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The Protecting Seniors from Fraud Act: Status of the Triad Program

Description: Correspondence issued by the Government Accountability Office with an abstract that begins "The Protecting Seniors from Fraud Act of 2000 directed the Comptroller General to submit a report to Congress on the effectiveness of the Triad program by April 4, 2005. The program, sponsored at the national level by the National Sheriffs' Association (NSA), provides advice, training, and technical assistance to communitybased crime prevention programs for senior citizens but does not fund them. These c… more
Date: November 23, 2004
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
open access

Market failures, consumer preferences, and transaction costs inenergy efficiency purchase decisions

Description: Several factors limit the energy savings potential and increase the costs of energy-efficient technologies to consumers. These factors may usefully be placed into two categories; one category is what economists would define as market failures and the other is related to consumer preferences. This paper provides a conceptual framework for understanding the roles of these factors, and develops a methodology to quantify their effects on costs and potentials of two energy efficient end uses - resid… more
Date: November 23, 2004
Creator: Sathaye, Jayant & Murtishaw, Scott
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Local indium segregation and band structure in high efficiencygreen light emitting InGaN/GaN diodes

Description: GaN/InGaN light emitting diodes (LEDs) are commercialized for lighting applications because of the cost efficient way that they produce light of high brightness. Nevertheless, there is significant room for improving their external emission efficiency from typical values below 10 percent to more than 50 percent, which are obtainable by use of other materials systems that, however, do not cover the visible spectrum. In particular, green-light emitting diodes fall short in this respect, which is t… more
Date: November 23, 2004
Creator: Jinschek, Joerg R.; Erni, Rolf; Gardner, Nathan F.; Kim, AndrewY. & Kisielowski, Christian
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Secular Trends and Climate Drift in Coupled Ocean-Atmosphere General Circulation Models

Description: Coupled ocean-atmosphere general circulation models (coupled GCMs) with interactive sea ice are the primary tool for investigating possible future global warming and numerous other issues in climate science. A long-standing problem with such models is that when different components of the physical climate system are linked together, the simulated climate can drift away from observations unless constrained by ad hoc adjustments to interface fluxes. However, eleven modern coupled GCMs--including … more
Date: November 23, 2004
Creator: Covey, C C; Gleckler, P J; Phillips, T J & Bader, D C
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
captions transcript

[News Clip: Plano Baby Death]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: November 23, 2004
Duration: 1 minute 02 seconds
Creator: NBC 5 (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
open access

The Effect on Stellarator Neoclassical Transport of a Fluctuating Electrostatic Spectrum

Description: We study the effect on neoclassical transport of applying a fluctuating electrostatic spectrum, such as produced either by plasma turbulence, or imposed externally. For tokamaks, it is usually assumed that the neoclassical and ''anomalous'' contributions to the transport roughly superpose, D = D{sub nc} + D{sub an}, an intuition also used in modeling stellarators. An alternate intuition, however, is one where it is the collisional and anomalous scattering frequencies which superpose, {nu}{sub e… more
Date: November 23, 2004
Creator: Mynick, H. E. & Boozer, A. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Initial scientific uses of coherent synchrotron radiation inelectron storage rings

Description: The production of stable, high power, coherent synchrotron radiation at sub-terahertz frequency at the electron storage ring BESSY opens a new region in the electromagnetic spectrum to explore physical properties of materials. Just as conventional synchrotron radiation has been a boon to x-ray science, coherent synchrotron radiation may lead to many new innovations and discoveries in THz physics. With this new accelerator-based radiation source we have been able to extend traditional infrared m… more
Date: November 23, 2004
Creator: Basov, D. N.; Feikes, J.; Fried, D.; Holldack, K.; Hubers, H. W.; Kuske, P. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Solid State, Surface and Catalytic Studies of Oxides

Description: This project investigates the catalytic properties of oxides for the selective oxidative dehydrogenation of light alkanes and for hydrocarbon reduction of NO{sub x}. Various vanadium oxide based catalysts were investigated to elucidate the relationship between the chemical and structural properties of the catalysts and their selectivity for the formation of alkenes. It was found that vanadium oxide units that are less reducible give higher selectivities. For hydrocarbon reduction of NO{sub x}, … more
Date: November 23, 2004
Creator: Kung, H. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

ENGINEERED BARRIER SYSTEM: PHYSICAL AND CHEMICAL ENVIRONMENT

Description: The purpose of this report is to describe the evolution of the physical and chemical environmental conditions within the waste emplacement drifts of the repository, including the drip shield and waste package surfaces. The abstraction model is used in the total system performance assessment for the license application (TSPA LA) to assess the performance of the engineered barrier system and the waste form. This report develops and documents a set of these abstraction-level models that describe t… more
Date: November 23, 2004
Creator: Jarek, R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Optical injection probing of single ZnO tetrapod lasers

