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Cle Elum Iron-Nickel Deposits, Kittitas County, Washington

Description: Report issued by the Bureau of Mines over studies conducted on the iron-nickel deposits of Kittitas County, Washington. As stated in the introduction, "the investigation consisted of road building, diamond drilling, sampling, and metallurgical tests" (p. 1). This report includes tables and maps.
Date: February 1948
Creator: Zoldok, S. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Explosions of Ammonium Nitrate Fertilizer on Board the S. S. Grandcamp and S. S. High Flyer at Texas City, Texas, April 16, 17, 1947

Description: Report issued by the Bureau of Mines regarding explosions that took place on two separate cargo ships in 1947. The observations, data collected, and testing done during investigations of the disaster are presented. This report includes photographs, and illustrations.
Date: February 1948
Creator: Kintz, G. M.; Jones, G. W. & Carpenter, Charles B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Geophysical Investigation of Manganiferous Iron Deposits, Boston Hill, Grant County, New Mexico

Description: Report issued by the Bureau of Mines over geophysical studies conducted on iron deposits of Grant County, New Mexico. Methods and equipment used during the studies are presented. The results are also presented and discussed. This report includes tables, maps, and illustrations.
Date: February 1948
Creator: Joesting, H. R.; Bacon, L. O. & Getz, J. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Monthly Progress Report No. 58 for February 1948

Description: This is a monthly progress report on the following programs: (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: February 1, 1948
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Diameter Measurements of Slugs Before and After Prolonged Heat Treatment

Description: Abstract: "Diameter measurements of 25 slugs taken before and after a prolonged heat treatment showed no evidence of differences that would indicate blistering. The average effects of the treatment was different for the various slugs. Large differences in diameter measurements between slugs. Large differences in diameter between slugs and significant differences between indices and positions were found."
Date: February 16, 1948
Creator: Bennett, Carl A. & Lane, J. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Correlation of Chemical Analyses on Graphite Bars and Test Pile Results

Description: From abstract: "The chemical analyses of graphite test bars obtained from National Carbon Company and the analyses performed by the Hanford Works Laboratories Division do not correlate significantly with the test pile results, nor do the chemical analyses obtained from National Carbon Company agree with those done in the Handford Works Laboratories. Chemical results obtained at Hanford on samples taken lengthwise from individual bars correlated significantly with the individual test pile result… more
Date: February 5, 1948
Creator: Lane, J. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Directive No. HEW-77

Description: As work on the Columbia Basin irrigation project on the Columbia River is in the initial stages, the question of the effect of this project of the mineral content of the Columbia River has been raised. As an increase in dissolved mineral matter would seem to be likely, it was felt that quantitative estimate of the magnitude of this increase would be important, specifically with reference to the retaining of the demineralization plant at 100-D Area. Accordingly, a study has been made of the prob… more
Date: February 6, 1948
Creator: Lail, G. G. & Lauder, D. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Tabulation or Ore Reserves and Past Production for the Uranium-Vanadium Region of Colorado, Utah, New Mexico, and Arizona

Description: The tabulations on these pages include all of the known areas in Colorado, Utah, New Mexico, and Arizona having economically important uranium-vanadium deposits of the type which are generally referred to by the terms roscoe-lite and/or carnotite. Though similar deposits are known to exist in other areas they are to be viewed as being little more than mineralogical curiosities.
Date: February 16, 1948
Creator: Fetzer, Wallace G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Degradation of Isotopic Lactate and Acetate

Description: A scheme of glucose degradation has been validated by the use of intermediates of known isotopic composition. In this scheme: glucose {yields} lactic acid {yields} CO{sub 2} (C-3,4) + acetic acid {yields} CO{sub 2} (C-2,5) + acetone {yields} iodoform (C-1,6) + acetate (C-1,6; 2,5), it was found that (a) in the oxidation of lactic acid, approximately 4.7% of the acetic acid was oxidized to CO{sub 2}; and (b) under the conditions prescribed, BaCO{sub 3} from the degradation of Ba acetate containe… more
Date: February 24, 1948
Creator: Aronoff, S.; Haas, V. A. & Fries, B. A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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The Estimation of Heats of Formation

Description: The procedure for estimation of heats of formation of compounds is illustrated by discussion of compounds of several of the elements of the actinide series. The procedure is particularly suited for lanthanide and actinide elements because of the similarity of the ionic radii and types of bonding.
Date: February 2, 1948
Creator: Brewer, Leo
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Medical and Health Divisions Quarterly Report October 1947 To Jan. 1948

Description: This quarterly report discusses the following topics: (1) the metabolic properties of plutonium and allied materials; (2) biological studies of radiation effects; (3) biological effects of radiation from external and internal zones; and (4) health chemistry.
Date: February 4, 1948
Creator: Authors, Various
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Research Progress Meeting of February 19, 1948

Description: Much of the cloud chamber work has been directed toward obtaining the angular distribution of protons bombarded by deuterons from the 184-inch cyclotron. The observations have been restricted to those protons arising from neutrons of energy greater than 65 Mev. The cloud chamber used for this work is of 16-inch diruneter and employs a magnetic field of 14000 gauss. The chamber is filled with hydrogen at a pressure of 1/2 atmosphere; the vapor used is water and alchohol. Nearly 800 proton tracks… more
Date: February 19, 1948
Creator: Wakerling, R.K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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On Closed Shells in Nuclei

