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Transpired Air Collectors - Ventilation Preheating

Description: Many commercial and industrial buildings have high ventilation rates. Although all that fresh air is great for indoor air quality, heating it can be very expensive. This short (2-page) fact sheet describes a technology available to use solar energy to preheat ventilation air and dramatically reduce utility bills.
Date: June 22, 2006
Creator: Christensen, C.
Partner: UNT Libraries Government Documents Department

New Processing and Characterization Approaches for Achieving Full Performance of High Temperature Superconducting Tapes of (Bi,Pb)2Sr2Ca2Cu3Ox

Description: The thrust of this research was to identify and understand current limiting mechanisms (CLMs) that limit the current carrying capacity of (Bi,Pb)2Sr2Ca2Cu3Ox (2223) in Ag-sheathed wire. Our program concentrated on developing new methods to identify CLMs at the micrometer scale and new processing techniques to eliminate CLMs. All of the DOE Superconductivity Partnership Initiative (SPI) programs are using 2223 wire, so increasing the critical current density (Jc) in the wire can improve the technical performance of the demonstration projects, and at the same time it can decrease the cost of the wire. The important cost metric for superconducting wire is $/kAm, so increasing Jc, which is in the denominator, decreases the wire cost. The obvious CLMs were micrometer size obstacles in the 2223 ceramic that block current flow, including: misaligned grains, cracks, pores, and nonsuperconducting phases. Pores and cracks - regions where there is no superconductor or the grains are not physically connected to one another ? cannot carry supercurrent, so they were the first CLMs we tried to eliminate with improved processing. Prior to the contract, we had started investigating overpressure (OP) processing with Williams at ORNL to heal cracks and remove pores. OP processing, which is a variant of hot isostatic pressing (HIP), uses an Ar/O2 gas mixture to apply a high pressure (up to 200 atm) to compress the sample and to set the oxygen partial pressure (pO2) to form 2223. Williams had a static pressure system we used to demonstrate that OP processing healed cracks and densified the wire, but the static system limited the processing parameters we could investigate. We proposed building a new gas-flow OP system to expand the experimental capabilities and to investigate new processing routes using the gas-flow OP system. Using the gas-flow OP system, we established new world records in 2003 ...
Date: March 22, 2006
Creator: Hellstrom, E.E. & Larbalestier, D.C.
Partner: UNT Libraries Government Documents Department

Digital Television: An Overview

Description: Digital television (DTV) is a new television service representing the most significant development in television technology since the advent of color television in the 1950s. DTV can provide sharper pictures, a wider screen, CD-quality sound, better color rendition, and other new services currently being developed. A successful deployment of DTV requires: the development by content providers of compelling digital programming; the delivery of digital signals to consumers by broadcast television stations, as well as cable and satellite television systems; and the widespread purchase and adoption by consumers of digital television equipment. A key issue in the Congressional debate over the digital transition has been addressing the millions of American over-the-air households whose existing analog televisions will require converter boxes in order to receive digital signals when the analog signal is turned off.
Date: August 22, 2006
Creator: Kruger, Lennard G.
Partner: UNT Libraries Government Documents Department

The Federal Networking and Information Technology Research and Development Program: Funding Issues and Activities

Description: This report discusses the High-Performance Computing and Communications Program Act of 1991 (P.L. 102-194), which was passed to enhance the effectiveness of the various high-performance computing programs. The HPCC Program has evolved over time and is now called the Networking and Information Technology Research and Development (NITRD) Program, to better reflect its expanded mission.
Date: February 22, 2006
Creator: Figliola, Patricia Moloney
Partner: UNT Libraries Government Documents Department

Homeland Security Research and Development Funding, Organization, and Oversight

Description: The Homeland Security Act consolidated some research and development (R&D) in the Department of Homeland Security (DHS), whose FY2007 R&D budget (excluding management/procurement) was requested at $1.1 billion, about 10% less than FY2006, and represents the first decline in DHS's R&D funding since the agency started funding R&D in 2002. DHS is mandated to coordinate all federal agency homeland security R&D, which was requested at about $5.1 billion. This report lists related legislation and policy issues relating to DHS's R&D programs.
Date: August 22, 2006
Creator: Knezo, Genevieve J.
Partner: UNT Libraries Government Documents Department

