Partner
UNT Libraries Government Documents Department
774
UNT Libraries Special Collections
327
Oklahoma Historical Society
136
Hopkins County Genealogical Society
29
UNT Libraries
28
Sterling Municipal Library
27
Calhoun County Public Library
21
Red River County Public Library
11
UT San Antonio Libraries Special Collections
11
Rice University Woodson Research Center
10
81 More
Collection
Office of Scientific & Technical Information Technical Reports
713
Texas Digital Newspaper Program
410
KXAS-NBC 5 News Collection
218
Tocker Foundation Grant
190
Oklahoma Digital Newspaper Program
141
LGBT Collections
39
Chickasha Newspaper Collection
30
Hopkins County Area Newspapers
29
Texas State Publications
27
Altus Times-Democrat
26
142 More
Degree Department
Country
Year
Month
Language
1,684 Matching Results
Results open in a new window/tab.
Results:
1 - 24 of
1,684
next
[AIDS ARMS Network meeting agenda and handwritten notes]
An agenda outline for an AIDS ARMS Network, Inc. meeting on September 13, 1991, with some hand-written notes
Date:
September 13, 1991
Creator:
AIDS ARMS Network, Inc.
Object Type:
Text
System:
The UNT Digital Library
AIDS Update, Volume 6, Number 9, September 1991
Monthly newsletter describing news and events related to the AIDS Resource Center in Dallas, Texas as well as articles, letters, advice columns, and advertisements of interest to subscribers.
Date:
September 1991
Creator:
AIDS Resource Center (Dallas, Tex.)
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
Guest Artist Recital: 1991-09-06 – Godwin Agbeli, master drummer and dancer
A guest artist recital performed at the UNT College of Music Recital Hall.
Date:
September 6, 1991
Creator:
Agbeli, Godwin
Object Type:
Sound
System:
The UNT Digital Library
Analysis of energy use in building services of the industrial sector in California: Two case studies
Energy-use patterns in many of California's fastest-growing industries are not typical of the existing mix of industries in the US. Many California firms operate small- and medium-sized facilities housed in buildings used simultaneously or interchangeably over time for commercial (office, retail, warehouse) and industrial activities. In these industrial subsectors, the energy required for building services (providing occupant comfort and necessities like lighting, HVAC, office equipment, computers, etc.) may be at least as important as the more familiar process energy requirements -- especially for electricity and on-peak demand. Electricity for building services is sometimes priced as if it were base loaded like process uses; in reality this load varies significantly according to occupancy schedules and cooling and heating loads, much as in any commercial building. Using informal field surveys, simulation studies, and detailed analyses of existing data (including utility commercial/industrial audit files), we studied the energy use of this industrial subsector through a multi-step procedure: (1) characterizing non-process building energy and power use in California industries, (2) identifying conservation and load-shaping opportunities in industrial building services, and (3) investigating industrial buildings and system design methodologies. In an earlier report, we addressed these issues by performing an extensive survey of the existing …
Date:
September 1, 1991
Creator:
Akbari, H. & Sezgen, O.
Object Type:
Report
System:
The UNT Digital Library
Analysis of energy use in building services of the industrial sector in California: Two case studies. Final report
Energy-use patterns in many of California`s fastest-growing industries are not typical of the existing mix of industries in the US. Many California firms operate small- and medium-sized facilities housed in buildings used simultaneously or interchangeably over time for commercial (office, retail, warehouse) and industrial activities. In these industrial subsectors, the energy required for building services (providing occupant comfort and necessities like lighting, HVAC, office equipment, computers, etc.) may be at least as important as the more familiar process energy requirements -- especially for electricity and on-peak demand. Electricity for building services is sometimes priced as if it were base loaded like process uses; in reality this load varies significantly according to occupancy schedules and cooling and heating loads, much as in any commercial building. Using informal field surveys, simulation studies, and detailed analyses of existing data (including utility commercial/industrial audit files), we studied the energy use of this industrial subsector through a multi-step procedure: (1) characterizing non-process building energy and power use in California industries, (2) identifying conservation and load-shaping opportunities in industrial building services, and (3) investigating industrial buildings and system design methodologies. In an earlier report, we addressed these issues by performing an extensive survey of the existing …
Date:
September 1, 1991
Creator:
Akbari, H. & Sezgen, O.
