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Oral History Interviews with Sheila R. Allen, 1991
Access:
Use of this item is restricted to the UNT Community
Interview with Sheila Allen concerning her experiences as a resident of Hamilton Park, Texas from 1958 to 1991. Allen discusses her education at Hamilton Park School, the desegregation of Hamilton Park School, her experiences at Richardson Junior High, her experiences in law school at the University of Texas, the relationships between Hamilton Park and other African-American communities, school activities as a teenager, and the "Buy Out."
Date:
{1991-06-21,1991-09-04}
Creator:
Wilson, William H. & Allen, Sheila R.
Object Type:
Book
System:
The UNT Digital Library
1941: Texas Goes to War
This book is a collection of essays discussing the role of Texans in World War II. It examines both the Texas soldiers fighting in the European and Pacific theaters as well as the Texans on the Homefront. The essays describe both the military and social aspects of the war. Index starts on page 241.
Date:
1991
Creator:
Lee, James Ward; Barnes, Carolyn N.; Bowman, Kent A. & Crow, Laura
Object Type:
Book
System:
The UNT Digital Library
[Abilene City Resolutions: 1991]
Ledger containing ordinances/resolutions passed by the city of Abilene, Texas during calendar year 1991.
Date:
1991
Creator:
Abilene (Tex.)
Object Type:
Legal Document
System:
The Portal to Texas History
Alaska Oil and Gas: Energy Wealth or Vanishing Opportunity?
The purpose of the study was to systematically identify and review (a) the known and undiscovered reserves and resources of arctic Alaska, (b) the economic factors controlling development, (c) the risks and environmental considerations involved in development, and (d) the impacts of a temporary shutdown of the Alaska North Slope Oil Delivery System (ANSODS). 119 refs., 45 figs., 41 tabs.
Date:
January 1, 1991
Creator:
Thomas, Charles P.; Doughty, Tom C.; Faulder, David D.; Harrison, William E.; Irving, John S.; Jamison, H. C. et al.
Object Type:
Report
System:
The UNT Digital Library
Alternate Operating Strategies for Hot Dry Rock Geothermal Reservoirs
Flow testing and heat extraction experiments in prototype Hot Dry Rock (HDR) geothermal reservoirs have uncovered several challenges which must be addressed before commercialization of the technology is possible. Foremost among these is the creation of a reservoir which simultaneously possesses high permeability pathways and a large volume of fractured rock. The current concept of heat extraction -- a steady state circulation system with fluid pumping from the injection well to a single, low pressure production well -- may limit our ability to create heat extraction systems which meet these goals. A single injection well feeding two production wells producing fluid at moderate pressures is shown to be a potentially superior way to extract heat. Cyclic production is also demonstrated to have potential as a method for sweeping fluid through a larger volume of rock, thereby inhibiting flow channeling and increasing reservoir lifetime. 10 refs., 4 figs., 2 tabs.
Date:
January 1, 1991
Creator:
Robinson, B. A.
Object Type:
Article
System:
The UNT Digital Library
Altus Times (Altus, Okla.), Vol. 90, No. 250, Ed. 1 Tuesday, January 1, 1991
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 1, 1991
Creator:
Lomenick, Rick
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
America at the threshold. [Contains bibliography]
On the 20th anniversary of the first lunar landing mission, Apollo 11, President Bush outlined a program that would put the United States on an aggressive track to return to the Moon to stay, and to land humans on Mars. The president's space policy calls for expanding human presence an activity beyond Earth orbit into the Solar System; obtaining scientific, technological and economic benefits for the American people; encouraging private sector participation in space; improving the quality of life on the Earth; strengthening national security; and promoting international cooperation in space. The Space Exploration Initiative accomplishes these goals. In August 1989, NASA began an extensive review to summarize the technology and strategies for going back to the Moon and on to Mars. To obtain the final objective, major topical activities were defined. These activities were incremental capabilities to be achieved to fulfill the national space vision. They include: (1) moon waypoints (lunar exploration; preparation for mars; habitation; lunar based observation; fuels; energy to earth); (2) asteroids waypoints; and (3) mars waypoints. The six national space vision are (1) to increase our knowledge of solar system and beyond; (2) to rejuvenate interest in Science and engineering; (3) to refocus the US …
Date:
January 1, 1991
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Archaeological data recovery at drill pad U19au, Nye County, Nevada
Construction activities accompanying underground nuclear tests result in the disturbance of the surface terrain at the Nevada Test Site. In compliance with Federal legislation (National Historic Preservation Act of 1966 (PL 89-665) and National Environmental Policy Act of 1969 (PL 91-190)), the US Department of Energy (DOE), Field Office, Nevada, has long required that cultural resources studies must precede all land-disturbing activities on the Nevada Test Site. In accordance with 36 CFR Part 800, these studies consist of archaeological surveys conducted prior to the land-disturbing activities. The intent of these surveys is to identify and evaluate all cultural resources that might be adversely affected by the proposed construction activity. This report presents the final analysis of the data recovered from archaeological investigations conducted at the U19au drill site and access road. This report includes descriptions of the archaeological sites as recorded during the original survey, the research design used to guide the investigations, the method and techniques used to collect and analyze the data, and the results and interpretations of the analysis. 200 refs., 112 figs., 53 tabs.
