the GODAE OceanView prediction systems. C1 [Tonani, Marina] Ist Nazl Geofis & Vulcanol, Bologna, Italy. [Balmaseda, Magdalena] European Ctr Medium Range Weather Forecasts, Reading RG2 9AX, Berks, England. [Bertino, Laurent] Nansen Environm & Remote Sensing Ctr, Bergen, Norway. [Blockley, Ed] Met Off, Exeter, Devon, England. [Brassington, Gary] Bur Meteorol, Melbourne, Vic, Australia. [Davidson, Fraser] Fisheries & Oceans Canada, Northwest Atlantic Fisheries Ctr, Toronto, ON, Canada. [Drillet, Yann] Mercator Ocean, Toulouse, France. [Hogan, Pat] NRL, Stennis Space Ctr, MS USA. [Kuragano, Tsurane] JMA, Meteorol Res Inst, Tokyo, Japan. [Lee, Tong] CALTECH, Jet Prop Lab, Pasadena, CA USA. [Mehra, Avichal] NOAA, Natl Ctr Environm Predict, College Pk, MD USA. [Paranathara, Francis] Indian Natl Ctr Ocean Informat Serv, New Delhi, India. [Tanajura, Clemente A. S.] Univ Fed Bahia, Inst Phys, Salvador, BA, Brazil. [Wang, Hui] NMEFC, Beijing, Peoples R China. RP Tonani, M (reprint author), Ist Nazl Geofis & Vulcanol, Bologna, Italy. EM marina.tonani@metoffice.gov.uk FU European Community [H2020-Adhoc-2014-20]; Italian Project RITMARE, La RIcerca iTaliana per il MARE (MIUR-Progetto Bandiera); UK Ministry of Defence FX Funding support from the European Community's MyOcean Follow On Project (H2020-Adhoc-2014-20 Pre-Operational Marine Service Continuity in transition towards Copernicus), from the Italian Project RITMARE, La RIcerca iTaliana per il MARE (MIUR-Progetto Bandiera 2012-2016) and from the UK Ministry of Defence is gratefully acknowledged. NR 47 TC 10 Z9 11 U1 2 U2 3 PU TAYLOR & FRANCIS LTD PI ABINGDON PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXON, ENGLAND SN 1755-876X EI 1755-8778 J9 J OPER OCEANOGR JI J. Oper. Oceanogr. PY 2015 VL 8 SU 2 SI SI BP S201 EP S220 DI 10.1080/1755876X.2015.1049892 PG 20 WC Meteorology & Atmospheric Sciences; Oceanography SC Meteorology & Atmospheric Sciences; Oceanography GA DA9GU UT WOS:000368117800002 ER PT S AU Caldwell, JD Lindsey, L Giannini, V Vurgaftman, I Reinecke, TL Maier, SA Glembocki, OJ AF Caldwell, Joshua D. Lindsey, Lucas Giannini, Vincenzo Vurgaftman, Igor Reinecke, Thomas L. Maier, Stefan A. Glembocki, Orest J. BE Engheta, N Noginov, MA Zheludev, NI TI Towards low-loss, infrared and THz nanophotonics and metamaterials: surface phonon polariton modes in polar dielectric crystals SO METAMATERIALS, METADEVICES, AND METASYSTEMS 2015 SE Proceedings of SPIE LA English DT Meeting Abstract CT Conference on Metamaterials, Metadevices, and Metasystems CY AUG 09-13, 2015 CL San Diego, CA SP SPIE C1 [Caldwell, Joshua D.; Vurgaftman, Igor; Reinecke, Thomas L.] US Naval Res Lab, Washington, DC USA. [Lindsey, Lucas; Glembocki, Orest J.] Oak Ridge Natl Lab, Oak Ridge, TN USA. [Giannini, Vincenzo; Maier, Stefan A.] Univ London Imperial Coll Sci Technol & Med, London SW7 2AZ, England. RI Caldwell, Joshua/B-3253-2008 OI Caldwell, Joshua/0000-0003-0374-2168 NR 0 TC 0 Z9 0 U1 2 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 978-1-62841-710-4 J9 PROC SPIE PY 2015 VL 9544 AR 954412 DI 10.1117/12.2187019 PG 1 WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Optics SC Science & Technology - Other Topics; Materials Science; Optics GA BE1IY UT WOS:000368010300027 ER PT S AU Caldwell, JD Kretinin, AV Chen, YG Giannini, V Fogler, MM Francescato, Y Ellis, CT Tischler, JG Woods, CR Giles, AJ Watanabe, K Taniguchi, T Maier, SA Novoselov, KS AF Caldwell, Joshua D. Kretinin, Andrey V. Chen, Yiguo Giannini, Vincenzo Fogler, Michael M. Francescato, Yan Ellis, Chase T. Tischler, Joseph G. Woods, Colin R. Giles, Alexander J. Watanabe, Kenji Taniguchi, Takashi Maier, Stefan A. Novoselov, Kostya S. BE Engheta, N Noginov, MA Zheludev, NI TI Sub-diffractional, volume-confined polaritons in a natural hyperbolic material: hexagonal boron nitride SO METAMATERIALS, METADEVICES, AND METASYSTEMS 2015 SE Proceedings of SPIE LA English DT Meeting Abstract CT Conference on Metamaterials, Metadevices, and Metasystems CY AUG 09-13, 2015 CL San Diego, CA SP SPIE C1 [Caldwell, Joshua D.; Ellis, Chase T.; Tischler, Joseph G.; Giles, Alexander J.] US Naval Res Lab, Washington, DC USA. [Kretinin, Andrey V.; Woods, Colin R.; Novoselov, Kostya S.] Univ Manchester, Manchester M13 9PL, Lancs, England. [Chen, Yiguo; Giannini, Vincenzo; Francescato, Yan; Maier, Stefan A.] Univ London Imperial Coll Sci Technol & Med, London SW7 2AZ, England. [Fogler, Michael M.] Univ Calif San Diego, San Diego, CA 92103 USA. [Taniguchi, Takashi] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan. RI Novoselov, Kostya/G-9581-2014; Caldwell, Joshua/B-3253-2008; Kretinin, Andrey/L-5122-2013; TANIGUCHI, Takashi/H-2718-2011 OI Novoselov, Kostya/0000-0003-4972-5371; Caldwell, Joshua/0000-0003-0374-2168; NR 0 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 978-1-62841-710-4 J9 PROC SPIE PY 2015 VL 9544 AR 95440R DI 10.1117/12.2187028 PG 1 WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Optics SC Science & Technology - Other Topics; Materials Science; Optics GA BE1IY UT WOS:000368010300018 ER PT S AU Pique, A Charipar, NA Kim, H Breckenfeld, E Mathews, SA AF Pique, Alberto Charipar, Nicholas A. Kim, Heungsoo Breckenfeld, Eric Mathews, Scott A. BE Engheta, N Noginov, MA Zheludev, NI TI Laser processing of metamaterial structures SO METAMATERIALS, METADEVICES, AND METASYSTEMS 2015 SE Proceedings of SPIE LA English DT Meeting Abstract CT Conference on Metamaterials, Metadevices, and Metasystems CY AUG 09-13, 2015 CL San Diego, CA SP SPIE C1 [Pique, Alberto; Charipar, Nicholas A.; Kim, Heungsoo; Breckenfeld, Eric; Mathews, Scott A.] US Naval Res Lab, Washington, DC USA. NR 0 TC 0 Z9 0 U1 4 U2 5 PU SPIE-INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA SN 0277-786X BN 978-1-62841-710-4 J9 PROC SPIE PY 2015 VL 9544 AR 95441M DI 10.1117/12.2191645 PG 1 WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Optics SC Science & Technology - Other Topics; Materials Science; Optics GA BE1IY UT WOS:000368010300044 ER PT S AU Cramer, JA AF Cramer, Jeffrey A. BE Lavine, BK Brown, SD Booksh, KS TI Approaching the Chemometric Modeling of Realistically Diverse Biochemical Data SO 40 YEARS OF CHEMOMETRICS - FROM BRUCE KOWALSKI TO THE FUTURE SE ACS Symposium Series LA English DT Proceedings Paper CT Symposium on the Birth of Chemometrics - In Honor and Memory of Bruce Kowalski CY OCT 01, 2013 CL Milwaukee, WI SP Federat Anal Spectroscopy Soc, Amer Chem Soc, Div Comp & Chem ID SPECTROMETRY-BASED METABOLOMICS; IMAGING MASS-SPECTROMETRY; FED-BATCH CULTIVATIONS; GENOMIC DATA; LC-MS; BIOMARKER DISCOVERY; SENSOR COMBINATION; MYXOCOCCUS-XANTHUS; FEATURE-SELECTION; CROSS-LINKING AB Every biomolecule can potentially interact with every other biomolecule with which it comes into contact. This large and diverse array of potential biomolecules and potential interactions becomes problematic when attempting to produce predictive biochemical models intended to reliably derive actionable information under the maximum possible number of realistic circumstances. The following chapter presents an overview of how biochemical modeling challenges have historically been addressed in -omics fields using the tools found in chemometrics and related statistical analysis and data modeling fields, as well as how the challenge of realistic and robust biochemical analysis and modeling might be addressed in the future. C1 [Cramer, Jeffrey A.] Naval Res Lab, Washington, DC 20375 USA. RP Cramer, JA (reprint author), Naval Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA. EM jeffrey.cramer@nrl.navy.mil NR 101 TC 0 Z9 0 U1 4 U2 4 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 SIXTEENTH ST NW, WASHINGTON, DC 20036 USA SN 0097-6156 BN 978-0-8412-3097-2; 978-0-8412-3098-9 J9 ACS SYM SER JI ACS Symp. Ser. PY 2015 VL 1199 BP 283 EP 298 PG 16 WC Chemistry, Analytical; Computer Science, Interdisciplinary Applications; Mathematics, Interdisciplinary Applications SC Chemistry; Computer Science; Mathematics GA BE1DY UT WOS:000367760300012 ER PT J AU Cunha, JM Arkes, J Lester, PB Shen, YC AF Cunha, Jesse M. Arkes, Jeremy Lester, Paul B. Shen, Yu-Chu TI Employee retention and psychological health: evidence from military recruits SO APPLIED ECONOMICS LETTERS LA English DT Article DE retention; psychological health; attrition; military; recruiting AB We estimate the relationship between psychological attributes of US Army recruits soon after enlistment and their propensity to leave service. We find that those with the worst psychological health are more likely to terminate employment, and we show how identifying psychologically unfit candidates prior to their employment can reduce the likelihood of future turnover and associated personnel costs. These findings have broad application to other stressful occupations such as firefighters, policemen and first-responders. C1 [Cunha, Jesse M.; Arkes, Jeremy; Shen, Yu-Chu] Naval Postgrad Sch, Grad Sch Business & Publ Policy, Monterey, CA 93943 USA. [Lester, Paul B.] Res Facilitat Lab, Monterey, CA USA. [Shen, Yu-Chu] Natl Bur Econ Res, Cambridge, MA 02138 USA. RP Shen, YC (reprint author), Naval Postgrad Sch, Grad Sch Business & Publ Policy, Monterey, CA 93943 USA. EM yshen@nps.edu FU U.S. Department of the Army under MIPR [10419538] FX This work was supported by the U.S. Department of the Army under MIPR #10419538. NR 5 TC 1 Z9 1 U1 0 U2 3 PU ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD PI ABINGDON PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXFORDSHIRE, ENGLAND SN 1350-4851 EI 1466-4291 J9 APPL ECON LETT JI Appl. Econ. Lett. PY 2015 VL 22 IS 18 BP 1505 EP 1510 DI 10.1080/13504851.2015.1042136 PG 6 WC Economics SC Business & Economics GA DA5MW UT WOS:000367848200013 ER PT S AU Kanaev, AV AF Kanaev, A. V. BE Kamerman, G Steinvall, O Lewis, KL Gonglewski, JD TI Compact full-motion video hyperspectral cameras: development, image processing, and applications SO ELECTRO-OPTICAL REMOTE SENSING, PHOTONIC TECHNOLOGIES, AND APPLICATIONS IX SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Electro-Optical Remote Sensing, Photonic Technologies, and Applications IX CY SEP 21-22, 2015 CL Toulouse, FRANCE SP SPIE DE demosaicking; super-resolution; mosaic-array cameras ID SUPERRESOLUTION AB Emergence of spectral pixel-level color filters has enabled development of hyper-spectral Full Motion Video (FMV) sensors operating in visible (EO) and infrared (IR) wavelengths. The new class of hyper-spectral cameras opens broad possibilities of its utilization for military and industry purposes. Indeed, such cameras are able to classify materials as well as detect and track spectral signatures continuously in real time while simultaneously providing an operator the benefit of enhanced-discrimination-color video. Supporting these extensive capabilities requires significant computational processing of the collected spectral data. In general, two processing streams are envisioned for mosaic array cameras. The first is spectral computation that provides essential spectral content analysis e.g. detection or classification. The second is presentation of the video to an operator that can offer the best display of the content depending on the performed task e.g. providing spatial resolution enhancement or color coding of the spectral analysis. These processing streams can be executed in parallel or they can utilize each other's results. The spectral analysis algorithms have been developed extensively, however demosaicking of more than three equally-sampled spectral bands has been explored scarcely. We present unique approach to demosaicking based on multi-band super-resolution and show the trade-off between spatial resolution and spectral content. Using imagery collected with developed 9-band SWIR camera we demonstrate several of its concepts of operation including detection and tracking. We also compare the demosaicking results to the results of multi-frame super-resolution as well as to the combined multi-frame and multi-band processing. C1 [Kanaev, A. V.] US Naval Res Lab, Washington, DC 20375 USA. RP Kanaev, AV (reprint author), US Naval Res Lab, 4555 Overlook Av NE, Washington, DC 20375 USA. NR 12 TC 0 Z9 0 U1 3 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 978-1-62841-859-0 J9 PROC SPIE PY 2015 VL 9649 AR 96490R DI 10.1117/12.2196718 PG 7 WC Engineering, Electrical & Electronic; Remote Sensing; Optics SC Engineering; Remote Sensing; Optics GA BE0YP UT WOS:000367451000024 ER PT J AU Mysliwiec, V Matsangas, P Gill, J Baxter, T O'Reilly, B Collen, JF Roth, BJ AF Mysliwiec, Vincent Matsangas, Panagiotis Gill, Jessica Baxter, Tristin O'Reilly, Brian Collen, Jacob F. Roth, Bernard J. TI A Comparative Analysis of Sleep Disordered Breathing in Active Duty Service Members with and without Combat-Related Posttraumatic Stress Disorder SO JOURNAL OF CLINICAL SLEEP MEDICINE LA English DT Article DE obstructive sleep apnea; posttraumatic stress; disorder; depression; military; combat ID US MILITARY PERSONNEL; APNEA; PTSD; VETERANS; QUALITY; ADHERENCE; CPAP; NIGHTMARES; DEPRESSION; INSOMNIA AB Study Objectives: Posttraumatic stress disorder (PTSD) and obstructive sleep apnea (OSA) are frequently co-occurring illnesses. The purpose of this study was to determine whether comorbid PTSD/OSA is associated with increased PTSD symptoms or decreased OSA severity compared to PTSD or OSA alone in recently deployed Active Duty Service Members (ADSM). Methods: Cross-sectional observational study of ADSM who returned from combat within 24 months. Participants underwent an attended diagnostic polysomnogram and were assessed for PTSD, depression, combat exposure severity, sleepiness, and sleep quality with validated clinical instruments. Results: Our study included 109 military personnel who returned from a combat deployment within 24 months with a mean age of 34.3 +/- 8.23 and BMI of 30.8 +/- 3.99. Twenty-four participants had PTSD/OSA, 68 had OSA, and 17 had PTSD. Mean PTSD Checklist- Military Version (PCL-M) scores were 62.0 +/- 8.95, 60.5 +/- 4.73, and 32.5 +/- 8.95 in PTSD/OSA, PTSD, and OSA, respectively. The mean AHI was 16.9 +/- 15.0, 18.9 +/- 17.0, and 1.73 +/- 1.3 for those with PTSD/OSA, OSA, and PTSD. PTSD symptoms and OSA severity in military personnel with comorbid PTSD/OSA were not significantly different from those with PTSD or OSA alone. On multivariate analysis, BMI was a significant predictor of OSA (OR, 1.21; 95% CI, 1.04-1.44) and age trended towards significance. Depression, but not OSA severity, was associated with PTSD symptoms. Conclusions: Following recent combat exposure, comorbid PTSD/OSA is not associated with increased PTSD symptoms or decreased severity of OSA. Early evaluation after traumatic exposure for comorbid OSA is indicated in PTSD patients with sleep complaints given the high co-occurrence and adverse clinical implications. C1 [Mysliwiec, Vincent] 121st Gen Hosp, Med Specialties Clin Unit 15281, Seoul, South Korea. [Matsangas, Panagiotis] Naval Postgraduate Sch, Dept Operat Res, Monterey, CA USA. [Gill, Jessica] NINR, NIH, Bethesda, MD 20892 USA. [Baxter, Tristin; O'Reilly, Brian; Roth, Bernard J.] Madigan Army Med Ctr, Tacoma, WA 98431 USA. [Collen, Jacob F.] Brooke Army Med Ctr, Jbsa Ft Sam Houston, TX USA. RP Mysliwiec, V (reprint author), Wilford Hall Ambulatory Surg Ctr, Med Wing 59, Sleep Disorders Ctr, 2200 Berquist Dr,Suite 1, Joint Base Lackland, TX 78236 USA. EM vincent.mysliwiec.mil@mail.mil NR 35 TC 1 Z9 1 U1 2 U2 5 PU AMER ACAD SLEEP MEDICINE PI WESTCHESTER PA ONE WESTBROOK CORPORATE CTR, STE 920, WESTCHESTER, IL 60154 USA SN 1550-9389 EI 1550-9397 J9 J CLIN SLEEP MED JI J. Clin. Sleep Med. PY 2015 VL 11 IS 12 BP 1393 EP 1401 AR PII jc-00183-15 DI 10.5664/jcsm.5272 PG 9 WC Clinical Neurology SC Neurosciences & Neurology GA DA1UT UT WOS:000367581700007 PM 26156954 ER PT S AU Kridel, D Dolk, D Castillo, D AF Kridel, Donald Dolk, Daniel Castillo, David BE Bui, TX Sprague, RH TI Adaptive Modeling for Real Time Analytics: The Case of "Big Data" in Mobile Advertising SO 2015 48TH HAWAII INTERNATIONAL CONFERENCE ON SYSTEM SCIENCES (HICSS) SE Proceedings of the Annual Hawaii International Conference on System Sciences LA English DT Proceedings Paper CT 48th Annual Hawaii International Conference on System Sciences (HICSS) CY JAN 05-08, 2015 CL Kauai, HI SP IEEE Comp Soc, Univ Hawaii, Shidler Coll Business, Univ Hawaii, Dept EE, Univ Hawaii, Informat Sci Program, ONR, AFOSR, Natl Sci Fdn, IEEE Syst Sci & Cybernet Soc, ACM, SIAM, IEEE Hawaii Sect, IEEE Control Syst Soc, IEEE Grp Informat Theory, IEEE Grp Automat Control, ARO, Reg Med Program Hawaii, Univ Hawaii, Coll Business Adm, Nasdaq AB Mobile marketing campaigns are now largely deployed through the intermediaries of demand side platforms (DSPs) who provide a performance intensive real-time bidding (RTB) version of predictive analytics as a service. Performance thresholds are roughly 100ms for DSPs to decide whether and how much to bid for a potential client to receive a particular advertisement via their mobile device This decision requires simultaneous access to multiple very large databases with typically millions of rows and the ability to execute multiple predictive models (e.g., logistic regression) to gauge the customer's propensity to engage. In this environment, analytic modeling must be automated via model feedback loops which adjust the models dynamically as real time data streams in. We call this mode of analytics adaptive modeling. We detail the process of adaptive modeling from the perspective of a DSP and describe the corresponding model management environment necessary to plan, execute, and evaluate RTB campaigns. C1 [Kridel, Donald] St Louis Univ, St Louis, MO 63103 USA. [Dolk, Daniel] Naval Postgrad Sch, Monterey, CA USA. [Castillo, David] Voltari Com, New York, NY USA. RP Kridel, D (reprint author), St Louis Univ, St Louis, MO 63103 USA. EM dkridel@gmail.com; drdolk@nps.edu; David.Castillo@voltari.com NR 12 TC 0 Z9 0 U1 3 U2 10 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 978-1-4799-7367-5 J9 P ANN HICSS PY 2015 BP 887 EP 896 DI 10.1109/HICSS.2015.111 PG 10 WC Computer Science, Information Systems; Computer Science, Theory & Methods; Operations Research & Management Science SC Computer Science; Operations Research & Management Science GA BE0LK UT WOS:000366264101001 ER PT S AU Goul, M Balkan, S Dolk, D AF Goul, Michael Balkan, Sule Dolk, Dan BE Bui, TX Sprague, RH TI Predictive Analytics-Driven Campaign Management Support Systems SO 2015 48TH HAWAII INTERNATIONAL CONFERENCE ON SYSTEM SCIENCES (HICSS) SE Proceedings of the Annual Hawaii International Conference on System Sciences LA English DT Proceedings Paper CT 48th Annual Hawaii International Conference on System Sciences (HICSS) CY JAN 05-08, 2015 CL Kauai, HI SP IEEE Comp Soc, Univ Hawaii, Shidler Coll Business, Univ Hawaii, Dept EE, Univ Hawaii, Informat Sci Program, ONR, AFOSR, Natl Sci Fdn, IEEE Syst Sci & Cybernet Soc, ACM, SIAM, IEEE Hawaii Sect, IEEE Control Syst Soc, IEEE Grp Informat Theory, IEEE Grp Automat Control, ARO, Reg Med Program Hawaii, Univ Hawaii, Coll Business Adm, Nasdaq AB This paper uses design science research foundations to establish requirements for predictive analytics-driven Campaign Management Support Systems (CMSS). We assert the "campaign" as the unit of analysis for these systems, because campaign management is central to the marriage of marketing resource management and the ideals of demand/customer-driven supply chains. Current CMMS are fragmented, disconnected and batch-oriented - they are not enterprise-centric. They do not address governance, integrated deployment or the risk of unexpected consequences of campaigns gone awry. However, they should given examples of recent campaign failures at Target and other companies. Further, they do not support domain specific performance measurement and monitoring. We develop requirements for CMSS. We provide a conceptual architecture and monitoring engine. The architecture and engine are founded in vigilant information systems design theory. The CMSS design builds on earlier research in a predictive analytics deployment methodology called "DEEPER." C1 [Goul, Michael] Arizona State Univ, Tempe, AZ 85287 USA. [Balkan, Sule] Natl Chiao Tung Univ, Hsinchu 30050, Taiwan. [Dolk, Dan] Naval Postgrad Sch, Monterey, CA USA. RP Goul, M (reprint author), Arizona State Univ, Tempe, AZ 85287 USA. EM michael.goul@asu.edu; sule@nctu.edu.tw; drdolk@nps.edu NR 26 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 978-1-4799-7367-5 J9 P ANN HICSS PY 2015 BP 4782 EP 4791 DI 10.1109/HICSS.2015.568 PG 10 WC Computer Science, Information Systems; Computer Science, Theory & Methods; Operations Research & Management Science SC Computer Science; Operations Research & Management Science GA BE0LK UT WOS:000366264104105 ER PT S AU Paxton, NC Jang, DI Russell, S Ahn, GJ Moskowitz, IS Hyden, P AF Paxton, Napoleon C. Jang, Dae-il Russell, Stephen Ahn, Gail-Joon Moskowitz, Ira S. Hyden, Paul BE Bui, TX Sprague, RH TI Utilizing Network Science and Honeynets for Software Induced Cyber Incident Analysis SO 2015 48TH HAWAII INTERNATIONAL CONFERENCE ON SYSTEM SCIENCES (HICSS) SE Proceedings of the Annual Hawaii International Conference on System Sciences LA English DT Proceedings Paper CT 48th Annual Hawaii International Conference on System Sciences (HICSS) CY JAN 05-08, 2015 CL Kauai, HI SP IEEE Comp Soc, Univ Hawaii, Shidler Coll Business, Univ Hawaii, Dept EE, Univ Hawaii, Informat Sci Program, ONR, AFOSR, Natl Sci Fdn, IEEE Syst Sci & Cybernet Soc, ACM, SIAM, IEEE Hawaii Sect, IEEE Control Syst Soc, IEEE Grp Informat Theory, IEEE Grp Automat Control, ARO, Reg Med Program Hawaii, Univ Hawaii, Coll Business Adm, Nasdaq AB Increasing situational awareness and investigating the cause of a software-induced cyber attack continues to be one of the most difficult yet important endeavors faced by network security professionals. Traditionally, these forensic pursuits are carried out by manually analyzing the malicious software agents at the heart of the incident, and then observing their interactions in a controlled environment. Both these steps are time consuming and difficult to maintain due to the ever changing nature of malicious software. In this paper we introduce a network science based framework which conducts incident analysis on a dataset by constructing and analyzing relational communities. Construction of these communities is based on the connections of topological features formed when actors communicate with each other. We evaluate our framework using a network trace of the BlackEnergy malware network, captured by our honeynet. We have found that our approach is accurate, efficient, and could prove as a viable alternative to the current status quo. C1 [Paxton, Napoleon C.; Russell, Stephen; Moskowitz, Ira S.; Hyden, Paul] US Naval Res Lab, Washington, DC 20375 USA. [Jang, Dae-il; Ahn, Gail-Joon] Arizona State Univ, Tempe, AZ 85287 USA. RP Paxton, NC (reprint author), US Naval Res Lab, Washington, DC 20375 USA. EM napoleon.paxton@nrl.navy.mil; daelsmail@gmail.com; stephen.russell@nrl.navy.mil; gahn@asu.edu; ira.moskowitz@nrl.navy.mil; paul.hyden@nrl.navy.mil NR 22 TC 0 Z9 0 U1 4 U2 5 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 978-1-4799-7367-5 J9 P ANN HICSS PY 2015 BP 5244 EP 5252 DI 10.1109/HICSS.2015.619 PG 9 WC Computer Science, Information Systems; Computer Science, Theory & Methods; Operations Research & Management Science SC Computer Science; Operations Research & Management Science GA BE0LK UT WOS:000366264105047 ER PT S AU Biagioni, E McEachen, J Tummala, M AF Biagioni, Edoardo McEachen, John Tummala, Murali BE Bui, TX Sprague, RH TI Introduction to HICCS-47 Wireless Networks Minitrack SO 2015 48TH HAWAII INTERNATIONAL CONFERENCE ON SYSTEM SCIENCES (HICSS) SE Proceedings of the Annual Hawaii International Conference on System Sciences LA English DT Proceedings Paper CT 48th Annual Hawaii International Conference on System Sciences (HICSS) CY JAN 05-08, 2015 CL Kauai, HI SP IEEE Comp Soc, Univ Hawaii, Shidler Coll Business, Univ Hawaii, Dept EE, Univ Hawaii, Informat Sci Program, ONR, AFOSR, Natl Sci Fdn, IEEE Syst Sci & Cybernet Soc, ACM, SIAM, IEEE Hawaii Sect, IEEE Control Syst Soc, IEEE Grp Informat Theory, IEEE Grp Automat Control, ARO, Reg Med Program Hawaii, Univ Hawaii, Coll Business Adm, Nasdaq C1 [Biagioni, Edoardo] Univ Hawaii, Honolulu, HI 96822 USA. [McEachen, John; Tummala, Murali] Naval Postgrad Sch, Monterey, CA USA. RP Biagioni, E (reprint author), Univ Hawaii, Honolulu, HI 96822 USA. EM esb@hawaii.edu; mceachen@nps.edu; mtummala@nps.edu OI Biagioni, Edoardo/0000-0001-8605-0073 NR 0 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 978-1-4799-7367-5 J9 P ANN HICSS PY 2015 BP 5403 EP 5403 DI 10.1109/HICSS.2015.667 PG 1 WC Computer Science, Information Systems; Computer Science, Theory & Methods; Operations Research & Management Science SC Computer Science; Operations Research & Management Science GA BE0LK UT WOS:000366264105066 ER PT S AU Parker, T Johnson, J Tummala, M McEachen, J Scrofani, J AF Parker, Thomas Johnson, Jamie Tummala, Murali McEachen, John Scrofani, James BE Bui, TX Sprague, RH TI Analysis of the Robustness Dynamics of Wireless Mobile Ad Hoc Networks via Time Varying Dual Basis Representation SO 2015 48TH HAWAII INTERNATIONAL CONFERENCE ON SYSTEM SCIENCES (HICSS) SE Proceedings of the Annual Hawaii International Conference on System Sciences LA English DT Proceedings Paper CT 48th Annual Hawaii International Conference on System Sciences (HICSS) CY JAN 05-08, 2015 CL Kauai, HI SP IEEE Comp Soc, Univ Hawaii, Shidler Coll Business, Univ Hawaii, Dept EE, Univ Hawaii, Informat Sci Program, ONR, AFOSR, Natl Sci Fdn, IEEE Syst Sci & Cybernet Soc, ACM, SIAM, IEEE Hawaii Sect, IEEE Control Syst Soc, IEEE Grp Informat Theory, IEEE Grp Automat Control, ARO, Reg Med Program Hawaii, Univ Hawaii, Coll Business Adm, Nasdaq AB Many network models are too complex to readily identify which structural aspects of a network are most influential on robustness. To analyze the dynamics and robustness of a network, many of the protocol details can be reduced to a graph theory representation of nodes, links and link weights. Our method uses the spectral analysis of the Laplacian matrix to decouple the interactions between nodes to analyze the robustness of a wireless mobile ad hoc network (MANET) with a time-varying wireless channel. This spectral analysis and the resulting algebraic connectivity can be used to determine how robust a network is, where the weak links are, and how to best increase overall performance of a network. Using a simulation of wireless devices in a MANET with a time-varying channel, we show that robustness is a function of time, that nodes become coupled and decoupled as the structure of the network changes and that any robustness analysis is more complete when more than a single eigenvalue is evaluated. C1 [Parker, Thomas; Johnson, Jamie; Tummala, Murali; McEachen, John; Scrofani, James] Naval Postgrad Sch, Dept Elect & Comp Engn, Monterey, CA 93943 USA. RP Parker, T (reprint author), Naval Postgrad Sch, Dept Elect & Comp Engn, Monterey, CA 93943 USA. EM tcparke1@nps.edu; jljohns2@nps.edu; mtummala@nps.edu; mceachen@nps.edu; jwscrofa@nps.edu NR 15 TC 1 Z9 1 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 978-1-4799-7367-5 J9 P ANN HICSS PY 2015 BP 5414 EP 5421 DI 10.1109/HICSS.2015.636 PG 8 WC Computer Science, Information Systems; Computer Science, Theory & Methods; Operations Research & Management Science SC Computer Science; Operations Research & Management Science GA BE0LK UT WOS:000366264105068 ER PT S AU McAbee, C Tummala, M McEachen, J AF McAbee, Carson Tummala, Murali McEachen, John BE Bui, TX Sprague, RH TI GSM to UMTS Network Handover Vulnerability Testing Using Software-Defined Radio SO 2015 48TH HAWAII INTERNATIONAL CONFERENCE ON SYSTEM SCIENCES (HICSS) SE Proceedings of the Annual Hawaii International Conference on System Sciences LA English DT Proceedings Paper CT 48th Annual Hawaii International Conference on System Sciences (HICSS) CY JAN 05-08, 2015 CL Kauai, HI SP IEEE Comp Soc, Univ Hawaii, Shidler Coll Business, Univ Hawaii, Dept EE, Univ Hawaii, Informat Sci Program, ONR, AFOSR, Natl Sci Fdn, IEEE Syst Sci & Cybernet Soc, ACM, SIAM, IEEE Hawaii Sect, IEEE Control Syst Soc, IEEE Grp Informat Theory, IEEE Grp Automat Control, ARO, Reg Med Program Hawaii, Univ Hawaii, Coll Business Adm, Nasdaq AB This paper examines a possible vulnerability with the potential for a malicious entity to prevent a mobile device from handing over from a global system for mobile communications (GSM) to universal mobile telecommunications system (UMTS) network because the GSM network maintains the stand-alone dedicated control channel (SDCCH) uplink time slots. The process of testing this vulnerability requires the development of a device that monitors a GSM base transceiver station, identifies when a handover to UMTS message is sent, tracks the time slots of the SDCCH uplink, and transmits a GSM handover-failure message. We present a scheme that utilizes parts of the OpenBTS to transmit a GSM handover-failure message using a software defined radio. The method is validated through the collection of the GSM transmitter messages by Airprobe's GSM-receiver module. C1 [McAbee, Carson; Tummala, Murali; McEachen, John] Naval Postgrad Sch, Monterey, CA 93943 USA. RP McAbee, C (reprint author), Naval Postgrad Sch, Monterey, CA 93943 USA. EM carson.c.mcabee.mil@mail.mil; mtummala@nps.edu; mceachen@nps.edu NR 14 TC 3 Z9 3 U1 1 U2 2 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 978-1-4799-7367-5 J9 P ANN HICSS PY 2015 BP 5422 EP 5431 DI 10.1109/HICSS.2015.638 PG 10 WC Computer Science, Information Systems; Computer Science, Theory & Methods; Operations Research & Management Science SC Computer Science; Operations Research & Management Science GA BE0LK UT WOS:000366264105069 ER PT S AU Roth, J Tummala, M McEachen, J Scrofani, J Hunt, A AF Roth, John Tummala, Murali McEachen, John Scrofani, James Hunt, Allison BE Bui, TX Sprague, RH TI Location Estimation via Sparse Signal Reconstruction in Subsampled Overcomplete Dictionaries for Wireless 4G Networks SO 2015 48TH HAWAII INTERNATIONAL CONFERENCE ON SYSTEM SCIENCES (HICSS) SE Proceedings of the Annual Hawaii International Conference on System Sciences LA English DT Proceedings Paper CT 48th Annual Hawaii International Conference on System Sciences (HICSS) CY JAN 05-08, 2015 CL Kauai, HI SP IEEE Comp Soc, Univ Hawaii, Shidler Coll Business, Univ Hawaii, Dept EE, Univ Hawaii, Informat Sci Program, ONR, AFOSR, Natl Sci Fdn, IEEE Syst Sci & Cybernet Soc, ACM, SIAM, IEEE Hawaii Sect, IEEE Control Syst Soc, IEEE Grp Informat Theory, IEEE Grp Automat Control, ARO, Reg Med Program Hawaii, Univ Hawaii, Coll Business Adm, Nasdaq ID LOCALIZATION AB We present a simple and effective means for position estimation designed to be deployed in urban and dense multipath environments characteristic of 4G wireless networks. To address the multipath channel of such environments a fingerprinting scheme is proposed. One of the drawbacks to this class of methods is the large initial cost associated with establishing a database matrix. This issue is addressed by using a multi-channel filtering method adapted from the H.264 video standard to recover the incomplete data. Position estimation is accomplished via a modified k-nearest neighbor approach to pattern matching. We show through simulation that not only are we able to achieve compelling fidelity in the reconstructed databases from highly incomplete data, but that we are able to do so at a relatively low computational cost. Finally, our results demonstrate that we are able to achieve accurate position estimates vis-a-vis severe undersampling and noisy channel conditions. C1 [Roth, John; Hunt, Allison] US Naval Acad, Dept Elect & Comp Engn, Annapolis, MD 21402 USA. [Tummala, Murali; McEachen, John; Scrofani, James] Naval Postgrad Sch, Dept Elect & Comp Engn, Monterey, CA USA. RP Roth, J (reprint author), US Naval Acad, Dept Elect & Comp Engn, Annapolis, MD 21402 USA. EM jroth@usna.edu NR 24 TC 1 Z9 1 U1 0 U2 1 PU IEEE COMPUTER SOC PI LOS ALAMITOS PA 10662 LOS VAQUEROS CIRCLE, PO BOX 3014, LOS ALAMITOS, CA 90720-1264 USA SN 1060-3425 BN 978-1-4799-7367-5 J9 P ANN HICSS PY 2015 BP 5432 EP 5438 DI 10.1109/HICSS.2015.639 PG 7 WC Computer Science, Information Systems; Computer Science, Theory & Methods; Operations Research & Management Science SC Computer Science; Operations Research & Management Science GA BE0LK UT WOS:000366264105070 ER PT S AU Auslander, B Floyd, MW Apker, T Johnson, B Roberts, M Aha, DW AF Auslander, Bryan Floyd, Michael W. Apker, Thomas Johnson, Benjamin Roberts, Mark Aha, David W. BE Hullermeier, E Minor, M TI Learning to Estimate: A Case-Based Approach to Task Execution Prediction SO CASE-BASED REASONING RESEARCH AND DEVELOPMENT, ICCBR 2015 SE Lecture Notes in Artificial Intelligence LA English DT Proceedings Paper CT 23rd International Conference on Case-Based Reasoning (ICCBR) CY SEP 28-30, 2015 CL Goethe Univ Frankfurt, Forschungskolleg Humanwissenschaften, Bad Homburg, GERMANY HO Goethe Univ Frankfurt, Forschungskolleg Humanwissenschaften AB A system that controls a team of autonomous vehicles should be able to accurately predict the expected outcomes of various subtasks. For example, this may involve estimating how well a vehicle will perform when searching a designated area. We present CBE, a case-based estimation algorithm, and apply it to the task of predicting the performance of autonomous vehicles using simulators of varying fidelity and past performance. Since there are costs to evaluating the performance in simulators (i.e., higher fidelity simulators are more computationally expensive) and in deployment (i.e., potential human injury and deployment expenses), CBE uses a variant of local linear regression to estimate values that cannot be directly evaluated, and incrementally revises its case base. We empirically evaluate CBE on Humanitarian Assistance/Disaster Relief (HA/DR) scenarios and show it to be more accurate than several baselines and more efficient than using a low fidelity simulator. C1 [Auslander, Bryan; Floyd, Michael W.] Knexus Res Corp, Springfield, VA 22153 USA. [Apker, Thomas; Aha, David W.] Naval Res Lab, Navy Ctr Appl Res Artificial Intelligence, Washington, DC 20375 USA. [Johnson, Benjamin; Roberts, Mark] Naval Res Lab, Washington, DC 20375 USA. RP Auslander, B (reprint author), Knexus Res Corp, Springfield, VA 22153 USA. EM bryan.auslander@knexusresearch.com; michael.floyd@knexusresearch.com; thomas.apker@nrl.navy.mil; benjamin.johnson.ctr@nrl.navy.mil; mark.roberts.ctr@nrl.navy.mil; david.aha@nrl.navy.mil NR 23 TC 0 Z9 0 U1 2 U2 2 PU SPRINGER-VERLAG BERLIN PI BERLIN PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY SN 0302-9743 BN 978-3-319-24586-7; 978-3-319-24585-0 J9 LECT NOTES ARTIF INT PY 2015 VL 9343 BP 15 EP 29 DI 10.1007/978-3-319-24586-7_2 PG 15 WC Computer Science, Artificial Intelligence; Computer Science, Interdisciplinary Applications; Robotics SC Computer Science; Robotics GA BE0ZY UT WOS:000367594000002 ER PT S AU Borck, H Karneeb, J Floyd, MW Alford, R Aha, DW AF Borck, Hayley Karneeb, Justin Floyd, Michael W. Alford, Ron Aha, David W. BE Hullermeier, E Minor, M TI Case-Based Policy and Goal Recognition SO CASE-BASED REASONING RESEARCH AND DEVELOPMENT, ICCBR 2015 SE Lecture Notes in Artificial Intelligence LA English DT Proceedings Paper CT 23rd International Conference on Case-Based Reasoning (ICCBR) CY SEP 28-30, 2015 CL Goethe Univ Frankfurt, Forschungskolleg Humanwissenschaften, Bad Homburg, GERMANY HO Goethe Univ Frankfurt, Forschungskolleg Humanwissenschaften DE Policy recognition; Intelligent agents; Goal reasoning; Air combat ID PLAN RECOGNITION AB We present the Policy and Goal Recognizer (PaGR), a case-based system for multiagent keyhole recognition. PaGR is a knowledge recognition component within a decision-making agent that controls simulated unmanned air vehicles in Beyond Visual Range combat. PaGR stores in a case the goal, observations, and policy of a hostile aircraft, and uses cases to recognize the policies and goals of newly-observed hostile aircraft. In our empirical study of PaGR's performance, we report evidence that knowledge of an adversary's goal improves policy recognition. We also show that PaGR can recognize when its assumptions about the hostile agent's goal are incorrect, and can often correct these assumptions. We show that this ability improves PaGR's policy recognition performance in comparison to a baseline algorithm. C1 [Borck, Hayley; Karneeb, Justin; Floyd, Michael W.] Knexus Res Corp, Springfield, VA 22153 USA. [Alford, Ron; Aha, David W.] Naval Res Lab, Navy Ctr Appl Res Artificial Intelligence, Washington, DC 20375 USA. RP Borck, H (reprint author), Knexus Res Corp, Springfield, VA 22153 USA. EM hayley.borck@knexusresearch.com; justin.karneeb@knexusresearch.com; michael.floyd@knexusresearch.com; ronald.alford.ctr@nrl.navy.mil; david.aha@nrl.navy.mil NR 24 TC 0 Z9 0 U1 1 U2 2 PU SPRINGER-VERLAG BERLIN PI BERLIN PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY SN 0302-9743 BN 978-3-319-24586-7; 978-3-319-24585-0 J9 LECT NOTES ARTIF INT PY 2015 VL 9343 BP 30 EP 43 DI 10.1007/978-3-319-24586-7_3 PG 14 WC Computer Science, Artificial Intelligence; Computer Science, Interdisciplinary Applications; Robotics SC Computer Science; Robotics GA BE0ZY UT WOS:000367594000003 ER PT S AU Floyd, MW Drinkwater, M Aha, DW AF Floyd, Michael W. Drinkwater, Michael Aha, David W. BE Hullermeier, E Minor, M TI Improving Trust-Guided Behavior Adaptation Using Operator Feedback SO CASE-BASED REASONING RESEARCH AND DEVELOPMENT, ICCBR 2015 SE Lecture Notes in Artificial Intelligence LA English DT Proceedings Paper CT 23rd International Conference on Case-Based Reasoning (ICCBR) CY SEP 28-30, 2015 CL Goethe Univ Frankfurt, Forschungskolleg Humanwissenschaften, Bad Homburg, GERMANY HO Goethe Univ Frankfurt, Forschungskolleg Humanwissenschaften DE Inverse trust; Behavior adaptation; Adaptable autonomy ID CONVERSATIONAL RECOMMENDER SYSTEMS; PROVENANCE AB It is important for robots to be trusted by their human teammates so that they are used to their full potential. This paper focuses on robots that can estimate their own trustworthiness based on their performance and adapt their behavior to engender trust. Ideally, a robot can receive feedback about its performance from teammates. However, that feedback can be sporadic or non-existent (e.g., if teammates are busy with their own duties), or come in a variety of forms (e.g., different teammates using different vocabularies). We describe a case-based algorithm that allows a robot to learn a model of feedback and use that model to adapt its behavior. We evaluate our system in a simulated robotics domain by showing that a robot can learn a model of operator feedback and use that model to improve behavior adaptation. C1 [Floyd, Michael W.; Drinkwater, Michael] Knexus Res Corp, Springfield, VA 22153 USA. [Aha, David W.] Naval Res Lab, Navy Ctr Appl Res Artificial Intelligence, Washington, DC 20375 USA. RP Floyd, MW (reprint author), Knexus Res Corp, Springfield, VA 22153 USA. EM michael.floyd@knexusresearch.com; michael.drinkwater@knexusresearch.com; david.aha@nrl.navy.mil NR 19 TC 1 Z9 1 U1 0 U2 2 PU SPRINGER-VERLAG BERLIN PI BERLIN PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY SN 0302-9743 BN 978-3-319-24586-7; 978-3-319-24585-0 J9 LECT NOTES ARTIF INT PY 2015 VL 9343 BP 134 EP 148 DI 10.1007/978-3-319-24586-7_10 PG 15 WC Computer Science, Artificial Intelligence; Computer Science, Interdisciplinary Applications; Robotics SC Computer Science; Robotics GA BE0ZY UT WOS:000367594000010 ER PT S AU Vattam, SS Aha, DW AF Vattam, Swaroop S. Aha, David W. BE Hullermeier, E Minor, M TI Case-Based Plan Recognition Under Imperfect Observability SO CASE-BASED REASONING RESEARCH AND DEVELOPMENT, ICCBR 2015 SE Lecture Notes in Artificial Intelligence LA English DT Proceedings Paper CT 23rd International Conference on Case-Based Reasoning (ICCBR) CY SEP 28-30, 2015 CL Goethe Univ Frankfurt, Forschungskolleg Humanwissenschaften, Bad Homburg, GERMANY HO Goethe Univ Frankfurt, Forschungskolleg Humanwissenschaften DE Case-based reasoning; Plan recognition; Imperfect observability; Graph representation; Plan matching ID MODEL AB SET-PR is a novel case-based recognizer that is robust to three kinds of input errors arising from imperfect observability, namely missing, mislabeled and extraneous actions. We extend our previous work on SET-PR by empirically studying its efficacy on three plan recognition datasets. We found that in the presence of higher input error rates, SET-PR significantly outperforms alternative approaches, which perform similarly to or outperform SET-PR in the presence of no input errors. C1 [Vattam, Swaroop S.] Naval Res Lab, Washington, DC 20375 USA. [Aha, David W.] Naval Res Lab, Navy Ctr Appl Res Artificial Intelligence, Washington, DC 20375 USA. RP Vattam, SS (reprint author), Naval Res Lab, Code 5514, Washington, DC 20375 USA. EM swaroop.vattam.ctr.in@nrl.navy.mil; david.aha@nrl.navy.mil NR 23 TC 0 Z9 0 U1 1 U2 1 PU SPRINGER-VERLAG BERLIN PI BERLIN PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY SN 0302-9743 BN 978-3-319-24586-7; 978-3-319-24585-0 J9 LECT NOTES ARTIF INT PY 2015 VL 9343 BP 381 EP 395 DI 10.1007/978-3-319-24586-7_26 PG 15 WC Computer Science, Artificial Intelligence; Computer Science, Interdisciplinary Applications; Robotics SC Computer Science; Robotics GA BE0ZY UT WOS:000367594000026 ER PT J AU Dorsey, WM Coleman, JO Pickles, WR AF Dorsey, W. Mark Coleman, Jeffrey O. Pickles, William R. TI Transmit TACAN Bearing Information with a Circular Array SO INTERNATIONAL JOURNAL OF ANTENNAS AND PROPAGATION LA English DT Article AB Using TACAN and array fundamentals, we derive an architecture for transmitting TACAN bearing information from a circular array with time-varying weights. We evaluate performance for a simulated example array of Vivaldi elements. C1 [Dorsey, W. Mark; Coleman, Jeffrey O.; Pickles, William R.] Naval Res Lab, Div Radar, Washington, DC 20375 USA. RP Dorsey, WM (reprint author), Naval Res Lab, Div Radar, Washington, DC 20375 USA. EM mark.dorsey@nrl.navy.mil FU InTop program of the Office of Naval Research FX This work is supported by the InTop program of the Office of Naval Research. NR 5 TC 0 Z9 0 U1 3 U2 3 PU HINDAWI PUBLISHING CORP PI NEW YORK PA 410 PARK AVENUE, 15TH FLOOR, #287 PMB, NEW YORK, NY 10022 USA SN 1687-5869 EI 1687-5877 J9 INT J ANTENN PROPAG JI Int. J. Antennas Propag. PY 2015 AR 846720 DI 10.1155/2015/846720 PG 6 WC Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA CZ6YL UT WOS:000367247000001 ER PT J AU Hong, SK Lathrop, E Mendez, VM Kim, J AF Hong, Sun K. Lathrop, Emily Mendez, Victor M. Kim, Jerry TI Ultrashort Microwave Pulse Generation by Passive Pulse Compression in a Compact Reverberant Cavity SO PROGRESS IN ELECTROMAGNETICS RESEARCH-PIER LA English DT Article ID