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Efficiency Rating Systems Preliminary Report
This report is about the Efficiency Rating Systems Preliminary Report
Date:
May 1947
Creator:
Graves, W. Brooke
System:
The UNT Digital Library
Some Recent Contributions to the Study of Transition and Turbulent Boundary Layers
Report presenting a paper in two parts about transition and turbulent boundary layers. The first part reviews the current problem of the instability of laminar boundary layers. The second part reviews the current state of knowledge of the mechanics of turbulent boundary layers and of the methods now being used for fundamental studies of the turbulent fluctuations in turbulent boundary layers.
Date:
April 1947
Creator:
Dryden, Hugh L.
System:
The UNT Digital Library
Considerations of the Total Drag of Supersonic Airfoil Sections
The results of calculations of the viscous and pressure drags of some two-dimensional supersonic airfoils at zero lift are presented. The results indicate that inclusion of viscous drag alters many previous results regarding the desirability of certain airfoil shapes for securing low drags at supersonic speeds. At certain Reynolds and Mach numbers, for instance, a circular-arc airfoil may theoretically have less drag than the previously advocated symmetrical wedge-shape profile; although under different conditions, the circular-arc airfoil may have a higher drag.
Date:
July 1947
Creator:
Ivey, H. Reese & Klunker, E. Bernard
System:
The UNT Digital Library
Special Studies of Reservoir Oils in Naval Petroleum Reserve No. 1, Elk Hills Field, California
Report from the U.S. Bureau of Mines on studies conducted on the reservoir oils of Elk Hills field. Methods and instrumentation used in the studies are presented. This report includes tables, graphs, and maps.
Date:
April 1947
Creator:
Cook, Alton B. & Shea, G. B.
System:
The UNT Digital Library
Recovery of Alumina From Kaolin by the Lime-Soda Sinter Process
Report issued by the U.S. Bureau of Mines on exploration of kaolin clay deposits for alumina. Properties of the kaolin clay and alumina recovered are listed. This report includes tables, graphs, and illustrations.
Date:
May 1947
Creator:
Cservenyak, Frank J.
System:
The UNT Digital Library
Comparative Study of Magnetic Surveys of Worcester County, Maryland: Made on the Ground and From Airplane Observations
Report issued by the U.S. Bureau of Mines on magnetic surveys conducted on Worcester County, Maryland. The results of observations obtained on the ground and from the air are presented. This report includes tables, graphs, and maps.
Date:
May 1947
Creator:
Kuehn, Hugo E. & Dent, Guy E.
System:
The UNT Digital Library
Daisy Fluorite Mine: Rosiclare Lead and Fluorspar Mining Company, Hardin County, Illinois
Report from the U.S. Bureau of Mines over the studies conducted on the Daisy mine and the Hillside mine in Hardin County, Illinois. Properties of the mines, and the types of mineral deposits found in each are presented. This report includes maps, and illustrations.
Date:
June 1947
Creator:
Muir, Neal M.
System:
The UNT Digital Library
Beneficiation of Chromite Ores From Western United States
Report issued by the U.S. Bureau of Mines on the sampling of chrome ore deposits in the western United States. Physical properties of the samples collected are presented. This report includes tables.
Date:
June 1947
Creator:
Batty, J. V.; Mitchell, T. F.; Havens, R. & Wells, R. R.
System:
The UNT Digital Library
Lake Valley Manganese Deposits, Sierra County, New Mexico
Report issued by the Bureau of Mines over the manganese deposits in Sierra County, New Mexico. Descriptions of the physicality, and characteristics of the manganese ore are presented. This report includes tables, maps, and illustrations.
Date:
June 1947
Creator:
Apell, G. A.; Hazen, Scott W. & Howe, E. G.
System:
The UNT Digital Library
Examination of Zinc-Lead Mines in the Wallapai Mining District, Mohave County, Arizona
Report issued by the Bureau of Mines over studies on the zinc-lead mines in Mohave County, Arizona. Descriptions of the characteristics, development, and production of the ore are presented. This report includes tables, maps, and illustrations.
Date:
August 1947
Creator:
Haury, Peter S.
System:
The UNT Digital Library
Investigation of Coal Deposits in the Coal Creek District, Gunnison County, Colorado: Progress Report 1
Report issued by the Bureau of Mines on studies of coal deposits of the Coal Creek district. The physicality, geology, and characteristics of samples are listed. This report includes tables, and a map.
Date:
April 1947
Creator:
Toenges, Albert L.; Turnbull, Louis A.; Davis, J. D. & Reynolds, D. A.
System:
The UNT Digital Library
Flood-Prevention Projects at Pennsylvania Anthracite Mines: Progress Report for 1945
Report issued by the Bureau of Mines over studies conducted on flood-prevention developed for mine systems. A history of flood prevention procedures as well as updated flood-prevention is presented. This report includes tables, graphs, maps, photographs, and illustrations.
Date:
August 1947
Creator:
Ash, S. H.; Cassap, W. E.; Westfield, James; Eaton, W. L.; Romischer, W. M.; Podgorski, E. J. et al.
