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."

A letter report issued by the Government Accountability Office with an abstract that begins "Sharing information with nonfederal officials is an important tool in federal efforts to secure the nation's ports against a potential terrorist attack. The Coast Guard has lead responsibility in coordinating maritime information sharing efforts. The Coast Guard has established area maritime security committees--forums that involve federal and nonfederal officials who identify and address risks in a port. The Coast Guard and other agencies have sought to further enhance information sharing and port security operations by establishing interagency operational centers--command centers that tie together the efforts of federal and nonfederal participants. GAO was asked to review the efforts to see what impact the committees and interagency operational centers have had on improving information sharing and to identify any barriers that have hindered information sharing."

A letter report issued by the Government Accountability Office with an abstract that begins "For the President's Budget for Fiscal Year 2005, the Office of Management and Budget (OMB) stated that of the nearly 1,200 major information technology (IT) projects in the budget, it had placed approximately half--621 projects, representing about $22 billion--on a Management Watch List, composed of mission-critical projects with identified weaknesses. GAO was asked to describe and assess OMB's processes for (1) placing projects on its Management Watch List and (2) following up on corrective actions established for projects on the list."

A letter report issued by the Government Accountability Office with an abstract that begins "The Internal Revenue Service (IRS) relies extensively on computerized systems to support its financial and mission-related operations. In addition, IRS provides computer processing support to the Financial Crimes Enforcement Network (FinCEN)--another Treasury bureau. As part of IRS's fiscal year 2004 financial statements, GAO assessed (1) the status of IRS's actions to correct or mitigate previously reported weaknesses at one of its critical data processing facilities and (2) the effectiveness of IRS's information security controls in protecting the confidentiality, integrity, and availability of key financial and tax processing systems."

A letter report issued by the Government Accountability Office with an abstract that begins "An accurate decennial census relies on finding and counting people--only once--in the right place and collecting complete and correct information. GAO reviewed the Department of Commerce's U.S. Census Bureau's (Bureau) plans to (1) improve the census's accuracy--or coverage--with its coverage follow-up operation, (2) assess the accuracy of the census through its census coverage measurement program, and (3) evaluate these efforts after 2010. GAO reviewed documentation and interviewed Bureau officials about the Bureau's coverage follow-up and measurement plans. GAO compared plans for measuring coverage in 2000 and 2010 and interviewed 15 experts about changes to the plans."

A letter report issued by the Government Accountability Office with an abstract that begins "In 2004, the Forest Service reported to the Congress that it had a backlog of nearly 900,000 acres of land needing reforestation--the planting and natural regeneration of trees. Reforestation and subsequent timber stand improvement treatments, such as thinning trees and removing competing vegetation, are critical to restoring and improving the health of our national forests after timber harvests or natural disturbances such as wildland fires. GAO was asked to (1) examine the reported trends in federal lands needing reforestation and timber stand improvement, (2) identify the factors that have contributed to these trends, and (3) describe any potential effects of these trends that federal land managers have identified."

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."

A letter report issued by the General Accounting Office with an abstract that begins "During the 1990-1991 Persian Gulf War, health problems prevented the deployment of a significant number of Army reservists. To help correct this problem the Congress passed legislation that required reservists to undergo periodic physical and dental examinations. The National Defense Authorization Act for 2002 directed GAO to review the value and advisability of providing examinations. GAO also examined whether the Army is collecting and maintaining information on reservist health. GAO obtained expert opinion on the value of periodic examinations and visited seven Army reserve units to obtain information on the number of examinations that have been conducted."

A letter report issued by the General Accounting Office with an abstract that begins "This report examines the progress the District of Columbia has made with its fiscal year 2001 performance accountability report and highlights continuing challenges facing our nation's capital. The District must submit a performance accountability plan with goals for the coming fiscal year and, at the end of the fiscal year, a performance accountability report on the extent to which it achieved these goals. GAO found that the District's Performance Accountability Report for Fiscal Year 2001 provided a more complete picture of its performance and made progress in complying with statutory reporting requirements by using a consistent set of goals. This allowed the District to measure and report progress toward the goals in its 2001 performance plan. Specifically, it reported information on the level of performance achieved, the titles of managers and their supervisors responsible for each goal, and described the status of certain court orders. The District has made progress over the last three years in its performance accountability reports and established positive direction for enhancements in court orders, its fiscal year 2003 performance based budgeting pilots, and performance goals and measures."

