Collection
Technical Report Archive and Image Library
988
National Advisory Committee for Aeronautics Collection
585
Office of Scientific & Technical Information Technical Reports
557
TRAIL Microcard Collection
218
Texas Attorney General Opinions
197
Texas State Publications
22
Government Documents A to Z Digitization Project
15
USDA Farmers' Bulletins
7
Environmental Policy Collection
2
Serial/Series Title
NACA Research Memorandums
364
NACA Technical Notes
184
Atomic Energy Commission Reports
122
United States Geological Survey Reports
109
Trace elements investigations report
62
Hanford Works Reports
50
University of California Radiation Laboratory Reports
44
HW (Series)
36
Oak Ridge National Laboratory Reports
28
NACA Technical Reports
22
70 More
Degree Department
Degree Level
Country
States
1,779 Matching Results
Results open in a new window/tab.
Results:
1 - 24 of
1,779
next
THE ELECTROMAGNETIC PINCH EFFECT FOR SPACE PROPULSION
The phenomenon of the electromagnetic pinch effect is used to accelerate ionized gases for space propulsion. Electrical energy, initially stored in capacitors, is discharged across two nozzle shaped electrodes wherein the radial pinch is converted to axial motion of the effected gases instead of confinement at the axis. The gas dynamics of a pinch using the hydrodynamical model of a msgnetic piston driving a shock wave is combined with the electrodynamics of the circuit to calculate the discharge behavior. Experiments on three different electrode designs are discussed and results compared with calculated values. Results are applied to one particular space propulsion system consisting of a nuclear energy source, a space radiator, a turbine-generator, capacitor, and a pinch tube. The specific mission analyzed is a one-way unmanned flight to a Mars orbit, starting from an Earth orbit. (auth)
Date:
August 1, 1959
Creator:
Kunen, A.E. & McIlroy, W.
Object Type:
Report
System:
The UNT Digital Library
Steady State Thermal Behavior of Hnpf Sodium Heat Transfer System
The performance of the Hallam Nuclear Power Facility heat transfer components was investigated in order to determine the steady-state, part load characteristics under various operating conditions. The complete steady-state temperature distributions, variations of flow rates and heat transfer coefficients throughout the sodium heat transfer systems as functions of reactor load are shown in a series of graphs. (M.C.G.)
Date:
August 10, 1959
Creator:
Stell, A.T.
Object Type:
Report
System:
The UNT Digital Library
Dissolution of aluminium oxide as a regulating factor in aqueous aluminum corrosion
The solubility of aluminum corrosion product in contact with metallic aluminum in deionized water has been determined over the range 80 to 350/sup 0/C. Evidence is presented to show that oxide dissolution results in the formation of a porous oxide on aluminum exposed in refreshed dynamic systems. Dynamic corrosion rate data have been analyzed on the basis of parabolic film growth and a linear oxide degradation process acting simultaneously on the system. The degradation process has been shown to be a function of refreshment rate.
Date:
August 31, 1959
Creator:
Dillon, R.L.
Object Type:
Report
System:
The UNT Digital Library
Drying forage by forced ventilation.
Discusses different systems of forced-air ventilation as a means of harvesting and drying forage crops.
Date:
August 1951
Creator:
Davis, Roy B. (Roy Benjamin), 1919-; Schoenleber, Leonard G. & Campbell, Lowell Eugene, 1920-
Object Type:
Book
System:
The UNT Digital Library
Progress Report on Waste Concentration Studies: Engineering Results on the BNL Semi-Works Vapor Filtration Vapor Compression Evaporator
Report issued by the Brookhaven National Laboratory discussing progress of waste concentration studies. As stated in the introduction, "the present report covers all experimental hot runs up to the time the still was turned over to the Waste Control Section for intermediate handling of laboratory D waste" (p. 1). This report includes tables, illustrations, and photographs.
Date:
August 15, 1951
Creator:
Horrigan, R. V.; Fried, H. M.; Manowitz, B.; Kuhl, O.; Baranosky, J. A.; Bellanca, S. et al.
Object Type:
Report
System:
The UNT Digital Library
An experimental study of five annular air inlet configurations at subsonic and transonic speeds
Report presenting an investigation of an NACA 1-80-100 nose inlet fitted alternately with an elliptical, a parabolic, a 14 degree-inch conical, and a 22 degree-inch conical central body at subsonic and transonic speeds in the 8-foot transonic tunnel. Drag, surface-pressure, and pressure-recovery measurements were obtained at 0 degrees angle of attack through a range of Mach numbers. Results regarding tunnel boundary interference, surface-pressure distribution, external drag, pressure recovery, and propulsive thrust comparison are provided.
