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SPE water electrolysis technology development for large scale hydrogen production. Progress report No. 4, June 15, 1976--September 30, 1976

Description: Porous carbon fiber paper was selected as the cathode membrane and electrode assembly support based on over 1200 hr operational evaluation. Three potential anode supports are under test. All three appear technically satisfactory after 500 to 1200 hr operational evaluation on each. Optimization of molds and molding techniques for a foil backed ribbed carbon collector of bipolar design, including ribbed flow fields, manifolds, ports and sealing surfaces, is in process. Over 2800 hr demonstrated a… more
Date: October 7, 1976
Partner: UNT Libraries Government Documents Department
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Standpipe-Bubbler pump level control study: 1E-3862, controlled clearance pump/system model analysis (Task A) W. P. 7373. Engineering memorandum 0190. [LMFBR]

Description: Computer simulation results of the Standpipe-Bubbler pump level control system/controlled clearance pump configuration 1E-3862 are presented. Fluid level control system behavior is presented in graphical form for normal plant loading, unloading, and trip transients, under varying conditions of cover gas mass flow rate, tank impedances, temperature, and flow rates through discharge seal and bearing leakage paths. Satisfactory fluid level control can be attained for this configuration with a Stan… more
Date: June 7, 1976
Creator: Salant, R.F. & Cook, M.E.
Partner: UNT Libraries Government Documents Department
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Experimental observations on long pulse intense ion diode operation

Description: An experiment in which a long pulse electron beam diode is converted to a reflex ion diode is reported. The results further substantiate the model of reflex ion diode behavior as well as extend the duration of ion mode operation to greater than 500 nsec.
Date: July 7, 1976
Creator: Prono, D. S.; Clark, R. & Prestwich, K.
Partner: UNT Libraries Government Documents Department
open access

Flameless atomic absorption determination of beryllium in the presence of various anions and cations

Description: A method for determining trace amounts of beryllium in the presence of various anions and cations is described. The method involves use of a Perkin-Elmer Model 503 spectrophotometer equipped with an HGA-2100 graphite furnace. The absorption signal from 20 ng/ml of beryllium varies significantly from acid to acid, and both 5 percent (V/V) nitric acid and 5 percent (V/V) sulfuric acid were studied as possible analysis solvents. Absorption signal enhancement and suppression caused by the presence … more
Date: May 7, 1976
Creator: Hurlbut, J. A. & Bokowski, D. L.
Partner: UNT Libraries Government Documents Department
open access

Pockels cell pulse-stackers

Description: The general transmission characteristics of a pulse-stacking system consisting of an etalon and a cylindrical-ring electrode Pockels cell Q-switch are discussed. A voltage pulse-forming network capable of switching the Pockels cell transmission on the necessary time scales is presented and the outputs of a simple pulse-stacker configuration are calculated for different voltage waveforms. These results indicate that an efficient (approximately 1 percent total pulse energy transmission) Pockels c… more
Date: January 7, 1976
Creator: Harney, R. C.
Partner: UNT Libraries Government Documents Department
open access

National waste terminal storage program

Description: An overview is provided of the national geologic disposal program. The portions of the program concerning South Dakota are discussed in detail. (LK)
Date: October 7, 1976
Creator: Zerby, C. D.
Partner: UNT Libraries Government Documents Department
open access

Preparation of microspherical alpha-radiation sources. [/sup 238/Pu; /sup 22/Na]

Description: Sodium silicate glass microspheres in the 105-125 ..mu..m diameter size range, containing in vitreous solution the radioisotopes plutonium-238 and sodium-22, were prepared in four batches which emitted a nominal 40, 80, 320, and 640 nCi of total alpha radiation and approximately 1 nCi of gamma radiation form the sodium-22 isotope from each sphere. The initial integrity of the glasses was good and no wipeable contamination was detected from the spheres. The alpha particle range in the glass for … more
Date: May 7, 1976
Creator: Wittenberg, L. J.
Partner: UNT Libraries Government Documents Department
open access

Temperature tests of high frequency SLIFER oscillator, LEA73-2176. [For monitoring underground nuclear detonations at Nevada Test Site]

