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Homeland Security: US-VISIT Has Not Fully Met Expectations and Longstanding Program Management Challenges Need to Be Addressed

Description: Testimony issued by the Government Accountability Office with an abstract that begins "The Department of Homeland Security (DHS) is investing billions of dollars in its U.S. Visitor and Immigrant Status Indicator Technology (US-VISIT) program to collect, maintain, and share information on selected foreign nationals who enter and exit the United States. The program uses biometric identifiers (digital fingerscans and photographs) to screen people against watch lists and to verify that a visitor i… more
Date: February 16, 2007
Creator: United States. Government Accountability Office.
Partner: UNT Libraries Government Documents Department
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U.S. Postal Service: Vulnerability to Fluctuating Fuel Prices Requires Improved Tracking and Monitoring of Consumption Information

Description: A letter report issued by the Government Accountability Office with an abstract that begins "The U.S. Postal Service (the Service) is dependent on fuel to support its mail delivery and transportation networks, as well as to heat and operate the over 34,000 postal facilities it occupies. The Service has been challenged by recent fuel price fluctuations, and the Postmaster General stated that gas prices were a primary reason for the proposed 2007 postal rate adjustment. Based on this challenge, C… more
Date: February 16, 2007
Creator: United States. Government Accountability Office.
Partner: UNT Libraries Government Documents Department
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Office of Special Counsel Needs to Follow Structured Life Cycle Management Practices for Its Case Tracking System

Description: Correspondence issued by the Government Accountability Office with an abstract that begins "The Office of Special Counsel (OSC) is charged with safeguarding the merit system by protecting federal employees and applicants for employment from prohibited personnel practices, such as discrimination, nepotism, and retaliation against whistleblowing. An individual who feels that a prohibited personnel practice has occurred may file a claim with OSC, which OSC then investigates and on which it may see… more
Date: February 16, 2007
Creator: United States. Government Accountability Office.
Partner: UNT Libraries Government Documents Department
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Capitol Visitor Center: Update on Status of Project's Schedule and Cost as of February 16, 2007

Description: Testimony issued by the Government Accountability Office with an abstract that begins "At the last Capitol Visitor Center (CVC) hearing, GAO reported that our assessment of the project's schedule and expected cost at completion was somewhat constrained because the CVC team was still analyzing the impact on the project's schedule and cost of recently identified changes required for certain components of the fire protection and security systems. The impact of these changes on the project is not y… more
Date: February 16, 2007
Creator: United States. Government Accountability Office.
Partner: UNT Libraries Government Documents Department
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Department of the Interior: Major Management Challenges

Description: Testimony issued by the Government Accountability Office with an abstract that begins "The Department of the Interior is responsible for managing much of the nation's vast natural resources. Its agencies implement an array of programs intended to protect these precious resources for future generations while also allowing certain uses of them, such as oil and gas development and recreation. In some cases, Interior is authorized to collect royalties and fees for these uses. Over the years, GAO ha… more
Date: February 16, 2007
Creator: United States. Government Accountability Office.
Partner: UNT Libraries Government Documents Department
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Tax Compliance: Multiple Approaches Are Needed to Reduce the Tax Gap

Description: Testimony issued by the Government Accountability Office with an abstract that begins "The tax gap--the difference between the tax amounts taxpayers pay voluntarily and on time and what they should pay under the law--has been a long-standing problem in spite of many efforts to reduce it. Most recently, the Internal Revenue Service (IRS) estimated a gross tax gap for tax year 2001 of $345 billion and estimated it would recover $55 billion of this gap, resulting in a net tax gap of $290 billion. … more
Date: February 16, 2007
Creator: United States. Government Accountability Office.
Partner: UNT Libraries Government Documents Department
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HANFORD DOUBLE SHELL TANK (DST) THERMAL & SEISMIC PROJECT INCREASED LIQUID LEVEL ANALYSIS FOR 241-AP TANK FARMS

Description: The overall scope of the project is to complete an up-to-date comprehensive analysis of record of the SDT System at Hanford. The "Double-Shell Tank (DST) Integrity Project - DST Thermal and Seismic Project" is in support of Tri-Party Agreement Milestone M-48-14.
Date: February 16, 2007
Creator: Mackey, T. C.; Deibler, J. E.; Johnson, K. I.; Pilli, S. P.; Karri, N. K.; Rinker, M. W. et al.
Partner: UNT Libraries Government Documents Department
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O(N) complexity algorithms for First-Principles Electronic Structure Calculations

Description: The fundamental equation governing a non-relativistic quantum system of N particles is the time-dependant Schroedinger Equation [Schroedinger, 1926]. In 1965, Kohn and Sham proposed to replace this original many-body problem by an auxiliary independent-particles problem that can be solved more easily (Density Functional Theory). Solving this simplified problem requires to find the subspace of dimension N spanned by the N eigenfunctions {Psi}{sub i} corresponding to the N lowest eigenvalues {var… more
Date: February 16, 2007
Creator: Fattebert, J. L.
Partner: UNT Libraries Government Documents Department
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The Advanced Technology Program

