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15th Street News (Midwest City, Okla.), Vol. 9, No. 10, Ed. 1 Thursday, January 31, 1980
Newspaper from Oscar Rose Junior College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
January 31, 1980
Creator:
Young, Paul
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
15th Street News (Midwest City, Okla.), Vol. 11, No. 24, Ed. 1 Wednesday, March 31, 1982
Newspaper from Oscar Rose Junior College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
March 31, 1982
Creator:
Thomas, Betty
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
15th Street News (Midwest City, Okla.), Vol. 14, No. 15, Ed. 1 Thursday, January 31, 1985
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
January 31, 1985
Creator:
Defrange, Mark
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
15th Street News (Midwest City, Okla.), Vol. 15, No. 10, Ed. 1 Friday, October 31, 1986
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
October 31, 1986
Creator:
Intrieri, Danette
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
15th Street News (Midwest City, Okla.), Vol. 17, No. 24, Ed. 1 Friday, March 31, 1989
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
March 31, 1989
Creator:
Pierce, James
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
[1988 financial report and January 1989 financial report]
Financial summary for the year 1988, and a financial report for the month of January, 1989.
Date:
January 31, 1989
Creator:
Lesbian/Gay Political Coalition of Dallas
Object Type:
Text
System:
The UNT Digital Library
[1st Texas Battalion Drum and Fife Corp]
Photograph of the 1st Texas Battalion Drum and Fife Corp. performing at the 15th Annual Texas Folklife Festival in San Antonio, Texas. The two rows of Corps members wear white shirts, red suspenders, and black pants and a black hats. Members of the audience watch the performance around the open, grassy area.
Date:
[1986-07-31..1986-08-03]
Creator:
unknown
Object Type:
Photograph
System:
The Portal to Texas History
[2nd annual "Medal of Merit" awards banquet]
Audio cassette from The Black Academy of Arts and Letters recorded during the Second Annual Medal of Merit Awards Banquet held on May 31, 1980 at the Downtown Dallas Sheraton Hotel. The tape includes two tracks of intelligible audio of individuals speaking broken up by periods of applause.
Date:
May 31, 1980
Creator:
unknown
Object Type:
Sound
System:
The UNT Digital Library
Acoustic Emission Under Biaxial Stresses in Unflawed 21-6-9 and 304 Stainless Steel
Acoustic emission (AE) testing has been carried out with uniaxial and biaxial (2:1 stress ratio) stressing of smooth samples of 21-6-9 and 304 stainless steel (SS). Uniaxial testing was done with simple tensile and compression samples as well as with the special biaxial specimens. Biaxial tensile stressing was accomplished with a specially designed specimen, which had been used previously to characterize AE in 7075 aluminum under biaxial stressing. Results were obtained for air-melt and for vacuum-melt samples of 21-6-9 SS. The air-melt samples contain considerably more inclusion particles than the vacuum-melt samples. For the 304 SS, as received material was examined. To allow AE correlations with microstructure, extensive characterization of the 21-6-9 microstructure was carried out. Significant differences in AE occur in biaxially stressed specimens as compared to uniaxially stressed samples. 15 figures, 3 tables.
Date:
October 31, 1980
Creator:
Hamstad, M. A.; Leon, E. M. & Mukherjee, A. K.
Object Type:
Article
System:
The UNT Digital Library
Acoustic microscopy with mixed-mode transducers
The new amplitude-phase acoustic microscope is versatile; it operates in a wide frequency range 1--200 MHz, with selection of longitudinal, shear, and mixed modes. This enables it to be used in many NDE applications for different kinds of materials. Besides the application examples presented in this paper (bulk defect imaging of lossy materials or at deep locations; leads of IC chip in epoxy package; amplitude images of surface crack on Si nitride ball bearing; thin Au film on quartz), this system can also be applied for residual stress and anisotropy mapping with high accuracy and good spatial resolution. 7 refs, 6 figs.
Date:
December 31, 1988
Creator:
Chou, C. H.; Parent, P. & Khuri-Yakub, B. T.
Object Type:
Article
System:
The UNT Digital Library
Active layer hydrology for Imnavait Creek, Toolik, Alaska. Annual progress report, July 1984--January 1986
In the annual hydrologic cycle, snowmelt is the most significant event at Imnavait Creek located near Toolik Lake, Alaska. Precipitation that has accumulated for more than 6 months on the surface melts in a relatively short period of 7 to 10 days once sustained melting occurs. During the ablation period, runoff dominates the hydrologic cycle. Some meltwater goes to rewetting the organic soils in the active layer. The remainder is lost primarily because of evaporation, since transpiration is not a very active process at this time. Following the snowmelt period, evapotranspiration becomes the dominate process, with base flow contributing the other watershed losses. It is important to note that the water initally lost by evapotranspiration entered the organic layer during melt. This water from the snowpack ensures that each year the various plant communities will have sufficient water to start a new summer of growth.
Date:
December 31, 1986
Creator:
Kane, D. L.