TIME-REVERSAL; WAVE-GUIDE; WIDE-BAND AB In this paper, we demonstrate a device that is capable of generating an ultrashort (sub-nanosecond) high power microwave pulse by means of passive pulse compression in a compact reverberant cavity. The long duration input pulse into the cavity is created using time-reversal techniques, which allows the waveform to contain the inverse profile of the cavity phase distortion. When fed back into the cavity, the wave focusing at the output port results in a compressed ultrashort pulse with enhanced peak amplitude. We experimentally demonstrate a pulse compressor consisting of a 0.0074m(3) cavity capable of generating a 130 picosecond pulse from an input waveform of 300 nanosecond duration with the peak gain of up to 19 dB. C1 [Hong, Sun K.; Mendez, Victor M.; Kim, Jerry] Naval Res Lab, Washington, DC 20375 USA. [Lathrop, Emily] Envisioneering Inc, Alexandria, VA 22303 USA. RP Hong, SK (reprint author), Naval Res Lab, Code 5745,4555 Overlook Ave SW, Washington, DC 20375 USA. EM hong@rose-hulman.edu NR 19 TC 0 Z9 0 U1 2 U2 2 PU E M W PUBLISHING PI CAMBRIDGE PA PO BOX 425517, KENDALL SQUARE, CAMBRIDGE, MA 02142 USA SN 1559-8985 J9 PROG ELECTROMAGN RES JI Prog. Electromagn. Res. PY 2015 VL 153 BP 113 EP 121 DI 10.2528/PIER15092406 PG 9 WC Engineering, Electrical & Electronic; Physics, Applied; Telecommunications SC Engineering; Physics; Telecommunications GA CZ2ED UT WOS:000366917000009 ER PT J AU Bhatnagar, V Richard, E Melcer, T Walker, J Galarneau, M AF Bhatnagar, Vibha Richard, Erin Melcer, Ted Walker, Jay Galarneau, Michael TI Lower-limb amputation and effect of posttraumatic stress disorder on Department of Veterans Affairs outpatient cost trends SO JOURNAL OF REHABILITATION RESEARCH AND DEVELOPMENT LA English DT Article DE amputation; amputee; Department of Veterans Affairs; Expeditionary Medical Encounter Database; outpatient cost; pharmacy; posttraumatic stress disorder; prosthetic; psychiatry; rehabilitation; utilization ID POLYTRAUMA-CLINICAL-TRIAD; OEF/OIF VETERANS; COMBAT AMPUTEES; HEALTH; IRAQ; WAR; AFGHANISTAN; OUTCOMES; INJURY; REHABILITATION AB Department of Veterans Affairs (VA) outpatient costs were analyzed for combat Veterans injured in Iraq and Afghanistan from 2001 to 2008. Patients had serious lower-limb injuries (n = 170) or unilateral (n = 460) or bilateral (n = 153) lower-limb amputation(s). Total costs over the follow-up period (2003 to 2012) and annual costs were analyzed. Unadjusted mean costs per year in 2012 U.S. dollars were $7,200, $ 14,700, and $18,700 for limb injuries and unilateral and bilateral lower-limb amputation(s), respectively (p < 0.001). Multivariate modeling indicated that annual cost declined after the first year in the VA for Veterans with limb injuries (p < 0.001, repeated measures). In contrast, annual costs doubled after 3-5 years with unilateral (p < 0.001) and bilateral amputation(s) (p < 0.001). Among amputees, prosthetics comprised more than 50% of outpatient cost; unadjusted mean cost per year for prosthetics was 7-9 times higher in comparison with Veterans with limb injuries. Amputation status was associated with an adjusted 3.12-fold increase in mean prosthetic cost per year (p < 0.001, general linear model). In addition, posttraumatic stress disorder (PTSD) was associated with increased prosthetic cost by amputation status (p < 0.001) and increased psychiatric and pharmacy costs (both p < 0.001). Results indicate relatively high and sustained outpatient costs driven by prosthetics following amputation. Finally, PTSD affected cost for multiple domains of health, highlighting the importance of accurate diagnosis, treatment, and support for PTSD. C1 [Bhatnagar, Vibha; Richard, Erin] Univ Calif San Diego, Dept Family Med & Publ Hlth, La Jolla, CA 92093 USA. [Bhatnagar, Vibha; Richard, Erin] Dept Vet Affairs San Diego Healthcare Syst, San Diego, CA USA. [Melcer, Ted; Walker, Jay; Galarneau, Michael] Naval Hlth Res Ctr, Med Modeling Simulat & Mission Support Dept, San Diego, CA USA. RP Bhatnagar, V (reprint author), Univ Calif San Diego, Dept Family Med & Publ Hlth, 9500 Gilman Dr,MC 0725, La Jolla, CA 92093 USA. EM vbhatnag@ucsd.edu FU U.S. Navy Bureau of Medicine and Surgery under the Wounded, Ill, and Injured/Psychological Health/Traumatic Brain Injury Program [61110] FX This material was based on work supported by the U.S. Navy Bureau of Medicine and Surgery under the Wounded, Ill, and Injured/Psychological Health/Traumatic Brain Injury Program (work unit No. 61110). NR 35 TC 0 Z9 0 U1 3 U2 5 PU JOURNAL REHAB RES & DEV PI BALTIMORE PA DEPT OF VETERANS AFFAIRS REHABIL RES & DEVELOP CTR 103 SOUTH GAY STREET, BALTIMORE, MD 21202-4051 USA SN 0748-7711 EI 1938-1352 J9 J REHABIL RES DEV JI J. Rehabil. Res. Dev. PY 2015 VL 52 IS 7 BP 827 EP 838 DI 10.1682/JRRD.2014.11.0288 PG 12 WC Rehabilitation SC Rehabilitation GA CY3RG UT WOS:000366326700008 PM 26745304 ER PT S AU Korman, MS Duong, DV Kalsbeck, AE AF Korman, M. S. Duong, D. V. Kalsbeck, A. E. BE BlancBenon, P Sparrow, VW Dragna, D TI Electrodynamic Soil Plate Oscillator: Modeling Nonlinear Mesoscopic Elastic Behavior and Hysteresis in Nonlinear Acoustic Landmine Detection SO RECENT DEVELOPMENTS IN NONLINEAR ACOUSTICS SE AIP Conference Proceedings LA English DT Proceedings Paper CT 20th International Symposium on Nonlinear Acoustics (ISNA) including the 2nd International Sonic Boom Forum (ISBF) CY JUN 29-JUL 03, 2015 CL Ecole Centrale Lyon, Lyon, FRANCE SP Acoust Soc Amer, Int Commiss Acoust, Gulfstream Aerosp Corp, Lab Mecanique Fluides Acoustique, Soc Franvaise Acoustique, Ctr Lyonnais Acoustique HO Ecole Centrale Lyon ID DISCRIMINATION AB An apparatus (SPO), designed to study flexural vibrations of a soil loaded plate, consists of a thin circular elastic clamped plate (and cylindrical wall) supporting a vertical soil column. A small magnet attached to the center of the plate is driven by a rigid AC coil (located coaxially below the plate) to complete the electrodynamic soil plate oscillator SPO design. The frequency dependent mechanical impedance Z(mech) (force / particle velocity, at the plate's center) is inversely proportional to the electrical motional impedance Z(mot). Measurements of Z(mot) are made using the complex output to input response of a Wheatstone bridge that has an identical coil element in one of its legs. Near resonance, measurements of Z(mot) (with no soil) before and after a slight point mass loading at the center help determine effective mass, spring, damping and coupling constant parameters of the system. "Tuning curve" behavior of real{Z(mot)} and imaginary{Z(mot)} at successively higher vibration amplitudes of dry sifted masonry sand are measured. They exhibit a decrease "softening" in resonance frequency along with a decrease in the quality Q factor. In soil surface vibration measurements a bilinear hysteresis model predicts the tuning curve shape for this nonlinear mesoscopic elastic SPO behavior - which also models the soil vibration over an actual plastic "inert" VS 1.6 buried landmine. Experiments are performed where a buried 1m cube concrete block supports a 12 inch deep by 30 inch by 30 inch concrete soil box for burying a VS 1.6 in dry sifted masonry sand for on-the-mine and off-the-mine soil vibration experiments. The backbone curve (a plot of the peak amplitude vs. corresponding resonant frequency from a family of tuning curves) exhibits mostly linear behavior for "on target" soil surface vibration measurements of the buried VS 1.6 or drum-like mine simulants for relatively low particle velocities of the soil. Backbone curves for "on target" measurements exhibit significant curvature when the soil particle velocity is relatively higher. An oscillator with hysteresis modeled by a distribution of parallel spring elements each with a different threshold slip condition seems to describe fairly linear backbone curve behavior [W. D. Iwan, Transactions of the ASME, J. of Applied Mech., 33,(1966), 893-900], while a single bilinear hysteresis element describes the backbone curvature results in the experiments reported here [T. K. Caughey, Transactions of the ASME, J. of Applied Mech., 27, (1960), 640-643]. When "off target" resonances have a different backbone curvature than "on the mine" backbone curves, then false alarms may be eliminated due to resonances from the natural soil layering. See [R. A. Guyer, J. TenCate, and P. Johnson, "Hysteresis and the Dynamic Elasticity of Consolidated Granular Materials," Phys. Rev. Lett., 82, 16 (1999), 3280-3283] for recent models of nonlinear mesoscopic behavior. C1 [Korman, M. S.; Duong, D. V.; Kalsbeck, A. E.] US Naval Acad, Dept Phys, Annapolis, MD 21402 USA. RP Korman, MS (reprint author), US Naval Acad, Dept Phys, 572 C Holloway Rd,Chauvenet Hall Room 295, Annapolis, MD 21402 USA. EM korman@usna.edu NR 10 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 978-0-7354-1332-0 J9 AIP CONF PROC PY 2015 VL 1685 AR UNSP 080003 DI 10.1063/1.4934456 PG 8 WC Acoustics; Physics, Applied SC Acoustics; Physics GA BE0PU UT WOS:000366570200076 ER PT S AU Nuttall, AH Katz, RA Hughes, DR Koch, RM AF Nuttall, A. H. Katz, R. A. Hughes, D. R. Koch, R. M. BE BlancBenon, P Sparrow, VW Dragna, D TI Novel Procedure for Characterizing Nonlinear Systems with Memory and Combating the Curse of Dimensionality SO RECENT DEVELOPMENTS IN NONLINEAR ACOUSTICS SE AIP Conference Proceedings LA English DT Proceedings Paper CT 20th International Symposium on Nonlinear Acoustics (ISNA) including the 2nd International Sonic Boom Forum (ISBF) CY JUN 29-JUL 03, 2015 CL Ecole Centrale Lyon, Lyon, FRANCE SP Acoust Soc Amer, Int Commiss Acoust, Gulfstream Aerosp Corp, Lab Mecanique Fluides Acoustique, Soc Franvaise Acoustique, Ctr Lyonnais Acoustique HO Ecole Centrale Lyon AB A well-known mathematical model for characterizing nonlinear systems was originally proposed by Vito Volterra (1860-1940) and later developed by Norbert Wiener (1894-1964). More recently, Albert Nuttall, working with coauthors, has made substantial improvements to Wiener's approach, in which kernel estimates are modeled directly rather than computed from Wiener functionals. Other enhancements made include kernel estimation using a least-square approach for obtaining a best fit to the measured system response, and procedural methods to obtain uncorrelated column-wise basis vectors in the design matrix. These techniques, among others, include: maximally-sparse sampling of the kernels (for first-, second-and third-order), combatting ill-conditioning on its own terms, and realizing an exponential decrease of the growth of the number of kernel coefficients. C1 [Nuttall, A. H.; Katz, R. A.; Hughes, D. R.; Koch, R. M.] Naval Undersea Warfare Ctr, Newport, RI 02841 USA. RP Hughes, DR (reprint author), Naval Undersea Warfare Ctr, Newport, RI 02841 USA. EM derkehughes@navy.mil NR 0 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 978-0-7354-1332-0 J9 AIP CONF PROC PY 2015 VL 1685 AR UNSP 030006 DI 10.1063/1.4934389 PG 4 WC Acoustics; Physics, Applied SC Acoustics; Physics GA BE0PU UT WOS:000366570200009 ER PT S AU Armstrong, JT Baines, EK Schmitt, HR Restaino, SR Clark, JH Benson, JA Hutter, DJ Zavala, RT AF Armstrong, J. Thomas Baines, Ellyn K. Schmitt, Henrique R. Restaino, Sergio R. Clark, James H., III Benson, James A. Hutter, Donald J. Zavala, Robert T. BE Dolne, JJ Karr, TJ Gamiz, VL TI Multiple-baseline detection of a geostationary satellite with the Navy Precision Optical Interferometer SO UNCONVENTIONAL IMAGING AND WAVEFRONT SENSING 2015 SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Unconventional Imaging and Wavefront Sensing CY AUG 12-13, 2015 CL San Diego, CA SP SPIE DE geostationary satellites; optical interferometry; imaging; telescope arrays AB We describe multi-baseline observations of a geostationary satellite using the Navy Precision Optical Interferometer (NPOI) during the glint season of March 2015. We succeeded in detecting DirecTV-7S with an interferometer baseline length of 8.8 m on two nights, with a brief simultaneous detection at 9.8 m baseline length on the second night. These baseline lengths correspond to a resolution of 4 m at geostationary altitude. This is the first multiple-baseline interferometric detection of a satellite. C1 [Armstrong, J. Thomas; Baines, Ellyn K.; Schmitt, Henrique R.; Restaino, Sergio R.; Clark, James H., III] Naval Res Lab, Remote Sensing Div, Washington, DC 20375 USA. [Benson, James A.; Hutter, Donald J.; Zavala, Robert T.] US Naval Observ, Flagstaff, AZ 86001 USA. RP Armstrong, JT (reprint author), Naval Res Lab, Remote Sensing Div, Washington, DC 20375 USA. EM tom.armstrong@nrl.navy.mil NR 12 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 978-1-62841-783-8 J9 PROC SPIE PY 2015 VL 9617 AR 961709 DI 10.1117/12.2194156 PG 8 WC Remote Sensing; Optics; Imaging Science & Photographic Technology SC Remote Sensing; Optics; Imaging Science & Photographic Technology GA BE0OM UT WOS:000366496400007 ER PT J AU McHardy, TM Zhang, J Reid, JS Miller, SD Hyer, EJ Kuehn, RE AF McHardy, T. M. Zhang, J. Reid, J. S. Miller, S. D. Hyer, E. J. Kuehn, R. E. TI An improved method for retrieving nighttime aerosol optical thickness from the VIIRS Day/Night Band SO ATMOSPHERIC MEASUREMENT TECHNIQUES LA English DT Article ID DATA ASSIMILATION; TRANSPORT MODEL; DEPTH; AERONET; NETWORK; LIGHTS; CALIOP; MODIS; LIDAR AB Using Visible Infrared Imaging Radiometer Suite (VIIRS) Day/Night Band (DNB) data, a method, dubbed the "variance method", is developed for retrieving nighttime aerosol optical thickness (tau) values through the examination of the dispersion of radiance values above an artificial light source. Based on the improvement of a previous algorithm, this updated method derives a semi-quantitative indicator of nighttime tau using artificial light sources. Nighttime tau retrievals from the newly developed method are inter-compared with an interpolated value from late afternoon and early morning ground observations from four AErosol RObotic NETwork (AERONET) sites as well as column-integrated tau from one High Spectral Resolution Li-dar (HSRL) site at Huntsville, AL, during the NASA Studies of Emissions and Atmospheric Composition, Clouds and Climate Coupling by Regional Surveys (SEAC4RS) campaign, providing full diel coverage. Sensitivity studies are performed to examine the effects of lunar illumination on VIIRS tau retrievals made via the variance method, revealing that lunar contamination may have a smaller impact than previously thought; however, the small sample size of this study limits the conclusiveness thus far. VIIRS tau retrievals yield a coefficient of determination (r(2)) of 0.60 and a root-mean-squared error (RMSE) of 0.18 when compared against straddling daytime-averaged AERONET tau values. Preliminary results suggest that artificial light sources can be used for estimating regional and global nighttime aerosol distributions in the future. C1 [McHardy, T. M.; Zhang, J.] Univ N Dakota, Dept Atmospher Sci, Grand Forks, ND 58201 USA. [Reid, J. S.; Hyer, E. J.] Naval Res Lab, Marine Meteorol Div, Monterey, CA USA. [Miller, S. D.] Colorado State Univ, Cooperat Inst Res Atmosphere, Ft Collins, CO 80523 USA. [Kuehn, R. E.] Univ Wisconsin, Cooperat Inst Meteorol Satellite Studies, Madison, WI USA. RP Zhang, J (reprint author), Univ N Dakota, Dept Atmospher Sci, Grand Forks, ND 58201 USA. EM jzhang@atmos.und.edu RI Hyer, Edward/E-7734-2011; Reid, Jeffrey/B-7633-2014 OI Hyer, Edward/0000-0001-8636-2026; Reid, Jeffrey/0000-0002-5147-7955 FU Office of Naval Research [322]; NASA [NNX14AJ13G] FX This research was funded by the Office of Naval Research Code 322 and the NASA project NNX14AJ13G. We thank the AERONET team - especially those members in Grand Forks, Espargos, Huntsville, and Alta Floresta - for their work. NR 20 TC 1 Z9 1 U1 1 U2 9 PU COPERNICUS GESELLSCHAFT MBH PI GOTTINGEN PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY SN 1867-1381 EI 1867-8548 J9 ATMOS MEAS TECH JI Atmos. Meas. Tech. PY 2015 VL 8 IS 11 BP 4773 EP 4783 DI 10.5194/amt-8-4773-2015 PG 11 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA CX8TW UT WOS:000365978100013 ER PT J AU Schultz, MP Walker, JM Steppe, CN Flack, KA AF Schultz, M. P. Walker, J. M. Steppe, C. N. Flack, K. A. TI Impact of diatomaceous biofilms on the frictional drag of fouling-release coatings SO BIOFOULING LA English DT Article DE drag; powering; biofilms; biofouling; roughness; fouling-release coatings ID TURBULENT-BOUNDARY-LAYER; SURFACE-ROUGHNESS; ANTIFOULING COATINGS; SHIP; DIATOMS; RESISTANCE; SETTLEMENT; ADHESION; SMOOTH; FLOW AB Skin-friction results are presented for fouling-release (FR) hull coatings in the unexposed, clean condition and after dynamic exposure to diatomaceous biofilms for 3 and 6 months. The experiments were conducted in a fully developed turbulent channel flow facility spanning a wide Reynolds number range. The results show that the clean FR coatings tested were hydraulically smooth over much of the Reynolds number range. Biofilms, however, resulted in an increase in skin-friction of up to 70%. The roughness functions for the biofilm-covered surfaces did not display universal behavior, but instead varied with the percentage coverage by the biofilm. The effect of the biofilm was observed to scale with its mean thickness and the square root of the percentage coverage. A new effective roughness length scale (k(eff)) for biofilms based on these parameters is proposed. Boundary layer similarity-law scaling is used to predict the impact of these biofilms on the required shaft power for a mid-sized naval surface combatant at cruising speed. The increase in power is estimated to be between 1.5% and 10.1% depending on the biofilm thickness and percentage coverage. C1 [Schultz, M. P.] US Naval Acad, Dept Naval Architecture & Ocean Engn, Annapolis, MD 21402 USA. [Walker, J. M.] Univ Tasmania, Natl Ctr Maritime Engn & Hydrodynam, Australian Maritime Coll, Launceston, Tas 7250, Australia. [Steppe, C. N.] US Naval Acad, Dept Oceanog, Annapolis, MD 21402 USA. [Flack, K. A.] US Naval Acad, Dept Mech Engn, Annapolis, MD 21402 USA. RP Schultz, MP (reprint author), US Naval Acad, Dept Naval Architecture & Ocean Engn, Annapolis, MD 21402 USA. EM mschultz@usna.edu RI Schultz, Michael/C-3670-2008; Walker, Jessica/N-7144-2013 OI Walker, Jessica/0000-0001-5151-1693 FU Office of Naval Research [ONR] [N00014-13-WX-2-0747]; Australian Fulbright Scholarship FX The authors gratefully acknowledge the financial support of this research by the Office of Naval Research [ONR Award # N00014-13-WX-2-0747]. The work was also supported by an Australian Fulbright Scholarship for JMW. NR 39 TC 8 Z9 8 U1 8 U2 13 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 2015 VL 31 IS 9-10 BP 759 EP 773 DI 10.1080/08927014.2015.1108407 PG 15 WC Biotechnology & Applied Microbiology; Marine & Freshwater Biology SC Biotechnology & Applied Microbiology; Marine & Freshwater Biology GA CY5AA UT WOS:000366418900008 PM 26652667 ER PT J AU Spinner, NS Mazurick, R Brandon, A Rose-Pehrsson, SL Tuttle, SG AF Spinner, Neil S. Mazurick, Ryan Brandon, Andrew Rose-Pehrsson, Susan L. Tuttle, Steven G. TI Analytical, Numerical and Experimental Determination of Thermophysical Properties of Commercial 18650 LiCoO2 Lithium-Ion Battery SO JOURNAL OF THE ELECTROCHEMICAL SOCIETY LA English DT Article ID THERMAL MANAGEMENT-SYSTEM; EQUIVALENT-CIRCUIT MODELS; ELECTRIC VEHICLES; ENERGY-STORAGE; CELLS; OPTIMIZATION; ISSUES AB Thermophysical properties of a commercial 18650 LiCoO2 lithium-ion battery were determined using several different techniques, including analytical, numerical and experimental methods. A reasonable level of consistency was observed in values for heat capacity, which were found to be 972 +/- 92 J/kg-K from the analytical method, 814 +/- 19 J/kg-K from the numerical technique, and 896 +/- 31 J/kg-K from calorimetry. The value for radial thermal conductivity with the best correlation to reported literature values obtained in this study (0.219 +/- 0.020 W/m-K) was found via the numerical technique, and the axial thermal conductivity was found to be 22.3 +/- 1.3 W/m-K. Values for heat capacity and thermal conductivity were also determined for aluminum and Teflon as controls, and all thermophysical properties in this work were found to be within, or very close to, reported literature values. These properties will aid in the development of ongoing and future lithium-ion battery simulation models and battery Management systems. (C) 2015 The Electrochemical Society. All rights reserved. C1 [Spinner, Neil S.; Mazurick, Ryan; Brandon, Andrew; Rose-Pehrsson, Susan L.; Tuttle, Steven G.] US Naval Res Lab, Navy Technol Ctr Safety & Survivabil, Div Chem, Washington, DC 20375 USA. [Spinner, Neil S.] Natl Acad Sci, Natl Res Council, Washington, DC 20001 USA. [Mazurick, Ryan] Off Naval Res, Naval Res Enterprise Internship Program, Arlington, VA 22217 USA. RP Spinner, NS (reprint author), US Naval Res Lab, Navy Technol Ctr Safety & Survivabil, Div Chem, Washington, DC 20375 USA. EM steven.tuttle@nrl.navy.mil FU Office of Naval Research [40001414WX20004] FX The authors would like to thank the Office of Naval Research (award number 40001414WX20004) for financial support of this work. NR 42 TC 4 Z9 4 U1 3 U2 9 PU ELECTROCHEMICAL SOC INC PI PENNINGTON PA 65 SOUTH MAIN STREET, PENNINGTON, NJ 08534 USA SN 0013-4651 EI 1945-7111 J9 J ELECTROCHEM SOC JI J. Electrochem. Soc. PY 2015 VL 162 IS 14 BP A2789 EP A2795 DI 10.1149/2.0871514jes PG 7 WC Electrochemistry; Materials Science, Coatings & Films SC Electrochemistry; Materials Science GA CY0AV UT WOS:000366069300045 ER PT J AU Yates, MD Golden, JP Roy, J Strycharz-Glaven, SM Tsoi, S Erickson, JS El-Naggar, MY Barton, SC Tender, LM AF Yates, Matthew D. Golden, Joel P. Roy, Jared Strycharz-Glaven, Sarah M. Tsoi, Stanislav Erickson, Jeffrey S. El-Naggar, Mohamed Y. Barton, Scott Calabrese Tender, Leonard M. TI Thermally activated long range electron transport in living biofilms SO PHYSICAL CHEMISTRY CHEMICAL PHYSICS LA English DT Article ID GEOBACTER-SULFURREDUCENS BIOFILMS; C-TYPE CYTOCHROMES; CHARGE-TRANSPORT; MICROBIAL NANOWIRES; REDOX PROPERTIES; OXIDE REDUCTION; OUTER-MEMBRANE; FUEL-CELLS; CONDUCTIVITY; FE(III) AB Microbial biofilms grown utilizing electrodes as metabolic electron acceptors or donors are a new class of biomaterials with distinct electronic properties. Here we report that electron transport through living electrode-grown Geobacter sulfurreducens biofilms is a thermally activated process with incoherent redox conductivity. The temperature dependency of this process is consistent with electron-transfer reactions involving hemes of c-type cytochromes known to play important roles in G. sulfurreducens extracellular electron transport. While incoherent redox conductivity is ubiquitous in biological systems at molecular-length scales, it is unprecedented over distances it appears to occur through living G. sulfurreducens biofilms, which can exceed 100 microns in thickness. C1 [Yates, Matthew D.; Golden, Joel P.; Strycharz-Glaven, Sarah M.; Erickson, Jeffrey S.; Tender, Leonard M.] Naval Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 USA. [Roy, Jared] George Mason Univ, Fairfax, VA 22030 USA. [Tsoi, Stanislav] Naval Res Lab, Div Chem, Washington, DC 20375 USA. [El-Naggar, Mohamed Y.] Univ So Calif, Dept Phys, Los Angeles, CA 90089 USA. [El-Naggar, Mohamed Y.] Univ So Calif, Dept Biol Sci & Chem, Los Angeles, CA 90089 USA. [Barton, Scott Calabrese] Michigan State Univ, Dept Chem Engn & Mat Sci, E Lansing, MI 48824 USA. RP Tender, LM (reprint author), Naval Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 USA. EM tender@nrl.navy.mil RI Erickson, Jeffrey/F-6273-2011; OI Yates, Matthew/0000-0003-4373-3864 NR 55 TC 14 Z9 14 U1 9 U2 59 PU ROYAL SOC CHEMISTRY PI CAMBRIDGE PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND SN 1463-9076 EI 1463-9084 J9 PHYS CHEM CHEM PHYS JI Phys. Chem. Chem. Phys. PY 2015 VL 17 IS 48 BP 32564 EP 32570 DI 10.1039/c5cp05152e PG 7 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA CX8LJ UT WOS:000365954700054 PM 26611733 ER PT S AU Galy, C Fineschi, S Galano, D Howard, RA Kintziger, C Kirschner, V Koutchmy, S Lamy, P Mazzoli, A Melich, R Mestreau-Garreau, A Renotte, E Servaye, JS Stockman, Y Thizy, C Zhukov, A AF Galy, C. Fineschi, S. Galano, D. Howard, R. A. Kintziger, C. Kirschner, V. Koutchmy, S. Lamy, P. Mazzoli, A. Melich, R. Mestreau-Garreau, A. Renotte, E. Servaye, J. S. Stockman, Y. Thizy, C. Zhukov, A. BE Fineschi, S Fennelly, J TI Design and Modelisation of ASPIICS Optics SO SOLAR PHYSICS AND SPACE WEATHER INSTRUMENTATION VI SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Solar Physics and Space Weather Instrumentation VI CY AUG 09-10, 2015 CL San Diego, CA SP SPIE DE PROBA-3; ASPIICS; solar physics; coronagraph; formation flying; in-orbit demonstration AB In the framework of development of ASPIICS (Association of Spacecraft for Polarimetric and Imaging Investigation of the Corona of the Sun), the Centre Spatial de Liege is responsible of the optical design of the coronagraph and the optics will be manufactured by TOPTEC. The particularity of this coronagraph is to have an external occulter located 150 m ahead of the first imaging lens. This external occulter is re-imaged on an internal occulter which function is - as in a classical externally occulted Lyot coronagraph - to block the sun light diffracted by the external occulter and to reduce the straylight on the detector. The selection of this configuration is driven by the requirement to observe the corona as close as possible to the solar limb (i.e. 1 R-Sun) without imaging the limb itself. A requirement of 1.08 R-Sun is specified at optical design level to grant 1.2 R-sun at instrument level. The coronograph instrument is designed to have a field of view of 1.6 degrees x 1.6 degrees with a resolution of less than 6 arcsec. Its performances are limited by diffraction in a 530 - 590 nm wavelength range. This paper presents the optical design and demonstrates that by design the requirements are fulfilled within the misalignment, manufacturing and thermo-elastic error contributions. C1 [Galy, C.; Kintziger, C.; Mazzoli, A.; Renotte, E.; Servaye, J. S.; Stockman, Y.; Thizy, C.] Ctr Spatial Liege, B-4030 Angleur, Belgium. [Melich, R.] TOPTEC, Turnov 51101, Czech Republic. [Howard, R. A.] NRL, Washington, DC 20375 USA. [Lamy, P.] Lab Astrophys Marseille, Marseille, France. [Koutchmy, S.] IAP, F-75014 Paris, France. [Fineschi, S.] Astrophys Observ Torino, INAF, Turin, Italy. [Galano, D.; Kirschner, V.; Mestreau-Garreau, A.] ESTEC ESA, NL-2200 AG Noordwijk, Netherlands. [Zhukov, A.] Royal Observ Belgium, Brussels, Belgium. RP Galy, C (reprint author), Ctr Spatial Liege, Ave Preaily, B-4030 Angleur, Belgium. NR 3 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 978-1-62841-770-8 J9 PROC SPIE PY 2015 VL 9604 AR 96040B DI 10.1117/12.2188404 PG 12 WC Astronomy & Astrophysics; Instruments & Instrumentation; Optics SC Astronomy & Astrophysics; Instruments & Instrumentation; Optics GA BE0HG UT WOS:000366021400009 ER PT S AU Nicholas, AC Herrero, FA Stephan, AW Finne, T AF Nicholas, Andrew C. Herrero, Fred A. Stephan, Andrew W. Finne, Theodore BE Fineschi, S Fennelly, J TI WINCS on-orbit performance results SO SOLAR PHYSICS AND SPACE WEATHER INSTRUMENTATION VI SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Solar Physics and Space Weather Instrumentation VI CY AUG 09-10, 2015 CL San Diego, CA SP SPIE DE ionosphere; thermosphere; neutral wind; ion-drift; charged-particle spectrometer AB The Winds-Ions-Neutral Composition Suite (WINCS) instrument, also known as the Small Wind and Temperature Spectrometer (SWATS), was designed and developed jointly by the Naval Research Laboratory (NRL) and NASA/Goddard Space Flight Center (GSFC) for ionosphere-thermosphere investigations in orbit between 120 and 550 km altitude. The WINCS instrument houses four spectrometers in a single package with size, weight, and power compatible with a CubeSat. These spectrometers provide the following measurements: neutral winds, neutral temperature, neutral density, neutral composition, ion drifts, ion temperature, ion density and ion composition. The instrument is currently operating on the International Space Station and on the STP-Sat3 spacecraft. Data from the Ion-Drift Temperature-Spectrometer (IDTS) are used to compute the ion drift, temperature, and density in the presence of large changes in spacecraft potential. A summary is given of future flight manifests. C1 [Nicholas, Andrew C.; Stephan, Andrew W.; Finne, Theodore] US Naval Res Lab, Div Space Sci, Washington, DC 20375 USA. [Herrero, Fred A.] Space Syst Res Corp, Alexandria, VA 22314 USA. RP Nicholas, AC (reprint author), US Naval Res Lab, Div Space Sci, Code 7634,4555 Overlook Ave, Washington, DC 20375 USA. NR 7 TC 0 Z9 0 U1 1 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 978-1-62841-770-8 J9 PROC SPIE PY 2015 VL 9604 AR 960404 DI 10.1117/12.2188403 PG 15 WC Astronomy & Astrophysics; Instruments & Instrumentation; Optics SC Astronomy & Astrophysics; Instruments & Instrumentation; Optics GA BE0HG UT WOS:000366021400003 ER PT S AU Renotte, E Alia, A Bemporad, A Bernier, J Bramanti, C Buckley, S Capobianco, G Cernica, I Daniel, V Darakchiev, R Darmetko, M Debaize, A Denis, F Desselle, R de Vos, L Dinescu, A Fineschi, S Fleury-Frenette, K Focardi, M Fumel, A Galanot, D Galy, C Gillis, JM Gorski, T Graas, E Graczyk, R Grochowski, K Halain, JP Hermans, A Howard, R Jackson, C Janssen, E Kasprzyk, H Kosiec, J Koutchmy, S Kovacicinova, J Kranitis, N Kurowski, M Ladno, M Lamy, P Landini, F Lapacek, R Ledl, V Liebecq, S Loreggia, D McGarvey, B Massone, G Melich, R Mestreau-Garreau, A Mollet, D Mosdorf, L Mosdorf, M Mroczkowski, M Muller, R Nicolini, G Nicula, B O'Neill, K Orleanski, P Palau, MC Pancrazzi, M Paschalis, A Patocka, K Peresty, R Popescu, I Psota, P Rataj, M Rautakoski, J Romoli, M Rybecky, R Salvador, L Servaye, JS Solomon, C Stockman, Y Swat, A Thizy, C Thome, M Tsinganos, K Van der Meulen, J Van Vooren, N Vit, T Walczak, T Zarzycka, A Zender, J Zhukov, A AF Renotte, Etienne Alia, Andres Bemporad, Alessandro Bernier, Joseph Bramanti, Cristina Buckley, Steve Capobianco, Gerardo Cernica, Ileana Daniel, Vladimir Darakchiev, Radoslav Darmetko, Marcin Debaize, Arnaud Denis, Franois Desselle, Richard de Vos, Lieve Dinescu, Adrian Fineschi, Silvano Fleury-Frenette, Karl Focardi, Mauro Fumel, Aurelie Galanot, Damien Galy, Camille Gillis, Jean-Marie Gorski, Tomasz Graas, Estelle Graczyk, Rafal Grochowski, Konrad Halain, Jean-Philippe Hermans, Aline Howard, Russ Jackson, Carl Janssen, Emmanuel Kasprzyk, Hubert Kosiec, Jacek Koutchmy, Serge Kovacicinova, Jana Kranitis, Nektarios Kurowski, Michal Ladno, Michal Lamy, Philippe Landini, Federico Lapacek, Radek Ledl, Vit Liebecq, Sylvie Loreggia, Davide McGarvey, Brian Massone, Giuseppe Melich, Radek Mestreau-Garreau, Agnes Mollet, Dominique Mosdorf, Lukasz Mosdorf, Michal Mroczkowski, Mateusz Muller, Raluca Nicolini, Gianalfredo Nicula, Bogdan O'Neill, Kevin Orleanski, Piotr Palau, Marie-Catherine Pancrazzi, Maurizio Paschalis, Antonis Patocka, Karel Peresty, Radek Popescu, Irina Psota, Pavel Rataj, Miroslaw Rautakoski, Jan Romoli, Marco Rybecky, Roman Salvador, Lucas Servaye, Jean-Sebastien Solomon, Cornel Stockman, Yvan Swat, Arkadiusz Thizy, Cedric Thome, Michel Tsinganos, Kanaris Van der Meulen, Jim Van Vooren, Nico Vit, Tomas Walczak, Tomasz Zarzycka, Alicja Zender, Joe Zhukov, Andrei BE Fineschi, S Fennelly, J TI Design status of ASPIICS, an externally occulted coronagraph for PROBA-3. SO SOLAR PHYSICS AND SPACE WEATHER INSTRUMENTATION VI SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Solar Physics and Space Weather Instrumentation VI CY AUG 09-10, 2015 CL San Diego, CA SP SPIE DE PROBA-3; ASPIICS; solar physics; coronagraph; formation flying; in-orbit demonstration AB The "sonic region" of the Sun corona remains extremely difficult to observe with spatial resolution and sensitivity sufficient to understand the fine scale phenomena that govern the quiescent solar corona, as well as phenomena that lead to coronal mass ejections (CMEs), which influence space weather. Improvement on this front requires eclipse-like conditions over long observation times. The space-borne coronagraphs flown so far provided a continuous coverage of the external parts of the corona but their over-occulting system did not permit to analyse the part of the white-light corona where the main coronal mass is concentrated. The proposed PROBA-3 Coronagraph System, also known as ASPIICS (Association of Spacecraft for Polarimetric and Imaging Investigation of the Corona of the Sun), with its novel design, will be the first space coronagraph to cover the range of radial distances between similar to 1.08 and 3 solar radii where the magnetic field plays a crucial role in the coronal dynamics, thus providing continuous observational conditions very close to those during a total solar eclipse. PROBA-3 is first a mission devoted to the in-orbit demonstration of precise formation flying techniques and technologies for future European missions, which will fly ASPIICS as primary payload. The instrument is distributed over two satellites flying in formation (approx. 150m apart) to form a giant coronagraph capable of producing a nearly perfect eclipse allowing observing the sun corona closer to the rim than ever before. The coronagraph instrument is developed by a large European consortium including about 20 partners from 7 countries under the auspices of the European Space Agency. This paper is reviewing the recent improvements and design updates of the ASPIICS instrument as it is stepping into the detailed design phase. C1 [Renotte, Etienne; Alia, Andres; Bernier, Joseph; Debaize, Arnaud; Denis, Franois; Desselle, Richard; Fleury-Frenette, Karl; Fumel, Aurelie; Galy, Camille; Gillis, Jean-Marie; Graas, Estelle; Halain, Jean-Philippe; Hermans, Aline; Janssen, Emmanuel; Liebecq, Sylvie; Salvador, Lucas; Servaye, Jean-Sebastien; Stockman, Yvan; Thizy, Cedric; Thome, Michel] Univ Liege, CSL, Liege, Belgium. [Nicula, Bogdan; Zhukov, Andrei] Royal Observ Belgium, Solar Terr Ctr Excellence SIDC, Brussels, Belgium. [de Vos, Lieve; Mollet, Dominique; Van der Meulen, Jim; Van Vooren, Nico] OIP Sensor Syst Nv, Oudenaarde, Belgium. [Daniel, Vladimir; Lapacek, Radek; Patocka, Karel; Peresty, Radek; Rybecky, Roman] Serenum As, Prague, Czech Republic. [Kovacicinova, Jana; Ledl, Vit; Melich, Radek; Psota, Pavel; Vit, Tomas] Inst Plasma Phys ASCR Vvi TOPTEC, Turnov, Czech Republic. [Kranitis, Nektarios; Paschalis, Antonis; Tsinganos, Kanaris] Univ Athens, Athens 11528, Greece. [Buckley, Steve; Jackson, Carl; McGarvey, Brian; O'Neill, Kevin] SensL Technol Ltd, Cork, Ireland. [Bemporad, Alessandro; Capobianco, Gerardo; Fineschi, Silvano; Loreggia, Davide; Massone, Giuseppe; Nicolini, Gianalfredo] INAF Astrophys Observ Torino, Turin, Italy. [Darmetko, Marcin; Graczyk, Rafal; Ladno, Michal; Orleanski, Piotr; Rataj, Miroslaw] Ctr Badan Kosmicznych Polskiej Akad Nauk, Warsaw, Poland. [Darakchiev, Radoslav; Kasprzyk, Hubert; Mroczkowski, Mateusz; Palau, Marie-Catherine] Astri Polska Sp Zoo, Warsaw, Poland. [Gorski, Tomasz; Kosiec, Jacek] Creotech Instruments SA, Piaseczno, Poland. [Grochowski, Konrad; Mosdorf, Lukasz; Mosdorf, Michal] N7 Mobile Sp Zoo, Warsaw, Poland. [Walczak, Tomasz; Zarzycka, Alicja] PCO SA, Warsaw, Poland. [Swat, Arkadiusz] Solaris Opt SA, Jozefow, Poland. [Solomon, Cornel] AE Elect SA, Bacau, Romania. [Cernica, Ileana; Dinescu, Adrian; Muller, Raluca; Popescu, Irina] Natl Inst Res & Dev Microtechnol IMT, Bucharest, Romania. [Romoli, Marco] Univ Florence, Florence, Italy. [Focardi, Mauro; Landini, Federico; Pancrazzi, Maurizio] INAF Astrophys Observ Arcetri, Florence, Italy. [Bramanti, Cristina; Galanot, Damien; Mestreau-Garreau, Agnes; Rautakoski, Jan; Zender, Joe] European Space Agcy, European Space Res & Technol Ctr, NL-2200 AG Noordwijk, Netherlands. [Lamy, Philippe] Lab Astrophys Marseille, Marseille, France. [Howard, Russ] Naval Res Lab, Washington, DC 20375 USA. [Koutchmy, Serge] Inst Astrophys Paris, Paris, France. RP Renotte, E (reprint author), Univ Liege, CSL, Liege, Belgium. RI Romoli, Marco/H-6859-2012; Dinescu, Adrian/H-9737-2014; Focardi, Mauro/B-7880-2013 OI Focardi, Mauro/0000-0002-3806-4283 NR 15 TC 6 Z9 6 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 978-1-62841-770-8 J9 PROC SPIE PY 2015 VL 9604 AR 96040A DI 10.1117/12.2186962 PG 15 WC Astronomy & Astrophysics; Instruments & Instrumentation; Optics SC Astronomy & Astrophysics; Instruments & Instrumentation; Optics GA BE0HG UT WOS:000366021400008 ER PT S AU Walker, PW Nicholas, AC Budzien, SE Dymond, K Stephan, A AF Walker, P. W. Nicholas, A. C. Budzien, S. E. Dymond, Kenneth Stephan, A. BE Fineschi, S Fennelly, J TI Stellar Calibration of the Special Sensor Ultraviolet Limb Imager (SSULI) on the DMSP Spacecraft SO SOLAR PHYSICS AND SPACE WEATHER INSTRUMENTATION VI SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Solar Physics and Space Weather Instrumentation VI CY AUG 09-10, 2015 CL San Diego, CA SP SPIE DE ionosphere; thermosphere; airglow; instrumentation; spectrograph; calibration; ultraviolet; UV stars ID ABSOLUTE FLUX; STARS AB The SSULI (Special Sensor Ultraviolet Limb Imager) is a limb-scanning far-and extreme-ultraviolet spectrometer flying on the Defense Meteorological Satellite Program (DMSP). The sensor sensitivity is tracked through the mission life by taking advantage of serendipitous stellar apparitions which, over the course of several days, track across the sensor's field of view, allowing for not only the production of a sensitivity curve when compared against the known stellar spectra, but additionally pointing information and field-of-view information can be gleaned from comparing the star's expected and observed positions. Most notably, because the star's apparition traces across the field of view predictably in one axis, and randomly in another, multiple apparitions of these point sources can be used to map out the gain on the detector's entire surface, revealing the existence and extent of localized gain sags. Additionally, multiple, routinized, and scheduled calibrations can be used to track sensor behavior through the mission life, including effects like a detector scrub, photocathode performance, and possible optics contamination. Results from the SSULI 002/DMSP F18 and SSULI 005/DMSP F19 stellar calibrations are presented. C1 [Walker, P. W.] Computat Phys Inc, Springfield, VA 22151 USA. [Nicholas, A. C.; Budzien, S. E.; Dymond, Kenneth; Stephan, A.] Naval Res Lab, Div Space Sci, Washington, DC 20375 USA. RP Walker, PW (reprint author), Computat Phys Inc, 8001 Braddock Rd Ste 210, Springfield, VA 22151 USA. NR 19 TC 2 Z9 2 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 978-1-62841-770-8 J9 PROC SPIE PY 2015 VL 9604 AR 960403 DI 10.1117/12.2188370 PG 18 WC Astronomy & Astrophysics; Instruments & Instrumentation; Optics SC Astronomy & Astrophysics; Instruments & Instrumentation; Optics GA BE0HG UT WOS:000366021400002 ER PT S AU Allen, MR Kim, JJ Agrawal, BN AF Allen, Matthew R. Kim, Jae Jun Agrawal, Brij N. BE MacEwen, HA Breckinridge, JB TI CORRECTION OF AN ACTIVE SPACE TELESCOPE MIRROR USING A GRADIENT APPROACH AND AN ADDITIONAL DEFORMABLE MIRROR SO UV/OPTICAL/IR SPACE TELESCOPES AND INSTRUMENTS: INNOVATIVE TECHNOLOGIES AND CONCEPTS VII SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on UV/Optical/IR Space Telescopes and Instruments - Innovative Technologies and Concepts VII CY AUG 09-10, 2015 CL San Diego, CA SP SPIE DE segmented mirror telescope; dual deformable mirror; woofer-tweeter; space telescope; adaptive optics; active optics; wavefront control AB High development cost is a challenge for space telescopes and imaging satellites. One of the primary reasons for this high cost is the development of the primary mirror, which must meet diffraction limit surface figure requirements. Recent efforts to develop lower cost, lightweight, replicable primary mirrors include development of silicon carbide actuated hybrid mirrors and carbon fiber mirrors. The silicon carbide actuated hybrid mirrors at the Naval Postgraduate School do not meet the surface quality required for an optical telescope due to high spatial frequency residual surface errors. A technique under investigation at the Naval Postgraduate School is to correct the residual surface figure error using a deformable mirror in the optical path. We present a closed loop feedback gradient controller to actively control a SMT active segment and an additional deformable mirror to reduce residual wavefront error. The simulations and experimental results show that the gradient controller reduces the residual wavefront error more than an integral controller. C1 [Allen, Matthew R.; Kim, Jae Jun; Agrawal, Brij N.] Naval Postgrad Sch, Dept Mech & Aerosp Engn, Monterey, CA 93943 USA. RP Allen, MR (reprint author), Naval Postgrad Sch, Dept Mech & Aerosp Engn, Watkins Hall,700 Dyer Rd, Monterey, CA 93943 USA. NR 12 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 978-1-62841-768-5 J9 PROC SPIE PY 2015 VL 9602 AR 96020B DI 10.1117/12.2188745 PG 11 WC Astronomy & Astrophysics; Instruments & Instrumentation; Optics SC Astronomy & Astrophysics; Instruments & Instrumentation; Optics GA BE0HC UT WOS:000366018200009 ER PT S AU Mitchell, LJ Phlips, BF Grove, JE Cordes, R AF Mitchell, Lee J. Phlips, Bernard F. Grove, J. Eric Cordes, Ryan BE Siegmund, OHW TI Development of the Strontium Iodide Coded Aperture (SICA) Instrument SO UV, X-RAY, AND GAMMA-RAY SPACE INSTRUMENTATION FOR ASTRONOMY XIX SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XIX CY AUG 09-10, 2015 CL San Diego, CA SP SPIE AB The work reports on the development of a Strontium Iodide Coded Aperture (SICA) instrument for use in space-based astrophysics, solar physics, and high-energy atmospheric physics. The Naval Research Laboratory is developing a prototype coded aperture imager that will consist of an 8 x 8 array of SrI2: Eu detectors, each read out by a silicon photomultiplier. The array would be used to demonstrate SrI2: Eu detector performance for space-based missions. Europium-doped strontium iodide (SrI2: Eu) detectors have recently become available, and the material is a strong candidate to replace existing detector technology currently used for space-based gamma-ray astrophysics research. The detectors have a typical energy resolution of 3.2% at 662 keV, a significant improvement over the 6.5% energy resolution of thallium-doped sodium iodide. With a density of 4.59 g/cm and a Z(eff) of 49, SrI2: Eu has a high efficiency for MeV gamma-ray detection. Coupling this with recent improvements in silicon photomultiplier technology (i.e., no bulky photomultiplier tubes) creates high-density, large-area, low-power detector arrays with good energy resolution. Also, the energy resolution of SrI2: Eu makes it ideal for use as the back plane of a Compton telescope. C1 [Mitchell, Lee J.; Phlips, Bernard F.; Grove, J. Eric] Naval Res Lab, High Energy Space Environm Branch, Washington, DC 20375 USA. [Cordes, Ryan] Praxis Inc, Alexandria, VA 22303 USA. RP Mitchell, LJ (reprint author), Naval Res Lab, High Energy Space Environm Branch, 4555 Overlook Ave SW, Washington, DC 20375 USA. NR 25 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 978-1-62841-767-8 J9 PROC SPIE PY 2015 VL 9601 AR 96010A DI 10.1117/12.2195575 PG 12 WC Astronomy & Astrophysics; Instruments & Instrumentation; Optics SC Astronomy & Astrophysics; Instruments & Instrumentation; Optics GA BE0HA UT WOS:000366016700007 ER PT S AU Duffin, RT White, SM Ray, PS Kaiser, ML AF Duffin, R. T. White, S. M. Ray, P. S. Kaiser, M. L. BE Zank, GP TI Type III-L Solar Radio Bursts and Solar Energetic Particle Events SO 14TH ANNUAL INTERNATIONAL ASTROPHYSICS CONFERENCE: LINEAR AND NONLINEAR PARTICLE ENERGIZATION THROUGHOUT THE HELIOSPHERE AND BEYOND SE Journal of Physics Conference Series LA English DT Proceedings Paper CT 14th Annual International Astrophysics Conference CY APR 19-24, 2015 CL Tampa, FL ID CORONAL MASS EJECTIONS; ACCELERATION; ELECTRONS; ORIGIN; FLARES; SHOCKS AB A radio-selected sample of fast drift radio bursts with complex structure occurring after the impulsive phase of the associated flare ("Type III-L bursts") is identified by inspection of radio dynamic spectra from 1 to 180 MHz for over 300 large flares in 2001. An operational definition that takes into account previous work on these radio bursts starting from samples of solar energetic particle (SEP) events is applied to the data, and 66 Type III-L bursts are found in the sample. In order to determine whether the presence of these radio bursts can be used to predict the occurrence of SEP events, we also develop a catalog of all SEP proton events in 2001 using data from the ERNE detector on the SOHO satellite. 