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UNT Libraries Special Collections
1,525
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303
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161
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153
Texas Parks & Wildlife Department
128
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110
National WASP WWII Museum
84
Hoston History Research Center at Houston Public Library
70
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KXAS-NBC 5 News Collection
1,309
Oklahoma Publishing Company Photography Collection
730
Harris and Eliza Kempner
303
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168
Oral History Association
148
Convair/General Dynamics Newsletters
146
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143
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120
Texas Digital Newspaper Program
120
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118
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[News Script: Sirhan]
Script from the WBAP-TV/NBC station in Fort Worth, Texas relating a news story.
Date:
March 6, 1969
Creator:
WBAP-TV (Television station : Fort Worth, Tex.)
Object Type:
Script
System:
The UNT Digital Library
[News Script: Sirhan]
Script from the WBAP-TV/NBC station in Fort Worth, Texas relating a news story.
Date:
March 5, 1969
Creator:
WBAP-TV (Television station : Fort Worth, Tex.)
Object Type:
Script
System:
The UNT Digital Library
Proceedings of the conference on research for the development of geothermal energy resources held in Pasadena, California, September 23--25, 1974
None
Date:
December 31, 1974
Creator:
unknown
Object Type:
Article
System:
The UNT Digital Library
Fixed tilt solar collector employing reversible vee-trough reflectors and vacuum tube receivers for solar heating and cooling systems. Final report. JPL Publication 77-78
The objective of the Vee-Trough/Vacuum Tube Collector (VTVTC) Project was to prove the usefulness of vee-trough concentrators in improving the efficiency and reducing the cost of collectors assembled from evacuated tube receivers. The VTVTC was analyzed rigorously and various mathematical models were developed to calculate the optical performance of the vee-trough concentrator and the thermal performance of the evacuated tube receiver. A test bed was constructed to verify the mathematical analyses and compare reflectors made out of glass, Alzak and aluminized FEP Teflon. Tests were run at temperatures ranging from 95 to 180/sup 0/C during the months of April, May, June, July and August 1977. Vee-trough collector efficiencies of 35 to 40% were observed at an operating temperature of about 175/sup 0/C. Test results compared well with the calculated values. Test data covering a complete day are presented for selected dates throughout the test season. Predicted daily useful heat collection and efficiency values are presented for a year's duration at operation temperatures ranging from 65 to 230/sup 0/C. Estimated collector costs and resulting thermal energy costs are presented. Analytical and experimental results are discussed along with a complete economic evaulation. Recommendations for the continuation of the project are presented.
Date:
December 1, 1977
Creator:
Selcuk, M. K.
Object Type:
Report
System:
The UNT Digital Library
[News Clip: Simpson]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
July 27, 1994, 10:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Koslow]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
June 21, 1994, 5:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
Evaluation and verification of epitaxial process sequence for silicon solar-cell production. Final program summary report
Progress, present status, and data are presented for work in the areas of silicon substrate materials epitaxial substrates and epitaxial growth and of solar cells production process sequence determination especially, and also in the areas of process specification, minimodule design, process and design verification, and cost evaluation and projections. (LEW)
Date:
November 1, 1981
Creator:
Redfield, D.
Object Type:
Report
System:
The UNT Digital Library
Helical Screw Expander Evaluation Project. Final report
A functional 1-MW geothermal electric power plant that featured a helical screw expander was produced and then tested in Utah in 1978 to 1979 with a demonstrated average performance of approximately 45% machine efficiency over a wide range of test conditions in noncondensing operation on two-phase geothermal fluids. The Project also produced a computer-equipped data system, an instrumentation and control van, and a 1000-kW variable load bank, all integrated into a test array designed for operation at a variety of remote test sites. Additional testing was performed in Mexico in 1980 under a cooperative test program using the same test array, and machine efficiency was measured at 62% maximum with the rotors partially coated with scale, compared with approximately 54% maximum in Utah with uncoated rotors, confirming the importance of scale deposits within the machine on performance. Data are presented for the Utah testing and for the noncondensing phases of the testing in Mexico. Test time logged was 437 hours during the Utah tests and 1101 hours during the Mexico tests.
Date:
March 1, 1982
Creator:
McKay, R.
Object Type:
Report
System:
The UNT Digital Library
[News Clip: Simpson]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
December 13, 1994, 10:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
Development of alternative oxygen production source using a zirconia solid electrolyte membrane
The objective of this multiyear effort was the development, fabrication and testing of a zirconia oxygen production module capable of delivering approximately 100 liters/minute (LPM) of oxygen. The work discussed in this report consists of development and improvement of the zirconia cell along with manufacture of cell components, preliminary design of the final plant, additional economic analysis and industrial participation. (VC)
Date:
August 1, 1990
Creator:
Suitor, J. W.; Clark, D. J. & Losey, R. W.
