To develop the passively-cooled space reactor concept using the capillary-induced lithium flow, since molten lithium possesses a very favorable surface tension characteristic. In space where the gravitational field is minimal, the gravity-assisted natural convection cooling is not effective nor an option for reactor heat removal, the capillary induced cooling becomes an attractive means of providing reactor cooling.

This report provides an overview of the law and and proposals to alter the mileage deduction or reimbursement allowed for charitable purposes

This report discusses S. 2191 (the Lieberman-Warner Climate Security Act of 2008), which was reintroduced as S. 3036 with a deficit reduction amendment. In particular, it provides a comparison of five key differences between the bill and the proposed Boxer Amendment.

This report discusses S. 2191 (the Lieberman-Warner CLimate Security Act of 2008), which was reintroduced as S. 3036 with a deficit reduction amendment. In particular, it provides a comparison of five key differences between the bill and the proposed Boxer Amendment.

This report discusses concerns over climate change, often termed “global warming,” which have emerged both in the United States and internationally as major policy issues. The report discusses different treaties that address climate change, and other international meetings.

Fiscal year 2008 studies in electrolyzer component development have focused on the characterization of membrane electrode assemblies (MEA) after performance tests in the single cell electrolyzer, evaluation of electrocatalysts and membranes using a small scale electrolyzer and evaluating the contribution of individual cell components to the overall electrochemical performance. Scanning electron microscopic (SEM) studies of samples taken from MEAs testing in the SRNL single cell electrolyzer test station indicates a sulfur-rich layer forms between the cathode catalyst layer and the membrane. Based on a review of operating conditions for each of the MEAs evaluated, we conclude that the formation of the layer results from the reduction of sulfur dioxide as it passes through the MEA and reaches the catalyst layer at the cathode-membrane interface. Formation of the sulfur rich layer results in partial delamination of the cathode catalyst layer leading to diminished performance. Furthermore we believe that operating the electrolyzer at elevated pressure significantly increases the rate of formation due to increased adsorption of hydrogen on the internal catalyst surface. Thus, identification of a membrane that exhibits much lower transport of sulfur dioxide is needed to reduce the quantity of sulfur dioxide that reaches the cathode catalyst and is reduced …

This report analyzes the war funding for the Defense Department and tracks funding for USAID and VA Medical funding.

The purpose of this course is to provide a comprehensive introduction to the physics of beams with intense space charge. This course is suitable for graduate students and researchers interested in accelerator systems that require sufficient high intensity where mutual particle interactions in the beam can no longer be neglected. This course is intended to give the student a broad overview of the dynamics of beams with strong space charge. The emphasis is on theoretical and analytical methods of describing the acceleration and transport of beams. Some aspects of numerical and experimental methods will also be covered. Students will become familiar with standard methods employed to understand the transverse and longitudinal evolution of beams with strong space charge. The material covered will provide a foundation to design practical architectures. In this course, we will introduce you to the physics of intense charged particle beams, focusing on the role of space charge. The topics include: particle equations of motion, the paraxial ray equation, and the Vlasov equation; 4-D and 2-D equilibrium distribution functions (such as the Kapchinskij-Vladimirskij, thermal equilibrium, and Neuffer distributions), reduced moment and envelope equation formulations of beam evolution; transport limits and focusing methods; the concept of emittance and …

This report discusses how the total debt of the federal government can increase, a historical overview of debt limits, and how the current economic slowdown has led to higher deficits and thereby a series of debt limit increases, as well as legislation related to these increases.

Correspondence issued by the Government Accountability Office with an abstract that begins "This letter formally transmits the briefing in response to section 957(a) of the National Defense Authorization Act for Fiscal Year 2008 and the accompanying conference report. The act required the Comptroller General to conduct an assessment of the most recent reorganization of the Office of the Under Secretary of Defense for Policy."

A letter report issued by the Government Accountability Office with an abstract that begins "The Department of Energy (DOE) has long suffered from contract and management oversight weaknesses. Since 1990 DOE contract management has been on GAO's list of programs at high risk for fraud, waste, abuse, and mismanagement. In 2003 DOE's Office of Science (Science) unveiled its 20-year plan to acquire and upgrade potentially costly research facilities. In light of DOE's history and the potential cost of this ambitious plan, GAO was asked to examine Science's project management performance. GAO determined (1) the extent to which Science has managed its projects within cost and schedule targets, (2) the factors affecting project management performance, and (3) challenges that may affect Science's future performance. GAO reviewed DOE and Science's project management guidance and 42 selected Science projects and also interviewed DOE and laboratory officials."

