Technical Report Archive and Image Library (TRAIL) - 206 Matching Results

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Amplitude-Probability Distributions for Atmospheric Radio Noise

Description: 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: Chrichlow, W. Q.; Spaulding, A. D.; Roubique, C. J. & Disney, R. T.
Partner: UNT Libraries Government Documents Department

Methods for the Dynamic Calibration of Pressure Transducers

Description: From Introduction Statement of Objectives: "The purpose of this publication is to provide assistance to the practicing engineer who is faced with the problem of making dynamic measurements of rapidly changing pressures."
Date: December 12, 1963
Creator: Schweppe, J. L.; Eichberger, L. C.; Muster, D. F.; Michaels, E. L. & Paskusz, G. F.
Partner: UNT Libraries Government Documents Department

Creep and Drying Shrinkage of Lightweight and Normal-Weight Concretes

Description: From Scope of Investigation: "The work reported here is part of a continuing program concerning the long-term volume changes in concretes made from lightweight and normal-weight aggregates. The creep, drying-shrinkage, and strength data presented are for concretes made with 24 expanded shale lightweight aggregates and 5 natural, normal-weight aggregates. These aggregates were from widely separated geographical locations and were to be representative samples of aggregates being used in the production of structural concretes."
Date: March 4, 1964
Creator: Reichard, T. W.
Partner: UNT Libraries Government Documents Department

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

Description: 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.
Partner: UNT Libraries Government Documents Department

Development of High-Temperature Strain Gages

Description: From Introduction: "An improved high-temperature gage was needed, and in an attempt to fill this need an investigation was initiated in February 1954 in the Enameled Metals Laboratory at the National Bureau of Standards. The present Monograph constitutes a final summary on this program."
Date: March 17, 1961
Creator: Pitts, J. W. & Moore, D. G.
Partner: UNT Libraries Government Documents Department

Corrosion of Steel Pilings in Soils

Description: From Introduction: "In this paper are presented the results obtained to date from the inspections of steel pilings. The investigation will be continued by additional inspections of pilings in other parts if the country in order to cover a wider range of soil environments."
Date: October 24, 1962
Creator: Romanoff, Melvin
Partner: UNT Libraries Government Documents Department

Effects of Thermal Shrinkage on Built-up Roofing

Description: From Introduction: "The object of this research was to identify and study some of the factors involved in premature failures and to relate the pertinent factors to roof performance."
Date: March 4, 1965
Creator: Cullen, William C.
Partner: UNT Libraries Government Documents Department

Calibration Procedures for Direct-Current Resistance Apparatus

Description: From Object and Scope of This Paper: "This paper describes the apparatus and procedures used at the National Bureau of Standards for the measurement of d-c resistance when an accuracy of a few parts in a million is required. The object will be to explain procedures in detail and as simply as possible, with a minimum reference to theory."
Date: March 1, 1962
Creator: Brooks, Paul P. B.
Partner: UNT Libraries Government Documents Department

Basic Magnetic Quantities and the Measurement of the Magnetic Properties of Materials

Description: From Introduction: "The work of the Magnetic Measurements Section of the National Bureau of Standards includes (1) testing of specifically prepared test specimens intended for use as standards for checking magnetic testing apparatus (2) investigation and development of magnetic testing apparatus (3) calibration of mutual inductors, test coils, and instruments for measuring magnetic fields, and (4) investigations in the field of magnetics such as studies of phenomena associated with nuclear magnetic resonance or the selection and testing of materials suitable to be used as standards of magnetic susceptibility."
Date: May 21, 1962
Creator: Sanford, Raymond L. & Cooter, Irvine L.
Partner: UNT Libraries Government Documents Department

Mechanical Behavior of Crystalline Solids: Proceedings of a Symposium, April 28-29, 1962

Description: From Introduction: "These first three chapters from a background of introduction and general ideas about dislocations. The next two chapters are concerned specifically with properties of ceramic materials, with emphasis on single crystals."
Date: March 25, 1963
Creator: United States. Bureau of Standards.
Partner: UNT Libraries Government Documents Department

The Solar Spectrum 2935 Å to 8770 Å : Second Revision of Rowland's Preliminary Table of Solar Spectrum Wavelengths

Description: From Abstract: "An introductory text gives a detailed description of each column of the solar ledger. Tables include counts of lines of each spectrum recorded in the identification column, leading lines in the first and second spectra, and summaries of molecules and elements present in the sun. About 73 percent of the lines are wholly or partially identified. Sixty-three elements are recorded as present."
Date: December 1966
Creator: Moore, Charlotte E.; Minnaert, M. G. J. & Houtgast J.
Partner: UNT Libraries Government Documents Department