Date:
January 1, 1991
Creator:
Henton, Gregory H. & Pippin, Lonnie C.
Object Type:
Report
System:
The UNT Digital Library
Archaeological Testing of the Lewisville Lake Shoreline, Denton County, Texas
This report describes the results of test excavations at 23 prehistoric and 16 historic sites on the periphery of Lewisville Lake, Denton County, Texas. The purpose of this report is to summarize the character and significance of the archaeological sites that were test excavated and recommendations for mitigation at those sites determined eligible for the National Register.
Date:
1991
Creator:
Brown, Kenneth L. (Kenneth Lynn), 1951- & Lebo, Susan A.
Object Type:
Report
System:
The UNT Digital Library
Army Exploration in the American West, 1803-1863
Book containing the history of the role of the United States Army and its Topographical Engineers in exploring lands west of the Mississippi River between 1838 and 1863. This includes surveys of battlefronts, railroads, and boundaries.
Date:
1991
Creator:
Goetzmann, William H.
Object Type:
Book
System:
The Portal to Texas History
Big County Obituaries: 1991
Compiled transcription of obituaries printed in the Abilene Reporter-News during 1991, collected by volunteers and personnel of the Abilene Public Library.
Date:
1991
Creator:
Mount, Ann
Object Type:
Text
System:
The Portal to Texas History
The Bronco, Yearbook of Hardin-Simmons University, 1991
Yearbook for Hardin-Simmons University in Abilene, Texas includes photos of and information about the university, student body, professors, and organizations.
Date:
1991
Creator:
Hardin-Simmons University
Object Type:
Yearbook
System:
The Portal to Texas History
Bulletin of the Texas Archeological Society, Volume 60, 1989
Annual journal of the Texas Archeological Society documenting research and findings of members as well as activities of the organization.
Date:
1991
Creator:
Texas Archeological Society
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Characterization of Oil and Gas Reservoir Heterogeneity
The objective of the cooperative research program is to characterize Alaskan reservoirs in terms of their reserves, physical and chemical properties, geologic configuration and structure, and the development potential. The tasks completed during this period include: (1) geologic reservoir description of Endicott Field; (2) petrographic characterization of core samples taken from selected stratigraphic horizons of the West Sak and Ugnu (Brookian) wells; (3) development of a polydispersed thermodynamic model for predicting asphaltene equilibria and asphaltene precipitation from crude oil-solvent mixtures, and (4) preliminary geologic description of the Milne Point Unit.
Date:
January 1, 1991
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Characterizing hydraulically fractured reservoirs using induced microearthquakes
Hydraulic fracturing is a common method employed to increase the production of oil and gas fields. Recently, there has been increased interest in monitoring the microearthquakes induced by hydraulic fracturing as a means of obtaining data to characterize reservoir changeS induced by the injection. Two types of microearthquakes have been observed during hydraulic fracturing. Tensile events have been observed and modeled as the parting of the surfaces of a fracture. A majority of the events observed have been shear-slip events, where two sides of a fault plane slip parallel to each other but in opposite directions. The locations of the microearthquakes can be analyzed to determine regions where significant seismic energy was released, which presumably are regions where injected fluid penetrated into the rock along pre-existing fractures or zones of weakness. The spatial patterns in the locations can be analyzed to fine regions where events cluster along planes, which are interpreted to be the dominant fluid flow paths. Imaging methods can also be applied to the travel time and waveform data to obtain direct evidence for the locations of the fractures or fracture zones. 27 refs., 2 figs.
