Resource Type
Serial/Series Title
NACA Research Memorandums
440
NACA Technical Notes
236
Atomic Energy Commission Reports
231
United States Geological Survey Reports
94
United States Bureau of Mines Reports
60
NACA Technical Reports
57
Hanford Works Reports
49
HW (Series)
47
Trace elements investigations report
42
ORNL (Series)
41
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1,256 Matching Results
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Investigation of Turbulent Flow in a Two-Dimensional Channel
"A detailed exploration of the field of mean and fluctuating quantities in a two-dimensional turbulent channel flow is presented. The measurements were repeated at three Reynolds numbers, 12,300, 30,800, and 61,600, based on the half width of the channel and the maximum mean velocity. A channel of 5-inch width and 12:1 aspect ratio was used for the investigation" (p. 1).
Date:
1951
Creator:
Laufer, John
Object Type:
Report
System:
The UNT Digital Library
The Isotopic Composition of Trace Quantities of Lead and Calcium
The following report discusses development of new micro-chemical and micro-mas spectrometric techniques for handling trace quantities of lead. The first two sections of this report summarizes the development and trial application to mineral separates of a granite rock. The third section summarizes similar techniques developed for the determination of calcium, and gives the results of an application of the technique to the determination of the radioactive decay constants of K-40.
Date:
1951
Creator:
Patterson, Claire
Object Type:
Report
System:
The UNT Digital Library
Laboratory Studies for Separation Processes
This report analyzes general methods for the contentration of isotopes called the dual-temperature process, which is essentially an engineering application of the fundamental principle that the equilibrium constant for various isotope exchange reactions varies with temperature.
Date:
1951
Creator:
Eidinoff, Maxwell L.
Object Type:
Report
System:
The UNT Digital Library
Lignite in Greece
From Summary and Conclusions: "The objective of this investigation has been stated above in the Introduction. Studies were made of mining operations in the Athens Basin, Rafina and Oropos districts; the Kimi and Aliveri areas on the island of Euboea; and the Peloponnese in the vicinity of Kalamai. (See fig. 2). Mining practices at mines in these areas are summarized briefly in this report. Samples of lignite were shipped to Bureau of Mines experiment stations at Pittsburgh, Pa., and Golden, Colo., for washability and utilization studies."
Date:
1951
Creator:
Toenges, Albert L.; Crentz, W. L.; Parks, B. C. & Abernethy, R. F.
Object Type:
Report
System:
The UNT Digital Library
Low-Lift Drag and Duct Pressure Recovery of a 1/8.25-Scale Model of the Consolidated Vultee XF-92 Airplane at Mach Numbers from 0.7 to 1.4
"A flight investigation has been made to determine the external drag and pressure recovery of a 1/8.25 - scale flight model of the Consolidated Vultee XF-92 from Mach numbers 0.7 to 1.4 and Reynolds numbers from 8.5 x 10(exp 6) to 19.2 x 10(exp 6) at or near zero lift. Relative mass flow, average pressure recovery, total drag, internal drag, and external drag are presented as functions of Mach number. Between Mach numbers of 0.90 and 0.975, the external drag of the configuration (including base drag of the inner body and additive drag) was about equal to that of a similar model with a faired nose and no mass flow; however, at supersonic speeds the drag coefficient for the faired-nose model remained relatively constant whereas the drag coefficient for the ducted model continued to increase sharply" (p. 1).
Date:
1951
Creator:
Mitcham, Grady L.; Stevens, Joseph E.; Crabill, Norman L. & Hinners, Arthur H., Jr.
Object Type:
Report
System:
The UNT Digital Library
Lurgi Process: Use for Complete Gasification of Coals with Steam and Oxygen Under Pressure
From Introduction: "The United States Department of the interior, Bureau of Mines, is not only interested in coal gasification for the manufacture of gaseous fuels but also in the raw gas as a possible source of materials for the Synthetic Liquid Fuels program."
Date:
1951
Creator:
Cooperman, J.; Davis, J. D.; Seymour, W. & Ruckes, W. L.
Object Type:
Report
System:
The UNT Digital Library
A Magnetically Controlled Quartz Fiber Microbalance
Abstract: "The design, simplified techniques of construction, and uses of an electromagnetically controlled quartz fiber microbalances are described. The balance is capable of weighing directly an unbalanced load as large as 1.2 milligrams, carrying a counter-balanced load of 100 to 150 milligrams, and giving a sensitivity of 0.1 microgram per 6 minutes of arc. The one-piece all-quartz balance unit fits into a 25 millimeter diameter tube 12 centimeters long. The balance may be used under wide conditions of temperature, pressure, and reagents in completely closed systems. The balance is controlled by an external variable electromagnetic field."
