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Natural gas massive hydraulic fracture research and advanced technology project. Quarterly report: February 1977--April 1977

Description: Two field experiments were conducted with the surface electrical potential measurement system. The first was an MHF experiment with G.P.E. (Gas Producing Enterprises) on March 15 south of Vernal, Utah. This fracture was a joint ERDA-industry funded experiment. Approximately 640,000 gallons of fluid and 1.1 million pounds of proppant were injected into multilayered gas pay zones from a depth of 6500 feet to 8000 feet. This analysis of the data has produced several new and different concepts rela… more
Date: July 1, 1977
Creator: Schuster, C. L. & Northrop, D. A.
Partner: UNT Libraries Government Documents Department
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Chelating extractants of improved selectivity. Progress report, September 1, 1976--October 31, 1977

Description: New means of characterizing metal chelating reagent selectivity have been developed and incorporated into a theoretical factor analysis of the chelate stability constants of 24 metal ions with 14 ligands of the EDTA family. The factor analysis will be extended to extracting ligand families. A computer-controlled automated metal chelate stability constant apparatus has been assembled and successfully tested. A high performance liquid chromatograph has been set up and preliminary examination of c… more
Date: July 1, 1977
Creator: Freiser, H.
Partner: UNT Libraries Government Documents Department
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Laboratory experiment demonstrating the way in which a steam barrier prevents the dissolution of salt buried in a flooded packed bed. [Implications for preventing radionuclide migration near groundwater in underground explosions]

Description: We have conducted a laboratory experiment to demonstrate a way in which a solid material can be prevented from dissolving in water. The differential solubility of salt (NaCl) in steam vs water is exploited. As long as the temperature of the area and water surrounding the salt is maintained above the boiling point of water, the salt cannot dissolve. This phenomenon, known as the thermal barrier, has far-reaching implications for preventing the dispersal of contaminants present near groundwater s… more
Date: July 18, 1977
Creator: Taylor, R. W. & Bowen, D.
Partner: UNT Libraries Government Documents Department
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Radiation Laboratory, University of Notre Dame. Quarterly report, April 1, 1977--June 30, 1977. [One paragraph summaries of various investigations]

Description: Investigations in progress include: ionization potentials of H/sub 2/O from molecular orbital and valence bond wavefunctions; early events in pulse-irradiated polar liquids; epithermal trapping of electrons; range of photoionized electrons in high-mobility liquids using field-dependent mobility; scattering of exciton by the impurity; model molecular orbital studies of the chemisorption of atomic hydrogen and oxygen on aluminium surfaces; laser induced fluorescence and the geometry of the excite… more
Date: July 13, 1977
Partner: UNT Libraries Government Documents Department
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High-temperature gas-cooled reactor safety studies. Progress report for January 1, 1974--June 30, 1975

Description: Progress is reported in the following areas: systems and safety analysis; fission product technology; primary coolant technology; seismic and vibration technology; confinement components; primary system materials technology; safety instrumentation; loss of flow accident analysis using HEATUP code; use of coupled-conduction-convection model for core thermal analysis; development of multichannel conduction-convection program HEXEREI; cooling system performance after shutdown; core auxiliary cooli… more
Date: July 1, 1977
Creator: Cole, T. E.; Sanders, J. P. & Kasten, P. R.
Partner: UNT Libraries Government Documents Department
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Evaluation of the LASL automated spectrophotometer for uranium determination at submilligram levels

Description: The LASL automated spectrophotometer, designed for determination of 1 to 14 mg of uranium and 0.5 to 14 mg of plutonium, has been evaluated for determination of lower levels of uranium to 0.12 mg. The essentially linear response of absorbance is maintained and the standard deviation for a single measurement is constant at about 0.013 mg of uranium, corresponding to a maximum uncertainty of about 10 percent at the 0.12-mg limit. The instrument was applied to the analysis of a series of low-level… more
Date: July 1, 1977
Creator: Hollen, R. M.; Jackson, D. D. & Rein, J. E.
Partner: UNT Libraries Government Documents Department
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Determination of fission product and heavy metals inventories in FTE-4 fuel rods by a grind-burn-leach flowsheet

Description: Experiments using High-Temperature Gas-Cooled Reactor (HTGR) fuel material, TRISO-coated (2.75 Th/U)C/sub 2/--TRISO-coated ThC/sub 2/ and TRISO-coated UO/sub 2/--BISO-coated ThO/sub 2/, were performed in Building 4507 (the High-Level Chemical Development Facility) to determine the inventory and transport behavior of fission products and heavy metals from a grind-burn-leach process flowsheet. In addition, values calculated by the ORNL Isotope Generation and Depletion Code (ORIGEN, a computer pro… more
Date: July 1, 1977
Creator: Fitzgerald, C. L.; Vaughen, V. C. A. & Lamb, C. E.
Partner: UNT Libraries Government Documents Department
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PuO/sub 2/ dissolution problem for LWR plutonium recycle and LMFBR fuels: fabrication and reprocessing problems and their resolution

