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Leaching and Precipitation Tests on Grants Ores

Description: Leaching tests were run on two samples from the Grants area in New Mexico. Uranium extractions of 94 per cent were obtained by leaching Sample 6-1 with solutions containing 240 lbs. of Na2CO3 and 60 lbs. of NaHCO3 per ton and by leaching Sample 6-2 with 270 lbs. of Na2CO3 and 180 lbs. of NaHCO3 per ton. Cyclic tests were completed using caustic precipitation of the leach liquor.
Date: September 10, 1951
Creator: Abrams, Charles S. & George, D'Arcy R.
Partner: UNT Libraries Government Documents Department
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Progress Report on the Fluorox Process for April 30, 1957-January 14, 1958

Description: Progress in the Fluorox program is reported. The chemical reaction of primary interest in the Fluorox program is the oxidation of UF/sub 4/ with O/sub 2/, 2UF/sub 4/ + O/sub 2/ = UO/sub 2/F/sub 2/ + UF/sub 6/; however, to study this process at higher temperatures, the thermal decomposition of UO/sub 2/F/sub 2/, 3UO/sub 2/F/sub 2/ = 2/3 U/sub 3 /O/sub 8/ + UF/sub 6/ + 1/3 O/sub 2/, is being investigated by thermogravimetric methods in the temperature range 750 to 900 deg C. A fluidized bed react… more
Date: September 10, 1958
Creator: Adams, J. B.; Ferris, L. M. & Scott, C. D.
Partner: UNT Libraries Government Documents Department
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Stress Analysis of Bulk Effluent System Components in B and C Reactors

Description: This report presents a study of the stresses induced in the elbow and downcomer of the B and C Reactors (bulk effluent systems) by flow momentum and pressurization effects. It is desirable to ascertain the limitations on the bulk outlet temperatures and flow rates from a stress viewpoint; the elbow, top coverplate of downcomer, and top baffle plate being the most severely stressed components.
Date: July 10, 1958
Creator: Adams, O. E., Jr.
Partner: UNT Libraries Government Documents Department
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Energy Spectrum of Deuterons Stripped From He3 and the Resultant Neutron Yield

Description: The attenuation curve of the deuterons stripped from He3 has been measured with a Faraday cup. The corresponding curve at 190 Mev was fit by assuming that the deuterons were monoenergetic, with three processes taking place.
Date: March 10, 1953
Creator: Adelman, F. L.
Partner: UNT Libraries Government Documents Department
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A Study of Efficiencies and Pressure Drop Characteristics of Air-Filtering Media

Description: Removal of particles from air is discussed in terms of three classes of filtering media--air-sampling, respirator, and air-cleaning. Plots of efficiency versus filtering velocity are presented. The pressure drop characteristics of the filters are discussed in terms of initial pressure drops of the clean filters, variations in pressure drop of the individual filters, and comparison of loading rates.
Date: August 10, 1953
Creator: Adley, F. E.; Scott, R. H. & Gill, W. E.
Partner: UNT Libraries Government Documents Department
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Experimental Static Aerodynamic Forces and Moments at High Subsonic Speeds on a Missile Model During Simulated Launching From the Midsemispan Location of a 45 Degree Sweptback Wing-Fuselage-Pylon Combination

Description: "An investigation was made at high subsonic speeds in the Langley high-speed 7- by 10-foot tunnel to determine the static aerodynamic forces and moments on a missile model during simulated launching from the midsemispan location of a 45 degree sweptback wing-fuselage-pylon combination. The results indicated significant variations in all the aerodynamic components with changes in chordwise location of the missile. Increasing the angle of attack caused increases in the induced effects on the miss… more
Date: January 10, 1957
Creator: Alford, William J., Jr. & King, Thomas J., Jr.
Partner: UNT Libraries Government Documents Department
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The Catalysis of Nuclear Reactions by mu Mesons

