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A Method for Manufacturing Parabolic Mirrors

Description: A simple method is described for producing parabolic mirrors by revolving a horizontal pan of liquid plastic and allowing it to harden into the parabolic shape which has been assumed by the liquid platic. This surface can be plated without further polishing into a mirror of a quality suited to various laboratory and industrial applications.
Date: February 1, 1957
Creator: Archibald, Paul B.
Partner: UNT Libraries Government Documents Department
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Liquid Metal Fuel Reactor Experiment Monthly Progress Statement: February 1957

Description: A monthly report summarizing work perform by Babcock & Wilcox personnel for the U.S. Atomic Energy Commission. Included in this report was a study made regarding the possible use of beryllium as a core moderating material, calculations made regarding temperature distribution for various channel sizes and power levels, design parameters for initial operation of the LMFRE, and other work in the design and operation of the reactor.
Date: February 1957
Creator: Babcock & Wilcox Company
Partner: UNT Libraries Government Documents Department
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Distribution and Thickness of Salt in the Paradox Basin of Southwestern Colorado and Southeastern Utah, A Preliminary Report

Description: The following report covers investigation work done on the distribution of thick deposits of salt that had occurred in the Paradox member of the Hermosa formation of Pennsylvanian age in an area nearly 12,000 square miles of southwestern Colorado and southeastern Utah.
Date: February 1957
Creator: Baltz, Elmer H.
Partner: UNT Libraries Government Documents Department
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Fission Product Recovery From Chemical Processing Plant Waste Solutions

Description: A process is described for the recovery of potentially valuable long-lived fission product activities from the first cycle acidic waste solutions which result from the solvent extraction processing of nuclear reactor fuel elements. The metal ferricyanides and ferrocyanides were extensively investigated as scavenging agents for Cs¹³⁷, and the effects of process variables are reported.
Date: February 26, 1957
Creator: Barton, G. B.; Hepworth, J. L.; McClanahan, E. D., Jr.; Moore, R. L. & Van Tuyl, H. H.
Partner: UNT Libraries Government Documents Department
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Internal Performance of Two-Dimensional Wedge Exhaust Nozzles

Description: Memorandum presenting an experimental investigation of four rectangular-throat two-dimensional wedge exhaust nozzles. Three of the nozzles were designed to conform to Prandtl-Meyer streamlines for pressure ratios of 5, 10, and 24, and a fourth, arbitrarily contoured, with a length less than that required for isentropic expansion, was designed for a pressure ratio of about 9.
Date: February 28, 1957
Creator: Beale, William T. & Povolny, John H.
Partner: UNT Libraries Government Documents Department
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National Motor-Gasoline Survey: Summer 1956

Description: Report issued by the U.S. Bureau of Mines discussing surveys conducted on the motor gasoline sold during the summer of 1956. The amount, location, and price of gasoline sold during this time are presented. This report includes tables, illustrations, and a map.
Date: February 1957
Creator: Blade, O. C.
Partner: UNT Libraries Government Documents Department
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Sidewash in the Vicinity of Lifting Swept Wings at Supersonic Speeds

Description: Equations and charts have been presented for the conical part of the sidewash above and below swept wings at small angles of attack. This flow-field component is necessary in making calculations of the wing-induced forces and moments on stores, missiles, and pylons. All supersonic Mach numbers and wing leading-edge sweep angles have been considered.
Date: February 1957
Creator: Bobbitt, Percy J. & Maxie, Peter J., Jr.
Partner: UNT Libraries Government Documents Department
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Homogeneous Reactor Project Quarterly Progress Report: August-October 1956

Description: Report issued by the Oak Ridge National Laboratory discussing quarterly progress made by the Homogeneous Reactor Program. Descriptions of progress and studies conducted are presented. This report includes tables, illustrations, and photographs.
Date: February 19, 1957
Creator: Briggs, R. B.; Winters, C. E.; Beall, S. E.; Lane, J. A.; Bohlmann, E. G.; Bruce, F. R. et al.
Partner: UNT Libraries Government Documents Department
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Location of Uranium Occurrences in Southcentral Wyoming and Northwestern Colorado

Description: "The principal uranium deposits in southcentral Wyoming and north-western Colorado are located in or at the margins of broad Tertiary basins. Interesting and possibly commercially significant occurrences are found in other Tertiary and older rocks at widely separated locations within this region. The six maps accompanying this report give the location, name, and ownership of the mines and occurrences from which samples assaying greater than 0.10% U3O8 have been collected. Claim names, location,… more
Date: February 1957
Creator: Bromley, Charles P.
Partner: UNT Libraries Government Documents Department
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Equation of State and Heat Content of Uranium

Description: Report issued by the APDA regarting studies conducted on the state of uranium at different temperature and pressure. Calculations are presented for the differing pressures of uranium; it includes tables.
Date: February 20, 1957
Creator: Brout, Robert H.
Partner: UNT Libraries Government Documents Department
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Ground Simulator Studies of the Effects of Valve Friction, Stick Friction, Flexibility, and Backwash on Power Control System Quality