The Waste Acceptance Product Specifications (WAPS)1 1.2 require that 'The Producer shall report the inventory of radionuclides (in Curies) that have half-lives longer than 10 years and that are, or will be, present in concentrations greater than 0.05 percent of the total inventory for each waste type indexed to the years 2015 and 3115'. As part of the strategy to meet WAPS 1.2, the Defense Waste Processing Facility (DWPF) will report for each waste type, all radionuclides (with half-lives greater than 10 years) that have concentrations greater than 0.01 percent of the total inventory from time of production through the 1100 year period from 2015 through 3115. The initial listing of radionuclides to be included is based on the design-basis glass as identified in the Waste Form Compliance Plan (WCP)2 and Waste Form Qualification Report (WQR)3. However, it is required that this list be expanded if other radionuclides with half-lives greater than 10 years are identified that may meet the greater than 0.01% criterion for Curie content. Specification 1.6 of the WAPS, International Atomic Energy Agency (IAEA) Safeguards Reporting for High Level Waste (HLW), requires that the ratio by weights of the following uranium and plutonium isotopes be reported: U-233, …

We have successfully incorporated high surface area particles of titanate ion exchange materials (monosodium titanate and crystalline silicotitanate) with acceptable particle size distribution into porous and inert support membrane fibrils consisting of polytetrafluoroethylene (Teflon{reg_sign}), polyethylene and cellulose materials. The resulting membrane sheets, under laboratory conditions, were used to evaluate the removal of surrogate radioactive materials for cesium-137 and strontium-90 from high caustic nuclear waste simulants. These membrane supports met the nominal requirement for nonchemical interaction with the embedded ion exchange materials and were porous enough to allow sufficient liquid flow. Some of this 47-mm size stamped out prototype titanium impregnated ion exchange membrane discs was found to remove more than 96% of dissolved cesium-133 and strontium-88 from a caustic nuclear waste salt simulants. Since in traditional ion exchange based column technology monosodium titanate (MST) is known to have great affinity for the sorbing of other actinides like plutonium, neptunium and even uranium, we expect that the MST-based membranes developed here, although not directly evaluated for uptake of these three actinides because of costs associated with working with actinides which do not have 'true' experimental surrogates, would also show significant affinity for these actinides in aqueous media. It was also observed …

High temperature superconducting (HTS) motors offer the potential for dramatic volume and loss reduction compared to conventional, high horspower, industrial motors. This report is the final report on the results of eight research tasks that address some of the issues related to HTS motor development that affect motor efficiency, cost, and reliability.

A letter report issued by the Government Accountability Office with an abstract that begins "The John Warner National Defense Authorization Act for Fiscal Year 2007 included provisions regarding mental health concerns and traumatic brain injury (TBI). GAO addressed these issues as required by the Act. In this report GAO discusses (1) DOD efforts to implement pre-deployment mental health screening; (2) how post-deployment mental health referrals are tracked; and (3) screening requirements for mild TBI. GAO selected the Army, Marine Corps, and Army National Guard for the review. GAO reviewed documents and interviewed DOD officials and conducted site visits to three military installations where the pre-deployment health assessment was being conducted."

A conceptual design is presented for a Hybrid Sulfur process for the production of hydrogen using a high-temperature nuclear heat source to split water. The process combines proton exchange membrane-based SO{sub 2}-depolarized electrolyzer technology being developed at Savannah River National Laboratory with silicon carbide bayonet decomposition reactor technology being developed at Sandia National Laboratories. Both are part of the US DOE Nuclear Hydrogen Initiative. The flowsheet otherwise uses only proven chemical process components. Electrolyzer product is concentrated from 50 wt% sulfuric acid to 75 wt% via recuperative vacuum distillation. Pinch analysis is used to predict the high-temperature heat requirement for sulfuric acid decomposition. An Aspen Plus{trademark} model of the flowsheet indicates 340.3 kJ high-temperature heat, 75.5 kJ low-temperature heat, 1.31 kJ low-pressure steam, and 120.9 kJ electric power are consumed per mole of H{sub 2} product, giving an LHV efficiency of 35.3% (41.7% HHV efficiency) if electric power is available at a conversion efficiency of 45%.

A letter report issued by the Government Accountability Office with an abstract that begins "The Federal Deposit Insurance Corporation (FDIC) has a demanding responsibility enforcing banking laws, regulating financial institutions, and protecting depositors. Effective information security controls are essential to ensure that FDIC systems and information are adequately protected from inadvertent misuse, fraudulent, or improper disclosure. As part of its audit of FDIC's 2007 financial statements, GAO assessed (1) the progress FDIC has made in mitigating previously reported information security weaknesses and (2) the effectiveness of FDIC's controls in protecting the confidentiality, integrity, and availability of its financial systems and information. To do this, GAO examined security policies, procedures, reports, and other documents; observed controls over key financial applications; and interviewed key FDIC personnel."

