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open access

Social Security and Minorities: Earnings, Disability Incidence, and Mortality Are Key Factors That Influence Taxes Paid and Benefits Received

Description: A letter report issued by the General Accounting Office with an abstract that begins "Although Social Security's benefit and contribution provisions are neutral with respect to race, ethnicity, and gender, concerns about the experiences of minority groups under Social Security focus on whether they benefit less than whites, particularly because of the shorter life expectancy of blacks. These concerns are related to the concept of equity, or how benefits compare with taxes. To gain a thorough un… more
Date: April 23, 2003
Creator: United States. General Accounting Office.
Partner: UNT Libraries Government Documents Department
open access

Federal Pensions: DOL Oversight and Thrift Savings Plan Accountability

Description: A letter report issued by the General Accounting Office with an abstract that begins "The Thrift Savings Plan (TSP) is a retirement savings and investment plan for federal employees, governed by the Federal Retirement Thrift Investment Board (the TSP Board). Recent events relating to the TSP Board's contract to upgrade TSP's record keeping system have raised questions about the management of the TSP. In light of the TSP Board's actions relating to the record keeping system and the recent submis… more
Date: April 23, 2003
Creator: United States. General Accounting Office.
Partner: UNT Libraries Government Documents Department
open access

Astronomy Applications of Adaptive Optics at Lawrence Livermore National Laboratory

Description: Astronomical applications of adaptive optics at Lawrence Livermore National Laboratory (LLNL) has a history that extends from 1984. The program started with the Lick Observatory Adaptive Optics system and has progressed through the years to lever-larger telescopes: Keck, and now the proposed CELT (California Extremely Large Telescope) 30m telescope. LLNL AO continues to be at the forefront of AO development and science.
Date: April 23, 2003
Creator: Bauman, B J & Gavel, D T
Partner: UNT Libraries Government Documents Department
open access

Thermodynamic Model of Afterburning in Explosions

Description: Thermodynamic states encountered during afterburning of explosion products gases in air were analyzed with the Cheetah code. Results are displayed in the form of Le Chatelier diagrams: the locus of states of specific internal energy versus temperature, for six different condensed explosives charges. Accuracy of the results was confirmed by comparing the fuel and products curves with the heats of detonation and combustion, and species composition as measured in bomb calorimeter experiments. Resu… more
Date: April 23, 2003
Creator: Kuhl, A L; Howard, M & Fried, L
Partner: UNT Libraries Government Documents Department
captions transcript

[News Clip: New Leaders 01]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: April 23, 2003
Duration: 53 seconds
Creator: NBC 5 (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: New Leaders 02]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: April 23, 2003
Duration: 1 minute 32 seconds
Creator: NBC 5 (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
open access

8-oxoguainine enhances bending of DNA that favors binding of glycosylases

Description: Molecular dynamics (MD) simulations were carried out on the DNA oligonucleotide GGGAACAACTAG:CTAGTTGTTCCC in its native form and with guanine in the central G19:C6 base pair replaced by 8-oxoguanine (8oxoG). A box of explicit water molecules was used for solvation and Na+ counterions were added to neutralize the system. The direction and magnitude of global bending were assessed by a technique used previously to analyze simulations of DNA containing a thymine dimer. The presence of 8oxoG did no… more
Date: April 23, 2003
Creator: Miller, John H.
Partner: UNT Libraries Government Documents Department
open access

DEVELOPMENT OF METALLIC HOT GAS FILTERS

Description: Successful development of metallic filters with high temperature oxidation/corrosion resistance for fly ash capture is a key to enabling advanced coal combustion and power generation technologies. Compared to ceramic filters, metallic filters can offer increased resistance to impact and thermal fatigue, greatly improving filter reliability. A beneficial metallic filter structure, composed of a thin-wall (0.5mm) tube with uniform porosity (about 30%), is being developed using a unique spherical … more
Date: April 23, 2003
Creator: Anderson, I. E.; Gleeson, B. & Terpstra, R. L.
Partner: UNT Libraries Government Documents Department
open access

Development of Inorganic Membranes for Hydrogen Separation

Description: This paper presents information and data relative to recent advances in the development at Oak Ridge National Laboratory of porous inorganic membranes for high-temperature hydrogen separation. The Inorganic Membrane Technology Laboratory, which was formerly an organizational element of Bechtel Jacobs Company, LLC, was formally transferred to Oak Ridge National Laboratory on August 1, 2002, as a result of agreements reached between Bechtel Jacobs Company, the management and integration contracto… more
Date: April 23, 2003
Creator: Bischoff, Brian L. & Judkins, Roddie R.
Partner: UNT Libraries Government Documents Department
open access

Environmental Assessment of Ground Water Compliance at the Naturita, Colorado, UMTRA Project Site

Description: This Environmental Assessment addresses the environmental effects of a proposed action and the no action alternative to comply with U.S. Environmental Protection Agency (EPA) ground water standards at the Naturita, Colorado, Uranium Mill Tailings Remedial Action Project site. In 1998, the U.S. Department of Energy (DOE) completed surface cleanup at the site and encapsulated the tailings in a disposal cell 15 miles northwest near the former town of Uravan, Colorado. Ground water contaminants of … more
Date: April 23, 2003
Partner: UNT Libraries Government Documents Department
open access

