Drug Courts: Background, Effectiveness, and Policy Issues for Congress (open access)

Drug Courts: Background, Effectiveness, and Policy Issues for Congress

This report includes an overview of state drug courts and the related federal grant program. The report then discusses some of the related issues that may be of interest to congress if it considers reauthorizing the drug court grant program or other related legislation.
Date: October 12, 2010
Creator: Franco, Celinda
Object Type: Report
System: The UNT Digital Library

Wind Energy Aerodynamics - Rotor, Wake, and Wind Plant

This presentation addresses the current state of wind energy technology in the United States.
Date: October 12, 2010
Creator: Schreck, S.
Object Type: Presentation
System: The UNT Digital Library
Near-Infrared Localized Surface Plasmon Resonances Arising from Free Carriers in Doped Quantum Dots (open access)

Near-Infrared Localized Surface Plasmon Resonances Arising from Free Carriers in Doped Quantum Dots

Quantum confinement of electronic wavefunctions in semiconductor quantum dots (QDs) yields discrete atom-like and tunable electronic levels, thereby allowing the engineering of excitation and emission spectra. Metal nanoparticles, on the other hand, display strong resonant interactions with light from localized surface plasmon resonance (LSPR) oscillations of free carriers, resulting in enhanced and geometrically tunable absorption and scattering resonances. The complementary attributes of these nanostructures lends strong interest toward integration into hybrid nanostructures to explore enhanced properties or the emergence of unique attributes arising from their interaction. However, the physicochemical interface between the two components can be limiting for energy transfer and synergistic coupling within such a hybrid nanostructure. Therefore, it is advantageous to realize both attributes, i.e., LSPRs and quantum confinement within the same nanostructure. Here, we describe well-defined LSPRs arising from p-type carriers in vacancy-doped semiconductor quantum dots. This opens up possibilities for light harvesting, non-linear optics, optical sensing and manipulation of solid-state processes in single nanocrystals.
Date: October 12, 2010
Creator: Jain, Prashant K.; Luther, Joey; Ewers, Trevor & Alivisatos, A. Paul
Object Type: Article
System: The UNT Digital Library
Preliminary Study of Strong-Sludge Gas Retention and Release Mechanisms in Clay Simulants (open access)

Preliminary Study of Strong-Sludge Gas Retention and Release Mechanisms in Clay Simulants

The Hanford Site has 28 double-shell tanks (DSTs) and 149 single-shell tanks (SSTs) containing radioactive wastes that are complex mixes of radioactive and chemical products. The mission of the Department of Energy’s River Protection Project is to retrieve and treat the Hanford tank waste for disposal and close the tank farms. A key aspect of the mission is to retrieve and transfer waste from the SSTs, which are at greater risk for leaking, into DSTs for interim storage until the waste is transferred to and treated in the Waste Treatment and Immobilization Plant. There is, however, limited space in the existing DSTs to accept waste transfers from the SSTs, and approaches to overcoming the limited DST space will benefit the overall mission. The purpose of this study is to summarize and analyze the key previous experiment that forms the basis for the relaxed controls and to summarize initial progress and results on new experiments focused on understanding the conditions that result in low gas retention. The work is ongoing; this report provides a summary of the initial findings. The previous large-scale test used about 50 m3 of sediment, which would be unwieldy for doing multiple parametric experiments. Accordingly, experiments will …
Date: October 12, 2010
Creator: Gauglitz, Phillip A.; Buchmiller, William C.; Probert, Samuel G. & Owen, Antionette T.
Object Type: Report
System: The UNT Digital Library
Alphabet Soup - An Overview of Diagnostic Techniques (open access)

Alphabet Soup - An Overview of Diagnostic Techniques

This report gives an overview of diagnostic techniques of "Alphabet Soup".
Date: October 12, 2010
Creator: Smedley, J.
Object Type: Article
System: The UNT Digital Library
Applications of Laser and Synchrotron Based ARPES to Photocathode Research (open access)

Applications of Laser and Synchrotron Based ARPES to Photocathode Research

Laser angle resolved photoelectron spectroscopy (ARPES) provides unique information about angle and energy distribution of photoelectrons. Laser ARPES gives unique insight into how NEA materials work. ARPES combined with some ancillary measurements gives a very complete picture of system electronic physics. For H:C[100] there is now a clear program for engineering as well as development analogous systems. ARPES well suited for identifying 'ideal' photocathodes with intrinsically low emittance and high QE.
Date: October 12, 2010
Creator: Rameau, J.; Smedley. J.; Muller, E.; Kidd, T.; Johnson, P.; Allen, P. et al.
Object Type: Article
System: The UNT Digital Library
Performance Assessment Transport Modeling of Uranium at the Area 5 Radioactive Waste Management Site at the Nevada National Security Site (open access)

Performance Assessment Transport Modeling of Uranium at the Area 5 Radioactive Waste Management Site at the Nevada National Security Site

