States

Department of Energy: Certain Postretirement Benefits for Contractor Employees Are Unfunded and Program Oversight Could Be Improved (open access)

Department of Energy: Certain Postretirement Benefits for Contractor Employees Are Unfunded and Program Oversight Could Be Improved

A letter report issued by the General Accounting Office with an abstract that begins "The Department of Energy (DOE), which carries out its national security, environmental cleanup, and research missions through extensive use of contractors, faces significant costs for postretirement health and pension benefits for contractor employees. Given DOE's long history of using contractors and the rising cost of postretirement benefits, the Chairman, House Committee on Appropriations, Subcommittee on Energy and Water Development, asked GAO to (1) analyze DOE's estimated financial obligation for postretirement health and pension benefits for contractor employees at the end of fiscal year 2003, (2) determine how DOE evaluates its contractor postretirement health and pension benefit programs and assesses the comparative levels of benefits offered by contractors, and (3) assess how DOE's oversight of these benefits could be enhanced."
Date: April 15, 2004
Creator: United States. General Accounting Office.
Object Type: Report
System: The UNT Digital Library
Foreign Military Sales: Improved Army Controls Could Prevent Unauthorized Shipments of Classified Spare Parts and Items Containing Military Technology to Foreign Countries (open access)

Foreign Military Sales: Improved Army Controls Could Prevent Unauthorized Shipments of Classified Spare Parts and Items Containing Military Technology to Foreign Countries

A letter report issued by the General Accounting Office with an abstract that begins "From 1993 through 2002, the Department of Defense (DOD) delivered over $150 billion in services and defense articles--including classified spare parts and unclassified items containing military technology--to countries through foreign military sales programs. GAO was asked to review whether the Army's key internal controls adequately restricted blanket orders for (1) classified spare parts and (2) unclassified items containing military technology. GAO was also asked to determine if periodic tests were conducted to validate the Army's system and its logic."
Date: April 15, 2004
Creator: United States. General Accounting Office.
Object Type: Report
System: The UNT Digital Library
Financial Management: Fiscal Year 2003 Performance and Accountability Reports Provide Limited Information on Governmentwide Improper Payments (open access)

Financial Management: Fiscal Year 2003 Performance and Accountability Reports Provide Limited Information on Governmentwide Improper Payments

Testimony issued by the General Accounting Office with an abstract that begins "The Improper Payments Information Act of 2002 requires that agencies annually review all their programs and activities and identify those that may be susceptible to significant improper payments. It further requires those agencies with improper payments exceeding $10 million to provide a report on the actions being taken to reduce those payments. This testimony updates agency progress in implementing the act based on our review of agency fiscal year 2003 Performance and Accountability Reports for the 15 agencies and 46 programs previously cited in Office of Management and Budget Circular A-11, Section 57. It required those agencies and programs to report improper payment information to the Office of Management and Budget beginning with their fiscal year 2003 budget proposals. The areas we addressed were (1) agencies that reported improper payments information and the programs and activities on which that information was based, (2) amounts of improper payments reported, (3) initiatives agencies reported taking to reduce those payments and the results of those initiatives, and (4) impediments to the prevention or reduction of improper payments reported."
Date: April 15, 2004
Creator: United States. General Accounting Office.
Object Type: Text
System: The UNT Digital Library
Texas Attorney General Opinion: GA-0178 (open access)

Texas Attorney General Opinion: GA-0178

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Greg Abbott, regarding a legal question submitted for clarification; Whether, under sections 25.001 and 25.002 of the Education Code, a child who is newly enrolled in a public school may be prohibited from attending the school during the thirty-day period allowed to produce (1) immunization records; (2) proof that the child is not required to be immunized; or (3) proof that the child may be provisionally admitted under section 38.001(e), Education Code (RQ-0124-GA)
Date: April 15, 2004
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: GA-0179 (open access)

