Resource Type
Serial/Series Title
NACA Research Memorandums
181
Atomic Energy Commission Reports
53
Hanford Works Reports
28
NACA Technical Reports
22
HW (Series)
20
University of California Radiation Laboratory Reports
19
Oak Ridge National Laboratory Reports
18
ORNL (Series)
11
UCRL (Series)
8
AEC research and development report
7
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Revision of American Voles of the Genus Microtus
From introduction: "Synopsis of American voles based on a study of between 5,000 and 6,000 specimens from more than 800 localities."
Date:
June 6, 1900
Creator:
Bailey, Vernon
Object Type:
Report
System:
The UNT Digital Library
Results of a Biological Reconnaissance of the Yukon River Region
Brief summary of the Yukon River region, including itinerary of expedition, faunal districts, new species identified, and mammals and birds present.
Date:
October 6, 1900
Creator:
Osgood, Wilfred H. & Bishop, Louis B.
Object Type:
Report
System:
The UNT Digital Library
Strength of Welded Joints in Tubular Members for Aircraft
"The object of this investigation is to make available to the aircraft industry authoritative information on the strength, weight, and cost of a number of types of welded joints. This information will, also, assist the aeronautics branch in its work of licensing planes by providing data from which the strength of a given joint may be estimated. As very little material on the strength of aircraft welds has been published, it is believed that such tests made by a disinterested governmental laboratory should be of considerable value to the aircraft industry" (p. 323).
Date:
February 6, 1930
Creator:
Whittemore, H. L. & Brueggeman, W. C.
Object Type:
Report
System:
The UNT Digital Library
Hydraulics of Fuel-Injection Pumps for Compression-Ignition Engines
"Formulas are derived for computing the instantaneous pressures delivered by a fuel pump. The first derivation considers the compressibility of the fuel and the second, the compressibility, elasticity, and inertia of the fuel. The second derivation follows that given by Sass; it is shown to be the more accurate of the two. Additional formulas are given for determining the resistance losses in the injection tube" (p. 621).
Date:
March 6, 1931
Creator:
Rothrock, A. M.
Object Type:
Report
System:
The UNT Digital Library
Zinc and its alloys
A report on zinc and its alloys.
Date:
November 6, 1931
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Zinc and Its Alloys
Report issued by the Bureau of Standards discussing world production of zinc and zinc alloys. History, metallurgy, and structural properties of zinc are presented. This report includes tables, illustrations, and photographs.
Date:
November 6, 1931
Creator:
United States. Bureau of Standards.
Object Type:
Report
System:
The UNT Digital Library
The Mechanism of Atomization Accompanying Solid Injection
"A brief historical and descriptive account of solid injection is followed by a detailed review of the available theoretical and experimental data that seem to throw light on the mechanism of this form of atomization. It is concluded that this evidence indicates that (1) the atomization accompanying solid injection occurs at the surface of the liquid after it issues as a solid stream from the orifice; and (2) that such atomization has a mechanism physically identical with the atomization which takes place in an air stream, both being due merely to the formation, at the gas-liquid interface, of fine ligaments under the influence of the relative motion of gas and liquid, and to their collapse, under the influence of surface tension, to form the drops in the spray" (p. 735).
Date:
January 6, 1932
Creator:
Castleman, R. A., Jr.
Object Type:
Report
System:
The UNT Digital Library
Force measurements on a 1/40-scale model of the U. S. Airship "Akron"
This report describes a series of tests made on a 1/40-scale model of the U. S. Airship "Akron" (ZRS-4) for the purpose of determining the drag, lift, and pitching moments of the bare hull and of the hull equipped with two different sets of fins. Measurements were also made of the elevator forces and hinge moments.
Date:
May 6, 1932
Creator:
Freeman, Hugh B.
Object Type:
Report
System:
The UNT Digital Library
A photographic study of combustion and knock in a spark-ignition engine
Report presents the results of a photographic study of the combustion in a spark-ignition engine using both Schlieren and flame photographs taken at high rates of speed. Although shock waves are present after knock occurs, there was no evidence of any type of sonic or supersonic compression waves existing in the combustion gases prior to the occurrence of knock. Artificially induced shock waves in the engine did not in themselves cause knock.
Date:
December 6, 1937
Creator:
Rothrock, A. M. & Spencer, R. C.
