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Boiling of Freon-114 in a Three-Foot Straight Tube Evaporator (open access)

Boiling of Freon-114 in a Three-Foot Straight Tube Evaporator

Introduction: this report covers two series of tests run on a Freon evaporator containing a vertical copper tube having an outside diameter of 7/8 of an inch, heated externally for a length of 35 inches by steam condensing in a concentric jacket.
Date: October 19, 1961
Creator: Allen, Charles F.
Object Type: Report
System: The UNT Digital Library
Graphitization Processes in Cokes and Carbon Blacks (open access)

Graphitization Processes in Cokes and Carbon Blacks

Abstract: "The effect of heat treatment of 2000 to 4650 F on the structure of carbons from several sources have been investigated, using X-ray diffraction. Of particular interest was the effect of temperature on the degree of graphitization. The process of graphitization results in a larger graphite crystallite size in the ao direction, the plane of the layers, than in the co direction. No correlation was found between the structure of the coke heated at 2000 F and the degree of graphitization attained at 4650 F. Materials coked in a closed retort yielded a more perfect graphite structure than the same material coked with access to air. Carbon blacks yield graphite with a greater co lattice constant than cokes with comparable crystallite sizes."
Date: June 19, 1953
Creator: Austin, A. E. & Hedden, W. A.
Object Type: Report
System: The UNT Digital Library
͟v͟ic-Dioximes as Analytical Reagents (open access)

͟v͟ic-Dioximes as Analytical Reagents

This technical report discusses the synthesis of vic-dioximes, the analysis of vic-dioximes, the structure of vic-dioximes, the structure of metal(II)-vic-dioxime complexes, and analytical applications of this research. The report includes tables and figures that accompany the report's contents and findings.
Date: March 19, 1962
Creator: Banks, Charles V.
Object Type: Report
System: The UNT Digital Library
Stability Constants and Intrinsic Solubility of Several Nickel(II)-vic-Dioxime Complexes (open access)

Stability Constants and Intrinsic Solubility of Several Nickel(II)-vic-Dioxime Complexes

This technical report discusses processes to study the stability constants and intrinsic solubility of several Nickel(II)-vic-Dioxime complexes.
Date: March 19, 1962
Creator: Banks, Charles V. & Anderson, Samuel
Object Type: Report
System: The UNT Digital Library
Laboratory Development of the MTR-RaLa Process for the Production of Barium140 (open access)

Laboratory Development of the MTR-RaLa Process for the Production of Barium140

From abstract: "This report presents the laboratory development of the MTR-RaLa Process for the production of barium140 from Materials Testing Reactor assemblies." The laboratory studied four possible chemical schemes with the final process being chosen "on the basis of chemical yield and purity of product, ease of recovery of uranium235, simplicty of equipment, and overall time required for processing" (from introduction).
Date: August 19, 1952
Creator: Blanco, R. E., (Raymond Eugene), 1918-1987; Kibbey, A. H.; Pannell, J. H.; Shank, E. M.; Farmer, J. E.; Helton, D. M. et al.
Object Type: Report
System: The UNT Digital Library
An Investigation of ThF4 - Fused Salt Solutions for Homogeneous Breeder Reactors (open access)

An Investigation of ThF4 - Fused Salt Solutions for Homogeneous Breeder Reactors

Technical report presenting a consideration of the characteristics of fused salt-ThF4 solutions suitable for use in homogeneous reactors. Presented in tandem with a brief survey of the literature pertaining to such solutions and a summary of the experimental work accomplished. [From Abstract]
Date: June 19, 1951
Creator: Blomeke, J. O. & Johnston, C. P.
Object Type: Report
System: The UNT Digital Library
Time Variation of Percent Distribution of Fission Activity in Bombarded Uranyl Nitrate (open access)

Time Variation of Percent Distribution of Fission Activity in Bombarded Uranyl Nitrate

"In this report are presented three figures which show how the relative activities (expressed as percentages of total activity) of the individual fission elements (produced by neutron bombardment of uranyl nitrate) vary with cooling time."
Date: May 19, 1943
Creator: Brady, E. L. & Coryell, Charles D.
Object Type: Report
System: The UNT Digital Library
Memorandum on Uranium Ore Processing (open access)

Memorandum on Uranium Ore Processing

The following memorandum discusses experiments and methods to recover uranium from Colorado-Utah sandstone and leaving the vanadium in the tails, improving filterability.
Date: November 19, 1943
Creator: Brimm, E. O. & Gailey, A. J.
Object Type: Report
System: The UNT Digital Library
Heat Transfer Characteristics of Graphite Plates with Hydrogen Coolant (open access)

Heat Transfer Characteristics of Graphite Plates with Hydrogen Coolant

"This note presents the results of a parametric study of heat-generating graphite plates with hydrogen coolant flowing through constant area passages. The heat generation within the graphite was assumed to have a distribution that allowed the centerline temperature of the plates to remain constant at 5000 F. The parametric variables were the mass flow rate per unit area, plate thickness, plate length, and passage hydraulic diameter. The machine calculations were coded by Ivan Cherry, T-1."
Date: October 19, 1955
Creator: Bussard, R. W. & Durham, F. P.
Object Type: Report
System: The UNT Digital Library
Attritioning of Temple Mountain Ore (open access)

Attritioning of Temple Mountain Ore

Abstract: The results of both dry and wet attritioning of Temple Mountain ore are presented. In order to obtain effective attritioning on this ore, the amphaltite must be removed before attritioning. With the asphaltite present, dry attritioning causes a build-up of asphaltite on the surface of sand grains, with consequent loss of uranium values. In wet attritioning, the asphaltite is not broken down or attritioned, because of its low specific gravity and resilience.
Date: June 19, 1953
Creator: Butler, J. N.; Stephens, R. W. & Ehrlinger, H. P., III
Object Type: Report
System: The UNT Digital Library
Feasibility of a Liquid Phase Chemonuclear Ozone Process (open access)

Feasibility of a Liquid Phase Chemonuclear Ozone Process

At the Chemonuclear Workshop held at Brookhaven National laboratory in November 1962 it was pointed out that the production of ozone from oxygen by a liquid phase fission fragment chemonuclear process appears to have reasonable economic potential. The maximum theoretical reaction yield for the formation of ozone from oxygen is a "G" value of 68 molecules for 100 ev based on heat of reaction data. The authors felt a "G" value of 15 to be reasonable for this study. the reactor system chosen has liquid oxygen as its moderator and the operating pressure and temperature were selected so as to allow boiling of the oxygen-ozone mixture. The total plant investment cost is estimated to be in the range of $100,000,000. Other system designs will be considered in the future.
Date: November 19, 1963
Creator: Cagnetta, J. P.; Goellner, D. & Steinberg, M.
Object Type: Report
System: The UNT Digital Library
International Geophysical Year Oceanographic Program of the Argentine Republic (open access)

International Geophysical Year Oceanographic Program of the Argentine Republic

The report is about the geophysical year oceanographic program of the Argentine Republic.
Date: July 19, 1967
Creator: Capurro, Luis R. A.
Object Type: Report
System: The UNT Digital Library
A Bond-Cell Method for Complex Molecules and Metals (open access)

A Bond-Cell Method for Complex Molecules and Metals

This technical report introduces "some approximations into the basic quantum mechanical theory" so that the theory of the covalent bond and the molecular orbital method "can be combined into one which will yield quantitative rather than qualitative binding energies and cohesive energies and also distinct energy levels and band structure." This approach will provide a common method "suitable to both solid state physicists and physical chemists, for calculating the energy levels in metals and complex molecules." This report also contains figures detailing the findings. (Quotations taken from introduction)
Date: June 19, 1962
Creator: Carlson, C. M.
Object Type: Report
System: The UNT Digital Library
Coulometric Determination of Phosphate (open access)

Coulometric Determination of Phosphate

The conventional volumetric micro-determination of phosphate depends upon the precipitation of phosphomolybdate, filtration and washing of the precipitate, and titration with standard base. The method is slow and tedious, subject to many interferences, and is not applicable to samples containing less than 1-2 mg of phosphate. Other weak acid anions, such as carbonate or acetate, interfere in the method. Strong acid anions, such as nitrate, sulfate, and chloride do not interfere.
Date: November 19, 1953
Creator: Carson, W. N., Jr. & Gile, H. S.
Object Type: Report
System: The UNT Digital Library
Geology and Ore Deposits of Yazzie Mesa, Apache County, Arizona with Recommendations for Exploration Drilling (open access)

Geology and Ore Deposits of Yazzie Mesa, Apache County, Arizona with Recommendations for Exploration Drilling

Abstract: Yazzie Mesa was examined in May 1951, by the writer, assisted by R. C. Cutter. The mesa shows one main channel deposit and three minor channels. The main channel appears to be a northern extension of a channel deposit being worked by the Vanadium Corporation of America at their Monument No. 2 mine. Two samples taken on the south outcrop of the main channel assayed 0.16% U308 over 4.5 feet and 0.80% U308 over 1 foot. The area is recommended for 10,000 feet of exploration drilling. It is not intended to recommend this footage as a separate contract unit as this report covers only a small part of an area in which drilling will be recommended in forthcoming reports.
Date: June 19, 1951
Creator: Chester, John W.
Object Type: Report
System: The UNT Digital Library
Expressions for Conversion Ratio in a Th-U²³⁵ Converter (open access)

Expressions for Conversion Ratio in a Th-U²³⁵ Converter

"This memo shall be an attempt to write down in a consistent manner some expressions for conversion ratio so that a comparison can be made with regard to a uniformly loaded core versus a flattered zone surrounded by an unloaded region. The discussion will be limited to the type of loading that is at present being considered for the reactor - a checkerboard array of MTR fuel elements and feed elements; the unloaded reactor will consist of fuel elements only."
Date: December 19, 1951
Creator: Cohen, E. Richard, 1922- & Benton, A.
Object Type: Report
System: The UNT Digital Library
Optimum Conditions for the "Hot Zone" Volatilization of TCl₄ (open access)

