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Analysis of heat addition in a convergent-divergent nozzle

Description: From Introduction: "The purpose of this report is to treat analytically heat addition heat addition to a divergent stream with initially sonic flow and to employ the results thus obtained in evaluating the effect of delayed combustion on convergent-divergent nozzle performance."
Date: April 1953
Creator: Hearth, Donald P. & Perchonok, Eugene
Partner: UNT Libraries Government Documents Department
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The Angular Distribution of the Reaction p + p--d + w+ at 338 Mev

Description: The angular distribution of the reaction p + p--w+ + d has been measured with the meson and deuteron detected in coincidence. Measurements were made at 30' and 90' in the center of mass system for an incident proton energy of 338 Mev. Similar measurements were made at 30', 60' and 90' for 332 Mev protons.
Date: April 1953
Creator: Stevenson, M. Lynn
Partner: UNT Libraries Government Documents Department
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Combustion in the Wake as a Means of Body-Drag Reduction as Determined from Free-Flight Tests of 40-Millimeter Shells

Description: "The results of free-flight drag tests of 40-millimeter shells conducted by the National Advisory Committee for Aeronautics for the Ballistic Research Laboratories, Ordnance Department, U. S. Army, are presented. A drag reduction at supersonic speeds of approximately 20 percent of the projectile's drag was obtained by combustion in the wake of the projectile in flight" (p. 1).
Date: April 1, 1953
Creator: Welsh, Clement J.
Partner: UNT Libraries Government Documents Department
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Comparison of Calculated and Measured Thermal Distortions in a Reactor Control Rod for Temperature Patterns Simulating Two Reactor Operating Conditions

Description: Memorandum presenting the results of a simplified theoretical analysis of the calculated distortion of a stainless-steel-clad silver-cadmium control rod under the influence of several temperature patterns, and the results are compared with the measured distortions for the same temperature patterns.
Date: April 1953
Creator: Nagey, Tibor F.
Partner: UNT Libraries Government Documents Department
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Critical mass information applied to purex and recuplex design

Description: Some time ago, a series of experiments (the P-11 project) were conducted to determine the critical mass of plutonium in variously sized and shaped vessels and with various solution concentrations. These experiments were rather general in nature, hence, it is necessary to interpret the data to the specific critical mass problems of interest in separation processes. The design of new continuous flow separation processes calls for even further extrapolations of these data to vessel geometries far … more
Date: April 1, 1953
Creator: Lanning, D. D.
Partner: UNT Libraries Government Documents Department
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Effect of Capture on the Slowing-Down Length of Neutrons in Hydrogenous Mixtures Containing Uranium

Description: Memorandum presenting a rigorous expression for the slowing-down length of neutrons in hydrogenous media under the assumption that the nonhydrogen nuclei have infinite mass and that capture is absent. Two expressions have been applied to the same sample mixture, a uranium-235 and water mixture with the ratio of hydrogen to uranium nuclei chosen as 25.
Date: April 1953
Creator: Volkin, H. C. & Soffer, L.
Partner: UNT Libraries Government Documents Department
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Estimate of Known Recoverable Reserves of Coking Coal in Wyoming County, West Virginia

Description: Report issued by the U.S. Bureau of Mines evaluating the reserves of coking coal in Wyoming County, West Virginia. The report also lists properties of coal and coal blends from the area. This report includes maps and tables.
Date: April 1953
Creator: Wallace, Joseph J.; Dowd, James J.; Tavenner, William H.; Provost, John M.; Abernethy, R. F. & Reynolds, D. A.
Partner: UNT Libraries Government Documents Department
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Estimation of Hydrodynamic Impact Loads and Pressure Distributions on Bodies Approximating Elliptical Cylinders With Special Reference to Water Landings of Helicopters

Description: "An approximate method for computing water loads and pressure distributions on lightly loaded elliptical cylinders during oblique water impacts is presented. The method is of special interest for the case of emergency water landings of helicopters. This method makes use of theory developed and checked for landing impacts of seaplanes having bottom cross sections of V and scalloped contours. An illustrative example is given to show typical results obtained from the use of the proposed method of … more
Date: April 1953
Creator: Schnitzer, Emanuel & Hathaway, Melvin E.
Partner: UNT Libraries Government Documents Department
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Experimental investigation of the effect of rear-fuselage shape on ditching behavior

Description: Report presenting an experimental investigation to determine the effect of changes in shape of the rear fuselage of an airplane on ditching behavior. The behavior of the models was recorded with a high-speed camera, the records were analyzed, and the data is presented as curves of speed, attitude, and center-of-gravity height plotted against time.
Date: April 1953
Creator: McBride, Ellis E. & Fisher, Lloyd J.
Partner: UNT Libraries Government Documents Department
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Identification and Occurrence of Uranium and Vanadium Minerals From the Colorado Plateaus

Description: Abstract: "This report, designed to make available to field geologists and others information on identification and occurrence of uranium minerals of the Colorado Plateaus, contains physical properties, X-ray data, and in some instances results of chemical and spectrographic analysis of 24 uranium and 17 vanadium minerals. Also included is a table giving the optical properties of uranium minerals and a list of locations of mines from which the minerals have been identified."
Date: April 1953
Creator: Weeks, A. D. & Thompson, M. E.
Partner: UNT Libraries Government Documents Department
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Interim Report on a Fatigue Investigation of a Full-Scale Transport Aircraft Wing Structure