Object Type:
Report
System:
The UNT Digital Library
The effect of ion irradiation on inert gas bubble mobility
The effect of Al ion irradiation on the mobility of Xe gas bubbles in Al thin films was investigated. Transmission electron microscopy was used to determine bubble diffusivities in films irradiated and/or annealed at 673K, 723K and 773K. Irradiation increased bubble diffusivity by a factor of 2--9 over that due to thermal annealing alone. The Arrhenius behavior and dose rate dependence of bubble diffusivity are consistent with a radiation enhanced diffusion phenomenon affecting a volume diffusion mechanism of bubble transport. 9 refs., 3 figs., 2 tabs.
Date:
September 1, 1991
Creator:
Alexander, D. E. & Birtcher, R. C.
Object Type:
Article
System:
The UNT Digital Library
Tank 241-A-105 evaporation estimate, 1970 through 1978
Tank 241-A-105 was subjected to a severe steam explosion in January 1965 that caused the metal liner on the bottom to bulge upward approximately 8 feet above its concrete foundation. Shortly after this event, radiation was detected in drywells around the tank and it was declared a leaker. Sluicing operations to remove material from the tank began in August 1968 and continued through August 1970. After sluicing was completed, a significant amount of heat generating material still remained in the tank. To keep tank temperatures below operating limits, the water level in the tank was maintained at an approximate depth of 1.5 feet. This practice was continued until January 1979 when it was believed that the contents had decayed sufficiently to discontinue the water addition and put the tank on a portable exhauster system. Recent concern has focused on what portion of this cooling water added to Tank 241-A-105 actually evaporated and how much leaked into the soil during the nine year time period. This report presents the results of a study that estimates the amount of water evaporated from Tank 241-A-105 between 1970 and 1979. The problem was completed in two parts. The first part involved development of a …
Date:
September 1, 1991
Creator:
Allen, G.K.
Object Type:
Report
System:
The UNT Digital Library
Southwest Retort, Volume 45, Number 1, September 1991
This publication of the Dallas-Fort Worth Section of the American Chemical Society includes information about research, prominent scientist, organizational business, and various other stories of interest to the community.
Date:
September 1991
Creator:
American Chemical Society. Dallas/Fort Worth Section.
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
Feasibility study for the processing of Hanford Site cesium and strontium isotopic sources in the Hanford Waste Vitrification Plant
The final environmental impact statement for the disposal of defense-related wastes at the Hanford Site (Final Environmental Impact Statement: Disposal of Hanford Defense High-Level, Transuranic and Tank Wastes [HDW-EIS] [DOE 1987]) states that the preferred alternative for disposal of cesium and strontium wastes at the Hanford Site will be to package and ship these wastes to the commercial high-level waste repository. The Record of Decision for this EIS states that before shipment to a geologic repository, these wastes will be packaged in accordance with repository waste acceptance criteria. However, the high cost per canister for repository disposal and uncertainty about the acceptability of overpacked capsules by the repository suggest that additional alternative means of disposal be considered. Vitrification of the cesium and strontium salts in the Hanford Waste Vitrification Plant (HWVP) has been identified as a possible alternative to overpacking. Subsequently, Westinghouse Hanford Company`s (Westinghouse Hanford) Projects Technical Support Office undertook a feasibility study to determine if any significant technical issues preclude the vitrification of the cesium and strontium salts. Based on the information presented in this report, it is considered technically feasible to blend the cesium chloride and strontium fluoride salts with neutralized current acid waste (NCAW) and/or complexant …
Date:
September 1, 1991
Creator:
Anantatmula, R. P.; Watrous, R. A.; Nelson, J. L.; Perez, J. M.; Peters, R. D. & Peterson, M. E.
Object Type:
Report
System:
The UNT Digital Library
Technical memo on new results on CsI photocathodes: Enhancement and aging
It appears that there are 4 processes involved in the enhancement and aging of a CsI or CsI-TMAE photocathode: water absorption, charging up of the photocathode, a self annealing aging, and a permanent aging. The evidence for these processes are presented. 9 refs., 6 figs.
Date:
September 1, 1991
Creator:
Anderson, D.F.; Kwan, S. (Fermi National Accelerator Lab., Batavia, IL (United States)); Hoeneisen, B. (Universidad San Francisco de Quito (Ecuador)) & Peskov, V. (European Organization for Nuclear Research, Geneva (Switzerland). World Lab.)
