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Separation of Azeotropes by Means of Diffusion through Porous Membranes

Description: Thesis discussing experiments to separate azeotropes into pure components testing eleven minimum boiling point azeotropic systems: (1) acetone-methanol, (2) carbon tetrachloride-ethyl acetate, (3) cyclohexane-ethanol, (4) benzene-isopropanol, (5) benzene-n-propanol, (6) benzene-cyclohexane, (7) benzene-methanol, (8) benzene-ethanol, (9) acetone-carbon, (10) isopropoanol-water, and (11) ethanol-water.
Date: October 1953
Creator: Hagerbaumer, Donald H.
Partner: UNT Libraries Government Documents Department

Scintillation Hand and Foot Counter

Description: From abstract: "The design of a scintillation counter for measuring radioactive contamination of hands and feet is described."
Date: January 27, 1953
Creator: Goldsworthy, William
Partner: UNT Libraries Government Documents Department

Revised Z Tables of the Rach Coefficients

Description: From introduction: "54 tables are given of the Z coefficients."
Date: May 28, 1953
Creator: Biedenharn, L. C.
Partner: UNT Libraries Government Documents Department

Radiation Damage in Boron Carbide

Description: From introduction: "Report describing the study of radiation damage in boron carbide with an integrated thermal neutron flux of 3x10^20 neutrons/cm² in the Materials Testing Reactor (MTR)."
Date: August 18, 1953
Creator: Tucker, Charles W., Jr. & Senio, Peter
Partner: UNT Libraries Government Documents Department

Practical Reactor Theory

Description: Derivation and basic formulas the physicist or nuclear engineer needs to do the necessary nuclear calculation for a reactor design.
Date: October 21, 1953
Creator: Webster, J. W.
Partner: UNT Libraries Government Documents Department

The Unified Soil Classification System

Description: The purpose of this manual is to describe and explain the use of the "Unified Soil Classification System" in order that identification of soil types will be on a common basis throughout the agencies using this system.
Date: March 1953
Creator: Waterways Experiment Station (U.S.)
Partner: UNT Libraries Government Documents Department

The Unified Soil Classification System, Appendix A: Characteristics of Soil Groups Pertaining to Embankments and Foundations

Description: Report describing various kinds of soils and their characteristics, for use in constructing embankments and foundations: "The major properties of a soil proposed for use in an embankment or foundation that are of concern to the design or construction engineer are its strength, permeability, and consolidation and compaction characteristics. Other features may be investigated for a specific problem, but in general some or all of the properties mentioned above are of primary importance in an earth embankment or foundation project of any magnitude" (p. 1).
Date: March 1953
Creator: Waterways Experiment Station (U.S.)
Partner: UNT Libraries Government Documents Department

Recommended Practices for Establishment and Maintenance of Turf

Description: "The intent of this report is to provide technical and practical information which will be of value to those responsible for preparation, review or accomplishment of specifications for the establishment of vegetative ground cover. [...] The report is concerned primarily with establishment of turf grasses in the continental United States. A brief discussion of maintenance practices is included as such practices have a direct bearing on the successful establishment of the desired ground cover" (p. 1).
Date: April 1953
Creator: Cale, E. B.
Partner: UNT Libraries Government Documents Department

The inhalation of radioactive materials as related to hand contamination

Description: Tests performed to determine the hazard associated with the inhalation of radioactive materials as the result of smoking with contaminated hands indicate that for dry uranium compounds adhering to the palmar surfaces of the hands, approximately 1.0% of the material may be transferred to a cigarette, and that of this approximately 0.2% may appear in the smoke which is inhaled. Most of the contamination originally placed in a cigarette was found in the ash, and only 11% of the material was not recovered following burning; approximately half of this loss may be attributed to normal losses inherent in the analytical process, the recovery efficiency for which was found by supplementary experiments to be 95%.
Date: September 15, 1953
Creator: Bailey, J.C. & Rohr, R.C.
Partner: UNT Libraries Government Documents Department

USE OF A WATER BOILER REACTOR AS A PRODUCTION TEST FACILITY

Description: The feasibility of the use of a water-boiler type reactor as a production test facility for making reactivity tests on various forms of uranium and uranium compounds was investigated. It is concluded that the reactor should be very useful for production testing of materials with the danger coefficient techniqus. A suggested production procedure is outlined. (auth)
Date: August 25, 1953
Creator: Remley, M.E.
Partner: UNT Libraries Government Documents Department

