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The Development and Evaluation of Effective Symbol Signs

Description: Report issued by the National Bureau of Standards over the history and development of sign systems in the United States. The research and development of more effective systems are discussed. This report includes tables, and illustrations.
Date: May 1982
Creator: Collins, Belinda Lowenhaupt
Partner: UNT Libraries Government Documents Department
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Analytical and Experimental Analysis of Procedures for Testing Solar Domestic Hot Water Systems

Description: Report issued by the National Bureau of Standards over testing procedures used for solar domestic water heating systems. Testing methods are discussed. This report includes tables, illustrations, and photographs.
Date: February 1982
Creator: Fanney, A. H.; Thomas, W. C.; Scarbrough, C. A. & Terlizzi, C. P.
Partner: UNT Libraries Government Documents Department
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Electrical Properties of Materials and Their Measurement at Low Temperatures

Description: Abstract: A review is given of the electrical resistance of materials at cryogenic temperatures. Measurement techniques, the data base, and uses of the data are presented. The emphasis is on metals and alloys of technological importance; a toxic which covers a large range of materials. Similarly, the treatment of theory and of measurement techniques is primarily for the user interested in the more practical aspects of the subject. In every instance, however, references are given which allow the… more
Date: March 1982
Creator: Fickett, F. R.
Partner: UNT Libraries Government Documents Department
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Oil and Gas Supply Modeling

Description: Abstract: The symposium on Oil and Gas Supply Modeling, held at the Department of Commerce, Washington, DC (June 18-20, 1980), was funded by the Energy Information Administration of the Department of Energy and co-sponsored by the National Bureau of Standards' Operations Research Division. The symposium was organized to be a forum in which the theoretical and applied state-of-the-art of oil and gas supply models could be presented and discussed. Speakers addressed the following areas: the reali… more
Date: May 1982
Creator: Gass, Saul I.
Partner: UNT Libraries Government Documents Department
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Thermophysical Properties of Isobutane from 114 to 700 K at Pressures to 70 MPa

Description: Abstract: Using a modified version of the nonanalytic equation of state, thermophysical properties of isobutane are derived from physical properties data and are tabulated at integral temperatures over the entire range of fluid states from 114 to 700 K along isobars at pressures to 70 MPa. Results include dielectric constants, densities, enthalpies, entropies, equation of state, internal energies, isobars, isochores, isotherms, Joule-Thomson inversion, heats of vaporization, melting line, ortho… more
Date: January 1982
Creator: Goodwin, Robert D. & Haynes, William M.
Partner: UNT Libraries Government Documents Department
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An Evaluation of Thermal Energy Conservation Schemes for an Experimental Masonry Building

Description: Report issued by the National Bureau of Standards over experiments conducted on a masonry building constructed inside an environmental chamber at the NBS. Different climactic conditions were simulated and the thermal response of the building was evaluated. This report includes tables, illustrations, and photographs.
Date: July 1982
Creator: Gujral, Parambir S.; Clark, Raymond J. & Burch, Douglas M.
Partner: UNT Libraries Government Documents Department
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Science and Technology: the Challenges of the Future

Description: Preface: On its 80th anniversary, the National Bureau of Standards hosted a series of lectures by six distinguished speakers of national and international note who discussed the challenges facing science and technology and, thus, the Bureau in the coming years. This publication contains the texts of these presentations, along with transcripts of the question-and answer sessions following the presentations. The lecture series was organized by Dr. Donald R. Johnson of NBS with the very able assis… more
Date: May 1982
Creator: Johnson, Donald R.
Partner: UNT Libraries Government Documents Department
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Beam-Profile Measurement of Laser Pulses Using a Spatial Filter to Sample the Hermite Modes of a String of Pulses

Description: Abstract: As a first step in the development of a beam-profile measuring instrument for laser sources that is capable of determining the distribution of low-order (less than 25) Hermitian modes in a series of laser pulses, I designed and evaluated the three key parts of such an instrument. First, there is the telescope system which allows the incident laser beam to be phase, beamwidth, and beam center matched to the optical spatial filter. Second, there is a brief error analysis of the structur… more
Date: September 1982
Creator: Johnson, Eric Gunnar, Jr.
Partner: UNT Libraries Government Documents Department
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Investigation of Construction Failure of Harbour Cay Condominium in Cocoa Beach, Florida

Description: Report issued by the National Bureau of Standards over investigations of construction failure in Cocoa Beach, Florida. Factors for the construction failure are discussed. This report includes tables, illustrations, and photographs.
Date: August 1982
Creator: Lew, H. S.; Carino, N. J.; Fattal, S. G. & Batts, M. E.
Partner: UNT Libraries Government Documents Department
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Investigation of Construction Failure of Reinforced Concrete Cooling Tower at Willow Island, West Virginia

Description: Report issued by the National Bureau of Standards over investigation of the collapse of a concrete cooling tower on Willow Island, West Virginia. Results of field, and laboratory tests are discussed. This report includes tables, illustrations, and photographs.
Date: September 1982
Creator: Lew, H. S.; Fattal, S. G.; Shaver, J. R.; Reinhold, T. A. & Hunt, B. J.
Partner: UNT Libraries Government Documents Department
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A Method to Quantify the Radiation Characteristics of an Unknown Interference Source

