Serial/Series Title
NACA Research Memorandums
414
NACA Technical Notes
343
Atomic Energy Commission Reports
329
NACA Technical Memorandums
119
United States Geological Survey Reports
114
NACA Wartime Reports
113
GJBX
105
Argonne National Laboratory Reports
84
United States Department of Energy Grand Junction Office Reports
78
NACA Technical Reports
72
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Flow observations with tufts and lampblack of the stalling of four typical airfoil sections in the NACA variable-density tunnel
From Summary: "A preliminary investigation of the stalling processes of four typical airfoil sections was made over the critical range of the Reynolds Number. Motion pictures were taken of the movements of small silk tufts on the airfoil surface as the angle of attack increased through a range of angles including the stall. The boundary-layer flow also at certain angles of attack was indicated by the patterns formed by a suspension of lampblack in oil brushed onto the airfoil surface. These observations were analyzed together with corresponding force-test measurements to derive a picture of the stalling processes of airfoils."
Date:
October 1938
Creator:
Abbott, Ira H. & Sherman, Albert
Object Type:
Report
System:
The UNT Digital Library
Divide Cut Drainage Structures Tennessee-Tombigbee Waterway Mississippi and Alabama: Hydraulic Model Investigation
Report on model tests related to drainage structures for the Tennessee-Tombigbee Waterway to provide recommendations about construction.
Date:
October 1976
Creator:
Ables, Jackson H., Jr.
Object Type:
Report
System:
The UNT Digital Library
Metabolism and Distribution of Inhaled Plutonium in Rats
From abstract: "Several different techniques were used to introduce tracer quantities of plutonium into the lungs of rats. When aerosols were produced by atomizing aqueous solutions of the nitrates it was found that approximately 20 per cent of the dose was absorbed and deposited in the skelton [sic] with tetra-, hexa-, and trivalent plutonium. Thus with these compounds, the lungs represent a more dangerous portal of entry than either oral (0.05 per cent) or intramuscular (13 per cent) administration. Tetravalent Pu was eliminated most slowly from the lung, the average half-time during the first month being 15 days. But when citrate was added to complex the Pu, over 70 per cent was eliminated within 1 day. This was accompanied by a deposition of over 30 per cent in the skelton [sic] and over 20 per cent in the liver. Presumably citrate breaks up the insoluble colloid in which Pu exists in the lungs. Complexing with cupferron which, unlike citrate, produces a "fat soluble" compound, greatly diminished the extent of absorption from the lungs. Plutonium oxide smokes which were produced at high temperatures were eliminated more slowly from the lungs (average half time of 30 days during the first month) and …
Date:
October 29, 1946
Creator:
Abrams, Richard; Siebert, H. C.; Potts, A. M.; Forker, L. L.; Greenberg, D.; Postel, A. et al.
Object Type:
Report
System:
The UNT Digital Library
Review of Potential Host Rocks for Radioactive Waste Disposal in the Southeast United States, Southern Piedmont Subregion
From abstract: "A literature study was conducted on the geology of the Southern Piedmont province of the states of Maryland, Virginia, North Carolina, South Carolina, and Georgia. The purpose was to identify geologic areas potentially suitable for containment of a repository for the long-term isolation of solidified radioactive waste."
Date:
October 1980
Creator:
Acres American Incorporated
Object Type:
Report
System:
The UNT Digital Library
Reactor Development Program Progress Report: September 1966
Report issued by the Argonne National Laboratory discussing progress made within the Reactor Development Program for September, 1966. The report includes highlights of the different project activities including plutonium utilization, fast breeder reactors, general reactor technology, advanced systems research, and nuclear safety. This report includes tables, illustrations, and photographs.
Date:
October 26, 1966
Creator:
Adams, R. M. & Glassner, A.
Object Type:
Report
System:
The UNT Digital Library
National Safety Competition of 1942
Report issued by the U.S. Bureau of Mines on its annual safety contest between mine workers. Different types of mines enrolled in the competition and the winners and honorable mentions for 1942 are presented. This report includes tables.
Date:
October 1943
Creator:
Adams, William Waugh & Lawrence, T. D.
Object Type:
Report
System:
The UNT Digital Library
An Evaluation of Mercury Cooled Breeder Reactors
Abstract: The technical feasibility and economic potential of fast breeder power reactor systems cooled with boiling mercury have been investigated by American-Standard under the United States Atomic Energy Commission's New Reactor Concepts Evaluation Program.
Date:
October 13, 1959
Creator:
Advanced Technology Laboratories
Object Type:
Report
System:
The UNT Digital Library
The Theories of Turbulence
"The theory of turbulence reached its full growth at the end of the 19th century as a result of the work by Boussinesq and Reynolds. It then underwent a long period of stagnation which ended under the impulse given to it by the development of wind tunnels caused by the needs of aviation. Numerous researchers, attempted to put Reynolds' elementary statistical theory into a more precise form. During the war, some isolated scientists - von Weizsacker and Heisenberg in Germany, Kolmogoroff in Russia, Onsager in the U.S.A. - started a program of research. By a system of assumptions which make it possible to approach the structure of turbulence in well-defined limiting conditions quantitatively, they obtained a certain number of laws on the correlations and the spectrum. Since the late reports have improved the mathematical language of turbulence, it was deemed advisable to start with a detailed account of the mathematical methods applicable to turbulence, inspired at first by the work of the French school, above all for the basic principles, then the work of the foreigners, above all for the theory of the spectrum" (p. 1).
