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Rural Housing: Changing the Definition of Rural Could Improve Eligibility Determinations

Description: A letter report issued by the Government Accountability Office with an abstract that begins "Rural America has become more diverse: technology and the spread of suburbia have linked rural areas to urban areas, resulting in diminished distinctions between the two. The Rural Housing Service (RHS) applies statutory requirements for eligibility that may not reflect changes in rural areas or best determine which areas qualify for its housing programs. GAO's objectives included assessments of how eli… more
Date: December 3, 2004
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

An Analysis of Energy Savings Possible Through Advances in Automotive Tooling Technology

Description: The use of lightweight and highly formable advanced materials in automobile and truck manufacturing has the potential to save fuel. Advances in tooling technology would promote the use of these materials. This report describes an energy savings analysis performed to approximate the potential fuel savings and consequential carbon-emission reductions that would be possible because of advances in tooling in the manufacturing of, in particular, non-powertrain components of passenger cars and heavy … more
Date: December 3, 2004
Creator: Rick Schmoyer, RLS
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Edge Localized Mode Dynamics and Transport in the Scrape-Off Layer of the DIII-D Tokamak

Description: High temporal and spatial resolution measurements in the boundary of the DIII-D tokamak show that edge localized modes (ELMs) are produced in the low field side, are poloidally localized and are composed of fast bursts ({approx}20 to 40 {micro}s long) of hot, dense plasma on a background of less dense, colder plasma ({approx}5 x 10{sup 18} m{sup {+-}3}, 50 eV) possibly created by the bursts themselves. The ELMs travel radially in the scrapeoff layer (SOL), starting at the separatrix at {approx}… more
Date: December 3, 2004
Creator: Boedo, J. A.; Rudakov, D. L.; Hollmann, E.; Gray, D. S.; Burrell, K. H.; Moyer, R. A. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Trade Study on Aggregation of Multiple 10-KW Solid Ozide Fuel Cell Power Modules

Description: According to the Solid State Energy Conversion Alliance (SECA) program guidelines, solid oxide fuel cells (SOFC) will be produced in the form of 3-10 kW modules for residential use. In addition to residential use, these modules can also be used in apartment buildings, hospitals, etc., where a higher power rating would be required. For example, a hospital might require a 250 kW power generating capacity. To provide this power using the SECA SOFC modules, 25 of the 10 kW modules would be required… more
Date: December 3, 2004
Creator: Ozpineci, B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Parallel Adaptive Multi-Mechanics Simulations using Diablo

Description: Coupled multi-mechanics simulations (such as thermal-stress and fluidstructure interaction problems) are of substantial interest to engineering analysts. In addition, adaptive mesh refinement techniques present an attractive alternative to current mesh generation procedures and provide quantitative error bounds that can be used for model verification. This paper discusses spatially adaptive multi-mechanics implicit simulations using the Diablo computer code. (U)
Date: December 3, 2004
Creator: Parsons, D & Solberg, J
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Social Security Reform: Economic Issues

Description: This report tackles the issue of Social Security reform from an economic perspective that focuses not merely on reform that achieves programmatic sustainability (sustainability within the trust fund), but reform that achieves sustainability for the government and economy as a whole. The President has indicated that Social Security reform will be a major issue in the 109th Congress. For some time comprehensive reform has been an issue of debate in Congress, but no major action has occurred.
Date: December 3, 2004
Creator: Gravelle, Jane & Labonte, Marc
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Mechanisms of Strontium and Uranium Removal From Radioactive Waste Simulant Solutions by the Sorbent Monosodium Titanate

Description: High-Level Radioactive Waste (HLW) is the priority problem for the U.S. Dept. of Energy's Environmental Management Program. Current HLW treatment processes at the Savannah River Site (Aiken, SC) include the use of monosodium titanate (MST, similar to NaTi{sub 2}O{sub 5}xH{sub 2}O) to concentrate radioactive strontium (Sr) and actinides. Mechanistic information about radionuclide uptake will provide us with insight about the reliability of MST treatments. We characterized the morphology of MST a… more
Date: December 3, 2004
Creator: Duff, Martine
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Intense ion beam transport in magnetic quadrupoles: Experiments on electron and gas effects

Description: Heavy-ion induction linacs for inertial fusion energy and high-energy density physics have an economic incentive to minimize the clearance between the beam edge and the aperture wall. This increases the risk from electron clouds and gas desorbed from walls. We have measured electron and gas emission from 1 MeV K{sup +} incident on surfaces near grazing incidence on the High-Current Experiment (HCX) at LBNL. Electron emission coefficients reach values >100, whereas gas desorption coefficients… more
Date: December 3, 2004
Creator: Seidl, P. A.; Molvik, A. W.; Bieniosek, F. M.; Cohen, R. H.; Faltens, A.; Friedman, A. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

CLIMATE CHANGE FUEL CELL PROGRAM

Description: This report discusses the first year of operation of a fuel cell power plant located at the Sheraton Edison Hotel, Edison, New Jersey. PPL EnergyPlus, LLC installed the plant under a contract with the Starwood Hotels & Resorts Worldwide, Inc. A DFC{reg_sign}300 fuel cell, manufactured by FuelCell Energy, Inc. of Danbury, CT was selected for the project. The fuel cell successfully operated from June 2003 to May 2004. This report discusses the performance of the plant during this period.
Date: December 3, 2004
Creator: Gabrielle, Steven A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Computer Simulation for Emergency Incident Management

Description: This report describes the findings and recommendations resulting from the Department of Homeland Security (DHS) Incident Management Simulation Workshop held by the DHS Advanced Scientific Computing Program in May 2004. This workshop brought senior representatives of the emergency response and incident-management communities together with modeling and simulation technologists from Department of Energy laboratories. The workshop provided an opportunity for incident responders to describe the natu… more
Date: December 3, 2004
Creator: Brown, D L
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Reconstruction of Detached Divertor Plasma Conditions in DIII-D Using Spectroscopic and Probe Data

