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CH2M Hill Hanford Group Inc (CHG) Information Resource Management (IRM) Strategic Plan

Description: The CH2M HILL Hanford Group, Inc. (CHG), Information Resource Management Strategic Plan is the top-level planning document for applying information and information resource management to achieve the CHG mission for the management of the River Protection Project waste tank farm.
Date: June 6, 2000
Creator: Nelson, R. L.
Partner: UNT Libraries Government Documents Department

Customer sited PV -- U.S. Markets developed from state policies

Description: The customer-sited PV market in the United States depends on state policies emerging from electric utility industry restructuring. These policies, most of which have appeared since 1996, reduce both the first cost and improve operating benefits. This analysis determines the breakeven turnkey cost of a PV system, from the customer ownership perspective, on a state by state basis. The results of this work are used by industry to target high-value markets and by policy makers to identify options which will result in the greatest economic and market development. Still intangible external PV benefits, such as environmental value, are also analyzed and gauged against existing/potential policy actions.
Date: June 6, 2000
Creator: Herig, C.; Thomas, H.; Perez, R. & Wenger, H.
Partner: UNT Libraries Government Documents Department

Database Development of Land Use Characteristics along Major U.S. Highways

Description: The major objective of the effort reported here is to develop methods to measure transportation land use at the national level (i.e., how much land and what types of lands are used by transportation systems) and to track changes over time. Data for transportation-related land use are important for environmental analysis, climate change studies, transportation-land use interaction research, policy decisions related to urban sprawl, and more. Transportation systems have direct effects on the environment through modification of vegetation, impacts on wildlife habitats, changes in local climate and alternation of drainage patterns (U.S. DOT/BTS, 1996; U.S. DOT/BTS, 1998; U.S. EPA, 1999; Maggi, 1994; Verhoef, 1994). However, without accurate and complete land use data, it is extremely difficult to study and evaluate these effects. Transportation systems also induce land use changes. Such indirect effects, while not the subject of this study, may be more significant than the direct land-use impacts of transportation infrastructure. Establishing an inventory of transportation infrastructure and adjacent land use and maintaining the inventory over time is an important first step towards understanding the full range of interactions between transportation and land use. While current and historic land use data are essential for investigating the relationships between transportation and land use, so far, no technological or institutional mechanisms have been established to systematically collect such data at the national level. The lack of long-term planning in land use data acquisition can be a major setback for future research in transportation land use studies. Land use data also play a key role in the understanding of problems related to urban sprawl and in policy decisions in dealing with these problems.
Date: June 6, 2000
Creator: Xiong, D
Partner: UNT Libraries Government Documents Department

Defense Budget: Fiscal Year 2000 Contingency Operations Costs and Funding

Description: A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO provided information on Department of Defense's (DOD) contingency operations costs and funding for fiscal year (FY) 2000, focusing on: (1) how DOD components identify incremental costs in support of contingency operations; and (2) the need for, and average cost of, mission rehearsal exercises conducted by the Army in preparation for contingency deployments."
Date: June 6, 2000
Creator: United States. General Accounting Office.
Partner: UNT Libraries Government Documents Department

Evaluation of Elevated Tritium Levels in Groundwater Downgradient from the 618-11 Burial Ground Phase I Investigation

Description: This report describes the results of the preliminary investigation of elevated tritium in groundwater discovered near the 618-11 burial ground, located in the eastern part of the Hanford Site.
Date: June 6, 2000
Creator: Dresel, P Evan; Williams, Bruce A.; Evans, John C.; Smith, Ronald M.; Thompson, Christopher J. & Hulstrom, Larry C.
Partner: UNT Libraries Government Documents Department

Evaluation of Elevated Tritium Levels in Groundwater Downgradient from the 618-11 Burial Ground Phase I Investigations

Description: This report describes the results of the preliminary investigation of elevated tritium in groundwater discovered near the 618-11 burial ground, located in the eastern part of the Hanford Site.
Date: June 6, 2000
Creator: Dresel, P Evan; Evans, John C; Hulstrom, Larry C; Smith, Ronald M; Thompson, Christopher J & Williams, Bruce A
Partner: UNT Libraries Government Documents Department

Financial Audits: American Battle Monuments Commission

Description: Testimony issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO discussed the American Battle Monuments Commission's (ABMC) financial statements audits, focusing on: (1) the legislative initiatives that were designed to improve financial management across the federal government; (2) the history of ABMC's financial accountability, focusing specifically on the World War II memorial fund; and (3) the results of GAO's most recent financial audits."
Date: June 6, 2000
Creator: United States. General Accounting Office.
Partner: UNT Libraries Government Documents Department

