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Theory of Determination of Ultra-Radio Frequencies by Standing Waves on Wires

Description: Scientific paper issued by the Bureau of Standards over ultra-radio frequencies. As stated in the abstract, "this paper furnishes the theoretical background for the method of frequency standardization employing short standing waves on parallel wires" (p. 487). This paper includes tables, and illustrations.
Date: June 23, 1924
Creator: Hund, August
Partner: UNT Libraries Government Documents Department
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Downwash and Wake Behind Plain and Flapped Airfoils

Description: "Extensive experimental measurements have been made of the downwash angles and the wake characteristics behind airfoils with and without flaps and the data have been analyzed and correlated with the theory. A detailed study was made of the errors involved in applying lifting-line theory, such as the effects of a finite wing chord, the rolling-up of the trailing vortex sheet, and the wake. The downwash angles, as computed from the theoretical span load distribution by means of the Biot-Savart eq… more
Date: June 23, 1938
Creator: Silverstein, Abe; Katzoff, S. & Bullivant, W. Kenneth
Partner: UNT Libraries Government Documents Department
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Production of DsSub 2$O for Use in the Fission of Uranium

Description: Brief discussions of experimental methods, kinetics, and the catalysts used in the production of D{sub 2}O are presented (J.E.D.)
Date: June 23, 1941
Creator: Urey, H. C.; Grosse, A. V. & Walden, G.
Partner: UNT Libraries Government Documents Department
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Jacket Temperature Near End of Slug

Description: Some situations which give rise to a hot ring around the slug near the end are considered; namely rounded slug ends in the long cartridge design, and the Wilkins effect in the current unbonded short slug design.
Date: June 23, 1944
Creator: Young, Gale Jay
Partner: UNT Libraries Government Documents Department
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Modified Liquid Phase Reactor

Description: The following report describes a modified Kraus type reactor that had been constructed for use in bets chemical conversion operations.
Date: June 23, 1944
Creator: Zuidema, J. W. & Ballard, A. E.
Partner: UNT Libraries Government Documents Department
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Correlation analysis of water in 107 F

Description: This memorandum provides an analysis of data on the effects of various conditions and water content on activity of water as it enters the retention basin in 107 F.
Date: June 23, 1945
Creator: Paas, H. J. & Bradford, B.
Partner: UNT Libraries Government Documents Department
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Estimation of the Spin and Recovery Characteristics of the North American XSN2J-1 Airplane

Description: "The probable spin and recovery characteristics of the XSN2J-1 air-plane have been estimated on the basis of the results of brief test a performed on a model of an airplane of somewhat similar design. The spin-recovery tail-parachute requirements for the airplane were also determined end, in addition, an analysis was made to determine the best method of emergency pilot escape during a spin. The results of the investigation indicate that the recovery characteristics of the airplane will be satis… more
Date: June 23, 1947
Creator: Snyder, Thomas L.
Partner: UNT Libraries Government Documents Department
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Force, Static Longitudinal Stability, and Control Characteristics of a 1/16-Scale Model of the Bell XS-1 Transonic Research Airplane at High Mach Numbers

Description: Report presenting results obtained to determine the effects of compressibility at high Mach numbers on a scale model of the Bell XS-1 transonic research airplane. The results are presented for several model configurations through a range of Mach numbers. Results regarding aerodynamic characteristics and static longitudinal stability characteristics are provided.
Date: June 23, 1948
Creator: Mattson, Axel T. & Loving, Donald L.
Partner: UNT Libraries Government Documents Department
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Heat Transfer from High-Temperature Surfaces to Fluids. 3 - Correlation of Heat-Transfer Data for Air Flowing in Silicon Carbide Tube with Rounded Entrance, Inside Diameter of 3/4 Inch, and Effective Length of 12 Inches