Texas Attorney General Opinion: GA-0179

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Greg Abbott, regarding a legal question submitted for clarification; Whether the Texas Automobile Thef Prevention Authority may assess a fee for insurance on, and use its funds to investigate the theft of, self-propelled farm equipment, construction equipment, boats, and aircraft (RQ-0127-GA)
Date: April 15, 2004
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Texas Attorney General Opinion: GA-0180 (open access)

Texas Attorney General Opinion: GA-0180

Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Greg Abbott, regarding a legal question submitted for clarification; Whether the Texas Commission for the Blind may impose costs for providing information to its licensees under the Federal Randolph-Sheppard Act, 20 United States Code section 107 (RQ-0134-GA)
Date: April 15, 2004
Creator: Texas. Attorney-General's Office.
Object Type: Text
System: The Portal to Texas History
Heavy Meson Production at a Low-Energy Photon Collider (open access)

Heavy Meson Production at a Low-Energy Photon Collider

A low-energy {gamma}{gamma} collider has been discussed in the context of a testbed for a {gamma}{gamma} interaction region at the Next Linear Collider(NLC). We consider the production of heavy mesons at such a testbed using Compton-backscattered photons and demonstrate that their production rivals or exceeds those by BELLE, BABAR or LEP where they are produced indirectly via virtual {gamma}{gamma} luminosities.
Date: April 15, 2004
Creator: Asztalos, S
Object Type: Article
System: The UNT Digital Library
Edward Teller's Scientific Life (open access)

Edward Teller's Scientific Life

Edward Teller was one of the great physicists of the twentieth century. His career began just after the key ideas of the quantum revolution of the 1920's were completed, opening vast areas of physics and chemistry to detailed understanding. Thus, his early work in theoretical physics focused on applying the new quantum theory to the understanding of diverse phenomena. These topics included chemical physics, diamagnetism, and nuclear physics. Later, he made key contributions to statistical mechanics, surface physics, solid state, and plasma physics. In many cases, the ideas in these papers are still rich with important ramifications.
Date: April 15, 2004
Creator: Libby, S B & Weiss, M S
Object Type: Article
System: The UNT Digital Library
Accessing High Pressure States Relevant to Core Conditions in the Giant Planets (open access)

Accessing High Pressure States Relevant to Core Conditions in the Giant Planets

We have designed an experimental technique to use on the National Ignition Facility (NIF) laser to achieve very high pressure (P{sub max} > 10 Mbar = 1000 GPa), dense states of matter at moderate temperatures (kT < 0.5 eV = 6000 K), relevant to the core conditions of the giant planets. A discussion of the conditions in the interiors of the giant planets is given, and an experimental design that can approach those conditions is described.
Date: April 15, 2004
Creator: Remington, B. A.; Cavallo, R. M.; Edwards, M. J.; Ho, D. D.; Lorenz, K. T.; Lorenzana, H. E. et al.
Object Type: Article
System: The UNT Digital Library
Methanol Steam Reformer on a Silicon Wafer (open access)

Methanol Steam Reformer on a Silicon Wafer

A study of the reforming rates, heat transfer and flow through a methanol reforming catalytic microreactor fabricated on a silicon wafer are presented. Comparison of computed and measured conversion efficiencies are shown to be favorable. Concepts for insulating the reactor while maintaining small overall size and starting operation from ambient temperature are analyzed.
Date: April 15, 2004
Creator: Park, H; Malen, J; Piggott, T; Morse, J; Sopchak, D; Greif, R et al.
Object Type: Article
System: The UNT Digital Library
Compatibility Study of Protective Relaying in a Grid-Connected Fuel Cell (open access)

