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Cooperative Measurements of Radio Fading in 1925
Scientific paper issued by the Bureau of Standards over studies conducted on radio fading. As stated in the abstract, "the series of measurements on fading were devoted to studies of fading effects during the sunset period, effects during the solar eclipse of January 24, the fading variations throughout a 24-hour day, and the effects of high transmitting power on fading" (p. 419). This paper includes tables, maps, illustrations, and photographs.
Date:
August 17, 1927
Creator:
Dellinger, J. H.; Jolliffe, C. B. & Parkinson, T.
System:
The UNT Digital Library
Measurements on the Thermal Expansion of Fused Silica
Scientific paper issued by the Bureau of Standards over thermal expansion of fused silica. As stated in the abstract, "this paper gives the results of an investigation on the thermal expansion of transparent and nontransparent fused silica for various temperature ranges between -125 and +1,000 degrees Celsius. A detailed description of the apparatus and the methods used in this research and a summary of available data obtained by previous observers on the thermal expansion of fused silica are given" (p. 1). This paper includes tables, photographs, and illustrations.
Date:
April 13, 1926
Creator:
Souder, Wilmer H. & Hidnert, Peter
System:
The UNT Digital Library
Formulas, Tables and Curves for Computing the Mutual Inductance of Two Coaxial Circles
Scientific paper issued by the Bureau of Standards over the mutual inductance of two coaxial circles. As stated in the abstract, "a number of examples are given to show the methods of computation by the different formulas, tables, and charts" (p. 541). This paper includes tables, and illustrations.
Date:
August 5, 1924
Creator:
Curtis, Harvey L. & Sparks, C. Matilda
System:
The UNT Digital Library
Theory of Determination of Ultra-Radio Frequencies by Standing Waves on Wires
Scientific paper issued by the Bureau of Standards over ultra-radio frequencies. As stated in the abstract, "this paper furnishes the theoretical background for the method of frequency standardization employing short standing waves on parallel wires" (p. 487). This paper includes tables, and illustrations.
Date:
June 23, 1924
Creator:
Hund, August
System:
The UNT Digital Library
A New Interferential Dilatometer
Scientific paper issued by the Bureau of Mines over development of a dilatometer. The instrument is used in tests of thermal expansion. The methods are presented and discussed. This paper includes an illustration.
Date:
February 28, 1920
Creator:
Priest, Irwin G.
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
Thermal Expansion of Insulating Materials
Scientific paper issued by the Bureau of Standards over studies on thermal expansion. Expansivity tests are conducted on many different insulating materials. The results of the tests are discussed. This paper includes tables, photographs, and illustrations.
Date:
December 27, 1919
Creator:
Souder, Wilmer H. & Hidnert, Peter
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
New Forms of Instruments for Showing the Presence and Amount of Combustible Gas in the Air
Scientific paper issued by the Bureau of Standards over the detection of combustible gases in the air. The design and development of new detection equipment is discussed. This paper includes tables, photographs, and illustrations.
Date:
June 23, 1919
Creator:
Weaver, E. R. & Weibel, E. E.
System:
The UNT Digital Library
Measurements on the Index of Refraction of Air for Wave Lengths from 2218 A to 9000 A
Report issued by the Bureau of Standards over measurements of air refraction. Comparison of older studies of this kind is presented. As stated in the introduction, "a brief review of the objects, experimental methods, and results of these earlier investigations will assist in explaining the purpose of this additional investigation on the index of refraction and dispersion of air described in detail in this paper" (p. 698). This report includes tables, illustrations, and photographs.
Date:
1918
Creator:
Meggers, W. F. & Peters, Chauncey G.
System:
The UNT Digital Library
Thermoelectric Measurement of Critical Ranges of Pure Iron
Report issued by the Bureau of Standards over the measurements of critical ranges of pure iron wire. The methods and materials used for the measurements are discussed. This report includes tables, and illustrations.
