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Technical Report Archive and Image Library
1,463
National Advisory Committee for Aeronautics Collection
766
Office of Scientific & Technical Information Technical Reports
429
TRAIL Microcard Collection
370
Texas Attorney General Opinions
231
USGS Topographic Map Collection
151
Government Documents A to Z Digitization Project
28
Texas State Publications
17
USDA Farmers' Bulletins
16
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3
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NACA Research Memorandums
518
United States Geological Survey Reports
233
Atomic Energy Commission Reports
221
NACA Technical Notes
187
7.5 Minute Series (Topographic)
130
Trace elements investigations report
128
HW (Series)
86
Hanford Works Reports
84
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54
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Effects of Overpressures in Group Shelters on Animals and Dummies
S>Relative biological hazards of blast were studied in two types of communal air-raid shelters during Shots 1 and 8. Dogs, restrained within the shelters during detonation, were studied pathologically and clinically for blast injuries. Two anthropometric dummies were test objects for displacement studies utilizing high-speed photography. Physical data included pressure vs time and air-drag determinations. During Shot 1, animals sustained marked blast damages (hemorrhages in lungs and abdominal organs), three dogs were ataxic. and the dummies were rather violently displaced. In Shot 8, however, no significant injuries were found in the animals, and the dummies were minimally displaced. Analysis of the physical data indicated that blast injuries and violent displacements may occur at much lower static overpressures than previously assumed from conventional explosion data. Furthermore, biological damage appeared to be related to the rate of rise of the overpressure and air drag, as well as the maximum overpressure values. (auth)
Date:
September 1, 1953
Creator:
Roberts, J. E.; White, C. S. & Chiffelle, T. L.
Object Type:
Report
System:
The UNT Digital Library
Investigations toward simplification of missile control systems
Paper presenting three ideas regarding potential simplifications of missile-control systems in order to make them more reliable without sacrificing system performance. The three methods presented include an autorotating-vane spoiler, a bellows flap, and free controls. All are based on modified airplane control systems.
Date:
November 12, 1953
Creator:
Curfman, Howard J., Jr.; Strass, H. Kurt & Crane, Harold L.
Object Type:
Report
System:
The UNT Digital Library
Comparison of the performance of a helicopter-type ram-jet engine under various centrifugal loadings
Report presenting an investigation of an 18-foot-radius helicopter rotor powered by tip-mounted ramjet engines in the helicopter test tower. The engine performance is compared with the performance determined in a previous investigation of a 9-foot-radius rotor with the same engines at similar speeds but with twice the centrifugal forces. Results regarding the propulsive characteristics, minimum specific fuel consumption and corresponding propulsive thrust, and operational characteristics are provided.
Date:
October 7, 1953
Creator:
Radin, Edward J. & Carpenter, Paul J.
Object Type:
Report
System:
The UNT Digital Library
Wind-Tunnel Investigation to Determine the Horizontal- and Vertical-Tail Contributions to the Static Lateral Stability Characteristics of a Complete-Model Swept-Wing Configuration at High Subsonic Speeds
Results regarding an investigation to determine the horizontal- and vertical-tail contributions to the static lateral stability of a complete-model swept-wing configuration at high subsonic speeds. Generally, Mach number effects within the range studied and wing effects on the tail contribution were small and the overall trends of the data of the present investigation agreed with those which have been established at low speeds.
Date:
July 10, 1953
Creator:
Wiggins, James W.; Kuhn, Richard E. & Fournier, Paul G.
Object Type:
Report
System:
The UNT Digital Library
Rocket-Model Investigation to Determine the Hinge-Moment and Normal-Force Properties of a Full-Span, Constant-Chord, Partially Balanced Trailing-Edge Control on a 60 Degree Clipped Delta Wing Between Mach Numbers of 0.50 and 1.26
Report presenting a free-flight investigation of a rocket-powered research model to determine the hinge-moment and normal-force characteristics of a trailing-edge control on a delta wing between Mach numbers of 0.50 and 1.26. The hinge-line location of 40 percent control chord satisfactorily reduced the high hinge moments associated with plain flap-type controls. Results regarding hinge moments and normal force are provided.
Date:
October 30, 1953
Creator:
Martz, C. William & Goslee, John W.
