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418
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182
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28
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22
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20
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19
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19
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Oklahoma Publishing Company Photography Collection
769
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657
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403
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284
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268
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212
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152
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98
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45
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Country
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Year
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Clay-mineral fabrics and chemistry in Salton Trough geothermal fields
Fluid production from, and hence the economic viability of, a geothermal field is related to the amount of clay minerals in the caprock and in the reservoir rocks. In both the East Mesa and Cerro Prieto fields in the Salton Trough of southern California, United States, and Baja California, Mexico, scanning electron micrography (SEM) has vividly documented the role of clay fabrics in deltaic quartz-sandstone reservoirs. For example, in East Mesa well 78-30 at 1630 m depth in a zone of quartz dissolution, the clay present in pores exhibits an irregular, crenulate, honeycomb fabric and has the following composition from energy dispersive x-ray analysis (EDAX): Si 61%, Al 25%, Fe 20%, Na 6%, K 2%, and Mg 1%. Platy clusters of clay (kaolinite) in Cerro Prieto well T-366 at 2522 m in a 300/sup 0/C geothermal aquifer were analyzed as: Si 62%, Al 25%, Mg 6%, and Fe 1%. In other samples, illite takes the form of wispy fibers whose intertwined ends form bridges across pores. These clay fabrics appear to reduce permeability significantly by clogging the pore throats, even though dissolution porosity ranges from 25 to 35%. Nineteen wells have been studied to date.
Date:
July 1, 1981
Creator:
Haar, S.V.; Wolgemuth, K. & Schatz, J.
Object Type:
Article
System:
The UNT Digital Library
Computer surety: computer system inspection guidance. [Contains glossary]
This document discusses computer surety in NRC-licensed nuclear facilities from the perspective of physical protection inspectors. It gives background information and a glossary of computer terms, along with threats and computer vulnerabilities, methods used to harden computer elements, and computer audit controls.
Date:
July 1, 1981
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Triple-jet structures in proton-proton interactions
In this experiment, which uses a superconducting solenoid at the CERN ISR, a large sample of two-jet events produced in proton-proton collisions at 62 GeV centre-of-mass energy has been examined for evidence of three-jet structures; that is, for the presence of events in which three particle jets can be separately identified at large transverse momenta relative to the initial proton directions, there also being spectator jets following these directions, making five jets in all. Such three-jet events are expected to be produced by gluon bremsstrahlung, as has been observed in the e/sup +/e/sup -/ case, but several additional mechanisms are expected in the case of hadronic collisions. The three-jet events are identified by cluster analysis, the particles of each event being sorted into the best three-cluster and two-cluster combinations. Results are briefly described. (WHK)
Date:
July 1, 1981
Creator:
Angelis, A. L. S.; Besch, H. J. & Blumenfeld, B. J.
Object Type:
Article
System:
The UNT Digital Library
Fundamentals of solar access
The following aspects of solar access are discussed: solar geometry, topography, orientation, trees and vegetation, design options, and legal questions. (MHR)
Date:
July 1, 1981
Creator:
Levin, M.
Object Type:
Report
System:
The UNT Digital Library
Thermoelectric refrigerator having improved temperature-stabilization means
A control system for thermoelectric refrigerators is disclosed. The thermoelectric refrigerator includes at least one thermoelectric element that undergoes a first order change at a predetermined critical temperature. The element functions as a thermoelectric refrigerator element above the critical temperature but discontinuously ceases to function as a thermoelectric refrigerator element below the critical temperature. One example of such an arrangement includes thermoelectric refrigerator elements which are superconductors. The transition temperature of one of the superconductor elements is selected as the temperature control point of the refrigerator. When the refrigerator attempts to cool below the point, the metals become superconductors losing their ability to perform as a thermoelectric refrigerator. An extremely accurate, first-order control is realized.
Date:
July 29, 1981
Creator:
Falco, Charles M.
Object Type:
Patent
System:
The UNT Digital Library
[Photograph 2012.201.B0051.0954]
Photograph taken for a story in the Daily Oklahoman newspaper. Caption: "Visitors Welcome - Sometimes-- An uninvited guest dropped in at the home of Ivan Davenport, 3700 NW 58 Terrace, Monday afternoon and nearly took the house with him."
Date:
July 21, 1981
Creator:
McDaniel, David
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0072.0066]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "A groundskeeper puts a protective tarp around home plate and fans head for cover as the rain hits All Sports Stadium Wednesday night."
Date:
July 29, 1981
Creator:
Hoke, Doug
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0071.0624]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "89er Bob Dernier steals second base (above) in the first inning ... and then takes third (below) for his 49th stolen base of the season."
Date:
July 22, 1981
Creator:
Hoke, Doug
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Radiological and Environmental Research Division Annual Report: Part 3, Ecology, January-December 1980
Annual report of the Argonne National Laboratory Radiological and Environmental Research Division regarding activities related to ecology. This report discuses programs including a development project for microcosm screening systems, two initiatives in ecological modeling, and a program of field experiments for a national assessment of crop losses due to air pollution.
Date:
July 1981
Creator:
Argonne National Laboratory. Radiological and Environmental Research Division.
Object Type:
Report
System:
The UNT Digital Library
Fuel Cycle Programs, Quarterly Progress Report: July-September 1980
Quarterly report of the Argonne National Laboratory Chemical Engineering Division regarding activities related to properties and handling of radioactive materials, operation of nuclear reactors, and other relevant research.
