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Displaying 40976 - 41000 of 74189

Evaluation of Intelligent Information Access Systems

August 1, 2003
Author(s)
Jean C. Scholtz
This paper discusses traditional evaluations for information access systems and proposes metrics more suited for evaluation of intelligent information access systems.

Flexural Strengthening of Masonry Walls with External Composite Bars

August 1, 2003
Author(s)
K K. Bajpai, Dat Duthinh
The strengthening of epoxy with milled glass fibers allows full strength development of #2 glass FRP bars in 200 mm or half a concrete masonry unit length. This fiber-reinforced epoxy should be effective for other types of bars as well.With full anchorage

Fundamental Aspects of the Application of Carbon Dioxide in Comfort Cooling

August 1, 2003
Author(s)
J S. Brown, Piotr A. Domanski
This paper presents entropy generation analyses for the evaporator, compressor, gas cooler, expansion device and liquid-line suction-line heat exchanger for a transcritical carbon dioxide cycle for automotive and residential air-conditioning systems, and

Generic Case Studies for Manufacturing Simulation Applications

August 1, 2003
Author(s)
Charles R. McLean, Guodong Shao
Manufacturing managers typically commission simulation case studies to support their decision-making processes. These studies are used to evaluate alternative solutions to manufacturing problems in areas such as plant layout, scheduling, capacity planning

High Resolution Spectrum of Xenon Ions at 13.4 nm

August 1, 2003
Author(s)
S S. Churilov, Y N. Joshi, Joseph Reader
The spectrum of xenon excited in a low-inductance vacuum spark was photographed at high resolution in the region 9.5 nm - 15.5 nm. The observed transitions were identified as belonging to ions from Xe 8+ to Xe 13+. In the region of importance for EUV

Highly Charged Ion Bombardment of Silicon Surfaces

August 1, 2003
Author(s)
J E. Sanabia, S N. Goldie, L P. Ratliff, Lori S. Goldner, John D. Gillaspy
Visible photoluminescence from Si (100) surfaces irradiated by highly-charged ions has recently been reported. 1 This discovery has potential applications in silicon-based display technology and other opto-electronic devices and detectors. In an attempt to

Integrated Product and Process Data for B2B Collaboration

August 1, 2003
Author(s)
Boonserm Kulvatunyou, Nenad Ivezic, R A. Wysk, Albert W. Jones
Collaborative development of engineered products in a business-to-business (B2B) environment will require more than just the selection of components from an on-line catalogue. It will involve the electronic exchange of product, process, and production

Intelligent Agents-Enabled Integrated Manufacturing Planning and Control

August 1, 2003
Author(s)
Shaw C. Feng, Keith A. Stouffer, Kevin K. Jurrens
agents provide a means to integrate various manufacturing software applications. The agents are typically executed in a computer-based collaborative environment, sometimes referred to as a multi-agent platform. The National Institute of Standards and

LoopDA -- A Natural Ventilation System Design and Analysis Tool

August 1, 2003
Author(s)
William S. Dols, Steven J. Emmerich
The Loop Equation Design Method has been proposed for sizing ventilation airflow components of natural and hybrid ventilation systems. While the loop design method has been demonstrated on a limited basis, the method has been automated in order to better

MALDI-TOF MS Characterization of Covalent Cationized Polyethylene

August 1, 2003
Author(s)
Sheng Lin-Gibson, D L. Brunner, David L. VanderHart, Barry J. Bauer, B M. Fanconi, Kathleen M. Flynn, William E. Wallace
MALDI-TOF MS generally uses metal salts to cationize synthetic polymers, such as polystyrene. However, reduced analyte signal often results from complications during the metal ionization processes in the gas phase including competition between the analyte

Measured Impact of a Rooftop Photovoltaic System

August 1, 2003
Author(s)
Arthur H. Fanney, E R. Weise, K R. Henderson
A 35-kilowatt roof top photovoltaic system has been installed at the National Institute of Standards and Technology (NIST) in Gaithersburg, Maryland. The system, located on a the roof that connects NIST s Administration Building to its adjoining conference

Measurements of frequency dependence of fused-silica capacitors

August 1, 2003
Author(s)
Yicheng Wang
In order to improve the capacitance calibration services at the National Institute of Standards and Technology, we need to determine the frequency dependence of all the reference capacitance standards over the audio frequency range. The value of a standard

Measuring the Response of High-Speed Pulse Generators and Samplers

August 1, 2003
Author(s)
Nicholas Paulter, Donald R. Larson
The National Institute of Standards and Technology (NIST) provides a service for measuring parameters associated with the step response of high-speed (transition durations > 7 ps) samplers and the output signals of high-speed pulse generators. These

Model-Driven Integration Using Legacy Models

August 1, 2003
Author(s)
Peter O. Denno, Michelle P. Steves, Donald E. Libes, Edward J. Barkmeyer Jr.
The paper describes a model-driven method of systems integration using legacy models. The method defines relationships between elements of legacy models to produce an implicit ontology of a subsystem. The implicit ontologies of subsystems to be integrated

Multihop Sensor Network Design for Wideband Communications

August 1, 2003
Author(s)
Hamid Gharavi, K Ban
This paper presents a master/slave cellular based mobile ad-hoc network architecture for multihop multimedia communications. The proposed network is based on a new paradigm for solving the problem of cluster-based ad-hoc routing when utilizing existing

New Technologies for Radiometry: Impact on Ocean Color Research

August 1, 2003
Author(s)
Bettye C. Johnson, Steven W. Brown, N Souaidia, M Feinholz, M Yarbrough, S Flora, D K. Clark
Ocean color satellites provide global determinations of chlorophyll a by measurements of the spectral radiance of the oceans. This is a difficult measurement because the at-satellite radiance is dominated by the atmospheric contribution, and pre-flight
Displaying 40976 - 41000 of 74189
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