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IRS' Efforts to Evaluate the Section 1203 Process for Employee Misconduct and Measure Its Impacts on Tax Administration

Description: Correspondence issued by the Government Accountability Office with an abstract that begins "Congress has long stressed the importance of proper treatment of taxpayers by the Internal Revenue Service (IRS). This emphasis was a major impetus for the IRS Restructuring and Reform Act of 1998, which included numerous additional protections for taxpayers. Among these was Section 1203, which defines 10 acts or omissions for which an IRS employee is to be fired. Most, but not all, of the acts or omissi… more
Date: September 27, 2004
Creator: United States. Government Accountability Office.
Partner: UNT Libraries Government Documents Department
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Financial Market Preparedness: Improvements Made, but More Action Needed to Prepare for Wide-Scale Disasters

Description: A letter report issued by the Government Accountability Office with an abstract that begins "In February 2003 reports, GAO identified actions needed to better prepare critical financial market participants for wide-scale disasters, such as terrorist attacks. To determine progress made since then, GAO assessed (1) actions that critical securities market organizations took to improve their ability to prevent and recover from disruptions, (2) actions that financial market and telecommunications in… more
Date: September 27, 2004
Creator: United States. Government Accountability Office.
Partner: UNT Libraries Government Documents Department
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Medicare Demonstration PPOs: Financial and Other Advantages for Plans, Few Advantages for Beneficiaries

Description: A letter report issued by the Government Accountability Office with an abstract that begins "Preferred provider organizations (PPO) are more prevalent than other types of health plans in the private market, but, in 2003, only six PPOs contracted to serve Medicare beneficiaries in Medicare+Choice (M+C), Medicare's private health plan option. In recent years, the Centers for Medicare & Medicaid Services (CMS), the agency that administers Medicare, initiated two demonstrations that include a total… more
Date: September 27, 2004
Creator: United States. Government Accountability Office.
Partner: UNT Libraries Government Documents Department
open access

Two Dimensional Simulations of Plastic-Shell, Direct-Drive Implosions on OMEGA

Description: Multidimensional hydrodynamic properties of high-adiabat direct-drive plastic-shell implosions on the OMEGA laser system [T. R. Boehly et al., Opt. Commun. 133, 495 (1997)] are investigated using the multidimensional hydrodynamic code, DRACO. Multimode simulations including the effects of nonuniform illumination and target roughness indicate that shell stability during the acceleration phase plays a critical role in determining target performance. For thick shells that remain integral during th… more
Date: September 27, 2004
Creator: Radha, P. B.; Goncharov, V. N.; Collins, T. B.; Delettrez, J. A.; Elbaz, Y.; Glebov, V. Y. et al.
Partner: UNT Libraries Government Documents Department
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H.R. 1417: The Copyright Royalty and Distribution Reform Act of 2004

Description: H.R. 1417, 108th Congress, first session, was introduced on March 25, 2003 and passed by the House on March 3, 2004. If enacted, this bill would make extensive changed to the procedural framework for adjudicating royalty rates for compulsory licenses under the Copyright Act. This report details the background and legislative action on the Copyright Royalty and Distribution Reform Act of 2004.
Date: September 27, 2004
Creator: Jeweler, Robin
Partner: UNT Libraries Government Documents Department
open access

Search for Subthreshold Neutron Production in Be

Description: We have searched for neutrons from the 3-body photon-induced reaction {sup 9}Be + {gamma} {yields} {alpha} + {alpha} + n using bremsstrahlung produced by electrons from a 2-MV Van de Graaff. The target was located within a block of beryllium surrounded by an array of {sup 3}He proportional counters embedded in paraffin. Based on energy and intensity calibrations of the accelerator and detector using the {sup 9}Be + {gamma} {yields} {sup 8}Be + n reaction, an upper limit of 93 nb (4{sigma}) was … more
Date: September 27, 2004
Creator: Chrien, R. E.; Alburger, D. E.; Sutter, R. J. & Wishart, J. F.
Partner: UNT Libraries Government Documents Department
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Dynamic Testing of Gasifier Refractory

Description: The University of North Dakota (UND) Chemical Engineering Department in conjunction with the UND Energy & Environmental Research Center (EERC) have initiated a program to thoroughly examine the combined chemical (reaction and phase change) and physical (erosion) effects experienced by a variety of refractory materials during both normal operation and thermal cycling under slagging coal gasification conditions. The goal of this work is to devise a mechanism of refractory loss under these conditi… more
Date: September 27, 2004
Creator: Mann, Michael D.; Shukla, Devdutt; Hong, Xi & Hurley, John P.
Partner: UNT Libraries Government Documents Department
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Advanced Reactor Licensing: Experience with Digital I&C Technology in Evolutionary Plants

