FN Thomson Reuters Web of Science™ VR 1.0 PT S AU Munguia, LM Oxberry, G Rajan, D AF Munguia, Lluis-Miquel Oxberry, Geoffrey Rajan, Deepak GP IEEE TI PIPS-SBB: A parallel distributed-memory branch-and-bound algorithm for stochastic mixed-integer programs SO 2016 IEEE 30TH INTERNATIONAL PARALLEL AND DISTRIBUTED PROCESSING SYMPOSIUM WORKSHOPS (IPDPSW) SE IEEE International Symposium on Parallel and Distributed Processing Workshops LA English DT Proceedings Paper CT 30th IEEE International Parallel and Distributed Processing Symposium (IPDPS) CY MAY 23-27, 2016 CL Illinois Inst Technol, Chicago, IL SP IEEE, IEEE Comp Soc, Tech Comm Parallel Proc, ACM SIGARCH, IEEE Comp Soc Tech Comm Comp Architecture, IEEE Comp Soc Tech Comm Distributed Proc HO Illinois Inst Technol ID OPTIMIZATION; MODELS; POINT AB Stochastic mixed-integer programs (SMIPs) deal with optimization under uncertainty at many levels of the decision-making process. When solved as extensive formulation mixed-integer programs, problem instances can exceed available memory on a single workstation. To overcome this limitation, we present PIPS-SBB: an exact distributed-memory parallel stochastic MIP solver that takes advantage of parallelism at multiple levels of the optimization process. We show promising results on instances from the SIPLIB benchmark by combining methods known for accelerating Branch and Bound (B&B) methods with new ideas that leverage the structure of SMIPs. We expect the performance of PIPS-SBB to improve further as more functionality is added in the future. C1 [Munguia, Lluis-Miquel] Georgia Inst Technol, Coll Comp, Atlanta, GA 30332 USA. [Oxberry, Geoffrey] Lawrence Livermore Natl Lab, Computat Engn Div, Livermore, CA 94550 USA. [Rajan, Deepak] Lawrence Livermore Natl Lab, Ctr Appl Sci Comp, Livermore, CA 94550 USA. RP Munguia, LM (reprint author), Georgia Inst Technol, Coll Comp, Atlanta, GA 30332 USA. EM lluis.munguia@gatech.edu; oxberry1@llnl.gov; rajan3@llnl.gov NR 29 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2164-7062 BN 978-1-5090-3682-0 J9 IEEE SYM PARA DISTR PY 2016 BP 730 EP 739 DI 10.1109/IPDPSW.2016.159 PG 10 WC Computer Science, Hardware & Architecture; Computer Science, Theory & Methods SC Computer Science GA BG7FR UT WOS:000391253600085 ER PT S AU Iwabuchi, K Sallinen, S Pearce, R Van Essen, B Gokhale, M Matsuoka, S AF Iwabuchi, Keita Sallinen, Scott Pearce, Roger Van Essen, Brian Gokhale, Maya Matsuoka, Satoshi GP IEEE TI Towards a Distributed Large-Scale Dynamic Graph Data Store SO 2016 IEEE 30TH INTERNATIONAL PARALLEL AND DISTRIBUTED PROCESSING SYMPOSIUM WORKSHOPS (IPDPSW) SE IEEE International Symposium on Parallel and Distributed Processing Workshops LA English DT Proceedings Paper CT 30th IEEE International Parallel and Distributed Processing Symposium (IPDPS) CY MAY 23-27, 2016 CL Illinois Inst Technol, Chicago, IL SP IEEE, IEEE Comp Soc, Tech Comm Parallel Proc, ACM SIGARCH, IEEE Comp Soc Tech Comm Comp Architecture, IEEE Comp Soc Tech Comm Distributed Proc HO Illinois Inst Technol ID DE-BRUIJN GRAPHS AB In many graph applications, the structure of the graph changes dynamically over time and may require real time analysis. However, constructing a large graph is expensive, and most studies for large graphs have not focused on a dynamic graph data structure, but rather a static one. To address this issue, we propose DegAwareRHH, a high performance dynamic graph data store designed for scaling out to store large, scale-free graphs by leveraging compact hash tables with high data locality. We extend DegAwareRHH for multiple processes and distributed memory, and perform dynamic graph construction on large scale-free graphs using emerging 'Big Data HPC' systems such as the Catalyst cluster at LLNL. We demonstrate that DegAwareRHH processes a request stream 206.5x faster than a state-of-the-art shared-memory dynamic graph processing framework, when both implementations use 24 threads/processes to construct a graph with 1 billion edge insertion requests and 54 million edge deletion requests. DegAwareRHH also achieves a processing rate of over 2 billion edge insertion requests per second using 128 compute nodes to construct a large-scale web graph, containing 128 billion edges, the largest open-source real graph dataset to our knowledge. C1 [Iwabuchi, Keita; Pearce, Roger; Van Essen, Brian; Gokhale, Maya] Lawrence Livermore Natl Lab, Ctr Appl Sci Comp, Lawrence, KS 94550 USA. [Iwabuchi, Keita] Tokyo Inst Technol, Dept Math & Comp Sci, Tokyo, Japan. [Sallinen, Scott] Univ British Columbia, Dept Elect & Comp Engn, Vancouver, BC V5Z 1M9, Canada. [Matsuoka, Satoshi] Tokyo Inst Technol, Global Sci Informat & Comp Ctr, Tokyo, Japan. RP Iwabuchi, K (reprint author), Lawrence Livermore Natl Lab, Ctr Appl Sci Comp, Lawrence, KS 94550 USA.; Iwabuchi, K (reprint author), Tokyo Inst Technol, Dept Math & Comp Sci, Tokyo, Japan. EM iwabuchi.k.ab@m.titech.ac.jp; scotts@ece.ubc.ca; rpearce@llnl.gov; vanessen1@llnl.gov; maya@llnl.gov; matsu@is.titech.ac.jp NR 30 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2164-7062 BN 978-1-5090-3682-0 J9 IEEE SYM PARA DISTR PY 2016 BP 892 EP 901 DI 10.1109/IPDPSW.2016.189 PG 10 WC Computer Science, Hardware & Architecture; Computer Science, Theory & Methods SC Computer Science GA BG7FR UT WOS:000391253600104 ER PT S AU Pugmire, D Kress, J Choi, J Klasky, S Kurc, T Churchill, RM Wolf, M Eisenhauer, G Childs, H Wu, KS Sim, A Gu, JM Low, J AF Pugmire, David Kress, James Choi, Jong Klasky, Scott Kurc, Tahsin Churchill, Randy Michael Wolf, Matthew Eisenhauer, Greg Childs, Hank Wu, Kesheng Sim, Alexander Gu, Junmin Low, Jonathan GP IEEE TI Visualization and Analysis for Near-Real-Time Decision Making in Distributed Workflows SO 2016 IEEE 30TH INTERNATIONAL PARALLEL AND DISTRIBUTED PROCESSING SYMPOSIUM WORKSHOPS (IPDPSW) SE IEEE International Symposium on Parallel and Distributed Processing Workshops LA English DT Proceedings Paper CT 30th IEEE International Parallel and Distributed Processing Symposium (IPDPS) CY MAY 23-27, 2016 CL Illinois Inst Technol, Chicago, IL SP IEEE, IEEE Comp Soc, Tech Comm Parallel Proc, ACM SIGARCH, IEEE Comp Soc Tech Comm Comp Architecture, IEEE Comp Soc Tech Comm Distributed Proc HO Illinois Inst Technol AB Data driven science is becoming increasingly more common, complex, and is placing tremendous stresses on visualization and analysis frameworks. Data sources producing 10GB per second (and more) are becoming increasingly commonplace in both simulation, sensor and experimental sciences. These data sources, which are often distributed around the world, must be analyzed by teams of scientists that are also distributed. Enabling scientists to view, query and interact with such large volumes of data in near-real-time requires a rich fusion of visualization and analysis techniques, middleware and workflow systems. This paper discusses initial research into visualization and analysis of distributed data workflows that enables scientists to make near-real-time decisions of large volumes of time varying data. C1 [Pugmire, David; Kress, James; Choi, Jong; Klasky, Scott; Kurc, Tahsin] Oak Ridge Natl Lab, Oak Ridge, TN 37830 USA. [Kress, James; Childs, Hank] Univ Oregon, Eugene, OR 97403 USA. [Kurc, Tahsin] SUNY Stony Brook, Stony Brook, NY USA. [Churchill, Randy Michael] Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA. [Wolf, Matthew; Eisenhauer, Greg] Georgia Inst Technol, Atlanta, GA 30332 USA. [Childs, Hank; Wu, Kesheng; Sim, Alexander; Gu, Junmin] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. [Low, Jonathan] ASTAR, Computat Resource Ctr, Singapore, Singapore. RP Pugmire, D (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37830 USA. OI Kress, James/0000-0002-9706-6182 NR 20 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2164-7062 BN 978-1-5090-3682-0 J9 IEEE SYM PARA DISTR PY 2016 BP 1007 EP 1013 DI 10.1109/IPDPSW.2016.175 PG 7 WC Computer Science, Hardware & Architecture; Computer Science, Theory & Methods SC Computer Science GA BG7FR UT WOS:000391253600119 ER PT S AU Pebay, P Bennett, JC Hollman, D Treichler, S McCormick, PS Sweeney, CM Kolla, H Aiken, A AF Pebay, Philippe Bennett, Janine C. Hollman, David Treichler, Sean McCormick, Patrick S. Sweeney, Christine M. Kolla, Hemanth Aiken, Alex GP IEEE TI Towards Asynchronous Many-Task In Situ Data Analysis Using Legion SO 2016 IEEE 30TH INTERNATIONAL PARALLEL AND DISTRIBUTED PROCESSING SYMPOSIUM WORKSHOPS (IPDPSW) SE IEEE International Symposium on Parallel and Distributed Processing Workshops LA English DT Proceedings Paper CT 30th IEEE International Parallel and Distributed Processing Symposium (IPDPS) CY MAY 23-27, 2016 CL Illinois Inst Technol, Chicago, IL SP IEEE, IEEE Comp Soc, Tech Comm Parallel Proc, ACM SIGARCH, IEEE Comp Soc Tech Comm Comp Architecture, IEEE Comp Soc Tech Comm Distributed Proc HO Illinois Inst Technol DE Programming Models; Asynchronous Many-Task; Parallel Computing; Computational Statistics AB We explore the use of asynchronous many-task (AMT) programming models for the implementation of in situ analysis towards the goal of maximizing programmer productivity and overall performance on next generation platforms. We describe how a broad class of statistics algorithms can be transformed from a traditional single-programm multiple-data (SPMD) implementation to an AMT implementation, demonstrating with a concrete example: a measurement of descriptive statistics implemented in Legion. Our experiments to quantify the benefit and possible drawbacks of this approach are in progress, and we present some encouraging initial results on the (minimal) impact of the AMT-based approach on code complexity, task scheduling, and application scalability. C1 [Pebay, Philippe; Bennett, Janine C.; Hollman, David; Kolla, Hemanth] Sandia Natl Labs, Livermore, CA 94550 USA. [Bennett, Janine C.; Hollman, David; Treichler, Sean; McCormick, Patrick S.; Aiken, Alex] Stanford Univ, Stanford, CA 94305 USA. [McCormick, Patrick S.; Sweeney, Christine M.] Los Alamos Natl Lab, Los Alamos, NM USA. RP Pebay, P (reprint author), Sandia Natl Labs, Livermore, CA 94550 USA. EM pppebay@sandia.gov; jcbenne@sandia.gov; dshollm@sandia.gov; sjt@cs.stanford.edu; pat@lanl.gov; cahrens@lanl.gov; hnkolla@sandia.gov; aiken@cs.stanford.edu OI Pebay, Philippe/0000-0002-2311-3775 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 SN 2164-7062 BN 978-1-5090-3682-0 J9 IEEE SYM PARA DISTR PY 2016 BP 1033 EP 1037 DI 10.1109/IPDPSW.2016.24 PG 5 WC Computer Science, Hardware & Architecture; Computer Science, Theory & Methods SC Computer Science GA BG7FR UT WOS:000391253600122 ER PT S AU Rizzi, S Hereld, M Insley, J Malakar, P Papka, ME Uram, T Vishwanath, V AF Rizzi, Silvio Hereld, Mark Insley, Joseph Malakar, Preeti Papka, Michael E. Uram, Thomas Vishwanath, Venkatram GP IEEE TI Coupling LAMMPS and the vl3 Framework for Co-Visualization of Atomistic Simulations SO 2016 IEEE 30TH INTERNATIONAL PARALLEL AND DISTRIBUTED PROCESSING SYMPOSIUM WORKSHOPS (IPDPSW) SE IEEE International Symposium on Parallel and Distributed Processing Workshops LA English DT Proceedings Paper CT 30th IEEE International Parallel and Distributed Processing Symposium (IPDPS) CY MAY 23-27, 2016 CL Illinois Inst Technol, Chicago, IL SP IEEE, IEEE Comp Soc, Tech Comm Parallel Proc, ACM SIGARCH, IEEE Comp Soc Tech Comm Comp Architecture, IEEE Comp Soc Tech Comm Distributed Proc HO Illinois Inst Technol DE molecular dynamics simulations; large-scale visualization; co-visualization; in-situ visualization AB In this work we perform in-situ visualization of molecular dynamics simulations, which can help scientists to visualize simulation output on-the-fly, without incurring storage overheads. We present a case study to couple LAMMPS, the large-scale molecular dynamics simulation code with vl3, our parallel framework for large-scale visualization and analysis. Our motivation is to identify effective approaches for co-visualization and exploration of large-scale atomistic simulations at interactive frame rates. We propose a system of coupled libraries and describe its architecture, with an implementation that runs on GPU-based clusters. We present the results of strong and weak scalability experiments, as well as future research avenues based on our results. C1 [Rizzi, Silvio; Hereld, Mark; Insley, Joseph; Malakar, Preeti; Papka, Michael E.; Uram, Thomas; Vishwanath, Venkatram] Argonne Natl Lab, Argonne, IL 60439 USA. RP Rizzi, S (reprint author), Argonne Natl Lab, Argonne, IL 60439 USA. EM srizzi@anl.gov; hereld@anl.gov; insley@anl.gov; pmalakar@anl.gov; papka@anl.gov; turam@anl.gov; venkat@anl.gov 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 2164-7062 BN 978-1-5090-3682-0 J9 IEEE SYM PARA DISTR PY 2016 BP 1038 EP 1042 DI 10.1109/IPDPSW.2016.26 PG 5 WC Computer Science, Hardware & Architecture; Computer Science, Theory & Methods SC Computer Science GA BG7FR UT WOS:000391253600123 ER PT S AU Sisneros, R Pugmire, D AF Sisneros, Robert Pugmire, David GP IEEE TI Tuned to Terrible: A Study of Parallel Particle Advection State of the Practice SO 2016 IEEE 30TH INTERNATIONAL PARALLEL AND DISTRIBUTED PROCESSING SYMPOSIUM WORKSHOPS (IPDPSW) SE IEEE International Symposium on Parallel and Distributed Processing Workshops LA English DT Proceedings Paper CT 30th IEEE International Parallel and Distributed Processing Symposium (IPDPS) CY MAY 23-27, 2016 CL Illinois Inst Technol, Chicago, IL SP IEEE, IEEE Comp Soc, Tech Comm Parallel Proc, ACM SIGARCH, IEEE Comp Soc Tech Comm Comp Architecture, IEEE Comp Soc Tech Comm Distributed Proc HO Illinois Inst Technol DE flow visualization; vector field data; parallel systems; scalability issues AB The algorithms foundational to visualization are central to the production visualization tools running at computing centers around the world and consume tremendous amounts of finite, limited resources. We believe that understanding the performance characteristics of these algorithms is critical in being good stewards of computational centers' resources. In this paper, we report initial studies on one such foundational algorithm: parallel particle advection. We have performed an extensive parameter study of the de facto standard algorithm that is commonly used in parallel production visualization tools as well as for in situ visualization environments. Our study has shown that the default parameters used in this algorithm lead to generally poor results, and identify settings that optimized performance on the system in our parameter sweep. C1 [Sisneros, Robert] Natl Ctr Supercomp Applicat, Urbana, IL 61801 USA. [Pugmire, David] Oak Ridge Natl Lab, Oak Ridge, TN USA. RP Sisneros, R (reprint author), Natl Ctr Supercomp Applicat, Urbana, IL 61801 USA. EM sisneros@illinois.edu; pugmire@ornl.gov NR 25 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2164-7062 BN 978-1-5090-3682-0 J9 IEEE SYM PARA DISTR PY 2016 BP 1058 EP 1067 DI 10.1109/IPDPSW.2016.173 PG 10 WC Computer Science, Hardware & Architecture; Computer Science, Theory & Methods SC Computer Science GA BG7FR UT WOS:000391253600126 ER PT S AU Jimenez, I Maltzahn, C Lofstead, J Moody, A Mohror, K Arpaci-Dusseau, R Arpaci-Dusseau, A AF Jimenez, Ivo Maltzahn, Carlos Lofstead, Jay Moody, Adam Mohror, Kathryn Arpaci-Dusseau, Remzi Arpaci-Dusseau, Andrea GP IEEE TI Characterizing and Reducing Cross-Platform Performance Variability Using OS-level Virtualization SO 2016 IEEE 30TH INTERNATIONAL PARALLEL AND DISTRIBUTED PROCESSING SYMPOSIUM WORKSHOPS (IPDPSW) SE IEEE International Symposium on Parallel and Distributed Processing Workshops LA English DT Proceedings Paper CT 30th IEEE International Parallel and Distributed Processing Symposium (IPDPS) CY MAY 23-27, 2016 CL Illinois Inst Technol, Chicago, IL SP IEEE, IEEE Comp Soc, Tech Comm Parallel Proc, ACM SIGARCH, IEEE Comp Soc Tech Comm Comp Architecture, IEEE Comp Soc Tech Comm Distributed Proc HO Illinois Inst Technol AB Independent validation of experimental results in the field of parallel and distributed systems research is a challenging task, mainly due to changes and differences in software and hardware in computational environments. In particular, when an experiment runs on different hardware than the one where it originally executed, predicting the differences in results is difficult. In this paper, we introduce an architecture-independent method for characterizing the performance of a machine by obtaining a profile (a vector of microbenchark results) that we use to quantify the variability between two hardware platforms. We propose the use of isolation features that OS-level virtualization offers to reduce the variability observed when validating application performance across multiple machines. Our results show that, using our variability characterization methodology, we can correctly predict the variability bounds of CPU-intensive applications, as well as reduce it by up to 2.8x if we make use of CPU bandwidth limitations, depending on the opcode mix of an application, as well as generational and architectural differences between two hardware platforms. C1 [Jimenez, Ivo; Maltzahn, Carlos] Univ Calif Santa Cruz, Santa Cruz, CA 95064 USA. [Lofstead, Jay] Sandia Natl Labs, Livermore, CA 94550 USA. [Moody, Adam; Mohror, Kathryn] Lawrence Livermore Natl Lab, Lawrence, KS USA. [Arpaci-Dusseau, Remzi; Arpaci-Dusseau, Andrea] Univ Wisconsin Madison, Madison, WI 53706 USA. RP Jimenez, I (reprint author), Univ Calif Santa Cruz, Santa Cruz, CA 95064 USA. EM ivo@cs.ucsc.edu; carlosm@cs.ucsc.edu; gflofst@sandia.gov; moody20@llnl.gov; kathryn@llnl.gov; remzi@cs.wisc.edu; dusseau@cs.wisc.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 2164-7062 BN 978-1-5090-3682-0 J9 IEEE SYM PARA DISTR PY 2016 BP 1077 EP 1080 DI 10.1109/IPDPSW.2016.97 PG 4 WC Computer Science, Hardware & Architecture; Computer Science, Theory & Methods SC Computer Science GA BG7FR UT WOS:000391253600129 ER PT S AU Hsu, CH Feng, WC AF Hsu, Chung-Hsing Feng, Wu-chun GP IEEE TI The Right Metric for Efficient Supercomputing: A Ten-Year Retrospective SO 2016 IEEE 30TH INTERNATIONAL PARALLEL AND DISTRIBUTED PROCESSING SYMPOSIUM WORKSHOPS (IPDPSW) SE IEEE International Symposium on Parallel and Distributed Processing Workshops LA English DT Proceedings Paper CT 30th IEEE International Parallel and Distributed Processing Symposium (IPDPS) CY MAY 23-27, 2016 CL Illinois Inst Technol, Chicago, IL SP IEEE, IEEE Comp Soc, Tech Comm Parallel Proc, ACM SIGARCH, IEEE Comp Soc Tech Comm Comp Architecture, IEEE Comp Soc Tech Comm Distributed Proc HO Illinois Inst Technol DE retrospective; metrics; energy efficiency; high performance computing AB About ten years ago, we presented the results of an effort to identify the "right metric" for efficient supercomputing at this workshop, The Workshop on High-Performance, Power-Aware Computing. In this paper, we review the advances that the community has made in this area of research. The intention of this ten-year retrospective is two-fold: (1) to acknowledge the past work through a historical narrative and (2) to highlight the essence of the remaining issues in this research. C1 [Hsu, Chung-Hsing] Oak Ridge Natl Lab, Comp Sci & Math Div, Oak Ridge, TN 37831 USA. [Feng, Wu-chun] Virginia Tech, Dept Comp Sci, Blacksburg, VA 24061 USA. RP Hsu, CH (reprint author), Oak Ridge Natl Lab, Comp Sci & Math Div, Oak Ridge, TN 37831 USA. EM hsuc@ornl.gov; feng@cs.vt.edu NR 25 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2164-7062 BN 978-1-5090-3682-0 J9 IEEE SYM PARA DISTR PY 2016 BP 1090 EP 1093 DI 10.1109/IPDPSW.2016.82 PG 4 WC Computer Science, Hardware & Architecture; Computer Science, Theory & Methods SC Computer Science GA BG7FR UT WOS:000391253600132 ER PT S AU Grant, RE Levenhagen, M Olivier, SL DeBonis, D Pedretti, K Laros, JH AF Grant, Ryan E. Levenhagen, Michael Olivier, Stephen L. DeBonis, David Pedretti, Kevin Laros, James H. I. I. I. I. GP IEEE TI Overcoming Challenges in Scalable Power Monitoring with the Power API SO 2016 IEEE 30TH INTERNATIONAL PARALLEL AND DISTRIBUTED PROCESSING SYMPOSIUM WORKSHOPS (IPDPSW) SE IEEE International Symposium on Parallel and Distributed Processing Workshops LA English DT Proceedings Paper CT 30th IEEE International Parallel and Distributed Processing Symposium (IPDPS) CY MAY 23-27, 2016 CL Illinois Inst Technol, Chicago, IL SP IEEE, IEEE Comp Soc, Tech Comm Parallel Proc, ACM SIGARCH, IEEE Comp Soc Tech Comm Comp Architecture, IEEE Comp Soc Tech Comm Distributed Proc HO Illinois Inst Technol AB Power will be a first-class operating constraint for Exascale computing. In order to manage power consumption of systems, measurement and control methods need to be developed. While several approaches have been developed by hardware manufacturers, they are vendor-specific and in some cases implementation-specific interfaces. Integrating all of the individual device level measurement and control functionality in a single system is a difficult task that requires system specific code. Sandia National Laboratories, in collaboration with many industry and academic partners, has developed a Power API specification, consisting of a broad range of interfaces spanning from low-level hardware to platform management and accounting. In order for many of the interfaces to be useful, especially at large scale, measurement data must be collected and control directives must be distributed in a scalable manner. This paper details the challenges of providing large scale power measurement and control and the scalable collection and control distribution architecture that is being integrated into the Power API reference implementation. C1 [Grant, Ryan E.; Levenhagen, Michael; Olivier, Stephen L.; DeBonis, David; Pedretti, Kevin; Laros, James H. I. I. I. I.] Ctr Res Comp, Sandia Natl Labs, POB 5800 MS-1110, Albuquerque, NM 87185 USA. RP Grant, RE (reprint author), Ctr Res Comp, Sandia Natl Labs, POB 5800 MS-1110, Albuquerque, NM 87185 USA. EM regrant@sandia.gov; mjleven@sandia.gov; slolivi@sandia.gov; ddeboni@sandia.gov; ktpedre@sandia.gov; jhlaros@sandia.gov 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 2164-7062 BN 978-1-5090-3682-0 J9 IEEE SYM PARA DISTR PY 2016 BP 1094 EP 1097 DI 10.1109/IPDPSW.2016.172 PG 4 WC Computer Science, Hardware & Architecture; Computer Science, Theory & Methods SC Computer Science GA BG7FR UT WOS:000391253600133 ER PT S AU Bates, N Hsu, CH Imam, N Wilde, T Sartor, D AF Bates, Natalie Hsu, Chung-Hsing Imam, Neena Wilde, Torsten Sartor, Dale GP IEEE TI Re-examining HPC Energy Efficiency Dashboard Elements SO 2016 IEEE 30TH INTERNATIONAL PARALLEL AND DISTRIBUTED PROCESSING SYMPOSIUM WORKSHOPS (IPDPSW) SE IEEE International Symposium on Parallel and Distributed Processing Workshops LA English DT Proceedings Paper CT 30th IEEE International Parallel and Distributed Processing Symposium (IPDPS) CY MAY 23-27, 2016 CL Illinois Inst Technol, Chicago, IL SP IEEE, IEEE Comp Soc, Tech Comm Parallel Proc, ACM SIGARCH, IEEE Comp Soc Tech Comm Comp Architecture, IEEE Comp Soc Tech Comm Distributed Proc HO Illinois Inst Technol DE energy; management; dashboard; data center AB With increasing high performance computing (HPC) energy consumption and the rising cost of energy, it has become important to be able to monitor and manage energy and power consumption. Dashboards will monitor and display energy and power consumption of various physical data center components in or near real time as well as trend data. The dashboard will display monitored, measured, and calculated parameters. A survey of the major United States Department of Energy (DOE) National Laboratory HPC data centers was completed in early 2012. Only a few DOE labs reported having energy performance dashboards and those were described as partial, piecemeal and under construction. As a result of the 2012 survey, the Energy Efficient HPC Working Group published recommendations for energy and power elements of an HPC data center dashboard. Another survey was recently completed as part of a 'Birds of Feather' Session at SC15. This survey tested the relevance of the recommendations. This paper provides an update on recommendations to help select or tailor the energy and power elements or parameters of an HPC data center dashboard. C1 [Bates, Natalie] Energy Efficient HPC Working Grp, Austin, TX 78758 USA. [Hsu, Chung-Hsing; Imam, Neena] Oak Ridge Natl Lab, Oak Ridge, TN USA. [Wilde, Torsten] Leibniz Supercomp Ctr LRZ, Munich, Germany. [Sartor, Dale] Lawrence Berkeley Natl Lab, Berkeley, CA USA. RP Bates, N (reprint author), Energy Efficient HPC Working Grp, Austin, TX 78758 USA. EM Natalie.jean.bates@gmail.com; hsuc@ornl.gov; imamn@ornl.gov; Torsten.Wilde@lrz.de; dasartor@lbl.gov 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 2164-7062 BN 978-1-5090-3682-0 J9 IEEE SYM PARA DISTR PY 2016 BP 1106 EP 1109 DI 10.1109/IPDPSW.2016.184 PG 4 WC Computer Science, Hardware & Architecture; Computer Science, Theory & Methods SC Computer Science GA BG7FR UT WOS:000391253600136 ER PT S AU Gholkar, N Mueller, F Rountree, B AF Gholkar, Neha Mueller, Frank Rountree, Barry GP IEEE TI A Power-aware Cost Model for HPC Procurement SO 2016 IEEE 30TH INTERNATIONAL PARALLEL AND DISTRIBUTED PROCESSING SYMPOSIUM WORKSHOPS (IPDPSW) SE IEEE International Symposium on Parallel and Distributed Processing Workshops LA English DT Proceedings Paper CT 30th IEEE International Parallel and Distributed Processing Symposium (IPDPS) CY MAY 23-27, 2016 CL Illinois Inst Technol, Chicago, IL SP IEEE, IEEE Comp Soc, Tech Comm Parallel Proc, ACM SIGARCH, IEEE Comp Soc Tech Comm Comp Architecture, IEEE Comp Soc Tech Comm Distributed Proc HO Illinois Inst Technol AB With the supercomputing community headed toward the era of exascale computing, power has become one of the foremost concern. Today's fastest supercomputer, Tianhe-2, already consumes 17.8MW to achieves a peak performance of 33.86PFlops [1]. At least an order of magnitude improvement in performance while maintaining the power envelope is required for exascale. Yet, manufacturing variations are increasingly creating a heterogeneous computing environment, even when identical processing components are deployed, particularly when operating under controlled power ceiling. This work contributes a procurement model to aid in the design of a capability system that achieves maximum performance while considering manufacturing variations. It appropriately partitions a single, compound system budget into the CAPEX (infrastructure cost) and the OPEX (operating power cost). Early results indicate that aggressive infrastructure procurement disregarding such operational needs can lead to severe performance degradation, or significant hidden operating cost will be incurred after procurement. C1 [Gholkar, Neha; Mueller, Frank] North Carolina State Univ, Raleigh, NC 27695 USA. [Rountree, Barry] Lawrence Livermore Natl Lab, Livermore, CA USA. RP Mueller, F (reprint author), North Carolina State Univ, Raleigh, NC 27695 USA. EM mueller@cs.ncsu.edu; rountreel@llnl.gov 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 2164-7062 BN 978-1-5090-3682-0 J9 IEEE SYM PARA DISTR PY 2016 BP 1110 EP 1113 DI 10.1109/IPDPSW.2016.35 PG 4 WC Computer Science, Hardware & Architecture; Computer Science, Theory & Methods SC Computer Science GA BG7FR UT WOS:000391253600137 ER PT S AU Ellsworth, D Patki, T Perarnau, S Seo, S Amer, A Zounmevo, J Gupta, R Yoshii, K Hoffman, H Malony, A Schulz, M Beckman, P AF Ellsworth, Daniel Patki, Tapasya Perarnau, Swann Seo, Sangmin Amer, Abdelhalim Zounmevo, Judicael Gupta, Rinku Yoshii, Kazutomo Hoffman, Henry Malony, Allen Schulz, Martin Beckman, Pete GP IEEE TI Systemwide Power Management with Argo SO 2016 IEEE 30TH INTERNATIONAL PARALLEL AND DISTRIBUTED PROCESSING SYMPOSIUM WORKSHOPS (IPDPSW) SE IEEE International Symposium on Parallel and Distributed Processing Workshops LA English DT Proceedings Paper CT 30th IEEE International Parallel and Distributed Processing Symposium (IPDPS) CY MAY 23-27, 2016 CL Illinois Inst Technol, Chicago, IL SP IEEE, IEEE Comp Soc, Tech Comm Parallel Proc, ACM SIGARCH, IEEE Comp Soc Tech Comm Comp Architecture, IEEE Comp Soc Tech Comm Distributed Proc HO Illinois Inst Technol AB The Argo project is a DOE initiative for designing a modular operating system/runtime for the next generation of supercomputers. A key focus area in this project is power management, which is one of the main challenges on the path to exascale. In this paper, we discuss ideas for systemwide power management in the Argo project. We present a hierarchical and scalable approach to maintain a power bound at scale, and we highlight some early results. C1 [Ellsworth, Daniel; Malony, Allen] Univ Oregon, Eugene, OR 97403 USA. [Patki, Tapasya; Schulz, Martin] Lawrence Livermore Natl Lab, Livermore, CA USA. [Perarnau, Swann; Seo, Sangmin; Amer, Abdelhalim; Zounmevo, Judicael; Gupta, Rinku; Yoshii, Kazutomo; Beckman, Pete] Argonne Natl Lab, Argonne, IL 60439 USA. [Hoffman, Henry] Univ Chicago, Chicago, IL 60637 USA. RP Ellsworth, D (reprint author), Univ Oregon, Eugene, OR 97403 USA. NR 27 TC 1 Z9 1 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2164-7062 BN 978-1-5090-3682-0 J9 IEEE SYM PARA DISTR PY 2016 BP 1118 EP 1121 DI 10.1109/IPDPSW.2016.81 PG 4 WC Computer Science, Hardware & Architecture; Computer Science, Theory & Methods SC Computer Science GA BG7FR UT WOS:000391253600139 ER PT S AU Walker, S McFadden, M AF Walker, Scott McFadden, Marty GP IEEE TI Best Practices for Scalable Power Measurement and Control SO 2016 IEEE 30TH INTERNATIONAL PARALLEL AND DISTRIBUTED PROCESSING SYMPOSIUM WORKSHOPS (IPDPSW) SE IEEE International Symposium on Parallel and Distributed Processing Workshops LA English DT Proceedings Paper CT 30th IEEE International Parallel and Distributed Processing Symposium (IPDPS) CY MAY 23-27, 2016 CL Illinois Inst Technol, Chicago, IL SP IEEE, IEEE Comp Soc, Tech Comm Parallel Proc, ACM SIGARCH, IEEE Comp Soc Tech Comm Comp Architecture, IEEE Comp Soc Tech Comm Distributed Proc HO Illinois Inst Technol DE Power; RAPL; Performance; Scalability; PCI Configuration Registers; Model Specific Registers AB There are thousands of specialized registers on modern processors which provide useful features such as power budgeting, thermal monitoring, and performance counting. These registers fall into two categories, model specific registers (MSRs) and configuration space registers (CSRs). Many of these registers, such as those supported by PAPI, help the high-performance computing (HPC) community analyze their program in order to maximize performance and use resources more efficiently. However, there are many MSRs and CSRs which are not supported by existing performance tools. The MSR kernel module provides access to all MSRs, but requires the user to be root. Users will typically want to access a handful of MSRs sequentially, but we found that the existing MSR module has far too much overhead. Just like MSRs, users need elevated privileges to access CSRs with utilities such as lspci. Simply allowing users to access all of the registers is out of the question because of the security risks involved. Furthermore, using these registers requires detailed knowledge of the architectural changes in addition to the manufacturer's proprietary ways of encoding the data. In this paper, we will describe a group of utilities developed at Lawrence Livermore National Laboratory to address these problems. Our Libmsr API solves the usability issues by providing a simplified interface to common tasks. The companion kernel module, MSR-SAFE, allows whitelisting MSRs for userspace access, plus provides an optimized way to access MSRs in batches. Our CSR-SAFE kernel module is a first of its kind utility to whitelist sections of the PCI configuration space, where CSRs reside, for userspace access. We demonstrate the abilities of Libmsr and MSR-SAFE by using the utilities to set various power limits on the NAS parallel benchmark MG. Experiments analyzing our optimizations show a maximum speedup of 26X, and approximately 2-8X on average for typical batches versus the stock MSR kernel module. Our utilities currently support most modern Intel processors. C1 [Walker, Scott; McFadden, Marty] Lawrence Livermore Natl Lab, Ctr Appl Sci Comp, Livermore, CA 94550 USA. RP Walker, S (reprint author), Lawrence Livermore Natl Lab, Ctr Appl Sci Comp, Livermore, CA 94550 USA. EM walker91@llnl.gov; mcfadden8@llnl.gov 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 2164-7062 BN 978-1-5090-3682-0 J9 IEEE SYM PARA DISTR PY 2016 BP 1122 EP 1131 DI 10.1109/IPDPSW.2016.91 PG 10 WC Computer Science, Hardware & Architecture; Computer Science, Theory & Methods SC Computer Science GA BG7FR UT WOS:000391253600140 ER PT S AU Marathe, A Gahvari, H Yeom, JS Bhatele, A AF Marathe, Aniruddha Gahvari, Hormozd Yeom, Jae-Seung Bhatele, Abhinav GP IEEE TI libPowerMon: A Lightweight Profiling Framework to Profile Program Context and System-level Metrics SO 2016 IEEE 30TH INTERNATIONAL PARALLEL AND DISTRIBUTED PROCESSING SYMPOSIUM WORKSHOPS (IPDPSW) SE IEEE International Symposium on Parallel and Distributed Processing Workshops LA English DT Proceedings Paper CT 30th IEEE International Parallel and Distributed Processing Symposium (IPDPS) CY MAY 23-27, 2016 CL Illinois Inst Technol, Chicago, IL SP IEEE, IEEE Comp Soc, Tech Comm Parallel Proc, ACM SIGARCH, IEEE Comp Soc Tech Comm Comp Architecture, IEEE Comp Soc Tech Comm Distributed Proc HO Illinois Inst Technol DE profiling; program context; power; thermal measurements; performance ID PERFORMANCE; PRECONDITIONERS AB As power becomes one of the most important resources to provision while building modern HPC systems and applications, it becomes crucial to obtain deeper insights into applications' power and thermal characteristics. There exists a need to correlate application context with processor-level and system-level power and thermal measurements. Existing profiling tools to monitor power and thermal measurements either operate at a granularity that is not fine enough to correlate with application-level events that describe application context or are not equipped to sample application-level events. In this work, we introduce libPowerMon, a lightweight user-level profiling framework to simultaneously sample user-specified application events and system-level metrics at up to 1 kHz sampling intervals. At the application level, libPowerMon provides a source-level phase markup interface to capture application context. It records MPI and OpenMP events, and samples processor state at a finer temporal granularity. At the system level, libPowerMon samples power and thermal characteristics and provides an interface to set processor and DRAM power. We present three case studies that demonstrate the benefits of libPowerMon in saving cluster-level power and improving application performance within a system-enforced power limit. C1 [Marathe, Aniruddha; Gahvari, Hormozd; Yeom, Jae-Seung; Bhatele, Abhinav] Lawrence Livermore Natl Lab, Ctr Appl Sci Comp, Livermore, CA 94551 USA. RP Marathe, A (reprint author), Lawrence Livermore Natl Lab, Ctr Appl Sci Comp, Livermore, CA 94551 USA. EM marathe1@llnl.gov; gahvari1@llnl.gov; yeom2@llnl.gov; bhatele@llnl.gov NR 28 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2164-7062 BN 978-1-5090-3682-0 J9 IEEE SYM PARA DISTR PY 2016 BP 1132 EP 1141 DI 10.1109/IPDPSW.2016.199 PG 10 WC Computer Science, Hardware & Architecture; Computer Science, Theory & Methods SC Computer Science GA BG7FR UT WOS:000391253600141 ER PT S AU Maiterth, M Schulz, M KranzImuller, D Rountree, B AF Maiterth, Matthias Schulz, Martin Kranzlmueller, Dieter Rountree, Barry GP IEEE TI Power Balancing in an Emulated Exascale Environment SO 2016 IEEE 30TH INTERNATIONAL PARALLEL AND DISTRIBUTED PROCESSING SYMPOSIUM WORKSHOPS (IPDPSW) SE IEEE International Symposium on Parallel and Distributed Processing Workshops LA English DT Proceedings Paper CT 30th IEEE International Parallel and Distributed Processing Symposium (IPDPS) CY MAY 23-27, 2016 CL Illinois Inst Technol, Chicago, IL SP IEEE, IEEE Comp Soc, Tech Comm Parallel Proc, ACM SIGARCH, IEEE Comp Soc Tech Comm Comp Architecture, IEEE Comp Soc Tech Comm Distributed Proc HO Illinois Inst Technol DE Exascale Emulation; Power Balancing; Power-Constrained HPC; RAPL; System Software; Tools AB Optimal utilization of power is a major concern for HPC, and is one of the focus points on the path towards exascale and approaches range from chip level to facility wide solutions. In order to evaluate the implications of these approaches and their impact on future system design, we need to understand their interaction with applications as well as their performance impact. In this work we describe the GREMLIN framework, a general framework to emulate system changes on existing platforms by resource restriction or event injection. We use this framework to understand the behavior of applications executed on power limited systems and to evaluate a solution for one of the problems resulting from operating under a power limit: the translation of manufacturing variability into heterogeneous performance, as observed in power limited HPC environments. We show that in a power limited environment manufacturing variability is a key source of performance imbalances and thus non-optimal execution. We propose a Power Balancer for redistribution of unused power and show performance gains of up to 1.5% at small to medium node counts. C1 [Maiterth, Matthias] Ludwig Maximilians Univ Munchen, MNM Team, Oettingenstr 67, D-80538 Munich, Germany. [Schulz, Martin; Rountree, Barry] Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94550 USA. [Kranzlmueller, Dieter] Leibniz Supercomp Ctr, MNM Team, Boltzmanstr 1, D-85748 Garching, Germany. RP Maiterth, M (reprint author), Ludwig Maximilians Univ Munchen, MNM Team, Oettingenstr 67, D-80538 Munich, Germany. EM maiterth@nm.ifi.lmu.de; schulzm@llnl.gov; kranzlmueller@lrz.de; rountree4@llnl.gov 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 2164-7062 BN 978-1-5090-3682-0 J9 IEEE SYM PARA DISTR PY 2016 BP 1142 EP 1149 DI 10.1109/IPDPSW.2016.142 PG 8 WC Computer Science, Hardware & Architecture; Computer Science, Theory & Methods SC Computer Science GA BG7FR UT WOS:000391253600142 ER PT S AU Strazdins, P Couturier, R Teranishi, K Gray, A Raubert, T Runger, G Yang, LT AF Strazdins, Peter Couturier, Raphael Teranishi, Keita Gray, Alan Raubert, Thomas Ruenger, Gudula Yang, Laurence T. GP IEEE TI Message from the PDSEC-16 Workshop Chairs SO 2016 IEEE 30TH INTERNATIONAL PARALLEL AND DISTRIBUTED PROCESSING SYMPOSIUM WORKSHOPS (IPDPSW) SE IEEE International Symposium on Parallel and Distributed Processing Workshops LA English DT Proceedings Paper CT 30th IEEE International Parallel and Distributed Processing Symposium (IPDPS) CY MAY 23-27, 2016 CL Illinois Inst Technol, Chicago, IL SP IEEE, IEEE Comp Soc, Tech Comm Parallel Proc, ACM SIGARCH, IEEE Comp Soc Tech Comm Comp Architecture, IEEE Comp Soc Tech Comm Distributed Proc HO Illinois Inst Technol C1 [Strazdins, Peter] Australian Natl Univ, Canberra, ACT 0200, Australia. [Couturier, Raphael] Univ Bourgogne, Franche Comte, France. [Gray, Alan] Univ Edinburgh, Edinburgh, Midlothian, Scotland. [Teranishi, Keita] Sandia Natl Labs, Livermore, CA 94550 USA. [Raubert, Thomas] Univ Bayreuth, Bayreuth, Germany. [Ruenger, Gudula] Cliemnitz Univ Technol, Chemnitz, Germany. [Yang, Laurence T.] St Francis Xavier Univ, Antigonish, NS, Canada. RP Strazdins, P (reprint author), Australian Natl Univ, Canberra, ACT 0200, Australia. NR 0 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2164-7062 BN 978-1-5090-3682-0 J9 IEEE SYM PARA DISTR PY 2016 BP 1200 EP 1201 DI 10.1109/IPDPSW.2016.241 PG 2 WC Computer Science, Hardware & Architecture; Computer Science, Theory & Methods SC Computer Science GA BG7FR UT WOS:000391253600148 ER PT S AU Humphrey, A Sunderland, D Harman, T Berzins, M AF Humphrey, Alan Sunderland, Daniel Harman, Todd Berzins, Martin GP IEEE TI Radiative Heat Transfer Calculation on 16384 GPUs Using a Reverse Monte Carlo Ray Tracing Approach with Adaptive Mesh Refinement SO 2016 IEEE 30TH INTERNATIONAL PARALLEL AND DISTRIBUTED PROCESSING SYMPOSIUM WORKSHOPS (IPDPSW) SE IEEE International Symposium on Parallel and Distributed Processing Workshops LA English DT Proceedings Paper CT 30th IEEE International Parallel and Distributed Processing Symposium (IPDPS) CY MAY 23-27, 2016 CL Illinois Inst Technol, Chicago, IL SP IEEE, IEEE Comp Soc, Tech Comm Parallel Proc, ACM SIGARCH, IEEE Comp Soc Tech Comm Comp Architecture, IEEE Comp Soc Tech Comm Distributed Proc HO Illinois Inst Technol DE Uintah; Radiation Modeling; Titan; Reverse Monte Carlo Ray Tracing; Mesh Refinement; GPU; Scalability ID CODE AB Modeling thermal radiation is computationally challenging in parallel due to its all-to-all physical and resulting computational connectivity, and is also the dominant mode of heat transfer in practical applications such as next-generation clean coal boilers, being modeled by the Uintah framework. However, a direct all-to-all treatment of radiation is prohibitively expensive on large computers systems whether homogeneous or heterogeneous. DOE Titan and the planned DOE Summit and Sierra machines are examples of current and emerging GPU-based heterogeneous systems where the increased processing capability of GPUs over CPUs exacerbates this problem. These systems require that computational frameworks like Uintah leverage an arbitrary number of on-node GPUs, while simultaneously utilizing thousands of GPUs within a single simulation. We show that radiative heat transfer problems can be made to scale within Uintah on heterogeneous systems through a combination of reverse Monte Carlo ray tracing (RMCRT) techniques combined with AMR, to reduce the amount of global communication. In particular, significant Uintah infrastructure changes, including a novel lock and contention-free, thread-scalable data structure for managing MPI communication requests and improved memory allocation strategies were necessary to achieve excellent strong scaling results to 16384 GPUs on Titan. C1 [Humphrey, Alan; Berzins, Martin] Univ Utah, Sci Comp & Imaging Inst, Salt Lake City, UT 84112 USA. [Sunderland, Daniel] Sandia Natl Labs, POB 5800,MS 1418, Albuquerque, NM 87175 USA. [Harman, Todd] Univ Utah, Dept Mech Engn, Salt Lake City, UT 84112 USA. RP Humphrey, A (reprint author), Univ Utah, Sci Comp & Imaging Inst, Salt Lake City, UT 84112 USA. EM ahumphrey@sci.utah.edu; dsunder@sandia.gov; t.harman@utah.edu; mb@sci.utah.edu NR 40 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2164-7062 BN 978-1-5090-3682-0 J9 IEEE SYM PARA DISTR PY 2016 BP 1222 EP 1231 DI 10.1109/IPDPSW.2016.93 PG 10 WC Computer Science, Hardware & Architecture; Computer Science, Theory & Methods SC Computer Science GA BG7FR UT WOS:000391253600151 ER PT S AU Strazdins, PE Ali, MM Debusschere, B AF Strazdins, Peter E. Ali, Md Mohsin Debusschere, Bert GP IEEE TI Application Fault Tolerance for Shrinking Resources via the Sparse Grid Combination Technique SO 2016 IEEE 30TH INTERNATIONAL PARALLEL AND DISTRIBUTED PROCESSING SYMPOSIUM WORKSHOPS (IPDPSW) SE IEEE International Symposium on Parallel and Distributed Processing Workshops LA English DT Proceedings Paper CT 30th IEEE International Parallel and Distributed Processing Symposium (IPDPS) CY MAY 23-27, 2016 CL Illinois Inst Technol, Chicago, IL SP IEEE, IEEE Comp Soc, Tech Comm Parallel Proc, ACM SIGARCH, IEEE Comp Soc Tech Comm Comp Architecture, IEEE Comp Soc Tech Comm Distributed Proc HO Illinois Inst Technol DE algorithm-based fault tolerance; ULFM; process failure recovery; PDE solvers; sparse grid combination technique; parallel computing; elasticity; cloud computing AB The need to make large-scale scientific simulations resilient to the shrinking and growing of compute resources arises from exascale computing and adverse operating conditions (fault tolerance). It can also arise from the cloud computing context where the cost of these resources can fluctuate. In this paper, we describe how the Sparse Grid Combination Technique can make such applications resilient to shrinking compute resources. The solution of the non-trivial issues of dealing with data redistribution and on-the-fly malleability of process grid information and ULFM MPI communicators are described. Results on a 2D advection solver indicate that process recovery time is significantly reduced from the alternate strategy where failed resources are replaced, overall execution time is actually improved from this case and for checkpointing and the execution error remains small, even when multiple failures occur. C1 [Strazdins, Peter E.; Ali, Md Mohsin] Australian Natl Univ, Res Sch Comp Sci, Canberra, ACT 0200, Australia. [Debusschere, Bert] Sandia Natl Labs, Combust Res Facil, Livermore, CA USA. RP Strazdins, PE (reprint author), Australian Natl Univ, Res Sch Comp Sci, Canberra, ACT 0200, Australia. EM Peter.Strazdins@cs.anu.edu.au; md.ali@anu.edu.au; bjdebus@sandia.gov 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 2164-7062 BN 978-1-5090-3682-0 J9 IEEE SYM PARA DISTR PY 2016 BP 1232 EP 1238 DI 10.1109/IPDPSW.2016.210 PG 7 WC Computer Science, Hardware & Architecture; Computer Science, Theory & Methods SC Computer Science GA BG7FR UT WOS:000391253600152 ER PT S AU Abdelfattah, A Haidar, A Tomov, S Dongarra, J AF Abdelfattah, Ahmad Haidar, Azzam Tomov, Stanimire Dongarra, Jack GP IEEE TI On the Development of Variable Size Batched Computation for Heterogeneous Parallel Architectures SO 2016 IEEE 30TH INTERNATIONAL PARALLEL AND DISTRIBUTED PROCESSING SYMPOSIUM WORKSHOPS (IPDPSW) SE IEEE International Symposium on Parallel and Distributed Processing Workshops LA English DT Proceedings Paper CT 30th IEEE International Parallel and Distributed Processing Symposium (IPDPS) CY MAY 23-27, 2016 CL Illinois Inst Technol, Chicago, IL SP IEEE, IEEE Comp Soc, Tech Comm Parallel Proc, ACM SIGARCH, IEEE Comp Soc Tech Comm Comp Architecture, IEEE Comp Soc Tech Comm Distributed Proc HO Illinois Inst Technol DE batched computation; GPUs; variable small sizes ID FRAMEWORK AB Many scientific applications, ranging from national security to medical advances, require solving a number of relatively small-size independent problems. As the size of each individual problem does not provide sufficient parallelism for the underlying hardware, especially accelerators, these problems must be solved concurrently as a batch in order to saturate the hardware with enough work, hence the name batched computation. A possible simplification is to assume a uniform size for all problems. However, real applications do not necessarily satisfy such assumption. Consequently, an efficient solution for variable-size batched computations is required. This paper proposes a foundation for high performance variable-size batched matrix computation based on Graphics Processing Units (GPUs). Being throughput-oriented processors, GPUs favor regular computation and less divergence among threads, in order to achieve high performance. Therefore, the development of high performance numerical software for this kind of problems is challenging. As a case study, we developed efficient batched Cholesky factorization algorithms for relatively small matrices of different sizes. However, most of the strategies and the software developed, and in particular a set of variable size batched BLAS kernels, can be used in many other dense matrix factorizations, large scale sparse direct multifrontal solvers, and applications. We propose new interfaces and mechanisms to handle the irregular computation pattern on the GPU. According to the authors' knowledge, this is the first attempt to develop high performance software for this class of problems. Using a K40c GPU, our performance tests show speedups of up to 2.5x against two Sandy Bridge CPUs (8-core each) running Intel MKL library. C1 [Abdelfattah, Ahmad; Haidar, Azzam; Tomov, Stanimire; Dongarra, Jack] Univ Tennessee, Innovat Comp Lab, Knoxville, TN 37996 USA. [Dongarra, Jack] Oak Ridge Natl Lab, Oak Ridge, TN USA. [Dongarra, Jack] Univ Manchester, Manchester, Lancs, England. RP Abdelfattah, A (reprint author), Univ Tennessee, Innovat Comp Lab, Knoxville, TN 37996 USA. EM ahmad@icl.utk.edu; haidar@icl.utk.edu; tomov@icl.utk.edu; dongarra@icl.utk.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 SN 2164-7062 BN 978-1-5090-3682-0 J9 IEEE SYM PARA DISTR PY 2016 BP 1249 EP 1258 DI 10.1109/IPDPSW.2016.190 PG 10 WC Computer Science, Hardware & Architecture; Computer Science, Theory & Methods SC Computer Science GA BG7FR UT WOS:000391253600154 ER PT S AU Sharma, VC Gopalakrishnan, G Krishnamoorthy, S AF Sharma, Vishal Chandra Gopalakrishnan, Ganesh Krishnamoorthy, Sriram GP IEEE TI Towards Resiliency Evaluation of Vector Programs SO 2016 IEEE 30TH INTERNATIONAL PARALLEL AND DISTRIBUTED PROCESSING SYMPOSIUM WORKSHOPS (IPDPSW) SE IEEE International Symposium on Parallel and Distributed Processing Workshops LA English DT Proceedings Paper CT 30th IEEE International Parallel and Distributed Processing Symposium (IPDPS) CY MAY 23-27, 2016 CL Illinois Inst Technol, Chicago, IL SP IEEE, IEEE Comp Soc, Tech Comm Parallel Proc, ACM SIGARCH, IEEE Comp Soc Tech Comm Comp Architecture, IEEE Comp Soc Tech Comm Distributed Proc HO Illinois Inst Technol AB The systems resilience research community has developed methods to manually insert additional source-program level assertions to trap errors, and also devised tools to conduct fault injection studies for scalar program codes. In this work, we contribute the first vector oriented LLVM-level fault injector VULFI to help study the effects of faults in vector architectures that are of growing importance, especially for vectorizing loops. Using VULFI, we conduct a resiliency study of nine real-world vector benchmarks using Intel's AVX and SSE extensions as the target vector instruction sets, and offer the first reported understanding of how faults affect vector instruction sets. We take this work further toward automating the insertion of resilience assertions during compilation. This is based on our observation that during intermediate (e.g., LLVM-level) code generation to handle full and partial vectorization, modern compilers exploit (and explicate in their code-documentation) critical invariants. These invariants are turned into error-checking code. We confirm the efficacy of these automatically inserted low-overhead error detectors for vectorized for loops. C1 [Sharma, Vishal Chandra; Gopalakrishnan, Ganesh] Univ Utah, Sch Comp, Salt Lake City, UT 84112 USA. [Krishnamoorthy, Sriram] Pacific Northwest Natl Lab, Richland, WA USA. RP Sharma, VC (reprint author), Univ Utah, Sch Comp, Salt Lake City, UT 84112 USA. EM vcsharma@cs.utah.edu; ganesh@cs.utah.edu; sriram@pnnl.gov NR 21 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2164-7062 BN 978-1-5090-3682-0 J9 IEEE SYM PARA DISTR PY 2016 BP 1319 EP 1328 DI 10.1109/IPDPSW.2016.187 PG 10 WC Computer Science, Hardware & Architecture; Computer Science, Theory & Methods SC Computer Science GA BG7FR UT WOS:000391253600162 ER PT S AU Papka, M AF Papka, Michael GP IEEE TI The Transformation of Supercomputing Facilities SO 2016 IEEE 30TH INTERNATIONAL PARALLEL AND DISTRIBUTED PROCESSING SYMPOSIUM WORKSHOPS (IPDPSW) SE IEEE International Symposium on Parallel and Distributed Processing Workshops LA English DT Proceedings Paper CT 30th IEEE International Parallel and Distributed Processing Symposium (IPDPS) CY MAY 23-27, 2016 CL Illinois Inst Technol, Chicago, IL SP IEEE, IEEE Comp Soc, Tech Comm Parallel Proc, ACM SIGARCH, IEEE Comp Soc Tech Comm Comp Architecture, IEEE Comp Soc Tech Comm Distributed Proc HO Illinois Inst Technol C1 [Papka, Michael] Argonne Natl Lab, Argonne, IL 60439 USA. RP Papka, M (reprint author), Argonne Natl Lab, Argonne, IL 60439 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 2164-7062 BN 978-1-5090-3682-0 J9 IEEE SYM PARA DISTR PY 2016 BP 1340 EP 1340 DI 10.1109/IPDPSW.2016.245 PG 1 WC Computer Science, Hardware & Architecture; Computer Science, Theory & Methods SC Computer Science GA BG7FR UT WOS:000391253600164 ER PT S AU Friese, RD AF Friese, Ryan D. GP IEEE TI Efficient Genetic Algorithm Encoding for Large-Scale Multi-Objective Resource Allocation SO 2016 IEEE 30TH INTERNATIONAL PARALLEL AND DISTRIBUTED PROCESSING SYMPOSIUM WORKSHOPS (IPDPSW) SE IEEE International Symposium on Parallel and Distributed Processing Workshops LA English DT Proceedings Paper CT 30th IEEE International Parallel and Distributed Processing Symposium (IPDPS) CY MAY 23-27, 2016 CL Illinois Inst Technol, Chicago, IL SP IEEE, IEEE Comp Soc, Tech Comm Parallel Proc, ACM SIGARCH, IEEE Comp Soc Tech Comm Comp Architecture, IEEE Comp Soc Tech Comm Distributed Proc HO Illinois Inst Technol DE large-scale computing; multi-objective optimization; energy-aware computing; heterogeneous computing; resource allocation ID HETEROGENEOUS COMPUTING SYSTEMS; MAKESPAN; OPTIMIZATION; TASKS AB Efficiently managing large-scale computing systems presents many challenging problems for system administrators. Such environments often consist of hundreds of thousands of processors, execute workloads with millions of tasks, and consume enormous amounts of energy. These sizes are going to further increase as the first exascale machines come online within the next decade. To effectively utilize such resources (in terms of both performance and energy consumption), it is imperative to design techniques to quickly and intelligently schedule tasks to machines. Further complicating matters is the heterogeneous nature most large-scale systems exhibit. Certain tasks may be more suited to run on certain architectures than others. Future schedulers need to be able to exploit this heterogeneity to produce task/machine mappings that are both energy efficient and achieve high performance. Genetic algorithms have successfully been applied to the task scheduling problem, but most implementations rely on a "task-based" structure that is linearly dependent on the number of tasks in the problem, making them infeasible for large-scale systems. In this paper, a new structure is presented that is highly scalable in terms of problem size, solution quality, and execution time. This new structure is compared to the existing task-based structure using a multi-objective genetic algorithm via a simulation study for a few example systems. C1 [Friese, Ryan D.] Pacific Northwest Natl Lab, Richland, WA 99354 USA. RP Friese, RD (reprint author), Pacific Northwest Natl Lab, Richland, WA 99354 USA. EM Ryan.Friese@pnnl.gov NR 33 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2164-7062 BN 978-1-5090-3682-0 J9 IEEE SYM PARA DISTR PY 2016 BP 1360 EP 1369 DI 10.1109/IPDPSW.2016.36 PG 10 WC Computer Science, Hardware & Architecture; Computer Science, Theory & Methods SC Computer Science GA BG7FR UT WOS:000391253600167 ER PT S AU Mandal, A Ruth, P Baldin, I Krol, D Juve, G Mayani, R da Silva, RF Deelman, E Meredith, J Vetter, J Lynch, V Mayer, B Wynne, J Blanco, M Carothers, C Lapre, J Tierney, B AF Mandal, Anirban Ruth, Paul Baldin, Ilya Krol, Dariusz Juve, Gideon Mayani, Rajiv da Silva, Rafael Ferreira Deelman, Ewa Meredith, Jeremy Vetter, Jeffrey Lynch, Vickie Mayer, Ben Wynne, James, III Blanco, Mark Carothers, Chris Lapre, Justin Tierney, Brian GP IEEE TI Toward an End-to-end Framework for Modeling, Monitoring and Anomaly Detection for Scientific Workflows SO 2016 IEEE 30TH INTERNATIONAL PARALLEL AND DISTRIBUTED PROCESSING SYMPOSIUM WORKSHOPS (IPDPSW) SE IEEE International Symposium on Parallel and Distributed Processing Workshops LA English DT Proceedings Paper CT 30th IEEE International Parallel and Distributed Processing Symposium (IPDPS) CY MAY 23-27, 2016 CL Illinois Inst Technol, Chicago, IL SP IEEE, IEEE Comp Soc, Tech Comm Parallel Proc, ACM SIGARCH, IEEE Comp Soc Tech Comm Comp Architecture, IEEE Comp Soc Tech Comm Distributed Proc HO Illinois Inst Technol DE scientific workflows; performance modeling; monitoring; anomaly detection ID MOLECULAR-DYNAMICS AB Modern science is often conducted on large scale, distributed, heterogeneous and high-performance computing infrastructures. Increasingly, the scale and complexity of both the applications and the underlying execution platforms have been growing. Scientific workflows have emerged as a flexible representation to declaratively express complex applications with data and control dependences. However, it is extremely challenging for scientists to execute their science workflows in a reliable and scalable way due to a lack of understanding of expected and realistic behavior of complex scientific workflows on large scale and distributed HPC systems. This is exacerbated by failures and anomalies in large scale systems and applications, which makes detecting, analyzing and acting on anomaly events challenging. In this work, we present a prototype of an end-to-end system for modeling and diagnosing the run-time performance of complex scientific workflows. We interfaced the Pegasus workflow management system, Aspen performance modeling, monitoring and anomaly detection into an integrated framework that not only improves the understanding of complex scientific applications on large scale complex infrastructure, but also detects anomalies and supports adaptivity. We present a black box modeling tool, a comprehensive online monitoring system, and anomaly detection algorithms that employ the models and monitoring data to detect anomaly events. We present an evaluation of the system with a Spallation Neutron Source workflow as a driving use case. C1 [Mandal, Anirban; Ruth, Paul; Baldin, Ilya] UNC, RENCI, Chapel Hill, NC 27514 USA. [Krol, Dariusz; Juve, Gideon; Mayani, Rajiv; da Silva, Rafael Ferreira; Deelman, Ewa] USC, Inst Informat Sci, Los Angeles, CA USA. [Meredith, Jeremy; Vetter, Jeffrey; Lynch, Vickie; Mayer, Ben; Wynne, James, III] Oak Ridge Natl Lab, Oak Ridge, TN USA. [Blanco, Mark; Carothers, Chris; Lapre, Justin] Rensselaer Polytech Inst, Troy, NY 12181 USA. [Tierney, Brian] LBL, Berkeley, CA USA. RP Mandal, A (reprint author), UNC, RENCI, Chapel Hill, NC 27514 USA. EM anirban@renci.org; pruth@renci.org; ibaldin@renci.org; darek@isi.edu; gideon@isi.edu; mayani@isi.edu; rafsilva@isi.edu; deelman@isi.edu; jsmeredith@ornl.gov; vetter@ornl.gov; lynchve@ornl.gov; mayerbw@ornl.gov; wynnejr@ornl.gov; blancm3@rpi.edu; chrisc@cs.rpi.edu; laprej@cs.rpi.edu; bltierney@es.net OI Ferreira da Silva, Rafael/0000-0002-1720-0928 NR 20 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2164-7062 BN 978-1-5090-3682-0 J9 IEEE SYM PARA DISTR PY 2016 BP 1370 EP 1379 DI 10.1109/IPDPSW.2016.202 PG 10 WC Computer Science, Hardware & Architecture; Computer Science, Theory & Methods SC Computer Science GA BG7FR UT WOS:000391253600168 ER PT S AU Barker, KJ Kerbyson, DJ AF Barker, Kevin J. Kerbyson, Darren J. GP IEEE TI Modeling the Performance and Energy Impact of Dynamic Power Steering SO 2016 IEEE 30TH INTERNATIONAL PARALLEL AND DISTRIBUTED PROCESSING SYMPOSIUM WORKSHOPS (IPDPSW) SE IEEE International Symposium on Parallel and Distributed Processing Workshops LA English DT Proceedings Paper CT 30th IEEE International Parallel and Distributed Processing Symposium (IPDPS) CY MAY 23-27, 2016 CL Illinois Inst Technol, Chicago, IL SP IEEE, IEEE Comp Soc, Tech Comm Parallel Proc, ACM SIGARCH, IEEE Comp Soc Tech Comm Comp Architecture, IEEE Comp Soc Tech Comm Distributed Proc HO Illinois Inst Technol DE Energy-efficient computing; large-scale systems; Dynamic Power Steering; input-driven execution; dynamic workloads; analytical modeling AB Achieving high performance has traditionally been the primary goal of large-scale system design. However, future systems will place an increasing emphasis on energy efficiency. Coarse tools are available today to reduce the energy consumption of system components that are not on the performance critical path, but we expect future systems to make use of fine-grained power scaling and gating features to make the most efficient use of tightly constrained power budgets. The tools to effectively utilize these mechanisms, however, remain largely undeveloped. Dynamic Power Steering is one such methodology for dynamically routing power across an imbalanced system to resources where it can make the most impact. With Dynamic Power Steering, a heuristic algorithm assigns processor cores to available p-states (i.e., power states) in order to optimize energy consumption while maintaining performance levels. In this work, we present a modeling methodology that quantifies the impact Dynamic Power Steering will have on both performance and overall energy usage. This modeling methodology is applicable to both current and future large-scale systems capable of providing fine-grained power scaling. Using synthetic workloads that can be tuned to capture a wide variety of application behaviors, we validate the resulting models and pinpoint areas in which further performance and energy efficiency gains are possible. C1 [Barker, Kevin J.; Kerbyson, Darren J.] Pacific Northwest Natl Lab, Performance & Architecture Lab, Richland, WA 99352 USA. RP Barker, KJ (reprint author), Pacific Northwest Natl Lab, Performance & Architecture Lab, Richland, WA 99352 USA. EM Kevin.Barker@pnnl.gov; Darren.Kerbyson@pnnl.gov NR 20 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2164-7062 BN 978-1-5090-3682-0 J9 IEEE SYM PARA DISTR PY 2016 BP 1380 EP 1389 DI 10.1109/IPDPSW.2016.209 PG 10 WC Computer Science, Hardware & Architecture; Computer Science, Theory & Methods SC Computer Science GA BG7FR UT WOS:000391253600169 ER PT S AU Chelmis, C Choudhury, S Pal, A Panangadan, A Tong, WQ Xia, YL AF Chelmis, Charalampos Choudhury, Sutanay Pal, Arindam Panangadan, Anand Tong, Weiqin Xia, Yinglong GP IEEE TI The 5th International Workshop on Parallel and Distributed Computing for Large Scale Machine Learning and Big Data Analytics (ParLearning 2016) In Conjunction with IPDPS 2016, Chicago, USA, May 27, 2016 SO 2016 IEEE 30TH INTERNATIONAL PARALLEL AND DISTRIBUTED PROCESSING SYMPOSIUM WORKSHOPS (IPDPSW) SE IEEE International Symposium on Parallel and Distributed Processing Workshops LA English DT Proceedings Paper CT 30th IEEE International Parallel and Distributed Processing Symposium (IPDPS) CY MAY 23-27, 2016 CL Illinois Inst Technol, Chicago, IL SP IEEE, IEEE Comp Soc, Tech Comm Parallel Proc, ACM SIGARCH, IEEE Comp Soc Tech Comm Comp Architecture, IEEE Comp Soc Tech Comm Distributed Proc HO Illinois Inst Technol C1 [Chelmis, Charalampos] Univ Southern Calif, Los Angeles, CA 90007 USA. [Choudhury, Sutanay] Pacific Northwest Natl Lab, Richland, WA USA. [Pal, Arindam] TCS Innovat Labs, Bangalore, Karnataka, India. [Panangadan, Anand] Calif State Univ Fullerton, Fullerton, CA 92634 USA. [Tong, Weiqin] Shanghai Univ, Shanghai, Peoples R China. [Xia, Yinglong] Huawei Res, Los Angeles, CA USA. RP Chelmis, C (reprint author), Univ Southern Calif, Los Angeles, CA 90007 USA. NR 0 TC 0 Z9 0 U1 4 U2 4 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2164-7062 BN 978-1-5090-3682-0 J9 IEEE SYM PARA DISTR PY 2016 BP 1390 EP 1391 DI 10.1109/IPDPSW.2016.246 PG 2 WC Computer Science, Hardware & Architecture; Computer Science, Theory & Methods SC Computer Science GA BG7FR UT WOS:000391253600170 ER PT S AU Gittens, A Kottalam, J Yang, JY Ringenburg, MF Chhugani, J Racah, E Singh, M Yao, Y Fischer, C Ruebel, O Bowen, B Lewis, NG Mahoney, MW Krishnamurthy, V Prabhat AF Gittens, Alex Kottalam, Jey Yang, Jiyan Ringenburg, Michael F. Chhugani, Jatin Racah, Evan Singh, Mohitdeep Yao, Yushu Fischer, Curt Ruebel, Oliver Bowen, Benjamin Lewis, Norman G. Mahoney, Michael W. Krishnamurthy, Venkat Prabhat GP IEEE TI A multi-platform evaluation of the randomized CX low-rank matrix factorization in Spark SO 2016 IEEE 30TH INTERNATIONAL PARALLEL AND DISTRIBUTED PROCESSING SYMPOSIUM WORKSHOPS (IPDPSW) SE IEEE International Symposium on Parallel and Distributed Processing Workshops LA English DT Proceedings Paper CT 30th IEEE International Parallel and Distributed Processing Symposium (IPDPS) CY MAY 23-27, 2016 CL Illinois Inst Technol, Chicago, IL SP IEEE, IEEE Comp Soc, Tech Comm Parallel Proc, ACM SIGARCH, IEEE Comp Soc Tech Comm Comp Architecture, IEEE Comp Soc Tech Comm Distributed Proc HO Illinois Inst Technol DE matrix factorization; data analytics; high performance computing ID DECOMPOSITIONS; ALGORITHMS AB We investigate the performance and scalability of the randomized CX low-rank matrix factorization and demonstrate its applicability through the analysis of a 1TB mass spectrometry imaging (MSI) dataset, using Apache Spark on an Amazon EC2 cluster, a Cray XC40 system, and an experimental Cray cluster. We implemented this factorization both as a parallelized C implementation with hand-tuned optimizations and in Scala using the Apache Spark high-level cluster computing framework. We obtained consistent performance across the three platforms: using Spark we were able to process the 1TB size dataset in under 30 minutes with 960 cores on all systems, with the fastest times obtained on the experimental Cray cluster. In comparison, the C implementation processed the 1TB size dataset 21X faster on the Amazon EC2 system, due to careful cache optimizations, bandwidth-friendly access of matrices and vector computation using SIMD units. We report these results and their implications on the hardware and software issues arising in supporting data-centric workloads in parallel and distributed environments. C1 [Gittens, Alex; Mahoney, Michael W.] Univ Calif Berkeley, ICSI, Berkeley, CA 94720 USA. [Gittens, Alex; Mahoney, Michael W.] Univ Calif Berkeley, Dept Stat, Berkeley, CA 94720 USA. [Kottalam, Jey] Univ Calif Berkeley, Berkeley Inst Data Sci, Berkeley, CA 94720 USA. [Kottalam, Jey] Univ Calif Berkeley, EECS, Berkeley, CA 94720 USA. [Yang, Jiyan] Stanford Univ, ICME, Stanford, CA 94305 USA. [Ringenburg, Michael F.] Cray Inc, Eagan, MN USA. [Chhugani, Jatin] HiPerform Inc, Norco, CA USA. [Racah, Evan; Yao, Yushu; Prabhat] Lawrence Berkeley Natl Lab, NERSC Div, Berkeley, CA USA. [Singh, Mohitdeep] Georgia Inst Technol, Atlanta, GA 30332 USA. [Fischer, Curt; Bowen, Benjamin] Lawrence Berkeley Natl Lab, Div Life Sci, Berkeley, CA USA. [Ruebel, Oliver] Lawrence Berkeley Natl Lab, Computat Res Div, Berkeley, CA USA. [Lewis, Norman G.] Washington State Univ, Inst Biol Chem, Pullman, WA 99164 USA. RP Gittens, A (reprint author), Univ Calif Berkeley, ICSI, Berkeley, CA 94720 USA.; Gittens, A (reprint author), Univ Calif Berkeley, Dept Stat, Berkeley, CA 94720 USA. EM gittens@icsi.berkeley.edu; jey@berkeley.edu; jiyan@stanford.edu; mikeri@cray.com; jatinch@gmail.com; eracah@lbl.gov; msingh84@gatech.edu; yyao@lbl.gov; crfischer@lbl.gov; oruebel@lbl.gov; bpbowen@lbl.gov; lewisn@wsu.edu; mmahoney@stat.berkeley.edu; venkat@cray.com; prabhat@lbl.gov NR 21 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2164-7062 BN 978-1-5090-3682-0 J9 IEEE SYM PARA DISTR PY 2016 BP 1403 EP 1412 DI 10.1109/IPDPSW.2016.114 PG 10 WC Computer Science, Hardware & Architecture; Computer Science, Theory & Methods SC Computer Science GA BG7FR UT WOS:000391253600173 ER PT S AU Chavarria-Miranda, D Castellana, VG Morari, A Haglin, D Feo, J AF Chavarria-Miranda, Daniel Castellana, Vito Giovanni Morari, Alessandro Haglin, David Feo, John GP IEEE TI GraQL: A Query Language for High-Performance Attributed Graph Databases SO 2016 IEEE 30TH INTERNATIONAL PARALLEL AND DISTRIBUTED PROCESSING SYMPOSIUM WORKSHOPS (IPDPSW) SE IEEE International Symposium on Parallel and Distributed Processing Workshops LA English DT Proceedings Paper CT 30th IEEE International Parallel and Distributed Processing Symposium (IPDPS) CY MAY 23-27, 2016 CL Illinois Inst Technol, Chicago, IL SP IEEE, IEEE Comp Soc, Tech Comm Parallel Proc, ACM SIGARCH, IEEE Comp Soc Tech Comm Comp Architecture, IEEE Comp Soc Tech Comm Distributed Proc HO Illinois Inst Technol AB Graph databases are becoming a critical tool for the analysis of graph-structured data in the context of multiple scientific and technical domains, including cybersecurity and computational biology. In particular, the storage, analysis and querying of attributed graphs is a very important capability. Attributed graphs contain properties attached to the vertices and edges of the graph structure. Queries over attributed graphs do not only include structural pattern matching, but also conditions over the values of the attributes. In this work, we present GraQL, a query language designed for high-performance attributed graph databases hosted on a high memory capacity cluster. GraQL is designed to be the front-end language for the attributed graph data model for the GEMS database system. C1 [Chavarria-Miranda, Daniel; Castellana, Vito Giovanni; Morari, Alessandro; Haglin, David; Feo, John] PNNL, Phys & Computat Sci Directorate, Richland, WA 99354 USA. RP Chavarria-Miranda, D (reprint author), PNNL, Phys & Computat Sci Directorate, Richland, WA 99354 USA. EM daniel.chavarria@pnnl.gov; vitogiovanni.castellana@pnnl.gov; alessandro.morari@pnnl.gov; david.haglin@pnnl.gov; john.feo@pnnl.gov 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 2164-7062 BN 978-1-5090-3682-0 J9 IEEE SYM PARA DISTR PY 2016 BP 1453 EP 1462 DI 10.1109/IPDPSW.2016.216 PG 10 WC Computer Science, Hardware & Architecture; Computer Science, Theory & Methods SC Computer Science GA BG7FR UT WOS:000391253600178 ER PT S AU Roy, A Balaprakash, P Hovland, PD Wild, SM AF Roy, Amit Balaprakash, Prasanna Hovland, Paul D. Wild, Stefan M. GP IEEE TI Exploiting performance portability in search algorithms for autotuning SO 2016 IEEE 30TH INTERNATIONAL PARALLEL AND DISTRIBUTED PROCESSING SYMPOSIUM WORKSHOPS (IPDPSW) SE IEEE International Symposium on Parallel and Distributed Processing Workshops LA English DT Proceedings Paper CT 30th IEEE International Parallel and Distributed Processing Symposium (IPDPS) CY MAY 23-27, 2016 CL Illinois Inst Technol, Chicago, IL SP IEEE, IEEE Comp Soc, Tech Comm Parallel Proc, ACM SIGARCH, IEEE Comp Soc Tech Comm Comp Architecture, IEEE Comp Soc Tech Comm Distributed Proc HO Illinois Inst Technol DE Autotuning; Empirical search heuristics; Performance portability ID OPTIMIZATION AB Autotuning seeks the best configuration of an application by orchestrating hardware and software knobs that affect performance on a given machine. Autotuners adopt various search techniques to efficiently find the best configuration, but they often ignore lessons learned on one machine when tuning for another machine. We demonstrate that a surrogate model built from performance results on one machine can speedup the autotuning search by 1.6X to 130X on a variety of modern architectures. C1 [Roy, Amit] Univ Utah, Sch Comp, Salt Lake City, UT 84112 USA. [Roy, Amit; Balaprakash, Prasanna; Hovland, Paul D.; Wild, Stefan M.] Argonne Natl Lab, Math & Comp Sci Div, Lemont, IL 60439 USA. RP Roy, A (reprint author), Univ Utah, Sch Comp, Salt Lake City, UT 84112 USA.; Roy, A (reprint author), Argonne Natl Lab, Math & Comp Sci Div, Lemont, IL 60439 USA. EM aroy@cs.utah.edu; pbalapra@anl.gov; hovland@anl.gov; wild@anl.gov RI Wild, Stefan/P-4907-2016 OI Wild, Stefan/0000-0002-6099-2772 NR 33 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2164-7062 BN 978-1-5090-3682-0 J9 IEEE SYM PARA DISTR PY 2016 BP 1535 EP 1544 DI 10.1109/IPDPSW.2016.85 PG 10 WC Computer Science, Hardware & Architecture; Computer Science, Theory & Methods SC Computer Science GA BG7FR UT WOS:000391253600189 ER PT S AU Luszczek, P Gates, M Kurzak, J Danalis, A Dongarra, J AF Luszczek, Piotr Gates, Mark Kurzak, Jakub Danalis, Anthony Dongarra, Jack GP IEEE TI Search Space Generation and Pruning System for Autotuners SO 2016 IEEE 30TH INTERNATIONAL PARALLEL AND DISTRIBUTED PROCESSING SYMPOSIUM WORKSHOPS (IPDPSW) SE IEEE International Symposium on Parallel and Distributed Processing Workshops LA English DT Proceedings Paper CT 30th IEEE International Parallel and Distributed Processing Symposium (IPDPS) CY MAY 23-27, 2016 CL Illinois Inst Technol, Chicago, IL SP IEEE, IEEE Comp Soc, Tech Comm Parallel Proc, ACM SIGARCH, IEEE Comp Soc Tech Comm Comp Architecture, IEEE Comp Soc Tech Comm Distributed Proc HO Illinois Inst Technol ID CODE GENERATION AB This work tackles two simultaneous challenges faced by autotuners: the ease of describing a complex, multidimensional search space, and the speed of evaluating that space, while applying a multitude of pruning constraints. This article presents a declarative notation for describing a search space and a translation system for conversion to a standard C code for fast and multithreaded, as necessary, evaluation. The notation is Python-based and thus simple in syntax and easy to assimilate by the user interested in tuning rather than learning a new programming language. A large number of dimensions and a large number of pruning constraints may be expressed with little effort. The system is discussed in the context of autotuning the canonical matrix multiplication kernel for NVIDIA GPUs, where the search space has 15 dimensions and involves application of 10 complex pruning constrains. The speed of evaluation is compared against generators created using imperative programming style in various scripting and compiled languages. C1 [Luszczek, Piotr; Gates, Mark; Kurzak, Jakub; Danalis, Anthony; Dongarra, Jack] Univ Tennessee, Knoxville, TN 37996 USA. [Dongarra, Jack] Oak Ridge Natl Lab, Oak Ridge, TN USA. [Dongarra, Jack] Univ Manchester, Manchester M13 9PL, Lancs, England. RP Luszczek, P (reprint author), Univ Tennessee, Knoxville, TN 37996 USA. 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 SN 2164-7062 BN 978-1-5090-3682-0 J9 IEEE SYM PARA DISTR PY 2016 BP 1545 EP 1554 DI 10.1109/IPDPSW.2016.197 PG 10 WC Computer Science, Hardware & Architecture; Computer Science, Theory & Methods SC Computer Science GA BG7FR UT WOS:000391253600190 ER PT S AU Sehrish, S Kowalkowski, J Paterno, M AF Sehrish, Saba Kowalkowski, Jim Paterno, Marc GP IEEE TI Exploring the Performance of Spark for a Scientific Use Case SO 2016 IEEE 30TH INTERNATIONAL PARALLEL AND DISTRIBUTED PROCESSING SYMPOSIUM WORKSHOPS (IPDPSW) SE IEEE International Symposium on Parallel and Distributed Processing Workshops LA English DT Proceedings Paper CT 30th IEEE International Parallel and Distributed Processing Symposium (IPDPS) CY MAY 23-27, 2016 CL Illinois Inst Technol, Chicago, IL SP IEEE, IEEE Comp Soc, Tech Comm Parallel Proc, ACM SIGARCH, IEEE Comp Soc Tech Comm Comp Architecture, IEEE Comp Soc Tech Comm Distributed Proc HO Illinois Inst Technol AB We present an evaluation of the performance of a Spark implementation of a classification algorithm in the domain of High Energy Physics (HEP). Spark is a general engine for in-memory, large-scale data processing, and is designed for applications where similar repeated analysis is performed on the same large data sets. Classification problems are one of the most common and critical data processing tasks across many domains. Many of these data processing tasks are both computation-and data-intensive, involving complex numerical computations employing extremely large data sets. We evaluated the performance of the Spark implementation on Cori, a NERSC resource, and compared the results to an untuned MPI implementation of the same algorithm. While the Spark implementation scaled well, it is not competitive in speed to our MPI implementation, even when using significantly greater computational resources. C1 [Sehrish, Saba; Kowalkowski, Jim; Paterno, Marc] Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA. RP Sehrish, S (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA. EM ssehrish@fnal.gov; jbk@fnal.gov; paterno@fnal.gov 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 2164-7062 BN 978-1-5090-3682-0 J9 IEEE SYM PARA DISTR PY 2016 BP 1653 EP 1659 DI 10.1109/IPDPSW.2016.83 PG 7 WC Computer Science, Hardware & Architecture; Computer Science, Theory & Methods SC Computer Science GA BG7FR UT WOS:000391253600203 ER PT S AU Allan, B Brandt, J Gentile, A Lueninghoener, C Naksinehaboon, N Norris, B Taerat, N Alam, S Anderson, J Besnard, JB Bhatele, A Chongstitvatana, J Cook, J Gamblin, T Gottumukkala, R Jacobsen, D Jagode, H Jeannot, E Kowalkowski, J Lan, ZL Mason, M Milner, R Neeman, H Ong, HH Paterno, M Rashti, MJ Schulz, M Sharifi, H Showerman, M Thompson, D Tucker, T Wernli, F Wilson, L Zheng, Z Zincir-Heywood, N AF Allan, Benjamin Brandt, Jim Gentile, Ann Lueninghoener, Cory Naksinehaboon, Nichamon Norris, Boyana Taerat, Narate Alam, Sadaf Anderson, Jonathon Besnard, Jean-Baptiste Bhatele, Abhinav Chongstitvatana, Jaruloj Cook, Jon Gamblin, Todd Gottumukkala, Raju Jacobsen, Doug Jagode, Heike Jeannot, Emmanuel Kowalkowski, James Lan, Zhiling Mason, Mike Milner, Ryan Neeman, Henry Ong, Hong H. Paterno, Marc Rashti, Mohammad Javad Schulz, Martin Sharifi, Hadi Showerman, Mike Thompson, David Tucker, Tom Wernli, Fabien Wilson, Loren Zheng, Ziming Zincir-Heywood, Nur CA Organizing Comm Program Comm GP IEEE TI Workshop on Monitoring and Analysis for High Performance Computing Systems Plus Applications (HPCMASPA) SO 2016 IEEE 30TH INTERNATIONAL PARALLEL AND DISTRIBUTED PROCESSING SYMPOSIUM WORKSHOPS (IPDPSW) SE IEEE International Symposium on Parallel and Distributed Processing Workshops LA English DT Proceedings Paper CT 30th IEEE International Parallel and Distributed Processing Symposium (IPDPS) CY MAY 23-27, 2016 CL Illinois Inst Technol, Chicago, IL SP IEEE, IEEE Comp Soc, Tech Comm Parallel Proc, ACM SIGARCH, IEEE Comp Soc Tech Comm Comp Architecture, IEEE Comp Soc Tech Comm Distributed Proc HO Illinois Inst Technol C1 [Allan, Benjamin; Brandt, Jim; Gentile, Ann] Sandia Natl Labs, Livermore, CA 94550 USA. [Lueninghoener, Cory] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Naksinehaboon, Nichamon; Taerat, Narate; Tucker, Tom] Open Grid Comp, Austin, TX USA. [Norris, Boyana] Univ Oregon, Eugene, OR 97403 USA. [Alam, Sadaf] CSCS, Swiss Natl Supercomp Ctr, Lugano, Switzerland. [Anderson, Jonathon] Univ Colorado Boulder, Boulder, CO 80309 USA. [Besnard, Jean-Baptiste] ParaTools, Bruyeres Le Chatel, France. [Bhatele, Abhinav; Gamblin, Todd; Schulz, Martin] Lawrence Livermore Natl Lab LLNL, Livermore, CA 94550 USA. [Chongstitvatana, Jaruloj] Chulalongkorn Univ, Bangkok, Thailand. [Cook, Jon] New Mexico State Univ, Las Cruces, NM 88003 USA. [Gottumukkala, Raju] Univ Louisiana Lafayette, Lafayette, LA 70504 USA. [Jacobsen, Doug] NERSC, Natl Energy Res Sci Comp Ctr, Berkeley, CA USA. [Jagode, Heike] Univ Tennessee, ICL, Knoxville, TN 37996 USA. [Jeannot, Emmanuel] INRIA, Rocquencourt, France. [Kowalkowski, James; Paterno, Marc] Fermilab Natl Accelerator Lab, Batavia, IL USA. [Lan, Zhiling] IIT, Chicago, IL 60616 USA. [Mason, Mike] Los Alamos Natl Lab LANL, Los Alamos, NM USA. [Milner, Ryan] Argonne Natl Lab, Argonne, IL 60439 USA. [Neeman, Henry] Univ Oklahoma, Supercomp Ctr Educ & Res, Norman, OK 73019 USA. [Ong, Hong H.] MIMOS Berhad, Kuala Lumpur, Malaysia. [Rashti, Mohammad Javad] RNET Technol Inc, Dayton, OH USA. [Sharifi, Hadi] Intel Corp, Santa Clara, CA 95051 USA. [Showerman, Mike] Natl Ctr Supercomp Applicat NCSA, Urbana, IL USA. [Thompson, David] Kitware, Clifton Pk, NY USA. [Wernli, Fabien] CCIN2P3, Natl Inst Nucl Phys & Particle Phys, Comp Ctr, Villeurbanne, France. [Wilson, Loren] Ericsson, Dallas, TX USA. [Zheng, Ziming] HP Vertica, Cambridge, MA USA. [Zincir-Heywood, Nur] Dalhousie Univ, Halifax, NS B3H 3J5, Canada. RP Allan, B (reprint author), Sandia Natl Labs, Livermore, CA 94550 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 2164-7062 BN 978-1-5090-3682-0 J9 IEEE SYM PARA DISTR PY 2016 BP 1665 EP 1666 DI 10.1109/IPDPSW.2016.253 PG 2 WC Computer Science, Hardware & Architecture; Computer Science, Theory & Methods SC Computer Science GA BG7FR UT WOS:000391253600205 ER PT S AU Agelastos, A AF Agelastos, Anthony GP IEEE TI Defining Metrics to Distill Large-Scale HPC Platform and Application Performance Data into Actionable Quantities SO 2016 IEEE 30TH INTERNATIONAL PARALLEL AND DISTRIBUTED PROCESSING SYMPOSIUM WORKSHOPS (IPDPSW) SE IEEE International Symposium on Parallel and Distributed Processing Workshops LA English DT Proceedings Paper CT 30th IEEE International Parallel and Distributed Processing Symposium (IPDPS) CY MAY 23-27, 2016 CL Illinois Inst Technol, Chicago, IL SP IEEE, IEEE Comp Soc, Tech Comm Parallel Proc, ACM SIGARCH, IEEE Comp Soc Tech Comm Comp Architecture, IEEE Comp Soc Tech Comm Distributed Proc HO Illinois Inst Technol DE metric; application monitoring; system monitoring; actionable metrics; resource contention AB Application performance data accounting for resource contention and other external influences is highly coveted and extremely difficult to obtain. "Why did my application's performance change from the last time it ran?" is a question shared by application developers, program analysts, and system administrators. The answer to this question impacts nearly all programmatic and R&D efforts related to high-performance computing (HPC). Lightweight, right-fidelity monitoring infrastructures that can gather relevant application and resource performance data across the entire HPC platform can help address this research topic. This short technical paper will formally define an ongoing research effort to define the needed metrics and methods that distill the vast quantities of available data to a minimum set of actionable and interpretable quantities that can be used by application developers, system administrators, production analysts, and HPC platform designers for their respective production and R&D focus areas. C1 [Agelastos, Anthony] Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. RP Agelastos, A (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. EM amagela@sandia.gov 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 2164-7062 BN 978-1-5090-3682-0 J9 IEEE SYM PARA DISTR PY 2016 BP 1687 EP 1691 DI 10.1109/IPDPSW.2016.144 PG 5 WC Computer Science, Hardware & Architecture; Computer Science, Theory & Methods SC Computer Science GA BG7FR UT WOS:000391253600209 ER PT S AU Grubel, P Kaiser, H Huck, K Cook, J AF Grubel, Patricia Kaiser, Hartmut Huck, Kevin Cook, Jeanine GP IEEE TI Using Intrinsic Performance Counters to Assess Efficiency in Task-based Parallel Applications SO 2016 IEEE 30TH INTERNATIONAL PARALLEL AND DISTRIBUTED PROCESSING SYMPOSIUM WORKSHOPS (IPDPSW) SE IEEE International Symposium on Parallel and Distributed Processing Workshops LA English DT Proceedings Paper CT 30th IEEE International Parallel and Distributed Processing Symposium (IPDPS) CY MAY 23-27, 2016 CL Illinois Inst Technol, Chicago, IL SP IEEE, IEEE Comp Soc, Tech Comm Parallel Proc, ACM SIGARCH, IEEE Comp Soc Tech Comm Comp Architecture, IEEE Comp Soc Tech Comm Distributed Proc HO Illinois Inst Technol DE runtime instrumentation; performance counters; execution monitoring; HPX; task-based parallelism; many asynchronous tasks AB The ability to measure performance characteristics of an application at runtime is essential for monitoring the behavior of the application and the runtime system on the underlying architecture. Traditional performance measurement tools do not adequately provide measurements of asynchronous task-based parallel applications, either in real-time or for postmortem analysis. We propose that this capability is best performed directly by the runtime system for ease in use and to minimize conflicts and overheads potentially caused by traditional measurement tools. In this paper, we describe and illustrate the use of the performance monitoring capabilities in the HPX [13] runtime system. We describe and detail existing performance counters made available through HPX's performance counter framework and demonstrate how they are useful to understanding application efficiency and resource usage at runtime. This extensive framework provides the ability to asynchronously query software and hardware counters and could potentially be used as the basis for runtime adaptive resource decisions. We demonstrate the ease of porting the Inncabs benchmark suite to the HPX runtime system, the improved performance of benchmarks that employ fine-grained task parallelism when ported to HPX, and the capabilities and advantages of using the in-situ performance monitoring system in HPX to give detailed insight to the performance and behavior of the benchmarks and the runtime system. C1 [Grubel, Patricia] New Mexico State Univ, Las Cruces, NM 88003 USA. [Kaiser, Hartmut] Louisiana State Univ, Ctr Computat & Technol, Baton Rouge, LA 70803 USA. [Huck, Kevin] Univ Oregon, Eugene, OR 97403 USA. [Cook, Jeanine] Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. RP Grubel, P (reprint author), New Mexico State Univ, Las Cruces, NM 88003 USA.; Kaiser, H (reprint author), Louisiana State Univ, Ctr Computat & Technol, Baton Rouge, LA 70803 USA.; Cook, J (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. EM pagrubel@nmsu.edu; hkaiser@cct.lsu.edu; khuck@cs.uoregon.edu; jeacook@sandia.gov NR 20 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2164-7062 BN 978-1-5090-3682-0 J9 IEEE SYM PARA DISTR PY 2016 BP 1692 EP 1701 DI 10.1109/IPDPSW.2016.115 PG 10 WC Computer Science, Hardware & Architecture; Computer Science, Theory & Methods SC Computer Science GA BG7FR UT WOS:000391253600210 ER PT S AU Brandt, J Gentile, A Showerman, M Enos, J Fullop, J Bauer, G AF Brandt, J. Gentile, A. Showerman, M. Enos, J. Fullop, J. Bauer, G. GP IEEE TI Large-scale Persistent Numerical Data Source Monitoring System Experiences SO 2016 IEEE 30TH INTERNATIONAL PARALLEL AND DISTRIBUTED PROCESSING SYMPOSIUM WORKSHOPS (IPDPSW) SE IEEE International Symposium on Parallel and Distributed Processing Workshops LA English DT Proceedings Paper CT 30th IEEE International Parallel and Distributed Processing Symposium (IPDPS) CY MAY 23-27, 2016 CL Illinois Inst Technol, Chicago, IL SP IEEE, IEEE Comp Soc, Tech Comm Parallel Proc, ACM SIGARCH, IEEE Comp Soc Tech Comm Comp Architecture, IEEE Comp Soc Tech Comm Distributed Proc HO Illinois Inst Technol DE resource management; resource monitoring AB \Issues of High Performance Computer (HPC) system diagnosis, automated system management, and resource-aware computing, are all dependent on high fidelity, system wide, persistent monitoring. Development and deployment of an effective persistent system wide monitoring service at large-scale presents a number of challenges, particularly when collecting data at the granularities needed to resolve features of interest and obtain early indication of significant events on the system. In this paper we provide experiences from our developments on and two-year deployment of our Lightweight Distributed Metric Service (LDMS) monitoring system on NCSA's 27,648 node Blue Waters system. We present monitoring related challenges and issues and their effects on the major functional components of general monitoring infrastructures and deployments: Data Sampling, Data Aggregation, Data Storage, Analysis Support, Operations, and Data Stewardship. Based on these experiences, we provide recommendations for effective development and deployment of HPC monitoring systems. C1 [Brandt, J.; Gentile, A.] Sandia Natl Labs, Albuquerque, NM 87185 USA. [Showerman, M.; Enos, J.; Fullop, J.; Bauer, G.] Natl Ctr Supercomp Applicat, Champaign, IL USA. RP Brandt, J (reprint author), Sandia Natl Labs, Albuquerque, NM 87185 USA. EM brandt@sandia.gov; gentile@sandia.gov; mshow@ncsa.illinois.edu; jenos@ncsa.illinois.edu; jfullop@ncsa.illinois.edu; gbauer@ncsa.illinois.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 2164-7062 BN 978-1-5090-3682-0 J9 IEEE SYM PARA DISTR PY 2016 BP 1711 EP 1720 DI 10.1109/IPDPSW.2016.188 PG 10 WC Computer Science, Hardware & Architecture; Computer Science, Theory & Methods SC Computer Science GA BG7FR UT WOS:000391253600212 ER PT S AU Sanchez, S Bonnie, A Van Heule, G Robinson, C DeConinck, A Kelly, K Snead, Q Brandt, J AF Sanchez, S. Bonnie, A. Van Heule, G. Robinson, C. DeConinck, A. Kelly, K. Snead, Q. Brandt, J. GP IEEE TI Design and Implementation of a Scalable HPC Monitoring System SO 2016 IEEE 30TH INTERNATIONAL PARALLEL AND DISTRIBUTED PROCESSING SYMPOSIUM WORKSHOPS (IPDPSW) SE IEEE International Symposium on Parallel and Distributed Processing Workshops LA English DT Proceedings Paper CT 30th IEEE International Parallel and Distributed Processing Symposium (IPDPS) CY MAY 23-27, 2016 CL Illinois Inst Technol, Chicago, IL SP IEEE, IEEE Comp Soc, Tech Comm Parallel Proc, ACM SIGARCH, IEEE Comp Soc Tech Comm Comp Architecture, IEEE Comp Soc Tech Comm Distributed Proc HO Illinois Inst Technol AB ]Over the past decade, platforms at Los Alamos National Laboratory (LANL) have experienced large increases in complexity and scale to reach computational targets. The changes to the compute platforms have presented new challenges to the production monitoring systems in which they must not only cope with larger volumes of monitoring data, but also must provide new capabilities for the management, distribution, and analysis of this data. This schema must support both real-time analysis for alerting on urgent issues, as well as analysis of historical data for understanding performance issues and trends in system behavior. This paper presents the design of our proposed next-generation monitoring system, as well as implementation details for an initial deployment. This design takes the form of a multi-stage data processing pipeline, including a scalable cluster for data aggregation and early analysis; a message broker for distribution of this data to varied consumers; and an initial selection of consumer services for alerting and analysis. We will also present estimates of the capabilities and scale required to monitor two upcoming compute platforms at LANL. C1 [Sanchez, S.; Bonnie, A.; Van Heule, G.; Robinson, C.; DeConinck, A.; Kelly, K.; Snead, Q.] Los Alamos Natl Lab, Los Alamos, NM 87544 USA. [Brandt, J.] Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Sanchez, S (reprint author), Los Alamos Natl Lab, Los Alamos, NM 87544 USA. EM samsanchez@lanl.gov; noranzyk@lanl.gov; grahamvh@lanl.gov; crobinson@lanl.gov; ajdecon@lanl.gov; kak@lanl.gov; quellyn@lanl.gov; brandt@sandia.gov OI DeConinck, Adam/0000-0003-2592-8983 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 2164-7062 BN 978-1-5090-3682-0 J9 IEEE SYM PARA DISTR PY 2016 BP 1721 EP 1725 DI 10.1109/IPDPSW.2016.167 PG 5 WC Computer Science, Hardware & Architecture; Computer Science, Theory & Methods SC Computer Science GA BG7FR UT WOS:000391253600213 ER PT S AU Suetterlein, J Landwehr, J Marquez, A Manzano, JB Gao, GR AF Suetterlein, Joshua Landwehr, Joshua Marquez, Andres Manzano, Joseph B. Gao, Guang R. GP IEEE TI Asynchronous Runtimes in Action: An Introspective Framework for a Next Gen Runtime SO 2016 IEEE 30TH INTERNATIONAL PARALLEL AND DISTRIBUTED PROCESSING SYMPOSIUM WORKSHOPS (IPDPSW) SE IEEE International Symposium on Parallel and Distributed Processing Workshops LA English DT Proceedings Paper CT 30th IEEE International Parallel and Distributed Processing Symposium (IPDPS) CY MAY 23-27, 2016 CL Illinois Inst Technol, Chicago, IL SP IEEE, IEEE Comp Soc, Tech Comm Parallel Proc, ACM SIGARCH, IEEE Comp Soc Tech Comm Comp Architecture, IEEE Comp Soc Tech Comm Distributed Proc HO Illinois Inst Technol AB One of the most critical challenges that new high performance systems face is the lack of system software support for these large scale systems. Investment on system stack components is essential in the development, debugging and optimization of the new emerging programming models. These emerging models have the promise to better utilize the vast hardware resources available in current and future systems. To aid in the development of applications and new system stacks, runtimes, as instances of their respective execution models, need to produce facilities to introspect their inner workings and allow an in-depth attribution of performance bottlenecks and computational patterns. In other words, the runtime systems need to reduce their opacity to observers so that users of a novel program execution model can adapt their designs to fit the intended model usage, regardless of the layer that they are working on. This design/development loop (akin to co-design) enables synergistic opportunities across the entire computational stack. This paper presents the design and implementation of a simple "gray" box performance attribution harness running inside a fine grain runtime system: the Open Community Runtime (OCR). We showcase what such a framework can indicate regarding the runtime behavior while running at scale. To this end, we have designed a set of synthetic scenarios aimed to test the runtime at their best and worst cases. We present an analysis of the most important runtime features, properties and idiosyncrasies that will affect the development of new runtime features, algorithmic selection, and application development. C1 [Suetterlein, Joshua; Gao, Guang R.] Univ Delaware, Comp Architecture & Parallel Syst Lab, Newark, DE 19716 USA. [Landwehr, Joshua; Marquez, Andres; Manzano, Joseph B.] Pacific Northwest Natl Lab, Richland, WA 99354 USA. RP Suetterlein, J (reprint author), Univ Delaware, Comp Architecture & Parallel Syst Lab, Newark, DE 19716 USA. EM jodasue@udel.edu; joshua.landwehr@pnnl.gov; andres.marquez@pnnl.gov; joseph.manzano@pnnl.gov; ggao.capsl@gmail.com 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 2164-7062 BN 978-1-5090-3682-0 J9 IEEE SYM PARA DISTR PY 2016 BP 1744 EP 1751 DI 10.1109/IPDPSW.2016.191 PG 8 WC Computer Science, Hardware & Architecture; Computer Science, Theory & Methods SC Computer Science GA BG7FR UT WOS:000391253600217 ER PT S AU Lagadapati, M Mueller, F Engelmann, C AF Lagadapati, Mahesh Mueller, Frank Engelmann, Christian GP IEEE TI Benchmark Generation and Simulation at Extreme Scale SO 2016 IEEE/ACM 20TH INTERNATIONAL SYMPOSIUM ON DISTRIBUTED SIMULATION AND REAL TIME APPLICATIONS (DS-RT) SE IEEE ACM International Symposium on Distributed Simulation and Real-Time Applications LA English DT Proceedings Paper CT 20th IEEE/ACM International Symposium on Distributed Simulation and Real Time Applications (DS-RT) CY SEP 21-23, 2016 CL London, ENGLAND SP IEEE, IEEE Comp Soc, ACM SIGSIM, Brunel Univ AB The path to extreme scale high-performance computing (HPC) poses several challenges related to power, performance, resilience, productivity, programmability, data movement, and data management. Investigating the performance of parallel applications at scale on future architectures and the performance impact of different architectural choices is an important component of HPC hardware/software co-design. Simulations using models of future HPC systems and communication traces from applications running on existing HPC systems can offer an insight into the performance of future architectures. This work targets technology developed for scalable application tracing of communication events. It focuses on extreme-scale simulation of HPC applications and their communication behavior via lightweight parallel discrete event simulation for performance estimation and evaluation. Instead of simply replaying a trace within a simulator, this work promotes the generation of a benchmark from traces. This benchmark is subsequently exposed to simulation using models to reflect the performance characteristics of future-generation HPC systems. This technique provides a number of benefits, such as eliminating the data intensive trace replay and enabling simulations at different scales. The presented work features novel software co-design aspects, combining the ScalaTrace tool to generate scalable trace files, the ScalaBenchGen tool to generate the benchmark, and the xSim tool to assess the benchmark characteristics within a simulator. C1 [Lagadapati, Mahesh; Mueller, Frank] North Carolina State Univ, Dept Comp Sci, Raleigh, NC 27695 USA. [Engelmann, Christian] Oak Ridge Natl Lab, Comp Sci & Math Div, Oak Ridge, TN 37831 USA. RP Lagadapati, M (reprint author), North Carolina State Univ, Dept Comp Sci, Raleigh, NC 27695 USA. EM mlagada@ncsu.edu; mueller@cs.ncsu.edu; engelmannc@ornl.gov 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 1550-6525 BN 978-1-5090-3505-2 J9 IEEE ACM DIS SIM PY 2016 BP 9 EP 18 DI 10.1109/DS-RT.2016.18 PG 10 WC Computer Science, Hardware & Architecture; Computer Science, Software Engineering SC Computer Science GA BG7PW UT WOS:000391589800002 ER PT S AU Fiala, D Mueller, F Ferreira, KB AF Fiala, David Mueller, Frank Ferreira, Kurt B. GP IEEE TI FlipSphere: A Software-based DRAM Error Detection and Correction Library for HPC SO 2016 IEEE/ACM 20TH INTERNATIONAL SYMPOSIUM ON DISTRIBUTED SIMULATION AND REAL TIME APPLICATIONS (DS-RT) SE IEEE ACM International Symposium on Distributed Simulation and Real-Time Applications LA English DT Proceedings Paper CT 20th IEEE/ACM International Symposium on Distributed Simulation and Real Time Applications (DS-RT) CY SEP 21-23, 2016 CL London, ENGLAND SP IEEE, IEEE Comp Soc, ACM SIGSIM, Brunel Univ AB Proposed exascale systems will present considerable challenges. In particular, DRAM soft-errors, or bit-flips, are expected to greatly increase due to higher memory densities and near-threshold voltages. To address this challenge, we introduce FlipSphere, a tunable, transparent silent data corruption detection and correction library for HPC applications that is first in its class to use hardware accelerators, such as the Intel Xeon Phi MIC, to increase application resilience. FlipSphere provides comprehensive silent data corruption protection for application memory by implementing on-demand page integrity verification coupled with a software-based error correcting code that allows for automatic error recovery. Using this framework, we demonstrate the trade-offs of dedicating hardware resources for resilience, showing up to 90% of memory may be protected with a 40% slowdown. C1 [Fiala, David; Mueller, Frank] North Carolina State Univ, Dept Comp Sci, Raleigh, NC 27695 USA. [Ferreira, Kurt B.] Sandia Natl Labs, Ctr Res Comp, Livermore, CA 94550 USA. RP Mueller, F (reprint author), North Carolina State Univ, Dept Comp Sci, Raleigh, NC 27695 USA. EM mueller@cs.ncsu.edu; kbferre@sandia.gov NR 21 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 1550-6525 BN 978-1-5090-3505-2 J9 IEEE ACM DIS SIM PY 2016 BP 19 EP 28 DI 10.1109/DS-RT.2016.27 PG 10 WC Computer Science, Hardware & Architecture; Computer Science, Software Engineering SC Computer Science GA BG7PW UT WOS:000391589800003 ER PT S AU Notaros, BM Manic, AB Smull, AP Manic, SB Li, XS Rouet, FH AF Notaros, Branislav M. Manic, Ana B. Smull, Aaron P. Manic, Sanja B. Li, Xiaoye Sherry Rouet, Francois-Henry GP IEEE TI Multiscale Electromagnetic Modeling Using Double-Higher-Order Quadrilateral Meshes and Parallel MoM-SIE Direct Solutions SO 2016 IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM SE IEEE Antennas and Propagation Society International Symposium LA English DT Proceedings Paper CT IEEE-Antennas-and-Propagation-Society International Symposium CY JUN 26-JUL 01, 2016 CL Fajardo, PR SP Inst Elect & Elect Engineers Antennas & Propagat Soc, Inst Elect & Elect Engineers DE Multiscale modeling; scalable parallel algorithms; fast direct solvers; surface integral equations; integration methods AB We present the development of a scalable parallel algorithm and solver for computational electromagnetics based on a double higher order method of moments in the surface integral equation formulation in conjunction with a direct hierarchically semiseparable structures solver. Multiscale modeling using the new method, for electrically very large structures that also include electrically very small details, is discussed, with several advancement strategies. C1 [Notaros, Branislav M.; Manic, Ana B.; Smull, Aaron P.; Manic, Sanja B.] Colorado State Univ, Dept Elect & Comp Engn, Ft Collins, CO 80523 USA. [Li, Xiaoye Sherry; Rouet, Francois-Henry] Lawrence Berkeley Natl Lab, Computat Res Div, Berkeley, CA 94720 USA. RP Notaros, BM (reprint author), Colorado State Univ, Dept Elect & Comp Engn, Ft Collins, CO 80523 USA. EM notaros@colostate.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 1522-3965 BN 978-1-5090-2886-3 J9 IEEE ANTENNAS PROP PY 2016 BP 235 EP 236 PG 2 WC Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA BG3XZ UT WOS:000388377100113 ER PT S AU Rangel, E Li, N Habib, S Peterka, T Agrawal, A Liao, WK Choudhary, A AF Rangel, Esteban Li, Nan Habib, Salman Peterka, Tom Agrawal, Ankit Liao, Wei-keng Choudhary, Alok GP IEEE TI Parallel DTFE Surface Density Field Reconstruction SO 2016 IEEE INTERNATIONAL CONFERENCE ON CLUSTER COMPUTING (CLUSTER) SE IEEE International Conference on Cluster Computing LA English DT Proceedings Paper CT IEEE International Conference on Cluster Computing (CLUSTER) CY SEP 13-15, 2016 CL Taipei, TAIWAN SP IEEE, IEEE Comp Soc, Natl Tsing Hua Univ, Natl Ctr High Performance Comp, Res Ctr Informat Technol Innovat Academia Sinica, Taiwan Assoc Cloud Comp, NSF, TeraSoft, Minist Sci & Technol, Bur Foreign Trade, TAIPEI, Dept Informat & Tourism, MEDIATEK DE parallel surface density; Delaunay tessellation field estimator AB We improve the interpolation accuracy and efficiency of the Delaunay tessellation field estimator (DTFE) for surface density field reconstruction by proposing an algorithm that takes advantage of the adaptive triangular mesh for line-of-sight integration. The costly computation of an intermediate 3D grid is completely avoided by our method and only optimally chosen interpolation points are computed, thus, the overall computational cost is significantly reduced. The algorithm is implemented as a parallel shared-memory kernel for large-scale grid rendered field reconstructions in our distributed-memory framework designed for N-body gravitational lensing simulations in large volumes. We also introduce a load balancing scheme to optimize the efficiency of processing a large number of field reconstructions. Our results show our kernel outperforms existing software packages for volume weighted density field reconstruction, achieving similar to 10x speedup, and our load balancing algorithm gains an additional similar to 3.6x speedup at scales with similar to 16k processes. C1 [Rangel, Esteban; Agrawal, Ankit; Liao, Wei-keng; Choudhary, Alok] Northwestern Univ, Dept Elect Engn & Comp Sci, Evanston, IL 60208 USA. [Rangel, Esteban; Li, Nan; Habib, Salman; Peterka, Tom] Argonne Natl Lab, Lemont, IL USA. RP Rangel, E (reprint author), Northwestern Univ, Dept Elect Engn & Comp Sci, Evanston, IL 60208 USA.; Rangel, E (reprint author), Argonne Natl Lab, Lemont, IL 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 1552-5244 BN 978-1-5090-3653-0 J9 IEEE INT C CL COMP PY 2016 BP 30 EP 39 DI 10.1109/CLUSTER.2016.40 PG 10 WC Computer Science, Hardware & Architecture SC Computer Science GA BG7KM UT WOS:000391414100004 ER PT S AU Dorier, M Mubarak, M Ross, R Li, JK Carothers, CD Ma, KL AF Dorier, Matthieu Mubarak, Misbah Ross, Rob Li, Jianping Kelvin Carothers, Christopher D. Ma, Kwan-Liu GP IEEE TI Evaluation of Topology-Aware Broadcast Algorithms for Dragonfly Networks SO 2016 IEEE INTERNATIONAL CONFERENCE ON CLUSTER COMPUTING (CLUSTER) SE IEEE International Conference on Cluster Computing LA English DT Proceedings Paper CT IEEE International Conference on Cluster Computing (CLUSTER) CY SEP 13-15, 2016 CL Taipei, TAIWAN SP IEEE, IEEE Comp Soc, Natl Tsing Hua Univ, Natl Ctr High Performance Comp, Res Ctr Informat Technol Innovat Academia Sinica, Taiwan Assoc Cloud Comp, NSF, TeraSoft, Minist Sci & Technol, Bur Foreign Trade, TAIPEI, Dept Informat & Tourism, MEDIATEK AB Two-tiered direct network topologies such as Dragonflies have been proposed for future post-petascale and exascale machines, since they provide a high-radix, low-diameter, fast interconnection network. Such topologies call for redesigning MPI collective communication algorithms in order to attain the best performance. Yet as increasingly more applications share a machine, it is not clear how these topology-aware algorithms will react to interference with concurrent jobs accessing the same network. In this paper, we study three topology-aware broadcast algorithms, including one designed by ourselves. We evaluate their performance through event-driven simulation for small-and large-sized broadcasts (in terms of both data size and number of processes). We study the effect of different routing mechanisms on the topology-aware collective algorithms, as well as their sensitivity to network contention with other jobs. Our results show that while topology-aware algorithms dramatically reduce link utilization, their advantage in terms of latency is more limited. C1 [Dorier, Matthieu; Mubarak, Misbah; Ross, Rob] Argonne Natl Lab, Argonne, IL 60439 USA. [Li, Jianping Kelvin; Ma, Kwan-Liu] Univ Calif Davis, Davis, CA 95616 USA. [Carothers, Christopher D.] Rensselaer Polytech Inst, Dept Comp Sci, Troy, NY 12181 USA. RP Dorier, M (reprint author), Argonne Natl Lab, Argonne, IL 60439 USA. EM mdorier@anl.gov; mmubarak@anl.gov; rross@anl.gov; kelli@ucdavis.edu; chrisc@cs.rpi.edu; klma@ucdavis.edu NR 33 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 1552-5244 BN 978-1-5090-3653-0 J9 IEEE INT C CL COMP PY 2016 BP 40 EP 49 DI 10.1109/CLUSTER.2016.26 PG 10 WC Computer Science, Hardware & Architecture SC Computer Science GA BG7KM UT WOS:000391414100005 ER PT S AU Groves, T Grant, RE Hemmert, S Hammond, S Levenhagen, M Arnold, DC AF Groves, Taylor Grant, Ryan E. Hemmert, Scott Hammond, Simon Levenhagen, Michael Arnold, Dorian C. GP IEEE TI (SAI) Stalled, Active and Idle: Characterizing Power and Performance of Large-scale Dragonfly Networks SO 2016 IEEE INTERNATIONAL CONFERENCE ON CLUSTER COMPUTING (CLUSTER) SE IEEE International Conference on Cluster Computing LA English DT Proceedings Paper CT IEEE International Conference on Cluster Computing (CLUSTER) CY SEP 13-15, 2016 CL Taipei, TAIWAN SP IEEE, IEEE Comp Soc, Natl Tsing Hua Univ, Natl Ctr High Performance Comp, Res Ctr Informat Technol Innovat Academia Sinica, Taiwan Assoc Cloud Comp, NSF, TeraSoft, Minist Sci & Technol, Bur Foreign Trade, TAIPEI, Dept Informat & Tourism, MEDIATEK AB Exascale networks are expected to comprise a significant part of the total monetary cost and 10-20% of the power budget allocated to exascale systems. Yet, our understanding of current and emerging workloads on these networks is limited. Left ignored, this knowledge gap likely will translate into missed opportunities for (1) improved application performance and (2) decreased power and monetary costs in next generation systems. This work targets a detailed understanding and analysis of the performance and utilization of the dragonfly network topology. Using the Structural Simulation Toolkit (SST) and a range of relevant workloads on a dragonfly topology of 110,592 nodes, we examine network design tradeoffs amongst execution time, power, bandwidth, and the number of global links. Our simulations report stalled, active and idle time on a per-port level of the fabric, in order to provide a detailed picture of future networks. The results of this work show potential savings of 3-10% of the exascale power budget and provide valuable insights to researchers looking for new opportunities to improve performance and increase power efficiency of next generation HPC systems. C1 [Groves, Taylor; Grant, Ryan E.; Hemmert, Scott; Hammond, Simon; Levenhagen, Michael] Sandia Natl Labs, Ctr Res Comp, POB 5800 MS-1110, Albuquerque, NM 87185 USA. [Groves, Taylor; Arnold, Dorian C.] Univ New Mexico, Dept Comp Sci, 1 Univ New Mexico, Albuquerque, NM 87131 USA. RP Groves, T (reprint author), Sandia Natl Labs, Ctr Res Comp, POB 5800 MS-1110, Albuquerque, NM 87185 USA.; Groves, T (reprint author), Univ New Mexico, Dept Comp Sci, 1 Univ New Mexico, Albuquerque, NM 87131 USA. EM tfroves@sandia.gov; regrant@sandia.gov; kshemme@sandia.gov; sdhammo@sandia.gov; mjleven@sandia.gov; darnold@cs.unm.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 SN 1552-5244 BN 978-1-5090-3653-0 J9 IEEE INT C CL COMP PY 2016 BP 50 EP 59 DI 10.1109/CLUSTER.2016.52 PG 10 WC Computer Science, Hardware & Architecture SC Computer Science GA BG7KM UT WOS:000391414100006 ER PT S AU Guo, JC Yi, Q Meng, JY Zhang, JC Balaji, P AF Guo, Jichi Yi, Qing Meng, Jiayuan Zhang, Junchao Balaji, Pavan GP IEEE TI Compiler-Assisted Overlapping of Communication and Computation in MPI Applications SO 2016 IEEE INTERNATIONAL CONFERENCE ON CLUSTER COMPUTING (CLUSTER) SE IEEE International Conference on Cluster Computing LA English DT Proceedings Paper CT IEEE International Conference on Cluster Computing (CLUSTER) CY SEP 13-15, 2016 CL Taipei, TAIWAN SP IEEE, IEEE Comp Soc, Natl Tsing Hua Univ, Natl Ctr High Performance Comp, Res Ctr Informat Technol Innovat Academia Sinica, Taiwan Assoc Cloud Comp, NSF, TeraSoft, Minist Sci & Technol, Bur Foreign Trade, TAIPEI, Dept Informat & Tourism, MEDIATEK DE Computer Applications; Computer performance; Parallel machines; Automatic programming ID ALGORITHMS AB The performance of distributed-memory applications, many of which are written in MPI, critically depends on how well the applications can ameliorate the long latency of data movement by overlapping them with ongoing computations, thereby minimizing wait time. This paper aims to enable such overlapping in large MPI applications and presents a framework that uses an analytical performance model and an optimizing compiler to systematically enable the optimizations. In particular, we first generate an analytical performance model of the application execution flow to automatically identify potential communication hot spots that may induce long wait time. Next, for each communication hot spot, we search the execution flow graph to find surrounding loops that include sufficient local computation to overlap with the communication. Then, blocking MPI communications are decoupled into nonblocking operations when necessary, and their surrounding loops are transformed to hide the communication latencies behind local computations. We evaluated our framework using 7 MPI applications from the NPB NAS benchmark suite. Our optimizations can attain 3-88% speedup over the original implementations. C1 [Guo, Jichi; Yi, Qing] Univ Colorado, Colorado Springs, CO 80309 USA. [Meng, Jiayuan] Google Inc, Mountain View, CA USA. [Zhang, Junchao; Balaji, Pavan] Argonne Natl Lab, Lemont, IL USA. RP Guo, JC (reprint author), Univ Colorado, Colorado Springs, CO 80309 USA. EM jguo2@uccs.edu; qyi@uccs.edu; meng.jiayuan@gmail.com; jczhang@anl.gov; balaji@anl.gov NR 40 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 1552-5244 BN 978-1-5090-3653-0 J9 IEEE INT C CL COMP PY 2016 BP 60 EP 69 DI 10.1109/CLUSTER.2016.62 PG 10 WC Computer Science, Hardware & Architecture SC Computer Science GA BG7KM UT WOS:000391414100007 ER PT S AU Kasu, P Kim, Y Park, S Atchley, S Vallee, GR AF Kasu, Preethika Kim, Youngjae Park, Sungyong Atchley, Scott Vallee, Geoffroy R. GP IEEE TI Design and Analysis of Fault Tolerance Mechanisms for Big Data Transfers SO 2016 IEEE INTERNATIONAL CONFERENCE ON CLUSTER COMPUTING (CLUSTER) SE IEEE International Conference on Cluster Computing LA English DT Proceedings Paper CT IEEE International Conference on Cluster Computing (CLUSTER) CY SEP 13-15, 2016 CL Taipei, TAIWAN SP IEEE, IEEE Comp Soc, Natl Tsing Hua Univ, Natl Ctr High Performance Comp, Res Ctr Informat Technol Innovat Academia Sinica, Taiwan Assoc Cloud Comp, NSF, TeraSoft, Minist Sci & Technol, Bur Foreign Trade, TAIPEI, Dept Informat & Tourism, MEDIATEK AB Increased growth of the data and the need to move the data between data centers, demands, an efficient data transfer tool which can, not only transfer the data at higher rates but also handle the faults occurred during the transfer. Absence of fault tolerance mechanisms, would need to retransmit the whole data, in case of any error during the transfer. Hence, fault tolerance is an important aspect of big data transfer tools. In this paper, we have considered LADS data transfer tool, which proved to be superior to the existing data transfer tools with respect to the speed of the transfer. However, absence of fault tolerance implementation in LADS might result in data retransmission and congestion issues upon errors. In this paper, we design and analyze fault tolerance mechanisms which can be used with LADS data transfer tool. We have proposed three different fault tolerance mechanisms, File logging, Transaction logging and Universal logging. Also, we have analyzed the space and performance overhead of these fault tolerance mechanisms on LADS data transfer tool. C1 [Kasu, Preethika] Ajou Univ, Suwon 441749, South Korea. [Kim, Youngjae; Park, Sungyong] Sogang Univ, Seoul, South Korea. [Atchley, Scott; Vallee, Geoffroy R.] Oak Ridge Natl Lab, Oak Ridge, TN USA. RP Kim, Y (reprint author), Sogang Univ, Seoul, South Korea. EM kasu@ajou.ac.kr; youkim@ornl.gov; parksy@sogang.ac.kr; atchleyes@ornl.gov; valleegr@ornl.gov 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 1552-5244 BN 978-1-5090-3653-0 J9 IEEE INT C CL COMP PY 2016 BP 138 EP 139 DI 10.1109/CLUSTER.2016.74 PG 2 WC Computer Science, Hardware & Architecture SC Computer Science GA BG7KM UT WOS:000391414100018 ER PT S AU Lofstead, J Champsaur, A Dayal, J Wolf, M Eisenhauer, G AF Lofstead, Jay Champsaur, Alexis Dayal, Jai Wolf, Matthew Eisenhauer, Greg GP IEEE TI SuperGlue: Standardizing Glue Components for HPC Workflows SO 2016 IEEE INTERNATIONAL CONFERENCE ON CLUSTER COMPUTING (CLUSTER) SE IEEE International Conference on Cluster Computing LA English DT Proceedings Paper CT IEEE International Conference on Cluster Computing (CLUSTER) CY SEP 13-15, 2016 CL Taipei, TAIWAN SP IEEE, IEEE Comp Soc, Natl Tsing Hua Univ, Natl Ctr High Performance Comp, Res Ctr Informat Technol Innovat Academia Sinica, Taiwan Assoc Cloud Comp, NSF, TeraSoft, Minist Sci & Technol, Bur Foreign Trade, TAIPEI, Dept Informat & Tourism, MEDIATEK C1 [Lofstead, Jay] Sandia Natl Labs, Livermore, CA 94550 USA. [Champsaur, Alexis; Dayal, Jai; Wolf, Matthew; Eisenhauer, Greg] Georgia Inst Technol, Sch Comp Sci, Atlanta, GA 30332 USA. RP Lofstead, J (reprint author), Sandia Natl Labs, Livermore, CA 94550 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 1552-5244 BN 978-1-5090-3653-0 J9 IEEE INT C CL COMP PY 2016 BP 170 EP 171 DI 10.1109/CLUSTER.2016.90 PG 2 WC Computer Science, Hardware & Architecture SC Computer Science GA BG7KM UT WOS:000391414100034 ER PT S AU Calotoiu, A Beckingsale, D Earl, CW Hoefler, T Karlin, I Schulz, M Wolf, F AF Calotoiu, Alexandru Beckingsale, David Earl, Christopher W. Hoefler, Torsten Karlin, Ian Schulz, Martin Wolf, Felix GP IEEE TI Fast Multi-Parameter Performance Modeling SO 2016 IEEE INTERNATIONAL CONFERENCE ON CLUSTER COMPUTING (CLUSTER) SE IEEE International Conference on Cluster Computing LA English DT Proceedings Paper CT IEEE International Conference on Cluster Computing (CLUSTER) CY SEP 13-15, 2016 CL Taipei, TAIWAN SP IEEE, IEEE Comp Soc, Natl Tsing Hua Univ, Natl Ctr High Performance Comp, Res Ctr Informat Technol Innovat Academia Sinica, Taiwan Assoc Cloud Comp, NSF, TeraSoft, Minist Sci & Technol, Bur Foreign Trade, TAIPEI, Dept Informat & Tourism, MEDIATEK AB Tuning large applications requires a clever exploration of the design and configuration space. Especially on supercomputers, this space is so large that its exhaustive traversal via performance experiments becomes too expensive, if not impossible. Manually creating analytical performance models provides insights into optimization opportunities but is extremely laborious if done for applications of realistic size. If we must consider multiple performance-relevant parameters and their possible interactions, a common requirement, this task becomes even more complex. We build on previous work on automatic scalability modeling and significantly extend it to allow insightful modeling of any combination of application execution parameters. Multi-parameter modeling has so far been outside the reach of automatic methods due to the exponential growth of the model search space. We develop a new technique to traverse the search space rapidly and generate insightful performance models that enable a wide range of uses from performance predictions for balanced machine design to performance tuning. C1 [Calotoiu, Alexandru; Wolf, Felix] Tech Univ Darmstadt, Darmstadt, Germany. [Hoefler, Torsten] Swiss Fed Inst Technol, Zurich, Switzerland. [Beckingsale, David; Earl, Christopher W.; Karlin, Ian; Schulz, Martin] Lawrence Livermore Natl Lab, Livermore, CA USA. RP Calotoiu, A (reprint author), Tech Univ Darmstadt, Darmstadt, Germany. EM calotoiu@cs.tu-darmstadt.de; beckingsale1@llnl.gov; earl2@llnl.gov; htor@inf.ethz.ch; karlin1@llnl.gov; schulzm@llnl.gov; wolf@cs.tu-darmstadt.de NR 20 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 1552-5244 BN 978-1-5090-3653-0 J9 IEEE INT C CL COMP PY 2016 BP 172 EP 181 DI 10.1109/CLUSTER.2016.57 PG 10 WC Computer Science, Hardware & Architecture SC Computer Science GA BG7KM UT WOS:000391414100035 ER PT S AU McKenna, R Herbein, S Moody, A Gamblin, T Taufer, M AF McKenna, Ryan Herbein, Stephen Moody, Adam Gamblin, Todd Taufer, Michela GP IEEE TI Machine Learning Predictions of Runtime and IO Traffic on High-end Clusters SO 2016 IEEE INTERNATIONAL CONFERENCE ON CLUSTER COMPUTING (CLUSTER) SE IEEE International Conference on Cluster Computing LA English DT Proceedings Paper CT IEEE International Conference on Cluster Computing (CLUSTER) CY SEP 13-15, 2016 CL Taipei, TAIWAN SP IEEE, IEEE Comp Soc, Natl Tsing Hua Univ, Natl Ctr High Performance Comp, Res Ctr Informat Technol Innovat Academia Sinica, Taiwan Assoc Cloud Comp, NSF, TeraSoft, Minist Sci & Technol, Bur Foreign Trade, TAIPEI, Dept Informat & Tourism, MEDIATEK AB We use supervised machine learning algorithms (i.e., Decision Trees, Random Forest, and K-nearest Neighbors) to predict performance characteristics such as runtime and IO traffic of batch jobs on high-end clusters, using only user job scripts as input. We show that decision trees outperform other algorithms and accurately predict the runtime of 73% of jobs within a error tolerance of 10 minutes, which is a 51% improvement over the user requested runtime. C1 [McKenna, Ryan; Herbein, Stephen; Taufer, Michela] Univ Delaware, Comp & Informat Sci, Newark, DE 19711 USA. [Moody, Adam; Gamblin, Todd] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RP Taufer, M (reprint author), Univ Delaware, Comp & Informat Sci, Newark, DE 19711 USA. EM gamblin2@llnl.gov; taufer@udel.edu 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 1552-5244 BN 978-1-5090-3653-0 J9 IEEE INT C CL COMP PY 2016 BP 255 EP 258 DI 10.1109/CLUSTER.2016.58 PG 4 WC Computer Science, Hardware & Architecture SC Computer Science GA BG7KM UT WOS:000391414100045 ER PT S AU Dorier, M Sisneros, R Gomez, LB Peterka, T Orf, L Rahmani, L Antoniu, G Bouge, L AF Dorier, Matthieu Sisneros, Robert Gomez, Leonardo Bautista Peterka, Tom Orf, Leigh Rahmani, Lokman Antoniu, Gabriel Bouge, Luc GP IEEE TI Adaptive Performance-Constrained In Situ Visualization of Atmospheric Simulations SO 2016 IEEE INTERNATIONAL CONFERENCE ON CLUSTER COMPUTING (CLUSTER) SE IEEE International Conference on Cluster Computing LA English DT Proceedings Paper CT IEEE International Conference on Cluster Computing (CLUSTER) CY SEP 13-15, 2016 CL Taipei, TAIWAN SP IEEE, IEEE Comp Soc, Natl Tsing Hua Univ, Natl Ctr High Performance Comp, Res Ctr Informat Technol Innovat Academia Sinica, Taiwan Assoc Cloud Comp, NSF, TeraSoft, Minist Sci & Technol, Bur Foreign Trade, TAIPEI, Dept Informat & Tourism, MEDIATEK AB While many parallel visualization tools now provide in situ visualization capabilities, the trend has been to feed such tools with large amounts of unprocessed output data and let them render everything at the highest possible resolution. This leads to an increased run time of simulations that still have to complete within a fixed-length job allocation. In this paper, we tackle the challenge of enabling in situ visualization under performance constraints. Our approach shuffles data across processes according to its content and filters out part of it in order to feed a visualization pipeline with only a reorganized subset of the data produced by the simulation. Our framework leverages fast, generic evaluation procedures to score blocks of data, using information theory, statistics, and linear algebra. It monitors its own performance and adapts dynamically to achieve appropriate visual fidelity within predefined performance constraints. Experiments on the Blue Waters supercomputer with the CM1 simulation show that our approach enables a 5x speedup with respect to the initial visualization pipeline and is able to meet performance constraints. C1 [Dorier, Matthieu; Gomez, Leonardo Bautista; Peterka, Tom] Argonne Natl Lab, Argonne, IL 60439 USA. [Sisneros, Robert] UIUC, NCSA, Urbana, IL USA. [Orf, Leigh] Univ Wisconsin, Madison, WI USA. [Rahmani, Lokman; Bouge, Luc] ENS Rennes, IRISA, Rennes, France. [Antoniu, Gabriel] Inria, Rennes Bertagne Atlantique Res Ctr, Rennes, France. RP Dorier, M (reprint author), Argonne Natl Lab, Argonne, IL 60439 USA. EM mdorier@anl.gov; sisneros@illinois.edu; leobago@anl.gov; tpeterka@anl.gov; leigh.orf@ssec.wisc.edu; lokman.rahmani@irisa.fr; gabriel.antoniu@inria.fr; luc.bouge@irisa.fr RI Orf, Leigh/D-2195-2016 OI Orf, Leigh/0000-0002-2677-6427 NR 25 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 1552-5244 BN 978-1-5090-3653-0 J9 IEEE INT C CL COMP PY 2016 BP 269 EP 278 DI 10.1109/CLUSTER.2016.25 PG 10 WC Computer Science, Hardware & Architecture SC Computer Science GA BG7KM UT WOS:000391414100047 ER PT S AU Dreher, M Peterka, T AF Dreher, Matthieu Peterka, Tom GP IEEE TI Bredala: Semantic Data Redistribution for In Situ Applications SO 2016 IEEE INTERNATIONAL CONFERENCE ON CLUSTER COMPUTING (CLUSTER) SE IEEE International Conference on Cluster Computing LA English DT Proceedings Paper CT IEEE International Conference on Cluster Computing (CLUSTER) CY SEP 13-15, 2016 CL Taipei, TAIWAN SP IEEE, IEEE Comp Soc, Natl Tsing Hua Univ, Natl Ctr High Performance Comp, Res Ctr Informat Technol Innovat Academia Sinica, Taiwan Assoc Cloud Comp, NSF, TeraSoft, Minist Sci & Technol, Bur Foreign Trade, TAIPEI, Dept Informat & Tourism, MEDIATEK AB In situ processing is a promising solution to the problem of imbalance between computational capabilities and I/O bandwidth in current and future supercomputers. Initially designed for staging I/O, in situ middleware now can support a wide range of domains such as visualization, machine learning, filtering, and feature tracking. Doing so requires in situ middleware to manage complex heterogeneous codes using different data structures. Data need to be transformed and reorganized along the data path to fit the analysis needs. However, redistributing complex data structures is difficult. In many cases, arbitrarily splitting the arrays of a data structure destroys the semantic integrity of the data. We present Bredala, a lightweight library to annotate a data model with enough information to preserve the semantic integrity of the data during a redistribution. Bredala allows developers to describe how to split and merge a data model safely, operations usually done by in situ middleware. We evaluate the cost and performance of our library in a molecular dynamics application. We show that our data model can simplify the workflow graph of large-scale applications, improve the reusability of tasks, and offer an efficient alternative to redistribute the data. C1 [Dreher, Matthieu; Peterka, Tom] Argonne Natl Lab, 9700 S Cass Ave, Lemont, IL 60439 USA. RP Dreher, M (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Lemont, IL 60439 USA. EM mdreher@anl.gov; tpeterka@mcs.anl.gov NR 31 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 1552-5244 BN 978-1-5090-3653-0 J9 IEEE INT C CL COMP PY 2016 BP 279 EP 288 DI 10.1109/CLUSTER.2016.30 PG 10 WC Computer Science, Hardware & Architecture SC Computer Science GA BG7KM UT WOS:000391414100048 ER PT S AU Perarnau, S Zounmevo, JA Gerofi, B Iskra, K Beckman, P AF Perarnau, Swann Zounmevo, Judicael A. Gerofi, Balazs Iskra, Kamil Beckman, Pete GP IEEE TI Exploring Data Migration for Future Deep-Memory Many-Core Systems SO 2016 IEEE INTERNATIONAL CONFERENCE ON CLUSTER COMPUTING (CLUSTER) SE IEEE International Conference on Cluster Computing LA English DT Proceedings Paper CT IEEE International Conference on Cluster Computing (CLUSTER) CY SEP 13-15, 2016 CL Taipei, TAIWAN SP IEEE, IEEE Comp Soc, Natl Tsing Hua Univ, Natl Ctr High Performance Comp, Res Ctr Informat Technol Innovat Academia Sinica, Taiwan Assoc Cloud Comp, NSF, TeraSoft, Minist Sci & Technol, Bur Foreign Trade, TAIPEI, Dept Informat & Tourism, MEDIATEK AB Upcoming high-performance computing (HPC) platforms will have more complex memory hierarchies with high-bandwidth on-package memory and in the future also nonvolatile memory. How to use such deep memory hierarchies effectively remains an open research question. In this paper we evaluate the performance implications of a scheme based on a software-managed scratchpad with coarse-grained memory-copy operations migrating application data structures between memory hierarchy levels. We expect that such a scheme can, under specific circumstances, outperform a hardware-managed cache while requiring a lot less effort than would a scheme managed entirely by the application programmers. Because suitable hardware is not yet generally available, we propose and benchmark several existing hardware configurations that can be used as approximations, including non-uniform memory access (NUMA) systems and memory on accelerators. We then evaluate data migration mechanisms currently available on Linux systems, such as move_ pages and memcpy. We also design a best-case-scenario HPC benchmark to explore how the memory locality and parallelism of applications can be improved by data migration. We find that NUMA systems can be a reasonable approximation platform, especially when auxiliary load mechanisms are employed. Memory migration mechanisms inside the Linux kernel turn out to significantly lag behind a plain user-space memory copy, even after we level the playing field as much as possible. Our dedicated application benchmark demonstrates a significant performance benefit of doing memory migrations-approaching the measured difference in the memory bandwidth-provided that the ratio of worker threads to migration threads is chosen well. C1 [Perarnau, Swann; Zounmevo, Judicael A.; Iskra, Kamil; Beckman, Pete] Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA. [Gerofi, Balazs] RIKEN Adv Inst Computat Sci, Kobe, Hyogo, Japan. RP Perarnau, S (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA. EM swann@anl.gov; jzounmevo@anl.gov; bgerofi@riken.jp; iskra@mcs.anl.gov; beckman@mcs.anl.gov 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 SN 1552-5244 BN 978-1-5090-3653-0 J9 IEEE INT C CL COMP PY 2016 BP 289 EP 297 DI 10.1109/CLUSTER.2016.42 PG 9 WC Computer Science, Hardware & Architecture SC Computer Science GA BG7KM UT WOS:000391414100049 ER PT S AU Dai, D Chen, Y Carns, P Jenkins, J Zhang, W Ross, R AF Dai, Dong Chen, Yong Carns, Philip Jenkins, John Zhang, Wei Ross, Robert GP IEEE TI GraphMeta: A Graph-Based Engine for Managing Large-Scale HPC Rich Metadata SO 2016 IEEE INTERNATIONAL CONFERENCE ON CLUSTER COMPUTING (CLUSTER) SE IEEE International Conference on Cluster Computing LA English DT Proceedings Paper CT IEEE International Conference on Cluster Computing (CLUSTER) CY SEP 13-15, 2016 CL Taipei, TAIWAN SP IEEE, IEEE Comp Soc, Natl Tsing Hua Univ, Natl Ctr High Performance Comp, Res Ctr Informat Technol Innovat Academia Sinica, Taiwan Assoc Cloud Comp, NSF, TeraSoft, Minist Sci & Technol, Bur Foreign Trade, TAIPEI, Dept Informat & Tourism, MEDIATEK AB High-performance computing (HPC) systems face increasingly critical metadata management challenges, especially in the approaching exascale era. These challenges arise not only from exploding metadata volumes but also from increasingly diverse metadata, which contains data provenance and user-defined attributes in addition to traditional POSIX metadata. This "rich" metadata is critical to support many advanced data management functionality such as data auditing and validation. In our prior work, we presented a graph-based model that could be a promising solution to uniformly manage such rich metadata because of its flexibility and generality. At the same time, however, graph-based rich metadata management introduces significant challenges. In this study, we first identify the challenges presented by the underlying infrastructure in supporting scalable, high-performance rich metadata management. To tackle these challenges, we then present GraphMeta, a graph-based engine designed for managing large-scale rich metadata. We also utilize a series of optimizations designed for rich metadata graphs. We evaluate GraphMeta with both synthetic and real HPC metadata workloads and compare it with other approaches. The results show that its advantages in terms of rich metadata management in HPC systems, including better performance and scalability compared with existing solutions. C1 [Dai, Dong; Chen, Yong; Zhang, Wei] Texas Tech Univ, Dept Comp Sci, Lubbock, TX 79409 USA. [Carns, Philip; Jenkins, John; Ross, Robert] Argonne Natl Lab, Math & Comp Sci Div, Argonne, IL 60439 USA. RP Dai, D (reprint author), Texas Tech Univ, Dept Comp Sci, Lubbock, TX 79409 USA. EM dong.dai@ttu.edu; yong.chen@ttu.edu; earns@mcs.anl.gov; jenkins@mcs.anl.gov; x-spirit.zhang@ttu.edu; rross@mcs.anl.gov NR 40 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 1552-5244 BN 978-1-5090-3653-0 J9 IEEE INT C CL COMP PY 2016 BP 298 EP 307 DI 10.1109/CLUSTER.2016.50 PG 10 WC Computer Science, Hardware & Architecture SC Computer Science GA BG7KM UT WOS:000391414100050 ER PT S AU Castello, A Pena, AJ Seo, S Mayo, R Balaji, P Quintana-Orti, ES AF Castello, Adrian Pena, Antonio J. Seo, Sangmin Mayo, Rafael Balaji, Pavan Quintana-Orti, Enrique S. GP IEEE TI A Review of Lightweight Thread Approaches for High Performance Computing SO 2016 IEEE INTERNATIONAL CONFERENCE ON CLUSTER COMPUTING (CLUSTER) SE IEEE International Conference on Cluster Computing LA English DT Proceedings Paper CT IEEE International Conference on Cluster Computing (CLUSTER) CY SEP 13-15, 2016 CL Taipei, TAIWAN SP IEEE, IEEE Comp Soc, Natl Tsing Hua Univ, Natl Ctr High Performance Comp, Res Ctr Informat Technol Innovat Academia Sinica, Taiwan Assoc Cloud Comp, NSF, TeraSoft, Minist Sci & Technol, Bur Foreign Trade, TAIPEI, Dept Informat & Tourism, MEDIATEK AB High-level, directive-based solutions are becoming the programming models (PMs) of the multi/many-core architectures. Several solutions relying on operating system (OS) threads perfectly work with a moderate number of cores. However, exascale systems will spawn hundreds of thousands of threads in order to exploit their massive parallel architectures and thus conventional OS threads are too heavy for that purpose. Several lightweight thread (LWT) libraries have recently appeared offering lighter mechanisms to tackle massive concurrency. In order to examine the suitability of LWTs in high-level runtimes, we develop a set of microbenchmarks consisting of commonly-found patterns in current parallel codes. Moreover, we study the semantics offered by some LWT libraries in order to expose the similarities between different LWT application programming interfaces. This study reveals that a reduced set of LWT functions can be sufficient to cover the common parallel code patterns and that those LWT libraries perform better than OS threads-based solutions in cases where task and nested parallelism are becoming more popular with new architectures. C1 [Castello, Adrian; Mayo, Rafael; Quintana-Orti, Enrique S.] Univ Jaume 1, Castellon De La Plana, Spain. [Pena, Antonio J.] Barcelona Supercomp Ctr, Barcelona, Spain. [Seo, Sangmin; Balaji, Pavan] Argonne Natl Lab, Argonne, IL 60439 USA. RP Castello, A (reprint author), Univ Jaume 1, Castellon De La Plana, Spain. EM adcastel@uji.es; antonio.pena@bsc.es; sseo@anl.gov; mayo@uji.es; balaji@anl.gov; quintana@uji.es 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 1552-5244 BN 978-1-5090-3653-0 J9 IEEE INT C CL COMP PY 2016 BP 471 EP 480 DI 10.1109/CLUSTER.2016.12 PG 10 WC Computer Science, Hardware & Architecture SC Computer Science GA BG7KM UT WOS:000391414100072 ER PT S AU Cui, XW Scogland, TRW de Supinski, BR Feng, WC AF Cui, Xuewen Scogland, Thomas R. W. de Supinski, Bronis R. Feng, Wu-chun GP IEEE TI Directive-Based Pipelining Extension for OpenMP SO 2016 IEEE INTERNATIONAL CONFERENCE ON CLUSTER COMPUTING (CLUSTER) SE IEEE International Conference on Cluster Computing LA English DT Proceedings Paper CT IEEE International Conference on Cluster Computing (CLUSTER) CY SEP 13-15, 2016 CL Taipei, TAIWAN SP IEEE, IEEE Comp Soc, Natl Tsing Hua Univ, Natl Ctr High Performance Comp, Res Ctr Informat Technol Innovat Academia Sinica, Taiwan Assoc Cloud Comp, NSF, TeraSoft, Minist Sci & Technol, Bur Foreign Trade, TAIPEI, Dept Informat & Tourism, MEDIATEK AB Programming models like CUDA, OpenMP, OpenACC and OpenCL are designed to offload compute-intensive workloads to accelerators efficiently. However, the naive offload model, which synchronously copies and executes in sequence, requires extensive hand-tuning of techniques, such as pipelining to overlap computation and communication. Therefore, we propose an easy-to-use, directive-based pipelining extension for OpenMP to overlap data transfers and kernel computation. This extension can map data to a pre-allocated device buffer and can automate memory-constrained array indexing and sub-task scheduling. We evaluate a prototype implementation of our approach with three different applications. The experimental results show that our approach can reduce memory usage by 52% to 97% while delivering a 1.41x to 1.65x speedup over the naive offload model. C1 [Cui, Xuewen; Feng, Wu-chun] Virginia Tech, Blacksburg, VA 24060 USA. [Scogland, Thomas R. W.; de Supinski, Bronis R.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RP Cui, XW (reprint author), Virginia Tech, Blacksburg, VA 24060 USA. EM xuewenc@vt.edu; scogland1@llnl.gov; bronis@llnl.gov; feng@cs.vt.edu NR 16 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 1552-5244 BN 978-1-5090-3653-0 J9 IEEE INT C CL COMP PY 2016 BP 481 EP 484 DI 10.1109/CLUSTER.2016.53 PG 4 WC Computer Science, Hardware & Architecture SC Computer Science GA BG7KM UT WOS:000391414100073 ER PT S AU Suetterlein, JD Landwehr, J Marquez, A Manzano, J Gao, GR AF Suetterlein, Joshua D. Landwehr, Joshua Marquez, Andres Manzano, Joseph Gao, Guang R. GP IEEE TI Extending the Roofline Model for Asynchronous Many-Task Runtimes SO 2016 IEEE INTERNATIONAL CONFERENCE ON CLUSTER COMPUTING (CLUSTER) SE IEEE International Conference on Cluster Computing LA English DT Proceedings Paper CT IEEE International Conference on Cluster Computing (CLUSTER) CY SEP 13-15, 2016 CL Taipei, TAIWAN SP IEEE, IEEE Comp Soc, Natl Tsing Hua Univ, Natl Ctr High Performance Comp, Res Ctr Informat Technol Innovat Academia Sinica, Taiwan Assoc Cloud Comp, NSF, TeraSoft, Minist Sci & Technol, Bur Foreign Trade, TAIPEI, Dept Informat & Tourism, MEDIATEK AB A common practice for application developers is to experimentally determine the granularity of a task after a code has been parallelized based on the observed overhead of a runtime. Instead, we propose a new methodology based on an extended Roofline model to provide practical upper bounds on the throughput performance of an application. First, we extend the Roofline model to support not only latency hiding analysis, but also a multidimensional amortized analysis. By combining this new methodology with a serial application and an Asynchronous Many Task (AMT) runtime implementation, we can predict the worst case runtime overhead attribution of individual runtime features prior to the development of parallel code. C1 [Suetterlein, Joshua D.; Gao, Guang R.] Univ Delaware, Newark, DE 19716 USA. [Landwehr, Joshua; Marquez, Andres; Manzano, Joseph] Pacific Northwest Natl Lab, Richland, WA 99352 USA. RP Suetterlein, JD (reprint author), Univ Delaware, Newark, DE 19716 USA. EM jodasue@udel.edu; joshua.landwehr@pnnl.gov; andres.marquez@pnnl.gov; joseph.manzano@pnnl.gov; ggao.caps1@udel.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 1552-5244 BN 978-1-5090-3653-0 J9 IEEE INT C CL COMP PY 2016 BP 493 EP 496 DI 10.1109/CLUSTER.2016.47 PG 4 WC Computer Science, Hardware & Architecture SC Computer Science GA BG7KM UT WOS:000391414100076 ER PT J AU Oehmen, CS Bruillard, PJ Matzke, BD Phillips, AR Star, KT Jensen, JL Nordwall, D Thompson, S Peterson, ES AF Oehmen, Christopher S. Bruillard, Paul J. Matzke, Brett D. Phillips, Aaron R. Star, Keith T. Jensen, Jeffrey L. Nordwall, Doug Thompson, Seth Peterson, Elena S. GP IEEE TI LINEBACKER: LINE-speed Bio-inspired Analysis and Characterization for Event Recognition SO 2016 IEEE SYMPOSIUM ON SECURITY AND PRIVACY WORKSHOPS (SPW 2016) LA English DT Proceedings Paper CT 37th IEEE Symposium on Security and Privacy (SP) CY MAY 22-26, 2016 CL San Jose, CA SP IEEE, IEEE Comp Soc, IEEE Comp Soc Tech Comm Secur & Privacy DE biosequence model; cybersecurity; leaky buckets ID INTRUSION DETECTION TECHNIQUES; DETECTION SYSTEMS; SEARCH; SIMILARITIES; INFORMATION; BLAST AB The cyber world is a complex domain, with digital systems mediating a wide spectrum of human and machine behaviors. While this is enabling a revolution in the way humans interact with each other and data, it also is exposing previously unreachable infrastructure to a worldwide set of actors. Existing solutions for intrusion detection and prevention that are signature-focused typically seek to detect anomalous and/ or malicious activity for the sake of preventing or mitigating negative impacts. But a growing interest in behavior-based detection is driving new forms of analysis that move the emphasis from static indicators (e.g. rule-based alarms or tripwires) to behavioral indicators that accommodate a wider contextual perspective. Similar to cyber systems, biosystems have always existed in resource-constrained hostile environments where behaviors are tuned by context. So we look to biosystems as an inspiration for addressing behavior-based cyber challenges. In this paper, we introduce LINEBACKER, a behavior-model based approach to recognizing anomalous events in network traffic and present the design of this approach of bio-inspired and statistical models working in tandem to produce individualized alerting for a collection of systems. Preliminary results of these models operating on historic data are presented along with a plugin to support real-world cyber operations. C1 [Oehmen, Christopher S.; Bruillard, Paul J.; Matzke, Brett D.; Phillips, Aaron R.; Star, Keith T.; Jensen, Jeffrey L.; Nordwall, Doug; Thompson, Seth; Peterson, Elena S.] Pacific Northwest Natl Lab, Richland, WA 99352 USA. RP Oehmen, CS (reprint author), Pacific Northwest Natl Lab, Richland, WA 99352 USA. 