Compatibility Study of Protective Relaying in a Grid-Connected Fuel Cell

A 200-kW fuel cell produced by International Fuel Cells (IFC), a United Technologies Company, began operation at the National Transportation Research Center (NTRC) in early June 2003. The NTRC is a joint Oak Ridge National laboratory (ORNL) and University of Tennessee research facility located in Knoxville, Tennessee. This research activity investigated the protective relaying functions of this fully commercialized fuel cell power plant, which uses ''synthesized'' protective relays. The project's goal is to characterize the compatibility between the fuel cell's interconnection protection system and the local distribution system or electric power system (EPS). ORNL, with assistance from the Electric Power Research Institute-Power Electronics Applications Center (EPRI-PEAC) in Knoxville, Tennessee, monitored and characterized the system compatibility over a period of 6 months. Distribution utility engineers are distrustful of or simply uncomfortable with the protective relaying and hardware provided as part of distributed generation (DG) plants. Part of this mistrust is due to the fact that utilities generally rely on hardware from certain manufacturers whose reliability is well established based on performance over many years or even decades. Another source of concern is the fact that fuel cells and other types of DG do not use conventional relays but, instead, the protective …
Date: April 15, 2004
Creator: Staunton, R.H.
Object Type: Report
System: The UNT Digital Library
Comments on Shimony's analysis (open access)

Comments on Shimony's analysis

Shimony's method of analysis does not distinguish adequately between a legitimate assumption of no faster-than-light action in one direction and the to-be-proved assertion of faster-than-light transfer of information in the opposite direction. The virtue is noted of replacing the logical framework based counterfactual concepts by one based on the concept of fixed past and open future.
Date: April 15, 2004
Creator: Stapp, Henry P.
Object Type: Report
System: The UNT Digital Library
ENHANCED PRACTICAL PHOTOSYNTHETIC CO{sub 2} MITIGATION (open access)

ENHANCED PRACTICAL PHOTOSYNTHETIC CO{sub 2} MITIGATION

This quarterly report documents significant achievements in the Enhanced Practical Photosynthetic CO{sub 2} Mitigation project during the period from 1/2/2004 through 4/1/2004. Specific results and accomplishments for the first quarter of 2004 include: (1) CRF-2 test system: After the recent successful test results were achieved, the system was taken off-line for re-sealing and other operational improvements to prepare for the next level of testing, which will include direct measurement of carbon uptake in addition to organism mass measurements. (2) 15 biomass slurry samples are currently being analyzed with carbon dating techniques at Galbraith Labs, and statistical analysis of the results will determine if pre and post test carbon analysis is an acceptable means for carbon uptake estimation. (3) Pilot Scale: Quantitative organism growth testing is underway in the pilot scale bioreactor. Problems with uniformity of organism loading delayed the start of quantitative testing, and it remains as a continuing issue that has not been completely resolved. (4) The sustainability test was begun with approximately 30 gallons of algae and 2 Omnisil membranes. The initial mass determination procedure was completed, and the biomass growth over the course of the experiment has been preliminarily quantified.
Date: April 15, 2004
Creator: Kremer, Gregory; Bayless, David J.; Vis, Morgan; Prudich, Michael; Cooksey, Keith & Muhs, Jeff
Object Type: Report
System: The UNT Digital Library
Centrality and pseudorapidity dependence of charged hadron production at intermediate p{sub t} in Au+Au collisions at {radical}s{sub NN} = 130 GeV (open access)

Centrality and pseudorapidity dependence of charged hadron production at intermediate p{sub t} in Au+Au collisions at {radical}s{sub NN} = 130 GeV

We present STAR measurements of charged hadron production as a function of centrality in Au + Au collisions at {radical}s{sub NN} = 130 GeV. The measurements cover a phase space region of 0.2 < p{sub T} < 6.0 GeV/c in transverse momentum and 11 < {eta} < 1 in pseudorapidity. Inclusive transverse momentum distributions of charged hadrons in the pseudorapidity region 0.5 < |{eta}| < 1 are reported and compared to our previously published results for |{eta}| < 0.5. No significant difference is seen for inclusive p{sub T} distributions of charged hadrons in these two pseudorapidity bins. We measured dN/d{eta} distributions and truncated mean p{sub T} in a region of p{sub T} > P{sub T}{sup cut}, and studied the results in the framework of participant and binary scaling. No clear evidence is observed for participant scaling of charged hadron yield in the measured pT region. The relative importance of hard scattering process is investigated through binary scaling fraction of particle production.
Date: April 15, 2004
Creator: Adams, J.; Aggarwal, M.M.; Ahammed, Z.; Amonett, J.; Anderson, B. D.; Arkhipkin, D. et al.
Object Type: Article
System: The UNT Digital Library
X-ray absorption studies of the local structure and f-level occupancy in CeIr(1-x)Rh(x)In(5) (open access)