Description: From introduction: A new method for determining the radiation characteristics of leakage from electronic equipment for interference studies is described in this report. Basically, an unintentional leakage source is considered to be electrically small, and may be characterized by three equivalent orthogonal electric dipole moments and three equivalent orthogonal magnetic dipole moments. When an unknown source object is placed at the center of a transverse electromagnetic (TEM) cell, its radiated… more
Date: October 1982
Creator: Ma, Mark T. & Koepke, Galen H.
Partner: UNT Libraries Government Documents Department
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Investigation of the Kansas City Hyatt Regency Walkways Collapse

Description: Report issued by the National Bureau of Standards documenting investigations conducted on construction failures of two suspended walkways in a Kansas City hotel. It includes tables, illustrations, photographs, and other details of the investigation.
Date: May 1982
Creator: Marshall, Richard D.; Pfrang, E. O.; Leyendecker, Edgar V.; Woodward, K. A.; Reed, R. P.; Kasen, M. B. et al.
Partner: UNT Libraries Government Documents Department
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Measurement of Electrical Quantities in Pulse Power Systems

Description: Abstract: The Workshop on Measurement of Electrical Quantities in Pulse Power Systems addressed measurements in pulse systems having the characteristics of pulse duration less than a millisecond, system voltages greater than 10 kilovolts, and system currents greater than 10 kiloamperes. The presented papers were divided into four categories: voltage measurements; current measurements; power and energy measurements, and data acquisition. Included are discussions of applications of conventional m… more
Date: June 1982
Creator: McKnight, R. H. & Hebner, R. E., Jr.
Partner: UNT Libraries Government Documents Department
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Thermal Behavior of Fine-Grained Soils

Description: Report issued by the National Bureau of Standards over thermal tests conducted on soil samples. The results of the laboratory tests are discussed. This report includes tables, illustrations, photographs.
Date: November 1982
Creator: Salomone, Lawrence A.; Kovacs, William D. & Wechsler, Herbert
Partner: UNT Libraries Government Documents Department
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A System for Measuring Energy and Peak Power of Low-Level 1.064 [mu]m Laser Pulses

Description: From introduction: For the first time, transfer standards have been developed for measuring 1.064 Pm laser pulses of duration about 10-100 ns, peak irradiance of about 10-8-10-4 W/cm2, and fluences of about 10-16-10-11 J/cm2 . These energy and power measurement devices use PIN and APD silicon detectors, respectively, and can be used as stable transfer standards with total uncertainties (random errors computed at the 95 percent confidence level) of 10 to 15 percent. The system for calibrating th… more
Date: October 1982
Creator: Sanders, A. A. & Rasmussen, A. L.
Partner: UNT Libraries Government Documents Department
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Tests of Commercial Densimeters for LNG Service

Description: Abstract: Densimeters for liquefied natural gas (LNG) from four manufacturers were tested in liquid methane and an LNG-like mixture of methane, propane, and nitrogen in the density reference system (DRS). The calibration and performance of one type tested for the first time are reported. The stability of the calibrations and performances of three densimeters of a type previously tested have been examined and are also reported here.
Date: June 1982
Creator: Siegwarth, J. D. & LaBrecque, J. F.
Partner: UNT Libraries Government Documents Department
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Application of Method of Characteristics to Model the Transport of Discrete Solids in Partially-Filled Pipe Flow

Description: Report issued by the National Bureau of Standards over transporting discrete solids in partially-filled flow pipes. The methods and application of drainage flow are discussed. This report includes tables, illustrations, and photographs.
Date: February 1982
Creator: Swaffield, J. A.
Partner: UNT Libraries Government Documents Department
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Report of the Sixty-Sixth National Conference on Weights and Measures, 1981

Description: Report of the annual conference on weights and measures, hosted by the U.S. National Bureau of Standards in Washington D.C. It includes conference proceedings, a list of attendees, information about committees and officers, and other reports or commentaries discussed at the meetings.
Date: January 1982
Creator: United States. National Bureau of Standards.
Partner: UNT Libraries Government Documents Department
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Input Impedance of a Probe Antenna Exciting a TEM Cell

Description: Abstract: The input impedance of a probe antenna exciting a transverse electromagnetic (TEM) transmission line cell is formulated by a variational approach. The formulation also utilizes the results from a previous work on the field distribution inside a TEM cell excited by a vertical electrical Hertzian dipole. The final result of imoedance is shown to consist of two distinct terms, which are respectively contributed by the ordinary rectangular waveguide and the gap perturbation. Numerical res… more
Date: April 1982
Creator: Wilson, Perry F.; Chang, David C. & Ma, Mark T.
Partner: UNT Libraries Government Documents Department
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Load Displacement Characteristics of Shallow Soil Anchors

Description: Report issued by the National Bureau of Standards over studies conducted on load displacement of shallow soil anchors. Characteristics and testing methods are discussed. This report includes graphs, illustrations, and photographs.
Date: May 1982
Creator: Yokel, Felix Y.; Chung, Riley M.; Rankin, Frank A. & Yancey, Charles W. C.
Partner: UNT Libraries Government Documents Department
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