System:
The UNT Digital Library
National Motor-Gasoline Survey: Winter 1946-47
Report issued by the Bureau of Mines over motor-fuels sold during the winter of 1946-1947. Locations and properties of fuel samples are presented. This report includes tables and a map.
Date:
August 1947
Creator:
Blade, O. C.
System:
The UNT Digital Library
Andover-Sulphur Hill Iron Mines, Sussex County, New Jersey
Report issued by the Bureau of Mines on the iron mines of Sussex County, New Jersey. Descriptions of the physicality, location, and drilling methods used on the deposits are presented. This report includes tables, maps, and illustrations.
Date:
December 1947
Creator:
Lynch, Victor J.
System:
The UNT Digital Library
Experiment in Underground Gasification of Coal, Gorgas, Alabama
Report issued by the Bureau of Mines over studies and experiments conducted on underground coal gasification. The results of the experiments are listed. Description and analysis of the coal and coal bed are also presented. This report includes tables, maps, photographs, and illustrations.
Date:
August 1947
Creator:
Dowd, James J.; Elder, James L.; Capp, J. P. & Cohen, Paul
System:
The UNT Digital Library
Columbia River Magnetite Sands, Clatsop County, Oregon, and Pacific County, Washington, Hammond and McGowan Deposits
Report issued by the U.S. Bureau of Mines on investigations of the magnetite-bearing sands near the Columbia River between Oregon and Washington. Properties of the sands and magnetite deposits are listed. This report includes tables, maps, and illustrations.
Date:
February 1947
Creator:
Kelly, James V.
System:
The UNT Digital Library
Blackbird Cobalt Deposits, Lemhi County, Idaho
Report from the U.S. Bureau of Mines on exploration of known cobalt ore deposits in Lemhi County, Idaho. Physical features of the area, and properties of the cobalt samples collected are presented. This report includes tables, maps, and illustrations.
Date:
February 1947
Creator:
Reed, G. C. & Herdlick, J. A.
System:
The UNT Digital Library
United States Earthquakes, 1947
Report discussing earthquake activity in the United States during 1947. The report is broken down by regions and has sections for specific earthquakes.
Date:
1947
Creator:
unknown
System:
The UNT Digital Library
Phosphorus Turnover and Photosynthesis
The participation of phosphorus in biological oxidation-reduction reactions of the type found in glycolysis ADP + PO{sub 4}H{sup -} + 3-phosphoglyceraldehyde + DPN{sup +} = 3-phosphoglycerate{sup -} + 2H{sup +} + DPNH + ATP has suggested theories in which similar reactions are proposed for photosynthesis. In these theories the reducing power of photosynthesis is utilized not only for reduction of carbon dioxide but also, by means of coupled oxidations, for the generation of high-energy phosphate bonds, or in the last reference directly for the generation of high-energy phosphate. Since in these theories acyl phosphate is formed from inorganic phosphate, they are amenable to proof without isolation of particular intermediates, by means of radioactive phosphorus. It would be expected that the rate of conversion of inorganic phosphate to organic phosphate would be greater in light than in the dark. They have investigated this possibility under a variety of conditions and are unable to substantiate the theories.
Date:
November 1, 1947
Creator:
Aronoff, Sam & Calvin, Melvin
System:
The UNT Digital Library
Diffraction Effects in Neutron Attenuation Measurements
All errors due to diffraction effects in a neutron attenuation experiment are computed. Also a special experiment to measure the forward intensity of diffracted neutrons from lead and copper is described, and the results given. These agree with the theoretical values.
Date:
November 1, 1947
Creator:
McMillan, E. M. & Sewell, D. C.
System:
The UNT Digital Library
200 Area monthly reports, July--December 1947
This document presents the monthly reports of the 200 area technical group for July--December, 1947. (KS)
Date:
January 1, 1947
Creator:
Stanford, R.E.L. & Christy, J.T.
System:
The UNT Digital Library
Problems of Air-Borne Contamination in Handling of Pu F₄ Powders
Abstract: Studies were made of the air-borne contamination present during the operation of reducing plutonium tetrafluoride powder to the metal. Equipment design changes were made and operation technique changes were made until the amount of contamination present during operations was well below tolerance levels.
Date:
July 31, 1947
Creator:
Kennedy, William R.; Dumrose, A. & Ludwig, A.
System:
The UNT Digital Library
Fraunhofer Diffraction Pattern Produced by a Slit of Varying Width and its Application to High Speed Cameras
Abstract: "A theoretical and experimental investigation is made of the diffraction pattern produced by a slit, whose aperture varies uniformly from a constant value A to zero. The results of this investigation are applied to a proposed high speed camera. It is shown that diffraction effects are very serious and cannot be neglected. It seems, unless the suggested design of this high speed camera is changed, the camera will be of little use for accurate measurements, and photographs will show too much blue to give details."
Date:
November 11, 1947
Creator:
Geiger, F. E. & Brixner, Berlyn
System:
The UNT Digital Library
A Method for Rolling Uranium Foil
"This report gives briefly a rather simple method for fabricating foils from uranium buttons. Two log sheets one of a U-238 run and one of a U-255 run are given."
Date:
October 21, 1947
Creator:
Bernard, George L., (Jr.)
System:
The UNT Digital Library