Partner
UNT Libraries Government Documents Department
1,199
Oklahoma Historical Society
557
Texas Historical Commission
72
UNT Libraries Special Collections
68
Sterling Municipal Library
26
Mexic-Arte Museum
19
UNT Libraries
13
Alvin Community College
12
Comanche Public Library
10
Nellie Pederson Civic Library
9
58 More
Collection
Office of Scientific & Technical Information Technical Reports
964
Jim Argo Collection
425
Texas Digital Newspaper Program
273
Tocker Foundation Grant
153
Government Accountability Office Reports
148
Oklahoma Digital Newspaper Program
145
THC National Register Collection
72
Texas State Publications
30
Congressional Research Service Reports
29
Sapulpa Herald
27
105 More
Degree Department
Country
Year
Month
Language
Results:
1 - 24 of
2,224
next
3-D Silicon Photonic Lattices- Cornerstone of an Emerging Photonics Revolution
Three-dimensional photonic lattices are engineered materials which are the photonic analogues of semiconductors. These structures were first proposed and demonstrated in the mid-to-late 1980's. However, due to fabrication difficulties, lattices active in the infrared are only just emerging. Wide ranges of structures and fabrication approaches have been investigated. The most promising approach for many potential applications is a diamond-like structure fabricated using silicon microprocessing techniques. This approach has enabled the fabrication of 3-D silicon photonic lattices active in the infrared. The structures display band gaps centered from 12{micro} down to 1.55{micro}.
Date:
July 8, 1999
Creator:
Fleming, J.G. & Lin, Shawn-Yu
Object Type:
Article
System:
The UNT Digital Library
5/10-MVA high temperature superconducting power transformer. Progress report for the period May 1998 - June 1999
None
Date:
July 28, 1999
Creator:
Intermagnetics General Corporation
Object Type:
Report
System:
The UNT Digital Library
241-Z-361 Sludge Characterization Sampling and Analysis Plan
This sampling and analysis plan (SAP) identifies the type, quantity, and quality of data needed to support characterization of the sludge that remains in Tank 241-2-361. The procedures described in this SAP are based on the results of the 241-2-361 Sludge Characterization Data Quality Objectives (DQO) (BWHC 1999) process for the tank. The primary objectives of this project are to evaluate the contents of Tank 241-2-361 in order to resolve safety and safeguards issues and to assess alternatives for sludge removal and disposal.
Date:
July 29, 1999
Creator:
BANNING, D.L.
Object Type:
Report
System:
The UNT Digital Library
11th International Conference of Radiation Research
Topics discussed in the conference included the following: Radiation Physics, Radiation Chemistry and modelling--Radiation physics and dosimetry; Electron transfer in biological media; Radiation chemistry; Biophysical and biochemical modelling; Mechanisms of DNA damage; Assays of DNA damage; Energy deposition in micro volumes; Photo-effects; Special techniques and technologies; Oxidative damage. Molecular and cellular effects-- Photobiology; Cell cycle effects; DNA damage: Strand breaks; DNA damage: Bases; DNA damage Non-targeted; DNA damage: other; Chromosome aberrations: clonal; Chromosomal aberrations: non-clonal; Interactions: Heat/Radiation/Drugs; Biochemical effects; Protein expression; Gene induction; Co-operative effects; ``Bystander'' effects; Oxidative stress effects; Recovery from radiation damage. DNA damage and repair -- DNA repair genes; DNA repair deficient diseases; DNA repair enzymology; Epigenetic effects on repair; and Ataxia and ATM.
Date:
July 18, 1999
Creator:
unknown
Object Type:
Article
System:
The UNT Digital Library
15th Street News (Midwest City, Okla.), Vol. 28, No. 30, Ed. 1 Thursday, July 1, 1999
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
July 1, 1999
Creator:
Pace, Joshua
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
15th Street News (Midwest City, Okla.), Vol. 28, No. 31, Ed. 1 Thursday, July 15, 1999
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
July 15, 1999
Creator:
Pace, Joshua
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
15th Street News (Midwest City, Okla.), Vol. 28, No. 32, Ed. 1 Wednesday, July 21, 1999
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
July 21, 1999
Creator:
Pace, Joshua
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
15th Street News (Midwest City, Okla.), Vol. 28, No. 33, Ed. 1 Thursday, July 29, 1999
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
July 29, 1999
Creator:
Pace, Joshua
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
1996 Gordon Research Conference on Archaea - Ecology, Metabolism, and Molecular Biology, to be held July 14-19, 1996. Final progress report
None
Date:
July 7, 1999
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
1998 Statewide Audit - A Summary for the Texas Legislature
Report of the Texas State Auditor's Office related to specific information on the performance of Texas state entities in implementing key federal programs, particularly regarding the financial statements of the State, the fulfillment of audit requirements in compliance with the federal Single Audit Act of 1996, and the compliance with significant bond covenants.
Date:
July 1999
Creator:
Texas. Office of the State Auditor.
Object Type:
Report
System:
The Portal to Texas History
[1999 Extra Mile Award recipients]
Photograph of (L-R) Carol Montgomery, Jo Bess Jackson, Rebecca Covell, Sue Wyll, and Steve Atkinson standing and sitting in a field with the Dallas skyline behind them. The photo was taken in the style of promotional materials for the show "Friends".
