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Displaying 54001 - 54025 of 74219

Chapter 6: Virtual Environments for Design and Manufacture

October 1, 1997
Author(s)
Kevin W. Lyons, Scott Angster, Sankar Jayaram
The technology of computer-aided design and computer aided manufacturing (CAD/CAM) has progressed significantly from the two-dimensional wireframe drafting systems of the 1970''s to the parametric and feature-based solid modelers of the 1990''s. There are

Cumulative Seismic Damage of Reinforced Concrete Bridge Piers

October 1, 1997
Author(s)
S K. Kunnath, A El-Bahy, A W. Taylor, William C. Stone
A comprehensive experimental study was undertaken in this research effort to investigate cumulative damage in reinforced concrete circular bridge piers. Twelve identical quarter-scale bridge columns, designed and fabricated in accordance with current

Display Forum '97

October 1, 1997
Author(s)
John W. Roberts
The proceedings of the Display Forum '97 Workshop was held at the Gaithersburg, MD, Hilton on October 20, 1997. The Workshop was jointly hosted by the Video Electronics Standards Association (VESA) and the Information Technology Laboratory (ITL), NIST. The

Display Reflection Characterization

October 1, 1997
Author(s)
George R. Jones Jr.
Reflected luminance from a display surface is usually characterized as being diffuse (lambertian) and specular. Is this accurate? Does the focus length and aperture of the measuring lens have an effect on the measured reflected luminance?

Electromagnetic Signal Attenuation in Construction Materials

October 1, 1997
Author(s)
William C. Stone
Laboratory studies of electromagnetic (EM) signal propagation through construction materials were carried out as part of the NIST initiative in Non-Line-of-Sight surveying technology. From these data it is possible to determine several important material

Integrated Vision and Touch Sensing for CMMs

October 1, 1997
Author(s)
Billibon H. Yoshimi, Tsai Hong Hong, Martin Herman, M Nashman, William G. Rippey
This paper describes a calibrated and an uncalibrated method for integrating a vision system with touch sensors and a Coordinate Measuring Machine (CMM). Traditionally, vision systems are used to measure machined parts and to localize manufacturing defects

Make Me a Match

October 1, 1997
Author(s)
Isabel M. Beichl, F Sullivan
This is a tutorial article on the Hopcroft-Karp algorithm for finding a maximal matching in an undirected graph.

New Infrared Beamline at the NIST SURF II Storage Ring

October 1, 1997
Author(s)
Angela R. Hight Walker, Uwe Arp, Gerald T. Fraser, Thomas B. Lucatorto, J Wen
The success of the infrared program at the National Synchrotron Light Source [NSLS] has motivated the establishment of an infrared beamline at the infrared beamline and its associated infrared microscope instrumentation and show preliminary Fourier
Displaying 54001 - 54025 of 74219
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