UNT Libraries Government Documents Department - 132 Matching Results

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The Toxicity and Metabolism of Plutonium in Laboratory Animals

Description: 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… more
Date: May 8, 1947
Creator: Finkle, Raymond D.; Snyder, Robert H.; Jacobson, Leon O.; Kisieleski, Walter E.; Lawrence, Blanche. & Simmons, Eric L.
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The Use of Cupferron in Inorganic Analysis with Special Reference to the Determination of Uranium. I. Introduction. The Properties of Various Cupferrates

Description: A summary of works of numerous investigators who have studied the properties and the analytical applications of cupferron, phenyl nitroso hydroxylamine ammonium are presented.
Date: unknown
Creator: Furman, N. Howell (Nathaniel Howell), 1892-1965 & Mason, W. B. (William Burkett)
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The Use of Cupferron in Inorganic Analysis with Special Reference to the Determination of Uranium. II. The Factors that Control the Extraction of Various Elements from Aqueous Solution by Cupferron Plus an Organic Solvent

Description: A generalized formulation of the relations that apply to the extraction of an element by cupferron plus an organic solvent is desirable in choosing the conditions favorable to the process.
Date: unknown
Creator: Furman, N. Howell (Nathaniel Howell), 1892-1965 & Mason, W. B. (William Burkett)
open access

Use of Redux Adhesives for Bonding Metal

Description: Redux is a thermosetting synthetic resin manufactured by the Resinous Products & Chemical Co., Washington Square, Philadelphia 5, Pa. According to the manufacturer, it is intended for bonding metal to metal and metal to wood. It was apparently intended to replace rivets in aircraft structural parts and recent information indicates that a British airplane, the DeHaviland Dove, is in production using this resin. The adhesive was originally developed in England by Aero research Ltd. Experience a… more
Date: May 20, 1947
Creator: Martin, M.
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Velocity Analyzer

Description: Description of a velocity analyzer (with diagrams) is given. It is a device for measuring the velocities of charged particles which comprises pairs of spaced electrodes, a collector for charged particles, and means for propelling charged particles in a direction so as to pass between the pairs of electrodes. The pairs of electrodes and the collector are so arranged to permit passage of the charged particles between them to the collector plate. Means are provided for applying an alternating s… more
Date: April 2, 1947
Creator: Meecham, W. C.
open access

Viscosities and Densities of Fluorolube Oils

Description: Abstract: Since the viscosity-temperature relationships of fluorocarbons are somewhat unusual, when compared to hydrocarbons, for example, it was decided to measure the viscosities, at several temperatures, of various fluorolube oils. The calculation of the viscosity of a blend of oils is at best an uncertain operation, varying considerably with the method used. A comparison of various methods was indicated, in order that reasonably accurate values might be assumed for theoretical composites.… more
Date: April 28, 1943
Creator: Haendler, H. M.; Burger, L. L.; Sheldon, Z. D. & Barber, E. J.
open access

The X-Ray Spectra of the Last-Row Elements

Description: Abstract: X-ray energy level diagrams as given in the literature are tabulated for radium, thorium and uranium. A level scheme for protoactinium is derived from the published data. After a brief review of the use of X-ray data in studying outer electronic structure, it is pointed out that differences in the X-ray spectra should exist depending on whether the outer electrons are in f or d orbitals. The observed separation of the OI and OII levels in thorium and uranium indicated that the f lev… more
Date: October 22, 1946
Creator: Russell, H., Jr.
open access

X-Ray Study of the Uranium-Oxygen System

Description: The uranium-oxygen system has been studied as a function of composition by X-ray diffraction. Several new oxides and transition phases have been revealed, and the structures of most of the uranium oxides have been determined fully or in part.
Date: unknown
Creator: Rundle, R. E.; Baenziger, N. C. & Wilson, A. S.
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