Temperature-Entropy Diagram for Parahydrogen Triple-Point Region (open access)

Temperature-Entropy Diagram for Parahydrogen Triple-Point Region

Graphical presentation of he three-phase region at and near the triple point of parahydrogen.
Date: June 22, 1966
Creator: Sindt, C. F. & Mann, D. B.
System: The UNT Digital Library
Reduction of Data for Piston Gage Pressure Measurements (open access)

Reduction of Data for Piston Gage Pressure Measurements

Report issued by the U.S. National Bureau of Standards discussing piston gage pressure and reducing errors of measurement. Sources of error are described and evaluated in order to "reduce the magnitude of overall error of measurement" (p. 1). This report includes tables, and illustrations.
Date: June 17, 1963
Creator: Cross, J. L.
System: The UNT Digital Library
Annotated Bibliography on Soft X-ray Spectroscopy (open access)

Annotated Bibliography on Soft X-ray Spectroscopy

Report presenting a bibliography of about 550 references of the soft X-ray literature since 1950 and through 1960. The emphasis is on the application of soft X-ray spectroscopy to the study of valence band electronic states in metals and alloys. Therefore, the spectral region of 25 to 800 angstroms involving ruled glass grating spectrometers is of principal interest. In addition to soft X-ray data, references on all pertinent aspects of the apparatus and experimental problems are included. Also listed separately are references of value in corroborating soft X-ray data with other results. Subject, author, X-ray band, material, and other indices are included.
Date: June 29, 1962
Creator: Yakowitz, Harvey, 1939- & Cuthill, J. R.
System: The UNT Digital Library
Refractive Indices and Densities of Aqueous Solutions of Invert Sugar (open access)

Refractive Indices and Densities of Aqueous Solutions of Invert Sugar

Report of the refractive indices and densities of aqueous solutions of invert sugar at temperatures of 15, 20, 25, and 30º C, for concentrations up to about 82 percent of invert sugar (by weight). From the results, equations have been derived which relate the refractive index and percent of invert sugar (weight in air) at each temperature. Other equations relate the absolute density and percent of invert sugar (weight in vacuum) at each temperature. Five-decimal tables giving the refractive indices and densities of invert sugar solutions containing 1 to 85 percent of sugar are given for each percentage of invert sugar at the four temperatures.
Date: June 7, 1963
Creator: Snyder, Carl F. & Hattenburg, Albert T.
System: The UNT Digital Library
Reduction of Data for Piston Gage Pressure Measurements (open access)

Reduction of Data for Piston Gage Pressure Measurements

Report discussing pressure measurements made with piston gages that are affected by gravity, temperature, pressure, and several other variables. For accurate determinations of pressure the calculations must take these variables into account. A general equation is developed and simplified procedures for calculating pressure are illustrated.
Date: June 17, 1963
Creator: Cross, J. L.
System: The UNT Digital Library
New Description of Thorium Spectra (open access)

New Description of Thorium Spectra

Report discussing wavelengths and estimated intensities in electrodeless lamp and spark sources presented for 15121 lines of ThI, ThII, ThIII, and ThIV in the spectral range from 2000 to 11550 A. Also contains tables of previously published interferometric values.
Date: June 21, 1960
Creator: Zalubas, Romuald
System: The UNT Digital Library
Temperature-Induced Stresses in Solids of Elementary Shape (open access)

Temperature-Induced Stresses in Solids of Elementary Shape

Report discussing how solids subjected to non-uniform temperature change develop internal stresses determined by, (1) the temperature distribution within the solid, and (2) certain physical constants of the material. For two varieties of heating, the equations determining stress have been put in convenient form for practical use, and tables of certain temperature functions show how to determine stresses in a slab, in a cylinder, or in a sphere subjected to either of two modes of heating. The temperature-distribution tables independently provide a useful means for the ready estimation of temperature gradients.
Date: June 21, 1960
Creator: Adams, Leason H. & Waxler, Roy M.
System: The UNT Digital Library
Vibration-Rotation Structure in Absorption Bands for the Calibration of Spectrometers From 2 to 16 Microns (open access)