Date:
January 1, 1991
Creator:
Fehler, M.
Object Type:
Article
System:
The UNT Digital Library
Church & Synagogue Libraries, Volume 24, Number 4, January/February 1991
Bimonthly publication of the Church and Synagogue Library Association, containing news and events related to the organization and its members, reviews of books and other materials, and stories of interest to the management of congregational libraries.
Date:
January 1991
Creator:
Church and Synagogue Library Association
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
The Clearlake Hot Dry Rock geothermal project: Institutional policies, administrative issues, and technical tasks
The Clearlake Project is a three-party collaboration between the California Energy Commission, City of Clearlake, and Los Alamos National Laboratory. It aims to develop a deep hot, dry geothermal resource under the city. The project is funded by the Commission, and administered by the City. Technical operations are conducted by Laboratory staff and resources seconded from the Hot Dry Rock program. In addition to the normal geothermal exploration problems of predicting geological and geophysical properties of the subsurface, there are uncertainties as to what further material and environmental parameters are relevant, and how they might be measured. In addition to technical factors, policy objectives are an influence in choosing the most appropriate development scenario. 11 refs., 4 figs.
Date:
January 1, 1991
Creator:
Burns, K.L.
Object Type:
Article
System:
The UNT Digital Library
Colloids in groundwater: Their mobilization, subsurface transport, and sorption affinity for toxic chemicals
During the initial project period, we have pursued several activities with the overall goal of characterizing the roles of colloid in groundwater. First, we have collected soil cores from a site where we have previously found large quantities of kaolinite colloids in the groundwater. We have intensely investigated these cores to test our hypothesis that the colloids have been mobilized as a result of iron oxide dissolution. Next, we have constructed a soil core system in our laboratory with which we are attempting to mimic the factors that we think are governing colloid transport in the subsurface. Finally, we have pursued the issue of how well organic chemicals bind to the kinds of colloids that we are seeing at field sites. Together, with our knowledge of colloid mobility, we anticipate that this sorption data will enable us to predict the influence of groundwater colloids on contaminant fates in the subsurface. Our progress in each of these activities is described in this report. 7 refs., 12 figs.
Date:
January 1, 1991
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Conceptual geologic model and native state model of the Roosevelt Hot Springs hydrothermal system
A conceptual geologic model of the Roosevelt Hot Springs hydrothermal system was developed by a review of the available literature. The hydrothermal system consists of a meteoric recharge area in the Mineral Mountains, fluid circulation paths to depth, a heat source, and an outflow plume. A conceptual model based on the available data can be simulated in the native state using parameters that fall within observed ranges. The model temperatures, recharge rates, and fluid travel times are sensitive to the permeability in the Mineral Mountains. The simulation results suggests the presence of a magma chamber at depth as the likely heat source. A two-dimensional study of the hydrothermal system can be used to establish boundary conditions for further study of the geothermal reservoir.
Date:
January 1, 1991
Creator:
Faulder, D. D.
Object Type:
Article
System:
The UNT Digital Library
Conceptual geologic model and native state model of the Roosevelt Hot Springs hydrothermal system
A conceptual geologic model of the Roosevelt Hot Springs hydrothermal system was developed by a review of the available literature. The hydrothermal system consists of a meteoric recharge area in the Mineral Mountains, fluid circulation paths to depth, a heat source, and an outflow plume. A conceptual model based on the available data can be simulated in the native state using parameters that fall within observed ranges. The model temperatures, recharge rates, and fluid travel times are sensitive to the permeability in the Mineral Mountains. The simulation results suggests the presence of a magma chamber at depth as the likely heat source. A two-dimensional study of the hydrothermal system can be used to establish boundary conditions for further study of the geothermal reservoir. 33 refs., 9 figs.
Date:
January 1, 1991
Creator:
Faulder, D. D.
