Handbook of Mathematical Functions With Formulas, Graphs, and Mathematical Tables (open access)

Handbook of Mathematical Functions With Formulas, Graphs, and Mathematical Tables

A handbook of mathematical functions that is designed to provide scientific investigations with a comprehensive and self-contained summary of the mathematical functions that arise in physical and engineering problems.
Date: December 1972
Creator: Abramowitz, Milton & Stegun, Irene A.
Object Type: Report
System: The UNT Digital Library
Tentative Provisions for the Development of Seismic Regulations for Buildings: A Cooperative Effort with the Design Professions, Building Code Interests, and the Research Community (open access)

Tentative Provisions for the Development of Seismic Regulations for Buildings: A Cooperative Effort with the Design Professions, Building Code Interests, and the Research Community

Report issued by the U.S. National Bureau of Standards discussing building codes and standards in earthquake-prone areas. As stated in the introduction, "the basic purpose of this project is to present, in one comprehensive document, current state-of-knowledge in the fields of engineering seismology and engineering practice as it pertains to seismic design and construction of buildings" (p. 1). This report includes tables, and illustrations.
Date: June 1978
Creator: Applied Technology Council
Object Type: Report
System: The UNT Digital Library
Geographical Variation in the Heating and Cooling Requirements of a Typical Single-Family House, and Correlation of These Requirements to Degree Days (open access)

Geographical Variation in the Heating and Cooling Requirements of a Typical Single-Family House, and Correlation of These Requirements to Degree Days

Report issued by the Bureau of Mines discussing the heating and cooling requirements for single-family homes. These requirements are determined from "Test Reference Year," or TRY data and long-term geographic climate information. This report includes tables, illustrations, photographs, and a map.
Date: November 1978
Creator: Arens, Edward A. & Carroll, William L.
Object Type: Report
System: The UNT Digital Library
The Measurement of Noise Performance Factors: A Metrology Guide (open access)

The Measurement of Noise Performance Factors: A Metrology Guide

From Introduction: "The purpose of this guide is to describe, discuss, and analyze methods of measuring the average noise factor and average effective input noise temperature of an electronic transducer."
Date: June 1974
Creator: Arthur, M. G. & Anson, W. J.
Object Type: Report
System: The UNT Digital Library
What About Metric? (open access)

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.
Date: October 1976
Creator: Barbrow, Louis E. & Halpin, Suellen
Object Type: Pamphlet
System: The UNT Digital Library
Applications of Waveguide and Circuit Theory to the Development of Accurate Microwave Measurement Methods and Standards (open access)

Applications of Waveguide and Circuit Theory to the Development of Accurate Microwave Measurement Methods and Standards

Report issued by the Bureau of Standards over "the basic theory and analytical methods used in the development of accurate microwave measurement methods and standards" (p. x). These methods are presented and discussed. This report includes tables, illustrations, and photographs.
Date: August 1973
Creator: Beatty, R. W.
Object Type: Report
System: The UNT Digital Library
Automatic Measurement of Network Parameters: A Survey (open access)

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.
Date: June 1976
Creator: Beatty, Robert William
Object Type: Report
System: The UNT Digital Library
A Gage Block Measurement Process Using Single Wavelength Interferometry (open access)

A Gage Block Measurement Process Using Single Wavelength Interferometry

Report describing the interferometric measurement process using a laser light source and a Kosters type gage block interferometer. Continuous evaluation and refinement of the process is aided by statistical treatment and control chart techniques. All error sources, both random and systematic, are evaluated and the process is maintained in a state of statistical control.
Date: December 1975
Creator: Beers, John S.
Object Type: Report
System: The UNT Digital Library
The Theory of the Optical Wedge Beam Splitter (open access)

The Theory of the Optical Wedge Beam Splitter

Report discussing optical wedge beam splitters and the basic theory for computing the ratio of the intensity of the incident beam to the intensity of any selected emerging beam and also for computing the direction of the emerging beam, assuming that the wedge angle, index of refraction, angle of incidence, and number of reflections are known.
Date: October 1974
Creator: Beers, Yardley
Object Type: Report
System: The UNT Digital Library
Time and Frequency: Theory and Fundamentals (open access)