Date:
1918
Creator:
Burgess, George K. & Scott, H.
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
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
Equilibrium in the System: Lead Acetate, Lead Oxide, and Water, at 25⁰
Report issued by the Bureau of Standards over studies on basic acetates and their importance as an effective clarifying agent. The analytical procedures and the results of the studies are discussed. This report includes tables, and illustrations.
Date:
1915
Creator:
Jackson, Richard F.
System:
The UNT Digital Library
Specific Heat of Copper in the Interval 0⁰ to 50⁰ Celsius with a Note on Vacuum-Jacketed Calorimeters
Report issued by the Bureau of Standards over studies on the specific heat of copper. The methods and equipment used for the studies are discussed. This report includes tables, photographs, and illustrations.
Date:
1915
Creator:
Harper, D. R.
System:
The UNT Digital Library
Observations on Ocean Temperatures in the Vicinity of Icebergs and in Other Parts of the Ocean
Report issued by the Bureau of Standards over studies on ocean temperatures. Temperatures in the vicinity of icebergs are measured and compared with temperatures taken from other areas of the ocean. This report includes photographs, and illustrations.
Date:
1914
Creator:
Waidner, C. W.; Dickinson, H. C. & Crowe, J. J.
System:
The UNT Digital Library
Analysis of Alternating-Current Waves by the Method of Fourier, with Special Reference to Methods of Facilitating the Computations
Report issued by the Bureau of Standards over analysis of alternating currents. These currents are applied with the Fourier method. Descriptions of the method, and the results are presented. This report includes tables, and illustrations.
Date:
1913
Creator:
Grover, Frederick W.
System:
The UNT Digital Library
Density and Thermal Expansion of Ethyl Alcohol and of its Mixtures with Water
Report issued by the Bureau of Standards over the thermal expansion of ethyl alcohol. As stated in the introduction, "the scope of the present work includes the preparation of pure anhydrous ethyl alcohol, the determination of the density and thermal expansion of this alcohol and its mixtures with water, and the construction from these data of tables for convenient use" (p. 328). This report includes tables, and illustrations.
Date:
1913
Creator:
Osborne, N. S.; McKelvy, E. C. & Bearce, H. W.
System:
The UNT Digital Library
Coupled Circuits in Which the Secondary has Distributed Inductance and Capacity
Report issued by the Bureau of Standards over studies conducted on coupled circuits. Emphasis was placed on the secondary circuit and its inductance and capacity. The results of the studies are presented and discussed. This report includes illustrations.
Date:
1911
Creator:
Cohen, Louis
System:
The UNT Digital Library
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
The Electrical Conductivity of Commercial Copper
Report issued by the Bureau of Standards over the conductivity of copper. Samples of commercial copper were studied, and the results are presented and discussed. This report includes tables, illustrations, and photographs.
Date:
1911
Creator:
Wolff, F. A. & Dellinger, J. H.
System:
The UNT Digital Library
A Modified Method for the Determination of Relative Wave-Lengths
Report issued by the Bureau of Standards over developments made to the methods for the determination of relative wave-lengths. The methods developed are discussed. This report includes tables, and illustrations.
Date:
1911
Creator:
Priest, Irwin G.
System:
The UNT Digital Library
Platinum Resistance Thermometry at High Temperatures
Report issued by the Bureau of Standards over platinum resistance thermometry. The advantages and limitations at high temperatures are discussed. This report includes tables, and illustrations.
Date:
1911
Creator:
Waidner, C. W. & Burgess, George K.
System:
The UNT Digital Library
The Steam-Turbine Expansion Line on the Mollier Diagram, and a Short Method of Finding the Reheat Factor
Report issued by the Bureau of Standards over the Mollier diagram. The steam-turbine expansion line on the diagram is discussed. This report includes tables, and illustrations.
Date:
1911
Creator:
Buckingham, Edgar
System:
The UNT Digital Library