Description: "A heat-transfer investigation was conducted with air flowing through an electrically heated silicon carbide tube with a rounded entrance, an inside diameter of 3/4 inch, and an effective heat-transfer length of 12 inches over a range of Reynolds numbers up to 300,000 and a range of average inside-tube-wall temperature up to 2500 R. The highest corresponding local outside-tube-wall temperature was 3010 R. Correlation of the heat-transfer data using the conventional Nueselt relation wherein phys… more
Date: June 23, 1949
Creator: Sams, Eldon W. & Desmon, Leland G.
Partner: UNT Libraries Government Documents Department
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Heat Transfer from High-Temperature Surfaces to Fluids 3 - Correlation of Heat-Transfer Data for Air Flowing in Silicon Carbide Tube with Rounded Entrance, Inside Diameter of 3/4 Inch, and Effective Length of 12 Inches

Description: A heat-transfer investigation was conducted with air flowing through an electrically heated silicon carbide tube with a rounded entrance, an inside diameter of 3/4 inch, and effective heat-transfer length of 12 inches over a range of Reynolds numbers up to 300,000 and a range of average inside-tube-wall temperatures up to 2500 R. The highest corresponding local outside-tube-wall temperature was 3010 R.
Date: June 23, 1949
Creator: Sams, Eldon W. & Desmon, Leland G.
Partner: UNT Libraries Government Documents Department
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Redox Committee: Conference notes and recommendations, meeting of June 23, 1949

Description: Topics discussed include gang valve substitute devices; cost of lining cell bottom with stainless steel; and the pump development program. [The Redox plant used a reduction-oxidation process for fuel separation that allowed recovery of uranium as well as plutonium for the first time. It succeeded earlier plants (T and B) that had used methods based on the bismuth phosphate process that recovered only plutonium.]
Date: June 23, 1949
Partner: UNT Libraries Government Documents Department
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Sludge Acidification - Progress Report

Description: Report discussing the progress made on research concerning sluge-supernate acidification. This report focuses mainly on "'reverse strike' acidification and the observations of the physical characteristics of the test material," which was a synthetic incubated metal waste.
Date: June 23, 1950
Creator: Harmon, M. K.
Partner: UNT Libraries Government Documents Department
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Experimental Investigation of Boundary-Layer Suction Through Slots to Obtain Extensive Laminar Boundary Layers on a 15 Percent-Thick Airfoil Section at High Reynolds Numbers

Description: Memorandum presenting a two-dimensional wind-tunnel investigation to determine the extent to which boundary-layer removal through slots is effective as a means for maintaining extensive laminar layers at high Reynolds numbers. Results regarding drag, suction-flow and pressure-loss distribution, surface pressure distribution, lift, and difficulties encountered in obtaining extensive laminar flow are provided.
Date: June 23, 1952
Creator: Loftin, Laurence K., Jr. & Horton, Elmer A.
Partner: UNT Libraries Government Documents Department
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Experimental investigation of boundary-layer suction through slots to obtain extensive laminar boundary layers on a 15-percent-thick airfoil section at high Reynolds numbers

Description: Report presenting a wind-tunnel investigation to determine the extent to which boundary-layer removal through slots is effective as a means for maintaining extensive laminar layers at high Reynolds numbers. Results regarding drag, suction-flow and pressure-loss distribution, surface pressure distribution, lift, and some of the difficulties involved in obtaining extensive laminar flow are provided.
Date: June 23, 1952
Creator: Loftin, Laurence K., Jr. & Horton, Elmer A.
Partner: UNT Libraries Government Documents Department
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Feed Pump Survey for Homogeneous Reactor Project

Description: In response to a request by the Homogeneous Reactor Project, the Engineering Department has contacted various pump manufacturing companies for recommendations for a pump to replace the diaphragm pumps now used in the soup make-up system at the Homogeneous Reactor Project installation. the pumping requirements are 2 gallons per minute at a discharge pressure of 1000 psi with intake at atmospheric conditions. If shaft seals are used, they must be leakproof for long periods of time and possess goo… more
Date: June 23, 1952
Creator: Welch, J. M. & Angel, C. W.
Partner: UNT Libraries Government Documents Department
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Flight Measurements at Mach Numbers From 1.1 to 1.9 of the Zero-Lift Drag of a Twin-Engine Supersonic Ram-Jet Configuration

