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Displaying 19026 - 19050 of 73930

Classical simulation of Yang-Baxter gates

November 3, 2014
Author(s)
Stephen P. Jordan, Gorjan Alagic, Aniruddha Bapat
A unitary operator that satisfies the constant Yang-Baxter equation immediately yields a unitary representation of the braid group Bn for every n ≥ 2. If we view such an operator as a quantum-computational gate, then topological braiding corresponds to a

Fast Neutron Detection with a Segmented Spectrometer

November 3, 2014
Author(s)
Jeffrey S. Nico, T J. Langford, Christopher D. Bass, H Breuer, Craig Heimbach, D. K. Erwin
A fast neutron spectrometer consisting of segmented plastic scintillator and He-3 proportional counters was constructed for the measurement of neutrons in the energy range 1 MeV to 200 MeV. We discuss its design, principles of operation, and the method of

Functorial Data Migration: From Theory to Practice

November 3, 2014
Author(s)
Eswaran Subrahmanian, Ryan Wisnesky, David Spivak, Patrick Schultz
In this paper we describe a functorial data migration [6] scenario about the manufacturing service capability of a distributed supply chain. The scenario is a category-theoretic analog of an OWL ontology-based \semantic enrichment" scenario [5] developed

International Key Comparison of Neutron Fluence Measurements in Monoenergetic Neutron Fields CCRI(III)-K11

November 3, 2014
Author(s)
Maynard S. Dewey, V. Gressier, A. C. Bonaldi, David M. Gilliam, H. Harano, A. Masuda, T Matsumoto, N. Moiseev, Jeffrey S. Nico, R. Notle, S. Oberstedt, N. J. Roberts, S. Rottger, D. J. Thomas
To ensure the validity of their national standards, National Metrology Institutes, NMIs, participate regularly in international comparisons. In the area of neutron metrology, Section III of the Consultative Committee for Ionizing Radiation is in charge of

NIST Handbook 133: Checking the Net Contents of Packaged Goods (2015 Ed.)

November 3, 2014
Author(s)
Linda D. Crown, David Sefcik, Lisa Warfield
This handbook has been prepared as a procedural guide for the compliance testing of net contents statements on packaged goods. Compliance testing of packaged goods is the determination of the conformance results of the packaging, distribution, and

Observations of Dicke narrowing and speed dependence in air-broadened CO2 lineshape near 2.06 um

November 3, 2014
Author(s)
Thinh Q. Bui, David Long, Agata Cygan, Vincent T. Sironneau, Daniel Hogan, Priyanka M. Rapusinghe, Mitchio Okumura
Frequency-stabilized cavity ring-down spectroscopy (FS-CRDS) was used to study CO2 lineshapes in the (20013)←(00001) band centered near 2.06 um. Two rovibrational transitions were chosen for this study to measure non-Voigt collisional effects for air

Scattering resonances and bound states for strongly interacting Rydberg polaritons

November 3, 2014
Author(s)
Przemek Bienias, Soonwon Choi, Ofer Firstenberg, Mohammad F. Maghrebi, Mikhail Lukin, Alexey Gorshkov, Hans Peter Buchler
We provide a rigorous framework describing a low-density gas of slow-light polaritons propagating in one dimension under the conditions of electromagnetically induced transparency and interacting via strong Rydberg-Rydberg interactions. Specifically, we

Which resonances in small metallic nanoparticles are plasmonic?

November 3, 2014
Author(s)
Emily Townsend, Garnett W. Bryant
We use time-dependent density functional theory to examine the character of various resonances corresponding to peaks in the optical response of small metallic nanoparticles. Each resonance has both "sloshing" and "inversion" character. The sloshing mode

ATMP-Stabilized Iron Nanoparticles: Chelator-Controlled Nanoparticle Synthesis

November 1, 2014
Author(s)
Lauren F. Greenlee, Nikki S. Rentz, Roy H. Geiss
Iron nanoparticles are of interest in fields such as water treatment and alternative energy due to their reactive properties and low cost. When combined with other metals, iron-metal nanoparticles can act as catalysts for a diverse set of reactions. In

Change in the Magnetic Structure of (Bi,Sm)FeO 3 Thin Films at the Morphotropic Phase Boundary Probed by Neutron Diffraction

November 1, 2014
Author(s)
Shingo Maruyama, Varatharajan Anbusathaiah, Amy Fennell, Mechthild Enderle, Ichiro Takeuchi, William D. Ratcliff
We report on the evolution of the magnetic structure of BiFeO 3 thin films grown on SrTiO 3 substrates as a function of Sm doping. We determined the magnetic structure using neutron diffration. We found that as Sm increases, the magnetic structure evolves

Details of the Magnetization Reversal in Patterned Exchange-biased and Unbiased Thin Films

November 1, 2014
Author(s)
Robert D. Shull, Y. P. Kabanov, Andrew P. Chen, Cindi L. Dennis, V S. Gornakov, Valerian I. Nikitenko
New features of the magnetization reversal of a patterned bilayer in the form of a square mesh consisting of 16 um wide intersecting stripes of Ni(sub79)Fe(sub21) (30 nm) exchange-coupled with IrMn (10 um) on top were revealed via use of the advanced

Direct evidence of active and inactive phases of Fe catalyst nanoparticles for carbon nanotube formation

November 1, 2014
Author(s)
Stefano Mazzuccoo, Ying Wang, Mihaela M. Tanase, Matthieu C. Picher, Kai Li, Zhijian WU, Stephan Irle, Renu Sharma
Iron and carbon interactions play an important role in various industrial processes such as steel manufacturing, liquid fuel the production by Fischer Tropsch process and carbon nanotube synthesis by chemical vapor deposition process. Interestingly, iron

GenApp Module Execution and Airavata Integration

November 1, 2014
Author(s)
Emre H. Brookes, Nadeem Anjum, Joseph E. Curtis, Suresh Marru, Raminder Singh, Marlon Pierce
A new framework (GenApp) for rapid generation of scientific applications running on a variety of systems including science gateways has recently been developed. This framework builds a user interface for a variety of target environments on a collection of

Toward Smart Manufacturing Using Decision Guidance Analytics

November 1, 2014
Author(s)
Alexander Brodsky, Mohan Krishnamoorthy, Daniel A. Menasce, Guodong Shao, Sudarsan Rachuri
This paper is focused on decision analytics for smart manufacturing. We consider temporal manufacturing processes with stochastic throughput and inventories. We demonstrate the use of the recently proposed concept of the decision guidance analytics
Displaying 19026 - 19050 of 73930
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