Description: For some divertor aspects, such as detached plasmas or the private flux zone, it is not clear that the controlling physics has been fully identified. This is a particular concern when the details of the plasma are likely to be important in modeling the problem--for example, modeling co-deposition in detached inner divertors. An empirical method of ''reconstructing'' the plasma based on direct experimental measurements may be useful in such situations. It is shown that a detached plasma in the o… more
Date: December 3, 2004
Creator: Stangeby, P & Fenstermacher, M
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

DIVIMP Modeling of the Toroidally-Symmetrical Injection of 13CH4 into the Upper SOL of DIII-D

Description: As part of a study of carbon-tritium co-deposition, we carried out an experiment on DIII-D involving a toroidally symmetric injection of {sup 13}CH{sub 4} at the top of a LSN discharge. A Monte Carlo code, DIVIMP-HC, which includes molecular breakup of hydrocarbons, was used to model the region near the puff. The interpretive analysis indicates a parallel flow in the SOL of M{sub l} {approx} 0.4 directed toward the inner divertor. The CH{sub 4} is ionized in the periphery of the SOL and so the … more
Date: December 3, 2004
Creator: McLean, A. G.; Elder, J. D.; Stangeby, P. C.; Allen, S. L.; Brooks, N. H.; Fenstermacher, M. E. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

UTILIZATION OF RISK-BASED METHODOLOGY AND NON-DESTRUCTIVE ASSAY TECHNOLOGIES TO CHARACTERIZE AND DISPOSITION LEGACY LOW-LEVEL RADIOACTIVE WASTE

Description: A scaled risk and technology based disposition path was developed to characterize and certify Lawrence Livermore National Laboratory (LLNL) legacy waste (LW) for disposal at Envirocare of Utah and the Nevada Test Site (NTS). A combination of LLNL and commercially provided non-destructive assay (NDA) techniques were utilized to characterize waste and facilitate the safe, efficient and cost-effective characterization and disposition of 490 cubic meters of LW in Fiscal Year (FY) 2004. The approach… more
Date: December 3, 2004
Creator: Wolf, J
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Variation in Particle Pumping Due to Changes in Topology in High Performance DIII-D Plasmas

Description: Recent experiments on DIII-D point to the importance of two factors in determining the rate at which deuterium particles can be pumped at the divertor target(s): (1) the divertor magnetic balance, i.e., the degree to which the divertor topology is single-null (SN) or double-null (DN), and (2) the direction of the of B x {del}B ion drift with respect to the X-point(s). Changes in divertor magnetic balance near the DN shape have a much stronger effect on the pumping rate at the inner divertor tar… more
Date: December 3, 2004
Creator: Petrie, T; Brooks, N; Fenstermacher, M; Greenfield, C; Groth, M; Hyatt, A et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Far Scrape-Off Layer and Near Wall Plasma Studies in DIII-D

Description: Far scrape-off layer (SOL) plasma parameters in DIII-D depend strongly on the discharge density and confinement regime. In L-mode, cross-field transport increases with the average discharge density and elevates the far SOL density, thus increasing plasma-wall contact. Far SOL density near the low field side (LFS) of the main chamber wall also increases with decreasing plasma current and with decreasing outer wall gap. In H-mode, between edge localized modes (ELMs), plasma-wall contact is weaker… more
Date: December 3, 2004
Creator: Rudakov, D.; Boedo, J.; Moyer, R.; Brooks, N.; Doerner, R.; Evans, T. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Edge Stability and Performance of the ELM-Free Quiescent H-Mode and the Quiescent Double Barrier Mode on DIII-D

Description: The quiescent H (QH) mode, an edge localized mode (ELM)-free, high-confinement mode, combines well with an internal transport barrier to form quiescent double barrier (QDB) stationary state, high performance plasmas. The QH-mode edge pedestal pressure is similar to that seen in ELMing phases of the same discharge, with similar global energy confinement. The pedestal density in early ELMing phases of strongly pumped counter injection discharges drops and a transition to QH-mode occurs, leading t… more
Date: December 3, 2004
Creator: West, W. P.; Burrell, K. H.; Casper, T. A.; . Doyle, E. J.; Snyder, P. B.; Gohil, P. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Fe XVII Emission from Hot, Collisional Plasmas

Description: The ratios of the Fe XVII 3s {yields} 2p transitions to that of the dominant 3d {yields} 2p transition measured in high-temperature tokamak plasmas are compared to solar and astrophysical observations. Good agreement is found, indicating that the collisional line formation processes active in opacity-free, low-density, high-temperature laboratory plasmas are a good description of those found in astrophysical plasmas.
Date: December 3, 2004
Creator: Beiersdorfer, P.; Bitter, M.; Von Goeler, S. & Hill, K. W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Soft-X-ray spectra of highly charged Os, Bi, Th, and U ions in an electron beam ion trap

Description: Systematic variation of the electron-beam energy in an electron-beam ion trap has been employed to produce soft-X-ray spectra of Os, Bi, Th, and U with highest charge states ranging up to Ni-like ions. Guided by relativistic atomic structure calculations, the strongest lines have been identified with {Delta}n = 0 (n = 4 to n' = 4) transitions in Rb- to Cu-like ions. The rather weak 4p-4d transitions are much less affected by QED contributions than the dominant 4s-4p transitions. Our wavelength … more
Date: December 3, 2004
Creator: Trabert, E.; Beiersdorfer, P.; Fournier, K. B. & Chen, M. H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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