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Airfield Pavement Evaluation: Report Number 8, Ardmore Air Force Base, Ardmore, Oklahoma

Description: Summary: results of flexural strength, CBR, and plate bearing tests, moisture and density determinations, mechanical analysis, and Atterburg limits tests conducted on the pavements, bases, and subgrades of the various landing facilities at this airfield are used in this report to evaluate the load-carrying capacity of the pavements with respect to various landing-gear assemblies and operational-life categories.
Date: January 1956
Creator: Waterways Experiment Station (U.S.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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An analysis of the stability and ultimate compressive strength of short sheet-stringer panels with special reference to the influence of the riveted connection between sheet and stringer

Description: A method of strength analysis of short sheet-stringer panels subjected to compression is presented which takes into account the effect that the riveted attachments between the plate and the stiffeners have on the strength of panels. An analysis of experimental data shows that panel strength is highly influenced by rivet pitch, diameter, and location and that the degree of influence for a given riveting depends on the panel configuration and panel material.
Date: 1956
Creator: Semonian, Joseph W. & Peterson, James P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Bibliography of Bureau of Mines Health and Safety Publications: January 1947-June 1955

Description: From Introduction: "While the basic purpose of this bulletin is to describe health and safety reports for the period January 1947 through 1955, a selected number of earlier publications that are believed pertinent for reference purposes are included."
Date: 1956
Creator: Humphrey, H. B. & Stratton, Hazel J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Birth and Development of Parícutin Volcano, Mexico

Description: From introduction: In this report the authors have attempted to present a strictly factual account of the birth and development of Paricutin volcano and avoid any interpretive opinions that might break the true narrative of events.
Date: 1956
Creator: Foshag, William F. & González Reyna, Jenaro
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Cloud-droplet ingestion in engine inlets with inlet velocity ratios of 1.0 and 0.7

Description: Report presenting the paths of cloud droplets into two engine inlets for a wide range of meteorological and flight conditions. The amount of water in droplet form ingested by the inlets and the amount and distribution of water impinging on the inlet walls is obtained from droplet-trajectory configurations. Results regarding an inlet with velocity ratio of 1.0 and a ratio of 0.7 are provided.
Date: January 1956
Creator: Brun, Rinaldo J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Compressive Crippling of Structural Sections

Description: "A method is presented for calculating crippling stresses of structural sections as a function of material properties and the proportions of the section. The presence of formed or anisotropic material is accounted for by the use of an effective stress-strain curve. The method of analysis applies to many sections for which a procedure for calculating crippling was not previously available" (p. 1).
Date: January 1956
Creator: Anderson, Melvin S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Correlation of Crippling Strength of Plate Structures With Material Properties

Description: "A correlation approach to the crippling-strength analysis of plate structures in new materials and at elevated temperatures is presented. Appropriately defined crippling-strength moduli and correlation procedures are given for predicting the effect of a change in material properties on the strength of a structure. The strength moduli are readily calculated from the effective compressive stress-strain curve for the structural material" (p. 1).
Date: January 1956
Creator: Anderson, Roger A. & Anderson, Melvin S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Corrosion Characteristics of Uranium : An Electron Diffraction Study

Description: Abstract: "The initial product formed on relatively oxide-free uranium has been shown by electron diffraction to be the alpha or low temperature form of uranium hydride. Such as oxide-free surface has been prepared by polishing the metal within the electron diffraction unit while maintaining a vacuum of 10^-7 mm Hg. Uranium dioxide lines appear later and grow in intensity. Electron diffraction studies are reported on vacuum annealed metal."
Date: 1956
Creator: Waber, James T. & Whyte, Dawn D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Critical Masses of Mildly Diluted U²³⁵ Systems Derived from Reactivity Contribution Data