Object Type:
Report
System:
The UNT Digital Library
The Compressibility Burble and the Effect of Compressibility on Pressures and Forces Acting on an Airfoil
"Simultaneous air-flow photographs and pressure-distribution measurements were made of the NACA 4412 airfoil at high speeds to determine the physical nature of the compressibility burble. The tests were conducted in the NACA 24-inch high-speed wind tunnel. The flow photographs were obtained by the Schlieren method and the pressures were simultaneously measured for 54 stations in the 5-inch-chord airfoil by means of a multiple-tube manometer. Following the general program, a few measurements of total-pressure loss in the wake of the airfoil at high speeds were made to illustrate the magnitude of the losses involved and the extent of the disturbed region; and, finally, in order to relate this work to earlier force-test data, a force test of a 5-inch-chord NACA 4412 airfoil was made" (p. 73).
Date:
July 6, 1938
Creator:
Stack, John; Lindsey, W. F. & Littell, Robert E.
Object Type:
Report
System:
The UNT Digital Library
Air Flow in the Boundary Layer of an Elliptic Cylinder
From Introduction: "The present investigation was carried out for the purpose of supplementing the earlier work with information on the boundary layer under such conditions of air speed and turbulence that transition occurs and the layer is partly laminar and partly turbulent. In the work reported in reference 1, the air speed was about 12 feet per second, and it was assumed that the boundary layer remained in the laminar condition until after separation because the separation point remained fixed and the pressure distribution about the cylinder was unaffected until an air speed of 15 feet per second was reached."
Date:
August 6, 1938
Creator:
Schubauer, G. B.
Object Type:
Report
System:
The UNT Digital Library
Determination of the Profile Drag of an Airplane Wing in Flight at High Reynolds Numbers
"Flight tests were made to determine the profile-drag coefficients of a portion of the original wing surface of an all-metal airplane and of a portion of the wing made aerodynamically smooth and more nearly fair than the original section. The wing section was approximately the NACA 2414.5. The tests were carried out over a range of airplane speeds giving a maximum Reynolds number of 15,000,000. Tests were also carried out to locate the point of transition from laminar to turbulent boundary layer and to determine the velocity distribution along the upper surface of the wing" (p. 483).
Date:
January 6, 1939
Creator:
Bicknell, Joseph
Object Type:
Report
System:
The UNT Digital Library
Piston temperatures in an air-cooled engine for various operating conditions
As part of a program for the study of piston cooling, this report presents the results of tests conducted on a single-cylinder, air-cooled, carburetor engine to determine the effect of engine operating conditions on the temperatures at five locations on the piston.
Date:
April 6, 1940
Creator:
Manganiello, Eugene J.
Object Type:
Report
System:
The UNT Digital Library
Capture Cross Section of Si for Thermal Neutrons
The following report analyzes different values and measurements that give the same results for the captured cross section of thermal neutrons for Si.
Date:
May 6, 1942
Creator:
Coon, J. H.
Object Type:
Report
System:
The UNT Digital Library
The Diffusion Length and the Utilization of Thermal Neutrons in a Heterogeneous Pile
Abstract: "An accurate calculation is given for the quantity which corresponds to the diffusion length in the theory of the pile. The procedure is to establish a relationship between the diffusion length and the change in thermal utilization from a pile with infinite sides to one with sides of a finite length. The calculation of this change in the thermal utilization is then carried through. Approximation to the answer and numerically exact calculations are given in the report. The results show that for radif very near the optimum values the exact diffusion length is slightly larger than the one obtained from the usual formula...However, over most of the range of radii the exact diffusion length is smaller than the approximate one."
Date:
October 6, 1943
Creator:
Plass, Gilbert N.
Object Type:
Report
System:
The UNT Digital Library
Report No. EC-2, Dated from March 24, 1943 to November 5, 1943, Contained in the Engineer's Log Book
This technical report consists of day by day experimental data reported in Engineer's Log book, Electro-Chemistry Department, supporting Report No. EC-11 dated November 15, 1944, by W. L. Grube, Research Laboratories Division, General Motors Corporation.
Date:
November 6, 1943
Creator:
Grube, William L.
Object Type:
Report
System:
The UNT Digital Library
The Effect of Radiation on the Corrosion of Metals by Water
Technical report. Long-time tests have been made on the effect of various types of radiation on the corrosion of 2S aluminum in simulated W water. In no case was any acceleration of corrosion by the radiation observed; the effect of radiation, if any, appeared to be a protective one. Deuteron irradiation did accelerate the corrosion of mild steel at low flow rates in hot water of pH 6 to 7, but no appreciable effect was observed with copper, stainless steel, or tuballoy. The general theory of the effect of radiation on corrosion is discussed, with the conclusion that no acceleration of corrosion by radiation is to be expected in most cases of practical interest.