A letter report issued by the General Accounting Office with an abstract that begins "Terrorist and criminal watch list systems--sometimes referred to as watchout, lookout, target, or tip-off systems--are important tools in controlling and protecting our nation's borders. The events of September 11, 2001, and other incidents since then, have highlighted the need to share these watch lists. In light of the importance of border security, GAO was asked to identify federal databases and systems that contain watch lists, the agencies that maintain and use them in protecting our nation's borders, the kind of data they contain, whether federal agencies are sharing information from these lists with each other and with state and local governments and private organizations, the structural characteristics of those lists that are automated, and whether opportunities exist to consolidate these watch lists."

A letter report issued by the General Accounting Office with an abstract that begins "Potentially dangerous sealed sources containing greater-than-Class-C radioactive material pose a threat to national security because terrorists could use them to make "dirty bombs." Public Law 99-240 requires the Department of Energy (DOE) provide a facility for disposing of unwanted sources. Because DOE has no disposal facility for these sources, its Off-Site Source Recovery Project is recovering and temporarily storing them at Los Alamos, New Mexico. GAO was asked to determine (1) the number of unwanted sealed sources that DOE plans to recover through 2010 and the estimated cost, (2) the status of recovery efforts and any problems that DOE may face, and (3) the status of DOE's efforts to provide a disposal facility for these sealed sources"

A letter report issued by the Government Accountability Office with an abstract that begins "In recent years, several challenges have emerged concerning future recreational opportunities in the nation's capital. These challenges include ensuring that an adequate supply of parkland and open space is available to meet the needs of an increasing resident population and the estimated 20 million annual visitors to the District of Columbia's cultural institutions, historic sites, parks, and open spaces. GAO identified (1) the universe of federal property in the District of Columbia (the District) managed by the National Park Service (NPS); (2) what recreational facilities, including those that are sports related, exist on these properties; (3) the condition of the properties with sports facilities and the sports facilities thereon; (4) new or expanded recreational uses discussed in NPS general management plans; and (5) the methods that could be used to convey management responsibility for NPS-managed properties to the District government. Commenting on the draft report, Interior stated that NPS is addressing properties in the greatest need of repair or rehabilitation in priority order. It also said that it did not have authority to enter into a lease that allows the erection of a structure on its …

The goal of this program was to increase the high-temperature strength of the H-Series of cast austenitic stainless steels by 50% and upper use temperature by 86 to 140 F (30 to 60 C). Meeting this goal is expected to result in energy savings of 38 trillion Btu/year by 2020 and energy cost savings of $185 million/year. The higher strength H-Series of cast stainless steels (HK and HP type) have applications for the production of ethylene in the chemical industry, for radiant burner tubes and transfer rolls for secondary processing of steel in the steel industry, and for many applications in the heat-treating industry. The project was led by Duraloy Technologies, Inc. with research participation by the Oak Ridge National Laboratory (ORNL) and industrial participation by a diverse group of companies. Energy Industries of Ohio (EIO) was also a partner in this project. Each team partner had well-defined roles. Duraloy Technologies led the team by identifying the base alloys that were to be improved from this research. Duraloy Technologies also provided an extensive creep data base on current alloys, provided creep-tested specimens of certain commercial alloys, and carried out centrifugal casting and component fabrication of newly designed alloys. Nucor Steel …

In this report, we develop an atom layer stacking model to describe systematically the crystal structures of complex materials. To illustrate the concepts, we consider a sequence of oxide compounds in which the metal cations progress in oxidation state from monovalent (M{sup 1+}) to tetravalent (M{sup 4+}). We use concepts relating to geometric subdivisions of a triangular atom net to describe the layered atom patterns in these compounds (concepts originally proposed by Shuichi Iida). We demonstrate that as a function of increasing oxidation state (from M{sup 1+} to M{sup 4+}), the layer stacking motifs used to generate each successive structure (specifically, motifs along a 3 symmetry axis), progress through the following sequence: MMO, MO, M{sub r}O, MO{sub r/s}O{sub u/v}, MOO (where M and O represent fully dense triangular atom nets and r/s and u/v are fractions used to describe partially filled triangular atom nets). We also develop complete crystallographic descriptions for the compounds in our oxidation sequence using trigonal space group R{bar 3}.