Description: This report presents the findings from a study of experience with digital instrumentation and controls (I&C) technology in evolutionary nuclear power plants. In particular, this study evaluated regulatory approaches employed by the international nuclear power community for licensing advanced l&C systems and identified lessons learned. The report (1) gives an overview of the modern l&C technologies employed at numerous evolutionary nuclear power plants, (2) identifies performance exp… more
Date: September 27, 2004
Creator: Wood, RT
Partner: UNT Libraries Government Documents Department
open access

THERMAL CONDUCTIVITY OF THE POTENTIAL REPOSITORY HORIZON

Description: The primary purpose of this report is to assess the spatial variability and uncertainty of bulk thermal conductivity in the host horizon for the repository at Yucca Mountain. More specifically, the lithostratigraphic units studied are located within the Topopah Spring Tuff (Tpt) and consist of the upper lithophysal zone (Tptpul), the middle nonlithophysal zone (Tptpmn), the lower lithophysal zone (Tptpll), and the lower nonlithophysal zone (Tptpln). Design plans indicate that approximately 81 p… more
Date: September 27, 2004
Creator: BEAN, J.E.
Partner: UNT Libraries Government Documents Department
open access

Improved searching for spatial features in spatio-temporal data

Description: Scientific data analysis often requires mining large databases or data warehouses to find features in space. One important task is to find regions of interest such as stellar objects in astrophysics or flame fronts in combustion studies. Typically, this task is performed in two steps. The first step (searching) identifies records satisfying certain conditions specified by the user and outputs a set of cells. The second step (region-growing) groups these cells into connected regions. Most common… more
Date: September 27, 2004
Creator: Stockinger, Kurt & Wu, Kesheng
Partner: UNT Libraries Government Documents Department
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On-Line Monitoring and Diagnostics of the Integrity of Nuclear Plant Steam Generators and Heat Exchangers

Description: Integrity monitoring and flaw diagnostics of flat beams and tubular structures was investigated in this research task using guided acoustic signals. A piezo-sensor suite was deployed to activate and collect Lamb wave signals that propagate along metallic specimens. The dispersion curves of Lamb waves along plate and tubular structures are generated through numerical analysis. Several advanced techniques were explored to extract representative features from acoustic time series. Among them, the … more
Date: September 27, 2004
Creator: Upadhyaya, Belle R. & Hines, J. Wesley
Partner: UNT Libraries Government Documents Department
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How might a statistical cloud scheme be coupled to a mass-flux convection scheme?

Description: The coupling of statistical cloud schemes with mass-flux convection schemes is addressed. Source terms representing the impact of convection are derived within the framework of prognostic equations for the width and asymmetry of the probability distribution function of total water mixing ratio. The accuracy of these source terms is quantified by examining output from a cloud resolving model simulation of deep convection. Practical suggestions for inclusion of these source terms in large-scale m… more
Date: September 27, 2004
Creator: Klein, Stephen A.; Pincus, Robert; Hannay, Cecile & Xu, Kuan-man
Partner: UNT Libraries Government Documents Department
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Mineralization of Synthetic Polymer Scaffolds: A Bottom-upApproach for the Development of Artificial Bone

Description: The controlled integration of organic and inorganic components confers natural bone with superior mechanical properties. Bone biogenesis is thought to occur by templated mineralization of hard apatite crystals by an elastic protein scaffold, a process we sought to emulate with synthetic biomimetic hydrogel polymers. Crosslinked polymethacrylamide and polymethacrylate hydrogels were functionalized with mineral-binding ligands and used to template the formation of hydroxyapatite. Strong adhesion … more
Date: September 27, 2004
Creator: Song, Jie; Viengkham, Malathong & Bertozzi, Carolyn R.
Partner: UNT Libraries Government Documents Department
open access

Chlorinated Hydrocarbon Degradation in Plants: Mechanisms and Enhancement of Phytoremediation of Groundwater Contamination

Description: The research objectives for this report are: (1) Transform poplar and other tree species to extend and optimize chlorinated hydrocarbon (CHC) oxidative activities. (2) Determine the mechanisms of CHC oxidation in plants. (3) Isolate the genes responsible for CHC oxidation in plants. We have made significant progress toward an understanding of the biochemical mechanism of CHC transformation native to wild-type poplar. We have identified chloral, trichloroethanol, trichloroacetic acid, and dichlo… more
Date: September 27, 2004
Creator: Strand, Stuart
Partner: UNT Libraries Government Documents Department
open access

On-Line Monitoring and Diagnostics of the Integrity of Nuclear Plant Steam Generators and Heat Exchangers.

