Serial/Series Title
Country
14 Matching Results
Results open in a new window/tab.
Results:
1 - 14 of
14
Progress Report on Carnotite Studies; Carbonate Processes : August 1949
This is a progress report compiled by the chemical development department of the Carbide and Carbon Chemicals Corporation's Y-12 plant, discussing work on the carbonate (Monticello) process, as well as the recovery of uranium and vanadium from carbonate liquors.
Date:
September 8, 1949
Creator:
Brown, K. B.; Coleman, C. F. & Grimes, W. R.
System:
The UNT Digital Library
Progress Report on Carnotite Studies; Carbonate Process : July 1949
This report for the month of July, 1949 discusses progress regarding work on the carbonate process and the recovery of uranium and vanadium from carbonate liquors.
Date:
August 8, 1949
Creator:
Brown, K. B. & Coleman, C. F.
System:
The UNT Digital Library
Paper Chromatography in Synthetic Organic Chemistry: Microgram Scale Syntheses of Labeled Monoiodotyrosine, diiodotyrosine and thyroxine
A report on paper chromatography in synthetic organic chemistry.
Date:
July 8, 1949
Creator:
Lemmon, R. M.; Tarpey, Winifred & Scott, Kenneth G.
System:
The UNT Digital Library
Progress Report: May 1949: Preparation of Ductile Zirconium
Report discussing progress made by the National Research Corporation regarding preparation of ductile zirconium during the month of May, 1949.
Date:
July 8, 1949
Creator:
DiPietro, W. O.; Findlay, G. R. & Mellen, G. L.
System:
The UNT Digital Library
The General Picture of Irradiation Damage to Tissues
The following report is divided into two parts, both parts center around the effects of radiation on skin tissue. Part one focuses on superficial radiation, or Beta rays, while part two is on penetrating radiation, or neutrons and gamma rays.
Date:
July 8, 1947
Creator:
Henshaw, Paul S. & Snider, Ray S.
System:
The UNT Digital Library
Beta Magnet Current Stability
Abstract: A TEC regulator amplifier driving an Eaterline-Angus recording meter was used to record magnet current variations. Tests were made to determine magnet current variations. Tests were made to determine magnet current stability for currents from 500 amperes to 4000 amperes. Changes were necessary in both the TEC and GE regulators before currents below 2500 amperes could be regulated. Regulation to 0.025 percent for and hour was obtained for currents of 1000 to 4000 amperes with the TEC and GE regulators, and regulation to 0.05 percent for 500 ampere currents.
Date:
June 8, 1947
Creator:
Hudson, E. D. & Becker, M. C.
System:
The UNT Digital Library
The Toxicity and Metabolism of Plutonium in Laboratory Animals
Introduction. The main objective of the Metallurgical Project was the preparation of large quantities of plutonium 239, an isotope of element 94, by the interaction of neutrons and uranium. At the beginning, only predictions of its chemical and biological properties could be made since it is a new element. It was predicted that it would be toxic to tissue by virtue of its high atomic weight, and in addition, that it would be toxic by virtue of its radioactivity. Thus, the preparation and use of the element on a large scale meant the manipulation of, and possible exposure to, toxic quantities. It was, therefore, of practical importance to obtain data which would elaborate on the predicted toxicity. The objectives of the work reported here were to establish the acute toxicity of plutonium in experimental animals and to study the distribution of the element in the body after the administration of a wide range of doses. In the interest of economy of what was, at that time, a rare substance, and of animals and facilities, these two objectives were frequently pursued in the same experiment. The information obtained from the separate experiments is therefore frequently incomplete in one or another respect. …
Date:
May 8, 1947
Creator:
Finkle, Raymond D.; Snyder, Robert H.; Jacobson, Leon O.; Kisieleski, Walter E.; Lawrence, Blanche. & Simmons, Eric L.
System:
The UNT Digital Library
Factors Affecting the Extraction of Uranium with Dibutyl Carbitol
Abstract: "This is a compilation of the material in several reports on the extraction of uranium from aqueous solutions with dibutyl carbitol. Data is presented concerning the optimum conditions for the extraction of the uranium and elimination of impurities."
Date:
July 8, 1946
Creator:
Weaver, Boyd S. & Larson, C. E.
System:
The UNT Digital Library
Factors Affecting the Precipitation of Uranium Peroxide
Abstract: "This is a compilation of the data on uranium peroxide precipitations appearing in several reports. The solubility product is measured. The effect of many individual ions on the hydrogen peroxide decomposition rate and the complexing of uranium is demonstrated. Studies on plant and other highly contaminated solutions are not included."
Date:
July 8, 1946
Creator:
Mogg, D. W. & Larson, C. E.
System:
The UNT Digital Library
The Effect of Age on the Radiosensitivity of Mice
Abstract: Mice of different ages ranging from 1.5 to 12 months have been exposed to gamma rays in an effort to determine the change in radiosensitivity with age. The dose necessary to cause 50% killing was determined for each age group and sex. No change in sensitivity with age was observed with either sex, although the experimental error in the case of the males was quite large. The females were found to be more resistant than the males.
Date:
April 8, 1946
Creator:
Curtis, H. J.; Zirkle, Raymond E. (Raymond Elliot), 1902-1988; Anderson, Ernest C., 1920-2013 & Riley, E. F.
System:
The UNT Digital Library
The Solubility of Uranyl Oxalate and the Existence of Undissociated Uranyl Oxalate in Solution
Abstract: "The solubility of the solid, UO2C2O4 x rH2O, was measured at various acid and uranyl nitrate concentrations. The results of the measurements prove the existence of the uranyl oxalate complex - UO2C2O4, in solutions containing excess UO2^2."
Date:
September 8, 1945
Creator:
Pimentel, George C. & Stevenson, F. R.
System:
The UNT Digital Library
The Metal-Dielectric Junction of High-Voltage Insulators in Vacuum and Magnetic Field
From introduction: "This study is concerned with the shape of the electrodes of high-voltage insulator and with the method of joining them to the dielectric. The study is limited to insulators operating in vacuum, with special interest in the cases where strong magnetic fields are present. It is further limited to insulators with the high-voltage electrodes maintained at negative potential. The object of the study was to obtain information that would aid in improving the design of the insulators in two respects. First, to decrease to a minimum the number of charged particles set free which may directly or indirectly cause early failure of the insulator. Second, to increase the voltages at which partial or complete flashovers occur. Therefore, experiments were made to determine the principal phenomenon which have as their primary source the insulator under high electrical stress in vacuum."
Date:
August 8, 1945
Creator:
Kjofoid, M. J.; Alger, Raymond S. & Graves, D.
System:
The UNT Digital Library
Identification and Crystal Structure of Barium Hydrogen Phosphate
From abstract: "The report describes the complete structure of barium hydrogen phosphate, Ba HPO4, as determined by means of x-ray diffraction. The crystal is orthorhombic, with cell dimensions given by a=5.71 A b=7.05 A c=4.61 A. The calculated density is 4.15gm/cm[^]3 for two molecules in the unit cell. The space group is C[subscript]2v[superscript]7-pmn. The barium, phosphorus, and two sets of oxygen lie in the plane of symmetry. The third set of oxygens are in general positions. Parameters for these atoms have been found, and interatomic distances calculated. The positions of the hydrogens are indicated by the characteristics O-H-O distance (2.58A) between two oxygens."
Date:
August 8, 1944
Creator:
Mooney, Rose C. L.; Compton, A. H.; Allison, Samuel King, 1900-1965; Stearns, J. C. & Zachariasen, William H. (William Houlder), 1906-1979
System:
The UNT Digital Library
The Statistics of the Hypocritical Water Boiler
From introductory paragraph: "In a slightly hypocritical water boiler the introduction of a single neutron may give rise to a fairly large burst of neutrons which dies out slowly. As was shown some time ago by Frankel and Nelson with the help of A. Horn the statistics of this multiplication process can be treated in a simple way for the hypothetical case that the number of neutrons produced per fission is two."
Date:
January 8, 1944
Creator:
Frankel, S. P.
System:
The UNT Digital Library