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  Partner: UNT Libraries Government Documents Department
 Decade: 1970-1979
 Year: 1976
 Collection: Technical Report Archive and Image Library
America Joins a Metric World
Pamphlet issued by the United States National Bureau of Standards discussing the Metric Conversion Act of 1975, the work of the U.S. Metric Board, and how government agencies are facilitating a switch to the metric system. digital.library.unt.edu/ark:/67531/metadc123541/
An approximate spin design criterion for monoplanes, 1 May 1939
An approximate empirical criterion, based on the projected side area and the mass distribution of the airplane, was formulated. The British results were analyzed and applied to American designs. A simpler design criterion, based solely on the type and the dimensions of the tail, was developed; it is useful in a rapid estimation of whether a new design is likely to comply with the minimum requirements for safety in spinning. digital.library.unt.edu/ark:/67531/metadc53319/
Automatic Measurement of Network Parameters: A Survey
Report issued by the Bureau of Standards over a survey conducted on measurement methods of network parameters. As stated in the introduction, "this paper is concerned with the development of automatic methods of measuring basically the magnitudes and phase differences, or the complex ratio of two sinusoidal voltages, and applications of this capability to determining complex reflection coefficients and transmission coefficients and group delay times of electrical networks" (p. 1). This report includes tables, and illustrations. digital.library.unt.edu/ark:/67531/metadc13187/
Brief History of Measurement Systems: with a Chart of the Modernized Metric System
Pamphlet issued by the United States National Bureau of Standards providing an overview of the English system of measurement used in the United States and of the metric system. The internal pages of the pamphlet contain a chart labeled "The Modernized Metric System" which includes tables of common conversions and a chart of the seven base units: meter/length, kilogram/mass, second/time, ampere/electric current, kelvin/temperature, mole/amount of substance, and candela/luminous intensity, as well as two supplementary units: radian/plane angle and steradian/solid angle. There is also a graphic representation of yards versus meters in ruler form at the bottom. digital.library.unt.edu/ark:/67531/metadc123542/
Coal Project: Background Information (Planning and Management)
From foreword: "This report presents summary information on coal development in the United States, and material on the potential interactions of that development with fish and wildlife resources." digital.library.unt.edu/ark:/67531/metadc100499/
Coal Project: Five Year Framework (FY 1976 Through FY 1980)
This document presents the total scope of the framework for the U.S. Coal Project during fiscal years 1976 through 1980. The project was initiated to provide information for appropriate involvement of the Fish and Wildlife Service in U.S. coal development actions. digital.library.unt.edu/ark:/67531/metadc100498/
Computers, Health Records, and Citizen Rights
Report issued by the Bureau of Standards over studies on the benefits of computerized record-keeping. Medical records were chosen for the studies, and they also focus on patient privacy and rights. This report includes tables, and illustrations. digital.library.unt.edu/ark:/67531/metadc13189/
The Dynamics of Fields of Higher Spin
Report presenting a relativistic theory of motion that is free of many of the difficulties common in relativistic equations of motion. This Lagrangian theory describes fields and particles with arbitrary mass and charge and having any discrete spin, integer or half integer. digital.library.unt.edu/ark:/67531/metadc70420/
Electrokinetic Consolidation of Slimes in an Underground Mine
Report issued by the Bureau of Mines over tests conducted on underground mine slimes from a collection sump. Testing methods and results are discussed. This report includes tables, illustrations, and photographs. digital.library.unt.edu/ark:/67531/metadc38726/
The First Spectrum of Hafnium (HF I)
Report continuing W. K. Meggers' previous analysis in LS-coupling. This coupling is not rigorous in Hf I, and many intervals are irregular. Consequently, the levels are given also in numerical order with the even and odd levels presented in separate tables. The long line lists are given in two Appendices: Appendix A contains the observed Zeeman data for the individual lines, 531 in all; Appendix B consists of the complete line list of observed and classified lines. By far the greater part of the analysis is that of Meggers. digital.library.unt.edu/ark:/67531/metadc70419/
Health and Safety Laboratory Environmental Quarterly, March 1, 1976 - June 1, 1976
Report that presents information regarding chemical and radioactive pollution in the world. Includes tabulations of radionuclides and lead in milk, food, and tapwater. digital.library.unt.edu/ark:/67531/metadc100818/
Liquid-in-Glass Thermometry
Report containing information of general interest to manufacturers and users of liquid-in-glass thermometers. This report supersedes Monograph 90. Instructions explaining how to submit a thermometer to the National Bureau of Standards for calibration are provided, and the techniques and equipment, such as stirred liquid comparison baths, used in the calibration procedures are described. A discussion of important principles of acceptable thermometer design and factors affecting their use is included. Listed are tables of tolerances reflecting good manufacturing practices and reasonably attainable accuracies expected with liquid-in-glass thermometers. The calculation of corrections for the temperature of the emergent stem is given in detail for various types of thermometers and conditions of use. digital.library.unt.edu/ark:/67531/metadc70417/
Methods of analyzing wind-tunnel data for dynamic flight conditions
The effects of power on the stability and the control characteristics of an airplane are discussed and methods of analysis are given for evaluating certain dynamic characteristics of the airplane that are not directly discernible from wind tunnel tests alone. Data are presented to show how the characteristics of a model tested in a wind tunnel are affected by power. The response of an airplane to a rolling and a yawing disturbance is discussed, particularly in regard to changes in wing dihedral and fin area. Solutions of the lateral equations of motion are given in a form suitable for direct computations. An approximate formula is developed that permits the rapid estimation of the accelerations produced during pull-up maneuvers involving abrupt elevator deflections. digital.library.unt.edu/ark:/67531/metadc53322/
Spin tests of a low-wing monoplane to investigate scale effect in the model test range, May 1941
Concurrent tests were performed on a 1/16 and a 1/20 scale model (wing spans of 2.64 and 2.11 ft. respectively) of a modern low wing monoplane in the NACA 15 foot free-spinning wind tunnel. Results are presented in the form of charts that afford a direct comparison between the spins of the two models for a number of different conditions. Qualitatively, the same characteristic effects of control disposition, mass distribution, and dimensional modifications were indicated by both models. Quantitatively, the number of turns for recover and the steady spin parameters, with the exception of the inclination of the wing to the horizontal, were usually in good agreement. digital.library.unt.edu/ark:/67531/metadc53320/
Standard X-ray Diffraction Powder Patterns: Section 13. Data for 58 substances
No Description digital.library.unt.edu/ark:/67531/metadc13205/
[United States National Bureau of Standards Metric Conversion Card]
Conversion card issued by the United States National Bureau of Standards containing conversion information for length, area, mass (weight), volume, and temperature (exact). The front lists "Approximate Conversions to Metric Measures" and includes a continuum of temperatures at the bottom and a centimeter ruler along the right side (to 8 cm.). The back of the card lists "Approximate Conversions from Metric Measures" and includes an inch ruler along the right side (to 3 in.). digital.library.unt.edu/ark:/67531/metadc123539/
What About Metric?
Pamphlet issued by the United States National Bureau of Standards discussing the reasons that the U.S. decided passed the Metric Conversion Act of 1975 and provides tables, illustrations, and formulas for converting between customary units and metric units of measuring weight, length, volume, and temperature. It also includes a discussion of how one might expect to use metric measurements in the marketplace, in the home, and at work. digital.library.unt.edu/ark:/67531/metadc123543/