Object Type:
Report
System:
The UNT Digital Library
Electroweak phase transitions
An analytic treatment of the one Higgs doublet, electroweak phase transition is given. The phase transition is first order, occurs by the nucleation of thin walled bubbles and completes at a temperature where the order parameter, {l_angle}{phi}{r_angle}{sub T} is significantly smaller than it is when the origin becomes absolutely unstable. The rate of anomalous baryon number violation is an exponentially function of {l_angle}{phi}{r_angle}{sub T}. In very minimal extensions of the standard model it is quite easy to increase {l_angle}{phi}{r_angle}{sub T} so that anomalous baryon number violation is suppressed after completion of the phase transition. Hence baryogenesis at the electroweak phase transition is tenable in minimal of the standard model. In some cases additional phase transitions are possible. For a light Higgs boson, when the top quark mass is sufficiently large, the state where the Higgs field has a vacuum expectation value {l_angle}{phi}{r_angle} = 246 GeV is not the true minimum of the Higgs potential. When this is the case, and when the top quark mass exceeds some critical value, thermal fluctuations in the early universe would have rendered the state {l_angle}{phi}{r_angle} = 246 GeV unstable. The requirement that the state {l_angle}{phi}{r_angle} = 246 GeV is sufficiently long lived constrains the …
Date:
September 16, 1991
Creator:
Anderson, G. W.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Electroweak phase transitions
An analytic treatment of the one Higgs doublet, electroweak phase transition is given. The phase transition is first order, occurs by the nucleation of thin walled bubbles and completes at a temperature where the order parameter, {l angle}{phi}{r angle}{sub T} is significantly smaller than it is when the origin becomes absolutely unstable. The rate of anomalous baryon number violation is an exponentially function of {l angle}{phi}{r angle}{sub T}. In very minimal extensions of the standard model it is quite easy to increase {l angle}{phi}{r angle}{sub T} so that anomalous baryon number violation is suppressed after completion of the phase transition. Hence baryogenesis at the electroweak phase transition is tenable in minimal of the standard model. In some cases additional phase transitions are possible. For a light Higgs boson, when the top quark mass is sufficiently large, the state where the Higgs field has a vacuum expectation value {l angle}{phi}{r angle} = 246 GeV is not the true minimum of the Higgs potential. When this is the case, and when the top quark mass exceeds some critical value, thermal fluctuations in the early universe would have rendered the state {l angle}{phi}{r angle} = 246 GeV unstable. The requirement that the state …
Date:
September 16, 1991
Creator:
Anderson, G.W.
Object Type:
Report
System:
The UNT Digital Library
The Eastern Statesman (Wilburton, Okla.), Vol. 67, No. 3, Ed. 1 Thursday, September 12, 1991
Biweekly student newspaper from Eastern Oklahoma State College in Wilburton, Oklahoma that includes local, state, and campus news along with advertising.
Date:
September 12, 1991
Creator:
Anderson, Rob & Heath, Melissa
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Eastern Statesman (Wilburton, Okla.), Vol. 67, No. 4, Ed. 1 Thursday, September 26, 1991
Biweekly student newspaper from Eastern Oklahoma State College in Wilburton, Oklahoma that includes local, state, and campus news along with advertising.
Date:
September 26, 1991
Creator:
Anderson, Rob & Heath, Melissa
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Working Group 7.1 on environmental transport, US-USSR Joint Coordinating Committee on Civilian Nuclear Reactor Safety. Progress report update
This report contains brief summaries of the status of projects of the Environmental Transport Group of the US-USSR Joint Coordinating Committee of Civilian Nuclear Reactor Safety. Projects reported on include: Management and Administration; Atmospheric Transport; Resuspension; External Dose; Terrestrial Food Chains; Aquatic Food Chains; Hydrological Transport; and Intercalibration
Date:
September 7, 1991
Creator:
Anspaugh, L. R. & Hendrickson, S. M.
Object Type:
Report
System:
The UNT Digital Library
Human Chromosome 21: Mapping of the chromosomes and cloning of cDNAs
The objective of the research funded by DOE grant DE-FG02-89ER60857 from 6/15/89 to 8/31/91 was to contribute to the physical mapping of human chromosome 21 (HC21) by cloning large fragments of DNA into Yeast Artificial Chromosomes (YACs) and identify YACs that map on HC21. A total of 54 sequence tagged sites (STS) have been developed and mapped in our laboratory to HC21 and can be used as initial reference points for YAC identification and construction of overlapping clones. A small YAC library was constructed which is HC21 specific. DNA from somatic cell hybrid WAV17 or from flow-sorted HC21 was partially digested with EcoRI, ligated into vectors PJS97, PJS98, and YACs have been obtained with average size insert of more than 300 kb. This library has been deposited in D. Patterson's lab for the Joint YAC screening effort. Additional YAC libraries from ICI Pharmaceuticals or from Los Alamos National Laboratories have been screened with several STS and positive YACs have been identified. Work in progress includes screening of YAC libraries in order to construct overlapping clones, characterization of the cloning ends of YACs, characterization of additional STS and cloning of HC21 specific cDNAs. 15 refs., 2 figs., 5 tabs.