Open Access Publishing and Citatation Archives: Background and Controversy

Description: This report begins with an inventory of basic information: definitions and guides to histories of the growth of open access publishing and citation archives and descriptions of selected major open access activities. It moves on to summarize major points of difference between proponents and opponents of nongovernmental open access publishing and databases, and then highlights federal, including National Institutes of Health (NIH), open access activities and contentious issues surrounding these developments. The report also briefly describes open access developments in the United Kingdom (where a number of governmental and nongovernmental initiatives have occurred) and in the international arena. Finally, controversial issues which could receive attention in the 109th Congress are summarized.
Date: June 22, 2006
Creator: Knezo, Genevieve J.
Partner: UNT Libraries Government Documents Department

Balkan Cooperation on War Crimes Issues

Description: From late 2004 through early 2005, a combination of intensified international pressure and deadlines associated with Euro- Atlantic integration processes prompted a spate of transfers of indicted persons to the tribunal. Full cooperation with ICTY is a key prerequisite to further progress toward a shared long-term goal for the western Balkan countries: closer association with and eventual membership in the European Union (EU) and NATO. As of March 2006, six persons indicted by the International Criminal Tribunal for the former Yugoslavia (ICTY) remained at large, including wartime Bosnian Serb leaders Radovan Karadzic and Gen. Ratko Mladic.
Date: March 22, 2006
Creator: Kim, Julie
Partner: UNT Libraries Government Documents Department

Environmental Protection Issues in the 109th Congress

Description: Environmental protection concerns span a wide variety of issues, including clean air, water quality, chemical security, and environmental aspects of other major issue areas such as transportation and defense. This issue brief provides an overview of key environmental issues that are receiving or may receive attention in the 109th Congress. The sections on specific issues contain references to more detailed and extensive CRS reports on the subjects covered.
Date: May 22, 2006
Creator: Fletcher, Susan R. & Isler, Margaret M.
Partner: UNT Libraries Government Documents Department

AIDS: The Ryan White CARE Act

Description: This report discusses the Ryan White Comprehensive AIDS Resources Emergency (CARE) Act, which makes federal funds available to metropolitan areas and states to assist in health care costs and support services for individuals and families affected by the human immunodeficiency virus (HIV) or acquired immune deficiency syndrome (AIDS). This report discusses related legislation and appropriations.
Date: February 22, 2006
Creator: Johnson, Judith A. & Morgan, Paulette C.
Partner: UNT Libraries Government Documents Department

Digital Television: An Overview

Description: Digital television (DTV) is a new television service representing the most significant development in television technology since the advent of color television in the 1950s. DTV can provide sharper pictures, a wider screen, CD-quality sound, better color rendition, and other new services currently being developed. A successful deployment of DTV requires: the development by content providers of compelling digital programming; the delivery of digital signals to consumers by broadcast television stations, as well as cable and satellite television systems; and the widespread purchase and adoption by consumers of digital television equipment. A key issue in the Congressional debate over the digital transition has been addressing the millions of American over-the-air households whose existing analog televisions will require converter boxes in order to receive digital signals when the analog signal is turned off.
Date: August 22, 2006
Creator: Kruger, Lennard G.
Partner: UNT Libraries Government Documents Department

Cuba and the State Sponsors of Terrorism List

Description: Cuba was first added to the State Department's list of states sponsoring international terrorism in 1982. At the time, numerous U.S. government reports and statements under the Reagan Administration alleged Cuba's ties to international terrorism and its support for terrorist groups in Latin America. Cuba remains on the state-sponsored terrorism list with four other countries: Iran, Syria, Sudan, and North Korea. Cuba's retention on the terrorism list has received more attention in recent years in light of increased support for legislative initiatives to lift some U.S. sanctions under the current economic embargo. Supporters of keeping Cuba on the terrorism list argue that there is ample evidence that Cuba supports terrorism. Critics of retaining Cuba on the terrorism list maintain that the policy is a holdover from the Cold War and that Cuba no longer supports terrorism abroad.
Date: August 22, 2006
Creator: Sullivan, Mark P.
Partner: UNT Libraries Government Documents Department

China-U.S. Relations: Current Issues and Implications for U.S. Policy

Description: The bilateral relationship between the U.S. and the People's Republic of China (PRC) is vitally important, touching on a wide range of areas including, among others, economic policy, security, foreign relations, and human rights. This report addresses relevant policy questions in current U.S.-China relations, discusses trends and key legislation in the current Congress, and provides a chronology of developments and high-level exchanges.
Date: September 22, 2006
Creator: Dumbaugh, Kerry
Partner: UNT Libraries Government Documents Department