Description: It has been suggested in the past that special numbers of neutrons or protons in the nucleus form a particularly stable configuration.{sup1} The complete evidence for this has never been summarized, nor is it generally recognized how convincing this evidence is. That 20 neutrons or protons (Ca{sup40}) form a closed shell is predicted by the Hartree model. A number of calculations support this fact.{sup2} These considerations will not be repeated here. In this paper, the experimental facts indic… more
Date: February 1, 1948
Creator: Mayer, M. G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Activator, Volume 4, Number 5, February 1948

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: February 1948
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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A Generalized Theoretical and Experimental Investigation of the Motions and Hydrodynamic Loads Experienced by V-Bottom Seaplanes During Step-Landing Impacts

Description: Note presenting a theoretical investigation made of the motions and hydrodynamic loads experienced by V-bottom seaplanes during the course of a step-landing impact. In the analysis, the primary flow about the immersed portion of a keeled float or hull is considered to occur in transverse flow planes and the virtual-mass concept is applied to calculate the reaction of the water to the motion of the seaplane. The results are presented in the form of dimensionless curves which may be used to predi… more
Date: February 1948
Creator: Milwitzky, Benjamin
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A rapid compression machine suitable for studying short ignition delays

Description: Report presenting an examination of a machine developed to study the ignition delay of fuels by means of a rapid adiabatic compression. The essential features of the machine are that the compression is completed in about 0.006 second, provision is made for obtaining simultaneous records of piston motion and cylinder pressure, and the combustion cylinder is unlubricated. An extensive explanation of the components of the machine and its applicability to different scenarios are provided.
Date: February 1948
Creator: Leary, W. A.; Taylor, E. S.; Taylor, C. F. & Jovellanos, J. U.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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De-Icing Effectiveness of External Electric Heaters for Propeller Blades

Description: Note presenting an investigation in the icing research tunnel to determine the icing protection provided by external rubber-clad blade heaters at several icing, heating, and propeller operating conditions. Data are presented to show the effect of propeller speed, ambient-air temperature, liquid-water concentration, heating-power density, duration of heating, and total cycle times on the power requirements and de-icing performance of the blade heaters.
Date: February 1948
Creator: Lewis, James P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Fatigue strength and related characteristics of aircraft joints 2: fatigue characteristics of sheet and riveted joints of 0.040-inch 24S-T, 75S-T, and R303-T275 aluminum alloys

Description: Report presenting the results of a series of fatigue testing of aluminum-alloy sheet materials and simple riveted joints. The materials tested were 24S-T Alclad, 24S-T bare, 75S-T Alclad, R303-T275 clad, and R303-T275 bare.
Date: February 1948
Creator: Russell, H. W.; Jackson, L. R.; Grover, H. J. & Beaver, W. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Strength of thin-web beams with transverse load applied at an intermediate upright

Description: "Results are presented of tests of several 24S-T aluminum-alloy thin-web beams with transverse load applied at the end of an intermediate upright. A method of computing stresses and predicting failures in these directly loaded uprights is presented. A comparison between the experimental and calculated results is given" (p. 1).
Date: February 1948
Creator: Levin, L. Ross
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Stresses in and general instability of monocoque cylinders with cutouts 4: pure bending tests of cylinders with side cutout

Description: Report describing pure bending testing of nine 24-ST Alclad cylinders of 20-inch diameter, 39-inch to 90-inch length, and 0.012-inch wall thickness, reinforced with 24-ST aluminum-alloy stringers and rings. All nine cylinders tested failed in general instability. Results regarding the nonlinearity of normal strain distribution, strain in sheet covering, equilibrium of forces and moments, strain variation along stringers, strain trajectories, variation of strain with applied movement, strain fac… more
Date: February 1948
Creator: Hoff, N. J.; Boley, Bruno A. & Viggiano, Louis R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Structural Evaluation of an Extruded Magnesium-Alloy T-Stiffened Panel

Description: Note presenting compressive tests made of six different lengths of a ZK60A magnesium-alloy flat panel with skin and longitudinal T-section stiffeners extruded as one integral unit. The results indicated that the extruded panel had structural characteristics somewhere between those for 24S-T and 75S-T aluminum-alloy construction, but required far fewer rivets to assemble than those panels.
Date: February 1948
Creator: Dow, Norris F. & Hickman, William A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

De-Icing Effectiveness of External Electric Heaters for Propeller Blades

Description: Note presenting an investigation in the icing research tunnel to determine the icing protection provided by external rubber-clad blade heaters at several icing, heating, and propeller operating conditions. Data are presented to show the effect of propeller speed, ambient-air temperature, liquid-water concentration, heating-power density, duration of heating, and total cycle times on the power requirements and de-icing performance of the blade heaters.
Date: February 1948
Creator: Lewis, James P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The effect of tip modification and thermal de-icing air flow on propeller performance as determined from wind-tunnel tests

Description: Report presenting results of the effects on propeller efficiency of thermal de-icing of airplane propellers by use of internal flow through hollow blades. Wind tunnel tests were made of a propeller with blades embodying tip orifices.
Date: February 1948
Creator: Gray, W. H. & Davidson, R. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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