Date:
September 1, 1991
Creator:
Antonarakis, S.E.
Object Type:
Report
System:
The UNT Digital Library
Testing of advanced ceramic fabric heat pipe for a Stirling engine
The development and application of Stirling engines for space power production requires concomitant development of an advanced heat rejection system. We are currently involved in the design, development, and testing of advanced ceramic fabric (ACF) water heat pipes for optimal heat rejection from the Stirling cycle without the use of hazardous working fluids such as mercury. Our testing to-date has been with a 200-{mu}m thick titanium heat pipe utilizing Nextel {trademark} fabric as both the outer structural component and as a wick. This heat pipe has been successfully started up from a frozen condition against a negative 4 degree tilt (i.e., fluid return to evaporator was against gravity), with 75 W heat input, in ambient air. In a horizontal orientation, up to 100 W heat input was tolerated without experiencing dryout. 7 refs., 5 figs., 2 tabs.
Date:
September 1, 1991
Creator:
Antoniak, Z.I.; Webb, B.J. & Bates, J.M.
Object Type:
Article
System:
The UNT Digital Library
Medical screening reference manual for security force personnel at fuel cycle facilities possessing formula quantities of special nuclear materials
The recommendations contained throughout this NUREG were provided to the Nuclear Regulatory Commission (NRC) as medical screening information that could be used by physicians who are evaluating the parameters of the safe participation of guards, Tactical Response Team members (TRTs), and all other armed response personnel in physical fitness training and in physical performance standards testing. The information provided in this NUREG will help licensees to determine if guards, TRTs, and other armed response personnel can effectively perform their normal and emergency duties without undue hazard to themselves, to fellow employees, to the plant site, and to the general public. The medical recommendations in this NUREG are similar in content to the medical standards contained in 10 CFR Part 1046 which, in part, specifies medical standards for the protective force personnel regulated by the Department of Energy. The guidelines contained in this NUREG are not requirements, and compliance is not required. 3 refs.
Date:
September 1, 1991
Creator:
Arzino, P. A. & Brown, C. H.
Object Type:
Report
System:
The UNT Digital Library
Physical fitness training reference manual for security force personnel at fuel cycle facilities possessing formula quantities of special nuclear materials
The recommendations contained throughout this NUREG are being provided to the Nuclear Regulatory Commission (NRC) as a reference manual which can be used by licensee management as they develop a program plan for the safe participation of guards, Tactical Response Team members (TRTs), and all other armed response personnel in physical fitness training and in physical performance standards testing. The information provided in this NUREG will help licensees to determine if guards, TRTs, and other armed response personnel can effectively perform their normal and emergency duties without undue hazard to themselves, to fellow employees, to the plant site, and to the general public. The recommendations in this NUREG are similar in part to those contained within the Department of Energy (DOE) Medical and Fitness Implementation Guide which was published in March 1991. The guidelines contained in this NUREG are not requirements, and compliance is not required. 25 refs.
Date:
September 1, 1991
Creator:
Arzino, P. A.; Caplan, C. S. & Goold, R. E. (California State Univ., Hayward, CA (United States). Foundation)
Object Type:
Report
System:
The UNT Digital Library
Production of the. rho. sub 1 (1300) in the reaction K sup minus P yields. pi. sup +. pi. sup minus. Lambda. at 11 GeV/c
Results are presented from an analysis of the forward {pi}{sup +}{pi}{sup {minus}} system produced in the reaction K{sup {minus}} p {yields} {pi}{sup +}{pi}{sup {minus}} {Lambda} at 11 GeV/c observed with the LASS spectrometer at SLAC. An amplitude analysis analysis reveals that the bump in the mass distribution in the vicinity of the f{sub 2}(1270) actually contains a significant P-wave component. The mass dependence of the corresponding amplitude and phase is well described by a resonant Breit-Wigner line-shape with mass (1302{sub {minus}25}{sup +28}) MeV/c{sup 2}, width (140{sub {minus}40}{sup +49}) MeV/c{sup 2}, and estimated elasticity {approximately} 5%. 10 refs., 6 figs.
Date:
September 1, 1991
Creator:
Aston, D.; Bienz, T.; Bird, F.; Dunwoodie, W.; Johnson, W.; Kunz, P. et al.
Object Type:
Article
System:
The UNT Digital Library
Recommended methods for statistical analysis of data containing less-than-detectable measurements
This report is a manual for statistical workers dealing with environmental measurements, when some of the measurements are not given exactly but are only reported as less than detectable. For some statistical settings with such data, many methods have been proposed in the literature, while for others few or none have been proposed. This report gives a recommended method in each of the settings considered. The body of the report gives a brief description of each recommended method. Appendix A gives example programs using the statistical package SAS, for those methods that involve nonstandard methods. Appendix B presents the methods that were compared and the reasons for selecting each recommended method, and explains any fine points that might be of interest. 7 refs., 4 figs.