Object Type:
Report
System:
The UNT Digital Library
[News Clip: Simpson]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
July 1994
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: King verdict]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
April 19, 1994, 10:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
Energy conservation in citrus processing. Technical progress report, October 1, 1979-March 31, 1980
The Sunkist Citrus Plant in Ontario, California, processes about 6 million pounds of citrus fruit per day to make products which include frozen concentrated juice; chilled, pasteurized, natural strength juice; molasses from peel; dried meal from peel; pectin; citrus oil; and bioflavonoids. The energy intensive operations at the plant include concentration, drying, and refrigeration. The objective of the two-year two-phase project is to identify an economically viable alternative to the existing method of meeting energy requirements. Progress on the technical work of Phase I is reported. The following are summarized: requirements (energy price projection, atmospheric emission requirements, citrus juice quality constraints, economic evaluations); characterization (basic citrus processing operations, energy consumption and fruit processed vs time, identification and measurement of energy uses, energy balance for a typical citrus juice evaporator); and thermodynamic analysis (heat pump model, thermal evaporator, and co-generation model).
Date:
June 15, 1980
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Direct Conversion Technology
The overall objective of the Direct Conversion Technology task is to develop an experimentally verified technology base for promising direct conversion systems that have potential application for energy conservation in the end-use sectors. Initially, two systems were selected for exploratory research and advanced development. These are Alkali Metal Thermal-to-Electric Converter (AMTEC) and Two-Phase Liquid Metal MD Generator (LMMHD). This report describes progress that has been made during the first six months of 1992 on research activities associated with these two systems. (GHH)
Date:
July 1, 1992
Creator:
Back, L.H.; Fabris, G. & Ryan, M.A.
Object Type:
Report
System:
The UNT Digital Library
Theory and tests of two-phase turbines
Two-phase turbines open the possibility of new types of power cycles operating with extremely wet mixtures of steam and water, organic fluids, or immiscible liquids and gases. Possible applications are geothermal power, waste-heat recovery, refrigerant expansion, solar conversion, transportation turbine engines, and engine bottoming cycles. A theoretical model for two-phase impulse turbines was developed. Apparatus was constructed for testing one- and two-stage turbines (using speed decrease from stage to stage). Turbines were tested with water-and-nitrogen mixtures and Refrigerant 22. Nozzle efficiencies were 0.78 (measured) and 0.72 (theoretical) for water-and-nitrogen mixtures at a water/nitrogen mixture ratio of 68, by mass; and 0.89 (measured) and 0.84 (theoretical) for Refrigerant 22 expanding from 0.02 quality to 0.28 quality. Blade efficiencies (shaft power before windage and bearing loss divided by nozzle jet power) were 0.63 (measured) and 0.71 (theoretical) for water-and-nitrogen mixtures and 0.62 (measured) and 0.63 (theoretical) for Refrigerant 22 with a single-stage turbine, and 0.70 (measured) and 0.85 (theoretical) for water-and-nitrogen mixtures with a two-stage turbine.
Date:
March 15, 1982
Creator:
Elliot, D.G.
Object Type:
Report
System:
The UNT Digital Library
[Photograph 2012.201.B0051.0482]
Photograph taken for a story in the Daily Oklahoman newspaper. Caption: "Rescue team looks down on wreckage of Air West jetliner at bottom of gorge. Rescue workers worked their way along a rugged canyon Monday looking for bodies from the collision of a Hughes Air West airliner and a Marine Corps jet fighter."
Date:
June 8, 1971
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0295.0132]
Photograph taken for a newspaper owned by the Oklahoma Publishing Company.
Date:
unknown
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0228.0515]
Photograph taken for a story in the Oklahoma Times newspaper. Caption: "A former Oklahoma Cityan is co-author of a new book that tells young people how to get into show business."
Date:
January 27, 1964
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0413.0156]
Photograph taken for a story in the Oklahoma Times newspaper. Caption: "A Texas oil millionaire Monday night spent $125,000 on a party to prove that Texans can be genteel."
Date:
January 1, 1957
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0357.0061]
Photograph taken for a story in the Daily Oklahoman newspaper. Caption: "Some months ago when the Do-It-Yourself show was in the planning stage, Steve Ellingson was asked to come here from his Van Nuys Calif., pattern ranch and serve as official host."
Date:
May 16, 1954
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0234.0513]
Photograph taken for a story in the Daily Oklahoman newspaper. Caption: "Houseguest of her parents, Mr. and Mrs. Robert A. Hefner, 201 NW 14, is Mrs. Lee Combs jr., Los Angeles."
Date:
September 28, 1958
Creator:
Miller, Joe
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0357.0059]
Photograph taken for a story in the Daily Oklahoman newspaper. Caption: "Some months ago when the Do-It-Yourself show was in the planning stage, Steve Ellingson was asked to come here from his Van Nuys, Calif., pattern ranch and serve as official host."
Date:
May 16, 1954
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0234.0523]
Photograph taken for a story in the Oklahoma Times newspaper. Caption: "Enroute To one of the parties given in their honor during their week's visit in the city are Miss Lyn Combs and her fiancé, Michael Chumo, Los Angeles."
Date:
September 24, 1964
Creator:
Miller, Joe
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0308.0105]
Photograph taken for a newspaper owned by the Oklahoma Publishing Company.
Date:
June 27, 1947
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History