Date:
August 19, 1953
Creator:
Pendley, Robert E.; Milillo, Joseph R.; Fleming, Frank F. & Bryan, Carroll R.
Object Type:
Report
System:
The UNT Digital Library
Petroleum-Engineering Study of the Carthage Gas Field, Panola County, Texas
Report issued by the Bureau of Mines over petroleum-engineering studies conducted in Carthage, Texas. The results of the studies are presented and discussed. This report includes tables, maps, illustrations, and photographs.
Date:
August 1950
Creator:
Wilhelm, C. J.; Harris, H. M. & Harlin, M. N.
Object Type:
Report
System:
The UNT Digital Library
Effect of Oil-Base Drilling Fluid Filtrate on Analysis of Cores from South Coles Levee, California, and Rangely, Colorado Fields
Report issued by the U.S. Bureau of Mines on the study of contamination of cores obtained with conventional core barrels. The effect of the oil-based drilling fluid and analysis of the cores are presented. The report includes tables, graphs, and illustrations.
Date:
August 1950
Creator:
Gates, Gates L.; Morris, Frank C. & Caraway, W. Hodge
Object Type:
Report
System:
The UNT Digital Library
Burning Anthracite Barley on a Chain-Grate Stoker in a Two-Arch Furnace
Report issued by the U.S. Bureau of Mines on the use of anthracite barley as a fuel for a chain-grate stoker in a two-arch furnace. The efficiency and capacity of the anthracite barley as fuel is presented. Tables, graphs, and illustrations are included in the report.
Date:
August 1950
Creator:
Burdick, L. R. & Morgan, R. E.
Object Type:
Report
System:
The UNT Digital Library
Petroleum-Engineering Study of Gas Injection in the Cabin Creek Field, Kanawha and Boone Counties, West Virginia
Report issued by the U.S. Bureau of Mines on the study of oil recovery through gas-injection techniques. The report discusses these secondary oil recovery methods in Cabin Creek field in West Virginia. This report contains maps and tables.
Date:
August 1952
Creator:
Magee, Joe N. & Taylor, Sam S.
Object Type:
Report
System:
The UNT Digital Library
Managing winter sheep range for greater profit.
Describes how to manage winter sheep in the western United States in order to increase production and profits.
Date:
August 1954
Creator:
Hutchings, Selar S. (Selar Stephen), 1904-
Object Type:
Book
System:
The UNT Digital Library
Demodectic Mange in Cattle.
Describes demodectic mange, its causes, how it is recognized on cattle, and what can be done to control the disease.
Date:
August 1958
Creator:
United States. Agricultural Research Service. Animal Disease and Parasite Research Division.
Object Type:
Book
System:
The UNT Digital Library
Commercial growing and harvesting of sweetpotatoes.
Describes different types of sweet potatoes, and the methods for transplanting, cultivating, and harvesting them. Argues the possibility of increasing the profitability of this crop.
Date:
August 1950
Creator:
Boswell, Victor R. (Victor Rickman), 1900-
Object Type:
Book
System:
The UNT Digital Library
Estimate of Known Recoverable Reserves of Coking Coal in Mingo County, West Virginia
Report issued by the Bureau of Mines over investigations of coking-coal reserves of Mingo County, West Virginia. Methods used, and measurements of coal reserves are listed. This report includes tables, and maps.
Date:
August 1954
Creator:
Wallace, Joseph J.; Dowd, James J.; Tavenner, William H.; Abernethy, R. F. & Reynolds, D. A.
Object Type:
Report
System:
The UNT Digital Library
Estimate of Known Recoverable Reserves of Coking Coal in Greene County, Pennsylvania
Report issued by the Bureau of Mines over investigations of coking-coal reserves of Greene County, Pennsylvania. Methods used, and measurements of coal reserves are listed. This report includes tables, and maps.
Date:
August 1955
Creator:
Wallace, Joseph J.; Dowd, James J.; Provost, John M.; Abernethy, R. F. & Reynolds, D. A.
Object Type:
Report
System:
The UNT Digital Library
Estimate of Known Recoverable Reserves of Coking Coal in Grundy County, Tennessee
Report issued by the Bureau of Mines over investigations of coking-coal reserves of Grundy County, Tennessee. Methods used, and measurements of coal reserves are listed. This report includes tables, and maps.
Date:
August 1955
Creator:
Hershey, Robert E.; Williams, Lloyd & Gandrud, B. W.