Object Type:
Report
System:
The UNT Digital Library
Adaptive significance of root grafting in trees
Root grafting has long been observed in forest trees but the adaptive significance of this trait has not been fully explained. Various authors have proposed that root grafting between trees contributes to mechanical support by linking adjacent root systems. Keeley proposes that this trait would be of greatest advantage in swamps where soils provide poor mechanical support. He provides as evidence a greenhouse study of Nyssa sylvatica Marsh in which seedlings of swamp provenance formed between-individual root grafts more frequently than upland provenance seedlings. In agreement with this within-species study, Keeley observed that arid zone species rarely exhibit grafts. Keeley also demonstrated that vines graft less commonly than trees, and herbs never do. Since the need for mechanical support coincides with this trend, these data seem to support his model. In this paper, the authors explore the mechanisms and ecological significance of root grafting, leading to predictions of root grafting incidence. Some observations support and some contradict the mechanical support hypothesis.
Date:
December 31, 1988
Creator:
Loehle, C. & Jones, R.
Object Type:
Report
System:
The UNT Digital Library
Advanced alternate planar geometry solid oxide fuel cells. Interim quarterly technical progress report, November 1, 1988--January 31, 1989
During this quarter, progress was made at Ceramatec in seal development and conductivity measurements of YIG compositions. A creep test was completed on the porous/dense/porous triilayer. IGT provided a discussion on possible interconnect materials. The following tasks are reported on: cell design analysis, program liaison and test facility preparation, cell component fabrication/development, out-of-cell tests. 9 figs, 2 tabs.
Date:
December 31, 1989
Creator:
Prouse, D.; Elangovan, S.; Khandkar, A.; Donelson, R. & Marianowski, L.
Object Type:
Report
System:
The UNT Digital Library
Advanced alternate planar geometry solid oxide fuel cells. Third interim quarterly technical progress report, July 1, 1988--September 30, 1988
The following Ceramatec tasks are reported: electrolyte development and fabrication, edge seal development/fabrication, electrode, and interconnector. The following IGT tasks are reported: cell design analysis, and program liaison and test facility preparation.
Date:
December 31, 1988
Creator:
Prouse, D.; Elangovan, S.; Khandkar, A.; Donelson, R. & Marianowski, L.
Object Type:
Report
System:
The UNT Digital Library
Advanced combustion system for industrial boilers. Quarterly technical progress report, August 1987--October 1987
The purpose of this project is to develop an advanced coal-combustion system for industrial boilers. With the new combustion system, coal could be used to replace oil and possibly gas as fuel for many industrial boilers. The advanced combustion system is comprised of several parts: (1) A new burner-design concept for coal fuels, developed from the familiar gas turbine combustor-can designs that have proven efficient, reliable, durable, and safe for the combustion of liquid fuel oils. (2) A coal storage and dense-phase feed system for injecting clean, ultrafine pulverized coal into the burner at a low velocity. (3) An automatic control system based on feedback from low-cost automotive combustion-quality transducers. A cold flow model of an initial phase of the new burner design and the associated laser flow-visualization techniques were developed during this quarter. A series of modifications of the initial cold flow model will be tested to establish details of design for the new burner. Also a 200 hp firetube boiler has been installed and tested using number 2 oil as a fuel. This boiler will be used for future combustion testing with the new burner and ultrafine pulverized coal. Additionally an ultrafine-coal injector has been designed which will …
Date:
December 31, 1987
Creator:
Attig, R. C.; Foote, J. P.; Millard, W. P.; Schulz, R. J. & Wagoner, C. L.
Object Type:
Report
System:
The UNT Digital Library
Advanced development of a pressurized ash agglomerating fluidized-bed coal gasification system: Topical report, Process analysis, FY 1983
KRW Energy Systems, Inc., is engaged in the continuing development of a pressurized, fluidized-bed gasification process at its Waltz Mill Site in Madison, Pennsylvania. The overall objective of the program is to demonstrate the viability of the KRW process for the environmentally-acceptable production of low- and medium-Btu fuel gas from a variety of fossilized carbonaceous feedstocks and industrial fuels. This report presents process analysis of the 24 ton-per-day Process Development Unit (PDU) operations and is a continuation of the process analysis work performed in 1980 and 1981. Included is work performed on PDU process data; gasification; char-ash separation; ash agglomeration; fines carryover, recycle, and consumption; deposit formation; materials; and environmental, health, and safety issues. 63 figs., 43 tabs.
Date:
July 31, 1987
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Advanced Hydride Laboratory
The Replacement Tritium Facility (RTF) is a $140 million reservoir loading and unloading facility using state-of-the-art technology, scheduled for completion in 1990 and startup in 1991. In the RTF, metal hydride technology will be used to store, separate, purify, pump, and compress hydrogen isotopes. In support of the RTF, a $3.2 million ``cold`` process demonstration facility began operation in November, 1987. The purpose of the Advanced Hydride Laboratory (AHL) is to demonstrate the RFT`s metal hydride technology by integrating the various unit operations into an overall process. While much of the RTF`s metal hydride technology had been demonstrated in laboratory bench-scale and pilot-scale units, none of the units had been operated together and integrated into an overall process.
