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Results:
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[Advertisement: Project Pentamidine moves to new headquarters]
Advertisement for a treatment for HIV-positive adults.
Date:
January 15, 1992
Creator:
unknown
Object Type:
Text
System:
The UNT Digital Library
Air gun test evaluation
A mechanical shock testing apparatus is used for testing the response of components subject to large accelerations in hostile environments. The test acceleration is provided by the impact of a bullet against a plate on which the component to be tested is mounted. This report describes a series of experiments that were performed to determine the dependence of the air gun test apparatus performance on incremental changes in the hardware configurations, changes in the pressure used to drive the bullet, and different accelerometers. The effect of variation of these experimental factors on the measured acceleration was determined using a Taguchi screening experimental design. Experimental settings were determined that can be used to operate the tester with a measured output within acceleration specifications.
Date:
January 15, 1992
Creator:
Carleton, J.J. II; Fox, L. & Rudy, C.R.
Object Type:
Report
System:
The UNT Digital Library
The Allen American (Allen, Tex.), Vol. 23, No. 5, Ed. 1 Wednesday, January 15, 1992
Semiweekly newspaper from Allen, Texas that includes local, state, and national news along with advertising.
Date:
January 15, 1992
Creator:
Hutchison, Mark & Epperson, Wayne
Object Type:
Newspaper
System:
The Portal to Texas History
Altus Times (Altus, Okla.), Vol. 91, No. 260, Ed. 1 Wednesday, January 15, 1992
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 15, 1992
Creator:
Lomenick, Rick
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Aransas Pass Progress (Aransas Pass, Tex.), Vol. 83, No. 47, Ed. 1 Wednesday, January 15, 1992
Weekly newspaper from Aransas Pass, Texas that includes local, state, and national news along with advertising.
Date:
January 15, 1992
Creator:
Cole, Mary
Object Type:
Newspaper
System:
The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 70, No. 65, Ed. 1 Wednesday, January 15, 1992
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
January 15, 1992
Creator:
Brown, Leon
Object Type:
Newspaper
System:
The Portal to Texas History
The Boerne Star (Boerne, Tex.), Vol. 88, No. 5, Ed. 1 Wednesday, January 15, 1992
Weekly newspaper from Boerne, Texas that includes local, state, and national news along with advertising.
Date:
January 15, 1992
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Characterization of a 1,4-. beta. -D-glucan synthase from Dictyostelium discoideum
Various aspects of research concerning Dictyostelium discoideum are presented. The initial focus of this project was upon: the characterization of potential probes for the cellulose synthase (antibody and nucleic acid), the determination of the cultural induction conditions of cellulose synthesis, the solubilization of the enzyme activity, the development of a non-inhibitory disruption buffer, the generation and isolation of mutant strains deficient in cellulose synthesis, and the development of the capability to determine the degree of polymerization of the in vitro product. I have briefly summarized our most significant findings with only selected data sets being shown in this report in the interest of brevity.
Date:
January 15, 1992
Creator:
Blanton, R.L.
Object Type:
Report
System:
The UNT Digital Library
Characterization of a 1,4-{beta}-D-glucan synthase from Dictyostelium discoideum. Progress report, May 1990--January 1992
Various aspects of research concerning Dictyostelium discoideum are presented. The initial focus of this project was upon: the characterization of potential probes for the cellulose synthase (antibody and nucleic acid), the determination of the cultural induction conditions of cellulose synthesis, the solubilization of the enzyme activity, the development of a non-inhibitory disruption buffer, the generation and isolation of mutant strains deficient in cellulose synthesis, and the development of the capability to determine the degree of polymerization of the in vitro product. I have briefly summarized our most significant findings with only selected data sets being shown in this report in the interest of brevity.
Date:
January 15, 1992
Creator:
Blanton, R. L.
Object Type:
Report
System:
The UNT Digital Library
Chickasha Daily Express (Chickasha, Okla.), Vol. 100, No. 262, Ed. 1 Wednesday, January 15, 1992
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 15, 1992
Creator:
Plummer, George
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Clifton Record (Clifton, Tex.), Vol. 97, No. 3, Ed. 1 Wednesday, January 15, 1992
Weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date:
January 15, 1992
Creator:
Smith, W. Leon
Object Type:
Newspaper
System:
The Portal to Texas History
Collegian (Hurst, Tex.), Vol. 4, No. 13, Ed. 1 Wednesday, January 15, 1992
Weekly student newspaper published in Hurst, Texas serving the Tarrant County Junior College District that includes school news and information along with advertising.
Date:
January 15, 1992
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Colony Leader (The Colony, Tex.), Vol. 11, No. 8, Ed. 1 Wednesday, January 15, 1992
Weekly newspaper from The Colony, Texas that includes local, state, and national news along with advertising.