Object Type:
Article
System:
The UNT Digital Library
Conceptualization of a hypothetical high-level nuclear waste repository site in unsaturated, fractured tuff
Under the sponsorship of the US Nuclear Regulatory Commission (NRC), Sandia National Laboratories (SNL) is developing a performance assessment methodology for the analysis of long-term disposal and isolation of high-level nuclear wastes (HLW) in alternative geologic media. As part of this exercise, SNL created a conceptualization of ground-water flow and radionuclide transport in the far field of a hypothetical HLW repository site located in unsaturated, fractured tuff formations. This study provides a foundation for the development of conceptual mathematical, and numerical models to be used in this performance assessment methodology. This conceptualization is site specific in terms of geometry, the regional ground-water flow system, stratigraphy, and structure in that these are based on information from Yucca Mountain located on the Nevada Test Site. However, in terms of processes in unsaturated, fractured, porous media, the model is generic. This report also provides a review and evaluation of previously proposed conceptual models of unsaturated and saturated flow and solute transport. This report provides a qualitative description of a hypothetical HLW repository site in fractured tuff. However, evaluation of the current knowledge of flow and transport at Yucca Mountain does not yield a single conceptual model. Instead, multiple conceptual models are possible given …
Date:
January 1991
Creator:
Parsons, A. M.; Olague, N. E. & Gallegos, D. P.
Object Type:
Report
System:
The UNT Digital Library
A coupled model of fluid flow in jointed rock
We present a fully coupled model of fluid flow in jointed rock, where the fluid flow depends on the joint openings and the joint openings depend on the fluid pressure. The joints and rock blocks are modeled discretely using the finite element method. Solutions for the fluid and rock are obtained and iteration is performed until both solutions converge. Example applications include an examination of the effects of back-pressure on flow in a geothermal reservoir and transient fluid injection into a reservoir.
Date:
January 1, 1991
Creator:
Swenson, Daniel; Martineau, Rick; James, Mark & Brown, Don
Object Type:
Article
System:
The UNT Digital Library
Current techniques in acid-chloride corrosion control and monitoring at The Geysers
Acid chloride corrosion of geothermal well casings, production piping and power plant equipment has resulted in costly corrosion damage, frequent curtailments of power plants and the permanent shut-in of wells in certain areas of The Geysers. Techniques have been developed to mitigate these corrosion problems, allowing continued production of steam from high chloride wells with minimal impact on production and power generation facilities.The optimization of water and caustic steam scrubbing, steam/liquid separation and process fluid chemistry has led to effective and reliable corrosion mitigation systems currently in routine use at The Geysers. When properly operated, these systems can yield steam purities equal to or greater than those encountered in areas of The Geysers where chloride corrosion is not a problem. Developments in corrosion monitoring techniques, steam sampling and analytical methodologies for trace impurities, and computer modeling of the fluid chemistry has been instrumental in the success of this technology.
Date:
January 1, 1991
Creator:
Hirtz, Paul; Buck, Cliff & Kunzman, Russell
Object Type:
Article
System:
The UNT Digital Library
Department of Petroleum Engineering and Center for Petroleum and Geosystems Engineering annual report, 1990--1991 academic year
The Department of Petroleum Engineering at The University of Texas at Austin is one of more than 20 such departments in the United States and more than 40 worldwide. The department has more than 20 faculty members and, as of the fall of 1990, 146 undergraduate and 156 graduate students. During the 1990--91 academic year, undergraduate enrollment is up slightly from the several downturns that began in 1986; graduate enrollment continues to increase, significantly in the number of Ph.D. candidates enrolled. The 1990--91 academic year was one of consolidation of gains. A remote teaching program in the Midland-Odessa area was initiated. During 1991, the Center for Petroleum and Geosystems Engineering (CPGE) continued its large, diversified research activities related to oil, gas and geopressured/geothermal energy production, energy and mineral resources analysis, and added new research projects in other areas such as groundwater remediation. Many of these research projects included interdisciplinary efforts involving faculty, research scientists and graduate students in chemistry, mathematics, geology, geophysics, engineering mechanics, chemical engineering, microbiology and other disciplines. Several projects were undertaken in cooperation with either the Bureau of Economic Geology or the Institute for Geophysics at The University of Texas at Austin. Collaborative research projects with scientists …
Date:
January 1, 1991
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library