Line Parameters and Computed Spectra for Water Vapor Bands at 2.7 mu

Description: From Foreword: "This Monograph is one of a series intended to provide fundamental information required for the estimation and interpretation of atmospheric transmittance at infrared frequencies. Part I of this Monograph presents the fundamental properties of the 2.7m water vapor band in terms of line absorptions and the integrated transmittance at any frequency for infinite resolution. Part II presents examples of the "degraded" transmittance for finite resolution, as a function of the spectral slit width, concentration, and pressure with which direct observations may be compared."
Date: August 3, 1964
Creator: Gates, David M.; Calfee, Robert F.; Hansen, David W. & Benedict, W. S.
Partner: UNT Libraries Government Documents Department

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

Description: 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.
Partner: UNT Libraries Government Documents Department

Ideal Gas Thermodynamic Functions and Isotope Exchange Functions for the Diatomic Hydrides, Deuterides, and Tritides

Description: From Abstract: "This Monograph contains a consistent set of tables of thermodynamic properties of a large number of diatomic hydrides, deuterides, and tritides, for the ideal gas state at one atmosphere pressure. In addition to the thermodynamic properties of the molecular gases, the tables also include thermodynamic properties for chemical reactions involving the isotopic exchange of hydrogen."
Date: May 29, 1961
Creator: Haar, Lester; Friedman, Abraham S. & Beckett, Charles W.
Partner: UNT Libraries Government Documents Department

CRPL Exponential Reference Atmosphere

Description: From Introduction: "In this monograph, the background of the exponential reference atmosphere will be outlined and a set of radio ray tracings presented. These ray may be used for the solution of many problems involving refraction by means of the exponential reference atmosphere."
Date: October 29, 1959
Creator: Bean, B. R. & Thayer, G. D.
Partner: UNT Libraries Government Documents Department

Experimental Transition Probabilities for Spectral Lines of Seventy Elements: Derived from the NBS Tables of Spectral-line Intensities

Description: From introduction: "The goal of the work was to provide lists of the principal lines of the elements generally observed under ordinary conditions in arc spectra, together with their relative intensities on a true scale of relative energy."
Date: July 20, 1962
Creator: Corliss, Charles H. & Bozman, William R.
Partner: UNT Libraries Government Documents Department

Microwave Spectral Tables: Volume 5. Spectral Line Listing

Description: 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.
Partner: UNT Libraries Government Documents Department

Stabilization of Free Radicals at Low Temperatures: Summary of the NBS Program

Description: From Forward: "Although the first paper in this volume describes the general aspects of the technical management of the program, it is important to emphasize that much of success and productivity of this program stemmed from the sympathetic understanding of its basic viewpoint by both the Department of Defense and the National Bureau of Standards."
Date: August 1, 1960
Creator: Bass, Arnold M. & Broida, H. P.
Partner: UNT Libraries Government Documents Department

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

Description: Abstract: "These data are presented by element in part I, and all 39,000 observed lines are given in order of wavelength in Part II." From Introduction: "In the beginning, most intensity data were reported on an arbitrary scale of 10 steps, weak lines being assigned an intensity of 1, and the strongest line intensity 10."
Date: December 29, 1961
Creator: Meggers, William F.; Corliss, Charles H. & Scribner, Bourdon F.
Partner: UNT Libraries Government Documents Department

Bibliography and Index on Vacuum and Low Pressure Measurement

Description: From Introduction: "This paper consists essentially of a) a bibliography, b) an author index, and c) an index of the subject matter of the bibliography. While the primary objective is to focus on vacuum measurement, it was believed essential to include in the bibliography articles on vacuum technology in some measure accessory or essential to vacuum measurement. For maximum usefulness, an index of the subject matter of the references has been prepared. The abstract publications listed in the previous paragraph have been freely drawn upon in preparing the bibliography."
Date: November 10, 1961
Creator: Brombacher, W. G.
Partner: UNT Libraries Government Documents Department

Revision of the NBS Tables of Spectral-Line Intensities Below 2450 Å

Description: From Abstract: "A calibration is applied to the intensity measurements of the 1400 lines below 2450 A in the NBS Tables of Spectral-Line Intensities. Tables of the new values are presented with the lines arranged by elements and by wavelengths."
Date: July 7, 1967
Creator: Corliss, Charles H.
Partner: UNT Libraries Government Documents Department