Description: In the course of a recent experiment involving the stopping of negative K mesons in a 10-inch liquid hydrogen bubble chamber, an interesting new reaction was observed to take place. The chamber is traversed by many more negative {mu} mesons than K mesons, so that in the last 75,000 photographs, approximately 2500 {mu}{sup -} decays at rest have been observed. In the same pictures, several hundred {pi}{sup -} mesons have been observed to disappear at rest, presumably by one of the ''Panofsky rea… more
Date: December 10, 1956
Creator: Alvarez, L. W.; Bradner, H.; Crawford, F. S., Jr.; Crawford, J. A.; Falk-Vairant, P.; Good, M. L. et al.
Partner: UNT Libraries Government Documents Department
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Slip Casting of UO₂

Description: Slip casting of UO₂ was investigated briefly as an alternate method of fabricating UO₂ fuel material in support of the Plutonium Recycle Test Reactor.
Date: July 10, 1958
Creator: Anicetti, R. J. & Stenquist, D. R.
Partner: UNT Libraries Government Documents Department
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Some Measurements of Flying Qualities of a Douglas D-558-II Research Airplane During Flights to Supersonic Speeds

Description: Report presenting some measurements of the dynamic lateral stability and lateral and longitudinal trim of a Douglas D-558-II in flights up to a Mach number of 1.87 and an altitude of about 67,000 feet. Testing indicated that the airplane flying in low density air at supersonic speeds had poor dynamic lateral stability, which worsened as the Mach number was increased to 1.85.
Date: March 10, 1953
Creator: Ankenbruck, Herman O. & Dahlen, Theodore E.
Partner: UNT Libraries Government Documents Department
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Hydrodynamic Directional Behavior of a Swept Planing-Tail Hull

Description: "A qualitative investigation of the low-speed directional behavior of a swept planing-tail hull was made in the Langley tank no. 2 in still water and still air with the use of a free self-propelled model. The configuration was directionally unstable over a range of low speed. It was, however, directionally controllable at all speeds by use of the rudder and elevator. Several modifications that were investigated did not improve the controllability" (p. 1).
Date: January 10, 1952
Creator: Arabian, Donald D.
Partner: UNT Libraries Government Documents Department
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Free-Flight Longitudinal-Stability Investigation Including Some Effects of Wing Elasticity From Mach Numbers of 0.85 to 1.34 of a Tailless Missile Configuration Having a 45 Degree Sweptback Wing of Aspect Ratio 5.5

Description: Report presenting a free-flight longitudinal-stability investigation between Mach numbers of 0.85 and 1.34 to obtain the aerodynamic characteristics of a long-range, jet-propelled, ground-to-ground missile with a wing of aspect ratio 5.5, 45 degrees of sweepback, and taper ratio 0.4 on a body with a vertical tail. Two models with two different wing materials were flown. Results regarding trimmed flight, pitching flight, and aeroelastic calculations are provided.
Date: August 10, 1953
Creator: Arbic, Richard G. & Gillespie, Warren, Jr.
Partner: UNT Libraries Government Documents Department
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Corrosion of Stainless Steels by HNO3-HF-AL(NO3)3 Mixtures During Evaporation of Plutonium Product Streams

Description: Corrosion studies on various stainless steels were carried out using aluminum ion as a fluoride complexing agent to minimize corrosive attack on the evaporator. The rate of corrosion of stainless steels during the evaporation of HF-HNO3 mixture is quite high even in the presence of excess aluminum. With two moles of aluminum ion per mole of fluoride ion, the corrosion rate of stainless steel types 329 and 309-Cb was approximately 30 to 40 mils per year. Corrosion rates of other type of stainles… more
Date: November 10, 1952
Creator: Arehart, T. A. & Runion, T. C.
Partner: UNT Libraries Government Documents Department
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Reactor Automatic Control and Load Swing Tests. Test Results DL-S-144 (T-554924). Section I