68 SEP events are found, for 48 of which we can identify a solar source and hence look for associated Type III-L emission. We confirm previous work that found that most (76% in our sample) of the solar sources of SEP events exhibit radio emission of this type. However, the correlation in the opposite direction is not as strong: starting from a radio-selected sample of Type III-L events, around 64% of the bursts that occur at longitudes magnetically well-connected to the Earth, and hence favorable for detection of SEPs, are associated with SEP events. The degree of association increases when the events have durations over 10 minutes at 1MHz, but in general Type III-L bursts do not perform any better than Type II bursts in our sample as predictors of SEP events. A comparison of Type III-L timing with the arrival of near-relativistic electrons at the ACE spacecraft is not inconsistent with a common source for the accelerated electrons in both phenomena. C1 [Duffin, R. T.] Laney Coll, Oakland, CA 94607 USA. [White, S. M.] US Air Force, Space Vehicles Directorate, Res Lab, Bedford, MA 01731 USA. [Ray, P. S.] Naval Res Lab, Div Space Sci, Washington, DC 20375 USA. [Kaiser, M. L.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA. RP Duffin, RT (reprint author), Laney Coll, 900 Fallon St, Oakland, CA 94607 USA. EM robert.t.duffin@gmail.com NR 30 TC 0 Z9 0 U1 2 U2 4 PU IOP PUBLISHING LTD PI BRISTOL PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND SN 1742-6588 J9 J PHYS CONF SER PY 2015 VL 642 AR 012006 DI 10.1088/1742-6596/642/1/012006 PG 28 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA BD9OJ UT WOS:000364992000006 ER PT S AU Wood, BE Muller, HR AF Wood, Brian E. Mueller, Hans-Reinhard BE Zank, GP TI Ulysses and IBEX Constraints on the Interstellar Neutral Helium Distribution SO 14TH ANNUAL INTERNATIONAL ASTROPHYSICS CONFERENCE: LINEAR AND NONLINEAR PARTICLE ENERGIZATION THROUGHOUT THE HELIOSPHERE AND BEYOND SE Journal of Physics Conference Series LA English DT Proceedings Paper CT 14th Annual International Astrophysics Conference CY APR 19-24, 2015 CL Tampa, FL ID FLOW PARAMETERS; LO OBSERVATIONS; HELIOSPHERE; HE AB We relax the usual assumption of Maxwellian velocity distributions in the interstellar medium (ISM) in the analysis of neutral He particle data from Ulysses and the Interstellar Boundary Explorer (IBEX). For Ulysses, the possibility that a narrow component from heavy neutrals is contaminating the He signal is considered, which could potentially explain the lower ISM temperature measured by Ulysses compared to IBEX. The expected heavy element contribution is about an order of magnitude too small to resolve that discrepancy. For IBEX, we find that modest asymmetries in the ISM velocity distribution can potentially improve the quality of fit to the first two years of data, and perhaps improve agreement with the Ulysses measurements. C1 [Wood, Brian E.] Naval Res Lab, Div Space Sci, Washington, DC 20375 USA. [Mueller, Hans-Reinhard] Dartmouth Coll, Dept Phys & Astron, Hanover, NH 03755 USA. RP Wood, BE (reprint author), Naval Res Lab, Div Space Sci, Washington, DC 20375 USA. EM brian.wood@nrl.navy.mil OI Mueller, Hans-Reinhard/0000-0001-7364-5377 NR 17 TC 0 Z9 0 U1 0 U2 1 PU IOP PUBLISHING LTD PI BRISTOL PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND SN 1742-6588 J9 J PHYS CONF SER PY 2015 VL 642 AR 012029 DI 10.1088/1742-6596/642/1/012029 PG 7 WC Astronomy & Astrophysics; Physics, Particles & Fields SC Astronomy & Astrophysics; Physics GA BD9OJ UT WOS:000364992000029 ER PT S AU Diaz, SA Breger, JC Malanoski, A Claussen, JC Walper, SA Ancona, MG Brown, CW Stewart, MH Oh, E Susumu, K Medintz, IL AF Diaz, Sebastian A. Breger, Joyce C. Malanoski, Anthony Claussen, Jonathan C. Walper, Scott A. Ancona, Mario G. Brown, Carl W., III Stewart, Michael H. Oh, Eunkeu Susumu, Kimihiro Medintz, Igor L. BE Mohseni, H Agahi, MH Razeghi, M TI Modified Kinetics of Enzymes Interacting with Nanoparticles SO BIOSENSING AND NANOMEDICINE VIII SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Biosensing and Nanomedicine VIII CY AUG 09-12, 2015 CL San Diego, CA SP SPIE ID SEMICONDUCTOR QUANTUM DOTS; RESONANCE ENERGY-TRANSFER; PROTEOLYTIC ACTIVITY; GOLD NANOPARTICLES; ACCELERATION; NANOSENSORS AB Enzymes are important players in multiple applications, be it bioremediation, biosynthesis, or as reporters. The business of catalysis and inhibition of enzymes is a multibillion dollar industry and understanding the kinetics of commercial enzymes can have a large impact on how these systems are optimized. Recent advances in nanotechnology have opened up the field of nanoparticle (NP) and enzyme conjugates and two principal architectures for NP conjugate systems have been developed. In the first example the enzyme is bound to the NP in a persistent manner, here we find that key factors such as directed enzyme conjugation allow for enhanced kinetics. Through controlled comparative experiments we begin to tease out specific mechanisms that may account for the enhancement. The second system is based on dynamic interactions of the enzymes with the NP. The enzyme substrate is bound to the NP and the enzyme is free in solution. Here again we find that there are many variables, such as substrate positioning and NP selection, that modify the kinetics. C1 [Diaz, Sebastian A.; Breger, Joyce C.; Malanoski, Anthony; Claussen, Jonathan C.; Walper, Scott A.; Brown, Carl W., III; Medintz, Igor L.] US Navy, Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 USA. [Ancona, Mario G.] Elect Sci & Technol Div, Columbia, MD 21046 USA. [Stewart, Michael H.; Oh, Eunkeu; Susumu, Kimihiro] Opt Sci Div, Columbia, MD 21046 USA. [Oh, Eunkeu; Susumu, Kimihiro] Sotera Def Solut, Columbia, MD 21046 USA. RP Diaz, SA (reprint author), US Navy, Res Lab, Ctr Bio Mol Sci & Engn, Code 6900, Washington, DC 20375 USA. OI Diaz, Sebastian/0000-0002-5568-0512 NR 26 TC 0 Z9 0 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 978-1-62841-716-6 J9 PROC SPIE PY 2015 VL 9550 AR 95500K DI 10.1117/12.2188212 PG 9 WC Biotechnology & Applied Microbiology; Nanoscience & Nanotechnology; Optics SC Biotechnology & Applied Microbiology; Science & Technology - Other Topics; Optics GA BE0FW UT WOS:000365971100013 ER PT S AU Field, LD Delehanty, JB Walper, SA Susumu, K Medintz, IL AF Field, Lauren D. Delehanty, James B. Walper, Scott A. Susumu, Kimihiro Medintz, Igor L. BE Mohseni, H Agahi, MH Razeghi, M TI Semiconductor Quantum Dots as delivery and imaging platforms for intracellular assembly SO BIOSENSING AND NANOMEDICINE VIII SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Biosensing and Nanomedicine VIII CY AUG 09-12, 2015 CL San Diego, CA SP SPIE DE Quantum dots; microinjection; Forster resonance energy transfer; intracellular conjugation AB Efficient and specific delivery of particles and drugs intracellularly is a critical area of research which can allow for further understanding of cellular processes and increased efficacy of therapeutic treatments. Visualizing these delivery mechanisms occurs through use of florescent molecules, some of which are bulky and can change the processes being studied. Alternatively, semiconductor nanocrystals called quantum dots (QDs) are nanoscale particles that provide a scaffold for drugs or targeting moieties while providing superior optical properties that include size-tunable photoluminescence and resistance to photobleaching. Utilizing these platforms, delivery methods and intracellular assembly can be studied. Potential delivery mechanisms include either specified delivery through attenuation to targeting ligands or systemic delivery through microinjection or electroporation. Once within the cytosol, the QDs can assemble to express proteins, a process that can be visualized through the use of FRET. The effectiveness of various delivery methods and QD surface chemistry has been analyzed and is described here. C1 [Field, Lauren D.; Delehanty, James B.; Walper, Scott A.; Medintz, Igor L.] US Navy, Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 USA. [Field, Lauren D.] Univ Maryland, Dept Bioengn, College Pk, MD 20741 USA. [Susumu, Kimihiro] US Navy, Res Lab, Opt Sci Div, Washington, DC 20375 USA. [Susumu, Kimihiro] Sotera Def Solut Inc, Columbia, MD 21046 USA. RP Field, LD (reprint author), US Navy, Res Lab, Ctr Bio Mol Sci & Engn, Code 6900,4555 Overlook Ave SW, Washington, DC 20375 USA. NR 6 TC 0 Z9 0 U1 3 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 978-1-62841-716-6 J9 PROC SPIE PY 2015 VL 9550 AR 955002 DI 10.1117/12.2188392 PG 4 WC Biotechnology & Applied Microbiology; Nanoscience & Nanotechnology; Optics SC Biotechnology & Applied Microbiology; Science & Technology - Other Topics; Optics GA BE0FW UT WOS:000365971100001 ER PT S AU Robinson, ZR Jernigan, GG Bussmann, KM Nyakiti, LO Garces, NY Nath, A Wheeler, VD Myers-Ward, RL Gaskill, K Eddy, CR AF Robinson, Zachary R. Jernigan, Glenn G. Bussmann, Konrad M. Nyakiti, Luke O. Garces, Nelson Y. Nath, Anindya Wheeler, Virginia D. Myers-Ward, Rachael L. Gaskill, Kurt Eddy, Charles R., Jr. BE Razeghi, M Ghazinejad, M Bayram, C Yu, JS TI Graphene Growth on SiC(000-1): Optimization of Surface Preparation and Growth Conditions SO CARBON NANOTUBES, GRAPHENE, AND EMERGING 2D MATERIALS FOR ELECTRONIC AND PHOTONIC DEVICES VIII SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Carbon Nanotubes, Graphene, and Emerging 2D Materials for Electronic and Photonic Devices VIII CY AUG 09-12, 2015 CL San Diego, CA SP SPIE ID EPITAXIAL GRAPHENE; SILICON-CARBIDE; LARGE-AREA; SUBSTRATE; FILMS AB Graphene growth of high crystal quality and single-layer thickness can be achieved by low pressure sublimation (LPS) on SiC(000 (1) over bar). On SiC(000 (1) over bar), which is the C-terminated polar surface, there has been much less success growing uniform, single-layer films. In this work, a systematic study of surface preparation by hydrogen etching followed by LPS in an argon ambient was performed. Hydrogen etching is an important first step in the graphene growth process because it removes damage caused by polishing the substrate surface. However, for SiC(0001), etching at too high of a temperature or for too long has been found to result in pit formation due to the preferential etching of screw dislocations that intersect the surface. It was found that temperatures above 1450 degrees C in 200mbar of hydrogen result in pitting of the surface, whereas etch temperatures at and below 1450 C can result in atomically flat terraces of similar to 1 mu m width. Following the hydrogen etch optimization, argon-mediated graphene growth was carried out at several different temperatures. For the growth experiments, pressure and growth time were both fixed. Regardless of growth temperature, all of the films were found to have non-uniform thickness. Further, x-ray photoelectron spectroscopy and low energy electron diffraction measurements reveal that trace amounts of oxygen, which may be present during growth, significantly affects the graphene growth process on this polar surface. C1 [Robinson, Zachary R.; Jernigan, Glenn G.; Bussmann, Konrad M.; Garces, Nelson Y.; Wheeler, Virginia D.; Myers-Ward, Rachael L.; Gaskill, Kurt; Eddy, Charles R., Jr.] US Naval Res Lab, Washington, DC USA. [Nyakiti, Luke O.] Texas A&M Univ, Galveston, TX USA. [Nath, Anindya] George Mason Univ, Fairfax, VA 22030 USA. RP Robinson, ZR (reprint author), US Naval Res Lab, 4555 Overlook Ave SW, Washington, DC USA. EM ZRobinso@Brockport.edu NR 23 TC 0 Z9 0 U1 3 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 978-1-62841-718-0 J9 PROC SPIE PY 2015 VL 9552 AR 95520Y DI 10.1117/12.2191616 PG 7 WC Engineering, Electrical & Electronic; Nanoscience & Nanotechnology; Optics SC Engineering; Science & Technology - Other Topics; Optics GA BD9WM UT WOS:000365511100021 ER PT B AU Marble, JL Lawless, WF Mittu, R Coyne, J Abramson, M Sibley, C AF Marble, Julie L. Lawless, W. F. Mittu, Ranjeev Coyne, Joseph Abramson, Myriam Sibley, Ciara BE Jajodia, S Shakarian, P Subrahmanian, VS Swarup, V Wang, C TI The Human Factor in Cybersecurity: Robust & Intelligent Defense SO CYBER WARFARE: BUILDING THE SCIENTIFIC FOUNDATION SE Advances in Information Security LA English DT Article; Book Chapter ID ENTROPY AB In this chapter, we reviewthe pervasiveness of cyber threats and the roles of both attackers and cyber users (i.e. the targets of the attackers); the lack of awareness of cyber-threats by users; the complexity of the new cyber environment, including cyber risks; engineering approaches and tools to mitigate cyber threats; and current research to identify proactive steps that users and groups can take to reduce cyberthreats. In addition, we review the research needed on the psychology of users that poses risks to users from cyber-attacks. For the latter, we review the available theory at the individual and group levels that may help individual users, groups and organizations take actions against cyber threats. We end with future research needs and conclusions. In our discussion, we first agreed that cyber threats are making cyber environments more complex and uncomfortable for average users; second, we concluded that various factors are important (e. g., timely actions are often necessary in cyber space to counter the threats of the attacks that commonly occur at internet speeds, but also the 'slowand low'attacks that are difficult to detect, threats that occur only after pre-specified conditions have been satisfied that trigger an unsuspecting attack). Third, we concluded that advanced persistent threats (APTs) pose a risk to users but also to national security (viz., the persistent threats posed by other Nations). Fourth, we contend that using "red" teams to search cyber defenses for vulnerabilities encourages users and organizations to better defend themselves. Fifth, the current state of theory leaves many questions unanswered that researchers must pursue to mitigate or neutralize present and future threats. Lastly, we agree with the literature that cyber space has had a dramatic impact on American life and that the cyber domain is a breeding ground for disorder. However, we also believe that actions by users and researchers can be taken to stay safe and ahead of existing and future threats. C1 [Lawless, W. F.] Paine Coll, Augusta, GA 30901 USA. [Mittu, Ranjeev; Coyne, Joseph; Abramson, Myriam; Sibley, Ciara] Naval Res Lab, Div Informat Technol, Washington, DC 20375 USA. [Marble, Julie L.] Johns Hopkins Univ, Adv Phys Lab, Laurel, MD 20723 USA. [Marble, Julie L.] Johns Hopkins Univ, Asymetr Operat Sect, Laurel, MD 20723 USA. RP Lawless, WF (reprint author), Paine Coll, 1235 15th St, Augusta, GA 30901 USA. EM wlawless@paine.edu; ranjeev.mittu@nrl.navy.mil; joseph.coyne@nrl.navy.mil; myriam.abramson@nrl.navy.mil; ciara.sibley@nrl.navy.mil NR 75 TC 1 Z9 1 U1 1 U2 1 PU SPRINGER PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS BN 978-3-319-14039-1; 978-3-319-14038-4 J9 ADV INFORM SECUR PY 2015 VL 56 BP 173 EP 206 DI 10.1007/978-3-319-14039-1_9 D2 10.1007/978-3-319-14039-1 PG 34 WC Computer Science, Information Systems; Computer Science, Theory & Methods SC Computer Science GA BD9GU UT WOS:000364646900010 ER PT B AU Paxton, NC Russell, S Moskowitz, IS Hyden, P AF Paxton, Napoleon C. Russell, Stephen Moskowitz, Ira S. Hyden, Paul BE Jajodia, S Shakarian, P Subrahmanian, VS Swarup, V Wang, C TI A Survey of Community Detection Algorithms Based On Analysis-Intent SO CYBER WARFARE: BUILDING THE SCIENTIFIC FOUNDATION SE Advances in Information Security LA English DT Article; Book Chapter ID NETWORKS; IDENTIFICATION AB There has been a significant amount of research dedicated to identifying community structures within graphs. Most of these studies have focused on partitioning techniques and the resultant quality of discovered groupings (communities) without regard for the intent of the analysis being conducted (analysis-intent). In many cases, a given network community can be composed of significantly different elements depending upon the context in which a partitioning technique is used or applied. Moreover, the number of communities within a network will vary greatly depending on the analysis- intent and thus the discretion quality and performance of algorithms will similarly vary. In this survey we review several algorithms from the literature developed to discover community structure within networks. We review these approaches from two analysis perspectives: role/process focused (category-based methods) and topological structure or connection focused (event-based methods). We discuss the strengths and weaknesses of each algorithm and provide suggestions on the algorithms' use depending on analysis context. C1 [Paxton, Napoleon C.; Russell, Stephen; Moskowitz, Ira S.; Hyden, Paul] Naval Res Lab, Div Informat Technol, Washington, DC 20375 USA. RP Paxton, NC (reprint author), Naval Res Lab, Div Informat Technol, 4555 Overlook Ave, Washington, DC 20375 USA. EM napoleon.paxton@nrl.navy.mil; stephen.russell@nrl.navy.mil; ira.moskowitz@nrl.navy.mil; paul.hyden@nrl.navy.mil NR 60 TC 0 Z9 0 U1 0 U2 1 PU SPRINGER PI DORDRECHT PA PO BOX 17, 3300 AA DORDRECHT, NETHERLANDS BN 978-3-319-14039-1; 978-3-319-14038-4 J9 ADV INFORM SECUR PY 2015 VL 56 BP 237 EP 263 DI 10.1007/978-3-319-14039-1_12 D2 10.1007/978-3-319-14039-1 PG 27 WC Computer Science, Information Systems; Computer Science, Theory & Methods SC Computer Science GA BD9GU UT WOS:000364646900013 ER PT S AU Guenthner, AJ Harvey, BG Davis, MC Ford, MD Meylemans, HA Wright, ME Chafin, AP Mabry, JM AF Guenthner, Andrew J. Harvey, Benjamin G. Davis, Matthew C. Ford, Michael D. Meylemans, Heather A. Wright, Michael E. Chafin, Andrew P. Mabry, Joseph M. BE Cheng, HN Gross, RA Smith, PB TI Structure-Property Relationships for Polycyanurate Networks Derived from Renewable Resources SO GREEN POLYMER CHEMISTRY: BIOBASED MATERIALS AND BIOCATALYSIS SE ACS Symposium Series LA English DT Proceedings Paper CT Symposium on Green Polymer Chemistry: Biobased Materials and Biocatalysis / American-Chemical-Society National Meeting CY AUG 10-14, 2014 CL San Francisco, CA SP Amer Chem Soc, Div Polymer Chem Inc ID CYANATE ESTER RESINS; THERMOSETTING RESINS; COMPOSITE AB The recent synthesis of a wide variety of cyanate ester monomers that may be derived from renewable resources has created a newly available set of chemical structures that, due to a wide range of chemical features, provide a unique opportunity for the development of quantitative structure-property relationships for dicyanate esters and their polymerized networks. Specific structure-property relationships for monomer melting point, glass transition temperature at full conversion, and char yields at 600 degrees C under nitrogen and air have been developed with the aid of partial least squares methods. The predictions inherent in these structure-property relationships are examined and compared to predictions based on ordinary least squares methods. Specific predictions for the properties of two as-yet unsynthesized dicyanate ester monomers derived from renewable resources are also presented. C1 [Guenthner, Andrew J.; Mabry, Joseph M.] Air Force Res Lab, Aerosp Syst Directorate, Edwards AFB, CA 93524 USA. [Harvey, Benjamin G.; Davis, Matthew C.; Meylemans, Heather A.; Wright, Michael E.; Chafin, Andrew P.] Naval Air Warfare Ctr, Weap Div, China Lake, CA 93555 USA. [Ford, Michael D.] ERC Inc, Air Force Res Lab, Edwards AFB, CA 93524 USA. RP Guenthner, AJ (reprint author), Air Force Res Lab, Aerosp Syst Directorate, 10 E Saturn Blvd, Edwards AFB, CA 93524 USA. EM andrew.guenthner@us.af.mil NR 19 TC 0 Z9 0 U1 0 U2 0 PU AMER CHEMICAL SOC PI WASHINGTON PA 1155 SIXTEENTH ST NW, WASHINGTON, DC 20036 USA SN 0097-6156 BN 978-0-8412-3066-8; 978-0-8412-3065-1 J9 ACS SYM SER JI ACS Symp. Ser. PY 2015 VL 1192 BP 431 EP 452 PG 22 WC Biotechnology & Applied Microbiology; Polymer Science SC Biotechnology & Applied Microbiology; Polymer Science GA BE0EY UT WOS:000365936900026 ER PT J AU Tang, YX He, CL Mitchell, LA Parrish, DA Shreeve, JM AF Tang, Yongxing He, Chunlin Mitchell, Lauren A. Parrish, Damon A. Shreeve, Jean'ne M. TI Energetic compounds consisting of 1,2,5-and 1,3,4-oxadiazole rings SO JOURNAL OF MATERIALS CHEMISTRY A LA English DT Article ID SALTS AB 3-Nitroamino-4-(5-amino-1,3,4-oxadiazol-2-yl) furazan monohydrate (2 center dot H2O), which is a combination of the nitroaminofurazan and 1,3,4-oxadiazole rings, was obtained by the nitration of 3-amino-4-(5-amino-1,3,4- oxadiazol-2-yl) furazan (1) with 100% nitric acid. Several energetic derivatives of 2 were prepared and fully characterized by multinuclear NMR, and IR spectroscopy, as well as elemental analysis. X-ray analyses for 1, 2 center dot H2O and 5 center dot H2O give insight into structural characteristics showing the presence of extensive hydrogen-bonding interactions. Most of these new materials exhibit good thermal stabilities and acceptable sensitivity values. Detonation performance numbers were obtained based on the calculated heats of formation and measured densities indicating that some of these bonded nitroaminofurazan/oxadiazole materials are comparable to RDX. C1 [Tang, Yongxing; He, Chunlin; Shreeve, Jean'ne M.] Univ Idaho, Dept Chem, Moscow, ID 83844 USA. [Mitchell, Lauren A.; Parrish, Damon A.] Naval Res Lab, Washington, DC 20375 USA. RP Shreeve, JM (reprint author), Univ Idaho, Dept Chem, Moscow, ID 83844 USA. EM jshreeve@uidaho.edu OI Mitchell, Lauren/0000-0002-1311-0108 FU Office of Naval Research [NOOO14-12-1-0536]; Defense Threat Reduction Agency [HDTRA 1-11-1-0034] FX Financial support of the Office of Naval Research (NOOO14-12-1-0536), and the Defense Threat Reduction Agency (HDTRA 1-11-1-0034) are gratefully acknowledged. NR 32 TC 7 Z9 7 U1 0 U2 9 PU ROYAL SOC CHEMISTRY PI CAMBRIDGE PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND SN 2050-7488 EI 2050-7496 J9 J MATER CHEM A JI J. Mater. Chem. A PY 2015 VL 3 IS 46 BP 23143 EP 23148 DI 10.1039/c5ta06898c PG 6 WC Chemistry, Physical; Energy & Fuels; Materials Science, Multidisciplinary SC Chemistry; Energy & Fuels; Materials Science GA CW7YS UT WOS:000365216000008 ER PT S AU Meadows, C AF Meadows, Catherine BE MartiOliet, N Olveczky, PC Talcott, C TI Emerging Issues and Trends in Formal Methods in Cryptographic Protocol Analysis: Twelve Years Later SO LOGIC, REWRITING, AND CONCURRENCY SE Lecture Notes in Computer Science LA English DT Proceedings Paper CT Festschrift Symposium in Honor of Jose Meseguer CY SEP 23-25, 2015 CL Urbana, IL ID SECURITY PROTOCOLS; SOUND; VERIFICATION; RESISTANCE; PROOFS AB In 2003 I published a paper "Formal Methods in Cryptographic Protocol Analysis: Emerging Issues and Trends", in which I identified the various open problems related to applying formal methods to the analysis of cryptographic protocols as we saw them then, and discussed the state of the art and the problems that still needed to be solved. Twelve years later, it is time for a an update and a reassessment. In this paper I revisit the open problems that I addressed in the original paper, discussing the progress that has been made in the intervening years, and the problems that still remain to be solved. I also discuss some new open problems that have arisen since then. C1 [Meadows, Catherine] Naval Res Lab, Washington, DC 20375 USA. RP Meadows, C (reprint author), Naval Res Lab, Washington, DC 20375 USA. EM meadows@itd.nrl.navy.mil NR 80 TC 0 Z9 0 U1 0 U2 2 PU SPRINGER INT PUBLISHING AG PI CHAM PA GEWERBESTRASSE 11, CHAM, CH-6330, SWITZERLAND SN 0302-9743 BN 978-3-319-23165-5; 978-3-319-23164-8 J9 LECT NOTES COMPUT SC PY 2015 VL 9200 BP 475 EP 492 DI 10.1007/978-3-319-23165-5_22 PG 18 WC Computer Science, Software Engineering; Computer Science, Theory & Methods; Logic SC Computer Science; Science & Technology - Other Topics GA BD9SC UT WOS:000365181600022 ER PT S AU Guo, LJ Lane, PA AF Guo, L. Jay Lane, Paul A. BE Kafafi, ZH Lane, PA Samuel, IDW TI Colored ultra-thin hybrid photovoltaics with high quantum efficiency for decorative PV applications SO ORGANIC PHOTOVOLTAICS XVI SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Organic Photovoltaics XVI CY AUG 10-13, 2015 CL San Diego, CA SP SPIE, Raynergy Tek Inc C1 [Guo, L. Jay] Univ Michigan, Ann Arbor, MI 48109 USA. [Lane, Paul A.] US Naval Res Lab, Washington, DC USA. RP Guo, LJ (reprint author), Univ Michigan, Ann Arbor, MI 48109 USA. NR 0 TC 0 Z9 0 U1 1 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 978-1-62841-733-3 J9 PROC SPIE PY 2015 VL 9567 AR 95670G DI 10.1117/12.2191612 PG 1 WC Energy & Fuels; Optics SC Energy & Fuels; Optics GA BE0CN UT WOS:000365813100007 ER PT S AU Jen, AKY Lane, PA AF Jen, Alex K. -Y. Lane, Paul A. BE Kafafi, ZH Lane, PA Samuel, IDW TI Rational material, interface, and device engineering for high-performance polymer and perovskite solar cells SO ORGANIC PHOTOVOLTAICS XVI SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Organic Photovoltaics XVI CY AUG 10-13, 2015 CL San Diego, CA SP SPIE, Raynergy Tek Inc C1 [Jen, Alex K. -Y.] Univ Washington, Seattle, WA 98195 USA. [Lane, Paul A.] US Naval Res Lab, Washington, DC USA. RP Jen, AKY (reprint author), Univ Washington, Seattle, WA 98195 USA. NR 0 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 978-1-62841-733-3 J9 PROC SPIE PY 2015 VL 9567 AR 95670S DI 10.1117/12.2191610 PG 1 WC Energy & Fuels; Optics SC Energy & Fuels; Optics GA BE0CN UT WOS:000365813100016 ER PT S AU Lee, H Puodziukynaite, E Emrick, T Briseno, AL Lane, PA AF Lee, Hyunbok Puodziukynaite, Egle Emrick, Todd Briseno, Alejandro L. Lane, Paul A. BE Kafafi, ZH Lane, PA Samuel, IDW TI Poly(sulfobetaine methacrylate)s as electrode modifiers for inverted solar cells SO ORGANIC PHOTOVOLTAICS XVI SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Organic Photovoltaics XVI CY AUG 10-13, 2015 CL San Diego, CA SP SPIE, Raynergy Tek Inc C1 [Lee, Hyunbok; Puodziukynaite, Egle; Emrick, Todd; Briseno, Alejandro L.] Univ Massachusetts Amherst, Amherst, MA 01003 USA. [Lane, Paul A.] US Naval Res Lab, Washington, DC USA. RP Lee, H (reprint author), Univ Massachusetts Amherst, Amherst, MA 01003 USA. NR 0 TC 0 Z9 0 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 978-1-62841-733-3 J9 PROC SPIE PY 2015 VL 9567 AR 956704 DI 10.1117/12.2191606 PG 1 WC Energy & Fuels; Optics SC Energy & Fuels; Optics GA BE0CN UT WOS:000365813100001 ER PT B AU Petry, FE Yager, RR AF Petry, Frederick E. Yager, Ronald R. BA Sugumaran, V BF Sugumaran, V TI Influencing Actions-Related Decisions Using Soft Computing Approaches SO RECENT ADVANCES IN INTELLIGENT TECHNOLOGIES AND INFORMATION SYSTEMS SE Advances in Computational Intelligence and Robotics (ACIR) Book Series LA English DT Article; Book Chapter ID ROBOTS; HIERARCHIES; WORDS; LOGIC; MODEL AB This chapter describes soft computing approaches for human-agent communications in the context of influencing decision-making behavior for health-related actions. Several methods are illustrated including using a person's predispositions and generalization techniques that allow issues to be viewed in a more favorable light with social interaction persuasion tendencies modeled with soft computing. The context of a robotic assistant for the elderly is used to illustrate the various communication techniques. Hierarchical generalization is introduced as a technique for generating potential alternatives in choices that might be more broadly acceptable to an individual who is being motivated towards a better choice. Finally, the related topic of negotiations using some the developed techniques is presented. C1 [Petry, Frederick E.] Naval Res Lab, Stennis Space Ctr, MS 39529 USA. [Yager, Ronald R.] Iona Coll, Inst Machine Intelligence, New Rochelle, NY USA. [Yager, Ronald R.] Iona Coll, Informat & Decis Technol, New Rochelle, NY USA. RP Petry, FE (reprint author), Naval Res Lab, Stennis Space Ctr, MS 39529 USA. NR 37 TC 0 Z9 0 U1 0 U2 0 PU IGI GLOBAL PI HERSEY PA 701 E CHOCOLATE AVE, STE 200, HERSEY, PA 17033-1240 USA BN 978-1-4666-6640-5; 978-1-4666-6639-9 J9 ADV COMPU INTELL ROB PY 2015 BP 123 EP 136 DI 10.4018/978-1-4666-6639-9.ch007 D2 10.4018/978-1-4666-6639-9 PG 14 WC Computer Science, Artificial Intelligence; Computer Science, Information Systems SC Computer Science GA BD7JR UT WOS:000363220900008 ER PT J AU Roy, D Casalini, R Roland, CM AF Roy, D. Casalini, R. Roland, C. M. TI The effect of nanoclay on the rheology and dynamics of polychlorinated biphenyl SO SOFT MATTER LA English DT Article ID SILICATE NANOCOMPOSITES; DIELECTRIC-SPECTROSCOPY; POLY(VINYL ACETATE); SEGMENTAL DYNAMICS; NATURAL-RUBBER; POLYMER MELTS; LIQUIDS; RELAXATION; MODEL; REINFORCEMENT AB The thermal, rheological, and mechanical and dielectric relaxation properties of exfoliated dispersions of montmorillonite clay in a molecular liquid, polychlorobiphenyl (PCB), were studied. The viscosity enhancement at low concentrations of clay (r5%) exceeded by a factor of 50 the increase obtainable with conventional fillers. However, the effect of the nanoclay on the local dynamics, including the glass transition temperature, was quite small. All materials herein conformed to density-scaling of the reorientation relaxation time of the PCB for a common value of the scaling exponent. A new relaxation process was observed in the mixtures, associated with PCB molecules in proximity to the clay surface. This process has an anomalously high dielectric strength, suggesting a means to exploit nanoparticles to achieve large electrical energy absorption. This lower frequency dispersion has a weaker dependence on pressure and density, consistent with dynamics constrained by interactions with the particle surface. C1 [Roy, D.; Casalini, R.; Roland, C. M.] Naval Res Lab, Div Chem, Washington, DC 20375 USA. RP Roland, CM (reprint author), Naval Res Lab, Div Chem, Code 6120, Washington, DC 20375 USA. EM roland@nrl.navy.mil FU Office of Naval Research FX This work was supported by the Office of Naval Research. DR acknowledges a National Research Council postdoctoral fellowship. We thank S. Qadri for the WAXS measurements and D. Fragiadakis for enlightening discussions. NR 43 TC 4 Z9 4 U1 2 U2 8 PU ROYAL SOC CHEMISTRY PI CAMBRIDGE PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND SN 1744-683X EI 1744-6848 J9 SOFT MATTER JI Soft Matter PY 2015 VL 11 IS 48 BP 9379 EP 9384 DI 10.1039/c5sm02054a PG 6 WC Chemistry, Physical; Materials Science, Multidisciplinary; Physics, Multidisciplinary; Polymer Science SC Chemistry; Materials Science; Physics; Polymer Science GA CX7UJ UT WOS:000365908000014 PM 26434541 ER PT S AU Neville, KJ McLean, ALMT Sherwood, S Kaste, K Walwanis, M Bolton, A AF Neville, Kelly J. McLean, Angus L. M. Thom, III Sherwood, Sarah Kaste, Katherine Walwanis, Melissa Bolton, Amy BE Schmorrow, DD Fidopiastis, CM TI Live-Virtual-Constructive (LVC) Training in Air Combat: Emergent Training Opportunities and Fidelity Ripple Effects SO FOUNDATIONS OF AUGMENTED COGNITION, AC 2015 SE Lecture Notes in Artificial Intelligence LA English DT Proceedings Paper CT 9th International Conference on Augmented Cognition (AC) Held as Part of 17th International Conference on Human-Computer Interaction (HCI International) CY AUG 02-07, 2015 CL Los Angeles, CA AB Live training is where air combat personnel gain practice and experience with situations as close to real combat as possible. Computer-generated entities could expand the range and complexity of scenarios used in live training and could offer instructors a new means of manipulating the training environment. These new capabilities might help aircrew boost their proficiency beyond what is currently achieved in live training. On the other hand, computer-generated entities add artificiality to the live training environment, reducing its similarity to real combat. As part of a research program conducted to examine how the introduction of Live, Virtual, Constructive (LVC) training technology may change air combat training, we identified strategies to support learning and the acceleration of proficiency development. In this paper, we present these new possibilities for live training and discuss their implications for the fidelity of the training experience, related research, and research needs. C1 [Neville, Kelly J.; Kaste, Katherine; Walwanis, Melissa] Naval Air Warfare Ctr, Training Syst Div, Orlando, FL 32826 USA. [McLean, Angus L. M. Thom, III] Georgia Inst Technol, Atlanta, GA 30332 USA. [Sherwood, Sarah] Embry Ridde Aeronaut Univ, Daytona Beach, FL USA. [Bolton, Amy] Off Naval Res, Arlington, VA 22217 USA. RP Neville, KJ (reprint author), Naval Air Warfare Ctr, Training Syst Div, Orlando, FL 32826 USA. EM Kelly.Neville@navy.mil; Thom.Mclean@gmail.com; Sherwoo9@my.erau.edu; Katherine.Kaste@navy.mil; Melissa.Walwanis@navy.mil; Amy.Bolton@navy.mil NR 6 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 978-3-319-20816-9; 978-3-319-20815-2 J9 LECT NOTES ARTIF INT PY 2015 VL 9183 BP 82 EP 90 DI 10.1007/978-3-319-20816-9_9 PG 9 WC Computer Science, Artificial Intelligence; Computer Science, Information Systems SC Computer Science GA BD9KA UT WOS:000364809400009 ER PT S AU Oh, H Hatfield, BD Jaquess, KJ Lo, LC Tan, YY Prevost, MC Mohler, JM Postlethwaite, H Rietschel, JC Miller, MW Blanco, JA Chen, S Gentili, RJ AF Oh, Hyuk Hatfield, Bradley D. Jaquess, Kyle J. Lo, Li-Chuan Tan, Ying Ying Prevost, Michael C. Mohler, Jessica M. Postlethwaite, Hartley Rietschel, Jeremy C. Miller, Matthew W. Blanco, Justin A. Chen, Shuo Gentili, Rodolphe J. BE Schmorrow, DD Fidopiastis, CM TI A Composite Cognitive Workload Assessment System in Pilots Under Various Task Demands Using Ensemble Learning SO FOUNDATIONS OF AUGMENTED COGNITION, AC 2015 SE Lecture Notes in Artificial Intelligence LA English DT Proceedings Paper CT 9th International Conference on Augmented Cognition (AC) Held as Part of 17th International Conference on Human-Computer Interaction (HCI International) CY AUG 02-07, 2015 CL Los Angeles, CA DE Attentional reserve; Mental workload; Simulated visuomotor task; Ensemble of classifiers ID MENTAL WORKLOAD AB The preservation of attentional resources under mental stress holds particular importance for the execution of effective performance. Specifically, the failure to conserve attentional resources could result in an overload of attentional capacity, the failure to execute critical brain processes, and suboptimal decision-making for effective motor performance. Therefore, assessment of attentional resources is particularly important for individuals such as pilots who must retain adequate attentional reserve to respond to unexpected events when executing their primary task. This study aims to devise an expert model to assess an operator's dynamic cognitive workload in a flight simulator under various levels of challenge. The results indicate that the operator's cognitive workload can be effectively predicted with combined classifiers of neurophysiological biomarkers, subjective assessments of perceived cognitive workload, and task performance. This work provides conceptual feasibility to develop a real-time cognitive state monitoring tool that facilitates adaptive human-computer interaction in operational environments. C1 [Oh, Hyuk; Hatfield, Bradley D.; Tan, Ying Ying; Gentili, Rodolphe J.] Univ Maryland, Neurosci & Cognit Sci Program, College Pk, MD 20742 USA. [Hatfield, Bradley D.; Jaquess, Kyle J.; Lo, Li-Chuan; Gentili, Rodolphe J.] Univ Maryland, Dept Kinesiol, College Pk, MD 20742 USA. [Gentili, Rodolphe J.] Univ Maryland, Maryland Robot Ctr, College Pk, MD 20742 USA. [Chen, Shuo] Univ Maryland, Dept Epidemiol & Biostat, College Pk, MD 20742 USA. [Prevost, Michael C.] Naval Survival Training Inst, Pensacola, FL 32508 USA. [Mohler, Jessica M.] US Naval Acad, Midshipmen Dev Ctr, Annapolis, MD 21402 USA. [Postlethwaite, Hartley; Blanco, Justin A.] US Naval Acad, Elect & Comp Engn Dept, Annapolis, MD 21402 USA. [Rietschel, Jeremy C.] VA Maryland Hlth Care Syst, Maryland Exercise & Robot Ctr Excellence, Baltimore, MD 21201 USA. [Miller, Matthew W.] Auburn Univ, Sch Kinesiol, Auburn, AL 36849 USA. RP Oh, H (reprint author), Univ Maryland, Neurosci & Cognit Sci Program, College Pk, MD 20742 USA. EM hyukoh@umd.edu NR 14 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 978-3-319-20816-9; 978-3-319-20815-2 J9 LECT NOTES ARTIF INT PY 2015 VL 9183 BP 91 EP 100 DI 10.1007/978-3-319-20816-9_10 PG 10 WC Computer Science, Artificial Intelligence; Computer Science, Information Systems SC Computer Science GA BD9KA UT WOS:000364809400010 ER PT J AU Chen, CA Won, M Stoleru, R Xie, GG AF Chen, Chien-An Won, Myounggyu Stoleru, Radu Xie, Geoffrey G. TI Energy-Efficient Fault-Tolerant Data Storage and Processing in Mobile Cloud SO IEEE TRANSACTIONS ON CLOUD COMPUTING LA English DT Article DE Mobile computing; cloud computing; mobile cloud; energy-efficient computing; fault-tolerant computing AB Despite the advances in hardware for hand-held mobile devices, resource-intensive applications (e.g., video and image storage and processing or map-reduce type) still remain off bounds since they require large computation and storage capabilities. Recent research has attempted to address these issues by employing remote servers, such as clouds and peer mobile devices. For mobile devices deployed in dynamic networks (i.e., with frequent topology changes because of node failure/unavailability and mobility as in a mobile cloud), however, challenges of reliability and energy efficiency remain largely unaddressed. To the best of our knowledge, we are the first to address these challenges in an integrated manner for both data storage and processing in mobile cloud, an approach we call k-out-of-n computing. In our solution, mobile devices successfully retrieve or process data, in the most energy-efficient way, as long as k out of n remote servers are accessible. Through a real system implementation we prove the feasibility of our approach. Extensive simulations demonstrate the fault tolerance and energy efficiency performance of our framework in larger scale networks. C1 [Chen, Chien-An; Won, Myounggyu; Stoleru, Radu] Texas A&M Univ, Dept Comp Sci & Engn, College Stn, TX 77840 USA. [Xie, Geoffrey G.] Naval Post Grad Sch, Dept Comp Sci, Monterey, CA 93943 USA. RP Chen, CA (reprint author), Texas A&M Univ, Dept Comp Sci & Engn, College Stn, TX 77840 USA. EM stoleru@cse.tamu.edu; mgwon@cse.tamu.edu; jaychen2010@neo.tamu.edu; xie@nps.edu NR 24 TC 6 Z9 7 U1 0 U2 0 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 2168-7161 J9 IEEE TRANS CLOUD COM JI IEEE Trans. Cloud Comput. PD JAN-MAR PY 2015 VL 3 IS 1 BP 28 EP 41 DI 10.1109/TCC.2014.2326169 PG 14 WC Computer Science, Software Engineering SC Computer Science GA CW9PB UT WOS:000365329600003 ER PT S AU Garcia-Cardona, C Flenner, A Percus, AG AF Garcia-Cardona, Cristina Flenner, Arjuna Percus, Allon G. BE Fred, A DeMarsico, M TI Multiclass Semi-supervised Learning on Graphs Using Ginzburg-Landau Functional Minimization SO PATTERN RECOGNITION APPLICATIONS AND METHODS, ICPRAM 2013 SE Advances in Intelligent Systems and Computing LA English DT Proceedings Paper CT 2nd International Conference on Pattern Recognition Applications and Methods (ICPRAM) CY FEB 15-18, 2013 CL Barcelona, SPAIN SP Inst Syst & Technologies Informat, Control & Commun, Assoc Advancement Artificial Intelligence DE Diffuse interfaces; Learning on graphs; Semi-supervised methods ID MULTIPHASE IMAGE SEGMENTATION AB We present a graph-based variational algorithm for classification of high-dimensional data, generalizing the binary diffuse interface model to the case of multiple classes. Motivated by total variation techniques, the method involves minimizing an energy functional made up of three terms. The first two terms promote a stepwise continuous classification function with sharp transitions between classes, while preserving symmetry among the class labels. The third term is a data fidelity term, allowing us to incorporate prior information into the model in a semi-supervised framework. The performance of the algorithm on synthetic data, as well as on the COIL and MNIST benchmark datasets, is competitive with state-of-the-art graph-based multiclass segmentation methods. C1 [Garcia-Cardona, Cristina; Percus, Allon G.] Claremont Grad Univ, Inst Math Sci, Claremont, CA 91711 USA. [Flenner, Arjuna] Naval Air Warfare Ctr, Phys & Computat Sci, China Lake, CA 93555 USA. RP Garcia-Cardona, C (reprint author), Claremont Grad Univ, Inst Math Sci, Claremont, CA 91711 USA. EM cristina.cgarcia@gmail.com; allon.percus@cgu.edu NR 31 TC 1 Z9 1 U1 0 U2 0 PU SPRINGER-VERLAG BERLIN PI BERLIN PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY SN 2194-5357 BN 978-3-319-12610-4; 978-3-319-12609-8 J9 ADV INTELL SYST PY 2015 VL 318 BP 119 EP 135 DI 10.1007/978-3-319-12610-4_8 PG 17 WC Computer Science, Artificial Intelligence; Computer Science, Theory & Methods SC Computer Science GA BD9KP UT WOS:000364822300008 ER PT B AU Shlesinger, M AF Shlesinger, Michael BE Frame, M Cohen, N TI Math and physics: Levy flights and drives SO BENOIT MANDELBROT: A LIFE IN MANY DIMENSIONS SE Fractals and Dynamics in Mathematics Science and the Arts-Theory and Applications LA English DT Article; Book