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The Determination of the Constants of Instrument Transformers
Report issued by the Bureau of Standards over studies on instrument transformers. As stated in the first paragraph, "the principle of the method here described is the same for both current and potential transformers, being an application of the potentiometer method" (p. 281). The methods and equipment studied are presented and discussed.
Date:
1911
Creator:
Agnew, P. G. & Fitch, T. T.
System:
The UNT Digital Library
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
Determining Cost-Effective Insulation Levels for Masonry and Wood-Frame Walls in New Single-Family Housing
Report issued by the National Bureau of Standards over calculations for cost-effective insulation in single-family housing. Different calculations are made with regards to location, energy pricing, heating and cooling equipment available, and financial criteria. This report includes tables, illustrations, and photographs.
Date:
August 1981
Creator:
Petersen, Stephen R.; Barnes, Kimberly A. & Peavy, Bradley A.
System:
The UNT Digital Library
The Development and Evaluation of Effective Symbol Signs
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
System:
The UNT Digital Library
Development of High-Temperature Strain Gages
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.
System:
The UNT Digital Library
The Development of Loran-C Navigation and Timing
From Abstract: "This work traces the development of the Loran-C concept from its inception as a 100-kHz pulse hyperbolic navigation system to more recent times when it found a variety of applications to both timing and navigation."
Date:
October 1972
Creator:
Hefley, Gifford
System:
The UNT Digital Library
Direct Measurement of the Electric Field of a Laser Pulse--Theory
From abstract: This paper presents the conflicts in the design and gives a solution. The complete evaluation requires assembly of the proposed apparatus to assess final accuracy.
Date:
August 1985
Creator:
Johnson, Eric Gunnar, Jr.
System:
The UNT Digital Library
A Direct-Reading Device for Use in Computing Characteristics of Vacuum Tungsten Lamps (with Computing Chart)
Report issued by the Bureau of Standards over the development of a computing device to be used with vacuum lamps. The methods of development are presented and discussed. This report includes tables, and illustrations.
Date:
1916
Creator:
Skogland, J. F.
System:
The UNT Digital Library
Directional Extreme Wind Speed Data for the Design of Buildings and Other Structures
Report issued by the National Bureau of Standards over wind speed data collected for the design of buildings. The wind speed data is discussed. This report includes tables.
Date:
March 1984
Creator:
Changery, Michael J.; Dumitriu-Valcea, Eugene J. & Simiu, Emil
System:
The UNT Digital Library
Directory of Accredited Laboratories: 1984
Abstract: Laboratories accredited by the National Voluntary Laboratory Accreditation Program (NVLAP) are identified along with the specific test methods for which they are accredited. The current status of existing accreditation programs is given for laboratories that test thermal insulation, freshly mixed concrete, carpet, wood burning stoves, paint, and personnel radiation dosimeters, and that provide acoustical testing services. Indexes are provided for searching the Directory for laboratories accredited in specific testing areas or for specific test methods.
Date:
February 1985
Creator:
NVLAP (Program : U.S.)
System:
The UNT Digital Library
Discussion of the National Electrical Safety Code: (to Accompany the Third Edition of the Code), October 31, 1920
Discussion of the updated rules in the third edition of the National Electrical Safety Code.
Date:
1921
Creator:
unknown
System:
The UNT Digital Library
The Divergent Beam (Kossel) X-Ray Method and Its Uses in Measuring Strain Contours in an Individual Grain of Fe-3 Weight Percent Si Transformer Sheet
From Abstract: "The results showed that a variable strain distribution existed in the alloy sheet at the time it was ready for insertion into a transformer core. Small applied comprehensive and tensile loads tended to rearrange this variable strain distribution but not appreciably alter the total stored elastic energy."
Date:
August 1973
Creator:
Yakowitz, Harvey
System:
The UNT Digital Library
Durability of Stucco and Plaster Construction: Progress Report Containing Results of Investigations up to April, 1916
Technical paper issued by the Bureau of Standards over tests conducted on the durability of stucco construction. Construction methods are discussed. The test results are presented and discussed as well. This paper includes tables, illustrations, and photographs.
Date:
January 31, 1917
Creator:
Wig, R. J.; Pearson, J. C. & Emley, W. E.
System:
The UNT Digital Library
The Dynamics of Fields of Higher Spin
Report presenting a relativistic theory of motion that is free of many of the difficulties common in relativistic equations of motion. This Lagrangian theory describes fields and particles with arbitrary mass and charge and having any discrete spin, integer or half integer.
