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HHS OIG: Review of Its Investigation of the Los Angeles County District Attorney's Bureau of Family Support Operations

Description: Correspondence issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO reviewed whether the Department of Health and Human Services' (HHS) Office of the Inspector General (OIG) conducted a thorough and complete investigation of possible misconduct by management of the Los Angeles District Attorney's Bureau of Family Support Operations (BFSO)."
Date: August 9, 1999
Creator: United States. General Accounting Office.
Partner: UNT Libraries Government Documents Department
open access

Information Security: Answers to Posthearing Questions

Description: Correspondence issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO responded to congressional questions regarding its June 24, 1999, testimony on the need for stronger information security management, focusing on: (1) the effectiveness of federal agencies' implementation of the 1987 Computer Security Act; (2) what gaps the Presidential Decision Directive (PDD) No. 63 will fill within existing federal programs that would improve the secu… more
Date: August 9, 1999
Creator: United States. General Accounting Office.
Partner: UNT Libraries Government Documents Department
open access

RIP Input Tables From WAPDEG for LA Design Selection: Repository Horizon Elevation- 2- Leel AML 50% and Near Maximum

Description: The purpose of this calculation is to document the WAPDEG version 3.09 (CRWMS M&O 1998b). Software Routine Report for WAPDEG (Version 3.09) simulations used to analyze waste package degradation and failure under the repository exposure conditions characterized by a two-tier thermal loading repository design. Also documented is the post-processing of these results into tables of waste-package-degradation-time histories suitable for use as input into the Integrated Probabilistic Simulator for… more
Date: August 9, 1999
Creator: Bullard, B.E.
Partner: UNT Libraries Government Documents Department
open access

Energy R&D in the United States

Description: In 1997, the US public and private sectors invested $205.7 billion in R&D. Private sector investments in R&D increased 34% between 1990 and 1997; over the same period the federal government decreased its expenditures by 15% in real terms. Projections of outyear federal budgets indicate the federal government will continue to reduce its investments in R&D for the foreseeable future. Defense R&D continues to be the largest area of concentration for federal government's R&D inv… more
Date: August 9, 1999
Creator: Dooley, J.J.
Partner: UNT Libraries Government Documents Department
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Energy R and D in Japan

Description: In 1997, the public and private sectors in Japan invested $90.3 billion in R and D. Japan is the second largest supporter of R and D after the United States. A very large percentage (79.4%) of all R and D in Japan is supported by the private sector. The prolonged economic recession that has plagued the Japanese economy for most of the 1990s has significantly reduced the scale of the Japanese R and D effort compared to what it would have been had the economy been more robust. The Japanese govern… more
Date: August 9, 1999
Creator: Dooley, J.J.
Partner: UNT Libraries Government Documents Department
open access

Quantifying Multivariate Classification Performance - the Problem of Overfitting

Description: We have been studying the use of spectral imagery to locate targets in spectrally interfering backgrounds. In making performance estimates for various sensors it has become evident that some calculations are unreliable because of overflying. Hence, we began a thorough study of the problem of overfitting in multivariate classification. In this paper we present some model based results describing the problem. From the model we know the ideal covariance matrix, the ideal discriminant vector, and t… more
Date: August 9, 1999
Creator: Stallard, Brian R. & Taylor, John G.
Partner: UNT Libraries Government Documents Department
open access

Properties and Performance of Ceramic Composite Components

Description: The objective of the Fossil Energy Advanced Research and Technology Development (AR and TD) Materials program is to conduct research and development on materials for longer-term fossil energy applications as well as for generic needs of various fossil fuel technologies. These needs have prompted research aimed toward a better understanding of material behavior in fossil energy environments and the development of new materials capable of substantial enhancement of plant operations, reliability, … more
Date: August 9, 1999
Creator: Case, S.W.; Halverson, H.G.; Carter, R.H.; Wone, M. & Reifsnider, K.L.
Partner: UNT Libraries Government Documents Department
open access

CT Measurements of Two-Phase Flow in Fractured Porous Media

Description: This report describes the design, construction, and preliminary results of an experiment that studies imbibition displacement in two fracture blocks. Multiphase (oil/water) displacements will be conducted at the same rate on three core configurations. The configurations are a compact core, a two-block system with a 1 mm spacer between the blocks, and a two-block system with no spacer. The blocks are sealed in epoxy so that saturation measurements can be made throughout the displacement experime… more
Date: August 9, 1999
Creator: Brigham, William E.; M., Castanier Louis & Hughes, Richard G.
Partner: UNT Libraries Government Documents Department
open access

