Technical Report Archive & Image Library (TRAIL) - 14 Matching Results

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Behavior of Bond Under Dynamic Loading

Description: The objectives of this research program are to determine bond strength under dynamic loading, to compare bond strengths under static and dynamic loading, and to test the adequacy of ACI Building Code bond requirements for structural elements subjected to blast loads. The tests have shown that local static bond strengths may be as high as 0.75 fc and that under dynamic loading this strength increases to fc. For all practical lengths of embedment of bars, steel failure is to be expected both unde… more
Date: September 1959
Creator: Liepins, A. A. (Artis A.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A Cloud Chamber Study of the Secondary Particles from Locally Produced Penetrating Showers

Description: The present experiment was undertaken as an attempt to throw more light on the decay processes that had been observed prior to the summer of 1952, as well as to investigate any new decay processes that might manifest themselves. The source of high energy primary particles was to be the cosmic ray beam, so a detector of locally produced high energy penetration showers was used. In order to be able to detect effectively low energy photons and low energy secondaries from particles reaching the end… more
Date: September 1955
Creator: Harmon, Norman Frederick
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The Grüneisen Parameter for an Einstein Solid and Under Finite Strain

Description: The Grüneisen constant, as evaluated from the equation of state, is obtained for an Einstein solid. the presence of a state of finite hydrostatic pressure is taken into account explicitly by means of Murnaghan's theory of finite strain, to obtain the Grüneisen parameter's on the Debye and Einstein models. Results are identical in the two cases with the corresponding values obtained without use of the formal theory of finite strain.
Date: September 26, 1955
Creator: Gilvarry, J. J. (John James), 1917-
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Ideal Gas Thermodynamic Properties of Detonation Products

Description: The ideal gas thermodynamic functions were computed at various temperatures in the temperature range from 300 degree to 6000 degree Kelvin for some of the molecular species of interest in detonation performance calculations. The molecular species are composed of the atoms chosen from among the following: Al, B, Be, C, Cl, F, H, Li, Mg, N, and O. The method of least squares was used to determine the parameters of a cubic equation which expresses the dependence of these thermodynamic functions on… more
Date: September 1959
Creator: Mader, Charles L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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An Investigation of Scaling of Zirconium at Elevated Temperatures Quarterly Status Report no. 9.June 2, 1955 to Sept. 2, 1955

Description: To obtain a better understanding of the mechanism involved in scaling behavior of zirconium, kinetic studies were made of the weight pickup in air after the following pretreatments; (1) exposure to oxygen or nitrogen, (2) exposure to air, oxygen or nitrogen and removal of the resulting surface compounds.
Date: September 6, 1955
Creator: Green, H. M.; Tuchschmid, Heinrich Eugen, 1922- & Baldwin, W. M., Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Note on the Numerical Evaluation of Integrals of the Form anti l*SUB infinity/*SUP infinity/ f(x) *phi/(x) dx, with Particular Reference to the Determination of the Expectation of a Function of a Normally Distributed Random Variable

Description: This note is concerned with the numerical integration of the integrals of the form anti l*SUB infinity/*SUP infinity/ f(x) *phi/(x) dx is "smooth."
Date: September 1, 1953
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Occurrence of Technetium in Nature : Final Report for the Period November 1, 1954 to August 31, 1955

Description: Twelve neutron activation analyses for naturally occurring technetium-98 were performed. Positive results were obtained in ten cases. Precautions were taken to avoid interference by molybdenum and technetium-99. the cross section for the reaction [formula] as found to be equal to 4 +- 2 mb for the neutron spectrum of the vertical thimbles of the Argonne CP-5 reactor. The chemical state of molybdenum (VI) in basic solution was studied by an anion-exchange technique. Evidence was obtained for the… more
Date: September 1, 1955
Creator: Anders, Edward, 1926-
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Practical Methods for the Reduction of Strain Gage Data

Description: The error that results when it is attempted to evaluate stress from a reading taken on a single element SR-4 strain gage in a biaxial stress field is discussed. A method is presented for relating SR-4 rosette strain gage readings directly to the biaxial stress state without the necessity of first converting strain gage readings to true strains. Correction formulas are presented for use when single element SR-4 gages are used as rosette elements or as stress gages.
Date: September 7, 1955
Creator: Dove, Richard C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A Preliminary Study of the Potential to Kinetic Energy Conversion Process in the Stratosphere

Description: The potential to kinetic energy conversion process in the lower stratosphere is evaluated using adiabatically derived vertical velocities for the North American region for a five-day period. Preliminary results suggest the possibility that on the average the kinetic energy of stratospheric motions may not result from a conversion of potential energy within the stratosphere. The further implication is that stratospheric motions are mechanically driven by the motions in the adjacent layers of the… more
Date: September 15, 1959
Creator: White, Robert M., 1923-2015 & Nolan, George F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Pressurized Loop membrane Demineralizer Tests : Final Report [for] January-June 1953

Description: A membrane demineralizer has been tested in a pressurized loop. The loop water resistivity was maintained in the 1-2 megohm range by ionized solid transfer in the demineralizer. The size and power requirement of the unit tested per gpm flow through the unit, were 2.3 cu ft and 100 watts. In view of the fact that present designed could reduce the size and required maintenance, further studies may be warranted.
Date: September 15, 1954
Creator: Rosenberg, N. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Radiation Damage to Vacuum Chamber Walls

Description: "The problem of radiation derange to the walls of two types of vacuum chamber for the 6 Bev Cambridge Electron Accelerator was studied. Radiation damage may arise from the synchrotron radiation and from electrons which are not accepted at injection. The synchrotron radiation produces a large amount of secondary x radiation which is isotropic, and therefore complicates the arrangement of internal shielding. The 20 Mev electrons from the lines cannot be attenuated by shielding. It is concluded th… more
Date: September 10, 1957
Creator: Stearns, Brenton
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Research on Uranium-Base Alloys. Part I, Transformation Kinetics of Uranium-Base Alloys, Final Report, November 15, 1952 - August 31, 1955

Description: Information concerning the transformation kinetics of the gamma solid solution of uranium-base alloys is important. Accordingly, the metastability of the gamma phase was investigated for nine uranium-rich alloys of the U-Mo-Pt, U-Mo-Nb, and U-Nb systems. Samples were encapsulated in Vycor bulbs, solutions treated at 1000 decrees or 1050 degrees C, quenched to and annealed at temperatures between 600 degrees and 300 degrees C. Techniques employed to follow transformation included metallography, … more
Date: September 30, 1955
Creator: Van Thyne, R. J. & McPherson, F. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Semi-Annual Progress Report, September 30, 1955

Description: Progress is reported in studies on (1) injection tables, (2) radon escape from bone containing radium, (3) on the question of th228 translocation in Ra228 dogs, (4) further studies on the metabolism of Th228 and its daughters, (5) veterinary group report, (6) hematology observations, (7) biochemistry, (8) pathology and detailed radioautography report, (9) radioautographic studies of Pu and RdTh teeth, (10) effect of parathormone on the deposition of Pu in rats, (11) speculation on the toxicity … more
Date: September 30, 1955
Creator: University of Utah. Radiobiology Laboratory
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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