Date:
1951
Creator:
Edwards, Frank C. & Baldwin, Robert R.
Object Type:
Report
System:
The UNT Digital Library
Measurement of Absolute Flux in the Test Pile
The following report investigates measurements to calculate the thermal neutron flux in the test pile.
Date:
1951
Creator:
Culvahouse, J. W. & Farrand, W. B.
Object Type:
Report
System:
The UNT Digital Library
Methods of Analyzing Coal and Coke
From Introduction: "The Bureau of Mines has received many requests for information concerning the methods its laboratories use for analyzing coal and coke and determining their heating value."
Date:
1951
Creator:
Fieldner, A. C. & Selvig, W. A.
Object Type:
Report
System:
The UNT Digital Library
Modification in the Peroxide-Colorimetric Method for Uranium Developed at the MIT Mineral Engineering Laboratory
The following report describes the use of a peroxide-colorimetric method for the determination of uranium in ores and ore products containing as little as 0.001 per cent U3O8 that was used at MIT from April, 1947, to September, 1948.
Date:
1951
Creator:
Kaufman, David & Galvenek, Paul, Jr.
Object Type:
Report
System:
The UNT Digital Library
Physical Behavior of the Hâ‚‚-Oâ‚‚-Hâ‚‚O System Under Pressure
Report regarding the solubilities of Hâ‚‚-Oâ‚‚ and 2Hâ‚‚:1Oâ‚‚ mixture over a range of temperatures and an atmospheric pressure of up to 2,000 pounds per square inch.
Date:
1951
Creator:
Smith, J. M. & Katz, D. L.
Object Type:
Report
System:
The UNT Digital Library
Preliminary Summary of Reconnaissance for Uranium in Southeastern Alaska During 1951
From abstract: Radiometric reconnaissance during the summer of 1951 of 47 abandoned lode mines and prospects in the predominantly mesothermal mineral belt in the central and southern parts of southeastern Alaska revealed radioactivity in excess of 0.005 percent equivalent uranium at only one locality.
Date:
1951
Creator:
Houston, J. R.
Object Type:
Report
System:
The UNT Digital Library
The Production of the Light Rare Earths in the Massive Metallic State
Abstract: "Cerium, lanthanum, praseodymium and neodymium metals have been prepared in high purity in the massive state by reducing the appropriate rare earth chloride with calcium metal, using iodine as an auxiliary oxidant. Vacuum remelting of the product metal is employed to eliminate small amounts of calcium and magnesium. Attempted reductions of samarium and yttrium halides have not been successful."
Date:
1951
Creator:
Spedding, F. H.; Wilhelm, Harley A.; Keller, W. H.; Ahmann, D. H.; Daane, A. H.; Hach, C. C. et al.
Object Type:
Report
System:
The UNT Digital Library
The Production of the Light Rare Earths in the Massive Metallic State
This report discusses experiments that study 15 irradiated rats that were given B80 r at the same rate and used to study the fate of potassium following x-ray.
Date:
1951
Creator:
Spedding, F. H.; Wilhelm, Harley A. & Keller, W. H.
Object Type:
Report
System:
The UNT Digital Library
Progress Report For January 16, 1951 - March 15, 1951
A progress report on the results obtained, during the period, on ore samples from Grants, New Mexico, Maryvale, Utah, Hite, Utah, a fluorite deposit in Utah, and Rand ores. Also reported are results obtained with anion exchange resins in pulp, and systematic studies with anion exchange resins. Application of the lyometallurgical process to several ores and the use of an activated alumina column for purification of pregnant solvent solutions before precipitation are mentioned. Analytical developments pertaining to boron and aluminum analysis are reported.
Date:
1951
Creator:
American Cyanamid Company
Object Type:
Report
System:
The UNT Digital Library
Progress Report For March 16, 1951 - May 15, 1951
A progress report on investigations dealing with ores from Grants, New Mexico, Lukachukai Mountain District in Arizona, Belgian Congo, Thomas Mountain Range in Utah, and the Witwatersrand, South Africa. Anionic exchange resin studies such as resin in pulp, self elution with Rand leach liquors, adsorption of uranyl nitrate and uranyl perchlorate, adsorption of iron, manganese, cobalt, arsenic and molybdenum from sulfite solutions, adsorption or uranium from chloride bearing sulfate solutions are reported. Study of the sulfating step in the lyometallurgy process is reported.