Date:
July 1999
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[1999 Extra Mile Awards committee photo set]
Photographs of a group of women sitting and standing in the fields in front of the Dallas skyline. They are standing, leaning, and sitting on tables or chairs in the open field. Among them are De'An Olson, Dee Pennington, Kathy Jack, Clarissa Carter, Pat Stone, and Lory Masters. The photo was taken and posed in the style of promotional materials for the show "Friends".
Date:
July 1999
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[1999 Extra Mile committee group photo 1]
Photograph of ten formally dressed women sitting, standing, and leaning on chairs and tables which are set in a field looking out onto the Dallas skyline. Among them are De'An Olson, Dee Pennington, Kathy Jack, Clarissa Carter, Pat Stone, and Lory Masters. The photo was styled after promotional materials from the show "Friends".
Date:
July 1999
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[1999 Extra Mile committee group photo 2]
Photograph of ten formally dressed women sitting, standing, and leaning on chairs and tables which are set in a field looking out onto the Dallas skyline. Among them are De'An Olson, Dee Pennington, Kathy Jack, Clarissa Carter, Pat Stone, and Lory Masters. The photo was styled after promotional materials from the show "Friends".
Date:
July 1999
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
[1999 Extra Mile committee group photo 3]
Photograph of ten formally dressed women sitting, standing, and leaning on chairs and tables which are set in a field looking out onto the Dallas skyline. Among them are De'An Olson, Dee Pennington, Kathy Jack, Clarissa Carter, Pat Stone, and Lory Masters. The photo was styled after promotional materials from the show "Friends".
Date:
July 1999
Creator:
unknown
Object Type:
Photograph
System:
The UNT Digital Library
1999 Gordon Research Conference on Microbial Population Biology. Final Progress Report
None
Date:
July 23, 1999
Creator:
unknown
Object Type:
Article
System:
The UNT Digital Library
2401-W Waste storage building closure plan
This plan describes the performance standards met and closure activities conducted to achieve clean closure of the 2401-W Waste Storage Building (2401-W) (Figure I). In August 1998, after the last waste container was removed from 2401-W, the U.S. Department of Energy, Richland Operations Office (DOE-RL) notified Washington State Department of Ecology (Ecology) in writing that the 2401-W would no longer receive waste and would be closed as a Resource Conservation and Recovery Act (RCRA) of 1976 treatment, storage, and/or disposal (TSD) unit (98-EAP-475). Pursuant to this notification, closure activities were conducted, as described in this plan, in accordance with Washington Administrative Code (WAC) 173-303-610 and completed on February 9, 1999. Ecology witnessed the closure activities. Consistent with clean closure, no postclosure activities will be necessary. Because 2401-W is a portion of the Central Waste Complex (CWC), these closure activities become the basis for removing this building from the CWC TSD unit boundary. The 2401-W is a pre-engineered steel building with a sealed concrete floor and a 15.2-centimeter concrete curb around the perimeter of the floor. This building operated from April 1988 until August 1998 storing non-liquid containerized mixed waste. All waste storage occurred indoors. No potential existed for 2401-W operations …
Date:
July 15, 1999
Creator:
Luke, S. M.
Object Type:
Report
System:
The UNT Digital Library
29th Annual PolyMAC Meeting: Book of Abstracts
A sixteen-run, Resolution IV, fractional factorial screening design has been used to evaluate the relative significance of seven independent material and process variables for an electrically deposited commercial acrylic paint. A Resolution IV design was chosen so that variable interactions could be detected without any interference from the effects of the variables themselves. Because resource limitations did not permit use of a Resolution V design, the two-way interactions were confounded with one another in groups of three, which unfortunately made interpretation of the results more complicated. Each design point was replicated once and a pair of centerpoints were run at the beginning, in the middle and at the end of the design points. A total of 38 test panels were prepared. Independent variables used in this experiment were total charge, current density, mixer speed, silica content, crossover point, temperature and solids fraction. The magnitude of each independent variable's effect on the dependent response variables was estimated by fitting a first-order model with two-way interaction terms. Three-way interactions were assumed to be insignificant. Interaction confounding was eliminated by using the significance of the independent variables to determine which of the three possible interactions was significant. Data analysis was performed using the …
Date:
July 23, 1999
Creator:
Balazs, B.
Object Type:
Report
System:
The UNT Digital Library
3D finite-difference frequency-domain code for electromagnetic induction tomography
The effect of shrapnel on target chamber components and experiments at large lasers such as the National Ignition Facility at LLNL and the Megajoule Laser at CESTA in France is an important issue in fielding targets and exposure samples. Modeling calculations are likely to be an important component of this effort. Some work in this area has been performed by French workers, who are collaborating with the LLNL on many issues relating to target chamber, experiment-component, and diagnostics survival. Experiments have been performed at the PhCbus laser in France to measure shrapnel produced by laser-driven targets; among these shots were experiments that accelerated spheres of a size characteristic of some of the more damaging shrapnel. These spheres were stopped in polyethylene witness plates. The penetration depth is characteristic of the velocity of the shrapnel. Experimental calibration of steel sphere penetration into polyethylene was performed at the CESTA facility. The penetration depth has been reported (ref. 1) and comparisons with modeling calculations have been made (ref. 2). There was interest in a comparison study of the modeling of these experiments to provide independent checks of the calculations. This work has been approved both by DOE headquarters and by the French Atomic …
Date:
July 28, 1999
Creator:
Berryman, J. G.; Champagne, N. J., II & Buettner, H. M.