Description: This report presents perspectives on African economic trends and provides an overview of U.S. trade and investment flows with sub-Saharan Africa (SSA). It discusses the provisions of the African Growth and Opportunity Act (AGOA) and the changes that have occurred since its enactment. It concludes with a brief discussion of issues of congressional interest.
Date: February 16, 2007
Creator: Schacht, Wendy H.
Partner: UNT Libraries Government Documents Department
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Parallel auxiliary space AMG for definite Maxwell problems

Description: Motivated by the needs of large multi-physics simulation codes, we are interested in algebraic solvers for the linear systems arising in time-domain electromagnetic simulations. Our focus is on finite element discretization, and we are developing scalable parallel preconditioners which employ only fine-grid information, similar to algebraic multigrid (AMG) for diffusion problems. In the last few years, the search for efficient algebraic preconditioners for H(curl) bilinear forms has intensified… more
Date: February 16, 2007
Creator: Kolev, T V & Vassilevski, P S
Partner: UNT Libraries Government Documents Department
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Laser-Matter Interactions with a 527 nm Drive

Description: The primary goal of this Exploratory Research is to develop an understanding of laser-matter interactions with 527-nm light (2{omega}) for studies of interest to numerous Laboratory programs including inertial confinement fusion (ICF), material strength, radiation transport, and hydrodynamics. In addition, during the course of this work we will develop the enabling technology and prototype instrumentation to diagnose a high fluence laser beam for energy, power, and near field intensity profile … more
Date: February 16, 2007
Creator: Glenzer, S; Niemann, C; Witman, P; Wegner, P; Mason, D; Haynam, C et al.
Partner: UNT Libraries Government Documents Department
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3D Vectorial Time Domain Computational Integrated Photonics

Description: The design of integrated photonic structures poses considerable challenges. 3D-Time-Domain design tools are fundamental in enabling technologies such as all-optical logic, photonic bandgap sensors, THz imaging, and fast radiation diagnostics. Such technologies are essential to LLNL and WFO sponsors for a broad range of applications: encryption for communications and surveillance sensors (NSA, NAI and IDIV/PAT); high density optical interconnects for high-performance computing (ASCI); high-bandw… more
Date: February 16, 2007
Creator: Kallman, J S; Bond, T C; Koning, J M & Stowell, M L
Partner: UNT Libraries Government Documents Department
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3-D sedimentological and geophysical studies of clastic reservoir analogs: Facies architecture, reservoir properties, and flow behavior within delta front facies elements of the Cretaceous Wall Creek Member, Frontier Formation, Wyoming

Description: This project examined the internal architecture of delta front sandstones at two locations within the Turonian-age Wall Creek Member of the Frontier Formation, in Wyoming. The project involved traditional outcrop field work integrated with core-data, and 2D and 3D ground penetrating radar (GPR) imaging from behind the outcrops. The fluid-flow engineering work, handled through a collaborative grant given to PI Chris White at LSU, focused on effects on fluid flow of late-stage calcite cement nodu… more
Date: February 16, 2007
Creator: Bhattacharya, Janok P. & McMechan, George A.
Partner: UNT Libraries Government Documents Department
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Final report on the project entitled: Highly Preheated Combustion Air System with/without Oxygen Enrichment for Metal Processing Furnaces

Description: This work develops and demonstrates a laboratory-scale high temperature natural gas furnace that can operate with/without oxygen enrichment to significantly improve energy efficiency and reduce emissions. The laboratory-scale is 5ft in diameter & 8ft tall. This furnace was constructed and tested. This report demonstrates the efficiency and pollutant prevention capabilities of this test furnace. The project also developed optical detection technology to control the furnace output.
Date: February 16, 2007
Creator: Atreya, Arvind
Partner: UNT Libraries Government Documents Department
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HANFORD DOUBLE SHELL TANK (DST) THERMAL & SEISMIC PROJECT DYTRAN BENCHMARK ANALYSIS OF SEISMICALLY INDUCED FLUID STRUCTURE INTERACTION IN FLAT TOP TANKS

Description: The work reported in this document was performed in support of a project entitled ''Double-Shell Tank (DST) Integrity Project - DST Thermal and Seismic Analyses''. The overall scope of the project is to complete an up-to-date comprehensive analysis of record of the DST System at Hanford. The work described herein was performed in support of the seismic analysis of the DSTs. The thermal and operating loads analysis of the DSTs is documented in Rinker et al. (2004). The work herein was motivated … more
Date: February 16, 2007
Creator: MACKEY, T.C.
Partner: UNT Libraries Government Documents Department
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Tax Gap and Tax Enforcement

Description: This report defines tax gap concepts, explains the methodology used to calculate the tax gap, examines the relationship between the tax gap and enforcement, and briefly discusses the Internal Revenue Service's (IRS's) strategy to reduce the gross tax gap.
Date: February 16, 2007
Creator: Bickley, James M.
Partner: UNT Libraries Government Documents Department
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Air Quality Standards and Sound Science: What Role for CASAC?

Description: This report discusses the National Ambient Air Quality Standards (NAAQS), which are standards that define what EPA considers to be clean air. Their importance stems from the long and complicated implementation process that is set in motion by their establishment.
Date: February 16, 2007
Creator: McCarthy, James E.
Partner: UNT Libraries Government Documents Department
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