This report explores the various issues currently facing Congress in regards to intelligence and counterterrorism activities, including the Intelligence Reform and Terrorism Prevention Act (P.L. 108-458), signed in December 2004; the position of Director of National Intelligence (DNI), which that act created; the importance of collaborative efforts between various intelligence agencies to successfully carry out counterterrorism measures; and other pieces of legislation relevant to such matters.

Other written product issued by the Government Accountability Office with an abstract that begins "An international peer review team with representatives from the supreme audit institutions of Canada, Australia, the Netherlands, and the United Kingdom reviewed the quality assurance system that GAO has established for managing its performance audit practice. GAO's quality assurance system encompasses its organizational structure and the policies and procedures established to provide it with reasonable assurance that it complies with Government Auditing Standards. GAO is responsible for the design of its quality assurance system and compliance with it, including the quality of its products. Our responsibility is to express an opinion on whether the system is suitably designed and operating effectively to meet its objective. The criteria the peer review team used to assess GAO's quality assurance system were drawn from GAO legislative authorities, Government Auditing Standards, 2003, and early adopted portions of the 2007 Revision, and the GAO performance audit manual. The peer review team conducted the review in accordance with the peer review standards in Government Auditing Standards, 2003, and early adopted portions of the 2007 Revision. The peer review team examined GAO's documented policies and procedures relative to applicable professional standards, reviewed documentation …

As part of an effort to develop cost-effective ferritic stainless steel-based interconnects for solid oxide fuel cell (SOFC) stacks, both bare and spinel coated AISI 441 were studied in terms of metallurgical characteristics, oxidation behavior, and electrical performance. The conventional melt metallurgy used for the bulk alloy fabrication leads to significant processing cost reduction and the alloy chemistry with the presence of minor alloying additions of Nb and Ti facilitate the strengthening by precipitation and formation of Laves phase both inside grains and along grain boundaries during exposure in the intermediate SOFC operating temperature range. The Laves phase formed along the grain boundaries also ties up Si and prevents the formation of an insulating silica layer at the scale/metal interface during prolonged exposure. The substantial increase in ASR during long term oxidation due to oxide scale growth suggested the need for a conductive protection layer, which could also minimize Cr evaporation. In particular, Mn1.5Co1.5O4 based surface coatings on planar coupons drastically improved the electrical performance of the 441, yielding stable ASR values at 800ºC for over 5,000 hours. Ce-modified spinel coatings retained the advantages of the unmodified spinel coatings, and also appeared to alter the scale growth behavior beneath the …

The National Security Preparedness Project (NSPP), is to be sustained by various programs, including technology demonstration and evaluation (DEMVAL). This project assists companies in developing technologies under the National Security Technology Incubator program (NSTI) through demonstration and validation of technologies applicable to national security created by incubators and other sources. The NSPP also will support the creation of an integrated demonstration and validation environment. This report documents the DEMVAL marketing and visibility plan, which will focus on collecting information about, and expanding the visibility of, DEMVAL assets serving businesses with national security technology applications in southern New Mexico.

A letter report issued by the Government Accountability Office with an abstract that begins "The financing of the $299 billion Medicaid program is shared between the federal government and states. States pay qualified providers for covered Medicaid services and receive federal matching funds from the Department of Health & Human Services' (HHS) Centers for Medicare & Medicaid Services (CMS) for expenditures authorized in their state Medicaid plans. In addition to these standard Medicaid payments, most states make supplemental payments to certain providers, which are also matched by federal funds. GAO was asked for information about Medicaid supplemental payments. GAO examined (1) what information states report about supplemental payments on Medicaid expenditure reports and (2) in selected states, how much was distributed as supplemental payments, to what types of providers, and for what purposes. GAO analyzed CMS's Medicaid expenditure reports and surveyed five states that make large supplemental payments."

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A letter report issued by the Government Accountability Office with an abstract that begins "Military operations in support of the Global War on Terrorism, particularly those in Iraq and Afghanistan, have challenged the Department of Defense's (DOD) ability to provide needed ground forces. Section 354 of the Fiscal Year 2008 National Defense Authorization Act directed GAO to report on a number of military readiness issues. In this report, GAO addresses (1) the extent to which DOD's use of nonstandard forces to meet ground force requirements has impacted the force and (2) the extent to which DOD has faced challenges in managing the training and use of these forces, and taken steps to address any challenges. To address these objectives, GAO analyzed DOD policies, guidance, and data and interviewed department, joint, combatant command, and service officials as well as trainers and over 300 deploying, deployed, and redeploying servicemembers."