Object Type:
Article
System:
The UNT Digital Library
Absorbance and Photoluminescence of Si, Ge, and MoS2 Nanoparticles Studied by Liquid Chromatography
The authors have successfully synthesized highly crystalline, size-selected indirect band-gap nanocrystals (NC) of Si, Ge and MoS{sub 2} in the size range 2-10 nm in inverse micelles and studied their optical absorption and photoluminescence (PL) properties using liquid chromatography. Room temperature, visible PL from these nanocrystals was demonstrated in the range 700-350 nm (1.8-3.5 eV). their experimental results are interpreted in terms of the corresponding electronic structure of the bulk materials and it is demonstrated that these nanocrystals retain bulk-like electronic character to sizes as small as 2 nm, but the absorbance energies are strongly blue-shifted by quantum confinement. The experimental results on Si-NCs are also compared to earlier work on Si clusters grown by other techniques and to the predictions of various model calculations. Currently, the wide variations in the theoretical predictions of the various models along with considerable uncertainties in experimental size determination for clusters less than 3-4 nm, make it difficult to select the best model.
Date:
July 12, 1999
Creator:
Provencio, P. P.; Samara, G. A. & Wilcoxon, J. P.
Object Type:
Article
System:
The UNT Digital Library
Accelerated Life Testing and Service Lifetime Prediction for PV Technologies in the Twenty-First Century
The purposes of this paper are to (1) discuss the necessity for conducting accelerated life testing (ALT) in the early stages of developing new photovoltaic (PV) technologies, (2) elucidate the crucial importance for combining ALT with real-time testing (RTT) in terrestrial environments for promising PV technologies for the 21st century, and (3) outline the essential steps for making a service lifetime prediction (SLP) for any PV technology. The specific objectives are to (a) illustrate the essential need for ALT of complete, encapsulated multilayer PV devices, (b) indicate the typical causes of degradation in PV stacks, (c) elucidate the complexity associated with quantifying the durability of the devices, (d) explain the major elements that constitute a generic SLP methodology, (e) show how the introduction of the SLP methodology in the early stages of new device development can reduce the cost of technology development, and (f) outline the procedure for combining the results of ALT and RTT, establishing degradation mechanisms, using sufficient numbers of samples, and applying the SLP methodology to produce a SLP for existing or new PV technologies.
Date:
July 13, 1999
Creator:
Czanderna, A. W. & Jorgensen, G. J.
Object Type:
Article
System:
The UNT Digital Library
Acceptance/status of construction at suspension of the Hanford cone penetrometer multi-sensor and multi-sample soil sampler probe systems
This document describes the condition of the multi-sensor cone penetrometer probe system at project termination.
Date:
July 16, 1999
Creator:
Troyer, G. L.
Object Type:
Report
System:
The UNT Digital Library
Acceptance test report for the AN valve pit leak detection and low point drain assembly mock up test procedure
This document describes The Performance Mock-up Test Procedure for the Valve Pit Leak Detection and Low Point Drain Assembly Performance Mock-Up Test Procedure.
Date:
July 20, 1999
Creator:
Ewer, K. L.
Object Type:
Report
System:
The UNT Digital Library
Actinide Biocolloid Formation in Brine by Halophilic Bacteria
We examined the ability of a halophilic bacterium (WFP 1A) isolated from the Waste Isolation Pilot Plant (WIPP) site to accumulate uranium in order to determine the potential for biocolloid facilitated actinide transport. The bacterial cell Surface functional groups involved in the complexation of the actinide were determined by titration. Uranium, added as uranyl nitrate, was removed from solution at pH 5 by cells but at pH 7 and 9 very little uranium was removed due to its limited volubility. Although present as soluble species, uranyl citrate at pH 5, 7, and 9, and uranyl carbonate at pH 9 were not removed by the bacterium because they were not bioavailable due to their neutral or negative charge. Addition of uranyl EDTA to brine at pH 5, 7, and 9 resulted in the immediate precipitation of U. Transmission electron microscopy (TEM) and energy dispersive X-ray spectroscopy (EDS) analysis revealed that uranium was not only associated with the cell surface but also accumulated intracellulary as uranium-enriched granules. Extended X-ray absorption fine structure (EXAFS) analysis, of the bacterial cells indicated the bulk sample contained more than one uranium phase. Nevertheless these results show the potential for the formation of actinide bearing bacterial biocolloids …
Date:
July 28, 1999
Creator:
Gillow, J. B.; Francis, A. J.; Dodge, C. J.; Harris, R.; Beveridge, T. J.; Brady, P. V. et al.
Object Type:
Article
System:
The UNT Digital Library