Chapter ID RANDOM-WALKS; DIFFUSION AB Benoit Mandelbrot had a profound influence in the physics community by connecting scaling and geometry. One example is the Levy flight. In this memorial issue, in honor of Benoit, I review some personal history and ideas on the mathematics of Levy flights and then introduce Levy drives for applications to physical problems. C1 [Shlesinger, Michael] Off Naval Res, Arlington, VA 22203 USA. RP Shlesinger, M (reprint author), Off Naval Res, Code 30,875 N Randolph St, Arlington, VA 22203 USA. NR 18 TC 0 Z9 0 U1 0 U2 0 PU WORLD SCIENTIFIC PUBL CO PTE LTD PI SINGAPORE PA PO BOX 128 FARRER RD, SINGAPORE 9128, SINGAPORE BN 978-981-4366-07-6; 978-981-4366-06-9 J9 FRACT DYNAM MATH SCI PY 2015 BP 449 EP 457 D2 10.1142/8238 PG 9 WC History & Philosophy Of Science; Mathematics SC History & Philosophy of Science; Mathematics GA BD7GP UT WOS:000363056400022 ER PT J AU Greenlee, JD Anderson, TJ Feigelson, BN Wheeler, VD Hobart, KD Kub, FJ AF Greenlee, Jordan D. Anderson, Travis J. Feigelson, Boris N. Wheeler, Virginia D. Hobart, Karl D. Kub, Francis J. TI Comparison of AlN Encapsulants for Bulk GaN Multicycle Rapid Thermal Annealing SO ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY LA English DT Article ID CHEMICAL-VAPOR-DEPOSITION; ION-IMPLANTED GAN; ACTIVATION; GROWTH; SAPPHIRE AB Sputtered AlN capping layers deposited at different temperatures were compared for their efficacy in protecting bulk GaN substrates during high temperature annealing. AlN sputtered at a substrate temperature of 400 degrees C on the epi-ready surface of bulk GaN cracked due to the strain associated with the lattice mismatch between AlN and GaN. AlN caps sputtered on the rougher optically-polished surface did not crack due to strain relief that results from polishing damage. During heating pulses with a maximum temperature of 1400 degrees C, the exposed GaN in the cracked regions was damaged due to GaN decomposition. In contrast, AlN capping layers deposited at room temperature did not exhibit cracking since this condition energetically prevents the AlN from orienting to the GaN surface and forming cracks. Even after 20 rapid heating cycles with a maximum temperature of 1400 degrees C, the GaN surface remains very smooth (0.70 nm RMS) over a 350 mu m x 260 mu m area. The ability to anneal bulk GaN at high temperatures without surface degradation using the AlN cap developed herein is a critical processing step that will enable planar processing for future vertical III-nitride devices. (C) The Author(s) 2015. Published by ECS. C1 [Greenlee, Jordan D.; Anderson, Travis J.; Feigelson, Boris N.; Wheeler, Virginia D.; Hobart, Karl D.; Kub, Francis J.] Naval Res Lab, Washington, DC 20375 USA. RP Greenlee, JD (reprint author), Naval Res Lab, Washington, DC 20375 USA. EM jordan.greenlee@gmail.com FU Office of Naval Research; Naval Research Laboratory FX This research was performed while J. D. Greenlee held a National Research Council Research Associateship Award at the Naval Research Laboratory. Research at NRL was supported by the Office of Naval Research. NR 31 TC 3 Z9 3 U1 5 U2 9 PU ELECTROCHEMICAL SOC INC PI PENNINGTON PA 65 SOUTH MAIN STREET, PENNINGTON, NJ 08534 USA SN 2162-8769 J9 ECS J SOLID STATE SC JI ECS J. Solid State Sci. Technol. PY 2015 VL 4 IS 12 BP P403 EP P407 DI 10.1149/2.0031512jss PG 5 WC Materials Science, Multidisciplinary; Physics, Applied SC Materials Science; Physics GA CW1PV UT WOS:000364764700011 ER PT J AU Kolel-Veetil, MK Gamache, RM Bernstein, N Goswami, R Qadri, SB Fears, KP Miller, JB Glaser, ER Keller, TM AF Kolel-Veetil, Manoj K. Gamache, Raymond M. Bernstein, Noam Goswami, Ramasis Qadri, Syed B. Fears, Kenan P. Miller, Joel B. Glaser, Evan R. Keller, Teddy M. TI Substitution of silicon within the rhombohedral boron carbide (B4C) crystal lattice through high-energy ball-milling SO JOURNAL OF MATERIALS CHEMISTRY C LA English DT Article ID NUCLEAR-MAGNETIC-RESONANCE; RAMAN-SPECTROSCOPY; THERMOELECTRIC PROPERTIES; PHASE; COMPOSITES; CERAMICS; C-13 AB Boron carbide (B4C) is a ceramic with a structure composed of B-12 or B11C icosahedra bonded to each other and to three (C and/or B)-atom chains. Despite its excellent hardness, B4C fails catastrophically under shock loading, but substituting other elements into lattice sites may change and possibly improve its mechanical properties. Density functional theory calculations of elemental inclusions in the most abundant polytypes of boron carbide, B-12-CCC, B-12-CBC, and B11Cp-CBC, predict that the preferential substitution site for metallic elements (Be, Mg and Al) is the chain center atom and that for non-metallic elements (N, P and S) it is generally the chain end atom of the three-atom chain in B4C's rhombohedral crystal lattice. However, Si, a semi-metal, seems to prefer the chain center in B-12-CCC and icosahedral polar sites in both B-12-CBC and B11Cp-CBC. As a first step to testing the feasibility of elemental substitutions experimentally, Si atoms were incorporated into B4C at low temperatures (similar to 200-400 degrees C) by high-energy ball-milling. High-resolution transmission electron microscopy showed that the Si atoms were uniformly dispersed in the product, and the magnitude of the lattice expansion and Rietveld analysis of the X-ray diffraction data were analyzed to determine the likely sites of Si substitution in B4C. Further corroborative evidence was obtained from electron spin resonance spectroscopy, magic-angle spinning nuclear magnetic resonance spectroscopy, X-ray photoelectron spectroscopy and Raman spectroscopy characterizations of the samples. Thus, a simple, top-down approach to manipulating the chemistry of B4C is presented with potential for generating materials with tailored properties for a broad range of applications. C1 [Kolel-Veetil, Manoj K.; Gamache, Raymond M.; Fears, Kenan P.; Miller, Joel B.; Keller, Teddy M.] Naval Res Lab, Div Chem, Washington, DC 20375 USA. [Bernstein, Noam; Goswami, Ramasis; Qadri, Syed B.] Naval Res Lab, Mat Sci & Technol Div, Washington, DC 20375 USA. [Glaser, Evan R.] Naval Res Lab, Elect Sci & Technol Div, Washington, DC 20375 USA. RP Kolel-Veetil, MK (reprint author), Naval Res Lab, Div Chem, Washington, DC 20375 USA. EM Manoj.kolel-veetil@nrl.navy.mil FU Office of Naval Research through the Naval Research Laboratory's basic research program; Defense Advanced Research Projects Agency [HR0011514231] FX The authors wish to acknowledge the financial support of the Office of Naval Research through the Naval Research Laboratory's basic research program. This work was also partially supported by the Defense Advanced Research Projects Agency (HR0011514231, program manager, Dr Judah Goldwasser). The authors also acknowledge insightful discussions with Drs P.D. Pancharatna and M.M. Balakrishnarajan of the Pondicherry University, India, during the preparation of this manuscript. The authors declare that there are no financial conflicts of interest involving this research. NR 73 TC 5 Z9 5 U1 2 U2 11 PU ROYAL SOC CHEMISTRY PI CAMBRIDGE PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND SN 2050-7526 EI 2050-7534 J9 J MATER CHEM C JI J. Mater. Chem. C PY 2015 VL 3 IS 44 BP 11705 EP 11716 DI 10.1039/c5tc02956b PG 12 WC Materials Science, Multidisciplinary; Physics, Applied SC Materials Science; Physics GA CW2MI UT WOS:000364826000018 ER PT J AU Laming, JM AF Laming, J. Martin TI The FIP and Inverse FIP Effects in Solar and Stellar Coronae SO LIVING REVIEWS IN SOLAR PHYSICS LA English DT Review DE Stars: coronae; Sun: abundances; Sun: chromosphere; Sun: corona; Turbulence; Waves ID X-RAY-SPECTRA; WIND HELIUM ABUNDANCE; UNRESOLVED FINE-STRUCTURES; XMM-NEWTON VIEW; LINE-PROFILE ASYMMETRIES; ACTIVE-REGION OUTFLOWS; MINOR ION ABUNDANCES; ALPHA-CENTAURI-B; LATE-TYPE STARS; NON-WKB MODELS AB We review our state of knowledge of coronal element abundance anomalies in the Sun and stars. We concentrate on the first ionization potential (FIP) effect observed in the solar corona and slow-speed wind, and in the coronae of solar-like dwarf stars, and the "inverse FIP" effect seen in the corona of stars of later spectral type; specifically M dwarfs. These effects relate to the enhancement or depletion, respectively, in coronal abundance with respect to photospheric values of elements with FIP below about 10 eV. They are interpreted in terms of the ponderomotive force due to the propagation and/or reflection of magnetohydrodynamic waves in the chromosphere. This acts on chromospheric ions, but not neutrals, and so can lead to ion-neutral fractionation. A detailed description of the model applied to closed magnetic loops, and to open field regions is given, accounting for the observed difference in solar FIP fractionation between the slow and fast wind. It is shown that such a model can also account for the observed depletion of helium in the solar wind. The helium depletion is sensitive to the chromospheric altitude where ion-neutral separation occurs, and the behavior of the helium abundance in the closed magnetic loop strongly suggests that the waves have a coronal origin. This, and other similar inferences may be expected to have a strong bearing on theories of solar coronal heating. Chromospheric waves originating from below as acoustic waves mode convert, mainly to fast-mode waves, can also give rise to ion-neutral separation. Depending on the geometry of the magnetic field, this can result in FIP or Inverse FIP effects. We argue that such configurations are more likely to occur in later-type stars (known to have stronger field in any case), and that this explains the occurrence of the Inverse FIP effect in M dwarfs. We conclude with a discussion of possible directions for future work. C1 [Laming, J. Martin] Naval Res Lab, Code 7684, Washington, DC 20375 USA. RP Laming, JM (reprint author), Naval Res Lab, Code 7684, Washington, DC 20375 USA. EM laming@nrl.navy.mil FU NASA grants from the Astrophysics Theory Program; Heliophysics Supporting Research Program; basic research funds of the Office of Naval Research FX This work has been supported by NASA grants from the Astrophysics Theory Program, the Heliophysics Supporting Research Program, and by basic research funds of the Office of Naval Research. I am grateful to the editors of Living Reviews in Solar Physics for the initial invitation to write this review, and for their patience with me as various other commitments threatened to derail progress. I acknowledge permission from Deb Baker, Paul Cally, Russ Dahlburg, Jeremy Drake, Justin Kasper, Elena Khomenko, Cara Rakowski, Paola Testa and Brian Wood to reproduce figures from their published work in this review. I am also grateful to Deb Baker, Jeremy Drake, and Brian Wood for their comments on an early draft of this paper, and to John Raymond and other referees for helpful reviews of a more final version. NR 313 TC 18 Z9 18 U1 2 U2 5 PU SPRINGER INTERNATIONAL PUBLISHING AG PI CHAM PA GEWERBESTRASSE 11, CHAM, CH-6330, SWITZERLAND SN 1614-4961 J9 LIVING REV SOL PHYS JI Living Rev. Sol. Phys. PY 2015 VL 12 IS 2 AR 2 DI 10.1007/lrsp-2015-2 PG 76 WC Astronomy & Astrophysics SC Astronomy & Astrophysics GA CW8QE UT WOS:000365263500001 ER PT J AU MacDonald, J McDowell, P Siegel, D De Leon, JR AF MacDonald, Jo McDowell, Perry Siegel, Daniel De Leon, Jesus R. BE Hussain, TS Coleman, SL TI Integrating Games into Learning Environments SO Design and Development of Training Games: Practical Guidelines from a Multidisciplinary Perspective LA English DT Article; Book Chapter ID VIDEO GAMES AB Incorporating gaming into a learning environment requires first learning about the environment. Just as each learner is an individual, with his or her own motivators, learning style, and educational and experiential background, each learning environment has its own characteristics, which will in turn influence how gaming will be accepted, what kinds of games can be used, and what educational purposes those games will serve. In this chapter you will learn about the different parts of a learning system that must be considered when determining how to integrate gaming into a learning environment. C1 [MacDonald, Jo] Gen Dynam Informat Syst, Fairfax, VA 22030 USA. [McDowell, Perry] Naval Postgrad Sch, MOVES Inst, Monterey, CA USA. RP MacDonald, J (reprint author), Gen Dynam Informat Syst, Fairfax, VA 22030 USA. NR 55 TC 0 Z9 0 U1 0 U2 0 PU CAMBRIDGE UNIV PRESS PI CAMBRIDGE PA THE PITT BUILDING, TRUMPINGTON ST, CAMBRIDGE CB2 1RP, CAMBS, ENGLAND BN 978-1-107-05174-4 PY 2015 BP 273 EP 302 PG 30 WC Computer Science, Artificial Intelligence; Education & Educational Research SC Computer Science; Education & Educational Research GA BD5KN UT WOS:000361533200009 ER PT J AU Hacioglu, I Michael, TS Ozdemir, S AF Hacioglu, Ilhan Michael, T. S. Ozdemir, Serhat TI SQUARE ROOTS OF DOUBLY REGULAR TOURNAMENT MATRICES SO ELECTRONIC JOURNAL OF LINEAR ALGEBRA LA English DT Article DE Tournament matrix; Matrix square root; Doubly regular tournament AB Fletcher asked whether there is a (0, 1)-matrix of order greater than 3 whose square is a regular tournament matrix. We give a negative answer for a special class of regular tournament matrices: T (0, 1)-matrix of order greater than 3 whose square is a doubly regular tournament matrix. C1 [Hacioglu, Ilhan; Ozdemir, Serhat] Canakkale Onsekiz Mart Univ, Dept Math, TR-17100 Canakkale, Turkey. [Michael, T. S.] US Naval Acad, Dept Math, Annapolis, MD 21402 USA. RP Hacioglu, I (reprint author), Canakkale Onsekiz Mart Univ, Dept Math, TR-17100 Canakkale, Turkey. EM hacioglu@comu.edu.tr; tsm@usna.edu; serhat.ozdemir@iskur.gov.tr NR 7 TC 0 Z9 0 U1 0 U2 0 PU INT LINEAR ALGEBRA SOC PI PENSACOLA PA C/O JAMES WEAVER DEPT MATH & STATISTICS, UNIV WEST FLORIDA, 11000 UNIV PARKWAY, PENSACOLA, FLORIDA 32514-5751 USA SN 1537-9582 EI 1081-3810 J9 ELECTRON J LINEAR AL JI Electron. J. Linear Algebra PY 2015 VL 28 BP 79 EP 82 PG 4 WC Mathematics SC Mathematics GA CW2JM UT WOS:000364818100007 ER PT J AU Regnier, E Simon, J Nussbaum, DA Whitney, LK AF Regnier, Eva Simon, Jay Nussbaum, Daniel A. Whitney, Laura K. TI The fuel multiplier in multi-stage supply chains SO JOURNAL OF DEFENSE MODELING AND SIMULATION-APPLICATIONS METHODOLOGY TECHNOLOGY-JDMS LA English DT Article DE Fully burdened cost; supply chain; fuel; energy; cost estimation AB Fuel requirements on the battlefield impose direct costs associated with the resources necessary to transport the fuel and protect logistics assets, in addition to indirect energy security costs. Estimating the enterprise-wide demand for fuel associated with fuel consumption on the battlefield is a challenging, but necessary, step to making good decisions. This paper presents a modeling framework for estimating the enterprise-wide fuel requirements associated with a multistage fuel supply chain, demonstrating a multiplicative increase in fuel demand with additional stages, and examining the fuel impact of protecting the supply chain. C1 [Regnier, Eva; Simon, Jay; Nussbaum, Daniel A.; Whitney, Laura K.] Naval Postgrad Sch, Def Resources Management Inst, Monterey, CA 93943 USA. RP Regnier, E (reprint author), Naval Postgrad Sch, Def Resources Management Inst, 1 Univ Circle, Monterey, CA 93943 USA. EM eregnier@nps.edu OI Simon, Jay/0000-0003-3377-0987 NR 23 TC 2 Z9 2 U1 1 U2 1 PU SAGE PUBLICATIONS INC PI THOUSAND OAKS PA 2455 TELLER RD, THOUSAND OAKS, CA 91320 USA SN 1548-5129 EI 1557-380X J9 J DEF MODEL SIMUL-AP JI J. Def. Model. Simul.-Appl. Methodol. Technol.-JDMS PD JAN PY 2015 VL 12 IS 1 SI SI BP 5 EP 17 DI 10.1177/1548512913515362 PG 13 WC Engineering, Multidisciplinary SC Engineering GA CV7YR UT WOS:000364493800002 ER PT J AU Chu, PC Miller, SE Hansen, JA AF Chu, Peter C. Miller, Scott E. Hansen, James A. TI Fuel-saving ship route using the Navy's ensemble meteorological and oceanic forecasts SO JOURNAL OF DEFENSE MODELING AND SIMULATION-APPLICATIONS METHODOLOGY TECHNOLOGY-JDMS LA English DT Article DE Navy operational global atmospheric prediction system; WaveWatch III; Navy coastal ocean model; brier score; ensemble prediction; fuel conservation and carbon reduction; fuel consumption; fuel-saving ship routing; smart voyage planning (SVP) decision aid; ensemble SVP modeling; ship tracking and routing system ID ASSIMILATION SYSTEM MODAS; EXPERIMENT SCSMEX DATA AB Fuel conservation and carbon reduction are important issues in current naval operations. Optimal ship route (i.e. minimum fuel consumption) depends on specific ship platform characteristics and near real-time environment such as weather, ocean waves, and ocean currents. The environmental impact of shipping can be measured on different spatial and temporal scales. As a vital component of the smart voyage planning (SVP) decision aid, the US Navy's meteorological and oceanographic (METOC) forecast systems play an important role in optimal ship routing, which enables fuel savings in addition to the aid of heavy weather avoidance. This study assesses the impact of METOC ensemble forecast systems on optimal ship route. Tests of the SVP decision aid tool are also conducted for operational fleet use and concept of operations for the USS Princeton guided missile cruiser (CG)-59 in a sea trial test following the 2012 Rim of the Pacific exercises. C1 [Chu, Peter C.; Miller, Scott E.] Naval Postgrad Sch, Naval Ocean Anal & Predict Lab, Dept Oceanog, Monterey, CA 93943 USA. [Hansen, James A.] Naval Res Lab, Meteorol Applicat Dev Branch, Monterey, CA USA. RP Chu, PC (reprint author), Naval Postgrad Sch, Naval Ocean Anal & Predict Lab, Dept Oceanog, 833 Dyer Rd, Monterey, CA 93943 USA. EM pcchu@nps.edu NR 14 TC 2 Z9 2 U1 0 U2 0 PU SAGE PUBLICATIONS INC PI THOUSAND OAKS PA 2455 TELLER RD, THOUSAND OAKS, CA 91320 USA SN 1548-5129 EI 1557-380X J9 J DEF MODEL SIMUL-AP JI J. Def. Model. Simul.-Appl. Methodol. Technol.-JDMS PD JAN PY 2015 VL 12 IS 1 SI SI BP 41 EP 56 DI 10.1177/1548512913516552 PG 16 WC Engineering, Multidisciplinary SC Engineering GA CV7YR UT WOS:000364493800005 ER PT S AU Armistead, T Armistead, L AF Armistead, Thomas Armistead, Leigh BE Zaaiman, J Leenen, L TI A new Frontier in war: Cyber Warfare in Estonia SO PROCEEDINGS OF THE 10TH INTERNATIONAL CONFERENCE ON CYBER WARFARE AND SECURITY (ICCWS-2015) SE Proceedings of the International Conference on Information Warfare and Security LA English DT Proceedings Paper CT 10th International Conference on Cyber Warfare and Security (ICCWS) CY MAR 24-25, 2015 CL Univ Venda, SOUTH AFRICA SP Council Sci & Ind Res HO Univ Venda DE cyber warfare; Estonia; Russia; Tallinn AB The last three decades have seen the explosion of a new technology unparalleled by any other in history with the rise of cyber capabilities. The mainstreaming of the computer and the advent of the Internet has drastically changed virtually all facets of today's society, including warfare. The undeniable advantages of utilising this new technology has driven a number of countries, corporations, groups and individuals, to adopt and embrace these modern innovations, but has also opened the door to new types of attacks. One of the most dramatic recent examples of this rapid development has occurred in Estonia, which is one of Europe's most wired nations" (Ashmore 2009). In 2007, Estonia fell victim to one of the world's first major cyber-attacks, where their government was forced to address several unforeseen shortcomings in both their technological and legal systems. From this attack, Estonia not only survived but eventually became a world leader in cyber defense. As a result, these attacks have become a case study to shape the progression of cyber propagation, as well as to educate the greater international community about the importance of cyber warfare and its potential ramifications. C1 [Armistead, Thomas] US Naval Acad, Annapolis, MD 21402 USA. [Armistead, Leigh] Edith Cowan Univ, Perth, WA, Australia. RP Armistead, T (reprint author), US Naval Acad, Annapolis, MD 21402 USA. EM m160246@usna.edu; larmistead@ecu.edu.au NR 9 TC 0 Z9 0 U1 3 U2 3 PU ACAD CONFERENCES LTD PI NR READING PA CURTIS FARM, KIDMORE END, NR READING, RG4 9AY, ENGLAND SN 2048-9889 BN 978-1-910309-97-1 J9 PR INT CONF INF WAR PY 2015 BP 10 EP 13 PG 4 WC Computer Science, Theory & Methods SC Computer Science GA BD9FQ UT WOS:000364594500002 ER PT S AU Flemming, D Rowe, N AF Flemming, Daniel Rowe, Neil BE Zaaiman, J Leenen, L TI Cyber Coercion: Cyber Operations Short of Cyberwar SO PROCEEDINGS OF THE 10TH INTERNATIONAL CONFERENCE ON CYBER WARFARE AND SECURITY (ICCWS-2015) SE Proceedings of the International Conference on Information Warfare and Security LA English DT Proceedings Paper CT 10th International Conference on Cyber Warfare and Security (ICCWS) CY MAR 24-25, 2015 CL Univ Venda, SOUTH AFRICA SP Council Sci & Ind Res HO Univ Venda DE coercion; cyber; operations; attacks; nonlethal; compellence AB Countries should find ways to exert strong influence without resorting to excessive violence and warfare. Cyber coercion is a new option, the use of computer networks and software to influence other countries with cyber attacks short of full warfare. It could involve demonstrations of capabilities as a sample of what warfare could entail. An example would be when country A is threatening invasion of another country B, and B disables the computer networking on a single ship of A by using emplaced Trojan horses, to demonstrate that A's entire navy could be similarly disabled. Cyber coercion could enable phased aggression to compel adversaries to the bargaining table and avoid unnecessary escalation while expending fewer resources than alternative methods. Cyber coercion could permit flexible tailoring of an operation with varying levels of force, and could include features of attributability and reversibility. This paper surveys the potential for cyber coercion. It considers the possible goals, the possible targets, and the possible methods from a strategic point of view. Additional issues discussed are actors involved, possible ineffectiveness, reversibility, and attribution. Risks discussed are that of the attacker ignoring the coercion, the attacker escalating the conflict, stalemates, and spread of the conflict to civilian targets. Despite these risks, we argue there is a role for cyber coercion in the strategic arsenal of militaries. C1 [Flemming, Daniel; Rowe, Neil] US Naval Postgrad Sch, Monterey, CA 93943 USA. RP Flemming, D (reprint author), US Naval Postgrad Sch, Monterey, CA 93943 USA. EM daniel.r.flemming@gmail.com; ncrowe@nps.edu NR 26 TC 1 Z9 1 U1 0 U2 4 PU ACAD CONFERENCES LTD PI NR READING PA CURTIS FARM, KIDMORE END, NR READING, RG4 9AY, ENGLAND SN 2048-9889 BN 978-1-910309-97-1 J9 PR INT CONF INF WAR PY 2015 BP 95 EP 101 PG 7 WC Computer Science, Theory & Methods SC Computer Science GA BD9FQ UT WOS:000364594500013 ER PT J AU Tiruveedhula, VVNPB Methuku, KR Deschamps, JR Cook, JM AF Tiruveedhula, V. V. N. Phani Babu Methuku, Kashi Reddy Deschamps, Jeffrey R. Cook, James M. TI Synthesis of aza and carbocyclic beta-carbolines for the treatment of alcohol abuse. Regiospecific solution to the problem of 3,6-disubstituted beta- and aza-beta-carboline specificity SO ORGANIC & BIOMOLECULAR CHEMISTRY LA English DT Article ID PALLADIUM-CATALYZED AMINATIONS; CROSS-COUPLING REACTIONS; MATERNAL SEPARATION; GABA(A) RECEPTORS; VENTRAL PALLIDUM; ARYL IODIDES; MICROWAVE IRRADIATION; DIAZEPAM WITHDRAWAL; ORGANIC-SYNTHESIS; RAT-BRAIN AB A novel two step protocol was developed to gain regiospecific access to 3-substituted beta- and aza-beta-carbolines, 3-PBC (1), 3-ISOPBC (2), beta CCt (3), 6-aza-3-PBC (4) and 6-aza-3-ISOPBC (5). These beta-carbolines (1-3) are potential clinical agents to reduce alcohol self-administration, especially 3-ISOPBC center dot HCl (2 center dot HCl) which appears to be a potent anti-alcohol agent active against binge drinking in a rat model of maternally deprived (MD) rats. The method consists of two consecutive palladium-catalyzed reactions: a Buchwald-Hartwig amination followed by an intramolecular Heck-type cyclization in high yield. C1 [Tiruveedhula, V. V. N. Phani Babu; Methuku, Kashi Reddy; Cook, James M.] Univ Wisconsin, Dept Chem & Biochem, Milwaukee, WI 53201 USA. [Deschamps, Jeffrey R.] Naval Res Lab, Ctr Biomol Sci & Engn, Washington, DC 20375 USA. RP Cook, JM (reprint author), Univ Wisconsin, Dept Chem & Biochem, Milwaukee, WI 53201 USA. EM capncook@uwm.edu FU NIMH [1R01MH096463-01A1]; NIAAA [7R01AA-016179]; NINDS [5R01NS076517-03]; NIDA [ADA 12003]; Naval Research Laboratory (NRL); Bradley-Herzfeld Foundation; Milwaukee Institute for Drug Discovery FX We thank the NIMH (1R01MH096463-01A1), NIAAA (7R01AA-016179) and NINDS (5R01NS076517-03) for generous financial support. The X-ray crystallographic work was supported by NIDA through Interagency Agreement #ADA 12003 with the Naval Research Laboratory (NRL). We also wish to acknowledge the Bradley-Herzfeld Foundation and The Milwaukee Institute for Drug Discovery for support. NR 53 TC 2 Z9 2 U1 1 U2 2 PU ROYAL SOC CHEMISTRY PI CAMBRIDGE PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND SN 1477-0520 EI 1477-0539 J9 ORG BIOMOL CHEM JI Org. Biomol. Chem. PY 2015 VL 13 IS 43 BP 10705 EP 10715 DI 10.1039/c5ob01572c PG 11 WC Chemistry, Organic SC Chemistry GA CV2GF UT WOS:000364074300015 ER PT J AU Brown, CW Oh, E Hastman, DA Walper, SA Susumu, K Stewart, MH Deschamps, JR Medintz, IL AF Brown, C. W., III Oh, E. Hastman, D. A., Jr. Walper, S. A. Susumu, K. Stewart, M. H. Deschamps, J. R. Medintz, I. L. TI Kinetic enhancement of the diffusion-limited enzyme beta-galactosidase when displayed with quantum dots SO RSC ADVANCES LA English DT Article ID POLYION COMPLEX MICELLES; CHARGED BLOCK-COPOLYMERS; ALKALINE-PHOSPHATASE; PROTEOLYTIC ACTIVITY; BIOCONJUGATION; CORE; NANOPARTICLES; ACCELERATION; MOLECULES; BEHAVIOR AB The phenomenon of enzyme catalytic enhancement when displayed on a nanoparticle surface has now become well established in the literature and has significant implications across many disciplines that rely on enzymes. It is thus essential to determine which enzymes best utilize this effect. Of particular interest is beta-galactosidase, one of the best characterized enzymes which typically operates optimally at diffusion-limited rates. We couple this large tetrameric enzyme to semiconductor quantum dots (QDs) by utilizing a configuration opposite to that used previously with the QDs now displayed on the enzyme. Following physicochemical characterization of the resulting hybrid conjugates, we compared its activity to that of free enzyme. We find that, despite anticipating a seemingly hard rate ceiling, the presence of QDs around the enzyme surface results in a three-fold enhancement of catalytic rate (k(cat)), suggesting a super-diffusional rate of substrate accessibility. Mechanisms that may account for these results are discussed along with potential applications for utilizing this type of enhanced catalytic configuration. C1 [Brown, C. W., III; Hastman, D. A., Jr.; Walper, S. A.; Deschamps, J. R.; Medintz, I. L.] US Naval Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 USA. [Oh, E.; Susumu, K.; Stewart, M. H.] US Naval Res Lab, Div Opt Sci, Washington, DC 20375 USA. [Brown, C. W., III] George Mason Univ, Coll Sci, Fairfax, VA 22030 USA. [Oh, E.; Susumu, K.] Sotera Def Solut Inc, Columbia, MD 21046 USA. RP Medintz, IL (reprint author), US Naval Res Lab, Ctr Bio Mol Sci & Engn, Code 6900, Washington, DC 20375 USA. EM Igor.medintz@nrl.navy.mil NR 44 TC 5 Z9 5 U1 0 U2 7 PU ROYAL SOC CHEMISTRY PI CAMBRIDGE PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND SN 2046-2069 J9 RSC ADV JI RSC Adv. PY 2015 VL 5 IS 113 BP 93089 EP 93094 DI 10.1039/c5ra21187e PG 6 WC Chemistry, Multidisciplinary SC Chemistry GA CV2CW UT WOS:000364065500033 ER PT S AU Cranch, GA Grun, J Weaver, J Gran, JK Groethe, MA Compton, S Fournier, K Dunlop, B AF Cranch, G. A. Gruen, J. Weaver, J. Gran, J. K. Groethe, M. A. Compton, S. Fournier, K. Dunlop, B. BE Kalinowski, HJ Fabris, JL Bock, WJ TI High Power Laser and Explosive Driven Shock Wave Characterization in Solids Using Fiber Optic Probes SO 24TH INTERNATIONAL CONFERENCE ON OPTICAL FIBRE SENSORS SE Proceedings of SPIE LA English DT Proceedings Paper CT 24th International Conference on Optical Fibre Sensors (OFS) CY SEP 28-OCT 02, 2015 CL Curitiba, BRAZIL SP Soc Brasileira Micro Ondas & Optoeletronica, Univ Tecnologica Fed Parana, Grupo Pesquisa Dispositivos Fotonicos & Aplicacoes, Conselho Nacl Desenvolvimento Cientifico & Tecnologico, Coordenacao Aperfeicoamento Pessoal Nivel Super, OZ Opt, FBGS, Innovat Econ, Innovat Photon Technol, NUFERN, UN Educ Sci & Cultural Org, SPIE, SICE, EIC, IEEJ, AP, Programa Pos Graduacao Engn Electrica & Informatica Ind, Curitiba Regiao & Litoral Convent & Visitors Bur DE Times Roman; image area; acronyms; references ID ULTRASONIC HYDROPHONE; PRESSURE AB Shock wave transmission and propagation in solid media is studied using fiber optic pressure and velocity probes. Shock waves are generated in two experiments using a high power laser facility as well as conventional explosives. Shock wave properties including peak overpressure, mass velocity, shock duration, impulse, arrival time and shock velocity are characterized using fiber tip interferometric displacement sensors and Fabry-Perot pressure sensors. Measurements are conducted in polymethyl methacrylate and limestone. The probes recorded shock pressures up to 0.1 GPa (1 kbar). Measurements from the fiber optic sensors are shown to be in close agreement with measurements from an electrical sensor based on a Dremin loop. C1 [Cranch, G. A.; Gruen, J.; Weaver, J.] Naval Res Lab, Washington, DC 20375 USA. [Gran, J. K.; Groethe, M. A.] SRI Int, Menlo Pk, CA 94025 USA. [Compton, S.; Fournier, K.; Dunlop, B.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RP Cranch, GA (reprint author), Naval Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA. NR 10 TC 0 Z9 0 U1 2 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 978-1-62841-839-2 J9 PROC SPIE PY 2015 VL 9634 AR 96341T DI 10.1117/12.2193907 PG 4 WC Engineering, Electrical & Electronic; Optics; Physics, Applied SC Engineering; Optics; Physics GA BD7MD UT WOS:000363281800048 ER PT J AU Everton, SF AF Everton, Sean F. TI What Are The Odds? The Jesus Seminar's Quest for Objectivity SO JOURNAL FOR THE STUDY OF THE HISTORICAL JESUS LA English DT Article DE quest for the historical Jesus; Jesus seminar; apocalyptic; criteria of authenticity; rules of evidence AB In 1985 a group of New Testament scholars, who came to be known as the Jesus Seminar, gathered to vote on the authenticity of the sayings of Jesus. Although the Seminar argued that it followed objective rules of evidence, critics have claimed that it did not. This paper investigates these claims using statistical models to evaluate the Seminar's own voting records. It finds that although the Seminar's Fellows did follow widely accepted criteria, they were also influenced by their own assumptions about who Jesus was. In particular, they appear to have assumed that Jesus was a non-apocalyptic enfant terrible who spoke in aphorisms and parables and occasionally uttered things that later embarrassed the early Church. C1 Naval Postgrad Sch, Def Anal Dept, Monterey, CA 93943 USA. RP Everton, SF (reprint author), Naval Postgrad Sch, Def Anal Dept, Monterey, CA 93943 USA. EM sfeverto@nps.edu NR 23 TC 0 Z9 0 U1 0 U2 0 PU BRILL ACADEMIC PUBLISHERS PI LEIDEN PA PLANTIJNSTRAAT 2, P O BOX 9000, 2300 PA LEIDEN, NETHERLANDS SN 1476-8690 EI 1745-5197 J9 J STUDY HIST JESUS JI J. Study Hist. Jesus PY 2015 VL 13 IS 1 BP 24 EP 42 DI 10.1163/17455197-01301002 PG 19 WC Religion SC Religion GA CU7JP UT WOS:000363712800003 ER PT J AU Roberts, A Craig, A Maslowski, W Osinski, R DuVivier, A Hughes, M Nijssen, B Cassano, J Brunke, M AF Roberts, Andrew Craig, Anthony Maslowski, Wieslaw Osinski, Robert DuVivier, Alice Hughes, Mimi Nijssen, Bart Cassano, John Brunke, Michael TI Simulating transient ice-ocean Ekman transport in the Regional Arctic System Model and Community Earth System Model SO ANNALS OF GLACIOLOGY LA English DT Article DE atmosphere/ice/ocean interactions; climate change; polar and subpolar oceans; sea-ice dynamics; sea-ice modelling ID SEA-ICE; THICKNESS DISTRIBUTION; INERTIAL OSCILLATIONS; WAVELET ANALYSIS; WRF MODEL; PACK ICE; DEFORMATION; VARIABILITY; RESOLUTION; GREENLAND AB This work evaluates the fidelity of the polar marine Ekman layer in the Regional Arctic System Model (RASM) and Community Earth System Model (CESM) using sea-ice inertial oscillations as a proxy for ice-ocean Ekman transport. A case study is presented that demonstrates that RASM replicates inertial oscillations in close agreement with motion derived using the GPS. This result is obtained from a year-long case study pre-dating the recent decline in perennial Arctic sea ice, using RASM with sub-hourly coupling between the atmosphere, sea-ice and ocean components. To place this work in context, the RASM coupling method is applied to CESM, increasing the frequency of oceanic flux exchange from once per day in the standard CESM configuration, to every 30 min. For a single year simulation, this change causes a considerable increase in the median inertial ice speed across large areas of the Southern Ocean and parts of the Arctic sea-ice zone. The result suggests that processes associated with the passage of storms over sea ice (e.g. oceanic mixing, sea-ice deformation and surface energy exchange) are underestimated in Earth System Models that do not resolve inertial frequencies in their marine coupling cycle. C1 [Roberts, Andrew; Craig, Anthony; Maslowski, Wieslaw] Naval Postgrad Sch, Monterey, CA 93943 USA. [Osinski, Robert] Polish Inst Oceanol, Sopot, Poland. [DuVivier, Alice; Hughes, Mimi; Cassano, John] Univ Colorado, Boulder, CO 80309 USA. [Nijssen, Bart] Univ Washington, Seattle, WA 98195 USA. [Brunke, Michael] Univ Arizona, Tucson, AZ USA. RP Roberts, A (reprint author), Naval Postgrad Sch, Monterey, CA 93943 USA. EM afrobert@nps.edu RI Nijssen, Bart/B-1013-2012; Hughes, Mimi/C-3710-2009 OI Nijssen, Bart/0000-0002-4062-0322; Hughes, Mimi/0000-0002-4554-9289 FU US Department of Energy; US National Science Foundation [1108542]; Office of Naval Research; US Department of Defense High Performance Computing Modernization Program FX This work was supported by the US Department of Energy, the US National Science Foundation (grant No. 1108542) and the Office of Naval Research. Computing resources were provided via a Challenge Grant from the US Department of Defense High Performance Computing Modernization Program. We are grateful for the advice and data supplied by William Hibler III and Petra Heil, and for the suggestions of Xubin Zeng on sea-ice roughness length formulations. Additional observationally based data used in this study were supplied by the US National Snow and Ice Data Center, and the European Center for Medium-Range Weather Forecasts. We thank the US National Center for Atmospheric Research for making the CESM code base and pre-industrial initial conditions available for this study. Finally, we thank our two reviewers for helpful comments toward improving this paper. NR 81 TC 6 Z9 6 U1 2 U2 16 PU INT GLACIOL SOC PI CAMBRIDGE PA LENSFIELD RD, CAMBRIDGE CB2 1ER, ENGLAND SN 0260-3055 EI 1727-5644 J9 ANN GLACIOL JI Ann. Glaciol. PY 2015 VL 56 IS 69 BP 211 EP 228 DI 10.3189/2015AoG69A760 PN 1 PG 18 WC Geography, Physical; Geosciences, Multidisciplinary SC Physical Geography; Geology GA CT8RE UT WOS:000363082900025 ER PT B AU Gregg, HS AF Gregg, Heather S. BE Johns, AL TI REAGAN AND TERRORISM SO COMPANION TO RONALD REAGAN SE Wiley Blackwell Presidential Companions LA English DT Article; Book Chapter C1 Naval Postgrad Sch, Dept Def Anal, Monterey, CA 93943 USA. RP Gregg, HS (reprint author), Naval Postgrad Sch, Dept Def Anal, Monterey, CA 93943 USA. NR 37 TC 0 Z9 0 U1 0 U2 0 PU WILEY-BLACKWELL PI MALDEN PA COMMERCE PLACE, 350 MAIN STREET, MALDEN 02148, MA USA BN 978-1-118-60777-0; 978-0-470-65504-7 J9 WILEY BLACKW PRESIDE PY 2015 BP 359 EP 376 D2 10.1002/9781118607770 PG 18 WC Political Science SC Government & Law GA BD5EN UT WOS:000361363400021 ER PT J AU Giles, ID Depriest, JC Deschamps, JR AF Giles, Ian D. Depriest, Jeffrey C. Deschamps, Jeffrey R. TI Effect of substitution and the counterion on the structural and spectroscopic properties of Cu-II complexes of methylated pyrazoles SO JOURNAL OF COORDINATION CHEMISTRY LA English DT Article DE Coordination chemistry; Pyrazole; Copper(II); Electronic spectroscopy; Single-crystal X-ray diffraction ID CRYSTAL-STRUCTURE; COORDINATION COMPOUNDS; COPPER(II) COMPLEXES; METAL-COMPLEXES; LIGANDS; 3(5)-METHYLPYRAZOLE; IMIDAZOLES; SPECTRA; NITRATES AB The coordination chemistry of pyrazole and three of its methyl derivatives with the chloride and nitrate salts of copper(II) under strictly controlled reaction conditions is systematically explored to gain a better understanding of the effect of counterion coordination strength and ligand identity on the structure and electronic absorption spectra of their resulting complexes. Despite the initial 2 : 1 ligand to metal ratio in water, copper(II) nitrate forms exclusively 4 : 1 ligand to metal complexes while copper(II) chloride forms a 4 : 1 ligand to metal complex only with pyrazole, with the methyl derivatives forming 2 : 1 ligand to metal complexes, as determined by single-crystal X-ray diffraction (XRD). This is attributed to a combination of ligand sterics and stronger coordination of chloride relative to nitrate. Electronic absorption spectroscopy in both water and methanol reveals a surprisingly strong effect of the pyrazole methyl position on the Cu-II d-d transition, with 4-methylpyrazole producing a higher energy d-d transition relative to the other ligands studied. In addition, the number of methyl groups plays a determining role in the energy of the pz pi -> Cu-II d(xy) LMCT band, lowering the transition energy as more methyl groups are added. C1 [Giles, Ian D.; Deschamps, Jeffrey R.] Naval Res Lab, Ctr Biomol Sci & Engn, Washington, DC USA. [Depriest, Jeffrey C.] Def Threat Reduct Agcy, Counter Weap Mass Destruct, Ft Belvoir, VA USA. RP Deschamps, JR (reprint author), Naval Res Lab, Ctr Biomol Sci & Engn, Washington, DC USA. EM deschamps@nrl.navy.mil RI Giles, Ian/F-3645-2011 OI Giles, Ian/0000-0002-9421-5365 FU ASEE Postdoctoral Fellowship grant, NRL Contract [N00173-13-2-C001] FX Funding for this research was provided by an ASEE Postdoctoral Fellowship grant, NRL Contract [N00173-13-2-C001]. NR 30 TC 0 Z9 0 U1 0 U2 1 PU TAYLOR & FRANCIS LTD PI ABINGDON PA 2-4 PARK SQUARE, MILTON PARK, ABINGDON OR14 4RN, OXON, ENGLAND SN 0095-8972 EI 1029-0389 J9 J COORD CHEM JI J. Coord. Chem. PY 2015 VL 68 IS 20 BP 3611 EP 3635 DI 10.1080/00958972.2015.1077952 PG 25 WC Chemistry, Inorganic & Nuclear SC Chemistry GA CT3BT UT WOS:000362681700006 ER PT B AU Little, BJ Lee, JS AF Little, Brenda J. Lee, Jason S. BE Revie, RW TI MICROBIOLOGICALLY INFLUENCED CORROSION SO OIL AND GAS PIPELINES: INTEGRITY AND SAFETY HANDBOOK LA English DT Article; Book Chapter ID SULFATE-REDUCING BACTERIA; TEMPERATURE PETROLEUM RESERVOIRS; NATURAL-ENVIRONMENT; OIL; DIVERSITY; WATERS; BIODEGRADATION; MICROORGANISMS; HYDROCARBONS; PIPELINES C1 [Little, Brenda J.; Lee, Jason S.] Naval Res Lab, Stennis Space Ctr, MS 39529 USA. RP Little, BJ (reprint author), Naval Res Lab, Stennis Space Ctr, MS 39529 USA. NR 91 TC 0 Z9 0 U1 2 U2 2 PU JOHN WILEY & SONS INC PI HOBOKEN PA 111 RIVER ST, HOBOKEN, NJ 07030 USA BN 978-1-119-01921-3; 978-1-118-21671-2 PY 2015 BP 387 EP 398 PG 12 WC Engineering, Petroleum SC Engineering GA BD3SB UT WOS:000360112300028 ER PT B AU Harris, CM Laughlin, RM AF Harris, Christopher M. Laughlin, Robert M. BE Haggerty, CJ Laughlin, RM TI Benign Cysts of the Jaws SO ATLAS OF OPERATIVE ORAL AND MAXILLOFACIAL SURGERY LA English DT Article; Book Chapter C1 [Harris, Christopher M.] Naval Med Ctr Portsmouth, Dept Oral & Maxillofacial Surg, Head & Neck Oncol Reconstruct, Portsmouth, VA 23708 USA. [Laughlin, Robert M.] Naval Med Ctr San Diego, Dept Oral & Maxillofacial Surg, Oral & Maxillofacial Surg Residency Program, San Diego, CA USA. RP Harris, CM (reprint author), Naval Med Ctr Portsmouth, Dept Oral & Maxillofacial Surg, Head & Neck Oncol Reconstruct, Portsmouth, VA 23708 USA. NR 0 TC 0 Z9 0 U1 1 U2 1 PU JOHN WILEY & SONS INC PI HOBOKEN PA 111 RIVER ST, HOBOKEN, NJ 07030 USA BN 978-1-118-44234-0; 978-1-118-99372-9 PY 2015 BP 401 EP 405 D2 10.1002/9781118993729 PG 5 WC Dentistry, Oral Surgery & Medicine SC Dentistry, Oral Surgery & Medicine GA BD4BU UT WOS:000360452300045 ER PT B AU Harris, CM Laughlin, RM AF Harris, Christopher M. Laughlin, Robert M. BE Haggerty, CJ Laughlin, RM TI Benign Tumors of the Jaws SO ATLAS OF OPERATIVE ORAL AND MAXILLOFACIAL SURGERY LA English DT Article; Book Chapter C1 [Harris, Christopher M.; Laughlin, Robert M.] Naval Med Ctr Portsmouth, Dept Oral & Maxillofacial Surg, Oral & Maxillofacial Surg Residency Program, Portsmouth, VA 23708 USA. [Harris, Christopher M.] Naval Med Ctr Portsmouth, Dept Oral & Maxillofacial Surg, Head & Neck Oncol Reconstruct, Portsmouth, VA USA. [Laughlin, Robert M.] Naval Med Ctr San Diego, Dept Oral & Maxillofacial Surg, Oral & Maxillofacial Surg Residency Program, San Diego, CA USA. RP Harris, CM (reprint author), Naval Med Ctr Portsmouth, Dept Oral & Maxillofacial Surg, Oral & Maxillofacial Surg Residency Program, Portsmouth, VA 23708 USA. NR 3 TC 0 Z9 0 U1 0 U2 0 PU JOHN WILEY & SONS INC PI HOBOKEN PA 111 RIVER ST, HOBOKEN, NJ 07030 USA BN 978-1-118-44234-0; 978-1-118-99372-9 PY 2015 BP 406 EP 415 D2 10.1002/9781118993729 PG 10 WC Dentistry, Oral Surgery & Medicine SC Dentistry, Oral Surgery & Medicine GA BD4BU UT WOS:000360452300046 ER PT B AU Harris, CM Mitchell, AO AF Harris, Christopher M. Mitchell, Allen O. BE Haggerty, CJ Laughlin, RM TI Malignant Tumors of the Jaws SO ATLAS OF OPERATIVE ORAL AND MAXILLOFACIAL SURGERY LA English DT Article; Book Chapter C1 [Harris, Christopher M.] Naval Med Ctr Portsmouth, Dept Oral & Maxillofacial Surg, Oral & Maxillofacial Surg Residency Program, Portsmouth, VA 23708 USA. [Harris, Christopher M.] Naval Med Ctr Portsmouth, Dept Oral & Maxillofacial Surg, Head & Neck Oncol Reconstruct, Portsmouth, VA USA. [Mitchell, Allen O.] Naval Med Ctr Portsmouth, Otolaryngol Head & Neck Surg, Portsmouth, VA USA. RP Harris, CM (reprint author), Naval Med Ctr Portsmouth, Dept Oral & Maxillofacial Surg, Oral & Maxillofacial Surg Residency Program, Portsmouth, VA 23708 USA. NR 3 TC 0 Z9 0 U1 0 U2 0 PU JOHN WILEY & SONS INC PI HOBOKEN PA 111 RIVER ST, HOBOKEN, NJ 07030 USA BN 978-1-118-44234-0; 978-1-118-99372-9 PY 2015 BP 416 EP 423 D2 10.1002/9781118993729 PG 8 WC Dentistry, Oral Surgery & Medicine SC Dentistry, Oral Surgery & Medicine GA BD4BU UT WOS:000360452300047 ER PT B AU Carson, M AF Carson, Michael BE Haggerty, CJ Laughlin, RM TI Anterior Iliac Crest Bone Graft SO ATLAS OF OPERATIVE ORAL AND MAXILLOFACIAL SURGERY LA English DT Article; Book Chapter C1 Naval Med Ctr Portsmouth, Dept Oral & Maxillofacial