Description: The properties of zinc oxide (ZnO) nanotetrapod lasers are characterized by a novel ultrafast two-color pump/stimulated emission probe technique. Single legs of tetrapod species are isolated by a microscope objective, pumped by 267 nm pulses, and subjected to a time-delayed 400 nm optical injection pulse, which permits investigation of the ultrafast carrier dynamics in the nanosize materials. With the optical injection pulse included, a large increase in the stimulated emission at 400 nm occurs… more
Date: November 23, 2004
Creator: Szarko, Jodi M.; Song, Jae Kyu; Blackledge, Charles Wesley; Swart, Ingmar; Leone, Stephen R.; Li, Shihong et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

A General Initial Decomposition Reaction for Complex Metal Hydrides

Description: The initial thermally activated decomposition of several complex metal hydride compounds, to a binary alkali or alkaline hydride and a group IIIb metal hydride, appears to share a first step in their decomposition mechanisms. The application of this initial thermochemical decomposition step to several alanate compounds illustrates the generality of this approach. For LiAlH4, the decomposition data fall on the derived distribution plot calculated for NaAlH4.
Date: November 23, 2004
Creator: WALTERS, R
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Dike/Drift Interactions

Description: This report presents and documents the model components and analyses that represent potential processes associated with propagation of a magma-filled crack (dike) migrating upward toward the surface, intersection of the dike with repository drifts, flow of magma in the drifts, and post-magma emplacement effects on repository performance. The processes that describe upward migration of a dike and magma flow down the drift are referred to as the dike intrusion submodel. The post-magma emplacement… more
Date: November 23, 2004
Creator: Gaffiney, E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Thermal Management and Analysis for a Potential Yucca Mountain Repository

Description: In the current Yucca Mountain repository design concept, heat from the emplaced waste (mostly from spent nuclear fuel) would keep the temperature of the rock around the waste packages higher than the boiling point of water for hundreds to thousands of years after the repository is closed. The design concept allows below-boiling portions of the pillars between drifts to serve as pathways for the drainage of thermally mobilized water and percolating groundwater by limiting the distance that boili… more
Date: November 23, 2004
Creator: van Luik, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Closure Mechanism and Method for Spent Nuclear Fuel Canisters

Description: A canister is provided for storing, transporting, and/or disposing of spent nuclear fuel. The canister includes a canister shell, a top shield plug disposed within the canister, and a leak-tight closure arrangement. The closure arrangement includes a shear ring which forms a containment boundary of the canister, and which is welded to the canister shell and top shield plug. An outer seal plate, forming an outer seal, is disposed above the shear ring and is welded to the shield plug and the cani… more
Date: November 23, 2004
Creator: Doman, Marvin J.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
open access

On the Effect of Local Grain-Boundary Chemistry on the Macroscopic Mechanical Properties of a High Purity Y2O3-Al2O3-Containing Silicon Nitride Ceramic: Role of Oxygen

Description: The effects of grain-boundary chemistry on the mechanical properties were investigated on high-purity silicon nitride ceramics, specifically involving the role of oxygen. Varying the grain-boundary oxygen content, by control of oxidizing heat treatments and sintering additives, was found to result in a transition in fracture mechanism from transgranular to intergranular fracture, with an associated increase in fracture toughness. This phenomenon is correlated to an oxygen-induced change in grai… more
Date: November 23, 2004
Creator: Ziegler, A; McNaney, J M; Hoffman, M J & Ritchie, R O
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

DUNE - a granular flow code

Description: DUNE was designed to accurately model the spectrum of granular. Granular flow encompasses the motions of discrete particles. The particles are macroscopic in that there is no Brownian motion. The flow can be thought of as a dispersed phase (the particles) interacting with a fluid phase (air or water). Validation of the physical models proceeds in tandem with simple experimental confirmation. The current development team is working toward the goal of building a flexible architecture where existi… more
Date: November 23, 2004
Creator: Slone, D M; Cottom, T L & Bateson, W B
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

An Evaluation of the Difference Formulation for Photon Transport in a Two Level System

Description: In this paper we extend the difference formulation for radiation transport to the case of a single atomic line. We examine the accuracy, performance and stability of the difference formulation within the framework of the Symbolic Implicit Monte Carlo method. The difference formulation, introduced for thermal radiation by some of the authors, has the unique property that the transport equation is written in terms that become small for thick systems. We find that the difference formulation has a … more
Date: November 23, 2004
Creator: Daffin, F C; McKinley, M S; Brooks, E D & Szoke, A
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

AIDS Orphans and Vulnerable Children (OVC): Problems, Responses, and Issues for Congress

Description: This report discusses the issue of children that have been left as orphans due to AIDS taking their parents lives. Moreover, the report details that between 2001 and 2003 the number of children orphaned from AIDS increased by 3.5 million. The rate of orphaned children is only expected to increase in the future if massive spending is not issued to curb the problem.
Date: November 23, 2004
Creator: Salaam, Tiaji
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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