Time and Frequency: Theory and Fundamentals

From Abstract: "This is a tutorial Monograph describing various aspects of time and frequency (T/F). Included are chapters relating to elemental concepts of precise time and frequency; basic principles of quartz oscillators and atomic frequency standards; historical review, recent progress, and current status of atomic frequency standards; promising areas for developing future primary frequency standards; relevance of frequency standards to other areas of metrology including a unified standard concept; statistics of T/F data analysis coupled with the theory and construction of the NBS atomic time scale; an overview of T/F dissemination techniques; and the standards of T/F in the USA. The Monograph addresses both the specialist in the field as well as those desiring basic information about time and frequency."
Date: May 1974
Creator: Blair, Byron E.
Object Type: Report
System: The UNT Digital Library
Survey of Micromanometers (open access)

Survey of Micromanometers

This survey is concerned with instrumentation for measuring pressures from about 0.001 to 50mm of mercury (0.13 to 6650 Nm-2), described in publications during the years 1900-1968. U-tube micromanometers and diaphragm-capacitance gages are treated in considerable detail. Other instrumentation described includes gas column manometers; elastic element micromanometers with optical, inductance, resistance wire, strain gage, and vacuum tube transducers; piston gages; vane gages; and centrifugal micromanometers. The measurement of dynamic pressure, atmospheric pressure oscillations, low vapor pressure, and calibration techniques are discussed. Schematic diagrams of approximately 70 instruments are included. References to the sources of information and available performance data are given.
Date: 1970
Creator: Brombacher, W. G.
Object Type: Report
System: The UNT Digital Library
Stress Corrosion Cracking Control Measures (open access)

Stress Corrosion Cracking Control Measures

From Abstract: "This publication attempts to diminish the incidence of stress corrosion failures by assembling the available practical measures to avoid or minimize the problem and present these measures in a form comprehensible to those persons responsible for the design, fabrication, and maintenance of new structures."
Date: June 1977
Creator: Brown, B. F.
Object Type: Report
System: The UNT Digital Library
The Nicrosil versus Nisil Thermocouple: Properties and Thermoelectric Reference Data (open access)

The Nicrosil versus Nisil Thermocouple: Properties and Thermoelectric Reference Data

From Abstract: "This monograph deals with the formulation and development of the new highly stable nickel-base thermocouple alloys Nicrosil (Ni-14.2Cr-1.4Si) and Nisil (Ni-4.4Si-0.1Mg) under the leadership of the Materials Research Laboratories (MRL) of the Australian Government of Defence, and their standardization by the National Bureau of Standards (NBS) of the U.S. Department of Commerce."
Date: April 1978
Creator: Burley, Noel A.; Powell, Robert L.; Burns, George W.; Scroger, Margaret G.; Burns, George W. & Scroger, Margaret G.
Object Type: Report
System: The UNT Digital Library
The Role of Standard Reference Materials in Measurement Systems (open access)

The Role of Standard Reference Materials in Measurement Systems

Report is a guide to Standard Reference Materials (SRM's) and should be useful to all users of SRM's particularly those in countries developing national measurement systems. It is not intended to be an exhaustive description of the NBS-SRM program, but rather a review of the role SRM's play in the measurement system, how SRM's are certified, and what the certification means. To illustrate the use of SRM's, several selected industries are described in which SRM's have made significant contributions.
Date: January 1975
Creator: Cali, J. P.; Mears, T. W.; Michaelis, R. E.; Reed, W. P.; Seward, R. W.; Stanley, C., L. et al.
Object Type: Report
System: The UNT Digital Library
Thermal Conductivity of Solids At Room Temperature and Below: A Review and Compilation of the Literature (open access)

Thermal Conductivity of Solids At Room Temperature and Below: A Review and Compilation of the Literature

From Abstract: "An extensive compilation is given of the measured values of thermal conductivity for nearly all solid materials from room temperature down to 0.02 kelvin. Experimental methods and physical phenomena are discussed in the text and coded in the tables for references for which curves are shown."
Date: September 1973
Creator: Childs, Gregg E.; Ericks, Lewis J. & Powell, Robert L.
Object Type: Report
System: The UNT Digital Library
The Mechanics of Pneumatic Tires (open access)