Description: SLIFER (Short Location Indication by Frequency of Electrical Resonance) systems measure stress wave velocity in solid or liquid materials. They monitor underground nuclear detonations at the Nevada Test Site (NTS). A shorted length of coaxial cable is a component in an oscillator's tank circuit. This sensor cable is inductive when less than one-fourth wavelength long at the oscillator's resonant frequency. The stress wave from a detonation crushes and shorts this sensor cable. As the … more
Date: June 7, 1976
Creator: Aaron, Carl C., Jr.
Partner: UNT Libraries Government Documents Department
open access

Determination of beryllium in urine, hair, fingernail, and fecal samples by flameless atomic absorption spectrometry

Description: Methods for determining trace amounts of beryllium in urine, hair, fingernail, and fecal samples are described. These methods involve use of a Perkin-Elmer Model 503 spectrophotometer equipped with an HGA-2100 graphite furnace. Lanthanum was used as a masking and enhancing agent, and recoveries were determined by direct comparison with aqueous standards. The hair and fingernail samples were degraded readily in a nitric acid-perchloric acid mixture, and the feces were digested rapidly using a fe… more
Date: May 7, 1976
Creator: Hurlbut, J. A.
Partner: UNT Libraries Government Documents Department
open access

Feasibility of storing radioactive wastes in Columbia River basalts

Description: In 1968 Atlantic Richfield Hanford Company initiated a study to assess the feasibility of final geologic storage of Hanford defense, radioactive waste in deep caverns constructed in the Columbia River flood basalts. The project, which included geologic studies, hydrologic tests, heat flow analysis, compatibility analysis, and tectonic studies, was suspended in 1972 before completion of interpretive work. In 1976 the interpretation and documentation were completed. These data may be valuable in … more
Date: December 7, 1976
Creator: Deju, R. A.
Partner: UNT Libraries Government Documents Department
open access

Evaluation of the Amperex 56 TVP photomultiplier

Description: Characteristics have been measured for the Amperex 56 TVP 42-mm-diameter photomultiplier. Some typical photomultiplier characteristics--such as gain, dark current, transit and rise times--are compared with data provided by the manufacturer. Photomultiplier characteristics generally not available from the manufacturer, such as the single photoelectron time spread, the relative collection efficiency, the relative anode pulse amplitude as a function of the voltage between the photocathode and focu… more
Date: July 7, 1976
Creator: Lo, C. C. & Leskovar, B.
Partner: UNT Libraries Government Documents Department
open access

Economic Concentration in the U.S., 1967-1976: A Selected Bibliography

Description: This report is about the bibliography cover materials on economic concentration in various American manufacturing industries and service industries, as well as studies concerned with the measurement of economic concentration.
Date: June 7, 1976
Creator: Chin, Felix & Knight, Edward
Partner: UNT Libraries Government Documents Department
open access

Laser-generated stress pulses for material-response studies

Description: Experimental techniques for the generation of stress pulses of submicrosecond duration, in the form of uniaxial strain waves, were developed by absorbing the radiation from a Q-switched laser in thin films of liquids and solids resting on hard steel substrates. The experiments employed pulses of radiation at a wavelength of 1.06 ..mu..m, with a duration of about 30 ns at half maximum power and fluences from 8 to 13 J/cm/sup 2/. The stress waves produced in the steel substrates were measured by … more
Date: September 7, 1976
Creator: Wood, D. S. & Wilcox, W. W.
Partner: UNT Libraries Government Documents Department
open access

Animal Baiting and Fighting: Federal and State Statutes

Description: This report details the federal and state laws regarding animal baiting and fighting. In general, this report found three types of state statutes on this matter: specific legal prohibition aimed at stamping out a practice considered either distasteful, immoral, or a nuisance; general animal cruelty provisions enacted into law which may or may not be held applicable to baiting and fighting or any or all animals, and which may be not be enforced against those involved in such activities; and the … more
Date: May 7, 1976
Creator: American Law Division
Partner: UNT Libraries Government Documents Department
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