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BOLOVAC Systems for Measuring Electrical Quantities From 0.5 MHz Through Microwaves (open access)

BOLOVAC Systems for Measuring Electrical Quantities From 0.5 MHz Through Microwaves

From Introduction: "This paper describes in some detail how Bolovac works, when its structural components are, what are the methods and steps of the procedure in its various major applications, and reasons for its advantages. The emphasis is on applications. Present status at the National Bureau of Standards relating to fabricating the most important component of the Bolovac-the bolometric disk-is briefly pointed out."
Date: January 1972
Creator: Selby, Myron C.
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
Platinum Resistance Thermometry (open access)

Platinum Resistance Thermometry

From Introduction: "This monograph describes the calibration of standard platinum resistance thermometers at the NBS including the equipment, techniques, and procedures."
Date: April 1973
Creator: Riddle, John L.; Furukawa, George T. & Plumb, Harmon H.
Object Type: Report
System: The UNT Digital Library
Capacities of Stacks in Sanitary Drainage Systems for Buildings (open access)

Capacities of Stacks in Sanitary Drainage Systems for Buildings

"Some of the important results obtained in investigations of capacities of plumbing stacks in test systems at the National Bureau of Standards and elsewhere are discussed. Data are shown from experiments on the flow of water and air in such systems, and analyses of certain flow phenomena are given. Methods are shown for applying the results of research in hydraulics and pneumatics to the preparation of loading tables (for drainage and vent stacks) suitable for use in plumbing codes" (p. 1).
Date: July 3, 1961
Creator: Wyly, Robert S. & Eaton, Herbert N.
Object Type: Report
System: The UNT Digital Library
Table of Wavenumbers: Volume 2, 7000 A to 1000 mu (open access)

Table of Wavenumbers: Volume 2, 7000 A to 1000 mu

Report discussing "A two-volume table for converting wavelengths in standard air to wavenumbers in vacuum. Wave-numbers are given to the nearest 0.001 K (cm^-1) for wavelengths from 2000 to 7000 A in volume 1, and 7000 A to 1000 m in volume II."
Date: May 16, 1960
Creator: Coleman, Charles DeWitt; Bozman, William R. & Meggers, William F.
Object Type: Report
System: The UNT Digital Library
Low Temperature Mechanical Properties Of Copper and Selected Copper Alloys: A Compilation From the Literature (open access)

Low Temperature Mechanical Properties Of Copper and Selected Copper Alloys: A Compilation From the Literature

From Abstract: "In the past 60 years considerable data have been accumulated concerning the mechanical properties of copper and its alloys.It was felt that there was great need to adequately document these results in one publication. Therefore a unique type of compilation is presented. The compilation is divided into four parts. The first section is intended for quick reference use for those who are interested in average values. The second section includes data from most of the investigators who have published results on the mechanical properties of copper and its alloys. The third section is composed of tables classifying the investigations which were not in section two. The fourth section section lists, in alphabetical order, all references used."
Date: December 1, 1967
Creator: Reed, Richard P. & Mikesell, Ritchie P.
Object Type: Report
System: The UNT Digital Library
Nickel and Its Alloys (open access)

Nickel and Its Alloys

From Abstract: "This monograph reviews available information on the production, properties, and uses of high-purity and commercial forms of nickel, and on the properties and applications of its important alloys, both ferrous and non ferrous."
Date: May 1968
Creator: Rosenberg, Samuel J.
Object Type: Report
System: The UNT Digital Library
Climatic Charts and Data of the Radio Refractive Index for the United States and the World (open access)

Climatic Charts and Data of the Radio Refractive Index for the United States and the World

From Introduction: "This Monograph has as its purpose the compilation and analysis of the extensive radio refractive index data available within the Central Radio Propagation Laboratory of the National Bureau of Standards. This will be accomplished by presenting both tabulations of basic data for specific locations and charts for interpolation to any location."
Date: November 25, 1960
Creator: Bean, B. R.; Horn, J. D. & Ozanich, A. M., Jr.
Object Type: Report
System: The UNT Digital Library
Amplitude-Probability Distributions for Atmospheric Radio Noise (open access)

