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Oklahoma Historical Society
349
UNT Libraries Government Documents Department
307
UNT Libraries Special Collections
213
UNT Libraries
25
National Museum of the Pacific War/Admiral Nimitz Foundation
12
Sterling Municipal Library
12
San Antonio Public Library
7
Carl Albert Congressional Research and Studies Center
3
Gaines County Library
3
Patrick Heath Public Library
3
41 More
Collection
Jim Argo Collection
310
The Black Academy of Arts and Letters Records
167
Office of Scientific & Technical Information Technical Reports
138
Texas Digital Newspaper Program
99
Congressional Research Service Reports
95
Defense Base Closure and Realignment Commission
50
Oklahoma Digital Newspaper Program
44
Tocker Foundation Grant
37
The Greensheet
23
Government Accountability Office Reports
20
77 More
Degree Department
Country
States
Year
Month
Day
Language
China and Proliferation of Weapons of Mass Destruction and Missiles: Policy Issues
This report discusses the national security problem of China's role in weapons proliferation and issues related to the U.S. policy response, including legislation, since the mid-1990's.
Date:
December 11, 2006
Creator:
Kan, Shirley A.
Object Type:
Report
System:
The UNT Digital Library
IFE Final Optics and Chamber Dynamics Modeling and Experiments Final Technical Report
Our OFES-sponsored research on IFE technology originally focused on studies of grazing-incidence metal mirrors (GIMM's). After the addition of GIMM research to the High Average Power Laser (HAPL) program, our OFES-sponsored research evolved to include laser propagation studies, surface material evolution in IFE wetted-wall chambers, and magnetic intervention. In 2003, the OFES IFE Technology program was terminated. We continued to expend resources on a no-cost extension in order to complete student research projects in an orderly way and to help us explore new research directions. Those explorations led to funding in the field of extreme ultraviolet lithography, which shares many issues in common with inertial fusion chambers, and the field of radiative properties of laser-produced plasma.
Date:
January 11, 2006
Creator:
Najmabadi, F. & Tillack, M. S.
Object Type:
Report
System:
The UNT Digital Library
High-Performance Corrosion-Resistant Iron-Based Amorphous Metals: The Effects of Composition, Structure and Environment on Corrosion Resistance
New corrosion-resistant, iron-based amorphous metals have been identified from published data or developed through combinatorial synthesis, and tested to determine their relative thermal phase stability, microstructure, mechanical properties, damage tolerance, and corrosion resistance. Some alloy additions are known to promote glass formation and to lower the critical cooling rate [F. Guo, S. J. Poon, Applied Physics Letters, 83 (13) 2575-2577, 2003]. Other elements are known to enhance the corrosion resistance of conventional stainless steels and nickel-based alloys [A. I. Asphahani, Materials Performance, Vol. 19, No. 12, pp. 33-43, 1980] and have been found to provide similar benefits to iron-based amorphous metals. Many of these materials can be cast as relatively thick ingots, or applied as coatings with advanced thermal spray technology. A wide variety of thermal spray processes have been developed by industry, and can be used to apply these new materials as coatings. Any of these can be used for the deposition of the formulations discussed here, with varying degrees of residual porosity and crystalline structure. Thick protective coatings have now been made that are fully dense and completely amorphous in the as-sprayed condition. An overview of the High-Performance Corrosion Resistant Materials (HPCRM) Project will be given, with particular …
Date:
April 11, 2006
Creator:
Farmer, J; Choi, J S; Haslam, J; Lian, T; Day, S; Yang, N et al.
Object Type:
Article
System:
The UNT Digital Library
[E-mail to Al Daniels from Texas Ethics Commission]
An e-mail from the Texas Ethics Commission to Al Daniels acknowledging receipt of filing for Texas Stonewall Democratic Caucus. There is an electronic filing version of General-Purpose Committee Campaign Finance Report submitted to the Texas Ethics Commission. A report of Texas Stonewall Democratic Caucus, Sales by Item Detail made on January through June 2006. The report lists type of services, contribution, dues, and sales, with an account balance ending of $10,884.00. A report of Texas Stonewall Democratic Caucus, Expenses by Vendor Detail made on January through June 2006, with an account ending of $9,554.95. Also, a General Ledger for the Texas Stonewall Democratic Caucus about payment and invoice history as of June 2006.