Object Type:
Report
System:
The UNT Digital Library
A study of the use of various high-lift devices on the horizontal tail of a canard airplane model as a means of increasing the allowable center-of-gravity travel
Report presenting an investigation to study the use of various high-lift devices on the horizontal tail of a canard airplane model as a means of increasing the allowable center-of-gravity travel. The results indicated that the large increases in allowable center-of-gravity travel could be obtained using the devices. Results regarding the basic aerodynamic data, effect of tail configuration on the allowable center-of-gravity travel, and a comparison of measured and predicted values of the allowable center-of-gravity travel are provided.
Date:
January 21, 1953
Creator:
Johnson, Joseph L., Jr.
Object Type:
Report
System:
The UNT Digital Library
Chinchilla Raising.
Describes the characteristics of chinchillas; discusses how to care for chinchillas and raise them for fur.
Date:
January 1953
Creator:
Kellogg, Charles E. (Charles Edward), 1890-
Object Type:
Book
System:
The UNT Digital Library
Part-time farming.
Describes the advantages and disadvantages of part-time farming; provides recommendations for types of produce, equipment, and labor.
Date:
1953
Creator:
Scoville, Orlin J. (Orlin James), 1911- & Smith, Katherine A. (Katherine Augusta), 1884-
Object Type:
Book
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
Ornamental hedges for the southern Great Plains.
Discusses ornamental hedges that are best for use in the southern Great Plains and methods for their care. Gives instructions for selecting planting stock, care, and pruning hedges.
Date:
February 1953
Creator:
Johnson, E. W. (Ernest W.), 1904-
Object Type:
Book
System:
The UNT Digital Library
The Guinea Fowl.
Describes the types of guinea fowl and their characteristics .
Date:
December 1953
Creator:
United States. Agricultural Research Administration. Poultry Section.
Object Type:
Book
System:
The UNT Digital Library
University of Chicago Laboratory of Molecular Structure and Spectra Technical Report: 1952-1953, Part 1
Report containing articles, manuscripts, and tabulations of recorded spectra created by the Spectroscopic Laboratory of the University of Chicago.
Date:
1953~
Creator:
University of Chicago. Laboratory of Molecular Structure and Spectra.
Object Type:
Report
System:
The UNT Digital Library
University of Chicago Laboratory of Molecular Structure and Spectra Technical Report: 1952-1953, Part 2
Report containing articles, manuscripts, and tabulations of recorded spectra created by the Spectroscopic Laboratory of the University of Chicago.
Date:
1953~
Creator:
University of Chicago. Laboratory of Molecular Structure and Spectra.
Object Type:
Report
System:
The UNT Digital Library
United States Earthquakes, 1953
Report discussing earthquake activity in the United States during 1953. The report is broken down by regions and has sections for specific earthquakes.
Date:
1953
Creator:
unknown
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
Summary - Bevatron Research Meeting II
The operational characteristics of the Cosmotron were reviewed in brief. Since a rather complete account of this machine is now available in the September 1953 issue of Rev. Sci. Inst., this summary will include only the more recent utilization of the machine as a research instrument.
Date:
October 13, 1953
Creator:
Chamberlain, Owen
Object Type:
Report
System:
The UNT Digital Library
Electroplates on Thorium
Abstract: "The protection of thorium in hot water was studied. Copper electrocladding on thorium offers promising protection against hot water. The corrosion of thorium in 95 C water was reduced appreciably by a thorium phosphate film. The results of this abbreviated investigation offer a basis for the development of a method of protecting thorium at elevated temperatures in corrosive media."
Date:
January 9, 1953
Creator:
Beach, John G.; Schickner, W. C.; Vaaler, L. E. & Faust, Charles L.
Object Type:
Report
System:
The UNT Digital Library
The Fabrication of Thorium Tubes
Abstract: "Thorium tubes were cold drawn from extruded tube stock and also from drilled hot-rolled rod. Total reductions up to approximately 85 per cent were accomplished by conventional tube-drawing methods, without an intermediate anneal. The hard-drawn tubes had high tensile strength, but the ductility, as indicated by flaring and flattening tests, was low."
Date:
January 16, 1953
Creator:
Saller, Henry A. & Keeler, J. R.