Surg, Portsmouth, VA 23708 USA. RP Carson, M (reprint author), Naval Med Ctr Portsmouth, Dept Oral & Maxillofacial Surg, Portsmouth, VA 23708 USA. NR 4 TC 0 Z9 0 U1 0 U2 0 PU JOHN WILEY & SONS INC PI HOBOKEN PA 111 RIVER ST, HOBOKEN, NJ 07030 USA BN 978-1-118-44234-0; 978-1-118-99372-9 PY 2015 BP 475 EP 479 D2 10.1002/9781118993729 PG 5 WC Dentistry, Oral Surgery & Medicine SC Dentistry, Oral Surgery & Medicine GA BD4BU UT WOS:000360452300054 ER PT B AU Harris, CM Mitchell, AO Laughlin, RM AF Harris, Christopher M. Mitchell, Allen O. Laughlin, Robert M. BE Haggerty, CJ Laughlin, RM TI Microvascular Principles SO ATLAS OF OPERATIVE ORAL AND MAXILLOFACIAL SURGERY LA English DT Article; Book Chapter C1 [Harris, Christopher M.] Naval Med Ctr Portsmouth, Dept Oral & Maxillofacial Surg, Portsmouth, VA 23708 USA. [Mitchell, Allen O.] Naval Med Ctr Portsmouth, Otolaryngol Head & Neck Surg, Portsmouth, VA USA. [Laughlin, Robert M.] Naval Med Ctr San Diego, Dept Oral & Maxillofacial Surg, San Diego, CA USA. RP Harris, CM (reprint author), Naval Med Ctr Portsmouth, Dept Oral & Maxillofacial Surg, Portsmouth, VA 23708 USA. NR 2 TC 0 Z9 0 U1 0 U2 0 PU JOHN WILEY & SONS INC PI HOBOKEN PA 111 RIVER ST, HOBOKEN, NJ 07030 USA BN 978-1-118-44234-0; 978-1-118-99372-9 PY 2015 BP 499 EP 504 D2 10.1002/9781118993729 PG 6 WC Dentistry, Oral Surgery & Medicine SC Dentistry, Oral Surgery & Medicine GA BD4BU UT WOS:000360452300059 ER PT B AU Laughlin, RM Harris, CM AF Laughlin, Robert M. Harris, Christopher M. BE Haggerty, CJ Laughlin, RM TI Free Vascularized Fibula and Graft Harvest SO ATLAS OF OPERATIVE ORAL AND MAXILLOFACIAL SURGERY LA English DT Article; Book Chapter C1 [Laughlin, Robert M.] Naval Med Ctr San Diego, Dept Oral & Maxillofacial Surg, San Diego, CA 92134 USA. [Harris, Christopher M.] Naval Med Ctr Portsmouth, Dept Oral & Maxillofacial Surg, Portsmouth, VA USA. RP Laughlin, RM (reprint author), Naval Med Ctr San Diego, Dept Oral & Maxillofacial Surg, San Diego, CA 92134 USA. NR 4 TC 0 Z9 0 U1 0 U2 0 PU JOHN WILEY & SONS INC PI HOBOKEN PA 111 RIVER ST, HOBOKEN, NJ 07030 USA BN 978-1-118-44234-0; 978-1-118-99372-9 PY 2015 BP 505 EP 510 D2 10.1002/9781118993729 PG 6 WC Dentistry, Oral Surgery & Medicine SC Dentistry, Oral Surgery & Medicine GA BD4BU UT WOS:000360452300060 ER PT B AU Harris, CM Blanchaert, RH AF Harris, Christopher M. Blanchaert, Remy H. BE Haggerty, CJ Laughlin, RM TI Radial Forearm Free Flap SO ATLAS OF OPERATIVE ORAL AND MAXILLOFACIAL SURGERY LA English DT Article; Book Chapter C1 [Harris, Christopher M.] Naval Med Ctr Portsmouth, Dept Oral & Maxillofacial Surg, Portsmouth, VA 23708 USA. [Blanchaert, Remy H.] Oral & Maxillofacial Surg Associates, Wichita, KS USA. RP Harris, CM (reprint author), Naval Med Ctr Portsmouth, Dept Oral & Maxillofacial Surg, Portsmouth, VA 23708 USA. NR 4 TC 0 Z9 0 U1 0 U2 0 PU JOHN WILEY & SONS INC PI HOBOKEN PA 111 RIVER ST, HOBOKEN, NJ 07030 USA BN 978-1-118-44234-0; 978-1-118-99372-9 PY 2015 BP 511 EP 514 D2 10.1002/9781118993729 PG 4 WC Dentistry, Oral Surgery & Medicine SC Dentistry, Oral Surgery & Medicine GA BD4BU UT WOS:000360452300061 ER PT S AU Beverly, R Luckie, M Mosley, L Claffy, K AF Beverly, Robert Luckie, Matthew Mosley, Lorenza Claffy, Kc BE Mirkovic, J Liu, Y TI Measuring and Characterizing IPv6 Router Availability SO PASSIVE AND ACTIVE MEASUREMENT (PAM 2015) SE Lecture Notes in Computer Science LA English DT Proceedings Paper CT 16th International Conference on Passive and Active Measurement (PAM) CY MAR 19-20, 2015 CL New York, NY ID INTERNET AB We consider the problem of inferring IPv6 router uninterrupted system availability, or uptime, from a remote vantage point without privileged access. Uptime inference is important to broader efforts to measure and characterize the availability of critical infrastructure, provides insight into network operations, and has subtle security implications. Our approach utilizes active probes to periodically elicit IPv6 fragment identifiers from IPv6 router interfaces, and analyzes the resulting identifier time series for reboots. We demonstrate the approach's potential by characterizing 21,539 distinct IPv6 router interfaces over a five-month period. We find evidence of clustered reboot events, popular maintenance windows, and correlation with globally visible control plane data. Our results, validated by five ASes, provide initial insight into the current state of IPv6 router availability. C1 [Beverly, Robert; Mosley, Lorenza] Naval Postgrad Sch, Monterey, CA 93943 USA. [Luckie, Matthew; Claffy, Kc] UC, CAIDA, San Diego, CA USA. RP Beverly, R (reprint author), Naval Postgrad Sch, Monterey, CA 93943 USA. EM rbeverly@nps.edu; mjl@caida.org; ldmosley@cmand.org; kc@caida.org NR 24 TC 2 Z9 2 U1 0 U2 0 PU SPRINGER-VERLAG BERLIN PI BERLIN PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY SN 0302-9743 BN 978-3-319-15509-8; 978-3-319-15508-1 J9 LECT NOTES COMPUT SC PY 2015 VL 8995 BP 123 EP 135 DI 10.1007/978-3-319-15509-8_10 PG 13 WC Computer Science, Hardware & Architecture; Computer Science, Information Systems; Computer Science, Theory & Methods SC Computer Science GA BD6BC UT WOS:000361982200010 ER PT S AU Beverly, R Berger, A AF Beverly, Robert Berger, Arthur BE Mirkovic, J Liu, Y TI Server Siblings: Identifying Shared IPv4/IPv6 Infrastructure Via Active Fingerprinting SO PASSIVE AND ACTIVE MEASUREMENT (PAM 2015) SE Lecture Notes in Computer Science LA English DT Proceedings Paper CT 16th International Conference on Passive and Active Measurement (PAM) CY MAR 19-20, 2015 CL New York, NY AB We present, validate, and apply an active measurement technique that ascertains whether candidate IPv4 and IPv6 server addresses are "siblings," i.e., assigned to the same physical machine. In contrast to prior efforts limited to passive monitoring, opportunistic measurements, or end-client populations, we propose an active methodology that generalizes to all TCP-reachable devices, including servers. Our method extends prior device fingerprinting techniques to improve their feasibility in modern environments, and uses them to support measurement-based detection of sibling interfaces. We validate our technique against a diverse set of 61 web servers with known sibling addresses and find it to be over 97% accurate with 99% precision. Finally, we apply the technique to characterize the top similar to 6,400 Alexa IPv6-capable web domains, and discover that a DNS name in common does not imply that the corresponding IPv4 and IPv6 addresses are on the same machine, network, or even autonomous system. Understanding sibling and non-sibling relationships gives insight not only into IPv6 deployment and evolution, but also helps characterize the potential for correlated failures and susceptibility to certain attacks. C1 [Beverly, Robert] Naval Postgrad Sch, Monterey, CA 93943 USA. [Berger, Arthur] MIT CSAIL Akamai, Cambridge, MA USA. RP Beverly, R (reprint author), Naval Postgrad Sch, Monterey, CA 93943 USA. EM rbeverly@nps.edu; awberger@csail.mit.edu NR 15 TC 3 Z9 3 U1 0 U2 0 PU SPRINGER-VERLAG BERLIN PI BERLIN PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY SN 0302-9743 BN 978-3-319-15509-8; 978-3-319-15508-1 J9 LECT NOTES COMPUT SC PY 2015 VL 8995 BP 149 EP 161 DI 10.1007/978-3-319-15509-8_12 PG 13 WC Computer Science, Hardware & Architecture; Computer Science, Information Systems; Computer Science, Theory & Methods SC Computer Science GA BD6BC UT WOS:000361982200012 ER PT J AU Born, PH Dumm, RE Eger, RJ AF Born, Patricia H. Dumm, Randy E. Eger, Robert J., III TI Developing a Framework for Financial Achievability of Department of Transportation Research and Development Projects SO TRANSPORTATION RESEARCH RECORD LA English DT Article AB A financial analysis framework was developed to allow departments of transportation to assess research projects better. The framework recognizes that the research process contains multiple stages of decision making, and the framework details the information needed at each stage. The framework is described as it applies to each step in the research process: identifying potential research projects, evaluating research proposals, monitoring ongoing research projects, and evaluating final research reports. The framework also considers the decision to implement the research and its potential effects on employees. The application of the framework is illustrated with several Florida Department of Transportation research projects that involve the development of a multipurpose survey vehicle for evaluation of Florida roadways. This illustration allows for an explanation of each step in the framework with actual data from research reports and other internal or external sources. Although the framework is flexible and can be adapted for use in evaluating different types of projects, some judgment will be required when the specific inputs to the model are considered. Successful implementation of the framework will require focused data collection with emphasis on identifying the potential net benefits of research projects. C1 [Born, Patricia H.; Dumm, Randy E.] Florida State Univ, Coll Business, Tallahassee, FL 32306 USA. [Eger, Robert J., III] Naval Postgrad Sch, Grad Sch Business & Publ Policy, Monterey, CA 93943 USA. RP Eger, RJ (reprint author), Naval Postgrad Sch, Grad Sch Business & Publ Policy, 555 Dyer Rd,214 Ingersoll Hall, Monterey, CA 93943 USA. EM rjeger@nps.edu NR 4 TC 0 Z9 0 U1 0 U2 0 PU NATL ACAD SCIENCES PI WASHINGTON PA 2101 CONSTITUTION AVE NW, WASHINGTON, DC 20418 USA SN 0361-1981 EI 2169-4052 J9 TRANSPORT RES REC JI Transp. Res. Record PY 2015 IS 2480 BP 11 EP 19 DI 10.3141/2480-02 PG 9 WC Engineering, Civil; Transportation; Transportation Science & Technology SC Engineering; Transportation GA CS5WY UT WOS:000362150200003 ER PT J AU Rodriguez-Seda, EJ AF Rodriguez-Seda, Erick J. TI Passive Transparency Compensation for Bilateral Teleoperators with Communication Delays SO JOURNAL OF ROBOTICS LA English DT Article ID TIME-DELAY; CONTROL SCHEMES; STABILITY; SYSTEMS; MASTER AB One of the main challenges in the realization of time-delayed bilateral teleoperators is the stable adaptation of transparency when the remote environmental dynamics are time-varying. In this paper, we propose a bilateral control strategy that passively adjusts the transparency of the system when the slave robot transitions between two different environments. The proposed controller exploits the effect that the wave impedance (a design parameter of the passivity-based scattering transformation) has on transparency without comprising closed-loop stability, regardless of time-varying communication delays. To properly adjust transparency, the control scheme smoothly switches the wave impedance parameter between a low value, ideal for free motion, and a sufficiently large value, suited for hard-contact tasks. We show that, by adopting this strategy, the transmitted impedance to the operator approximates more closely the environmental impedance value. Furthermore, we theoretically prove master-slave position coordination and force tracking under different scenarios. Simulation results illustrate the effectiveness of the proposed control strategy. C1 US Naval Acad, Dept Weap & Syst Engn, Annapolis, MD 21402 USA. RP Rodriguez-Seda, EJ (reprint author), US Naval Acad, Dept Weap & Syst Engn, Annapolis, MD 21402 USA. EM rodrigue@usna.edu NR 32 TC 0 Z9 0 U1 2 U2 4 PU HINDAWI PUBLISHING CORP PI NEW YORK PA 315 MADISON AVE 3RD FLR, STE 3070, NEW YORK, NY 10017 USA SN 1687-9600 EI 1687-9619 J9 J ROBOT JI J. Robot. PY 2015 AR 861425 DI 10.1155/2015/861425 PG 13 WC Robotics SC Robotics GA CS3IO UT WOS:000361966200001 ER PT S AU Nguyen, TD Gondree, M Khosalim, J Irvine, C AF Nguyen, Thuy D. Gondree, Mark Khosalim, Jean Irvine, Cynthia BE Piessens, F Caballero, J Bielova, N TI Re-thinking Kernelized MLS Database Architectures in the Context of Cloud-Scale Data Stores SO ENGINEERING SECURE SOFTWARE AND SYSTEMS (ESSOS 2015) SE Lecture Notes in Computer Science LA English DT Proceedings Paper CT 7th International Symposium on Engineering Secure Software and Systems (ESSoS) CY MAR 04-06, 2015 CL Milan, ITALY SP ACM SIGSAC, ACM SIGSOFT, Politecnico Milano, NESSoS FP7 Project, Network Excellence Engn Secure Future Internet Software Serv & Syst, PRIN Project TENACE, Protecting Natl Crit Infrastructures Cyber Threats ID SYSTEM AB We re-evaluate the kernelized, multilevel secure (MLS) relational database design in the context of cloud-scale distributed data stores. The transactional properties and global integrity properties for schema-less, cloud-scale data stores are significantly relaxed in comparison to relational databases. This is a new and interesting setting for mandatory access control policies, and has been unexplored in prior research. We describe the design and implementation of a prototype MLS column-store following the kernelized design pattern. Our prototype is the first cloud-scale data store using an architectural approach for high-assurance; it enforces a lattice-based mandatory information flow policy, without any additional trusted components. We highlight several promising avenues for practical systems research in secure, distributed architectures implementing mandatory policies using Java-based untrusted subjects. C1 [Nguyen, Thuy D.; Gondree, Mark; Khosalim, Jean; Irvine, Cynthia] Naval Postgrad Sch, Dept Comp Sci, Monterey, CA 93943 USA. RP Nguyen, TD (reprint author), Naval Postgrad Sch, Dept Comp Sci, Monterey, CA 93943 USA. EM tdnguyen@nps.edu; mgondree@nps.edu; jkhosali@nps.edu; irvine@nps.edu NR 40 TC 0 Z9 0 U1 0 U2 1 PU SPRINGER-VERLAG BERLIN PI BERLIN PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY SN 0302-9743 BN 978-3-319-15618-7; 978-3-319-15617-0 J9 LECT NOTES COMPUT SC PY 2015 VL 8978 BP 86 EP 101 PG 16 WC Computer Science, Hardware & Architecture; Computer Science, Software Engineering; Computer Science, Theory & Methods SC Computer Science GA BD5PL UT WOS:000361700700007 ER PT B AU Maule, RW AF Maule, R. William BE Rainey, LB Tolk, A TI Model Methodology for a Department of Defense Architecture Design SO MODELING AND SIMULATION SUPPORT FOR SYSTEM OF SYSTEMS ENGINEERING APPLICATIONS LA English DT Article; Book Chapter C1 Naval Postgrad Sch, Monterey, CA 93943 USA. RP Maule, RW (reprint author), Naval Postgrad Sch, Monterey, CA 93943 USA. NR 18 TC 0 Z9 0 U1 0 U2 0 PU BLACKWELL SCIENCE PUBL PI OXFORD PA OSNEY MEAD, OXFORD OX2 0EL, ENGLAND BN 978-1-118-50175-7; 978-1-118-46031-3 PY 2015 BP 145 EP 183 PG 39 WC Engineering, Industrial; Operations Research & Management Science; Mathematics, Interdisciplinary Applications SC Engineering; Operations Research & Management Science; Mathematics GA BD3SC UT WOS:000360112500008 ER PT B AU Whitcomb, CA Auguston, M Giammarco, K AF Whitcomb, Clifford A. Auguston, Mikhail Giammarco, Kristin BE Rainey, LB Tolk, A TI Composition of Behavior Models for Systems Architecture SO MODELING AND SIMULATION SUPPORT FOR SYSTEM OF SYSTEMS ENGINEERING APPLICATIONS LA English DT Article; Book Chapter C1 [Whitcomb, Clifford A.; Giammarco, Kristin] Naval Postgrad Sch, Dept Syst Engn, Monterey, CA 93943 USA. [Auguston, Mikhail] Naval Postgrad Sch, Dept Comp Sci, Monterey, CA USA. RP Whitcomb, CA (reprint author), Naval Postgrad Sch, Dept Syst Engn, Monterey, CA 93943 USA. NR 50 TC 0 Z9 0 U1 0 U2 0 PU BLACKWELL SCIENCE PUBL PI OXFORD PA OSNEY MEAD, OXFORD OX2 0EL, ENGLAND BN 978-1-118-50175-7; 978-1-118-46031-3 PY 2015 BP 361 EP 391 PG 31 WC Engineering, Industrial; Operations Research & Management Science; Mathematics, Interdisciplinary Applications SC Engineering; Operations Research & Management Science; Mathematics GA BD3SC UT WOS:000360112500015 ER PT J AU Bruneau, TC AF Bruneau, Thomas C. TI The US experience in contracting out security and lessons for other countries SO REVISTA BRASILEIRA DE POLITICA INTERNACIONAL LA English DT Article DE Iraq; privatization; security; USA AB The United States has gone further than any country in the "privatization of security". Other countries may find the economic or financial logic in the use of contractors persuasive. The US experience with contracting out security, particularly in Iraq, was problematic, and can serve as a cautionary tale in order that other countries might learn how to avoid the pitfalls. C1 Naval Postgrad Sch, Dept Natl Secur Affairs, Monterey, CA 93943 USA. RP Bruneau, TC (reprint author), Naval Postgrad Sch, Dept Natl Secur Affairs, Monterey, CA 93943 USA. EM tbruneau@nps.edu NR 22 TC 0 Z9 0 U1 0 U2 3 PU INST BRASILEIRO RELACOES INT PI BRASILIA DF PA CAIXA POSTAL 4400, BRASILIA DF, 70919-970, BRAZIL SN 0034-7329 J9 REV BRAS POLIT INT JI Rev. Bras. Polit. Int. PY 2015 VL 58 IS 1 BP 230 EP 248 DI 10.1590/0034-7329201500112 PG 19 WC International Relations; Political Science SC International Relations; Government & Law GA CR7VR UT WOS:000361560400012 ER PT J AU Reed, L Ladwig, M Dolinsky, B Zelig, C Napolitano, P AF Reed, Luckey Ladwig, Martin Dolinsky, Brad Zelig, Craig Napolitano, Peter TI Maternal hyperglycemia exacerbates vasoconstriction in fetal-placental arteries in an ex-vivo placenta perfusion model: a possible mechanism for perinatal mortality in pregnancy complicated by diabetes mellitus SO AMERICAN JOURNAL OF OBSTETRICS AND GYNECOLOGY LA English DT Meeting Abstract CT 35th Annual Scientific Pregnancy Meeting of the Society-for-Maternal-Fetal-Medicine (SMFM) CY FEB 02-07, 2015 CL San Diego, CA SP Soc Maternal Fetal Med C1 [Reed, Luckey; Dolinsky, Brad; Napolitano, Peter] Madigan Army Med Ctr, OB GYN Maternal Fetal Med, Tacoma, WA 98431 USA. [Ladwig, Martin] Weed Army Community Hosp, OB GYN, Ft Irwin, CA USA. [Zelig, Craig] Naval Med Ctr Portsmouth, OB GYN Maternal Fetal Med, Portsmouth, VA USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU MOSBY-ELSEVIER PI NEW YORK PA 360 PARK AVENUE SOUTH, NEW YORK, NY 10010-1710 USA SN 0002-9378 EI 1097-6868 J9 AM J OBSTET GYNECOL JI Am. J. Obstet. Gynecol. PD JAN PY 2015 VL 212 IS 1 SU S MA 745 BP S363 EP S363 PG 1 WC Obstetrics & Gynecology SC Obstetrics & Gynecology GA CR2FG UT WOS:000361140900738 ER PT J AU Aiken, DC Ramsey, S Mayo, T Bellemare, J Lambrakos, SG Peak, J AF Aiken, Daniel C. Ramsey, Scott Mayo, Troy Bellemare, James Lambrakos, Samuel G. Peak, Joseph TI Inverse analysis of near infrared transmission spectra for triarylamine, tetraaryldiamine, nickel dithiolene and indolium-iodide dyes SO JOURNAL OF NEAR INFRARED SPECTROSCOPY LA English DT Article DE inverse analysis; Kramers-Kronig relations; Lorentzian function; permittivity function; susceptibility; absorption coefficient; transmissivity; reflectivity; least-squares optimisation AB An inverse analysis of transmission spectra for triarylamine, tetraaryldiamine, nickel dithiolene and indolium iodide dyes in solution is presented. This analysis employs a parametric model of transmission through a sample of finite thickness, where the permittivity function is represented parametrically by a linear combination of Lorentzian functions. The results of this analysis provide estimates of permittivity functions, which can be adopted as input data to other types of models, such as those for prediction of transmission and reflectivity spectra for composites containing mixtures of dyes and other materials. C1 [Aiken, Daniel C.; Ramsey, Scott; Mayo, Troy; Bellemare, James; Peak, Joseph] Naval Res Lab, Signature Technol Off, Washington, DC 20375 USA. [Lambrakos, Samuel G.] Naval Res Lab, Ctr Computat Mat, Mat Sci & Technol Div, Washington, DC 20375 USA. RP Aiken, DC (reprint author), Naval Res Lab, Signature Technol Off, 4555 Overlook Ave Southwest, Washington, DC 20375 USA. EM daniel.aiken@nrl.navy.mil FU Program Management Office, Special Operations Forces, Survival Support & Equipment Systems (PM-SOF SSES) FX This work was supported by the Program Management Office, Special Operations Forces, Survival Support & Equipment Systems (PM-SOF SSES). We extend our appreciation to Drs Miro Muzik and Oleg Ponomarev of Fabricolor Holding International, LLC, for their helpful insights in this effort. NR 19 TC 0 Z9 0 U1 1 U2 6 PU N I R PUBLICATIONS PI CHICHESTER PA 6 CHARLTON MILL, CHARLTON, CHICHESTER PO18 0HY, WEST SUSSEX, ENGLAND SN 0967-0335 EI 1751-6552 J9 J NEAR INFRARED SPEC JI J. Near Infrared Spectrosc. PY 2015 VL 23 IS 3 BP 123 EP 132 DI 10.1255/j.nirs.1159 PG 10 WC Chemistry, Applied; Spectroscopy SC Chemistry; Spectroscopy GA CR5ZJ UT WOS:000361422600001 ER PT S AU MacCalman, A Kwak, H McDonald, M Upton, S AF MacCalman, Alex Kwak, Hyangshim McDonald, Mary Upton, Stephen BE Wade, J Cloutier, R TI Capturing experimental design insights in support of the model-based system engineering approach SO 2015 CONFERENCE ON SYSTEMS ENGINEERING RESEARCH SE Procedia Computer Science LA English DT Proceedings Paper CT Conference on Systems Engineering Research CY MAR 17-19, 2015 CL Hoboken, NJ DE Model Based Systems Engineering; Design of Experiments; Engineered Resilient System; SysML AB Model-Based Systems Engineering (MBSE) continues to mature into a popular approach as systems become more complex. Integrating MBSE architectural diagrams with external simulations that model a variety of different domains allows designers to perform sophisticated engineering design and analysis. To better understand how these external models support design decisions, we can leverage the statistical methods of design of experiments to identify insights into a complex system design problem. These insights include identifying the most important design parameters, the nature of their behaviour, their synergies between them, their diminishing or increasing rates of change, and thresholds that achieve a desired level of effectiveness. The purpose of this paper is to propose a MBSE methodology that captures the insights identified during an experimental design study within the integrated system model while applying the MBSE approach. (C) 2015 Published by Elsevier B.V. C1 [MacCalman, Alex; Kwak, Hyangshim] US Mil Acad, West Point, NY USA. [McDonald, Mary; Upton, Stephen] Naval Postgrad Sch, Monterey, CA USA. RP MacCalman, A (reprint author), US Mil Acad, 752 Mahan Hall, West Point, NY USA. EM alexander.maccalman@usma.edu NR 24 TC 2 Z9 2 U1 0 U2 1 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 1877-0509 J9 PROCEDIA COMPUT SCI PY 2015 VL 44 BP 315 EP 324 DI 10.1016/j.procs.2015.03.030 PG 10 WC Computer Science, Information Systems; Computer Science, Software Engineering; Computer Science, Theory & Methods SC Computer Science GA BD4JE UT WOS:000360836300032 ER PT S AU Auguston, M Giammarco, K Baldwin, WC Crump, J Farah-Stapleton, M AF Auguston, Mikhail Giammarco, Kristin Baldwin, W. Clifton Crump, Ji'on Farah-Stapleton, Monica BE Wade, J Cloutier, R TI Modeling and Verifying Business Processes with Monterey Phoenix SO 2015 CONFERENCE ON SYSTEMS ENGINEERING RESEARCH SE Procedia Computer Science LA English DT Proceedings Paper CT Conference on Systems Engineering Research CY MAR 17-19, 2015 CL Hoboken, NJ DE Monterey Phoenix; behavior modeling; business process modeling; architecture; formal methods; scenario generation AB Monterey Phoenix (MP) has been designed as a framework for system and software architecture modeling and verification with focus on modeling the system's and the environment's behaviors. With the development of more case studies, advantages in using MP for business process modeling and analysis applications are beginning to emerge. Models of business processes aim to capture high level operational activities and decision points of an organization, describing processes ranging from product lifecycle to government operations. Businesses and governments seeking to make improvements to their processes may model them for the purpose of seeking improvements in schedule and task execution, product quality, risk reduction, and lifecycle / operating costs. MP enables activities to be modeled as events with two basic relations: precedence and inclusion, making it a candidate modeling language for business process analysis. By offering high level abstractions for interaction behavior modeling and separating component behaviors from the component interactions, MP supports a multidimensional picture of concurrent behaviors, with overlapping threads of process phases and participating actors, including environment behaviors. MP models are executable and may be used to generate an exhaustive set of possible business process scenarios up to a given scope limit. (C) 2015 Published by Elsevier B.V. C1 [Auguston, Mikhail; Giammarco, Kristin; Farah-Stapleton, Monica] Naval Postgrad Sch, Monterey, CA USA. [Baldwin, W. Clifton; Crump, Ji'on] FAA, Pomona, NJ USA. RP Baldwin, WC (reprint author), FAA, Pomona, NJ USA. EM Clifton.Baldwin@faa.gov NR 21 TC 1 Z9 1 U1 0 U2 0 PU ELSEVIER SCIENCE BV PI AMSTERDAM PA SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS SN 1877-0509 J9 PROCEDIA COMPUT SCI PY 2015 VL 44 BP 345 EP 353 DI 10.1016/j.procs.2015.03.055 PG 9 WC Computer Science, Information Systems; Computer Science, Software Engineering; Computer Science, Theory & Methods SC Computer Science GA BD4JE UT WOS:000360836300035 ER PT J AU Fu, HY Scales, WA Bernhardt, PA Briczinski, SJ Kosch, MJ Senior, A Rietveld, MT Yeoman, TK Ruohoniemi, JM AF Fu, H. Y. Scales, W. A. Bernhardt, P. A. Briczinski, S. J. Kosch, M. J. Senior, A. Rietveld, M. T. Yeoman, T. K. Ruohoniemi, J. M. TI Stimulated Brillouin scattering during electron gyro-harmonic heating at EISCAT SO ANNALES GEOPHYSICAE LA English DT Article DE Ionosphere; active experiments; particle acceleration; plasma waves and instabilities ID ELECTROMAGNETIC EMISSION-SPECTRUM; ION GYROHARMONIC STRUCTURES; IONOSPHERIC PLASMA; PUMP FREQUENCIES; DOWNSHIFTED PEAK; HF; RADIATION; INSTABILITY; FEATURES; CUTLASS AB Observations of secondary radiation, stimulated electromagnetic emission (SEE), produced during ionospheric modification experiments using ground-based, highpower, high-frequency (HF) radio waves are considered. The High Frequency Active Auroral Research Program (HAARP) facility is capable of generating narrowband SEE in the form of stimulated Brillouin scatter (SBS) and stimulated ion Bernstein scatter (SIBS) in the SEE spectrum. Such narrowband SEE spectral lines have not been reported using the European Incoherent Scatter (EISCAT) heater facility before. This work reports the first EISCAT results of narrowband SEE spectra and compares them to SEE previously observed at HAARP during electron gyro-harmonic heating. An analysis of experimental SEE data shows observations of emission lines within 100 Hz of the pump frequency, interpreted as SBS, during the 2012 July EISCAT campaign. Experimental results indicate that SBS strengthens as the pump frequency approaches the third electron gyro-harmonic. Also, for different heater antenna beam angles, the CUTLASS radar backscatter induced by HF radio pumping is suppressed near electron gyro-harmonics, whereas electron temperature enhancement weakens as measured by EISCAT/UHF radar. The main features of these new narrowband EISCAT observations are generally consistent with previous SBS measurements at HAARP. C1 [Fu, H. Y.] Fudan Univ, Key Lab Informat Sci Elect Waves MoE, Shanghai 200433, Peoples R China. [Fu, H. Y.] Fudan Univ, Sch Informat Sci & Technol, Shanghai 200433, Peoples R China. [Scales, W. A.; Ruohoniemi, J. M.] Virginia Tech, Bradley Dept Elect & Comp Engn, Blacksburg, VA USA. [Bernhardt, P. A.; Briczinski, S. J.] Naval Res Lab, Div Plasma Phys, Washington, DC USA. [Kosch, M. J.; Senior, A.] Univ Lancaster, Dept Phys, Lancaster, England. [Rietveld, M. T.] EISCAT Sci Assoc, Ramfjordbotn, Norway. [Yeoman, T. K.] Univ Leicester, Dept Phys & Astron, Leicester LE1 7RH, Leics, England. [Kosch, M. J.] South African Natl Space Agcy, Hermanus, South Africa. RP Fu, HY (reprint author), Fudan Univ, Key Lab Informat Sci Elect Waves MoE, Shanghai 200433, Peoples R China. EM fuhaiyang@gmail.com RI Haiyang, Fu/P-8007-2015; Yeoman, Timothy/L-9105-2014; OI Yeoman, Timothy/0000-0002-8434-4825; Kosch, Michael Jurgen/0000-0003-2846-3915 FU National Science Foundation; NRL 6.1 Base programme; National Science Foundation of China (NSFC) [41404122] FX The authors would like to acknowledge Inge-mar Haggstrom for access to EISCAT UHF radar data analysis and the staff at the EISCAT facility for technical support. The work at Virginia Tech was supported in part by the National Science Foundation. The work at the Naval Research Laboratory was sponsored by the NRL 6.1 Base programme. The work at Fudan University was supported in part by National Science Foundation of China (NSFC no. 41404122). The authors highly appreciate the constructive comments from the referees. NR 33 TC 4 Z9 4 U1 0 U2 2 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 2015 VL 33 IS 8 BP 983 EP 990 DI 10.5194/angeo-33-983-2015 PG 8 WC Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences SC Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences GA CQ5NG UT WOS:000360651100004 ER PT J AU Lainer, M Kampfer, N Tschanz, B Nedoluha, GE Ka, S Oh, JJ AF Lainer, M. Kaempfer, N. Tschanz, B. Nedoluha, G. E. Ka, S. Oh, J. J. TI Trajectory mapping of middle atmospheric water vapor by a mini network of NDACC instruments SO ATMOSPHERIC CHEMISTRY AND PHYSICS LA English DT Article ID RADIOMETER MIAWARA; VALIDATION; MESOSPHERE; SATELLITE; TRANSPORT; OZONE; RESOLUTION; MIDLATITUDES; CALIBRATION; PROFILES AB The important task to observe the global coverage of middle atmospheric trace gases like water vapor or ozone usually is accomplished by satellites. Climate and atmospheric studies rely upon the knowledge of trace gas distributions throughout the stratosphere and mesosphere. Many of these gases are currently measured from satellites, but it is not clear whether this capability will be maintained in the future. This could lead to a significant knowledge gap of the state of the atmosphere. We explore the possibilities of mapping middle atmospheric water vapor in the Northern Hemisphere by using Lagrangian trajectory calculations and water vapor profile data from a small network of five ground-based microwave radiometers. Four of them are operated within the frame of NDACC (Network for the Detection of Atmospheric Composition Change). Keeping in mind that the instruments are based on different hardware and calibration setups, a height-dependent bias of the retrieved water vapor profiles has to be expected among the microwave radiometers. In order to correct and harmonize the different data sets, the Microwave Limb Sounder (MLS) on the Aura satellite is used to serve as a kind of traveling standard. A domain-averaging TM (trajectory mapping) method is applied which simplifies the subsequent validation of the quality of the trajectory-mapped water vapor distribution towards direct satellite observations. Trajectories are calculated forwards and backwards in time for up to 10 days using 6 hourly meteorological wind analysis fields. Overall, a total of four case studies of trajectory mapping in different meteorological regimes are discussed. One of the case studies takes place during a major sudden stratospheric warming (SSW) accompanied by the polar vortex breakdown; a second takes place after the reformation of stable circulation system. TM cases close to the fall equinox and June solstice event from the year 2012 complete the study, showing the high potential of a network of ground-based remote sensing instruments to synthesize hemispheric maps of water vapor. C1 [Lainer, M.; Kaempfer, N.; Tschanz, B.] Univ Bern, Inst Appl Phys, CH-3012 Bern, Switzerland. [Nedoluha, G. E.] US Navy, Res Lab, Remote Sensing Div, Washington, DC 20375 USA. [Ka, S.; Oh, J. J.] Sookmyung Womens Univ, Seoul 140742, South Korea. RP Lainer, M (reprint author), Univ Bern, Inst Appl Phys, Sidlerstr 5, CH-3012 Bern, Switzerland. EM martin.lainer@iap.unibe.ch OI Oh, Jung Jin/0000-0002-7031-1416; Lainer, Martin/0000-0002-1129-3406 FU Swiss National Science Foundation [200020-146388]; MeteoSwiss; National Research Foundation of Korea (NRF) - Korean Government (MSIP) [2013070600] FX This work has been supported by the Swiss National Science Foundation under grant number 200020-146388 and by MeteoSwiss in the frame of the GAW project "Fundamental GAW parameters measured by microwave radiometry". J. J. Oh acknowledges the support by the National Research Foundation of Korea (NRF) grant funded by the Korean Government (MSIP) (No. 2013070600). Further on we thank ECMWF for the access to the operational analysis data. We appreciate NASA for access to EOS Aura MLS data and NDACC for making water vapor profiles from ground-based microwave radiometers available for the public. Finally, we thank the two reviewers for helpful comments to improve the paper. NR 48 TC 0 Z9 0 U1 1 U2 4 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 2015 VL 15 IS 16 BP 9711 EP 9730 DI 10.5194/acp-15-9711-2015 PG 20 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA CQ5LT UT WOS:000360646500035 ER PT J AU Sund, JB Wolter, SD Parker, CB Natishan, PM Glass, JT AF Sund, James B. Wolter, Scott D. Parker, Charles B. Natishan, Paul M. Glass, Jeffrey T. TI Diamond for Biosensing: Electrochemical Detection of NOx Species with Thiol-Amine Functionalized Diamond SO JOURNAL OF THE ELECTROCHEMICAL SOCIETY LA English DT Article ID NITRIC-OXIDE MICROSENSOR; MODIFIED CARBON-FIBER; ELECTROCATALYTIC OXIDATION; ELECTRODE; FILMS; POLYMER; SENSORS; BRAIN AB Diamond has long been of interest as a biomaterial due to its expected biocompatibility and chemical stability. Progress in surface functionalization of diamond and diamond electrochemistry has extended this interest to use as a biosensor platform. The sensitivity and selectivity of the diamond surface can be enhanced by covalently attaching carbon-based biochemicals. In this communication, an amine-thiol molecule was attached to a boron-doped diamond (BDD) surface to produce an enhanced ability to detect NO species. In the case of hydrogen terminated BDD, it was found that NO (aqueous) oxidation was insufficiently distinct to electrochemically detect NO. However, the amine-thiol functionalized BDD surface provided a distinct oxidation peak from 65 nanomolar to 236 nanomolar concentrations. Multiple cyclic voltammagrams with amine-thiol functionalized BDD electrode in (HPLC-quality) purified water indicated that the covalently attached surface molecules resisted decomposition during both anodic and cathodic polarization. (C) The Author(s) 2015. Published by ECS. All rights reserved. C1 [Sund, James B.; Parker, Charles B.; Glass, Jeffrey T.] Duke Univ, Dept Elect & Comp Engn, Durham, NC 27708 USA. [Wolter, Scott D.] Elon Univ, Dept Phys, Elon, NC 27244 USA. [Natishan, Paul M.] Naval Res Lab, Washington, DC 20375 USA. RP Sund, JB (reprint author), Duke Univ, Dept Elect & Comp Engn, Durham, NC 27708 USA. EM cbparker@duke.edu FU NASA [NNL05AA14A] FX A significant amount of this work was funded in part by Dr. Seun Kahng, NASA grant No. NNL05AA14A; Boron doped diamond samples were provided by Taka Tachibana, Kobe Steel, Ltd., Electronics Research Laboratory. 1-5-5 Takatsukadai, Nishi-ku, Kobe 651-2271 Japan. We also thank Corey P. Causey and his doctoral advisor Professor Eric J. Toone in the Departments of Chemistry and Biochemistry, Duke University, Durham, NC USA for their direct involvement in extending the amine surface tether to a terminal Thiol. We are grateful to Dr. Michael Garcia, Nicki Thompson, and Prof. Joseph Bonaventura for help in developing the NO calibration protocol. Finally, we thank Edmond F. Bowden of North Carolina State University for use of the electrochemical cell. NR 38 TC 1 Z9 1 U1 7 U2 17 PU ELECTROCHEMICAL SOC INC PI PENNINGTON PA 65 SOUTH MAIN STREET, PENNINGTON, NJ 08534 USA SN 0013-4651 EI 1945-7111 J9 J ELECTROCHEM SOC JI J. Electrochem. Soc. PY 2015 VL 162 IS 8 BP B225 EP B229 DI 10.1149/2.0691508jes PG 5 WC Electrochemistry; Materials Science, Coatings & Films SC Electrochemistry; Materials Science GA CR2WS UT WOS:000361192200038 ER PT J AU Aubry, R Dey, S Mestreau, E Karamete, K Gayman, D AF Aubry, R. Dey, S. Mestreau, E. Karamete, K. Gayman, D. TI AN ENTROPY SATISFYING BOUNDARY LAYER SURFACE MESH GENERATION SO SIAM JOURNAL ON SCIENTIFIC COMPUTING LA English DT Article DE boundary layer mesh generation; surface triangulation; mesh generation; Eikonal equation; generalized Voronoi diagram ID MEDIAL AXIS; VORONOI DIAGRAM; GRID GENERATION; SIMULATIONS; ALGORITHM; POLYGON; OFFSET AB A method is presented to generate surface boundary layers. The novelty of the method consists in a uniform treatment of the concave and convex regions based on offsetting the initial front. In particular, concave situations are enforced to respect the entropy satisfying solution. Local solutions of the offset of edges in the planes and triangles in the three dimensional space are also given, showing the relationship between normal computation, distance extrusion, and the generalized Voronoi diagram. The boundary layer mesh generation is cast as a weak solution of the Eikonal equation computed locally, layer by layer, to mimic the hyperbolic character of the Eikonal equation, augmented by a possibly nonbijective mapping between layers. This provides a theoretical framework to rely on for practical answers such as configurations where the adjacent topologies to a boundary layer may be curved, or at least not aligned with the offset direction, or if the boundary layer mesh must be generated as a mapping between the first and last layer or as a composition of mappings for each layer. Numerous examples illustrate the potential of the proposed solution. C1 [Aubry, R.; Mestreau, E.; Karamete, K.; Gayman, D.] Sotera Def Solut, Mclean, VA 22102 USA. [Dey, S.] Naval Res Lab, Washington, DC 20375 USA. RP Aubry, R (reprint author), Sotera Def Solut, 1501 Farm Credit Dr, Mclean, VA 22102 USA. EM romain.aubry.ctr.fr@nrl.navy.mil; saikat.dey@nrl.navy.mil; eric.mestreau.ctr@nrl.navy.mil; kaan.karamete.ctr@nrl.navy.mil; david.gayman.ctr@nrl.navy.mil FU DOD HPCMP CREATE Program FX This work was partly supported by the DOD HPCMP CREATE Program. Parts of this manuscript have been presented in Aubry et al., Ensuring a smooth transition from semi-structured surface boundary layer mesh to fully unstructured anisotropic surface mesh, 53rd AIAA Aerospace Sciences Meeting and Exhibit, AIAA, Reston, VA, 2015, AIAA-2015-1507. [7]. NR 45 TC 0 Z9 0 U1 0 U2 2 PU SIAM PUBLICATIONS PI PHILADELPHIA PA 3600 UNIV CITY SCIENCE CENTER, PHILADELPHIA, PA 19104-2688 USA SN 1064-8275 EI 1095-7197 J9 SIAM J SCI COMPUT JI SIAM J. Sci. Comput. PY 2015 VL 37 IS 4 BP A1957 EP A1974 DI 10.1137/140963625 PG 18 WC Mathematics, Applied SC Mathematics GA CQ6EU UT WOS:000360698000015 ER PT B AU Pan, MJ Wimmer, S DeGiorgi, V AF Pan, Ming-Jen Wimmer, Stephanie DeGiorgi, Virginia BE Ohji, T Singh, M Mathur, S TI MECHANICAL BEHAVIOR OF GREEN CERAMIC TAPES USED IN A VISCOELASTIC SHAPING PROCESS SO ADVANCED PROCESSING AND MANUFACTURING TECHNOLOGIES FOR NANOSTRUCTURED AND MULTIFUNCTIONAL MATERIALS LA English DT Proceedings Paper CT 38th International Conference on Advanced Ceramics and Composites (ICACC) CY JAN 26-31, 2014 CL Daytona Beach, FL SP Amer Ceram Soc, Engn Ceram Div, Amer Ceram Soc, Nucl & Environm Technol Div ID COMPOSITES AB This work quantifies several green ceramic tapes' stress-strain behavior as a function of applied pressure and temperature. The knowledge gained will be used to fabricate complex ceramic components with micro-channels using a "fugitive phase" approach, which involves laminating paper patterns and green ceramic tape to form the desired geometry, removing the paper phase during subsequent burnout, and sintering the ceramic phase. The ceramic tape consists of zirconia-mullite powder, polyvinyl butyral (PVB) binder, benzyl butyl phthalate plasticizer, and fish oil dispersant. Both tensile and compressive tests are conducted at several temperatures. The tension samples are dog-bone shaped cutouts from the ceramic tape and the compression samples are short cylinders made by slip casting. Several different tapes are prepared: baseline, 10% extra binder, 10% extra plasticizer, 10% extra of both binder and plasticizer, and a different grade of PVB binder. This allows for the impact of the organic content and processing temperature on the stress-strain behavior to be evaluated. Finally, the experimental results are used as material property input in the computational simulation of the lamination process. Examples of the numerical simulation will be given. C1 [Pan, Ming-Jen; Wimmer, Stephanie; DeGiorgi, Virginia] US Naval Res Lab, Multifunct Mat Branch, Washington, DC 20375 USA. RP Pan, MJ (reprint author), US Naval Res Lab, Multifunct Mat Branch, Washington, DC 20375 USA. NR 8 TC 0 Z9 0 U1 1 U2 1 PU AMER CERAMIC SOC PI WESTERVILLE PA 735 CERAMIC PLACE, WESTERVILLE, OH 43081-8720 USA BN 978-1-119-04035-4; 978-1-119-04026-2 PY 2015 BP 81 EP 88 PG 8 WC Materials Science, Ceramics; Materials Science, Multidisciplinary SC Materials Science GA BD4EQ UT WOS:000360562600009 ER PT J AU Posey, PG Metzger, EJ Wallcraft, AJ Hebert, DA Allard, RA Smedstad, OM Phelps, MW Fetterer, F Stewart, JS Meier, WN Helfrich, SR AF Posey, P. G. Metzger, E. J. Wallcraft, A. J. Hebert, D. A. Allard, R. A. Smedstad, O. M. Phelps, M. W. Fetterer, F. Stewart, J. S. Meier, W. N. Helfrich, S. R. TI Improving Arctic sea ice edge forecasts by assimilating high horizontal resolution sea ice concentration data into the US Navy's ice forecast systems SO CRYOSPHERE LA English DT Article AB This study presents the improvement in ice edge error within the US Navy's operational sea ice forecast systems gained by assimilating high horizontal resolution satellite-derived ice concentration products. Since the late 1980's, the ice forecast systems have assimilated near real-time sea ice concentration derived from the Defense Meteorological Satellite Program (DMSP) Special Sensor Microwave/Imager (SSMI and then SSMIS). The resolution of the satellite-derived product was approximately the same as the previous operational ice forecast system (25 km). As the sea ice forecast model resolution increased over time, the need for higher horizontal resolution observational data grew. In 2013, a new Navy sea ice forecast system (Arctic Cap Nowcast/Forecast System ACNFS) went into operations with a horizontal resolution of similar to 3.5 km at the North Pole. A method of blending ice concentration observations from the Advanced Microwave Scanning Radiometer (AMSR2) along with a sea ice mask produced by the National Ice Center (NIC) has been developed, resulting in an ice concentration product with very high spatial resolution. In this study, ACNFS was initialized with this newly developed high resolution blended ice concentration product. The daily ice edge locations from model hindcast simulations were compared against independent observed ice edge locations. ACNFS initialized using the high resolution blended ice concentration data product decreased predicted ice edge location error compared to the operational system that only assimilated SSMIS data. A second evaluation assimilating the new blended sea ice concentration product into the pre-operational Navy Global Ocean Forecast System 3.1 also showed a substantial improvement in ice edge location over a system using the SSMIS sea ice concentration product alone. This paper describes the technique used to create the blended sea ice concentration product and the significant improvements in ice edge forecasting in both of the Navy's sea ice forecasting systems. C1 [Posey, P. G.; Metzger, E. J.; Wallcraft, A. J.; Hebert, D. A.; Allard, R. A.] Naval Res Lab, Stennis Space Ctr, MS 39529 USA. [Smedstad, O. M.] Vencore Serv & Solut Inc, Stennis Space Ctr, MS USA. [Phelps, M. W.] Jacobs Technol Inc, Stennis Space Ctr, MS USA. [Fetterer, F.] Natl Snow & Ice Data Ctr, Boulder, CO USA. [Stewart, J. S.] J Scott Stewart Exploratory Thinking, Longmont, CO USA. [Meier, W. N.