Date:
July 11, 2006
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
[Letter from Ken Whalen to TDNA Board Members, October 11, 2006]
Letter from Ken Whalen to the TDNA Board Members on October 11, 2006 with the subject Nominations for 2007 Treasurer. Whalen writes that it is time once again for the nomination process for the TDNA officers and directors, that President Halbreich is in the process of appointing a nomination committee to elect candidates for board openings. Included in the letter is a ballet form that needs to be filled out and submitted by Tuesday, October 17, 2006.
Date:
October 11, 2006
Creator:
Whalen, Ken
Object Type:
Letter
System:
The UNT Digital Library
[Newspaper Interns Honored by Texas Daily Newspaper Association]
Texas Daily Newspaper Association's newspaper interns honored by the organization. Editorial interns who worked at the Houston Chronicle and The Dallas Morning News are winners of the 2006 H.M. Fentress Award. Natalie Torentinos, a Houston Chronicle summer intern, will receive $250 and a plaque, runner-up Matthew Haag, who interned at The Dallas Morning News will receive $100 and a plaque. The document details the winner and the the runner-up's accomplishments and work they've provided while interning.
Date:
October 11, 2006
Creator:
Texas Daily Newspaper Association
Object Type:
Text
System:
The UNT Digital Library
2006 U.S. Department of Energy Strategic Plan: Discovering the Solutions to Power and Secure America’s Future
The Department of Energy Organization Act, which created DOE, was enacted in 1977 and DOE officially came into existence in October of that year. That law brought together for the first time, not only most of the government’s energy programs, but also science and technology programs and defense responsibilities that included the design, construction, and testing of nuclear weapons. Over its history, DOE has shifted its emphasis and focus as the energy and security needs of the Nation have changed. Today, DOE stands at the forefront of helping the Nation meet our energy, scientific, environmental, and national security goals. These include developing and deploying new energy technologies, reducing our dependence on foreign energy sources, protecting our nuclear weapons stockpile, and ensuring that America remains competitive in the global marketplace. To help achieve these goals, President Bush has launched two key initiatives: the American Competitiveness Initiative (ACI) and the Advanced Energy Initiative (AEI). The President launched these initiatives recognizing that science, technology, and engineering hold the answers to many of the critical challenges our world faces. These new initiatives to spur scientific innovation and technology development expand DOE’s continuing support for the competitive energy markets, both domestically and internationally, and of …
Date:
October 11, 2006
Creator:
unknown
Object Type:
Text
System:
The UNT Digital Library
The Albany News (Albany, Tex.), Vol. 130, No. 50, Ed. 1 Thursday, May 11, 2006
Weekly newspaper from Albany, Texas that includes local, county, and state news along with extensive advertising.
Date:
May 11, 2006
Creator:
Lucas, Melinda L.
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Dallas, Tex.), Vol. 30, No. 183, Ed. 1 Wednesday, October 11, 2006
Free weekly newspaper that includes business and classified advertising.
Date:
October 11, 2006
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Greensheet (Houston, Tex.), Vol. 37, No. 323, Ed. 1 Friday, August 11, 2006
Free weekly newspaper that includes business and classified advertising.
Date:
August 11, 2006
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Greensheet (Arlington-Grand Prairie, Tex.), Vol. 30, No. 31, Ed. 1 Thursday, May 11, 2006
Free weekly newspaper that includes business and classified advertising.
Date:
May 11, 2006
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Greensheet (Houston, Tex.), Vol. 36, No. 581, Ed. 1 Wednesday, January 11, 2006
Free weekly newspaper that includes business and classified advertising.
Date:
January 11, 2006
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Greensheet (Houston, Tex.), Vol. 37, No. 425, Ed. 1 Wednesday, October 11, 2006
Free weekly newspaper that includes business and classified advertising.
Date:
October 11, 2006
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Dark Energy in the Dark Ages
Non-negligible dark energy density at high redshifts would indicate dark energy physics distinct from a cosmological constant or"reasonable'" canonical scalar fields. Such dark energy can be constrained tightly through investigation of the growth of structure, with limits of<~;;2percent of total energy density at z>> 1 for many models. Intermediate dark energy can have effects distinct from its energy density; the dark ages acceleration can be constrained to last less than 5percent of a Hubble e-fold time, exacerbating the coincidence problem. Both the total linear growth, or equivalently sigma 8, and the shape and evolution of the nonlinear mass power spectrum for z<2 (using the Linder-White nonlinear mapping prescription) provide important windows. Probes of growth, such as weak gravitational lensing, can interact with supernovae and CMB distance measurements to scan dark energy behavior over the entire range z=0-1100.