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 978-1-5090-0823-0 PY 2016 BP 88 EP 95 DI 10.1109/SPW.2016.44 PG 8 WC Computer Science, Theory & Methods; Engineering, Electrical & Electronic SC Computer Science; Engineering GA BG7GQ UT WOS:000391256200013 ER PT J AU Oehmen, CS Peterson, ES Phillips, AR Curtis, DS AF Oehmen, Christopher S. Peterson, Elena S. Phillips, Aaron R. Curtis, Darren S. GP IEEE TI A Biosequence-based Approach to Software Characterization SO 2016 IEEE SYMPOSIUM ON SECURITY AND PRIVACY WORKSHOPS (SPW 2016) LA English DT Proceedings Paper CT 37th IEEE Symposium on Security and Privacy (SP) CY MAY 22-26, 2016 CL San Jose, CA SP IEEE, IEEE Comp Soc, IEEE Comp Soc Tech Comm Secur & Privacy DE software analysis; sequence analysis; cyber security ID PROGRAMS; SEARCH; BLAST; SIMILARITIES; SCALABLAST; TOOL AB For many applications, it is desirable to have a process for recognizing when software binaries are closely related without relying on them to be identical or have identical segments. But doing so in a dynamic environment is a nontrivial task because most approaches to software similarity require extensive and time-consuming analysis of a binary, or they fail to recognize executables that are similar but not identical. Presented herein is a novel biosequence-based method for quantifying similarity of executable binaries. Using this method, we show in an example application on large-scale multi-author codes that 1) the biosequence-based method has a statistical performance in recognizing and distinguishing between a collection of real-world high performance computing applications better than 90% of ideal; and 2) an example of using family-tree analysis to tune identification for a code subfamily can achieve better than 99% of ideal performance. C1 [Oehmen, Christopher S.; Peterson, Elena S.; Phillips, Aaron R.; Curtis, Darren S.] Pacific Northwest Natl Lab, Computat & Stat Analyt Div, Richland, WA 99352 USA. RP Oehmen, CS (reprint author), Pacific Northwest Natl Lab, Computat & Stat Analyt Div, Richland, WA 99352 USA. EM Christopher.Oehmen@pnnl.gov; Elena.Peterson@pnnl.gov; Aaron.Phillips@pnnl.gov; Darren.Curtis@pnnl.gov 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 BN 978-1-5090-0823-0 PY 2016 BP 118 EP 125 DI 10.1109/SPW.2016.43 PG 8 WC Computer Science, Theory & Methods; Engineering, Electrical & Electronic SC Computer Science; Engineering GA BG7GQ UT WOS:000391256200017 ER PT S AU Adams, BW Attenkofer, K Bond, JL Craven, CA Cremer, T O'Mahony, A Minot, MJ Popecki, MA AF Adams, Bernhard W. Attenkofer, Klaus Bond, Justin L. Craven, Christopher A. Cremer, Till O'Mahony, Aileen Minot, Michael J. Popecki, Mark A. BE Khounsary, AM VanDorssen, GE TI Development of Polycapillary X-ray Optics for X-Ray Spectroscopy SO ADVANCES IN LABORATORY-BASED X-RAY SOURCES, OPTICS, AND APPLICATIONS V SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Advances in Laboratory-based X-Ray Sources, Optics, and Applications V CY AUG 30-31, 2016 CL San Diego, CA SP SPIE DE X-ray; polycapillary; capillary; x-ray optics; spectroscopy AB Bundles of hollow glass capillaries can be tapered to produce quasi-focusing x-ray optics. These optics are known as Kumakhov lenses. These optics are interesting for lab-based sources because they can be used to collimate and concentrate x-rays originating from a point, such as a laser focus or an electron-beam focus in a microtube. C1 [Adams, Bernhard W.; Bond, Justin L.; Craven, Christopher A.; Cremer, Till; Minot, Michael J.; Popecki, Mark A.] Incom Inc, Charlton, MA 01507 USA. [Attenkofer, Klaus] Brookhaven Natl Lab, Upton, NY 11973 USA. [O'Mahony, Aileen] Incom, Charlton, MA USA. [O'Mahony, Aileen] Oxford Instrunments, Bristol BS49 4AP, Avon, England. RP Adams, BW (reprint author), Incom Inc, Charlton, MA 01507 USA. EM badams@incomusa.com; kattenkofer@bnl.gov; map@incomusa.com NR 6 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 978-1-5106-0319-6; 978-1-5106-0320-2 J9 PROC SPIE PY 2016 VL 9964 AR 996409 DI 10.1117/12.2238294 PG 7 WC Optics SC Optics GA BG7HJ UT WOS:000391295700006 ER PT S AU Caudevilla, O Zhou, W Stoupin, S Verman, B Brankov, JG AF Caudevilla, Oriol Zhou, Wei Stoupin, Stanislav Verman, Boris Brankov, J. G. BE Khounsary, AM VanDorssen, GE TI Simulation tools for analyzer-based X-ray phase contrast imaging system with a conventional X-ray source SO ADVANCES IN LABORATORY-BASED X-RAY SOURCES, OPTICS, AND APPLICATIONS V SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Advances in Laboratory-based X-Ray Sources, Optics, and Applications V CY AUG 30-31, 2016 CL San Diego, CA SP SPIE DE Analyzer-based Imaging; X-ray imaging; Phase-contrast; Diffraction Enhanced Imaging; Multiple Image Radiograpy ID DIFFRACTION; CRYSTALS AB Analyzer-based X-ray phase contrast imaging (ABI) belongs to a broader family of phase-contrast (PC) X-ray imaging modalities. Unlike the conventional X-ray radiography, which measures only X-ray absorption, in PC imaging one can also measures the X-rays deflection induced by the object refractive properties. It has been shown that refraction imaging provides better contrast when imaging the soft tissue, which is of great interest in medical imaging applications. In this paper, we introduce a simulation tool specifically designed to simulate the analyzer-based X-ray phase contrast imaging system with a conventional polychromatic X-ray source. By utilizing ray tracing and basic physical principles of diffraction theory our simulation tool can predicting the X-ray beam profile shape, the energy content, the total throughput (photon count) at the detector. In addition we can evaluate imaging system point-spread function for various system configurations. C1 [Caudevilla, Oriol; Brankov, J. G.] IIT, Dept Elect & Comp Engn, 3301 S Dearborn St, Chicago, IL 60616 USA. [Zhou, Wei] IIT, Dept Biomed Engn, 3301 S Dearborn St, Chicago, IL 60616 USA. [Stoupin, Stanislav] Argonne Natl Lab, 9700 Cass Ave, Lemont, IL 60439 USA. RP Caudevilla, O (reprint author), IIT, Dept Elect & Comp Engn, 3301 S Dearborn St, Chicago, IL 60616 USA. NR 15 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 978-1-5106-0319-6; 978-1-5106-0320-2 J9 PROC SPIE PY 2016 VL 9964 AR 99640E DI 10.1117/12.2241205 PG 5 WC Optics SC Optics GA BG7HJ UT WOS:000391295700008 ER PT S AU Antipov, S Baryshev, S Baturin, S Chen, GXH Kostin, R Stoupin, S AF Antipov, Sergey Baryshev, Sergey Baturin, Stanislav Chen, Gongxiaohui Kostin, Roman Stoupin, Stanislav BE Khounsary, AM Goto, S Morawe, C TI Thermal Analysis of the Diamond Compound Refractive Lens SO ADVANCES IN X-RAY/EUV OPTICS AND COMPONENTS XI SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Advances in X-Ray/EUV Optics and Components XI held as part of the SPIE International Symposium on Optics + Photonics CY AUG 31-SEP 01, 2016 CL San Diego, CA SP SPIE DE Compound refractive lens; diamond; thermal management ID X-RAYS; DESIGN AB Two dimensional compound refractive lenses (CRL) made out of single crystal diamond have been recently demonstrated [1, 2]. The use of a compound refractive lens is inevitably associated with high x-ray absorption. One of the benefits of diamond as a material for CRLs is its ability to withstand high instantaneous and average heat load. We used the finite element method to simulate thermal effects in the lens. A steady state simulation is done for high average heat load conditions of X-ray free electron lasers and ultimate storage rings. We compare diamond with beryllium, a common material for the x-ray refractive optics, and find that the diamond lens heats up less than equivalent beryllium one at energies above 18 keV. Due to lower thermal expansion coefficient diamond lens can maintain its performance also at lower energy spectrum 10 - 18 keV even though its temperature increase is higher than that of beryllium. C1 [Antipov, Sergey; Baryshev, Sergey; Baturin, Stanislav; Chen, Gongxiaohui; Kostin, Roman] Euclid Techlabs LLC, Bolingbrook, IL 60440 USA. [Antipov, Sergey] Argonne Natl Lab, Argonne Wakefield Accelerator Facil, Argonne, IL 60439 USA. [Stoupin, Stanislav] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. RP Antipov, S (reprint author), Euclid Techlabs LLC, Bolingbrook, IL 60440 USA.; Antipov, S (reprint author), Argonne Natl Lab, Argonne Wakefield Accelerator Facil, Argonne, IL 60439 USA. NR 15 TC 1 Z9 1 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 978-1-5106-0317-2; 978-1-5106-0318-9 J9 PROC SPIE PY 2016 VL 9963 AR UNSP 99630R DI 10.1117/12.2238442 PG 5 WC Optics; Imaging Science & Photographic Technology SC Optics; Imaging Science & Photographic Technology GA BG7JJ UT WOS:000391364700014 ER PT S AU Stoupin, S Antipov, SP Baryshev, SV Baturin, S Liu, ZP Khounsary, AM Segre, CU AF Stoupin, Stanislav Antipov, Sergey P. Baryshev, Sergey V. Baturin, Stanislav Liu, Zunping Khounsary, Ali M. Segre, Carlo U. BE Khounsary, AM Goto, S Morawe, C TI Studies of single crystal CVD diamonds for potential applications in x-ray crystal optics SO ADVANCES IN X-RAY/EUV OPTICS AND COMPONENTS XI SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Advances in X-Ray/EUV Optics and Components XI held as part of the SPIE International Symposium on Optics + Photonics CY AUG 31-SEP 01, 2016 CL San Diego, CA SP SPIE DE x-ray diffraction; CVD diamond; x-ray monochromator ID ENERGY SYNCHROTRON-RADIATION; ASYMMETRIC LAUE CRYSTALS; MONOCHROMATORS; REFLECTION AB Several single crystal CVD diamonds with (001) and (111) surface orientations were studied using x-ray diffraction rocking curve mapping in the double-crystal pseudo plane-wave con figuration using Bragg reflection geometry. Strongly nonuniform distributions of rocking curve parameters on the studied crystal surfaces were observed, which indicates that the crystals exhibit substantial lattice distortions. Selected crystal pairs were tested in the nondispersive double-crystal configuration using polychromatic bending magnet synchrotron radiation. The results suggest that CVD diamond crystals could be used as high-flux broadband x-ray monochromators in applications where preservation of the radiation wavefront is not a primary goal. C1 [Stoupin, Stanislav; Liu, Zunping] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. [Antipov, Sergey P.; Baryshev, Sergey V.; Baturin, Stanislav] Euclid TechLabs, Solon, OH USA. [Khounsary, Ali M.; Segre, Carlo U.] IIT, Chicago, IL 60616 USA. RP Stoupin, S (reprint author), Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. EM sstoupin@aps.anl.gov NR 22 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 978-1-5106-0317-2; 978-1-5106-0318-9 J9 PROC SPIE PY 2016 VL 9963 AR UNSP 99630D DI 10.1117/12.2238448 PG 10 WC Optics; Imaging Science & Photographic Technology SC Optics; Imaging Science & Photographic Technology GA BG7JJ UT WOS:000391364700007 ER PT S AU Suvorov, A Cai, YQ AF Suvorov, Alexey Cai, Yong Q. BE Khounsary, AM Goto, S Morawe, C TI Simulation of an IXS imaging analyzer with an extended scattering source SO ADVANCES IN X-RAY/EUV OPTICS AND COMPONENTS XI SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Advances in X-Ray/EUV Optics and Components XI held as part of the SPIE International Symposium on Optics + Photonics CY AUG 31-SEP 01, 2016 CL San Diego, CA SP SPIE DE Inelastic x-ray scattering; x-ray spectrograph; x ray optics; numerical simulation AB A concept of an inelastic x-ray scattering (IXS) spectrograph with an imaging analyzer was proposed recently and discussed in a number of publications (see e.g. Ref. 1). The imaging analyzer as proposed combines x-ray lenses with highly dispersive crystal optics. It allows conversion of the x-ray energy spectrum into a spatial image with very high energy resolution. However, the presented theoretical analysis of the spectrograph did not take into account details of the scattered radiation source, i.e. sample, and its impact on the spectrograph performance. Using numerical simulations we investigated the influence of the finite sample thickness, the scattering angle and the incident energy detuning on the analyzer image and the ultimate resolution. C1 [Suvorov, Alexey; Cai, Yong Q.] Brookhaven Natl Lab, Natl Synchrotron Light Source II, Upton, NY 11973 USA. RP Suvorov, A (reprint author), Brookhaven Natl Lab, Natl Synchrotron Light Source II, Upton, NY 11973 USA. EM asuvorov@bnl.gov NR 5 TC 0 Z9 0 U1 0 U2 0 PU SPIE-INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA SN 0277-786X BN 978-1-5106-0317-2; 978-1-5106-0318-9 J9 PROC SPIE PY 2016 VL 9963 AR UNSP 99630A DI 10.1117/12.2237868 PG 7 WC Optics; Imaging Science & Photographic Technology SC Optics; Imaging Science & Photographic Technology GA BG7JJ UT WOS:000391364700005 ER PT S AU Terentyev, S Blank, V Kolodziej, T Shvyd'ko, Y AF Terentyev, Sergey Blank, Vladimir Kolodziej, Tomasz Shvyd'ko, Yuri BE Khounsary, AM Goto, S Morawe, C TI Bent diamond-crystal X-ray spectrographs for X-ray free-electron laser noninvasive diagnostics SO ADVANCES IN X-RAY/EUV OPTICS AND COMPONENTS XI SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Advances in X-Ray/EUV Optics and Components XI held as part of the SPIE International Symposium on Optics + Photonics CY AUG 31-SEP 01, 2016 CL San Diego, CA SP SPIE ID SYNCHROTRON-RADIATION; SPECTROMETER; OPTICS; REFLECTIVITY AB We report on the manufacturing and X-ray tests of bent diamond-crystal X-ray spectrographs, designed for noninvasive diagnostics of the X-ray free-electron laser (XFEL) spectra in the spectral range from 5 to 15 keV. The key component is a curved, 20-mu m thin, single crystalline diamond triangular plate in the (110) orientation. The radius of curvature can be varied between R = 0:6 m and R = 0:1 m in a controlled fashion, ensuring imaging in a spectral window of up to 60 eV for similar or equal to 8 keV X-rays. All of the components of the bending mechanism (about 10 parts) are manufactured from diamond, thus ensuring safe operations in intense XFEL beams. The spectrograph is transparent to 88% for 5-keV photons, and to 98% for 15-keV photons. Therefore, it can be used for noninvasive diagnostics of the X-ray spectra during XFEL operations. C1 [Terentyev, Sergey; Blank, Vladimir] Technol Inst Superhard & Novel Carbon Mat, Troitsk 142190, Russia. [Kolodziej, Tomasz; Shvyd'ko, Yuri] Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. RP Shvyd'ko, Y (reprint author), Argonne Natl Lab, Adv Photon Source, Argonne, IL 60439 USA. EM shvydko@aps.anl.gov NR 29 TC 0 Z9 0 U1 0 U2 0 PU SPIE-INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA SN 0277-786X BN 978-1-5106-0317-2; 978-1-5106-0318-9 J9 PROC SPIE PY 2016 VL 9963 AR UNSP 99630B DI 10.1117/12.2238006 PG 10 WC Optics; Imaging Science & Photographic Technology SC Optics; Imaging Science & Photographic Technology GA BG7JJ UT WOS:000391364700006 ER PT S AU Voronov, DL Warwick, T Gullikson, EM Salmassi, F Naulleau, P Artemiev, NA Lum, P Padmore, HA AF Voronov, D. L. Warwick, T. Gullikson, E. M. Salmassi, F. Naulleau, P. Artemiev, N. A. Lum, P. Padmore, H. A. BE Khounsary, AM Goto, S Morawe, C TI High efficiency diffraction grating for EUV lithography beamline monochromator SO ADVANCES IN X-RAY/EUV OPTICS AND COMPONENTS XI SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Advances in X-Ray/EUV Optics and Components XI held as part of the SPIE International Symposium on Optics + Photonics CY AUG 31-SEP 01, 2016 CL San Diego, CA SP SPIE DE diffraction grating; x-rays; direct write lithography; plasma etch; anisotropic etch; diffraction efficiency AB A blazed diffraction grating for the EUV lithography Beamline 12.0.1 of the Advanced Light Source has been fabricated using optical direct write lithography and anisotropic wet etching technology. A variable line spacing pattern was recorded on a photoresist layer and transferred to a hard mask layer of the grating substrate by a plasma etch. Then anisotropic wet etching was applied to shape triangular grating grooves with precise control of the ultra-low blaze angle. Variation of the groove density along the grating length was measured with a Long Trace Profiler (LTP). Fourier analysis of the LTP data confirmed high groove placement accuracy of the grating. The grating coated with a Ru coating demonstrated diffraction efficiency of 69.6% in the negative first diffraction order which is close to theoretical efficiency at the wavelength of 13.5 nm. This work demonstrates an alternative approach to fabrication of highly efficient and precise x-ray diffraction gratings with ultra-low blaze angles. C1 [Voronov, D. L.; Warwick, T.; Gullikson, E. M.; Salmassi, F.; Naulleau, P.; Padmore, H. A.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. [Artemiev, N. A.] KLA Tencor Corp, Milpitas, CA 95035 USA. [Lum, P.] Univ Calif Berkeley, Biomol Nanotechnol Ctr, Berkeley, CA 94720 USA. RP Voronov, DL (reprint author), Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. EM dlvoronov@lbl.gov NR 11 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 978-1-5106-0317-2; 978-1-5106-0318-9 J9 PROC SPIE PY 2016 VL 9963 AR UNSP 996306 DI 10.1117/12.2238303 PG 7 WC Optics; Imaging Science & Photographic Technology SC Optics; Imaging Science & Photographic Technology GA BG7JJ UT WOS:000391364700003 ER PT J AU Behrle, AC Myers, AJ Rungthanaphatsophon, P Lukens, WW Barnes, CL Walensky, JR AF Behrle, Andrew C. Myers, Alexander J. Rungthanaphatsophon, Pokpong Lukens, Wayne W. Barnes, Charles L. Walensky, Justin R. TI Uranium(III) and thorium(IV) alkyl complexes as potential starting materials SO CHEMICAL COMMUNICATIONS LA English DT Article ID SLOW MAGNETIC-RELAXATION; ORGANOMETALLIC CHEMISTRY; COORDINATION CHEMISTRY; TRIVALENT URANIUM; REACTIVITY; SPECTROSCOPY; ACTIVATION; ACTINIDES; REAGENTS; LIGANDS AB The synthesis and characterisation of a rare U(III) alkyl complex, U[eta(4)-Me2NC(H)C6H5](3), using the dimethylbenzylamine (DMBA) ligand has been accomplished. While attempting to prepare the U(IV) compound, reduction to the U(III) complex occurred. In the analogous Th(IV) system, C-H bond activation of a methyl group of one dimethylamine was observed yielding Th[eta(4)-Me2NC(H)C6H5](2)[eta(5)-(CH2)MeNC(H)C6H5] with a dianionic DMBA ligand. The utility of these complexes as starting materials has been analyzed using a bulky dithiocarboxylate ligand to yield tetravalent actinide species. C1 [Behrle, Andrew C.; Myers, Alexander J.; Rungthanaphatsophon, Pokpong; Barnes, Charles L.; Walensky, Justin R.] Univ Missouri, Dept Chem, Columbia, MO 65211 USA. [Lukens, Wayne W.] Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA. RP Walensky, JR (reprint author), Univ Missouri, Dept Chem, Columbia, MO 65211 USA. EM WalenskyJ@missouri.edu FU Department of Energy, Office of Science Early Career Research Program [DE-SC-0014174]; U.S. Department of Energy, Office of Science, Basic Energy Sciences, Chemical Sciences, Biosciences, and Geosciences Division (CSGB), Heavy Element Chemistry Program; Lawrence Berkeley National Laboratory [DE-AC02-05CH11231] FX We gratefully acknowledge the Department of Energy, Office of Science Early Career Research Program under Award DE-SC-0014174 (JRW). WWL was supported by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, Chemical Sciences, Biosciences, and Geosciences Division (CSGB), Heavy Element Chemistry Program and was performed at Lawrence Berkeley National Laboratory under contract No. DE-AC02-05CH11231. NR 32 TC 1 Z9 1 U1 0 U2 0 PU ROYAL SOC CHEMISTRY PI CAMBRIDGE PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND SN 1359-7345 EI 1364-548X J9 CHEM COMMUN JI Chem. Commun. PY 2016 VL 52 IS 100 BP 14373 EP 14375 DI 10.1039/c6cc08105c PG 3 WC Chemistry, Multidisciplinary SC Chemistry GA EG7YQ UT WOS:000391272900005 PM 27847956 ER PT J AU Soltau, SR Dahlberg, PD Niklas, J Poluektov, OG Mulfort, KL Utschig, LM AF Soltau, Sarah R. Dahlberg, Peter D. Niklas, Jens Poluektov, Oleg G. Mulfort, Karen L. Utschig, Lisa M. TI Ru-protein-Co biohybrids designed for solar hydrogen production: understanding electron transfer pathways related to photocatalytic function SO CHEMICAL SCIENCE LA English DT Article ID AQUEOUS-SOLUTION; PHOTOSYSTEM-I; CYTOCHROME-C; REDOX POTENTIALS; COBALT HYDRIDE; COBALOXIME; EVOLUTION; FERREDOXIN; CATALYSTS; WATER AB A series of Ru-protein-Co biohybrids have been prepared using the electron transfer proteins ferredoxin (Fd) and flavodoxin (Fld) as scaffolds for photocatalytic hydrogen production. The light-generated charge separation within these hybrids has been monitored by transient optical and electron paramagnetic resonance spectroscopies. Two distinct electron transfer pathways are observed. The Ru-Fd-Co biohybrid produces up to 650 turnovers of H-2 utilizing an oxidative quenching mechanism for Ru(II)* and a sequential electron transfer pathway via the native [2Fe-2S] cluster to generate a Ru(III)-Fd-Co(I) charge separated state that lasts for similar to 6 ms. In contrast, a direct electron transfer pathway occurs for the Ru-ApoFld-Co biohybrid, which lacks an internal electron relay, generating Ru(I)-ApoFld-Co(I) charge separated state that persists for similar to 800 mu s and produces 85 turnovers of H-2 by a reductive quenching mechanism for Ru(II)*. This work demonstrates the utility of protein architectures for linking donor and catalytic function via direct or sequential electron transfer pathways to enable stabilized charge separation which facilitates photocatalysis for solar fuel production. C1 [Soltau, Sarah R.; Dahlberg, Peter D.; Niklas, Jens; Poluektov, Oleg G.; Mulfort, Karen L.; Utschig, Lisa M.] Argonne Natl Lab, Chem Sci & Engn Div, 9700 S Cass Ave, Argonne, IL 60439 USA. [Dahlberg, Peter D.] Univ Chicago, Grad Program Biophys, Chicago, IL 60637 USA. RP Utschig, LM (reprint author), Argonne Natl Lab, Chem Sci & Engn Div, 9700 S Cass Ave, Argonne, IL 60439 USA. EM utschig@anl.gov RI Niklas, Jens/I-8598-2016 OI Niklas, Jens/0000-0002-6462-2680 FU Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences of the U.S. Department of Energy [DE-AC02-06CH11357] FX This work is supported by the Division of Chemical Sciences, Geosciences, and Biosciences, Office of Basic Energy Sciences of the U.S. Department of Energy under Contract No. DE-AC02-06CH11357. NR 68 TC 3 Z9 3 U1 4 U2 4 PU ROYAL SOC CHEMISTRY PI CAMBRIDGE PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND SN 2041-6520 EI 2041-6539 J9 CHEM SCI JI Chem. Sci. PY 2016 VL 7 IS 12 BP 7068 EP 7078 DI 10.1039/c6sc03121h PG 11 WC Chemistry, Multidisciplinary SC Chemistry GA EH0KQ UT WOS:000391453200028 ER PT J AU Sayer, RA AF Sayer, Robert A. TI THERMAL CONTACT CONDUCTANCE AS A METHOD OF RECTIFICATION IN BULK MATERIALS SO HEAT TRANSFER RESEARCH LA English DT Article DE thermal contact conductance; thermal rectification; thermal contact resistance AB A thermal rectifier that utilizes thermal expansion to directionally control interfacial conductance between two contacting surfaces is presented. The device consists of two thermal reservoirs contacting a beam with one rough and one smooth end. When the temperature of reservoir in contact with the smooth surface is raised, a similar temperature rise will occur in the beam, causing it to expand, thus increasing the contact pressure at the rough interface and reducing the interfacial contact resistance. However, if the temperature of the reservoir in contact with the rough interface is raised, the large contact resistance will prevent a similar temperature rise in the beam. As a result, the contact pressure will be marginally affected and the contact resistance will not change appreciably. Owing to the decreased contact resistance of the first scenario compared to the second, thermal rectification occurs. A parametric analysis is used to determine optimal device parameters including surface roughness, contact pressure, and device length. Modeling predicts that rectification factors greater than 2 are possible at thermal biases as small as 3 K. Additionally, thin surface coatings are discussed as a method to control the temperature bias at which maximum rectification occurs. C1 [Sayer, Robert A.] Sandia Natl Labs, Engn Sci Ctr, POB 5800, Albuquerque, NM 87185 USA. RP Sayer, RA (reprint author), Sandia Natl Labs, Engn Sci Ctr, POB 5800, Albuquerque, NM 87185 USA. EM rsayer@sandia.gov FU U.S. Department of Energy's National Nuclear Security Administration [DE-AC04-94AL85000] FX The author acknowledges Timothy P. Koehler for discussions related to this work. Sandia National Laboratories is a multi-program laboratory managed and operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, for the U.S. Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000. NR 28 TC 0 Z9 0 U1 0 U2 0 PU BEGELL HOUSE INC PI DANBURY PA 50 NORTH ST, DANBURY, CT 06810 USA SN 1064-2285 EI 2162-6561 J9 HEAT TRANSF RES JI Heat Transf. Res. PY 2016 VL 47 IS 8 BP 733 EP 744 DI 10.1615/HeatTransRes.2016010297 PG 12 WC Thermodynamics SC Thermodynamics GA EG8PP UT WOS:000391319500004 ER PT S AU Haugan, HJ Olson, BV Brown, GJ Kadlec, EA Kim, JK Shaner, EA AF Haugan, H. J. Olson, B. V. Brown, G. J. Kadlec, E. A. Kim, J. K. Shaner, E. A. BE LeVan, PD Sood, AK Wijewarnasuriya, P DSouza, AI TI Study of minority carrier lifetimes in very long-wave infrared strained-layer InAs/GaInSb superlattices SO INFRARED SENSORS, DEVICES, AND APPLICATIONS VI SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Infrared Sensors, Devices, and Applications VI CY AUG 31-SEP 01, 2016 CL San Diego, CA SP SPIE ID DETECTORS; GROWTH; GASB AB Significantly improved carrier lifetimes in very long wavelength infrared (VLWIR) InAs/GaInSb superlattice (SL) absorbers are demonstrated by using time-resolved microwave reflectance (TMR) measurements. A nominal 47.0 angstrom InAs/21.5 angstrom Ga0.75In0.25Sb SL structure that produces an approximately 25 mu m response at 10 K has a minority carrier lifetime of 140 +/- 20 ns at 18 K, which is an order-of-magnitude improvement compare to previously reported lifetime values for other VLWIR detector absorbers. This improvement is attributed to the strain-engineered ternary SL design, which offers a variety of epitaxial advantages and ultimately leads to the improvements in the minority carrier lifetime by mitigating defect-mediated Shockley-Read-Hall (SRH) recombination centers. By analyzing the temperaturedependence of TMR decay data, the recombination mechanisms and trap states that currently limit the performance of this SL absorber are identified. The results show a general decrease in the long-decay lifetime component, which is dominated by SRH recombination at temperatures below similar to 30 K, and by Auger recombination at temperatures above similar to 45 K. This result implies that minimal improvement can be made in the minority carrier lifetime at temperatures greater than 45 K without further suppressing Auger recombination through proper band engineering, which suggests that the improvement to be gained by mitigation of the SRH defects would not be substantial at these temperatures. At temperatures lower than 30 K, some improvement can be attained by mitigated of the SRH recombination centers. Since the strain-balanced ternary SL design offers a reasonably good absorption coefficient and many epitaxial advantages during growth, this VLWIR SL material system should be considered a competitive candidate for VLWIR photodetector technology. C1 [Haugan, H. J.; Brown, G. J.] US Air Force, Res Lab, Mat & Mfg Directorate, Wright Patterson AFB, OH 45433 USA. [Olson, B. V.; Kadlec, E. A.; Kim, J. K.; Shaner, E. A.] Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Haugan, HJ (reprint author), US Air Force, Res Lab, Mat & Mfg Directorate, Wright Patterson AFB, OH 45433 USA. NR 28 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 978-1-5106-0339-4; 978-1-5106-0340-0 J9 PROC SPIE PY 2016 VL 9974 AR UNSP 997403 DI 10.1117/12.2236535 PG 10 WC Optics; Imaging Science & Photographic Technology SC Optics; Imaging Science & Photographic Technology GA BG6UH UT WOS:000390844000001 ER PT S AU Morea, M Gu, K Savikhin, V Fenrich, CS Pop, E Harris, JS AF Morea, Matthew Gu, Kevin Savikhin, Victoria Fenrich, Colleen S. Pop, Eric Harris, James S. BE LeVan, PD Sood, AK Wijewarnasuriya, P DSouza, AI TI Optimization of TCR and Heat Transport in Group-IV Multiple-Quantum-Well Microbolometers SO INFRARED SENSORS, DEVICES, AND APPLICATIONS VI SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Infrared Sensors, Devices, and Applications VI CY AUG 31-SEP 01, 2016 CL San Diego, CA SP SPIE DE bolometer; microbolometer; TCR; Group-IV; SiGe; GeSn; quantum well AB Group-IV semiconductors have the opportunity to have an equivalent or better temperature coefficient of resistance (TCR) than other microbolometer thermistor materials. By using multiple-quantum-well (MQW) structures, their TCR values can be optimized due to a confinement of carriers. Through two approaches - an activation energy approximation and a custom Monte Carlo transfer matrix method - we simulated this effect for a combination of Group-IV semiconductors and their alloys (e.g., SiGe and GeSn) to find the highest possible TCR, while keeping in mind the critical thicknesses of such layers in a MQW epitaxial stack. We calculated the TCR for a critical-thickness-limited Ge0.8Sn0.2/Ge MQW device to be about - 1.9 %/K. Although this TCR is lower than similar SiGe/Si MQW thermistors, GeSn offers possible advantages in terms of fabricating suspended devices with its interesting etch-stop properties shown in previous literature. Furthermore, using finite element modeling of heat transport, we looked at another key bolometer parameter: the thermal time constant. The dimensions of a suspended Ge microbolometer's supporting legs were fine-tuned for a target response time of 5 ms, incorporating estimations for the size effects of the nanowire-like legs on thermal conductivity. C1 [Morea, Matthew; Savikhin, Victoria; Fenrich, Colleen S.; Pop, Eric; Harris, James S.] Stanford Univ, Dept Elect Engn, Stanford, CA 94305 USA. [Gu, Kevin] Stanford Univ, Dept Chem Engn, Stanford, CA 94305 USA. [Savikhin, Victoria] SLAC Natl Accelerator Lab, SSRL, Menlo Pk, CA 94025 USA. RP Morea, M (reprint author), Stanford Univ, Dept Elect Engn, Stanford, CA 94305 USA. OI Fenrich, Colleen/0000-0001-7635-3556 NR 14 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 978-1-5106-0339-4; 978-1-5106-0340-0 J9 PROC SPIE PY 2016 VL 9974 AR UNSP 99740M DI 10.1117/12.2236166 PG 7 WC Optics; Imaging Science & Photographic Technology SC Optics; Imaging Science & Photographic Technology GA BG6UH UT WOS:000390844000015 ER PT S AU Awwal, AAS AF Awwal, Abdul A. S. BE Iftekharuddin, KM Awwal, AAS Vazquez, MG Marquez, A Matin, MA TI Designing projects for motivating students towards scientific exploration: Application to student mentoring SO OPTICS AND PHOTONICS FOR INFORMATION PROCESSING X SE Proceedings of SPIE LA English DT Proceedings Paper CT 10th Conference on Optics and Photonics for Information Processing CY AUG 29-30, 2016 CL San Diego, CA SP SPIE DE laser measurement; pattern recognition; matched filtering; position detection; high power laser; optical alignment ID BEAM; ALIGNMENT; RULINGS AB Every summer in the National Ignition Facility (NIF) at Lawrence Livermore National Laboratory, students are brought in to gain interesting research and development experience. In this work, we will review some case studies of past research experiences with students inside and outside NIF, that led to successful journal and conference publications. Several of these works will be reviewed to demonstrate how problems were chosen and defined so that meaningful results could be obtained within a limited time frame. It is anticipated that success with such projects will go a long way in motivating students in their future graduate career. Projects from laser measurement, optical computing and application of matched filtering in laser beam alignment will be reviewed to demonstrate this approach. C1 [Awwal, Abdul A. S.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. RP Awwal, AAS (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. EM awwal1@llnl.gov NR 10 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 978-1-5106-0331-8; 978-1-5106-0332-5 J9 PROC SPIE PY 2016 VL 9970 AR UNSP 99700R DI 10.1117/12.2239306 PG 7 WC Engineering, Electrical & Electronic; Optics; Physics, Applied SC Engineering; Optics; Physics GA BG7JB UT WOS:000391357500021 ER PT S AU Duan, SS Zhang, HB AF Duan, Sisi Zhang, Haibin GP IEEE TI Practical State Machine Replication with Confidentiality SO PROCEEDINGS OF 2016 IEEE 35TH SYMPOSIUM ON RELIABLE DISTRIBUTED SYSTEMS (SRDS) SE Symposium on Reliable Distributed Systems Proceedings LA English DT Proceedings Paper CT 35th IEEE International Symposium on Reliable Distributed Systems Workshops (SRDSW) CY SEP 26-29, 2016 CL Budapest, HUNGARY SP IEEE, IEEE Comp Soc Tech Comm Distributed Proc, Budapest Univ Technol & Econ, Fac Elect Engn & Informat, Dept Measurement & Informat Syst AB We address the problem of how to store and process data privately in cloud environments that employ state machine replication. We show that the only known solution to the problem (Yin et al., SOSP '03) is potentially susceptible to attacks. We then present a new protocol that is secure in the stronger model we formalize. Our protocol uses only efficient symmetric cryptography, while Yin et al.' s uses costly threshold signatures. We implemented and evaluated our protocol. We show that our protocol is two to three orders of magnitude faster than Yin et al.' s, which is less secure than ours. C1 [Duan, Sisi] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Zhang, Haibin] Univ N Carolina, Chapel Hill, NC USA. RP Duan, SS (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. EM duans@ornl.gov; haibin@cs.unc.edu NR 51 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 1060-9857 BN 978-1-5090-3513-7 J9 SYM REL DIST SYST PY 2016 BP 187 EP 196 DI 10.1109/SRDS.2016.29 PG 10 WC Computer Science, Hardware & Architecture; Computer Science, Information Systems; Engineering, Electrical & Electronic SC Computer Science; Engineering GA BG7OP UT WOS:000391526500020 ER PT S AU Neuwirth, S Wang, FY Oral, S Vazhkudai, S Rogers, JH Bruening, U AF Neuwirth, Sarah Wang, Feiyi Oral, Sarp Vazhkudai, Sudharshan Rogers, James H. Bruening, Ulrich GP IEEE TI Using Balanced Data Placement to Address I/O Contention in Production Environments SO PROCEEDINGS OF 28TH IEEE INTERNATIONAL SYMPOSIUM ON COMPUTER ARCHITECTURE AND HIGH PERFORMANCE COMPUTING, (SBAC-PAD 2016) SE International Symposium on Computer Architecture and High Performance Computing LA English DT Proceedings Paper CT 28th IEEE International Symposium on Computer Architecture and High Performance Computing (SBAC-PAD) CY OCT 26-28, 2016 CL Los Angeles, CA SP IEEE, IEEE Comp Soc, UNICAMP, Brazilian Comp Soc, Univ S California, UC Irvine, LG DE Parallel File System; High Performance Computing; Load Balancing; Performance Evaluation AB Designed for capacity and capability, HPC I/O systems are inherently complex and shared among multiple, concurrent jobs competing for resources. Lack of centralized coordination and control often render the end-to-end I/O paths vulnerable to load imbalance and contention. With the emergence of data-intensive HPC applications, storage systems are further contended for performance and scalability. This paper proposes to unify two key approaches to tackle the imbalanced use of I/O resources and to achieve an end-to-end I/O performance improvement in the most transparent way. First, it utilizes a topology-aware, Balanced Placement I/O method (BPIO) for mitigating resource contention. Second, it takes advantage of the platform-neutral ADIOS middle-ware, which provides a flexible I/O mechanism for scientific applications. By integrating BPIO with ADIOS, referred to as Aequilibro, we obtain an end-to-end and per job I/O performance improvement for ADIOS-enabled HPC applications without requiring any code changes. Aequilibro can be applied to almost any HPC platform and is mostly suitable for systems that lack a centralized file system resource manager. We demonstrate the effectiveness of our integration on the Titan system at the Oak Ridge National Laboratory. Our experiments with a synthetic benchmark and real-world HPC workload show that, even in a noisy production environment, Aequilibro can improve large-scale application performance significantly. C1 [Neuwirth, Sarah; Bruening, Ulrich] Heidelberg Univ, Inst Comp Engn, D-69115 Heidelberg, Germany. [Wang, Feiyi; Oral, Sarp; Vazhkudai, Sudharshan; Rogers, James H.] Oak Ridge Natl Lab, Natl Ctr Computat Sci, Oak Ridge, TN USA. RP Neuwirth, S (reprint author), Heidelberg Univ, Inst Comp Engn, D-69115 Heidelberg, Germany. EM sarah.neuwirth@ziti.uni-heidelberg.de; fwang2@ornl.gov; oralhs@ornl.gov; vazhkudaiss@ornl.gov; jrogers@ornl.gov; ulrich.bruening@ziti.uni-heidelberg.de NR 33 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 1550-6533 BN 978-1-5090-6108-2 J9 INT SYM COMP ARCHIT PY 2016 BP 9 EP 17 DI 10.1109/SBAC-PAD.2016.10 PG 9 WC Computer Science, Hardware & Architecture; Computer Science, Theory & Methods; Engineering, Electrical & Electronic SC Computer Science; Engineering GA BG7JW UT WOS:000391392400002 ER PT S AU Umar, M Meredith, JS Vetter, JS Cameron, KW AF Umar, Mariam Meredith, Jeremy S. Vetter, Jeffrey S. Cameron, Kirk W. GP IEEE TI A Study of Power-Performance Modeling using a Domain-Specific Language SO PROCEEDINGS OF 28TH IEEE INTERNATIONAL SYMPOSIUM ON COMPUTER ARCHITECTURE AND HIGH PERFORMANCE COMPUTING, (SBAC-PAD 2016) SE International Symposium on Computer Architecture and High Performance Computing LA English DT Proceedings Paper CT 28th IEEE International Symposium on Computer Architecture and High Performance Computing (SBAC-PAD) CY OCT 26-28, 2016 CL Los Angeles, CA SP IEEE, IEEE Comp Soc, UNICAMP, Brazilian Comp Soc, Univ S California, UC Irvine, LG AB Energy use is now a first-class design constraint in high-performance systems and applications. Improving our understanding of application energy consumption in diverse, heterogeneous systems will be essential to efficient operation. For example, power limits in large scale parallel and distributed systems will require optimizing performance under energy constraints. However, with increased levels of parallelism, complex memory hierarchies, hardware heterogeneity, and diverse programming models and interfaces, improving performance and energy efficiency simultaneously is exceedingly difficult. Our thesis is that estimating energy use, either a priori or as soon as possible at runtime, will be essential to future systems. Such estimates must adapt with changes in applications across hardware configurations. Existing approaches offer insight and detail, but typically are too cumbersome to enable adaptation at runtime or lack portability or accuracy. To overcome these limitations, we propose two energy estimation techniques which use the Aspen domain specific language for performance modeling: ACEE (Algorithmic and Categorical Energy Estimation), a combination of analytical and empirical modeling techniques embedded in a runtime framework that leverages Aspen, and AEEM (Aspen's Embedded Energy Modeling), a system level coarse-grained energy estimation technique that uses performance modeling from Aspen to generate energy estimations at runtime. This paper presents methodology of the models and examines their accuracy as well as their advantages and challenges in several use cases. C1 [Umar, Mariam; Cameron, Kirk W.] Virginia Tech, Dept Comp Sci, Blacksburg, VA 24061 USA. [Meredith, Jeremy S.; Vetter, Jeffrey S.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP Umar, M (reprint author), Virginia Tech, Dept Comp Sci, Blacksburg, VA 24061 USA. EM mariam.umar@vt.edu; jsmeredith@ornl.gov; vetter@ornl.gov; cameron@vt.edu 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 SN 1550-6533 BN 978-1-5090-6108-2 J9 INT SYM COMP ARCHIT PY 2016 BP 84 EP 92 DI 10.1109/SBAC-PAD.2016.19 PG 9 WC Computer Science, Hardware & Architecture; Computer Science, Theory & Methods; Engineering, Electrical & Electronic SC Computer Science; Engineering GA BG7JW UT WOS:000391392400011 ER PT J AU Snyder, S Carns, P Harms, K Ross, R Lockwood, GK Wright, NJ AF Snyder, Shane Carns, Philip Harms, Kevin Ross, Robert Lockwood, Glenn K. Wright, Nicholas J. GP IEEE TI Modular HPC I/O Characterization with Darshan SO PROCEEDINGS OF ESPT 2016: 5TH WORKSHOP ON EXTREME-SCALE PROGRAMMING TOOLS LA English DT Proceedings Paper CT 5th Workshop on Extreme-Scale Programming Tools (ESPT) CY NOV 13-18, 2016 CL Salt Lake City, UT SP IEEE Comp Soc, ACM, Sighpc AB Contemporary high-performance computing (HPC) applications encompass a broad range of distinct I/O strategies and are often executed on a number of different compute platforms in their lifetime. These large-scale HPC platforms employ increasingly complex I/O subsystems to provide a suitable level of I/O performance to applications. Tuning I/O workloads for such a system is nontrivial, and the results generally are not portable to other HPC systems. I/O profiling tools can help to address this challenge, but most existing tools only instrument specific components within the I/O subsystem that provide a limited perspective on I/O performance. The increasing diversity of scientific applications and computing platforms calls for greater flexibility and scope in I/O characterization. In this work, we consider how the I/O profiling tool Darshan can be improved to allow for more flexible, comprehensive instrumentation of current and future HPC I/O workloads. We evaluate the performance and scalability of our design to ensure that it is lightweight enough for full-time deployment on production HPC systems. We also present two case studies illustrating how a more comprehensive instrumentation of application I/O workloads can enable insights into I/O behavior that were not previously possible. Our results indicate that Darshan's modular instrumentation methods can provide valuable feedback to both users and system administrators, while imposing negligible overheads on user applications. C1 [Snyder, Shane; Carns, Philip; Harms, Kevin; Ross, Robert] Argonne Natl Lab, Argonne, IL 60439 USA. [Lockwood, Glenn K.; Wright, Nicholas J.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RP Snyder, S (reprint author), Argonne Natl Lab, Argonne, IL 60439 USA. EM ssnyder@mcs.anl.gov; carns@mcs.anl.gov; harms@alcf.anl.gov; rross@mcs.anl.gov; glock@lbl.gov; njwright@lbl.gov 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 BN 978-1-5090-3918-0 PY 2016 BP 9 EP 17 PG 9 WC Computer Science, Theory & Methods SC Computer Science GA BG7JL UT WOS:000391372200002 ER PT J AU Lam, MO Rountree, BL AF Lam, Michael O. Rountree, Barry L. GP IEEE TI Floating-Point Shadow Value Analysis SO PROCEEDINGS OF ESPT 2016: 5TH WORKSHOP ON EXTREME-SCALE PROGRAMMING TOOLS LA English DT Proceedings Paper CT 5th Workshop on Extreme-Scale Programming Tools (ESPT) CY NOV 13-18, 2016 CL Salt Lake City, UT SP IEEE Comp Soc, ACM, Sighpc AB Real-valued arithmetic has a fundamental impact on the performance and accuracy of scientific computation. As scientific application developers prepare their applications for exascale computing, many are investigating the possibility of using either lower precision (for better performance) or higher precision (for more accuracy). However, exploring alternative representations often requires significant code revision. We present a novel program analysis technique that emulates execution with alternative real number implementations at the binary level. We also present a Pin-based implementation of this technique that supports x86_64 programs and a variety of alternative representations. C1 [Lam, Michael O.] James Madison Univ, Dept Comp Sci, Harrisonburg, VA 22807 USA. [Rountree, Barry L.] Lawrence Livermore Natl Lab, Ctr Appl Sci Comp, Livermore, CA 94550 USA. RP Lam, MO (reprint author), James Madison Univ, Dept Comp Sci, Harrisonburg, VA 22807 USA. EM lam2mo@jmu.edu; rountree4@llnl.gov 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 978-1-5090-3918-0 PY 2016 BP 18 EP 25 PG 8 WC Computer Science, Theory & Methods SC Computer Science GA BG7JL UT WOS:000391372200003 ER PT J AU Wood, C Sane, S Ellsworth, D Gimenez, A Huck, K Gamblin, T Malony, A AF Wood, Chad Sane, Sudhanshu Ellsworth, Daniel Gimenez, Alfredo Huck, Kevin Gamblin, Todd Malony, Allen GP IEEE TI A Scalable Observation System for Introspection and In Situ Analytics SO PROCEEDINGS OF ESPT 2016: 5TH WORKSHOP ON EXTREME-SCALE PROGRAMMING TOOLS LA English DT Proceedings Paper CT 5th Workshop on Extreme-Scale Programming Tools (ESPT) CY NOV 13-18, 2016 CL Salt Lake City, UT SP IEEE Comp Soc, ACM, Sighpc DE hpc; exascale; in situ; performance; monitoring; introspection; monalytics; scientific workflow; sos; sosflow AB SOS is a new model for the online in situ characterization and analysis of complex high-performance computing applications. SOS employs a data framework with distributed information management and structured query and access capabilities. The primary design objectives of SOS are flexibility, scalability, and programmability. SOS provides a complete framework that can be configured with and used directly by an application, allowing for a detailed workflow analysis of scientific applications. This paper describes the model of SOS and the experiments used to validate and explore the performance characteristics of its implementation in SOSflow. Experimental results demonstrate that SOS is capable of observation, introspection, feedback and control of complex high-performance applications, and that it has desirable scaling properties. C1 [Wood, Chad; Sane, Sudhanshu; Ellsworth, Daniel; Huck, Kevin; Malony, Allen] Univ Oregon, Dept Comp & Informat Sci, Eugene, OR 97403 USA. [Gimenez, Alfredo; Gamblin, Todd] Lawrence Livermore Natl Lab, Livermore, CA USA. RP Wood, C (reprint author), Univ Oregon, Dept Comp & Informat Sci, Eugene, OR 97403 USA. EM cdw@cs.uoregon.edu; ssane@cs.uoregon.edu; dellswor@cs.uoregon.edu; gimenez1@llnl.gov; khuck@cs.uoregon.edu; gamblin2@llnl.gov; malony@cs.uoregon.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 978-1-5090-3918-0 PY 2016 BP 42 EP 49 PG 8 WC Computer Science, Theory & Methods SC Computer Science GA BG7JL UT WOS:000391372200006 ER PT J AU Coulter, E Fischer, J Hallock, B Knepper, R Lifka, D Navarro, JP Pierce, M Stewart, C AF Coulter, Eric Fischer, Jeremy Hallock, Barbara Knepper, Richard Lifka, Dave Navarro, J. P. Pierce, Marlon Stewart, Craig GP ACM TI Cyberinfrastructure as a Platform to Facilitate Effective Collaboration between Institutions and Support Collaboratories SO PROCEEDINGS OF THE 2016 ACM SIGUCCS ANNUAL CONFERENCE (SIGUCCS'16) LA English DT Proceedings Paper CT 44th SIGUCCS Annual Conference CY NOV 06-09, 2016 CL Denver, CO SP Assoc Comp Machinery, ACM SIGUCCS DE XCI; XSEDE; Collaboratories; ACI-REF; Open Science Grid; Computation Institute; Globus; Cluster Computing; Collaboration; Big Data; Jetstream; Science Gateways ID SCIENCE; GATEWAYS AB Researchers, scientists, engineers, granting agencies, and increasingly complex research problems have given rise to the scientific "collaboratory"-large organizations that span many institutions, with individual members working together to explore a particular phenomenon. These organizations require computational resources in order to support analyses and to provide platforms where the collaborators can interact. The XSEDE Community Infrastructure (XCI) group assists campuses in using their own resources and promotes the sharing of those resources in order to create collaboratories improving use of the nation's collective cyberinfrastructure. Currently XCI provides toolkits and training, and collaborates with organizations such as ACI-REF, XSEDE Campus Champions, and the Open Science Grid to identify tools and best practices that support the community. This paper discusses the progress in and barriers to developing a robust collaborative environment where computational resources can be shared. C1 [Coulter, Eric; Fischer, Jeremy; Hallock, Barbara; Knepper, Richard; Stewart, Craig] Indiana Univ, Pervas Technol Inst, 2709 E 10th St, Bloomington, IN 47408 USA. [Lifka, Dave] Cornell Univ, 512 Frank HT Rhodes Hall, Ithaca, NY 14853 USA. [Navarro, J. P.] Argonne Natl Lab, Math & Comp Sci Div, TCS Bldg 240, Argonne, IL 60439 USA. [Pierce, Marlon] IUPTI, Sci Gateways Res Ctr, 2709 E 10th St, Bloomington, IN 47408 USA. RP Coulter, E (reprint author), Indiana Univ, Pervas Technol Inst, 2709 E 10th St, Bloomington, IN 47408 USA. EM jecoulte@iu.edu; jeremy@iu.edu; bahalloc@iu.edu; rknepper@iu.edu; lifka@cornell.edu; navarro@mcs.anl.gov; marpierc@iu.edu; stewart@iu.edu NR 17 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 978-1-4503-4095-3 PY 2016 BP 37 EP 42 DI 10.1145/2974927.2974962 PG 6 WC Computer Science, Interdisciplinary Applications; Education & Educational Research SC Computer Science; Education & Educational Research GA BG7GR UT WOS:000391256400008 ER PT J AU Mao, HN Thakur, G Bhaduri, B AF Mao, Huina Thakur, Gautam Bhaduri, Budhendra GP ACM TI Exploiting mobile phone data for multi-category land use classification in Africa SO PROCEEDINGS OF THE 2ND ACM SIGSPATIAL WORKSHOP ON SMART CITIES AND URBAN ANALYTICS (URBANGIS'16 LA English DT Proceedings Paper CT 2nd ACM SIGSPATIAL Workshop on Smart Cities and Urban Analytics (UrbanGIS) CY OCT 31, 2016 CL San Francisco, CA SP ACM SIGSPATIAL DE Multi-category land use classification; Big Data; Mobile phone data; Smart cities ID NONNEGATIVE MATRIX FACTORIZATION AB In the context of Smart Africa Initiative, we present a method to infer multiple land use in Africa. Such information is usually scarce in developing countries due to the constrained resources. Timely land use information is a critical input to smart urban planning that improves efficiency for the public to access to resources. The mobile phone usage is almost universal, which creates a valuable data source for land use inference. In this paper, we demonstrate that the temporal mobile phone call pattern and call network features can be combined to infer ten-category land use including residential, commercial-industrial/office, commercial-business/retail/leisure, high- and low- density commercial, high- and low- density residential, mixed land use areas as well as commercial and residential hubs of the city. In low income countries where land use surveys are rare, our approach create an alternative for measuring land use. C1 [Mao, Huina; Thakur, Gautam; Bhaduri, Budhendra] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP Mao, HN (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. EM maoh@ornl.gov; thakurg@ornl.gov; bhaduribl@ornl.gov RI Thakur, Gautam/S-8694-2016 OI Thakur, Gautam/0000-0002-8341-4596 NR 13 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 978-1-4503-4583-5 PY 2016 DI 10.1145/3007540.3007549 PG 6 WC Computer Science, Interdisciplinary Applications; Urban Studies SC Computer Science; Urban Studies GA BG7NK UT WOS:000391514000009 ER PT J AU Yuan, JY Cheriyadat, AM AF Yuan, Jiangye Cheriyadat, Anil M. GP ACM TI Combining Maps and Street Level Images for Building Height and Facade Estimation SO PROCEEDINGS OF THE 2ND ACM SIGSPATIAL WORKSHOP ON SMART CITIES AND URBAN ANALYTICS (URBANGIS'16 LA English DT Proceedings Paper CT 2nd ACM SIGSPATIAL Workshop on Smart Cities and Urban Analytics (UrbanGIS) CY OCT 31, 2016 CL San Francisco, CA SP ACM SIGSPATIAL DE data fusion; GIS map; building model AB We propose a method that integrates two widely available data sources, building footprints from 2D maps and street level images, to derive valuable information that is generally difficult to acquire - building heights and building facade masks in images. Building footprints are elevated in world coordinates and projected onto images. Building heights are estimated by scoring projected footprints based on their alignment with building features in images. Building footprints with estimated heights can be converted to simple 3D building models, which are projected back to images to identify buildings. In this procedure, accurate camera projections are critical. However, camera position errors inherited from external sensors commonly exist, which adversely affect results. We derive a solution to precisely locate cameras on maps using correspondence between image features and building footprints. Experiments on real-world datasets show the promise of our method. C1 [Yuan, Jiangye; Cheriyadat, Anil M.] Oak Ridge Natl Lab, Computat Sci & Engn Div, Oak Ridge, TN 37831 USA. RP Yuan, JY (reprint author), Oak Ridge Natl Lab, Computat Sci & Engn Div, Oak Ridge, TN 37831 USA. EM yuanj@ornl.gov; cheriyadatam@ornl.gov NR 22 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 978-1-4503-4583-5 PY 2016 DI 10.1145/3007540.3007548 PG 8 WC Computer Science, Interdisciplinary Applications; Urban Studies SC Computer Science; Urban Studies GA BG7NK UT WOS:000391514000008 ER PT J AU Aleksandrov, L Chapuis, G Djidjev, H AF Aleksandrov, Lyudmil Chapuis, Guillaume Djidjev, Hristo GP ACM TI Parallel Shortest-Path Queries in Planar Graphs SO PROCEEDINGS OF THE ACM WORKSHOP ON HIGH PERFORMANCE GRAPH PROCESSING (HPGP'16) LA English DT Proceedings Paper CT ACM Workshop on High Performance Graph Processing (HPGP) CY MAY 31, 2016 CL Kyoto, JAPAN SP Assoc Comp Machinery, ACM SIGARCH, Univ Arizona DE shortest path problems; graph algorithms; distance queries; distributed computing; graph partitioning ID SMALL TREEWIDTH; ALGORITHMS; DIGRAPHS AB We develop several parallel algorithms for shortest distance queries in planar graphs that use graph partitioning in the preprocessing phase to precompute and store distances between selected pairs of vertices. In the query phase, given a pair of arbitrary vertices v and w, the stored information is used to find the distance between v and w fast. The algorithms are implemented and tested on a high performance cluster with upto 256 16-core CPUs and their performances are analyzed and compared. C1 [Aleksandrov, Lyudmil] Bulgarian Acad Sci, IICT, G Bonchev Str 25-A, Sofia 1113, Bulgaria. [Chapuis, Guillaume; Djidjev, Hristo] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Aleksandrov, L (reprint author), Bulgarian Acad Sci, IICT, G Bonchev Str 25-A, Sofia 1113, Bulgaria. EM lyualeks@bas.bg; gchapuis@lanl.gov; djidjev@lanl.gov NR 17 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 978-1-4503-4350-3 PY 2016 BP 9 EP 16 DI 10.1145/2915516.2915518 PG 8 WC Computer Science, Interdisciplinary Applications; Computer Science, Theory & Methods SC Computer Science GA BG7NM UT WOS:000391515700002 ER PT S AU Islam, NT Cahall, C Aragoneses, A Lim, CCW Allman, MS Verma, V Nam, SW Kim, J Gauthier, DJ AF Islam, Nurul T. Cahall, Clinton Aragoneses, Andres Lim, Charles Ci Wen Allman, Michael S. Verma, Varun Nam, Sae Woo Kim, Jungsang Gauthier, Daniel J. BE Gruneisen, MT Dusek, M Rarity, JG TI Enhancing the secure key rate in a quantum-key-distribution system using discrete-variable, high-dimensional, time-frequency states SO QUANTUM INFORMATION SCIENCE AND TECHNOLOGY II SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Quantum Information Science and Technology II CY SEP 26-27, 2016 CL Edinburgh, SCOTLAND SP SPIE DE quantum key distribution; high-dimensional quantum states; time-delay interferometers AB High-dimensional (dimension d > 2) quantum key distribution (QKD) protocols that encode information in the temporal degree of freedom promise to overcome some of the challenges of qubit-based (d = 2) QKD systems. In particular, the long recovery time of single -photon detectors and large channel noise at long distance both limit the rate at which a final secure key can be generated in a low-dimension QKD system. We propose and demonstrate a practical discrete-variable time-frequency protocol with d = 4 at a wavelength of 1550 nm, where the temporal states are secured by transmitting and detecting their dual states under Fourier transformation, known as the frequency -basis states, augmented by a decoy-state protocol. We show that the discrete temporal and frequency states can be generated and detected using commercially-available equipment with high timing and spectral efficiency. In our initial experiments, we only have access to detectors that have low efficiency (1%) at 1550 nm. Together with other component losses, our system is equivalent to a QKD system with ideal components and a50-km-long optical-fiber quantum channel. We find that our system maintains a spectral visibility of over 99.0% with a quantum bit error rate of 2.3%, which is largely due to the finite extinction ratio of the intensity modulators used in the transmitter. The estimated secure key rate of this system is 7.7 x 10(4) KHz, which should improve drastically when we use detectors optimized for 1550 nm. C1 [Islam, Nurul T.; Aragoneses, Andres] Duke Univ, Dept Phys, Durham, NC 27708 USA. [Islam, Nurul T.; Cahall, Clinton; Aragoneses, Andres; Kim, Jungsang] Duke Univ, Fitzpatrick Inst Photon, Durham, NC 27708 USA. [Cahall, Clinton; Kim, Jungsang] Duke Univ, Dept Elect & Comp Engn, Durham, NC 27708 USA. [Lim, Charles Ci Wen] Oak Ridge Natl Lab, Computat Sci & Engn Div, Quantum Informat Sci Grp, Oak Ridge, TN 37831 USA. [Allman, Michael S.; Verma, Varun; Nam, Sae Woo] NIST, 325 Broadway, Boulder, CO 80305 USA. [Gauthier, Daniel J.] Ohio State Univ, Dept Phys, 191 West Woodruff Ave, Columbus, OH 43210 USA. RP Islam, NT (reprint author), Duke Univ, Dept Phys, Durham, NC 27708 USA.; Islam, NT (reprint author), Duke Univ, Fitzpatrick Inst Photon, Durham, NC 27708 USA. EM nti3@duke.edu OI Lim, Charles Ci Wen/0000-0002-2332-4126 NR 19 TC 0 Z9 0 U1 0 U2 0 PU SPIE-INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA SN 0277-786X BN 978-1-5106-0396-7; 978-1-5106-0397-4 J9 PROC SPIE PY 2016 VL 9996 AR UNSP 99960C DI 10.1117/12.2241429 PG 8 WC Engineering, Electrical & Electronic; Optics SC Engineering; Optics GA BG7IY UT WOS:000391354000005 ER PT J AU Rose, H Ophus, C AF Rose, H. Ophus, C. BE Mika, F TI EFFICIENT LINEAR PHASE CONTRAST AND OPTICAL SECTIONING IN THE ABERRATION-CORRECTED SCANNING TRANSMISSION ELECTRON MICROSCOPE SO RECENT TRENDS IN CHARGED PARTICLE OPTICS AND SURFACE PHYSICS INSTRUMENTATION LA English DT Proceedings Paper CT 15th International Seminar on Recent Trends in Charged Particle Optics and Surface Physics Instrumentation CY MAY 29-JUN 03, 2016 CL Brno, CZECH REPUBLIC SP Czech Acad Sci, Inst Sci Instruments C1 [Rose, H.] Univ Ulm, Albert Einstein Allee 11, D-89069 Ulm, Germany. [Rose, H.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RP Rose, H (reprint author), Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. NR 3 TC 0 Z9 0 U1 0 U2 0 PU ACAD SCIENCES, CZECH REPUBLIC, INST SCIENTIFIC INSTRUMENTS ASCR, V V I PI BRNO PA KRALOVOPOLSKA 147, BRNO, 612 64, CZECH REPUBLIC BN 978-80-87441-17-6 PY 2016 BP 62 EP 63 PG 2 WC Instruments & Instrumentation; Microscopy; Optics SC Instruments & Instrumentation; Microscopy; Optics GA BG7FW UT WOS:000391254000028 ER PT J AU Modarres, HP Mofrad, MR Sanati-Nezhad, A AF Modarres, H. Pezeshgi Mofrad, M. R. Sanati-Nezhad, A. TI Protein thermostability engineering SO RSC ADVANCES LA English DT Review ID MOLECULAR-DYNAMICS SIMULATION; SIDE-CHAIN INTERACTIONS; ARCHAEON ARCHAEOGLOBUS-FULGIDUS; BACILLUS-CIRCULANS XYLANASE; CONSTRAINT NETWORK ANALYSIS; CHARGE-CHARGE INTERACTIONS; COLONY-STIMULATING FACTOR; FOLDING TRANSITION-STATE; SUPPORT VECTOR MACHINES; GUIDED CONSENSUS METHOD AB The use of enzymes for industrial and biomedical applications is limited to their function at elevated temperatures. The principles of thermostability engineering need to be implemented for proteins with low thermal stability to broaden their applications. Therefore, understanding the thermal stability modulating factors of proteins is necessary for engineering their thermostability. In this review, first different thermostability enhancing strategies in both the sequence and structure levels, discovered by studying the natural proteins adapted to different conditions, are introduced. Next, the progress in the development of various computational methods to engineer thermostability of proteins by learning from nature and introducing several popular tools and algorithms for protein thermostability engineering is highlighted. Further discussion includes the challenges in the field of protein thermostability engineering such as the protein stability- activity trade- off. Finally, how thermostability engineering could be instrumental for the design of protein drugs for biomedical applications is demonstrated. C1 [Modarres, H. Pezeshgi; Mofrad, M. R.] Univ Calif Berkeley, Mol Cell Biomech Lab, Dept Bioengn, 208A Stanley Hall, Berkeley, CA 94720 USA. [Modarres, H. Pezeshgi; Mofrad, M. R.] Univ Calif Berkeley, Mol Cell Biomech Lab, Dept Mech Engn, 208A Stanley Hall, Berkeley, CA 94720 USA. [Mofrad, M. R.] Lawrence Berkeley Natl Lab, Phys Biosci Div, Berkeley, CA 94720 USA. [Modarres, H. Pezeshgi; Sanati-Nezhad, A.] Univ Calgary, Dept Mech & Mfg Engn, BioMEMS & Bioinspired Microfluid Lab, 2500 Univ Dr NW, Calgary, AB T2N 1N4, Canada. [Sanati-Nezhad, A.] Univ Calgary, Ctr BioEngn Res & Educ, 2500 Univ Dr NW, Calgary, AB T2N 1N4, Canada. RP Sanati-Nezhad, A (reprint author), Univ Calgary, Dept Mech & Mfg Engn, BioMEMS & Bioinspired Microfluid Lab, 2500 Univ Dr NW, Calgary, AB T2N 1N4, Canada.; Sanati-Nezhad, A (reprint author), Univ Calgary, Ctr BioEngn Res & Educ, 2500 Univ Dr NW, Calgary, AB T2N 1N4, Canada. EM amir.sanatinezhad@ucalgary.ca FU Natural Sciences and Engineering Research Council of Canada (NSERC); Alberta Innovates Bio Solutions FX The authors acknowledge the Natural Sciences and Engineering Research Council of Canada (NSERC) and the Alberta Innovates Bio Solutions for their support to this research. NR 356 TC 0 Z9 0 U1 12 U2 12 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 2016 VL 6 IS 116 BP 115252 EP 115270 DI 10.1039/c6ra16992a PG 19 WC Chemistry, Multidisciplinary SC Chemistry GA EH0EX UT WOS:000391436800030 ER PT J AU Romanchuk, AY Kalmykov, SN Kersting, AB Zavarin, M AF Romanchuk, Anna Yu. Kalmykov, Stepan N. Kersting, Annie B. Zavarin, Mavrik TI Behaviour of plutonium in the environment SO RUSSIAN CHEMICAL REVIEWS LA English DT Review ID RADIOACTIVE-WASTE DISPOSAL; IRISH-SEA; KARA SEA; SEQUENTIAL EXTRACTION; HUMIC SUBSTANCES; OXIDATION-STATES; PU(IV) SORPTION; NUCLEAR-WASTE; TEST-SITE; SPECIATION AB Plutonium is one of the most toxic components of spent nuclear fuel and of nuclear wastes, which is characterized by very complex chemical behaviour both in engineering processes and under environmental conditions. As a result of the human activities, plutonium is released to the environment and its speciation depends, to a large extent, on the source and release scenario and also on the geochemical conditions. The most recent data about various sources of plutonium in the environment and its speciation are reviewed. The recent trends in the description of one of the most important processes in plutonium migration, i.e., its sorption onto components of soils, rocks, colloidal particles of various origin, natural organic matter, etc., are discussed. C1 [Romanchuk, Anna Yu.; Kalmykov, Stepan N.] Lomonosov Moscow State Univ, Dept Chem, Leninskie Gory 1,Str 3, Moscow 119991, Russia. [Kalmykov, Stepan N.] Natl Res Ctr, Kurchatov Inst, Pl Akademika Kurchatova 1, Moscow 123182, Russia. [Kalmykov, Stepan N.] Russian Acad Sci, Vernadsky Inst Geochem & Analyt Chem, Ul Kosygina 19, Moscow 119991, Russia. [Kersting, Annie B.] Lawrence Livermore Natl Lab, Univ Relat & Sci Educ, POB 808, Livermore, CA 94550 USA. [Zavarin, Mavrik] Lawrence Livermore Natl Lab, Glenn T Seaborg Inst, POB 808, Livermore, CA 94550 USA. RP Romanchuk, AY (reprint author), Lomonosov Moscow State Univ, Dept Chem, Leninskie Gory 1,Str 3, Moscow 119991, Russia. EM romanchuk.anna@gmail.com; stepan@radio.chem.msu.ru; kersting1@llnl.gov; zavarin1@llnl.gov FU Russian Foundation for Basic Research [14-03-92703, 14-03-00821, 16-33-60043 mol_a_dk]; RF President Scholarship [AYuR-SP-3798.2015.2]; Subsurface Biogeochemical Research Program of the U.S. Department of Energy's Office of Biological and Environmental Research; LLNL [DE-AC52-07NA27344] FX This review was finamcially supported by the Russian Foundation for Basic Research (Project Nos 14-03-92703, 14-03-00821 and 16-33-60043 mol_a_dk) and the RF President Scholarship (AYuR-SP-3798.2015.2). The contributions of A. Kersting and M. Zavarin were supported by the Subsurface Biogeochemical Research Program of the U.S. Department of Energy's Office of Biological and Environmental Research and prepared by LLNL under Contract DE-AC52-07NA27344. NR 96 TC 0 Z9 0 U1 5 U2 5 PU TURPION LTD PI BRISTOL PA C/O TURPION LTD, IOP PUBLISHING, TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6HG, ENGLAND SN 0036-021X EI 1468-4837 J9 RUSS CHEM REV+ JI Russ. Chem. Rev. PY 2016 VL 85 IS 9 BP 995 EP 1010 DI 10.1070/RCR4602 PG 16 WC Chemistry, Multidisciplinary SC Chemistry GA EG8JC UT WOS:000391301900006 ER PT S AU Bachmann, B Chow, R Palmer, NE Hoover, M Huffman, E Lee, JJ Romano, E Kumar, C Hulbert, RD Albert, F Dewald, EL Divol, L Hohenberger, M Landen, L Warrick, A Doppner, T AF Bachmann, B. Chow, R. Palmer, N. E. Hoover, M. Huffman, E. Lee, J. J. Romano, E. Kumar, C. Hulbert, R. D. Albert, F. Dewald, E. L. Divol, L. Hohenberger, M. Landen, L. Warrick, A. Doppner, T. BE Koch, JA Grim, GP TI Improved hard x-ray (50-80 keV) imaging of hohlraum implosion experiments at the National Ignition Facility SO TARGET DIAGNOSTICS PHYSICS AND ENGINEERING FOR INERTIAL CONFINEMENT FUSION V SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Target Diagnostics Physics and Engineering for Inertial Confinement Fusion V CY SEP 01, 2016 CL San Diego, CA SP SPIE DE hard x-ray imaging; hot electrons; laser plasma interaction; inertial confinement fusion; indirect drive; capsule implosions AB We recently designed, built and commissioned a new pinhole / filter assembly for the equatorial hard x-ray imager (eHXI) at the National Ignition Facility (NIF). In this paper we describe the design and metrology of the new diagnostic as well as the spectral and spatial response of the hard x-ray detector. The new eHXI assembly has improved the photon collection efficiency along with spectral and spatial resolution by making use of 1D imaging channels and various hard x-ray filters. In addition we added a Ross pair filter set for Au K-alpha emission (67-69 keV). The new eHXI design will improve our understanding of the sourcing of hot electrons, generated in laser-plasma-instabilities, along the vertical hohlraum axis. This information is an important input for simulating and eventually limiting the DT fuel preheat in ICF implosions. C1 [Bachmann, B.; Chow, R.; Palmer, N. E.; Hoover, M.; Kumar, C.; Hulbert, R. D.; Albert, F.; Dewald, E. L.; Divol, L.; Hohenberger, M.; Landen, L.; Warrick, A.; Doppner, T.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Huffman, E.; Lee, J. J.; Romano, E.] Natl Secur Technol LLC, Livermore, CA 94550 USA. RP Bachmann, B (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. EM bachmann2@llnl.gov NR 20 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 978-1-5106-0323-3; 978-1-5106-0324-0 J9 PROC SPIE PY 2016 VL 9966 AR UNSP 996605 DI 10.1117/12.2238452 PG 14 WC Optics; Physics, Applied SC Optics; Physics GA BG7ME UT WOS:000391439400003 ER PT S AU Carpenter, AC Dayton, M Kimbrough, J Datte, P Macaraeg, C Funsten, B Gardner, P Kittle, D Charron, K Bell, P Celeste, J Sanchez, M Mitchell, B Claus, L Robertson, G Porter, J Sims, G Hilsabeck, T AF Carpenter, A. C. Dayton, M. Kimbrough, J. Datte, P. Macaraeg, C. Funsten, B. Gardner, P. Kittle, D. Charron, K. Bell, P. Celeste, J. Sanchez, M. Mitchell, B. Claus, L. Robertson, G. Porter, J. Sims, G. Hilsabeck, T. BE Koch, JA Grim, GP TI Single Line of Sight CMOS Radiation Tolerant Camera System Design Overview SO TARGET DIAGNOSTICS PHYSICS AND ENGINEERING FOR INERTIAL CONFINEMENT FUSION V SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Target Diagnostics Physics and Engineering for Inertial Confinement Fusion V CY SEP 01, 2016 CL San Diego, CA SP SPIE DE NIF; UXI; SLOS; hCMOS; Radiation Hardened; Camera AB This paper covers the preliminary design of a radiation tolerant nanosecond-gated multi-frame CMOS camera system for use in the NIF. Electrical component performance data from 14 MeV neutron and cobalt 60 radiation testing will be discussed. The recent development of nanosecond-gated multi-frame hybrid-CMOS (hCMOS) focal plane arrays by the Ultrafast X-ray Imaging (UXI) group at Sandia National Lab has generated a need for custom camera electronics to operate in the pulsed radiation environment of the NIF target chamber. Design requirements and performance data for the prototype camera system will be discussed. The design and testing approach for the radiation tolerant camera system will be covered along with the evaluation of commercial off the shelf (COTS) electronic component such as FPGAs, voltage regulators, ADCs, DACs, optical transceivers, and other electronic components. Performance changes from radiation exposure on select components will be discussed. Integration considerations for x-ray imaging diagnostics on the NIF will also be covered. C1 [Carpenter, A. C.; Dayton, M.; Kimbrough, J.; Datte, P.; Macaraeg, C.; Funsten, B.; Gardner, P.; Kittle, D.; Charron, K.; Bell, P.; Celeste, J.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Sanchez, M.; Mitchell, B.; Claus, L.; Robertson, G.; Porter, J.] Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. [Sims, G.] Spectral Instruments, Tucson, AZ USA. [Hilsabeck, T.] Gen Atom, San Diego, CA USA. RP Carpenter, AC (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. NR 11 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 978-1-5106-0323-3; 978-1-5106-0324-0 J9 PROC SPIE PY 2016 VL 9966 AR UNSP 99660H DI 10.1117/12.2237876 PG 11 WC Optics; Physics, Applied SC Optics; Physics GA BG7ME UT WOS:000391439400012 ER PT S AU Carpenter, AC Herrmann, HW Beeman, BV Lopez, FE Hernandez, JE AF Carpenter, A. C. Herrmann, H. W. Beeman, B. V. Lopez, F. E. Hernandez, J. E. BE Koch, JA Grim, GP TI Performance of a Mach-Zehnder based analogue data recording system for use with the Gas Cherenkov Detector on the NIF SO TARGET DIAGNOSTICS PHYSICS AND ENGINEERING FOR INERTIAL CONFINEMENT FUSION V SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Target Diagnostics Physics and Engineering for Inertial Confinement Fusion V CY SEP 01, 2016 CL San Diego, CA SP SPIE DE Mach-Zehnder optical modulator; NIF; GCD AB This paper covers the performance of a high speed analogue data transmission system. This system uses multiple Mach-Zehnder optical modulators to transmit and record fusion burn history data for the Gas Cherenkov Detector (GCD) on the National Ignition Facility. The GCD is designed to measure the burn duration of high energy gamma rays generated by Deuterium-Tritium (DT) interactions in the NIF. The burn duration of DT fusion can be as short as 10ps and the optical photons generated in the gas Cherenkov cell are measured using a vacuum photodiode with a FWHM of similar to 55ps. A recording system with a 3dB bandwidth of >= 10GHz and a signal to noise ratio of >= 5 for photodiode output voltage of 50mV is presented. The data transmission system uses two or three Mach-Zehnder modulators and an RF amplifier to transmit data optically. This signal is received and recorded by optical to electrical converts and a high speed digital oscilloscope placed outside of the NIF Target Bay. Electrical performance metrics covered include signal to noise ratio (SNR), signal to peak to peak noise ratio, single shot dynamic range, shot to shot dynamic range, system bandwidth, scattering parameters, are shown. Design considerations such as self-test capabilities, the NIF radiation environment, upgrade compatibility, Mach-Zehnder (MZ) biasing, maintainability, and operating considerations for the use of MZs are covered. This data recording system will be used for the future upgrade of the GCD to be used with a Pulse Dilation PMT, currently under development. C1 [Carpenter, A. C.; Beeman, B. V.; Hernandez, J. E.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Herrmann, H. W.; Lopez, F. E.] Los Alamos Natl Lab, Los Alamos, NM USA. RP Carpenter, AC (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. NR 8 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 978-1-5106-0323-3; 978-1-5106-0324-0 J9 PROC SPIE PY 2016 VL 9966 AR UNSP 996609 DI 10.1117/12.2237853 PG 12 WC Optics; Physics, Applied SC Optics; Physics GA BG7ME UT WOS:000391439400007 ER PT S AU Claus, L Robertson, G Fang, L Kay, R Kimmel, MW Sanchez, M Stahoviak, JW Trotter, D Porter, JL AF Claus, L. Robertson, G. Fang, L. Kay, R. Kimmel, M. W. Sanchez, M. Stahoviak, J. W. Trotter, D. Porter, J. L. BE Koch, JA Grim, GP TI Initial characterization results of a 1024 x 448, 25 mu m, multi-frame camera with 2 ns integration time for the Ultra-Fast X-ray Imager (UXI) program at Sandia National Laboratories SO TARGET DIAGNOSTICS PHYSICS AND ENGINEERING FOR INERTIAL CONFINEMENT FUSION V SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Target Diagnostics Physics and Engineering for Inertial Confinement Fusion V CY SEP 01, 2016 CL San Diego, CA SP SPIE DE ASIC; multi-frame; pixel; ROIC; hybrid-CMOS; high-speed AB The Hippogriff camera developed at Sandia National Laboratories as part of the Ultra-Fast X-ray Imager (UXI) program is a high-speed, multi-frame, time-gated imager for use on a wide variety of High Energy Density (HED) physics experiments on both Sandia's Z-Machine and the National Ignition Facility. The camera is a 1024 x 448 pixel array with 25 mu m spatial resolution, containing 2 frames per pixel natively and has achieved 2 ns minimum integration time. It is sensitive to both optical photons as well as soft X-rays up to similar to 6 keV. The Hippogriff camera is the second generation UXI camera that contains circuitry to trade spatial resolution for additional frames of temporal coverage. The user can reduce the row-wise spatial resolution from the native 25 mu m to increase the number of frames in a data set to 4 frames at 50 mu m or 8 frames at 100 mu m spatial resolution. This feature, along with both optical and X-ray sensitivity, facilitates additional experimental flexibility. Minimum signal is 1500 e-rms and full well is 1.5 million e-. C1 [Claus, L.; Robertson, G.; Fang, L.; Kay, R.; Kimmel, M. W.; Sanchez, M.; Stahoviak, J. W.; Trotter, D.; Porter, J. L.] Sandia Natl Labs, 1515 Eubank SE, Albuquerque, NM 87123 USA. RP Claus, L (reprint author), Sandia Natl Labs, 1515 Eubank SE, Albuquerque, NM 87123 USA. EM ldclaus@sandia.gov NR 3 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 978-1-5106-0323-3; 978-1-5106-0324-0 J9 PROC SPIE PY 2016 VL 9966 AR UNSP 99660F DI 10.1117/12.2238538 PG 11 WC Optics; Physics, Applied SC Optics; Physics GA BG7ME UT WOS:000391439400011 ER PT S AU Dayton, M Carpenter, A Chen, H Palmer, N Datte, P Bell, P Sanchez, M Claus, L Robertson, G Porter, J AF Dayton, M. Carpenter, A. Chen, H. Palmer, N. Datte, P. Bell, P. Sanchez, M. Claus, L. Robertson, G. Porter, J. BE Koch, JA Grim, GP TI A Characterization Technique for Nanosecond Gated CMOS X-ray Cameras SO TARGET DIAGNOSTICS PHYSICS AND ENGINEERING FOR INERTIAL CONFINEMENT FUSION V SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Target Diagnostics Physics and Engineering for Inertial Confinement Fusion V CY SEP 01, 2016 CL San Diego, CA SP SPIE DE nanosecond gated CMOS-camera; Ultra-Fast X-ray Imager; shutter profiles; flat-fielding AB We present a characterization technique for nanosecond gated CMOS cameras designed and built by Sandia National Laboratory under their Ultra-Fast X-ray Imager program. The cameras have been used to record images during HED physics experiments at Sandia's Z Facility and at LLNL's National Ignition Facility. The behavior of the camera's fast shutters was not expected to be ideal since they propagate over a large pixel array of 25 mm x 12 mm, which could result in shutter timing skew, variations in the FWHM, and variations in the shutter's peak response. Consequently, a detailed characterization of the camera at the pixel level was critical for interpreting the images. Assuming the pixel's photo-response was linear, the shutter profiles for each pixel were simplified to a pair of sigmoid functions using standard non-linear fitting methods to make the subsequent analysis less computationally intensive. A pixel-level characterization of a "Furi" camera showed frame-to-frame gain variations that could be normalized with a gain mask and significant timing skew at the sensor's center column that could not be corrected. The shutter profiles for Furl were then convolved with data generated from computational models to forward fit images collected with the camera. C1 [Dayton, M.; Carpenter, A.; Chen, H.; Palmer, N.; Datte, P.; Bell, P.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Sanchez, M.; Claus, L.; Robertson, G.; Porter, J.] Sandia Natl Labs, Albuquerque, NM USA. RP Dayton, M (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. EM Dayton5@llnl.gov NR 8 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 978-1-5106-0323-3; 978-1-5106-0324-0 J9 PROC SPIE PY 2016 VL 9966 AR UNSP 996602 DI 10.1117/12.2237882 PG 10 WC Optics; Physics, Applied SC Optics; Physics GA BG7ME UT WOS:000391439400001 ER PT S AU Fatherley, VE Barker, DA Fittinghoff, DN Hibbard, RL Martinez, JI Merrill, FE Oertel, A Schmidt, DW Volegov, PL Wilde, CH AF Fatherley, V. E. Barker, D. A. Fittinghoff, D. N. Hibbard, R. L. Martinez, J. I. Merrill, F. E. Oertel, A. Schmidt, D. W. Volegov, P. L. Wilde, C. H. BE Koch, JA Grim, GP TI Design of the aperture array for neutron imaging from the north pole of the National Ignition Facility SO TARGET DIAGNOSTICS PHYSICS AND ENGINEERING FOR INERTIAL CONFINEMENT FUSION V SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Target Diagnostics Physics and Engineering for Inertial Confinement Fusion V CY SEP 01, 2016 CL San Diego, CA SP SPIE DE neutron; pinhole; array; aperture; NIF AB A new neutron imager, known as Neutron Imaging System North Pole, will use an array of thick apertures to image the neutrons produced in the burn region of imploding fusion capsules at the National Ignition Facility. While the resolution requirements and parameters that drive the design of this array are similar to traditional x-ray pinhole arrays, neutrons require thick apertures with narrow fields of view, and a precisely designed array of apertures is critical to allow alignment and capture the required images with 10-mu m resolution. This work describes the mechanical parameters and limitations driving the design of the aperture array, in addition metrology and alignment requirements are discussed. C1 [Fatherley, V. E.; Martinez, J. I.; Merrill, F. E.; Oertel, A.; Schmidt, D. W.; Volegov, P. L.; Wilde, C. H.] Los Alamos Natl Lab, Bikini Atoll Rd SM-30, Los Alamos, NM 87544 USA. [Barker, D. A.; Fittinghoff, D. N.; Hibbard, R. L.] Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94551 USA. RP Fatherley, VE (reprint author), Los Alamos Natl Lab, Bikini Atoll Rd SM-30, Los Alamos, NM 87544 USA. EM vef@lanl.gov NR 6 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 978-1-5106-0323-3; 978-1-5106-0324-0 J9 PROC SPIE PY 2016 VL 9966 AR UNSP 99660B DI 10.1117/12.2238657 PG 14 WC Optics; Physics, Applied SC Optics; Physics GA BG7ME UT WOS:000391439400008 ER PT S AU Frayer, DK Fratanduono, D AF Frayer, Daniel K. Fratanduono, Dayne BE Koch, JA Grim, GP TI Considerations for a PDV diagnostic capability on the National Ignition Facility SO TARGET DIAGNOSTICS PHYSICS AND ENGINEERING FOR INERTIAL CONFINEMENT FUSION V SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Target Diagnostics Physics and Engineering for Inertial Confinement Fusion V CY SEP 01, 2016 CL San Diego, CA SP SPIE DE Target diagnostics; PDV; velocimetry; optical systems ID IMPACT; DESIGN AB Photonic Doppler Velocimetry (PDV) has become widely and routinely used in many high-velocity experimental applications due to its improved ease of use, cost, experimental flexibility, data return, and robustness compared to earlier velocimetric methods. However, these earlier methods have advantages in applications with requirements beyond PDV's current capabilities. Various classes of experiments at the National Ignition Facility (NIF) that are characterized by extremely high velocity or acceleration, or diagnostic requirements for high precision in timing and/or velocity, have historically seen a VISAR (velocity interferometer system for any surface) diagnostic employed due to such advantages. VISAR, however, requires specific, and sometimes challenging, experimental features, including planar geometry and normal incidence, high-reflectivity surface treatment, and a relatively large and inflexible diagnostic footprint. Therefore, the potential for implementing a PDV diagnostic at NIF has been evaluated by researchers from National Security Technologies, LLC and Lawrence Livermore National Laboratory. We present the results of this study, weigh the relative merits of the two methodologies with consideration of experimental phenomena and requirements, and discuss possible implementations and future directions. C1 [Frayer, Daniel K.] Natl Secur Technol LLC, New Mexico Operat, Los Alamos Off, 182 East Gate Dr, Los Alamos, NM 87544 USA. [Fratanduono, Dayne] Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94550 USA. RP Frayer, DK (reprint author), Natl Secur Technol LLC, New Mexico Operat, Los Alamos Off, 182 East Gate Dr, Los Alamos, NM 87544 USA. NR 41 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 978-1-5106-0323-3; 978-1-5106-0324-0 J9 PROC SPIE PY 2016 VL 9966 AR UNSP 99660D DI 10.1117/12.2240347 PG 11 WC Optics; Physics, Applied SC Optics; Physics GA BG7ME UT WOS:000391439400009 ER PT S AU Galbraith, J Datte, P Ross, S Swadling, G Manuel, S Molander, B Hatch, B Manha, D Vitalich, M Petre, B AF Galbraith, Justin Datte, Phil Ross, Steven Swadling, George Manuel, Stacie Molander, Bill Hatch, Ben Manha, Dan Vitalich, Mike Petre, Brad BE Koch, JA Grim, GP TI Design of an Optical Thomson Scattering Diagnostic at the National Ignition Facility SO TARGET DIAGNOSTICS PHYSICS AND ENGINEERING FOR INERTIAL CONFINEMENT FUSION V SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Target Diagnostics Physics and Engineering for Inertial Confinement Fusion V CY SEP 01, 2016 CL San Diego, CA SP SPIE DE Optical Thomson Scattering; OTS; National Ignition Facility; NIF AB The National Ignition Facility (NIF) is a 192 laser beam facility designed to support the Inertial Confinement Fusion program based on laser-target interactions(1). The Optical Thomson Scattering (OTS) diagnostic has the potential to transform the community's understanding of NIF hohlraum physics by providing first principle, local, time-resolved measurements of under-dense plasma conditions(2). A deep-UV probe beam is needed to overcome the large background of self-Thomson scattering produced by the 351nm (3 omega) NIF drive beams. A two-phase approach to OTS on NIF will mitigate the risk presented by background levels. In Phase I, the diagnostic will assess background levels around a potential deep-UV probe wavelength considered for 5 omega Thomson scattering measurements to be conducted in Phase II. The Phase I design of the diagnostic includes an unobscured collection telescope, dual crossed Czerny-Turner spectrometers, and the shared use of one streak camera located inside of an airbox. The Phase II design will include a 5 omega probe laser. We will describe the engineering design and concept of operations of the Phase I NIF OTS diagnostic, with a focus on optomechanical disciplines. C1 [Galbraith, Justin; Datte, Phil; Ross, Steven; Swadling, George; Manuel, Stacie; Molander, Bill; Hatch, Ben; Manha, Dan; Vitalich, Mike; Petre, Brad] Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94550 USA. RP Galbraith, J (reprint author), Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94550 USA. NR 3 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 978-1-5106-0323-3; 978-1-5106-0324-0 J9 PROC SPIE PY 2016 VL 9966 AR UNSP 99660E DI 10.1117/12.2237906 PG 12 WC Optics; Physics, Applied SC Optics; Physics GA BG7ME UT WOS:000391439400010 ER PT S AU Klasky, SA Abbasi, H Ainsworth, M Choi, J Curry, M Kurc, T Liu, Q Lofstead, J Maltzahn, C Parashar, M Podhorszki, N Suchyta, E Wang, F Wolf, M Chang, CS Churchill, M Ethier, S AF Klasky, S. A. Abbasi, H. Ainsworth, M. Choi, J. Curry, M. Kurc, T. Liu, Q. Lofstead, J. Maltzahn, C. Parashar, M. Podhorszki, N. Suchyta, E. Wang, F. Wolf, M. Chang, C. S. Churchill, M. Ethier, S. GP IOP TI Exascale Storage Systems the SIRIUS Way SO XXVII IUPAP CONFERENCE ON COMPUTATIONAL PHYSICS (CCP2015) SE Journal of Physics Conference Series LA English DT Proceedings Paper CT 27th IUPAP Conference on Computational Physics (CCP) CY DEC 02-05, 2015 CL Guwahati, INDIA SP Int Union Pure & Appl Phys, Int Union Pure & Appl Phys Commiss 20, Amer Phys Soc, Div Computat Phys, European Phys Soc, Assoc Asia Pacific Phys Soc, Intel Software, Nvidia, Fujitsu, Netweb Technologies, Inst Math Sci, Indian Inst Technol AB As the exascale computing age emerges, data related issues are becoming critical factors that determine how and where we do computing. Popular approaches used by traditional I/O solution and storage libraries become increasingly bottlenecked due to their assumptions about data movement, re-organization, and storage. While, new technologies, such as. burst buffers., can help address some of the short-term performance issues, it is essential that we reexamine the underlying storage and I/O infrastructure to effectively support requirements and challenges at exascale and beyond. In this paper we present a new approach to the exascale Storage System and I/O (SSIO), which is based on allowing users to inject application knowledge into the system and leverage this knowledge to better manage, store, and access large data volumes so as to minimize the time to scientific insights. Central to our approach is the distinction between the data, metadata, and the knowledge contained therein, transferred from the user to the system by describing. utility. of data as it ages. C1 [Klasky, S. A.; Abbasi, H.; Ainsworth, M.; Choi, J.; Kurc, T.; Liu, Q.; Podhorszki, N.; Suchyta, E.; Wang, F.; Wolf, M.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Klasky, S. A.] Univ Tennessee, Dept Elect Engn & Comp Sci, Knoxville, TN 37996 USA. [Klasky, S. A.; Wolf, M.] Georgia Inst Technol, Sch Comp Sci, Atlanta, GA 30332 USA. [Ainsworth, M.] Brown Univ, Div Appl Math, Providence, RI 02912 USA. [Curry, M.; Lofstead, J.] Sandia Natl Labs, Albuquerque, NM 87185 USA. [Kurc, T.] SUNY Stony Brook, Dept Biomed Informat, Stony Brook, NY 11794 USA. [Maltzahn, C.] Univ Calif Santa Cruz, Dept Comp Sci, Santa Cruz, CA 95064 USA. [Parashar, M.] Rutgers State Univ, Rutgers Discovery Informat Inst, Piscataway, NJ 08854 USA. [Chang, C. S.; Churchill, M.; Ethier, S.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA. RP Klasky, SA (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA.; Klasky, SA (reprint author), Univ Tennessee, Dept Elect Engn & Comp Sci, Knoxville, TN 37996 USA.; Klasky, SA (reprint author), Georgia Inst Technol, Sch Comp Sci, Atlanta, GA 30332 USA. EM klasky@ornl.gov NR 10 TC 0 Z9 0 U1 0 U2 0 PU IOP PUBLISHING LTD PI BRISTOL PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND SN 1742-6588 J9 J PHYS CONF SER PY 2016 VL 759 AR 012095 DI 10.1088/1742-6596/759/1/012095 PG 8 WC Physics, Mathematical SC Physics GA BG7HP UT WOS:000391299600095 ER PT S AU Roy, A Jain, S Banerjee, S Bhattacharya, S Majumder, G AF Roy, Ashim Jain, Shilpi Banerjee, Sunanda Bhattacharya, Satyaki Majumder, Gobinda GP IOP TI Simulation of pi(0)-gamma Separation Study for Proposed CMS Forward Electromagnetic Calorimeter SO XXVII IUPAP CONFERENCE ON COMPUTATIONAL PHYSICS (CCP2015) SE Journal of Physics Conference Series LA English DT Proceedings Paper CT 27th IUPAP Conference on Computational Physics (CCP) CY DEC 02-05, 2015 CL Guwahati, INDIA SP Int Union Pure & Appl Phys, Int Union Pure & Appl Phys Commiss 20, Amer Phys Soc, Div Computat Phys, European Phys Soc, Assoc Asia Pacific Phys Soc, Intel Software, Nvidia, Fujitsu, Netweb Technologies, Inst Math Sci, Indian Inst Technol AB The Forward Electromagnetic Calorimeter of the CMS detector is going to be upgraded in the high luminosity running as the energy of the present Electromagnetic Calorimeter (PbWO4) will degrade in the high luminosity (luminosity 10(34)cm(-2)s(-1)) running due to extensive radiation (hadron flux 10(13)neutrons cm(-2)). Shashlik Electromagnetic Calorimeter which consists of alternate layers of 1.5 mm LYSO(Ce) crystal plates and 2.5 mm Tungsten absorbers, was a proposal for high luminosity running. One of the performance points for any electromagnetic calorimeter is the ability to separate pi(0)s from true photons, since final states with photons are a clean and one of the most important final states in proton-proton collisions at the LHC. The objective of this project is to study the possibility of pi(0) and gamma separation in the Shashlik detector using Multivariate Analysis (MVA) technique. C1 [Roy, Ashim; Bhattacharya, Satyaki] Saha Inst Nucl Phys, Kolkata, India. [Jain, Shilpi] Natl Cent Univ, Taoyuan, Taiwan. [Banerjee, Sunanda] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. [Majumder, Gobinda] Tata Inst Fundamental Res, Bombay, Maharashtra, India. RP Roy, A (reprint author), Saha Inst Nucl Phys, Kolkata, India. EM ashim.roy@saha.ac.in NR 5 TC 0 Z9 0 U1 0 U2 0 PU IOP PUBLISHING LTD PI BRISTOL PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND SN 1742-6588 J9 J PHYS CONF SER PY 2016 VL 759 AR 012074 DI 10.1088/1742-6596/759/1/012074 PG 7 WC Physics, Mathematical SC Physics GA BG7HP UT WOS:000391299600074 ER PT J AU Ampleford, DJ Loisel, GP Hansen, SB Coverdale, CA Jennings, CA Rochau, GA AF Ampleford, David J. Loisel, Guillaume P. Hansen, Stephanie B. Coverdale, Christine A. Jennings, Cluistopher A. Rochau, Gregory A. GP IEEE TI SCALING OF Ka LINE EMISSION IN Z PINCHES FROM 2-60 keV SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Ampleford, David J.; Loisel, Guillaume P.; Hansen, Stephanie B.; Coverdale, Christine A.; Jennings, Cluistopher A.; Rochau, Gregory A.] Sandia Natl Labs, Albuquerque, NM 87185 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 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600422 ER PT J AU Apruzese, JP Giuliani, JL Ouart, ND Tangri, V Harvey-Thompson, AJ Jones, B Jennings, CA AF Apruzese, J. P. Giuliani, J. L. Ouart, N. D. Tangri, V. Harvey-Thompson, A. J. Jones, B. Jennings, C. A. GP IEEE TI EFFECTS OF A Xe DOPANT ON AN Ar GAS-PUFF IMPLOSION ON Z SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Apruzese, J. P.; Giuliani, J. L.; Ouart, N. D.; Tangri, V.] Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA. [Harvey-Thompson, A. J.; Jones, B.; Jennings, C. A.] Sandia Natl Labs, Albuquerque, NM 87185 USA. [Apruzese, J. P.] NRL Engil Corp, Chantilly, VA 20151 USA. [Tangri, V.] Berkeley Res Associates Inc, Beltsville, MD 20705 USA. NR 1 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600168 ER PT J AU Awe, TJ Yu, EP YeIton, WG Peterson, KJ McBride, RD Sinars, DB Gomez, MR Jennings, CA Martin, MR Rosenthal, SE Sefkow, AB Slutz, SA Vesey, RA Yates, KC Bauer, BS Hutchinson, TM Fuelling, S AF Awe, T. J. Yu, E. P. YeIton, W. G. Peterson, K. J. McBride, R. D. Sinars, D. B. Gomez, M. R. Jennings, C. A. Martin, M. R. Rosenthal, S. E. Sefkow, A. B. Slutz, S. A. Vesey, R. A. Yates, K. C. Bauer, B. S. Hutchinson, T. M. Fuelling, S. GP IEEE TI ELECTROTHERMAL INSTABILITY EVOLUTION ON Z-PINCH RODS AND IMPLODING LINERS PULSED WITH INTENSE CURRENT SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Awe, T. J.; Yu, E. P.; YeIton, W. G.; Peterson, K. J.; McBride, R. D.; Sinars, D. B.; Gomez, M. R.; Jennings, C. A.; Martin, M. R.; Rosenthal, S. E.; Sefkow, A. B.; Slutz, S. A.; Vesey, R. A.] Sandia Natl Labs, Albuquerque, NM 87185 USA. [Yates, K. C.; Bauer, B. S.; Hutchinson, T. M.; Fuelling, S.] Univ Nevada, Reno, NV 89557 USA. NR 1 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600230 ER PT J AU Barnat, EV AF Barnat, Edward V. GP IEEE TI DEVELOPMENT AND CALIBRATION OF ELECTRON DENSITY MEASUREMENTS IN ARGON PLASMA USING LASER COLLISION-INDUCED FLUORESCENCE SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Barnat, Edward V.] Sandia Natl Labs, Albuquerque, NM 87123 USA. NR 0 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600398 ER PT J AU Bell, KS Coverdale, CA Ampleford, DJ Bailey, JE Loisel, G Harper-Slaboszewicz, V Schwarz, J Christener, E Turner, C McPherson, LA Bourdon, C Kernaghan, M Sullivan, M Kirtley, C Cuneo, ME AF Bell, K. S. Coverdale, C. A. Ampleford, D. J. Bailey, J. E. Loisel, G. Harper-Slaboszewicz, V. Schwarz, J. Christener, E. Turner, C. McPherson, L. A. Bourdon, C. Kernaghan, M. Sullivan, M. Kirtley, C. Cuneo, M. E. GP IEEE TI THE DIFFERENTIAL ABSORPTION HARD X-RAY (DAHX) SPECTROMETER AT THE Z FACILITY SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Bell, K. S.; Coverdale, C. A.; Ampleford, D. J.; Bailey, J. E.; Loisel, G.; Harper-Slaboszewicz, V.; Schwarz, J.; Christener, E.; Turner, C.; McPherson, L. A.; Bourdon, C.; Kernaghan, M.; Sullivan, M.; Kirtley, C.; Cuneo, M. E.] Sandia Natl Labs, Albuquerque, NM 87185 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 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600402 ER PT J AU Biedemiann, LB Moore, CH Moore, SG Fierro, AS Hopkins, MM Elizando-Decanini, JM AF Biedemiann, Laura B. Moore, Chris H. Moore, Stan G. Fierro, Andrew S. Hopkins, Matthew M. Elizando-Decanini, Juan M. GP IEEE TI DEVELOPMENT OF PIC-DSMC MODEL FOR LASER-TRIGGED VACUUM SWITCH SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Biedemiann, Laura B.; Moore, Chris H.; Moore, Stan G.; Fierro, Andrew S.; Hopkins, Matthew M.; Elizando-Decanini, Juan M.] Sandia Natl Labs, Albuquerque, NM 87185 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 BN 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600149 ER PT J AU Bigelow, TS Caughman, JB Diem, SJ Goulding, RH Biewer, TM Rapp, J AF Bigelow, T. S. Caughman, J. B. Diem, S. J. Goulding, R. H. Biewer, T. M. Rapp, J. CA Proto-MPEX Team GP IEEE TI ECH/EBW Heating of Proto-MPEX Plasmas SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Bigelow, T. S.; Caughman, J. B.; Diem, S. J.; Goulding, R. H.; Biewer, T. M.; Rapp, J.; Proto-MPEX Team] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. NR 1 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600368 ER PT J AU Bott-Suzuki, SC Cordaro, SW Bendixsen, LSC Atoyan, L Byvank, T Potter, W Kusse, BR Greenly, JB Hammer, DA Jennings, CA AF Bott-Suzuki, S. C. Cordaro, S. W. Bendixsen, L. S. Caballero Atoyan, Levon Byvank, Tom Potter, William Kusse, B. R. Greenly, J. B. Hammer, D. A. Jennings, C. A. GP IEEE TI AZIMUTHAL CURRENT DENSITY DISTRIBUTION RESULTING FROM A POWER FEED VACUUM GAP IN METALLIC LINER EXPERIMENTS AT 1 MA SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Bott-Suzuki, S. C.; Cordaro, S. W.; Bendixsen, L. S. Caballero] Univ Calif San Diego, La Jolla, CA 92093 USA. [Atoyan, Levon; Byvank, Tom; Potter, William; Kusse, B. R.; Greenly, J. B.; Hammer, D. A.] Cornell Univ, Ithaca, NY USA. [Jennings, C. A.] Sandia Natl Labs, Albuquerque, NM 87185 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 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600451 ER PT J AU Chapurin, O Smolyakov, A Umansky, M AF Chapurin, O. Smolyakov, A. Umansky, M. GP IEEE TI LANDAU-FLUID CLOSURES AND THEIR IMPLEMENTATION IN BOUT plus plus WITH NON-FOURIER METHODS SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Chapurin, O.; Smolyakov, A.] Univ Saskatchewan, Saskatoon, SK, Canada. [Umansky, M.] Lawrence Livermore Natl Lab, Livermore, CA 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 BN 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600297 ER PT J AU Chen, H AF Chen, Hui GP IEEE TI Progress in laser produced pair plasma jets for laboratory astrophysics on the National Ignition Facility SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Chen, Hui] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. NR 6 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600378 ER PT J AU Clem, PG Biedermann, LB Hjalmarson, HP Moore, CH Coats, RS AF Clem, Paul G. Biedermann, Laura B. Hjalmarson, Harrold P. Moore, Chris H. Coats, Rebecca S. GP IEEE TI DIELECTRIC-DIRECTED SURFACE FLASHOVER UNDER ATMOSPHERIC CONDITIONS SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Clem, Paul G.; Biedermann, Laura B.; Hjalmarson, Harrold P.; Moore, Chris H.; Coats, Rebecca S.] Sandia Natl Labs, Albuquerque, NM 87185 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 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600162 ER PT J AU Coleman, JE Burris-Mog, TJ Coleman, JE Burris-Mog, TJ Berninger, M AF Coleman, J. E. Burris-Mog, T. J. Coleman, J. E. Burris-Mog, T. J. Berninger, Mike GP IEEE TI WARM DENSE MATTER EXPERIMENTS ON DARHT SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Coleman, J. E.; Burris-Mog, T. J.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Coleman, J. E.; Burris-Mog, T. J.] Voss Sci, Albuquerque, NM 87108 USA. [Berninger, Mike] Natl Secur Technol, Los Alamos, NM 87544 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 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600346 ER PT J AU Cordaro, SW Bott-Suzuki, SC Bendixsen, LSC Atoyan, L Byvank, T Potter, W Kusse, BR Greenly, JB Jennings, CA AF Cordaro, S. W. Bott-Suzuki, S. C. Bendixsen, L. S. Caballero Atoyan, Levon Byvank, Tom Potter, William Kusse, B. R. Greenly, J. B. Jennings, C. A. GP IEEE TI High Voltage Coaxial Vacuum Gap Breakdown for Pulsed Power Liners SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Cordaro, S. W.; Bott-Suzuki, S. C.; Bendixsen, L. S. Caballero] Univ Calif San Diego, La Jolla, CA USA. [Atoyan, Levon; Byvank, Tom; Potter, William; Kusse, B. R.; Greenly, J. B.] Cornell Univ, Ithaca, NY USA. [Jennings, C. A.] Sandia Natl Labs, Albuquerque, NM 87185 USA. EM scordaro@ucsd.edu NR 1 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600174 ER PT J AU Coverdale, CA AF Coverdale, Christine A. GP IEEE TI THE PHYSICS OF MULTI-KEV EMISSIONS FROM Z-PINCHES AT THE Z ACCELERATOR SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Coverdale, Christine A.] Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 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 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600004 ER PT J AU Crockatt, M Garrett, K Hauck, C AF Crockatt, Michael Garrett, Kris Hauck, Cory GP IEEE TI AN ARBITARY ORDER, FULLY IMPLICIT, HYBRID KINETIC SOLVER FOR RADIATIVE TRANSPORT USING INTEGRAL DEFFERRED CORRECTION SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Crockatt, Michael] Michigan State Univ, E Lansing, MI 48824 USA. [Garrett, Kris] Los Alamos Natl Lab, Los Alamos, NM USA. [Hauck, Cory] Oak Ridge Natl Lab, Oak Ridge, TN USA. NR 1 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600111 ER PT J AU Dasgupta, A Giuliani, J Ouart, N Clark, RW Apruzese, JP Ampleford, DJ Hansen, SB AF Dasgupta, A. Giuliani, J. Ouart, N. Clark, R. W. Apruzese, J. P. Ampleford, D. J. Hansen, S. B. GP IEEE TI 1-D NON-LTE K-AND L-SHELL SPECTROSCOPIC SIMULATION OF KR GAS PUFF ON Z SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Dasgupta, A.; Giuliani, J.; Ouart, N.] Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA. [Clark, R. W.] Berkeley Res Associates Inc, Beltsville, MD 20705 USA. [Apruzese, J. P.] NRL Engility Corp, Chantilly, VA 20151 USA. [Ampleford, D. J.; Hansen, S. B.] Sandia Natl Labs, Albuquerque, NM 87185 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 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600269 ER PT J AU Degnan, JH Grabowski, C Domonkos, M Ruden, EL Amdahl, DJ Frese, MH Frese, SD Wurden, GA Weber, TE AF Degnan, J. H. Grabowski, C. Domonkos, M. Ruden, E. L. Amdahl, D. J. Frese, M. H. Frese, S. D. Wurden, G. A. Weber, T. E. GP IEEE TI RESULTS FROM COMPRESSION OF FIELD REVERSED CONFIGURATION USING IMPLODING SOLID LINER SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Degnan, J. H.; Grabowski, C.; Domonkos, M.; Ruden, E. L.; Amdahl, D. J.] Air Force Res Lab, Directed Energy Directorate, Kirtland AFB, NM 87117 USA. [Frese, M. H.; Frese, S. D.] NumerEx LLC, Albuquerque, NM USA. [Wurden, G. A.; Weber, T. E.] Los Alamos Natl Lab, Los Alamos, NM 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 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600386 ER PT J AU Fierro, A Moore, C Yee, B Hopkins, M Scheiner, B AF Fierro, Andrew Moore, Chris Yee, Ben Hopkins, Matt Scheiner, Brett GP IEEE TI INCORPORATING RADIATION TRANSPORT INTO PARTICLE-BASED PLASMA SIMULATIONS SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Fierro, Andrew; Moore, Chris; Yee, Ben; Hopkins, Matt] Sandia Natl Labs, Albuquerque, NM 87185 USA. [Scheiner, Brett] Univ Iowa, Dept Phys & Astron, Iowa City, IA 52242 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 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600274 ER PT J AU Gebhart, TE Winfrey, AL Baylor, LR Ha, T AF Gebhart, T. E. Winfrey, A. L. Baylor, L. R. Ha, T. GP IEEE TI CHARACTERIZATION OF AN ELECTROTHERMAL PLASMA SOURCE WITH AN ELONGATED PULSE LENGTH SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Gebhart, T. E.; Winfrey, A. L.] Univ Florida, Dept Mat Sci & Engn, Nucl Engn Program, Gainesville, FL 32611 USA. [Baylor, L. R.; Ha, T.] Oak Ridge Natl Lab, Fus & Mat Nucl Sci Div, Oak Ridge, TN 37831 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 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600055 ER PT J AU Glinsky, ME AF Glinsky, Michael E. GP IEEE TI Regimes of suprathermal electron transport SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Glinsky, Michael E.] Sandia Natl Labs, Albuquerque, NM 87185 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 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600164 ER PT J AU Godfrey, BB Kirchen, M Lehe, R Vay, JL AF Godfrey, Brendan B. Kirchen, Manuel Lehe, Remi Vay, Jean-Luc GP IEEE TI NOVEL APPROACHES TO SUPPRESS THE NUMERICAL CHERENKOV INSTABILITY IN PSEUDO-SPECTRAL PARTICLE-IN-CELL PLASMA SIMULATION CODES SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Godfrey, Brendan B.] Univ Maryland, College Pk, MD 20742 USA. [Godfrey, Brendan B.; Lehe, Remi; Vay, Jean-Luc] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. [Kirchen, Manuel] Univ Hamburg, Ctr Free Electron Laser Sci, D-22761 Hamburg, Germany. [Kirchen, Manuel] Univ Hamburg, Dept Phys, D-22761 Hamburg, Germany. 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 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600365 ER PT J AU Gourdain, PA Adams, M Barnak, D Betti, R Davies, JC Regan, S Rochau, G Meyerhofer, DD AF Gourdain, P. -A. Adams, M. Barnak, D. Betti, R. Davies, J. C. Regan, S. Rochau, G. Meyerhofer, D. D. GP IEEE TI HIGH FIELD ASSISTED X-RAY SOURCE SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Gourdain, P. -A.; Adams, M.; Barnak, D.; Betti, R.; Davies, J. C.; Regan, S.] Univ Rochester, Laser Energet Lab, Rochester, NY 14627 USA. [Rochau, G.] Sandia Natl Labs, Albuquerque, NM 87185 USA. [Meyerhofer, D. D.] Los Alamos Natl Labs, Los Alamos, NM 87545 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 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600343 ER PT J AU Grabowski, C Degnan, JH Domonkos, M Amdahl, D Ruden, EL Wurden, GA Weber, TE AF Grabowski, C. Degnan, J. H. Domonkos, M. Amdahl, D. Ruden, E. L. Wurden, G. A. Weber, T. E. GP IEEE TI THE FIELD-REVERSED CONFIGURATION HEATING EXPERIMENT ON SHIVA STAR SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Grabowski, C.; Degnan, J. H.; Domonkos, M.; Amdahl, D.; Ruden, E. L.] Air Force Res Lab, Directed Energy Directorate, Kirtland AFB, NM 87117 USA. [Wurden, G. A.; Weber, T. E.] Los Alamos Natl Lab, Los Alamos, NM 87545 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 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600387 ER PT J AU Harilal, SS Yeak, J Brumfield, BE Phillips, MC AF Harilal, S. S. Yeak, J. Brumfield, B. E. Phillips, M. C. GP IEEE TI DYNAMICS OF ATOMIC AND MOLECULAR EMISSION FEATURES FROM NANOSECOND, FEMTOSECOND LASER AND FILAMENT PRODUCED PLASMAS SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Harilal, S. S.; Brumfield, B. E.; Phillips, M. C.] Pacific Northwest Natl Lab, Richland, WA 99352 USA. [Yeak, J.] PM &AM Res LLC, Tucson, AZ 85719 USA. RI Harilal, Sivanandan/B-5438-2014 OI Harilal, Sivanandan/0000-0003-2266-7976 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 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600381 ER PT J AU Hopkins, MM Yee, BT Barnat, EV Baalrud, SD Scheiner, B AF Hopkins, Matthew M. Yee, Benjamin T. Barnat, Edward V. Baalrud, Scott D. Scheiner, Brett GP IEEE TI PLASMA POTENTIAL LOCKING SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Hopkins, Matthew M.; Yee, Benjamin T.; Barnat, Edward V.] Sandia Natl Labs, Appl Opt & Plasma Sci, Albuquerque, NM 87185 USA. [Baalrud, Scott D.; Scheiner, Brett] Univ Iowa, Dept Phys & Astron, Iowa City, IA 52240 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 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600406 ER PT J AU Johnston, MD Patel, SG Kiefer, ML Biswas, S Doron, R Bernshtam, V Stambulchik, E Maron, Y AF Johnston, Mark D. Patel, Sonal G. Kiefer, Mark L. Biswas, S. Doron, R. Bernshtam, V. Stambulchik, E. Maron, Y. GP IEEE TI MEASUREMENTS OF MAGNETIC AND ELECTRIC FIELDS IN HIGH ENERGY ELECTRON BEAM DIODES SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Johnston, Mark D.; Patel, Sonal G.; Kiefer, Mark L.] Sandia Natl Labs, Albuquerque, NM 87185 USA. [Biswas, S.; Doron, R.; Bernshtam, V.; Stambulchik, E.; Maron, Y.] Weizmann Inst Sci, IL-76100 Rehovot, Israel. NR 1 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600157 ER PT J AU Kerr, S Mo, MZ Masud, R Jin, XL Manzoor, L Tiedje, HF Tsui, Y Fedosejevs, R Link, A Patel, P McLean, HS Hazi, A Chen, H Ceurvorst, L Norreys, P AF Kerr, Shaun Mo, Mianzhen Z. Masud, Raj Jin, Xiaolin Manzoor, Laila Tiedje, Henry F. Tsui, Ying Fedosejevs, Robert Link, Anthony Patel, Pray McLean, Harry S. Hazi, Andy Chen, Hui Ceurvorst, Luke Norreys, Peter GP IEEE TI EFFECT OF PREPLASMA ON DOUBLE PULSE IRRADIATION OF TARGETS FOR PROTON ACCELERATION SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Kerr, Shaun; Mo, Mianzhen Z.; Masud, Raj; Jin, Xiaolin; Manzoor, Laila; Tiedje, Henry F.; Tsui, Ying; Fedosejevs, Robert] Univ Alberta, Dept Elect & Comp Engn, Edmonton, AB T6V 2V4, Canada. [Link, Anthony; Patel, Pray; McLean, Harry S.; Hazi, Andy; Chen, Hui] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. [Ceurvorst, Luke; Norreys, Peter] Univ Oxford, Dept Phys, Oxford OX1 3PU, England. 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 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600268 ER PT J AU Koning, J Marinak, M AF Koning, Joseph Marinak, Marty GP IEEE TI NERNST EFFECT IN HYDRA SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Koning, Joseph; Marinak, Marty] Lawrence Livermore Natl Lab, Livermore, CA 94551 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 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600313 ER PT J AU Koshkarov, O Pombo, WF Smolyakov, AI Raitses, Y Kaganovich, ID Umansky, MV AF Koshkarov, O. Pombo, W. Frias Smolyakov, A. I. Raitses, Y. Kaganovich, I. D. Umansky, M. V. GP IEEE TI NONLINEAR SIMULATIONS AND ANOMALOUS TRANSPORT IN HALL THRUSTER PLASMA SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Koshkarov, O.; Pombo, W. Frias; Smolyakov, A. I.] Univ Saskatchewan, Dept Phys & Eng Phys, Saskatoon, SK S7N 5E2, Canada. [Raitses, Y.; Kaganovich, I. D.] PPPL, Princeton, NJ 08543 USA. [Umansky, M. V.] LLNL, Livermore, CA 94550 USA. NR 0 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600083 ER PT J AU Kwan, TJT Le, AY Schmitt, MJ Herrmann, HW Batha, SH AF Kwan, Thomas J. T. Le, Ari Y. Schmitt, Mark J. Herrmann, Hans W. Batha, Steve H. GP IEEE TI Kinetic simulation of direct-drive capsule implosions and experiment comparisons SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Kwan, Thomas J. T.; Le, Ari Y.; Schmitt, Mark J.; Herrmann, Hans W.; Batha, Steve H.] Los Alamos Natl Lab, Los Alamos, NM 87545 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 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600159 ER PT J AU Lane, T Flaugh, M Koepke, M Steinberger, T Loisel, G Bailey, J Rochau, G AF Lane, Theodore Flaugh, Matthew Koepke, Mark Steinberger, Thomas Loisel, Guillaume Bailey, James Rochau, Gregory GP IEEE TI DEVELOPMENT OF AN ISOELECTRONIC LINE RATIO TECHNIQUE FOR IMPROVED DIAGNOSING OF TEMPERATURE AND TEMPERATURE GRADIENTS IN PHOTOIONZED PLASMA SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Lane, Theodore; Flaugh, Matthew; Koepke, Mark; Steinberger, Thomas] West Virginia Univ, Morgantown, WV 26505 USA. [Loisel, Guillaume; Bailey, James; Rochau, Gregory] Sandia Natl Labs, Albuquerque, NM 87123 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 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600396 ER PT J AU Le Pape, S Divol, L Ross, S Wilks, S Amendt, P Hopkins, LB Huser, G Moody, J Mackinnon, AJ Meezan, N AF Le Pape, S. Divol, L. Ross, S. Wilks, S. Amendt, P. Hopkins, L. Berzak Huser, G. Moody, J. Mackinnon, A. J. Meezan, N. GP IEEE TI PLASMA INTERPENATRATION STUDY ON THE OMEGA LASER FACILITY SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Le Pape, S.; Divol, L.; Ross, S.; Wilks, S.; Amendt, P.; Hopkins, L. Berzak; Moody, J.; Meezan, N.] Lawrence Livermore Natl Lab, Livermore, CA USA. [Mackinnon, A. J.] SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA. [Huser, G.] CEA, DAM, DIF, F-91297 Arpajon, France. 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 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600027 ER PT J AU Ma, T MacLaren, S Salmonson, J Khan, S Pino, J Ralph, J Rygg, R Field, J Tommasini, R Turnbull, D Mackinnon, A Baker, K Benedetti, LR Celliers, P Dewald, E Dittrich, T Hopkins, LB Izumi, N Kervin, P Nagel, S Pak, A Tipton, R Kyrala, G Kline, J AF Ma, T. MacLaren, S. Salmonson, J. Khan, S. Pino, J. Ralph, J. Rygg, R. Field, J. Tommasini, R. Turnbull, D. Mackinnon, A. Baker, K. Benedetti, L. R. Celliers, P. Dewald, E. Dittrich, T. Hopkins, L. Berzak Izumi, N. Kervin, P. Nagel, S. Pak, A. Tipton, R. Kyrala, G. Kline, J. GP IEEE TI TEMPORAL EVOLUTION OF THE TWO-SHOCK IMPLOSION ON THE NATIONAL IGNITION FACILITY SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Ma, T.; MacLaren, S.; Salmonson, J.; Khan, S.; Pino, J.; Ralph, J.; Rygg, R.; Field, J.; Tommasini, R.; Turnbull, D.; Mackinnon, A.; Baker, K.; Benedetti, L. R.; Celliers, P.; Dewald, E.; Dittrich, T.; Hopkins, L. Berzak; Izumi, N.; Kervin, P.; Nagel, S.; Pak, A.; Tipton, R.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Kyrala, G.; Kline, J.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. NR 0 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600029 ER PT J AU Mazarakis, MG Cuneo, ME Fournier, SD Johnston, MD Kiefer, MI Leckbee, JJ Nielsen, DS Oliver, BV Simpson, S Renk, TJ Webb, TJ Ziska, D Bennett, N Droemer, DW Cignac, RE Obregon, RJ Smith, CC Wilkins, FL Welch, DR AF Mazarakis, Michael G. Cuneo, Michael E. Fournier, Sean D. Johnston, Mark D. Kiefer, Mark I. Leckbee, Joshua J. Nielsen, Dan S. Oliver, Bryan V. Simpson, Sean Renk, Timothy J. Webb, Timothy J. Ziska, Derek Bennett, Nichelle Droemer, Darryl W. Cignac, Raymond E. Obregon, Robert J. Smith, Chase C. Wilkins, Frank L. Welch, Dale R. GP IEEE TI CONTRIBUTION OF THE BACKSTREAMING IONS TO THE SELF- MAGNETIC PINCH (SMP) DIODE CURRENT SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Mazarakis, Michael G.; Cuneo, Michael E.; Fournier, Sean D.; Johnston, Mark D.; Kiefer, Mark I.; Leckbee, Joshua J.; Nielsen, Dan S.; Oliver, Bryan V.; Simpson, Sean; Renk, Timothy J.; Webb, Timothy J.; Ziska, Derek] Sandia Natl Labs, Albuquerque, NM 87185 USA. [Bennett, Nichelle; Droemer, Darryl W.; Cignac, Raymond E.; Obregon, Robert J.; Smith, Chase C.; Wilkins, Frank L.] Natl Secur Technol LLC, Las Vegas, NV 89193 USA. [Welch, Dale R.] Voss Sci LLC, Albuquerque, NM 87108 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 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600323 ER PT J AU Michel, P Turnbull, D Goyon, C Divol, L Chapman, T Pollock, B Ross, JS Mariscal, D Moody, JD AF Michel, P. Turnbull, D. Goyon, C. Divol, L. Chapman, T. Pollock, B. Ross, J. S. Mariscal, D. Moody, J. D. GP IEEE TI MULTI-BEAM LASER-PLASMA INTERACTIONS: FROM ICF TO "PLASMA PHOTONICS" APPLICATIONS SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Michel, P.; Turnbull, D.; Goyon, C.; Divol, L.; Chapman, T.; Pollock, B.; Ross, J. S.; Mariscal, D.; Moody, J. D.] Lawrence Livermore Natl Lab, Livermore, CA 94550 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 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600382 ER PT J AU Moore, CH Fierro, AS Hjalmarson, HP Jorgenson, RE Hopkins, MM Biedermann, LB AF Moore, Chris H. Fierro, Andrew S. Hjalmarson, Harold P. Jorgenson, Roy E. Hopkins, Matthew M. Biedermann, Laura B. GP IEEE TI DEVELOPMENT OF PIC-DSMC AIR BREAKDOWN MODEL IN THE PRESENCE OF A DIELECTRIC: BREAKDOWN TIME SENSITIVITY TO SELF-ABSORPTION AND PHOTOEMISSION SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Moore, Chris H.; Fierro, Andrew S.; Hjalmarson, Harold P.; Jorgenson, Roy E.; Hopkins, Matthew M.; Biedermann, Laura B.] Sandia Natl Labs, Albuquerque, NM 87185 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 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600249 ER PT J AU Nemchinsky, V Raitses, Y AF Nemchinsky, V. Raitses, Y. GP IEEE TI TWO MODES OF ANODE OPERATION IN ARC WITH ABLATING ANODE SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Nemchinsky, V.] Keiser Univ, Ft Lauderdale, FL 33309 USA. [Raitses, Y.] Princeton Plasma Phys Lab, Princeton, NJ 08540 USA. NR 0 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600078 ER PT J AU Patel, SG Johnston, MD Webb, TJ Muron, DJ Bennett, NL Kiefer, ML Maron, Y Gilgenbach, RM AF Patel, S. G. Johnston, M. D. Webb, T. J. Muron, D. J. Bennett, N. L. Kiefer, M. L. Maron, Y. Gilgenbach, R. M. GP IEEE TI MAGNETIC FIELD MEASUREMENTS ON THE SELF MAGNETIC PINCH DIODE AT SNL USING ZEEMAN SPLITTING SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Patel, S. G.; Johnston, M. D.; Webb, T. J.; Muron, D. J.; Bennett, N. L.; Kiefer, M. L.] Sandia Natl Labs, Albuquerque, NM 87185 USA. [Maron, Y.] Weizmann Inst Sci, Rehovot, Israel. [Gilgenbach, R. M.] Univ Michigan, Ann Arbor, MI 48109 USA. NR 1 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600324 ER PT J AU Romadanov, I Smolyakov, A Koshkarov, A Raitses, Y Kaganovich, I AF Romadanov, I. Smolyakov, A. Koshkarov, A. Raitses, Y. Kaganovich, I. GP IEEE TI NONLOCAL REGIMES OF LARGE SCALE INSTABILITIES OF INHOMOGENEOUS HALL PLASMAS SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Romadanov, I.; Smolyakov, A.; Koshkarov, A.] Univ Saskatchewan, Saskatoon, SK, Canada. [Raitses, Y.; Kaganovich, I.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA. NR 0 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600082 ER PT J AU Rose, CR AF Rose, C. R. GP IEEE TI FOURIER SERIES ANALYSIS AND SYNTHESIS OF TYPE-E PFNS FOR TIME-VARYING LOADS SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Rose, C. R.] Los Alamos Natl Lab, Los Alamos, NM 87544 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 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600203 ER PT J AU Safronova, AS Kantsyrev, VL Petkov, EE Shlyaptseva, VV Safronova, UI Shrestha, IK Weller, ME Schultz, KA Cooper, MC Stafford, A Beiersdorfer, P Hell, N Brown, G AF Safronova, Alla S. Kantsyrev, Victor L. Petkov, Emil E. Shlyaptseva, Veronica V. Safronova, Ulyana I. Shrestha, Ishor K. Weller, Michael E. Schultz, Kimberly A. Cooper, Matthew C. Stafford, Austin Beiersdorfer, Peter Hell, Natalie Brown, Greg GP IEEE TI LINE EMISSION FROM MOLYBDENUM HIGH ENERGY DENSITY PLASMA BENCHMARKED WITH EBIT EXPERIMENTS SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Safronova, Alla S.; Kantsyrev, Victor L.; Petkov, Emil E.; Shlyaptseva, Veronica V.; Safronova, Ulyana I.; Shrestha, Ishor K.; Weller, Michael E.; Schultz, Kimberly A.; Cooper, Matthew C.; Stafford, Austin] Univ Nevada, Reno, NV 89557 USA. [Weller, Michael E.; Beiersdorfer, Peter; Hell, Natalie; Brown, Greg] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. NR 0 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600419 ER PT J AU Scheiner, B Baalrud, SD Yee, BT Hopkins, MM Barnat, EV AF Scheiner, Brett Baalrud, Scott D. Yee, Benjamin T. Hopkins, Matthew M. Barnat, Edward V. GP IEEE TI THEORY OF SHEATHS NEAR POSITIVELY BIASED ELECTRODES SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Scheiner, Brett; Baalrud, Scott D.] Univ Iowa, Dept Phys & Astron, Iowa City, IA 52240 USA. [Yee, Benjamin T.; Hopkins, Matthew M.; Barnat, Edward V.] Sandia Natl Labs, Albuquerque, NM 87185 USA. NR 1 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600404 ER PT J AU Scullard, CR Graziani, FR Belt, A Fennell, S Jankovic, M Ng, N Serna, S AF Scullard, Christian R. Graziani, Frank R. Belt, Andrew Fennell, Susan Jankovic, Marija Ng, Nathan Serna, Susana GP IEEE TI Numerical solution of the quantum Lenard-Balescu equation SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Scullard, Christian R.; Graziani, Frank R.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Belt, Andrew; Fennell, Susan; Jankovic, Marija; Ng, Nathan; Serna, Susana] Univ Calif Los Angeles, Inst Pure & Appl Math, Los Angeles, CA 90015 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 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600367 ER PT J AU Shipley, GA Stutz, SA Awe, TJ La Ppa, DC Jennings, CA McBride, RD AF Shipley, G. A. Stutz, S. A. Awe, T. J. La Ppa, D. C. Jennings, C. A. McBride, R. D. GP IEEE TI AUTO-MAGNETIZING LINERS FOR MAGLIF EXPERIMENTS SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Shipley, G. A.; Stutz, S. A.; Awe, T. J.; La Ppa, D. C.; Jennings, C. A.; McBride, R. D.] Sandia Natl Labs, Albuquerque, NM 87106 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 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600032 ER PT J AU Simpson, SC Johnston, MD Mazarakis, MG Renk, TJ Tang, R Webb, TJ Nielsen, DS Ziska, DR Kiefer, ML Patel, S Zier, JC Weber, BV AF Simpson, Sean C. Johnston, Mark D. Mazarakis, Michael G. Renk, Timothy J. Tang, Ricky Webb, Timothy J. Nielsen, Dan S. Ziska, Derek R. Kiefer, Mark L. Patel, Sonal Zier, Jacob C. Weber, Bruce V. GP IEEE TI In-Situ Anode Heating and Plasma Glow Discharge Cleaning and Its Effects on Atomic Constituents in the A-K Gap in Self-Magnetic Pinch (SMP) Experiments SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Simpson, Sean C.; Johnston, Mark D.; Mazarakis, Michael G.; Renk, Timothy J.; Tang, Ricky; Webb, Timothy J.; Nielsen, Dan S.; Ziska, Derek R.; Kiefer, Mark L.] Sandia Natl Labs, Albuquerque, NM 87185 USA. [Patel, Sonal] Univ Michigan, Ann Arbor, MI 48109 USA. [Zier, Jacob C.; Weber, Bruce V.] 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 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600326 ER PT J AU Smolyakov, A Koshkarov, A Romadanov, I Chapurin, A Umansky, M Raitses, Y Kaganovich, L AF Smolyakov, A. Koshkarov, A. Romadanov, I. Chapurin, A. Umansky, M. Raitses, Y. Kaganovich, L. GP IEEE TI TURBULENCE AND STRUCTURES RELATED TO LOWER-HYBRID AND ION-SOUND INSTABILITIES IN HALL THRUSTERS SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Smolyakov, A.; Koshkarov, A.; Romadanov, I.; Chapurin, A.] Univ Saskatchewan, Saskatoon, SK, Canada. [Umansky, M.] Lawrence Livermore Natl Lab, Livermore, CA USA. [Raitses, Y.; Kaganovich, L.] Princeton Plasma Phys Lab, Princeton, NJ 08543 USA. NR 0 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600035 ER PT J AU Srinivasan, B Cagas, P Hakim, AH AF Srinivasan, Bhuvana Cagas, Petr Hakim, Ammar H. GP IEEE TI SIMULATIONS OF PLASMA SHEATHS USING CONTINUUM KINETIC MODELS SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Srinivasan, Bhuvana; Cagas, Petr] Virginia Tech, Dept Aerosp & Ocean Engn, Blacksburg, VA 24060 USA. [Hakim, Ammar H.] Princeton Plasma Phys Lab, Princeton, NJ 08540 USA. NR 0 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600279 ER PT J AU Stoltz, PH Kundrapu, M Beckwith, KRC Langendorf, S Hsu, SC AF Stoltz, Peter H. Kundrapu, Madhusudan Beckwith, Kristian R. C. Langendorf, Samuel Hsu, Scott C. GP IEEE TI BENCHMARIUNG SIMULATIONS OF PLASMA LINER-DRIVEN MAGNETO-INERTIAL FUSION WITH ADVANCED EQUATION OF STATE SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Stoltz, Peter H.; Kundrapu, Madhusudan; Beckwith, Kristian R. C.] Tech X Corp, Boulder, CO 80303 USA. [Langendorf, Samuel; Hsu, Scott C.] Los Alamos Natl Lab, Los Alamos, NM 87545 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 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600058 ER PT J AU Tang, R Barnat, EV Hopkins, MM Miller, PA AF Tang, Ricky Barnat, Edward V. Hopkins, Matthew M. Miller, Paul A. GP IEEE TI TEMPORAL AND SPATIAL DYNAMICS OF A BIPOLAR PULSED PLASMA AT AUDIO FREQUENCY SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Tang, Ricky; Barnat, Edward V.; Hopkins, Matthew M.; Miller, Paul A.] Sandia Natl Labs, Albuquerque, NM 87185 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 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600145 ER PT J AU Witherspoon, FD Case, A Brockington, SJ Cruz, EJ Luna, M Hsu, SC Langendorf, S Dunn, J AF Witherspoon, F. Douglas Case, Andrew Brockington, Samuel J. Cruz, Edward J. Luna, Marco Hsu, Scott C. Langendorf, Samuel Dunn, John GP IEEE TI COAXIAL GUNS FOR THE ARPA-E PLX-alpha PROJECT - DESIGN AND INITIAL EXPERIMENTAL RESULTS SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Witherspoon, F. Douglas; Case, Andrew; Brockington, Samuel J.; Cruz, Edward J.; Luna, Marco] HyperV Technol Corp, Chantilly, VA 20151 USA. [Hsu, Scott C.; Langendorf, Samuel; Dunn, John] Los Alamos Natl Lab, Los Alamos, NM 87545 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 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600031 ER PT J AU Yee, BT Barnat, EV Hopkins, MM Scheiner, B Baalrud, SD AF Yee, Benjamin T. Barnat, Edward V. Hopkins, Matthew M. Scheiner, Brett Baalrud, Scott D. GP IEEE TI LENGTH SCALES OF THE ELECTRON SHEATH AND PRESHEATH SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Yee, Benjamin T.; Barnat, Edward V.; Hopkins, Matthew M.] Sandia Natl Labs, Albuquerque, NM 87185 USA. [Scheiner, Brett; Baalrud, Scott D.] Univ Iowa, Dept Phys & Astron, Iowa City, IA 52240 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 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600220 ER PT J AU Zielinski, J Smolyakov, A Umansky, M AF Zielinski, Jeffery Smolyakov, Andrei Umansky, Maxim GP IEEE TI ELECTROMAGNETIC ELECTRON TEMPERATURE GRADIENT MODE AND ANOMALOUS ELECTRON ENERGY TRANSPORT SO 2016 43RD IEEE INTERNATIONAL CONFERENCE ON PLASMA SCIENCE (ICOPS) LA English DT Meeting Abstract CT 43rd IEEE International Conference on Plasma Science (ICOPS) CY JUN 19-23, 2016 CL Banff, CANADA SP IEEE Nucl & Plasma Sci Soc, Plasma Sci & Applicat Comm, IEEE C1 [Zielinski, Jeffery; Smolyakov, Andrei] Univ Saskatchewan, Saskatoon, SK, Canada. [Umansky, Maxim] Lawrence Livermore Natl Lab, Livermore, 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 978-1-4673-9601-1 PY 2016 PG 1 WC Engineering, Multidisciplinary; Physics, Fluids & Plasmas SC Engineering; Physics GA BG6ZR UT WOS:000391073600161 ER PT J AU Cesario, E Catlett, C Talia, D AF Cesario, Eugenio Catlett, Charlie Talia, Domenico BE Wang, KIK Jin, Q Zhang, Q Bhuiyan, MZA Hsu, CH TI Forecasting Crimes using Autoregressive Models SO 2016 IEEE 14TH INTL CONF ON DEPENDABLE, AUTONOMIC AND SECURE COMPUTING, 14TH INTL CONF ON PERVASIVE INTELLIGENCE AND COMPUTING, 2ND INTL CONF ON BIG DATA INTELLIGENCE AND COMPUTING AND CYBER SCIENCE AND TECHNOLOGY CONGRESS (DASC/PICOM/DATACOM/CYBERSC LA English DT Proceedings Paper CT 14th IEEE Intl Conf on Dependable, Autonomic and Secure Comp / 14th IEEE Intl Conf on Pervasive Intelligence and Comp / 2nd IEEE Intl Conf on Big Data Intelligence and Comp / IEEE Cyber Sci and Technol Congress (DASC/PiCom/DataCom/CyberSciTech) CY AUG 08-12, 2016 CL Auckland, NEW ZEALAND SP IEEE, IEEE Comp Soc, IEEE Tech Comm Scalable Comp AB As a result of steadily increasing urbanization, by 2030 more than sixty percent of the global population will live in cities. This phenomenon is stimulating significant economic and social transformations, both positive (such as, increased opportunities offered in urban areas) and negative (such as, increased crime and pressures on city budgets). Nevertheless, new technologies are enabling police departments to access growing volumes of crime-related data that can be analyzed to understand patterns and trends. Such knowledge is useful to anticipate criminal activity and thus to optimize public safety resource allocation (officers, patrol routes, etc.) through mathematical techniques to predict crimes. This paper presents an approach, based on auto-regressive models, for reliably forecasting crime trends in urban areas. In particular, the main goal of the work is to design a predictive model to forecast the number of crimes that will happen in rolling time horizons. As a case study, we present the analysis performed on an area of Chicago, using a variety of open data sources available for exploration and examination through the University of Chicagos Plenario platform. Experimental evaluation shows that the proposed methodology predicts the number of crimes with an accuracy of 84% on one-year-ahead forecasts and of 80% on two-year-ahead forecasts. C1 [Cesario, Eugenio] ICAR CNR, Arcavacata Di Rende, CS, Italy. [Catlett, Charlie] Univ Chicago, Argonne Natl Lab, Chicago, IL 60637 USA. [Talia, Domenico] DIMES Univ Calabria, Arcavacata Di Rende, CS, Italy. RP Cesario, E (reprint author), ICAR CNR, Arcavacata Di Rende, CS, Italy. EM cesario@icar.cnr.it; catlett@anl.gov; talia@dimes.unical.it NR 18 TC 0 Z9 0 U1 3 U2 3 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-5090-4065-0 PY 2016 BP 795 EP 802 DI 10.1109/DASC-PICom-DataCom-CyberSciTec.2016.138 PG 8 WC Computer Science, Information Systems; Computer Science, Theory & Methods SC Computer Science GA BG6YO UT WOS:000391002500123 ER PT S AU Schwarz, SJT Amer, A Kroeger, T Miller, E Long, D Paris, JF AF Schwarz, Thomas S. J. Amer, Ahmed Kroeger, Thomas Miller, Ethan Long, Darrell Paris, Jehan-Francois GP IEEE TI RESAR: Reliable Storage at Exabyte Scale SO 2016 IEEE 24TH INTERNATIONAL SYMPOSIUM ON MODELING, ANALYSIS AND SIMULATION OF COMPUTER AND TELECOMMUNICATION SYSTEMS (MASCOTS) SE International Symposium on Modeling Analysis and Simulation of Computer and Telecommunication Systems Proceedings LA English DT Proceedings Paper CT 24th IEEE International Symposium on Modeling, Analysis and Simulation of Computer and Telecommunication Systems (MASCOTS) CY SEP 19-21, 2016 CL Imperial Coll Campus, London, ENGLAND SP IEEE, IEEE Comp Soc, Scientia Imperii Decus Tutamen HO Imperial Coll Campus ID DISK ARRAYS; ARCHITECTURES; LAYOUTS AB Stored data needs to be protected against device failure and irrecoverable sector read errors, yet doing so at exabyte scale can be challenging given the large number of failures that must be handled. We have developed RESAR (Robust, Efficient, Scalable, Autonomous, Reliable) storage, an approach to storage system redundancy that only uses XOR-based parity and employs a graph to lay out data and parity. The RESAR layout offers greater robustness and higher flexibility for repair at the same overhead as a declustered version of RAID 6. For instance, a RESAR-based layout with 16 data disklets per stripe has about 50 times lower probability of suffering data loss in the presence of a fixed number of failures than a corresponding RAID 6 organization. RESAR uses a layer of virtual storage elements to achieve better manageability, a broader potential for energy savings, as well as easier adoption of heterogeneous storage devices. C1 [Schwarz, Thomas S. J.] Marquette Univ, Milwaukee, WI 53233 USA. [Amer, Ahmed] Santa Clara Univ, Santa Clara, CA 95053 USA. [Kroeger, Thomas] Sandia Natl Labs, Livermore, CA USA. [Miller, Ethan; Long, Darrell] Univ Calif Santa Cruz, SSRC, Santa Cruz, CA 95064 USA. [Paris, Jehan-Francois] Univ Houston, Houston, TX USA. RP Schwarz, SJT (reprint author), Marquette Univ, Milwaukee, WI 53233 USA. EM tschwarz@jesuits.org; aamer@scu.edu; tmkroeg@sandia.gov; elm@soe.ucsc.edu; darrell@soe.ucsc.edu; jfparis@uh.edu NR 35 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 1526-7539 BN 978-1-5090-3432-1 J9 I S MOD ANAL SIM COM PY 2016 BP 211 EP 220 DI 10.1109/MASCOTS.2016.13 PG 10 WC Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA BG6XR UT WOS:000390937800024 ER PT J AU Zhang, L Shi, HX Sun, K Xiao, X Lu, XN AF Zhang, Lei Shi, Haixu Sun, Kai Xiao, Xi Lu, Xiaonan GP IEEE TI A Smooth Switch Method for Battery Energy Storage Systems between Vf Mode and PQ Mode by Utilizing Electromagnetic Relay SO 2016 IEEE 8TH INTERNATIONAL POWER ELECTRONICS AND MOTION CONTROL CONFERENCE (IPEMC-ECCE ASIA) SE IEEE International Power Electronics and Motion Control Conference IPEMC LA English DT Proceedings Paper CT 8th IEEE International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia) CY MAY 22-26, 2016 CL Hefei, PEOPLES R CHINA SP IEEE DE Energy Storage System (ESS); Solid State Relay (SSR); Electromagnetic Relay (EMR); Smooth Switch AB Battery energy storage systems (BESS) plays a significant role in micro-grids which consist of renewable energy systems. As the interface between storage components and grids, converter takes a big cost in ESS. Cost abatement of each part in converters is an important part in economic consideration. For grid connection, solid state relays (SSR) and electromagnetic relays (EMR) are two common choice. SSR owns a quick response (less than few ms) while EMR is much cheaper and with low conduct loss, but suffers a much slower response (5 to 50 ms) due to its excitation and mechanical movement. For fast response (milliseconds) of converters, the switch that connects ESS and grid is ordinarily SSR. Grid connection relay is not one of the most expensive components in converters, but assuming that thousands of SSRs in ESS being replaced by EMRs, a huge cost would be saved. This paper mainly discuss a new smooth switch method between Grid-connected and off-grid states based on Vf and PQ control, which allows electromagnetic relay takes the place of solid state relay, so as to reduce the cost. C1 [Zhang, Lei] TEBA Xian Elect Technol CO Ltd, Xian 710119, Shaanxi, Peoples R China. [Shi, Haixu; Sun, Kai; Xiao, Xi] Tsinghua Univ, Dept Elect Engn, State Key Lab Control & Simulat Power Syst & Gene, Beijing 100084, Peoples R China. [Lu, Xiaonan] Argonne Natl Lab, Div Energy Syst, Chicago, IL USA. RP Zhang, L (reprint author), TEBA Xian Elect Technol CO Ltd, Xian 710119, Shaanxi, Peoples R China. 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 978-1-5090-1210-7 J9 IEEE INT POWER ELEC PY 2016 PG 6 WC Engineering, Electrical & Electronic SC Engineering GA BG6YG UT WOS:000390949703141 ER PT S AU Laraway, SA Moradi, H Farhang-Boroujeny, B AF Laraway, Stephen Andrew Moradi, Hussein Farhang-Boroujeny, Behrouz GP IEEE TI BER Performance Study of HF Band FB-MC-SS SO 2016 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 MAY 22-27, 2016 CL Kuala Lumpur, MALAYSIA SP IEEE ID RAYLEIGH FADING CHANNELS; DIVERSITY; SCHEMES AB In a recent paper, we have proposed a filter bank multicarrier spread spectrum (FB-MC-SS) waveform as a new method for wideband spread spectrum communications in HF bands. We have noted that FB-MC-SS is well suited for this application because of its robustness against narrow and partial band interference and because it has good performance over a wide range of delay and Doppler spreads. In this paper, we further our study and analyze the bit error rate (BER) of FB-MC-SS when applied to HF channels. Our study is a comprehensive one and includes time-varying characteristics of HF channels, channel estimation error, and correlation among subcarriers in the proposed FB-MC-SS system. C1 [Laraway, Stephen Andrew; Farhang-Boroujeny, Behrouz] Univ Utah, Dept Elect & Comp Engn, Salt Lake City, UT 84112 USA. [Moradi, Hussein] Idaho Natl Lab, Wireless Res Team, Idaho Falls, ID USA. RP Laraway, SA (reprint author), Univ Utah, Dept Elect & Comp Engn, Salt Lake City, UT 84112 USA. EM andylaraway@yahoo.com; hussein.moradi@inl.gov; farhang@ece.utah.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 1550-3607 BN 978-1-4799-6664-6 J9 IEEE ICC PY 2016 PG 7 WC Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA BG6YK UT WOS:000390993202114 ER PT J AU Quinn, CJ Pinar, A Gao, J Su, L AF Quinn, Christopher J. Pinar, Ali Gao, Jing Su, Lu GP IEEE TI Sparse Approximations of Directed Information Graphs SO 2016 IEEE INTERNATIONAL SYMPOSIUM ON INFORMATION THEORY SE IEEE International Symposium on Information Theory LA English DT Proceedings Paper CT IEEE International Symposium on Information Theory (ISIT) CY JUL 10-15, 2016 CL Barcelona, SPAIN SP IEEE, IEEE Informat Theory Soc, Univ Pompeu Fabra Barcelona, NSF, Qualcomm, Huawei, Google, IEEE BigData, Gobierno Espana, Minist Economia Compititividad ID BAYESIAN NETWORKS; GRANGER CAUSALITY AB Given a network of agents interacting over time, which few interactions best characterize the dynamics of the whole network? We propose an algorithm that finds the optimal sparse approximation of a network. The user controls the level of sparsity by specifying the total number of edges. The networks are represented using directed information graphs, a graphical model that depicts causal influences between agents in a network. Goodness of approximation is measured with Kullback-Leibler divergence. The algorithm finds the best approximation with no assumptions on the topology or the class of the joint distribution. C1 [Quinn, Christopher J.] Purdue Univ, Sch Ind Engn, W Lafayette, IN 47907 USA. [Pinar, Ali] Sandia Natl Labs, Data Sci & Cyber Anal Dept, Livermore, CA USA. [Gao, Jing; Su, Lu] Univ Buffalo, Dept Comp Sci & Engn, Buffalo, NY USA. RP Quinn, CJ (reprint author), Purdue Univ, Sch Ind Engn, W Lafayette, IN 47907 USA. EM cjquinn@purdue.edu; apinar@sandia.gov; jing@buffalo.edu; lusu@buffalo.edu NR 20 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-5090-1806-2 J9 IEEE INT SYMP INFO PY 2016 BP 1735 EP 1739 PG 5 WC Computer Science, Theory & Methods; Engineering, Electrical & Electronic SC Computer Science; Engineering GA BG6DW UT WOS:000390098701160 ER PT J AU Khromova, I Kuzel, P Brener, I Reno, JL Seu, UCC Elissalde, C Mounaix, P Mitrofanov, O AF Khromova, Irina Kuzel, Petr Brener, Igal Reno, John L. Seu, U-Chan Chung Elissalde, Catherine Mounaix, Patrick Mitrofanov, Oleg GP IEEE TI Anisotropy in dielectric THz meta-atoms SO 2016 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 OCT 10-13, 2016 CL Saint Gilles, FRANCE SP IEEE, Radio Soc Mauritius, IEEE APS, IEEE Reg 8, Univ Reun, URSI, Reg Reun, CST, IEEE France Sect AB Dielectric terahertz (THz) resonators of sub-wavelength size, as compared to free-space wavelength at resonance, are essential building blocks for the emerging all-dielectric THz technology. We experimentally and numerically study the effects of material anisotropy in THz dielectric spheres made of mono-crystalline titanium dioxide (TiO2). We measured the THz response of anisotropic dielectric micro-spheres using near-field THz time-domain spectroscopy. We experimentally demonstrate the splitting of narrow magnetic dipole resonances, corresponding to ordinary and extraordinary Mie modes, attributed to strong material anisotropy. We study ensembles of mono-crystalline TiO2 spheres that can be used as advanced meta-atom designs for THz metamaterials technology. C1 [Khromova, Irina] Kings Coll London, Dept Phys, London WC2R 2LS, England. [Khromova, Irina] ITMO Univ, Chair Nanophoton & Metamat, St Petersburg, Russia. [Kuzel, Petr] Acad Sci Czech Republic, Prague, Czech Republic. [Brener, Igal; Reno, John L.; Mitrofanov, Oleg] Sandia Natl Labs, Ctr Integrated Nanotechnol, Livermore, CA 94550 USA. [Brener, Igal; Reno, John L.] Sandia Natl Labs, Livermore, CA 94550 USA. [Seu, U-Chan Chung; Elissalde, Catherine] Univ Bordeaux, ICMCB, Bordeaux, France. [Mounaix, Patrick] Univ Bordeaux, IMS, Bordeaux, France. [Mitrofanov, Oleg] UCL, Dept Elect & Elect Engn, London WC1E 6BT, England. RP Khromova, I (reprint author), Kings Coll London, Dept Phys, London WC2R 2LS, England.; Khromova, I (reprint author), ITMO Univ, Chair Nanophoton & Metamat, St Petersburg, Russia. EM irina.khromova@kcl.ac.uk RI Mitrofanov, Oleg/C-1938-2008; Kuzel, Petr/G-6006-2014 OI Mitrofanov, Oleg/0000-0003-3510-2675; NR 7 TC 0 Z9 0 U1 4 U2 4 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-5090-2580-0 PY 2016 PG 2 WC Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA BG6XQ UT WOS:000390936300016 ER PT J AU Wood, D Hensley, DK Roberts, N AF Wood, David Hensley, Dale K. Roberts, Nicholas TI Enhanced thermal conductance of polymer composites through embedding aligned carbon nanofibers SO AIMS MATERIALS SCIENCE LA English DT Article DE thermal interface material; thermal conductance; composite; carbon nanofiber; polymer ID CONDUCTIVITY; FILMS; METAL AB The focus of this work is to find a more efficient method of enhancing the thermal conductance of polymer thin films. This work compares polymer thin films embedded with randomly oriented carbon nanotubes to those with vertically aligned carbon nanofibers. Thin films embedded with carbon nanofibers demonstrated a similar thermal conductance between 40-60 mu m and a higher thermal conductance between 25-40 mu m than films embedded with carbon nanotubes with similar volume fractions even though carbon nanotubes have a higher thermal conductivity than carbon nanofibers. C1 [Wood, David; Roberts, Nicholas] Utah State Univ, Dept Mech & Aerosp Engn, Old Main Hill, Logan, UT 84322 USA. [Hensley, Dale K.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, 1 Bethel Valley Rd, Oak Ridge, TN 37831 USA. RP Roberts, N (reprint author), Utah State Univ, Dept Mech & Aerosp Engn, Old Main Hill, Logan, UT 84322 USA. EM nick.roberts@usu.edu FU USU Summer Undergraduate Research and Creative Opportunity (SURCO) Grant; Utah State University College Engineering Undergraduate Research Program (EURP) grant; National Science Foundation [CMMI-1337932] FX Study was conducted with funding from a USU Summer Undergraduate Research and Creative Opportunity (SURCO) Grant and a Utah State University College Engineering Undergraduate Research Program (EURP) grant. We acknowledge the support from the National Science Foundation (CMMI-1337932) and the Microscopy Core Facility at Utah State University for the SEM result. Additional lab assistance provided by the Utah State University Department of Mechanical and Aerospace Engineering. NR 30 TC 0 Z9 0 U1 0 U2 0 PU AMER INST MATHEMATICAL SCIENCES-AIMS PI SPRINGFIELD PA PO BOX 2604, SPRINGFIELD, MO 65801-2604 USA SN 2372-0468 EI 2372-0484 J9 AIMS MATER SCI JI AIMS Mater. Sci. PY 2016 VL 3 IS 3 BP 851 EP 861 DI 10.3934/matersci.2016.3.851 PG 11 WC Materials Science, Multidisciplinary SC Materials Science GA EG2OF UT WOS:000390882300009 ER PT J AU Wen, HM AF Wen, Haiming TI Preface to the special issue on advanced microstructural characterization of materials SO AIMS MATERIALS SCIENCE LA English DT Editorial Material C1 [Wen, Haiming] Idaho State Univ, Dept Phys Nucl & Elect Engn, Idaho Falls, ID 83402 USA. [Wen, Haiming] Idaho Natl Lab, Characterizat & Adv PIE Div, Idaho Falls, ID 83415 USA. RP Wen, HM (reprint author), Idaho State Univ, Dept Phys Nucl & Elect Engn, Idaho Falls, ID 83402 USA.; Wen, HM (reprint author), Idaho Natl Lab, Characterizat & Adv PIE Div, Idaho Falls, ID 83415 USA. EM wenhaim@isu.edu RI Wen, Haiming/B-3250-2013 OI Wen, Haiming/0000-0003-2918-3966 NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER INST MATHEMATICAL SCIENCES-AIMS PI SPRINGFIELD PA PO BOX 2604, SPRINGFIELD, MO 65801-2604 USA SN 2372-0468 EI 2372-0484 J9 AIMS MATER SCI JI AIMS Mater. Sci. PY 2016 VL 3 IS 3 BP 1255 EP 1255 DI 10.3934/matersci.2016.3.1255 PG 1 WC Materials Science, Multidisciplinary SC Materials Science GA EG2OF UT WOS:000390882300032 ER PT J AU Ansong, C Clair, G Kyle, J Kim, YM Dautel, S Sontag, R Zink, E Carson, J Corley, R AF Ansong, C. Clair, G. Kyle, J. Kim, Y. -M. Dautel, S. Sontag, R. Zink, E. Carson, J. Corley, R. TI Comprehensive Molecular Profiling Of The Lung Using Mass Spectrometry Based Omics Technologies SO AMERICAN JOURNAL OF RESPIRATORY AND CRITICAL CARE MEDICINE LA English DT Meeting Abstract CT International Conference of the American-Thoracic-Society (ATS) CY MAY 13-18, 2016 CL San Francisco, CA SP Amer Thorac Soc C1 [Ansong, C.; Clair, G.; Kyle, J.; Kim, Y. -M.; Dautel, S.; Sontag, R.; Zink, E.; Corley, R.] Pacific Northwest Natl Lab, Richland, WA USA. [Carson, J.] Texas Adv Comp Ctr, Austin, TX USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER THORACIC SOC PI NEW YORK PA 25 BROADWAY, 18 FL, NEW YORK, NY 10004 USA SN 1073-449X EI 1535-4970 J9 AM J RESP CRIT CARE JI Am. J. Respir. Crit. Care Med. PY 2016 VL 193 MA A4060 PG 1 WC Critical Care Medicine; Respiratory System SC General & Internal Medicine; Respiratory System GA EG0VE UT WOS:000390749603443 ER PT J AU Carson, J Ljungberg, MC Laskin, J Nguyen, S Sontag, R Umrod, T Ansong, C Corley, R AF Carson, J. Ljungberg, M. C. Laskin, J. Nguyen, S. Sontag, R. Umrod, T. Ansong, C. Corley, R. CA LungMAP Consortium Investigators TI Spatial Molecular Atlas Of Normal Lung Development In Mouse SO AMERICAN JOURNAL OF RESPIRATORY AND CRITICAL CARE MEDICINE LA English DT Meeting Abstract CT International Conference of the American-Thoracic-Society (ATS) CY MAY 13-18, 2016 CL San Francisco, CA SP Amer Thorac Soc C1 [Carson, J.; Umrod, T.] Univ Texas Austin, Austin, TX 78712 USA. [Ljungberg, M. C.] Baylor Coll Med, Houston, TX 77030 USA. [Laskin, J.; Nguyen, S.; Sontag, R.; Ansong, C.; Corley, R.] Pacific Northwest Natl Lab, Richland, WA USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER THORACIC SOC PI NEW YORK PA 25 BROADWAY, 18 FL, NEW YORK, NY 10004 USA SN 1073-449X EI 1535-4970 J9 AM J RESP CRIT CARE JI Am. J. Respir. Crit. Care Med. PY 2016 VL 193 MA A3868 PG 2 WC Critical Care Medicine; Respiratory System SC General & Internal Medicine; Respiratory System GA EG0VE UT WOS:000390749603252 ER PT J AU Clair, G Piehowski, P Nicola, T Kitzmiller, JA Ambalavanan, N Carson, J Corley, R Ansong, C AF Clair, G. Piehowski, P. Nicola, T. Kitzmiller, J. A. Ambalavanan, N. Carson, J. Corley, R. Ansong, C. TI Proteomics Of Laser Capture Micro-Dissected Alveolar Tissue During Lung Development SO AMERICAN JOURNAL OF RESPIRATORY AND CRITICAL CARE MEDICINE LA English DT Meeting Abstract CT International Conference of the American-Thoracic-Society (ATS) CY MAY 13-18, 2016 CL San Francisco, CA SP Amer Thorac Soc C1 [Clair, G.; Piehowski, P.; Corley, R.; Ansong, C.] Pacific Northwest Natl Lab, Richland, WA USA. [Nicola, T.; Ambalavanan, N.] Univ Alabama Birmingham, Birmingham, AL USA. [Kitzmiller, J. A.] Cincinnati Childrens Hosp Med Ctr, Cincinnati, OH 45229 USA. [Carson, J.] Texas Adv Comp Ctr, Austin, TX USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER THORACIC SOC PI NEW YORK PA 25 BROADWAY, 18 FL, NEW YORK, NY 10004 USA SN 1073-449X EI 1535-4970 J9 AM J RESP CRIT CARE JI Am. J. Respir. Crit. Care Med. PY 2016 VL 193 MA A4076 PG 1 WC Critical Care Medicine; Respiratory System SC General & Internal Medicine; Respiratory System GA EG0VE UT WOS:000390749603459 ER PT J AU Mayhew, MB Sales, A Greene, JD Baker, JM Santucci, A Escobar, GJ Liu, V Wasson, T AF Mayhew, M. B. Sales, A. Greene, J. D. Baker, J. M. Santucci, A. Escobar, G. J. Liu, V. Wasson, T. TI Identifying Time-Dependent Mortality Signatures In Cases Of Suspected Infection Using Scalable Predictive Models SO AMERICAN JOURNAL OF RESPIRATORY AND CRITICAL CARE MEDICINE LA English DT Meeting Abstract CT International Conference of the American-Thoracic-Society (ATS) CY MAY 13-18, 2016 CL San Francisco, CA SP Amer Thorac Soc C1 [Mayhew, M. B.; Sales, A.; Santucci, A.; Wasson, T.] Lawrence Livermore Natl Lab, Livermore, CA USA. [Greene, J. D.; Baker, J. M.; Escobar, G. J.; Liu, V.] Kaiser Permanente, Oakland, CA USA. EM mayhew5@llnl.gov NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER THORACIC SOC PI NEW YORK PA 25 BROADWAY, 18 FL, NEW YORK, NY 10004 USA SN 1073-449X EI 1535-4970 J9 AM J RESP CRIT CARE JI Am. J. Respir. Crit. Care Med. PY 2016 VL 193 MA A2714 PG 1 WC Critical Care Medicine; Respiratory System SC General & Internal Medicine; Respiratory System GA EG0VE UT WOS:000390749601854 ER PT J AU Misra, RS Xu, Y Bhattacharya, S Solleti, SK Holden-Wiltse, J Clair, G Ansong, C Mariani, TJ Whitsett, JA Pryhuber, GS AF Misra, R. S. Xu, Y. Bhattacharya, S. Solleti, S. K. Holden-Wiltse, J. Clair, G. Ansong, C. Mariani, T. J. Whitsett, J. A. Pryhuber, G. S. CA LungMAP Consortium Investigators TI High Resolution Analysis Of Cells Isolated From Developing Human Lung SO AMERICAN JOURNAL OF RESPIRATORY AND CRITICAL CARE MEDICINE LA English DT Meeting Abstract CT International Conference of the American-Thoracic-Society (ATS) CY MAY 13-18, 2016 CL San Francisco, CA SP Amer Thorac Soc C1 [Misra, R. S.; Bhattacharya, S.; Solleti, S. K.; Mariani, T. J.; Pryhuber, G. S.] Univ Rochester, Med Ctr, Rochester, NY 14642 USA. [Xu, Y.; Whitsett, J. A.] Cincinnati Childrens Hosp Med Ctr, Cincinnati, OH 45229 USA. [Holden-Wiltse, J.] Univ Rochester, Rochester, NY USA. [Clair, G.; Ansong, C.] Pacific Northwest Natl Lab, Richland, WA USA. NR 0 TC 0 Z9 0 U1 0 U2 0 PU AMER THORACIC SOC PI NEW YORK PA 25 BROADWAY, 18 FL, NEW YORK, NY 10004 USA SN 1073-449X EI 1535-4970 J9 AM J RESP CRIT CARE JI Am. J. Respir. Crit. Care Med. PY 2016 VL 193 MA A5943 PG 1 WC Critical Care Medicine; Respiratory System SC General & Internal Medicine; Respiratory System GA EG0VE UT WOS:000390749605604 ER PT J AU Sales, A Mayhew, MB Greene, JD Baker, JM Santucci, A Escobar, GJ Wasson, T Liu, V AF Sales, A. Mayhew, M. B. Greene, J. D. Baker, J. M. Santucci, A. Escobar, G. J. Wasson, T. Liu, V. TI Modeling Patient Subpopulations Improves Sepsis Mortality Prediction SO AMERICAN JOURNAL OF RESPIRATORY AND CRITICAL CARE MEDICINE LA English DT Meeting Abstract CT International Conference of the American-Thoracic-Society (ATS) CY MAY 13-18, 2016 CL San Francisco, CA SP Amer Thorac Soc C1 [Sales, A.; Mayhew, M. B.; Santucci, A.; Wasson, T.] Lawrence Livermore Natl Lab, Livermore, CA USA. [Greene, J. D.; Baker, J. M.; Escobar, G. J.; Liu, V.] Kaiser Permanente Div Res, Oakland, CA USA. EM apsales@llnl.gov NR 0 TC 0 Z9 0 U1 1 U2 1 PU AMER THORACIC SOC PI NEW YORK PA 25 BROADWAY, 18 FL, NEW YORK, NY 10004 USA SN 1073-449X EI 1535-4970 J9 AM J RESP CRIT CARE JI Am. J. Respir. Crit. Care Med. PY 2016 VL 193 MA A6149 PG 1 WC Critical Care Medicine; Respiratory System SC General & Internal Medicine; Respiratory System GA EG0VE UT WOS:000390749605809 ER PT J AU Sarks, C Bals, BD Wynn, J Teymouri, F Schwegmann, S Sanders, K Jin, M Balan, V Dale, BE AF Sarks, Cory Bals, Bryan D. Wynn, Jim Teymouri, Farzaneh Schwegmann, Stefan Sanders, Karyn Jin, Mingjie Balan, Venkatesh Dale, Bruce E. TI Scaling up and benchmarking of ethanol production from pelletized pilot scale AFEX treated corn stover using Zymomonas mobilis 8b SO BIOFUELS-UK LA English DT Article DE Pelletization; commercialization; AFEX; hydrolysis; seed train ID AMMONIA FIBER EXPANSION; DILUTE-ACID; ENZYMATIC-HYDROLYSIS; PRETREATMENT; BIOMASS; CONVERSION AB This report outlines the recent scale-up of AFEX pretreatment from the laboratory to pilot scale. Sugar yields were improved by 19 and 15% for glucose and xylose, respectively. Further improvement was achieved when scaling up the hydrolysis and fermentation of AFEX-treated corn stover to 2500 L working volume. Benchmarking was performed using CTec 3 and HTec 3 enzymes along with Zymomonas mobilis 8b. Subsequently, the seed train was modified to use a hydrolysate-based medium as a replacement for pure sugars and nutrients. Fermentation performance was comparable following this change. Economic analysis showed a 19% reduction in MESP for the new process over the previous benchmark process. C1 [Sarks, Cory; Jin, Mingjie; Balan, Venkatesh; Dale, Bruce E.] Michigan State Univ, Biomass Convers Res Lab BCRL, Dept Chem Engn & Mat Sci, 3815 Technol Blvd, Lansing, MI 48910 USA. [Sarks, Cory; Jin, Mingjie; Balan, Venkatesh; Dale, Bruce E.] Michigan State Univ, DOE Great Lakes Bioenergy Res Ctr GLBRC, E Lansing, MI 48824 USA. [Bals, Bryan D.; Wynn, Jim; Teymouri, Farzaneh; Schwegmann, Stefan; Sanders, Karyn] MBI, 3815 Technol Blvd, Lansing, MI 48910 USA. RP Bals, BD (reprint author), MBI, 3815 Technol Blvd, Lansing, MI 48910 USA. EM Bals@mbi.org OI Jin, Mingjie/0000-0002-9493-305X FU Office of Science [DE-FC02-07ER64494]; 21st Century Jobs Trust Fund [48166]; U.S. Department of Energy [DE-EE0005071] FX Office of Science [DE-FC02-07ER64494]; 21st Century Jobs Trust Fund [48166]; U.S. Department of Energy [DE-EE0005071] NR 26 TC 2 Z9 2 U1 2 U2 2 PU TAYLOR & FRANCIS LTD PI ABINGDON PA 2-4 PARK SQUARE, MILTON PARK, ABINGDON OR14 4RN, OXON, ENGLAND SN 1759-7269 EI 1759-7277 J9 BIOFUELS-UK JI Biofuels-UK PY 2016 VL 7 IS 3 BP 253 EP 262 DI 10.1080/17597269.2015.1132368 PG 10 WC Energy & Fuels SC Energy & Fuels GA EG2OM UT WOS:000390883000006 ER PT J AU Blanchard, JW Budker, D AF Blanchard, John W. Budker, Dmitry TI Zero- to Ultralow-field NMR SO EMAGRES LA English DT Article DE ZULF NMR; zero-field NMR; field-cycling NMR; hyperpolarization; PHIP; spin-spin coupling; J-coupling; J-spectroscopy; atomic magnetometry; alkali vapor cell magnetometry ID NUCLEAR-MAGNETIC-RESONANCE; ATOMIC MAGNETOMETER; SPIN COUPLINGS; TIME-REVERSAL; POLARIZATION; SPECTROSCOPY; SYSTEMS; MRI; PARAHYDROGEN; ENHANCEMENT AB This article presents the basic principles and methodology used in modern implementations of zero-to ultralow-field NMR (ZULF NMR), with emphasis on the case where spin evolution is detected directly in the ZULF environment. In contrast to conventional high-field NMR, ZULF NMR allows for measurement of spin-spin interactions 'in their natural environment' free of truncation by dominant coupling to applied magnetic fields. However, the absence of a large applied magnetic field means that spin precession frequencies and equilibrium spin polarization-related to the sensitivity of inductive detection and to the magnitude of the measurable magnetization, respectively-are dramatically lower than in the high-field case. ZULF NMR thus requires the use of alternative detectors such as atomic magnetometers, along with the production of nonequilibrium spin polarization as prepared by, for example, prepolarization in a permanent magnet or parahydrogen-induced polarization. Nevertheless, ZULF NMR permits particularly high-resolution measurement of spin-spin couplings due to the high absolute magnetic field homogeneity and the absence of certain relaxation pathways such as chemical shift anisotropy or susceptibility-induced gradients. Furthermore, ZULF NMR is capable of directly detecting spin interactions that do not commute with the Zeeman Hamiltonian and are thus unobservable with high-field NMR. C1 [Blanchard, John W.; Budker, Dmitry] Helmholtz Inst Mainz, Mainz, Germany. [Blanchard, John W.] Univ Calif Berkeley, Berkeley, CA 94720 USA. [Budker, Dmitry] Univ Calif Berkeley, Grad Sch, Berkeley, CA 94720 USA. [Blanchard, John W.