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Technical Report Archive and Image Library
1,080
Office of Scientific & Technical Information Technical Reports
636
National Advisory Committee for Aeronautics Collection
597
TRAIL Microcard Collection
252
Texas Attorney General Opinions
189
Texas State Publications
24
Government Documents A to Z Digitization Project
16
USDA Farmers' Bulletins
8
Advisory Commission on Intergovernmental Relations
3
Environmental Policy Collection
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NACA Research Memorandums
360
NACA Technical Notes
194
Atomic Energy Commission Reports
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134
Trace elements investigations report
89
Hanford Works Reports
66
HW (Series)
49
Oak Ridge National Laboratory Reports
45
University of California Radiation Laboratory Reports
43
NACA Technical Reports
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1,949 Matching Results
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Production of Pebble-Type Fuel Elements
A capillary-drop method of producing spherical shapes of brittle materials less than 0.l00 inch in diameter was developed. It appears to be a feasible means for producing large numbers of pebble-tyne fuel element cores. Coating of pebble-type fuel element cores by the coating-pan technique, though not adequately developed, showed promise. (auth)
Date:
June 1, 1955
Creator:
Brassfield, H.C.
Object Type:
Report
System:
The UNT Digital Library
U.S. NAVY STRUCTURES. ANNEX 3.2 OF SCIENTIFIC DIRECTOR'S REPORT OF ATOMIC WEAPON TESTS AT ENIWETOK, 1951
Structures are subjected to a 50-kt blast, in order to obtain fundamental data on structures subjected to blast loading, to observe the response of the structures under this loading, and to determine the relative blast-resistance merits of several structural types. Modes of failure are determined. Shaped structures are found to be superdor to rectangular structures. Earth cover for the structures is also found to increase the blast resistance. It is found that standard Navy heavy bomb-proof structures with modifications can withstand a near-surface atomic burst at ground zero. (T.F.H.)
Date:
June 1, 1952
Creator:
Hayen, C.L.
Object Type:
Report
System:
The UNT Digital Library
Large-scale low-speed wind-tunnel tests of a model having a 60 degree delta horizontal canard control surface and wing to obtain static-longitudinal-stability and canard surface hinge-moment data
Report presenting a wind-tunnel investigation of a model equipped with a 60 degree delta wing and a 60 degree delta horizontal all-movable canard control surface to determine the stability, control, and canard-surface hinge-moment characteristics at low speeds and at a Reynolds number of 9 x 10(exp 6). Two longitudinal positions of the canard surface were tested. Results regarding lift and pitching moment, drag, and hinge moment are provided.
Date:
June 17, 1954
Creator:
Burrows, Dale L.
Object Type:
Report
System:
The UNT Digital Library
Protection of buildings and farm property from lightning.
Describes the threat of lightning and provides methods for protecting farm buildings and property from lightning damage.
Date:
June 1950
Creator:
Covert, Roy N.; Harrison, Louis P. & Garver, H. L. (Harry L.), 1891-
Object Type:
Book
System:
The UNT Digital Library
In Vivo Gamma Counting Method of Determining Uranium Lung Burden in Humans
Scintillation spectrometry is used to measure the gamma activity from uranium for determining lung burden in the human body.
Date:
June 23, 1959
Creator:
Cofield, Rogers E.
Object Type:
Report
System:
The UNT Digital Library
A Continuous Water Monitor for Detecting PPM Quantities of Alkali Metals
Abstract: "This report describes a flame photometric system which continuously monitors a process water stream for ppm quantities of alkali metals, and automatically diverts the stream when the contamination exceeds a pre-determined level."
Date:
June 20, 1955
Creator:
Been, Julian F.
Object Type:
Report
System:
The UNT Digital Library
Physical properties of Hanford metal waste
The Hanford metal wastes were divided into four categories: supernate - the liquid waste; hard sludge - dense agglomerates of poorly defined crystalline carbonates approximating the hardness of soft blackboard chalk; soft sludge - an easily slurried semi-solid consisting chiefly of needle-like phosphates; and recombined sludge - a representative sample of the solid wastes as received from Hanford, shown to be a mixture of hard and soft sludges in the ratio 2/3 by weight. The density of supernate, in the temperature range 24 to 74/sup 0/C, varied from 1.130 to 1.103 g/ml. Hard sludge density averaged 3.0 g/ml and that of soft sludge averaged 1.84 g/ml. The consistency, or apparent viscosity, as a function of temperature, shear rate, and solids content was measured individually on slurries of recombined, soft, and hard sludges using supernate as the suspending medium. Settling rates were also run on these 3 slurries as a function of solids content.
Date:
June 29, 1950
Creator:
Schilling, C.E.