The U.S. Department of Energy (DOE) and American automotive manufacturers General Motors, Ford, and DaimlerChrysler began a five-year, cost-shared partnership in 1993. Currently, hybrid electric vehicle (HEV) research and development is conducted by DOE through its FreedomCAR and Vehicle Technologies (FCVT) program. The mission of the FCVT program is to develop more energy efficient and environmentally friendly highway transportation technologies. Program activities include research, development, demonstration, testing, technology validation, and technology transfer. These activities are aimed at developing technologies that can be domestically produced in a clean and cost-competitive manner. Under the FCVT program, support is provided through a three-phase approach [1] which is intended to: • Identify overall propulsion and vehicle-related needs by analyzing programmatic goals and reviewing industry’s recommendations and requirements, then develop the appropriate technical targets for systems, subsystems, and component research and development activities; • Develop and validate individual subsystems and components, including electric motors, emission control devices, battery systems, power electronics, accessories, and devices to reduce parasitic losses; and • Determine how well the components and subassemblies work together in a vehicle environment or as a complete propulsion system and whether the efficiency and performance targets at the vehicle level have been achieved. The research …

Nijmegen breakage syndrome (NBS) is a rare autosomal recessive chromosome instability syndrome characterized by microcephaly, growth retardation, immunodeficiency, and cancer predisposition, with cellular features similar to that of ataxia telangiectasia (AT). NBS results from mutations in the mammalian gene Nbs1 that codes for a 95-kDa protein called nibrin, NBS1, or p95. To establish an animal model for NBS, we attempted to generate NBS1 knockout mice. However, NBS1 gene knockouts were lethal at an early embryonic stage. NBS1 homozygous(-/-) blastocyst cells cultured in vitro showed retarded growth and subsequently underwent growth arrest within 5 days of culture. Apoptosis, assayed by TUNEL staining, was observed in NBSI homozygous(-/-) blastocyst cells cultured for four days. NBSI heterozygous(+/-) mice were normal, and exhibited no specific phenotype for at least one year. However, fibroblast cells from NBSI heterozygous(+/-) mice displayed an enhanced frequency of spontaneous transformation to anchorage-independent growth as compared to NBS1 wild-type(+/+) cells. Furthermore, heterozygous(+/-) mice exhibited a high incidence of hepatocellular carcinoma after one year compared to wild-type mice, even though no significant differences in the incidence of other tumors such as lung adenocarcinoma and lymphoma were observed. Taken together, these results strongly suggest that NBS1 heterozygosity and reduced NBSI expression induces …

The primary goal of this project is to increase the fatigue life of a welded-joint by 10 times and to reduce energy use by 25% through product performance and productivity improvements using an integrated modeling approach. The fatigue strength of a welded-joint is currently the bottleneck to design high performance and lightweight welded structures using advanced materials such as high strength steels. In order to achieve high fatigue strength in a welded-joint it is necessary to manage the weld bead shape for lower stress concentration, produce preferable residual stress distribution, and obtain the desired microstructure for improved material toughness and strength. This is a systems challenge that requires the optimization of the welding process, the welding consumable, the base material, as well as the structure design. The concept of virtual welded-joint design has been proposed and established in this project. The goal of virtual welded-joint design is to develop a thorough procedure to predict the relationship of welding process, microstructure, property, residual stress, and the ultimate weld fatigue strength by a systematic modeling approach. The systematic approach combines five sub-models: weld thermal-fluid model, weld microstructure model, weld material property model, weld residual stress model, and weld fatigue model. The systematic …

The Department of Energy (DOE), National Energy Technology Center (NETL), has initiated a strategic plan for the development of advanced technologies needed to design and build fossil fuel plants with very high efficiency and environmental performance. These plants, referred to as 'Vision 21' and FutureGen programs by DOE, will produce electricity, chemicals, fuels, or a combination of these products, and possibly secondary products such as steam/heat for industrial use. MA956 is a prime candidate material being considered for a high temperature heat exchanger in the 'Vision 21' and FutureGen programs. This material is an oxide dispersion strengthened (ODS) alloy; however, there are some gaps in the data required to commit to the use of these alloys in a full-size plant. To fill the technology gaps for commercial production and use of the material for 'Advanced Power Generation Systems' this project has performed development activity to significant increase in circumferential strength of MA956 as compared to currently available material, investigated bonding technologies for bonding tube-to-tube joints through joining development, and performed tensile, creep and fire-side corrosion tests to validate the use and fabrication processes of MA956 to heat exchanger tubing applications. Development activities within this projected has demonstrated increased circumferential strength …