Object Type:
Report
System:
The UNT Digital Library
Protective Coatings for Molybdenum
Report discussing studies on various types of protective coatings for a molybdenum sheet. Procedures, materials, and results of each coating are included.
Date:
February 17, 1953
Creator:
Powell, Carroll F.; Jones, R. P.; Secrest, A. C.; Sherwood, E. M. & Campbell, Ivor E.
Object Type:
Report
System:
The UNT Digital Library
Creep Strength of Uranium Alloys at 1500 and 1800 F
Abstract:"The creep resistance of various uranium binary alloys was investigated at 1500 and 1800 F in vacuum. Tests were made on alloys of uranium with beryllium, columbium, molybdenum, tantalum, titanium, and zirconium and on molybdenum-UO2 composites. Of the alloys examined, those of the uranium-molybdenum system exhibited the best creep resistance. At 1500 F, creep rates of about 0.005%/hr were produced in uranium-molybdenum alloys by a stress of 2500 psi and, at 1800 F, similar creep rates were obtained in composites of 90 wt % molybdenum-10 wt % UO2 by a stress of 12,000 psi."
Date:
May 28, 1953
Creator:
Saller, Henry A.; Stacy, J. T.; Eddy, N. S. & Klebanow, H. L.
Object Type:
Report
System:
The UNT Digital Library
The Solubility of Oxygen in Uranyl Sulphate Solutions at Elevated Temperatures
Abstract: "The solubility of oxygen in uranyl sulphate solutions and in water at 212, 275, and 325 F, and at oxygen partial pressures up to 1500 psia was investigated. The results are presented in tabular and graphic form. The solubility is proportional to the partial pressure of oxygen. The ratio of solubility in the uranyl sulphate solution to solubility in water at the same temperature and pressure is a function of the concentration of the salt in solution."
Date:
June 10, 1953
Creator:
Pray, H. A. & Stephan, Elmer F.
Object Type:
Report
System:
The UNT Digital Library
The Ductility of Brazed Stainless Steel Joints
Abstract: "The ductility of Type 310 stainless steel T-joints brazed with GE-62 brazing alloy was measured at room temperatures 1200, 1650, and 1800 F. The measure of ductility was taken as the plastic axial strain required to crack braze fillets in T-section tensile specimens. At elevated temperatures, the ductility of as-brazed joints approximated that of the stainless steel, but at room temperature the brazed joints had only one-tenth the ductility of the base metal. Annealing for 16 hr at 1800 F in air was found to triple the room-temperature ductility of the brazed joint."
Date:
July 8, 1953
Creator:
Saller, Henry A.; Stacy, J. T. & Eddy, N. S.
Object Type:
Report
System:
The UNT Digital Library
The Application of Ceramics to Hanford Fuel Elements
From introduction: This work is a survey of possible uses of ceramic materials in Hanford-type fuel elements.
Date:
September 4, 1953
Creator:
King, B. W.; Tripp, H. P. & Duckworth, W. H.
Object Type:
Report
System:
The UNT Digital Library
Progress Report on Nonaqueous Extractive Methods for Western Uranium Ores
Abstract: "Dissolution of carnotite in several readily liquefiable gases, including ammonia, sulfur dioxide, chlorine, and nitrogen dioxide, was found to be negligible, even in the presence of uranium complexing agents. No low-boiling liquids have been found which will dissolve carnotite directly. Treatment with various sulfur chloride will convert carnotite to a form soluble in water or in certain organic solvents. Also, carnotite can be readily dissolved in HCl-acidified ethanol, methanol, or acetone. Amenability tests on nine western ores with HCl-methanol solvent indicated that uranium extractions greater than 90 per cent could be obtained if sufficient acid was used to insure some free acidity in the pregnant liquor. Temple Mountain and Sinbad-Muddy River ores were exceptions to this, uranium extractions being only about 50-60 per cent. Vanadium extractions were invariably lower than uranium extractions. Chemical analyses are presented for nine western ores."
Date:
January 15, 1953
Creator:
Ewing, R. A.; Pobereskin, M.; Kiehl, S. J.; Foley, D. D.; Filbert, Robert B.; Kimball, R. B. et al.
Object Type:
Report
System:
The UNT Digital Library