Object Type:
Report
System:
The UNT Digital Library
National Motor-Gasoline Survey: Winter, 1949-50
Report issued by the U.S. Bureau of Mines on the motor fuel sold in the U. S. during the winter of 1949-1950. Properties and trend characteristics of the fuel sold are presented. This report includes tables, graphs, and a map.
Date:
June 1950
Creator:
Blade, O. C.
Object Type:
Report
System:
The UNT Digital Library
Improvements in Methods for Preparing Thin Sections of Rock
Report issued by the U.S. Bureau of Mines on the importance and instructions for preparing thin sections of rock for microscopic examination. Proper instructions and methods for preparation of thin sections are presented. The report includes photographs.
Date:
June 1950
Creator:
Gibbs, Harold L. & Evans, LaMar G.
Object Type:
Report
System:
The UNT Digital Library
Petroleum-Engineering Study of K.M.A. Reservoir, Southwestern Part K. M. A. Oil Field, Wichita and Archer Counties, Texas
Report issued by the Bureau of Mines discussing investigations conducted on the K.M.A. oil field in Wichita and Archer Counties, Texas. History, geology, production data, and drilling methods used in the field are presented. This report includes tables, maps, and illustrations.
Date:
June 1952
Creator:
Dobyns, Rollie P.; Ayers, Marion L. & Lewis, Roger E.
Object Type:
Report
System:
The UNT Digital Library
Estimate of Known Recoverable Reserves of Coking Coal in Raleigh County, West Virginia
Report issued by the U.S. Bureau of Mines to evaluate the known estimates of coking coal in Raleigh County, West Virginia. The investigation discusses the properties of coal and coal blends found in this region. This report contains tables, and maps.
Date:
June 1952
Creator:
Dowd, James J.; Toenges, Albert L.; Abernethy, R. F. & Reynolds, D. A.
Object Type:
Report
System:
The UNT Digital Library
Culture of oats in the western states.
Describes the different areas of the United States where oats are grown, how to prepare the soil, and how to effectively plant and harvest oats.
Date:
June 1959
Creator:
Coffman, Franklin A. (Franklin Arthur), 1892-; Stevens, Harland, 1907- & Stanton, T. R. (Thomas Ray), b. 1885
Object Type:
Book
System:
The UNT Digital Library
Preventing Black Rot Losses in Sweetpotatoes.
Describes how black rot can damage sweet potato crops, and the steps farmers can take to prevent and treat crops affected by it.
Date:
June 1950
Creator:
Cooley, J. S. (Jacquelin Smith), 1883- & Haskell, R. J. (Royal Joyslin), 1890-
Object Type:
Book
System:
The UNT Digital Library
Insurance for farmers : fire, windstorm, crop-hail, liability and life.
Describes risks that farmers face, and the different types of insurance that farmers should consider. Includes a check list of important insurance related questions.
Date:
June 1950
Creator:
Botts, Ralph R. (Ralph Rudolph), 1906-
Object Type:
Book
System:
The UNT Digital Library
National Motor-Gasoline Survey: Winter 1954-55
Report issued by the Bureau of Mines over the motor fuels sold during the winter of 1954-1955. Properties of the fuel samples collected are presented. This report includes tables, and maps.
Date:
June 1955
Creator:
Blade, O. C.
Object Type:
Report
System:
The UNT Digital Library
Estimate of Known Recoverable Reserves and Preparation Characteristics of Coking Coal in Scott County, Tennessee
Report issued by the Bureau of Mines over investigations of coking coal reserves of Scott County, Tennessee. Testing to determine suitability for producing metallurgical coke is also presented. This report includes tables, maps, and illustrations.
Date:
June 1956
Creator:
Williams, Lloyd; Gibbs, H. K.; Crentz, William L. & Miller, J. W.
Object Type:
Report
System:
The UNT Digital Library
Estimate of Known Recoverable Reserves of Coking Coal in Monongalia County, West Virginia
Report issued by the Bureau of Mines over investigations of coking-coal reserves of Monongalia County, West Virginia. Methods used, and measurements of coal reserves are listed. This report includes tables, and maps.
Date:
June 1956
Creator:
Travis, Raymond G.; Dowd, James J.; Abernethy, R. F. & Reynolds, D. A.
Object Type:
Report
System:
The UNT Digital Library
Estimate of Known Recoverable Reserves of Coking Coal in Bledsoe County, Tennessee
Report issued by the Bureau of Mines over investigations of coking-coal reserves of Bledsoe County, Tennessee. Methods used, and measurements of coal reserves are listed. This report includes tables, and maps.
Date:
June 1956
Creator:
Williams, Lloyd & Hershey, Robert E.