Date:
July 6, 1944
Creator:
Allen, A. O. (Augustine O.); Bowman, M. C.; Goldowski, Nathalie; Larson, R. G. & Treiman, L.
Object Type:
Report
System:
The UNT Digital Library
Computed Values of X-Ray Lines and Limits for the Trans-Uranic Elements
Report detailing values of x-ray lives and limits for trans-uranic elements. Formulas and methods are detailed throughout the report.
Date:
September 6, 1944
Creator:
Monk, Ardis T. & Allison, Samuel King
Object Type:
Report
System:
The UNT Digital Library
Measurement of Flying Qualities of a Douglas A-26B Airplane (AAF No. 41-39120) 1: Longitudinal Stability and Control Characteristics
Report discussing testing of the Douglas A-26B to determine the longitudinal stability and control characteristics. Information about the elevator, stick-fixed and stick-free stability, center of gravity, and flap effects are described.
Date:
December 6, 1944
Creator:
Crane, H. L.; Sjoberg, S. A. & Hoover, H. H.
Object Type:
Report
System:
The UNT Digital Library
Factors Affecting the Precipitation of Tubanyl Peroxide from Gunk Solutions at Reduced Temperatures
The following report presents data from the investigations on discovering factors affecting the precipitation of tubanyl peroxide from Alpha and Beta gunk solutions at reduced temperatures.
Date:
March 6, 1945
Creator:
Brown, K. B.; Swanson, D. M.; Wagner, E. L. & Miller, A. J.
Object Type:
Report
System:
The UNT Digital Library
The Precipitation of Lanthanum from Solution in the Presence of Radiation
Abstract. In order to anticipate radiation - chemical effects in solutions of active lanthanum, various solutions and suspensions containing lanthanum were irradiated with an electron beam. Separation of lanthanum from barium by the alcoholic HCl method is not rendered less efficient by radiation, although considerable gas evolution occurs. Suspensions of lanthanum as hydroxide and as ferrocyanide are not appreciably solubilized by radiation. Lanthanum oxalate is decomposed by radiation, is partially thrown into solution, and finally dissolves completely when all the excess oxalate ion in the solution has been destroyed.
Date:
April 6, 1945
Creator:
Penneman, R. A. (Robert Allen), 1919-; Ghormley, J. A.; Gordon, S.; Leaf, B. & Allen, A. O. (Augustine O.)
Object Type:
Report
System:
The UNT Digital Library
Theory of Oscillating Absorber in a Chain Reacting Pile
Abstract. the fluctuation in pile intensity caused by an oscillating point absorber is calculation. It is found that the nature of the response depends on the frequency of the impressed oscillation. If the frequency is high compared to the decay rate of the high harmonics, the response consists of a wave which is propagated away from the oscillator. If the frequency is low, the propagated wave character of the response disappears and the intensity of the whole pile tends to oscillate with the same phase. The amplitude of the response decreases with increasing frequency.
Date:
April 6, 1945
Creator:
Cahn, Albert S., Jr.; Monk, A. T. & Weinberg, Alvin Martin, 1915-2006
Object Type:
Report
System:
The UNT Digital Library
Effect of Mach and Reynolds Numbers on the Maximum Lift Coefficient Obtainable in Gradual and Abrupt Stalls of a Pursuit Airplane Equipped With a Low-Drag Wing
Report discussing flight tests on a low-drag wing pursuit airplane to determine the effects of Mach and Reynolds numbers on the maximum lift coefficient obtainable in gradual and abrupt stalls. The obtainable maximum lift coefficient was found to be greatly affected by the Mach and Reynolds numbers in gradual stall. In abrupt stalls, the maximum lift coefficient was affected by the Mach number, but not the Reynolds number.
Date:
July 6, 1945
Creator:
Spreiter, John R.; Galster, George M. & Blair, William K.
Object Type:
Report
System:
The UNT Digital Library
Knock-Limited Performance of Blends of AN-F-28 Fuel Containing 2 Percent Aromatic Amines 5
Report discussing testing of 2-percent additions of seven aromatic amines on the knock-limited performance of 28-R fuel in a CFR engine. The most effective antiknock additives are described.
Date:
August 6, 1945
Creator:
Alquist, Henry & Tower, Leonard K.
Object Type:
Report
System:
The UNT Digital Library