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Displaying 63101 - 63125 of 74256

Group index and time delay measurements of a standard reference fiber

July 1, 1988
Author(s)
B. L. Danielson, C. D. Whittenberg
We describe measurement techniques for establishing a standard reference fiber with well characterized group index and time of group delay. Evaluation of an interferometric method indicates that fiber group index can be determined with a total estimated

Search for Alternative Refrigerants: A Molecular Approach

July 1, 1988
Author(s)
Mark O. McLinden, David Didion
The impending production limitation on the fully halogenated CFC refrigerants is causing an intense search for possible substitutes. This study reviews the historical development of the CFC refrigerants and the relationship between molecular structure and

The Vertical Machining Workstation Systems

July 1, 1988
Author(s)
Jay S. Jun
This paper presents an overview of the control systems of the Vertical Machining Workstation (VWS) of the Automated Manufacturing Research Facility (AMRF) at the National Institute of Standards and Technology (NIST). It also gives details of workstation

Measurement of the Heat Capacities of Pure and Mixed Refrigerants

June 20, 1988
Author(s)
R Radermacher
A flow calorimeter was designed and built to measure the heat capacity of pure and mixed halogenated hydrocarbons in the liquid phase. The calorimeter is an electrically heated, coiled tube located inside a vacuum chamber in the water bath. The liquid

Analysis and Prediction of Air Leakage Through Door Assemblies

June 9, 1988
Author(s)
Daniel Gross, W L. Haberman
A generalized relationship is presented for determining air flow rates through narrow gaps around door edges. The relationship provides values of leakage rates for steady, laminar flow through gaps over a wide range of pressure differences and eliminates
Displaying 63101 - 63125 of 74256
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