Object Type:
Report
System:
The UNT Digital Library
Estimate of Known Recoverable Reserves and Preparation Characteristics of Coking Coal in Fentress County, Tennessee
Report issued by the Bureau of Mines over investigations of coking coal reserves of Fentress County, Tennessee. Testing to determine suitability for producing metallurgical coke is also presented. This report includes tables, maps, and illustrations.
Date:
June 1956
Creator:
Lowe, R. W.; Crentz, William L. & Miller, J. W.
Object Type:
Report
System:
The UNT Digital Library
CHEMISTRY OF +1 IODINE IN ALKALINE SOLUTION
The iodine species formed either by adding hypochlorite to a basic iodide solution or by adding triiodide to sodium hydroxide, was identified as hypoiodite ion. The absorption spectrum of IO{sup -} was investigated in the wavelength range from 450 m{micro} to 280 m{micro}. The kinetics of the reaction I{sup -} + ClO{sup -} = IO{sup -} + Cl{sup -} was studied spectrophotometrically in alkaline solution. The forward rate law was found to be d(IO{sup -})/dt = k(I{sup -})(ClO{sup -})/OH{sup -}. At 25 C and an ionic strength of 1.00 M, k is 61 {+-} 3 sec{sup -1}. It was found spectrophotometrically that for certain ratios of the initial iodide to hydroxide concentrations, there was evidence of the presence of I{sub 3}{sup -}, I{sub 2}OH{sup -}, and I{sub 2}O{sup 2-} along with IO{sup -}. The equilibrium constants between IO{sup -} and these three species were evaluated by a graphical method. The formal potential of the cell: Pt:H{sub 2}:1 M NaOH : 1M NaOH, KI, NaIO : Au was found to be 1.297 v at 25 C. The equilibrium constant, K{sub 2} = (I{sub 3}{sup -})(OH{sup -}){sup 2}/(IO{sup -})(I{sup -}){sup 2}, of the reaction IO{sup -} + 2I{sup -} + H{sub 2}O …
Date:
June 2, 1958
Creator:
Chia, Yuan-tsan.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The New Element Californium (Atomic Number 98)
Definite identification has been made of an isotope of the element with atomic number 98 through the irradiation of Cm{sup 242} with about 35-Mev helium ions in the Berkeley Crocker Laboratory 60-inch cyclotron. The isotope which has been identified has an observed half-life of about 45 minutes and is thought to have the mass number 244. The observed mode of decay of 98{sup 244} is through the emission of alpha-particles, with energy of about 7.1 Mev, which agrees with predictions. Other considerations involving the systematics of radioactivity in this region indicate that it should also be unstable toward decay by electron capture. The chemical separation and identification of the new element was accomplished through the use of ion exchange adsorption methods employing the resin Dowex-50. The element 98 isotope appears in the eka-dysprosium position on elution curves containing berkelium and curium as reference points--that is, it precedes berkelium and curium off the column in like manner that dysprosium precedes terbium and gadolinium. The experiments so far have revealed only the tripositive oxidation state of eka-dysprosium character and suggest either that higher oxidation states are not stable in aqueous solutions or that the rates of oxidation are slow. The successful identification …
Date:
June 19, 1950
Creator:
Thompson, S. G.; Street Jr., K.; Ghiorso, A. & Seaborg, G. T.
Object Type:
Report
System:
The UNT Digital Library
THE CHOICE OF THE PROPER REFRACTORY FOR THE CASTING OF HIGHMELTING ELECTROPOSITIVE METALS
As titanium, zirconium, and other of the high melting electropositive metals become more important, the problem of using suitable refractory materials for their casting becomes more important. This paper discusses the method of choosing and testing possible container materials. To make the discussion more specific, titanium is used as an example. As titanium melt at 2000 {+-} 10 K, it is immediately clear that one is restricted to refractory materials melting considerably above 2000 K. This greatly limits the possible materials that might be considered. The possibility of using any pure high melting element can be quickly eliminated as titanium reacts quite vigorously with non-metals such as carbon and due to its high boiling point and therefore high internal pressure, one can predict that it dissolves even the most refractory metals. Examination of phase diagrams confirms that even metals such as tantalum, tungsten, and rhenium would not be able to resist attack by titanium. One is thus limited to high melting compounds such as the oxides, sulfides, nitrides, carbides, silicides, and borides. The first consideration is that, if possible, one would use a compound which is thermodynamically stable in the presence of titanium metal at 2000 K. Titanium should not …
Date:
June 20, 1950
Creator:
Brewer, Leo
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
Apparent viscosity of simulated underground metal waste slurries
From introduction: "This report presents the apparent viscosities of supernate-sludge slurries prepared synthetically to simulate the conditions known to exist in the waste storage tanks, but with fission products and plutonium absent."
Date:
June 20, 1950
Creator:
Allen, A. W.
Object Type:
Report
System:
The UNT Digital Library