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3-D Finite Element Analyses of the Egan Cavern Field

Description: Three-dimensional finite element analyses were performed for the two gas-filled storage caverns at the Egan field, Jennings dome, Louisiana. The effects of cavern enlargement on surface subsidence, storage loss, and cavern stability were investigated. The finite element model simulated the leaching of caverns to 6 and 8 billion cubic feet (BCF) and examined their performance at various operating conditions. Operating pressures varied from 0.15 psi/ft to 0.9 psi/ft at the bottom of the lowest ce… more
Date: February 1, 1999
Creator: Klamerus, E.W. & Ehgartner, B.L.
Item Type: Refine your search to only Report
open access

(6)Li, (7)Li Nuclear Magnetic Resonance Investigation of Lithium Coordination in Binary Phosphate Glasses

Description: {sup 6}Li and {sup 7}Li solid state magic angle spinning (MAS) nuclear magnetic resonance (NMR) spectroscopy has been used to investigate the local coordination environment of lithium in a series of xLi{sub 2}O {center_dot} (1-x)P{sub 2}O{sub 5} glasses, where 0.05 {le} x {le} 0.55. Both the {sup 6}Li and {sup 7}Li show chemical shift variations with changes in the Li{sub 2}O concentration, but the observed {sup 6}Li NMR chemical shifts closely approximate the true isotropic chemical shift and … more
Date: February 8, 1999
Creator: Alam, T.M.; Boyle, T.J.; Brow, R.K. & Conzone, S.
Item Type: Refine your search to only Article
open access

1999 Gordon Research Conference on Mammalian DNA Repair. Final Progress Report

Description: This Conference will examine DNA repair as the key component in genomic surveillance that is so crucial to the overall integrity and function of mammalian cells. Recent discoveries have catapulted the field of DNA repair into a pivotal position for fundamental investigations into oncology, aging, environmental health, and developmental biology. We hope to highlight the most promising and exciting avenues of research in robust discussions at this conference. This Mammalian DNA Repair Gordon Conf… more
Date: February 12, 1999
Item Type: Refine your search to only Article
open access

3D dislocation dynamics: stress-strain behavior and hardening mechanisms in FCC and BCC metals

Description: A dislocation dynamics (DD) model for plastic deformation, connecting the macroscopic mechanical properties to basic physical laws governing dislocation mobility and related interaction mechanisms, has been under development. In this model there is a set of critical reactions that determine the overall results of the simulations, such as the stress-strain curve. These reactions are, annihilation, formation of jogs, junctions, and dipoles, and cross-slip. In this paper we discuss these reactions… more
Date: February 19, 1999
Creator: Hirth, J P; Rhee, M; Zhib, H M & de la Rubia, T D
Item Type: Refine your search to only Report
open access

3D Imaging of Porous Media Using Laser Scanning Confocal Microscopy with Application to Microscale Transport Processes

Description: We present advances in the application of laser scanning confocal microscopy (LSCM) to image, reconstruct, and characterize statistically the microgeometry of porous geologic and engineering materials. We discuss technical and practical aspects of this imaging technique, including both its advantages and limitations. Confocal imaging can be used to optically section a material, with sub-micron resolution possible in the lateral and axial planes. The resultant volumetric image data, consisting o… more
Date: February 10, 1999
Creator: Fredrich, J.T.
Item Type: Refine your search to only Article
open access

Accelerating deactivation

Description: In recent years, the focus of the U.S. Department of Energy (DOE) complex has shifted from defense production to facility stabilization, decommissioning, and environmental restoration. This shift from production to cleanup requires a parallel shift from operations-focused management to project-focused management for an efficient facility deactivation. In the operation-focused management organization, activities are planned and executed based on production goals and are typically repetitive and … more
Date: February 1, 1999
Creator: FISHBACK, K.M.
Item Type: Refine your search to only Article
open access

Acquisition Reform: NASA's Internet Service Improves Access to Contracting Information

Description: A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a legislative requirement, GAO reviewed the National Aeronautics and Space Administration's (NASA) Acquisition Internet Service (NAIS), focusing on: (1) whether NAIS is an effective mechanism for disseminating procurement information to industry, including small businesses; and (2) the status of efforts to develop a governmentwide electronic procurement information system similar to NAIS."
Date: February 9, 1999
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Report
open access

An advanced ISOL facility based on ATLAS.

Description: The Argonne concept for an accelerator complex for efficiently producing high-quality radioactive beams from ion source energy up to 6-15 MeV/u is described. The Isotope-Separator-On-Line (ISOL) method is used. A high-power driver accelerator produces radionuclides in a target that is closely coupled to an ion source and mass separator. By using a driver accelerator which can deliver a variety of beams and energies the radionuclide production mechanisms can be chosen to optimize yields for the … more
Date: February 24, 1999
Creator: Nolen, J. A.
Item Type: Refine your search to only Article
open access

Advanced Oil Recovery Technologies for Improved Recovery from Slope Basin Clastic Reservoirs, Nash Draw Brushy Canyon Pool, Eddy County, NM

Description: Advanced reservoir characterization techniques are being used at the Nash Draw Brushy Canyon Pool project to develop reservoir management strategies for optimizing oil recovery from this Delaware reservoir. The reservoir characterization, geologic modeling, 3-D seismic interpretation, and simulation studies have provided a detailed model of the Brushy Canyon zones. This model was used to predict the success of different reservoir management scenarios and to aid in determining the most favorable… more
Date: February 1, 1999
Creator: Murphy, M. B.
Item Type: Refine your search to only Report
open access