Description: Note presenting results of an investigation of the fatigue strength of several full-scale aircraft wing structures. The 34 fatigue failures which resulted from the tests were of four main types and occurred in three principal localities on the test wings. Results regarding the definition of fatigue failure, load history of specimens, description of fatigue failures, spread in fatigue life, stress concentration factors, rate of crack growth, and effect of fatigue damage on natural frequency and … more
Date: April 1953
Creator: McGuigan, M. James, Jr.
Partner: UNT Libraries Government Documents Department
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METALLURGY DIVISION QUARTERLY PROGRESS REPORT FOR PERIOD ENDING JANUARY 31, 1953

Description: A study was made of the effect of the addition of V aad Si on the properties of Th; corrosion of stainless steel in uranyl sulfate; corrosion, brazing, and welding of stainless steel; properties of Ti; method of combining deuterium and O for return to the reactor; spot welding of fuel elements; fabrication of reactor fuel elements; mechanical testing of U, Th, and stainless steel; surface rearrangements on a single crystal of Cu in contact with a saturated solution of Cu in Bi; development of c… more
Date: April 1, 1953
Creator: Bridges, W.H. ed.
Partner: UNT Libraries Government Documents Department
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A Method for Determining Cloud-Droplet Impingement on Swept Wings

Description: From Summary: "The general effect of wing sweep on cloud-droplet trajectories about swept wings of high aspect ratio moving at subsonic speeds is discussed. A method of computing droplet trajectories about yawed cylinders and swept wings is presented, and illustrative droplet trajectories are computed. A method of extending two-dimensional calculations of droplet impingement on nonswept wings to swept wings is presented."
Date: April 1953
Creator: Dorsch, Robert G. & Brun, Rinaldo J.
Partner: UNT Libraries Government Documents Department
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Non-Overload Amplifiers

Description: Report issued by the Brookhaven National Laboratory discussing non-overload amplifiers, including features, performance, and improvements of amplifiers. This report includes illustrations, and photographs, as well as errata at the end of the report.
Date: April 1, 1953
Creator: Higinbotham, W. A.
Partner: UNT Libraries Government Documents Department
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Optimum controllers for linear closed-loop systems

Description: Report presenting an analysis for optimum controllers of general, linear, time-invariant multiloop systems. General representations of controller characteristics, stable process characteristics, and error relations are used. General solutions are presented for four special cases.
Date: April 1953
Creator: Boksenbom, Aaron S.; Novik, David & Heppler, Herbert
Partner: UNT Libraries Government Documents Department
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Precipitation of plutonium(IV) oxalate in Task I

Description: Laboratory experience on the precipitation of Pu(IV) oxalate is summarized. Filterable Pu(IV) oxalate with a cake density of 0.6 to 0.7 g Pu/cm/sup 3/ cake was precipitated from Redox PR solutions containing 10 to 200 g/l Pu and 2 to 6 M HNO/sub 3/. Filtration ease increased with strike temperature from 35 to 60/sup 0/C. Optimum conditions for pre-reduction of Pu(VI) to (IV), precipitation, digestion, filtration and washing were determined for 60 g/l Pu. Separation factors of 80, 40, 20, and 12… more
Date: April 1, 1953
Creator: Harmon, K. M.
Partner: UNT Libraries Government Documents Department
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Preliminary Reconnaissance Survey for Thorium, Uranium, and Rare-Earth Oxides, Bear Lodge Mountains, Crook County, Wyoming

Description: Report discussing a geological examination that took place in August 1950. During this examination, an area about 6 miles north of Sundance in the Bear Lodge Mountains of Crook County, Wyoming, was examined for thorium, uranium, and rare-earth oxides and samples were collected.
Date: April 1953
Creator: Wilmarth, V. R. & Johnson, D. H.
Partner: UNT Libraries Government Documents Department
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Preliminary reconnaissance survey for thorium, uranium, and rare-earth oxides, Bear Lodge Mountains, Crook County, Wyoming

Description: A report regarding a preliminary reconnaissance survey for thorium, uranium, and rare-earth oxides in the bear lodge mountains, in Crook County, Wyoming. "The purpose of this reconnaissance was to obtain information on the mode of occurrence, extent, and reserves of these deposits. This work was done on behalf of the Division of Raw Materials of the Atomic Energy Commission."
Date: April 1953
Creator: Wilmarth, V. R. & Johnson, Donald H.
Partner: UNT Libraries Government Documents Department
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Preliminary Report on the Mineral Hill Monazite Deposits, Lemhi County, Idaho

Description: From abstract: The Mineral Hill monazite deposits, 3 to 5 miles northeast of the town of Shoup, Lemhi County, Idaho, were investigated by the U. S. Geological Survey in July 1952. The deposits are replacement veins and lenses along shears in a pendant, principally of pre-Cambrian biotite gniess, about 4 to 5 miles in size and enclosed by granite of the Idaho batholith. The veins consist predominantly of calcite, monazite, and allanite, and contain minor quantities of barite, magnetite, rutile, … more
Date: April 1953
Creator: Sharp, W. N. & Cavender, W. S.
Partner: UNT Libraries Government Documents Department
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