Amplitude-Probability Distributions for Atmospheric Radio Noise

Report providing detail measurements and percentages in charts, using three statistical parameters, for amplitude-probability distributions of atmospheric radio noise.
Date: November 4, 1960
Creator: Crichlow, W. Q.; Spaulding, A. D.; Roubique, C. J. & Disney, R. T.
Object Type: Report
System: The UNT Digital Library
Research and Development in the Computer and Information Sciences: [Part] 2. Processing, Storage, and Output Requirements in Information Processing Systems: A Selective Literature Review (open access)

Research and Development in the Computer and Information Sciences: [Part] 2. Processing, Storage, and Output Requirements in Information Processing Systems: A Selective Literature Review

From Introduction: "This is the second in a series of reports concerned with research and development requirements and areas of continuing concern in the computer and information sciences and technologies."
Date: May 1970
Creator: Stevens, Mary Elizabeth
Object Type: Report
System: The UNT Digital Library
Technology of Liquid Helium (open access)

Technology of Liquid Helium

From Abstract: "This treatise is a source document containing information on helium resources, production, conservation, thermodynamic properties, liquefaction and refrigeration techniques, transportation and storage of liquid and safety requirements. It also contains a discussion of uses for liquid and cold gas in cryoelectronics, superconductivity, bubble chambers, cryopumping and missile and space systems."
Date: October 1968
Creator: Kropschot, R. H.; Birmingham, B. W. & Mann, D. B.
Object Type: Report
System: The UNT Digital Library
Standard X-ray Diffraction Powder Patterns: Section 14. Data for 68 substances (open access)

Standard X-ray Diffraction Powder Patterns: Section 14. Data for 68 substances

Report documenting standard x-ray diffraction powder patterns for various compounds, intended to replace previous data or provide information for new substances. It describes the methods and, for each substance, outlines any previous data as well as information about the sample used and structural data, with a table of diffraction patterns.
Date: September 1977
Creator: Morris, Marlene C.; McMurdie, Howard F.; Evans, Eloise H.; Paretzkin, Boris; de Groot, Johan H.; Newberry, Rainer et al.
Object Type: Report
System: The UNT Digital Library
Table of wavenumbers: Volume 1, 2000 A to 7000 A (open access)

Table of wavenumbers: Volume 1, 2000 A to 7000 A

From Extension of Tables: "Because of its range and size, this table of wavenumbers is in two volumes, Volume I presenting wavenumbers for all wavelengths between 2000 and 7000 A, and Volume II giving wave-numbers for all wavelengths from 7000 A to 10000000 A=1 mm. In some cases Volume I may suffice for ionic spectra, and in others Volume II may be adequate for molecular spectra, but in general both volumes will needed to cover the entire range of spectral wavelengths measured in standard air."
Date: May 2, 1960
Creator: Coleman, Charles DeWitt; Bozman, William R. & Meggers, William F.
Object Type: Report
System: The UNT Digital Library
Acid-Base Behavior in Aprotic Organica Solvents (open access)

Acid-Base Behavior in Aprotic Organica Solvents

Report presenting the National Bureau of Standards' research program designed to determine and explain acid-base behavior in aprotic organic solvents and to develop methods and reference materials for determining total acid and base content and relative strengths of acids and bases in the media.
Date: August 1968
Creator: Davis, Marion Maclean
Object Type: Report
System: The UNT Digital Library
Acceleration Due to Gravity at the National Bureau of Standards (open access)

Acceleration Due to Gravity at the National Bureau of Standards

Report describing the determination of the absolute value of the acceleration due to gravity at the National Bureau of Standards.
Date: June 1968
Creator: Tate, Douglas Roy
Object Type: Report
System: The UNT Digital Library
Selected Properties of Hydrogen (Engineering Design Data) (open access)

Selected Properties of Hydrogen (Engineering Design Data)

Report issued by the Bureau of Standards over the thermophysical properties of hydrogen. Properties of hydrogen in varying states (gaseous, liquid, solid, etc.) are presented and discussed. This report includes tables, and illustrations.
Date: February 1981
Creator: Hord, J.; McCarty, Robert D. & Roder, H. M.
Object Type: Report
System: The UNT Digital Library
Tables of Spectral-Line Intensities: Part 1, Arranged by Elements (open access)