X-ray absorption studies of the local structure and f-level occupancy in CeIr(1-x)Rh(x)In(5)

The CeIr{sub 1-x}Rh{sub x}In{sub 5} series exhibits a range of interesting phenomena, including heavy-fermion superconductivity, non-Fermi liquid behavior, and concomitant antiferromagnetism (AF) and superconductivity (SC). In the low-Rh concentration range (0.1 {ge} x {ge} 0.5), specific heat measurements show a broad anomaly, suggestive of gross phase separation. We have performed x-ray absorption experiments at the Ce L{sub III}, Ir L{sub III}, and Rh K-edges as a function of Rh concentration and temperature. X-ray absorption near-edge structure (XANES) measurements indicate that cerium is close to trivalent in this system, with no measurable change with temperature from 20-300 K, consistent with a heavy-fermion material. Extended x-ray absorption fine structure (EXAFS) measurements as a function of temperature from all measured edges indicate the local crystal structure of all samples is well ordered, with no gross phase separation observed, even for samples with x = 0.125 and x = 0.25. These results therefore suggest that the anomalous specific heat behavior in the 0.1 {ge} x {ge} 0.5 range have some other explanation, and some possibilities are discussed.
Date: April 15, 2004
Creator: Daniel, M.; Han, S. W.; Booth, C. H.; Cornelius, A. L.; Pagliuso, P. G.; Sarrao, J. L. et al.
Object Type: Article
System: The UNT Digital Library
Genome-Wide Identification and 3D Modeling of Proteins involved in DNA Damage Recognition and Repair (Final Report) (open access)

Genome-Wide Identification and 3D Modeling of Proteins involved in DNA Damage Recognition and Repair (Final Report)

OAK-B135 DNA Damage Recognition and Repair (DDR and R) proteins play a critical role in cellular responses to low-dose radiation and are associated with cancer. the authors have performed a systematic, genome-wide computational analysis of genomic data for human genes involved in the DDR and R process. The significant achievements of this project include: (1) Construction of the computational pipeline for searching DDR and R genes, building and validation of 3D models of proteins involved in DDR and R; (2) Functional and structural annotation of the 3D models and generation of comprehensive lists of suggested knock-out mutations; (3) Important improvement of macromolecular docking technology and its application to predict the DNA-Protein complex conformation; (4) Development of a new algorithm for improved analysis of high-density oligonucleotide arrays for gene expression profiling; (5) Construction and maintenance of the DNA Damage Recognition and Repair Database; and (6) Producing 14 research papers (10 published and 4 in preparation).
Date: April 15, 2004
Creator: Ruben A. Abagyan, PhD
Object Type: Report
System: The UNT Digital Library
Tank 41H Saltstone Regulatory Analyses (open access)

Tank 41H Saltstone Regulatory Analyses

A Saltstone waste form was prepared in the Savannah River Technical Center (SRTC) shielded cells facility from a Tank 41H sample and Z-Area premix material. After a cure of at least 28 days, samples of the Saltstone were collected and characterized. Results showed that a Class 3 Industrial Solid Waste Landfill (ISWLF) would be required for disposal of this Tank 41H Saltstone waste form because of high leachate nitrate and alpha-emitting radionuclide concentrations.
Date: April 15, 2004
Creator: FERRARA, D
Object Type: Report
System: The UNT Digital Library
Pressure Indication of 3013 Inner Containers Using Digital Radiography (open access)

