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Displaying 63051 - 63075 of 74223

A method for the synthesis of pyrrolidine

July 5, 1988
Author(s)
Anzor I. Mikaia, George A. Kliger, OA Lesik, EV Marchevskaya, VP Rijikov, Sergai Loktev
Reaction gas chromatography–mass spectrometry is applied to establish optimal conditions for the synthesis of … Further optimization of the reaction was carried out in a pilot plant

A Coplanar Probe to Microstrip Transition

July 1, 1988
Author(s)
Dylan F. Williams, Tom H. Miers
A transition between a coplanar probe and a microstrip transmission line is reported. The transition is significant in that it does not require substrate via holes. A set of microstrip impedance standards were developed for the purpose of de-embedding the

Distributed Data Interfaces--the Lessons of IMDAS

July 1, 1988
Author(s)
Edward J. Barkmeyer Jr.
In most industrial facilities, existing control, engineering and administrative systems operate on computer systems from many different manufacturers and use many different data systems. They have existing independently designed, and therefore overlapping

Feature-Based Process Planning in the AMRF

July 1, 1988
Author(s)
Mark Unger, Steven R. Ray
The growing use of features in the design and manufacturing communities is due to the fact that features better capture the functionality or intent associated with a part design. The process planning team at the National Bureau of Standards is using

Fire Hazard Comparison of Fire-Retarded and Non-Fire-Retarded Products (NBS SP 749)

July 1, 1988
Author(s)
Vyto Babrauskas, Richard H. Harris Jr., Richard Gann, Barbara C. Levin, B T. Lee, Richard Peacock, M Paabo, W H. Twilley, M F. Yoklavich, H M. Clark
A test program was conducted for the Fire Retardant Chemicals Association to quantify the effects of fire retardant chemicals on total fire hazard. Five different types of products, each made from a different type of plastic were used. The products were

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
Displaying 63051 - 63075 of 74223
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