SEPARATION OF IRON AND COBALT ON SYNTHETIC RESIN

Description: In the separation of mixtures of radioactive iron and cobalt from neutron irradiated targets and in the removal of iron from cobalt targets for cyclotron production of radioiron, it is desirable to have a method superior to extraction from isopropyl ether in efficiency and ease of manipulation. Recent studies by Moore and Kraus on the separation of cobalt and nickel and on the behavior of iron in hydrochloric acid on Dowex-l resin in relation to the selective adsorption of chloride complexes of these elements have suggested the use of resin for the separation of iron and cobalt.
Date: August 5, 1953
Creator: Helwig, H. L.; Ashikawa, J. K.; Clokie, H. & Smith, E. R.
Partner: UNT Libraries Government Documents Department

Barrier Pillars in the Southern Field: Anthracite Region of Pennsylvania

Description: From Introduction: "The investigation of barrier pillars in the Southern field is part of the comprehensive study of the mine-water problem in the anthracite region of Pennsylvania by the Federal Bureau of Mines (1, 2, 5, 6, 7, 8, 9, 10, 11, 12, 15, 16, 18).
Date: 1953
Creator: Ash, S. H. (Simon Harry), b. 1889 & Kynor, H. D.
Partner: UNT Libraries Government Documents Department

Barrier Pillars in the Western Middle Field: Anthracite Region of Pennsylvania

Description: From Summary: "The investigation of barrier pillars in the Western Middle field is part of the comprehensive study of mine-water problem in the anthracite region of Pennsylvania by the Federal Bureau of Mines (1, 2, 5, 6, 7, 8, 9, 10, 11, 12, 15, 16)." From Introduction: "The purpose of this report is to give factual data on barrier pillars that will be helpful in solving the mine-water problem."
Date: 1953
Creator: Ash, S. H. (Simon Harry), b. 1889; Kennedy, D. O.; Link, H. B. & Romischer, W. M.
Partner: UNT Libraries Government Documents Department

Chemical Evolution and the Origin of Life

Description: The formation of more complex carbon compounds from simple ones through the action of radiation is used in an interpretation of the original formation of such compounds on earth. The relation of plants and animals and evolution of photosynthesis is discussed in the light of the participation of sulfur compounds in the metabolism of both group.
Date: March 10, 1953
Creator: Calvin, Melvin
Partner: UNT Libraries Government Documents Department

Evidence for Subshell at Z = 96

Description: The evidence is decisive that major nuclear shells are completed at 82 protons and 126 neutrons (both represented by the nuclide Pb{sup 208}) and these, along with major shells at 82 neutrons and certain lower nucleon numbers (N or Z = 20, 28, 50), are well explained by the strong spin orbit coupling model of Mayer and Haxel, Jensen, and Suess. This model suggests the filling of quantum states at certain intermediate points, and there is an accumulating amount of evidence that such 'sub shells' are also discernible, for example, at Z = 58 and Z = 64. The evidence from alpha radioactivity, both (1) the effect of the nuclear radius shrinkage on the relationship between energy and half-life and (2) the discontinuities in the plots of energy vs. mass number at constant Z, gives a striking indication of the closing of major shells at Z = 82 and N = 126. Application of these sensitive criteria as tests for the much smaller 'subshell' effects in the regions Z > 82 and N > 126 leads to some evidence for such a subshell at Z = 96 (curium).
Date: September 3, 1953
Creator: Seaborg, Glenn T.
Partner: UNT Libraries Government Documents Department

Elastic Scattering of 190 MEV Deuterons by Protons

Description: The elastic differential scattering cross section of 190 MeV deuterons by protons has been measured from 15 degrees to 170 degrees in the center of mass system. The cross sections were obtained by subtracting the carbon counts from those received with a polyethylene target. Part I presents a description of the experiments. Results are shown in Table IV and Fig. 3. Part II compares these results with those expected from theory by making use of a method developed by Chew. A summary of this comparison is given in Table VII.
Date: June 3, 1953
Creator: Chamberlain, Owen & Stern, Martin O.
Partner: UNT Libraries Government Documents Department