Description: Report presenting a flight investigation to determine the zero-lift drag characteristics of a twin-engine supersonic ramjet configuration in order to make performance calculations below the design Mach number. Data was obtained over a range of Mach numbers for two power-off ramjet models with and without nacelles. Information about the variation of Reynolds number, total and external drag coefficients, and model-component drag coefficients is provided.
Date: June 23, 1952
Creator: Leiss, Abraham
Partner: UNT Libraries Government Documents Department
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Investigation of engine performance and high-temperature properties of precision-cast turbine blades of high carbon Stellite 21 and controlled grain-size-Stellite 21

Description: Report presenting an investigation to determine the effect of controlled grain size and increased carbon content on engine performance and high-temperature properties of precision-cast Stellite 21 turbine blades. Results regarding blade stresses, engine operation, and metallurgical examination are provided.
Date: June 23, 1952
Creator: Yaker, Charles; Garrett, Floyd B. & Sikora, Paul F.
Partner: UNT Libraries Government Documents Department
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Small-Scale Transonic Investigation of the Effects of Partial-Span Leading-Edge Camber on the Aerodynamic Characteristics of a 50 Degree 38' Sweptback Wing of Aspect Ratio 2.98

Description: "A small-scale transonic investigation of two semispan wings of the same plan form was made in the Langley high-speed 7- by 10-foot tunnel through a Mach number range of 0.70 to 1.10 and a mean-test Reynolds number range of 745,000 to 845,000 to determine the effects of partial-span leading-edge camber on the aerodynamic characteristics of a swept-back wing. This paper presents the results of the investigation of wing-alone and wing-fuselage configurations of the two wings; one, was an uncamber… more
Date: June 23, 1952
Creator: Alford, William J., Jr. & Byrnes, Andrew L., Jr.
Partner: UNT Libraries Government Documents Department
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Caustic Treatment of Zircon in the Preparation of Pure Zirconium Compounds

Description: From abstract: This investigation was conducted in order to develop a process whereby the most abundant zirconium ore, namely zircon, could economically be put into solution and purified adequately for use in hafnium separation processes employing liquid-liquid extraction. Secondary aims concerned the preparation of pure zirconyl chloride, zirconyl nitrate, zirconyl sulfate, and zirconium oxide from the zircon ore.
Date: June 23, 1953
Creator: Spink, Donald R. & Wilhelm, Harley A.
Partner: UNT Libraries Government Documents Department
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Experimental investigation of physical and combustion properties of several residual fuel oils and magnesium - fuel-oil slurries in a ram-jet-type combustor

Description: Report presenting an experimental investigation using a 1 7/8-inch diameter burner to determine the suitability of residual fuel oils as carriers in magnesium slurries. Four residual fuel oils with varying viscosities were investigated by themselves and in slurries of 50 percent magnesium. Results regarding the settling characteristics, blow-out velocity, and combustion efficiency are provided.
Date: June 23, 1953
Creator: Cook, Preston N., Jr.; Evans, Vernida E. & Lezberg, Erwin A.
Partner: UNT Libraries Government Documents Department
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Internal performance characteristics of variable-throat plug- and vaned-type convergent-divergent nozzles

Description: Investigation of the internal performance characteristics of three types of variable-throat convergent-divergent nozzles over a wide range of pressure ratios. Only small differences in peak thrust coefficient between the three types of variable-throat convergent-divergent nozzles were obtained.
Date: June 23, 1953
Creator: Krull, H. George; Steffen, Fred W. & Ciepluch, Carl C.
Partner: UNT Libraries Government Documents Department
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