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Aerodynamic characteristics of NACA 0012 airfoil section at angles of attack from 0 degrees to 180 degrees

Description: Report presenting the aerodynamic characteristics of the NACA 0012 airfoil section at a range of angles of attack from 0 to 180 degrees. Data were obtained at two different Reynolds numbers depending on whether the airfoil surfaces were smooth or had roughness applied at the leading and trailing edges. After the stall with the rounded edge of the airfoil foremost, a second lift-coefficient peak was obtained at an angle of attack of about 45 degrees.
Date: January 1955
Creator: Critzos, Chris C.; Heyson, Harry H. & Boswinkle, Robert W., Jr.
Partner: UNT Libraries Government Documents Department
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Airborne Reconnaissance Project, Green River Basin, Wyoming

Description: Abstract: A part of the Green River Basin airborne reconnaissance project, re: memo to Phillip L. Merritt, March 12, 1954, Proposed Airborne Reconnaissance Project, Green River Basin, Wyoming, was completed during the months from July though October 1954. No uranium mineralization of commercial value was found.
Date: January 1955
Creator: Magleby, Dan N. & Meehan, R. J.
Partner: UNT Libraries Government Documents Department
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Analog study of interacting and noninteracting multiple-loop control systems for turbojet engines

Description: The results of an analog investigation of several turbojet-engine control configurations is presented in this report. Both proportional and proportional-plus-integral controllers were studied, and compensating terms for engine interaction were added to the control system. Data were obtained on the stability limits and the transient responses of these various configurations. Analytical expressions in terms of the component transfer functions were developed for the configurations studied, and the… more
Date: 1955
Creator: Pack, George J. & Phillips, W. E., Jr.
Partner: UNT Libraries Government Documents Department
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Analysis of Borax Experiments

Description: An analysis of the self-limitation of power excursions by steam production in heterogeneous water-moderated reactors using MTR- type fuel elements seems to give excellent agreement with Borax data on both fuel plate temperature rise and total energy for excursions in which the reactor is initially at saturation temperature. A simple model for steam production is developed from thermodynamic and heat diffusion considerations. In those cases for which the reactor is substantially sub-cooled, it a… more
Date: January 1, 1955
Creator: Edlund, M.C. & Noderer, L.C.
Partner: UNT Libraries Government Documents Department
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Analysis of Laminar Forced-Convection Heat Transfer in Entrance Region of Flat Rectangular Ducts

Description: From Introduction: "Beyond the position where the boundary layer treatment can no longer be used, curves have been faired to connect the Nusselt number results of the present analysis with those of reference 3, in which a parabolic velocity profile is assumed throughout the entire duct length. So that a comparison could be made with the results of reference 3, the boundary layer analysis was used to study the development of the temperature profile associated with a parabolic velocity profile th… more
Date: January 1955
Creator: Sparrow, E. M.
Partner: UNT Libraries Government Documents Department
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Analysis of uranium hexafluoride-hydrogen fluoride solutions by freezing point determination : errors caused by liquid -vapor equilibrium

Description: A report detailing the analysis of uranium hexafluoride-hydrogen fluoride solutions by their freezing point determination. This analysis was conducted by measuring vapor pressures at the freezing temperatures of different compositions of uranium hexafluoride-hydrogren fluoride solutions.
Date: 1955
Creator: Davis, W. & Kobisk, E. H.
Partner: UNT Libraries Government Documents Department
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Annealing of crystal distortion in irradiated graphite

Description: From introduction: "As part of the program for improvement of graphite, the structural characteristics of graphite have been studied to determine the relation between physical and structural changes during irradiation."
Date: 1955
Creator: Austin, Alfred E. & Harrison, Ralph J.
Partner: UNT Libraries Government Documents Department
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Apparatus for visual study of corrosion by hot water

Description: Report describing an apparatus for visual study of corrosion of uranium by hot water. A windowed autoclave was designed and constructed to permit visual study of the reaction under conditions simulating a cladding failure in service.
Date: 1955
Creator: Grieser, Daniel R. & Simons, Eugene M.
Partner: UNT Libraries Government Documents Department
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The Asbestos Industry