Date:
1951
Creator:
American Cyanamid Company
Object Type:
Report
System:
The UNT Digital Library
Progress Report For September 16, 1951 - November 15, 1951
This project report covers leaching and precipitation work on uranium ore samples from the Belgian Congo, South Australia (Radium Hill), Temple Mountain (Utah) and Grants, New Mexico. Ion exchange studies on the effect of cobalt, thiocyanate, and polythionates in Rand liquors and resin life testing studies are noted. Ion exchange work with Climax Uranium leach liquors using 2 inch diameter columns is reported. Lyometallurgical studies with the effect of organo-phosphates on the extraction of uranium from Chattanooga shales.
Date:
1951
Creator:
American Cyanamid Company
Object Type:
Report
System:
The UNT Digital Library
Progress Report of Reactor Science and Engineering Department; July 1 - September 30, 1951
Technical report covering the classified tests on two types of nuclear reactors of the Department of Reactor Science and Engineering. Outlines tests on heat transfer and hydraulics, fabrication and corrosion studies on the normal water.
Date:
1951
Creator:
Brookhaven National Laboratory
Object Type:
Report
System:
The UNT Digital Library
Proposed Exploration for Uranium in the Front Range Mineral Belt, Colorado
From abstract: Recorded production of pitchblende in the United States totals 313 tons of ore containing about 15 percent uranium. Of this total, 303 tons was produced at Central City and 8 tons at Lawson prior to World War I. The remaining 2 tons has been mined at Caribou during the past two years and is being stockpiled at the mine.
Date:
January 1951
Creator:
Moore, Frank B.; King, Robert Ugstad & Hinrichs, E. Neal
Object Type:
Report
System:
The UNT Digital Library
Proposed Exploration: Papsy's Hope No. 2 Uranium Prospect, Piute County, Utah
From abstract: This report describes the new workings and proposes that additional exploration be undertaken on the Papsy's Hope No. 2 property in Marysville, Utah.
Date:
January 1951
Creator:
Wyant, Donald G.
Object Type:
Report
System:
The UNT Digital Library
Radioactive Fluorite in the Thomas Range, Juab County, Utah
From abstract: The Thomas Range fluorite district, on Spor's Mountain in the western part of the Thomas Range, Juab County, Utah, is approximately 6 miles long and 2 miles wide, and contains almost no unclaimed land. The fluorite production of the district, since its discovery in 1943, has been 35,700 short tons. It was obtained from 12 different ore bodies on eight different properties. G. P. Spor, Ray Spor, and Chad Spor; Albert Willden and Earl Willden; T. A. Claridge; and W. E. Black and F. B. Chesley were the only groups producing fluorite in the district in August 1950.
Date:
January 1951
Creator:
Staatz, Mortimer Hay; Wilmarth, V. R. & Bauer, Herman L., Jr.
Object Type:
Report
System:
The UNT Digital Library
Radioactivity at the Jim Kane Mine, Mohave County, Arizona
Abstract: About 2,000 tons of low-grade lead ore has been produced from the Jim Kane mine, near Kingman, Mohave County, Ariz. A 3-foot vein of gouge and siderite stringers in pre-Cambrian gneiss contains some lead and, locally, is abnormally radioactive. A sample of the vein contained 0.067 percent uranium. Abnormal radioactivity is restricted to a small part of the vein, and no reserves are calculated.
Date:
January 1951
Creator:
Kaiser, E. P.
Object Type:
Report
System:
The UNT Digital Library
Radioactivity Detected in Precipitation and Settled Dust; April - May 1951
Technical report examining the precipitation and obtained samples of settled dust at Brookhaven National Laboratory.
Date:
1951
Creator:
Weiss, M. M.
Object Type:
Report
System:
The UNT Digital Library
Radioactivity in the Jo Reynolds Mine, Clear Creek County, Colorado
From abstract: Eight tons of high grade pitchblende ore was sold from the Jo Reynolds mine near Lawson, Clear Creek County, Colo., in 1919. The pitchblende occurs with silver, lead, and zinc in carbonate-quartz veins cutting pre-Cambrian schist, granite gneiss, and granite.
Date:
January 1951
Creator:
King, Robert Ugstad
Object Type:
Report
System:
The UNT Digital Library