Resource Type
Serial/Series Title
NACA Research Memorandums
500
NACA Technical Notes
295
United States Geological Survey Reports
141
Atomic Energy Commission Reports
139
Hanford Works Reports
111
Trace elements investigations report
105
NACA Technical Reports
45
Oak Ridge National Laboratory Reports
40
ORNL (Series)
39
University of California Radiation Laboratory Reports
38
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The Adsorption of He3 and He4 on Activated Charcoal
The adsorption on activated charcoal of pure He3 at 2.5 and 3°K, and of pure He4 at 4°K has been measured. The volume of gas necessary to form a monolayer is approximately the same for the two isotopes. It is shown that capillary condensation does not occur in this adsorbent at low saturations. The data have been analyzed by a number of methods with consistent results.
Date:
1956
Creator:
Hoffman, C. J.; Edeskuty, F. J. & Hammel, Edward F. (Edward Frederick), 1918-
Object Type:
Report
System:
The UNT Digital Library
Aerodynamic Characteristics at Mach Numbers of 1.61 and 2.01 of Various Tip Controls on the Wing Panel of a 0.05-Scale Model of a Martin XASM-N-7 (Bullpup) Missile: TED No. NACA AD 3106
"An investigation has been conducted in the Langley 4- by 4-foot supersonic pressure tunnel to determine the control effectiveness and hinge-moment characteristics of the Martin XASM-N-7 (Bullpup) missile. A half-scale wing panel was tested with a tip control having three different hinge-line locations. The tests were made over an angle-of-attack range from -10 to 10 degrees and a control-deflection range of -15 to 3 degrees" (p. 1).
Date:
1956~
Creator:
Driver, Cornelius
Object Type:
Report
System:
The UNT Digital Library
Air, Precipitation, and Surface Contamination at Certain Localities in New Mexico from Operation Teapot, Spring 1955
The following report describes the findings of air samplings taken that followed the Wasp detonation of Operation Teapot.
Date:
1956
Creator:
Johnson, William S.
Object Type:
Report
System:
The UNT Digital Library
Airfield Pavement Evaluation: Report Number 8, Ardmore Air Force Base, Ardmore, Oklahoma
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.)
Object Type:
Report
System:
The UNT Digital Library
Analyses of Ash from United States Coals
Report summarizing analyses done on ash of coal from the United States.
Date:
1956
Creator:
Selvig, W. A. & Gibson, F. H.
Object Type:
Report
System:
The UNT Digital Library
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
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.
Object Type:
Report
System:
The UNT Digital Library
Annual Report of the National Advisory Committee for Aeronautics (40th). Administrative Report Including Technical Report Nos. 1158-1209
Report includes the National Advisory Committee for Aeronautics letter of submittal to the President, summaries of the committee's activities and research accomplished, bibliographies, and financial report.
Date:
1956
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Argonne National Laboratory Annual Report: 1956
Report issued by the Argonne National Laboratory discussing the variety of work done at the laboratory during the year of 1956. This report includes tables, illustrations, and photographs.
Date:
1956
Creator:
Argonne National Laboratory
Object Type:
Report
System:
The UNT Digital Library
Bibliography of Bureau of Mines Health and Safety Publications: January 1947-June 1955
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.
Object Type:
Report
System:
The UNT Digital Library
Birth and Development of Parícutin Volcano, Mexico
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
Object Type:
Report
System:
The UNT Digital Library
Cloud-droplet ingestion in engine inlets with inlet velocity ratios of 1.0 and 0.7
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.
Object Type:
Report
System:
The UNT Digital Library
Coincident Measurement of the Velocities of Fission Fragments from U²³⁵
The following document describes an investigation that was undertaken to determine the velocities of the fragment pairs formed by slow neutron induced binary fission of U²³⁵.
Date:
1956
Creator:
Stein, William E.
Object Type:
Report
System:
The UNT Digital Library
Compressive Crippling of Structural Sections
"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.
Object Type:
Report
System:
The UNT Digital Library
Contributions to Economic Geology 1955
A report about phosphates found in the Permian Phosphoria formation of the Rocky Mountains. This area constitutes one of the worlds largest reserves of phosphate.
Date:
1956
Creator:
Cressman, Earle R.
Object Type:
Report
System:
The UNT Digital Library
Correlation of Crippling Strength of Plate Structures With Material Properties
"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.
Object Type:
Report
System:
The UNT Digital Library
Corrosion Characteristics of Uranium : An Electron Diffraction Study
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.
Object Type:
Report
System:
The UNT Digital Library
Critical Masses of Mildly Diluted U²³⁵ Systems Derived from Reactivity Contribution Data
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 effective absorption and transport cross sections of the diluent."
Date:
1956
Creator:
Engle, Leon B.
Object Type:
Report
System:
The UNT Digital Library
Design Criteria for Axisymmetric and Two-Dimensional Supersonic Inlets and Exits
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.
Object Type:
Report
System:
The UNT Digital Library
The Detection of Short Circuits in Thermocouples by a Radio-Frequency Measurement of Inductance
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 consists of a radio-frequency ocillator, a bridge, five stages of amplification, and a director. Theoretical considerations are presented in support of a radio-frequency measurement."
Date:
1956
Creator:
Morris, Peter R.
Object Type:
Report
System:
The UNT Digital Library
The Determination of Thorium in the Presence of Uranium, Titanium and Tungsten
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.
Object Type:
Report
System:
The UNT Digital Library
Directional Stability of Towed Airplanes
"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 affect the stability" (p. 1).
Date:
January 1956
Creator:
Söhne, W.
Object Type:
Report
System:
The UNT Digital Library
Dispersion of the Neutron Emission in U235 Fission
The following report discusses experiments made during 1944 to develop the theory for the neutron intensity fluctuations of a water boiler.
Date:
1956
Creator:
Feynman, Richard P.; De Hoffmann, F. & Serber, R.
Object Type:
Report
System:
The UNT Digital Library
Distribution of Uranium in the Bisbee District, Cochise County, Arizona
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
Object Type:
Report
System:
The UNT Digital Library
Effect of climb technique on jet-transport noise
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.
Object Type:
Report
System:
The UNT Digital Library