Date:
October 1955
Creator:
Agostini, L. & Bass, J.
Object Type:
Report
System:
The UNT Digital Library
Hawaiian Monk Seal Epidemiology Plan: Health Assessment and Disease Status Studies
The following document provides a framework for incorporation of health and information to enhance recovery of the Hawaiian monk seal.
Date:
October 1999
Creator:
Aguirre, A. Alonso; Reif, John S. & Antonelis, George A.
Object Type:
Report
System:
The UNT Digital Library
Flight determination of wing and tail loads on a fighter-type airplane by means of strain-gage measurements
Report presenting a flight investigation to determine the contributions of wing, tail, and fuselage to the total airplane lift of a propeller-driven fighter-type airplane. The tests occurred over a range of Mach numbers. The loads on the various airplane components were measured by the use of calibrated strain-gage installations located at the roots of the wings and horizontal tail surfaces.
Date:
October 1948
Creator:
Aiken, William S., Jr.
Object Type:
Report
System:
The UNT Digital Library
Foundation Grouting Practices at Corps of Engineers Dams
The purpose of the assessment is to provide background information on the Corps' practices, identify shortcomings in specifications, estimates, grout placement techniques, and, in general, to determine the effectiveness of the Corps' grouting programs. The report reviews past grouting projects and describes the planning, execution, and performance evaluation of the programs.
Date:
October 1984
Creator:
Albritton, John; Jackson, Lawson & Bangert, Robert
Object Type:
Report
System:
The UNT Digital Library
Boiling of Freon-114 in a Three-Foot Straight Tube Evaporator
Introduction: this report covers two series of tests run on a Freon evaporator containing a vertical copper tube having an outside diameter of 7/8 of an inch, heated externally for a length of 35 inches by steam condensing in a concentric jacket.
Date:
October 19, 1961
Creator:
Allen, Charles F.
Object Type:
Report
System:
The UNT Digital Library
Motion of a ballistic missile angularly misaligned with the flight path upon entering the atmosphere and its effect upon aerodynamic heating, aerodynamic loads, and miss distance
From Summary: "An analysis is given of the oscillating motion of a ballistic missile which upon entering the atmosphere is angularly misaligned with respect to the flight path. The history of the motion for some example missiles is discussed from the point of view of the effect of the motion on the aerodynamic heating and loading. The miss distance at the target due to misalignment and to small accidental trim angles is treated. The stability problem is also discussed for the case where the missile is tumbling prior to atmospheric entry."
Date:
October 1957
Creator:
Allen, H. Julian
Object Type:
Report
System:
The UNT Digital Library
A Study of the Motion and Aerodynamic Heating of Missiles Entering the Earth's Atmosphere at High Supersonic Speeds
A simplified analysis of the velocity and deceleration history of missiles entering the earth's atmosphere at high supersonic speeds is presented. The results of this motion analysis are employed to indicate means available to the designer for minimizing aerodynamic heating. The heating problem considered involves not only the total heat transferred to a missile by convection, but also the maximum average and local time rates of convective heat transfer.
Date:
October 1957
Creator:
Allen, H. Julian & Eggers, A. J., Jr.
Object Type:
Report
System:
The UNT Digital Library
Heat of Combustion of the Product Formed by the Reaction of Acetylene and Diborane (LFPL-CZ-3)
The heat of combustion of the product formed by the reaction acetylene and diborane was found to be 20,100 +/- 100 Btu per pound for the reaction of liquid fuel to gaseous carbon dioxide, gaseous water, and solid boric oxide. The measurements were made in a Parr oxygen-bomb calorimeter, and chemical analyses both of the sample and of the combustion products indicated combustion in the bomb calorimeter to have been 97 percent complete. The estimated net heat of combustion for complete combustion would therefore be 20,700 +/- 100 Btu per pound.
Date:
October 24, 1957
Creator:
Allen, Harrison, Jr. & Tannenbaum, Stanley
Object Type:
Report
System:
The UNT Digital Library
Performance comparison at supersonic speeds of inlets spilling excess flow by means of bow shock, conical shock, or bypass
Report presenting a comparison of fixed-geometry, translating-spike, and bypass-inlets on the basis of turbojet- and ramjet-engine performance. Results regarding a comparison of the experimental data and its application to ramjet and turbojet engines are provided.