Date:
April 11, 2006
Creator:
Linder, Eric V.
Object Type:
Article
System:
The UNT Digital Library
Development of a Quantum-Limited Microwave Amplifier using a dc Superconducting Quantum Interference Device (dc-SQUID)
This report summarizes the research performed on the LDRD project 02-ERD-071 to develop a quantum-limited microwave amplifier based on a dc Superconducting Quantum Interference Device (dc-SQUID). This project began in June 2002 and concluded in May 2005. This project produced the lowest noise temperature amplifiers ever produced, both in absolute terms and in relation to the Standard Quantum Limit. Being an order of magnitude lower in noise than the best HFET devices available, they are of great interest to a number of groups. Potential applications are numerous, from dark-matter searches to national security applications in Quantum Information Processing. Collaborations started during this project are continuing with the goal of single-spin detection using the rf-SET. Publications are forthcoming covering both the experimental results and the theoretical modeling. The most important publication with the noise temperature results will appear after the low frequency follow-up experiment. The other publications in production cover the input impedance measurements and the resulting transmission line models.
Date:
December 11, 2006
Creator:
Kinion, D.
Object Type:
Report
System:
The UNT Digital Library
Derivatives, Risk Management, and Policy in the Energy Markets
This report provides a systematic guide to understanding the use of financial derivative contracts in the energy industry, focusing specifically on the petroleum and natural gas sectors.
Date:
December 11, 2006
Creator:
Pirog, Robert
Object Type:
Report
System:
The UNT Digital Library
National Environmental Education Act of 1990: Overview, Implementation, and Reauthorization Issues
This report presents an overview of the National Environmental Education Act of 1990, discusses appropriations, examines the Environmental Protection Agency's (EPA's) implementation of the act, and analyzes reauthorization issues relevant to legislation introduced in recent Congresses.
Date:
December 11, 2006
Creator:
Bearden, David M.
Object Type:
Report
System:
The UNT Digital Library
Wetlands: An Overview of Issues
This report discusses policy topics that involve wetlands. The U.S. Fish and Wildlife Service released its most recent periodic survey of changes in wetland acreage nationwide in March 2006. Covering 1998 to 2004, it concluded that during this time period there was a small net gain in overall wetland acres for the first time that this survey has been conducted. Others caution, however, that much of this gain was in ponds, rather than natural wetlands.
Date:
December 11, 2006
Creator:
Zinn, Jeffrey A. & Copeland, Claudia
Object Type:
Report
System:
The UNT Digital Library
FINAL REPORT - Mechanisms of CCl4 Retention and Slow Release in Model Porous Solids and Sediments
A magnetically coupled microbalance system has been used to measure adsorption and desorption isotherms and rates of desorption for carbon tetrachloride on dry prepared porous silica particles with narrow pore size distributions in the mesoporous range. Pore size distributions estimated from the carbon tetrachloride isotherms were found to be in close agreement with those determined using standard low temperature nitrogen adsorption. Three different types of particles were studied, with average pore diameters of 2.7 nm, 4.6 nm, and 5.9 nm. Prior to desorption rate studies, evacuated particulate samples were charged with volatile organic vapor at pressures sufficient to fill all mesopores with condensed fluid. Desorption rates into dry flowing helium were determined at 25 °C and atmospheric pressure, using the microbalance system combined with chromatographic analysis of the exit helium stream. Initial rates were found to decrease significantly, as mass adsorbed decreased. This residual mass was desorbing at such a low rate, that it can be considered a migration resistant fraction of the original mass adsorbed. Attempts to remove this residual mass at higher temperatures were partially successful; however, differences between the microbalance and gas chromatograph responses leave open uncertainty about whether the residual mass was pure carbon tetrachloride. To …
Date:
December 11, 2006
Creator:
Miller, Reid C. & Peyton, Brent M.