Pressure Indication of 3013 Inner Containers Using Digital Radiography

Plutonium bearing materials packaged for long term storage per the Department of Energy Standard 3013 (DOE-STD-3013) are required to be examined periodically in a non-destructive manner (i.e. without compromising the storage containers) for pressure buildup. Radiography is the preferred technology for performing the examinations. The concept is to measure and record the container lid position. As a can pressurizes the lid will deflect outward and thus provide an indication of the internal pressure. A radiograph generated within 30 days of creation of each storage container serves as the baseline from which future surveillance examinations will be compared. A problem with measuring the lid position was discovered during testing of a digital radiography system. The solution was to provide a distinct feature upon the lower surface of the container lid from which the digital radiography system could easily track the lid position.
Date: April 15, 2004
Creator: HENSEL, SJ
Object Type: Article
System: The UNT Digital Library
Modeling Technological Innovations and Diffusions Using the New RICE Model (open access)

Modeling Technological Innovations and Diffusions Using the New RICE Model

None
Date: April 15, 2004
Creator: Ynag, Z. & Nordhaus, W. D.
Object Type: Report
System: The UNT Digital Library
Elemental Composition of a Composite of Samples HTF-E-03-162 to 164 From Tank 51H to Evaluate Acceptability of the Sludge for Transfer to Tank 40H and Processing in the DWPF (open access)

Elemental Composition of a Composite of Samples HTF-E-03-162 to 164 From Tank 51H to Evaluate Acceptability of the Sludge for Transfer to Tank 40H and Processing in the DWPF

Three dip samples of suspended sludge slurry were obtained from Tank 51H and sent to the Savannah River Technology Center for analysis. The composite of these samples is intended as a confirmatory sample to evaluate the acceptability of the Tank 51H sludge slurry for transfer to Tank 40H and for eventual processing in the Defense Waste Processing Facility. This report presents results of analyses requested by the Defense Waste Processing Facility for this evaluation. These analyses included the measurement of the concentrations of twenty two elements in the sludge slurry and the determination of the weight percent calcined solids of the slurry.
Date: April 15, 2004
Creator: Bibler, N. E.
Object Type: Report
System: The UNT Digital Library
Rayleigh-Taylor and Richtmyer-Meshkov Instabilities and Mixing in Stratified Cylindrical Shells (open access)

Rayleigh-Taylor and Richtmyer-Meshkov Instabilities and Mixing in Stratified Cylindrical Shells

We study the linear stability of an arbitrary number N of cylindrical concentric shells undergoing a radial implosion or explosion.We derive the evolution equation for the perturbation {eta}{sub i} at interface i; it is coupled to the two adjacent interfaces via {eta}{sub i{+-}1}. For N=2, where there is only one interface, we verify Bell's conjecture as to the form of the evolution equation for arbitrary {rho}{sub 1} and {rho}{sub 2}, the fluid densities on either side of the interface. We obtain several analytic solutions for the N=2 and 3 cases. We discuss freeze-out, a phenomenon that can occur in all three geometries (planar, cylindrical, or spherical), and ''critical modes'' that are stable for any implosion or explosion history and occur only in cylindrical or spherical geometries. We present numerical simulations of possible gelatin-ring experiments illustrating perturbation feedthrough from one interface to another. We also develop a simple model for the evolution of turbulent mix in cylindrical geometry and define a geometrical factor G as the ratio h{sub cylindrical}/h{sub planar} between cylindrical and planar mixing layers. We find that G is a decreasing function of R/R{sub o}, implying that in our model h{sub cylindrical} evolves faster (slower) than h{sub planar} during …
Date: April 15, 2004
Creator: Mikaelian, K O
Object Type: Article
System: The UNT Digital Library
COMPARATIVE EVALUATION OF AMBIENT FINE PARTICULATE MATTER (PM2.5) DATA OBTAINED FROM URBAN AND RURAL MONITORING SITES ALONG THE UPPER OHIO RIVER VALLEY (open access)