Description: The purpose of this test was to determine the controlling ability of the Reactor Power and Temperature Control System and to determine the operational characteristics of the station during load swings. The Reactor Power and Temperature Control System satisfactorily controlled rod movements to maintain all primary plant parameters within their individual limits during steady state operation, ramp functions load changes and a peak xenon burnout transient. The operational characteristics of the st… more
Date: February 10, 1959
Creator: Baird, John B.
Partner: UNT Libraries Government Documents Department
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Design of an Eddy-Current Brake for a Sodium-Cooled Nuclear Power Reactor

Description: Two eddy-current electromagnets to act as brskes were designed and installed in the sodium-cooled nuclear pcwer reactor SRE to throttle sodium flow throughout the reactor after shutdown in order to maintain a constant reactor temperature gradient. One brake was used on the primary piping system, the other on the secondary system. It was determined that the eddy-current brake should cause a dragging pressure of 0.3 psi at a flow rate of 12 gal/min. The flux density necessary to produce this pres… more
Date: July 10, 1958
Creator: Baker, R. S.
Partner: UNT Libraries Government Documents Department
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An Investigation of Scaling of Zirconium at Elevated Temperatures

Description: The scaling behavior of zirconium has been investigated in the temperature range 800 to 1000°C. From the results thus far obtained, it appears that zirconium scales at a somewhat lower rate in O2 (760 mm Hg) than in air.
Date: July 10, 1954
Creator: Baldwin, W. M. Jr. & Garibotti, D. J.
Partner: UNT Libraries Government Documents Department
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Diffusion of Stack Gases in Very Stable Atmospheres: Case II

Description: In 1949 Barad presented two solutions to the general diffusion equation. Basic in both solutions is the assumption that in very stable atmospheres a point source may be replaced by a vertical area of uniform concentration at a short distance downwind. This vertical area is considered to exist at the distance at which the plume finally "levels-off" and assumes a flat ribbon-like appearance. In addition if the distance over which diffusion takes place is limited to one or two miles and if only… more
Date: August 10, 1953
Creator: Barad, M. L. & Shorr, B.
Partner: UNT Libraries Government Documents Department
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The Antiproton-Nucleon Annihilation Process (AntiprotonCollaboration Experiment)

Description: In the exposure to a 7 0 0-MeV/c negative particle beam, 35 antiproton stars have been found. Of these antiprotons, 21 annihilate in flight and three give large-angle scatters ( {Theta} > 15 , T{sub P-} > 50 Mev), while 14 annihilate at rest. From the interactions in flight we obtain the total c r o s s section for antiproton interaction
Date: September 10, 1956
Creator: Barkas, W. H.; Birge, R. W.; Chupp, W. W.; Ekspong, A. G.; Goldhaber, G.; Goldhaber, S. et al.
Partner: UNT Libraries Government Documents Department
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An Analysis of the Effect of Structural Feedback on the Flutter of a Control Surface Having a Power-Boost System

Description: From Summary: "Such devices as leading- and trailing-edge flaps which are now in use on operational aircraft permit the attainment of maximum airplane lift coefficients, power-off, of the order of 2.8 (reference 1). Airfoil-section maximum lift coefficients as high as 5.5 have been obtained in wind-tunnel tests (see, for example, reference 2), and in a limited flight investigation airplane lift coefficients of 4.2 were obtained (reference 3)."
Date: June 10, 1952
Creator: Barnes, Robert H.
Partner: UNT Libraries Government Documents Department
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Flight Test of a Radial-Burning Solid-Fuel Ram Jet

Description: Report presenting an investigation of a rocket-launched ram-jet engine with radial-burning solid fuel. Results regarding acceleration, altitude, durability of the fuel, net and gross thrust coefficients, and overall fuel specific impulse are provided.
Date: December 10, 1952
Creator: Bartlett, Walter A., Jr. & Dettwyler, H. Rudolph
Partner: UNT Libraries Government Documents Department
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