Date:
January 15, 1992
Creator:
Epperson, Wayne & Ball, Jeffrey
Object Type:
Newspaper
System:
The Portal to Texas History
Congregation Beth Israel Bulletin, Volume 138, Number 10, January 1992
Newsletter of Congregation Beth Israel in Houston, including news and events, upcoming services, member announcements, editorials, and other information of interest to congregants.
Date:
January 15, 1992
Creator:
Congregation Beth Israel (Houston, Tex.)
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Duval County Picture (San Diego, Tex.), Vol. 7, No. 2, Ed. 1 Wednesday, January 15, 1992
Weekly newspaper from San Diego, Texas that includes local, state, and national news along with advertising.
Date:
January 15, 1992
Creator:
Cardenas, Alfredo E.
Object Type:
Newspaper
System:
The Portal to Texas History
Electrochemical and optical studies of model photosynthetic systems
The objective of this research is to obtain a better understanding of the relationship between the structural organization of photosynthetic pigments and their spectroscopic and electrochemical properties. Defined model systems were studied first. These included the least ordered (solutions) through the most highly ordered (Langmuir-Blodgett (LB) monolayers and self-assembled monolayers) systems containing BChl, BPheo, and UQ. Molecules other than the photosynthetic pigments and quinones were also examined, including chromophores (i.e. surface active cyanine dyes and phtahlocyanines) an redox active compounds (methyl viologen (MV) and surfactant ferrocenes), in order to develop the techniques needed to study the photosynthetic components. Because the chlorophylls are photosensitive and labile, it was easier first to develop procedures using stable species. Three different techniques were used to characterize these model systems. These included electrochemical techniques for determining the standard oxidation and reduction potentials of the photosynthetic components as well as methods for determining the heterogeneous electron transfer rate constants for BChl and BPheo at metal electrodes (Pt and Au). Resonance Raman (RR) and surface enhanced resonance Raman (SERR) spectroscopy were used to determine the spectra of the photosynthetic pigments and model compounds. SERRS was also used to study several types of photosynthetic preparations.
Date:
January 15, 1992
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Electrochemical and optical studies of model photosynthetic systems. Final progress report, July 1, 1984--August 31, 1989
The objective of this research is to obtain a better understanding of the relationship between the structural organization of photosynthetic pigments and their spectroscopic and electrochemical properties. Defined model systems were studied first. These included the least ordered (solutions) through the most highly ordered (Langmuir-Blodgett (LB) monolayers and self-assembled monolayers) systems containing BChl, BPheo, and UQ. Molecules other than the photosynthetic pigments and quinones were also examined, including chromophores (i.e. surface active cyanine dyes and phtahlocyanines) an redox active compounds (methyl viologen (MV) and surfactant ferrocenes), in order to develop the techniques needed to study the photosynthetic components. Because the chlorophylls are photosensitive and labile, it was easier first to develop procedures using stable species. Three different techniques were used to characterize these model systems. These included electrochemical techniques for determining the standard oxidation and reduction potentials of the photosynthetic components as well as methods for determining the heterogeneous electron transfer rate constants for BChl and BPheo at metal electrodes (Pt and Au). Resonance Raman (RR) and surface enhanced resonance Raman (SERR) spectroscopy were used to determine the spectra of the photosynthetic pigments and model compounds. SERRS was also used to study several types of photosynthetic preparations.
Date:
January 15, 1992
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Enchancing the use of coals by gas reburning-sorbent injection
The objective of this project is to evaluate and demonstrate a cost effective emission control technology for acid rain precursors, oxides of nitrogen (NO{sub x}) and sulfur (SO{sub x}), on two coal fired utility boilers in Illinois. The units selected are representative of pre-NSPS design practices: tangential and cyclone fired. Work on a third unit, wall fired, has been stopped because of funding limitations. The specific objectives are to demonstrate reductions of 60 percent in NO{sub x} and 50 percent in SO{sub x} emissions, by a combination of two developed technologies, gas reburning (GR) and sorbent injection (SI). With GR, about 80--85 percent of the coal fuel is fired in the primary combustion zone. The balance of the fuel is added downstream as natural gas to create a slightly fuel rich environment in which NO{sub x} is converted to N{sub 2}. The combustion process is completed by overfire air addition. SO{sub x} emissions are reduced by injecting dry sorbents (usually calcium based) into the upper furnace. The sorbents trap SO{sub x} as solid sulfates that are collected in the particulate control device.
Date:
January 15, 1992
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Enchancing the use of coals by gas reburning-sorbent injection. Quarterly report No. 17, October 1, 1991--December 31, 1991
The objective of this project is to evaluate and demonstrate a cost effective emission control technology for acid rain precursors, oxides of nitrogen (NO{sub x}) and sulfur (SO{sub x}), on two coal fired utility boilers in Illinois. The units selected are representative of pre-NSPS design practices: tangential and cyclone fired. Work on a third unit, wall fired, has been stopped because of funding limitations. The specific objectives are to demonstrate reductions of 60 percent in NO{sub x} and 50 percent in SO{sub x} emissions, by a combination of two developed technologies, gas reburning (GR) and sorbent injection (SI). With GR, about 80--85 percent of the coal fuel is fired in the primary combustion zone. The balance of the fuel is added downstream as natural gas to create a slightly fuel rich environment in which NO{sub x} is converted to N{sub 2}. The combustion process is completed by overfire air addition. SO{sub x} emissions are reduced by injecting dry sorbents (usually calcium based) into the upper furnace. The sorbents trap SO{sub x} as solid sulfates that are collected in the particulate control device.