Date:
August 1976
Creator:
Hayward, Raymond W.
System:
The UNT Digital Library
Effect of Exposure Site on Weather Resistance of Porcelain Enamels Exposed for Three Years
From Introduction: "The present report describes the condition of all of the porcelain enamels after exposure for 3 yr."
Date:
April 10, 1962
Creator:
Moore, Dwight G. & Potter, Alan
System:
The UNT Digital Library
Effect of Mortar Properties on Strength of Masonry
Report issued by the National Bureau of Standards over studies conducted on the effects of mortar on the strength of masonry. Materials, methods, and results are presented and discussed. This report includes tables, illustrations, and photographs.
Date:
November 20, 1961
Creator:
Fishburn, Cyrus C.
System:
The UNT Digital Library
Effect of Rate of Temperature Change on the Transformations in an Alloy Steel
Scientific paper issued by the Bureau of Standards over studies conducted on the effects of temperature change on alloy steel. The experimental methods used and the results are presented and discussed. This paper includes tables, photographs, and illustrations.
Date:
July 10, 1919
Creator:
Scott, Howard
System:
The UNT Digital Library
The Effect of Time Ordering on the Lyman α Profile
Report investigating the effects of time-ordering over the complete line profile using a unified theory of spectral line broadening previously developed. The behavior of the time-ordered thermal average and un-time-ordered thermal average are compared. The Fourier transform of the thermal average is obtained analytically. Calculations for the line profile of the Lyman-[functional symbol alpha] line of hydrogen are presented and are representative in that the full thermal average is replaced by the thermal average with the electron velocity distribution approximated by f(v)=[functional symbol alpha] (v-vav) where vav is the thermal velocity for the plasma in question.
Date:
June 1971
Creator:
Godfrey, J. T.; Vidal, C. R.; Smith, E. W. & Cooper, J.
System:
The UNT Digital Library
Effective Resistance and Inductance of Iron and Bimetallic Wires
Report issued by the Bureau of Standards over the use of bimetallic wires. The resistance and inductance of the bimetallic wires are studied. This report includes tables, and illustrations.
Date:
1916
Creator:
Miller, John M.
System:
The UNT Digital Library
Effectiveness of Solar Shading for an Office Building
Report issued by the National Bureau of Standards over the effectiveness of solar screens on office buildings. The effectiveness of solar shading is discussed. This report includes tables, maps, illustrations, and photographs.
Date:
May 1984
Creator:
Treado, S.; Barnett, J. & Remmert, W.
System:
The UNT Digital Library
Effects of Finite Lattice Heat Capacity on Spin Lattice Relaxation: Theory and Numerical Analysis
Report discussing the transient magnetic behavior of a paramagnetic substance, after an initial disturbance, considered theoretically for a variety of situations in which the lattice temperature rises as a result of energy flow from the magnetic (electron spin) system. Next, the opposite extreme is considered - that in which the resonant and remaining modes are totally uncoupled. Finally, there is a consideration of the case of spins coupled only to the resonant phonons, which in turn are coupled to a constant temperature bath, whether this be the helium or the remaining modes.
Date:
August 1, 1967
Creator:
Peterson, Robert L.
System:
The UNT Digital Library
Effects of Thermal Shrinkage on Built-up Roofing
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.
System:
The UNT Digital Library
Efflux of Gases Through Small Orifices
Scientific paper issued by the Bureau of Standards over studies conducted on gas effusion rates. The methods used and the results of the studies are presented and discussed. This paper includes tables, and illustrations.
Date:
January 28, 1920
Creator:
Buckingham, Edgar & Edwards, Junius David
System:
The UNT Digital Library
An Electric and Magnetic Field Sensor for Simultaneous Electromagnetic Near-Field Measurements -- Theory
Abstract: This paper describes the theory of a single sensor to perform simultaneous electric and magnetic near-field measurements. The theory indicates that it is possible to obtain the magnetic-loop and electric-dipole currents using a loop terminated with identical loads at diametrically opposite points. The theory also indicates that it is possible to obtain an ideal load impedance for achieving equal electric and magnetic field responses of the loop. Preliminary experiments have been performed using plane waves to verify these results. Key words: electric field, electromagnetic interference, electromagnetic radiation, loop, magnetic field, near fields.
Date:
April 1983
Creator:
Kanda, Motohisa
System:
The UNT Digital Library