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3-D Experimental Fracture Analysis at High Temperature

Description: T*e, which is an elastic-plastic fracture parameter based on incremental theory of plasticity, was determined numerically and experimentally. The T*e integral of a tunneling crack in 2024-T3 aluminum, three point bend specimen was obtained through a hybrid analysis of moire interferometry and 3-D elastic-plastic finite element analysis. The results were verified by the good agreement between the experimentally and numerically determined T*e on the specimen surface.
Date: September 14, 2001
Creator: Jackson, John H. & Kobayashi, Albert S.
Partner: UNT Libraries Government Documents Department
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A 3-year plan for beam science in the heavy-ion fusion virtual national laboratory

Description: In December 1998, LBNL Director Charles Shank and LLNL Director Bruce Tarter signed a Memorandum of Agreement to create the Heavy-Ion Fusion Virtual National Laboratory (HIF-VNL) with the purpose of improving the efficiency and productivity of heavy ion research through coordination of the two laboratories' efforts under one technical director. In 1999, PPPL Director Robert Goldston signed the VNL MOA for PPPL's heavy-ion fusion group to join the VNL. LBNL and LLNL each contribute about 45% of … more
Date: September 10, 2001
Creator: Logan, B. Grant
Partner: UNT Libraries Government Documents Department
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The 2002 Farm Bill: Overview and Status

Description: This report provides an overview of the 2002 farm bill and an update status of the farm bill.
Date: September 27, 2001
Creator: Becker, Geoffrey S.
Partner: UNT Libraries Government Documents Department
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Across-the-Board Tax Cuts: Economic Issues

Description: This report examines economic issues relating to across-the-board tax cuts, focusing primarily on distributional issues. The report is divided into four sections. The first section provides a general overview of the tax system. The next discusses recent proposals relating to across-the-board tax cuts. The third section discusses methods of evaluating alternative types of across-the-board tax cuts. The final section briefly discusses issues of efficiency, simplicity, and stabilization policy.
Date: September 24, 2001
Creator: Gravelle, Jane G.
Partner: UNT Libraries Government Documents Department
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ACTINIDE-SPECIFIC INTERFACIAL CHEMISTRY OF MONOLAYER COATED MESOPOROUS CERAMICS

Description: The objective of this program was to design, synthesize, and evaluate high-efficiency, high-capacity sorbent materials capable of selectively sequestering actinides and other radionuclides from complex aqueous mixtures. One of the central goals of this project was to understand the fundamental interfacial science required to develop novel mesoporous materials coated with organized monolayers of rationally designed ligands, custom-tailored for binding specific actinide cations. This capability a… more
Date: September 30, 2001
Creator: Fryxell, Glen E.
Partner: UNT Libraries Government Documents Department
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Addendum to Composite Analysis for Low-Level Waste Disposal in the 200 Area Plateau of the Hanford Site

Description: This report summarizes efforts to complete an addendum analysis to the first iteration of the Composite Analysis for Low-Level Waste Disposal in the 200 Area Plateau of the Hanford Site (Composite Analysis). This document describes the background and performance objectives of the Composite Analysis and this addendum analysis. The methods used, results, and conclusions for this Addendum analysis are summarized, and recommendations are made for work to be undertaken in anticipation of a second an… more
Date: September 28, 2001
Creator: Bergeron, Marcel P.; Freeman, Eugene J.; Wurstner, Signe K.; Kincaid, Charles T.; Strenge, Dennis L.; Aaberg, Rosanne L. et al.
Partner: UNT Libraries Government Documents Department
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Addendum to Composite Analysis for Low-Level Waste Disposal in the 200 Area Plateau of the Hanford Site

Description: This report summarizes efforts to complete an addendum analysis to the first iteration of the Composite Analysis for Low-Level Waste Disposal in the 200 Area Plateau of the Hanford Site (Composite Analysis). This document describes the background and performance objectives of the Composite Analysis and this addendum analysis. The methods used, results, and conclusions for this Addendum analysis are summarized, and recommendations are made for work to be undertaken in anticipation of a second an… more
Date: September 28, 2001
Creator: Bergeron, Marcel P.; Freeman, Eugene J.; Wurstner, Signe K.; Kincaid, Charles T.; Coony, Mike M.; Strenge, Dennis L. et al.
Partner: UNT Libraries Government Documents Department
open access

Addressing the Manufacturing Issues Associated with the use of Ceramic Materials for Diesel Engine Components.