Financial Management: Agencies Face Many Challenges in Meeting the Goals of the Federal Financial Management Improvement Act

Description: Testimony issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO discussed the challenges most of the major federal department agencies face in meeting the basic expectations laid out in the Federal Financial Management Improvement Act of 1996 (FFMIA), focusing on: (1) problems with agencies' systems that prevent them from meeting the expectations of FFMIA; (2) how agencies are able to receive a "clean" audit opinion on their financial statements even though their financial systems do not comply with FFMIA's requirements; and (3) key elements in addressing these systems problems, including the importance of sound information technology investment and control processes."
Date: June 6, 2000
Creator: United States. General Accounting Office.
Partner: UNT Libraries Government Documents Department

Geometric Frustration in the Mixed Layer Pnictide Oxides

Description: The authors present results from a Monte Carlo investigation of a simple bilayer model with geometrically frustrated interactions similar to those found in the mixed layer pnictide oxides (Sr{sub 2}Mn{sub 3}Pn{sub 2}O{sub 2}, Pn = As, Sb). The model is composed of two inequivalent square lattices with nearest-neighbor intra- and interlayer interactions. They find a ground state composed of two independent Neel ordered layers when the interlayer exchange is an order of magnitude weaker than the intralayer exchange, as suggested by experiment. Evidence for local orthogonal order between the layers is found, but it occurs in regions of parameter space which are not experimentally realized. Qualitatively similar results were observed in models with a larger number of layers. They conclude that frustration caused by nearest-neighbor interactions in the mixed layer pnictide oxides is not sufficient to explain the long-range orthogonal order that is observed experimentally.
Date: June 6, 2000
Creator: Enjalran, M.; Scalettar, R.T. & Kauzlarich, S.M.
Partner: UNT Libraries Government Documents Department

In-situ sensors for process control of CuIn(Ga)Se{sub 2}: Phase 2 Annual Report, February 1999 - February 2000

Description: This report summarizes the work performed by Materials Research Group, Inc., in Phase 2 of this subcontract. Progress toward the development of in-situ sensors for CuIn(Ga)Se{sub 2} (CIGS) during Phase 2 includes: (1) design and assembly of a low-cost X-ray fluorescence (XRF) sensor suitable for in-situ use and real-time control; (2) demonstration of agreement between theory and experiment for XRF measurement simple systems using the XRF sensor; (3) demonstration of agreement between inductively coupled plasma (ICP) and XRF results over a wide variety of CIGS samples; (4) initial design of hardware protecting XRF sensor in heated, Se ambient; (5) resolution of a number of installation issues, including specification of measurement time versus sensor-to-sample distance, utilities requirements, and vibration restrictions; (6) development of software for sensor operation and the automatic extraction of composition data; and interaction with National CIS R and D Team industrial partners to specify and adapt sensor functions.
Date: June 6, 2000
Creator: Eisgruber, I. L.; Engel, J. R.; Treece, R. & Hollingsworth, R.
Partner: UNT Libraries Government Documents Department

Ion storage ring measurements of dielectronic recombination for astrophysically relevant Feq+ ions

Description: Iron ions provide many valuable plasma diagnostics for cosmic plasmas. The accuracy of these diagnostics, however, often depends on an accurate understanding of the ionization structure of the emitting gas. Dielectronic recombination (DR) is the dominant electron-ion recombination mechanism for most iron ions in cosmic plasmas. Using the heavy-ion storage ring at the Max-Planck-Institute for Nuclear Physics in Heidelberg, Germany, we have measured the low temperature DR rates for Fe{sup q+} where q = 15, 17, 18, and 19. These rates are important for photoionized gases which form in the media surrounding active galactic nuclei, X-ray binaries, and cataclysmic variables. Our results demonstrate that commonly used theoretical approximations for calculating low temperature DR rates can easily under- or over-estimate the DR rate by a factor of {approx} 2 or more. As essentially all DR rates used for modeling photoionized gases are calculated using these approximations, our results indicate that new DR rates are needed for almost all charge states of cosmically abundant elements. Measurements are underway for other charge states of iron.
Date: June 6, 2000
Creator: Savin, D W; Badnell, N R; Bartsch, T; Brandau, C; Chen, M H; Grieser, M et al.
Partner: UNT Libraries Government Documents Department

