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National Motor-Gasoline Survey: Summer 1947

Description: Report issued by the Bureau of Mines on the motor-fuels sold during the summer months of 1947. The types of fuels sold, and characteristics of the fuel samples obtained are listed. This report includes tables, and graphs.
Date: January 1948
Creator: Blade, O. C.
Partner: UNT Libraries Government Documents Department
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Georgia Iron Deposits, Cherokee, Bartow, Floyd, and Polk Counties (In Two Parts): Part II

Description: Report issued by the Bureau of Mines over exploration of iron ore deposits in four counties in Georgia. The work accomplished during the summer of 1945 in these deposits is presented. The report describes physical features, geology, and characteristics of the ore samples collected. This report includes tables, maps, and illustrations.
Date: January 1948
Creator: Robertson, Almon F.
Partner: UNT Libraries Government Documents Department
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Methyl Methacrylate Casting Resin

Description: Abstract: "This report describes work done to improve the casting characteristics of methyl methacrylete resin under CMR-6-18 authorization. The experimental program was initiated with the objectives of decreasing casting time, bubble formation and shrinkage. It has been found that by use of a common solvent for monomer and polymer concentration in monomer can be attained greater than any previously reported in preparation of a methacrylate casting resign. Incorporation of this greater amount o… more
Date: January 8, 1948
Creator: Church, J. S. & Tyler, H. R.
Partner: UNT Libraries Government Documents Department
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Nuclear Reactor Project Progress Report, January 1948

Description: This report is a progress report detailing operations and ongoing projects at the Brookhaven National Laboratory. The report describes new developments with buildings and progress regarding ongoing experiments. The report includes photographs showing progress in the construction of the reactor and other images and figures that accompany the descriptions of projects.
Date: January 1, 1948
Creator: Borst, L. B. & Fox, Marvin
Partner: UNT Libraries Government Documents Department
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Safety for the Household

Description: Introduction: The purpose of this circular is (a) to emphasize the seriousness of certain risks to life and property frequently occurring in or about the home, (b) to give simple methods of care and caution against such hazards, and (c) to stimulate interest in public measures directed toward safety for household and community.
Date: January 12, 1948
Creator: Owen, S. J.
Partner: UNT Libraries Government Documents Department
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The Metabolism of Curium in the RAT

Description: The heaviest of the known elements is curium, which was recently discovered by Seaborg and his associates. This new element can be produced by the alpha particle transmutation of plutonium by the following reaction: {sub 94}Pu{sup 239} + {sub 2}He{sup 4} {yields} {sub 96}Cm{sup 242} + {sub 0}N{sup 1} This isotope of curium is radioactive and decays by the emission of an alpha particle to form plutonium 238 which, in turn, is also radioactive. Curium 242 has a half-life of 150 days, and its radi… more
Date: January 15, 1948
Creator: Hamilton, J.; Scott, K. & Axelrod, D.
Partner: UNT Libraries Government Documents Department
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Neutron Deficient Isotopes of Tellurium and Antimony

Description: While investigating the relative yields for the many reactions resulting from the irradiation of antimony with 200-Mev deuterons in the Berkeley 184-inch cyclotron several previously unreported isotopes of tellurium and antimony were encountered. The tellurium fraction when followed on a thin mica window counter could be resolved into half-life periods of 2.5 hrs, 6.0 days and a small amount of a long-lived component. The 2.5 hour period has not been further characterized with respect to mass n… more
Date: January 1, 1948
Creator: Lindner, M. & Perlman, I.
Partner: UNT Libraries Government Documents Department
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Loss of Radioactivity from Barium Carbonate Samples

Description: The exchange loss of radioactivity from solid samplos of barium carbonate through the agency of carbonic acid and its ions has been investigated under a variety of conditions. It is concluded that the losses observed are greatly dependent upon the method of sample preparation, in particular the nature or any heat treatment which the sample materials undergo.
Date: January 9, 1948
Creator: Yankwich, Peter E.
Partner: UNT Libraries Government Documents Department
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THE RELATION OF BACKSCATTERING TO SELF-ABSORPTION

Description: The effects of backscattering upon self-absorption correction curves are demonstrated. Data are given for the backscattering powers of several substances for the beta radiations from C{sup 14}, and for se1f-absorption of samples of barium carbonate and wax, containing C{sup 14}, mounted on aluminum.
Date: January 1, 1948
Creator: Yankwich, Peter E. & Weigl, John.
Partner: UNT Libraries Government Documents Department
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Monthly Progress Report No. 57 for January 1948

Description: This report gives a short summary of the work done in the following fields for the month of January 1948: (1) 184-inch cyclotron; (2) 60-inch cyclotron; (3) synchrotron; (4) linear accelerator; (5) experimental physics; (6) theoretical physics; (7) isotope research; (8) chemistry; (9) medical physics; and (10) health physics and chemistry.
Date: January 1, 1948
Creator: Authors, Various
Partner: UNT Libraries Government Documents Department
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The Founding of the Brookhaven National Laboratory - Associated Universities, Inc.

