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Corrosion of Construction Materials in 234-5 Project Solutions

Description: The following report covers the construction materials selected for laboratory corrosion studies and the determination of their corrosion rates in process solutions.
Date: January 31, 1950
Creator: Koenig, W. W.
Partner: UNT Libraries Government Documents Department
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THEORETICAL ESTIMATE OF MAXIMUM POSSIBLE NUCLEAR EXPLOSION

Description: The maximum nuclear accident which could occur in a Na-cooled, Be moderated, Pu and power producing reactor is estimated theoretically. (T.R.H.) 2O82 Results of nuclear calculations for a variety of compositions of fast, heterogeneous, sodium-cooled, U-235-fueled, plutonium- and power-producing reactors are reported. Core compositions typical of plate-, pin-, or wire-type fuel elements and with uranium as metal, alloy, and oxide were considered. These compositions included atom ratios in the following range: U-23B to U-235 from 2 to 8; sodium to U-235 from 1.5 to 12; iron to U-235 from 5 to 18; and vanadium to U-235 from 11 to 33. Calculations were performed to determine the effect of lead and iron reflectors between the core and blanket. Both natural and depleted uranium were evaluated as the blanket fertile material. Reactors were compared on a basis of conversion ratio, specific power, and the product of both. The calculated results are in general agreement with the experimental results from fast reactor assemblies. An analysis of the effect of new cross-section values as they became available is included. (auth)
Date: January 31, 1950
Creator: Bethe, H.A.
Partner: UNT Libraries Government Documents Department
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Experimental investigation of the effectiveness of various suction-slot arrangements as a means for increasing the maximum lift of the NACA 65(sub 3)-018 airfoil section

Description: Report presenting a wind-tunnel investigation to explore the possibility of employing boundary-layer suction slots as a means for delaying laminar separation at the leading edge and turbulent separation over the rear portions of the airfoil section at high lift coefficients. Results regarding lift and drag are explored.
Date: March 31, 1950
Creator: Racisz, Stanley F.
Partner: UNT Libraries Government Documents Department
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Investigation at high subsonic speeds of a 45 sweptback horizontal tail with plain and horn-balanced control surfaces

Description: Report presenting an investigation in the 7- by 10-foot tunnel of the aerodynamic and hinge-moment characteristics of an untapered, aspect ratio 3, semispan horizontal-tail model with 45 degrees of sweepback through a range of Mach numbers. The model was equipped with an unbalanced and a horn-balanced 25-percent-chord elevator.
Date: March 31, 1950
Creator: Johnson, Harold S. & Thompson, Robert F.
Partner: UNT Libraries Government Documents Department
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THE PATH OF OXYGEN IN PHOTOSYNTHESIS

Description: An experiment is described in which an attempt is made to follow the path of oxygen in photosynthesis by the use of O{sup 18} as a tracer.
Date: March 31, 1950
Creator: Dorough, G.D. & Calvin, M.
Partner: UNT Libraries Government Documents Department
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Application of blade cooling to gas turbines

Description: From Summary: "A review of the status of the knowledge on turbine-blade cooling and a description of pertinent NACA investigations are presented. The current limitations in performance of uncooled and cooled engines are briefly discussed. Finally, the knowledge available and investigations to increase the knowledge on heat transfer, cooling-flow, and performance characteristics of cooled turbines are discussed."
Date: May 31, 1950
Creator: Ellerbrock, Herman H., Jr. & Schafer, Louis J., Jr.
Partner: UNT Libraries Government Documents Department
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Effect of Nose Shape and Wing Thickness Ratio on the Drag at Zero Lift of a Missile Having Triangular Wings and Tails

Description: "Free-flight tests have been made to determine the drag at zero lift of several configurations of a missile having triangular wings and tails. Base-pressure measurements were also obtained for some of the configurations. The results show that increasing the wing thickness ratio from 4 to 6 percent increased the wing drag by about 100 percent at M = 1.3 and by about 30 percent at M = 1.8" (p. 1).
Date: May 31, 1950
Creator: Hall, James R. & Sandahl, Carl A.
Partner: UNT Libraries Government Documents Department
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Fission Product Analysis of Urine

Description: A method has been adapted from ion exchange studies for removal of the fission products, Cs-137, Sr-90, and the rare earths for both untreated urine samples and the supernates from the precipitation steps in the TTA procedure for plutonium. Because of the excessive amount of eluant necessary to separate the fission products and the resulting time required to run a separation, a method was developed to remove the Sr-Y, Ce and Pr by chemical means and Cs from the raffinate of this extraction by ion exchange. It should be noted that Cs is easily separated from Pu in the separations plant, and that is presence as a contaminate in the outer areas is not as probable as the other long-lived fission products. This fact has been born out in three years of analyzing contaminated samples from the 200 Area by the H.I. Development Divisions.
Date: May 31, 1950
Creator: Thorburn, R. C.
Partner: UNT Libraries Government Documents Department
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Fission Product Analysis of Urine

Description: The following report describes a chemical procedure to analyze fission products and long-lived rare earths in both untreated urine samples and the supernates from the precipitation steps in the TTA procedure for plutonium.
Date: May 31, 1950
Creator: Thorburn, R. C.
Partner: UNT Libraries Government Documents Department
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Thermal Test Unit