Object Type:
Report
System:
The UNT Digital Library
Separation of Iron and Cobalt on Synthetic Resin
In the separation of mixtures of radioactive iron and cobalt from neutron irradiated targets and in the removal of iron from cobalt targets for cyclotron production of radioiron, it is desirable to have a method superior to extraction from isopropyl ether in efficiency and ease of manipulation. Recent studies by Moore and Kraus on the separation of cobalt and nickel and on the behavior of iron in hydrochloric acid on Dowex-l resin in relation to the selective adsorption of chloride complexes of these elements have suggested the use of resin for the separation of iron and cobalt.
Date:
August 5, 1953
Creator:
Helwig, H. L.; Ashikawa, J. K.; Clokie, H. & Smith, E. R.
Object Type:
Report
System:
The UNT Digital Library
STOPPING POWER AND ENERGY FOR ION PAIR PRODUCTION FOR 340 MEVPROTONS
The relative stopping powers for 300 Mev protons of H, Li, Be, C, Al, Fe, Cu, Ag, Sn, W, Pb, and U have been measured. The results are shown in Table I. The energy spent per ion-pair production in the gases H{sub 2}, He, N{sub 2}, O{sub 2}, and A at 340 Mev proton energy has also been measured. The results are shown in Table II.
Date:
August 3, 1950
Creator:
Bakker, C.J. & Segre, E.
Object Type:
Report
System:
The UNT Digital Library
The Roll Cladding of Uranium With Aluminum
Report discussing a study regarding rolling as a technique for making uranium fuel elements that are flat-plate and aluminum-clad.
Date:
August 3, 1954
Creator:
Saller, Henry A.; Paprocki, Stan J. & Delaney, J. F.
Object Type:
Report
System:
The UNT Digital Library
Progress Report on Refining of MgX and Other Uranium-Bearing Materials
From abstract: "Results of two methods of reducing the phosphate and vanadate contents of MgX, a uranium precipitate from the Belgian Congo, are described...Chemical analyses of several samples of pitchblende and MgX are presented."
Date:
August 31, 1950
Creator:
Ewing, R. A.; Kiehl, S. J., Jr. & Bearse, A. E.
Object Type:
Report
System:
The UNT Digital Library
Kinematics of the Relativistic Two-Body Problem
Abstract: "The kinematics of elastic scattering, inelastic scattering, and the two body reaction problem is developed in the relativistic limit and exact expressions obtained for the energies, angles, and solid-angle transformations involved. The results are specialized for zero rest mass of one or more of the particles involved. An outline for the coding of the problem on the I.B.M. Electronic Data Processing Machine, Type 701 is presented."
Date:
August 1955
Creator:
Blumberg, Leroy & Schlesinger, Stewart I.
Object Type:
Report
System:
The UNT Digital Library
Preliminary Studies of Scavenging Systems Related to Radioactive Fallout : Eighth Letter Report, June 1 to August 1, 1959
Introduction: "This is the eighth letter report on ARF Project C 127, entitled "Preliminary Studies of Scavenging Systems Related to Radioactive Fallout." This report covers the period from June 1 to August 1, 1959."
Date:
August 20, 1959
Creator:
Stockham, John D. & Rosinski, John
Object Type:
Report
System:
The UNT Digital Library
An Application of the Concepts of Particle Packing to the Consolication of Silicon Carbide Powders
From introduction: Silicon carbide is being considered as a basis material for nonmetallic fuel elements because of its high thermal conductivity, low nuclear cross section, high resistance to thermal rupture, and high degree of stability at high temperature in air. A requirement of the fuel elements is that they be thin and have as low porosity as possible. One shape of element under consideration is 0.050 to 0.070 inch thick by a few inches in width and breadth.
Date:
August 15, 1952
Creator:
Harman, Cameron G.; Shinn, J., Jr. & Wagner, H. E.
Object Type:
Report
System:
The UNT Digital Library
Hydrogen Embrittlement of Zirconium
Abstract: "The amount of hydrogen normally present in zirconium and zirconium alloys suffices to reduce their ductility greatly in an impact test at room temperature, after slow cooling from 600 F. Quenching from 600 F or above gives high impact strength, as does removal of hydrogen by high-temperature vacuum annealing. This report discusses the evidence on hydrogen embrittlement, the diffusion, solid solubility, and equilibrium pressure of hydrogen of hydrogen in zirconium, the microstructure, and the effects of hydrogen and heat treatment on the mechanical properties of zirconium."
Date:
August 22, 1952
Creator:
Dayton, Russell Wendt; Schwope, A. D.; Muehlenkamp, G. T.; Saller, Henry A.; Dickerson, R. F.; Schwartz, C. M. et al.
Object Type:
Report
System:
The UNT Digital Library