Description: Report issued by the Bureau of Mines over the production and use of asbestos. Descriptions of the different types of asbestos are discussed. Its applications are also discussed. This report includes tables, illustrations, and photographs.
Date: 1955
Creator: Bowles, Oliver
Partner: UNT Libraries Government Documents Department
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Bibliography of the Fischer-Tropsch Synthesis and Related Processes (In Two Parts): [Part] 2. Patents

Description: Report issued by the Bureau of Mines over the patents of the Fischer-Tropsch synthesis. As stated in the introduction, "this review contains abstracts of the technical literature and patents dealing with the history, development, and commercial applications of the Fischer-Tropsch synthesis" (p. iii).
Date: 1955
Creator: Anderson, Hazel C.; Wiley, J. L. & Newell, A.
Partner: UNT Libraries Government Documents Department
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Bonding of uranium to uranium

Description: From abstract: "Some mechanical properties of uranium joined to uranium by means of sinter welding described. The types of uranium investigated were powdered and cast material. Comparison of results obtained by the testing of the whole and joined material are presented. Although the joined material to date does not possess strength of the whole material, the results are promising. Work is continuing."
Date: 1955
Creator: Hum, Jack K. Y.
Partner: UNT Libraries Government Documents Department
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Boron-stainless steel control calibrations

Description: From introduction: " Boron-stainless steel rods have been investigated as to their worth as control rods. The intent is to find a possible replacement for hafnium."
Date: 1955
Creator: Jankowski, F. J. & Klein, D.
Partner: UNT Libraries Government Documents Department
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Carnotite-Bearing Sandstone in Cedar Canyon, Slim Buttes, Harding County, South Dakota

Description: From abstract: Carnotite-bearing sandstone and claystone have been found in the Chadron formation of the White River group of Oligocene age in the southern part of the Slim Buttes area, Harding County, S. Dak. The carnotite is an efflorescent yellow coating on lenticular silicified sandstone. Locally, the mineralized sandstone contains 0.23 percent uranium. The uranium and vanadium ions are believed to have been derived from the overlying mildly radioactive tuffaceous rocks of the Arikaree form… more
Date: 1955
Creator: Gill, James R. & Moore, George William
Partner: UNT Libraries Government Documents Department
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Characteristics of Turbulence in Boundary Layer with Zero Pressure Gradient

Description: "The results of an experimental investigation of a turbulent boundary layer with zero pressure gradient are presented. Measurements with the hot-wire anemometer were made of turbulent energy and turbulent shear stress, probability density and flattening factor of u-fluctuation (fluctuation in x-direction), spectra of turbulent energy and shear stress, and turbulent dissipation. The importance of the region near the wall and the inadequacy of the concept of local isotropy are demonstrated" (p. 1… more
Date: 1955
Creator: Klebanoff, P. S.
Partner: UNT Libraries Government Documents Department
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Charts for Estimating Performance of High-Performance Helicopters

Description: Note presenting theoretically derived charts showing the profile-drag-thrust ratio for a helicopter rotor operating in forward flight and with hinged rectangular blades with a linear twist of -8 degrees. The charts, which show the profile-drag characteristics of the rotor for various combinations of pitch angle, ratio of thrust coefficient to solidity, and a parameter representing shaft power input, are presented for tip-speed ratios ranging from 0.05 to 0.50.
Date: January 1955
Creator: Gessow, Alfred & Tapscott, Robert J.
Partner: UNT Libraries Government Documents Department
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Chromite Deposits in Central Part Stillwater Complex, Sweet Grass County, Montana

Description: From abstract: The chromite deposits of the central part of the Stillwater complex lie in a belt 9 miles long between the valleys of Boulder River and the West Fork of the Stillwater River in Sweet Grass County, Mont. The chromite occurs as layers near the middle part of the ultramafic zone in the lower part of the complex. The layers, originally horizontal, have been tilted so that they dip northeastwards at angles ranging from nearly horizontal to nearly vertical, and are cut by many cross fa… more
Date: 1955
Creator: Howland, A. L.
Partner: UNT Libraries Government Documents Department
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Chrysotile-Asbestos Deposits of Arizona