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. [Budker, Dmitry] Lawrence Berkeley Natl Lab, Div Nucl Sci, Berkeley, CA USA. [Budker, Dmitry] Johannes Gutenberg Univ Mainz, Helmholtz Inst, Mainz, Germany. RP Blanchard, JW (reprint author), Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. OI Blanchard, John/0000-0002-1621-6637 FU U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering [DE-AC02-05CH11231]; National Science Foundation [CHE-1308381, DGE-1106400] FX The authors are deeply grateful to their colleagues for collaboration on ZULF NMR and particularly to Prof. Alexander Pines for many years of mentorship and support. This work was supported by the U.S. Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering under contract no. DE-AC02-05CH11231 and by the National Science Foundation under award no. CHE-1308381. J.W.B. was also supported by a National Science Foundation Graduate Research Fellowship under grant no. DGE-1106400. NR 76 TC 0 Z9 0 U1 5 U2 5 PU WILEY-BLACKWELL PI HOBOKEN PA 111 RIVER ST, HOBOKEN 07030-5774, NJ USA SN 2055-6101 J9 EMAGRES JI eMagRes PY 2016 VL 5 IS 3 BP 1395 EP 1409 DI 10.1002/9780470034590.emrstm1369 PG 15 WC Spectroscopy SC Spectroscopy GA EG3BA UT WOS:000390917400003 ER PT J AU Furukawa, Y AF Furukawa, Yuji TI Review of NMR studies of nanoscale molecular magnets composed of geometrically frustrated antiferromagnetic triangles SO INTERNATIONAL JOURNAL OF NANOTECHNOLOGY LA English DT Article DE frustrated spin systems; antiferromagnetic traingles; nanomagnets; nuclear magnetic resonance; nuclear spin lattice relaxation rates; spin dynamics ID QUANTUM SPIN LIQUID; LATTICE ANTIFERROMAGNET; TRIANGULAR-LATTICE; CLUSTER V-15; STATE; MAGNETIZATION; EXCITATIONS; TRANSITIONS; DYNAMICS; DISORDER AB This article presents a comprehensive review of nuclear magnetic resonance (NMR) studies performed on three nanoscale molecular magnets with different novel configurations of geometrically frustrated antiferromagnetic (AFM) triangles: (1) the isolated single AFM triangle K-6[V15As6O42(H2O)]center dot 8H(2)O (in short V15), (2) the spin ball [Mo72Fe30O252(Mo2O7(H2O)) 2(Mo2O8H2(H2O)) (CH3COO)(12) (H2O)(91)]center dot 150H(2)O (in short Fe30 spin ball), and (3) the twisted triangular spin tube [(CuCl(2)tachH)(3)Cl]Cl-2 (in short Cu3 spin tube). In V15t, from V-51 NMR spectra, the local spin configurations were directly determined in both the nonfrustrated total spin S-T = 3/2 state at higher magnetic fields (H >= 2.7 T) and the two nearly degenerate S-T = 1/2 ground states at lower magnetic fields (H <= 2.7 T). The dynamical magnetic properties of V15 were investigated by proton spin-lattice relaxation rate (1/T-1) measurements. In the S-T = 3/2 state, 1/T1 shows thermally activated behaviour as a function of temperature. On the other hand, the temperature independent behaviour of 1/T-1 at very low temperatures is observed in the frustrated S-T = 1/2 ground state. Possible origins for the peculiar behaviour of 1/T-1 will be discussed in terms of magnetic fluctuations due to spin frustrations. In Fe30, static and dynamical properties of Fe3+ (s = 5/2) have been investigated by proton NMR spectra and 1/T-1 measurements. From the temperature dependence of 1/T-1, the fluctuation frequency of the Fe3+ spins is found to decrease with decreasing temperature, indicating spin freezing at low temperatures. The spin freezing is also evidenced by the observation of a sudden broadening of H-1 NMR spectra below 0.6 K. Finally, H-1 NMR data in Cu3 will be described. An observation of magnetic broadening of H-1 NMR spectra at low temperatures below 1 K directly revealed a gapless ground state. The 1/T-1 measurements revealed a usual slow spin dynamics in the Cu3 spin tube. C1 [Furukawa, Yuji] Iowa State Univ, Ames Lab, Ames, IA 50014 USA. [Furukawa, Yuji] Iowa State Univ, Dept Phys & Astron, Ames, IA 50014 USA. RP Furukawa, Y (reprint author), Iowa State Univ, Ames Lab, Ames, IA 50014 USA.; Furukawa, Y (reprint author), Iowa State Univ, Dept Phys & Astron, Ames, IA 50014 USA. EM furukawa@ameslab.gov NR 82 TC 0 Z9 0 U1 1 U2 1 PU INDERSCIENCE ENTERPRISES LTD PI GENEVA PA WORLD TRADE CENTER BLDG, 29 ROUTE DE PRE-BOIS, CASE POSTALE 856, CH-1215 GENEVA, SWITZERLAND SN 1475-7435 EI 1741-8151 J9 INT J NANOTECHNOL JI Int. J. Nanotechnol. PY 2016 VL 13 IS 10-12 SI SI BP 845 EP 869 DI 10.1504/IJNT.2016.080351 PG 25 WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Science & Technology - Other Topics; Materials Science GA EG4ZB UT WOS:000391051500013 ER PT J AU Diachenko, L Minov, E Ostapov, S Fochuk, P Khalavka, Y Bolotnikov, A James, RB AF Diachenko, L. Minov, E. Ostapov, S. Fochuk, P. Khalavka, Yu. Bolotnikov, A. James, R. B. TI New Computer System for Recognizing Micro- and Nano-Sized Objects in Semiconductors and Colloidal Solutions SO JOURNAL OF NANO- AND ELECTRONIC PHYSICS LA English DT Article DE Optical defect recognition; Nano-tracking analysis; Computer vision; Growth defects; Software developing ID INCLUSIONS; (CDZN)TE; TRACKING; NOISE AB In this paper it is describe a new approach developed for recognizing micro- and nano-sized objects and a method for quantitative analysis of these objects. For this purpose was developed the automated systems that can simplify and accelerate the process of nanoparticle tracks analysis under the microscope whereby engineers and scientists are able to recognize the structures of defects in semiconductor wafers, along with nanoparticles and other microscopic objects. This capability is important to both select appropriate crystals and also to apply the data to improve the production process. C1 [Diachenko, L.; Minov, E.; Ostapov, S.; Fochuk, P.; Khalavka, Yu.] Chernivtsi Natl Univ, Chernovtsy, Ukraine. [Bolotnikov, A.; James, R. B.] Brookhaven Natl Lab, Upton, NY 11973 USA. RP Diachenko, L (reprint author), Chernivtsi Natl Univ, Chernovtsy, Ukraine. FU Ministry of Education and Science of Ukraine [0115U003240]; U.S. Department of Energy NNSA Defense Nuclear Nonproliferation RD FX This work was performed under the project "Development of the software and hardware systems for nano- and microscopic parameters research in colloid solutions and solids" (0115U003240) with the financial support of Ministry of Education and Science of Ukraine. Two of us received partial support from U.S. Department of Energy NNSA Defense Nuclear Nonproliferation R&D. NR 17 TC 0 Z9 0 U1 0 U2 0 PU SUMY STATE UNIV, DEPT MARKETING & MIA PI SUMY PA RYMSKIY-KORSAKOV ST 2, SUMY, 40007, UKRAINE SN 2077-6772 EI 2306-4277 J9 J NANO ELECTRON PHYS JI J. Nano Electron. Phys. PY 2016 VL 8 IS 4 AR 04060 DI 10.21272/jnep.8(4(2)).04060 PG 9 WC Nanoscience & Nanotechnology SC Science & Technology - Other Topics GA EG9DR UT WOS:000391358800060 ER PT J AU Purvine, E Johnson, JR Lo, CM AF Purvine, Emilie Johnson, John R. Lo, Chaomei GP ACM TI A Graph-Based Impact Metric for Mitigating Lateral Movement Cyber Attacks SO PROCEEDINGS OF THE 2016 ACM WORKSHOP ON AUTOMATED DECISION MAKING FOR ACTIVE CYBER DEFENSE (SAFECONFIG'16) LA English DT Proceedings Paper CT 9th ACM Workshop on Automated Decision Making for Active Cyber Defense (SafeConfig) CY OCT 24, 2016 CL Vienna, AUSTRIA SP Assoc Comp Machinery, ACM SIGSAC DE Cyber security; Graph; Impact metric AB Most cyber network attacks begin with an adversary gaining a foothold within the network and proceed with lateral movement until a desired goal is achieved. The mechanism by which lateral movement occurs varies but the basic signature of hopping between hosts by exploiting vulnerabilities is the same. Because of the nature of the vulnerabilities typically exploited, lateral movement is very difficult to detect and defend against. In this paper we define a dynamic reach ability graph model of the network to discover possible paths that an adversary could take using different vulnerabilities, and how those paths evolve over time. We use this reachability graph to develop dynamic machine-level and network level impact scores. Lateral movement mitigation strategies which make use of our impact scores are also discussed, and we detail an example using a freely available data set. C1 [Purvine, Emilie] Pacific Northwest Natl Lab, Seattle, WA 98102 USA. [Johnson, John R.; Lo, Chaomei] Pacific Northwest Natl Lab, Richland, WA 99352 USA. RP Purvine, E (reprint author), Pacific Northwest Natl Lab, Seattle, WA 98102 USA. EM emilie.purvine@pnnl.gov; john.johnson@pnnl.gov; c.lo@pnnl.gov NR 14 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 978-1-4503-4566-8 PY 2016 BP 45 EP 52 DI 10.1145/2994475.2994476 PG 8 WC Computer Science, Theory & Methods SC Computer Science GA BG7GJ UT WOS:000391255300008 ER PT J AU Multari, NJ Singhal, A Manz, DO Cowles, R Cuellar, J Oehmen, C Shannon, G AF Multari, Nicholas J. Singhal, Anoop Manz, David O. Cowles, Robert Cuellar, Jorge Oehmen, Christopher Shannon, Gregory GP ACM TI SafeConfig'16: Testing and Evaluation for Active & Resilient Cyber Systems Panel Verification of Active and Resilient Systems: Practical or Utopian? SO PROCEEDINGS OF THE 2016 ACM WORKSHOP ON AUTOMATED DECISION MAKING FOR ACTIVE CYBER DEFENSE (SAFECONFIG'16) LA English DT Proceedings Paper CT 9th ACM Workshop on Automated Decision Making for Active Cyber Defense (SafeConfig) CY OCT 24, 2016 CL Vienna, AUSTRIA SP Assoc Comp Machinery, ACM SIGSAC DE Cyber Resilience; Testing; Validation; Active Systems; verification C1 [Multari, Nicholas J.; Manz, David O.; Oehmen, Christopher] Pacific Northwest Natl Lab, Richland, WA 99352 USA. [Singhal, Anoop] NIST, Gaithersburg, MD 20899 USA. [Cowles, Robert] BrightLite Informat Secur, Redwood City, CA USA. [Cuellar, Jorge] Siemens Corp, GE, Washington, DC USA. [Shannon, Gregory] Off Sci & Technol Policy, Washington, DC USA. RP Multari, NJ (reprint author), Pacific Northwest Natl Lab, Richland, WA 99352 USA. EM nick.multari@pnnl.gov; anoop.singhal@nist.gov; david.manz@pnnl.gov; bob.cowles@gmail.com; jorge.cuellar@siemens.com; chris.oehmen@pnnl.gov; gregory_e_shannon@ostp.eop.gov NR 0 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 978-1-4503-4566-8 PY 2016 BP 53 EP 54 DI 10.1145/2994475.2994486 PG 2 WC Computer Science, Theory & Methods SC Computer Science GA BG7GJ UT WOS:000391255300009 ER PT J AU Zaharov, V Lambertt, A Passian, A AF Zaharov, Viktor Lambertt, Angel Passian, Ali BE Callegari, C VanSinderen, M Sarigiannidis, P Samarati, P Cabello, E Lorenz, P Obaidat, MS TI Wireless Sensor Network Microcantilever Data Processing using Principal Component and Correlation Analysis SO WINSYS: PROCEEDINGS OF THE 13TH INTERNATIONAL JOINT CONFERENCE ON E-BUSINESS AND TELECOMMUNICATIONS - VOL. 6 LA English DT Proceedings Paper CT 13th International Joint Conference on e-Business and Telecommunications CY JUL 26-28, 2016 CL Lisbon, PORTUGAL DE Wireless Sensor Network; Microcantilever; Karhunen-Loeve Transform; Correlation Analysis; Data Denoising ID SPECTROSCOPY AB One of the main purpose of the wireless sensor network is an identification of unknown physical, chemical and biological agents in monitoring area. It requires the measurement of the microcantilever sensor resonance frequencies with high precision. However, resolving the weak spectral variations in dynamic response of materials that are either dominated or excited by stochastic processes remains a challenge. In this paper we present the analysis and experimental results of the resonant excitation of a microcantilever sensor system (MSS) by the ambient random fluctuations. In our analysis, the dynamic process is decomposed into the bases of orthogonal functions with random coefficients using principal component analysis (PCA) and Karhunen-Loeve theorem to obtain pertinent frequency shifts and spectral peaks. We show that using the truncated Karhunen-Loeve Transform helps significantly increase the resolution of resonance frequency peaks compared to those obtained with conventional Fourier Transform processing. C1 [Zaharov, Viktor] Polytech Univ Puerto Rico, San Juan, PR 00918 USA. [Lambertt, Angel] Univ Anahuac Norte, Huixquilucan, Edo De Mexico, Mexico. [Passian, Ali] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP Zaharov, V (reprint author), Polytech Univ Puerto Rico, San Juan, PR 00918 USA. NR 24 TC 0 Z9 0 U1 2 U2 2 PU SCITEPRESS PI SETUBAL PA AV D MANUELL, 27A 2 ESQ, SETUBAL, 2910-595, PORTUGAL BN 978-989-758-196-0 PY 2016 BP 97 EP 105 DI 10.5220/0005933200970105 PG 9 WC Computer Science, Information Systems; Telecommunications SC Computer Science; Telecommunications GA BG6ZY UT WOS:000391092100007 ER PT J AU Duan, SS Nicely, L Zhang, HB AF Duan, Sisi Nicely, Lucas Zhang, Haibin BE Pellegrini, A GkoulalasDivanis, A DiSanzo, P Avresky, DR TI Byzantine Reliable Broadcast in Sparse Networks SO 15TH IEEE INTERNATIONAL SYMPOSIUM ON NETWORK COMPUTING AND APPLICATIONS (IEEE NCA 2016) LA English DT Proceedings Paper CT 15th IEEE International Symposium on Network Computing and Applications (IEEE NCA) CY OCT 30-NOV 02, 2016 CL Cambridge, MA SP IEEE, IEEE Comp Soc Tech Comm Distributed Proc, Akamai Technologies Inc, Int Res Inst Autonom Network Comp, IEEE Comp Soc DE Byzantine broadcast; reliable broadcast; fault detection; fault tolerance; sparse networks ID ONLINE DIAGNOSIS; PROTOCOLS; RECOVERY; SYSTEMS AB Modern large-scale networks require the ability to withstand arbitrary failures (i.e., Byzantine failures). Byzantine reliable broadcast algorithms can be used to reliably disseminate information in the presence of Byzantine failures. We design a novel Byzantine reliable broadcast protocol for loosely connected and synchronous networks. While previous such protocols all assume correct senders, our protocol is the first to handle Byzantine senders. To achieve this goal, we have developed new techniques for fault detection and fault tolerance. Our protocol is efficient, and under normal circumstances, no expensive public-key cryptographic operations are used. We implement and evaluate our protocol, demonstrating that our protocol has high throughput and is superior to the existing protocols in uncivil executions. C1 [Duan, Sisi] Oak Ridge Natl Lab, Oak Ridge, TN 37830 USA. [Nicely, Lucas] Univ Tennessee, Knoxville, TN 37996 USA. [Zhang, Haibin] Univ Connecticut, Storrs, CT 06269 USA. RP Duan, SS (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37830 USA. EM duans@ornl.gov; lnicely@vols.utk.edu; haibin.zhang@uconn.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 978-1-5090-3216-7 PY 2016 BP 175 EP 182 PG 8 WC Computer Science, Information Systems; Computer Science, Software Engineering SC Computer Science GA BG6NZ UT WOS:000390674600032 ER PT J AU Duan, S Li, Y Levitt, K AF Duan, Sisi Li, Yun Levitt, Karl BE Pellegrini, A GkoulalasDivanis, A DiSanzo, P Avresky, DR TI Cost Sensitive Moving Target Consensus SO 15TH IEEE INTERNATIONAL SYMPOSIUM ON NETWORK COMPUTING AND APPLICATIONS (IEEE NCA 2016) LA English DT Proceedings Paper CT 15th IEEE International Symposium on Network Computing and Applications (IEEE NCA) CY OCT 30-NOV 02, 2016 CL Cambridge, MA SP IEEE, IEEE Comp Soc Tech Comm Distributed Proc, Akamai Technologies Inc, Int Res Inst Autonom Network Comp, IEEE Comp Soc DE Consensus; state machine replication; crash fault tolerance; Byzantine fault tolerance; moving target defense AB Consensus is a fundamental approach to implementing fault-tolerant services through replication. It is well known that there exists a tradeoff between the cost and the resilience. For instance, Crash Fault Tolerant (CFT) protocols have a low cost but can only handle crash failures while Byzantine Fault Tolerant (BFT) protocols handle arbitrary failures but have a higher cost. Hybrid protocols enjoy the benefits of both high performance without failures and high resiliency under failures by switching among different subprotocols. However, it is challenging to determine which subprotocols should be used. We propose a moving target approach to switch among protocols according to the existing system and network vulnerability. At the core of our approach is a formalized cost model that evaluates the vulnerability and performance of consensus protocols based on real-time Intrusion Detection System (IDS) signals. Based on the evaluation results, we demonstrate that a safe, cheap, and unpredictable protocol is always used and a high IDS error rate can be tolerated. C1 [Duan, Sisi] Oak Ridge Natl Lab, Oak Ridge, TN 37830 USA. [Li, Yun; Levitt, Karl] Univ Calif Davis, Davis, CA 95616 USA. RP Duan, SS (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37830 USA. EM duans@ornl.gov; yunli@ucdavis.edu; levitt@cs.ucdavis.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 978-1-5090-3216-7 PY 2016 BP 272 EP 281 PG 10 WC Computer Science, Information Systems; Computer Science, Software Engineering SC Computer Science GA BG6NZ UT WOS:000390674600048 ER PT S AU Moreno, G Bennion, K King, C Narumanchi, S AF Moreno, Gilberto Bennion, Kevin King, Charles Narumanchi, Sreekant GP IEEE TI Evaluation of Performance and Opportunities for Improvements in Automotive Power Electronics Systems SO 2016 15TH IEEE INTERSOCIETY CONFERENCE ON THERMAL AND THERMOMECHANICAL PHENOMENA IN ELECTRONIC SYSTEMS (ITHERM) SE Intersociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems LA English DT Proceedings Paper CT 15th IEEE Intersociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems (ITherm) CY MAY 31-JUN 03, 2016 CL Las Vegas, NV SP IEEE, IEEE Components Packaging & Mfg Technol Soc DE automotive; inverter; power electronics; thermal management AB Thermal management strategies for automotive power electronic systems have evolved over time to reduce system cost and to improve reliability and thermal performance. In this study, we characterized the power electronic thermal management systems of two electric-drive vehicles-the 2012 Nissan LEAF and 2014 Honda Accord Hybrid. Tests were conducted to measure the insulated-gate bipolar transistor-to-coolant thermal resistances for both steady-state and transient conditions at various coolant flow rates. Water-ethylene glycol at a temperature of 65 degrees C was used as the coolant for these experiments. Computational fluid dynamics and finite element analysis models of the vehicle's power electronics thermal management system were then created and validated using experimentally obtained results. Results indicate that the Accord module provides lower steady-state thermal resistance as compared with the LEAF module. However, the LEAF design may provide improved performance in transient conditions and may have cost benefits. C1 [Moreno, Gilberto; Bennion, Kevin; King, Charles; Narumanchi, Sreekant] Natl Renewable Energy Lab, 15013 Denver West Pkwy, Golden, CO 80401 USA. RP Moreno, G (reprint author), Natl Renewable Energy Lab, 15013 Denver West Pkwy, Golden, CO 80401 USA. EM gilbert.moreno@nrel.gov NR 9 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 1087-9870 BN 978-1-4673-8121-5 J9 INTERSOC C THERMAL T PY 2016 BP 185 EP 192 PG 8 WC Engineering, Electrical & Electronic; Engineering, Mechanical SC Engineering GA BG6KY UT WOS:000390436000029 ER PT S AU Moore, DA Slaby, M Cader, T Regimbal, K AF Moore, David A. Slaby, Matt Cader, Tahir Regimbal, Kevin GP IEEE TI Hybrid Warm Water Cooled Supercomputing System SO 2016 15TH IEEE INTERSOCIETY CONFERENCE ON THERMAL AND THERMOMECHANICAL PHENOMENA IN ELECTRONIC SYSTEMS (ITHERM) SE Intersociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems LA English DT Proceedings Paper CT 15th IEEE Intersociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems (ITherm) CY MAY 31-JUN 03, 2016 CL Las Vegas, NV SP IEEE, IEEE Components Packaging & Mfg Technol Soc DE Data center; High Performance Computing; Liquid Cooling; Dry Disconnect; Chiller-less; PUE; ERE AB The National Renewable Energy Laboratory (NREL) has implemented a state-of-the-art facility which tightly integrates campus and datacenter thermal management and allows for a chiller-less system with substantially lower capital and operating expenses than a traditional data center. To further lower these expenses, NREL recovers waste heat for use in climate control of offices and laboratories co-located with its data center. The NREL data center houses a liquid cooled High Performance Computing (HPC) system and supporting air cooled computing equipment collectively known as Peregrine. The energy efficiency of NREL's facility is explored using data acquired during facility operation. The facility achieved an average Power Usage Effectiveness (PUE) of 1.05 over the most recent year of operation. During the study, Peregrine had a peak power consumption of approximately 900kW, while the combination of the cooling towers, pumps, and lighting/plug loads consumed an average of 25.3 kW. Since the start of operations, NREL estimates that it saves approximately $200,000 per year through the recovery of datacenter waste heat. The availability of recovered heat allowed NREL to delay startup of the campus heating boiler by approximately one month during the autumn of 2015. C1 [Moore, David A.; Slaby, Matt; Cader, Tahir] Hewlett Packard Enterprise, 11445 Compaq Ctr Dr, Houston, TX 77070 USA. [Regimbal, Kevin] Natl Renewable Energy Lab, 15013 Denver West Pkwy, Golden, CO 80401 USA. RP Moore, DA (reprint author), Hewlett Packard Enterprise, 11445 Compaq Ctr Dr, Houston, TX 77070 USA. EM dam@hpe.com; matt.slaby@hpe.com; tahir.cader@hpe.com; kevin.regimbal@nrel.gov 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 1087-9870 BN 978-1-4673-8121-5 J9 INTERSOC C THERMAL T PY 2016 BP 614 EP 618 PG 5 WC Engineering, Electrical & Electronic; Engineering, Mechanical SC Engineering GA BG6KY UT WOS:000390436000085 ER PT S AU Mitchell, R Sery, P Klitsner, T AF Mitchell, Robert Sery, Paul Klitsner, Tom GP IEEE TI Foundations for Cyber Zone Defense SO 2016 25TH INTERNATIONAL CONFERENCE ON COMPUTER COMMUNICATIONS AND NETWORKS (ICCCN) SE IEEE International Conference on Computer Communications and Networks LA English DT Proceedings Paper CT 25th International Conference on Computer Communications and Networks (ICCCN) CY AUG 01-04, 2016 CL Waikoloa, HI SP IEEE, IEEE Commun Soc AB We will introduce a new framework called cyber zone defense (CZD) that treats malware like a black box: a process we can study solely based on its internal and external communication. We can reduce the impact of malware, without regard to its functionality or even existence, by limiting only these connections. In this paper, we propose two metrics for measuring CZD effectiveness and an illustrative simulation and a closed form mathematical model that predicts these statistics. The simulation is intuitive; it allows the analyst to provision arbitrary configurations and see how changes in topology affect the efficacy of the CZD. The model provides a mathematical verification for CZD and matches the results of the simulation well. These artifacts test the feasibility of CZD while deferring implementation details. C1 [Mitchell, Robert; Sery, Paul; Klitsner, Tom] Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Mitchell, R (reprint author), Sandia Natl Labs, Albuquerque, NM 87185 USA. EM rrmitch@sandia.gov; pgsery@sandia.gov; tklitsn@sandia.gov 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 1095-2055 BN 978-1-5090-2279-3 J9 IEEE IC COMP COM NET PY 2016 PG 7 WC Computer Science, Hardware & Architecture SC Computer Science GA BG5OC UT WOS:000389589500048 ER PT S AU Shewmaker, AG Maltzahn, C Obraczka, K Brandt, S Bent, J AF Shewmaker, Andrew G. Maltzahn, Carlos Obraczka, Katia Brandt, Scott Bent, John GP IEEE TI TCP Inigo: Ambidextrous Congestion Control SO 2016 25TH INTERNATIONAL CONFERENCE ON COMPUTER COMMUNICATIONS AND NETWORKS (ICCCN) SE IEEE International Conference on Computer Communications and Networks LA English DT Proceedings Paper CT 25th International Conference on Computer Communications and Networks (ICCCN) CY AUG 01-04, 2016 CL Waikoloa, HI SP IEEE, IEEE Commun Soc ID DELAY AB No one likes waiting in traffic, whether on a road or on a computer network. Stuttering audio, slow interactive feedback, and untimely pauses in video annoy everyone and cost businesses sales and productivity. An ideal network should (1) minimize latency, (2) maximize bandwidth, (3) share resources according to a desired policy, (4) enable incremental deployment, and (5) minimize administrative overhead. Many technologies have been developed, but none yet satisfactorily-address all five goals. The best performing solutions developed so far require controlled environments where coordinated modification of multiple components in the network is possible, but they suffer poor performance in more complex scenarios. We present TCP Inigo, which uses independent delay based algorithms on the sender and receiver (i.e. ambidextrously) to satisfy all live goals. In networks with single administrative domains, like those in data centers, Inigo's fairness, bandwidth, and latency indices are up to 13x better than the best deployable solution. When deployed in a more complex environment, such as across administrative domains, Inigo possesses latency distribution tail up to 42x better. C1 [Shewmaker, Andrew G.] Los Alamos Natl Lab, Los Alamos, NM 87544 USA. [Shewmaker, Andrew G.; Maltzahn, Carlos; Obraczka, Katia; Brandt, Scott] UC Santa Cruz, Santa Cruz, CA 95064 USA. [Bent, John] Seagate Govt Solut, Herndon, VA USA. RP Shewmaker, AG (reprint author), Los Alamos Natl Lab, Los Alamos, NM 87544 USA.; Shewmaker, AG (reprint author), UC Santa Cruz, Santa Cruz, CA 95064 USA. NR 46 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 1095-2055 BN 978-1-5090-2279-3 J9 IEEE IC COMP COM NET PY 2016 PG 10 WC Computer Science, Hardware & Architecture SC Computer Science GA BG5OC UT WOS:000389589500095 ER PT S AU Yun, DQ Wu, CQ Rao, NSV Liu, Q Kettimuthu, R Jung, ES AF Yun, Daqing Wu, Chase Q. Rao, Nageswara S. V. Liu, Qiang Kettimuthu, Rajkumar Jung, Eun-Sung GP IEEE TI Profiling Optimization for Big Data Transfer Over Dedicated Channels SO 2016 25TH INTERNATIONAL CONFERENCE ON COMPUTER COMMUNICATIONS AND NETWORKS (ICCCN) SE IEEE International Conference on Computer Communications and Networks LA English DT Proceedings Paper CT 25th International Conference on Computer Communications and Networks (ICCCN) CY AUG 01-04, 2016 CL Waikoloa, HI SP IEEE, IEEE Commun Soc DE Big data transfer; stochastic approximation; profiling; dedicated channels; high-performance networks AB The transfer of big data is increasingly supported by dedicated channels in high-performance networks, where transport protocols play an important role in maximizing application-level throughput and link utilization. The performance of transport protocols largely depend on their control parameter settings, but it is prohibitively time consuming to conduct an exhaustive search in a large parameter space to find the best set of parameter values. We propose FastProf, a stochastic approximation-based transport profiler, to quickly determine the optimal operational zone of a given data transfer protocol/method over dedicated channels. We implement and test the proposed method using both emulations based on real-life performance measurements and experiments over physical connections with short (2 ms) and long (380 ms) delays. Both the emulation and experimental results show that FastProf significantly reduces the profiling overhead while achieving a comparable level of end-to-end throughput performance with the exhaustive search-based approach. C1 [Yun, Daqing; Wu, Chase Q.] New Jersey Inst Technol, Dept Comp Sci, Newark, NJ 07102 USA. [Rao, Nageswara S. V.; Liu, Qiang] Oak Ridge Natl Lab, Comp Sci & Math Div, Oak Ridge, TN 37831 USA. [Kettimuthu, Rajkumar; Jung, Eun-Sung] Argonne Natl Lab, Div Math & Comp Sci, Argonne, IL 60439 USA. RP Yun, DQ (reprint author), New Jersey Inst Technol, Dept Comp Sci, Newark, NJ 07102 USA. EM dy83@njit.edu; chase.wu@njit.edu; raons@ornl.gov; liuq1@ornl.gov; kettimut@anl.gov; esjung@anl.gov 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 1095-2055 BN 978-1-5090-2279-3 J9 IEEE IC COMP COM NET PY 2016 PG 9 WC Computer Science, Hardware & Architecture SC Computer Science GA BG5OC UT WOS:000389589500078 ER PT J AU Bedeschi, F Cenci, R Marino, P Morello, MJ Ninci, D Piucci, A Punzi, G Ristori, L Spinella, F Stracka, S Tonelli, D Walsh, J AF Bedeschi, F. Cenci, R. Marino, P. Morello, M. J. Ninci, D. Piucci, A. Punzi, G. Ristori, L. Spinella, F. Stracka, S. Tonelli, D. Walsh, J. GP IEEE TI First Results of an "Artificial Retina" Processor Prototype SO 2016 5TH INTERNATIONAL CONFERENCE ON MODERN CIRCUITS AND SYSTEMS TECHNOLOGIES (MOCAST) LA English DT Proceedings Paper CT 5th International Conference on Modern Circuits and Systems Technologies (MOCAST) CY MAY 12-14, 2016 CL Thessaloniki, GREECE SP Aristotle Univ Res Disseminat Ctr, Aristotle Univ Thessaloniki, Dept Phys, IEEE Greece Sect, Theon Sensors, European Sensor Syst, Helic, IEEE Greece CASS SSCS Chapter, TZIOAA AB We report on the performances of a prototype for a specialized processor capable of reconstructing charged-particle tracks in a realistic Large Hadron Collider (LHC) detector, at full readout speed and with sub-microsecond latency. The processor is based on an innovative pattern recognition, called "artificial retina" algorithm, inspired by the vision system of the mammals. A prototype system has been designed, simulated, and implemented on readout boards equipped with Altera Stratix III FPGA devices. This is an important step towards the realization of a real-time track reconstruction device capable of processing complex events of high-luminosity LHC experiments at 40 MHz crossing rate. C1 [Bedeschi, F.; Cenci, R.; Marino, P.; Morello, M. J.; Ninci, D.; Piucci, A.; Punzi, G.; Spinella, F.; Stracka, S.; Walsh, J.] Ist Nazl Fis Nucl, Sez Pisa, Pisa, Italy. [Ninci, D.; Piucci, A.; Punzi, G.; Stracka, S.] Univ Pisa, Pisa, Italy. [Cenci, R.; Marino, P.; Morello, M. J.] Scuola Normale Super Pisa, Pisa, Italy. [Ristori, L.] Fermilab Natl Accelerator Lab, Batavia, IL USA. [Tonelli, D.] CERN, Geneva, Switzerland. RP Bedeschi, F (reprint author), Ist Nazl Fis Nucl, Sez Pisa, Pisa, Italy. RI Stracka, Simone/M-3931-2015 OI Stracka, Simone/0000-0003-0013-4714 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 978-1-4673-9680-6 PY 2016 PG 4 WC Computer Science, Hardware & Architecture; Engineering, Electrical & Electronic SC Computer Science; Engineering GA BG6PI UT WOS:000390718600012 ER PT S AU Behboodi, S Crawford, C Djilali, N Chassin, DP AF Behboodi, Sahand Crawford, Curran Djilali, Ned Chassin, David P. GP IEEE TI Integration of Price-Driven Demand Response Using Plug-in Electric Vehicles in Smart Grids SO 2016 IEEE CANADIAN CONFERENCE ON ELECTRICAL AND COMPUTER ENGINEERING (CCECE) SE Canadian Conference on Electrical and Computer Engineering LA English DT Proceedings Paper CT IEEE Canadian Conference on Electrical and Computer Engineering (CCECE) CY MAY 14-18, 2016 CL Vancouver, CANADA SP IEEE, IEEE Vancouver Sect DE Demand response; integration; plug-in electric vehicles; renewables; smart grids ID POWER AB This paper discusses integration of plug-in electric vehicles in smart grids from different perspectives. First, in order to achieve a grid-friendly charging load profile, a strategy is proposed based on the transactive control paradigm. This charging strategy enables electric vehicle owners to participate in real-time pricing electricity markets to reduce their charging costs. Second, the impact of large-scale adoption of electric vehicles on electricity generation and inter-area flow schedules is discussed. In order to quantify potential changes, an interconnection-scale optimal scheduling problem should be solved to determine hourly tie-line flows. In the presence of price sensitive loads, the objective function of the scheduler is to maximize the total social welfare (i.e., economic surplus) rather than minimize production cost. Third, the utilization of demand response for frequency control purpose is studied. Fast-acting demand response eases the use of slow-ramping generation units, which is particularly important in the case of high penetration levels of intermittent renewable resources to maintain the real-time balance between supply and demand. The procedure described enables estimation the benefits of smart charging in terms of cost and GHG emissions reduction for different renewable portfolio policies. C1 [Behboodi, Sahand; Crawford, Curran; Djilali, Ned; Chassin, David P.] Univ Victoria, Dept Mech Engn, Victoria, BC V8W 2Y2, Canada. [Behboodi, Sahand; Crawford, Curran; Djilali, Ned; Chassin, David P.] Univ Victoria, Inst Integrated Energy Syst, Victoria, BC V8W 2Y2, Canada. [Chassin, David P.] Pacific Northwest Natl Lab, Richland, WA USA. RP Behboodi, S (reprint author), Univ Victoria, Dept Mech Engn, Victoria, BC V8W 2Y2, Canada.; Behboodi, S (reprint author), Univ Victoria, Inst Integrated Energy Syst, Victoria, BC V8W 2Y2, Canada. EM Behboodi@uvic.ca; curranc@uvic.ca; ndjilali@uvic.ca; david.chassin@pnnl.gov 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 0840-7789 BN 978-1-4673-8721-7 J9 CAN CON EL COMP EN PY 2016 PG 5 WC Computer Science, Theory & Methods; Engineering, Electrical & Electronic SC Computer Science; Engineering GA BG6QC UT WOS:000390779200227 ER PT J AU Zhang, PF Xu, RD Sun, XY Gong, DW Zhang, Y Choi, J AF Zhang, Pengfei Xu, Ruidong Sun, Xiaoyan Gong, Dunwei Zhang, Yong Choi, Jong GP IEEE TI A Synthesized Ranking-assisted NSGA-II for Interval Multi-objective Optimization SO 2016 IEEE CONGRESS ON EVOLUTIONARY COMPUTATION (CEC) SE IEEE Congress on Evolutionary Computation LA English DT Proceedings Paper CT IEEE Congress on Evolutionary Computation (CEC) held as part of IEEE World Congress on Computational Intelligence (IEEE WCCI) CY JUL 24-29, 2016 CL Vancouver, CANADA SP IEEE, IEEE Computat Intelligence Soc, Int Neural Network Soc, Evolutionary Programming Soc, IET, IEEE BigData Initiat, Gulf Univ Sci & Technol DE Multi-objective optimization; interval; evolutionary optimization; interval ranking AB Multi-objective optimization problems with interval (MOPs-I) uncertainties parameters are common in practice. Evolutionary multi-objective (EMO) algorithms are popularly employed to solve these problems due to their powerful explorations. The comparison strategies among interval objectives of MOPs-I are crucially important for obtaining a superior Pareto front when applying EMOs. By effectively combining two different intervals ranking methods together, i.e., mu and P metrics, we present an improved NSGA-II with a synthesized intervals ranking strategy for optimizing MOPs-I. The characteristics of mu and P in ranking intervals are first analyzed, and then the synthesized ranking method termed as mu circle plus P is developed to compare and select individuals within the NSGA-II framework. The proposed algorithm is experimentally validated by four MOPs-I functions and a practical problem, and the results empirically demonstrate its merits in obtaining Pareto front with outstanding convergence and spread. C1 [Zhang, Pengfei; Xu, Ruidong; Sun, Xiaoyan; Gong, Dunwei; Zhang, Yong] China Univ Min & Technol, Sch Informat & Elect Engn, Xuzhou 221008, Jiangsu, Peoples R China. [Choi, Jong] Oak Ridge Natl Lab, POB 2008, Oak Ridge, TN 37831 USA. RP Sun, XY (reprint author), China Univ Min & Technol, Sch Informat & Elect Engn, Xuzhou 221008, Jiangsu, Peoples R China. EM xysun78@hotmail.com; Choij@ornl.gov 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 978-1-5090-0622-9 J9 IEEE C EVOL COMPUTAT PY 2016 BP 861 EP 868 PG 8 WC Computer Science, Artificial Intelligence SC Computer Science GA BG6PN UT WOS:000390749101005 ER PT J AU Qiang, J Mitchell, C Qiang, A AF Qiang, Ji Mitchell, Chad Qiang, Albert GP IEEE TI Tuning of an Adaptive Unified Differential Evolution Algorithm for Global Optimization SO 2016 IEEE CONGRESS ON EVOLUTIONARY COMPUTATION (CEC) SE IEEE Congress on Evolutionary Computation LA English DT Proceedings Paper CT IEEE Congress on Evolutionary Computation (CEC) held as part of IEEE World Congress on Computational Intelligence (IEEE WCCI) CY JUL 24-29, 2016 CL Vancouver, CANADA SP IEEE, IEEE Computat Intelligence Soc, Int Neural Network Soc, Evolutionary Programming Soc, IET, IEEE BigData Initiat, Gulf Univ Sci & Technol ID PARAMETERS AB Recently, an adaptive unified differential evolution algorithm for single-objective global optimization was proposed in an internal report. Instead of the multiple mutation strategies in conventional differential evolution algorithms, this algorithm employs a single equation unifying multiple strategies into one expression. It has the virtue of mathematical simplicity and also provides users the flexibility for broader exploration of the space of mutation operators. However, the four control parameters used in the unified mutation expression might slow down the speed of convergence due to an over exploration of the search space. In this paper, we systematically studied the choice of those control parameters in the unified mutation strategy using fourteen unimodal and multimodal functions from the CEC2005 benchmark. Those numerical results suggest that the use of three control parameters in the unified mutation strategy improves the performance of the original algorithm and shows promising performance in comparison to several conventional differential evolution algorithms. C1 [Qiang, Ji; Mitchell, Chad] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. [Qiang, Albert] Campolindo High Sch, Moraga, CA USA. RP Qiang, J (reprint author), Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. EM jqiang@lbl.gov; chadmitchell@lbl.gov; albertqiang1@gmail.com 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 978-1-5090-0622-9 J9 IEEE C EVOL COMPUTAT PY 2016 BP 4061 EP 4068 PG 8 WC Computer Science, Artificial Intelligence SC Computer Science GA BG6PN UT WOS:000390749104033 ER PT S AU Kelley, J Stewart, C Tiwari, D Gupta, S AF Kelley, Jaimie Stewart, Christopher Tiwari, Devesh Gupta, Saurabh BE Kounev, S Giese, H Liu, J TI Adaptive Power Profiling for Many-Core HPC Architectures SO 2016 IEEE INTERNATIONAL CONFERENCE ON AUTONOMIC COMPUTING (ICAC) SE Proceedings of the International Conference on Autonomic Computing LA English DT Proceedings Paper CT 13th IEEE International Conference on Autonomic Computing (ICAC) CY JUL 17-22, 2016 CL Wurzburg, GERMANY SP IEEE, IEEE Comp Soc, USENIX, SPEC Res Grp, VDE, ITG, Univ Wurzburg, SAP, HUAWEI, Hewlett Packard Enterprise, IBM, Microsoft, Google, IEEE Comp Soc Tech Comm Internet AB State of the art schedulers use workload profiles to help determine which resources to allocate. Traditionally, threads execute on every available core, but increasingly, too much power is consumed by using every core. Because peak power can occur at any point in time during the workload, workloads are commonly profiled to completion multiple times in an offline architecture. In practice, this process is too time consuming for online profiling and alternate approaches are used, such as profiling for k% of the workload or predicting peak power from similar workloads. We studied the effectiveness of these methods for core scaling. Core scaling is a technique which executes threads on a subset of available cores, allowing unused cores to enter low-power operating modes. Schedulers can use core scaling to reduce peak power, but must have an accurate profile across potential settings for number of active cores in order to know when to make this decision. We devised an accurate, fast and adaptive approach to profile peak power under core scaling. Our approach uses short profiling runs to collect instantaneous power traces for a workload under each core scaling setting. The duration of profiling varies for each power trace and depends on the desired accuracy. Compared to k% profiling of peak power, our approach reduced the profiling duration by up to 93% while keeping accuracy within 3%. C1 [Kelley, Jaimie; Stewart, Christopher] Ohio State Univ, Columbus, OH 43210 USA. [Tiwari, Devesh; Gupta, Saurabh] Oak Ridge Natl Lab, Oak Ridge, TN USA. RP Kelley, J (reprint author), Ohio State Univ, Columbus, OH 43210 USA. NR 34 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 2474-0756 BN 978-1-5090-1653-2 J9 PR INT CONF AUTONOM PY 2016 BP 179 EP 188 DI 10.1109/ICAC.2016.45 PG 10 WC Computer Science, Theory & Methods SC Computer Science GA BG6OC UT WOS:000390681200024 ER PT S AU Kwon, YP Kim, H Konjevod, G McMains, S AF Kwon, Youngwook P. Kim, Hyojin Konjevod, Goran McMains, Sara GP IEEE TI DUDE (DUALITY DESCRIPTOR): A ROBUST DESCRIPTOR FOR DISPARATE IMAGES USING LINE SEGMENT DUALITY SO 2016 IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING (ICIP) SE IEEE International Conference on Image Processing ICIP LA English DT Proceedings Paper CT 23rd IEEE International Conference on Image Processing (ICIP) CY SEP 25-28, 2016 CL Phoenix, AZ SP Inst Elect & Elect Engineers, Inst Elect & Elect Engineers, Signal Proc Soc DE Image matching; multi-modal disparate images; feature detection; feature descriptor AB We present a novel descriptor algorithm (DUDE) using line/point duality and a randomization strategy that provides simple but robust, consistent feature extraction and correspondence. Using duality enables us to effectively capture a distribution of line segments, and the proposed randomization strategy improves repeatability over existing techniques by generating more line features in common between two images. We demonstrate the effectiveness of our approach using a challenging set of disparate image pairs, and show that the DUDE descriptor performs comparably to state-of-the-art methods with significantly less computation expense. C1 [Kwon, Youngwook P.; McMains, Sara] Univ Calif Berkeley, Berkeley, CA 94720 USA. [Kim, Hyojin; Konjevod, Goran] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RP Kim, H; Konjevod, G (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 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 1522-4880 BN 978-1-4673-9961-6 J9 IEEE IMAGE PROC PY 2016 BP 310 EP 314 PG 5 WC Engineering, Electrical & Electronic; Imaging Science & Photographic Technology SC Engineering; Imaging Science & Photographic Technology GA BG6QD UT WOS:000390782000062 ER PT S AU Cossairt, O He, KA Shang, RB Matsuda, N Sharma, M Huang, X Katsaggelos, A Spinoulas, L Yoo, SW AF Cossairt, Oliver He, Kuan Shang, Ruibo Matsuda, Nathan Sharma, Manoj Huang, Xiang Katsaggelos, Aggelos Spinoulas, Leonidas Yoo, Seunghwan GP IEEE TI COMPRESSIVE RECONSTRUCTION FOR 3D INCOHERENT HOLOGRAPHIC MICROSCOPY SO 2016 IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING (ICIP) SE IEEE International Conference on Image Processing ICIP LA English DT Proceedings Paper CT 23rd IEEE International Conference on Image Processing (ICIP) CY SEP 25-28, 2016 CL Phoenix, AZ SP Inst Elect & Elect Engineers, Inst Elect & Elect Engineers, Signal Proc Soc DE Compressive sensing; incoherent holography; microscopy; inverse problems ID FRESNEL HOLOGRAPHY AB Incoherent holography has recently attracted significant research interest due to its flexibility for a wide variety of light sources. In this paper, we use compressive sensing to reconstruct a three-dimensional volumetric object from its two-dimensional Fresnel incoherent correlation hologram. We show how compressed sensing enables reconstruction without out-of-focus artifacts, when compared to conventional back-propagation recovery. Finally, we analyze the reconstruction guarantees of the proposed approach both numerically and theoretically and compare that with coherent holography. C1 [Cossairt, Oliver; He, Kuan; Shang, Ruibo; Matsuda, Nathan; Sharma, Manoj; Katsaggelos, Aggelos; Spinoulas, Leonidas; Yoo, Seunghwan] Northwestern Univ, Dept Elect Engn & Comp Sci, Evanston, IL 60208 USA. [Huang, Xiang] Argonne Natl Lab, Div Math & Comp Sci, Lemont, IL 60439 USA. RP Cossairt, O (reprint author), Northwestern Univ, Dept Elect Engn & Comp Sci, Evanston, IL 60208 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 1522-4880 BN 978-1-4673-9961-6 J9 IEEE IMAGE PROC PY 2016 BP 958 EP 962 PG 5 WC Engineering, Electrical & Electronic; Imaging Science & Photographic Technology SC Engineering; Imaging Science & Photographic Technology GA BG6QD UT WOS:000390782001010 ER PT S AU Perciano, T Ushizima, DM Bethel, EW Mizrahi, YD Parkinson, D Sethian, JA AF Perciano, T. Ushizima, D. M. Bethel, E. W. Mizrahi, Y. D. Parkinson, D. Sethian, J. A. GP IEEE TI REDUCED-COMPLEXITY IMAGE SEGMENTATION UNDER PARALLEL MARKOV RANDOM FIELD FORMULATION USING GRAPH PARTITIONING SO 2016 IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING (ICIP) SE IEEE International Conference on Image Processing ICIP LA English DT Proceedings Paper CT 23rd IEEE International Conference on Image Processing (ICIP) CY SEP 25-28, 2016 CL Phoenix, AZ SP Inst Elect & Elect Engineers, Inst Elect & Elect Engineers, Signal Proc Soc DE Markov Random Fields; image segmentation; parallel parameter estimation/optimization ID MODELS AB Markov Random Field (MRF) algorithms are powerful tools in image analysis to explore contextual information of data. However, the application of these methods to large data means that alternative approaches must be found to circumvent the NP-hard complexity of the MRF optimization. We introduce a MRF-based framework that overcomes this issue by using graph partitioning. The computational complexity is decreased as the optimization/parameter estimation is executed on small subgraphs. PMRF targets 3D microCT datasets, but we include evaluation on the Berkeley Segmentation Dataset (ranking 7th place) to fully compare our method with well-known segmentation algorithms. Segmentation results on the microCT datasets achieve precision higher than 95%. C1 [Perciano, T.; Ushizima, D. M.; Bethel, E. W.; Sethian, J. A.] Lawrence Berkeley Natl Lab, Computat Res Div, Berkeley, CA 94720 USA. [Parkinson, D.] Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA USA. [Ushizima, D. M.; Sethian, J. A.] Univ Calif Berkeley, Berkeley, CA 94720 USA. [Mizrahi, Y. D.] Univ British Columbia, Dept Math, Vancouver, BC V5Z 1M9, Canada. RP Perciano, T (reprint author), Lawrence Berkeley Natl Lab, Computat Res Div, Berkeley, CA 94720 USA. 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 1522-4880 BN 978-1-4673-9961-6 J9 IEEE IMAGE PROC PY 2016 BP 1259 EP 1263 PG 5 WC Engineering, Electrical & Electronic; Imaging Science & Photographic Technology SC Engineering; Imaging Science & Photographic Technology GA BG6QD UT WOS:000390782001070 ER PT S AU Mohan, KA Xiao, XH Bouman, CA AF Mohan, K. Aditya Xiao, Xianghui Bouman, Charles A. GP IEEE TI DIRECT MODEL-BASED TOMOGRAPHIC RECONSTRUCTION OF THE COMPLEX REFRACTIVE INDEX SO 2016 IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING (ICIP) SE IEEE International Conference on Image Processing ICIP LA English DT Proceedings Paper CT 23rd IEEE International Conference on Image Processing (ICIP) CY SEP 25-28, 2016 CL Phoenix, AZ SP Inst Elect & Elect Engineers, Inst Elect & Elect Engineers, Signal Proc Soc DE Phase retrieval; phase contrast; X-ray tomography; complex refractive index; Fresnel diffraction ID PHASE RETRIEVAL; CONTRAST; IMAGE AB X-ray propagation-based phase contrast tomography (XPCT) has become popular as a method for tomographically reconstructing the complex refractive index of a material from single distance measurements. XPCT has two major advantages over traditional X-ray computed tomography (CT): It can be used at higher cone-beam magnifications, and it typically produces higher contrast. However, current XPCT reconstruction algorithms are limited to near-field diffraction, which limits both their use and the quality of reconstructions. In this paper, we present a model-based iterative reconstruction (MBIR) algorithm called complex refractive index tomographic iterative reconstruction (CRITIR). CRITIR is based on a non-linear physics based model for X-ray propagation and a prior model for the complex refractive index of the object being imaged. Unlike conventional methods, CRITIR is designed to work within and beyond the near field diffraction region. We use simulation to show that our algorithm accurately reconstructs the object while the conventional methods result in inaccurate reconstructions with blurry edges beyond the near-field region. C1 [Mohan, K. Aditya; Bouman, Charles A.] Purdue Univ, Sch Elect & Comp Engn, W Lafayette, IN 47907 USA. [Xiao, Xianghui] Argonne Natl Lab, Lemont, IL 60439 USA. RP Mohan, KA (reprint author), Purdue Univ, Sch Elect & Comp Engn, W Lafayette, IN 47907 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 1522-4880 BN 978-1-4673-9961-6 J9 IEEE IMAGE PROC PY 2016 BP 1754 EP 1758 PG 5 WC Engineering, Electrical & Electronic; Imaging Science & Photographic Technology SC Engineering; Imaging Science & Photographic Technology GA BG6QD UT WOS:000390782001168 ER PT S AU Wohlberg, B AF Wohlberg, Brendt GP IEEE TI BOUNDARY HANDLING FOR CONVOLUTIONAL SPARSE REPRESENTATIONS SO 2016 IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING (ICIP) SE IEEE International Conference on Image Processing ICIP LA English DT Proceedings Paper CT 23rd IEEE International Conference on Image Processing (ICIP) CY SEP 25-28, 2016 CL Phoenix, AZ SP Inst Elect & Elect Engineers, Inst Elect & Elect Engineers, Signal Proc Soc DE Convolutional Sparse Coding; Convolutional Dictionary Learning; Boundary Effects ID IMAGES AB Convolutional sparse representations differ from the standard form in representing the signal to be decomposed as the sum of a set of convolutions with dictionary filters instead of a linear combination of dictionary vectors. The advantage of the convolutional form is that it provides a single-valued representation optimised over an entire signal. The substantial computational cost of the convolutional sparse coding and dictionary learning problems has recently been shown to be greatly reduced by solving in the frequency domain, but the periodic boundary conditions imposed by this approach have the potential to create boundary artifacts. The present paper compares different approaches to avoiding these effects in both sparse coding and dictionary learning. C1 [Wohlberg, Brendt] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. RP Wohlberg, B (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 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 1522-4880 BN 978-1-4673-9961-6 J9 IEEE IMAGE PROC PY 2016 BP 1833 EP 1837 PG 5 WC Engineering, Electrical & Electronic; Imaging Science & Photographic Technology SC Engineering; Imaging Science & Photographic Technology GA BG6QD UT WOS:000390782001183 ER PT S AU Song, H Thiagarajan, JJ Ratnamurthy, KN Spanias, A AF Song, Huan Thiagarajan, Jayaraman J. Ratnamurthy, Karthikeyan Natesan Spanias, Andreas GP IEEE TI AUTO-CONTEXT MODELING USING MULTIPLE KERNEL EARNING SO 2016 IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING (ICIP) SE IEEE International Conference on Image Processing ICIP LA English DT Proceedings Paper CT 23rd IEEE International Conference on Image Processing (ICIP) CY SEP 25-28, 2016 CL Phoenix, AZ SP Inst Elect & Elect Engineers, Inst Elect & Elect Engineers, Signal Proc Soc DE Feature fusion; Marginalized kernel; Multiple kernel learning; Image classification AB In complex visual recognition systems, feature fusion has become crucial to discriminate between a large number of classes. In particular, fusing high-level context information with image appearance models can be effective in object/scene recognition. To this end, we develop an auto context modeling approach under the RKHS (Reproducing Kernel Hilbert Space) setting, wherein a series of supervised learners are used to approximate the context model. By posing the problem of fusing the context and appearance models using multiple kernel learning, we develop a computationally tractable solution to this challenging problem. Ferthermore, we propose to use the marginal probabilities from a kernel SVM classifier to construct the auto-Context kernel. In addition to providing better regularization to the learning problem, our approach leads to improved recognition performance in comparison to using only the image features. C1 [Song, Huan; Spanias, Andreas] Arizona State Univ, SenSIP Ctr, Sch ECEE, Tempe, AZ 85287 USA. [Thiagarajan, Jayaraman J.] Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA USA. [Ratnamurthy, Karthikeyan Natesan] IBM TJ Watson Res Ctr, 1101 Kitchawan Rd, Yorktown Hts, NY 10598 USA. RP Ratnamurthy, KN (reprint author), IBM TJ Watson Res Ctr, 1101 Kitchawan Rd, Yorktown Hts, NY 10598 USA. NR 21 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 1522-4880 BN 978-1-4673-9961-6 J9 IEEE IMAGE PROC PY 2016 BP 1868 EP 1872 PG 5 WC Engineering, Electrical & Electronic; Imaging Science & Photographic Technology SC Engineering; Imaging Science & Photographic Technology GA BG6QD UT WOS:000390782001190 ER PT S AU Mayhew, MB Chen, B Ni, KS AF Mayhew, Michael B. Chen, Barry Ni, Karl S. GP IEEE TI ASSESSING SEMANTIC INFORMATION IN CONVOLUTIONAL NEURAL NETWORK REPRESENTATIONS OF IMAGES VIA IMAGE ANNOTATION SO 2016 IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING (ICIP) SE IEEE International Conference on Image Processing ICIP LA English DT Proceedings Paper CT 23rd IEEE International Conference on Image Processing (ICIP) CY SEP 25-28, 2016 CL Phoenix, AZ SP Inst Elect & Elect Engineers, Inst Elect & Elect Engineers, Signal Proc Soc DE deep learning; image annotation; feature representations AB Image annotation, or prediction of multiple tags for an image, is a challenging task. Most current algorithms are based on large sets of handcrafted features. Deep convolutional neural networks have recently outperformed humans in image classification, and these networks can be used to extract features highly predictive of an image's tags. In this study, we analyze semantic information in features derived from two pre-trained deep network classifiers by evaluating their performance in nearest neighbor-based approaches to tag prediction. We generally exceed performance of the manual features when using the deep features. We also find complementary information in the manual and deep features when used in combination for image annotation. C1 [Mayhew, Michael B.; Chen, Barry] Computat Engn Div, Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Ni, Karl S.] In Q Tel, Menlo Pk, CA USA. RP Mayhew, MB (reprint author), Computat Engn Div, Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. EM mayhew5@llnl.gov; chen52@llnl.gov; kni@iqt.org 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 1522-4880 BN 978-1-4673-9961-6 J9 IEEE IMAGE PROC PY 2016 BP 2266 EP 2270 PG 5 WC Engineering, Electrical & Electronic; Imaging Science & Photographic Technology SC Engineering; Imaging Science & Photographic Technology GA BG6QD UT WOS:000390782002066 ER PT S AU Carrera, D Boracchi, G Foi, A Wohlberg, B AF Carrera, Diego Boracchi, Giacomo Foi, Alessandro Wohlberg, Brendt GP IEEE TI SCALE-INVARIANT ANOMALY DETECTION WITH MULTISCALE GROUP-SPARSE MODELS SO 2016 IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING (ICIP) SE IEEE International Conference on Image Processing ICIP LA English DT Proceedings Paper CT 23rd IEEE International Conference on Image Processing (ICIP) CY SEP 25-28, 2016 CL Phoenix, AZ SP Inst Elect & Elect Engineers, Inst Elect & Elect Engineers, Signal Proc Soc DE Anomaly detection; image analysis; sparse representations; dictionary learning; group sparsity ID NOVELTY DETECTION; REPRESENTATIONS; DICTIONARY; PURSUIT AB The automatic detection of anomalies, defined as patterns that are not encountered in representative set of normal images, is an important problem in industrial control and biomedical applications. We have shown that this problem can be successfully addressed by the sparse representation of individual image patches using a dictionary learned from a large set of patches extracted from normal images. Anomalous patches are detected as those for which the sparse representation on this dictionary exceeds sparsity or error tolerances. Unfortunately, this solution is not suitable for many real-world visual inspection-systems since it is not scale invariant: since the dictionary is learned at a single scale, patches in normal images acquired at a different magnification level might be detected as anomalous. We present an anomaly-detection algorithm that learns a dictionary that is invariant to a range of scale changes, and overcomes this limitation by use of an appropriate sparse coding stage. The algorithm was successfully tested in an industrial application by analyzing a dataset of Scanning Electron Microscope (SEM) images, which typically exhibit different magnification levels. C1 [Carrera, Diego; Foi, Alessandro] Tampere Univ Technol, Dept Signal Proc, FIN-33101 Tampere, Finland. [Carrera, Diego; Boracchi, Giacomo] Politecn Milan, Dipartimento Elettron Informaz & Bioingn, Milan, Italy. [Wohlberg, Brendt] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM USA. RP Carrera, D (reprint author), Tampere Univ Technol, Dept Signal Proc, FIN-33101 Tampere, Finland.; Carrera, D (reprint author), Politecn Milan, Dipartimento Elettron Informaz & Bioingn, Milan, Italy. NR 25 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 1522-4880 BN 978-1-4673-9961-6 J9 IEEE IMAGE PROC PY 2016 BP 3892 EP 3896 PG 5 WC Engineering, Electrical & Electronic; Imaging Science & Photographic Technology SC Engineering; Imaging Science & Photographic Technology GA BG6QD UT WOS:000390782003179 ER PT J AU Gurrala, G Dimitrovski, A Simunovic, S Sreekanth, P AF Gurrala, Gurunath Dimitrovski, Aleksandar Simunovic, Srdjan Sreekanth, Pannala GP IEEE TI Numeric Modified Adomian Decomposition Method for Power System Simulations SO 2016 IEEE INTERNATIONAL CONFERENCE ON POWER SYSTEM TECHNOLOGY (POWERCON) LA English DT Proceedings Paper CT IEEE International Conference on Power System Technology (POWERCON) CY SEP 28-OCT 01, 2016 CL Wollongong, AUSTRALIA SP IEEE DE Adomian Decomposition; power system simulations; transient stability; power system dynamics ID TRANSIENT STABILITY SIMULATION; TIME-DOMAIN SIMULATION AB This paper investigates the applicability of numeric Wazwaz El Sayed modified Adomian Decomposition Method (WES-ADM) for time domain simulation of power systems. WES-ADM is a numerical method based on a modified Adomian decomposition (ADM) technique. WES-ADM is a numerical approximation method for the solution of nonlinear ordinary differential equations. The non-linear terms in the differential equations are approximated using Adomian polynomials. In this paper WES-ADM is applied to time domain simulations of multi-machine power systems. WECC 3-generator, 9-bus system and IEEE 10-generator, 39-bus system have been used to test the applicability of the approach. Several fault scenarios have been tested. It has been found that the proposed approach is faster than the trapezoidal method with comparable accuracy. C1 [Gurrala, Gurunath] Indian Inst Sci, Dept Elect Engn, Bangalore, Karnataka, India. [Dimitrovski, Aleksandar; Simunovic, Srdjan; Sreekanth, Pannala] Oak Ridge Natl Lab, Oak Ridge, TN USA. RP Gurrala, G (reprint author), Indian Inst Sci, Dept Elect Engn, Bangalore, Karnataka, India. EM gurunath@ee.iisc.ernet.in 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 978-1-4673-8848-1 PY 2016 PG 6 WC Energy & Fuels; Engineering, Electrical & Electronic SC Energy & Fuels; Engineering GA BG6GC UT WOS:000390264300103 ER PT J AU Hernandez, J Gyuk, I Christensen, C AF Hernandez, Jacquelynne Gyuk, Imre Christensen, Cedric GP IEEE TI DOE Global Energy Storage Database - A Platform for Large Scale Data Analytics and System Performance Metrics SO 2016 IEEE INTERNATIONAL CONFERENCE ON POWER SYSTEM TECHNOLOGY (POWERCON) LA English DT Proceedings Paper CT IEEE International Conference on Power System Technology (POWERCON) CY SEP 28-OCT 01, 2016 CL Wollongong, AUSTRALIA SP IEEE DE Energy Storage; Electric Grid; Grid Storage Technology AB The U.S. Department of Energy (U.S. DOE) Global Energy Storage Database (GESDB) is an openly accessible archive of electrical energy storage projects across the electric grid infrastructure and a global repository of relevant policies. The data included in the archive has been fully validated. The GESDB represents a dynamic catalogue with a continuously updated dataset. This is essentially a global industry platform for dissemination of project and performance metrics on the growing fleet of energy storage installations. Over the last four years, the database has been utilized to help shape the development of new projects, improve existing systems and to help develop policy and regulatory framework. C1 [Hernandez, Jacquelynne] Sandia Natl Labs, Energy Storage Technol, Albuquerque, NM 87123 USA. [Gyuk, Imre] US DOE, Off Elect Delivery, Washington, DC 20585 USA. [Christensen, Cedric] Strategen Consulting, Berkeley, CA 94704 USA. RP Hernandez, J (reprint author), Sandia Natl Labs, Energy Storage Technol, Albuquerque, NM 87123 USA. EM jhernan@sandia.gov; imre.gyuk@hq.doe.gov; cchristensen@strategen.com 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 978-1-4673-8848-1 PY 2016 PG 6 WC Energy & Fuels; Engineering, Electrical & Electronic SC Energy & Fuels; Engineering GA BG6GC UT WOS:000390264300164 ER PT S AU Deka, D Backhaus, S Chertkov, M AF Deka, Deepjyoti Backhaus, Scott Chertkov, Michael GP IEEE TI Learning Topology of Distribution Grids using only Terminal Node Measurements SO 2016 IEEE INTERNATIONAL CONFERENCE ON SMART GRID COMMUNICATIONS (SMARTGRIDCOMM) SE International Conference on Smart Grid Communications LA English DT Proceedings Paper CT IEEE International Conference on Smart Grid Communications (SmartGridComm) CY NOV 06-09, 2016 CL Sydney, AUSTRALIA SP IEEE DE Distribution Networks; Power Flows; Tree learning; Voltage measurements; Missing data; Complexity AB Distribution grids include medium and low voltage lines that are involved in the delivery of electricity from substation to end-users/loads. A distribution grid is operated in a radial/tree-like structure, determined by switching on or off lines from an underling loopy graph. Due to the presence of limited real-time measurements, the critical problem of fast estimation of the radial grid structure is not straightforward. This paper presents a new learning algorithm that uses measurements only at the terminal or leaf nodes in the distribution grid to estimate its radial structure. The algorithm is based on results involving voltages of node triplets that arise due to the radial structure. The polynomial computational complexity of the algorithm is presented along with a detailed analysis of its working The most significant contribution of the approach is that it is able to learn the structure in certain cases where available measurements are confined to only half of the nodes. This represents learning under minimum permissible observability. Performance of the proposed approach in learning structure is demonstrated by experiments on test radial distribution grids. C1 [Deka, Deepjyoti; Backhaus, Scott; Chertkov, Michael] Los Alamos Natl Lab, Los Alamos, NM 87544 USA. RP Deka, D (reprint author), Los Alamos Natl Lab, Los Alamos, NM 87544 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 2373-6836 BN 978-1-5090-4075-9 J9 INT CONF SMART GRID PY 2016 PG 7 WC Computer Science, Hardware & Architecture; Telecommunications SC Computer Science; Telecommunications GA BG6OX UT WOS:000390711400034 ER PT S AU Shahsavari, A Sadeghi-Mobarakeh, A Stewart, E Mohsenian-Rad, H AF Shahsavari, Alireza Sadeghi-Mobarakeh, Ashkan Stewart, Emma Mohsenian-Rad, Hamed GP IEEE TI Distribution Grid Reliability Analysis Considering Regulation Down Load Resources Via Micro-PMU Data SO 2016 IEEE INTERNATIONAL CONFERENCE ON SMART GRID COMMUNICATIONS (SMARTGRIDCOMM) SE International Conference on Smart Grid Communications LA English DT Proceedings Paper CT IEEE International Conference on Smart Grid Communications (SmartGridComm) CY NOV 06-09, 2016 CL Sydney, AUSTRALIA SP IEEE AB There is a growing interest by power system operators to encourage load resources to offer frequency regulation. There are several studies that evaluate the system-wide benefits of such load resource participation. However, the current literature often overlooks the potential adverse impact on power distribution feeders. This paper seems to address this open problem. We focus on a scenario where load resources offer regulation down service. We start by developing a novel data-driven approach to use distribution-level. mu PMU data to analyze transient load behaviours. Subsequently, we model the aggregate load transient profile, in form of an aggregate three-phase surge current profile, that is induced on a distribution feeder once a group of loads responds to a regulation down event. The impact of delay, e.g., due to sensing, communications, and load response, is taken into consideration. Distribution grid reliability is then analyzed based on different characteristics of typical over-current protection relay devices. Both momentary and permanent reliability indices are calculated. Case studies suggest that it is possible to jeopardize power distribution grid reliability if several regulation down load resources are on the same feeder. The probability of failure depends on the distribution grid protection system and the amount and distribution of delay in the regulation aggregation system. C1 [Shahsavari, Alireza; Sadeghi-Mobarakeh, Ashkan; Mohsenian-Rad, Hamed] Univ Calif Riverside, Dept Elect & Comp Engn, Riverside, CA 92521 USA. [Stewart, Emma] Lawrence Berkeley Natl Lab, Grid Integrat Grp, Berkeley, CA USA. RP Shahsavari, A (reprint author), Univ Calif Riverside, Dept Elect & Comp Engn, Riverside, CA 92521 USA. EM ashah023@ucr.edu; asade004@ucr.edu; estewart@lbl.gov; hamed@ece.ucr.edu NR 16 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2373-6836 BN 978-1-5090-4075-9 J9 INT CONF SMART GRID PY 2016 PG 6 WC Computer Science, Hardware & Architecture; Telecommunications SC Computer Science; Telecommunications GA BG6OX UT WOS:000390711400078 ER PT S AU Xu, J Yue, M Katramatos, D Yoo, S AF Xu, Jin Yue, Meng Katramatos, Dimitri Yoo, Shinjae GP IEEE TI Spatial-Temporal Load Forecasting Using AMI Data SO 2016 IEEE INTERNATIONAL CONFERENCE ON SMART GRID COMMUNICATIONS (SMARTGRIDCOMM) SE International Conference on Smart Grid Communications LA English DT Proceedings Paper CT IEEE International Conference on Smart Grid Communications (SmartGridComm) CY NOV 06-09, 2016 CL Sydney, AUSTRALIA SP IEEE ID NEURAL-NETWORKS; ACCURACY AB One of the critical requirements in power grid operation and planning is the ability to accurately forecast expected load. This allows for a heightened enhancement in grid operations, energy management, and planning. Load forecasting is historically based on aggregated spatial and temporal consumption data; with the deployment of Advanced Metering Infrastructure (AMI) systems, it can be achieved not only at a system level but also down to the consumer level. With this new increase in data, novel approaches and methods to load forecasting at a refined level can be explored. In this paper, a novel k-nearest Vector Autoregressive framework with exogenous input is proposed to spatial-temporally model household-level electricity demand from very short-term (15 min) to mid-term (2 weeks). We processed smart meter time series and geographical data from thousands of residential and commercial households. Our systematic experimental results showed an average of 27.3% RMSE and 31.6% MAPE improvement over the baseline model on a comprehensive 4-month dataset. C1 [Xu, Jin] SUNY Stony Brook, Stony Brook, NY 11794 USA. [Yue, Meng; Katramatos, Dimitri; Yoo, Shinjae] Brookhaven Natl Lab, Upton, NY 11973 USA. RP Xu, J (reprint author), SUNY Stony Brook, Stony Brook, NY 11794 USA. EM jin.xu@stonybrook.edu; yuemeng@bnl.gov; dkat@bnl.gov; sjyoo@bnl.gov NR 21 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2373-6836 BN 978-1-5090-4075-9 J9 INT CONF SMART GRID PY 2016 PG 7 WC Computer Science, Hardware & Architecture; Telecommunications SC Computer Science; Telecommunications GA BG6OX UT WOS:000390711400101 ER PT S AU Wang, YS Zhou, Z Liu, C Botterud, A AF Wang, Yishen Zhou, Zhi Liu, Cong Botterud, Audun GP IEEE TI Evaluating Stochastic Methods in Power System Operations with Wind Power SO 2016 IEEE INTERNATIONAL ENERGY CONFERENCE (ENERGYCON) SE IEEE International Energy Conference LA English DT Proceedings Paper CT IEEE International Energy Conference (ENERGYCON) CY APR 04-08, 2016 CL Leuven, BELGIUM SP IEEE DE Electricity Markets; Stochastic Programming; Interval Programming; Dynamic Operating Reserves; Decomposition; Wind Power ID CONSTRAINED UNIT COMMITMENT; GENERATION AB Wind power is playing an increasingly important role in electricity markets. However, it's inherent variability and uncertainty cause operational challenges and costs as more operating reserves are needed to maintain system reliability. Several operational strategies have been proposed to address these challenges, including advanced probabilistic wind forecasting techniques, dynamic operating reserves, and various unit commitment (UC) and economic dispatch (ED) strategies under uncertainty. This paper presents a consistent framework to evaluate different operational strategies in power system operations with renewable energy. We use conditional Kernel Density Estimation (KDE) for probabilistic wind power forecasting. Forecast scenarios are generated considering spatio-temporal correlations, and further reduced to lower the computational burden. Scenario-based stochastic programming with different decomposition techniques and interval optimization are tested to examine economic, reliability, and computational performance compared to deterministic UC/ED benchmarks. We present numerical results for a modified IEEE-118 bus system with realistic system load and wind data. C1 [Wang, Yishen] Univ Washington, Seattle, WA 98195 USA. [Zhou, Zhi; Liu, Cong; Botterud, Audun] Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA. RP Wang, YS (reprint author), Univ Washington, Seattle, WA 98195 USA. EM ywang11@uw.edu; zzhou@anl.gov; liuc@anl.gov; abotterud@anl.gov 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 2164-4322 BN 978-1-4673-8463-6 J9 IEEE INT ENER CONF PY 2016 PG 6 WC Energy & Fuels; Engineering, Electrical & Electronic SC Energy & Fuels; Engineering GA BG6QX UT WOS:000390822900180 ER PT S AU Wang, R Masseboeuf, A Neumeyer, D Monthioux, M Lopez-Bezanilla, A Arenal, R AF Wang, R. Masseboeuf, A. Neumeyer, D. Monthioux, M. Lopez-Bezanilla, A. Arenal, R. GP IEEE TI Doped carbon nanostructure for Cold-Field Emission Guns: Structural and EELS studies SO 2016 IEEE NANOTECHNOLOGY MATERIALS AND DEVICES CONFERENCE (NMDC) SE IEEE Nanotechnology Materials and Devices Conference LA English DT Proceedings Paper CT 11th IEEE Nanotechnology Materials and Devices Conference (NMDC) CY OCT 09-12, 2016 CL Toulouse, FRANCE SP IEEE, IEEE Nanotechnol Council ID NANOTUBES; NANOTIP AB This work aims to improve the performance of carbon nanostructures for the cold field emission. In this contribution we introduce a thermal method to prepare the BN doped carbon nanotube (CNT), which is investigated with X-ray photoelectron spectroscopy (XPS), high resolution transmission electron microscope (HRTEM) and scanning TEM (STEM). A density functional theory (DFT) calculation is carried out in order to clarify the electronic property of the doped CNT. C1 [Wang, R.; Masseboeuf, A.; Neumeyer, D.; Monthioux, M.] Univ Toulouse, CEMES, CNRS, UPR 8011, F-31400 Toulouse, France. [Wang, R.; Arenal, R.] Univ Zaragoza, LMA INA, Zaragoza 50018, Spain. [Lopez-Bezanilla, A.] Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA. [Arenal, R.] Fdn ARAID, Zaragoza 500018, Spain. RP Wang, R (reprint author), Univ Toulouse, CEMES, CNRS, UPR 8011, F-31400 Toulouse, France.; Wang, R (reprint author), Univ Zaragoza, LMA INA, Zaragoza 50018, Spain. EM rongrong.wang@cemes.fr; arnal@unizar.es RI Arenal, Raul/D-2065-2009 OI Arenal, Raul/0000-0002-2071-9093 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 SN 2378-377X BN 978-1-5090-4352-1 J9 IEEE NANOTECHNOL MAT PY 2016 PG 2 WC Engineering, Electrical & Electronic; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Engineering; Science & Technology - Other Topics; Materials Science GA BG6MB UT WOS:000390580700007 ER PT J AU Chakraborty, S Nelson, A Hoke, A AF Chakraborty, Sudipta Nelson, Austin Hoke, Anderson GP IEEE TI Power Hardware-in-the-Loop Testing of Multiple Photovoltaic Inverters' Volt-var Control with Real-time Grid Model SO 2016 IEEE POWER & ENERGY SOCIETY INNOVATIVE SMART GRID TECHNOLOGIES CONFERENCE (ISGT) LA English DT Proceedings Paper CT IEEE Power-and-Energy-Society Innovative Smart Grid Technologies Conference (ISGT) CY SEP 06-09, 2016 CL Minneapolis, MN SP IEEE Power & Energy Soc DE Photovoltaic; inverters; volt-var control; power hardware-in-the-loop AB Traditional testing methods fall short in evaluating interactions between multiple smart inverters providing advanced grid support functions due to the fact that such interactions largely depend on their placements on the electric distribution systems with impedances between them. Even though significant concerns have been raised by the utilities on the effects of such interactions, little effort has been made to evaluate them. In this paper, power hardware-in-the-loop (PHIL) based testing was utilized to evaluate autonomous voltvar operations of multiple smart photovoltaic (PV) inverters connected to a simple distribution feeder model. The results provided in this paper show that depending on volt-var control (VVC) parameters and grid parameters, interaction between inverters and between the inverter and the grid is possible in some extreme cases with very high VVC slopes, fast response times and large VVC response delays. C1 [Chakraborty, Sudipta; Nelson, Austin; Hoke, Anderson] Power Syst Engn Ctr, Natl Renewable Energy Lab, Golden, CO 80401 USA. RP Chakraborty, S (reprint author), Power Syst Engn Ctr, Natl Renewable Energy Lab, Golden, CO 80401 USA. EM sudipta.chakraborty@nrel.gov 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 978-1-5090-5167-0 PY 2016 PG 5 WC Computer Science, Hardware & Architecture; Engineering, Electrical & Electronic SC Computer Science; Engineering GA BG6PB UT WOS:000390715800014 ER PT J AU Jain, R Zhang, YC Hodge, BM AF Jain, Rishabh Zhang, Yingchen Hodge, Bri-Mathias GP IEEE TI Investigating the Impact of Wind Turbines on Distribution System Stability SO 2016 IEEE POWER & ENERGY SOCIETY INNOVATIVE SMART GRID TECHNOLOGIES CONFERENCE (ISGT) LA English DT Proceedings Paper CT IEEE Power-and-Energy-Society Innovative Smart Grid Technologies Conference (ISGT) CY SEP 06-09, 2016 CL Minneapolis, MN SP IEEE Power & Energy Soc DE Wind integration; Power transients; Distributed power generation; Power system stability; Distribution Systems AB Modern wind turbines utilize power electronic converters to regulate their output and optimize their performance. Their impact on the distribution system is not as well understood as for transmission system. The novelty of this work is in studying the impact of wind turbines given its proximity to faults or severe voltage events, and the influence on system stability given its location relative to the substation (representing the conventional grid). This paper presents the frequency and voltage swing plots for various study scenarios. The responses are analyzed two fold - Steady state operation, and performance given a fault or voltage events occurs in the system. The findings are presented, with crucial differences from transmission systems highlighted. C1 [Jain, Rishabh; Zhang, Yingchen; Hodge, Bri-Mathias] Natl Renewable Energy Lab, Golden, CO 80401 USA. RP Jain, R (reprint author), Natl Renewable Energy Lab, Golden, CO 80401 USA. EM rishabh.jain@nrel.gov; yingchen.zhang@nrel.gov; bri-mathias.hodge@nrel.gov NR 9 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-5090-5167-0 PY 2016 PG 5 WC Computer Science, Hardware & Architecture; Engineering, Electrical & Electronic SC Computer Science; Engineering GA BG6PB UT WOS:000390715800057 ER PT J AU Lundstrom, B Chakraborty, S Lauss, G Brundlinger, R Conklin, R AF Lundstrom, Blake Chakraborty, Sudipta Lauss, Georg Bruendlinger, Roland Conklin, Russell GP IEEE TI Evaluation of System-Integrated Smart Grid Devices using Software- and Hardware-in-the-Loop SO 2016 IEEE POWER & ENERGY SOCIETY INNOVATIVE SMART GRID TECHNOLOGIES CONFERENCE (ISGT) LA English DT Proceedings Paper CT IEEE Power-and-Energy-Society Innovative Smart Grid Technologies Conference (ISGT) CY SEP 06-09, 2016 CL Minneapolis, MN SP IEEE Power & Energy Soc DE power hardware-in-the-loop (PHIL); controller hardware-in-the-loop (CHIL); software-in-the-loop (SIL); co-simulation; power system; smart grid device; solar power generation; integrated testing AB This paper presents a concise description of state-of-the-art real-time simulation-based testing methods and demonstrates how they can be used independently and/or in combination as an integrated development and validation approach for smart grid DERs and systems. A three-part case study demonstrating the application of this integrated approach at the different stages of development and validation of a system-integrated smart photovoltaic (PV) inverter is also presented. Laboratory testing results and perspectives from two international research laboratories are included in the case study. C1 [Lundstrom, Blake; Chakraborty, Sudipta] Natl Renewable Energy Lab, Golden, CO 80401 USA. [Lauss, Georg; Bruendlinger, Roland] Austrian Inst Technol, Vienna, Austria. [Conklin, Russell] US DOE, Washington, DC 20585 USA. RP Lundstrom, B (reprint author), Natl Renewable Energy Lab, Golden, CO 80401 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 978-1-5090-5167-0 PY 2016 PG 5 WC Computer Science, Hardware & Architecture; Engineering, Electrical & Electronic SC Computer Science; Engineering GA BG6PB UT WOS:000390715800032 ER PT J AU Nelson, A Hoke, A Miller, B Chakraborty, S Bell, F McCarty, M AF Nelson, Austin Hoke, Anderson Miller, Brian Chakraborty, Sudipta Bell, Frances McCarty, Michael GP IEEE TI Impacts of Inverter-based Advanced Grid Support Functions on Islanding Detection SO 2016 IEEE POWER & ENERGY SOCIETY INNOVATIVE SMART GRID TECHNOLOGIES CONFERENCE (ISGT) LA English DT Proceedings Paper CT IEEE Power-and-Energy-Society Innovative Smart Grid Technologies Conference (ISGT) CY SEP 06-09, 2016 CL Minneapolis, MN SP IEEE Power & Energy Soc DE Inverter; Photovoltaic; Islanding; Voltage ride-through; Frequency ride-through AB A long-standing requirement for inverters paired with distributed energy resources is that they are required to disconnect from the electrical power system (EPS) when an electrical island is formed. In recent years, advanced grid support controls have been developed for inverters to provide voltage and frequency support by integrating functions such as voltage and frequency ride-through, volt-VAr control, and frequency-Watt control. With these new capabilities integrated into the inverter, additional examination is needed to determine how voltage and frequency support will impact pre-existing inverter functions like island detection. This paper inspects how advanced inverter functions will impact its ability to detect the formation of an electrical island. Results are presented for the unintentional islanding laboratory tests of three common residential-scale photovoltaic inverters performing various combinations of grid support functions. For the inverters tested, grid support functions prolonged island disconnection times slightly; however, it was found that in all scenarios the inverters disconnected well within two seconds, the limit imposed by IEEE Std 1547-2003. C1 [Nelson, Austin; Hoke, Anderson; Miller, Brian; Chakraborty, Sudipta] Natl Renewable Energy Lab, Golden, CO 80401 USA. [Bell, Frances; McCarty, Michael] SolarCity, Grid Engn Solut, San Francisco, CA USA. RP Nelson, A (reprint author), Natl Renewable Energy Lab, Golden, CO 80401 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 BN 978-1-5090-5167-0 PY 2016 PG 5 WC Computer Science, Hardware & Architecture; Engineering, Electrical & Electronic SC Computer Science; Engineering GA BG6PB UT WOS:000390715800042 ER PT J AU Ollis, B Irminger, P Buckner, M Ray, I King, D Herron, A Xiao, BL Borges, R Starke, M Xue, YS Maccleery, B AF Ollis, Ben Irminger, Philip Buckner, Mark Ray, Ishita King, Dan Herron, Andrew Xiao, Bailu Borges, Raymond Starke, Michael Xue, Yaosuo Maccleery, Brian GP IEEE TI Software-defined Intelligent Grid Research Integration and Development Platform SO 2016 IEEE POWER & ENERGY SOCIETY INNOVATIVE SMART GRID TECHNOLOGIES CONFERENCE (ISGT) LA English DT Proceedings Paper CT IEEE Power-and-Energy-Society Innovative Smart Grid Technologies Conference (ISGT) CY SEP 06-09, 2016 CL Minneapolis, MN SP IEEE Power & Energy Soc AB A complication to control schemes is the fact that models can only represent the systems to the fidelity of the model. There is a need for hardware testing which can truly represent the dynamics of the system and the integration of the controls. A flexible and reconfigurable hardware low-power microgrid testbed platform is proposed in this paper for the verification of control schemes, protection and cyber-security. The design of multi-microgrid hardware configuration, shadow network architecture, and data collection and analytics are discussed. C1 [Ollis, Ben; Irminger, Philip; Buckner, Mark; Ray, Ishita; King, Dan; Herron, Andrew; Xiao, Bailu; Borges, Raymond; Starke, Michael; Xue, Yaosuo] Oak Ridge Natl Lab, Power & Energy Syst Grp, Oak Ridge, TN 37830 USA. [Maccleery, Brian] Natl Instruments, Clean Energy Technol, Austin, TX USA. RP Ollis, B (reprint author), Oak Ridge Natl Lab, Power & Energy Syst Grp, Oak Ridge, TN 37830 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 BN 978-1-5090-5167-0 PY 2016 PG 5 WC Computer Science, Hardware & Architecture; Engineering, Electrical & Electronic SC Computer Science; Engineering GA BG6PB UT WOS:000390715800101 ER PT J AU Palmintier, B Krishnamurthy, D Wu, HY AF Palmintier, Bryan Krishnamurthy, Dheepak Wu, Hongyu GP IEEE TI Design Flexibility for Uncertain Distributed Generation from Photovoltaics SO 2016 IEEE POWER & ENERGY SOCIETY INNOVATIVE SMART GRID TECHNOLOGIES CONFERENCE (ISGT) LA English DT Proceedings Paper CT IEEE Power-and-Energy-Society Innovative Smart Grid Technologies Conference (ISGT) CY SEP 06-09, 2016 CL Minneapolis, MN SP IEEE Power & Energy Soc DE Distribution System Planning; Flexibility in Design; Real Options; Dynamic Programming AB Uncertainty in the future adoption patterns for distributed energy resources (DERs) introduces a challenge for electric distribution system planning. This paper explores the potential for flexibility in design-also known as real optionsto identify design solutions that may never emerge when future DER patterns are treated as deterministic. A test case for storage system design with uncertain distributed generation for solar photovoltaics (DGPV) demonstrates this approach and is used to study sensitivities to a range of techno-economic assumptions. C1 [Palmintier, Bryan; Krishnamurthy, Dheepak; Wu, Hongyu] Natl Renewable Energy Lab, Golden, CO 80401 USA. RP Palmintier, B (reprint author), Natl Renewable Energy Lab, Golden, CO 80401 USA. NR 21 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-5090-5167-0 PY 2016 PG 5 WC Computer Science, Hardware & Architecture; Engineering, Electrical & Electronic SC Computer Science; Engineering GA BG6PB UT WOS:000390715800046 ER PT J AU Peppanen, J Zhang, XC Grijalva, S Reno, MJ AF Peppanen, Jouni Zhang, Xiaochen Grijalva, Santiago Reno, Matthew J. GP IEEE TI Handling Bad or Missing Smart Meter Data through Advanced Data Imputation SO 2016 IEEE POWER & ENERGY SOCIETY INNOVATIVE SMART GRID TECHNOLOGIES CONFERENCE (ISGT) LA English DT Proceedings Paper CT IEEE Power-and-Energy-Society Innovative Smart Grid Technologies Conference (ISGT) CY SEP 06-09, 2016 CL Minneapolis, MN SP IEEE Power & Energy Soc DE Data Handling; Data Preprocessing; Load Modeling; Power System Measurements; Smart Grids AB Smart meters and other the modern distribution measurement devices provide new and more data, but usually they are subject to longer delays and lower reliability than transmission system SCADA. Accurate and robust use of the modern distribution system measurements will be a cornerstone of the future advanced distribution management systems. This paper presents a novel and computationally efficient data processing method for imputing bad and missing load power measurements to create full power consumption data sets. The imputed data periods have a continuous profile with respect to the adjacent available measurements, which is a highly desirable feature for time-series (power flow) analyses. The method is shown to be superior in accuracy to a utility best practice approach. Our simulations use actual AMI data collected from 128 smart meters on the Georgia Tech campus. C1 [Peppanen, Jouni; Zhang, Xiaochen; Grijalva, Santiago] Georgia Inst Technol, Sch Elect & Comp Engn, Atlanta, GA 30332 USA. [Reno, Matthew J.] Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. RP Peppanen, J (reprint author), Georgia Inst Technol, Sch Elect & Comp Engn, Atlanta, GA 30332 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 BN 978-1-5090-5167-0 PY 2016 PG 5 WC Computer Science, Hardware & Architecture; Engineering, Electrical & Electronic SC Computer Science; Engineering GA BG6PB UT WOS:000390715800059 ER PT J AU Simpkins, T Anderson, K Cutler, D Olis, D AF Simpkins, Travis Anderson, Kate Cutler, Dylan Olis, Dan GP IEEE TI Optimal Sizing of a Solar-Plus-Storage System For Utility Bill Savings and Resiliency Benefits SO 2016 IEEE POWER & ENERGY SOCIETY INNOVATIVE SMART GRID TECHNOLOGIES CONFERENCE (ISGT) LA English DT Proceedings Paper CT IEEE Power-and-Energy-Society Innovative Smart Grid Technologies Conference (ISGT) CY SEP 06-09, 2016 CL Minneapolis, MN SP IEEE Power & Energy Soc DE Batteries; Energy storage; Mathematical programming; Microgrids; Photovoltaic systems AB Solar-plus-storage systems can achieve significant utility savings in behind-the-meter deployments in buildings, campuses, or industrial sites. Common applications include demand charge reduction, energy arbitrage, time-shifting of excess photovoltaic (PV) production, and selling ancillary services to the utility grid. These systems can also offer some energy resiliency during grid outages. It is often difficult to quantify the amount of resiliency that these systems can provide, however, and this benefit is often undervalued or omitted during the design process. We propose a method for estimating the resiliency that a solar-plus-storage system can provide at a given location. We then present an optimization model that can optimally size the system components to minimize the lifecycle cost of electricity to the site, including the costs incurred during grid outages. The results show that including the value of resiliency during the feasibility stage can result in larger systems and increased resiliency. C1 [Simpkins, Travis; Anderson, Kate; Cutler, Dylan; Olis, Dan] Natl Renewable Energy Lab, Golden, CO 80401 USA. RP Simpkins, T (reprint author), Natl Renewable Energy Lab, Golden, CO 80401 USA. EM travis.simpkins@nrel.gov 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 978-1-5090-5167-0 PY 2016 PG 5 WC Computer Science, Hardware & Architecture; Engineering, Electrical & Electronic SC Computer Science; Engineering GA BG6PB UT WOS:000390715800081 ER PT J AU Starke, M Xiao, BL Liu, GD Ollis, B Irminger, P King, D Herron, A Xue, YS AF Starke, Michael Xiao, Bailu Liu, Guodong Ollis, Ben Irminger, Philip King, Dan Herron, Andrew Xue, Yaosuo GP IEEE TI Architecture and Implementation of Microgrid Controller SO 2016 IEEE POWER & ENERGY SOCIETY INNOVATIVE SMART GRID TECHNOLOGIES CONFERENCE (ISGT) LA English DT Proceedings Paper CT IEEE Power-and-Energy-Society Innovative Smart Grid Technologies Conference (ISGT) CY SEP 06-09, 2016 CL Minneapolis, MN SP IEEE Power & Energy Soc AB A microgrid controller, the Complete System-level Efficient and Interoperable Solution for Microgrid Integrated Controls (CSEISMIC), is presented in this paper. The architecture and major components of the microgrid are introduced, followed by a discussion of the functions and implementation of the microgrid controller, including the Energy Management System (EMS) and Supervisory Control and Data Acquisition (SCADA). Testing results are provided to validate and demonstrate the effectiveness of the proposed microgrid controller. C1 [Starke, Michael; Xiao, Bailu; Liu, Guodong; Ollis, Ben; Irminger, Philip; King, Dan; Herron, Andrew; Xue, Yaosuo] Oak Ridge Natl Lab, Power & Energy Syst Grp, Oak Ridge, TN 37831 USA. RP Starke, M (reprint author), Oak Ridge Natl Lab, Power & Energy Syst Grp, Oak Ridge, TN 37831 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 978-1-5090-5167-0 PY 2016 PG 5 WC Computer Science, Hardware & Architecture; Engineering, Electrical & Electronic SC Computer Science; Engineering GA BG6PB UT WOS:000390715800086 ER PT J AU Xiao, BL Starke, M King, D Irminger, P Herron, A Ollis, B Xue, YS AF Xiao, Bailu Starke, Michael King, Dan Irminger, Philip Herron, Andrew Ollis, Ben Xue, Yaosuo GP IEEE TI Implementation of System Level Control and Communications in a Hardware-in-the-Loop Microgrid Testbed SO 2016 IEEE POWER & ENERGY SOCIETY INNOVATIVE SMART GRID TECHNOLOGIES CONFERENCE (ISGT) LA English DT Proceedings Paper CT IEEE Power-and-Energy-Society Innovative Smart Grid Technologies Conference (ISGT) CY SEP 06-09, 2016 CL Minneapolis, MN SP IEEE Power & Energy Soc AB A Hardware-in-the-Loop (HIL) microgrid testbed for the evaluation and assessment of microgrid operation and control is presented in this paper. The HIL testbed is composed of a Real-Time Digital Simulator (RTDS) for modeling of the microgrid, multiple National Instruments (NI) CompactRIOs for Intelligent Electronic Device (IED) control, a prototype Energy Management System (EMS), and a Supervisory Control and Data Acquisition system (SCADA). The implementation of the system level control and communication is described, and testing results are presented to demonstrate the functionality of the proposed HIL microgrid testbed and microgrid controller. C1 [Xiao, Bailu; Starke, Michael; King, Dan; Irminger, Philip; Herron, Andrew; Ollis, Ben; Xue, Yaosuo] Oak Ridge Natl Lab, Power & Energy Syst Grp, Oak Ridge, TN 37831 USA. RP Xiao, BL (reprint author), Oak Ridge Natl Lab, Power & Energy Syst Grp, Oak Ridge, TN 37831 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 978-1-5090-5167-0 PY 2016 PG 5 WC Computer Science, Hardware & Architecture; Engineering, Electrical & Electronic SC Computer Science; Engineering GA BG6PB UT WOS:000390715800088 ER PT J AU Minutoli, M Castellana, VG Tumeo, A Lattuada, M Ferrandi, F AF Minutoli, Marco Castellana, Vito Giovanni Tumeo, Antonino Lattuada, Marco Ferrandi, Fabrizio GP ACM TI Enabling the High Level Synthesis of Data Analytics Accelerators SO 2016 INTERNATIONAL CONFERENCE ON HARDWARE/SOFTWARE CODESIGN AND SYSTEM SYNTHESIS (CODES+ISSS) LA English DT Proceedings Paper CT International Conference on Hardware/Software Codesign and System Synthesis (CODES+ISSS) CY OCT 02-07, 2016 CL Pittsburgh, PA AB Conventional High Level Synthesis (HLS) tools mainly target compute intensive kernels typical of digital signal processing applications. We are developing techniques and architectural templates to enable HLS of data analytics applications. These applications are memory intensive, present fine-grained, unpredictable data accesses, and irregular, dynamic task parallelism. We discuss an architectural template based around a distributed controller to efficiently exploit thread level parallelism. We present a memory interface that supports parallel memory subsystems and enables implementing atomic memory operations. We introduce a dynamic task scheduling approach to efficiently execute heavily unbalanced workload. The templates are validated by synthesizing queries from the Lehigh University Benchmark (LUBM), a well know SPARQL benchmark. C1 [Minutoli, Marco; Castellana, Vito Giovanni; Tumeo, Antonino] Pacific Northwest Natl Lab, High Performance Comp, Richland, WA 99352 USA. [Lattuada, Marco; Ferrandi, Fabrizio] Politecn Milan, Dipartimento Elettron Informaz & Bioingn, I-20132 Milan, Italy. RP Minutoli, M (reprint author), Pacific Northwest Natl Lab, High Performance Comp, Richland, WA 99352 USA. EM marco.minutoli@pnnl.gov; vitoGiovanni.castellana@pnnl.gov; antonino.tumeo@pnnl.gov; marco.lattuada@polimi.it; fabrizio.ferrandi@polimi.it 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 PY 2016 DI 10.1145/2968456.2976764 PG 3 WC Computer Science, Hardware & Architecture; Computer Science, Software Engineering; Computer Science, Theory & Methods SC Computer Science GA BG6NE UT WOS:000390612700015 ER PT S AU Del Prete, M Adriani, O Berti, E Bonechi, L Bongi, M Castellini, G D'Alessandro, R Haguenauer, M Itow, Y Kasahara, K Kawade, K Makino, Y Masuda, K Matsubayashi, E Menjo, H Mitsuka, G Muraki, Y Okuno, Y Papini, P Perrot, AL Ricciarini, S Sako, T Sakurai, N Sugiura, Y Suzuki, T Tamura, T Tiberio, A Torii, S Tricomi, A Turner, WC Zhou, QD AF Del Prete, M. Adriani, O. Berti, E. Bonechi, L. Bongi, M. Castellini, G. D'Alessandro, R. Haguenauer, M. Itow, Y. Kasahara, K. Kawade, K. Makino, Y. Masuda, K. Matsubayashi, E. Menjo, H. Mitsuka, G. Muraki, Y. Okuno, Y. Papini, P. Perrot, A-L. Ricciarini, S. Sako, T. Sakurai, N. Sugiura, Y. Suzuki, T. Tamura, T. Tiberio, A. Torii, S. Tricomi, A. Turner, W. C. Zhou, Q. D. BE Bravina, L Foka, Y Kabana, S TI LHCf experiment: forward physics at LHC for cosmic rays study SO 4TH INTERNATIONAL CONFERENCE ON NEW FRONTIERS IN PHYSICS SE EPJ Web of Conferences LA English DT Proceedings Paper CT 4th International Conference on New Frontiers in Physics (ICNFP) CY AUG 23-30, 2015 CL Crete, GREECE SP European Org Nucl Res, ExtreMe Matter Inst, Helmholtzzentrum Schwerionenforschung, Facil Antiproton & Ion Res, Univ Oslo, Subatech, Univ Nantes, Warsaw Univ Technol, Saint Petersburg State Univ, Tech Univ Crete, Univ Bergen, Univ Crete, Tech Univ Chania ID PROTON-PROTON COLLISIONS; PHOTON ENERGY-SPECTRA AB The LHCf experiment, optimized for the study of forward physics at LHC, completes its main physics program in this year 2015, with the proton-proton collisions at the energy of 13 TeV. LHCf gives important results on the study of neutral particles at extreme pseudo-rapidity, both for proton-proton and for proton-ion interactions. These results are an important reference for tuning the models of the hadronic interaction currently used for the simulation of the atmospheric showers induced by very high energy cosmic rays. The results of this analysis and the future perspective are presented in this paper. C1 [Del Prete, M.; Adriani, O.; Berti, E.; Bonechi, L.; Bongi, M.; D'Alessandro, R.; Papini, P.; Ricciarini, S.; Tiberio, A.] INFN, Sect Florence, Florence, Italy. [Del Prete, M.; Adriani, O.; Berti, E.; Bonechi, L.; Bongi, M.; D'Alessandro, R.; Mitsuka, G.; Ricciarini, S.; Tiberio, A.] Univ Florence, Florence, Italy. [Castellini, G.] IFAC CNR, Florence, Italy. [Haguenauer, M.] Ecole Polytechn, Palaiseau, France. [Itow, Y.; Kawade, K.; Makino, Y.; Masuda, K.; Matsubayashi, E.; Mitsuka, G.; Muraki, Y.; Okuno, Y.; Sako, T.; Sugiura, Y.; Zhou, Q. D.] Nagoya Univ, Solar Terr Environm Lab, Nagoya, Aichi, Japan. [Itow, Y.; Sakurai, N.; Torii, S.] Nagoya Univ, Kobayashi Maskawa Inst Origin Particles & Univ, Nagoya, Aichi, Japan. [Kasahara, K.; Suzuki, T.] Waseda Univ, RISE, Tokyo, Tokyo, Japan. [Menjo, H.] Nagoya Univ, Grad Sch Sci, Nagoya, Aichi, Japan. [Okuno, Y.] Nagasaki Inst Appl Sci, Nagasaki, Japan. [Perrot, A-L.] CERN, Geneva, Switzerland. [Tamura, T.] Kanagawa Univ, Kanagawa, Japan. [Tricomi, A.] INFN, Sect Catania, Catania, Italy. [Tricomi, A.] Univers Catania, Catania, Italy. [Turner, W. C.] LBNL, Berkeley, CA USA. RP Del Prete, M (reprint author), INFN, Sect Florence, Florence, Italy. EM marina.delprete@fi.infn.it NR 12 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 2016 VL 126 AR UNSP 04014 DI 10.1051/epjconf/201612604014 PG 7 WC Physics, Multidisciplinary SC Physics GA BG5RT UT WOS:000389712600054 ER PT S AU Leontsinis, S Ntekas, K AF Leontsinis, S. Ntekas, K. CA ATLAS Muon Collaboration BE Bravina, L Foka, Y Kabana, S TI Performance Studies of Micromegas Chambers for the New Small Wheel Upgrade Project SO 4TH INTERNATIONAL CONFERENCE ON NEW FRONTIERS IN PHYSICS SE EPJ Web of Conferences LA English DT Proceedings Paper CT 4th International Conference on New Frontiers in Physics (ICNFP) CY AUG 23-30, 2015 CL Crete, GREECE SP European Org Nucl Res, ExtreMe Matter Inst, Helmholtzzentrum Schwerionenforschung, Facil Antiproton & Ion Res, Univ Oslo, Subatech, Univ Nantes, Warsaw Univ Technol, Saint Petersburg State Univ, Tech Univ Crete, Univ Bergen, Univ Crete, Tech Univ Chania ID BULK AB The ATLAS collaboration has chosen the Micromegas technology along with the small-strip Thin Gap Chambers for the upgrade of the inner muon station in the high-rapidity region, the so called New Small Wheel upgrade project. It will employ eight layers of Micromegas and eight layers of small-strip Thin Gap Chambers per wheel. The New Small Wheel project requires fully efficient Micromegas chambers, able to cope with the maximum expected rate of 15 kHz/cm(2) featuring single plane spatial resolution better than 100 mu m. The Micromegas detectors will cover a total active area of similar to 1200 m(2) and will be operated in a moderate magnetic field (<= 0.3 T). Moreover, together with their precise tracking capability the New Small Wheel Micromegas chambers will contribute to the ATLAS Level-1 trigger system. Several studies have been performed on small (10 x 10 cm(2)) and medium (1 x 0.5 m(2)) size prototypes using medium (1 - 5 GeV/c) and high momentum (120 - 150 GeV/c) hadron beams at CERN. A brief overview of the results obtained is presented. C1 [Leontsinis, S.] Natl Tech Univ Athens, Athens, Greece. [Ntekas, K.] Brookhaven Natl Lab, Upton, NY USA. RP Leontsinis, S (reprint author), Natl Tech Univ Athens, Athens, Greece. EM Stefanos.Leontsinis@cern.ch; Konstantinos.Ntekas@cern.ch NR 19 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 J9 EPJ WEB CONF PY 2016 VL 126 AR UNSP 05007 DI 10.1051/epjconf/201612605007 PG 8 WC Physics, Multidisciplinary SC Physics GA BG5RT UT WOS:000389712600104 ER PT J AU Gooding, J Magnussen, O Fermin, D Crooks, R Kanoufi, F Schuhmann, W Nichols, R Schmickler, W Tao, NJ Chen, SL Actis, P Page, A Tschulik, K Faez, S Edwards, M Johnson, R Nogala, W Kranz, C Eikerling, M Unwin, P Thomas, B Prabhakaran, V Clausmeyer, J Vincent, K Koper, M Tian, ZQ Mount, A Alpuche-Aviles, MA White, H Ewing, A Higgins, S Baker, L Zhan, DP Ulstrup, J Bohn, PW Lemay, S AF Gooding, Justin Magnussen, Olaf Fermin, David Crooks, Richard Kanoufi, Frederic Schuhmann, Wolfgang Nichols, Richard Schmickler, Wolfgang Tao, Nongjian Chen, Shengli Actis, Paolo Page, Ashley Tschulik, Kristina Faez, Sanli Edwards, Martin Johnson, Robert Nogala, Wojciech Kranz, Christine Eikerling, Michael Unwin, Patrick Thomas, Bradley Prabhakaran, Venkateshkumar Clausmeyer, Jan Vincent, Kylie Koper, Marc Tian, Zhongqun Mount, Andy Alpuche-Aviles, Mario A. White, Henry Ewing, Andrew Higgins, Simon Baker, Lane Zhan, Dongping Ulstrup, Jens Bohn, Paul W. Lemay, Serge TI From single cells to single molecules: general discussion SO FARADAY DISCUSSIONS LA English DT Editorial Material ID SCANNING ION CONDUCTANCE; COPPER NITRITE REDUCTASE; ELECTROCHEMICAL MICROSCOPY; HORSERADISH-PEROXIDASE; TUNNELING-MICROSCOPY; CARBON ELECTRODES; VOLTAMMETRY; ADSORPTION; CATALYSTS; CHANNELS C1 [Gooding, Justin] Univ New South Wales, Sydney, NSW 2052, Australia. [Magnussen, Olaf] Univ Kiel, Inst Expt & Appl Phys, Kiel, Germany. [Fermin, David] Univ Bristol, Bristol BS8 1TH, Avon, England. [Crooks, Richard] Univ Texas Austin, Austin, TX 78712 USA. [Kanoufi, Frederic] Univ Paris Diderot, Paris, France. [Schuhmann, Wolfgang; Tschulik, Kristina; Clausmeyer, Jan] Ruhr Univ Bochum, Bochum, Germany. [Nichols, Richard] Univ Liverpool, Deparmtent Chem, Liverpool L69 3BX, Merseyside, England. [Schmickler, Wolfgang] Univ Ulm, D-89069 Ulm, Germany. [Tao, Nongjian] Arizona State Univ, Tempe, AZ 85287 USA. [Chen, Shengli] Wuhan Univ, Wuhan, Hubei, Peoples R China. [Actis, Paolo] Univ Leeds, Leeds LS2 9JT, W Yorkshire, England. [Page, Ashley; Johnson, Robert; Unwin, Patrick] Univ Warwick, Coventry CV4 7AL, W Midlands, England. [Faez, Sanli] Univ Utrecht, NL-3508 TC Utrecht, Netherlands. [Edwards, Martin; Eikerling, Michael; White, Henry] Univ Utah, Salt Lake City, UT 84112 USA. [Nogala, Wojciech] Inst Phys Chem PAS, Warsaw, Poland. [Kranz, Christine] Inst Analyt & Bioanalyt Chem, Ulm, Germany. [Thomas, Bradley] Univ Nottingham, Sch Chem, Nottingham NG7 2RD, England. [Prabhakaran, Venkateshkumar] Pacific NW Natl Lab, Richland, WA 99352 USA. [Vincent, Kylie] Univ Oxford, Oxford OX1 2JD, England. [Koper, Marc] Leiden Univ, NL-2300 RA Leiden, Netherlands. [Ewing, Andrew] Chalmers Univ, Gothenburg, Sweden. [Ewing, Andrew] Univ Gothenburg, Gothenburg, Sweden. [Higgins, Simon] Univ Liverpool, Liverpool L69 3BX, Merseyside, England. [Baker, Lane] Indiana Univ, Bloomington, IN 47405 USA. [Baker, Lane] Xiamen Univ, Xiamen, Peoples R China. [Zhan, Dongping] Xiamen Univ, Deparment Chem, Xiamen, Peoples R China. [Ulstrup, Jens] DTU Chem, Lyngby, Denmark. [Bohn, Paul W.] Univ Notre Dame, Notre Dame, IN 46556 USA. [Lemay, Serge] Univ Twente, POB 217, NL-7500 AE Enschede, Netherlands. RP Gooding, J (reprint author), Univ New South Wales, Sydney, NSW 2052, Australia. RI Baker, Lane/B-6452-2008; OI Edwards, Martin/0000-0001-8072-361X; Schuhmann, Wolfgang/0000-0003-2916-5223 NR 36 TC 0 Z9 0 U1 15 U2 15 PU ROYAL SOC CHEMISTRY PI CAMBRIDGE PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND SN 1359-6640 EI 1364-5498 J9 FARADAY DISCUSS JI Faraday Discuss. PY 2016 VL 193 BP 141 EP 170 DI 10.1039/c6fd90066f PG 30 WC Chemistry, Physical SC Chemistry GA EG1IP UT WOS:000390786000009 PM 27892970 ER PT J AU Li, JM Li, JL AF Li, Jan-Mou Li, Jianlin GP IEEE TI Exploratory Spatial Distribution of Dynamic Wireless Charging Demand for EVs SO IEEE PELS WORKSHOP ON EMERGING TECHNOLOGIES: WIRELESS POWER (2016 WOW) LA English DT Proceedings Paper CT IEEE PELS Workshop on Emerging Technologies - Wireless Power (WoW) CY OCT 04-06, 2016 CL Knoxville, TN SP IEEE PELS DE Transportation Electrification; Electric Vehicle (EV); Power Demand Dynamic Wireless Charging (DWC); Driving Range AB This paper demonstrates a framework to optimize the investment of dynamic wireless charging (DWC) infrastructure for charging-in-motion services. The services require DWC infrastructure deployed on public roads to extend battery lifespan and reduce battery sizes while increasing driving range simultaneously. Since it would be financially infeasible to have such investments serving only few vehicles, estimation of power demand in real world applications will be valuable to the deployment. We propose a traffic-based power demand (TBPD) framework to estimate the demand since not only number and type of vehicles but also their spatial distribution of power demands have to be considered for the optimization. Monte Carlo simulations are incorporated into the proposed framework to estimate both number and type of vehicles as well as their speed profiles in a road network. Spatial distribution of power demands is derived with the simulated speed profiles and lays a foundation for the optimization. An example of applying the proposed framework in a corridor in Chattanooga, TN is presented for further discussion. Based on the power demand estimation, it is found that road segments between slightly upstream to and farther downstream from a stop line are ideal candidates to server the purpose. C1 [Li, Jan-Mou; Li, Jianlin] Oak Ridge Natl Lab, Energy & Transportat Sci Div, Knoxville, TN 37932 USA. RP Li, JM (reprint author), Oak Ridge Natl Lab, Energy & Transportat Sci Div, Knoxville, TN 37932 USA. EM lij3@ornl.gov; lij4@ornl.gov 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 978-1-5090-3414-7 PY 2016 BP 123 EP 127 PG 5 WC Engineering, Electrical & Electronic SC Engineering GA BG6OO UT WOS:000390699200023 ER PT J AU Meintz, A Prohaska, R Konan, A Ragatz, A Markel, T Kelly, K AF Meintz, Andrew Prohaska, Robert Konan, Arnaud Ragatz, Adam Markel, Tony Kelly, Ken GP IEEE TI Analysis of In-Route Wireless Charging for the Shuttle System at Zion National Park SO IEEE PELS WORKSHOP ON EMERGING TECHNOLOGIES: WIRELESS POWER (2016 WOW) LA English DT Proceedings Paper CT IEEE PELS Workshop on Emerging Technologies - Wireless Power (WoW) CY OCT 04-06, 2016 CL Knoxville, TN SP IEEE PELS DE wireless power transfer; in-route charging; quasi-static charging; shuttle bus AB System right-sizing is critical to implementation of wireless power transfer (WPT) for electric vehicles. This study will analyze potential WPT scenarios for the electrification of shuttle buses at Zion National Park utilizing a modelling tool developed by the National Renewable Energy Laboratory called WPTSim. This tool uses second-by-second speed, location, and road grade data from the conventional shuttles in operation to simulate the incorporation of WPT at fine granularity. Vehicle power and state of charge are simulated over the drive cycle to evaluate potential system designs. The required battery capacity is determined based on the rated power at a variable number of charging locations. The outcome of this work is an analysis of the design tradeoffs for the electrification of the shuttle fleet with wireless charging versus conventional overnight charging. C1 [Meintz, Andrew; Prohaska, Robert; Konan, Arnaud; Ragatz, Adam; Markel, Tony; Kelly, Ken] Natl Renewable Energy Lab, Transportat & Hydrogen Syst Ctr, Golden, CO USA. RP Meintz, A (reprint author), Natl Renewable Energy Lab, Transportat & Hydrogen Syst Ctr, Golden, CO 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 978-1-5090-3414-7 PY 2016 BP 191 EP 195 PG 5 WC Engineering, Electrical & Electronic SC Engineering GA BG6OO UT WOS:000390699200035 ER PT J AU Foote, A Ozpineci, B Chinthavali, M Li, JM AF Foote, Andrew Ozpineci, Burak Chinthavali, Madhu Li, Jan-Mou GP IEEE TI Sizing Dynamic Wireless Charging for Light-Duty Electric Vehicles in Roadway Applications SO IEEE PELS WORKSHOP ON EMERGING TECHNOLOGIES: WIRELESS POWER (2016 WOW) LA English DT Proceedings Paper CT IEEE PELS Workshop on Emerging Technologies - Wireless Power (WoW) CY OCT 04-06, 2016 CL Knoxville, TN SP IEEE PELS DE Road transportation; electric vehicles; dynamic wireless charging; driving cycles; transportation electrification; wireless power transfer AB Dynamic wireless charging is a possible cure for the range limitations seen in electric vehicles (EVs) once implemented in highways or city streets. The contribution of this paper is the use of experimental data to show that the expected energy gain from a dynamic wireless power transfer (WPT) system is largely a function of average speed, which allows the power level and number of coils per mile of a dynamic WPT system to be sized for the sustained operation of an EV. First, data from dynamometer testing is used to determine the instantaneous energy requirements of a light-duty EV. Then, experimental data is applied to determine the theoretical energy gained by passing over a coil as a function of velocity and power level. Related simulations are performed to explore possible methods of placing WPT coils within roadways with comparisons to the constant velocity case. Analyses with these cases demonstrate what system ratings are needed to meet the energy requirements of the EV and what effect longitudinal alignment has on WPT. The simulations are also used to determine onboard energy storage requirements for each driving cycle. C1 [Foote, Andrew; Ozpineci, Burak] Univ Tennessee, Bredesen Ctr, Knoxville, TN 37996 USA. [Foote, Andrew; Ozpineci, Burak; Chinthavali, Madhu] Oak Ridge Natl Lab, Power Elect & Elect Machinery Res Ctr, Knoxville, TN 37831 USA. [Li, Jan-Mou] Oak Ridge Natl Lab, Ctr Transportat Anal, Knoxville, TN USA. RP Foote, A (reprint author), Univ Tennessee, Bredesen Ctr, Knoxville, TN 37996 USA.; Foote, A (reprint author), Oak Ridge Natl Lab, Power Elect & Elect Machinery Res Ctr, Knoxville, TN 37831 USA. EM afoote5@vols.utk.edu; burak@ornl.gov; chinthavalim@ornl.gov; lij3@ornl.gov 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 978-1-5090-3414-7 PY 2016 BP 224 EP 230 PG 7 WC Engineering, Electrical & Electronic SC Engineering GA BG6OO UT WOS:000390699200041 ER PT J AU Bradham, KD Green, W Hayes, H Nelson, C Alava, P Misenheimer, J Diamond, GL Thayer, WC Thomas, DJ AF Bradham, Karen D. Green, William Hayes, Hunter Nelson, Clay Alava, Pradeep Misenheimer, John Diamond, Gary L. Thayer, William C. Thomas, David J. TI Estimating relative bioavailability of soil lead in the mouse SO JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH-PART A-CURRENT ISSUES LA English DT Article ID CONTAMINATED SOILS; RATS; BIOACCESSIBILITY; SWINE AB Lead (Pb) in soil is an important exposure source for children. Thus, determining bioavailability of Pb in soil is critical in evaluating risk and selecting appropriate strategies to minimize exposure. A mouse model was developed to estimate relative bioavailability of Pb in NIST SRM 2710a (Montana 1 Soil). Based on Pb levels in tissues, the mean relative bioavailability of this metal in this soil was 0.5. Estimates of relative bioavailabilities derived from mouse compared favorably with those obtained in juvenile swine. The mouse model is thus an efficient and inexpensive method to obtain estimates of relative bioavailability of soil Pb. C1 [Bradham, Karen D.; Nelson, Clay] US EPA, Publ Hlth Chem Branch, Exposure Methods & Measurements Div, Natl Exposure Res Lab,Off Res & Dev, Res Triangle Pk, NC 27709 USA. [Green, William; Hayes, Hunter; Thomas, David J.] US EPA, Pharmacokinet Branch, Integrated Syst Toxicol Div, Natl Hlth & Environm Effects Res Lab,Off Res & De, Res Triangle Pk, NC 27711 USA. [Alava, Pradeep] Natl Res Associateship Programs, Res Triangle Pk, NC USA. [Misenheimer, John] Oak Ridge Inst Sci & Educ, Res Triangle Pk, NC USA. [Diamond, Gary L.; Thayer, William C.] SRC Inc, North Syracuse, NY USA. RP Bradham, KD (reprint author), US EPA, Publ Hlth Chem Branch, Exposure Methods & Measurements Div, Natl Exposure Res Lab,Off Res & Dev, Res Triangle Pk, NC 27709 USA. EM bradham.karen@epa.gov NR 17 TC 0 Z9 0 U1 6 U2 6 PU TAYLOR & FRANCIS INC PI PHILADELPHIA PA 530 WALNUT STREET, STE 850, PHILADELPHIA, PA 19106 USA SN 1528-7394 EI 1087-2620 J9 J TOXICOL ENV HEAL A JI J. Toxicol. Env. Health Part A PY 2016 VL 79 IS 24 BP 1179 EP 1182 DI 10.1080/15287394.2016.1221789 PG 4 WC Environmental Sciences; Public, Environmental & Occupational Health; Toxicology SC Environmental Sciences & Ecology; Public, Environmental & Occupational Health; Toxicology GA EF8PQ UT WOS:000390591700002 PM 27767405 ER PT J AU Pradhan, E Magyar, RJ Akimov, AV AF Pradhan, Ekadashi Magyar, Rudolph J. Akimov, Alexey V. TI Scaling relationships for nonadiabatic energy relaxation times in warm dense matter: toward understanding the equation of state SO PHYSICAL CHEMISTRY CHEMICAL PHYSICS LA English DT Article ID GENERALIZED GRADIENT APPROXIMATION; QUANTUM MOLECULAR-DYNAMICS; WAVE BASIS-SET; ELECTRONIC-TRANSITIONS; FUNCTIONAL THEORY; PYXAID PROGRAM; SYSTEMS; SIMULATIONS; DECOHERENCE; TRAJECTORIES AB Understanding the dynamics of electron-ion energy transfer in warm dense (WD) matter is important to the measurement of equation of state (EOS) properties and for understanding the energy balance in dynamic simulations. In this work, we present a comprehensive investigation of nonadiabatic electron relaxation and thermal excitation dynamics in aluminum under high pressure and temperature. Using quantum-classical trajectory surface hopping approaches, we examine the role of nonadiabatic couplings and electronic decoherence in electron-nuclear energy transfer in WD aluminum. The computed timescales range from 400 fs to 4.0 ps and are consistent with existing experimental studies. We have derived general scaling relationships between macroscopic parameters of WD systems such as temperature or mass density and the timescales of energy redistribution between quantum and classical degrees of freedom. The scaling laws are supported by computational results. We show that electronic decoherence plays essential role and can change the functional dependencies qualitatively. The established scaling relationships can be of use in modelling of WD matter. C1 [Pradhan, Ekadashi; Akimov, Alexey V.] SUNY Buffalo, Dept Chem, Buffalo, NY 14260 USA. [Magyar, Rudolph J.] Sandia Natl Labs, Ctr Res Comp, POB 5800, Albuquerque, NM 87185 USA. RP Akimov, AV (reprint author), SUNY Buffalo, Dept Chem, Buffalo, NY 14260 USA. EM alexeyak@buffalo.edu FU NNSA; U.S. Department of Energy's National Security Administration [DE-AC04-94AL85000]; University at Buffalo, The State University of New York startup package FX This work was funded by the NNSA through the science campaigns. Sandia National Laboratories is a multi-program laboratory managed and operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, for the U.S. Department of Energy's National Security Administration under contract DE-AC04-94AL85000. AVA also acknowledges the financial support from the University at Buffalo, The State University of New York startup package. Support of computations is provided by the Center for Computational Research at the University at Buffalo. NR 90 TC 0 Z9 0 U1 5 U2 5 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 2016 VL 18 IS 47 BP 32466 EP 32476 DI 10.1039/c6cp06827h PG 11 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA EF6JH UT WOS:000390436800051 PM 27869257 ER PT J AU Soundarajan, S Eliassi-Rad, T Gallagher, B Pinar, A AF Soundarajan, Sucheta Eliassi-Rad, Tina Gallagher, Brian Pinar, Ali BE Kumar, R Caverlee, J Tong, H TI MaxReach: Reducing Network Incompleteness through Node Probes SO PROCEEDINGS OF THE 2016 IEEE/ACM INTERNATIONAL CONFERENCE ON ADVANCES IN SOCIAL NETWORKS ANALYSIS AND MINING ASONAM 2016 LA English DT Proceedings Paper CT 8th IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining (ASONAM) CY AUG 18-21, 2016 CL San Francisco, CA SP IEEE, Assoc Comp Machinery, ACM SIGMOD, IEEE Comp Soc, IEEE TCDE, Springer, VEEPIO AB Real-world network datasets are often incomplete. Subsequently, any analysis on such networks is likely to produce skewed results. We examine the following problem: given an incomplete network, which b nodes should be probed to bring as many new nodes as possible into the observed network? For instance, consider someone who has observed a portion (say 1%) of the Twitter network. How should she use a limited budget to reduce the incompleteness of the network? In this work, we propose a novel algorithm, called MAXREACH, which uses a budget b to increase the number of nodes in the observed network. Our experiments, across a range of datasets and conditions, demonstrate the efficacy of MAXREACH. C1 [Soundarajan, Sucheta] Syracuse Univ, Syracuse, NY 13244 USA. [Eliassi-Rad, Tina] Northeastern Univ, Boston, MA 02115 USA. [Gallagher, Brian] Lawrence Livermore Natl Lab, Livermore, CA USA. [Pinar, Ali] Sandia Natl Labs, Livermore, CA 94550 USA. RP Soundarajan, S (reprint author), Syracuse Univ, Syracuse, NY 13244 USA. EM susounda@syr.edu; eliassi@ces.neu.edu; bgallagher@llnl.gov; apinar@sandia.gov 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 978-1-5090-2846-7 PY 2016 BP 152 EP 157 PG 6 WC Computer Science, Information Systems; Communication; Computer Science, Interdisciplinary Applications; Social Sciences, Interdisciplinary SC Computer Science; Communication; Social Sciences - Other Topics GA BG6PQ UT WOS:000390760100022 ER PT J AU Minnich, A Abu-El-Rub, N Gokhale, M Minnich, R Mueen, A AF Minnich, Amanda Abu-El-Rub, Noor Gokhale, Maya Minnich, Ronald Mueen, Abdullah BE Kumar, R Caverlee, J Tong, H TI ClearView: Data Cleaning for Online Review Mining SO PROCEEDINGS OF THE 2016 IEEE/ACM INTERNATIONAL CONFERENCE ON ADVANCES IN SOCIAL NETWORKS ANALYSIS AND MINING ASONAM 2016 LA English DT Proceedings Paper CT 8th IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining (ASONAM) CY AUG 18-21, 2016 CL San Francisco, CA SP IEEE, Assoc Comp Machinery, ACM SIGMOD, IEEE Comp Soc, IEEE TCDE, Springer, VEEPIO AB How can we automatically clean and curate online reviews to better mine them for knowledge discovery? Typical online reviews are full of noise and abnormalities, hindering semantic analysis and leading to a poor customer experience. Abnormalities include non-standard characters, unstructured punctuation, different/multiple languages, and misspelled words. Worse still, people will leave "junk" text, which is either completely nonsensical, spam, or fraudulent. In this paper, we describe three types of noisy and abnormal reviews, discuss methods to detect and filter them, and, finally, show the effectiveness of our cleaning process by improving the overall distributional characteristics of review datasets. C1 [Minnich, Amanda; Abu-El-Rub, Noor; Mueen, Abdullah] Univ New Mexico, Albuquerque, NM 87131 USA. [Gokhale, Maya] Lawrence Livermore Natl Lab, Livermore, CA USA. [Minnich, Ronald] Google Inc, Mountain View, CA USA. RP Minnich, A (reprint author), Univ New Mexico, Albuquerque, NM 87131 USA. EM aminnich@cs.unm.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 978-1-5090-2846-7 PY 2016 BP 555 EP 558 PG 4 WC Computer Science, Information Systems; Communication; Computer Science, Interdisciplinary Applications; Social Sciences, Interdisciplinary SC Computer Science; Communication; Social Sciences - Other Topics GA BG6PQ UT WOS:000390760100085 ER PT J AU Wendt, JD Wells, R Field, RV Soundarajan, S AF Wendt, Jeremy D. Wells, Randy Field, Richard V., Jr. Soundarajan, Sucheta BE Kumar, R Caverlee, J Tong, H TI On data collection, graph construction, and sampling in Twitter SO PROCEEDINGS OF THE 2016 IEEE/ACM INTERNATIONAL CONFERENCE ON ADVANCES IN SOCIAL NETWORKS ANALYSIS AND MINING ASONAM 2016 LA English DT Proceedings Paper CT 8th IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining (ASONAM) CY AUG 18-21, 2016 CL San Francisco, CA SP IEEE, Assoc Comp Machinery, ACM SIGMOD, IEEE Comp Soc, IEEE TCDE, Springer, VEEPIO ID NETWORKS AB We present a detailed study on data collection, graph construction, and sampling in Twitter. We observe that sampling on semantic graphs (i. e., graphs with multiple edge types) presents fundamentally distinct challenges from sampling on traditional graphs. The purpose of our work is to present new challenges and initial solutions for sampling semantic graphs. Novel elements of our work include the following: (1) We provide a thorough discussion of problems encountered with naive breadth-first search on semantic graphs. We argue that common sampling methods such as breadth-first search face specific challenges on semantic graphs that are not encountered on graphs with homogeneous edge types. (2) We present two competing methods for creating semantic graphs from data collects, corresponding to the interactions between sampling of different edge types. (3) We discuss new metrics specific to graphs with multiple edge types, and discuss the effect of the sampling method on these metrics. (4) We discuss issues and potential solutions pertaining to sampling semantic graphs. C1 [Wendt, Jeremy D.; Wells, Randy; Field, Richard V., Jr.] Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. [Soundarajan, Sucheta] Syracuse Univ, Syracuse, NY USA. RP Wendt, JD (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. EM jdwendt@sandia.gov; rwells@sandia.gov; rvfield@sandia.gov; susounda@syr.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 978-1-5090-2846-7 PY 2016 BP 985 EP 992 PG 8 WC Computer Science, Information Systems; Communication; Computer Science, Interdisciplinary Applications; Social Sciences, Interdisciplinary SC Computer Science; Communication; Social Sciences - Other Topics GA BG6PQ UT WOS:000390760100155 ER PT J AU Hajibagheri, A Sukthankar, G Lakkaraju, K AF Hajibagheri, Alireza Sukthankar, Gita Lakkaraju, Kiran BE Kumar, R Caverlee, J Tong, H TI A Holistic Approach for Predicting Links in Coevolving Multiplex Networks SO PROCEEDINGS OF THE 2016 IEEE/ACM INTERNATIONAL CONFERENCE ON ADVANCES IN SOCIAL NETWORKS ANALYSIS AND MINING ASONAM 2016 LA English DT Proceedings Paper CT 8th IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining (ASONAM) CY AUG 18-21, 2016 CL San Francisco, CA SP IEEE, Assoc Comp Machinery, ACM SIGMOD, IEEE Comp Soc, IEEE TCDE, Springer, VEEPIO ID WEB AB Networks extracted from social media platforms frequently include multiple types of links that dynamically change over time; these links can be used to represent dyadic interactions such as economic transactions, communications, and shared activities. Organizing this data into a dynamic multiplex network, where each layer is composed of a single edge type linking the same underlying vertices, can reveal interesting cross-layer interaction patterns. In coevolving networks, links in one layer result in an increased probability of other types of links forming between the same node pair. Hence we believe that a holistic approach in which all the layers are simultaneously considered can outperform a factored approach in which link prediction is performed separately in each layer. This paper introduces a comprehensive framework, MLP (Multiplex Link Prediction), in which link existence likelihoods for the target layer are learned from the other network layers. These likelihoods are used to reweight the output of a single layer link prediction method that uses rank aggregation to combine a set of topological metrics. Our experiments show that our reweighting procedure outperforms other methods for fusing information across network layers. C1 [Hajibagheri, Alireza; Sukthankar, Gita] Univ Cent Florida, Orlando, FL 32816 USA. [Lakkaraju, Kiran] Sandia Natl Labs, Livermore, CA 94550 USA. RP Hajibagheri, A (reprint author), Univ Cent Florida, Orlando, FL 32816 USA. EM alireza@eecs.ucf.edu; gitars@eecs.ucf.edu; klakkar@sandia.gov NR 28 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-5090-2846-7 PY 2016 BP 1079 EP 1086 PG 8 WC Computer Science, Information Systems; Communication; Computer Science, Interdisciplinary Applications; Social Sciences, Interdisciplinary SC Computer Science; Communication; Social Sciences - Other Topics GA BG6PQ UT WOS:000390760100170 ER PT J AU Helinski, RL Cole, EI Robertson, G Woodbridge, J Pierson, LG AF Helinski, Ryan L. Cole, Edward I., Jr. Robertson, Gideon Woodbridge, Jonathan Pierson, Lyndon G. GP IEEE TI Electronic Forensic Techniques for Manufacturer Attribution SO PROCEEDINGS OF THE 2016 IEEE INTERNATIONAL SYMPOSIUM ON HARDWARE ORIENTED SECURITY AND TRUST (HOST) LA English DT Proceedings Paper CT IEEE International Symposium on Hardware Oriented Security and Trust (HOST) CY MAY 03-05, 2016 CL McLean, CA SP IEEE, IEEE Comp Soc, Intrinsic ID, Enthentica, Intel, Rambus Cryptol Res, Mentor Graph, Microsemi, Cisco, Tortuga Log, Team Res Ubiquitous Secure Technol ID AUTHENTICATION AB The microelectronics industry seeks screening tools that can be used to verify the origin of and track integrated circuits (ICs) throughout their lifecycle. Embedded circuits that measure process variation of an IC are well known. This paper adds to previous work using these circuits for studying manufacturer characteristics on final product ICs, particularly for the purpose of developing and verifying a signature for a microelectronics manufacturing facility (fab). We present the design, measurements and analysis of 159 silicon ICs which were built as a proof of concept for this purpose. 80 copies of our proof of concept IC were built at one fab, and 80 more copies were built across two lots at a second fab. Using these ICs, our prototype circuits allowed us to distinguish these two fabs with up to 98.7% accuracy and also distinguish the two lots from the second fab with up to 98.8% accuracy. C1 [Helinski, Ryan L.; Cole, Edward I., Jr.; Robertson, Gideon; Woodbridge, Jonathan] Sandia Natl Labs, Albuquerque, NM 87123 USA. RP Helinski, RL (reprint author), Sandia Natl Labs, Albuquerque, NM 87123 USA. EM frhelins@sandia.gov; coleei@sandia.gov; garobe@sandia.gov; jwoodbr@sandia.gov 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 978-1-4673-8826-9 PY 2016 BP 139 EP 144 PG 6 WC Computer Science, Hardware & Architecture; Computer Science, Theory & Methods SC Computer Science GA BG6PH UT WOS:000390718200026 ER PT J AU Holmes, D Mohror, K Grant, RE Skjellum, A Schulz, M Bland, W Squyres, JM AF Holmes, Daniel Mohror, Kathryn Grant, Ryan E. Skjellum, Anthony Schulz, Martin Bland, Wesley Squyres, Jeffrey M. GP ACM TI MPI Sessions: Leveraging Runtime Infrastructure to Increase Scalability of Applications at Exascale SO PROCEEDINGS OF THE 23RD EUROPEAN MPI USERS' GROUP MEETING (EUROMPI 2016) LA English DT Proceedings Paper CT 23rd European MPI Users Group Meeting (EuroMPI) CY SEP 25-28, 2016 CL Univ Edinburgh, Edinburgh, SCOTLAND SP EPCC, SGI, Altair, INRIA, Ho Comp, Cray, EPiGRAM, Allinea HO Univ Edinburgh DE Message Passing Interface; Scalable Programming Model AB MPI includes all processes in MPI COMM WORLD; this is untenable for reasons of scale, resiliency, and overhead. This paper offers a new approach, extending MPI with a new concept called Sessions, which makes two key contributions: a tighter integration with the underlying runtime system; and a scalable route to communication groups. This is a fundamental change in how we organise and address MPI processes that removes well-known scalability barriers by no longer requiring the global communicator MPI COMM WORLD. C1 [Holmes, Daniel] Univ Edinburgh, EPCC, Edinburgh EH8 9YL, Midlothian, Scotland. [Mohror, Kathryn; Schulz, Martin] Lawrence Livermore Natl Lab, Livermore, CA USA. [Grant, Ryan E.] Sandia Natl Labs, Ctr Res Comp, Livermore, CA 94550 USA. [Skjellum, Anthony] Auburn Univ, Auburn, AL 36849 USA. [Bland, Wesley] Intel Corp, Santa Clara, CA USA. [Squyres, Jeffrey M.] Cisco Syst Inc, San Jose, CA USA. RP Holmes, D (reprint author), Univ Edinburgh, EPCC, Edinburgh EH8 9YL, Midlothian, Scotland. EM dholmes@epcc.ed.ac.uk; kathryn@llnl.gov; regrant@sandia.gov; skjellum@auburn.edu; schulzm@llnl.gov; wesley.bland@intel.com; jsquyres@cisco.com NR 18 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 978-1-4503-4234-6 PY 2016 BP 121 EP 129 DI 10.1145/2966884.2966915 PG 9 WC Computer Science, Theory & Methods SC Computer Science GA BG6MO UT WOS:000390603300012 ER PT J AU Levy, S Ferreira, KB Widener, P Bridges, PG Mondragon, OH AF Levy, Scott Ferreira, Kurt B. Widener, Patrick Bridges, Patrick G. Mondragon, Oscar H. GP ACM TI How I Learned to Stop Worrying and Love In Situ Analytics: Leveraging Latent Synchronization in MPI Collective Algorithms SO PROCEEDINGS OF THE 23RD EUROPEAN MPI USERS' GROUP MEETING (EUROMPI 2016) LA English DT Proceedings Paper CT 23rd European MPI Users Group Meeting (EuroMPI) CY SEP 25-28, 2016 CL Univ Edinburgh, Edinburgh, SCOTLAND SP EPCC, SGI, Altair, INRIA, Ho Comp, Cray, EPiGRAM, Allinea HO Univ Edinburgh DE in situ analytics; message passing interface; collective algorithm synchronization; high-performance computing ID PERFORMANCE AB Scientific workloads running on current extreme-scale systems routinely generate tremendous volumes of data for post-processing. This data movement has become a serious issue due to its energy cost and the fact that I/O bandwidths have not kept pace with data generation rates. In situ analytics is an increasingly popular alternative in which post-simulation processing is embedded into an application, running as part of the same MPI job. This can reduce data movement costs but introduces a new potential source of interference for the application. Using a validated simulation-based approach, we investigate how best to mitigate the interference from time-shared in situ tasks for a number of key extreme-scale workloads. This paper makes a number of contributions. First, we show that the independent scheduling of in situ analytics tasks can significantly degradation application performance, with slowdowns exceeding 1000%. Second, we demonstrate that the degree of synchronization found in many modern collective algorithms is sufficient to significantly reduce the overheads of this interference to less than 10% in most cases. Finally, we show that many applications already frequently invoke collective operations that use these synchronizing MPI algorithms. Therefore, the syncronization introduced by these MPI collective algorithms can be leveraged to efficiently schedule analytics tasks with minimal changes to existing applications. This paper provides critical analysis and guidance for MPI users and developers on the importance of scheduling in situ analytics tasks. It shows the degree of synchronization needed to mitigate the performance impacts of these time-shared coupled codes and demonstrates how that synchronization can be realized in an extreme-scale environment using modern collective algorithms. C1 [Levy, Scott; Ferreira, Kurt B.; Widener, Patrick] Sandia Natl Labs, Ctr Res Comp, Livermore, CA 94550 USA. [Bridges, Patrick G.; Mondragon, Oscar H.] Univ New Mexico, Dept Comp Sci, Albuquerque, NM 87131 USA. RP Levy, S (reprint author), Sandia Natl Labs, Ctr Res Comp, Livermore, CA 94550 USA. EM sllevy@sandia.gov; kbferre@sandia.gov; pwidene@sandia.gov; bridges@cs.unm.edu; omondrag@cs.unm.edu NR 41 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 978-1-4503-4234-6 PY 2016 BP 140 EP 153 DI 10.1145/2966884.2966920 PG 14 WC Computer Science, Theory & Methods SC Computer Science GA BG6MO UT WOS:000390603300014 ER PT J AU Hjelm, N AF Hjelm, Nathan GP ACM TI An Evaluation of the One-Sided Performance in Open MPI SO PROCEEDINGS OF THE 23RD EUROPEAN MPI USERS' GROUP MEETING (EUROMPI 2016) LA English DT Proceedings Paper CT 23rd European MPI Users Group Meeting (EuroMPI) CY SEP 25-28, 2016 CL Univ Edinburgh, Edinburgh, SCOTLAND SP EPCC, SGI, Altair, INRIA, Ho Comp, Cray, EPiGRAM, Allinea HO Univ Edinburgh DE Open MPI; Cray; Aries; uGNI; RMA; MPI-3 One-sided AB Open MPI provides an implementation of the MPI-3.1 standard supporting native communication over a wide range of high-performance network interconnects. As of version 2.0.0 Open MPI provides two implementations of the MPI-3.1 Remote Memory Access (RMA) specification. One implementation uses point-to-point (Send/Recv) communication to emulate RMA operations. The other is a new optimized RMA implementation (osc/rdma) that makes use of native network Remote Direct Memory Access (RDMA) and Atomic Memory Operations (AMOs). The osc/rdma implementation required the extension and enhancement of the Byte Transport Layer (BTL) interface in Open MPI to provide true RMA support for both communication and synchronization. For this work, we present an overview and performance evaluation of the osc/rdma RMA implementation in Open MPI v2.0.0. We additionally present early performance numbers of additional optimizations for accumulate operations. We show that osc/rdma is comparable in performance to that of a tuned vendor supplied MPI, and in some cases can outperform the vendor MPI by as much as 2X. C1 [Hjelm, Nathan] Los Alamos Natl Lab, MS B272, Los Alamos, NM 87545 USA. RP Hjelm, N (reprint author), Los Alamos Natl Lab, MS B272, Los Alamos, NM 87545 USA. EM hjelmn@lanl.gov NR 6 TC 1 Z9 1 U1 0 U2 0 PU ASSOC COMPUTING MACHINERY PI NEW YORK PA 1515 BROADWAY, NEW YORK, NY 10036-9998 USA BN 978-1-4503-4234-6 PY 2016 BP 184 EP 187 DI 10.1145/2966884.2966890 PG 4 WC Computer Science, Theory & Methods SC Computer Science GA BG6MO UT WOS:000390603300019 ER PT J AU Hilbrich, T Weber, M Protze, J de Supinski, BR Nagel, WE AF Hilbrich, Tobias Weber, Matthias Protze, Joachim de Supinski, Bronis R. Nagel, Wolfgang E. GP ACM TI Runtime Correctness Analysis of MPI-3 Nonblocking Collectives SO PROCEEDINGS OF THE 23RD EUROPEAN MPI USERS' GROUP MEETING (EUROMPI 2016) LA English DT Proceedings Paper CT 23rd European MPI Users Group Meeting (EuroMPI) CY SEP 25-28, 2016 CL Univ Edinburgh, Edinburgh, SCOTLAND SP EPCC, SGI, Altair, INRIA, Ho Comp, Cray, EPiGRAM, Allinea HO Univ Edinburgh AB The Message Passing Interface (MPI) includes nonblocking collective operations that support additional overlap between computation and communication. These new operations enable complex data movement between large numbers of processes. However, their asynchronous behavior hides and complicates the detection of defects in their use. We highlight a lack of correctness tool support for these operations and extend the MUST runtime MPI correctness tool to alleviate this complexity. We introduce a classification to summarize the types of correctness analyses that are applicable to MPI's nonblocking collectives. We identify complex wait-for dependencies in deadlock situations and incorrect use of communication buffers as the most challenging types of usage errors. We devise, demonstrate, and evaluate the applicability of correctness analyses for these errors. A scalable analysis mechanism allows our runtime approach to scale with the application. Benchmark measurements highlight the scalability and applicability of our approach at up to 4,096 application processes and with low overhead. C1 [Hilbrich, Tobias; Weber, Matthias; Nagel, Wolfgang E.] Tech Univ Dresden, D-01062 Dresden, Germany. [Protze, Joachim] Rhein Westfal TH Aachen, JARA High Performance Comp, D-52056 Aachen, Germany. [de Supinski, Bronis R.