Search Results

open access

American Samoa: Accountability for Key Federal Grants Needs Improvement

Description: A letter report issued by the Government Accountability Office with an abstract that begins "American Samoa, a U.S. territory, relies on federal funding to support government operations and deliver critical services. The Secretary of the Interior has administrative responsibility for coordinating federal policy in the territory. Under the Single Audit Act of 1996, American Samoa is required to perform a yearly single audit of federal grants and other awards to ensure accountability. To better u… more
Date: December 17, 2004
Creator: United States. Government Accountability Office.
Partner: UNT Libraries Government Documents Department
open access

Defense Transformation: Clear Leadership, Accountability, and Management Tools Are Needed to Enhance DOD's Efforts to Transform Military Capabilities

Description: A letter report issued by the Government Accountability Office with an abstract that begins "Because future threats the nation may face are uncertain, and with many competing demands on its resources, the Department of Defense (DOD) has begun to transform its military capabilities, which will involve not only the acquisition of new weapon systems but also how the armed forces think, train, and fight. In 2003, DOD estimated $263 billion would be allocated from fiscal year 2004 through 2009 for t… more
Date: December 17, 2004
Creator: United States. Government Accountability Office.
Partner: UNT Libraries Government Documents Department
open access

Cost-Effective Cementitious Material Compatible with Yucca Mountain Repository Geochemistry

Description: The current plans for the Yucca Mountain (YM) repository project (YMP) use steel structures to stabilize the disposal drifts and connecting tunnels that are collectively over 100 kilometers in length. The potential exist to reduce the underground construction cost by 100s of millions of dollars and improve the repository's performance. These economic and engineering goals can be achieved by using the appropriate cementitious materials to build out these tunnels. This report describes the requir… more
Date: December 17, 2004
Creator: Dole, LR
Partner: UNT Libraries Government Documents Department
open access

Recent Developments in the MCNP-POLIMI Postprocessing Code

Description: The design and analysis of measurements performed with organic scintillators rely on the use of Monte Carlo codes to simulate the interaction of neutrons and photons, originating from fission and other reactions, with the materials present in the system and the radiation detectors. MCNP-PoliMi is a modification of the MCNP-4c code that models the physics of secondary particle emission from fission and other processes realistically. This characteristic allows for the simulation of the higher mom… more
Date: December 17, 2004
Creator: Pozzi, S.A.
Partner: UNT Libraries Government Documents Department
open access

Sport Utility Vehicles, Mini-Vans, and Light Trucks: An Overview of Fuel Economy and Emissions Standards

Description: Most sport utility vehicles, mini-vans, and pickups are classified as “light trucks” and thus are regulated less stringently than passenger cars under two major laws — the Energy Policy and Conservation Act for fuel economy standards, and the Clean Air Act for emissions standards. This report discusses the discrepancy between emissions and fuel economy standards for passenger cars and light trucks, how that discrepancy is changing, and legislative activity related to these issues.
Date: December 17, 2004
Creator: Yacobucci, Brent D.
Partner: UNT Libraries Government Documents Department
open access

A Non-Electrostatic Surface Complexation Approach to Modeling Radionuclide Migration at the Nevada Test Site: I. Iron Oxides and Calcite

Description: Reliable quantitative prediction of contaminant transport in subsurface environments is critical to evaluating the risks associated with radionuclide migration. As part of the Underground Test Area (UGTA) project, radionuclide transport away from various underground nuclear tests conducted in the saturated zone at the Nevada Test Site (NTS) is being examined. In the near-field environment, reactive transport simulations must account for changes in water chemistry and mineralogy as a function of… more
Date: December 17, 2004
Creator: Zavarin, M & Bruton, C J
Partner: UNT Libraries Government Documents Department
open access

Congressional Budget Actions in 2003

Description: This report provides information about the Congressional Budget Actions in 2003. During 2003 congress considered various budgetary measures. most measures pertained to 2004 and beyond.
Date: December 17, 2004
Creator: Heniff, Bill, Jr.
Partner: UNT Libraries Government Documents Department
open access

Campaign Financing

Description: This report discusses various issues regarding campaign finance law and potential options for policy responses.
Date: December 17, 2004
Creator: Cantor, Joseph E.
Partner: UNT Libraries Government Documents Department
open access

Topical Report: Task 1.4 Correlation of Capillary Suction Time with Leak-Off Behavior

Description: Core Leak-off tests are commonly used to ascertain the ability of a drilling fluid to seal permeable rock under downhole conditions. Unfortunately, these tests are expensive and require a long time to set up. To monitor fluid invasion trends and to evaluate potential treatments for reducing fluid invasion on location, a simpler screening test is highly desirable. The Capillary Suction Time (CST) Test has been used since the 1970's as a fast, yet reliable, method for characterizing fluid filtera… more
Date: December 17, 2004
Creator: Hoff, Tatiana & Growcock, Fred
Partner: UNT Libraries Government Documents Department
open access

Evaluation of normalization methods for cDNA microarray data by k-NN classification

Description: Non-biological factors give rise to unwanted variations in cDNA microarray data. There are many normalization methods designed to remove such variations. However, to date there have been few published systematic evaluations of these techniques for removing variations arising from dye biases in the context of downstream, higher-order analytical tasks such as classification. Ten location normalization methods that adjust spatial- and/or intensity-dependent dye biases, and three scale methods that… more
Date: December 17, 2004
Creator: Wu, Wei; Xing, Eric P; Myers, Connie; Mian, Saira & Bissell, Mina J
Partner: UNT Libraries Government Documents Department
open access