Date:
January 15, 1992
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Evaluation of gas-reburning and low NO{sub x} burners on a wall fired boiler. Technical progress report No. 5, October 1--December 31, 1991
Low NO{sub x} burners operate on the principle of delayed mixing between the coal fuel and burner air, so that less NO{sub x} is formed. Gas reburning is a combustion modification technique that consists of firing 80--85 percent of the fuel corresponding to the total heat release in the lower furnace. Reduction of NO{sub x} to molecular nitrogen (N{sub 2}) is accomplished via the downstream injection of the remaining fuel requirement in the form of natural gas (which also reduces the total SO{sub x} emissions). In a third stage, burnout air is injected at the lower temperatures in the upper furnace to complete the combustion process without generating significant additional NO{sub x}. The specific goal of this project is to demonstrate NO{sub x} emission reductions of 75 percent or more as a result of combing Low NO{sub x} Burners and Gas Reburning on a utility boiler having the design characteristics mentioned above. A Host Site Agreement has been signed by EER and a utility company in the State of Colorado: Public Service Company of Colorado (Cherokee Unit No. 3, 172 MW{sub e}) front wall fired boiler near Denver.
Date:
January 15, 1992
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Evaluation of Gas-Reburning and Low NOx Burners on a Wall Fired Boiler
Low NO{sub x} burners operate on the principle of delayed mixing between the coal fuel and burner air, so that less NO{sub x} is formed. Gas reburning is a combustion modification technique that consists of firing 80--85 percent of the fuel corresponding to the total heat release in the lower furnace. Reduction of NO{sub x} to molecular nitrogen (N{sub 2}) is accomplished via the downstream injection of the remaining fuel requirement in the form of natural gas (which also reduces the total SO{sub x} emissions). In a third stage, burnout air is injected at the lower temperatures in the upper furnace to complete the combustion process without generating significant additional NO{sub x}. The specific goal of this project is to demonstrate NO{sub x} emission reductions of 75 percent or more as a result of combing Low NO{sub x} Burners and Gas Reburning on a utility boiler having the design characteristics mentioned above. A Host Site Agreement has been signed by EER and a utility company in the State of Colorado: Public Service Company of Colorado (Cherokee Unit No. 3, 172 MW{sub e}) front wall fired boiler near Denver.
Date:
January 15, 1992
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
The Gayly Oklahoman (Oklahoma City, Okla.), Vol. 10, No. 2, Ed. 1 Wednesday, January 15, 1992
Semi-monthly newspaper from Oklahoma City, Oklahoma that includes local, state, and national news and advertising of interest to the Lesbian, Gay, Bisexual, and Transgender (LGBT) community.
Date:
January 15, 1992
Creator:
Shaffer, Ron & Hawkins, Don
Object Type:
Newspaper
System:
The UNT Digital Library
The impact of thermal loading on repository performance at Yucca Mountain
In the unsaturated zone at Yucca Mountain, liquid flow along preferential fracture pathways is the only credible mechanism capable of bringing water to waste packages and transporting radionuclide to the water table. Three categories of features or mechanisms will mitigate the impact of flow along preferential fracture pathways: (1) discontinuity in fracture pathways, (2) liquid-phase dispersion in fracture networks, and (3) fracture-matrix interaction. For repository areal power densities (APDs) that are too low to result in significant boiling or rock dry-out effects, the primary mode of fracture-matrix interaction is matrix imbibition. For high APDs, boiling and enhanced matrix imbibition due to rock dry-out significantly add to the capacity of the unsaturated zone to retard fracture-dominated flow. With the use of V-TOUGH code, hydrothermal flow calculations are made for a range of APDs and spent fuel ages. For APD > 20 kW/acre, repository-heat-generated flow of vapor and liquid in fractures is found to dominate the ambient hydrological system. For high APDs, boiling conditions can persist for 10,000 yr or longer and rock-dry benefits for at least 100,000 yr.
Date:
January 15, 1992
Creator:
Buscheck, T. A. & Nitao, J. J.
Object Type:
Article
System:
The UNT Digital Library
[Letter from Debbie Hurst to John Thomas, January 15, 1992]
A letter dated January 15, 1992 from Debbie Hurst to John Thomas about a check enclosed and written to the AIDS Resource Center.
Date:
January 15, 1992
Creator:
Hurst, Debbie
Object Type:
Letter
System:
The UNT Digital Library