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Displaying 49676 - 49700 of 73969

Chemo-Mechanical Machining of Ceramics

October 1, 1999
Author(s)
Richard S. Gates, Stephen M. Hsu
Chemically assisted machining of ceramics is a way to remove ceramic materials rapidly using chemical reactions at the interface between the tool and the workpiece. Two effects are observed: chemical reactions that react with he workpiece forming an easily

Collaboration Technologies for Global Manufacturing

October 1, 1999
Author(s)
Michelle P. Steves, Amy Knutilla
One impact of the globalization of manufacturing is the growing requirement for teams that are not co-located to collaborate using shared information. In this paper, we present our approach to instituting and assessing collaboration technologies for

Concealment and Obstacle Detection for Autonomous Driving

October 1, 1999
Author(s)
Tommy Chang, Tsai Hong Hong, Steven Legowik, Marilyn N. Abrams
Obstacle detection and mapping are essential for unmanned autonomous driving. This paper describes both the sensors and the supporting software used in our system for driving autonomously on cross-country roads. The Ladar Range Imaging Camera (EBK) is used

Criteria Analysis

October 1, 1999
Author(s)
Neil Christopher, Jim G. Nell
This document describes a research project to recommend a decision tool that the Manufacturing Systems Integration Division (MSID) could use during its strategic-planning process to evaluate which standards activities to support. This paper describes the

Diffusion in Partially Saturated Porous Materials

October 1, 1999
Author(s)
Nicos Martys
The diffusive transport of ions in two classes of porous media was studied as a function of fluid saturation and wetting properties. A lattice Boltzmann method was used to model phase separation of a binary mixture, including wetting effects, in porous

Effect of Heating Boundary Conditions on Pool Boiling Experiments

October 1, 1999
Author(s)
J Darabi, M M. Ohadi, M A. Fanni-Tabrizi, S V. Dessiatoun, Mark A. Kedzierski
The two widely used experimental methods for pool boiling experiments are evaluated. Boiling heat transfer data employing either the water or electric heating method obtained by various researchers are compared and discussed. The electric heating method is

Effect of Solvent Quality on the Molecualr Dimensions of PAMAM Dendrimers

October 1, 1999
Author(s)
A Topp, Barry J. Bauer, D A. Tomalia, Eric J. Amis
The average dimensions of poly (amido amine) (PAMAM) dendrimers of generation numbers G5 and G8 are measured by small angle neutron scattering as a function of solvents of different quality, of the composition of mixtures of a good solvent and a non

Electron Collision Cross Section Data For Plasma Modeling

October 1, 1999
Author(s)
W M. Huo, Yong Sik Kim
An overview of the current status in electron collision cross section database for plasma modeling is presented. Emphasis is on dissociation, ionization, and dissociative ionization. The effect of the operating conditions on the relative importance of

Energy Conserving Discrete Boltzmann Equation for Nonideal Systems

October 1, 1999
Author(s)
Nicos Martys
The BBGKY formalism is utilized to obtain a set of moment equations to be satisfied by the collision operator in an energy conserving discrete Boltzmann equation for the case of a nonlocal interaction potential. A modified BGK form of the collision
Displaying 49676 - 49700 of 73969
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