Description: Report presents results of tests made on a power control system by means of a ground simulator to determine the effects of various combinations of valve friction and stick friction on the ability of the pilot to control the system. Various friction conditions were simulated with a rigid control system, a flexible system, and a rigid system having some backlash. For the tests, the period and damping of the simulated airplane were held constant.
Date: February 8, 1957
Creator: Brown, B. Porter
Partner: UNT Libraries Government Documents Department
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Fission Fragment Ionization and Electrical Power Production

Description: "A reactor concept is discussed consisting of parallel plates, spaced with a gap equal to plate thickness with a 2.0 v potential available across the gap. Fissions are assumed to take place in a mixture of U and Ar gas between the plates. The operating scheme is as follows: U fissions in the gas; the fission fragment energy is almost all absorbed by ionization of the gas, leading to a high ion pair density in the gas; positive and negative particles are swept out of the gas by the 2.0 v field, … more
Date: February 1, 1957
Creator: Bussard, R. W.
Partner: UNT Libraries Government Documents Department
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Effect of fiber orientation on ball failures under rolling-contact conditions

Description: The rolling-contact fatigue spin rig was used to test balls of a bearing steel at maximum Hertz stresses of 600,000 to 750,000 psi. The effect of fiber orientation was observed with the ball track restricted to passing directly over the poles, coincident with the equator, or randomly around the ball. The polar areas were found to be weaker in fatigue than the nonpolar areas. This resulted in a much greater portion of the failures occurring in the polar areas than would be expected from a homoge… more
Date: February 1957
Creator: Butler, Robert H.; Bear, H. Robert & Carter, Thomas L.
Partner: UNT Libraries Government Documents Department
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Approximate solution for streamlines about a lifting rotor having uniform loading and operating in hovering or low-speed vertical-ascent flight conditions

Description: Report presenting that the usual assumption of a uniform vortex cylinder for the wake vortex structure of a uniformly loaded, lifting rotor operating in the hovering or low-speed vertical-ascent flight conditions does not yield useful results for induced velocities in the region about the periphery of the rotor.
Date: February 1957
Creator: Castles, Walter, Jr.
Partner: UNT Libraries Government Documents Department
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Calculation of Wall-Scattered Gamma Radiation Escaping through a Shield Opening - Application to the HRT

Description: A simplified method was developed for calculating wall-scatter gamma radiation escaping through a shield opening. The method was applied to the HRT and the results showed that next to the line of sight contribution, scattering of the wall of the shield opening was the main contribution to the dose at the rear edge of the shield. Design charts were prepared that give the dose as a function of the gamma source location with the reactor cell.
Date: February 19, 1957
Creator: Claiborne, H. C. & Fowler, T. B.
Partner: UNT Libraries Government Documents Department
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A General System for Calculating Burning Rates of Particles and Drops and Comparison of Calculated Rates for Carbon, Boron, Magnesium, and Isooctane

Description: Report presenting a system of general equations for computing the burning rates of small particles burning as diffusion flames. Two types of solutions are carried out: a complex numerical integration and a less complicated and rigorous analytical solution involving stepwise iteration across the temperature profile.
Date: February 1957
Creator: Coffin, Kenneth P. & Brokaw, Richard S.
Partner: UNT Libraries Government Documents Department
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Umohoite from the Lucky Mc Mine, Fremont County, Wyoming

Description: The following report describes the study of the hydrous uranium-molybdenum mineral umohoite discovered in the Lucky Mc mine, Wyoming.
Date: February 1957
Creator: Coleman, Robert G. & Appleman, Daniel E.
Partner: UNT Libraries Government Documents Department
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Theory of Self-Excited Mechanical Oscillations of Helicopter Rotors with Hinged Blades

Description: Report presenting vibrations of rotary-wing aircraft, which may derive their energy from the rotation of the rotor rather than from the air forces. The theory includes the effects of unequal stiffness of the pylon for deflections in different directions and the effect of damping in the hinges and in the pylon. Some areas of further investigation include polar symmetry and two blade cases.
Date: February 1957
Creator: Coleman, Robert P. & Feingold, Arnold M.
Partner: UNT Libraries Government Documents Department
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A Description of a Shock Wave in Free Particle Hydrodynamics with Internal Magnetic Fields

Description: Abstract: "The structure of an extremely strong magnetohydrodynamic shock is discussed in the limit of no particle collisions. It is tentatively concluded that the shock transition takes place through the mechanism of a strong electric field produced by charge separation. The pressure in the shocked plasma is due primarily to a very high electron temperature. The ions, on the other hand, undergo an irreversible temperature change of only 3."
Date: February 19, 1957
Creator: Colgate, Stirling A.
Partner: UNT Libraries Government Documents Department
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An analog computer study of several stability augmentation schemes designed to alleviate roll-induced instability

Description: From Introduction: "The purpose of the present study is to investigate these suggested methods for reducing the undesirable pitching and yawing motions of an airplane during roll maneuvers. The airplane characteristics used in this study were those of the F-100A airplane having the original small vertical tail as shown in figure 1."
Date: February 19, 1957
Creator: Creer, Brent Y.
Partner: UNT Libraries Government Documents Department
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