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Displaying 40751 - 40775 of 73969

Designing Damage-Resistant Brittle-Coating Structures: II. Trilayers

August 1, 2003
Author(s)
P Miranda, Antonia Pajares, F Guiberteau, Y N. Deng, H Zhao, Brian R. Lawn
An extension of the FEA-based damage analysis for bilayers in Part I is presented for trilayers consisting of a functional outer layer on an underlying substrate with an intermediate inner core layer. The inner core layer may be used to enhance bonding or

Dielectric Properties of Layer Polymer Films

August 1, 2003
Author(s)
W Sakai, T Yoshiji, N Tsutsumi, C. K. Chiang
Electrical property of thin polymer film is a key parameter for designing new highspeed circuit devices in high frequency and for developing smaller devices and all polymer electrical chips. In this study, we made a three-layered film structure, ABA , to

Effects of Non-Uniform Air Flow on Finned-Tube Evaporator Performance

August 1, 2003
Author(s)
John Choi, William V. Payne, Piotr A. Domanski
An experimental investigation was implemented to determine the capacity degradation due to non-uniform refrigerant and air flow distributions, and to assess the potential to recover the lost capacity via controlling refrigerant distribution between

Elastic Constants of Natural Quartz

August 1, 2003
Author(s)
Paul R. Heyliger, H M. Ledbetter, Sudook A. Kim
We measured the elastic constants of a natural-quartz sphere using resonance-ultrasound spectroscopy (RUS). Our measurements of the near-traction-free vibrational frequencies of the sphere are matched with the predicted frequencies from the dynamic theory

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
Displaying 40751 - 40775 of 73969
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