Distribution System of the Future

Description: The distribution system of the future is going to be as much of a revolution to the electric energy industry as the wireless telephone has been to consumer communications. An electricity market transformation must occur before the changes can take place, but this evolution is already starting to occur in many parts of the country. In this paper, we discuss a vision for a future distribution system, areas that will be key for technology development, and the advantages of the new electricity mark… more
Date: April 23, 2003
Creator: Kueck, JD
Partner: UNT Libraries Government Documents Department
open access

Numerical Models of Waste Glass Models Part II Computational Modeling of DWPF

Description: Computational fluid-dynamics numerical models are developed for joule-heated slurry fed waste glass melters, such as the Defense Waste Processing Facility Melter. An important feature of the analyses is the simulation of the cold cap region with its thermally resistant foamy layer. Using a simplified model which describes the foam void fraction as a function of temperature, based on laboratory sample testing, characteristic features of the cold cap are simulated. Two- and three-dimensional mode… more
Date: April 23, 2003
Creator: Bickford, D.F.
Partner: UNT Libraries Government Documents Department
open access

Aqueous corrosion of aluminum-based nuclear fuel.

Description: As part of the U.S. National Spent Nuclear Fuel Program, aluminide fuels (UAl{sub x}) are being tested under conditions that might exist in the proposed repository at Yucca Mountain, Nevada. Intermittent drip tests at 90 C were completed for up to 183 days on partially declad, unirradiated, low-enriched UAl{sub x} samples. Through 183 days of exposure to modified water from the J-13 well at 90 C, the fuel coupon remained in good mechanical condition. Only a tarnishing of the surface was observe… more
Date: April 23, 2003
Creator: Kaminski, M.
Partner: UNT Libraries Government Documents Department
open access

Numerical Models of Waste Glass Models Part I Lumped Parameter Modeling of DWPF

Description: Defense Waste Processing Facility melter production data from three waste batches were analyzed using a lumped parameter approach which separates effects of melter feed, heater temperature, and power on melt rate under various modes of operation. A detailed distribution of power inputs and heat consumption pathways, as provided by the lumped parameter model, evaluated possible causes of melt rate reduction and other operational data. Theoretical aspects of the steady state analysis, as well as … more
Date: April 23, 2003
Creator: Bickford, D.F.
Partner: UNT Libraries Government Documents Department
open access

FISCHER-TROPSCH FUELS PRODUCTION AND DEMONSTRATION PROJECT

Description: This project has two primary purposes: (1) Build a small-footprint (SFP) fuel production plant to prove the feasibility of this relatively transportable technology on an intermediate scale (i.e. between laboratory-bench and commercial capacity) and produce as much as 150,000 gallons of hydrogen-saturated Fischer-Tropsch (FT) diesel fuel; and (2) Use the virtually sulfur-free fuel produced to demonstrate (over a period of at least six months) that it can not only be used in existing diesel engin… more
Date: April 23, 2003
Creator: Bergin, Stephen P.
Partner: UNT Libraries Government Documents Department
open access

Weak Lensing from Space I: Instrumentation and Survey Strategy

Description: A wide field space-based imaging telescope is necessary to fully exploit the technique of observing dark matter via weak gravitational lensing. This first paper in a three part series outlines the survey strategies and relevant instrumental parameters for such a mission. As a concrete example of hardware design, we consider the proposed Supernova/Acceleration Probe (SNAP). Using SNAP engineering models, we quantify the major contributions to this telescope's Point Spread Function (PSF). These P… more
Date: April 23, 2003
Creator: Rhodes, Jason; Refregier, Alexandre; Massey, Richard; Albert, Justin; Bacon, David; Bernstein, Gary et al.
Partner: UNT Libraries Government Documents Department
open access

["Republican Unity Coalition (RUC) Statement on Senator Santorum" press release]

Description: A press release written by Charles C. Francis, as Co-Chairman of the Republican Unity Coalition, about the recent comments of Senator Rick Santorum comparing homosexuality to bigamy, incest, polygamy, and adultery. Francis requests an immediate apology but does not condemn Santorum for his actions.
Date: April 23, 2003
Creator: Francis, Charles C.
Partner: UNT Libraries Special Collections
open access

Combustion of Shock-Dispersed Fuels in a Chamber

Description: In previous studies we have investigated after-burning effects of a fuel-rich explosive (TNT). In that case the detonation only releases about 30 % of the available energy, but generates a hot cloud of fuel that can burn in the ambient air, thus evoking an additional energy release that is distributed in space and time. The current series of small-scale experiments can be looked upon as a natural generalization of this mechanism: a booster charge disperses a (non-explosive) fuel, provides mixin… more
Date: April 23, 2003
Creator: Neuwald, P; Reichenbach, H & Kuhl, A L
Partner: UNT Libraries Government Documents Department

Ensemble: 2003-04-23 – Chamber Orchestra and Symphony Orchestra

Description: Ensemble concert performed at the UNT College of Music Winspear Hall.
Access: Restricted to UNT Community Members. Login required if off-campus.
Date: April 23, 2003
Duration: 1 hour 1 minute 35 seconds
Creator: University of North Texas. Chamber Orchestra.; University of North Texas. Symphony Orchestra. & Brusilow, Anshel
Partner: UNT Music Library
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