Description: Abstract: "Radioactivity contribution data, obtained from U²³⁵ critical assemblies at Pajerito can be used to predict the effects of diluents on critical mass. The radioactivity contribution data versus radius for diluents in a given assembly may be expressed as a single functional relationship between integral absorption and transport cross sections of the diluents. Using this relation, there can be obtained a general expression for the dependence of critical mass upon volume fraction and the … more
Date: 1956
Creator: Engle, Leon B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Design Criteria for Axisymmetric and Two-Dimensional Supersonic Inlets and Exits

Description: Report presenting design charts for single- and double-oblique-shock inlets and isentropic axisymmetric and two-dimensional surfaces with theoretically focused Mach lines for Mach numbers up to 4.0. The requirement of internally and externally attached shocks at the cowl lip is also considered.
Date: January 1956
Creator: Connors, James F. & Meyer, Rudolph C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Detection of Short Circuits in Thermocouples by a Radio-Frequency Measurement of Inductance

Description: Abstract: "The development of a portable battery-operated instrument capable of detecting a short-circuit four or more inches from the hot junction of a five-foot-long thermocouple is described. The accuracy of measurement is inversely proportional to the length of the thermocouple and is not affected by changes in thermocouple temperature. A signal having a wave length much greater than the electrical length of the thermocouple is used to measure thermocouple inductance. The instrument consist… more
Date: 1956
Creator: Morris, Peter R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Determination of Thorium in the Presence of Uranium, Titanium and Tungsten

Description: Abstract: "Thorium is separated from uranium, titanium and tungsten by precipitation as fluoride. The precipitate is ignited to oxide, dissolved in nitric acid, evaporated with perchloric acid, neutralized to a pH between 2.0 and 2.5 and titrated with the disodium salt of ethylene-ddiamine tetrascetic acid, using Eriochrome Cyanide as indicator. If less than 30 milligrams of thorium is present, lanthanum is added as a carrier."
Date: 1956
Creator: Willard, Hobart H.; Mosen, Arthur. W. & Gardner, Ross D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Directional Stability of Towed Airplanes

Description: "So far, very careful investigations have been made regarding the flight properties, in particular the static and dynamic stability, of engine-propelled aircraft and of untowed gliders. In contrast, almost no investigations exist regarding the stability of airplanes towed by a towline. Thus, the following report will aim at investigating the directional stability of the towed airplane and, particularly, at determining what parameters of the flight attitude and what configuration properties affe… more
Date: January 1956
Creator: Söhne, W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Distribution of Uranium in the Bisbee District, Cochise County, Arizona

Description: Report discussing a reconnaissance study performed in September and October 1954 of the Bisbee district in Cochise County, Arizona. The purpose of the study was to determine the area's suitability for a detailed study of the relation between uranium and hypogene mineral zoning.
Date: January 1956
Creator: Wallace, Stewart Raynor
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Effect of climb technique on jet-transport noise

Description: From Summary: "A theoretical investigation of jet-transport climb technique was made to determine the effect of variations in engine thrust and airspeed on sound-pressure levels heard by a ground observer. Reducing either thrust or climb airspeed results in reduced sound-pressure levels. Reducing thrust decreases the sound power radiated; decreasing climb airspeed permits the initiation of climb sooner and hence results in increasing the source to observer distance."
Date: January 1956
Creator: North, Warren J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Effects of Chemical Impurities on the Quality of Rolled Uranium Rod

Description: Abstract: "The effects of nitrogen, slag, and hydrogen additions on the surface quality of rolled uranium rod were studied. The addition of 400 ppm of nitrogen resulted in severe striations. Slag inclusions elongated during rolling and produced short open seams in the etched surface. The effects of 9 to 10 ppm of hydrogen were obscured by defects in the original costings. These defects were caused by oxide films entrapped in the ingot."
Date: 1956
Creator: Saller, Henry A.; Keeler, John R. & Cuddy, Lee J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Estimated Critical Masses of Diluted Oralloy

Description: The following report describes a modification of Hensen's simple formula for critical masses of partially moderated oralloy assemblies that has been used for a survey of bare spheres of nonhydrogenous diluted oralloy.
Date: 1956
Creator: Paxton, Hugh Campbell
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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