Non-Inductive Current Drive Modeling Extending Advanced Tokamak Operation to Steady State

Description: A critical issue for sustaining high performance, negative central shear (NCS) discharges is the ability to maintain current distributions that are maximum off axis. Sustaining such hollow current profiles in steady state requires the use of non-inductively driven current sources. On the DIII-D experiment, a combination of neutral beam current drive (NBCD) and bootstrap current have been used to create transient NCS discharges. The electron cyclotron heating (ECH) and current drive (ECCD) system is currently being upgraded from three gyrotrons to six to provide more than 3MW of absorbed power in long-pulse operation to help sustain the required off-axis current drive. This upgrade SuPporrs the long range goal of DIII-D to sustain high performance discharges with high values of normalized {beta}, {beta}{sub n} = {beta}/(I{sub p}/aB{sub T}), confinement enhancement factor, H, and neutron production rates while utilizing bootstrap current fraction, f{sub bs}, in excess of 50%. At these high performance levels, the likelihood of onset of MHD modes that spoil confinement indicates the need to control plasma profiles if we are to extend this operation to long pulse or steady state. To investigate the effectiveness of the EC system and to explore operating scenarios to sustain these discharges, we use time-dependent simulations of the equilibrium, transport and stability. We explore methods to directly alter the safety factor profile, q, through direct current drive or by localized electron heating to modify the bootstrap current profile. Time dependent simulations using both experimentally determined [1] and theory-based [2] energy transport models have been done. Here, we report on simulations exploring parametric dependencies of the heating, current drive, and profiles that affect our ability to sustain stable discharges.
Date: June 6, 2000
Creator: Casper, T.A.; Lodestro, L.L.; Pearlstein, L.D.; Porter, G.D.; Murakami, M.; Lao, L.L. et al.
Partner: UNT Libraries Government Documents Department

Numerical Errors in DNS: Total Run-Time Error

Description: Understanding numerical errors in simulations is critical for many reasons. First and foremost, one must some estimate concerning the reliability of the final result. Simply put, numerical errors add up over time and in most cases the increase is a linear process. It is quite possible that running a code for a very long time can lead to a solution which is completely meaningless even though it may look reasonable. This manuscript will begin a technical discussion on these issues.
Date: June 6, 2000
Creator: Jameson, L.
Partner: UNT Libraries Government Documents Department

Oak Ridge National Laboratory Facilities Revitalization Project - Project Management Plan

Description: The Facilities Revitalization Project (FRP) has been established at Oak Ridge National Laboratory (ORNL) to provide new and/or refurbished research and support facilities for the Laboratory's science mission. The FRP vision is to provide ORNL staff with world-class facilities, consolidated at the X-10 site, with the first phase of construction to be completed within five years. The project will utilize a combination of U.S. Department of Energy (DOE), State of Tennessee, and private-sector funds to accomplish the new construction, with the facilities requirements to be focused on support of the ORNL Institutional Plan. This FRP Project Management Plan has been developed to provide the framework under which the project will be conducted. It is intended that the FRP will be managed as a programmatic office, with primary resources for execution of the project to be obtained from the responsible organizations within ORNL (Engineering, Procurement, Strategic Planning, etc.). The FRP Project Management Plan includes a definition of the project scope, the organizational responsibilities, and project approach, including detailed Work Breakdown Structure (WBS), followed by more detailed discussions of each of the main WBS elements: Project Planning Basis, Facility Deactivation and Consolidation, and New Facilities Development. Finally, a general discussion of the overall project schedule and cost tracking approach is provided.
Date: June 6, 2000
Creator: Myrick, T.E.
Partner: UNT Libraries Government Documents Department

Plutonium Test Plan ORNL-VNIIEF Collaboration

Description: The goal of this test is to collect the cross correlation and HOS signatures from four detectors, arranged in a tetrahedron about different plutonium objects during ORNL/VNIIEF collaborative measurements in Sarov, Russia. The four detectors will be arranged in a tetrahedron with the plutonium object in the center of the tetrahedron. The following constraints about the detector geometry should be adhered to if, possible. The base of the tetrahedron (detectors No. 1, No. 2, and No. 3) should have 3 identical detectors (preferably 4 in. x 4 in., plastic scintillators) placed in an equilateral triangle; the length of one side of the base should be 60 cm (R{sub 12}=R{sub 23}=R{sub 13}=60 cm); the ideal height of the fourth detector above the base is {radical}(2/3) of the side of the equilateral triangle (height = {radical}(2/3) (60 cm) = 49 cm) and finally, any mismatched detector should be placed at the apex of the tetrahedron (i.e. top position). The collected signatures will be processed later. In order to perform the post processing, the peak efficiencies and neutron thresholds for each detector must be obtained by performing a standard Time-of-Flight measurement. Secondly, the response matrix data must be benchmarked for each detector/object configuration. This benchmark is determined by collecting the NMIS signatures in active mode for a californium source at two different points inside the tetrahedral volume of detectors.
Date: June 6, 2000
Creator: Chiang, L.G. & Mihalczo, J.T.
Partner: UNT Libraries Government Documents Department