Date:
December 31, 1989
Creator:
Horen, A. S.
Object Type:
Article
System:
The UNT Digital Library
Advanced Hydride Laboratory
Metal hydrides have been used at the Savannah River Tritium Facilities since 1984. However, the most extensive application of metal hydride technology at the Savannah River Site is being planned for the Replacement Tritium Facility, a $140 million facility schedules for completion in 1990 and startup in 1991. In the new facility, metal hydride technology will be used to store, separate, isotopically purify, pump, and compress hydrogen isotopes. In support of the Replacement Tritium Facility, a $3.2 million, ``cold,`` process demonstration facility, the Advanced Hydride Laboratory began operation in November of 1987. The purpose of the Advanced Hydride Laboratory is to demonstrate the Replacement Tritium Facility`s metal hydride technology by integrating the various unit operations into an overall process. This paper will describe the Advanced Hydride Laboratory, its role and its impact on the application of metal hydride technology to tritium handling.
Date:
December 31, 1989
Creator:
Motyka, T.
Object Type:
Article
System:
The UNT Digital Library
Advanced Limiter Test-II Program to field a toroidal belt pump limiter in the TEXTOR tokamak. Progress report, FY 1985
During the first quarter, the UCLA members of the ALT-II team worked primarily on the development of the experimental program plan and the diagnostics selection, and on the data acquisition system. These programs are discussed in this report.
Date:
December 31, 1985
Creator:
Conn, R. W. & Goebel, D. M.
Object Type:
Report
System:
The UNT Digital Library
Advanced turbine design for coal-fueled engines. Quarterly technical report, [July 1, 1989--September 30, 1989]
Coal-fueled gas turbines require the development of a number of new technologies which are being identified by METC and its Heat Engines Contractors. Three significant problems, that were Identified early in the development of coal-fueled engines, are the rapid wear of the turbine airfoils due to particulate erosion, the accumulation of deposits on portions of the airfoil surfaces due to slag deposition and the rapid corrosion of airfoils after the breakdown of surface coatings. The technology development study contained in this program is focused on improving the durability of the turbine through the development of erosion and deposition resistant airfoils and turbine operating conditions. The baseline turbine meanline design vas modified to prevent a local shock on the suction side of the rotor airfoil. New particle dimensionless parameters to be varied were determined. Three first-stage turbine meanline designs have been completed. The design of nev turbine airfoil shapes has been initiated. The calculation of particle trajectories has been completed for the baseline turbine vane and blade airfoils. The erosion model described in the previous technical report vas incorporated in the Post Processing Trajectory Analysis Code.
Date:
December 31, 1989
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Advanced Water-Cooled Phosphoric Acid Fuel Cell Development. Quarterly technical progress report No. 5, July--September 1988
The initial conceptual design configuration was completed. Baseline on-site electrodes were tested at electric utility conditions in 2 x 2 inch cells. GSB-18P cathodes were fabricated. Design of small area development stack was initiated and long lead time items ordered. Molded cooler thermal cycling tests were initiated. Equipment to evaluate alternative manifold coating processes and materials were procured.
Date:
December 31, 1988
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Advanced Water-Cooled Phosphoric Acid Fuel Cell Development. Quarterly technical progress report No. 14, April--June 1989
Electrode substrate handsheets were formed. A new electrode edge seal with in-plane bubble pressures 40--50 psid and through-plane pressures 8--9 psid was demonstrated. A new polymeric edge seal for ERP`s with bubble pressure greater than 30 psid was tested and shown to be stable after 5 thermal cycles. A thin (1.2 mil) natrix was applied to full-size electrodes using a curtain coater. Full-size coolers were fabricated using both molded and commercial graphite holders.
Date:
December 31, 1989
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Advanced water-cooled phosphoric acid fuel cell development. Quarterly technical progress report No. 17, July, August, September, 1989
150 electrolyte reservoir plates (ERP`s) were carbonized for the small area short stack. A process was developed which allows thin (1--2 mil) matrix to be applied to full-size electrodes using a curtain coater. Full-size cooler samples were molded with and without cooler tube arrays. Two alternative cooler hoses were evaluated and found to be acceptable based on 1400 h testing at simulated conditions.
Date:
December 31, 1989
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Advanced water-cooled phosphoric acid fuel cell development. Quarterly technical progress report No. 20, October, November, December, 1989
Fabrication of repeat parts for small area short stack is underway: 100 electrode substrates and 150 ERP substrates were graphitized, and 30 electrode substrates were run through each manufacturing step. Teflon content and compaction pressure of shop-made electrodes for the small area short stack was optimized based on single cell tests. A single cell with GSB-18P catalyst and 1 mg/cm{sup 2} loading is performing very well; performance is 0.66 V per cell after 1200 h at 300 ASF. 3 integral separator plate configurations have been selected for verification in the upcoming short stack. Bubble pressures over 7 psid have been demonstrated in filler bands applied with a production curtain and coating process. 5 full-size (small area) coolers were molded, and encapsulation development for molded and commercial graphite coolers continued.
Date:
December 31, 1989
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library