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Displaying 60651 - 60675 of 74202

Laser Focusing of Atoms: A Particle Optics Approach

September 1, 1991
Author(s)
Jabez McClelland, M Scheinfein
The use of a TEM 01 *-mode laser beam has been proposed as a means of focusing an atomic beam to nanometer-scale spot diameters. We have analyzed the classibal trajectories of atoms through a TEM 01 *-mode laser beam using methods developed for particle

Security in ISDN

September 1, 1991
Author(s)
William E. Burr
The Integrated Services Digital Network (ISDN) standards will provide worldwide digital communications service and will play a key role in the transition to electronic documents and business transactions. ISDN has been developed with little thought to

Summary of the Intercomparison of the Force Standard Machines of the National Institute of Standards and Technology, USA, and the Physikalisch- Technische Bundesanstalt, Germany

September 1, 1991
Author(s)
Simone L. Yaniv, M Peters, Amrit Sawla
A comparison of force measurements performed at the National Institute of Standards and Technology, USA, and at the Physikalisch-Technische Bundesanstalt, Germany is reported. The focus of the study was the intercomparison of the forces realized by the two

Transmission Line Capacitance Measurement

September 1, 1991
Author(s)
Dylan F. Williams, Roger Marks
The capacitance of coplanar lines is measured with two new techniques, one utilizing the resistance of the line and the other that of a resistor embedded in the line. The results of both measurements agree closely with calculations. A technique for

Accidents and Disasters: Vulnerability in the Built Environment

August 1, 1991
Author(s)
J D. Sime
A first order model and computer program implementing previously developed procedures for estimating the speed, depth, and temperature of a fire produced gravity wave front in a corridor have been developed. The program has been incorporated into FPETOOL

Data for Room Fire Model Comparisons

August 1, 1991
Author(s)
Richard D. Peacock, S Davis, Vyto Babrauskas
With the development of models to predict fire growth and spread in buildings, there has been a concomitant evolution in the measurement and analysis of experimental data in real-scale fires. This report presents the types of analyses that can be used to
Displaying 60651 - 60675 of 74202
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