Description: A survey was made of the information reported to date for laboratory-scale dissolution experiments on PuO/sub 2/-UO/sub 2/ fuels, of reprocessing plant problems that might be encountered with these fuels, and of the fabrication methods for producing these fuels. The possibility of producing fuels that will be highly soluble in pure nitric acid without resorting to the use of corrosive fluorides for complete dissolution is examined. The report concludes that production of highly soluble fuel is … more
Date: July 1, 1977
Partner: UNT Libraries Government Documents Department
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Results of reservoir evaluation tests, 1976 East Mesa Geothermal Field, California

Description: Two interference well tests, conducted at the U.S. Bureau of Reclamation's East Mesa geothermal test facility in Southern California by the Lawrence Berkeley Laboratory, serve to better define the geothermal reservoir's geometry and hydrologic characteristics. Temperature profiles taken indicate that the reservoir is approximately 3000 feet thick and is located about 6000 feet below the ground surface. The temperature at depth is approximately 350{sup 0}C. The two well tests, each of approximat… more
Date: July 1, 1977
Creator: Narasimhan, T. N.; McEdwards, D. G. & Witherspoon, P. A.
Partner: UNT Libraries Government Documents Department
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Combined Macroscopic and Microscopic Approach to the Fracture of Metals. Technical Progress Report, July 1976--June 1977

Description: The work includes the completion of a comprehensive study of the contributions of dislocation substructures and local stresses at particle interfaces to the strain hardening of dispersion hardened steels, and the presentation of a model of segregant induced embrittlement of grain interfaces. Work was continued on crack initiation at inclusions and on the theory of plastic flow localization. These microscopic effects are discussed in relation to the mechanisms of brittle fracture and ductile rup… more
Date: July 1, 1977
Creator: Gurland, J.; Rice, J. R.; Asaro, R. J. & Needleman, A.
Partner: UNT Libraries Government Documents Department
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Radiochemical analyses of game birds collected from the Hanford environs, 1971--1975. [/sup 90/Sr, /sup 137/Cs, /sup 65/Zn, /sup 60/Co]

Description: Game birds were collected routinely on the Hanford Site as a way of monitoring radionuclide concentrations potentially attributable to Hanford operations. In general, radionuclide concentrations attributable to Hanford operations were only slightly greater than or indistinguishable from expected levels attributed to worldwide fallout. An exception was that /sup 137/Cs concentrations, primarily in ducks and coots, were higher than levels attributable to fallout. Only two observations, a /sup 90/… more
Date: July 1, 1977
Creator: Fix, J. J. & Blumer, P. J.
Partner: UNT Libraries Government Documents Department
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Location errors in time of arrival (TOA) and time difference of arrival (TDOA) systems

Description: It is shown that the covariance matrix of object location errors is identical for time of arrival (TOA) and time difference of arrival (TDOA) systems if the inverse of the covariance matrix of TOA (TDOA) errors is used as a weighting matrix. Also, with this weighting the location errors statistics do not depend on the particular difference pairs in the TDOA scheme, provided that a complete and nonredundant set is used. If the TOA or TDOA errors are samples of jointly Gaussian random variables, … more
Date: July 1, 1977
Creator: Aronson, Eugene A.
Partner: UNT Libraries Government Documents Department
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Dimensional analysis of solids transport and dispersion in a rotary kiln

Description: To organize data being obtained in an existing experimental program on the dispersion coefficient for material in a rotating kiln, a dimensional analysis was performed using all of the variables now thought to be relevant. Rotary kilns are being considered for use in the voloxidation process for the recovery of tritium from spent nuclear power reactor fuels. Design for the efficient recovery of tritium stipulates a residence time distribution for material within the kiln; therefore, a considera… more
Date: July 1, 1977
Creator: Whatley, M. E.
Partner: UNT Libraries Government Documents Department
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LASNEX: pondermotive force algorithm

Description: The new algorithm used to calculate the ponderomotive force in LASNEX is discussed. The algorithm is shown to be identical with the corresponding analytic expression when the WKB solution for the fields in a plane-parallel medium is used. LASNEX calculations performed to check the ponderomotive force algorithm are described. 2 figures.
Date: July 7, 1977
Creator: Harte, J. A. & Zimmerman, G. B.
Partner: UNT Libraries Government Documents Department
open access

Organization of the R chromosome region in maize. Progress report, September 1, 1976--October 31, 1977

Description: The position of the controlling element Dissociation, Ds, was mapped in maize in three instances in which it transposed to R, inhibiting expression of the seed-pigmenting determiner, Sc. Mapping was carried out in heterozygotes between the inhibited alleles and a stable allele conditioning only plant pigmentation (P determiner).
Date: July 1, 1977
Creator: Kermicle, J. L.
Partner: UNT Libraries Government Documents Department
open access

Positive pressure columns used for solvent cleanup or chromatography

Description: By utilizing a mercury pressure valve, a volatile solvent, n-pentane, was conveniently used in a classical gravity-feed liquid chromatographic column. The pseudo-closed system maintained column efficiency by preventing the formation of column bubbles. The system was efficient in reducing solvent evaporation as well as preventing water condensation at the column outlet. Since free solvent vapors were eliminated, the system provided an additional safety factor when a flammable solvent, such as n-… more
Date: July 1, 1977
Creator: Semonian, B. P.; Lubkowitz, J. A. & Rogers, L. B.
Partner: UNT Libraries Government Documents Department
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Heat exchanger-ingot casting/slicing process. Silicon sheet growth development for the large area silicon sheet task of the low cost silicon solar array project. Seventh quarterly progress report, March 22, 1977--June 30, 1977

Description: Efforts in crystal casting during the last quarter were directed towards obtaining crack-free, single crystal boules. A crack-free 15 cm diameter silicon ingot has been cast using thin-wall, clear silica crucibles. A number of crack-free ingots have been solidified on smaller scales using sintered silica liners and coatings. Single crystal growth has been achieved all the way to the top of the seed as well as laterally to the crucible walls. Sixty-four wafers per inch (5-7mils, 0.125-0.175mm th… more
Date: July 1, 1977
Creator: Schmid, F. & Khattak, C. P.
Partner: UNT Libraries Government Documents Department
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Nonlinear saturation of the trapped-ion mode by mode coupling in two dimensions

Description: A study of the nonlinear saturation by mode coupling of the dissipative trapped-ion mode is presented in which both radial and poloidal variations are considered. The saturation mechanism consists of the nonlinear coupling via E x B convection of energy from linearly unstable modes to stable modes. Stabilization is provided at short poloidal wavelengths by Landau damping from trapped and circulating ions, at short radial wavelengths by effects associated with the finite ion banana excursions an… more
Date: July 20, 1977
Creator: Cohen, B. I. & Tang, W. M.
Partner: UNT Libraries Government Documents Department
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Incomplete Cholesky conjugate gradient method for the STAR (5-point operator)

Description: A method for implementing the Incomplete Cholesky Conjugate Gradient algorithm on the CDC STAR-100 is described. The conjugate gradient method is used to solve the system of equations arising from the differencing of the elliptic partial differential equation (PDE) grad . D(x,y) grad u + cu = f(x,y). The method is implemented by use of a five-point difference approximation the PDE. The method is directly applicable to the nine-point case. 3 tables.
Date: July 1, 1977
Creator: Greenbaum, A. & Rodrigue, G.
Partner: UNT Libraries Government Documents Department
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Steady state radiative cooling rates for low-density high-temperature plasmas

Description: Steady-state radiative cooling rates, average charge states (Z), and mean square charge states (Z/sup 2/) for 47 elements with atomic number Z ranging from 2 to 92 have been calculated for low-density (n/sub e/ < 10/sup 16/ electrons/cm/sup 3/), high-temperature (T = 0.002 ..-->.. 100 keV) plasmas. The 47 elements spanning the periodic table include many materials of interest to controlled thermonuclear fusion research. The results for the radiation rates and charge states are presented graphic… more
Date: July 1, 1977
Creator: Post, D. E.; Jensen, R. V.; Tarter, C. B.; Grasberger, W. H. & Lokke, W. A.
Partner: UNT Libraries Government Documents Department
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2-MW plasmajet facility thermal tests of concrete. [PWR and BWR]

Description: A test was made in the 2-Megawatt Plasmajet Facility to obtain experimental data relative to the thermal response of concrete to incident heat flux. 14.6 cm diameter by 8.0 cm long concrete cylinders were positioned in a supersonic flow of heated nitrogen from an arc heater. The end of the concrete cylinders impacted by the flow were subjected to heat fluxes in the range of 0.13 to 0.35 kW/cm/sup 2/. Measurements included cold wall surface heat flux and pressure distributions, surface and indep… more
Date: July 1, 1977
Creator: Goin, Kenneth L.
Partner: UNT Libraries Government Documents Department
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Energy transfer mechanisms in photobiological reactions. Progress report, 1 August 1976--31 July 1977

Description: Progress is reported on the following studies: chemical structure of biomolecules and mechanisms of their sensitized photo-oxidation; relationships between the structure and photosensitizing efficiencies of porphyrins; effects of photodynamic treatment on mammalian tendons; and sensitized photo-oxidation of substituted uracils, methionine, other amino acids, and horse-radish peroxidase. (HLW)
Date: July 31, 1977
Creator: Spikes, J. D.
Partner: UNT Libraries Government Documents Department
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FRAP-S2: a computer code for the steady state analysis of oxide fuel rods

Description: This document describes the Fuel Rod Analysis Program--Steady State code (FRAP-S) and the verification of FRAP-S as a fuel rod analysis tool. FRAP-S2 (Fuel Rod Analysis Program--Steady State, Version 2) is a FORTRAN IV computer code which can be used to solve for the long term burnup response of a light water reactor fuel rod. The coupled effects of fuel and cladding deformation, temperature distribution, internal gas accumulation, and pressure and material property on the behavior of the fuel … more
Date: July 1, 1977
Creator: Dearien, J. A.; Bohn, M. P.; Berna, G. A.; Coleman, D. R. & Laats, E. T.
Partner: UNT Libraries Government Documents Department
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