Description: At the end of the war it became apparent that the teamwork of government and scientific institutions, which had been so effective in wartime work, must somehow be perpetuated in order to insure the continued progress of nuclear science in peace time. The enormous expense of the tools needed to pursue the next steps in this research -- nuclear reactors and high energy accelerators -- and the shortage of scientifically trained personnel pointed towards the establishment of a cooperative laborator… more
Date: January 15, 1948
Creator: LABORATORY, BROOKHAVEN NATIONAL
Partner: UNT Libraries Government Documents Department
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Chambers Works Process for the Manufacture of Fluorine in East Area Carbon Anode Cells (M.W.38.0)

Description: Historical: This process is based on experimental work done in Jackson Laboratory, Send Works, Blue Products, and East Area. It supersedes the Tentative Chambers Works Process for the Manufacture of Fluorine Using Carbon Anode Units, dated December 2, 1943.
Date: January 18, 1948
Creator: E. I. du Pont de Nemours & Company
Partner: UNT Libraries Government Documents Department
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The Determination of Uranium in K-65 (Gangue Lead Cake)

Description: The major problems in this determination are the extraction of X from the sample and the isolation of the extracted X. The application of various analytical methods to these two problems indicates that the current method of analysis yields values which may be as much as 15% high. The current method of analysis is subject to positive and negative errors. The magnitude of these errors varies with techniques and with sample composition. The recommend method, although longer, is believed to be free… more
Date: January 1, 1948
Creator: Stevenson, J.W.
Partner: UNT Libraries Government Documents Department
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Preparation of Radioiron of High Specific Activity

Description: From abstract: "A comparison has been made of methods for producing Fe59 of higher specific activity than that obtainable by irradiating natural iron in the Clinton pile. Five processes have been considered, (1) irradiation of natural iron in the Hanford piles, (2) irradiation of enriched F58 in the Clinton and Hanford piles, (3) Szilard-Chalmers enrichment using ferrocyanides in the Clinton pile, (4) collection of recoils in a phase separable from the bulk of the iron, and (5) the Co59 (n,p) F… more
Date: January 28, 1948
Creator: Swartout, J. A. & Rice, H. M.
Partner: UNT Libraries Government Documents Department
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An Improved Photoelastic Method for Determining Plane Stresses

Description: Note presenting an improved photoelastic method that has been developed for determining stress concentrations which occur in nonisotropic materials under load. Drucker's method has been extended by means of an additional oblique photograph, and simpler equations for relating fringe order to principal stresses were obtained. The conclusion indicates that the improved oblique method of photoelastic analysis yields reasonably accurate results over regions of the photoelastic model which are not su… more
Date: January 1948
Creator: Norris, C. B. & Voss, A. W.
Partner: UNT Libraries Government Documents Department
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Stresses in and general instability of monocoque cylinders with cutouts 5: calculation of the stresses in cylinders with side cutout

Description: "Stresses were calculated by a numerical method in three reinforced monocoque cylinders subjected to pure bending. The cylinders were of circular cross section and were reinforced with 8 rings and either 8 or 16 stringers. There was a cutout on one side of each cylinder located symmetrically to the neutral plane and extending over 45, 90, or 135 degrees" (p. 1).
Date: January 1948
Creator: Hoff, N. J. & Klein, Bertram
Partner: UNT Libraries Government Documents Department
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On Similarity Rules for Transonic Flows

Description: Note presenting a method used by Tsien to derive similarity rules for hypersonic flows as utilized to derive von Karman's similarity rules for transonic flows.
Date: January 1948
Creator: Kaplan, Carl
Partner: UNT Libraries Government Documents Department
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A method of cycle analysis for aircraft gas-turbine power plants driving propellers

Description: Report presenting an investigation to develop a convenient and accurate method for analyzing gas-turbine cycles to aid in predicting the performance of propeller-driving power plants and the state of the gas at various stations within the power plant. The method takes into account the effects of ram, altitude, variation of specific heats, increase in weight flow due to the addition of fuel, and thrusts from the exhaust jet.
Date: January 1948
Creator: English, Robert E. & Hauser, Cavour H.
Partner: UNT Libraries Government Documents Department
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Charts for the Analysis of One-Dimensional Steady Compressible Flow

Description: Report presenting charts of dimensionless parameters to facilitate the computation involved in the solution of equations of one-dimensional steady flow of a compressible field. The charts can be used for analyses involving constant or variable specific heats in the subsonic and supersonic ranges.
Date: January 1948
Creator: Turner, L. Richard; Addie, Albert N. & Zimmerman, Richard H.
Partner: UNT Libraries Government Documents Department
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Comparison of computed performance of composite power plants using 18-cylinder aircraft engines with 62 degrees and 40 degrees valve overlap

Description: Report presenting calculations based on experimental data for 18-cylinder, radial aircraft engines with different nominal valve overlaps to compare the performance of two composite power plants using the engines. The composite unit included a steady-flow turbine and an auxiliary supercharger mounted on a common shaft and geared to the engine crankshaft. Results regarding the reciprocating-engine component, composite engine, effect of turbine characteristics, and performance with afterburning ar… more
Date: January 1948
Creator: Kaufman, Samuel J. & Boman, David S.
Partner: UNT Libraries Government Documents Department
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On the Interpretation of Combined Torsion and Tension Tests of Thin-Wall Tubes

Description: "General ways of testing thin-wall tubes under combined tension and torsion as a means of checking the various theories of plasticity are discussed. Suggestions also are given for the interpretation of the tests" (p. 1).
Date: January 1948
Creator: Prager, W.
Partner: UNT Libraries Government Documents Department
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