Date:
July 1981
Creator:
Steindler, M. J.; Bates, J. K.; Brock, R. E.; Cannon, T. F.; Couture, R. A.; Deeken, P. G. et al.
Object Type:
Report
System:
The UNT Digital Library
Fuel Cycle Programs, Quarterly Progress Report: October-December 1980
Quarterly report of the Argonne National Laboratory Chemical Engineering Division regarding activities related to properties and handling of radioactive materials, operation of nuclear reactors, and other relevant research.
Date:
July 1981
Creator:
Steindler, M. J.; Vogler, Seymour; Vandegrift, G. F.; Williams, Jacqueline; Gerding, T. J.; Jardine, L. J. et al.
Object Type:
Report
System:
The UNT Digital Library
Improving the Accuracy of Computed Eigenvalues and Eigenvectors
This paper describes a computational method for improving the accuracy of a given eigenvalue and its associated eigenvector. The method is analogous to iterative improvement for the solution of linear systems. An iterative algorithm using working precision arithmetic is applied to increase the accuracy of the eigenpair. The only extended precision computation is the residual calculation. The method is related to inverse iteration and to Newton's method applied to the eigenvalue problem.
Date:
July 1981
Creator:
Dongarra, J. J.; Moler, Cleve B. & Wilkinson, J. H.
Object Type:
Report
System:
The UNT Digital Library
First Annual Workshop on Ice Storage for Cooling Applications : Argonne National Laboratory, June 4-5, 1981
The papers presented at the first annual workshop on ice storage for cooling applications by participants from the U.S. and Canada are summarized. Novel methods of preparing naturally frozen ice and storing it are described. Attention is given to technical and economic problems and related design considerations. Comparison is made with conventional air conditioning methods. Both industrial and residential applications are discussed with regard to cost.
Date:
July 1981
Creator:
Gorski, A. J.
Object Type:
Report
System:
The UNT Digital Library
Polishing Methods for Metallic and Ceramic Transmission Electron Microscopy Specimens
"In recent years, the increasing sophistication of transmission electron microscope (TEM) studies of materials has necessitated more exacting methods of specimen preparation. The present report describes improved equipment and techniques for electropolishing and chemically polishing a wide variety of specimens. Many of the specimens used in developing or improving the techniques to be described were irradiated with heavy ions such as nickel or vanadium to study radiation damage. The high cost of these specimens increased the need for reproducible methods of initial preparation, postirradiaton processing, and final thinning for TEM examination. A technique was also developed to salvage specimens that had previously been thinned but were unusable for various reasons. Jet polishing is, in general, the method of choice for surface polishing, sectioning, and thinning. The older beaker electropolishing method is included in this report because it is inexpensive and simple, and gives some insight into how the more recent methods were developed. 29 figures, 8 tables. (ERA citation 07:004650)."--NTIS abstract.
Date:
July 1981
Creator:
Kestel, B. J.
Object Type:
Report
System:
The UNT Digital Library
Advanced Fuel Cell Development Progress Report: July-September 1980
Quarterly report discussing fuel cell research and development work at Argonne National Laboratory (ANL). This report describes efforts directed toward (1) investigating alternative concepts for components of molten carbonate fuel cell stacks and (2) improving our understanding of component behavior.
Date:
July 1981
Creator:
Pierce, R. D.; Arons, R. M.; Dusek, J. T.; Fraioli, A. V.; Kucera, G. H.; Poeppel, R. B. et al.
Object Type:
Report
System:
The UNT Digital Library
[Photograph 2012.201.B0107.0427]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Hollis Tuggle of Okmulgee, right, goes against Mitch Brinlee of Putnam City in the 136-pound match during last night's All-State dual at the Myriad."
Date:
July 23, 1981
Creator:
Hoke, Doug
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0143.0434]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "OU's Cooperative Institute of Mesoscale Meterological Studies, 815 Jenkins, is involved in plans for the construction of $20 million energy center and College of Geosciences."
Date:
July 31, 1981
Creator:
Southerland, Paul
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0143.0113]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Sometimes the most enjoyable playground equipment is the simplest."
Date:
July 7, 1981
Creator:
Klock, Roger
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0142.0504]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Surprise entertainment at Marco's is provided by Lyric performer Terry Cook who took over the maracas from dancer Lori waller,center, and performed his own South Sea island hula for Lori and wife Mariann Cook."
Date:
July 9, 1981
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0145.0081]
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "A leafy glen that used to be called Gallaher's pecan grove near Norman was the site Friday for 'Music Explosion 1981,' a country-western extravaganza which featured blazing temperatures and hot acts like Barbara Mandrell, the Gatlin Brothers and Johnny Rodriguez."
Date:
July 10, 1981
Creator:
Hoke, Doug
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0145.0080]
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Festival featured Johnny Rodriguez, Barbara Mandrell, Johnny Paycheck, Larry Gatlin and the Gatlin Brothers Band, Sammi Smith and other country music acts."
Date:
July 10, 1981
Creator:
Hoke, Doug
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0174.0054]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "A cowboy riding bareback springs from a pen at the Edmond Round Up Club's annual rodeo as the announcer calls the action."
Date:
July 3, 1981
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0172.0391]
Photograph used for a story in the Oklahoma Times newspaper.
Date:
July 4, 1981
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0172.0389]
Photograph used for a story in the Oklahoma Times newspaper.
Date:
July 4, 1981
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History