Vibration-Rotation Structure in Absorption Bands for the Calibration of Spectrometers From 2 to 16 Microns

Reports discussing bands of common gases that have been tabulated and remeasured wherever necessary from 2 to 16 microns to obtain an accuracy of about 0.03 cm-1 throughout the region and to provide good calibrating points at frequent intervals. Some 600 rotation-vibration lines are illustrated in 20 spectrograms and wavenumbers are listed in companion tables with considerable intercomparison with worthy data obtained in other laboratories. The absorption bands were remeasured or calibrated by using either a precisely graduated grating circle or standard atomic lines with the fringe system formed by a Fabry-Perot interferometer. Characteristic features of the individual bands are discussed briefly and references to other publications are given. The substances used for calibration include H2O, CO2, CO, HCl, HBr, NH3, C2H2, CH4, N2O, and polystyrene film.
Date: June 21, 1960
Creator: Plyler, Earle K.; Danti, Alfred; Blaine, L. R. & Tidwell, E. D.
System: The UNT Digital Library
Tensile and Impact Properties of Selected Materials From 20 to 300 ºK (open access)

Tensile and Impact Properties of Selected Materials From 20 to 300 ºK

Report giving the tensile and impact properties of structural materials that were experimentally determined at temperatures from 20 to 300 ºK. Tensile properties of a few materials were also determined at 4 ºK. The properties experimentally determined were the yield strength, tensile strength, elongation, and reduction of area, the stress versus strain curve, and the impact energy. The test equipment and procedures are described. The individual data are presented in tables, and the average results are displayed in graphs.
Date: June 28, 1963
Creator: Warren, K. A. & Reed, R. P.
System: The UNT Digital Library
Infrared Spectroscopy of Carbohydrates: A Review of the Literature (open access)

Infrared Spectroscopy of Carbohydrates: A Review of the Literature

Report presenting of survey of the literature on the infrared spectroscopy of carbohydrates in order to assemble and systematize information in this field. Discusses principles and instrumentation, sampling techniques, comparison of samples, and the interpretation of the spectra. In addition, examples are discussed of the use of infrared spectra for qualitative and quantitative purposes and in the determination of structure. Special techniques are briefly described.
Date: June 1968
Creator: Tipson, R. Stuart
System: The UNT Digital Library
Standard X-ray Diffraction Powder Patterns: Section 4. Data for 103 Substances (open access)

Standard X-ray Diffraction Powder Patterns: Section 4. Data for 103 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: June 28, 1966
Creator: Swanson, Howard E.; Morris, Marlene C. & Evans, Eloise H.
System: The UNT Digital Library
Standard X-ray Diffraction Powder Patterns: Section 6. Data for 60 Substances (open access)

Standard X-ray Diffraction Powder Patterns: Section 6. Data for 60 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: June 1968
Creator: Swanson, H. E.; McMurdie, H. F.; Morris, M. C. & Evans, E. H.
System: The UNT Digital Library
Determination of Total X-Ray Beam Energy With a Calibrated Ionization Chamber (open access)

Determination of Total X-Ray Beam Energy With a Calibrated Ionization Chamber

From Abstract: "This report describes the use of an air-filled aluminum-alloy ionization chamber to determine the energy transported by a bremsstrahlung beam with maximum photon energy in the range 6 to 170 Mev. This report can be used to construct a replica chamber to determine its absolute calibration between 6 and 170 Mev under a variety of experimental conditions."
Date: June 5, 1962
Creator: Pruitt, John S. & Domen, Steve R.
System: The UNT Digital Library
Mechanical Properties of Structural Materials at Low Temperatures: A Compilation From the Literature (open access)

Mechanical Properties of Structural Materials at Low Temperatures: A Compilation From the Literature

