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Efficiency Rating Systems Preliminary Report

Description: This report is about the Efficiency Rating Systems Preliminary Report
Date: May 1947
Creator: Graves, W. Brooke
Partner: UNT Libraries Government Documents Department
open access

Some Recent Contributions to the Study of Transition and Turbulent Boundary Layers

Description: 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.
Partner: UNT Libraries Government Documents Department
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Considerations of the Total Drag of Supersonic Airfoil Sections

Description: 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 … more
Date: July 1947
Creator: Ivey, H. Reese & Klunker, E. Bernard
Partner: UNT Libraries Government Documents Department
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Recovery of Alumina From Kaolin by the Lime-Soda Sinter Process

Description: 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.
Partner: UNT Libraries Government Documents Department
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Daisy Fluorite Mine: Rosiclare Lead and Fluorspar Mining Company, Hardin County, Illinois

Description: 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.
Partner: UNT Libraries Government Documents Department
open access

Beneficiation of Chromite Ores From Western United States

Description: 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.
Partner: UNT Libraries Government Documents Department
open access

Lake Valley Manganese Deposits, Sierra County, New Mexico

Description: 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.
Partner: UNT Libraries Government Documents Department
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Examination of Zinc-Lead Mines in the Wallapai Mining District, Mohave County, Arizona

Description: 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.
Partner: UNT Libraries Government Documents Department
open access

Flood-Prevention Projects at Pennsylvania Anthracite Mines: Progress Report for 1945

Description: 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.
Partner: UNT Libraries Government Documents Department
open access

National Motor-Gasoline Survey: Winter 1946-47

Description: 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.
Partner: UNT Libraries Government Documents Department
open access

Andover-Sulphur Hill Iron Mines, Sussex County, New Jersey

Description: 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.
Partner: UNT Libraries Government Documents Department
open access

Experiment in Underground Gasification of Coal, Gorgas, Alabama

Description: 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
Partner: UNT Libraries Government Documents Department
open access

Columbia River Magnetite Sands, Clatsop County, Oregon, and Pacific County, Washington, Hammond and McGowan Deposits

Description: 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.
Partner: UNT Libraries Government Documents Department
open access

Blackbird Cobalt Deposits, Lemhi County, Idaho

Description: 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.
Partner: UNT Libraries Government Documents Department
open access

United States Earthquakes, 1947

Description: 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
Partner: UNT Libraries Government Documents Department
open access

Phosphorus Turnover and Photosynthesis

Description: 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 phosphat… more
Date: November 1, 1947
Creator: Aronoff, Sam & Calvin, Melvin
Partner: UNT Libraries Government Documents Department
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Diffraction Effects in Neutron Attenuation Measurements

Description: 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.
Partner: UNT Libraries Government Documents Department
open access

200 Area monthly reports, July--December 1947

Description: 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.
Partner: UNT Libraries Government Documents Department
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Problems of Air-Borne Contamination in Handling of Pu F₄ Powders

Description: 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.
Partner: UNT Libraries Government Documents Department
open access

Fraunhofer Diffraction Pattern Produced by a Slit of Varying Width and its Application to High Speed Cameras

Description: 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… more
Date: November 11, 1947
Creator: Geiger, F. E. & Brixner, Berlyn
Partner: UNT Libraries Government Documents Department
open access

A Method for Rolling Uranium Foil

Description: "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.)
Partner: UNT Libraries Government Documents Department
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