Description: This CRADA supports the objective of selecting appropriate ceramic materials for manufacturing several diesel engine components and addressing critical manufacturing issues associated with these components. Materials that were evaluated included several varieties of silicon nitride and stabilized zirconia. The critical manufacturing issues that were addressed included evaluation of the effect of grain size and the effect of the grinding process on mechanical properties, mechanical performance, … more
Date: September 12, 2001
Creator: McSpadden, SB
Partner: UNT Libraries Government Documents Department
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ADVANCED FLUE GAS CONDITIONING AS A RETROFIT UPGRADE TO ENHANCE PM COLLECTION FROM COAL-FIRED ELECTRIC UTILITY BOILERS

Description: The U.S. Department of Energy and ADA Environmental Solutions are engaged in a project to develop commercial flue gas conditioning additives. The objective is to develop conditioning agents that can help improve particulate control performance of smaller or under-sized electrostatic precipitators on utility coal-fired boilers. The new chemicals will be used to control both the electrical resistivity and the adhesion or cohesivity of the fly ash. There is a need to provide cost-effective and saf… more
Date: September 1, 2001
Creator: Baldrey, Kenneth E.
Partner: UNT Libraries Government Documents Department
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ADVANCED FUSION TECHNOLOGY RESEARCH AND DEVELOPMENT ANNUAL REPORT TO THE US DEPARTMENT OF ENERGY

Description: OAK A271 ADVANCED FUSION TECHNOLOGY RESEARCH AND DEVELOPMENT ANNUAL REPORT TO THE US DEPARTMENT OF ENERGY. The General Atomics (GA) Advanced Fusion Technology Program seeks to advance the knowledge base needed for next-generation fusion experiments, and ultimately for an economical and environmentally attractive fusion energy source. To achieve this objective, they carry out fusion systems design studies to evaluate the technologies needed for next-step experiments and power plants, and they co… more
Date: September 1, 2001
Creator: STAFF, PROJECT
Partner: UNT Libraries Government Documents Department
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ADVANCED HYBRID PARTICULATE COLLECTOR - PILOT-SCALE TESTING

Description: A new concept in particulate control, called an advanced hybrid particulate collector (AHPC), is being developed at the Energy and Environmental Research Center (EERC) with U.S. Department of Energy (DOE) funding. In addition to DOE and the EERC, the project team includes W.L. Gore and Associates, Inc., Allied Environmental Technologies, Inc., and the Big Stone power station. The AHPC combines the best features of electrostatic precipitators (ESPs) and baghouses in a unique approach to develop … more
Date: September 30, 2001
Creator: Zhuang, Ye; Miller, Stanley J.; Collings, Michael E. & Olderbak, Michelle R.
Partner: UNT Libraries Government Documents Department
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Advanced Signal Processing for Thermal Flaw Detection

Description: Dynamic thermography is a promising technology for inspecting metallic and composite structures used in high-consequence industries. However, the reliability and inspection sensitivity of this technology has historically been limited by the need for extensive operator experience and the use of human judgment and visual acuity to detect flaws in the large volume of infrared image data collected. To overcome these limitations new automated data analysis algorithms and software is needed. The prim… more
Date: September 1, 2001
Creator: Valley, Michael T.; Hansche, Bruce D.; Paez, Thomas L.; Urbina, Angel & Ashbaugh, D. Michael
Partner: UNT Libraries Government Documents Department
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ADVANCED STRIPPER GAS PRODUCED WATER REMEDIATION

Description: Natural gas and oil production from stripper wells also produces water contaminated with hydrocarbons, and in most locations, salts and trace elements. The hydrocarbons are not generally present in concentrations that allow the operator to economically recover these liquids. Produced liquids, (stripper gas water) which are predominantly water, present the operator with two options; purify the water to acceptable levels of contaminates, or pay for the disposal of the water. The project scope inv… more
Date: September 1, 2001
Creator: Sheldon, Ray W.
Partner: UNT Libraries Government Documents Department
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ADVANCED STRIPPER GAS PRODUCED WATER REMEDIATION

