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Resource Assessment for Microalgal/Emergent Aquatic Biomass Systems in the Arid Southwest: Final Report (open access)

Resource Assessment for Microalgal/Emergent Aquatic Biomass Systems in the Arid Southwest: Final Report

This research project has been designed to facilitate the eventual selection of biomass production systems using aquatic species (microalgal and emergent aquatic plant species (MEAP) which effectively exploit the potentially available resources of the Southwest.
Date: December 23, 1982
Creator: Vigon, B. W.; Arthur, M. F.; Taft, L. G.; Wagner, C. K.; Lipinsky, E. S.; Litchfield, J. H. et al.
System: The UNT Digital Library
Investigation of structural changes in residential electricity demand (open access)

Investigation of structural changes in residential electricity demand

The purpose of this study was to investigate the stability of aggregate national residential electricity demand coefficients over time. The hypothesis is maintained that the aggregate residential demand is the sum of various end-use demand components. Since the end-use composition changes over time, the demand relationship may change as well. Since the end-use composition differs among regions, the results obtained from this study can be used for making inferences about regional differences in electricity demand relationships. There are two additional sources for a possible structural change. One is that consumers may react differently to declining and rising prices, secondly, the impact of the 1973 oil embargo may have shifted demand preferences. The electricity demand model used for this study is presented. A moving regression method was employed to investigate changes in residential electricity demand over time. The statistical results show a strikingly consistent pattern of change for most of the structural variables. The most important finding of this study is that the estimated structure of residential electricity demand changes systematically over time as a result of changes in the characteristics (both durability and saturation level) of the stock of appliances. Furthermore, there is not strong evidence that the structural changes …
Date: September 23, 1982
Creator: Chern, W. S. & Bouis, H. E.
System: The UNT Digital Library
Balancing the Budget and Limiting Federal Spending: A Selected Bibliography (open access)

Balancing the Budget and Limiting Federal Spending: A Selected Bibliography

This selected bibliography lists articles and books on various issues concerning legislation to limit Federal spending and proposed constitutional amendments requiring a balanced budget, especially economic issues. The bibliography focuses mainly on literature of recent years.
Date: August 23, 1982
Creator: Chin, Felix
System: The UNT Digital Library
Determination of the angular and energy dependence of hard constituent scattering from. pi. /sup 0/ pair events at the CERN intersecting storage rings (open access)

Determination of the angular and energy dependence of hard constituent scattering from. pi. /sup 0/ pair events at the CERN intersecting storage rings

We present data on proton-proton collisions, obtained at the CERN Intersecting Storage Rings, in which two roughly back-to-back ..pi../sup 0/'s of high transverse momentum (p/sub T/) were produced. The angular distribution of the dipion axis relative to the collision axis is found to be independent of both the effective mass m of the dipion system and the centre-of-mass energy ..sqrt..s of the proton-proton collision. The cross-sections dsigma/dm at the two values of ..sqrt..s satisfy a scaling law of the form dsigma/dm = G(x)/m/sup n/, where x = m(..pi../sup 0/,..pi../sup 0/)/..sqrt..s and n = 6.5 +- 0.5. We show from our data that the leading ..pi../sup 0/ carries most of the momentum of the scattered parton. Given this fact, the axis of the dipion system follows closely the direction of the scattered constituents, and we exploit this to determine the angular dependence of the hard-scattering subprocess. We also compare our data with the lowest order QCD predictions using structure functions as determined in deep-inelastic scattering and fragmentation functions from electron-positron annihilation.
Date: August 23, 1982
Creator: Angelis, A. L. S.; Besch, H. J. & Blumenfeld, B. J.
System: The UNT Digital Library
Tinkering at the main-ring lattice (open access)

Tinkering at the main-ring lattice

To improve production of usable antiprotons using the proton beam from the main ring and the lossless injection of cooled antiprotons into the main ring, modifications of the main ring lattice are recommended.
Date: August 23, 1982
Creator: Ohnuma, S.
System: The UNT Digital Library
Use of nuclear explosions to create gas condensate storage in the USSR. LLL Treaty Verification Program (open access)

Use of nuclear explosions to create gas condensate storage in the USSR. LLL Treaty Verification Program

The Soviet Union has described industrial use of nuclear explosions to produce underground hydrocarbon storage. To examples are in the giant Orenburg gas condensate field. There is good reason to believe that three additional cavities were created in bedded salt in the yet to be fully developed giant Astrakhan gas condensate field in the region of the lower Volga. Although contrary to usual western practice, the cavities are believed to be used to store H/sub 2/S-rich, unstable gas condensate prior to processing in the main gas plants located tens of kilometers from the producing fields. Detonations at Orenburg and Astrakhan preceded plant construction. The use of nuclear explosions at several sites to create underground storage of highly corrosive liquid hydrocarbons suggests that the Soviets consider this time and cost effective. The possible benefits from such a plan include degasification and stabilization of the condensate before final processing, providing storage of condensate during periods of abnormally high natural gas production or during periods when condensate but not gas processing facilities are undergoing maintenance. Judging from information provided by Soviet specialists, the individual cavities have a maximum capacity on the order of 50,000 m/sup 3/.
Date: August 23, 1982
Creator: Borg, I. Y.
System: The UNT Digital Library
Enterprise Zones: The Urban Jobs and Enterprise Zone Act of 1981 (open access)