Date:
September 1, 1991
Creator:
Atwood, C. L.; Blackwood, L. G.; Harris, G. A. & Loehr, C. A.
Object Type:
Report
System:
The UNT Digital Library
Experimental investigations in particle physics at intermediate energies. Performance report for December 1, 1990--November 30, 1991
The major elements of this project continues to be on fundamental symmetries and parameters of the Standard Model. The projects in the current period have been BNL E791 (a search for the decay K{sub L}{sup 0} {yields} {mu}e, which would violate the rule of separate lepton number conservation), test of an upgrade proposal (E871), and LSND, a neutrino experiment at LAMPF. For E791, data taking was completed in June 1990, and preliminary results are now available for the decays K{sub L}{sup 0} {yields} {mu}e and K{sub L}{sup 0} {yields} {mu}{mu}from the entire data set. The data for decay K{sub L}{sup 0} {yields} ee are still being analysed. These are an upper limit for the branching fraction for K{sub L}{sup 0} {yields} {mu}e of 3.5 {times} 10{sup {minus}11} (90% C.L.). From the 1990 data alone, we have a new (preliminary) value of the branching fraction for K{sub L}{sup 0} {yields} {mu}{mu} of (6.96{plus_minus}0. 4{plus_minus}0.22) {times} 10{sup {minus}9}, with a sample of 349 events. Combining this with earlier data gives (6.96{plus_minus}0.34) {times} 10{sup 9}, by far the most precise value. The limit on the decay K{sub L}{sup 0} {yields} {mu}e places a lower limit on the mass of a new particle mediating …
Date:
September 30, 1991
Creator:
Auerbach, L. B.; Highland, V. L.; Martoff, C. J.; McFarlane, K. W.; Guss, C. & Kettell, S.
Object Type:
Report
System:
The UNT Digital Library
Experimental Investigations in Particle Physics at Intermediate Energies Preformance Report: December 1990-November 1991
The major elements of this project continues to be on fundamental symmetries and parameters of the Standard Model. The projects in the current period have been BNL E791 (a search for the decay K{sub L}{sup 0} {yields} {mu}e, which would violate the rule of separate lepton number conservation), test of an upgrade proposal (E871), and LSND, a neutrino experiment at LAMPF. For E791, data taking was completed in June 1990, and preliminary results are now available for the decays K{sub L}{sup 0} {yields} {mu}e and K{sub L}{sup 0} {yields} {mu}{mu}from the entire data set. The data for decay K{sub L}{sup 0} {yields} ee are still being analysed. These are an upper limit for the branching fraction for K{sub L}{sup 0} {yields} {mu}e of 3.5 {times} 10{sup {minus}11} (90% C.L.). From the 1990 data alone, we have a new (preliminary) value of the branching fraction for K{sub L}{sup 0} {yields} {mu}{mu} of (6.96{plus minus}0. 4{plus minus}0.22) {times} 10{sup {minus}9}, with a sample of 349 events. Combining this with earlier data gives (6.96{plus minus}0.34) {times} 10{sup 9}, by far the most precise value. The limit on the decay K{sub L}{sup 0} {yields} {mu}e places a lower limit on the mass of a …
Date:
September 30, 1991
Creator:
Auerbach, L. B.; Highland, V. L.; Martoff, C. J.; McFarlane, K. W.; Guss, C. & Kettell, S.
Object Type:
Report
System:
The UNT Digital Library
A variable timestep generalized Runge-Kutta method for the numerical integration of the space-time diffusion equations
A generalized Runge-Kutta method has been employed in the numerical integration of the stiff space-time diffusion equations. The method is fourth-order accurate, using an embedded third-order solution to arrive at an estimate of the truncation error for automatic timestep control. The efficiency of the Runge-Kutta method is enhanced by a block-factorization technique that exploits the sparse structure of the matrix system resulting from the space and energy discretized form of the time-dependent neutron diffusion equations. Preliminary numerical evaluation using a one-dimensional finite difference code shows the sparse matrix implementation of the generalized Runge-Kutta method to be highly accurate and efficient when compared to an optimized iterative theta method. 12 refs., 5 figs., 4 tabs.
Date:
September 1, 1991
Creator:
Aviles, B.N.; Sutton, T.M. & Kelly, D.J. III.
Object Type:
Article
System:
The UNT Digital Library