Following is a brief summary of the assumptions that are pertinent to the radioactive isotope transport in the GoldSim Performance Assessment model of the Area 5 Radioactive Waste Management Site, with special emphasis on the water-phase reactive transport of uranium, which includes depleted uranium products.
Date: October 12, 2010
Creator: Waste, NSTec Radioactive
Object Type: Report
System: The UNT Digital Library
Fringe-jump Corrected FIReTIP For A Real-time Density Feedback Control System of NSTX Plasmas (open access)

Fringe-jump Corrected FIReTIP For A Real-time Density Feedback Control System of NSTX Plasmas

A simple device has been developed to deposit elemental lithium onto plasma facing components in the National Spherical Torus Experiment. Deposition is accomplished by dropping lithium powder into the plasma column. Once introduced, lithium particles quickly become entrained in scrape-off layer flow as an evaporating aerosol. Particles are delivered through a small central aperture in a computer-controlled resonating piezoelectric disk on which the powder is supported. The device has been used to deposit lithium both during discharges as well as prior to plasma breakdown. Clear improvements to plasma performance have been demonstrated. The use of this apparatus provides flexibility in the amount and timing of lithium deposition and, therefore, may benefit future fusion research devices.
Date: October 12, 2010
Creator: Juhn, J. W.; Hwang, Y. S.; Domier, C. W.; Luhmann, N. C. Jr.; Leblanc, B. P.; Mueller, D. et al.
Object Type: Report
System: The UNT Digital Library
RACORO Data Guide (open access)

RACORO Data Guide

This document provides an overview to the five-month RACORO Campaign. There are many details in such an extensive program that this document cannot capture; therefore, it should be thought of as a guide for acquainting yourself with the program and you are encouraged to contact the members involved. In particular, users of the data are strongly urged to contact instrument principal investigators (PIs) about use of the data. Further, it is highly recommended that studies using the data be done in collaboration with the instrument PIs, since they are in the best position to provide insights and or caveats associated with the data that should be considered.
Date: October 12, 2010
Creator: Vogelmann, A.
Object Type: Report
System: The UNT Digital Library
Energy-Consumption and Carbon-Emission Analysis of Vehicle and Component Manufacturing. (open access)

Energy-Consumption and Carbon-Emission Analysis of Vehicle and Component Manufacturing.

A model is presented for calculating the environmental burdens of the part manufacturing and vehicle assembly (VMA) stage of the vehicle life cycle. The approach is bottom-up, with a special focus on energy consumption and CO{sub 2} emissions. The model is applied to both conventional and advanced vehicles, the latter of which include aluminum-intensive, hybrid electric, plug-in hybrid electric and all-electric vehicles. An important component of the model, a weight-based distribution function of materials and associated transformation processes (casting, stamping, etc.), is developed from the United States Council for Automotive Research Generic Vehicle Life Cycle Inventory Study. As the approach is bottom-up, numerous transformation process data and plant operational data were extracted from the literature for use in representing the many operations included in the model. When the model was applied to conventional vehicles, reliable estimates of cumulative energy consumption (34 GJ/vehicle) and CO{sub 2} emission (2 tonnes/vehicle) were computed for the VMA life-cycle stage. The numerous data sets taken from the literature permitted the development of some statistics on model results. Because the model explicitly includes a greater coverage of relevant manufacturing processes than many earlier studies, our energy estimates are on the higher end of previously published values. …
Date: October 12, 2010
Creator: Sullivan, J. L.; Burnham, A.; Wang, M. & Systems, Energy
Object Type: Report
System: The UNT Digital Library
Child Nutrition and WIC Reauthorization: Issues and Legislation in the 111th Congress (open access)

Child Nutrition and WIC Reauthorization: Issues and Legislation in the 111th Congress

A comprehensive congressional review of the primary laws governing child nutrition and WIC program was scheduled for 2009. Congress did not meet the September 30, 2009, deadline for comprehensive reauthorization. This report contains recent developments, background, major issues, enacted legislation, and related information having to do with child nutrition and WIC reauthorization
Date: October 12, 2010
Creator: Richardson, Joe
Object Type: Report
System: The UNT Digital Library
Federal Register, Volume 75, Number 196, October 12, 2010, Pages 62449-62674 (open access)

Federal Register, Volume 75, Number 196, October 12, 2010, Pages 62449-62674

Daily publication of the U.S. Office of the Federal Register contains rules and regulations, proposed legislation and rule changes, and other notices, including "Presidential proclamations and Executive Orders, Federal agency documents having general applicability and legal effect, documents required to be published by act of Congress, and other Federal agency documents of public interest" (p. ii). Table of Contents starts on page iii.
Date: October 12, 2010
Creator: United States. Office of the Federal Register.
Object Type: Journal/Magazine/Newsletter
System: The UNT Digital Library