Tables of Spectral-Line Intensities: Part 1, Arranged by Elements

From Abstract: "Comparisons with other other intensity measurements in individual spectra indicate that the National Bureau of Standards spectral-line intensities may have average errors of 20 percent, but first of all they provide uniform quantitative values for the seventy chemical elements commonly determined by spectrochemists. These data are presented by element in part I, and all 39000 observed lines are given in order of wavelength in part II."
Date: May 1975
Creator: Meggers, William F.; Corliss, Charles H. & Scribner, Bourdon F.
Object Type: Report
System: The UNT Digital Library
Tables of Spectral-Line Intensities: Part 2 - Arranged by Wavelengths (open access)

Tables of Spectral-Line Intensities: Part 2 - Arranged by Wavelengths

From Preface: "This new edition of the NBS Tables of Spectral-Line Intensities incorporates three improvements on the original edition of 1961. In the original edition only about 25 000 of the 39 000 lines in the tables had been classified. In the ensuing thirteen years, about 8500 more lines (chiefly rare-earths) have been classified and the new classifications are here incorporated."
Date: May 1975
Creator: Meggers, William F.; Corliss, Charles H. & Scribner, Bourdon F.
Object Type: Report
System: The UNT Digital Library
Measurement Assurance Program - A Case Study: Length Measurements. Part 1. Long Gage Blocks (5 in to 20 in) (open access)

Measurement Assurance Program - A Case Study: Length Measurements. Part 1. Long Gage Blocks (5 in to 20 in)

From Abstract and Introduction: "This paper is, in essence, a report on the extension of the techniques first suggested in NBS Monograph 103 "Realistic Uncertainties and the Mass Measurement Process" to the area of length measurement. This paper covers the progress to date on the long gage blocks (from 5 to 20 in the length). The purpose of this purpose is to verify the closure between the "old" process and the "new" process, and to describe the present "points of departure" upon which some of the current assigned length values are based."
Date: November 1975
Creator: Pontius, Paul E.
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
Plane-Wave Scattering-Matrix Theory of Antennas and Antenna-Antenna Interactions (open access)

Plane-Wave Scattering-Matrix Theory of Antennas and Antenna-Antenna Interactions

From Abstract: "This monograph is distinguished by the use of plane-wave spectra for the representation of fields in space and by the consideration of antenna-antenna (antenna-scatterer) interactions at arbitrary separation distances." From Preface: "The primary objective of this monograph is to facilitate the critical acceptance and proper application of antenna and field measurement techniques deriving more or less directly from the plane-wave scattering matrix (PWSM) theory of antennas and antenna-antenna interactions. A second objective is to present some recent and some new theoretical results based on this theory."
Date: June 1981
Creator: Kerns, David M.
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
An Institutional Plan for Developing National Standards: With Special Reference to Environment, Safety, and Health (open access)

An Institutional Plan for Developing National Standards: With Special Reference to Environment, Safety, and Health

From Abstract: "This plan was commissioned to provide a framework for the development of all essential non-nuclear energy-related, environmental, safety, and health (ES&H) standards for the private sector to coincide with the commercialization of energy technologies."
Date: September 1979
Creator: Steiner, Bruce W.
Object Type: Report
System: The UNT Digital Library
Electromagnetic Boundary-Value Problems Based Upon a Modification of Residue Calculus and Function Theoretic Techniques (open access)

Electromagnetic Boundary-Value Problems Based Upon a Modification of Residue Calculus and Function Theoretic Techniques

From Introduction: "The first part of this monograph is concerned with the analysis of closed region wave-guide junction problems. This allows simplification of the techniques to be used since no branch cuts are involved in the spectral representation of the fields. However, the analysis can be extended to open region problems in a logical manner. This is the subject of the second part of this monograph."
Date: June 1979
Creator: Montgomerey, James Patrick & Chang, David C.
Object Type: Report
System: The UNT Digital Library