Description: Report discussing a performance evaluation of the Thermal Test Unit, a piece of test equipment fabricated to "aid the Hanford Works in experimentally determining heat transfer characteristics for a particular application."
Date: May 31, 1950
Creator: Cohen, A. & Rede, G. R.
Partner: UNT Libraries Government Documents Department
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THREE NEW DELAYED ALPHA EMITTERS OF LOW MASS

Description: Two new positron active isotopes, B{sup 8} and Na{sup 20}, have been found to decay to excited states of Be{sup 8} and Ne{sup 20}, which in turn decay 'instantaneously' by alpha emission. Their half-lives are 0.65 {+-} 0.1 sec. and 1/4 sec. respectively. N{sup 12} is also found to have a low energy positron group which leads to an {alpha}-unstable excited state in C{sup 12}. The masses of B{sup 8} and Na{sup 20} are 8.027 and 20.015 respectively. B{sup 8} decays by a 13.7 {+-} 0.3 Mev positron, through the same excited state of Be{sup 8} as does Li{sup 8}. Estimates of the energies of the excited state in C{sup 12} and Ne{sup 20} are made.
Date: May 31, 1950
Creator: Alvarez, Luis W.
Partner: UNT Libraries Government Documents Department
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Progress Report on Refining of MgX and Other Uranium-Bearing Materials

Description: From abstract: "Results of two methods of reducing the phosphate and vanadate contents of MgX, a uranium precipitate from the Belgian Congo, are described...Chemical analyses of several samples of pitchblende and MgX are presented."
Date: August 31, 1950
Creator: Ewing, R. A.; Kiehl, S. J., Jr. & Bearse, A. E.
Partner: UNT Libraries Government Documents Department
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The Effect of Electronic Paramagnetism on Nuclear Magnetic Resonance Frequencies in Metals

Description: Observations on the shifts of nuclear resonances in metals (Id {sup 7}, Na {sup 23}, Ou {sup 63}, Be {sup 9}, Fe {sup 207}, A1 {sup 27} and Oa {sup 69}) due to free electron paramagnetism; comparison with theoretical values.
Date: October 31, 1950
Creator: Townes, C. H.; Herring, C. & Knight, W. D.
Partner: UNT Libraries Government Documents Department
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Free-jet performance of 16-inch ram-jet engine with several fuels

Description: Report presenting an investigation of several fuels in a 16-inch ramjet engine during a free-jet investigation of ramjet performance in a wind tunnel. The fuels used were gasoline, kerosene, blend of 50-percent gasoline and 50-percent propylene oxide, blend of 75-percent kerosene and 25-percent propylene oxide, and isopentane. Results regarding ranges of operation, combustion efficiencies, and weight and volume specific fuel consumptions obtained with various fuels.
Date: October 31, 1950
Creator: Wilcox, Fred A.
Partner: UNT Libraries Government Documents Department
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Hyperfine Structure and Exchange Narrowing of Paramagnetic Resonance

Description: Discussion of electronic paramagnetic resonance for the free radical a, a-diphenyl β-picryl hydrazyl as observed by its effect on the transmission of microwaves through a TE {sub 01} cavity with a small amount of the free radical placed approximately on the axis of the cavity; the half-width of this resonance at half maximum absorption was 1.45 oersteds.
Date: October 31, 1950
Creator: Townes, C.H. & Turkevich, J.
Partner: UNT Libraries Government Documents Department
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Investigation of a 1/5-scale model of a proposed high-submerged-speed submarine in the Langley full-scale tunnel

Description: Report presenting the results of an investigation to determine the drag, static stability, control effectiveness, boundary-layer conditions, and first-order effects of propeller operation on a scale model of a proposed high-submerged-speed submarine with various bridge-fairwater and tail configurations.
Date: October 31, 1950
Creator: Lipson, Stanley; Cocke, Bennie W. & Scallion, William I.
Partner: UNT Libraries Government Documents Department
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Nuclear Quadrupole Moments and Nuclear Shell Structure

Description: Describes a simple model, based on nuclear shell considerations, which leads to the proper behavior of known nuclear quadrupole moments, although predictions of the magnitudes of some quadrupole moments are seriously in error.
Date: October 31, 1950
Creator: Townes, C.H.; Foley, H.M. & Low, W.
Partner: UNT Libraries Government Documents Department
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P-10-X design features

Description: This document will be used to record the major equipment items and arrangements for purposes of: guidance of the design effort; and information to be used in the preparation of the project proposal. The purpose of the P-10-X project is to increase production of tritium by adding slug storage, can opening, extraction lines, and shipping facilities. Part 1 describes changes to Building 108-B including process equipment, process handling facilities, contamination control, ventilation, air monitoring and air sampling, electrical services, architecture, and piping. Part 2 describes auxiliary facilities which includes facilities for transfer of fuel slugs to ARCO, storage facilities for fuel slugs, and special devices.
Date: October 31, 1950
Creator: Bowman, F.A.
Partner: UNT Libraries Government Documents Department
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Photoproduction of Mesons from Hydrogen

Description: No Description Available.
Date: October 31, 1950
Creator: Bishop, A. S.; Steinberger, J. & Cook, L. J.
Partner: UNT Libraries Government Documents Department
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