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. RP Hilbrich, T (reprint author), Tech Univ Dresden, D-01062 Dresden, Germany. EM tobias.hilbrich@tu-dresden.de; matthias.weber@tu-dresden.de; protze@itc.rwth-aachen.de; bronis@llnl.gov; wolfgang.nagel@tu-dresden.de NR 16 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 978-1-4503-4234-6 PY 2016 BP 188 EP 197 DI 10.1145/2966884.2966906 PG 10 WC Computer Science, Theory & Methods SC Computer Science GA BG6MO UT WOS:000390603300020 ER PT J AU Rasmussen, S Schulz, M Mohror, K AF Rasmussen, Soren Schulz, Martin Mohror, Kathryn GP ACM TI Allowing MPI tools builders to forget about Fortran SO PROCEEDINGS OF THE 23RD EUROPEAN MPI USERS' GROUP MEETING (EUROMPI 2016) LA English DT Proceedings Paper CT 23rd European MPI Users Group Meeting (EuroMPI) CY SEP 25-28, 2016 CL Univ Edinburgh, Edinburgh, SCOTLAND SP EPCC, SGI, Altair, INRIA, Ho Comp, Cray, EPiGRAM, Allinea HO Univ Edinburgh DE MPI; Tools; Profiling; Code Generation AB C tool writers are forced to deal with a number of Fortran and C interoperability issues when intercepting MPI routines and completing them with PMPI. The C based tool has to intercept the Fortran MPI routines and marshal arguments between C and Fortran, which is not always easily done from C. Further, there is a subset of MPI routines that need to call PMPI from the original language they were called from, forcing the C tool to go back to a Fortran layer. Combined, these issues make writing tools that apply to C and Fortran applications both error-prone and time consuming. In this paper, we present WMPI, a wrapper generator that solves these issues by generating multiple lightweight wrappers to handle the marshalling, correct language specific reentry and other incompatibilities. C1 [Rasmussen, Soren] Univ Oregon, Eugene, OR 97403 USA. [Schulz, Martin; Mohror, Kathryn] Lawrence Livermore Natl Lab, Livermore, CA USA. RP Rasmussen, S (reprint author), Univ Oregon, Eugene, OR 97403 USA. EM srasmus2@uoregon.edu; schulzm@llnl.gov; kathryn@llnl.gov NR 5 TC 0 Z9 0 U1 1 U2 1 PU ASSOC COMPUTING MACHINERY PI NEW YORK PA 1515 BROADWAY, NEW YORK, NY 10036-9998 USA BN 978-1-4503-4234-6 PY 2016 BP 208 EP 211 DI 10.1145/2966884.2966889 PG 4 WC Computer Science, Theory & Methods SC Computer Science GA BG6MO UT WOS:000390603300022 ER PT J AU Koniges, A Cook, B Deslippe, J Kurth, T Shan, HZ AF Koniges, Alice Cook, Brandon Deslippe, Jack Kurth, Thorston Shan, Hongzhang GP ACM TI MPI usage at NERSC: Present and Future SO PROCEEDINGS OF THE 23RD EUROPEAN MPI USERS' GROUP MEETING (EUROMPI 2016) LA English DT Proceedings Paper CT 23rd European MPI Users Group Meeting (EuroMPI) CY SEP 25-28, 2016 CL Univ Edinburgh, Edinburgh, SCOTLAND SP EPCC, SGI, Altair, INRIA, Ho Comp, Cray, EPiGRAM, Allinea HO Univ Edinburgh DE MPI; programming models C1 [Koniges, Alice; Cook, Brandon; Deslippe, Jack; Kurth, Thorston] Lawrence Berkeley Natl Lab, Natl Energy Res Sci Comp Ctr, Berkeley, CA 94720 USA. [Shan, Hongzhang] Lawrence Berkeley Natl Lab, Computat Res Div, Berkeley, CA USA. RP Koniges, A (reprint author), Lawrence Berkeley Natl Lab, Natl Energy Res Sci Comp Ctr, Berkeley, CA 94720 USA. EM aekoniges@lbl.gov; bgcook@lbl.gov; jrdeslippe@lbl.gov; tkurth@lbl.gov; hshan@lbl.gov NR 0 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 978-1-4503-4234-6 PY 2016 BP 217 EP 217 DI 10.1145/2966884.2966894 PG 1 WC Computer Science, Theory & Methods SC Computer Science GA BG6MO UT WOS:000390603300026 ER PT J AU Shen, B Shrestha, S Abdelaziz, O AF Shen, Bo Shrestha, Som Abdelaziz, Omar TI Model validations for low-global warming potential refrigerants in mini-split air-conditioning units SO SCIENCE AND TECHNOLOGY FOR THE BUILT ENVIRONMENT LA English DT Article ID HORIZONTAL TUBES; CONDENSATION AB To identify low global warming potential refrigerants to replace R-22 and R-410A, extensive experimental evaluations were conducted for multiple candidates of refrigerant at the standard test conditions and at high-ambient conditions with outdoor temperature varying from 27.8 degrees C to 55.0 degrees C. In the study, R-22 was compared to propane (R-290), DR-3, ARM-20B, N-20B, and R-444B in a mini split air-conditioning unit originally designed for R-22; R-410A was compared to R-32, DR-55, ARM-71A, L41-2 (R-447A) in a mini split-unit designed for R-410A. To reveal the physics behind the measured performance results, thermodynamic properties of the alternative refrigerants were analysed. In addition, the experimental data were used to calibrate a physics-based equipment model, for example, ORNL heat pump design model. The calibrated model translated the experimental results to key calculated parameters, i.e. compressor efficiencies and refrigerant side two-phase heat transfer coefficients, corresponding to each refrigerant. These calculated values provide scientific insights on the performance of the alternative refrigerants and are useful for other applications beyond mini split air-conditioning units. C1 [Shen, Bo; Shrestha, Som; Abdelaziz, Omar] Oak Ridge Natl Lab, Bldg Technol Res & Integrat Ctr, One Bethel Valley Rd,POB 2008,MS-6070, Oak Ridge, TN 37831 USA. RP Abdelaziz, O (reprint author), Oak Ridge Natl Lab, Bldg Technol Res & Integrat Ctr, One Bethel Valley Rd,POB 2008,MS-6070, Oak Ridge, TN 37831 USA. EM abdelazizoa@ornl.gov FU U.S. Department of Energy [DE-AC05-00OR22725] FX This manuscript has been authored by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy. The United States Government retains, and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a nonexclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes. The Department of Energy will provide public access to these results of federally sponsored research in accordance with the DOEPublic Access Plan (http://energy.gov/downloads/doe-public-access-plan). NR 17 TC 0 Z9 0 U1 0 U2 0 PU TAYLOR & FRANCIS INC PI PHILADELPHIA PA 530 WALNUT STREET, STE 850, PHILADELPHIA, PA 19106 USA SN 2374-4731 EI 2374-474X J9 SCI TECHNOL BUILT EN JI Sci. Technol. Built Environ. PY 2016 VL 22 IS 8 BP 1254 EP 1262 DI 10.1080/23744731.2016.1208538 PG 9 WC Thermodynamics; Construction & Building Technology; Engineering, Mechanical SC Thermodynamics; Construction & Building Technology; Engineering GA EF6EO UT WOS:000390424100016 ER PT S AU Duncan, N Saint-Hilaire, P Shih, AY Hurford, GJ Bain, HM Amman, M Mochizuki, BA Hoberman, J Olson, J Maruca, BA Godbole, NM Smith, DM Sample, J Kelley, NA Zoglauer, A Caspi, A Kaufmann, P Boggs, S Lin, RP AF Duncan, Nicole Saint-Hilaire, P. Shih, A. Y. Hurford, G. J. Bain, H. M. Amman, M. Mochizuki, B. A. Hoberman, J. Olson, J. Maruca, B. A. Godbole, N. M. Smith, D. M. Sample, J. Kelley, N. A. Zoglauer, A. Caspi, A. Kaufmann, P. Boggs, S. Lin, R. P. BE DenHerder, JWA Takahashi, T Bautz, M TI First flight of the Gamma-Ray Imager/Polarimeter for Solar flares (GRIPS) instrument SO SPACE TELESCOPES AND INSTRUMENTATION 2016: ULTRAVIOLET TO GAMMA RAY SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Space Telescopes and Instrumentation - Ultraviolet to Gamma Ray CY JUN 26-JUL 01, 2016 CL Edinburgh, SCOTLAND SP SPIE DE GRIPS; solar flare; Sun; gamma-ray; HXR; hard x-ray; balloon; LDB ID RHESSI AB The Gamma-Ray Imager/Polarimeter for Solar flares (GRIPS) instrument is a balloon-borne telescope designed to study solar-flare particle acceleration and transport. We describe GRIPS's first Antarctic long-duration flight in January 2016 and report preliminary calibration and science results. Electron and ion dynamics, particle abundances and the ambient plasma conditions in solar flares can be understood by examining hard X-ray (HXR) and gamma-ray emission (20 keV to 10 MeV). Enhanced imaging, spectroscopy and polarimetry of flare emissions in this energy range are needed to study particle acceleration and transport questions. The GRIPS instrument is specifically designed to answer questions including: What causes the spatial separation between energetic electrons producing hard X-rays and energetic ions producing gamma-ray lines? How anisotropic are the relativistic electrons, and why can they dominate in the corona? How do the compositions of accelerated and ambient material vary with space and time, and why? GRIPS's key technological improvements over the current solar state of the art at HXR/gamma-ray energies, the Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI), include 3D position-sensitive germanium detectors (3D-GeDs) and a single-grid modulation collimator, the multi-pitch rotating modulator (MPRM). The 3D-GeDs have spectral FWHM resolution of a few hundred keV and spatial resolution <1 mm(3). For photons that Compton scatter, usually greater than or similar to 150 keV, the energy deposition sites can be tracked, providing polarization measurements as well as enhanced background reduction through Compton imaging. Each of GRIPS's detectors has 298 electrode strips read out with ASIC/FPGA electronics. In GRIPS's energy range, indirect imaging methods provide higher resolution than focusing optics or Compton imaging techniques. The MPRM grid-imaging system has a single-grid design which provides twice the throughput of a bi-grid imaging system like RHESSI. The grid is composed of 2.5 cm deep tungsten-copper slats, and quasi-continuous FWHM angular coverage from 12.5-162 arcsecs are achieved by varying the slit pitch between 1-13 mm. This angular resolution is capable of imaging the separate magnetic loop footpoint emissions in a variety of flare sizes. In comparison, RHESSI's 35-arcsec resolution at similar energies makes the footpoints resolvable in only the largest flares. C1 [Duncan, Nicole] Univ Calif Berkeley, 366 Leconte Hall, Berkeley, CA 94720 USA. [Duncan, Nicole; Saint-Hilaire, P.; Hurford, G. J.; Bain, H. M.; Mochizuki, B. A.; Hoberman, J.; Olson, J.; Maruca, B. A.; Godbole, N. M.; Kelley, N. A.; Zoglauer, A.; Boggs, S.; Lin, R. P.] Univ Calif Berkeley, Space Sci Lab, 7 Gauss Way, Berkeley, CA USA. [Shih, A. Y.] NASA, Heliophys Sci Div, Goddard SFC, Greenbelt, MD 20771 USA. [Amman, M.] Lawrence Berkeley Natl Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA. [Maruca, B. A.] Univ Delaware, Dept Phys & Astron, 4 Kent Way, Newark, DE 19716 USA. [Smith, D. M.] UC Santa Cruz, Dept Phys, 1156 High St, Santa Cruz, CA 95064 USA. [Sample, J.] Montana State Univ, Dept Phys, EPS Bldg, Bozeman, MT 59717 USA. [Caspi, A.] Southwest Res Inst, 1050 Walnut St,Suite 300, Boulder, CO 80302 USA. [Kaufmann, P.] Univ Presbiteriana Mackenzie, Sao Paulo, SP, Brazil. RP Duncan, N (reprint author), Univ Calif Berkeley, 366 Leconte Hall, Berkeley, CA 94720 USA.; Duncan, N (reprint author), Univ Calif Berkeley, Space Sci Lab, 7 Gauss Way, Berkeley, CA USA. EM nicoleduncan@berkeley.edu; pascal@ssl.berkeley.edu OI Caspi, Amir/0000-0001-8702-8273 NR 22 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 978-1-5106-0189-5; 978-1-5106-0190-1 J9 PROC SPIE PY 2016 VL 9905 AR UNSP 99052Q DI 10.1117/12.2233859 PN 1 PG 17 WC Instruments & Instrumentation; Optics SC Instruments & Instrumentation; Optics GA BG2WP UT WOS:000387731500078 ER PT S AU Eckart, ME Adams, JS Boyce, KR Brown, GV Chiao, MP Fujimoto, R Haas, D den Herder, JW Ishisaki, Y Kelley, RL Kilbourne, CA Leutenegger, MA McCammon, D Mitsuda, K Porter, FS Sato, K Sawadak, M Seta, H Sneiderman, GA Szymkowiak, AE Takei, Y Tashiro, M Tsujimoto, M de Vries, CP Watanabe, T Yamada, S Yamasaki, NY AF Eckart, M. E. Adams, J. S. Boyce, K. R. Brown, G. V. Chiao, M. P. Fujimoto, R. Haas, D. den Herder, J. W. Ishisaki, Y. Kelley, R. L. Kilbourne, C. A. Leutenegger, M. A. McCammon, D. Mitsuda, K. Porter, F. S. Sato, K. Sawadak, M. Seta, H. Sneiderman, G. A. Szymkowiak, A. E. Takei, Y. Tashiro, M. Tsujimoto, M. de Vries, C. P. Watanabe, T. Yamada, S. Yamasaki, N. Y. BE DenHerder, JWA Takahashi, T Bautz, M TI Ground calibration of the Astro-H (Hitomi) soft x-ray spectrometer SO SPACE TELESCOPES AND INSTRUMENTATION 2016: ULTRAVIOLET TO GAMMA RAY SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Space Telescopes and Instrumentation - Ultraviolet to Gamma Ray CY JUN 26-JUL 01, 2016 CL Edinburgh, SCOTLAND SP SPIE DE x-ray spectroscopy; microcalorimeter; detectors; calibration ID SCATTERING; ATTENUATION; TABULATION; Z=1-92 AB The Astro-H (Hitomi) Soft X-ray Spectrometer (SXS) was a pioneering imaging x-ray spectrometer with 5 eV energy resolution at 6 keV. The instrument used a microcalorimeter array at the focus of a high-throughput soft x-ray telescope to enable high-resolution non-dispersive spectroscopy in the soft x-ray waveband (0 : 3 12 keV). We present the suite of ground calibration measurements acquired from 2012{2015, including characterization of the detector system, anti-coincidence detector, optical blocking filters, and filter-wheel filters. The calibration of the 36-pixel silicon thermistor microcalorimeter array includes parameterizations of the energy gain scale and line spread function for each event grade over a range of instrument operating conditions, as well as quantum efficiency measurements. The x-ray transmission of the set of five Al/polyimide thin-film optical blocking filters mounted inside the SXS dewar has been modeled based on measurements at synchrotron beamlines, including with high spectral resolution at the C, N, O, and Al K-edges. In addition, we present the x-ray transmission of the dewar gate valve and of the filters mounted on the SXS filter wheel (external to the dewar), including beryllium, polyimide, and neutral density filters. C1 [Eckart, M. E.; Adams, J. S.; Chiao, M. P.; Kelley, R. L.; Kilbourne, C. A.; Leutenegger, M. A.; Porter, F. S.; Watanabe, T.] NASA, Goddard Space Flight Ctr, Xray Astrophys Lab, Greenbelt, MD 20771 USA. [Adams, J. S.; Chiao, M. P.; Leutenegger, M. A.] Univ Maryland Baltimore Cty, CRESST, Baltimore, MD 21250 USA. [Boyce, K. R.; Sneiderman, G. A.] NASA, Goddard Space Flight Ctr, Syst Engn, Greenbelt, MD 20771 USA. [Brown, G. V.] Lawrence Livermore Natl Lab, Div Phys, Livermore, CA 94550 USA. [Fujimoto, R.] Kanazawa Univ, Kanazawa, Ishikawa 9201192, Japan. [Haas, D.; den Herder, J. W.; de Vries, C. P.] SRON Netherlands Inst Space Res, Utrecht, Netherlands. [Ishisaki, Y.; Yamada, S.] Tokyo Metropolitan Univ, Dept Phys, Hachioji, Tokyo 1920397, Japan. [McCammon, D.] Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA. [Mitsuda, K.; Takei, Y.; Tsujimoto, M.; Yamasaki, N. Y.] JAXA, Inst Space & Astronaut Sci, Sagamihara, Kanagawa 2525210, Japan. [Sato, K.] Tokyo Univ Sci, Dept Phys, Shinjuku Ku, Tokyo 1628601, Japan. [Sawadak, M.] Aoyama Gakuin Univ, Dept Math & Phys, Sagamihara, Kanagawa 2525258, Japan. [Szymkowiak, A. E.] Yale Univ, Dept Astron, New Haven, CT 06520 USA. [Tashiro, M.] Saitama Univ, Sakura Ku, Saitama 3388570, Japan. [Watanabe, T.] Univ Maryland, CRESST, College Pk, MD 20742 USA. RP Eckart, ME (reprint author), NASA, Goddard Space Flight Ctr, Xray Astrophys Lab, Greenbelt, MD 20771 USA. EM Megan.E.Eckart@nasa.gov NR 29 TC 0 Z9 0 U1 0 U2 0 PU SPIE-INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA SN 0277-786X BN 978-1-5106-0189-5; 978-1-5106-0190-1 J9 PROC SPIE PY 2016 VL 9905 AR UNSP 99053W DI 10.1117/12.2233053 PN 1 PG 23 WC Instruments & Instrumentation; Optics SC Instruments & Instrumentation; Optics GA BG2WP UT WOS:000387731500116 ER PT S AU Feroci, M Bozzo, E Brandt, S Hernanz, M van der Klis, M Liu, LP Orleanski, P Pohl, M Santangelo, A Schanne, S Stella, L Takahashi, T Tamura, H Watts, A Wilms, J Zane, S Zhang, SN Bhattacharyya, S Agudo, I Ahangarianabhari, M Albertus, C Alford, M Alpar, A Altamirano, D Alvarez, L Amati, L Amoros, C Andersson, N Antonelli, A Argan, A Artigue, R Artigues, B Atteia, JL Azzarello, P Bakala, P Ballantyne, DR Baldazzi, G Baldo, M Balman, S Barbera, M van Baren, C Barret, D Baykal, A Begelman, M Behar, E Behar, O Belloni, T Bellutti, P Bernardini, F Bertuccio, G Bianchi, S Bianchini, A Binko, P Blay, P Bocchino, F Bode, M Bodin, P Bombaci, I Bidaud, JMB Borghi, G Boutloukos, S Bouyjou, F Bradley, L Braga, J Briggs, MS Brown, E Buballa, M Bucciantini, N Burderi, L Burgay, M Bursa, M Budtz-Jorgensen, C Cackett, E Cadoux, FR Cais, P Caliandro, GA Campana, R Campana, S Cao, X Capitanio, F Casares, J Casella, P Castro-Tirado, AJ Cavazzutim, E Cavechi, Y Celestin, S Cerda-Duran, P Chakrabarty, D Chamel, N Chateau, F Chen, C Chen, Y Chen, Y Chenevez, J Chernyakova, M Coker, J Cole, R Collura, A Coriat, M Cornelisse, R Costamante, L Cros, A Cui, W Cumming, A Cusumano, G Czerny, B D'Ai, A D'Ammando, F D'Elia, V Dai, Z Del Monte, E De Luca, A De Martino, D Dercksen, JPC De Pasquale, M De Rosa, A Del Santo, M Di Cosimol, S Degenaar, N den Herder, JW Diebold, S Di Salvo, T Dong, Y Donnarumma, I Doroshenko, V Doyle, G Drake, SA Durant, M Emmanoulopoulos, D Enoto, T Erkut, MH Esposito, P Evangelista, Y Fabian, A Falanga, M Favre, Y Feldman, C Fender, R Peng, H Evangelista, V Ferrigno, C Ficorella, F Finger, M Finger, MH Fraser, GW Frericks, M Fullekrug, M Fuschino, F Gabler, M Galloway, DK Sanchez, JLG Gandhi, P Gao, Z Garcia-Berro, E Gendre, B Gevin, O Gezari, S Giles, AB Gilfanov, M Giommi, P Giovannini, G Giroletti, M Gogus, E Goldwurm, A Goluchova, K Gotz, D Gou, L Gouiffes, C Grandi, P Grassi, M Greiner, J Grinberg, V Groot, P Gschwender, M Gualtieri, L Guedel, M Guidorzi, C Guy, L Haas, D Haensel, P Hailey, M Hamuguchi, K Hansen, F Hartmann, DH Haswell, CA Hebeler, K Heger, A Hempel, M Hermsen, W Homan, J Hornstrup, A Hudec, R Huovelin, J Huppenkothen, D Inam, SC Ingram, A in't Zand, JJM Israel, G Iwasawa, K Izzo, L Jacobs, HM Jetter, F Johannsen, T Jacobs, HM Jenke, PA Jonker, P Jose, J Kaaret, P Kalamkar, M Kalemci, E Kanbach, G Karas, V Karelin, D Kataria, D Keek, L Kennedy, T Klochkov, D Kluzniak, W Koerding, E Kokkotas, K Komossa, S Korpela, S Kouveliotou, C Kowalski, AF Kreykenbohm, I Kuiper, LM Kunneriath, D Kurkela, A Kuvvetli, I La Franca, F Labanti, C Lai, D Lamb, FK Lachaud, C Laubert, PP Lebrun, F Li, X Liang, E Limousin, O Lin, D Linares, M Lodato, G Lodato, G Longo, F Lu, F Lund, N Maccarone, TJ Macera, D Maestre, S Mahmoodifar, S Maier, D Malcovati, P Malzac, J Malone, C Mandel, I Mangano, V Manousakis, A Marelli, JM Margueron, J Marisaldi, M Markoff, SB Markowitz, A Marinucci, A Martindale, A Martinez, G McHardy, IM Medina-Tanco, G Mehdipour, M Melatos, A Mendez, M Mereghetti, S Migliari, S Mignani, R Michalska, M Mihara, T Miller, MC Miller, JM Mineo, T Miniuttill, G Morsink, S Motch, C Motta, S Mouchet, M Mouret, G Mulacova, J Muleri, F Munoz-Darias, T Negueruela, I Neilsen, J Neubert, T Norton, AJ Nowak, M Nucita, A O'Brien, P Oertel, M Olsen, PEH Orienti, M Orio, M Orlandini, M Osborne, JP Osten, R Ozel, F Pacciani, L Paerels, F Paltani, S Paolillo, M Papadakis, I Papitto, A Paragi, Z Paredes, JM Patruno, A Paul, B Pederiva, F Perinati, E Pellizzoni, A Penacchioni, AV Peretz, U Perez, MA Perez-Torres, M Peterson, BM Petracek, V Picciotto, A Piemonte, C Pittoril, C Pons, J Portell, J Possenti, A Postnov, K Poutanen, J Prakash, M Prandoni, I Le Provost, H Psaltis, D Pye, J Qu, J Rambaud, D Ramon, P Ramsay, G Rapisarda, M Rachevski, A Rashevskaya, I Ray, PS Rea, N Reddy, S Reig, P Aranda, MR Remillard, R Reynolds, C Rezzolla, L Ribo, M de la Rie, R Riggio, A Rios, A Rischke, DH Rodriguez-Gil, P Rodriguez, J Rohlfs, R Romano, P Rossi, EMR Rozanska, A Rousseau, A Rudak, B Russell, DM Ryde, F Sabau-Graziati, L Sakamoto, T Sala, G Salvaterra, R Salvetti, D Sanna, A Sandberg, J Savolainen, T Scaringi, S Schaffner-Bielich, J Schatz, H Schee, J Schmid, C Serino, M Shakura, N Shore, S Schnittman, JD Schneider, R Schwenk, A Schwope, AD Sedrakian, A Seyler, JY Shearer, A Slowikowska, A Sims, M Smith, A Smith, DM Smith, PJ Sobolewska, M Sochora, V Soffitta, P Soleri, P Song, L Spencer, A Stamerra, A Stappers, B Staubert, R Steiner, AW Stergioulas, N Stevens, AL Stratta, G Strohmayer, TE Stuchlik, Z Suchy, S Suleimanovi, V Tamburini, F Tauris, T Tavecchio, F Tenzer, C Thielemann, FK Tiengo, A Tolos, L Tombesi, F Tomsick, J Torok, G Torrejon, JM Torres, DF Torresi, E Tramacere, A Traulsen, I Trois, A Turolla, R Turriziani, S Type, S Uter, P Uttley, P Vacchi, A Varniere, P Vaughan, S Vercellone, S Vietri, M Vincent, FH Vrba, V Walton, D Wang, J Wang, Z Watanabe, S Wawrzaszek, R Webb, N Weinberg, N Wende, H Wheatley, P Wijers, R Wijnands, R Wille, M Wilson-Hodge, CA Winter, B Walk, SJ Wood, K Woosley, SE Wu, X Xiao, L Xu, R Yu, W Yuan, F Yuan, W Yuan, Y Zampa, G Zampa, N Zampieri, L Zdunik, L Zdziarski, A Zech, A Zhang, B Zhang, C Zhang, S Zingale, M Zorzi, N Zwart, F AF Feroci, M. Bozzo, E. Brandt, S. Hernanz, M. van der Klis, M. Liu, L. -P. Orleanski, P. Pohl, M. Santangelo, A. Schanne, S. Stella, L. Takahashi, T. Tamura, H. Watts, A. Wilms, J. Zane, S. Zhang, S. -N. Bhattacharyya, S. Agudo, I. Ahangarianabhari, M. Albertus, C. Alford, M. Alpar, A. Altamirano, D. Alvarez, L. Amati, L. Amoros, C. Andersson, N. Antonelli, A. Argan, A. Artigue, R. Artigues, B. Atteia, J. -L. Azzarello, P. Bakala, P. Ballantyne, D. R. Baldazzi, G. Baldo, M. Balman, S. Barbera, M. van Baren, C. Barret, D. Baykal, A. Begelman, M. Behar, E. Behar, O. Belloni, T. Bellutti, P. Bernardini, F. Bertuccio, G. Bianchi, S. Bianchini, A. Binko, P. Blay, P. Bocchino, F. Bode, M. Bodin, P. Bombaci, I. Bidaud, J. -M. Bonnet Borghi, G. Boutloukos, S. Bouyjou, F. Bradley, L. Braga, J. Briggs, M. S. Brown, E. Buballa, M. Bucciantini, N. Burderi, L. Burgay, M. Bursa, M. Budtz-Jorgensen, C. Cackett, E. Cadoux, F. R. Cais, P. Caliandro, G. A. Campana, R. Campana, S. Cao, X. Capitanio, F. Casares, J. Casella, P. Castro-Tirado, A. J. Cavazzutim, E. Cavechi, Y. Celestin, S. Cerda-Duran, P. Chakrabarty, D. Chamel, N. Chateau, F. Chen, C. Chen, Y. Chen, Y. Chenevez, J. Chernyakova, M. Coker, J. Cole, R. Collura, A. Coriat, M. Cornelisse, R. Costamante, L. Cros, A. Cui, W. Cumming, A. Cusumano, G. Czerny, B. D'Ai, A. D'Ammando, F. D'Elia, V. Dai, Z. Del Monte, E. De Luca, A. De Martino, D. Dercksen, J. P. C. De Pasquale, M. De Rosa, A. Del Santo, M. Di Cosimol, S. Degenaar, N. den Herder, J. W. Diebold, S. Di Salvo, T. Dong, Y. Donnarumma, I. Doroshenko, V. Doyle, G. Drake, S. A. Durant, M. Emmanoulopoulos, D. Enoto, T. Erkut, M. H. Esposito, P. Evangelista, Y. Fabian, A. Falanga, M. Favre, Y. Feldman, C. Fender, R. Peng, H. Evangelista, V. Ferrigno, C. Ficorella, F. Finger, M. Finger, M. H. Fraser, G. W. Frericks, M. Fullekrug, M. Fuschino, F. Gabler, M. Galloway, D. K. Galvez Sanchez, J. L. Gandhi, P. Gao, Z. Garcia-Berro, E. Gendre, B. Gevin, O. Gezari, S. Giles, A. B. Gilfanov, M. Giommi, P. Giovannini, G. Giroletti, M. Gogus, E. Goldwurm, A. Goluchova, K. Gotz, D. Gou, L. Gouiffes, C. Grandi, P. Grassi, M. Greiner, J. Grinberg, V. Groot, P. Gschwender, M. Gualtieri, L. Guedel, M. Guidorzi, C. Guy, L. Haas, D. Haensel, P. Hailey, M. Hamuguchi, K. Hansen, F. Hartmann, D. H. Haswell, C. A. Hebeler, K. Heger, A. Hempel, M. Hermsen, W. Homan, J. Hornstrup, A. Hudec, R. Huovelin, J. Huppenkothen, D. Inam, S. C. Ingram, A. in't Zand, J. J. M. Israel, G. Iwasawa, K. Izzo, L. Jacobs, H. M. Jetter, F. Johannsen, T. Jacobs, H. M. Jenke, P. A. Jonker, P. Jose, J. Kaaret, P. Kalamkar, M. Kalemci, E. Kanbach, G. Karas, V. Karelin, D. Kataria, D. Keek, L. Kennedy, T. Klochkov, D. Kluzniak, W. Koerding, E. Kokkotas, K. Komossa, S. Korpela, S. Kouveliotou, C. Kowalski, A. F. Kreykenbohm, I. Kuiper, L. M. Kunneriath, D. Kurkela, A. Kuvvetli, I. La Franca, F. Labanti, C. Lai, D. Lamb, F. K. Lachaud, C. Laubert, P. P. Lebrun, F. Li, X. Liang, E. Limousin, O. Lin, D. Linares, M. Lodato, G. Lodato, G. Longo, F. Lu, F. Lund, N. Maccarone, T. J. Macera, D. Maestre, S. Mahmoodifar, S. Maier, D. Malcovati, P. Malzac, J. Malone, C. Mandel, I. Mangano, V. Manousakis, A. Marelli, J. MargueronM. Margueron, J. Marisaldi, M. Markoff, S. B. Markowitz, A. Marinucci, A. Martindale, A. Martinez, G. McHardy, I. M. Medina-Tanco, G. Mehdipour, M. Melatos, A. Mendez, M. Mereghetti, S. Migliari, S. Mignani, R. Michalska, M. Mihara, T. Miller, M. C. Miller, J. M. Mineo, T. Miniuttill, G. Morsink, S. Motch, C. Motta, S. Mouchet, M. Mouret, G. Mulacova, J. Muleri, F. Munoz-Darias, T. Negueruela, I. Neilsen, J. Neubert, T. Norton, A. J. Nowak, M. Nucita, A. O'Brien, P. Oertel, M. Olsen, P. E. H. Orienti, M. Orio, M. Orlandini, M. Osborne, J. P. Osten, R. Ozel, F. Pacciani, L. Paerels, F. Paltani, S. Paolillo, M. Papadakis, I. Papitto, A. Paragi, Z. Paredes, J. M. Patruno, A. Paul, B. Pederiva, F. Perinati, E. Pellizzoni, A. Penacchioni, A. V. Peretz, U. Perez, M. A. Perez-Torres, M. Peterson, B. M. Petracek, V. Picciotto, A. Piemonte, C. Pittoril, C. Pons, J. Portell, J. Possenti, A. Postnov, K. Poutanen, J. Prakash, M. Prandoni, I. Le Provost, H. Psaltis, D. Pye, J. Qu, J. Rambaud, D. Ramon, P. Ramsay, G. Rapisarda, M. Rachevski, A. Rashevskaya, I. Ray, P. S. Rea, N. Reddy, S. Reig, P. Reina Aranda, M. Remillard, R. Reynolds, C. Rezzolla, L. Ribo, M. de la Rie, R. Riggio, A. Rios, A. Rischke, D. H. Rodriguez-Gil, P. Rodriguez, J. Rohlfs, R. Romano, P. Rossi, E. M. R. Rozanska, A. Rousseau, A. Rudak, B. Russell, D. M. Ryde, F. Sabau-Graziati, L. Sakamoto, T. Sala, G. Salvaterra, R. Salvetti, D. Sanna, A. Sandberg, J. Savolainen, T. Scaringi, S. Schaffner-Bielich, J. Schatz, H. Schee, J. Schmid, C. Serino, M. Shakura, N. Shore, S. Schnittman, J. D. Schneider, R. Schwenk, A. Schwope, A. D. Sedrakian, A. Seyler, J. -Y. Shearer, A. Slowikowska, A. Sims, M. Smith, A. Smith, D. M. Smith, P. J. Sobolewska, M. Sochora, V. Soffitta, P. Soleri, P. Song, L. Spencer, A. Stamerra, A. Stappers, B. Staubert, R. Steiner, A. W. Stergioulas, N. Stevens, A. L. Stratta, G. Strohmayer, T. E. Stuchlik, Z. Suchy, S. Suleimanovi, V. Tamburini, F. Tauris, T. Tavecchio, F. Tenzer, C. Thielemann, F. K. Tiengo, A. Tolos, L. Tombesi, F. Tomsick, J. Torok, G. Torrejon, J. M. Torres, D. F. Torresi, E. Tramacere, A. Traulsen, I. Trois, A. Turolla, R. Turriziani, S. Type, S. Uter, P. Uttley, P. Vacchi, A. Varniere, P. Vaughan, S. Vercellone, S. Vietri, M. Vincent, F. H. Vrba, V. Walton, D. Wang, J. Wang, Z. Watanabe, S. Wawrzaszek, R. Webb, N. Weinberg, N. Wende, H. Wheatley, P. Wijers, R. Wijnands, R. Wille, M. Wilson-Hodge, C. A. Winter, B. Walk, S. J. Wood, K. Woosley, S. E. Wu, X. Xiao, L. Xu, R. Yu, W. Yuan, F. Yuan, W. Yuan, Y. Zampa, G. Zampa, N. Zampieri, L. Zdunik, L. Zdziarski, A. Zech, A. Zhang, B. Zhang, C. Zhang, S. Zingale, M. Zorzi, N. Zwart, F. BE DenHerder, JWA Takahashi, T Bautz, M TI The LOFT mission concept - A status update SO SPACE TELESCOPES AND INSTRUMENTATION 2016: ULTRAVIOLET TO GAMMA RAY SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Space Telescopes and Instrumentation - Ultraviolet to Gamma Ray CY JUN 26-JUL 01, 2016 CL Edinburgh, SCOTLAND SP SPIE DE X-ray astronomy; Silicon detectors; timing; spectroscopy AB The Large Observatory For x-ray Timing (LOFT) is a mission concept which was proposed to ESA as M3 and M4 candidate in the framework of the Cosmic Vision 2015-2025 program. Thanks to the unprecedented combination of effective area and spectral resolution of its main instrument and the uniquely large field of view of its wide field monitor, LOFT will be able to study the behaviour of matter in extreme conditions such as the strong gravitational field in the innermost regions close to black holes and neutron stars and the supra-nuclear densities in the interiors of neutron stars. The science payload is based on a Large Area Detector (LAD, > 8m(2) effective area, 2-30 keV, 240 eV spectral resolution, 1 degree collimated field of view) and a Wide Field Monitor (WFM, 2-50 keV, 4 steradian field of view, 1 arcmin source location accuracy, 300 eV spectral resolution). The WFM is equipped with an on-board system for bright events (e. g., GRB) localization. The trigger time and position of these events are broadcast to the ground within 30 s from discovery. In this paper we present the current technical and programmatic status of the mission. C1 [Feroci, M.; Argan, A.; Campana, R.; Capitanio, F.; Del Monte, E.; De Rosa, A.; Del Santo, M.; Di Cosimol, S.; Donnarumma, I.; Evangelista, Y.; Iwasawa, K.; Muleri, F.; Pacciani, L.; Rapisarda, M.; Soffitta, P.; Trois, A.] IAPS INAF, Via Fosso Cavaliere 100, I-00133 Rome, Italy. [Feroci, M.; Campana, R.; Evangelista, Y.; Muleri, F.; Pacciani, L.; Rapisarda, M.] Ist Nazl Fis Nucl, Sez Roma Tor Vergata, Via Ric Sci 1, I-00133 Rome, Italy. [van Baren, C.; Dercksen, J. P. C.; den Herder, J. W.; Frericks, M.; Haas, D.; Hermsen, W.; in't Zand, J. J. M.; Jacobs, H. M.; Jonker, P.; Kuiper, L. M.; Laubert, P. P.; Mehdipour, M.; de la Rie, R.; Zwart, F.] SRON, Sorbonnelaan 2, NL-3584 CA Utrecht, Netherlands. [Bozzo, E.; Azzarello, P.; Binko, P.; Ferrigno, C.; Guy, L.; Paltani, S.; Rohlfs, R.; Tramacere, A.] Univ Geneva, ISDC, Chemin Ecogia 16, CH-1290 Versoix, Switzerland. [Alpar, A.; Gogus, E.; Kalemci, E.] Sabanci Univ, TR-34956 Istanbul, Turkey. [van der Klis, M.; Watts, A.; Cavechi, Y.; Ingram, A.; Markoff, S. B.; Stevens, A. L.; Wijers, R.; Wijnands, R.] Univ Amsterdam, Astron Inst Anton Pannekoek, Sci Pk 904, NL-1098 XH Amsterdam, Netherlands. [Hernanz, M.; Alvarez, L.; Artigues, B.; Caliandro, G. A.; Galvez Sanchez, J. L.; Garcia-Berro, E.; Karelin, D.; Papitto, A.; Portell, J.; Rea, N.; Sala, G.; Tolos, L.] IEEC CSIC UPC UB, Carrer Gran Capita 2, Barcelona 08034, Spain. [Amati, L.; Fuschino, F.; Grandi, P.; Labanti, C.; Marisaldi, M.; Orlandini, M.; Torresi, E.] INAF IASF Bologna, Via P Gobetti 101, I-40129 Bologna, Italy. [Amoros, C.; Artigue, R.; Atteia, J. -L.; Barret, D.; Coriat, M.; Cros, A.; Lin, D.; Maestre, S.; Malzac, J.; Mouret, G.; Rambaud, D.; Ramon, P.; Webb, N.] IRAP, Ave Colonel Roche,9 BP 44346, Toulouse, France. [Andersson, N.; Gandhi, P.] Univ Southampton, Fac Phys & Appl Sci, Southampton SO17 1BJ, Hants, England. [Antonelli, A.; Cavazzutim, E.; D'Elia, V.; Gendre, B.; Giommi, P.; Pittoril, C.] ASDC, Via Politecn Snc, I-00133 Rome, Italy. [Balman, S.; Baykal, A.] Middle East Tech Univ, Mah Dumlupinar Blvd 1, TR-06800 Ankara, Turkey. [Barbera, M.; D'Ai, A.; Di Salvo, T.] Univ Palermo, Dipartimento Fis, Via Archirafi 36, I-90123 Palermo, Italy. [Belloni, T.; Campana, S.; Tavecchio, F.] INAF OA Brera, Via E Bianchi 46, I-23807 Merate, LC, Italy. [Ahangarianabhari, M.; Bertuccio, G.; Macera, D.] Politecn Milan, Piazza Leonardo da Vinci 32, I-20133 Milan, Italy. [Bianchini, A.; Tamburini, F.; Turolla, R.] Univ Padua, Dept Phys & Astron, Vicolo Osservatorio 3, I-35122 Padua, Italy. [Schanne, S.; Bidaud, J. -M. Bonnet; Bouyjou, F.; Chateau, F.; Gevin, O.; Gotz, D.; Gouiffes, C.; Limousin, O.; Le Provost, H.; Rodriguez, J.] CEA Saclay, DSM IRFU SAp, F-91191 Gif Sur Yvette, France. [Santangelo, A.; Boutloukos, S.; Diebold, S.; Doroshenko, V.; Gschwender, M.; Jetter, F.; Klochkov, D.; Kokkotas, K.; Maier, D.; Perinati, E.; Staubert, R.; Suchy, S.; Suleimanovi, V.; Tenzer, C.; Wende, H.] IAAT Univ Tuebingen, Sand 1, D-72076 Tubingen, Germany. [Braga, J.] INPE, Ave Astronautas 1-758,Jd Granja, BR-12227010 Sao Jose Dos Campos, Brazil. [Brandt, S.; Budtz-Jorgensen, C.; Chenevez, J.; Hansen, F.; Hornstrup, A.; Kuvvetli, I.; Lund, N.; Mulacova, J.; Neubert, T.; Olsen, P. E. H.] Tech Univ Denmark, Natl Space Inst, Elektrovej Bld 327, DK-2800 Lyngby, Denmark. [Iwasawa, K.; Migliari, S.; Paredes, J. M.; Ribo, M.] Univ Barcelona IEEC UB, DAM, Marti & Franques 1, E-08028 Barcelona, Spain. [Iwasawa, K.; Migliari, S.; Paredes, J. M.; Ribo, M.] Univ Barcelona IEEC UB, ICC UB, Marti & Franques 1, E-08028 Barcelona, Spain. [Bucciantini, N.] INAF, Arcetri Observ, Largo Enrico Fermi 5, I-50125 Florence, Italy. [Burderi, L.] Cagliari Univ, Str Prov Sestu,KM 1, I-09042 Monserrato, Italy. [Bursa, M.; Hudec, R.; Karas, V.; Kunneriath, D.; Sochora, V.] Acad Sci Czech Republic, Astron Inst, Fricova 298, CZ-25165 Ondrejov, Czech Republic. [Fabian, A.] Univ Cambridge, Trinity Lane, Cambridge CB2 1TN, England. [Pohl, M.; Cadoux, F. R.; Favre, Y.] Univ Geneva, DPNC, Quai Ernest Ansermet 30, CH-1205 Geneva, Switzerland. [Cais, P.] Lab Astrophys Bordeaux, Rue Observ BP 89, F-33270 Floirac, France. [Stella, L.; Casella, P.; Israel, G.; Kalamkar, M.; Schneider, R.] INAF OA Roma, Via Frascati 33, I-00040 Monte Porzio Catone, Italy. [Chakrabarty, D.; Grinberg, V.; Homan, J.; Neilsen, J.; Nowak, M.; Remillard, R.; Weinberg, N.] MIT, 77 Massachusetts Ave, Cambridge, MA 02139 USA. [Zane, S.; Bradley, L.; Coker, J.; Cole, R.; Hailey, M.; Kataria, D.; Kennedy, T.; Lodato, G.; Mignani, R.; Rousseau, A.; Smith, A.; Smith, P. J.; Spencer, A.; Vacchi, A.; Walton, D.; Winter, B.] Univ Coll London, MSSL, Dorking RH5 6NT, Surrey, England. McGill Univ, 845 Sherbrooke St West, Montreal, PQ H3A 0G4, Canada. [Cumming, A.; De Martino, D.] INAF OA Capodimonte, I-80131 Naples, Italy. [Guidorzi, C.] Univ Ferrara, Via Saragat 1, I-44122 Ferrara, Italy. [Durant, M.] Univ Toronto, Dept Med Biophys, Toronto, ON M4N 3M5, Canada. [Falanga, M.] ISSI Bern, Hallerstr 6, CH-3012 Bern, Switzerland. [Feldman, C.; Fraser, G. W.; Martindale, A.; O'Brien, P.; Osborne, J. P.; Pye, J.; Sims, M.; Vaughan, S.] Univ Leicester, Univ Rd, Leicester LE1 5WW, Leics, England. [Finger, M. H.] Univ Space Res Assoc, 6767 Old Madison Pike,Suite 450, Huntsville, AL 35806 USA. [Galloway, D. K.; Heger, A.] Monash Univ, Sch Phys, Monash Ctr Astrophys, Clayton, Vic 3800, Australia. [Galloway, D. K.; Heger, A.] Monash Univ, Sch Math Sci, Clayton, Vic 3800, Australia. Johns Hopkins Univ, 3400 North Charles St, Baltimore, MD USA. [Giles, A. B.] Univ Tasmania, Private Bag 37, Hobart, Tas 7001, Australia. [Gilfanov, M.] MPA Garching, Karl Schwarzschild Str 1, D-85741 Garching, Germany. Radboud Univ Nijmegen, Heyendaalseweg 135, NL-6500 GL Nijmegen, Netherlands. [Groot, P.; Hartmann, D. H.] Clemson Univ, Clemson, SC 29634 USA. [Haswell, C. A.; Norton, A. J.] Open Univ, Walton Hall, Milton Keynes MK7 6AA, Bucks, England. [Wilson-Hodge, C. A.] NASA, Marshall Space Flight Ctr, Astrophys Off, ZP12, Huntsville, AL 35812 USA. [Huovelin, J.; Korpela, S.] Univ Helsinki, Div Geophys & Astron, Dept Phys, POB 48, FI-00014 Helsinki, Finland. Univ Durham, Stockton Rd, Durham DH1 3UP, England. [Izzo, L.; Penacchioni, A. V.] Sapienza Univ, Ple A Moro 2, I-00185 Rome, Italy. [Izzo, L.; Penacchioni, A. V.] ICRA, Ple A Moro 2, I-00185 Rome, Italy. Univ Iowa, Van Allen Hall, Iowa City, IA 52242 USA. [Brown, E.; Kaaret, P.; Miller, J. M.; Schatz, H.] Michigan State Univ, 567 Wilson Rd, E Lansing, MI 48824 USA. [Czerny, B.; Haensel, P.; Kluzniak, W.; Manousakis, A.; Rozanska, A.; Rudak, B.; Sobolewska, M.; Uter, P.; Vincent, F. H.; Zdunik, L.; Zdziarski, A.] Copernicus Astron Ctr, Bartycka 18, Warsaw, Poland. [Kouveliotou, C.] George Washington Univ, 2121 I St NW, Washington, DC 20052 USA. [Lai, D.] Cornell Univ, Space Bldg, Ithaca, NY 14853 USA. [Lamb, F. K.] Univ Illinois, Dept Phys, 1110 W Green St, Urbana, IL 61801 USA. [Lodato, G.] Univ Milan, Dipartimento Fis, Via Celoria 16, I-20133 Milan, Italy. [Longo, F.] Univ Trieste, Via Alfonso Valerio 32, I-34128 Trieste, Italy. [Grassi, M.; Malcovati, P.] Univ Pavia, Corso Str Nuova 65, I-27100 Pavia, Italy. [Cusumano, G.; De Pasquale, M.; Mineo, T.; Romano, P.; Vercellone, S.] INAF IASF, Via Ugo La Malfa 153, I-90146 Palermo, Italy. [Smith, D. M.; Woosley, S. E.] Univ Calif Santa Cruz, 1156 High St, Santa Cruz, CA 95064 USA. [Bianchi, S.; La Franca, F.; Marinucci, A.] Univ Roma III, Via Vasca Navale 84, I-00146 Rome, Italy. [Melatos, A.] Univ Melbourne, Swanston St, Parkville, Vic 3052, Australia. [Mendez, M.; Sanna, A.; Soleri, P.] Univ Groningen, Kapteyn Astron Inst, POB 800, NL-9700 AV Groningen, Netherlands. [Gezari, S.; Miller, M. C.; Reynolds, C.; Tombesi, F.] Univ Maryland, Dept Astron, College Pk, MD 20742 USA. [Reina Aranda, M.; Sabau-Graziati, L.] Natl Inst Aerosp Technol INTA, Carretera Ajalvir Km 4, Torrejon De Ardoz 28850, Spain. [Morsink, S.] Univ Alberta, 85 Ave 116 St NW, Edmonton, AB T6G 2R3, Canada. [Motch, C.] Observ Astron, 11 Rue Univ, F-67000 Strasbourg, France. [Mouchet, M.] Univ Paris Diderot, 5 Rue Thomas Mann, F-75205 Paris 13, France. INAF OA Torino, Via Osservatorio 20, I-10025 Pino Torinese, Italy. [Orleanski, P.; Michalska, M.; Wawrzaszek, R.] Space Res Ctr, Bartycka 18A, Warsaw, Poland. [Osten, R.] Space Telescope Inst, 3700 San Martin Dr, Baltimore, MD 21218 USA. [Ozel, F.; Psaltis, D.] Univ Arizona, Dept Astron, 933 N Cherry Ave, Tucson, AZ 85721 USA. [Paul, B.] Raman Res Inst, CV Raman Ave, Sadashivanagar 560080, India. [Hudec, R.; Petracek, V.] Czech Tech Univ, Zikova 1903-4, CZ-16636 Prague 6, Czech Republic. [Poutanen, J.] Univ Turku, Tuorla Observ, Vaisalantie 20, FIN-21500 Piikkio, Finland. [Ramsay, G.] Armagh Observ, Coll Hill, Armagh BT61 9DG, North Ireland. [Mihara, T.; Rachevski, A.; Zampa, G.; Zampa, N.] Ist Nazl Fis Nucl, Via A Valerio 2, I-34127 Trieste, Italy. [Ray, P. S.; Wood, K.] NRL, 4555 Overlook Ave SW, Washington, DC 20375 USA. [Reddy, S.] Univ Washington, Inst Nucl Theory, Seattle, WA 98195 USA. [Papadakis, I.; Reig, P.] Univ Crete, Phys Dept, GR-71003 Iraklion, Greece. [Casares, J.; Cornelisse, R.; Linares, M.; Rodriguez-Gil, P.] Inst Astrofis Canarias, Via Lactea S-N, E-38205 Tenerife, Spain. [Patruno, A.; Rossi, E. M. R.] Leiden Observ, Niels Bohrweg 2, NL-2333 CA Leiden, Netherlands. [Ryde, F.] KTH Royal Inst Technol, Valhallavagen 79, S-10044 Stockholm, Sweden. [De Luca, A.; Esposito, P.; Marelli, J. MargueronM.; Mereghetti, S.; Salvaterra, R.; Salvetti, D.] INAF IASF Milano, Via E Bassini 15, I-20133 Milan, Italy. [Bakala, P.; Doyle, G.; Goluchova, K.; Schee, J.; Stuchlik, Z.; Torok, G.] Silesian Univ Opava, Rybnicku 626-1, Opava 74601, Czech Republic. [Wilms, J.; Kreykenbohm, I.; Schmid, C.; Wille, M.] Univ Erlangen Nurnberg, Schlosspl 4, D-91054 Erlangen, Germany. [Hebeler, K.; Schwenk, A.] GSI Helmholtzzentrum Schwerionenforsch GmbH, ExtreMe Matter Inst EMMI, D-64291 Darmstadt, Germany. [Schwope, A. D.; Traulsen, I.] Leibniz Inst Astrophys Potsdam, Sternwarte 16, D-14482 Potsdam, Germany. [Shearer, A.] Natl Univ Ireland Galway, Univ Rd, Galway, Ireland. [Stappers, B.] Univ Manchester, Booth St West, Manchester M15 6PB, Lancs, England. [Stergioulas, N.] Aristotle Univ Thessaloniki, Thessaloniki, Greece. [Drake, S. A.; Enoto, T.; Kowalski, A. F.; Mahmoodifar, S.; Schnittman, J. D.; Strohmayer, T. E.] Goddard Space Flight Ctr, 8800 Greenbelt Rd, Greenbelt, MD 20771 USA. [Takahashi, T.; Watanabe, S.] ISAS, Chuo Ku, 3-1-1 Yoshinodai, Sagamihara, Kanagawa 2525210, Japan. [Negueruela, I.; Pons, J.; Torrejon, J. M.] Univ Alicante, Carretera San Vicente del Raspeig, St Vicent Del Raspeig 03690, Spain. [Torres, D. F.] ICREA, Passeig Lluis Co 23, Barcelona 08010, Spain. [Uttley, P.; Vrba, V.] Acad Sci Czech Republic, Phys Inst, Slovance 1999-2, CZ-18221 Prague 8, Czech Republic. [Wheatley, P.] Univ Warwick, Gibbet Hill Rd, Coventry CV4 7AL, W Midlands, England. [Bocchino, F.; Orio, M.; Zampieri, L.] INAF OA Padova, Vicolo Osservatorio 5, Padua, Italy. [Zhang, B.] Univ Nevada, Las Vegas, NV 89012 USA. [Turriziani, S.] Univ Roma Tor Vergata, Via Ric Sci 1, I-00133 Rome, Italy. [D'Ammando, F.; Giovannini, G.; Giroletti, M.; Orienti, M.; Prandoni, I.] INAF IRA Bologna, Via P Gobetti 101, I-40129 Bologna, Italy. [Baldazzi, G.; D'Ammando, F.] Univ Bologna, Dept Phys, Vle Berti Pichat 6-2, I-40127 Bologna, Italy. [Baldazzi, G.; D'Ammando, F.] Ist Nazl Fis Nucl, Sect Bologna, Vle Berti Pichat 6-2, I-40127 Bologna, Italy. [Rodriguez-Gil, P.] Univ La Laguna, Dept Astrophys, E-38206 San Cristobal la Laguna, Santa Cruz De T, Spain. [Goldwurm, A.; Lachaud, C.; Lebrun, F.] Univ Paris Diderot, CEA Irfu, Observ Paris, APC,UMR 7164,CNRS N2P3,Sorbonne Paris Cite, 10 Rue Alice Domon & Leonie Duquet, F-75205 Paris 13, France. [Barbera, M.; Collura, A.] INAF Osservatorio Astron Palermo, Piazza Parlamento 1, I-90134 Palermo, Italy. [Altamirano, D.; Emmanoulopoulos, D.; McHardy, I. M.] Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England. [Linares, M.; Mignani, R.] Univ Zielona Gora, Kepler Inst Astron, Lubuska 2, PL-65265 Zielona Gora, Poland. [Markowitz, A.] Univ Calif San Diego, Mail Code 0424, La Jolla, CA 92093 USA. [Cackett, E.] Univ Wisconsin, Dept Astron, 475 N Charter Str, Madison, WI 53706 USA. [Cackett, E.] Wayne State Univ, Dept Phys & Astron, 666 W Hancock St, Detroit, MI 48201 USA. [Miniuttill, G.] Ctr Astrobiol CSIC INTA, POB 78, E-28691 Madrid, Spain. [Reig, P.] Fdn Res & Technol Hellas, GR-71110 Iraklion, Greece. [Bodin, P.; Seyler, J. -Y.] CNES, 18 Ave Edouard Belin, F-31400 Toulouse, France. [Burgay, M.; Pellizzoni, A.; Possenti, A.; Riggio, A.] INAF OA Cagliari, Str 54, I-09012 Capoterra, Italy. [Agudo, I.; Castro-Tirado, A. J.; Perez-Torres, M.] Inst Astrofis Andalucia, Glorieta Astron IAAC CSIC S-N, E-18008 Granada, Spain. [Bombaci, I.; Shore, S.] Univ Pisa, Largo B Pontecorvo 3, I-56127 Pisa, Italy. [Johannsen, T.] Perimeter Inst Theoret Phys, 31 Caroline St North, Waterloo, ON N2L 2Y5, Canada. [Paolillo, M.] Univ Napoli Fedelico II, Dipartimento Sci Fis, CU Monte St Angelo,Via Cintia Ed 6, I-80126 Naples, Italy. [Mandel, I.] Univ Birmingham, Sch Phys & Astron, Birmingham B15 2TT, W Midlands, England. [Tomsick, J.] Univ Calif Berkeley, Space Sci Lab, 7 Gauss Way, Berkeley, CA 94720 USA. [Prakash, M.] Ohio Univ, Dept Phys & Astron, Athens, OH 45701 USA. [Greiner, J.; Kanbach, G.; Scaringi, S.] Max Planck Inst Extraterr Phys, Postfach 1603, D-85740 Garching, Germany. [Rezzolla, L.] Max Planck Inst Gravitat Phys, Albert Einstein Inst, Muhlenberg 1, D-14476 Golm, Germany. [Blay, P.; Cerda-Duran, P.; Gabler, M.] Univ Valencia, Ave Vicente Blasco Ibanez 13, Valencia 46010, Spain. [Jose, J.] Tech Univ Catalonia, C Jordi Girona 31, Barcelona 08034, Spain. [Johannsen, T.] Univ Waterloo, Dept Phys & Astron, 200 Univ Ave West, Waterloo, ON N2L 3G1, Canada. [Behar, O.; Evangelista, V.; Gualtieri, L.] Sapienza Univ, Ple A Moro 2, I-00185 Rome, Italy. [Tauris, T.] Argelander Inst Astron, Hugel 71, D-53121 Bonn, Germany. [Maccarone, T. J.] Texas Tech Univ, Dept Phys, Box 41051, Lubbock, TX 79409 USA. [Bhattacharyya, S.] Tata Inst Fundamental Res, 1 Homi Bhabha Rd, Mumbai 400005, Maharashtra, India. [Finger, M.] Charles Univ Prague, Fac Math & Phys, V Holesovickach 2, CZ-18000 Prague, Czech Republic. [Sandberg, J.] Jorgen Sandberg Consulting, Copenhagen, Denmark. [Erkut, M. H.] Istanbul Kultur Univ, Atakoy Campus, TR-34156 Istanbul, Turkey. [Perez, M. A.] Univ Salamanca, Fac Ciencias Trilingue, Fundamental Phys Dept, Plaza Merced S-N, E-37008 Salamanca, Spain. [Albertus, C.] Univ Granada, Fac Ciencias, Dept Fis Atom Mol & Nucl, E-18071 Granada, Spain. [Rios, A.] Univ Surrey, Guildford GU2 7XH, Surrey, England. [Alford, M.] Washington Univ, Dept Phys, Compton Hall,One Brookings Dr,Campus Box 1105, St Louis, MO 63130 USA. [Fender, R.; Motta, S.; Munoz-Darias, T.] Univ Oxford, Dept Phys, Clarendon Lab, Parks Rd, Oxford OX1 3PU, England. [Patruno, A.] Netherlands Inst Radio Astron, ASTRON, Postbus 2, NL-7990 AA Dwingeloo, Netherlands. [Mangano, V.] Penn State Univ, Dept Astron & Astrophys, Davey Lab 525, University Pk, PA 16802 USA. [Zhang, S. -N.; Cao, X.; Chen, Y.; Dong, Y.; Lu, F.; Qu, J.; Song, L.; Varniere, P.; Wang, J.; Zhang, S.] Inst High Energy Phys, 19B YuquanLu, Beijing 1000049, Peoples R China. [Yu, W.; Yuan, F.] Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China. [Peng, H.] Tsinghua Univ, Dept Engn Phys, Beijing 100084, Peoples R China. [Peng, H.] Tsinghua Univ, Ctr Astrophys, Beijing 100084, Peoples R China. [Wang, Z.] Tongji Univ, Inst Precis Opt Engn, Dept Phys, Shanghai 200092, Peoples R China. [Gou, L.; Yuan, W.; Zhang, C.] Chinese Acad Sci, Natl Astron Observ, 20A Datun Rd, Beijing, Peoples R China. [Chen, Y.; Dai, Z.; Li, X.] Nanjing Univ, 22 Hankou Rd, Nanjing 210093, Jiangsu, Peoples R China. [Cui, W.] Purdue Univ, 525 Northwestern Ave, W Lafayette, IN 47907 USA. [Chen, C.] Shanghai Acad Spaceflight Technol, Yangpu City Ind Pk,135,Guowei Rd, Shanghai, Peoples R China. [Gao, Z.] China Acad Space Technol, Beijing, Peoples R China. [Yuan, Y.] Univ Sci & Technol China, 96 JinZhai Rd, Hefei 230026, Anhui, Peoples R China. [Xu, R.] Peking Univ, 5 Yiheyuan Rd, Beijing 100871, Peoples R China. [Liang, E.] Guangxi Univ, 188 East Daxue Rd, Nanning 530006, Guangxi, Peoples R China. [Wu, X.] Chinese Acad Sci, Purple Mt Observ, 2 West Beijing Rd, Nanjing 210008, Jiangsu, Peoples R China. [Hempel, M.; Thielemann, F. K.] Univ Basel, Dept Phys, Klingelbergstr 82, CH-4056 Basel, Switzerland. [Zech, A.] Univ Paris Diderot, LUTH, 5 Pl Jules Janssen, F-92195 Meudon, France. [Margueron, J.; Oertel, M.] IPN Lyon, 4 Rue Enrico Fermi, F-69622 Lyon, France. [Kurkela, A.] CERN, CH-1211 Geneva 23, Switzerland. [Vietri, M.] Scuola Normale Super Pisa, Piazza Cavalieri 7, I-56126 Pisa, Italy. [Bernardini, F.; Russell, D. M.] NYUAD, POB 129188, Abu Dhabi, U Arab Emirates. [Ballantyne, D. R.; Keek, L.] Georgia Inst Technol, North Ave NW, Atlanta, GA 30332 USA. [Paragi, Z.] JIVE, Postbus 2, NL-7990 AA Dwingeloo, Netherlands. [Komossa, S.; Savolainen, T.] Max Planck Inst Radioastron, Hugel 69, D-53121 Bonn, Endenich, Germany. [Komossa, S.; Savolainen, T.] Max Planck Inst Radioastron, Postfach 20 24, D-53010 Bonn, Germany. [Nucita, A.] Univ Salento, Dept Math & Phys, Via Arnesano,CP 193, I-73100 Lecce, Italy. [Nucita, A.] Ist Nazl Fis Nucl, Via Arnesano,CP 193, I-73100 Lecce, Italy. [Koerding, E.] Radboud Univ Nijmegen, Comeniuslaan 4, NL-6525 HP Nijmegen, Netherlands. [Bode, M.] Liverpool John Moores Univ, Astrophys Res Inst, IC2,Liverpool Sci Pk,146 Brownlow Hill, Liverpool L3 5RF, Merseyside, England. [Begelman, M.] Univ Colorado, JILA, 440 UCB, Boulder, CO 80309 USA. [Tiengo, A.] IUSS Ist Univ Studi Super Pavia, Palazzo Broletto Piazza Vittoria 15, I-27100 Pavia, Italy. [Slowikowska, A.] Univ Zielona Gora, PL-65417 Zielona Gora, Poland. [Costamante, L.] Univ Perugia, Dept Phys, I-06123 Perugia, Italy. [Stamerra, A.] INAF IFSI Torino, Corso Fiume 4, I-10133 Turin, Italy. [Malone, C.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Paerels, F.] Columbia Univ, 116th St & Broadway, New York, NY 10027 USA. [Serino, M.] RIKEN, Wako, Saitama, Japan. [Zingale, M.] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA. [Postnov, K.; Shakura, N.] Moscow MV Lomonosov State Univ, Sternberg Astron Inst, Moscow 119992, Russia. [Inam, S. C.] Baskent Univ, Dept Elect & Elect Engn, Ankara, Turkey. [Behar, E.; Peretz, U.] Technion Israel Inst Technol, IL-3200003 Haifa, Israel. [Behar, E.; Peretz, U.] Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA. [Hamuguchi, K.] NASA, GSFC, CRESST, Greenbelt, MD 20771 USA. [Hamuguchi, K.] NASA, GSFC, Xray Astrophys Lab, Greenbelt, MD 20771 USA. [Guedel, M.] Univ Vienna, Dept Astrophys, Turkenschanzstr 17, A-1180 Vienna, Austria. [Stratta, G.] Univ Urbino Carlo Bo, Piazza Repubbl 13, I-61029 Urbino, Italy. [Jenke, P. A.] Univ Alabama, 301 Sparkman Dr, Huntsville, AL 35899 USA. [Pederiva, F.] Univ Trento, Dipartimento Fis, Via Sommar, I-38123 Trento, Italy. [Baldo, M.] Ist Nazl Fis Nucl, Via Santa Sofia 64, I-95123 Catania, Italy. [Rischke, D. H.; Schaffner-Bielich, J.; Sedrakian, A.] Goethe Univ, Inst Theoret Phys, D-60438 Frankfurt, Germany. [Type, S.] GSI Helmholtzzentrum Schwerionenforsch GmbH, Planckstr 1, D-64291 Darmstadt, Germany. [Buballa, M.; Hebeler, K.; Martinez, G.; Schwenk, A.] Tech Univ Darmstadt, Inst Kernphys, D-64289 Darmstadt, Germany. [Chamel, N.] Univ Libre Bruxelles, Inst Astron & Astrophys, CP 226,Blvd Triomphe, B-1050 Brussels, Belgium. [Sakamoto, T.] Aoyama Gakuin Univ, Dept Phys & Math, Sagamihara, Kanagawa 2525258, Japan. [Briggs, M. S.] Univ Alabama, Natl Space Sci & Technol Ctr, Huntsville, AL 35805 USA. [Tamura, H.] Tohoku Univ, Dept Phys, Aoba Ku, Sendai, Miyagi 9808578, Japan. [Degenaar, N.] Univ Cambridge, Inst Astron, Madingley Rd, Cambridge CB3 0HA, England. [Chernyakova, M.] Dublin City Univ, Sch Phys Sci, Dublin 9, Ireland. [Celestin, S.] Univ Orleans, CNRS, Lab Phys & Chem Environm & Space LPC2E, F-45067 Orleans, France. [Fullekrug, M.] Univ Bath, Dept Elect & Elect Engn, Ctr Space Atmospher & Ocean Sci, Bath, Avon, England. [Liu, L. -P.; Xiao, L.] China Acad Space Technol China, Beijing, Peoples R China. [Medina-Tanco, G.] Univ Nacl Autonoma Mexico, Inst Ciencias Nucl, Apartado Postal 70-543,Ciudad Univ, Mexico City, DF 04510, Mexico. [Peterson, B. M.] Ohio State Univ, McPherson Lab 4055, Dept Astron, 140 West 18th Ave, Columbus, OH 43210 USA. [Huppenkothen, D.] NYU, Ctr Data Sci, 726 Broadway, New York, NY 10003 USA. [Steiner, A. W.] Univ Tennessee, Knoxville, TN 37996 USA. [Bellutti, P.; Borghi, G.; Ficorella, F.; Picciotto, A.; Piemonte, C.; Zorzi, N.] Fdn Bruno Kessler, Via Sommar 18, I-38123 Trento, Italy. Trento Inst Fundamental Phys & Applicat, Via Sommar 14, I-38123 Trento, Italy. RP Feroci, M (reprint author), IAPS INAF, Via Fosso Cavaliere 100, I-00133 Rome, Italy. EM marco.feroci@inaf.it RI Malcovati, Piero/S-2458-2016; Bursa, Michal/G-9004-2014; OI Ray, Paul/0000-0002-5297-5278; TORRESI, ELEONORA/0000-0002-5201-010X; Brown, Edward/0000-0003-3806-5339; Paolillo, Maurizio/0000-0003-4210-7693; Malcovati, Piero/0000-0001-6514-9672; Sanna, Andrea/0000-0002-0118-2649; de Martino, Domitilla/0000-0002-5069-4202; Groot, Paul/0000-0002-4488-726X; Gendre, Bruce/0000-0002-9077-2025; orienti, monica/0000-0003-4470-7094; Stevens, Abigail/0000-0002-5041-3079; Esposito, Paolo/0000-0003-4849-5092; Poutanen, Juri/0000-0002-0983-0049; Tramacere, Andrea/0000-0002-8186-3793; Wheatley, Peter/0000-0003-1452-2240 NR 27 TC 0 Z9 0 U1 16 U2 16 PU SPIE-INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA SN 0277-786X BN 978-1-5106-0189-5; 978-1-5106-0190-1 J9 PROC SPIE PY 2016 VL 9905 AR UNSP 99051R-1 DI 10.1117/12.2233161 PN 1 PG 20 WC Instruments & Instrumentation; Optics SC Instruments & Instrumentation; Optics GA BG2WP UT WOS:000387731500048 ER PT S AU Kelley, RL Akamatsu, H Azzarell, P Bialas, T Boyce, KR Brown, GV Canavan, E Chiao, MP Costantini, E DiPirro, MJ Eckart, ME Ezoe, Y Fujimoto, R Haas, D den Herder, JW Hoshino, A Ishikawa, K Ishisaki, Y Iyomoto, N Kilbourne, CA Kimball, M Kitamoto, S Konami, S Koyama, S Leutenegger, MA McCammon, D Miko, J Mitsuda, K Mitsuishi, I Moseley, H Murakami, H Murakami, M Noda, H Ogawa, M Ohashi, T Okamoto, A Ota, N Paltani, S Porter, FS Sakai, K Sato, K Sato, Y Sawada, M Seta, H Shinozaki, K Shirron, PJ Sneiderman, GA Sugita, H Szymkowiak, AE Takei, Y Tamagawa, T Tashiro, M Terada, Y Tsujimoto, M de Vries, CP Yamada, S Yamasaki, NY Yatsu, Y AF Kelley, Richard L. Akamatsu, Hiroki Azzarell, Phillipp Bialas, Tom Boyce, Kevin R. Brown, Gregory V. Canavan, Edgar Chiao, Meng P. Costantini, Elisa DiPirro, Michael J. Eckart, Megan E. Ezoe, Yuichiro Fujimoto, Ryuichi Haas, Daniel den Herder, Jan-Willem Hoshino, Akio Ishikawa, Kumi Ishisaki, Yoshitaka Iyomoto, Naoko Kilbourne, Caroline A. Kimball, Mark Kitamoto, Shunji Konami, Saori Koyama, Shu Leutenegger, Maurice A. McCammon, Dan Miko, Joseph Mitsuda, Kazuhisa Mitsuishi, Ikuyuki Moseley, Harvey Murakami, Hiroshi Murakami, Masahide Noda, Hirofumi Ogawa, Mina Ohashi, Takaya Okamoto, Atsushi Ota, Naomi Paltani, Stephane Porter, F. Scott Sakai, Kazuhiro Sato, Kosuke Sato, Yohichi Sawada, Makoto Seta, Hiromi Shinozaki, Keisuke Shirron, Peter J. Sneiderman, Gary A. Sugita, Hiroyuki Szymkowiak, Andrew E. Takei, Yoh Tamagawa, Toni Tashiro, Makoto Terada, Yukikatsu Tsujimoto, Masahiro de Vries, Cor P. Yamada, Shinya Yamasaki, Noriko Y. Yatsu, Yoichi BE DenHerder, JWA Takahashi, T Bautz, M TI The Astro-H High Resolution Soft X-Ray Spectrometer SO SPACE TELESCOPES AND INSTRUMENTATION 2016: ULTRAVIOLET TO GAMMA RAY SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Space Telescopes and Instrumentation - Ultraviolet to Gamma Ray CY JUN 26-JUL 01, 2016 CL Edinburgh, SCOTLAND SP SPIE DE Detectors; x-rays; calorimeters; spectrometers; instruments; missions AB We present the overall design and performance of the Astro-H (Hitomi) Soft X-Ray Spectrometer (SXS). The instrument uses a 36-pixel array of x-ray microcalorimeters at the focus of a grazing-incidence x-ray mirror Soft X-Ray Telescope (SXT) for high-resolution spectroscopy of celestial x-ray sources. The instrument was designed to achieve an energy resolution better than 7 eV over the 0.3-12 keV energy range and operate for more than 3 years in orbit. The actual energy resolution of the instrument is 4-5 eV as demonstrated during extensive ground testing prior to launch and in orbit. The measured mass flow rate of the liquid helium cryogen and initial fill level at launch predict a lifetime of more than 4 years assuming steady mechanical cooler performance. Cryogen-free operation was successfully demonstrated prior to launch. The successful operation of the SXS in orbit, including the first observations of the velocity structure of the Perseus cluster of galaxies, demonstrates the viability and power of this technology as a tool for astrophysics. C1 [Kelley, Richard L.; Bialas, Tom; Boyce, Kevin R.; Canavan, Edgar; Chiao, Meng P.; DiPirro, Michael J.; Eckart, Megan E.; Kilbourne, Caroline A.; Kimball, Mark; Leutenegger, Maurice A.; Miko, Joseph; Moseley, Harvey; Porter, F. Scott; Shirron, Peter J.; Sneiderman, Gary A.] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA. [Akamatsu, Hiroki; Costantini, Elisa; Haas, Daniel; den Herder, Jan-Willem; de Vries, Cor P.] SRON Netherlands Inst Space Res, Utrecht, Netherlands. [Azzarell, Phillipp; Paltani, Stephane] Univ Genoa, Dept Astron, CH-1290 Versoix, Switzerland. [Brown, Gregory V.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Chiao, Meng P.; Leutenegger, Maurice A.] Univ Maryland, Baltimore, MD 21250 USA. [Ezoe, Yuichiro; Konami, Saori; Ohashi, Takaya; Seta, Hiromi; Yamada, Shinya] Tokyo Metropolitan Univ, Dept Phys, Tokyo 1920397, Japan. [Fujimoto, Ryuichi] Kanazawa Univ, Fac Math & Phys, Kanazawa, Ishikawa 9201192, Japan. [Hoshino, Akio; Kitamoto, Shunji] Rikkyo Univ, Dept Phys, Tokyo 1718501, Japan. [Ishikawa, Kumi; Tamagawa, Toni] RIKEN Nishina Ctr, Saitama 3510198, Japan. [Ishisaki, Yoshitaka] Tokyo Metropolitan Univ, Dept Phys, Tokyo 1920397, Japan. [Iyomoto, Naoko] Kyushu Univ, Fukuoka 8190395, Japan. [Koyama, Shu; Mitsuda, Kazuhisa; Ogawa, Mina; Takei, Yoh; Tsujimoto, Masahiro; Yamasaki, Noriko Y.] Japan Aerosp Explorat Agcy JAXA, ISAS, Kanagawa 2525210, Japan. [McCammon, Dan] Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA. [Mitsuishi, Ikuyuki] Nagoya Univ, Dept Phys, Nagoya, Aichi 4648602, Japan. [Murakami, Hiroshi] Tohoku Gakuin Univ, Dept Informat Sci, Fac Liberal Arts, Sendai, Miyagi 9813193, Japan. [Murakami, Masahide] Kindai Univ, Dept Architecture, Osaka 5778502, Japan. [Noda, Hirofumi; Sato, Yohichi] Tohoku Univ, Frontier Res Inst Interdisciplinary Sci, Sendai, Miyagi 9808578, Japan. [Okamoto, Atsushi; Shinozaki, Keisuke; Sugita, Hiroyuki] Japan Aerosp Explorat Agcy JAXA, Tsukuba Space Ctr TKSC, Ibaraki 3058505, Japan. [Ota, Naomi] Nara Womens Univ, Fac Sci, Dept Phys, Nara 6308506, Japan. [Sakai, Kazuhiro] Univ Space Res Assoc, Huntsville, AL 35805 USA. [Sato, Kosuke] Tokyo Univ Sci, Dept Phys, Tokyo 1628601, Japan. [Sawada, Makoto] Aoyama Gakuin Univ, Dept Math & Phys, Kanagawa 2525258, Japan. [Szymkowiak, Andrew E.] Yale Univ, Dept Phys, New Haven, CT 06520 USA. [Tashiro, Makoto; Terada, Yukikatsu] Saitama Univ, Dept Phys, Saitama 3388570, Japan. [Yatsu, Yoichi] Tokyo Inst Technol, Dept Phys, Tokyo 1528551, Japan. EM Richard.L.Kelley@nasa.gov NR 25 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 978-1-5106-0189-5; 978-1-5106-0190-1 J9 PROC SPIE PY 2016 VL 9905 AR UNSP 99050V DI 10.1117/12.2232509 PN 1 PG 17 WC Instruments & Instrumentation; Optics SC Instruments & Instrumentation; Optics GA BG2WP UT WOS:000387731500020 ER PT S AU Leutenegger, MA Audard, M Boyce, KR Brown, GV Chiao, MP Eckart, ME Fujimoto, R Furuzawa, A Guainazzi, M Haas, D den Herder, JW Hayashi, T Iizuka, R Ishida, M Ishisaki, Y Kelley, RL Kikuchig, N Kilbourne, CA Koyama, S Kurashima, S Maeda, Y Markevitch, M McCammon, D Mitsuda, K Mori, H Nakaniwa, N Okajima, T Paltani, S Petre, R Porter, FS Sato, K Sato, T Sawada, M Serlemitsos, PJ Seta, H Sneiderman, G Soong, Y Sugita, S Szymkowiak, AE Takei, Y Tashiro, M Tawara, Y Tsujimoto, M de Vries, CP Watanabe, T Yamada, S Yamasaki, N AF Leutenegger, Maurice A. Audard, Marc Boyce, Kevin R. Brown, Gregory V. Chiao, Meng P. Eckart, Megan E. Fujimoto, Ryuichi Furuzawa, Akihiro Guainazzi, Matteo Haas, Daniel den Herder, Jan-Willem Hayashi, Takayuki Iizuka, Ryo Ishida, Manabu Ishisaki, Yoshitaka Kelley, Richard L. Kikuchig, Naomichi Kilbourne, Caroline A. Koyama, Shu Kurashima, Sho Maeda, Yoshitomo Markevitch, Maxim McCammon, Dan Mitsuda, Kazuhisa Mori, Hideyuki Nakaniwa, Nozomi Okajima, Takashi Paltani, Stephane Petre, Robert Porter, F. Scott Sato, Kosuke Sato, Toshiki Sawada, Makoto Serlemitsos, Peter J. Seta, Hiromi Sneiderman, Gary Soong, Yang Sugita, Satoshi Szymkowiak, Andrew E. Takei, Yoh Tashiro, Makoto Tawara, Yuzuru Tsujimoto, Masahiro de Vries, Cor P. Watanabe, Tomomi Yamada, Shinya Yamasaki, Noriko BE DenHerder, JWA Takahashi, T Bautz, M TI In-flight verification of the calibration and performance of the ASTRO-H (Hitomi) Soft X-ray Spectrometer SO SPACE TELESCOPES AND INSTRUMENTATION 2016: ULTRAVIOLET TO GAMMA RAY SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Space Telescopes and Instrumentation - Ultraviolet to Gamma Ray CY JUN 26-JUL 01, 2016 CL Edinburgh, SCOTLAND SP SPIE DE X-ray calorimeter AB The Soft X-ray Spectrometer (SXS) onboard the Astro-H (Hitomi) orbiting x-ray observatory featured an array of 36 silicon thermistor x-ray calorimeters optimized to perform high spectral resolution x-ray imaging spectroscopy of astrophysical sources in the 0.3-12 keV band. Extensive pre-flight calibration measurements are the basis for our modeling of the pulse-height-energy relation and energy resolution for each pixel and event grade, telescope collecting area, detector efficiency, and pulse arrival time. Because of the early termination of mission operations, we needed to extract the maximum information from observations performed only days into the mission when the onboard calibration sources had not yet been commissioned and the dewar was still coming into thermal equilibrium, so our technique for reconstructing the per-pixel time-dependent pulse-height-energy relation had to be modified. The gain scale was reconstructed using a combination of an absolute energy scale calibration at a single time using a fiducial from an onboard radioactive source, and calibration of a dominant time-dependent gain drift component using a dedicated calibration pixel, as well as a residual time-dependent variation using spectra from the Perseus cluster of galaxies. The energy resolution was also measured using the onboard radioactive sources. It is consistent with instrument-level measurements accounting for the modest increase in noise due to spacecraft systems interference. We use observations of two pulsars to validate our models of the telescope area and detector efficiency, and to derive a more accurate value for the thickness of the gate valve Be window, which had not been opened by the time mission operations ceased. We use observations of the Crab pulsar to refine the pixel-to-pixel timing and validate the absolute timing. C1 [Leutenegger, Maurice A.; Boyce, Kevin R.; Chiao, Meng P.; Eckart, Megan E.; Hayashi, Takayuki; Kelley, Richard L.; Kilbourne, Caroline A.; Markevitch, Maxim; Mori, Hideyuki; Okajima, Takashi; Petre, Robert; Porter, F. Scott; Serlemitsos, Peter J.; Sneiderman, Gary; Soong, Yang; Watanabe, Tomomi] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA. [Leutenegger, Maurice A.; Chiao, Meng P.] CRESST, College Pk, MD 20740 USA. [Leutenegger, Maurice A.; Chiao, Meng P.] Univ Maryland Baltimore Cty, Baltimore, MD 21228 USA. [Audard, Marc; Paltani, Stephane] Univ Geneva, CH-1211 Geneva 4, Switzerland. [Brown, Gregory V.] Lawrence Livermore Natl Lab, Livermore, CA USA. [Fujimoto, Ryuichi] Kanazawa Univ, Kanazawa, Ishikawa 9201192, Japan. [Furuzawa, Akihiro; Hayashi, Takayuki; Tawara, Yuzuru] Nagoya Univ, Nagoya, Aichi 4648601, Japan. [Guainazzi, Matteo; Iizuka, Ryo; Ishida, Manabu; Kikuchig, Naomichi; Koyama, Shu; Kurashima, Sho; Maeda, Yoshitomo; Mitsuda, Kazuhisa; Nakaniwa, Nozomi; Sato, Toshiki; Takei, Yoh; Tsujimoto, Masahiro; Yamasaki, Noriko] ISAS, Sagamihara, Kanagawa, Japan. [Haas, Daniel; den Herder, Jan-Willem; de Vries, Cor P.] SRON, Utrecht, Netherlands. [Ishisaki, Yoshitaka; Seta, Hiromi; Yamada, Shinya] Tokyo Metropolitan Univ, Hachioji, Tokyo, Japan. [McCammon, Dan] Univ Wisconsin, Madison, WI 53706 USA. [Sato, Kosuke] Tokyo Univ Sci, Tokyo 162, Japan. [Sawada, Makoto] Aoyama Gakuin Univ, Tokyo, Japan. [Sugita, Satoshi] Tokyo Inst Technol, Tokyo, Japan. [Szymkowiak, Andrew E.] Yale Univ, New Haven, CT 06520 USA. [Tashiro, Makoto] Saitama Univ, Saitama, Saitama, Japan. RP Leutenegger, MA (reprint author), NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA.; Leutenegger, MA (reprint author), CRESST, College Pk, MD 20740 USA.; Leutenegger, MA (reprint author), Univ Maryland Baltimore Cty, Baltimore, MD 21228 USA. EM maurice.a.leutenegger@nasa.gov NR 14 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 978-1-5106-0189-5; 978-1-5106-0190-1 J9 PROC SPIE PY 2016 VL 9905 AR UNSP 99053U DI 10.1117/12.2234230 PN 1 PG 12 WC Instruments & Instrumentation; Optics SC Instruments & Instrumentation; Optics GA BG2WP UT WOS:000387731500115 ER PT S AU Maeda, Y Kikuchi, N Kurashima, S Ishida, M Iizuka, R Hayashi, T Okajima, T Matsumoto, H Mitsuishi, I Saji, S Sato, T Tachibana, S Mori, H Christensen, F Brejnholt, N Nitta, K Uruga, T AF Maeda, Yoshitomo Kikuchi, Naomichi Kurashima, Sho Ishida, Manabu Iizuka, Ryo Hayashi, Takayuki Okajima, Takashi Matsumoto, Hironori Mitsuishi, Ikuyuki Saji, Shigetaka Sato, Toshiki Tachibana, Sasagu Mori, Hideyuki Christensen, Finn Brejnholt, Nicolai Nitta, Kiyofumi Uruga, Tomoya BE DenHerder, JWA Takahashi, T Bautz, M TI Reflectivity around the gold L-edges of x-ray reflector of the soft x-ray telescope onboard ASTRO-H SO SPACE TELESCOPES AND INSTRUMENTATION 2016: ULTRAVIOLET TO GAMMA RAY SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Space Telescopes and Instrumentation - Ultraviolet to Gamma Ray CY JUN 26-JUL 01, 2016 CL Edinburgh, SCOTLAND SP SPIE DE X-rays; ASTRO-H/Hitomi; Soft X-ray Telescopes (SXTs); Wolter Type-I optics; stray lights AB We report the atomic scattering factor in the 11.2-15.4 keV for the ASTRO-H Soft X-ray Telescope (SXT)(9) obtained in the ground based measurements. The large effective area of the SXT covers above 10 keV. In fact, the flight data show the spectra of the celestical objects in the hard X-ray band. In order to model the area, the reflectivity measurements in the 11.2-15.4 keV band with the energy pitch of 0.4 - 0.7 eV were made in the synchrotron beamline Spring-8 BL01B1. We obtained atomic scattering factors f1 and f2 by the curve fitting to the reflectivities of our witness sample. The edges associated with the gold's L-I, II, and III transitions are identified, of which the depths are found to be roughly 60% shallower than those expected from the Henke's atomic scattering factor. C1 [Maeda, Yoshitomo; Ishida, Manabu; Iizuka, Ryo] Japan Aerosp Explorat Agcy JAXA, ISAS, 3-1-1 Yoshinodai, Sagamihara, Kanagawa 2298510, Japan. [Maeda, Yoshitomo; Kikuchi, Naomichi; Kurashima, Sho; Ishida, Manabu; Sato, Toshiki] Grad Univ Adv Studies, 3-1-1 Yoshinodai, Sagamihara, Kanagawa 2298510, Japan. [Kikuchi, Naomichi; Kurashima, Sho; Ishida, Manabu; Sato, Toshiki] Tokyo Metropolitan Univ, 1-1 Minami Osawa, Hachioji, Tokyo 1920397, Japan. [Hayashi, Takayuki; Okajima, Takashi; Mori, Hideyuki] NASA, Goddard Space Flight Ctr, Code 662, Greenbelt, MD 20771 USA. [Hayashi, Takayuki; Matsumoto, Hironori; Mitsuishi, Ikuyuki; Saji, Shigetaka; Tachibana, Sasagu] Nagoya Univ, Chikusa Ku, Furo Cho, Nagoya, Aichi 4648602, Japan. [Christensen, Finn] Tech Univ Denmark, Natl Space Inst, DTU Space, Elektrovej 327, DK-2800 Lyngby, Denmark. [Brejnholt, Nicolai] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Nitta, Kiyofumi; Uruga, Tomoya] JASRI SPring 8, Sayo Cho, Sayo, Hyogo 6795198, Japan. RP Maeda, Y (reprint author), Japan Aerosp Explorat Agcy JAXA, ISAS, 3-1-1 Yoshinodai, Sagamihara, Kanagawa 2298510, Japan.; Maeda, Y (reprint author), Grad Univ Adv Studies, 3-1-1 Yoshinodai, Sagamihara, Kanagawa 2298510, Japan. EM hzuka@astro.isas.jaxa.jp NR 13 TC 0 Z9 0 U1 0 U2 0 PU SPIE-INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA SN 0277-786X BN 978-1-5106-0189-5; 978-1-5106-0190-1 J9 PROC SPIE PY 2016 VL 9905 AR UNSP 99053Z DI 10.1117/12.2232727 PN 1 PG 8 WC Instruments & Instrumentation; Optics SC Instruments & Instrumentation; Optics GA BG2WP UT WOS:000387731500119 ER PT S AU Nakazawa, K Sato, G Kokubun, M Enoto, T Fukazawa, Y Hagino, K Harayama, A Hayashi, K Kataoka, J Katsuta, J Laurent, P Lebrung, F Limousin, O Makishima, K Mizuno, T Mori, K Nakamori, T Nakano, T Noda, H Odaka, H Ohno, M Ohta, M Saito, S Sato, R Tajima, H Takahashi, H Takahashi, T Takeda, S Terada, Y Uchiyama, H Uchiyama, Y Watanabe, S Yamaoka, K Yatsu, Y Yuasa, T AF Nakazawa, Kazuhiro Sato, Goro Kokubun, Motohide Enoto, Teruaki Fukazawa, Yasushi Hagino, Kouichi Harayama, Atsushi Hayashi, Katsuhiro Kataoka, Jun Katsuta, Junichiro Laurent, Philippe Lebrung, Francois Limousin, Olivier Makishima, Kazuo Mizuno, Tsunefumi Mori, Kunishiro Nakamori, Takeshi Nakano, Toshio Noda, Hirofumi Odaka, Hirokazu Ohno, Masanori Ohta, Masayuki Saito, Shinya Sato, Rie Tajima, Hiroyasu Takahashi, Hiromitsu Takahashi, Tadayuki Takeda, Shin'ichiro Terada, Yukikatsu Uchiyama, Hideki Uchiyama, Yasunobu Watanabe, Shin Yamaoka, Kazutaka Yatsu, Yoichi Yuasa, Takayuki CA HXI Team BE DenHerder, JWA Takahashi, T Bautz, M TI The hard X-ray imager (HXI) onboard ASTRO-H SO SPACE TELESCOPES AND INSTRUMENTATION 2016: ULTRAVIOLET TO GAMMA RAY SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Space Telescopes and Instrumentation - Ultraviolet to Gamma Ray CY JUN 26-JUL 01, 2016 CL Edinburgh, SCOTLAND SP SPIE DE Hitomi; Hard X-ray Imager; DSSD; CdTe-DSD; BGO; APD; active-shield; in-orbit performance ID PERFORMANCE; TELESCOPE AB Hitomi X-ray observatory launched in 17 February 2016 had a hard X-ray imaging spectroscopy system made of two hard X-ray imagers (HXIs) coupled with two hard X-ray telescopes (HXTs). With 12 m focal length, they provide fine (2' half-power diameter; HPD) imaging spectroscopy at 5 to 80 keV. The HXI main imagers are made of 4 layers of Si and a CdTe semiconductor double-sided strip detectors, stacked to enhance detection efficiency as well as to enable photon interaction-depth sensing. Active shield made of 9 BGO scintillators surrounds the imager to provide with low background. Following the deployment of the Extensible Optical Bench (EOB) on 28 February, the HXI was gradually turned on. Two imagers successfully started observation on 14 March, and was operational till the incident lead to Hitomo loss, on 26 March. All detector channels, 1280 ch of imager and 11 channel of active shields and others each, worked well and showed performance consistent with those seen on ground. From the first light observation of G21.5-0.9 and the following Crab observations, 5 80 keV energy coverage and good detection efficiency were confirmed. With blank sky observations, we checked our background level. In some geomagnetic region, strong background continuum, presumably caused by trapped electron with energy similar to 100 keV, is seen. But by cutting the high-background time-intervals, the background became significantly lower, typically with 1-3x10(-4) counts s(-1) keV(-1) cm(-2) (here cm(2) is shown with detector geometrical area). Above 30 keV, line and continuum emission originating from activation of CdTe was significantly seen, though the level of 1-4x10(-4) counts s(-1) keV(-1) cm(-2) is still comparable to those seen in NuSTAR. By comparing the effective area and background rate, preliminary analysis shows that the HXI had a statistical sensitivity similar to NuSTAR for point sources, and more than twice better for largely extended sources. C1 [Nakazawa, Kazuhiro] Univ Tokyo, Dept Phys, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1130033, Japan. [Sato, Goro; Kokubun, Motohide; Hagino, Kouichi; Mori, Kunishiro; Ohta, Masayuki; Sato, Rie; Takahashi, Tadayuki; Watanabe, Shin] JAXA, Inst Space & Astronaut Sci, 3-1-1 Yoshinodai, Sagamihara, Kanagawa 2525210, Japan. [Enoto, Teruaki] Kyoto Univ, Fac Sci, Sakyo Ku, Kitashirakawa Oiwake Cho, Kyoto 6068502, Japan. [Fukazawa, Yasushi; Harayama, Atsushi; Katsuta, Junichiro; Ohno, Masanori; Takahashi, Hiromitsu] Hiroshima Univ, Dept Phys Sci, Higashihiroshima, Hiroshima 7398526, Japan. [Hayashi, Katsuhiro] Nagoya Univ, Grad Sch Sci, Div Particle Phys & Astron, Chikusa Ku, Nagoya, Aichi 4648602, Japan. [Kataoka, Jun] Waseda Univ, Res Inst Sci & Engn, Shinjuku Ku, 3-4-1 Okubo, Tokyo 1698555, Japan. [Laurent, Philippe; Lebrung, Francois; Limousin, Olivier] CEA Saclay, Serv Astrophys, APC, IRFU, F-91191 Gif Sur Yvette, France. [Makishima, Kazuo] Inst Phys & Chem Res, Global Res Cluster, MAXI Team, 2-1 Hirosawa, Wako, Saitama 3510198, Japan. [Mizuno, Tsunefumi] Hiroshima Univ, Hiroshima Astrophys Sci Ctr, Higashihiroshima, Hiroshima 7398526, Japan. [Nakamori, Takeshi] Yamagata Univ, Fac Sci, Dept Phys, Kojirakawa, Yamagata 9908560, Japan. [Nakano, Toshio; Yuasa, Takayuki] Inst Phys & Chem Res, Nishina Ctr, 2-1 Hirosawa, Wako, Saitama 3510198, Japan. [Noda, Hirofumi] Tohoku Univ, Frontier Res Inst Interdisciplinary Sci, Aoba Ku, Aramaki Aza Aoba 6-3, Sendai, Miyagi 9808578, Japan. [Odaka, Hirokazu] Stanford Univ, Natl Accelerator Lab, SLAC, 2575 Sand Hill Rd, Menlo Pk, CA 94025 USA. [Saito, Shinya; Uchiyama, Yasunobu] Rikkyo Univ, Dept Phys, Toshima Ku, Tokyo 1718501, Japan. [Tajima, Hiroyasu; Yamaoka, Kazutaka] Nagoya Univ, Inst Space Earth Environm Res, Chikusa Ku, Nagoya, Aichi 4648601, Japan. [Takeda, Shin'ichiro] OIST, Adv Med Instrumentat Unit, 1919-1 Tancha, Okinawa 9040495, Japan. [Terada, Yukikatsu] Saitama Univ, Dept Phys, Saitama, Saitama 3388570, Japan. [Uchiyama, Hideki] Shizuoka Univ, Fac Educ, Sci Educ, Shizuoka 4228529, Japan. [Yatsu, Yoichi] Tokyo Inst Technol, Dept Phys, Meguro Ku, Tokyo 1528551, Japan. RP Nakazawa, K (reprint author), Univ Tokyo, Dept Phys, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1130033, Japan. EM nakazawa@juno.phys.s.u-tokyo.ac.jp OI , kouichi/0000-0003-4235-5304 NR 18 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 978-1-5106-0189-5; 978-1-5106-0190-1 J9 PROC SPIE PY 2016 VL 9905 AR UNSP 990511 DI 10.1117/12.2231176 PN 1 PG 13 WC Instruments & Instrumentation; Optics SC Instruments & Instrumentation; Optics GA BG2WP UT WOS:000387731500026 ER PT S AU Soffitta, P Bellazzini, R Bozzo, E Burwitz, V Castro-Tirado, AJ Costa, E Courvoisier, T Feng, H Gburek, S Goosmann, R Karas, V Matt, G Muleri, F Nandra, K Pearce, M Poutanen, J Reglero, V Maria, DS Santangelo, A Tagliaferri, G Tenzer, C Vink, J Weisskopf, MC Zane, S Agudo, I Antonelli, A Attina, P Baldini, L Bykov, A Carpentiero, R Cavazzuti, E Churazov, E Del Monte, E De Martino, D Donnarunnna, I Doroslienko, V Evangelista, Y Ferreira, I Gallo, E Grosso, N Kaaret, P Kuulkers, E Laranaga, J Latronico, L Lumb, DH Macian, J Malzac, J Marin, F Massaro, E Minuti, M Mundell, C Ness, JU Oosterbroek, T Paltani, S Pareschi, G Perna, R Petrucci, PO Pinazo, HB Pinchera, M Rodriguez, JP Roncadelli, M Santovincenzo, A Sazonov, S Sgro, C Spiga, D Svoboda, J Theobald, C Theodorou, T Turolla, R de Ona, EW Winter, B Akbar, AM Allan, H Aloisio, B Altamirano, D Amati, L Amato, E Angelakis, E Arezu, J Atteia, JL Axelsson, M Bachetti, M Ballo, L Balman, S Bandiera, R Barcons, N Basso, S Baykal, A Backer, W Behar, E Beheshtipour, B Belmont, R Berger, L Bernardini, F Bianchi, S Bisnovatvi-Kogan, G Blasi, P Blay, P Bodaghee, A Boer, M Boettcher, M Bogdanov, S Bombaci, I Bonino, R Braga, J Brandt, W Brez, A Bucciantini, N Burderi, L Caiazzo, I Campana, R Campana, S Capitanio, F Cappi, M Cardillo, M Casella, P Catmabacak, O Cenko, B Cerda-Duran, P Cerruti, C Chaty, S Chauvin, M Chen, V Chenevez, J Chernyakova, M Teddy, CCC Christodoulou, D Connell, P Corbet, R Zelati, FC Covino, S Cui, W Cusumano, G D'Ai, A D'Ammando, F Dadina, M De Rosa, A De Ruvo, L Degenaar, N Del Santo, M Del Zanna, L Dewangan, G Di Cosimo, S Di Lalla, N Di Persio, G Di Salvo, T Dias, T Done, C Dovciak, M Doyle, G Ducci, L Elsner, R Enoto, T Escada, J Esposito, P Eyles, C Fabiani, S Falanga, M Falocco, S Fan, Y Fender, R Feroci, M Ferrigno, C Forman, W Foschini, L Fragile, C Fuerst, F Fujita, Y Gasent-Blesa, JL Gelfand, J Gendre, B Ghirlanda, G Ghisellini, G Giroletti, M Goetz, D Gomez, JL Gonzalez, D Gonzalcz-Riestra, R Gotthelf, E Gou, L Grandi, P Grinberg, V Grise, F Guidorzi, C Gurlebeck, N Guver, T Haggard, D Hardcastle, M Hartmann, D Haswell, C Heger, A Hernanz, M Heyl, J Ho, L Hoormann, J Horak, J Huovelin, J Huppenkothen, D Iaria, R Inam, SC Ingram, A Israel, G Izzo, L Burgess, M Jackson, M Ji, L Ji, L Jiang, J Johannsen, T Jones, C Jorstad, S Kajava, JJE Kalamkar, M Kalemci, L Kallman, T Kamble, A Kislat, F Kiss, M Klochkov, D Koerding, E Kolehmainen, M Koljonen, K Komossa, S Kong, A Korpela, S Kowalinski, M Krawczynski, H Kreykenbohm, I Kuss, M Lai, D Lan, M Larsson, J Laycock, S Lazzati, D Leahy, D Li, H Li, J Li, LX Li, T Li, Z Linares, M Lister, M Liu, H Lodato, G Lohfink, A Longo, F Luna, G Lutovinov, A Mahmoodifar, S Maia, J Mainieri, V Maitra, C Maitra, D Majczyna, A Maldera, S Malyshev, D Manfreda, A Manousakis, A Manuel, R Margutti, R Marinucci, A Markoff, S Marschcr, A Marshall, H Massaro, F McLaughlin, M Medina-Tanco, G Mehdipour, N Middleton, N Mignari, R Mimica, P Mineo, T Mingo, B Miniutti, G Mirac, SM Morlino, G Motlagli, AV Motta, SE Muslitukov, A Nagataki, S Nardini, F Nattila, J Navarro, GJ Negri, B Negro, M Nenonen, S Neustroev, V Nicastro, F Norton, A Nucita, A O'Brien, P O'Dell, S Odaka, H Olmi, B Omodei, N Orienti, M Orlandini, M Osborne, J Pacciani, L Paliya, VS Papadakis, I Papitto, A Paragi, Z Pascal, P Paul, B Pavan, L Pellizzoni, A Perinati, E Pesce-Rollins, M Piconcelli, E Pili, AG Pilia, M Pohl, M Ponti, G Porquet, D Possenti, A Postnov, K Prandoni, I Produit, N Puehlhofer, G Ramsey, B Razzano, M Rea, N Reig, P Reinsch, K Reiprich, T Reynolds, M Risaliti, G Roberts, T Rodriguez, J Rossi, ME Rosswog, S Rozanska, A Rubini, A Rudak, B Russell, D Ryde, F Sabatini, S Sala, G Salvati, M Sasaki, M Savolainen, T Saxton, R Scaringi, S Schawinski, K Schulz, NS Schwope, A Severgnini, P Sharon, M Shaw, A Shearer, A Shesheng, X Shih, IC Silva, K Silva, R Silver, E Sniale, A Spada, F Spandre, G Stamerra, A Stappers, B Starrfield, S Stawarz, L Stergioulas, N Stevens, A Stiele, H Suleimanov, V Sunyaev, R Slowikowska, A Tamborra, F Tavecchio, F Taverna, R Tiengo, A Tolos, L Tombesi, F Tomsick, J Tong, H Torok, G Torres, DF Tortosa, A Tramacere, A Trimble, V Trinchieri, G Tsygankov, S Tuerler, M Turriziani, S Ursini, F Uttley, P Varniere, P Vincent, F Vurgun, E Wang, C Wang, Z Watts, A Wheeler, JC Wiersema, K Wijnands, R Wilms, J Wolter, A Wood, K Wu, K Wu, X Xiangyu, W Xie, F Xu, R Yan, SP Yang, J Vu, W Yuan, F Zajczyk, A Zanetti, D Zanin, R Zanni, C Zappacosta, L Zdziarski, AA Zech, A Zhang, H Zhang, S Zhang, S Zhang, W Zoghbi, A AF Soffitta, P. Bellazzini, R. Bozzo, E. Burwitz, V Castro-Tirado, A. J. Costa, E. Courvoisier, T. Feng, H. Gburek, S. Goosmann, R. Karas, V Matt, G. Muleri, F. Nandra, K. Pearce, M. Poutanen, J. Reglero, V Maria, Sabau D. Santangelo, A. Tagliaferri, G. Tenzer, C. Vink, J. Weisskopf, M. C. Zane, S. Agudo, I Antonelli, A. Attina, P. Baldini, L. Bykov, A. Carpentiero, R. Cavazzuti, E. Churazov, E. Del Monte, E. De Martino, D. Donnarunnna, I Doroslienko, V Evangelista, Y. Ferreira, I Gallo, E. Grosso, N. Kaaret, P. Kuulkers, E. Laranaga, J. Latronico, L. Lumb, D. H. Macian, J. Malzac, J. Marin, F. Massaro, E. Minuti, M. Mundell, C. Ness, J. U. Oosterbroek, T. Paltani, S. Pareschi, G. Perna, R. Petrucci, P. -O Pinazo, H. B. Pinchera, M. Rodriguez, J. P. Roncadelli, M. Santovincenzo, A. Sazonov, S. Sgro, C. Spiga, D. Svoboda, J. Theobald, C. Theodorou, T. Turolla, R. de Ona, Wilhelmi E. Winter, B. Akbar, A. M. Allan, H. Aloisio, B. Altamirano, D. Amati, L. Amato, E. Angelakis, E. Arezu, J. Atteia, J. -L Axelsson, M. Bachetti, M. Ballo, L. Balman, S. Bandiera, R. Barcons, N. Basso, S. Baykal, Altan Backer, W. Behar, E. Beheshtipour, B. Belmont, R. Berger, L. Bernardini, F. Bianchi, S. Bisnovatvi-Kogan, G. Blasi, P. Blay, P. Bodaghee, A. Boer, M. Boettcher, M. Bogdanov, S. Bombaci, I Bonino, R. Braga, J. Brandt, W. Brez, A. Bucciantini, N. Burderi, L. Caiazzo, I Campana, R. Campana, S. Capitanio, F. Cappi, M. Cardillo, M. Casella, P. Catmabacak, O. Cenko, B. Cerda-Duran, P. Cerruti, C. Chaty, S. Chauvin, M. Chen, V Chenevez, J. Chernyakova, M. Teddy, Cheung C. C. Christodoulou, D. Connell, P. Corbet, R. Zelati, Coti F. Covino, S. Cui, W. Cusumano, G. D'Ai, A. D'Ammando, F. Dadina, M. De Rosa, A. De Ruvo, L. Degenaar, N. Del Santo, M. Del Zanna, L. Dewangan, G. Di Cosimo, S. Di Lalla, N. Di Persio, G. Di Salvo, T. Dias, T. Done, C. Dovciak, M. Doyle, G. Ducci, L. Elsner, R. Enoto, T. Escada, J. Esposito, P. Eyles, C. Fabiani, S. Falanga, M. Falocco, S. Fan, Y. Fender, R. Feroci, M. Ferrigno, C. Forman, W. Foschini, L. Fragile, C. Fuerst, F. Fujita, Y. Gasent-Blesa, J. L. Gelfand, J. Gendre, B. Ghirlanda, G. Ghisellini, G. Giroletti, M. Goetz, D. Gomez, J. -L Gonzalez, D. Gonzalcz-Riestra, R. Gotthelf, E. Gou, L. Grandi, P. Grinberg, V Grise, F. Guidorzi, C. Gurlebeck, N. Guver, T. Haggard, D. Hardcastle, M. Hartmann, D. Haswell, C. Heger, A. Hernanz, M. Heyl, J. Ho, L. Hoormann, J. Horak, J. Huovelin, J. Huppenkothen, D. Iaria, R. Inam, Sitki C. Ingram, A. Israel, G. Izzo, L. Burgess, M. Jackson, M. Ji, L. Ji, L. Jiang, J. Johannsen, T. Jones, C. Jorstad, S. Kajava, J. J. E. Kalamkar, M. Kalemci, L. Kallman, T. Kamble, A. Kislat, F. Kiss, M. Klochkov, D. Koerding, E. Kolehmainen, M. Koljonen, K. Komossa, S. Kong, A. Korpela, S. Kowalinski, M. Krawczynski, H. Kreykenbohm, I Kuss, M. Lai, D. Lan, M. Larsson, J. Laycock, S. Lazzati, D. Leahy, D. Li, H. Li, J. Li, L. -X Li, T. Li, Z. Linares, M. Lister, M. Liu, H. Lodato, G. Lohfink, A. Longo, F. Luna, G. Lutovinov, A. Mahmoodifar, S. Maia, J. Mainieri, V Maitra, C. Maitra, D. Majczyna, A. Maldera, S. Malyshev, D. Manfreda, A. Manousakis, A. Manuel, R. Margutti, R. Marinucci, A. Markoff, S. Marschcr, A. Marshall, H. Massaro, F. McLaughlin, M. Medina-Tanco, G. Mehdipour, N. Middleton, N. Mignari, R. Mimica, P. Mineo, T. Mingo, B. Miniutti, G. Mirac, S. M. Morlino, G. Motlagli, A., V Motta, S. E. Muslitukov, A. Nagataki, S. Nardini, F. Nattila, J. Navarro, G. J. Negri, B. Negro, M. Nenonen, S. Neustroev, V Nicastro, F. Norton, A. Nucita, A. O'Brien, P. O'Dell, S. Odaka, H. Olmi, B. Omodei, N. Orienti, M. Orlandini, M. Osborne, J. Pacciani, L. Paliya, V. S. Papadakis, I Papitto, A. Paragi, Z. Pascal, P. Paul, B. Pavan, L. Pellizzoni, A. Perinati, E. Pesce-Rollins, M. Piconcelli, E. Pili, A. G. Pilia, M. Pohl, M. Ponti, G. Porquet, D. Possenti, A. Postnov, K. Prandoni, I Produit, N. Puehlhofer, G. Ramsey, B. Razzano, M. Rea, N. Reig, P. Reinsch, K. Reiprich, T. Reynolds, M. Risaliti, G. Roberts, T. Rodriguez, J. Rossi, M. E. Rosswog, S. Rozanska, A. Rubini, A. Rudak, B. Russell, D. Ryde, F. Sabatini, S. Sala, G. Salvati, M. Sasaki, M. Savolainen, T. Saxton, R. Scaringi, S. Schawinski, K. Schulz, N. S. Schwope, A. Severgnini, P. Sharon, M. Shaw, A. Shearer, A. Shesheng, X. Shih, I. -C Silva, K. Silva, R. Silver, E. Sniale, A. Spada, F. Spandre, G. Stamerra, A. Stappers, B. Starrfield, S. Stawarz, L. Stergioulas, N. Stevens, A. Stiele, H. Suleimanov, V Sunyaev, R. Slowikowska, A. Tamborra, F. Tavecchio, F. Taverna, R. Tiengo, A. Tolos, L. Tombesi, F. Tomsick, J. Tong, H. Torok, G. Torres, D. F. Tortosa, A. Tramacere, A. Trimble, V Trinchieri, G. Tsygankov, S. Tuerler, M. Turriziani, S. Ursini, F. Uttley, P. Varniere, P. Vincent, F. Vurgun, E. Wang, C. Wang, Z. Watts, A. Wheeler, J. C. Wiersema, K. Wijnands, R. Wilms, J. Wolter, A. Wood, K. Wu, K. Wu, X. Xiangyu, W. Xie, F. Xu, R. Yan, S. -P Yang, J. Yu, W. Yuan, F. Zajczyk, A. Zanetti, D. Zanin, R. Zanni, C. Zappacosta, L. Zdziarski, A. A. Zech, A. Zhang, H. Zhang, S. Zhang, S. Zhang, W. Zoghbi, A. BE DenHerder, JWA Takahashi, T Bautz, M TI XIPE the X-ray Imaging Polarimetry Explorer SO SPACE TELESCOPES AND INSTRUMENTATION 2016: ULTRAVIOLET TO GAMMA RAY SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Space Telescopes and Instrumentation - Ultraviolet to Gamma Ray CY JUN 26-JUL 01, 2016 CL Edinburgh, SCOTLAND SP SPIE DE X-ray Astronomy; Polarimetry; X-ray optics; Gas Pixel Detector ID GAS PIXEL DETECTOR; POLARIZATION; RADIATION AB XIPE, the X-ray Imaging Polarimetry Explorer, is a mission dedicated to X-ray Astronomy. At the time of writing XIPE is in a competitive phase A as fourth medium size mission of ESA (M4). It promises to reopen the polarimetry window in high energy Astrophysics after more than 4 decades thanks to a detector that efficiently exploits the photoelectric effect and to X-ray optics with large effective area. XIPE uniqueness is time-spectrally-spatially- resolved X-ray polarimetry as a breakthrough in high energy astrophysics and fundamental physics. Indeed the payload consists of three Gas Pixel Detectors at the focus of three X-ray optics with a total effective area larger than one XMM mirror but with a low weight. The payload is compatible with the fairing of the Vega launcher. XIPE is designed as an observatory for X- ray astronomers with 75% of the time dedicated to a Guest Observer competitive program and it is organized as a consortium across Europe with main contributions from Italy, Germany, Spain, United Kingdom, Poland, Sweden. C1 [Soffitta, P.; Costa, E.; Muleri, F.; Attina, P.; Del Monte, E.; Donnarunnna, I; Evangelista, Y.; Capitanio, F.; Cardillo, M.; De Rosa, A.; Di Cosimo, S.; Di Persio, G.; Fabiani, S.; Feroci, M.; Pacciani, L.; Rubini, A.; Sabatini, S.] IAPS INAF, Via Fosso del Cavaliere 100, I-00133 Rome, Italy. [Bellazzini, R.; Baldini, L.; Minuti, M.; Pinchera, M.; Sgro, C.; Bombaci, I; Brez, A.; De Ruvo, L.; Di Lalla, N.; Kuss, M.; Pesce-Rollins, M.; Razzano, M.; Spada, F.; Spandre, G.; Zanetti, D.] Univ Pisa, Largo B Pontecorvo 3, I-56127 Pisa, Italy. [Bellazzini, R.; Baldini, L.; Minuti, M.; Pinchera, M.; Sgro, C.; Bombaci, I; Brez, A.; De Ruvo, L.; Di Lalla, N.; Kuss, M.; Pesce-Rollins, M.; Razzano, M.; Spada, F.; Spandre, G.; Zanetti, D.] INFN Pisa, Largo B Pontecorvo 3, I-56127 Pisa, Italy. [Bozzo, E.; Courvoisier, T.; Paltani, S.; Ducci, L.; Ferrigno, C.; Malyshev, D.; Pavan, L.; Produit, N.; Tramacere, A.; Tuerler, M.] Univ Geneva, Dept Astron, Chemin Ecogia 16, CH-1290 Versoix, Switzerland. [Burwitz, V; Nandra, K.; Backer, W.; Ponti, G.; Scaringi, S.] MPI Fuer Extraterrestr Phys, Giessenbachstr 1, D-85748 Garching, Germany. [Castro-Tirado, A. J.; Gomez, J. -L; Hernanz, M.; Li, J.; Rea, N.; Tolos, L.; Torres, D. F.] CSIC, Inst Astrofs Andaluca, Apt 3004, E-18080 Granada, Spain. [Feng, H.; Li, H.; Li, T.] Tsinghua Univ, Dept Engn Phys, Beijing 100084, Peoples R China. [Feng, H.; Li, H.; Li, T.] Tsinghua Univ, Ctr Astrophys, Beijing 100084, Peoples R China. [Feng, H.] Tsinghua Univ, Minist Educ, Key Lab Particle & Radiat Imaging, Haidian Qu, Beijing Shi, Peoples R China. [Gburek, S.; Kowalinski, M.] Polish Acad Sci, Solar Phys Div, Space Res Ctr, PL-51622 Wroclaw, Poland. [Goosmann, R.; Grosso, N.; Grise, F.; Porquet, D.] Observ Astron, 11 Rue Luniv, F-67000 Strasbourg, France. [Karas, V; Marin, F.; Svoboda, J.; Dovciak, M.; Horak, J.] Astron Inst Acad Sci Czech Republ, Bocni II 1401, CZ-14131 Prague, Czech Republic. [Matt, G.; Bianchi, S.; Marinucci, A.; Tamborra, F.; Tortosa, A.] Univ Roma Tre, Dipartimento Matemat & Fis, Via Vasca Navale 84, I-00146 Rome, Italy. [Poutanen, J.; Neustroev, V] Univ Turku, Tuorla Observ, FI-21500 Piikkio, Finland. [Maria, Sabau D.; Manuel, R.; Miniutti, G.] Natl Inst Aerosp Technol INTA, Carretera Ajalvir Km 4, Torrejon De Ardoz 28850, Spain. [Santangelo, A.; Tenzer, C.; Doroslienko, V; Ducci, L.; Klochkov, D.; Perinati, E.; Puehlhofer, G.; Sasaki, M.; Suleimanov, V] IAAT Univ Tuebingen, Sand 1, D-72076 Tubingen, Germany. [Tagliaferri, G.; Pareschi, G.; Spiga, D.; Ballo, L.; Basso, S.; Campana, S.; Zelati, Coti F.; Covino, S.; Foschini, L.; Ghirlanda, G.; Ghisellini, G.; Guidorzi, C.; Severgnini, P.; Tavecchio, F.; Trinchieri, G.; Wolter, A.] INAF OA Brera, Via E Bianchi 46, I-23807 Merate, LC, Italy. [Reglero, V; Macian, J.; Pinazo, H. B.; Rodriguez, J. P.; Blay, P.; Cerda-Duran, P.; Cerruti, C.; Connell, P.; Eyles, C.; Gasent-Blesa, J. L.; Mimica, P.; Navarro, G. J.] Univ Valencia, Av de Vicente Blasco Ibez 13, Valencia 46010, Spain. [Weisskopf, M. C.; Cenko, B.; Elsner, R.; O'Dell, S.; Ramsey, B.] NASA, Marshall Space Flight Control Ctr, Washington, DC USA. [Zane, S.; Theobald, C.; Theodorou, T.; Winter, B.; Gonzalez, D.; Wu, X.] MSSL, Dorking RH5 6NT, Surrey, England. [Agudo, I] Glorieta Astronoma IAAC CSIC, Inst Astrofis Andalucia, E-18008 Granada, Spain. [Bykov, A.] Ioffe Physicotech Inst, Politekhn Skaya 26, St Petersburg 194021, Russia. [Churazov, E.; Sunyaev, R.; Zhang, W.] Max Planck Inst Astrophys, Karl Schwarzschild Str 1,Postfach 1317, D-85711 Garching, Germany. [De Martino, D.] INAF OA Capodimonte, Salita Moiariello 16, I-80131 Naples, Italy. [Gallo, E.; Zoghbi, A.] Univ Michigan Astron, 1085 S Univ Ave,305A West Hall, Ann Arbor, MI 48109 USA. [Kaaret, P.; Reynolds, M.] Michigan State Univ, 567 Wilson Rd, E Lansing, MI 48824 USA. [Malzac, J.; Atteia, J. -L; Belmont, R.] IRAP, Ave Colonel Roche,9,BP, F-44346 Toulouse, France. [Doyle, G.] Armagh Observ, Coll Hill, Armagh BT61 9DG, North Ireland. [Mundell, C.] Univ Bath, Claverton Down, Bath BA2 7AY, Avon, England. [Perna, R.] SUNY Stony Brook, Dept Phys & Astron, Stony Brook, NY 11794 USA. [Petrucci, P. -O; Ursini, F.] Univ Grenoble Alpes, Inst Planetol & Astrophys Grenoble, CS 40700, F-38058 Grenoble 9, France. [Roncadelli, M.] INFN Pavia, Via Agostino Bassi 6, I-27100 Pavia, Italy. [Sazonov, S.; Bisnovatvi-Kogan, G.; Lutovinov, A.] Russian Acad Sci, Space Res Inst, 84-32 Profsoyuznaya Str, Moscow, Russia. [Turolla, R.; Taverna, R.] Univ Padua, Dept Phys & Astron, Via Marzolo 8, I-35131 Padua, Italy. [Vink, J.; Altamirano, D.; Degenaar, N.; Ingram, A.; Markoff, S.; Muslitukov, A.; Stevens, A.; Uttley, P.; Watts, A.; Wijnands, R.] Univ Amsterdam, Astron Inst Anton Pannekoek, Sci Pk 904, NL-1098 XH Amsterdam, Netherlands. [de Ona, Wilhelmi E.] Inst Ciences Espai, Campus UAB,Carrer Can Magrans S-N, Cerdanyola Del Valles 08193, Spain. [Ferreira, I; Kuulkers, E.; Laranaga, J.; Lumb, D. H.; Oosterbroek, T.; Santovincenzo, A.] ESA ESTEC, Keplerlaan 1, NL-2201 AZ Noordwijk, Netherlands. [Akbar, A. M.] Effat Univ, POB 34689, Jeddah 21478, Saudi Arabia. [Allan, H.; Chenevez, J.] Tech Univ Denmark, Natl Space Inst, Elektrovej Bld 327, DK-2800 Lyngby, Denmark. [Aloisio, B.; Amato, E.; Bandiera, R.; Blasi, P.; Bucciantini, N.; Del Zanna, L.; Risaliti, G.; Salvati, M.] INAF, Arcetri Observ, Largo Enrico Fermi 5, I-50125 Florence, Italy. [Amati, L.; Campana, R.; Cappi, M.; D'Ammando, F.; Dadina, M.; Giroletti, M.; Grandi, P.; Orienti, M.; Orlandini, M.] INAF IASF Bologna, Via P Gobetti 101, I-40129 Bologna, Italy. [Angelakis, E.; Komossa, S.] Max Planck Inst Radioastron, Auf Hgel 69, D-53121 Bonn, Endenich, Germany. [Antonelli, A.] ASDC, Via Politecn Snc, I-00133 Rome, Italy. [Arezu, J.] Buein Zahra Tech Univ, Dept Phys & Engn Phys, Qazvin, Iran. [Pearce, M.; Axelsson, M.; Chauvin, M.; Burgess, M.; Kiss, M.; Larsson, J.; Ryde, F.; Xie, F.] KTH Royal Inst Technol, Valhallavagen 79, S-10044 Stockholm, Sweden. [Bachetti, M.; Pellizzoni, A.; Pilia, M.; Possenti, A.] INAF OA Cagliari, Str 54, I-09012 Capoterra, Italy. [Latronico, L.; Bonino, R.; Maldera, S.; Manfreda, A.; Massaro, F.; Negro, M.] INFN Torino, Via Pietro Giuria 1, I-10125 Turin, Italy. [Balman, S.; Baykal, Altan; Inam, Sitki C.; Mirac, S. M.] Middle East Tech Univ, Mah Dumlupnar Blv 1, TR-06800 Ankara, Turkey. [Barcons, N.] Inst Fsica Cantabria, E-39005 Santander, Spain. [Behar, E.] Technion Israel Inst Technol, IL-3200003 Haifa, Israel. [Beheshtipour, B.; Hoormann, J.; Kislat, F.; Krawczynski, H.; Zajczyk, A.] Washington Univ, 1 Brookings Dr, St Louis, MO 63130 USA. [Berger, L.; Forman, W.; Jones, C.; Kamble, A.; Silver, E.] Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA. [Bernardini, F.; Gelfand, J.; Huppenkothen, D.; Koljonen, K.; Russell, D.] NYUAD, POB 129188, Abu Dhabi, U Arab Emirates. [Bodaghee, A.] Georgia Coll, 231 W Hancock St, Milledgeville, GA 31061 USA. [Boer, M.] Univ Nice Sophia Antipolis, CNRS, ARTEMIS UMR 7250, Observ Cote Azur,CS 34229, F-06304 Nice, France. [Boettcher, M.] North West Univ, Albert Luthuli & Univ Dr, ZA-2790 Mmabatho, Mahikeng, South Africa. [Bogdanov, S.; Gotthelf, E.] Columbia Univ, 116th St & Broadway, New York, NY 10027 USA. [Braga, J.; Silva, K.] INPE, Ave Astronautas 1-758,Jd Granja, BR-12227010 Sao Jose Dos Campos, Brazil. [Brandt, W.] Penn State Univ, University Pk, PA 16802 USA. [Burderi, L.] Univ Cagliari, Str Prov Sestu KM 1, I-09042 Monserrato, Italy. [Caiazzo, I; Heyl, J.] Dept Phys & Astron, 6224 Agr Rd, Vancouver, BC V6T 1Z1, Canada. [Carpentiero, R.; Cavazzuti, E.; Negri, B.] Agenzia Spaziale Italiana, Unita Osservaz Universo, Viale Liegi 26, I-00198 Rome, Italy. [Casella, P.; Israel, G.; Kalamkar, M.; Nicastro, F.; Papitto, A.; Piconcelli, E.; Prandoni, I; Zappacosta, L.] INAF OA Roma, Via Frascati 33, I-00040 Monte Porzio Catone, Italy. [Catmabacak, O.; Kalemci, L.] Sabanci Univ, TR-34956 Istanbul, Turkey. [Chaty, S.; Goetz, D.; Maitra, C.; Rodriguez, J.] CEA Saclay, DSM IRFU SAp, F-91191 Gif Sur Yvette, France. [Chen, V; Lan, M.; Wu, K.; Xiangyu, W.] Nanjing Univ, 22 Hankou Rd, Nanjing 210093, Jiangsu, Peoples R China. [Chernyakova, M.] Dublin City Univ, Sch Phys Sci, Dublin 9, Ireland. [Teddy, Cheung C. C.; Wood, K.] NRL, 4555 Overlook Ave SW, Washington, DC 20375 USA. [Christodoulou, D.; Laycock, S.; Yang, J.] Univ Massachusetts, 1 Univ Ave, Lowell, MA 01852 USA. [Corbet, R.] Univ Maryland, 1000 Hilltop Circle, Baltimore, MD 21250 USA. [Cui, W.; Lister, M.] Purdue Univ, 525 Northwestern Ave, W Lafayette, IN 47907 USA. [Cusumano, G.; Del Santo, M.; Mineo, T.] INAF IASF, Via Ugo La Malfa 153, I-90146 Palermo, Italy. [D'Ai, A.; Di Salvo, T.; Iaria, R.] Univ Palermo, Dipartimento Fis, Via Archirafi 36, I-90123 Palermo, Italy. [Dewangan, G.; Dias, T.] Interuniv Ctr Astron & Astrophys, Pune Univ Campus, Pune 411007, Maharashtra, India. [Escada, J.; Maia, J.; Silva, R.] Univ Coimbra, Dept Fsica, LIP, P-3004516 Coimbra, Portugal. [Done, C.; Kolehmainen, M.; Roberts, T.] Univ Durham, Stockton Rd, Durham DH1 3UP, England. [Enoto, T.; Kallman, T.; Mahmoodifar, S.; Sniale, A.] Goddard Space Flight Ctr, 8800 Greenbelt Rd, Greenbelt, MD 20771 USA. [Esposito, P.; Mignari, R.] INAF IASF Milano, Via E Bassini 15, I-20133 Milan, Italy. [Falanga, M.] ISSI, Hallerstr 6, CH-3012 Bern, Switzerland. [Falocco, S.] Univ Napoli Federico II, Dipartimento Fis, Via Cinthia, I-80126 Naples, Italy. [Fan, Y.; Ji, L.; Yan, S. -P] Chinese Acad Sci, Purple Mt Observ, 2 West Beijing Rd, Nanjing 210008, Jiangsu, Peoples R China. [Fender, R.; Motta, S. E.] Univ Oxford, Dept Phys, Clarendon Lab, Parks Rd, Oxford OX1 3PU, England. [Fragile, C.] Coll Charleston, 66 George St, Charleston, SC 29424 USA. [Fuerst, F.] CALTECH, MC 290-17, Pasadena, CA 91125 USA. [Fujita, Y.] Osaka Univ, 1-1 Machikaneyama Cho, Toyonaka, Osaka 5600043, Japan. [Gendre, B.] Univ Virgin Isl, Coll Sci, 2 John Brewers Bay, St Thomas, VI 00802 USA. [Gonzalcz-Riestra, R.] VILSPA, ESA, XMM Newton Sci Operat Ctr, POB 50727, E-28080 Madrid, Spain. [Gou, L.; Wang, C.] Chinese Acad Sci, Natl Astron Observ, 20A Datun Rd, Beijing, Peoples R China. [Grinberg, V; Linares, M.; Marshall, H.; Schulz, N. S.] MIT, 77 Massachusetts Ave, Cambridge, MA 02139 USA. [Gurlebeck, N.] Univ Bremen, Ctr Appl Space Technol & Micrograv, ZARM, D-28359 Bremen, Germany. [Guver, T.; Motlagli, A., V; Vurgun, E.] Istanbul Univ, TR-34452 Beyazit, Fatih Stanbul, Turkey. [Haggard, D.] McGill Univ, 3550 Univ St, Montreal, PQ H3A 2A7, Canada. [Ness, J. U.; Kajava, J. J. E.; Saxton, R.] ESA ESAC, Camino Bajo Castillo S-N, Madrid 28692, Spain. [Hardcastle, M.] Univ Hertfordshire, De Havilland Campus, Hatfield AL10 9EU, Herts, England. [Hartmann, D.; Paliya, V. S.] Clemson Univ, Clemson, SC 29634 USA. [Haswell, C.; Norton, A.] Open Univ, Walton Hall, Milton Keynes MK7 6AA, Bucks, England. [Heger, A.; Ho, L.] Monash Univ, Sch Phys, Monash Ctr Astrophys, Clayton, Vic 3800, Australia. [Heger, A.; Ho, L.] Monash Univ, Sch Math Sci, Clayton, Vic 3800, Australia. [Xu, R.] Peking Univ, 5 Yiheyuan Rd Haidian Dist, Beijing 100871, Peoples R China. [Stiele, H.] Tsinghua Univ, 30 Shuangqing Rd, Beijing, Peoples R China. [Huovelin, J.; Korpela, S.] Univ Helsinki, Dept Phys, Div Geophys & Astron, POB 48, FI-00014 Helsinki, Finland. [Izzo, L.] Sapienza Univ, Ple A Moro 2, I-00185 Rome, Italy. [Izzo, L.] ICRA, Ple A Moro 2, I-00185 Rome, Italy. [Jackson, M.] Cardiff Univ, Cardiff CF10 3XQ, Wales. [Jiang, J.] Fudan Univ, 220 Handan Rd, Shanghai, Peoples R China. [Ji, L.; Zhang, S.; Zhang, S.] Inst High Energy Phys, 19B YuquanLu, Beijing 1000049, Peoples R China. [Johannsen, T.] Perimeter Inst Theoret Phys, 31 Caroline St North, Waterloo, ON N2L 2Y5, Canada. [Jorstad, S.] Boston Univ, Inst Astrophys Res, Address 725 Commonwealth Ave, Boston, MA 02215 USA. [Koerding, E.] Radboud Univ Nijmegen, Comeniuslaan 4, NL-6525 HP Nijmegen, Netherlands. [Kong, A.] Natl Tsing Hua Univ, 101,Sect 2,Guangiu Rd, Hsinchu, Taiwan. [Kreykenbohm, I; Wilms, J.] Univ Erlangen Nurnberg, Schlosspl 4, D-91054 Erlangen, Germany. [Lai, D.] Cornell Univ, Space Bldg, Ithaca, NY 14853 USA. [Lazzati, D.] Oregon State Univ, Dept Phys, 301 Weniger Hall, Corvallis, OR 97331 USA. [Leahy, D.] Univ Calgary, 2500 Univ Dr NW, Calgary, AB T2N 1N4, Canada. [Li, L. -X] Kavli Inst Astron & Astrophys, Qinghua W Rd, Beijing, Peoples R China. [Li, Z.] Xiangtan Univ, Dept Phys, Xiangtan, Hunan, Peoples R China. [Liu, H.] Guangxi Univ, Nanning, Xixiangtang, Peoples R China. [Lodato, G.] Univ Milan, Dipartimento Fis, Via Celoria 16, I-20133 Milan, Italy. [Lohfink, A.; Middleton, N.] Univ Cambridge, Inst Astron, Madingley Rd, Cambridge CB3 0HA, England. [Longo, F.] Univ Trieste, Via Alfonso Valerio 32, I-34128 Trieste, Italy. [Luna, G.] IAFE COBNICET, RA-2290 Buenos Aires, DF, Argentina. [Mainieri, V] ESO, Karl Schwarzschild Str 2, D-85748 Garching, Germany. [Maitra, D.] Wheaton Coll, Dept Phys & Astron, 501 Coll Ave, Wheaton, IL 60187 USA. [Majczyna, A.] Natl Ctr Nucl Res, Andrzeja Soltana 7, PL-05400 Otwock, Poland. [Manousakis, A.; Rozanska, A.; Rudak, B.; Zdziarski, A. A.] Copernicus Astron Ctr, Bartycka 18, Warsaw, Poland. [Margutti, R.] NYU, New York, NY USA. [Marschcr, A.] Boston Univ, Boston, MA 02215 USA. [Massaro, E.; Shesheng, X.] Univ Roma La Sapienza, Piazzale Aldo Moro 5, I-00185 Rome, Italy. [McLaughlin, M.] West Virginia Univ, Morgantown, WV 26506 USA. [Medina-Tanco, G.] Univ Nacl Autonoma Mexico, Inst Ciencias Nucl, Apartado Postal 70-543,Ciudad Univ, Mexico City 04510, DF, Mexico. [Mehdipour, N.] SRON, Sorbonnelaan 2, NL-3584 CA Utrecht, Netherlands. [Mingo, B.; O'Brien, P.; Osborne, J.; Wiersema, K.] Univ Leicester, Univ Rd, Leicester LE1 7RH, Leics, England. [Morlino, G.] Gran Sasso Sci Inst, Viale Francesco Crispi 7, Laquila, Italy. [Nagataki, S.] RIKEN, Wako, Saitama, Japan. [Nardini, F.] Keele Univ, Keele ST5 5BG, Staffs, England. [Nattila, J.; Tsygankov, S.] Tuorla Observ, Vaisalantie 20, Piikkio 21500, Finland. [Nenonen, S.] Oxford Instruments Analyt Oy, Tarvonsalmenkatu 17, Espoo, Finland. [Nucita, A.] Univ Lecce, Piazza Tancredi N7, I-73100 Lecce, Italy. [Odaka, H.] ISAS JAXA, Chuo Ku, 3-1-1 Yoshinodai, Sagamihara, Kanagawa 2525210, Japan. [Olmi, B.; Pili, A. G.] Univ Florence, Piazza San Marco 4, I-50121 Florence, Italy. [Omodei, N.] Kipac, 2575 Sand Hill Rd,M-S 29, Menlo Pk, CA 94025 USA. [Pohl, M.] Univ Geneva, DPNC, Quai Ernest Ansermet 30, CH-1205 Geneva, Switzerland. [Papadakis, I] Univ Crete, Phys Dept, GR-71003 Iraklion, Greece. [Paragi, Z.] Joint Inst VLBI Europe JIVE, Postbus 2, NL-7090 AA Dwingeloo, Netherlands. [Pascal, P.] Observ Midi Pyrenees, 14 Ave Edouard Belim, F-31400 Toulouse, France. [Paul, B.] Raman Res Inst, C V Raman Ave, Sadashivanagar 560080, India. [Postnov, K.] Moscow MV Lomonosov State Univ, Sternberg Astron Inst, Moscow 119992, Russia. [Reig, P.] Fdn Res & Technol Hellas, Leof Plastira 100, Iraklion 70013, Greece. [Reinsch, K.] Georg August Univ Goettingen, Inst Astrophys, Friedrich Hund Pl 1, D-37077 Gottingen, Germany. [Reiprich, T.] Argelander Inst Astron, Auf Hugel 71, D-53121 Bonn, Germany. [Rossi, M. E.] Leiden Observ, Niels Bohrweg 2, NL-2333 CA Leiden, Netherlands. [Rosswog, S.] Stockholm Univ, Univ Vagen 10, S-11418 Stockholm, Sweden. [Sala, G.] Univ Politecn Cataluna, Campus Nord,Calle Jordi Girona 1-3, Barcelona 08034, Spain. [Savolainen, T.] Aalto Univ, Metsahovi Radio Observ, POB 13000, FI-00076 Aalto, Finland. [Schawinski, K.] Swiss Fed Inst Technol, Wolfgang Pauli Str 27, CH-8093 Zurich, Switzerland. [Schwope, A.] Leibniz Inst Astrophys Potsdam, An Sternwarte 16, D-14482 Potsdam, Germany. [Sharon, M.] Univ Alberta, Edmonton, AB T6G 2E9, Canada. [Shaw, A.] Univ Southampton, Southampton SO17 1BJ, Hants, England. [Shearer, A.] Natl Univ Ireland Galway, Univ Rd, Galway, Ireland. [Shih, I. -C; Vincent, F.; Zech, A.] Observ Paris, 61 Ave Observ, F-75014 Paris, France. [Stamerra, A.; Zanni, C.] INAF OA Torino, I-10024 Turin, Italy. [Stappers, B.] Univ Manchester, Booth St West, Manchester M15 6PB, Lancs, England. [Starrfield, S.] Arizona State Univ Tempe, Sch Earth & Space Explorat, POB 871404, Tempe, AZ 85287 USA. [Stawarz, L.] Jagiellonian Univ, Astron Observ, Ft 38 Skala,Orla 171, PL-30244 Krakow, Poland. [Stergioulas, N.] Aristotle Univ Thessaloniki, Thessaloniki 54124, Greece. [Slowikowska, A.] Janusz Gil Inst Astron, Ul Szafrana 2, PL-65516 Zielona Gora, Poland. [Tiengo, A.] Ist Univ Super Pavia, IUSS, Palazzo Broletto,Piazza Vittoria 15, I-27100 Pavia, Italy. [Tombesi, F.] Univ Maryland, Dept Astron, College Pk, MD 20742 USA. [Tomsick, J.] Univ Calif Berkeley, Space Sci Lab, 7 Gauss Way, Berkeley, CA 94720 USA. [Tong, H.] Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1 St, Urumqi 830011, Xinjiang, Peoples R China. [Torok, G.] Silesian Univ Opava, Na Rybnicku 626-1, Opava 74601, Czech Republic. [Trimble, V] Univ Calif Irvine, Phys Astron Dept, Phys 4575, Irvine, CA 92697 USA. [Turriziani, S.] Univ Roma Tor Vergata, Via Ric Sci 1, I-00133 Rome, Italy. [Varniere, P.] Univ Paris Diderot, AstroParticule & Cosmol, APC, CNRS,UMR 7164,N2P3, F-75205 Paris 13, France. [Wang, Z.] Tongji Univ, Shanghai 200092, Peoples R China. [Wheeler, J. C.] Univ Texas Austin, Dept Astron, 2515 Speedway,Stop C1400, Austin, TX 78712 USA. [Yu, W.; Yuan, F.] Shanghai Astron Observ, 80 Nandan Rd, Shanghai 200030, Peoples R China. [Zanin, R.] Tech Univ Darmstadt, Inst Kernphys, D-64289 Darmstadt, Germany. [Zhang, H.] Los Alamos Natl Lab, Theoret Div, Los Alamos, NM 87545 USA. RP Soffitta, P (reprint author), IAPS INAF, Via Fosso del Cavaliere 100, I-00133 Rome, Italy. RI Bykov, Andrei/E-3131-2014; Miniutti, Giovanni/L-2721-2014; Karas, Vladimir/C-1559-2013; Horak, Jiri/G-9015-2014; Svoboda, Jiri/G-9045-2014; Dovciak, Michal/F-4258-2014; Marin, Frederic/A-3737-2015; OI Poutanen, Juri/0000-0002-0983-0049; Blasi, Pasquale/0000-0003-2480-599X; Miniutti, Giovanni/0000-0003-0707-4531; Karas, Vladimir/0000-0002-5760-0459; Dovciak, Michal/0000-0003-0079-1239; de Martino, Domitilla/0000-0002-5069-4202; Gendre, Bruce/0000-0002-9077-2025; orienti, monica/0000-0003-4470-7094; Del Zanna, Luca/0000-0001-5200-882X; Angelakis, Emmanouil/0000-0001-7327-5441 NR 25 TC 1 Z9 1 U1 12 U2 12 PU SPIE-INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA SN 0277-786X BN 978-1-5106-0189-5; 978-1-5106-0190-1 J9 PROC SPIE PY 2016 VL 9905 AR UNSP 990515 DI 10.1117/12.2233046 PN 1 PG 20 WC Instruments & Instrumentation; Optics SC Instruments & Instrumentation; Optics GA BG2WP UT WOS:000387731500030 ER PT S AU Takahashi, T Kokubun, M Mitsuda, K Kelley, R Ohashi, T Aharonian, F Akamatsu, H Akimoto, F Allen, S Anabuki, N Angelini, L Arnaud, K Asai, M Audard, M Awaki, H Axelsson, M Azzarello, P Baluta, C Bamba, A Bando, N Bautz, M Bialas, T Blandford, R Boyce, K Brenneman, L Brown, G Bulbul, E Cackett, E Canavan, E Chernyakova, M Chiao, M Coppi, P Costantini, E de Plaa, J den Herder, JW DiPirro, M Done, C Dotani, T Doty, J Ebisawa, K Eckart, M Enoto, T Ezoe, Y Fabian, A Ferrigno, C Foster, A Fujimoto, R Fukazawa, Y Furuzawa, A Galeazzi, M Gallo, L Gandhi, P Gilmore, K Giustini, M Goldwurm, A Gu, LY Guainazzi, M Haas, D Haba, Y Hagino, K Hamaguchi, K Harayama, A Harrus, I Hatsukade, I Hayashi, T Hayashi, K Hayashida, K Hiraga, J Hirose, K Hornschemeier, A Hoshino, A Hughes, J Ichinohe, Y Iizuka, R Inoue, Y Inoue, H Ishibashi, K Ishida, M Ishikawa, K Ishimura, K Ishisaki, Y Itoh, M Iwata, N Iyomoto, N Jewell, C Kaastra, J Kallman, T Kamae, T Kara, E Kataoka, J Katsuda, S Katsuta, J Kawaharada, M Kawai, N Kawano, T Kawasaki, S Khangulyan, D Kilbourne, C Kimball, M King, A Kitaguchi, T Kitamoto, S Kitayama, T Kohmura, T Kosaka, T Koujelev, A Koyama, K Koyama, S Kretschmar, P Krimm, H Kubota, A Kunieda, H Laurent, P Lebrun, F Lee, SH Leutenegger, M Limousin, O Loewenstein, M Long, K Lumb, D Madejski, G Maeda, Y Maier, D Makishima, K Markevitch, M Masters, C Matsumoto, H Matsushita, K McCammon, D Mcguinness, D McNamara, B Mehdipour, M Miko, J Miller, J Miller, E Mineshige, S Minesugi, K Mitsuishi, I Miyazawa, T Mizuno, T Mori, K Mori, H Moroso, F Moseley, H Muench, T Mukai, K Murakami, H Murakami, T Mushotzky, R Nagano, H Nagino, R Nakagawa, T Nakajima, H Nakamori, T Nakano, T Nakashima, S Nakazawa, K Namba, Y Natsukari, C Nishioka, Y Nobukawa, M Nobukawa, K Noda, H Nomachi, M O' Dell, S Odaka, H Ogawa, H Ogawa, M Ogi, K Ohno, M Ohta, M Okajima, T Okamoto, A Okazaki, T Ota, N Ozaki, M Paerels, F Paltani, S Parmar, A Petre, R Pinto, C Pohl, M Pontius, J Porter, FS Pottschmidt, K Ramsey, B Reynolds, C Russell, H Safi-Harb, S Saito, S Sakai, S Sakai, K Sameshima, H Sasaki, T Sato, G Sato, Y Sato, K Sato, R Sawada, M Schartel, N Serlemitsos, P Seta, H Shibano, Y Shida, M Shidatsu, M Shimada, T Shinozaki, K Shirron, P Simionescu, A Simmons, C Smith, R Sneiderman, G Soong, Y Stawarz, L Sugawara, Y Sugita, H Sugita, S Szymkowiak, A Tajima, H Takahashi, H Takeda, S Takei, Y Tamagawa, T Tamura, T Tamura, K Tanaka, T Tanaka, Y Tanaka, Y Tashiro, M Tawara, Y Terada, Y Terashima, Y Tombesi, F Tomida, H Tsuboi, Y Tsujimoto, M Tsunemi, H Tsuru, T Uchida, H Uchiyama, Y Uchiyama, H Ueda, Y Ueda, S Ueno, S Uno, S Urry, M Ursino, E de Vries, C Wada, A Watanabe, S Watanabe, T Werner, N Wik, D Wilkins, D Williams, B Yamada, T Yamada, S Yamaguchi, H Yamaoka, K Yamasaki, N Yamauchi, M Yamauchi, S Yaqoob, T Yatsu, Y Yonetoku, D Yoshida, A Yuasa, T Zhuravleva, I Zoghbi, A AF Takahashi, Tadayuki Kokubun, Motohide Mitsuda, Kazuhisa Kelley, Richard Ohashi, Takaya Aharonian, Felix Akamatsu, Hiroki Akimoto, Fumie Allen, Steve Anabuki, Naohisa Angelini, Lorella Arnaud, Keith Asai, Makoto Audard, Marc Awaki, Hisamitsu Axelsson, Magnus Azzarello, Philipp Baluta, Chris Bamba, Aya Bando, Nobutaka Bautz, Marshall Bialas, Thomas Blandford, Roger Boyce, Kevin Brenneman, Laura Brown, Greg Bulbul, Esra Cackett, Edward Canavan, Edgar Chernyakova, Maria Chiao, Meng Coppi, Paolo Costantini, Elisa de Plaa, Jelle den Herder, Jan-Willem DiPirro, Michael Done, Chris Dotani, Tadayasu Doty, John Ebisawa, Ken Eckart, Megan Enoto, Teruaki Ezoe, Yuichiro Fabian, Andrew Ferrigno, Carlo Foster, Adam Fujimoto, Ryuichi Fukazawa, Yasushi Furuzawa, Akihiro Galeazzi, Massimiliano Gallo, Luigi Gandhi, Poshak Gilmore, Kirk Giustini, Margherita Goldwurm, Andrea Gu, Liyi Guainazzi, Matteo Haas, Daniel Haba, Yoshito Hagino, Kouichi Hamaguchi, Kenji Harayama, Atsushi Harrus, Ilana Hatsukade, Isamu Hayashi, Takayuki Hayashi, Katsuhiro Hayashida, Kiyoshi Hiraga, Junko Hirose, Kazuyuki Hornschemeier, Ann Hoshino, Akio Hughes, John Ichinohe, Yuto Iizuka, Ryo Inoue, Yoshiyuki Inoue, Hajime Ishibashi, Kazunori Ishida, Manabu Ishikawa, Kumi Ishimura, Kosei Ishisaki, Yoshitaka Itoh, Masayuki Iwata, Naoko Iyomoto, Naoko Jewell, Chris Kaastra, Jelle Kallman, Timothy Kamae, Tuneyoshi Kara, Erin Kataoka, Jun Katsuda, Satoru Katsuta, Junichiro Kawaharada, Madoka Kawai, Nobuyuki Kawano, Taro Kawasaki, Shigeo Khangulyan, Dmitry Kilbourne, Caroline Kimball, Mark King, Ashley Kitaguchi, Takao Kitamoto, Shunji Kitayama, Tetsu Kohmura, Takayoshi Kosaka, Tatsuro Koujelev, Alex Koyama, Katsuji Koyama, Shu Kretschmar, Peter Krimm, Hans Kubota, Aya Kunieda, Hideyo Laurent, Philippe Lebrun, Francois Lee, Shiu-Hang Leutenegger, Maurice Limousin, Olivier Loewenstein, Michael Long, Knox Lumb, David Madejski, Grzegorz Maeda, Yoshitomo Maier, Daniel Makishima, Kazuo Markevitch, Maxim Masters, Candace Matsumoto, Hironori Matsushita, Kyoko McCammon, Dan Mcguinness, Daniel McNamara, Brian Mehdipour, Missagh Miko, Joseph Miller, Jon Miller, Eric Mineshige, Shin Minesugi, Kenji Mitsuishi, Ikuyuki Miyazawa, Takuya Mizuno, Tsunefumi Mori, Koji Mori, Hideyuki Moroso, Franco Moseley, Harvey Muench, Theodore Mukai, Koji Murakami, Hiroshi Murakami, Toshio Mushotzky, Richard Nagano, Housei Nagino, Ryo Nakagawa, Takao Nakajima, Hiroshi Nakamori, Takeshi Nakano, Toshio Nakashima, Shinya Nakazawa, Kazuhiro Namba, Yoshiharu Natsukari, Chikara Nishioka, Yusuke Nobukawa, Masayoshi Nobukawa, Kumiko Noda, Hirofumi Nomachi, Masaharu O' Dell, Steve Odaka, Hirokazu Ogawa, Hiroyuki Ogawa, Mina Ogi, Keiji Ohno, Masanori Ohta, Masayuki Okajima, Takashi Okamoto, Atsushi Okazaki, Tsuyoshi Ota, Naomi Ozaki, Masanobu Paerels, Frits Paltani, Stephane Parmar, Arvind Petre, Robert Pinto, Ciro Pohl, Martin Pontius, James Porter, F. Scott Pottschmidt, Katja Ramsey, Brian Reynolds, Christopher Russell, Helen Safi-Harb, Samar Saito, Shinya Sakai, Shin-ichiro Sakai, Kazuhiro Sameshima, Hiroaki Sasaki, Toru Sato, Goro Sato, Yoichi Sato, Kosuke Sato, Rie Sawada, Makoto Schartel, Norbert Serlemitsos, Peter Seta, Hiromi Shibano, Yasuko Shida, Maki Shidatsu, Megumi Shimada, Takanobu Shinozaki, Keisuke Shirron, Peter Simionescu, Aurora Simmons, Cynthia Smith, Randall Sneiderman, Gary Soong, Yang Stawarz, Lukasz Sugawara, Yasuharu Sugita, Hiroyuki Sugita, Satoshi Szymkowiak, Andrew Tajima, Hiroyasu Takahashi, Hiromitsu Takeda, Shin'ichiro Takei, Yoh Tamagawa, Toru Tamura, Takayuki Tamura, Keisuke Tanaka, Takaaki Tanaka, Yasuo Tanaka, Yasuyuki Tashiro, Makoto Tawara, Yuzuru Terada, Yukikatsu Terashima, Yuichi Tombesi, Francesco Tomida, Hiroshi Tsuboi, Yohko Tsujimoto, Masahiro Tsunemi, Hiroshi Tsuru, Takeshi Uchida, Hiroyuki Uchiyama, Yasunobu Uchiyama, Hideki Ueda, Yoshihiro Ueda, Shutaro Ueno, Shiro Uno, Shin'ichiro Urry, Meg Ursino, Eugenio de Vries, Cor Wada, Atsushi Watanabe, Shin Watanabe, Tomomi Werner, Norbert Wik, Daniel Wilkins, Dan Williams, Brian Yamada, Takahiro Yamada, Shinya Yamaguchi, Hiroya Yamaoka, Kazutaka Yamasaki, Noriko Yamauchi, Makoto Yamauchi, Shigeo Yaqoob, Tahir Yatsu, Yoichi Yonetoku, Daisuke Yoshida, Atsumasa Yuasa, Takayuki Zhuravleva, Irina Zoghbi, Abderahmen BE DenHerder, JWA Takahashi, T Bautz, M TI The ASTRO-H (Hitomi) X-ray Astronomy Satellite SO SPACE TELESCOPES AND INSTRUMENTATION 2016: ULTRAVIOLET TO GAMMA RAY SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Space Telescopes and Instrumentation - Ultraviolet to Gamma Ray CY JUN 26-JUL 01, 2016 CL Edinburgh, SCOTLAND SP SPIE DE X-ray; Hard X-ray; Gamma-ray; X-ray Astronomy; Gamma-ray Astronomy; microcalorimeter ID ONBOARD; SUZAKU; G21.5-0.9; MISSION; NUSTAR AB The Hitomi (ASTRO-H) mission is the sixth Japanese X-ray astronomy satellite developed by a large international collaboration, including Japan, USA, Canada, and Europe. The mission aimed to provide the highest energy resolution ever achieved at E > 2 keV, using a microcalorimeter instrument, and to cover a wide energy range spanning four decades in energy from soft X-rays to gamma-rays. After a successful launch on 2016 February 17, the spacecraft lost its function on 2016 March 26, but the commissioning phase for about a month provided valuable information on the on-board instruments and the spacecraft system, including astrophysical results obtained from first light observations. The paper describes the Hitomi (ASTRO-H) mission, its capabilities, the initial operation, and the instruments/spacecraft performances confirmed during the commissioning operations for about a month. C1 [Takahashi, Tadayuki; Kokubun, Motohide; Mitsuda, Kazuhisa; Baluta, Chris; Bando, Nobutaka; Dotani, Tadayasu; Ebisawa, Ken; Guainazzi, Matteo; Hagino, Kouichi; Harayama, Atsushi; Hayashi, Katsuhiro; Hirose, Kazuyuki; Iizuka, Ryo; Inoue, Yoshiyuki; Inoue, Hajime; Ishida, Manabu; Ishimura, Kosei; Iwata, Naoko; Kawano, Taro; Kawasaki, Shigeo; Koyama, Shu; Lee, Shiu-Hang; Maeda, Yoshitomo; Minesugi, Kenji; Nakagawa, Takao; Nakashima, Shinya; Natsukari, Chikara; Odaka, Hirokazu; Ogawa, Hiroyuki; Ogawa, Mina; Ohta, Masayuki; Okazaki, Tsuyoshi; Ozaki, Masanobu; Sakai, Shin-ichiro; Sameshima, Hiroaki; Sato, Goro; Sato, Rie; Shibano, Yasuko; Shida, Maki; Shimada, Takanobu; Simionescu, Aurora; Takei, Yoh; Tamura, Takayuki; Tanaka, Yasuo; Tomida, Hiroshi; Tsujimoto, Masahiro; Ueda, Shutaro; Ueno, Shiro; Wada, Atsushi; Watanabe, Shin; Yamada, Takahiro; Yamasaki, Noriko] Japan Aerosp Explorat Agcy JAXA, ISAS, Kanagawa 2525210, Japan. [Kelley, Richard; Angelini, Lorella; Bialas, Thomas; Boyce, Kevin; Canavan, Edgar; Chiao, Meng; DiPirro, Michael; Eckart, Megan; Hamaguchi, Kenji; Harrus, Ilana; Hornschemeier, Ann; Kallman, Timothy; Kilbourne, Caroline; Kimball, Mark; Krimm, Hans; Leutenegger, Maurice; Markevitch, Maxim; Masters, Candace; Mcguinness, Daniel; Miko, Joseph; Mori, Hideyuki; Moseley, Harvey; Muench, Theodore; Mukai, Koji; Okajima, Takashi; Petre, Robert; Pontius, James; Porter, F. Scott; Pottschmidt, Katja; Sakai, Kazuhiro; Serlemitsos, Peter; Shirron, Peter; Simmons, Cynthia; Sneiderman, Gary; Soong, Yang; Tombesi, Francesco; Watanabe, Tomomi; Williams, Brian; Yamaguchi, Hiroya; Yaqoob, Tahir] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA. [Ohashi, Takaya; Axelsson, Magnus; Ezoe, Yuichiro; Ichinohe, Yuto; Ishisaki, Yoshitaka; Seta, Hiromi; Yamada, Shinya] Tokyo Metropolitan Univ, Dept Phys, Tokyo 1920397, Japan. [Aharonian, Felix; Chernyakova, Maria] Dublin Inst Adv Studies, Astron & Astrophys Sect, Dublin 2, Ireland. [Akamatsu, Hiroki; Costantini, Elisa; de Plaa, Jelle; den Herder, Jan-Willem; Giustini, Margherita; Gu, Liyi; Haas, Daniel; Kaastra, Jelle; Mehdipour, Missagh; de Vries, Cor] SRON Netherlands Inst Space Res, Utrecht, Netherlands. [Akimoto, Fumie; Furuzawa, Akihiro; Hayashi, Takayuki; Ishibashi, Kazunori; Kunieda, Hideyo; Mitsuishi, Ikuyuki; Miyazawa, Takuya; Nagano, Housei; Tajima, Hiroyasu; Tamura, Keisuke; Tawara, Yuzuru; Yamaoka, Kazutaka] Nagoya Univ, Dept Phys, Nagoya, Aichi 4648602, Japan. [Allen, Steve; Asai, Makoto; Blandford, Roger; Gilmore, Kirk; Kamae, Tuneyoshi; King, Ashley; Madejski, Grzegorz; Werner, Norbert; Zhuravleva, Irina] Stanford Univ, Kavli Inst Particle Astrophys & Cosmol, Stanford, CA 94305 USA. [Anabuki, Naohisa; Hayashida, Kiyoshi; Nagino, Ryo; Nakajima, Hiroshi; Tsunemi, Hiroshi] Osaka Univ, Dept Earth & Space Sci, Osaka 5600043, Japan. [Arnaud, Keith; Kara, Erin; Loewenstein, Michael; Mushotzky, Richard; Reynolds, Christopher] Univ Maryland, Dept Astron, College Pk, MD 20742 USA. [Audard, Marc; Azzarello, Philipp; Ferrigno, Carlo; Paltani, Stephane; Pohl, Martin] Univ Genoa, Dept Astron, CH-1290 Versoix, Switzerland. [Awaki, Hisamitsu; Ogi, Keiji; Terashima, Yuichi] Ehime Univ, Dept Phys, Matsuyama, Ehime 7908577, Japan. [Bamba, Aya; Nakazawa, Kazuhiro; Ueda, Yoshihiro] Univ Tokyo, Dept Phys, Tokyo 1130033, Japan. [Bautz, Marshall; Bulbul, Esra; Miller, Eric] MIT, Kavli Inst Astrophys & Space Res, 77 Massachusetts Ave, Cambridge, MA 02139 USA. [Brenneman, Laura; Foster, Adam; Smith, Randall] Harvard Smithsonian Ctr Astrophys, 60 Garden St, Cambridge, MA 02138 USA. [Brown, Greg] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Cackett, Edward; Fabian, Andrew; Pinto, Ciro; Russell, Helen] Univ Cambridge, Inst Astron, Cambridge CB3 OHA, England. [Coppi, Paolo; Szymkowiak, Andrew; Urry, Meg] Yale Univ, Yale Ctr Astron & Astrophys, New Haven, CT 06520 USA. [Done, Chris] Univ Durham, Dept Phys, Durham DH1 3LE, England. [Doty, John] Noqsi Aerosp Ltd, Pine, CO 80470 USA. [Enoto, Teruaki; Mineshige, Shin] Kyoto Univ, Dept Astron, Kyoto 6068502, Japan. [Fujimoto, Ryuichi; Murakami, Toshio; Yonetoku, Daisuke] Kanazawa Univ, Fac Math & Phys, Kanazawa, Ishikawa 9201192, Japan. [Fukazawa, Yasushi; Katsuta, Junichiro; Kitaguchi, Takao; Mizuno, Tsunefumi; Ohno, Masanori; Takahashi, Hiromitsu; Tanaka, Yasuyuki] Hiroshima Univ, Dept Phys Sci, Hiroshima 7398526, Japan. [Galeazzi, Massimiliano; Ursino, Eugenio] Univ Miami, Dept Phys, Coral Gables, FL 33124 USA. [Gallo, Luigi; Wilkins, Dan] St Marys Univ, Dept Phys & Astron, Halifax, NS B3H 3C3, Canada. [Gandhi, Poshak] Univ Southampton, Phys & Astron, Southampton SO17 1BJ, Hants, England. [Goldwurm, Andrea; Laurent, Philippe; Lebrun, Francois; Limousin, Olivier; Maier, Daniel] CEA Saclay, IRFU Serv Astrophys, F-91191 Gif Sur Yvette, France. [Haba, Yoshito] Aichi Univ Educ, Dept Phys & Astron, Kariya, Aichi 4488543, Japan. [Hatsukade, Isamu; Mori, Koji; Nishioka, Yusuke; Yamauchi, Makoto] Miyazaki Univ, Dept Appl Phys & Elect Engn, Miyazaki 8892192, Japan. [Hiraga, Junko] Kwansei Gakuin Univ, Sch Sci & Technol, Dept Phys, Sanda, Hyogo 6691337, Japan. [Hoshino, Akio; Khangulyan, Dmitry; Kitamoto, Shunji; Saito, Shinya; Uchiyama, Yasunobu] Rikkyo Univ, Dept Phys, Tokyo 1718501, Japan. [Hughes, John] Rutgers State Univ, Dept Phys & Astron, Piscataway, NJ 08854 USA. [Wik, Daniel] Johns Hopkins Univ, Dept Phys & Astron, Baltimore, MD 21218 USA. [Ishikawa, Kumi; Tamagawa, Toru; Yuasa, Takayuki] RIKEN Nishina Ctr, Saitama 3510198, Japan. [Itoh, Masayuki] Kobe Univ, Grad Sch Human Dev & Environm, Kobe, Hyogo 6578501, Japan. [Iyomoto, Naoko] Kyushu Univ, Fukuoka 8190395, Japan. [Jewell, Chris; Kretschmar, Peter; Lumb, David; Parmar, Arvind; Schartel, Norbert] ESA, European Space Res & Technol Ctr ESTEC, NL-2200 AG Noordwijk, Netherlands. [Kataoka, Jun] Waseda Univ, Res Inst Sci & Engn, Tokyo 1698555, Japan. [Katsuda, Satoru; Sugawara, Yasuharu; Tsuboi, Yohko] Chuo Univ, Dept Phys, Tokyo 1128551, Japan. [Kawaharada, Madoka; Okamoto, Atsushi; Sato, Yoichi; Shinozaki, Keisuke; Sugita, Hiroyuki] Japan Aerosp Explorat Agcy JAXA, Tsukuba Space Ctr TKSC, Tsukuba, Ibaraki 3058505, Japan. [Kawai, Nobuyuki; Sugita, Satoshi; Yatsu, Yoichi] Tokyo Inst Technol, Dept Phys, Tokyo 1528551, Japan. [Kitayama, Tetsu] Toho Univ, Dept Phys, Chiba 2748510, Japan. [Kohmura, Takayoshi] Tokyo Univ Sci, Dept Phys, Chiba 2788510, Japan. [Kosaka, Tatsuro] Kochi Univ Technol, Sch Syst Engn, Kochi 7828502, Japan. [Koujelev, Alex; Moroso, Franco] Canadian Space Agcy, John H Chapman Space Ctr, Space Explorat Dev Space Explorat, Longueuil, PQ J3Y 8Y9, Canada. [Koyama, Katsuji; Tanaka, Takaaki; Tsuru, Takeshi; Uchida, Hiroyuki] Kyoto Univ, Dept Phys, Kyoto 6068502, Japan. [Kubota, Aya] Shibaura Inst Technol, Dept Elect Informat Syst, Saitama 3378570, Japan. [Long, Knox] Space Telescope Sci Inst, 3700 San Martin Dr, Baltimore, MD 21218 USA. [Makishima, Kazuo; Shidatsu, Megumi] RIKEN, Saitama 3510198, Japan. [Matsumoto, Hironori] Nagoya Univ, Kobayashi Masukawa Inst, Nagoya, Aichi 4648602, Japan. [Matsushita, Kyoko; Sasaki, Toru; Sato, Kosuke] Tokyo Univ Sci, Dept Phys, Tokyo 1628601, Japan. [McCammon, Dan] Univ Wisconsin, Dept Phys, 1150 Univ Ave, Madison, WI 53706 USA. [McNamara, Brian] Univ Waterloo, Waterloo, ON N2L 3G1, Canada. [Miller, Jon; Zoghbi, Abderahmen] Univ Michigan, Dept Astron, Ann Arbor, MI 48109 USA. [Murakami, Hiroshi] Tohoku Gakuin Univ, Dept Informat Sci, Fac Liberal Arts, Sendai, Miyagi 9813193, Japan. [Nakamori, Takeshi] Yamagata Univ, Fac Sci, Dept Phys, Yamagata 9908560, Japan. [Nakano, Toshio] Univ Tokyo, Res Ctr Early Universe, Tokyo 1130033, Japan. [Namba, Yoshiharu] Chubu Univ, Dept Mech Engn, Kasugai, Aichi 4878501, Japan. [Nobukawa, Masayoshi] Nara Univ Educ, Dept Teacher Training, Nara 6308528, Japan. [Nobukawa, Masayoshi] Nara Univ Educ, Sch Educ, Nara 6308528, Japan. [Noda, Hirofumi] Tohoku Univ, Frontier Res Inst Interdisciplinary Sci, Sendai, Miyagi 9808578, Japan. [Nomachi, Masaharu] Osaka Univ, Nucl Phys Res Ctr, Osaka 5600043, Japan. [O' Dell, Steve; Ramsey, Brian] NASA, Marshall Space Flight Ctr, Huntsville, AL 35812 USA. [Nobukawa, Kumiko; Ota, Naomi; Yamauchi, Shigeo] Nara Womens Univ, Fac Sci, Dept Phys, Nara 6308506, Japan. [Paerels, Frits] Columbia Univ, Dept Astron, New York, NY 10027 USA. [Safi-Harb, Samar] Univ Manitoba, Dept Phys & Astron, Winnipeg, MB R3T 2N2, Canada. [Sawada, Makoto; Yoshida, Atsumasa] Aoyama Gakuin Univ, Dept Phys & Math, Kanagawa 2525258, Japan. [Stawarz, Lukasz] Jagiellonian Univ, Astron Observ, PL-30244 Krakow, Poland. [Takeda, Shin'ichiro] Okinawa Inst Sci & Technol Grad Univ OIST, Adv Med Instrumentat Unit, Okinawa 9040495, Japan. [Tashiro, Makoto; Terada, Yukikatsu] Saitama Univ, Dept Phys, Saitama 3388570, Japan. [Uchiyama, Hideki] Shizuoka Univ, Fac Educ, Sci Educ, Shizuoka 4228529, Japan. [Uno, Shin'ichiro] Nihon Fukushi Univ, Fac Hlth Sci, Handa, Aichi 4750012, Japan. RP Takahashi, T (reprint author), Japan Aerosp Explorat Agcy JAXA, ISAS, Kanagawa 2525210, Japan. OI , kouichi/0000-0003-4235-5304 NR 74 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 978-1-5106-0189-5; 978-1-5106-0190-1 J9 PROC SPIE PY 2016 VL 9905 AR UNSP 99050U DI 10.1117/12.2232379 PN 1 PG 17 WC Instruments & Instrumentation; Optics SC Instruments & Instrumentation; Optics GA BG2WP UT WOS:000387731500019 ER PT S AU Wade, C Barriere, N Tomsick, JA Hanlon, L Boggs, SE Brejnholt, NF Massahi, S von Ballmoos, P AF Wade, Colin Barriere, Nicolas Tomsick, John A. Hanlon, Lorraine Boggs, Steven E. Brejnholt, Nicolai F. Massahi, Sonny von Ballmoos, Peter BE DenHerder, JWA Takahashi, T Bautz, M TI In-depth Calibration of a Laue Lens Prototype Composed of Fe and Al Mosaic Crystals SO SPACE TELESCOPES AND INSTRUMENTATION 2016: ULTRAVIOLET TO GAMMA RAY SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Space Telescopes and Instrumentation - Ultraviolet to Gamma Ray CY JUN 26-JUL 01, 2016 CL Edinburgh, SCOTLAND SP SPIE DE Telescope; Laue lens; Soft Gamma-rays; Crystals; Diffraction; Focusing optics; Technological development ID ABOARD AB The Laue lens is a developing technology for focusing soft gamma-rays, that is based on the principle of Bragg diffraction. A suitable arrangement of diffracting crystals is used to concentrate a set of parallel incoming photons onto a common focal spot. In late 2014, the Laue lens assembly station (LLAS) at UC Berkeley was used to construct a prototype lens segment, consisting of 48 5 x 5mm(2) crystals -36 iron and 12 aluminium. The segment is composed of 8 partial rings, each of which is aligned to diffract an energy between 90 and 130 keV. In December 2015 the prototype was tested and calibrated using the LLAS and results are presented here. The crystal mounting speed, accuracy of crystal position and orientation, and crystal reflectivity are addressed. C1 [Wade, Colin; Hanlon, Lorraine] Univ Coll Dublin, Sch Phys, Dublin 4, Ireland. [Wade, Colin; Barriere, Nicolas; Tomsick, John A.; Boggs, Steven E.; Massahi, Sonny] Univ Calif Berkeley, Space Sci Lab, 7 Gauss Way, Berkeley, CA 94720 USA. [Barriere, Nicolas] Cosine Res BV, JH Oortweg 19, NL-2333 CH Leiden, Netherlands. [Brejnholt, Nicolai F.] Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA 94550 USA. [Massahi, Sonny] Tech Univ Denmark, Natl Space Inst, DK-2800 Lyngby, Denmark. [von Ballmoos, Peter] UMR 5277, Inst Rech Astrophys & Planetol, 9 Ave Colonel Roche, F-31028 Toulouse, France. RP Wade, C (reprint author), Univ Coll Dublin, Sch Phys, Dublin 4, Ireland.; Wade, C; Barriere, N (reprint author), Univ Calif Berkeley, Space Sci Lab, 7 Gauss Way, Berkeley, CA 94720 USA.; Barriere, N (reprint author), Cosine Res BV, JH Oortweg 19, NL-2333 CH Leiden, Netherlands. EM colin.wade@ucdconnect.ie; nbarriere@cosine.nl NR 7 TC 0 Z9 0 U1 0 U2 0 PU SPIE-INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA SN 0277-786X BN 978-1-5106-0189-5; 978-1-5106-0190-1 J9 PROC SPIE PY 2016 VL 9905 AR UNSP 99056P-1 DI 10.1117/12.2234690 PN 1 PG 7 WC Instruments & Instrumentation; Optics SC Instruments & Instrumentation; Optics GA BG2WP UT WOS:000387731500185 ER PT S AU Efimov, V Ignatov, A Troyanchuk, IO Sikolenko, VV Rogalev, A Wilhelm, F Efimova, E Tiutiunnikov, SI Karpinsky, D Kriventsov, V Yakimchuk, E Molodtsov, S Sainctavit, P Prabhakaran, D AF Efimov, V. Ignatov, A. Troyanchuk, I. O. Sikolenko, V. V. Rogalev, A. Wilhelm, F. Efimova, E. Tiutiunnikov, S. I. Karpinsky, D. Kriventsov, V. Yakimchuk, E. Molodtsov, S. Sainctavit, P. Prabhakaran, D. GP IOP TI Co K-edge magnetic circular dichroism across the spin state transition in LaCoO3 single crystal SO 16TH INTERNATIONAL CONFERENCE ON X-RAY ABSORPTION FINE STRUCTURE (XAFS16) SE Journal of Physics Conference Series LA English DT Proceedings Paper CT 16th International Conference on X-ray Absorption Fine Structure (XAFS) CY AUG 23-28, 2015 CL Karlsruhe Inst Technol, Karlsruhe, GERMANY HO Karlsruhe Inst Technol AB We report on Co K-edge x-ray magnetic circular dichroism (XMCD) measurements of LaCoO3 single crystal in temperature range from 5 to 300 K and external magnetic field of 17 T. The response consists of pre-edge (at 7712 eV) and bi-polar peak (up at 7727, down at 7731 eV) with amplitudes, respectively, less than 10(-3) and 10(-2) of the Co K-edge jump. Using the sum rule the orbital magnetic moment of 4p Co is evaluated. Its temperature dependence reaches a maximum of (2.7 +/- 0.9) (x) 10(-3) mu(B) at 120 K, following the trend for the total magnetic moment on the Co obtained from the superconducting quantum interference device measurements. However, on warming from 25 to 120 K, the orbital magnetic moment of the 4p Co doubles while total magnetic moment of Co increases 10 times. First principle calculations are in order to relate the Co K-edge XMCD results to the orbital and spin moment of 3d Co. C1 [Efimov, V.; Sikolenko, V. V.; Efimova, E.; Tiutiunnikov, S. I.] Joint Inst Nucl Res, Dubna 141980, Russia. [Ignatov, A.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Troyanchuk, I. O.; Karpinsky, D.] Sci Pract Mat Res Ctr NAS Belarus, Minsk 220072, Byelarus. [Sikolenko, V. V.] REC Funct Nanomat Immanuel Kant Baltic Fed Univ, Kaliningrad 236041, Russia. [Rogalev, A.; Wilhelm, F.] European Synchrotron Radiat Facil, BP 220, F-38043 Grenoble, France. [Kriventsov, V.; Yakimchuk, E.] Boreskov Inst Catalysis SB RAS, Novosibirsk 630090, Russia. [Molodtsov, S.] European XFEL Gmbh, Albert Einstein Ring 19, D-22761 Hamburg, Germany. [Sainctavit, P.] CNRS, Inst Mineral & Phys Milieux Condenses, F-75012 Paris, France. [Prabhakaran, D.] Univ Oxford, Dept Phys, Oxford OX1 3PU, England. RP Efimov, V (reprint author), Joint Inst Nucl Res, Dubna 141980, Russia. EM efimovvv2006@mail.ru NR 15 TC 0 Z9 0 U1 3 U2 3 PU IOP PUBLISHING LTD PI BRISTOL PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND SN 1742-6588 J9 J PHYS CONF SER PY 2016 VL 712 AR 012111 DI 10.1088/1742-6596/712/1/012111 PG 4 WC Physics, Applied; Physics, Multidisciplinary SC Physics GA BF6LM UT WOS:000383249000112 ER PT S AU Feng, R Kremer, F Sprouster, DJ Mirzaei, S Decoster, S Glover, CJ Medling, SA Russo, SP Ridgway, MC AF Feng, R. Kremer, F. Sprouster, D. J. Mirzaei, S. Decoster, S. Glover, C. J. Medling, S. A. Russo, S. P. Ridgway, M. C. GP IOP TI EXAFS study of the structural properties of In and In plus C implanted Ge SO 16TH INTERNATIONAL CONFERENCE ON X-RAY ABSORPTION FINE STRUCTURE (XAFS16) SE Journal of Physics Conference Series LA English DT Proceedings Paper CT 16th International Conference on X-ray Absorption Fine Structure (XAFS) CY AUG 23-28, 2015 CL Karlsruhe Inst Technol, Karlsruhe, GERMANY HO Karlsruhe Inst Technol ID GERMANIUM AB The structural configurations of In implanted Ge have been studied via x-ray absorption spectroscopy with and without the codoping of C. In the case of In singly implanted Ge, while the In atoms occupy an substitutional site in Ge (InGe4) at low In concentration (<= 0.2 at. %), they precipitate into a metallic phase (In metal) and form complexes composed of one vacancy and three Ge atoms (InVGe3) at concentration >= 0.6 at. %. This behaviour can be suppressed by the addition of C leading to In-C pairing to form InCGe3 complexes. This cluster enables In atoms to recover a four-fold coordinated structure and has the potential to improve the electrical activation of In atoms in Ge. C1 [Feng, R.; Kremer, F.; Mirzaei, S.; Medling, S. A.; Ridgway, M. C.] Australian Natl Univ, Res Sch Phys & Engn, Dept Elect Mat Engn, Canberra, ACT 0200, Australia. [Sprouster, D. J.] Brookhaven Natl Lab, Nucl Sci & Technol Dept, Upton, NY 11973 USA. [Decoster, S.] Katholieke Univ Leuven, Inst Kern Stralingsfys, B-3001 Leuven, Belgium. [Glover, C. J.] Australian Synchrotron, 800 Blackburn Rd, Clayton, Vic, Australia. [Russo, S. P.] RMIT Univ, Sch Appl Sci, Appl Phys, Melbourne, Vic 3001, Australia. RP Feng, R (reprint author), Australian Natl Univ, Res Sch Phys & Engn, Dept Elect Mat Engn, Canberra, ACT 0200, Australia. EM ruixing.feng@anu.edu.au RI Sprouster, David/F-2280-2010; OI Sprouster, David/0000-0002-2689-0721; Russo, Salvy/0000-0003-3589-3040 NR 10 TC 0 Z9 0 U1 1 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 2016 VL 712 AR 012102 DI 10.1088/1742-6596/712/1/012102 PG 4 WC Physics, Applied; Physics, Multidisciplinary SC Physics GA BF6LM UT WOS:000383249000103 ER PT S AU Sikolenko, VV Troyanchuk, IO Efimov, VV Efimova, EA Tiutiunnikov, SI Karpinsky, DV Pascarelli, S Zaharko, O Ignatov, A Aquilanti, D Selutin, AG Shmakov, AN Prabhakaran, D AF Sikolenko, V. V. Troyanchuk, I. O. Efimov, V. V. Efimova, E. A. Tiutiunnikov, S. I. Karpinsky, D. V. Pascarelli, S. Zaharko, O. Ignatov, A. Aquilanti, D. Selutin, A. G. Shmakov, A. N. Prabhakaran, D. GP IOP TI EXAFS and X-ray diffraction study of LaCoO3 across the spin-state transition SO 16TH INTERNATIONAL CONFERENCE ON X-RAY ABSORPTION FINE STRUCTURE (XAFS16) SE Journal of Physics Conference Series LA English DT Proceedings Paper CT 16th International Conference on X-ray Absorption Fine Structure (XAFS) CY AUG 23-28, 2015 CL Karlsruhe Inst Technol, Karlsruhe, GERMANY HO Karlsruhe Inst Technol AB A combined high-resolution Co K-edge extended x-ray absorption fine structure (EXAFS) and high-resolution X-ray powder diffraction (XRD) study has been performed to clarify the detail of anomalous behavior of temperature-dependent magnetic susceptibility curve on the LaCoO3 across the spin-state (similar to 120 K) transition. According to XRD analysis, the Debye-Waller factor of Co-O bond exhibit rapid growth below 20 K whereas the temperature dependence of the average Co-O bond length shows linear behavior from 10 K to 400 K. The EXAFS data show an anomalous decrease of the Co-O bond lengths with respect to those obtained by XRD. No local distortion of CoO6 octahedral as temperature increases up to 400 K has been detected. C1 [Sikolenko, V. V.; Efimov, V. V.; Efimova, E. A.; Tiutiunnikov, S. I.] Joint Inst Nucl Res, Dubna 141980, Russia. [Troyanchuk, I. O.; Karpinsky, D. V.] Sci Pract Mat Res Ctr NAS Belarus, Minsk 220072, Byelarus. [Pascarelli, S.] European Synchrotron Radiat Facil, BP 220, F-38043 Grenoble, France. [Zaharko, O.] Paul Scherrer Inst, Lab Neutron Scattering & Imaging, CH-5232 Villigen, Switzerland. [Ignatov, A.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Aquilanti, D.] Elettra Synchrotron Trieste, I-34149 Trieste, Italy. [Selutin, A. G.; Shmakov, A. N.] Boreskov Inst Catalysis SB RAS, Novosibirsk 630090, Russia. [Prabhakaran, D.] Univ Oxford, Dept Phys, Oxford OX1 3PU, England. [Sikolenko, V. V.] Immanuel Kant Baltic Fed Univ, REC Funct Nanomat, Kaliningrad 236041, Russia. RP Sikolenko, VV (reprint author), Joint Inst Nucl Res, Dubna 141980, Russia.; Sikolenko, VV (reprint author), Immanuel Kant Baltic Fed Univ, REC Funct Nanomat, Kaliningrad 236041, Russia. EM vadim.sikolenko@jinr.ru NR 19 TC 1 Z9 1 U1 6 U2 6 PU IOP PUBLISHING LTD PI BRISTOL PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND SN 1742-6588 J9 J PHYS CONF SER PY 2016 VL 712 AR 012118 DI 10.1088/1742-6596/712/1/012118 PG 4 WC Physics, Applied; Physics, Multidisciplinary SC Physics GA BF6LM UT WOS:000383249000119 ER PT S AU Sun, CJ Park, CI Jin, ZL Hwang, IH Heald, SM Han, SW AF Sun, Chengjun Park, Chang-In Jin, Zhenlan Hwang, In-Hui Heald, S. M. Han, Sang-Wook GP IOP TI Polarization-dependent DANES study on vertically-aligned ZnO nanorods SO 16TH INTERNATIONAL CONFERENCE ON X-RAY ABSORPTION FINE STRUCTURE (XAFS16) SE Journal of Physics Conference Series LA English DT Proceedings Paper CT 16th International Conference on X-ray Absorption Fine Structure (XAFS) CY AUG 23-28, 2015 CL Karlsruhe Inst Technol, Karlsruhe, GERMANY HO Karlsruhe Inst Technol ID ANOMALOUS FINE-STRUCTURE AB The local structural and local density of states of vertically-aligned ZnO nanorods are examined by using polarization-dependent diffraction anomalous near edge structure (DANES) measurements from c-oriented ZnO nanorods at the Zn K edge at the geometry of the incident x-ray electric field parallel and perpendicular to the x-ray momentum transfer direction. Orientation-dependent local structures determined by DANES are comparable with polarization-dependent EXAFS results. Unlike other techniques, polarization-dependent DANES can uniquely describe the orientation-dependent local structural properties and the local density of states of a selected element in selected-phased crystals of compounds or mixed-phased structures. C1 [Sun, Chengjun; Heald, S. M.] Argonne Natl Lab, Adv Photon Source, Xray Sci Div, Argonne, IL 60440 USA. [Park, Chang-In; Jin, Zhenlan; Hwang, In-Hui; Han, Sang-Wook] Jeonbuk Chonbuk Natl Univ, Dept Phys Educ, Jeonju 54896, South Korea. [Park, Chang-In; Jin, Zhenlan; Hwang, In-Hui; Han, Sang-Wook] Jeonbuk Chonbuk Natl Univ, Inst Fus Sci, Jeonju 54896, South Korea. RP Han, SW (reprint author), Jeonbuk Chonbuk Natl Univ, Dept Phys Educ, Jeonju 54896, South Korea.; Han, SW (reprint author), Jeonbuk Chonbuk Natl Univ, Inst Fus Sci, Jeonju 54896, South Korea. EM shan@jbnu.ac.kr NR 9 TC 1 Z9 1 U1 0 U2 0 PU IOP PUBLISHING LTD PI BRISTOL PA DIRAC HOUSE, TEMPLE BACK, BRISTOL BS1 6BE, ENGLAND SN 1742-6588 J9 J PHYS CONF SER PY 2016 VL 712 AR 012123 DI 10.1088/1742-6596/712/1/012123 PG 5 WC Physics, Applied; Physics, Multidisciplinary SC Physics GA BF6LM UT WOS:000383249000124 ER PT J AU Mohite, AD Nie, WY Blancon, JC Tsai, H Gupta, G AF Mohite, Aditya D. Nie, Wanyi Blancon, Jean Christophe Tsai, Hsinhan Gupta, Gautam GP IEEE TI Optoelectronic properties and photo-physics of large grain hybrid perovskites SO 2016 23RD INTERNATIONAL WORKSHOP ON ACTIVE-MATRIX FLATPANEL DISPLAYS AND DEVICES (AM-FPD) LA English DT Proceedings Paper CT 23rd International Workshop on Active-Matrix Flatpanel Displays and Devices (AM-FPD) - TFT Technologies and FPD Materials CY JUL 06-08, 2016 CL Ryukoku Univ, Kyoto, JAPAN SP Int Soc Functional Thin Film Materials & Devices, Japan Soc Appl Phys, Electrochem Soc, Elect & Photon Div, Electrochem Soc, Japan Sect, Inst Elect & Elect Engineers Electron Devices Soc, Inst Elect Informat & Commun Engineers, Inst Image Informat & Televis Engineers, Inst Elect Engineers Japan, Chem Soc Japan, Japanese Liquid Crystal Soc HO Ryukoku Univ ID SOLAR-CELLS; HALIDE PEROVSKITES; DEPOSITION C1 [Mohite, Aditya D.; Nie, Wanyi; Blancon, Jean Christophe; Tsai, Hsinhan; Gupta, Gautam] Los Alamos Natl Lab, Mat Phys & Applicat, Los Alamos, NM 87545 USA. RP Mohite, AD (reprint author), Los Alamos Natl Lab, Mat Phys & Applicat, Los Alamos, NM 87545 USA. EM amohit@lanl.gov NR 16 TC 0 Z9 0 U1 3 U2 3 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-4-9908753-1-2 PY 2016 BP 49 EP 51 PG 3 WC Engineering, Electrical & Electronic; Optics; Imaging Science & Photographic Technology SC Engineering; Optics; Imaging Science & Photographic Technology GA BG5OK UT WOS:000389600900015 ER PT J AU Dai, HW Li, C Zhou, HY Gupta, S Kartsaklis, C Mantor, M AF Dai, Hongwen Li, Chao Zhou, Huiyang Gupta, Saurabh Kartsaklis, Christos Mantor, Mike GP ACM TI A Model-Driven Approach to Warp/Thread-Block Level GPU Cache Bypassing SO 2016 ACM/EDAC/IEEE DESIGN AUTOMATION CONFERENCE (DAC) LA English DT Proceedings Paper CT 53rd ACM/EDAC/IEEE Design Automation Conference (DAC) CY JUN 05-09, 2016 CL Austin, TX SP ACM, EDAC, IEEE AB The high amount of memory requests from massive threads may easily cause cache contention and cache-miss-related resource congestion on GPUs. This paper proposes a simple yet effective performance model to estimate the impact of cache contention and resource congestion as a function of the number of warps/thread blocks (TBs) to bypass the cache. Then we design a hardware-based dynamic warp/thread-block level GPU cache bypassing scheme, which achieves 1.68x speedup on average on a set of memory-intensive benchmarks over the baseline. Compared to prior works, our scheme achieves 21.6% performance improvement over SWL-best [29] and 11.9% over CBWT-best [4] on average. C1 [Dai, Hongwen; Li, Chao; Zhou, Huiyang] North Carolina State Univ, Raleigh, NC 27695 USA. [Gupta, Saurabh; Kartsaklis, Christos] Oak Ridge Natl Lab, Oak Ridge, TN USA. [Mantor, Mike] Adv Micro Devices Inc, Orlando, FL USA. RP Dai, HW (reprint author), North Carolina State Univ, Raleigh, NC 27695 USA. EM hdai3@ncsu.edu; cli17@ncsu.edu; hzhou@ncsu.edu; guptas1@ornl.gov; kartsaklisc@ornl.gov; Michael.Mantor@amd.com NR 33 TC 0 Z9 0 U1 0 U2 0 PU ASSOC COMPUTING MACHINERY PI NEW YORK PA 1515 BROADWAY, NEW YORK, NY 10036-9998 USA PY 2016 DI 10.1145/2897937.2897966 PG 6 WC Computer Science, Hardware & Architecture; Engineering, Electrical & Electronic SC Computer Science; Engineering GA BG6IF UT WOS:000390302500094 ER PT J AU Wang, XH Wang, KZ Wu, S Di, S Yang, K Jin, H AF Wang, Xinhou Wang, Kezhi Wu, Song Di, Sheng Yang, Kun Jin, Hai GP IEEE TI Dynamic Resource Scheduling in Cloud Radio Access Network with Mobile Cloud Computing SO 2016 IEEE/ACM 24TH INTERNATIONAL SYMPOSIUM ON QUALITY OF SERVICE (IWQOS) LA English DT Proceedings Paper CT 24th IEEE/ACM International Symposium on Quality of Service (IWQoS) CY JUN 20-21, 2016 CL Beijing, PEOPLES R CHINA SP IEEE, ACM AB Nowadays, by integrating the cloud radio access network (C-RAN) with the mobile cloud computing (MCC) technology, mobile service provider (MSP) can efficiently handle the increasing mobile traffic and enhance the capabilities of mobile users' devices to provide better quality of service (QoS). But the power consumption has become skyrocketing for MSP as it gravely affects the profit of MSP. Previous work often studied the power consumption in C-RAN and MCC separately while less work had considered the integration of C-RAN with MCC. In this paper, we present a unifying framework for optimizing the power-performance tradeoff of MSP by jointly scheduling network resources in C-RAN and computation resources in MCC to minimize the power consumption of MSP while still guaranteeing the QoS for mobile users. Our objective is to maximize the profit of MSP. To achieve this objective, we first formulate the resource scheduling issue as a stochastic problem and then propose a Resource onlIne sCHeduling (RICH) algorithm using Lyapunov optimization technique to approach a time average profit that is close to the optimum with a diminishing gap (1/V) for MSP while still maintaining strong system stability and low congestion to guarantee the QoS for mobile users. With extensive simulations, we demonstrate that the profit of RICH algorithm is 3.3x (18.4x) higher than that of active (random) algorithm. C1 [Wang, Xinhou; Wu, Song; Jin, Hai] Huazhong Univ Sci & Technol, Sch Comp Sci & Technol, Cluster & Grid Comp Lab, Serv Comp Technol & Syst Lab, Wuhan 430074, Peoples R China. [Wang, Kezhi; Yang, Kun] Univ Essex, Colchester CO4 3SQ, Essex, England. [Di, Sheng] Argonne Natl Lab, Argonne, IL 60439 USA. RP Wu, S; Jin, H (reprint author), Huazhong Univ Sci & Technol, Sch Comp Sci & Technol, Cluster & Grid Comp Lab, Serv Comp Technol & Syst Lab, Wuhan 430074, Peoples R China. EM xwang@hust.edu.cn; kezhi.wang@essex.ac.uk; wusong@hust.edu.cn; sdi1@anl.gov; kunyang@essex.ac.uk; hjin@hust.edu.cn NR 17 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA PY 2016 PG 6 WC Computer Science, Theory & Methods; Engineering, Electrical & Electronic SC Computer Science; Engineering GA BG6AB UT WOS:000389832500043 ER PT S AU Minutoli, M Castellana, VG Tumeo, A Lattuada, M Ferrandi, F AF Minutoli, Marco Castellana, Vito Giovanni Tumeo, Antonino Lattuada, Marco Ferrandi, Fabrizio GP ACM TI Efficient Synthesis of Graph Methods: a Dynamically Scheduled Architecture SO 2016 IEEE/ACM INTERNATIONAL CONFERENCE ON COMPUTER-AIDED DESIGN (ICCAD) SE ICCAD-IEEE ACM International Conference on Computer-Aided Design LA English DT Proceedings Paper CT 35th IEEE/ACM International Conference on Computer-Aided Design (ICCAD) CY NOV 07-10, 2016 CL Austin, TX SP IEEE, ACM, IEEE Circuits & Syst Soc, IEEE Council Elect Design Automat, IEEE Elect Devices Soc, Assoc Comp Machinery, Special Interest Grp Design Automat DE High-Level Synthesis; Dynamic Task Scheduling; SPARQL; Big Data AB RDF databases naturally map to a graph representation and employ languages, such as SPARQL, that implements queries as graph pattern matching routines. Graph methods exhibit an irregular behavior: they present unpredictable, fine-grained data accesses, and are synchronization intensive. Graph data structures expose large amounts of dynamic parallelism, but are difficult to partition without generating load unbalance. In this paper, we present a novel architecture to improve the synthesis of graph methods. Our design addresses the issues of these algorithms with two components: a Dynamic Task Scheduler (DTS), which reduces load unbalance and maximize resource utilization, and a Hierarchical Memory Interface controller (HMI), which provides support for concurrent memory operations on multi-ported/multi-banked shared memories. We evaluate our approach by generating the accelerators for a set of SPARQL queries from the Lehigh University Benchmark (LUBM). We first analyze the load unbalance of these queries, showing that execution time among tasks can differ even of order of magnitudes. We then synthesize the queries and compare the performance of the resulting accelerators against the current state of the art. Experimental results show that our solution provides a speedup over the serial implementation close to the theoretical maximum and a speedup up to 3.45 over a baseline parallel implementation. We conclude our study by exploring the design space to achieve maximum memory channels utilization. The best design used at least three of the four memory channels for more than 90% of the execution time. C1 [Minutoli, Marco; Castellana, Vito Giovanni; Tumeo, Antonino] Pacific Northwest Natl Lab, 907 Battelle Blvd, Richland, WA 99354 USA. [Lattuada, Marco; Ferrandi, Fabrizio] Politecn Milan, DEIB, Piazza Leonardo Da Vinci 32, I-20133 Milan, Italy. RP Minutoli, M (reprint author), Pacific Northwest Natl Lab, 907 Battelle Blvd, Richland, WA 99354 USA. EM marco.minutoli@pnnl.gov; vitogiovanni.castellana@pnnl.gov; antonino.tumeo@pnnl.gov; marco.lattuada@polimi.it; fabrizio.ferrandi@polimi.it NR 16 TC 0 Z9 0 U1 0 U2 0 PU ASSOC COMPUTING MACHINERY PI NEW YORK PA 1515 BROADWAY, NEW YORK, NY 10036-9998 USA SN 1933-7760 BN 978-1-4503-4466-1 J9 ICCAD-IEEE ACM INT PY 2016 DI 10.1145/2966986.2967030 PG 8 WC Computer Science, Theory & Methods; Engineering, Electrical & Electronic SC Computer Science; Engineering GA BG6HH UT WOS:000390297800128 ER PT S AU Caluwaerts, K Bruce, J Friesen, JM SunSpiral, V AF Caluwaerts, Ken Bruce, Jonathan Friesen, Jeffrey M. SunSpiral, Vytas BE Okamura, A Menciassi, A Ude, A Burschka, D Lee, D Arrichiello, F Liu, H Moon, H Neira, J Sycara, K Yokoi, K Martinet, P Oh, P Valdastri, P Krovi, V TI State Estimation for Tensegrity Robots SO 2016 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 16-21, 2016 CL Royal Inst Technol, Ctr Autonomous Syst, Stockholm, SWEDEN SP IEEE, IEEE Robot & Automat Soc, ABB, DJI, KUKA, Husqvarna, iRobot, Khalifa Univ, Kinova Univ, MOOG, PAL Robot, UBER, Amazon HO Royal Inst Technol, Ctr Autonomous Syst AB Tensegrity robots are a class of compliant robots that have many desirable traits when designing mass efficient systems that must interact with uncertain environments. Various promising control approaches have been proposed for tensegrity systems in simulation. Unfortunately, state estimation methods for tensegrity robots have not yet been thoroughly studied. In this paper, we present the design and evaluation of a state estimator for tensegrity robots. This state estimator will enable existing and future control algorithms to transfer from simulation to hardware. Our approach is based on the unscented Kalman filter (UKF) and combines inertial measurements, ultra wideband time-of-flight ranging measurements, and actuator state information. We evaluate the effectiveness of our method on the SUPERball, a tensegrity based planetary exploration robotic prototype. In particular, we conduct tests for evaluating both the robot's success in estimating global position in relation to fixed ranging base stations during rolling maneuvers as well as local behavior due to small-amplitude deformations induced by cable actuation. C1 [Caluwaerts, Ken] Oak Ridge Associated Univ, Oak Ridge, TN USA. [Bruce, Jonathan] Univ Calif Santa Cruz, Santa Cruz, CA USA. [Friesen, Jeffrey M.] Univ Calif San Diego, San Diego, CA USA. [SunSpiral, Vytas] SGT Inc, Greenbelt, MD USA. RP Caluwaerts, K (reprint author), Oak Ridge Associated Univ, Oak Ridge, TN USA. EM ken.caluwaerts@nasa.gov; jebruce@ucsc.edu; jfriesen@ucsd.edu; vytas.sunspiral@nasa.gov 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 1050-4729 BN 978-1-4673-8026-3 J9 IEEE INT CONF ROBOT PY 2016 BP 1860 EP 1865 PG 6 WC Automation & Control Systems; Robotics SC Automation & Control Systems; Robotics GA BG5KH UT WOS:000389516201094 ER PT S AU Hong, S Vatsavai, RR AF Hong, Seokyong Vatsavai, Ranga Raju BE Pu, C Fox, G Damiani, E TI A Scalable Probabilistic Change Detection Algorithm for Very High Resolution (VHR) Satellite Imagery SO 2016 IEEE INTERNATIONAL CONGRESS ON BIG DATA - BIGDATA CONGRESS 2016 SE IEEE International Congress on Big Data LA English DT Proceedings Paper CT IEEE International Congress on Big Data (BigData Congress) CY JUN 27-JUL 02, 2016 CL San Francisco, CA SP IEEE, IEEE Comp Soc, Serv Comp, Serv Soc, Cloud Comp, BiG Data, hp, IBM, ERICSSON, SAP, IBM Res, Huawei, Object Management Grp, IEEE Cloud Comp, Business Proc Integrat & Management, IT Profess, Int Journal Web Serv Res, Comp Now, IEEE Transact Serv Comp DE Probabilistic Change Detection; Satellite Image Processing; Spatial Data Mining; OpenMP ID CLASSIFICATION AB Detecting landscape changes using very high-resolution multispectral imagery demands an accurate and scalable algorithm that is robust to geometric and atmospheric errors. Existing pixel-based change detection approaches, however, have several drawbacks, which render them ineffective for VHR imagery analysis. A recent probabilistic change detection framework provides more accurate assessment of changes than traditional approaches by analyzing image patches than pixels. However, this patch (grid)-based approach produces coarse-resolution (patch size) changes. In this work we present a sliding window based approach that produces changes at the native image resolution. The increased computational demand of the sliding window based approach is addressed through thread-level parallelization on shared memory architectures. Our experimental evaluation showed a 91% performance improvement compared to its sequential counterpart on a KM 2 aerial image with varying window sizes on a 16-core (32 virtual threads) Intel Xeon processor. C1 [Hong, Seokyong; Vatsavai, Ranga Raju] North Carolina State Univ, Dept Comp Sci, Raleigh, NC 27695 USA. [Vatsavai, Ranga Raju] Oak Ridge Natl Lab, Oak Ridge, TN USA. RP Hong, S (reprint author), North Carolina State Univ, Dept Comp Sci, Raleigh, NC 27695 USA. EM shong3@ncsu.edu; rrvatsav@ncsu.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 2379-7703 BN 978-1-5090-2622-7 J9 IEEE INT CONGR BIG PY 2016 BP 275 EP 282 DI 10.1109/BigDataCongress.2016.42 PG 8 WC Computer Science, Information Systems; Computer Science, Theory & Methods SC Computer Science GA BG6FJ UT WOS:000390212200035 ER PT S AU Zheng, L Shin, SH Lloyd, S Gokhale, M Kim, K Kang, SM AF Zheng, Le Shin, Sangho Lloyd, Scott Gokhale, Maya Kim, Kyungmin Kang, Sung-Mo GP IEEE TI RRAM-Based TCAMs for Pattern Search SO 2016 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS) SE IEEE International Symposium on Circuits and Systems LA English DT Proceedings Paper CT IEEE International Symposium on Circuits and Systems (ISCAS) CY MAY 22-25, 2016 CL Montreal, CANADA SP IEEE, Tourisme Montreal, CMC Microsystems, Analog Devices, Mentor Graphics, IEEE LifeSciences, Hardent, Cambridge Scholars Publishing, Fujifilm Dimatix, UQAM, Dept Informatique, eSilicon, Springer DE memristor; TCAM; pattern search; emulator AB Content Addressable Memory (CAM) is beneficial to applications that require high-speed pattern searching as it provides fast associative lookup operations. As the amount of data to search continues to grow, reducing power consumption while minimizing the costs for speed and area is the main thread of research in designing large capacity CAMs. In this work, we are presenting an active memory architecture incorporating a searchable resistive memory. The proposed architecture incorporates processing logic in close proximity to the RRAM and the RRAM-based TCAM, where the unit TCAM cell is comprised of five transistors and two memristors. Analyzed and simulated performance (e.g., latency, energy consumption, and storage density) of the RRAM-based TCAM at various technology nodes are presented and compared to those of prior CAM/TCAM designs. C1 [Zheng, Le] Hewlett Packard Labs, Palo Alto, CA 94304 USA. [Shin, Sangho] Rowan Coll, Dept ECE, Glassboro, NJ 08028 USA. [Lloyd, Scott; Gokhale, Maya] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Kim, Kyungmin; Kang, Sung-Mo] Univ Calif Santa Cruz, Dept EE, Santa Cruz, CA 95064 USA. [Kang, Sung-Mo] Korea Adv Inst Sci & Technol, Taejon 305701, South Korea. RP Zheng, L (reprint author), Hewlett Packard Labs, Palo Alto, CA 94304 USA. NR 15 TC 0 Z9 0 U1 2 U2 2 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 0271-4302 BN 978-1-4799-5341-7 J9 IEEE INT SYMP CIRC S PY 2016 BP 1382 EP 1385 PG 4 WC Engineering, Electrical & Electronic SC Engineering GA BG6DT UT WOS:000390094701129 ER PT S AU Al Mamun, KA Gu, JL Hensley, DK Islam, SK McFarlane, N AF Al Mamun, Khandaker A. Gu, Jinlong Hensley, Dale K. Islam, Syed K. McFarlane, Nicole GP IEEE TI Integration of Carbon Nanostructures on CMOS for Lab-on-a-chip Sensing SO 2016 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS) SE IEEE International Symposium on Circuits and Systems LA English DT Proceedings Paper CT IEEE International Symposium on Circuits and Systems (ISCAS) CY MAY 22-25, 2016 CL Montreal, CANADA SP IEEE, Tourisme Montreal, CMC Microsystems, Analog Devices, Mentor Graphics, IEEE LifeSciences, Hardent, Cambridge Scholars Publishing, Fujifilm Dimatix, UQAM, Dept Informatique, eSilicon, Springer ID TEMPERATURE AB We review the challenges and suggest future directions of carbon nanostructure CMOS integration for lab-on-a-chip systems. Power and area requirements of standard benchtop sensor instrumentation limits their use in portable applications. We have been developing carbon based nanostructures and low power analog readouts to enable sensitive and highly efficient sensor measurement in a single measurement platform. Specifically, we review integration methods for carbon nanofibers and nanospikes with sensor readouts on a CMOS platform. These lab-on-chip systems offer high throughput, require low operating power and allow complete system implementation in portable and implantable devices. C1 [Al Mamun, Khandaker A.; Gu, Jinlong; Islam, Syed K.; McFarlane, Nicole] Univ Tennessee, Dept Elect Engn & Comp Sci, Knoxville, TN 37996 USA. [Hensley, Dale K.] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN USA. RP Al Mamun, KA (reprint author), Univ Tennessee, Dept Elect Engn & Comp Sci, Knoxville, TN 37996 USA. EM kmamun@vols.utk.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 0271-4302 BN 978-1-4799-5341-7 J9 IEEE INT SYMP CIRC S PY 2016 BP 2879 EP 2882 PG 4 WC Engineering, Electrical & Electronic SC Engineering GA BG6DT UT WOS:000390094703002 ER PT S AU Nordquist, CD Henry, MD Nguyen, JH Clews, P Lepkowski, S Grine, A Dyck, CW Olsson, RH AF Nordquist, Christopher D. Henry, M. David Nguyen, Janet H. Clews, Peggy Lepkowski, Stefan Grine, Alejandro Dyck, Christopher W. Olsson, Roy H., III GP IEEE TI Inductive Coupling for Increased Bandwidth of Aluminum Nitride Contour-Mode Microresonator Filters SO 2016 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 22-27, 2016 CL San Francisco, CA SP IEEE DE Resonator filters; coupling circuits; radiofrequency microelectromechanical systems; thin film inductors; piezoelectric transducers ID RESONATORS; DESIGN AB Inductive coupling and matching networks are used to increase the bandwidth of filters realized with aluminum nitride contour-mode resonators. Filter bandwidth has been doubled using a wirebonded combination of a wafer-level-packaged resonator chip and a high-Q integrated inductor chip. The three-pole filters have a center frequency near 500 MHz, an area of 9 mm x 9 mm, insertion loss of < 5 dB for a bandwidth of 0.4%, and a resonator unloaded Q of 1600. C1 [Nordquist, Christopher D.; Henry, M. David; Clews, Peggy; Lepkowski, Stefan; Grine, Alejandro; Dyck, Christopher W.; Olsson, Roy H., III] Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. [Nguyen, Janet H.] Qorvo, Bend, OR 97701 USA. RP Nordquist, CD (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 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 0149-645X BN 978-1-5090-0698-4 J9 IEEE MTT S INT MICR PY 2016 PG 4 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA BG6JO UT WOS:000390313200116 ER PT S AU O'Brien, K Macklin, C Hover, D Schwartz, ME Bolkhovsky, V Zhang, X Oliver, WD Siddiqi, I AF O'Brien, K. Macklin, C. Hover, D. Schwartz, M. E. Bolkhovsky, V. Zhang, X. Oliver, W. D. Siddiqi, I. GP IEEE TI Towards Quantum-Noise Limited Multiplexed Microwave Readout of Qubits SO 2016 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 22-27, 2016 CL San Francisco, CA SP IEEE DE broadband amplifiers; microwave amplifiers; nonlinear circuits; quantum computing; superconducting device noise AB Coherent circuits based on superconducting elements hold tremendous promise for the practical implementation of quantum information technology: advanced computation, cryptography, and hardware simulation of complex materials systems are envisioned applications. Such circuits are essentially engineered atoms with level transitions in the 4-8 GHz regime; as such "read" and "write" operations are performed with the aid of fast microwave pulses and low-noise amplifiers, respectively. Recent advances in cavity-based superconducting parametric amplifiers have enabled real-time measurement and feedback in one and two qubits. We demonstrate a novel Josephson junction transmission-line based traveling-wave amplifier which employs sub-wavelength phase matching resonators to achieve high gain, several GHz of bandwidth, and near quantum-noise limited performance. Such devices will enable multiplexed qubit readout in integrated architectures comprised of a variety of microwave frequency analog and digital superconducting technologies: signal sources, multiplexers, ADCs, DACs, mixers, and amplifiers. C1 [Macklin, C.; Schwartz, M. E.; Siddiqi, I.] Univ Calif Berkeley, Quantum Nanoelect Lab, Berkeley, CA 94720 USA. [O'Brien, K.; Zhang, X.] Univ Calif Berkeley, Nanoscale Sci & Engn Ctr, Berkeley, CA 94720 USA. [Hover, D.; Bolkhovsky, V.; Oliver, W. D.] MIT, Lincoln Lab, 244 Wood St, Lexington, MA 02420 USA. [Zhang, X.] Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA. [Oliver, W. D.] MIT, Elect Res Lab, 77 Massachusetts Ave, Cambridge, MA 02139 USA. RP O'Brien, K (reprint author), Univ Calif Berkeley, Nanoscale Sci & Engn Ctr, Berkeley, CA 94720 USA. EM irfan_siddiqi@berkeley.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 0149-645X BN 978-1-5090-0698-4 J9 IEEE MTT S INT MICR PY 2016 PG 3 WC Engineering, Electrical & Electronic; Physics, Applied SC Engineering; Physics GA BG6JO UT WOS:000390313200409 ER PT J AU Anderson, J Borga, A Boterenbrood, H Chen, H Chen, K Drake, G Donszelmann, M Francis, D Gorini, B Guest, D Lanni, F Miotto, GL Levinson, L Narevicius, J Roich, A Ryu, S Schreuder, F Schumacher, J Vandelli, W Vermeulen, J Wu, W Zhang, J AF Anderson, J. Borga, A. Boterenbrood, H. Chen, H. Chen, K. Drake, G. Donszelmann, M. Francis, D. Gorini, B. Guest, D. Lanni, F. Miotto, G. Lehmann Levinson, L. Narevicius, J. Roich, A. Ryu, S. Schreuder, F. Schumacher, J. Vandelli, W. Vermeulen, J. Wu, W. Zhang, J. GP IEEE TI FELIX: The New Approach for Interfacing to Front-end Electronics for the ATLAS Experiment SO 2016 IEEE-NPSS REAL TIME CONFERENCE (RT) LA English DT Proceedings Paper CT IEEE-NPSS Real Time Conference (RT) CY JUN 06-10, 2016 CL ITALY SP IEEE NPPS AB From the ATLAS Phase-I upgrade and onward, new or upgraded detectors and trigger systems will be interfaced to the data acquisition, detector control and timing (TTC) systems by the Front-End Link eXchange (FELIX). FELIX is the core of the new ATLAS Trigger/DAQ architecture. Functioning as a router between custom serial links and a commodity network, FELIX is implemented by server PCs with commodity network interfaces and PCIe cards with large FPGAs and many high speed serial fiber transceivers. By separating data transport from data manipulation, the latter can be done by software in commodity servers attached to the network. Replacing traditional point-to-point links between Front-end components and the DAQ system by a switched network, FELIX provides scaling, flexibility uniformity and upgradability and reduces the diversity of custom hardware solutions in favour of software. C1 [Anderson, J.; Drake, G.; Ryu, S.; Zhang, J.] Argonne Natl Lab, Lemont, IL 60439 USA. [Borga, A.; Boterenbrood, H.; Schreuder, F.; Vermeulen, J.] Univ Amsterdam, Nikhef Natl Inst Subatom Phys, Amsterdam, Netherlands. [Chen, H.; Chen, K.; Lanni, F.; Wu, W.] Brookhaven Natl Lab, POB 5000, Upton, NY 11973 USA. [Donszelmann, M.] Radboud Univ Nijmegen, Comeniuslaan 4, NL-6525 HP Nijmegen, Netherlands. [Francis, D.; Gorini, B.; Miotto, G. Lehmann; Schumacher, J.; Vandelli, W.] CERN, CH-1211 Geneva 23, Switzerland. [Guest, D.] Univ Calif Irvine, Irvine, CA 92717 USA. [Levinson, L.; Narevicius, J.; Roich, A.] Weizmann Inst Sci, Dept Particle Phys, IL-76100 Rehovot, Israel. [Schumacher, J.] Univ Paderborn, Dept Comp Sci, Paderborn, Germany. RP Anderson, J (reprint author), Argonne Natl Lab, Lemont, IL 60439 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 978-1-5090-2014-0 PY 2016 PG 2 WC Computer Science, Hardware & Architecture; Engineering, Electrical & Electronic SC Computer Science; Engineering GA BG5UW UT WOS:000389775600072 ER PT J AU Chen, K AF Chen, Kai CA ATLAS Liquid Argon Calorimeter Grp GP IEEE TI Development of ATLAS Liquid Argon Calorimeters Readout Electronics for HL-LHC SO 2016 IEEE-NPSS REAL TIME CONFERENCE (RT) LA English DT Proceedings Paper CT IEEE-NPSS Real Time Conference (RT) CY JUN 06-10, 2016 CL ITALY SP IEEE NPPS DE ATLAS; Liquid Argon Calorimeters; Readout Electronics AB The high-luminosity phase of the Large Hadron Collider (LHC) will provide 5-7 times greater instantaneous and total luminosities than assumed in the original design of the ATLAS Liquid Argon (LAr) Calorimeters and their readout system. The improved trigger system has a higher acceptance rate of 1 MHz and a longer latency of up to 60 micro-seconds. This requires an upgrade of the readout electronics, and a better radiation tolerance is also required. This paper will present concepts for the future readout of the 182,468 calorimeter channels at 40 or 80 MHz with a 16 bit dynamic range. Progress of the development of low-noise, low-power and high-bandwidth electronic components will be presented. These include radiation-tolerant preamplifiers, analog-to-digital converters (ADC) up to 14 bits and low-power optical links providing transfer rates of at least 10 Gbps per fiber. C1 [Chen, Kai] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. RP Chen, K (reprint author), Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. EM kchen@bnl.gov NR 9 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-5090-2014-0 PY 2016 PG 3 WC Computer Science, Hardware & Architecture; Engineering, Electrical & Electronic SC Computer Science; Engineering GA BG5UW UT WOS:000389775600033 ER PT J AU Wu, WH Begel, M Chen, HC Chen, K Lanni, F Takai, H Tang, SC AF Wu, Weihao Begel, Michael Chen, Hucheng Chen, Kai Lanni, Francesco Takai, Helio Tang, Shaochun CA ATLAS Collaboration GP IEEE TI The Development of the Global Feature 14,xtractor for the LHC Run-3 Upgrade of the Li Calorimeter Trigger System SO 2016 IEEE-NPSS REAL TIME CONFERENCE (RT) LA English DT Proceedings Paper CT IEEE-NPSS Real Time Conference (RT) CY JUN 06-10, 2016 CL ITALY SP IEEE NPPS AB The Global Feature Extractor (gFEX) is one of several modules in the LHC Run-3 upgrade of the Lev el 1 Calorimeter (L1Calo) trigger system in the ATLAS experiment. It is a single Advanced Telecommunications Computing Architecture (ATCA) module for large-area jet identification with three Xilinx Virtex UltraScale FPGAs for data processing and a system-on-chip (SoC) FPGA for control and monitoring. A pre-prototype board has been designed to verify all functionalities, which includes one Xilinx Virtex-7 FPGA, one Zynq FPGA, several MiniPODs, MicroPODs, DDR3 SDRAM and other components. The performance of the pre-prototype has been tested and evaluated. As a major challenge, the high-speed links in FPGAs are stable at 12.8 Gb/s with Bit Error Ratio (BER) < le (no error detected). The low-latency parallel GPIO (General Purpose I/O) buses for communication between FPGAs are stable at 960 Mb/s. The peripheral components of Zynq FPGA like DDRs, UART, SPI flashes, Ethernet and so on, have also been verified. The test results of the pre-prototype board validate the gFEX technologies and architecture. Now the prototype board with three UltraScale FPGAs is on the way. C1 [Wu, Weihao; Begel, Michael; Chen, Hucheng; Chen, Kai; Lanni, Francesco; Takai, Helio; Tang, Shaochun] Brookhaven Natl Lab, Upton, NY 11973 USA. RP Wu, WH (reprint author), Brookhaven Natl Lab, Upton, NY 11973 USA. EM weihaowu@bnl.gov 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 978-1-5090-2014-0 PY 2016 PG 3 WC Computer Science, Hardware & Architecture; Engineering, Electrical & Electronic SC Computer Science; Engineering GA BG5UW UT WOS:000389775600074 ER PT J AU Abeykoon, SK Zhang, YG Dill, ED Caswell, TA Allan, DB Akilic, A Wiegart, L Wilkins, S Heroux, A van Dam, KK Sutton, M Fluerasu, A AF Abeykoon, Sameera K. Zhang, Yugang Dill, Eric D. Caswell, Thomas A. Allan, Daniel B. Akilic, Arman Wiegart, Lutz Wilkins, Stuart Heroux, Annie van Dam, Kerstin K. Sutton, Mark Fluerasu, Andrei GP IEEE TI Software Tools for X-ray Photon Correlation and X-ray Speckle Visibility Spectroscopy SO 2016 NEW YORK SCIENTIFIC DATA SUMMIT (NYSDS) LA English DT Proceedings Paper CT New York Scientific Data Summit (NYSDS) CY AUG 14-17, 2016 CL New York, NY SP IEEE DE Scilitt-beam; X-ray Speckle Visibility Spectroscopy; X-ray Photon Correlation Spectroscopy ID FLUCTUATIONS; BEAMS AB A set of new data analysis software tools have been developed for the study of structural dynamics of materials using coherent scattering and photon correlation techniques. The new software tools can readily process high-throughput, multidimensional data, enabling studies of slow and fast dynamics of materials using X-ray Speckle Visibility Spectroscopy and Xray Photon Correlation Spectroscopy techniques. They support a wide range of user expertise, from novice to developer, and are available in Scikit-beam python package which is available at https://github.com/scikit-beam/scikit-beam. C1 [Abeykoon, Sameera K.; van Dam, Kerstin K.] Brookhaven Natl Lab, Comp Sci Initiat, Upton, NY 11973 USA. [Zhang, Yugang; Dill, Eric D.; Caswell, Thomas A.; Allan, Daniel B.; Akilic, Arman; Wiegart, Lutz; Wilkins, Stuart; Heroux, Annie; Fluerasu, Andrei] Brookhaven Natl Lab, Photon Sci Dept, Upton, NY 11973 USA. [Sutton, Mark] McGill Univ, Dept Phys, Montreal, PQ H3A 2T8, Canada. RP Abeykoon, SK (reprint author), Brookhaven Natl Lab, Comp Sci Initiat, Upton, NY 11973 USA. EM sameera@bnl.gov; flueras@bnl.gov NR 17 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4673-9051-4 PY 2016 PG 10 WC Computer Science, Interdisciplinary Applications; Computer Science, Software Engineering SC Computer Science GA BG6FT UT WOS:000390251000012 ER PT J AU Bernstein, HJ Andi, B Badalian, K Berman, LE Bhogadi, DK Chodankar, S DiFabio, J Fuchs, MR Jakoncic, J Lazo, EO McSweeney, S Miller, L Myers, S Schneider, DK Martins, BS Shi, W Skinner, J Slepicka, H Soares, AS Stojanoff, V Sweet, RM Tappero, R AF Bernstein, Herbert J. Andi, Babak Badalian, Kaden Berman, Lonny E. Bhogadi, Dileep K. Chodankar, Shirish DiFabio, Jonathan Fuchs, Martin R. Jakoncic, Jean Lazo, Edwin O. McSweeney, Sean Miller, Lisa Myers, Stuart Schneider, Dieter K. Martins, Bruno Seiva Shi, Wuxian Skinner, John Slepicka, Hugo Soares, Alexei S. Stojanoff, Vivian Sweet, Robert M. Tappero, Ryan GP IEEE TI Computing Infrastructure, Software Optimization, and Real Time Analysis for High Data-Rate MX SO 2016 NEW YORK SCIENTIFIC DATA SUMMIT (NYSDS) LA English DT Proceedings Paper CT New York Scientific Data Summit (NYSDS) CY AUG 14-17, 2016 CL New York, NY SP IEEE ID PROTEIN DATA-BANK; PILATUS AB Macromolecular Crystallography (MX) is becoming a big data science straining the capabilities of computers and networks. New techniques of serial crystallography are allowing new science to he done but they are increasing the heterogeneity of the data that must he handled. Two new beamlines at the National Synchrotron Light Source-11, for Frontier Macromolecular Crystallography (FMX) and for highly Automated Macromolecular Crystallography (AMX), are beginning user operation in 2016, and are dealing with these big data issues. This work is contributing to a worldwide High Data-Rate Macromolecular Crystallography (HDRMX) collaboration among crystallographic software developers, beamline scientists and controls people to resolve these issues as new high-brightness beamlines and new fast X-ray detectors come into increasing use. C1 [Bernstein, Herbert J.] Rochester Inst Technol, Sch Chem & Mat Sci, Rochester, NY 14623 USA. [Andi, Babak; Berman, Lonny E.; Bhogadi, Dileep K.; Chodankar, Shirish; DiFabio, Jonathan; Fuchs, Martin R.; Jakoncic, Jean; Lazo, Edwin O.; McSweeney, Sean; Miller, Lisa; Myers, Stuart; Schneider, Dieter K.; Martins, Bruno Seiva; Skinner, John; Slepicka, Hugo; Soares, Alexei S.; Stojanoff, Vivian; Sweet, Robert M.; Tappero, Ryan] Brookhaven Natl Lab, Upton, NY 11973 USA. [Badalian, Kaden] SUNY Binghamton, Binghamton, NY USA. [Shi, Wuxian] Case Western Univ, Cleveland, OH USA. RP Bernstein, HJ (reprint author), Rochester Inst Technol, Sch Chem & Mat Sci, Rochester, NY 14623 USA. EM yayahjb@gmail.com RI Chodankar, Shirish/B-7188-2017 OI Chodankar, Shirish/0000-0003-4850-2926 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 978-1-4673-9051-4 PY 2016 PG 4 WC Computer Science, Interdisciplinary Applications; Computer Science, Software Engineering SC Computer Science GA BG6FT UT WOS:000390251000025 ER PT J AU Cheng, SH Mueller, K Xu, W AF Cheng, Shenghui Mueller, Klaus Xu, Wei GP IEEE TI A Framework to Visualize Temporal Behavioral Relationships in Streaming Multivariate Data SO 2016 NEW YORK SCIENTIFIC DATA SUMMIT (NYSDS) LA English DT Proceedings Paper CT New York Scientific Data Summit (NYSDS) CY AUG 14-17, 2016 CL New York, NY SP IEEE DE information visualization; streaming data; high dimensional data; time-series; embedding AB Big Data analysis for scientific data is extremely challenging due to the following features high resolution, extreme scale, high acquisition rate, multivariate data format and aggregating in the streaming fashion. Therefore, a visual analysis tool that can process, reduce, manipulate and display extreme-scale data is critical for scientists to make the right decision on-site and adjust their measurement strategies during the experiment. The lack of these tools not only severely reduces the scientific throughput, but also impairs our capability for scientific discoveries. In this paper, we describe StreamVis(XD) - an interactive framework that provides several linked displays designed to reveal multivariate temporal behavior patterns from various perspectives. All of these displays generalize standard visualization paradigms such as line graphs from time samples to time intervals. As such the integral data type of our application is the time interval which we represent as a vector of time samples. Relationships of time intervals are expressed as similarities, possibly warped over time, of pairs of time vectors. These similarities can he among different variables at the same time interval, or different time intervals of the same variable. The former results in a line graph of streaming variables, while the latter results in a new display we called illustrative transform lines of time intervals over the variables. For both displays since the comparative metric is now painvise similarity, as opposed to absolute value, we require an optimization algorithm, such as multidimensional scaling to perform mapping into display coordinates. Additional displays include a 2D embedding of temporal snapshots of the variables, as well as a 2D embedding of temporal relationships changes among the variables. We demonstrate our system in an environmental pollution diagnostics setting and have obtained encouraging results. C1 [Cheng, Shenghui; Mueller, Klaus] SUNY Stony Brook, Dept Comp Sci, Stony Brook, NY 11794 USA. [Xu, Wei] Brookhaven Natl Lab, Computat Sci Initiat, Upton, NY 11973 USA. RP Cheng, SH (reprint author), SUNY Stony Brook, Dept Comp Sci, Stony Brook, NY 11794 USA. EM shecheng@cs.stonybrook.edu; mueller@cs.stonybrook.edu; xuw@bnl.gov 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 978-1-4673-9051-4 PY 2016 PG 10 WC Computer Science, Interdisciplinary Applications; Computer Science, Software Engineering SC Computer Science GA BG6FT UT WOS:000390251000005 ER PT J AU Choi, JY Kurc, T Logan, J Wolf, M Suchyta, E Kress, J Pugmire, D Podhorszki, N Byun, EK Ainsworth, M Pwashar, M Klasky, S AF Choi, Jong Youl Kurc, Tahsin Logan, Jeremy Wolf, Matthew Suchyta, Eric Kress, James Pugmire, David Podhorszki, Norbert Byun, Eun-Kyu Ainsworth, Mark Pwashar, Manish Klasky, Scott GP IEEE TI Stream Processing For Near Real-Time Scientific Data Analysis SO 2016 NEW YORK SCIENTIFIC DATA SUMMIT (NYSDS) LA English DT Proceedings Paper CT New York Scientific Data Summit (NYSDS) CY AUG 14-17, 2016 CL New York, NY SP IEEE AB The demand for near real-time analysis of streaming data is increasing rapidly in scientific projects. This trend is driven by the fact that it is expensive and time consuming to design and execute complex experiments and simulations. During an experiment, the research team and the team at the experiment facility will want to analyze data as it is generated, interpret it, and collaboratively make decisions to modify the experiment parameters or abort the experiment in order to prevent events that may damage experimental instruments or to avoid wasting resources if there is a problem. The increasing velocity and volume of streaming data and the multi-institutional nature of large-scale scientific projects present challenges to near real-time analysis of streaming data. In this work we develop a framework to address these challenges. This framework provides an interface for applications to define and interact with named, self-describing streams, takes advantage of advanced network technoloOes, and implements support for the reduction and compression of data at the source. We describe this framework and demostrate its application in three scientific applications. C1 [Choi, Jong Youl; Kurc, Tahsin; Logan, Jeremy; Wolf, Matthew; Suchyta, Eric; Kress, James; Pugmire, David; Podhorszki, Norbert; Ainsworth, Mark; Klasky, Scott] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Kurc, Tahsin] SUNY Stony Brook, Stony Brook, NY 11794 USA. [Logan, Jeremy] Univ Tennessee Knoxville, Knoxville, TN USA. [Kress, James] Univ Oregon, Eugene, OR 97403 USA. [Byun, Eun-Kyu] Korea Inst Sci & Technol Informat, Daejeon, South Korea. [Ainsworth, Mark] Brown Univ, Providence, RI 02912 USA. [Pwashar, Manish] Rutgers State Univ, New Brunswick, NJ USA. RP Choi, JY (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 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 BN 978-1-4673-9051-4 PY 2016 PG 8 WC Computer Science, Interdisciplinary Applications; Computer Science, Software Engineering SC Computer Science GA BG6FT UT WOS:000390251000001 ER PT J AU Churchill, RM AF Churchill, R. Michael GP IEEE TI Analyzing Large Data Sets from XGC1 Magnetic Fusion Simulations using Apache Spark SO 2016 NEW YORK SCIENTIFIC DATA SUMMIT (NYSDS) LA English DT Proceedings Paper CT New York Scientific Data Summit (NYSDS) CY AUG 14-17, 2016 CL New York, NY SP IEEE DE spark; magnetic fusion; simulation; machine-learning; distributed computing; k-means clustering ID DEVICES; PLASMA AB Apache Spark is explored as a tool for analyzing large data sets from the magnetic fusion simulation code XGCI. Implementation details of Apache Spark on the NERSC Edison supercomputer are discussed, including binary file reading, and parameter setup. An unsupervised machine learning algorithm, k-means clustering, is applied to XGCI particle distribution function data, showing that highly turbulent spatial regions do not have common coherent structures, but rather broad, ring-like structures in velocity space. C1 [Churchill, R. Michael] Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA. RP Churchill, RM (reprint author), Princeton Plasma Phys Lab, POB 451, Princeton, NJ 08543 USA. EM rchurchi@pppl.gov NR 9 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4673-9051-4 PY 2016 PG 3 WC Computer Science, Interdisciplinary Applications; Computer Science, Software Engineering SC Computer Science GA BG6FT UT WOS:000390251000017 ER PT J AU Cisek, D Dale, J Pepper, S Mahajan, M Yoo, S AF Cisek, Daniel Dale, Jedidiah Pepper, Susan Mahajan, Manoj Yoo, Shinjae GP IEEE TI Parking lot delineation and object detection using a localized Convolutional Neural Network SO 2016 NEW YORK SCIENTIFIC DATA SUMMIT (NYSDS) LA English DT Proceedings Paper CT New York Scientific Data Summit (NYSDS) CY AUG 14-17, 2016 CL New York, NY SP IEEE DE Deep Learning; Neural Network; Geospatial; Automation; Satellite Imagery AB Satellite imagery analysis is becoming increasingly important in a variety of fields. Automation of analysts' workflows has the potential to greatly increase their efficiency and effectiveness. Specifically, developing automatic parking lot extraction from overhead imagery has huge importance to predicting stores future sales. However, to the best of our knowledge, there is no prior work for the development of an end-to-end pipeline for this task. This paper outlines a method for automating parking lot extraction from overhead imagery. We address this challenge using the combination of a Convolutional Neural Network (CNN) and various morphological tools of analysis. Our pilot end-to-end pipeline has been shown to be effective even in complex environments, and exhibits promising results for the automation of imagery analysis. C1 [Cisek, Daniel] St Josephs Coll, Patchogue, NY 11772 USA. [Dale, Jedidiah] Univ Penn, Philadelphia, PA 19104 USA. [Pepper, Susan; Yoo, Shinjae] Brookhaven Natl Lab, Upton, NY 11973 USA. [Mahajan, Manoj] SUNY Stony Brook, Stony Brook, NY 11794 USA. RP Cisek, D (reprint author), St Josephs Coll, Patchogue, NY 11772 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 978-1-4673-9051-4 PY 2016 PG 5 WC Computer Science, Interdisciplinary Applications; Computer Science, Software Engineering SC Computer Science GA BG6FT UT WOS:000390251000018 ER PT J AU Elsethagen, T Stephan, E Raju, B Schram, M MacDuff, M Kerbyson, D van Dam, KK Singh, A Altintas, I AF Elsethagen, Todd Stephan, Eric Raju, Bibi Schram, Malachi MacDuff, Matt Kerbyson, Darrern van Dam, Kerstin Kleese Singh, Alok Altintas, Ilkay GP IEEE TI Data Provenance Hybridization Supporting Extreme-Scale Scientific WorkflowApplications SO 2016 NEW YORK SCIENTIFIC DATA SUMMIT (NYSDS) LA English DT Proceedings Paper CT New York Scientific Data Summit (NYSDS) CY AUG 14-17, 2016 CL New York, NY SP IEEE DE provenance; scientific workflow; performance; ontology; real-time; scalability ID WORKFLOWS AB As high performance computing (HPC) infrastructures continue to grow in capability and complexity, so do the applications that they serve. HPC and distributed-area computing (DAC) (e.g. grid and cloud) users are looking increasingly toward workflow solutions to orchestrate their complex application coupling, pre- and post-processing needs. To that end, the US Department of Energy Integrated end-to-end Performance Prediction and Diagnosis for Extreme Scientific Workflows (IPPD) project is currently investigating an integrated approach to prediction and diagnosis of these extreme-scale scientific workflows. To gain insight and a more quantitative understanding of a workflow's performance our method includes not only the capture of traditional provenance information, but also the capture and integration of system environment metrics helping to give context and explanation for a workflow's execution. In this paper, we describe IPPD's provenance management solution (ProvEn) and its hybrid data store combining both of these data provenance perspectives. We discuss design and implementation details that include provenance disclosure, scalability, data integration, and a discussion on query and analysis capabilities. We also present use case examples for climate modeling and thermal modeling application domains. C1 [Elsethagen, Todd; Stephan, Eric; Raju, Bibi; Schram, Malachi; MacDuff, Matt; Kerbyson, Darrern] Pacific Northwest Natl Lab, Richland, WA 99354 USA. [van Dam, Kerstin Kleese] Brookhaven Natl Lab, Upton, NY 11973 USA. [Singh, Alok; Altintas, Ilkay] Univ Calif San Diego, San Diego Supercomp Ctr, La Jolla, CA 92093 USA. RP Elsethagen, T (reprint author), Pacific Northwest Natl Lab, Richland, WA 99354 USA. EM todd.elsethagen@pnnl.gov; eric.stephan@pnnl.gov; bibi.raju@pnnl.gov; malachi.schram@pnnl.gov; matt.macduff@pnnl.gov; darren.kerbyson@pnnl.gov; kleese@bnl.gov; alsingh@eng.ucsd.edu; altintas@sdsc.edu NR 32 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4673-9051-4 PY 2016 PG 10 WC Computer Science, Interdisciplinary Applications; Computer Science, Software Engineering SC Computer Science GA BG6FT UT WOS:000390251000016 ER PT J AU Hou, L Singh, K Samaras, D Kure, TM Gao, Y Seidman, RJ Saltz, JH AF Hou, Le Singh, Kunal Samaras, Dimitris Kure, Tahsin M. Gao, Yi Seidman, Roberta J. Saltz, Joel H. GP IEEE TI Automatic Histopathology Image Analysis with CNNs SO 2016 NEW YORK SCIENTIFIC DATA SUMMIT (NYSDS) LA English DT Proceedings Paper CT New York Scientific Data Summit (NYSDS) CY AUG 14-17, 2016 CL New York, NY SP IEEE DE Pathomics; Nucleus Classification; Convolutional Neural Network ID RADIOMICS AB We define Pathomics as the process of high throughput generation, interrogation, and mining of quantitative features from high-resolution histopathology tissue images. Analysis and mining of large volumes of imaging features has great potential to enhance our understanding of tumors. The basic Pathomics workflow consists of several steps: segmentation of tissue images to delineate the boundaries of nuclei, cells, and other structures; computation of size, shape, intensity, and texture features for each segmented object; classification of images and patients based on imaging features; and correlation of classification results with genomic signatures and clinical outcome. Executing a Pathomics workflow on a dataset of thousands of very high resolution (gigapixels) and heterogeneous histopathology images is a computationally challenging problem. In this paper, we use Convolutional Neural Networks (CNN) for automatic recognition of nuclear morphological attributes in histopathology images of glioma, the most common malignant brain tumor. We constructed a comprehensive multi-label dataset of glioma nuclei and applied two CNN based methods on this dataset. Both methods perform well recognizing some but not all morphological attributes and are complementary with each other. C1 [Hou, Le; Samaras, Dimitris; Gao, Yi; Saltz, Joel H.] SUNY Stony Brook, Dept Comp Sci, Stony Brook, NY 11794 USA. [Kure, Tahsin M.; Gao, Yi; Saltz, Joel H.] SUNY Stony Brook, Dept Biomed Informat, Stony Brook, NY 11794 USA. [Gao, Yi] SUNY Stony Brook, Dept Appl Math & Stat, Stony Brook, NY 11794 USA. [Kure, Tahsin M.] Oak Ridge Natl Lab, Oak Ridge, TN USA. [Seidman, Roberta J.; Saltz, Joel H.] Stony Brook Hosp, Dept Pathol, Stony Brook, NY USA. [Saltz, Joel H.] Stony Brook Hosp, Ctr Canc, Stony Brook, NY USA. RP Hou, L (reprint author), SUNY Stony Brook, Dept Comp Sci, Stony Brook, NY 11794 USA. NR 20 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4673-9051-4 PY 2016 PG 6 WC Computer Science, Interdisciplinary Applications; Computer Science, Software Engineering SC Computer Science GA BG6FT UT WOS:000390251000009 ER PT J AU Katramatos, D Yue, M Yoo, S van Dam, KK Xu, J Zhang, JY AF Katramatos, Dimitrios Yue, Meng Yoo, Shinjae van Dam, Kerstin Kleese Xu, Jin Zhang, Jiayao GP IEEE TI Streaming Data Analysis on the Wire SO 2016 NEW YORK SCIENTIFIC DATA SUMMIT (NYSDS) LA English DT Proceedings Paper CT New York Scientific Data Summit (NYSDS) CY AUG 14-17, 2016 CL New York, NY SP IEEE DE Big Data; streaming; network; analysis AB In the era of Big Data, more data can be potentially found in transit at any given moment than in storage. In this paper we discuss the feasibility of applying certain forms of processing on the wire, i.e., while data is in flight through the network. In a similar manner to cybersecurity processes and exploiting software defined networking concepts, we seek to design a framework for Analysis on the Wire that can on-demand perform computations on data streaming through the network at specific network nodes. We further discuss use cases and perform preliminary evaluation of the proposed framework. C1 [Katramatos, Dimitrios; Yue, Meng; Yoo, Shinjae; van Dam, Kerstin Kleese] Brookhaven Natl Lab, Upton, NY 11973 USA. [Xu, Jin; Zhang, Jiayao] SUNY Stony Brook, Stony Brook, NY 11794 USA. RP Katramatos, D (reprint author), Brookhaven Natl Lab, Upton, NY 11973 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 978-1-4673-9051-4 PY 2016 PG 7 WC Computer Science, Interdisciplinary Applications; Computer Science, Software Engineering SC Computer Science GA BG6FT UT WOS:000390251000013 ER PT J AU Lee, HS McGuigan, M AF Lee, Han Soul McGuigan, Michael GP IEEE TI Visualization of the Higgs Interaction in the Standard Model and Beyond the Standard Model Physics SO 2016 NEW YORK SCIENTIFIC DATA SUMMIT (NYSDS) LA English DT Proceedings Paper CT New York Scientific Data Summit (NYSDS) CY AUG 14-17, 2016 CL New York, NY SP IEEE C1 [Lee, Han Soul] Univ Manitoba, Dept Phys & Astron, Winnipeg, MB, Canada. [McGuigan, Michael] Brookhaven Natl Lab, Dept Computat Sci, Upton, NY 11973 USA. RP Lee, HS (reprint author), Univ Manitoba, Dept Phys & Astron, Winnipeg, MB, Canada. EM Hansoullee20@gmail.com; mcguigan@bnl.gov NR 4 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4673-9051-4 PY 2016 PG 5 WC Computer Science, Interdisciplinary Applications; Computer Science, Software Engineering SC Computer Science GA BG6FT UT WOS:000390251000020 ER PT J AU Low, Y McGuigan, M AF Low, Yeeren McGuigan, Michael GP IEEE TI Visualization and Simulation of the Material Properties of Carbon Nanotori SO 2016 NEW YORK SCIENTIFIC DATA SUMMIT (NYSDS) LA English DT Proceedings Paper CT New York Scientific Data Summit (NYSDS) CY AUG 14-17, 2016 CL New York, NY SP IEEE DE graphene; carbon nanotubes; carbon nanotori; visualization; simulation AB We use visualization, animation, and simulation to investigate the material properties of carbon nanotori. To study the carbon nanotori we use the tight-binding model with nearest neighbor interactions together with an interaction term involving the Coulomb interaction between the electrons and has been effectively used for graphene and carbon nanotubes. We use the non-interacting tight-binding model to for our simulations and visualizations. C1 [Low, Yeeren] Georgia Inst Technol, Coll Comp, Atlanta, GA 30332 USA. [McGuigan, Michael] Brookhaven Natl Lab, Computat Sci Initiat, Upton, NY 11973 USA. RP Low, Y (reprint author), Georgia Inst Technol, Coll Comp, Atlanta, GA 30332 USA. EM ylow30@gatech.edu; mcguigan@bnl.gov 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 978-1-4673-9051-4 PY 2016 PG 4 WC Computer Science, Interdisciplinary Applications; Computer Science, Software Engineering SC Computer Science GA BG6FT UT WOS:000390251000021 ER PT J AU Malitsky, N AF Malitsky, Nikolay GP IEEE TI Bringing the HPC reconstruction algorithms to Big Data platforms SO 2016 NEW YORK SCIENTIFIC DATA SUMMIT (NYSDS) LA English DT Proceedings Paper CT New York Scientific Data Summit (NYSDS) CY AUG 14-17, 2016 CL New York, NY SP IEEE DE Big Data; HPC; Spark; MPI; experimental facility AB The HPC and Big Data technologies are two important modern means of the scientific discovery process, but until recently, their development was evolved along two independent paths. Born and matured prior to the Big Data era, HPC scientific-oriented applications were implemented with the Message Passing Interface (MPI) protocol. MPI, however, was not designed for data-intensive applications and therefore requires project-specific extensions. An efficient processing framework offered by the Spark computational platform resolved many issues and built a strong foundation for their subsequent integration. At this time, the Spark ecosystem encompasses a rich collection of data analysis algorithms covering everything from SQL queries, to machine learning, to graph processing. Therefore, the paper proposes to extend this scope with the HPC applications of light source experimental facilities. Specifically, it focuses on the Spark-based integration of the SHARP distributed ptychographic solver developed by the team of the Center for Advanced Mathematics for Research Applications (CAMERA) at Berkeley. Aside from its practical value, this application represents an excellent reference use case that captures the major technical aspects of other beamline applications. The resulting approach is derived from the analysis of alternative communication models implemented in Spark-based distributed deep learning frameworks. C1 [Malitsky, Nikolay] Brookhaven Natl Lab, NSLS Dept 2, POB 5000, Upton, NY 11973 USA. RP Malitsky, N (reprint author), Brookhaven Natl Lab, NSLS Dept 2, POB 5000, Upton, NY 11973 USA. EM malitsky@bnl.gov NR 38 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4673-9051-4 PY 2016 PG 8 WC Computer Science, Interdisciplinary Applications; Computer Science, Software Engineering SC Computer Science GA BG6FT UT WOS:000390251000015 ER PT J AU Megret, R Yoo, S Zakharov, D Stach, E AF Megret, Remi Yoo, Shinjae Zakharov, Dmitri Stach, Eric GP IEEE TI Analysis of nanoparticle growth in Environmental Transmission Electron Microscopy SO 2016 NEW YORK SCIENTIFIC DATA SUMMIT (NYSDS) LA English DT Proceedings Paper CT New York Scientific Data Summit (NYSDS) CY AUG 14-17, 2016 CL New York, NY SP IEEE DE Environmental Transmission Electron; Microscopy; image analysis; nanoparticle; segmentation; tracking ID PARTICLE TRACKING; CELL AB Recent advances in nanostructures study and design require pushing further the synthesis techniques, where the temporal aspect plays an increasingly important role. Environmental Transmission Electron Microscopy (ETEM) provides a powerful tool to observe the formation and evolution of nanoparticles over time in controlled conditions. However, ETEM generates large amounts of data, which cannot easily be analyzed manually. In this paper, we describe an automatic image analysis pipeline for the automatic detection and tracking of the nanoparticles, which enables the extraction of the growth rate of nanoparticles acquired in ETEM. This work demonstrates the feasibility of designing a high-throughput automated analysis system for this imaging modality. The proposed approach is evaluated and compared to baseline approaches on real data acquired at the Center for Functional Nanomaterials. C1 [Megret, Remi] Univ Puerto Rico, Dept Math Sci, Mayaguez Campus, Mayaguez, PR USA. [Megret, Remi] Univ Puerto Rico, Dept Comp Sci, Rio Piedras Campus, San Juan, PR, Brazil. [Yoo, Shinjae] Brookhaven Natl Lab, Comp Sci Initiat, Upton, NY 11973 USA. [Zakharov, Dmitri; Stach, Eric] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA. RP Megret, R (reprint author), Univ Puerto Rico, Dept Math Sci, Mayaguez Campus, Mayaguez, PR USA. EM remi.megret@upr.edu; sjyoo@bnl.gov; dzakharov@bnl.gov; estach@bnl.gov NR 9 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4673-9051-4 PY 2016 PG 4 WC Computer Science, Interdisciplinary Applications; Computer Science, Software Engineering SC Computer Science GA BG6FT UT WOS:000390251000022 ER PT J AU Thomas, M Laskin, J Raju, B Stephan, E Elsethagen, T Van, N Nguyen, S AF Thomas, Mathew Laskin, Julia Raju, Bibi Stephan, Eric Elsethagen, Todd Nhuy Van Son Nguyen GP IEEE TI Enabling Re-executable Workflows with Near-real-time Visualization, Provenance Capture and Advanced Querying for Mass Spectrometry Data SO 2016 NEW YORK SCIENTIFIC DATA SUMMIT (NYSDS) LA English DT Proceedings Paper CT New York Scientific Data Summit (NYSDS) CY AUG 14-17, 2016 CL New York, NY SP IEEE DE msi quickview; mass spectrometry; provenance; re-executable workflows ID SINGLE-PROBE; SOFTWARE AB Mass spectrometry imaging (MSI) enables simultaneous spatially-resolved analysis of numerous ionizable molecules on a sample surface. Ambient ionization techniques are attractive because they enable imaging without sample pretreatment. The current analysis pipeline involves analyzing the data coming off the instrument using a tool called MSI Quickview and saving the results onto a storage drive before moving on to the next experiment. While this works well for single datasets, there is a demand for more scalable, flexible workflows that are re-executable across datasets, support extensive querying and ease collaboration. Here, we present a workflow that moves data analysis from a mere desktop application for single experiments to a more general capability that can be possibly extended to perform multi-modal analysis across datasets. The core components of the workflow include (1) MSI Quickview, a desktop application for the near-real time visualization and analysis of mass spectrometry data; (2) Provenance Environment (ProvEn), a provenance production and collection framework that provides components supporting the production and collection of provenance information for distributed application environments; (3) Elasticsearch, a readily-scalable, broadly-distributable, enterprise-grade search engine that is accessible through an elaborate and extensive API to power extremely fast indexing and searches that support your data discovery applications; (4) Logstach, processing of log files; and (5) Kibana, a platform to visualize, analyze and explore data from multiple sources including Elasticsearch and Logstash. C1 [Thomas, Mathew; Laskin, Julia; Raju, Bibi; Stephan, Eric; Elsethagen, Todd; Nhuy Van; Son Nguyen] Pacific Northwest Natl Lab, Richland, WA 99354 USA. RP Thomas, M (reprint author), Pacific Northwest Natl Lab, Richland, WA 99354 USA. EM mathew.thomas@pnnl.gov; julia.laskin@pnnl.gov; bibi.raju@pnnl.gov; eric.stephan@pnnl.gov; todd.elsethagen@pnnl.gov; nhuy.van@pnnl.gov; son.nguyen@pnnl.gov 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 978-1-4673-9051-4 PY 2016 PG 10 WC Computer Science, Interdisciplinary Applications; Computer Science, Software Engineering SC Computer Science GA BG6FT UT WOS:000390251000003 ER PT J AU Wang, BY Guan, ZQ Yao, S Qin, H Nguyen, MH Yager, K Yu, DT AF Wang, Boyu Guan, Ziqiao Yao, Shun Qin, Hong Minh Hoai Nguyen Yager, Kevin Yu, Dantong GP IEEE TI Deep learning for analysing synchrotron data streams SO 2016 NEW YORK SCIENTIFIC DATA SUMMIT (NYSDS) LA English DT Proceedings Paper CT New York Scientific Data Summit (NYSDS) CY AUG 14-17, 2016 CL New York, NY SP IEEE DE X Ray Image Classification; Deep learning; CNN AB The National Synchrotron Light Source II (NSLS-II) at Brookhaven National Laboratory (BNL) is now providing some of the world's brightest x-ray beams. A suite of imaging and diffraction methods, exploiting megapixel detectors with kilohertz frame-rates at NSLS-II beamlines, generate a variety of image streams in unprecedented velocities and volumes. A complete understanding of a complex material system often requires a cluster of x-ray characterization tools that can reveal its elemental, structural, chemical and physical properties at different length-scales and time -scales. The flourish and continuing refinement of x-ray probes enable that the same sample may be studied with different perspectives and granularities, and at different time and locations; these powerful tools generate a correspondingly daunting big data challenge, with multiple image streams that outpaces any manual efforts and traditional data analysis practice. In this paper, we applied deep learning methods, in particular, deep convolutional neural network (CNN) to automatically recognize image features from image streams from NSLS-II, and integrated our deep-learning methods into the Google Tensortlow to cluster and label both real and synthetic 2-D scattering image patterns. These methods would empower scientists by providing timely insights, allowing them to steer experiments efficiently during their precious x-ray beamtime allocation. Experiment shows that the CNN-based image labeling attains a 10% improvement over traditional K-mean and Support Vector Machine. C1 [Wang, Boyu] SUNY Stony Brook, Dept Comp Sci, Dept Biochem & Struct Biol, Stony Brook, NY 11794 USA. Brookhaven Natl Lab, Computat Sci Initiat, Ctr Funct Nanomat, Upton, NY 11973 USA. RP Wang, BY (reprint author), SUNY Stony Brook, Dept Comp Sci, Dept Biochem & Struct Biol, Stony Brook, NY 11794 USA. EM boyu.wang@stonybrook.edu; zigiao.guan@stonybrook.edu; shun.yao@stonybrook.edu; qin@stonybrook.edu; minhhoai@stonybrook.edu; kyager@bnl.gov; dtyu@bnl.gov NR 9 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4673-9051-4 PY 2016 PG 5 WC Computer Science, Interdisciplinary Applications; Computer Science, Software Engineering SC Computer Science GA BG6FT UT WOS:000390251000010 ER PT J AU Thompson, M Muggier, M Mendolla, M Ike, M AF Thompson, Michael Muggier, Michael Mendolla, Marilyne Ike, Moses GP IEEE TI Dynamic Application Rotation Environment for Moving Target Defense SO 2016 RESILIENCE WEEK (RWS) LA English DT Proceedings Paper CT Resilience Week (RWS) CY AUG 16-18, 2016 CL Chicago, IL SP Idaho Natl Labs, Inst Elect & Elect Engineers, IEEE Ind Elect Soc DE self-adaptive technologies; resilience computer and control systems; robust systems; cybersecurity; moving target defense; computer security; computer hacking; Internet; cyberspace; security; proactive defense; operating systems; platform diversity AB Owing to the ubiquity of web applications in modern computing, the server software that delivers these applications is an attractive attack vector for would-be malicious actors in cyberspace. Recently, Moving Target Defense (MTD) strategies have grown in popularity in the computer security community because of their ability to enhance resilience and force attackers into uncharacteristic behavior. The MTD prototype discussed in this paper acts as a proactive defense strategy that offers increased protection against an attacker's ability to probe for and exploit vulnerable web server software. The testing shows that web server diversity in an MTD reduces the ability to exploit vulnerabilities in a web server, reduces impacts of successfully exploited vulnerabilities, and increases the resilience of the protected application. C1 [Thompson, Michael] Argonne Natl Lab, Global Secur Sci, 9700 S Cass Ave, Argonne, IL 60439 USA. [Muggier, Michael; Mendolla, Marilyne; Ike, Moses] Univ Texas Dallas, Dept Comp Sci, Dallas, TX USA. RP Thompson, M (reprint author), Argonne Natl Lab, Global Secur Sci, 9700 S Cass Ave, Argonne, IL 60439 USA. EM thompsonm@anl.gov; mxm121531@utdallas.edu; mxm122230@utdallas.edu; mji120030@utdallas.edu 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 978-1-5090-2002-7 PY 2016 BP 17 EP 26 PG 10 WC Engineering, Electrical & Electronic SC Engineering GA BG6IA UT WOS:000390301800003 ER PT J AU Penkey, P Alla, M Johnson, BK McJunkin, TR AF Penkey, Pavan Alla, Matchyaraju Johnson, Brian K. McJunkin, Timothy R. GP IEEE TI Improving Transmission System Resilience Using an Automation Controller and Distributed Resources SO 2016 RESILIENCE WEEK (RWS) LA English DT Proceedings Paper CT Resilience Week (RWS) CY AUG 16-18, 2016 CL Chicago, IL SP Idaho Natl Labs, Inst Elect & Elect Engineers, IEEE Ind Elect Soc DE RTDS; HMI; IEC 61850; GOOSE; EMTP; DER; Resiliency AB As the transmission network has evolved over time, it has been operated closer to its limits and as a result lacks the ability to handle severe contingencies such as extreme weather, natural disasters, major generation failure, loss of transmission lines, or cyber-attacks. Depending on the timing of the event, these conditions could lead to cascading problems which can bring down an area larger than that directly affected by the event if they are not handled properly. Recent technological advancements in lower cost communication and control plus the increased use of distributed generation, gives an opportunity to break the transmission network into independent networks supplying local critical loads beyond the break points used by regional transmission operators. This paper demonstrates the concept with a relatively simple transmission system model and utilizes a commercial automation controller to partition the system. The local generators are able to supply the local critical loads. An algorithm is proposed to detect the abnormal situations and to isolate the system into independent networks. The isolated systems can supply the local critical loads under stable operating conditions following generator shedding or shedding of less critical loads. The entire system is modeled in a Real Time Digital Simulator (RTDS) along with an automation controller which communicates with model using the IEC 61850 standard protocol. The entire operation can be monitored and controlled with the help of a Human Machine Interface developed for the project. C1 [Penkey, Pavan; Alla, Matchyaraju; Johnson, Brian K.] Univ Idaho, Moscow, ID 83844 USA. [McJunkin, Timothy R.] Idaho Natl Lab, Idaho Falls, ID 83415 USA. RP Penkey, P (reprint author), Univ Idaho, Moscow, ID 83844 USA. EM penk1970@vandals.uidaho.edu; alla4567@vandals.uidaho.edu; bjohnson@uidaho.edu; timothy.mcjunkin@inl.gov OI McJunkin, Timothy/0000-0002-4987-9170 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 978-1-5090-2002-7 PY 2016 BP 89 EP 94 PG 6 WC Engineering, Electrical & Electronic SC Engineering GA BG6IA UT WOS:000390301800014 ER PT J AU Ashok, A Sridhar, S McKinnon, AD Wang, PY Govindarasu, M AF Ashok, Aditya Sridhar, Siddharth McKinnon, A. David Wang, Pengyuan Govindarasu, Manimaran GP IEEE TI Testbed-based Performance Evaluation of Attack Resilient Control for AGC SO 2016 RESILIENCE WEEK (RWS) LA English DT Proceedings Paper CT Resilience Week (RWS) CY AUG 16-18, 2016 CL Chicago, IL SP Idaho Natl Labs, Inst Elect & Elect Engineers, IEEE Ind Elect Soc AB The modern electric power grid is a complex cyber-physical system whose reliable operation is enabled by a wide-area monitoring and control infrastructure. Recent events have shown that vulnerabilities in this infrastructure may be exploited to manipulate the data being exchanged. Such a scenario could cause the associated control applications to mis-operate, potentially causing system-wide instabilities. There is a growing emphasis on looking beyond traditional cybersecurity solutions to mitigate such threats. In this paper we perform a testbed-based validation of one such solution - Attack Resilient Control (ARC) - on Iowa State University's PowerCyber testbed. ARC is a cyber-physical security solution that combines domain-specific anomaly detection and model-based mitigation to detect stealthy attacks on Automatic Generation Control (AGC). In this paper, we first describe the implementation architecture of the experiment on the testbed. Next, we demonstrate the capability of stealthy attack templates to cause forced under-frequency load shedding in a 3-area test system. We then validate the performance of ARC by measuring its ability to detect and mitigate these attacks. Our results reveal that ARC is efficient in detecting stealthy attacks and enables AGC to maintain system operating frequency close to its nominal value during an attack. Our studies also highlight the importance of testbed-based experimentation for evaluating the performance of cyber-physical security and control applications. C1 [Ashok, Aditya; Sridhar, Siddharth; McKinnon, A. David] Pacific Northwest Natl Lab, Richland, WA 99352 USA. [Wang, Pengyuan; Govindarasu, Manimaran] Iowa State Univ, Ames, IA 50011 USA. RP Ashok, A (reprint author), Pacific Northwest Natl Lab, Richland, WA 99352 USA. EM aditya.ashok@pnnl.gov; siddharth.sridhar@pnnl.gov; david.mckinnon@pnnl.gov; pywang@iastate.edu; gmani@iastate.edu NR 16 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-5090-2002-7 PY 2016 BP 125 EP 129 PG 5 WC Engineering, Electrical & Electronic SC Engineering GA BG6IA UT WOS:000390301800020 ER PT J AU Thompson, M Evans, N AF Thompson, Michael Evans, Nathaniel GP IEEE TI Internet Resilience in Ashburn, Virginia SO 2016 RESILIENCE WEEK (RWS) LA English DT Proceedings Paper CT Resilience Week (RWS) CY AUG 16-18, 2016 CL Chicago, IL SP Idaho Natl Labs, Inst Elect & Elect Engineers, IEEE Ind Elect Soc DE Communications technology; Optical communication equipment; Communication switching; Broadband communication; Cyberspace; Internet; IP networks; TCPIP; Routing; Aerospace accidents; Communication industry; Petroleum industry; Power industry; Power system reliability; Power system stability; Emergency services; Fault tolerance; Redundancy; Telecommunication network reliability; Electromagnetic devices AB Internet infrastructure is highly distributed among different private and public sector entities. Although networks using Transmission Control Protocol (TCP) are highly resistant to failures -- especially when multiple paths from sender to receiver exist - they have the potential to fail if a concentration of high-capacity routes between a particular sender and receiver become unavailable. The geographic locality of such a large quantity of data centers and network routes in the Ashburn, Virginia, area makes this concentration a concern. Internet access is increasingly becoming a dependency for critical infrastructure services. The New York Times recently published an article on the vulnerabilities and importance of the physical infrastructure that the Internet comprises. [1] As critical infrastructure owner/operators, government agencies, and the public are becoming more aware of its physical vulnerabilities, the necessity of studying and improving the resilience of Internet infrastructure to physical threats and vulnerabilities is growing. C1 [Thompson, Michael; Evans, Nathaniel] Argonne Natl Lab, Global Secur Sci, 9700 S Cass Ave, Argonne, IL 60439 USA. RP Thompson, M (reprint author), Argonne Natl Lab, Global Secur Sci, 9700 S Cass Ave, Argonne, IL 60439 USA. EM thompsonm@anl.gov; nevans@anl.gov 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 978-1-5090-2002-7 PY 2016 BP 146 EP 151 PG 6 WC Engineering, Electrical & Electronic SC Engineering GA BG6IA UT WOS:000390301800023 ER PT J AU Duan, S Lee, S Chinthavali, S Shankar, M AF Duan, Sisi Lee, Sangkeun Chinthavali, Supriya Shankar, Mallikarjun GP IEEE TI Reliable Communication Models in Interdependent Critical Infrastructure Networks SO 2016 RESILIENCE WEEK (RWS) LA English DT Proceedings Paper CT Resilience Week (RWS) CY AUG 16-18, 2016 CL Chicago, IL SP Idaho Natl Labs, Inst Elect & Elect Engineers, IEEE Ind Elect Soc ID SYSTEMS AB Modern critical infrastructure networks are becoming increasingly interdependent where the failures in one network may cascade to other dependent networks, causing severe widespread national-scale failures. A number of previous efforts have been made to analyze the resiliency and robustness of interdependent networks based on different models. However, communication network, which plays an important role in today's infrastructures to detect and handle failures, has attracted little attention in the interdependency studies, and no previous models have captured enough practical features in the critical infrastructure networks. In this paper, we study the interdependencies between communication network and other kinds of critical infrastructure networks with an aim to identify vulnerable components and design resilient communication networks. We propose several interdependency models that systematically capture various features and dynamics of failures spreading in critical infrastructure networks. We also discuss several research challenges in building reliable communication solutions to handle failures in these models. C1 [Duan, Sisi; Lee, Sangkeun; Chinthavali, Supriya; Shankar, Mallikarjun] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP Duan, S (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. EM duans@ornl.gov; lees4@ornl.gov; chinthavalis@ornl.gov; shankarm@ornl.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 978-1-5090-2002-7 PY 2016 BP 152 EP 157 PG 6 WC Engineering, Electrical & Electronic SC Engineering GA BG6IA UT WOS:000390301800024 ER PT J AU Chen, NC Poon, SS Ramakrishnan, L Aragon, CR AF Chen, Nan-Chen Poon, Sarah S. Ramakrishnan, Lavanya Aragon, Cecilia R. GP ACM TI Considering Time in Designing Large-Scale Systems for Scientific Computing SO ACM CONFERENCE ON COMPUTER-SUPPORTED COOPERATIVE WORK AND SOCIAL COMPUTING (CSCW 2016) LA English DT Proceedings Paper CT 19th ACM Conference on Computer-Supported Cooperative Work and Social Computing (CSCW) CY FEB 27-MAR 02, 2016 CL San Francisco, CA SP Assoc Comp Machinery, ACM Special Interest Grp Human Interact DE Time; temporality; HPC; high performance computing; collective time; temporal rhythms; scientific collaboration ID CYBERINFRASTRUCTURE; INFRASTRUCTURE; WORK AB High performance computing (HPC) has driven collaborative science discovery for decades. Exascale computing platforms, currently in the design stage, will be deployed around 2022. The next generation of supercomputers is expected to utilize radically different computational paradigms, necessitating fundamental changes in how the community of scientific users will make the most efficient use of these powerful machines. However, there have been few studies of how scientists work with exascale or close-to-exascale HPC systems. Time as a metaphor is so pervasive in the discussions and valuation of computing within the HPC community that it is worthy of close study. We utilize time as a lens to conduct an ethnographic study of scientists interacting with HPC systems. We build upon recent CSCW work to consider temporal rhythms and collective time within the HPC sociotechnical ecosystem and provide considerations for future system design. C1 [Chen, Nan-Chen; Aragon, Cecilia R.] Univ Washington, Dept Human Ctr Design & Engn, Seattle, WA 98195 USA. [Poon, Sarah S.; Ramakrishnan, Lavanya; Aragon, Cecilia R.] Lawrence Berkeley Natl Lab, Data Sci & Technol, Berkeley, CA USA. RP Chen, NC (reprint author), Univ Washington, Dept Human Ctr Design & Engn, Seattle, WA 98195 USA. EM nanchen@uw.edu; SSPoon@lbl.gov; LRamakrishnan@lbl.gov; aragon@uw.edu NR 51 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 978-1-4503-3592-8 PY 2016 BP 1535 EP 1547 DI 10.1145/2818048.2819988 PG 13 WC Computer Science, Cybernetics; Computer Science, Interdisciplinary Applications; Computer Science, Theory & Methods SC Computer Science GA BG5ZA UT WOS:000389809500122 ER PT J AU Coletta, M McLellan, R Waddington, A Sanz, S Gagnon, KJ Teat, SJ Brechin, EK Dalgarno, SJ AF Coletta, Marco McLellan, Ross Waddington, Amy Sanz, Sergio Gagnon, Kevin J. Teat, Simon J. Brechin, Euan K. Dalgarno, Scott J. TI Core expansion of bis-calix[4]arene-supported clusters SO CHEMICAL COMMUNICATIONS LA English DT Article ID SINGLE-MOLECULE MAGNETS; 3D AB Calix[4]arenes are excellent ligand supports for the synthesis of polymetallic clusters of transition and lanthanide metal ions, as well as 3d-4f ion mixtures. Bis-calix[4] arene, a recent addition to the calixarene family, forms structurally related cages that mirror the metal ion binding preferences of calix[4] arene. Here we show that stoichiometric control causes remarkable expansion in the cores of two known bis-calix[4] arene-supported clusters, with concomitant changes to the magnetic properties observed. C1 [Coletta, Marco; McLellan, Ross; Waddington, Amy; Dalgarno, Scott J.] Heriot Watt Univ, Inst Chem Sci, Edinburgh EH14 4AS, Midlothian, Scotland. [Sanz, Sergio; Brechin, Euan K.] Univ Edinburgh, EaStCHEM Sch Chem, David Brewster Rd, Edinburgh EH9 3FJ, Midlothian, Scotland. [Gagnon, Kevin J.; Teat, Simon J.] Lawrence Berkeley Natl Lab, Adv Light Source, Stn 11 3 1, 1 Cyclotron Rd, Berkeley, CA 94720 USA. RP Dalgarno, SJ (reprint author), Heriot Watt Univ, Inst Chem Sci, Edinburgh EH14 4AS, Midlothian, Scotland.; Brechin, EK (reprint author), Univ Edinburgh, EaStCHEM Sch Chem, David Brewster Rd, Edinburgh EH9 3FJ, Midlothian, Scotland. EM ebrechin@ed.ac.uk; S.J.Dalgarno@hw.ac.uk RI Sanz, Sergio/L-5819-2016; OI McLellan, Ross/0000-0001-9700-0258 FU EPSRC [EP/I03255X/1]; Office of Science, Office of Basic Energy Sciences, of the US Department of Energy [DE-AC02-05CH11231] FX We thank the EPSRC for financial support of this work under grant reference EP/I03255X/1. The Advanced Light Source is supported by the Director, Office of Science, Office of Basic Energy Sciences, of the US Department of Energy under contract no DE-AC02-05CH11231. Data for this paper are available via the following link: http://hdl.handle.net/10283/1927. NR 19 TC 0 Z9 0 U1 1 U2 1 PU ROYAL SOC CHEMISTRY PI CAMBRIDGE PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND SN 1359-7345 EI 1364-548X J9 CHEM COMMUN JI Chem. Commun. PY 2016 VL 52 IS 99 BP 14246 EP 14249 DI 10.1039/c6cc08059f PG 4 WC Chemistry, Multidisciplinary SC Chemistry GA EF6HS UT WOS:000390432300014 PM 27872919 ER PT S AU Benstead, J Tostevin, JA Escher, JE Burke, JT Hughes, RO Ota, S Casperson, RJ Thompson, IJ AF Benstead, J. Tostevin, J. A. Escher, J. E. Burke, J. T. Hughes, R. O. Ota, S. Casperson, R. J. Thompson, I. J. BE Kawano, T Chiba, S Paris, MW Talou, P TI Calculations of Compound Nucleus Spin-Parity Distributions Populated via the (p, t) Reaction in Support of Surrogate Neutron Capture Measurements SO CNR*15 - 5TH INTERNATIONAL WORKSHOP ON COMPOUND-NUCLEAR REACTIONS AND RELATED TOPICS SE EPJ Web of Conferences LA English DT Proceedings Paper CT 5th International Workshop on Compound-Nuclear Reactions and Related Topics (CNR) CY OCT 19-23, 2015 CL Tokyo, JAPAN ID FISSION CROSS-SECTIONS; MODEL; FRAGMENTATION AB The surrogate reaction method may be used to determine the cross section for neutron induced reactions not accessible through standard experimental techniques. This is achieved by creating the same compound nucleus as would be expected in the desired reaction, but through a different incident channel, generally a direct transfer reaction. So far, the surrogate technique has been applied with reasonable success to determine the fission cross section for a number of actinides, but has been less successful when applied to other reactions, e.g. neutron capture, due to a `spin-parity mismatch'. This mismatch, between the spin and parity distributions of the excited levels of the compound nucleus populated in the desired and surrogate channels, leads to differing decay probabilities and hence reduces the validity of using the surrogate method to infer the cross section in the desired channel. A greater theoretical understanding of the expected distribution of levels excited in both the desired and surrogate channels is therefore required in order to attempt to address this mismatch and allow the method to be utilised with greater confidence. Two neutron transfer reactions, e.g. (p,t), which allow the technique to be utilised for isotopes further removed from the line of stability, are the subject of this study. Results are presented for the calculated distribution of compound nucleus states populated in Zr-90, via the Zr-92(p,t)Zr-90 reaction, and are compared against measured data at an incident proton energy of 28.56 MeV. C1 [Benstead, J.] AWE Aldermaston, Reading RG7 4PR, Berks, England. [Benstead, J.; Tostevin, J. A.; Thompson, I. J.] Univ Surrey, Guildford GU2 7XH, Surrey, England. [Escher, J. E.; Burke, J. T.; Hughes, R. O.; Ota, S.; Casperson, R. J.; Thompson, I. J.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RP Benstead, J (reprint author), AWE Aldermaston, Reading RG7 4PR, Berks, England.; Benstead, J (reprint author), Univ Surrey, Guildford GU2 7XH, Surrey, England. EM james.benstead@awe.co.uk NR 25 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 2016 VL 122 AR 12002 DI 10.1051/epjconf/201612212002 PG 13 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA BG6BD UT WOS:000389877200054 ER PT S AU Escher, JE Tonchev, AP Burke, JT Bedrossian, P Casperson, RJ Cooper, N Hughes, RO Humby, P Ilieva, RS Ota, S Pietralla, N Scielzo, ND Werner, V AF Escher, J. E. Tonchev, A. P. Burke, J. T. Bedrossian, P. Casperson, R. J. Cooper, N. Hughes, R. O. Humby, P. Ilieva, R. S. Ota, S. Pietralla, N. Scielzo, N. D. Werner, V. BE Kawano, T Chiba, S Paris, MW Talou, P TI Compound-nuclear reactions with unstable nuclei: Constraining theory through innovative experimental approaches SO CNR*15 - 5TH INTERNATIONAL WORKSHOP ON COMPOUND-NUCLEAR REACTIONS AND RELATED TOPICS SE EPJ Web of Conferences LA English DT Proceedings Paper CT 5th International Workshop on Compound-Nuclear Reactions and Related Topics (CNR) CY OCT 19-23, 2015 CL Tokyo, JAPAN ID REACTION CROSS-SECTIONS; RESONANCE AB Cross sections for compound-nuclear reactions involving unstable targets are important for many applications, but can often not be measured directly. Several indirect methods have recently been proposed to determine neutron capture cross sections for unstable isotopes. We consider three approaches that aim at constraining statistical calculations of capture cross sections with data obtained from the decay of the compound nucleus relevant to the desired reaction. Each method produces this compound nucleus in a different manner (via a light-ion reaction, a photon-induced reaction, or beta-decay)and requires additional ingredients to yield the sought-after cross section. We give a brief outline of the approaches and employ preliminary results from recent measurements to illustrate the methods. We discuss the main advantages and challenges of each approach. C1 [Escher, J. E.; Tonchev, A. P.; Burke, J. T.; Bedrossian, P.; Casperson, R. J.; Hughes, R. O.; Ota, S.; Scielzo, N. D.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Cooper, N.; Humby, P.] Univ Richmond, Dept Phys, Richmond, VA 23173 USA. [Humby, P.; Ilieva, R. S.] Univ Surrey, Dept Phys, Guildford GU2 7XH, Surrey, England. [Ilieva, R. S.; Werner, V.] Yale Univ, Wright Nucl Struct Lab, New Haven, CT 06520 USA. [Pietralla, N.; Werner, V.] Tech Univ Darmstadt, Inst Kernphys, Schlossgartenstr 9, D-64289 Darmstadt, Germany. RP Escher, JE (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. EM escher1@llnl.gov NR 37 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 J9 EPJ WEB CONF PY 2016 VL 122 AR 12001 DI 10.1051/epjconf/201612212001 PG 12 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA BG6BD UT WOS:000389877200053 ER PT S AU Lee, HY Mosby, S Haight, RC White, MC AF Lee, H. Y. Mosby, S. Haight, R. C. White, M. C. BE Kawano, T Chiba, S Paris, MW Talou, P TI O-16(n,alpha) cross section investigation using LENZ instrument at LANSCE SO CNR*15 - 5TH INTERNATIONAL WORKSHOP ON COMPOUND-NUCLEAR REACTIONS AND RELATED TOPICS SE EPJ Web of Conferences LA English DT Proceedings Paper CT 5th International Workshop on Compound-Nuclear Reactions and Related Topics (CNR) CY OCT 19-23, 2015 CL Tokyo, JAPAN ID NUCLEAR-DATA AB Importance of studying the O-16(n,alpha) reaction is motivated by multiple nuclear applications. The Los Alamos Neutron Science Center (LANSCE) produces a white neutron spectrum ranging from thermal to several hundreds of MeV energies. We have recently developed the LENZ (Low Energy NZ-neutron induced charged particle detection) capability to measure high-precision (n,alpha) cross sections. In order to provide more reliable data, we have enhanced solid angle coverage, and improved signal-to-noise ratios and time-of-flight resolution by implementing digitizer waveform analysis. The LENZ was commissioned by studying the Co-59(n,alpha) reaction with neutron beams in early 2015. For the O-16(n,alpha) reaction, we investigate solid oxygen targets and make a relative measurement to a better known cross section, such as the Li-6(n,alpha) reaction in order to further reduce systematic uncertainty. We will discuss the progress of the O-16(n,alpha) study at LANSCE and the outlook for improving Hauser-Feshbah prediction on (n,p) reaction cross sections. C1 [Lee, H. Y.; Mosby, S.; Haight, R. C.] Los Alamos Natl Lab, Div Phys, P-27, Los Alamos, NM 87544 USA. [White, M. C.] Los Alamos Natl Lab, X Computat Phys Div, XCP 5, Los Alamos, NM USA. RP Lee, HY (reprint author), Los Alamos Natl Lab, Div Phys, P-27, Los Alamos, NM 87544 USA. EM hylee@lanl.gov NR 22 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 2016 VL 122 AR 05004 DI 10.1051/epjconf/201612205004 PG 9 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA BG6BD UT WOS:000389877200027 ER PT S AU Ota, S Burke, JT Casperson, RJ Escher, JE Hughes, RO Ressler, JJ Scielzo, ND Thompson, IJ Austin, RAE Abromeit, B Foley, NJ McCleskey, E McCleskey, M Park, HI Saastamoinen, A Ross, TJ AF Ota, S. Burke, J. T. Casperson, R. J. Escher, J. E. Hughes, R. O. Ressler, J. J. Scielzo, N. D. Thompson, I. J. Austin, R. A. E. Abromeit, B. Foley, N. J. McCleskey, E. McCleskey, M. Park, H. I. Saastamoinen, A. Ross, T. J. BE Kawano, T Chiba, S Paris, MW Talou, P TI Exploring the spin states of Zr-90 populated by (p, p'), (p, d), and (p, t) reactions SO CNR*15 - 5TH INTERNATIONAL WORKSHOP ON COMPOUND-NUCLEAR REACTIONS AND RELATED TOPICS SE EPJ Web of Conferences LA English DT Proceedings Paper CT 5th International Workshop on Compound-Nuclear Reactions and Related Topics (CNR) CY OCT 19-23, 2015 CL Tokyo, JAPAN ID CROSS-SECTIONS AB The Zr-90 nucleus was produced by three different reactions: Zr-90(p,p'), Zr-91(p,d), and Zr-92(p,t), and the spin-parity (J(pi)) population of the Zr-90 states produced by these reactions was studied to investigate the surrogate reaction approach, which aims at indirectly determining cross sections for compound-nuclear reactions involving unstable targets such as Zr-89(n,gamma). Discrete gamma-rays, associated with the de-excitation of Zr-90 and Zr-89, were measured in coincidence with light ions at Zr-90 excitation energies extending above the neutron separation energy. Low-lying states populated by (p,d) and (p,t) reactions agreed well with the previous measurements. The measured. transition systematics were used to gain insights into the J(pi) distribution of Zr-90 around the neutron separation energy and it was found that the (p,p') reaction preferentially produces lower J states than (p,d) and (p,t) reactions in the studied energy region. C1 [Ota, S.; Burke, J. T.; Casperson, R. J.; Escher, J. E.; Hughes, R. O.; Ressler, J. J.; Scielzo, N. D.; Thompson, I. J.] Lawrence Livermore Natl Lab, Phys & Life Sci Directorate, Livermore, CA 94551 USA. [Austin, R. A. E.] St Marys Coll, Halifax, NS, Canada. [Abromeit, B.; Foley, N. J.; McCleskey, E.; McCleskey, M.; Park, H. I.; Saastamoinen, A.] Texas A&M Univ, Inst Cyclotron, College Stn, TX 77840 USA. [Ross, T. J.] Univ Kentucky, Dept Chem, Lexington, KY 40506 USA. RP Ota, S (reprint author), Lawrence Livermore Natl Lab, Phys & Life Sci Directorate, Livermore, CA 94551 USA. EM ota2@llnl.gov NR 14 TC 0 Z9 0 U1 2 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 J9 EPJ WEB CONF PY 2016 VL 122 AR 12003 DI 10.1051/epjconf/201612212003 PG 12 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA BG6BD UT WOS:000389877200055 ER PT S AU Paris, MW Hale, GM AF Paris, Mark W. Hale, Gerald M. BE Kawano, T Chiba, S Paris, MW Talou, P TI Spectra for the A=6 reactions calculated from a three-body resonance model SO CNR*15 - 5TH INTERNATIONAL WORKSHOP ON COMPOUND-NUCLEAR REACTIONS AND RELATED TOPICS SE EPJ Web of Conferences LA English DT Proceedings Paper CT 5th International Workshop on Compound-Nuclear Reactions and Related Topics (CNR) CY OCT 19-23, 2015 CL Tokyo, JAPAN AB We develop a resonance model of the transition matrix for three-body breakup reactions of the A = 6 system and present calculations for the nucleon observed spectra, which are important for inertial confinement fusion and Big Bang nucleosynthesis (BBN). The model is motivated by the Faddeev approach where the form of the T matrix is written as a sum of the distinct Jacobi coordinate systems corresponding to particle configurations (alpha, n-n) and (n, n-alpha) to describe the final state. The structure in the spectra comes from the resonances of the two-body subsystems of the three-body final state, namely the singlet (T = 1) nucleon-nucleon (NN) anti-bound resonance, and the N alpha resonances designated the ground state (J(pi) = 3/2(-)) and first excited state (J(pi) = 1/2(-))of the A = 5 systems He-5 and Li-5. These resonances are described in terms of single-level, single-channel R-matrix parameters that are taken from analyses of NN and N alpha scattering data. While the resonance parameters are approximately charge symmetric, external charge-dependent effects are included in the penetrabilities, shifts, and hard-sphere phases, and in the level energies to account for internal Coulomb differences. The shapes of the resonance contributions to the spectrum are fixed by other, two-body data and the only adjustable parameters in the model are the combinatorial amplitudes for the compound system. These are adjusted to reproduce the observed nucleon spectra from measurements at the Omega and NIF facilities. We perform a simultaneous, least-squares fit of the tt neutron spectra and the (HeHe)-He-3-He-3 proton spectra. Using these amplitudes we make a prediction of the alpha spectra for both reactions at low energies. Significant differences in the tt and (HeHe)-He-3-He-3 spectra are due to Coulomb effects. C1 [Paris, Mark W.; Hale, Gerald M.] Los Alamos Natl Lab, Theoret Div T 2, Los Alamos, NM 87545 USA. RP Paris, MW (reprint author), Los Alamos Natl Lab, Theoret Div T 2, Los Alamos, NM 87545 USA. EM mparis@lanl.gov; ghale@lanl.gov OI Paris, Mark/0000-0003-0471-7896 NR 4 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 J9 EPJ WEB CONF PY 2016 VL 122 AR 08002 DI 10.1051/epjconf/201612208002 PG 7 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA BG6BD UT WOS:000389877200037 ER PT S AU Stetcu, I Talou, P Kawano, T AF Stetcu, I. Talou, P. Kawano, T. BE Kawano, T Chiba, S Paris, MW Talou, P TI Neutron-induced fission: properties of prompt neutron and gamma rays as a function of incident energy SO CNR*15 - 5TH INTERNATIONAL WORKSHOP ON COMPOUND-NUCLEAR REACTIONS AND RELATED TOPICS SE EPJ Web of Conferences LA English DT Proceedings Paper CT 5th International Workshop on Compound-Nuclear Reactions and Related Topics (CNR) CY OCT 19-23, 2015 CL Tokyo, JAPAN ID MODEL AB We have applied the Hauser-Feshbach statistical theory, in a Monte-Carlo implementation, to the de-excitation of fission fragments, obtaining a reasonable description of the characteristics of neutrons and gamma rays emitted before beta decays toward stability. Originally implemented for the spontaneous fission of Cf-252 and the neutron-induced fission of U-235 and Pu-239 at thermal neutron energy, in this contribution we discuss the extension of the formalism to incident neutron energies up to 20 MeV. For the emission of pre-fission neutrons, at incident energies beyond second-chance fission, we take into account both the pre-equilibrium and statistical pre-fission components. Phenomenological parameterizations of mass, charge and TKE yields are used to obtain the initial conditions for the fission fragments that subsequently decay via neutron and. emissions. We illustrate this approach for 239Pu(n,f). C1 [Stetcu, I.; Talou, P.; Kawano, T.] Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. RP Stetcu, I (reprint author), Los Alamos Natl Lab, Div Theoret, Los Alamos, NM 87545 USA. EM stetcu@lanl.gov NR 20 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 2016 VL 122 AR 01012 DI 10.1051/epjconf/201612201012 PG 7 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA BG6BD UT WOS:000389877200012 ER PT S AU Talou, P Lynn, JE Kawano, T Mosby, S Couture, A Bouland, O AF Talou, Patrick Lynn, J. E. Kawano, T. Mosby, S. Couture, A. Bouland, O. BE Kawano, T Chiba, S Paris, MW Talou, P TI Assessing the role of the (n,gamma f) process in the low-energy fission of actinides SO CNR*15 - 5TH INTERNATIONAL WORKSHOP ON COMPOUND-NUCLEAR REACTIONS AND RELATED TOPICS SE EPJ Web of Conferences LA English DT Proceedings Paper CT 5th International Workshop on Compound-Nuclear Reactions and Related Topics (CNR) CY OCT 19-23, 2015 CL Tokyo, JAPAN AB We review the role of the (n,gamma f) process in the low-energy neutron-induced fission reaction of Pu-239. Recent measurements of the average total gamma-ray energy released in this reaction were performed with the Detector for Advanced Neutron Capture Experiments (DANCE) at Los Alamos. Significant fluctuations of this quantity in the resonance region below 100 eV can be interpreted by invoking the presence of the indirect (n,gamma f) process. Modern calculations of the probability for such an event to occur are presented. C1 [Talou, Patrick; Lynn, J. E.; Kawano, T.] Los Alamos Natl Lab, Nucl Phys Grp, Div Theoret, Los Alamos, NM 87545 USA. [Mosby, S.; Couture, A.] Los Alamos Natl Lab, Div Phys, P 27, Los Alamos, NM USA. [Bouland, O.] CEA, DEN, DER, SPRC,LEPh, F-13108 St Paul Les Durance, France. RP Talou, P (reprint author), Los Alamos Natl Lab, Nucl Phys Grp, Div Theoret, Los Alamos, NM 87545 USA. EM talou@lanl.gov 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 J9 EPJ WEB CONF PY 2016 VL 122 AR 01013 DI 10.1051/epjconf/201612201013 PG 8 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA BG6BD UT WOS:000389877200013 ER PT S AU Wu, CY Chyzh, A Kwan, E Henserson, RA Bredeweg, TA Haight, RC Hayes-Sterbenz, AC Lee, HY O'Donnell, JM Ullmann, JL AF Wu, C. Y. Chyzh, A. Kwan, E. Henserson, R. A. Bredeweg, T. A. Haight, R. C. Hayes-Sterbenz, A. C. Lee, H. Y. O'Donnell, J. M. Ullmann, J. L. BE Kawano, T Chiba, S Paris, MW Talou, P TI Total prompt gamma-ray emission in fission SO CNR*15 - 5TH INTERNATIONAL WORKSHOP ON COMPOUND-NUCLEAR REACTIONS AND RELATED TOPICS SE EPJ Web of Conferences LA English DT Proceedings Paper CT 5th International Workshop on Compound-Nuclear Reactions and Related Topics (CNR) CY OCT 19-23, 2015 CL Tokyo, JAPAN ID DANCE AB The total prompt gamma-ray energy distributions for the neutron-induced fission of U-235, Pu-239,Pu-241 at incident neutron energy of 0.025 eV - 100 keV, and the spontaneous fission of Cf-252 were measured using the Detector for Advanced Neutron Capture Experiments ( DANCE) array in coincidence with the detection of fission fragments by a parallel-plate avalanche counter. DANCE is a highly segmented, highly efficient 4 pi gamma-ray calorimeter. Corrections were made to the measured distribution by unfolding the two-dimension spectrum of total gamma-ray energy vs multiplicity using a simulated DANCE response matrix. The mean values of the total prompt gamma-ray energy, determined from the unfolded distributions, are similar to 20% higher than those derived from measurements using single gamma-ray detector for all the fissile nuclei studied. This raises serious concern on the validity of the mean total prompt gamma-ray energy obtained from the product of mean values for both prompt gamma-ray energy and multiplicity. C1 [Wu, C. Y.; Chyzh, A.; Kwan, E.; Henserson, R. A.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Chyzh, A.] North Carolina State Univ, Raleigh, NC 27695 USA. [Kwan, E.] Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA. [Bredeweg, T. A.; Haight, R. C.; Hayes-Sterbenz, A. C.; Lee, H. Y.; O'Donnell, J. M.; Ullmann, J. L.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Wu, CY (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. EM wu24@llnl.gov NR 24 TC 0 Z9 0 U1 2 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 J9 EPJ WEB CONF PY 2016 VL 122 AR 01011 DI 10.1051/epjconf/201612201011 PG 6 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA BG6BD UT WOS:000389877200011 ER PT S AU Aksanli, B Venkatesh, J Monga, I Rosing, TS AF Aksanli, Baris Venkatesh, Jagannathan Monga, Inder Rosing, Tajana Simunic BE Lassig, J Kersting, K Morik, K TI Renewable Energy Prediction for Improved Utilization and Efficiency in Datacenters and Backbone Networks SO COMPUTATIONAL SUSTAINABILITY SE Studies in Computational Intelligence LA English DT Article; Book Chapter AB Datacenters are one of the important global energy consumers and carbon producers. However, their tight service level requirements prevent easy integration with highly variable renewable energy sources. Short-term green energy prediction can mitigate this variability. In this work, we first explore the existing short-term solar and wind energy prediction methods, and then leverage prediction to allocate and migrate workloads across geographically distributed datacenters to reduce brown energy consumption costs. Unlike previous works, we also study the impact of wide area networks (WAN) on datacenters, and investigate the use of green energy prediction to power WANs. Finally, we present two different studies connecting datacenters and WANs: the case where datacenter operators own and manage their WAN and the case where datacenters lease networks from WAN providers. The results show that prediction enables up to 90% green energy utilization, a 3x improvement over the existing methods. The cost minimization algorithm reduces expenses by up to 16% and increases performance by 27% when migrating workloads across datacenters. Furthermore, the savings increase up to 30% compared with no migration when servers are made energy-proportional. Finally, in the case of leasing the WAN, energy proportionality in routers can increase the profit of network providers by 1.6x. C1 [Aksanli, Baris; Venkatesh, Jagannathan; Rosing, Tajana Simunic] Univ Calif San Diego, La Jolla, CA 92093 USA. [Monga, Inder] Lawrence Berkeley Natl Lab, Energy Sci Network, Berkeley, CA USA. RP Aksanli, B (reprint author), Univ Calif San Diego, La Jolla, CA 92093 USA. EM baksanli@ucsd.edu; jvenkate@ucsd.edu; imonga@es.net; tajana@ucsd.edu NR 44 TC 0 Z9 0 U1 0 U2 0 PU SPRINGER-VERLAG BERLIN PI BERLIN PA HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY SN 1860-949X BN 978-3-319-31858-5; 978-3-319-31856-1 J9 STUD COMPUT INTELL PY 2016 VL 645 BP 47 EP 74 DI 10.1007/978-3-319-31858-5_4 D2 10.1007/978-3-319-31858-5 PG 28 WC Computer Science, Artificial Intelligence; GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY SC Computer Science; Science & Technology - Other Topics GA BG1XM UT WOS:000387134900004 ER PT J AU Romanus, M Zhang, F Jin, T Sun, Q Bui, H Parashar, M Choi, J Janhunen, S Hager, R Klasky, S Chang, CS Rodero, I AF Romanus, Melissa Zhang, Fan Jin, Tong Sun, Qian Bui, Hoang Parashar, Manish Choi, Jong Janhunen, Saloman Hager, Robert Klasky, Scott Chang, Choong-Seock Rodero, Ivan GP ACM TI Persistent Data Staging Services for Data Intensive In-situ Scientific Workflows SO DIDC'16: PROCEEDINGS OF THE ACM INTERNATIONAL WORKSHOP ON DATA-INTENSIVE DISTRIBUTED COMPUTING LA English DT Proceedings Paper CT 6th ACM International Workshop on Data-Intensive Distributed Computing (DIDC) CY JUN 01, 2016 CL Kyoto, JAPAN SP ACM, ACM SIGARCH, Univ Arizona AB Scientific simulation workflows executing on very large scale computing systems are essential modalities for scientific investigation. The increasing scales and resolution of these simulations provide new opportunities for accurately modeling complex natural and engineered phenomena. However, the increasing complexity necessitates managing, transporting, and processing unprecedented amounts of data, and as a result, researchers are increasingly exploring data-staging and in-situ workflows to reduce data movement and data-related overheads. However, as these workflows become more dynamic in their structures and behaviors, data staging and in-situ solutions must evolve to support new requirements. In this paper, we explore how the service-oriented concept can be applied to extreme-scale in-situ workflows. Specifically, we explore persistent data staging as a service and present the design and implementation of DataSpaces as a Service, a service-oriented data staging framework. We use a dynamically coupled fusion simulation workflow to illustrate the capabilities of this framework and evaluate its performance and scalability. C1 [Romanus, Melissa; Zhang, Fan; Jin, Tong; Sun, Qian; Bui, Hoang; Parashar, Manish; Rodero, Ivan] Rutgers State Univ, RDI2, Piscataway, NJ 08854 USA. [Choi, Jong; Janhunen, Saloman; Klasky, Scott] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Hager, Robert; Chang, Choong-Seock] Princeton Plasma Phys Lab, Princeton, NJ 08540 USA. RP Romanus, M; Zhang, F; Jin, T; Sun, Q; Bui, H; Parashar, M; Rodero, I (reprint author), Rutgers State Univ, RDI2, Piscataway, NJ 08854 USA. EM melissa@cac.rutgers.edu; zhangfan@cac.rutgers.edu; tjin@cac.rutgers.edu; qiansun@cac.rutgers.edu; H-Bui@wiu.edu; parashar@rutgers.edu; choi@ornl.gov; jjanhune@pppl.gov; rhager@pppl.gov; klasky@ornl.gov; cschang@pppl.gov; irodero@rutgers.edu OI Romanus, Melissa/0000-0001-9461-4828 NR 28 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 978-1-4503-4352-7 PY 2016 BP 37 EP 44 DI 10.1145/2912152.2912157 PG 8 WC Computer Science, Theory & Methods SC Computer Science GA BG6ID UT WOS:000390302200006 ER PT J AU Turcotte, M Moore, J Heardt, N McPhall, A AF Turcotte, Melissa Moore, Juston Heardt, Nick McPhall, Aaron BE Zhou, L Kaati, L Mao, W Wang, GA TI Poisson Factorization for Peer-Based Anomaly Detection SO IEEE INTERNATIONAL CONFERENCE ON INTELLIGENCE AND SECURITY INFORMATICS: CYBERSECURITY AND BIG DATA LA English DT Proceedings Paper CT 14th IEEE International Conference on Intelligence and Security Informatics - Cybersecurity and Big Data (IEEE ISI) CY SEP 28-30, 2016 CL Tucson, AZ SP IEEE, IEEE Intelligent Transportat Syst Soc, Univ Arizona, Off Vice President Res, Univ Arizona, Elle Coll Management, Univ Arizona, Dept Management Informat Syst, Univ Arizona, Artificial Intelligence Lab, Natl Sci Fdn AB Anomaly detection systems are a promising tool to identify compromised user credentials and malicious insiders in enterprise networks. Most existing approaches for modelling user behaviour rely on either independent observations for each user or on pre-defined user peer groups. A method is proposed based on recommender system algorithms to learn overlapping user peer groups and to use this learned structure to detect anomalous activity. Results analysing the authentication and process-running activities of thousands of users show that the proposed method can detect compromised user accounts during a red team exercise. C1 [Turcotte, Melissa; Moore, Juston; McPhall, Aaron] Los Alamos Natl Lab, Adv Res Cyber Syst, Los Alamos, NM 87545 USA. [Heardt, Nick] Imperial Coll London, London, England. [Heardt, Nick] Univ Bristol, Heilbronn Inst Math Res, Bristol, Avon, England. RP Turcotte, M (reprint author), Los Alamos Natl Lab, Adv Res Cyber Syst, Los Alamos, NM 87545 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 978-1-5090-3865-7 PY 2016 BP 208 EP 210 PG 3 WC Computer Science, Theory & Methods; Engineering, Electrical & Electronic SC Computer Science; Engineering GA BG6EH UT WOS:000390129600039 ER PT J AU Awad, RA Sayre, KD AF Awad, Rima Asmar Sayre, Kirk D. BE Zhou, L Kaati, L Mao, W Wang, GA TI Automatic Clustering of Malware Variants SO IEEE INTERNATIONAL CONFERENCE ON INTELLIGENCE AND SECURITY INFORMATICS: CYBERSECURITY AND BIG DATA LA English DT Proceedings Paper CT 14th IEEE International Conference on Intelligence and Security Informatics - Cybersecurity and Big Data (IEEE ISI) CY SEP 28-30, 2016 CL Tucson, AZ SP IEEE, IEEE Intelligent Transportat Syst Soc, Univ Arizona, Off Vice President Res, Univ Arizona, Elle Coll Management, Univ Arizona, Dept Management Informat Syst, Univ Arizona, Artificial Intelligence Lab, Natl Sci Fdn AB The emergence of malware creation tools in recent years has facilitated the creation of new variations of existing malware instances. Typically, Anti-Virus companies process new malware instances manually to determine their maliciousness and generate their signatures. However, with the overwhelming number of new malware variants that are created automatically to evade pattern based detection, manual analysis is becoming a bottleneck that hinders the process of responding to new threats. This paper proposes a novel method to automatically cluster malware variants into malware families based on the structured control flow graphs of the malware instances. Our final results demonstrate high effectiveness in terms of accuracy, an average of % 94 accuracy, and speed in clustering malware variants. C1 [Awad, Rima Asmar; Sayre, Kirk D.] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP Awad, RA (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. EM awadrl@ornl.gov; sayrekd@ornl.gov 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 978-1-5090-3865-7 PY 2016 BP 298 EP 303 PG 6 WC Computer Science, Theory & Methods; Engineering, Electrical & Electronic SC Computer Science; Engineering GA BG6EH UT WOS:000390129600061 ER PT J AU Graham, CF Solter, D Gearhart, JD Nadeau, JH Knowles, BB AF Graham, Christopher F. Solter, Davor Gearhart, John D. Nadeau, Joseph H. Knowles, Barbara B. TI Honoring the work and life of Leroy C. Stevens. A symposium as part of the International Stem Cell Initiative Workshop SO INTERNATIONAL JOURNAL OF DEVELOPMENTAL BIOLOGY LA English DT Article DE Leroy C. Stevens; stem cell; PSC; human therapy; tumor ID PRIMORDIAL GERM-CELLS; CONGENITAL TESTICULAR TERATOMAS; CHROMOSOME SUBSTITUTION STRAINS; TERATOCARCINOMA CELLS; COMPLEX TRAITS; GENETIC ARCHITECTURE; TUMOR SUSCEPTIBILITY; MODIFIER GENES; MOUSE EMBRYOS; MICE AB PREAMBLE In 2016, a symposium was convened in Leroy C. Stevens' honor, in association with a meeting of the International Stem Cell Initiative (ISCI). ISCI, funded internationally, is composed of a group of similar to 100 scientists from many countries, under the leadership of Peter Andrews, who have worked together to characterize a significant number of human pluripotent stem cell lines, to monitor their genetic stability and their differentiation into mature cell types and tissues in vitro and in vivo. Those at the ISCI meeting puzzled through one of the thorniest problems in the therapeutic use of the differentiated derivatives of pluripotent stem cells for human therapy; namely, pluripotent stem cells can differentiate into any cell type in the adult organism, but they also have the capacity for unlimited self-renewal, hence if mutated they may have tumorigenic potential. The meeting considered how these cells might become genetically or epigenetically abnormal and how the safety of these cells for human therapeutic uses could be assessed and assured. The symposium was an opportunity to pay tribute to Leroy Stevens and to the basic science origins of this newest aspect of regenerative medicine. It was a time to reflect on the past and on how it can influence the future of our field. C1 [Graham, Christopher F.] Univ Oxford, Dept Zool, Oxford, England. [Solter, Davor] Max Planck Gesell, Munich, Germany. [Gearhart, John D.] Univ Penn, Philadelphia, PA 19104 USA. [Nadeau, Joseph H.] Pacific Northwest Res Inst, Seattle, WA USA. [Knowles, Barbara B.] Jackson Lab, 600 Main St, Bar Harbor, ME 04609 USA. RP Knowles, BB (reprint author), Jackson Lab, 600 Main St, Bar Harbor, ME 04609 USA. EM bbk4@me.com FU International Stem Cell Forum; UK Regenerative Medicine Platform; Jackson Laboratory; Stem Cell Technologies; Thermofisher Scientific; Ajinomoto Corporation FX The authors would like to express their appreciation to The International Stem Cell Forum, The UK Regenerative Medicine Platform, The Jackson Laboratory, Stem Cell Technologies, Thermofisher Scientific and Ajinomoto Corporation for sponsorship of this symposium. NR 65 TC 0 Z9 0 U1 0 U2 0 PU UNIV BASQUE COUNTRY UPV-EHU PRESS PI BILBAO PA PO BOX 1397, BILBAO, BIZKAIA E-48080, SPAIN SN 0214-6282 EI 1696-3547 J9 INT J DEV BIOL JI Int. J. Dev. Biol. PY 2016 VL 60 IS 10-12 BP 327 EP 336 DI 10.1387/ijdb.160420bk PG 10 WC Developmental Biology SC Developmental Biology GA EF4QJ UT WOS:000390316800002 PM 28000904 ER PT S AU Geske, M Jasper, M Steffen, B Howar, F Schordan, M van de Pol, J AF Geske, Maren Jasper, Marc Steffen, Bernhard Howar, Falk Schordan, Markus van de Pol, Jaco BE Margaria, T Steffen, B TI RERS 2016: Parallel and Sequential Benchmarks with Focus on LTL Verification SO LEVERAGING APPLICATIONS OF FORMAL METHODS, VERIFICATION AND VALIDATION: DISCUSSION, DISSEMINATION, APPLICATIONS, ISOLA 2016, PT II SE Lecture Notes in Computer Science LA English DT Proceedings Paper CT 7th International Symposium on Leveraging Applications of Formal Methods, Verification and Validation (ISoLA) CY OCT 10-14, 2016 CL Corfu, GREECE AB The 5th challenge of Rigorous Examination of Reactive Systems (RERS 2016) once again provided generated and tailored benchmarks suited for comparing the effectiveness of automatic software verifiers. RERS is the only software verification challenge that features problems with linear temporal logic (LTL) properties in larger sizes that are available in different programming languages. This paper describes the revised rules and the refined profile of the challenge, which lowers the entry hurdle for new participants. The challenge format with its three tracks, their benchmarks, and the related LTL and reachability properties are explained. Special emphasis is put on changes that were implemented in RERS - compared to former RERS challenges. The competition comprised 18 sequential and 20 parallel benchmarks. The 20 benchmarks from the new parallel track feature LTL properties and a compact representation as labeled transition systems and Promela code. C1 [Geske, Maren; Jasper, Marc; Steffen, Bernhard] TU Dortmund Univ, Programming Syst, D-44227 Dortmund, Germany. [Jasper, Marc; Schordan, Markus] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. [Howar, Falk] Tech Univ Clausthal, Clausthal Zellerfeld, Germany. [van de Pol, Jaco] Univ Twente, Formal Methods & Tools, Enschede, Netherlands. RP Geske, M (reprint author), TU Dortmund Univ, Programming Syst, D-44227 Dortmund, Germany. EM maren.geske@cs.tu-dortmund.de; marc.jasper@cs.tu-dortmund.de; steffen@cs.tu-dortmund.de; falk.howar@tu-clausthal.de; schordan1@llnl.gov; J.C.vandePol@utwente.nl NR 16 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 978-3-319-47169-3; 978-3-319-47168-6 J9 LECT NOTES COMPUT SC PY 2016 VL 9953 BP 787 EP 803 DI 10.1007/978-3-319-47169-3_59 PG 17 WC Computer Science, Software Engineering; Computer Science, Theory & Methods SC Computer Science GA BG6CH UT WOS:000389942800063 ER PT S AU Schordan, M Beyer, D Lundberg, J AF Schordan, Markus Beyer, Dirk Lundberg, Jonas BE Margaria, T Steffen, B TI Evaluation and Reproducibility of Program Analysis and Verification (Track Introduction) SO LEVERAGING APPLICATIONS OF FORMAL METHODS, VERIFICATION AND VALIDATION: FOUNDATIONAL TECHNIQUES, PT I SE Lecture Notes in Computer Science LA English DT Proceedings Paper CT 7th International Symposium on Leveraging Applications of Formal Methods, Verification and Validation (ISoLA) CY OCT 10-14, 2016 CL Corfu, GREECE C1 [Schordan, Markus] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [Beyer, Dirk] Ludwig Maximilians Univ Munchen, Munich, Germany. [Lundberg, Jonas] Linnaeus Univ, Vaxjo, Sweden. RP Schordan, M (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. NR 15 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 978-3-319-47166-2; 978-3-319-47165-5 J9 LECT NOTES COMPUT SC PY 2016 VL 9952 BP 191 EP 194 DI 10.1007/978-3-319-47166-2_13 PG 4 WC Computer Science, Software Engineering SC Computer Science GA BG6CE UT WOS:000389939100013 ER PT S AU Jasper, M Schordan, M AF Jasper, Marc Schordan, Markus BE Margaria, T Steffen, B TI Multi-core Model Checking of Large-Scale Reactive Systems Using Different State Representations SO LEVERAGING APPLICATIONS OF FORMAL METHODS, VERIFICATION AND VALIDATION: FOUNDATIONAL TECHNIQUES, PT I SE Lecture Notes in Computer Science LA English DT Proceedings Paper CT 7th International Symposium on Leveraging Applications of Formal Methods, Verification and Validation (ISoLA) CY OCT 10-14, 2016 CL Corfu, GREECE ID SOFTWARE-VERIFICATION; 2013 CHALLENGES; ABSTRACTION; PROGRAMS AB Model checking software systems allows to formally verify that their behavior adheres to certain properties. The state explosion problem presents a major obstacle to model checking due to the implied large concrete state spaces. We present an approach to efficient model checking of large-scale reactive systems that aims at a trade-off between the number of verifiable and falsifiable properties and the required analysis time. Our two-phase approach is based on a parallel state space exploration with explicit states for falsifying linear temporal logic (LTL) properties, and an abstract phase reasoning on the entire state space for verifying LTL properties. This two-phase approach enabled us to win the Rigorous Examination of Reactive Systems Challenge (RERS) in 2014 and 2015. We present a detailed evaluation based on 30 different RERS benchmarks regarding both our verification results and the obtainable parallel speedup. C1 [Jasper, Marc; Schordan, Markus] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. [Jasper, Marc] TU Dortmund Univ, D-44227 Dortmund, Germany. RP Jasper, M (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94551 USA.; Jasper, M (reprint author), TU Dortmund Univ, D-44227 Dortmund, Germany. EM jasper3@llnl.gov; schordan1@llnl.gov NR 31 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 978-3-319-47166-2; 978-3-319-47165-5 J9 LECT NOTES COMPUT SC PY 2016 VL 9952 BP 212 EP 226 DI 10.1007/978-3-319-47166-2_15 PG 15 WC Computer Science, Software Engineering SC Computer Science GA BG6CE UT WOS:000389939100015 ER PT J AU Li, S Huang, PC Banks, D DePalma, M Elshaarany, A Hemmert, S Rodrigues, A Ruppel, E Wang, YT Ang, J Jacob, B AF Li, Shang Huang, Po-Chun Banks, David DePalma, Max Elshaarany, Ahmed Hemmert, Scott Rodrigues, Arun Ruppel, Emily Wang, Yitian Ang, Jim Jacob, Bruce GP ACM TI Low Latency, High Bisection-Bandwidth Networks for Exascale Memory Systems SO MEMSYS 2016: PROCEEDINGS OF THE INTERNATIONAL SYMPOSIUM ON MEMORY SYSTEMS LA English DT Proceedings Paper CT International Symposium on Memory Systems (MEMSYS) CY OCT 03-06, 2016 CL Washington, DC SP Sandia Natl Labs, Intel, Rambus, ARM, Lawrence Livermore Natl Lab, Memory Syst LLC, Univ Maryland, AMD, Assoc Comp Machinery DE network topology; supercomputer design; SST ID HIGH-PERFORMANCE AB Data movement is the Iimiting factor in modern supercom-puting systems, as system performance drops by several orders of magnitude whenever applications need to move data. Therefore, focusing on low latency (e.g., low diameter) networks that also have high bisection bandwidth is critical. We present a cost/performance analysis of a wide range of high-radix interconnect topologies, in terms of bisection widths, average hop counts, and the port costs required to achieve those metrics. We study variants of traditional topologies as well as one novel topology. We identify several designs that have reasonable port costs and can scale to hundreds of thousands, perhaps millions, of nodes with maximum latencies as low as two network hops and high bisection bandwidths. C1 [Li, Shang; Huang, Po-Chun; Banks, David; DePalma, Max; Elshaarany, Ahmed; Ruppel, Emily; Wang, Yitian; Jacob, Bruce] Univ Maryland, Elect & Comp Engn, College Pk, MD 20742 USA. [Hemmert, Scott; Rodrigues, Arun; Ang, Jim] Sandia Natl Labs, Scalable Comp Architectures, Albuquerque, NM USA. RP Li, S (reprint author), Univ Maryland, Elect & Comp Engn, College Pk, MD 20742 USA. EM shangli@umd.edu; hpcalex@umd.edu; blj@umd.edu; kshemme@sandia.gov; afrodri@sandia.gov; jaang@sandia.gov NR 21 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 978-1-4503-4305-3 PY 2016 BP 62 EP 73 DI 10.1145/2989081.298913 PG 12 WC Computer Science, Hardware & Architecture SC Computer Science GA BG6HD UT WOS:000390297400007 ER PT J AU Hammond, SD Rodrigues, AF Voskuilen, GR AF Hammond, Simon D. Rodrigues, Arun F. Voskuilen, Gwendolyn R. GP ACM TI Multi-Level Memory Policies: What You Add Is More Important Than What You Take Out SO MEMSYS 2016: PROCEEDINGS OF THE INTERNATIONAL SYMPOSIUM ON MEMORY SYSTEMS LA English DT Proceedings Paper CT International Symposium on Memory Systems (MEMSYS) CY OCT 03-06, 2016 CL Washington, DC SP Sandia Natl Labs, Intel, Rambus, ARM, Lawrence Livermore Natl Lab, Memory Syst LLC, Univ Maryland, AMD, Assoc Comp Machinery AB Multi-Level Memory (MLM) will be an increasingly common organization for main memory. Hybrid main memories that combine conventional DDR and "fast" memory will allow higher peak bandwidth at an attainable cost. However, the chief hurdle for MLM systems is the management of data placement. While user-directed placement may work for some applications, it imposes a heavy burden on the programmer. To avoid this burden while still benefiting from MLM, we propose a number of automated management policies. Our results show that several possible policies offer performance and implementation trade offs. Also, unlike conventional cache or paged memory policies, the addition policy is much more important than the replacement policy. C1 [Hammond, Simon D.; Rodrigues, Arun F.; Voskuilen, Gwendolyn R.] Sandia Natl Labs, Ctr Res Comp, Albuquerque, NM 87185 USA. RP Hammond, SD (reprint author), Sandia Natl Labs, Ctr Res Comp, Albuquerque, NM 87185 USA. EM sdhammo@sandia.gov; afrodri@sandia.gov; grvosku@sandia.gov NR 15 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 978-1-4503-4305-3 PY 2016 BP 88 EP 93 DI 10.1145/2989081.2989117 PG 6 WC Computer Science, Hardware & Architecture SC Computer Science GA BG6HD UT WOS:000390297400009 ER PT J AU Voskuilen, G Rodrigues, AF Hammond, SD AF Voskuilen, Gwendolyn Rodrigues, Arun F. Hammond, Simon D. GP ACM TI Analyzing allocation behavior for multi-level memory SO MEMSYS 2016: PROCEEDINGS OF THE INTERNATIONAL SYMPOSIUM ON MEMORY SYSTEMS LA English DT Proceedings Paper CT International Symposium on Memory Systems (MEMSYS) CY OCT 03-06, 2016 CL Washington, DC SP Sandia Natl Labs, Intel, Rambus, ARM, Lawrence Livermore Natl Lab, Memory Syst LLC, Univ Maryland, AMD, Assoc Comp Machinery DE Multi-level memory; application analysis AB Managing multi-level memories will require different policies from those used for cache hierarchies, as memory technologies differ in latency, bandwidth, and volatility. To this end we analyze application data allocations and main memory accesses to determine whether an application-driven approach to managing a multi-level memory system comprising stacked and conventional DRAM is viable. Our early analysis shows that the approach is viable, but some applications may require dynamic allocations (i.e., migration) while others are amenable to static allocation. C1 [Voskuilen, Gwendolyn; Rodrigues, Arun F.; Hammond, Simon D.] Sandia Natl Labs, Ctr Res Comp, POB 5800, Albuquerque, NM 87185 USA. RP Voskuilen, G (reprint author), Sandia Natl Labs, Ctr Res Comp, POB 5800, Albuquerque, NM 87185 USA. EM grvosku@sandia.gov; afrodri@sandia.gov; sdhammo@sandia.gov NR 8 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 978-1-4503-4305-3 PY 2016 BP 204 EP 207 DI 10.1145/2989081.2989116 PG 4 WC Computer Science, Hardware & Architecture SC Computer Science GA BG6HD UT WOS:000390297400022 ER PT J AU Bheda, RA Conte, TM Vetter, JS AF Bheda, Rishiraj A. Conte, Thomas M. Vetter, Jeffrey S. GP ACM TI Improving DRAM Bandwidth Utilization with MLP-Aware OS Paging SO MEMSYS 2016: PROCEEDINGS OF THE INTERNATIONAL SYMPOSIUM ON MEMORY SYSTEMS LA English DT Proceedings Paper CT International Symposium on Memory Systems (MEMSYS) CY OCT 03-06, 2016 CL Washington, DC SP Sandia Natl Labs, Intel, Rambus, ARM, Lawrence Livermore Natl Lab, Memory Syst LLC, Univ Maryland, AMD, Assoc Comp Machinery DE Bank-Level Parallelism; MLP; DRAM; Channels; Paging; Bandwidth Utilization AB Optimal use of available memory bank-level parallelism and channel bandwidth heavily impacts the performance of an application. Research studies have focused on improving bandwidth utilization by employing scheduling policies and request re-ordering techniques at the memory controller. However, potential to extract memory performance by intelligent page allocation that maximizes opportunity for bank-level parallelism and row buffer hits is often overlooked. The actual physical page location in memory has a huge impact on bank conflicts and potential for prioritizing low-latency requests such as row buffer hits. We demonstrate that with more intelligent virtual to physical paging mechanisms it is possible to reduce bank conflicts at the memory and achieve higher bandwidth utilization. Such intelligent paging mechanisms can then form a basis for other request re-ordering techniques to further improve memory performance. In this study we only focus on virtual-to-physical paging techniques and demonstrate 38.4% improvement on DRAM bandwidth utilization with a profile-based scheme. We study a wide variety of workloads from varied benchmark suites. We present results for profile based as well as preliminary results for dynamically adaptive paging techniques. Our results demonstrate improved bandwidth utilization with DRAM aware page layouts. Dynamic paging schemes further demonstrate the potential of run-time adaptive techniques in improving bandwidth utilization of increasingly parallel multi-channel main memory systems. C1 [Bheda, Rishiraj A.] Georgia Inst Technol, 266 Ferst Dr KACB 2337, Atlanta, GA 30332 USA. [Conte, Thomas M.] Georgia Inst Technol, 266 Ferst Dr KACB 2334, Atlanta, GA 30332 USA. [Vetter, Jeffrey S.] Oak Ridge Natl Lab, One Bethel Valley Rd Bldg 5100-232, Oak Ridge, TN 37831 USA. RP Bheda, RA (reprint author), Georgia Inst Technol, 266 Ferst Dr KACB 2337, Atlanta, GA 30332 USA. EM rbheda3@gatech.edu; tom@conte.us; vetter@ornl.gov NR 19 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 978-1-4503-4305-3 PY 2016 BP 289 EP 294 DI 10.1145/2989081.2989094 PG 6 WC Computer Science, Hardware & Architecture SC Computer Science GA BG6HD UT WOS:000390297400032 ER PT J AU Ibrahim, KZ Fatollahi-Fard, F Donofrio, D Shalf, J AF Ibrahim, Khaled Z. Fatollahi-Fard, Farzad Donofrio, David Shalf, John GP ACM TI Characterizing the Performance of Hybrid Memory Cube Using ApexMAP Application Probes SO MEMSYS 2016: PROCEEDINGS OF THE INTERNATIONAL SYMPOSIUM ON MEMORY SYSTEMS LA English DT Proceedings Paper CT International Symposium on Memory Systems (MEMSYS) CY OCT 03-06, 2016 CL Washington, DC SP Sandia Natl Labs, Intel, Rambus, ARM, Lawrence Livermore Natl Lab, Memory Syst LLC, Univ Maryland, AMD, Assoc Comp Machinery DE Performance Analysis; HMC; ApexMAP Memory Technology; FPGA ID PROGRAM-LOCALITY; REUSE DISTANCE; MODEL AB Full characterization of the performance of a new memory technology is typically a subtle process because of the difficulty in subjecting the memory to different access patterns before creating a full system. Simple performance characterization, such as raw bandwidth, does not give enough information about the suitability of the memory for different architectural design choices, such as suitability for processing in memory, performance reliance on relaxed ordering semantic, or how to implement atomics, etc. This paper discusses the use of the ApexMAP synthetic benchmarks to assess the Hybrid Memory Cube (HMC) technology. ApexMAP, through a simple model for spatial and temporal locality, allows creating many application probes that could be used to subject the memory to different access patterns. We use a Verilog implementation of ApexMAP to show the impact of contending requests, flow control, and access granularity on the HMC performance. We show a wide variation (up to 20x) in the observed performance based on the application locality parameters and the HMC architectural configurations. C1 [Ibrahim, Khaled Z.; Fatollahi-Fard, Farzad; Donofrio, David; Shalf, John] Lawrence Berkeley Natl Lab, Computat Res Div, Berkeley, CA 94720 USA. RP Ibrahim, KZ (reprint author), Lawrence Berkeley Natl Lab, Computat Res Div, Berkeley, CA 94720 USA. EM kzibrahim@lbl.gov; ffard@lbl.gov; ddonofrio@lbl.gov; jshalf@lbl.gov NR 19 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 978-1-4503-4305-3 PY 2016 BP 429 EP 436 DI 10.1145/2989081.2989090 PG 8 WC Computer Science, Hardware & Architecture SC Computer Science GA BG6HD UT WOS:000390297400046 ER PT J AU Lloyd, S Gokhale, M AF Lloyd, Scott Gokhale, Maya GP ACM TI Evaluating the feasibility of storage class memory as main memory SO MEMSYS 2016: PROCEEDINGS OF THE INTERNATIONAL SYMPOSIUM ON MEMORY SYSTEMS LA English DT Proceedings Paper CT International Symposium on Memory Systems (MEMSYS) CY OCT 03-06, 2016 CL Washington, DC SP Sandia Natl Labs, Intel, Rambus, ARM, Lawrence Livermore Natl Lab, Memory Syst LLC, Univ Maryland, AMD, Assoc Comp Machinery DE accelerator; data intensive; emulator; energy; memory bandwidth; performance; persistent memory; processing in memory; storage class memory AB Storage class memory offers the prospect of large capacity persistent memory with DRAM-like access latency. In this work, we evaluate the performance of a small set of benchmarks using SCM as main memory. We use an FPGA emulator to model a range of memory latencies spanning DRAM to latency projected for SCM and beyond. Our work highlights the performance impact of higher latency and identifies conditions by which SCM can effectively be used as main memory. C1 [Lloyd, Scott; Gokhale, Maya] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. RP Lloyd, S (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. EM lloyd23@llnl.gov; gokhale2@llnl.gov NR 7 TC 0 Z9 0 U1 2 U2 2 PU ASSOC COMPUTING MACHINERY PI NEW YORK PA 1515 BROADWAY, NEW YORK, NY 10036-9998 USA BN 978-1-4503-4305-3 PY 2016 BP 437 EP 441 DI 10.1145/2989081.2989118 PG 5 WC Computer Science, Hardware & Architecture SC Computer Science GA BG6HD UT WOS:000390297400047 ER PT S AU Liang, WY AF Liang, Wenyao BE Engheta, N Noginov, MA Zheludev, NI TI Magnetically controllable circulator based on photonic crystal unidirectional waveguide consisting of metamaterials SO METAMATERIALS, METADEVICES, AND METASYSTEMS 2016 SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Metamaterials, Metadevices, and Metasystems CY AUG 28-SEP 01, 2016 CL San Diego, CA SP SPIE DE Photonic crystals; Unidirectional transmission; Phase; Perfect electric conductor defects; Circulators ID CAVITIES; MODES AB Unidirectional edge modes are achieved in gyromagnetic photonic crystals. The physical reason is attributed to magnetic resonance and broken time-reversal symmetry under external magnetic fields. These edge modes propagate only along a single direction, while the backward modes are completely suppressed. The unidirectional transmittance is nearly 100% and hardly affected by perfect electric conductor (PEC) defect. However, a PEC defect has sensitive influence on both the phase delay and pattern distribution of unidirectional edge modes. These properties hold promise in designing various unidirectional devices. Here we design a three-port circulator with high transmission contrast and magnetic controllability simultaneously. C1 [Liang, Wenyao] South China Univ Technol, Sch Phys & Optoelect, Guangzhou 510640, Guangdong, Peoples R China. [Liang, Wenyao] US DOE, Ames Lab, Ames, IA 50011 USA. [Liang, Wenyao] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA. RP Liang, WY (reprint author), South China Univ Technol, Sch Phys & Optoelect, Guangzhou 510640, Guangdong, Peoples R China.; Liang, WY (reprint author), US DOE, Ames Lab, Ames, IA 50011 USA.; Liang, WY (reprint author), Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA. EM liangwenyao@scut.edu.cn NR 29 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 978-1-5106-0227-4; 978-1-5106-0228-1 J9 PROC SPIE PY 2016 VL 9918 AR UNSP 99182H DI 10.1117/12.2236158 PG 6 WC Optics; Physics, Applied SC Optics; Physics GA BG6JX UT WOS:000390409000019 ER PT J AU Jang, H Yun, SY Shin, J Yi, Y AF Jang, Hyeryung Yun, Se-Young Shin, Jinwoo Yi, Yung GP ACM TI Distributed Coordination Maximization over Networks: A Stochastic Approximation Approach SO MOBIHOC '16: PROCEEDINGS OF THE 17TH ACM INTERNATIONAL SYMPOSIUM ON MOBILE AD HOC NETWORKING AND COMPUTING LA English DT Proceedings Paper CT 17th ACM International Symposium on Mobile Ad Hoc Networking and Computing (MobiHoc) CY JUL 05-08, 2016 CL Heinz Nixdorf Museums Forum, Paderborn, GERMANY SP ACM, ACM SIGMOBILE, Collaborat Res Ctr Fly Comp, German Sci Fdn, Heinz Nixdorf Inst, Univ Paderborn HO Heinz Nixdorf Museums Forum DE CoordinationMaximization; Stochastic Approximation; Distributed Algorithm ID DYNAMICS AB In various online/offine networked environments, it is very popular that the system can benefit from coordinating actions of two interacting nodes, but incur some cost due to such coordination. Examples include a wireless sensor networks with duty cycling, where a sensor node consumes a certain amount of energy when it is awake, but a coordinated operation of sensors enables some meaningful tasks, e.g., sensed data forwarding, collaborative sensing of a phenomenon, or efficient decision of further sensing actions. In this paper, we formulate an optimization problem that captures the amount of coordination gain at the cost of node activation over networks. This problem is challenging since the target utility is a function of the long-term time portion of the inter-coupled activations of two adjacent nodes, and thus a standard Lagrange duality theory is hard to apply to obtain a distributed decomposition as in the standard NUM (Network Utility Maximization). We propose a fully-distributed algorithm that requires only one-hop message passing. Our approach is inspired by a control of Ising model in statistical physics, and the proposed algorithm is motivated by a stochastic approximation method that runs a Markov chain incompletely over time, but provably guarantees its convergence to the optimal solution. We validate our theoretical findings on convergence and optimality through extensive simulations under various scenarios. C1 [Jang, Hyeryung; Shin, Jinwoo; Yi, Yung] Korea Adv Inst Sci & Technol, Dept Elect Engn, Daejeon, South Korea. [Yun, Se-Young] Los Alamos Natl Lab, Los Alamos, NM USA. RP Jang, H (reprint author), Korea Adv Inst Sci & Technol, Dept Elect Engn, Daejeon, South Korea. EM hrjang@lanada.kaist.ac.kr; syun@lanl.gov; jinwoos@kaist.ac.kr; yiyung@kaist.edu NR 27 TC 0 Z9 0 U1 0 U2 0 PU ASSOC COMPUTING MACHINERY PI NEW YORK PA 1515 BROADWAY, NEW YORK, NY 10036-9998 USA PY 2016 BP 181 EP 190 DI 10.1145/2942358.2942366 PG 10 WC Computer Science, Software Engineering; Computer Science, Theory & Methods; Telecommunications SC Computer Science; Telecommunications GA BG6LD UT WOS:000390463900019 ER PT S AU Goencue, A Liu, YN Okten, G Hussaini, MY AF Goencue, Ahmet Liu, Yaning Oekten, Giray Hussaini, M. Yousuff BE Cools, R Nuyens, D TI Uncertainty and Robustness in Weather Derivative Models SO MONTE CARLO AND QUASI-MONTE CARLO METHODS SE Springer Proceedings in Mathematics & Statistics LA English DT Proceedings Paper CT 11th International Conference on Monte Carlo and Quasi-Monte Carlo Methods in Scientific Computing (MCQMC) CY APR 06-11, 2014 CL KU Leuven, Leuven, BELGIUM SP US Natl Sci Fdn, FWO Sci Res Community Stochast Modelling HO KU Leuven DE Weather derivatives; Sobol' sensitivity analysis; Model robustness ID GLOBAL SENSITIVITY MEASURES; MARKET PRICE; TEMPERATURE; INDEXES; RISK AB Pricing of weather derivatives often requires a model for the underlying temperature process that can characterize the dynamic behavior of daily average temperatures. The comparison of different stochastic models with a different number of model parameters is not an easy task, especially in the absence of a liquid weather derivatives market. In this study, we consider four widely used temperature models in pricing temperature-based weather derivatives. The price estimates obtained from these four models are relatively similar. However, there are large variations in their estimates with respect to changes in model parameters. To choose the most robust model, i.e., the model with smaller sensitivity with respect to errors or variation in model parameters, the global sensitivity analysis of Sobol' is employed. An empirical investigation of the robustness of models is given using temperature data. C1 [Goencue, Ahmet] Xian Jiaotong Liverpool Univ, Suzhou 215123, Peoples R China. [Liu, Yaning] Lawrence Berkeley Natl Lab, Dept Hydrogeol, Div Earth Sci, Berkeley, CA 94720 USA. [Oekten, Giray; Hussaini, M. Yousuff] Florida State Univ, Tallahassee, FL 32306 USA. RP Okten, G (reprint author), Florida State Univ, Tallahassee, FL 32306 USA. EM Ahmet.Goncu@xjtlu.edu.cn; yaningliu@lbl.gov; okten@math.fsu.edu; yousuff@fsu.edu NR 28 TC 0 Z9 0 U1 1 U2 1 PU SPRINGER INT PUBLISHING AG PI CHAM PA GEWERBESTRASSE 11, CHAM, CH-6330, SWITZERLAND SN 2194-1009 BN 978-3-319-33507-0; 978-3-319-33505-6 J9 SPRINGER P MATH STAT PY 2016 VL 163 BP 351 EP 365 DI 10.1007/978-3-319-33507-0_17 PG 15 WC Mathematics; Statistics & Probability SC Mathematics GA BG5YK UT WOS:000389808000017 ER PT J AU Hamlet, JR Lamb, CC AF Hamlet, Jason R. Lamb, Christopher C. GP ACM TI Dependency Graph Analysis and Moving Target Defense Selection SO MTD'16: PROCEEDINGS OF THE 2016 ACM WORKSHOP ON MOVING TARGET DEFENSE LA English DT Proceedings Paper CT ACM Workshop on Moving Target Defense CY OCT 24, 2016 CL Vienna, AUSTRIA SP ACM, ACM SIGSAC DE Dynamic Defense; Moving Target Defense; Cybersecurity AB Moving target defense (MTD) is an emerging paradigm in which system defenses dynamically mutate in order to decrease the overall system attack surface. Though the concept is promising, implementations have not been widely adopted. The field has been actively researched for over ten years, and has only produced a small amount of extensively adopted defenses, most notably, address space layout randomization (ASLR). This is despite the fact that there currently exist a variety of moving target implementations and proofs-of-concept. We suspect that this results from the moving target controls breaking critical system dependencies from the perspectives of users and administrators, as well as making things more difficult for attackers. As a result, the impact of the controls on overall system security is not sufficient to overcome the inconvenience imposed on legitimate system users. In this paper, we analyze a successful MTD approach. We study the control's dependency graphs, showing how we use graph theoretic and network properties to predict the effectiveness of the selected control. C1 [Hamlet, Jason R.; Lamb, Christopher C.] Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. RP Hamlet, JR (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. EM jrhamle@sandia.gov; cclamb@sandia.gov NR 29 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 978-1-4503-4570-5 PY 2016 BP 105 EP 116 DI 10.1145/2995272.2995277 PG 12 WC Computer Science, Theory & Methods SC Computer Science GA BG6HE UT WOS:000390297500012 ER PT J AU Rauf, U Gillani, F Al-Shaer, E Halappanavar, M Chatterjee, S Oehmen, C AF Rauf, Usman Gillani, Fida Al-Shaer, Ehab Halappanavar, Mahantesh Chatterjee, Samrat Oehmen, Christopher GP ACM TI Formal Approach for Resilient Reachability based on End-System Route Agility SO MTD'16: PROCEEDINGS OF THE 2016 ACM WORKSHOP ON MOVING TARGET DEFENSE LA English DT Proceedings Paper CT ACM Workshop on Moving Target Defense CY OCT 24, 2016 CL Vienna, AUSTRIA SP ACM, ACM SIGSAC AB The deterministic nature of existing routing protocols has resulted into an ossified Internet with static and predictable network routes. This gives persistent attackers (e.g. eavesdroppers and DDoS attackers) plenty of time to study the network and identify the vulnerable (critical) links to plan devastating and stealthy attacks. Recently, Moving Target Defense (MTD) based approaches have been proposed to to defend against DoS attacks. However, MTD based approaches for route mutation are oriented towards reconfiguring the parameters in Local Area Networks (LANs), and do not provide any protection against infrastructure level attacks, which inherently limits their use for mission critical services over the Internet infrastructure. To cope with these issues, we extend the current routing architecture to consider end-hosts as routing elements, and present a formal method based agile defense mechanism to embed resiliency in the existing cyber infrastructure. The major contributions of this paper include: (1) formalization of efficient and resilient End to End (E2E) reachability problem as a constraint satisfaction problem, which identifies the potential end-hosts to reach a destination while satisfying resilience and QoS constraints, (2) design and implementation of a novel decentralized End Point Route Mutation (EPRM) protocol, and (3) design and implementation of planning algorithm to minimize the overlap between multiple flows, for the sake of maximizing the agility in the system. Our PlanetLab based implementation and evaluation validates the correctness, effectiveness and scalability of the proposed approach. C1 [Rauf, Usman; Gillani, Fida; Al-Shaer, Ehab] UNC Charlotte, Charlotte, NC 28223 USA. [Halappanavar, Mahantesh; Chatterjee, Samrat; Oehmen, Christopher] PNNL, Richland, WA USA. RP Rauf, U (reprint author), UNC Charlotte, Charlotte, NC 28223 USA. EM urauf@uncc.edu; sgillan4@uncc.edu; ealshaer@uncc.edu; mahantesh.halappanavar@pnnl.org; samrat.chatterjee@pnnl.org; christopher.oehmen@pnnl.org NR 24 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 978-1-4503-4570-5 PY 2016 BP 117 EP 127 DI 10.1145/2995272.2995275 PG 11 WC Computer Science, Theory & Methods SC Computer Science GA BG6HE UT WOS:000390297500013 ER PT S AU Larsen, G Huang, WJ Zhao, YP Murph, SEH AF Larsen, George Huang, Weijie Zhao, Yiping Murph, Simona E. Hunyadi BE Cabrini, S Lerondel, G Schwartzberg, AM Mokari, T TI Porous Iron Oxide Nanorods and Their Photothermal Applications SO NANOPHOTONIC MATERIALS XIII SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Nanophotonic Materials XIII CY AUG 30-31, 2016 CL San Diego, CA SP SPIE DE Photothermal; iron oxide; Fe3O4; magnetite; adsorption; methylene blue; co-deposition; oblique angle deposition; nanorods; dynamic shadowing growth ID METAL NANOPARTICLES; FE3O4; SIZE AB Iron oxide is a unique semiconductor material, either as a single nanoparticle, or as a component of multifunctional nanoparticles. Its desirable properties, abundance, non-toxicity, and excellent magnetic properties make it a valuable for many applications. Porous iron oxide nanorods are able to transduce light into heat through the photothermal effect. Photothermal heating arises from the energy dissipated during light absorption leading to rapid temperature rise in close proximity to the surface of the nanoparticle. The heating effect can be efficiently harnessed to drive/promote different physical phenomena. In this report, we describe the synthesis and properties of porous Fe3O4 for photothermal applications. We then demonstrate their use as photothermally enhanced and recyclable materials for environmental remediation through sorption processes. C1 [Larsen, George; Murph, Simona E. Hunyadi] Savannah River Natl Lab, Natl Secur Directorate, Aiken, SC 29802 USA. [Huang, Weijie; Zhao, Yiping; Murph, Simona E. Hunyadi] Univ Georgia, Dept Phys & Astron, Athens, GA 30602 USA. RP Larsen, G; Murph, SEH (reprint author), Savannah River Natl Lab, Natl Secur Directorate, Aiken, SC 29802 USA.; Larsen, G; Murph, SEH (reprint author), Univ Georgia, Dept Phys & Astron, Athens, GA 30602 USA. EM George.Larsen@srnl.doe.gov; Simona.Murph@srnl.doe.gov NR 22 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 978-1-5106-0229-8; 978-1-5106-0230-4 J9 PROC SPIE PY 2016 VL 9919 AR UNSP 991904 DI 10.1117/12.2237997 PG 8 WC Nanoscience & Nanotechnology; Optics SC Science & Technology - Other Topics; Optics GA BG6JY UT WOS:000390409100002 ER PT S AU Otto, LM Hammack, AT Aloni, S Ogletree, DF Olynick, DL Dhuey, S Stadler, BJH Schwartzberg, AM AF Otto, Lauren M. Hammack, Aaron T. Aloni, Shaul Ogletree, D. Frank Olynick, Deirdre L. Dhuey, Scott Stadler, Bethanie J. H. Schwartzberg, Adam M. BE Cabrini, S Lerondel, G Schwartzberg, AM Mokari, T TI Plasma-enhanced atomic layer deposition for plasmonic TiN SO NANOPHOTONIC MATERIALS XIII SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Nanophotonic Materials XIII CY AUG 30-31, 2016 CL San Diego, CA SP SPIE DE plasma enhanced atomic layer deposition; titanium nitride; TiN; plasmonics; synthetic metal ID NITRIDE THIN-FILMS; TITANIUM NITRIDE; METAL; METAMATERIALS; SILVER; GOLD AB This work presents the low temperature plasma-enhanced atomic layer deposition (PE-ALD) of TiN, a promising plasmonic synthetic metal. The plasmonics community has immediate needs for alternatives to traditional plasmonic materials (e.g. Ag and Au), which lack chemical, thermal, and mechanical stability. Plasmonic alloys and synthetic metals have significantly improved stability, but their growth can require high-temperatures (> 400 degrees C), and it is difficult to control the thickness and directionality of the resulting film, especially on technologically important substrates. Such issues prevent the application of alternative plasmonic materials for both fundamental studies and large-scale industrial applications. Alternatively, PE-ALD allows for conformal deposition on a variety of substrates with consistent material properties. This conformal coating will allow the creation of exotic three-dimensional structures, and low-temperature deposition techniques will provide unrestricted usage across a variety of platforms. The characterization of this new plasmonic material was performed with in-situ spectroscopic ellipsometry as well as Auger electron spectroscopy for analysis of TiN film sensitivity to oxide cross-contamination. Plasmonic TiN films were fabricated, and a chlorine plasma etch was found to pattern two dimensional gratings as a test structure. Optical measurements of 900 nm period gratings showed reasonable agreement with theoretical modeling of the fabricated structures, indicating that ellipsometry models of the TiN were indeed accurate. C1 [Otto, Lauren M.; Stadler, Bethanie J. H.] Univ Minnesota, Dept Elect & Comp Engn, 200 Union St SE, Minneapolis, MN 55455 USA. [Otto, Lauren M.; Hammack, Aaron T.; Aloni, Shaul; Ogletree, D. Frank; Olynick, Deirdre L.; Dhuey, Scott; Schwartzberg, Adam M.] Lawrence Berkeley Natl Lab, Mol Foundry, 1 Cyclotron Rd, Berkeley, CA 94720 USA. RP Schwartzberg, AM (reprint author), Lawrence Berkeley Natl Lab, Mol Foundry, 1 Cyclotron Rd, Berkeley, CA 94720 USA. EM amschwartzberg@lbl.gov NR 22 TC 0 Z9 0 U1 5 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 978-1-5106-0229-8; 978-1-5106-0230-4 J9 PROC SPIE PY 2016 VL 9919 AR UNSP 99190N DI 10.1117/12.2238340 PG 8 WC Nanoscience & Nanotechnology; Optics SC Science & Technology - Other Topics; Optics GA BG6JY UT WOS:000390409100009 ER PT S AU Zhu, JH Stevens, E He, YJ Hong, KL Ivanov, I AF Zhu, Jiahua Stevens, Eric He, Youjun Hong, Kunlun Ivanov, Ilia BE Cabrini, S Lerondel, G Schwartzberg, AM Mokari, T TI Carbon nanotube-templated assembly of regioregular poly(3-alkylthiophene) in solution SO NANOPHOTONIC MATERIALS XIII SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Nanophotonic Materials XIII CY AUG 30-31, 2016 CL San Diego, CA SP SPIE DE conjugated polymer; poly(3-alkylthiophene); carbon nanotube; hierarchical assembly; templated assembly; organogel ID CONJUGATED POLYMERS; SOLAR-CELLS; POLY(3-HEXYLTHIOPHENE); COPOLYMERS; SCATTERING; XYLENE; GELS AB Control of structural heterogeneity by rationally encoding of the molecular assemblies is a key enabling design of hierarchical, multifunctional materials of the future. Here we report the strategies to gain such control using solution-based assembly to construct a hybrid nano-assembly and a network hybrid structure of regioregular poly(3-alkylthiophene) - carbon nanotube (P3AT-CNT). The opto-electronic performance of conjugated polymer (P3AT) is defined by the structure of the aggregate in solution and in the solid film. Control of P3AT aggregation would allow formation of broad range of morphologies with very distinct electro-optical. We utilize interactive templating to confine the assembly behavior of conjugated polymers, replacing poorly controlled solution processing approach. Perfect crystalline surface of the single-walled and multi-walled carbon nanotube (SWCNT/MWCNT) acts as a template, seeding P3AT aggregation of the surface of the nanotube. The seed continues directional growth through pi-pi stacking leading to the formation of to well-defined P3AT-CNT morphologies, including comb-like nano-assemblies, superstructures and gel networks. Interconnected, highly-branched network structure of P3AT-CNT hybrids is of particular interest to enable efficient, long-range, balanced charge carrier transport. The structure and opto-electionic function of the intermediate assemblies and networks of P3AT/CNT hybrids are characterized by transmission election microscopy and UV-vis absorption. C1 [Zhu, Jiahua; He, Youjun; Hong, Kunlun; Ivanov, Ilia] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37830 USA. [Stevens, Eric] SUNY Coll Environm Sci & Forestry, Syracuse, NY 13210 USA. RP Zhu, JH (reprint author), Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37830 USA. NR 23 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 978-1-5106-0229-8; 978-1-5106-0230-4 J9 PROC SPIE PY 2016 VL 9919 AR UNSP 991916 DI 10.1117/12.2238149 PG 6 WC Nanoscience & Nanotechnology; Optics SC Science & Technology - Other Topics; Optics GA BG6JY UT WOS:000390409100019 ER PT J AU Sushko, ML Rosso, KM AF Sushko, M. L. Rosso, K. M. TI The origin of facet selectivity and alignment in anatase TiO2 nanoparticles in electrolyte solutions: implications for oriented attachment in metal oxides SO NANOSCALE LA English DT Article ID DENSITY-FUNCTIONAL THEORY; CRYSTAL-GROWTH; WATER-ADSORPTION; MICA SURFACES; HYDROTHERMAL CONDITIONS; NANOCRYSTALS; AGGREGATION; NANOWIRES; NANORODS; ENERGY AB Oriented attachment (OA) is an important nonclassical pathway for crystal growth from solution, occurring by the self-assembly of nanoparticles and often leading to highly organized three-dimensional crystal morphologies. The forces that drive nanocrystal reorientation for face-selective attachment and exclude improperly aligned particles have remained unknown. Here we report evidence at the microscopic level that ion correlation forces arising from dynamically interacting electrical double layers are responsible for face-selective attraction and particle rotation into lattice co-alignment as particles interact at long range. Atomic-to-mesoscale simulations developed and performed for the archetype OA system of anatase TiO2 nanoparticles in aqueous HCl solutions show that face-selective attraction from ion correlation forces outcompetes electrostatic repulsion at several nanometers apart, drawing particle face pairs into a metastable solvent-separated captured state. The analysis of the facet and pH dependence of interparticle interactions is in quantitative agreement with the observed decreasing frequency of attachment between the (112), (001), and (101) face pairs, revealing an adhesion barrier that is largely due to steric hydration forces from structured intervening solvents. This finding helps open new avenues for controlling crystal growth pathways leading to highly ordered three-dimensional nanomaterials. C1 [Sushko, M. L.; Rosso, K. M.] Pacific Northwest Natl Lab, Div Phys Sci, Richland, WA 99352 USA. RP Sushko, ML (reprint author), Pacific Northwest Natl Lab, Div Phys Sci, Richland, WA 99352 USA. EM maria.sushko@pnnl.gov FU U.S. Department of Energy (DOE) Office of Science, Office of Basic Energy Sciences, Chemical Sciences, Geosciences, and Biosciences Division, through its Geosciences Program at Pacific Northwest National Laboratory (PNNL) FX This study is based upon work supported by the U.S. Department of Energy (DOE) Office of Science, Office of Basic Energy Sciences, Chemical Sciences, Geosciences, and Biosciences Division, through its Geosciences Program at Pacific Northwest National Laboratory (PNNL). The modeling approach was developed through support of the Materials Synthesis and Simulations across Scales (MS3) Initiative, a Laboratory Directed Research and Development Program at PNNL. PNNL is a multiprogram national laboratory operated by Battelle for the DOE. Simulations were performed using PNNL Institutional Computing resources. We thank Jim De Yoreo for fruitful discussions. NR 82 TC 0 Z9 0 U1 5 U2 5 PU ROYAL SOC CHEMISTRY PI CAMBRIDGE PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND SN 2040-3364 EI 2040-3372 J9 NANOSCALE JI Nanoscale PY 2016 VL 8 IS 47 BP 19714 EP 19725 DI 10.1039/c6nr06953c PG 12 WC Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied SC Chemistry; Science & Technology - Other Topics; Materials Science; Physics GA EF1OW UT WOS:000390095400027 PM 27874139 ER PT J AU Bosse, T AF Bosse, Torsten TI Augmenting the one-shot framework by additional constraints SO OPTIMIZATION METHODS & SOFTWARE LA English DT Article DE nonlinear optimization; automatic differentiation; piggyback; one-shot method; constraints; eigenvalue analysis ID AERODYNAMIC SHAPE OPTIMIZATION; DESIGN OPTIMIZATION; HESSIANS; MATRIX AB The (multistep) one-shot method for design optimization problems has been successfully implemented for various applications. To this end, a slowly convergent primal fixed-point iteration of the state equation is augmented by an adjoint iteration and a corresponding preconditioned design update. In this paper we present a modification of the method that allows for additional equality constraints besides the usual state equation. A retardation analysis and the local convergence of the method in terms of necessary and sufficient conditions are given, which depend on key characteristics of the underlying problem and the quality of the utilized preconditioner. C1 [Bosse, Torsten] Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA. RP Bosse, T (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA. EM tbosse@anl.gov FU U.S. Department of Energy, Office of Science [DE-AC02-06CH11357] FX This material is based upon work partly supported by the U.S. Department of Energy, Office of Science [contract number DE-AC02-06CH11357]. NR 32 TC 0 Z9 0 U1 0 U2 0 PU TAYLOR & FRANCIS LTD PI ABINGDON PA 2-4 PARK SQUARE, MILTON PARK, ABINGDON OR14 4RN, OXON, ENGLAND SN 1055-6788 EI 1029-4937 J9 OPTIM METHOD SOFTW JI Optim. Method Softw. PY 2016 VL 31 IS 6 BP 1132 EP 1148 DI 10.1080/10556788.2016.1180692 PG 17 WC Computer Science, Software Engineering; Operations Research & Management Science; Mathematics, Applied SC Computer Science; Operations Research & Management Science; Mathematics GA EF6BI UT WOS:000390414200002 ER PT S AU Wang, YG Neureuther, A Naulleau, P AF Wang, Yow-Gwo Neureuther, Andy Naulleau, Patrick BE Kasprowicz, BS Buck, PD TI Impact of noise sources and optical design on defect sensitivity for EUV actinic pattern inspection SO PHOTOMASK TECHNOLOGY 2016 SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Photomask Technology CY SEP 12-14, 2016 CL San Jose, CA SP SPIE, BACUS DE EUV Actinic Pattern Inspection; Material-induced Phase Effect; EUV Mask Pattern Defect; Optical Design; Speckle Noise; Photon Shot Noise; Signal-to-Noise Ratio (SNR) AB In this paper, we discuss the impact of various noise sources and optical design on defect sensitivity for bright field EUV actinic pattern inspection. The result shows that an optimum pixel size is needed to maximize the defect signal to noise ratio (SNR) to balance the impact of increasing signal strength and photon shot noise from defect signal and the background pattern intensity (mask layout image) and speckle noise from the mask blank roughness. Moreover, we consider defocus showing that the EUV mask phase effect has an asymmetric impact on pattern defect SNR's through-focus. The impact of defocus limits inspection performance based on defect SNR. Using critical defect sizes in a case study, we show the defect SNR performance of the limiting case and discuss the possibility to utilize the phase effect of EUV mask absorber to improve the defect SNR by introducing a nominal defocus into the inspection system. A 50% improvement on SNR is achieved by introducing a -50 nm nominal defocus into the bright field inspection system to operate at a higher defect SNR region. C1 [Wang, Yow-Gwo; Neureuther, Andy; Naulleau, Patrick] Lawrence Berkeley Natl Lab, Ctr Xray Opt, Berkeley, CA 94720 USA. [Wang, Yow-Gwo; Neureuther, Andy] Univ Calif Berkeley, Dept Elect Engn & Comp Sci, Berkeley, CA 94720 USA. RP Wang, YG (reprint author), Lawrence Berkeley Natl Lab, Ctr Xray Opt, Berkeley, CA 94720 USA.; Wang, YG (reprint author), Univ Calif Berkeley, Dept Elect Engn & Comp Sci, Berkeley, CA 94720 USA. EM henrywyg@berkeley.edu NR 4 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 978-1-5106-0374-5; 978-1-5106-0375-2 J9 PROC SPIE PY 2016 VL 9985 AR 99850I DI 10.1117/12.2242794 PG 8 WC Optics SC Optics GA BG5UX UT WOS:000389775700010 ER PT J AU Kunin, A Li, WL Neumark, DM AF Kunin, Alice Li, Wei-Li Neumark, Daniel M. TI Time-resolved photoelectron imaging of iodide-nitromethane (I-center dot CH3NO2) photodissociation dynamics SO PHYSICAL CHEMISTRY CHEMICAL PHYSICS LA English DT Article ID DISSOCIATIVE ELECTRON-ATTACHMENT; S(N)2 NUCLEOPHILIC-SUBSTITUTION; DNA-STRAND BREAKS; UNIMOLECULAR DYNAMICS; NEGATIVE-IONS; DIPOLE; URACIL; ANION; STATES; TRANSFORMATION AB Femtosecond time-resolved photoelectron spectroscopy is used to probe the decay channels of iodide-nitromethane (I-center dot CH3NO2) binary clusters photoexcited at 3.56 eV, near the vertical detachment energy (VDE) of the cluster. The production of I- is observed, and its photoelectron signal exhibits a mono-exponential rise time of 21 +/- 1 ps. Previous work has shown that excitation near the VDE of the I-center dot CH3NO2 complex transfers an electron from iodide to form a dipole-bound state of CH3NO2- that rapidly converts to a valence bound (VB) anion. The long appearance time for the I- fragment suggests that the VB anion decays by back transfer of the excess electron to iodide, reforming the I-center dot CH3NO2 anion and resulting in evaporation of iodide. Comparison of the measured lifetime to that predicted by RRKM theory suggests that the dissociation rate is limited by intramolecular vibrational energy redistribution in the re-formed anion between the high frequency CH3NO2 vibrational modes and the much lower frequency intermolecular I-center dot CH3NO2 stretch and bends, the predominant modes involved in cluster dissociation to form I-. Evidence for a weak channel identified as HI + CH2NO2- is also observed. C1 [Kunin, Alice; Li, Wei-Li; Neumark, Daniel M.] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Neumark, Daniel M.] Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA. RP Neumark, DM (reprint author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.; Neumark, DM (reprint author), Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA. EM dneumark@berkeley.edu FU National Science Foundation [CHE-1361412]; DoD, Air Force Office of Scientific Research, National Defense Science and Engineering Graduate (NDSEG) Fellowship [32 CFR 168a] FX This research was funded by the National Science Foundation under Grant no. CHE-1361412. A. K. gratefully acknowledges that this research was conducted with Government support under and awarded by DoD, Air Force Office of Scientific Research, National Defense Science and Engineering Graduate (NDSEG) Fellowship, 32 CFR 168a. The authors would like to thank W. L. Hase and X. Ma for helpful discussions regarding this work. NR 52 TC 0 Z9 0 U1 2 U2 2 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 2016 VL 18 IS 48 BP 33226 EP 33232 DI 10.1039/c6cp06646a PG 7 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA EF6IY UT WOS:000390435800068 PM 27892572 ER PT S AU Guo, PJ Diroll, BT Ketterson, JB Schaller, RD Chang, RPH AF Guo, Peijun Diroll, Benjamin T. Ketterson, John B. Schaller, Richard D. Chang, Robert P. H. BE Kawata, S Tsai, DP TI Fine-Tune the Spectrum of Indium-Tin-Oxide Nanorod Arrays in the Visible Range SO PLASMONICS: DESIGN, MATERIALS, FABRICATION, CHARACTERIZATION, AND APPLICATIONS XIV SE Proceedings of SPIE LA English DT Proceedings Paper CT SPIE Optics + Photonics Conference on Plasmonics - Design, Materials, Fabrication, Characterization, and Applications XIV CY AUG 28-SEP 01, 2016 CL San Diego, CA SP SPIE DE Indium-tin-oxide; tin-doped indium oxide; nanorod; all-optical modulation; visible spectrum ID OPTICAL NONLINEARITY; ULTRAFAST; PLASMONICS; NANOANTENNAS AB All-optical modulation of light using metallic nanostructures can potentially enable processing of information with speed in the terahertz range. This is because the optical nonlinearity of metals dictated by the electron-phonon coupling is intrinsically fast. Nobel metals have achieved great success to this end due to their superior plasmonic properties in the visible. However, each type of noble metals only works in a specific wavelength range and therefore broadband spectral response covering the wide visible spectrum can be a challenge. Here we introduce indium-tin-oxide nanorod arrays (ITO-NRAs) which exhibit broadband response covering the visible spectrum. We show that the static spectral response of ITO-NRAs does not depend on the incident polarization and is insensitive to whether the lattice is a square or a rectangle. We further demonstrate that the transmission spectrum can be slightly shifted by changing the sample temperature, as well as adjusting the doping concentration which can be achieved by annealing the sample in oxygen rich environments. When pumped by an optical pulse with photon energy above the bandgap, the transmission can be modified in the entire visible range. These preliminary results show that ITO-NRAs offer unique opportunities for all-optical modulation in optical frequencies. C1 [Guo, Peijun; Chang, Robert P. H.] Northwestern Univ, Dept Mat Sci & Engn, 2220 Campus Dr, Evanston, IL 60208 USA. [Diroll, Benjamin T.; Schaller, Richard D.] Ctr Nanoscale Mat, Argonne Natl Lab, 9700 South Cass Ave, Lemont, IL 60439 USA. [Ketterson, John B.] Northwestern Univ, Dept Phys & Astron, 2145 Sheridan Rd, Evanston, IL 60208 USA. [Schaller, Richard D.] Northwestern Univ, Dept Chem, 2145 Sheridan Rd, Evanston, IL 60208 USA. RP Guo, PJ (reprint author), Northwestern Univ, Dept Mat Sci & Engn, 2220 Campus Dr, Evanston, IL 60208 USA. NR 20 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 978-1-5106-0233-5; 978-1-5106-0234-2 J9 PROC SPIE PY 2016 VL 9921 AR UNSP 99211M DI 10.1117/12.2236163 PG 6 WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Science & Technology - Other Topics; Materials Science GA BG6FZ UT WOS:000390259100010 ER PT S AU Liapis, AC Sfeir, MY Black, CT AF Liapis, Andreas C. Sfeir, Matthew Y. Black, Charles T. BE Kawata, S Tsai, DP TI Plasmonic transparent conductors SO PLASMONICS: DESIGN, MATERIALS, FABRICATION, CHARACTERIZATION, AND APPLICATIONS XIV SE Proceedings of SPIE LA English DT Proceedings Paper CT SPIE Optics + Photonics Conference on Plasmonics - Design, Materials, Fabrication, Characterization, and Applications XIV CY AUG 28-SEP 01, 2016 CL San Diego, CA SP SPIE DE Plasmonic conductors; transparent conductors; sub-wavelength hole arrays; extraordinary optical transmission ID SUBWAVELENGTH HOLE ARRAYS; EXTRAORDINARY OPTICAL-TRANSMISSION; SENSITIZED SOLAR-CELLS; LIGHT-EMITTING-DIODES; ELECTRODES; FILMS AB Many of today's technological applications, such as solar cells, light-emitting diodes, displays, and touch screens, require materials that are simultaneously optically transparent and electrically conducting. Here we explore transparent conductors based on the excitation of surface plasmons in nanostructured metal films. We measure both the optical and electrical properties of films perforated with nanometer-scale features and optimize the design parameters in order to maximize optical transmission without sacrificing electrical conductivity. We demonstrate that plasmonic transparent conductors can out-perform indium tin oxide in terms of both their transparency and their conductivity. C1 [Liapis, Andreas C.; Sfeir, Matthew Y.; Black, Charles T.] Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA. RP Liapis, AC (reprint author), Brookhaven Natl Lab, Ctr Funct Nanomat, Upton, NY 11973 USA. EM aliapis@bnl.gov; ctblack@bnl.gov OI Liapis, Andreas/0000-0001-6810-3354 NR 21 TC 1 Z9 1 U1 1 U2 1 PU SPIE-INT SOC OPTICAL ENGINEERING PI BELLINGHAM PA 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA SN 0277-786X BN 978-1-5106-0233-5; 978-1-5106-0234-2 J9 PROC SPIE PY 2016 VL 9921 AR UNSP 992138 DI 10.1117/12.2238469 PG 6 WC Nanoscience & Nanotechnology; Materials Science, Multidisciplinary SC Science & Technology - Other Topics; Materials Science GA BG6FZ UT WOS:000390259100028 ER PT J AU Dafflon, B Leger, E Soom, F Ulrich, C Peterson, JE Hubbard, SS AF Dafflon, B. Leger, E. Soom, F. Ulrich, C. Peterson, J. E. Hubbard, S. S. GP IEEE TI Quantification of Arctic Soil and Permafrost Properties Using Ground Penetrating Radar SO PROCEEDINGS OF 2016 16TH INTERNATIONAL CONFERENCE ON GROUND PENETRATING RADAR (GPR) LA English DT Proceedings Paper CT 16th International Conference on Ground Penetrating Radar (GPR) CY JUN 13-16, 2016 CL Hong Kong Polytechn Univ, Dept Land Surveying & Geo Informat, Hong Kong, PEOPLES R CHINA SP IEEE Geoscience & Remote Sensing Soc, Soc Explorat Geophyiscists, NDT & E Int, Hong Kong Polytechn Univ, Fac Construct & Environm, 3D RADAR, Transient Technologies, GSSI, Earth Prod China Ltd, RADAR Syst Inc, Laurel Technologies, Sensors & Software, GEOTECH, Ingn Syst, UTSI Elect, GUIDELINEGEO, China Univ Mining & Technol, GPR SLICE HO Hong Kong Polytechn Univ, Dept Land Surveying & Geo Informat DE GPR imaging in polygonal-shaped Arctic tundra; ice-wedge delineation and characterization; influence of freeze-thaw process on GPR signal; thaw and snow layer thickness estimations ID ALASKA; BARROW; AREA; GPR AB Improving understanding of Arctic ecosystem functioning and parameterization of models that simulate freeze-thaw dynamics require advances in quantifying soil and snow properties. Due to the significant spatiotemporal variability of soil properties and the limited information provided by point-scale measurements (e.g., cores), geophysical methods hold potential for improving soil and permafrost characterization. In this study, we evaluate the use of Ground Penetrating Radar (GPR) to estimate thaw layer thickness, snow depth and ice-wedge characteristics in polygonal-shaped tundra in Barrow, AK. To this end, we analyze GPR and point-scale measurements collected along several parallel transects at the end of the growing season and the end of winter. A synthetic study is also performed to understand the GPR signal response to ice-wedge characteristics. Results show that GPR data collected during the growing season provide reliable estimates of thaw depth although strong spatial heterogeneity in soil properties can impair the estimates. While previous studies have documented the value of GPR for providing thaw depth estimates during the growing season, results from this study suggest that GPR methods are also useful for estimating active layer thickness during the frozen season, snow thickness and geometry of permafrost features, such as ice-wedges. C1 [Dafflon, B.; Leger, E.; Soom, F.; Ulrich, C.; Peterson, J. E.; Hubbard, S. S.] Lawrence Berkeley Natl Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA. RP Dafflon, B (reprint author), Lawrence Berkeley Natl Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA. EM bdafflon@lbl.gov 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 978-1-5090-5181-6 PY 2016 PG 6 WC Engineering, Electrical & Electronic; Telecommunications SC Engineering; Telecommunications GA BG6DR UT WOS:000390091300074 ER PT S AU Yang, H Wang, YD An, K AF Yang, Hui Wang, Yandong An, Ke BE Zheng, Z Zhuo, X TI Thermal annealing effects on structural and magnetic properties of Fe46Mn26Ga28 ferromagnetic shape memory alloys SO PROCEEDINGS OF THE 2016 4TH INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS AND INFORMATION TECHNOLOGY PROCESSING (AMITP 2016) SE ACSR-Advances in Comptuer Science Research LA English DT Proceedings Paper CT 4th International Conference on Advanced Materials and Information Technology Processing (AMITP) CY SEP 24-25, 2016 CL Guilin, PEOPLES R CHINA DE ferromagnetic shape memory alloys; annealing; (sic) phase; phase segregation ID SUPERELASTICITY; TRANSFORMATION AB Annealing plays an important role to adjust structures and properties of ferromagnetic shape memory alloys. Thermal annealing effects on structural and magnetic properties of Fe46Mn26Ga28 FSMA have been investigated at different temperatures. Rietveld refinements of neutron diffraction patterns display that the formation of the (SIC) phase in Fe46Mn26Ga28 annealed at 1073 K is Fe-rich Ga-poor cubic phase. The atomic occupancies of the alloys are determined due to the neutron's capability of differentiating transition metals. Different annealing treatment introduces magnetic characteristic that is associated with distinctive structural changes in crystal. C1 [Yang, Hui; Wang, Yandong] Northeastern Univ, Key Lab Anisotropy & Texture Mat, Shenyang 110819, Peoples R China. [An, Ke] Oak Ridge Natl Lab, Chem & Engn Mat Div, Oak Ridge, TN 37831 USA. RP Yang, H (reprint author), Northeastern Univ, Key Lab Anisotropy & Texture Mat, Shenyang 110819, Peoples R China. EM freedomyahu@163.com; ydwang@mail.neu.edu.cn; kean@ornl.gov NR 18 TC 0 Z9 0 U1 0 U2 0 PU ATLANTIS PRESS PI PARIS PA 29 AVENUE LAVMIERE, PARIS, 75019, FRANCE SN 2352-538X BN 978-94-6252-245-9 J9 ACSR ADV COMPUT PY 2016 VL 60 BP 167 EP 173 PG 7 WC Computer Science, Interdisciplinary Applications; Engineering, Multidisciplinary; Materials Science, Multidisciplinary SC Computer Science; Engineering; Materials Science GA BG6HT UT WOS:000390300600033 ER PT J AU Marrinan, T Forbes, A Renambot, L Jones, S Leigh, J Johnson, A AF Marrinan, Thomas Forbes, Angus Renambot, Luc Jones, Steve Leigh, Jason Johnson, Andrew GP ACM TI Synchronized Mixed Presence Data-Conferencing Using Large-Scale Shared Displays SO PROCEEDINGS OF THE 2016 ACM INTERNATIONAL CONFERENCE ON INTERACTIVE SURFACES AND SPACES, (ISS 2016) LA English DT Proceedings Paper CT ACM International Conference on Interactive Surfaces and Spaces (ISS) CY NOV 06-09, 2016 CL Niagara Falls, CANADA SP Assoc Comp Machinery, ACM SIGCHI, Microsoft, Univ Waterloo DE Mixed presence collaboration; computer-supported cooperative work; large-scale displays; multi-user interaction; data synchronization AB Real world group-to-group collaboration often occurs between partially distributed interdisciplinary teams, with each discipline working in a unique environment suited for its needs. Groupware must be flexible so that it can be incorporated into a variety of workspaces in order to successfully facilitate this type of mixed presence collaboration. We have developed two new techniques for sharing and synchronizing multi-user applications between heterogeneous large-scale shared displays. The first new technique partitions displays into a perfectly mirrored public space and a local private space. The second new technique enables user-controlled partial synchronization, where different attributes of an application can be synchronized or controlled independently. This paper presents two main contributions of our work: 1) identifying deficiencies in current groupware for interacting with data during mixed presence collaboration, and 2) developing two multi-user data synchronization techniques to address these deficiencies and extend current collaborative infrastructure for large-scale shared displays. C1 [Marrinan, Thomas] Argonne Natl Lab, 9700 Cass Ave, Lemont, IL 60439 USA. [Forbes, Angus; Renambot, Luc; Jones, Steve; Johnson, Andrew] Univ Illinois, 851 S Morgan St, Chicago, IL 60607 USA. [Leigh, Jason] Univ Hawaii Manoa, 2500 Campus Rd, Manoa, HI 96822 USA. RP Marrinan, T (reprint author), Argonne Natl Lab, 9700 Cass Ave, Lemont, IL 60439 USA. EM tmarrinan@anl.gov; aforbes@uic.edu; renambot@uic.edu; sjones@uic.edu; leighj@hawaii.edu; ajohnson@uic.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 978-1-4503-4248-3 PY 2016 BP 355 EP 360 DI 10.1145/2992154.2996780 PG 6 WC Computer Science, Hardware & Architecture SC Computer Science GA BG6HB UT WOS:000390297200044 ER PT J AU Marrinan, T Rizzi, S Nishimoto, A Johnson, A Insley, JA Papka, ME AF Marrinan, Thomas Rizzi, Silvio Nishimoto, Arthur Johnson, Andrew Insley, Joseph A. Papka, Michael E. GP ACM TI Interactive Multi-Modal Display Spaces for Visual Analysis SO PROCEEDINGS OF THE 2016 ACM INTERNATIONAL CONFERENCE ON INTERACTIVE SURFACES AND SPACES, (ISS 2016) LA English DT Proceedings Paper CT ACM International Conference on Interactive Surfaces and Spaces (ISS) CY NOV 06-09, 2016 CL Niagara Falls, CANADA SP Assoc Comp Machinery, ACM SIGCHI, Microsoft, Univ Waterloo DE Multiple Display Environments; multi-user interaction; collaboration; input devices; large-scale displays; virtual reality; multi-touch screens; motion capture AB Classic visual analysis relies on a single medium for displaying and interacting with data. Large-scale tiled display walls, virtual reality using head-mounted displays or CAVE systems, and collaborative touch screens have all been utilized for data exploration and analysis. We present our initial findings of combining numerous display environments and input modalities to create an interactive multi-modal display space that enables researchers to leverage various pieces of technology that will best suit specific sub-tasks. Our main contributions are 1) the deployment of an input server that interfaces with a wide array of interaction devices to create a single uniform stream of data usable by custom visual applications, and 2) three real-world use cases of leveraging multiple display environments in conjunction with one another to enhance scientific discovery and data dissemination. C1 [Marrinan, Thomas; Rizzi, Silvio; Insley, Joseph A.; Papka, Michael E.] Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA. [Nishimoto, Arthur; Johnson, Andrew] Univ Illinois, Chicago, IL 60680 USA. [Papka, Michael E.] Northern Illinois Univ, De Kalb, IL 60115 USA. RP Marrinan, T (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA. EM tmarrinan@anl.gov; srizzi@alcf.anl.gov; anishi2@uic.edu; ajohnson@uic.edu; insley@anl.gov; papka@anl.gov NR 10 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 978-1-4503-4248-3 PY 2016 BP 421 EP 426 DI 10.1145/2992154.2996792 PG 6 WC Computer Science, Hardware & Architecture SC Computer Science GA BG6HB UT WOS:000390297200055 ER PT J AU Sreepathi, S D'Azevedo, E Philip, B Worley, P AF Sreepathi, Sarat D'Azevedo, Ed Philip, Bobby Worley, Patrick GP ACM TI Communication Characterization and Optimization of Applications Using Topology-Aware Task Mapping on Large Supercomputers SO PROCEEDINGS OF THE 2016 ACM/SPEC INTERNATIONAL CONFERENCE ON PERFORMANCE ENGINEERING (ICPE'16) LA English DT Proceedings Paper CT 7th ACM/SPEC International Conference on Performance Engineering (ICPE) CY MAR 12-16, 2016 CL Delft, NETHERLANDS SP Assoc Comp Machinery, SPEC, ACM SIGMETRICS, ACM Special Interest Grp Software Engn, Distributed Syst Grp DE Communication Characterization; Reordering algorithms; Topology-Aware Optimization AB On large supercomputers, the job scheduling systems may assign a non-contiguous node allocation for user applications depending on available resources. With parallel applications using MPI (Message Passing Interface), the default process ordering does not take into account the actual physical node layout available to the application. This contributes to non-locality in terms of physical network topology and impacts communication performance of the application. In order to mitigate such performance penalties, this work describes techniques to identify suitable task mapping that takes the layout of the allocated nodes as well as the application's communication behavior into account. During the first phase of this research, we instrumented and collected performance data to characterize communication behavior of critical US DOE (United States - Department of Energy) applications using an augmented version of the mpiP tool. Subsequently, we developed several reordering methods (spectral bisection, neighbor join tree etc.) to combine node layout and application communication data for optimized task placement. We developed a tool called mpiAproxy to facilitate detailed evaluation of the various reordering algorithms without requiring full application executions. This work presents a comprehensive performance evaluation (14,000 experiments) of the various task mapping techniques in lowering communication costs on Titan, the leadership class supercomputer at Oak Ridge National Laboratory. C1 [Sreepathi, Sarat; D'Azevedo, Ed; Philip, Bobby; Worley, Patrick] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. RP Sreepathi, S (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. EM sarat@ornl.gov; dazevedoef@ornl.gov; philipb@ornl.gov; worleyph@ornl.gov NR 25 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 978-1-4503-4080-9 PY 2016 BP 225 EP 236 DI 10.1145/2851553.2851575 PG 12 WC Computer Science, Software Engineering; Computer Science, Theory & Methods SC Computer Science GA BG5YX UT WOS:000389809200033 ER PT J AU Lavrijsen, W Iancu, C de Jong, W Chen, X Schwan, K AF Lavrijsen, Wim Iancu, Costin de Jong, Wibe Chen, Xin Schwan, Karsten GP ACM TI Exploiting Variability for Energy Optimization of Parallel Programs SO PROCEEDINGS OF THE ELEVENTH EUROPEAN CONFERENCE ON COMPUTER SYSTEMS, (EUROSYS 2016) LA English DT Proceedings Paper CT 11th European Conference on Computer Systems (EuroSys) CY APR 18-21, 2016 CL Imperial Coll London, London, ENGLAND SP ACM Eurosys, Usenix, ACM HO Imperial Coll London ID SYSTEMS AB In this paper we present optimizations that use DVFS mechanisms to reduce the total energy usage in scientific applications. Our main insight is that noise is intrinsic to large scale parallel executions and it appears whenever shared resources are contended. The presence of noise allows us to identify and manipulate any program regions amenable to DVFS. When compared to previous energy optimizations that make per core decisions using predictions of the running time, our scheme uses a qualitative approach to recognize the signature of executions amenable to DVFS. By recognizing the "shape of variability" we can optimize codes with highly dynamic behavior, which pose challenges to all existing DVFS techniques. We validate our approach using offline and online analyses for one-sided and two-sided communication paradigms. We have applied our methods to NWChem, and we show best case improvements in energy use of 12% at no loss in performance when using online optimizations running on 720 Haswell cores with one-sided communication. With NWChem on MPI two-sided and offline analysis, capturing the initialization, we find energy savings of up to 20%, with less than 1% performance cost. C1 [Lavrijsen, Wim; Iancu, Costin; de Jong, Wibe] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. [Chen, Xin; Schwan, Karsten] Georgia Inst Technol, Atlanta, GA 30332 USA. RP Lavrijsen, W (reprint author), Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. EM wlavrijsen@Ibl.gov; cciancu@Ibl.gov; wadejong@Ibl.gov; xchen384@gatech.edu; schwan@gatech.edu NR 24 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 978-1-4503-4240-7 PY 2016 DI 10.1145/2901318.2901329 PG 16 WC Computer Science, Theory & Methods SC Computer Science GA BG6LG UT WOS:000390471400009 ER PT J AU Budiardja, RD Agrawal, K Fahey, M McLay, R James, D AF Budiardja, Reuben D. Agrawal, Kapil Fahey, Mark McLay, Robert James, Doug GP ACM TI Library Function Tracking with XALT SO PROCEEDINGS OF XSEDE16: DIVERSITY, BIG DATA, AND SCIENCE AT SCALE LA English DT Proceedings Paper CT Conference on Diversity, Big Data, and Science at Scale (XSEDE) CY JUL 17-21, 2016 CL Miami, FL SP Intel, Dell, Hewlett Packard Enterprise, Cray, DataDirect Networks, Aeon Comp, Coalit Acad Sci Computat, Convergent Sci, Internet2, NVIDIA, OmniBond, San Diego Supercomputer Ctr, Adapt Comp, Allinea, D Wave, Gen Atom, Georgia State Univ, Indiana Univ, Pervas Technol Inst, iRODS, Lenovo, Assoc Comp Machinery DE XALT user environment; library tracking; job analytics; software survey AB XALT is a tracking tool that collects accurate, detailed, and continuous job-level and link-time data. XALT stores that data in a database and ensures that all the data collection is transparent to the users. XALT tracks libraries and object files linked by the application. A recent feature improvement in XALT enable it to also track external subroutines and functions called by an application. This paper describes the function-tracking implementation in XALT and showcases the kind of data and analysis that becomes available from this new feature. A recently developed web-based interface to XALT database is also described, allowing the staffs of a supercomputing center to more easily understand software usage on their compute resources. C1 [Budiardja, Reuben D.; Agrawal, Kapil] Univ Tennessee, Knoxville, TN 37996 USA. [Fahey, Mark] Argonne Natl Lab, Argonne, IL 60439 USA. [McLay, Robert; James, Doug] Texas Adv Comp Ctr, Austin, TX USA. RP Budiardja, RD (reprint author), Univ Tennessee, Knoxville, TN 37996 USA. EM reubendb@utk.edu; kagrawa1@vols.utk.edu; mfahey@anl.gov; mclay@tacc.utexas.edu; djames@tacc.utexas.edu NR 5 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 978-1-4503-4755-6 PY 2016 DI 10.1145/2949550.2949558 PG 7 WC Computer Science, Information Systems; Computer Science, Interdisciplinary Applications SC Computer Science GA BG6IH UT WOS:000390305000030 ER PT J AU Chard, K Tuecke, S Foster, I AF Chard, Kyle Tuecke, Steven Foster, Ian GP ACM TI Globus: Recent Enhancements and Future Plans SO PROCEEDINGS OF XSEDE16: DIVERSITY, BIG DATA, AND SCIENCE AT SCALE LA English DT Proceedings Paper CT Conference on Diversity, Big Data, and Science at Scale (XSEDE) CY JUL 17-21, 2016 CL Miami, FL SP Intel, Dell, Hewlett Packard Enterprise, Cray, DataDirect Networks, Aeon Comp, Coalit Acad Sci Computat, Convergent Sci, Internet2, NVIDIA, OmniBond, San Diego Supercomputer Ctr, Adapt Comp, Allinea, D Wave, Gen Atom, Georgia State Univ, Indiana Univ, Pervas Technol Inst, iRODS, Lenovo, Assoc Comp Machinery DE Globus; research data management; science as a service AB Globus offers a broad suite of research data management capabilities to the research community as web-accessible services. The initial service, launched in 2010, focused on reliable, high-performance, secure data transfer; since that time, Globus capabilities have been progressively enhanced in response to user demand. In 2015, secure data sharing and publication services were introduced. Other recent enhancements include support for secure HTTP data access, new storage system types (e.g., Amazon S3, HDFS, Ceph), endpoint search, and administrator management. A powerful new authentication and authorization platform service, Globus Auth, addresses identity, credential, and delegation management needs encountered in research environments. New REST APIs allow external and third-party services to leverage Globus data management, authentication, and authorization capabilities as a platform, for example when building research data portals. We describe these and other recent enhancements to Globus, review adoption trends (to date, 40,000 registered users have operated on more than 150PB and 25B files), and present future plans. C1 [Chard, Kyle; Tuecke, Steven; Foster, Ian] Univ Chicago, Computat Inst, Chicago, IL 60637 USA. [Chard, Kyle; Tuecke, Steven; Foster, Ian] Argonne Natl Lab, Argonne, IL 60439 USA. RP Chard, K (reprint author), Univ Chicago, Computat Inst, Chicago, IL 60637 USA.; Chard, K (reprint author), Argonne Natl Lab, Argonne, IL 60439 USA. EM chard@uchicago.edu; tuecke@globus.org; foster@anl.gov NR 19 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 978-1-4503-4755-6 PY 2016 DI 10.1145/2949550.2949554 PG 8 WC Computer Science, Information Systems; Computer Science, Interdisciplinary Applications SC Computer Science GA BG6IH UT WOS:000390305000027 ER PT J AU Hazlewood, V Benninger, K Peterson, G Charcalla, J Sparks, B Hanley, J Adams, A Learn, B Budden, R Simmel, D Lappa, J Yanovich, J AF Hazlewood, Victor Benninger, Kathy Peterson, Greg Charcalla, Jason Sparks, Benny Hanley, Jesse Adams, Andrew Learn, Bryan Budden, Robert Simmel, Derek Lappa, Joseph Yanovich, Jared GP ACM TI Developing Applications with Networking Capabilities via End-to-End SDN (DANCES) SO PROCEEDINGS OF XSEDE16: DIVERSITY, BIG DATA, AND SCIENCE AT SCALE LA English DT Proceedings Paper CT Conference on Diversity, Big Data, and Science at Scale (XSEDE) CY JUL 17-21, 2016 CL Miami, FL SP Intel, Dell, Hewlett Packard Enterprise, Cray, DataDirect Networks, Aeon Comp, Coalit Acad Sci Computat, Convergent Sci, Internet2, NVIDIA, OmniBond, San Diego Supercomputer Ctr, Adapt Comp, Allinea, D Wave, Gen Atom, Georgia State Univ, Indiana Univ, Pervas Technol Inst, iRODS, Lenovo, Assoc Comp Machinery DE OpenFlow; Software-Defined Networking; SDN; Network Performance; Network Quality of Service; QOS; Data transfer; Internet2; XSEDE; network bandwidth reservation; network scheduling AB The Developing Applications with Networking Capabilities via End-to-End SDN (DANCES) project [1] is a collaboration between The University of Tennessee's National Institute for Computational Sciences (UT-NICS), Pittsburgh Supercomputing Center (PSC), Pennsylvania State University (Penn State), the National Center for Supercomputing Applications (NCSA), Texas Advanced Computing Center (TACC), Georgia Institute of Technology ( Georgia Tech), the Extreme Science and Engineering Discovery Environment (XSEDE), and Internet2 to investigate and develop the ability to add network bandwidth scheduling via software-defined networking (SDN) programmability to selected cyberinfrastructure services and applications. DANCES, funded by the National Science Foundation's Campus Cyberinfrastructure Network Infrastructure and Engineering (CC-NIE) program award numbers 1341005, 1340953, and 1340981, has field tested five vendor network devices in order to determine which implements the DANCES requirements of the OpenFlow 1.3 standard to provide the network reservation and rate-limiting capability desired to implement the goals of DANCES. Another key device selection criterion was sufficient packet buffering to handle wide area network flows without excessive packet loss. After selection of the network device a test environment was setup between UT-NICS and PSC to perform SDN tests in a simulated supercomputer center compute and data transfer resource environment. This paper describes the DANCES project, the DANCES OpenFlow 1.3 specification requirements, the determination and acquiring of a sufficient OpenFlow 1.3 network device, the provisioning of a test environment, and the test plan and results obtained so far by the DANCES team. C1 [Hazlewood, Victor; Peterson, Greg; Charcalla, Jason] Univ Tennessee, Natl Inst Computat Sci, Knoxville, TN 37996 USA. [Benninger, Kathy; Adams, Andrew; Learn, Bryan; Budden, Robert; Simmel, Derek] Pittsburgh Supercomp Ctr, Pittsburgh, PA USA. [Sparks, Benny; Hanley, Jesse] Oak Ridge Natl Lab, Natl Ctr Computat Sci, Oak Ridge, TN USA. [Yanovich, Jared] Google Inc, Mountain View, CA USA. RP Hazlewood, V (reprint author), Univ Tennessee, Natl Inst Computat Sci, Knoxville, TN 37996 USA. EM victor@utk.edu; benninger@psc.edu; gdp@utk.edu; jcharcalla@utk.edu; sparksbm@ornl.gov; hanleyja@ornl.gov; akadams@psc.edu; blearn@psc.edu; rbudden@psc.edu; dsimmel@psc.edu; jlappa@gmail.com; jaredyanovich@gmail.com NR 10 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 978-1-4503-4755-6 PY 2016 DI 10.1145/2949550.2949557 PG 7 WC Computer Science, Information Systems; Computer Science, Interdisciplinary Applications SC Computer Science GA BG6IH UT WOS:000390305000029 ER PT J AU McDaniel, T D'Azevedo, E Li, YW Kent, P Wong, M Wong, K AF McDaniel, Tyler D'Azevedo, Ed Li, Ying Wai Kent, Paul Wong, Ming Wong, Kwai GP ACM TI Delayed Update Algorithms for Quantum Monte Carlo Simulation on GPU SO PROCEEDINGS OF XSEDE16: DIVERSITY, BIG DATA, AND SCIENCE AT SCALE LA English DT Proceedings Paper CT Conference on Diversity, Big Data, and Science at Scale (XSEDE) CY JUL 17-21, 2016 CL Miami, FL SP Intel, Dell, Hewlett Packard Enterprise, Cray, DataDirect Networks, Aeon Comp, Coalit Acad Sci Computat, Convergent Sci, Internet2, NVIDIA, OmniBond, San Diego Supercomputer Ctr, Adapt Comp, Allinea, D Wave, Gen Atom, Georgia State Univ, Indiana Univ, Pervas Technol Inst, iRODS, Lenovo, Assoc Comp Machinery DE QMC simulation; emergent platforms; scientific computing AB QMCPACK is open source scientific software designed to perform Quantum Monte Carlo (QMC) simulation, a first-principles method for describing many-body systems. The evaluation of each Monte Carlo move requires finding the determinant of a dense matrix in the wave functions. This calculation forms a key computational kernel in QMCPACK. After each accepted event, the wave function matrix undergoes a rank-one update to represent a single particle move within the system. The matrix inverse is updated via the Sherman-Morrison formula; occasionally, the explicit inverse must be recomputed to maintain numerical stability.; We propose an alternate approach to this kernel that utilizes QR factorization to maintain stability without refactorization. In addition, algorithms based on a novel delayed update scheme are explored in this effort. This strategy enables probability evaluation for multiple successive Monte Carlo moves, with application of accepted moves to the wave function matrix delayed until an event is denied, or a predetermined limit on acceptances p is reached. Accepted events grouped in this manner are then applied to the matrix en bloc with enhanced arithmetic intensity and computational efficiency. Delayed update Sherman-Morrison probability evaluation algorithms with CPU and GPU-accelerated implementations are tested, profiled, and analyzed. A QR based delayed update algorithm remains in development. Results are evaluated against existing methods for numerical stability and efficiency; emphasis is placed on large systems, for which acceleration is critical. C1 [McDaniel, Tyler] UNC Asheville, Asheville, NC 28804 USA. [D'Azevedo, Ed; Li, Ying Wai; Kent, Paul] Oak Ridge Natl Lab, Knoxville, TN USA. [Wong, Ming] USC Columbia, Columbia, SC USA. [Wong, Kwai] Univ Tennessee, Knoxville, TN USA. RP McDaniel, T (reprint author), UNC Asheville, Asheville, NC 28804 USA. EM bmcdanie@unca.edu; dazevedoef@ornl.gov; yingwaili@ornl.gov; kentpr@ornl.gov; wongmy@email.sc.edu; kwong@utk.edu RI Kent, Paul/A-6756-2008 OI Kent, Paul/0000-0001-5539-4017 NR 4 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 978-1-4503-4755-6 PY 2016 DI 10.1145/2949550.2949579 PG 4 WC Computer Science, Information Systems; Computer Science, Interdisciplinary Applications SC Computer Science GA BG6IH UT WOS:000390305000013 ER PT J AU Schmidt, D Chen, WC Ostrouchov, G AF Schmidt, Drew Chen, Wei-Chen Ostrouchov, George GP ACM TI Introducing a New Client/Server Framework for Big Data Analytics with the R Language SO PROCEEDINGS OF XSEDE16: DIVERSITY, BIG DATA, AND SCIENCE AT SCALE LA English DT Proceedings Paper CT Conference on Diversity, Big Data, and Science at Scale (XSEDE) CY JUL 17-21, 2016 CL Miami, FL SP Intel, Dell, Hewlett Packard Enterprise, Cray, DataDirect Networks, Aeon Comp, Coalit Acad Sci Computat, Convergent Sci, Internet2, NVIDIA, OmniBond, San Diego Supercomputer Ctr, Adapt Comp, Allinea, D Wave, Gen Atom, Georgia State Univ, Indiana Univ, Pervas Technol Inst, iRODS, Lenovo, Assoc Comp Machinery DE R; Analytics; Remote Computing; Big Data AB Historically, large scale computing and interactivity have been at odds. This is a particularly sore spot for data analytics applications, which are typically interactive in nature. To help address this problem, we introduce a new client/server framework for the R language. This framework allows the R programmer to remotely control anywhere from one to thousands of batch servers running as cooperating instances of R. And all of this is done from the user's local R session. Additionally, no specialized software environment is needed; the framework is a series of R packages, available from CRAN. The communication between client and server(s) is handled by the well-known ZeroMQ library. To handle server side computations, we use our established pbdR packages for large scale distributed computing. These packages utilize HPC standards like MPI and ScaLAPACK to handle complex, tightly-coupled computations on large datasets. In this paper, we outline the new client/server architecture components, discuss the pros and cons to this approach, and provide several example workflows that bring interactivity to potentially terabyte size computations. C1 [Schmidt, Drew] Univ Tennessee, Knoxville, TN 37996 USA. [Chen, Wei-Chen] PbdR Core Team, Silver Spring, MD USA. [Ostrouchov, George] Oak Ridge Natl Lab, Oak Ridge, TN USA. RP Schmidt, D (reprint author), Univ Tennessee, Knoxville, TN 37996 USA. EM wrathematics@gmail.com; wccsnow@gmail.com; ostrouchovg@ornl.gov NR 35 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 978-1-4503-4755-6 PY 2016 DI 10.1145/2949550.2949651 PG 9 WC Computer Science, Information Systems; Computer Science, Interdisciplinary Applications SC Computer Science GA BG6IH UT WOS:000390305000038 ER PT J AU Vanloo, G Ng, C Osborne, K Wong, K Ramsey, B Wang, DL Bao, ZR AF Vanloo, Gerard Ng, Chung Osborne, Kison Wong, Kwai Ramsey, Ben Wang, Dali Bao, Zhirong GP ACM TI Using High Performance Computing To Model Cellular Embryogenesis SO PROCEEDINGS OF XSEDE16: DIVERSITY, BIG DATA, AND SCIENCE AT SCALE LA English DT Proceedings Paper CT Conference on Diversity, Big Data, and Science at Scale (XSEDE) CY JUL 17-21, 2016 CL Miami, FL SP Intel, Dell, Hewlett Packard Enterprise, Cray, DataDirect Networks, Aeon Comp, Coalit Acad Sci Computat, Convergent Sci, Internet2, NVIDIA, OmniBond, San Diego Supercomputer Ctr, Adapt Comp, Allinea, D Wave, Gen Atom, Georgia State Univ, Indiana Univ, Pervas Technol Inst, iRODS, Lenovo, Assoc Comp Machinery DE RepastHPC; Parallel Programing; C. elegans; VisIt; NetLogo; Simulation AB C. elegans is a primitive multicellular organism (worm) that shares many important biological characteristics that arise as complications within human beings. [1] It begins as a single cell and then undergoes a complex embryogenesis to form a complete animal. Using experimental data, the early stages of life of the cells are simulated by computers. The goal of this project is to use this simulation to compare the embryogenesis stage of C. elegans cells with that of human cells. Since the simulation involves the manipulation of many files and large amounts of data, the power provided by supercomputers and parallel programming is required. C1 [Vanloo, Gerard; Ng, Chung; Osborne, Kison] Morehouse Coll, 830 Westview Dr SW, Atlanta, GA 30314 USA. [Wong, Kwai; Ramsey, Ben] Univ Tennessee, Knoxville, TN 37996 USA. [Wang, Dali] Oak Ridge Natl Lab, 1 Bethel Valley Rd, Oak Ridge, TN 37831 USA. [Bao, Zhirong] Mem Sloan Kettering Canc Ctr, 1275 York Ave, New York, NY 10065 USA. RP Vanloo, G (reprint author), Morehouse Coll, 830 Westview Dr SW, Atlanta, GA 30314 USA. EM gerard.vanloo0@gmail.com; chung.ng@morehouse.edu; ozuboon95@gmail.com; kwong@utk.edu; bramsel0@vols.utk.edu; wangd@ornl.gov; baoz@mskcc.org NR 5 TC 0 Z9 0 U1 2 U2 2 PU ASSOC COMPUTING MACHINERY PI NEW YORK PA 1515 BROADWAY, NEW YORK, NY 10036-9998 USA BN 978-1-4503-4755-6 PY 2016 DI 10.1145/2949550.2949576 PG 4 WC Computer Science, Information Systems; Computer Science, Interdisciplinary Applications SC Computer Science GA BG6IH UT WOS:000390305000012 ER PT S AU Marti, GE Stamper-Kurn, DM AF Marti, G. Edward Stamper-Kurn, D. M. BE Inguscio, M Ketterle, W Stringari, S Roati, G TI Spinor Bose-Einstein gases SO QUANTUM MATTER AT ULTRALOW TEMPERATURES SE Proceedings of the International School of Physics Enrico Fermi LA English DT Proceedings Paper CT 191st International School of Physics Enrico Fermi of the Italian-Physical-Society on Quantum Matter at Ultralow Temperatures CY JUL 07-15, 2014 CL Varenna, ITALY SP Italian Phys Soc ID SPONTANEOUS SYMMETRY-BREAKING; SUPERFLUID-HELIUM; MAGNETIC-FIELD; LIQUID-HELIUM; EDGE STATES; CONDENSATE; DYNAMICS; TEMPERATURE; SCATTERING; VORTICES AB In a spinor Bose-Einstein gas, the non-zero hyperfine spin of the gas becomes an accessible degree of freedom. At low temperature, such a gas shows both magnetic and superfluid order, and undergoes both density and spin dynamics. These lecture notes present a general overview of the properties of spinor Bose-Einstein gases. The notes are divided in five sections. In the first, we summarize basic properties of multi-component quantum fluids, focusing on the specific case of spinor Bose-Einstein gases and the role of rotational symmetry in defining their properties. Second, we consider the magnetic state of a spinor Bose-Einstein gas, highlighting effects of thermodynamics and Bose-Einstein statistics and also of spin-dependent interactions between atoms. In the third section, we discuss methods for measuring the properties of magnetically ordered quantum gases and present newly developed schemes for spin-dependent imaging. We then discuss the dynamics of spin mixing in which the spin composition of the gas evolves through the spin-dependent interactions within the gas. We discuss spin mixing first from a microscopic perspective, and then advance to discussing collective and beyond-mean-field dynamics. The fifth section reviews recent studies of the magnetic excitations of quantum-degenerate spinor Bose gases. We conclude with some perspectives on future directions for research. C1 [Marti, G. Edward] NIST, JILA, Boulder, CO 80309 USA. [Marti, G. Edward] Univ Colorado, Boulder, CO 80309 USA. [Marti, G. Edward] Univ Colorado, Dept Phys, Boulder, CO 80309 USA. [Stamper-Kurn, D. M.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [Stamper-Kurn, D. M.] Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA. RP Marti, GE (reprint author), NIST, JILA, Boulder, CO 80309 USA.; Marti, GE (reprint author), Univ Colorado, Boulder, CO 80309 USA.; Marti, GE (reprint author), Univ Colorado, Dept Phys, Boulder, CO 80309 USA. NR 116 TC 0 Z9 0 U1 3 U2 3 PU IOS PRESS PI AMSTERDAM PA NIEUWE HEMWEG 6B, 1013 BG AMSTERDAM, NETHERLANDS SN 0074-784X BN 978-1-61499-694-1; 978-1-61499-693-4 J9 P INT SCH PHYS PY 2016 VL 191 BP 221 EP 297 DI 10.3254/978-1-61499-694-1-221 PG 77 WC Physics, Condensed Matter SC Physics GA BG6IR UT WOS:000390308600004 ER PT S AU Buric, M Ohodnicki, P Yan, A Huang, S Chen, KP AF Buric, M. Ohodnicki, P. Yan, A. Huang, S. Chen, K. P. BE Ardanuy, PE Puschell, JJ TI Distributed fiber-optic sensing in a high-temperature solid-oxide fuel cell SO REMOTE SENSING SYSTEM ENGINEERING VI SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Remote Sensing System Engineering VI as a part of the SPIE Optics+Photonics Symposium on Remote Sensing Track of Optical Engineering+Applications CY AUG 31-SEP 01, 2016 CL San Diego, CA SP SPIE DE Solid oxide fuel cell; distributed sensing; fiber optic sensors; gradient sensing AB High temperature solid-oxide fuel cells (SOFCs) present a challenging harsh environment for sensor systems with temperatures above 800C and ambient hydrogen concentration potentially ranging from 0-100% across the cell's anode. A strong gradient exists in both gas concentration and temperature from the fuel-inlet to outlet as fuel is consumed across the cell. We report a technique for measuring the spatial distribution of temperature along a solid-oxide fuel-cell interconnect channel using a distributed interrogation system coupled with a single-mode fiber optic thin-film evanescent wave absorption sensor. These sensors are to be operated inside an operating fuel-cell stack yielding spatially distributed measurements with sub-millimeter accuracy. Details are presented pertinent to the stable operation of silica optical fibers in the presence of high hydrogen concentration which can induce optical fiber losses. The stability of Rayleigh scattering centers is discussed with regard to the operational environment. The potential for extension of the approach to chemical (i.e. hydrogen) sensing as well as dual hydrogen/temperature sensor fabrication and stabilization are also briefly discussed. C1 [Buric, M.; Ohodnicki, P.] Natl Energy Technol Lab, 3610 Collins Ferry Rd, Morgantown, WV 26505 USA. [Yan, A.; Huang, S.; Chen, K. P.] Univ Pittsburgh, Dept Elect & Comp Engn, 3700 OHara St, Pittsburgh, PA 15261 USA. RP Buric, M (reprint author), Natl Energy Technol Lab, 3610 Collins Ferry Rd, Morgantown, WV 26505 USA. EM Michael.buric@netl.doe.gov NR 16 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 978-1-5106-0345-5; 978-1-5106-0346-2 J9 PROC SPIE PY 2016 VL 9977 AR UNSP 997708 DI 10.1117/12.2238534 PG 11 WC Remote Sensing SC Remote Sensing GA BG6GG UT WOS:000390271100004 ER PT J AU Mittal, S Vetter, JS AF Mittal, Sparsh Vetter, Jeffrey S. GP IEEE TI Reducing Soft-error Vulnerability of Caches using Data Compression SO 2016 INTERNATIONAL GREAT LAKES SYMPOSIUM ON VLSI (GLSVLSI) LA English DT Proceedings Paper CT 26th ACM Great Lakes Symposium on VLSI (GLSVLSI) CY MAY 18-20, 2016 CL Boston Univ, Dept Elect & Comp Engn, Boston, MA SP Assoc Comp Machinery, ACM SIGSAC, IEEE, IEEE Council Elect Design Automat, Cadence, Living Comp Project, ACM Special Intrest Grp Design Automat HO Boston Univ, Dept Elect & Comp Engn DE Reliability; resilience; fault-tolerance; soft/transient error; cache; vulnerability; data compression AB With ongoing chip miniaturization and voltage scaling, particle strike-induced soft errors present increasingly severe threat to the reliability of on-chip caches. In this paper, we present a technique to reduce the vulnerability of caches to soft-errors. Our technique uses data compression to reduce the number of vulnerable data bits in the cache and performs selective duplication of more critical data-bits to provide extra protection to them. Microarchitectural simulations have shown that our technique is effective in reducing cache vulnerability and outperforms another technique. For single and dual-core system configuration, the average reduction in cache vulnerability is 5.59x and 8.44x, respectively. Also, the implementation and performance overheads of our technique are minimal and it is useful for a broad range of workloads. C1 [Mittal, Sparsh; Vetter, Jeffrey S.] Oak Ridge Natl Lab, Oak Ridge, TN 37830 USA. RP Mittal, S (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37830 USA. EM mittals@ornl.gov; yetter@ornl.gov 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 978-1-4503-4274-2 PY 2016 BP 197 EP 202 DI 10.1145/2902961.2902977 PG 6 WC Computer Science, Hardware & Architecture; Computer Science, Theory & Methods SC Computer Science GA BG5UY UT WOS:000389775900036 ER PT S AU Buraczynski, M Gandolfi, S Gezerlis, A Schwenk, A Tews, I AF Buraczynski, M. Gandolfi, S. Gezerlis, A. Schwenk, A. Tews, I. BE Krotscheck, E Ortiz, G TI Neutron matter with Quantum Monte Carlo: chiral 3N forces and static response SO 18TH INTERNATIONAL CONFERENCE ON RECENT PROGRESS IN MANY-BODY THEORIES (MBT18) SE Journal of Physics Conference Series LA English DT Proceedings Paper CT 18th International Conference on Recent Progress in Many-Body Theories (MBT) CY AUG 16-21, 2015 CL Niagara Falls, NY ID NUCLEAR-FORCES AB Neutron matter is related to the physics of neutron stars and that of neutron rich nuclei. Quantum Monte Carlo (QMC) methods offer a unique way of solving the many body problem non-perturbatively, providing feedback on features of nuclear interactions and addressing scenarios that are inaccessible to other approaches. In this contribution we go over two recent accomplishments in the theory of neutron matter: a) the fusing of QMC with chiral effective field theory interactions, focusing on local chiral 3N forces, and b) the first attempt to find an ab initio solution to the problem of static response. C1 [Buraczynski, M.; Gezerlis, A.] Univ Guelph, Dept Phys, Guelph, ON N1G 2W1, Canada. [Gandolfi, S.] Los Alamos Natl Lab, Theoret Div, Los Alamos, NM 87545 USA. [Schwenk, A.; Tews, I.] Tech Univ Darmstadt, Inst Kernphys, D-64289 Darmstadt, Germany. [Schwenk, A.; Tews, I.] GSI Helmholtzzentrum Schwerionenforsch, GmbH, ExtreMe Matter Inst EMMI, D-64291 Darmstadt, Germany. RP Buraczynski, M (reprint author), Univ Guelph, Dept Phys, Guelph, ON N1G 2W1, Canada. OI Gandolfi, Stefano/0000-0002-0430-9035 NR 34 TC 0 Z9 0 U1 1 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 2016 VL 702 AR UNSP 012014 DI 10.1088/1742-6596/702/1/012014 PG 7 WC Physics, Condensed Matter; Physics, Particles & Fields; Physics, Mathematical SC Physics GA BG5TW UT WOS:000389756000014 ER PT J AU Muller, G Dagli, C AF Muller, George Dagli, Cihan GP IEEE TI Simulation for a Coevolved System-of-Systems Meta-Architecture SO 2016 11TH SYSTEMS OF SYSTEM ENGINEERING CONFERENCE (SOSE), IEEE LA English DT Proceedings Paper CT 11th IEEE System of Systems Engineering Conference (SoSE) CY JUN 12-16, 2016 CL Kongsberg, NORWAY SP IEEE ID EVOLUTION AB The increasing complexity of modern systems poses challenges for understanding how these systems can be designed to best operate. Uncertainties in the operating environment and coevolution contribute to such complexity. This paper describes the simulation of a counter-trafficking system-of-systems that has undergone competitive coevolution. A notional future meta-architecture, consisting of manned and unmanned air and maritime systems, is also presented. The logic driving the model is summarized, and preliminary results are presented. The results identify driving factors of system performance, highlighting those outside the direct control of system designers or operators. These results help systems engineers better plan future system-of-system capabilities. C1 [Muller, George] Pacific NW Natl Lab, Richland, WA 99352 USA. [Dagli, Cihan] Missouri Univ Sci & Technol, Rolla, MO 65409 USA. RP Muller, G (reprint author), Pacific NW Natl Lab, Richland, WA 99352 USA. EM george.muller@pnnl.gov; dagli@mst.edu NR 16 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-4673-8727-9 PY 2016 PG 6 WC Computer Science, Software Engineering; Engineering, Multidisciplinary; Operations Research & Management Science SC Computer Science; Engineering; Operations Research & Management Science GA BG5WB UT WOS:000389776900045 ER PT S AU Subramania, G Fischer, AJ Anderson, PD Koleske, DD AF Subramania, Ganapathi Fischer, Arthur J. Anderson, P. Duke Koleske, Daniel D. GP IEEE TI Deterministically Placed Quantum Dots for Quantum Nanophotonics SO 2016 18TH INTERNATIONAL CONFERENCE ON TRANSPARENT OPTICAL NETWORKS (ICTON) SE International Conference on Transparent Optical Networks-ICTON LA English DT Proceedings Paper CT 18th International Conference on Transparent Optical Networks (ICTON) CY JUL 10-14, 2016 CL Univ Trento, Fac Letters & Philosophy, Trento, ITALY SP IEEE Photon Soc HO Univ Trento, Fac Letters & Philosophy DE quantum dots; photoelectrochemical etching; photoluminescence ID SINGLE-PHOTON SOURCE AB The ability to achieve deterministic placement of semiconductor quantum dots (QDs) opens up interesting possibilities for nanophotonic devices. By incorporating these QDs within microcavities, light-matter interaction can be tailored and enhanced, enabling phenomenon such as spontaneous emission enhancement, low threshold lasing, single photon emission and strong-coupling. The quality of these phenomena relies on the distribution of emission wavelengths of the emitter dipoles and the strength of their coupling to internal fields of the cavity. Therefore size-controlled fabrication of QDs and their deterministic placement become quite important. In this work we will describe a photoelectrochemical-based etching of III-nitride materials to achieve QDs with uniform emission wavelength. By patterning using electron beam lithography to create a nanopost structure in an epitaxially grown III-nitride based quantum well structure, we will show potential for deterministic placement. The photoluminescence response from the nanopost structure after photoelectrochemical etching reveals sharp lines indicative of quantum dot formation. C1 [Subramania, Ganapathi; Fischer, Arthur J.; Anderson, P. Duke; Koleske, Daniel D.] Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. [Anderson, P. Duke] Univ Southern Calif, Ming Hsieh Dept Elect Engn, Los Angeles, CA 90089 USA. RP Subramania, G (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. EM gssubra@sandia.gov 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 2162-7339 BN 978-1-5090-1467-5 J9 INT C TRANS OPT NETW PY 2016 PG 4 WC Engineering, Electrical & Electronic; Optics; Telecommunications SC Engineering; Optics; Telecommunications GA BG5MG UT WOS:000389537400152 ER PT S AU Back, TC Fairchild, SB Soukiassian, P Berger, MH Martinotti, D Douillard, L Kordesch, M Gruen, G Murray, PT Schmid, AK Chen, G Sayir, A AF Back, Tyson C. Fairchild, Steven B. Soukiassian, Patrick Berger, Marie-Helene Martinotti, Dominique Douillard, Ludovic Kordesch, Martin Gruen, Gregg Murray, P. Terrence Schmid, Andreas K. Chen, Gong Sayir, Ali GP IEEE TI Low Energy Electron Microscopy Study of Directionally Solidified LaB6 -( Zr, V)B-2 Eutectics SO 2016 29TH INTERNATIONAL VACUUM NANOELECTRONICS CONFERENCE (IVNC) SE International Vacuum Nanoelectronics Conference LA English DT Proceedings Paper CT 29th International Vacuum Nanoelectronics Conference (IVNC) CY JUL 11-15, 2016 CL Vancouver, CANADA SP IEEE, IEEE Electron Devices Soc, ZEISS, Modern Electron, Amer Vacuum Soci, Paul Scherrer Inst, Elect & Comp Engn, Univ British Columbia, Peter Wall Inst Adv Studies, Dept Elect & Comp Engn DE Low Energy Electron Microscopy; Eutectic; Lanthanum Hexaboride AB LaB6 eutectic materials show promise as a replacement for common thermionic cathode materials. This eutectic system belongs to a class of materials referred to as directionally solidified eutectics (DSEs). LaB6 DSEs consist of a LaB6 matrix with a second phase, a metal di-boride, forming cylindrical rods in the matrix. Previous investigations on this material were focused on its use as a high temperature structural material. Use as a thermionic emitter remains largely unexplored. C1 [Back, Tyson C.; Gruen, Gregg; Murray, P. Terrence] Univ Dayton Res Inst, 300 Coll Pk, Dayton, OH 45469 USA. [Back, Tyson C.; Fairchild, Steven B.; Gruen, Gregg; Murray, P. Terrence] US Air Force, Res Lab, Mat & Mfg Directorate, 3005 Hobson Way, Wright Patterson AFB, OH 45433 USA. [Soukiassian, Patrick; Martinotti, Dominique; Douillard, Ludovic] Univ Paris Sud Orsay, DSM DRECAM SPCSI, Lab Surfaces & Interfaces Mat Avances Assoc, Commissariat Energie Atom, Batiment 462, F-91191 Gif Sur Yvette, France. [Berger, Marie-Helene] Ecole Mines Paris, Ctr Mat, Evry, France. [Kordesch, Martin] Ohio Univ, Dept Phys & Astron, Athens, OH 45701 USA. [Schmid, Andreas K.; Chen, Gong] Lawrence Berkeley Natl Lab, NCEM Mol Foundry, Berkeley, CA 94720 USA. [Sayir, Ali] NASA, Glenn Res Ctr, Cleveland, OH 44135 USA. RP Back, TC (reprint author), Univ Dayton Res Inst, 300 Coll Pk, Dayton, OH 45469 USA.; Back, TC (reprint author), US Air Force, Res Lab, Mat & Mfg Directorate, 3005 Hobson Way, Wright Patterson AFB, OH 45433 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 2164-2370 BN 978-1-5090-2419-3 J9 INT VACUUM NANOELECT PY 2016 PG 2 WC Engineering, Electrical & Electronic; Nanoscience & Nanotechnology SC Engineering; Science & Technology - Other Topics GA BG5ML UT WOS:000389543500027 ER PT S AU Baryshev, SV Jing, CG Qiu, JQ Antipov, S Jabotinski, V Shao, JH Gai, W Sumant, AV AF Baryshev, Sergey V. Jing, Chunguang Qiu, Jiaqi Antipov, Sergey Jabotinski, Vadim Shao, Jiahang Gai, Wei Sumant, Anirudha V. GP IEEE TI Developing field emission electron sources based on ultrananocrystalline diamond for accelerators SO 2016 29TH INTERNATIONAL VACUUM NANOELECTRONICS CONFERENCE (IVNC) SE International Vacuum Nanoelectronics Conference LA English DT Proceedings Paper CT 29th International Vacuum Nanoelectronics Conference (IVNC) CY JUL 11-15, 2016 CL Vancouver, CANADA SP IEEE, IEEE Electron Devices Soc, ZEISS, Modern Electron, Amer Vacuum Soci, Paul Scherrer Inst, Elect & Comp Engn, Univ British Columbia, Peter Wall Inst Adv Studies, Dept Elect & Comp Engn DE field emission; ultra-nano-crystalline diamond; RF injector; linac AB Radiofrequency (RF) electron guns work by establishing an RF electromagnetic field inside a cavity having conducting walls. Electrons from a cathode are generated in the injector and immediately become accelerated by the RF electric field, and exit the gun as a series of electron bunches. Finding simple solutions for electron injection is a long standing problem. While energies of 30-50 MeV are achievable in linear accelerators (linacs), finding an electron source able to survive under MW electric loads and provide an average current of 1-10 mA is important. Meeting these requirements would open various linac applications for industry. The natural way to simplify and integrate RF injector architectures with the electron source would be to place the source directly into the RF cavity with no need for additional heaters/lasers. Euclid TechLabs in collaboration with Argonne National Lab are prototyping a family of highly effective field emission electron sources based on a nitrogen-incorporated ultrananocrystalline diamond ((N)UNCD) platform. Determined metrics suggest that our emitters are emissive enough to meet requirements for magnetized cooling at electron- ion colliders, linac-based radioisotope production and X-ray sterilization, and others. C1 [Baryshev, Sergey V.; Jing, Chunguang; Qiu, Jiaqi; Antipov, Sergey; Jabotinski, Vadim] Euclid TechLabs LLC, 365 Remington Blvd, Bolingbrook, IL 60440 USA. [Shao, Jiahang; Gai, Wei; Sumant, Anirudha V.] Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA. RP Baryshev, SV (reprint author), Euclid TechLabs LLC, 365 Remington Blvd, Bolingbrook, IL 60440 USA. EM sergey.v.baryshev@gmail.com 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 2164-2370 BN 978-1-5090-2419-3 J9 INT VACUUM NANOELECT PY 2016 PG 2 WC Engineering, Electrical & Electronic; Nanoscience & Nanotechnology SC Engineering; Science & Technology - Other Topics GA BG5ML UT WOS:000389543500028 ER PT J AU Agarwal, S Dickerson, JR Tsao, JY AF Agarwal, Sapan Dickerson, Jeramy R. Tsao, Jeffrey Y. GP IEEE TI Creating Wide Band Gap LEDs Without P-doping SO 2016 74TH ANNUAL DEVICE RESEARCH CONFERENCE (DRC) LA English DT Meeting Abstract CT 74th Annual Device Research Conference (DRC) CY JUN 19-22, 2016 CL University of Delaware, Newark, DE SP IEEE, IEEE Electron Devices Soc HO University of Delaware C1 [Agarwal, Sapan; Dickerson, Jeramy R.; Tsao, Jeffrey Y.] Sandia Natl Labs, Albuquerque, NM 87185 USA. EM sagarwa@sandia.gov 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 978-1-5090-2827-6 PY 2016 PG 2 GA BG5MA UT WOS:000389535400079 ER PT J AU Alexandrou, K Masurkar, A Edrees, H Wishart, JF Hao, YF Petrone, N Hone, J Kymissis, I AF Alexandrou, Konstantinos Masurkar, Amrita Edrees, Hassan Wishart, James F. Hao, Yufeng Petrone, Nicholas Hone, James Kymissis, Ioannis GP IEEE TI Radiation Hardened Graphene Field Effect Transistors SO 2016 74TH ANNUAL DEVICE RESEARCH CONFERENCE (DRC) LA English DT Meeting Abstract CT 74th Annual Device Research Conference (DRC) CY JUN 19-22, 2016 CL University of Delaware, Newark, DE SP IEEE, IEEE Electron Devices Soc HO University of Delaware C1 [Alexandrou, Konstantinos; Masurkar, Amrita; Edrees, Hassan; Kymissis, Ioannis] Columbia Univ, Dept Elect Engn, New York, NY 10027 USA. [Petrone, Nicholas; Hone, James] Columbia Univ, Dept Mech Engn, New York, NY 10027 USA. [Wishart, James F.] Brookhaven Natl Lab, Dept Chem, Upton, NY 11973 USA. EM kka2114@columbia.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 978-1-5090-2827-6 PY 2016 PG 2 GA BG5MA UT WOS:000389535400027 ER PT J AU Baca, AG Armstrong, AM Allerman, AA Douglas, EA Sanchez, CA King, MP Coltrin, ME Nordquist, CD Fortune, TR Kaplar, RJ AF Baca, Albert G. Armstrong, Andrew M. Allerman, Andrew A. Douglas, Erica A. Sanchez, Carlos A. King, Michael P. Coltrin, Michael E. Nordquist, Christopher D. Fortune, Torben R. Kaplar, Robert J. GP IEEE TI An AlN/Al0.85Ga0.15N High Electron Mobility Transistor with a Regrown Ohmic Contact SO 2016 74TH ANNUAL DEVICE RESEARCH CONFERENCE (DRC) LA English DT Meeting Abstract CT 74th Annual Device Research Conference (DRC) CY JUN 19-22, 2016 CL University of Delaware, Newark, DE SP IEEE, IEEE Electron Devices Soc HO University of Delaware C1 [Baca, Albert G.; Armstrong, Andrew M.; Allerman, Andrew A.; Douglas, Erica A.; Sanchez, Carlos A.; King, Michael P.; Coltrin, Michael E.; Nordquist, Christopher D.; Fortune, Torben R.; Kaplar, Robert J.] Sandia Natl Labs, Albuquerque, NM 87185 USA. EM agbaca@sandia.gov NR 3 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-5090-2827-6 PY 2016 PG 2 GA BG5MA UT WOS:000389535400006 ER PT J AU Bajaj, S Akyol, F Krishnamoorthy, S Zhang, YW Armstrong, A Alterman, A Rajan, S AF Bajaj, Sanyam Akyol, Fatih Krishnamoorthy, Sriram Zhang, Yuewei Armstrong, Andrew Alterman, Andrew Rajan, Siddharth GP IEEE TI Ultra-Wide Bandgap AlGaN Channel MISFET with Polarization Engineered Ohmics SO 2016 74TH ANNUAL DEVICE RESEARCH CONFERENCE (DRC) LA English DT Meeting Abstract CT 74th Annual Device Research Conference (DRC) CY JUN 19-22, 2016 CL University of Delaware, Newark, DE SP IEEE, IEEE Electron Devices Soc HO University of Delaware C1 [Bajaj, Sanyam; Akyol, Fatih; Krishnamoorthy, Sriram; Zhang, Yuewei; Rajan, Siddharth] Ohio State Univ, Dept Elect & Comp Engn, Columbus, OH 43210 USA. [Armstrong, Andrew; Alterman, Andrew] Sandia Natl Labs, Albuquerque, NM 87185 USA. EM bajaj.10@osu.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 978-1-5090-2827-6 PY 2016 PG 2 GA BG5MA UT WOS:000389535400005 ER PT J AU Haass, MJ Matzen, LE Butler, KM Armenta, M AF Haass, Michael J. Matzen, Laura E. Butler, Karin M. Armenta, Mika BE Spencer, SN TI A New Method for Categorizing Scanpaths from Eye Tracking Data SO 2016 ACM SYMPOSIUM ON EYE TRACKING RESEARCH & APPLICATIONS (ETRA 2016) LA English DT Proceedings Paper CT 9th Biennial ACM Symposium on Eye Tracking Research and Applications (ETRA) CY MAR 14-17, 2016 CL Charleston, SC SP ACM, ACM SIGGRAPH, ACM SIGCHI DE eye tracking; pattern analysis; scanpath; trajectory analysis method; GazeAppraise ID MOVEMENT PATTERNS; OBSERVERS TASK; YARBUS AB From the seminal work of Yarbus [1967] on the relationship of eye movements to vision, scanpath analysis has been recognized as a window into the mind. Computationally, characterizing the scanpath, the sequential and spatial dependencies between eye positions, has been demanding. We sought a method that could extract scanpath trajectory information from raw eye movement data without assumptions defining fixations and regions of interest. We adapted a set of libraries that perform multidimensional clustering on geometric features derived from large volumes of spatiotemporal data to eye movement data in an approach we call GazeAppraise. To validate the capabilities of GazeAppraise for scanpath analysis, we collected eye tracking data from 41 participants while they completed four smooth pursuit tracking tasks. Unsupervised cluster analysis on the features revealed that 162 of 164 recorded scanpaths were categorized into one of four clusters and the remaining two scanpaths were not categorized (recall/sensitivity=98.8%). All of the categorized scanpaths were grouped only with other scanpaths elicited by the same task (precision=100%). GazeAppraise offers a unique approach to the categorization of scanpaths that may be particularly useful in dynamic environments and in visual search tasks requiring systematic search strategies. C1 [Haass, Michael J.; Matzen, Laura E.; Butler, Karin M.; Armenta, Mika] Sandia Natl Labs, Livermore, CA 94550 USA. RP Haass, MJ (reprint author), Sandia Natl Labs, Livermore, CA 94550 USA. EM mihaass@sandia.gov NR 14 TC 0 Z9 0 U1 1 U2 1 PU ASSOC COMPUTING MACHINERY PI NEW YORK PA 1515 BROADWAY, NEW YORK, NY 10036-9998 USA BN 978-1-4503-4125-7 PY 2016 BP 35 EP 38 DI 10.1145/2857491.2857503 PG 4 WC Computer Science, Artificial Intelligence; Computer Science, Cybernetics SC Computer Science GA BG5ZC UT WOS:000389809700004 ER PT S AU Rua, D Abreu, C Costa, T Heleno, M AF Rua, David Abreu, Claudia Costa, Tiago Heleno, Miguel GP IEEE TI Automation and User Interaction Schemes for Home Energy Management - A Combined Approach SO 2016 IEEE 21ST INTERNATIONAL CONFERENCE ON EMERGING TECHNOLOGIES AND FACTORY AUTOMATION (ETFA) SE IEEE International Conference on Emerging Technologies and Factory Automation-ETFA LA English DT Proceedings Paper CT 21st IEEE International Conference on Emerging Technologies and Factory Automation (ETFA) CY SEP 06-09, 2016 CL OWL Univ Appl Sci, Fraunhofer IOSB INA, Berlin, GERMANY SP IEEE, IES, OWL Univ Appl Sci, Inst Ind Informat Technologies HO OWL Univ Appl Sci, Fraunhofer IOSB INA DE energy optimization; user interface; monitoring; automation; self-learning techniques ID DEMAND-SIDE MANAGEMENT; DESIGN AB This paper presents the development framework for an energy management platform that is being developed within the AnyPLACE project. In order to ensure that end-users become active participants in services like demand response, a combined approach is necessary in terms of monitoring, automation, and user interfacing. The success in engaging the end-user, as the centerpiece of the energy management challenge, is vital in taking advantage of a more efficient use of energy, as it is shown in this paper. The proposed framework can be run in a single board computer. C1 [Rua, David; Abreu, Claudia; Costa, Tiago] INESC TEC, Oporto, Portugal. [Heleno, Miguel] Berkeley Lab, Grid Integrat Grp, Berkeley, CA USA. RP Rua, D (reprint author), INESC TEC, Oporto, Portugal. EM drua@inesctec.pt; claudia.r.abreu@inesctec.pt; tacosta@inesctec.pt; MiguelHeleno@lbl.gov 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 1946-0740 BN 978-1-5090-1314-2 J9 IEEE INT C EMERG PY 2016 PG 5 WC Automation & Control Systems SC Automation & Control Systems GA BG5LB UT WOS:000389524200199 ER PT J AU Minutoli, M Castellana, VG Tumeo, A Lattuada, M Ferrandi, F AF Minutoli, Marco Castellana, Vito Giovanni Tumeo, Antonino Lattuada, Marco Ferrandi, Fabrizio GP IEEE TI A Dynamically Scheduled Architecture for the Synthesis of Graph Database Queries SO 2016 IEEE 24TH ANNUAL INTERNATIONAL SYMPOSIUM ON FIELD-PROGRAMMABLE CUSTOM COMPUTING MACHINES (FCCM) LA English DT Proceedings Paper CT 24th IEEE International Symposium on Field-Programmable Custom Computing Machines (FCCM) CY MAY 01-03, 2016 CL Washington, DC SP IEEE, IEEE Comp Soc, XILINX, Microsoft, Jumptrading, ALTERA, Univ So California, Informat Sci Inst, Google, BittWare, Atomic Rules, ALGO LOGIC, VectorBlox, GRAY RES, Micron C1 [Minutoli, Marco; Castellana, Vito Giovanni; Tumeo, Antonino] Pacific Northwest Natl Lab, 907 Battelle Blvd, Richland, WA 99354 USA. [Lattuada, Marco; Ferrandi, Fabrizio] Politecn Milan, DEIB, Piazza Leonardo Da Vinci 32, I-20133 Milan, Italy. RP Minutoli, M (reprint author), Pacific Northwest Natl Lab, 907 Battelle Blvd, Richland, WA 99354 USA. EM marco.minutoli@pnnl.gov; vitogiovanni.castellana@pnnl.gov; antonino.tumeo@pnnl.gov; marco.lattuada@polimi.it; fabrizio.ferrandi@polimi.it OI Ferrandi, Fabrizio/0000-0003-0301-4419 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 978-1-5090-2356-1 PY 2016 BP 136 EP 136 DI 10.1109/FCCM.2016.41 PG 1 WC Computer Science, Information Systems; Computer Science, Theory & Methods SC Computer Science GA BG5OL UT WOS:000389602200032 ER PT J AU Bornand, NJ Balakireva, L Van de Sompel, H AF Bornand, Nicolas J. Balakireva, Lyudmila Van de Sompel, Herbert GP IEEE TI Routing Memento Requests Using Binary Classifiers SO 2016 IEEE/ACM JOINT CONFERENCE ON DIGITAL LIBRARIES (JCDL) LA English DT Proceedings Paper CT 16th ACM/IEEE-CS Joint Conference on Digital Libraries (JCDL) CY JUN 19-23, 2016 CL Newark, NJ SP Assoc Comp Machinery, ACM Special Interest Grp Informat Retrieval, ACM SIGWEB, IEEE TCDL, Rutgers Inst Data Sci Learning & Applicat, Univ Maryland Baltimore Cty, Univ Pittsburgh, Sch Informat Sci, IEEE Comp Soc AB The Memento protocol provides a uniform approach to query individual web archives. Soon after its emergence, Memento Aggregator infrastructure was introduced that supports querying across multiple archives simultaneously. An Aggregator generates a response by issuing the respective Memento request against each of the distributed archives it covers. As the number of archives grows, it becomes increasingly challenging to deliver aggregate responses while keeping response times and computational costs under control. Ad-hoc heuristic approaches have been introduced to address this challenge and research has been conducted aimed at optimizing query routing based on archive profiles. In this paper, we explore the use of binary, archive-specific classifiers generated on the basis of the content cached by an Aggregator, to determine whether or not to query an archive for a given URI. Our results turn out to be readily applicable and can help to significantly decrease both the number of requests and the overall response times without compromising on recall. We find, among others, that classifiers can reduce the average number of requests by 77% compared to a brute force approach on all archives, and the overall response time by 42% while maintaining a recall of 0.847. C1 [Bornand, Nicolas J.; Balakireva, Lyudmila; Van de Sompel, Herbert] Los Alamos Natl Lab, Los Alamos, NM 87544 USA. RP Bornand, NJ (reprint author), Los Alamos Natl Lab, Los Alamos, NM 87544 USA. EM nbornand@lanl.gov; ludab@lanl.gov; herbertv@lanl.gov 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 978-1-4503-4229-2 PY 2016 BP 63 EP 72 DI 10.1145/2910896.2910899 PG 10 WC Computer Science, Interdisciplinary Applications SC Computer Science GA BG5HY UT WOS:000389502300012 ER PT S AU Skau, E Wohlberg, B Krim, H Dai, LY AF Skau, Erik Wohlberg, Brendt Krim, Hamid Dai, Liyi GP IEEE TI PANSHARPENING VIA COUPLED TRIPLE FACTORIZATION DICTIONARY LEARNING SO 2016 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING PROCEEDINGS SE International Conference on Acoustics Speech and Signal Processing ICASSP LA English DT Proceedings Paper CT IEEE International Conference on Acoustics, Speech, and Signal Processing CY MAR 20-25, 2016 CL Shanghai, PEOPLES R CHINA SP Inst Elect & Elect Engineers, Inst Elect & Elect Engineers Signal Proc Soc DE data fusion; dictionary learning; pansharpening; hyperspectral AB Data fusion is the operation of integrating data from different modalities to construct a single consistent representation. This paper proposes variations of coupled dictionary learning through an additional factorization. One variation of this model is applicable to the pansharpening data fusion problem. Real world pansharpening data was applied to train and test our proposed formulation. The results demonstrate that the data fusion model can successfully be applied to the pansharpening problem. C1 [Skau, Erik; Krim, Hamid; Dai, Liyi] North Carolina State Univ, Raleigh, NC 27695 USA. [Wohlberg, Brendt] Los Alamos Natl Lab, Los Alamos, NM 87544 USA. RP Skau, E (reprint author), North Carolina State Univ, Raleigh, NC 27695 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 1520-6149 BN 978-1-4799-9988-0 J9 INT CONF ACOUST SPEE PY 2016 BP 1234 EP 1237 PG 4 WC Acoustics; Engineering, Electrical & Electronic SC Acoustics; Engineering GA BG3XQ UT WOS:000388373401075 ER PT S AU Song, H Thiagarajan, JJ Ramamurthy, KN Spanias, A Turaga, P AF Song, Huan Thiagarajan, Jayaraman J. Ramamurthy, Karthikeyan Natesan Spanias, Andreas Turaga, Pavan GP IEEE TI CONSENSUS INFERENCE ON MOBILE PHONE SENSORS FOR ACTIVITY RECOGNITION SO 2016 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING PROCEEDINGS SE International Conference on Acoustics Speech and Signal Processing ICASSP LA English DT Proceedings Paper CT IEEE International Conference on Acoustics, Speech, and Signal Processing CY MAR 20-25, 2016 CL Shanghai, PEOPLES R CHINA SP Inst Elect & Elect Engineers, Inst Elect & Elect Engineers Signal Proc Soc DE Activity recognition; Sensor fusion; Multi-layer graph; Time-delay embedding; Reference-based classification AB The pervasive use of wearable sensors in activity and health monitoring presents a huge potential for building novel data analysis and prediction frameworks. In particular, approaches that can harness data from a diverse set of low-cost sensors for recognition are needed. Many of the existing approaches rely heavily on elaborate feature engineering to build robust recognition systems, and their performance is often limited by the inaccuracies in the data. In this paper, we develop a novel two-stage recognition system that enables a systematic fusion of complementary information from multiple sensors in a linear graph embedding setting, while employing an ensemble classifier phase that leverages the discriminative power of different feature extraction strategies. Experimental results on a challenging dataset show that our framework greatly improves the recognition performance when compared to using any single sensor. C1 [Song, Huan; Spanias, Andreas; Turaga, Pavan] Arizona State Univ, ECEE, SenSIP Ctr, Tempe, AZ 85281 USA. [Thiagarajan, Jayaraman J.] Lawrence Livermore Natl Lab, 7000 East Ave, Livermore, CA USA. [Ramamurthy, Karthikeyan Natesan] IBM TJ Watson Res Ctr, 1101 Kitchawan Rd, Yorktown Hts, NY USA. RP Song, H (reprint author), Arizona State Univ, ECEE, SenSIP Ctr, Tempe, AZ 85281 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 1520-6149 BN 978-1-4799-9988-0 J9 INT CONF ACOUST SPEE PY 2016 BP 2294 EP 2298 PG 5 WC Acoustics; Engineering, Electrical & Electronic SC Acoustics; Engineering GA BG3XQ UT WOS:000388373402087 ER PT S AU Kailkhura, B Thiagarajan, AJ Bremer, PT Varshney, PK AF Kailkhura, Bhavya Thiagarajan, Araman J. Bremer, Peer-Timo Varshney, Pramod K. GP IEEE TI THEORETICAL GUARANTEES FOR POISSON DISK SAMPLING USING PAIR CORRELATION FUNCTION SO 2016 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING PROCEEDINGS SE International Conference on Acoustics Speech and Signal Processing ICASSP LA English DT Proceedings Paper CT IEEE International Conference on Acoustics, Speech, and Signal Processing CY MAR 20-25, 2016 CL Shanghai, PEOPLES R CHINA SP Inst Elect & Elect Engineers, Inst Elect & Elect Engineers Signal Proc Soc DE Poisson-disk sampling; dart throwing; multidimensional sampling; maximal sampling ID ALGORITHM AB In this paper, we study the problem of generating uniform random point samples on a domain of d-dimensional space based on a minimum distance criterion between point samples (Poisson-disk sampling or PDS). First, we formally define PDS via the pair correlation function (PCF) to quantitatively evaluate properties of the sampling process. Surprisingly, none of the existing PDS techniques satisfy both uniformity and minimum distance criterion, simultaneously. These approaches typically create an approximate PDS with high regularity, and inherently present high risk for sample aliasing. Our new formulation based on PCF introduces a new approach to evaluate PDS properties which leads to theoretical bounds on the size of a PDS in arbitrary dimensions as well as a faster algorithm to create better quality samplings than the current PDS approaches. C1 [Kailkhura, Bhavya; Varshney, Pramod K.] Syracuse Univ, Dept EECS, Syracuse, NY 13244 USA. [Thiagarajan, Araman J.; Bremer, Peer-Timo] Lawrence Livermore Natl Lab, Livermore, CA USA. RP Kailkhura, B (reprint author), Syracuse Univ, Dept EECS, Syracuse, NY 13244 USA. NR 26 TC 1 Z9 1 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 1520-6149 BN 978-1-4799-9988-0 J9 INT CONF ACOUST SPEE PY 2016 BP 2589 EP 2593 PG 5 WC Acoustics; Engineering, Electrical & Electronic SC Acoustics; Engineering GA BG3XQ UT WOS:000388373402146 ER PT S AU Chen, PY Choudhury, S Hero, AO AF Chen, Pin-Yu Choudhury, Sutanay Hero, Alfred O., III GP IEEE TI MULTI-CENTRALITY GRAPH SPECTRAL DECOMPOSITIONS AND THEIR APPLICATION TO CYBER INTRUSION DETECTION SO 2016 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING PROCEEDINGS SE International Conference on Acoustics Speech and Signal Processing ICASSP LA English DT Proceedings Paper CT IEEE International Conference on Acoustics, Speech, and Signal Processing CY MAR 20-25, 2016 CL Shanghai, PEOPLES R CHINA SP Inst Elect & Elect Engineers, Inst Elect & Elect Engineers Signal Proc Soc ID DICTIONARIES; BETWEENNESS; SET AB Many modern datasets can be represented as graphs and hence spectral decompositions such as graph principal component analysis (PCA) can be useful. Distinct from previous graph decomposition approaches based on subspace projection of a single topological feature, e.g., the Fiedler vector of centered graph adjacency matrix (graph Laplacian), we propose spectral decomposition approaches to graph PCA and graph dictionary learning that integrate multiple features, including graph walk statistics, centrality measures and graph distances to reference nodes. In this paper we propose a new PCA method for single graph analysis, called multi-centrality graph PCA (MC-GPCA), and a new dictionary learning method for ensembles of graphs, called multi-centrality graph dictionary learning (MC-GDL), both based on spectral decomposition of multi-centrality matrices. As an application to cyber intrusion detection, MC-GPCA can be an effective indicator of anomalous connectivity pattern and MC-GDL can provide discriminative basis for attack classification. C1 [Chen, Pin-Yu; Hero, Alfred O., III] Univ Michigan, Dept Elect Engn & Comp Sci, Ann Arbor, MI 48109 USA. [Choudhury, Sutanay] Pacific Northwest Natl Lab, Richland, WA 99352 USA. RP Chen, PY (reprint author), Univ Michigan, Dept Elect Engn & Comp Sci, Ann Arbor, MI 48109 USA. EM pinyu@umich.edu; Sutanay.Choudhury@pnnl.gov; hero@umich.edu NR 33 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 978-1-4799-9988-0 J9 INT CONF ACOUST SPEE PY 2016 BP 4553 EP 4557 PG 5 WC Acoustics; Engineering, Electrical & Electronic SC Acoustics; Engineering GA BG3XQ UT WOS:000388373404140 ER PT S AU Ramamurthy, KN Aravkin, AY Thiagarajan, JJ AF Ramamurthy, Karthikeyan Natesan Aravkin, Aleksandr Y. Thiagarajan, Jayaraman J. GP IEEE TI BEYOND L2-LOSS FUNCTIONS FOR LEARNING SPARSE MODELS SO 2016 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING PROCEEDINGS SE International Conference on Acoustics Speech and Signal Processing ICASSP LA English DT Proceedings Paper CT IEEE International Conference on Acoustics, Speech, and Signal Processing CY MAR 20-25, 2016 CL Shanghai, PEOPLES R CHINA SP Inst Elect & Elect Engineers, Inst Elect & Elect Engineers Signal Proc Soc DE PLQ; regularization; heterogeneous data; robust loss; tag refinement AB In sparse learning, the squared Euclidean distance is a popular choice for measuring the approximation quality. However, the use of other forms of parametrized loss functions, including asymmetric losses, has generated research interest. In this paper, we perform sparse learning using a broad class of smooth piecewise linear quadratic (PLQ) loss functions, including robust and asymmetric losses that are adaptable to many real-world scenarios. The proposed framework also supports heterogeneous data modeling by allowing different PLQ penalties for different blocks of residual vectors (split-PLQ). We demonstrate the impact of the proposed sparse learning in image recovery, and apply the proposed split-PLQ loss approach to tag refinement for image annotation and retrieval. C1 [Ramamurthy, Karthikeyan Natesan] IBM Thomas J Watson Res Ctr, Yorktown Hts, NY 10598 USA. [Aravkin, Aleksandr Y.] Univ Washington, Dept Appl Math, Seattle, WA 98195 USA. [Thiagarajan, Jayaraman J.] Lawrence Livermore Natl Lab, Livermore, CA USA. RP Ramamurthy, KN (reprint author), IBM Thomas J Watson Res Ctr, Yorktown Hts, NY 10598 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 1520-6149 BN 978-1-4799-9988-0 J9 INT CONF ACOUST SPEE PY 2016 BP 4692 EP 4696 PG 5 WC Acoustics; Engineering, Electrical & Electronic SC Acoustics; Engineering GA BG3XQ UT WOS:000388373404168 ER PT J AU Chen, C Lang, M Ionkov, L Chen, Y AF Chen, Chao Lang, Michael Ionkov, Latchesar Chen, Yong GP IEEE TI Active Burst-Buffer: In-Transit Processing Integrated into Hierarchical Storage SO 2016 IEEE INTERNATIONAL CONFERENCE ON NETWORKING ARCHITECTURE AND STORAGE (NAS) LA English DT Proceedings Paper CT 11th IEEE International Conference on Networking, Architecture and Storage (NAS) CY AUG 08-10, 2016 CL Long Beach, CA SP IEEE, IEEE Comp Soc, IEEE Tech Comm Comp Architecture, IEEE Tech Comm Parallel Proc, IEEE Tech Comm Distributed Proc AB The data volume of many scientific applications has substantially increased in the past decade and continues to increase due to the rising needs of high-resolution and fine-granularity scientific discovery. The data movement between storage and compute nodes has become a critical performance factor and has attracted intense research and development attention in recent years. In this paper, we propose a novel solution, named Active burst-buffer, to reduce the unnecessary data movement and to speed up scientific workflow. Active burst-buffer enhances the existing burst-buffer concept with analysis capabilities by reconstructing the cached data to a logic file and providing a MapReduce-like computing framework for programming and executing the analysis codes. An extensive set of experiments were conducted to evaluate the performance of Active burst-buffer by comparing it against existing mainstream schemes, and more than 30% improvements were observed. The evaluations confirm that Active burst-buffer is capable of enabling efficient data analysis in-transit on burst-buffer nodes and is a promising solution to scientific discoveries with large-scale data sets. C1 [Chen, Chao] Georgia Inst Technol, Atlanta, GA 30332 USA. [Lang, Michael; Ionkov, Latchesar] Los Alamos Natl Lab, Los Alamos, NM USA. [Chen, Yong] Texas Tech Univ, Lubbock, TX 79409 USA. RP Chen, C (reprint author), Georgia Inst Technol, Atlanta, GA 30332 USA. EM chao.chen@gatech.edu; mlang@lanl.gov; lionkov@lanl.gov; yong.chen@ttu.edu 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 BN 978-1-5090-3315-7 PY 2016 PG 10 WC Computer Science, Hardware & Architecture SC Computer Science GA BG5MQ UT WOS:000389550100004 ER PT J AU Chen, HH Fu, S AF Chen, Hsing-Hung Fu, Song GP IEEE TI Parallel Erasure Coding: Exploring Task Parallelism in Erasure Coding for Enhanced Bandwidth and Energy Efficiency SO 2016 IEEE INTERNATIONAL CONFERENCE ON NETWORKING ARCHITECTURE AND STORAGE (NAS) LA English DT Proceedings Paper CT 11th IEEE International Conference on Networking, Architecture and Storage (NAS) CY AUG 08-10, 2016 CL Long Beach, CA SP IEEE, IEEE Comp Soc, IEEE Tech Comm Comp Architecture, IEEE Tech Comm Parallel Proc, IEEE Tech Comm Distributed Proc DE Erasure coding; Parallel I/O; Task parallelism; Workload distribution; Storage system; Power consumption AB Very large data sets within the range of megabytes to terabytes generated daily from checkpoint-and-restart processes are seen in today's scientific simulations. Reliability and durability are two important factors to build an archive storage system. Erasure code based object storage systems are becoming popular choices for archive storage systems due to cost-effective storage space saving schemes and higher fault-resilience capabilities. Both erasure code encoding and decoding procedures involve heavy array, matrix, and table-lookup compute intensive operations. Current solutions of the erasure coding process are based on single process approach which is not capable of processing very large data sets efficient and effectively. In this paper, we address the bottleneck problem of single process erasure encoding by leveraging task parallelism offered by multi-core computers. We add parallel processing capability to the erasure coding process. More specifically, we develop a parallel erasure coding software, called parEC. It explores the MPI run time parallel I/O environment and integrates data placement process for distributing encoded data blocks to destination storage devices. We evaluate the performance of parEC in terms of both encoding throughput and energy efficiency. We also compare the performance of two task scheduling algorithms for parEC. Our experimental results show parEC can significantly reduce the encoding time (i.e., by 74.06%-96.86%) and energy consumption (i.e., by 73.57%-96.86%), and Demand-based Workload Assignment (DBWA) algorithm can a high system utilization (i.e., 95.23%). C1 [Chen, Hsing-Hung] Los Alamos Natl Lab, High Performance Comp Design Grp, Los Alamos, NM 87545 USA. [Fu, Song] Univ North Texas, Dept Comp Sci & Engn, Denton, TX 76203 USA. RP Chen, HH (reprint author), Los Alamos Natl Lab, High Performance Comp Design Grp, Los Alamos, NM 87545 USA. EM hbchen@lanl.gov; song.fu@unt.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 978-1-5090-3315-7 PY 2016 PG 4 WC Computer Science, Hardware & Architecture SC Computer Science GA BG5MQ UT WOS:000389550100026 ER PT J AU Tallent, NR Barker, KJ Chavarria-Miranda, D Tumeo, A Halappanavar, M Marquez, A Kerbyson, DJ Hoisie, A AF Tallent, Nathan R. Barker, Kevin J. Chavarria-Miranda, Daniel Tumeo, Antonin Halappanavar, Mahantesh Marquez, Andres Kerbyson, Darren J. Hoisie, Adolfy GP IEEE TI Modeling the Impact of Silicon Photonics on Graph Analytics SO 2016 IEEE INTERNATIONAL CONFERENCE ON NETWORKING ARCHITECTURE AND STORAGE (NAS) LA English DT Proceedings Paper CT 11th IEEE International Conference on Networking, Architecture and Storage (NAS) CY AUG 08-10, 2016 CL Long Beach, CA SP IEEE, IEEE Comp Soc, IEEE Tech Comm Comp Architecture, IEEE Tech Comm Parallel Proc, IEEE Tech Comm Distributed Proc ID ARCHITECTURES; SYSTEMS; NETWORK AB Silicon photonics is an emerging technology that delivers higher ratios of bandwidth to power than today's electrical interconnects. This paper explores whether graph-based analytics, increasingly important for high performance computing, can benefit from photonics' energy-efficient bandwidth. We select two contrasting photonically-enhanced systems projected for 2020. We sketch optical and electrical interconnect variants at different points along similar performance-to-power curves. We model applications and graphs that exhibit four distinct workload characteristics: compute-bound, bandwidth-bound all-to-alls, bandwidth-bound neighbor exchange, and latency-bound. We present quantitative results that project execution time and energy on large graphs (1 trillion edges). Our results show that for these workloads, interconnects with efficient optical interconnects can be over-provisioned if their bandwidth is too high. However, interconnects with similar efficiency but lower power present an opportunity for energy savings. We also show that even though optical interconnects do not improve on electrical link latencies, they can substantially increase the performance of latency-bound applications. C1 [Tallent, Nathan R.; Barker, Kevin J.; Chavarria-Miranda, Daniel; Tumeo, Antonin; Halappanavar, Mahantesh; Marquez, Andres; Kerbyson, Darren J.; Hoisie, Adolfy] Pacific Northwest Natl Lab, Richland, WA 99352 USA. RP Tallent, NR (reprint author), Pacific Northwest Natl Lab, Richland, WA 99352 USA. EM tallent@pnnl.gov; kevin.barker@pnnl.gov; daniel.chavarria@pnnl.gov; antonino.tumeo@pnnl.gov; hala@pnnl.gov; andres.marquez@pnnl.gov; darren.kerbyson@pnnl.gov; adolfy.hoisie@pnnl.gov 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 BN 978-1-5090-3315-7 PY 2016 PG 11 WC Computer Science, Hardware & Architecture SC Computer Science GA BG5MQ UT WOS:000389550100024 ER PT J AU Tallent, NR Barker, KJ Gioiosa, R Marquez, A Kestor, G Song, L Tumeo, A Kerbyson, DJ Hoisie, A AF Tallent, Nathan R. Barker, Kevin J. Gioiosa, Roberto Marquez, Andres Kestor, Gokcen Song, Leon Tumeo, Antonino Kerbyson, Darren J. Hoisie, Adolfy GP IEEE TI Assessing Advanced Technology in CENATE SO 2016 IEEE INTERNATIONAL CONFERENCE ON NETWORKING ARCHITECTURE AND STORAGE (NAS) LA English DT Proceedings Paper CT 11th IEEE International Conference on Networking, Architecture and Storage (NAS) CY AUG 08-10, 2016 CL Long Beach, CA SP IEEE, IEEE Comp Soc, IEEE Tech Comm Comp Architecture, IEEE Tech Comm Parallel Proc, IEEE Tech Comm Distributed Proc C1 [Tallent, Nathan R.; Barker, Kevin J.; Gioiosa, Roberto; Marquez, Andres; Kestor, Gokcen; Song, Leon; Tumeo, Antonino; Kerbyson, Darren J.; Hoisie, Adolfy] Pacific Northwest Natl Lab, Richland, WA 99352 USA. RP Tallent, NR (reprint author), Pacific Northwest Natl Lab, Richland, WA 99352 USA. EM nathanr.tallent@pnnl.gov; kevinj.barker@pnnl.gov; roberto.gioiosa@pnnl.gov; andres.marquez@pnnl.gov; gokcen.kestor@pnnl.gov; leon.song@pnnl.gov; antonino.tumeo@pnnl.gov; darrenj.kerbyson@pnnl.gov; adolfy.hoisie@pnnl.gov NR 4 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-5090-3315-7 PY 2016 PG 2 WC Computer Science, Hardware & Architecture SC Computer Science GA BG5MQ UT WOS:000389550100006 ER PT J AU Xie, W Chen, Y Roth, PC AF Xie, Wei Chen, Yong Roth, Philip C. GP IEEE TI Parallel-DFTL: A Flash Translation Layer that Exploits Internal Parallelism in Solid State Drives SO 2016 IEEE INTERNATIONAL CONFERENCE ON NETWORKING ARCHITECTURE AND STORAGE (NAS) LA English DT Proceedings Paper CT 11th IEEE International Conference on Networking, Architecture and Storage (NAS) CY AUG 08-10, 2016 CL Long Beach, CA SP IEEE, IEEE Comp Soc, IEEE Tech Comm Comp Architecture, IEEE Tech Comm Parallel Proc, IEEE Tech Comm Distributed Proc AB Solid State Drives (SSDs) using flash memory storage technology present a promising storage solution for dat-aintensive applications due to their low latency, high bandwidth, and low power consumption compared to traditional hard disk drives. SSDs achieve these desirable characteristics using internal parallelism-parallel access to multiple internal flash memory chips-and a Flash Translation Layer (FTL) that determines where data is stored on those chips so that they do not wear out prematurely. Unfortunately, current state-of-the-art cache-based FTLs like the Demand-based Flash Translation Layer (DFTL) do not allow IO schedulers to take full advantage of internal parallelism because they impose a tight coupling between the logical-to-physical address translation and the data access. In this work, we propose an innovative IO scheduling policy called Parallel-DFTL that works with the DFTL to break the coupled address translation operations from data accesses. Parallel-DFTL schedules address translation and data access operations separately, allowing the SSD to use its flash access channel resources concurrently and fully for both types of operations. We present a performance model of FTL schemes that predicts the benefit of Parallel-DFTL against DFTL. We implemented our approach in an SSD simulator using real SSD device parameters, and used trace-driven simulation to evaluate its efficacy. Parallel-DFTL improved overall performance by up to 32% for the real IO workloads we tested, and up to two orders of magnitude for our synthetic test workloads. It is also found that Parallel-DFTL is able to achieve reasonable performance with a very small cache size. C1 [Xie, Wei; Chen, Yong] Texas Tech Univ, Dept Comp Sci, Lubbock, TX 79413 USA. [Roth, Philip C.] Oak Ridge Natl Lab, Comp Sci & Math Div, Oak Ridge, TN 37831 USA. RP Xie, W (reprint author), Texas Tech Univ, Dept Comp Sci, Lubbock, TX 79413 USA. EM wci.xie@ttu.edu; yong.chen@ttu.edu; rothpc@ornl.gov NR 25 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-5090-3315-7 PY 2016 PG 10 WC Computer Science, Hardware & Architecture SC Computer Science GA BG5MQ UT WOS:000389550100027 ER PT J AU Bierma, M Doak, JE Hudson, C AF Bierma, Michael Doak (JD), Justin E. Hudson, Corey GP IEEE TI Learning to Rank for Alert Triage SO 2016 IEEE SYMPOSIUM ON TECHNOLOGIES FOR HOMELAND SECURITY (HST) LA English DT Proceedings Paper CT IEEE Symposium on Technologies for Homeland Security (HST) CY MAY 10-11, 2016 CL Waltham, MA SP IEEE AB As cyber monitoring capabilities expand and data rates increase, cyber security analysts must filter through an increasing number of alerts in order to identify potential intrusions on the network. This process is often manual and time-consuming, which limits the number of alerts an analyst can process. This generation of a vast number of alerts without any kind of ranking or prioritization is often referred to as alert desensitization [1]. This is the phenomenon where competent analysts become so numbed by the barrage of false positives that they are unable to identify the true positives, leading to unfortunate breaches. Our goal is to alleviate alert desensitization by placing the most important alerts at the front of the queue. With less time and energy expended investigating false positives, critical alerts may not be overlooked allowing timely responses to potential breaches. This paper discusses the use of supervised machine learning to rank these cyber security alerts to ensure that an analyst's time and energy are focused on the most important alerts. C1 [Bierma, Michael; Doak (JD), Justin E.; Hudson, Corey] Sandia Natl Labs, Livermore, CA USA. RP Bierma, M (reprint author), Sandia Natl Labs, Livermore, CA USA. EM mbierma@sandia.gov; jedoak@sandia.gov; cmhudso@sandia.gov 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 978-1-5090-0770-7 PY 2016 PG 5 WC Computer Science, Information Systems; Computer Science, Interdisciplinary Applications; Computer Science, Theory & Methods SC Computer Science GA BG5NO UT WOS:000389584500032 ER PT J AU Jurrus, E Hodas, N Baker, N Marrinan, T Hoover, MD AF Jurrus, Elizabeth Hodas, Nathan Baker, Nathan Marrinan, Tim Hoover, Mark D. GP IEEE TI Adaptive Visual Sort and Summary of Micrographic Images of Nanoparticles for Forensic Analysis SO 2016 IEEE SYMPOSIUM ON TECHNOLOGIES FOR HOMELAND SECURITY (HST) LA English DT Proceedings Paper CT IEEE Symposium on Technologies for Homeland Security (HST) CY MAY 10-11, 2016 CL Waltham, MA SP IEEE ID CAPSTONE DEPLETED URANIUM; SUBSPACES AB Image classification of nanoparticles from scanning electron microscopes for nuclear forensic analysis is a long, time consuming process. Months of analyst time may initially be required to sift through images in order to categorize morpho-logical characteristics associated with nanoparticle identification. Subsequent assessment of newly acquired images against identified characteristics can be equally time consuming. We present INStINCt, our Intelligent Signature Canvas, as a framework for quickly organizing image data in a web-based canvas framework that partitions images based on features derived from convolutional neural networks. This work is demonstrated using particle images from an aerosol study conducted by Pacific Northwest National Laboratory under the auspices of the U.S. Army Public Health Command to determine depleted uranium aerosol doses and risks. C1 [Jurrus, Elizabeth; Hodas, Nathan; Baker, Nathan] Pacific Northwest Natl Lab, Richland, WA 99352 USA. [Marrinan, Tim] Colorado State Univ, Dept Math, Ft Collins, CO 80523 USA. [Hoover, Mark D.] Natl Inst Occupat Safety & Hlth, Resp Hlth Div, Morgantown, WV 26505 USA. RP Jurrus, E (reprint author), Pacific Northwest Natl Lab, Richland, WA 99352 USA. EM liz@prnl.gov 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 978-1-5090-0770-7 PY 2016 PG 6 WC Computer Science, Information Systems; Computer Science, Interdisciplinary Applications; Computer Science, Theory & Methods SC Computer Science GA BG5NO UT WOS:000389584500084 ER PT J AU Sathanur, AV Haglin, DJ AF Sathanur, Arun V. Haglin, David J. GP IEEE TI A Novel Centrality Measure for Network-wide Cyber Vulnerability Assessment SO 2016 IEEE SYMPOSIUM ON TECHNOLOGIES FOR HOMELAND SECURITY (HST) LA English DT Proceedings Paper CT IEEE Symposium on Technologies for Homeland Security (HST) CY MAY 10-11, 2016 CL Waltham, MA SP IEEE DE Cyber Security; Risk Assessment; Vulnerability; Centrality; Random Walk Restart; Linear Solver; Graph Analytics AB In this work we propose a novel formulation that models the attack and compromise on a cyber network as a combination of two parts - direct compromise of a host and the compromise occurring through the spread of the attack on the network from a compromised host. The model parameters for the nodes are a concise representation of the host profiles that can include the risky behaviors of the associated human users while the model parameters for the edges are based on the existence of vulnerabilities between each pair of connected hosts. The edge models relate to the summary representations of the corresponding attack-graphs. This results in a formulation based on Random Walk with Restart (RWR) and the resulting centrality metric can be solved for in an efficient manner through the use of sparse linear solvers. Thus the formulation goes beyond mere topological considerations in centrality computations by summarizing the host profiles and the attack graphs into the model parameters. The computational efficiency of the method also allows us to also quantify the uncertainty in the centrality measure through Monte Carlo analysis. C1 [Sathanur, Arun V.] Pacific Northwest Natl Lab, 902 Batelle Blvd Richland, Richland, WA 99352 USA. [Haglin, David J.] Pacif NW Natl Labs, Seattle, WA 98109 USA. RP Sathanur, AV (reprint author), Pacific Northwest Natl Lab, 902 Batelle Blvd Richland, Richland, WA 99352 USA. EM arun.sathanur@pnnl.gov; david.haglin@pnnl.gov NR 20 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-5090-0770-7 PY 2016 PG 5 WC Computer Science, Information Systems; Computer Science, Interdisciplinary Applications; Computer Science, Theory & Methods SC Computer Science GA BG5NO UT WOS:000389584500049 ER PT J AU Urias, VE Stout, WMS Lin, HW AF Urias, Vincent E. Stout, William M. S. Lin, Han W. GP IEEE TI Gathering Threat Intelligence through Computer Network Deception SO 2016 IEEE SYMPOSIUM ON TECHNOLOGIES FOR HOMELAND SECURITY (HST) LA English DT Proceedings Paper CT IEEE Symposium on Technologies for Homeland Security (HST) CY MAY 10-11, 2016 CL Waltham, MA SP IEEE DE network security; virtual networking; software-defined-networking; virtual machine introspection; advanced persistent threat; honeypots; honeynets; deception AB The threat landscape is changing significantly; complexity and rate of attacks is ever increasing, and the network defender does not have enough resources (people, technology, intelligence, context) to make informed decisions. The need for network defenders to develop and create proactive threat intelligence is on the rise. Network deception may provide analysts the ability to collect raw intelligence about threat actors as they reveal their Tools, Tactics and Procedures (TTP). This increased understanding of the latest cyber-attacks would enable cyber defenders to better support and defend the network, thereby increasing the cost to the adversary by making it more difficult to successfully attack an enterprise. Using a deception framework, we have created a live, unpredictable, and adaptable Deception Environment leveraging virtualization/cloud technology, software defined networking, introspection and analytics. The environment not only provides the means to identify and contain the threat, but also facilitates the ability to study, understand, and develop protections against sophisticated adversaries. By leveraging actionable data, in real-time or after a sustained engagement, the Deception Environment may be easily modified to interact with and change the perception of the adversary on-the-fly. This ability to change what and where the attacker is on the network, as well as change and modify the content of the adversary on exfiltration and infiltration, is the defining novelty of our Deception Environment. C1 [Urias, Vincent E.; Stout, William M. S.; Lin, Han W.] Sandia Natl Labs, Albuquerque, NM USA. RP Urias, VE (reprint author), Sandia Natl Labs, Albuquerque, NM USA. EM veuria@sandia.gov; wmstout@sandia.gov; hwlin@sandia.gov 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 978-1-5090-0770-7 PY 2016 PG 6 WC Computer Science, Information Systems; Computer Science, Interdisciplinary Applications; Computer Science, Theory & Methods SC Computer Science GA BG5NO UT WOS:000389584500041 ER PT S AU Bardella, P Chow, WW Montrosset, I AF Bardella, P. Chow, W. W. Montrosset, I. BE Piprek, J Poulton, C Steel, M DeSterke, M TI Dynamic simulations of Integrated Couped Cavity Lasers SO 2016 INTERNATIONAL CONFERENCE ON NUMERICAL SIMULATION OF OPTOELECTRONIC DEVICES (NUSOD) SE International Conference on Numerical Simulation of Optoelectronic Devices LA English DT Proceedings Paper CT 16th International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD) CY JUL 11-15, 2016 CL AUSTRALIA SP Nusod Inst, Univ Sydney, IEEE Photon Soc DE component; semiconductor laser; modulation bandwidth; Photon-Photon Resonance; Coupled Cavities AB We propose a general procedure that we used for the design of semiconductor integrated coupled cavity lasers taking advantage of the Photon-Photon Resonance effect to increase their direct modulation bandwidth. The procedure, based on an analysis at threshold of the longitudinal complete cavity modes, is combined with dynamic simulations of the lasers small and large signal modulations. As an example, we report the study of the bandwidth extension in two mutually coupled cavity DBR lasers. C1 [Bardella, P.; Montrosset, I.] Politecnico Torino, Dipartimento Elettron Telecomunicazioni, Turin, Italy. [Chow, W. W.] Sandia Natl Labs, Albuquerque, NM 87185 USA. RP Bardella, P (reprint author), Politecnico Torino, Dipartimento Elettron Telecomunicazioni, Turin, Italy. EM paolo.bardella@polito.it 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 2158-3234 BN 978-1-4673-8603-6 J9 INT C NUMER SIMUL PY 2016 BP 11 EP 12 PG 2 WC Engineering, Electrical & Electronic; Mathematics, Applied; Optics SC Engineering; Mathematics; Optics GA BG5OJ UT WOS:000389597700006 ER PT S AU Jung, IW Li, ZL Gao, Y Walko, D Wang, J Shenoy, G Lopez, D AF Jung, Il Woong Li, Zhilong Gao, Ya Walko, Donald Wang, Jin Shenoy, Gopal Lopez, Daniel GP IEEE TI High Repetition-Rate X-Ray Pulse Selection at Synchrotron Sources SO 2016 INTERNATIONAL CONFERENCE ON OPTICAL MEMS AND NANOPHOTONICS (OMN) SE International Conference on Optical MEMS and Nanophotonics LA English DT Proceedings Paper CT International Conference on Optical MEMS and Nanophotonics (OMN) CY JUL 31-AUG 04, 2016 CL SINGAPORE SP IEEE, IEEE Photon Soc, Global Foundries, Nanyang Technolog Univ, Natl Univ Singapore, Univ Tokyo, Instrument Technol Res Ctr, Keysight Technologies, Ctr Intelligent Sensors & MEMS, Opt Sci & Engn Ctr DE MEMS scanner; synchrotron; storage ring; x-rays; Bragg diffraction; chopper; gating AB Hard x-ray research taking advantage of both the coherence and timing properties of next generation low-emittance storage rings will thrive in exploring the spatial and temporal correlations at the nanometer and nanosecond scales. Current gating technology with fast detectors and mechanical choppers will not be able to handle the high repetition-rates of these sources and requires the development of a fast gating device that can fill the needs of the timing community. Here, we introduce a MEMS device that has the potential to meet the future requirements of x-ray timing science. We demonstrate a device that is frequency matched to the operating sub-frequency of a high rep-rate bunch mode at the APS (Advanced Photon Source) to select single pulses from the pulse train with separations of similar to 153 ns. C1 [Jung, Il Woong; Lopez, Daniel] Argonne Natl Lab, Ctr Nanoscale Mat, Lemont, IL 60439 USA. [Li, Zhilong; Gao, Ya; Walko, Donald; Wang, Jin; Shenoy, Gopal] Argonne Natl Lab, Adv Photon Source, Lemont, IL USA. RP Jung, IW (reprint author), Argonne Natl Lab, Ctr Nanoscale Mat, Lemont, IL 60439 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 2160-5033 BN 978-1-5090-1035-6 J9 INT CONF OPTIC MEMS PY 2016 PG 2 WC Engineering, Electrical & Electronic; Nanoscience & Nanotechnology SC Engineering; Science & Technology - Other Topics GA BG5NS UT WOS:000389586300106 ER PT S AU Xu, LY Curwen, C Reno, J Itoh, T Williams, BS AF Xu, Luyao Curwen, Christopher Reno, John Itoh, Tatsuo Williams, Benjamin S. GP IEEE TI Terahertz Metasurface Quantum Cascade Lasers SO 2016 INTERNATIONAL CONFERENCE ON OPTICAL MEMS AND NANOPHOTONICS (OMN) SE International Conference on Optical MEMS and Nanophotonics LA English DT Proceedings Paper CT International Conference on Optical MEMS and Nanophotonics (OMN) CY JUL 31-AUG 04, 2016 CL SINGAPORE SP IEEE, IEEE Photon Soc, Global Foundries, Nanyang Technolog Univ, Natl Univ Singapore, Univ Tokyo, Instrument Technol Res Ctr, Keysight Technologies, Ctr Intelligent Sensors & MEMS, Opt Sci & Engn Ctr DE Terahertz; quantum-cascade lasers; metasurfaces; VECSEL; external cavity lasers AB We report THz quantum-cascade verticalexternal- cavity surface-emitting-Iasers (VECSELs) with up to 60 mW of power at 3.3 THz at 77 K. High quality, directive, near-diffraction limited, Gaussian beams are observed. C1 [Xu, Luyao; Curwen, Christopher; Itoh, Tatsuo; Williams, Benjamin S.] Univ Calif Los Angeles, Dept Elect Engn, Los Angeles, CA 90024 USA. [Xu, Luyao; Curwen, Christopher; Williams, Benjamin S.] Univ Calif Los Angeles, Calif NanoSyst Inst CNSI, Los Angeles, CA 90095 USA. [Reno, John] Sandia Natl Labs, Ctr Integrated Nanotechnol, POB 5800, Albuquerque, NM 87185 USA. RP Williams, BS (reprint author), Univ Calif Los Angeles, Dept Elect Engn, Los Angeles, CA 90024 USA.; Williams, BS (reprint author), Univ Calif Los Angeles, Calif NanoSyst Inst CNSI, Los Angeles, CA 90095 USA. EM bswilliams@ucla.edu NR 3 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2160-5033 BN 978-1-5090-1035-6 J9 INT CONF OPTIC MEMS PY 2016 PG 2 WC Engineering, Electrical & Electronic; Nanoscience & Nanotechnology SC Engineering; Science & Technology - Other Topics GA BG5NS UT WOS:000389586300092 ER PT S AU Campione, S Basilio, LI Warne, LK Langston, WL Luk, TS Wendt, JR Liu, S Brener, I Sinclair, MB AF Campione, Salvatore Basilio, Lorena I. Warne, Larry K. Langston, William L. Luk, Ting S. Wendt, Joel R. Liu, Sheng Brener, Igal Sinclair, Michael B. GP IEEE TI Tailoring Dielectric Resonator Geometries for Directional Scattering, Huygens' Metasurfaces, and High Quality-Factor Fano Resonances SO 2016 URSI INTERNATIONAL SYMPOSIUM ON ELECTROMAGNETIC THEORY (EMTS) SE URSI International Symposium on Electromagnetic Theory LA English DT Proceedings Paper CT URSI International Symposium on Electromagnetic Theory (EMTS) CY AUG 14-18, 2016 CL Espoo, FINLAND SP URSI ID NANOPARTICLES AB Metamaterial dielectric resonators represent a promising path toward low-loss metamaterials at optical frequencies. In this paper we utilize perturbations of high symmetry resonator geometries, such as cubes, either to overlap the electric and magnetic dipole resonances, thereby enabling directional scattering and Huygens' metasurfaces, or to induce couplings between the otherwise orthogonal resonator modes to achieve high-quality factor Fano resonances. Our results are fully scalable across any frequency bands where high-permittivity dielectric materials are available, including microwave, THz, and infrared frequencies. C1 [Campione, Salvatore; Basilio, Lorena I.; Warne, Larry K.; Langston, William L.; Luk, Ting S.; Wendt, Joel R.; Liu, Sheng; Brener, Igal; Sinclair, Michael B.] Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. [Luk, Ting S.; Liu, Sheng; Brener, Igal] Ctr Integrated Nanotechnol, Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. RP Campione, S (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. EM sncampi@sandia.gov 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 SN 2163-405X BN 978-1-5090-2502-2 J9 URSI INT SYM ELECT PY 2016 BP 662 EP 665 PG 4 WC Engineering, Electrical & Electronic SC Engineering GA BG5UN UT WOS:000389770800191 ER PT S AU Campione, S Basilio, LI Warne, LK Langston, WL AF Campione, Salvatore Basilio, Lorena I. Warne, Larry K. Langston, William L. GP IEEE TI Transmission-Line Modeling of Shielding Effectiveness of Multiple Shielded Cables with Arbitrary Terminations SO 2016 URSI INTERNATIONAL SYMPOSIUM ON ELECTROMAGNETIC THEORY (EMTS) SE URSI International Symposium on Electromagnetic Theory LA English DT Proceedings Paper CT URSI International Symposium on Electromagnetic Theory (EMTS) CY AUG 14-18, 2016 CL Espoo, FINLAND SP URSI AB Cable shielding to protect against coupling of electromagnetic radiation into a component or circuit, particularly over large frequency bands, is at times a challenging task. It is general understanding that increasing the number of shields of a cable will improve the shielding performance. However, there are situations in which a cable with multiple shields may perform similar to or in some cases worse than a cable with a single shield, and this analysis has seldom been discussed in the literature. We intend to shed more light onto this topic in this paper. C1 [Campione, Salvatore; Basilio, Lorena I.; Warne, Larry K.; Langston, William L.] Sandia Natl Labs, Electromagnet Theory Dept, POB 5800, Albuquerque, NM 87185 USA. RP Campione, S (reprint author), Sandia Natl Labs, Electromagnet Theory Dept, POB 5800, Albuquerque, NM 87185 USA. EM sncampi@sandia.gov 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 2163-405X BN 978-1-5090-2502-2 J9 URSI INT SYM ELECT PY 2016 BP 777 EP 779 PG 3 WC Engineering, Electrical & Electronic SC Engineering GA BG5UN UT WOS:000389770800223 ER PT S AU Baalrud, SD Daligault, J AF Baalrud, Scott D. Daligault, Jerome BE Ketsdever, A Struchtrup, H TI Effective Potential Kinetic Theory for Strongly Coupled Plasmas SO 30TH INTERNATIONAL SYMPOSIUM ON RAREFIED GAS DYNAMICS (RGD 30) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 30th International Symposium on Rarefied Gas Dynamics (RGD) CY JUL 10-15, 2016 CL Univ Victoria, Victoria, CANADA HO Univ Victoria ID CROSS-SECTIONS AB The effective potential theory (EPT) is a recently proposed method for extending traditional plasma kinetic and transport theory into the strongly coupled regime. Validation from experiments and molecular dynamics simulations have shown it to be accurate up to the onset of liquid-like correlation parameters (corresponding to Gamma similar or equal to 10 - 50 for the one-component plasma, depending on the process of interest). Here, this theory is briefly reviewed along with comparisons between the theory and molecular dynamics simulations for self-diffusivity and viscosity of the one-component plasma. A number of new results are also provided, including calculations of friction coefficients, energy exchange rates, stopping power, and mobility. The theory is also cast in the Landau and Fokker-Planck kinetic forms, which may prove useful for enabling efficient kinetic computations. C1 [Baalrud, Scott D.] Univ Iowa, Dept Phys & Astron, Iowa City, IA 52242 USA. [Daligault, Jerome] Los Alamos Natl Lab, Theoret Div, Los Alamos, NM 87545 USA. RP Baalrud, SD (reprint author), Univ Iowa, Dept Phys & Astron, Iowa City, IA 52242 USA. NR 29 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 978-0-7354-1448-8 J9 AIP CONF PROC PY 2016 VL 1786 AR UNSP 130001 DI 10.1063/1.4967627 PG 11 WC Physics, Applied SC Physics GA BG5JS UT WOS:000389513200091 ER PT S AU Gallis, MA Koehler, TP Torczynski, JR Plimpton, SJ AF Gallis, M. A. Koehler, T. P. Torczynski, J. R. Plimpton, S. J. BE Ketsdever, A Struchtrup, H TI Direct Simulation Monte Carlo Investigation of Hydrodynamic Instabilities in Gases SO 30TH INTERNATIONAL SYMPOSIUM ON RAREFIED GAS DYNAMICS (RGD 30) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 30th International Symposium on Rarefied Gas Dynamics (RGD) CY JUL 10-15, 2016 CL Univ Victoria, Victoria, CANADA HO Univ Victoria ID RAYLEIGH-TAYLOR INSTABILITY AB The Rayleigh-Taylor instability (RTI) is investigated using the Direct Simulation Monte Carlo (DSMC) method of molecular gas dynamics. Here, two-dimensional and three-dimensional DSMC RTI simulations are performed to quantify the growth of flat and single-mode-perturbed interfaces between two atmospheric-pressure monatomic gases. The DSMC simulations reproduce all qualitative features of the RTI and are in reasonable quantitative agreement with existing theoretical and empirical models in the linear, nonlinear, and self-similar regimes. At late times, the instability is seen to exhibit a self-similar behavior, in agreement with experimental observations. For the conditions simulated, diffusion can influence the initial instability growth significantly. C1 [Gallis, M. A.; Koehler, T. P.; Torczynski, J. R.] Sandia Natl Labs, Engn Sci Ctr, POB 5800, Albuquerque, NM 87185 USA. [Plimpton, S. J.] Sandia Natl Labs, Ctr Res Comp, POB 5800, Albuquerque, NM 87185 USA. RP Gallis, MA (reprint author), Sandia Natl Labs, Engn Sci Ctr, POB 5800, Albuquerque, NM 87185 USA. EM magalli@sandia.gov; tkoehle@sandia.gov; jrtorcz@sandia.gov; sjplimp@sandia.gov NR 25 TC 0 Z9 0 U1 2 U2 2 PU AMER INST PHYSICS PI MELVILLE PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA SN 0094-243X BN 978-0-7354-1448-8 J9 AIP CONF PROC PY 2016 VL 1786 AR UNSP 050002 DI 10.1063/1.4967552 PG 8 WC Physics, Applied SC Physics GA BG5JS UT WOS:000389513200016 ER PT S AU Klothakis, AG Nikolos, IK Koehler, TP Gallis, MA Plimpton, SJ AF Klothakis, A. G. Nikolos, I. K. Koehler, T. P. Gallis, M. A. Plimpton, S. J. BE Ketsdever, A Struchtrup, H TI Validation Simulations of the DSMC Code SPARTA SO 30TH INTERNATIONAL SYMPOSIUM ON RAREFIED GAS DYNAMICS (RGD 30) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 30th International Symposium on Rarefied Gas Dynamics (RGD) CY JUL 10-15, 2016 CL Univ Victoria, Victoria, CANADA HO Univ Victoria ID 70-DEGREE BLUNTED CONE; MONTE-CARLO METHOD; HYPERSONIC CONDITIONS; IMPLEMENTATION; FLOWS AB The Direct Simulation Monte Carlo (DSMC) method has been used for over 50 years to simulate rarified gas flows for a wide range of applications where continuum assumptions fail. Extensive efforts to validate and verify the DSMC method are essential to establishing confidence in the technique and to promoting its broader application. Here, validation results for two cases are presented using a recently developed, open-source DSMC code called SPARTA. C1 [Klothakis, A. G.; Nikolos, I. K.] Tech Univ Crete, Khania, Greece. [Koehler, T. P.; Gallis, M. A.; Plimpton, S. J.] Sandia Natl Labs, Albuquerque, NM 88220 USA. RP Klothakis, AG (reprint author), Tech Univ Crete, Khania, Greece. EM anklothakis@isc.tuc.gr; jnikolo@dpem.tuc.gr; tkoehle@sandia.gov; magalli@sandia.gov; sjplimp@sandia.gov NR 16 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 978-0-7354-1448-8 J9 AIP CONF PROC PY 2016 VL 1786 AR UNSP 050016 DI 10.1063/1.4967566 PG 8 WC Physics, Applied SC Physics GA BG5JS UT WOS:000389513200030 ER PT S AU Albert, F Byrd, J AF Albert, Felicie Byrd, John BE Hogan, MJ TI Summary report of Working Group 5: Beam and radiation generation, monitoring and control SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO DE Radiation by moving charges; X- and gamma-ray sources; Beam sources and diagnostics AB This paper summarizes the presentations and discussions of Working Group 5: Beam and radiation generation, monitoring and control. This working group was part of the 2014 Advanced Accelerator Concepts Workshop held in San Jose, CA. There was a very broad range of topics and discussions covered by this working group, which we cover as follows: light sources and diagnostics, Compton scattering sources, Betatron radiation, and electron sources, diagnostics, accelerators. C1 [Albert, Felicie] Lawrence Livermore Natl Lab, NIF & Photon Sci, 7000 East Ave, Livermore, CA 94550 USA. [Byrd, John] Lawrence Berkeley Natl Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA. RP Albert, F (reprint author), Lawrence Livermore Natl Lab, NIF & Photon Sci, 7000 East Ave, Livermore, CA 94550 USA. RI Albert, Felicie/G-2645-2013 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 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 030005 DI 10.1063/1.4965599 PG 8 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300010 ER PT S AU Antipov, SA Nagaitsev, S Valishev, A AF Antipov, S. A. Nagaitsev, S. Valishev, A. BE Hogan, MJ TI Quasi-Integrable Nonlinear Optics Experiment at IOTA SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO AB At Integrable Optics Test Accelerator it is possible to create a nonlinear focusing optics with one invariant of motion using just conventional magnets. 6D simulations show that this will allow to achieve a tune spread of 0.05 without significant reduction of dynamic aperture. C1 [Antipov, S. A.] Univ Chicago, 5720 S Ellis Ave, Chicago, IL 60637 USA. [Nagaitsev, S.; Valishev, A.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. RP Antipov, SA (reprint author), Univ Chicago, 5720 S Ellis Ave, Chicago, IL 60637 USA. EM antipov@uchicago.edu NR 5 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 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 100001 DI 10.1063/1.4965682 PG 4 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300093 ER PT S AU Antipov, S Baryshev, S Jing, CG Kanareykin, A Fedurin, M Swinson, C Zholents, A Gai, W AF Antipov, Sergey Baryshev, Sergey Jing, Chunguang Kanareykin, Alexei Fedurin, Mikhail Swinson, Christina Zholents, Alexander Gai, Wei BE Hogan, MJ TI Transformer Ratio Enhancement with Triangular Beam SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO DE advanced accelerator concepts; wakefield acceleration; transformer ratio AB Transformer ratio, which is defined as the ratio of the maximum energy gain of the witness bunch to the maximum energy loss of the drive bunch, is an important concept in collinear wakefield acceleration (structure or plasma based). For gaussian drive beam transformer ratio equals to 2. For a given drive beam energy, higher transformer ratio acceleration means higher energy gain by the witness beam. A number of methods were proposed to increase transformer ratio by shaping the drive beam. At the Accelerator Test Facility we studied experimentally triangle drive beam and observed transformer ratio enhancement. C1 [Antipov, Sergey; Baryshev, Sergey; Jing, Chunguang; Kanareykin, Alexei] Euclid Techlabs LLC, Solon, OH 44139 USA. [Fedurin, Mikhail; Swinson, Christina] Brookhaven Natl Lab, Upton, NY 11973 USA. [Zholents, Alexander; Gai, Wei] Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA. RP Antipov, S (reprint author), Euclid Techlabs LLC, Solon, OH 44139 USA. NR 12 TC 0 Z9 0 U1 1 U2 1 PU AMER INST PHYSICS PI MELVILLE PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA SN 0094-243X BN 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 070005 DI 10.1063/1.4965648 PG 3 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300059 ER PT S AU Antipov, S Baryshev, S Jing, CG Schoessow, P Kanareykin, A Fedurin, M Swinson, C Wang, D Zholents, A Gai, W AF Antipov, Sergey Baryshev, Sergey Jing, Chunguang Schoessow, Paul Kanareykin, Alexei Fedurin, Mikhail Swinson, Christina Wang, Dan Zholents, Alexander Gai, Wei BE Hogan, MJ TI High Power Terahertz Radiation Source Based on Electron Beam Wakefields SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO DE advanced accelerator concepts; beam driven radiation sources AB We recently proposed a compact high peak power THz source based on a low energy (few MeV) electron. It consists of three stages: a beam energy modulation stage followed by chicane compression to produce a density modulated beam and power extraction in a third and final stage. The source is narrow bandwidth (similar to 1 %), high peak power (mJ /pulse). We recently demonstrated the first two stages [1, 2] and here we will present results from a first attempt to separately demonstrate operation of the third stage. The power extractor is chosen to be a multimode dielectric loaded wakefield structure. We rely on an electron bunch train to coherently drive a high order mode (9 or 10th order) in the THz range. C1 [Antipov, Sergey; Baryshev, Sergey; Jing, Chunguang; Schoessow, Paul; Kanareykin, Alexei] Euclid Techlabs LLC, Solon, OH 44139 USA. [Fedurin, Mikhail; Swinson, Christina] Brookhaven Natl Lab, Upton, NY 11973 USA. [Wang, Dan; Zholents, Alexander; Gai, Wei] Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA. RP Antipov, S (reprint author), Euclid Techlabs LLC, Solon, OH 44139 USA. NR 7 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 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 070003 DI 10.1063/1.4965646 PG 4 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300057 ER PT S AU Arefiev, AV Cochran, GE Schumacher, DW Robinson, APL Chen, GY AF Arefiev, Alexey V. Cochran, Ginevra E. Schumacher, Douglass W. Robinson, Alexander P. L. Chen, Guangye BE Hogan, MJ TI Criterion for Correctly Simulating Relativistic Electron Motion in a High-Intensity Laser Field SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO DE adaptive algorithm; particle-in-cell code; high-intensity laser; electron acceleration AB We formulate a time-step criterion for particle-in-cell simulations of electron acceleration in an under-dense plasma by a high intensity laser. The numerical accuracy deteriorates with the increase of laser intensity due to errors in dephasing near stopping points along the electron trajectory. Adaptive electron sub-cycling is shown to be an efficient remedy at high laser intensities. C1 [Arefiev, Alexey V.] Univ Texas Austin, Inst Fus Studies, Austin, TX 78712 USA. [Cochran, Ginevra E.; Schumacher, Douglass W.] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA. [Robinson, Alexander P. L.] STFC Rutherford Appleton Lab, Cent Laser Facil, Didcot OX11 0QX, Oxon, England. [Chen, Guangye] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Arefiev, AV (reprint author), Univ Texas Austin, Inst Fus Studies, Austin, TX 78712 USA. RI Arefiev, Alexey/A-8550-2016; OI Arefiev, Alexey/0000-0002-0597-0976; Chen, Guangye/0000-0002-8800-5791 NR 4 TC 0 Z9 0 U1 1 U2 1 PU AMER INST PHYSICS PI MELVILLE PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA SN 0094-243X BN 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 050001 DI 10.1063/1.4965624 PG 5 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300035 ER PT S AU Babzien, M Pogorelsky, IV Polanskiy, M AF Babzien, M. Pogorelsky, I. V. Polanskiy, M. BE Hogan, MJ TI Solid-state Seeding of a High Power Picosecond Carbon Dioxide Laser SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO AB A hybrid solid-state/gas laser has been commissioned at the Brookhaven Accelerator Test Facility. A Ti:sapphire MOPA system and multi-stage parametric generator for down-conversion to the mid-IR provide a seed pulse with proper spectral and temporal properties. The seed pulse is subsequently amplified to TW peak power in a CO2 amplifier chain. C1 [Babzien, M.; Pogorelsky, I. V.; Polanskiy, M.] Brookhaven Natl Lab, Upton, NY 11973 USA. RP Babzien, M (reprint author), Brookhaven Natl Lab, Upton, NY 11973 USA. EM babzien@bnl.gov 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 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 110001 DI 10.1063/1.4965690 PG 5 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300101 ER PT S AU Bane, K Fedurin, M Antipov, S AF Bane, Karl Fedurin, Mikhail Antipov, Sergey BE Hogan, MJ TI Measurements of Terahertz Generation in a Metallic, Corrugated Beam Pipe SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO DE advanced accelerator concepts; beam driven radiation sources AB In this paper we report on generation of a 450 GHz signal in a corrugated metallic structure by a short electron beam. The measurement was done at the Accelerator Test Facility of Brookhaven National Laboratory. In the experiment we generated a 50kW peak power signal with a 10-15% bandwidth. We also observed energy modulation in a long, energy-chirped beam passing through the structure. C1 [Bane, Karl] SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA. [Fedurin, Mikhail] Brookhaven Natl Lab, Upton, NY 11973 USA. [Antipov, Sergey] Euclid Techlabs LLC, Solon, OH 44139 USA. RP Bane, K (reprint author), SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA. NR 6 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 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 070004 DI 10.1063/1.4965647 PG 4 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300058 ER PT S AU Baryshev, SV Antipov, S Jing, C Quintero, KJP Sumant, AV AF Baryshev, S. V. Antipov, S. Jing, C. Quintero, K. J. Perez Sumant, A. V. BE Hogan, MJ TI Ultrananocrystalline Diamond Films as a High QE Photocathode SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO DE photocathode; ultrananocrystalline diamond; negative electron affinity; n-type doping ID SURFACE AB Quantum efficiency (QE) measurements of 150 nm nitrogen-incorporated ultrananocrystalline diamond films terminated with hydrogen, (N) UNCD: H, were carried out in the range between 250 and 440 nm. (N) UNCD: H demonstrated a QE as high as similar to 0.1 % at 254 nm. Additionally, (N) UNCD: H was sensitive in visible light (405 to 440 nm) with a QE of similar to 5x10(-6) % at 405 nm, which is comparable with QE range of polycrystalline copper photocathodes operated at 250-270 nm (with no MV/m gradients on the surface). Note, the (N) UNCD: H samples were transported ex situ in air. Achieved high QEs in near UV and visible ranges are thanks to introduction of electron states in the band gap close to the conduction band minimum via nitrogen incorporation and negative electron affinity introduced by hydrogen states on the (N) UNCD surface. C1 [Baryshev, S. V.; Antipov, S.; Jing, C.] Euclid Techlabs, Solon, OH 44139 USA. [Quintero, K. J. Perez; Sumant, A. V.] Argonne Natl Lab, Ctr Nanoscale Mat, 9700 S Cass Ave, Argonne, IL 60439 USA. [Quintero, K. J. Perez] Univ Puerto Rico, Dept Phys, Rio Piedras Campus, San Juan, PR 00931 USA. RP Baryshev, SV (reprint author), Euclid Techlabs, Solon, OH 44139 USA. NR 10 TC 0 Z9 0 U1 2 U2 2 PU AMER INST PHYSICS PI MELVILLE PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA SN 0094-243X BN 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 080001 DI 10.1063/1.4965658 PG 4 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300069 ER PT S AU Ben-Zvi, I Pogorelsky, IV AF Ben-Zvi, I. Pogorelsky, I. V. BE Hogan, MJ TI In Service of Accelerator Stewardship: The BNL ATF and its Upgrade SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO ID PLASMA; LASER; REGIME AB The Accelerator Test Facility (ATF) at Brookhaven National Laboratory has served as a user facility for accelerator science for over a quarter of a century. Since its inception, the ATF in fact had undertaken the mission of accelerator stewardship of the Office of High Energy Physics (OHEP), even before the concept was fully formulated. In bringing advanced accelerator-science and technology to individual users, small groups of researchers, and large collaborations, the ATF offers a unique combination of a high-brightness 80-MeV electron beam synchronized to a 2-TW picosecond CO2 laser. The ATF now the flagship of the Accelerator Stewardship program of the OHEP, and thus will provide opportunities to small businesses to develop accelerator-based products, running the full gamut from the laboratory to the applications. At this juncture, the ATF has embarked upon a transformational upgrade of its capabilities. We describe our plan for greatly expanding the ATF's floor space, and the number of independent experiment halls, for upgrading the electron beam's energy in stages to 500-MeV, and the CO2 laser's peak power to 100 TW. This upgrade will afford a new, vast space for the laser and electron beam for conducting new research in accelerator science and technology that is at the forefront advanced accelerators and radiation sources, and to support the most innovative ideas in these fields. We will discuss emerging opportunities for scientific breakthroughs that include the following: Plasma Wakefield Acceleration (PWFA), extending the researches already pursued at the ATF; Laser Wakefield Acceleration (LWFA) wherein the longer laser wavelengths will engender a proportional increase in the beam's charge, while our linac will assure, for the first-time, the opportunity for undertaking detailed studies of seeding and staging of the LWFA. The laser will extend proton acceleration to the 100-200 MeV level, as is demanded for certain medical applications. C1 [Ben-Zvi, I.; Pogorelsky, I. V.] BNL, Collider Accelerator Dept, Upton, NY 11973 USA. RP Pogorelsky, IV (reprint author), BNL, Collider Accelerator Dept, Upton, NY 11973 USA. EM igor@bnl.gov NR 32 TC 0 Z9 0 U1 0 U2 0 PU AMER INST PHYSICS PI MELVILLE PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA SN 0094-243X BN 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 020002 DI 10.1063/1.4965591 PG 9 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300002 ER PT S AU Benedetti, C Schroeder, CB Esarey, E Leemans, WP AF Benedetti, C. Schroeder, C. B. Esarey, E. Leemans, W. P. BE Hogan, MJ TI Plasma wakefield excitation by incoherent laser pulses: a path towards high-average power laser-plasma accelerators SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO DE laser-plasma accelerators; simulation ID ELECTRON-ACCELERATORS AB We study plasma wave excitation by an incoherent combination of a large number of low energy laser pulses (i.e., without constraining the pulse phases). We show that, in spite of the incoherent nature of electromagnetic fields within the volume occupied by the pulses, the excited wakefield behind the driver is regular and its amplitude is equal to that obtained using a single, coherent pulse with the same energy. Incoherent combination of multiple laser pulses may enable a technologically simpler path to high-repetition rate, high-average power laser-plasma accelerators, and associated applications. C1 [Benedetti, C.; Schroeder, C. B.; Esarey, E.; Leemans, W. P.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RP Benedetti, C (reprint author), Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. NR 20 TC 0 Z9 0 U1 1 U2 1 PU AMER INST PHYSICS PI MELVILLE PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA SN 0094-243X BN 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 040001 DI 10.1063/1.4965603 PG 5 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300014 ER PT S AU Berg, JS Witte, H AF Berg, J. Scott Witte, Holger BE Hogan, MJ TI Pulsed Synchrotrons for Very Rapid Acceleration SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO DE pulsed hybrid synchrotron; magnet; muon accelerator; dipole AB When rapid acceleration is important, synchrotrons with very short pulse times can be used to accelerate particle beams. We will describe rapidly pulsed synchrotrons and their distinction from ordinary synchrotrons. We will introduce a hybrid synchrotron which interleaves pulsed magnets with superconducting dipoles to allow rapid acceleration while still maintaining a high average bending field. We will describe particular characteristics of the lattice design for these machines. We will describe how to design magnets to limit power consumption while still maintaining high fields. We will discuss the impact of the choice and properties of magnetic materials on the magnet performance. We show a magnet design that limits losses in the core while giving a high field by using multiple materials: 6.5% silicon steel for the back yoke due to its low losses at high frequencies, and 3% silicon steel in the pole for its high saturation field. The magnet has a unique coil configuration that minimizes eddy current losses. We compute losses and field quality for this design. C1 [Berg, J. Scott; Witte, Holger] Brookhaven Natl Lab, POB 5000, Upton, NY 11973 USA. RP Berg, JS (reprint author), Brookhaven Natl Lab, POB 5000, Upton, NY 11973 USA. NR 13 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 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 100002 DI 10.1063/1.4965683 PG 5 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300094 ER PT S AU Bonatto, A Schroeder, CB Vay, JL Geddes, CR Benedetti, C Esarey, E Leemans, WP AF Bonatto, A. Schroeder, C. B. Vay, J. -L. Geddes, C. R. Benedetti, C. Esarey, E. Leemans, W. P. BE Hogan, MJ TI Compact disposal of high-energy electron beams using passive or laser-driven plasma decelerating stage SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO DE laser-plasma accelerators; beam dump; energy loss; beam deceleration ID ACCELERATOR AB A plasma decelerating stage is investigated as a compact alternative for the disposal of high-energy beams (beam dumps). This could benefit the design of laser-driven plasma accelerator (LPA) applications that require transportability and/or high-repetition-rate operation regimes. Passive and laser-driven (active) plasma-based beam dumps are studied analytically and with particle-in-cell (PIC) simulations in a 1D geometry. Analytical estimates for the beam energy loss are compared to and extended by the PIC simulations, showing that with the proposed schemes a beam can be efficiently decelerated in a centimeter-scale distance. C1 [Bonatto, A.; Schroeder, C. B.; Vay, J. -L.; Geddes, C. R.; Benedetti, C.; Esarey, E.; Leemans, W. P.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RP Bonatto, A (reprint author), Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. 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 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 040002 DI 10.1063/1.4965604 PG 5 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300015 ER PT S AU Bulanov, SS Schroeder, CB Esarey, E Leemans, WP AF Bulanov, S. S. Schroeder, C. B. Esarey, E. Leemans, W. P. BE Hogan, MJ TI Electromagnetic Cascade: High-Energy Electron Beam Collisions with Intense Laser Pulses SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO ID EXTREME FIELD LIMITS; PLASMA; POSITRON; ACCELERATOR; VACUUM; REGIME; DESIGN; LIGHT; DIRAC; WAVE AB The interaction of a high-energy electron beam with an intense laser pulse with subsequent production of photons, and electron positron pairs is studied. It is shown that charged particles in the strong electromagnetic field experience multiple emissions of photons, leading to the fast depletion of particle energy. The final distributions of electrons, positrons, and photons are calculated for the case of a high-energy electron beam interacting with a counterstreaming, short intense laser pulse. C1 [Bulanov, S. S.; Leemans, W. P.] Univ Calif Berkeley, Berkeley, CA 94720 USA. [Schroeder, C. B.; Esarey, E.; Leemans, W. P.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RP Bulanov, SS (reprint author), Univ Calif Berkeley, Berkeley, CA 94720 USA. EM sbulanov@lbl.gov NR 47 TC 0 Z9 0 U1 1 U2 1 PU AMER INST PHYSICS PI MELVILLE PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA SN 0094-243X BN 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 080002 DI 10.1063/1.4965659 PG 5 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300070 ER PT S AU Bulanov, SS Esarey, E Schroeder, CB Leemans, WP Bulanov, SV Margarone, D Korn, G Haberer, T AF Bulanov, S. S. Esarey, E. Schroeder, C. B. Leemans, W. P. Bulanov, S. V. Margarone, D. Korn, G. Haberer, T. BE Hogan, MJ TI Laser-driven Helium Ion Acceleration for Hadron Therapy SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO ID PLASMA; PULSES AB Laser acceleration of helium ions from near critical density targets is studied as an ion source for hadron therapy of oncological diseases. Helium ions are considered a promising candidate for therapy due to higher precision in dose deposition and possibly higher Relative Biological Effectiveness. The feasibility of using PW-class lasers to produce 250 MeV per nucleon helium ion beams that meet the hadron therapy requirements is discussed. The relative effectiveness of laser acceleration of He-3 and He-4 ions is studied. C1 [Bulanov, S. S.; Leemans, W. P.] Univ Calif Berkeley, Berkeley, CA 94720 USA. [Esarey, E.; Schroeder, C. B.; Leemans, W. P.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. [Bulanov, S. V.] JAEA, Kansai Photon Sci Inst, Kyoto 6190215, Japan. [Bulanov, S. V.] Russian Acad Sci, Prokhorov Inst Gen Phys, Moscow 119991, Russia. [Bulanov, S. V.] Moscow Inst Phys & Technol, Dolgoprudnyi 141700, Moscow Region, Russia. [Margarone, D.; Korn, G.] ELI Beamlines, Inst Phys ASCR, Prague 18221, Czech Republic. [Haberer, T.] Heidelberger Ionenstrahl Therapie Ctr HIT, D-69120 Heidelberg, Germany. RP Bulanov, SS (reprint author), Univ Calif Berkeley, Berkeley, CA 94720 USA. EM sbulanov@lbl.gov NR 31 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 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 090001 DI 10.1063/1.4965676 PG 5 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300087 ER PT S AU Cook, N Tresca, O Dover, NP Maharjan, C Polyanskiy, MN Najmudin, Z Shkolnikov, P Pogorelsky, I AF Cook, N. Tresca, O. Dover, N. P. Maharjan, C. Polyanskiy, M. N. Najmudin, Z. Shkolnikov, P. Pogorelsky, I. BE Hogan, MJ TI Hydrodynamic Shaping of Gas Jets for Laser Driven Shock Acceleration of Helium Ions SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO AB We report on the all-optical tailoring of a gas target via a two pulse laser sequence for use in laser driven shock acceleration. A single infrared pulse drove a blast wave into the target, creating a steepened density profile, while a second drive pulse followed to generate energetic ion beams. Simulations confirm the sensitivity of the target to variations in pre-pulse energy in determining the outcome of the laser interaction. For a narrow range of pre-pulse energies, the main pulse launches an electrostatic collisionless shock into the target, capable of forward ion reflection. C1 [Cook, N.; Maharjan, C.; Shkolnikov, P.] SUNY Stony Brook, Stony Brook, NY 11794 USA. [Tresca, O.; Polyanskiy, M. N.; Pogorelsky, I.] Brookhaven Natl Lab, Accelerator Test Facil, Upton, NY 11973 USA. [Dover, N. P.; Najmudin, Z.] Imperial Coll London, Blackett Lab, John Adams Inst Accelerator Sci, London SW7 2BZ, England. RP Cook, N (reprint author), SUNY Stony Brook, Stony Brook, NY 11794 USA. EM nathan.cook@stonybrook.edu NR 11 TC 0 Z9 0 U1 1 U2 1 PU AMER INST PHYSICS PI MELVILLE PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA SN 0094-243X BN 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 090002 DI 10.1063/1.4965677 PG 5 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300088 ER PT S AU Daniels, J van Tilborg, J Gonsalves, AJ Benedetti, C Schroeder, CB Esarey, E Leemans, WP AF Daniels, J. van Tilborg, J. Gonsalves, A. J. Benedetti, C. Schroeder, C. B. Esarey, E. Leemans, W. P. BE Hogan, MJ TI Plasma Channel Diagnostics for Capillary Discharges SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO AB The plasma properties of a plasma waveguide are critical to the performance of laser-plasma accelerators (LPAs). By measuring the group velocity in plasma channels through spectral interferometry, the density in the channel is retrieved. In this paper, experimental methods and results are presented for the plasma density in LPA-relevant plasma channels of various lengths. C1 [Daniels, J.] Eindhoven Univ Technol, POB 513, NL-5600 MB Eindhoven, Netherlands. [Daniels, J.; van Tilborg, J.; Gonsalves, A. J.; Benedetti, C.; Schroeder, C. B.; Esarey, E.; Leemans, W. P.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RP Daniels, J (reprint author), Eindhoven Univ Technol, POB 513, NL-5600 MB Eindhoven, Netherlands.; Daniels, J (reprint author), Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. NR 7 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 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 080004 DI 10.1063/1.4965661 PG 5 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300072 ER PT S AU Delahaye, JP Valishev, A AF Delahaye, J. P. Valishev, A. BE Hogan, MJ TI Advanced Accelerator Concept 2014 Summary of WG7 Muon Colliders and Advanced Concepts SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO AB The subject matter of this WG has evolved over the years. With Muon Collider, a very attractive option to extend lepton colliders in the multi-TeV energy range, WG7 addressed the major challenges facing the muon collider community, such as muon production, emittance reduction via cooling, high-gradient acceleration and explored novel alternative methods. Another focus area of WG7 was on advanced beam dynamics aspects in Intensity Frontier machines, with particular emphasis on the space charge effect, beam halo control and mitigation. Among other advanced concepts, new particle production, storage and acceleration techniques that lie outside the purview of the other WGs, were explored. C1 [Delahaye, J. P.] SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA. [Valishev, A.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. RP Delahaye, JP (reprint author), SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA. EM jpd@slac.stanford.edu; valishev@fnal.gov NR 9 TC 0 Z9 0 U1 1 U2 1 PU AMER INST PHYSICS PI MELVILLE PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA SN 0094-243X BN 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 030007 DI 10.1063/1.4965601 PG 9 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300012 ER PT S AU Duris, J Musumeci, P Babzien, M Custodio, S Fedurin, M Kusche, K Li, RK Moody, J Pogorelsky, I Polyanskiy, M Rosenzweig, JB Sakai, Y Sudar, N Swinson, C Threlkeld, E Williams, O Yakimenko, V AF Duris, J. Musumeci, P. Babzien, M. Custodio, S. Fedurin, M. Kusche, K. Li, R. K. Moody, J. Pogorelsky, I. Polyanskiy, M. Rosenzweig, J. B. Sakai, Y. Sudar, N. Swinson, C. Threlkeld, E. Williams, O. Yakimenko, V. BE Hogan, MJ TI Helical inverse free electron laser accelerator for efficient production of high quality electron beams SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO DE Inverse Free Electron Laser Acceleration; Inverse Compton Scattering; Prebuncher AB Recently the UCLA BNL helical IFEL experiment at the Accelerator Test Facility (ATF) showed for the first time capture and high gradient acceleration of monoenergetic electron beams from a helical inverse free electron laser. Using a modest intensity similar to 10<^>13 W/cm<^>2 laser-several orders of magnitude less than those used in laser wake-field accelerators-and a strongly tapered 0.5 m long helical undulator, we demonstrated energy doubling of a 52 MeV electron beam with >100 MV/m average accelerating gradient and excellent output beam quality. In order to improve the fraction of electrons captured, a prebuncher module is being prepared for testing next month. Simulations show that 70 to 90% of the beam should be accelerated to a final energy of 97 MeV with 2% energy spread. The high efficiency acceleration will enable the first IFEL driven inverse Compton scattering experiment. C1 [Duris, J.; Musumeci, P.; Custodio, S.; Moody, J.; Rosenzweig, J. B.; Sakai, Y.; Sudar, N.; Threlkeld, E.; Williams, O.] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA. [Babzien, M.; Fedurin, M.; Kusche, K.; Pogorelsky, I.; Polyanskiy, M.; Swinson, C.] Brookhaven Natl Lab, Accelerator Test Facil, Upton, NY 11973 USA. [Li, R. K.; Yakimenko, V.] SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA. RP Duris, J (reprint author), Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA. NR 12 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 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 060001 DI 10.1063/1.4965630 PG 5 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300041 ER PT S AU Esarey, E Wang, XM AF Esarey, Eric Wang, Xiaoming BE Hogan, MJ TI Summary Report of Working Group 1: Laser-Plasma Accelerators SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO DE laser plasma electron acceleration AB A brief summary of Working Group 1 on laser-plasma accelerators is presented. C1 [Esarey, Eric] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. [Wang, Xiaoming] Univ Texas Austin, Austin, TX 78712 USA. RP Esarey, E (reprint author), Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. EM ehesarey@lbl.gov 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 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 030001 DI 10.1063/1.4965595 PG 5 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300006 ER PT S AU Geddes, CGR Matlis, NH Steinke, S Esarey, E Nakamura, K Plateau, GR Schroeder, CB Toth, C Leemans, WP AF Geddes, C. G. R. Matlis, N. H. Steinke, S. Esarey, E. Nakamura, K. Plateau, G. R. Schroeder, C. B. Toth, Cs. Leemans, W. P. BE Hogan, MJ TI High Energy, Low Energy Spread Electron Bunches Produced via Colliding Pulse Injection SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO ID LASER-PULSES; ACCELERATOR AB Electron beams of high energy and narrow, controllable energy spread using significantly reduced laser power are demonstrated by combining control of Laser-Plasma Accelerator (LPA) structure and injection. A high-energy accelerating structure was formed by controlling the phase front of the drive laser in order to obtain collimated propagation over the length of the plasma. This produced electron energies nearly double those previously achieved using comparable lasers. Injection into the accelerator was controlled by using the beat between "colliding" laser pulses to kick electrons at a controlled location into a plasma wave that was operated below the threshold for self injection. This resulted in the production of bunches with controllable energy. Stability of charge, pointing, and energy were demonstrated. With the injection location fixed by the colliding pulses, beam energy up to 200 MeV was obtained using 10 TW drive laser pulses, controlled by plasma density and by target location with respect to the collision. Instrument-limited energy spreads below 1.4% FWHMtogether with a divergence of 1.5 mrad were measured at 150 MeV. Production of such high quality bunches using low-laser energies is an important step for transportable or laboratory scale LPAs to power photon sources. C1 [Geddes, C. G. R.; Matlis, N. H.; Steinke, S.; Esarey, E.; Nakamura, K.; Plateau, G. R.; Schroeder, C. B.; Toth, Cs.; Leemans, W. P.] Lawrence Berkeley Natl Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA. [Leemans, W. P.] Univ Calif Berkeley, Dept Phys, Berkeley, CA USA. RP Geddes, CGR (reprint author), Lawrence Berkeley Natl Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA. EM cgrgeddes@lbl.gov RI Steinke, Sven/D-8086-2011 OI Steinke, Sven/0000-0003-0507-698X NR 18 TC 0 Z9 0 U1 1 U2 1 PU AMER INST PHYSICS PI MELVILLE PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA SN 0094-243X BN 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 040003 DI 10.1063/1.4965605 PG 5 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300016 ER PT S AU Geddes, CGR Matlis, NH Steinke, S Esarey, E Mittelberger, DE Rykovanov, S Schroeder, CB Toth, C Vay, JL Leemans, WP AF Geddes, C. G. R. Matlis, N. H. Steinke, S. Esarey, E. Mittelberger, D. E. Rykovanov, S. Schroeder, C. B. Toth, Cs. Vay, J. -L Leemans, W. P. BE Hogan, MJ TI Laser Technology for Thomson MeV Photon Sources Based on Laser-Plasma Accelerators SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO ID INJECTION; PULSES AB Applications of nearly monoenergetic photon sources at MeV energies, produced by Thomson scattering of laser light from relativistic electron beams, are presently restricted to fixed facilities. Compact sources are important, but require laser development to power three enabling components: laser-plasma accelerator (LPA), scattering laser, and active electron beam dump. Recent experiments establishing a baseline for the accelerator have shown that tuning the spot quality over the full focal depth of the laser greatly improves LPA performance compared to optimizing the spot at the focal plane only. This enables Joule-class, 40 femtosecond pulsed lasers to drive the accelerator at the 0.2-0.5 GeV energy class, in agreement with the predictions of simulations. Designs for Thomson scattering sources utilizing the unique properties of LPAs also permit use of Joule-class scattering lasers, with ps pulse length. The size of the beam dump required for the high energy electrons can further be mitigated by deaccelerating the electrons in the plasma structure (with similar laser requirements to the accelerator). Joule class laser development at kHz repetition rates and with 0.04 to 10 ps pulse lengths would thus enable important new applications in nuclear nonproliferation, physics, and contraband detection. These requirements are a stepping stone to future systems relevant to high energy physics colliders. C1 [Geddes, C. G. R.; Matlis, N. H.; Steinke, S.; Esarey, E.; Mittelberger, D. E.; Rykovanov, S.; Schroeder, C. B.; Toth, Cs.; Vay, J. -L; Leemans, W. P.] Lawrence Berkeley Natl Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA. [Mittelberger, D. E.; Leemans, W. P.] Univ Calif Berkeley, Dept Phys, Berkeley, CA USA. [Rykovanov, S.] Helmholtz Inst Jena, Frobelstieg 3, D-07743 Jena, Germany. RP Geddes, CGR (reprint author), Lawrence Berkeley Natl Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA. EM cgrgeddes@lbl.gov RI Steinke, Sven/D-8086-2011 OI Steinke, Sven/0000-0003-0507-698X NR 17 TC 0 Z9 0 U1 1 U2 1 PU AMER INST PHYSICS PI MELVILLE PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA SN 0094-243X BN 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 110002 DI 10.1063/1.4965691 PG 5 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300102 ER PT S AU Godfrey, BB AF Godfrey, Brendan B. BE Hogan, MJ TI Review and Recent Advances in PIC Modeling of Relativistic Beams and Plasmas SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO ID LORENTZ-BOOSTED FRAME; NUMERICAL STABILITY; PARTICLE CODES; SIMULATIONS; ALGORITHM; INSTABILITIES AB Particle-in-Cell (PIC) simulation codes have wide applicability to first-principles modeling of multidimensional nonlinear plasma phenomena, including wake-field accelerators. This review addresses both finite difference and pseudo-spectral PIC algorithms, including numerical instability suppression and generalizations of the spectral field solver. C1 [Godfrey, Brendan B.] Univ Maryland, College Pk, MD 20742 USA. [Godfrey, Brendan B.