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA. [Helfrich, S. R.] US Natl Ice Ctr, Suitland, MD USA. RP Posey, PG (reprint author), Naval Res Lab, Stennis Space Ctr, MS 39529 USA. EM pamela.posey@nrlssc.navy.mil OI Allard, Richard/0000-0002-6066-2722; Meier, Walter/0000-0003-2857-0550 NR 22 TC 3 Z9 3 U1 1 U2 8 PU COPERNICUS GESELLSCHAFT MBH PI GOTTINGEN PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY SN 1994-0416 EI 1994-0424 J9 CRYOSPHERE JI Cryosphere PY 2015 VL 9 IS 4 BP 1735 EP 1745 DI 10.5194/tc-9-1735-2015 PG 11 WC Geography, Physical; Geosciences, Multidisciplinary SC Physical Geography; Geology GA CQ5QY UT WOS:000360661700027 ER PT J AU Ramp, SR Yang, YJ Reeder, DB Buijsman, MC Bahr, FL AF Ramp, S. R. Yang, Y. J. Reeder, D. B. Buijsman, M. C. Bahr, F. L. TI The evolution of mode-2 nonlinear internal waves over the northern Heng-Chun Ridge south of Taiwan SO NONLINEAR PROCESSES IN GEOPHYSICS LA English DT Article ID DOPPLER CURRENT PROFILERS; CHINA SEA; LUZON STRAIT; BAROCLINIC TIDES; SOLITARY WAVES; TIDAL FLOW; OCEAN; DISSIPATION; PROPAGATION; TOPOGRAPHY AB Two research cruises were conducted from the R/V OCEAN RESEARCHER 3 during 05-16 August 2011 to study the generation and propagation of high-frequency nonlinear internal waves (NLIWs) over the northern Heng-Chun Ridge south of Taiwan. The primary study site was on top of a smaller ridge about 15 km wide by 400 m high atop the primary ridge, with a sill depth of approximately 600 m. A single mooring was used in conjunction with shipboard observations to sample the temperature, salinity and velocity structure over the ridge. All the sensors observed a profusion of mode-2 NLIWs. Some of the waves were solitary, while others had as many as seven evenly spaced waves per packet. The waves all exhibited classic mode-2 velocity structure with a core near 150-200m and opposing velocities in the layers above and below. At least two and possibly three most common propagation directions emerged from the analysis, suggesting multiple generation sites near the eastern side of the ridge. The turbulent dissipation due to overturns in the wave cores was very high at order 10(-4)-10(-3)W kg(-1). The energy budget suggests that the waves cannot persist very far from the ridge and likely do not contribute to the South China Sea transbasin wave phenomenon. C1 [Ramp, S. R.] Soliton Ocean Serv Inc, Carmel Valley, CA 93924 USA. [Yang, Y. J.] Natl Taiwan Univ, Inst Oceanog, Taipei 10764, Taiwan. [Reeder, D. B.] Naval Postgrad Sch, Dept Oceanog, Monterey, CA 93943 USA. [Buijsman, M. C.] Univ So Mississippi, Stennis Space Ctr, MS 39529 USA. [Bahr, F. L.] Monterey Bay Aquarium Res Inst, Moss Landing, CA 95039 USA. RP Ramp, SR (reprint author), Soliton Ocean Serv Inc, Carmel Valley, CA 93924 USA. EM sramp@solitonocean.com OI Yang, Yiing-Jang/0000-0002-6637-9311 FU ONR Internal Waves in Straits (IWISE) experiment [N00014-12-1-0371]; National Science Council (NSC) of Taiwan FX This work was supported as part of the ONR Internal Waves in Straits (IWISE) experiment under grant number N00014-12-1-0371 and by the National Science Council (NSC) of Taiwan. The cruises were expertly executed by the officers, crew, and professional staff of the research vessel OCEAN RESEARCHER 3. An anonymous review and helpful comments by J. Moum (OSU) improved the quality of the manuscript. NR 57 TC 0 Z9 0 U1 4 U2 7 PU COPERNICUS GESELLSCHAFT MBH PI GOTTINGEN PA BAHNHOFSALLEE 1E, GOTTINGEN, 37081, GERMANY SN 1023-5809 J9 NONLINEAR PROC GEOPH JI Nonlinear Process Geophys. PY 2015 VL 22 IS 4 BP 413 EP 431 DI 10.5194/npg-22-413-2015 PG 19 WC Geochemistry & Geophysics; Meteorology & Atmospheric Sciences SC Geochemistry & Geophysics; Meteorology & Atmospheric Sciences GA CQ5OR UT WOS:000360655400006 ER PT J AU Li, XW Wang, XD Chu, PC Zhao, DL AF Li, Xuewei Wang, Xidong Chu, Peter C. Zhao, Dongliang TI Low-Frequency Variability of the Yellow Sea Cold Water Mass Identified from the China Coastal Waters and Adjacent Seas Reanalysis SO ADVANCES IN METEOROLOGY LA English DT Article ID INTERDECADAL VARIABILITY; OSCILLATION AB This study uses the China Coastal Waters and Adjacent Seas Reanalysis (CORA) data to investigate the interannual and decadal variability of the Yellow Sea cold water mass (YSCWM) and its relationship to climate indices including the Arctic Oscillation (AO), El Nino/Southern Oscillation (ENSO), and Pacific Decadal Oscillation (PDO). On the interannual timescale, the strong correlation between winter PDO and the YSCWM may indicate the dominant effect of winter PDO on the YSCWM through the modulation of local heat flux and wind stress. It is also found that the local wind stress and heat flux in summer have little impact on the interannual variability of the YSCWM. On the decadal time scale, the YSCWM is associated with winter AO and winter PDO. Winter AO mainly controls local heat flux, modulating the decadal variability of the YSCWM. In contrast, winter PDO is strongly connected with winter heat flux and wind stress to modulate the decadal variability of the YSCWM. In summer, for three climate factors, ENSO is the dominant factor controlling the decadal variability of the YSCWM. C1 [Li, Xuewei; Zhao, Dongliang] Ocean Univ China, Phys Oceanog Lab, Qingdao 266100, Peoples R China. [Wang, Xidong] Natl Marine Data & Informat Serv, SOA, Key Lab Marine Environm Informat Technol, Tianjin 300171, Peoples R China. [Chu, Peter C.] Naval Postgrad Sch, Dept Oceanog, Naval Ocean Anal & Predict Lab, Monterey, CA 93943 USA. RP Wang, XD (reprint author), Natl Marine Data & Informat Serv, SOA, Key Lab Marine Environm Informat Technol, Tianjin 300171, Peoples R China. EM xidong_wang@yahoo.com FU National Basic Research Program of China [2013CB430304]; National Natural Science Foundation of China [41106005, 41176003, 41206178, 41376015, 41376013, 41306006, 41276015]; National High-Tech R&D Program of China [2013AA09A505]; Global Change and Air-Sea Interaction [GASI-01-01-12]; Naval Oceanographic Office FX This study is supported by the National Basic Research Program of China (2013CB430304), National Natural Science Foundation of China (41106005, 41176003, 41206178, 41376015, 41376013, 41306006, and 41276015), National High-Tech R&D Program (2013AA09A505) of China, and Global Change and Air-Sea Interaction (GASI-01-01-12). Peter C. Chu is supported by the Naval Oceanographic Office. The Arctic Oscillation, Multivariate ENSO, and Pacific Decadal Oscillation indices are downloaded from the websites: http://www.cpc.ncep.noaa.gov/, http://www.cdc.noaa.gov/, and http://jisao.washington.edu/pdo, respectively. NR 25 TC 0 Z9 0 U1 2 U2 9 PU HINDAWI PUBLISHING CORPORATION PI NEW YORK PA 410 PARK AVENUE, 15TH FLOOR, #287 PMB, NEW YORK, NY 10022 USA SN 1687-9309 EI 1687-9317 J9 ADV METEOROL JI Adv. Meteorol. PY 2015 AR 269859 DI 10.1155/2015/269859 PG 14 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA CP0CV UT WOS:000359544300001 ER PT J AU Zhang, XF Li, D Chu, PC Zhang, LX Li, W AF Zhang, Xuefeng Li, Dong Chu, Peter C. Zhang, Lianxin Li, Wei TI Diffusion Filters for Variational Data Assimilation of Sea Surface Temperature in an Intermediate Climate Model SO ADVANCES IN METEOROLOGY LA English DT Article ID COUPLED MODEL; PARAMETER OPTIMIZATION; OBJECTIVE ANALYSIS; RECURSIVE FILTER; PART I; SYSTEM; PREDICTION; COVARIANCES; VARIABILITY; IMPACT AB Sequential, adaptive, and gradient diffusion filters are implemented into spatial multiscale three-dimensional variational data assimilation (3DVAR) as alternative schemes to model background error covariance matrix for the commonly used correction scale method, recursive filter method, and sequential 3DVAR. The gradient diffusion filter (GDF) is verified by a two-dimensional sea surface temperature (SST) assimilation experiment. Compared to the existing DF, the new GDF scheme shows a superior performance in the assimilation experiment due to its success in extracting the spatial multiscale information. The GDF can retrieve successfully the longwave information over the whole analysis domain and the shortwave information over data-dense regions. After that, a perfect twin data assimilation experiment framework is designed to study the effect of the GDF on the state estimation based on an intermediate coupled model. In this framework, the assimilation model is subject to "biased" initial fields from the "truth" model. While the GDF reduces the model bias in general, it can enhance the accuracy of the state estimation in the region that the observations are removed, especially in the South Ocean. In addition, the higher forecast skill can be obtained through the better initial state fields produced by the GDF. C1 [Zhang, Xuefeng] Harbin Engn Univ, Coll Automat, Harbin 150001, Peoples R China. [Zhang, Xuefeng; Li, Dong; Zhang, Lianxin; Li, Wei] State Ocean Adm, Natl Marine Data & Informat Serv, Key Lab Marine Environm Informat Technol, Tianjin 300171, Peoples R China. [Chu, Peter C.] Naval Postgrad Sch, Dept Oceanog, Naval Ocean Anal & Predict Lab, Monterey, CA 93943 USA. [Zhang, Lianxin] Ocean Univ China, Coll Phys & Environm Oceanog, Qingdao 266100, Peoples R China. RP Zhang, XF (reprint author), Harbin Engn Univ, Coll Automat, Harbin 150001, Peoples R China. EM xfz_nmdis@126.com FU National Basic Research Program of China [2013CB430304]; National High-Tech R&D Program of China [2013AA09A505]; National Natural Science Foundation of China [41206178, 41376015, 41376013, 51379049] FX The authors would like to express their gratitude to two reviewers for their helpful comments and suggestions, which contributed to greatly improve the original paper. This work was supported by the National Basic Research Program of China (no. 2013CB430304), National High-Tech R&D Program of China (no. 2013AA09A505), and National Natural Science Foundation of China (nos. 41206178, 41376015, 41376013, and 51379049). NR 31 TC 0 Z9 0 U1 0 U2 4 PU HINDAWI PUBLISHING CORPORATION PI NEW YORK PA 410 PARK AVENUE, 15TH FLOOR, #287 PMB, NEW YORK, NY 10022 USA SN 1687-9309 EI 1687-9317 J9 ADV METEOROL JI Adv. Meteorol. PY 2015 AR 751404 DI 10.1155/2015/751404 PG 17 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA CP0EG UT WOS:000359548000001 ER PT J AU Elbaz, L Phillips, J Artyushkova, K More, K Brosha, EL AF Elbaz, Lior Phillips, Jonathan Artyushkova, Kateryna More, Karren Brosha, Eric L. TI Evidence of High Electrocatalytic Activity of Molybdenum Carbide Supported Platinum Nanorafts SO JOURNAL OF THE ELECTROCHEMICAL SOCIETY LA English DT Article ID PEM FUEL-CELLS; OXYGEN REDUCTION; CORROSION; ELECTRODES; COMPOSITE; NITRIDES; GOLD AB A remarkable new supported metal catalyst structure on Mo2C substrates, 'rafts' of platinum consisting of less than 6 atoms, was synthesized and found to be catalytically active electrocatalyst for oxygen reduction. A novel catalytic synthesis method: Reduction-Expansion-Synthesis of Catalysts (RES-C), from rapid heating of dry mixture of solid precursors of molybdenum, platinum and urea in an inert gas environment, led to the creation of unique platinum Nanorafts on Mo2C. The Pt Nanorafts offer a complete utilization of the Pt atoms for electrocatalysis with no "hidden" atoms. This structure is strongly affected by its interaction with the substrate as was observed by XPS. In this work, we show for the first time, evidence of electrocatalytic activity with such small clusters of non-crystalline Pt atoms as catalysts for oxygen reduction. Electrochemical half-cell characterization shows that this structure permit more efficient utilization of platinum, with mass activity conservatively measured to be 50% that of platinum particles generated using traditional approaches. Moreover, as cathode fuel cell catalysts, these novel material may dramatically enhance stability, relative to the commercial Pt/carbon catalysts. (C) 2015 The Electrochemical Society. All rights reserved. C1 [Elbaz, Lior] Bar Ilan Univ, Dept Chem, IL-52900 Ramat Gan, Israel. [Phillips, Jonathan] Naval Postgrad Sch, Monterey, CA 93943 USA. [Artyushkova, Kateryna] Univ New Mexico, Dept Chem Engn, Albuquerque, NM 87131 USA. [More, Karren] Oakridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA. [Brosha, Eric L.] Los Alamos Natl Lab, Mat Phys & Applicat Div, Los Alamos, NM 87545 USA. RP Elbaz, L (reprint author), Bar Ilan Univ, Dept Chem, IL-52900 Ramat Gan, Israel. EM lior.elbaz@hotmail.com RI Artyushkova, Kateryna/B-4709-2008; More, Karren/A-8097-2016 OI Artyushkova, Kateryna/0000-0002-2611-0422; More, Karren/0000-0001-5223-9097 FU U.S. Department of Energy Fuel Cell Technologies Office; Israel Ministry of Defense (MAFAT) FX We wish to thank the U.S. Department of Energy Fuel Cell Technologies Office and the Israel Ministry of Defense (MAFAT) for providing funding for this work. NR 29 TC 3 Z9 3 U1 3 U2 24 PU ELECTROCHEMICAL SOC INC PI PENNINGTON PA 65 SOUTH MAIN STREET, PENNINGTON, NJ 08534 USA SN 0013-4651 EI 1945-7111 J9 J ELECTROCHEM SOC JI J. Electrochem. Soc. PY 2015 VL 162 IS 9 BP H681 EP H685 DI 10.1149/2.0991509jes PG 5 WC Electrochemistry; Materials Science, Coatings & Films SC Electrochemistry; Materials Science GA CO5CL UT WOS:000359177100104 ER PT J AU Marshall, AM Meadows, C Narendran, P AF Marshall, Andrew M. Meadows, Catherine Narendran, Paliath TI ON UNIFICATION MODULO ONE-SIDED DISTRIBUTIVITY: ALGORITHMS, VARIANTS AND ASYMMETRY SO LOGICAL METHODS IN COMPUTER SCIENCE LA English DT Article DE Unification; One-Sided Distributivity; Equational Logic; Asymmetric Unification ID MONADIC 2ND-ORDER UNIFICATION; COMPRESSION; STRINGS AB An algorithm for unification modulo one-sided distributivity is an early result Tiden and Arnborg. More recently this theory has been of interest in cryptographic protocol analysis due to the fact that many cryptographic operators satisfy this property. Unfortunately the algorithm presented irl the paper, although correct, has recently been shown not to be polynomial time bounded as claimed. In addition, for some instances, there exist most general unifiers that are exponentially large with respect to the input size. In this paper we first present a new polynomial time algorithm that solves the decision problem for a non-trivial subcase, based on a typed theory, of unification modulo one-sided distributivily. Next we present a new polynomial algorithm that solves the decision problem for unification modulo one-sided distributivity. A construction, employing string compression, is used to achieve the polynomial bound. Lastly, we examine the one-sided distributivity problem in the new asymmetric unification paradigm. We give the first asymmetric unification algorithm for one-sided distributivity. C1 [Marshall, Andrew M.] Univ Mary Washington, Fredericksburg, VA 22401 USA. [Meadows, Catherine] Naval Res Lab, Washington, DC USA. [Narendran, Paliath] SUNY Albany, Albany, NY 12222 USA. RP Marshall, AM (reprint author), Univ Mary Washington, Fredericksburg, VA 22401 USA. EM marshall@umw.edu; catherine.meadows@nrl.navy.mil; dran@cs.albany.edu NR 22 TC 0 Z9 0 U1 0 U2 0 PU TECH UNIV BRAUNSCHWEIG PI BRAUNSCHWEIG PA INST THEORETICAL COMPUTER SCI, MUHLENPFORDTSTR 22-23, BRAUNSCHWEIG, 38106, GERMANY SN 1860-5974 J9 LOG METH COMPUT SCI JI Log. Meth. Comput. Sci. PY 2015 VL 11 IS 2 AR 11 DI 10.2168/LMCS-11(2:11)2015 PG 39 WC Computer Science, Theory & Methods; Logic SC Computer Science; Science & Technology - Other Topics GA CO9CS UT WOS:000359470700012 ER PT S AU Breger, JC Walper, SA Oh, E Susumu, K Stewart, MH Deschamps, JR Ancona, MG Medintz, IL AF Breger, Joyce C. Walper, Scott A. Oh, Eunkeu Susumu, Kimihiro Stewart, Michael H. Deschamps, Jeffrey R. Ancona, Mario G. Medintz, Igor L. BE Cullum, BM McLamore, ES TI Enhancing enzymatic efficiency by attachment to semiconductor nanoparticles for biosensor applications SO SMART BIOMEDICAL AND PHYSIOLOGICAL SENSOR TECHNOLOGY XII SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Smart Biomedical and Physiological Sensor Technology XII CY APR 23-24, 2015 CL Baltimore, MD SP SPIE DE Quantum dots; enzyme; phopsphotriesterase; paraoxon; kinetics; biosensor ID QUANTUM DOTS; BACTERIAL COLLAGEN; PHOSPHOTRIESTERASE; BIOCONJUGATION; PURIFICATION; BIOANALYSIS; POLYMERS; LIGANDS AB Nanosensors employing quantum dots (QDs) with appended biofunctional moieties offer tremendous promise for disease surveillance/diagnostics and chemical/biological threat activity. Their small size permits cell penetration and their inherent photochemical properties are well-suited for rapid, optical measurement. The effectiveness of enzymes immobilized on QDs, however, are not completely understood, hindering development of chemical/biological sensors and remediation materials. Here, we analyze enzyme effectiveness for the neutralization of a simulant nerve agent when attached to two distinctly-sized QDs. Two sizes of QDs, 525 or 625 nm, were appended with DHLA ligands to improve aqueous stability and prevent aggregation. Various molar ratios of de novo phosphotriesterase trimer (PTE3) were rapidly self-assembled via spontaneous metal coordination of the PTE oligohistidine tag onto the Zn2+-rich QD surface. PTE catalyzes the detoxification of organophosphate pesticides (e.g, paraoxon, an analog of sarin) to p-nitrophenol whose absorbance can be measured at 405 nm. The optimal ratio of PTE3 to 525 nm and 625 nm QD's was determined to be 12 and 24, respectively. The enhanced enzyme performance in both cases is most likely due to increased enzyme-substrate interactions from improvements in enzyme orientation, enzyme density, and substrate diffusion on or near the QD. Development of these nansosensors as optical-based biosensors (e.g., within compact microfluidic devices) may greatly improve the sensitivity of conventional biological/chemical detection schemes. C1 [Breger, Joyce C.; Walper, Scott A.; Deschamps, Jeffrey R.; Medintz, Igor L.] US Naval Res Lab, Ctr Bio Mol Sci & Engn, Washington, DC 20375 USA. [Oh, Eunkeu; Susumu, Kimihiro; Stewart, Michael H.] US Naval Res Lab, Opt Sci Div, Washington, DC 20375 USA. [Ancona, Mario G.] US Naval Res Lab, Elect Sci & Technol Div, Washington, DC 20375 USA. [Oh, Eunkeu; Susumu, Kimihiro] Sotera Def Solut Inc, Columbia, MD 21046 USA. [Breger, Joyce C.] Amer Soc Engn Educ, Washington, DC 20036 USA. RP Breger, JC (reprint author), US Naval Res Lab, Ctr Bio Mol Sci & Engn, Code 6900, Washington, DC 20375 USA. NR 33 TC 0 Z9 0 U1 3 U2 7 PU SPIE-INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA SN 0277-786X BN 978-1-62841-603-9 J9 PROC SPIE PY 2015 VL 9487 AR 94870S DI 10.1117/12.2180645 PG 7 WC Engineering, Biomedical; Materials Science, Biomaterials; Optics SC Engineering; Materials Science; Optics GA BD3CJ UT WOS:000359469900012 ER PT J AU Kalman, J Glumac, NG Krier, H AF Kalman, Joseph Glumac, Nick G. Krier, Herman TI Experimental Study of Constant Volume Sulfur Dust Explosions SO JOURNAL OF COMBUSTION LA English DT Article ID BURNING VELOCITY; COMBUSTION; ALUMINUM AB Dust flames have been studied for decades because of their importance in industrial safety and accident prevention. Recently, dust flames have become a promising candidate to counter biological warfare. Sulfur in particular is one of the elements that is of interest, but sulfur dust flames are not well understood. Flame temperature and flame speed were measured for sulfur flames with particle concentrations of 280 and 560 g/m(3) and oxygen concentration between 10% and 42% by volume. The flame temperature increased with oxygen concentration from approximately 900 K for the 10% oxygen cases to temperatures exceeding 2000 K under oxygen enriched conditions. The temperature was also observed to increase slightly with particle concentration. The flame speed was observed to increase from approximately 10 cm/s with 10% oxygen to 57 and 81 cm/s with 42% oxygen for the 280 and 560 g/m(3) cases, respectively. A scaling analysis determined that flames burning in 21% and 42% oxygen are diffusion limited. Finally, it was determined that pressure-time data may likely be used to measure flame speed in constant volume dust explosions. C1 [Kalman, Joseph; Glumac, Nick G.; Krier, Herman] Univ Illinois, Urbana, IL 61801 USA. [Kalman, Joseph] Naval Air Warfare Ctr, Weapons Div, China Lake, CA 93555 USA. RP Kalman, J (reprint author), Univ Illinois, 1206 W Green St, Urbana, IL 61801 USA. EM kalmanjm@gmail.com NR 26 TC 0 Z9 0 U1 1 U2 1 PU HINDAWI PUBLISHING CORPORATION PI NEW YORK PA 410 PARK AVENUE, 15TH FLOOR, #287 PMB, NEW YORK, NY 10022 USA SN 2090-1968 EI 2090-1976 J9 J COMBUST JI J. Combust. PY 2015 AR 817259 DI 10.1155/2015/817259 PG 11 WC Engineering, Chemical SC Engineering GA CJ9QO UT WOS:000355837500001 ER PT S AU Bildstein, V Garrett, PE Ashley, SF Ball, GC Bianco, L Bandyopadhyay, D Bangay, J Crider, BP Demand, G Deng, G Dillmann, I Finlay, A Garnsworthy, AB Hackman, G Hadinia, B Krucken, R Leach, KG Martin, JP McEllistrem, MT Pearson, CJ Peters, EE Prados-Estevez, FM Radich, A Sarazin, F Sumithrarachchi, C Svensson, CE Vanhoy, JR Wong, J Yates, SW AF Bildstein, V. Garrett, P. E. Ashley, S. F. Ball, G. C. Bianco, L. Bandyopadhyay, D. Bangay, J. Crider, B. P. Demand, G. Deng, G. Dillmann, I. Finlay, A. Garnsworthy, A. B. Hackman, G. Hadinia, B. Kruecken, R. Leach, K. G. Martin, J-P. McEllistrem, M. T. Pearson, C. J. Peters, E. E. Prados-Estevez, F. M. Radich, A. Sarazin, F. Sumithrarachchi, C. Svensson, C. E. Vanhoy, J. R. Wong, J. Yates, S. W. BE Schwengner, R Zuber, K TI DESCANT and beta-delayed neutron measurements at TRIUMF SO CGS15 - CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS SE EPJ Web of Conferences LA English DT Proceedings Paper CT 15th International Symposium on Capture Gamma-Ray Spectroscopy and Related Topics (CGS) CY AUG 25-29, 2014 CL Dresden, GERMANY AB The DESCANT array (Deuterated Scintillator Array for Neutron Tagging) consists of up to 70 detectors, each filled with approximately 2 liters of deuterated benzene. This scintillator material offers pulse-shape discrimination (PSD) capabilities to distinguish between neutrons and gamma-rays interacting with the scintillator material. In addition, the anisotropic nature of n-d scattering allows for the determination of the neutron energy spectrum directly from the pulse height spectrum, complementing the traditional time-of-flight (ToF) information. DESCANT can be coupled either to the TIGRESS (TRIUMF-ISAC Gamma-Ray Escape Suppressed Spectrometer) gamma-ray spectrometer [1] located in the ISAC-II [2] hall of TRIUMF for in-beam experiments, or to the GRIFFIN (Gamma-Ray Infrastructure For Fundamental Investigations of Nuclei) gamma-ray spectrometer [3] located in the ISAC-I hall of TRIUMF for decay spectroscopy experiments. C1 [Bildstein, V.; Garrett, P. E.; Bianco, L.; Bandyopadhyay, D.; Bangay, J.; Demand, G.; Deng, G.; Finlay, A.; Hadinia, B.; Leach, K. G.; Radich, A.; Sarazin, F.; Sumithrarachchi, C.; Svensson, C. E.; Wong, J.] Univ Guelph, Dept Phys, Guelph, ON N1G 2W1, Canada. [Ashley, S. F.; Crider, B. P.; McEllistrem, M. T.; Peters, E. E.; Prados-Estevez, F. M.; Yates, S. W.] Univ Kentucky, Dept Chem, Lexington, KY 40506 USA. [Ashley, S. F.; Crider, B. P.; McEllistrem, M. T.; Peters, E. E.; Prados-Estevez, F. M.; Yates, S. W.] Univ Kentucky, Dept Phys & Astron, Lexington, KY 40506 USA. [Ball, G. C.; Dillmann, I.; Garnsworthy, A. B.; Hackman, G.; Kruecken, R.; Leach, K. G.; Pearson, C. J.] TRIUMF, Vancouver, BC V6T 2A3, Canada. [Martin, J-P.] Univ Montreal, Dept Phys, Montreal, PQ H3C 3J7, Canada. [Sarazin, F.] Colorado Sch Mines, Dept Phys, Golden, CO 80401 USA. [Vanhoy, J. R.] US Naval Acad, Dept Phys, Annapolis, MD 21402 USA. [Ashley, S. F.] Univ Cambridge, Dept Engn, Cambridge CB4 1JT, England. [Bianco, L.] DESY, D-22607 Hamburg, Germany. [Bandyopadhyay, D.] Bhabha Atom Res Ctr, Bombay 400085, Maharashtra, India. [Crider, B. P.; Sumithrarachchi, C.] Michigan State Univ, Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA. RP Bildstein, V (reprint author), Univ Guelph, Dept Phys, Guelph, ON N1G 2W1, Canada. EM vbildste@uoguelph.ca RI Kruecken, Reiner/A-1640-2013; OI Kruecken, Reiner/0000-0002-2755-8042; Ashley, Stephen/0000-0001-5139-2209 NR 6 TC 1 Z9 1 U1 1 U2 2 PU E D P SCIENCES PI CEDEX A PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A, FRANCE SN 2100-014X BN 978-2-7598-1794-8 J9 EPJ WEB CONF PY 2015 VL 93 AR 07005 DI 10.1051/epjconf/20159307005 PG 4 WC Physics, Multidisciplinary; Spectroscopy SC Physics; Spectroscopy GA BD1RU UT WOS:000358307500108 ER PT S AU Crider, BP Peters, EE Ross, TJ McEllistrem, MT Prados-Estevez, FM Allmond, JM Vanhoy, JR Yates, SW AF Crider, B. P. Peters, E. E. Ross, T. J. McEllistrem, M. T. Prados-Estevez, F. M. Allmond, J. M. Vanhoy, J. R. Yates, S. W. BE Schwengner, R Zuber, K TI Inelastic neutron scattering studies of Ge-76 and Se-76: relevance to neutrinoless double-beta decay SO CGS15 - CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS SE EPJ Web of Conferences LA English DT Proceedings Paper CT 15th International Symposium on Capture Gamma-Ray Spectroscopy and Related Topics (CGS) CY AUG 25-29, 2014 CL Dresden, GERMANY ID ATOMIC-NUCLEI AB Inelastic neutron scattering measurements were performed at the University of Kentucky Accelerator Laboratory on enriched Ge-76 and Se-76 scattering samples. From measurements at incident neutron energies from 2.0 to 4.0 MeV, many new levels were identified and characterized in each nucleus; level lifetimes, transition probabilities, multipole mixing ratios, and other properties were determined. In addition, gamma-ray cross sections for the Ge-76(n,n'gamma) reaction were measured at neutron energies up to 5.0 MeV, with the goal of determining the cross sections of gamma rays in 2040-keV region, which corresponds to the region of interest in the neutrinoless double beta decay of Ge-76. Gamma rays from the three strongest branches from the 3952-keV level were observed, but the previously reported 2041-keV gamma ray was not. Population cross sections across the range of incident neutron energies were determined for the 3952-keV level, resulting in a cross section of similar to 0.1 mb for the 2041-keV branch using the previously determined branching ratios. Beyond this, the data from these experiments indicate that previously unreported gamma rays from levels in Ge-76 can be found in the 2039-keV region. C1 [Crider, B. P.; Ross, T. J.; McEllistrem, M. T.; Prados-Estevez, F. M.; Vanhoy, J. R.; Yates, S. W.] Univ Kentucky, Dept Phys & Astron, Lexington, KY 40506 USA. [Peters, E. E.; Ross, T. J.; Prados-Estevez, F. M.; Vanhoy, J. R.; Yates, S. W.] Univ Kentucky, Dept Chem, Lexington, KY 40506 USA. [Allmond, J. M.] Oak Ridge Natl Lab, Joint Inst Nucl Phys & Applicat, Oak Ridge, TN 37831 USA. [Vanhoy, J. R.] US Naval Acad, Dept Phys, Annapolis, MD 21402 USA. RP Yates, SW (reprint author), Univ Kentucky, Dept Phys & Astron, Lexington, KY 40506 USA. EM yates@uky.edu NR 25 TC 0 Z9 0 U1 0 U2 0 PU E D P SCIENCES PI CEDEX A PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A, FRANCE SN 2100-014X BN 978-2-7598-1794-8 J9 EPJ WEB CONF PY 2015 VL 93 AR 05001 DI 10.1051/epjconf/20159305001 PG 5 WC Physics, Multidisciplinary; Spectroscopy SC Physics; Spectroscopy GA BD1RU UT WOS:000358307500096 ER PT S AU Hicks, SF Vanhoy, JR French, AJ Henderson, SL Howard, TJ Pecha, RL Santonil, ZC Crider, BP Liu, S McEllistrem, MT Peters, EE Prados-Estevez, FM Ross, TJ Yates, SW AF Hicks, S. F. Vanhoy, J. R. French, A. J. Henderson, S. L. Howard, T. J. Pecha, R. L. Santonil, Z. C. Crider, B. P. Liu, S. McEllistrem, M. T. Peters, E. E. Prados-Estevez, F. M. Ross, T. J. Yates, S. W. BE Schwengner, R Zuber, K TI Studies of Fe-54,Fe-56 Neutron Scattering Cross Sections SO CGS15 - CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS SE EPJ Web of Conferences LA English DT Proceedings Paper CT 15th International Symposium on Capture Gamma-Ray Spectroscopy and Related Topics (CGS) CY AUG 25-29, 2014 CL Dresden, GERMANY AB Elastic and inelastic neutron scattering differential cross sections and gamma-ray production cross sections have been measured on Fe-54,Fe-56 at several incident energies in the fast neutron region between 1.5 and 4.7 MeV. All measurements were completed at the University of Kentucky Accelerator Laboratory (UKAL) using a 7-MV Model CN Van de Graaff accelerator, along with the neutron production and neutron and gamma-ray detection systems located there. The facilities at UKAL allow the investigation of both elastic and inelastic scattering with nearly mono-energetic incident neutrons. Time-of-flight techniques were used to detect the scattered neutrons for the differential cross section measurements. The measured cross sections are important for fission reactor applications and also for testing global model calculations such as those found at ENDF, since describing both the elastic and inelastic scattering is important for determining the direct and compound components of the scattering mechanism. The gamma-ray production cross sections are used to determine cross sections to unresolved levels in the neutron scattering experiments. Results from our measurements and comparisons to model calculations are presented. C1 [Hicks, S. F.; French, A. J.; Henderson, S. L.; Howard, T. J.; Pecha, R. L.; Santonil, Z. C.] Univ Dallas, Dept Phys, Irving, TX 75062 USA. [Vanhoy, J. R.] US Naval Acad, Dept Phys, Annapolis, MD 21402 USA. [Crider, B. P.; Liu, S.; McEllistrem, M. T.; Prados-Estevez, F. M.; Ross, T. J.; Yates, S. W.] Univ Kentucky, Dept Phys, Lexington, KY 40506 USA. [McEllistrem, M. T.; Peters, E. E.; Prados-Estevez, F. M.; Ross, T. J.; Yates, S. W.] Univ Kentucky, Dept Chem, Lexington, KY 40506 USA. RP Hicks, SF (reprint author), Univ Dallas, Dept Phys, Irving, TX 75062 USA. EM hicks@udallas.edu NR 4 TC 0 Z9 0 U1 1 U2 2 PU E D P SCIENCES PI CEDEX A PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A, FRANCE SN 2100-014X BN 978-2-7598-1794-8 J9 EPJ WEB CONF PY 2015 VL 93 AR 02002 DI 10.1051/epjconf/20159302002 PG 3 WC Physics, Multidisciplinary; Spectroscopy SC Physics; Spectroscopy GA BD1RU UT WOS:000358307500057 ER PT S AU Ross, TJ Peters, EE Chakraborty, A Crider, BP Kumar, A Liu, SH McEllistrem, MT Prados-Estevez, FM Vanhoy, JR Yates, SW AF Ross, T. J. Peters, E. E. Chakraborty, A. Crider, B. P. Kumar, A. Liu, S. H. McEllistrem, M. T. Prados-Estevez, F. M. Vanhoy, J. R. Yates, S. W. BE Schwengner, R Zuber, K TI "No-spin" states and low-lying structures in Xe-130 and Xe-136 SO CGS15 - CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS SE EPJ Web of Conferences LA English DT Proceedings Paper CT 15th International Symposium on Capture Gamma-Ray Spectroscopy and Related Topics (CGS) CY AUG 25-29, 2014 CL Dresden, GERMANY AB Inelastic neutron scattering on solid (XeF2)-Xe-130 and (XeF2)-Xe-136 targets was utilized to populate excited levels in Xe-130 and Xe-136. When calculating nuclear matrix elements vital to the understanding of double-beta decay, it is important to have a clear understanding of the low-lying level structure of both the parent and daughter nucleus. Of particular relevance to double-beta decay searches are the assignments of 0(+) states. We show here that in the case of Xe-130 there are several discrepancies in the adopted level structure. We found that one previous 0(+) candidate level (1590 keV) can be ruled out and assigned two additional candidates (2223 and 2242 keV). In Xe-136 we question the previous assignment of a 0(+) level at 2582 keV. Excitation function and angular distribution measurements were utilized to make spin and parity assignments of levels and place new transitions. C1 [Ross, T. J.; Peters, E. E.; Liu, S. H.; Prados-Estevez, F. M.; Yates, S. W.] Univ Kentucky, Dept Chem, Lexington, KY 40506 USA. [Ross, T. J.; Chakraborty, A.; Crider, B. P.; Kumar, A.; Liu, S. H.; McEllistrem, M. T.; Prados-Estevez, F. M.; Yates, S. W.] Univ Kentucky, Dept Phys & Astron, Lexington, KY 40506 USA. [Vanhoy, J. R.] US Naval Acad, Dept Phys, Annapolis, MD 21402 USA. RP Ross, TJ (reprint author), Univ Kentucky, Dept Chem, Lexington, KY 40506 USA. EM ph51tr@gmail.com; yates@uky.edu NR 12 TC 0 Z9 0 U1 0 U2 0 PU E D P SCIENCES PI CEDEX A PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A, FRANCE SN 2100-014X BN 978-2-7598-1794-8 J9 EPJ WEB CONF PY 2015 VL 93 AR 01010 DI 10.1051/epjconf/20159301010 PG 3 WC Physics, Multidisciplinary; Spectroscopy SC Physics; Spectroscopy GA BD1RU UT WOS:000358307500010 ER PT S AU Vanhoy, JR Hicks, SF Combs, BC Crider, BP French, AJ Garza, EA Henderson, SL Howard, TJ Liu, SH Nigam, S Pecha, RL Peters, EE Prados-Estevez, FM McEllistrem, MT Rice, BJ Ross, TJ Santonil, ZC Sidwell, LC Steves, JL Yates, SW AF Vanhoy, J. R. Hicks, S. F. Combs, B. C. Crider, B. P. French, A. J. Garza, E. A. Henderson, S. L. Howard, T. J. Liu, S. H. Nigam, S. Pecha, R. L. Peters, E. E. Prados-Estevez, F. M. McEllistrem, M. T. Rice, B. J. Ross, T. J. Santonil, Z. C. Sidwell, L. C. Steves, J. L. Yates, S. W. BE Schwengner, R Zuber, K TI The Neutron Time-of-Flight Cross Section Program at the University of Kentucky - Adventures in Analysis II SO CGS15 - CAPTURE GAMMA-RAY SPECTROSCOPY AND RELATED TOPICS SE EPJ Web of Conferences LA English DT Proceedings Paper CT 15th International Symposium on Capture Gamma-Ray Spectroscopy and Related Topics (CGS) CY AUG 25-29, 2014 CL Dresden, GERMANY AB Elastic and inelastic neutron differential cross sections are measured at the University of Kentucky Accelerator Laboratory (www.pa.uky.edu/accelerator/) at incident energies in the fast neutron region. The laboratorys facilities and instrumentation will be described and our measurement and analysis procedures outlined. Many corrections are required for neutron scattering experiments and the analysis utilizes information from many other cross section data sets and model calculations. Exploring and understanding the limitations of the foundational information and procedures are important for controlling the accuracy of the cross section results. We are examining the limitations in neutron detection efficiency, the normalization of (n, n ' gamma) cross sections, background reduction, spectrum stripping techniques, and attenuation and multiple scattering corrections. The resulting differential cross sections provide information on the compound elastic and coupled channels reaction mechanisms important for advanced reactor designs. C1 [Vanhoy, J. R.; Garza, E. A.; Rice, B. J.; Steves, J. L.] US Naval Acad, Dept Phys, Annapolis, MD 21402 USA. [Hicks, S. F.; Combs, B. C.; French, A. J.; Henderson, S. L.; Howard, T. J.; Pecha, R. L.; Santonil, Z. C.; Sidwell, L. C.] Univ Dallas, Dept Phys, Irving, TX 75062 USA. [Liu, S. H.; Nigam, S.; Peters, E. E.; Prados-Estevez, F. M.; McEllistrem, M. T.; Ross, T. J.; Yates, S. W.] Univ Kentucky, Dept Chem, Lexington, KY 40506 USA. [Crider, B. P.; Peters, E. E.; Prados-Estevez, F. M.; McEllistrem, M. T.; Ross, T. J.; Yates, S. W.] Univ Kentucky, Dept Phys & Astron, Lexington, KY 40506 USA. RP Vanhoy, JR (reprint author), US Naval Acad, Dept Phys, Annapolis, MD 21402 USA. EM vanhoy@usna.edu; hicks@udallas.edu; marcus@uky.edu; yates@uky.edu NR 6 TC 0 Z9 0 U1 0 U2 1 PU E D P SCIENCES PI CEDEX A PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A, FRANCE SN 2100-014X BN 978-2-7598-1794-8 J9 EPJ WEB CONF PY 2015 VL 93 AR 02014 DI 10.1051/epjconf/20159302014 PG 4 WC Physics, Multidisciplinary; Spectroscopy SC Physics; Spectroscopy GA BD1RU UT WOS:000358307500069 ER PT J AU Yao, KPC Risch, M Sayed, SY Lee, YL Harding, JR Grimaud, A Pour, N Xu, ZC Zhou, JG Mansour, A Barde, F Shao-Horn, Y AF Yao, Koffi P. C. Risch, Marcel Sayed, Sayed Youssef Lee, Yueh-Lin Harding, Jonathon R. Grimaud, Alexis Pour, Nir Xu, Zhichuan Zhou, Jigang Mansour, Azzam Barde, Fanny Shao-Horn, Yang TI Solid-state activation of Li2O2 oxidation kinetics and implications for Li-O-2 batteries SO ENERGY & ENVIRONMENTAL SCIENCE LA English DT Article ID LITHIUM-OXYGEN BATTERIES; TRANSITION-METAL OXIDES; LI-AIR BATTERIES; NONAQUEOUS LI-O-2; RU NANOPARTICLES; CATALYST; ELECTRODES; CARBON; PERFORMANCE; CATHODE AB As one of the most theoretically promising next-generation chemistries, Li-O-2 batteries are the subject of intense research to address their stability, cycling, and efficiency issues. The recharge kinetics of Li-O-2 are especially sluggish, prompting the use of metal nanoparticles as reaction promoters. In this work, we probe the underlying pathway of kinetics enhancement by transition metal and oxide particles using a combination of electrochemistry, X-ray absorption spectroscopy, and thermochemical analysis in carbon-free and carbon-containing electrodes. We highlight the high activity of the group VI transition metals Mo and Cr, which are comparable to noble metal Ru and coincide with XAS measured changes in surface oxidation state matched to the formation of Li2MoO4 and Li2CrO4. A strong correlation between conversion enthalpies of Li2O2 with the promoter surface (Li2O2 + MaOb +/- O-2 -> LixMyOz) and electrochemical activity is found that unifies the behaviour of solid-state promoters. In the absence of soluble species on charge and the decomposition of Li2O2 proceeding through solid solution, enhancement of Li2O2 oxidation is mediated by chemical conversion of Li2O2 with slow oxidation kinetics to a lithium metal oxide. Our mechanistic findings provide new insights into the selection and/or employment of electrode chemistry in Li-O-2 batteries. C1 [Yao, Koffi P. C.; Grimaud, Alexis; Shao-Horn, Yang] MIT, Dept Mech Engn, Cambridge, MA 02139 USA. [Yao, Koffi P. C.; Harding, Jonathon R.; Grimaud, Alexis; Shao-Horn, Yang] MIT, Electrochem Energy Lab, Cambridge, MA 02139 USA. [Risch, Marcel; Sayed, Sayed Youssef; Lee, Yueh-Lin; Pour, Nir] MIT, Elect Res Lab, Cambridge, MA 02139 USA. [Harding, Jonathon R.] MIT, Dept Chem Engn, Cambridge, MA 02139 USA. [Xu, Zhichuan] Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore. [Zhou, Jigang] Univ Saskatchewan, Canadian Light Source Inc, Saskatoon, SK S7N 0X4, Canada. [Mansour, Azzam] US Navy, Ctr Surface Warfare, Carderock Div, West Bethesda, MD 20817 USA. [Barde, Fanny] Toyota Motor Europe, Res & Dev 3, B-1930 Zaventem, Belgium. [Shao-Horn, Yang] MIT, Dept Mat Sci & Engn, Cambridge, MA 02139 USA. RP Yao, KPC (reprint author), MIT, Dept Mech Engn, 77 Massachusetts Ave, Cambridge, MA 02139 USA. EM shaohorn@mit.edu RI Xu, Zhichuan/D-1661-2013; LEE, YUEH-LIN/F-6274-2011; Zhou, Jigang/N-6831-2014; OI Xu, Zhichuan/0000-0001-7746-5920; LEE, YUEH-LIN/0000-0003-2477-6412; Zhou, Jigang/0000-0001-6644-2862; Yao, Koffi/0000-0003-4310-4347 FU Toyota Motor Europe; NSERC of Canada; NRC of Canada; CIHR of Canada; Province of Saskatchewan; WEDC; University of Saskatchewan; U.S. Department of Energy, Office of Basic Energy Sciences [DE-AC02-98CH10886]; Argonne National Laboratory [DE-AC02-06CH11357]; Natural Sciences and Engineering Research Council (NSERC) of Canada FX This work was supported by Toyota Motor Europe. Canadian Light Source is supported by the NSERC, NRC, CIHR of Canada, the Province of Saskatchewan, WEDC and the University of Saskatchewan. The National Synchrotron Light Source, Brookhaven National Laboratory is supported by the U.S. Department of Energy, Office of Basic Energy Sciences, under Contract No. DE-AC02-98CH10886. This research used resources of the Advanced Photon Source, a U.S. Department of Energy (DOE) Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory under Contract No. DE-AC02-06CH11357. Sayed Youssef Sayed is thankful for the support of a postdoctoral fellowship from the Natural Sciences and Engineering Research Council (NSERC) of Canada. The authors acknowledge the contribution of Nagore Ortiz-Vitoriano in the collection and analysis of XRD data of the Mo-promoted electrode presented in the ESI. NR 64 TC 11 Z9 11 U1 18 U2 69 PU ROYAL SOC CHEMISTRY PI CAMBRIDGE PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND SN 1754-5692 EI 1754-5706 J9 ENERG ENVIRON SCI JI Energy Environ. Sci. PY 2015 VL 8 IS 8 BP 2417 EP 2426 DI 10.1039/c5ee00967g PG 10 WC Chemistry, Multidisciplinary; Energy & Fuels; Engineering, Chemical; Environmental Sciences SC Chemistry; Energy & Fuels; Engineering; Environmental Sciences & Ecology GA CN8XZ UT WOS:000358730600020 ER PT S AU Witt, R AF Witt, Richard CA STAR Collaboration BE Aichelin, J Badala, A Bleicher, M Fabbietti, L Greco, V Markert, C VanHees, H TI Baryon Resonances in the STAR Experiment at RHIC SO RESONANCE WORKSHOP AT CATANIA SE EPJ Web of Conferences LA English DT Proceedings Paper CT Resonance Workshop at Catania CY NOV 03-07, 2014 CL Catania, ITALY SP INFN Sezione Catania, FIAS, Helmholtz Int Ctr FAIR, Univ Texas Austin ID TRANSVERSE-MOMENTUM; COLLISIONS; ENERGY; DEPENDENCE; SPECTRA AB We present measurements of mass, width, and yields of the Delta(1232)(++), Sigma(1385) and Lambda(1520) from p + p, d+Au, and Au+Au collisions at root S-NN = 200 GeV in the STAR experiment at Brookhaven National Laboratory's Relativistic Heavy-Ion Collider (RHIC). These measurements are discussed in the context of re-scattering and regeneration. We also discuss preliminary measurements of the Xi(1530) and possibilities for upcoming measurements based on recently collected data. C1 [Witt, Richard] US Naval Acad, Annapolis, MD 21402 USA. RP Witt, R (reprint author), US Naval Acad, Annapolis, MD 21402 USA. EM witt@usna.edu NR 18 TC 0 Z9 0 U1 1 U2 1 PU E D P SCIENCES PI CEDEX A PA 17 AVE DU HOGGAR PARC D ACTIVITES COUTABOEUF BP 112, F-91944 CEDEX A, FRANCE SN 2100-014X BN 978-2-7598-1828-0 J9 EPJ WEB CONF PY 2015 VL 97 AR 00031 DI 10.1051/epjconf/20159700031 PG 8 WC Physics, Multidisciplinary SC Physics GA BD1UY UT WOS:000358379600031 ER PT S AU Johnson, KJ Rose-Pehrsson, SL AF Johnson, Kevin J. Rose-Pehrsson, Susan L. BE Cooks, RG Pemberton, JE TI Sensor Array Design for Complex Sensing Tasks SO ANNUAL REVIEW OF ANALYTICAL CHEMISTRY, VOL 8 SE Annual Review of Analytical Chemistry LA English DT Article; Book Chapter DE chemical sensors; sensor arrays; array optimization ID ELECTRONIC-NOSE TECHNOLOGIES; VOLATILE ORGANIC-COMPOUNDS; PARTIAL LEAST-SQUARES; MACHINE OLFACTION; CHEMICAL SENSORS; GAS SENSORS; VAPOR MIXTURES; FEATURE-SELECTION; MULTITRANSDUCER ARRAYS; PATTERN-RECOGNITION AB Chemical detection in complex environments presents numerous challenges for successful implementation. Arrays of sensors are often implemented for complex chemical sensing tasks, but systematic understanding of how individual sensor response characteristics contribute overall detection system performance remains elusive, with generalized strategies for design and optimization of these arrays rarely reported and even less commonly adopted by practitioners. This review focuses on the literature of nonspecific sensor array design and optimization strategies as well as related work that may inform future efforts in complex sensing with arrays. C1 [Johnson, Kevin J.; Rose-Pehrsson, Susan L.] US Naval Res Lab, Div Chem, Washington, DC 20375 USA. RP Johnson, KJ (reprint author), US Naval Res Lab, Div Chem, Washington, DC 20375 USA. EM kevin.johnson@nrl.navy.mil; susan.rosepehrsson@nrl.navy.mil NR 143 TC 4 Z9 4 U1 6 U2 32 PU ANNUAL REVIEWS PI PALO ALTO PA 4139 EL CAMINO WAY, PO BOX 10139, PALO ALTO, CA 94303-0897 USA SN 1936-1327 BN 978-0-8243-4408-5 J9 ANNU REV ANAL CHEM JI Annu. Rev. Anal. Chem. PY 2015 VL 8 BP 287 EP 310 DI 10.1146/annurev-anchem-062011-143205 PG 24 WC Chemistry, Analytical; Spectroscopy SC Chemistry; Spectroscopy GA BD1WZ UT WOS:000358482400014 PM 26132346 ER PT S AU Szu, H Hsu, C Willey, J Landa, J Hsieh, M Larsen, LV Krzywicki, AT Tran, BQ Hoekstra, P Dillard, JT Krapels, KA Wardlaw, M Chu, KD AF Szu, Harold Hsu, Charles Willey, Jefferson Landa, Joseph Hsieh, Minder Larsen, Louis V. Krzywicki, Alan T. Tran, Binh Q. Hoekstra, Philip Dillard, John T. Krapels, Keith A. Wardlaw, Michael Chu, Kai-Dee BE Szu, HH Dai, L Zheng, Y TI OPTICAL DISPLAY FOR RADAR SENSING SO INDEPENDENT COMPONENT ANALYSES, COMPRESSIVE SAMPLING, LARGE DATA ANALYSES (LDA), NEURAL NETWORKS, BIOSYSTEMS, AND NANOENGINEERING XIII SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Independent Component Analyses, Compressive Sampling, Large Data Analyses (LDA), Neural Networks, Biosystems, and Nanoengineering XIII CY APR 23-24, 2015 CL Baltimore, MD SP SPIE DE Optical Display; Microwave Sensing; Compressive Sampling ID FREQUENCY INFORMATION; RECONSTRUCTION; TUMOR AB Boltzmann headstone S = k(B) Log W turns out to be the Rosette stone for Greek physics translation optical display of the microwave sensing hieroglyphics. The LHS is the molecular entropy S measuring the degree of uniformity scattering off the sensing cross sections. The RHS is the inverse relationship W = exp (s/kappa(B)) predicting the Planck radiation spectral distribution parameterized by the Kelvin temperature T. Use is made of the conservation energy law of the heat capacity of Reservoir (RV) change T Delta S = -Delta E equals to the internal energy change of black box (bb) subsystem. Moreover, an irreversible thermodynamics Delta S > 0 for collision mixing toward totally larger uniformity of heat death, asserted by Boltzmann, that derived the so-called Maxwell-Boltzmann canonical probability. Given the zero boundary condition black box, Planck solved a discrete standing wave eigenstatesE(bb) = {E-n}; E-n = (1/2 + n) (h) over bar omega; omega equivalent to 2 pi f. Together with the canonical partition function Q(bb) = root z Sigma(infinity)(n=0) z(n); z equivalent to exp(-beta(h) over bar omega); beta equivalent to 1/kappa T, an average ensemble average of all possible internal energy yielded the celebrated Planck radiation spectral Q(bb) = dos.