Description: Report issued by the U.S. Bureau of Mines discussing asbestos mining and production in Arizona. As stated in the summary, "this paper describes most of the chrysotile-asbestos deposits of Arizona. Mining methods are discussed briefly and asbestos-mill flowsheets are incorporated" (p. 1). This report includes tables, maps, illustrations, and photographs.
Date: January 1955
Creator: Stewart, L. A.
Partner: UNT Libraries Government Documents Department
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Collected Reports on Fission Cross Sections of U237 in Thermal Neutron, Intermediate Neutron, and Degraded Fission Neutron Spectra

Description: Part 1. The neutron fission cross section of U237 has been measured in a thermal neutron spectrum and in a somewhat degraded fission spectrum. The fission cross section for thermal neutrons is found to be <2 barns; the ratio of the fission cross section of U237 to that of U235 in the degraded fission spectrum is found to be 0.476 +- 15% which corresponds to [formula] in this spectrum equal to 0.66 +- 0.10 barns. Part 2. The average neutron fission cross section of U237 has been measured in a ne… more
Date: January 1, 1955
Creator: Cowan, G. A. (George A.), 1920-2012
Partner: UNT Libraries Government Documents Department
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Component Performance Investigation of J71 Type II Turbines 5 - Internal Flow Conditions of J71 Type IIA Turbine

Description: An experimental investigation of the J71 Type IIA turbine was conducted at the equivalent design speed and work output. The design stagework distribution was closely approached, although the design vector diagram was not attained. Efficiencies of 0.904, 0.851, and 0.806 were obtained for the first, second, and third stages, respectively. Losses occurred near the hub and tip for all three rotors. The third-stage losses, however, were significantly greater than those of either the first or second… more
Date: 1955
Creator: Schum, Harold J.; Davison, Elmer H. & Petrash, Donald A.
Partner: UNT Libraries Government Documents Department
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Continuous Denitration--Design Specification Letter No. 1

Description: Design and technical specifications are outlined for equipment designed for the continuous calcination of UNH to UO/sub 2/. (C.W.H.)
Date: January 1, 1955
Creator: Szulinski, M. J. & Geier, R. G.
Partner: UNT Libraries Government Documents Department
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Contributions to General Geology 1951-54

Description: A report about stratigraphic studies of late Quaternary deposits in the Rocky Mountain region which reveal a widespread uncomformity separating deposits that differ lithologically. The deposits overlying the unconformity contain modern fauna that do not occur in older deposits.
Date: 1955
Creator: Hunt, Charles B.
Partner: UNT Libraries Government Documents Department
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Copper Deposits of Part of Helvetia Mining District, Pima County Arizona

Description: A report about the economic geology of four mines located in the Helvetia mining district in the Santa Rita Mountains in south central Arizona. The sedimentary rocks in Helvetia range from Cambrain to Cretaceous.
Date: 1955
Creator: Creasey, S. C. & Quick, George L.
Partner: UNT Libraries Government Documents Department
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Corrosive and Erosive Effects of Acid Mine Waters on Metals and Alloys for Mine Pumping Equipment and Drainage Facilities: Anthracite Region of Pennsylvania

Description: From Summary: "This report presents data on the corrosive and erosive effects of acid mine waters in the anthracite region on metals and alloys for pumping equipment and drainage facilities necessary to remove or control this water. This report is based on field tests conducted cooperatively by the Armco Steel Corp. and the Federal Bureau of Mines from January 1953 to June 1954 to determine the most suitable materials for constructing pumping equipment designed to handle these acid mine waters." more
Date: 1955
Creator: Ash, S. H.; Dierks, H. A.; Felegy, E. W.; Huston, K. M.; Kennedy, D. O.; Miller, P. S. et al.
Partner: UNT Libraries Government Documents Department
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