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RP Godfrey, BB (reprint author), Univ Maryland, College Pk, MD 20742 USA.; Godfrey, BB (reprint author), Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. EM brendan.godfrey@ieee.org NR 24 TC 0 Z9 0 U1 2 U2 2 PU AMER INST PHYSICS PI MELVILLE PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA SN 0094-243X BN 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 020004 DI 10.1063/1.4965593 PG 9 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300004 ER PT S AU Gonsalves, AJ Daniels, J Waldron, W Bulanov, SS Sasorov, PV Bobrova, NA Pieronek, C Antipov, S Liu, F Butler, J Leemans, WP AF Gonsalves, A. J. Daniels, J. Waldron, W. Bulanov, S. S. Sasorov, P. V. Bobrova, N. A. Pieronek, C. Antipov, S. Liu, F. Butler, J. Leemans, W. P. BE Hogan, MJ TI Increasing the Repetition Rate of Capillary Discharge Waveguides SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO DE plasma accelerators ID ELECTRON-ACCELERATORS AB Progress toward a hydrogen-filled capillary discharge waveguide operating at kHz repetition rates is presented. The discharge current pulse was optimized for erosion mitigation with laser guiding experiments and MHD simulation. Heat flow simulations showed modest temperature rise at the capillary wall due to the average heat load at kHz repetition rates which is promising for realizing applications of LPAs such as short-wavelength radiation sources. C1 [Waldron, W.; Leemans, W. P.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. [Bulanov, S. S.] Univ Calif Berkeley, Berkeley, CA 94720 USA. [Sasorov, P. V.] Keldysh Inst Appl Math, Moscow, Russia. [Bobrova, N. A.] Inst Theoret & Expt Phys, Moscow, Russia. [Butler, J.] Euclid TechLabs, Cleveland, OH 44139 USA. 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 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 040005 DI 10.1063/1.4965607 PG 5 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300018 ER PT S AU Huang, Z Baxevanis, P Benedetti, C Ding, Y Ruth, R Schroeder, C Wang, D Zhang, T AF Huang, Z. Baxevanis, P. Benedetti, C. Ding, Y. Ruth, R. Schroeder, C. Wang, D. Zhang, T. BE Hogan, MJ TI Compact laser-plasma-accelerator-driven free-electron laser using a transverse gradient undulator SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO DE Free-Electron Laser; Laser Plasma Accelerator; Transverse Gradient Undulator ID ENERGY SPREAD; BEAMS AB Laser-plasma accelerators can produce a few GeV electron beams over a distance of a few cm. Such beams typically have relatively low emittance and high peak current but a rather large energy spread and jitter. The large energy spread hinders the potential applications for coherent free-electron laser (FEL) radiation generation. In this paper, we discuss a method to compensate the effects of beam energy spread by introducing a transverse variation of the undulator magnetic field. Such a transverse gradient undulator (TGU) together with a properly dispersed beam can greatly reduce the effects of electron energy spread and jitter on FEL performance. We review the TGU concept and theory and discuss technical implementations. Using particle-in-cell simulations of a GeV laser-plasma accelerator and the FEL simulation code GENESIS that is modified to accommodate TGU, we show a soft x-ray FEL operating in the "water window" wavelengths can reach saturation with a undulator length of about 12 m. C1 [Huang, Z.; Baxevanis, P.; Ding, Y.; Ruth, R.] SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA. [Benedetti, C.; Schroeder, C.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. [Wang, D.; Zhang, T.] Shanghai Inst Appl Phys, Shanghai, Peoples R China. RP Huang, Z (reprint author), SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA. NR 17 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 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 040006 DI 10.1063/1.4965608 PG 5 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300019 ER PT S AU Jing, CG AF Jing, Chunguang BE Hogan, MJ TI Wakefield in Structures SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO DE Wakefield; collinear wakefield accelerator; two beam accelerator ID WAKE-FIELD ACCELERATION AB Recent progress in the generation of high-quality, high-current electron beams has enabled the development of structure based wakefield accelerators in use. The frequency spectrum available using these sources ranges from GHz to THz depending on the parameters of the beam and waveguide (dielectric-lined or metallic disk-loaded). In this paper, we discuss the choice of structure and beam parameters to achieve an efficient wakefield acceleration. C1 [Jing, Chunguang] Euclid Techlabs LLC, Solon, OH 44139 USA. [Jing, Chunguang] Argonne Natl Lab, Div High Energy Phys, Lemont, IL 60439 USA. RP Jing, CG (reprint author), Euclid Techlabs LLC, Solon, OH 44139 USA.; Jing, CG (reprint author), Argonne Natl Lab, Div High Energy Phys, Lemont, IL 60439 USA. EM jingchg@anl.gov NR 23 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 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 020003 DI 10.1063/1.4965592 PG 5 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300003 ER PT S AU Jing, CG Konecny, R Gold, SH AF Jing, Chunguang Konecny, R. Gold, Steven H. BE Hogan, MJ TI Experimental Study of Multipactor Suppression In Externally Powered Dielectric Accelerating Structures SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO DE Dielectric accelerator; multipactor AB Multipactor is the major issue limiting the gradient of Dielectric-Loaded Accelerating (DLA) structures. Theoretical models predict that a solenoidal magnetic field applied to DLA structures may completely supress the multipactor. To test this approach, two DLA structures were tested and strong multipactor suppression was observed. C1 [Jing, Chunguang; Konecny, R.] Euclid Techlabs LLC, Solon, OH 44139 USA. [Jing, Chunguang; Konecny, R.] Argonne Natl Lab, Div High Energy Phys, Lemont, IL 60439 USA. [Gold, Steven H.] Naval Res Lab, Div Plasma Phys, Washington, DC 20375 USA. RP Jing, CG (reprint author), Euclid Techlabs LLC, Solon, OH 44139 USA.; Jing, CG (reprint author), Argonne Natl Lab, Div High Energy Phys, Lemont, IL 60439 USA. EM jingchg@anl.gov NR 6 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 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 060004 DI 10.1063/1.4965633 PG 4 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300044 ER PT S AU Lee, P Vay, JL AF Lee, P. Vay, J. -L. BE Hogan, MJ TI Efficiency of the Perfectly Matched Layer with High-Order Finite Difference and Pseudo-Spectral Maxwell Solvers SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO ID WAVES; ABSORPTION AB Open boundaries are essential in the modeling of many applications including laser plasma acceleration in a boosted frame, for which it has been shown that pseudo-spectral solvers (which can also be viewed as the limit of higher order FDTD methods when the order goes to infinity) bring higher stability and accuracy. When modeling the absorption of outgoing waves in simulations with open boundaries condition, Perfectly Matched Layers (PML) [1] are the state of the art and can be applied to the pseudo-spectral solvers. This paper will present results from the application of the PML to the absorption of waves with high order FDTD and pseudo-spectral solvers in 1D and 2D. C1 [Lee, P.; Vay, J. -L.] Lawrence Berkeley Natl Lab, BELLA LOASIS Program, Berkeley, CA 94720 USA. RP Lee, P (reprint author), Lawrence Berkeley Natl Lab, BELLA LOASIS Program, Berkeley, CA 94720 USA. EM pmlee@lbl.gov NR 8 TC 0 Z9 0 U1 0 U2 0 PU AMER INST PHYSICS PI MELVILLE PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA SN 0094-243X BN 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 050002 DI 10.1063/1.4965625 PG 5 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300036 ER PT S AU Lemery, F Piot, P AF Lemery, F. Piot, P. BE Hogan, MJ TI Alternative Shapes and Shaping Techniques for Enhanced Transformer Ratios in Beam Driven Techniques SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO DE beam driven dielectric wakefield acceleration AB The transformer ratio of collinear beam-driven acceleration techniques can be significantly improved by shaping the current profile of the drive bunch. To date, several current shapes have been proposed to increase the transformer ratio and produce quasi-uniform energy loss within the drive bunch. Some of these tailoring techniques are possible as a result of recent beam-dynamics advances, e.g., transverse-to-longitudinal emittance exchanger. In this paper, we propose an alternative class of longitudinal shapes that enable high transformer ratio and uniform energy loss across the drive bunch. We also suggest a simple method based on photocathode-laser shaping and passive shaping in wakefield structure to realize a shape close to the theoretically optimized current profiles. C1 [Lemery, F.; Piot, P.] Northern Illinois Univ, Northern Illinois Ctr Accelerator & Detector Dev, De Kalb, IL 60115 USA. [Lemery, F.; Piot, P.] Northern Illinois Univ, Dept Phys, De Kalb, IL 60115 USA. [Piot, P.] Fermilab Natl Accelerator Lab, Accelerator Phys Ctr, POB 500, Batavia, IL 60510 USA. RP Lemery, F (reprint author), Northern Illinois Univ, Northern Illinois Ctr Accelerator & Detector Dev, De Kalb, IL 60115 USA.; Lemery, F (reprint author), Northern Illinois Univ, Dept Phys, De Kalb, IL 60115 USA. NR 11 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 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 070007 DI 10.1063/1.4965650 PG 5 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300061 ER PT S AU Lemery, F Piot, P AF Lemery, F. Piot, P. BE Hogan, MJ TI Passive Longitudinal-Phase-Space Tailoring of Non-Ultrarelativistic Beams with Dielectric-Lined Waveguides SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO DE beam-driven acceleration; wakefield; bunch compression; beam echo AB To date conventional use of dielectric-lined waveguides (DLWs) has mainly concerned high-gradient acceleration. In this paper we investigate an alternative use of such waveguides to impressed wakefield-induced energy correlations on non-ultra-relativistic beams. These correlations are shown to produce density modulations as the beam drifts in a free space. We explore several schemes with a single or multiple DLW structures which can lead to passive compressions and to the formation of sub-picosecond bunch trains. We finally suggest the possible use of multiple structures to bunch the beam at higher frequencies using a scheme similar to a two-stage echo enabled harmonic generation. C1 [Lemery, F.; Piot, P.] Northern Illinois Univ, Northern Illinois Ctr Accelerator & Detector Dev, De Kalb, IL 60115 USA. [Lemery, F.; Piot, P.] Northern Illinois Univ, Dept Phys, De Kalb, IL 60115 USA. [Piot, P.] Fermilab Natl Accelerator Lab, Accelerator Phys Ctr, Batavia, IL 60510 USA. RP Lemery, F (reprint author), Northern Illinois Univ, Northern Illinois Ctr Accelerator & Detector Dev, De Kalb, IL 60115 USA.; Lemery, F (reprint author), Northern Illinois Univ, Dept Phys, De Kalb, IL 60115 USA. NR 18 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 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 080008 DI 10.1063/1.4965665 PG 5 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300076 ER PT S AU Mao, HS Nakamura, K Gonsalves, AJ Toth, C Leemans, WP AF Mao, H. -S. Nakamura, K. Gonsalves, A. J. Toth, Cs. Leemans, W. P. BE Hogan, MJ TI High-Quality Spatial Modes for Petawatt-Class Lasers SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO DE laser-plasma accelerators; adaptive optics; deformable mirror; spatial beam quality AB In this paper, we report the methods used to obtain laser pulses with high spatial quality at the Berkeley Laboratory Laser Accelerator (BELLA) facility are reported. Strehl ratios of 0.85 have been achieved using a closed-loop adaptive optics system consisting of a deformable mirror and wavefront sensors. The implementation and the optimization techniques are described. Additionally, the challenges associated with running a deformable mirror on a petawatt-class laser are addressed. In addition to mitigating aberrations introduced by various optical components of the system, aberrations induced by different laser powers can also be compensated for. This allows for tunable laser powers without the need for cryogenic cooling of the final amplifiers. C1 [Mao, H. -S.; Nakamura, K.; Gonsalves, A. J.; Toth, Cs.; Leemans, W. P.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RP Mao, HS (reprint author), Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. NR 6 TC 0 Z9 0 U1 1 U2 1 PU AMER INST PHYSICS PI MELVILLE PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA SN 0094-243X BN 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 110003 DI 10.1063/1.4965692 PG 5 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300103 ER PT S AU Matlis, NH Gonsalves, AJ Steinke, S van Tilborg, J Geddes, CGR Shaw, B Leemans, WP AF Matlis, N. H. Gonsalves, A. J. Steinke, S. van Tilborg, J. Geddes, C. G. R. Shaw, B. Leemans, W. P. BE Hogan, MJ TI Effects of Gas Dynamics in Capillary-discharge-based LPA Targets with Embedded Gas Jets SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO ID ACCELERATOR AB We present a study of the effects and uses of gas dynamics within targets for laser-plasma accelerators (LPAs) based on capillary-discharge waveguides with embedded gas jets. The temporal evolution of the longitudinally-structured density profile was determined by using helium in the jet and hydrogen in the capillary and resolving the spatial distribution of the two gases as a function of the timing between the jet and the discharge. The gas distributions were captured by imaging the associated emission lines resulting from the plasma recombination. The results of the study guide the choice of jet and capillary pressures required to achieve the desired functionality of the target and also to offer possibilities for tuning of the target based on timing. C1 [Matlis, N. H.; Gonsalves, A. J.; Steinke, S.; van Tilborg, J.; Geddes, C. G. R.; Shaw, B.; Leemans, W. P.] Lawrence Berkeley Natl Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA. [Leemans, W. P.] Univ Calif Berkeley, Berkeley, CA 94720 USA. RP Matlis, NH (reprint author), Lawrence Berkeley Natl Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA. EM nhmatlis@lbl.gov NR 6 TC 0 Z9 0 U1 1 U2 1 PU AMER INST PHYSICS PI MELVILLE PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA SN 0094-243X BN 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 040012 DI 10.1063/1.4965614 PG 5 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300025 ER PT S AU Mittelberger, DE Nakamura, K Matlis, NH Mao, HS Gonsalves, AJ Daniels, J Esarey, E Leemans, WP AF Mittelberger, D. E. Nakamura, K. Matlis, N. H. Mao, H. S. Gonsalves, A. J. Daniels, J. Esarey, E. Leemans, W. P. BE Hogan, MJ TI Ionization-Based Spectral Phase Diagnostic for Laser Plasma Accelerators SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO ID PULSES AB This paper presents a novel diagnostic of laser spectral phase, based on spectral blueshifting from ionization of a known gas target, which allows in-situ measurements of high-peak-power laser pulses. A simulation was created to deconvolve the effects of high-order dispersion, optical compression, and gas density profile on blueshifted spectra. This simulation demonstrates sensitivity to third and fourth order spectral phase as well as neutral density and coarse spatial profile. Experimental results from the Berkeley Lab Laser Accelerator (BELLA), a laser source rigorously characterized by numerous time-profile measurements, are presented and compared with simulations in order to constrain the target density profile and illustrate the utility of this diagnostic technique. C1 [Mittelberger, D. E.; Nakamura, K.; Matlis, N. H.; Mao, H. S.; Gonsalves, A. J.; Daniels, J.; Esarey, E.; Leemans, W. P.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. [Mittelberger, D. E.] Univ Calif Berkeley, Berkeley, CA 94720 USA. [Daniels, J.] Eindhoven Univ Technol, Eindhoven, Netherlands. RP Mittelberger, DE (reprint author), Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.; Mittelberger, DE (reprint author), Univ Calif Berkeley, Berkeley, CA 94720 USA. EM DEMittelberger@lbl.gov NR 11 TC 0 Z9 0 U1 1 U2 1 PU AMER INST PHYSICS PI MELVILLE PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA SN 0094-243X BN 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 040013 DI 10.1063/1.4965615 PG 5 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300026 ER PT S AU Najmudin, Z Fiuza, F Fernandez, JC AF Najmudin, Z. Fiuza, F. Fernandez, J. C. BE Hogan, MJ TI Summary of Working Group 6: Ion Acceleration with Lasers SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO AB Working group 6 proved to be a lively and stimulating atmosphere for the discussion of latest advances in high-intensity driven ion sources. There were 16 invited presentations dispersed over 6 working group sessions, but particularly noteworthy were the spirited and insightful contributions from the other working participants of the working group. The contributions could be grouped into two major themes, technology advances highlighting both the development of state-of-the-art targetry and also direct application of laser-generated ion sources. The second major theme focused on the improvement on ion beam properties from these interactions, so that these ion sources can reach the required parameters for the many suggested applications. Furthermore, there was a clear distinction in the experiments and methods depending on whether initially solid or gas targets were used. To give a overarching perspective to the working group, the participants, irrespective of their chosen topic, were hence asked to consider the following questions: What are the applications for laser driven ion beams? What parameters do these applications need? How close to those parameters are you (we)? C1 [Najmudin, Z.] Imperial Coll London, London SW7 2AZ, England. [Fiuza, F.] SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA. [Fernandez, J. C.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Najmudin, Z (reprint author), Imperial Coll London, London SW7 2AZ, England. EM z.najmudin@imperial.ac.uk NR 0 TC 0 Z9 0 U1 1 U2 1 PU AMER INST PHYSICS PI MELVILLE PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA SN 0094-243X BN 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 030006 DI 10.1063/1.4965600 PG 4 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300011 ER PT S AU Nakamura, K Mao, HS Gonsalves, AJ Magana, A Riley, J Toth, C Leemans, WP AF Nakamura, K. Mao, H-S. Gonsalves, A. J. Magana, A. Riley, J. Toth, C. Leemans, W. P. BE Hogan, MJ TI Diagnostics and Controls for Temporal Structure of the BELLA Laser System SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO DE Laser plasma acceleration; peta-watt laser; Sequoia; Grenouille ID ELECTRON-BEAMS; ACCELERATOR; CONTRAST; PULSES AB The world's first 1 Hz, 1 Petawatt laser system was acquired from THALES and implemented at the Berkeley Lab Laser Accelerator (BELLA) facility. The BELLA laser is used to explore the physics of laser plasma interactions with an emphasis on development of a 10-GeV class Laser Plasma Accelerator (LPA). The temporal shape of the laser pulse is critical for LPA performance. The diagnostics (Sequoia and Grenouille) and controls for the temporal pulse shape of the laser via the incident angle to the compressor gratings are discussed. For the first experimental campaign, the BELLA laser delivered pulses with pulse length of similar to 40 fs full-width-half-maximum and pulse contrast of similar to 1x10(-8) at 30 ps. C1 [Nakamura, K.; Mao, H-S.; Gonsalves, A. J.; Magana, A.; Riley, J.; Toth, C.; Leemans, W. P.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. [Leemans, W. P.] Univ Calif Berkeley, Berkeley, CA 94720 USA. RP Nakamura, K (reprint author), Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. NR 22 TC 0 Z9 0 U1 1 U2 1 PU AMER INST PHYSICS PI MELVILLE PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA SN 0094-243X BN 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 110004 DI 10.1063/1.4965693 PG 5 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300104 ER PT S AU Neuffer, D AF Neuffer, David BE Hogan, MJ TI New Approaches to Final Cooling SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO AB A high-energy muon collider scenario require a "final cooling" system that reduces transverse emittance by a factor of similar to 10 while allowing longitudinal emittance increase. The baseline approach has low-energy transverse cooling within high-field solenoids, with strong longitudinal heating. This approach and its recent simulation are discussed. Alternative approaches which more explicitly include emittance exchange are also presented. Round-to-flat beam transform, transverse slicing, and longitudinal bunch coalescence are possible components of the alternative approach. A more explicit understanding of solenoidal cooling beam dynamics is introduced. C1 [Neuffer, David] Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA. RP Neuffer, D (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA. NR 12 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 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 100005 DI 10.1063/1.4965686 PG 5 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300097 ER PT S AU Pogorelsky, IV Murokh, A AF Pogorelsky, Igor V. Murokh, Alex BE Hogan, MJ TI Future Compact Light Sources Driven by CO2 Lasers SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO ID SCATTERING AB Ongoing research on Compton radiation sources is aimed toward developing university-scale compact x-ray-and gamma-radiation-sources. Novel conceptual approaches are being pursued along different routes: One research direction lies in multiplying the source's repetition rate, and increasing its average brightness by placing the point of Compton interaction inside an optical cavity. High-gradient plasma-wakefield accelerators are fast becoming a practical reality, offering a new paradigm for compact all-optical Compton sources operating in x-ray-and gamma-regions. Continually bettering the quality of the beam of plasma accelerators promises the achievement of fully coherent Compton x-rays, thereby prompting the evolution of the Compton source to an all-optical free-electron laser. Intense lasers can move the high-energy cut-off limit in a Compton spectrum by efficiently generating high-order harmonics. The ATF's user-and upgrade-programs based on ultra-fast CO2 laser technology strongly support all these research thrusts.. C1 [Pogorelsky, Igor V.] Brookhaven Natl Lab, Collider Accelerator Dept, Accelerator Test Facil, Upton, NY 11973 USA. [Murokh, Alex] RadiaBeam Technol LLC, Santa Monica, CA USA. RP Pogorelsky, IV (reprint author), Brookhaven Natl Lab, Collider Accelerator Dept, Accelerator Test Facil, Upton, NY 11973 USA. EM igor@bnl.gov NR 14 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 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 080011 DI 10.1063/1.4965668 PG 6 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300079 ER PT S AU Polyanskiy, MN Babzien, M Pogorelsky, IV AF Polyanskiy, Mikhail N. Babzien, Marcus Pogorelsky, Igor V. BE Hogan, MJ TI 100-Terawatt CO2 Laser: Design and Current Status SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO AB The terawatt mid-IR laser system of the Accelerator Test Facility at BNL is being upgraded with the ultimate goal of achieving a 100-TW peak power. The system design and the status of its implementation are discussed. C1 [Polyanskiy, Mikhail N.; Babzien, Marcus; Pogorelsky, Igor V.] Brookhaven Natl Lab, Bldg 820M, Upton, NY 11973 USA. RP Polyanskiy, MN (reprint author), Brookhaven Natl Lab, Bldg 820M, Upton, NY 11973 USA. EM polyanskiy@bnl.gov NR 7 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 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 110006 DI 10.1063/1.4965695 PG 5 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300106 ER PT S AU Power, J Travish, G AF Power, John Travish, Gil BE Hogan, MJ TI Summary Report of Working Group 3: Laser and High-Gradient Structure-Based Acceleration SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO AB The charge, summary of discussions, and presentations held during Working Group 3 of the 2014 Advanced Accelerator Concepts (AAC) Workshop are described in this report. This working group covered high-gradient structures, including RF-and laser-powered schemes. C1 [Power, John] Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA. [Travish, Gil] Univ Calif Los Angeles, Dept Phys & Astron, Los Angeles, CA 90095 USA. RP Power, J (reprint author), Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA. EM travish@physics.ucla.edu 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 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 030003 DI 10.1063/1.4965597 PG 7 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300008 ER PT S AU Schroeder, CB Esarey, E Benedetti, C Leemans, WP AF Schroeder, C. B. Esarey, E. Benedetti, C. Leemans, W. P. BE Hogan, MJ TI Efficiency considerations for high-energy physics applications of laser-plasma accelerators SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO DE laser plasma electron acceleration; lepton collider ID ELECTRON-ACCELERATORS; CHANNEL AB The efficiency of laser-plasma accelerators for high-energy physics applications is discussed. The laser and beam-driven wakefields in plasma channels are presented. Plasma channels enable independent control of accelerating and focusing forces, allowing both electron and positron acceleration, as well as mitigation of beam scattering with background ions. Shaped bunches may be used to achieve high efficiency without induced energy spread. High efficiency may be achieved for ultra-short bunches using a multi-bunch train format, without induced energy spread. A method for laser energy recovery is proposed, and a general expression for the driver-to-beam efficiency of a laser-plasma accelerator stage is derived. With the use of laser energy recovery, high efficiencies may be achieved for modest drive laser depletion. C1 [Schroeder, C. B.; Esarey, E.; Benedetti, C.; Leemans, W. P.] Lawrence Berkeley Natl Lab, BELLA Ctr, Berkeley, CA 94720 USA. RP Schroeder, CB (reprint author), Lawrence Berkeley Natl Lab, BELLA Ctr, Berkeley, CA 94720 USA. NR 25 TC 0 Z9 0 U1 1 U2 1 PU AMER INST PHYSICS PI MELVILLE PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA SN 0094-243X BN 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 020001 DI 10.1063/1.4965590 PG 9 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300001 ER PT S AU Seymour, A Grote, D Mihalcea, D Piot, P Vay, JL AF Seymour, A. Grote, D. Mihalcea, D. Piot, P. Vay, J. -L. BE Hogan, MJ TI Beam Dynamics Simulations of Optically-Enhanced Field Emission from Structured Cathodes SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO DE electron sources; photoemission; field emission; beam dynamics AB Structured cathodes - cathodes with a segmented emission surface - are finding an increasing number of applications and can be combined with a variety of emission mechanisms, including photoemission and field emission. These cathodes have been used to enhance the quantum efficiency of metallic cathodes when operated as plasmonic cathodes, have produced high-current electron bunches though field emission from multiple tips, and can be used to form beams with transverse segmentations necessary for improving the performance of accelerator-based light sources. In this report we present recent progress towards the development of finite-difference time-domain particle-in-cell simulations using the emission process in structured cathodes based on the WARP framework. The simulations give further insight on the localized source of the emitted electrons which could be used for additional high-fidelity start-to-end simulations of electron accelerators that employ this type of electron source. C1 [Seymour, A.; Mihalcea, D.; Piot, P.] Northern Illinois Univ, Northern Illinois Ctr Accelerator & Detector Dev, De Kalb, IL 60115 USA. [Seymour, A.; Mihalcea, D.; Piot, P.] Northern Illinois Univ, Dept Phys, De Kalb, IL 60115 USA. [Grote, D.] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. [Piot, P.] Fermilab Natl Accelerator Lab, Accelerator Phys Ctr, POB 500, Batavia, IL 60510 USA. [Vay, J. -L.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RP Seymour, A (reprint author), Northern Illinois Univ, Northern Illinois Ctr Accelerator & Detector Dev, De Kalb, IL 60115 USA.; Seymour, A (reprint author), Northern Illinois Univ, Dept Phys, De Kalb, IL 60115 USA. NR 13 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 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 080014 DI 10.1063/1.4965671 PG 5 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300082 ER PT S AU Shao, JH Antipov, S Baryshev, SV Chen, HB Conde, ME Doran, DS Gai, W Jing, C Liu, W Power, JG Qiu, JQ Shi, JR Wang, FY Whiteford, C Wisniewski, E Xiao, LL AF Shao, J. H. Antipov, S. Baryshev, S. V. Chen, H. B. Conde, M. E. Doran, D. S. Gai, W. Jing, C. Liu, W. Power, J. G. Qiu, J. Q. Shi, J. R. Wang, F. Y. Whiteford, C. Wisniewski, E. Xiao, L. L. BE Hogan, MJ TI Field Emission Study using an L-band Photocathode Gun SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO AB Field emission is strongly coupled to the breakdown problem. A series of experiments is being carried out at Argonne Wakefield Accelerator Facility (AWA) using an L-band photocathode gun. Cathodes with different shapes have been tested and a dark current imaging system has been set up. Initial experiment results are presented. C1 [Shao, J. H.; Chen, H. B.; Shi, J. R.] Tsinghua Univ, Beijing, Peoples R China. [Wang, F. Y.; Xiao, L. L.] SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA. [Shao, J. H.; Antipov, S.; Baryshev, S. V.; Conde, M. E.; Doran, D. S.; Gai, W.; Jing, C.; Liu, W.; Power, J. G.; Qiu, J. Q.; Whiteford, C.; Wisniewski, E.] Argonne Natl Lab, Lemont, IL 60439 USA. [Antipov, S.; Baryshev, S. V.; Jing, C.; Qiu, J. Q.] Euclid Techlabs LLC, Solon, OH 44139 USA. RP Shao, JH (reprint author), Tsinghua Univ, Beijing, Peoples R China.; Shao, JH (reprint author), Argonne Natl Lab, Lemont, IL 60439 USA. EM jshao@anl.gov NR 10 TC 0 Z9 0 U1 2 U2 2 PU AMER INST PHYSICS PI MELVILLE PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA SN 0094-243X BN 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 060008 DI 10.1063/1.4965637 PG 5 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300048 ER PT S AU Shaw, BH van Tilborg, J Sokollik, T Schroeder, CB Leemans, WP AF Shaw, B. H. van Tilborg, J. Sokollik, T. Schroeder, C. B. Leemans, W. P. BE Hogan, MJ TI Megawatt Level Surface High-harmonic Generation From Thin, Replenishing, Solid Tapes SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO DE laser-plasma accelerators; Free-electron lasers; Harmonic generation (nonlinear optics) ID LASER-DRIVEN; ELECTRON-BEAMS; ACCELERATOR; RADIATION AB High-harmonic generation (HHG) from replenishing tape surfaces allows for multi-Hz applications. Unlike conventional gas-based HHG, solid-surface HHG (SHHG) uses peak laser intensities upwards of 10(18) - 10(19) W/cm(2). This allows a fs-class 100 mJ pulse to be focused down tighter, enabling a more compact harmonic generating setup. Operating in the sub-relativistic Coherent Wake Emission (CWE) regime, we have experimentally investigated MW-level XUV-domain photons produced from different tape materials. The tapes are thin and can be used as beam combining optics for LPA electron beams and HHG seed radiation. C1 [Shaw, B. H.; van Tilborg, J.; Sokollik, T.; Schroeder, C. B.; Leemans, W. P.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. [Shaw, B. H.] Univ Calif Berkeley, Appl Sci & Technol Grad Grp, Berkeley, CA 94720 USA. [Leemans, W. P.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. RP Shaw, BH (reprint author), Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.; Shaw, BH (reprint author), Univ Calif Berkeley, Appl Sci & Technol Grad Grp, Berkeley, CA 94720 USA. NR 22 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 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 080015 DI 10.1063/1.4965672 PG 5 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300083 ER PT S AU Shchegolkov, DY Simakov, EI Jing, C Li, C Zholents, AA Power, JG AF Shchegolkov, D. Yu. Simakov, E. I. Jing, C. Li, C. Zholents, A. A. Power, J. G. BE Hogan, MJ TI Suppressing Parasitic Effects in a Long Dielectric Wakefield Accelerator SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO AB Dielectric wakefield acceleration is a promising concept for increasing the accelerating gradient above the limits of conventional accelerators. Although superior gradients are reported in short dielectric wakefield accelerator tubes, problems arise when it comes to efficiency and multi-meter long interaction lengths. Here we discuss possible issues and provide some solutions backed by simulations. C1 [Shchegolkov, D. Yu.; Simakov, E. I.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. [Jing, C.] Euclid TechLabs LLC, Solon, OH 44139 USA. [Jing, C.; Li, C.; Zholents, A. A.; Power, J. G.] Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA. RP Shchegolkov, DY (reprint author), Los Alamos Natl Lab, Los Alamos, NM 87545 USA. EM d_shcheg@lanl.gov OI Simakov, Evgenya/0000-0002-7483-1152 NR 5 TC 0 Z9 0 U1 1 U2 1 PU AMER INST PHYSICS PI MELVILLE PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA SN 0094-243X BN 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 070009 DI 10.1063/1.4965652 PG 5 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300063 ER PT S AU Shin, YM Lumpkin, AH Thangaraj, JC Thurman-Keup, RM Shiltsev, V AF Shin, Y. M. Lumpkin, A. H. Thangaraj, J. C. Thurman-Keup, R. M. Shiltsev, V. BE Hogan, MJ TI TeV/m Nano-Accelerator: Current Status of CNT-Channeling Acceleration Experiment SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO AB Crystal channeling technology has offered various opportunities in the accelerator community with a viability of ultrahigh gradient (TV/m) acceleration for future HEP collider. The major challenge of channeling acceleration is that ultimate acceleration gradients might require a high power driver in the hard x-ray regime (similar to 40 keV). This x-ray energy exceeds those for x-rays as of today, although x-ray lasers can efficiently excite solid plasma and accelerate particles inside a crystal channel. Moreover, only disposable crystal accelerators are possible at such high externally excited fields, which would exceed the ionization thresholds which destroy the atomic structure, so acceleration will take place only in a short time before full dissociation of the lattice. Carbon-based nanostructures have great potential with a wide range of flexibility and superior physical strength, which can be applied to channeling acceleration. This paper presents a beam-driven channeling acceleration concept with CNTs and discusses feasible experiments with the Advanced Superconducting Test Accelerator (ASTA) at Fermilab. C1 [Shin, Y. M.] Northern Illinois Univ, Dept Phys, NICADD, De Kalb, IL 60115 USA. [Shin, Y. M.; Lumpkin, A. H.; Thangaraj, J. C.; Thurman-Keup, R. M.; Shiltsev, V.] Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA. RP Shin, YM (reprint author), Northern Illinois Univ, Dept Phys, NICADD, De Kalb, IL 60115 USA.; Shin, YM (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA. EM yshin@niu.edu NR 6 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 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 060010 DI 10.1063/1.4965639 PG 5 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300050 ER PT S AU Simakov, EI Arsenyev, SA Buechler, CE Edwards, R Romero, W AF Simakov, Evgenya I. Arsenyev, Sergey A. Buechler, Cynthia E. Edwards, Randall Romero, William BE Hogan, MJ TI Experimental Study of Wakefields in an X-band Photonic Band Gap Accelerating Structure SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO AB We designed an experiment to conduct a detailed investigation of the higher order mode spectrum in a room-temperature traveling-wave photonic band gap (PBG) accelerating structure at 11.7 GHz. It has been long recognized that PBG structures have great potential in reducing long-range wakefields in accelerators. The first ever demonstration of acceleration in room-temperature PBG structures was conducted at MIT in 2005. Since then, the importance of that device has been recognized by many research institutions. However, the full experimental characterization of the wakefield spectrum in a beam test has not been performed to date. The Argonne Wakefield Accelerator (AWA) test facility at the Argonne National Laboratory represents a perfect site where this evaluation could be conducted with a single high charge electron bunch and with a train of bunches. The PBG structure was built and consists of sixteen 2 pi/3 traveling-wave cells, including two coupler cells. In this paper we will describe fabrication and tuning of the PBG cells, and the results of the final cold-test of the traveling-wave accelerating structure. Next we will discuss the plan for the wakefield experiment. C1 [Simakov, Evgenya I.; Arsenyev, Sergey A.; Buechler, Cynthia E.; Edwards, Randall; Romero, William] Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA. RP Simakov, EI (reprint author), Los Alamos Natl Lab, POB 1663, Los Alamos, NM 87545 USA. EM smirnova@lanl.gov OI Simakov, Evgenya/0000-0002-7483-1152 NR 9 TC 0 Z9 0 U1 1 U2 1 PU AMER INST PHYSICS PI MELVILLE PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA SN 0094-243X BN 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 060011 DI 10.1063/1.4965640 PG 5 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300051 ER PT S AU Stancari, G AF Stancari, Giulio BE Hogan, MJ TI Applications of electron lenses: scraping of high-power beams, beam-beam compensation, and nonlinear optics SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO DE nonlinear beam dynamics; electron lens; collimation; beam-beam effects AB Electron lenses are pulsed, magnetically confined electron beams whose current-density profile is shaped to obtain the desired effect on the circulating beam. Electron lenses were used in the Fermilab Tevatron collider for bunch-by-bunch compensation of long-range beam-beam tune shifts, for removal of uncaptured particles in the abort gap, for preliminary experiments on head-on beam-beam compensation, and for the demonstration of halo scraping with hollow electron beams. Electron lenses for beam-beam compensation are being commissioned in the Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory (BNL). Hollow electron beam collimation and halo control were studied as an option to complement the collimation system for the upgrades of the Large Hadron Collider (LHC) at CERN; a conceptual design was recently completed. Because of their electric charge and the absence of materials close to the proton beam, electron lenses may also provide an alternative to wires for long-range beam-beam compensation in LHC luminosity upgrade scenarios with small crossing angles. At Fermilab, we are planning to install an electron lens in the Integrable Optics Test Accelerator (IOTA, a 40-m ring for 150-MeV electrons) as one of the proof-of-principle implementations of nonlinear integrable optics to achieve large tune spreads and more stable beams without loss of dynamic aperture. C1 [Stancari, Giulio] Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA. RP Stancari, G (reprint author), Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA. NR 28 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 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 100007 DI 10.1063/1.4965688 PG 5 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300099 ER PT S AU Steinke, S Matlis, NH van Tilborg, J Shaw, BH Geddes, CGR Gonsalves, AJ Nakamura, K Mittelberger, DE Daniels, J Roberts, AD Sokollik, T Shiraishi, S Vay, JL Esarey, E Schroeder, CB Benedetti, C Toth, C Leemans, WP AF Steinke, S. Matlis, N. H. van Tilborg, J. Shaw, B. H. Geddes, C. G. R. Gonsalves, A. J. Nakamura, K. Mittelberger, D. E. Daniels, J. Roberts, A. D. Sokollik, T. Shiraishi, S. Vay, J. -L. Esarey, E. Schroeder, C. B. Benedetti, C. Toth, C. Leemans, W. P. BE Hogan, MJ TI Staged Acceleration Experiments SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO DE laser-plasma accelerators; staged acceleration; capillary waveguide ID ELECTRON-ACCELERATORS; PLASMA LENS; BEAMS AB We present initial experiments on staging of two separately driven laser plasma accelerators (LPAs) towards high energy physics and beam deceleration experiments. A study establishing long term stability of electron beams accelerated by an LPA in density downramp configuration [1] is presented, demonstrating the appropriateness of these beams as an injector for staged acceleration. Subsequently, these injector beams are used to longitudinally probe the fully characterized wakefield [2] excited in a discharge-capillary-based second stage accelerator. C1 [Steinke, S.; Matlis, N. H.; van Tilborg, J.; Shaw, B. H.; Geddes, C. G. R.; Gonsalves, A. J.; Nakamura, K.; Mittelberger, D. E.; Daniels, J.; Roberts, A. D.; Sokollik, T.; Shiraishi, S.; Vay, J. -L.; Esarey, E.; Schroeder, C. B.; Benedetti, C.; Toth, C.; Leemans, W. P.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. [Roberts, A. D.] Minnesota State Univ, Mankato, MN 56001 USA. RP Steinke, S (reprint author), Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RI Steinke, Sven/D-8086-2011 OI Steinke, Sven/0000-0003-0507-698X NR 16 TC 0 Z9 0 U1 3 U2 3 PU AMER INST PHYSICS PI MELVILLE PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA SN 0094-243X BN 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 040016 DI 10.1063/1.4965618 PG 5 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300029 ER PT S AU Stratakis, D AF Stratakis, Diktys BE Hogan, MJ TI Advanced cooling scheme with gas filled rf cavities and discrete absorbers SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO AB A fast cooling technique is described that simultaneously reduces all six phase-space dimensions of a muon beam. In this process, cooling is accomplished by reducing the beam momentum through ionization energy loss in wedge absorbers and replenishing the momentum loss only in the longitudinal direction by using gas-filled rf cavities. With the aid of numerical simulations we show that the transmission is comparable to that of an equivalent channel with vacuum rf cavities. Furthermore, the final emittances achieved satisfy the cooling criteria for a Muon Collider. Finally, we discuss the sensitivity in performance for various gas pressures. C1 [Stratakis, Diktys] Brookhaven Natl Lab, Upton, NY 11973 USA. RP Stratakis, D (reprint author), Brookhaven Natl Lab, Upton, NY 11973 USA. EM diktys@bnl.gov NR 13 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 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 100008 DI 10.1063/1.4965689 PG 5 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300100 ER PT S AU Teryaev, V Shchelkunov, SV Hirshfield, JL Solyak, N Yakovlev, V Kazakov, SY Ives, RL AF Teryaev, V. Shchelkunov, S. V. Hirshfield, J. L. Solyak, N. Yakovlev, V. Kazakov, S. Yu. Ives, R. L. BE Hogan, MJ TI Status of High-Power Low-Voltage Multi-Beam Klystrons for ILC and Project X SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO AB We present the current status of the 6-beamlet quadrant of the Omega-P ILC and 6-beamlet PX ( Project X) L-band multi-beam klystrons. The tubes are designed to have low operating voltage, 60 kV and 30 kV, respectively, and to be 65% efficient. Low voltages are to provide advantages of not requiring pulse transformers or oil-tanks for high-voltage components and compact modulators. A one-quadrant version of the ILC tube has been built, assembled, leak-checked, and baked out. Testing in the coming months is anticipated. The tube is expected to produce 2.5 MW at 1.3 GHz in a 1.6 ms-wide pulse at a 10 Hz pulse rate. A full four-quadrant future version is to produce 10 MW, to be suitable for the International Linear Collider. The PX tube has been fully designed and its engineering drawings for the majority of components have been finalized. The design aims to produce 520 kW, and would operate in one of two regimes: either at a repetition rate of 2 Hz, delivering 30 msec pulses, or a repetition rate of 10Hz, delivering 8.5 msec-long pulses. No plans currently exist to build the PX tube. C1 [Teryaev, V.; Hirshfield, J. L.] Omega P Inc, New Haven, CT 06510 USA. [Shchelkunov, S. V.; Hirshfield, J. L.] Yale Univ, New Haven, CT 06511 USA. [Solyak, N.; Yakovlev, V.; Kazakov, S. Yu.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA. [Ives, R. L.] Calbazas Creek Res, Foster City, CA 94404 USA. RP Teryaev, V (reprint author), Omega P Inc, New Haven, CT 06510 USA. EM vladimir_teryaev@mail.ru; sergey.shchelkunov@gmail.com NR 5 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 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 060009 DI 10.1063/1.4965638 PG 6 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300049 ER PT S AU Thangaraj, JCT Mihalcea, D Panuganti, H Lemery, F Piot, P Shin, YM AF Thangaraj, J. C. T. Mihalcea, D. Panuganti, H. Lemery, F. Piot, P. Shin, Y-M. BE Hogan, MJ TI Bunch shaping experiments at the high brightness electron beam source laboratory (HBESL) SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO DE drive laser shaping; longitudinal space charge; photoinjector; bunching; deflecting mode cavity ID BIREFRINGENT CRYSTALS; PULSES AB In this paper, we present recent results from bunch-shaping experiments using alpha-BBO crystal at the High Brightness Electron Beam Source Laboratory (HBESL). alpha-BBO crystals were used to shape the ultra-short laser pulse (< 100fs) at HBESL to generate twin pulses at the cathode. The twin electron pulses were transported down the linac ( < 5 MeV) to a transverse deflecting mode cavity and the temporal profile recorded on the screen. The longitudinal time profile of the twin pulses show the difference between the effect of crystals and the longitudinal space charge effect. The electron beam was recorded for various position of the crystal and bunch charge. C1 [Thangaraj, J. C. T.; Mihalcea, D.; Panuganti, H.; Lemery, F.; Piot, P.; Shin, Y-M.] Fermilab Natl Accelerator Lab, Accelerator Phys Ctr, POB 500, Batavia, IL 60510 USA. [Mihalcea, D.; Panuganti, H.; Lemery, F.; Piot, P.; Shin, Y-M.] Northern Illinois Univ, Dept Phys, De Kalb, IL 60115 USA. RP Thangaraj, JCT (reprint author), Fermilab Natl Accelerator Lab, Accelerator Phys Ctr, POB 500, Batavia, IL 60510 USA. NR 13 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 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 080017 DI 10.1063/1.4965674 PG 5 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300085 ER PT S AU Tochitsky, S Fiuza, F Joshi, C AF Tochitsky, Sergei Fiuza, Frederico Joshi, Chan BE Hogan, MJ TI Prospects and Directions of CO2 Laser-driven Accelerators SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO ID COLLISIONLESS SHOCKS; PICOSECOND; PULSES; AMPLIFICATION; AMPLIFIER AB This paper reviews the current status of picosecond CO2 lasers. Prospective technologies for the generation of 10 mu m laser pulses at a peak power level of 30 to 200 TW in a single-shot regime and 1 to 10 TW at a high repetition frequency are discussed. Such laser-drivers are useful for shock wave acceleration of monoenergetic ions in a gas jet plasma, as well for other advanced accelerator schemes. C1 [Tochitsky, Sergei; Joshi, Chan] UCLA, Dept Elect Engn, Neptune Lab, Los Angeles, CA 90095 USA. [Fiuza, Frederico] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA. RP Tochitsky, S (reprint author), UCLA, Dept Elect Engn, Neptune Lab, Los Angeles, CA 90095 USA. EM sergei12@ucla.edu NR 23 TC 0 Z9 0 U1 3 U2 3 PU AMER INST PHYSICS PI MELVILLE PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA SN 0094-243X BN 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 020005 DI 10.1063/1.4965594 PG 10 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300005 ER PT S AU van Tilborg, J Daniels, J Gonsalves, AJ Esarey, E Schroeder, CB Leemans, WP AF van Tilborg, J. Daniels, J. Gonsalves, A. J. Esarey, E. Schroeder, C. B. Leemans, W. P. BE Hogan, MJ TI Measurement of the laser pulse group velocity in plasma waveguides SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO DE Plasma guiding channels; laser group velocity; spectral interferometry; discharge waveguides AB The laser group velocity in discharged capillary channels plays a critical role in laser-plasma accelerators. The laser travel time (and thus the group velocity) was measured through two-pulse frequency-domain interferometry and was found to depend on the on-axis plasma density and laser spot size. Experiments and multi-mode simulations were found to be in agreement. C1 [van Tilborg, J.; Daniels, J.; Gonsalves, A. J.; Esarey, E.; Schroeder, C. B.; Leemans, W. P.] Lawrence Berkeley Natl Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA. RP van Tilborg, J (reprint author), Lawrence Berkeley Natl Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA. NR 5 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 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 040017 DI 10.1063/1.4965619 PG 4 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300030 ER PT S AU Vay, JL Geddes, CGR Schroeder, CB Esarey, E Leemans, WP AF Vay, J. -L. Geddes, C. G. R. Schroeder, C. B. Esarey, E. Leemans, W. P. BE Hogan, MJ TI Beam Emittance Conservation in Multiple Consecutive Laser-Plasma Accelerator Stages SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO AB A laser plasma accelerator-based collider will necessitate chaining of something of the order of hundreds of individual acceleration stages. Matching the electron beam at the entrance of each stage in order to obtain emittance conservation within and during transition between stages is crucial for beam quality preservation along the entire acceleration chain. Previous studies have addressed the matching conditions for two consecutive stages. In this simulation study, we focus on the matching of a short electron beam in a string of stages, using short down-ramps of the order of the electron beam betatron period, demonstrating emittance conservation for up to six consecutive stages. C1 [Vay, J. -L.; Geddes, C. G. R.; Schroeder, C. B.; Esarey, E.; Leemans, W. P.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RP Vay, JL (reprint author), Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. EM jlvay@lbl.gov NR 12 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 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 040018 DI 10.1063/1.4965620 PG 5 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300031 ER PT S AU Vay, JL Arefiev, A AF Vay, Jean-Luc Arefiev, Alexey BE Hogan, MJ TI Summary Report ofWorking Group 2: Computations for Accelerator Physics SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO ID VARIATIONAL FORMULATION; NUMERICAL STABILITY; PLASMA SIMULATIONS; PIC SIMULATIONS; ALGORITHM AB The presentations in this working group were focused on methods that push the state of the art in computer modeling of particle accelerators through increased accuracy, speed of execution, breadth of physical models, validation, versatility of application or usability of computer codes. The topics covered during the workshop include: novel algorithms, reduced models, more efficient implementation (such as single core optimization and parallelization), next generation hardware (CPU, GPU, manycore), extension and integration of physical models and numerical tools, evaluation and numerical analysis of algorithms performance and stability, validation and verification. C1 [Vay, Jean-Luc] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. [Arefiev, Alexey] Univ Texas Austin, Inst Fus Studies, Austin, TX 78712 USA. RP Vay, JL (reprint author), Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RI Arefiev, Alexey/A-8550-2016 OI Arefiev, Alexey/0000-0002-0597-0976 NR 24 TC 1 Z9 1 U1 0 U2 0 PU AMER INST PHYSICS PI MELVILLE PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA SN 0094-243X BN 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 030002 DI 10.1063/1.4965596 PG 7 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300007 ER PT S AU Wang, D Antipov, S Conde, M Doran, S Gai, W Jing, C Liu, W Power, J Qiu, J Wisniewski, E Schegolkov, D Simakov, J AF Wang, D. Antipov, S. Conde, M. Doran, S. Gai, W. Jing, C. Liu, W. Power, J. Qiu, J. Wisniewski, E. Schegolkov, D. Simakov, J. BE Hogan, MJ TI High Power RF Generation at W-band Based on Wakefield Excited by Electron Bunch Train SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO AB We present the planned experiment on high power RF generation at W-band, based on the coherent wakefield from the metallic periodic structure of 91 GHz, excited by intense charged bunch train at the Argonne Wakefield Accelerator (AWA) facility. The output RF peak power is expected to be similar to 100 MW and the electrical field gradient can reach up to 400 MV/m, with RF pulse duration adjustable from few ns to 30 ns when excited by the bunch train of 75 MeV, with 5 similar to 10 nC charge in a single bunch and up to 32 sub bunches in total. We report the design and bench test result of the W-band structure, introduce the basic theoretical background of RF generation excited by bunch train and numerical simulation results from CST wakefield solver, which agree well with the analysis. We also design the RF measurement setup, with an 8th harmonic mixer to measure the frequency and a small witness beam to measure the wakefield in the structure. All prepared work goes well and we will perform this experiment in the near future. C1 [Wang, D.; Antipov, S.; Conde, M.; Doran, S.; Gai, W.; Jing, C.; Liu, W.; Power, J.; Qiu, J.; Wisniewski, E.] Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA. [Wang, D.] Tsinghua Univ, Beijing 100084, Peoples R China. [Antipov, S.; Jing, C.; Qiu, J.] Euclid Tech Labs LLC, Argonne, IL 60439 USA. [Schegolkov, D.; Simakov, J.] Los Alamos Natl Lab, Los Alamos, NM 87545 USA. RP Wang, D (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA.; Wang, D (reprint author), Tsinghua Univ, Beijing 100084, Peoples R China. EM d.wang@anl.gov; wg@anl.gov OI Simakov, Evgenya/0000-0002-7483-1152 NR 8 TC 0 Z9 0 U1 0 U2 0 PU AMER INST PHYSICS PI MELVILLE PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA SN 0094-243X BN 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 070013 DI 10.1063/1.4965656 PG 5 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300067 ER PT S AU White, B Babzien, M AF White, Bill Babzien, Marcus BE Hogan, MJ TI Summary Report of Working Group 8: Laser Technology of Laser - Plasma Accelerators SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO DE laser plasma electron acceleration AB A brief summary of Working Group 8 on Laser Technology of Laser - Plasma Accelerators is presented. C1 [White, Bill] SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA. [Babzien, Marcus] Brookhaven Natl Lab, Upton, NY 11973 USA. RP White, B (reprint author), SLAC Natl Accelerator Lab, Menlo Pk, CA 94025 USA. 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 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 030008 DI 10.1063/1.4965602 PG 4 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300013 ER PT S AU Yu, LL Esarey, E Schroeder, CB Vay, JL Benedetti, C Geddes, CGR Chen, M Leemans, WP AF Yu, L. -L. Esarey, E. Schroeder, C. B. Vay, J. -L. Benedetti, C. Geddes, C. G. R. Chen, M. Leemans, W. P. BE Hogan, MJ TI Ultra-low Emittance Electron Beams from Two-color LaserIonization Injection SO ADVANCED ACCELERATOR CONCEPTS, (AAC 2014) SE AIP Conference Proceedings LA English DT Proceedings Paper CT 16th Advanced Accelerator Concepts Workshop CY JUL 13-18, 2014 CL San Jose, CA SP U S Dept Energy, Off High Energy Phys, Bergoz Instrumentat, Coherent, Radiabeam Technologies, THORLABS, Continuum, Amplitude Technologies, U S Dept Energy, Imagine Opt, Spectra Phys, Northrop Grumman, LEO ID LASER; WAKEFIELD AB In this paper we discuss how we used two laser pulses of different colors to generate femtosecond, ultralow emittance (similar to 10(-2) mm mrad) electron beams in a laser-driven plasma-based accelerator. A long-wavelength pump pulse was used to excite a large wake without fully ionizing a high-Z gas. A short-wavelength injection pulse, with a small ponderomotive force and large peak electric field, ionizes a fraction of the remaining bound electrons into trapped wake orbits with a small quiver momentum. Two-dimensional (2D) Particle-In-Cell (PIC) simulations show that the transverse emittance of the injected beam can be an order of magnitude smaller than previously achieved in laser-plasma accelerators. C1 [Yu, L. -L.; Esarey, E.; Schroeder, C. B.; Vay, J. -L.; Benedetti, C.; Geddes, C. G. R.; Leemans, W. P.] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. [Yu, L. -L.; Chen, M.] Shanghai Jiao Tong Univ, Dept Phys & Astron, Minist Educ, Key Lab Laser Plasmas, Shanghai 200240, Peoples R China. RP Yu, LL (reprint author), Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA.; Yu, LL (reprint author), Shanghai Jiao Tong Univ, Dept Phys & Astron, Minist Educ, Key Lab Laser Plasmas, Shanghai 200240, Peoples R China. RI Chen, Min/A-9955-2010 OI Chen, Min/0000-0002-4290-9330 NR 14 TC 0 Z9 0 U1 1 U2 1 PU AMER INST PHYSICS PI MELVILLE PA 2 HUNTINGTON QUADRANGLE, STE 1NO1, MELVILLE, NY 11747-4501 USA SN 0094-243X BN 978-0-7354-1439-6 J9 AIP CONF PROC PY 2016 VL 1777 AR UNSP 040019 DI 10.1063/1.4965621 PG 5 WC Physics, Applied; Physics, Particles & Fields SC Physics GA BG5JH UT WOS:000389510300032 ER PT S AU Choi, HJ Mitchell, KB Garlie, T McNamara, J Hennessy, E Carson, J AF Choi, Hyeg Joo Mitchell, K. Blake Garlie, Todd McNamara, Jay Hennessy, Edward Carson, Jeremy BE Goonetilleke, R Karwowski, W TI Effects of Body Armor Fit on Marksmanship Performance SO ADVANCES IN PHYSICAL ERGONOMICS AND HUMAN FACTORS SE Advances in Intelligent Systems and Computing LA English DT Proceedings Paper CT International Conference on Physical Ergonomics and Human Factors CY JUL 27-31, 2016 CL FL DE Body armor; Fit; Anthropometry; Marksmanship performance; Weapon simulator; Personal protective equipment (PPE); Human factors; Military AB This study examines the effect of body armor fit on marksmanship performance. Specifically, (1) does wearing body armor affect marksmanship performance, and (2) does the fit of the armor affect marksmanship performance. Fifteen male Soldiers participated in a marksmanship performance task using a weapon simulator in four different body armor configurations (no armor, initial fit, increased and decreased size). Accuracy (closeness to target center), precision (shot group tightness), and speed (transition time) were measured. Accuracy and precision were not significantly different regardless of body armor fit. However, speed was degraded in the initial fit body armor size and the increased size configurations relative to the baseline and decreased size configurations. In other words, in the decreased size, Soldiers engaged targets as quickly as when not wearing body armor, indicating body armor fit may impede Soldier's ability to transition between targets, thereby impacting mission performance. C1 [Choi, Hyeg Joo; Mitchell, K. Blake; Garlie, Todd; McNamara, Jay; Hennessy, Edward; Carson, Jeremy] NSRDEC, Natick, MA 01760 USA. [Choi, Hyeg Joo] NSRDEC, ORISE, Natick, MA 01760 USA. RP Choi, HJ (reprint author), NSRDEC, Natick, MA 01760 USA. EM Hyegjoo.Choi.ctr@mail.mil NR 8 TC 0 Z9 0 U1 0 U2 0 PU SPRINGER INT PUBLISHING AG PI CHAM PA GEWERBESTRASSE 11, CHAM, CH-6330, SWITZERLAND SN 2194-5357 BN 978-3-319-41694-6; 978-3-319-41693-9 J9 ADV INTELL SYST PY 2016 VL 489 BP 341 EP 354 DI 10.1007/978-3-319-41694-6_35 PG 14 WC Engineering, Multidisciplinary; Ergonomics SC Engineering GA BG5PQ UT WOS:000389642400035 ER PT S AU Diwan, MV Galymov, V Qian, X Rubbia, A AF Diwan, M. V. Galymov, V. Qian, X. Rubbia, A. BE Holstein, BR TI Long-Baseline Neutrino Experiments SO ANNUAL REVIEW OF NUCLEAR AND PARTICLE SCIENCE, VOL 66 SE Annual Review of Nuclear and Particle Science LA English DT Review; Book Chapter DE neutrino properties; neutrino sources; neutrino oscillations; lepton flavor; CP violation; mass hierarchy ID FLAVOR-VIOLATION EXPERIMENTS; ATMOSPHERIC NEUTRINOS; MASS HIERARCHY; OSCILLATIONS; MATTER; FLUX; SPECTROSCOPY; DETECTORS; PROSPECTS; PHYSICS AB We review long-baseline neutrino experiments in which neutrinos are detected after traversing macroscopic distances. Over such distances neutrinos have been found to oscillate among flavor states. Experiments with solar, atmospheric, reactor, and accelerator neutrinos have resulted in a coherent picture of neutrino masses and mixing of the three known flavor states. We summarize the current best knowledge of neutrino parameters and phenomenology, with a focus on the evolution of the experimental technique. We proceed from the first evidence produced by astrophysical neutrino sources to the current open questions and the goals of future research. C1 [Diwan, M. V.; Qian, X.] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. [Galymov, V.] Inst Phys Nucl, F-69622 Villeurbanne, France. [Rubbia, A.] Swiss Fed Inst Technol, Inst Particle Phys, CH-8093 Zurich, Switzerland. RP Diwan, MV (reprint author), Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. OI Qian, Xin/0000-0002-7903-7935 NR 151 TC 0 Z9 0 U1 0 U2 0 PU ANNUAL REVIEWS PI PALO ALTO PA 4139 EL CAMINO WAY, PO BOX 10139, PALO ALTO, CA 94303-0897 USA SN 0163-8998 BN 978-0-8243-1566-5 J9 ANNU REV NUCL PART S JI Annu. Rev. Nucl. Part. Sci. PY 2016 VL 66 BP 47 EP 71 DI 10.1146/annurev-nucl-102014-021939 PG 25 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA BG5NY UT WOS:000389588400003 ER PT S AU Gelis, F Schenke, B AF Gelis, Francois Schenke, Bjorn BE Holstein, BR TI Initial-State Quantum Fluctuations in the Little Bang SO ANNUAL REVIEW OF NUCLEAR AND PARTICLE SCIENCE, VOL 66 SE Annual Review of Nuclear and Particle Science LA English DT Review; Book Chapter DE quantum chromodynamics; heavy-ion collisions; quark-gluon plasma; hydrodynamics; thermalization ID COLOR GLASS CONDENSATE; HEAVY-ION COLLISIONS; GLUON DISTRIBUTION-FUNCTIONS; HIGH-ENERGY SCATTERING; ANISOTROPIC HYDRODYNAMICS; RENORMALIZATION-GROUP; SMALL-X; NUCLEAR COLLISIONS; PB COLLISIONS; EVOLUTION AB We review recent developments in the ab initio theoretical description of the initial state in heavy-ion collisions. We emphasize the importance of fluctuations, both for the phenomenological description of experimental data from the Relativistic Heavy Ion Collider (RHIC) and the Large Hadron Collider (LHC) and for the theoretical understanding of the nonequilibrium early-time dynamics and thermalization of the medium. C1 [Gelis, Francois] Univ Paris Saclay, Ctr Natl Rech Sci, Inst Phys Theor, Commissariat Energie Atom & Energies Alternat, F-91191 Gif Sur Yvette, France. [Schenke, Bjorn] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA. RP Gelis, F (reprint author), Univ Paris Saclay, Ctr Natl Rech Sci, Inst Phys Theor, Commissariat Energie Atom & Energies Alternat, F-91191 Gif Sur Yvette, France. NR 142 TC 2 Z9 2 U1 1 U2 1 PU ANNUAL REVIEWS PI PALO ALTO PA 4139 EL CAMINO WAY, PO BOX 10139, PALO ALTO, CA 94303-0897 USA SN 0163-8998 BN 978-0-8243-1566-5 J9 ANNU REV NUCL PART S JI Annu. Rev. Nucl. Part. Sci. PY 2016 VL 66 BP 73 EP 94 DI 10.1146/annurev-nucl-102115-044651 PG 22 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA BG5NY UT WOS:000389588400004 ER PT S AU Hayes, AC Vogel, P AF Hayes, Anna C. Vogel, Petr BE Holstein, BR TI Reactor Neutrino Spectra SO ANNUAL REVIEW OF NUCLEAR AND PARTICLE SCIENCE, VOL 66 SE Annual Review of Nuclear and Particle Science LA English DT Review; Book Chapter DE reactor; antineutrino; uranium; plutonium; oscillations; anomaly ID NUCLEAR BETA-DECAY; FISSION-PRODUCTS; ELECTROMAGNETIC CORRECTIONS; ANTINEUTRINO SPECTRA; CROSS-SECTION; POWER-REACTOR; OSCILLATIONS; SEARCH; ENERGY; GALLEX AB We present a review of the antineutrino spectra emitted from reactors. Knowledge of these spectra and their associated uncertainties is crucial for neutrino oscillation studies. The spectra used to date have been determined either by converting measured electron spectra to antineutrino spectra or by summing over all of the thousands of transitions that make up the spectra, using modern databases as input. The uncertainties in the subdominant corrections to beta-decay plague both methods, and we provide estimates of these uncertainties. Improving on current knowledge of the antineutrino spectra from reactors will require new experiments. Such experiments would also address the so-called reactor neutrino anomaly and the possible origin of the shoulder observed in the antineutrino spectra measured in recent high-statistics reactor neutrino experiments. C1 [Hayes, Anna C.] Los Alamos Natl Lab, Theoret Div T2, Los Alamos, NM 87545 USA. [Vogel, Petr] CALTECH, Kellogg Radiat Lab, Pasadena, CA 91125 USA. RP Hayes, AC (reprint author), Los Alamos Natl Lab, Theoret Div T2, Los Alamos, NM 87545 USA. EM anna_hayes@lanl.gov; pvogel@caltech.edu NR 100 TC 0 Z9 0 U1 2 U2 2 PU ANNUAL REVIEWS PI PALO ALTO PA 4139 EL CAMINO WAY, PO BOX 10139, PALO ALTO, CA 94303-0897 USA SN 0163-8998 BN 978-0-8243-1566-5 J9 ANNU REV NUCL PART S JI Annu. Rev. Nucl. Part. Sci. PY 2016 VL 66 BP 219 EP 244 DI 10.1146/annurev-nucl-102115-044826 PG 26 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA BG5NY UT WOS:000389588400010 ER PT S AU Fallon, P Gade, A Lee, IY AF Fallon, Paul Gade, Alexandra Lee, I-Yang BE Holstein, BR TI GRETINA and Its Early Science SO ANNUAL REVIEW OF NUCLEAR AND PARTICLE SCIENCE, VOL 66 SE Annual Review of Nuclear and Particle Science LA English DT Review; Book Chapter DE nuclear structure; gamma-ray spectroscopy; rare isotopes; germanium detectors ID ELECTRIC-DIPOLE MOMENTS; RAY TRACKING DETECTORS; NEUTRON-STAR; LIFETIME MEASUREMENTS; RARE ISOTOPES; NUCLEI; SPECTROSCOPY; STATES; BEAMS; ARRAY AB gamma-Ray spectroscopy continues to be an important tool for the study of nuclei. Excitation energies can be measured directly and in model-independent ways, and thus are among the key observables that can guide our understanding of atomic nuclei. With the availability of short-lived rare-isotope beams, the development of position sensitivity of. gamma-ray detection systems has been crucial in combating the Doppler broadening encountered for the energies of gamma-rays emitted in flight, which are necessary to obtain good energy resolution while maintaining high efficiency. The advanced gamma-ray tracking array GRETINA began its science mission at the National Superconducting Cyclotron Laboratory ( NSCL), where rare-isotope beams are produced at velocities exceeding 30% of the speed of light. With selected examples from nuclear structure physics and nuclear astrophysics, we show the breadth and reach of the science program afforded by GRETINA and provide an outlook for what can be accomplished with the full 4 pi array GRETA at the Facility for Rare Isotope Beams (FRIB). C1 [Fallon, Paul; Lee, I-Yang] Lawrence Berkeley Natl Lab, Div Nucl Sci, Berkeley, CA 94720 USA. [Gade, Alexandra] Michigan State Univ, Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA. [Gade, Alexandra] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA. RP Fallon, P (reprint author), Lawrence Berkeley Natl Lab, Div Nucl Sci, Berkeley, CA 94720 USA. EM pfallon@lbl.gov; gade@nscl.msu.edu; iylee@lbl.gov NR 83 TC 1 Z9 1 U1 1 U2 1 PU ANNUAL REVIEWS PI PALO ALTO PA 4139 EL CAMINO WAY, PO BOX 10139, PALO ALTO, CA 94303-0897 USA SN 0163-8998 BN 978-0-8243-1566-5 J9 ANNU REV NUCL PART S JI Annu. Rev. Nucl. Part. Sci. PY 2016 VL 66 BP 321 EP 339 DI 10.1146/annurev-nucl-102115-044834 PG 19 WC Physics, Nuclear; Physics, Particles & Fields SC Physics GA BG5NY UT WOS:000389588400014 ER PT S AU Graw, F Perelson, AS AF Graw, Frederik Perelson, Alan S. BE Enquist, LW TI Modeling Viral Spread SO ANNUAL REVIEW OF VIROLOGY, VOL 3 SE Annual Review of Virology LA English DT Review; Book Chapter DE HIV; HCV; cell-to-cell infection; cell-free virus infection; mathematical modeling; agent-based models ID HEPATITIS-C VIRUS; HUMAN-IMMUNODEFICIENCY-VIRUS; TO-CELL TRANSMISSION; VIROLOGICAL SYNAPSE FORMATION; DYNAMICS IN-VIVO; ENTRY FACTOR; ANTIRETROVIRAL THERAPY; INTERFERON RESPONSE; HIV-INFECTION; HUMAN LIVER AB The way in which a viral infection spreads within a host is a complex process that is not well understood. Different viruses, such as human immunodeficiency virus type 1 and hepatitis C virus, have evolved different strategies, including direct cell-to-cell transmission and cell-free transmission, to spread within a host. To what extent these two modes of transmission are exploited in vivo is still unknown. Mathematical modeling has been an essential tool to get a better systematic and quantitative understanding of viral processes that are difficult to discern through strictly experimental approaches. In this review, we discuss recent attempts that combine experimental data and mathematical modeling in order to determine and quantify viral transmission modes. We also discuss the current challenges for a systems-level understanding of viral spread, and we highlight the promises and challenges that novel experimental techniques and data will bring to the field. C1 [Graw, Frederik] Heidelberg Univ, Ctr Modelling & Simulat Biosci, BioQuant Ctr, D-69120 Heidelberg, Germany. [Perelson, Alan S.] Los Alamos Natl Lab, Theoret Biol & Biophys, Los Alamos, NM 87545 USA. RP Perelson, AS (reprint author), Los Alamos Natl Lab, Theoret Biol & Biophys, Los Alamos, NM 87545 USA. EM asp@lanl.gov FU NIAID NIH HHS [R01 AI028433, R01 AI078881, R01 AI116868]; NIH HHS [R01 OD011095] NR 97 TC 0 Z9 0 U1 7 U2 7 PU ANNUAL REVIEWS PI PALO ALTO PA 4139 EL CAMINO WAY, PO BOX 10139, PALO ALTO, CA 94303-0897 USA SN 2327-056X BN 978-0-8243-3403-1 J9 ANNU REV VIROL PY 2016 VL 3 BP 555 EP 572 DI 10.1146/annurev-virology-110615-042249 PG 18 WC Virology SC Virology GA BG5NR UT WOS:000389586100026 PM 27618637 ER PT J AU Canini, L Guedj, J Chatterjee, A Lemenuel-Diot, A Smith, PF Perelson, AS AF Canini, Laetitia Guedj, Jeremie Chatterjee, Anushree Lemenuel-Diot, Annabelle Smith, Patrick F. Perelson, Alan S. TI Modelling the interaction between danoprevir and mericitabine in the treatment of chronic HCV infection SO ANTIVIRAL THERAPY LA English DT Article ID HEPATITIS-C VIRUS; POLYMERASE INHIBITOR MERICITABINE; VIROLOGICAL RESPONSE; VIRAL KINETICS; THERAPY; RIBAVIRIN; SOFOSBUVIR; ABT-450/R-OMBITASVIR; DACLATASVIR; COMBINATION AB Background: Modelling HCV RNA decline kinetics under therapy has proven useful for characterizing treatment effectiveness. Methods: Here we model HCV viral kinetics (VK) in 72 patients given a combination of danoprevir, a protease inhibitor, and mericitabine, a nucleoside polymerase inhibitor, for 14 days in the INFORM-1 trial. A biphasic VK model with time-varying danoprevir and mericitabine effectiveness and Bliss independence for characterizing the interaction between both drugs provided the best fit to the VK data. Results: The average final antiviral effectiveness of the drug combination varied between 0.998 for 100 mg three times daily of danoprevir and 500 mg twice daily of mericitabine and 0.9998 for 600 mg twice daily of danoprevir and 1,000 mg twice daily of mericitabine. Using the individual parameters estimated from the VK data collected over 2 weeks, we were not able to reproduce the low sustained virological response rates obtained in a more recent study where patients were treated with a combination of mericitabine and ritonavir-boosted danoprevir for 24 weeks. Conclusions: This suggests that drug-resistant viruses emerge after 2 weeks of treatment and that longer studies are necessary to provide accurate predictions of longer treatment outcomes. C1 [Canini, Laetitia; Chatterjee, Anushree; Perelson, Alan S.] Los Alamos Natl Lab, Theoret Biol & Biophys, Los Alamos, NM 87544 USA. [Canini, Laetitia] Univ Edinburgh, Ctr Immun Infect & Evolut, Edinburgh, Midlothian, Scotland. [Guedj, Jeremie] Univ Paris Diderot, IAME, UMR 1137, Sorbonne Paris Cite, F-75018 Paris, France. [Guedj, Jeremie] INSERM, IAME, UMR 1137, F-75018 Paris, France. [Chatterjee, Anushree] Los Alamos Natl Lab, Ctr Nonlinear Studies, Los Alamos, NM USA. [Chatterjee, Anushree] Univ Colorado, Dept Chem & Biol Engn, Boulder, CO 80309 USA. [Lemenuel-Diot, Annabelle] Roche, Pharma Dev Methodol & Innovat Dept, Basel, Switzerland. [Smith, Patrick F.] d3 Med, Montville, NJ USA. [Smith, Patrick F.] Univ Buffalo, Sch Pharm & Pharmaceut Sci, Buffalo, NY USA. RP Perelson, AS (reprint author), Los Alamos Natl Lab, Theoret Biol & Biophys, Los Alamos, NM 87544 USA. EM asp@lanl.gov RI Guedj, Jeremie/A-6842-2017 OI Guedj, Jeremie/0000-0002-5534-5482 FU US Department of Energy [DE-AC52-06NA25396]; NIH [AI028433, P20-GM103452, AI078881]; National Center for Research Resources and the Office of Research Infrastructure Programs (ORIP) [R01-OD011095]; Biotechnology and Biological Sciences Research Council (BBSRC) 1698 [BB/L001330/1]; Roche, Inc.; LANL LDRD program FX We thank France Mentre (INSERM, IAME, UMR 1137, F-75018, Paris, France) for helpful comments on an earlier version of the manuscript. This work was performed under the auspices of the US Department of Energy under contract DE-AC52-06NA25396, and supported by NIH grants AI028433, P20-GM103452, AI078881, the National Center for Research Resources and the Office of Research Infrastructure Programs (ORIP) through grant R01-OD011095 (ASP), the Biotechnology and Biological Sciences Research Council (BBSRC) 1698: BB/L001330/1 and Roche, Inc. We also acknowledge the LANL LDRD program for providing partial funding for AC. NR 30 TC 0 Z9 0 U1 1 U2 1 PU INT MEDICAL PRESS LTD PI LONDON PA 2-4 IDOL LANE, LONDON EC3R 5DD, ENGLAND SN 1359-6535 J9 ANTIVIR THER JI Antivir. Ther. PY 2016 VL 21 IS 4 BP 297 EP 306 DI 10.3851/IMP3006 PG 10 WC Infectious Diseases; Pharmacology & Pharmacy; Virology SC Infectious Diseases; Pharmacology & Pharmacy; Virology GA EE6TY UT WOS:000389746700003 PM 26555159 ER PT S AU Foster, I AF Foster, Ian BE Kordon, F Moldt, D TI Reasoning About Discovery Clouds SO APPLICATION AND THEORY OF PETRI NETS AND CONCURRENCY, PETRI NETS 2016 SE Lecture Notes in Computer Science LA English DT Proceedings Paper CT 37th International Conference on Application and Theory of Petri Nets and Concurrency (Petri Nets) CY JUN 19-24, 2016 CL Torun, POLAND SP Nicolaus Copernicus Univ, Fac Math & Comp Sci ID AS-A-SERVICE; SCIENCE; TECHNOLOGY; ANNOTATION; ONLINE; SEED; RAST AB A discovery cloud is a set of automated, cloud-hosted services to which individuals may outsource their routine and not-so-routine research tasks: finding relevant data, inferring links between data, running computational experiments, inferring new knowledge claims, evaluating the credibility of knowledge claims produced by others, designing experiments, and so on. If developed successfully, a discovery cloud can accelerate and democratize access to data and knowledge tools and the collaborative construction of new knowledge. Such systems are also fascinating to consider from a reasoning perspective because they integrate great complexity at multiple levels: the underlying cloud-based hardware and software, for which issues of reliability and responsiveness may be paramount; the knowledge bases and inference engines that sit on that cloud substrate, for which issues of correctness may be less well defined; and the human communities that form around the discovery clouds, and that arguably form as much as part of the cloud as the hardware, software, and data. I raise questions here about what it might mean to reason about such systems. I do not provide any answers. C1 [Foster, Ian] Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA. [Foster, Ian] Univ Chicago, Chicago, IL 60637 USA. RP Foster, I (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA.; Foster, I (reprint author), Univ Chicago, Chicago, IL 60637 USA. EM foster@uchicago.edu NR 35 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 978-3-319-39085-7; 978-3-319-39086-4 J9 LECT NOTES COMPUT SC PY 2016 VL 9698 BP 3 EP 10 DI 10.1007/978-3-319-39086-4_1 PG 8 WC Computer Science, Software Engineering; Computer Science, Theory & Methods SC Computer Science GA BG5WS UT WOS:000389799200001 ER PT J AU Chen, YW Drury, JL Moussi, J Taylor-Pashow, KL Hobbs, DT Wataha, JC AF Chen, Yen-Wei Drury, Jeanie L. Moussi, Joelle Taylor-Pashow, KathrynM. L. Hobbs, David T. Wataha, John C. TI Cytotoxicity of Titanate-Calcium Complexes to MC3T3 Osteoblast-Like Cells SO BIOMED RESEARCH INTERNATIONAL LA English DT Article ID MINERAL TRIOXIDE AGGREGATE; TITANIUM IMPLANTS; BONE; NANOPARTICLES; ADSORPTION; PARTICLES; GOLD AB Monosodium titanates (MST) are a relatively novel form of particulate titanium dioxide that have been proposed for biological use as metal sorbents or delivery agents, most recently calcium (II). In these roles, the toxicity of the titanate or its metal complex is crucial to its biological utility. The aim of this study was to determine the cytotoxicity of MST and MST-calcium complexes with MC3T3 osteoblast-like cells; MST-Ca(II) complexes could be useful to promote bone formation in various hard tissue applications. MC3T3 cells were exposed to nativeMST or MST-Ca(II) complexes for 24-72 h. A CellTiter-Blue (R) assay was employed to assess the metabolic activity of the cells. The results showed thatMST andMST-Ca(II) suppressedMC3T3 metabolic activity significantly in a dose-, time-, and cell-density-dependent fashion. MST-Ca(II) suppressed MC3T3 metabolism in a statistically identical manner as native MST at all concentrations. We concluded that MST and MST-Ca(II) are significantly cytotoxic to MC3T3 cells through a mechanism yet unknown; this is a potential problem to the biological utility of these complexes. C1 [Chen, Yen-Wei; Drury, Jeanie L.; Moussi, Joelle; Wataha, John C.] Univ Washington, Sch Dent, Dept Restorat Dent, Seattle, WA 98195 USA. [Taylor-Pashow, KathrynM. L.; Hobbs, David T.] Savannah River Natl Lab, Aiken, SC 29808 USA. RP Chen, YW (reprint author), Univ Washington, Sch Dent, Dept Restorat Dent, Seattle, WA 98195 USA. EM ywchen@uw.edu FU Department of Restorative Dentistry at the University of Washington; United States Department of Energy [AC71713O] FX The authors thank the following for support of this research: Department of Restorative Dentistry at the University of Washington (Spencer fund to John C. Wataha) and the United States Department of Energy (Grant no. AC71713O to David T. Hobbs with subcontract to John C. Wataha). NR 29 TC 0 Z9 0 U1 0 U2 0 PU HINDAWI PUBLISHING CORP PI NEW YORK PA 315 MADISON AVE 3RD FLR, STE 3070, NEW YORK, NY 10017 USA SN 2314-6133 EI 2314-6141 J9 BIOMED RES INT JI Biomed Res. Int. PY 2016 AR 7895182 DI 10.1155/2016/7895182 PG 7 WC Biotechnology & Applied Microbiology; Medicine, Research & Experimental SC Biotechnology & Applied Microbiology; Research & Experimental Medicine GA EE9KW UT WOS:000389946300001 ER PT J AU Liebig, MA Franzluebbers, AJ Alvarez, C Chiesa, TD Lewczuk, N Pineiro, G Posse, G Yahdjian, L Grace, P Cabral, OMR Martin-Neto, L Rodrigues, RDAR Amiro, B Angers, D Hao, X Oelbermann, M Tenuta, M Munkholm, LJ Regina, K Cellier, P Ehrhardt, F Richard, G Dechow, R Agus, F Widiarta, N Spink, J Berti, A Grignani, C Mazzoncini, M Orsini, R Roggero, PP Seddaiu, G Tei, F Ventrella, D Vitali, G Kishimoto-Mo, A Shirato, Y Sudo, S Shin, J Schipper, L Save, R Leifeld, J Spadavecchia, L Yeluripati, J Del Grosso, S Rice, C Sawchik, J AF Liebig, M. A. Franzluebbers, A. J. Alvarez, C. Chiesa, T. D. Lewczuk, N. Pineiro, G. Posse, G. Yahdjian, L. Grace, P. Cabral, O. Machado Rodrigues Martin-Neto, L. Rodrigues, R. de Aragao Ribeiro Amiro, B. Angers, D. Hao, X. Oelbermann, M. Tenuta, M. Munkholm, L. J. Regina, K. Cellier, P. Ehrhardt, F. Richard, G. Dechow, R. Agus, F. Widiarta, N. Spink, J. Berti, A. Grignani, C. Mazzoncini, M. Orsini, R. Roggero, P. P. Seddaiu, G. Tei, F. Ventrella, D. Vitali, G. Kishimoto-Mo, A. Shirato, Y. Sudo, S. Shin, J. Schipper, L. Save, R. Leifeld, J. Spadavecchia, L. Yeluripati, J. Del Grosso, S. Rice, C. Sawchik, J. TI MAGGnet: An international network to foster mitigation of agricultural greenhouse gases SO CARBON MANAGEMENT LA English DT Article DE Carbon sequestration; Global Research Alliance; Managing Agricultural Greenhouse Gases Network; Nitrous oxide ID GLOBAL RESEARCH ALLIANCE AB Research networks provide a framework for review, synthesis and systematic testing of theories by multiple scientists across international borders critical for addressing global-scale issues. In 2012, a GHG research network referred to as MAGGnet (Managing Agricultural Greenhouse Gases Network) was established within the Croplands Research Group of the Global Research Alliance on Agricultural Greenhouse Gases (GRA). With involvement from 46 alliance member countries, MAGGnet seeks to provide a platform for the inventory and analysis of agricultural GHG mitigation research throughout the world. To date, metadata from 315 experimental studies in 20 countries have been compiled using a standardized spreadsheet. Most studies were completed (74%) and conducted within a 1-3-year duration (68%). Soil carbon and nitrous oxide emissions were measured in over 80% of the studies. Among plant variables, grain yield was assessed across studies most frequently (56%), followed by stover (35%) and root (9%) biomass. MAGGnet has contributed to modeling efforts and has spurred other research groups in the GRA to collect experimental site metadata using an adapted spreadsheet. With continued growth and investment, MAGGnet will leverage limited-resource investments by any one country to produce an inclusive, globally shared meta-database focused on the science of GHG mitigation. C1 [Liebig, M. A.] USDA ARS, POB 459, Mandan, ND 58554 USA. [Franzluebbers, A. J.] USDA ARS, NCSU Campus Box 7620, Raleigh, NC USA. [Alvarez, C.] Natl Inst Agr Technol, Cordoba, Argentina. [Chiesa, T. D.; Yahdjian, L.] Univ Buenos Aires, CONICET, Fac Agron, IFEVA, San Martin 4453, Buenos Aires, DF, Argentina. [Lewczuk, N.; Posse, G.] Natl Inst Agr Technol, Buenos Aires, DF, Argentina. [Pineiro, G.] Univ Buenos Aires, Fac Agron, IFEVA, CONICET, San Martin 4453, Bienos Aires, Argentina. [Grace, P.] Queensland Univ Technol, Brisbane, Qld, Australia. [Cabral, O. Machado Rodrigues] Embrapa Environm, RODOVIA SP340 KM 127,5, Sao Paulo, Brazil. [Martin-Neto, L.] Embrapa Headquarters, Parque Estacao Biol PqEB S-N, Brasilia, DF, Brazil. [Rodrigues, R. de Aragao Ribeiro] Embrapa Soils, Rua Jardim Bot 1024, Rio De Janeiro, Brazil. [Amiro, B.] Univ Manitoba, Winnipeg, MB, Canada. [Angers, D.] Agr & Agri Food Canada, Quebec City, PQ, Canada. [Hao, X.] Agr & Agri Food Canada, Lethbridge, AB, Canada. [Oelbermann, M.] Univ Waterloo, Waterloo, ON, Canada. [Tenuta, M.] Univ Manitoba, Dept Soil Sci, Winnipeg, MB, Canada. [Munkholm, L. J.] Aarhus Univ, Dept Agroecol, Blichers Alle 20,Postboks 50, DK-8830 Tjele, Denmark. [Regina, K.] Nat Resources Inst Finland, Tietotie 4, FI-31600 Jokioinen, Finland. [Cellier, P.] French Natl Inst Agr Res INRA, Ecosys UMR1402, F-78850 Thiverval Grignon, France. [Ehrhardt, F.] French Natl Inst Agr Res INRA, Paris, France. [Richard, G.] French Natl Inst Agr Res INRA, Orleans, France. [Dechow, R.] Thunen Inst Climate Smart Agr, Braunschweig, Germany. [Agus, F.] Indonesian Soil Res Inst, Jl Tentara Pelajar 12, Bogor 16114, Indonesia. [Widiarta, N.] Indonesian Ctr Food Crop Res & Dev, Jalan Merdeka 147, Bogor 16111, Indonesia. [Spink, J.] TEAGASC, Oak Pk Crops Res Ctr, Oak Pk, Carlow, Ireland. [Berti, A.] Univ Padua, Dipartimento Agron Anim Alimenti Risorse Nat & Am, Padua, Italy. [Grignani, C.] Univ Turin, Dept Agr Forest & Food Sci, Largo Braccini 2, I-10095 Grugliasco, TO, Italy. [Mazzoncini, M.] Univ Pisa, Dept Agron & Agroecosyst Management DAGA, Via S Michele degli Scalzi 2, I-56100 Pisa, Italy. [Orsini, R.] Univ Politecn Marche, Dipartimento Sci Agr Alimentari & Ambientali, Via Brecce Bianche, I-60131 Ancona, Italy. [Roggero, P. P.; Seddaiu, G.] Univ Sassari, Nucleo Ric Desertificaz, Viale Italia 39, I-07100 Sassari, Italy. [Roggero, P. P.; Seddaiu, G.] Univ Sassari, Dipartimento Agr, Viale Italia 39, I-07100 Sassari, Italy. [Tei, F.] Univ Perugia, Dept Agr Food & Environm Sci, Borgo 20 Giugno,74, I-06121 Perugia, Italy. [Ventrella, D.] Res Unit Cropping Syst Dry Environm CRA SCA, Via Celso Ulpiani 5, I-70125 Bari, Italy. [Vitali, G.] Univ Bologna, Alma Mater Studiorum, Dipartimento Sci Agr, I-40126 Bologna, Italy. [Kishimoto-Mo, A.; Shirato, Y.; Sudo, S.] Natl Inst Agroenvironm Sci, 3-1-3 Kannondai, Tsukuba, Ibaraki 3058604, Japan. [Shin, J.] Natl Acad Agr Sci, Seoul, South Korea. [Schipper, L.] Univ Waikato, Res Inst, Private Bag 3105, Hamilton 3240, New Zealand. [Save, R.] Inst Agrifood Res & Technol IRTA, Barcelona, Catalonia, Spain. [Leifeld, J.] Agroscope, Reckenholzstr 191, CH-8046 Zurich, Switzerland. [Spadavecchia, L.] Dept Environm Food & Rural Affairs, Area 1B Nobel House,17 Smith Sq, London SW1P 3JR, England. [Yeluripati, J.] James Hutton Inst, Aberdeen AB15 8QH, Scotland. [Del Grosso, S.] USDA ARS, 2150 Ctr Ave,Bldg D,Suite 100, Ft Collins, CO 80522 USA. [Rice, C.] Kansas State Univ, Throckmorton Ctr 2701, Manhattan, KS 66506 USA. [Sawchik, J.] Natl Inst Agr Res Uruguay, Montevideo, Uruguay. RP Liebig, MA (reprint author), USDA ARS, POB 459, Mandan, ND 58554 USA. EM mark.liebig@ars.usda.gov RI Leifeld, Jens/A-3298-2014; OI Leifeld, Jens/0000-0002-7245-9852; munkholm, lars/0000-0002-4506-9488 FU U.S. Department of Agriculture National Institute of Food and Agriculture [2014-35615-21934]; Swiss National Science Foundation [NRP 68, 40FA40_154244/1]; Italian Ministry of Agricultural Food and Forestry Policies [DM 25659/7303/2013] FX U.S. Department of Agriculture National Institute of Food and Agriculture (2014-35615-21934), Swiss National Science Foundation (NRP 68, No. 40FA40_154244/1), and Italian Ministry of Agricultural Food and Forestry Policies (DM 25659/7303/2013). NR 11 TC 0 Z9 0 U1 1 U2 1 PU TAYLOR & FRANCIS LTD PI ABINGDON PA 2-4 PARK SQUARE, MILTON PARK, ABINGDON OR14 4RN, OXON, ENGLAND SN 1758-3004 EI 1758-3012 J9 CARBON MANAG JI Carbon Manag. PY 2016 VL 7 IS 3-4 BP 243 EP 248 DI 10.1080/17583004.2016.1180586 PG 6 WC Environmental Sciences; Environmental Studies SC Environmental Sciences & Ecology GA ED6IW UT WOS:000388960300010 ER PT S AU Salgado, R Lee, E Shevchenko, EV Balandin, AA AF Salgado, Ruben Lee, Eungiee Shevchenko, Elena V. Balandin, Alexander A. BE Razeghi, M Ghazinejad, M Bayram, C Yu, JS TI Carbon Nanotube - Nanodiamond Li-Ion Battery Cathodes with Increased Thermal Conductivity SO CARBON NANOTUBES, GRAPHENE, AND EMERGING 2D MATERIALS FOR ELECTRONIC AND PHOTONIC DEVICES IX SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Carbon Nanotubes, Graphene, and Emerging 2D Materials for Electronic and Photonic Devices IX CY AUG 28-31, 2016 CL San Diego, CA SP SPIE DE Lithium ion electrodes; carbon nanotubes; nanodiamonds; thermal conductivity; thermal management ID GRAPHENE; FILMS AB Prevention of excess heat accumulation within the Li-ion battery cells is a critical design consideration for electronic and photonic device applications. We report the results of our investigation of the thermal conductivity of various Li-ion cathodes with incorporated carbon nanotubes and nanodiamonds in different layered structures. The cathodes were synthesized using the filtration method, which can be utilized for synthesis of commercial electrode-active materials. The thermal measurements were conducted using two transient techniques - the "hot disk" and "laser flash" - which allowed us to determine separately the in-plane and cross-plane thermal conductivities of the samples. It has been established that the cathode with the carbon nanotubes-LiCo2 and carbon nanotube layered structure possesses the highest in-plane thermal conductivity of above similar to 200 W/mK at room temperature. The cathode containing nanodiamonds on carbon nanotubes structure revealed one of the highest cross-plane thermal conductivity values. The measured in-plane thermal conductivity is up to two orders-of-magnitude greater than that in conventional cathodes based on amorphous carbon. The obtained results demonstrate a potential of carbon nanotube incorporation in cathode materials for the effective thermal management of Li-ion and other high-powered density batteries. C1 [Salgado, Ruben; Balandin, Alexander A.] Univ Calif Riverside, Dept Elect & Comp Engn, NDL, Riverside, CA 92521 USA. [Salgado, Ruben; Balandin, Alexander A.] Univ Calif Riverside, Phonon Optimized Engn Mat POEM Ctr, Riverside, CA 92521 USA. [Salgado, Ruben; Balandin, Alexander A.] Univ Calif Riverside, Mat Sci & Engn Program, Riverside, CA 92521 USA. [Lee, Eungiee; Shevchenko, Elena V.] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA. RP Salgado, R (reprint author), Univ Calif Riverside, Dept Elect & Comp Engn, NDL, Riverside, CA 92521 USA. NR 18 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 978-1-5106-0255-7; 978-1-5106-0255-7 J9 PROC SPIE PY 2016 VL 9932 AR UNSP 993204 DI 10.1117/12.2238345 PG 7 WC Engineering, Electrical & Electronic; Materials Science, Multidisciplinary; Optics SC Engineering; Materials Science; Optics GA BG5QI UT WOS:000389673700001 ER PT J AU Buonsanti, R AF Buonsanti, Raffaella TI Colloidal Chemistry to Advance Studies in Artificial Photosynthesis SO CHIMIA LA English DT Article DE CO2 reduction; Colloidal synthesis; Device assembly; Nanocrystals; Water splitting ID ELECTROCHEMICAL REDUCTION; CARBON-DIOXIDE; HYDROGEN-PRODUCTION; OXIDE NANOCRYSTALS; METAL CATALYSTS; CO2 REDUCTION; NANOPARTICLES; MECHANISM; PHOTOCATALYSIS; NANOSTRUCTURES AB This article presents an overview of our research in the field of colloidal nanocrystal synthesis and their implementation into water splitting and CO2 reduction electrochemical cells. We discuss our approaches to tailormade novel material platforms to advance our knowledge in energy storage in chemical bonds, namely artificial photosynthesis. Herein, we focus on complex metal oxides as light absorbers to drive water splitting, nanocrystal hybrids and metals as electrocatalysts for carbon dioxide conversion. Our approach to solve the synthetic challenges so to achieve very precise control on size, shape and composition of such materials is highlighted. C1 [Buonsanti, Raffaella] Ecole Polytech Fed Lausanne, Inst Chem Sci & Engn ISIC, Lausanne, Switzerland. [Buonsanti, Raffaella] LBNL, Joint Ctr Artificial Photosynth, Dept Mat Sci, Berkeley, CA USA. RP Buonsanti, R (reprint author), EPFL Valais Wallis, EPFL SB ISCI LNCE, Rue Ind 17,Case Postale 444, CH-1951 Sion, Switzerland. EM raffaella.buonsanti@epfl.ch FU Joint Center for Artificial Photosynthesis, a U.S. DOE Energy Hub [DE-SC0004993]; Laboratory Directed Research and Development (LDRD) from Berkeley Lab [DE-AC02-05CH11231]; EPFL; Swiss SNF (AP Energy Grant) [PYAPP2_166897/1]; European Union (FP7 ERC Starting Grant 'HY-CAT'); Swiss National Center of Research (NCCR) Marvel FX Part of the work outlined above was supported by the Joint Center for Artificial Photosynthesis, a U.S. DOE Energy Hub (Award Number DE-SC0004993), by Laboratory Directed Research and Development (LDRD) funding from Berkeley Lab (Contract No. DE-AC02-05CH11231) and by the start-up funding from our host institution (EPFL). We thank the Swiss SNF (AP Energy Grant, project number PYAPP2_166897/1), the European Union (FP7 ERC Starting Grant 'HY-CAT' - just awarded), our industrial partner Gaznat and the Swiss National Center of Research (NCCR) Marvel which will all support our research in the upcoming years. Finally, I would like to acknowledge my former and present mentors, all the great colleagues I have met in Berkeley and now here in Switzerland and the wonderful group of dedicated students and postdocs I have the pleasure to work with. NR 46 TC 1 Z9 1 U1 6 U2 6 PU SWISS CHEMICAL SOC PI BERN PA SCHWARZTORSTRASSE 9, CH-3007 BERN, SWITZERLAND SN 0009-4293 J9 CHIMIA JI Chimia PY 2016 VL 70 IS 11 BP 780 EP 786 DI 10.2533/chimia.2016.780 PG 7 WC Chemistry, Multidisciplinary SC Chemistry GA EE8IX UT WOS:000389870000005 ER PT J AU Bremer, PT Gruber, A Bennett, JC Gyulassy, A Kolla, H Chen, JH Grout, RW AF Bremer, Peer-Timo Gruber, Andrea Bennett, Janine C. Gyulassy, Attila Kolla, Hemanth Chen, Jacqueline H. Grout, Ray W. TI IDENTIFYING TURBULENT STRUCTURES THROUGH TOPOLOGICAL SEGMENTATION SO COMMUNICATIONS IN APPLIED MATHEMATICS AND COMPUTATIONAL SCIENCE LA English DT Article DE segmentation; vortex identification; topology; turbulence ID DIRECT NUMERICAL-SIMULATION; VORTEX; JET AB A new method of extracting vortical structures from a turbulent flow is proposed whereby topological segmentation of an indicator function scalar field is used to identify the regions of influence of the individual vortices. This addresses a long-standing challenge in vector field topological analysis: indicator functions commonly used produce a scalar field based on the local velocity vector field; reconstructing regions of influence for a particular structure requires selecting a threshold to define vortex extent. In practice, the same threshold is rarely meaningful throughout a given flow. By also considering the topology of the indicator field function, the characteristics of vortex strength and extent can be separated and the ambiguity in the choice of the threshold reduced. The proposed approach is able to identify several types of vortices observed in a jet in cross-flow configuration simultaneously where no single threshold value for a selection of common indicator functions appears able to identify all of these vortex types. C1 [Bremer, Peer-Timo] Lawrence Livermore Natl Lab, Ctr Appl Sci Comp, 7000 East Ave,L-422, Livermore, CA 94551 USA. [Gruber, Andrea] SINTEF Energy Res, K Heiesvei 1A, N-7465 Trondheim, Norway. [Bennett, Janine C.; Kolla, Hemanth] Sandia Natl Labs, 7011 East Ave, Livermore, CA 94551 USA. [Gyulassy, Attila] Univ Utah, Salt Lake City, UT 84112 USA. [Chen, Jacqueline H.] Sandia Natl Labs, Reacting Flows, 7011 East Ave, Livermore, CA 94551 USA. [Grout, Ray W.] Natl Renewable Energy Lab, Computat Sci Ctr, 15013 Denver West Pkwy, Golden, CO 80401 USA. RP Bremer, PT (reprint author), Lawrence Livermore Natl Lab, Ctr Appl Sci Comp, 7000 East Ave,L-422, Livermore, CA 94551 USA. EM bremer5@llnl.gov; Andrea.Gruber@sintef.no; jcbenne@sandia.gov; aggyulassy@ucdavis.edu; hnkolla@sandia.gov; jhchen@sandia.gov; ray.grout@nrel.gov FU U.S. Department of Energy's National Nuclear Security Administration [DE-AC04-94AL85000]; Office of Science of the U.S. Department of Energy [DE-AC05-00OR22725]; U.S. Department of Energy's Office of Science and Office of Advanced Scientific Computing Research.; U.S. Department of Energy [DE-AC36-08-GO28308]; National Renewable Energy Laboratory FX Sandia National Laboratories is a multiprogram laboratory managed and operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, for the U.S. Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000. This research used resources of the Oak Ridge Leadership Computing Facility at the Oak Ridge National Laboratory, which is supported by the Office of Science of the U.S. Department of Energy under contract no. DE-AC05-00OR22725. This material is based upon work supported by the U.S. Department of Energy's Office of Science and Office of Advanced Scientific Computing Research. This work was supported by the U.S. Department of Energy under Contract No. DE-AC36-08-GO28308 with the National Renewable Energy Laboratory. NR 19 TC 0 Z9 0 U1 0 U2 0 PU MATHEMATICAL SCIENCE PUBL PI BERKELEY PA UNIV CALIFORNIA, DEPT MATHEMATICS, BERKELEY, CA 94720-3840 USA SN 1559-3940 EI 2157-5452 J9 COMM APP MATH COM SC JI Commun. Appl. Math. Comput. Sci. PY 2016 VL 11 IS 1 BP 37 EP 53 DI 10.2140/camcos.2016.11.37 PG 17 WC Mathematics, Applied; Physics, Mathematical SC Mathematics; Physics GA EE6XJ UT WOS:000389757200002 ER PT S AU Cenci, R Bedeschi, F Marino, P Morello, MJ Ninci, D Piucci, A Punzi, G Ristori, L Spinella, F Stracka, S Tonelli, D Walsh, J AF Cenci, Riccardo Bedeschi, Franco Marino, Pietro Morello, Michael J. Ninci, Daniele Piucci, Alessio Punzi, Giovanni Ristori, Luciano Spinella, Franco Stracka, Simone Tonelli, Diego Walsh, John BE Fruhwirth, R Brondolin, E Kolbinger, B Waltenberger, W TI First Results of an "Artificial Retina" Processor Prototype SO CONNECTING THE DOTS 2016 SE EPJ Web of Conferences LA English DT Proceedings Paper CT Workshop on Connecting the Dots CY FEB 22-24, 2016 CL Vienna, AUSTRIA AB We report on the performance of a specialized processor capable of reconstructing charged particle tracks in a realistic LHC silicon tracker detector, at the same speed of the readout and with sub-microsecond latency. The processor is based on an innovative pattern-recognition algorithm, called "artificial retina algorithm", inspired from the vision system of mammals. A prototype of the processor has been designed, simulated, and implemented on Tel62 boards equipped with high-bandwidth Altera Stratix III FPGA devices. The prototype is the first step towards a real-time track reconstruction device aimed at processing complex events of high-luminosity LHC experiments at 40 MHz crossing rate. C1 [Cenci, Riccardo; Marino, Pietro; Morello, Michael J.; Ninci, Daniele; Piucci, Alessio; Punzi, Giovanni; Spinella, Franco; Stracka, Simone; Walsh, John] Ist Nazl Fis Nucl, Sez Pisa, Pisa, Italy. [Ninci, Daniele; Piucci, Alessio; Punzi, Giovanni; Stracka, Simone] Univ Pisa, I-56100 Pisa, Italy. [Cenci, Riccardo; Bedeschi, Franco; Marino, Pietro; Morello, Michael J.] Scuola Normale Super Pisa, Pisa, Italy. [Ristori, Luciano] Fermilab Natl Accelerator Lab, POB 500, Batavia, IL 60510 USA. [Tonelli, Diego] CERN, Geneva, Switzerland. RP Cenci, R (reprint author), Ist Nazl Fis Nucl, Sez Pisa, Pisa, Italy.; Cenci, R (reprint author), Scuola Normale Super Pisa, Pisa, Italy. EM riccardo.cenci@pi.infn.it RI Stracka, Simone/M-3931-2015 OI Stracka, Simone/0000-0003-0013-4714 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 J9 EPJ WEB CONF PY 2016 VL 127 AR UNSP 00005 DI 10.1051/epjconf/201612700005 PG 10 WC Computer Science, Hardware & Architecture; Physics, Applied SC Computer Science; Physics GA BG5TC UT WOS:000389742400004 ER PT J AU Kou, F Yang, SL Qian, HJ Zhang, LH Beavers, CM Teat, SJ Tian, GX AF Kou, Fei Yang, Suliang Qian, Hongjuan Zhang, Lihua Beavers, Christine M. Teat, Simon J. Tian, Guoxin TI A fluorescence study on the complexation of Sm(III), Eu(III) and Tb(III) with tetraalkyldiglycolamides (TRDGA) in aqueous solution, in solid state, and in solvent extraction SO DALTON TRANSACTIONS LA English DT Article ID N,N,N',N'-TETRAOCTYL DIGLYCOLAMIDE; ACTINIDE SEPARATIONS; LANTHANIDE NITRATES; STABILITY-CONSTANTS; HYDRATION NUMBER; TODGA; LUMINESCENCE; WATER; IONS; ELEMENTS AB Tetraalkyldiglycolamide (TRDGA) ligands have potential utilization for the separation of actinide and lanthanide ions in the nuclear industry as chelates in aqueous solution if water-soluble or as extractants in organic solvents if water-insoluble. Here, a spectral titration method is extensively applied to investigating the complexation of fluorescent Sm(III), Eu(III), and Tb(III) with TRDGA ligands in aqueous solutions and a solvent extraction system. In aqueous solutions using N, N, N', N'-tetramethyldiglycolamide (TMDGA, L-I) as chelate, three successive complex species of Ln(III), including [LnL(I)](3+), [LnL(2)(I)](3+), and [LnL(3)(I)](3+), are identified for each Ln(III) (Ln = Sm, Eu, and Tb), and their stability constants are determined with fluorescence spectral titration method at 25 degrees C in 1 M NaNO3. The coordination mode in [LnLI 3] 3+ is illustrated by single-crystal structures of the solid compounds LnL(3)(I) (ClO4)(3) (Ln = Sm, Eu, Tb, and L-I = TMDGA) grown from aqueous solutions by slow evaporation. The crystal structures show that in the complexes Ln(III) ions are coordinated by nine oxygen atoms from three tridentate L-I ligands in a distorted tricapped trigonal prism geometry. To provide parallels to solvent extraction chemistry, the extracted Ln(III) complexes with N, N'-dimethyl-N,N'-dioctyldiglycolamide (DMDODGA, L-II, a lipophilic analogue of TMDGA) are prepared, and the fluorescence spectra are collected as well for comparison. The fluorescence spectra of the extracted Ln(III) complexes with LII in an organic phase of 40-60% (v/v) n-octanol-kerosene are nearly identical to the corresponding deconvoluted spectra of [LnL(3)(I)](3+) in aqueous solution. The similarity in fluorescence spectra suggests that Ln(III) ion in the extracted complexes is also coordinated by three tridentate LII ligands and that the nitrate anions acting just as counterions do not directly bond to Ln(III) in the organic phase of solvent extraction. C1 [Kou, Fei; Yang, Suliang; Qian, Hongjuan; Zhang, Lihua; Tian, Guoxin] China Inst Atom Chem, Dept Radiochem, POB 275-126, Beijing 102413, Peoples R China. [Beavers, Christine M.; Teat, Simon J.] Lawrence Berkeley Natl Lab, Adv Light Source, 1 Cyclotron Rd, Berkeley, CA 94720 USA. [Tian, Guoxin] Harbin Engn Univ, Nucl Chem Engn Dept, 145 Nantong St, Harbin 150001, Heilongjiang, Peoples R China. RP Yang, SL; Tian, GX (reprint author), China Inst Atom Chem, Dept Radiochem, POB 275-126, Beijing 102413, Peoples R China.; Teat, SJ (reprint author), Lawrence Berkeley Natl Lab, Adv Light Source, 1 Cyclotron Rd, Berkeley, CA 94720 USA.; Tian, GX (reprint author), Harbin Engn Univ, Nucl Chem Engn Dept, 145 Nantong St, Harbin 150001, Heilongjiang, Peoples R China. EM ysl79@hotmail.com; sjteat@lbl.gov; tianguoxin@hrbeu.edu.cn FU National Natural Science Foundation of China [91426302]; Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy [DE-AC02-05CH11231] FX This work was supported by the National Natural Science Foundation of China (91426302). The Advanced Light Source is supported by the Director, Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. NR 59 TC 1 Z9 1 U1 3 U2 3 PU ROYAL SOC CHEMISTRY PI CAMBRIDGE PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND SN 1477-9226 EI 1477-9234 J9 DALTON T JI Dalton Trans. PY 2016 VL 45 IS 46 BP 18484 EP 18493 DI 10.1039/c6dt02930b PG 10 WC Chemistry, Inorganic & Nuclear SC Chemistry GA EC8CX UT WOS:000388369000012 PM 27603554 ER PT J AU Armstrong, KC Hohloch, S Lohrey, TD Zarkesh, RA Arnold, J Anstey, MR AF Armstrong, Keith C. Hohloch, Stephan Lohrey, Trevor D. Zarkesh, Ryan A. Arnold, John Anstey, Mitchell R. TI Control of clustering behavior in anionic cerium(III) corrole complexes: from oligomers to monomers SO DALTON TRANSACTIONS LA English DT Article ID DOUBLE-DECKER COMPLEXES; SANDWICH-TYPE COMPLEXES; TETRAPYRROLE LIGANDS; METAL-COMPLEXES; TRANSITION-METAL; SPECTROSCOPIC CHARACTERIZATION; OCTAETHYLPORPHYRINATO LIGANDS; MIXED 2,3-NAPHTHALOCYANINATO; STRUCTURAL-CHARACTERIZATION; NEODYMIUM(III) COMPLEXES AB The first synthesis of anion capped cerium corrole complexes is reported. Unusual clustering of the lanthanide corrole units has been found and the degree of aggregation can be controlled by the choice of the capping ligand. A polymeric structure 1a, with the general formula [Cor-Ce(THF)-Cp-Na](n) (Cor = 5,15-bis(2,4,6-trimethylphenyl)-10-(4 methoxyphenyl)-corrole, THF = tetrahydrofuran), is formed using sodium cyclopentadienide (NaCp) and a dimeric structure 2a, with the general formula [Cor-Ce-Tp](2), is formed when potassium tris(pyrazolyl) borate (KTp) is used. Encapsulation of the counter-cation leads to the isolation of the monomeric structures 1b and 2b, with the general formulas [AM(2.2.2-cryptand)][Cor-Cp-X] (AM = Na or K, X = Cp or Tp). The structural and spectroscopic properties of the complexes have been investigated. C1 [Armstrong, Keith C.; Hohloch, Stephan; Lohrey, Trevor D.; Arnold, John] Univ Calif Berkeley, Dept Chem, 530 Latimer Hall, Berkeley, CA 94720 USA. [Zarkesh, Ryan A.] Sandia Natl Labs, 7011 East Ave, Livermore, CA 94550 USA. [Anstey, Mitchell R.] Davidson Coll, Dept Chem, POB 7120, Davidson, NC 28035 USA. RP Arnold, J (reprint author), Univ Calif Berkeley, Dept Chem, 530 Latimer Hall, Berkeley, CA 94720 USA.; Anstey, MR (reprint author), Davidson Coll, Dept Chem, POB 7120, Davidson, NC 28035 USA. EM Arnold@berkeley.edu; mitch.anstey@davidson.edu FU NSF [CHE-1465188]; German Academic Exchange Service (DAAD); Davidson College; Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy [DE-AC02-05CH11231]; NIH [S10-RR027172] FX We thank the NSF (Grant CHE-1465188), the German Academic Exchange Service (DAAD), and Davidson College for financial support and for a postdoctoral fellowship. We also acknowledge the Advanced Light Source, which is supported by the Director, Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. Dr Simon Teat from the ALS is also kindly acknowledged for help with measurements on the synchrotron. Furthermore, we also would like to thank the NIH (Grant S10-RR027172) for financial support of our X-ray crystallographic facility. Mary E. Garner and Dr Bernd M. Schmidt are kindly acknowledged for comments and helpful discussions. NR 81 TC 3 Z9 3 U1 0 U2 0 PU ROYAL SOC CHEMISTRY PI CAMBRIDGE PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND SN 1477-9226 EI 1477-9234 J9 DALTON T JI Dalton Trans. PY 2016 VL 45 IS 46 BP 18653 EP 18660 DI 10.1039/c6dt03884k PG 8 WC Chemistry, Inorganic & Nuclear SC Chemistry GA EC8CX UT WOS:000388369000030 PM 27827498 ER PT J AU Dombrowski, JP Johnson, GR Bell, AT Tilley, TD AF Dombrowski, James P. Johnson, Gregory R. Bell, Alexis T. Tilley, T. Don TI Ga[OSi((OBu)-Bu-t)(3)](3)center dot THF, a thermolytic molecular precursor for high surface area gallium-containing silica materials of controlled dispersion and stoichiometry (vol 45, pg 11025, 2016) SO DALTON TRANSACTIONS LA English DT Correction ID SILOXIDE; COMPLEXES; ZEOLITES; ALUMINUM; MODELS; OXIDE C1 [Dombrowski, James P.; Tilley, T. Don] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Johnson, Gregory R.; Bell, Alexis T.] Univ Calif Berkeley, Dept Chem & Biomol Engn, Berkeley, CA 94720 USA. [Dombrowski, James P.; Bell, Alexis T.; Tilley, T. Don] Lawrence Berkeley Lab, Chem Sci Div, 1 Cyclotron Rd, Berkeley, CA 94720 USA. RP Tilley, TD (reprint author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.; Bell, AT (reprint author), Univ Calif Berkeley, Dept Chem & Biomol Engn, Berkeley, CA 94720 USA.; Bell, AT; Tilley, TD (reprint author), Lawrence Berkeley Lab, Chem Sci Div, 1 Cyclotron Rd, Berkeley, CA 94720 USA. EM tdtilley@berkeley.edu NR 26 TC 0 Z9 0 U1 0 U2 0 PU ROYAL SOC CHEMISTRY PI CAMBRIDGE PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND SN 1477-9226 EI 1477-9234 J9 DALTON T JI Dalton Trans. PY 2016 VL 45 IS 46 BP 18750 EP 18751 DI 10.1039/c6dt90202b PG 2 WC Chemistry, Inorganic & Nuclear SC Chemistry GA EC8CX UT WOS:000388369000041 PM 27834429 ER PT S AU Colbert, EJM Zhu, QY Rieger, CG AF Colbert, Edward J. M. Zhu, Quanyan Rieger, Craig G. BE Zhu, Q Alpcan, T Panaousis, E Tambe, M Casey, W TI A Game-Theoretical Framework for Industrial Control System Security SO DECISION AND GAME THEORY FOR SECURITY, (GAMESEC 2016) SE Lecture Notes in Computer Science LA English DT Meeting Abstract CT 7th International Conference on Decision and Game Theory for Security (GameSec) CY NOV 02-04, 2016 CL New York, NY DE Industrial control system; ICS; SCADA; Game theory; Cyber security C1 [Colbert, Edward J. M.] US Army Res Lab, Adelphi, MD 20783 USA. [Zhu, Quanyan] New York Univ, New York, NY 11201 USA. [Rieger, Craig G.] Idaho Natl Lab, Idaho Falls, ID 83415 USA. EM edward.j.colbert2.civ@mail.mil; quanyan.zhu@nyu.edu; craig.riger@inl.gov NR 0 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 978-3-319-47413-7; 978-3-319-47412-0 J9 LECT NOTES COMPUT SC PY 2016 VL 9996 BP 469 EP 470 DI 10.1007/978-3-319-47413-7 PG 2 WC Computer Science, Information Systems; Computer Science, Theory & Methods; Mathematics, Interdisciplinary Applications SC Computer Science; Mathematics GA BG5ZJ UT WOS:000389821200027 ER PT S AU Barnard, HS MacDowell, AA Parkinson, DY Venkatakrishnan, SV Panerai, F Mansour, NN AF Barnard, Harold S. MacDowell, A. A. Parkinson, D. Y. Venkatakrishnan, S. V. Panerai, F. Mansour, N. N. BE Stock, SR Muller, B Wang, G TI Developments in synchrotron X-ray micro-tomography for in-situ materials analysis at the Advanced Light Source SO DEVELOPMENTS IN X-RAY TOMOGRAPHY X SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Developments in X-Ray Tomography X CY AUG 29-31, 2016 CL San Diego, CA SP SPIE DE X-ray micro-Tomography; X-ray; micro-tomography; synchrotron AB The Advanced Light Source (ALS) is a third-generation synchrotron X-ray source that operates as a user facility with more than 40 beamlines hosting over 2000 users per year. Synchrotron sources like the ALS provide high quality X-ray beams, with flux that is several orders of magnitude higher than lab-based sources. This is particularly advantageous for dynamic applications because it allows for high-speed, high-resolution imaging and microscale tomography. The hard X-ray beamline 8.3.2 at the Advanced Light Source enables imaging of samples at high temperatures and pressures, with mechanical loading and other realistic conditions using environmental test cells. These test cells enable experimental observation of samples undergoing dynamic microstructural changes in-situ. We present recent instrumentation developments that allow for continuous tomography with scan rates approaching 1 Hz per 3D image. In addition, our use of iterative reconstruction techniques allows for improved image quality despite fewer images and low exposure times used during fast tomography compared to traditional Fourier reconstruction methods. C1 [Barnard, Harold S.; MacDowell, A. A.; Parkinson, D. Y.; Venkatakrishnan, S. V.] Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA. [Panerai, F.; Mansour, N. N.] NASA, Ames Res Ctr, Moffett Field, CA USA. RP Barnard, HS (reprint author), Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 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 978-1-5106-0325-7; 978-1-5106-0326-4 J9 PROC SPIE PY 2016 VL 9967 AR UNSP 99671H DI 10.1117/12.2238305 PG 13 WC Optics; Physics, Applied; Statistics & Probability SC Optics; Physics; Mathematics GA BG5IN UT WOS:000389506300042 ER PT S AU Richter, CP Tan, X Young, H Stock, S Robinson, A Byskosh, O Zheng, J Soriano, C Xiao, X Whitlon, D AF Richter, Claus-Peter Tan, Xiaodong Young, Hunter Stock, Stuart Robinson, Alan Byskosh, Orest Zheng, Jing Soriano, Carmen Xiao, Xianghui Whitlon, Donna BE Stock, SR Muller, B Wang, G TI A comparison of classical histology to anatomy revealed by hard X-rays SO DEVELOPMENTS IN X-RAY TOMOGRAPHY X SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Developments in X-Ray Tomography X CY AUG 29-31, 2016 CL San Diego, CA SP SPIE DE X-rays; phase contrast; histology; kidney; cochlea; hyaline cartilage ID PHASE-CONTRAST; SYNCHROTRON-RADIATION; COMPUTED-TOMOGRAPHY; HIGH-RESOLUTION; INNER-EAR; MICROTOMOGRAPHY; TISSUES; MICRO AB Many diseases trigger morphological changes in affected tissue. Today, classical histology is still the "gold standard" used to study and describe those changes. Classical histology, however, is time consuming and requires chemical tissue manipulations that can result in significant tissue distortions. It is sometimes difficult to separate tissue-processing artifacts from changes caused by the disease process. We show that synchrotron X-ray phase-contrast micro-computed tomography (micro-CT) can be used to examine non-embedded, hydrated tissue at a resolution comparable to that obtained with classical histology. The data analysis from stacks of reconstructed micro-CT images is more flexible and faster than when using the classical, physically embedded sections that are by necessity fixed in a particular orientation. We show that in a three-dimensional (3D) structure with meticulous structural details such as the cochlea and the kidney, micro-CT is more flexible, faster and more convenient for morphological studies and disease diagnoses. C1 [Richter, Claus-Peter; Tan, Xiaodong; Young, Hunter; Robinson, Alan; Byskosh, Orest; Zheng, Jing; Whitlon, Donna] Northwestern Univ Feinberg, Sch Med, Dept Otolaryngol Head & Neck Surg, 303 E Chicago Ave, Chicago, IL 60611 USA. [Richter, Claus-Peter] Northwestern Univ, Dept Biomed Engn, 2145 Sheridan Rd Evanston, Evanston, IL 60208 USA. [Richter, Claus-Peter; Zheng, Jing; Whitlon, Donna] Northwestern Univ, Hugh Knowles Ctr Clin & Basic Sci Hearing & Its D, Dept Commun Sci & Disorders, 2240 Campus Dr, Evanston, IL 60208 USA. Northwestern Univ Feinberg, Dept Cell & Mol Biol, 320 E Super Ave, Chicago, IL 60611 USA. [Soriano, Carmen; Xiao, Xianghui] Argonne Natl Lab, Adv Photon Source, 9700 S Cass Ave B109, Lemont, IL 60439 USA. [Whitlon, Donna] Interdept Neurosci Program, 320 E Super St,5-474, Chicago, IL 60611 USA. RP Richter, CP (reprint author), Northwestern Univ Feinberg, Sch Med, Dept Otolaryngol Head & Neck Surg, 303 E Chicago Ave, Chicago, IL 60611 USA.; Richter, CP (reprint author), Northwestern Univ, Dept Biomed Engn, 2145 Sheridan Rd Evanston, Evanston, IL 60208 USA.; Richter, CP (reprint author), Northwestern Univ, Hugh Knowles Ctr Clin & Basic Sci Hearing & Its D, Dept Commun Sci & Disorders, 2240 Campus Dr, Evanston, IL 60208 USA. EM cri529@northwestern.edu NR 25 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 978-1-5106-0325-7; 978-1-5106-0326-4 J9 PROC SPIE PY 2016 VL 9967 DI 10.1117/12.2239146 PG 7 WC Optics; Physics, Applied; Statistics & Probability SC Optics; Physics; Mathematics GA BG5IN UT WOS:000389506300043 ER PT S AU Berrocal, E Bautista-Gomez, L Di, S Lan, ZL Cappello, F AF Berrocal, Eduardo Bautista-Gomez, Leonardo Di, Sheng Lan, Zhiling Cappello, Franck BE Dutot, PF Trystram, D TI Exploring Partial Replication to Improve Lightweight Silent Data Corruption Detection for HPC Applications SO EURO-PAR 2016: PARALLEL PROCESSING SE Lecture Notes in Computer Science LA English DT Proceedings Paper CT 22nd International Conference on Parallel and Distributed Computing (Euro-Par) CY AUG 24-26, 2016 CL Grenoble, FRANCE DE Silent data corruption detection; Partial replication; Data analysis; HPC applications AB Silent data corruption (SDC) poses a great challenge for high-performance computing (HPC) applications as we move to extreme-scale systems. If not dealt with properly, SDC has the potential to influence important scientific results, leading scientists to wrong conclusions. In previous work, our detector was able to detect SDC in HPC applications to a certain level by using the peculiarities of the data (more specifically, its "smoothness" in time and space) to make predictions. Accurate predictions allow us to detect corruptions when data values are far "enough" from them. However, these data-analytic solutions are still far from fully protecting applications to a level comparable with more expensive solutions such as full replication. In this work, we propose partial replication to overcome this limitation. More specifically, we have observed that not all processes of an MPI application experience the same level of data variability at exactly the same time. Thus, we can smartly choose and replicate only those processes for which our lightweight data-analytic detectors would perform poorly. Our results indicate that our new approach can protect the MPI applications analyzed with 49-53% less overhead than that of full duplication with similar detection recall. C1 [Berrocal, Eduardo; Lan, Zhiling] IIT, Chicago, IL 60616 USA. [Bautista-Gomez, Leonardo; Di, Sheng; Cappello, Franck] Argonne Natl Lab, Lemont, IL USA. RP Berrocal, E (reprint author), IIT, Chicago, IL 60616 USA. EM eberroca@iit.edu; leobago@anl.gov; sdi1@anl.gov; lan@iit.edu; cappello@anl.gov NR 26 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 978-3-319-43659-3; 978-3-319-43658-6 J9 LECT NOTES COMPUT SC PY 2016 VL 9833 BP 419 EP 430 DI 10.1007/978-3-319-43659-3_31 PG 12 WC Computer Science, Theory & Methods SC Computer Science GA BG5ID UT WOS:000389503800031 ER PT S AU Guhur, PL Zhang, H Peterka, T Constantinescu, E Cappello, F AF Guhur, Pierre-Louis Zhang, Hong Peterka, Tom Constantinescu, Emil Cappello, Franck BE Dutot, PF Trystram, D TI Lightweight and Accurate Silent Data Corruption Detection in Ordinary Differential Equation Solvers SO EURO-PAR 2016: PARALLEL PROCESSING SE Lecture Notes in Computer Science LA English DT Proceedings Paper CT 22nd International Conference on Parallel and Distributed Computing (Euro-Par) CY AUG 24-26, 2016 CL Grenoble, FRANCE DE Resilience; Fault tolerance; Runge-kutta; Numerical integration solvers; HPC; SDC ID ERRORS AB Silent data corruptions (SDCs) are errors that corrupt the system or falsify results while remaining unnoticed by firmware or operating systems. In numerical integration solvers, SDCs that impact the accuracy of the solver are considered significant. Detecting SDCs in high-performance computing is necessary because results need to be trustworthy and the increase of the number and complexity of components in emerging large-scale architectures makes SDCs more likely to occur. Until recently, SDC detection methods consisted in replicating the processes of the execution or in using checksums (for example algorithm-based fault tolerance). Recently, new detection methods have been proposed relying on mathematical properties of numerical kernels or performing data analysis of the results modified by the application. None of those methods, however, provide a lightweight solution guaranteeing that all significant SDCs are detected. We propose a new method called Hot Rod as a solution to this problem. It checks and potentially corrects the data produced by numerical integration solvers. Our theoretical model shows that all significant SDCs can be detected. We present two detectors and conduct experiments on streamline integration from the WRF meteorology application. Compared with the algorithmic detection methods, the accuracy of our first detector is increased by 52% with a similar false detection rate. The second detector has a false detection rate one order of magnitude lower than these detection methods while improving the detection accuracy by 23 %. The computational overhead is lower than 5% in both cases. The model has been developed for an explicit Runge-Kutta method, although it can be generalized to other solvers. C1 [Guhur, Pierre-Louis; Zhang, Hong; Peterka, Tom; Constantinescu, Emil; Cappello, Franck] Argonne Natl Lab, Lemont, IL 60439 USA. [Guhur, Pierre-Louis] ENS Cachan, Cachan, France. RP Guhur, PL (reprint author), Argonne Natl Lab, Lemont, IL 60439 USA.; Guhur, PL (reprint author), ENS Cachan, Cachan, France. EM pierre-louis.guhur@ens-cachan.fr; hongzh@mcs.anl.gov; tpeterka@mcs.anl.gov; emconsta@mcs.anl.gov; cappello@mcs.anl.gov NR 19 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 978-3-319-43659-3; 978-3-319-43658-6 J9 LECT NOTES COMPUT SC PY 2016 VL 9833 BP 644 EP 656 DI 10.1007/978-3-319-43659-3_47 PG 13 WC Computer Science, Theory & Methods SC Computer Science GA BG5ID UT WOS:000389503800047 ER PT S AU Schweizer, S Chaudret, R Spyriouni, T Low, J Subramanian, L AF Schweizer, Sabine Chaudret, Robin Spyriouni, Theodora Low, John Subramanian, Lalitha BE Snurr, RQ Adjiman, CS Kofke, DA TI Influence of the Precursor Composition and Reaction Conditions on Raney-Nickel Catalytic System SO FOUNDATIONS OF MOLECULAR MODELING AND SIMULATION SE Molecular Modeling and Simulation-Applications and Perspectives LA English DT Proceedings Paper CT 6th Conference on Foundations of Molecular Modeling and Simulation (FOMMS) CY 2015 CL OR SP CACHE Corp, Amer Inst Chem Engineers, Computat Mol Sci & Engn Forum, ExxonMobil, Imperial Coll London, Journal Phys Chem Mat Design, Natl Inst Stand & Technol, Natl Sci Fdn, NW Univ, Procter & Gamble, Royal Soc Chem, Scienomics, Springer, Univ Minnesota,Nanoporous Mat Genome Ctr, UOP DE Catalysis; Molecular dynamics; Thermodynamic modeling; Nanostructure; Alloy ID CRYSTALLINE POROUS MATERIALS; VAPOR-LIQUID-EQUILIBRIUM; CYCLOHEXANE MIXTURES; HYDROGEN-BENZENE; ALGORITHMS; STATE; PHASE AB Raney-Nickel is routinely used in the process of selective hydrogenation of benzene and its derivatives. In order to gain a better understanding of this catalytic reaction, we have implemented both atomistic and thermodynamic modeling methods. While modeling at the atomistic level provides essential information about structure, electronic effects and dynamics, thermodynamic modeling provides data on physical properties of the system of interest. First, we investigated the influence of the alloy composition on the Raney-Nickel catalyst structure based on a molecular dynamics (MD) based workflow. Different initial and final NiAl compositions were tested. Our simulations indicate that there is a dependence of the pore size on the NiAl composition and this is more pronounced when some Aluminum remains in the catalyst. Next, the solubility of hydrogen in benzene was calculated with thermodynamic modeling. The effect of temperature, pressure, and concentration of cyclohexane (product) on the solubility of hydrogen in benzene was examined. For a given temperature, our studies provided the optimal pressure necessary to obtain maximum solubility of hydrogen in benzene. Finally, based on the results obtained, we have studied the competitive adsorption and chemisorption of benzene and cyclohexane on Raney-Nickel as a first step towards modeling the catalytic hydrogenation of benzene. C1 [Schweizer, Sabine; Chaudret, Robin; Spyriouni, Theodora; Subramanian, Lalitha] Scienomics, 16 Rue Arcade, F-75008 Paris, France. [Low, John] Argonne Natl Lab, 9700 South Cass Ave, Argonne, IL 60439 USA. RP Schweizer, S (reprint author), Scienomics, 16 Rue Arcade, F-75008 Paris, France. EM sabine.schweizer@scienomics.com NR 19 TC 0 Z9 0 U1 2 U2 2 PU SPRINGER-VERLAG SINGAPORE PTE LTD PI SINGAPORE PA SINGAPORE, SINGAPORE SN 2364-5083 BN 978-981-10-1128-3; 978-981-10-1126-9 J9 MOLEC MODEL SIMUL PY 2016 BP 125 EP 135 DI 10.1007/978-981-10-1128-3_8 PG 11 WC Physics, Atomic, Molecular & Chemical SC Physics GA BG5RO UT WOS:000389708100008 ER PT S AU Ingraham, P Stubbs, CW Claver, C Lupton, R Araujo, C Liang, M Andrew, J Barr, J Brannon, K Coughlin, M Fisher-Levine, M Gressler, W Sebag, J Thomas, S Wiecha, O Yoachim, P AF Ingraham, Patrick Stubbs, Christopher W. Claver, Chuck Lupton, Robert Araujo, Constanza Liang, Ming Andrew, John Barr, Jeff Brannon, Kairn Coughlin, Michael Fisher-Levine, Merlin Gressler, William Sebag, Jacques Thomas, Sandrine Wiecha, Oliver Yoachim, Peter BE Hall, HJ Gilmozzi, R Marshall, HK TI The LSST calibration hardware system design and development SO GROUND-BASED AND AIRBORNE TELESCOPES VI SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Ground-Based and Airborne Telescopes VI CY JUN 26-JUL 01, 2016 CL Edinburgh, SCOTLAND SP SPIE DE Calibration; LSST; photometry; operations; spectrograph; atmospheric transmission ID TUNABLE LASER; TELESCOPE; IMAGER AB The Large Synoptic Survey Telescope (LSST) is currently under construction and upon completion will perform precision photometry over the visible sky at a 3-day cadence. To meet the stringent relative photometry goals, LSST will employ multiple calibration systems to measure and compensate for systematic errors. This paper describes the design and development of these systems including: a dedicated calibration telescope and spectrograph to measure the atmospheric transmission function, a collimated beam projector to characterize the spatial dependence of the LSST transmission function and a flat-field screen illumination system to measure the high-frequency variations in the global system response function. C1 [Ingraham, Patrick; Claver, Chuck; Araujo, Constanza; Liang, Ming; Andrew, John; Barr, Jeff; Gressler, William; Sebag, Jacques; Thomas, Sandrine; Wiecha, Oliver] Large Synopt Survey Telescope, 950 N Cherry Ave, Tucson, AZ 85719 USA. [Stubbs, Christopher W.; Brannon, Kairn; Coughlin, Michael] Harvard Univ, Dept Phys, 17 Oxford St, Cambridge, MA 02128 USA. [Lupton, Robert; Fisher-Levine, Merlin] Princeton Univ, Dept Astrophys Sci, Princeton, NJ 08544 USA. [Fisher-Levine, Merlin] Brookhaven Natl Lab, Upton, NY 11973 USA. [Yoachim, Peter] Univ Washington, Dept Astron, 3910 15th Ave NE, Seattle, WA 98195 USA. RP Ingraham, P (reprint author), Large Synopt Survey Telescope, 950 N Cherry Ave, Tucson, AZ 85719 USA. EM pingraham@lsst.org NR 16 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 978-1-5106-0191-8; 978-1-5106-0192-5 J9 PROC SPIE PY 2016 VL 9906 AR UNSP 990600 DI 10.1117/12.2233404 PN 1 PG 10 WC Instruments & Instrumentation; Optics SC Instruments & Instrumentation; Optics GA BG2WM UT WOS:000387731100020 ER PT S AU Lew, R Lau, N Boring, RL Anderson, J AF Lew, Roger Lau, Nathan Boring, Ronald L. Anderson, John BE Nah, FFH Tan, CH TI The Role of HCI in Cross-Sector Research on Grand Challenges SO HCI IN BUSINESS, GOVERNMENT, AND ORGANIZATIONS: ECOMMERCE AND INNOVATION, PT I SE Lecture Notes in Computer Science LA English DT Proceedings Paper CT 3rd International Conference on HCI in Business, Government, and Organizations - eCommerce and Innovation (HCIBGO) held as part of 18th International Conference on Human-Computer Interaction (HCI International) CY JUL 17-22, 2016 CL Toronto, CANADA DE Grand challenges; Cyberinfrastructure; Cyber physical systems; Coupled natural human systems; Critical infrastructure; Decision support tools ID SCIENCE AB Cross-sector or collaborative research between government, academia, industry, and public stakeholders is essential to find innovative solutions to 21st century grand challenges. The proliferation of cyberinfrastructure and cyber physical systems will play critical roles in managing information and large scale human machine systems. While available data, processing power, and model complexities grow at an accelerating rate, the information processing capacity of human cognition does not. Human computer interaction research is needed to bridge this gap and enable the development, operation, and analytics of emerging, integrated, large-scale, multi-user, realtime systems. C1 [Lew, Roger; Anderson, John] Univ Idaho, Moscow, ID 83843 USA. [Lau, Nathan] Virginia Polytech Inst & State Univ, Blacksburg, VA USA. [Boring, Ronald L.] Idaho Natl Lab, Idaho Falls, ID USA. RP Lew, R (reprint author), Univ Idaho, Moscow, ID 83843 USA. EM rogerlew@uidaho.edu; nathan.lau@vt.edu; ronald.boring@inl.gov; jwa@uidaho.edu NR 23 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 978-3-319-39395-7; 978-3-319-39396-4 J9 LECT NOTES COMPUT SC PY 2016 VL 9751 BP 519 EP 530 DI 10.1007/978-3-319-39396-4_48 PG 12 WC Business; Computer Science, Interdisciplinary Applications SC Business & Economics; Computer Science GA BG5SF UT WOS:000389720700048 ER PT S AU Tan, CH Silva, A Lee, R Wang, KL Nah, FFH AF Tan, Chuan-Hoo Silva, Austin Lee, Rich Wang, Kanliang Nah, Fiona Fui-Hoon BE Nah, FFH Tan, CH TI HCI Testing in Laboratory or Field Settings SO HCI IN BUSINESS, GOVERNMENT, AND ORGANIZATIONS: INFORMATION SYSTEMS, HCIBGO 2016, PT II SE Lecture Notes in Computer Science LA English DT Proceedings Paper CT 3rd International Conference on HCI in Business, Government, and Organizations - Information Systems (HCIBGO) Held as Part of 18th International Conference on Human-Computer Interaction (HCI International) CY JUL 17-22, 2016 CL Toronto, CANADA DE HCI testing; Laboratory; Field AB This paper presents perspectives from both academia and practice on how an HCI testing is to be conducted and the deliberations that go into the testing. HCI testing can be conducted in closed-door laboratory or in a field setting. While there is an increased interest in field testing of an HCI artifact, there is always an enduring concern over how to administer a field testing given that the testers will have less control over the course of testing. In this paper, we cover HCI testing deliberation as well as the operational issues of field testing, and conclude the paper with an exemplary case of a large-scale field testing conducted in Taiwan. C1 [Tan, Chuan-Hoo] Natl Univ Singapore, Dept Informat Syst, Singapore, Singapore. [Silva, Austin] Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. [Lee, Rich] IBM Corp, Taipei, Taiwan. [Wang, Kanliang] Renmin Univ, Dept Management Sci & Engn, Beijing, Peoples R China. [Nah, Fiona Fui-Hoon] Missouri Univ Sci & Technol, Rolla, MO USA. RP Tan, CH (reprint author), Natl Univ Singapore, Dept Informat Syst, Singapore, Singapore. EM tancho@comp.nus.edu.sg; aussilv@sandia.gov; richchihlee@gmail.com; kanliang.wang@gmail.com; nahf@mst.edu NR 6 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 978-3-319-39398-8; 978-3-319-39399-5 J9 LECT NOTES COMPUT SC PY 2016 VL 9752 BP 110 EP 116 DI 10.1007/978-3-319-39399-5_11 PG 7 WC Computer Science, Information Systems; Computer Science, Interdisciplinary Applications; Social Sciences, Interdisciplinary SC Computer Science; Social Sciences - Other Topics GA BG5YJ UT WOS:000389807900011 ER PT S AU Avina, GE AF Avina, Glory Emmanuel BE Nah, FFH Tan, CH TI Collaboration Between Cognitive Science and Business Management to Benefit the Government Sector SO HCI IN BUSINESS, GOVERNMENT, AND ORGANIZATIONS: INFORMATION SYSTEMS, HCIBGO 2016, PT II SE Lecture Notes in Computer Science LA English DT Proceedings Paper CT 3rd International Conference on HCI in Business, Government, and Organizations - Information Systems (HCIBGO) Held as Part of 18th International Conference on Human-Computer Interaction (HCI International) CY JUL 17-22, 2016 CL Toronto, CANADA DE Cognitive science; Business management; Mission impact; Applied research AB Cognitive science is an interdisciplinary science which studies the human dimension, drawing from academic disciplines such as psychology, linguistics, philosophy, and computer modeling. Business management is controlling, leading, monitoring, organizing, and planning critical information to bring useful resources and capabilities to a viable market. Finally, the government sector has many roles, but one primary goal is to bring innovative solutions to maintain and enhance national security. There currently is a gap in the government sector between applied research and solutions applicable to the national security field. This is a deep problem since a critical element to many national security issues is the human dimension and requires cognitive science approaches. One major cause to this gap is the separation between business management and cognitive science: scientific research is either not being tailored to the mission need or deployed at a time when it can best be absorbed by national security concerns. This paper addresses three major themes: (1) how cognitive science and business management benefits the government sector, (2) the current gaps that exist between cognitive science and business management, and (3) how cognitive science and business management may work to address government sector, national security needs. C1 [Avina, Glory Emmanuel] Sandia Natl Labs, Livermore, CA 94551 USA. RP Avina, GE (reprint author), Sandia Natl Labs, Livermore, CA 94551 USA. EM gremman@sandia.gov NR 22 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 978-3-319-39398-8; 978-3-319-39399-5 J9 LECT NOTES COMPUT SC PY 2016 VL 9752 BP 131 EP 139 DI 10.1007/978-3-319-39399-5_13 PG 9 WC Computer Science, Information Systems; Computer Science, Interdisciplinary Applications; Social Sciences, Interdisciplinary SC Computer Science; Social Sciences - Other Topics GA BG5YJ UT WOS:000389807900013 ER PT S AU Salomon, KA Boudreaux, D AF Salomon, Kathryn A. Boudreaux, David BE Nah, FFH Tan, CH TI Identification of Future Human-Computer System Needs in Army Aviation SO HCI IN BUSINESS, GOVERNMENT, AND ORGANIZATIONS: INFORMATION SYSTEMS, HCIBGO 2016, PT II SE Lecture Notes in Computer Science LA English DT Proceedings Paper CT 3rd International Conference on HCI in Business, Government, and Organizations - Information Systems (HCIBGO) Held as Part of 18th International Conference on Human-Computer Interaction (HCI International) CY JUL 17-22, 2016 CL Toronto, CANADA DE Military; Army; Aviation; Adaptive automation; Pilot-machine interface ID MENTAL WORKLOAD; ADAPTIVE AUTOMATION; INDEPENDENT AGENT; TEAM PLAY; FLIGHT; TASK; PERFORMANCE; POWERFUL; MISSION AB The Army has begun to develop the next generation of rotary-wing aircraft, which will incorporate advanced automated systems. Military operations place a number of cognitive demands on pilots in addition to those seen in commercial aviation. This paper reviews the essential issues in the design of adaptive automation systems for military aircraft and discusses how adaptive automation can utilize psychophysiological feedback to enhance safety and performance. C1 [Salomon, Kathryn A.; Boudreaux, David] US Army, Aeromed Res Lab, Ft Rucker, AL 36362 USA. [Salomon, Kathryn A.] Oak Ridge Inst Sci & Educ, Oak Ridge, TN 37830 USA. RP Salomon, KA; Boudreaux, D (reprint author), US Army, Aeromed Res Lab, Ft Rucker, AL 36362 USA.; Salomon, KA (reprint author), Oak Ridge Inst Sci & Educ, Oak Ridge, TN 37830 USA. EM kathryn.a.salomon2.ctr@mail.mil; david.a.boudreaux9.mil@mail.mil NR 45 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 978-3-319-39398-8; 978-3-319-39399-5 J9 LECT NOTES COMPUT SC PY 2016 VL 9752 BP 209 EP 220 DI 10.1007/978-3-319-39399-5_20 PG 12 WC Computer Science, Information Systems; Computer Science, Interdisciplinary Applications; Social Sciences, Interdisciplinary SC Computer Science; Social Sciences - Other Topics GA BG5YJ UT WOS:000389807900020 ER PT S AU Wachtel, A Hoffman, M Lawton, C Speed, A Gauthier, J Kittinger, R AF Wachtel, Amanda Hoffman, Matthew Lawton, Craig Speed, Ann Gauthier, John Kittinger, Robert BE Nah, FFH Tan, CH TI Exploring Human-Technology Interaction in Layered Security Military Applications SO HCI IN BUSINESS, GOVERNMENT, AND ORGANIZATIONS: INFORMATION SYSTEMS, HCIBGO 2016, PT II SE Lecture Notes in Computer Science LA English DT Proceedings Paper CT 3rd International Conference on HCI in Business, Government, and Organizations - Information Systems (HCIBGO) Held as Part of 18th International Conference on Human-Computer Interaction (HCI International) CY JUL 17-22, 2016 CL Toronto, CANADA DE System-of-systems; Layered security; Human-technology interaction; Human performance factors; Modeling and simulation; Detection theory AB System-of-systems modeling has traditionally focused on physical systems rather than humans, but recent events have proved the necessity of considering the human in the loop. As technology becomes more complex and layered security continues to increase in importance, capturing humans and their interactions with technologies within the system-of-systems will be increasingly necessary. After an extensive job-task analysis, a novel type of system-of-systems simulation model has been created to capture the human-technology interactions on an extra-small forward operating base to better understand performance, key security drivers, and the robustness of the base. In addition to the model, an innovative framework for using detection theory to calculate d' for individual elements of the layered security system, and for the entire security system as a whole, is under development. C1 [Wachtel, Amanda; Hoffman, Matthew; Lawton, Craig; Speed, Ann; Gauthier, John; Kittinger, Robert] Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. RP Wachtel, A (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. EM awachte@sandia.gov; mjhoffm@sandia.gov; crlawto@sandia.gov; aespeed@sandia.gov; jhgauth@sandia.gov; rskitti@sandia.gov NR 5 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 978-3-319-39398-8; 978-3-319-39399-5 J9 LECT NOTES COMPUT SC PY 2016 VL 9752 BP 241 EP 250 DI 10.1007/978-3-319-39399-5_23 PG 10 WC Computer Science, Information Systems; Computer Science, Interdisciplinary Applications; Social Sciences, Interdisciplinary SC Computer Science; Social Sciences - Other Topics GA BG5YJ UT WOS:000389807900023 ER PT S AU Ulrich, T Werner, S Lew, R Boring, R AF Ulrich, Thomas Werner, Steffen Lew, Roger Boring, Ronald BE Stephanidis, C TI COSSplay: Validating a Computerized Operator Support System Using a Microworld Simulator SO HCI INTERNATIONAL 2016 - POSTERS' EXTENDED ABSTRACTS, PT I SE Communications in Computer and Information Science LA English DT Proceedings Paper CT 18th International Conference on Human-Computer Interaction (HCI International) CY JUL 17-22, 2016 CL Toronto, CANADA DE Microworld; Simulation; Process control; Interface design AB Our computerized operator support system microworld simulator with student operators approach is called COSSplay. COSSplay allows testing of specific interface elements such as alarm visualizations without the constraints of the surrounding nuclear control room elements typically associated with full-scope simulation studies. Approaches like COSSplay are ideal for first principles research in human factors and human-computer interaction. This paper highlights the uses of COSSplay as a complimentary approach to full-scope simulation studies for complex interface design. C1 [Ulrich, Thomas; Werner, Steffen; Lew, Roger] Univ Idaho, Moscow, ID USA. [Boring, Ronald] Idaho Natl Lab, Idaho Falls, ID USA. RP Ulrich, T (reprint author), Univ Idaho, Moscow, ID USA. EM ulrich@uidaho.edu; swerner@uidaho.edu; rogerlew@vandals.uidaho.edu; ronald.boring@inl.gov NR 15 TC 0 Z9 0 U1 0 U2 0 PU SPRINGER INT PUBLISHING AG PI CHAM PA GEWERBESTRASSE 11, CHAM, CH-6330, SWITZERLAND SN 1865-0929 BN 978-3-319-40548-3; 978-3-319-40547-6 J9 COMM COM INF SC PY 2016 VL 617 BP 161 EP 166 DI 10.1007/978-3-319-40548-3_27 PG 6 WC Computer Science, Cybernetics; Computer Science, Hardware & Architecture; Computer Science, Software Engineering; Ergonomics SC Computer Science; Engineering GA BG5SU UT WOS:000389727300027 ER PT S AU Kunkel, JM Lofstead, J McMurtrie, C AF Kunkel, Julian M. Lofstead, Jay McMurtrie, Colin BE Taufer, M Mohr, B Kunkel, JM TI HPC I/O in the Data Center Workshop (HPC-IODC) SO HIGH PERFORMANCE COMPUTING, ISC HIGH PERFORMANCE 2016 INTERNATIONAL WORKSHOPS SE Lecture Notes in Computer Science LA English DT Proceedings Paper CT International Supercomputing Conference (ISC High Performance) CY JUN 19-23, 2016 CL Frankfurt, GERMANY C1 [Kunkel, Julian M.] Deutsch Klimarechenzentrum, Bundesstr 45a, D-20146 Hamburg, Germany. [Lofstead, Jay] Sandia Natl Labs, Ctr Res Comp, POB 5800, Albuquerque, NM 87185 USA. [McMurtrie, Colin] Swiss Natl Comp Ctr CSCS, Lugano, Switzerland. RP Kunkel, JM (reprint author), Deutsch Klimarechenzentrum, Bundesstr 45a, D-20146 Hamburg, Germany. EM kunkel@dkrz.de NR 3 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 978-3-319-46079-6; 978-3-319-46078-9 J9 LECT NOTES COMPUT SC PY 2016 VL 9945 BP 116 EP 120 PG 5 WC Computer Science, Information Systems; Computer Science, Theory & Methods SC Computer Science GA BG5XH UT WOS:000389802700010 ER PT S AU Curry, ML Ward, HL Danielson, G Lofstead, J AF Curry, Matthew L. Ward, H. Lee Danielson, Geoff Lofstead, Jay BE Taufer, M Mohr, B Kunkel, JM TI An Overview of the Sirocco Parallel Storage System SO HIGH PERFORMANCE COMPUTING, ISC HIGH PERFORMANCE 2016 INTERNATIONAL WORKSHOPS SE Lecture Notes in Computer Science LA English DT Proceedings Paper CT International Supercomputing Conference (ISC High Performance) CY JUN 19-23, 2016 CL Frankfurt, GERMANY DE Parallel file systems; High performance computing; I/O AB Sirocco is a massively parallel, high performance storage system that breaks from the classical Zebra-style file system design paradigm. Its architecture is inspired by peer-to-peer and victim-cache architectures, and emphasizes client-to-client coordination, low server-side coupling, and free data movement and placement. By leveraging these ideas, Sirocco natively supports automatic migration between several media types, including RAM, flash, disk, and archival storage. Sirocco provides advanced storage interfaces, enabling clients to efficiently use key-value storage or block-based storage through a single interface. It also provides several levels of transactional data updates, up to and including ACID-compliant updates across several objects. Further support is provided for concurrency control, enabling greater performance during safe concurrent modification. By pioneering these and other techniques, Sirocco is well-poised to fulfill a need for a massively scalable, write-optimized storage system. This paper provides an overview of Sirocco's current system design. C1 [Curry, Matthew L.; Ward, H. Lee; Lofstead, Jay] Sandia Natl Labs, Albuquerque, NM 87186 USA. [Danielson, Geoff] Hewlett Packard Enterprise, Palo Alto, CA 94304 USA. RP Curry, ML (reprint author), Sandia Natl Labs, Albuquerque, NM 87186 USA. EM mlcurry@sandia.gov; lee@sandia.gov; geoffrey.danielson@hpe.com; gflofst@sandia.gov NR 10 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 978-3-319-46079-6; 978-3-319-46078-9 J9 LECT NOTES COMPUT SC PY 2016 VL 9945 BP 121 EP 129 DI 10.1007/978-3-319-46079-6_9 PG 9 WC Computer Science, Information Systems; Computer Science, Theory & Methods SC Computer Science GA BG5XH UT WOS:000389802700011 ER PT S AU Lofstead, J Jean-Baptiste, G Oldfield, R AF Lofstead, Jay Jean-Baptiste, Gregory Oldfield, Ron BE Taufer, M Mohr, B Kunkel, JM TI Delta: Data Reduction for Integrated Application Workflows and Data Storage SO HIGH PERFORMANCE COMPUTING, ISC HIGH PERFORMANCE 2016 INTERNATIONAL WORKSHOPS SE Lecture Notes in Computer Science LA English DT Proceedings Paper CT International Supercomputing Conference (ISC High Performance) CY JUN 19-23, 2016 CL Frankfurt, GERMANY AB Data sizes are growing far faster than storage bandwidth. To address this growing gap, Integrated Application Workflows (IAWs) are being investigated as a potential to replace using a centralized storage array for storing intermediate data. IAWs run multiple simulation workflow components concurrently on an HPC resource connecting these components using compute area resources. These IAWs require high frequency and high volume data transfers between compute nodes and staging area nodes during the lifetime of a large parallel computation. The available network bandwidth between the two areas may not be enough to efficiently support the data movement. As the processing power available to compute resources increases, the requirements for this data transfer will become more difficult to satisfy and perhaps will not be satisfiable at all since network capabilities are not expanding at a comparable rate. It is necessary to reduce the volume of data without reducing the quality of data when it is being processed and analyzed. Delta resolves the issue by addressing the lifetime data transfer operations. Delta removes subsequent identical copies of already transmitted data prior to transfer and restores those pieces once the data has reached the destination using previously transmitted data. Delta is able to identify duplicated information and determine the most space efficient way to represent it. Initial tests show about 50% reduction in data movement while maintaining the same data quality and transmission frequency. Given the simplicity of the approach and the log-based format employed by ADIOS, the approach can also be used to write less data to the storage array outside of IAW considerations. C1 [Lofstead, Jay; Oldfield, Ron] Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. [Jean-Baptiste, Gregory] Florida Int Univ, Miami, FL 33199 USA. RP Lofstead, J (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. EM gflofst@sandia.gov; gjean011@fiu.edu; raoldfi@sandia.gov NR 16 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 978-3-319-46079-6; 978-3-319-46078-9 J9 LECT NOTES COMPUT SC PY 2016 VL 9945 BP 142 EP 152 DI 10.1007/978-3-319-46079-6_11 PG 11 WC Computer Science, Information Systems; Computer Science, Theory & Methods SC Computer Science GA BG5XH UT WOS:000389802700013 ER PT S AU Hernandez, OR Lopez, MG Pleiter, D Wells, J AF Hernandez, Oscar R. Lopez, M. Graham Pleiter, Dirk Wells, Jack BE Taufer, M Mohr, B Kunkel, JM TI International Workshop on OpenPOWER for HPC (IWOPH) SO HIGH PERFORMANCE COMPUTING, ISC HIGH PERFORMANCE 2016 INTERNATIONAL WORKSHOPS SE Lecture Notes in Computer Science LA English DT Proceedings Paper CT International Supercomputing Conference (ISC High Performance) CY JUN 19-23, 2016 CL Frankfurt, GERMANY DE OpenPOWER; POWER8; GPU acceleration; Applications; Programming models; Data analytics; Energy efficiency AB The InternationalWorkshop on OpenPOWER for HPC Proceedings provided a venue for broader community to explore OpenPOWER technologies for their research and development activities. It allowed both application experts and experts on different technologies to exchange experiences with using technologies from this new ecosystem. C1 [Hernandez, Oscar R.; Lopez, M. Graham; Wells, Jack] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. [Pleiter, Dirk] Forschungszentrum Julich, D-52425 Julich, Germany. RP Hernandez, OR (reprint author), Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA. EM oscar@ornl.gvo; lopezmg@ornl.gvo; d.pleiter@fz-juelich.de; wellsjc@ornl.gvo OI Lopez, Graham/0000-0002-5375-2105 NR 9 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 978-3-319-46079-6; 978-3-319-46078-9 J9 LECT NOTES COMPUT SC PY 2016 VL 9945 BP 170 EP 172 PG 3 WC Computer Science, Information Systems; Computer Science, Theory & Methods SC Computer Science GA BG5XH UT WOS:000389802700015 ER PT S AU Stone, JE Hynninen, AP Phillips, JC Schulten, K AF Stone, John E. Hynninen, Antti-Pekka Phillips, James C. Schulten, Klaus BE Taufer, M Mohr, B Kunkel, JM TI Early Experiences Porting the NAMD and VMD Molecular Simulation and Analysis Software to GPU-Accelerated OpenPOWER Platforms SO HIGH PERFORMANCE COMPUTING, ISC HIGH PERFORMANCE 2016 INTERNATIONAL WORKSHOPS SE Lecture Notes in Computer Science LA English DT Proceedings Paper CT International Supercomputing Conference (ISC High Performance) CY JUN 19-23, 2016 CL Frankfurt, GERMANY ID PARTICLE MESH EWALD; DYNAMICS; TOOLKIT AB All-atom molecular dynamics simulations of biomolecules provide a powerful tool for exploring the structure and dynamics of large protein complexes within realistic cellular environments. Unfortunately, such simulations are extremely demanding in terms of their computational requirements, and they present many challenges in terms of preparation, simulation methodology, and analysis and visualization of results. We describe our early experiences porting the popular molecular dynamics simulation program NAMD and the simulation preparation, analysis, and visualization tool VMD to GPU-accelerated OpenPOWER hardware platforms. We report our experiences with compiler-provided autovectorization and compare with hand-coded vector intrinsics for the POWER8 CPU. We explore the performance benefits obtained from unique POWER8 architectural features such as 8-way SMT and its value for particular molecular modeling tasks. Finally, we evaluate the performance of several GPU-accelerated molecular modeling kernels and relate them to other hardware platforms. C1 [Stone, John E.; Phillips, James C.; Schulten, Klaus] Univ Illinois, Beckman Inst Adv Sci & Technol, Urbana, IL 61801 USA. [Hynninen, Antti-Pekka] Oak Ridge Natl Lab, Oak Ridge Leadership Comp Facil, Oak Ridge, TN USA. [Schulten, Klaus] Univ Illinois, Dept Phys, Urbana, IL USA. RP Stone, JE (reprint author), Univ Illinois, Beckman Inst Adv Sci & Technol, Urbana, IL 61801 USA. EM jestone@illinois.edu NR 29 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 978-3-319-46079-6; 978-3-319-46078-9 J9 LECT NOTES COMPUT SC PY 2016 VL 9945 BP 188 EP 206 DI 10.1007/978-3-319-46079-6_14 PG 19 WC Computer Science, Information Systems; Computer Science, Theory & Methods SC Computer Science GA BG5XH UT WOS:000389802700017 ER PT S AU Gerber, RA Milfeld, K Newburn, CJ Steinke, T AF Gerber, Richard A. Milfeld, Kent Newburn, Chris J. Steinke, Thomas BE Taufer, M Mohr, B Kunkel, JM TI Application Performance on Intel Xeon Phi - Being Prepared for KNL and Beyond SO HIGH PERFORMANCE COMPUTING, ISC HIGH PERFORMANCE 2016 INTERNATIONAL WORKSHOPS SE Lecture Notes in Computer Science LA English DT Proceedings Paper CT International Supercomputing Conference (ISC High Performance) CY JUN 19-23, 2016 CL Frankfurt, GERMANY C1 [Gerber, Richard A.] Natl Energy Res Sci Comp Ctr, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. [Milfeld, Kent] TACC, Austin, TX USA. [Newburn, Chris J.] Intel Corp, Santa Clara, CA USA. [Steinke, Thomas] ZIB, Berlin, Germany. RP Gerber, RA (reprint author), Natl Energy Res Sci Comp Ctr, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. EM ragerber@lbl.gov; milfeld@tacc.utexas.edu; chris.newburn@intel.com; steinke@zib.de NR 0 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 978-3-319-46079-6; 978-3-319-46078-9 J9 LECT NOTES COMPUT SC PY 2016 VL 9945 BP 304 EP 306 PG 3 WC Computer Science, Information Systems; Computer Science, Theory & Methods SC Computer Science GA BG5XH UT WOS:000389802700025 ER PT S AU Doerfler, D Deslippe, J Williams, S Oliker, L Cook, B Kurth, T Lobet, M Malas, T Vay, JL Vincenti, H AF Doerfler, Douglas Deslippe, Jack Williams, Samuel Oliker, Leonid Cook, Brandon Kurth, Thorsten Lobet, Mathieu Malas, Tareq Vay, Jean-Luc Vincenti, Henri BE Taufer, M Mohr, B Kunkel, JM TI Applying the Roofline Performance Model to the Intel Xeon Phi Knights Landing Processor SO HIGH PERFORMANCE COMPUTING, ISC HIGH PERFORMANCE 2016 INTERNATIONAL WORKSHOPS SE Lecture Notes in Computer Science LA English DT Proceedings Paper CT International Supercomputing Conference (ISC High Performance) CY JUN 19-23, 2016 CL Frankfurt, GERMANY AB The Roofline Performance Model is a visually intuitive method used to bound the sustained peak floating-point performance of any given arithmetic kernel on any given processor architecture. In the Roofline, performance is nominally measured in floating-point operations per second as a function of arithmetic intensity (operations per byte of data). In this study we determine the Roofline for the Intel Knights Landing (KNL) processor, determining the sustained peak memory bandwidth and floating-point performance for all levels of the memory hierarchy, in all the different KNL cluster modes. We then determine arithmetic intensity and performance for a suite of application kernels being targeted for the KNL based supercomputer Cori, and make comparisons to current Intel Xeon processors. Cori is the National Energy Research Scientific Computing Center's (NERSC) next generation supercomputer. Scheduled for deployment mid-2016, it will be one of the earliest and largest KNL deployments in the world. C1 [Doerfler, Douglas; Deslippe, Jack; Williams, Samuel; Oliker, Leonid; Cook, Brandon; Kurth, Thorsten; Lobet, Mathieu; Malas, Tareq; Vay, Jean-Luc; Vincenti, Henri] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RP Doerfler, D (reprint author), Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. EM dwdoerf@lbl.gov; jrdeslippe@lbl.gov; swwilliams@lbl.gov; loliker@lbl.gov; bgcook@lbl.gov; tkurth@lbl.gov; mlobet@lbl.gov; tmalas@lbl.gov; jlvay@lbl.gov; hvincenti@lbl.gov NR 17 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 978-3-319-46079-6; 978-3-319-46078-9 J9 LECT NOTES COMPUT SC PY 2016 VL 9945 BP 339 EP 353 DI 10.1007/978-3-319-46079-6_24 PG 15 WC Computer Science, Information Systems; Computer Science, Theory & Methods SC Computer Science GA BG5XH UT WOS:000389802700028 ER PT S AU Cook, B Maris, P Shao, MY Wichmann, N Wagner, M O'Neill, J Phung, T Bansal, G AF Cook, Brandon Maris, Pieter Shao, Meiyue Wichmann, Nathan Wagner, Marcus O'Neill, John Thanh Phung Bansal, Gaurav BE Taufer, M Mohr, B Kunkel, JM TI High Performance Optimizations for Nuclear Physics Code MFDn on KNL SO HIGH PERFORMANCE COMPUTING, ISC HIGH PERFORMANCE 2016 INTERNATIONAL WORKSHOPS SE Lecture Notes in Computer Science LA English DT Proceedings Paper CT International Supercomputing Conference (ISC High Performance) CY JUN 19-23, 2016 CL Frankfurt, GERMANY DE Vectorization; MCDRAM; KNL; MFDn; Sparse matrix; SpMV AB Initial optimization strategies and results on MFDn, a large-scale nuclear physics application code, running on a single KNL node are presented. This code consists of the construction of a very large sparse real symmetric matrix and computing a few lowest eigen-values and eigen-vectors of this matrix through iterative methods. Challenges addressed include effectively utilizing MCDRAM with representative input data for production runs on 5,000 KNL nodes that require over 80GB of memory per node, using OpenMP 4 to parallelize functions in the construction phase of the sparse matrices, and vectorizing those functions in spite of while-loops, conditionals, and lookup tables with indirect indexing. Moreover, hybrid MPI/OpenMP is employed not only to maximize the total problem size that can be solved per node, but also to eventually minimize parallel scaling overhead through the best scaling combination of MPI ranks per node with OpenMP threads. We describe a vectorized version of a popcount operation to avoid serialization on intrinsic popcnt which only operates on scalar registers. Additionally we leverage SSE 4.2 string comparison instructions to determine nonzero matrix elements. By utilizing MCDRAM, we achieve excellent Sparse Matrix-Matrix multiplication performance; in particular, using blocks of 8 vectors lead to a speedup of 6.4x on KNL and 2.9x on Haswell compared to the performance of repeated SpMV's. This optimization was essential in achieving a 1.6x improvement on KNL over Haswell. C1 [Cook, Brandon; Shao, Meiyue] Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. [Maris, Pieter] Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA. [Wichmann, Nathan; Wagner, Marcus] Cray Inc, Seattle, WA USA. [O'Neill, John; Thanh Phung; Bansal, Gaurav] Intel Corp, Software & Serv Grp, Santa Clara, CA USA. RP Cook, B (reprint author), Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. EM bgcook@lbl.gov; myshao@lbl.gov NR 9 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 978-3-319-46079-6; 978-3-319-46078-9 J9 LECT NOTES COMPUT SC PY 2016 VL 9945 BP 366 EP 377 DI 10.1007/978-3-319-46079-6_26 PG 12 WC Computer Science, Information Systems; Computer Science, Theory & Methods SC Computer Science GA BG5XH UT WOS:000389802700030 ER PT S AU Malas, T Kurth, T Deslippe, J AF Malas, Tareq Kurth, Thorsten Deslippe, Jack BE Taufer, M Mohr, B Kunkel, JM TI Optimization of the Sparse Matrix-Vector Products of an IDR Krylov Iterative Solver in EMGeo for the Intel KNL Manycore Processor SO HIGH PERFORMANCE COMPUTING, ISC HIGH PERFORMANCE 2016 INTERNATIONAL WORKSHOPS SE Lecture Notes in Computer Science LA English DT Proceedings Paper CT International Supercomputing Conference (ISC High Performance) CY JUN 19-23, 2016 CL Frankfurt, GERMANY DE Intel knights landing optimization; Matrix vector product optimization; IDR Krylov solver optimization; Multiple right-hand side blocking; Spatial blocking ID ELASTIC-WAVE PROPAGATION; FOURIER DOMAIN; ARCHITECTURES AB In geophysical-imaging, medium properties can be studied by performing scattering experiments using electromagnetic or seismic waves. Quantities such as densities, elasticities, stress etc. can be obtained from fitting the observed measurements to the results predicted by a simulation. The EMGeo software performs these simulations and solves the inverse scattering problem in the Laplace-Fourier domain. In this paper, we focus on the Seismic part and forward step of the inverse scattering problem, which involves inverting a large sparse matrix. For this purpose, EMGeo uses an Induced Dimensional Reduction (IDR) Krylov subspace solver. The Sparse Matrix Vector (SpMV) product is responsible for more than half of the total runtime. We demonstrate how we use spatial and multiple Right Hand Side (RHS) blocking cache optimizations to increase arithmetic intensity and thus the performance, as SpMV product is memory bandwidth-bound. Our optimizations achieve 5.0x and 4.8x speedup in the SpMV product in Haswell and KNL processors, respectively. We also achieve 1.8x and 3.3x speedup in the overall IDR solver in Haswell and KNL processors, respectively. We also give an outlook over possible future optimizations. C1 [Malas, Tareq; Kurth, Thorsten; Deslippe, Jack] Natl Energy Res Sci Comp Ctr, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. RP Malas, T (reprint author), Natl Energy Res Sci Comp Ctr, Lawrence Berkeley Natl Lab, Berkeley, CA 94720 USA. EM tmalas@lbl.gov NR 13 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 978-3-319-46079-6; 978-3-319-46078-9 J9 LECT NOTES COMPUT SC PY 2016 VL 9945 BP 378 EP 389 DI 10.1007/978-3-319-46079-6_27 PG 12 WC Computer Science, Information Systems; Computer Science, Theory & Methods SC Computer Science GA BG5XH UT WOS:000389802700031 ER PT S AU Walden, A Khan, S Joo, B Ranjan, D Zubair, M AF Walden, Aaron Khan, Sabbir Joo, Balint Ranjan, Desh Zubair, Mohammad BE Taufer, M Mohr, B Kunkel, JM TI Optimizing a Multiple Right-Hand Side Dslash Kernel for Intel Knights Corner SO HIGH PERFORMANCE COMPUTING, ISC HIGH PERFORMANCE 2016 INTERNATIONAL WORKSHOPS SE Lecture Notes in Computer Science LA English DT Proceedings Paper CT International Supercomputing Conference (ISC High Performance) CY JUN 19-23, 2016 CL Frankfurt, GERMANY DE LQCD; Optimization; Performance; Wilson-Dslash; Code generator; Parallel programming; Vectorization; Xeon Phi Knights Corner AB There is a significant interest in the computational physics community to perform lattice quantum chromodynamics (LQCD) simulations, which can run into the trillions of operations. LQCD computations solve a sparse linear system using a Wilson Dslash kernel, which has an arithmetic intensity of 0.88-2.29. This makes Dslash memory bandwidth-bound on most architectures, including Intel Xeon Phi Knights Corner (KNC). Most research optimizing the Dslash operator has been focused on single right-hand side (SRHS) linear solvers. There is a class of LQCD computations which aims to solve systems with multiple right-hand sides (MRHS), presenting additional opportunities for data reuse and vectorization. We present two approaches to MRHS Dslash: a vector register blocking approach and one using the software package QPhiX with a custom code generator for low-level intrinsics. We observed significant speedups using our approaches, with sustained performance of over 700 GFLOPS (single precision) in one instance. We achieved up to 29% of theoretical peak performance compared to a maximum of 13% obtained by the previous SRHS method using QPhiX. C1 [Walden, Aaron; Khan, Sabbir; Ranjan, Desh; Zubair, Mohammad] Old Dominion Univ, Dept Comp Sci, Norfolk, VA 23529 USA. [Joo, Balint] Thomas Jefferson Natl Accelerator Facil, Newport News, VA 23606 USA. RP Walden, A (reprint author), Old Dominion Univ, Dept Comp Sci, Norfolk, VA 23529 USA. EM awalden@cs.odu.edu; skhan@cs.odu.edu; bjoo@jlab.org; dranjan@cs.odu.edu; zubair@cs.odu.edu NR 14 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 978-3-319-46079-6; 978-3-319-46078-9 J9 LECT NOTES COMPUT SC PY 2016 VL 9945 BP 390 EP 401 DI 10.1007/978-3-319-46079-6_28 PG 12 WC Computer Science, Information Systems; Computer Science, Theory & Methods SC Computer Science GA BG5XH UT WOS:000389802700032 ER PT S AU Deslippe, J da Jornada, FH Vigil-Fowler, D Barnes, T Wichmann, N Raman, K Sasanka, R Louie, SG AF Deslippe, Jack da Jornada, Felipe H. Vigil-Fowler, Derek Barnes, Taylor Wichmann, Nathan Raman, Karthik Sasanka, Ruchira Louie, Steven G. BE Taufer, M Mohr, B Kunkel, JM TI Optimizing Excited-State Electronic-Structure Codes for Intel Knights Landing: A Case Study on the BerkeleyGW Software SO HIGH PERFORMANCE COMPUTING, ISC HIGH PERFORMANCE 2016 INTERNATIONAL WORKSHOPS SE Lecture Notes in Computer Science LA English DT Proceedings Paper CT International Supercomputing Conference (ISC High Performance) CY JUN 19-23, 2016 CL Frankfurt, GERMANY ID QUASI-PARTICLE; BAND-GAPS; NANOSTRUCTURES; SEMICONDUCTORS; INSULATORS AB We profile and optimize calculations performed with the BerkeleyGW [2,3] code on the Xeon-Phi architecture. BerkeleyGW depends both on hand-tuned critical kernels as well as on BLAS and FFT libraries. We describe the optimization process and performance improvements achieved. We discuss a layered parallelization strategy to take advantage of vector, thread and node-level parallelism. We discuss locality changes (including the consequence of the lack of L3 cache) and effective use of the on-package high-bandwidth memory. We show preliminary results on Knights-Landing including a roofline study of code performance before and after a number of optimizations. We find that the GW method is particularly well-suited for many-core architectures due to the ability to exploit a large amount of parallelism over plane-wave components, band-pairs, and frequencies. C1 [Deslippe, Jack; Barnes, Taylor] Lawrence Berkeley Natl Lab, NERSC, Lawrence, KS USA. [da Jornada, Felipe H.; Louie, Steven G.] Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA. [da Jornada, Felipe H.; Louie, Steven G.] Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA USA. [Vigil-Fowler, Derek] Natl Renewable Energy Lab, Golden, CO USA. [Wichmann, Nathan] Cray, St Paul, MN USA. [Raman, Karthik; Sasanka, Ruchira] Intel, Hillsboro, OR USA. RP Deslippe, J (reprint author), Lawrence Berkeley Natl Lab, NERSC, Lawrence, KS USA. EM jrdeslippe@lbl.gov NR 12 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 978-3-319-46079-6; 978-3-319-46078-9 J9 LECT NOTES COMPUT SC PY 2016 VL 9945 BP 402 EP 414 DI 10.1007/978-3-319-46079-6_29 PG 13 WC Computer Science, Information Systems; Computer Science, Theory & Methods SC Computer Science GA BG5XH UT WOS:000389802700033 ER PT S AU Joo, B Kalamkar, DD Kurth, T Vaidyanathan, K Walden, A AF Joo, Balint Kalamkar, Dhiraj D. Kurth, Thorsten Vaidyanathan, Karthikeyan Walden, Aaron BE Taufer, M Mohr, B Kunkel, JM TI Optimizing Wilson-Dirac Operator and Linear Solvers for Intel (R) KNL SO HIGH PERFORMANCE COMPUTING, ISC HIGH PERFORMANCE 2016 INTERNATIONAL WORKSHOPS SE Lecture Notes in Computer Science LA English DT Proceedings Paper CT International Supercomputing Conference (ISC High Performance) CY JUN 19-23, 2016 CL Frankfurt, GERMANY ID SYSTEMS; QCD AB Lattice Quantumchromodynamics (QCD) is a powerful tool to numerically access the low energy regime of QCD in a straightforward way with quantifyable uncertainties. In this approach, QCD is discretized on a four dimensional, Euclidean space-time grid with millions of degrees of freedom. In modern lattice calculations, most of the work is still spent in solving large, sparse linear systems. This part has two challenges, i.e. optimizing the sparse matrix application as well as BLAS-like kernels used in the linear solver. We are going to present performance optimizations of the Dirac operator (dslash) with and without clover term for recent Intel (R) architectures, i.e. Haswell and Knights Landing (KNL). We were able to achieve a good fraction of peak performance for the Wilson-Dslash kernel, and Conjugate Gradients and Stabilized BiConjugate Gradients solvers. We will also present a series of experiments we performed on KNL, i.e. running MCDRAM in different modes, enabling or disabling hardware prefetching as well as using different SoA lengths. Furthermore, we will present a weak scaling study up to 16 KNL nodes. C1 [Joo, Balint] US DOE, Jefferson Lab, Newport News, VA 23606 USA. [Kalamkar, Dhiraj D.; Vaidyanathan, Karthikeyan] Intel Parallel Comp Labs, Bangalore, Karnataka, India. [Kurth, Thorsten; Walden, Aaron] Natl Energy Res Sci Comp Ctr, Berkeley, CA 94720 USA. [Walden, Aaron] Old Dominion Univ, Norfolk, VA USA. RP Joo, B (reprint author), US DOE, Jefferson Lab, Newport News, VA 23606 USA.; Vaidyanathan, K (reprint author), Intel Parallel Comp Labs, Bangalore, Karnataka, India.; Kurth, T (reprint author), Natl Energy Res Sci Comp Ctr, Berkeley, CA 94720 USA. EM bjoo@jlab.org; tkurth@lbl.gov; karthikeyan.vaidyanathan@intel.com NR 19 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 978-3-319-46079-6; 978-3-319-46078-9 J9 LECT NOTES COMPUT SC PY 2016 VL 9945 BP 415 EP 427 DI 10.1007/978-3-319-46079-6_30 PG 13 WC Computer Science, Information Systems; Computer Science, Theory & Methods SC Computer Science GA BG5XH UT WOS:000389802700034 ER PT S AU Juckeland, G Hernandez, O Jacob, AC Neilson, D Larrea, VGV Wienke, S Bobyr, A Brantley, WC Chandrasekaran, S Colgrove, M Grund, A Henschel, R Joubert, W Muller, MS Raddatz, D Shelepugin, P Whitney, B Wang, B Kumaran, K AF Juckeland, Guido Hernandez, Oscar Jacob, Arpith C. Neilson, Daniel Larrea, Veronica G. Vergara Wienke, Sandra Bobyr, Alexander Brantley, William C. Chandrasekaran, Sunita Colgrove, Mathew Grund, Alexander Henschel, Robert Joubert, Wayne Mueller, Matthias S. Raddatz, Dave Shelepugin, Pavel Whitney, Brian Wang, Bo Kumaran, Kalyan BE Taufer, M Mohr, B Kunkel, JM TI From Describing to Prescribing Parallelism: Translating the SPEC ACCEL OpenACC Suite to OpenMP Target Directives SO HIGH PERFORMANCE COMPUTING, ISC HIGH PERFORMANCE 2016 INTERNATIONAL WORKSHOPS SE Lecture Notes in Computer Science LA English DT Proceedings Paper CT International Supercomputing Conference (ISC High Performance) CY JUN 19-23, 2016 CL Frankfurt, GERMANY DE SPEC; SPEC ACCEL; OpenMP; OpenACC; Offloading AB Current and next generation HPC systems will exploit accelerators and self-hosting devices within their compute nodes to accelerate applications. This comes at a time when programmer productivity and the ability to produce portable code has been recognized as a major concern. One of the goals of OpenMP and OpenACC is to allow the user to specify parallelism via directives so that compilers can generate device specific code and optimizations. However, the challenge of porting codes becomes more complex because of the different types of parallelism and memory hierarchies available on different architectures. In this paper we discuss our experience with porting the SPEC ACCEL benchmarks from OpenACC to OpenMP 4.5 using a performance portable style that lets the compiler make platform-specific optimizations to achieve good performance on a variety of systems. The ported SPEC ACCEL OpenMP benchmarks were validated on different platforms including Xeon Phi, GPUs and CPUs. We believe that this experience can help the community and compiler vendors understand how users plan to write OpenMP 4.5 applications in a performance portable style. C1 [Juckeland, Guido; Hernandez, Oscar; Jacob, Arpith C.; Neilson, Daniel; Larrea, Veronica G. Vergara; Wienke, Sandra; Bobyr, Alexander; Brantley, William C.; Chandrasekaran, Sunita; Colgrove, Mathew; Grund, Alexander; Henschel, Robert; Joubert, Wayne; Mueller, Matthias S.; Raddatz, Dave; Shelepugin, Pavel; Whitney, Brian; Wang, Bo; Kumaran, Kalyan] SPEC HPG, Gainesville, FL 32611 USA. [Juckeland, Guido; Grund, Alexander] HZDR, Dresden, Germany. [Hernandez, Oscar; Larrea, Veronica G. Vergara; Joubert, Wayne] Oak Ridge Natl Lab, Oak Ridge, TN USA. [Jacob, Arpith C.] IBM TJ Watson Res Ctr, Yorktown Hts, NY USA. [Neilson, Daniel] IBM Corp, Markham, ON, Canada. [Wienke, Sandra; Mueller, Matthias S.; Wang, Bo] Rhein Westfal TH Aachen, Aachen, Germany. [Bobyr, Alexander; Shelepugin, Pavel] Intel, Nizhnii Novgorod, Russia. [Brantley, William C.] AMD, Austin, TX USA. [Chandrasekaran, Sunita] Univ Delaware, Newark, DE USA. [Colgrove, Mathew] NVIDIA, Santa Clara, CA USA. [Henschel, Robert] Indiana Univ, Bloomington, IN USA. [Raddatz, Dave] SGI, Milpitas, CA USA. [Whitney, Brian] Oracle, Redwood Shores, CA USA. [Kumaran, Kalyan] Argonne Natl Lab, Lemont, IL USA. RP Juckeland, G (reprint author), SPEC HPG, Gainesville, FL 32611 USA.; Juckeland, G (reprint author), HZDR, Dresden, Germany. EM info@spec.org NR 26 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 978-3-319-46079-6; 978-3-319-46078-9 J9 LECT NOTES COMPUT SC PY 2016 VL 9945 BP 470 EP 488 DI 10.1007/978-3-319-46079-6_33 PG 19 WC Computer Science, Information Systems; Computer Science, Theory & Methods SC Computer Science GA BG5XH UT WOS:000389802700038 ER PT S AU Lopez, MG Bergstrom, C Li, YW Elwasif, W Hernandez, O AF Lopez, M. Graham Bergstrom, Christopher Li, Ying Wai Elwasif, Wael Hernandez, Oscar BE Taufer, M Mohr, B Kunkel, JM TI Using C plus plus AMP to Accelerate HPC Applications on Multiple Platforms SO HIGH PERFORMANCE COMPUTING, ISC HIGH PERFORMANCE 2016 INTERNATIONAL WORKSHOPS SE Lecture Notes in Computer Science LA English DT Proceedings Paper CT International Supercomputing Conference (ISC High Performance) CY JUN 19-23, 2016 CL Frankfurt, GERMANY DE HPC; C plus plus for Accelerators; C plus plus AMP; Accelerator programming AB Many high-end HPC systems support accelerators in their compute nodes to target a variety of workloads including highperformance computing simulations, big data / data analytics codes and visualization. To program both the CPU cores and attached accelerators, users now have multiple programming models available such as CUDA, OpenMP 4, OpenACC, C++ 14, etc., but some of these models fall short in their support for C++ on accelerators because they can have difficulty supporting advanced C++ features e.g. templating, class members, loops with iterators, lambdas, deep copy, etc. Usually, they either rely on unified memory, or the programming language is not aware of accelerators (e.g. C++ 14). In this paper, we explore a base-language solution called C++ Accelerated Massive Parallelism ( AMP), which was developed by Microsoft and implemented by the PathScale ENZO compiler to program GPUs on a variety of HPC architectures including OpenPOWER and Intel Xeon. We report some prelminary in-progress results using C++ AMP to accelerate a matrix multiplication and quantum Monte Carlo application kernel, examining its expressiveness and performance using NVIDIA GPUs and the PathScale ENZO compiler. We hope that this preliminary report will provide a data point that will inform the functionality needed for future C++ standards to support accelerators with discrete memory spaces. C1 [Lopez, M. Graham; Elwasif, Wael; Hernandez, Oscar] Oak Ridge Natl Lab, Comp Sci & Math Div, Oak Ridge, TN 37831 USA. [Bergstrom, Christopher] Pathscale Inc, Wilmington, DE USA. [Li, Ying Wai] Oak Ridge Natl Lab, Natl Ctr Computat Sci, Oak Ridge, TN USA. RP Lopez, MG (reprint author), Oak Ridge Natl Lab, Comp Sci & Math Div, Oak Ridge, TN 37831 USA. EM lopezmg@ornl.gov; cbergstrom@pathscale.com; yingwaili@ornl.gov; elwasifwr@ornl.gov; oscar@ornl.gov NR 16 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 978-3-319-46079-6; 978-3-319-46078-9 J9 LECT NOTES COMPUT SC PY 2016 VL 9945 BP 563 EP 576 DI 10.1007/978-3-319-46079-6_38 PG 14 WC Computer Science, Information Systems; Computer Science, Theory & Methods SC Computer Science GA BG5XH UT WOS:000389802700043 ER PT S AU Chaimov, N Malony, A Iancu, C Ibrahim, K AF Chaimov, Nicholas Malony, Allen Iancu, Costin Ibrahim, Khaled BE Taufer, M Mohr, B Kunkel, JM TI Scaling Spark on Lustre SO HIGH PERFORMANCE COMPUTING, ISC HIGH PERFORMANCE 2016 INTERNATIONAL WORKSHOPS SE Lecture Notes in Computer Science LA English DT Proceedings Paper CT International Supercomputing Conference (ISC High Performance) CY JUN 19-23, 2016 CL Frankfurt, GERMANY DE Spark; Berkeley data analytics stack; Cray XC; Lustre; Shifter AB We report our experiences in porting and tuning the Apache Spark data analytics framework on the Cray XC30 (Edison) and XC40 (Cori) systems, installed at NERSC. We find that design decisions made in the development of Spark are based on the assumption that Spark is constrained primarily by network latency, and that disk I/O is comparatively cheap. These assumptions are not valid on Edison or Cori, which feature advanced low-latency networks but have diskless compute nodes. Lustre metadata access latency is a major bottleneck, severely constraining scalability. We characterize this problem with benchmarks run on a system with both Lustre and local disks, and show how to mitigate high metadata access latency by using per-node loopback filesystems for temporary storage. With this technique, we reduce the shuffle time and improve application scalability from O(100) to O(10, 000) cores on Cori. For shuffle-intensive machine learning workloads, we show better performance than clusters with local disks. C1 [Chaimov, Nicholas; Malony, Allen] Univ Oregon, Eugene, OR 97403 USA. [Iancu, Costin; Ibrahim, Khaled] Lawrence Berkeley Natl Lab, Berkeley, CA USA. RP Chaimov, N (reprint author), Univ Oregon, Eugene, OR 97403 USA. EM nchaimov@cs.uoregon.edu; malony@cs.uoregon.edu; cciancu@lbl.gov; kzibrahim@lbl.gov NR 11 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 978-3-319-46079-6; 978-3-319-46078-9 J9 LECT NOTES COMPUT SC PY 2016 VL 9945 BP 649 EP 659 DI 10.1007/978-3-319-46079-6_45 PG 11 WC Computer Science, Information Systems; Computer Science, Theory & Methods SC Computer Science GA BG5XH UT WOS:000389802700050 ER PT J AU Farhang-Boroujeny, B Moradi, H AF Farhang-Boroujeny, Behrouz Moradi, Hussein TI OFDM Inspired Waveforms for 5G SO IEEE COMMUNICATIONS SURVEYS AND TUTORIALS LA English DT Article DE Wireless communication; physical layer; multicarrier communication; OFDM; filter bank multicarrier ID DATA-TRANSMISSION; COGNITIVE RADIOS; MULTICARRIER; SYSTEMS; COMMUNICATION; VDSL; SYNCHRONIZATION; EQUALIZATION; ESTIMATORS; PROTOTYPE AB As the standardization activities are being formed to lay the foundation of 5G wireless networks, there is a common consensus on the need to replace the celebrated orthogonal frequency division multiplexing (OFDM) by a more effective air interface that better serves the challenging needs of 5G. To this end, in the recent past, a number of new waveforms have been introduced in the literature. Interestingly, and at the same time not surprising, these methods share a common fundamental principle with OFDM: each data packet is made up of a number of complex-valued sinusoidals (pure tones) that are modulated by the information symbols. In this tutorial article, we build a common framework based on the said OFDM principle and derive these new waveforms from this point of view. This derivation provides a new perspective that facilitates straightforward understanding of channel equalization and the application of these new waveforms to multiple-input multiple-output channels. It also facilitates derivation of new structures for more efficient synthesis/analysis of these waveforms than those that have been reported in the literature. C1 [Farhang-Boroujeny, Behrouz] Univ Utah, Elect & Comp Engn Dept, Salt Lake City, UT 84112 USA. [Moradi, Hussein] Idaho Natl Lab, Idaho Falls, ID 83415 USA. RP Farhang-Boroujeny, B (reprint author), Univ Utah, Elect & Comp Engn Dept, Salt Lake City, UT 84112 USA. EM farhang@ece.utah.edu FU Battelle Energy Alliance LLC through the U.S. Department of Energy [DE-AC07-05ID14517]; Idaho National Laboratory [INL/JOU-14-33556] FX This work was supported in part by the Battelle Energy Alliance LLC through the U.S. Department of Energy under Contract DE-AC07-05ID14517, and in part by Idaho National Laboratory under Grant INL/JOU-14-33556. The U.S. Government retains and the publisher, by accepting the article for publication, acknowledges that the U.S. Government retains a nonexclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for U.S. Government purposes. NR 86 TC 0 Z9 0 U1 0 U2 0 PU IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC PI PISCATAWAY PA 445 HOES LANE, PISCATAWAY, NJ 08855-4141 USA SN 1553-877X J9 IEEE COMMUN SURV TUT JI IEEE Commun. Surv. Tutor. PY 2016 VL 18 IS 4 BP 2474 EP 2492 DI 10.1109/COMST.2016.2565566 PG 19 WC Computer Science, Information Systems; Telecommunications SC Computer Science; Telecommunications GA ED9OS UT WOS:000389202500007 ER PT J AU Biswas, A Liu, C Monga, I Basu, K Bredel, M AF Biswas, Amitava Liu, Chen Monga, Inder Basu, Kashinath Bredel, Michael TI Special Issue on Software Defined Networks and Infrastructures, Network Function Virtualisation, Autonomous Systems and Network Management SO INTERNATIONAL JOURNAL OF COMMUNICATION NETWORKS AND DISTRIBUTED SYSTEMS LA English DT Editorial Material DE Michael Bredel is currently at California Institute of Technology and CERN; Geneve; Switzerland AB Chen Liu is employed at Utopia Compression Corp., Los Angeles, USA. Inder Monga is currently at Lawrence Berkeley National Laboratory Energy Sciences Network, Lawrence Berkley National Lab (Livermore), Berkeley, California, USA. Kashinath Basu is a Senior Lecturer in the Department of Computing and Communication Technologies at Oxford Brookes University, UK. He has over 16 years of research experience in the field of computer networking. He has published several papers in conferences and journals and has co-authored a number of books. He is actively involved in the organising and programme committees of conferences and research publications. He is frequently invited as a guest speaker in various academic and business events. He obtained both his PhD and BS in Computer Science from the Oxford Brookes University, UK. C1 [Biswas, Amitava] Cisco Syst, San Jose, CA 95134 USA. [Liu, Chen] Utopia Compress Corp, Los Angeles, CA 90064 USA. [Monga, Inder] Energy Sci Network, Lawrence Berkeley Natl Lab, Lawrence Berkley Natl Lab Livermore, 1 Cyclotron Rd,Mail Stop 50A-3111, Berkeley, CA 94720 USA. [Monga, Inder; Basu, Kashinath] Oxford Brookes Univ, Dept Comp Sci, Oxford OX3 0BP, England. [Bredel, Michael] CALTECH, Pasadena, CA 91125 USA. [Bredel, Michael] CERN, CH-1211 Geneva 23, Switzerland. RP Biswas, A (reprint author), Cisco Syst, San Jose, CA 95134 USA. EM amitavabiswas@ieee.org; chenliu419@gmail.com; imonga@es.net; kbasu@brookes.ac.uk; michael.bredel@cern.ch NR 0 TC 0 Z9 0 U1 0 U2 0 PU INDERSCIENCE ENTERPRISES LTD PI GENEVA PA WORLD TRADE CENTER BLDG, 29 ROUTE DE PRE-BOIS, CASE POSTALE 856, CH-1215 GENEVA, SWITZERLAND SN 1754-3916 EI 1754-3924 J9 INT J COMMUN NETW DI JI Int. J. Commun. Netw. Distrib. Syst. PY 2016 VL 17 IS 3 SI SI BP 203 EP 205 PG 3 WC Computer Science, Information Systems SC Computer Science GA EE7MX UT WOS:000389803900001 ER PT J AU Hoegg, ED Barinaga, CJ Hager, GJ Hart, GL Koppenaal, DW Marcus, RK AF Hoegg, Edward D. Barinaga, Charles J. Hager, George J. Hart, Garret L. Koppenaal, David W. Marcus, R. Kenneth TI Isotope ratio characteristics and sensitivity for uranium determinations using a liquid sampling-atmospheric pressure glow discharge ion source coupled to an Orbitrap mass analyzer SO JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY LA English DT Article ID APGD IONIZATION SOURCE; ATOMIC EMISSION-SPECTROMETRY; OPTICAL-EMISSION; REACTION CELLS; PLASMA SOURCE; ELECTROLYTE; COLLISION; MINIATURE; MS AB The continued development of the liquid sampling-atmospheric pressure glow discharge (LS-APGD) microplasma ion source, combined with Orbitrap (TM) mass spectrometry technology is described. Improved characterization of this new system for performing precise and accurate isotope ratio (IR) determinations is demonstrated. The instrumental parameters evaluated include the number of microscans and scans making up a data acquisition set, uranium concentration/signal level, sample make-up, and Fourier transform digitization window. A limiting precision of 0.41% relative standard deviation (RSD) can be achieved for a single determination with natural uranium, with a variability of 1.63% RSD over 10 separate analytical measurements, reflective of instrument drift. A study of matrix effects on IR measurements of U is also presented, highlighting the importance of pre-mass selection before injection into the Orbitrap MS. Dynamic range is demonstrated with response curves covering 4 orders of magnitude of concentration (similar to 1-1000 ng mL(-1)) and having an R-2 value of >0.99. These results demonstrate the very promising pairing of the LS-APGD ionization source and the Orbitrap MS, pointing as well to definitive paths forward to better utilize both components in high quality isotope ratio mass spectrometry (IRMS). C1 [Hoegg, Edward D.; Marcus, R. Kenneth] Clemson Univ, Dept Chem, Clemson, SC 29634 USA. [Hoegg, Edward D.; Barinaga, Charles J.; Hager, George J.; Hart, Garret L.; Koppenaal, David W.] Pacific Northwest Natl Lab, 902 Battelle Blvd, Richland, WA 99354 USA. RP Marcus, RK (reprint author), Clemson Univ, Dept Chem, Clemson, SC 29634 USA. EM marcusr@clemson.edu FU Next Generation Safeguards Initiative of the U.S. National Nuclear Security Administration's Office of Nonproliferation and Arms Control within the U.S. Department of Energy [NA-24, DE-AC05-76RL01830]; U.S. Department of Energy's Office of Biological and Environmental Research (BER) program; U.S. National Nuclear Security Administration's (NNSA) Office of Nonproliferation and Arms Control and the Human Capital Development Program; Defense Threat Reduction Agency [HDTRA1-14-1-0010] FX This research was supported in part by the Next Generation Safeguards Initiative of the U.S. National Nuclear Security Administration's Office of Nonproliferation and Arms Control (NA-24) within the U.S. Department of Energy under Contract DE-AC05-76RL01830. The Exactive MS capability was provided by the W. R. Wiley Environmental Molecular Science Laboratory (EMSL), a national scientific user facility sponsored by the U.S. Department of Energy's Office of Biological and Environmental Research (BER) program. Funding for this work has been provided by the U.S. National Nuclear Security Administration's (NNSA) Office of Nonproliferation and Arms Control and the Human Capital Development Program. Support for Clemson University activities from the Defense Threat Reduction Agency, Basic Research Award #HDTRA1-14-1-0010 is also acknowledged. NR 37 TC 0 Z9 0 U1 5 U2 5 PU ROYAL SOC CHEMISTRY PI CAMBRIDGE PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND SN 0267-9477 EI 1364-5544 J9 J ANAL ATOM SPECTROM JI J. Anal. At. Spectrom. PY 2016 VL 31 IS 12 BP 2355 EP 2362 DI 10.1039/c6ja00163g PG 8 WC Chemistry, Analytical; Spectroscopy SC Chemistry; Spectroscopy GA EE1KS UT WOS:000389341000001 ER PT S AU Walba, D Zhu, C Hexemer, A Yoon, DK Kim, H Korblova, ED Chen, D Tuchband, M Clark, N AF Walba, David Zhu, Chenhui Hexemer, Alexander Yoon, Dong Ki Kim, Hanim Korblova, Eva D. Chen, Dong Tuchband, Michael Clark, Noel BE Khoo, IC TI Host-guest chemistry in the helical nanofilament phase (Conference Presentation) SO LIQUID CRYSTALS XX SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Liquid Crystals XX CY AUG 28-30, 2016 CL San Diego, CA SP SPIE AB The helical nanofilament (HNF) liquid crystal (LC) phase of bent core mesogens (also commonly termed the B4 phase) is among the most unique and exotic LC phases known. The structure involves a spontaneous hierarchical self assembly of molecules leading to a supramolecular twisted rod structure with a square cross section approximately 30 nm on a side, with the length of the filaments unconstrained. Based upon solid state NMR data, we have proposed that the helical nanofilaments actually represents an unusual assembly of organic crystalline nanoparticles, which form an LC phase, in the case of NOBOW existing in the temperature range between about 150 degrees C and 110 degrees C, which becomes a glass at temperatures below 110 degrees C. That is, the HMF phase is not a typical molecular LC, but an LC of nanocrystals. Descriptions of the structure of these nanoparticles, their LC phases, and approaches to alignment will be given. Also, the fascinating and potentially useful behavior of the HNF phase as a host for other materials (LC and non-LC) in nanostructured composites will be presented. C1 [Walba, David; Korblova, Eva D.; Tuchband, Michael; Clark, Noel] Univ Colorado Boulder, Boulder, CO 80309 USA. [Zhu, Chenhui; Hexemer, Alexander] Lawrence Berkeley Natl Lab, Berkeley, CA USA. [Chen, Dong] Harvard Univ, Cambridge, MA USA. RP Walba, D (reprint author), Univ Colorado Boulder, Boulder, CO 80309 USA. NR 0 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 978-1-5106-0271-7; 978-1-5106-0272-4 J9 PROC SPIE PY 2016 VL 9940 AR UNSP 99400Y DI 10.1117/12.2236100 PG 1 WC Optics; Physics, Applied; Physics, Condensed Matter SC Optics; Physics GA BG5QS UT WOS:000389681100028 ER PT B AU Miller, JJ Shafer, DS Papelis, C Refosco, CA Krzyaniak, NA AF Miller, Julianne J. Shafer, David S. Papelis, Charalambos Refosco, Craig A. Krzyaniak, Nathan A. BE McDonald, EV Bullard, T TI High Density Metal Contaminant Transport in Arid Region Ephemeral Channels SO MILITARY GEOSCIENCES AND DESERT WARFARE: PAST LESSONS AND MODERN CHALLENGES SE Advances in Military Geosciences LA English DT Proceedings Paper CT 9th International Conference on Military Geosciences (ICMG) CY JUN 20-24, 2011 CL Las Vegas, NV DE Depleted uranium; Contaminant transport; Hydraulic modeling; Sediment transport; FLO-2D; Arid environment; Alluvial fan; Radiological risk; Flooding; Fluvial transport AB Depleted uranium (DU) particles and DU oxides are present at military test and training ranges in the southwestern United States (U.S.) because of its use in military munitions and for armored shielding. Also, since approximately 1990, DU particles and DU oxides also occur in similar arid region military theatres throughout the world. At a study area in the northern Mojave Desert in the U.S., soil sampling and ground and aerial gamma-ray screening had suggested that DU particles and DU oxides had not migrated by surface water transport significant distances from their original location near a target area. However, no predictive models had been developed to forecast how far the particles would move with time. A flow and transport model was developed using the FLO-2D model to study the unconfined flow conditions over the complex alluvial fan topography in the study area watershed. The Zeller-Fullerton sediment transport equation was selected because of its ability to model sediment transport when a substantial portion is expected to be by bedload, an assumption warranted because of the density of DU and DU oxides (19.20 and 4.80 g/cm(3), respectively). Modeling results indicate that a local 100-year storm could cause transport of both DU particles and DU oxides, primarily along well-defined channels, although transport could occur across alluvial surfaces as well. However, the transport distance of DU particles and DU oxides was limited to approximately 120 and 150 m, respectively. The modeling approach used in this study could be used as a predictive tool for transport on military testing ranges to address environmental compliance issues and protect military personnel during training exercises from potential unnecessary exposure by better delineating the eventual area where DU particles and DU oxides may occur. The predictive modeling also could be applied in military theatres where DU munitions were used to better understand the dispersal of DU particles and DU oxides over time by fluvial transport to help protect military and civilian populations from coming in contact with the high density metals. C1 [Miller, Julianne J.] Desert Res Inst, Div Hydrol Sci, 755 East Flamingo Rd, Las Vegas, NV 89119 USA. [Shafer, David S.] US DOE, Off Legacy Management, Westminster, CO 80221 USA. [Papelis, Charalambos] New Mexico State Univ, Dept Civil Engn, POB 30001, Las Cruces, NM 88003 USA. [Refosco, Craig A.] Air Force Med Support Agcy AFMSA SG3PB, Radiat Protect Div, 7700 Arlington Blvd,Suite 5158, Falls Church, VA 22042 USA. [Krzyaniak, Nathan A.] US Air Force, 2510 Fifth St,Bldg 840, Wright Patterson AFB, OH 45433 USA. RP Miller, JJ (reprint author), Desert Res Inst, Div Hydrol Sci, 755 East Flamingo Rd, Las Vegas, NV 89119 USA. EM julie.miller@dri.edu; david.shafer@lm.doe.gov; lpapelis@nmsu.edu; craig.a.refosco.ctr@mail.mil; nathan.krzyaniak.1@us.af.mil NR 13 TC 0 Z9 0 U1 0 U2 0 PU SPRINGER PI NEW YORK PA 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES BN 978-1-4939-3429-4; 978-1-4939-3427-0 J9 ADV MIL GEOSCI PY 2016 BP 139 EP 151 DI 10.1007/978-1-4939-3429-4_10 PG 13 WC Geography; Geosciences, Multidisciplinary; History SC Geography; Geology; History GA BG5YC UT WOS:000389807200010 ER PT S AU Bonney, MS Kammer, DC Brake, MRW AF Bonney, Matthew S. Kammer, Daniel C. Brake, Matthew R. W. BE Atamturktur, S Schoenherr, T Moaveni, B Papadimitriou, C TI Determining Model Form Uncertainty of Reduced Order Models SO MODEL VALIDATION AND UNCERTAINTY QUANTIFICATION, VOL 3 SE Conference Proceedings of the Society for Experimental Mechanics Series LA English DT Proceedings Paper CT 34th IMAC Conference and Exposition on Structural Dynamics CY JAN 25-28, 2016 CL Orlando, FL SP Soc Expt Mech, IMAC DE Model-form uncertainty; Uncertainty quantification; Maximum entropy; Sub-structuring AB The quantification of model form uncertainty is very important for engineers to understand when using a reduced order model. This quantification requires multiple numerical simulations which can be computationally expensive. Different sampling techniques, including Monte Carlo and Latin Hypercube, are explored while using the maximum entropy method to quantify the uncertainty. The maximum entropy method implements random matrices that maintain essential properties. This is explored on a planar frame using different types of substructure representations, such as Craig-Bampton. Along with the model form uncertainty of the substructure representation, the effect of component mode synthesis for each type of substructure representation on the model form uncertainty is studied. C1 [Bonney, Matthew S.] Univ Wisconsin, Madison, WI 53706 USA. [Kammer, Daniel C.] Univ Wisconsin, Engn Phys, Madison, WI USA. [Brake, Matthew R. W.] Sandia Natl Labs, Albuquerque, NM USA. RP Bonney, MS (reprint author), Univ Wisconsin, Madison, WI 53706 USA. EM msbonney@wisc.edu; kammer@engr.wisc.edu; mrbrake@sandia.gov NR 7 TC 0 Z9 0 U1 0 U2 0 PU SPRINGER INT PUBLISHING AG PI CHAM PA GEWERBESTRASSE 11, CHAM, CH-6330, SWITZERLAND SN 2191-5644 BN 978-3-319-29754-5; 978-3-319-29753-8 J9 C PROC SOC EXP MECH PY 2016 BP 51 EP 57 DI 10.1007/978-3-319-29754-5_5 PG 7 WC Engineering, Mechanical SC Engineering GA BG5WP UT WOS:000389798700005 ER PT S AU Hemez, F Van Buren, K AF Hemez, Francois Van Buren, Kendra BE Atamturktur, S Schoenherr, T Moaveni, B Papadimitriou, C TI Designing a Mechanical Latch for Robust Performance SO MODEL VALIDATION AND UNCERTAINTY QUANTIFICATION, VOL 3 SE Conference Proceedings of the Society for Experimental Mechanics Series LA English DT Proceedings Paper CT 34th IMAC Conference and Exposition on Structural Dynamics CY JAN 25-28, 2016 CL Orlando, FL SP Soc Expt Mech, IMAC DE Robust design; Mechanical latch; Finite element analysis; Uncertainty quantification ID DYNAMICS AB Advances in computational sciences in the past three decades, such as those embodied by the finite element method, have made it possible to perform design and analysis using numerical simulations. While they offer undeniable benefits for rapid prototyping and can shorten the design-test-optimize cycle, numerical simulations also introduce assumptions and various sources of uncertainty. Examples are modeling assumptions proposed to represent a nonlinear material behavior, energy dissipation mechanisms and environmental conditions, in addition to numerical effects such as truncation error, mesh adaptation and artificial dissipation. Given these sources of uncertainty, what is the best way to support a design decision using simulations? We propose that an effective simulation-based design hinges on the ability to establish the robustness of its performance to assumptions and sources of uncertainty. Robustness means that exploring the uncertainty space that characterizes the simulation should not violate the performance requirement. The theory of information-gap ("info-gap") for decision-making under severe uncertainty is applied to assess the robustness of two competing designs. The application is the dynamic stress performance of a mechanical latch for a consumer electronics product. The results are that the variant design only yields 10% improvement in robustness to uncertainty while requiring 44% more material for manufacturing. The analysis provides a rigorous rationale to decide that the variant design is not viable. C1 [Hemez, Francois] Los Alamos Natl Lab, XTD IDA, Mail Stop T087, Los Alamos, NM 87545 USA. [Van Buren, Kendra] Los Alamos Natl Lab, XCP-8,Mail Stop F644, Los Alamos, NM 87545 USA. RP Hemez, F (reprint author), Los Alamos Natl Lab, XTD IDA, Mail Stop T087, Los Alamos, NM 87545 USA. EM hemez@lanl.gov; klvan@lanl.gov OI Hemez, Francois/0000-0002-5319-4078; Van Buren, Kendra/0000-0002-0495-2354 NR 7 TC 0 Z9 0 U1 0 U2 0 PU SPRINGER INT PUBLISHING AG PI CHAM PA GEWERBESTRASSE 11, CHAM, CH-6330, SWITZERLAND SN 2191-5644 BN 978-3-319-29754-5; 978-3-319-29753-8 J9 C PROC SOC EXP MECH PY 2016 BP 193 EP 203 DI 10.1007/978-3-319-29754-5_19 PG 11 WC Engineering, Mechanical SC Engineering GA BG5WP UT WOS:000389798700019 ER PT S AU Moya, AC Harvie, JM Starr, MJ AF Moya, Adam C. Harvie, Julie M. Starr, Mike J. BE Atamturktur, S Schoenherr, T Moaveni, B Papadimitriou, C TI The Challenge of Dynamic Similarity Assessment SO MODEL VALIDATION AND UNCERTAINTY QUANTIFICATION, VOL 3 SE Conference Proceedings of the Society for Experimental Mechanics Series LA English DT Proceedings Paper CT 34th IMAC Conference and Exposition on Structural Dynamics CY JAN 25-28, 2016 CL Orlando, FL SP Soc Expt Mech, IMAC DE Modal testing; Correlation; Frequency response functions; Similarity AB Throughout the development cycle of structural components or assemblies that require new and unproven manufacturing techniques, the issue of unit to unit variability inevitably arises. The challenge of defining dynamic similarity between units is a problem that is often overlooked or forgotten, but can be very important depending on the functional criteria of the final product. This work aims to provide some guidance on the approach to such a problem, utilizing different methodologies from the modal and vibration testing community. Expanding on previous efforts, a non-intrusive dynamic characterization test is defined to assess similarity on an assembly that is currently being developed. As the assembly is qualified through various test units, the same data sets are taken to build a database of "similarity" data. The work presented here will describe the challenges observed with defining similarity metrics on a multi-body structure with a limited quantity of test units. Also, two statistical characterizations of dynamic FRFs are presented from which one may choose criterion based on some judgment to establish whether units are in or out of family. The methods may be used when the "intended purpose" or "functional criteria" are unknown. C1 [Moya, Adam C.] Sandia Natl Labs, NDE, Expt Mech, POB 5800 MS 0557, Albuquerque, NM 87185 USA. [Moya, Adam C.] Sandia Natl Labs, Model Validat Dept, POB 5800 MS 0557, Albuquerque, NM 87185 USA. [Harvie, Julie M.; Starr, Mike J.] Sandia Natl Labs, Program & Test Integrat Dept, POB 5800 MS 0557, Albuquerque, NM 87185 USA. RP Moya, AC (reprint author), Sandia Natl Labs, NDE, Expt Mech, POB 5800 MS 0557, Albuquerque, NM 87185 USA.; Moya, AC (reprint author), Sandia Natl Labs, Model Validat Dept, POB 5800 MS 0557, Albuquerque, NM 87185 USA. EM acmoya@sandia.gov; jharvie@sandia.gov; mjstarr@sandia.gov NR 6 TC 0 Z9 0 U1 0 U2 0 PU SPRINGER INT PUBLISHING AG PI CHAM PA GEWERBESTRASSE 11, CHAM, CH-6330, SWITZERLAND SN 2191-5644 BN 978-3-319-29754-5; 978-3-319-29753-8 J9 C PROC SOC EXP MECH PY 2016 BP 235 EP 241 DI 10.1007/978-3-319-29754-5_23 PG 7 WC Engineering, Mechanical SC Engineering GA BG5WP UT WOS:000389798700023 ER PT J AU Felberg, LE Doshi, A Hura, GL Sly, J Piunova, VA Swope, WC Rice, JE Miller, R Head-Gordon, T AF Felberg, Lisa E. Doshi, Anjali Hura, Greg L. Sly, Joseph Piunova, Victoria A. Swope, William C. Rice, Julia E. Miller, Robert Head-Gordon, Teresa TI Structural transition of nanogel star polymers with pH by controlling PEGMA interactions with acid or base copolymers SO MOLECULAR PHYSICS LA English DT Article DE Star polymers; PEGMA; polyelectrolyte ID RING-OPENING POLYMERIZATION; X-RAY-SCATTERING; POLY(METHACRYLIC ACID); GUEST MOLECULES; CORE; COMPLEXATION; METHACRYLATE; TRANSPORT; LIBRARIES; MIXTURES AB We use small angle X-ray scattering (SAXS) to characterise a class of star diblock polymers with a nanogel core on which the outer block arms are comprised of random copolymers of temperature sensitive PEGMA with pH sensitive basic (PDMAEMA) and acidic (PMAA) monomers. The acquired SAXS data show that many of the nanogel star polymers undergo a sharp structural transition over a narrow range of pH, but with unexpectedly large shifts in the apparent pKa with respect to that of the acidic or basic monomer unit, the linear polymer form or even an alternate star polymer with a tightly cross-linked core chemistry. We have demonstrated a distinct and quantifiable structural response for the nanogel star copolymers by altering the core or by pairing the monomers PDMAEMA-PEGMA and PMAA-PEGMA to achieve structural transitions that have typically been observed in stars through changes in arm length and number. C1 [Felberg, Lisa E.; Head-Gordon, Teresa] Univ Calif Berkeley, Dept Chem & Biomol Engn, Berkeley, CA 94720 USA. [Doshi, Anjali; Head-Gordon, Teresa] Univ Calif Berkeley, Dept Bioengn, Berkeley, CA 94720 USA. [Head-Gordon, Teresa] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA. [Head-Gordon, Teresa] Lawrence Berkeley Natl Labs, Div Chem Sci, Berkeley, CA 94720 USA. [Hura, Greg L.] Lawrence Berkeley Natl Labs, Phys Biosci Div, Berkeley, CA USA. [Sly, Joseph; Piunova, Victoria A.; Swope, William C.; Rice, Julia E.; Miller, Robert] IBM Res, IBM Almaden Res Ctr, San Jose, CA USA. RP Head-Gordon, T (reprint author), Univ Calif Berkeley, Dept Chem & Biomol Engn, Berkeley, CA 94720 USA.; Head-Gordon, T (reprint author), Univ Calif Berkeley, Dept Bioengn, Berkeley, CA 94720 USA.; Head-Gordon, T (reprint author), Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA.; Head-Gordon, T (reprint author), Lawrence Berkeley Natl Labs, Div Chem Sci, Berkeley, CA 94720 USA. EM thg@berkeley.edu FU U.S. Department of Energy [DE-AC02-05CH11231]; National Science Foundation Graduate Research Fellowship [DGE 1106400]; Amgen scholars programme; Lawrence Berkeley National Laboratory [DE-AC02-05CH11231]; Integrated Diffraction Analysis Technologies (IDAT) programme - DOE Office of Biological and Environmental Research [DE-AC02-05CH11231]; National Institute of Health Project MINOS [R01GM105404]; NSF [DMR-0520547] FX U.S. Department of Energy [contract number DE-AC02-05CH11231]; National Science Foundation Graduate Research Fellowship [grant number DGE 1106400]; Amgen scholars programme; Lawrence Berkeley National Laboratory [contract number DE-AC02-05CH11231]; Integrated Diffraction Analysis Technologies (IDAT) programme supported by DOE Office of Biological and Environmental Research [contract number DE-AC02-05CH11231]; National Institute of Health Project MINOS [grant number R01GM105404]; NSF [award number DMR-0520547]. NR 43 TC 0 Z9 0 U1 1 U2 1 PU TAYLOR & FRANCIS LTD PI ABINGDON PA 2-4 PARK SQUARE, MILTON PARK, ABINGDON OR14 4RN, OXON, ENGLAND SN 0026-8976 EI 1362-3028 J9 MOL PHYS JI Mol. Phys. PY 2016 VL 114 IS 21 BP 3221 EP 3231 DI 10.1080/00268976.2016.1224942 PG 11 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA EE5LK UT WOS:000389648800014 ER PT J AU Todorov, T Gunawan, O Guha, S AF Todorov, T. Gunawan, O. Guha, S. TI A road towards 25% efficiency and beyond: perovskite tandem solar cells SO MOLECULAR SYSTEMS DESIGN & ENGINEERING LA English DT Review ID POWER CONVERSION EFFICIENCY; DETAILED BALANCE LIMIT; BAND-GAP; TRANSPARENT; DEGRADATION; ELECTRODES; STABILITY; SILICON AB For decades, the appealing potential of tandem solar cells for efficiencies beyond the single-junction Shockley-Queisser limit has led researchers to develop thin film tandem solutions for high performance low cost solar cells. Perovskite solar cells have recently emerged as a promising candidate for photovoltaics. In addition to ease of fabrication and good efficiencies, a particularly attractive feature is their tunable band gap between 1.48 and 2.3 eV that enables symbiosis with other solar cells in tandem device configurations. The low-temperature processing conditions of perovskites make it possible to monolithically integrate them as the top component of tandem structures without damaging the bottom cell. Early experimental results and modelling indicate that efficiencies beyond 25% are within reach. Optimization and solving perovskite stability limitations could result in a commercially viable technology. We review recent developments and insights in the field. C1 [Todorov, T.; Gunawan, O.] IBM TJ Watson Res Ctr, POB 218, Yorktown Hts, NY 10598 USA. [Guha, S.] Argonne Natl Labs, CNM, Argonne, IL 60439 USA. [Guha, S.] Univ Chicago, Inst Mol Engn, Chicago, IL 60615 USA. RP Todorov, T (reprint author), IBM TJ Watson Res Ctr, POB 218, Yorktown Hts, NY 10598 USA. EM tktodoro@us.ibm.com NR 47 TC 3 Z9 3 U1 20 U2 20 PU ROYAL SOC CHEMISTRY PI CAMBRIDGE PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND SN 2058-9689 J9 MOL SYST DES ENG JI Mol. Syst. Des. Eng. PY 2016 VL 1 IS 4 BP 370 EP 376 DI 10.1039/c6me00041j PG 7 WC Engineering, Chemical SC Engineering GA EE7MW UT WOS:000389803800002 ER PT J AU Pepe, G Cole, JM Waddell, PG Griffiths, JRD AF Pepe, Giulio Cole, Jacqueline M. Waddell, Paul G. Griffiths, Joseph R. D. TI Molecular engineering of fluorescein dyes as complementary absorbers in dye co-sensitized solar cells SO MOLECULAR SYSTEMS DESIGN & ENGINEERING LA English DT Article ID DESIGN RULES; EFFICIENCY; COSENSITIZATION; CONVERSION; ENERGIES; WINDOWS AB Fluorescein dye derivatives exhibit extended optical absorption up to 500 nm, rendering these compounds suitable as co-absorbers in dye-sensitized solar cells (DSCs). A molecular engineering approach is presented, which embraces this intrinsic optical attribute of fluoresceins, while modifying the dye chemistry to enhance their light harvesting efficiency, in order to effectively tailor them for DSC applications. This approach first realizes relationships between the molecular structure and the optoelectronic properties for a series of five a priori known (parent) fluorescein dyes: 5-carboxyfluorescein (1), a mixture of m-carboxyfluorescein where m = 5 or 6 (2), 5-carboxyfluorescein diacetate (3), 6-carboxyfluorescein diacetate (4), a mixture of n-carboxy-2',7'-dichlorofluorescein diacetate where n = 5 or 6 (5). The first step in this approach combines, where available, experimental and computational methods so that electronic structure calculations can also be validated for representative fluorescein dyes. Such calculations can then be used reliably to predict the structure and properties of fluorescein dyes for cases where experimental data are lacking. Structure-function relationships established from this initial step inform the selection of parent dye 1, which is taken forward to the second step in molecular engineering: in silico chemical derivation to re-functionalize 1 for DSC applications. For this purpose, computational calculations are used to extend the charge conjugation in 1 between its donor and acceptor moieties. These structural modifications result in a bathochromic shift of the lowest excitation by similar to 1.3-1.9 eV (100-170 nm), making the dye optically absorb in the visible region. Further calculations on dye molecules adsorbed onto the surface of a TiO2 cluster are used to investigate the dye sensitization behavior via dye adsorption energies and anchoring modes. The results of this theoretical investigation lead to two molecularly engineered fluoresceins being proposed to act as co-sensitizers together with a rhodamine dye. This combination of three dyes ensures chemical compatibility, panchromatic absorption, and restores optical absorption dipping otherwise observed in a DSC device at similar to 350-400 nm owing to the I-/I-3(-) electrolyte. Overall, the results of this study demonstrate that molecular engineering can be used to identify suitable chemical modifications for organic dyes with improved light harvesting properties for photovoltaic applications. C1 [Pepe, Giulio; Cole, Jacqueline M.; Waddell, Paul G.; Griffiths, Joseph R. D.] Univ Cambridge, Cavendish Lab, JJ Thomson Ave, Cambridge CB3 0HE, England. [Cole, Jacqueline M.] STFC Rutherford Appleton Lab, ISIS Neutron & Muon Source, Harwell Sci & Innovat Campus, Didcot OX11 0QX, Oxon, England. [Cole, Jacqueline M.] Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA. [Cole, Jacqueline M.] Univ Cambridge, Dept Chem Engn & Biotechnol, Charles Babbage Rd, Cambridge CB3 0FS, England. [Waddell, Paul G.] Australian Nucl Sci & Technol Org, Lucas Heights, NSW 2234, Australia. [Waddell, Paul G.] Newcastle Univ, Sch Chem, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England. RP Cole, JM (reprint author), Univ Cambridge, Cavendish Lab, JJ Thomson Ave, Cambridge CB3 0HE, England.; Cole, JM (reprint author), STFC Rutherford Appleton Lab, ISIS Neutron & Muon Source, Harwell Sci & Innovat Campus, Didcot OX11 0QX, Oxon, England.; Cole, JM (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA.; Cole, JM (reprint author), Univ Cambridge, Dept Chem Engn & Biotechnol, Charles Babbage Rd, Cambridge CB3 0FS, England. EM jmc61@cam.ac.uk RI Cole, Jacqueline/C-5991-2008 NR 45 TC 1 Z9 1 U1 3 U2 3 PU ROYAL SOC CHEMISTRY PI CAMBRIDGE PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND SN 2058-9689 J9 MOL SYST DES ENG JI Mol. Syst. Des. Eng. PY 2016 VL 1 IS 4 BP 402 EP 415 DI 10.1039/c6me00075d PG 14 WC Engineering, Chemical SC Engineering GA EE7MW UT WOS:000389803800006 ER PT J AU Pepe, G Cole, JM Waddell, PG Perry, JI AF Pepe, Giulio Cole, Jacqueline M. Waddell, Paul G. Perry, James I. TI Rationalizing the suitability of rhodamines as chromophores in dye-sensitized solar cells: a systematic molecular design study SO MOLECULAR SYSTEMS DESIGN & ENGINEERING LA English DT Article ID FREE ORGANIC-DYES; STABILIZATION ENERGY; EFFICIENCY; COSENSITIZATION; WINDOWS; MODEL; RULES AB Rhodamines are chromophores that are employed in many dye applications. Their strong optical absorption in the visible region of the electromagnetic spectrum renders them attractive dye candidates for dye-sensitized solar cells (DSCs). However, they have not yet been systematically tested in DSCs as single-or co-sensitizers. Recent advances in concerted experimental and computational workflows involving molecular design protocols can afford a better understanding of the molecular origins of the optoelectronic properties in these sensitizers. Herein, we examine the suitability of rhodamines R560 (1), R575 (2), R590 (3), R610 (4), R620 (5), R640 (6), and R3B (7) as chromophores in co-sensitized DSCs. Our study follows a stepwise approach. Initially, structural and optical properties of the dyes are investigated by experimental and computational methods to reveal structure-property relationships and other useful features for DSC applications. Subsequently, 1-7 are investigated at the dye center dot center dot center dot TiO2 interface, both by calculations of dye-adsorption onto the surface of a modeled (TiO2) 9 cluster, and by experimental studies of dye-adsorption on TiO2. For that purpose, a selection of rhodamine dyes are paired together, (1 and 5) and (1 and 7), for co-sensitization, among which 5 is also co-adsorbed with a fluorescein dye in order to explore chemical compatibility factors. The best dye candidates are identified from the findings of these adsorption studies in terms of dye aggregation, anchoring modes, and panchromatic response. Despite their promising dye. TiO2 adsorption and optical prospects, our results show that rhodamines lack a suitable intramolecular charge transfer pathway for dye-to-TiO2 electron injection to occur, thus precluding their photovoltaic function as DSC dyes. Our results are then assessed against ostensibly disparate reports of rhodamines performing successfully in DSC devices; this comparison necessitated the internal reproduction of previously reported co-sensitization experiments on 2 with the industrial standard reference dye, N3. We achieve reconciliation between our results and those in the literature by reasoning that while rhodamines cannot deliver photovoltaic function in DSCs in their own right, they can either act to facilitate or deplete the photovoltaic output of a DSC indirectly by affecting the TiO2 adsorption prospects of a photovoltaic-active dye with which a rhodamine is co-sensitized. C1 [Pepe, Giulio; Cole, Jacqueline M.; Waddell, Paul G.; Perry, James I.] Univ Cambridge, Dept Phys, Cavendish Lab, JJ Thomson Ave, Cambridge CB3 0HE, England. [Cole, Jacqueline M.] STFC Rutherford Appleton Lab, ISIS Neutron & Muon Source, Harwell Sci & Innovat Campus, Didcot OX11 0QX, Oxon, England. [Cole, Jacqueline M.] Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA. [Cole, Jacqueline M.] Univ Cambridge, Dept Chem Engn & Biotechnol, Charles Babbage Rd, Cambridge CB3 0FS, England. [Waddell, Paul G.] Australian Nucl Sci & Technol Org, Lucas Heights, NSW 2234, Australia. [Waddell, Paul G.] Newcastle Univ, Sch Chem, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, England. RP Cole, JM (reprint author), Univ Cambridge, Dept Phys, Cavendish Lab, JJ Thomson Ave, Cambridge CB3 0HE, England.; Cole, JM (reprint author), STFC Rutherford Appleton Lab, ISIS Neutron & Muon Source, Harwell Sci & Innovat Campus, Didcot OX11 0QX, Oxon, England.; Cole, JM (reprint author), Argonne Natl Lab, 9700 S Cass Ave, Argonne, IL 60439 USA.; Cole, JM (reprint author), Univ Cambridge, Dept Chem Engn & Biotechnol, Charles Babbage Rd, Cambridge CB3 0FS, England. EM jmc61@cam.ac.uk RI Cole, Jacqueline/C-5991-2008 NR 59 TC 0 Z9 0 U1 1 U2 1 PU ROYAL SOC CHEMISTRY PI CAMBRIDGE PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND SN 2058-9689 J9 MOL SYST DES ENG JI Mol. Syst. Des. Eng. PY 2016 VL 1 IS 4 BP 416 EP 435 DI 10.1039/c6me00076b PG 20 WC Engineering, Chemical SC Engineering GA EE7MW UT WOS:000389803800007 ER PT J AU Shi, JL Wu, JH Zhao, XJ Xue, XL Gao, YF Guo, ZX Li, SF AF Shi, J. L. Wu, J. H. Zhao, X. J. Xue, X. L. Gao, Y. F. Guo, Z. X. Li, S. F. TI Substrate co-doping modulates electronic metal-support interactions and significantly enhances single-atom catalysis SO NANOSCALE LA English DT Article ID AU NANOPARTICLES; GOLD CLUSTERS; OXIDATION; SURFACES; ACTIVATION; TIO2(110); TITANIA; ORIGIN; WATER; TIO2 AB Transitional metal nanoparticles or atoms deposited on appropriate substrates can lead to highly economical, efficient, and selective catalysis. One of the greatest challenges is to control the electronic metal-support interactions (EMSI) between the supported metal atoms and the substrate so as to optimize their catalytic performance. Here, from first-principles calculations, we show that an otherwise inactive Pd single adatom on TiO2(110) can be tuned into a highly effective catalyst, e.g. for O-2 adsorption and CO oxidation, by purposefully selected metal-nonmetal co-dopant pairs in the substrate. Such an effect is proved here to result unambiguously from a significantly enhanced EMSI. A nearly linear correlation is noted between the strength of the EMSI and the activation of the adsorbed O-2 molecule, as well as the energy barrier for CO oxidation. Particularly, the enhanced EMSI shifts the frontier orbital of the deposited Pd atom upward and largely enhances the hybridization and charge transfer between the O-2 molecule and the Pd atom. Upon co-doping, the activation barrier for CO oxidation on the Pd monomer is also reduced to a level comparable to that on the Pd dimer which was experimentally reported to be highly efficient for CO oxidation. The present findings provide new insights into the understanding of the EMSI in heterogeneous catalysis and can open new avenues to design and fabricate cost-effective single-atomsized and/or nanometer-sized catalysts. C1 [Shi, J. L.; Zhao, X. J.; Xue, X. L.; Guo, Z. X.; Li, S. F.] Zhengzhou Univ, Int Lab Quantum Funct Mat Henan, Sch Phys & Engn, Zhengzhou 450001, Henan, Peoples R China. [Wu, J. H.] Henan Inst Educ, Dept Phys, Zhengzhou 450046, Peoples R China. [Gao, Y. F.] Univ Tennessee, Dept Mat Sci & Engn, Knoxville, TN 37996 USA. [Gao, Y. F.] Oak Ridge Natl Lab, Div Mat Sci & Technol, Oak Ridge, TN 37831 USA. [Guo, Z. X.] UCL, Dept Chem, London WC1H 0AJ, England. RP Guo, ZX; Li, SF (reprint author), Zhengzhou Univ, Int Lab Quantum Funct Mat Henan, Sch Phys & Engn, Zhengzhou 450001, Henan, Peoples R China.; Guo, ZX (reprint author), UCL, Dept Chem, London WC1H 0AJ, England. EM sflizzu@zzu.edu.cn RI Gao, Yanfei/F-9034-2010; OI Gao, Yanfei/0000-0003-2082-857X; Guo, Zheng Xiao/0000-0001-5404-3215 FU NSFC [11074223, 11034006, 11674289]; UK EPSRC [EP/L0183301/1]; US NSF [CMMI-1300223] FX We thank Professor Jun-Hyung Cho, Professor Yu Jia and Professor Zhenyu Zhang for helpful discussion. This work was supported by the NSFC (Grant No. 11074223, 11034006 and 11674289), and partly by the UK EPSRC (EP/L0183301/1) and US NSF (CMMI-1300223). NR 36 TC 0 Z9 0 U1 23 U2 23 PU ROYAL SOC CHEMISTRY PI CAMBRIDGE PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND SN 2040-3364 EI 2040-3372 J9 NANOSCALE JI Nanoscale PY 2016 VL 8 IS 46 BP 19256 EP 19262 DI 10.1039/c6nr04292a PG 7 WC Chemistry, Multidisciplinary; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied SC Chemistry; Science & Technology - Other Topics; Materials Science; Physics GA EE3AE UT WOS:000389457400011 PM 27808312 ER PT J AU Zhao, X Ke, LQ Wang, CZ Ho, KM AF Zhao, Xin Ke, Liqin Wang, Cai-Zhuang Ho, Kai-Ming TI Metastable cobalt nitride structures with high magnetic anisotropy for rare-earth free magnets SO PHYSICAL CHEMISTRY CHEMICAL PHYSICS LA English DT Article ID TOTAL-ENERGY CALCULATIONS; WAVE BASIS-SET; AB-INITIO DATA; THIN-FILMS; EFFECTIVE POTENTIALS; GENETIC ALGORITHM; MOMENT; METALS AB Metastable structures of cobalt nitrides and Fe-substituted cobalt nitrides are explored as possible candidates for rare-earth free permanent magnets. Through crystal structure searches using an adaptive genetic algorithm, new structures of ConN (n = 3...8) are found to have lower energies than those previously discovered by experiments. Some structures exhibit large magnetic anisotropy energy, reaching as high as 200 mu eV per Co atom (or 2.45 MJ m(-3)) based on first-principles density functional calculation. Substituting a fraction of Co with Fe helps in stabilizing new structures and at the same time further improves the magnetic properties. Our theoretical predictions provide useful insights into a promising system for the discovery of new rare-earth free magnets by experiment. C1 [Zhao, Xin; Wang, Cai-Zhuang] Iowa State Univ, Ames Lab, US DOE, Ames, IA 50011 USA. Iowa State Univ, Dept Phys & Astron, Ames, IA 50011 USA. RP Zhao, X; Wang, CZ (reprint author), Iowa State Univ, Ames Lab, US DOE, Ames, IA 50011 USA. EM xzhao@iastate.edu; wangcz@ameslab.gov FU National Science Foundation (NSF), Division of Materials Research (DMR) [DMREF: SusChEM 1436386]; US Department of Energy, Basic Energy Sciences, Division of Materials Science and Engineering [DE-AC02-07CH11358] FX This work was supported by the National Science Foundation (NSF), Division of Materials Research (DMR) under Award DMREF: SusChEM 1436386. The development of the adaptive genetic algorithm (AGA) method was supported by the US Department of Energy, Basic Energy Sciences, Division of Materials Science and Engineering, under Contract No. DE-AC02-07CH11358, including a grant of computer time at the National Energy Research Scientific Computing Center (NERSC) in Berkeley, CA. NR 40 TC 0 Z9 0 U1 6 U2 6 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 2016 VL 18 IS 46 BP 31680 EP 31690 DI 10.1039/c6cp06024b PG 11 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA EE1IE UT WOS:000389333700034 PM 27841387 ER PT J AU Gorai, P Toberer, ES Stevanovic, V AF Gorai, Prashun Toberer, Eric S. Stevanovic, Vladan TI Thermoelectricity in transition metal compounds: the role of spin disorder SO PHYSICAL CHEMISTRY CHEMICAL PHYSICS LA English DT Article ID QUASI-RANDOM STRUCTURES; PHASE-TRANSITIONS; TEMPERATURE; DYNAMICS; MAGNETS; DESIGN; COSB3; FESI; GAP AB At room temperature and above, most magnetic materials adopt a spin-disordered (paramagnetic) state whose electronic properties can differ significantly from their low-temperature, spin-ordered counterparts. Yet computational searches for new functional materials usually assume some type of magnetic order. In the present work, we demonstrate a methodology to incorporate spin disorder in computational searches and predict the electronic properties of the paramagnetic phase. We implement this method in a high-throughput framework to assess the potential for thermoelectric performance of 1350 transition-metal sulfides and find that all magnetic systems we identify as promising in the spin-ordered ground state cease to be promising in the paramagnetic phase due to disorder-induced deterioration of the charge carrier transport properties. We also identify promising non-magnetic candidates that do not suffer from these spin disorder effects. In addition to identifying promising materials, our results offer insights into the apparent scarcity of magnetic systems among known thermoelectrics and highlight the importance of including spin disorder in computational searches. C1 [Gorai, Prashun; Toberer, Eric S.; Stevanovic, Vladan] Colorado Sch Mines, Natl Renewable Energy Lab, Golden, CO 80401 USA. RP Stevanovic, V (reprint author), Colorado Sch Mines, Natl Renewable Energy Lab, Golden, CO 80401 USA. EM Vladan.Stevanovic@nrel.gov FU NSF DMR program [1334713]; US Department of Energy [DE-AC36-08GO28308, 06591403]; Department of Energy's Office of Energy Efficiency and Renewable Energy FX We acknowledge support from NSF DMR program, grant no. 1334713. This work was supported in part by the US Department of Energy under contract no. DE-AC36-08GO28308 to NREL and through NREL's LDRD program under grant no. 06591403. The research was performed using computational resources sponsored by the Department of Energy's Office of Energy Efficiency and Renewable Energy and located at the NREL. NR 56 TC 0 Z9 0 U1 4 U2 4 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 2016 VL 18 IS 46 BP 31777 EP 31786 DI 10.1039/c6cp06943f PG 10 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA EE1IE UT WOS:000389333700043 PM 27841408 ER PT J AU Jovic, V Rettie, AJE Singh, VR Zhou, JS Lamoureux, B Mullins, CB Bluhm, H Laverock, J Smith, KE AF Jovic, Vedran Rettie, Alexander J. E. Singh, Vijay R. Zhou, Jianshi Lamoureux, Bethany Mullins, C. Buddie Bluhm, Hendrik laverock, Jude Smith, Kevin E. TI A soft X-ray spectroscopic perspective of electron localization and transport in tungsten doped bismuth vanadate single crystals SO PHYSICAL CHEMISTRY CHEMICAL PHYSICS LA English DT Article ID BIVO4 PHOTOANODES; POLARON TRANSPORT; MONOCLINIC BIVO4; WATER OXIDATION; METAL-OXIDE; PHOTOELECTRODES; MOO3 AB Doped BiVO4 is a promising photoelectrochemical water splitting anode, whose activity is hampered by poor charge transport. Here we use a set of X-ray spectroscopic methods to probe the origin and nature of localized electron states in W: BiVO4. Furthermore, using the polarized nature of the X-rays, we probe variations in the electronic structure along the crystal axes. In this manner, we reveal aspects of the electronic structure related to electron localization and observations consistent with conductivity anisotropy between the ab-plane and c-axis. We verify that tungsten substitutes as W6+ for V5+ in BiVO4. This is shown to result in the presence of inter-band gap states related to electrons at V4+ sites of e symmetry. The energetic position of the states in the band gap suggest that they are highly localized and may act as recombination centres. Polarization dependent X-ray absorption spectra reveal anisotropy in the electronic structure between the ab-plane and c-axis. Results show the superior hybridization between V 3d and O 2p states, higher V wavefunction overlap and broader conduction bands in the ab-plane than in the c-axis. These insights into the electronic structure are discussed in the context of existing experimental and theoretical reports regarding charge transport in BiVO4. C1 [Jovic, Vedran; Smith, Kevin E.] Univ Auckland, Sch Chem Sci, Auckland 1142, New Zealand. [Jovic, Vedran; Smith, Kevin E.] Univ Auckland, Ctr Green Chem Sci, Auckland 1142, New Zealand. [Jovic, Vedran; Smith, Kevin E.] Victoria Univ Wellington, MacDiarmid Inst Adv Mat & Nanotechnol, Wellington 6140, New Zealand. [Rettie, Alexander J. E.; Mullins, C. Buddie] Univ Texas Austin, McKetta Dept Chem Engn, Austin, TX 78712 USA. [Singh, Vijay R.; Lamoureux, Bethany; laverock, Jude; Smith, Kevin E.] Boston Univ, Dept Phys, 590 Commonwealth Ave, Boston, MA 02215 USA. [Zhou, Jianshi; Mullins, C. Buddie] Univ Texas Austin, Texas Mat Inst, Austin, TX 78712 USA. [Bluhm, Hendrik] Lawrence Berkeley Natl Lab, Div Chem Sci, Berkeley, CA 94720 USA. [laverock, Jude] Univ Bristol, HH Wills Phys Lab, Sch Phys, Tyndall Ave, Bristol BS8 1TL, Avon, England. RP Jovic, V (reprint author), Univ Auckland, Sch Chem Sci, Auckland 1142, New Zealand.; Jovic, V (reprint author), Univ Auckland, Ctr Green Chem Sci, Auckland 1142, New Zealand.; Jovic, V (reprint author), Victoria Univ Wellington, MacDiarmid Inst Adv Mat & Nanotechnol, Wellington 6140, New Zealand. EM vjov001@aucklanduni.ac.nz RI Laverock, Jude/G-4537-2010 OI Laverock, Jude/0000-0003-3653-8171 FU Department of Energy [DE-FG02-98ER45680]; U.S. Department of Energy [DE-AC02-05CH11231]; U.S. Department of Energy Office of Basic Energy Sciences [DE-FG02-09ER16119]; Welch Foundation [F-1436]; Hemphill-Gilmore Endowed fellowship; NSF [MIRT DMR 1122603]; Division of Chemical Sciences, Geosciences, and Biosciences of the US Department of Energy at the Lawrence Berkeley National Laboratory [DEAC02-05CH11231] FX The Boston University program is supported by the Department of Energy under Grant No. DE-FG02-98ER45680. The Advanced Light Source is supported by the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. AJER and CBM gratefully acknowledge the U.S. Department of Energy Office of Basic Energy Sciences Grant DE-FG02-09ER16119 and Welch Foundation Grant F-1436. Additionally, AJER acknowledges the Hemphill-Gilmore Endowed fellowship for financial support. J-SZ was supported by NSF MIRT DMR 1122603. VJ would like to thank the beamline scientists at beamlines 8.0.1 and 11.0.2 of the ALS for their assistance during measurements. Beamline 11.0.2 is also supported by the Director, Office of Science, Office of Basic Energy Sciences, and by the Division of Chemical Sciences, Geosciences, and Biosciences of the US Department of Energy at the Lawrence Berkeley National Laboratory under Contract No. DEAC02-05CH11231. NR 32 TC 0 Z9 0 U1 8 U2 8 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 2016 VL 18 IS 46 BP 31958 EP 31965 DI 10.1039/c6cp04526j PG 8 WC Chemistry, Physical; Physics, Atomic, Molecular & Chemical SC Chemistry; Physics GA EE1IE UT WOS:000389333700063 PM 27844065 ER PT S AU Foster, I Chard, K Tuecke, S AF Foster, Ian Chard, Kyle Tuecke, Steven GP IEEE TI The Discovery Cloud: Accelerating and Democratizing Research on a Global Scale SO PROCEEDINGS 2016 IEEE INTERNATIONAL CONFERENCE ON CLOUD ENGINEERING (IC2E) SE International Conference on Cloud Engineering LA English DT Proceedings Paper CT IEEE International Conference on Cloud Engineering (IC2E) CY APR 04-08, 2016 CL TU Berlin, Berlin, GERMANY SP IEEE, IEEE Comp Soc, IEEE Cloud Comp, STC Cloud Comp, TCBIS HO TU Berlin ID SERVICE; SOFTWARE; SCIENCE; ONLINE; GALAXY AB Modern science and engineering require increasingly sophisticated information technology ( IT) for data analysis, simulation, and related tasks. Yet the small to medium laboratories (SMLs) in which the majority of research advances occur increasingly lack the human and financial capital needed to acquire and operate such IT. New methods are needed to provide all researchers with access to state-of-the-art scientific capabilities, regardless of their location and budget. Industry has demonstrated the value of cloud-hosted software-and platform-as-a-service approaches; small businesses that outsource their IT to third-party providers slash costs and accelerate innovation. However, few business cloud services are transferable to science. We thus propose the Discovery Cloud, an ecosystem of new, community-produced services to which SMLs can outsource common activities, from data management and analysis to collaboration and experiment automation. We explain the need for a Discovery Platform to streamline the creation and operation of new and interoperable services, and a Discovery Exchange to facilitate the use and sustainability of Discovery Cloud services. We report on our experiences building early elements of the Discovery Platform in the form of Globus services, and on the experiences of those who have applied those services in innovative applications. C1 [Foster, Ian; Chard, Kyle; Tuecke, Steven] Computat Inst, Argonne, IL 60439 USA. [Foster, Ian; Chard, Kyle; Tuecke, Steven] UChicago, Chicago, IL 60637 USA. [Foster, Ian] Argonne Natl Lab, Div Math & Comp Sci, Argonne, IL 60439 USA. [Foster, Ian] Univ Chicago, Dept Comp Sci, Chicago, IL 60637 USA. RP Foster, I (reprint author), Computat Inst, Argonne, IL 60439 USA.; Foster, I (reprint author), UChicago, Chicago, IL 60637 USA.; Foster, I (reprint author), Argonne Natl Lab, Div Math & Comp Sci, Argonne, IL 60439 USA.; Foster, I (reprint author), Univ Chicago, Dept Comp Sci, Chicago, IL 60637 USA. EM chard@uchicago.edu; foster@uchicago.edu; tuecke@uchicago.edu NR 32 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2373-3845 BN 978-1-5090-1961-8 J9 INT CONF CLOUD ENG PY 2016 BP 68 EP 77 DI 10.1109/IC2E.2016.46 PG 10 WC Computer Science, Theory & Methods; Engineering, Electrical & Electronic SC Computer Science; Engineering GA BG5KK UT WOS:000389517000009 ER PT J AU Rajbhandari, S Kim, J Krishnamoorthy, S Poucheti, LN Rastello, F Harrison, RJ Sadayappan, P AF Rajbhandari, Samyam Kim, Jinsung Krishnamoorthy, Sriram Poucheti, Louis-Noel Rastello, Fabrice Harrison, Robert J. Sadayappan, P. GP ACM TI On Fusing Recursive Traversals of K-d Trees SO PROCEEDINGS OF THE 25TH INTERNATIONAL CONFERENCE ON COMPILER CONSTRUCTION (CC 2016) LA English DT Proceedings Paper CT 25th International Conference on Compiler Construction (CC) CY MAR 17-18, 2016 CL Barcelona, SPAIN SP Assoc Comp Machinery, ACM SIGPLAN, IMDEA Software Inst, Intel DE Tree traversal; data locality; fusion ID PROGRAMS AB Loop fusion is a key program transformation for data locality optimization that is implemented in production compilers. But optimizing compilers for imperative languages currently cannot exploit fusion opportunities across a set of recursive tree traversal computations with producer-consumer relationships. In this paper, we develop a compile-time approach to dependence characterization and program transformation to enable fusion across recursively specified traversals over k-d trees. We present the FuseT source-to-source code transformation framework to automatically generate fused composite recursive operators from an input program containing a sequence of primitive recursive operators. We use our framework to implement fused operators for MADNESS, Multiresolution Adaptive Numerical Environment for Scientific Simulation. We show that locality optimization through fusion can offer significant performance improvement. C1 [Rajbhandari, Samyam; Kim, Jinsung; Poucheti, Louis-Noel; Sadayappan, P.] Ohio State Univ, Columbus, OH 43210 USA. [Krishnamoorthy, Sriram] Pacific Northwest Natl Lab, Richland, WA USA. [Rastello, Fabrice] INRIA, Rocquencourt, France. [Harrison, Robert J.] SUNY Stony Brook, Stony Brook, NY USA. RP Rajbhandari, S (reprint author), Ohio State Univ, Columbus, OH 43210 USA. NR 29 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 978-1-4503-4241-4 PY 2016 BP 152 EP 162 DI 10.1145/2892208.2892228 PG 11 WC Computer Science, Software Engineering SC Computer Science GA BG5YS UT WOS:000389808800015 ER PT S AU Brumfield, BE Taubman, MS Phillips, MC AF Brumfield, B. E. Taubman, M. S. Phillips, M. C. BE Razeghi, M Brown, GJ Lewis, JS TI Demonstration of a rapidly-swept external cavity quantum cascade laser for rapid and sensitive quantification of chemical mixtures SO QUANTUM SENSING AND NANO ELECTRONICS AND PHOTONICS XIII SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Quantum Sensing and Nano Electronics and Photonics XIII CY FEB 14-18, 2016 CL San Francisco, CA SP SPIE DE external cavity quantum cascade laser; infrared spectroscopy; trace gas sensing ID ISOTOPE RATIO MEASUREMENTS; SPECTROSCOPY; SENSOR; CO2 AB A rapidly-swept external-cavity quantum cascade laser with an open-path Herriott cell is used to quantify gas-phase chemical mixtures of D2O and HDO at an update rate of 40 Hz (25 ms measurement time). The chemical mixtures were generated by evaporating D2O liquid near the open-path Herriott cell, allowing the H/D exchange reaction with ambient H2O to produce HDO. Fluctuations in the ratio of D2O and HDO on timescales of < 1 s due to the combined effects of plume transport and the H/D exchange chemical reaction are observed. Based on a noise equivalent concentration analysis of the current system, detection limits of 147.0 ppbv and 151.6 ppbv in a 25 ms measurement time are estimated for D2O and HDO respectively with a 127 m optical path. These detection limits are reduced to 23.0 and 24.0 ppbv with a 1 s averaging time for D2O and HDO respectively. Detection limits < 200 ppbv are also estimated for N2O, F134A, CH4, Acetone, and SO2 for a 25 ms measurement time. C1 [Brumfield, B. E.; Taubman, M. S.; Phillips, M. C.] Pacific Northwest Natl Lab, POB 999, Richland, WA 99352 USA. RP Brumfield, BE (reprint author), Pacific Northwest Natl Lab, POB 999, Richland, WA 99352 USA. NR 23 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 978-1-62841-990-0 J9 PROC SPIE PY 2016 VL 9755 AR 975509 DI 10.1117/12.2214200 PG 10 WC Engineering, Electrical & Electronic; Optics; Physics, Applied SC Engineering; Optics; Physics GA BG4AA UT WOS:000388442500004 ER PT S AU Khromova, I Navarro-Cia, M Brener, I Reno, JL Ponomarev, AN Mitrofanov, O AF Khromova, Irina Navarro-Cia, Miguel Brener, Igal Reno, John L. Ponomarev, Andrey N. Mitrofanov, Oleg BE Razeghi, M Brown, GJ Lewis, JS TI Plasmonic resonances in carbon fibers observed with terahertz near-field microscopy SO QUANTUM SENSING AND NANO ELECTRONICS AND PHOTONICS XIII SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Quantum Sensing and Nano Electronics and Photonics XIII CY FEB 14-18, 2016 CL San Francisco, CA SP SPIE DE terahertz; plasmons; resonators; graphite; near-field microscopy; terahertz time-domain spectroscopy ID GRAPHITE; WAVES AB development of THz devises. A number of material systems have been proposed and demonstrated for THz plasmonic resonators, including doped semiconductors, materials with metallic behavior, such as graphene, graphite, and carbon nano-tubes, superconductors and topological insulators. However, experimental investigations of THz plasmonic resonators, which are typically a fraction of the free space wavelength in size, remain challenging. We demonstrate that THz near-field spectroscopy and imaging technique based on a sub-wavelength aperture probe can be employed to detect excitation of THz plasmons in carbon micro-fibers. Upon excitation of a single carbon fiber by a THz pulse, we observe a standing wave formed along the fiber length. The resonant frequency is consistent with the fundamental dipole mode, both in its value and in its dependence on the fiber length. The field of the standing wave is localized and it indicates the plasmonic nature of the excitation. The fact that the resonance frequency also depends on the material conductivity allows us to employ the THz near-field spectroscopy method to evaluate the material conductivity non-invasively. Furthermore we propose an alternative method for non-contact conductivity probing. It utilizes the relative amplitude of the surface plasmon field that can be measured by the near-field probe. The amplitude increases with the fiber conductivity and therefore it can be used for conductivity estimation. C1 [Khromova, Irina; Navarro-Cia, Miguel; Mitrofanov, Oleg] UCL, Dept Elect & Elect Engn, London WC1E 7JE, England. [Khromova, Irina] KCL, Dept Phys, London WC2R 2LS, England. [Khromova, Irina] ITMO Univ, Int Res Ctr Nanophoton & Metamat, St Petersburg 199034, Russia. [Navarro-Cia, Miguel] ICI PLC, Dept Elect & Elect Engn, London SW7 2BT, England. [Brener, Igal; Reno, John L.; Mitrofanov, Oleg] Sandia Natl Labs, Ctr Integrated Nanotechnol, POB 5800, Albuquerque, NM 87185 USA. [Brener, Igal; Reno, John L.] Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. [Ponomarev, Andrey N.] St Petersburg State Polytech Univ, St Petersburg 194064, Russia. RP Mitrofanov, O (reprint author), UCL, Dept Elect & Elect Engn, London WC1E 7JE, England.; Mitrofanov, O (reprint author), Sandia Natl Labs, Ctr Integrated Nanotechnol, POB 5800, Albuquerque, NM 87185 USA. EM o.mitrofanov@ucl.ac.uk RI Mitrofanov, Oleg/C-1938-2008 OI Mitrofanov, Oleg/0000-0003-3510-2675 NR 9 TC 0 Z9 0 U1 4 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 978-1-62841-990-0 J9 PROC SPIE PY 2016 VL 9755 AR 97550O DI 10.1117/12.2213349 PG 7 WC Engineering, Electrical & Electronic; Optics; Physics, Applied SC Engineering; Optics; Physics GA BG4AA UT WOS:000388442500012 ER PT S AU Ocola, LE Gosztola, DJ Yanguas-Gil, A Suh, HS Connolly, A AF Ocola, Leonidas E. Gosztola, David J. Yanguas-Gil, Angel Suh, Hyo-Seon Connolly, Aine BE Razeghi, M Brown, GJ Lewis, JS TI Photoluminescence of Sequential Infiltration Synthesized ZnO nanostructures SO QUANTUM SENSING AND NANO ELECTRONICS AND PHOTONICS XIII SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Quantum Sensing and Nano Electronics and Photonics XIII CY FEB 14-18, 2016 CL San Francisco, CA SP SPIE DE Photoluminescence; Zinc oxide; polymethyl methacrylate; infiltration ID ATOMIC LAYER DEPOSITION; FILMS; AL2O3 AB For the past several years there have been ongoing efforts to incorporate zinc oxide (ZnO) inside polymethyl methacrylate (PMMA), in the form of nanoparticles or quantum dots, to combine their optical properties for multiple applications. We have investigated a variation of atomic layer deposition (ALD), called sequential infiltration synthesis (SiS), as an alternate method to incorporate ZnO and other oxides inside the polymer. PMMA is a well-known ebeam resist. We can expose and develop patterns useful for photonics or sensing applications first, and then convert them afterwards into a hybrid oxide material with enhanced photonic, or sensing, properties. This is much easier than micromachining films of ZnO or other similar oxides because they are difficult to etch. The amount of ZnO formed inside the polymer film is magnitudes higher than equivalent amount deposited on a flat 2D surface, and the intensity of the photoemission suggests there is an enhancement created by the polymer-ZnO interaction. Photoemission from thin films exhibit photoemission similar to intrinsic ZnO with oxygen vacancies. These vacancies can be removed by annealing the sample at 500 degrees C in an oxygen rich environment. SiS ZnO exhibits unusual photoemission properties for thick polymer films, emitting at excitations wavelengths not found in bulk or standard ZnO. Finally we have shown that patterning the polymer and then doing SiS ZnO treatment afterwards allows modifying or manipulating the photoemission spectra. This opens the doors to novel photonic applications. C1 [Ocola, Leonidas E.; Gosztola, David J.; Yanguas-Gil, Angel; Suh, Hyo-Seon] Argonne Natl Lab, 9700 South Cass Ave, Argonne, IL 60439 USA. [Connolly, Aine] Vassar Coll, 124 Raymond Ave, Poughkeepsie, NY 12604 USA. RP Ocola, LE (reprint author), Argonne Natl Lab, 9700 South Cass Ave, Argonne, IL 60439 USA. OI Ocola, Leonidas/0000-0003-4990-1064 NR 12 TC 1 Z9 1 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 978-1-62841-990-0 J9 PROC SPIE PY 2016 VL 9755 AR 97552C DI 10.1117/12.2209422 PG 6 WC Engineering, Electrical & Electronic; Optics; Physics, Applied SC Engineering; Optics; Physics GA BG4AA UT WOS:000388442500029 ER PT J AU Chundawat, SPS Paavola, CD Raman, B Nouailler, M Chan, SL Mielenz, JR Receveur-Brechot, V Trent, JD Dale, BE AF Chundawat, Shishir P. S. Paavola, Chad D. Raman, Babu Nouailler, Matthieu Chan, Suzanne L. Mielenz, Jonathan R. Receveur-Brechot, Veronique Trent, Jonathan D. Dale, Bruce E. TI Saccharification of thermochemically pretreated cellulosic biomass using native and engineered cellulosomal enzyme systems SO REACTION CHEMISTRY & ENGINEERING LA English DT Article ID X-RAY-SCATTERING; CLOSTRIDIUM-THERMOCELLUM CELLULOSOME; CARBOHYDRATE-BINDING MODULES; COHESIN-DOCKERIN COMPLEX; CRYSTALLINE CELLULOSE; LIGNOCELLULOSIC BIOMASS; DESIGNER CELLULOSOMES; BIOLOGICAL MACROMOLECULES; TRICHODERMA-REESEI; FUNGAL CELLULASES AB Consolidated bioprocessing (CBP) of pretreated lignocellulosic biomass using microbes like Clostridium thermocellum allows simultaneous polysaccharide saccharification and sugar fermentation to produce fuels or chemicals using a one-pot process. C. thermocellum is a thermophilic bacterium that deconstructs biomass using large multi-enzyme complexes called cellulosomes. Characterization of cellulosomal enzymes tethered to native or engineered scaffoldin proteins has revealed that enzyme complexation is critical to the bacterium's cellulolytic ability. However, we have a limited understanding of the impact of enzyme complexation on the saccharification efficiency of various forms of industrially relevant pretreated biomass substrates. Here, we compared the hydrolytic activity of the most abundant cellulosomal enzymes from C. thermocellum and investigate the importance of enzyme complexation using a model engineered protein scaffold (called 'rosettasome'). The hydrolytic performance of non-complexed enzymes, enzyme-rosettasome (or rosettazyme) complexes, and cellulosomes was tested on distinct cellulose allomorphs formed during biomass pretreatment. The scaffold-immobilized enzymes always gave higher activity than free enzymes. However, cellulosomes exhibited higher activity than rosettazyme complexes. This was likely due to the greater flexibility of the native versus engineered scaffold, as deciphered using small angle X-ray scattering. Surprisingly, scaffold-tethered enzymes also gave comparable activity on all the cellulose allomorphs tested, which is unlike the preferential activity of non-complexed cellulases seen for certain allomorph forms. Tethered enzyme complexes also gave lower saccharification yields on industrially relevant lignin-rich switchgrass than cellulose alone. In summary, we find that the type of pretreatment can significantly impact the saccharification efficiency of cellulosomal enzymes for various CBP scenarios. C1 [Chundawat, Shishir P. S.] State Univ New Jersey, Dept Chem & Biochem Engn, 98 Brett Rd,Engn Wing C-150A, Piscataway, NJ 08854 USA. [Chundawat, Shishir P. S.; Dale, Bruce E.] Michigan State Univ, DOE Great Lakes Bioenergy Res Ctr GLBRC, E Lansing, MI 48824 USA. [Chundawat, Shishir P. S.; Dale, Bruce E.] Michigan State Univ, Chem Engn & Mat Sci, 3815 Technol Blvd,Suite 1045, Lansing, MI 48910 USA. [Paavola, Chad D.; Trent, Jonathan D.] NASA Ames, Bioengn Branch, Moffett Field, CA USA. [Raman, Babu; Mielenz, Jonathan R.] Oak Ridge Natl Lab, Biosci Div, Oak Ridge, TN USA. [Raman, Babu; Mielenz, Jonathan R.] Oak Ridge Natl Lab, BioEnergy Sci Ctr, Oak Ridge, TN USA. [Nouailler, Matthieu] CNRS, LISM UMR Inst Microbiol Mediterranee 7255, 31 Chemin Joseph Aiguier, F-13402 Marseille 20, France. [Nouailler, Matthieu] Aix Marseille Univ, 31 Chemin Joseph Aiguier, F-13402 Marseille 20, France. [Chan, Suzanne L.] SETI Inst, Mountain View, CA USA. [Receveur-Brechot, Veronique] Aix Marseille Univ, CNRS, INSERM, Inst Paoli Calmettes,CRCM, Marseille, France. [Trent, Jonathan D.] Univ Calif Santa Cruz, Dept Biomol Engn, Santa Cruz, CA 95064 USA. [Paavola, Chad D.] Eli Lilly & Co, Lilly Corp Ctr, Drop Code 0403, Indianapolis, IN 46285 USA. [Raman, Babu] Dow AgroSci, 9330 Zionsville Rd, Indianapolis, IN 46268 USA. RP Chundawat, SPS (reprint author), State Univ New Jersey, Dept Chem & Biochem Engn, 98 Brett Rd,Engn Wing C-150A, Piscataway, NJ 08854 USA.; Chundawat, SPS (reprint author), Michigan State Univ, DOE Great Lakes Bioenergy Res Ctr GLBRC, E Lansing, MI 48824 USA.; Chundawat, SPS (reprint author), Michigan State Univ, Chem Engn & Mat Sci, 3815 Technol Blvd,Suite 1045, Lansing, MI 48910 USA. EM shishir.chundawat@rutgers.edu; cdpaavola@gmail.com; BRaman@dow.com; Matthieu.Nouailler@imm.cnrs.fr; slchansf@yahoo.com; biofuels4me@gmail.com; veronique.brechot@inserm.fr; jonathan.d.trent@nasa.gov; bdale@egr.msu.edu NR 79 TC 0 Z9 0 U1 2 U2 2 PU ROYAL SOC CHEMISTRY PI CAMBRIDGE PA THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND SN 2058-9883 J9 REACT CHEM ENG JI REACT. CHEM. ENG. PY 2016 VL 1 IS 6 BP 616 EP 628 DI 10.1039/c6re00172f PG 13 WC Chemistry, Multidisciplinary SC Chemistry GA EE1DW UT WOS:000389322200004 ER PT J AU Bock, DC Bruck, AM Pelliccione, CJ Zhang, YM Takeuchi, KJ Marschilok, AC Takeuchi, ES AF Bock, David C. Bruck, Andrea M. Pelliccione, Christopher J. Zhang, Yiman Takeuchi, Kenneth J. Marschilok, Amy C. Takeuchi, Esther S. TI Li/Ag2VO2PO4 batteries: the roles of composite electrode constituents on electrochemistry SO RSC ADVANCES LA English DT Article ID X-RAY-DIFFRACTION; SILVER VANADIUM-OXIDE; IMPLANTABLE CARDIOVERTER-DEFIBRILLATORS; LITHIUM-ION BATTERIES; ABSORPTION FINE-STRUCTURE; CATHODE MATERIAL; PHOSPHORUS OXIDE; IMPEDANCE SPECTROSCOPY; CARBON NANOTUBES; POLYMERIC BINDER AB In this study, we utilize silver vanadiumphosphorous oxide, Ag2VO2PO4, as a model system to systematically study the impact of the constituents of a composite electrode, including polymeric and conductive additives, on electrochemistry. Notably, although highly resistive, this bimetallic cathode can be discharged as a pure electroactive material in the absence of a conductive additive as it generates an in situ conductive matrix via a reduction displacement reaction resulting in the formation of silver metal nanoparticles. Three different electrode compositions were investigated: Ag2VO2PO4 only, Ag2VO2PO4 with binder, and Ag2VO2PO4 with binder and carbon. Constant current discharge, pulse testing and impedance spectroscopy measurements were used to characterize the electrochemical properties of the electrodes as a function of depth of discharge. In situ EDXRD was used to spatially resolve the discharge progression within the cathode by following the formation of Ag-0. Ex situ XRD and EXAFS modeling were used to quantify the amount of Ag-0 formed. Results indicate that the metal center reduced (V5+ or Ag+) was highly dependent on composite composition (presence of PTFE, carbon), depth of discharge (Ag-0 nanoparticle formation), and spatial location within the cathode. The addition of a binder was found to increase cell polarization, and the percolation network provided by the carbon in the presence of PTFE was further increased with reduction and formation of Ag-0. This study provides insight into the factors controlling the electrochemistry of resistive active materials in composite electrodes. C1 [Bock, David C.; Pelliccione, Christopher J.; Takeuchi, Esther S.] Brookhaven Natl Lab, Upton, NY 11973 USA. [Bruck, Andrea M.; Zhang, Yiman; Takeuchi, Kenneth J.; Marschilok, Amy C.; Takeuchi, Esther S.] SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA. [Takeuchi, Kenneth J.; Marschilok, Amy C.; Takeuchi, Esther S.] SUNY Stony Brook, Dept Mat Sci & Engn, Stony Brook, NY 11794 USA. RP Takeuchi, ES (reprint author), Brookhaven Natl Lab, Upton, NY 11973 USA.; Takeuchi, KJ; Marschilok, AC; Takeuchi, ES (reprint author), SUNY Stony Brook, Dept Chem, Stony Brook, NY 11794 USA.; Takeuchi, KJ; Marschilok, AC; Takeuchi, ES (reprint author), SUNY Stony Brook, Dept Mat Sci & Engn, Stony Brook, NY 11794 USA. EM kenneth.takeuchi.1@stonybrook.edu; amy.marschilok@stonybrook.edu; esther.takeuchi@stonybrook.edu RI BM, MRCAT/G-7576-2011 FU Center for Mesoscale Transport Properties, an Energy Frontier Research Center - U.S. Department of Energy, Office of Science, Basic Energy Sciences [DE-SC0012673]; DOE Office of Science [DE-AC02-06CH113]; National Synchrotron Light Source II, Brookhaven National Laboratory, under DOE [DE-SC0012704]; National Science Foundation [1109408] FX This work was supported as part of the Center for Mesoscale Transport Properties, an Energy Frontier Research Center supported by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, under award #DE-SC0012673 for financial support. This research used resources of the Advanced Photon Source beamlines 6-BM, B and 10-BM, 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-AC02-06CH113. Use of APS Beamline 6-BM is partially supported by the National Synchrotron Light Source II, Brookhaven National Laboratory, under DOE Contract No. DE-SC0012704. A. M. B. acknowledges the support of the National Science Foundation Graduate Research Fellowship under grant No. 1109408. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the National Science Foundation. NR 65 TC 0 Z9 0 U1 7 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 2016 VL 6 IS 108 BP 106887 EP 106898 DI 10.1039/c6ra24024k PG 12 WC Chemistry, Multidisciplinary SC Chemistry GA EE1HD UT WOS:000389330700097 ER PT J AU Weck, PF Kim, EJ AF Weck, Philippe F. Kim, Eunja TI Energetics of Sn2+ isomorphic substitution into hydroxylapatite: first-principles predictions SO RSC ADVANCES LA English DT Article ID RAY-ABSORPTION SPECTROSCOPY; EFFECTIVE IONIC-RADII; CALCIUM HYDROXYAPATITE; LEAD SUBSTITUTION; APATITE; TECHNETIUM; MECHANISM; STRONTIUM; METALS; ZINC AB The energetics of Sn2+ substitution into the Ca2+ sublattice of hydroxylapatite (HA), Ca-10(PO4)(6)(OH)(2), has been investigated within the framework of density functional theory. Calculations reveal that Sn2+ incorporation via coupled substitutions at Ca(II) sites is energetically favourable up to a composition of Sn6Ca4(PO4)(6)(OH)(2), and further substitutions at Ca(I) sites proceed once full occupancy of Ca(II) sites by Sn2+ is achieved. Compositions of SnxCa(10-x)(PO4)(6)(OH)(2) (x = 4-9) are predominant, with an optimal stoichiometry of Sn8Ca2(PO4)(6)(OH)(2), and Sn-substituted HA follows approximately Vegard's law across the entire composition range. C1 [Weck, Philippe F.] Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. [Kim, Eunja] Univ Nevada, Dept Phys & Astron, Las Vegas, NV 89154 USA. RP Weck, PF (reprint author), Sandia Natl Labs, POB 5800, Albuquerque, NM 87185 USA. EM pfweck@sandia.gov FU U.S. Department of Energy's National Nuclear Security Administration [DE-AC04-94AL85000] FX Sandia National Laboratories is a multi-program laboratory managed and operated by Sandia Corporation, a wholly owned subsidiary of Lockheed Martin Corporation, for the U.S. Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000. We thank Robert Moore and Mark Rigali (Sandia National Laboratories) for stimulating discussions and John Vienna, Jeff Serne, Matt Asmussen and Nik Qafoku (Pacific Northwest National Laboratory) for useful information. NR 59 TC 0 Z9 0 U1 2 U2 2 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 2016 VL 6 IS 109 BP 107286 EP 107292 DI 10.1039/c6ra22249h PG 7 WC Chemistry, Multidisciplinary SC Chemistry GA EE1LF UT WOS:000389342400018 ER PT J AU Chatterjee, S Conroy, MA Smith, FN Jung, HJ Wang, Z Peterson, RA Huq, A Burtt, DG Ilton, ES Buck, EC AF Chatterjee, Sayandev Conroy, Michele A. Smith, Frances N. Jung, Hee-Joon Wang, Zheming Peterson, Reid A. Huq, Ashfia Burtt, David G. Ilton, Eugene S. Buck, Edgar C. TI Can Cr(III) substitute for Al(III) in the structure of boehmite? SO RSC ADVANCES LA English DT Article ID DISSOLUTION; DIASPORE; CHROMIUM; GIBBSITE; BAYERITE; CR; FE; NI AB The dissolution of boehmite is a technical issue for Al industry because of its recalcitrant nature. In fact, a similar problem exists with boehmite in nuclear waste sludge at the Hanford site in Eastern Washington State, USA. Dissolution of Al phases is required to reduce the waste loadings in the final borosilicate glass waste form. Although not the most common Al-bearing species in the sludge, boehmite may become a rate limiting step in the processing of the wastes. Hanford boehmite is an order of magnitude more resistant to dissolution in hot caustic solutions than expected from surface-normalized rates. We are exploring potential intrinsic and extrinsic effects that may limit boehmite reactivity; one clue comes from microstructural analyses that indicate an association of Cr with Al in the Hanford nuclear waste. Hence, in this first paper, we investigated the potential role of chromium on the reactivity of boehmite in caustic solution. An important finding was that irrespective of the synthesis pathway, amount of Cr(III), or the resultant morphology, there was no evidence for Cr incorporation in the bulk structure, in agreement with QM calculations. In fact, electron microscopic (EM) and spectroscopic analyses showed that Cr was enriched at the (101) edges of the boehmite. However, Cr had no measurable effect on the morphology during the synthesis step. In contrast, comparison of the morphologies of the synthetic Cr-doped and pure boehmite samples after exposure to caustic solutions provided evidence that Cr inhibited the corrosion. TEM showed that Cr was not homogeneously distributed at the surface. Consequently, Cr may have partially passivated the surface by blocking discrete energetic sites on the lateral surfaces of boehmite. C1 [Chatterjee, Sayandev; Conroy, Michele A.; Smith, Frances N.; Jung, Hee-Joon; Peterson, Reid A.; Burtt, David G.; Buck, Edgar C.] Pacific Northwest Natl Lab, Energy & Environm Directorate, Richland, WA 99354 USA. [Wang, Zheming; Ilton, Eugene S.] Pacific Northwest Natl Lab, Phys & Computat Sci Directorate, Richland, WA 99354 USA. [Huq, Ashfia] Oak Ridge Natl Lab, Chem & Engn Mat Div, Oak Ridge, TN 37831 USA. RP Chatterjee, S; Buck, EC (reprint author), Pacific Northwest Natl Lab, Energy & Environm Directorate, Richland, WA 99354 USA.; Ilton, ES (reprint author), Pacific Northwest Natl Lab, Phys & Computat Sci Directorate, Richland, WA 99354 USA. EM Sayandev.Chatterjee@pnnl.gov; Eugene.Ilton@pnnl.gov; Edgar.Buck@pnnl.gov FU Laboratory Directed Research and Development (LDRD), Nuclear Processing Science Initiative (NPSI); U.S. Department of Energy (DOE) [DE-AC06-76RLO 1830] FX This work was supported by the Laboratory Directed Research and Development (LDRD), Nuclear Processing Science Initiative (NPSI). Pacific Northwest National Laboratory (PNNL) is a multi-program national laboratory operated for the U.S. Department of Energy (DOE) by Battelle Memorial Institute under Contract DE-AC06-76RLO 1830. Part of this research was performed at EMSL, a national scientific user facility at PNNL managed by the Department of Energy's Office of Biological and Environmental Research. A portion of the research used resources at the Spallation Neutron Source (SNS), a DOE Office of Science User Facility operated by the Oak Ridge National Laboratory. Calculations were performed using PNNL Institutional Computing resources at Pacific Northwest National Laboratory. NR 36 TC 0 Z9 0 U1 3 U2 3 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 2016 VL 6 IS 109 BP 107628 EP 107637 DI 10.1039/c6ra20234a PG 10 WC Chemistry, Multidisciplinary SC Chemistry GA EE1LF UT WOS:000389342400062 ER PT J AU Feng, CH Meng, XP Song, XL Feng, XT Zhao, Y Liu, G AF Feng, Caihong Meng, Xianpu Song, Xiaolu Feng, Xueting Zhao, Yun Liu, Gao TI Controllable synthesis of hierarchical CuS/ZnS hetero-nanowires as high-performance visible-light photocatalysts SO RSC ADVANCES LA English DT Article ID HYDROGEN-PRODUCTION ACTIVITY; REDUCED GRAPHENE OXIDE; LITHIUM-ION BATTERIES; TIO2 PHOTOCATALYSTS; TITANIUM-DIOXIDE; CHARGE-TRANSFER; CUS; NANOCOMPOSITES; HETEROSTRUCTURES; DEGRADATION AB Novel hierarchical CuS/ZnS hetero-nanowires were designed and successfully synthesized through a template-free and surfactant-free chemical solution method with a mixed solvent of dimethyl sulfoxide and ethylene glycol. The precursors of CuS and the molar ratio of Cu : Zn, play a crucial role in controlling the morphology of the CuS/ZnS heterostructure. The precursors of CuS serve both as a source material for chemical transformation to CuS and as sacrificial templates for the growth of ZnS nanosheets by adding zinc(II) ions, finally forming a ZnS/CuS hierarchical nanomaterial with p-n heterojunctions. The as-prepared samples were examined by X-ray diffraction, X-ray photoelectron spectroscopy, scanning electron microscopy, transmission electron microscopy, UV-visible diffuse reflectance spectroscopy and Brunauer-Emmett-Teller measurements. Photocatalytic activities for methylene blue and rhodamine B were investigated under visible-light irradiation, and appreciably increased photocatalytic activity compared to individual counterparts is achieved by the hierarchical CuS/ZnS hetero-nanowires. The p-n heterojunction, one-dimensional nanostructures and large specific surface area are responsible for the improved photocatalytic activities. C1 [Feng, Caihong; Meng, Xianpu; Feng, Xueting; Zhao, Yun] Beijing Inst Technol, Sch Chem Engn & Environm, Beijing 100081, Peoples R China. [Feng, Caihong; Liu, Gao] Lawrence Berkeley Natl Lab, 1 Cyclotron Rd,MS 70R108B, Berkeley, CA 94720 USA. [Song, Xiaolu] PetroChina, Xinjiang Oilfield Co, Fengcheng Field Operat Dist, Beijing, Peoples R China. RP Zhao, Y (reprint author), Beijing Inst Technol, Sch Chem Engn & Environm, Beijing 100081, Peoples R China.; Liu, G (reprint author), Lawrence Berkeley Natl Lab, 1 Cyclotron Rd,MS 70R108B, Berkeley, CA 94720 USA. EM gliu@lbl.gov NR 54 TC 0 Z9 0 U1 12 U2 12 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 2016 VL 6 IS 111 BP 110266 EP 110273 DI 10.1039/c6ra20306j PG 8 WC Chemistry, Multidisciplinary SC Chemistry GA EE1OD UT WOS:000389350700103 ER PT J AU Meng, B Li, HY Mahurin, SM Liu, HL Dai, S AF Meng, Bo Li, Haiying Mahurin, Shannon M. Liu, Honglai Dai, Sheng TI Hyper-crosslinked cyclodextrin porous polymer: an efficient CO2 capturing material with tunable porosity SO RSC ADVANCES LA English DT Article ID MICROPOROUS ORGANIC POLYMERS; ADSORPTION PROPERTIES; CARBON-DIOXIDE AB We designed and synthesized cyclodextrin (CD)-based hypercrosslinked porous polymers (HCPPs) for selective CO2 adsorption and storage. We also explored the effect of monomer size on micropore formation, and determined a feasible way to tailor the porosity of the materials during the hyper-crosslinking process. C1 [Meng, Bo; Dai, Sheng] Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA. [Li, Haiying; Liu, Honglai] East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China. [Li, Haiying; Liu, Honglai] East China Univ Sci & Technol, Dept Chem, Shanghai 200237, Peoples R China. [Li, Haiying; Mahurin, Shannon M.; Dai, Sheng] Oak Ridge Natl Lab, Div Chem Sci, 1 Bethel Valley Rd, Oak Ridge, TN 37831 USA. RP Dai, S (reprint author), Univ Tennessee, Dept Chem, Knoxville, TN 37996 USA.; Liu, HL (reprint author), East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China.; Liu, HL (reprint author), East China Univ Sci & Technol, Dept Chem, Shanghai 200237, Peoples R China.; Mahurin, SM; Dai, S (reprint author), Oak Ridge Natl Lab, Div Chem Sci, 1 Bethel Valley Rd, Oak Ridge, TN 37831 USA. EM mahurinsm@ornl.gov; hlliu@ecust.edu.cn; dais@ornl.gov FU National Key Technologies RD Program [2015BAC04B01]; 111 Project of China [B08021]; U.S. Department of Energy, Office of Science, Basic Energy Sciences (BES), Chemical Sciences, Geosciences, and Biosciences Division FX H. Li and H. Liu thank the National Key Technologies R&D Program (2015BAC04B01), the National Natural Science Foundation of China (No. 91334203), and the 111 Project of China (No. B08021). Work by S. Mahurin and S. Dai was supported by the U.S. Department of Energy, Office of Science, Basic Energy Sciences (BES), Chemical Sciences, Geosciences, and Biosciences Division. NR 24 TC 0 Z9 0 U1 9 U2 9 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 2016 VL 6 IS 111 BP 110307 EP 110311 DI 10.1039/c6ra18307g PG 5 WC Chemistry, Multidisciplinary SC Chemistry GA EE1OD UT WOS:000389350700107 ER PT J AU Sa, N Rajput, NN Wang, H Key, B Ferrandon, M Srinivasan, V Persson, KA Burrell, AK Vaughey, JT AF Sa, Niya Rajput, Nav Nidhi Wang, Hao Key, Baris Ferrandon, Magali Srinivasan, Venkat Persson, Kristin A. Burrell, Anthony K. Vaughey, John T. TI Concentration dependent electrochemical properties and structural analysis of a simple magnesium electrolyte: magnesium bis(trifluoromethane sulfonyl)imide in diglyme SO RSC ADVANCES LA English DT Article ID RECHARGEABLE MG BATTERIES; ION BATTERIES; CATHODE; INTERCALATION; STABILITY; DEPOSITION; CHALLENGE; STORAGE; FILMS; MGCL2 AB Development of Mg electrolytes that can plate/strip Mg is not trivial and remains one of the major roadblocks to advance Mg battery research. Halogen-free electrolyte has attracted great attention due to its high stability, less corrosive nature and compatibility with Mg metal anodes. However, the electrochemical properties of such electrolytes have not been analytically evaluated in the literature. Herein, we report a systematic study of the concentration-dependent electrochemical and mass transport properties of a non-aqueous, halogen-free Mg electrolyte composed of magnesium bis(trifluoromethane sulfonyl) imide in diglyme (Mg(TFSI)(2)/G2). Specifically, cyclic voltammograms confirm that plating and stripping of Mg in Mg(TFSI)(2)/G2 electrolyte occur over a wide concentration range. Results suggest a comparably difficult magnesium dissolution in Mg(TFSI)(2)/G2 electrolyte in contrast to in Grignard based electrolytes. Dissolution overpotential shows a non-monotonic dependence on electrolyte concentration, it requires an similar to 2 V overpotential to deposit Mg. Findings also reveal concentration-dependent mass transport properties, including concentration-dependent electrolyte diffusivity and transference number. The atomic environment of the Mg(TFSI)(2)/G2, as being further explored by Nuclear Magnetic Resonance (NMR) measurement and Molecular Dynamics (MD) simulations, is coupled with the electrochemical measurements to explain the observed concentration-dependent mass transport properties. C1 [Sa, Niya; Wang, Hao; Key, Baris; Ferrandon, Magali; Burrell, Anthony K.; Vaughey, John T.] Argonne Natl Lab, JCESR, Lemont, IL 60439 USA. [Sa, Niya; Wang, Hao; Key, Baris; Ferrandon, Magali; Burrell, Anthony K.; Vaughey, John T.] Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA. [Rajput, Nav Nidhi; Srinivasan, Venkat; Persson, Kristin A.] Lawrence Berkeley Natl Lab, Environm Energy Technol Div, Berkeley, CA 94720 USA. [Persson, Kristin A.] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA. RP Burrell, AK (reprint author), Argonne Natl Lab, JCESR, Lemont, IL 60439 USA.; Burrell, AK (reprint author), Argonne Natl Lab, Chem Sci & Engn Div, Argonne, IL 60439 USA. EM burrell@anl.gov; vaughey@anl.gov RI SA, NIYA/E-8521-2017 FU Joint Center for Energy Storage Research (JCESR); Energy Innovation Hub - U.S. Department of Energy, Office of Science, Basic Energy Sciences; U.S. Department of Energy Office of Science laboratory [DE-AC02-06CH11357]; U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357] FX This work was supported as part of the Joint Center for Energy Storage Research (JCESR), an Energy Innovation Hub funded by the U.S. Department of Energy, Office of Science, Basic Energy Sciences. The submitted manuscript has been created by UChicago Argonne, LLC, Operator of Argonne National Laboratory ("Argonne"), a U.S. Department of Energy Office of Science laboratory, under contract no. DE-AC02-06CH11357. This research used resources at the Electron Microscopy Center (EMC) in the Center for Nanoscale Materials of Argonne, supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. The author would like to thank Rachel E. Koritala and Jie Wang for the technical support of the Argonne EMC facilities. NR 40 TC 1 Z9 1 U1 13 U2 13 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 2016 VL 6 IS 114 BP 113663 EP 113670 DI 10.1039/c6ra22816j PG 8 WC Chemistry, Multidisciplinary SC Chemistry GA EE8VR UT WOS:000389905300105 ER PT J AU Yuan, B Brandt, JA Shaw, S Mohapatra, P Cademartiri, L AF Yuan, Bin Brandt, Jordan Aaron Shaw, Santosh Mohapatra, Pratyasha Cademartiri, Ludovico TI Towards bulk syntheses of nanomaterials: a homeostatically supersaturated synthesis of polymer-like Bi2S3 nanowires with nearly 100% yield and no injection SO RSC ADVANCES LA English DT Article ID HIGH-QUALITY; NANOCRYSTALS; SIZE; NANOSTRUCTURES; SEMICONDUCTOR; NANOPARTICLES; KINETICS; SCALE AB This paper reports the implementation of a one-pot strategy for the synthesis of polymer-like Bi2S3 nanowires from supersaturated precursors. These conditions result in (i) a homeostatically regulated supersaturation of the growing phase during most of the reaction, (ii) a nearly 100% conversion of the limiting reagent, and (iii) an improved colloidal stability and polydispersity of the product (when compared to the hot-injection product) that allows the identification of three new exciton transitions in the absorption spectrum (one of them, importantly, being a weakly absorbing ground state at 1.64 eV). Three different commercial sources of ligands do not yield significantly different conversion rates. Scalability is further improved by lack of stirring after the initial stage of reaction and a lower reaction temperature (90 degrees C). C1 [Yuan, Bin; Brandt, Jordan Aaron; Shaw, Santosh; Mohapatra, Pratyasha; Cademartiri, Ludovico] Iowa State Univ Sci & Technol, Dept Mat Sci & Engn, 2220 Hoover Hall, Ames, IA 50011 USA. [Yuan, Bin; Cademartiri, Ludovico] Iowa State Univ Sci & Technol, Dept Chem & Biol Engn, Sweeney Hall, Ames, IA 50011 USA. [Cademartiri, Ludovico] US DOE, Ames Lab, Ames, IA 50011 USA. RP Cademartiri, L (reprint author), Iowa State Univ Sci & Technol, Dept Mat Sci & Engn, 2220 Hoover Hall, Ames, IA 50011 USA.; Cademartiri, L (reprint author), Iowa State Univ Sci & Technol, Dept Chem & Biol Engn, Sweeney Hall, Ames, IA 50011 USA.; Cademartiri, L (reprint author), US DOE, Ames Lab, Ames, IA 50011 USA. EM lcademar@iastate.edu FU Iowa State University FX The work was sponsored by Iowa State University through a startup grant to LC. NR 29 TC 0 Z9 0 U1 4 U2 4 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 2016 VL 6 IS 114 BP 113815 EP 113819 DI 10.1039/c6ra20772c PG 5 WC Chemistry, Multidisciplinary SC Chemistry GA EE8VR UT WOS:000389905300125 ER PT J AU Mansouri, K Grulke, CM Richard, AM Judson, RS Williams, AJ AF Mansouri, K. Grulke, C. M. Richard, A. M. Judson, R. S. Williams, A. J. TI An automated curation procedure for addressing chemical errors and inconsistencies in public datasets used in QSAR modelling SO SAR AND QSAR IN ENVIRONMENTAL RESEARCH LA English DT Article; Proceedings Paper CT 17th International Conference on QSAR in Environmental and Health Sciences (QSAR) CY JUN 13-17, 2016 CL Miami Beach, FL DE data curation; standardization; QSAR modelling; physicochemical properties; Open Data ID MULTICRITERIA DECISION-MAKING; PARTITION-COEFFICIENTS; APPLICABILITY DOMAIN; OUTLIER DETECTION; PLS-REGRESSION; VALIDATION; PREDICTION; SELECTION; RANKING; CHEMINFORMATICS AB The increasing availability of large collections of chemical structures and associated experimental data provides an opportunity to build robust QSAR models for applications in different fields. One common concern is the quality of both the chemical structure information and associated experimental data. Here we describe the development of an automated KNIME workflow to curate and correct errors in the structure and identity of chemicals using the publicly available PHYSPROP physicochemical properties and environmental fate datasets. The workflow first assembles structure-identity pairs using up to four provided chemical identifiers, including chemical name, CASRNs, SMILES, and MolBlock. Problems detected included errors and mismatches in chemical structure formats, identifiers and various structure validation issues, including hypervalency and stereochemistry descriptions. Subsequently, a machine learning procedure was applied to evaluate the impact of this curation process. The performance of QSAR models built on only the highest-quality subset of the original dataset was compared with the larger curated and corrected dataset. The latter showed statistically improved predictive performance. The final workflow was used to curate the full list of PHYSPROP datasets, and is being made publicly available for further usage and integration by the scientific community. C1 [Mansouri, K.] Oak Ridge Inst Sci & Educ ORISE, Oak Ridge, TN 37830 USA. [Mansouri, K.; Grulke, C. M.; Richard, A. M.; Judson, R. S.; Williams, A. J.] US EPA, Off Res & Dev, Natl Ctr Computat Toxicol, Res Triangle Pk, NC USA. RP Williams, AJ (reprint author), US EPA, Off Res & Dev, Natl Ctr Computat Toxicol, Res Triangle Pk, NC USA. EM williams.antony@epa.gov NR 47 TC 2 Z9 2 U1 3 U2 3 PU TAYLOR & FRANCIS LTD PI ABINGDON PA 2-4 PARK SQUARE, MILTON PARK, ABINGDON OR14 4RN, OXON, ENGLAND SN 1062-936X EI 1029-046X J9 SAR QSAR ENVIRON RES JI SAR QSAR Environ. Res. PY 2016 VL 27 IS 11 BP 911 EP 937 DI 10.1080/1062936X.2016.1253611 PN 2 PG 27 WC Chemistry, Multidisciplinary; Computer Science, Interdisciplinary Applications; Environmental Sciences; Mathematical & Computational Biology; Toxicology SC Chemistry; Computer Science; Environmental Sciences & Ecology; Mathematical & Computational Biology; Toxicology GA EE1PY UT WOS:000389355800003 PM 27885862 ER PT S AU Lordi, V Varley, JB He, XQ Rockett, AA Bailey, J Zapalac, GH Mackie, N Poplayskyy, D Bayman, A AF Lordi, Vincenzo Varley, Joel B. He, Xiaoqing Rockett, Angus A. Bailey, Jeff Zapalac, Geordie H. Mackie, Neil Poplayskyy, Dmitry Bayman, Atiye BE Heben, MJ AlJassim, MM TI Design of optimal buffer layers for CuInGaSe2 thin-film solar cells SO THIN FILMS FOR SOLAR AND ENERGY TECHNOLOGY VIII SE Proceedings of SPIE LA English DT Proceedings Paper CT Conference on Thin Films for Solar and Energy Technology VIII CY AUG 28-29, 2016 CL San Diego, CA SP SPIE C1 [Lordi, Vincenzo; Varley, Joel B.] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. [He, Xiaoqing; Rockett, Angus A.] Univ Illinois, Champaign, IL USA. [Bailey, Jeff; Zapalac, Geordie H.; Mackie, Neil; Poplayskyy, Dmitry; Bayman, Atiye] MiaSole Hitech Corp, Santa Clara, CA USA. RP Lordi, V (reprint author), Lawrence Livermore Natl Lab, Livermore, CA 94550 USA. NR 0 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 978-1-5106-0264-9 J9 PROC SPIE PY 2016 VL 9936 AR 993609 DI 10.1117/12.2237243 PG 1 WC Energy & Fuels; Materials Science, Coatings & Films; Optics SC Energy & Fuels; Materials Science; Optics GA BG5WA UT WOS:000389776300005 ER PT S AU Kumar, SD Thapliyal, H Mohammad, A Singh, V Perumalla, KS AF Kumar, S. Dinesh Thapliyal, Himanshu Mohammad, Azhar Singh, Vijay Perumalla, Kalyan S. GP IEEE TI Energy-Efficient and Secure S-Box Circuit using Symmetric Pass Gate Adiabatic Logic SO 2016 IEEE Computer Society Annual Symposium on VLSI (ISVLSI) SE IEEE Computer Society Annual on VLSI LA English DT Proceedings Paper CT IEEE-Computer-Society Annual Symposium on VLSI (ISVLSI) CY JUL 11-13, 2016 CL Pittsburgh, PA SP IEEE, IEEE Comp Soc, IEEE Comp Soc Tech Comm VLSI, IEEE Council Elect Design Automat, IEEE CAS DE Differential Power Analysis (DPA); Low-power hardware; Adiabatic logic; S-Box; Symmetric Pass Gate Adiabatic Logic (SPGAL) ID POWER ANALYSIS ATTACKS AB Differential Power Analysis (DPA) attack is considered to be a main threat while designing cryptographic processors. In cryptographic algorithms like DES and AES, S-Box is used to indeterminate the relationship between the keys and the cipher texts. However, S-box is prone to DPA attack due to its high power consumption. In this paper, we are implementing an energy-efficient 8-bit S-Box circuit using our proposed Symmetric Pass Gate Adiabatic Logic (SPGAL). SPGAL is energy-efficient as compared to the existing DPA-resistant adiabatic and non-adiabatic logic families. SPGAL is energy-efficient due to reduction of non-adiabatic loss during the evaluate phase of the outputs. Further, the S-Box circuit implemented using SPGAL is resistant to DPA attacks. The results are verified through SPICE simulations in 180nm technology. SPICE simulations show that the SPGAL based S-Box circuit saves upto 92% and 67% of energy as compared to the conventional CMOS and Secured Quasi-Adiabatic Logic (SQAL) based S-Box circuit. From the simulation results, it is evident that the SPGAL based circuits are energy-efficient as compared to the existing DPA-resistant adiabatic and non-adiabatic logic families. In nutshell, SPGAL based gates can be used to build secure hardware for low-power portable electronic devices and Internet-of-Things (IoT) based electronic devices. C1 [Kumar, S. Dinesh; Thapliyal, Himanshu; Mohammad, Azhar; Singh, Vijay] Univ Kentucky, Dept Elect & Comp Engn, Lexington, KY 40506 USA. [Perumalla, Kalyan S.] Oak Ridge Natl Lab, Oak Ridge, TN USA. RP Thapliyal, H (reprint author), Univ Kentucky, Dept Elect & Comp Engn, Lexington, KY 40506 USA. EM hthapliyal@uky.edu 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 2159-3477 BN 978-1-4673-9039-2 J9 IEEE COMP SOC ANN PY 2016 BP 308 EP 313 DI 10.1109/ISVLSI.2016.45 PG 6 WC Computer Science, Hardware & Architecture; Engineering, Electrical & Electronic SC Computer Science; Engineering GA BG5IZ UT WOS:000389508400053 ER PT S AU Rudy, RQ Pulskamp, JS Bedair, SS Puder, JM Polcawich, RG AF Rudy, Ryan Q. Pulskamp, Jeffrey S. Bedair, Sarah S. Puder, Jonathan M. Polcawich, Ronald G. GP IEEE TI Piezoelectric Disk Flexure Resonator with 1 dB Loss SO 2016 IEEE International Frequency Control Symposium (IFCS) SE IEEE International Frequency Control Symposium LA English DT Proceedings Paper CT IEEE International Frequency Control Symposium (IFCS) CY MAY 09-12, 2016 CL New Orleans, LA SP IEEE, UFFC DE Resonator; filter; flexure; PZT; MEMS AB Disk-flexure PZT-on-silicon resonators exhibited peak |S21| of 1 dB with insertion loss of 0.92 dB. Ferroelectric tuning of bandwidth (> 50%), and coupling(> 35%), are demonstrated with an insertion loss penalty of 0.6 dB. Power handling measurements showed less than 1 dB compression up to the +15 dBm limit of the network analyzer. The disk-flexure resonator was monolithically integrated with length extension resonators, allowing for varied coupling and quality factor with similar insertion loss, and figure of merit in the same wafer. C1 [Rudy, Ryan Q.; Pulskamp, Jeffrey S.; Bedair, Sarah S.; Polcawich, Ronald G.] US Army, Res Lab, Sensors & Electron Devices Directorate, Adelphi, MD 20783 USA. [Puder, Jonathan M.] Oak Ridge Inst Sci & Educ, Oak Ridge, TN USA. [Puder, Jonathan M.] Cornell Univ, Dept Mech Engn, Ithaca, NY USA. RP Rudy, RQ (reprint author), US Army, Res Lab, Sensors & Electron Devices Directorate, Adelphi, MD 20783 USA. 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 SN 1075-6787 BN 978-1-5090-2091-1 J9 P IEEE INT FREQ CONT PY 2016 BP 302 EP 305 PG 4 WC Engineering, Electrical & Electronic; Physics, Applied; Telecommunications SC Engineering; Physics; Telecommunications GA BG4WK UT WOS:000389204500076 ER PT J AU Arendt, D Best, D Burtner, R Paul, CL AF Arendt, Dustin Best, Dan Burtner, Russ Paul, Celeste Lyn BE Best, DM Staheli, D Prigent, N Engle, S Harrison, L TI CyberPetri at CDX 2016: Real-time Network Situation Awareness SO 2016 IEEE Symposium on Visualization for Cyber Security (VizSec) LA English DT Proceedings Paper CT IEEE Symposium on Visualization for Cyber Security (VizSec) CY OCT 24, 2016 CL IEEE VIS, Baltimore, MD SP IEEE HO IEEE VIS DE Cybersecurity; situation awareness; visualization; C.2.3 Computer-Communication Networks]: Network Operations; network management, network monitoring AB CyberPetri is a novel visualization technique that provides a flexible map of the network based on available characteristics, such as IP address, operating system, or service. Previous work introduced CyberPetri as a visualization feature in Ocelot, a network defense tool that helped security analysts understand and respond to an active defense scenario. In this paper we present a case study in which we use CyberPetri to support real-time situation awareness during the 2016 Cyber Defense Exercise. C1 [Arendt, Dustin; Best, Dan; Burtner, Russ] Pacific Northwest Natl Lab, Richland, WA 99354 USA. [Paul, Celeste Lyn] Dept Def, Arlington, VA USA. RP Arendt, D (reprint author), Pacific Northwest Natl Lab, Richland, WA 99354 USA. NR 3 TC 0 Z9 0 U1 1 U2 1 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA BN 978-1-5090-1605-1 PY 2016 PG 4 WC Computer Science, Information Systems SC Computer Science GA BG4XU UT WOS:000389256700010 ER PT S AU Ainsworth, N Hariri, A Prabakar, K Pratt, A Baggu, M AF Ainsworth, Nathan Hariri, Ali Prabakar, Kumaraguru Pratt, Annabelle Baggu, Murali BE Gao, DW Muljadi, E Zhang, J Khodaei, A TI Modeling and Compensation Design for a Power Hardware-in-the-Loop Simulation of an AC Distribution System SO 2016 North American Power Symposium (NAPS) SE North American Power Symposium LA English DT Proceedings Paper CT 48th North American Power Symposium (NAPS) CY SEP 18-20, 2016 CL Univ Denver, Denver, CO SP IEEE, IEEE Power & Energy Soc, NAPS student Program, U S Natl Sci Fdn, Xcel Energy, Natl Renewable Energy Lab, ABB, Burns & McDonnell, Nayak Corp PSCAD RTDS, Western Area Power Adm, Tri-State Generat & Transmission Assoc, Ulteig, IEEE PES Young Professionals, Colorado Springs Utilities HO Univ Denver DE Power system simulation; Power system dynamics; Stability analysis; Power Hardware-in-the-Loop ID ACCURACY AB Power hardware-in-the-loop (PHIL) simulation, where actual hardware under test is coupled with a real-time digital model in closed loop, is a powerful tool for analyzing new methods of control for emerging distributed power systems. However, without careful design and compensation of the interface between the simulated and actual systems, PHIL simulations may exhibit instability and modeling inaccuracies. This paper addresses issues that arise in the PHIL simulation of a hardware battery inverter interfaced with a simulated distribution feeder. Both the stability and accuracy issues are modeled and characterized, and a methodology for design of PHIL interface compensation to ensure stability and accuracy is presented. The stability and accuracy of the resulting compensated PHIL simulation is then shown by experiment. C1 [Ainsworth, Nathan; Hariri, Ali; Prabakar, Kumaraguru; Pratt, Annabelle; Baggu, Murali] Natl Renewable Energy Lab, 15013 Denver West Pkwy, Golden, CO 80401 USA. RP Ainsworth, N (reprint author), Natl Renewable Energy Lab, 15013 Denver West Pkwy, Golden, CO 80401 USA. EM Nathan.Ainsworth@nrel.gov; ahh13@my.fsu.edu; Kumaraguru.Prabakar@nrel.gov; Annabelle.Pratt@nrel.gov; Murali.Baggu@nrel.gov 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 2163-4939 BN 978-1-5090-3270-9 J9 NORTH AMER POW SYMP PY 2016 PG 6 WC Energy & Fuels; Engineering, Electrical & Electronic SC Energy & Fuels; Engineering GA BG4ZY UT WOS:000389280900110 ER PT S AU Alvidrez, J Ranade, S Brahma, S Bukowski, S Silva-Monroy, C Ellis, A AF Alvidrez, Javier Ranade, Satish Brahma, Sukumar Bukowski, Steve Silva-Monroy, Cesar Ellis, Abraham BE Gao, DW Muljadi, E Zhang, J Khodaei, A TI An Analytical Model of a Single Phase DQ-Controlled Inverter for Power System Short Circuit Calculations SO 2016 North American Power Symposium (NAPS) SE North American Power Symposium LA English DT Proceedings Paper CT 48th North American Power Symposium (NAPS) CY SEP 18-20, 2016 CL Univ Denver, Denver, CO SP IEEE, IEEE Power & Energy Soc, NAPS student Program, U S Natl Sci Fdn, Xcel Energy, Natl Renewable Energy Lab, ABB, Burns & McDonnell, Nayak Corp PSCAD RTDS, Western Area Power Adm, Tri-State Generat & Transmission Assoc, Ulteig, IEEE PES Young Professionals, Colorado Springs Utilities HO Univ Denver AB The short-circuit contribution of Inverter interfaced systems is determined by the control architecture, generally limited to 110%-150% of rated current and is generally not sustained past a cycle or two. IEEE1574 compliant inverters with anti-islanding may trip without contributing to a fault. However, as technology moves towards ride-through for remote faults, the modeling of these inverters becomes important. Based on reasonable approximations of the controller response we derive a simple yet accurate analytical model for the fault contribution of a single phase dq-controlled inverter. The derived model is compatible with typical fault calculation programs. C1 [Alvidrez, Javier; Ranade, Satish; Brahma, Sukumar] New Mexico State Univ, Klipsch Sch Elect & Comp Engn, Las Cruces, NM 88003 USA. [Bukowski, Steve] El Paso Elect Co, 100 North Stanton, El Paso, TX 79901 USA. [Silva-Monroy, Cesar; Ellis, Abraham] Sandia Natl Labs, Albuquerque, NM 87123 USA. RP Alvidrez, J (reprint author), New Mexico State Univ, Klipsch Sch Elect & Comp Engn, Las Cruces, NM 88003 USA. EM jaalvidr@nmsu.edu; sranade@nmsu.edu; sbrahma@nmsu.edu; sbukowski@epelectric.com; casilv@sandia.gov; aellis@sandia.gov NR 9 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2163-4939 BN 978-1-5090-3270-9 J9 NORTH AMER POW SYMP PY 2016 PG 5 WC Energy & Fuels; Engineering, Electrical & Electronic SC Energy & Fuels; Engineering GA BG4ZY UT WOS:000389280900145 ER PT S AU Baker, K Dall'Anese, E Summers, T AF Baker, Kyri Dall'Anese, Emiliano Summers, Tyler BE Gao, DW Muljadi, E Zhang, J Khodaei, A TI Distribution-Agnostic Stochastic Optimal Power Flow for Distribution Grids SO 2016 North American Power Symposium (NAPS) SE North American Power Symposium LA English DT Proceedings Paper CT 48th North American Power Symposium (NAPS) CY SEP 18-20, 2016 CL Univ Denver, Denver, CO SP IEEE, IEEE Power & Energy Soc, NAPS student Program, U S Natl Sci Fdn, Xcel Energy, Natl Renewable Energy Lab, ABB, Burns & McDonnell, Nayak Corp PSCAD RTDS, Western Area Power Adm, Tri-State Generat & Transmission Assoc, Ulteig, IEEE PES Young Professionals, Colorado Springs Utilities HO Univ Denver DE Distribution systems; optimal power flow; chance constraints; renewable integration; voltage regulation ID PHOTOVOLTAIC INVERTERS; ROBUST OPTIMIZATION; OPTIMAL DISPATCH; SYSTEMS; APPROXIMATION; UNCERTAINTY; PROGRAMS; RISK AB This paper outlines a data-driven, distributionally robust approach to solve chance-constrained AC optimal power flow problems in distribution networks. Uncertain forecasts for loads and power generated by photovoltaic (PV) systems are considered, with the goal of minimizing PV curtailment while meeting power flow and voltage regulation constraints. A datadriven approach is utilized to develop a distributionally robust conservative convex approximation of the chance-constraints; particularly, the mean and covariance matrix of the forecast errors are updated online, and leveraged to enforce voltage regulation with predetermined probability via Chebyshev-based bounds. By combining an accurate linear approximation of the AC power flow equations with the distributionally robust chance constraint reformulation, the resulting optimization problem becomes convex and computationally tractable. C1 [Baker, Kyri; Dall'Anese, Emiliano] Natl Renewable Energy Lab, Golden, CO 80401 USA. [Summers, Tyler] Univ Texas Dallas, Dept Mech Engn, Richardson, TX 75083 USA. RP Baker, K (reprint author), Natl Renewable Energy Lab, Golden, CO 80401 USA. EM kyri.baker@nrel.gov; emiliano.dallanese@nrel.gov; tyler.summers@utdallas.edu 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 2163-4939 BN 978-1-5090-3270-9 J9 NORTH AMER POW SYMP PY 2016 PG 6 WC Energy & Fuels; Engineering, Electrical & Electronic SC Energy & Fuels; Engineering GA BG4ZY UT WOS:000389280900130 ER PT S AU Cole, WJ Marcy, C Krishnan, VK Margolis, R AF Cole, Wesley J. Marcy, Cara Krishnan, Venkat K. Margolis, Robert BE Gao, DW Muljadi, E Zhang, J Khodaei, A TI Utility-scale Lithium-Ion Storage Cost Projections for Use in Capacity Expansion Models SO 2016 North American Power Symposium (NAPS) SE North American Power Symposium LA English DT Proceedings Paper CT 48th North American Power Symposium (NAPS) CY SEP 18-20, 2016 CL Univ Denver, Denver, CO SP IEEE, IEEE Power & Energy Soc, NAPS student Program, U S Natl Sci Fdn, Xcel Energy, Natl Renewable Energy Lab, ABB, Burns & McDonnell, Nayak Corp PSCAD RTDS, Western Area Power Adm, Tri-State Generat & Transmission Assoc, Ulteig, IEEE PES Young Professionals, Colorado Springs Utilities HO Univ Denver DE lithium-ion batteries; storage; capacity expansion; ReEDS ID BATTERY STORAGE AB This work presents U.S. utility-scale battery storage cost projections for use in capacity expansion models. We create battery cost projections based on a survey of literature cost projections of battery packs and balance of system costs, with a focus on lithium-ion batteries. Low, mid, and high cost trajectories are created for the overnight capital costs and the operating and maintenance costs. We then demonstrate the impact of these cost projections in the Regional Energy Deployment System (ReEDS) capacity expansion model. We find that under reference scenario conditions, lower battery costs can lead to increased penetration of variable renewable energy, with solar photovoltaics (PV) seeing the largest increase. We also find that additional storage can reduce renewable energy curtailment, although that comes at the expense of additional storage losses. C1 [Cole, Wesley J.; Marcy, Cara; Krishnan, Venkat K.; Margolis, Robert] Natl Renewable Energy Lab, Strateg Energy Anal Ctr, Golden, CO 80401 USA. RP Cole, WJ (reprint author), Natl Renewable Energy Lab, Strateg Energy Anal Ctr, Golden, CO 80401 USA. EM wesley.cole@nrel.gov 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 2163-4939 BN 978-1-5090-3270-9 J9 NORTH AMER POW SYMP PY 2016 PG 6 WC Energy & Fuels; Engineering, Electrical & Electronic SC Energy & Fuels; Engineering GA BG4ZY UT WOS:000389280900035 ER PT S AU Gu, Y Jiang, HG Zhang, YC Zhang, JJ Gao, TL Muljadi, E AF Gu, Yi Jiang, Huaiguang Zhang, Yingchen Zhang, Jun Jason Gao, Tianlu Muljadi, Eduard BE Gao, DW Muljadi, E Zhang, J Khodaei, A TI Knowledge Discovery for Smart Grid Operation, Control, and Situation Awareness -A Big Data Visualization Platform SO 2016 North American Power Symposium (NAPS) SE North American Power Symposium LA English DT Proceedings Paper CT 48th North American Power Symposium (NAPS) CY SEP 18-20, 2016 CL Univ Denver, Denver, CO SP IEEE, IEEE Power & Energy Soc, NAPS student Program, U S Natl Sci Fdn, Xcel Energy, Natl Renewable Energy Lab, ABB, Burns & McDonnell, Nayak Corp PSCAD RTDS, Western Area Power Adm, Tri-State Generat & Transmission Assoc, Ulteig, IEEE PES Young Professionals, Colorado Springs Utilities HO Univ Denver DE Big data; knowledge discovery; smart sensor; Apache Spark; geographic information system; parallel computation ID SYSTEMS; ENERGY AB In this paper, a big data visualization platform is designed to discover the hidden useful knowledge for smart grid (SG) operation, control and situation awareness. The spawn of smart sensors at both grid side and customer side can provide large volume of heterogeneous data that collect information in all time spectrums. Extracting useful knowledge from this big-data poll is still challenging. In this paper, the Apache Spark, an open source cluster computing framework, is used to process the big-data to effectively discover the hidden knowledge. A highspeed communication architecture utilizing the Open System Interconnection (OSI) model is designed to transmit the data to a visualization platform. This visualization platform uses Google Earth, a global geographic information system (GIS) to link the geological information with the SG knowledge and visualize the information in user defined fashion. The University of Denver's campus grid is used as a SG test bench and several demonstrations are presented for the proposed platform. C1 [Jiang, Huaiguang; Zhang, Yingchen; Muljadi, Eduard] Natl Renewable Energy Lab, Golden, CO 80401 USA. [Gu, Yi; Zhang, Jun Jason; Gao, Tianlu] Univ Denver, Denver, CO 80210 USA. RP Gu, Y (reprint author), Univ Denver, Denver, CO 80210 USA. NR 25 TC 0 Z9 0 U1 0 U2 0 PU IEEE PI NEW YORK PA 345 E 47TH ST, NEW YORK, NY 10017 USA SN 2163-4939 BN 978-1-5090-3270-9 J9 NORTH AMER POW SYMP PY 2016 PG 6 WC Energy & Fuels; Engineering, Electrical & Electronic SC Energy & Fuels; Engineering GA BG4ZY UT WOS:000389280900061 ER EF