From Introduction: "The data are presented with the idea that an engineer who is making initial calculations on equipment for operation at cryogenic temperatures is more interested in obtaining quickly a definite figure that he in evaluating the experimental data given in several detailed reports on the same material. The graphs and tables presented here, consequently, represent an attempt by the authors to perform evaluation of data which have appeared in the literature and to present the design engineer with the result."
Date: June 1, 1960
Creator: McClintock, R. Michael & Gibbons, Hugh P.
System: The UNT Digital Library
Electrical Parameters of Precision, Coaxial, Air-dielectric Transmission Lines (open access)

Electrical Parameters of Precision, Coaxial, Air-dielectric Transmission Lines

From Introduction: "Following the guidelines established by this committee, several commercially developed precision connectors have appeared on the market which have led to the wide use of the precision coaxial lines as immittance standards. This paper has been prepared to alleviate this situation by providing graphs from which the electrical parameters of the lines may be determined rapidly and accurately."
Date: June 30, 1966
Creator: Nelson, Robert E. & Coryell, Marlene R.
System: The UNT Digital Library
Microwave Spectral Tables: Volume 3. Polyatomic Molecules With Internal Rotation (open access)

Microwave Spectral Tables: Volume 3. Polyatomic Molecules With Internal Rotation

From Introduction: "This volume contains data on the microwave spectra of 94 polyatomic molecules capable of exhibiting internal rotation, based upon a search of the literature up to July, 1962, but including some information of later dates."
Date: June 1969
Creator: Wacker, Paul F.; Cord, Marian S.; Burkhard, Donald G.; Petersen, Jean D. & Kukol, Raymond F.
System: The UNT Digital Library
Microwave Spectral Tables: Volume 4. Polyatomic Molecules Without Internal Rotation (open access)

Microwave Spectral Tables: Volume 4. Polyatomic Molecules Without Internal Rotation

From Introduction: "This volume contains data on the microwave spectra of 166 polyatomic molecules incapable of exhibiting internal rotation."
Date: June 1968
Creator: Cord, Marian S.; Petersen, Jean D.; Lojko, Matthew S. & Haas, Rudolph H.
System: The UNT Digital Library
Microwave Spectral Tables: Volume 5. Spectral Line Listing (open access)

Microwave Spectral Tables: Volume 5. Spectral Line Listing

From Abstract: "This volume is a listing of the spectral lines reported in Volume I, III, and IV of the Microwave Spectral Tables. These lines are listed according to ascending magnitude of frequency and should provide a steady reference."
Date: June 1968
Creator: Cord, Marian S.; Lojko, Matthew S. & Petersen, Jean D.
System: The UNT Digital Library
A Method for the Dynamic Determination of the Elastic, Dielectric, and Piezoelectric Constants of Quartz (open access)

A Method for the Dynamic Determination of the Elastic, Dielectric, and Piezoelectric Constants of Quartz

From Abstract: "Several dynamic determinations have been made of the constants of quartz. Most of these determinations do not take into account the piezoelectric effect; those that do, suffer from certain deficiencies which are discussed in this paper."
Date: June 1, 1960
Creator: Basri, Saul A.
System: The UNT Digital Library
Structure Shielding Against Fallout Radiation From Nuclear Weapons (open access)

Structure Shielding Against Fallout Radiation From Nuclear Weapons

From Purpose: "This Monograph is to assist scientists and engineers in the solution of problems of protection from ionizing radiation, particularly radiation from fallout."
Date: June 1, 1962
Creator: Spencer, L. V.
System: The UNT Digital Library
The 1958 He4 Scale of Temperatures: Part 1. Introduction, Part 2. Tables for the 1958 Temperature Scale (open access)

The 1958 He4 Scale of Temperatures: Part 1. Introduction, Part 2. Tables for the 1958 Temperature Scale

Report containing information regarding He4 vapor pressure measurement as of 1958, the recent history of the vapor pressure temperature scale, and a series of tables containing these measurements.
Date: June 17, 1960
Creator: Brickwedde, F. G. (Ferdinand Graft), 1903-; van Dijk, H.; Durieux, M.; Clement, J. R. & Logan, J. K.
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
System: The UNT Digital Library