Object Type:
Report
System:
The UNT Digital Library
SULFATE RETENTION IN HIGH LEVEL WASTE SLUDGE BATCH 4 GLASSES: A PRELIMINARY ASSESSMENT
Early projections of the Sludge Batch 4 (SB4) composition predicted relatively high concentrations of alumina (Al{sub 2}O{sub 3}, 23.5 wt%) and sulfate (SO{sub 4}{sup 2-}, 1.2 wt%) in the sludge. A high concentration of Al{sub 2}O{sub 3} in the sludge, combined with Na{sub 2}O additions in the frit, raises the potential for nepheline crystallization in the glass. However, strategic frit development efforts at the Savannah River National Laboratory (SRNL) have shown that frits containing a relatively high concentration of B{sub 2}O{sub 3} can both suppress nepheline crystallization and improve melt rates. A high sulfate concentration is a concern to the DWPF as it can lead to the formation of sulfate inclusions in the glass and/or the formation of a molten, sulfate-rich phase atop the melt pool. To avoid these issues, a sulfate concentration limit of 0.4 wt% SO{sub 4}{sup 2-} in glass was originally set in the Product Composition Control System (PCCS) used at DWPF. It was later shown that this limit could be increased to 0.6 wt% SO{sub 4}{sup 2-} in glass for the Frit 418, Sludge Batch 3 (SB3) system.
Date:
December 11, 2006
Creator:
Fox, K; Tommy Edwards, T & David Peeler, D
Object Type:
Report
System:
The UNT Digital Library
The Self Attenuation Correction for Holdup Measurements, a Historical Perspective
Self attenuation has historically caused both conceptual as well as measurement problems. The purpose of this paper is to eliminate some of the historical confusion by reviewing the mathematical basis and by comparing several methods of correcting for self attenuation focusing on transmission as a central concept.
Date:
July 11, 2006
Creator:
Oberer, R. B.; Gunn, C. A. & Chiang, L. G.
Object Type:
Report
System:
The UNT Digital Library
From Question Answering to Visual Exploration
Research in Question Answering has focused on the quality of information retrieval or extraction using the metrics of precision and recall to judge success; these metrics drive toward finding the specific best answer(s) and are best supportive of a lookup type of search. These do not address the opportunity that users? natural language questions present for exploratory interactions. In this paper, we present an integrated Question Answering environment that combines a visual analytics tool for unstructured text and a state-of-the-art query expansion tool designed to compliment the cognitive processes associated with an information analysts work flow. Analysts are seldom looking for factoid answers to simple questions; their information needs are much more complex in that they may be interested in patterns of answers over time, conflicting information, and even related non-answer data may be critical to learning about a problem or reaching prudent conclusions. In our visual analytics tool, questions result in a comprehensive answer space that allows users to explore the variety within the answers and spot related information in the rest of the data. The exploratory nature of the dialog between the user and this system requires tailored evaluation methods that better address the evolving user goals and …
Date:
August 11, 2006
Creator:
McColgin, Dave W.; Gregory, Michelle L.; Hetzler, Elizabeth G. & Turner, Alan E.
Object Type:
Article
System:
The UNT Digital Library
The Dark Matter Halos of Massive, Relaxed Galaxy Clusters Observed With Chandra
We use the Chandra X-ray Observatory to study the dark matter halos of 34 massive, dynamically relaxed galaxy clusters, spanning the redshift range 0.06 < z < 0.7. The observed dark matter and total mass (dark-plus-luminous matter) profiles can be approximated by the Navarro Frenk & White (hereafter NFW) model for cold dark matter (CDM) halos; for {approx} 80 percent of the clusters, the NFW model provides a statistically acceptable fit. In contrast, the singular isothermal sphere model can, in almost every case, be completely ruled out. We observe a well-defined mass-concentration relation for the clusters with a normalization and intrinsic scatter in good agreement with the predictions from simulations. The slope of the mass-concentration relation, c {infinity} M{sub vir}{sup a}/(1 + z){sup b} with a = -0.41 {+-} 0.11 at 95 percent confidence, is steeper than the value a {approx} -0.1 predicted by CDM simulations for lower mass halos. With the slope a included as a free fit parameter, the redshift evolution of the concentration parameter, b = 0.54 {+-} 0.47 at 95 percent confidence, is also slower than, but marginally consistent with, the same simulations (b {approx} 1). Fixing a {approx} -0.1 leads to an apparent evolution that …
Date:
October 11, 2006
Creator:
Schmidt, Robert W.; /Heidelberg, Astron. Rechen Inst.; Allen, S.W. & /KIPAC, Menlo Park
Object Type:
Article
System:
The UNT Digital Library
DATABASE AND ANALYTICAL TOOL DEVELOPMENT FOR THE MANAGEMENT OF DATA DERIVED FROM US DOE (NETL) FUNDED FINE PARTICULATE (PM 2.5) RESEARCH
None
Date:
August 11, 2006
Creator:
Khosah, Robinson P. & Crawford, Charles G.
Object Type:
Report
System:
The UNT Digital Library