Description: The overall purpose of this Nuclear Engineering Education Research (NEER) project was to integrate new, innovative, and existing technologies to develop a fault diagnostics and characterization system for nuclear plant steam generators (SG) and heat exchangers (HX). Issues related to system level degradation of SG and HX tubing, including tube fouling, performance under reduced heat transfer area, and the damage caused by stress corrosion cracking, are the important factors that influence overa… more
Date: September 27, 2004
Creator: Upadhyaya, Belle R. & Hines, J. Wesley
Partner: UNT Libraries Government Documents Department
open access

Nuclear-Coupled Flow Instabilities and Their Effects on Dryout

Description: Nuclear-coupled flow/power oscillations in boiling water reactors (BWRs) are investigated experimentally and analytically. A detailed literature survey is performed to identify and classify instabilities in two-phase flow systems. The classification and the identification of the leading physical mechanisms of the two-phase flow instabilities are important to propose appropriate analytical models and scaling criteria for simulation. For the purpose of scaling and the analysis of the nonlinear as… more
Date: September 27, 2004
Creator: Ishii, M.; Sunn, X. & Kuran, S.
Partner: UNT Libraries Government Documents Department
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Controlling the electronic structure of nanocrystal assemblies by variation of the particle - particle interaction

Description: The change in the electronic structure of germanium nanocrystals is investigated as their concentration is increased from non-interacting, individual particles to assembled arrays of particles. The electronic structure of the individual nanoclusters shows clear effects due to quantum confinement which are lost in the concentrated assemblies of bare particles. When the surface of the individual particles is passivated, they retain their quantum confinement properties also upon assembly. These ef… more
Date: September 27, 2004
Creator: Bostedt, C; van Buuren, T; Willey, T M & Terminello, L J
Partner: UNT Libraries Government Documents Department
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National Park Management and Recreation

Description: This report details various issues regarding national park management and recreation. Issues include maintenance backlog, aircraft overflights, and the National Trails System
Date: September 27, 2004
Creator: Vincent, Carol Hardy
Partner: UNT Libraries Government Documents Department
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3-D Combinatorial Geometry in the MERCURY Monte Carlo Particle Transport Code

Description: Lawrence Livermore National Laboratory is in the process of developing a new Monte Carlo Particle Transport code named MERCURY. This new code features a 3-D Combinatorial Geometry tracking algorithm. This paper details some of the characteristics of this Monte Carlo tracker
Date: September 27, 2004
Creator: Greenman, G
Partner: UNT Libraries Government Documents Department
open access

Welding Stainless Steels and Refractory Metals Using Diode-Pumped Continuous Wave Nd:YAG Lasers

Description: This report provides an overview of a series of developmental welding studies performed on a 2.2 kW Rofin Sinar DY-022 Diode Pumped Continuous Wave (CW) Nd:YAG welder at Lawrence Livermore National Laboratory (LLNL). Several materials systems, ranging from refractory metals, such as commercially pure tantalum and vanadium, to austenitic stainless steels, including both 304L and 21-6-9 grades, are examined. Power input and travel speed are systematically varied during the welding of each materia… more
Date: September 27, 2004
Creator: Palmer, T A; Elmer, J W; Pong, R & Gauthier, M D
Partner: UNT Libraries Government Documents Department
open access

Synchrotron-Radiation-based Investigationsof the Electronic Structure of Pu

Description: Synchrotron radiation from the Advanced Light Source has been used to investigate the electronic structure of {alpha}-Pu and {delta}-Pu. Measurements include core level and valence band photoelectron spectroscopy, Resonant Photoelectron Spectroscopy (REPES), and X-ray Absorption Spectroscopy (XAS).
Date: September 27, 2004
Creator: Tobin, J. G.; Chung, B. W.; Terry, J.; Schulze, R. K.; Farr, J. D.; Heinzelman, K. et al.
Partner: UNT Libraries Government Documents Department
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