Technical Report Archive & Image Library (TRAIL) - 32,762 Matching Results

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Determination of Ruthenium in Plutonium

Description: An analytical procedure for 0.04 to 1.6 percent ruthenium in plutonium metal was developed. Determination of ruthenium in metallic plutonium was investigated as part of a program for securing analytical procedures for various metals in plutonium. However, results of the investigation are given in this report with emphasis on the determination of ruthenium in plutonium chloride solutions. Specifically, this report is primarily concerned with the separation and determination of 40 to 400 microgra… more
Date: March 1956
Creator: Bergstresser, K. S. (Karl Samuel), 1909-2004
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Duck Production Studies on the Prairie Potholes of South Dakota

Description: From introduction: "Determine the extent, distribution, and numbers of small water areas formerly and now present in the prairie pothole region of the Dakotas and Minnesota; to determine their importance to wildlife, the factors bringing about their disappearance, and to develop, if possible, methods for their preservation, if that appears warranted."
Date: March 1956
Creator: Evans, Charles D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Effect of Carriage Mass Upon the Loads and Motions of a Prismatic Body During Hydrodynamic Impact

Description: Note presenting a theoretical derivation for the effect of a towing-carriage mass upon the general equations of motion for a prismatic body during a hydrodynamic impact. The equations can be used at any stage of the impact to determine the resulting loads and motions of the body, including the effect of a carriage mass. Results regarding a nonimmersed chine and an immersed chine are provided.
Date: March 1956
Creator: Markey, Melvin F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Effect of leading-edge geometry on boundary-layer transition at Mach 3.1

Description: Report presenting the effect of leading-edge geometry on transition position, recovery-factor distribution, boundary-layer profile, and the roughness required to induce transition at Mach number 3.1 for a hollow cylinder aligned with the air stream. Results regarding leading-edge effect, roughness elements in laminary boundary layer, surface-heat condition effects, and effect of stream total temperature are provided.
Date: March 1956
Creator: Brinich, Paul F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Effect of thickness, camber, and thickness distribution on airfoil characteristics at Mach numbers up to 1.0

Description: Report presenting tests of a group of related NACA airfoil sections varying in maximum thickness, design lift coefficient, and thickness distribution in a two-dimensional open-throat wind tunnel at a range of Mach numbers. Normal-force, drag, and pitching-moment coefficients are presented with representative schileren photographs and pressure-distribution diagrams.
Date: March 1956
Creator: Daley, Bernard N. & Dick, Richard S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Effects of Preferred Orientation and Grain Size On Dimensional Stability of Uranium on Thermal Cycling and Irradiation : Final Report -- Metallurgy Program 5.1.7

Description: The growth of alpha-rolled uranium rods on thermal cycling has been shown to depend on both preferred orientation and grain size. Preferred orientation appears to be a necessary condition for growth to occur; the extent of the growth depends upon the sharpness and type of texture developed and on the grain size. The highest growth rates occur in specimens with highly developed textures coupled with small grain sizes. The growth rates increase with cycling level, particularly in specimens of lar… more
Date: March 1956
Creator: Chiswik, H. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Estimate of Known Recoverable Reserves and Preparation Characteristics of Coking Coal in Van Buren County, Tennessee

Description: Report issued by the Bureau of Mines over investigations of Coking Coal reserves of Van Buren County, Tennessee. Testing to determine suitability for producing metallurgical coke is also presented. This report includes tables, maps, and illustrations.
Date: March 1956
Creator: Hershey, Robert E.; Williams, Lloyd; Crentz, William L. & Miller, J. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Evaluation of Biological Hazards from Ruthenium Particulates: I. Studies of Percutaneous Absorption, Gastrointestinal Absorption, and Gastrointestinal Holdup

Description: Studies are described of the percutaneous absorption and gastrointestinal absorption in the rat of ruthenium administered in the form of "insoluble particulates." Results are also reported on the gastrointestinal holdup of these particulates.
Date: March 1, 1956
Creator: Thompson, R. C.; Hollis, O. L. & Oakley, W. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Experimental investigation of the flow around lifting symmetrical double-wedge airfoils at Mach numbers of 1.30 and 1.41

Description: Report presenting measurements made of the flow around a 10-percent-thick, double symmetrical, two-dimensional wedge at Mach number 1.30 and a 14.2-percent-thick wedge at two Mach numbers for various angles of attack. Pressure and Mach number distributions, lift and drag coefficients, center of lift, and pitching moment are presented.
Date: March 1956
Creator: Gooderum, Paul B. & Wood, George P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A Flat Wing With Sharp Edges in a Supersonic Stream

Description: A basic treatment is given for the approximate solution of the problem of two-dimensional supersonic flow past a thin wing at small angles of attack. The pressure distribution at the surface, the lifting force, and the wave drag are determined.
Date: March 1956
Creator: Donov, A. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Formation of a Vortex at the Edge of a Plate