Experimental and Theoretical Investigation of Multiphase Flow in Fractured Porous media, SUPRI TR-116, Topical Report

Description: The fluid transfer parameters between rock matrix and fracture are not well known. Consequently, simulation of fractured reservoirs uses, in general, very crude and unproven hypotheses such as zero capillary pressure in the fracture and/or relative permeability linear with saturation. In order to improve the understanding of flow in fractured media, an experimental study was conducted and numerical simulations of the experiments were made. A laboratory flow apparatus was built to obtain data on… more
Date: August 9, 1999
Creator: Akin, Serhat; Castanier, Louis M. & German, Edgar Rene Rangel
Partner: UNT Libraries Government Documents Department
open access

Computer Simulation of Single-Well Steam Assisted Gravity Drainage (SW-SAGD), SUPRI TR-119

Description: Steam assisted gravity drainage (SAGD) is an effective method of producing heavy oil and bitumen. In a typical SAGD approach, steam is injected into a horizontal well located directly above a horizontal producer. A steam chamber grows around the injection well and helps displace heated oil toward the production well. Single-well (SW) SAGD attempts to create a similar process using only one horizontal well. This may include steam injection from the toe of the horizontal well with production at t… more
Date: August 9, 1999
Creator: Elliott, Keith T. & Kovscek, Anthony R.
Partner: UNT Libraries Government Documents Department
open access

SUPRI Heavy Oil Research Program Twenty-First Annual Report, SUPRI TR-111

Description: The goal of the Stanford University Petroleum Research Institute is to conduct research directed toward increasing the recovery of heavy oils. Present, SUPRI is working in five main directions: (1) Flow Properties Studies - To assess the influence of different reservoir conditions (temperature and pressure) on the absolute and relative permeability to oil and water and on capillary pressure; (2) In-Situ Combustion - To evaluate the effect of different reservoir parameters on the in-situ combust… more
Date: August 9, 1999
Creator: Brigham, William E.; Castanier, Louis & Kovscek, Anthony R.
Partner: UNT Libraries Government Documents Department
open access

Office of River Protection Integrated Safety Management System Description

Description: Revision O was never issued. Finding safe and environmentally sound methods of storage and disposal of 54 million gallons of highly radioactive waste contained in 177 underground tanks is the largest challenge of Hanford cleanup. TWRS was established in 1991 and continues to integrate all aspects of the treatment and management of the high-level radioactive waste tanks. In fiscal Year 1997, program objectives were advanced in a number of areas. RL TWRS refocused the program toward retrieving, t… more
Date: August 9, 1999
Creator: CLARK, D.L.
Partner: UNT Libraries Government Documents Department
open access

InAsSb/InPSb Strained-Layer Superlattice Growth Using Metal-Organic Chemical Vapor Deposition

Description: The authors report on the metal-organic chemical vapor deposition (MOCVD) of strained layer superlattices (SLSs) of InAsSb/InPSb as well as mid-infrared optically pumped lasers grown using a high speed rotating disk-reactor (RDR). The devices contain AlAsSb cladding layers and strained, type I, InAsSb/InPSb active regions. By changing the layer thickness and composition of InAsSb/InPSb SLSs, they have prepared structures with low temperature (< 20 K) photoluminescence wavelengths ranging fro… more
Date: August 9, 1999
Creator: Biefeld, R.M.; Kurtz, S.R. & Phillips, J.D.
Partner: UNT Libraries Government Documents Department
open access

Pressure as a Probe of the Physics of Relaxor Ferroelectrics

Description: Pressure studies have provided new insights into the physics of compositionally-disordered ABO{sub 3} oxide relaxors. Specifically results are presented and discussed on a pressure-induced ferroelectric-to-relaxor crossover phenomenon, the continuous evolution of the energetics and dynamics of the relaxation process, and the interplay between pressure and electric field in determining the dielectric response.
Date: August 9, 1999
Creator: Samara, George A.
Partner: UNT Libraries Government Documents Department
open access

Modeling Permeability Alteration in Diatomite Reservoirs During Steam Drive, SUPRI TR-113

Description: There is an estimated 10 billion barrels of original oil in place (OOIP) in diatomaceous reservoirs in Kern County, California. These reservoirs have low permeability ranging from 0.1 to 10 mD. Injection pressure controlled steam drive has been found to be an effective way to recover oil from these reservoir. However, steam drive in these reservoirs has its own complications. The rock matrix is primarily silica (SiO2). It is a known fact that silica is soluble in hot water and its solubility va… more
Date: August 9, 1999
Creator: Bhat, Suniti Kumar & Kovscek, Anthony R.
Partner: UNT Libraries Government Documents Department
open access

