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Investigation of the Electric Point and Gladstone Lead-Zinc Mines, Stevens County, Washington

Description: Report issued by the Bureau of Mines regarding studies conducted on lead-zinc mines in Stevens County, Washington. As stated in the introduction, "this report presents the factual data obtained from the trenching and sampling operations" (p. 1). This report includes tables, maps, and illustrations.
Date: January 1949
Creator: Cole, John W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Investigation of the Zinc-Lead Deposits in Horizons Below the Grand Falls Chert, Galena District, Cherokee County, Kansas

Description: Report issued by the Bureau of Mines over studies conducted on the zinc-lead deposits in Cherokee County, Kansas. As stated in the introduction, "the purpose of this report is to present the factual data derived from both the preliminary examination and the subsequent field work." (p. 3). This report includes tables, and maps.
Date: January 1949
Creator: Ruhl, Otto & Ballinger, Homer J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Investigation of the Sheep Creek Iron Deposits Meagher County, Montana

Description: Report issued by the Bureau of Mines regarding studies conducted on iron deposits located in Meagher County, Montana. As noted in the introduction, "details of geology, sampling, and beneficiation tests are presented in this report" (p. 1). This report includes tables, maps, and illustrations.
Date: January 1949
Creator: Reed, Glenn C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Drying Seed Cotton.

Description: Describes various methods of cotton-drying and the effectiveness of each.
Date: January 1949
Creator: Gerdes, Francis L. (Francis Leo), 1907-; Bennett, Charles A. (Charles Abel), b. 1889 & Martin, William J. (William Jules), 1910-
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department
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Nitrogen 12

Description: N{sup 12} is shown to have a half life of 12.5 {+-} 1 milliseconds, and a positron upper limit of 16.6 {+-} 0.2 Mev. It is produced by the reaction C{sup 12}(p,n)N{sup 12}, and has a threshold proton energy of 20.0 Mev. This indicates that N{sup 12} is within about 200 Kev of being unstable against proton emission. The mass of N{sup 12} is 12.0228 {+-} 0.00015, and the beta transition is allowed.
Date: January 19, 1949
Creator: Alvarez, Luis W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Corrosion tests of a heated wing utilizing an exhaust-gas-air mixture for ice prevention

Description: Report presenting an investigation of the exhaust of corrosive attack in an aluminum alloy wing employing an exhaust-gas-air mixture as a heating medium for ice prevention. There were no cases of structurally serious corrosion on either painted or plain specimens removed from the wing for detailed microscopic and metallurgic examination.
Date: January 1949
Creator: Holdaway, George H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Study by the Prandtl-Glauert method of compressibility effects and critical Mach number for ellipsoids of various aspect ratios and thickness ratios

Description: From Summary: "By the use of a form of the Prandtl-Glauert method that is valid for three-dimensional flow problems, the value of the maximum incremental velocity for compressible flow about thin ellipsoids at zero angle of attack is calculated as a function of the Mach number for various aspect ratios and thickness ratios. The critical Mach numbers (within the accuracy of the Prandtl-Glauert method) of the various ellipsoids are also determined. The results indicate an increase in critical Mac… more
Date: January 1949
Creator: Hess, Robert V. & Gardner, Clifford S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Investigation of Meteorological Conditions Associated with Aircraft Icing in Layer-Type Clouds for 1947-48 Winter

Description: Rotating-cylinder measurements of the icing conditions encountered in flight during the winter of 1947-48 are presented. Liquid water content, drop size, and temperature data are shown to be consistent with previously measured conditions and with proposed maximum icing conditions in supercooled layer-type clouds. Cumulative frequency graphs of meteorological parameters indicate the frequency with which various icing conditions have been encountered in the Great Lakes area and surrounding states. more
Date: January 1949
Creator: Kline, Dwight B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Gust-tunnel investigation of a wing model with semichord line swept back 30 degrees

Description: Report presenting tests in the gust tunnel of the 30 degree sweptback wing model to provide information on some of the problems encountered in the prediction of gust loads for airplanes incorporating swept wings. The results indicate that within the scope of the data and the values of gradient distance investigated, the maximum acceleration increment depends on the slope of the lift curve of an equivalent straight wing multiplied by the cosine of the angle of sweep and on the effect of gradual … more
Date: January 1949
Creator: Reisert, Thomas D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Application of Radial-Equilibrium Condition to Axial-Flow Compressor and Turbine Design

