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NIST Authors in Bold

Displaying 33951 - 33975 of 73697

Generalized Entanglement and Quantum Phase Transitions

July 30, 2006
Author(s)
Rolando Somma, Howard Barnum, Emanuel Knill, Gerardo Ortiz, Lorenza Viola
Effective visualizations can help researchers obtain a more complete understanding of high-level mathematical functions that arise in mathematics, statistics, physics, fluid dynamics and other fields of the mathematical and physical sciences. Accordingly

Thermal Neutron Demagnetization of NdFeB Magnets

July 30, 2006
Author(s)
R Klaffky, Richard M. Lindstrom, Brian B. Maranville, Robert D. Shull, B Micklich, J Vacca
To isolate the effect that thermal neutrons have on Nd2Fe14B permanent magnets, the magnetization and coercivity were studied as a function of dose. The changes in remanent magnetization are substantial and are attributed to boron thermal neutron capture

Electrochemical Study of Chitosan Films Deposited on Gold Electrodes

July 28, 2006
Author(s)
Rebecca A. Zangmeister, J J. Park, G W. Rubloff, Michael J. Tarlov
We report the electrochemical characterization of chitosan films deposited on gold electrodes. Cyclic voltammetry was used to characterize the deposition and electroactivity of chitosan coated gold electrodes. Chitosan films were found to deposit at a gold

Influence of Confinement on the Fragility of Antiplasticized and Pure Polymer Films

July 27, 2006
Author(s)
Robert A. Riggleman, K Yoshimoto, Jack F. Douglas, J J. de Pablo
We investigate by molecular dynamics simulation how thin film confinementmodifies the fragility of a model glass-forming liquid characterized previously in the bulk. Film confinement is found to reduce the relative fragility of the polymer fluid, leading

WirelessMAN: Inside the IEEE 802.16 Standard for Wireless Metropolitan Area Networks

July 27, 2006
Author(s)
Roger Marks, Carl Eklund, Subbu Ponnuswamy, Kenneth L. Stanwood, Nico J. van Waes
This book serves as a companion to IEEE Std 802.16, which defines the IEEE 802.16 WirelessMAN Standard for Wireless Metropolitan Area Networks. It provides an introduction and overview of the technology while explaining the rationale behind the choices

Deprotection Kinetics in 193 nm Photoresist Thin Films: Influence of Copolymer Content

July 25, 2006
Author(s)
Shuhui Kang, Vivek M. Prabhu, B D. Vogt, Eric K. Lin, Wen-Li Wu, Karen Turnquest
The reaction-diffusion mechanism of photoacids is dependent upon many variables including the reaction rate, size of the acid counterion species and temperature. Recent experiments have demonstrated the acid diffusion can be controlled by a combination of

Metrics for Evaluating Human-Information Interaction Systems

July 24, 2006
Author(s)
Jean C. Scholtz
Society today has a wealth of information available due to information technology. The challenge facing researchers working in information access is how to help users easily locate the information needed. Evaluation methodologies and metrics are important

Multi-Path Multi-Channel Routing Protocol

July 24, 2006
Author(s)
Hamid Gharavi
In this paper we present a DSR-based multi-path Routing protocol, which has been developed for transmission of Multiple Description Coded (MDC) packets in wireless ad-hoc network environments. The protocol is designed to eliminate co-channel interference

Ionic Liquids Database (ILThermo)

July 23, 2006
Author(s)
Qian Dong, Andrei F. Kazakov, Chris D. Muzny, Robert D. Chirico, Jason A. Widegren, Vladimir Diky, Joe W. Magee, Kenneth N. Marsh, Michael D. Frenkel
Ionic Liquids Database (ILThermo)is a free web research tool that allow users worldwide to access an up-to-data data collection from the publications on experimental studies of thermodynamic and transport properties of ionic liquids, as well as binary and

The Pseudo-mitochondrial Genome Influences Mistakes in Heteroplasmy Interpretation

July 21, 2006
Author(s)
Ryan L. Parr, Jennifer Maki, Brian Reguly, Gabriel D. Dakubo, A A. Aguirre, Roy Wittock, Kerry Robinson, J P. Jakupciak, Robert E. Thayer
Nuclear mitochondrial pseudogenes (numts) are a potential source of contamination during mitochondrial DNA PCR amplification. This paper is the first to fully sequence 29 paralogous nuclear DNA fragments that represent the entire mitochondrial genome. This

Subsolidus Phase Equilibria and Properties in the Magnetic Dielectric System Bi 2 O 3 :Mn 2 O 3+x :Nb 2 O 5

July 20, 2006
Author(s)
Terrell A. Vanderah, M W. Lufaso, A U. Adler, Igor Levin, Juan C. Nino, Virgil Provenzano, Peter K. Schenck, Robert S. Roth
Subsolidus phase relations have been determined for the Bi-Mn-Nb-O system in air (750-900 C). Phases containing Mn2+, Mn3+, and Mn4+ were all observed. Ternary compound formation was limited to pyrochlore, which formed a substantial solid solution region

Semantic Web for Chemical Genomics: Need, How To, And Hurdles

July 19, 2006
Author(s)
Talapady N. Bhat
Semantic Web has been often suggested as the information technology solution to the growing problem in managing the millions of data points generated by modern science such as nanotechnology and high through-put screening for drugs. However, the progress

5th Annual PKI R&D Workshop "Making PKI Easy to Use" Proceedings

July 18, 2006
Author(s)
William T. Polk, Nelson E. Hastings, Kent Seamons
NIST hosted the fifth annual Public Key Infrastructure (PKI) Research Workshop on April 4-6, 2006. The two and a half day event brought together PKI experts from academia, industry, and government to explore the remaining challenges in deploying public key

Enhanced light extraction from circular Bragg grating coupled microcavities

July 18, 2006
Author(s)
Mark Su, Richard Mirin
A sevenfold enhancement of light extraction over a 130 nm bandwidth from a semiconductor at room temperature was achieved using circular Bragg gratings (CBGs) etched around the periphery of a vertical-cavity light-emitting structure. The CBG defined an in
Displaying 33951 - 33975 of 73697
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