UNT Libraries Government Documents Department - 10 Matching Results

Search Results

Activities of the NBS Spectrochemical Analysis Section: July 1970 to June 1971
Review of the progress in research, instrumentation, and service activities of the Spectrochemical Analysis Section from July 1970 to June 1971.
Construction of a Flashlamp-Pumped Dye Laser and an Acousto-Optik Modulator for Mode-Locking
Design of a flashlamp-pumped dye laser capable of emitting light pulses 500 ns wide with a risetime of 300 ns.
WR15 Microwave Calorimeter and Bolometer Unit
Descriptions of the principal changes in the calorimeter and bolometer unit from the WR28 models of a microwave serving as National Bureau of Standards standard for power measurements in the frequency range 50 to 75 GHz.
Survey of the Properties of the Hydrogen Isotopes Below Their Critical Temperatures
The survey covers PVT, thermodynamic, thermal, transport, electrical radiative and mechanical properties.
Design for a Variable-Output-Coupling Far-Infrared Michelson Laser
Technique for varying the coupling of power from far-infrared gas lasers and the design and construction of these lasers.
Millimeter Attentuation and Reflection Coefficient Measurement System
This paper presents the details to implement a WR15 attentuation and reflection coefficient magnitude measurement system.
Glass Limit Standards Deposited at NBS for Railway, Highway, and Airways Traffic Signal Colors: History, Permanence and Colorimetric Properties
Permanence and colorimetric properties of signal glass.
Recommended Practice for the Use of Metric (SI) Units in Building Design and Construction
Report issued by the U.S. National Bureau of Standards discussing the use of metric units of measurement during construction. As stated in the scope, "this document outlines a selection of SI units, with multiples and sub-multiples, for general use in building design and construction" (p. 1). This report includes tables, and illustrations.
Construction of a Large Transverse Electromagnetic Cell
Report issued by the U.S. National Bureau of Standards discussing the construction of large electromagnetic cells. As stated in the introduction, "this instruction provides information and procedures necessary to fabricate a large transverse electromagnetic (TEM) cell to be used for experimental "electromagnetic interference" (EMI) evaluation studies" (p. 1). This report includes illustrations, and photographs.
Analysis of Tentative Seismic Design Provisions for Buildings
Report issued by the U.S. National Bureau of Standards discussing an analysis of seismic design provisions for buildings with three main objectives. As stated in the introduction, "The first objective was to assist the ATC in the preparation of its report. The second objective of the study was to augment the text of the published Provisions by providing a formal, consistent documentation of the text. The third objective was to provide alternate arrangements of the Provisions that would make them more readily usable by several categories of users" (p. 1). This report includes illustrations.