The recent Nevada Earthquake (M=6) produced an extraordinary set of crustal guided waves. In this study, we examine the three-component data at all the USArray stations in terms of how well existing models perform in predicting the various phases, Rayleigh waves, Love waves, and Pnl waves. To establish the source parameters, we applied the Cut and Paste Code up to distance of 5° for an average local crustal model which produced a normal mechanism (strike=35°,dip=41°,rake=-85°) at a depth of 9 km and Mw=5.9. Assuming this mechanism, we generated synthetics at all distances for a number of 1D and 3D models. The Pnl observations fit the synthetics for the simple models well both in timing (VPn=7.9km/s) and waveform fits out to a distance of about 5°. Beyond this distance a great deal of complexity can be seen to the northwest apparently caused by shallow subducted slab material. These paths require considerable crustal thinning and higher P-velocities. Small delays and advances outline the various tectonic province to the south, Colorado Plateau, etc. with velocities compatible with that reported on by Song et al.(1996). Five-second Rayleigh waves (Airy Phase) can be observed throughout the whole array and show a great deal of variation …

Volatile organic compound (VOC) data that had already been collected using EPA method TO-15 at four different sites under regulatory scrutiny (a school, strip mall, apartment complex, and business/residential neighborhood) were evaluated to determine whether the source of indoor air benzene was outdoor air or vapor intrusion from contaminated soil. Both the use of tracer organics characteristic of different sources and principal component statistical analysis demonstrated that the source of indoor air at virtually all indoor sampling locations was a result of outdoor air, and not contaminated soil in and near the indoor air-sampling locations. These results show that proposed remediation activities to remove benzene-contaminated soil are highly unlikely to reduce indoor air benzene concentrations. A manuscript describing these results is presently being prepared for submission to a peer-reviewed journal.

Computational Fluid Dynamics (CFD) models of Tank 50 with different numbers of pumps and operational modes, including pump rotation, have been developed to estimate flow patterns and the resultant sludge mixing. Major solid obstructions including the tank wall, the pump housing, the pump columns, and the 82-in central support column were included in the model. Transient analyses with a two-equation turbulence model were performed with FLUENT{trademark}, a commercial CFD code. All analyses were based on three-dimensional results. Recommended operational guidance was developed assuming that local fluid velocity and characteristic measures of local turbulence could be used as indicators of sludge suspension and spatial mixing. The calculation results show that three pumps, the maximum number of pumps studied, will give acceptable homogeneous mixing in about 6 minutes in terms of flow patterns and turbulent energy dissipation. These qualitative results are consistent with literature results. Sensitivity calculations have also been performed to assess the impact of different operating modes on sludge suspension and mixing. Two-pump operation provides a marginal level of sludge suspension and turbulent mixing, while one pump does not provide acceptable flow patterns and turbulent eddies for good mixing.

The 100-F-50 waste site, part of the 100-FR-2 Operable Unit, is a steel stormwater runoff culvert that runs between two railroad grades in the south-central portion of the 100-F Area. The culvert exiting the west side of the railroad grade is mostly encased in concrete and surrounded by a concrete stormwater collection depression partially filled with soil and vegetation. The drain pipe exiting the east side of the railroad grade embankment is partially filled with soil and rocks. The 100-F-50 stormwater diversion culvert confirmatory sampling results support a reclassification of this site to no action. The current site conditions achieve the remedial action objectives and corresponding remedial action goals established in the Remaining Sites ROD. The results of confirmatory sampling show that residual contaminant concentrations do not preclude any future uses and allow for unrestricted use of shallow zone soils. The results also demonstrate that residual contaminant concentrations are protective of groundwater and the Columbia River.

This report reviews the history of pipeline regulation, including the limited history of interstate CO2 pipeline regulation, and examines the regulatory missions of FERC, the STB, and other agencies. The report discusses possible responses to perceived jurisdictional uncertainties under existing law as well as potential legislative steps intended to address any potential regulatory “gap” in interstate CO2 pipeline jurisdiction.

This report discusses laws related to the protection of marine mammals when using mid-frequency active sonar including the Marine Mammal Protection Act (MMPA), the Endangered Species Act (ESA), the National Environmental Policy Act (NEPA), and the Coastal Zone Management Act (CZMA). The report discusses each of the laws generally, and then reviews the litigation surrounding the Navy's compliance with these laws in the context of using the sonar for training purposes off California's coast.