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NIST Authors in Bold

Displaying 34076 - 34100 of 73832

The Evaluation of Ontologies

August 1, 2006
Author(s)
Leo Obrst, Benjamin Ashpole, Werner Ceusters, Mahesh Mani, Steven R. Ray, Bradford Smith
Recent years have seen rapid progress in the development of ontologies as semantic models intended to capture and represent aspects of the real world. There is, however, great variation in the quality of ontologies. If ontologies are to become

The LAGR Project. Integrating learning into the 4D/RCS Control Hierarchy

August 1, 2006
Author(s)
James S. Albus, Roger V. Bostelman, Tsai H. Hong, Tommy Chang, William P. Shackleford, Michael O. Shneier
The National Institute of Standards and Technology?s (NIST) Intelligent Systems Division (ISD) is a par-ticipant in the Defense Advanced Research Project Agency (DARPA) LAGR (Learning Applied to Ground Robots) Project. The NIST team?s objective for the

Three-Flat Test Solutions based on Simple Mirror Symmetry

August 1, 2006
Author(s)
Ulf Griesmann
Three-flat tests are the archetypes of measurement procedures used in interferometric surface and wavefront metrology to separate errors in the interferometer reference wavefront from errors due to the tests part surface, so-called absolute tests. A new

PIV Data Model Test Guidelines

July 31, 2006
Author(s)
Ramaswamy Chandramouli, Ketan Mehta, Pius A. Uzamere, Davie Simon, Nabil Ghadiali, Andrew P. Founds
In order to build the necessary PIV infrastructure to support common unified processes and government-wide use of identity credentials, NIST developed this test guidance document that ensures interoperability of PIV data. This document provides test

Depth Profiling Using C 60 + SIMS Deposition and Topography Development During Bombardment of Silicon

July 30, 2006
Author(s)
John G. Gillen, J Batteas, Chris A. Michaels, P Chi, John A. Small, Eric S. Windsor, Albert J. Fahey, Jennifer R. Verkouteren, W Kim
A C60+ primary ion source has been coupled to an ion microscope SIMS instrument to examine sputtering of silicon with an emphasis on possible application of C60+ depth profiling for high depth resolution SIMS analysis of silicon semiconductor materials

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
Displaying 34076 - 34100 of 73832
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