Preliminary Report on Supersonic Jet Modeling

Description: The report figures show the problem setup and radiation temperature (Tr) results for a simulation of a solid gold half-hohlraum irradiated with the 12 specified Omega laser beams using the incident pulse shape for shot 18080. The experimental package is not included in this modeling; the hohlraum has a solid gold wall at the experimental package position. Figure-1 shows the initial zoning and focusing of the two sets of laser beams. Figure 2 identifies the 4 regions over which we track the Tr as the simulation proceeds. Figures 3a-3d are plots of Tr in keV versus time in ns for the regions specified in Figure 2. Figure 4 is a plot of Tr in keV versus time in ns. This Tr is computed from the emitted radiation flux using the original size of the laser entrance hole.
Date: June 6, 2000
Creator: Lasinski, B.F.
Partner: UNT Libraries Government Documents Department

Reconfigurable mobile manipulation for accident response

Description: The need for a telerobotic vehicle with hazard sensing and integral manipulation capabilities has been identified for use in transportation accidents where nuclear weapons are involved. The Accident Response Mobile Manipulation System (ARMMS) platform has been developed to provide remote dexterous manipulation and hazard sensing for the Accident Response Group (ARG) at Sandia National Laboratories. The ARMMS' mobility platform is a military HMMWV [High Mobility Multipurpose Wheeled Vehicle] that is teleoperated over RF or Fiber Optic communication channels. ARMMS is equipped with two high strength Schilling Titan II manipulators and a suite of hazardous gas and radiation sensors. Recently, a modular telerobotic control architecture call SMART (Sandia Modular Architecture for Robotic and Teleoperation) has been applied to ARMMS. SMART enables input devices and many system behaviors to be rapidly configured in the field for specific mission needs. This paper summarizes current SMART developments applied to ARMMS.
Date: June 6, 2000
Creator: ANDERSON,ROBERT J.; MORSE,WILLIAM D.; SHIREY,DAVID L.; CDEBACA,DANIEL M.; HOFFMAN JR.,JOHN P. & LUCY,WILLIAM E.
Partner: UNT Libraries Government Documents Department

Semiconductor e-h plasma lasers

Description: A new type of GaAs laser is based on the electron-hole plasma in a current filament and is not limited in size by p-n junctions. High energy, electrically controlled, compact, short-pulse lasers are useful for: active optical sensors (LADAR, range imaging, imaging through clouds, dust, smoke, or turbid water), direct optical ignition of fuels and explosives, optical recording, and micro-machining. The authors present a new class of semiconductor laser that can potentially produce much more short pulse energy than conventional (injection-pumped) semiconductor lasers (CSL) because this new laser is not limited in volume or aspect ratio by the depth of a p-n junction. They have tested current filament semiconductor lasers (CFSL) that have produced 75nJ of 890nm radiation in 1.5ns (50W peak), approximately ten times more energy than ISL. These lasers are created from current filaments in semi-insulating GaAs and, in contrast to CSL, are not based on current injection. Instead, low-field avalanche carrier generation produces a high-density, charge-neutral plasma channel with the required carrier density distribution for lasing. They have observed filaments as long as 3.4cm and several hundred microns in diameter in the high gain GaAs photoconductive switches. Their smallest dimension can be more than 100 times the carrier diffusion length in GaAs. This paper will report spectral narrowing, lasing thresholds, beam divergence, temporal narrowing, and energies which imply lasing for several configurations of CFSL. It will also discuss active volume scaling based on recent high current tests.
Date: June 6, 2000
Creator: ZUTAVERN,FRED J.; BACA,ALBERT G.; CHOW,WENG W.; HAFICH,MICHAEL J.; HJALMARSON,HAROLD P.; LOUBRIEL,GUILLERMO M. et al.
Partner: UNT Libraries Government Documents Department