Description: Natural gas and oil production from stripper wells also produces water contaminated with hydrocarbons, and in most locations, salts and trace elements. The hydrocarbons are not generally present in concentrations that allow the operator to economically recover these liquids. Produced liquids, (stripper gas water) which are predominantly water, present the operator with two options; purify the water to acceptable levels of contaminates, or pay for the disposal of the water. The project scope inv… more
Date: September 1, 2001
Creator: Sheldon, Ray W.
Partner: UNT Libraries Government Documents Department
open access

ADVANCED STRIPPER GAS PRODUCED WATER REMEDIATION

Description: Natural gas and oil production from stripper wells also produces water contaminated with hydrocarbons, and in most locations, salts and trace elements. The hydrocarbons are not generally present in concentrations that allow the operator to economically recover these liquids. Produced liquids, (stripper gas water) which are predominantly water, present the operator with two options; purify the water to acceptable levels of contaminates, or pay for the disposal of the water. The project scope inv… more
Date: September 1, 2001
Creator: Sheldon, Ray W.
Partner: UNT Libraries Government Documents Department
open access

Africa: U.S. Foreign Assistance Issues

Description: This report discusses the issue of U.S. economic assistance to sub-Saharan Africa, highlighting the importance of continued assistance in light of U.S. national security and also various U.S.-led efforts to promote reform amongst African citizens themselves. U.S. assistance finds its way to Africa through a variety of channels, including the USAID-administered DA program, food aid programs, and indirect aid provided through international financial institutions and the United Nations.
Date: September 24, 2001
Creator: Copson, Raymond W.
Partner: UNT Libraries Government Documents Department
open access

Alfven Wave Tomography for Cold MHD Plasmas

Description: Alfven waves propagation in slightly nonuniform cold plasmas is studied by means of ideal magnetohydrodynamics (MHD) nonlinear equations. The evolution of the MHD spectrum is shown to be governed by a matrix linear differential equation with constant coefficients determined by the spectrum of quasi-static plasma density perturbations. The Alfven waves are shown not to affect the plasma density inhomogeneities, as they scatter off of them. The application of the MHD spectrum evolution equation t… more
Date: September 7, 2001
Creator: Dodin, I. Y. & Fisch, N. J.
Partner: UNT Libraries Government Documents Department
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Alpha-particle Measurements Needed for Burning Plasma Experiments

Description: The next major step in magnetic fusion studies will be the construction of a burning plasma (BP) experiment where the goals will be to achieve and understand the plasma behavior with the internal heating provided by fusion-generated alpha particles. Two devices with these physics goals have been proposed: the International Thermonuclear Experimental Reactor (ITER) and the Fusion Ignition Research Experiment (FIRE). Extensive conceptual design work for the instrumentation to try to meet the phys… more
Date: September 26, 2001
Creator: Young, Kenneth M.
Partner: UNT Libraries Government Documents Department
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ALTERNATIVE FUELS AND CHEMICALS FROM SYNTHESIS GAS

Description: The overall objectives of this program are to investigate potential technologies for the conversion of synthesis gas to oxygenated and hydrocarbon fuels and industrial chemicals, and to demonstrate the most promising technologies at DOE's LaPorte, Texas, Slurry Phase Alternative Fuels Development Unit (AFDU). The program will involve a continuation of the work performed under the Alternative Fuels from Coal-Derived Synthesis Gas Program and will draw upon information and technologies generated … more
Date: September 30, 2001
Partner: UNT Libraries Government Documents Department
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AMG/FOSLS for LLNL Applications

Description: The work included improving parallel scalability of the multilevel software package ML, and concentrated on improving robustness and convergence properties of the Smoothed Aggregation Multilevel Iterative Solver (SAMISdat(AMG)) for solution of second order problems. Although both scalar and nonscalar problems were targeted, the emphasis was on treatment of nonscalar problems of thin body elasticity such as encountered with ALE3D.
Date: September 23, 2001
Creator: Brezina, Marian & Jones, Jim E.
Partner: UNT Libraries Government Documents Department
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