Enterprise Zones: The Urban Jobs and Enterprise Zone Act of 1981

"Enterprise zones” as a concept originated in England in the late 1970s. The idea is to free specified urban areas of taxes and Government regulations to encourage private business investment and create new jobs. There is little in the way of direct empirical evidence to indicate whether and how such an approach would work. There is considerable interest in the concept, however, since other Federal urban assistance programs (such as Urban Renewal in the 1950s, Model Cities in the 1960s, and Urban Development Action Grant more recently -- since 1978) have not produced in sufficient amount the desired results in creating jobs for the unemployed in inner cities.
Date: July 23, 1982
Creator: Breckenridge, Charlotte
System: The UNT Digital Library
Structural Analysis of the Central Tracking Chamber (open access)

Structural Analysis of the Central Tracking Chamber

ANSYS has been used to determine the deflection of the central tracking chamber and stress levels during construction and in the final configuration.
Date: July 23, 1982
Creator: Leininger, Mark
System: The UNT Digital Library
U.S.-Soviet Negotiations to Limit Intermediate-Range Nuclear Weapons (open access)

U.S.-Soviet Negotiations to Limit Intermediate-Range Nuclear Weapons

None
Date: July 23, 1982
Creator: Gellner, Charles R
System: The UNT Digital Library
Chemical stimulation of geothermal injection wells (open access)

Chemical stimulation of geothermal injection wells

Various types of chemical stimulation methods have been considered. High pH fluids seem to be a logical choice for some wellbore and/or reservoir stimulations. However, forming of secondary deposits and creating of new reservoir damages due to chemical reactions between the rock material and these stimulation fluids make it advisable not to consider any of these high pH fluids in high temperature geothermal reservoirs. Fluids having a neutral pH can be successfully used in chemical stimulation methods only in a very few and rare instances. Low pH fluids, i.e. acids, have by far the best chance to be used for these chemical stimulation jobs. The major part of this report is concerned with acidizing techniques for geothermal injection wells. The acidizing techniques to be used for an experimental and the routine stimulation of injection wells are described. Some recent field experiences and the results of some laboratory work are described.
Date: June 23, 1982
Creator: Vetter, O. J. & Kandarpa, V.
System: The UNT Digital Library
Axicell design for the end plugs of MFTF-B (open access)

Axicell design for the end plugs of MFTF-B

Certain changes in the end-plug design in the Mirror Fusion Test Facility (MFTF-B) are described. The Laboratory (LLNL) proposes to implement these changes as soon as possible in order to construct the machine in an axicell configuration. The present physics and technology goals as well as the project cost and schedule will not be affected by these changes.
Date: April 23, 1982
Creator: Thomassen, K.I. & Karpenko, V.N.
System: The UNT Digital Library
Thermophysical properties of coal liquids. Final report. [300 to 600 K] (open access)

Thermophysical properties of coal liquids. Final report. [300 to 600 K]

Thermophysical properties for coal-solvent slurries were determined in the range 300 to 600 K, in some cases extending to 700 K. Density, viscosity, thermal conductivity, and enthalpy were determined. A recycle solvent from the Wilsonville SRC-I plant and a KY-9 coal were used. Rheology was studied with a reciprocating cylinder viscometer designed to operate at elevated pressure and temperature. Viscous properties were found to follow the Bingham plastic model. A high-viscosity peak in the range 500 to 600 K was characterized by very high values of yield stress. At other temperatures the slurries were nearly Newtonian. Time and temperature dependence of viscous behavior were studied. Densities were determined by high temperature pyknometer, thermal conductivities by the transient line-source technique, and enthalpies by drop calorimeter and by pressure DSC.
Date: April 23, 1982
Creator: Droege, J. W.; Stickford, G. H.; Longanbach, J. R.; Venkateswar, R. & Chauhan, S. P.
System: The UNT Digital Library
Torsional rigidity of central calorimeter module. [Using ANSYS computer code] (open access)

Torsional rigidity of central calorimeter module. [Using ANSYS computer code]

The torsional rigidity of the central calorimeter module is obtained using ANSYS.
Date: April 23, 1982
Creator: Leininger, M.
System: The UNT Digital Library
Data report for the Southwest Residential Experiment Station, January 1982 (open access)

Data report for the Southwest Residential Experiment Station, January 1982

Physical performance data obtained from the photovoltaic energy systems under test at the Southwest Residential Experiment Station in Las Cruces, New Mexico are tabulated and graphed for the month of January, 1982. Data drawn from the Residential Data System (RDS) appears in several formats. A one-page summary is provided as well as a more detailed hour-by-hour tabulation for an average day of the month. Energy histograms are provided, based on RDS data and recording kilowatt hour meters. The histograms also present horizontal and plane-of-array insolation data as well as comments that explain data and/or energy production anomalies. (LEW)
Date: February 23, 1982
Creator: Lieberman, M.; Hai, O. Y.; Hocking, G. & Whitaker, C.
System: The UNT Digital Library