Observations on the Radiation Decomposition of Some C14 LabeledCompounds

Description: Varying amounts of radiation decomposition during storage in the dry form have been found in the cases of C{sup 14}-labeled valine, norvaline, norleucine, choline chloride, calcium glycolate and cholesterol. These data indicate that investigators using labeled organic compounds should make frequent checks of the purity of these compounds in order to exclude the possibility of the presence of decomposition products.
Date: February 27, 1953
Creator: Tolbert, B.M.; Adams, P.T.; Bennett, Edward L.; Hughes, Ann M.; Kirk, Martha R.; Lemmon, R.M. et al.
Partner: UNT Libraries Government Documents Department

Summary - Bevatron Research Meeting II

Description: The operational characteristics of the Cosmotron were reviewed in brief. Since a rather complete account of this machine is now available in the September 1953 issue of Rev. Sci. Inst., this summary will include only the more recent utilization of the machine as a research instrument.
Date: October 13, 1953
Creator: Chamberlain, Owen
Partner: UNT Libraries Government Documents Department

Quadrupole Focusing Lenses for Charged Particles

Description: A set of four strong focusing magnetic quadrupole lenses has been constructed and operated. Each lens consists of four air cooled electromagnets with pole tips having a hyperbolic cross section. Each lens is 4 in. long and has an aperture 2 in. in diameter. Measurements of the magnetic field demonstrate that the hyperbolic cross section satisfies the requirements of a constant magnetic field gradient very well. The technique of deflecting a current carrying flexible wire has been used to measure the trajectory of charged particles through the system of lenses. It has been observed that the strong focusing requirements are satisfied. The system of lenses was then used to focus 0.5 Mev protons, 20 Mev deuterons, and 40 Mev alpha particles. The parallel beam of 0.5 Mev protons was detected by observing the incandescence of a quartz plate while the protons were bombarding it. The focused beam was less than 1 mm in diameter. The astigmatic 20 Mev deuteron beam from the 60 in. cyclotron was increased in current density by a factor greater than 30.
Date: April 15, 1953
Creator: Cork, Bruce & Zajec, Emery
Partner: UNT Libraries Government Documents Department

The Path of Carbon in Photosynthesis. XVIII The Identification ofNucleotide Coenzymes

Description: The radioactive compounds to be observed when algae or green leaves are allowed to photosynthesize in C{sup 14}O{sub 2} for short periods are almost all phosphorylated derivatives of sugars. Of these, phosphate esters of trioses, sedoheptulose and fructose are the first to incorporate C{sup 14} followed closely by ribulose diphosphate, glucose-6-phosphate and a phosphate of mannose. It has been noted, in earlier papers of this series, that on radiograms of the products of photosynthesis, a dark area appeared in a position occupied by no known sugar phosphate and which gave glucose on acid hydrolysis or on treatment with a phosphatase preparation. This has hitherto been referred to as an 'unknown glucose phosphate'. It was found that this substance was more labile to acid than glucose-l-phosphate, itself a readily hydrolysable phosphate, and furthermore that other labile glucose derivatives were formed as intermediates during the acid hydrolysis. Accumulation of labeled glucose in this area precedes that in sucrose and suggests its synthetic relationship to sucrose phosphate synthesis.
Date: January 19, 1953
Creator: Buchanan, J.G.; Lynch, V.H.; Benson, A.A.; Calvin, M. & Bradley,D.F.
Partner: UNT Libraries Government Documents Department

Carbonizing Properties: Tennessee Coals from the Jellico Bed in Campbell County and the Sewanee Bed in Marion County

Description: From Introduction and Summary: "This report gives results of an investigation of the carbonizing properties of two Tennessee coals, one from Jellico bed Campbell County and the other from the Sewanee bed in Marion County."
Date: 1953
Creator: Reynolds, D. A.; Davis, J. D.; Birge, G. W.; Brewer, R. E.; Wolfson, D. E.; Ode, W. H. et al.
Partner: UNT Libraries Government Documents Department

Directing the Movement of Fish with Electricity

Description: From introduction: The Fish and Wildlife Service's Great Lakes Fishery Investigations has recently developed alternating current electrical devices which appear most promising as a means of controlling the parasitic sea lamprey in the Great Lakes.
Date: January 1953
Creator: McLain, Alberton L. & Nielsen, Willis L.
Partner: UNT Libraries Government Documents Department