The Mechanics of Pneumatic Tires

From Abstract: "This treatise is an attempt to provide a rational descriptive and analytical basis for tire mechanics. Chapters of this book are contributed by active research workers in the fields of rubber and textile properties, friction, material properties, tire stress problems, tire design and construction, vehicle skid and handling, and tire mechanical properties."
Date: November 1971
Creator: Clark, Samuel K.
Object Type: Report
System: The UNT Digital Library
Properties of Glasses in Some Ternary Systems Containing BaO and SiO2 (open access)

Properties of Glasses in Some Ternary Systems Containing BaO and SiO2

Report discussing the glass forming regions in six ternary oxide systems containing BaO, Si02, and a third oxide. The properties of the resulting glasses were measured and the results reported. The data on refractive indices, dispersions, and specific volumes were evaluated by computer methods in an attempt to identify "substructures" containing the cations present in the glasses.
Date: September 1973
Creator: Cleek, Given W. & Babcock, C. L.
Object Type: Report
System: The UNT Digital Library
Hearing Aids (open access)

Hearing Aids

From Abstract: "This publication contains information, useful to the hard of hearing, on several topics relating to hearing and hearing aids. This publication represents an extensive revision of NBS Circular 534, Hearing Aids. It includes new material based upon research conducted at the National Bureau of Standards during the intervening years."
Date: October 1970
Creator: Corliss, Edith L. R.
Object Type: Report
System: The UNT Digital Library
Measurement Assurance for Gage Blocks (open access)

Measurement Assurance for Gage Blocks

Report discussing the philosophy of measurement assurance and the three levels of measurement assurance programs. The measurement assurance programs are outlined to show how control over the measurement process can be maintained and how the offset (or systematic error) from the unit of length maintained by the National Bureau of Standards ban be made negligible. This monograph is intended for those who need to know on a continuing basis the uncertainty of their gage block calibration procedure.
Date: February 1979
Creator: Croarkin, Carroll; Beers, John & Tucker, Clyde
Object Type: Report
System: The UNT Digital Library
Interactions of High Energy Particles With Nuclei (open access)

Interactions of High Energy Particles With Nuclei

Report discussing elastic scattering and diffractive production processes induced in nuclear targets by high energy projectiles. Special attention is paid to the interaction of high energy hadrons and photons. The common features of all these processes are emphasized throughout the article: The multiple scattering and shadowing processes inside of the target nuclei. An effort is made to develop a unified way of treating nuclear interactions of particles which are either hadrons or exhibit some hadronic components in such interactions.
Date: September 1975
Creator: Czyz, Wieslaw
Object Type: Report
System: The UNT Digital Library
Relativistic Many-Body Bound Systems (open access)

Relativistic Many-Body Bound Systems

Report containing "[t]he principles and the mathematical details of a fully relativistic nuclear theory" (p. v). Appendix begins on page 124.
Date: 1975
Creator: Danos, Michael & Gillet, Vincent
Object Type: Report
System: The UNT Digital Library
Relativistic Many-Body Bound Systems: Electromagnetic Properties (open access)

Relativistic Many-Body Bound Systems: Electromagnetic Properties

Report presenting the formulae for the calculation of the electron scattering form factors, and of the static magnetic dipole and electric quadrupole moments, of relativistic many-body bound systems. The framework, given in NBS Monograph 147, is relativistic quantum field theory in the Schrodinger picture ; the physical particles, i.e. the solutions of the interacting fields, are given as linear combinations of the solutions of the free fields, called the parton fields. The parton-photon interaction is taken as given by minimal coupling, p -> p - eA ; in addition the contribution of the photon-vector meson vertex of the vector dominance model is derived.
Date: April 1977
Creator: Danos, Michael & Gillet, Vincent
Object Type: Report
System: The UNT Digital Library
Construction of a Large Transverse Electromagnetic Cell (open access)

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.
Date: February 1979
Creator: Decker, W. F. & Wilson, W. A.
Object Type: Report
System: The UNT Digital Library
Visual Range: Concepts, Instrumental Determination, and Aviation Applications (open access)

Visual Range: Concepts, Instrumental Determination, and Aviation Applications

From Abstract: "This document is a review of the principles, procedures, and instruments used in the measurement of visual range. The fundamental concepts of the visual range of the objects and lights are discussed. The principles of operation of the several classes of atmospheric attenuation meters are reviewed and representative instruments are described."
Date: June 1977
Creator: Douglas, C. A. & Booker, R. L.
Object Type: Report
System: The UNT Digital Library