COMPARATIVE EVALUATION OF AMBIENT FINE PARTICULATE MATTER (PM2.5) DATA OBTAINED FROM URBAN AND RURAL MONITORING SITES ALONG THE UPPER OHIO RIVER VALLEY

Advanced Technology Systems, Inc. (ATS), with Desert Research Institute (DRI) and Ohio University as subcontractors, was contracted by the NETL in September 1998 to manage the Upper Ohio River Valley Project (UORVP), which included the establishment and operation of four ambient air monitoring sites located in the Upper Ohio River Valley (UORV). Two urban and two rural monitoring sites were included in the UORVP. The four sites selected for the UOVRP were collocated at existing local and/or state air quality monitoring stations. The goal of the UORVP was to characterize the nature and composition of PM{sub 2.5} and its precursor gases. In the process, the objectives of the UORVP were to examine the ambient air concentrations of PM{sub 2.5} as compared with the promulgated PM{sub 2.5} standards, the geographical, seasonal and temporal variations of ambient air concentrations of PM{sub 2.5}, the primary chemical constituents of PM{sub 2.5}, and the correlations between ambient air concentrations of PM{sub 2.5} and its precursor gases, other gaseous pollutants and meteorological parameters. A variety of meteorological and pollutant measurement devices, including several different PM{sub 2.5} samplers that provided either real-time or integrated concentration data, were deployed at the monitoring sites. The frequency of integrated sampling …
Date: April 15, 2004
Creator: Khosah, Robinson P.; Shimshock, John P. & Penland, Jerry L.
Object Type: Report
System: The UNT Digital Library
Evaluation of Roof Bolting Requirements Based on In-Mine Bolter Drilling Progress Report (open access)

Evaluation of Roof Bolting Requirements Based on In-Mine Bolter Drilling Progress Report

A one-year non-cost extension has been granted for this project. In this quarter, the field, theoretical and programming works have been performed toward achieving the research goals set in the proposal. The main accomplishments in this quarter included: (1) laboratory tests have been conducted, (2) with the added trendline analysis method, the accuracy of the data interpretation methodology will be improved and the interfaces and voids can be more reliably detected, (3) method to use torque to thrust ratio as indicator of rock relative hardness has also been explored, and (3) about 80% of the development work for the roof geology mapping program, MRGIS, has completed and a special version of the program is in the field testing stage.
Date: April 15, 2004
Creator: Peng, Syd S.
Object Type: Report
System: The UNT Digital Library
Radioactive Material Transportation Considerations with Respect to DOE 3013 Storage Containers (open access)

Radioactive Material Transportation Considerations with Respect to DOE 3013 Storage Containers

This paper evaluates sealed hardware that meets the requirements of DOE-STD-3013, ''Criteria for Preparing and packaging Plutonium Metals and Oxides for Long-Term Storage'' with respect to radioactive material (Type B quantity) transportation requirements. The Standard provides criteria for packaging of the plutonium materials for storage periods of at least 50 years. The standard requires the hardware to maintain integrity under both normal storage conditions and under anticipated handling conditions. To accomplish this, the standard requires that the plutonium be loaded in a minimum of two nested stainless steel sealed containers that are both tested for leak-tightness per ANSI N14.5. As such the 3013 hardware is robust. While the 3013 STD may provide appropriate storage criteria, it is not intended to provide criteria for transporting the material under the requirements of the Department of Transportation (DOT). In this evaluation, it is assumed that the activity of plutonium exceeds A1 and/or A2 curies as defined in DOT 49 CFR 173.431 and therefore must be shipped as a Type B package meeting the Nuclear Regulatory Commission (NRC) requirements of 10 CFR 71. The evaluation considers Type B shipment of plutonium in the 3013 hardware within a certified package for such contents.
Date: April 15, 2004
Creator: HENSEL, SJ
Object Type: Article
System: The UNT Digital Library