Experimental Studies of Quark-Gluon Structure of Nucleons and Nuclei

Description: The NMSU group has a lengthy history in the study of the nucleon structure and in particular its spin structure in terms of its fundamental constituents. This line of research is continuing in our current involvement in experiments at Brookhaven National Lab and the Thomas Jefferson National Accelerator Facility.
Date: December 17, 2004
Creator: Kyle, Gary
Partner: UNT Libraries Government Documents Department
open access

Implicit Solution of the Four-field Extended-magnetohydroynamic Equations using High-order High-continuity Finite Elements

Description: Here we describe a technique for solving the four-field extended-magnetohydrodynamic (MHD) equations in two dimensions. The introduction of triangular high-order finite elements with continuous first derivatives (C{sup 1} continuity) leads to a compact representation compatible with direct inversion of the associated sparse matrices. The split semi-implicit method is introduced and used to integrate the equations in time, yielding unconditional stability for arbitrary time step. The method is a… more
Date: December 17, 2004
Creator: Jardin, S. C. & Breslau, J. A.
Partner: UNT Libraries Government Documents Department
open access

21-PWR WASTE PACKAGE WITH ABSORBER PLATES LOADING CURVE EVALUATION

Description: The objective of this calculation is to evaluate the required minimum burnup as a function of initial pressurized water reactor (PWR) assembly enrichment that would permit loading of spent nuclear fuel into the 21 PWR waste package with absorber plates design as provided in Attachment IV. This calculation is an example of the application of the methodology presented in the ''Disposal Criticality Analysis Methodology Topical Report'' (YMP 2003). The scope of this calculation covers a range of en… more
Date: December 17, 2004
Creator: Scaglione, J.M.
Partner: UNT Libraries Government Documents Department
open access

IN-SITU MINING OF PHOSPHATE ORES

Description: Presently the mining of Florida phosphate requires the movement of over a 100-ton of materials (overburden, sand, clay) for every ton of phosphate concentrate recovered. Not only is this energy intensive, but it also causes significant stress on the environment. In 2003, the Department of Energy solicited ideas for innovative mining ideas that could significantly improve the efficiency of mining. An award was made to the University of Florida Engineering Research Center to evaluate the in situ … more
Date: December 17, 2004
Creator: El-Shall, H.; Stana, R.; El-Midany, A. & Malekzadah, S.
Partner: UNT Libraries Government Documents Department
open access

Crystallization of Mitochondrial Respiratory Complex II fromChicken Heart: A Membrane-Protein Complex Diffracting to 2.0Angstrom

Description: Procedure is presented for preparation of diffraction-quality crystals of a vertebrate mitochondrial respiratory Complex II. The crystals have the potential to diffract to at least 2.0 Angstrom with optimization of post-crystal-growth treatment and cryoprotection. This should allow determination of the structure of this important and medically relevant membrane protein complex at near-atomic resolution and provide great detail of the mode of binding of substrates and inhibitors at the two subst… more
Date: December 17, 2004
Creator: Huang, Li-shar; Borders, Toni M.; Shen, John T.; Wang, Chung-Jen & Berry, Edward A.
Partner: UNT Libraries Government Documents Department
open access

Higher Order Lagrange Finite Elements In M3D

Description: The M3D code has been using linear finite elements to represent multilevel MHD on 2-D poloidal planes. Triangular higher order elements, up to third order, are constructed here in order to provide M3D the capability to solve highly anisotropic transport problems. It is found that higher order elements are essential to resolve the thin transition layer characteristic of the anisotropic transport equation, particularly when the strong anisotropic direction is not aligned with one of the Cartesian… more
Date: December 17, 2004
Creator: Chen, J.; Strauss, H. R.; Jardin, S. C.; Park, W.; Sugiyama, L. E.; Fu, G. et al.
Partner: UNT Libraries Government Documents Department
open access

Sampling for Beryllium Surface Contamination using Wet, Dry and Alcohol Wipe Sampling

Description: This research project was conducted at the National Nuclear Security Administration's Kansas City Plant, operated by Honeywell Federal Manufacturing and Technologies, in conjunction with the Safety Sciences Department of Central Missouri State University, to compare relative removal efficiencies of three wipe sampling techniques currently used at Department of Energy facilities. Efficiencies of removal of beryllium contamination from typical painted surfaces were tested by wipe sampling with dr… more
Date: December 17, 2004
Creator: Kerr, Kent
Partner: UNT Libraries Government Documents Department
open access

Environmental policy and regulatory constraints to natural gas production.

Description: For the foreseeable future, most of the demand for natural gas in the United States will be met with domestic resources. Impediments, or constraints, to developing, producing, and delivering these resources can lead to price increases or supply disruptions. Previous analyses have identified lack of access to natural gas resources on federal lands as such an impediment. However, various other environmental constraints, including laws, regulations, and implementation procedures, can limit natural… more
Date: December 17, 2004
Creator: Elcock, D.
Partner: UNT Libraries Government Documents Department
open access

A Numerical Instability in an ADI Algorithm for Gyrokinetics

Description: We explore the implementation of an Alternating Direction Implicit (ADI) algorithm for a gyrokinetic plasma problem and its resulting numerical stability properties. This algorithm, which uses a standard ADI scheme to divide the field solve from the particle distribution function advance, has previously been found to work well for certain plasma kinetic problems involving one spatial and two velocity dimensions, including collisions and an electric field. However, for the gyrokinetic problem we… more
Date: December 17, 2004
Creator: Belli, E.A. & Hammett, G.W.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen