Stepwise Calculation for the Determination of the Number of Transfer Units in Countercurrent Extraction Columns (open access)

Stepwise Calculation for the Determination of the Number of Transfer Units in Countercurrent Extraction Columns

Report discussing a method for the stepwise calculation of the number of transfer units utilized in a given solvent extraction operation. "Use of the method results in a very appreciable saving in time of calculation with an error of 1.5% for the runs tested. The error tends to become smaller with increasing total numbers of transfer units involved."
Date: September 12, 1949
Creator: Burns, W. A. & Eschbach, E. A.
System: The UNT Digital Library
Decomposition of Water at High Temperatures and Pressures Under Reactor Irradiation (open access)

Decomposition of Water at High Temperatures and Pressures Under Reactor Irradiation

Partial abstract: "The investigation of the high temperature and pressure dissociation of water under irradiation was undertaken by the Power Pile Division of Oak Ridge National Laboratory in an effort to determine the degree of importance of the phenomenon with respect to the design of a high temperature water-cooled power reactor. Theory and past experimentation indicate that net steady-state dissociation is determined by the rates of the dissociation and recombination reactions under the imposed conditions, the dissociation rate being essentially a function of flux and the recombination rate essentially a function of temperature" (p. 3).
Date: September 16, 1949
Creator: Fromm, L. W.
System: The UNT Digital Library
Investigation of Cementitious Materials for Possible Use in Concretes for Pile Shielding (open access)

Investigation of Cementitious Materials for Possible Use in Concretes for Pile Shielding

From introduction: "The present report reviews the work conducted on the development of new cements other than magnesium oxychloride during the period from August, 1943, to October 1949. As in the previous reports, the total water contents reported represent the hydrogen combined as water and that which may be combined as a compound other than water."
Date: September 1949
Creator: Synder, M. J.; Burkart, C. A. & Clegg, John W.
System: The UNT Digital Library
Preparation of Ductile Zirconium: Summary of Thermodynamic Data (open access)

Preparation of Ductile Zirconium: Summary of Thermodynamic Data

Abstract: A summary of thermodynamic calculations for zirconium halides is given. Data indicates that the iodide is the most promising of the halides for arc dissociation and that good recoveries of zirconium should be obtainable provided dissociation is carried out at reduced pressure.
Date: September 16, 1949
Creator: Findlay, G. R.
System: The UNT Digital Library
Optical Properties of Three Uranium Phosphates (open access)

Optical Properties of Three Uranium Phosphates

Abstract: "Crystal system, crystal habit, and principal refractive indices, of uranyl hydrogen phosphate tetrahydrate, uranyl ammonium phosphate trihydrate, and uranyl phosphate tetrahydrate are reported. A procedure for differentation of these three compounds using this data was developed."
Date: September 30, 1949
Creator: Harris, W. W. & Scott, Roberta H.
System: The UNT Digital Library
Progress Report on Carnotite Studies; Carbonate Processes : August 1949 (open access)

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: August 1949: Preparation of Ductile Zirconium (open access)

Progress Report: August 1949: Preparation of Ductile Zirconium

Report discussing progress made by the National Research Corporation in developing preparation of ductile zirconium for the month of August, 1949.
Date: September 9, 1949
Creator: DiPietro, W. O.; Findlay, G. R. & Mellen, G. L.
System: The UNT Digital Library
Recalculation of Critical Masses of U and Pu Water Tamped Solutions (open access)

Recalculation of Critical Masses of U and Pu Water Tamped Solutions

A report discussing a method of computing the critical mass of Uā‚‚ā‚ƒā‚… contained in a water solution confined to a spherical core and surrounded by an infinite water tamper, a modification of said method in which the effect of the resonance fission and absorption is taken into account, and physical constants required to calculate the critical mass using these methods.
Date: September 1, 1949
Creator: Greuling, Eugene
System: The UNT Digital Library
Asphalt as a Shielding Medium C-300 (open access)

Asphalt as a Shielding Medium C-300

The following document analyzes studies to test the use of asphalt as a fast neutron moderating substance to be incorporated as a part of a pile shield.
Date: September 26, 1949
Creator: Jaske, R. T.
System: The UNT Digital Library
Limits of Inflammability and Ignition Temperatures of Hexone in Air and in Other Gaseous Atmospheres (open access)

Limits of Inflammability and Ignition Temperatures of Hexone in Air and in Other Gaseous Atmospheres

The following report summarizes the data taken from a series of measurements on the combustion and ignition properties of hexone. The experiments were taken at the Bureau of Mines Central Experiment Station by their personnel, and the samples were given to them by KAPL and Hanford.
Date: September 9, 1949
Creator: Alter, H. Ward
System: The UNT Digital Library
Linear Amplifiers (open access)

Linear Amplifiers

Problems in the design of linear amplifiers are presented from the point of view of the radio engineer.
Date: September 7, 1949
Creator: Schultz, M. A.
System: The UNT Digital Library
Pyrolysis of Hexadecafluoroheptane (open access)

Pyrolysis of Hexadecafluoroheptane

"The studies of this report were made to indicate the thermal stability at elevated temperatures of fluorocarbons similar to the hexadecafluoroheptane" (p. 4).
Date: September 23, 1949
Creator: Walker, D. V. & Gibson, J. D.
System: The UNT Digital Library