Ultrathin Alumina Film Al-Sublattice Structure, Metal Island Nucleation at Terrace Point Defects, and How Hydroxylation Affects Wetting

Description: In this paper, we include for discussion three topics of current interest in metal oxide surface science. Using first principles density functional theory (DFT) [1] calculations, we have investigated: (1) the atomic-scale structure of experimentally-relevant ultrathin alumina films, (2) the role of common point defects in metal island nucleation on oxide terraces, and (3) the growth and morphology of metals on oxide surfaces which have high concentrations of a common impurity.
Date: August 9, 1999
Creator: Bogicevic, A. & Jennison, D. R.
Partner: UNT Libraries Government Documents Department
open access

Adopting a Long View to Energy R&D and Global Climate Change

Description: This report presents the results of an assessment of a test installation of two similar sulfur lamp, or S-lamp lighting systems, with hollow-light guide distribution. The S-lamp, developed by Fusion Lighting, Inc. with support from the U.S. Department of Energy (DOE), Office of Building Technology, Community and State Programs (BTS), was demonstrated as a prototype for the first time in 1994. The S-lamp embodies a new, microwave-powered, electrodeless technology that offers improved energy effi… more
Date: August 9, 1999
Creator: Doley, J. J. & Runci, P. J.
Partner: UNT Libraries Government Documents Department
open access

Suppression of Impurity Back Scattering in Double Quantum Wires: Theory Beyond the Born Approximation

Description: The effect of higher-order corrections to the Born approximation is studied for the previously obtained giant conductance enhancement in tunnel-coupled double quantum wires in a parallel magnetic field. The relative correction is found to be significant and depends on various effects such as the magnetic field, electron and impurity densities, impurity positions, symmetric and asymmetric doping profiles, and center barrier thickness.
Date: August 9, 1999
Creator: Huang, Danhong & Lyo, S.K.
Partner: UNT Libraries Government Documents Department
open access

SURPI Heavy Oil Research Program, Twenty-Second Annual Report, SUPRI TR-117

Description: The goal of the Stanford University Petroleum Research Institute is to conduct research directed toward increasing the recovery of heavy oils. Present, SUPRI is working in five main directions: (1) Flow Properties Studies - To assess the influence of different reservoir conditions (temperature and pressure) on the absolute and relative permeability to oil and water and on capillary pressure; (2) In-Situ Combustion - To evaluate the effect of different reservoir parameters on the in-situ combust… more
Date: August 9, 1999
Creator: Brigham, William E.; Castanier, Louis M. & Kovscek, Anthony R.
Partner: UNT Libraries Government Documents Department
open access

An Experimental Investigation of Foam Flow in Homogeneous and Heterogeneous Porous Media, SUPRI TR-112

Description: Foam is used to reduce the high mobility of gas-drive fluids and improve the contact between oil and these injected fluids. We require a better understanding of the effect of surfactant concentration on foam flow in porous media. Besides this, the literature on foam flow and transport in heterogeneous systems is sparse although the field situation is primarily heterogeneous and multidimensional. In this study, foam flow experiments were conducted first in homogeneous sand packs to investigate t… more
Date: August 9, 1999
Creator: Apaydin, Osman G.; Bertin, Henri; Castanier, Louis M. & Kovscek, Anthony R.
Partner: UNT Libraries Government Documents Department
open access

Accelerator Physics Challenges for Future Linear Colliders

Description: At the present time, there are a number of future linear collider designs with a center-of-mass energy of 500 GeV or more with luminosities in excess of 10{sup -34}cm{sup -2}s{sup -1} . Many of these designs are at an advanced state of development. However, to attain the high luminosity, the colliders require very small beam emittances, strong focusing, and very good stability. In this paper, some of the outstanding issues related to producing and maintaining the small beam sizes are discussed.… more
Date: August 9, 1999
Creator: Raubenheimer, Tor O
Partner: UNT Libraries Government Documents Department
open access

Using LNG as a Fuel in Heavy-Duty Tractors

Description: Recognizing the lack of operational data on alternative fuel heavy-truck trucks, NREL contracted with the Trucking Research Institute (TRI) in 1994 to obtain a cooperative agreement with Liquid Carbonic. The purpose of this agreement was to (1) purchase and operate liquid natural gas- (LNG-) powered heavy-duty tractor-trailers with prototype Detroit Diesel Corporation (DDC) Series 60 natural gas (S60G) engines in over-the-road commercial service applications; and (2) collect and provide operati… more
Date: August 9, 1999
Creator: Liquid Carbonic, Inc. and Trucking Research Institute
Partner: UNT Libraries Government Documents Department
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