Advanced Oil Recovery Technologies for Improved Recovery from Slope Basin Clastic Reservoirs, Nash Draw Brushy Canyon Pool, Eddy County, NM

Description: The Nash Draw Brushy Canyon Pool in Eddy County New Mexico is a cost-shared field demonstration project in the US Department of Energy Class II Program. A major goal of the Class III Program is to stimulate the use of advanced technologies to increase ultimate recovery from slope-basin clastic reservoirs. Advanced characterization techniques are being used at the Nash Draw project to develop reservoir management strategies for optimizing oil recovery from this Delaware reservoir. Analysis, inte… more
Date: February 24, 1999
Creator: Murphy, Mark B.
Item Type: Refine your search to only Report
open access

Advanced Reservoir Characterization and Evaluation of CO{sub 2} Gravity Drainage in the Naturally Fractured Spraberry Trend Area

Description: The overall goal of this project is to assess the economic feasibility of CO{sub 2} flooding the naturally fractured Spraberry Trend Area in West Texas. This objective is being accomplished by conducting research in four areas: (1) extensive characterization of the reservoirs, (2) experimental studies of crude oil/brine/rock (COBR) interactions in the reservoirs, (3) reservoir performance analysis, and, (4) experimental investigations on CO2 gravity drainage in Spraberry whole cores. This repor… more
Date: February 3, 1999
Creator: Schechter, D.S.
Item Type: Refine your search to only Report
open access

Agency Performance Plans: Examples of Practices That Can Improve Usefulness to Decisionmakers

Description: A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO: (1) identified and described practices that were applied in some federal agencies' 1999 performance plans that might, if consistently applied, improve the usefulness of all agencies' annual performance plans; and (2) provided examples from agencies' fiscal year 1999 performance plans that illustrate each practice."
Date: February 26, 1999
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Report
open access

Agreed-Upon Procedures: Airport and Airway Trust Fund Excise Taxes

Description: Correspondence issued by the General Accounting Office with an abstract that begins "Pursuant to a legislative requirement, GAO reviewed whether the net excise tax revenue distributed to the Airport and Airway Trust Fund (AATF) for the fiscal year (FY) ended September 30, 1998, is supported by the underlying records."
Date: February 25, 1999
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Text
open access

Agreed-Upon Procedures: Black Lung Disability Trust Fund Excise Taxes

Description: Correspondence issued by the General Accounting Office with an abstract that begins "Pursuant to a legislative requirement, GAO reviewed whether the net excise tax revenue distributed to the Black Lung Disability Trust Fund (BLDTF) for the fiscal year (FY) ended September 30, 1998, is supported by the underlying records."
Date: February 25, 1999
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Text
open access

Agreed-Upon Procedures: Federal Unemployment Taxes

Description: Correspondence issued by the General Accounting Office with an abstract that begins "Pursuant to a legislative requirement, GAO reviewed whether the net federal unemployment taxes (FUTA) collected by the Internal Revenue Service (IRS) for the fiscal year ended September 30, 1998, are supported by the underlying records."
Date: February 25, 1999
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Text
open access

Agreed-Upon Procedures: Highway Trust Fund Excise Taxes

Description: Correspondence issued by the General Accounting Office with an abstract that begins "Pursuant to a legislative requirement, GAO reviewed whether the net excise tax revenue distributed to the Highway Trust Fund (HTF) for the fiscal year (FY) ended September 30, 1998, is supported by the underlying records."
Date: February 25, 1999
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Text
open access

Airflow and dispersion around multiple buildings

Description: A three dimensional, finite element-based, flow and dispersion model is used to simulate the transport and fate of hazardous releases in the atmosphere. Numerical results are presented for two experimental studies: (1) Airflow and dispersion over multiple blocks in a wind tunnel; and (2) Tracer study of a point release in the neighborhood of a building complex.
Date: February 1, 1999
Creator: Chan, S. T.; Lee, R. L.; Leone, J. M. Jr. & Stevens, D. E.
Item Type: Refine your search to only Article
open access

Airport Financing: Annual Funding As Much As $3 Billion Less Than Planned Development

Description: Testimony issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO discussed airport funding issues, focusing on: (1) the amount airports are spending on capital development and the sources of those funds; (2) comparing airports' plans for development with current funding levels; and (3) what effect will various proposals to increase or make better use of existing funding have on airports' ability to fulfill their capital development plans."
Date: February 10, 1999
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Text
open access

Airport Financing: Smaller Airports Face Future Funding Shortfalls

Description: Testimony issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO discussed airport funding issues as they apply to smaller airports, focusing on: 1) how much funding has been made available to airports, particularly smaller airports, for their capital development and what are the sources of these funds; (2) comparing airports' plans for future development with current funding levels; and (3) what effect will various proposals to increase o… more
Date: February 22, 1999
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Text
open access

Aluminum powder metallurgy processing

Description: The objective of this dissertation is to explore the hypothesis that there is a strong linkage between gas atomization processing conditions, as-atomized aluminum powder characteristics, and the consolidation methodology required to make components from aluminum powder. The hypothesis was tested with pure aluminum powders produced by commercial air atomization, commercial inert gas atomization, and gas atomization reaction synthesis (GARS). A comparison of the GARS aluminum powders with the com… more
Date: February 12, 1999
Creator: Flumerfelt, J.F.
Item Type: Refine your search to only Report
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