Optimum Conditions for the "Hot Zone" Volatilization of TCl₄

Abstract: "The data reported herein furnish a qualitative comparison of the rapidity of vaporization of TCl4 at various "hot zone" temperatures as well as a measure of the chlorine evolution attributed to its thermal decomposition. The presence of impurities in the TCl4 detracts from the significance of the reported chlorine evolution. The temperature recommended for rapid volatilization is 750 C at which TCl4 underwent thermal decomposition amounting to no more than 0.2% by weight."
Date: February 19, 1946
Creator: Crompton, C. E.; Calkins, V. P. & Larson, C. E.
Object Type: Report
System: The UNT Digital Library
The U + 4 - U02 ++ Couple in H2SO , and the U + S - u + 4 Couple in HCl (open access)

The U + 4 - U02 ++ Couple in H2SO , and the U + S - u + 4 Couple in HCl

Technical report: Measurements have been made on the equilibrium between Cu, Cu2+, U4+, and UO22+ in H2SO4 in an attempt to establish the value of the U4+ - UO22+ couple potential. The value of the formal potential for the U3+ - U4+ couple in 1N HCl at 0 degrees C was determined to be + 0.65 v.
Date: March 19, 1946
Creator: Cubicciotti, D.
Object Type: Report
System: The UNT Digital Library
The Biological Effects of heavy Cosmic Ray Particles (open access)

The Biological Effects of heavy Cosmic Ray Particles

Technical report investigates creating a microbeam of deuterons to simulate cosmic rays and the results of brain irradiation, irradiation of the eye, and irradiation of hair follicles of mice. The report's conclusion was that "astronauts exposed to heavy primary particles over a period of some weeks would be expected to develop gray hairs, but this is the only significant biological damage they would suffer."
Date: June 19, 1962
Creator: Curtis, Howard J. (Howard James), 1906-
Object Type: Report
System: The UNT Digital Library
Radiation and Atomic Rearrangement in Alloys (open access)

Radiation and Atomic Rearrangement in Alloys

This report examines radiation damage in solids, looking particularly at calculations and experiments that can provide quantitative predictions of damage.
Date: June 19, 1962
Creator: Damask, A. C.
Object Type: Report
System: The UNT Digital Library
Reconnaissance and preliminary drilling near Hite, San Juan County, Utah (open access)

Reconnaissance and preliminary drilling near Hite, San Juan County, Utah

An investigational drilling project carried out for geological information to determine if several claims near Hite, Utah, warranted an extensive drilling project.
Date: August 19, 1952
Creator: DeVergie, Paul C.
Object Type: Report
System: The UNT Digital Library
On the Structure of Sperm Whale Myoglobin. IV. Amino Acid Sequences of the Smaller Tryptic Peptides Containing Aromatic Residues (open access)

On the Structure of Sperm Whale Myoglobin. IV. Amino Acid Sequences of the Smaller Tryptic Peptides Containing Aromatic Residues

This technical report is part four in a series on the structure of sperm whale myoglobin. This report examines the amino acid sequences of the smaller tryptic peptides containing aromatic residues in order to describe in detail the sequences for peptides, tripeptides, and hexapeptides.
Date: June 19, 1962
Creator: Edmundson, A. B. & Hirs, C. H. W., (Christophe Henri Werner), 1923-
Object Type: Report
System: The UNT Digital Library
The Standard Molar Free Energy of Formation of MgCl2, CeCl3, ThCl4, and UCl3 Obtained by Solid State EMF Techniques (open access)

The Standard Molar Free Energy of Formation of MgCl2, CeCl3, ThCl4, and UCl3 Obtained by Solid State EMF Techniques

Technical report about a study in the use of galvanic cells using solid electrolytes to obtain thermodynamic data at high temperatures to study the free energy of formation of chlorides using Daniell cells where all components are solid. "The experimental techniques used are presented, including cell construction, preparation of anhydrous materials, and the handling of reactive metals and hydroscopic materials for galvanic cells." from the abstract. Results are presented for magnesium chloride, cerium chloride, uranium chloride, and thorium chloride, and are compared with other available data.
Date: June 19, 1962
Creator: Egan, J. J.; McCoy, W. & Bracker, J.
Object Type: Report
System: The UNT Digital Library
The Heat of Solution of Uranium Tetrachloride in Aqueous Perchloric Acid Solutions (open access)

The Heat of Solution of Uranium Tetrachloride in Aqueous Perchloric Acid Solutions

Abstract: "The heat of solution of UCl4 solid has been measured and found to change appreciably with changing concentration of H+ or ionic strength. The heat of hydrolysis of U+4 to form UOH+3 is probably of the order of +11 kcal per mole" (p. 1).
Date: August 19, 1947
Creator: Fontana, B. J.
Object Type: Report
System: The UNT Digital Library