Description: Note presenting some of the basic general equations governing the three-dimensional compressible flow of gas through a compressor or a turbine in terms of velocity components, total enthalpy, and entropy. The equations are applied to investigate the maximum compatible number of the radial variations of the gas properties between successive blade rows that a designer is free to specify.
Date: January 1949
Creator: Wu, Chung-Hua & Wolfenstein, Lincoln
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Effect of hull length-beam ratio on the hydrodynamic characteristics of flying boats in waves

Description: Report presenting an investigation of the take-off and landing behavior in waves of models of a hypothetical flying boat with hull length-beam ratios of 6 and 15. The flying boat had a design gross weight of 75,000 pounds, a wing loading of 41.1 pounds per square foot, and a power loading of 11.5 pounds per brake horsepower for take-off. Results regarding the landing behavior, spray characteristics, and taxiing and take-off behavior are provided.
Date: January 1949
Creator: Carter, Arthur W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Comparison of the structural efficiency of panels having straight-web and curved-web Y-section stiffeners

Description: Report presenting comparisons of the structural efficiency of panels with straight-web and curved-web Y-section stiffeners. In the high-stress region in which failure is at least in part associated with local buckling, panels with curved-web Y-section stiffeners have higher structural efficiencies than panels with straight-web Y-section stiffeners, which is evidenced by higher average stresses at failure, smaller stiffener heights, or wider average spacing of rivet lines.
Date: January 1949
Creator: Dow, Norris F. & Hickman, William A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Events of importance for week ending January 26, 1949

Description: Redox operations and waste metal recovery are reported. Construction in the 100-H, 100-DR, P-10 area pile areas and in the 234-5, 241-BY waste storage, and redox areas, process areas and Richland village are described. Visitor information is given. And construction progress at Schenectady is reported.
Date: January 28, 1949
Creator: Schlemmer, F. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Analytical Services - Pile Area Laboratories

Description: This is a report on Analytical Services of the Pile Area Laboratories at Hanford. Pertinent facts are listed regarding the analytical services currently provided by the Analytical Section in the pile areas. The work of the Analytical Section in the pile areas may be classified into five categories as follows: Analysis of pile process water, analysis of power plant (boiler) waters, analysis of drinking water, analysis of columbia (non-process) and Yakima River water, and preparation of reagents … more
Date: January 28, 1949
Creator: Curtis, R. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Progress Report No. 69. Dec. 15, 1948 to Jan. 15, 1949

Description: This is the progress report for the University of California, Radiation Laboratory for December 15, 1948-January 15, 1949. It discusses the following: (1) Bevatron; (2) 184-inch Cyclotron Program; (3) 60-inch Cyclotron Program; (4) Synchrotron Operation; (5) Linear Accelerator and Van de Graaff Operation; (6) Experimental Physics; (7) Theoretical Physics, (8) Isotope Separation; (9) Chemistry Departments; (10) Medical Physics; and (11) Health Physics and Chemistry.
Date: January 30, 1949
Creator: Authors, Various
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Supplemental Technical Report on an Improved Process for the Manufacture of High Purity Calcium, Period Covered November 10, 1948 to January 31, 1949

Description: Abstract. Experimental work was carried out to improve material conversion efficiency and to reduce handling costs inherent in the present process for production of high purity calcium. Charges up to 54 pounds were handled successfully in the equipment available. Material losses were reduced and more complete removal of alkali and alkaline earth metals was effected by controlled pressures of inert gas and by melting under positive pressure of Argon.
Date: January 31, 1949
Creator: Brown, H. & Woodberry, P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Southwest Retort, Volume 1, Number 4, January 1949

Description: This publication of the Dallas-Fort Worth Section of the American Chemical Society includes information about research, prominent scientist, organizational business, and various other stories of interest to the community. Published monthly during long academic semesters.
Date: January 1949
Creator: American Chemical Society. Dallas/Fort Worth Section.
Item Type: Refine your search to only Journal/Magazine/Newsletter
Partner: UNT Libraries
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