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Displaying 55601 - 55625 of 74340

Conformance Testing and Specification Management

June 1, 1996
Author(s)
James A. St Pierre, Selden Stewart, Kevin G. Brady
This is the final report for the second year of a joint project between the National Institute of Standards and Technology (NIST) and SEMATECH. It presents the results from investigation in two areas that were proposed in the first year report: conformance

Internal waves in xenon near the critical point

June 1, 1996
Author(s)
Robert F. Berg, Margaret J. Lyell, Geoffrey B. McFadden, Ronald G. Rehm
Just above the liquid-vapor critical point, a fluid’s large compressibility causes a stable stratification in which the density varies by as much as 10% in 1 cm. This stratification supports internal gravity waves which we observed with an oscillator

Modeling Spatial Reasoning Systems With Shape Algebras and Formal Logic

June 1, 1996
Author(s)
Scott Chase
The combination of the paradigms of shape algebras and predicate logic representations,used in a new method for describing designs, is presented. First order predicate logicprovides a natural, intuitive way of representing shapes and spatial relations

On-Wafer Measurement at Millimeter Wave Frequencies

June 1, 1996
Author(s)
Dylan F. Williams, J. M. Belquin, G. Dambrine, R. Fenton
We investigate millimeter wave on-wafer calibration and measurement in coplanar waveguide and demonstrate the applicability of the multiline thru-reflect-line calibration and good measurement repeatability between laboratories. We also investigate

Progress Toward an AC Josephson Voltage Standard

June 1, 1996
Author(s)
Clark A. Hamilton, Charles J. Burroughs, Samuel P. Benz
Progress toward a Josephson voltage standrd for fast dc measurements and ac waveform synthesis is described, including a version with SNS junctions operated at 11 GHz. A bias control circuit that achieves millampere drive capability, transient suppression
Displaying 55601 - 55625 of 74340
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