[<(h)over bar>omega/exp((h) over bar omega/kappa T) - 1] equivalent to U-Planck where the density of states dos equivalent to 8 pi omega(2)/vertical bar C-o vertical bar(3). In summary, given the multi-spectral sensing data (X) over right arrow (bb) we applied Lagrange Constraint Neural Network (LCNN) to solve the Blind Sources Separation (BSS) for a set of equivalent bb target temperatures. From the measurements of specific value, slopes and shapes we can fit a set of Kelvin temperatures T's for each bb targets. As a result, we could apply the analytical continuation for each entropy sources along the temperature-unique Planck spectral curves always toward the RGB color temperature display for any sensing probing frequency. C1 [Szu, Harold; Hsu, Charles; Willey, Jefferson; Landa, Joseph; Hsieh, Minder; Larsen, Louis V.; Krzywicki, Alan T.; Tran, Binh Q.; Hoekstra, Philip] Catholic Univ Amer, Washington, DC 20064 USA. [Landa, Joseph] Briartek Inc, Alexandria, VA USA. [Hoekstra, Philip] Therma Scan Inc, Birmingham, MI USA. [Dillard, John T.] Naval Post Grad Sch, Acquisit Dept, Monterey, CA USA. [Krapels, Keith A.] Univ Memphis, Memphis, TN 38152 USA. [Chu, Kai-Dee] DHS S&TD, Washington, DC USA. RP Szu, H (reprint author), Catholic Univ Amer, Washington, DC 20064 USA. NR 36 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 978-1-62841-612-1 J9 PROC SPIE PY 2015 VL 9496 AR 94960G DI 10.1117/12.2176082 PG 14 WC Computer Science, Artificial Intelligence; Engineering, Electrical & Electronic; Optics SC Computer Science; Engineering; Optics GA BD1LB UT WOS:000358125000014 ER PT S AU Baker, DP AF Baker, Deane-Peter BE Lovell, DW TI Ethics or Politics? The Palmer Commission Report on the 2010 Gaza Flotilla Incident SO INVESTIGATING OPERATIONAL INCIDENTS IN A MILITARY CONTEXT: LAW, JUSTICE, POLITICS SE International Humanitarian Law Series LA English DT Article; Book Chapter C1 [Baker, Deane-Peter] UNSW Canberra, Appl Eth, Canberra, ACT, Australia. [Baker, Deane-Peter] US Naval Acad, Dept Leadership Eth & Law, Eth, Annapolis, MD 21402 USA. [Baker, Deane-Peter] Univ KwaZulu Natal, Eth, Durban, South Africa. [Baker, Deane-Peter] US Naval Acad, FEIWS, Annapolis, MD 21402 USA. [Baker, Deane-Peter] Univ KwaZulu Natal, Strateg Studies Grp, Durban, South Africa. [Baker, Deane-Peter] South African Army Reserve, Durban, South Africa. [Baker, Deane-Peter] South African Army Future Vis Res Grp, Durban, South Africa. [Baker, Deane-Peter] Umvoti Mounted Rifles, Leader Grp, Johannesburg, South Africa. [Baker, Deane-Peter] Eth Soc South Africa, Zurich, Switzerland. [Baker, Deane-Peter] Fdn Def Democracies, New York, NY USA. RP Baker, DP (reprint author), UNSW Canberra, Appl Eth, Canberra, ACT, Australia. NR 0 TC 0 Z9 0 U1 0 U2 1 PU BRILL PI PA LEIDEN PA PO BOX 9000, NL-2300 PA LEIDEN, NETHERLANDS SN 1389-6776 BN 978-90-04-27710-6; 978-90-04-27709-0 J9 INT HUMANIT LAW PY 2015 VL 43 BP 123 EP 145 PG 23 WC Law SC Government & Law GA BC8XF UT WOS:000356160800008 ER PT S AU Brandsema, MJ Narayanan, RN Lanzagorta, M AF Brandsema, Matthew J. Narayanan, Ram N. Lanzagorta, Marco BE Ranney, KI Doerry, A Gilbreath, GC Hawley, CT TI Range detection using entangled optical photons SO RADAR SENSOR TECHNOLOGY XIX; AND ACTIVE AND PASSIVE SIGNATURES VI SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Radar Sensor Technology XIX and Active and Passive Signatures VI CY APR 20-23, 2015 CL Baltimore, MD SP SPIE DE Quantum Radar; Entanglement; SPDC; Quantum LIDAR ID SYSTEMS AB Quantum radar is an emerging field that shows a lot of promise in providing significantly improved resolution compared to its classical radar counterpart. The key to this kind of resolution lies in the correlations created from the entanglement of the photons being used. Currently, the technology available only supports quantum radar implementation and validation in the optical regime, as opposed to the microwave regime, because microwave photons have very low energy compared to optical photons. Furthermore, there currently do not exist practical single photon detectors and generators in the microwave spectrum. Viable applications in the optical regime include deep sea target detection and high resolution detection in space. In this paper, we propose a conceptual architecture of a quantum radar which uses entangled optical photons based on Spontaneous Parametric Down Conversion (SPDC) methods. After the entangled photons are created and emerge from the crystal, the idler photon is detected very shortly thereafter. At the same time, the signal photon is sent out towards the target and upon its reflection will impinge on the detector of the radar. From these two measurements, correlation data processing is done to obtain the distance of the target away from the radar. Various simulations are then shown to display the resolution that is possible. C1 [Brandsema, Matthew J.; Narayanan, Ram N.] Penn State Univ, Dept Elect Engn, University Pk, PA 16802 USA. [Lanzagorta, Marco] Naval Res Lab, Washington, DC 20375 USA. RP Brandsema, MJ (reprint author), Penn State Univ, Dept Elect Engn, University Pk, PA 16802 USA. NR 10 TC 0 Z9 0 U1 3 U2 7 PU SPIE-INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA SN 0277-786X BN 978-1-62841-577-3 J9 PROC SPIE PY 2015 VL 9461 AR 946111 DI 10.1117/12.2176756 PG 10 WC Engineering, Electrical & Electronic; Optics; Telecommunications SC Engineering; Optics; Telecommunications GA BD1LU UT WOS:000358140900033 ER PT S AU Land, P Roeder, J Robinson, D Majumdar, AK AF Land, Phillip Roeder, James Robinson, Dennis Majumdar, Arun K. BE Ranney, KI Doerry, A Gilbreath, GC Hawley, CT TI Application of a Laser Doppler Vibrometer for Air-Water to Subsurface Signature Detection SO RADAR SENSOR TECHNOLOGY XIX; AND ACTIVE AND PASSIVE SIGNATURES VI SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Radar Sensor Technology XIX; and Active and Passive Signatures VI CY APR 20-23, 2015 CL Baltimore, MD SP SPIE DE Laser Doppler Vibrometer; air-water interface; underwater communications; optical communications; random media; optical-acoustic device; acousto-optic sensing ID REMOTE AB There is much interest in detecting a target and optical communications from an airborne platform to a platform submerged under water. Accurate detection and communications between underwater and aerial platforms would increase the capabilities of surface, subsurface, and air, manned and unmanned vehicles engaged in oversea and undersea activities. The technique introduced in this paper involves a Laser Doppler Vibrometer (LDV) for acousto-optic sensing for detecting acoustic information propagated towards the water surface from a submerged platform inside a 12 gallon water tank. The LDV probes and penetrates the water surface from an aerial platform to detect air-water surface interface vibrations caused by an amplifier to a speaker generating a signal generated from underneath the water surface (varied water depth from 1 '' to 8 ''), ranging between 50Hz to 5kHz. As a comparison tool, a hydrophone was used simultaneously inside the water tank for recording the acoustic signature of the signal generated between 50Hz to 5kHz. For a signal generated by a submerged platform, the LDV can detect the signal. The LDV detects the signal via surface perturbations caused by the impinging acoustic pressure field; proving a technique of transmitting/sending information/messages from a submerged platform acoustically to the surface of the water and optically receiving the information/message using the LDV, via the Doppler Effect, allowing the LDV to become a high sensitivity optical-acoustic device. The technique developed has much potential usage in commercial oceanography applications. The present work is focused on the reception of acoustic information from an object located underwater. C1 [Land, Phillip; Roeder, James; Robinson, Dennis; Majumdar, Arun K.] Naval Air Warfare Ctr, Weap Div, China Lake, CA 93555 USA. RP Land, P (reprint author), Naval Air Warfare Ctr, Weap Div, China Lake, CA 93555 USA. EM arun.majumdar@navy.mil NR 14 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 978-1-62841-577-3 J9 PROC SPIE PY 2015 VL 9461 AR 94611H DI 10.1117/12.2175590 PG 14 WC Engineering, Electrical & Electronic; Optics; Telecommunications SC Engineering; Optics; Telecommunications GA BD1LU UT WOS:000358140900048 ER PT S AU Lanzagorta, M AF Lanzagorta, Marco BE Ranney, KI Doerry, A Gilbreath, GC Hawley, CT TI Low-Brightness Quantum Radar SO RADAR SENSOR TECHNOLOGY XIX; AND ACTIVE AND PASSIVE SIGNATURES VI SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Radar Sensor Technology XIX; and Active and Passive Signatures VI CY APR 20-23, 2015 CL Baltimore, MD SP SPIE DE Quantum Radar; Quantum Sensing; Quantum Sensors; Quantum Information; Stealth Sensing AB One of the major scientific thrusts from recent years has been to try to harness quantum phenomena to dramatically increase the performance of a wide variety of classical information processing devices. These advances in quantum information science have had a considerable impact on the development of standoff sensors such as quantum radar. In this paper we analyze the theoretical performance of low-brightness quantum radar that uses entangled photon states. We use the detection error probability as a measure of sensing performance and the interception error probability as a measure of stealthiness. We compare the performance of quantum radar against a coherent light sensor (such as lidar) and classical radar. In particular, we restrict our analysis to the performance of low-brightness standoff sensors operating in a noisy environment. We show that, compared to the two classical standoff sensing devices, quantum radar is stealthier, more resilient to jamming, and more accurate for the detection of low reflectivity targets. C1 Naval Res Lab, Washington, DC 20375 USA. RP Lanzagorta, M (reprint author), Naval Res Lab, Washington, DC 20375 USA. EM marco.lanzagorta@nrl.navy.mil NR 54 TC 3 Z9 3 U1 4 U2 14 PU SPIE-INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA SN 0277-786X BN 978-1-62841-577-3 J9 PROC SPIE PY 2015 VL 9461 AR 946113 DI 10.1117/12.2177577 PG 25 WC Engineering, Electrical & Electronic; Optics; Telecommunications SC Engineering; Optics; Telecommunications GA BD1LU UT WOS:000358140900035 ER PT S AU Lanzagorta, M Venegas-Andraca, S AF Lanzagorta, Marco Venegas-Andraca, Salvador BE Ranney, KI Doerry, A Gilbreath, GC Hawley, CT TI Algorithmic Analysis of Quantum Radar Cross Sections SO RADAR SENSOR TECHNOLOGY XIX; AND ACTIVE AND PASSIVE SIGNATURES VI SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Radar Sensor Technology XIX; and Active and Passive Signatures VI CY APR 20-23, 2015 CL Baltimore, MD SP SPIE DE Quantum Radar; Quantum Sensing; Quantum Sensors; Quantum Information; Stealth Sensing; D-Wave; Quantum Annealing; Radar Cross Sections AB Side lobe structures on classical radar cross section graphs are a consequence of discontinuities in the surface currents. In contrast, quantum radar theory states that sidelobe structures on quantum radar cross section graphs are due to quantum interference. Moreover, it is conjectured that quantum sidelobe structures may be used to detect targets oriented off the specular direction. Because of the high data bandwidth expected from quantum radar, it may be necessary to use sophisticated quantum signal analysis algorithms to determine the presence of stealth targets through the sidelobe structures. In this paper we introduce three potential quantum algorithmic techniques to compute classical and quantum radar cross sections. It is our purpose to develop a computer science-oriented tool for further physical analysis of quantum radar models as well as applications of quantum radar technology in various fields. C1 [Lanzagorta, Marco] Naval Res Lab, Washington, DC 20375 USA. [Venegas-Andraca, Salvador] Tecnol Monterrey Escuela Ciencias & Ingn, Mexico City, Estado De Mexic, Mexico. RP Lanzagorta, M (reprint author), Naval Res Lab, Washington, DC 20375 USA. EM marco.lanzagorta@nrl.navy.mil; salvador.venegas-andraca@keble.oxon.org NR 23 TC 1 Z9 1 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 978-1-62841-577-3 J9 PROC SPIE PY 2015 VL 9461 AR 946112 DI 10.1117/12.2177238 PG 8 WC Engineering, Electrical & Electronic; Optics; Telecommunications SC Engineering; Optics; Telecommunications GA BD1LU UT WOS:000358140900034 ER PT S AU Lanzagorta, M Uhlmann, J AF Lanzagorta, Marco Uhlmann, Jeffrey BE Ranney, KI Doerry, A Gilbreath, GC Hawley, CT TI Space-Based Quantum Sensing for Low-Power Detection of Small Targets SO RADAR SENSOR TECHNOLOGY XIX; AND ACTIVE AND PASSIVE SIGNATURES VI SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Radar Sensor Technology XIX and Active and Passive Signatures VI CY APR 20-23, 2015 CL Baltimore, MD SP SPIE DE Quantum Radar; Quantum Sensing; Quantum Sensors; Quantum Information; Earth Defense; Missile Defense; Space Debris AB Correlations between entangled quantum states can be exploited to dramatically improve detection sensitivity under certain conditions. In this paper we argue that space-based surveillance ideally satisfies these conditions and represents a practical application of quantum sensing for the detection of near-earth objects which threaten spacecraft or terrestrial life. C1 [Lanzagorta, Marco] Naval Res Lab, Washington, DC 20375 USA. [Uhlmann, Jeffrey] Univ Missouri, Dept Comp Sci, Columbia, MO 65211 USA. RP Lanzagorta, M (reprint author), Naval Res Lab, Washington, DC 20375 USA. EM marco.lanzagorta@nrl.navy.mil; uhlmannj@missouri.edu NR 18 TC 0 Z9 0 U1 2 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 978-1-62841-577-3 J9 PROC SPIE PY 2015 VL 9461 AR 946115 DI 10.1117/12.2183326 PG 7 WC Engineering, Electrical & Electronic; Optics; Telecommunications SC Engineering; Optics; Telecommunications GA BD1LU UT WOS:000358140900037 ER PT S AU Martin, K Crowder, T Feng, J AF Martin, Keye Crowder, Tanner Feng, Johnny BE Ranney, KI Doerry, A Gilbreath, GC Hawley, CT TI Quantum Error Reduction Without Coding SO RADAR SENSOR TECHNOLOGY XIX; AND ACTIVE AND PASSIVE SIGNATURES VI SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Radar Sensor Technology XIX and Active and Passive Signatures VI CY APR 20-23, 2015 CL Baltimore, MD SP SPIE DE Quantum Channel; Capacity; Information Theory AB There are an infinite number of ways to represent a classical bit with a quantum state. By taking advantage of this fact, one can develop methods for reducing error rates in computation, communication and sensing that do not require the use of quantum codes. But how well do they work? In this paper, we give results that can be used to quantify the improvement offered by such methods. C1 [Martin, Keye; Crowder, Tanner; Feng, Johnny] Naval Res Lab, Washington, DC 20375 USA. RP Martin, K (reprint author), Naval Res Lab, Washington, DC 20375 USA. NR 4 TC 0 Z9 0 U1 1 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 978-1-62841-577-3 J9 PROC SPIE PY 2015 VL 9461 AR 946114 DI 10.1117/12.2183321 PG 4 WC Engineering, Electrical & Electronic; Optics; Telecommunications SC Engineering; Optics; Telecommunications GA BD1LU UT WOS:000358140900036 ER PT J AU Freeman, M AF Freeman, Michael TI A High Price: The Triumphs and Failures of Israeli Counterterrorism SO TERRORISM AND POLITICAL VIOLENCE LA English DT Book Review C1 [Freeman, Michael] Naval Postgrad Sch, Monterey, CA 93943 USA. RP Freeman, M (reprint author), Naval Postgrad Sch, Monterey, CA 93943 USA. NR 1 TC 0 Z9 0 U1 1 U2 2 PU ROUTLEDGE JOURNALS, TAYLOR & FRANCIS LTD PI ABINGDON PA 4 PARK SQUARE, MILTON PARK, ABINGDON OX14 4RN, OXFORDSHIRE, ENGLAND SN 0954-6553 EI 1556-1836 J9 TERROR POLIT VIOLENC JI Terror. Polit. Violence PY 2015 VL 27 IS 3 BP 593 EP 594 DI 10.1080/09546553.2015.1055973 PG 2 WC International Relations; Political Science SC International Relations; Government & Law GA CN3CH UT WOS:000358300900013 ER PT S AU Furstenberg, R Kendziora, CA Papantonakis, MR Nguyen, V Byers, J McGill, RA AF Furstenberg, Robert Kendziora, Christopher A. Papantonakis, Michael R. Viet Nguyen Byers, Jeff McGill, R. Andrew BE Fountain, AW TI Trace explosives detection using photo-thermal infrared imaging spectroscopy (PT-IRIS): theory, modeling and detection algorithms SO CHEMICAL, BIOLOGICAL, RADIOLOGICAL, NUCLEAR, AND EXPLOSIVES (CBRNE) SENSING XVI SE Proceedings of SPIE LA English DT Proceedings Paper CT 16th Meeting of the Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing part of the SPIE Defense, Security plus Sensing Symposium CY APR 21-23, 2015 CL Baltimore, MD SP SPIE DE Trace explosives; stand-off detection; photo-thermal; quantum cascade lasers; infrared imaging; modeling; synthetic data; detection algorithm AB We are developing a technology for stand-off detection based on photo-thermal infrared imaging spectroscopy (PT-IRIS). In this approach, one or more infrared (IR) quantum cascade lasers are tuned to strong absorption bands in the analytes and directed at the sample while an IR focal plane array is used to image the subsequent thermal emissions. In this paper we present recent advances in the theory and numerical modeling of photo-thermal imaging and spectroscopy of particulates on flat substrates. We compare the theoretical models with experimental data taken on our mobile cart-based PT-IRIS system. Synthetic data of the photo-thermal response was calculated for a wide range of analytes, substrates, particle sizes and analyte mass loadings using their known thermo-physical and optical properties. These synthetic data sets can now be generated quickly and were used to accelerate the development of detection algorithms. The performance of detection algorithms will also be discussed. C1 [Furstenberg, Robert; Kendziora, Christopher A.; Papantonakis, Michael R.; Viet Nguyen; Byers, Jeff; McGill, R. Andrew] Naval Res Lab, Washington, DC 20375 USA. RP Furstenberg, R (reprint author), Naval Res Lab, 4555 Overlook Ave SW, Washington, DC 20375 USA. EM robert.furstenberg@nrl.navy.mil NR 9 TC 3 Z9 3 U1 1 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 978-1-62841-571-1 J9 PROC SPIE PY 2015 VL 9455 AR 94550I DI 10.1117/12.2177270 PG 12 WC Engineering, Electrical & Electronic; Optics; Physics, Applied SC Engineering; Optics; Physics GA BD0WG UT WOS:000357744700016 ER PT S AU Furstenberg, R Nguyen, V Fischer, T Abrishami, T Papantonakis, M Kendziora, C Mott, DR McGill, RA AF Furstenberg, Robert Viet Nguyen Fischer, Thomas Abrishami, Tara Papantonakis, Michael Kendziora, Chris Mott, David R. McGill, R. Andrew BE Fountain, AW TI Advances in Sublimation Studies for Particles of Explosives SO CHEMICAL, BIOLOGICAL, RADIOLOGICAL, NUCLEAR, AND EXPLOSIVES (CBRNE) SENSING XVI SE Proceedings of SPIE LA English DT Proceedings Paper CT 16th Meeting of the Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing part of the SPIE Defense, Security plus Sensing Symposium CY APR 21-23, 2015 CL Baltimore, MD SP SPIE DE Trace explosives detection; 2,4-dintrotolene; particles; sublimation; particle field; areal density; aiflow velocity; fingerprint; sieving; test coupon; particle image analysis ID FINGERPRINT FORMATION; DETECTION SYSTEMS; THERMAL PLUME; AIR-FLOW; RDX; THERMOGRAVIMETRY; STANDARDS; TRANSPORT; DYNAMICS; BODY AB When handling explosives, or related surfaces, the hands routinely become contaminated with particles of explosives and related materials. Subsequent contact with a solid surface results in particle crushing and deposition. These particles provide an evidentiary trail which is useful for security applications. As such, the opto-physico-chemical characteristics of these particles are critical to trace explosives detection applications in DOD or DHS arenas. As the persistence of these particles is vital to their forensic exploitation, it is important to understand which factors influence their persistence. The longevity or stability of explosives particles on a substrate is a function of several environmental parameters or particle properties including: Vapor pressure, particle geometry, airflow, particle field size, substrate topography, humidity, reactivity, adlayers, admixtures, particle areal density, and temperature. In this work we deposited particles of 2,4-dinitrotoluene on standard microscopy glass slides by particle sieving and studied their sublimation as a function of airflow velocity, areal particle density and particle field size. Analysis of 2D microscopic images was used to compute and track particle size and geometrical characteristics. The humidity, temperature and substrate type were kept constant for each experiment. A custom airflow cell, using standard microscopy glass slide, allowed in-situ photomicroscopy. Areal particle densities and airflow velocities were selected to provide relevant loadings and flow velocities for a range of potential applications. For a chemical of interest, we define the radial sublimation velocity (RSV) for the equivalent sphere of a particle as the parameter to characterize the sublimation rate. The RSV is a useful parameter because it is independent of particle size. The sublimation rate for an ensemble of particles was found to significantly depend on airflow velocity, the areal density of the particles, and the particle field size. To compare sublimation studies these parameters must be known. C1 [Furstenberg, Robert; Viet Nguyen; Abrishami, Tara; Papantonakis, Michael; Kendziora, Chris; Mott, David R.; McGill, R. Andrew] US Naval Res Lab, Washington, DC 20375 USA. [Fischer, Thomas] Fed Off Bundeswehr Equipment, IT & In Serv Support, D-56073 Koblenz, Germany. RP McGill, RA (reprint author), US Naval Res Lab, Washington, DC 20375 USA. EM robert.furstenberg@nrl.navy.mil; mcgill@nrl.navy.mil OI Mott, David/0000-0002-7863-456X NR 21 TC 1 Z9 1 U1 0 U2 7 PU SPIE-INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA SN 0277-786X BN 978-1-62841-571-1 J9 PROC SPIE PY 2015 VL 9455 AR 94550R DI 10.1117/12.2177390 PG 12 WC Engineering, Electrical & Electronic; Optics; Physics, Applied SC Engineering; Optics; Physics GA BD0WG UT WOS:000357744700023 ER PT S AU Johnson, K Minor, C AF Johnson, Kevin Minor, Christian BE Fountain, AW TI Non-specific Sensor Arrays for Chemical Detection SO CHEMICAL, BIOLOGICAL, RADIOLOGICAL, NUCLEAR, AND EXPLOSIVES (CBRNE) SENSING XVI SE Proceedings of SPIE LA English DT Proceedings Paper CT 16th Meeting of the Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing part of the SPIE Defense, Security plus Sensing Symposium CY APR 21-23, 2015 CL Baltimore, MD SP SPIE DE multisensor systems; data fusion; interferants; open-world sensing ID CHEMISTRY AB Non-specific chemical sensor arrays have been the subject of considerable research efforts over the past thirty years with the idea that, by analogy to vertebrate olfaction, they are potentially capable of rendering complex chemical assessments with relatively modest logistical footprints. However, the actual implementation of such devices in challenging "real world" scenarios has arguably continued to fall short of these expectations. This work examines the inherent limitations of such devices for complex chemical sensing scenarios, placing them on a continuum between simple univariate sensors and complex multivariate analytical instrumentation and analyzing their utility in general-purpose chemical detection and accurate chemical sensing in the presence of unknown "unknowns." Results with simulated and acquired data sets are presented with discussion of the implications in development of chemical sensor arrays suitable for complex scenarios. C1 [Johnson, Kevin] Naval Res Lab, Washington, DC 20375 USA. [Minor, Christian] Nova Res Inc, Alexandria, VA 22308 USA. RP Johnson, K (reprint author), Naval Res Lab, Washington, DC 20375 USA. NR 15 TC 0 Z9 0 U1 3 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 978-1-62841-571-1 J9 PROC SPIE PY 2015 VL 9455 AR 94550G DI 10.1117/12.2177392 PG 8 WC Engineering, Electrical & Electronic; Optics; Physics, Applied SC Engineering; Optics; Physics GA BD0WG UT WOS:000357744700014 ER PT S AU Wensman, JD Guardala, NA Mathur, VK Currie, JF AF Wensman, Johnathan D. Guardala, Noel A. Mathur, Veerendra K. Currie, John F. BE Fountain, AW TI Neutron spectroscopy using III-V semiconductor scintillators SO CHEMICAL, BIOLOGICAL, RADIOLOGICAL, NUCLEAR, AND EXPLOSIVES (CBRNE) SENSING XVI SE Proceedings of SPIE LA English DT Proceedings Paper CT 16th Meeting of the Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing part of the SPIE Defense, Security plus Sensing Symposium CY APR 21-23, 2015 CL Baltimore, MD SP SPIE DE Neutron spectroscopy; Proton Recoil; III-V Semiconductor Scintillator ID INDIUM-PHOSPHIDE; GAN AB The feasibility of a hydrogen implanted, direct band gap III-V semiconductors as new scintillators for fast neutron spectroscopy using the proton-recoil technique has been investigated. Direct band gap semiconductors have high radiative efficiency and have the potential of high photon yield per unit energy deposited, which are desirable features for a scintillator used for pulse height analysis. In this paper we present our computational results obtained using SRIM software for select materials. The expected depth profiles of implanted hydrogen ions have been applied to the n-p elastic recoil process in both InP and GaN. It is shown that, under ideal conditions, neutron irradiation of hydrogen implanted InP and GaN creates proton recoil scintillation with photon output being directly proportional to incoming neutron energy. It has been found that for the desirable dynamic range of neutron energies, loss to phonon creation in the lattice is negligible compared to energy used in electron excitation which results in the linear response in energy versus pulse height spectrum. C1 [Wensman, Johnathan D.; Guardala, Noel A.; Mathur, Veerendra K.] Naval Surface Warfare Ctr, Carderock Div, West Bethesda, MD 20817 USA. [Wensman, Johnathan D.; Currie, John F.] Georgetown Univ, Dept Phys, Washington, DC 20057 USA. RP Wensman, JD (reprint author), Naval Surface Warfare Ctr, Carderock Div, 9500 MacArthur Blvd, West Bethesda, MD 20817 USA. RI Currie, John/A-9717-2011 OI Currie, John/0000-0001-8014-9128 NR 15 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 978-1-62841-571-1 J9 PROC SPIE PY 2015 VL 9455 AR 945502 DI 10.1117/12.2176349 PG 7 WC Engineering, Electrical & Electronic; Optics; Physics, Applied SC Engineering; Optics; Physics GA BD0WG UT WOS:000357744700001 ER PT S AU Singh, S Sherwin, G Hoffman, R Grocholsky, B Grabe, V Nalbone, S Chamberlain, L Spiker, S Bergerman, M Wilkinson, C Findlay, D AF Singh, Sanjiv Sherwin, Gary Hoffman, Regis Grocholsky, Benjamin Grabe, Volker Nalbone, Samuel Chamberlain, Lyle Spiker, Spencer Bergerman, Marcel Wilkinson, Colin Findlay, David BE SandersReed, J Arthur, JJ TI Sensor Modeling for Precision Ship-Relative Navigation in Degraded Visual Environment Conditions SO DEGRADED VISUAL ENVIRONMENTS: ENHANCED, SYNTHETIC, AND EXTERNAL VISION SOLUTIONS 2015 SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Degraded Visual Environments - Enhanced, Synthetic, and External Vision Solutions CY APR 21, 2015 CL Baltimore, MD SP SPIE DE Precision ship-relative navigation; Unmanned air vehicles; Sensor modeling; Aircraft navigation AB The Navy and Marine Corps will increasingly need to operate unmanned air vehicles from ships at sea. Fused multi-sensor systems are desirable to ensure these operations are highly reliable under the most demanding at-sea conditions, particularly in degraded visual environments. The US Navy Sea-Based Automated Launch & Recovery System (SALRS) program aims at enabling automated/semi-automated launch and recovery of sea-based, manned and unmanned, fixed-and rotary-wing naval aircraft, and to utilize automated or pilot-augmented flight mechanics for carefree shipboard operations. This paper describes the goals and current results of SALRS Phase 1, which aims at understanding the capabilities and limitations of various sensor types through sensor characterization, modeling, and simulation, and assessing how the sensor models can be used for aircraft navigation to provide sufficient accuracy, integrity, continuity, and availability across all anticipated maritime conditions. C1 [Singh, Sanjiv; Sherwin, Gary; Hoffman, Regis; Grocholsky, Benjamin; Grabe, Volker; Nalbone, Samuel; Chamberlain, Lyle; Spiker, Spencer; Bergerman, Marcel] Near Earth Auton, Pittsburgh, PA 15213 USA. [Wilkinson, Colin; Findlay, David] Naval Air Syst Command, Patuxent River, MD 20670 USA. RP Singh, S (reprint author), Near Earth Auton, 5001 Baum Blvd,Suite 750, Pittsburgh, PA 15213 USA. EM marcel@nearearth.aero NR 10 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 978-1-62841-587-2 J9 PROC SPIE PY 2015 VL 9471 AR 94710G DI 10.1117/12.2176533 PG 13 WC Engineering, Electrical & Electronic; Optics SC Engineering; Optics GA BD1DI UT WOS:000357945100012 ER PT S AU Bayya, S Gibson, D Nuygen, V Sanghera, J Kotov, M Drake, G Deegan, J Lindberg, G AF Bayya, Shyam Gibson, Daniel Vinh Nuygen Sanghera, Jasbinder Kotov, Mikhail Drake, Gryphon Deegan, John Lindberg, George BE Andresen, BF Fulop, GF Hanson, CM Norton, PR TI Design and fabrication of multispectral optics using expanded glass map SO INFRARED TECHNOLOGY AND APPLICATIONS XLI SE Proceedings of SPIE LA English DT Proceedings Paper CT 41st Conference on Infrared Technology and Applications CY APR 20-23, 2015 CL Baltimore, MD SP SPIE DE SWIR; MWIR; LWIR; IR glass; multispectral optics AB As the desire to have compact multispectral imagers in various DoD platforms is growing, the dearth of multispectral optics is widely felt. With the limited number of material choices for optics, these multispectral imagers are often very bulky and impractical on several weight sensitive platforms. To address this issue, NRL has developed a large set of unique infrared glasses that transmit from 0.9 to > 14 mu m in wavelength and expand the glass map for multispectral optics with refractive indices from 2.38 to 3.17. They show a large spread in dispersion (Abbe number) and offer some unique solutions for multispectral optics designs. The new NRL glasses can be easily molded and also fused together to make bonded doublets. A Zemax compatible glass file has been created and is available upon request. In this paper we present some designs, optics fabrication and imaging, all using NRL materials. C1 [Bayya, Shyam; Gibson, Daniel; Vinh Nuygen; Sanghera, Jasbinder] Naval Res Lab, Washington, DC 20375 USA. [Kotov, Mikhail] Sotera Def Solut, Herndon, VA USA. [Drake, Gryphon] Univ Res Fdn, Greenbelt, MD USA. [Deegan, John; Lindberg, George] Rochester Precis Opt, W Henrietta, NY USA. RP Bayya, S (reprint author), Naval Res Lab, Code 5620, Washington, DC 20375 USA. NR 9 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 978-1-62841-567-4 J9 PROC SPIE PY 2015 VL 9451 AR 94511N DI 10.1117/12.2177289 PG 7 WC Engineering, Electrical & Electronic; Optics; Physics, Applied SC Engineering; Optics; Physics GA BD0QG UT WOS:000357568500051 ER PT S AU Deegan, J Walsh, K Lindberg, G Benson, R Gibson, D Bayya, S Sanghera, J Stover, E AF Deegan, J. Walsh, K. Lindberg, G. Benson, R. Gibson, D. Bayya, S. Sanghera, J. Stover, E. BE Andresen, BF Fulop, GF Hanson, CM Norton, PR TI Index change of chalcogenide materials from precision glass molding processes SO INFRARED TECHNOLOGY AND APPLICATIONS XLI SE Proceedings of SPIE LA English DT Proceedings Paper CT 41st Conference on Infrared Technology and Applications CY APR 20-23, 2015 CL Baltimore, MD SP SPIE DE Index of Refraction; Glass molding; Optical design; Chalcogenide; Infrared; Refractometry AB With the increase in demand for infrared optics for thermal applications and the use of glass molding of chalcogenide materials to support these higher volume optical designs, an investigation of changes to the optical properties of these materials is required. Typical precision glass molding requires specific thermal conditions for proper lens molding of any type of optical glass. With these conditions a change (reduction) of optical index occurs after molding of all oxide glass types and it is presumed that a similar behavior will happen with chalcogenide based materials. We will discuss the effects of a typical molding thermal cycle for use with commercially and newly developed chalcogenide materials and show results of index variation from nominally established material data. C1 [Deegan, J.; Walsh, K.; Lindberg, G.; Benson, R.] Rochester Precis Opt, W Henrietta, NY 14586 USA. [Gibson, D.; Bayya, S.; Sanghera, J.] Naval Res Lab, Washington, DC USA. [Stover, E.] M3 Measurement Solut Inc, Escondido, CA 92029 USA. RP Deegan, J (reprint author), Rochester Precis Opt, W Henrietta, NY 14586 USA. NR 1 TC 1 Z9 1 U1 3 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 978-1-62841-567-4 J9 PROC SPIE PY 2015 VL 9451 AR 94511R DI 10.1117/12.2176608 PG 9 WC Engineering, Electrical & Electronic; Optics; Physics, Applied SC Engineering; Optics; Physics GA BD0QG UT WOS:000357568500055 ER PT S AU Gibson, D Bayya, S Nguyen, V Sanghera, J Kotov, M Drake, G AF Gibson, Daniel Bayya, Shyam Vinh Nguyen Sanghera, Jas Kotov, Mikhail Drake, Gryphon BE Andresen, BF Fulop, GF Hanson, CM Norton, PR TI GRIN Optics for Multispectral Infrared Imaging SO INFRARED TECHNOLOGY AND APPLICATIONS XLI SE Proceedings of SPIE LA English DT Proceedings Paper CT 41st Conference on Infrared Technology and Applications CY APR 20-23, 2015 CL Baltimore, MD SP SPIE DE IR; chalcogenide glass; IR lens; molded optics; LWIR; multispectral optics; optical design; finite-element modeling; IR imaging AB Graded index (GRIN) optics offer potential for both weight savings and increased performance but have so far been limited to visible and NIR bands (wavelengths shorter than about 0.9 mu m). NRL is developing a capability to extend GRIN optics to longer wavelengths in the infrared by exploiting diffused IR transmitting chalcogenide glasses. These IR-GRIN lenses are compatible with all IR wavebands (SWIR, MWIR and LWIR) and can be used alongside conventional wideband materials. Traditional multiband IR imagers require many elements for correction of chromatic aberrations, making them large and heavy and not well-suited for weight sensitive platforms. IR-GRIN optical elements designed with simultaneous optical power and chromatic correction can reduce the number of elements in wideband systems, making multi-band IR imaging practical for platforms including small UAVs and soldier handheld, helmet or weapon mounted cameras. The IR-GRIN lens technology, design space and anti-reflection considerations are presented in this paper. C1 [Gibson, Daniel; Bayya, Shyam; Vinh Nguyen; Sanghera, Jas] Naval Res Lab, Washington, DC 20375 USA. [Kotov, Mikhail] Sotera Def Solut, Herndon, VA 20171 USA. [Drake, Gryphon] Univ Res Fdn, Greenbelt, MD USA. RP Gibson, D (reprint author), Naval Res Lab, Code 5620, Washington, DC 20375 USA. NR 7 TC 1 Z9 1 U1 1 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 978-1-62841-567-4 J9 PROC SPIE PY 2015 VL 9451 AR 94511P DI 10.1117/12.2177136 PG 7 WC Engineering, Electrical & Electronic; Optics; Physics, Applied SC Engineering; Optics; Physics GA BD0QG UT WOS:000357568500053 ER PT S AU Lindberg, GP Deegan, J Benson, R Berger, AJ Linden, JJ Gibson, D Bayya, S Sanghera, J Nguyen, V Kotov, M AF Lindberg, G. P. Deegan, J. Benson, R. Berger, A. J. Linden, J. J. Gibson, D. Bayya, S. Sanghera, J. Nguyen, V Kotov, M. BE Andresen, BF Fulop, GF Hanson, CM Norton, PR TI Methods of both destructive and non-destructive metrology of GRIN optical elements SO INFRARED TECHNOLOGY AND APPLICATIONS XLI SE Proceedings of SPIE LA English DT Proceedings Paper CT 41st Conference on Infrared Technology and Applications CY APR 20-23, 2015 CL Baltimore, MD SP SPIE DE Chalcogenide; Glass; Metrology; Gradient Index Optics (GRIN); Lenses ID REFRACTIVE-INDEX PROFILE AB Gradient index (GRIN) optics have been an up-and-coming tool in the world of optics. By combining an index gradient with a surface curvature the number of optical components for a lens system can often be greatly reduced. Their use in the realm of infra-red is only becoming realized as new efforts are being developed to create materials that are suitable and mutually compatible for these optical components. The materials being pursued are the chalcogenide based glasses. Small changes in elemental concentrations in these glasses can have significant effects on physical and optical properties. The commonality between these glasses and their widely different optical properties make them prime candidates for GRIN applications. Traditional methods of metrology are complicated by the combination of the GRIN and the curvature of the element. We will present preliminary data on both destructive and non-destructive means of measuring the GRIN profile. Non-destructive methods may require inference of index through material properties, by careful measurement of the individual materials going into the GRIN optic, followed by, mapping measurements of the GRIN surface. Methods to be pursued are micro Raman mapping and CT scanning. By knowing the properties of the layers and accurately mapping the interfaces between the layers we should be able to back out the index profile of the GRIN optic and then confirm the profile by destructive means. C1 [Lindberg, G. P.; Deegan, J.; Benson, R.] Rochester Precis Opt, W Henrietta, NY 14586 USA. [Lindberg, G. P.] SUNY Buffalo, Dept Phys, Buffalo, NY 14260 USA. [Berger, A. J.; Linden, J. J.] Univ Rochester, Inst Opt, Rochester, NY 14627 USA. [Gibson, D.; Bayya, S.; Sanghera, J.; Nguyen, V] Naval Res Lab, Washington, DC USA. [Kotov, M.] Sotera Def Solut, Annapolis Jct, MD USA. RP Lindberg, GP (reprint author), Rochester Precis Opt, W Henrietta, NY 14586 USA. NR 9 TC 2 Z9 2 U1 2 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 978-1-62841-567-4 J9 PROC SPIE PY 2015 VL 9451 AR 94511S DI 10.1117/12.2176615 PG 6 WC Engineering, Electrical & Electronic; Optics; Physics, Applied SC Engineering; Optics; Physics GA BD0QG UT WOS:000357568500056 ER PT S AU Barh, A Varshney, RK Pal, BP Sanghera, J Shaw, LB AF Barh, Ajanta Varshney, R. K. Pal, B. P. Sanghera, J. Shaw, L. B. BE Chakraborty, R Bhattacharya, K TI Temperature assisted band-gap engineering in all-solid chalcogenide holey fiber for mid-IR application SO INTERNATIONAL CONFERENCE ON OPTICS AND PHOTONICS 2015 SE Proceedings of SPIE LA English DT Proceedings Paper CT International Conference on Optics and Photonics (ICOP) CY FEB 20-22, 2015 CL Kolkata, INDIA SP Univ Calcutta, Govt India, Dept Sci & Technol, Govt India, Def Res & Dev Org DE all-solid photonic band-gap fiber; mid-IR spectral range; chalcogenide glass ID PHOTONIC BANDGAP; WAVE-GUIDES; EMISSION AB Presence of photonic band-gap (PBG) in an all-solid microstructured optical fiber (MOF), made of two fabrication compatible chalcogenide (Ch) glasses is theoretically investigated for potential application in the functional mid-infrared (IR) wavelength range. Cross-section of the MOF is formed by assuming periodically arranged wavelength scale circular air holes in a hexagonal pattern embedded in a uniform matrix. One type of Ch-glass is considered as the background material whereas another type of Ch-glass is assumed to fill the air holes. The relative index contrast between these two Ch-glasses is similar to 24%, for which PBG appears only for a suitable range of non-zero longitudinal wave vector. We have studied the scalability of this PBG by varying the lattice parameter of MOF and optimized the cross-section to attain the PBG at similar to 2 mu m wavelength. Then by