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Displaying 54276 - 54300 of 74067

Highly Selective Terahertz Optical Frequency Comb Generator

March 1, 1997
Author(s)
J Ye, L -. Ma, T Daly, John L. Hall
Using a 10.5 GHz resonant electro-optic modulator placed inside a resonant optical cavity, we have generated an optical frequency comb with a span wider than 3 THz. The optical resonator consists of three mirrors, with the output coupler being a thin Fabry

Hybrid Reinforced Precast Frame for Seismic Regions

March 1, 1997
Author(s)
J Stanton, William C. Stone, Geraldine S. Cheok
A precast, prestressed concrete framing system for resisting earthquake loads is described. The system uses both unbonded post-tensioned reinforcement and bonded bar reinforcement. Tests hve shown that its performance is equal or superior to that of a

Manufacturing Evaluation of Designs: A Knowledge-Based Approach

March 1, 1997
Author(s)
Ronald Giachetti, Kevin K. Jurrens
Manufacturing evaluation is performed with heuristics that are developed internally by the manufacturing experts in the company. Many of the existing manufacturing evaluation systems tely on highly specialized knowledge, extensive databases, and require a

Optimization as a Driver for Design Space Exploration

March 1, 1997
Author(s)
Simon Szykman
This paper describes an approach toward the use of optimization which is a departure from the traditional role optimization plays in the design process. Traditionally, optimization is used to improve point solutions in the latter phases of design. In this

Entity Authentication Using Public Key Cryptography

February 18, 1997
Author(s)
National Institute of Standards and Technology (NIST), James Foti
[Withdrawn October 19, 2015] This standard specifies two challenge-response protocols by which entities in a computer system may authenticate their identities to one another. These may be used during session initiation, and at any other time that entity
Displaying 54276 - 54300 of 74067
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