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Acoustic Emission Weld Monitoring of Nuclear Components

Description: Acoustic emission monitoring augments other nondestructive testing methods and is sometimes applicable when other tests cannot be applied. This is, in part, due to the high sensitivity of acoustic emission monitoring. Acoustic emission monitoring is only sensitive to active flaw-growth, however, and will not detect a flaw in equilibrium. This paper describes the application of acoustic emission monitoring to nuclear reactor fuel pin end closure welds and other weldments of the reactor piping.
Date: January 25, 1972
Creator: Romrell, D. M.
Partner: UNT Libraries Government Documents Department
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Geothermal overviews of the western United States

Description: This compendium presents data on geothermal resources for all those western states with geothermal potential. Individual sections, which have been processed separately for inclusion in the EDB data base, are devoted to each of the following states: Arizona, California, Colorado, Hawaii, Idaho, Montana, Nevada, New Mexico, Oregon, Utah, Washington, and Wyoming. A separate section is also devoted to the U.S. Bureau of Reclamation Imperial Valley Project. Maps and references are included for each … more
Date: January 1, 1972
Creator: Anderson, D. N. & Axtell, L. H.
Partner: UNT Libraries Government Documents Department
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[News Story Log: January 1 to August 10, 1972]

Description: Logbook from the KXAS-TV/NBC station in Fort Worth, Texas, documenting the names, locations, and run-times of video-taped news segments that aired each day from January through August in 1972.
Date: 1972-01/1972-08
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
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Energy resources of the United States

Description: Estimates are made of United States resources of coal, petroleum liquids, natural gas, uranium, geothermal energy, and oil from oil shale. Accuracy of the estimates probably ranges from 20 to 50 percent for identified-recoverable resources to about an order of magnitude for undiscovered-submarginal resources. The total cost resource base in the United States is estimated to be about 3,200 billion tons, of which 200 to 390 billion tons can be considered in the category identified and recoverable… more
Date: January 1, 1972
Creator: Theobald, P. K.; Schweinfurth, S. P. & Duncan, D. C.
Partner: UNT Libraries Government Documents Department
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Neutron Energy Spectrum of a Po-Be (alpha,n) Source

Description: The newtron energy spectrum of a Po-Be (alpha, n) source was measured as part of an intercomparison of newtron energy spectral measurements sponsored by Oak Ridge National Laboratory. Intensity maxima for neutron energies > 1 MeV were seen at or near 1.4, 2.1, 3.1, 5.0, 6.7, 7.7 and 9.7 MeV.
Date: January 17, 1972
Creator: Anderson, M. E.
Partner: UNT Libraries Government Documents Department

[Cartoon painting of Country Gold Radio]

Description: Photograph of a painted cartoon of Country Gold Radio. A man is broadcasting on the radio, under the supervision of an army sergeant, using a microphone and a record player. Books and maps are on the floor. A man in the background has his pants down and is holding pieces of paper. A man near the door frame is wearing a cowboy hat. He is holding a magnifying glass up to an object in his hand. Two individuals are standing behind the door with a cow.
Date: January 13, 1972
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
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Nature of simultaneous processes in plastic deformation

Description: The nature of two simultaneous processes is analyzed in detail. It is found that the experimental activation enthalpy increases with temperature for parallel processes and decreases with temperature for consecutive processes. Similarly the activation volume increases with pressure for consecutive processes and decreases with pressure for parallel processes. The creep rate stress exponent increases with stress for parallel processes and decreases with stress for consecutive processes. Each activ… more
Date: January 1, 1972
Creator: Li, J.C.M.
Partner: UNT Libraries Government Documents Department
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Stress-induced deformation of metals during fast-neutron irradiation

Description: From European conference on irradiation embrittlement and creep in fuel cladding and core components; London, UK (9 Nov Theoretical models for the deformation of metals subjected simultaneously to external loads and fast-neutron irradiation are discussed. The following models have been analyzed in detail: dislocation climb; climb controlled glide; and nucleation, growth, and unfaulting of dislocation loops. It is shown that the strains produced only by the climb of dislocations are equal to the… more
Date: January 1, 1972
Creator: Wolfer, W. G. & Boltax, A.
Partner: UNT Libraries Government Documents Department
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Study of the electron donor--acceptor properties of diamagnetic organic molecules via positronium reactions

Description: From 11th international symposium on free radicals; Berchtesgaden, F.R. Germany (4 Sep 1973). The results of a preliminary study of the interactions of positronium with nitrobenzene and ontho, meta, and para derivatives of nitrotoluene and dinitrobenzene in benzene solutions are reported. Distinct differences in the rate constants for the reaction of positronium with the organic molecules were observed for the various systems, and an attempt was made to correlate these changes to certain molecu… more
Date: January 1, 1972
Creator: Madia, W. J.; Nichols, A. L. & Ache, H. J.
Partner: UNT Libraries Government Documents Department
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Biological effects of daily inhalation of radon and its short-lived daughters in experimental animals

Description: From symposium on noble gases; Las Vegas, Nevada, USA (24 Sep 1973). Exposures of rats, mice, and hamsters for 90 hours per week to radon daughters nanging from 2000 to 8500 WL, with and without 18 mu g per liter uranium ore dust, caused marked lifeshortening in all three species. Marked reduction in body weights occurred in all three species, with weight losses of 30 to 50% of control animal values in all species after 31/2 months of exposures. Mice exposed to radon daughters and ore dust were… more
Date: January 1, 1972
Creator: Palmer, R. F.; Stuart, B. O. & Filipy, R. E.
Partner: UNT Libraries Government Documents Department
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New absolute high pressure gauge

Description: A new absolute pressure measurement system based on the simultaneous measurement of length and ultrasonic transit times is described. The system was used to determine the transition pressure of pure mercury at 0 deg C at 7571.2 plus or minus 1.6 bars. It is particularly advantageous to use a device for calibrating secondary gauges such as manganin gauges inasmuch as it gives a highly accurate measurement of nonlinearities in such secondary gages. The gage calibrated in the present study reaches… more
Date: January 1, 1972
Creator: Ruoff, A. L.; Lincoln, R. C. & Chen, Y. C.
Partner: UNT Libraries Government Documents Department
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Studies of low temperature phase transformations in high field superconductors and the phonon spectrum and mechanical properties of vanadium. Final report

Description: Extensive studies of the structure and phase transformations of high field superconductors of the BETA -tungsten type were made. A phase transformation was discovered at 43 deg K in Nb/sub 3/Sn and the structure of the low temperature phase was measured. The details of the transformation in terms of the formation of the low temperature tetragonal phase from the high temperature cubic phase was investigated both by x-ray observations and optical microscopy below 40 deg K. The complete phonon dis… more
Date: January 1, 1972
Creator: Batterman, B.W.
Partner: UNT Libraries Government Documents Department
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