utilizing the thermo-optic properties of the glasses, the effect of external temperature (T) on the PBG is studied, and finally we have proposed a T-tunable wavelength filter/sensor at mid-IR wavelength with tuning sensitivity as high as similar to 140 pm/degrees C. C1 [Barh, Ajanta; Varshney, R. K.] Indian Inst Technol Delhi, Dept Phys, New Delhi 110016, India. [Pal, B. P.] Mahindra Ecole Cent Hyderabad, Sch Nat Sci, Hyderabad 500043, Andhra Pradesh, India. [Sanghera, J.; Shaw, L. B.] Naval Res Lab, Washington, DC USA. RP Barh, A (reprint author), Indian Inst Technol Delhi, Dept Phys, New Delhi 110016, India. NR 14 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 978-1-62841-864-4 J9 PROC SPIE PY 2015 VL 9654 AR 96541P DI 10.1117/12.2182330 PG 5 WC Engineering, Electrical & Electronic; Optics; Physics, Applied SC Engineering; Optics; Physics GA BD1EP UT WOS:000357980100061 ER PT S AU Kendziora, CA Furstenberg, R Papantonakis, M Nguyen, V Byers, J McGill, RA AF Kendziora, Christopher A. Furstenberg, Robert Papantonakis, Michael Nguyen, Viet Byers, Jeff McGill, R. Andrew BE George, T Dutta, AK Islam, MS TI Detection of trace explosives on relevant substrates using a mobile platform for photothermal infrared imaging spectroscopy (PT-IRIS) SO MICRO- AND NANOTECHNOLOGY SENSORS, SYSTEMS, AND APPLICATIONS VII SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Micro- and Nanotechnology Sensors, Systems, and Applications VII CY APR 20-24, 2015 CL Baltimore, MD SP SPIE DE explosives; stand-off detection; infrared; QCL; imaging; focal plane array; photothermal; algorithm AB This manuscript describes the results of recent tests regarding standoff detection of trace explosives on relevant substrates using a mobile platform. We are developing a technology for detection based on photo-thermal infrared (IR) imaging spectroscopy (PT-IRIS). This approach leverages one or more microfabricated IR quantum cascade lasers, tuned to strong absorption bands in the analytes and directed to illuminate an area on a surface of interest. An IR focal plane array is used to image the surface thermal emission upon laser illumination. The PT-IRIS signal is processed as a hyperspectral image cube comprised of spatial, spectral and temporal dimensions as vectors within a detection algorithm. Increased sensitivity to explosives and selectivity between different analyte types is achieved by narrow bandpass IR filters in the collection path. We have previously demonstrated the technique at several meters of stand-off distance indoors and in field tests, while operating the lasers below the infrared eye-safe intensity limit (100 mW/cm(2)). Sensitivity to explosive traces as small as a single 10 mu m diameter particle (similar to 1 ng) has been demonstrated. Analytes tested here include RDX, TNT, ammonium nitrate and sucrose. The substrates tested in this current work include metal, plastics, glass and painted car panels. C1 [Kendziora, Christopher A.; Furstenberg, Robert; Papantonakis, Michael; Nguyen, Viet; Byers, Jeff; McGill, R. Andrew] Naval Res Lab, Washington, DC 20375 USA. RP Kendziora, CA (reprint author), Naval Res Lab, Code 6360,4555 Overlook Ave SW, Washington, DC 20375 USA. EM chris.kendziora@nrl.navy.mil NR 18 TC 2 Z9 2 U1 3 U2 13 PU SPIE-INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA SN 0277-786X BN 978-1-62841-583-4 J9 PROC SPIE PY 2015 VL 9467 AR 94672R DI 10.1117/12.2177255 PG 10 WC Engineering, Electrical & Electronic; Nanoscience & Nanotechnology; Optics; Physics, Applied SC Engineering; Science & Technology - Other Topics; Optics; Physics GA BD0IX UT WOS:000357259000066 ER PT S AU Minor, C Johnson, K AF Minor, Christian Johnson, Kevin BE Braun, JJ TI Reliable sources and uncertain decisions in multisensor systems SO MULTISENSOR, MULTISOURCE INFORMATION FUSION: ARCHITECTURES, ALGORITHMS, AND APPLICATIONS 2015 SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Multisensor, Multisource Information Fusion - Architectures, Algorithms, and Applications CY APR 21, 2015 CL Baltimore, MD SP SPIE DE multisensor systems; data fusion; sensor reliability; interferants; open-world sensing; Dempster-Shafer theory; combination rules ID TRANSFERABLE BELIEF MODEL; COMBINATION RULES AB Conflict among information sources is a feature of fused multisource and multisensor systems. Accordingly, the subject of conflict resolution has a long history in the literature of data fusion algorithms such as that of Dempster-Shafer theory (DS). Most conflict resolution strategies focus on distributing the conflict among the elements of the frame of discernment (the set of hypotheses that describe the possible decisions for which evidence is obtained) through rescaling of the evidence. These "closed-world" strategies imply that conflict is due to the uncertainty in evidence sources stemming from their reliability. An alternative approach is the "open-world" hypothesis, which allows for the presence of "unknown" elements not included in the original frame of discernment. Here, conflict must be considered as a result of uncertainty in the frame of the discernment, rather than solely the province of evidence sources. Uncertainty in the operating environment of a fused system is likely to appear as an open-world scenario. Understanding the origin of conflict (source versus frame of discernment uncertainty) is a challenging area for research in fused systems. Determining the ratio of these uncertainties provides useful insights into the operation of fused systems and confidence in their decisions for a variety of operating environments. Results and discussion for the computation of these uncertainties are presented for several combination rules with simulated data sets. C1 [Minor, Christian] Nova Res Inc, Alexandria, VA 22308 USA. [Johnson, Kevin] Naval Res Lab, Washington, DC 20375 USA. RP Minor, C (reprint author), Nova Res Inc, Alexandria, VA 22308 USA. NR 14 TC 0 Z9 0 U1 1 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 978-1-62841-614-5 J9 PROC SPIE PY 2015 VL 9498 AR 949803 DI 10.1117/12.2177389 PG 13 WC Engineering, Electrical & Electronic; Optics; Physics, Applied SC Engineering; Optics; Physics GA BD1LA UT WOS:000358123800002 ER PT S AU Reintjes, J Bashkansky, M AF Reintjes, J. Bashkansky, Mark BE Donkor, E Pirich, AR Hayduk, M TI Considerations on collapse of the wavefunction SO QUANTUM INFORMATION AND COMPUTATION XIII SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Quantum Information and Computation XIII CY APR 22-24, 2015 CL Baltimore, MD SP SPIE DE Wavefunction collapse; Entangled ghost imaging; Spontaneous Parametric Downconversion; Mixed states ID DOWN-CONVERSION AB We investigate the specific form that the collapsed quantum state of a signal photon can take when its entangled idler is measured in an entangled ghost imaging configuration using a type II collinear phase matched spontaneous parametric downconversion (SPDC) interaction. Calculations of the correlated counting rate distributions in the ghost image plane and diffraction plane show that agreement between collapse and non-collapse models is obtained if the signal is assumed to collapse into a specific mixed state. However, if the signal is assumed to collapse into a pure state, significant differences arise between the predictions of the two collapse models. C1 [Reintjes, J.] Sotera Def Solut, Columbia, MD 21046 USA. [Bashkansky, Mark] Naval Res Lab, Washington, DC 20375 USA. RP Reintjes, J (reprint author), Sotera Def Solut, Columbia, MD 21046 USA. NR 17 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 978-1-62841-616-9 J9 PROC SPIE PY 2015 VL 9500 AR 95000U DI 10.1117/12.2176377 PG 14 WC Engineering, Electrical & Electronic; Optics; Physics, Applied SC Engineering; Optics; Physics GA BD1CK UT WOS:000357930800017 ER PT S AU Smith, JF AF Smith, James F., III BE Donkor, E Pirich, AR Hayduk, M TI Sensors based on quantum hyper-entanglement: efficiency and performance in the presence of other photon sources SO QUANTUM INFORMATION AND COMPUTATION XIII SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Quantum Information and Computation XIII CY APR 22-24, 2015 CL Baltimore, MD SP SPIE DE Quantum sensing/detection/imaging; quantum engineering; quantum hyper-entanglement/entanglement; super sensitivity/super resolution; quantum isolation; Bell state generation and detection; photonic orbital angular momentum; radial quantum number; quantum Fisher information/Cramer-Rao lower bound; quantum Chernoff bound AB An atmospheric imaging system based on quantum hyper-entanglement has been developed. Hyper-entanglement refers to entanglement in more than one degree of freedom, e.g. polarization, energy-time and orbital angular momentum (OAM). The system functions at optical or infrared frequencies. Only the signal photon propagates in the atmosphere, the ancilla photon is retained within the detector. This results in loss being essentially classical, giving rise to stronger forms of entanglement. Bell state generation and Bell state measurement, i.e. the ability to distinguish the various Bell states is discussed. A mathematical representation of Bell state generation and the Bell state analyzer, including a projection operator describing the measurement process is provided. Signatures for unique detection of the various Bell states are developed. A method and design for creating states hyper-entangled in polarization, energy-time, OAM and the radial quantum number is examined. Hermite-Gaussian (HG) modes, Laguerre-Gaussian (LG) modes, OAM dependence of the LG modes and a method of mode conversion are discussed. A projection operator that represents the combined measurements between the different degrees of freedom is provided. A model of generation and detection efficiencies for the different degrees of freedom and the implications for signal to noise ratio (SNR), signal to interference ratio (SIR), the quantum Cramer-Rao lower bound, and the measurement time are provided in closed form. A formula describing how hyper-entanglement greatly improves the maximum detection range of the system is derived. The formalism permits random noise and entangled or non-entangled sources of interference to be modeled. C1 Naval Res Lab, Washington, DC 20375 USA. RP Smith, JF (reprint author), Naval Res Lab, Code 5741, Washington, DC 20375 USA. EM james.smith@nrl.navy.mil NR 23 TC 1 Z9 1 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 978-1-62841-616-9 J9 PROC SPIE PY 2015 VL 9500 AR 95000E DI 10.1117/12.2176245 PG 17 WC Engineering, Electrical & Electronic; Optics; Physics, Applied SC Engineering; Optics; Physics GA BD1CK UT WOS:000357930800009 ER PT S AU Barbosa, JG AF Barbosa, Jose G. BE Carapezza, EM TI Sea-Air boundary meteorological sensor SO SENSORS, AND COMMAND, CONTROL, COMMUNICATIONS, AND INTELLIGENCE (C3I) TECHNOLOGIES FOR HOMELAND SECURITY, DEFENSE, AND LAW ENFORCEMENT XIV SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Sensors, and Command, Control, Communications, and Intelligence (C3I) Technologies for Homeland Security, Defense, and Law Enforcement XIV CY APR 20-22, 2015 CL Baltimore, MD SP SPIE DE Meteorological Sensor; RF Propagation; Raman Lidar; Atmospheric Ducts AB The atmospheric environment can significantly affect radio frequency and optical propagation. In the RF spectrum refraction and ducting can degrade or enhance communications and radar coverage. Platforms in or beneath refractive boundaries can exploit the benefits or suffer the effects of the atmospheric boundary layers. Evaporative ducts and surface-base ducts are of most concern for ocean surface platforms and evaporative ducts are almost always present along the sea-air interface. The atmospheric environment also degrades electro-optical systems resolution and visibility. The atmospheric environment has been proven not to be uniform and under heterogeneous conditions substantial propagation errors may be present for large distances from homogeneous models. An accurate and portable atmospheric sensor to profile the vertical index of refraction is needed for mission planning, post analysis, and in-situ performance assessment. The meteorological instrument used in conjunction with a radio frequency and electro-optical propagation prediction tactical decision aid tool would give military platforms, in real time, the ability to make assessments on communication systems propagation ranges, radar detection and vulnerability ranges, satellite communications vulnerability, laser range finder performance, and imaging system performance predictions. Raman lidar has been shown to be capable of measuring the required atmospheric parameters needed to profile the atmospheric environment. The atmospheric profile could then be used as input to a tactical decision aid tool to make propagation predictions. C1 Naval Undersea Warfare Ctr, ISR Syst & Platform Engn Branch, Submarine Electromagnet Syst Dept, Newport, RI 02841 USA. RP Barbosa, JG (reprint author), Naval Undersea Warfare Ctr, ISR Syst & Platform Engn Branch, Submarine Electromagnet Syst Dept, 1176 Howell St, Newport, RI 02841 USA. NR 18 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 978-1-62841-572-8 J9 PROC SPIE PY 2015 VL 9456 AR 94561D DI 10.1117/12.2182677 PG 15 WC Engineering, Electrical & Electronic; Optics; Telecommunications SC Engineering; Optics; Telecommunications GA BD0QH UT WOS:000357569500031 ER PT S AU Barbosa, JG Alberg, MT AF Barbosa, Jose G. Alberg, Matthew T. BE Carapezza, EM TI Navigation lights color study SO SENSORS, AND COMMAND, CONTROL, COMMUNICATIONS, AND INTELLIGENCE (C3I) TECHNOLOGIES FOR HOMELAND SECURITY, DEFENSE, AND LAW ENFORCEMENT XIV SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Sensors, and Command, Control, Communications, and Intelligence (C3I) Technologies for Homeland Security, Defense, and Law Enforcement XIV CY APR 20-22, 2015 CL Baltimore, MD SP SPIE DE Navigation lights; color identification and detection; color filter array; camera color accuracy; LED lights AB The chromaticity of navigation lights are defined by areas on the International Commission on Illumination (CIE) 1931 chromaticity diagram. The corner coordinates for these areas are specified in the International Regulations for Prevention of Collisions at Sea, 1972 (72 COLREGS). The navigation light's color of white, red, green, and yellow are bounded by these areas. The chromaticity values specified by the COLREGS for navigation lights were intended for the human visual system (HVS). The HVS can determine the colors of these lights easily under various conditions. For digital color camera imaging systems the colors of these lights are dependent on the camera's color spectral sensitivity, settings, and color correction. At night the color of these lights are used to quickly determine the relative course of vessels. If these lights are incorrectly identified or there is a delay in identifying them this could be a potential safety of ship concern. Vessels that use camera imaging systems exclusively for sight, at night, need to detect, identify, and discriminate navigation lights for navigation and collision avoidance. The introduction of light emitting diode (LED) lights and lights with different spectral signatures have the potential to be imaged very differently with an RGB color filter array (CFA) color camera than with the human eye. It has been found that some green navigation lights' images appear blue verse green. This has an impact on vessels that use camera imaging systems exclusively for navigation. This paper will characterize color cameras ability to properly reproducing navigation lights' color and survey a set of navigation light to determine if they conform to the COLREGS. C1 [Barbosa, Jose G.; Alberg, Matthew T.] Naval Undersea Warfare Ctr, Submarine Electromagnet Syst Dept, Newport, RI 02841 USA. RP Barbosa, JG (reprint author), Naval Undersea Warfare Ctr, Submarine Electromagnet Syst Dept, 1176 Howell St, Newport, RI 02841 USA. NR 14 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 978-1-62841-572-8 J9 PROC SPIE PY 2015 VL 9456 AR 94561A DI 10.1117/12.2182676 PG 10 WC Engineering, Electrical & Electronic; Optics; Telecommunications SC Engineering; Optics; Telecommunications GA BD0QH UT WOS:000357569500029 ER PT S AU Barbosa, JG AF Barbosa, Jose G. BE Carapezza, EM TI Various uses for optical metamaterials SO SENSORS, AND COMMAND, CONTROL, COMMUNICATIONS, AND INTELLIGENCE (C3I) TECHNOLOGIES FOR HOMELAND SECURITY, DEFENSE, AND LAW ENFORCEMENT XIV SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Sensors, and Command, Control, Communications, and Intelligence (C3I) Technologies for Homeland Security, Defense, and Law Enforcement XIV CY APR 20-22, 2015 CL Baltimore, MD SP SPIE DE Optical metamaterials; cloaking; diffraction limited lens; transformation optics; negative refractive index; optical metamaterial applications ID 3-DIMENSIONAL PHOTONIC METAMATERIALS; FREQUENCIES AB Optical metamaterials promise aberration free and better than diffraction limited performance for imaging systems through constructed materials made to regulate the interaction with electromagnetic waves. Optical metamaterials have the potential to miniaturize the optical bench and obtain diffraction-limited performance with a single device. The reduction of size, weight, and complexity of optical systems while maintaining performance is desired. In unmanned aircrafts, buoy systems, 360 degree imaging systems, and optronic or traditional periscope systems the lenses constitute a considerable percentage of the weight and volume. Another characteristic that is desired is optical cross section reduction for both visible and infrared bands. Optical cloaking using metamaterials has the potential to make objects indiscernible from its environment by masking objects signature. Other characteristics that are desired are materials that are perfect light absorbers for stray light baffles, detectors, or solar energy harvesting, nonlinear frequency conversion for photonics devices, and lenses or head window coatings to achieve specific properties. These topics are discussed in this paper. C1 Naval Undersea Warfare Ctr, ISR Syst & Platform Engn Branch, Submarine Electromagnet Syst Dept, Newport, RI 02841 USA. RP Barbosa, JG (reprint author), Naval Undersea Warfare Ctr, ISR Syst & Platform Engn Branch, Submarine Electromagnet Syst Dept, 1176 Howell St, Newport, RI 02841 USA. NR 25 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 978-1-62841-572-8 J9 PROC SPIE PY 2015 VL 9456 AR 945618 DI 10.1117/12.2182675 PG 6 WC Engineering, Electrical & Electronic; Optics; Telecommunications SC Engineering; Optics; Telecommunications GA BD0QH UT WOS:000357569500027 ER PT S AU Manzur, T Katz, R Olson, J AF Manzur, Tariq Katz, Richard Olson, Joshua BE Carapezza, EM TI Challenges of Laser Beam Propagation Near/within Marine Boundary Layer: SPIE Defense 2015_Baltimore SO SENSORS, AND COMMAND, CONTROL, COMMUNICATIONS, AND INTELLIGENCE (C3I) TECHNOLOGIES FOR HOMELAND SECURITY, DEFENSE, AND LAW ENFORCEMENT XIV SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Sensors, and Command, Control, Communications, and Intelligence (C3I) Technologies for Homeland Security, Defense, and Law Enforcement XIV CY APR 20-22, 2015 CL Baltimore, MD SP SPIE AB Marine atmospheric condition plays a critical role on imaging, laser beam propagation, and optical communication of the commercial and military platform. In Military platforms, ships and sailors must be able to defend and communicate with other maritime platform in sometimes volatile and hostile regions around the globe. Naval combatants need defensive and offensive capabilities against a variety of potential threats -many coming at low altitude, UAV, USV etc. High energy lasers (HELs) are currently in development, which have sufficient power levels ((similar to)100 kW) to destroy/disable most types of threats. Though target engagement and energy delivery are challenging, a HEL weapon can engage targets at the speed of light, does not require physical ammunition, and is able to run for hours at a time. Speed of light engagement provides a great advantage to countering longer range target such as missiles, platform sensors, and swarming boats. The main goal is to achieve the largest energy density on the target at significantly tactical ranges to neutralize or destroy the target. The main limitations to effectiveness at long range are power, atmospheric attenuation, atmospheric distortion and thermal blooming. In particular, once the path is long enough to enter the deep turbulence regime, operation becomes much more difficult. Static targets such as head-on missile engagements are subject to extreme thermal blooming. A benefit of HEL technology is the cost per round is about less than one dollar per shot (one minute dual time) compared to one hundred to tens of thousands of dollars per shot using other conventional kinetic weapon systems. In this paper we are proposing to measure and model atmospheric turbulence for laser beam propagation and lethality predictions for targets in the near surface marine boundary layer. C1 [Manzur, Tariq; Katz, Richard] Naval Undersea Warfare Ctr, Newport, RI 02841 USA. [Olson, Joshua] Univ Arizona, Tucson, AZ 85721 USA. RP Manzur, T (reprint author), Naval Undersea Warfare Ctr, Newport, RI 02841 USA. NR 1 TC 0 Z9 0 U1 2 U2 8 PU SPIE-INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA SN 0277-786X BN 978-1-62841-572-8 J9 PROC SPIE PY 2015 VL 9456 AR 945617 DI 10.1117/12.2181002 PG 10 WC Engineering, Electrical & Electronic; Optics; Telecommunications SC Engineering; Optics; Telecommunications GA BD0QH UT WOS:000357569500026 ER PT S AU Nuttall, AH Katz, RA Hughes, DR Koch, RM AF Nuttall, A. H. Katz, R. A. Hughes, D. R. Koch, R. M. BE Carapezza, EM TI Characterization of Nonlinear Systems with Memory; Combatting the Curse of Dimensionality SO SENSORS, AND COMMAND, CONTROL, COMMUNICATIONS, AND INTELLIGENCE (C3I) TECHNOLOGIES FOR HOMELAND SECURITY, DEFENSE, AND LAW ENFORCEMENT XIV SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Sensors, and Command, Control, Communications, and Intelligence (C3I) Technologies for Homeland Security, Defense, and Law Enforcement XIV CY APR 20-22, 2015 CL Baltimore, MD SP SPIE AB A generalized model for characterizing nonlinear systems was initially proposed by Italian mathematician and physicist Vito Volterra (1860-1940), published by Dover Publications in 1959 [1], and further expanded upon by American mathematician and MIT Professor Norbert Wiener (1894-1964) in a book published in 1958 [2]. More recently, Albert H. Nuttall, a coauthor on the present article working with the Navy, has made new inroads in applying the Wiener-Volterra model to real world problems by significantly reducing the computational workload for characterizing nonlinear systems with memory. Following this formulation, two measurement waveforms on the system are required in order to characterize a specified nonlinear system under consideration: an excitation input, x(t) (the transmitted signal) and a response output, z(t) (the received signal). Given these two measurement waveforms for a given propagation channel, a 'kernel' or 'channel response', h=[h(0),h(1),h(2),h(3)] between the two measurement points, is computed via a least squares approach that optimizes modeled kernel values by performing a best fit between measured response z(t) and a modeled response y(t). New techniques developed by A. Nuttall are invoked to significantly diminish the exponential growth of the number of computed kernel coefficients at second and third order in order to combat and reasonably reduce the curse of dimensionality. These techniques, among others, include maximally-sparse sampling of the kernels (first-, second-and third-order), combatting ill-conditioning on its own terms, and thereby realizing an exponential slowdown of the growth problem. Footnotes: [1] Volterra, V., Theory of Functionals and Integral and Integro-Differential Equations, Dover Publications, New York, 1959; [2] Wiener, Norbert, Nonlinear Problems in Random Theory, Technology Press of Massachusetts Institute of Technology, 1958. C1 [Nuttall, A. H.; Katz, R. A.; Hughes, D. R.; Koch, R. M.] Naval Undersea Warfare Ctr, Newport, RI 02841 USA. RP Nuttall, AH (reprint author), Naval Undersea Warfare Ctr, Newport, RI 02841 USA. EM richard.katz@navy.mil NR 0 TC 0 Z9 0 U1 1 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 978-1-62841-572-8 J9 PROC SPIE PY 2015 VL 9456 AR 945619 DI 10.1117/12.2182681 PG 5 WC Engineering, Electrical & Electronic; Optics; Telecommunications SC Engineering; Optics; Telecommunications GA BD0QH UT WOS:000357569500028 ER PT S AU Pietrzak, KA Alberg, MT AF Pietrzak, Kenneth A. Alberg, Matthew T. BE Carapezza, EM TI Image processing in a maritime environment SO SENSORS, AND COMMAND, CONTROL, COMMUNICATIONS, AND INTELLIGENCE (C3I) TECHNOLOGIES FOR HOMELAND SECURITY, DEFENSE, AND LAW ENFORCEMENT XIV SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Sensors, and Command, Control, Communications, and Intelligence (C3I) Technologies for Homeland Security, Defense, and Law Enforcement XIV CY APR 20-22, 2015 CL Baltimore, MD SP SPIE DE image processing; maritime; marine boundary layer; deinterlace; atmospheric turbulence; horizontal edge minimization AB The performance of mast mounted imaging sensors operating near the near marine boundary layer can be severely impacted by environmental issues. Haze, atmospheric turbulence, and rough seas can all impact imaging system performance. Examples of these impacts are provided in this paper. In addition, sensor artifacts such as deinterlace artifacts can also impact imaging performance. Deinterlace artifacts caused by a rotating mast are often too severe to be useful by an operator for detection of contacts. An artifact edge minimization approach is presented that eliminates these global motion-based deinterlace artifacts. C1 [Pietrzak, Kenneth A.; Alberg, Matthew T.] Naval Undersea Warfare Ctr, Div Newport, Newport, RI 02841 USA. RP Pietrzak, KA (reprint author), Naval Undersea Warfare Ctr, Div Newport, 1176 Howell St, Newport, RI 02841 USA. NR 4 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 978-1-62841-572-8 J9 PROC SPIE PY 2015 VL 9456 AR 94561C DI 10.1117/12.2182678 PG 8 WC Engineering, Electrical & Electronic; Optics; Telecommunications SC Engineering; Optics; Telecommunications GA BD0QH UT WOS:000357569500030 ER PT S AU Hickstein, DD Dollar, F Ellis, JL Gaffney, JA Foord, ME Petrov, GM Palm, BB Ding, CY Keister, KE Libby, SB Jimenez, JL Kapteyn, HC Murnane, MM Xiong, W AF Hickstein, Daniel D. Dollar, Franklin Ellis, Jennifer L. Gaffney, Jim A. Foord, Mark E. Petrov, George M. Palm, Brett B. Ding, Chengyuan Keister, K. Ellen Libby, Stephen B. Jimenez, Jose L. Kapteyn, Henry C. Murnane, Margaret M. Xiong, Wei BE Yamanouchi, I Cundiff, S DeVivieRiedle, R KuwataGonokami, M DiMauro, L TI Single Nanoparticles and Nanoplasmas in Femtosecond Laser Fields SO ULTRAFAST PHENOMENA XIX SE Springer Proceedings in Physics LA English DT Proceedings Paper CT 19th International Conference on Ultrafast Phenomena CY JUL 07-11, 2014 CL Okinawa, JAPAN SP Japan Intense Light Field Sci Soc, Ctr Ultrafast Intense Laser Sci, Univ Tokyo ID PHOTOELECTRON AB We combine an aerodynamic lens with a velocity-map-imaging spectrometer to make the first measurements of ultrafast dynamics in individual nanoplasmas. By using two laser pulses (800 and 400 nm) delayed by several picoseconds, we find that we can generate and control shock wave propagation in nanoplasmas, confirming a decade of theoretical predictions. Additionally, we observe pronounced asymmetries in the photoion angular distributions resulting from nanoparticles of different structure and composition, demonstrating the ability to observe nanoscale light absorption at laser intensities near the damage threshold. C1 [Hickstein, Daniel D.; Dollar, Franklin; Ellis, Jennifer L.; Ding, Chengyuan; Keister, K. Ellen; Kapteyn, Henry C.; Murnane, Margaret M.; Xiong, Wei] Univ Colorado, JILA, Boulder, CO 80309 USA. [Hickstein, Daniel D.; Dollar, Franklin; Ellis, Jennifer L.; Ding, Chengyuan; Keister, K. Ellen; Kapteyn, Henry C.; Murnane, Margaret M.; Xiong, Wei] Univ Colorado, Dept Phys, Boulder, CO 80309 USA. [Gaffney, Jim A.; Foord, Mark E.; Libby, Stephen B.] Lawrence Livermore Natl Lab, Div Phys, Phys & Life Sci, Livermore, CA 94550 USA. [Petrov, George M.] Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA. [Palm, Brett B.; Jimenez, Jose L.] Univ Colorado, Dept Chem, Boulder, CO 80309 USA. [Palm, Brett B.; Jimenez, Jose L.] CIRES, Boulder, CO 80309 USA. RP Hickstein, DD (reprint author), Univ Colorado, JILA, Boulder, CO 80309 USA. EM daniel.hickstein@colorado.edu RI Jimenez, Jose/A-5294-2008; OI Jimenez, Jose/0000-0001-6203-1847; Gaffney, Jim/0000-0002-2408-0047 NR 6 TC 0 Z9 0 U1 0 U2 6 PU SPRINGER-VERLAG BERLIN PI BERLIN PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY SN 0930-8989 BN 978-3-319-13242-6; 978-3-319-13241-9 J9 SPRINGER PROC PHYS PY 2015 VL 162 BP 702 EP 706 DI 10.1007/978-3-319-13242-6_173 PG 5 WC Physics, Applied SC Physics GA BD0UY UT WOS:000357738800173 ER PT J AU Nedoluha, GE Boyd, IS Parrish, A Gomez, RM Allen, DR Froidevaux, L Connor, BJ Querel, RR AF Nedoluha, G. E. Boyd, I. S. Parrish, A. Gomez, R. M. Allen, D. R. Froidevaux, L. Connor, B. J. Querel, R. R. TI Unusual stratospheric ozone anomalies observed in 22 years of measurements from Lauder, New Zealand SO ATMOSPHERIC CHEMISTRY AND PHYSICS LA English DT Article ID SAGE-II; TRACE CONSTITUENTS; DATA SET; VALIDATION; TRENDS; TEMPERATURE; TRANSPORT; PROFILE; HALOE; MODEL AB The Microwave Ozone Profiling Instrument (MOPI1) has provided ozone (O-3) profiles for the Network for the Detection of Atmospheric Composition Change (NDACC) at Lauder, New Zealand (45.0A degrees S, 169.7A degrees E), since 1992. We present the entire 22-year data set and compare with satellite O-3 observations. We study in detail two particularly interesting variations in O-3. The first is a large positive O-3 anomaly that occurs in the mid-stratosphere ( 10-30 hPa) in June 2001, which is caused by an anticyclonic circulation that persists for several weeks over Lauder. This O-3 anomaly is associated with the most equatorward June average tracer equivalent latitude (TrEL) over the 36-year period (1979-2014) for which the Modern Era Retrospective-Analysis for Research and Applications (MERRA) reanalysis is available. A second, longer-lived feature, is a positive O-3 anomaly in the mid-stratosphere (10 hPa) from mid-2009 until mid-2013. Coincident measurements from the Aura Microwave Limb Sounder (MLS) show that these high O-3 mixing ratios are well correlated with high nitrous oxide (N2O) mixing ratios. This correlation suggests that the high O-3 over this 4-year period is driven by unusual dynamics. The beginning of the high O-3 and high N2O period at Lauder (and throughout this latitude band) occurs nearly simultaneously with a sharp decrease in O-3 and N2O at the equator, and the period ends nearly simultaneously with a sharp increase in O-3 and N2O at the equator. C1 [Nedoluha, G. E.; Gomez, R. M.; Allen, D. R.] Naval Res Lab, Remote Sensing Div, Washington, DC 20375 USA. [Boyd, I. S.; Connor, B. J.] BC Sci Consulting LLC, Stony Brook, NY USA. [Parrish, A.] Univ Massachusetts, Dept Astron, Amherst, MA 01003 USA. [Froidevaux, L.] CALTECH, Jet Prop Lab, Pasadena, CA USA. [Querel, R. R.] Natl Inst Water & Atmospher Res, Lauder, New Zealand. RP Nedoluha, GE (reprint author), Naval Res Lab, Remote Sensing Div, Washington, DC 20375 USA. EM nedoluha@nrl.navy.mil RI Querel, Richard/D-3770-2015 OI Querel, Richard/0000-0001-8792-2486 FU NASA under the Upper Atmosphere Research Program; Naval Research Laboratory; Office of Naval Research; National Aeronautics and Space Administration FX We especially thank M. Kotkamp and A. Thomas for their long-term support of the MOPI instrument at Lauder. This project was funded by NASA under the Upper Atmosphere Research Program, by the Naval Research Laboratory, and by the Office of Naval Research. Work at the Jet Propulsion Laboratory, California Institute of Technology, was carried out under a contract with the National Aeronautics and Space Administration. MLS and HALOE data are available from the NASA Goddard Earth Science Data Information and Services Center (acdisc.gsfc.nasa.gov). NR 28 TC 4 Z9 4 U1 1 U2 3 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 2015 VL 15 IS 12 BP 6817 EP 6826 DI 10.5194/acp-15-6817-2015 PG 10 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA CL6ZC UT WOS:000357117500018 ER PT J AU Scarnato, BV China, S Nielsen, K Mazzoleni, C AF Scarnato, B. V. China, S. Nielsen, K. Mazzoleni, C. TI Perturbations of the optical properties of mineral dust particles by mixing with black carbon: a numerical simulation study SO ATMOSPHERIC CHEMISTRY AND PHYSICS LA English DT Article ID DISCRETE-DIPOLE APPROXIMATION; SAHARAN DUST; RADIATIVE PROPERTIES; REFRACTIVE-INDEXES; LIGHT-SCATTERING; IR WAVELENGTHS; SOOT AEROSOLS; ABSORPTION; MORPHOLOGY; SENSITIVITY AB Field observations show that individual aerosol particles are a complex mixture of a wide variety of species, reflecting different sources and physico-chemical transformations. The impacts of individual aerosol morphology and mixing characteristics on the Earth system are not yet fully understood. Here we present a sensitivity study on climate-relevant aerosols optical properties to various approximations. Based on aerosol samples collected in various geographical locations, we have observationally constrained size, morphology and mixing, and accordingly simulated, using the discrete dipole approximation model (DDSCAT), optical properties of three aerosols types: (1) bare black carbon (BC) aggregates, (2) bare mineral dust, and (3) an internal mixture of a BC aggregate laying on top of a mineral dust particle, also referred to as polluted dust. DDSCAT predicts optical properties and their spectral dependence consistently with observations for all the studied cases. Predicted values of mass absorption, scattering and extinction coefficients (MAC, MSC, MEC) for bare BC show a weak dependence on the BC aggregate size, while the asymmetry parameter (g) shows the opposite behavior. The simulated optical properties of bare mineral dust present a large variability depending on the modeled dust shape, confirming the limited range of applicability of spheroids over different types and size of mineral dust aerosols, in agreement with previous modeling studies. The polluted dust cases show a strong decrease in MAC values with the increase in dust particle size (for the same BC size) and an increase of the single scattering albedo (SSA). Furthermore, particles with a radius between 180 and 300 nm are characterized by a decrease in SSA values compared to bare dust, in agreement with field observations. This paper demonstrates that observationally constrained DDSCAT simulations allow one to better understand the variability of the measured aerosol optical properties in ambient air and to define benchmark biases due to different approximations in aerosol parametrization. C1 [Scarnato, B. V.; Nielsen, K.] Naval Postgrad Sch, Monterey, CA 93943 USA. [China, S.; Mazzoleni, C.] Michigan Technol Univ, Dept Phys, Houghton, MI 49931 USA. [China, S.; Mazzoleni, C.] Michigan Technol Univ, Atmospher Sci Program, Houghton, MI 49931 USA. RP Scarnato, BV (reprint author), Naval Postgrad Sch, 589 Dyer Rd,Root Hall, Monterey, CA 93943 USA. EM bvscarna@nps.edu FU Research Initiation Program at the Naval Postgraduate school; NASA [NNX13AN68H]; NSF [AGS-1110059]; DOE [DE-SC0006941, DE-SC0010019] FX The work in this paper has been funded by the Research Initiation Program at the Naval Postgraduate school. Some of the work discussed in this paper was funded through the following grants: NASA (grant NNX13AN68H), NSF (grant AGS-1110059), DOE (grants DE-SC0006941 and DE-SC0010019). S. China and C. Mazzoleni would also like to acknowledge the contribution of several collaborators while collecting aerosol samples in several field campaigns and utilized here. Scarnato would like to acknowledge Denis Richard for providing the aggregation code, and Sanaz Vahidinia for building a first version of the internal mixing code. NR 76 TC 5 Z9 5 U1 2 U2 18 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 2015 VL 15 IS 12 BP 6913 EP 6928 DI 10.5194/acp-15-6913-2015 PG 16 WC Meteorology & Atmospheric Sciences SC Meteorology & Atmospheric Sciences GA CL6ZC UT WOS:000357117500024 ER PT S AU Grbovic, D Alves, F Karunasiri, G Newman, J AF Grbovic, Dragoslav Alves, Fabio Karunasiri, Gamani Newman, Jim BE Sadjadi, FA Mahalanobis, A TI Metal-organic hybrid metamaterial THz imaging band translators SO AUTOMATIC TARGET RECOGNITION XXV SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Automatic Target Recognition XXV CY APR 20-22, 2015 CL Baltimore, MD SP SPIE DE Terahertz sensor; metamaterial absorber; SU8 ID QUANTUM CASCADE LASER; MICROELECTROMECHANICAL SYSTEMS; TERAHERTZ; SENSORS; SU-8; WAVE AB We investigate the feasibility of negative photoresist as a structural material in metal-organic hybrid THz imaging detectors using SU-8. We will discuss design of metamaterials for MEMS-based terahertz (THz) thermal sensors and design and microfabrication process for building SU8-based MEMS THz focal plane arrays. Metamaterials of this kind, exhibiting absorption properties comparable to those of resonant metamaterials made using traditional thin films, coupled with the applicability of SU-8 as a structural material, offer possibilities for quick, simple microfabrication of focal plane arrays of THz imaging detectors. SU-8 is a low-cost material that can quickly be spun onto a substrate at a wide range of thicknesses and photolithographically patterned into a variety of structures. This removes the need for both PECVD deposition and plasma etching, dramatically increasing the speed and lowering the cost of production of such FPAs. We further investigate feasibility of use of such detectors as band translators rather than traditional bimaterial devices. Translators would be optically probed with an infrared (IR) camera. Individual pixels would absorb THz radiation, heat up and the thermal image would be projected onto an infrared camera, effectively translating the image from THz into IR. C1 [Grbovic, Dragoslav; Alves, Fabio; Karunasiri, Gamani; Newman, Jim] Naval Postgrad Sch, Dept Phys, Monterey, CA 93943 USA. RP Grbovic, D (reprint author), Naval Postgrad Sch, Dept Phys, Monterey, CA 93943 USA. NR 24 TC 0 Z9 0 U1 5 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 978-1-62841-592-6 J9 PROC SPIE PY 2015 VL 9476 AR 94760W DI 10.1117/12.2185116 PG 8 WC Engineering, Electrical & Electronic; Optics; Telecommunications SC Engineering; Optics; Telecommunications GA BD0OD UT WOS:000357464100027 ER PT S AU Kim, AM Olsen, RC Beland, M AF Kim, Angela M. Olsen, Richard C. Beland, Martin BE Turner, MD Kamerman, GW Thomas, LMW Spillar, EJ TI Simulation of small-footprint full-waveform LiDAR propagation through a tree canopy in 3D SO LASER RADAR TECHNOLOGY AND APPLICATIONS XX; AND ATMOSPHERIC PROPAGATION XII SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Laser Radar Technology and Applications XX and Atmospheric Propagation XII CY APR 21-23, 2015 CL Baltimore, MD SP SPIE DE LiDAR; Monte Carlo; ray tracing; VoxLAD; simulation; small footprint; full-waveform ID MODEL AB A Monte Carlo ray tracing simulation of LiDAR propagation has been expanded to 3 dimensions, and makes use of the high-fidelity tree voxel model VoxLAD for realistic simulation of a single tree canopy. The VoxLAD model uses terrestrial LiDAR scanner data to determine Leaf Area Density (LAD) measurements for small volume voxels (similar to 5 - 20 cm side length). The LAD measurement, along with material surface normal orientation information, is used within the Monte Carlo LiDAR propagation model to determine the probability of LiDAR energy being absorbed, transmitted or reflected at each voxel location, and the direction of scattering should an interaction occur. The high spatial fidelity of the VoxLAD models enables simulation of small-footprint LiDAR systems. Results are presented demonstrating incorporation of the VoxLAD model for realistic tree canopy simulation, and the the full-waveform simulation capability of the Monte Carlo LiDAR code. C1 [Kim, Angela M.; Olsen, Richard C.] Naval Postgrad Sch, Remote Sensing Ctr, Monterey, CA 93943 USA. [Kim, Angela M.; Olsen, Richard C.] US Navy, Postgrad Sch, Dept Phys, Monterey, CA 93943 USA. [Beland, Martin] Univ Laval, Dept Geomat Sci, Quebec City, PQ, Canada. RP Kim, AM (reprint author), Naval Postgrad Sch, Remote Sensing Ctr, 833 Dyer Rd, Monterey, CA 93943 USA. EM amkim@nps.edu RI Olsen, Richard/O-2699-2015 OI Olsen, Richard/0000-0002-8344-9297 NR 16 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 978-1-62841-581-0 J9 PROC SPIE PY 2015 VL 9465 AR 94650K DI 10.1117/12.2177158 PG 12 WC Engineering, Electrical & Electronic; Optics; Physics, Applied SC Engineering; Optics; Physics GA BD0JA UT WOS:000357260200017 ER PT S AU Kim, AM Runyon, SC Olsen, RC AF Kim, Angela M. Runyon, Scott C. Olsen, Richard C. BE Turner, MD Kamerman, GW Thomas, LMW Spillar, EJ TI Comparison of Full-waveform, Single-Photon Sensitive, and Discrete Analog LiDAR Data SO LASER RADAR TECHNOLOGY AND APPLICATIONS XX; AND ATMOSPHERIC PROPAGATION XII SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Laser Radar Technology and Applications XX; and Atmospheric Propagation XII CY APR 21-23, 2015 CL Baltimore, MD SP SPIE DE LiDAR; full-waveform; single-photon sensitive; discrete analog AB Full-waveform LiDAR data from an AHAB Chiroptera I system with 515 nm and 1032 nm lasers (similar to 10 pts/m(2)), single-photon sensitive data from the Sigma Space HRQLS system with a 532 nm laser (similar to 19 pts/m(2)), and discrete analog data from an Optech Orion C200 system (similar to 88 pts/m(2)) were collected from aerial platforms over Monterey, CA, USA in fall 2012 and fall 2013. The study area contains residential neighborhoods, forested regions, inland lakes, and the Pacific Ocean near-shore environment. Significant ground truth in the form of GPS measurements and terrestrial LiDAR scans enable the LiDAR data to be compared in terms of measurement precision and degree of tree canopy penetration, as well as comparisons of derived raster products. C1 [Kim, Angela M.] Naval Postgrad Sch, Remote Sensing Ctr, Monterey, CA 93943 USA. US Navy, Postgrad Sch, Dept Phys, Monterey, CA 93943 USA. RP Kim, AM (reprint author), Naval Postgrad Sch, Remote Sensing Ctr, 833 Dyer Rd, Monterey, CA 93943 USA. EM amkim@nps.edu RI Olsen, Richard/O-2699-2015 OI Olsen, Richard/0000-0002-8344-9297 NR 3 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 978-1-62841-581-0 J9 PROC SPIE PY 2015 VL 9465 AR 94650L DI 10.1117/12.2177431 PG 10 WC Engineering, Electrical & Electronic; Optics; Physics, Applied SC Engineering; Optics; Physics GA BD0JA UT WOS:000357260200018 ER EF