Description: The flow about the plate of infinite width may be represented as a potential flow with discontinuity surfaces which extend from the plate edges. On the basis of a similitude requirement one succeeds in finding a solution of this problem for the plate of infinite width which is correct for the very beginning of the motion of the fluid. Starting from this solution, the further development of the vortex distribution and shape of the surface are observed in the case of a plate of finite width.
Date: March 1956
Creator: Anton, Leo
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Generalized Tables of Corrections to Thermodynamic Properties for Nonpolar Gases

Description: Note presenting tables based on the Lennard-Jones 6-12 potential for nonpolar molecules to be used in the representation of second and third virial coefficients and equation-of-state corrections for enthalpy, entropy, specific heats at constant volume and at constant pressure, the ratio of specific heats, the isentropic expansion coefficient, and the velocity of sound.
Date: March 1956
Creator: Woolley, Harold W. & Benedict, William S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Geologic Features of Areas of Abnormal Radioactivity South of Ocala, Marion County, Florida

Description: From abstract: Areas of abnormal radioactivity south of Ocala, Marion County, Fla., discovered in 1953 by aerial survey, were investigated by surface examination and by 10 power auger drill holes. Interbedded clay, clayey sand, and uraniferous phosphorite occur in the areas of anomalous radioactivity. Miocene fossils occur at three localities in these beds which are evidently outliers of Miocene sediments on the Ocala limestone of Eocene age. The preserved outliers are southwest of the main bel… more
Date: March 1956
Creator: Espenshade, Gilbert H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Heat Capacity Lag of Gaseous Mixtures

Description: Note presenting the measurement of relaxation times for the excitation of molecular vibrations in a number of heavy gases using an acoustic interferometer. All of the gases studied were found to have a single relaxation time, indicating that intermodal coupling in these gases is strong.
Date: March 1956
Creator: Rossing, Thomas D.; Amme, Robert C. & Legvold, Sam
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Hovering-flight tests of a model of a transport vertical-take-off airplane with tilting wing and propellers

Description: Report presenting an investigation of the take-off, landing, and hovering-flight characteristics of a four-engine transport vertical-take-off airplane with tilting wing and propellers using a remotely controlled free-flight model. The model had four propellers distributed along the wing with the thrust axes in the wing-chord plane.
Date: March 1956
Creator: Lovell, Powell M., Jr. & Parlett, Lysle P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Interim report on exploration in the western part of the Disappointment Valley area, Slick Rock district, San Miguel County, Colorado

Description: This report summarizes the general geology of the Slick Rock mining district and the results of drilling done by the U.S. Geological Survey during 1955.
Date: March 1956
Creator: Simmons, George Clarke; Shawe, Daniel R. & Rogers, William B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Interim Report on Fatigue Characteristics of a Typical Metal Wing

Description: Constant amplitude fatigue tests of seventy-two P-51D "Mustang" wings are reported. The tests were performed by a vibrational loading system and by an hydraulic loading device for conditions with and without varying amounts of pre-load. The results indicate that: (a) the frequency of occurrence of fatigue at any one location is related to the range of the loads applied, (b) the rate of propagation of visible cracks is more or less constant for a large portion of the life of the specimen, and (c… more
Date: March 1956
Creator: Kepert, J. L. & Payne, A. O.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Investigation of the effects of ground proximity and propeller position on the effectiveness of a wing with large-chord slotted flaps in redirecting propeller slipstreams downward for vertical take-off

Description: Report presenting an investigation of the effects of ground proximity and propeller position on the effectiveness of a wing equipped with large-chord slotted flaps in redirecting the slipstreams from large-diameter propellers downward for vertical take-off. Results regarding the characteristics of basic configuration in the ground-effect region, effect of propeller position, comparison of characteristics of one- and two-propeller models, characteristics of modified configuration, and effect of … more
Date: March 1956
Creator: Kuhn, Richard E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Investigation of the Use of the Thermal Decomposition of Nitrous Oxide to Produce Hypersonic Flow of a Gas Closely Resembling Air

Description: Report presenting an investigation of a method for producing hypersonic flow in a wind tunnel by using the hot gaseous products obtained from the thermal decomposition of nitrous oxide. Testing was conducted at a variety of temperatures and pressures.
Date: March 1956
Creator: Sabol, Alexander P. & Evans, John S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Laboratory Study of High-Grade Uranium-Bearing Lignite From Harding County, South Dakota

Description: Report discussing a study of uraniferous lignite collected from three coal beds from Harding County, South Dakota. The report contains information regarding the location and geologic setting of the coal, the materials studies, coal petrologic studies, and a discussion of results.
Date: March 1956
Creator: Schopf, James M. & Gray, Ralph J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Linearized Lifting-Surface and Lifting-Line Evaluations of Sidewash Behind Rolling Triangular Wings at Supersonic Speeds

Description: Note presenting the lifting-surface sidewash behind rolling triangular wings for a range of supersonic Mach numbers for which the wing leading edges remain swept behind the Mach cone emanating from the wing apex. Variations of the sidewash with longitudinal distance in the vertical plane of symmetry are presented in graphical form.
Date: March 1956
Creator: Bobbitt, Percy J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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