Date:
October 23, 1953
Creator:
Allen, J. L. & Beke, Andrew
Object Type:
Report
System:
The UNT Digital Library
A Sociocultural Assessment of Filipino Crew Members Working in the Hawaii-based Longline Fleet
From introduction: This report describes a subset of the results from a 2003-2004 sociocultural study of fishermen in the Hawaii-based longline fleet. Explored here are the perspectives and experiences of Filipino fishermen working as crew in the Hawaii longline industry.
Date:
October 2006
Creator:
Allen, Stewart D. & Gough, Amy
Object Type:
Report
System:
The UNT Digital Library
Neutron Diffraction Studies at the Puerto Rico Nuclear Center
A neutron diffraction program was initiated recently at the Puerto Rico Nuclear Center. The two double crystal spectrometers in use were assembled with the aid of staff members of the Brookhaven National Laboratory. The first research problem to be completed was a single crystal structure analysis of CaWO4. Choosing the origin at the 4(a) tungsten site in the tetragonal I41/a cell. the 16(f) oxygen parameters were found to be as follows: x=0.2413 ± 0.0005, y=0.1511 ± 0.0006, z=0.0861 ± 0.0001. Anisotropic temperature parameters were also determined for all atoms in the least squares analysis of the structure. The magnetic structure of CuSO4 has been determined in a continuation of a study started at Brookhaven in collaboration with Dr. P.J. Brown. Using the Wollan-Koehler-Bertaut notation, the antiferromagnetic spin ordering mode in the orthorhombic Pbnm cell is Ax, with the spin axis parallel to a. A moment of approximately 1 μB was found for the Cu2_ ion. The crystal structure of BaNiO2 was re-examined in a neutron powder diffraction study, and it was found that the earlier x-ray study of Lander is essentially correct. An alternative oxygen arrangement, for which x-rays would not have been very sensitive, had been suspected. BaNiO2 was …
Date:
October 15, 1963
Creator:
Almodovar, I; Bielen, H. J. & Frazer, B. C.
Object Type:
Report
System:
The UNT Digital Library
The Effect of Compression Ratio on Knock Limits of High-Performance Fuels in a CFR Engine 1: Blends of Triptane and 28-R Fuel
Report discussing the knock-limited performance of blends of triptane and 28-R fuel in an F-4 engine at three sets of conditions and three compression ratios. The knock limits of the triptane blends were more sensitive to compression ratio than the 28-R fuel, and the sensitivities of the blends increased as the severity of other engine conditions increased.
Date:
October 1944
Creator:
Alquist, Henry E. & Tower, Leonard K.
Object Type:
Report
System:
The UNT Digital Library
Combustion of Liquid Fuels in Diesel Engine
Hitherto, definite specifications have always been made for fuel oils and they have been classified as more or less good or non-utilizable. The present aim, however, is to build Diesel engines capable of using even the poorest liquid fuels and especially the waste products of the oil industry, without special chemical or physical preparation.
Date:
October 1924
Creator:
Alt, Otto
Object Type:
Report
System:
The UNT Digital Library
The Geochemistry of Uranium in Apatite and Phosphorite
The following report is preliminary in nature, discussing and analyzing traces of uranium in apatite and phosphorite.
Date:
October 1957
Creator:
Altschuler, Z. S.; Clarke, R. S., Jr. & Young, E. J.
Object Type:
Report
System:
The UNT Digital Library
Calculated Heats of Formation and Combustion of Boron Compounds (Boron, Hydrogen, Carbon, Silicon)
Memorandum presenting the calculation of the heats of formation and combustion for liquid and gaseous alkyl- and silyl-substituted boron compounds by a semitheoretical method. The results indicated that alkylation and more especially silylation reduce the heat of combustion. Results regarding alkyl- and silyldecaboranes, diborylmethane, diborylethane, and their alkyl derivatives, bipentaboranyl and bideocaboranyl, dipentaboranyl- and didecaboranylalkanes, and heats of combustion of isomers are provided.
Date:
October 4, 1955
Creator:
Altshuller, Aubrey P.
Object Type:
Report
System:
The UNT Digital Library
Method for studying helicopter longitudinal maneuver stability
A theoretical analysis of helicopter maneuver stability is made and the results are compared with experimental results for both a single and a tandem rotor helicopter. Techniques are described for measuring in flight the significant stability derivatives for use with the theory to aid in design studies of means for achieving marginal maneuver stability for a prototype helicopter.
Date:
October 1953
Creator:
Amer, Kenneth B.
Object Type:
Report
System:
The UNT Digital Library
Theory of helicopter damping in pitch or roll and a comparison with flight measurements
Report presenting calculations and flight-test measurements on a single-main-rotor helicopter indicate that the damping moment about the helicopter center of gravity produced during pitching or rolling by a rotor which has flapping hinges on the rotor shaft, which depends primarily on four quantities: rotor speed, blade mass factor, height of the rotor hub above the helicopter center of gravity, and the ratio of collective pitch to the thrust coefficient - solidity ratio.
Date:
October 1950
Creator:
Amer, Kenneth B.
Object Type:
Report
System:
The UNT Digital Library